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authorDmitry Torokhov <dtor_core@ameritech.net>2006-04-29 01:11:23 -0400
committerDmitry Torokhov <dtor_core@ameritech.net>2006-04-29 01:11:23 -0400
commit7b7e394185014e0f3bd8989cac937003f20ef9ce (patch)
tree3beda5f979bba0aa9822534e239cf1b45f3be69c /drivers/isdn/gigaset
parentddc5d3414593e4d7ad7fbd33e7f7517fcc234544 (diff)
parent693f7d362055261882659475d2ef022e32edbff1 (diff)
Merge rsync://rsync.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'drivers/isdn/gigaset')
-rw-r--r--drivers/isdn/gigaset/Kconfig4
-rw-r--r--drivers/isdn/gigaset/asyncdata.c132
-rw-r--r--drivers/isdn/gigaset/bas-gigaset.c1321
-rw-r--r--drivers/isdn/gigaset/common.c504
-rw-r--r--drivers/isdn/gigaset/ev-layer.c670
-rw-r--r--drivers/isdn/gigaset/gigaset.h601
-rw-r--r--drivers/isdn/gigaset/i4l.c229
-rw-r--r--drivers/isdn/gigaset/interface.c235
-rw-r--r--drivers/isdn/gigaset/isocdata.c139
-rw-r--r--drivers/isdn/gigaset/proc.c51
-rw-r--r--drivers/isdn/gigaset/usb-gigaset.c455
11 files changed, 2152 insertions, 2189 deletions
diff --git a/drivers/isdn/gigaset/Kconfig b/drivers/isdn/gigaset/Kconfig
index 53c4fb62ed8..5b203fe21dc 100644
--- a/drivers/isdn/gigaset/Kconfig
+++ b/drivers/isdn/gigaset/Kconfig
@@ -3,8 +3,8 @@ menu "Siemens Gigaset"
config ISDN_DRV_GIGASET
tristate "Siemens Gigaset support (isdn)"
- depends on ISDN_I4L && m
-# depends on ISDN_I4L && MODULES
+ depends on ISDN_I4L
+ select CRC_CCITT
help
Say m here if you have a Gigaset or Sinus isdn device.
diff --git a/drivers/isdn/gigaset/asyncdata.c b/drivers/isdn/gigaset/asyncdata.c
index 171f8b703d6..ce3cd77094b 100644
--- a/drivers/isdn/gigaset/asyncdata.c
+++ b/drivers/isdn/gigaset/asyncdata.c
@@ -3,7 +3,7 @@
*
* Copyright (c) 2005 by Tilman Schmidt <tilman@imap.cc>,
* Hansjoerg Lipp <hjlipp@web.de>,
- * Stefan Eilers <Eilers.Stefan@epost.de>.
+ * Stefan Eilers.
*
* =====================================================================
* This program is free software; you can redistribute it and/or
@@ -11,10 +11,6 @@
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
* =====================================================================
- * ToDo: ...
- * =====================================================================
- * Version: $Id: asyncdata.c,v 1.2.2.7 2005/11/13 23:05:18 hjlipp Exp $
- * =====================================================================
*/
#include "gigaset.h"
@@ -45,7 +41,7 @@ static inline int muststuff(unsigned char c)
* number of processed bytes
*/
static inline int cmd_loop(unsigned char c, unsigned char *src, int numbytes,
- struct inbuf_t *inbuf)
+ struct inbuf_t *inbuf)
{
struct cardstate *cs = inbuf->cs;
unsigned cbytes = cs->cbytes;
@@ -55,10 +51,11 @@ static inline int cmd_loop(unsigned char c, unsigned char *src, int numbytes,
for (;;) {
cs->respdata[cbytes] = c;
if (c == 10 || c == 13) {
- dbg(DEBUG_TRANSCMD, "%s: End of Command (%d Bytes)",
- __func__, cbytes);
+ gig_dbg(DEBUG_TRANSCMD, "%s: End of Command (%d Bytes)",
+ __func__, cbytes);
cs->cbytes = cbytes;
- gigaset_handle_modem_response(cs); /* can change cs->dle */
+ gigaset_handle_modem_response(cs); /* can change
+ cs->dle */
cbytes = 0;
if (cs->dle &&
@@ -71,7 +68,7 @@ static inline int cmd_loop(unsigned char c, unsigned char *src, int numbytes,
if (cbytes < MAX_RESP_SIZE - 1)
cbytes++;
else
- warn("response too large");
+ dev_warn(cs->dev, "response too large\n");
}
if (!numbytes)
@@ -96,11 +93,12 @@ static inline int cmd_loop(unsigned char c, unsigned char *src, int numbytes,
* number of processed bytes
*/
static inline int lock_loop(unsigned char *src, int numbytes,
- struct inbuf_t *inbuf)
+ struct inbuf_t *inbuf)
{
struct cardstate *cs = inbuf->cs;
- gigaset_dbg_buffer(DEBUG_LOCKCMD, "received response", numbytes, src, 0);
+ gigaset_dbg_buffer(DEBUG_LOCKCMD, "received response",
+ numbytes, src);
gigaset_if_receive(cs, src, numbytes);
return numbytes;
@@ -115,24 +113,18 @@ static inline int lock_loop(unsigned char *src, int numbytes,
* numbytes (all bytes processed) on error --FIXME
*/
static inline int hdlc_loop(unsigned char c, unsigned char *src, int numbytes,
- struct inbuf_t *inbuf)
+ struct inbuf_t *inbuf)
{
struct cardstate *cs = inbuf->cs;
struct bc_state *bcs = inbuf->bcs;
- int inputstate;
- __u16 fcs;
- struct sk_buff *skb;
+ int inputstate = bcs->inputstate;
+ __u16 fcs = bcs->fcs;
+ struct sk_buff *skb = bcs->skb;
unsigned char error;
struct sk_buff *compskb;
int startbytes = numbytes;
int l;
- IFNULLRETVAL(bcs, numbytes);
- inputstate = bcs->inputstate;
- fcs = bcs->fcs;
- skb = bcs->skb;
- IFNULLRETVAL(skb, numbytes);
-
if (unlikely(inputstate & INS_byte_stuff)) {
inputstate &= ~INS_byte_stuff;
goto byte_stuff;
@@ -156,39 +148,37 @@ byte_stuff:
c ^= PPP_TRANS;
#ifdef CONFIG_GIGASET_DEBUG
if (unlikely(!muststuff(c)))
- dbg(DEBUG_HDLC,
- "byte stuffed: 0x%02x", c);
+ gig_dbg(DEBUG_HDLC, "byte stuffed: 0x%02x", c);
#endif
} else if (unlikely(c == PPP_FLAG)) {
if (unlikely(inputstate & INS_skip_frame)) {
if (!(inputstate & INS_have_data)) { /* 7E 7E */
- //dbg(DEBUG_HDLC, "(7e)7e------------------------");
#ifdef CONFIG_GIGASET_DEBUG
++bcs->emptycount;
#endif
} else
- dbg(DEBUG_HDLC,
+ gig_dbg(DEBUG_HDLC,
"7e----------------------------");
/* end of frame */
error = 1;
gigaset_rcv_error(NULL, cs, bcs);
} else if (!(inputstate & INS_have_data)) { /* 7E 7E */
- //dbg(DEBUG_HDLC, "(7e)7e------------------------");
#ifdef CONFIG_GIGASET_DEBUG
++bcs->emptycount;
#endif
break;
} else {
- dbg(DEBUG_HDLC,
- "7e----------------------------");
+ gig_dbg(DEBUG_HDLC,
+ "7e----------------------------");
/* end of frame */
error = 0;
if (unlikely(fcs != PPP_GOODFCS)) {
- err("Packet checksum at %lu failed, "
- "packet is corrupted (%u bytes)!",
+ dev_err(cs->dev,
+ "Packet checksum at %lu failed, "
+ "packet is corrupted (%u bytes)!\n",
bcs->rcvbytes, skb->len);
compskb = NULL;
gigaset_rcv_error(compskb, cs, bcs);
@@ -202,9 +192,11 @@ byte_stuff:
skb = NULL;
inputstate |= INS_skip_frame;
if (l == 1) {
- err("invalid packet size (1)!");
+ dev_err(cs->dev,
+ "invalid packet size (1)!\n");
error = 1;
- gigaset_rcv_error(NULL, cs, bcs);
+ gigaset_rcv_error(NULL,
+ cs, bcs);
}
}
if (likely(!(error ||
@@ -227,7 +219,8 @@ byte_stuff:
} else if (likely((skb = dev_alloc_skb(SBUFSIZE + HW_HDR_LEN)) != NULL)) {
skb_reserve(skb, HW_HDR_LEN);
} else {
- warn("could not allocate new skb");
+ dev_warn(cs->dev,
+ "could not allocate new skb\n");
inputstate |= INS_skip_frame;
}
@@ -235,7 +228,7 @@ byte_stuff:
#ifdef CONFIG_GIGASET_DEBUG
} else if (unlikely(muststuff(c))) {
/* Should not happen. Possible after ZDLE=1<CR><LF>. */
- dbg(DEBUG_HDLC, "not byte stuffed: 0x%02x", c);
+ gig_dbg(DEBUG_HDLC, "not byte stuffed: 0x%02x", c);
#endif
}
@@ -243,8 +236,8 @@ byte_stuff:
#ifdef CONFIG_GIGASET_DEBUG
if (unlikely(!(inputstate & INS_have_data))) {
- dbg(DEBUG_HDLC,
- "7e (%d x) ================", bcs->emptycount);
+ gig_dbg(DEBUG_HDLC, "7e (%d x) ================",
+ bcs->emptycount);
bcs->emptycount = 0;
}
#endif
@@ -253,14 +246,13 @@ byte_stuff:
if (likely(!(inputstate & INS_skip_frame))) {
if (unlikely(skb->len == SBUFSIZE)) {
- warn("received packet too long");
+ dev_warn(cs->dev, "received packet too long\n");
dev_kfree_skb_any(skb);
skb = NULL;
inputstate |= INS_skip_frame;
break;
}
- *gigaset_skb_put_quick(skb, 1) = c;
- /* *__skb_put (skb, 1) = c; */
+ *__skb_put(skb, 1) = c;
fcs = crc_ccitt_byte(fcs, c);
}
@@ -289,19 +281,14 @@ byte_stuff:
* numbytes (all bytes processed) on error --FIXME
*/
static inline int iraw_loop(unsigned char c, unsigned char *src, int numbytes,
- struct inbuf_t *inbuf)
+ struct inbuf_t *inbuf)
{
struct cardstate *cs = inbuf->cs;
struct bc_state *bcs = inbuf->bcs;
- int inputstate;
- struct sk_buff *skb;
+ int inputstate = bcs->inputstate;
+ struct sk_buff *skb = bcs->skb;
int startbytes = numbytes;
- IFNULLRETVAL(bcs, numbytes);
- inputstate = bcs->inputstate;
- skb = bcs->skb;
- IFNULLRETVAL(skb, numbytes);
-
for (;;) {
/* add character */
inputstate |= INS_have_data;
@@ -309,13 +296,13 @@ static inline int iraw_loop(unsigned char c, unsigned char *src, int numbytes,
if (likely(!(inputstate & INS_skip_frame))) {
if (unlikely(skb->len == SBUFSIZE)) {
//FIXME just pass skb up and allocate a new one
- warn("received packet too long");
+ dev_warn(cs->dev, "received packet too long\n");
dev_kfree_skb_any(skb);
skb = NULL;
inputstate |= INS_skip_frame;
break;
}
- *gigaset_skb_put_quick(skb, 1) = gigaset_invtab[c];
+ *__skb_put(skb, 1) = gigaset_invtab[c];
}
if (unlikely(!numbytes))
@@ -343,7 +330,7 @@ static inline int iraw_loop(unsigned char c, unsigned char *src, int numbytes,
!= NULL)) {
skb_reserve(skb, HW_HDR_LEN);
} else {
- warn("could not allocate new skb");
+ dev_warn(cs->dev, "could not allocate new skb\n");
inputstate |= INS_skip_frame;
}
}
@@ -364,13 +351,13 @@ void gigaset_m10x_input(struct inbuf_t *inbuf)
head = atomic_read(&inbuf->head);
tail = atomic_read(&inbuf->tail);
- dbg(DEBUG_INTR, "buffer state: %u -> %u", head, tail);
+ gig_dbg(DEBUG_INTR, "buffer state: %u -> %u", head, tail);
if (head != tail) {
cs = inbuf->cs;
src = inbuf->data + head;
numbytes = (head > tail ? RBUFSIZE : tail) - head;
- dbg(DEBUG_INTR, "processing %u bytes", numbytes);
+ gig_dbg(DEBUG_INTR, "processing %u bytes", numbytes);
while (numbytes) {
if (atomic_read(&cs->mstate) == MS_LOCKED) {
@@ -392,8 +379,7 @@ void gigaset_m10x_input(struct inbuf_t *inbuf)
if (!(inbuf->inputstate & INS_DLE_char)) {
- /* FIXME Einfach je nach Modus Funktionszeiger in cs setzen [hier+hdlc_loop]? */
- /* FIXME Spart folgendes "if" und ermoeglicht andere Protokolle */
+ /* FIXME use function pointers? */
if (inbuf->inputstate & INS_command)
procbytes = cmd_loop(c, src, numbytes, inbuf);
else if (inbuf->bcs->proto2 == ISDN_PROTO_L2_HDLC)
@@ -403,13 +389,14 @@ void gigaset_m10x_input(struct inbuf_t *inbuf)
src += procbytes;
numbytes -= procbytes;
- } else { /* DLE-char */
+ } else { /* DLE char */
inbuf->inputstate &= ~INS_DLE_char;
switch (c) {
case 'X': /*begin of command*/
#ifdef CONFIG_GIGASET_DEBUG
if (inbuf->inputstate & INS_command)
- err("received <DLE> 'X' in command mode");
+ dev_err(cs->dev,
+ "received <DLE> 'X' in command mode\n");
#endif
inbuf->inputstate |=
INS_command | INS_DLE_command;
@@ -417,7 +404,8 @@ void gigaset_m10x_input(struct inbuf_t *inbuf)
case '.': /*end of command*/
#ifdef CONFIG_GIGASET_DEBUG
if (!(inbuf->inputstate & INS_command))
- err("received <DLE> '.' in hdlc mode");
+ dev_err(cs->dev,
+ "received <DLE> '.' in hdlc mode\n");
#endif
inbuf->inputstate &= cs->dle ?
~(INS_DLE_command|INS_command)
@@ -425,7 +413,9 @@ void gigaset_m10x_input(struct inbuf_t *inbuf)
break;
//case DLE_FLAG: /*DLE_FLAG in data stream*/ /* schon oben behandelt! */
default:
- err("received 0x10 0x%02x!", (int) c);
+ dev_err(cs->dev,
+ "received 0x10 0x%02x!\n",
+ (int) c);
/* FIXME: reset driver?? */
}
}
@@ -444,7 +434,7 @@ nextbyte:
}
}
- dbg(DEBUG_INTR, "setting head to %u", head);
+ gig_dbg(DEBUG_INTR, "setting head to %u", head);
atomic_set(&inbuf->head, head);
}
}
@@ -479,14 +469,13 @@ static struct sk_buff *HDLC_Encode(struct sk_buff *skb, int head, int tail)
stuf_cnt++;
fcs = crc_ccitt_byte(fcs, *cp++);
}
- fcs ^= 0xffff; /* complement */
+ fcs ^= 0xffff; /* complement */
/* size of new buffer: original size + number of stuffing bytes
* + 2 bytes FCS + 2 stuffing bytes for FCS (if needed) + 2 flag bytes
*/
hdlc_skb = dev_alloc_skb(skb->len + stuf_cnt + 6 + tail + head);
if (!hdlc_skb) {
- err("unable to allocate memory for HDLC encoding!");
dev_kfree_skb(skb);
return NULL;
}
@@ -508,7 +497,7 @@ static struct sk_buff *HDLC_Encode(struct sk_buff *skb, int head, int tail)
}
/* Finally add FCS (byte stuffed) and flag sequence */
- c = (fcs & 0x00ff); /* least significant byte first */
+ c = (fcs & 0x00ff); /* least significant byte first */
if (muststuff(c)) {
*(skb_put(hdlc_skb, 1)) = PPP_ESCAPE;
c ^= PPP_TRANS;
@@ -546,7 +535,6 @@ static struct sk_buff *iraw_encode(struct sk_buff *skb, int head, int tail)
/* worst case: every byte must be stuffed */
iraw_skb = dev_alloc_skb(2*skb->len + tail + head);
if (!iraw_skb) {
- err("unable to allocate memory for HDLC encoding!");
dev_kfree_skb(skb);
return NULL;
}
@@ -577,21 +565,23 @@ static struct sk_buff *iraw_encode(struct sk_buff *skb, int head, int tail)
*/
int gigaset_m10x_send_skb(struct bc_state *bcs, struct sk_buff *skb)
{
- unsigned len;
-
- IFNULLRETVAL(bcs, -EFAULT);
- IFNULLRETVAL(skb, -EFAULT);
- len = skb->len;
+ unsigned len = skb->len;
+ unsigned long flags;
if (bcs->proto2 == ISDN_PROTO_L2_HDLC)
skb = HDLC_Encode(skb, HW_HDR_LEN, 0);
else
skb = iraw_encode(skb, HW_HDR_LEN, 0);
- if (!skb)
+ if (!skb) {
+ err("unable to allocate memory for encoding!\n");
return -ENOMEM;
+ }
skb_queue_tail(&bcs->squeue, skb);
- tasklet_schedule(&bcs->cs->write_tasklet);
+ spin_lock_irqsave(&bcs->cs->lock, flags);
+ if (bcs->cs->connected)
+ tasklet_schedule(&bcs->cs->write_tasklet);
+ spin_unlock_irqrestore(&bcs->cs->lock, flags);
return len; /* ok so far */
}
diff --git a/drivers/isdn/gigaset/bas-gigaset.c b/drivers/isdn/gigaset/bas-gigaset.c
index 31f0f07832b..eb41aba3dde 100644
--- a/drivers/isdn/gigaset/bas-gigaset.c
+++ b/drivers/isdn/gigaset/bas-gigaset.c
@@ -3,9 +3,7 @@
*
* Copyright (c) 2001 by Hansjoerg Lipp <hjlipp@web.de>,
* Tilman Schmidt <tilman@imap.cc>,
- * Stefan Eilers <Eilers.Stefan@epost.de>.
- *
- * Based on usb-gigaset.c.
+ * Stefan Eilers.
*
* =====================================================================
* This program is free software; you can redistribute it and/or
@@ -13,10 +11,6 @@
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
* =====================================================================
- * ToDo: ...
- * =====================================================================
- * Version: $Id: bas-gigaset.c,v 1.52.4.19 2006/02/04 18:28:16 hjlipp Exp $
- * =====================================================================
*/
#include "gigaset.h"
@@ -30,7 +24,7 @@
#include <linux/moduleparam.h>
/* Version Information */
-#define DRIVER_AUTHOR "Tilman Schmidt <tilman@imap.cc>, Hansjoerg Lipp <hjlipp@web.de>, Stefan Eilers <Eilers.Stefan@epost.de>"
+#define DRIVER_AUTHOR "Tilman Schmidt <tilman@imap.cc>, Hansjoerg Lipp <hjlipp@web.de>, Stefan Eilers"
#define DRIVER_DESC "USB Driver for Gigaset 307x"
@@ -50,19 +44,20 @@ MODULE_PARM_DESC(cidmode, "Call-ID mode");
#define GIGASET_DEVFSNAME "gig/bas/"
#define GIGASET_DEVNAME "ttyGB"
-#define IF_WRITEBUF 256 //FIXME
+/* length limit according to Siemens 3070usb-protokoll.doc ch. 2.1 */
+#define IF_WRITEBUF 264
/* Values for the Gigaset 307x */
#define USB_GIGA_VENDOR_ID 0x0681
-#define USB_GIGA_PRODUCT_ID 0x0001
-#define USB_4175_PRODUCT_ID 0x0002
+#define USB_3070_PRODUCT_ID 0x0001
+#define USB_3075_PRODUCT_ID 0x0002
#define USB_SX303_PRODUCT_ID 0x0021
#define USB_SX353_PRODUCT_ID 0x0022
/* table of devices that work with this driver */
static struct usb_device_id gigaset_table [] = {
- { USB_DEVICE(USB_GIGA_VENDOR_ID, USB_GIGA_PRODUCT_ID) },
- { USB_DEVICE(USB_GIGA_VENDOR_ID, USB_4175_PRODUCT_ID) },
+ { USB_DEVICE(USB_GIGA_VENDOR_ID, USB_3070_PRODUCT_ID) },
+ { USB_DEVICE(USB_GIGA_VENDOR_ID, USB_3075_PRODUCT_ID) },
{ USB_DEVICE(USB_GIGA_VENDOR_ID, USB_SX303_PRODUCT_ID) },
{ USB_DEVICE(USB_GIGA_VENDOR_ID, USB_SX353_PRODUCT_ID) },
{ } /* Terminating entry */
@@ -70,9 +65,6 @@ static struct usb_device_id gigaset_table [] = {
MODULE_DEVICE_TABLE(usb, gigaset_table);
-/* Get a minor range for your devices from the usb maintainer */
-#define USB_SKEL_MINOR_BASE 200
-
/*======================= local function prototypes =============================*/
/* This function is called if a new device is connected to the USB port. It
@@ -84,29 +76,33 @@ static int gigaset_probe(struct usb_interface *interface,
/* Function will be called if the device is unplugged */
static void gigaset_disconnect(struct usb_interface *interface);
+static void read_ctrl_callback(struct urb *, struct pt_regs *);
+static void stopurbs(struct bas_bc_state *);
+static int atwrite_submit(struct cardstate *, unsigned char *, int);
+static int start_cbsend(struct cardstate *);
/*==============================================================================*/
struct bas_cardstate {
- struct usb_device *udev; /* USB device pointer */
- struct usb_interface *interface; /* interface for this device */
+ struct usb_device *udev; /* USB device pointer */
+ struct usb_interface *interface; /* interface for this device */
unsigned char minor; /* starting minor number */
- struct urb *urb_ctrl; /* control pipe default URB */
+ struct urb *urb_ctrl; /* control pipe default URB */
struct usb_ctrlrequest dr_ctrl;
struct timer_list timer_ctrl; /* control request timeout */
struct timer_list timer_atrdy; /* AT command ready timeout */
- struct urb *urb_cmd_out; /* for sending AT commands */
+ struct urb *urb_cmd_out; /* for sending AT commands */
struct usb_ctrlrequest dr_cmd_out;
int retry_cmd_out;
- struct urb *urb_cmd_in; /* for receiving AT replies */
+ struct urb *urb_cmd_in; /* for receiving AT replies */
struct usb_ctrlrequest dr_cmd_in;
struct timer_list timer_cmd_in; /* receive request timeout */
- unsigned char *rcvbuf; /* AT reply receive buffer */
+ unsigned char *rcvbuf; /* AT reply receive buffer */
- struct urb *urb_int_in; /* URB for interrupt pipe */
+ struct urb *urb_int_in; /* URB for interrupt pipe */
unsigned char int_in_buf[3];
spinlock_t lock; /* locks all following */
@@ -118,12 +114,14 @@ struct bas_cardstate {
};
/* status of direct USB connection to 307x base (bits in basstate) */
-#define BS_ATOPEN 0x001
-#define BS_B1OPEN 0x002
-#define BS_B2OPEN 0x004
-#define BS_ATREADY 0x008
-#define BS_INIT 0x010
-#define BS_ATTIMER 0x020
+#define BS_ATOPEN 0x001 /* AT channel open */
+#define BS_B1OPEN 0x002 /* B channel 1 open */
+#define BS_B2OPEN 0x004 /* B channel 2 open */
+#define BS_ATREADY 0x008 /* base ready for AT command */
+#define BS_INIT 0x010 /* base has signalled INIT_OK */
+#define BS_ATTIMER 0x020 /* waiting for HD_READY_SEND_ATDATA */
+#define BS_ATRDPEND 0x040 /* urb_cmd_in in use */
+#define BS_ATWRPEND 0x080 /* urb_cmd_out in use */
static struct gigaset_driver *driver = NULL;
@@ -137,6 +135,47 @@ static struct usb_driver gigaset_usb_driver = {
.id_table = gigaset_table,
};
+/* get message text for usb_submit_urb return code
+ */
+static char *get_usb_rcmsg(int rc)
+{
+ static char unkmsg[28];
+
+ switch (rc) {
+ case 0:
+ return "success";
+ case -ENOMEM:
+ return "out of memory";
+ case -ENODEV:
+ return "device not present";
+ case -ENOENT:
+ return "endpoint not present";
+ case -ENXIO:
+ return "URB type not supported";
+ case -EINVAL:
+ return "invalid argument";
+ case -EAGAIN:
+ return "start frame too early or too much scheduled";
+ case -EFBIG:
+ return "too many isochronous frames requested";
+ case -EPIPE:
+ return "endpoint stalled";
+ case -EMSGSIZE:
+ return "invalid packet size";
+ case -ENOSPC:
+ return "would overcommit USB bandwidth";
+ case -ESHUTDOWN:
+ return "device shut down";
+ case -EPERM:
+ return "reject flag set";
+ case -EHOSTUNREACH:
+ return "device suspended";
+ default:
+ snprintf(unkmsg, sizeof(unkmsg), "unknown error %d", rc);
+ return unkmsg;
+ }
+}
+
/* get message text for USB status code
*/
static char *get_usb_statmsg(int status)
@@ -147,43 +186,37 @@ static char *get_usb_statmsg(int status)
case 0:
return "success";
case -ENOENT:
- return "canceled";
- case -ECONNRESET:
- return "canceled (async)";
+ return "unlinked (sync)";
case -EINPROGRESS:
return "pending";
case -EPROTO:
- return "bit stuffing or unknown USB error";
+ return "bit stuffing error, timeout, or unknown USB error";
case -EILSEQ:
- return "Illegal byte sequence (CRC mismatch)";
- case -EPIPE:
- return "babble detect or endpoint stalled";
- case -ENOSR:
- return "buffer error";
+ return "CRC mismatch, timeout, or unknown USB error";
case -ETIMEDOUT:
return "timed out";
- case -ENODEV:
- return "device not present";
+ case -EPIPE:
+ return "endpoint stalled";
+ case -ECOMM:
+ return "IN buffer overrun";
+ case -ENOSR:
+ return "OUT buffer underrun";
+ case -EOVERFLOW:
+ return "too much data";
case -EREMOTEIO:
return "short packet detected";
+ case -ENODEV:
+ return "device removed";
case -EXDEV:
return "partial isochronous transfer";
case -EINVAL:
return "invalid argument";
- case -ENXIO:
- return "URB already queued";
- case -EAGAIN:
- return "isochronous start frame too early or too much scheduled";
- case -EFBIG:
- return "too many isochronous frames requested";
- case -EMSGSIZE:
- return "endpoint message size zero";
+ case -ECONNRESET:
+ return "unlinked (async)";
case -ESHUTDOWN:
- return "endpoint shutdown";
- case -EBUSY:
- return "another request pending";
+ return "device shut down";
default:
- snprintf(unkmsg, sizeof(unkmsg), "unknown error %d", status);
+ snprintf(unkmsg, sizeof(unkmsg), "unknown status %d", status);
return unkmsg;
}
}
@@ -208,53 +241,54 @@ static inline char *usb_pipetype_str(int pipe)
* write content of URB to syslog for debugging
*/
static inline void dump_urb(enum debuglevel level, const char *tag,
- struct urb *urb)
+ struct urb *urb)
{
#ifdef CONFIG_GIGASET_DEBUG
int i;
- IFNULLRET(tag);
- dbg(level, "%s urb(0x%08lx)->{", tag, (unsigned long) urb);
+ gig_dbg(level, "%s urb(0x%08lx)->{", tag, (unsigned long) urb);
if (urb) {
- dbg(level,
- " dev=0x%08lx, pipe=%s:EP%d/DV%d:%s, "
- "status=%d, hcpriv=0x%08lx, transfer_flags=0x%x,",
- (unsigned long) urb->dev,
- usb_pipetype_str(urb->pipe),
- usb_pipeendpoint(urb->pipe), usb_pipedevice(urb->pipe),
- usb_pipein(urb->pipe) ? "in" : "out",
- urb->status, (unsigned long) urb->hcpriv,
- urb->transfer_flags);
- dbg(level,
- " transfer_buffer=0x%08lx[%d], actual_length=%d, "
- "bandwidth=%d, setup_packet=0x%08lx,",
- (unsigned long) urb->transfer_buffer,
- urb->transfer_buffer_length, urb->actual_length,
- urb->bandwidth, (unsigned long) urb->setup_packet);
- dbg(level,
- " start_frame=%d, number_of_packets=%d, interval=%d, "
- "error_count=%d,",
- urb->start_frame, urb->number_of_packets, urb->interval,
- urb->error_count);
- dbg(level,
- " context=0x%08lx, complete=0x%08lx, iso_frame_desc[]={",
- (unsigned long) urb->context,
- (unsigned long) urb->complete);
+ gig_dbg(level,
+ " dev=0x%08lx, pipe=%s:EP%d/DV%d:%s, "
+ "status=%d, hcpriv=0x%08lx, transfer_flags=0x%x,",
+ (unsigned long) urb->dev,
+ usb_pipetype_str(urb->pipe),
+ usb_pipeendpoint(urb->pipe), usb_pipedevice(urb->pipe),
+ usb_pipein(urb->pipe) ? "in" : "out",
+ urb->status, (unsigned long) urb->hcpriv,
+ urb->transfer_flags);
+ gig_dbg(level,
+ " transfer_buffer=0x%08lx[%d], actual_length=%d, "
+ "bandwidth=%d, setup_packet=0x%08lx,",
+ (unsigned long) urb->transfer_buffer,
+ urb->transfer_buffer_length, urb->actual_length,
+ urb->bandwidth, (unsigned long) urb->setup_packet);
+ gig_dbg(level,
+ " start_frame=%d, number_of_packets=%d, interval=%d, "
+ "error_count=%d,",
+ urb->start_frame, urb->number_of_packets, urb->interval,
+ urb->error_count);
+ gig_dbg(level,
+ " context=0x%08lx, complete=0x%08lx, "
+ "iso_frame_desc[]={",
+ (unsigned long) urb->context,
+ (unsigned long) urb->complete);
for (i = 0; i < urb->number_of_packets; i++) {
- struct usb_iso_packet_descriptor *pifd = &urb->iso_frame_desc[i];
- dbg(level,
- " {offset=%u, length=%u, actual_length=%u, "
- "status=%u}",
- pifd->offset, pifd->length, pifd->actual_length,
- pifd->status);
+ struct usb_iso_packet_descriptor *pifd
+ = &urb->iso_frame_desc[i];
+ gig_dbg(level,
+ " {offset=%u, length=%u, actual_length=%u, "
+ "status=%u}",
+ pifd->offset, pifd->length, pifd->actual_length,
+ pifd->status);
}
}
- dbg(level, "}}");
+ gig_dbg(level, "}}");
#endif
}
/* read/set modem control bits etc. (m10x only) */
static int gigaset_set_modem_ctrl(struct cardstate *cs, unsigned old_state,
- unsigned new_state)
+ unsigned new_state)
{
return -EINVAL;
}
@@ -280,43 +314,39 @@ static inline void error_hangup(struct bc_state *bcs)
{
struct cardstate *cs = bcs->cs;
- dbg(DEBUG_ANY,
- "%s: scheduling HUP for channel %d", __func__, bcs->channel);
+ gig_dbg(DEBUG_ANY, "%s: scheduling HUP for channel %d",
+ __func__, bcs->channel);
- if (!gigaset_add_event(cs, &bcs->at_state, EV_HUP, NULL, 0, NULL)) {
- //FIXME what should we do?
- return;
- }
+ if (!gigaset_add_event(cs, &bcs->at_state, EV_HUP, NULL, 0, NULL))
+ dev_err(cs->dev, "event queue full\n");
gigaset_schedule_event(cs);
}
/* error_reset
* reset Gigaset device because of an unrecoverable error
- * This function may be called from any context and takes care of scheduling
- * the necessary actions for execution outside of interrupt context.
+ * This function may be called from any context, and should take care of
+ * scheduling the necessary actions for execution outside of interrupt context.
+ * Right now, it just generates a kernel message calling for help.
* argument:
* controller state structure
*/
static inline void error_reset(struct cardstate *cs)
{
//FIXME try to recover without bothering the user
- err("unrecoverable error - please disconnect the Gigaset base to reset");
+ dev_err(cs->dev,
+ "unrecoverable error - please disconnect Gigaset base to reset\n");
}
/* check_pending
* check for completion of pending control request
* parameter:
- * urb USB request block of completed request
- * urb->context = hardware specific controller state structure
+ * ucs hardware specific controller state structure
*/
static void check_pending(struct bas_cardstate *ucs)
{
unsigned long flags;
- IFNULLRET(ucs);
- IFNULLRET(cardstate);
-
spin_lock_irqsave(&ucs->lock, flags);
switch (ucs->pending) {
case 0:
@@ -336,8 +366,6 @@ static void check_pending(struct bas_cardstate *ucs)
case HD_CLOSE_ATCHANNEL:
if (!(atomic_read(&ucs->basstate) & BS_ATOPEN))
ucs->pending = 0;
- //wake_up_interruptible(cs->initwait);
- //FIXME need own wait queue?
break;
case HD_CLOSE_B1CHANNEL:
if (!(atomic_read(&ucs->basstate) & BS_B1OPEN))
@@ -354,7 +382,9 @@ static void check_pending(struct bas_cardstate *ucs)
* are handled separately and should never end up here
*/
default:
- warn("unknown pending request 0x%02x cleared", ucs->pending);
+ dev_warn(&ucs->interface->dev,
+ "unknown pending request 0x%02x cleared\n",
+ ucs->pending);
ucs->pending = 0;
}
@@ -372,58 +402,53 @@ static void check_pending(struct bas_cardstate *ucs)
static void cmd_in_timeout(unsigned long data)
{
struct cardstate *cs = (struct cardstate *) data;
- struct bas_cardstate *ucs;
- unsigned long flags;
-
- IFNULLRET(cs);
- ucs = cs->hw.bas;
- IFNULLRET(ucs);
+ struct bas_cardstate *ucs = cs->hw.bas;
- spin_lock_irqsave(&cs->lock, flags);
- if (!atomic_read(&cs->connected)) {
- dbg(DEBUG_USBREQ, "%s: disconnected", __func__);
- spin_unlock_irqrestore(&cs->lock, flags);
- return;
- }
if (!ucs->rcvbuf_size) {
- dbg(DEBUG_USBREQ, "%s: no receive in progress", __func__);
- spin_unlock_irqrestore(&cs->lock, flags);
+ gig_dbg(DEBUG_USBREQ, "%s: no receive in progress", __func__);
return;
}
- spin_unlock_irqrestore(&cs->lock, flags);
- err("timeout reading AT response");
+ dev_err(cs->dev, "timeout reading AT response\n");
error_reset(cs); //FIXME retry?
}
+/* set/clear bits in base connection state, return previous state
+ */
+inline static int update_basstate(struct bas_cardstate *ucs,
+ int set, int clear)
+{
+ unsigned long flags;
+ int state;
-static void read_ctrl_callback(struct urb *urb, struct pt_regs *regs);
+ spin_lock_irqsave(&ucs->lock, flags);
+ state = atomic_read(&ucs->basstate);
+ atomic_set(&ucs->basstate, (state & ~clear) | set);
+ spin_unlock_irqrestore(&ucs->lock, flags);
+ return state;
+}
/* atread_submit
- * submit an HD_READ_ATMESSAGE command URB
+ * submit an HD_READ_ATMESSAGE command URB and optionally start a timeout
* parameters:
* cs controller state structure
* timeout timeout in 1/10 sec., 0: none
* return value:
* 0 on success
- * -EINVAL if a NULL pointer is encountered somewhere
* -EBUSY if another request is pending
* any URB submission error code
*/
static int atread_submit(struct cardstate *cs, int timeout)
{
- struct bas_cardstate *ucs;
+ struct bas_cardstate *ucs = cs->hw.bas;
int ret;
- IFNULLRETVAL(cs, -EINVAL);
- ucs = cs->hw.bas;
- IFNULLRETVAL(ucs, -EINVAL);
- IFNULLRETVAL(ucs->urb_cmd_in, -EINVAL);
+ gig_dbg(DEBUG_USBREQ, "-------> HD_READ_ATMESSAGE (%d)",
+ ucs->rcvbuf_size);
- dbg(DEBUG_USBREQ, "-------> HD_READ_ATMESSAGE (%d)", ucs->rcvbuf_size);
-
- if (ucs->urb_cmd_in->status == -EINPROGRESS) {
- err("could not submit HD_READ_ATMESSAGE: URB busy");
+ if (update_basstate(ucs, BS_ATRDPEND, 0) & BS_ATRDPEND) {
+ dev_err(cs->dev,
+ "could not submit HD_READ_ATMESSAGE: URB busy\n");
return -EBUSY;
}
@@ -433,19 +458,20 @@ static int atread_submit(struct cardstate *cs, int timeout)
ucs->dr_cmd_in.wIndex = 0;
ucs->dr_cmd_in.wLength = cpu_to_le16(ucs->rcvbuf_size);
usb_fill_control_urb(ucs->urb_cmd_in, ucs->udev,
- usb_rcvctrlpipe(ucs->udev, 0),
- (unsigned char*) & ucs->dr_cmd_in,
- ucs->rcvbuf, ucs->rcvbuf_size,
- read_ctrl_callback, cs->inbuf);
+ usb_rcvctrlpipe(ucs->udev, 0),
+ (unsigned char*) & ucs->dr_cmd_in,
+ ucs->rcvbuf, ucs->rcvbuf_size,
+ read_ctrl_callback, cs->inbuf);
if ((ret = usb_submit_urb(ucs->urb_cmd_in, SLAB_ATOMIC)) != 0) {
- err("could not submit HD_READ_ATMESSAGE: %s",
- get_usb_statmsg(ret));
+ update_basstate(ucs, 0, BS_ATRDPEND);
+ dev_err(cs->dev, "could not submit HD_READ_ATMESSAGE: %s\n",
+ get_usb_statmsg(ret));
return ret;
}
if (timeout > 0) {
- dbg(DEBUG_USBREQ, "setting timeout of %d/10 secs", timeout);
+ gig_dbg(DEBUG_USBREQ, "setting timeout of %d/10 secs", timeout);
ucs->timer_cmd_in.expires = jiffies + timeout * HZ / 10;
ucs->timer_cmd_in.data = (unsigned long) cs;
ucs->timer_cmd_in.function = cmd_in_timeout;
@@ -454,26 +480,6 @@ static int atread_submit(struct cardstate *cs, int timeout)
return 0;
}
-static void stopurbs(struct bas_bc_state *);
-static int start_cbsend(struct cardstate *);
-
-/* set/clear bits in base connection state
- */
-inline static void update_basstate(struct bas_cardstate *ucs,
- int set, int clear)
-{
- unsigned long flags;
- int state;
-
- spin_lock_irqsave(&ucs->lock, flags);
- state = atomic_read(&ucs->basstate);
- state &= ~clear;
- state |= set;
- atomic_set(&ucs->basstate, state);
- spin_unlock_irqrestore(&ucs->lock, flags);
-}
-
-
/* read_int_callback
* USB completion handler for interrupt pipe input
* called by the USB subsystem in interrupt context
@@ -483,48 +489,49 @@ inline static void update_basstate(struct bas_cardstate *ucs,
*/
static void read_int_callback(struct urb *urb, struct pt_regs *regs)
{
- struct cardstate *cs;
- struct bas_cardstate *ucs;
+ struct cardstate *cs = urb->context;
+ struct bas_cardstate *ucs = cs->hw.bas;
struct bc_state *bcs;
unsigned long flags;
- int status;
+ int rc;
unsigned l;
int channel;
- IFNULLRET(urb);
- cs = (struct cardstate *) urb->context;
- IFNULLRET(cs);
- ucs = cs->hw.bas;
- IFNULLRET(ucs);
-
- if (unlikely(!atomic_read(&cs->connected))) {
- warn("%s: disconnected", __func__);
- return;
- }
-
switch (urb->status) {
case 0: /* success */
break;
- case -ENOENT: /* canceled */
- case -ECONNRESET: /* canceled (async) */
+ case -ENOENT: /* cancelled */
+ case -ECONNRESET: /* cancelled (async) */
case -EINPROGRESS: /* pending */
/* ignore silently */
- dbg(DEBUG_USBREQ,
- "%s: %s", __func__, get_usb_statmsg(urb->status));
+ gig_dbg(DEBUG_USBREQ, "%s: %s",
+ __func__, get_usb_statmsg(urb->status));
+ return;
+ case -ENODEV: /* device removed */
+ case -ESHUTDOWN: /* device shut down */
+ //FIXME use this as disconnect indicator?
+ gig_dbg(DEBUG_USBREQ, "%s: device disconnected", __func__);
return;
default: /* severe trouble */
- warn("interrupt read: %s", get_usb_statmsg(urb->status));
+ dev_warn(cs->dev, "interrupt read: %s\n",
+ get_usb_statmsg(urb->status));
//FIXME corrective action? resubmission always ok?
goto resubmit;
}
+ /* drop incomplete packets even if the missing bytes wouldn't matter */
+ if (unlikely(urb->actual_length < 3)) {
+ dev_warn(cs->dev, "incomplete interrupt packet (%d bytes)\n",
+ urb->actual_length);
+ goto resubmit;
+ }
+
l = (unsigned) ucs->int_in_buf[1] +
(((unsigned) ucs->int_in_buf[2]) << 8);
- dbg(DEBUG_USBREQ,
- "<-------%d: 0x%02x (%u [0x%02x 0x%02x])", urb->actual_length,
- (int)ucs->int_in_buf[0], l,
- (int)ucs->int_in_buf[1], (int)ucs->int_in_buf[2]);
+ gig_dbg(DEBUG_USBREQ, "<-------%d: 0x%02x (%u [0x%02x 0x%02x])",
+ urb->actual_length, (int)ucs->int_in_buf[0], l,
+ (int)ucs->int_in_buf[1], (int)ucs->int_in_buf[2]);
channel = 0;
@@ -570,62 +577,68 @@ static void read_int_callback(struct urb *urb, struct pt_regs *regs)
case HD_B1_FLOW_CONTROL:
bcs = cs->bcs + channel;
atomic_add((l - BAS_NORMFRAME) * BAS_CORRFRAMES,
- &bcs->hw.bas->corrbytes);
- dbg(DEBUG_ISO,
- "Flow control (channel %d, sub %d): 0x%02x => %d",
- channel, bcs->hw.bas->numsub, l,
- atomic_read(&bcs->hw.bas->corrbytes));
+ &bcs->hw.bas->corrbytes);
+ gig_dbg(DEBUG_ISO,
+ "Flow control (channel %d, sub %d): 0x%02x => %d",
+ channel, bcs->hw.bas->numsub, l,
+ atomic_read(&bcs->hw.bas->corrbytes));
break;
case HD_RECEIVEATDATA_ACK: /* AT response ready to be received */
if (!l) {
- warn("HD_RECEIVEATDATA_ACK with length 0 ignored");
+ dev_warn(cs->dev,
+ "HD_RECEIVEATDATA_ACK with length 0 ignored\n");
break;
}
spin_lock_irqsave(&cs->lock, flags);
if (ucs->rcvbuf_size) {
- spin_unlock_irqrestore(&cs->lock, flags);
- err("receive AT data overrun, %d bytes lost", l);
- error_reset(cs); //FIXME reschedule
- break;
+ /* throw away previous buffer - we have no queue */
+ dev_err(cs->dev,
+ "receive AT data overrun, %d bytes lost\n",
+ ucs->rcvbuf_size);
+ kfree(ucs->rcvbuf);
+ ucs->rcvbuf_size = 0;
}
if ((ucs->rcvbuf = kmalloc(l, GFP_ATOMIC)) == NULL) {
spin_unlock_irqrestore(&cs->lock, flags);
- err("%s: out of memory, %d bytes lost", __func__, l);
- error_reset(cs); //FIXME reschedule
+ dev_err(cs->dev, "out of memory receiving AT data\n");
+ error_reset(cs);
break;
}
ucs->rcvbuf_size = l;
ucs->retry_cmd_in = 0;
- if ((status = atread_submit(cs, BAS_TIMEOUT)) < 0) {
+ if ((rc = atread_submit(cs, BAS_TIMEOUT)) < 0) {
kfree(ucs->rcvbuf);
ucs->rcvbuf = NULL;
ucs->rcvbuf_size = 0;
- error_reset(cs); //FIXME reschedule
+ if (rc != -ENODEV)
+ //FIXME corrective action?
+ error_reset(cs);
}
spin_unlock_irqrestore(&cs->lock, flags);
break;
case HD_RESET_INTERRUPT_PIPE_ACK:
- dbg(DEBUG_USBREQ, "HD_RESET_INTERRUPT_PIPE_ACK");
+ gig_dbg(DEBUG_USBREQ, "HD_RESET_INTERRUPT_PIPE_ACK");
break;
case HD_SUSPEND_END:
- dbg(DEBUG_USBREQ, "HD_SUSPEND_END");
+ gig_dbg(DEBUG_USBREQ, "HD_SUSPEND_END");
break;
default:
- warn("unknown Gigaset signal 0x%02x (%u) ignored",
- (int) ucs->int_in_buf[0], l);
+ dev_warn(cs->dev,
+ "unknown Gigaset signal 0x%02x (%u) ignored\n",
+ (int) ucs->int_in_buf[0], l);
}
check_pending(ucs);
resubmit:
- status = usb_submit_urb(urb, SLAB_ATOMIC);
- if (unlikely(status)) {
- err("could not resubmit interrupt URB: %s",
- get_usb_statmsg(status));
+ rc = usb_submit_urb(urb, SLAB_ATOMIC);
+ if (unlikely(rc != 0 && rc != -ENODEV)) {
+ dev_err(cs->dev, "could not resubmit interrupt URB: %s\n",
+ get_usb_rcmsg(rc));
error_reset(cs);
}
}
@@ -639,31 +652,17 @@ resubmit:
*/
static void read_ctrl_callback(struct urb *urb, struct pt_regs *regs)
{
- struct cardstate *cs;
- struct bas_cardstate *ucs;
- unsigned numbytes;
- unsigned long flags;
- struct inbuf_t *inbuf;
+ struct inbuf_t *inbuf = urb->context;
+ struct cardstate *cs = inbuf->cs;
+ struct bas_cardstate *ucs = cs->hw.bas;
int have_data = 0;
+ unsigned numbytes;
+ int rc;
- IFNULLRET(urb);
- inbuf = (struct inbuf_t *) urb->context;
- IFNULLRET(inbuf);
- cs = inbuf->cs;
- IFNULLRET(cs);
- ucs = cs->hw.bas;
- IFNULLRET(ucs);
-
- spin_lock_irqsave(&cs->lock, flags);
- if (!atomic_read(&cs->connected)) {
- warn("%s: disconnected", __func__);
- spin_unlock_irqrestore(&cs->lock, flags);
- return;
- }
+ update_basstate(ucs, 0, BS_ATRDPEND);
if (!ucs->rcvbuf_size) {
- warn("%s: no receive in progress", __func__);
- spin_unlock_irqrestore(&cs->lock, flags);
+ dev_warn(cs->dev, "%s: no receive in progress\n", __func__);
return;
}
@@ -673,12 +672,14 @@ static void read_ctrl_callback(struct urb *urb, struct pt_regs *regs)
case 0: /* normal completion */
numbytes = urb->actual_length;
if (unlikely(numbytes == 0)) {
- warn("control read: empty block received");
+ dev_warn(cs->dev,
+ "control read: empty block received\n");
goto retry;
}
if (unlikely(numbytes != ucs->rcvbuf_size)) {
- warn("control read: received %d chars, expected %d",
- numbytes, ucs->rcvbuf_size);
+ dev_warn(cs->dev,
+ "control read: received %d chars, expected %d\n",
+ numbytes, ucs->rcvbuf_size);
if (numbytes > ucs->rcvbuf_size)
numbytes = ucs->rcvbuf_size;
}
@@ -694,27 +695,32 @@ static void read_ctrl_callback(struct urb *urb, struct pt_regs *regs)
}
break;
- case -ENOENT: /* canceled */
- case -ECONNRESET: /* canceled (async) */
+ case -ENOENT: /* cancelled */
+ case -ECONNRESET: /* cancelled (async) */
case -EINPROGRESS: /* pending */
+ case -ENODEV: /* device removed */
+ case -ESHUTDOWN: /* device shut down */
/* no action necessary */
- dbg(DEBUG_USBREQ,
- "%s: %s", __func__, get_usb_statmsg(urb->status));
+ gig_dbg(DEBUG_USBREQ, "%s: %s",
+ __func__, get_usb_statmsg(urb->status));
break;
default: /* severe trouble */
- warn("control read: %s", get_usb_statmsg(urb->status));
+ dev_warn(cs->dev, "control read: %s\n",
+ get_usb_statmsg(urb->status));
retry:
if (ucs->retry_cmd_in++ < BAS_RETRY) {
- notice("control read: retry %d", ucs->retry_cmd_in);
- if (atread_submit(cs, BAS_TIMEOUT) >= 0) {
- /* resubmitted - bypass regular exit block */
- spin_unlock_irqrestore(&cs->lock, flags);
+ dev_notice(cs->dev, "control read: retry %d\n",
+ ucs->retry_cmd_in);
+ rc = atread_submit(cs, BAS_TIMEOUT);
+ if (rc >= 0 || rc == -ENODEV)
+ /* resubmitted or disconnected */
+ /* - bypass regular exit block */
return;
- }
} else {
- err("control read: giving up after %d tries",
- ucs->retry_cmd_in);
+ dev_err(cs->dev,
+ "control read: giving up after %d tries\n",
+ ucs->retry_cmd_in);
}
error_reset(cs);
}
@@ -722,9 +728,8 @@ static void read_ctrl_callback(struct urb *urb, struct pt_regs *regs)
kfree(ucs->rcvbuf);
ucs->rcvbuf = NULL;
ucs->rcvbuf_size = 0;
- spin_unlock_irqrestore(&cs->lock, flags);
if (have_data) {
- dbg(DEBUG_INTR, "%s-->BH", __func__);
+ gig_dbg(DEBUG_INTR, "%s-->BH", __func__);
gigaset_schedule_event(cs);
}
}
@@ -743,21 +748,19 @@ static void read_iso_callback(struct urb *urb, struct pt_regs *regs)
unsigned long flags;
int i, rc;
- IFNULLRET(urb);
- IFNULLRET(urb->context);
- IFNULLRET(cardstate);
-
/* status codes not worth bothering the tasklet with */
- if (unlikely(urb->status == -ENOENT || urb->status == -ECONNRESET ||
- urb->status == -EINPROGRESS)) {
- dbg(DEBUG_ISO,
- "%s: %s", __func__, get_usb_statmsg(urb->status));
+ if (unlikely(urb->status == -ENOENT ||
+ urb->status == -ECONNRESET ||
+ urb->status == -EINPROGRESS ||
+ urb->status == -ENODEV ||
+ urb->status == -ESHUTDOWN)) {
+ gig_dbg(DEBUG_ISO, "%s: %s",
+ __func__, get_usb_statmsg(urb->status));
return;
}
- bcs = (struct bc_state *) urb->context;
+ bcs = urb->context;
ubc = bcs->hw.bas;
- IFNULLRET(ubc);
spin_lock_irqsave(&ubc->isoinlock, flags);
if (likely(ubc->isoindone == NULL)) {
@@ -770,21 +773,24 @@ static void read_iso_callback(struct urb *urb, struct pt_regs *regs)
for (i = 0; i < BAS_NUMFRAMES; i++) {
ubc->isoinlost += urb->iso_frame_desc[i].actual_length;
if (unlikely(urb->iso_frame_desc[i].status != 0 &&
- urb->iso_frame_desc[i].status != -EINPROGRESS)) {
+ urb->iso_frame_desc[i].status !=
+ -EINPROGRESS))
ubc->loststatus = urb->iso_frame_desc[i].status;
- }
urb->iso_frame_desc[i].status = 0;
urb->iso_frame_desc[i].actual_length = 0;
}
if (likely(atomic_read(&ubc->running))) {
- urb->dev = bcs->cs->hw.bas->udev; /* clobbered by USB subsystem */
+ /* urb->dev is clobbered by USB subsystem */
+ urb->dev = bcs->cs->hw.bas->udev;
urb->transfer_flags = URB_ISO_ASAP;
urb->number_of_packets = BAS_NUMFRAMES;
- dbg(DEBUG_ISO, "%s: isoc read overrun/resubmit", __func__);
+ gig_dbg(DEBUG_ISO, "%s: isoc read overrun/resubmit",
+ __func__);
rc = usb_submit_urb(urb, SLAB_ATOMIC);
- if (unlikely(rc != 0)) {
- err("could not resubmit isochronous read URB: %s",
- get_usb_statmsg(rc));
+ if (unlikely(rc != 0 && rc != -ENODEV)) {
+ dev_err(bcs->cs->dev,
+ "could not resubmit isochronous read "
+ "URB: %s\n", get_usb_rcmsg(rc));
dump_urb(DEBUG_ISO, "isoc read", urb);
error_hangup(bcs);
}
@@ -806,23 +812,20 @@ static void write_iso_callback(struct urb *urb, struct pt_regs *regs)
struct bas_bc_state *ubc;
unsigned long flags;
- IFNULLRET(urb);
- IFNULLRET(urb->context);
- IFNULLRET(cardstate);
-
/* status codes not worth bothering the tasklet with */
- if (unlikely(urb->status == -ENOENT || urb->status == -ECONNRESET ||
- urb->status == -EINPROGRESS)) {
- dbg(DEBUG_ISO,
- "%s: %s", __func__, get_usb_statmsg(urb->status));
+ if (unlikely(urb->status == -ENOENT ||
+ urb->status == -ECONNRESET ||
+ urb->status == -EINPROGRESS ||
+ urb->status == -ENODEV ||
+ urb->status == -ESHUTDOWN)) {
+ gig_dbg(DEBUG_ISO, "%s: %s",
+ __func__, get_usb_statmsg(urb->status));
return;
}
/* pass URB context to tasklet */
- ucx = (struct isow_urbctx_t *) urb->context;
- IFNULLRET(ucx->bcs);
+ ucx = urb->context;
ubc = ucx->bcs->hw.bas;
- IFNULLRET(ubc);
spin_lock_irqsave(&ubc->isooutlock, flags);
ubc->isooutovfl = ubc->isooutdone;
@@ -841,15 +844,11 @@ static void write_iso_callback(struct urb *urb, struct pt_regs *regs)
*/
static int starturbs(struct bc_state *bcs)
{
+ struct bas_bc_state *ubc = bcs->hw.bas;
struct urb *urb;
- struct bas_bc_state *ubc;
int j, k;
int rc;
- IFNULLRETVAL(bcs, -EFAULT);
- ubc = bcs->hw.bas;
- IFNULLRETVAL(ubc, -EFAULT);
-
/* initialize L2 reception */
if (bcs->proto2 == ISDN_PROTO_L2_HDLC)
bcs->inputstate |= INS_flag_hunt;
@@ -859,7 +858,6 @@ static int starturbs(struct bc_state *bcs)
for (k = 0; k < BAS_INURBS; k++) {
urb = ubc->isoinurbs[k];
if (!urb) {
- err("isoinurbs[%d]==NULL", k);
rc = -EFAULT;
goto error;
}
@@ -881,11 +879,8 @@ static int starturbs(struct bc_state *bcs)
}
dump_urb(DEBUG_ISO, "Initial isoc read", urb);
- if ((rc = usb_submit_urb(urb, SLAB_ATOMIC)) != 0) {
- err("could not submit isochronous read URB %d: %s",
- k, get_usb_statmsg(rc));
+ if ((rc = usb_submit_urb(urb, SLAB_ATOMIC)) != 0)
goto error;
- }
}
/* initialize L2 transmission */
@@ -895,7 +890,6 @@ static int starturbs(struct bc_state *bcs)
for (k = 0; k < BAS_OUTURBS; ++k) {
urb = ubc->isoouturbs[k].urb;
if (!urb) {
- err("isoouturbs[%d].urb==NULL", k);
rc = -EFAULT;
goto error;
}
@@ -921,11 +915,8 @@ static int starturbs(struct bc_state *bcs)
for (k = 0; k < 2; ++k) {
dump_urb(DEBUG_ISO, "Initial isoc write", urb);
rc = usb_submit_urb(ubc->isoouturbs[k].urb, SLAB_ATOMIC);
- if (rc != 0) {
- err("could not submit isochronous write URB %d: %s",
- k, get_usb_statmsg(rc));
+ if (rc != 0)
goto error;
- }
}
dump_urb(DEBUG_ISO, "Initial isoc write (free)", urb);
ubc->isooutfree = &ubc->isoouturbs[2];
@@ -946,20 +937,20 @@ static void stopurbs(struct bas_bc_state *ubc)
{
int k, rc;
- IFNULLRET(ubc);
-
atomic_set(&ubc->running, 0);
for (k = 0; k < BAS_INURBS; ++k) {
rc = usb_unlink_urb(ubc->isoinurbs[k]);
- dbg(DEBUG_ISO, "%s: isoc input URB %d unlinked, result = %d",
- __func__, k, rc);
+ gig_dbg(DEBUG_ISO,
+ "%s: isoc input URB %d unlinked, result = %s",
+ __func__, k, get_usb_rcmsg(rc));
}
for (k = 0; k < BAS_OUTURBS; ++k) {
rc = usb_unlink_urb(ubc->isoouturbs[k].urb);
- dbg(DEBUG_ISO, "%s: isoc output URB %d unlinked, result = %d",
- __func__, k, rc);
+ gig_dbg(DEBUG_ISO,
+ "%s: isoc output URB %d unlinked, result = %s",
+ __func__, k, get_usb_rcmsg(rc));
}
}
@@ -969,7 +960,7 @@ static void stopurbs(struct bas_bc_state *ubc)
/* submit_iso_write_urb
* fill and submit the next isochronous write URB
* parameters:
- * bcs B channel state structure
+ * ucx context structure containing URB
* return value:
* number of frames submitted in URB
* 0 if URB not submitted because no data available (isooutbuf busy)
@@ -977,19 +968,13 @@ static void stopurbs(struct bas_bc_state *ubc)
*/
static int submit_iso_write_urb(struct isow_urbctx_t *ucx)
{
- struct urb *urb;
- struct bas_bc_state *ubc;
+ struct urb *urb = ucx->urb;
+ struct bas_bc_state *ubc = ucx->bcs->hw.bas;
struct usb_iso_packet_descriptor *ifd;
int corrbytes, nframe, rc;
- IFNULLRETVAL(ucx, -EFAULT);
- urb = ucx->urb;
- IFNULLRETVAL(urb, -EFAULT);
- IFNULLRETVAL(ucx->bcs, -EFAULT);
- ubc = ucx->bcs->hw.bas;
- IFNULLRETVAL(ubc, -EFAULT);
-
- urb->dev = ucx->bcs->cs->hw.bas->udev; /* clobbered by USB subsystem */
+ /* urb->dev is clobbered by USB subsystem */
+ urb->dev = ucx->bcs->cs->hw.bas->udev;
urb->transfer_flags = URB_ISO_ASAP;
urb->transfer_buffer = ubc->isooutbuf->data;
urb->transfer_buffer_length = sizeof(ubc->isooutbuf->data);
@@ -1000,7 +985,8 @@ static int submit_iso_write_urb(struct isow_urbctx_t *ucx)
/* compute frame length according to flow control */
ifd->length = BAS_NORMFRAME;
if ((corrbytes = atomic_read(&ubc->corrbytes)) != 0) {
- dbg(DEBUG_ISO, "%s: corrbytes=%d", __func__, corrbytes);
+ gig_dbg(DEBUG_ISO, "%s: corrbytes=%d",
+ __func__, corrbytes);
if (corrbytes > BAS_HIGHFRAME - BAS_NORMFRAME)
corrbytes = BAS_HIGHFRAME - BAS_NORMFRAME;
else if (corrbytes < BAS_LOWFRAME - BAS_NORMFRAME)
@@ -1008,18 +994,21 @@ static int submit_iso_write_urb(struct isow_urbctx_t *ucx)
ifd->length += corrbytes;
atomic_add(-corrbytes, &ubc->corrbytes);
}
- //dbg(DEBUG_ISO, "%s: frame %d length=%d", __func__, nframe, ifd->length);
/* retrieve block of data to send */
- ifd->offset = gigaset_isowbuf_getbytes(ubc->isooutbuf, ifd->length);
+ ifd->offset = gigaset_isowbuf_getbytes(ubc->isooutbuf,
+ ifd->length);
if (ifd->offset < 0) {
if (ifd->offset == -EBUSY) {
- dbg(DEBUG_ISO, "%s: buffer busy at frame %d",
- __func__, nframe);
- /* tasklet will be restarted from gigaset_send_skb() */
+ gig_dbg(DEBUG_ISO,
+ "%s: buffer busy at frame %d",
+ __func__, nframe);
+ /* tasklet will be restarted from
+ gigaset_send_skb() */
} else {
- err("%s: buffer error %d at frame %d",
- __func__, ifd->offset, nframe);
+ dev_err(ucx->bcs->cs->dev,
+ "%s: buffer error %d at frame %d\n",
+ __func__, ifd->offset, nframe);
return ifd->offset;
}
break;
@@ -1028,15 +1017,22 @@ static int submit_iso_write_urb(struct isow_urbctx_t *ucx)
ifd->status = 0;
ifd->actual_length = 0;
}
- if ((urb->number_of_packets = nframe) > 0) {
- if ((rc = usb_submit_urb(urb, SLAB_ATOMIC)) != 0) {
- err("could not submit isochronous write URB: %s",
- get_usb_statmsg(rc));
- dump_urb(DEBUG_ISO, "isoc write", urb);
- return rc;
- }
- ++ubc->numsub;
+ if (unlikely(nframe == 0))
+ return 0; /* no data to send */
+ urb->number_of_packets = nframe;
+
+ rc = usb_submit_urb(urb, SLAB_ATOMIC);
+ if (unlikely(rc)) {
+ if (rc == -ENODEV)
+ /* device removed - give up silently */
+ gig_dbg(DEBUG_ISO, "%s: disconnected", __func__);
+ else
+ dev_err(ucx->bcs->cs->dev,
+ "could not submit isochronous write URB: %s\n",
+ get_usb_rcmsg(rc));
+ return rc;
}
+ ++ubc->numsub;
return nframe;
}
@@ -1048,9 +1044,9 @@ static int submit_iso_write_urb(struct isow_urbctx_t *ucx)
*/
static void write_iso_tasklet(unsigned long data)
{
- struct bc_state *bcs;
- struct bas_bc_state *ubc;
- struct cardstate *cs;
+ struct bc_state *bcs = (struct bc_state *) data;
+ struct bas_bc_state *ubc = bcs->hw.bas;
+ struct cardstate *cs = bcs->cs;
struct isow_urbctx_t *done, *next, *ovfl;
struct urb *urb;
struct usb_iso_packet_descriptor *ifd;
@@ -1059,23 +1055,12 @@ static void write_iso_tasklet(unsigned long data)
int i;
struct sk_buff *skb;
int len;
-
- bcs = (struct bc_state *) data;
- IFNULLRET(bcs);
- ubc = bcs->hw.bas;
- IFNULLRET(ubc);
- cs = bcs->cs;
- IFNULLRET(cs);
+ int rc;
/* loop while completed URBs arrive in time */
for (;;) {
- if (unlikely(!atomic_read(&cs->connected))) {
- warn("%s: disconnected", __func__);
- return;
- }
-
if (unlikely(!(atomic_read(&ubc->running)))) {
- dbg(DEBUG_ISO, "%s: not running", __func__);
+ gig_dbg(DEBUG_ISO, "%s: not running", __func__);
return;
}
@@ -1087,7 +1072,7 @@ static void write_iso_tasklet(unsigned long data)
ubc->isooutovfl = NULL;
spin_unlock_irqrestore(&ubc->isooutlock, flags);
if (ovfl) {
- err("isochronous write buffer underrun - buy a faster machine :-)");
+ dev_err(cs->dev, "isochronous write buffer underrun\n");
error_hangup(bcs);
break;
}
@@ -1100,7 +1085,8 @@ static void write_iso_tasklet(unsigned long data)
ubc->isooutfree = NULL;
spin_unlock_irqrestore(&ubc->isooutlock, flags);
if (next) {
- if (submit_iso_write_urb(next) <= 0) {
+ rc = submit_iso_write_urb(next);
+ if (unlikely(rc <= 0 && rc != -ENODEV)) {
/* could not submit URB, put it back */
spin_lock_irqsave(&ubc->isooutlock, flags);
if (ubc->isooutfree == NULL) {
@@ -1110,7 +1096,8 @@ static void write_iso_tasklet(unsigned long data)
spin_unlock_irqrestore(&ubc->isooutlock, flags);
if (next) {
/* couldn't put it back */
- err("losing isochronous write URB");
+ dev_err(cs->dev,
+ "losing isochronous write URB\n");
error_hangup(bcs);
}
}
@@ -1119,26 +1106,30 @@ static void write_iso_tasklet(unsigned long data)
/* process completed URB */
urb = done->urb;
switch (urb->status) {
+ case -EXDEV: /* partial completion */
+ gig_dbg(DEBUG_ISO, "%s: URB partially completed",
+ __func__);
+ /* fall through - what's the difference anyway? */
case 0: /* normal completion */
- break;
- case -EXDEV: /* inspect individual frames */
- /* assumptions (for lack of documentation):
- * - actual_length bytes of the frame in error are successfully sent
+ /* inspect individual frames
+ * assumptions (for lack of documentation):
+ * - actual_length bytes of first frame in error are
+ * successfully sent
* - all following frames are not sent at all
*/
- dbg(DEBUG_ISO, "%s: URB partially completed", __func__);
- offset = done->limit; /* just in case */
+ offset = done->limit; /* default (no error) */
for (i = 0; i < BAS_NUMFRAMES; i++) {
ifd = &urb->iso_frame_desc[i];
if (ifd->status ||
ifd->actual_length != ifd->length) {
- warn("isochronous write: frame %d: %s, "
- "only %d of %d bytes sent",
+ dev_warn(cs->dev,
+ "isochronous write: frame %d: %s, "
+ "only %d of %d bytes sent\n",
i, get_usb_statmsg(ifd->status),
ifd->actual_length, ifd->length);
offset = (ifd->offset +
- ifd->actual_length)
- % BAS_OUTBUFSIZE;
+ ifd->actual_length)
+ % BAS_OUTBUFSIZE;
break;
}
}
@@ -1148,25 +1139,26 @@ static void write_iso_tasklet(unsigned long data)
ifd = &urb->iso_frame_desc[i];
if (ifd->status != -EINPROGRESS
|| ifd->actual_length != 0) {
- warn("isochronous write: frame %d: %s, "
- "%d of %d bytes sent",
+ dev_warn(cs->dev,
+ "isochronous write: frame %d: %s, "
+ "%d of %d bytes sent\n",
i, get_usb_statmsg(ifd->status),
ifd->actual_length, ifd->length);
offset = (ifd->offset +
- ifd->actual_length)
- % BAS_OUTBUFSIZE;
+ ifd->actual_length)
+ % BAS_OUTBUFSIZE;
break;
}
}
#endif
break;
- case -EPIPE: //FIXME is this the code for "underrun"?
- err("isochronous write stalled");
+ case -EPIPE: /* stall - probably underrun */
+ dev_err(cs->dev, "isochronous write stalled\n");
error_hangup(bcs);
break;
default: /* severe trouble */
- warn("isochronous write: %s",
- get_usb_statmsg(urb->status));
+ dev_warn(cs->dev, "isochronous write: %s\n",
+ get_usb_statmsg(urb->status));
}
/* mark the write buffer area covered by this URB as free */
@@ -1180,7 +1172,8 @@ static void write_iso_tasklet(unsigned long data)
spin_unlock_irqrestore(&ubc->isooutlock, flags);
if (next) {
/* only one URB still active - resubmit one */
- if (submit_iso_write_urb(next) <= 0) {
+ rc = submit_iso_write_urb(next);
+ if (unlikely(rc <= 0 && rc != -ENODEV)) {
/* couldn't submit */
error_hangup(bcs);
}
@@ -1194,8 +1187,8 @@ static void write_iso_tasklet(unsigned long data)
if (gigaset_isoc_buildframe(bcs, skb->data, len) == -EAGAIN) {
/* insufficient buffer space, push back onto queue */
skb_queue_head(&bcs->squeue, skb);
- dbg(DEBUG_ISO, "%s: skb requeued, qlen=%d",
- __func__, skb_queue_len(&bcs->squeue));
+ gig_dbg(DEBUG_ISO, "%s: skb requeued, qlen=%d",
+ __func__, skb_queue_len(&bcs->squeue));
break;
}
skb_pull(skb, len);
@@ -1215,28 +1208,16 @@ static void write_iso_tasklet(unsigned long data)
*/
static void read_iso_tasklet(unsigned long data)
{
- struct bc_state *bcs;
- struct bas_bc_state *ubc;
- struct cardstate *cs;
+ struct bc_state *bcs = (struct bc_state *) data;
+ struct bas_bc_state *ubc = bcs->hw.bas;
+ struct cardstate *cs = bcs->cs;
struct urb *urb;
char *rcvbuf;
unsigned long flags;
int totleft, numbytes, offset, frame, rc;
- bcs = (struct bc_state *) data;
- IFNULLRET(bcs);
- ubc = bcs->hw.bas;
- IFNULLRET(ubc);
- cs = bcs->cs;
- IFNULLRET(cs);
-
/* loop while more completed URBs arrive in the meantime */
for (;;) {
- if (!atomic_read(&cs->connected)) {
- warn("%s: disconnected", __func__);
- return;
- }
-
/* retrieve URB */
spin_lock_irqsave(&ubc->isoinlock, flags);
if (!(urb = ubc->isoindone)) {
@@ -1245,38 +1226,44 @@ static void read_iso_tasklet(unsigned long data)
}
ubc->isoindone = NULL;
if (unlikely(ubc->loststatus != -EINPROGRESS)) {
- warn("isochronous read overrun, dropped URB with status: %s, %d bytes lost",
- get_usb_statmsg(ubc->loststatus), ubc->isoinlost);
+ dev_warn(cs->dev,
+ "isochronous read overrun, "
+ "dropped URB with status: %s, %d bytes lost\n",
+ get_usb_statmsg(ubc->loststatus),
+ ubc->isoinlost);
ubc->loststatus = -EINPROGRESS;
}
spin_unlock_irqrestore(&ubc->isoinlock, flags);
if (unlikely(!(atomic_read(&ubc->running)))) {
- dbg(DEBUG_ISO, "%s: channel not running, dropped URB with status: %s",
- __func__, get_usb_statmsg(urb->status));
+ gig_dbg(DEBUG_ISO,
+ "%s: channel not running, "
+ "dropped URB with status: %s",
+ __func__, get_usb_statmsg(urb->status));
return;
}
switch (urb->status) {
case 0: /* normal completion */
break;
- case -EXDEV: /* inspect individual frames (we do that anyway) */
- dbg(DEBUG_ISO, "%s: URB partially completed", __func__);
+ case -EXDEV: /* inspect individual frames
+ (we do that anyway) */
+ gig_dbg(DEBUG_ISO, "%s: URB partially completed",
+ __func__);
break;
case -ENOENT:
case -ECONNRESET:
- dbg(DEBUG_ISO, "%s: URB canceled", __func__);
- continue; /* -> skip */
- case -EINPROGRESS: /* huh? */
- dbg(DEBUG_ISO, "%s: URB still pending", __func__);
+ case -EINPROGRESS:
+ gig_dbg(DEBUG_ISO, "%s: %s",
+ __func__, get_usb_statmsg(urb->status));
continue; /* -> skip */
case -EPIPE:
- err("isochronous read stalled");
+ dev_err(cs->dev, "isochronous read stalled\n");
error_hangup(bcs);
continue; /* -> skip */
default: /* severe trouble */
- warn("isochronous read: %s",
- get_usb_statmsg(urb->status));
+ dev_warn(cs->dev, "isochronous read: %s\n",
+ get_usb_statmsg(urb->status));
goto error;
}
@@ -1284,33 +1271,44 @@ static void read_iso_tasklet(unsigned long data)
totleft = urb->actual_length;
for (frame = 0; totleft > 0 && frame < BAS_NUMFRAMES; frame++) {
if (unlikely(urb->iso_frame_desc[frame].status)) {
- warn("isochronous read: frame %d: %s",
- frame, get_usb_statmsg(urb->iso_frame_desc[frame].status));
+ dev_warn(cs->dev,
+ "isochronous read: frame %d: %s\n",
+ frame,
+ get_usb_statmsg(
+ urb->iso_frame_desc[frame].status));
break;
}
numbytes = urb->iso_frame_desc[frame].actual_length;
if (unlikely(numbytes > BAS_MAXFRAME)) {
- warn("isochronous read: frame %d: numbytes (%d) > BAS_MAXFRAME",
- frame, numbytes);
+ dev_warn(cs->dev,
+ "isochronous read: frame %d: "
+ "numbytes (%d) > BAS_MAXFRAME\n",
+ frame, numbytes);
break;
}
if (unlikely(numbytes > totleft)) {
- warn("isochronous read: frame %d: numbytes (%d) > totleft (%d)",
- frame, numbytes, totleft);
+ dev_warn(cs->dev,
+ "isochronous read: frame %d: "
+ "numbytes (%d) > totleft (%d)\n",
+ frame, numbytes, totleft);
break;
}
offset = urb->iso_frame_desc[frame].offset;
if (unlikely(offset + numbytes > BAS_INBUFSIZE)) {
- warn("isochronous read: frame %d: offset (%d) + numbytes (%d) > BAS_INBUFSIZE",
- frame, offset, numbytes);
+ dev_warn(cs->dev,
+ "isochronous read: frame %d: "
+ "offset (%d) + numbytes (%d) "
+ "> BAS_INBUFSIZE\n",
+ frame, offset, numbytes);
break;
}
gigaset_isoc_receive(rcvbuf + offset, numbytes, bcs);
totleft -= numbytes;
}
if (unlikely(totleft > 0))
- warn("isochronous read: %d data bytes missing",
- totleft);
+ dev_warn(cs->dev,
+ "isochronous read: %d data bytes missing\n",
+ totleft);
error:
/* URB processed, resubmit */
@@ -1318,12 +1316,15 @@ static void read_iso_tasklet(unsigned long data)
urb->iso_frame_desc[frame].status = 0;
urb->iso_frame_desc[frame].actual_length = 0;
}
- urb->dev = bcs->cs->hw.bas->udev; /* clobbered by USB subsystem */
+ /* urb->dev is clobbered by USB subsystem */
+ urb->dev = bcs->cs->hw.bas->udev;
urb->transfer_flags = URB_ISO_ASAP;
urb->number_of_packets = BAS_NUMFRAMES;
- if ((rc = usb_submit_urb(urb, SLAB_ATOMIC)) != 0) {
- err("could not resubmit isochronous read URB: %s",
- get_usb_statmsg(rc));
+ rc = usb_submit_urb(urb, SLAB_ATOMIC);
+ if (unlikely(rc != 0 && rc != -ENODEV)) {
+ dev_err(cs->dev,
+ "could not resubmit isochronous read URB: %s\n",
+ get_usb_rcmsg(rc));
dump_urb(DEBUG_ISO, "resubmit iso read", urb);
error_hangup(bcs);
}
@@ -1341,15 +1342,10 @@ static void read_iso_tasklet(unsigned long data)
static void req_timeout(unsigned long data)
{
struct bc_state *bcs = (struct bc_state *) data;
- struct bas_cardstate *ucs;
+ struct bas_cardstate *ucs = bcs->cs->hw.bas;
int pending;
unsigned long flags;
- IFNULLRET(bcs);
- IFNULLRET(bcs->cs);
- ucs = bcs->cs->hw.bas;
- IFNULLRET(ucs);
-
check_pending(ucs);
spin_lock_irqsave(&ucs->lock, flags);
@@ -1359,33 +1355,34 @@ static void req_timeout(unsigned long data)
switch (pending) {
case 0: /* no pending request */
- dbg(DEBUG_USBREQ, "%s: no request pending", __func__);
+ gig_dbg(DEBUG_USBREQ, "%s: no request pending", __func__);
break;
case HD_OPEN_ATCHANNEL:
- err("timeout opening AT channel");
+ dev_err(bcs->cs->dev, "timeout opening AT channel\n");
error_reset(bcs->cs);
break;
case HD_OPEN_B2CHANNEL:
case HD_OPEN_B1CHANNEL:
- err("timeout opening channel %d", bcs->channel + 1);
+ dev_err(bcs->cs->dev, "timeout opening channel %d\n",
+ bcs->channel + 1);
error_hangup(bcs);
break;
case HD_CLOSE_ATCHANNEL:
- err("timeout closing AT channel");
- //wake_up_interruptible(cs->initwait);
- //FIXME need own wait queue?
+ dev_err(bcs->cs->dev, "timeout closing AT channel\n");
break;
case HD_CLOSE_B2CHANNEL:
case HD_CLOSE_B1CHANNEL:
- err("timeout closing channel %d", bcs->channel + 1);
+ dev_err(bcs->cs->dev, "timeout closing channel %d\n",
+ bcs->channel + 1);
break;
default:
- warn("request 0x%02x timed out, clearing", pending);
+ dev_warn(bcs->cs->dev, "request 0x%02x timed out, clearing\n",
+ pending);
}
}
@@ -1398,18 +1395,14 @@ static void req_timeout(unsigned long data)
*/
static void write_ctrl_callback(struct urb *urb, struct pt_regs *regs)
{
- struct bas_cardstate *ucs;
+ struct bas_cardstate *ucs = urb->context;
unsigned long flags;
- IFNULLRET(urb);
- IFNULLRET(urb->context);
- IFNULLRET(cardstate);
-
- ucs = (struct bas_cardstate *) urb->context;
spin_lock_irqsave(&ucs->lock, flags);
if (urb->status && ucs->pending) {
- err("control request 0x%02x failed: %s",
- ucs->pending, get_usb_statmsg(urb->status));
+ dev_err(&ucs->interface->dev,
+ "control request 0x%02x failed: %s\n",
+ ucs->pending, get_usb_statmsg(urb->status));
del_timer(&ucs->timer_ctrl);
ucs->pending = 0;
}
@@ -1432,34 +1425,24 @@ static void write_ctrl_callback(struct urb *urb, struct pt_regs *regs)
* timeout timeout in seconds (0: no timeout)
* return value:
* 0 on success
- * -EINVAL if a NULL pointer is encountered somewhere
* -EBUSY if another request is pending
* any URB submission error code
*/
static int req_submit(struct bc_state *bcs, int req, int val, int timeout)
{
- struct bas_cardstate *ucs;
+ struct bas_cardstate *ucs = bcs->cs->hw.bas;
int ret;
unsigned long flags;
- IFNULLRETVAL(bcs, -EINVAL);
- IFNULLRETVAL(bcs->cs, -EINVAL);
- ucs = bcs->cs->hw.bas;
- IFNULLRETVAL(ucs, -EINVAL);
- IFNULLRETVAL(ucs->urb_ctrl, -EINVAL);
-
- dbg(DEBUG_USBREQ, "-------> 0x%02x (%d)", req, val);
+ gig_dbg(DEBUG_USBREQ, "-------> 0x%02x (%d)", req, val);
spin_lock_irqsave(&ucs->lock, flags);
if (ucs->pending) {
spin_unlock_irqrestore(&ucs->lock, flags);
- err("submission of request 0x%02x failed: request 0x%02x still pending",
- req, ucs->pending);
- return -EBUSY;
- }
- if (ucs->urb_ctrl->status == -EINPROGRESS) {
- spin_unlock_irqrestore(&ucs->lock, flags);
- err("could not submit request 0x%02x: URB busy", req);
+ dev_err(bcs->cs->dev,
+ "submission of request 0x%02x failed: "
+ "request 0x%02x still pending\n",
+ req, ucs->pending);
return -EBUSY;
}
@@ -1469,19 +1452,19 @@ static int req_submit(struct bc_state *bcs, int req, int val, int timeout)
ucs->dr_ctrl.wIndex = 0;
ucs->dr_ctrl.wLength = 0;
usb_fill_control_urb(ucs->urb_ctrl, ucs->udev,
- usb_sndctrlpipe(ucs->udev, 0),
- (unsigned char*) &ucs->dr_ctrl, NULL, 0,
- write_ctrl_callback, ucs);
+ usb_sndctrlpipe(ucs->udev, 0),
+ (unsigned char*) &ucs->dr_ctrl, NULL, 0,
+ write_ctrl_callback, ucs);
if ((ret = usb_submit_urb(ucs->urb_ctrl, SLAB_ATOMIC)) != 0) {
- err("could not submit request 0x%02x: %s",
- req, get_usb_statmsg(ret));
+ dev_err(bcs->cs->dev, "could not submit request 0x%02x: %s\n",
+ req, get_usb_statmsg(ret));
spin_unlock_irqrestore(&ucs->lock, flags);
return ret;
}
ucs->pending = req;
if (timeout > 0) {
- dbg(DEBUG_USBREQ, "setting timeout of %d/10 secs", timeout);
+ gig_dbg(DEBUG_USBREQ, "setting timeout of %d/10 secs", timeout);
ucs->timer_ctrl.expires = jiffies + timeout * HZ / 10;
ucs->timer_ctrl.data = (unsigned long) bcs;
ucs->timer_ctrl.function = req_timeout;
@@ -1503,23 +1486,36 @@ static int req_submit(struct bc_state *bcs, int req, int val, int timeout)
static int gigaset_init_bchannel(struct bc_state *bcs)
{
int req, ret;
+ unsigned long flags;
- IFNULLRETVAL(bcs, -EINVAL);
+ spin_lock_irqsave(&bcs->cs->lock, flags);
+ if (unlikely(!bcs->cs->connected)) {
+ gig_dbg(DEBUG_USBREQ, "%s: not connected", __func__);
+ spin_unlock_irqrestore(&bcs->cs->lock, flags);
+ return -ENODEV;
+ }
if ((ret = starturbs(bcs)) < 0) {
- err("could not start isochronous I/O for channel %d",
- bcs->channel + 1);
- error_hangup(bcs);
+ dev_err(bcs->cs->dev,
+ "could not start isochronous I/O for channel B%d: %s\n",
+ bcs->channel + 1,
+ ret == -EFAULT ? "null URB" : get_usb_rcmsg(ret));
+ if (ret != -ENODEV)
+ error_hangup(bcs);
+ spin_unlock_irqrestore(&bcs->cs->lock, flags);
return ret;
}
req = bcs->channel ? HD_OPEN_B2CHANNEL : HD_OPEN_B1CHANNEL;
if ((ret = req_submit(bcs, req, 0, BAS_TIMEOUT)) < 0) {
- err("could not open channel %d: %s",
- bcs->channel + 1, get_usb_statmsg(ret));
+ dev_err(bcs->cs->dev, "could not open channel B%d\n",
+ bcs->channel + 1);
stopurbs(bcs->hw.bas);
- error_hangup(bcs);
+ if (ret != -ENODEV)
+ error_hangup(bcs);
}
+
+ spin_unlock_irqrestore(&bcs->cs->lock, flags);
return ret;
}
@@ -1536,20 +1532,30 @@ static int gigaset_init_bchannel(struct bc_state *bcs)
static int gigaset_close_bchannel(struct bc_state *bcs)
{
int req, ret;
+ unsigned long flags;
- IFNULLRETVAL(bcs, -EINVAL);
+ spin_lock_irqsave(&bcs->cs->lock, flags);
+ if (unlikely(!bcs->cs->connected)) {
+ spin_unlock_irqrestore(&bcs->cs->lock, flags);
+ gig_dbg(DEBUG_USBREQ, "%s: not connected", __func__);
+ return -ENODEV;
+ }
if (!(atomic_read(&bcs->cs->hw.bas->basstate) &
(bcs->channel ? BS_B2OPEN : BS_B1OPEN))) {
/* channel not running: just signal common.c */
+ spin_unlock_irqrestore(&bcs->cs->lock, flags);
gigaset_bchannel_down(bcs);
return 0;
}
+ /* channel running: tell device to close it */
req = bcs->channel ? HD_CLOSE_B2CHANNEL : HD_CLOSE_B1CHANNEL;
if ((ret = req_submit(bcs, req, 0, BAS_TIMEOUT)) < 0)
- err("could not submit HD_CLOSE_BxCHANNEL request: %s",
- get_usb_statmsg(ret));
+ dev_err(bcs->cs->dev, "closing channel B%d failed\n",
+ bcs->channel + 1);
+
+ spin_unlock_irqrestore(&bcs->cs->lock, flags);
return ret;
}
@@ -1564,17 +1570,13 @@ static int gigaset_close_bchannel(struct bc_state *bcs)
*/
static void complete_cb(struct cardstate *cs)
{
- struct cmdbuf_t *cb;
-
- IFNULLRET(cs);
- cb = cs->cmdbuf;
- IFNULLRET(cb);
+ struct cmdbuf_t *cb = cs->cmdbuf;
/* unqueue completed buffer */
cs->cmdbytes -= cs->curlen;
- dbg(DEBUG_TRANSCMD | DEBUG_LOCKCMD,
- "write_command: sent %u bytes, %u left",
- cs->curlen, cs->cmdbytes);
+ gig_dbg(DEBUG_TRANSCMD|DEBUG_LOCKCMD,
+ "write_command: sent %u bytes, %u left",
+ cs->curlen, cs->cmdbytes);
if ((cs->cmdbuf = cb->next) != NULL) {
cs->cmdbuf->prev = NULL;
cs->curlen = cs->cmdbuf->len;
@@ -1589,8 +1591,6 @@ static void complete_cb(struct cardstate *cs)
kfree(cb);
}
-static int atwrite_submit(struct cardstate *cs, unsigned char *buf, int len);
-
/* write_command_callback
* USB completion handler for AT command transmission
* called by the USB subsystem in interrupt context
@@ -1600,40 +1600,43 @@ static int atwrite_submit(struct cardstate *cs, unsigned char *buf, int len);
*/
static void write_command_callback(struct urb *urb, struct pt_regs *regs)
{
- struct cardstate *cs;
+ struct cardstate *cs = urb->context;
+ struct bas_cardstate *ucs = cs->hw.bas;
unsigned long flags;
- struct bas_cardstate *ucs;
- IFNULLRET(urb);
- cs = (struct cardstate *) urb->context;
- IFNULLRET(cs);
- ucs = cs->hw.bas;
- IFNULLRET(ucs);
+ update_basstate(ucs, 0, BS_ATWRPEND);
/* check status */
switch (urb->status) {
case 0: /* normal completion */
break;
- case -ENOENT: /* canceled */
- case -ECONNRESET: /* canceled (async) */
+ case -ENOENT: /* cancelled */
+ case -ECONNRESET: /* cancelled (async) */
case -EINPROGRESS: /* pending */
+ case -ENODEV: /* device removed */
+ case -ESHUTDOWN: /* device shut down */
/* ignore silently */
- dbg(DEBUG_USBREQ,
- "%s: %s", __func__, get_usb_statmsg(urb->status));
+ gig_dbg(DEBUG_USBREQ, "%s: %s",
+ __func__, get_usb_statmsg(urb->status));
return;
default: /* any failure */
if (++ucs->retry_cmd_out > BAS_RETRY) {
- warn("command write: %s, giving up after %d retries",
- get_usb_statmsg(urb->status), ucs->retry_cmd_out);
+ dev_warn(cs->dev,
+ "command write: %s, "
+ "giving up after %d retries\n",
+ get_usb_statmsg(urb->status),
+ ucs->retry_cmd_out);
break;
}
if (cs->cmdbuf == NULL) {
- warn("command write: %s, cannot retry - cmdbuf gone",
- get_usb_statmsg(urb->status));
+ dev_warn(cs->dev,
+ "command write: %s, "
+ "cannot retry - cmdbuf gone\n",
+ get_usb_statmsg(urb->status));
break;
}
- notice("command write: %s, retry %d",
- get_usb_statmsg(urb->status), ucs->retry_cmd_out);
+ dev_notice(cs->dev, "command write: %s, retry %d\n",
+ get_usb_statmsg(urb->status), ucs->retry_cmd_out);
if (atwrite_submit(cs, cs->cmdbuf->buf, cs->cmdbuf->len) >= 0)
/* resubmitted - bypass regular exit block */
return;
@@ -1655,13 +1658,9 @@ static void write_command_callback(struct urb *urb, struct pt_regs *regs)
static void atrdy_timeout(unsigned long data)
{
struct cardstate *cs = (struct cardstate *) data;
- struct bas_cardstate *ucs;
-
- IFNULLRET(cs);
- ucs = cs->hw.bas;
- IFNULLRET(ucs);
+ struct bas_cardstate *ucs = cs->hw.bas;
- warn("timeout waiting for HD_READY_SEND_ATDATA");
+ dev_warn(cs->dev, "timeout waiting for HD_READY_SEND_ATDATA\n");
/* fake the missing signal - what else can I do? */
update_basstate(ucs, BS_ATREADY, BS_ATTIMER);
@@ -1676,24 +1675,19 @@ static void atrdy_timeout(unsigned long data)
* len length of command to send
* return value:
* 0 on success
- * -EFAULT if a NULL pointer is encountered somewhere
* -EBUSY if another request is pending
* any URB submission error code
*/
static int atwrite_submit(struct cardstate *cs, unsigned char *buf, int len)
{
- struct bas_cardstate *ucs;
- int ret;
-
- IFNULLRETVAL(cs, -EFAULT);
- ucs = cs->hw.bas;
- IFNULLRETVAL(ucs, -EFAULT);
- IFNULLRETVAL(ucs->urb_cmd_out, -EFAULT);
+ struct bas_cardstate *ucs = cs->hw.bas;
+ int rc;
- dbg(DEBUG_USBREQ, "-------> HD_WRITE_ATMESSAGE (%d)", len);
+ gig_dbg(DEBUG_USBREQ, "-------> HD_WRITE_ATMESSAGE (%d)", len);
- if (ucs->urb_cmd_out->status == -EINPROGRESS) {
- err("could not submit HD_WRITE_ATMESSAGE: URB busy");
+ if (update_basstate(ucs, BS_ATWRPEND, 0) & BS_ATWRPEND) {
+ dev_err(cs->dev,
+ "could not submit HD_WRITE_ATMESSAGE: URB busy\n");
return -EBUSY;
}
@@ -1706,25 +1700,22 @@ static int atwrite_submit(struct cardstate *cs, unsigned char *buf, int len)
usb_sndctrlpipe(ucs->udev, 0),
(unsigned char*) &ucs->dr_cmd_out, buf, len,
write_command_callback, cs);
-
- if ((ret = usb_submit_urb(ucs->urb_cmd_out, SLAB_ATOMIC)) != 0) {
- err("could not submit HD_WRITE_ATMESSAGE: %s",
- get_usb_statmsg(ret));
- return ret;
+ rc = usb_submit_urb(ucs->urb_cmd_out, SLAB_ATOMIC);
+ if (unlikely(rc)) {
+ update_basstate(ucs, 0, BS_ATWRPEND);
+ dev_err(cs->dev, "could not submit HD_WRITE_ATMESSAGE: %s\n",
+ get_usb_rcmsg(rc));
+ return rc;
}
- /* submitted successfully */
- update_basstate(ucs, 0, BS_ATREADY);
-
- /* start timeout if necessary */
- if (!(atomic_read(&ucs->basstate) & BS_ATTIMER)) {
- dbg(DEBUG_OUTPUT,
- "setting ATREADY timeout of %d/10 secs", ATRDY_TIMEOUT);
+ /* submitted successfully, start timeout if necessary */
+ if (!(update_basstate(ucs, BS_ATTIMER, BS_ATREADY) & BS_ATTIMER)) {
+ gig_dbg(DEBUG_OUTPUT, "setting ATREADY timeout of %d/10 secs",
+ ATRDY_TIMEOUT);
ucs->timer_atrdy.expires = jiffies + ATRDY_TIMEOUT * HZ / 10;
ucs->timer_atrdy.data = (unsigned long) cs;
ucs->timer_atrdy.function = atrdy_timeout;
add_timer(&ucs->timer_atrdy);
- update_basstate(ucs, BS_ATTIMER, 0);
}
return 0;
}
@@ -1740,21 +1731,16 @@ static int atwrite_submit(struct cardstate *cs, unsigned char *buf, int len)
static int start_cbsend(struct cardstate *cs)
{
struct cmdbuf_t *cb;
- struct bas_cardstate *ucs;
+ struct bas_cardstate *ucs = cs->hw.bas;
unsigned long flags;
int rc;
int retval = 0;
- IFNULLRETVAL(cs, -EFAULT);
- ucs = cs->hw.bas;
- IFNULLRETVAL(ucs, -EFAULT);
-
/* check if AT channel is open */
if (!(atomic_read(&ucs->basstate) & BS_ATOPEN)) {
- dbg(DEBUG_TRANSCMD | DEBUG_LOCKCMD, "AT channel not open");
+ gig_dbg(DEBUG_TRANSCMD|DEBUG_LOCKCMD, "AT channel not open");
rc = req_submit(cs->bcs, HD_OPEN_ATCHANNEL, 0, BAS_TIMEOUT);
if (rc < 0) {
- err("could not open AT channel");
/* flush command queue */
spin_lock_irqsave(&cs->cmdlock, flags);
while (cs->cmdbuf != NULL)
@@ -1792,27 +1778,23 @@ static int start_cbsend(struct cardstate *cs)
* cs controller state structure
* buf command string to send
* len number of bytes to send (max. IF_WRITEBUF)
- * wake_tasklet tasklet to run when transmission is completed (NULL if none)
+ * wake_tasklet tasklet to run when transmission is completed
+ * (NULL if none)
* return value:
* number of bytes queued on success
* error code < 0 on error
*/
static int gigaset_write_cmd(struct cardstate *cs,
- const unsigned char *buf, int len,
- struct tasklet_struct *wake_tasklet)
+ const unsigned char *buf, int len,
+ struct tasklet_struct *wake_tasklet)
{
struct cmdbuf_t *cb;
unsigned long flags;
int status;
gigaset_dbg_buffer(atomic_read(&cs->mstate) != MS_LOCKED ?
- DEBUG_TRANSCMD : DEBUG_LOCKCMD,
- "CMD Transmit", len, buf, 0);
-
- if (!atomic_read(&cs->connected)) {
- err("%s: not connected", __func__);
- return -ENODEV;
- }
+ DEBUG_TRANSCMD : DEBUG_LOCKCMD,
+ "CMD Transmit", len, buf);
if (len <= 0)
return 0; /* nothing to do */
@@ -1820,7 +1802,7 @@ static int gigaset_write_cmd(struct cardstate *cs,
if (len > IF_WRITEBUF)
len = IF_WRITEBUF;
if (!(cb = kmalloc(sizeof(struct cmdbuf_t) + len, GFP_ATOMIC))) {
- err("%s: out of memory", __func__);
+ dev_err(cs->dev, "%s: out of memory\n", __func__);
return -ENOMEM;
}
@@ -1842,14 +1824,21 @@ static int gigaset_write_cmd(struct cardstate *cs,
cs->lastcmdbuf = cb;
spin_unlock_irqrestore(&cs->cmdlock, flags);
+ spin_lock_irqsave(&cs->lock, flags);
+ if (unlikely(!cs->connected)) {
+ spin_unlock_irqrestore(&cs->lock, flags);
+ gig_dbg(DEBUG_USBREQ, "%s: not connected", __func__);
+ return -ENODEV;
+ }
status = start_cbsend(cs);
-
+ spin_unlock_irqrestore(&cs->lock, flags);
return status < 0 ? status : len;
}
/* gigaset_write_room
* tty_driver.write_room interface routine
- * return number of characters the driver will accept to be written via gigaset_write_cmd
+ * return number of characters the driver will accept to be written via
+ * gigaset_write_cmd
* parameter:
* controller state structure
* return value:
@@ -1904,12 +1893,32 @@ static int gigaset_brkchars(struct cardstate *cs, const unsigned char buf[6])
*/
static int gigaset_freebcshw(struct bc_state *bcs)
{
- if (!bcs->hw.bas)
+ struct bas_bc_state *ubc = bcs->hw.bas;
+ int i;
+
+ if (!ubc)
return 0;
- if (bcs->hw.bas->isooutbuf)
- kfree(bcs->hw.bas->isooutbuf);
- kfree(bcs->hw.bas);
+ /* kill URBs and tasklets before freeing - better safe than sorry */
+ atomic_set(&ubc->running, 0);
+ for (i = 0; i < BAS_OUTURBS; ++i)
+ if (ubc->isoouturbs[i].urb) {
+ gig_dbg(DEBUG_INIT, "%s: killing iso out URB %d",
+ __func__, i);
+ usb_kill_urb(ubc->isoouturbs[i].urb);
+ usb_free_urb(ubc->isoouturbs[i].urb);
+ }
+ for (i = 0; i < BAS_INURBS; ++i)
+ if (ubc->isoinurbs[i]) {
+ gig_dbg(DEBUG_INIT, "%s: killing iso in URB %d",
+ __func__, i);
+ usb_kill_urb(ubc->isoinurbs[i]);
+ usb_free_urb(ubc->isoinurbs[i]);
+ }
+ tasklet_kill(&ubc->sent_tasklet);
+ tasklet_kill(&ubc->rcvd_tasklet);
+ kfree(ubc->isooutbuf);
+ kfree(ubc);
bcs->hw.bas = NULL;
return 1;
}
@@ -1947,7 +1956,7 @@ static int gigaset_initbcshw(struct bc_state *bcs)
return 0;
}
tasklet_init(&ubc->sent_tasklet,
- &write_iso_tasklet, (unsigned long) bcs);
+ &write_iso_tasklet, (unsigned long) bcs);
spin_lock_init(&ubc->isoinlock);
for (i = 0; i < BAS_INURBS; ++i)
@@ -1968,7 +1977,7 @@ static int gigaset_initbcshw(struct bc_state *bcs)
ubc->shared0s = 0;
ubc->stolen0s = 0;
tasklet_init(&ubc->rcvd_tasklet,
- &read_iso_tasklet, (unsigned long) bcs);
+ &read_iso_tasklet, (unsigned long) bcs);
return 1;
}
@@ -1986,13 +1995,9 @@ static void gigaset_reinitbcshw(struct bc_state *bcs)
static void gigaset_freecshw(struct cardstate *cs)
{
- struct bas_cardstate *ucs = cs->hw.bas;
-
- del_timer(&ucs->timer_ctrl);
- del_timer(&ucs->timer_atrdy);
- del_timer(&ucs->timer_cmd_in);
-
+ /* timers, URBs and rcvbuf are disposed of in disconnect */
kfree(cs->hw.bas);
+ cs->hw.bas = NULL;
}
static int gigaset_initcshw(struct cardstate *cs)
@@ -2027,57 +2032,56 @@ static int gigaset_initcshw(struct cardstate *cs)
*/
static void freeurbs(struct cardstate *cs)
{
- struct bas_cardstate *ucs;
+ struct bas_cardstate *ucs = cs->hw.bas;
struct bas_bc_state *ubc;
int i, j;
- IFNULLRET(cs);
- ucs = cs->hw.bas;
- IFNULLRET(ucs);
-
for (j = 0; j < 2; ++j) {
ubc = cs->bcs[j].hw.bas;
- IFNULLCONT(ubc);
for (i = 0; i < BAS_OUTURBS; ++i)
if (ubc->isoouturbs[i].urb) {
usb_kill_urb(ubc->isoouturbs[i].urb);
- dbg(DEBUG_INIT,
- "%s: isoc output URB %d/%d unlinked",
- __func__, j, i);
+ gig_dbg(DEBUG_INIT,
+ "%s: isoc output URB %d/%d unlinked",
+ __func__, j, i);
usb_free_urb(ubc->isoouturbs[i].urb);
ubc->isoouturbs[i].urb = NULL;
}
for (i = 0; i < BAS_INURBS; ++i)
if (ubc->isoinurbs[i]) {
usb_kill_urb(ubc->isoinurbs[i]);
- dbg(DEBUG_INIT,
- "%s: isoc input URB %d/%d unlinked",
- __func__, j, i);
+ gig_dbg(DEBUG_INIT,
+ "%s: isoc input URB %d/%d unlinked",
+ __func__, j, i);
usb_free_urb(ubc->isoinurbs[i]);
ubc->isoinurbs[i] = NULL;
}
}
if (ucs->urb_int_in) {
usb_kill_urb(ucs->urb_int_in);
- dbg(DEBUG_INIT, "%s: interrupt input URB unlinked", __func__);
+ gig_dbg(DEBUG_INIT, "%s: interrupt input URB unlinked",
+ __func__);
usb_free_urb(ucs->urb_int_in);
ucs->urb_int_in = NULL;
}
if (ucs->urb_cmd_out) {
usb_kill_urb(ucs->urb_cmd_out);
- dbg(DEBUG_INIT, "%s: command output URB unlinked", __func__);
+ gig_dbg(DEBUG_INIT, "%s: command output URB unlinked",
+ __func__);
usb_free_urb(ucs->urb_cmd_out);
ucs->urb_cmd_out = NULL;
}
if (ucs->urb_cmd_in) {
usb_kill_urb(ucs->urb_cmd_in);
- dbg(DEBUG_INIT, "%s: command input URB unlinked", __func__);
+ gig_dbg(DEBUG_INIT, "%s: command input URB unlinked",
+ __func__);
usb_free_urb(ucs->urb_cmd_in);
ucs->urb_cmd_in = NULL;
}
if (ucs->urb_ctrl) {
usb_kill_urb(ucs->urb_ctrl);
- dbg(DEBUG_INIT, "%s: control output URB unlinked", __func__);
+ gig_dbg(DEBUG_INIT, "%s: control output URB unlinked",
+ __func__);
usb_free_urb(ucs->urb_ctrl);
ucs->urb_ctrl = NULL;
}
@@ -2097,35 +2101,24 @@ static int gigaset_probe(struct usb_interface *interface,
struct bas_bc_state *ubc;
struct usb_endpoint_descriptor *endpoint;
int i, j;
- int ret;
-
- IFNULLRETVAL(udev, -ENODEV);
-
- dbg(DEBUG_ANY,
- "%s: Check if device matches .. (Vendor: 0x%x, Product: 0x%x)",
- __func__, le16_to_cpu(udev->descriptor.idVendor),
- le16_to_cpu(udev->descriptor.idProduct));
+ int rc;
- /* See if the device offered us matches what we can accept */
- if ((le16_to_cpu(udev->descriptor.idVendor) != USB_GIGA_VENDOR_ID) ||
- (le16_to_cpu(udev->descriptor.idProduct) != USB_GIGA_PRODUCT_ID &&
- le16_to_cpu(udev->descriptor.idProduct) != USB_4175_PRODUCT_ID &&
- le16_to_cpu(udev->descriptor.idProduct) != USB_SX303_PRODUCT_ID &&
- le16_to_cpu(udev->descriptor.idProduct) != USB_SX353_PRODUCT_ID)) {
- dbg(DEBUG_ANY, "%s: unmatched ID - exiting", __func__);
- return -ENODEV;
- }
+ gig_dbg(DEBUG_ANY,
+ "%s: Check if device matches .. (Vendor: 0x%x, Product: 0x%x)",
+ __func__, le16_to_cpu(udev->descriptor.idVendor),
+ le16_to_cpu(udev->descriptor.idProduct));
/* set required alternate setting */
hostif = interface->cur_altsetting;
if (hostif->desc.bAlternateSetting != 3) {
- dbg(DEBUG_ANY,
- "%s: wrong alternate setting %d - trying to switch",
- __func__, hostif->desc.bAlternateSetting);
+ gig_dbg(DEBUG_ANY,
+ "%s: wrong alternate setting %d - trying to switch",
+ __func__, hostif->desc.bAlternateSetting);
if (usb_set_interface(udev, hostif->desc.bInterfaceNumber, 3) < 0) {
- warn("usb_set_interface failed, device %d interface %d altsetting %d",
- udev->devnum, hostif->desc.bInterfaceNumber,
- hostif->desc.bAlternateSetting);
+ dev_warn(&udev->dev, "usb_set_interface failed, "
+ "device %d interface %d altsetting %d\n",
+ udev->devnum, hostif->desc.bInterfaceNumber,
+ hostif->desc.bAlternateSetting);
return -ENODEV;
}
hostif = interface->cur_altsetting;
@@ -2134,68 +2127,50 @@ static int gigaset_probe(struct usb_interface *interface,
/* Reject application specific interfaces
*/
if (hostif->desc.bInterfaceClass != 255) {
- warn("%s: bInterfaceClass == %d",
- __func__, hostif->desc.bInterfaceClass);
+ dev_warn(&udev->dev, "%s: bInterfaceClass == %d\n",
+ __func__, hostif->desc.bInterfaceClass);
return -ENODEV;
}
- info("%s: Device matched (Vendor: 0x%x, Product: 0x%x)",
- __func__, le16_to_cpu(udev->descriptor.idVendor),
- le16_to_cpu(udev->descriptor.idProduct));
+ dev_info(&udev->dev,
+ "%s: Device matched (Vendor: 0x%x, Product: 0x%x)\n",
+ __func__, le16_to_cpu(udev->descriptor.idVendor),
+ le16_to_cpu(udev->descriptor.idProduct));
cs = gigaset_getunassignedcs(driver);
if (!cs) {
- err("%s: no free cardstate", __func__);
+ dev_err(&udev->dev, "no free cardstate\n");
return -ENODEV;
}
ucs = cs->hw.bas;
+
+ /* save off device structure ptrs for later use */
+ usb_get_dev(udev);
ucs->udev = udev;
ucs->interface = interface;
+ cs->dev = &interface->dev;
/* allocate URBs:
* - one for the interrupt pipe
* - three for the different uses of the default control pipe
* - three for each isochronous pipe
*/
- ucs->urb_int_in = usb_alloc_urb(0, SLAB_KERNEL);
- if (!ucs->urb_int_in) {
- err("No free urbs available");
- goto error;
- }
- ucs->urb_cmd_in = usb_alloc_urb(0, SLAB_KERNEL);
- if (!ucs->urb_cmd_in) {
- err("No free urbs available");
- goto error;
- }
- ucs->urb_cmd_out = usb_alloc_urb(0, SLAB_KERNEL);
- if (!ucs->urb_cmd_out) {
- err("No free urbs available");
- goto error;
- }
- ucs->urb_ctrl = usb_alloc_urb(0, SLAB_KERNEL);
- if (!ucs->urb_ctrl) {
- err("No free urbs available");
- goto error;
- }
+ if (!(ucs->urb_int_in = usb_alloc_urb(0, SLAB_KERNEL)) ||
+ !(ucs->urb_cmd_in = usb_alloc_urb(0, SLAB_KERNEL)) ||
+ !(ucs->urb_cmd_out = usb_alloc_urb(0, SLAB_KERNEL)) ||
+ !(ucs->urb_ctrl = usb_alloc_urb(0, SLAB_KERNEL)))
+ goto allocerr;
for (j = 0; j < 2; ++j) {
ubc = cs->bcs[j].hw.bas;
- for (i = 0; i < BAS_OUTURBS; ++i) {
- ubc->isoouturbs[i].urb =
- usb_alloc_urb(BAS_NUMFRAMES, SLAB_KERNEL);
- if (!ubc->isoouturbs[i].urb) {
- err("No free urbs available");
- goto error;
- }
- }
- for (i = 0; i < BAS_INURBS; ++i) {
- ubc->isoinurbs[i] =
- usb_alloc_urb(BAS_NUMFRAMES, SLAB_KERNEL);
- if (!ubc->isoinurbs[i]) {
- err("No free urbs available");
- goto error;
- }
- }
+ for (i = 0; i < BAS_OUTURBS; ++i)
+ if (!(ubc->isoouturbs[i].urb =
+ usb_alloc_urb(BAS_NUMFRAMES, SLAB_KERNEL)))
+ goto allocerr;
+ for (i = 0; i < BAS_INURBS; ++i)
+ if (!(ubc->isoinurbs[i] =
+ usb_alloc_urb(BAS_NUMFRAMES, SLAB_KERNEL)))
+ goto allocerr;
}
ucs->rcvbuf = NULL;
@@ -2204,35 +2179,37 @@ static int gigaset_probe(struct usb_interface *interface,
/* Fill the interrupt urb and send it to the core */
endpoint = &hostif->endpoint[0].desc;
usb_fill_int_urb(ucs->urb_int_in, udev,
- usb_rcvintpipe(udev,
- (endpoint->bEndpointAddress) & 0x0f),
- ucs->int_in_buf, 3, read_int_callback, cs,
- endpoint->bInterval);
- ret = usb_submit_urb(ucs->urb_int_in, SLAB_KERNEL);
- if (ret) {
- err("could not submit interrupt URB: %s", get_usb_statmsg(ret));
+ usb_rcvintpipe(udev,
+ (endpoint->bEndpointAddress) & 0x0f),
+ ucs->int_in_buf, 3, read_int_callback, cs,
+ endpoint->bInterval);
+ if ((rc = usb_submit_urb(ucs->urb_int_in, SLAB_KERNEL)) != 0) {
+ dev_err(cs->dev, "could not submit interrupt URB: %s\n",
+ get_usb_rcmsg(rc));
goto error;
}
/* tell the device that the driver is ready */
- if ((ret = req_submit(cs->bcs, HD_DEVICE_INIT_ACK, 0, 0)) != 0)
+ if ((rc = req_submit(cs->bcs, HD_DEVICE_INIT_ACK, 0, 0)) != 0)
goto error;
/* tell common part that the device is ready */
if (startmode == SM_LOCKED)
atomic_set(&cs->mstate, MS_LOCKED);
- if (!gigaset_start(cs))
- goto error;
/* save address of controller structure */
usb_set_intfdata(interface, cs);
- /* set up device sysfs */
- gigaset_init_dev_sysfs(interface);
+ if (!gigaset_start(cs))
+ goto error;
+
return 0;
+allocerr:
+ dev_err(cs->dev, "could not allocate URBs\n");
error:
freeurbs(cs);
+ usb_set_intfdata(interface, NULL);
gigaset_unassign(cs);
return -ENODEV;
}
@@ -2244,24 +2221,38 @@ static void gigaset_disconnect(struct usb_interface *interface)
{
struct cardstate *cs;
struct bas_cardstate *ucs;
-
- /* clear device sysfs */
- gigaset_free_dev_sysfs(interface);
+ int j;
cs = usb_get_intfdata(interface);
- usb_set_intfdata(interface, NULL);
- IFNULLRET(cs);
ucs = cs->hw.bas;
- IFNULLRET(ucs);
- info("disconnecting GigaSet base");
+ dev_info(cs->dev, "disconnecting Gigaset base\n");
+
+ /* mark base as not ready, all channels disconnected */
+ atomic_set(&ucs->basstate, 0);
+
+ /* tell LL all channels are down */
+ //FIXME shouldn't gigaset_stop() do this?
+ for (j = 0; j < 2; ++j)
+ gigaset_bchannel_down(cs->bcs + j);
+
+ /* stop driver (common part) */
gigaset_stop(cs);
+
+ /* stop timers and URBs, free ressources */
+ del_timer_sync(&ucs->timer_ctrl);
+ del_timer_sync(&ucs->timer_atrdy);
+ del_timer_sync(&ucs->timer_cmd_in);
freeurbs(cs);
+ usb_set_intfdata(interface, NULL);
kfree(ucs->rcvbuf);
ucs->rcvbuf = NULL;
ucs->rcvbuf_size = 0;
- atomic_set(&ucs->basstate, 0);
+ usb_put_dev(ucs->udev);
+ ucs->interface = NULL;
+ ucs->udev = NULL;
+ cs->dev = NULL;
gigaset_unassign(cs);
}
@@ -2293,13 +2284,14 @@ static int __init bas_gigaset_init(void)
/* allocate memory for our driver state and intialize it */
if ((driver = gigaset_initdriver(GIGASET_MINOR, GIGASET_MINORS,
- GIGASET_MODULENAME, GIGASET_DEVNAME,
- GIGASET_DEVFSNAME, &gigops,
- THIS_MODULE)) == NULL)
+ GIGASET_MODULENAME, GIGASET_DEVNAME,
+ GIGASET_DEVFSNAME, &gigops,
+ THIS_MODULE)) == NULL)
goto error;
/* allocate memory for our device state and intialize it */
- cardstate = gigaset_initcs(driver, 2, 0, 0, cidmode, GIGASET_MODULENAME);
+ cardstate = gigaset_initcs(driver, 2, 0, 0, cidmode,
+ GIGASET_MODULENAME);
if (!cardstate)
goto error;
@@ -2328,22 +2320,35 @@ error: if (cardstate)
*/
static void __exit bas_gigaset_exit(void)
{
+ struct bas_cardstate *ucs = cardstate->hw.bas;
+
gigaset_blockdriver(driver); /* => probe will fail
- * => no gigaset_start any more
- */
+ * => no gigaset_start any more
+ */
gigaset_shutdown(cardstate);
/* from now on, no isdn callback should be possible */
- if (atomic_read(&cardstate->hw.bas->basstate) & BS_ATOPEN) {
- dbg(DEBUG_ANY, "closing AT channel");
- if (req_submit(cardstate->bcs,
- HD_CLOSE_ATCHANNEL, 0, BAS_TIMEOUT) >= 0) {
- /* successfully submitted - wait for completion */
- //wait_event_interruptible(cs->initwait, !cs->hw.bas->pending);
- //FIXME need own wait queue? wakeup?
- }
+ /* close all still open channels */
+ if (atomic_read(&ucs->basstate) & BS_B1OPEN) {
+ gig_dbg(DEBUG_INIT, "closing B1 channel");
+ usb_control_msg(ucs->udev, usb_sndctrlpipe(ucs->udev, 0),
+ HD_CLOSE_B1CHANNEL, OUT_VENDOR_REQ, 0, 0,
+ NULL, 0, BAS_TIMEOUT);
+ }
+ if (atomic_read(&ucs->basstate) & BS_B2OPEN) {
+ gig_dbg(DEBUG_INIT, "closing B2 channel");
+ usb_control_msg(ucs->udev, usb_sndctrlpipe(ucs->udev, 0),
+ HD_CLOSE_B2CHANNEL, OUT_VENDOR_REQ, 0, 0,
+ NULL, 0, BAS_TIMEOUT);
+ }
+ if (atomic_read(&ucs->basstate) & BS_ATOPEN) {
+ gig_dbg(DEBUG_INIT, "closing AT channel");
+ usb_control_msg(ucs->udev, usb_sndctrlpipe(ucs->udev, 0),
+ HD_CLOSE_ATCHANNEL, OUT_VENDOR_REQ, 0, 0,
+ NULL, 0, BAS_TIMEOUT);
}
+ atomic_set(&ucs->basstate, 0);
/* deregister this driver with the USB subsystem */
usb_deregister(&gigaset_usb_driver);
diff --git a/drivers/isdn/gigaset/common.c b/drivers/isdn/gigaset/common.c
index 64371995c1a..e55767b2ccd 100644
--- a/drivers/isdn/gigaset/common.c
+++ b/drivers/isdn/gigaset/common.c
@@ -1,7 +1,7 @@
/*
* Stuff used by all variants of the driver
*
- * Copyright (c) 2001 by Stefan Eilers <Eilers.Stefan@epost.de>,
+ * Copyright (c) 2001 by Stefan Eilers,
* Hansjoerg Lipp <hjlipp@web.de>,
* Tilman Schmidt <tilman@imap.cc>.
*
@@ -11,10 +11,6 @@
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
* =====================================================================
- * ToDo: ...
- * =====================================================================
- * Version: $Id: common.c,v 1.104.4.22 2006/02/04 18:28:16 hjlipp Exp $
- * =====================================================================
*/
#include "gigaset.h"
@@ -23,7 +19,7 @@
#include <linux/moduleparam.h>
/* Version Information */
-#define DRIVER_AUTHOR "Hansjoerg Lipp <hjlipp@web.de>, Tilman Schmidt <tilman@imap.cc>, Stefan Eilers <Eilers.Stefan@epost.de>"
+#define DRIVER_AUTHOR "Hansjoerg Lipp <hjlipp@web.de>, Tilman Schmidt <tilman@imap.cc>, Stefan Eilers"
#define DRIVER_DESC "Driver for Gigaset 307x"
/* Module parameters */
@@ -32,21 +28,10 @@ EXPORT_SYMBOL_GPL(gigaset_debuglevel);
module_param_named(debug, gigaset_debuglevel, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(debug, "debug level");
-/*======================================================================
- Prototypes of internal functions
- */
-
-//static void gigaset_process_response(int resp_code, int parameter,
-// struct at_state_t *at_state,
-// unsigned char ** pstring);
-static struct cardstate *alloc_cs(struct gigaset_driver *drv);
-static void free_cs(struct cardstate *cs);
-static void make_valid(struct cardstate *cs, unsigned mask);
-static void make_invalid(struct cardstate *cs, unsigned mask);
-
-#define VALID_MINOR 0x01
-#define VALID_ID 0x02
-#define ASSIGNED 0x04
+/* driver state flags */
+#define VALID_MINOR 0x01
+#define VALID_ID 0x02
+#define ASSIGNED 0x04
/* bitwise byte inversion table */
__u8 gigaset_invtab[256] = {
@@ -86,42 +71,40 @@ __u8 gigaset_invtab[256] = {
EXPORT_SYMBOL_GPL(gigaset_invtab);
void gigaset_dbg_buffer(enum debuglevel level, const unsigned char *msg,
- size_t len, const unsigned char *buf, int from_user)
+ size_t len, const unsigned char *buf)
{
unsigned char outbuf[80];
- unsigned char inbuf[80 - 1];
- size_t numin;
- const unsigned char *in;
+ unsigned char c;
size_t space = sizeof outbuf - 1;
unsigned char *out = outbuf;
+ size_t numin = len;
- if (!from_user) {
- in = buf;
- numin = len;
- } else {
- numin = len < sizeof inbuf ? len : sizeof inbuf;
- in = inbuf;
- if (copy_from_user(inbuf, (const unsigned char __user *) buf, numin)) {
- strncpy(inbuf, "<FAULT>", sizeof inbuf);
- numin = sizeof "<FAULT>" - 1;
+ while (numin--) {
+ c = *buf++;
+ if (c == '~' || c == '^' || c == '\\') {
+ if (!space--)
+ break;
+ *out++ = '\\';
}
- }
-
- for (; numin && space; --numin, ++in) {
- --space;
- if (*in >= 32)
- *out++ = *in;
- else {
+ if (c & 0x80) {
+ if (!space--)
+ break;
+ *out++ = '~';
+ c ^= 0x80;
+ }
+ if (c < 0x20 || c == 0x7f) {
+ if (!space--)
+ break;
*out++ = '^';
- if (space) {
- *out++ = '@' + *in;
- --space;
- }
+ c ^= 0x40;
}
+ if (!space--)
+ break;
+ *out++ = c;
}
*out = 0;
- dbg(level, "%s (%u bytes): %s", msg, (unsigned) len, outbuf);
+ gig_dbg(level, "%s (%u bytes): %s", msg, (unsigned) len, outbuf);
}
EXPORT_SYMBOL_GPL(gigaset_dbg_buffer);
@@ -146,11 +129,6 @@ int gigaset_enterconfigmode(struct cardstate *cs)
{
int i, r;
- if (!atomic_read(&cs->connected)) {
- err("not connected!");
- return -1;
- }
-
cs->control_state = TIOCM_RTS; //FIXME
r = setflags(cs, TIOCM_DTR, 200);
@@ -174,7 +152,7 @@ int gigaset_enterconfigmode(struct cardstate *cs)
return 0;
error:
- err("error %d on setuartbits!\n", -r);
+ dev_err(cs->dev, "error %d on setuartbits\n", -r);
cs->control_state = TIOCM_RTS|TIOCM_DTR; // FIXME is this a good value?
cs->ops->set_modem_ctrl(cs, 0, TIOCM_RTS|TIOCM_DTR);
@@ -187,13 +165,13 @@ static int test_timeout(struct at_state_t *at_state)
return 0;
if (--at_state->timer_expires) {
- dbg(DEBUG_MCMD, "decreased timer of %p to %lu",
- at_state, at_state->timer_expires);
+ gig_dbg(DEBUG_MCMD, "decreased timer of %p to %lu",
+ at_state, at_state->timer_expires);
return 0;
}
if (!gigaset_add_event(at_state->cs, at_state, EV_TIMEOUT, NULL,
- atomic_read(&at_state->timer_index), NULL)) {
+ at_state->timer_index, NULL)) {
//FIXME what should we do?
}
@@ -221,10 +199,10 @@ static void timer_tick(unsigned long data)
if (test_timeout(at_state))
timeout = 1;
- if (atomic_read(&cs->running)) {
- mod_timer(&cs->timer, jiffies + GIG_TICK);
+ if (cs->running) {
+ mod_timer(&cs->timer, jiffies + msecs_to_jiffies(GIG_TICK));
if (timeout) {
- dbg(DEBUG_CMD, "scheduling timeout");
+ gig_dbg(DEBUG_CMD, "scheduling timeout");
tasklet_schedule(&cs->event_tasklet);
}
}
@@ -238,13 +216,14 @@ int gigaset_get_channel(struct bc_state *bcs)
spin_lock_irqsave(&bcs->cs->lock, flags);
if (bcs->use_count) {
- dbg(DEBUG_ANY, "could not allocate channel %d", bcs->channel);
+ gig_dbg(DEBUG_ANY, "could not allocate channel %d",
+ bcs->channel);
spin_unlock_irqrestore(&bcs->cs->lock, flags);
return 0;
}
++bcs->use_count;
bcs->busy = 1;
- dbg(DEBUG_ANY, "allocated channel %d", bcs->channel);
+ gig_dbg(DEBUG_ANY, "allocated channel %d", bcs->channel);
spin_unlock_irqrestore(&bcs->cs->lock, flags);
return 1;
}
@@ -255,13 +234,13 @@ void gigaset_free_channel(struct bc_state *bcs)
spin_lock_irqsave(&bcs->cs->lock, flags);
if (!bcs->busy) {
- dbg(DEBUG_ANY, "could not free channel %d", bcs->channel);
+ gig_dbg(DEBUG_ANY, "could not free channel %d", bcs->channel);
spin_unlock_irqrestore(&bcs->cs->lock, flags);
return;
}
--bcs->use_count;
bcs->busy = 0;
- dbg(DEBUG_ANY, "freed channel %d", bcs->channel);
+ gig_dbg(DEBUG_ANY, "freed channel %d", bcs->channel);
spin_unlock_irqrestore(&bcs->cs->lock, flags);
}
@@ -274,14 +253,14 @@ int gigaset_get_channels(struct cardstate *cs)
for (i = 0; i < cs->channels; ++i)
if (cs->bcs[i].use_count) {
spin_unlock_irqrestore(&cs->lock, flags);
- dbg(DEBUG_ANY, "could not allocated all channels");
+ gig_dbg(DEBUG_ANY, "could not allocate all channels");
return 0;
}
for (i = 0; i < cs->channels; ++i)
++cs->bcs[i].use_count;
spin_unlock_irqrestore(&cs->lock, flags);
- dbg(DEBUG_ANY, "allocated all channels");
+ gig_dbg(DEBUG_ANY, "allocated all channels");
return 1;
}
@@ -291,7 +270,7 @@ void gigaset_free_channels(struct cardstate *cs)
unsigned long flags;
int i;
- dbg(DEBUG_ANY, "unblocking all channels");
+ gig_dbg(DEBUG_ANY, "unblocking all channels");
spin_lock_irqsave(&cs->lock, flags);
for (i = 0; i < cs->channels; ++i)
--cs->bcs[i].use_count;
@@ -303,7 +282,7 @@ void gigaset_block_channels(struct cardstate *cs)
unsigned long flags;
int i;
- dbg(DEBUG_ANY, "blocking all channels");
+ gig_dbg(DEBUG_ANY, "blocking all channels");
spin_lock_irqsave(&cs->lock, flags);
for (i = 0; i < cs->channels; ++i)
++cs->bcs[i].use_count;
@@ -314,25 +293,27 @@ static void clear_events(struct cardstate *cs)
{
struct event_t *ev;
unsigned head, tail;
+ unsigned long flags;
- /* no locking needed (no reader/writer allowed) */
+ spin_lock_irqsave(&cs->ev_lock, flags);
- head = atomic_read(&cs->ev_head);
- tail = atomic_read(&cs->ev_tail);
+ head = cs->ev_head;
+ tail = cs->ev_tail;
while (tail != head) {
ev = cs->events + head;
kfree(ev->ptr);
-
head = (head + 1) % MAX_EVENTS;
}
- atomic_set(&cs->ev_head, tail);
+ cs->ev_head = tail;
+
+ spin_unlock_irqrestore(&cs->ev_lock, flags);
}
struct event_t *gigaset_add_event(struct cardstate *cs,
- struct at_state_t *at_state, int type,
- void *ptr, int parameter, void *arg)
+ struct at_state_t *at_state, int type,
+ void *ptr, int parameter, void *arg)
{
unsigned long flags;
unsigned next, tail;
@@ -340,9 +321,9 @@ struct event_t *gigaset_add_event(struct cardstate *cs,
spin_lock_irqsave(&cs->ev_lock, flags);
- tail = atomic_read(&cs->ev_tail);
+ tail = cs->ev_tail;
next = (tail + 1) % MAX_EVENTS;
- if (unlikely(next == atomic_read(&cs->ev_head)))
+ if (unlikely(next == cs->ev_head))
err("event queue full");
else {
event = cs->events + tail;
@@ -352,7 +333,7 @@ struct event_t *gigaset_add_event(struct cardstate *cs,
event->ptr = ptr;
event->arg = arg;
event->parameter = parameter;
- atomic_set(&cs->ev_tail, next);
+ cs->ev_tail = next;
}
spin_unlock_irqrestore(&cs->ev_lock, flags);
@@ -391,14 +372,14 @@ static void gigaset_freebcs(struct bc_state *bcs)
{
int i;
- dbg(DEBUG_INIT, "freeing bcs[%d]->hw", bcs->channel);
+ gig_dbg(DEBUG_INIT, "freeing bcs[%d]->hw", bcs->channel);
if (!bcs->cs->ops->freebcshw(bcs)) {
- dbg(DEBUG_INIT, "failed");
+ gig_dbg(DEBUG_INIT, "failed");
}
- dbg(DEBUG_INIT, "clearing bcs[%d]->at_state", bcs->channel);
+ gig_dbg(DEBUG_INIT, "clearing bcs[%d]->at_state", bcs->channel);
clear_at_state(&bcs->at_state);
- dbg(DEBUG_INIT, "freeing bcs[%d]->skb", bcs->channel);
+ gig_dbg(DEBUG_INIT, "freeing bcs[%d]->skb", bcs->channel);
if (bcs->skb)
dev_kfree_skb(bcs->skb);
@@ -408,6 +389,52 @@ static void gigaset_freebcs(struct bc_state *bcs)
}
}
+static struct cardstate *alloc_cs(struct gigaset_driver *drv)
+{
+ unsigned long flags;
+ unsigned i;
+ static struct cardstate *ret = NULL;
+
+ spin_lock_irqsave(&drv->lock, flags);
+ for (i = 0; i < drv->minors; ++i) {
+ if (!(drv->flags[i] & VALID_MINOR)) {
+ drv->flags[i] = VALID_MINOR;
+ ret = drv->cs + i;
+ }
+ if (ret)
+ break;
+ }
+ spin_unlock_irqrestore(&drv->lock, flags);
+ return ret;
+}
+
+static void free_cs(struct cardstate *cs)
+{
+ unsigned long flags;
+ struct gigaset_driver *drv = cs->driver;
+ spin_lock_irqsave(&drv->lock, flags);
+ drv->flags[cs->minor_index] = 0;
+ spin_unlock_irqrestore(&drv->lock, flags);
+}
+
+static void make_valid(struct cardstate *cs, unsigned mask)
+{
+ unsigned long flags;
+ struct gigaset_driver *drv = cs->driver;
+ spin_lock_irqsave(&drv->lock, flags);
+ drv->flags[cs->minor_index] |= mask;
+ spin_unlock_irqrestore(&drv->lock, flags);
+}
+
+static void make_invalid(struct cardstate *cs, unsigned mask)
+{
+ unsigned long flags;
+ struct gigaset_driver *drv = cs->driver;
+ spin_lock_irqsave(&drv->lock, flags);
+ drv->flags[cs->minor_index] &= ~mask;
+ spin_unlock_irqrestore(&drv->lock, flags);
+}
+
void gigaset_freecs(struct cardstate *cs)
{
int i;
@@ -416,7 +443,7 @@ void gigaset_freecs(struct cardstate *cs)
if (!cs)
return;
- down(&cs->sem);
+ mutex_lock(&cs->mutex);
if (!cs->bcs)
goto f_cs;
@@ -424,8 +451,9 @@ void gigaset_freecs(struct cardstate *cs)
goto f_bcs;
spin_lock_irqsave(&cs->lock, flags);
- atomic_set(&cs->running, 0);
- spin_unlock_irqrestore(&cs->lock, flags); /* event handler and timer are not rescheduled below */
+ cs->running = 0;
+ spin_unlock_irqrestore(&cs->lock, flags); /* event handler and timer are
+ not rescheduled below */
tasklet_kill(&cs->event_tasklet);
del_timer_sync(&cs->timer);
@@ -434,7 +462,7 @@ void gigaset_freecs(struct cardstate *cs)
default:
gigaset_if_free(cs);
- dbg(DEBUG_INIT, "clearing hw");
+ gig_dbg(DEBUG_INIT, "clearing hw");
cs->ops->freecshw(cs);
//FIXME cmdbuf
@@ -443,36 +471,36 @@ void gigaset_freecs(struct cardstate *cs)
case 2: /* error in initcshw */
/* Deregister from LL */
make_invalid(cs, VALID_ID);
- dbg(DEBUG_INIT, "clearing iif");
+ gig_dbg(DEBUG_INIT, "clearing iif");
gigaset_i4l_cmd(cs, ISDN_STAT_UNLOAD);
/* fall through */
case 1: /* error when regestering to LL */
- dbg(DEBUG_INIT, "clearing at_state");
+ gig_dbg(DEBUG_INIT, "clearing at_state");
clear_at_state(&cs->at_state);
dealloc_at_states(cs);
/* fall through */
case 0: /* error in one call to initbcs */
for (i = 0; i < cs->channels; ++i) {
- dbg(DEBUG_INIT, "clearing bcs[%d]", i);
+ gig_dbg(DEBUG_INIT, "clearing bcs[%d]", i);
gigaset_freebcs(cs->bcs + i);
}
clear_events(cs);
- dbg(DEBUG_INIT, "freeing inbuf");
+ gig_dbg(DEBUG_INIT, "freeing inbuf");
kfree(cs->inbuf);
}
-f_bcs: dbg(DEBUG_INIT, "freeing bcs[]");
+f_bcs: gig_dbg(DEBUG_INIT, "freeing bcs[]");
kfree(cs->bcs);
-f_cs: dbg(DEBUG_INIT, "freeing cs");
- up(&cs->sem);
+f_cs: gig_dbg(DEBUG_INIT, "freeing cs");
+ mutex_unlock(&cs->mutex);
free_cs(cs);
}
EXPORT_SYMBOL_GPL(gigaset_freecs);
void gigaset_at_init(struct at_state_t *at_state, struct bc_state *bcs,
- struct cardstate *cs, int cid)
+ struct cardstate *cs, int cid)
{
int i;
@@ -482,8 +510,8 @@ void gigaset_at_init(struct at_state_t *at_state, struct bc_state *bcs,
at_state->pending_commands = 0;
at_state->timer_expires = 0;
at_state->timer_active = 0;
- atomic_set(&at_state->timer_index, 0);
- atomic_set(&at_state->seq_index, 0);
+ at_state->timer_index = 0;
+ at_state->seq_index = 0;
at_state->ConState = 0;
for (i = 0; i < STR_NUM; ++i)
at_state->str_var[i] = NULL;
@@ -501,7 +529,7 @@ void gigaset_at_init(struct at_state_t *at_state, struct bc_state *bcs,
static void gigaset_inbuf_init(struct inbuf_t *inbuf, struct bc_state *bcs,
- struct cardstate *cs, int inputstate)
+ struct cardstate *cs, int inputstate)
/* inbuf->read must be allocated before! */
{
atomic_set(&inbuf->head, 0);
@@ -512,9 +540,50 @@ static void gigaset_inbuf_init(struct inbuf_t *inbuf, struct bc_state *bcs,
inbuf->inputstate = inputstate;
}
+/* append received bytes to inbuf */
+int gigaset_fill_inbuf(struct inbuf_t *inbuf, const unsigned char *src,
+ unsigned numbytes)
+{
+ unsigned n, head, tail, bytesleft;
+
+ gig_dbg(DEBUG_INTR, "received %u bytes", numbytes);
+
+ if (!numbytes)
+ return 0;
+
+ bytesleft = numbytes;
+ tail = atomic_read(&inbuf->tail);
+ head = atomic_read(&inbuf->head);
+ gig_dbg(DEBUG_INTR, "buffer state: %u -> %u", head, tail);
+
+ while (bytesleft) {
+ if (head > tail)
+ n = head - 1 - tail;
+ else if (head == 0)
+ n = (RBUFSIZE-1) - tail;
+ else
+ n = RBUFSIZE - tail;
+ if (!n) {
+ dev_err(inbuf->cs->dev,
+ "buffer overflow (%u bytes lost)", bytesleft);
+ break;
+ }
+ if (n > bytesleft)
+ n = bytesleft;
+ memcpy(inbuf->data + tail, src, n);
+ bytesleft -= n;
+ tail = (tail + n) % RBUFSIZE;
+ src += n;
+ }
+ gig_dbg(DEBUG_INTR, "setting tail to %u", tail);
+ atomic_set(&inbuf->tail, tail);
+ return numbytes != bytesleft;
+}
+EXPORT_SYMBOL_GPL(gigaset_fill_inbuf);
+
/* Initialize the b-channel structure */
static struct bc_state *gigaset_initbcs(struct bc_state *bcs,
- struct cardstate *cs, int channel)
+ struct cardstate *cs, int channel)
{
int i;
@@ -526,7 +595,7 @@ static struct bc_state *gigaset_initbcs(struct bc_state *bcs,
bcs->trans_down = 0;
bcs->trans_up = 0;
- dbg(DEBUG_INIT, "setting up bcs[%d]->at_state", channel);
+ gig_dbg(DEBUG_INIT, "setting up bcs[%d]->at_state", channel);
gigaset_at_init(&bcs->at_state, bcs, cs, -1);
bcs->rcvbytes = 0;
@@ -535,7 +604,7 @@ static struct bc_state *gigaset_initbcs(struct bc_state *bcs,
bcs->emptycount = 0;
#endif
- dbg(DEBUG_INIT, "allocating bcs[%d]->skb", channel);
+ gig_dbg(DEBUG_INIT, "allocating bcs[%d]->skb", channel);
bcs->fcs = PPP_INITFCS;
bcs->inputstate = 0;
if (cs->ignoreframes) {
@@ -544,7 +613,7 @@ static struct bc_state *gigaset_initbcs(struct bc_state *bcs,
} else if ((bcs->skb = dev_alloc_skb(SBUFSIZE + HW_HDR_LEN)) != NULL)
skb_reserve(bcs->skb, HW_HDR_LEN);
else {
- warn("could not allocate skb");
+ dev_warn(cs->dev, "could not allocate skb\n");
bcs->inputstate |= INS_skip_frame;
}
@@ -559,14 +628,13 @@ static struct bc_state *gigaset_initbcs(struct bc_state *bcs,
for (i = 0; i < AT_NUM; ++i)
bcs->commands[i] = NULL;
- dbg(DEBUG_INIT, " setting up bcs[%d]->hw", channel);
+ gig_dbg(DEBUG_INIT, " setting up bcs[%d]->hw", channel);
if (cs->ops->initbcshw(bcs))
return bcs;
-//error:
- dbg(DEBUG_INIT, " failed");
+ gig_dbg(DEBUG_INIT, " failed");
- dbg(DEBUG_INIT, " freeing bcs[%d]->skb", channel);
+ gig_dbg(DEBUG_INIT, " freeing bcs[%d]->skb", channel);
if (bcs->skb)
dev_kfree_skb(bcs->skb);
@@ -578,9 +646,10 @@ static struct bc_state *gigaset_initbcs(struct bc_state *bcs,
* Calls hardware dependent gigaset_initcshw() function
* Calls B channel initialization function gigaset_initbcs() for each B channel
* parameters:
- * drv hardware driver the device belongs to
+ * drv hardware driver the device belongs to
* channels number of B channels supported by device
- * onechannel !=0: B channel data and AT commands share one communication channel
+ * onechannel !=0: B channel data and AT commands share one
+ * communication channel
* ==0: B channels have separate communication channels
* ignoreframes number of frames to ignore after setting up B channel
* cidmode !=0: start in CallID mode
@@ -593,17 +662,18 @@ struct cardstate *gigaset_initcs(struct gigaset_driver *drv, int channels,
int cidmode, const char *modulename)
{
struct cardstate *cs = NULL;
+ unsigned long flags;
int i;
- dbg(DEBUG_INIT, "allocating cs");
+ gig_dbg(DEBUG_INIT, "allocating cs");
cs = alloc_cs(drv);
if (!cs)
goto error;
- dbg(DEBUG_INIT, "allocating bcs[0..%d]", channels - 1);
+ gig_dbg(DEBUG_INIT, "allocating bcs[0..%d]", channels - 1);
cs->bcs = kmalloc(channels * sizeof(struct bc_state), GFP_KERNEL);
if (!cs->bcs)
goto error;
- dbg(DEBUG_INIT, "allocating inbuf");
+ gig_dbg(DEBUG_INIT, "allocating inbuf");
cs->inbuf = kmalloc(sizeof(struct inbuf_t), GFP_KERNEL);
if (!cs->inbuf)
goto error;
@@ -613,19 +683,23 @@ struct cardstate *gigaset_initcs(struct gigaset_driver *drv, int channels,
cs->onechannel = onechannel;
cs->ignoreframes = ignoreframes;
INIT_LIST_HEAD(&cs->temp_at_states);
- atomic_set(&cs->running, 0);
+ cs->running = 0;
init_timer(&cs->timer); /* clear next & prev */
spin_lock_init(&cs->ev_lock);
- atomic_set(&cs->ev_tail, 0);
- atomic_set(&cs->ev_head, 0);
- init_MUTEX_LOCKED(&cs->sem);
- tasklet_init(&cs->event_tasklet, &gigaset_handle_event, (unsigned long) cs);
+ cs->ev_tail = 0;
+ cs->ev_head = 0;
+ mutex_init(&cs->mutex);
+ mutex_lock(&cs->mutex);
+
+ tasklet_init(&cs->event_tasklet, &gigaset_handle_event,
+ (unsigned long) cs);
atomic_set(&cs->commands_pending, 0);
cs->cur_at_seq = 0;
cs->gotfwver = -1;
cs->open_count = 0;
+ cs->dev = NULL;
cs->tty = NULL;
- atomic_set(&cs->cidmode, cidmode != 0);
+ cs->cidmode = cidmode != 0;
//if(onechannel) { //FIXME
cs->tabnocid = gigaset_tab_nocid_m10x;
@@ -642,50 +716,43 @@ struct cardstate *gigaset_initcs(struct gigaset_driver *drv, int channels,
atomic_set(&cs->mstate, MS_UNINITIALIZED);
for (i = 0; i < channels; ++i) {
- dbg(DEBUG_INIT, "setting up bcs[%d].read", i);
+ gig_dbg(DEBUG_INIT, "setting up bcs[%d].read", i);
if (!gigaset_initbcs(cs->bcs + i, cs, i))
goto error;
}
++cs->cs_init;
- dbg(DEBUG_INIT, "setting up at_state");
+ gig_dbg(DEBUG_INIT, "setting up at_state");
spin_lock_init(&cs->lock);
gigaset_at_init(&cs->at_state, NULL, cs, 0);
cs->dle = 0;
cs->cbytes = 0;
- dbg(DEBUG_INIT, "setting up inbuf");
+ gig_dbg(DEBUG_INIT, "setting up inbuf");
if (onechannel) { //FIXME distinction necessary?
gigaset_inbuf_init(cs->inbuf, cs->bcs, cs, INS_command);
} else
gigaset_inbuf_init(cs->inbuf, NULL, cs, INS_command);
- atomic_set(&cs->connected, 0);
+ cs->connected = 0;
+ cs->isdn_up = 0;
- dbg(DEBUG_INIT, "setting up cmdbuf");
+ gig_dbg(DEBUG_INIT, "setting up cmdbuf");
cs->cmdbuf = cs->lastcmdbuf = NULL;
spin_lock_init(&cs->cmdlock);
cs->curlen = 0;
cs->cmdbytes = 0;
- /*
- * Tell the ISDN4Linux subsystem (the LL) that
- * a driver for a USB-Device is available !
- * If this is done, "isdnctrl" is able to bind a device for this driver even
- * if no physical usb-device is currently connected.
- * But this device will just be accessable if a physical USB device is connected
- * (via "gigaset_probe") .
- */
- dbg(DEBUG_INIT, "setting up iif");
+ gig_dbg(DEBUG_INIT, "setting up iif");
if (!gigaset_register_to_LL(cs, modulename)) {
- err("register_isdn=>error");
+ err("register_isdn failed");
goto error;
}
make_valid(cs, VALID_ID);
++cs->cs_init;
- dbg(DEBUG_INIT, "setting up hw");
+ gig_dbg(DEBUG_INIT, "setting up hw");
if (!cs->ops->initcshw(cs))
goto error;
@@ -693,27 +760,28 @@ struct cardstate *gigaset_initcs(struct gigaset_driver *drv, int channels,
gigaset_if_init(cs);
- atomic_set(&cs->running, 1);
- cs->timer.data = (unsigned long) cs;
- cs->timer.function = timer_tick;
- cs->timer.expires = jiffies + GIG_TICK;
+ spin_lock_irqsave(&cs->lock, flags);
+ cs->running = 1;
+ spin_unlock_irqrestore(&cs->lock, flags);
+ setup_timer(&cs->timer, timer_tick, (unsigned long) cs);
+ cs->timer.expires = jiffies + msecs_to_jiffies(GIG_TICK);
/* FIXME: can jiffies increase too much until the timer is added?
* Same problem(?) with mod_timer() in timer_tick(). */
add_timer(&cs->timer);
- dbg(DEBUG_INIT, "cs initialized!");
- up(&cs->sem);
+ gig_dbg(DEBUG_INIT, "cs initialized");
+ mutex_unlock(&cs->mutex);
return cs;
error: if (cs)
- up(&cs->sem);
- dbg(DEBUG_INIT, "failed");
+ mutex_unlock(&cs->mutex);
+ gig_dbg(DEBUG_INIT, "failed");
gigaset_freecs(cs);
return NULL;
}
EXPORT_SYMBOL_GPL(gigaset_initcs);
-/* ReInitialize the b-channel structure */ /* e.g. called on hangup, disconnect */
+/* ReInitialize the b-channel structure on hangup */
void gigaset_bcs_reinit(struct bc_state *bcs)
{
struct sk_buff *skb;
@@ -723,12 +791,12 @@ void gigaset_bcs_reinit(struct bc_state *bcs)
while ((skb = skb_dequeue(&bcs->squeue)) != NULL)
dev_kfree_skb(skb);
- spin_lock_irqsave(&cs->lock, flags); //FIXME
+ spin_lock_irqsave(&cs->lock, flags);
clear_at_state(&bcs->at_state);
bcs->at_state.ConState = 0;
bcs->at_state.timer_active = 0;
bcs->at_state.timer_expires = 0;
- bcs->at_state.cid = -1; /* No CID defined */
+ bcs->at_state.cid = -1; /* No CID defined */
spin_unlock_irqrestore(&cs->lock, flags);
bcs->inputstate = 0;
@@ -803,11 +871,14 @@ static void cleanup_cs(struct cardstate *cs)
int gigaset_start(struct cardstate *cs)
{
- if (down_interruptible(&cs->sem))
+ unsigned long flags;
+
+ if (mutex_lock_interruptible(&cs->mutex))
return 0;
- //info("USB device for Gigaset 307x now attached to Dev %d", ucs->minor);
- atomic_set(&cs->connected, 1);
+ spin_lock_irqsave(&cs->lock, flags);
+ cs->connected = 1;
+ spin_unlock_irqrestore(&cs->lock, flags);
if (atomic_read(&cs->mstate) != MS_LOCKED) {
cs->ops->set_modem_ctrl(cs, 0, TIOCM_DTR|TIOCM_RTS);
@@ -826,23 +897,26 @@ int gigaset_start(struct cardstate *cs)
goto error;
}
- dbg(DEBUG_CMD, "scheduling START");
+ gig_dbg(DEBUG_CMD, "scheduling START");
gigaset_schedule_event(cs);
wait_event(cs->waitqueue, !cs->waiting);
- up(&cs->sem);
+ /* set up device sysfs */
+ gigaset_init_dev_sysfs(cs);
+
+ mutex_unlock(&cs->mutex);
return 1;
error:
- up(&cs->sem);
+ mutex_unlock(&cs->mutex);
return 0;
}
EXPORT_SYMBOL_GPL(gigaset_start);
void gigaset_shutdown(struct cardstate *cs)
{
- down(&cs->sem);
+ mutex_lock(&cs->mutex);
cs->waiting = 1;
@@ -851,11 +925,11 @@ void gigaset_shutdown(struct cardstate *cs)
goto exit;
}
- dbg(DEBUG_CMD, "scheduling SHUTDOWN");
+ gig_dbg(DEBUG_CMD, "scheduling SHUTDOWN");
gigaset_schedule_event(cs);
if (wait_event_interruptible(cs->waitqueue, !cs->waiting)) {
- warn("aborted");
+ warn("%s: aborted", __func__);
//FIXME
}
@@ -872,15 +946,13 @@ void gigaset_shutdown(struct cardstate *cs)
cleanup_cs(cs);
exit:
- up(&cs->sem);
+ mutex_unlock(&cs->mutex);
}
EXPORT_SYMBOL_GPL(gigaset_shutdown);
void gigaset_stop(struct cardstate *cs)
{
- down(&cs->sem);
-
- atomic_set(&cs->connected, 0);
+ mutex_lock(&cs->mutex);
cs->waiting = 1;
@@ -889,21 +961,21 @@ void gigaset_stop(struct cardstate *cs)
goto exit;
}
- dbg(DEBUG_CMD, "scheduling STOP");
+ gig_dbg(DEBUG_CMD, "scheduling STOP");
gigaset_schedule_event(cs);
if (wait_event_interruptible(cs->waitqueue, !cs->waiting)) {
- warn("aborted");
+ warn("%s: aborted", __func__);
//FIXME
}
- /* Tell the LL that the device is not available .. */
- gigaset_i4l_cmd(cs, ISDN_STAT_STOP); // FIXME move to event layer?
+ /* clear device sysfs */
+ gigaset_free_dev_sysfs(cs);
cleanup_cs(cs);
exit:
- up(&cs->sem);
+ mutex_unlock(&cs->mutex);
}
EXPORT_SYMBOL_GPL(gigaset_stop);
@@ -947,31 +1019,25 @@ void gigaset_debugdrivers(void)
spin_lock_irqsave(&driver_lock, flags);
list_for_each_entry(drv, &drivers, list) {
- dbg(DEBUG_DRIVER, "driver %p", drv);
+ gig_dbg(DEBUG_DRIVER, "driver %p", drv);
spin_lock(&drv->lock);
for (i = 0; i < drv->minors; ++i) {
- dbg(DEBUG_DRIVER, " index %u", i);
- dbg(DEBUG_DRIVER, " flags 0x%02x", drv->flags[i]);
+ gig_dbg(DEBUG_DRIVER, " index %u", i);
+ gig_dbg(DEBUG_DRIVER, " flags 0x%02x",
+ drv->flags[i]);
cs = drv->cs + i;
- dbg(DEBUG_DRIVER, " cardstate %p", cs);
- dbg(DEBUG_DRIVER, " minor_index %u", cs->minor_index);
- dbg(DEBUG_DRIVER, " driver %p", cs->driver);
- dbg(DEBUG_DRIVER, " i4l id %d", cs->myid);
+ gig_dbg(DEBUG_DRIVER, " cardstate %p", cs);
+ gig_dbg(DEBUG_DRIVER, " minor_index %u",
+ cs->minor_index);
+ gig_dbg(DEBUG_DRIVER, " driver %p", cs->driver);
+ gig_dbg(DEBUG_DRIVER, " i4l id %d", cs->myid);
}
spin_unlock(&drv->lock);
}
spin_unlock_irqrestore(&driver_lock, flags);
}
-EXPORT_SYMBOL_GPL(gigaset_debugdrivers);
-
-struct cardstate *gigaset_get_cs_by_tty(struct tty_struct *tty)
-{
- if (tty->index < 0 || tty->index >= tty->driver->num)
- return NULL;
- return gigaset_get_cs_by_minor(tty->index + tty->driver->minor_start);
-}
-struct cardstate *gigaset_get_cs_by_minor(unsigned minor)
+static struct cardstate *gigaset_get_cs_by_minor(unsigned minor)
{
unsigned long flags;
static struct cardstate *ret = NULL;
@@ -994,6 +1060,13 @@ struct cardstate *gigaset_get_cs_by_minor(unsigned minor)
return ret;
}
+struct cardstate *gigaset_get_cs_by_tty(struct tty_struct *tty)
+{
+ if (tty->index < 0 || tty->index >= tty->driver->num)
+ return NULL;
+ return gigaset_get_cs_by_minor(tty->index + tty->driver->minor_start);
+}
+
void gigaset_freedriver(struct gigaset_driver *drv)
{
unsigned long flags;
@@ -1014,20 +1087,20 @@ EXPORT_SYMBOL_GPL(gigaset_freedriver);
/* gigaset_initdriver
* Allocate and initialize gigaset_driver structure. Initialize interface.
* parameters:
- * minor First minor number
- * minors Number of minors this driver can handle
- * procname Name of the driver (e.g. for /proc/tty/drivers, path in /proc/driver)
- * devname Name of the device files (prefix without minor number)
- * devfsname Devfs name of the device files without %d
+ * minor First minor number
+ * minors Number of minors this driver can handle
+ * procname Name of the driver
+ * devname Name of the device files (prefix without minor number)
+ * devfsname Devfs name of the device files without %d
* return value:
- * Pointer to the gigaset_driver structure on success, NULL on failure.
+ * Pointer to the gigaset_driver structure on success, NULL on failure.
*/
struct gigaset_driver *gigaset_initdriver(unsigned minor, unsigned minors,
- const char *procname,
- const char *devname,
- const char *devfsname,
- const struct gigaset_ops *ops,
- struct module *owner)
+ const char *procname,
+ const char *devname,
+ const char *devfsname,
+ const struct gigaset_ops *ops,
+ struct module *owner)
{
struct gigaset_driver *drv;
unsigned long flags;
@@ -1036,8 +1109,9 @@ struct gigaset_driver *gigaset_initdriver(unsigned minor, unsigned minors,
drv = kmalloc(sizeof *drv, GFP_KERNEL);
if (!drv)
return NULL;
+
if (!try_module_get(owner))
- return NULL;
+ goto out1;
drv->cs = NULL;
drv->have_tty = 0;
@@ -1051,10 +1125,11 @@ struct gigaset_driver *gigaset_initdriver(unsigned minor, unsigned minors,
drv->cs = kmalloc(minors * sizeof *drv->cs, GFP_KERNEL);
if (!drv->cs)
- goto out1;
+ goto out2;
+
drv->flags = kmalloc(minors * sizeof *drv->flags, GFP_KERNEL);
if (!drv->flags)
- goto out2;
+ goto out3;
for (i = 0; i < minors; ++i) {
drv->flags[i] = 0;
@@ -1071,61 +1146,16 @@ struct gigaset_driver *gigaset_initdriver(unsigned minor, unsigned minors,
return drv;
-out2:
+out3:
kfree(drv->cs);
+out2:
+ module_put(owner);
out1:
kfree(drv);
- module_put(owner);
return NULL;
}
EXPORT_SYMBOL_GPL(gigaset_initdriver);
-static struct cardstate *alloc_cs(struct gigaset_driver *drv)
-{
- unsigned long flags;
- unsigned i;
- static struct cardstate *ret = NULL;
-
- spin_lock_irqsave(&drv->lock, flags);
- for (i = 0; i < drv->minors; ++i) {
- if (!(drv->flags[i] & VALID_MINOR)) {
- drv->flags[i] = VALID_MINOR;
- ret = drv->cs + i;
- }
- if (ret)
- break;
- }
- spin_unlock_irqrestore(&drv->lock, flags);
- return ret;
-}
-
-static void free_cs(struct cardstate *cs)
-{
- unsigned long flags;
- struct gigaset_driver *drv = cs->driver;
- spin_lock_irqsave(&drv->lock, flags);
- drv->flags[cs->minor_index] = 0;
- spin_unlock_irqrestore(&drv->lock, flags);
-}
-
-static void make_valid(struct cardstate *cs, unsigned mask)
-{
- unsigned long flags;
- struct gigaset_driver *drv = cs->driver;
- spin_lock_irqsave(&drv->lock, flags);
- drv->flags[cs->minor_index] |= mask;
- spin_unlock_irqrestore(&drv->lock, flags);
-}
-
-static void make_invalid(struct cardstate *cs, unsigned mask)
-{
- unsigned long flags;
- struct gigaset_driver *drv = cs->driver;
- spin_lock_irqsave(&drv->lock, flags);
- drv->flags[cs->minor_index] &= ~mask;
- spin_unlock_irqrestore(&drv->lock, flags);
-}
-
/* For drivers without fixed assignment device<->cardstate (usb) */
struct cardstate *gigaset_getunassignedcs(struct gigaset_driver *drv)
{
diff --git a/drivers/isdn/gigaset/ev-layer.c b/drivers/isdn/gigaset/ev-layer.c
index fdcb80bb21c..18e05c09b71 100644
--- a/drivers/isdn/gigaset/ev-layer.c
+++ b/drivers/isdn/gigaset/ev-layer.c
@@ -1,7 +1,7 @@
/*
* Stuff used by all variants of the driver
*
- * Copyright (c) 2001 by Stefan Eilers <Eilers.Stefan@epost.de>,
+ * Copyright (c) 2001 by Stefan Eilers,
* Hansjoerg Lipp <hjlipp@web.de>,
* Tilman Schmidt <tilman@imap.cc>.
*
@@ -11,82 +11,78 @@
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
* =====================================================================
- * ToDo: ...
- * =====================================================================
- * Version: $Id: ev-layer.c,v 1.4.2.18 2006/02/04 18:28:16 hjlipp Exp $
- * =====================================================================
*/
#include "gigaset.h"
/* ========================================================== */
/* bit masks for pending commands */
-#define PC_INIT 0x004
-#define PC_DLE0 0x008
-#define PC_DLE1 0x010
-#define PC_CID 0x080
-#define PC_NOCID 0x100
-#define PC_HUP 0x002
-#define PC_DIAL 0x001
-#define PC_ACCEPT 0x040
-#define PC_SHUTDOWN 0x020
-#define PC_CIDMODE 0x200
-#define PC_UMMODE 0x400
+#define PC_DIAL 0x001
+#define PC_HUP 0x002
+#define PC_INIT 0x004
+#define PC_DLE0 0x008
+#define PC_DLE1 0x010
+#define PC_SHUTDOWN 0x020
+#define PC_ACCEPT 0x040
+#define PC_CID 0x080
+#define PC_NOCID 0x100
+#define PC_CIDMODE 0x200
+#define PC_UMMODE 0x400
/* types of modem responses */
-#define RT_NOTHING 0
-#define RT_ZSAU 1
-#define RT_RING 2
-#define RT_NUMBER 3
-#define RT_STRING 4
-#define RT_HEX 5
-#define RT_ZCAU 6
+#define RT_NOTHING 0
+#define RT_ZSAU 1
+#define RT_RING 2
+#define RT_NUMBER 3
+#define RT_STRING 4
+#define RT_HEX 5
+#define RT_ZCAU 6
/* Possible ASCII responses */
-#define RSP_OK 0
-//#define RSP_BUSY 1
-//#define RSP_CONNECT 2
-#define RSP_ZGCI 3
-#define RSP_RING 4
-#define RSP_ZAOC 5
-#define RSP_ZCSTR 6
-#define RSP_ZCFGT 7
-#define RSP_ZCFG 8
-#define RSP_ZCCR 9
-#define RSP_EMPTY 10
-#define RSP_ZLOG 11
-#define RSP_ZCAU 12
-#define RSP_ZMWI 13
-#define RSP_ZABINFO 14
-#define RSP_ZSMLSTCHG 15
-#define RSP_VAR 100
-#define RSP_ZSAU (RSP_VAR + VAR_ZSAU)
-#define RSP_ZDLE (RSP_VAR + VAR_ZDLE)
-#define RSP_ZVLS (RSP_VAR + VAR_ZVLS)
-#define RSP_ZCTP (RSP_VAR + VAR_ZCTP)
-#define RSP_STR (RSP_VAR + VAR_NUM)
-#define RSP_NMBR (RSP_STR + STR_NMBR)
-#define RSP_ZCPN (RSP_STR + STR_ZCPN)
-#define RSP_ZCON (RSP_STR + STR_ZCON)
-#define RSP_ZBC (RSP_STR + STR_ZBC)
-#define RSP_ZHLC (RSP_STR + STR_ZHLC)
-#define RSP_ERROR -1 /* ERROR */
-#define RSP_WRONG_CID -2 /* unknown cid in cmd */
-//#define RSP_EMPTY -3
-#define RSP_UNKNOWN -4 /* unknown response */
-#define RSP_FAIL -5 /* internal error */
-#define RSP_INVAL -6 /* invalid response */
-
-#define RSP_NONE -19
-#define RSP_STRING -20
-#define RSP_NULL -21
-//#define RSP_RETRYFAIL -22
-//#define RSP_RETRY -23
-//#define RSP_SKIP -24
-#define RSP_INIT -27
-#define RSP_ANY -26
-#define RSP_LAST -28
-#define RSP_NODEV -9
+#define RSP_OK 0
+//#define RSP_BUSY 1
+//#define RSP_CONNECT 2
+#define RSP_ZGCI 3
+#define RSP_RING 4
+#define RSP_ZAOC 5
+#define RSP_ZCSTR 6
+#define RSP_ZCFGT 7
+#define RSP_ZCFG 8
+#define RSP_ZCCR 9
+#define RSP_EMPTY 10
+#define RSP_ZLOG 11
+#define RSP_ZCAU 12
+#define RSP_ZMWI 13
+#define RSP_ZABINFO 14
+#define RSP_ZSMLSTCHG 15
+#define RSP_VAR 100
+#define RSP_ZSAU (RSP_VAR + VAR_ZSAU)
+#define RSP_ZDLE (RSP_VAR + VAR_ZDLE)
+#define RSP_ZVLS (RSP_VAR + VAR_ZVLS)
+#define RSP_ZCTP (RSP_VAR + VAR_ZCTP)
+#define RSP_STR (RSP_VAR + VAR_NUM)
+#define RSP_NMBR (RSP_STR + STR_NMBR)
+#define RSP_ZCPN (RSP_STR + STR_ZCPN)
+#define RSP_ZCON (RSP_STR + STR_ZCON)
+#define RSP_ZBC (RSP_STR + STR_ZBC)
+#define RSP_ZHLC (RSP_STR + STR_ZHLC)
+#define RSP_ERROR -1 /* ERROR */
+#define RSP_WRONG_CID -2 /* unknown cid in cmd */
+//#define RSP_EMPTY -3
+#define RSP_UNKNOWN -4 /* unknown response */
+#define RSP_FAIL -5 /* internal error */
+#define RSP_INVAL -6 /* invalid response */
+
+#define RSP_NONE -19
+#define RSP_STRING -20
+#define RSP_NULL -21
+//#define RSP_RETRYFAIL -22
+//#define RSP_RETRY -23
+//#define RSP_SKIP -24
+#define RSP_INIT -27
+#define RSP_ANY -26
+#define RSP_LAST -28
+#define RSP_NODEV -9
/* actions for process_response */
#define ACT_NOTHING 0
@@ -112,7 +108,7 @@
#define ACT_DISCONNECT 20
#define ACT_CONNECT 21
#define ACT_REMOTEREJECT 22
-#define ACT_CONNTIMEOUT 23
+#define ACT_CONNTIMEOUT 23
#define ACT_REMOTEHUP 24
#define ACT_ABORTHUP 25
#define ACT_ICALL 26
@@ -127,40 +123,40 @@
#define ACT_ERROR 35
#define ACT_ABORTCID 36
#define ACT_ZCAU 37
-#define ACT_NOTIFY_BC_DOWN 38
-#define ACT_NOTIFY_BC_UP 39
-#define ACT_DIAL 40
-#define ACT_ACCEPT 41
-#define ACT_PROTO_L2 42
-#define ACT_HUP 43
-#define ACT_IF_LOCK 44
-#define ACT_START 45
-#define ACT_STOP 46
-#define ACT_FAKEDLE0 47
-#define ACT_FAKEHUP 48
-#define ACT_FAKESDOWN 49
-#define ACT_SHUTDOWN 50
-#define ACT_PROC_CIDMODE 51
-#define ACT_UMODESET 52
-#define ACT_FAILUMODE 53
-#define ACT_CMODESET 54
-#define ACT_FAILCMODE 55
-#define ACT_IF_VER 56
+#define ACT_NOTIFY_BC_DOWN 38
+#define ACT_NOTIFY_BC_UP 39
+#define ACT_DIAL 40
+#define ACT_ACCEPT 41
+#define ACT_PROTO_L2 42
+#define ACT_HUP 43
+#define ACT_IF_LOCK 44
+#define ACT_START 45
+#define ACT_STOP 46
+#define ACT_FAKEDLE0 47
+#define ACT_FAKEHUP 48
+#define ACT_FAKESDOWN 49
+#define ACT_SHUTDOWN 50
+#define ACT_PROC_CIDMODE 51
+#define ACT_UMODESET 52
+#define ACT_FAILUMODE 53
+#define ACT_CMODESET 54
+#define ACT_FAILCMODE 55
+#define ACT_IF_VER 56
#define ACT_CMD 100
/* at command sequences */
-#define SEQ_NONE 0
-#define SEQ_INIT 100
-#define SEQ_DLE0 200
-#define SEQ_DLE1 250
-#define SEQ_CID 300
-#define SEQ_NOCID 350
-#define SEQ_HUP 400
-#define SEQ_DIAL 600
-#define SEQ_ACCEPT 720
-#define SEQ_SHUTDOWN 500
-#define SEQ_CIDMODE 10
-#define SEQ_UMMODE 11
+#define SEQ_NONE 0
+#define SEQ_INIT 100
+#define SEQ_DLE0 200
+#define SEQ_DLE1 250
+#define SEQ_CID 300
+#define SEQ_NOCID 350
+#define SEQ_HUP 400
+#define SEQ_DIAL 600
+#define SEQ_ACCEPT 720
+#define SEQ_SHUTDOWN 500
+#define SEQ_CIDMODE 10
+#define SEQ_UMMODE 11
// 100: init, 200: dle0, 250:dle1, 300: get cid (dial), 350: "hup" (no cid), 400: hup, 500: reset, 600: dial, 700: ring
@@ -175,7 +171,7 @@ struct reply_t gigaset_tab_nocid_m10x[]= /* with dle mode */
// {ACT_TIMEOUT}},
{RSP_INIT, -1, -1,SEQ_INIT, 100, INIT_TIMEOUT,
- {ACT_TIMEOUT}}, /* wait until device is ready */
+ {ACT_TIMEOUT}}, /* wait until device is ready */
{EV_TIMEOUT, 100,100, -1, 101, 3, {0}, "Z\r"}, /* device in transparent mode? try to initialize it. */
{RSP_OK, 101,103, -1, 120, 5, {ACT_GETSTRING}, "+GMR\r"}, /* get version */
@@ -190,8 +186,8 @@ struct reply_t gigaset_tab_nocid_m10x[]= /* with dle mode */
{RSP_ERROR, 108,108, -1, 0, 0, {ACT_FAILINIT}},
{EV_TIMEOUT, 108,108, -1, 105, 2, {ACT_SETDLE0,
- ACT_HUPMODEM,
- ACT_TIMEOUT}}, /* still timeout => connection in unimodem mode? */
+ ACT_HUPMODEM,
+ ACT_TIMEOUT}}, /* still timeout => connection in unimodem mode? */
{EV_TIMEOUT, 105,105, -1, 103, 5, {0}, "Z\r"},
{RSP_ERROR, 102,102, -1, 107, 5, {0}, "^GETPRE\r"}, /* ERROR on ATZ => maybe in config mode? */
@@ -377,6 +373,9 @@ struct reply_t gigaset_tab_cid_m10x[] = /* for M10x */
{EV_TIMEOUT, 750,750, -1, 0, 0, {ACT_CONNTIMEOUT}},
+ /* B channel closed (general case) */
+ {EV_BC_CLOSED, -1, -1, -1, -1,-1, {ACT_NOTIFY_BC_DOWN}}, //FIXME
+
/* misc. */
{EV_PROTO_L2, -1, -1, -1, -1,-1, {ACT_PROTO_L2}}, //FIXME
@@ -393,7 +392,7 @@ struct reply_t gigaset_tab_cid_m10x[] = /* for M10x */
#if 0
-static struct reply_t tab_nocid[]= /* no dle mode */ //FIXME aenderungen uebernehmen
+static struct reply_t tab_nocid[]= /* no dle mode */ //FIXME
{
/* resp_code, min_ConState, max_ConState, parameter, new_ConState, timeout, action, command */
@@ -401,7 +400,7 @@ static struct reply_t tab_nocid[]= /* no dle mode */ //FIXME aenderungen ueberne
{RSP_LAST,0,0,0,0,0,0}
};
-static struct reply_t tab_cid[] = /* no dle mode */ //FIXME aenderungen uebernehmen
+static struct reply_t tab_cid[] = /* no dle mode */ //FIXME
{
/* resp_code, min_ConState, max_ConState, parameter, new_ConState, timeout, action, command */
@@ -412,30 +411,30 @@ static struct reply_t tab_cid[] = /* no dle mode */ //FIXME aenderungen ueberneh
static struct resp_type_t resp_type[]=
{
- /*{"", RSP_EMPTY, RT_NOTHING},*/
- {"OK", RSP_OK, RT_NOTHING},
- {"ERROR", RSP_ERROR, RT_NOTHING},
- {"ZSAU", RSP_ZSAU, RT_ZSAU},
- {"ZCAU", RSP_ZCAU, RT_ZCAU},
- {"RING", RSP_RING, RT_RING},
- {"ZGCI", RSP_ZGCI, RT_NUMBER},
- {"ZVLS", RSP_ZVLS, RT_NUMBER},
- {"ZCTP", RSP_ZCTP, RT_NUMBER},
- {"ZDLE", RSP_ZDLE, RT_NUMBER},
- {"ZCFGT", RSP_ZCFGT, RT_NUMBER},
- {"ZCCR", RSP_ZCCR, RT_NUMBER},
- {"ZMWI", RSP_ZMWI, RT_NUMBER},
- {"ZHLC", RSP_ZHLC, RT_STRING},
- {"ZBC", RSP_ZBC, RT_STRING},
- {"NMBR", RSP_NMBR, RT_STRING},
- {"ZCPN", RSP_ZCPN, RT_STRING},
- {"ZCON", RSP_ZCON, RT_STRING},
- {"ZAOC", RSP_ZAOC, RT_STRING},
- {"ZCSTR", RSP_ZCSTR, RT_STRING},
- {"ZCFG", RSP_ZCFG, RT_HEX},
- {"ZLOG", RSP_ZLOG, RT_NOTHING},
- {"ZABINFO", RSP_ZABINFO, RT_NOTHING},
- {"ZSMLSTCHG", RSP_ZSMLSTCHG, RT_NOTHING},
+ /*{"", RSP_EMPTY, RT_NOTHING},*/
+ {"OK", RSP_OK, RT_NOTHING},
+ {"ERROR", RSP_ERROR, RT_NOTHING},
+ {"ZSAU", RSP_ZSAU, RT_ZSAU},
+ {"ZCAU", RSP_ZCAU, RT_ZCAU},
+ {"RING", RSP_RING, RT_RING},
+ {"ZGCI", RSP_ZGCI, RT_NUMBER},
+ {"ZVLS", RSP_ZVLS, RT_NUMBER},
+ {"ZCTP", RSP_ZCTP, RT_NUMBER},
+ {"ZDLE", RSP_ZDLE, RT_NUMBER},
+ {"ZCFGT", RSP_ZCFGT, RT_NUMBER},
+ {"ZCCR", RSP_ZCCR, RT_NUMBER},
+ {"ZMWI", RSP_ZMWI, RT_NUMBER},
+ {"ZHLC", RSP_ZHLC, RT_STRING},
+ {"ZBC", RSP_ZBC, RT_STRING},
+ {"NMBR", RSP_NMBR, RT_STRING},
+ {"ZCPN", RSP_ZCPN, RT_STRING},
+ {"ZCON", RSP_ZCON, RT_STRING},
+ {"ZAOC", RSP_ZAOC, RT_STRING},
+ {"ZCSTR", RSP_ZCSTR, RT_STRING},
+ {"ZCFG", RSP_ZCFG, RT_HEX},
+ {"ZLOG", RSP_ZLOG, RT_NOTHING},
+ {"ZABINFO", RSP_ZABINFO, RT_NOTHING},
+ {"ZSMLSTCHG", RSP_ZSMLSTCHG, RT_NOTHING},
{NULL,0,0}
};
@@ -446,9 +445,7 @@ static int isdn_getnum(char *p)
{
int v = -1;
- IFNULLRETVAL(p, -1);
-
- dbg(DEBUG_TRANSCMD, "string: %s", p);
+ gig_dbg(DEBUG_TRANSCMD, "string: %s", p);
while (*p >= '0' && *p <= '9')
v = ((v < 0) ? 0 : (v * 10)) + (int) ((*p++) - '0');
@@ -465,9 +462,7 @@ static int isdn_gethex(char *p)
int v = 0;
int c;
- IFNULLRETVAL(p, -1);
-
- dbg(DEBUG_TRANSCMD, "string: %s", p);
+ gig_dbg(DEBUG_TRANSCMD, "string: %s", p);
if (!*p)
return -1;
@@ -490,14 +485,6 @@ static int isdn_gethex(char *p)
return v;
}
-static inline void new_index(atomic_t *index, int max)
-{
- if (atomic_read(index) == max) //FIXME race?
- atomic_set(index, 0);
- else
- atomic_inc(index);
-}
-
/* retrieve CID from parsed response
* returns 0 if no CID, -1 if invalid CID, or CID value 1..65535
*/
@@ -536,16 +523,14 @@ void gigaset_handle_modem_response(struct cardstate *cs)
int cid;
int rawstring;
- IFNULLRET(cs);
-
len = cs->cbytes;
if (!len) {
/* ignore additional LFs/CRs (M10x config mode or cx100) */
- dbg(DEBUG_MCMD, "skipped EOL [%02X]", cs->respdata[len]);
+ gig_dbg(DEBUG_MCMD, "skipped EOL [%02X]", cs->respdata[len]);
return;
}
cs->respdata[len] = 0;
- dbg(DEBUG_TRANSCMD, "raw string: '%s'", cs->respdata);
+ gig_dbg(DEBUG_TRANSCMD, "raw string: '%s'", cs->respdata);
argv[0] = cs->respdata;
params = 1;
if (cs->at_state.getstring) {
@@ -561,7 +546,8 @@ void gigaset_handle_modem_response(struct cardstate *cs)
case ',':
case '=':
if (params > MAX_REC_PARAMS) {
- warn("too many parameters in response");
+ dev_warn(cs->dev,
+ "too many parameters in response\n");
/* need last parameter (might be CID) */
params--;
}
@@ -572,33 +558,33 @@ void gigaset_handle_modem_response(struct cardstate *cs)
cid = params > 1 ? cid_of_response(argv[params-1]) : 0;
if (cid < 0) {
gigaset_add_event(cs, &cs->at_state, RSP_INVAL,
- NULL, 0, NULL);
+ NULL, 0, NULL);
return;
}
for (j = 1; j < params; ++j)
argv[j][-1] = 0;
- dbg(DEBUG_TRANSCMD, "CMD received: %s", argv[0]);
+ gig_dbg(DEBUG_TRANSCMD, "CMD received: %s", argv[0]);
if (cid) {
--params;
- dbg(DEBUG_TRANSCMD, "CID: %s", argv[params]);
+ gig_dbg(DEBUG_TRANSCMD, "CID: %s", argv[params]);
}
- dbg(DEBUG_TRANSCMD, "available params: %d", params - 1);
+ gig_dbg(DEBUG_TRANSCMD, "available params: %d", params - 1);
for (j = 1; j < params; j++)
- dbg(DEBUG_TRANSCMD, "param %d: %s", j, argv[j]);
+ gig_dbg(DEBUG_TRANSCMD, "param %d: %s", j, argv[j]);
}
spin_lock_irqsave(&cs->ev_lock, flags);
- head = atomic_read(&cs->ev_head);
- tail = atomic_read(&cs->ev_tail);
+ head = cs->ev_head;
+ tail = cs->ev_tail;
abort = 1;
curarg = 0;
while (curarg < params) {
next = (tail + 1) % MAX_EVENTS;
if (unlikely(next == head)) {
- err("event queue full");
+ dev_err(cs->dev, "event queue full\n");
break;
}
@@ -619,8 +605,9 @@ void gigaset_handle_modem_response(struct cardstate *cs)
if (!rt->response) {
event->type = RSP_UNKNOWN;
- warn("unknown modem response: %s",
- argv[curarg]);
+ dev_warn(cs->dev,
+ "unknown modem response: %s\n",
+ argv[curarg]);
break;
}
@@ -636,7 +623,8 @@ void gigaset_handle_modem_response(struct cardstate *cs)
break;
case RT_RING:
if (!cid) {
- err("received RING without CID!");
+ dev_err(cs->dev,
+ "received RING without CID!\n");
event->type = RSP_INVAL;
abort = 1;
} else {
@@ -664,27 +652,25 @@ void gigaset_handle_modem_response(struct cardstate *cs)
event->parameter = ZSAU_DISCONNECT_REQ;
else {
event->parameter = ZSAU_UNKNOWN;
- warn("%s: unknown parameter %s after ZSAU",
- __func__, argv[curarg]);
+ dev_warn(cs->dev,
+ "%s: unknown parameter %s after ZSAU\n",
+ __func__, argv[curarg]);
}
++curarg;
break;
case RT_STRING:
if (curarg < params) {
- len = strlen(argv[curarg]) + 1;
- event->ptr = kmalloc(len, GFP_ATOMIC);
- if (event->ptr)
- memcpy(event->ptr, argv[curarg], len);
- else
- err("no memory for string!");
+ event->ptr = kstrdup(argv[curarg], GFP_ATOMIC);
+ if (!event->ptr)
+ dev_err(cs->dev, "out of memory\n");
++curarg;
}
#ifdef CONFIG_GIGASET_DEBUG
if (!event->ptr)
- dbg(DEBUG_CMD, "string==NULL");
+ gig_dbg(DEBUG_CMD, "string==NULL");
else
- dbg(DEBUG_CMD,
- "string==%s", (char *) event->ptr);
+ gig_dbg(DEBUG_CMD, "string==%s",
+ (char *) event->ptr);
#endif
break;
case RT_ZCAU:
@@ -694,7 +680,7 @@ void gigaset_handle_modem_response(struct cardstate *cs)
j = isdn_gethex(argv[curarg + 1]);
if (i >= 0 && i < 256 && j >= 0 && j < 256)
event->parameter = (unsigned) i << 8
- | j;
+ | j;
curarg += 2;
} else
curarg = params - 1;
@@ -712,7 +698,7 @@ void gigaset_handle_modem_response(struct cardstate *cs)
} else
event->parameter = -1;
#ifdef CONFIG_GIGASET_DEBUG
- dbg(DEBUG_CMD, "parameter==%d", event->parameter);
+ gig_dbg(DEBUG_CMD, "parameter==%d", event->parameter);
#endif
break;
}
@@ -724,12 +710,13 @@ void gigaset_handle_modem_response(struct cardstate *cs)
break;
}
- atomic_set(&cs->ev_tail, tail);
+ cs->ev_tail = tail;
spin_unlock_irqrestore(&cs->ev_lock, flags);
if (curarg != params)
- dbg(DEBUG_ANY, "invalid number of processed parameters: %d/%d",
- curarg, params);
+ gig_dbg(DEBUG_ANY,
+ "invalid number of processed parameters: %d/%d",
+ curarg, params);
}
EXPORT_SYMBOL_GPL(gigaset_handle_modem_response);
@@ -739,23 +726,19 @@ EXPORT_SYMBOL_GPL(gigaset_handle_modem_response);
static void disconnect(struct at_state_t **at_state_p)
{
unsigned long flags;
- struct bc_state *bcs;
- struct cardstate *cs;
-
- IFNULLRET(at_state_p);
- IFNULLRET(*at_state_p);
- bcs = (*at_state_p)->bcs;
- cs = (*at_state_p)->cs;
- IFNULLRET(cs);
+ struct bc_state *bcs = (*at_state_p)->bcs;
+ struct cardstate *cs = (*at_state_p)->cs;
- new_index(&(*at_state_p)->seq_index, MAX_SEQ_INDEX);
+ spin_lock_irqsave(&cs->lock, flags);
+ ++(*at_state_p)->seq_index;
/* revert to selected idle mode */
- if (!atomic_read(&cs->cidmode)) {
+ if (!cs->cidmode) {
cs->at_state.pending_commands |= PC_UMMODE;
atomic_set(&cs->commands_pending, 1); //FIXME
- dbg(DEBUG_CMD, "Scheduling PC_UMMODE");
+ gig_dbg(DEBUG_CMD, "Scheduling PC_UMMODE");
}
+ spin_unlock_irqrestore(&cs->lock, flags);
if (bcs) {
/* B channel assigned: invoke hardware specific handler */
@@ -777,7 +760,7 @@ static void disconnect(struct at_state_t **at_state_p)
* The structure should be freed by calling disconnect() after use.
*/
static inline struct at_state_t *get_free_channel(struct cardstate *cs,
- int cid)
+ int cid)
/* cids: >0: siemens-cid
0: without cid
-1: no cid assigned yet
@@ -826,7 +809,7 @@ static void init_failed(struct cardstate *cs, int mode)
static void schedule_init(struct cardstate *cs, int state)
{
if (cs->at_state.pending_commands & PC_INIT) {
- dbg(DEBUG_CMD, "not scheduling PC_INIT again");
+ gig_dbg(DEBUG_CMD, "not scheduling PC_INIT again");
return;
}
atomic_set(&cs->mstate, state);
@@ -834,52 +817,56 @@ static void schedule_init(struct cardstate *cs, int state)
gigaset_block_channels(cs);
cs->at_state.pending_commands |= PC_INIT;
atomic_set(&cs->commands_pending, 1);
- dbg(DEBUG_CMD, "Scheduling PC_INIT");
+ gig_dbg(DEBUG_CMD, "Scheduling PC_INIT");
}
-/* Add "AT" to a command, add the cid, dle encode it, send the result to the hardware. */
+/* Add "AT" to a command, add the cid, dle encode it, send the result to the
+ hardware. */
static void send_command(struct cardstate *cs, const char *cmd, int cid,
- int dle, gfp_t kmallocflags)
+ int dle, gfp_t kmallocflags)
{
size_t cmdlen, buflen;
char *cmdpos, *cmdbuf, *cmdtail;
cmdlen = strlen(cmd);
buflen = 11 + cmdlen;
+ if (unlikely(buflen <= cmdlen)) {
+ dev_err(cs->dev, "integer overflow in buflen\n");
+ return;
+ }
- if (likely(buflen > cmdlen)) {
- cmdbuf = kmalloc(buflen, kmallocflags);
- if (likely(cmdbuf != NULL)) {
- cmdpos = cmdbuf + 9;
- cmdtail = cmdpos + cmdlen;
- memcpy(cmdpos, cmd, cmdlen);
-
- if (cid > 0 && cid <= 65535) {
- do {
- *--cmdpos = '0' + cid % 10;
- cid /= 10;
- ++cmdlen;
- } while (cid);
- }
+ cmdbuf = kmalloc(buflen, kmallocflags);
+ if (unlikely(!cmdbuf)) {
+ dev_err(cs->dev, "out of memory\n");
+ return;
+ }
- cmdlen += 2;
- *--cmdpos = 'T';
- *--cmdpos = 'A';
+ cmdpos = cmdbuf + 9;
+ cmdtail = cmdpos + cmdlen;
+ memcpy(cmdpos, cmd, cmdlen);
- if (dle) {
- cmdlen += 4;
- *--cmdpos = '(';
- *--cmdpos = 0x10;
- *cmdtail++ = 0x10;
- *cmdtail++ = ')';
- }
+ if (cid > 0 && cid <= 65535) {
+ do {
+ *--cmdpos = '0' + cid % 10;
+ cid /= 10;
+ ++cmdlen;
+ } while (cid);
+ }
- cs->ops->write_cmd(cs, cmdpos, cmdlen, NULL);
- kfree(cmdbuf);
- } else
- err("no memory for command buffer");
- } else
- err("overflow in buflen");
+ cmdlen += 2;
+ *--cmdpos = 'T';
+ *--cmdpos = 'A';
+
+ if (dle) {
+ cmdlen += 4;
+ *--cmdpos = '(';
+ *--cmdpos = 0x10;
+ *cmdtail++ = 0x10;
+ *cmdtail++ = ')';
+ }
+
+ cs->ops->write_cmd(cs, cmdpos, cmdlen, NULL);
+ kfree(cmdbuf);
}
static struct at_state_t *at_state_from_cid(struct cardstate *cs, int cid)
@@ -910,9 +897,6 @@ static struct at_state_t *at_state_from_cid(struct cardstate *cs, int cid)
static void bchannel_down(struct bc_state *bcs)
{
- IFNULLRET(bcs);
- IFNULLRET(bcs->cs);
-
if (bcs->chstate & CHS_B_UP) {
bcs->chstate &= ~CHS_B_UP;
gigaset_i4l_channel_cmd(bcs, ISDN_STAT_BHUP);
@@ -930,16 +914,15 @@ static void bchannel_down(struct bc_state *bcs)
static void bchannel_up(struct bc_state *bcs)
{
- IFNULLRET(bcs);
-
if (!(bcs->chstate & CHS_D_UP)) {
- notice("%s: D channel not up", __func__);
+ dev_notice(bcs->cs->dev, "%s: D channel not up\n", __func__);
bcs->chstate |= CHS_D_UP;
gigaset_i4l_channel_cmd(bcs, ISDN_STAT_DCONN);
}
if (bcs->chstate & CHS_B_UP) {
- notice("%s: B channel already up", __func__);
+ dev_notice(bcs->cs->dev, "%s: B channel already up\n",
+ __func__);
return;
}
@@ -947,17 +930,21 @@ static void bchannel_up(struct bc_state *bcs)
gigaset_i4l_channel_cmd(bcs, ISDN_STAT_BCONN);
}
-static void start_dial(struct at_state_t *at_state, void *data, int seq_index)
+static void start_dial(struct at_state_t *at_state, void *data, unsigned seq_index)
{
struct bc_state *bcs = at_state->bcs;
struct cardstate *cs = at_state->cs;
int retval;
+ unsigned long flags;
bcs->chstate |= CHS_NOTIFY_LL;
- //atomic_set(&bcs->status, BCS_INIT);
- if (atomic_read(&at_state->seq_index) != seq_index)
+ spin_lock_irqsave(&cs->lock, flags);
+ if (at_state->seq_index != seq_index) {
+ spin_unlock_irqrestore(&cs->lock, flags);
goto error;
+ }
+ spin_unlock_irqrestore(&cs->lock, flags);
retval = gigaset_isdn_setup_dial(at_state, data);
if (retval != 0)
@@ -965,20 +952,14 @@ static void start_dial(struct at_state_t *at_state, void *data, int seq_index)
at_state->pending_commands |= PC_CID;
- dbg(DEBUG_CMD, "Scheduling PC_CID");
-//#ifdef GIG_MAYINITONDIAL
-// if (atomic_read(&cs->MState) == MS_UNKNOWN) {
-// cs->at_state.pending_commands |= PC_INIT;
-// dbg(DEBUG_CMD, "Scheduling PC_INIT");
-// }
-//#endif
- atomic_set(&cs->commands_pending, 1); //FIXME
+ gig_dbg(DEBUG_CMD, "Scheduling PC_CID");
+ atomic_set(&cs->commands_pending, 1);
return;
error:
at_state->pending_commands |= PC_NOCID;
- dbg(DEBUG_CMD, "Scheduling PC_NOCID");
- atomic_set(&cs->commands_pending, 1); //FIXME
+ gig_dbg(DEBUG_CMD, "Scheduling PC_NOCID");
+ atomic_set(&cs->commands_pending, 1);
return;
}
@@ -991,13 +972,13 @@ static void start_accept(struct at_state_t *at_state)
if (retval == 0) {
at_state->pending_commands |= PC_ACCEPT;
- dbg(DEBUG_CMD, "Scheduling PC_ACCEPT");
- atomic_set(&cs->commands_pending, 1); //FIXME
+ gig_dbg(DEBUG_CMD, "Scheduling PC_ACCEPT");
+ atomic_set(&cs->commands_pending, 1);
} else {
//FIXME
at_state->pending_commands |= PC_HUP;
- dbg(DEBUG_CMD, "Scheduling PC_HUP");
- atomic_set(&cs->commands_pending, 1); //FIXME
+ gig_dbg(DEBUG_CMD, "Scheduling PC_HUP");
+ atomic_set(&cs->commands_pending, 1);
}
}
@@ -1008,9 +989,10 @@ static void do_start(struct cardstate *cs)
if (atomic_read(&cs->mstate) != MS_LOCKED)
schedule_init(cs, MS_INIT);
+ cs->isdn_up = 1;
gigaset_i4l_cmd(cs, ISDN_STAT_RUN);
- // FIXME: not in locked mode
- // FIXME 2: only after init sequence
+ // FIXME: not in locked mode
+ // FIXME 2: only after init sequence
cs->waiting = 0;
wake_up(&cs->waitqueue);
@@ -1023,6 +1005,12 @@ static void finish_shutdown(struct cardstate *cs)
atomic_set(&cs->mode, M_UNKNOWN);
}
+ /* Tell the LL that the device is not available .. */
+ if (cs->isdn_up) {
+ cs->isdn_up = 0;
+ gigaset_i4l_cmd(cs, ISDN_STAT_STOP);
+ }
+
/* The rest is done by cleanup_cs () in user mode. */
cs->cmd_result = -ENODEV;
@@ -1037,15 +1025,20 @@ static void do_shutdown(struct cardstate *cs)
if (atomic_read(&cs->mstate) == MS_READY) {
atomic_set(&cs->mstate, MS_SHUTDOWN);
cs->at_state.pending_commands |= PC_SHUTDOWN;
- atomic_set(&cs->commands_pending, 1); //FIXME
- dbg(DEBUG_CMD, "Scheduling PC_SHUTDOWN"); //FIXME
- //gigaset_schedule_event(cs); //FIXME
+ atomic_set(&cs->commands_pending, 1);
+ gig_dbg(DEBUG_CMD, "Scheduling PC_SHUTDOWN");
} else
finish_shutdown(cs);
}
static void do_stop(struct cardstate *cs)
{
+ unsigned long flags;
+
+ spin_lock_irqsave(&cs->lock, flags);
+ cs->connected = 0;
+ spin_unlock_irqrestore(&cs->lock, flags);
+
do_shutdown(cs);
}
@@ -1069,9 +1062,11 @@ static int reinit_and_retry(struct cardstate *cs, int channel)
return 0;
if (channel < 0)
- warn("Could not enter cid mode. Reinit device and try again.");
+ dev_warn(cs->dev,
+ "Could not enter cid mode. Reinit device and try again.\n");
else {
- warn("Could not get a call id. Reinit device and try again.");
+ dev_warn(cs->dev,
+ "Could not get a call id. Reinit device and try again.\n");
cs->bcs[channel].at_state.pending_commands |= PC_CID;
}
schedule_init(cs, MS_INIT);
@@ -1079,7 +1074,7 @@ static int reinit_and_retry(struct cardstate *cs, int channel)
}
static int at_state_invalid(struct cardstate *cs,
- struct at_state_t *test_ptr)
+ struct at_state_t *test_ptr)
{
unsigned long flags;
unsigned channel;
@@ -1116,7 +1111,7 @@ static void handle_icall(struct cardstate *cs, struct bc_state *bcs,
case ICALL_ACCEPT:
break;
default:
- err("internal error: disposition=%d", retval);
+ dev_err(cs->dev, "internal error: disposition=%d\n", retval);
/* --v-- fall through --v-- */
case ICALL_IGNORE:
case ICALL_REJECT:
@@ -1160,7 +1155,6 @@ static int do_lock(struct cardstate *cs)
mode = atomic_read(&cs->mode);
atomic_set(&cs->mstate, MS_LOCKED);
atomic_set(&cs->mode, M_UNKNOWN);
- //FIXME reset card state / at states / bcs states
return mode;
}
@@ -1173,8 +1167,7 @@ static int do_unlock(struct cardstate *cs)
atomic_set(&cs->mstate, MS_UNINITIALIZED);
atomic_set(&cs->mode, M_UNKNOWN);
gigaset_free_channels(cs);
- //FIXME reset card state / at states / bcs states
- if (atomic_read(&cs->connected))
+ if (cs->connected)
schedule_init(cs, MS_INIT);
return 0;
@@ -1203,21 +1196,23 @@ static void do_action(int action, struct cardstate *cs,
at_state->waiting = 1;
break;
case ACT_INIT:
- //FIXME setup everything
cs->at_state.pending_commands &= ~PC_INIT;
cs->cur_at_seq = SEQ_NONE;
atomic_set(&cs->mode, M_UNIMODEM);
- if (!atomic_read(&cs->cidmode)) {
+ spin_lock_irqsave(&cs->lock, flags);
+ if (!cs->cidmode) {
+ spin_unlock_irqrestore(&cs->lock, flags);
gigaset_free_channels(cs);
atomic_set(&cs->mstate, MS_READY);
break;
}
+ spin_unlock_irqrestore(&cs->lock, flags);
cs->at_state.pending_commands |= PC_CIDMODE;
- atomic_set(&cs->commands_pending, 1); //FIXME
- dbg(DEBUG_CMD, "Scheduling PC_CIDMODE");
+ atomic_set(&cs->commands_pending, 1);
+ gig_dbg(DEBUG_CMD, "Scheduling PC_CIDMODE");
break;
case ACT_FAILINIT:
- warn("Could not initialize the device.");
+ dev_warn(cs->dev, "Could not initialize the device.\n");
cs->dle = 0;
init_failed(cs, M_UNKNOWN);
cs->cur_at_seq = SEQ_NONE;
@@ -1273,8 +1268,8 @@ static void do_action(int action, struct cardstate *cs,
/* get fresh AT state structure for new CID */
at_state2 = get_free_channel(cs, ev->parameter);
if (!at_state2) {
- warn("RING ignored: "
- "could not allocate channel structure");
+ dev_warn(cs->dev,
+ "RING ignored: could not allocate channel structure\n");
break;
}
@@ -1302,7 +1297,7 @@ static void do_action(int action, struct cardstate *cs,
at_state = *p_at_state;
break;
case ACT_FAILSDOWN:
- warn("Could not shut down the device.");
+ dev_warn(cs->dev, "Could not shut down the device.\n");
/* fall through */
case ACT_FAKESDOWN:
case ACT_SDOWN:
@@ -1355,7 +1350,7 @@ static void do_action(int action, struct cardstate *cs,
break;
case ACT_ABORTHUP:
cs->cur_at_seq = SEQ_NONE;
- warn("Could not hang up.");
+ dev_warn(cs->dev, "Could not hang up.\n");
at_state->cid = -1;
if (bcs && cs->onechannel)
at_state->pending_commands |= PC_DLE0;
@@ -1367,14 +1362,15 @@ static void do_action(int action, struct cardstate *cs,
break;
case ACT_FAILDLE0:
cs->cur_at_seq = SEQ_NONE;
- warn("Could not leave DLE mode.");
+ dev_warn(cs->dev, "Could not leave DLE mode.\n");
at_state2 = &cs->bcs[cs->curchannel].at_state;
disconnect(&at_state2);
schedule_init(cs, MS_RECOVER);
break;
case ACT_FAILDLE1:
cs->cur_at_seq = SEQ_NONE;
- warn("Could not enter DLE mode. Try to hang up.");
+ dev_warn(cs->dev,
+ "Could not enter DLE mode. Trying to hang up.\n");
channel = cs->curchannel;
cs->bcs[channel].at_state.pending_commands |= PC_HUP;
atomic_set(&cs->commands_pending, 1);
@@ -1395,7 +1391,8 @@ static void do_action(int action, struct cardstate *cs,
cs->cur_at_seq = SEQ_NONE;
channel = cs->curchannel;
if (!reinit_and_retry(cs, channel)) {
- warn("Could not get a call id. Dialing not possible");
+ dev_warn(cs->dev,
+ "Could not get a call ID. Cannot dial.\n");
at_state2 = &cs->bcs[channel].at_state;
disconnect(&at_state2);
}
@@ -1428,7 +1425,8 @@ static void do_action(int action, struct cardstate *cs,
at_state->pending_commands |= PC_HUP;
atomic_set(&cs->commands_pending, 1);
break;
- case ACT_GETSTRING: /* warning: RING, ZDLE, ... are not handled properly any more */
+ case ACT_GETSTRING: /* warning: RING, ZDLE, ...
+ are not handled properly anymore */
at_state->getstring = 1;
break;
case ACT_SETVER:
@@ -1469,16 +1467,16 @@ static void do_action(int action, struct cardstate *cs,
case ACT_GOTVER:
if (cs->gotfwver == 0) {
cs->gotfwver = 1;
- dbg(DEBUG_ANY,
- "firmware version %02d.%03d.%02d.%02d",
- cs->fwver[0], cs->fwver[1],
- cs->fwver[2], cs->fwver[3]);
+ gig_dbg(DEBUG_ANY,
+ "firmware version %02d.%03d.%02d.%02d",
+ cs->fwver[0], cs->fwver[1],
+ cs->fwver[2], cs->fwver[3]);
break;
}
/* fall through */
case ACT_FAILVER:
cs->gotfwver = -1;
- err("could not read firmware version.");
+ dev_err(cs->dev, "could not read firmware version.\n");
break;
#ifdef CONFIG_GIGASET_DEBUG
case ACT_ERROR:
@@ -1496,16 +1494,16 @@ static void do_action(int action, struct cardstate *cs,
break;
#endif
case ACT_DEBUG:
- dbg(DEBUG_ANY, "%s: resp_code %d in ConState %d",
+ gig_dbg(DEBUG_ANY, "%s: resp_code %d in ConState %d",
__func__, ev->type, at_state->ConState);
break;
case ACT_WARN:
- warn("%s: resp_code %d in ConState %d!",
- __func__, ev->type, at_state->ConState);
+ dev_warn(cs->dev, "%s: resp_code %d in ConState %d!\n",
+ __func__, ev->type, at_state->ConState);
break;
case ACT_ZCAU:
- warn("cause code %04x in connection state %d.",
- ev->parameter, at_state->ConState);
+ dev_warn(cs->dev, "cause code %04x in connection state %d.\n",
+ ev->parameter, at_state->ConState);
break;
/* events from the LL */
@@ -1516,14 +1514,14 @@ static void do_action(int action, struct cardstate *cs,
start_accept(at_state);
break;
case ACT_PROTO_L2:
- dbg(DEBUG_CMD,
- "set protocol to %u", (unsigned) ev->parameter);
+ gig_dbg(DEBUG_CMD, "set protocol to %u",
+ (unsigned) ev->parameter);
at_state->bcs->proto2 = ev->parameter;
break;
case ACT_HUP:
at_state->pending_commands |= PC_HUP;
- atomic_set(&cs->commands_pending, 1); //FIXME
- dbg(DEBUG_CMD, "Scheduling PC_HUP");
+ atomic_set(&cs->commands_pending, 1);
+ gig_dbg(DEBUG_CMD, "Scheduling PC_HUP");
break;
/* hotplug events */
@@ -1555,17 +1553,19 @@ static void do_action(int action, struct cardstate *cs,
/* events from the proc file system */ // FIXME without ACT_xxxx?
case ACT_PROC_CIDMODE:
- if (ev->parameter != atomic_read(&cs->cidmode)) {
- atomic_set(&cs->cidmode, ev->parameter);
+ spin_lock_irqsave(&cs->lock, flags);
+ if (ev->parameter != cs->cidmode) {
+ cs->cidmode = ev->parameter;
if (ev->parameter) {
cs->at_state.pending_commands |= PC_CIDMODE;
- dbg(DEBUG_CMD, "Scheduling PC_CIDMODE");
+ gig_dbg(DEBUG_CMD, "Scheduling PC_CIDMODE");
} else {
cs->at_state.pending_commands |= PC_UMMODE;
- dbg(DEBUG_CMD, "Scheduling PC_UMMODE");
+ gig_dbg(DEBUG_CMD, "Scheduling PC_UMMODE");
}
atomic_set(&cs->commands_pending, 1);
}
+ spin_unlock_irqrestore(&cs->lock, flags);
cs->waiting = 0;
wake_up(&cs->waitqueue);
break;
@@ -1590,7 +1590,7 @@ static void do_action(int action, struct cardstate *cs,
*p_resp_code = RSP_NULL;
}
} else
- err("%s: action==%d!", __func__, action);
+ dev_err(cs->dev, "%s: action==%d!\n", __func__, action);
}
}
@@ -1609,47 +1609,46 @@ static void process_event(struct cardstate *cs, struct event_t *ev)
int curact;
unsigned long flags;
- IFNULLRET(cs);
- IFNULLRET(ev);
-
if (ev->cid >= 0) {
at_state = at_state_from_cid(cs, ev->cid);
if (!at_state) {
gigaset_add_event(cs, &cs->at_state, RSP_WRONG_CID,
- NULL, 0, NULL);
+ NULL, 0, NULL);
return;
}
} else {
at_state = ev->at_state;
if (at_state_invalid(cs, at_state)) {
- dbg(DEBUG_ANY,
- "event for invalid at_state %p", at_state);
+ gig_dbg(DEBUG_ANY, "event for invalid at_state %p",
+ at_state);
return;
}
}
- dbg(DEBUG_CMD,
- "connection state %d, event %d", at_state->ConState, ev->type);
+ gig_dbg(DEBUG_CMD, "connection state %d, event %d",
+ at_state->ConState, ev->type);
bcs = at_state->bcs;
sendcid = at_state->cid;
/* Setting the pointer to the dial array */
rep = at_state->replystruct;
- IFNULLRET(rep);
+ spin_lock_irqsave(&cs->lock, flags);
if (ev->type == EV_TIMEOUT) {
- if (ev->parameter != atomic_read(&at_state->timer_index)
+ if (ev->parameter != at_state->timer_index
|| !at_state->timer_active) {
ev->type = RSP_NONE; /* old timeout */
- dbg(DEBUG_ANY, "old timeout");
+ gig_dbg(DEBUG_ANY, "old timeout");
} else if (!at_state->waiting)
- dbg(DEBUG_ANY, "timeout occured");
+ gig_dbg(DEBUG_ANY, "timeout occurred");
else
- dbg(DEBUG_ANY, "stopped waiting");
+ gig_dbg(DEBUG_ANY, "stopped waiting");
}
+ spin_unlock_irqrestore(&cs->lock, flags);
- /* if the response belongs to a variable in at_state->int_var[VAR_XXXX] or at_state->str_var[STR_XXXX], set it */
+ /* if the response belongs to a variable in at_state->int_var[VAR_XXXX]
+ or at_state->str_var[STR_XXXX], set it */
if (ev->type >= RSP_VAR && ev->type < RSP_VAR + VAR_NUM) {
index = ev->type - RSP_VAR;
at_state->int_var[index] = ev->parameter;
@@ -1657,20 +1656,22 @@ static void process_event(struct cardstate *cs, struct event_t *ev)
index = ev->type - RSP_STR;
kfree(at_state->str_var[index]);
at_state->str_var[index] = ev->ptr;
- ev->ptr = NULL; /* prevent process_events() from deallocating ptr */
+ ev->ptr = NULL; /* prevent process_events() from
+ deallocating ptr */
}
if (ev->type == EV_TIMEOUT || ev->type == RSP_STRING)
at_state->getstring = 0;
- /* Search row in dial array which matches modem response and current constate */
+ /* Search row in dial array which matches modem response and current
+ constate */
for (;; rep++) {
rcode = rep->resp_code;
- /* dbg (DEBUG_ANY, "rcode %d", rcode); */
if (rcode == RSP_LAST) {
/* found nothing...*/
- warn("%s: rcode=RSP_LAST: resp_code %d in ConState %d!",
- __func__, ev->type, at_state->ConState);
+ dev_warn(cs->dev, "%s: rcode=RSP_LAST: "
+ "resp_code %d in ConState %d!\n",
+ __func__, ev->type, at_state->ConState);
return;
}
if ((rcode == RSP_ANY || rcode == ev->type)
@@ -1706,14 +1707,14 @@ static void process_event(struct cardstate *cs, struct event_t *ev)
} else {
/* Send command to modem if not NULL... */
if (p_command/*rep->command*/) {
- if (atomic_read(&cs->connected))
+ if (cs->connected)
send_command(cs, p_command,
- sendcid, cs->dle,
- GFP_ATOMIC);
+ sendcid, cs->dle,
+ GFP_ATOMIC);
else
gigaset_add_event(cs, at_state,
- RSP_NODEV,
- NULL, 0, NULL);
+ RSP_NODEV,
+ NULL, 0, NULL);
}
spin_lock_irqsave(&cs->lock, flags);
@@ -1723,8 +1724,7 @@ static void process_event(struct cardstate *cs, struct event_t *ev)
} else if (rep->timeout > 0) { /* new timeout */
at_state->timer_expires = rep->timeout * 10;
at_state->timer_active = 1;
- new_index(&at_state->timer_index,
- MAX_TIMER_INDEX);
+ ++at_state->timer_index;
}
spin_unlock_irqrestore(&cs->lock, flags);
}
@@ -1744,17 +1744,16 @@ static void process_command_flags(struct cardstate *cs)
struct bc_state *bcs;
int i;
int sequence;
-
- IFNULLRET(cs);
+ unsigned long flags;
atomic_set(&cs->commands_pending, 0);
if (cs->cur_at_seq) {
- dbg(DEBUG_CMD, "not searching scheduled commands: busy");
+ gig_dbg(DEBUG_CMD, "not searching scheduled commands: busy");
return;
}
- dbg(DEBUG_CMD, "searching scheduled commands");
+ gig_dbg(DEBUG_CMD, "searching scheduled commands");
sequence = SEQ_NONE;
@@ -1795,8 +1794,9 @@ static void process_command_flags(struct cardstate *cs)
}
/* only switch back to unimodem mode, if no commands are pending and no channels are up */
+ spin_lock_irqsave(&cs->lock, flags);
if (cs->at_state.pending_commands == PC_UMMODE
- && !atomic_read(&cs->cidmode)
+ && !cs->cidmode
&& list_empty(&cs->temp_at_states)
&& atomic_read(&cs->mode) == M_CID) {
sequence = SEQ_UMMODE;
@@ -1810,6 +1810,7 @@ static void process_command_flags(struct cardstate *cs)
}
}
}
+ spin_unlock_irqrestore(&cs->lock, flags);
cs->at_state.pending_commands &= ~PC_UMMODE;
if (sequence != SEQ_NONE) {
schedule_sequence(cs, at_state, sequence);
@@ -1865,11 +1866,7 @@ static void process_command_flags(struct cardstate *cs)
if (cs->at_state.pending_commands & PC_CIDMODE) {
cs->at_state.pending_commands &= ~PC_CIDMODE;
if (atomic_read(&cs->mode) == M_UNIMODEM) {
-#if 0
- cs->retry_count = 2;
-#else
cs->retry_count = 1;
-#endif
schedule_sequence(cs, &cs->at_state, SEQ_CIDMODE);
return;
}
@@ -1897,7 +1894,7 @@ static void process_command_flags(struct cardstate *cs)
switch (atomic_read(&cs->mode)) {
case M_UNIMODEM:
cs->at_state.pending_commands |= PC_CIDMODE;
- dbg(DEBUG_CMD, "Scheduling PC_CIDMODE");
+ gig_dbg(DEBUG_CMD, "Scheduling PC_CIDMODE");
atomic_set(&cs->commands_pending, 1);
return;
#ifdef GIG_MAYINITONDIAL
@@ -1926,18 +1923,21 @@ static void process_events(struct cardstate *cs)
int i;
int check_flags = 0;
int was_busy;
+ unsigned long flags;
- /* no locking needed (only one reader) */
- head = atomic_read(&cs->ev_head);
+ spin_lock_irqsave(&cs->ev_lock, flags);
+ head = cs->ev_head;
for (i = 0; i < 2 * MAX_EVENTS; ++i) {
- tail = atomic_read(&cs->ev_tail);
+ tail = cs->ev_tail;
if (tail == head) {
if (!check_flags && !atomic_read(&cs->commands_pending))
break;
check_flags = 0;
+ spin_unlock_irqrestore(&cs->ev_lock, flags);
process_command_flags(cs);
- tail = atomic_read(&cs->ev_tail);
+ spin_lock_irqsave(&cs->ev_lock, flags);
+ tail = cs->ev_tail;
if (tail == head) {
if (!atomic_read(&cs->commands_pending))
break;
@@ -1947,18 +1947,23 @@ static void process_events(struct cardstate *cs)
ev = cs->events + head;
was_busy = cs->cur_at_seq != SEQ_NONE;
+ spin_unlock_irqrestore(&cs->ev_lock, flags);
process_event(cs, ev);
+ spin_lock_irqsave(&cs->ev_lock, flags);
kfree(ev->ptr);
ev->ptr = NULL;
if (was_busy && cs->cur_at_seq == SEQ_NONE)
check_flags = 1;
head = (head + 1) % MAX_EVENTS;
- atomic_set(&cs->ev_head, head);
+ cs->ev_head = head;
}
+ spin_unlock_irqrestore(&cs->ev_lock, flags);
+
if (i == 2 * MAX_EVENTS) {
- err("infinite loop in process_events; aborting.");
+ dev_err(cs->dev,
+ "infinite loop in process_events; aborting.\n");
}
}
@@ -1970,12 +1975,9 @@ void gigaset_handle_event(unsigned long data)
{
struct cardstate *cs = (struct cardstate *) data;
- IFNULLRET(cs);
- IFNULLRET(cs->inbuf);
-
/* handle incoming data on control/common channel */
if (atomic_read(&cs->inbuf->head) != atomic_read(&cs->inbuf->tail)) {
- dbg(DEBUG_INTR, "processing new data");
+ gig_dbg(DEBUG_INTR, "processing new data");
cs->ops->handle_input(cs->inbuf);
}
diff --git a/drivers/isdn/gigaset/gigaset.h b/drivers/isdn/gigaset/gigaset.h
index 729edcdb6da..22b9693f7c0 100644
--- a/drivers/isdn/gigaset/gigaset.h
+++ b/drivers/isdn/gigaset/gigaset.h
@@ -1,11 +1,16 @@
-/* Siemens Gigaset 307x driver
+/*
+ * Siemens Gigaset 307x driver
* Common header file for all connection variants
*
- * Written by Stefan Eilers <Eilers.Stefan@epost.de>
+ * Written by Stefan Eilers
* and Hansjoerg Lipp <hjlipp@web.de>
*
- * Version: $Id: gigaset.h,v 1.97.4.26 2006/02/04 18:28:16 hjlipp Exp $
- * ===========================================================================
+ * =====================================================================
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ * =====================================================================
*/
#ifndef GIGASET_H
@@ -15,7 +20,6 @@
#include <linux/kernel.h>
#include <linux/compiler.h>
#include <linux/types.h>
-#include <asm/atomic.h>
#include <linux/spinlock.h>
#include <linux/isdnif.h>
#include <linux/usb.h>
@@ -27,21 +31,22 @@
#include <linux/tty.h>
#include <linux/tty_driver.h>
#include <linux/list.h>
+#include <asm/atomic.h>
#define GIG_VERSION {0,5,0,0}
#define GIG_COMPAT {0,4,0,0}
-#define MAX_REC_PARAMS 10 /* Max. number of params in response string */
-#define MAX_RESP_SIZE 512 /* Max. size of a response string */
-#define HW_HDR_LEN 2 /* Header size used to store ack info */
+#define MAX_REC_PARAMS 10 /* Max. number of params in response string */
+#define MAX_RESP_SIZE 512 /* Max. size of a response string */
+#define HW_HDR_LEN 2 /* Header size used to store ack info */
-#define MAX_EVENTS 64 /* size of event queue */
+#define MAX_EVENTS 64 /* size of event queue */
#define RBUFSIZE 8192
-#define SBUFSIZE 4096 /* sk_buff payload size */
+#define SBUFSIZE 4096 /* sk_buff payload size */
-#define MAX_BUF_SIZE (SBUFSIZE - 2) /* Max. size of a data packet from LL */
-#define TRANSBUFSIZE 768 /* bytes per skb for transparent receive */
+#define TRANSBUFSIZE 768 /* bytes per skb for transparent receive */
+#define MAX_BUF_SIZE (SBUFSIZE - 2) /* Max. size of a data packet from LL */
/* compile time options */
#define GIG_MAJOR 0
@@ -50,10 +55,7 @@
#define GIG_RETRYCID
#define GIG_X75
-#define MAX_TIMER_INDEX 1000
-#define MAX_SEQ_INDEX 1000
-
-#define GIG_TICK (HZ / 10)
+#define GIG_TICK 100 /* in milliseconds */
/* timeout values (unit: 1 sec) */
#define INIT_TIMEOUT 1
@@ -67,74 +69,89 @@
#define MAXACT 3
-#define IFNULL(a) if (unlikely(!(a)))
-#define IFNULLRET(a) if (unlikely(!(a))) {err("%s==NULL at %s:%d!", #a, __FILE__, __LINE__); return; }
-#define IFNULLRETVAL(a,b) if (unlikely(!(a))) {err("%s==NULL at %s:%d!", #a, __FILE__, __LINE__); return (b); }
-#define IFNULLCONT(a) if (unlikely(!(a))) {err("%s==NULL at %s:%d!", #a, __FILE__, __LINE__); continue; }
-#define IFNULLGOTO(a,b) if (unlikely(!(a))) {err("%s==NULL at %s:%d!", #a, __FILE__, __LINE__); goto b; }
-
extern int gigaset_debuglevel; /* "needs" cast to (enum debuglevel) */
-/* any combination of these can be given with the 'debug=' parameter to insmod, e.g.
- * 'insmod usb_gigaset.o debug=0x2c' will set DEBUG_OPEN, DEBUG_CMD and DEBUG_INTR. */
-enum debuglevel { /* up to 24 bits (atomic_t) */
+/* any combination of these can be given with the 'debug=' parameter to insmod,
+ * e.g. 'insmod usb_gigaset.o debug=0x2c' will set DEBUG_OPEN, DEBUG_CMD and
+ * DEBUG_INTR.
+ */
+enum debuglevel {
DEBUG_REG = 0x0002, /* serial port I/O register operations */
DEBUG_OPEN = 0x0004, /* open/close serial port */
DEBUG_INTR = 0x0008, /* interrupt processing */
- DEBUG_INTR_DUMP = 0x0010, /* Activating hexdump debug output on interrupt
- requests, not available as run-time option */
+ DEBUG_INTR_DUMP = 0x0010, /* Activating hexdump debug output on
+ interrupt requests, not available as
+ run-time option */
DEBUG_CMD = 0x00020, /* sent/received LL commands */
DEBUG_STREAM = 0x00040, /* application data stream I/O events */
DEBUG_STREAM_DUMP = 0x00080, /* application data stream content */
DEBUG_LLDATA = 0x00100, /* sent/received LL data */
- DEBUG_INTR_0 = 0x00200, /* serial port output interrupt processing */
+ DEBUG_INTR_0 = 0x00200, /* serial port interrupt processing */
DEBUG_DRIVER = 0x00400, /* driver structure */
DEBUG_HDLC = 0x00800, /* M10x HDLC processing */
DEBUG_WRITE = 0x01000, /* M105 data write */
- DEBUG_TRANSCMD = 0x02000, /*AT-COMMANDS+RESPONSES*/
- DEBUG_MCMD = 0x04000, /*COMMANDS THAT ARE SENT VERY OFTEN*/
- DEBUG_INIT = 0x08000, /* (de)allocation+initialization of data structures */
+ DEBUG_TRANSCMD = 0x02000, /* AT-COMMANDS+RESPONSES */
+ DEBUG_MCMD = 0x04000, /* COMMANDS THAT ARE SENT VERY OFTEN */
+ DEBUG_INIT = 0x08000, /* (de)allocation+initialization of data
+ structures */
DEBUG_LOCK = 0x10000, /* semaphore operations */
DEBUG_OUTPUT = 0x20000, /* output to device */
- DEBUG_ISO = 0x40000, /* isochronous transfers */
+ DEBUG_ISO = 0x40000, /* isochronous transfers */
DEBUG_IF = 0x80000, /* character device operations */
- DEBUG_USBREQ = 0x100000, /* USB communication (except payload data) */
- DEBUG_LOCKCMD = 0x200000, /* AT commands and responses when MS_LOCKED */
+ DEBUG_USBREQ = 0x100000, /* USB communication (except payload
+ data) */
+ DEBUG_LOCKCMD = 0x200000, /* AT commands and responses when
+ MS_LOCKED */
- DEBUG_ANY = 0x3fffff, /* print message if any of the others is activated */
+ DEBUG_ANY = 0x3fffff, /* print message if any of the others is
+ activated */
};
-#ifdef CONFIG_GIGASET_DEBUG
-#define DEBUG_DEFAULT (DEBUG_INIT | DEBUG_TRANSCMD | DEBUG_CMD | DEBUG_USBREQ)
-//#define DEBUG_DEFAULT (DEBUG_LOCK | DEBUG_INIT | DEBUG_TRANSCMD | DEBUG_CMD | DEBUF_IF | DEBUG_DRIVER | DEBUG_OUTPUT | DEBUG_INTR)
-#else
-#define DEBUG_DEFAULT 0
+/* missing from linux/device.h ... */
+#ifndef dev_notice
+#define dev_notice(dev, format, arg...) \
+ dev_printk(KERN_NOTICE , dev , format , ## arg)
#endif
-/* redefine syslog macros to prepend module name instead of entire source path */
-/* The space before the comma in ", ##" is needed by gcc 2.95 */
+/* Kernel message macros for situations where dev_printk and friends cannot be
+ * used for lack of reliable access to a device structure.
+ * linux/usb.h already contains these but in an obsolete form which clutters
+ * the log needlessly, and according to the USB maintainer those should be
+ * removed rather than fixed anyway.
+ */
+#undef err
#undef info
-#define info(format, arg...) printk(KERN_INFO "%s: " format "\n", THIS_MODULE ? THIS_MODULE->name : "gigaset_hw" , ## arg)
-
-#undef notice
-#define notice(format, arg...) printk(KERN_NOTICE "%s: " format "\n", THIS_MODULE ? THIS_MODULE->name : "gigaset_hw" , ## arg)
-
#undef warn
-#define warn(format, arg...) printk(KERN_WARNING "%s: " format "\n", THIS_MODULE ? THIS_MODULE->name : "gigaset_hw" , ## arg)
+#undef notice
-#undef err
-#define err(format, arg...) printk(KERN_ERR "%s: " format "\n", THIS_MODULE ? THIS_MODULE->name : "gigaset_hw" , ## arg)
+#define err(format, arg...) printk(KERN_ERR KBUILD_MODNAME ": " \
+ format "\n" , ## arg)
+#define info(format, arg...) printk(KERN_INFO KBUILD_MODNAME ": " \
+ format "\n" , ## arg)
+#define warn(format, arg...) printk(KERN_WARNING KBUILD_MODNAME ": " \
+ format "\n" , ## arg)
+#define notice(format, arg...) printk(KERN_NOTICE KBUILD_MODNAME ": " \
+ format "\n" , ## arg)
-#undef dbg
#ifdef CONFIG_GIGASET_DEBUG
-#define dbg(level, format, arg...) do { if (unlikely(((enum debuglevel)gigaset_debuglevel) & (level))) \
- printk(KERN_DEBUG "%s: " format "\n", THIS_MODULE ? THIS_MODULE->name : "gigaset_hw" , ## arg); } while (0)
+
+#define gig_dbg(level, format, arg...) \
+ do { \
+ if (unlikely(((enum debuglevel)gigaset_debuglevel) & (level))) \
+ printk(KERN_DEBUG KBUILD_MODNAME ": " format "\n", \
+ ## arg); \
+ } while (0)
+#define DEBUG_DEFAULT (DEBUG_TRANSCMD | DEBUG_CMD | DEBUG_USBREQ)
+
#else
-#define dbg(level, format, arg...) do {} while (0)
+
+#define gig_dbg(level, format, arg...) do {} while (0)
+#define DEBUG_DEFAULT 0
+
#endif
void gigaset_dbg_buffer(enum debuglevel level, const unsigned char *msg,
- size_t len, const unsigned char *buf, int from_user);
+ size_t len, const unsigned char *buf);
/* connection state */
#define ZSAU_NONE 0
@@ -148,13 +165,14 @@ void gigaset_dbg_buffer(enum debuglevel level, const unsigned char *msg,
#define ZSAU_UNKNOWN -1
/* USB control transfer requests */
-#define OUT_VENDOR_REQ (USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT)
-#define IN_VENDOR_REQ (USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT)
+#define OUT_VENDOR_REQ (USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT)
+#define IN_VENDOR_REQ (USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT)
/* int-in-events 3070 */
#define HD_B1_FLOW_CONTROL 0x80
#define HD_B2_FLOW_CONTROL 0x81
-#define HD_RECEIVEATDATA_ACK (0x35) // 3070 // att: HD_RECEIVE>>AT<<DATA_ACK
+#define HD_RECEIVEATDATA_ACK (0x35) // 3070
+ // att: HD_RECEIVE>>AT<<DATA_ACK
#define HD_READY_SEND_ATDATA (0x36) // 3070
#define HD_OPEN_ATCHANNEL_ACK (0x37) // 3070
#define HD_CLOSE_ATCHANNEL_ACK (0x38) // 3070
@@ -181,17 +199,18 @@ void gigaset_dbg_buffer(enum debuglevel level, const unsigned char *msg,
#define HD_CLOSE_ATCHANNEL (0x29) // 3070
/* USB frames for isochronous transfer */
-#define BAS_FRAMETIME 1 /* number of milliseconds between frames */
-#define BAS_NUMFRAMES 8 /* number of frames per URB */
-#define BAS_MAXFRAME 16 /* allocated bytes per frame */
-#define BAS_NORMFRAME 8 /* send size without flow control */
-#define BAS_HIGHFRAME 10 /* " " with positive flow control */
-#define BAS_LOWFRAME 5 /* " " with negative flow control */
-#define BAS_CORRFRAMES 4 /* flow control multiplicator */
-
-#define BAS_INBUFSIZE (BAS_MAXFRAME * BAS_NUMFRAMES) /* size of isochronous input buffer per URB */
-#define BAS_OUTBUFSIZE 4096 /* size of common isochronous output buffer */
-#define BAS_OUTBUFPAD BAS_MAXFRAME /* size of pad area for isochronous output buffer */
+#define BAS_FRAMETIME 1 /* number of milliseconds between frames */
+#define BAS_NUMFRAMES 8 /* number of frames per URB */
+#define BAS_MAXFRAME 16 /* allocated bytes per frame */
+#define BAS_NORMFRAME 8 /* send size without flow control */
+#define BAS_HIGHFRAME 10 /* " " with positive flow control */
+#define BAS_LOWFRAME 5 /* " " with negative flow control */
+#define BAS_CORRFRAMES 4 /* flow control multiplicator */
+
+#define BAS_INBUFSIZE (BAS_MAXFRAME * BAS_NUMFRAMES)
+ /* size of isoc in buf per URB */
+#define BAS_OUTBUFSIZE 4096 /* size of common isoc out buffer */
+#define BAS_OUTBUFPAD BAS_MAXFRAME /* size of pad area for isoc out buf */
#define BAS_INURBS 3
#define BAS_OUTURBS 3
@@ -207,40 +226,40 @@ void gigaset_dbg_buffer(enum debuglevel level, const unsigned char *msg,
#define AT_NUM 7
/* variables in struct at_state_t */
-#define VAR_ZSAU 0
-#define VAR_ZDLE 1
-#define VAR_ZVLS 2
-#define VAR_ZCTP 3
-#define VAR_NUM 4
-
-#define STR_NMBR 0
-#define STR_ZCPN 1
-#define STR_ZCON 2
-#define STR_ZBC 3
-#define STR_ZHLC 4
-#define STR_NUM 5
-
-#define EV_TIMEOUT -105
-#define EV_IF_VER -106
-#define EV_PROC_CIDMODE -107
-#define EV_SHUTDOWN -108
-#define EV_START -110
-#define EV_STOP -111
-#define EV_IF_LOCK -112
-#define EV_PROTO_L2 -113
-#define EV_ACCEPT -114
-#define EV_DIAL -115
-#define EV_HUP -116
-#define EV_BC_OPEN -117
-#define EV_BC_CLOSED -118
+#define VAR_ZSAU 0
+#define VAR_ZDLE 1
+#define VAR_ZVLS 2
+#define VAR_ZCTP 3
+#define VAR_NUM 4
+
+#define STR_NMBR 0
+#define STR_ZCPN 1
+#define STR_ZCON 2
+#define STR_ZBC 3
+#define STR_ZHLC 4
+#define STR_NUM 5
+
+#define EV_TIMEOUT -105
+#define EV_IF_VER -106
+#define EV_PROC_CIDMODE -107
+#define EV_SHUTDOWN -108
+#define EV_START -110
+#define EV_STOP -111
+#define EV_IF_LOCK -112
+#define EV_PROTO_L2 -113
+#define EV_ACCEPT -114
+#define EV_DIAL -115
+#define EV_HUP -116
+#define EV_BC_OPEN -117
+#define EV_BC_CLOSED -118
/* input state */
-#define INS_command 0x0001
-#define INS_DLE_char 0x0002
-#define INS_byte_stuff 0x0004
-#define INS_have_data 0x0008
-#define INS_skip_frame 0x0010
-#define INS_DLE_command 0x0020
+#define INS_command 0x0001
+#define INS_DLE_char 0x0002
+#define INS_byte_stuff 0x0004
+#define INS_have_data 0x0008
+#define INS_skip_frame 0x0010
+#define INS_DLE_command 0x0020
#define INS_flag_hunt 0x0040
/* channel state */
@@ -248,27 +267,27 @@ void gigaset_dbg_buffer(enum debuglevel level, const unsigned char *msg,
#define CHS_B_UP 0x02
#define CHS_NOTIFY_LL 0x04
-#define ICALL_REJECT 0
-#define ICALL_ACCEPT 1
-#define ICALL_IGNORE 2
+#define ICALL_REJECT 0
+#define ICALL_ACCEPT 1
+#define ICALL_IGNORE 2
/* device state */
-#define MS_UNINITIALIZED 0
-#define MS_INIT 1
-#define MS_LOCKED 2
-#define MS_SHUTDOWN 3
-#define MS_RECOVER 4
-#define MS_READY 5
+#define MS_UNINITIALIZED 0
+#define MS_INIT 1
+#define MS_LOCKED 2
+#define MS_SHUTDOWN 3
+#define MS_RECOVER 4
+#define MS_READY 5
/* mode */
-#define M_UNKNOWN 0
-#define M_CONFIG 1
-#define M_UNIMODEM 2
-#define M_CID 3
+#define M_UNKNOWN 0
+#define M_CONFIG 1
+#define M_UNIMODEM 2
+#define M_CID 3
/* start mode */
-#define SM_LOCKED 0
-#define SM_ISDN 1 /* default */
+#define SM_LOCKED 0
+#define SM_ISDN 1 /* default */
struct gigaset_ops;
struct gigaset_driver;
@@ -283,27 +302,26 @@ struct ser_bc_state;
struct bas_bc_state;
struct reply_t {
- int resp_code; /* RSP_XXXX */
- int min_ConState; /* <0 => ignore */
- int max_ConState; /* <0 => ignore */
- int parameter; /* e.g. ZSAU_XXXX <0: ignore*/
- int new_ConState; /* <0 => ignore */
- int timeout; /* >0 => *HZ; <=0 => TOUT_XXXX*/
- int action[MAXACT]; /* ACT_XXXX */
- char *command; /* NULL==none */
+ int resp_code; /* RSP_XXXX */
+ int min_ConState; /* <0 => ignore */
+ int max_ConState; /* <0 => ignore */
+ int parameter; /* e.g. ZSAU_XXXX <0: ignore*/
+ int new_ConState; /* <0 => ignore */
+ int timeout; /* >0 => *HZ; <=0 => TOUT_XXXX*/
+ int action[MAXACT]; /* ACT_XXXX */
+ char *command; /* NULL==none */
};
extern struct reply_t gigaset_tab_cid_m10x[];
extern struct reply_t gigaset_tab_nocid_m10x[];
struct inbuf_t {
- unsigned char *rcvbuf; /* usb-gigaset receive buffer */
+ unsigned char *rcvbuf; /* usb-gigaset receive buffer */
struct bc_state *bcs;
- struct cardstate *cs;
- int inputstate;
-
- atomic_t head, tail;
- unsigned char data[RBUFSIZE];
+ struct cardstate *cs;
+ int inputstate;
+ atomic_t head, tail;
+ unsigned char data[RBUFSIZE];
};
/* isochronous write buffer structure
@@ -319,16 +337,9 @@ struct inbuf_t {
* if writesem <= 0, data[write..read-1] is currently being written to
* - idle contains the byte value to repeat when the end of valid data is
* reached; if nextread==write (buffer contains no data to send), either the
- * BAS_OUTBUFPAD bytes immediately before data[write] (if write>=BAS_OUTBUFPAD)
- * or those of the pad area (if write<BAS_OUTBUFPAD) are also filled with that
- * value
- * - optionally, the following statistics on the buffer's usage can be collected:
- * maxfill: maximum number of bytes occupied
- * idlefills: number of times a frame of idle bytes is prepared
- * emptygets: number of times the buffer was empty when a data frame was requested
- * backtoback: number of times two data packets were entered into the buffer
- * without intervening idle flags
- * nakedback: set if no idle flags have been inserted since the last data packet
+ * BAS_OUTBUFPAD bytes immediately before data[write] (if
+ * write>=BAS_OUTBUFPAD) or those of the pad area (if write<BAS_OUTBUFPAD)
+ * are also filled with that value
*/
struct isowbuf_t {
atomic_t read;
@@ -358,34 +369,28 @@ struct isow_urbctx_t {
* it is currently assigned a B channel
*/
struct at_state_t {
- struct list_head list;
- int waiting;
- int getstring;
- atomic_t timer_index;
+ struct list_head list;
+ int waiting;
+ int getstring;
+ unsigned timer_index;
unsigned long timer_expires;
int timer_active;
- unsigned int ConState; /* State of connection */
- struct reply_t *replystruct;
- int cid;
- int int_var[VAR_NUM]; /* see VAR_XXXX */
- char *str_var[STR_NUM]; /* see STR_XXXX */
- unsigned pending_commands; /* see PC_XXXX */
- atomic_t seq_index;
-
- struct cardstate *cs;
- struct bc_state *bcs;
+ unsigned int ConState; /* State of connection */
+ struct reply_t *replystruct;
+ int cid;
+ int int_var[VAR_NUM]; /* see VAR_XXXX */
+ char *str_var[STR_NUM]; /* see STR_XXXX */
+ unsigned pending_commands; /* see PC_XXXX */
+ unsigned seq_index;
+
+ struct cardstate *cs;
+ struct bc_state *bcs;
};
struct resp_type_t {
unsigned char *response;
- int resp_code; /* RSP_XXXX */
- int type; /* RT_XXXX */
-};
-
-struct prot_skb {
- atomic_t empty;
- struct semaphore *sem;
- struct sk_buff *skb;
+ int resp_code; /* RSP_XXXX */
+ int type; /* RT_XXXX */
};
struct event_t {
@@ -398,29 +403,29 @@ struct event_t {
/* This buffer holds all information about the used B-Channel */
struct bc_state {
- struct sk_buff *tx_skb; /* Current transfer buffer to modem */
- struct sk_buff_head squeue; /* B-Channel send Queue */
+ struct sk_buff *tx_skb; /* Current transfer buffer to modem */
+ struct sk_buff_head squeue; /* B-Channel send Queue */
/* Variables for debugging .. */
- int corrupted; /* Counter for corrupted packages */
- int trans_down; /* Counter of packages (downstream) */
- int trans_up; /* Counter of packages (upstream) */
+ int corrupted; /* Counter for corrupted packages */
+ int trans_down; /* Counter of packages (downstream) */
+ int trans_up; /* Counter of packages (upstream) */
struct at_state_t at_state;
unsigned long rcvbytes;
__u16 fcs;
struct sk_buff *skb;
- int inputstate; /* see INS_XXXX */
+ int inputstate; /* see INS_XXXX */
int channel;
struct cardstate *cs;
- unsigned chstate; /* bitmap (CHS_*) */
+ unsigned chstate; /* bitmap (CHS_*) */
int ignore;
- unsigned proto2; /* Layer 2 protocol (ISDN_PROTO_L2_*) */
- char *commands[AT_NUM]; /* see AT_XXXX */
+ unsigned proto2; /* Layer 2 protocol (ISDN_PROTO_L2_*) */
+ char *commands[AT_NUM]; /* see AT_XXXX */
#ifdef CONFIG_GIGASET_DEBUG
int emptycount;
@@ -428,37 +433,39 @@ struct bc_state {
int busy;
int use_count;
- /* hardware drivers */
+ /* private data of hardware drivers */
union {
- struct ser_bc_state *ser; /* private data of serial hardware driver */
- struct usb_bc_state *usb; /* private data of usb hardware driver */
- struct bas_bc_state *bas;
+ struct ser_bc_state *ser; /* serial hardware driver */
+ struct usb_bc_state *usb; /* usb hardware driver (m105) */
+ struct bas_bc_state *bas; /* usb hardware driver (base) */
} hw;
};
struct cardstate {
struct gigaset_driver *driver;
unsigned minor_index;
+ struct device *dev;
const struct gigaset_ops *ops;
/* Stuff to handle communication */
- //wait_queue_head_t initwait;
wait_queue_head_t waitqueue;
int waiting;
- atomic_t mode; /* see M_XXXX */
- atomic_t mstate; /* Modem state: see MS_XXXX */
- /* only changed by the event layer */
+ atomic_t mode; /* see M_XXXX */
+ atomic_t mstate; /* Modem state: see MS_XXXX */
+ /* only changed by the event layer */
int cmd_result;
int channels;
- struct bc_state *bcs; /* Array of struct bc_state */
+ struct bc_state *bcs; /* Array of struct bc_state */
- int onechannel; /* data and commands transmitted in one stream (M10x) */
+ int onechannel; /* data and commands transmitted in one
+ stream (M10x) */
spinlock_t lock;
- struct at_state_t at_state; /* at_state_t for cid == 0 */
- struct list_head temp_at_states; /* list of temporary "struct at_state_t"s without B channel */
+ struct at_state_t at_state; /* at_state_t for cid == 0 */
+ struct list_head temp_at_states;/* list of temporary "struct
+ at_state_t"s without B channel */
struct inbuf_t *inbuf;
@@ -474,58 +481,69 @@ struct cardstate {
unsigned fwver[4];
int gotfwver;
- atomic_t running; /* !=0 if events are handled */
- atomic_t connected; /* !=0 if hardware is connected */
+ unsigned running; /* !=0 if events are handled */
+ unsigned connected; /* !=0 if hardware is connected */
+ unsigned isdn_up; /* !=0 after ISDN_STAT_RUN */
- atomic_t cidmode;
+ unsigned cidmode;
- int myid; /* id for communication with LL */
+ int myid; /* id for communication with LL */
isdn_if iif;
struct reply_t *tabnocid;
struct reply_t *tabcid;
int cs_init;
- int ignoreframes; /* frames to ignore after setting up the B channel */
- struct semaphore sem; /* locks this structure: */
- /* connected is not changed, */
- /* hardware_up is not changed, */
- /* MState is not changed to or from MS_LOCKED */
+ int ignoreframes; /* frames to ignore after setting up the
+ B channel */
+ struct mutex mutex; /* locks this structure:
+ * connected is not changed,
+ * hardware_up is not changed,
+ * MState is not changed to or from
+ * MS_LOCKED */
struct timer_list timer;
int retry_count;
- int dle; /* !=0 if modem commands/responses are dle encoded */
- int cur_at_seq; /* sequence of AT commands being processed */
- int curchannel; /* channel, those commands are meant for */
- atomic_t commands_pending; /* flag(s) in xxx.commands_pending have been set */
- struct tasklet_struct event_tasklet; /* tasklet for serializing AT commands. Scheduled
- * -> for modem reponses (and incomming data for M10x)
- * -> on timeout
- * -> after setting bits in xxx.at_state.pending_command
- * (e.g. command from LL) */
- struct tasklet_struct write_tasklet; /* tasklet for serial output
- * (not used in base driver) */
+ int dle; /* !=0 if modem commands/responses are
+ dle encoded */
+ int cur_at_seq; /* sequence of AT commands being
+ processed */
+ int curchannel; /* channel those commands are meant
+ for */
+ atomic_t commands_pending; /* flag(s) in xxx.commands_pending have
+ been set */
+ struct tasklet_struct event_tasklet;
+ /* tasklet for serializing AT commands.
+ * Scheduled
+ * -> for modem reponses (and
+ * incoming data for M10x)
+ * -> on timeout
+ * -> after setting bits in
+ * xxx.at_state.pending_command
+ * (e.g. command from LL) */
+ struct tasklet_struct write_tasklet;
+ /* tasklet for serial output
+ * (not used in base driver) */
/* event queue */
struct event_t events[MAX_EVENTS];
- atomic_t ev_tail, ev_head;
+ unsigned ev_tail, ev_head;
spinlock_t ev_lock;
/* current modem response */
unsigned char respdata[MAX_RESP_SIZE];
unsigned cbytes;
- /* hardware drivers */
+ /* private data of hardware drivers */
union {
- struct usb_cardstate *usb; /* private data of USB hardware driver */
- struct ser_cardstate *ser; /* private data of serial hardware driver */
- struct bas_cardstate *bas; /* private data of base hardware driver */
+ struct usb_cardstate *usb; /* USB hardware driver (m105) */
+ struct ser_cardstate *ser; /* serial hardware driver */
+ struct bas_cardstate *bas; /* USB hardware driver (base) */
} hw;
};
struct gigaset_driver {
struct list_head list;
- spinlock_t lock; /* locks minor tables and blocked */
- //struct semaphore sem; /* locks this structure */
+ spinlock_t lock; /* locks minor tables and blocked */
struct tty_driver *tty;
unsigned have_tty;
unsigned minor;
@@ -553,37 +571,42 @@ struct bas_bc_state {
struct isow_urbctx_t isoouturbs[BAS_OUTURBS];
struct isow_urbctx_t *isooutdone, *isooutfree, *isooutovfl;
struct isowbuf_t *isooutbuf;
- unsigned numsub; /* submitted URB counter (for diagnostic messages only) */
+ unsigned numsub; /* submitted URB counter
+ (for diagnostic messages only) */
struct tasklet_struct sent_tasklet;
/* isochronous input state */
spinlock_t isoinlock;
struct urb *isoinurbs[BAS_INURBS];
unsigned char isoinbuf[BAS_INBUFSIZE * BAS_INURBS];
- struct urb *isoindone; /* completed isoc read URB */
- int loststatus; /* status of dropped URB */
- unsigned isoinlost; /* number of bytes lost */
- /* state of bit unstuffing algorithm (in addition to BC_state.inputstate) */
- unsigned seqlen; /* number of '1' bits not yet unstuffed */
- unsigned inbyte, inbits; /* collected bits for next byte */
+ struct urb *isoindone; /* completed isoc read URB */
+ int loststatus; /* status of dropped URB */
+ unsigned isoinlost; /* number of bytes lost */
+ /* state of bit unstuffing algorithm
+ (in addition to BC_state.inputstate) */
+ unsigned seqlen; /* number of '1' bits not yet
+ unstuffed */
+ unsigned inbyte, inbits; /* collected bits for next byte */
/* statistics */
- unsigned goodbytes; /* bytes correctly received */
- unsigned alignerrs; /* frames with incomplete byte at end */
- unsigned fcserrs; /* FCS errors */
- unsigned frameerrs; /* framing errors */
- unsigned giants; /* long frames */
- unsigned runts; /* short frames */
- unsigned aborts; /* HDLC aborts */
- unsigned shared0s; /* '0' bits shared between flags */
- unsigned stolen0s; /* '0' stuff bits also serving as leading flag bits */
+ unsigned goodbytes; /* bytes correctly received */
+ unsigned alignerrs; /* frames with incomplete byte at end */
+ unsigned fcserrs; /* FCS errors */
+ unsigned frameerrs; /* framing errors */
+ unsigned giants; /* long frames */
+ unsigned runts; /* short frames */
+ unsigned aborts; /* HDLC aborts */
+ unsigned shared0s; /* '0' bits shared between flags */
+ unsigned stolen0s; /* '0' stuff bits also serving as
+ leading flag bits */
struct tasklet_struct rcvd_tasklet;
};
struct gigaset_ops {
- /* Called from ev-layer.c/interface.c for sending AT commands to the device */
+ /* Called from ev-layer.c/interface.c for sending AT commands to the
+ device */
int (*write_cmd)(struct cardstate *cs,
- const unsigned char *buf, int len,
- struct tasklet_struct *wake_tasklet);
+ const unsigned char *buf, int len,
+ struct tasklet_struct *wake_tasklet);
/* Called from interface.c for additional device control */
int (*write_room)(struct cardstate *cs);
@@ -604,7 +627,7 @@ struct gigaset_ops {
/* Called by gigaset_freecs() for freeing bcs->hw.xxx */
int (*freebcshw)(struct bc_state *bcs);
- /* Called by gigaset_stop() or gigaset_bchannel_down() for resetting bcs->hw.xxx */
+ /* Called by gigaset_bchannel_down() for resetting bcs->hw.xxx */
void (*reinitbcshw)(struct bc_state *bcs);
/* Called by gigaset_initcs() for setting up cs->hw.xxx */
@@ -613,13 +636,10 @@ struct gigaset_ops {
/* Called by gigaset_freecs() for freeing cs->hw.xxx */
void (*freecshw)(struct cardstate *cs);
- ///* Called by gigaset_stop() for killing URBs, shutting down the device, ...
- // hardwareup: ==0: don't try to shut down the device, hardware is really not accessible
- // !=0: hardware still up */
- //void (*stophw)(struct cardstate *cs, int hardwareup);
-
- /* Called from common.c/interface.c for additional serial port control */
- int (*set_modem_ctrl)(struct cardstate *cs, unsigned old_state, unsigned new_state);
+ /* Called from common.c/interface.c for additional serial port
+ control */
+ int (*set_modem_ctrl)(struct cardstate *cs, unsigned old_state,
+ unsigned new_state);
int (*baud_rate)(struct cardstate *cs, unsigned cflag);
int (*set_line_ctrl)(struct cardstate *cs, unsigned cflag);
@@ -639,7 +659,7 @@ struct gigaset_ops {
* <DLE_FLAG>: 0x10
* <EVENT>: ((a-z)* | (A-Z)* | (0-10)*)+
*/
-#define DLE_FLAG 0x10
+#define DLE_FLAG 0x10
/* ===========================================================================
* Functions implemented in asyncdata.c
@@ -667,7 +687,8 @@ void gigaset_isoc_input(struct inbuf_t *inbuf);
/* Called from bas-gigaset.c to process a block of data
* received through the isochronous channel */
-void gigaset_isoc_receive(unsigned char *src, unsigned count, struct bc_state *bcs);
+void gigaset_isoc_receive(unsigned char *src, unsigned count,
+ struct bc_state *bcs);
/* Called from bas-gigaset.c to put a block of data
* into the isochronous output buffer */
@@ -703,7 +724,7 @@ static inline void gigaset_isdn_rcv_err(struct bc_state *bcs)
isdn_ctrl response;
/* error -> LL */
- dbg(DEBUG_CMD, "sending L1ERR");
+ gig_dbg(DEBUG_CMD, "sending L1ERR");
response.driver = bcs->cs->myid;
response.command = ISDN_STAT_L1ERR;
response.arg = bcs->channel;
@@ -727,8 +748,8 @@ void gigaset_handle_modem_response(struct cardstate *cs);
*/
/* initialize sysfs for device */
-void gigaset_init_dev_sysfs(struct usb_interface *interface);
-void gigaset_free_dev_sysfs(struct usb_interface *interface);
+void gigaset_init_dev_sysfs(struct cardstate *cs);
+void gigaset_free_dev_sysfs(struct cardstate *cs);
/* ===========================================================================
* Functions implemented in common.c/gigaset.h
@@ -736,7 +757,7 @@ void gigaset_free_dev_sysfs(struct usb_interface *interface);
void gigaset_bcs_reinit(struct bc_state *bcs);
void gigaset_at_init(struct at_state_t *at_state, struct bc_state *bcs,
- struct cardstate *cs, int cid);
+ struct cardstate *cs, int cid);
int gigaset_get_channel(struct bc_state *bcs);
void gigaset_free_channel(struct bc_state *bcs);
int gigaset_get_channels(struct cardstate *cs);
@@ -745,16 +766,15 @@ void gigaset_block_channels(struct cardstate *cs);
/* Allocate and initialize driver structure. */
struct gigaset_driver *gigaset_initdriver(unsigned minor, unsigned minors,
- const char *procname,
- const char *devname,
- const char *devfsname,
- const struct gigaset_ops *ops,
- struct module *owner);
+ const char *procname,
+ const char *devname,
+ const char *devfsname,
+ const struct gigaset_ops *ops,
+ struct module *owner);
/* Deallocate driver structure. */
void gigaset_freedriver(struct gigaset_driver *drv);
void gigaset_debugdrivers(void);
-struct cardstate *gigaset_get_cs_by_minor(unsigned minor);
struct cardstate *gigaset_get_cs_by_tty(struct tty_struct *tty);
struct cardstate *gigaset_get_cs_by_id(int id);
@@ -763,7 +783,8 @@ struct cardstate *gigaset_getunassignedcs(struct gigaset_driver *drv);
void gigaset_unassign(struct cardstate *cs);
void gigaset_blockdriver(struct gigaset_driver *drv);
-/* Allocate and initialize card state. Calls hardware dependent gigaset_init[b]cs(). */
+/* Allocate and initialize card state. Calls hardware dependent
+ gigaset_init[b]cs(). */
struct cardstate *gigaset_initcs(struct gigaset_driver *drv, int channels,
int onechannel, int ignoreframes,
int cidmode, const char *modulename);
@@ -788,8 +809,8 @@ void gigaset_skb_sent(struct bc_state *bcs, struct sk_buff *skb);
* ptr must be kmalloc()ed (and not be freed by the caller).
*/
struct event_t *gigaset_add_event(struct cardstate *cs,
- struct at_state_t *at_state, int type,
- void *ptr, int parameter, void *arg);
+ struct at_state_t *at_state, int type,
+ void *ptr, int parameter, void *arg);
/* Called on CONFIG1 command from frontend. */
int gigaset_enterconfigmode(struct cardstate *cs); //0: success <0: errorcode
@@ -799,7 +820,7 @@ static inline void gigaset_schedule_event(struct cardstate *cs)
{
unsigned long flags;
spin_lock_irqsave(&cs->lock, flags);
- if (atomic_read(&cs->running))
+ if (cs->running)
tasklet_schedule(&cs->event_tasklet);
spin_unlock_irqrestore(&cs->lock, flags);
}
@@ -810,7 +831,7 @@ static inline void gigaset_bchannel_down(struct bc_state *bcs)
{
gigaset_add_event(bcs->cs, &bcs->at_state, EV_BC_CLOSED, NULL, 0, NULL);
- dbg(DEBUG_CMD, "scheduling BC_CLOSED");
+ gig_dbg(DEBUG_CMD, "scheduling BC_CLOSED");
gigaset_schedule_event(bcs->cs);
}
@@ -820,36 +841,19 @@ static inline void gigaset_bchannel_up(struct bc_state *bcs)
{
gigaset_add_event(bcs->cs, &bcs->at_state, EV_BC_OPEN, NULL, 0, NULL);
- dbg(DEBUG_CMD, "scheduling BC_OPEN");
+ gig_dbg(DEBUG_CMD, "scheduling BC_OPEN");
gigaset_schedule_event(bcs->cs);
}
/* handling routines for sk_buff */
/* ============================= */
-/* private version of __skb_put()
- * append 'len' bytes to the content of 'skb', already knowing that the
- * existing buffer can accomodate them
- * returns a pointer to the location where the new bytes should be copied to
- * This function does not take any locks so it must be called with the
- * appropriate locks held only.
- */
-static inline unsigned char *gigaset_skb_put_quick(struct sk_buff *skb,
- unsigned int len)
-{
- unsigned char *tmp = skb->tail;
- /*SKB_LINEAR_ASSERT(skb);*/ /* not needed here */
- skb->tail += len;
- skb->len += len;
- return tmp;
-}
-
/* pass received skb to LL
* Warning: skb must not be accessed anymore!
*/
static inline void gigaset_rcv_skb(struct sk_buff *skb,
- struct cardstate *cs,
- struct bc_state *bcs)
+ struct cardstate *cs,
+ struct bc_state *bcs)
{
cs->iif.rcvcallb_skb(cs->myid, bcs->channel, skb);
bcs->trans_down++;
@@ -859,8 +863,8 @@ static inline void gigaset_rcv_skb(struct sk_buff *skb,
* Warning: skb must not be accessed anymore!
*/
static inline void gigaset_rcv_error(struct sk_buff *procskb,
- struct cardstate *cs,
- struct bc_state *bcs)
+ struct cardstate *cs,
+ struct bc_state *bcs)
{
if (procskb)
dev_kfree_skb(procskb);
@@ -877,46 +881,9 @@ static inline void gigaset_rcv_error(struct sk_buff *procskb,
/* bitwise byte inversion table */
extern __u8 gigaset_invtab[]; /* in common.c */
-
/* append received bytes to inbuf */
-static inline int gigaset_fill_inbuf(struct inbuf_t *inbuf,
- const unsigned char *src,
- unsigned numbytes)
-{
- unsigned n, head, tail, bytesleft;
-
- dbg(DEBUG_INTR, "received %u bytes", numbytes);
-
- if (!numbytes)
- return 0;
-
- bytesleft = numbytes;
- tail = atomic_read(&inbuf->tail);
- head = atomic_read(&inbuf->head);
- dbg(DEBUG_INTR, "buffer state: %u -> %u", head, tail);
-
- while (bytesleft) {
- if (head > tail)
- n = head - 1 - tail;
- else if (head == 0)
- n = (RBUFSIZE-1) - tail;
- else
- n = RBUFSIZE - tail;
- if (!n) {
- err("buffer overflow (%u bytes lost)", bytesleft);
- break;
- }
- if (n > bytesleft)
- n = bytesleft;
- memcpy(inbuf->data + tail, src, n);
- bytesleft -= n;
- tail = (tail + n) % RBUFSIZE;
- src += n;
- }
- dbg(DEBUG_INTR, "setting tail to %u", tail);
- atomic_set(&inbuf->tail, tail);
- return numbytes != bytesleft;
-}
+int gigaset_fill_inbuf(struct inbuf_t *inbuf, const unsigned char *src,
+ unsigned numbytes);
/* ===========================================================================
* Functions implemented in interface.c
@@ -924,7 +891,7 @@ static inline int gigaset_fill_inbuf(struct inbuf_t *inbuf,
/* initialize interface */
void gigaset_if_initdriver(struct gigaset_driver *drv, const char *procname,
- const char *devname, const char *devfsname);
+ const char *devname, const char *devfsname);
/* release interface */
void gigaset_if_freedriver(struct gigaset_driver *drv);
/* add minor */
@@ -933,6 +900,6 @@ void gigaset_if_init(struct cardstate *cs);
void gigaset_if_free(struct cardstate *cs);
/* device received data */
void gigaset_if_receive(struct cardstate *cs,
- unsigned char *buffer, size_t len);
+ unsigned char *buffer, size_t len);
#endif
diff --git a/drivers/isdn/gigaset/i4l.c b/drivers/isdn/gigaset/i4l.c
index 731a675f21b..1654fa41357 100644
--- a/drivers/isdn/gigaset/i4l.c
+++ b/drivers/isdn/gigaset/i4l.c
@@ -1,9 +1,9 @@
/*
* Stuff used by all variants of the driver
*
- * Copyright (c) 2001 by Stefan Eilers (Eilers.Stefan@epost.de),
- * Hansjoerg Lipp (hjlipp@web.de),
- * Tilman Schmidt (tilman@imap.cc).
+ * Copyright (c) 2001 by Stefan Eilers,
+ * Hansjoerg Lipp <hjlipp@web.de>,
+ * Tilman Schmidt <tilman@imap.cc>.
*
* =====================================================================
* This program is free software; you can redistribute it and/or
@@ -11,15 +11,11 @@
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
* =====================================================================
- * ToDo: ...
- * =====================================================================
- * Version: $Id: i4l.c,v 1.3.2.9 2006/02/04 18:28:16 hjlipp Exp $
- * =====================================================================
*/
#include "gigaset.h"
-/* == Handling of I4L IO ============================================================================*/
+/* == Handling of I4L IO =====================================================*/
/* writebuf_from_LL
* called by LL to transmit data on an open channel
@@ -29,14 +25,16 @@
* parameters:
* driverID driver ID as assigned by LL
* channel channel number
- * ack if != 0 LL wants to be notified on completion via statcallb(ISDN_STAT_BSENT)
+ * ack if != 0 LL wants to be notified on completion via
+ * statcallb(ISDN_STAT_BSENT)
* skb skb containing data to send
* return value:
* number of accepted bytes
* 0 if temporarily unable to accept data (out of buffer space)
* <0 on error (eg. -EINVAL)
*/
-static int writebuf_from_LL(int driverID, int channel, int ack, struct sk_buff *skb)
+static int writebuf_from_LL(int driverID, int channel, int ack,
+ struct sk_buff *skb)
{
struct cardstate *cs;
struct bc_state *bcs;
@@ -54,28 +52,25 @@ static int writebuf_from_LL(int driverID, int channel, int ack, struct sk_buff *
bcs = &cs->bcs[channel];
len = skb->len;
- dbg(DEBUG_LLDATA,
- "Receiving data from LL (id: %d, channel: %d, ack: %d, size: %d)",
- driverID, channel, ack, len);
+ gig_dbg(DEBUG_LLDATA,
+ "Receiving data from LL (id: %d, ch: %d, ack: %d, sz: %d)",
+ driverID, channel, ack, len);
if (!len) {
if (ack)
- warn("not ACKing empty packet from LL");
+ notice("%s: not ACKing empty packet", __func__);
return 0;
}
if (len > MAX_BUF_SIZE) {
- err("%s: packet too large (%d bytes)", __func__, channel);
+ err("%s: packet too large (%d bytes)", __func__, len);
return -EINVAL;
}
- if (!atomic_read(&cs->connected))
- return -ENODEV;
-
skblen = ack ? len : 0;
skb->head[0] = skblen & 0xff;
skb->head[1] = skblen >> 8;
- dbg(DEBUG_MCMD, "skb: len=%u, skblen=%u: %02x %02x", len, skblen,
- (unsigned) skb->head[0], (unsigned) skb->head[1]);
+ gig_dbg(DEBUG_MCMD, "skb: len=%u, skblen=%u: %02x %02x",
+ len, skblen, (unsigned) skb->head[0], (unsigned) skb->head[1]);
/* pass to device-specific module */
return cs->ops->send_skb(bcs, skb);
@@ -89,14 +84,14 @@ void gigaset_skb_sent(struct bc_state *bcs, struct sk_buff *skb)
++bcs->trans_up;
if (skb->len)
- warn("%s: skb->len==%d", __func__, skb->len);
+ dev_warn(bcs->cs->dev, "%s: skb->len==%d\n",
+ __func__, skb->len);
len = (unsigned char) skb->head[0] |
(unsigned) (unsigned char) skb->head[1] << 8;
if (len) {
- dbg(DEBUG_MCMD,
- "Acknowledge sending to LL (id: %d, channel: %d size: %u)",
- bcs->cs->myid, bcs->channel, len);
+ gig_dbg(DEBUG_MCMD, "ACKing to LL (id: %d, ch: %d, sz: %u)",
+ bcs->cs->myid, bcs->channel, len);
response.driver = bcs->cs->myid;
response.command = ISDN_STAT_BSENT;
@@ -119,15 +114,12 @@ static int command_from_LL(isdn_ctrl *cntrl)
struct bc_state *bcs;
int retval = 0;
struct setup_parm *sp;
+ unsigned param;
+ unsigned long flags;
- //dbg(DEBUG_ANY, "Gigaset_HW: Receiving command");
gigaset_debugdrivers();
- /* Terminate this call if no device is present. Bt if the command is "ISDN_CMD_LOCK" or
- * "ISDN_CMD_UNLOCK" then execute it due to the fact that they are device independent !
- */
- //FIXME "remove test for &connected"
- if ((!cs || !atomic_read(&cs->connected))) {
+ if (!cs) {
warn("LL tried to access unknown device with nr. %d",
cntrl->driver);
return -ENODEV;
@@ -135,29 +127,30 @@ static int command_from_LL(isdn_ctrl *cntrl)
switch (cntrl->command) {
case ISDN_CMD_IOCTL:
-
- dbg(DEBUG_ANY, "ISDN_CMD_IOCTL (driver:%d,arg: %ld)",
- cntrl->driver, cntrl->arg);
+ gig_dbg(DEBUG_ANY, "ISDN_CMD_IOCTL (driver: %d, arg: %ld)",
+ cntrl->driver, cntrl->arg);
warn("ISDN_CMD_IOCTL is not supported.");
return -EINVAL;
case ISDN_CMD_DIAL:
- dbg(DEBUG_ANY, "ISDN_CMD_DIAL (driver: %d, channel: %ld, "
- "phone: %s,ownmsn: %s, si1: %d, si2: %d)",
- cntrl->driver, cntrl->arg,
- cntrl->parm.setup.phone, cntrl->parm.setup.eazmsn,
- cntrl->parm.setup.si1, cntrl->parm.setup.si2);
+ gig_dbg(DEBUG_ANY,
+ "ISDN_CMD_DIAL (driver: %d, ch: %ld, "
+ "phone: %s, ownmsn: %s, si1: %d, si2: %d)",
+ cntrl->driver, cntrl->arg,
+ cntrl->parm.setup.phone, cntrl->parm.setup.eazmsn,
+ cntrl->parm.setup.si1, cntrl->parm.setup.si2);
if (cntrl->arg >= cs->channels) {
- err("invalid channel (%d)", (int) cntrl->arg);
+ err("ISDN_CMD_DIAL: invalid channel (%d)",
+ (int) cntrl->arg);
return -EINVAL;
}
bcs = cs->bcs + cntrl->arg;
if (!gigaset_get_channel(bcs)) {
- err("channel not free");
+ err("ISDN_CMD_DIAL: channel not free");
return -EBUSY;
}
@@ -169,42 +162,46 @@ static int command_from_LL(isdn_ctrl *cntrl)
}
*sp = cntrl->parm.setup;
- if (!gigaset_add_event(cs, &bcs->at_state, EV_DIAL, sp,
- atomic_read(&bcs->at_state.seq_index),
- NULL)) {
+ spin_lock_irqsave(&cs->lock, flags);
+ param = bcs->at_state.seq_index;
+ spin_unlock_irqrestore(&cs->lock, flags);
+
+ if (!gigaset_add_event(cs, &bcs->at_state, EV_DIAL, sp, param,
+ NULL)) {
//FIXME what should we do?
kfree(sp);
gigaset_free_channel(bcs);
return -ENOMEM;
}
- dbg(DEBUG_CMD, "scheduling DIAL");
+ gig_dbg(DEBUG_CMD, "scheduling DIAL");
gigaset_schedule_event(cs);
break;
case ISDN_CMD_ACCEPTD: //FIXME
- dbg(DEBUG_ANY, "ISDN_CMD_ACCEPTD");
+ gig_dbg(DEBUG_ANY, "ISDN_CMD_ACCEPTD");
if (cntrl->arg >= cs->channels) {
- err("invalid channel (%d)", (int) cntrl->arg);
+ err("ISDN_CMD_ACCEPTD: invalid channel (%d)",
+ (int) cntrl->arg);
return -EINVAL;
}
if (!gigaset_add_event(cs, &cs->bcs[cntrl->arg].at_state,
- EV_ACCEPT, NULL, 0, NULL)) {
+ EV_ACCEPT, NULL, 0, NULL)) {
//FIXME what should we do?
return -ENOMEM;
}
- dbg(DEBUG_CMD, "scheduling ACCEPT");
+ gig_dbg(DEBUG_CMD, "scheduling ACCEPT");
gigaset_schedule_event(cs);
break;
case ISDN_CMD_ACCEPTB:
- dbg(DEBUG_ANY, "ISDN_CMD_ACCEPTB");
+ gig_dbg(DEBUG_ANY, "ISDN_CMD_ACCEPTB");
break;
case ISDN_CMD_HANGUP:
- dbg(DEBUG_ANY,
- "ISDN_CMD_HANGUP (channel: %d)", (int) cntrl->arg);
+ gig_dbg(DEBUG_ANY, "ISDN_CMD_HANGUP (ch: %d)",
+ (int) cntrl->arg);
if (cntrl->arg >= cs->channels) {
err("ISDN_CMD_HANGUP: invalid channel (%u)",
@@ -213,66 +210,68 @@ static int command_from_LL(isdn_ctrl *cntrl)
}
if (!gigaset_add_event(cs, &cs->bcs[cntrl->arg].at_state,
- EV_HUP, NULL, 0, NULL)) {
+ EV_HUP, NULL, 0, NULL)) {
//FIXME what should we do?
return -ENOMEM;
}
- dbg(DEBUG_CMD, "scheduling HUP");
+ gig_dbg(DEBUG_CMD, "scheduling HUP");
gigaset_schedule_event(cs);
break;
- case ISDN_CMD_CLREAZ: /* Do not signal incoming signals */ //FIXME
- dbg(DEBUG_ANY, "ISDN_CMD_CLREAZ");
+ case ISDN_CMD_CLREAZ: /* Do not signal incoming signals */ //FIXME
+ gig_dbg(DEBUG_ANY, "ISDN_CMD_CLREAZ");
break;
- case ISDN_CMD_SETEAZ: /* Signal incoming calls for given MSN */ //FIXME
- dbg(DEBUG_ANY,
- "ISDN_CMD_SETEAZ (id:%d, channel: %ld, number: %s)",
- cntrl->driver, cntrl->arg, cntrl->parm.num);
+ case ISDN_CMD_SETEAZ: /* Signal incoming calls for given MSN */ //FIXME
+ gig_dbg(DEBUG_ANY,
+ "ISDN_CMD_SETEAZ (id: %d, ch: %ld, number: %s)",
+ cntrl->driver, cntrl->arg, cntrl->parm.num);
break;
- case ISDN_CMD_SETL2: /* Set L2 to given protocol */
- dbg(DEBUG_ANY, "ISDN_CMD_SETL2 (Channel: %ld, Proto: %lx)",
- cntrl->arg & 0xff, (cntrl->arg >> 8));
+ case ISDN_CMD_SETL2: /* Set L2 to given protocol */
+ gig_dbg(DEBUG_ANY, "ISDN_CMD_SETL2 (ch: %ld, proto: %lx)",
+ cntrl->arg & 0xff, (cntrl->arg >> 8));
if ((cntrl->arg & 0xff) >= cs->channels) {
- err("invalid channel (%u)",
+ err("ISDN_CMD_SETL2: invalid channel (%u)",
(unsigned) cntrl->arg & 0xff);
return -EINVAL;
}
if (!gigaset_add_event(cs, &cs->bcs[cntrl->arg & 0xff].at_state,
- EV_PROTO_L2, NULL, cntrl->arg >> 8,
- NULL)) {
+ EV_PROTO_L2, NULL, cntrl->arg >> 8,
+ NULL)) {
//FIXME what should we do?
return -ENOMEM;
}
- dbg(DEBUG_CMD, "scheduling PROTO_L2");
+ gig_dbg(DEBUG_CMD, "scheduling PROTO_L2");
gigaset_schedule_event(cs);
break;
- case ISDN_CMD_SETL3: /* Set L3 to given protocol */
- dbg(DEBUG_ANY, "ISDN_CMD_SETL3 (Channel: %ld, Proto: %lx)",
- cntrl->arg & 0xff, (cntrl->arg >> 8));
+ case ISDN_CMD_SETL3: /* Set L3 to given protocol */
+ gig_dbg(DEBUG_ANY, "ISDN_CMD_SETL3 (ch: %ld, proto: %lx)",
+ cntrl->arg & 0xff, (cntrl->arg >> 8));
if ((cntrl->arg & 0xff) >= cs->channels) {
- err("invalid channel (%u)",
+ err("ISDN_CMD_SETL3: invalid channel (%u)",
(unsigned) cntrl->arg & 0xff);
return -EINVAL;
}
if (cntrl->arg >> 8 != ISDN_PROTO_L3_TRANS) {
- err("invalid protocol %lu", cntrl->arg >> 8);
+ err("ISDN_CMD_SETL3: invalid protocol %lu",
+ cntrl->arg >> 8);
return -EINVAL;
}
break;
case ISDN_CMD_PROCEED:
- dbg(DEBUG_ANY, "ISDN_CMD_PROCEED"); //FIXME
+ gig_dbg(DEBUG_ANY, "ISDN_CMD_PROCEED"); //FIXME
break;
case ISDN_CMD_ALERT:
- dbg(DEBUG_ANY, "ISDN_CMD_ALERT"); //FIXME
+ gig_dbg(DEBUG_ANY, "ISDN_CMD_ALERT"); //FIXME
if (cntrl->arg >= cs->channels) {
- err("invalid channel (%d)", (int) cntrl->arg);
+ err("ISDN_CMD_ALERT: invalid channel (%d)",
+ (int) cntrl->arg);
return -EINVAL;
}
//bcs = cs->bcs + cntrl->arg;
@@ -280,32 +279,31 @@ static int command_from_LL(isdn_ctrl *cntrl)
// FIXME
break;
case ISDN_CMD_REDIR:
- dbg(DEBUG_ANY, "ISDN_CMD_REDIR"); //FIXME
+ gig_dbg(DEBUG_ANY, "ISDN_CMD_REDIR"); //FIXME
break;
case ISDN_CMD_PROT_IO:
- dbg(DEBUG_ANY, "ISDN_CMD_PROT_IO");
+ gig_dbg(DEBUG_ANY, "ISDN_CMD_PROT_IO");
break;
case ISDN_CMD_FAXCMD:
- dbg(DEBUG_ANY, "ISDN_CMD_FAXCMD");
+ gig_dbg(DEBUG_ANY, "ISDN_CMD_FAXCMD");
break;
case ISDN_CMD_GETL2:
- dbg(DEBUG_ANY, "ISDN_CMD_GETL2");
+ gig_dbg(DEBUG_ANY, "ISDN_CMD_GETL2");
break;
case ISDN_CMD_GETL3:
- dbg(DEBUG_ANY, "ISDN_CMD_GETL3");
+ gig_dbg(DEBUG_ANY, "ISDN_CMD_GETL3");
break;
case ISDN_CMD_GETEAZ:
- dbg(DEBUG_ANY, "ISDN_CMD_GETEAZ");
+ gig_dbg(DEBUG_ANY, "ISDN_CMD_GETEAZ");
break;
case ISDN_CMD_SETSIL:
- dbg(DEBUG_ANY, "ISDN_CMD_SETSIL");
+ gig_dbg(DEBUG_ANY, "ISDN_CMD_SETSIL");
break;
case ISDN_CMD_GETSIL:
- dbg(DEBUG_ANY, "ISDN_CMD_GETSIL");
+ gig_dbg(DEBUG_ANY, "ISDN_CMD_GETSIL");
break;
default:
- err("unknown command %d from LL",
- cntrl->command);
+ err("unknown command %d from LL", cntrl->command);
return -EINVAL;
}
@@ -350,7 +348,8 @@ int gigaset_isdn_setup_dial(struct at_state_t *at_state, void *data)
proto = 2; /* 0: Bitsynchron, 1: HDLC, 2: voice */
break;
default:
- err("invalid protocol: %u", bcs->proto2);
+ dev_err(bcs->cs->dev, "%s: invalid L2 protocol: %u\n",
+ __func__, bcs->proto2);
return -EINVAL;
}
@@ -378,7 +377,7 @@ int gigaset_isdn_setup_dial(struct at_state_t *at_state, void *data)
bcs->commands[i] = NULL;
if (length[i] &&
!(bcs->commands[i] = kmalloc(length[i], GFP_ATOMIC))) {
- err("out of memory");
+ dev_err(bcs->cs->dev, "out of memory\n");
return -ENOMEM;
}
}
@@ -396,10 +395,14 @@ int gigaset_isdn_setup_dial(struct at_state_t *at_state, void *data)
}
if (bcs->commands[AT_MSN])
- snprintf(bcs->commands[AT_MSN], length[AT_MSN], "^SMSN=%s\r", sp->eazmsn);
- snprintf(bcs->commands[AT_BC ], length[AT_BC ], "^SBC=%s\r", bc);
- snprintf(bcs->commands[AT_PROTO], length[AT_PROTO], "^SBPR=%u\r", proto);
- snprintf(bcs->commands[AT_ISO ], length[AT_ISO ], "^SISO=%u\r", (unsigned)bcs->channel + 1);
+ snprintf(bcs->commands[AT_MSN], length[AT_MSN],
+ "^SMSN=%s\r", sp->eazmsn);
+ snprintf(bcs->commands[AT_BC ], length[AT_BC ],
+ "^SBC=%s\r", bc);
+ snprintf(bcs->commands[AT_PROTO], length[AT_PROTO],
+ "^SBPR=%u\r", proto);
+ snprintf(bcs->commands[AT_ISO ], length[AT_ISO ],
+ "^SISO=%u\r", (unsigned)bcs->channel + 1);
return 0;
}
@@ -419,7 +422,8 @@ int gigaset_isdn_setup_accept(struct at_state_t *at_state)
proto = 2; /* 0: Bitsynchron, 1: HDLC, 2: voice */
break;
default:
- err("invalid protocol: %u", bcs->proto2);
+ dev_err(at_state->cs->dev, "%s: invalid protocol: %u\n",
+ __func__, bcs->proto2);
return -EINVAL;
}
@@ -436,13 +440,15 @@ int gigaset_isdn_setup_accept(struct at_state_t *at_state)
bcs->commands[i] = NULL;
if (length[i] &&
!(bcs->commands[i] = kmalloc(length[i], GFP_ATOMIC))) {
- err("out of memory");
+ dev_err(at_state->cs->dev, "out of memory\n");
return -ENOMEM;
}
}
- snprintf(bcs->commands[AT_PROTO], length[AT_PROTO], "^SBPR=%u\r", proto);
- snprintf(bcs->commands[AT_ISO ], length[AT_ISO ], "^SISO=%u\r", (unsigned) bcs->channel + 1);
+ snprintf(bcs->commands[AT_PROTO], length[AT_PROTO],
+ "^SBPR=%u\r", proto);
+ snprintf(bcs->commands[AT_ISO ], length[AT_ISO ],
+ "^SISO=%u\r", (unsigned) bcs->channel + 1);
return 0;
}
@@ -473,7 +479,7 @@ int gigaset_isdn_icall(struct at_state_t *at_state)
response.parm.setup.si1 = 1;
response.parm.setup.si2 = 2;
} else {
- warn("RING ignored - unsupported BC %s",
+ dev_warn(cs->dev, "RING ignored - unsupported BC %s\n",
at_state->str_var[STR_ZBC]);
return ICALL_IGNORE;
}
@@ -491,18 +497,17 @@ int gigaset_isdn_icall(struct at_state_t *at_state)
response.parm.setup.eazmsn[0] = 0;
if (!bcs) {
- notice("no channel for incoming call");
- dbg(DEBUG_CMD, "Sending ICALLW");
+ dev_notice(cs->dev, "no channel for incoming call\n");
response.command = ISDN_STAT_ICALLW;
response.arg = 0; //FIXME
} else {
- dbg(DEBUG_CMD, "Sending ICALL");
+ gig_dbg(DEBUG_CMD, "Sending ICALL");
response.command = ISDN_STAT_ICALL;
response.arg = bcs->channel; //FIXME
}
response.driver = cs->myid;
retval = cs->iif.statcallb(&response);
- dbg(DEBUG_CMD, "Response: %d", retval);
+ gig_dbg(DEBUG_CMD, "Response: %d", retval);
switch (retval) {
case 0: /* no takers */
return ICALL_IGNORE;
@@ -512,7 +517,8 @@ int gigaset_isdn_icall(struct at_state_t *at_state)
case 2: /* reject */
return ICALL_REJECT;
case 3: /* incomplete */
- warn("LL requested unsupported feature: Incomplete Number");
+ dev_warn(cs->dev,
+ "LL requested unsupported feature: Incomplete Number\n");
return ICALL_IGNORE;
case 4: /* proceeding */
/* Gigaset will send ALERTING anyway.
@@ -520,10 +526,11 @@ int gigaset_isdn_icall(struct at_state_t *at_state)
*/
return ICALL_ACCEPT;
case 5: /* deflect */
- warn("LL requested unsupported feature: Call Deflection");
+ dev_warn(cs->dev,
+ "LL requested unsupported feature: Call Deflection\n");
return ICALL_IGNORE;
default:
- err("LL error %d on ICALL", retval);
+ dev_err(cs->dev, "LL error %d on ICALL\n", retval);
return ICALL_IGNORE;
}
}
@@ -533,7 +540,7 @@ int gigaset_register_to_LL(struct cardstate *cs, const char *isdnid)
{
isdn_if *iif = &cs->iif;
- dbg(DEBUG_ANY, "Register driver capabilities to LL");
+ gig_dbg(DEBUG_ANY, "Register driver capabilities to LL");
//iif->id[sizeof(iif->id) - 1]=0;
//strncpy(iif->id, isdnid, sizeof(iif->id) - 1);
@@ -542,26 +549,26 @@ int gigaset_register_to_LL(struct cardstate *cs, const char *isdnid)
return -ENOMEM; //FIXME EINVAL/...??
iif->owner = THIS_MODULE;
- iif->channels = cs->channels; /* I am supporting just one channel *//* I was supporting...*/
+ iif->channels = cs->channels;
iif->maxbufsize = MAX_BUF_SIZE;
- iif->features = ISDN_FEATURE_L2_TRANS | /* Our device is very advanced, therefore */
+ iif->features = ISDN_FEATURE_L2_TRANS |
ISDN_FEATURE_L2_HDLC |
#ifdef GIG_X75
ISDN_FEATURE_L2_X75I |
#endif
ISDN_FEATURE_L3_TRANS |
ISDN_FEATURE_P_EURO;
- iif->hl_hdrlen = HW_HDR_LEN; /* Area for storing ack */
+ iif->hl_hdrlen = HW_HDR_LEN; /* Area for storing ack */
iif->command = command_from_LL;
iif->writebuf_skb = writebuf_from_LL;
- iif->writecmd = NULL; /* Don't support isdnctrl */
- iif->readstat = NULL; /* Don't support isdnctrl */
- iif->rcvcallb_skb = NULL; /* Will be set by LL */
- iif->statcallb = NULL; /* Will be set by LL */
+ iif->writecmd = NULL; /* Don't support isdnctrl */
+ iif->readstat = NULL; /* Don't support isdnctrl */
+ iif->rcvcallb_skb = NULL; /* Will be set by LL */
+ iif->statcallb = NULL; /* Will be set by LL */
if (!register_isdn(iif))
return 0;
- cs->myid = iif->channels; /* Set my device id */
+ cs->myid = iif->channels; /* Set my device id */
return 1;
}
diff --git a/drivers/isdn/gigaset/interface.c b/drivers/isdn/gigaset/interface.c
index 3a81d9c6514..08e4c4eea14 100644
--- a/drivers/isdn/gigaset/interface.c
+++ b/drivers/isdn/gigaset/interface.c
@@ -9,8 +9,6 @@
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
* =====================================================================
- * Version: $Id: interface.c,v 1.14.4.15 2006/02/04 18:28:16 hjlipp Exp $
- * =====================================================================
*/
#include "gigaset.h"
@@ -24,7 +22,7 @@ static int if_lock(struct cardstate *cs, int *arg)
{
int cmd = *arg;
- dbg(DEBUG_IF, "%u: if_lock (%d)", cs->minor_index, cmd);
+ gig_dbg(DEBUG_IF, "%u: if_lock (%d)", cs->minor_index, cmd);
if (cmd > 1)
return -EINVAL;
@@ -35,7 +33,7 @@ static int if_lock(struct cardstate *cs, int *arg)
}
if (!cmd && atomic_read(&cs->mstate) == MS_LOCKED
- && atomic_read(&cs->connected)) {
+ && cs->connected) {
cs->ops->set_modem_ctrl(cs, 0, TIOCM_DTR|TIOCM_RTS);
cs->ops->baud_rate(cs, B115200);
cs->ops->set_line_ctrl(cs, CS8);
@@ -44,12 +42,12 @@ static int if_lock(struct cardstate *cs, int *arg)
cs->waiting = 1;
if (!gigaset_add_event(cs, &cs->at_state, EV_IF_LOCK,
- NULL, cmd, NULL)) {
+ NULL, cmd, NULL)) {
cs->waiting = 0;
return -ENOMEM;
}
- dbg(DEBUG_CMD, "scheduling IF_LOCK");
+ gig_dbg(DEBUG_CMD, "scheduling IF_LOCK");
gigaset_schedule_event(cs);
wait_event(cs->waitqueue, !cs->waiting);
@@ -68,7 +66,7 @@ static int if_version(struct cardstate *cs, unsigned arg[4])
static const unsigned compat[4] = GIG_COMPAT;
unsigned cmd = arg[0];
- dbg(DEBUG_IF, "%u: if_version (%d)", cs->minor_index, cmd);
+ gig_dbg(DEBUG_IF, "%u: if_version (%d)", cs->minor_index, cmd);
switch (cmd) {
case GIGVER_DRIVER:
@@ -80,12 +78,12 @@ static int if_version(struct cardstate *cs, unsigned arg[4])
case GIGVER_FWBASE:
cs->waiting = 1;
if (!gigaset_add_event(cs, &cs->at_state, EV_IF_VER,
- NULL, 0, arg)) {
+ NULL, 0, arg)) {
cs->waiting = 0;
return -ENOMEM;
}
- dbg(DEBUG_CMD, "scheduling IF_VER");
+ gig_dbg(DEBUG_CMD, "scheduling IF_VER");
gigaset_schedule_event(cs);
wait_event(cs->waitqueue, !cs->waiting);
@@ -101,7 +99,7 @@ static int if_version(struct cardstate *cs, unsigned arg[4])
static int if_config(struct cardstate *cs, int *arg)
{
- dbg(DEBUG_IF, "%u: if_config (%d)", cs->minor_index, *arg);
+ gig_dbg(DEBUG_IF, "%u: if_config (%d)", cs->minor_index, *arg);
if (*arg != 1)
return -EINVAL;
@@ -109,6 +107,11 @@ static int if_config(struct cardstate *cs, int *arg)
if (atomic_read(&cs->mstate) != MS_LOCKED)
return -EBUSY;
+ if (!cs->connected) {
+ err("not connected!");
+ return -ENODEV;
+ }
+
*arg = 0;
return gigaset_enterconfigmode(cs);
}
@@ -119,7 +122,7 @@ static int if_config(struct cardstate *cs, int *arg)
static int if_open(struct tty_struct *tty, struct file *filp);
static void if_close(struct tty_struct *tty, struct file *filp);
static int if_ioctl(struct tty_struct *tty, struct file *file,
- unsigned int cmd, unsigned long arg);
+ unsigned int cmd, unsigned long arg);
static int if_write_room(struct tty_struct *tty);
static int if_chars_in_buffer(struct tty_struct *tty);
static void if_throttle(struct tty_struct *tty);
@@ -127,9 +130,9 @@ static void if_unthrottle(struct tty_struct *tty);
static void if_set_termios(struct tty_struct *tty, struct termios *old);
static int if_tiocmget(struct tty_struct *tty, struct file *file);
static int if_tiocmset(struct tty_struct *tty, struct file *file,
- unsigned int set, unsigned int clear);
+ unsigned int set, unsigned int clear);
static int if_write(struct tty_struct *tty,
- const unsigned char *buf, int count);
+ const unsigned char *buf, int count);
static struct tty_operations if_ops = {
.open = if_open,
@@ -153,8 +156,8 @@ static int if_open(struct tty_struct *tty, struct file *filp)
struct cardstate *cs;
unsigned long flags;
- dbg(DEBUG_IF, "%d+%d: %s()", tty->driver->minor_start, tty->index,
- __FUNCTION__);
+ gig_dbg(DEBUG_IF, "%d+%d: %s()",
+ tty->driver->minor_start, tty->index, __func__);
tty->driver_data = NULL;
@@ -162,7 +165,7 @@ static int if_open(struct tty_struct *tty, struct file *filp)
if (!cs)
return -ENODEV;
- if (down_interruptible(&cs->sem))
+ if (mutex_lock_interruptible(&cs->mutex))
return -ERESTARTSYS; // FIXME -EINTR?
tty->driver_data = cs;
@@ -173,10 +176,9 @@ static int if_open(struct tty_struct *tty, struct file *filp)
cs->tty = tty;
spin_unlock_irqrestore(&cs->lock, flags);
tty->low_latency = 1; //FIXME test
- //FIXME
}
- up(&cs->sem);
+ mutex_unlock(&cs->mutex);
return 0;
}
@@ -187,30 +189,29 @@ static void if_close(struct tty_struct *tty, struct file *filp)
cs = (struct cardstate *) tty->driver_data;
if (!cs) {
- err("cs==NULL in %s", __FUNCTION__);
+ err("cs==NULL in %s", __func__);
return;
}
- dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __FUNCTION__);
+ gig_dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __func__);
- down(&cs->sem);
+ mutex_lock(&cs->mutex);
if (!cs->open_count)
- warn("%s: device not opened", __FUNCTION__);
+ warn("%s: device not opened", __func__);
else {
if (!--cs->open_count) {
spin_lock_irqsave(&cs->lock, flags);
cs->tty = NULL;
spin_unlock_irqrestore(&cs->lock, flags);
- //FIXME
}
}
- up(&cs->sem);
+ mutex_unlock(&cs->mutex);
}
static int if_ioctl(struct tty_struct *tty, struct file *file,
- unsigned int cmd, unsigned long arg)
+ unsigned int cmd, unsigned long arg)
{
struct cardstate *cs;
int retval = -ENODEV;
@@ -220,17 +221,17 @@ static int if_ioctl(struct tty_struct *tty, struct file *file,
cs = (struct cardstate *) tty->driver_data;
if (!cs) {
- err("cs==NULL in %s", __FUNCTION__);
+ err("cs==NULL in %s", __func__);
return -ENODEV;
}
- dbg(DEBUG_IF, "%u: %s(0x%x)", cs->minor_index, __FUNCTION__, cmd);
+ gig_dbg(DEBUG_IF, "%u: %s(0x%x)", cs->minor_index, __func__, cmd);
- if (down_interruptible(&cs->sem))
+ if (mutex_lock_interruptible(&cs->mutex))
return -ERESTARTSYS; // FIXME -EINTR?
if (!cs->open_count)
- warn("%s: device not opened", __FUNCTION__);
+ warn("%s: device not opened", __func__);
else {
retval = 0;
switch (cmd) {
@@ -250,37 +251,40 @@ static int if_ioctl(struct tty_struct *tty, struct file *file,
break;
case GIGASET_BRKCHARS:
//FIXME test if MS_LOCKED
- gigaset_dbg_buffer(DEBUG_IF, "GIGASET_BRKCHARS",
- 6, (const unsigned char *) arg, 1);
- if (!atomic_read(&cs->connected)) {
- dbg(DEBUG_ANY, "can't communicate with unplugged device");
+ if (!cs->connected) {
+ gig_dbg(DEBUG_ANY,
+ "can't communicate with unplugged device");
retval = -ENODEV;
break;
}
retval = copy_from_user(&buf,
- (const unsigned char __user *) arg, 6)
- ? -EFAULT : 0;
- if (retval >= 0)
+ (const unsigned char __user *) arg, 6)
+ ? -EFAULT : 0;
+ if (retval >= 0) {
+ gigaset_dbg_buffer(DEBUG_IF, "GIGASET_BRKCHARS",
+ 6, (const unsigned char *) arg);
retval = cs->ops->brkchars(cs, buf);
+ }
break;
case GIGASET_VERSION:
- retval = copy_from_user(version, (unsigned __user *) arg,
- sizeof version) ? -EFAULT : 0;
+ retval = copy_from_user(version,
+ (unsigned __user *) arg, sizeof version)
+ ? -EFAULT : 0;
if (retval >= 0)
retval = if_version(cs, version);
if (retval >= 0)
- retval = copy_to_user((unsigned __user *) arg, version,
- sizeof version)
- ? -EFAULT : 0;
+ retval = copy_to_user((unsigned __user *) arg,
+ version, sizeof version)
+ ? -EFAULT : 0;
break;
- default:
- dbg(DEBUG_ANY, "%s: arg not supported - 0x%04x",
- __FUNCTION__, cmd);
+ default:
+ gig_dbg(DEBUG_ANY, "%s: arg not supported - 0x%04x",
+ __func__, cmd);
retval = -ENOIOCTLCMD;
}
}
- up(&cs->sem);
+ mutex_unlock(&cs->mutex);
return retval;
}
@@ -292,25 +296,25 @@ static int if_tiocmget(struct tty_struct *tty, struct file *file)
cs = (struct cardstate *) tty->driver_data;
if (!cs) {
- err("cs==NULL in %s", __FUNCTION__);
+ err("cs==NULL in %s", __func__);
return -ENODEV;
}
- dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __FUNCTION__);
+ gig_dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __func__);
- if (down_interruptible(&cs->sem))
+ if (mutex_lock_interruptible(&cs->mutex))
return -ERESTARTSYS; // FIXME -EINTR?
// FIXME read from device?
retval = cs->control_state & (TIOCM_RTS|TIOCM_DTR);
- up(&cs->sem);
+ mutex_unlock(&cs->mutex);
return retval;
}
static int if_tiocmset(struct tty_struct *tty, struct file *file,
- unsigned int set, unsigned int clear)
+ unsigned int set, unsigned int clear)
{
struct cardstate *cs;
int retval;
@@ -318,18 +322,18 @@ static int if_tiocmset(struct tty_struct *tty, struct file *file,
cs = (struct cardstate *) tty->driver_data;
if (!cs) {
- err("cs==NULL in %s", __FUNCTION__);
+ err("cs==NULL in %s", __func__);
return -ENODEV;
}
- dbg(DEBUG_IF,
- "%u: %s(0x%x, 0x%x)", cs->minor_index, __FUNCTION__, set, clear);
+ gig_dbg(DEBUG_IF, "%u: %s(0x%x, 0x%x)",
+ cs->minor_index, __func__, set, clear);
- if (down_interruptible(&cs->sem))
+ if (mutex_lock_interruptible(&cs->mutex))
return -ERESTARTSYS; // FIXME -EINTR?
- if (!atomic_read(&cs->connected)) {
- dbg(DEBUG_ANY, "can't communicate with unplugged device");
+ if (!cs->connected) {
+ gig_dbg(DEBUG_ANY, "can't communicate with unplugged device");
retval = -ENODEV;
} else {
mc = (cs->control_state | set) & ~clear & (TIOCM_RTS|TIOCM_DTR);
@@ -337,7 +341,7 @@ static int if_tiocmset(struct tty_struct *tty, struct file *file,
cs->control_state = mc;
}
- up(&cs->sem);
+ mutex_unlock(&cs->mutex);
return retval;
}
@@ -349,29 +353,29 @@ static int if_write(struct tty_struct *tty, const unsigned char *buf, int count)
cs = (struct cardstate *) tty->driver_data;
if (!cs) {
- err("cs==NULL in %s", __FUNCTION__);
+ err("cs==NULL in %s", __func__);
return -ENODEV;
}
- dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __FUNCTION__);
+ gig_dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __func__);
- if (down_interruptible(&cs->sem))
+ if (mutex_lock_interruptible(&cs->mutex))
return -ERESTARTSYS; // FIXME -EINTR?
if (!cs->open_count)
- warn("%s: device not opened", __FUNCTION__);
+ warn("%s: device not opened", __func__);
else if (atomic_read(&cs->mstate) != MS_LOCKED) {
warn("can't write to unlocked device");
retval = -EBUSY;
- } else if (!atomic_read(&cs->connected)) {
- dbg(DEBUG_ANY, "can't write to unplugged device");
+ } else if (!cs->connected) {
+ gig_dbg(DEBUG_ANY, "can't write to unplugged device");
retval = -EBUSY; //FIXME
} else {
retval = cs->ops->write_cmd(cs, buf, count,
- &cs->if_wake_tasklet);
+ &cs->if_wake_tasklet);
}
- up(&cs->sem);
+ mutex_unlock(&cs->mutex);
return retval;
}
@@ -383,27 +387,27 @@ static int if_write_room(struct tty_struct *tty)
cs = (struct cardstate *) tty->driver_data;
if (!cs) {
- err("cs==NULL in %s", __FUNCTION__);
+ err("cs==NULL in %s", __func__);
return -ENODEV;
}
- dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __FUNCTION__);
+ gig_dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __func__);
- if (down_interruptible(&cs->sem))
+ if (mutex_lock_interruptible(&cs->mutex))
return -ERESTARTSYS; // FIXME -EINTR?
if (!cs->open_count)
- warn("%s: device not opened", __FUNCTION__);
+ warn("%s: device not opened", __func__);
else if (atomic_read(&cs->mstate) != MS_LOCKED) {
warn("can't write to unlocked device");
retval = -EBUSY; //FIXME
- } else if (!atomic_read(&cs->connected)) {
- dbg(DEBUG_ANY, "can't write to unplugged device");
+ } else if (!cs->connected) {
+ gig_dbg(DEBUG_ANY, "can't write to unplugged device");
retval = -EBUSY; //FIXME
} else
retval = cs->ops->write_room(cs);
- up(&cs->sem);
+ mutex_unlock(&cs->mutex);
return retval;
}
@@ -415,27 +419,27 @@ static int if_chars_in_buffer(struct tty_struct *tty)
cs = (struct cardstate *) tty->driver_data;
if (!cs) {
- err("cs==NULL in %s", __FUNCTION__);
+ err("cs==NULL in %s", __func__);
return -ENODEV;
}
- dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __FUNCTION__);
+ gig_dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __func__);
- if (down_interruptible(&cs->sem))
+ if (mutex_lock_interruptible(&cs->mutex))
return -ERESTARTSYS; // FIXME -EINTR?
if (!cs->open_count)
- warn("%s: device not opened", __FUNCTION__);
+ warn("%s: device not opened", __func__);
else if (atomic_read(&cs->mstate) != MS_LOCKED) {
warn("can't write to unlocked device");
retval = -EBUSY;
- } else if (!atomic_read(&cs->connected)) {
- dbg(DEBUG_ANY, "can't write to unplugged device");
+ } else if (!cs->connected) {
+ gig_dbg(DEBUG_ANY, "can't write to unplugged device");
retval = -EBUSY; //FIXME
} else
retval = cs->ops->chars_in_buffer(cs);
- up(&cs->sem);
+ mutex_unlock(&cs->mutex);
return retval;
}
@@ -446,21 +450,21 @@ static void if_throttle(struct tty_struct *tty)
cs = (struct cardstate *) tty->driver_data;
if (!cs) {
- err("cs==NULL in %s", __FUNCTION__);
+ err("cs==NULL in %s", __func__);
return;
}
- dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __FUNCTION__);
+ gig_dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __func__);
- down(&cs->sem);
+ mutex_lock(&cs->mutex);
if (!cs->open_count)
- warn("%s: device not opened", __FUNCTION__);
+ warn("%s: device not opened", __func__);
else {
//FIXME
}
- up(&cs->sem);
+ mutex_unlock(&cs->mutex);
}
static void if_unthrottle(struct tty_struct *tty)
@@ -469,21 +473,21 @@ static void if_unthrottle(struct tty_struct *tty)
cs = (struct cardstate *) tty->driver_data;
if (!cs) {
- err("cs==NULL in %s", __FUNCTION__);
+ err("cs==NULL in %s", __func__);
return;
}
- dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __FUNCTION__);
+ gig_dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __func__);
- down(&cs->sem);
+ mutex_lock(&cs->mutex);
if (!cs->open_count)
- warn("%s: device not opened", __FUNCTION__);
+ warn("%s: device not opened", __func__);
else {
//FIXME
}
- up(&cs->sem);
+ mutex_unlock(&cs->mutex);
}
static void if_set_termios(struct tty_struct *tty, struct termios *old)
@@ -496,21 +500,21 @@ static void if_set_termios(struct tty_struct *tty, struct termios *old)
cs = (struct cardstate *) tty->driver_data;
if (!cs) {
- err("cs==NULL in %s", __FUNCTION__);
+ err("cs==NULL in %s", __func__);
return;
}
- dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __FUNCTION__);
+ gig_dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __func__);
- down(&cs->sem);
+ mutex_lock(&cs->mutex);
if (!cs->open_count) {
- warn("%s: device not opened", __FUNCTION__);
+ warn("%s: device not opened", __func__);
goto out;
}
- if (!atomic_read(&cs->connected)) {
- dbg(DEBUG_ANY, "can't communicate with unplugged device");
+ if (!cs->connected) {
+ gig_dbg(DEBUG_ANY, "can't communicate with unplugged device");
goto out;
}
@@ -518,8 +522,8 @@ static void if_set_termios(struct tty_struct *tty, struct termios *old)
iflag = tty->termios->c_iflag;
cflag = tty->termios->c_cflag;
old_cflag = old ? old->c_cflag : cflag; //FIXME?
- dbg(DEBUG_IF, "%u: iflag %x cflag %x old %x", cs->minor_index,
- iflag, cflag, old_cflag);
+ gig_dbg(DEBUG_IF, "%u: iflag %x cflag %x old %x",
+ cs->minor_index, iflag, cflag, old_cflag);
/* get a local copy of the current port settings */
control_state = cs->control_state;
@@ -531,14 +535,15 @@ static void if_set_termios(struct tty_struct *tty, struct termios *old)
* Premature optimization is the root of all evil.
*/
- /* reassert DTR and (maybe) RTS on transition from B0 */
+ /* reassert DTR and (maybe) RTS on transition from B0 */
if ((old_cflag & CBAUD) == B0) {
new_state = control_state | TIOCM_DTR;
/* don't set RTS if using hardware flow control */
if (!(old_cflag & CRTSCTS))
new_state |= TIOCM_RTS;
- dbg(DEBUG_IF, "%u: from B0 - set DTR%s", cs->minor_index,
- (new_state & TIOCM_RTS) ? " only" : "/RTS");
+ gig_dbg(DEBUG_IF, "%u: from B0 - set DTR%s",
+ cs->minor_index,
+ (new_state & TIOCM_RTS) ? " only" : "/RTS");
cs->ops->set_modem_ctrl(cs, control_state, new_state);
control_state = new_state;
}
@@ -547,7 +552,7 @@ static void if_set_termios(struct tty_struct *tty, struct termios *old)
if ((cflag & CBAUD) == B0) {
/* Drop RTS and DTR */
- dbg(DEBUG_IF, "%u: to B0 - drop DTR/RTS", cs->minor_index);
+ gig_dbg(DEBUG_IF, "%u: to B0 - drop DTR/RTS", cs->minor_index);
new_state = control_state & ~(TIOCM_DTR | TIOCM_RTS);
cs->ops->set_modem_ctrl(cs, control_state, new_state);
control_state = new_state;
@@ -567,15 +572,17 @@ static void if_set_termios(struct tty_struct *tty, struct termios *old)
* Just do what we have seen with SniffUSB on Win98.
*/
/* Drop DTR/RTS if no flow control otherwise assert */
- dbg(DEBUG_IF, "%u: control_state %x", cs->minor_index, control_state);
+ gig_dbg(DEBUG_IF, "%u: control_state %x",
+ cs->minor_index, control_state);
new_state = control_state;
if ((iflag & IXOFF) || (iflag & IXON) || (cflag & CRTSCTS))
new_state |= TIOCM_DTR | TIOCM_RTS;
else
new_state &= ~(TIOCM_DTR | TIOCM_RTS);
if (new_state != control_state) {
- dbg(DEBUG_IF, "%u: new_state %x", cs->minor_index, new_state);
- gigaset_set_modem_ctrl(cs, control_state, new_state); // FIXME: mct_u232.c sets the old state here. is this a bug?
+ gig_dbg(DEBUG_IF, "%u: new_state %x",
+ cs->minor_index, new_state);
+ gigaset_set_modem_ctrl(cs, control_state, new_state);
control_state = new_state;
}
#endif
@@ -584,7 +591,7 @@ static void if_set_termios(struct tty_struct *tty, struct termios *old)
cs->control_state = control_state;
out:
- up(&cs->sem);
+ mutex_unlock(&cs->mutex);
}
@@ -600,7 +607,7 @@ static void if_wake(unsigned long data)
if ((tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) &&
tty->ldisc.write_wakeup) {
- dbg(DEBUG_IF, "write wakeup call");
+ gig_dbg(DEBUG_IF, "write wakeup call");
tty->ldisc.write_wakeup(tty);
}
@@ -635,14 +642,14 @@ void gigaset_if_free(struct cardstate *cs)
}
void gigaset_if_receive(struct cardstate *cs,
- unsigned char *buffer, size_t len)
+ unsigned char *buffer, size_t len)
{
unsigned long flags;
struct tty_struct *tty;
spin_lock_irqsave(&cs->lock, flags);
if ((tty = cs->tty) == NULL)
- dbg(DEBUG_ANY, "receive on closed device");
+ gig_dbg(DEBUG_ANY, "receive on closed device");
else {
tty_buffer_request_room(tty, len);
tty_insert_flip_string(tty, buffer, len);
@@ -655,13 +662,13 @@ EXPORT_SYMBOL_GPL(gigaset_if_receive);
/* gigaset_if_initdriver
* Initialize tty interface.
* parameters:
- * drv Driver
- * procname Name of the driver (e.g. for /proc/tty/drivers)
- * devname Name of the device files (prefix without minor number)
- * devfsname Devfs name of the device files without %d
+ * drv Driver
+ * procname Name of the driver (e.g. for /proc/tty/drivers)
+ * devname Name of the device files (prefix without minor number)
+ * devfsname Devfs name of the device files without %d
*/
void gigaset_if_initdriver(struct gigaset_driver *drv, const char *procname,
- const char *devname, const char *devfsname)
+ const char *devname, const char *devfsname)
{
unsigned minors = drv->minors;
int ret;
@@ -696,7 +703,7 @@ void gigaset_if_initdriver(struct gigaset_driver *drv, const char *procname,
warn("failed to register tty driver (error %d)", ret);
goto error;
}
- dbg(DEBUG_IF, "tty driver initialized");
+ gig_dbg(DEBUG_IF, "tty driver initialized");
drv->have_tty = 1;
return;
diff --git a/drivers/isdn/gigaset/isocdata.c b/drivers/isdn/gigaset/isocdata.c
index 5744eb91b31..8667daaa1a8 100644
--- a/drivers/isdn/gigaset/isocdata.c
+++ b/drivers/isdn/gigaset/isocdata.c
@@ -10,10 +10,6 @@
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
* =====================================================================
- * ToDo: ...
- * =====================================================================
- * Version: $Id: isocdata.c,v 1.2.2.5 2005/11/13 23:05:19 hjlipp Exp $
- * =====================================================================
*/
#include "gigaset.h"
@@ -87,14 +83,14 @@ static inline int isowbuf_startwrite(struct isowbuf_t *iwb)
{
if (!atomic_dec_and_test(&iwb->writesem)) {
atomic_inc(&iwb->writesem);
- dbg(DEBUG_ISO,
- "%s: couldn't acquire iso write semaphore", __func__);
+ gig_dbg(DEBUG_ISO, "%s: couldn't acquire iso write semaphore",
+ __func__);
return 0;
}
#ifdef CONFIG_GIGASET_DEBUG
- dbg(DEBUG_ISO,
- "%s: acquired iso write semaphore, data[write]=%02x, nbits=%d",
- __func__, iwb->data[atomic_read(&iwb->write)], iwb->wbits);
+ gig_dbg(DEBUG_ISO,
+ "%s: acquired iso write semaphore, data[write]=%02x, nbits=%d",
+ __func__, iwb->data[atomic_read(&iwb->write)], iwb->wbits);
#endif
return 1;
}
@@ -147,7 +143,7 @@ static inline void isowbuf_putflag(struct isowbuf_t *iwb)
/* recover the idle flag byte */
write = atomic_read(&iwb->write);
iwb->idle = iwb->data[write];
- dbg(DEBUG_ISO, "idle fill byte %02x", iwb->idle);
+ gig_dbg(DEBUG_ISO, "idle fill byte %02x", iwb->idle);
/* mask extraneous bits in buffer */
iwb->data[write] &= (1 << iwb->wbits) - 1;
}
@@ -166,15 +162,14 @@ int gigaset_isowbuf_getbytes(struct isowbuf_t *iwb, int size)
read = atomic_read(&iwb->nextread);
write = atomic_read(&iwb->write);
if (likely(read == write)) {
- //dbg(DEBUG_STREAM, "%s: send buffer empty", __func__);
/* return idle frame */
return read < BAS_OUTBUFPAD ?
- BAS_OUTBUFSIZE : read - BAS_OUTBUFPAD;
+ BAS_OUTBUFSIZE : read - BAS_OUTBUFPAD;
}
limit = read + size;
- dbg(DEBUG_STREAM,
- "%s: read=%d write=%d limit=%d", __func__, read, write, limit);
+ gig_dbg(DEBUG_STREAM, "%s: read=%d write=%d limit=%d",
+ __func__, read, write, limit);
#ifdef CONFIG_GIGASET_DEBUG
if (unlikely(size < 0 || size > BAS_OUTBUFPAD)) {
err("invalid size %d", size);
@@ -196,11 +191,12 @@ int gigaset_isowbuf_getbytes(struct isowbuf_t *iwb, int size)
return -EBUSY;
/* write position could have changed */
if (limit >= (write = atomic_read(&iwb->write))) {
- pbyte = iwb->data[write]; /* save partial byte */
+ pbyte = iwb->data[write]; /* save
+ partial byte */
limit = write + BAS_OUTBUFPAD;
- dbg(DEBUG_STREAM,
- "%s: filling %d->%d with %02x",
- __func__, write, limit, iwb->idle);
+ gig_dbg(DEBUG_STREAM,
+ "%s: filling %d->%d with %02x",
+ __func__, write, limit, iwb->idle);
if (write + BAS_OUTBUFPAD < BAS_OUTBUFSIZE)
memset(iwb->data + write, iwb->idle,
BAS_OUTBUFPAD);
@@ -211,9 +207,11 @@ int gigaset_isowbuf_getbytes(struct isowbuf_t *iwb, int size)
- write);
limit = 0;
}
- dbg(DEBUG_STREAM, "%s: restoring %02x at %d",
- __func__, pbyte, limit);
- iwb->data[limit] = pbyte; /* restore partial byte */
+ gig_dbg(DEBUG_STREAM,
+ "%s: restoring %02x at %d",
+ __func__, pbyte, limit);
+ iwb->data[limit] = pbyte; /* restore
+ partial byte */
atomic_set(&iwb->write, limit);
}
isowbuf_donewrite(iwb);
@@ -242,19 +240,17 @@ int gigaset_isowbuf_getbytes(struct isowbuf_t *iwb, int size)
* write hex bytes to syslog for debugging
*/
static inline void dump_bytes(enum debuglevel level, const char *tag,
- unsigned char *bytes, int count)
+ unsigned char *bytes, int count)
{
#ifdef CONFIG_GIGASET_DEBUG
unsigned char c;
static char dbgline[3 * 32 + 1];
static const char hexdigit[] = "0123456789abcdef";
int i = 0;
- IFNULLRET(tag);
- IFNULLRET(bytes);
while (count-- > 0) {
if (i > sizeof(dbgline) - 4) {
dbgline[i] = '\0';
- dbg(level, "%s:%s", tag, dbgline);
+ gig_dbg(level, "%s:%s", tag, dbgline);
i = 0;
}
c = *bytes++;
@@ -264,7 +260,7 @@ static inline void dump_bytes(enum debuglevel level, const char *tag,
dbgline[i++] = hexdigit[c & 0x0f];
}
dbgline[i] = '\0';
- dbg(level, "%s:%s", tag, dbgline);
+ gig_dbg(level, "%s:%s", tag, dbgline);
#endif
}
@@ -380,7 +376,7 @@ static u16 stufftab[5 * 256] = {
*/
static inline int hdlc_bitstuff_byte(struct isowbuf_t *iwb, unsigned char cin,
- int ones)
+ int ones)
{
u16 stuff;
int shiftinc, newones;
@@ -422,7 +418,7 @@ static inline int hdlc_bitstuff_byte(struct isowbuf_t *iwb, unsigned char cin,
*/
static inline int hdlc_buildframe(struct isowbuf_t *iwb,
- unsigned char *in, int count)
+ unsigned char *in, int count)
{
int ones;
u16 fcs;
@@ -431,8 +427,8 @@ static inline int hdlc_buildframe(struct isowbuf_t *iwb,
if (isowbuf_freebytes(iwb) < count + count / 5 + 6 ||
!isowbuf_startwrite(iwb)) {
- dbg(DEBUG_ISO, "%s: %d bytes free -> -EAGAIN",
- __func__, isowbuf_freebytes(iwb));
+ gig_dbg(DEBUG_ISO, "%s: %d bytes free -> -EAGAIN",
+ __func__, isowbuf_freebytes(iwb));
return -EAGAIN;
}
@@ -484,11 +480,11 @@ static inline int trans_buildframe(struct isowbuf_t *iwb,
if (isowbuf_freebytes(iwb) < count ||
!isowbuf_startwrite(iwb)) {
- dbg(DEBUG_ISO, "can't put %d bytes", count);
+ gig_dbg(DEBUG_ISO, "can't put %d bytes", count);
return -EAGAIN;
}
- dbg(DEBUG_STREAM, "put %d bytes", count);
+ gig_dbg(DEBUG_STREAM, "put %d bytes", count);
write = atomic_read(&iwb->write);
do {
c = gigaset_invtab[*in++];
@@ -508,11 +504,13 @@ int gigaset_isoc_buildframe(struct bc_state *bcs, unsigned char *in, int len)
switch (bcs->proto2) {
case ISDN_PROTO_L2_HDLC:
result = hdlc_buildframe(bcs->hw.bas->isooutbuf, in, len);
- dbg(DEBUG_ISO, "%s: %d bytes HDLC -> %d", __func__, len, result);
+ gig_dbg(DEBUG_ISO, "%s: %d bytes HDLC -> %d",
+ __func__, len, result);
break;
default: /* assume transparent */
result = trans_buildframe(bcs->hw.bas->isooutbuf, in, len);
- dbg(DEBUG_ISO, "%s: %d bytes trans -> %d", __func__, len, result);
+ gig_dbg(DEBUG_ISO, "%s: %d bytes trans -> %d",
+ __func__, len, result);
}
return result;
}
@@ -528,13 +526,13 @@ static inline void hdlc_putbyte(unsigned char c, struct bc_state *bcs)
return;
}
if (unlikely(bcs->skb->len == SBUFSIZE)) {
- warn("received oversized packet discarded");
+ dev_warn(bcs->cs->dev, "received oversized packet discarded\n");
bcs->hw.bas->giants++;
dev_kfree_skb_any(bcs->skb);
bcs->skb = NULL;
return;
}
- *gigaset_skb_put_quick(bcs->skb, 1) = c;
+ *__skb_put(bcs->skb, 1) = c;
}
/* hdlc_flush
@@ -549,7 +547,7 @@ static inline void hdlc_flush(struct bc_state *bcs)
if ((bcs->skb = dev_alloc_skb(SBUFSIZE + HW_HDR_LEN)) != NULL)
skb_reserve(bcs->skb, HW_HDR_LEN);
else
- err("could not allocate skb");
+ dev_err(bcs->cs->dev, "could not allocate skb\n");
}
/* reset packet state */
@@ -571,23 +569,25 @@ static inline void hdlc_done(struct bc_state *bcs)
if ((procskb = bcs->skb) == NULL) {
/* previous error */
- dbg(DEBUG_ISO, "%s: skb=NULL", __func__);
+ gig_dbg(DEBUG_ISO, "%s: skb=NULL", __func__);
gigaset_rcv_error(NULL, bcs->cs, bcs);
} else if (procskb->len < 2) {
- notice("received short frame (%d octets)", procskb->len);
+ dev_notice(bcs->cs->dev, "received short frame (%d octets)\n",
+ procskb->len);
bcs->hw.bas->runts++;
gigaset_rcv_error(procskb, bcs->cs, bcs);
} else if (bcs->fcs != PPP_GOODFCS) {
- notice("frame check error (0x%04x)", bcs->fcs);
+ dev_notice(bcs->cs->dev, "frame check error (0x%04x)\n",
+ bcs->fcs);
bcs->hw.bas->fcserrs++;
gigaset_rcv_error(procskb, bcs->cs, bcs);
} else {
procskb->len -= 2; /* subtract FCS */
procskb->tail -= 2;
- dbg(DEBUG_ISO,
- "%s: good frame (%d octets)", __func__, procskb->len);
+ gig_dbg(DEBUG_ISO, "%s: good frame (%d octets)",
+ __func__, procskb->len);
dump_bytes(DEBUG_STREAM,
- "rcv data", procskb->data, procskb->len);
+ "rcv data", procskb->data, procskb->len);
bcs->hw.bas->goodbytes += procskb->len;
gigaset_rcv_skb(procskb, bcs->cs, bcs);
}
@@ -595,7 +595,7 @@ static inline void hdlc_done(struct bc_state *bcs)
if ((bcs->skb = dev_alloc_skb(SBUFSIZE + HW_HDR_LEN)) != NULL)
skb_reserve(bcs->skb, HW_HDR_LEN);
else
- err("could not allocate skb");
+ dev_err(bcs->cs->dev, "could not allocate skb\n");
bcs->fcs = PPP_INITFCS;
}
@@ -610,14 +610,14 @@ static inline void hdlc_frag(struct bc_state *bcs, unsigned inbits)
return;
}
- notice("received partial byte (%d bits)", inbits);
+ dev_notice(bcs->cs->dev, "received partial byte (%d bits)\n", inbits);
bcs->hw.bas->alignerrs++;
gigaset_rcv_error(bcs->skb, bcs->cs, bcs);
if ((bcs->skb = dev_alloc_skb(SBUFSIZE + HW_HDR_LEN)) != NULL)
skb_reserve(bcs->skb, HW_HDR_LEN);
else
- err("could not allocate skb");
+ dev_err(bcs->cs->dev, "could not allocate skb\n");
bcs->fcs = PPP_INITFCS;
}
@@ -659,16 +659,12 @@ static unsigned char bitcounts[256] = {
* bcs receiving B channel structure
*/
static inline void hdlc_unpack(unsigned char *src, unsigned count,
- struct bc_state *bcs)
+ struct bc_state *bcs)
{
- struct bas_bc_state *ubc;
+ struct bas_bc_state *ubc = bcs->hw.bas;
int inputstate;
unsigned seqlen, inbyte, inbits;
- IFNULLRET(bcs);
- ubc = bcs->hw.bas;
- IFNULLRET(ubc);
-
/* load previous state:
* inputstate = set of flag bits:
* - INS_flag_hunt: no complete opening flag received since connection setup or last abort
@@ -856,7 +852,7 @@ static inline void hdlc_unpack(unsigned char *src, unsigned count,
* bcs receiving B channel structure
*/
static inline void trans_receive(unsigned char *src, unsigned count,
- struct bc_state *bcs)
+ struct bc_state *bcs)
{
struct sk_buff *skb;
int dobytes;
@@ -870,7 +866,7 @@ static inline void trans_receive(unsigned char *src, unsigned count,
if (unlikely((skb = bcs->skb) == NULL)) {
bcs->skb = skb = dev_alloc_skb(SBUFSIZE + HW_HDR_LEN);
if (!skb) {
- err("could not allocate skb");
+ dev_err(bcs->cs->dev, "could not allocate skb\n");
return;
}
skb_reserve(skb, HW_HDR_LEN);
@@ -888,7 +884,8 @@ static inline void trans_receive(unsigned char *src, unsigned count,
gigaset_rcv_skb(skb, bcs->cs, bcs);
bcs->skb = skb = dev_alloc_skb(SBUFSIZE + HW_HDR_LEN);
if (!skb) {
- err("could not allocate skb");
+ dev_err(bcs->cs->dev,
+ "could not allocate skb\n");
return;
}
skb_reserve(bcs->skb, HW_HDR_LEN);
@@ -921,8 +918,8 @@ static void cmd_loop(unsigned char *src, int numbytes, struct inbuf_t *inbuf)
case '\r':
case '\n':
/* end of line */
- dbg(DEBUG_TRANSCMD, "%s: End of Command (%d Bytes)",
- __func__, cbytes);
+ gig_dbg(DEBUG_TRANSCMD, "%s: End of Command (%d Bytes)",
+ __func__, cbytes);
cs->cbytes = cbytes;
gigaset_handle_modem_response(cs);
cbytes = 0;
@@ -932,7 +929,7 @@ static void cmd_loop(unsigned char *src, int numbytes, struct inbuf_t *inbuf)
if (cbytes < MAX_RESP_SIZE - 1)
cbytes++;
else
- warn("response too large");
+ dev_warn(cs->dev, "response too large\n");
}
}
@@ -951,27 +948,27 @@ void gigaset_isoc_input(struct inbuf_t *inbuf)
head = atomic_read(&inbuf->head);
while (head != (tail = atomic_read(&inbuf->tail))) {
- dbg(DEBUG_INTR, "buffer state: %u -> %u", head, tail);
+ gig_dbg(DEBUG_INTR, "buffer state: %u -> %u", head, tail);
if (head > tail)
tail = RBUFSIZE;
src = inbuf->data + head;
numbytes = tail - head;
- dbg(DEBUG_INTR, "processing %u bytes", numbytes);
+ gig_dbg(DEBUG_INTR, "processing %u bytes", numbytes);
if (atomic_read(&cs->mstate) == MS_LOCKED) {
gigaset_dbg_buffer(DEBUG_LOCKCMD, "received response",
- numbytes, src, 0);
+ numbytes, src);
gigaset_if_receive(inbuf->cs, src, numbytes);
} else {
gigaset_dbg_buffer(DEBUG_CMD, "received response",
- numbytes, src, 0);
+ numbytes, src);
cmd_loop(src, numbytes, inbuf);
}
head += numbytes;
if (head == RBUFSIZE)
head = 0;
- dbg(DEBUG_INTR, "setting head to %u", head);
+ gig_dbg(DEBUG_INTR, "setting head to %u", head);
atomic_set(&inbuf->head, head);
}
}
@@ -992,18 +989,22 @@ void gigaset_isoc_input(struct inbuf_t *inbuf)
*/
int gigaset_isoc_send_skb(struct bc_state *bcs, struct sk_buff *skb)
{
- int len;
+ int len = skb->len;
+ unsigned long flags;
- IFNULLRETVAL(bcs, -EFAULT);
- IFNULLRETVAL(skb, -EFAULT);
- len = skb->len;
+ spin_lock_irqsave(&bcs->cs->lock, flags);
+ if (!bcs->cs->connected) {
+ spin_unlock_irqrestore(&bcs->cs->lock, flags);
+ return -ENODEV;
+ }
skb_queue_tail(&bcs->squeue, skb);
- dbg(DEBUG_ISO,
- "%s: skb queued, qlen=%d", __func__, skb_queue_len(&bcs->squeue));
+ gig_dbg(DEBUG_ISO, "%s: skb queued, qlen=%d",
+ __func__, skb_queue_len(&bcs->squeue));
/* tasklet submits URB if necessary */
tasklet_schedule(&bcs->hw.bas->sent_tasklet);
+ spin_unlock_irqrestore(&bcs->cs->lock, flags);
return len; /* ok so far */
}
diff --git a/drivers/isdn/gigaset/proc.c b/drivers/isdn/gigaset/proc.c
index c6915fa2be6..d267a636b53 100644
--- a/drivers/isdn/gigaset/proc.c
+++ b/drivers/isdn/gigaset/proc.c
@@ -1,7 +1,7 @@
/*
* Stuff used by all variants of the driver
*
- * Copyright (c) 2001 by Stefan Eilers <Eilers.Stefan@epost.de>,
+ * Copyright (c) 2001 by Stefan Eilers,
* Hansjoerg Lipp <hjlipp@web.de>,
* Tilman Schmidt <tilman@imap.cc>.
*
@@ -11,26 +11,29 @@
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
* =====================================================================
- * ToDo: ...
- * =====================================================================
- * Version: $Id: proc.c,v 1.5.2.13 2006/02/04 18:28:16 hjlipp Exp $
- * =====================================================================
*/
#include "gigaset.h"
#include <linux/ctype.h>
-static ssize_t show_cidmode(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_cidmode(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
- struct usb_interface *intf = to_usb_interface(dev);
- struct cardstate *cs = usb_get_intfdata(intf);
- return sprintf(buf, "%d\n", atomic_read(&cs->cidmode)); // FIXME use scnprintf for 13607 bit architectures (if PAGE_SIZE==4096)
+ int ret;
+ unsigned long flags;
+ struct cardstate *cs = dev_get_drvdata(dev);
+
+ spin_lock_irqsave(&cs->lock, flags);
+ ret = sprintf(buf, "%u\n", cs->cidmode);
+ spin_unlock_irqrestore(&cs->lock, flags);
+
+ return ret;
}
-static ssize_t set_cidmode(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+static ssize_t set_cidmode(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
{
- struct usb_interface *intf = to_usb_interface(dev);
- struct cardstate *cs = usb_get_intfdata(intf);
+ struct cardstate *cs = dev_get_drvdata(dev);
long int value;
char *end;
@@ -41,23 +44,23 @@ static ssize_t set_cidmode(struct device *dev, struct device_attribute *attr, co
if (value < 0 || value > 1)
return -EINVAL;
- if (down_interruptible(&cs->sem))
+ if (mutex_lock_interruptible(&cs->mutex))
return -ERESTARTSYS; // FIXME -EINTR?
cs->waiting = 1;
if (!gigaset_add_event(cs, &cs->at_state, EV_PROC_CIDMODE,
- NULL, value, NULL)) {
+ NULL, value, NULL)) {
cs->waiting = 0;
- up(&cs->sem);
+ mutex_unlock(&cs->mutex);
return -ENOMEM;
}
- dbg(DEBUG_CMD, "scheduling PROC_CIDMODE");
+ gig_dbg(DEBUG_CMD, "scheduling PROC_CIDMODE");
gigaset_schedule_event(cs);
wait_event(cs->waitqueue, !cs->waiting);
- up(&cs->sem);
+ mutex_unlock(&cs->mutex);
return count;
}
@@ -65,17 +68,15 @@ static ssize_t set_cidmode(struct device *dev, struct device_attribute *attr, co
static DEVICE_ATTR(cidmode, S_IRUGO|S_IWUSR, show_cidmode, set_cidmode);
/* free sysfs for device */
-void gigaset_free_dev_sysfs(struct usb_interface *interface)
+void gigaset_free_dev_sysfs(struct cardstate *cs)
{
- dbg(DEBUG_INIT, "removing sysfs entries");
- device_remove_file(&interface->dev, &dev_attr_cidmode);
+ gig_dbg(DEBUG_INIT, "removing sysfs entries");
+ device_remove_file(cs->dev, &dev_attr_cidmode);
}
-EXPORT_SYMBOL_GPL(gigaset_free_dev_sysfs);
/* initialize sysfs for device */
-void gigaset_init_dev_sysfs(struct usb_interface *interface)
+void gigaset_init_dev_sysfs(struct cardstate *cs)
{
- dbg(DEBUG_INIT, "setting up sysfs");
- device_create_file(&interface->dev, &dev_attr_cidmode);
+ gig_dbg(DEBUG_INIT, "setting up sysfs");
+ device_create_file(cs->dev, &dev_attr_cidmode);
}
-EXPORT_SYMBOL_GPL(gigaset_init_dev_sysfs);
diff --git a/drivers/isdn/gigaset/usb-gigaset.c b/drivers/isdn/gigaset/usb-gigaset.c
index 323fc7349de..bfb73fd5077 100644
--- a/drivers/isdn/gigaset/usb-gigaset.c
+++ b/drivers/isdn/gigaset/usb-gigaset.c
@@ -1,7 +1,7 @@
/*
* USB driver for Gigaset 307x directly or using M105 Data.
*
- * Copyright (c) 2001 by Stefan Eilers <Eilers.Stefan@epost.de>
+ * Copyright (c) 2001 by Stefan Eilers
* and Hansjoerg Lipp <hjlipp@web.de>.
*
* This driver was derived from the USB skeleton driver by
@@ -13,10 +13,6 @@
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
* =====================================================================
- * ToDo: ...
- * =====================================================================
- * Version: $Id: usb-gigaset.c,v 1.85.4.18 2006/02/04 18:28:16 hjlipp Exp $
- * =====================================================================
*/
#include "gigaset.h"
@@ -29,7 +25,7 @@
#include <linux/moduleparam.h>
/* Version Information */
-#define DRIVER_AUTHOR "Hansjoerg Lipp <hjlipp@web.de>, Stefan Eilers <Eilers.Stefan@epost.de>"
+#define DRIVER_AUTHOR "Hansjoerg Lipp <hjlipp@web.de>, Stefan Eilers"
#define DRIVER_DESC "USB Driver for Gigaset 307x using M105"
/* Module parameters */
@@ -62,10 +58,6 @@ static struct usb_device_id gigaset_table [] = {
MODULE_DEVICE_TABLE(usb, gigaset_table);
-/* Get a minor range for your devices from the usb maintainer */
-#define USB_SKEL_MINOR_BASE 200
-
-
/*
* Control requests (empty fields: 00)
*
@@ -114,7 +106,7 @@ MODULE_DEVICE_TABLE(usb, gigaset_table);
*/
static int gigaset_probe(struct usb_interface *interface,
- const struct usb_device_id *id);
+ const struct usb_device_id *id);
static void gigaset_disconnect(struct usb_interface *interface);
static struct gigaset_driver *driver = NULL;
@@ -122,29 +114,29 @@ static struct cardstate *cardstate = NULL;
/* usb specific object needed to register this driver with the usb subsystem */
static struct usb_driver gigaset_usb_driver = {
- .name = GIGASET_MODULENAME,
- .probe = gigaset_probe,
- .disconnect = gigaset_disconnect,
- .id_table = gigaset_table,
+ .name = GIGASET_MODULENAME,
+ .probe = gigaset_probe,
+ .disconnect = gigaset_disconnect,
+ .id_table = gigaset_table,
};
struct usb_cardstate {
- struct usb_device *udev; /* save off the usb device pointer */
- struct usb_interface *interface; /* the interface for this device */
- atomic_t busy; /* bulk output in progress */
-
- /* Output buffer for commands (M105: and data)*/
- unsigned char *bulk_out_buffer; /* the buffer to send data */
- int bulk_out_size; /* the size of the send buffer */
- __u8 bulk_out_endpointAddr; /* the address of the bulk out endpoint */
- struct urb *bulk_out_urb; /* the urb used to transmit data */
-
- /* Input buffer for command responses (M105: and data)*/
- int rcvbuf_size; /* the size of the receive buffer */
- struct urb *read_urb; /* the urb used to receive data */
- __u8 int_in_endpointAddr; /* the address of the bulk in endpoint */
-
- char bchars[6]; /* req. 0x19 */
+ struct usb_device *udev; /* usb device pointer */
+ struct usb_interface *interface; /* interface for this device */
+ atomic_t busy; /* bulk output in progress */
+
+ /* Output buffer */
+ unsigned char *bulk_out_buffer;
+ int bulk_out_size;
+ __u8 bulk_out_endpointAddr;
+ struct urb *bulk_out_urb;
+
+ /* Input buffer */
+ int rcvbuf_size;
+ struct urb *read_urb;
+ __u8 int_in_endpointAddr;
+
+ char bchars[6]; /* for request 0x19 */
};
struct usb_bc_state {};
@@ -157,19 +149,20 @@ static inline unsigned tiocm_to_gigaset(unsigned state)
#ifdef CONFIG_GIGASET_UNDOCREQ
/* WARNING: EXPERIMENTAL! */
static int gigaset_set_modem_ctrl(struct cardstate *cs, unsigned old_state,
- unsigned new_state)
+ unsigned new_state)
{
+ struct usb_device *udev = cs->hw.usb->udev;
unsigned mask, val;
int r;
mask = tiocm_to_gigaset(old_state ^ new_state);
val = tiocm_to_gigaset(new_state);
- dbg(DEBUG_USBREQ, "set flags 0x%02x with mask 0x%02x", val, mask);
- r = usb_control_msg(cs->hw.usb->udev,
- usb_sndctrlpipe(cs->hw.usb->udev, 0), 7, 0x41,
- (val & 0xff) | ((mask & 0xff) << 8), 0,
- NULL, 0, 2000 /*timeout??*/); // don't use this in an interrupt/BH
+ gig_dbg(DEBUG_USBREQ, "set flags 0x%02x with mask 0x%02x", val, mask);
+ // don't use this in an interrupt/BH
+ r = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 7, 0x41,
+ (val & 0xff) | ((mask & 0xff) << 8), 0,
+ NULL, 0, 2000 /* timeout? */);
if (r < 0)
return r;
//..
@@ -178,30 +171,29 @@ static int gigaset_set_modem_ctrl(struct cardstate *cs, unsigned old_state,
static int set_value(struct cardstate *cs, u8 req, u16 val)
{
+ struct usb_device *udev = cs->hw.usb->udev;
int r, r2;
- dbg(DEBUG_USBREQ, "request %02x (%04x)", (unsigned)req, (unsigned)val);
- r = usb_control_msg(cs->hw.usb->udev,
- usb_sndctrlpipe(cs->hw.usb->udev, 0), 0x12, 0x41,
- 0xf /*?*/, 0,
- NULL, 0, 2000 /*?*/); /* no idea, what this does */
+ gig_dbg(DEBUG_USBREQ, "request %02x (%04x)",
+ (unsigned)req, (unsigned)val);
+ r = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x12, 0x41,
+ 0xf /*?*/, 0, NULL, 0, 2000 /*?*/);
+ /* no idea what this does */
if (r < 0) {
- err("error %d on request 0x12", -r);
+ dev_err(&udev->dev, "error %d on request 0x12\n", -r);
return r;
}
- r = usb_control_msg(cs->hw.usb->udev,
- usb_sndctrlpipe(cs->hw.usb->udev, 0), req, 0x41,
- val, 0,
- NULL, 0, 2000 /*?*/);
+ r = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), req, 0x41,
+ val, 0, NULL, 0, 2000 /*?*/);
if (r < 0)
- err("error %d on request 0x%02x", -r, (unsigned)req);
+ dev_err(&udev->dev, "error %d on request 0x%02x\n",
+ -r, (unsigned)req);
- r2 = usb_control_msg(cs->hw.usb->udev,
- usb_sndctrlpipe(cs->hw.usb->udev, 0), 0x19, 0x41,
- 0, 0, cs->hw.usb->bchars, 6, 2000 /*?*/);
+ r2 = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x19, 0x41,
+ 0, 0, cs->hw.usb->bchars, 6, 2000 /*?*/);
if (r2 < 0)
- err("error %d on request 0x19", -r2);
+ dev_err(&udev->dev, "error %d on request 0x19\n", -r2);
return r < 0 ? r : (r2 < 0 ? r2 : 0);
}
@@ -229,8 +221,8 @@ static int gigaset_baud_rate(struct cardstate *cs, unsigned cflag)
case B115200: rate = 115200; break;
default:
rate = 9600;
- err("unsupported baudrate request 0x%x,"
- " using default of B9600", cflag);
+ dev_err(cs->dev, "unsupported baudrate request 0x%x,"
+ " using default of B9600\n", cflag);
}
val = 0x383fff / rate + 1;
@@ -259,7 +251,7 @@ static int gigaset_set_line_ctrl(struct cardstate *cs, unsigned cflag)
case CS8:
val |= 8 << 8; break;
default:
- err("CSIZE was not CS5-CS8, using default of 8");
+ dev_err(cs->dev, "CSIZE was not CS5-CS8, using default of 8\n");
val |= 8 << 8;
break;
}
@@ -277,7 +269,7 @@ static int gigaset_set_line_ctrl(struct cardstate *cs, unsigned cflag)
#else
static int gigaset_set_modem_ctrl(struct cardstate *cs, unsigned old_state,
- unsigned new_state)
+ unsigned new_state)
{
return -EINVAL;
}
@@ -309,15 +301,12 @@ static int gigaset_close_bchannel(struct bc_state *bcs)
return 0;
}
-//void send_ack_to_LL(void *data);
static int write_modem(struct cardstate *cs);
static int send_cb(struct cardstate *cs, struct cmdbuf_t *cb);
-/* Handling of send queue. If there is already a skb opened, put data to
- * the transfer buffer by calling "write_modem". Otherwise take a new skb out of the queue.
- * This function will be called by the ISR via "transmit_chars" (USB: B-Channel Bulk callback handler
- * via immediate task queue) or by writebuf_from_LL if the LL wants to transmit data.
+/* Write tasklet handler: Continue sending current skb, or send command, or
+ * start sending an skb from the send queue.
*/
static void gigaset_modem_fill(unsigned long data)
{
@@ -327,10 +316,10 @@ static void gigaset_modem_fill(unsigned long data)
unsigned long flags;
int again;
- dbg(DEBUG_OUTPUT, "modem_fill");
+ gig_dbg(DEBUG_OUTPUT, "modem_fill");
if (atomic_read(&cs->hw.usb->busy)) {
- dbg(DEBUG_OUTPUT, "modem_fill: busy");
+ gig_dbg(DEBUG_OUTPUT, "modem_fill: busy");
return;
}
@@ -341,26 +330,27 @@ static void gigaset_modem_fill(unsigned long data)
cb = cs->cmdbuf;
spin_unlock_irqrestore(&cs->cmdlock, flags);
if (cb) { /* commands to send? */
- dbg(DEBUG_OUTPUT, "modem_fill: cb");
+ gig_dbg(DEBUG_OUTPUT, "modem_fill: cb");
if (send_cb(cs, cb) < 0) {
- dbg(DEBUG_OUTPUT,
- "modem_fill: send_cb failed");
- again = 1; /* no callback will be called! */
+ gig_dbg(DEBUG_OUTPUT,
+ "modem_fill: send_cb failed");
+ again = 1; /* no callback will be
+ called! */
}
} else { /* skbs to send? */
bcs->tx_skb = skb_dequeue(&bcs->squeue);
if (bcs->tx_skb)
- dbg(DEBUG_INTR,
- "Dequeued skb (Adr: %lx)!",
- (unsigned long) bcs->tx_skb);
+ gig_dbg(DEBUG_INTR,
+ "Dequeued skb (Adr: %lx)!",
+ (unsigned long) bcs->tx_skb);
}
}
if (bcs->tx_skb) {
- dbg(DEBUG_OUTPUT, "modem_fill: tx_skb");
+ gig_dbg(DEBUG_OUTPUT, "modem_fill: tx_skb");
if (write_modem(cs) < 0) {
- dbg(DEBUG_OUTPUT,
- "modem_fill: write_modem failed");
+ gig_dbg(DEBUG_OUTPUT,
+ "modem_fill: write_modem failed");
// FIXME should we tell the LL?
again = 1; /* no callback will be called! */
}
@@ -371,88 +361,85 @@ static void gigaset_modem_fill(unsigned long data)
/**
* gigaset_read_int_callback
*
- * It is called if the data was received from the device. This is almost similiar to
- * the interrupt service routine in the serial device.
+ * It is called if the data was received from the device.
*/
static void gigaset_read_int_callback(struct urb *urb, struct pt_regs *regs)
{
+ struct inbuf_t *inbuf = urb->context;
+ struct cardstate *cs = inbuf->cs;
int resubmit = 0;
int r;
- struct cardstate *cs;
unsigned numbytes;
unsigned char *src;
- //unsigned long flags;
- struct inbuf_t *inbuf;
-
- IFNULLRET(urb);
- inbuf = (struct inbuf_t *) urb->context;
- IFNULLRET(inbuf);
- //spin_lock_irqsave(&inbuf->lock, flags);
- cs = inbuf->cs;
- IFNULLGOTO(cs, exit);
- IFNULLGOTO(cardstate, exit);
-
- if (!atomic_read(&cs->connected)) {
- err("%s: disconnected", __func__);
- goto exit;
- }
+ unsigned long flags;
if (!urb->status) {
+ if (!cs->connected) {
+ err("%s: disconnected", __func__); /* should never happen */
+ return;
+ }
+
numbytes = urb->actual_length;
if (numbytes) {
src = inbuf->rcvbuf;
if (unlikely(*src))
- warn("%s: There was no leading 0, but 0x%02x!",
- __func__, (unsigned) *src);
+ dev_warn(cs->dev,
+ "%s: There was no leading 0, but 0x%02x!\n",
+ __func__, (unsigned) *src);
++src; /* skip leading 0x00 */
--numbytes;
if (gigaset_fill_inbuf(inbuf, src, numbytes)) {
- dbg(DEBUG_INTR, "%s-->BH", __func__);
+ gig_dbg(DEBUG_INTR, "%s-->BH", __func__);
gigaset_schedule_event(inbuf->cs);
}
} else
- dbg(DEBUG_INTR, "Received zero block length");
+ gig_dbg(DEBUG_INTR, "Received zero block length");
resubmit = 1;
} else {
/* The urb might have been killed. */
- dbg(DEBUG_ANY, "%s - nonzero read bulk status received: %d",
- __func__, urb->status);
- if (urb->status != -ENOENT) /* not killed */
+ gig_dbg(DEBUG_ANY, "%s - nonzero read bulk status received: %d",
+ __func__, urb->status);
+ if (urb->status != -ENOENT) { /* not killed */
+ if (!cs->connected) {
+ err("%s: disconnected", __func__); /* should never happen */
+ return;
+ }
resubmit = 1;
+ }
}
-exit:
- //spin_unlock_irqrestore(&inbuf->lock, flags);
+
if (resubmit) {
- r = usb_submit_urb(urb, SLAB_ATOMIC);
+ spin_lock_irqsave(&cs->lock, flags);
+ r = cs->connected ? usb_submit_urb(urb, SLAB_ATOMIC) : -ENODEV;
+ spin_unlock_irqrestore(&cs->lock, flags);
if (r)
- err("error %d when resubmitting urb.", -r);
+ dev_err(cs->dev, "error %d when resubmitting urb.\n",
+ -r);
}
}
-/* This callback routine is called when data was transmitted to a B-Channel.
- * Therefore it has to check if there is still data to transmit. This
- * happens by calling modem_fill via task queue.
- *
- */
+/* This callback routine is called when data was transmitted to the device. */
static void gigaset_write_bulk_callback(struct urb *urb, struct pt_regs *regs)
{
- struct cardstate *cs = (struct cardstate *) urb->context;
+ struct cardstate *cs = urb->context;
+ unsigned long flags;
- IFNULLRET(cs);
-#ifdef CONFIG_GIGASET_DEBUG
- if (!atomic_read(&cs->connected)) {
- err("%s:not connected", __func__);
- return;
- }
-#endif
if (urb->status)
- err("bulk transfer failed (status %d)", -urb->status); /* That's all we can do. Communication problems
- are handeled by timeouts or network protocols */
+ dev_err(cs->dev, "bulk transfer failed (status %d)\n",
+ -urb->status);
+ /* That's all we can do. Communication problems
+ are handled by timeouts or network protocols. */
- atomic_set(&cs->hw.usb->busy, 0);
- tasklet_schedule(&cs->write_tasklet);
+ spin_lock_irqsave(&cs->lock, flags);
+ if (!cs->connected) {
+ err("%s: not connected", __func__);
+ } else {
+ atomic_set(&cs->hw.usb->busy, 0);
+ tasklet_schedule(&cs->write_tasklet);
+ }
+ spin_unlock_irqrestore(&cs->lock, flags);
}
static int send_cb(struct cardstate *cs, struct cmdbuf_t *cb)
@@ -469,8 +456,8 @@ static int send_cb(struct cardstate *cs, struct cmdbuf_t *cb)
spin_lock_irqsave(&cs->cmdlock, flags);
cs->cmdbytes -= cs->curlen;
- dbg(DEBUG_OUTPUT, "send_cb: sent %u bytes, %u left",
- cs->curlen, cs->cmdbytes);
+ gig_dbg(DEBUG_OUTPUT, "send_cb: sent %u bytes, %u left",
+ cs->curlen, cs->cmdbytes);
cs->cmdbuf = cb = cb->next;
if (cb) {
cb->prev = NULL;
@@ -487,52 +474,51 @@ static int send_cb(struct cardstate *cs, struct cmdbuf_t *cb)
}
if (cb) {
count = min(cb->len, ucs->bulk_out_size);
+ gig_dbg(DEBUG_OUTPUT, "send_cb: send %d bytes", count);
+
usb_fill_bulk_urb(ucs->bulk_out_urb, ucs->udev,
- usb_sndbulkpipe(ucs->udev,
- ucs->bulk_out_endpointAddr & 0x0f),
- cb->buf + cb->offset, count,
- gigaset_write_bulk_callback, cs);
+ usb_sndbulkpipe(ucs->udev,
+ ucs->bulk_out_endpointAddr & 0x0f),
+ cb->buf + cb->offset, count,
+ gigaset_write_bulk_callback, cs);
cb->offset += count;
cb->len -= count;
atomic_set(&ucs->busy, 1);
- dbg(DEBUG_OUTPUT, "send_cb: send %d bytes", count);
- status = usb_submit_urb(ucs->bulk_out_urb, SLAB_ATOMIC);
+ spin_lock_irqsave(&cs->lock, flags);
+ status = cs->connected ? usb_submit_urb(ucs->bulk_out_urb, SLAB_ATOMIC) : -ENODEV;
+ spin_unlock_irqrestore(&cs->lock, flags);
+
if (status) {
atomic_set(&ucs->busy, 0);
- err("could not submit urb (error %d).",
+ err("could not submit urb (error %d)\n",
-status);
- cb->len = 0; /* skip urb => remove cb+wakeup in next loop cycle */
+ cb->len = 0; /* skip urb => remove cb+wakeup
+ in next loop cycle */
}
}
- } while (cb && status); /* bei Fehler naechster Befehl //FIXME: ist das OK? */
+ } while (cb && status); /* next command on error */
return status;
}
-/* Write string into transbuf and send it to modem.
- */
+/* Send command to device. */
static int gigaset_write_cmd(struct cardstate *cs, const unsigned char *buf,
- int len, struct tasklet_struct *wake_tasklet)
+ int len, struct tasklet_struct *wake_tasklet)
{
struct cmdbuf_t *cb;
unsigned long flags;
gigaset_dbg_buffer(atomic_read(&cs->mstate) != MS_LOCKED ?
- DEBUG_TRANSCMD : DEBUG_LOCKCMD,
- "CMD Transmit", len, buf, 0);
-
- if (!atomic_read(&cs->connected)) {
- err("%s: not connected", __func__);
- return -ENODEV;
- }
+ DEBUG_TRANSCMD : DEBUG_LOCKCMD,
+ "CMD Transmit", len, buf);
if (len <= 0)
return 0;
if (!(cb = kmalloc(sizeof(struct cmdbuf_t) + len, GFP_ATOMIC))) {
- err("%s: out of memory", __func__);
+ dev_err(cs->dev, "%s: out of memory\n", __func__);
return -ENOMEM;
}
@@ -554,7 +540,10 @@ static int gigaset_write_cmd(struct cardstate *cs, const unsigned char *buf,
cs->lastcmdbuf = cb;
spin_unlock_irqrestore(&cs->cmdlock, flags);
- tasklet_schedule(&cs->write_tasklet);
+ spin_lock_irqsave(&cs->lock, flags);
+ if (cs->connected)
+ tasklet_schedule(&cs->write_tasklet);
+ spin_unlock_irqrestore(&cs->lock, flags);
return len;
}
@@ -578,11 +567,12 @@ static int gigaset_chars_in_buffer(struct cardstate *cs)
static int gigaset_brkchars(struct cardstate *cs, const unsigned char buf[6])
{
#ifdef CONFIG_GIGASET_UNDOCREQ
- gigaset_dbg_buffer(DEBUG_USBREQ, "brkchars", 6, buf, 0);
+ struct usb_device *udev = cs->hw.usb->udev;
+
+ gigaset_dbg_buffer(DEBUG_USBREQ, "brkchars", 6, buf);
memcpy(cs->hw.usb->bchars, buf, 6);
- return usb_control_msg(cs->hw.usb->udev,
- usb_sndctrlpipe(cs->hw.usb->udev, 0), 0x19, 0x41,
- 0, 0, &buf, 6, 2000);
+ return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x19, 0x41,
+ 0, 0, &buf, 6, 2000);
#else
return -EINVAL;
#endif
@@ -604,7 +594,6 @@ static int gigaset_initbcshw(struct bc_state *bcs)
if (!bcs->hw.usb)
return 0;
- //bcs->hw.usb->trans_flg = READY_TO_TRNSMIT; /* B-Channel ready to transmit */
return 1;
}
@@ -614,7 +603,6 @@ static void gigaset_reinitbcshw(struct bc_state *bcs)
static void gigaset_freecshw(struct cardstate *cs)
{
- //FIXME
tasklet_kill(&cs->write_tasklet);
kfree(cs->hw.usb);
}
@@ -639,33 +627,21 @@ static int gigaset_initcshw(struct cardstate *cs)
//ucs->urb_cmd_out = NULL;
ucs->read_urb = NULL;
tasklet_init(&cs->write_tasklet,
- &gigaset_modem_fill, (unsigned long) cs);
+ &gigaset_modem_fill, (unsigned long) cs);
return 1;
}
-/* Writes the data of the current open skb into the modem.
- * We have to protect against multiple calls until the
- * callback handler () is called , due to the fact that we
- * are just allowed to send data once to an endpoint. Therefore
- * we using "trans_flg" to synchonize ...
- */
+/* Send data from current skb to the device. */
static int write_modem(struct cardstate *cs)
{
- int ret;
+ int ret = 0;
int count;
struct bc_state *bcs = &cs->bcs[0]; /* only one channel */
struct usb_cardstate *ucs = cs->hw.usb;
- //unsigned long flags;
-
- IFNULLRETVAL(bcs->tx_skb, -EINVAL);
-
- dbg(DEBUG_WRITE, "len: %d...", bcs->tx_skb->len);
+ unsigned long flags;
- ret = -ENODEV;
- IFNULLGOTO(ucs->bulk_out_buffer, error);
- IFNULLGOTO(ucs->bulk_out_urb, error);
- ret = 0;
+ gig_dbg(DEBUG_WRITE, "len: %d...", bcs->tx_skb->len);
if (!bcs->tx_skb->len) {
dev_kfree_skb_any(bcs->tx_skb);
@@ -679,40 +655,42 @@ static int write_modem(struct cardstate *cs)
count = min(bcs->tx_skb->len, (unsigned) ucs->bulk_out_size);
memcpy(ucs->bulk_out_buffer, bcs->tx_skb->data, count);
skb_pull(bcs->tx_skb, count);
-
- usb_fill_bulk_urb(ucs->bulk_out_urb, ucs->udev,
- usb_sndbulkpipe(ucs->udev,
- ucs->bulk_out_endpointAddr & 0x0f),
- ucs->bulk_out_buffer, count,
- gigaset_write_bulk_callback, cs);
atomic_set(&ucs->busy, 1);
- dbg(DEBUG_OUTPUT, "write_modem: send %d bytes", count);
+ gig_dbg(DEBUG_OUTPUT, "write_modem: send %d bytes", count);
+
+ spin_lock_irqsave(&cs->lock, flags);
+ if (cs->connected) {
+ usb_fill_bulk_urb(ucs->bulk_out_urb, ucs->udev,
+ usb_sndbulkpipe(ucs->udev,
+ ucs->bulk_out_endpointAddr & 0x0f),
+ ucs->bulk_out_buffer, count,
+ gigaset_write_bulk_callback, cs);
+ ret = usb_submit_urb(ucs->bulk_out_urb, SLAB_ATOMIC);
+ } else {
+ ret = -ENODEV;
+ }
+ spin_unlock_irqrestore(&cs->lock, flags);
- ret = usb_submit_urb(ucs->bulk_out_urb, SLAB_ATOMIC);
if (ret) {
- err("could not submit urb (error %d).", -ret);
+ err("could not submit urb (error %d)\n", -ret);
atomic_set(&ucs->busy, 0);
}
+
if (!bcs->tx_skb->len) {
/* skb sent completely */
gigaset_skb_sent(bcs, bcs->tx_skb); //FIXME also, when ret<0?
- dbg(DEBUG_INTR,
- "kfree skb (Adr: %lx)!", (unsigned long) bcs->tx_skb);
+ gig_dbg(DEBUG_INTR, "kfree skb (Adr: %lx)!",
+ (unsigned long) bcs->tx_skb);
dev_kfree_skb_any(bcs->tx_skb);
bcs->tx_skb = NULL;
}
return ret;
-error:
- dev_kfree_skb_any(bcs->tx_skb);
- bcs->tx_skb = NULL;
- return ret;
-
}
static int gigaset_probe(struct usb_interface *interface,
- const struct usb_device_id *id)
+ const struct usb_device_id *id)
{
int retval;
struct usb_device *udev = interface_to_usbdev(interface);
@@ -720,16 +698,14 @@ static int gigaset_probe(struct usb_interface *interface,
struct usb_host_interface *hostif;
struct cardstate *cs = NULL;
struct usb_cardstate *ucs = NULL;
- //struct usb_interface_descriptor *iface_desc;
struct usb_endpoint_descriptor *endpoint;
- //isdn_ctrl command;
int buffer_size;
int alt;
- //unsigned long flags;
- info("%s: Check if device matches .. (Vendor: 0x%x, Product: 0x%x)",
- __func__, le16_to_cpu(udev->descriptor.idVendor),
- le16_to_cpu(udev->descriptor.idProduct));
+ gig_dbg(DEBUG_ANY,
+ "%s: Check if device matches .. (Vendor: 0x%x, Product: 0x%x)",
+ __func__, le16_to_cpu(udev->descriptor.idVendor),
+ le16_to_cpu(udev->descriptor.idProduct));
retval = -ENODEV; //FIXME
@@ -744,7 +720,7 @@ static int gigaset_probe(struct usb_interface *interface,
ifnum = hostif->desc.bInterfaceNumber; // FIXME ?
if (alt != 0 || ifnum != 0) {
- warn("ifnum %d, alt %d", ifnum, alt);
+ dev_warn(&udev->dev, "ifnum %d, alt %d\n", ifnum, alt);
return -ENODEV;
}
@@ -752,42 +728,29 @@ static int gigaset_probe(struct usb_interface *interface,
*
*/
if (hostif->desc.bInterfaceClass != 255) {
- info("%s: Device matched, but iface_desc[%d]->bInterfaceClass==%d !",
- __func__, ifnum, hostif->desc.bInterfaceClass);
+ dev_info(&udev->dev,
+ "%s: Device matched but iface_desc[%d]->bInterfaceClass==%d!\n",
+ __func__, ifnum, hostif->desc.bInterfaceClass);
return -ENODEV;
}
- info("%s: Device matched ... !", __func__);
+ dev_info(&udev->dev, "%s: Device matched ... !\n", __func__);
cs = gigaset_getunassignedcs(driver);
if (!cs) {
- warn("No free cardstate!");
+ dev_warn(&udev->dev, "no free cardstate\n");
return -ENODEV;
}
ucs = cs->hw.usb;
-#if 0
- if (usb_set_configuration(udev, udev->config[0].desc.bConfigurationValue) < 0) {
- warn("set_configuration failed");
- goto error;
- }
-
-
- if (usb_set_interface(udev, ifnum/*==0*/, alt/*==0*/) < 0) {
- warn("usb_set_interface failed, device %d interface %d altsetting %d",
- udev->devnum, ifnum, alt);
- goto error;
- }
-#endif
+ /* save off device structure ptrs for later use */
+ usb_get_dev(udev);
+ ucs->udev = udev;
+ ucs->interface = interface;
+ cs->dev = &interface->dev;
- /* set up the endpoint information */
- /* check out the endpoints */
- /* We will get 2 endpoints: One for sending commands to the device (bulk out) and one to
- * poll messages from the device(int in).
- * Therefore we will have an almost similiar situation as with our serial port handler.
- * If an connection will be established, we will have to create data in/out pipes
- * dynamically...
- */
+ /* save address of controller structure */
+ usb_set_intfdata(interface, cs); // dev_set_drvdata(&interface->dev, cs);
endpoint = &hostif->endpoint[0].desc;
@@ -796,14 +759,14 @@ static int gigaset_probe(struct usb_interface *interface,
ucs->bulk_out_endpointAddr = endpoint->bEndpointAddress;
ucs->bulk_out_buffer = kmalloc(buffer_size, GFP_KERNEL);
if (!ucs->bulk_out_buffer) {
- err("Couldn't allocate bulk_out_buffer");
+ dev_err(cs->dev, "Couldn't allocate bulk_out_buffer\n");
retval = -ENOMEM;
goto error;
}
ucs->bulk_out_urb = usb_alloc_urb(0, SLAB_KERNEL);
if (!ucs->bulk_out_urb) {
- err("Couldn't allocate bulk_out_buffer");
+ dev_err(cs->dev, "Couldn't allocate bulk_out_urb\n");
retval = -ENOMEM;
goto error;
}
@@ -811,12 +774,10 @@ static int gigaset_probe(struct usb_interface *interface,
endpoint = &hostif->endpoint[1].desc;
atomic_set(&ucs->busy, 0);
- ucs->udev = udev;
- ucs->interface = interface;
ucs->read_urb = usb_alloc_urb(0, SLAB_KERNEL);
if (!ucs->read_urb) {
- err("No free urbs available");
+ dev_err(cs->dev, "No free urbs available\n");
retval = -ENOMEM;
goto error;
}
@@ -825,38 +786,33 @@ static int gigaset_probe(struct usb_interface *interface,
ucs->int_in_endpointAddr = endpoint->bEndpointAddress;
cs->inbuf[0].rcvbuf = kmalloc(buffer_size, GFP_KERNEL);
if (!cs->inbuf[0].rcvbuf) {
- err("Couldn't allocate rcvbuf");
+ dev_err(cs->dev, "Couldn't allocate rcvbuf\n");
retval = -ENOMEM;
goto error;
}
/* Fill the interrupt urb and send it to the core */
usb_fill_int_urb(ucs->read_urb, udev,
- usb_rcvintpipe(udev,
- endpoint->bEndpointAddress & 0x0f),
- cs->inbuf[0].rcvbuf, buffer_size,
- gigaset_read_int_callback,
- cs->inbuf + 0, endpoint->bInterval);
+ usb_rcvintpipe(udev,
+ endpoint->bEndpointAddress & 0x0f),
+ cs->inbuf[0].rcvbuf, buffer_size,
+ gigaset_read_int_callback,
+ cs->inbuf + 0, endpoint->bInterval);
retval = usb_submit_urb(ucs->read_urb, SLAB_KERNEL);
if (retval) {
- err("Could not submit URB!");
+ dev_err(cs->dev, "Could not submit URB (error %d)\n", -retval);
goto error;
}
/* tell common part that the device is ready */
if (startmode == SM_LOCKED)
atomic_set(&cs->mstate, MS_LOCKED);
+
if (!gigaset_start(cs)) {
tasklet_kill(&cs->write_tasklet);
retval = -ENODEV; //FIXME
goto error;
}
-
- /* save address of controller structure */
- usb_set_intfdata(interface, cs);
-
- /* set up device sysfs */
- gigaset_init_dev_sysfs(interface);
return 0;
error:
@@ -868,48 +824,45 @@ error:
kfree(cs->inbuf[0].rcvbuf);
if (ucs->read_urb != NULL)
usb_free_urb(ucs->read_urb);
+ usb_set_intfdata(interface, NULL);
ucs->read_urb = ucs->bulk_out_urb = NULL;
cs->inbuf[0].rcvbuf = ucs->bulk_out_buffer = NULL;
+ usb_put_dev(ucs->udev);
+ ucs->udev = NULL;
+ ucs->interface = NULL;
gigaset_unassign(cs);
return retval;
}
-/**
- * skel_disconnect
- */
static void gigaset_disconnect(struct usb_interface *interface)
{
struct cardstate *cs;
struct usb_cardstate *ucs;
cs = usb_get_intfdata(interface);
-
- /* clear device sysfs */
- gigaset_free_dev_sysfs(interface);
-
- usb_set_intfdata(interface, NULL);
ucs = cs->hw.usb;
usb_kill_urb(ucs->read_urb);
- //info("GigaSet USB device #%d will be disconnected", minor);
gigaset_stop(cs);
+ usb_set_intfdata(interface, NULL);
tasklet_kill(&cs->write_tasklet);
- usb_kill_urb(ucs->bulk_out_urb); /* FIXME: nur, wenn noetig */
- //usb_kill_urb(ucs->urb_cmd_out); /* FIXME: nur, wenn noetig */
+ usb_kill_urb(ucs->bulk_out_urb); /* FIXME: only if active? */
kfree(ucs->bulk_out_buffer);
if (ucs->bulk_out_urb != NULL)
usb_free_urb(ucs->bulk_out_urb);
- //if(ucs->urb_cmd_out != NULL)
- // usb_free_urb(ucs->urb_cmd_out);
kfree(cs->inbuf[0].rcvbuf);
if (ucs->read_urb != NULL)
usb_free_urb(ucs->read_urb);
- ucs->read_urb = ucs->bulk_out_urb/*=ucs->urb_cmd_out*/=NULL;
+ ucs->read_urb = ucs->bulk_out_urb = NULL;
cs->inbuf[0].rcvbuf = ucs->bulk_out_buffer = NULL;
+ usb_put_dev(ucs->udev);
+ ucs->interface = NULL;
+ ucs->udev = NULL;
+ cs->dev = NULL;
gigaset_unassign(cs);
}
@@ -942,9 +895,9 @@ static int __init usb_gigaset_init(void)
/* allocate memory for our driver state and intialize it */
if ((driver = gigaset_initdriver(GIGASET_MINOR, GIGASET_MINORS,
- GIGASET_MODULENAME, GIGASET_DEVNAME,
- GIGASET_DEVFSNAME, &ops,
- THIS_MODULE)) == NULL)
+ GIGASET_MODULENAME, GIGASET_DEVNAME,
+ GIGASET_DEVFSNAME, &ops,
+ THIS_MODULE)) == NULL)
goto error;
/* allocate memory for our device state and intialize it */
@@ -981,8 +934,8 @@ error: if (cardstate)
static void __exit usb_gigaset_exit(void)
{
gigaset_blockdriver(driver); /* => probe will fail
- * => no gigaset_start any more
- */
+ * => no gigaset_start any more
+ */
gigaset_shutdown(cardstate);
/* from now on, no isdn callback should be possible */
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-29 10:29:23 +0000