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path: root/drivers/usb/serial/ipw.c
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Diffstat (limited to 'drivers/usb/serial/ipw.c')
-rw-r--r--drivers/usb/serial/ipw.c184
1 files changed, 10 insertions, 174 deletions
diff --git a/drivers/usb/serial/ipw.c b/drivers/usb/serial/ipw.c
index e1d07840cee..ca77e88836b 100644
--- a/drivers/usb/serial/ipw.c
+++ b/drivers/usb/serial/ipw.c
@@ -34,7 +34,6 @@
* DCD, DTR, RTS, CTS which are currently faked.
* It's good enough for PPP at this point. It's based off all kinds of
* code found in usb/serial and usb/class
- *
*/
#include <linux/kernel.h>
@@ -52,7 +51,7 @@
/*
* Version Information
*/
-#define DRIVER_VERSION "v0.3"
+#define DRIVER_VERSION "v0.4"
#define DRIVER_AUTHOR "Roelf Diedericks"
#define DRIVER_DESC "IPWireless tty driver"
@@ -65,8 +64,6 @@
/* Message sizes */
#define EVENT_BUFFER_SIZE 0xFF
#define CHAR2INT16(c1, c0) (((u32)((c1) & 0xff) << 8) + (u32)((c0) & 0xff))
-#define NUM_BULK_URBS 24
-#define NUM_CONTROL_URBS 16
/* vendor/product pairs that are known work with this driver*/
#define IPW_VID 0x0bc3
@@ -151,47 +148,6 @@ static struct usb_driver usb_ipw_driver = {
static int debug;
-static void ipw_read_bulk_callback(struct urb *urb)
-{
- struct usb_serial_port *port = urb->context;
- unsigned char *data = urb->transfer_buffer;
- struct tty_struct *tty;
- int result;
- int status = urb->status;
-
- dbg("%s - port %d", __func__, port->number);
-
- if (status) {
- dbg("%s - nonzero read bulk status received: %d",
- __func__, status);
- return;
- }
-
- usb_serial_debug_data(debug, &port->dev, __func__,
- urb->actual_length, data);
-
- tty = tty_port_tty_get(&port->port);
- if (tty && urb->actual_length) {
- tty_insert_flip_string(tty, data, urb->actual_length);
- tty_flip_buffer_push(tty);
- }
- tty_kref_put(tty);
-
- /* Continue trying to always read */
- usb_fill_bulk_urb(port->read_urb, port->serial->dev,
- usb_rcvbulkpipe(port->serial->dev,
- port->bulk_in_endpointAddress),
- port->read_urb->transfer_buffer,
- port->read_urb->transfer_buffer_length,
- ipw_read_bulk_callback, port);
- result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
- if (result)
- dev_err(&port->dev,
- "%s - failed resubmitting read urb, error %d\n",
- __func__, result);
- return;
-}
-
static int ipw_open(struct tty_struct *tty, struct usb_serial_port *port)
{
struct usb_device *dev = port->serial->dev;
@@ -229,15 +185,7 @@ static int ipw_open(struct tty_struct *tty, struct usb_serial_port *port)
/*--2: Start reading from the device */
dbg("%s: setting up bulk read callback", __func__);
- usb_fill_bulk_urb(port->read_urb, dev,
- usb_rcvbulkpipe(dev, port->bulk_in_endpointAddress),
- port->bulk_in_buffer,
- port->bulk_in_size,
- ipw_read_bulk_callback, port);
- result = usb_submit_urb(port->read_urb, GFP_KERNEL);
- if (result < 0)
- dbg("%s - usb_submit_urb(read bulk) failed with status %d",
- __func__, result);
+ usb_serial_generic_open(tty, port);
/*--3: Tell the modem to open the floodgates on the rx bulk channel */
dbg("%s:asking modem for RxRead (RXBULK_ON)", __func__);
@@ -267,35 +215,6 @@ static int ipw_open(struct tty_struct *tty, struct usb_serial_port *port)
dev_err(&port->dev,
"initial flowcontrol failed (error = %d)\n", result);
-
- /*--5: raise the dtr */
- dbg("%s:raising dtr", __func__);
- result = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
- IPW_SIO_SET_PIN,
- USB_TYPE_VENDOR | USB_RECIP_INTERFACE | USB_DIR_OUT,
- IPW_PIN_SETDTR,
- 0,
- NULL,
- 0,
- 200000);
- if (result < 0)
- dev_err(&port->dev,
- "setting dtr failed (error = %d)\n", result);
-
- /*--6: raise the rts */
- dbg("%s:raising rts", __func__);
- result = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
- IPW_SIO_SET_PIN,
- USB_TYPE_VENDOR | USB_RECIP_INTERFACE | USB_DIR_OUT,
- IPW_PIN_SETRTS,
- 0,
- NULL,
- 0,
- 200000);
- if (result < 0)
- dev_err(&port->dev,
- "setting dtr failed (error = %d)\n", result);
-
kfree(buf_flow_init);
return 0;
}
@@ -305,8 +224,8 @@ static void ipw_dtr_rts(struct usb_serial_port *port, int on)
struct usb_device *dev = port->serial->dev;
int result;
- /*--1: drop the dtr */
- dbg("%s:dropping dtr", __func__);
+ dbg("%s: on = %d", __func__, on);
+
result = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
IPW_SIO_SET_PIN,
USB_TYPE_VENDOR | USB_RECIP_INTERFACE | USB_DIR_OUT,
@@ -316,22 +235,20 @@ static void ipw_dtr_rts(struct usb_serial_port *port, int on)
0,
200000);
if (result < 0)
- dev_err(&port->dev, "dropping dtr failed (error = %d)\n",
+ dev_err(&port->dev, "setting dtr failed (error = %d)\n",
result);
- /*--2: drop the rts */
- dbg("%s:dropping rts", __func__);
result = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
IPW_SIO_SET_PIN, USB_TYPE_VENDOR |
- USB_RECIP_INTERFACE | USB_DIR_OUT,
+ USB_RECIP_INTERFACE | USB_DIR_OUT,
on ? IPW_PIN_SETRTS : IPW_PIN_CLRRTS,
0,
NULL,
0,
200000);
if (result < 0)
- dev_err(&port->dev,
- "dropping rts failed (error = %d)\n", result);
+ dev_err(&port->dev, "setting rts failed (error = %d)\n",
+ result);
}
static void ipw_close(struct usb_serial_port *port)
@@ -368,83 +285,7 @@ static void ipw_close(struct usb_serial_port *port)
dev_err(&port->dev,
"Disabling bulk RxRead failed (error = %d)\n", result);
- /* shutdown any in-flight urbs that we know about */
- usb_kill_urb(port->read_urb);
- usb_kill_urb(port->write_urb);
-}
-
-static void ipw_write_bulk_callback(struct urb *urb)
-{
- struct usb_serial_port *port = urb->context;
- int status = urb->status;
-
- dbg("%s", __func__);
-
- port->write_urb_busy = 0;
-
- if (status)
- dbg("%s - nonzero write bulk status received: %d",
- __func__, status);
-
- usb_serial_port_softint(port);
-}
-
-static int ipw_write(struct tty_struct *tty, struct usb_serial_port *port,
- const unsigned char *buf, int count)
-{
- struct usb_device *dev = port->serial->dev;
- int ret;
-
- dbg("%s: TOP: count=%d, in_interrupt=%ld", __func__,
- count, in_interrupt());
-
- if (count == 0) {
- dbg("%s - write request of 0 bytes", __func__);
- return 0;
- }
-
- spin_lock_bh(&port->lock);
- if (port->write_urb_busy) {
- spin_unlock_bh(&port->lock);
- dbg("%s - already writing", __func__);
- return 0;
- }
- port->write_urb_busy = 1;
- spin_unlock_bh(&port->lock);
-
- count = min(count, port->bulk_out_size);
- memcpy(port->bulk_out_buffer, buf, count);
-
- dbg("%s count now:%d", __func__, count);
-
- usb_fill_bulk_urb(port->write_urb, dev,
- usb_sndbulkpipe(dev, port->bulk_out_endpointAddress),
- port->write_urb->transfer_buffer,
- count,
- ipw_write_bulk_callback,
- port);
-
- ret = usb_submit_urb(port->write_urb, GFP_ATOMIC);
- if (ret != 0) {
- port->write_urb_busy = 0;
- dbg("%s - usb_submit_urb(write bulk) failed with error = %d",
- __func__, ret);
- return ret;
- }
-
- dbg("%s returning %d", __func__, count);
- return count;
-}
-
-static int ipw_probe(struct usb_serial_port *port)
-{
- return 0;
-}
-
-static int ipw_disconnect(struct usb_serial_port *port)
-{
- usb_set_serial_port_data(port, NULL);
- return 0;
+ usb_serial_generic_close(port);
}
static struct usb_serial_driver ipw_device = {
@@ -453,17 +294,12 @@ static struct usb_serial_driver ipw_device = {
.name = "ipw",
},
.description = "IPWireless converter",
- .usb_driver = &usb_ipw_driver,
+ .usb_driver = &usb_ipw_driver,
.id_table = usb_ipw_ids,
.num_ports = 1,
.open = ipw_open,
.close = ipw_close,
.dtr_rts = ipw_dtr_rts,
- .port_probe = ipw_probe,
- .port_remove = ipw_disconnect,
- .write = ipw_write,
- .write_bulk_callback = ipw_write_bulk_callback,
- .read_bulk_callback = ipw_read_bulk_callback,
};
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-27 06:46:01 +0000