From 5afa5aa79680ee107fef1195c80f5f67c54b6691 Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Tue, 17 Jan 2012 20:09:19 +0200
Subject: ath6kl: get rid of AR_DBG_LVL_CHECK()
We don't need it as debug calls already have a log level and compiler
should be smart enough to optimise away the code when ath6kl debug code
is not enabled. Also it makes it easier to abstract core code to
ath6kl_core.ko.
In ath6kl_dump_registers() I had to change the debug level from ANY to IRQ
as I removed the AR_DBG_LVL_CHECK() check before calling the function.
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
drivers/net/wireless/ath/ath6kl/debug.h | 2 --
1 file changed, 2 deletions(-)
(limited to 'drivers/net/wireless/ath/ath6kl/debug.h')
diff --git a/drivers/net/wireless/ath/ath6kl/debug.h b/drivers/net/wireless/ath/ath6kl/debug.h
index 9853c9c125c..9dc39754a35 100644
--- a/drivers/net/wireless/ath/ath6kl/debug.h
+++ b/drivers/net/wireless/ath/ath6kl/debug.h
@@ -55,8 +55,6 @@ int ath6kl_printk(const char *level, const char *fmt, ...);
#define ath6kl_warn(fmt, ...) \
ath6kl_printk(KERN_WARNING, fmt, ##__VA_ARGS__)
-#define AR_DBG_LVL_CHECK(mask) (debug_mask & mask)
-
enum ath6kl_war {
ATH6KL_WAR_INVALID_RATE,
};
--
cgit v1.2.3-70-g09d2
From 3b1b7d0985fdb26403678e49938a668ef7f772ea Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Tue, 17 Jan 2012 20:09:27 +0200
Subject: ath6kl: convert ath6kl_dbg() and ath6kl_dbg_dump() into functions
That way it's possible to not export debug_mask outside the upcoming
ath6kl_core.ko and that makes it easier to ath6kl_core.ko in the
following patch.
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
drivers/net/wireless/ath/ath6kl/debug.c | 30 ++++++++++++++++++++++++++++++
drivers/net/wireless/ath/ath6kl/debug.h | 25 ++++---------------------
2 files changed, 34 insertions(+), 21 deletions(-)
(limited to 'drivers/net/wireless/ath/ath6kl/debug.h')
diff --git a/drivers/net/wireless/ath/ath6kl/debug.c b/drivers/net/wireless/ath/ath6kl/debug.c
index bd2f1fae72a..4ba6560f0bf 100644
--- a/drivers/net/wireless/ath/ath6kl/debug.c
+++ b/drivers/net/wireless/ath/ath6kl/debug.c
@@ -57,6 +57,36 @@ int ath6kl_printk(const char *level, const char *fmt, ...)
#ifdef CONFIG_ATH6KL_DEBUG
+void ath6kl_dbg(enum ATH6K_DEBUG_MASK mask, const char *fmt, ...)
+{
+ struct va_format vaf;
+ va_list args;
+
+ if (!(debug_mask & mask))
+ return;
+
+ va_start(args, fmt);
+
+ vaf.fmt = fmt;
+ vaf.va = &args;
+
+ ath6kl_printk(KERN_DEBUG, "%pV", &vaf);
+
+ va_end(args);
+}
+
+void ath6kl_dbg_dump(enum ATH6K_DEBUG_MASK mask,
+ const char *msg, const char *prefix,
+ const void *buf, size_t len)
+{
+ if (debug_mask & mask) {
+ if (msg)
+ ath6kl_dbg(mask, "%s\n", msg);
+
+ print_hex_dump_bytes(prefix, DUMP_PREFIX_OFFSET, buf, len);
+ }
+}
+
#define REG_OUTPUT_LEN_PER_LINE 25
#define REGTYPE_STR_LEN 100
diff --git a/drivers/net/wireless/ath/ath6kl/debug.h b/drivers/net/wireless/ath/ath6kl/debug.h
index 9dc39754a35..872a8ce5d8f 100644
--- a/drivers/net/wireless/ath/ath6kl/debug.h
+++ b/drivers/net/wireless/ath/ath6kl/debug.h
@@ -60,28 +60,11 @@ enum ath6kl_war {
};
#ifdef CONFIG_ATH6KL_DEBUG
-#define ath6kl_dbg(mask, fmt, ...) \
- ({ \
- int rtn; \
- if (debug_mask & mask) \
- rtn = ath6kl_printk(KERN_DEBUG, fmt, ##__VA_ARGS__); \
- else \
- rtn = 0; \
- \
- rtn; \
- })
-static inline void ath6kl_dbg_dump(enum ATH6K_DEBUG_MASK mask,
- const char *msg, const char *prefix,
- const void *buf, size_t len)
-{
- if (debug_mask & mask) {
- if (msg)
- ath6kl_dbg(mask, "%s\n", msg);
-
- print_hex_dump_bytes(prefix, DUMP_PREFIX_OFFSET, buf, len);
- }
-}
+void ath6kl_dbg(enum ATH6K_DEBUG_MASK mask, const char *fmt, ...);
+void ath6kl_dbg_dump(enum ATH6K_DEBUG_MASK mask,
+ const char *msg, const char *prefix,
+ const void *buf, size_t len);
void ath6kl_dump_registers(struct ath6kl_device *dev,
struct ath6kl_irq_proc_registers *irq_proc_reg,
--
cgit v1.2.3-70-g09d2
From 241b128b6b69ad41fc6f12cba45a3c3e64bce673 Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Tue, 17 Jan 2012 20:09:45 +0200
Subject: ath6kl: add back beginnings of USB support
John Linville had to revert the part of USB support which was already
in ath6kl due to build problems in commit cb00ec382b ("ath6kl: revert
USB support"). Now that I fixed the build problems properly by adding
ath6kl_core.ko kernel module it's possible to add back the
(incomplete) USB support. This patch is a revert of John's patch and
adds back the USB code which as already in ath6kl, only difference
being minor changes in Makefile and adapting usb.c to new core
function names.
Note that USB support in ath6kl is not complete yet. This code only
makes it possible to boot firmware but as HTC layer does not yet
support USB it's not possible to send any WMI commands nor data
packets to the firmware. That will be added soon.
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
drivers/net/wireless/ath/ath6kl/Kconfig | 25 +-
drivers/net/wireless/ath/ath6kl/Makefile | 3 +
drivers/net/wireless/ath/ath6kl/bmi.c | 10 +-
drivers/net/wireless/ath/ath6kl/debug.h | 1 +
drivers/net/wireless/ath/ath6kl/hif.c | 5 +
drivers/net/wireless/ath/ath6kl/htc.c | 10 +-
drivers/net/wireless/ath/ath6kl/sdio.c | 2 +-
drivers/net/wireless/ath/ath6kl/usb.c | 431 +++++++++++++++++++++++++++++++
8 files changed, 479 insertions(+), 8 deletions(-)
create mode 100644 drivers/net/wireless/ath/ath6kl/usb.c
(limited to 'drivers/net/wireless/ath/ath6kl/debug.h')
diff --git a/drivers/net/wireless/ath/ath6kl/Kconfig b/drivers/net/wireless/ath/ath6kl/Kconfig
index 3d5f8be20ea..d755a5e7ed2 100644
--- a/drivers/net/wireless/ath/ath6kl/Kconfig
+++ b/drivers/net/wireless/ath/ath6kl/Kconfig
@@ -1,12 +1,29 @@
config ATH6KL
- tristate "Atheros ath6kl support"
+ tristate "Atheros mobile chipsets support"
+
+config ATH6KL_SDIO
+ tristate "Atheros ath6kl SDIO support"
+ depends on ATH6KL
depends on MMC
depends on CFG80211
---help---
This module adds support for wireless adapters based on
- Atheros AR6003 chipset running over SDIO. If you choose to
- build it as a module, it will be called ath6kl. Pls note
- that AR6002 and AR6001 are not supported by this driver.
+ Atheros AR6003 and AR6004 chipsets running over SDIO. If you
+ choose to build it as a module, it will be called ath6kl_sdio.
+ Please note that AR6002 and AR6001 are not supported by this
+ driver.
+
+config ATH6KL_USB
+ tristate "Atheros ath6kl USB support"
+ depends on ATH6KL
+ depends on USB
+ depends on CFG80211
+ depends on EXPERIMENTAL
+ ---help---
+ This module adds support for wireless adapters based on
+ Atheros AR6004 chipset running over USB. This is still under
+ implementation and it isn't functional. If you choose to
+ build it as a module, it will be called ath6kl_usb.
config ATH6KL_DEBUG
bool "Atheros ath6kl debugging"
diff --git a/drivers/net/wireless/ath/ath6kl/Makefile b/drivers/net/wireless/ath/ath6kl/Makefile
index cbdc31c603f..9ba42fa0496 100644
--- a/drivers/net/wireless/ath/ath6kl/Makefile
+++ b/drivers/net/wireless/ath/ath6kl/Makefile
@@ -36,3 +36,6 @@ ath6kl_core-$(CONFIG_NL80211_TESTMODE) += testmode.o
obj-$(CONFIG_ATH6KL_SDIO) += ath6kl_sdio.o
ath6kl_sdio-y += sdio.o
+
+obj-$(CONFIG_ATH6KL_USB) += ath6kl_usb.o
+ath6kl_usb-y += usb.o
diff --git a/drivers/net/wireless/ath/ath6kl/bmi.c b/drivers/net/wireless/ath/ath6kl/bmi.c
index bce3575c310..aef00d5a143 100644
--- a/drivers/net/wireless/ath/ath6kl/bmi.c
+++ b/drivers/net/wireless/ath/ath6kl/bmi.c
@@ -57,8 +57,14 @@ int ath6kl_bmi_get_target_info(struct ath6kl *ar,
return ret;
}
- ret = ath6kl_hif_bmi_read(ar, (u8 *)&targ_info->version,
- sizeof(targ_info->version));
+ if (ar->hif_type == ATH6KL_HIF_TYPE_USB) {
+ ret = ath6kl_hif_bmi_read(ar, (u8 *)targ_info,
+ sizeof(*targ_info));
+ } else {
+ ret = ath6kl_hif_bmi_read(ar, (u8 *)&targ_info->version,
+ sizeof(targ_info->version));
+ }
+
if (ret) {
ath6kl_err("Unable to recv target info: %d\n", ret);
return ret;
diff --git a/drivers/net/wireless/ath/ath6kl/debug.h b/drivers/net/wireless/ath/ath6kl/debug.h
index 872a8ce5d8f..c4be6e50996 100644
--- a/drivers/net/wireless/ath/ath6kl/debug.h
+++ b/drivers/net/wireless/ath/ath6kl/debug.h
@@ -41,6 +41,7 @@ enum ATH6K_DEBUG_MASK {
ATH6KL_DBG_BOOT = BIT(18), /* driver init and fw boot */
ATH6KL_DBG_WMI_DUMP = BIT(19),
ATH6KL_DBG_SUSPEND = BIT(20),
+ ATH6KL_DBG_USB = BIT(21),
ATH6KL_DBG_ANY = 0xffffffff /* enable all logs */
};
diff --git a/drivers/net/wireless/ath/ath6kl/hif.c b/drivers/net/wireless/ath/ath6kl/hif.c
index d912da6ab0d..e911737ab34 100644
--- a/drivers/net/wireless/ath/ath6kl/hif.c
+++ b/drivers/net/wireless/ath/ath6kl/hif.c
@@ -693,6 +693,11 @@ int ath6kl_hif_setup(struct ath6kl_device *dev)
ath6kl_dbg(ATH6KL_DBG_HIF, "hif block size %d mbox addr 0x%x\n",
dev->htc_cnxt->block_sz, dev->ar->mbox_info.htc_addr);
+ /* usb doesn't support enabling interrupts */
+ /* FIXME: remove check once USB support is implemented */
+ if (dev->ar->hif_type == ATH6KL_HIF_TYPE_USB)
+ return 0;
+
status = ath6kl_hif_disable_intrs(dev);
fail_setup:
diff --git a/drivers/net/wireless/ath/ath6kl/htc.c b/drivers/net/wireless/ath/ath6kl/htc.c
index 073ddff3134..2d721903640 100644
--- a/drivers/net/wireless/ath/ath6kl/htc.c
+++ b/drivers/net/wireless/ath/ath6kl/htc.c
@@ -2544,6 +2544,12 @@ int ath6kl_htc_wait_target(struct htc_target *target)
struct htc_service_connect_resp resp;
int status;
+ /* FIXME: remove once USB support is implemented */
+ if (target->dev->ar->hif_type == ATH6KL_HIF_TYPE_USB) {
+ ath6kl_err("HTC doesn't support USB yet. Patience!\n");
+ return -EOPNOTSUPP;
+ }
+
/* we should be getting 1 control message that the target is ready */
packet = htc_wait_for_ctrl_msg(target);
@@ -2773,7 +2779,9 @@ void ath6kl_htc_cleanup(struct htc_target *target)
{
struct htc_packet *packet, *tmp_packet;
- ath6kl_hif_cleanup_scatter(target->dev->ar);
+ /* FIXME: remove check once USB support is implemented */
+ if (target->dev->ar->hif_type != ATH6KL_HIF_TYPE_USB)
+ ath6kl_hif_cleanup_scatter(target->dev->ar);
list_for_each_entry_safe(packet, tmp_packet,
&target->free_ctrl_txbuf, list) {
diff --git a/drivers/net/wireless/ath/ath6kl/sdio.c b/drivers/net/wireless/ath/ath6kl/sdio.c
index bef32ecea79..7bb61077c40 100644
--- a/drivers/net/wireless/ath/ath6kl/sdio.c
+++ b/drivers/net/wireless/ath/ath6kl/sdio.c
@@ -1330,7 +1330,7 @@ static const struct sdio_device_id ath6kl_sdio_devices[] = {
MODULE_DEVICE_TABLE(sdio, ath6kl_sdio_devices);
static struct sdio_driver ath6kl_sdio_driver = {
- .name = "ath6kl",
+ .name = "ath6kl_sdio",
.id_table = ath6kl_sdio_devices,
.probe = ath6kl_sdio_probe,
.remove = ath6kl_sdio_remove,
diff --git a/drivers/net/wireless/ath/ath6kl/usb.c b/drivers/net/wireless/ath/ath6kl/usb.c
new file mode 100644
index 00000000000..c72567c6d33
--- /dev/null
+++ b/drivers/net/wireless/ath/ath6kl/usb.c
@@ -0,0 +1,431 @@
+/*
+ * Copyright (c) 2007-2011 Atheros Communications Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <linux/module.h>
+#include <linux/usb.h>
+
+#include "debug.h"
+#include "core.h"
+
+/* usb device object */
+struct ath6kl_usb {
+ struct usb_device *udev;
+ struct usb_interface *interface;
+ u8 *diag_cmd_buffer;
+ u8 *diag_resp_buffer;
+ struct ath6kl *ar;
+};
+
+/* diagnostic command defnitions */
+#define ATH6KL_USB_CONTROL_REQ_SEND_BMI_CMD 1
+#define ATH6KL_USB_CONTROL_REQ_RECV_BMI_RESP 2
+#define ATH6KL_USB_CONTROL_REQ_DIAG_CMD 3
+#define ATH6KL_USB_CONTROL_REQ_DIAG_RESP 4
+
+#define ATH6KL_USB_CTRL_DIAG_CC_READ 0
+#define ATH6KL_USB_CTRL_DIAG_CC_WRITE 1
+
+struct ath6kl_usb_ctrl_diag_cmd_write {
+ __le32 cmd;
+ __le32 address;
+ __le32 value;
+ __le32 _pad[1];
+} __packed;
+
+struct ath6kl_usb_ctrl_diag_cmd_read {
+ __le32 cmd;
+ __le32 address;
+} __packed;
+
+struct ath6kl_usb_ctrl_diag_resp_read {
+ __le32 value;
+} __packed;
+
+#define ATH6KL_USB_MAX_DIAG_CMD (sizeof(struct ath6kl_usb_ctrl_diag_cmd_write))
+#define ATH6KL_USB_MAX_DIAG_RESP (sizeof(struct ath6kl_usb_ctrl_diag_resp_read))
+
+static void ath6kl_usb_destroy(struct ath6kl_usb *ar_usb)
+{
+ usb_set_intfdata(ar_usb->interface, NULL);
+
+ kfree(ar_usb->diag_cmd_buffer);
+ kfree(ar_usb->diag_resp_buffer);
+
+ kfree(ar_usb);
+}
+
+static struct ath6kl_usb *ath6kl_usb_create(struct usb_interface *interface)
+{
+ struct ath6kl_usb *ar_usb = NULL;
+ struct usb_device *dev = interface_to_usbdev(interface);
+ int status = 0;
+
+ ar_usb = kzalloc(sizeof(struct ath6kl_usb), GFP_KERNEL);
+ if (ar_usb == NULL)
+ goto fail_ath6kl_usb_create;
+
+ memset(ar_usb, 0, sizeof(struct ath6kl_usb));
+ usb_set_intfdata(interface, ar_usb);
+ ar_usb->udev = dev;
+ ar_usb->interface = interface;
+
+ ar_usb->diag_cmd_buffer = kzalloc(ATH6KL_USB_MAX_DIAG_CMD, GFP_KERNEL);
+ if (ar_usb->diag_cmd_buffer == NULL) {
+ status = -ENOMEM;
+ goto fail_ath6kl_usb_create;
+ }
+
+ ar_usb->diag_resp_buffer = kzalloc(ATH6KL_USB_MAX_DIAG_RESP,
+ GFP_KERNEL);
+ if (ar_usb->diag_resp_buffer == NULL) {
+ status = -ENOMEM;
+ goto fail_ath6kl_usb_create;
+ }
+
+fail_ath6kl_usb_create:
+ if (status != 0) {
+ ath6kl_usb_destroy(ar_usb);
+ ar_usb = NULL;
+ }
+ return ar_usb;
+}
+
+static void ath6kl_usb_device_detached(struct usb_interface *interface)
+{
+ struct ath6kl_usb *ar_usb;
+
+ ar_usb = usb_get_intfdata(interface);
+ if (ar_usb == NULL)
+ return;
+
+ ath6kl_stop_txrx(ar_usb->ar);
+
+ ath6kl_core_cleanup(ar_usb->ar);
+
+ ath6kl_usb_destroy(ar_usb);
+}
+
+static int ath6kl_usb_submit_ctrl_out(struct ath6kl_usb *ar_usb,
+ u8 req, u16 value, u16 index, void *data,
+ u32 size)
+{
+ u8 *buf = NULL;
+ int ret;
+
+ if (size > 0) {
+ buf = kmalloc(size, GFP_KERNEL);
+ if (buf == NULL)
+ return -ENOMEM;
+
+ memcpy(buf, data, size);
+ }
+
+ /* note: if successful returns number of bytes transfered */
+ ret = usb_control_msg(ar_usb->udev,
+ usb_sndctrlpipe(ar_usb->udev, 0),
+ req,
+ USB_DIR_OUT | USB_TYPE_VENDOR |
+ USB_RECIP_DEVICE, value, index, buf,
+ size, 1000);
+
+ if (ret < 0) {
+ ath6kl_dbg(ATH6KL_DBG_USB, "%s failed,result = %d\n",
+ __func__, ret);
+ }
+
+ kfree(buf);
+
+ return 0;
+}
+
+static int ath6kl_usb_submit_ctrl_in(struct ath6kl_usb *ar_usb,
+ u8 req, u16 value, u16 index, void *data,
+ u32 size)
+{
+ u8 *buf = NULL;
+ int ret;
+
+ if (size > 0) {
+ buf = kmalloc(size, GFP_KERNEL);
+ if (buf == NULL)
+ return -ENOMEM;
+ }
+
+ /* note: if successful returns number of bytes transfered */
+ ret = usb_control_msg(ar_usb->udev,
+ usb_rcvctrlpipe(ar_usb->udev, 0),
+ req,
+ USB_DIR_IN | USB_TYPE_VENDOR |
+ USB_RECIP_DEVICE, value, index, buf,
+ size, 2 * HZ);
+
+ if (ret < 0) {
+ ath6kl_dbg(ATH6KL_DBG_USB, "%s failed,result = %d\n",
+ __func__, ret);
+ }
+
+ memcpy((u8 *) data, buf, size);
+
+ kfree(buf);
+
+ return 0;
+}
+
+static int ath6kl_usb_ctrl_msg_exchange(struct ath6kl_usb *ar_usb,
+ u8 req_val, u8 *req_buf, u32 req_len,
+ u8 resp_val, u8 *resp_buf, u32 *resp_len)
+{
+ int ret;
+
+ /* send command */
+ ret = ath6kl_usb_submit_ctrl_out(ar_usb, req_val, 0, 0,
+ req_buf, req_len);
+
+ if (ret != 0)
+ return ret;
+
+ if (resp_buf == NULL) {
+ /* no expected response */
+ return ret;
+ }
+
+ /* get response */
+ ret = ath6kl_usb_submit_ctrl_in(ar_usb, resp_val, 0, 0,
+ resp_buf, *resp_len);
+
+ return ret;
+}
+
+static int ath6kl_usb_diag_read32(struct ath6kl *ar, u32 address, u32 *data)
+{
+ struct ath6kl_usb *ar_usb = ar->hif_priv;
+ struct ath6kl_usb_ctrl_diag_resp_read *resp;
+ struct ath6kl_usb_ctrl_diag_cmd_read *cmd;
+ u32 resp_len;
+ int ret;
+
+ cmd = (struct ath6kl_usb_ctrl_diag_cmd_read *) ar_usb->diag_cmd_buffer;
+
+ memset(cmd, 0, sizeof(*cmd));
+ cmd->cmd = ATH6KL_USB_CTRL_DIAG_CC_READ;
+ cmd->address = cpu_to_le32(address);
+ resp_len = sizeof(*resp);
+
+ ret = ath6kl_usb_ctrl_msg_exchange(ar_usb,
+ ATH6KL_USB_CONTROL_REQ_DIAG_CMD,
+ (u8 *) cmd,
+ sizeof(struct ath6kl_usb_ctrl_diag_cmd_write),
+ ATH6KL_USB_CONTROL_REQ_DIAG_RESP,
+ ar_usb->diag_resp_buffer, &resp_len);
+
+ if (ret)
+ return ret;
+
+ resp = (struct ath6kl_usb_ctrl_diag_resp_read *)
+ ar_usb->diag_resp_buffer;
+
+ *data = le32_to_cpu(resp->value);
+
+ return ret;
+}
+
+static int ath6kl_usb_diag_write32(struct ath6kl *ar, u32 address, __le32 data)
+{
+ struct ath6kl_usb *ar_usb = ar->hif_priv;
+ struct ath6kl_usb_ctrl_diag_cmd_write *cmd;
+
+ cmd = (struct ath6kl_usb_ctrl_diag_cmd_write *) ar_usb->diag_cmd_buffer;
+
+ memset(cmd, 0, sizeof(struct ath6kl_usb_ctrl_diag_cmd_write));
+ cmd->cmd = cpu_to_le32(ATH6KL_USB_CTRL_DIAG_CC_WRITE);
+ cmd->address = cpu_to_le32(address);
+ cmd->value = data;
+
+ return ath6kl_usb_ctrl_msg_exchange(ar_usb,
+ ATH6KL_USB_CONTROL_REQ_DIAG_CMD,
+ (u8 *) cmd,
+ sizeof(*cmd),
+ 0, NULL, NULL);
+
+}
+
+static int ath6kl_usb_bmi_read(struct ath6kl *ar, u8 *buf, u32 len)
+{
+ struct ath6kl_usb *ar_usb = ar->hif_priv;
+ int ret;
+
+ /* get response */
+ ret = ath6kl_usb_submit_ctrl_in(ar_usb,
+ ATH6KL_USB_CONTROL_REQ_RECV_BMI_RESP,
+ 0, 0, buf, len);
+ if (ret != 0) {
+ ath6kl_err("Unable to read the bmi data from the device: %d\n",
+ ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int ath6kl_usb_bmi_write(struct ath6kl *ar, u8 *buf, u32 len)
+{
+ struct ath6kl_usb *ar_usb = ar->hif_priv;
+ int ret;
+
+ /* send command */
+ ret = ath6kl_usb_submit_ctrl_out(ar_usb,
+ ATH6KL_USB_CONTROL_REQ_SEND_BMI_CMD,
+ 0, 0, buf, len);
+ if (ret != 0) {
+ ath6kl_err("unable to send the bmi data to the device: %d\n",
+ ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int ath6kl_usb_power_on(struct ath6kl *ar)
+{
+ return 0;
+}
+
+static int ath6kl_usb_power_off(struct ath6kl *ar)
+{
+ return 0;
+}
+
+static const struct ath6kl_hif_ops ath6kl_usb_ops = {
+ .diag_read32 = ath6kl_usb_diag_read32,
+ .diag_write32 = ath6kl_usb_diag_write32,
+ .bmi_read = ath6kl_usb_bmi_read,
+ .bmi_write = ath6kl_usb_bmi_write,
+ .power_on = ath6kl_usb_power_on,
+ .power_off = ath6kl_usb_power_off,
+};
+
+/* ath6kl usb driver registered functions */
+static int ath6kl_usb_probe(struct usb_interface *interface,
+ const struct usb_device_id *id)
+{
+ struct usb_device *dev = interface_to_usbdev(interface);
+ struct ath6kl *ar;
+ struct ath6kl_usb *ar_usb = NULL;
+ int vendor_id, product_id;
+ int ret = 0;
+
+ usb_get_dev(dev);
+
+ vendor_id = le16_to_cpu(dev->descriptor.idVendor);
+ product_id = le16_to_cpu(dev->descriptor.idProduct);
+
+ ath6kl_dbg(ATH6KL_DBG_USB, "vendor_id = %04x\n", vendor_id);
+ ath6kl_dbg(ATH6KL_DBG_USB, "product_id = %04x\n", product_id);
+
+ if (interface->cur_altsetting)
+ ath6kl_dbg(ATH6KL_DBG_USB, "USB Interface %d\n",
+ interface->cur_altsetting->desc.bInterfaceNumber);
+
+
+ if (dev->speed == USB_SPEED_HIGH)
+ ath6kl_dbg(ATH6KL_DBG_USB, "USB 2.0 Host\n");
+ else
+ ath6kl_dbg(ATH6KL_DBG_USB, "USB 1.1 Host\n");
+
+ ar_usb = ath6kl_usb_create(interface);
+
+ if (ar_usb == NULL) {
+ ret = -ENOMEM;
+ goto err_usb_put;
+ }
+
+ ar = ath6kl_core_create(&ar_usb->udev->dev);
+ if (ar == NULL) {
+ ath6kl_err("Failed to alloc ath6kl core\n");
+ ret = -ENOMEM;
+ goto err_usb_destroy;
+ }
+
+ ar->hif_priv = ar_usb;
+ ar->hif_type = ATH6KL_HIF_TYPE_USB;
+ ar->hif_ops = &ath6kl_usb_ops;
+ ar->mbox_info.block_size = 16;
+ ar->bmi.max_data_size = 252;
+
+ ar_usb->ar = ar;
+
+ ret = ath6kl_core_init(ar);
+ if (ret) {
+ ath6kl_err("Failed to init ath6kl core: %d\n", ret);
+ goto err_core_free;
+ }
+
+ return ret;
+
+err_core_free:
+ ath6kl_core_destroy(ar);
+err_usb_destroy:
+ ath6kl_usb_destroy(ar_usb);
+err_usb_put:
+ usb_put_dev(dev);
+
+ return ret;
+}
+
+static void ath6kl_usb_remove(struct usb_interface *interface)
+{
+ usb_put_dev(interface_to_usbdev(interface));
+ ath6kl_usb_device_detached(interface);
+}
+
+/* table of devices that work with this driver */
+static struct usb_device_id ath6kl_usb_ids[] = {
+ {USB_DEVICE(0x0cf3, 0x9374)},
+ { /* Terminating entry */ },
+};
+
+MODULE_DEVICE_TABLE(usb, ath6kl_usb_ids);
+
+static struct usb_driver ath6kl_usb_driver = {
+ .name = "ath6kl_usb",
+ .probe = ath6kl_usb_probe,
+ .disconnect = ath6kl_usb_remove,
+ .id_table = ath6kl_usb_ids,
+};
+
+static int ath6kl_usb_init(void)
+{
+ usb_register(&ath6kl_usb_driver);
+ return 0;
+}
+
+static void ath6kl_usb_exit(void)
+{
+ usb_deregister(&ath6kl_usb_driver);
+}
+
+module_init(ath6kl_usb_init);
+module_exit(ath6kl_usb_exit);
+
+MODULE_AUTHOR("Atheros Communications, Inc.");
+MODULE_DESCRIPTION("Driver support for Atheros AR600x USB devices");
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_FIRMWARE(AR6004_HW_1_0_FIRMWARE_FILE);
+MODULE_FIRMWARE(AR6004_HW_1_0_BOARD_DATA_FILE);
+MODULE_FIRMWARE(AR6004_HW_1_0_DEFAULT_BOARD_DATA_FILE);
+MODULE_FIRMWARE(AR6004_HW_1_1_FIRMWARE_FILE);
+MODULE_FIRMWARE(AR6004_HW_1_1_BOARD_DATA_FILE);
+MODULE_FIRMWARE(AR6004_HW_1_1_DEFAULT_BOARD_DATA_FILE);
--
cgit v1.2.3-70-g09d2
From 1b2df4073447234034e2329f0df584c6346a8ec3 Mon Sep 17 00:00:00 2001
From: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Date: Mon, 6 Feb 2012 20:15:53 +0530
Subject: ath6kl: Update license header
Update license header with the copyright to Qualcomm Atheros, Inc.
for the year 2011-2012.
Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
drivers/net/wireless/ath/ath6kl/Makefile | 3 ++-
drivers/net/wireless/ath/ath6kl/bmi.c | 1 +
drivers/net/wireless/ath/ath6kl/bmi.h | 1 +
drivers/net/wireless/ath/ath6kl/cfg80211.c | 1 +
drivers/net/wireless/ath/ath6kl/cfg80211.h | 1 +
drivers/net/wireless/ath/ath6kl/common.h | 1 +
drivers/net/wireless/ath/ath6kl/core.c | 1 +
drivers/net/wireless/ath/ath6kl/core.h | 1 +
drivers/net/wireless/ath/ath6kl/debug.c | 1 +
drivers/net/wireless/ath/ath6kl/debug.h | 1 +
drivers/net/wireless/ath/ath6kl/hif-ops.h | 1 +
drivers/net/wireless/ath/ath6kl/hif.c | 1 +
drivers/net/wireless/ath/ath6kl/hif.h | 1 +
drivers/net/wireless/ath/ath6kl/htc.c | 1 +
drivers/net/wireless/ath/ath6kl/htc.h | 1 +
drivers/net/wireless/ath/ath6kl/init.c | 1 +
drivers/net/wireless/ath/ath6kl/main.c | 1 +
drivers/net/wireless/ath/ath6kl/sdio.c | 1 +
drivers/net/wireless/ath/ath6kl/target.h | 1 +
drivers/net/wireless/ath/ath6kl/testmode.c | 1 +
drivers/net/wireless/ath/ath6kl/testmode.h | 1 +
drivers/net/wireless/ath/ath6kl/txrx.c | 1 +
drivers/net/wireless/ath/ath6kl/usb.c | 1 +
drivers/net/wireless/ath/ath6kl/wmi.c | 1 +
drivers/net/wireless/ath/ath6kl/wmi.h | 1 +
25 files changed, 26 insertions(+), 1 deletion(-)
(limited to 'drivers/net/wireless/ath/ath6kl/debug.h')
diff --git a/drivers/net/wireless/ath/ath6kl/Makefile b/drivers/net/wireless/ath/ath6kl/Makefile
index 9ba42fa0496..85746c3eb02 100644
--- a/drivers/net/wireless/ath/ath6kl/Makefile
+++ b/drivers/net/wireless/ath/ath6kl/Makefile
@@ -1,5 +1,6 @@
#------------------------------------------------------------------------------
-# Copyright (c) 2004-2010 Atheros Communications Inc.
+# Copyright (c) 2004-2011 Atheros Communications Inc.
+# Copyright (c) 2011-2012 Qualcomm Atheros, Inc.
# All rights reserved.
#
#
diff --git a/drivers/net/wireless/ath/ath6kl/bmi.c b/drivers/net/wireless/ath/ath6kl/bmi.c
index aef00d5a143..05d1d8941fd 100644
--- a/drivers/net/wireless/ath/ath6kl/bmi.c
+++ b/drivers/net/wireless/ath/ath6kl/bmi.c
@@ -1,5 +1,6 @@
/*
* Copyright (c) 2004-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2012 Qualcomm Atheros, Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
diff --git a/drivers/net/wireless/ath/ath6kl/bmi.h b/drivers/net/wireless/ath/ath6kl/bmi.h
index f1ca6812456..114f7b265a3 100644
--- a/drivers/net/wireless/ath/ath6kl/bmi.h
+++ b/drivers/net/wireless/ath/ath6kl/bmi.h
@@ -1,5 +1,6 @@
/*
* Copyright (c) 2004-2011 Atheros Communications Inc.
+ * Copyright (c) 2011 Qualcomm Atheros, Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
diff --git a/drivers/net/wireless/ath/ath6kl/cfg80211.c b/drivers/net/wireless/ath/ath6kl/cfg80211.c
index d1922d8eb3b..a91f521c522 100644
--- a/drivers/net/wireless/ath/ath6kl/cfg80211.c
+++ b/drivers/net/wireless/ath/ath6kl/cfg80211.c
@@ -1,5 +1,6 @@
/*
* Copyright (c) 2004-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2012 Qualcomm Atheros, Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
diff --git a/drivers/net/wireless/ath/ath6kl/cfg80211.h b/drivers/net/wireless/ath/ath6kl/cfg80211.h
index 3c693b7c0ef..c5def436417 100644
--- a/drivers/net/wireless/ath/ath6kl/cfg80211.h
+++ b/drivers/net/wireless/ath/ath6kl/cfg80211.h
@@ -1,5 +1,6 @@
/*
* Copyright (c) 2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2012 Qualcomm Atheros, Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
diff --git a/drivers/net/wireless/ath/ath6kl/common.h b/drivers/net/wireless/ath/ath6kl/common.h
index f89f1e180da..a60e78c0472 100644
--- a/drivers/net/wireless/ath/ath6kl/common.h
+++ b/drivers/net/wireless/ath/ath6kl/common.h
@@ -1,5 +1,6 @@
/*
* Copyright (c) 2010-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2012 Qualcomm Atheros, Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
diff --git a/drivers/net/wireless/ath/ath6kl/core.c b/drivers/net/wireless/ath/ath6kl/core.c
index 722ca59b88c..c4926cf1121 100644
--- a/drivers/net/wireless/ath/ath6kl/core.c
+++ b/drivers/net/wireless/ath/ath6kl/core.c
@@ -1,5 +1,6 @@
/*
* Copyright (c) 2004-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2012 Qualcomm Atheros, Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
diff --git a/drivers/net/wireless/ath/ath6kl/core.h b/drivers/net/wireless/ath/ath6kl/core.h
index 4ff06a32678..ec7d6b67b7f 100644
--- a/drivers/net/wireless/ath/ath6kl/core.h
+++ b/drivers/net/wireless/ath/ath6kl/core.h
@@ -1,5 +1,6 @@
/*
* Copyright (c) 2010-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2012 Qualcomm Atheros, Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
diff --git a/drivers/net/wireless/ath/ath6kl/debug.c b/drivers/net/wireless/ath/ath6kl/debug.c
index ec32ff69216..3d0713dfe3b 100644
--- a/drivers/net/wireless/ath/ath6kl/debug.c
+++ b/drivers/net/wireless/ath/ath6kl/debug.c
@@ -1,5 +1,6 @@
/*
* Copyright (c) 2004-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2012 Qualcomm Atheros, Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
diff --git a/drivers/net/wireless/ath/ath6kl/debug.h b/drivers/net/wireless/ath/ath6kl/debug.h
index c4be6e50996..c5d5e6c8259 100644
--- a/drivers/net/wireless/ath/ath6kl/debug.h
+++ b/drivers/net/wireless/ath/ath6kl/debug.h
@@ -1,5 +1,6 @@
/*
* Copyright (c) 2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2012 Qualcomm Atheros, Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
diff --git a/drivers/net/wireless/ath/ath6kl/hif-ops.h b/drivers/net/wireless/ath/ath6kl/hif-ops.h
index 2fe1dadfc77..fd84086638e 100644
--- a/drivers/net/wireless/ath/ath6kl/hif-ops.h
+++ b/drivers/net/wireless/ath/ath6kl/hif-ops.h
@@ -1,5 +1,6 @@
/*
* Copyright (c) 2004-2011 Atheros Communications Inc.
+ * Copyright (c) 2011 Qualcomm Atheros, Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
diff --git a/drivers/net/wireless/ath/ath6kl/hif.c b/drivers/net/wireless/ath/ath6kl/hif.c
index e911737ab34..18c7f645331 100644
--- a/drivers/net/wireless/ath/ath6kl/hif.c
+++ b/drivers/net/wireless/ath/ath6kl/hif.c
@@ -1,5 +1,6 @@
/*
* Copyright (c) 2007-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2012 Qualcomm Atheros, Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
diff --git a/drivers/net/wireless/ath/ath6kl/hif.h b/drivers/net/wireless/ath/ath6kl/hif.h
index 699a036f3a4..fb4186f5d43 100644
--- a/drivers/net/wireless/ath/ath6kl/hif.h
+++ b/drivers/net/wireless/ath/ath6kl/hif.h
@@ -1,5 +1,6 @@
/*
* Copyright (c) 2004-2011 Atheros Communications Inc.
+ * Copyright (c) 2011 Qualcomm Atheros, Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
diff --git a/drivers/net/wireless/ath/ath6kl/htc.c b/drivers/net/wireless/ath/ath6kl/htc.c
index 2d721903640..1385f719ad0 100644
--- a/drivers/net/wireless/ath/ath6kl/htc.c
+++ b/drivers/net/wireless/ath/ath6kl/htc.c
@@ -1,5 +1,6 @@
/*
* Copyright (c) 2007-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2012 Qualcomm Atheros, Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
diff --git a/drivers/net/wireless/ath/ath6kl/htc.h b/drivers/net/wireless/ath/ath6kl/htc.h
index 57672e1ed1a..84a2ab52aa6 100644
--- a/drivers/net/wireless/ath/ath6kl/htc.h
+++ b/drivers/net/wireless/ath/ath6kl/htc.h
@@ -1,5 +1,6 @@
/*
* Copyright (c) 2004-2011 Atheros Communications Inc.
+ * Copyright (c) 2011 Qualcomm Atheros, Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
diff --git a/drivers/net/wireless/ath/ath6kl/init.c b/drivers/net/wireless/ath/ath6kl/init.c
index 0d76c377810..6183d579492 100644
--- a/drivers/net/wireless/ath/ath6kl/init.c
+++ b/drivers/net/wireless/ath/ath6kl/init.c
@@ -1,6 +1,7 @@
/*
* Copyright (c) 2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2012 Qualcomm Atheros, Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
diff --git a/drivers/net/wireless/ath/ath6kl/main.c b/drivers/net/wireless/ath/ath6kl/main.c
index b96d01a7919..d463a18332d 100644
--- a/drivers/net/wireless/ath/ath6kl/main.c
+++ b/drivers/net/wireless/ath/ath6kl/main.c
@@ -1,5 +1,6 @@
/*
* Copyright (c) 2004-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2012 Qualcomm Atheros, Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
diff --git a/drivers/net/wireless/ath/ath6kl/sdio.c b/drivers/net/wireless/ath/ath6kl/sdio.c
index 4febee72349..2826613b193 100644
--- a/drivers/net/wireless/ath/ath6kl/sdio.c
+++ b/drivers/net/wireless/ath/ath6kl/sdio.c
@@ -1,5 +1,6 @@
/*
* Copyright (c) 2004-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2012 Qualcomm Atheros, Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
diff --git a/drivers/net/wireless/ath/ath6kl/target.h b/drivers/net/wireless/ath/ath6kl/target.h
index 108a723a108..ac27962f8fc 100644
--- a/drivers/net/wireless/ath/ath6kl/target.h
+++ b/drivers/net/wireless/ath/ath6kl/target.h
@@ -1,5 +1,6 @@
/*
* Copyright (c) 2004-2010 Atheros Communications Inc.
+ * Copyright (c) 2011 Qualcomm Atheros, Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
diff --git a/drivers/net/wireless/ath/ath6kl/testmode.c b/drivers/net/wireless/ath/ath6kl/testmode.c
index f0cd61d6188..6675c92b542 100644
--- a/drivers/net/wireless/ath/ath6kl/testmode.c
+++ b/drivers/net/wireless/ath/ath6kl/testmode.c
@@ -1,5 +1,6 @@
/*
* Copyright (c) 2010-2011 Atheros Communications Inc.
+ * Copyright (c) 2011 Qualcomm Atheros, Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
diff --git a/drivers/net/wireless/ath/ath6kl/testmode.h b/drivers/net/wireless/ath/ath6kl/testmode.h
index 7fd47a62d07..fe651d6707d 100644
--- a/drivers/net/wireless/ath/ath6kl/testmode.h
+++ b/drivers/net/wireless/ath/ath6kl/testmode.h
@@ -1,5 +1,6 @@
/*
* Copyright (c) 2010-2011 Atheros Communications Inc.
+ * Copyright (c) 2011 Qualcomm Atheros, Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
diff --git a/drivers/net/wireless/ath/ath6kl/txrx.c b/drivers/net/wireless/ath/ath6kl/txrx.c
index a3dc6943c7f..87d46460a52 100644
--- a/drivers/net/wireless/ath/ath6kl/txrx.c
+++ b/drivers/net/wireless/ath/ath6kl/txrx.c
@@ -1,5 +1,6 @@
/*
* Copyright (c) 2004-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2012 Qualcomm Atheros, Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
diff --git a/drivers/net/wireless/ath/ath6kl/usb.c b/drivers/net/wireless/ath/ath6kl/usb.c
index c72567c6d33..325b1224c2b 100644
--- a/drivers/net/wireless/ath/ath6kl/usb.c
+++ b/drivers/net/wireless/ath/ath6kl/usb.c
@@ -1,5 +1,6 @@
/*
* Copyright (c) 2007-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2012 Qualcomm Atheros, Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
diff --git a/drivers/net/wireless/ath/ath6kl/wmi.c b/drivers/net/wireless/ath/ath6kl/wmi.c
index 18fa9aa8af9..bbbe0a74d3c 100644
--- a/drivers/net/wireless/ath/ath6kl/wmi.c
+++ b/drivers/net/wireless/ath/ath6kl/wmi.c
@@ -1,5 +1,6 @@
/*
* Copyright (c) 2004-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2012 Qualcomm Atheros, Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
diff --git a/drivers/net/wireless/ath/ath6kl/wmi.h b/drivers/net/wireless/ath/ath6kl/wmi.h
index e7919869725..e7d031b8451 100644
--- a/drivers/net/wireless/ath/ath6kl/wmi.h
+++ b/drivers/net/wireless/ath/ath6kl/wmi.h
@@ -1,5 +1,6 @@
/*
* Copyright (c) 2010-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2012 Qualcomm Atheros, Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
--
cgit v1.2.3-70-g09d2
From 068a4633bf42501db3ec934beff07cd50c1b7e9d Mon Sep 17 00:00:00 2001
From: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Date: Tue, 6 Mar 2012 14:39:40 +0530
Subject: ath6kl: Fix kernel panic while receiving fwlog during boot
"ath6kl: Defer wiphy and netdev registration till the end of ath6kl_core_init()"
causes kernel panic by accessing the unallocated debug resources during
boot time. To fix this, split the debug initialization funtion into two,
one initializes the debug resource and the other takes care of debugfs
initialization. When this issue shows up the kernel crash dump would
look like
ath6kl_debug_fwlog_event+0x9c/0x10a
[<c10666c9>] register_lock_class+0x57/0x288
[<c1065cd3>] ? trace_hardirqs_on+0xb/0xd
[<f801f4c9>] ? ath6kl_debug_fwlog_event+0x9c/0x10a
[<c1066a8a>] __lock_acquire+0x96/0xbe5
[<c106007b>] ? alarmtimer_suspend+0x80/0x127
[<c10258da>] ? vprintk+0x394/0x3b1
[<f801f4c9>] ? ath6kl_debug_fwlog_event+0x9c/0x10a
[<c10676b3>] lock_acquire+0xda/0xf9
[<f801f4c9>] ? ath6kl_debug_fwlog_event+0x9c/0x10a
[<c1532ce3>] _raw_spin_lock+0x28/0x58
[<f801f4c9>] ? ath6kl_debug_fwlog_event+0x9c/0x10a
[<f801f4c9>] ath6kl_debug_fwlog_event+0x9c/0x10a
[<f80310a4>] ath6kl_wmi_control_rx+0x69d/0xb50 [ath6kl_core]
[<f802d2e1>] ? ath6kl_rx+0x3c/0x839 [ath6kl_core]
[<f802d35d>] ath6kl_rx+0xb8/0x839 [ath6kl_core]
[<c104b81e>] ? local_clock+0x2d/0x4e
[<c102a0af>] ? _local_bh_enable_ip+0x94/0x98
[<f802bfc0>] ? ath6kl_alloc_amsdu_rxbuf+0xb7/0xb7
[<f8023b28>] ath6kl_htc_rxmsg_pending_handler+0x891/0x988 [ath6kl_core]
[<f802bf00>] ? ath6kl_refill_amsdu_rxbufs+0x89/0x92
[<f802d2a5>] ? aggr_timeout+0xed/0xed [ath6kl_core]
[<f802bfc0>] ? ath6kl_alloc_amsdu_rxbuf+0xb7/0xb7
[<f802c420>] ? ath6kl_tx_complete+0x376/0x376 [ath6kl_core]
[<f8020e92>] ath6kl_hif_intr_bh_handler+0xf7/0x33e
[<c138ab00>] ? mmc_host_disable+0x15/0x3a
[<f8123b5c>] ath6kl_sdio_irq_handler+0x3c/0x90 [ath6kl_sdio]
[<c1392f56>] sdio_irq_thread+0xb6/0x29c
[<c1392ea0>] ? sdio_claim_irq+0x1cb/0x1cb
[<c103d4c0>] kthread+0x67/0x6c
[<c103d459>] ? __init_kthread_worker+0x42/0x42
[<c153903a>] kernel_thread_helper+0x6/0xd
BUG: unable to handle kernel NULL pointer dereference at
EIP: [<f801f4d4>] ath6kl_debug_fwlog_event+0xa7/0x10a
kvalo: rename new function to ath6kl_debug_init_fs() and add a comment
why it's needed
Reported-by: Kalle Valo <kvalo@qca.qualcomm.com>
Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
drivers/net/wireless/ath/ath6kl/core.c | 9 +++++----
drivers/net/wireless/ath/ath6kl/debug.c | 10 +++++++++-
drivers/net/wireless/ath/ath6kl/debug.h | 9 +++++++--
3 files changed, 21 insertions(+), 7 deletions(-)
(limited to 'drivers/net/wireless/ath/ath6kl/debug.h')
diff --git a/drivers/net/wireless/ath/ath6kl/core.c b/drivers/net/wireless/ath/ath6kl/core.c
index e66cf4399b6..84dd9786622 100644
--- a/drivers/net/wireless/ath/ath6kl/core.c
+++ b/drivers/net/wireless/ath/ath6kl/core.c
@@ -124,6 +124,8 @@ int ath6kl_core_init(struct ath6kl *ar)
set_bit(FIRST_BOOT, &ar->flag);
+ ath6kl_debug_init(ar);
+
ret = ath6kl_init_hw_start(ar);
if (ret) {
ath6kl_err("Failed to start hardware: %d\n", ret);
@@ -138,7 +140,7 @@ int ath6kl_core_init(struct ath6kl *ar)
if (ret)
goto err_rxbuf_cleanup;
- ret = ath6kl_debug_init(ar);
+ ret = ath6kl_debug_init_fs(ar);
if (ret) {
wiphy_unregister(ar->wiphy);
goto err_rxbuf_cleanup;
@@ -159,7 +161,7 @@ int ath6kl_core_init(struct ath6kl *ar)
ath6kl_err("Failed to instantiate a network device\n");
ret = -ENOMEM;
wiphy_unregister(ar->wiphy);
- goto err_debug_init;
+ goto err_rxbuf_cleanup;
}
ath6kl_dbg(ATH6KL_DBG_TRC, "%s: name=%s dev=0x%p, ar=0x%p\n",
@@ -167,9 +169,8 @@ int ath6kl_core_init(struct ath6kl *ar)
return ret;
-err_debug_init:
- ath6kl_debug_cleanup(ar);
err_rxbuf_cleanup:
+ ath6kl_debug_cleanup(ar);
ath6kl_htc_flush_rx_buf(ar->htc_target);
ath6kl_cleanup_amsdu_rxbufs(ar);
ath6kl_wmi_shutdown(ar->wmi);
diff --git a/drivers/net/wireless/ath/ath6kl/debug.c b/drivers/net/wireless/ath/ath6kl/debug.c
index 28b516ff3d5..645f923f79b 100755
--- a/drivers/net/wireless/ath/ath6kl/debug.c
+++ b/drivers/net/wireless/ath/ath6kl/debug.c
@@ -1722,7 +1722,7 @@ static const struct file_operations fops_power_params = {
.llseek = default_llseek,
};
-int ath6kl_debug_init(struct ath6kl *ar)
+void ath6kl_debug_init(struct ath6kl *ar)
{
skb_queue_head_init(&ar->debug.fwlog_queue);
init_completion(&ar->debug.fwlog_completion);
@@ -1732,7 +1732,15 @@ int ath6kl_debug_init(struct ath6kl *ar)
* value from the firmware.
*/
ar->debug.fwlog_mask = 0;
+}
+/*
+ * Initialisation needs to happen in two stages as fwlog events can come
+ * before cfg80211 is initialised, and debugfs depends on cfg80211
+ * initialisation.
+ */
+int ath6kl_debug_init_fs(struct ath6kl *ar)
+{
ar->debugfs_phy = debugfs_create_dir("ath6kl",
ar->wiphy->debugfsdir);
if (!ar->debugfs_phy)
diff --git a/drivers/net/wireless/ath/ath6kl/debug.h b/drivers/net/wireless/ath/ath6kl/debug.h
index c5d5e6c8259..1803a0baae8 100644
--- a/drivers/net/wireless/ath/ath6kl/debug.h
+++ b/drivers/net/wireless/ath/ath6kl/debug.h
@@ -78,7 +78,8 @@ int ath6kl_debug_roam_tbl_event(struct ath6kl *ar, const void *buf,
size_t len);
void ath6kl_debug_set_keepalive(struct ath6kl *ar, u8 keepalive);
void ath6kl_debug_set_disconnect_timeout(struct ath6kl *ar, u8 timeout);
-int ath6kl_debug_init(struct ath6kl *ar);
+void ath6kl_debug_init(struct ath6kl *ar);
+int ath6kl_debug_init_fs(struct ath6kl *ar);
void ath6kl_debug_cleanup(struct ath6kl *ar);
#else
@@ -128,7 +129,11 @@ static inline void ath6kl_debug_set_disconnect_timeout(struct ath6kl *ar,
{
}
-static inline int ath6kl_debug_init(struct ath6kl *ar)
+static inline void ath6kl_debug_init(struct ath6kl *ar)
+{
+}
+
+static inline int ath6kl_debug_init_fs(struct ath6kl *ar)
{
return 0;
}
--
cgit v1.2.3-70-g09d2