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path: root/drivers/net/wimax/i2400m/driver.c
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Diffstat (limited to 'drivers/net/wimax/i2400m/driver.c')
-rw-r--r--drivers/net/wimax/i2400m/driver.c500
1 files changed, 364 insertions, 136 deletions
diff --git a/drivers/net/wimax/i2400m/driver.c b/drivers/net/wimax/i2400m/driver.c
index 304f0443ca4b..96a615fe09de 100644
--- a/drivers/net/wimax/i2400m/driver.c
+++ b/drivers/net/wimax/i2400m/driver.c
@@ -41,8 +41,10 @@
* __i2400m_dev_start()
*
* i2400m_setup()
+ * i2400m->bus_setup()
* i2400m_bootrom_init()
* register_netdev()
+ * wimax_dev_add()
* i2400m_dev_start()
* __i2400m_dev_start()
* i2400m_dev_bootstrap()
@@ -50,15 +52,15 @@
* i2400m->bus_dev_start()
* i2400m_firmware_check()
* i2400m_check_mac_addr()
- * wimax_dev_add()
*
* i2400m_release()
- * wimax_dev_rm()
* i2400m_dev_stop()
* __i2400m_dev_stop()
* i2400m_dev_shutdown()
* i2400m->bus_dev_stop()
* i2400m_tx_release()
+ * i2400m->bus_release()
+ * wimax_dev_rm()
* unregister_netdev()
*/
#include "i2400m.h"
@@ -66,6 +68,7 @@
#include <linux/wimax/i2400m.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
+#include <linux/suspend.h>
#define D_SUBMODULE driver
#include "debug-levels.h"
@@ -90,76 +93,39 @@ MODULE_PARM_DESC(power_save_disabled,
"False by default (so the device is told to do power "
"saving).");
-/**
- * i2400m_queue_work - schedule work on a i2400m's queue
- *
- * @i2400m: device descriptor
- *
- * @fn: function to run to execute work. It gets passed a 'struct
- * work_struct' that is wrapped in a 'struct i2400m_work'. Once
- * done, you have to (1) i2400m_put(i2400m_work->i2400m) and then
- * (2) kfree(i2400m_work).
- *
- * @gfp_flags: GFP flags for memory allocation.
- *
- * @pl: pointer to a payload buffer that you want to pass to the _work
- * function. Use this to pack (for example) a struct with extra
- * arguments.
- *
- * @pl_size: size of the payload buffer.
- *
- * We do this quite often, so this just saves typing; allocate a
- * wrapper for a i2400m, get a ref to it, pack arguments and launch
- * the work.
- *
- * A usual workflow is:
- *
- * struct my_work_args {
- * void *something;
- * int whatever;
- * };
- * ...
- *
- * struct my_work_args my_args = {
- * .something = FOO,
- * .whaetever = BLAH
- * };
- * i2400m_queue_work(i2400m, 1, my_work_function, GFP_KERNEL,
- * &args, sizeof(args))
- *
- * And now the work function can unpack the arguments and call the
- * real function (or do the job itself):
- *
- * static
- * void my_work_fn((struct work_struct *ws)
- * {
- * struct i2400m_work *iw =
- * container_of(ws, struct i2400m_work, ws);
- * struct my_work_args *my_args = (void *) iw->pl;
- *
- * my_work(iw->i2400m, my_args->something, my_args->whatevert);
- * }
- */
-int i2400m_queue_work(struct i2400m *i2400m,
- void (*fn)(struct work_struct *), gfp_t gfp_flags,
- const void *pl, size_t pl_size)
+static char i2400m_debug_params[128];
+module_param_string(debug, i2400m_debug_params, sizeof(i2400m_debug_params),
+ 0644);
+MODULE_PARM_DESC(debug,
+ "String of space-separated NAME:VALUE pairs, where NAMEs "
+ "are the different debug submodules and VALUE are the "
+ "initial debug value to set.");
+
+static char i2400m_barkers_params[128];
+module_param_string(barkers, i2400m_barkers_params,
+ sizeof(i2400m_barkers_params), 0644);
+MODULE_PARM_DESC(barkers,
+ "String of comma-separated 32-bit values; each is "
+ "recognized as the value the device sends as a reboot "
+ "signal; values are appended to a list--setting one value "
+ "as zero cleans the existing list and starts a new one.");
+
+static
+struct i2400m_work *__i2400m_work_setup(
+ struct i2400m *i2400m, void (*fn)(struct work_struct *),
+ gfp_t gfp_flags, const void *pl, size_t pl_size)
{
- int result;
struct i2400m_work *iw;
- BUG_ON(i2400m->work_queue == NULL);
- result = -ENOMEM;
iw = kzalloc(sizeof(*iw) + pl_size, gfp_flags);
if (iw == NULL)
- goto error_kzalloc;
+ return NULL;
iw->i2400m = i2400m_get(i2400m);
+ iw->pl_size = pl_size;
memcpy(iw->pl, pl, pl_size);
INIT_WORK(&iw->ws, fn);
- result = queue_work(i2400m->work_queue, &iw->ws);
-error_kzalloc:
- return result;
+ return iw;
}
-EXPORT_SYMBOL_GPL(i2400m_queue_work);
/*
@@ -175,21 +141,19 @@ EXPORT_SYMBOL_GPL(i2400m_queue_work);
* it should not happen.
*/
int i2400m_schedule_work(struct i2400m *i2400m,
- void (*fn)(struct work_struct *), gfp_t gfp_flags)
+ void (*fn)(struct work_struct *), gfp_t gfp_flags,
+ const void *pl, size_t pl_size)
{
int result;
struct i2400m_work *iw;
result = -ENOMEM;
- iw = kzalloc(sizeof(*iw), gfp_flags);
- if (iw == NULL)
- goto error_kzalloc;
- iw->i2400m = i2400m_get(i2400m);
- INIT_WORK(&iw->ws, fn);
- result = schedule_work(&iw->ws);
- if (result == 0)
- result = -ENXIO;
-error_kzalloc:
+ iw = __i2400m_work_setup(i2400m, fn, gfp_flags, pl, pl_size);
+ if (iw != NULL) {
+ result = schedule_work(&iw->ws);
+ if (WARN_ON(result == 0))
+ result = -ENXIO;
+ }
return result;
}
@@ -291,7 +255,7 @@ int i2400m_op_reset(struct wimax_dev *wimax_dev)
mutex_lock(&i2400m->init_mutex);
i2400m->reset_ctx = &ctx;
mutex_unlock(&i2400m->init_mutex);
- result = i2400m->bus_reset(i2400m, I2400M_RT_WARM);
+ result = i2400m_reset(i2400m, I2400M_RT_WARM);
if (result < 0)
goto out;
result = wait_for_completion_timeout(&ctx.completion, 4*HZ);
@@ -420,9 +384,15 @@ retry:
dev_err(dev, "cannot create workqueue\n");
goto error_create_workqueue;
}
- result = i2400m->bus_dev_start(i2400m);
- if (result < 0)
- goto error_bus_dev_start;
+ if (i2400m->bus_dev_start) {
+ result = i2400m->bus_dev_start(i2400m);
+ if (result < 0)
+ goto error_bus_dev_start;
+ }
+ i2400m->ready = 1;
+ wmb(); /* see i2400m->ready's documentation */
+ /* process pending reports from the device */
+ queue_work(i2400m->work_queue, &i2400m->rx_report_ws);
result = i2400m_firmware_check(i2400m); /* fw versions ok? */
if (result < 0)
goto error_fw_check;
@@ -430,8 +400,6 @@ retry:
result = i2400m_check_mac_addr(i2400m);
if (result < 0)
goto error_check_mac_addr;
- i2400m->ready = 1;
- wimax_state_change(wimax_dev, WIMAX_ST_UNINITIALIZED);
result = i2400m_dev_initialize(i2400m);
if (result < 0)
goto error_dev_initialize;
@@ -443,8 +411,12 @@ retry:
error_dev_initialize:
error_check_mac_addr:
+ i2400m->ready = 0;
+ wmb(); /* see i2400m->ready's documentation */
+ flush_workqueue(i2400m->work_queue);
error_fw_check:
- i2400m->bus_dev_stop(i2400m);
+ if (i2400m->bus_dev_stop)
+ i2400m->bus_dev_stop(i2400m);
error_bus_dev_start:
destroy_workqueue(i2400m->work_queue);
error_create_workqueue:
@@ -466,11 +438,15 @@ error_bootstrap:
static
int i2400m_dev_start(struct i2400m *i2400m, enum i2400m_bri bm_flags)
{
- int result;
+ int result = 0;
mutex_lock(&i2400m->init_mutex); /* Well, start the device */
- result = __i2400m_dev_start(i2400m, bm_flags);
- if (result >= 0)
- i2400m->updown = 1;
+ if (i2400m->updown == 0) {
+ result = __i2400m_dev_start(i2400m, bm_flags);
+ if (result >= 0) {
+ i2400m->updown = 1;
+ wmb(); /* see i2400m->updown's documentation */
+ }
+ }
mutex_unlock(&i2400m->init_mutex);
return result;
}
@@ -495,9 +471,20 @@ void __i2400m_dev_stop(struct i2400m *i2400m)
d_fnstart(3, dev, "(i2400m %p)\n", i2400m);
wimax_state_change(wimax_dev, __WIMAX_ST_QUIESCING);
+ i2400m_msg_to_dev_cancel_wait(i2400m, -EL3RST);
+ complete(&i2400m->msg_completion);
+ i2400m_net_wake_stop(i2400m);
i2400m_dev_shutdown(i2400m);
- i2400m->ready = 0;
- i2400m->bus_dev_stop(i2400m);
+ /*
+ * Make sure no report hooks are running *before* we stop the
+ * communication infrastructure with the device.
+ */
+ i2400m->ready = 0; /* nobody can queue work anymore */
+ wmb(); /* see i2400m->ready's documentation */
+ flush_workqueue(i2400m->work_queue);
+
+ if (i2400m->bus_dev_stop)
+ i2400m->bus_dev_stop(i2400m);
destroy_workqueue(i2400m->work_queue);
i2400m_rx_release(i2400m);
i2400m_tx_release(i2400m);
@@ -518,12 +505,139 @@ void i2400m_dev_stop(struct i2400m *i2400m)
if (i2400m->updown) {
__i2400m_dev_stop(i2400m);
i2400m->updown = 0;
+ wmb(); /* see i2400m->updown's documentation */
}
mutex_unlock(&i2400m->init_mutex);
}
/*
+ * Listen to PM events to cache the firmware before suspend/hibernation
+ *
+ * When the device comes out of suspend, it might go into reset and
+ * firmware has to be uploaded again. At resume, most of the times, we
+ * can't load firmware images from disk, so we need to cache it.
+ *
+ * i2400m_fw_cache() will allocate a kobject and attach the firmware
+ * to it; that way we don't have to worry too much about the fw loader
+ * hitting a race condition.
+ *
+ * Note: modus operandi stolen from the Orinoco driver; thx.
+ */
+static
+int i2400m_pm_notifier(struct notifier_block *notifier,
+ unsigned long pm_event,
+ void *unused)
+{
+ struct i2400m *i2400m =
+ container_of(notifier, struct i2400m, pm_notifier);
+ struct device *dev = i2400m_dev(i2400m);
+
+ d_fnstart(3, dev, "(i2400m %p pm_event %lx)\n", i2400m, pm_event);
+ switch (pm_event) {
+ case PM_HIBERNATION_PREPARE:
+ case PM_SUSPEND_PREPARE:
+ i2400m_fw_cache(i2400m);
+ break;
+ case PM_POST_RESTORE:
+ /* Restore from hibernation failed. We need to clean
+ * up in exactly the same way, so fall through. */
+ case PM_POST_HIBERNATION:
+ case PM_POST_SUSPEND:
+ i2400m_fw_uncache(i2400m);
+ break;
+
+ case PM_RESTORE_PREPARE:
+ default:
+ break;
+ }
+ d_fnend(3, dev, "(i2400m %p pm_event %lx) = void\n", i2400m, pm_event);
+ return NOTIFY_DONE;
+}
+
+
+/*
+ * pre-reset is called before a device is going on reset
+ *
+ * This has to be followed by a call to i2400m_post_reset(), otherwise
+ * bad things might happen.
+ */
+int i2400m_pre_reset(struct i2400m *i2400m)
+{
+ int result;
+ struct device *dev = i2400m_dev(i2400m);
+
+ d_fnstart(3, dev, "(i2400m %p)\n", i2400m);
+ d_printf(1, dev, "pre-reset shut down\n");
+
+ result = 0;
+ mutex_lock(&i2400m->init_mutex);
+ if (i2400m->updown) {
+ netif_tx_disable(i2400m->wimax_dev.net_dev);
+ __i2400m_dev_stop(i2400m);
+ result = 0;
+ /* down't set updown to zero -- this way
+ * post_reset can restore properly */
+ }
+ mutex_unlock(&i2400m->init_mutex);
+ if (i2400m->bus_release)
+ i2400m->bus_release(i2400m);
+ d_fnend(3, dev, "(i2400m %p) = %d\n", i2400m, result);
+ return result;
+}
+EXPORT_SYMBOL_GPL(i2400m_pre_reset);
+
+
+/*
+ * Restore device state after a reset
+ *
+ * Do the work needed after a device reset to bring it up to the same
+ * state as it was before the reset.
+ *
+ * NOTE: this requires i2400m->init_mutex taken
+ */
+int i2400m_post_reset(struct i2400m *i2400m)
+{
+ int result = 0;
+ struct device *dev = i2400m_dev(i2400m);
+
+ d_fnstart(3, dev, "(i2400m %p)\n", i2400m);
+ d_printf(1, dev, "post-reset start\n");
+ if (i2400m->bus_setup) {
+ result = i2400m->bus_setup(i2400m);
+ if (result < 0) {
+ dev_err(dev, "bus-specific setup failed: %d\n",
+ result);
+ goto error_bus_setup;
+ }
+ }
+ mutex_lock(&i2400m->init_mutex);
+ if (i2400m->updown) {
+ result = __i2400m_dev_start(
+ i2400m, I2400M_BRI_SOFT | I2400M_BRI_MAC_REINIT);
+ if (result < 0)
+ goto error_dev_start;
+ }
+ mutex_unlock(&i2400m->init_mutex);
+ d_fnend(3, dev, "(i2400m %p) = %d\n", i2400m, result);
+ return result;
+
+error_dev_start:
+ if (i2400m->bus_release)
+ i2400m->bus_release(i2400m);
+error_bus_setup:
+ /* even if the device was up, it could not be recovered, so we
+ * mark it as down. */
+ i2400m->updown = 0;
+ wmb(); /* see i2400m->updown's documentation */
+ mutex_unlock(&i2400m->init_mutex);
+ d_fnend(3, dev, "(i2400m %p) = %d\n", i2400m, result);
+ return result;
+}
+EXPORT_SYMBOL_GPL(i2400m_post_reset);
+
+
+/*
* The device has rebooted; fix up the device and the driver
*
* Tear down the driver communication with the device, reload the
@@ -542,56 +656,69 @@ void i2400m_dev_stop(struct i2400m *i2400m)
* _stop()], don't do anything, let it fail and handle it.
*
* This function is ran always in a thread context
+ *
+ * This function gets passed, as payload to i2400m_work() a 'const
+ * char *' ptr with a "reason" why the reset happened (for messages).
*/
static
void __i2400m_dev_reset_handle(struct work_struct *ws)
{
int result;
struct i2400m_work *iw = container_of(ws, struct i2400m_work, ws);
+ const char *reason;
struct i2400m *i2400m = iw->i2400m;
struct device *dev = i2400m_dev(i2400m);
- enum wimax_st wimax_state;
struct i2400m_reset_ctx *ctx = i2400m->reset_ctx;
- d_fnstart(3, dev, "(ws %p i2400m %p)\n", ws, i2400m);
+ if (WARN_ON(iw->pl_size != sizeof(reason)))
+ reason = "SW BUG: reason n/a";
+ else
+ memcpy(&reason, iw->pl, sizeof(reason));
+
+ d_fnstart(3, dev, "(ws %p i2400m %p reason %s)\n", ws, i2400m, reason);
+
result = 0;
if (mutex_trylock(&i2400m->init_mutex) == 0) {
/* We are still in i2400m_dev_start() [let it fail] or
* i2400m_dev_stop() [we are shutting down anyway, so
* ignore it] or we are resetting somewhere else. */
- dev_err(dev, "device rebooted\n");
+ dev_err(dev, "device rebooted somewhere else?\n");
i2400m_msg_to_dev_cancel_wait(i2400m, -EL3RST);
complete(&i2400m->msg_completion);
goto out;
}
- wimax_state = wimax_state_get(&i2400m->wimax_dev);
- if (wimax_state < WIMAX_ST_UNINITIALIZED) {
- dev_info(dev, "device rebooted: it is down, ignoring\n");
- goto out_unlock; /* ifconfig up/down wasn't called */
+ if (i2400m->updown == 0) {
+ dev_info(dev, "%s: device is down, doing nothing\n", reason);
+ goto out_unlock;
}
- dev_err(dev, "device rebooted: reinitializing driver\n");
+ dev_err(dev, "%s: reinitializing driver\n", reason);
__i2400m_dev_stop(i2400m);
- i2400m->updown = 0;
result = __i2400m_dev_start(i2400m,
I2400M_BRI_SOFT | I2400M_BRI_MAC_REINIT);
if (result < 0) {
- dev_err(dev, "device reboot: cannot start the device: %d\n",
- result);
- result = i2400m->bus_reset(i2400m, I2400M_RT_BUS);
- if (result >= 0)
- result = -ENODEV;
- } else
- i2400m->updown = 1;
+ i2400m->updown = 0;
+ wmb(); /* see i2400m->updown's documentation */
+ dev_err(dev, "%s: cannot start the device: %d\n",
+ reason, result);
+ result = -EUCLEAN;
+ }
out_unlock:
if (i2400m->reset_ctx) {
ctx->result = result;
complete(&ctx->completion);
}
mutex_unlock(&i2400m->init_mutex);
+ if (result == -EUCLEAN) {
+ /* ops, need to clean up [w/ init_mutex not held] */
+ result = i2400m_reset(i2400m, I2400M_RT_BUS);
+ if (result >= 0)
+ result = -ENODEV;
+ }
out:
i2400m_put(i2400m);
kfree(iw);
- d_fnend(3, dev, "(ws %p i2400m %p) = void\n", ws, i2400m);
+ d_fnend(3, dev, "(ws %p i2400m %p reason %s) = void\n",
+ ws, i2400m, reason);
return;
}
@@ -608,16 +735,104 @@ out:
* reinitializing the driver to handle the reset, calling into the
* bus-specific functions ops as needed.
*/
-int i2400m_dev_reset_handle(struct i2400m *i2400m)
+int i2400m_dev_reset_handle(struct i2400m *i2400m, const char *reason)
{
i2400m->boot_mode = 1;
wmb(); /* Make sure i2400m_msg_to_dev() sees boot_mode */
return i2400m_schedule_work(i2400m, __i2400m_dev_reset_handle,
- GFP_ATOMIC);
+ GFP_ATOMIC, &reason, sizeof(reason));
}
EXPORT_SYMBOL_GPL(i2400m_dev_reset_handle);
+/*
+ * Alloc the command and ack buffers for boot mode
+ *
+ * Get the buffers needed to deal with boot mode messages. These
+ * buffers need to be allocated before the sdio recieve irq is setup.
+ */
+static
+int i2400m_bm_buf_alloc(struct i2400m *i2400m)
+{
+ int result;
+
+ result = -ENOMEM;
+ i2400m->bm_cmd_buf = kzalloc(I2400M_BM_CMD_BUF_SIZE, GFP_KERNEL);
+ if (i2400m->bm_cmd_buf == NULL)
+ goto error_bm_cmd_kzalloc;
+ i2400m->bm_ack_buf = kzalloc(I2400M_BM_ACK_BUF_SIZE, GFP_KERNEL);
+ if (i2400m->bm_ack_buf == NULL)
+ goto error_bm_ack_buf_kzalloc;
+ return 0;
+
+error_bm_ack_buf_kzalloc:
+ kfree(i2400m->bm_cmd_buf);
+error_bm_cmd_kzalloc:
+ return result;
+}
+
+
+/*
+ * Free boot mode command and ack buffers.
+ */
+static
+void i2400m_bm_buf_free(struct i2400m *i2400m)
+{
+ kfree(i2400m->bm_ack_buf);
+ kfree(i2400m->bm_cmd_buf);
+}
+
+
+/**
+ * i2400m_init - Initialize a 'struct i2400m' from all zeroes
+ *
+ * This is a bus-generic API call.
+ */
+void i2400m_init(struct i2400m *i2400m)
+{
+ wimax_dev_init(&i2400m->wimax_dev);
+
+ i2400m->boot_mode = 1;
+ i2400m->rx_reorder = 1;
+ init_waitqueue_head(&i2400m->state_wq);
+
+ spin_lock_init(&i2400m->tx_lock);
+ i2400m->tx_pl_min = UINT_MAX;
+ i2400m->tx_size_min = UINT_MAX;
+
+ spin_lock_init(&i2400m->rx_lock);
+ i2400m->rx_pl_min = UINT_MAX;
+ i2400m->rx_size_min = UINT_MAX;
+ INIT_LIST_HEAD(&i2400m->rx_reports);
+ INIT_WORK(&i2400m->rx_report_ws, i2400m_report_hook_work);
+
+ mutex_init(&i2400m->msg_mutex);
+ init_completion(&i2400m->msg_completion);
+
+ mutex_init(&i2400m->init_mutex);
+ /* wake_tx_ws is initialized in i2400m_tx_setup() */
+}
+EXPORT_SYMBOL_GPL(i2400m_init);
+
+
+int i2400m_reset(struct i2400m *i2400m, enum i2400m_reset_type rt)
+{
+ struct net_device *net_dev = i2400m->wimax_dev.net_dev;
+
+ /*
+ * Make sure we stop TXs and down the carrier before
+ * resetting; this is needed to avoid things like
+ * i2400m_wake_tx() scheduling stuff in parallel.
+ */
+ if (net_dev->reg_state == NETREG_REGISTERED) {
+ netif_tx_disable(net_dev);
+ netif_carrier_off(net_dev);
+ }
+ return i2400m->bus_reset(i2400m, rt);
+}
+EXPORT_SYMBOL_GPL(i2400m_reset);
+
+
/**
* i2400m_setup - bus-generic setup function for the i2400m device
*
@@ -625,13 +840,9 @@ EXPORT_SYMBOL_GPL(i2400m_dev_reset_handle);
*
* Returns: 0 if ok, < 0 errno code on error.
*
- * Initializes the bus-generic parts of the i2400m driver; the
- * bus-specific parts have been initialized, function pointers filled
- * out by the bus-specific probe function.
- *
- * As well, this registers the WiMAX and net device nodes. Once this
- * function returns, the device is operative and has to be ready to
- * receive and send network traffic and WiMAX control operations.
+ * Sets up basic device comunication infrastructure, boots the ROM to
+ * read the MAC address, registers with the WiMAX and network stacks
+ * and then brings up the device.
*/
int i2400m_setup(struct i2400m *i2400m, enum i2400m_bri bm_flags)
{
@@ -645,16 +856,21 @@ int i2400m_setup(struct i2400m *i2400m, enum i2400m_bri bm_flags)
snprintf(wimax_dev->name, sizeof(wimax_dev->name),
"i2400m-%s:%s", dev->bus->name, dev_name(dev));
- i2400m->bm_cmd_buf = kzalloc(I2400M_BM_CMD_BUF_SIZE, GFP_KERNEL);
- if (i2400m->bm_cmd_buf == NULL) {
- dev_err(dev, "cannot allocate USB command buffer\n");
- goto error_bm_cmd_kzalloc;
+ result = i2400m_bm_buf_alloc(i2400m);
+ if (result < 0) {
+ dev_err(dev, "cannot allocate bootmode scratch buffers\n");
+ goto error_bm_buf_alloc;
}
- i2400m->bm_ack_buf = kzalloc(I2400M_BM_ACK_BUF_SIZE, GFP_KERNEL);
- if (i2400m->bm_ack_buf == NULL) {
- dev_err(dev, "cannot allocate USB ack buffer\n");
- goto error_bm_ack_buf_kzalloc;
+
+ if (i2400m->bus_setup) {
+ result = i2400m->bus_setup(i2400m);
+ if (result < 0) {
+ dev_err(dev, "bus-specific setup failed: %d\n",
+ result);
+ goto error_bus_setup;
+ }
}
+
result = i2400m_bootrom_init(i2400m, bm_flags);
if (result < 0) {
dev_err(dev, "read mac addr: bootrom init "
@@ -666,6 +882,9 @@ int i2400m_setup(struct i2400m *i2400m, enum i2400m_bri bm_flags)
goto error_read_mac_addr;
random_ether_addr(i2400m->src_mac_addr);
+ i2400m->pm_notifier.notifier_call = i2400m_pm_notifier;
+ register_pm_notifier(&i2400m->pm_notifier);
+
result = register_netdev(net_dev); /* Okey dokey, bring it up */
if (result < 0) {
dev_err(dev, "cannot register i2400m network device: %d\n",
@@ -674,18 +893,13 @@ int i2400m_setup(struct i2400m *i2400m, enum i2400m_bri bm_flags)
}
netif_carrier_off(net_dev);
- result = i2400m_dev_start(i2400m, bm_flags);
- if (result < 0)
- goto error_dev_start;
-
i2400m->wimax_dev.op_msg_from_user = i2400m_op_msg_from_user;
i2400m->wimax_dev.op_rfkill_sw_toggle = i2400m_op_rfkill_sw_toggle;
i2400m->wimax_dev.op_reset = i2400m_op_reset;
+
result = wimax_dev_add(&i2400m->wimax_dev, net_dev);
if (result < 0)
goto error_wimax_dev_add;
- /* User space needs to do some init stuff */
- wimax_state_change(wimax_dev, WIMAX_ST_UNINITIALIZED);
/* Now setup all that requires a registered net and wimax device. */
result = sysfs_create_group(&net_dev->dev.kobj, &i2400m_dev_attr_group);
@@ -693,30 +907,37 @@ int i2400m_setup(struct i2400m *i2400m, enum i2400m_bri bm_flags)
dev_err(dev, "cannot setup i2400m's sysfs: %d\n", result);
goto error_sysfs_setup;
}
+
result = i2400m_debugfs_add(i2400m);
if (result < 0) {
dev_err(dev, "cannot setup i2400m's debugfs: %d\n", result);
goto error_debugfs_setup;
}
+
+ result = i2400m_dev_start(i2400m, bm_flags);
+ if (result < 0)
+ goto error_dev_start;
d_fnend(3, dev, "(i2400m %p) = %d\n", i2400m, result);
return result;
+error_dev_start:
+ i2400m_debugfs_rm(i2400m);
error_debugfs_setup:
sysfs_remove_group(&i2400m->wimax_dev.net_dev->dev.kobj,
&i2400m_dev_attr_group);
error_sysfs_setup:
wimax_dev_rm(&i2400m->wimax_dev);
error_wimax_dev_add:
- i2400m_dev_stop(i2400m);
-error_dev_start:
unregister_netdev(net_dev);
error_register_netdev:
+ unregister_pm_notifier(&i2400m->pm_notifier);
error_read_mac_addr:
error_bootrom_init:
- kfree(i2400m->bm_ack_buf);
-error_bm_ack_buf_kzalloc:
- kfree(i2400m->bm_cmd_buf);
-error_bm_cmd_kzalloc:
+ if (i2400m->bus_release)
+ i2400m->bus_release(i2400m);
+error_bus_setup:
+ i2400m_bm_buf_free(i2400m);
+error_bm_buf_alloc:
d_fnend(3, dev, "(i2400m %p) = %d\n", i2400m, result);
return result;
}
@@ -735,14 +956,17 @@ void i2400m_release(struct i2400m *i2400m)
d_fnstart(3, dev, "(i2400m %p)\n", i2400m);
netif_stop_queue(i2400m->wimax_dev.net_dev);
+ i2400m_dev_stop(i2400m);
+
i2400m_debugfs_rm(i2400m);
sysfs_remove_group(&i2400m->wimax_dev.net_dev->dev.kobj,
&i2400m_dev_attr_group);
wimax_dev_rm(&i2400m->wimax_dev);
- i2400m_dev_stop(i2400m);
unregister_netdev(i2400m->wimax_dev.net_dev);
- kfree(i2400m->bm_ack_buf);
- kfree(i2400m->bm_cmd_buf);
+ unregister_pm_notifier(&i2400m->pm_notifier);
+ if (i2400m->bus_release)
+ i2400m->bus_release(i2400m);
+ i2400m_bm_buf_free(i2400m);
d_fnend(3, dev, "(i2400m %p) = void\n", i2400m);
}
EXPORT_SYMBOL_GPL(i2400m_release);
@@ -759,6 +983,7 @@ struct d_level D_LEVEL[] = {
D_SUBMODULE_DEFINE(netdev),
D_SUBMODULE_DEFINE(rfkill),
D_SUBMODULE_DEFINE(rx),
+ D_SUBMODULE_DEFINE(sysfs),
D_SUBMODULE_DEFINE(tx),
};
size_t D_LEVEL_SIZE = ARRAY_SIZE(D_LEVEL);
@@ -767,7 +992,9 @@ size_t D_LEVEL_SIZE = ARRAY_SIZE(D_LEVEL);
static
int __init i2400m_driver_init(void)
{
- return 0;
+ d_parse_params(D_LEVEL, D_LEVEL_SIZE, i2400m_debug_params,
+ "i2400m.debug");
+ return i2400m_barker_db_init(i2400m_barkers_params);
}
module_init(i2400m_driver_init);
@@ -776,6 +1003,7 @@ void __exit i2400m_driver_exit(void)
{
/* for scheds i2400m_dev_reset_handle() */
flush_scheduled_work();
+ i2400m_barker_db_exit();
return;
}
module_exit(i2400m_driver_exit);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-29 21:53:00 +0000