#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/suspend.h>
+#include <linux/slab.h>
#define D_SUBMODULE driver
#include "debug-levels.h"
}
-/**
- * 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)
-{
- int result;
- struct i2400m_work *iw;
-
- BUG_ON(i2400m->work_queue == NULL);
- result = -ENOMEM;
- iw = __i2400m_work_setup(i2400m, fn, gfp_flags, pl, pl_size);
- if (iw != NULL) {
- result = queue_work(i2400m->work_queue, &iw->ws);
- if (WARN_ON(result == 0))
- result = -ENXIO;
- }
- return result;
-}
-EXPORT_SYMBOL_GPL(i2400m_queue_work);
-
-
/*
* Schedule i2400m's specific work on the system's queue.
*
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);
/* Extract MAC addresss */
ddi = (void *) skb->data;
BUILD_BUG_ON(ETH_ALEN != sizeof(ddi->mac_address));
- d_printf(2, dev, "GET DEVICE INFO: mac addr "
- "%02x:%02x:%02x:%02x:%02x:%02x\n",
- ddi->mac_address[0], ddi->mac_address[1],
- ddi->mac_address[2], ddi->mac_address[3],
- ddi->mac_address[4], ddi->mac_address[5]);
+ d_printf(2, dev, "GET DEVICE INFO: mac addr %pM\n",
+ ddi->mac_address);
if (!memcmp(net_dev->perm_addr, ddi->mac_address,
sizeof(ddi->mac_address)))
goto ok;
dev_warn(dev, "warning: device reports a different MAC address "
"to that of boot mode's\n");
- dev_warn(dev, "device reports %02x:%02x:%02x:%02x:%02x:%02x\n",
- ddi->mac_address[0], ddi->mac_address[1],
- ddi->mac_address[2], ddi->mac_address[3],
- ddi->mac_address[4], ddi->mac_address[5]);
- dev_warn(dev, "boot mode reported %02x:%02x:%02x:%02x:%02x:%02x\n",
- net_dev->perm_addr[0], net_dev->perm_addr[1],
- net_dev->perm_addr[2], net_dev->perm_addr[3],
- net_dev->perm_addr[4], net_dev->perm_addr[5]);
+ dev_warn(dev, "device reports %pM\n", ddi->mac_address);
+ dev_warn(dev, "boot mode reported %pM\n", net_dev->perm_addr);
if (!memcmp(zeromac, ddi->mac_address, sizeof(zeromac)))
dev_err(dev, "device reports an invalid MAC address, "
"not updating\n");
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;
result = i2400m_check_mac_addr(i2400m);
if (result < 0)
goto error_check_mac_addr;
- wimax_state_change(wimax_dev, WIMAX_ST_UNINITIALIZED);
result = i2400m_dev_initialize(i2400m);
if (result < 0)
goto error_dev_initialize;
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:
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);
/*
wmb(); /* see i2400m->ready's documentation */
flush_workqueue(i2400m->work_queue);
- i2400m->bus_dev_stop(i2400m);
+ if (i2400m->bus_dev_stop)
+ i2400m->bus_dev_stop(i2400m);
destroy_workqueue(i2400m->work_queue);
i2400m_rx_release(i2400m);
i2400m_tx_release(i2400m);
wmb(); /* see i2400m->updown's documentation */
dev_err(dev, "%s: cannot start the device: %d\n",
reason, result);
- result = i2400m->bus_reset(i2400m, I2400M_RT_BUS);
- if (result >= 0)
- result = -ENODEV;
+ result = -EUCLEAN;
}
out_unlock:
if (i2400m->reset_ctx) {
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);
/**
+ * 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
*
* @i2400m: device descriptor (bus-specific parts have been initialized)
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff