linux/drivers/net/wireless/libertas_tf/if_usb.c
Tejun Heo 5a0e3ad6af include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files.  percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.

percpu.h -> slab.h dependency is about to be removed.  Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability.  As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.

  http://userweb.kernel.org/~tj/misc/slabh-sweep.py

The script does the followings.

* Scan files for gfp and slab usages and update includes such that
  only the necessary includes are there.  ie. if only gfp is used,
  gfp.h, if slab is used, slab.h.

* When the script inserts a new include, it looks at the include
  blocks and try to put the new include such that its order conforms
  to its surrounding.  It's put in the include block which contains
  core kernel includes, in the same order that the rest are ordered -
  alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
  doesn't seem to be any matching order.

* If the script can't find a place to put a new include (mostly
  because the file doesn't have fitting include block), it prints out
  an error message indicating which .h file needs to be added to the
  file.

The conversion was done in the following steps.

1. The initial automatic conversion of all .c files updated slightly
   over 4000 files, deleting around 700 includes and adding ~480 gfp.h
   and ~3000 slab.h inclusions.  The script emitted errors for ~400
   files.

2. Each error was manually checked.  Some didn't need the inclusion,
   some needed manual addition while adding it to implementation .h or
   embedding .c file was more appropriate for others.  This step added
   inclusions to around 150 files.

3. The script was run again and the output was compared to the edits
   from #2 to make sure no file was left behind.

4. Several build tests were done and a couple of problems were fixed.
   e.g. lib/decompress_*.c used malloc/free() wrappers around slab
   APIs requiring slab.h to be added manually.

5. The script was run on all .h files but without automatically
   editing them as sprinkling gfp.h and slab.h inclusions around .h
   files could easily lead to inclusion dependency hell.  Most gfp.h
   inclusion directives were ignored as stuff from gfp.h was usually
   wildly available and often used in preprocessor macros.  Each
   slab.h inclusion directive was examined and added manually as
   necessary.

6. percpu.h was updated not to include slab.h.

7. Build test were done on the following configurations and failures
   were fixed.  CONFIG_GCOV_KERNEL was turned off for all tests (as my
   distributed build env didn't work with gcov compiles) and a few
   more options had to be turned off depending on archs to make things
   build (like ipr on powerpc/64 which failed due to missing writeq).

   * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
   * powerpc and powerpc64 SMP allmodconfig
   * sparc and sparc64 SMP allmodconfig
   * ia64 SMP allmodconfig
   * s390 SMP allmodconfig
   * alpha SMP allmodconfig
   * um on x86_64 SMP allmodconfig

8. percpu.h modifications were reverted so that it could be applied as
   a separate patch and serve as bisection point.

Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.

Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-30 22:02:32 +09:00

768 lines
18 KiB
C

/*
* Copyright (C) 2008, cozybit Inc.
* Copyright (C) 2003-2006, Marvell International Ltd.
*
* 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.
*/
#include <linux/delay.h>
#include <linux/moduleparam.h>
#include <linux/firmware.h>
#include <linux/netdevice.h>
#include <linux/slab.h>
#include <linux/usb.h>
#define DRV_NAME "lbtf_usb"
#include "libertas_tf.h"
#include "if_usb.h"
#define MESSAGE_HEADER_LEN 4
static char *lbtf_fw_name = "lbtf_usb.bin";
module_param_named(fw_name, lbtf_fw_name, charp, 0644);
MODULE_FIRMWARE("lbtf_usb.bin");
static struct usb_device_id if_usb_table[] = {
/* Enter the device signature inside */
{ USB_DEVICE(0x1286, 0x2001) },
{ USB_DEVICE(0x05a3, 0x8388) },
{} /* Terminating entry */
};
MODULE_DEVICE_TABLE(usb, if_usb_table);
static void if_usb_receive(struct urb *urb);
static void if_usb_receive_fwload(struct urb *urb);
static int if_usb_prog_firmware(struct if_usb_card *cardp);
static int if_usb_host_to_card(struct lbtf_private *priv, uint8_t type,
uint8_t *payload, uint16_t nb);
static int usb_tx_block(struct if_usb_card *cardp, uint8_t *payload,
uint16_t nb, u8 data);
static void if_usb_free(struct if_usb_card *cardp);
static int if_usb_submit_rx_urb(struct if_usb_card *cardp);
static int if_usb_reset_device(struct if_usb_card *cardp);
/**
* if_usb_wrike_bulk_callback - call back to handle URB status
*
* @param urb pointer to urb structure
*/
static void if_usb_write_bulk_callback(struct urb *urb)
{
if (urb->status != 0)
printk(KERN_INFO "libertastf: URB in failure status: %d\n",
urb->status);
}
/**
* if_usb_free - free tx/rx urb, skb and rx buffer
*
* @param cardp pointer if_usb_card
*/
static void if_usb_free(struct if_usb_card *cardp)
{
/* Unlink tx & rx urb */
usb_kill_urb(cardp->tx_urb);
usb_kill_urb(cardp->rx_urb);
usb_kill_urb(cardp->cmd_urb);
usb_free_urb(cardp->tx_urb);
cardp->tx_urb = NULL;
usb_free_urb(cardp->rx_urb);
cardp->rx_urb = NULL;
usb_free_urb(cardp->cmd_urb);
cardp->cmd_urb = NULL;
kfree(cardp->ep_out_buf);
cardp->ep_out_buf = NULL;
}
static void if_usb_setup_firmware(struct lbtf_private *priv)
{
struct if_usb_card *cardp = priv->card;
struct cmd_ds_set_boot2_ver b2_cmd;
if_usb_submit_rx_urb(cardp);
b2_cmd.hdr.size = cpu_to_le16(sizeof(b2_cmd));
b2_cmd.action = 0;
b2_cmd.version = cardp->boot2_version;
if (lbtf_cmd_with_response(priv, CMD_SET_BOOT2_VER, &b2_cmd))
printk(KERN_INFO "libertastf: setting boot2 version failed\n");
}
static void if_usb_fw_timeo(unsigned long priv)
{
struct if_usb_card *cardp = (void *)priv;
if (!cardp->fwdnldover)
/* Download timed out */
cardp->priv->surpriseremoved = 1;
wake_up(&cardp->fw_wq);
}
/**
* if_usb_probe - sets the configuration values
*
* @ifnum interface number
* @id pointer to usb_device_id
*
* Returns: 0 on success, error code on failure
*/
static int if_usb_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
struct usb_device *udev;
struct usb_host_interface *iface_desc;
struct usb_endpoint_descriptor *endpoint;
struct lbtf_private *priv;
struct if_usb_card *cardp;
int i;
udev = interface_to_usbdev(intf);
cardp = kzalloc(sizeof(struct if_usb_card), GFP_KERNEL);
if (!cardp)
goto error;
setup_timer(&cardp->fw_timeout, if_usb_fw_timeo, (unsigned long)cardp);
init_waitqueue_head(&cardp->fw_wq);
cardp->udev = udev;
iface_desc = intf->cur_altsetting;
for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
endpoint = &iface_desc->endpoint[i].desc;
if (usb_endpoint_is_bulk_in(endpoint)) {
cardp->ep_in_size =
le16_to_cpu(endpoint->wMaxPacketSize);
cardp->ep_in = usb_endpoint_num(endpoint);
} else if (usb_endpoint_is_bulk_out(endpoint)) {
cardp->ep_out_size =
le16_to_cpu(endpoint->wMaxPacketSize);
cardp->ep_out = usb_endpoint_num(endpoint);
}
}
if (!cardp->ep_out_size || !cardp->ep_in_size)
/* Endpoints not found */
goto dealloc;
cardp->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
if (!cardp->rx_urb)
goto dealloc;
cardp->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
if (!cardp->tx_urb)
goto dealloc;
cardp->cmd_urb = usb_alloc_urb(0, GFP_KERNEL);
if (!cardp->cmd_urb)
goto dealloc;
cardp->ep_out_buf = kmalloc(MRVDRV_ETH_TX_PACKET_BUFFER_SIZE,
GFP_KERNEL);
if (!cardp->ep_out_buf)
goto dealloc;
priv = lbtf_add_card(cardp, &udev->dev);
if (!priv)
goto dealloc;
cardp->priv = priv;
priv->hw_host_to_card = if_usb_host_to_card;
priv->hw_prog_firmware = if_usb_prog_firmware;
priv->hw_reset_device = if_usb_reset_device;
cardp->boot2_version = udev->descriptor.bcdDevice;
usb_get_dev(udev);
usb_set_intfdata(intf, cardp);
return 0;
dealloc:
if_usb_free(cardp);
error:
return -ENOMEM;
}
/**
* if_usb_disconnect - free resource and cleanup
*
* @intf USB interface structure
*/
static void if_usb_disconnect(struct usb_interface *intf)
{
struct if_usb_card *cardp = usb_get_intfdata(intf);
struct lbtf_private *priv = (struct lbtf_private *) cardp->priv;
if_usb_reset_device(cardp);
if (priv)
lbtf_remove_card(priv);
/* Unlink and free urb */
if_usb_free(cardp);
usb_set_intfdata(intf, NULL);
usb_put_dev(interface_to_usbdev(intf));
}
/**
* if_usb_send_fw_pkt - This function downloads the FW
*
* @priv pointer to struct lbtf_private
*
* Returns: 0
*/
static int if_usb_send_fw_pkt(struct if_usb_card *cardp)
{
struct fwdata *fwdata = cardp->ep_out_buf;
u8 *firmware = (u8 *) cardp->fw->data;
/* If we got a CRC failure on the last block, back
up and retry it */
if (!cardp->CRC_OK) {
cardp->totalbytes = cardp->fwlastblksent;
cardp->fwseqnum--;
}
/* struct fwdata (which we sent to the card) has an
extra __le32 field in between the header and the data,
which is not in the struct fwheader in the actual
firmware binary. Insert the seqnum in the middle... */
memcpy(&fwdata->hdr, &firmware[cardp->totalbytes],
sizeof(struct fwheader));
cardp->fwlastblksent = cardp->totalbytes;
cardp->totalbytes += sizeof(struct fwheader);
memcpy(fwdata->data, &firmware[cardp->totalbytes],
le32_to_cpu(fwdata->hdr.datalength));
fwdata->seqnum = cpu_to_le32(++cardp->fwseqnum);
cardp->totalbytes += le32_to_cpu(fwdata->hdr.datalength);
usb_tx_block(cardp, cardp->ep_out_buf, sizeof(struct fwdata) +
le32_to_cpu(fwdata->hdr.datalength), 0);
if (fwdata->hdr.dnldcmd == cpu_to_le32(FW_HAS_LAST_BLOCK))
/* Host has finished FW downloading
* Donwloading FW JUMP BLOCK
*/
cardp->fwfinalblk = 1;
return 0;
}
static int if_usb_reset_device(struct if_usb_card *cardp)
{
struct cmd_ds_802_11_reset *cmd = cardp->ep_out_buf + 4;
int ret;
*(__le32 *)cardp->ep_out_buf = cpu_to_le32(CMD_TYPE_REQUEST);
cmd->hdr.command = cpu_to_le16(CMD_802_11_RESET);
cmd->hdr.size = cpu_to_le16(sizeof(struct cmd_ds_802_11_reset));
cmd->hdr.result = cpu_to_le16(0);
cmd->hdr.seqnum = cpu_to_le16(0x5a5a);
cmd->action = cpu_to_le16(CMD_ACT_HALT);
usb_tx_block(cardp, cardp->ep_out_buf,
4 + sizeof(struct cmd_ds_802_11_reset), 0);
msleep(100);
ret = usb_reset_device(cardp->udev);
msleep(100);
return ret;
}
EXPORT_SYMBOL_GPL(if_usb_reset_device);
/**
* usb_tx_block - transfer data to the device
*
* @priv pointer to struct lbtf_private
* @payload pointer to payload data
* @nb data length
* @data non-zero for data, zero for commands
*
* Returns: 0 on success, nonzero otherwise.
*/
static int usb_tx_block(struct if_usb_card *cardp, uint8_t *payload,
uint16_t nb, u8 data)
{
struct urb *urb;
/* check if device is removed */
if (cardp->priv->surpriseremoved)
return -1;
if (data)
urb = cardp->tx_urb;
else
urb = cardp->cmd_urb;
usb_fill_bulk_urb(urb, cardp->udev,
usb_sndbulkpipe(cardp->udev,
cardp->ep_out),
payload, nb, if_usb_write_bulk_callback, cardp);
urb->transfer_flags |= URB_ZERO_PACKET;
if (usb_submit_urb(urb, GFP_ATOMIC))
return -1;
return 0;
}
static int __if_usb_submit_rx_urb(struct if_usb_card *cardp,
void (*callbackfn)(struct urb *urb))
{
struct sk_buff *skb;
skb = dev_alloc_skb(MRVDRV_ETH_RX_PACKET_BUFFER_SIZE);
if (!skb)
return -1;
cardp->rx_skb = skb;
/* Fill the receive configuration URB and initialise the Rx call back */
usb_fill_bulk_urb(cardp->rx_urb, cardp->udev,
usb_rcvbulkpipe(cardp->udev, cardp->ep_in),
skb_tail_pointer(skb),
MRVDRV_ETH_RX_PACKET_BUFFER_SIZE, callbackfn, cardp);
cardp->rx_urb->transfer_flags |= URB_ZERO_PACKET;
if (usb_submit_urb(cardp->rx_urb, GFP_ATOMIC)) {
kfree_skb(skb);
cardp->rx_skb = NULL;
return -1;
} else
return 0;
}
static int if_usb_submit_rx_urb_fwload(struct if_usb_card *cardp)
{
return __if_usb_submit_rx_urb(cardp, &if_usb_receive_fwload);
}
static int if_usb_submit_rx_urb(struct if_usb_card *cardp)
{
return __if_usb_submit_rx_urb(cardp, &if_usb_receive);
}
static void if_usb_receive_fwload(struct urb *urb)
{
struct if_usb_card *cardp = urb->context;
struct sk_buff *skb = cardp->rx_skb;
struct fwsyncheader *syncfwheader;
struct bootcmdresp bcmdresp;
if (urb->status) {
kfree_skb(skb);
return;
}
if (cardp->fwdnldover) {
__le32 *tmp = (__le32 *)(skb->data);
if (tmp[0] == cpu_to_le32(CMD_TYPE_INDICATION) &&
tmp[1] == cpu_to_le32(MACREG_INT_CODE_FIRMWARE_READY))
/* Firmware ready event received */
wake_up(&cardp->fw_wq);
else
if_usb_submit_rx_urb_fwload(cardp);
kfree_skb(skb);
return;
}
if (cardp->bootcmdresp <= 0) {
memcpy(&bcmdresp, skb->data, sizeof(bcmdresp));
if (le16_to_cpu(cardp->udev->descriptor.bcdDevice) < 0x3106) {
kfree_skb(skb);
if_usb_submit_rx_urb_fwload(cardp);
cardp->bootcmdresp = 1;
/* Received valid boot command response */
return;
}
if (bcmdresp.magic != cpu_to_le32(BOOT_CMD_MAGIC_NUMBER)) {
if (bcmdresp.magic == cpu_to_le32(CMD_TYPE_REQUEST) ||
bcmdresp.magic == cpu_to_le32(CMD_TYPE_DATA) ||
bcmdresp.magic == cpu_to_le32(CMD_TYPE_INDICATION))
cardp->bootcmdresp = -1;
} else if (bcmdresp.cmd == BOOT_CMD_FW_BY_USB &&
bcmdresp.result == BOOT_CMD_RESP_OK)
cardp->bootcmdresp = 1;
kfree_skb(skb);
if_usb_submit_rx_urb_fwload(cardp);
return;
}
syncfwheader = kmalloc(sizeof(struct fwsyncheader), GFP_ATOMIC);
if (!syncfwheader) {
kfree_skb(skb);
return;
}
memcpy(syncfwheader, skb->data, sizeof(struct fwsyncheader));
if (!syncfwheader->cmd)
cardp->CRC_OK = 1;
else
cardp->CRC_OK = 0;
kfree_skb(skb);
/* reschedule timer for 200ms hence */
mod_timer(&cardp->fw_timeout, jiffies + (HZ/5));
if (cardp->fwfinalblk) {
cardp->fwdnldover = 1;
goto exit;
}
if_usb_send_fw_pkt(cardp);
exit:
if_usb_submit_rx_urb_fwload(cardp);
kfree(syncfwheader);
return;
}
#define MRVDRV_MIN_PKT_LEN 30
static inline void process_cmdtypedata(int recvlength, struct sk_buff *skb,
struct if_usb_card *cardp,
struct lbtf_private *priv)
{
if (recvlength > MRVDRV_ETH_RX_PACKET_BUFFER_SIZE + MESSAGE_HEADER_LEN
|| recvlength < MRVDRV_MIN_PKT_LEN) {
kfree_skb(skb);
return;
}
skb_put(skb, recvlength);
skb_pull(skb, MESSAGE_HEADER_LEN);
lbtf_rx(priv, skb);
}
static inline void process_cmdrequest(int recvlength, uint8_t *recvbuff,
struct sk_buff *skb,
struct if_usb_card *cardp,
struct lbtf_private *priv)
{
if (recvlength > LBS_CMD_BUFFER_SIZE) {
kfree_skb(skb);
return;
}
BUG_ON(!in_interrupt());
spin_lock(&priv->driver_lock);
memcpy(priv->cmd_resp_buff, recvbuff + MESSAGE_HEADER_LEN,
recvlength - MESSAGE_HEADER_LEN);
kfree_skb(skb);
lbtf_cmd_response_rx(priv);
spin_unlock(&priv->driver_lock);
}
/**
* if_usb_receive - read data received from the device.
*
* @urb pointer to struct urb
*/
static void if_usb_receive(struct urb *urb)
{
struct if_usb_card *cardp = urb->context;
struct sk_buff *skb = cardp->rx_skb;
struct lbtf_private *priv = cardp->priv;
int recvlength = urb->actual_length;
uint8_t *recvbuff = NULL;
uint32_t recvtype = 0;
__le32 *pkt = (__le32 *) skb->data;
if (recvlength) {
if (urb->status) {
kfree_skb(skb);
goto setup_for_next;
}
recvbuff = skb->data;
recvtype = le32_to_cpu(pkt[0]);
} else if (urb->status) {
kfree_skb(skb);
return;
}
switch (recvtype) {
case CMD_TYPE_DATA:
process_cmdtypedata(recvlength, skb, cardp, priv);
break;
case CMD_TYPE_REQUEST:
process_cmdrequest(recvlength, recvbuff, skb, cardp, priv);
break;
case CMD_TYPE_INDICATION:
{
/* Event cause handling */
u32 event_cause = le32_to_cpu(pkt[1]);
/* Icky undocumented magic special case */
if (event_cause & 0xffff0000) {
u16 tmp;
u8 retrycnt;
u8 failure;
tmp = event_cause >> 16;
retrycnt = tmp & 0x00ff;
failure = (tmp & 0xff00) >> 8;
lbtf_send_tx_feedback(priv, retrycnt, failure);
} else if (event_cause == LBTF_EVENT_BCN_SENT)
lbtf_bcn_sent(priv);
else
printk(KERN_DEBUG
"Unsupported notification %d received\n",
event_cause);
kfree_skb(skb);
break;
}
default:
printk(KERN_DEBUG "libertastf: unknown command type 0x%X\n",
recvtype);
kfree_skb(skb);
break;
}
setup_for_next:
if_usb_submit_rx_urb(cardp);
}
/**
* if_usb_host_to_card - Download data to the device
*
* @priv pointer to struct lbtf_private structure
* @type type of data
* @buf pointer to data buffer
* @len number of bytes
*
* Returns: 0 on success, nonzero otherwise
*/
static int if_usb_host_to_card(struct lbtf_private *priv, uint8_t type,
uint8_t *payload, uint16_t nb)
{
struct if_usb_card *cardp = priv->card;
u8 data = 0;
if (type == MVMS_CMD) {
*(__le32 *)cardp->ep_out_buf = cpu_to_le32(CMD_TYPE_REQUEST);
} else {
*(__le32 *)cardp->ep_out_buf = cpu_to_le32(CMD_TYPE_DATA);
data = 1;
}
memcpy((cardp->ep_out_buf + MESSAGE_HEADER_LEN), payload, nb);
return usb_tx_block(cardp, cardp->ep_out_buf, nb + MESSAGE_HEADER_LEN,
data);
}
/**
* if_usb_issue_boot_command - Issue boot command to Boot2.
*
* @ivalue 1 boots from FW by USB-Download, 2 boots from FW in EEPROM.
*
* Returns: 0
*/
static int if_usb_issue_boot_command(struct if_usb_card *cardp, int ivalue)
{
struct bootcmd *bootcmd = cardp->ep_out_buf;
/* Prepare command */
bootcmd->magic = cpu_to_le32(BOOT_CMD_MAGIC_NUMBER);
bootcmd->cmd = ivalue;
memset(bootcmd->pad, 0, sizeof(bootcmd->pad));
/* Issue command */
usb_tx_block(cardp, cardp->ep_out_buf, sizeof(*bootcmd), 0);
return 0;
}
/**
* check_fwfile_format - Check the validity of Boot2/FW image.
*
* @data pointer to image
* @totlen image length
*
* Returns: 0 if the image is valid, nonzero otherwise.
*/
static int check_fwfile_format(const u8 *data, u32 totlen)
{
u32 bincmd, exit;
u32 blksize, offset, len;
int ret;
ret = 1;
exit = len = 0;
do {
struct fwheader *fwh = (void *) data;
bincmd = le32_to_cpu(fwh->dnldcmd);
blksize = le32_to_cpu(fwh->datalength);
switch (bincmd) {
case FW_HAS_DATA_TO_RECV:
offset = sizeof(struct fwheader) + blksize;
data += offset;
len += offset;
if (len >= totlen)
exit = 1;
break;
case FW_HAS_LAST_BLOCK:
exit = 1;
ret = 0;
break;
default:
exit = 1;
break;
}
} while (!exit);
if (ret)
printk(KERN_INFO
"libertastf: firmware file format check failed\n");
return ret;
}
static int if_usb_prog_firmware(struct if_usb_card *cardp)
{
int i = 0;
static int reset_count = 10;
int ret = 0;
ret = request_firmware(&cardp->fw, lbtf_fw_name, &cardp->udev->dev);
if (ret < 0) {
printk(KERN_INFO "libertastf: firmware %s not found\n",
lbtf_fw_name);
goto done;
}
if (check_fwfile_format(cardp->fw->data, cardp->fw->size))
goto release_fw;
restart:
if (if_usb_submit_rx_urb_fwload(cardp) < 0) {
ret = -1;
goto release_fw;
}
cardp->bootcmdresp = 0;
do {
int j = 0;
i++;
/* Issue Boot command = 1, Boot from Download-FW */
if_usb_issue_boot_command(cardp, BOOT_CMD_FW_BY_USB);
/* wait for command response */
do {
j++;
msleep_interruptible(100);
} while (cardp->bootcmdresp == 0 && j < 10);
} while (cardp->bootcmdresp == 0 && i < 5);
if (cardp->bootcmdresp <= 0) {
if (--reset_count >= 0) {
if_usb_reset_device(cardp);
goto restart;
}
return -1;
}
i = 0;
cardp->totalbytes = 0;
cardp->fwlastblksent = 0;
cardp->CRC_OK = 1;
cardp->fwdnldover = 0;
cardp->fwseqnum = -1;
cardp->totalbytes = 0;
cardp->fwfinalblk = 0;
/* Send the first firmware packet... */
if_usb_send_fw_pkt(cardp);
/* ... and wait for the process to complete */
wait_event_interruptible(cardp->fw_wq, cardp->priv->surpriseremoved ||
cardp->fwdnldover);
del_timer_sync(&cardp->fw_timeout);
usb_kill_urb(cardp->rx_urb);
if (!cardp->fwdnldover) {
printk(KERN_INFO "libertastf: failed to load fw,"
" resetting device!\n");
if (--reset_count >= 0) {
if_usb_reset_device(cardp);
goto restart;
}
printk(KERN_INFO "libertastf: fw download failure\n");
ret = -1;
goto release_fw;
}
cardp->priv->fw_ready = 1;
release_fw:
release_firmware(cardp->fw);
cardp->fw = NULL;
if_usb_setup_firmware(cardp->priv);
done:
return ret;
}
EXPORT_SYMBOL_GPL(if_usb_prog_firmware);
#define if_usb_suspend NULL
#define if_usb_resume NULL
static struct usb_driver if_usb_driver = {
.name = DRV_NAME,
.probe = if_usb_probe,
.disconnect = if_usb_disconnect,
.id_table = if_usb_table,
.suspend = if_usb_suspend,
.resume = if_usb_resume,
};
static int __init if_usb_init_module(void)
{
int ret = 0;
ret = usb_register(&if_usb_driver);
return ret;
}
static void __exit if_usb_exit_module(void)
{
usb_deregister(&if_usb_driver);
}
module_init(if_usb_init_module);
module_exit(if_usb_exit_module);
MODULE_DESCRIPTION("8388 USB WLAN Thinfirm Driver");
MODULE_AUTHOR("Cozybit Inc.");
MODULE_LICENSE("GPL");