- 根目录:
- drivers
- net
- wireless
- brcm80211
- brcmfmac
- usb.c
/*
* Copyright (c) 2011 Broadcom Corporation
*
* 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/kernel.h>
#include <linux/module.h>
#include <linux/firmware.h>
#include <linux/usb.h>
#include <linux/vmalloc.h>
#include <brcmu_utils.h>
#include <brcmu_wifi.h>
#include <dhd_bus.h>
#include <dhd_dbg.h>
#include "usb_rdl.h"
#include "usb.h"
#define IOCTL_RESP_TIMEOUT 2000
#define BRCMF_USB_RESET_GETVER_SPINWAIT 100 /* in unit of ms */
#define BRCMF_USB_RESET_GETVER_LOOP_CNT 10
#define BRCMF_POSTBOOT_ID 0xA123 /* ID to detect if dongle
has boot up */
#define BRCMF_USB_NRXQ 50
#define BRCMF_USB_NTXQ 50
#define CONFIGDESC(usb) (&((usb)->actconfig)->desc)
#define IFPTR(usb, idx) ((usb)->actconfig->interface[(idx)])
#define IFALTS(usb, idx) (IFPTR((usb), (idx))->altsetting[0])
#define IFDESC(usb, idx) IFALTS((usb), (idx)).desc
#define IFEPDESC(usb, idx, ep) (IFALTS((usb), (idx)).endpoint[(ep)]).desc
#define CONTROL_IF 0
#define BULK_IF 0
#define BRCMF_USB_CBCTL_WRITE 0
#define BRCMF_USB_CBCTL_READ 1
#define BRCMF_USB_MAX_PKT_SIZE 1600
#define BRCMF_USB_43143_FW_NAME "brcm/brcmfmac43143.bin"
#define BRCMF_USB_43236_FW_NAME "brcm/brcmfmac43236b.bin"
#define BRCMF_USB_43242_FW_NAME "brcm/brcmfmac43242a.bin"
struct brcmf_usb_image {
struct list_head list;
s8 *fwname;
u8 *image;
int image_len;
};
static struct list_head fw_image_list;
struct intr_transfer_buf {
u32 notification;
u32 reserved;
};
struct brcmf_usbdev_info {
struct brcmf_usbdev bus_pub; /* MUST BE FIRST */
spinlock_t qlock;
struct list_head rx_freeq;
struct list_head rx_postq;
struct list_head tx_freeq;
struct list_head tx_postq;
uint rx_pipe, tx_pipe, intr_pipe, rx_pipe2;
int rx_low_watermark;
int tx_low_watermark;
int tx_high_watermark;
int tx_freecount;
bool tx_flowblock;
struct brcmf_usbreq *tx_reqs;
struct brcmf_usbreq *rx_reqs;
u8 *image; /* buffer for combine fw and nvram */
int image_len;
struct usb_device *usbdev;
struct device *dev;
int ctl_in_pipe, ctl_out_pipe;
struct urb *ctl_urb; /* URB for control endpoint */
struct usb_ctrlrequest ctl_write;
struct usb_ctrlrequest ctl_read;
u32 ctl_urb_actual_length;
int ctl_urb_status;
int ctl_completed;
wait_queue_head_t ioctl_resp_wait;
ulong ctl_op;
struct urb *bulk_urb; /* used for FW download */
struct urb *intr_urb; /* URB for interrupt endpoint */
int intr_size; /* Size of interrupt message */
int interval; /* Interrupt polling interval */
struct intr_transfer_buf intr; /* Data buffer for interrupt endpoint */
};
static void brcmf_usb_rx_refill(struct brcmf_usbdev_info *devinfo,
struct brcmf_usbreq *req);
static struct brcmf_usbdev *brcmf_usb_get_buspub(struct device *dev)
{
struct brcmf_bus *bus_if = dev_get_drvdata(dev);
return bus_if->bus_priv.usb;
}
static struct brcmf_usbdev_info *brcmf_usb_get_businfo(struct device *dev)
{
return brcmf_usb_get_buspub(dev)->devinfo;
}
static int brcmf_usb_ioctl_resp_wait(struct brcmf_usbdev_info *devinfo)
{
return wait_event_timeout(devinfo->ioctl_resp_wait,
devinfo->ctl_completed,
msecs_to_jiffies(IOCTL_RESP_TIMEOUT));
}
static void brcmf_usb_ioctl_resp_wake(struct brcmf_usbdev_info *devinfo)
{
if (waitqueue_active(&devinfo->ioctl_resp_wait))
wake_up(&devinfo->ioctl_resp_wait);
}
static void
brcmf_usb_ctl_complete(struct brcmf_usbdev_info *devinfo, int type, int status)
{
brcmf_dbg(USB, "Enter, status=%d\n", status);
if (unlikely(devinfo == NULL))
return;
if (type == BRCMF_USB_CBCTL_READ) {
if (status == 0)
devinfo->bus_pub.stats.rx_ctlpkts++;
else
devinfo->bus_pub.stats.rx_ctlerrs++;
} else if (type == BRCMF_USB_CBCTL_WRITE) {
if (status == 0)
devinfo->bus_pub.stats.tx_ctlpkts++;
else
devinfo->bus_pub.stats.tx_ctlerrs++;
}
devinfo->ctl_urb_status = status;
devinfo->ctl_completed = true;
brcmf_usb_ioctl_resp_wake(devinfo);
}
static void
brcmf_usb_ctlread_complete(struct urb *urb)
{
struct brcmf_usbdev_info *devinfo =
(struct brcmf_usbdev_info *)urb->context;
brcmf_dbg(USB, "Enter\n");
devinfo->ctl_urb_actual_length = urb->actual_length;
brcmf_usb_ctl_complete(devinfo, BRCMF_USB_CBCTL_READ,
urb->status);
}
static void
brcmf_usb_ctlwrite_complete(struct urb *urb)
{
struct brcmf_usbdev_info *devinfo =
(struct brcmf_usbdev_info *)urb->context;
brcmf_dbg(USB, "Enter\n");
brcmf_usb_ctl_complete(devinfo, BRCMF_USB_CBCTL_WRITE,
urb->status);
}
static int
brcmf_usb_send_ctl(struct brcmf_usbdev_info *devinfo, u8 *buf, int len)
{
int ret;
u16 size;
brcmf_dbg(USB, "Enter\n");
if (devinfo == NULL || buf == NULL ||
len == 0 || devinfo->ctl_urb == NULL)
return -EINVAL;
size = len;
devinfo->ctl_write.wLength = cpu_to_le16p(&size);
devinfo->ctl_urb->transfer_buffer_length = size;
devinfo->ctl_urb_status = 0;
devinfo->ctl_urb_actual_length = 0;
usb_fill_control_urb(devinfo->ctl_urb,
devinfo->usbdev,
devinfo->ctl_out_pipe,
(unsigned char *) &devinfo->ctl_write,
buf, size,
(usb_complete_t)brcmf_usb_ctlwrite_complete,
devinfo);
ret = usb_submit_urb(devinfo->ctl_urb, GFP_ATOMIC);
if (ret < 0)
brcmf_err("usb_submit_urb failed %d\n", ret);
return ret;
}
static int
brcmf_usb_recv_ctl(struct brcmf_usbdev_info *devinfo, u8 *buf, int len)
{
int ret;
u16 size;
brcmf_dbg(USB, "Enter\n");
if ((devinfo == NULL) || (buf == NULL) || (len == 0)
|| (devinfo->ctl_urb == NULL))
return -EINVAL;
size = len;
devinfo->ctl_read.wLength = cpu_to_le16p(&size);
devinfo->ctl_urb->transfer_buffer_length = size;
devinfo->ctl_read.bRequestType = USB_DIR_IN
| USB_TYPE_CLASS | USB_RECIP_INTERFACE;
devinfo->ctl_read.bRequest = 1;
usb_fill_control_urb(devinfo->ctl_urb,
devinfo->usbdev,
devinfo->ctl_in_pipe,
(unsigned char *) &devinfo->ctl_read,
buf, size,
(usb_complete_t)brcmf_usb_ctlread_complete,
devinfo);
ret = usb_submit_urb(devinfo->ctl_urb, GFP_ATOMIC);
if (ret < 0)
brcmf_err("usb_submit_urb failed %d\n", ret);
return ret;
}
static int brcmf_usb_tx_ctlpkt(struct device *dev, u8 *buf, u32 len)
{
int err = 0;
int timeout = 0;
struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
brcmf_dbg(USB, "Enter\n");
if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP)
return -EIO;
if (test_and_set_bit(0, &devinfo->ctl_op))
return -EIO;
devinfo->ctl_completed = false;
err = brcmf_usb_send_ctl(devinfo, buf, len);
if (err) {
brcmf_err("fail %d bytes: %d\n", err, len);
clear_bit(0, &devinfo->ctl_op);
return err;
}
timeout = brcmf_usb_ioctl_resp_wait(devinfo);
clear_bit(0, &devinfo->ctl_op);
if (!timeout) {
brcmf_err("Txctl wait timed out\n");
err = -EIO;
}
return err;
}
static int brcmf_usb_rx_ctlpkt(struct device *dev, u8 *buf, u32 len)
{
int err = 0;
int timeout = 0;
struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
brcmf_dbg(USB, "Enter\n");
if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP)
return -EIO;
if (test_and_set_bit(0, &devinfo->ctl_op))
return -EIO;
devinfo->ctl_completed = false;
err = brcmf_usb_recv_ctl(devinfo, buf, len);
if (err) {
brcmf_err("fail %d bytes: %d\n", err, len);
clear_bit(0, &devinfo->ctl_op);
return err;
}
timeout = brcmf_usb_ioctl_resp_wait(devinfo);
err = devinfo->ctl_urb_status;
clear_bit(0, &devinfo->ctl_op);
if (!timeout) {
brcmf_err("rxctl wait timed out\n");
err = -EIO;
}
if (!err)
return devinfo->ctl_urb_actual_length;
else
return err;
}
static struct brcmf_usbreq *brcmf_usb_deq(struct brcmf_usbdev_info *devinfo,
struct list_head *q, int *counter)
{
unsigned long flags;
struct brcmf_usbreq *req;
spin_lock_irqsave(&devinfo->qlock, flags);
if (list_empty(q)) {
spin_unlock_irqrestore(&devinfo->qlock, flags);
return NULL;
}
req = list_entry(q->next, struct brcmf_usbreq, list);
list_del_init(q->next);
if (counter)
(*counter)--;
spin_unlock_irqrestore(&devinfo->qlock, flags);
return req;
}
static void brcmf_usb_enq(struct brcmf_usbdev_info *devinfo,
struct list_head *q, struct brcmf_usbreq *req,
int *counter)
{
unsigned long flags;
spin_lock_irqsave(&devinfo->qlock, flags);
list_add_tail(&req->list, q);
if (counter)
(*counter)++;
spin_unlock_irqrestore(&devinfo->qlock, flags);
}
static struct brcmf_usbreq *
brcmf_usbdev_qinit(struct list_head *q, int qsize)
{
int i;
struct brcmf_usbreq *req, *reqs;
reqs = kcalloc(qsize, sizeof(struct brcmf_usbreq), GFP_ATOMIC);
if (reqs == NULL)
return NULL;
req = reqs;
for (i = 0; i < qsize; i++) {
req->urb = usb_alloc_urb(0, GFP_ATOMIC);
if (!req->urb)
goto fail;
INIT_LIST_HEAD(&req->list);
list_add_tail(&req->list, q);
req++;
}
return reqs;
fail:
brcmf_err("fail!\n");
while (!list_empty(q)) {
req = list_entry(q->next, struct brcmf_usbreq, list);
if (req && req->urb)
usb_free_urb(req->urb);
list_del(q->next);
}
return NULL;
}
static void brcmf_usb_free_q(struct list_head *q, bool pending)
{
struct brcmf_usbreq *req, *next;
int i = 0;
list_for_each_entry_safe(req, next, q, list) {
if (!req->urb) {
brcmf_err("bad req\n");
break;
}
i++;
if (pending) {
usb_kill_urb(req->urb);
} else {
usb_free_urb(req->urb);
list_del_init(&req->list);
}
}
}
static void brcmf_usb_del_fromq(struct brcmf_usbdev_info *devinfo,
struct brcmf_usbreq *req)
{
unsigned long flags;
spin_lock_irqsave(&devinfo->qlock, flags);
list_del_init(&req->list);
spin_unlock_irqrestore(&devinfo->qlock, flags);
}
static void brcmf_usb_tx_complete(struct urb *urb)
{
struct brcmf_usbreq *req = (struct brcmf_usbreq *)urb->context;
struct brcmf_usbdev_info *devinfo = req->devinfo;
brcmf_dbg(USB, "Enter, urb->status=%d, skb=%p\n", urb->status,
req->skb);
brcmf_usb_del_fromq(devinfo, req);
brcmf_txcomplete(devinfo->dev, req->skb, urb->status == 0);
req->skb = NULL;
brcmf_usb_enq(devinfo, &devinfo->tx_freeq, req, &devinfo->tx_freecount);
if (devinfo->tx_freecount > devinfo->tx_high_watermark &&
devinfo->tx_flowblock) {
brcmf_txflowblock(devinfo->dev, false);
devinfo->tx_flowblock = false;
}
}
static void brcmf_usb_rx_complete(struct urb *urb)
{
struct brcmf_usbreq *req = (struct brcmf_usbreq *)urb->context;
struct brcmf_usbdev_info *devinfo = req->devinfo;
struct sk_buff *skb;
struct sk_buff_head skbq;
brcmf_dbg(USB, "Enter, urb->status=%d\n", urb->status);
brcmf_usb_del_fromq(devinfo, req);
skb = req->skb;
req->skb = NULL;
/* zero lenght packets indicate usb "failure". Do not refill */
if (urb->status != 0 || !urb->actual_length) {
brcmu_pkt_buf_free_skb(skb);
brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL);
return;
}
if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_UP) {
skb_queue_head_init(&skbq);
skb_queue_tail(&skbq, skb);
skb_put(skb, urb->actual_length);
brcmf_rx_frames(devinfo->dev, &skbq);
brcmf_usb_rx_refill(devinfo, req);
} else {
brcmu_pkt_buf_free_skb(skb);
brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL);
}
return;
}
static void brcmf_usb_rx_refill(struct brcmf_usbdev_info *devinfo,
struct brcmf_usbreq *req)
{
struct sk_buff *skb;
int ret;
if (!req || !devinfo)
return;
skb = dev_alloc_skb(devinfo->bus_pub.bus_mtu);
if (!skb) {
brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL);
return;
}
req->skb = skb;
usb_fill_bulk_urb(req->urb, devinfo->usbdev, devinfo->rx_pipe,
skb->data, skb_tailroom(skb), brcmf_usb_rx_complete,
req);
req->devinfo = devinfo;
brcmf_usb_enq(devinfo, &devinfo->rx_postq, req, NULL);
ret = usb_submit_urb(req->urb, GFP_ATOMIC);
if (ret) {
brcmf_usb_del_fromq(devinfo, req);
brcmu_pkt_buf_free_skb(req->skb);
req->skb = NULL;
brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL);
}
return;
}
static void brcmf_usb_rx_fill_all(struct brcmf_usbdev_info *devinfo)
{
struct brcmf_usbreq *req;
if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP) {
brcmf_err("bus is not up=%d\n", devinfo->bus_pub.state);
return;
}
while ((req = brcmf_usb_deq(devinfo, &devinfo->rx_freeq, NULL)) != NULL)
brcmf_usb_rx_refill(devinfo, req);
}
static void
brcmf_usb_state_change(struct brcmf_usbdev_info *devinfo, int state)
{
struct brcmf_bus *bcmf_bus = devinfo->bus_pub.bus;
int old_state;
brcmf_dbg(USB, "Enter, current state=%d, new state=%d\n",
devinfo->bus_pub.state, state);
if (devinfo->bus_pub.state == state)
return;
old_state = devinfo->bus_pub.state;
devinfo->bus_pub.state = state;
/* update state of upper layer */
if (state == BRCMFMAC_USB_STATE_DOWN) {
brcmf_dbg(USB, "DBUS is down\n");
bcmf_bus->state = BRCMF_BUS_DOWN;
} else if (state == BRCMFMAC_USB_STATE_UP) {
brcmf_dbg(USB, "DBUS is up\n");
bcmf_bus->state = BRCMF_BUS_DATA;
} else {
brcmf_dbg(USB, "DBUS current state=%d\n", state);
}
}
static void
brcmf_usb_intr_complete(struct urb *urb)
{
struct brcmf_usbdev_info *devinfo =
(struct brcmf_usbdev_info *)urb->context;
int err;
brcmf_dbg(USB, "Enter, urb->status=%d\n", urb->status);
if (devinfo == NULL)
return;
if (unlikely(urb->status)) {
if (urb->status == -ENOENT ||
urb->status == -ESHUTDOWN ||
urb->status == -ENODEV) {
brcmf_usb_state_change(devinfo,
BRCMFMAC_USB_STATE_DOWN);
}
}
if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_DOWN) {
brcmf_err("intr cb when DBUS down, ignoring\n");
return;
}
if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_UP) {
err = usb_submit_urb(devinfo->intr_urb, GFP_ATOMIC);
if (err)
brcmf_err("usb_submit_urb, err=%d\n", err);
}
}
static int brcmf_usb_tx(struct device *dev, struct sk_buff *skb)
{
struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
struct brcmf_usbreq *req;
int ret;
brcmf_dbg(USB, "Enter, skb=%p\n", skb);
if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP) {
ret = -EIO;
goto fail;
}
req = brcmf_usb_deq(devinfo, &devinfo->tx_freeq,
&devinfo->tx_freecount);
if (!req) {
brcmf_err("no req to send\n");
ret = -ENOMEM;
goto fail;
}
req->skb = skb;
req->devinfo = devinfo;
usb_fill_bulk_urb(req->urb, devinfo->usbdev, devinfo->tx_pipe,
skb->data, skb->len, brcmf_usb_tx_complete, req);
req->urb->transfer_flags |= URB_ZERO_PACKET;
brcmf_usb_enq(devinfo, &devinfo->tx_postq, req, NULL);
ret = usb_submit_urb(req->urb, GFP_ATOMIC);
if (ret) {
brcmf_err("brcmf_usb_tx usb_submit_urb FAILED\n");
brcmf_usb_del_fromq(devinfo, req);
req->skb = NULL;
brcmf_usb_enq(devinfo, &devinfo->tx_freeq, req,
&devinfo->tx_freecount);
goto fail;
}
if (devinfo->tx_freecount < devinfo->tx_low_watermark &&
!devinfo->tx_flowblock) {
brcmf_txflowblock(dev, true);
devinfo->tx_flowblock = true;
}
return 0;
fail:
brcmf_txcomplete(dev, skb, false);
return ret;
}
static int brcmf_usb_up(struct device *dev)
{
struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
u16 ifnum;
int ret;
brcmf_dbg(USB, "Enter\n");
if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_UP)
return 0;
/* Success, indicate devinfo is fully up */
brcmf_usb_state_change(devinfo, BRCMFMAC_USB_STATE_UP);
if (devinfo->intr_urb) {
usb_fill_int_urb(devinfo->intr_urb, devinfo->usbdev,
devinfo->intr_pipe,
&devinfo->intr,
devinfo->intr_size,
(usb_complete_t)brcmf_usb_intr_complete,
devinfo,
devinfo->interval);
ret = usb_submit_urb(devinfo->intr_urb, GFP_ATOMIC);
if (ret) {
brcmf_err("USB_SUBMIT_URB failed with status %d\n",
ret);
return -EINVAL;
}
}
if (devinfo->ctl_urb) {
devinfo->ctl_in_pipe = usb_rcvctrlpipe(devinfo->usbdev, 0);
devinfo->ctl_out_pipe = usb_sndctrlpipe(devinfo->usbdev, 0);
ifnum = IFDESC(devinfo->usbdev, CONTROL_IF).bInterfaceNumber;
/* CTL Write */
devinfo->ctl_write.bRequestType =
USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE;
devinfo->ctl_write.bRequest = 0;
devinfo->ctl_write.wValue = cpu_to_le16(0);
devinfo->ctl_write.wIndex = cpu_to_le16p(&ifnum);
/* CTL Read */
devinfo->ctl_read.bRequestType =
USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE;
devinfo->ctl_read.bRequest = 1;
devinfo->ctl_read.wValue = cpu_to_le16(0);
devinfo->ctl_read.wIndex = cpu_to_le16p(&ifnum);
}
brcmf_usb_rx_fill_all(devinfo);
return 0;
}
static void brcmf_usb_down(struct device *dev)
{
struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
brcmf_dbg(USB, "Enter\n");
if (devinfo == NULL)
return;
if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_DOWN)
return;
brcmf_usb_state_change(devinfo, BRCMFMAC_USB_STATE_DOWN);
if (devinfo->intr_urb)
usb_kill_urb(devinfo->intr_urb);
if (devinfo->ctl_urb)
usb_kill_urb(devinfo->ctl_urb);
if (devinfo->bulk_urb)
usb_kill_urb(devinfo->bulk_urb);
brcmf_usb_free_q(&devinfo->tx_postq, true);
brcmf_usb_free_q(&devinfo->rx_postq, true);
}
static void
brcmf_usb_sync_complete(struct urb *urb)
{
struct brcmf_usbdev_info *devinfo =
(struct brcmf_usbdev_info *)urb->context;
devinfo->ctl_completed = true;
brcmf_usb_ioctl_resp_wake(devinfo);
}
static bool brcmf_usb_dl_cmd(struct brcmf_usbdev_info *devinfo, u8 cmd,
void *buffer, int buflen)
{
int ret = 0;
char *tmpbuf;
u16 size;
if ((!devinfo) || (devinfo->ctl_urb == NULL))
return false;
tmpbuf = kmalloc(buflen, GFP_ATOMIC);
if (!tmpbuf)
return false;
size = buflen;
devinfo->ctl_urb->transfer_buffer_length = size;
devinfo->ctl_read.wLength = cpu_to_le16p(&size);
devinfo->ctl_read.bRequestType = USB_DIR_IN | USB_TYPE_VENDOR |
USB_RECIP_INTERFACE;
devinfo->ctl_read.bRequest = cmd;
usb_fill_control_urb(devinfo->ctl_urb,
devinfo->usbdev,
usb_rcvctrlpipe(devinfo->usbdev, 0),
(unsigned char *) &devinfo->ctl_read,
(void *) tmpbuf, size,
(usb_complete_t)brcmf_usb_sync_complete, devinfo);
devinfo->ctl_completed = false;
ret = usb_submit_urb(devinfo->ctl_urb, GFP_ATOMIC);
if (ret < 0) {
brcmf_err("usb_submit_urb failed %d\n", ret);
kfree(tmpbuf);
return false;
}
ret = brcmf_usb_ioctl_resp_wait(devinfo);
memcpy(buffer, tmpbuf, buflen);
kfree(tmpbuf);
return ret;
}
static bool
brcmf_usb_dlneeded(struct brcmf_usbdev_info *devinfo)
{
struct bootrom_id_le id;
u32 chipid, chiprev;
brcmf_dbg(USB, "Enter\n");
if (devinfo == NULL)
return false;
/* Check if firmware downloaded already by querying runtime ID */
id.chip = cpu_to_le32(0xDEAD);
brcmf_usb_dl_cmd(devinfo, DL_GETVER, &id, sizeof(id));
chipid = le32_to_cpu(id.chip);
chiprev = le32_to_cpu(id.chiprev);
if ((chipid & 0x4300) == 0x4300)
brcmf_dbg(USB, "chip %x rev 0x%x\n", chipid, chiprev);
else
brcmf_dbg(USB, "chip %d rev 0x%x\n", chipid, chiprev);
if (chipid == BRCMF_POSTBOOT_ID) {
brcmf_dbg(USB, "firmware already downloaded\n");
brcmf_usb_dl_cmd(devinfo, DL_RESETCFG, &id, sizeof(id));
return false;
} else {
devinfo->bus_pub.devid = chipid;
devinfo->bus_pub.chiprev = chiprev;
}
return true;
}
static int
brcmf_usb_resetcfg(struct brcmf_usbdev_info *devinfo)
{
struct bootrom_id_le id;
u32 loop_cnt;
brcmf_dbg(USB, "Enter\n");
loop_cnt = 0;
do {
mdelay(BRCMF_USB_RESET_GETVER_SPINWAIT);
loop_cnt++;
id.chip = cpu_to_le32(0xDEAD); /* Get the ID */
brcmf_usb_dl_cmd(devinfo, DL_GETVER, &id, sizeof(id));
if (id.chip == cpu_to_le32(BRCMF_POSTBOOT_ID))
break;
} while (loop_cnt < BRCMF_USB_RESET_GETVER_LOOP_CNT);
if (id.chip == cpu_to_le32(BRCMF_POSTBOOT_ID)) {
brcmf_dbg(USB, "postboot chip 0x%x/rev 0x%x\n",
le32_to_cpu(id.chip), le32_to_cpu(id.chiprev));
brcmf_usb_dl_cmd(devinfo, DL_RESETCFG, &id, sizeof(id));
return 0;
} else {
brcmf_err("Cannot talk to Dongle. Firmware is not UP, %d ms\n",
BRCMF_USB_RESET_GETVER_SPINWAIT * loop_cnt);
return -EINVAL;
}
}
static int
brcmf_usb_dl_send_bulk(struct brcmf_usbdev_info *devinfo, void *buffer, int len)
{
int ret;
if ((devinfo == NULL) || (devinfo->bulk_urb == NULL))
return -EINVAL;
/* Prepare the URB */
usb_fill_bulk_urb(devinfo->bulk_urb, devinfo->usbdev,
devinfo->tx_pipe, buffer, len,
(usb_complete_t)brcmf_usb_sync_complete, devinfo);
devinfo->bulk_urb->transfer_flags |= URB_ZERO_PACKET;
devinfo->ctl_completed = false;
ret = usb_submit_urb(devinfo->bulk_urb, GFP_ATOMIC);
if (ret) {
brcmf_err("usb_submit_urb failed %d\n", ret);
return ret;
}
ret = brcmf_usb_ioctl_resp_wait(devinfo);
return (ret == 0);
}
static int
brcmf_usb_dl_writeimage(struct brcmf_usbdev_info *devinfo, u8 *fw, int fwlen)
{
unsigned int sendlen, sent, dllen;
char *bulkchunk = NULL, *dlpos;
struct rdl_state_le state;
u32 rdlstate, rdlbytes;
int err = 0;
brcmf_dbg(USB, "Enter, fw %p, len %d\n", fw, fwlen);
bulkchunk = kmalloc(RDL_CHUNK, GFP_ATOMIC);
if (bulkchunk == NULL) {
err = -ENOMEM;
goto fail;
}
/* 1) Prepare USB boot loader for runtime image */
brcmf_usb_dl_cmd(devinfo, DL_START, &state,
sizeof(struct rdl_state_le));
rdlstate = le32_to_cpu(state.state);
rdlbytes = le32_to_cpu(state.bytes);
/* 2) Check we are in the Waiting state */
if (rdlstate != DL_WAITING) {
brcmf_err("Failed to DL_START\n");
err = -EINVAL;
goto fail;
}
sent = 0;
dlpos = fw;
dllen = fwlen;
/* Get chip id and rev */
while (rdlbytes != dllen) {
/* Wait until the usb device reports it received all
* the bytes we sent */
if ((rdlbytes == sent) && (rdlbytes != dllen)) {
if ((dllen-sent) < RDL_CHUNK)
sendlen = dllen-sent;
else
sendlen = RDL_CHUNK;
/* simply avoid having to send a ZLP by ensuring we
* never have an even
* multiple of 64
*/
if (!(sendlen % 64))
sendlen -= 4;
/* send data */
memcpy(bulkchunk, dlpos, sendlen);
if (brcmf_usb_dl_send_bulk(devinfo, bulkchunk,
sendlen)) {
brcmf_err("send_bulk failed\n");
err = -EINVAL;
goto fail;
}
dlpos += sendlen;
sent += sendlen;
}
if (!brcmf_usb_dl_cmd(devinfo, DL_GETSTATE, &state,
sizeof(struct rdl_state_le))) {
brcmf_err("DL_GETSTATE Failed xxxx\n");
err = -EINVAL;
goto fail;
}
rdlstate = le32_to_cpu(state.state);
rdlbytes = le32_to_cpu(state.bytes);
/* restart if an error is reported */
if (rdlstate == DL_BAD_HDR || rdlstate == DL_BAD_CRC) {
brcmf_err("Bad Hdr or Bad CRC state %d\n",
rdlstate);
err = -EINVAL;
goto fail;
}
}
fail:
kfree(bulkchunk);
brcmf_dbg(USB, "Exit, err=%d\n", err);
return err;
}
static int brcmf_usb_dlstart(struct brcmf_usbdev_info *devinfo, u8 *fw, int len)
{
int err;
brcmf_dbg(USB, "Enter\n");
if (devinfo == NULL)
return -EINVAL;
if (devinfo->bus_pub.devid == 0xDEAD)
return -EINVAL;
err = brcmf_usb_dl_writeimage(devinfo, fw, len);
if (err == 0)
devinfo->bus_pub.state = BRCMFMAC_USB_STATE_DL_DONE;
else
devinfo->bus_pub.state = BRCMFMAC_USB_STATE_DL_FAIL;
brcmf_dbg(USB, "Exit, err=%d\n", err);
return err;
}
static int brcmf_usb_dlrun(struct brcmf_usbdev_info *devinfo)
{
struct rdl_state_le state;
brcmf_dbg(USB, "Enter\n");
if (!devinfo)
return -EINVAL;
if (devinfo->bus_pub.devid == 0xDEAD)
return -EINVAL;
/* Check we are runnable */
brcmf_usb_dl_cmd(devinfo, DL_GETSTATE, &state,
sizeof(struct rdl_state_le));
/* Start the image */
if (state.state == cpu_to_le32(DL_RUNNABLE)) {
if (!brcmf_usb_dl_cmd(devinfo, DL_GO, &state,
sizeof(struct rdl_state_le)))
return -ENODEV;
if (brcmf_usb_resetcfg(devinfo))
return -ENODEV;
/* The Dongle may go for re-enumeration. */
} else {
brcmf_err("Dongle not runnable\n");
return -EINVAL;
}
brcmf_dbg(USB, "Exit\n");
return 0;
}
static bool brcmf_usb_chip_support(int chipid, int chiprev)
{
switch(chipid) {
case 43143:
return true;
case 43235:
case 43236:
case 43238:
return (chiprev == 3);
case 43242:
return true;
default:
break;
}
return false;
}
static int
brcmf_usb_fw_download(struct brcmf_usbdev_info *devinfo)
{
int devid, chiprev;
int err;
brcmf_dbg(USB, "Enter\n");
if (devinfo == NULL)
return -ENODEV;
devid = devinfo->bus_pub.devid;
chiprev = devinfo->bus_pub.chiprev;
if (!brcmf_usb_chip_support(devid, chiprev)) {
brcmf_err("unsupported chip %d rev %d\n",
devid, chiprev);
return -EINVAL;
}
if (!devinfo->image) {
brcmf_err("No firmware!\n");
return -ENOENT;
}
err = brcmf_usb_dlstart(devinfo,
devinfo->image, devinfo->image_len);
if (err == 0)
err = brcmf_usb_dlrun(devinfo);
return err;
}
static void brcmf_usb_detach(struct brcmf_usbdev_info *devinfo)
{
brcmf_dbg(USB, "Enter, devinfo %p\n", devinfo);
/* free the URBS */
brcmf_usb_free_q(&devinfo->rx_freeq, false);
brcmf_usb_free_q(&devinfo->tx_freeq, false);
usb_free_urb(devinfo->intr_urb);
usb_free_urb(devinfo->ctl_urb);
usb_free_urb(devinfo->bulk_urb);
kfree(devinfo->tx_reqs);
kfree(devinfo->rx_reqs);
}
#define TRX_MAGIC 0x30524448 /* "HDR0" */
#define TRX_VERSION 1 /* Version 1 */
#define TRX_MAX_LEN 0x3B0000 /* Max length */
#define TRX_NO_HEADER 1 /* Do not write TRX header */
#define TRX_MAX_OFFSET 3 /* Max number of individual files */
#define TRX_UNCOMP_IMAGE 0x20 /* Trx contains uncompressed image */
struct trx_header_le {
__le32 magic; /* "HDR0" */
__le32 len; /* Length of file including header */
__le32 crc32; /* CRC from flag_version to end of file */
__le32 flag_version; /* 0:15 flags, 16:31 version */
__le32 offsets[TRX_MAX_OFFSET]; /* Offsets of partitions from start of
* header */
};
static int check_file(const u8 *headers)
{
struct trx_header_le *trx;
int actual_len = -1;
brcmf_dbg(USB, "Enter\n");
/* Extract trx header */
trx = (struct trx_header_le *) headers;
if (trx->magic != cpu_to_le32(TRX_MAGIC))
return -1;
headers += sizeof(struct trx_header_le);
if (le32_to_cpu(trx->flag_version) & TRX_UNCOMP_IMAGE) {
actual_len = le32_to_cpu(trx->offsets[TRX_OFFSETS_DLFWLEN_IDX]);
return actual_len + sizeof(struct trx_header_le);
}
return -1;
}
static int brcmf_usb_get_fw(struct brcmf_usbdev_info *devinfo)
{
s8 *fwname;
const struct firmware *fw;
struct brcmf_usb_image *fw_image;
int err;
brcmf_dbg(USB, "Enter\n");
switch (devinfo->bus_pub.devid) {
case 43143:
fwname = BRCMF_USB_43143_FW_NAME;
break;
case 43235:
case 43236:
case 43238:
fwname = BRCMF_USB_43236_FW_NAME;
break;
case 43242:
fwname = BRCMF_USB_43242_FW_NAME;
break;
default:
return -EINVAL;
break;
}
brcmf_dbg(USB, "Loading FW %s\n", fwname);
list_for_each_entry(fw_image, &fw_image_list, list) {
if (fw_image->fwname == fwname) {
devinfo->image = fw_image->image;
devinfo->image_len = fw_image->image_len;
return 0;
}
}
/* fw image not yet loaded. Load it now and add to list */
err = request_firmware(&fw, fwname, devinfo->dev);
if (!fw) {
brcmf_err("fail to request firmware %s\n", fwname);
return err;
}
if (check_file(fw->data) < 0) {
brcmf_err("invalid firmware %s\n", fwname);
return -EINVAL;
}
fw_image = kzalloc(sizeof(*fw_image), GFP_ATOMIC);
if (!fw_image)
return -ENOMEM;
INIT_LIST_HEAD(&fw_image->list);
list_add_tail(&fw_image->list, &fw_image_list);
fw_image->fwname = fwname;
fw_image->image = vmalloc(fw->size);
if (!fw_image->image)
return -ENOMEM;
memcpy(fw_image->image, fw->data, fw->size);
fw_image->image_len = fw->size;
release_firmware(fw);
devinfo->image = fw_image->image;
devinfo->image_len = fw_image->image_len;
return 0;
}
static
struct brcmf_usbdev *brcmf_usb_attach(struct brcmf_usbdev_info *devinfo,
int nrxq, int ntxq)
{
brcmf_dbg(USB, "Enter\n");
devinfo->bus_pub.nrxq = nrxq;
devinfo->rx_low_watermark = nrxq / 2;
devinfo->bus_pub.devinfo = devinfo;
devinfo->bus_pub.ntxq = ntxq;
devinfo->bus_pub.state = BRCMFMAC_USB_STATE_DOWN;
/* flow control when too many tx urbs posted */
devinfo->tx_low_watermark = ntxq / 4;
devinfo->tx_high_watermark = devinfo->tx_low_watermark * 3;
devinfo->bus_pub.bus_mtu = BRCMF_USB_MAX_PKT_SIZE;
/* Initialize other structure content */
init_waitqueue_head(&devinfo->ioctl_resp_wait);
/* Initialize the spinlocks */
spin_lock_init(&devinfo->qlock);
INIT_LIST_HEAD(&devinfo->rx_freeq);
INIT_LIST_HEAD(&devinfo->rx_postq);
INIT_LIST_HEAD(&devinfo->tx_freeq);
INIT_LIST_HEAD(&devinfo->tx_postq);
devinfo->tx_flowblock = false;
devinfo->rx_reqs = brcmf_usbdev_qinit(&devinfo->rx_freeq, nrxq);
if (!devinfo->rx_reqs)
goto error;
devinfo->tx_reqs = brcmf_usbdev_qinit(&devinfo->tx_freeq, ntxq);
if (!devinfo->tx_reqs)
goto error;
devinfo->tx_freecount = ntxq;
devinfo->intr_urb = usb_alloc_urb(0, GFP_ATOMIC);
if (!devinfo->intr_urb) {
brcmf_err("usb_alloc_urb (intr) failed\n");
goto error;
}
devinfo->ctl_urb = usb_alloc_urb(0, GFP_ATOMIC);
if (!devinfo->ctl_urb) {
brcmf_err("usb_alloc_urb (ctl) failed\n");
goto error;
}
devinfo->bulk_urb = usb_alloc_urb(0, GFP_ATOMIC);
if (!devinfo->bulk_urb) {
brcmf_err("usb_alloc_urb (bulk) failed\n");
goto error;
}
if (!brcmf_usb_dlneeded(devinfo))
return &devinfo->bus_pub;
brcmf_dbg(USB, "Start fw downloading\n");
if (brcmf_usb_get_fw(devinfo))
goto error;
if (brcmf_usb_fw_download(devinfo))
goto error;
return &devinfo->bus_pub;
error:
brcmf_err("failed!\n");
brcmf_usb_detach(devinfo);
return NULL;
}
static struct brcmf_bus_ops brcmf_usb_bus_ops = {
.txdata = brcmf_usb_tx,
.init = brcmf_usb_up,
.stop = brcmf_usb_down,
.txctl = brcmf_usb_tx_ctlpkt,
.rxctl = brcmf_usb_rx_ctlpkt,
};
static int brcmf_usb_probe_cb(struct brcmf_usbdev_info *devinfo)
{
struct brcmf_bus *bus = NULL;
struct brcmf_usbdev *bus_pub = NULL;
int ret;
struct device *dev = devinfo->dev;
brcmf_dbg(USB, "Enter\n");
bus_pub = brcmf_usb_attach(devinfo, BRCMF_USB_NRXQ, BRCMF_USB_NTXQ);
if (!bus_pub)
return -ENODEV;
bus = kzalloc(sizeof(struct brcmf_bus), GFP_ATOMIC);
if (!bus) {
ret = -ENOMEM;
goto fail;
}
bus->dev = dev;
bus_pub->bus = bus;
bus->bus_priv.usb = bus_pub;
dev_set_drvdata(dev, bus);
bus->ops = &brcmf_usb_bus_ops;
bus->chip = bus_pub->devid;
bus->chiprev = bus_pub->chiprev;
/* Attach to the common driver interface */
ret = brcmf_attach(0, dev);
if (ret) {
brcmf_err("brcmf_attach failed\n");
goto fail;
}
ret = brcmf_bus_start(dev);
if (ret) {
brcmf_err("dongle is not responding\n");
brcmf_detach(dev);
goto fail;
}
return 0;
fail:
/* Release resources in reverse order */
kfree(bus);
brcmf_usb_detach(devinfo);
return ret;
}
static void
brcmf_usb_disconnect_cb(struct brcmf_usbdev_info *devinfo)
{
if (!devinfo)
return;
brcmf_dbg(USB, "Enter, bus_pub %p\n", devinfo);
brcmf_detach(devinfo->dev);
kfree(devinfo->bus_pub.bus);
brcmf_usb_detach(devinfo);
}
static int
brcmf_usb_probe(struct usb_interface *intf, const struct usb_device_id *id)
{
int ep;
struct usb_endpoint_descriptor *endpoint;
int ret = 0;
struct usb_device *usb = interface_to_usbdev(intf);
int num_of_eps;
u8 endpoint_num;
struct brcmf_usbdev_info *devinfo;
brcmf_dbg(USB, "Enter\n");
devinfo = kzalloc(sizeof(*devinfo), GFP_ATOMIC);
if (devinfo == NULL)
return -ENOMEM;
devinfo->usbdev = usb;
devinfo->dev = &usb->dev;
usb_set_intfdata(intf, devinfo);
/* Check that the device supports only one configuration */
if (usb->descriptor.bNumConfigurations != 1) {
ret = -1;
goto fail;
}
if (usb->descriptor.bDeviceClass != USB_CLASS_VENDOR_SPEC) {
ret = -1;
goto fail;
}
/*
* Only the BDC interface configuration is supported:
* Device class: USB_CLASS_VENDOR_SPEC
* if0 class: USB_CLASS_VENDOR_SPEC
* if0/ep0: control
* if0/ep1: bulk in
* if0/ep2: bulk out (ok if swapped with bulk in)
*/
if (CONFIGDESC(usb)->bNumInterfaces != 1) {
ret = -1;
goto fail;
}
/* Check interface */
if (IFDESC(usb, CONTROL_IF).bInterfaceClass != USB_CLASS_VENDOR_SPEC ||
IFDESC(usb, CONTROL_IF).bInterfaceSubClass != 2 ||
IFDESC(usb, CONTROL_IF).bInterfaceProtocol != 0xff) {
brcmf_err("invalid control interface: class %d, subclass %d, proto %d\n",
IFDESC(usb, CONTROL_IF).bInterfaceClass,
IFDESC(usb, CONTROL_IF).bInterfaceSubClass,
IFDESC(usb, CONTROL_IF).bInterfaceProtocol);
ret = -1;
goto fail;
}
/* Check control endpoint */
endpoint = &IFEPDESC(usb, CONTROL_IF, 0);
if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
!= USB_ENDPOINT_XFER_INT) {
brcmf_err("invalid control endpoint %d\n",
endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK);
ret = -1;
goto fail;
}
endpoint_num = endpoint->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
devinfo->intr_pipe = usb_rcvintpipe(usb, endpoint_num);
devinfo->rx_pipe = 0;
devinfo->rx_pipe2 = 0;
devinfo->tx_pipe = 0;
num_of_eps = IFDESC(usb, BULK_IF).bNumEndpoints - 1;
/* Check data endpoints and get pipes */
for (ep = 1; ep <= num_of_eps; ep++) {
endpoint = &IFEPDESC(usb, BULK_IF, ep);
if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) !=
USB_ENDPOINT_XFER_BULK) {
brcmf_err("invalid data endpoint %d\n", ep);
ret = -1;
goto fail;
}
endpoint_num = endpoint->bEndpointAddress &
USB_ENDPOINT_NUMBER_MASK;
if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
== USB_DIR_IN) {
if (!devinfo->rx_pipe) {
devinfo->rx_pipe =
usb_rcvbulkpipe(usb, endpoint_num);
} else {
devinfo->rx_pipe2 =
usb_rcvbulkpipe(usb, endpoint_num);
}
} else {
devinfo->tx_pipe = usb_sndbulkpipe(usb, endpoint_num);
}
}
/* Allocate interrupt URB and data buffer */
/* RNDIS says 8-byte intr, our old drivers used 4-byte */
if (IFEPDESC(usb, CONTROL_IF, 0).wMaxPacketSize == cpu_to_le16(16))
devinfo->intr_size = 8;
else
devinfo->intr_size = 4;
devinfo->interval = IFEPDESC(usb, CONTROL_IF, 0).bInterval;
if (usb->speed == USB_SPEED_HIGH)
brcmf_dbg(USB, "Broadcom high speed USB wireless device detected\n");
else
brcmf_dbg(USB, "Broadcom full speed USB wireless device detected\n");
ret = brcmf_usb_probe_cb(devinfo);
if (ret)
goto fail;
/* Success */
return 0;
fail:
brcmf_err("failed with errno %d\n", ret);
kfree(devinfo);
usb_set_intfdata(intf, NULL);
return ret;
}
static void
brcmf_usb_disconnect(struct usb_interface *intf)
{
struct brcmf_usbdev_info *devinfo;
brcmf_dbg(USB, "Enter\n");
devinfo = (struct brcmf_usbdev_info *)usb_get_intfdata(intf);
brcmf_usb_disconnect_cb(devinfo);
kfree(devinfo);
brcmf_dbg(USB, "Exit\n");
}
/*
* only need to signal the bus being down and update the state.
*/
static int brcmf_usb_suspend(struct usb_interface *intf, pm_message_t state)
{
struct usb_device *usb = interface_to_usbdev(intf);
struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(&usb->dev);
brcmf_dbg(USB, "Enter\n");
devinfo->bus_pub.state = BRCMFMAC_USB_STATE_SLEEP;
brcmf_detach(&usb->dev);
return 0;
}
/*
* (re-) start the bus.
*/
static int brcmf_usb_resume(struct usb_interface *intf)
{
struct usb_device *usb = interface_to_usbdev(intf);
struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(&usb->dev);
brcmf_dbg(USB, "Enter\n");
if (!brcmf_attach(0, devinfo->dev))
return brcmf_bus_start(&usb->dev);
return 0;
}
static int brcmf_usb_reset_resume(struct usb_interface *intf)
{
struct usb_device *usb = interface_to_usbdev(intf);
struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(&usb->dev);
brcmf_dbg(USB, "Enter\n");
if (!brcmf_usb_fw_download(devinfo))
return brcmf_usb_resume(intf);
return -EIO;
}
#define BRCMF_USB_VENDOR_ID_BROADCOM 0x0a5c
#define BRCMF_USB_DEVICE_ID_43143 0xbd1e
#define BRCMF_USB_DEVICE_ID_43236 0xbd17
#define BRCMF_USB_DEVICE_ID_43242 0xbd1f
#define BRCMF_USB_DEVICE_ID_BCMFW 0x0bdc
static struct usb_device_id brcmf_usb_devid_table[] = {
{ USB_DEVICE(BRCMF_USB_VENDOR_ID_BROADCOM, BRCMF_USB_DEVICE_ID_43143) },
{ USB_DEVICE(BRCMF_USB_VENDOR_ID_BROADCOM, BRCMF_USB_DEVICE_ID_43236) },
{ USB_DEVICE(BRCMF_USB_VENDOR_ID_BROADCOM, BRCMF_USB_DEVICE_ID_43242) },
/* special entry for device with firmware loaded and running */
{ USB_DEVICE(BRCMF_USB_VENDOR_ID_BROADCOM, BRCMF_USB_DEVICE_ID_BCMFW) },
{ }
};
MODULE_DEVICE_TABLE(usb, brcmf_usb_devid_table);
MODULE_FIRMWARE(BRCMF_USB_43143_FW_NAME);
MODULE_FIRMWARE(BRCMF_USB_43236_FW_NAME);
MODULE_FIRMWARE(BRCMF_USB_43242_FW_NAME);
static struct usb_driver brcmf_usbdrvr = {
.name = KBUILD_MODNAME,
.probe = brcmf_usb_probe,
.disconnect = brcmf_usb_disconnect,
.id_table = brcmf_usb_devid_table,
.suspend = brcmf_usb_suspend,
.resume = brcmf_usb_resume,
.reset_resume = brcmf_usb_reset_resume,
.supports_autosuspend = 1,
.disable_hub_initiated_lpm = 1,
};
static void brcmf_release_fw(struct list_head *q)
{
struct brcmf_usb_image *fw_image, *next;
list_for_each_entry_safe(fw_image, next, q, list) {
vfree(fw_image->image);
list_del_init(&fw_image->list);
}
}
static int brcmf_usb_reset_device(struct device *dev, void *notused)
{
/* device past is the usb interface so we
* need to use parent here.
*/
brcmf_dev_reset(dev->parent);
return 0;
}
void brcmf_usb_exit(void)
{
struct device_driver *drv = &brcmf_usbdrvr.drvwrap.driver;
int ret;
brcmf_dbg(USB, "Enter\n");
ret = driver_for_each_device(drv, NULL, NULL,
brcmf_usb_reset_device);
usb_deregister(&brcmf_usbdrvr);
brcmf_release_fw(&fw_image_list);
}
void brcmf_usb_init(void)
{
brcmf_dbg(USB, "Enter\n");
INIT_LIST_HEAD(&fw_image_list);
usb_register(&brcmf_usbdrvr);
}