--- /dev/null
+/*
+ * 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 <brcm_hw_ids.h>
+#include <brcmu_wifi.h>
+#include "bus.h"
+#include "debug.h"
+#include "firmware.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 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"
+#define BRCMF_USB_43569_FW_NAME "brcm/brcmfmac43569.bin"
+
+#define TRX_MAGIC 0x30524448 /* "HDR0" */
+#define TRX_MAX_OFFSET 3 /* Max number of file offsets */
+#define TRX_UNCOMP_IMAGE 0x20 /* Trx holds uncompressed img */
+#define TRX_RDL_CHUNK 1500 /* size of each dl transfer */
+#define TRX_OFFSETS_DLFWLEN_IDX 0
+
+/* Control messages: bRequest values */
+#define DL_GETSTATE 0 /* returns the rdl_state_t struct */
+#define DL_CHECK_CRC 1 /* currently unused */
+#define DL_GO 2 /* execute downloaded image */
+#define DL_START 3 /* initialize dl state */
+#define DL_REBOOT 4 /* reboot the device in 2 seconds */
+#define DL_GETVER 5 /* returns the bootrom_id_t struct */
+#define DL_GO_PROTECTED 6 /* execute the downloaded code and set reset
+ * event to occur in 2 seconds. It is the
+ * responsibility of the downloaded code to
+ * clear this event
+ */
+#define DL_EXEC 7 /* jump to a supplied address */
+#define DL_RESETCFG 8 /* To support single enum on dongle
+ * - Not used by bootloader
+ */
+#define DL_DEFER_RESP_OK 9 /* Potentially defer the response to setup
+ * if resp unavailable
+ */
+
+/* states */
+#define DL_WAITING 0 /* waiting to rx first pkt */
+#define DL_READY 1 /* hdr was good, waiting for more of the
+ * compressed image
+ */
+#define DL_BAD_HDR 2 /* hdr was corrupted */
+#define DL_BAD_CRC 3 /* compressed image was corrupted */
+#define DL_RUNNABLE 4 /* download was successful,waiting for go cmd */
+#define DL_START_FAIL 5 /* failed to initialize correctly */
+#define DL_NVRAM_TOOBIG 6 /* host specified nvram data exceeds DL_NVRAM
+ * value
+ */
+#define DL_IMAGE_TOOBIG 7 /* firmware image too big */
+
+
+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
+ */
+};
+
+struct rdl_state_le {
+ __le32 state;
+ __le32 bytes;
+};
+
+struct bootrom_id_le {
+ __le32 chip; /* Chip id */
+ __le32 chiprev; /* Chip rev */
+ __le32 ramsize; /* Size of RAM */
+ __le32 remapbase; /* Current remap base address */
+ __le32 boardtype; /* Type of board */
+ __le32 boardrev; /* Board revision */
+};
+
+struct brcmf_usb_image {
+ struct list_head list;
+ s8 *fwname;
+ u8 *image;
+ int image_len;
+};
+
+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;
+
+ int rx_low_watermark;
+ int tx_low_watermark;
+ int tx_high_watermark;
+ int tx_freecount;
+ bool tx_flowblock;
+ spinlock_t tx_flowblock_lock;
+
+ struct brcmf_usbreq *tx_reqs;
+ struct brcmf_usbreq *rx_reqs;
+
+ const 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;
+ u8 ifnum;
+
+ struct urb *bulk_urb; /* used for FW download */
+
+ bool wowl_enabled;
+};
+
+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)
+ 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;
+ unsigned long flags;
+
+ 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);
+ spin_lock_irqsave(&devinfo->tx_flowblock_lock, flags);
+ if (devinfo->tx_freecount > devinfo->tx_high_watermark &&
+ devinfo->tx_flowblock) {
+ brcmf_txflowblock(devinfo->dev, false);
+ devinfo->tx_flowblock = false;
+ }
+ spin_unlock_irqrestore(&devinfo->tx_flowblock_lock, flags);
+}
+
+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;
+
+ 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_put(skb, urb->actual_length);
+ brcmf_rx_frame(devinfo->dev, skb);
+ 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");
+ brcmf_bus_change_state(bcmf_bus, BRCMF_BUS_DOWN);
+ } else if (state == BRCMFMAC_USB_STATE_UP) {
+ brcmf_dbg(USB, "DBUS is up\n");
+ brcmf_bus_change_state(bcmf_bus, BRCMF_BUS_UP);
+ } else {
+ brcmf_dbg(USB, "DBUS current state=%d\n", state);
+ }
+}
+
+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;
+ unsigned long flags;
+
+ 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;
+ }
+
+ spin_lock_irqsave(&devinfo->tx_flowblock_lock, flags);
+ if (devinfo->tx_freecount < devinfo->tx_low_watermark &&
+ !devinfo->tx_flowblock) {
+ brcmf_txflowblock(dev, true);
+ devinfo->tx_flowblock = true;
+ }
+ spin_unlock_irqrestore(&devinfo->tx_flowblock_lock, flags);
+ return 0;
+
+fail:
+ return ret;
+}
+
+
+static int brcmf_usb_up(struct device *dev)
+{
+ 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 0;
+
+ /* Success, indicate devinfo is fully up */
+ brcmf_usb_state_change(devinfo, BRCMFMAC_USB_STATE_UP);
+
+ if (devinfo->ctl_urb) {
+ devinfo->ctl_in_pipe = usb_rcvctrlpipe(devinfo->usbdev, 0);
+ devinfo->ctl_out_pipe = usb_sndctrlpipe(devinfo->usbdev, 0);
+
+ /* 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_le16(devinfo->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_le16(devinfo->ifnum);
+ }
+ brcmf_usb_rx_fill_all(devinfo);
+ return 0;
+}
+
+static void brcmf_cancel_all_urbs(struct brcmf_usbdev_info *devinfo)
+{
+ 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_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);
+
+ brcmf_cancel_all_urbs(devinfo);
+}
+
+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 int brcmf_usb_dl_cmd(struct brcmf_usbdev_info *devinfo, u8 cmd,
+ void *buffer, int buflen)
+{
+ int ret;
+ char *tmpbuf;
+ u16 size;
+
+ if ((!devinfo) || (devinfo->ctl_urb == NULL))
+ return -EINVAL;
+
+ tmpbuf = kmalloc(buflen, GFP_ATOMIC);
+ if (!tmpbuf)
+ return -ENOMEM;
+
+ 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);
+ goto finalize;
+ }
+
+ if (!brcmf_usb_ioctl_resp_wait(devinfo)) {
+ usb_kill_urb(devinfo->ctl_urb);
+ ret = -ETIMEDOUT;
+ } else {
+ memcpy(buffer, tmpbuf, buflen);
+ }
+
+finalize:
+ 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;
+ int err;
+
+ 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 */
+ err = brcmf_usb_dl_cmd(devinfo, DL_GETVER, &id, sizeof(id));
+ if ((err) && (err != -ETIMEDOUT))
+ return err;
+ 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(TRX_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(state));
+
+ 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) < TRX_RDL_CHUNK)
+ sendlen = dllen-sent;
+ else
+ sendlen = TRX_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;
+ }
+ err = brcmf_usb_dl_cmd(devinfo, DL_GETSTATE, &state,
+ sizeof(state));
+ if (err) {
+ brcmf_err("DL_GETSTATE Failed\n");
+ 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 */
+ state.state = 0;
+ brcmf_usb_dl_cmd(devinfo, DL_GETSTATE, &state, sizeof(state));
+
+ /* Start the image */
+ if (state.state == cpu_to_le32(DL_RUNNABLE)) {
+ if (brcmf_usb_dl_cmd(devinfo, DL_GO, &state, sizeof(state)))
+ 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 BRCM_CC_43143_CHIP_ID:
+ return true;
+ case BRCM_CC_43235_CHIP_ID:
+ case BRCM_CC_43236_CHIP_ID:
+ case BRCM_CC_43238_CHIP_ID:
+ return (chiprev == 3);
+ case BRCM_CC_43242_CHIP_ID:
+ return true;
+ case BRCM_CC_43566_CHIP_ID:
+ case BRCM_CC_43569_CHIP_ID:
+ 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,
+ (u8 *)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->ctl_urb);
+ usb_free_urb(devinfo->bulk_urb);
+
+ kfree(devinfo->tx_reqs);
+ kfree(devinfo->rx_reqs);
+}
+
+
+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 const char *brcmf_usb_get_fwname(struct brcmf_usbdev_info *devinfo)
+{
+ switch (devinfo->bus_pub.devid) {
+ case BRCM_CC_43143_CHIP_ID:
+ return BRCMF_USB_43143_FW_NAME;
+ case BRCM_CC_43235_CHIP_ID:
+ case BRCM_CC_43236_CHIP_ID:
+ case BRCM_CC_43238_CHIP_ID:
+ return BRCMF_USB_43236_FW_NAME;
+ case BRCM_CC_43242_CHIP_ID:
+ return BRCMF_USB_43242_FW_NAME;
+ case BRCM_CC_43566_CHIP_ID:
+ case BRCM_CC_43569_CHIP_ID:
+ return BRCMF_USB_43569_FW_NAME;
+ default:
+ return NULL;
+ }
+}
+
+
+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);
+ spin_lock_init(&devinfo->tx_flowblock_lock);
+
+ 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->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;
+ }
+
+ return &devinfo->bus_pub;
+
+error:
+ brcmf_err("failed!\n");
+ brcmf_usb_detach(devinfo);
+ return NULL;
+}
+
+static void brcmf_usb_wowl_config(struct device *dev, bool enabled)
+{
+ struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
+
+ brcmf_dbg(USB, "Configuring WOWL, enabled=%d\n", enabled);
+ devinfo->wowl_enabled = enabled;
+ if (enabled)
+ device_set_wakeup_enable(devinfo->dev, true);
+ else
+ device_set_wakeup_enable(devinfo->dev, false);
+}
+
+static struct brcmf_bus_ops brcmf_usb_bus_ops = {
+ .txdata = brcmf_usb_tx,
+ .stop = brcmf_usb_down,
+ .txctl = brcmf_usb_tx_ctlpkt,
+ .rxctl = brcmf_usb_rx_ctlpkt,
+ .wowl_config = brcmf_usb_wowl_config,
+};
+
+static int brcmf_usb_bus_setup(struct brcmf_usbdev_info *devinfo)
+{
+ int ret;
+
+ /* Attach to the common driver interface */
+ ret = brcmf_attach(devinfo->dev);
+ if (ret) {
+ brcmf_err("brcmf_attach failed\n");
+ return ret;
+ }
+
+ ret = brcmf_usb_up(devinfo->dev);
+ if (ret)
+ goto fail;
+
+ ret = brcmf_bus_start(devinfo->dev);
+ if (ret)
+ goto fail;
+
+ return 0;
+fail:
+ brcmf_detach(devinfo->dev);
+ return ret;
+}
+
+static void brcmf_usb_probe_phase2(struct device *dev,
+ const struct firmware *fw,
+ void *nvram, u32 nvlen)
+{
+ struct brcmf_bus *bus = dev_get_drvdata(dev);
+ struct brcmf_usbdev_info *devinfo;
+ int ret;
+
+ brcmf_dbg(USB, "Start fw downloading\n");
+ ret = check_file(fw->data);
+ if (ret < 0) {
+ brcmf_err("invalid firmware\n");
+ release_firmware(fw);
+ goto error;
+ }
+
+ devinfo = bus->bus_priv.usb->devinfo;
+ devinfo->image = fw->data;
+ devinfo->image_len = fw->size;
+
+ ret = brcmf_usb_fw_download(devinfo);
+ release_firmware(fw);
+ if (ret)
+ goto error;
+
+ ret = brcmf_usb_bus_setup(devinfo);
+ if (ret)
+ goto error;
+
+ return;
+error:
+ brcmf_dbg(TRACE, "failed: dev=%s, err=%d\n", dev_name(dev), ret);
+ device_release_driver(dev);
+}
+
+static int brcmf_usb_probe_cb(struct brcmf_usbdev_info *devinfo)
+{
+ struct brcmf_bus *bus = NULL;
+ struct brcmf_usbdev *bus_pub = NULL;
+ struct device *dev = devinfo->dev;
+ int ret;
+
+ 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->proto_type = BRCMF_PROTO_BCDC;
+ bus->always_use_fws_queue = true;
+#ifdef CONFIG_PM
+ bus->wowl_supported = true;
+#endif
+
+ if (!brcmf_usb_dlneeded(devinfo)) {
+ ret = brcmf_usb_bus_setup(devinfo);
+ if (ret)
+ goto fail;
+ /* we are done */
+ return 0;
+ }
+ bus->chip = bus_pub->devid;
+ bus->chiprev = bus_pub->chiprev;
+
+ /* request firmware here */
+ brcmf_fw_get_firmwares(dev, 0, brcmf_usb_get_fwname(devinfo), NULL,
+ brcmf_usb_probe_phase2);
+ 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)
+{
+ struct usb_device *usb = interface_to_usbdev(intf);
+ struct brcmf_usbdev_info *devinfo;
+ struct usb_interface_descriptor *desc;
+ struct usb_endpoint_descriptor *endpoint;
+ int ret = 0;
+ u32 num_of_eps;
+ u8 endpoint_num, ep;
+
+ brcmf_dbg(USB, "Enter 0x%04x:0x%04x\n", id->idVendor, id->idProduct);
+
+ 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) {
+ brcmf_err("Number of configurations: %d not supported\n",
+ usb->descriptor.bNumConfigurations);
+ ret = -ENODEV;
+ goto fail;
+ }
+
+ if ((usb->descriptor.bDeviceClass != USB_CLASS_VENDOR_SPEC) &&
+ (usb->descriptor.bDeviceClass != USB_CLASS_MISC) &&
+ (usb->descriptor.bDeviceClass != USB_CLASS_WIRELESS_CONTROLLER)) {
+ brcmf_err("Device class: 0x%x not supported\n",
+ usb->descriptor.bDeviceClass);
+ ret = -ENODEV;
+ goto fail;
+ }
+
+ desc = &intf->altsetting[0].desc;
+ if ((desc->bInterfaceClass != USB_CLASS_VENDOR_SPEC) ||
+ (desc->bInterfaceSubClass != 2) ||
+ (desc->bInterfaceProtocol != 0xff)) {
+ brcmf_err("non WLAN interface %d: 0x%x:0x%x:0x%x\n",
+ desc->bInterfaceNumber, desc->bInterfaceClass,
+ desc->bInterfaceSubClass, desc->bInterfaceProtocol);
+ ret = -ENODEV;
+ goto fail;
+ }
+
+ num_of_eps = desc->bNumEndpoints;
+ for (ep = 0; ep < num_of_eps; ep++) {
+ endpoint = &intf->altsetting[0].endpoint[ep].desc;
+ endpoint_num = usb_endpoint_num(endpoint);
+ if (!usb_endpoint_xfer_bulk(endpoint))
+ continue;
+ if (usb_endpoint_dir_in(endpoint)) {
+ if (!devinfo->rx_pipe)
+ devinfo->rx_pipe =
+ usb_rcvbulkpipe(usb, endpoint_num);
+ } else {
+ if (!devinfo->tx_pipe)
+ devinfo->tx_pipe =
+ usb_sndbulkpipe(usb, endpoint_num);
+ }
+ }
+ if (devinfo->rx_pipe == 0) {
+ brcmf_err("No RX (in) Bulk EP found\n");
+ ret = -ENODEV;
+ goto fail;
+ }
+ if (devinfo->tx_pipe == 0) {
+ brcmf_err("No TX (out) Bulk EP found\n");
+ ret = -ENODEV;
+ goto fail;
+ }
+
+ devinfo->ifnum = desc->bInterfaceNumber;
+
+ if (usb->speed == USB_SPEED_SUPER)
+ brcmf_dbg(USB, "Broadcom super speed USB WLAN interface detected\n");
+ else if (usb->speed == USB_SPEED_HIGH)
+ brcmf_dbg(USB, "Broadcom high speed USB WLAN interface detected\n");
+ else
+ brcmf_dbg(USB, "Broadcom full speed USB WLAN interface detected\n");
+
+ ret = brcmf_usb_probe_cb(devinfo);
+ if (ret)
+ goto fail;
+
+ /* Success */
+ return 0;
+
+fail:
+ 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;
+ if (devinfo->wowl_enabled)
+ brcmf_cancel_all_urbs(devinfo);
+ else
+ 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 (!devinfo->wowl_enabled)
+ return brcmf_usb_bus_setup(devinfo);
+
+ devinfo->bus_pub.state = BRCMFMAC_USB_STATE_UP;
+ brcmf_usb_rx_fill_all(devinfo);
+ 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");
+
+ return brcmf_fw_get_firmwares(&usb->dev, 0,
+ brcmf_usb_get_fwname(devinfo), NULL,
+ brcmf_usb_probe_phase2);
+}
+
+#define BRCMF_USB_DEVICE(dev_id) \
+ { USB_DEVICE(BRCM_USB_VENDOR_ID_BROADCOM, dev_id) }
+
+static struct usb_device_id brcmf_usb_devid_table[] = {
+ BRCMF_USB_DEVICE(BRCM_USB_43143_DEVICE_ID),
+ BRCMF_USB_DEVICE(BRCM_USB_43236_DEVICE_ID),
+ BRCMF_USB_DEVICE(BRCM_USB_43242_DEVICE_ID),
+ BRCMF_USB_DEVICE(BRCM_USB_43569_DEVICE_ID),
+ /* special entry for device with firmware loaded and running */
+ BRCMF_USB_DEVICE(BRCM_USB_BCMFW_DEVICE_ID),
+ { /* end: all zeroes */ }
+};
+
+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);
+MODULE_FIRMWARE(BRCMF_USB_43569_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 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);
+}
+
+void brcmf_usb_register(void)
+{
+ brcmf_dbg(USB, "Enter\n");
+ usb_register(&brcmf_usbdrvr);
+}
Code Review / kvmfornfv.git / blobdiff