1542 lines
37 KiB
C
1542 lines
37 KiB
C
/*
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* Copyright (c) 2011 Broadcom Corporation
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/firmware.h>
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#include <linux/usb.h>
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#include <linux/vmalloc.h>
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#include <brcmu_utils.h>
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#include <brcmu_wifi.h>
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#include <dhd_bus.h>
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#include <dhd_dbg.h>
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#include "usb_rdl.h"
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#include "usb.h"
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#define IOCTL_RESP_TIMEOUT 2000
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#define BRCMF_USB_RESET_GETVER_SPINWAIT 100 /* in unit of ms */
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#define BRCMF_USB_RESET_GETVER_LOOP_CNT 10
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#define BRCMF_POSTBOOT_ID 0xA123 /* ID to detect if dongle
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has boot up */
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#define BRCMF_USB_NRXQ 50
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#define BRCMF_USB_NTXQ 50
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#define CONFIGDESC(usb) (&((usb)->actconfig)->desc)
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#define IFPTR(usb, idx) ((usb)->actconfig->interface[(idx)])
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#define IFALTS(usb, idx) (IFPTR((usb), (idx))->altsetting[0])
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#define IFDESC(usb, idx) IFALTS((usb), (idx)).desc
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#define IFEPDESC(usb, idx, ep) (IFALTS((usb), (idx)).endpoint[(ep)]).desc
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#define CONTROL_IF 0
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#define BULK_IF 0
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#define BRCMF_USB_CBCTL_WRITE 0
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#define BRCMF_USB_CBCTL_READ 1
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#define BRCMF_USB_MAX_PKT_SIZE 1600
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#define BRCMF_USB_43143_FW_NAME "brcm/brcmfmac43143.bin"
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#define BRCMF_USB_43236_FW_NAME "brcm/brcmfmac43236b.bin"
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#define BRCMF_USB_43242_FW_NAME "brcm/brcmfmac43242a.bin"
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struct brcmf_usb_image {
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struct list_head list;
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s8 *fwname;
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u8 *image;
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int image_len;
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};
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static struct list_head fw_image_list;
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struct intr_transfer_buf {
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u32 notification;
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u32 reserved;
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};
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struct brcmf_usbdev_info {
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struct brcmf_usbdev bus_pub; /* MUST BE FIRST */
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spinlock_t qlock;
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struct list_head rx_freeq;
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struct list_head rx_postq;
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struct list_head tx_freeq;
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struct list_head tx_postq;
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uint rx_pipe, tx_pipe, intr_pipe, rx_pipe2;
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int rx_low_watermark;
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int tx_low_watermark;
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int tx_high_watermark;
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int tx_freecount;
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bool tx_flowblock;
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struct brcmf_usbreq *tx_reqs;
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struct brcmf_usbreq *rx_reqs;
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u8 *image; /* buffer for combine fw and nvram */
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int image_len;
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struct usb_device *usbdev;
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struct device *dev;
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int ctl_in_pipe, ctl_out_pipe;
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struct urb *ctl_urb; /* URB for control endpoint */
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struct usb_ctrlrequest ctl_write;
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struct usb_ctrlrequest ctl_read;
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u32 ctl_urb_actual_length;
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int ctl_urb_status;
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int ctl_completed;
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wait_queue_head_t ioctl_resp_wait;
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ulong ctl_op;
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struct urb *bulk_urb; /* used for FW download */
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struct urb *intr_urb; /* URB for interrupt endpoint */
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int intr_size; /* Size of interrupt message */
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int interval; /* Interrupt polling interval */
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struct intr_transfer_buf intr; /* Data buffer for interrupt endpoint */
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};
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static void brcmf_usb_rx_refill(struct brcmf_usbdev_info *devinfo,
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struct brcmf_usbreq *req);
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MODULE_AUTHOR("Broadcom Corporation");
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MODULE_DESCRIPTION("Broadcom 802.11n wireless LAN fullmac usb driver.");
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MODULE_SUPPORTED_DEVICE("Broadcom 802.11n WLAN fullmac usb cards");
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MODULE_LICENSE("Dual BSD/GPL");
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static struct brcmf_usbdev *brcmf_usb_get_buspub(struct device *dev)
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{
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struct brcmf_bus *bus_if = dev_get_drvdata(dev);
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return bus_if->bus_priv.usb;
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}
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static struct brcmf_usbdev_info *brcmf_usb_get_businfo(struct device *dev)
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{
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return brcmf_usb_get_buspub(dev)->devinfo;
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}
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static int brcmf_usb_ioctl_resp_wait(struct brcmf_usbdev_info *devinfo)
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{
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return wait_event_timeout(devinfo->ioctl_resp_wait,
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devinfo->ctl_completed,
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msecs_to_jiffies(IOCTL_RESP_TIMEOUT));
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}
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static void brcmf_usb_ioctl_resp_wake(struct brcmf_usbdev_info *devinfo)
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{
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if (waitqueue_active(&devinfo->ioctl_resp_wait))
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wake_up(&devinfo->ioctl_resp_wait);
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}
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static void
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brcmf_usb_ctl_complete(struct brcmf_usbdev_info *devinfo, int type, int status)
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{
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brcmf_dbg(USB, "Enter, status=%d\n", status);
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if (unlikely(devinfo == NULL))
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return;
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if (type == BRCMF_USB_CBCTL_READ) {
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if (status == 0)
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devinfo->bus_pub.stats.rx_ctlpkts++;
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else
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devinfo->bus_pub.stats.rx_ctlerrs++;
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} else if (type == BRCMF_USB_CBCTL_WRITE) {
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if (status == 0)
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devinfo->bus_pub.stats.tx_ctlpkts++;
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else
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devinfo->bus_pub.stats.tx_ctlerrs++;
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}
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devinfo->ctl_urb_status = status;
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devinfo->ctl_completed = true;
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brcmf_usb_ioctl_resp_wake(devinfo);
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}
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static void
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brcmf_usb_ctlread_complete(struct urb *urb)
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{
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struct brcmf_usbdev_info *devinfo =
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(struct brcmf_usbdev_info *)urb->context;
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brcmf_dbg(USB, "Enter\n");
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devinfo->ctl_urb_actual_length = urb->actual_length;
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brcmf_usb_ctl_complete(devinfo, BRCMF_USB_CBCTL_READ,
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urb->status);
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}
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static void
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brcmf_usb_ctlwrite_complete(struct urb *urb)
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{
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struct brcmf_usbdev_info *devinfo =
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(struct brcmf_usbdev_info *)urb->context;
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brcmf_dbg(USB, "Enter\n");
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brcmf_usb_ctl_complete(devinfo, BRCMF_USB_CBCTL_WRITE,
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urb->status);
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}
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static int
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brcmf_usb_send_ctl(struct brcmf_usbdev_info *devinfo, u8 *buf, int len)
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{
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int ret;
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u16 size;
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brcmf_dbg(USB, "Enter\n");
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if (devinfo == NULL || buf == NULL ||
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len == 0 || devinfo->ctl_urb == NULL)
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return -EINVAL;
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size = len;
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devinfo->ctl_write.wLength = cpu_to_le16p(&size);
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devinfo->ctl_urb->transfer_buffer_length = size;
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devinfo->ctl_urb_status = 0;
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devinfo->ctl_urb_actual_length = 0;
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usb_fill_control_urb(devinfo->ctl_urb,
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devinfo->usbdev,
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devinfo->ctl_out_pipe,
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(unsigned char *) &devinfo->ctl_write,
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buf, size,
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(usb_complete_t)brcmf_usb_ctlwrite_complete,
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devinfo);
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ret = usb_submit_urb(devinfo->ctl_urb, GFP_ATOMIC);
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if (ret < 0)
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brcmf_err("usb_submit_urb failed %d\n", ret);
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return ret;
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}
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static int
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brcmf_usb_recv_ctl(struct brcmf_usbdev_info *devinfo, u8 *buf, int len)
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{
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int ret;
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u16 size;
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brcmf_dbg(USB, "Enter\n");
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if ((devinfo == NULL) || (buf == NULL) || (len == 0)
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|| (devinfo->ctl_urb == NULL))
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return -EINVAL;
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size = len;
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devinfo->ctl_read.wLength = cpu_to_le16p(&size);
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devinfo->ctl_urb->transfer_buffer_length = size;
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devinfo->ctl_read.bRequestType = USB_DIR_IN
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| USB_TYPE_CLASS | USB_RECIP_INTERFACE;
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devinfo->ctl_read.bRequest = 1;
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usb_fill_control_urb(devinfo->ctl_urb,
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devinfo->usbdev,
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devinfo->ctl_in_pipe,
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(unsigned char *) &devinfo->ctl_read,
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buf, size,
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(usb_complete_t)brcmf_usb_ctlread_complete,
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devinfo);
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ret = usb_submit_urb(devinfo->ctl_urb, GFP_ATOMIC);
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if (ret < 0)
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brcmf_err("usb_submit_urb failed %d\n", ret);
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return ret;
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}
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static int brcmf_usb_tx_ctlpkt(struct device *dev, u8 *buf, u32 len)
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{
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int err = 0;
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int timeout = 0;
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struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
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brcmf_dbg(USB, "Enter\n");
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if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP)
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return -EIO;
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if (test_and_set_bit(0, &devinfo->ctl_op))
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return -EIO;
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devinfo->ctl_completed = false;
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err = brcmf_usb_send_ctl(devinfo, buf, len);
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if (err) {
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brcmf_err("fail %d bytes: %d\n", err, len);
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clear_bit(0, &devinfo->ctl_op);
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return err;
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}
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timeout = brcmf_usb_ioctl_resp_wait(devinfo);
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clear_bit(0, &devinfo->ctl_op);
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if (!timeout) {
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brcmf_err("Txctl wait timed out\n");
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err = -EIO;
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}
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return err;
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}
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static int brcmf_usb_rx_ctlpkt(struct device *dev, u8 *buf, u32 len)
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{
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int err = 0;
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int timeout = 0;
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struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
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brcmf_dbg(USB, "Enter\n");
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if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP)
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return -EIO;
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if (test_and_set_bit(0, &devinfo->ctl_op))
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return -EIO;
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devinfo->ctl_completed = false;
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err = brcmf_usb_recv_ctl(devinfo, buf, len);
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if (err) {
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brcmf_err("fail %d bytes: %d\n", err, len);
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clear_bit(0, &devinfo->ctl_op);
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return err;
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}
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timeout = brcmf_usb_ioctl_resp_wait(devinfo);
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err = devinfo->ctl_urb_status;
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clear_bit(0, &devinfo->ctl_op);
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if (!timeout) {
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brcmf_err("rxctl wait timed out\n");
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err = -EIO;
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}
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if (!err)
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return devinfo->ctl_urb_actual_length;
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else
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return err;
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}
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static struct brcmf_usbreq *brcmf_usb_deq(struct brcmf_usbdev_info *devinfo,
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struct list_head *q, int *counter)
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{
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unsigned long flags;
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struct brcmf_usbreq *req;
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spin_lock_irqsave(&devinfo->qlock, flags);
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if (list_empty(q)) {
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spin_unlock_irqrestore(&devinfo->qlock, flags);
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return NULL;
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}
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req = list_entry(q->next, struct brcmf_usbreq, list);
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list_del_init(q->next);
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if (counter)
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(*counter)--;
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spin_unlock_irqrestore(&devinfo->qlock, flags);
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return req;
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}
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static void brcmf_usb_enq(struct brcmf_usbdev_info *devinfo,
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struct list_head *q, struct brcmf_usbreq *req,
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int *counter)
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{
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unsigned long flags;
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spin_lock_irqsave(&devinfo->qlock, flags);
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list_add_tail(&req->list, q);
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if (counter)
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(*counter)++;
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spin_unlock_irqrestore(&devinfo->qlock, flags);
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}
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static struct brcmf_usbreq *
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brcmf_usbdev_qinit(struct list_head *q, int qsize)
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{
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int i;
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struct brcmf_usbreq *req, *reqs;
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reqs = kcalloc(qsize, sizeof(struct brcmf_usbreq), GFP_ATOMIC);
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if (reqs == NULL)
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return NULL;
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req = reqs;
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for (i = 0; i < qsize; i++) {
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req->urb = usb_alloc_urb(0, GFP_ATOMIC);
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if (!req->urb)
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goto fail;
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INIT_LIST_HEAD(&req->list);
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list_add_tail(&req->list, q);
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req++;
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}
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return reqs;
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fail:
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brcmf_err("fail!\n");
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while (!list_empty(q)) {
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req = list_entry(q->next, struct brcmf_usbreq, list);
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if (req && req->urb)
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usb_free_urb(req->urb);
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list_del(q->next);
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}
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return NULL;
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}
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static void brcmf_usb_free_q(struct list_head *q, bool pending)
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{
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struct brcmf_usbreq *req, *next;
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int i = 0;
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list_for_each_entry_safe(req, next, q, list) {
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if (!req->urb) {
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brcmf_err("bad req\n");
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break;
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}
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i++;
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if (pending) {
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usb_kill_urb(req->urb);
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} else {
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usb_free_urb(req->urb);
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list_del_init(&req->list);
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}
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}
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}
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static void brcmf_usb_del_fromq(struct brcmf_usbdev_info *devinfo,
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struct brcmf_usbreq *req)
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{
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unsigned long flags;
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spin_lock_irqsave(&devinfo->qlock, flags);
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list_del_init(&req->list);
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spin_unlock_irqrestore(&devinfo->qlock, flags);
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}
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|
|
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static void brcmf_usb_tx_complete(struct urb *urb)
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{
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struct brcmf_usbreq *req = (struct brcmf_usbreq *)urb->context;
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struct brcmf_usbdev_info *devinfo = req->devinfo;
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brcmf_dbg(USB, "Enter, urb->status=%d, skb=%p\n", urb->status,
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req->skb);
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brcmf_usb_del_fromq(devinfo, req);
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brcmf_txcomplete(devinfo->dev, req->skb, urb->status == 0);
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brcmu_pkt_buf_free_skb(req->skb);
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req->skb = NULL;
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brcmf_usb_enq(devinfo, &devinfo->tx_freeq, req, &devinfo->tx_freecount);
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if (devinfo->tx_freecount > devinfo->tx_high_watermark &&
|
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devinfo->tx_flowblock) {
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brcmf_txflowblock(devinfo->dev, false);
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devinfo->tx_flowblock = false;
|
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}
|
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}
|
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|
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static void brcmf_usb_rx_complete(struct urb *urb)
|
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{
|
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struct brcmf_usbreq *req = (struct brcmf_usbreq *)urb->context;
|
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struct brcmf_usbdev_info *devinfo = req->devinfo;
|
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struct sk_buff *skb;
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struct sk_buff_head skbq;
|
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|
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brcmf_dbg(USB, "Enter, urb->status=%d\n", urb->status);
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brcmf_usb_del_fromq(devinfo, req);
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skb = req->skb;
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req->skb = NULL;
|
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|
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/* zero lenght packets indicate usb "failure". Do not refill */
|
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if (urb->status != 0 || !urb->actual_length) {
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brcmu_pkt_buf_free_skb(skb);
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brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL);
|
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return;
|
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}
|
|
|
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if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_UP) {
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skb_queue_head_init(&skbq);
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skb_queue_tail(&skbq, skb);
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skb_put(skb, urb->actual_length);
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brcmf_rx_frames(devinfo->dev, &skbq);
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brcmf_usb_rx_refill(devinfo, req);
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} else {
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brcmu_pkt_buf_free_skb(skb);
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brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL);
|
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}
|
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return;
|
|
|
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}
|
|
|
|
static void brcmf_usb_rx_refill(struct brcmf_usbdev_info *devinfo,
|
|
struct brcmf_usbreq *req)
|
|
{
|
|
struct sk_buff *skb;
|
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int ret;
|
|
|
|
if (!req || !devinfo)
|
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return;
|
|
|
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skb = dev_alloc_skb(devinfo->bus_pub.bus_mtu);
|
|
if (!skb) {
|
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brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL);
|
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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);
|
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req->devinfo = devinfo;
|
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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)
|
|
return -EIO;
|
|
|
|
req = brcmf_usb_deq(devinfo, &devinfo->tx_freeq,
|
|
&devinfo->tx_freecount);
|
|
if (!req) {
|
|
brcmu_pkt_buf_free_skb(skb);
|
|
brcmf_err("no req to send\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
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);
|
|
brcmu_pkt_buf_free_skb(req->skb);
|
|
req->skb = NULL;
|
|
brcmf_usb_enq(devinfo, &devinfo->tx_freeq, req,
|
|
&devinfo->tx_freecount);
|
|
} else {
|
|
if (devinfo->tx_freecount < devinfo->tx_low_watermark &&
|
|
!devinfo->tx_flowblock) {
|
|
brcmf_txflowblock(dev, true);
|
|
devinfo->tx_flowblock = true;
|
|
}
|
|
}
|
|
|
|
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);
|
|
}
|