Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2011 Broadcom Corporation |
| 3 | * |
| 4 | * Permission to use, copy, modify, and/or distribute this software for any |
| 5 | * purpose with or without fee is hereby granted, provided that the above |
| 6 | * copyright notice and this permission notice appear in all copies. |
| 7 | * |
| 8 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| 9 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| 10 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
| 11 | * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| 12 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION |
| 13 | * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN |
| 14 | * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 15 | */ |
| 16 | |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 17 | #include <linux/kernel.h> |
| 18 | #include <linux/module.h> |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 19 | #include <linux/firmware.h> |
| 20 | #include <linux/usb.h> |
John W. Linville | e2ff049 | 2012-11-19 11:04:28 -0500 | [diff] [blame] | 21 | #include <linux/vmalloc.h> |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 22 | |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 23 | #include <brcmu_utils.h> |
| 24 | #include <brcmu_wifi.h> |
| 25 | #include <dhd_bus.h> |
| 26 | #include <dhd_dbg.h> |
| 27 | |
| 28 | #include "usb_rdl.h" |
| 29 | #include "usb.h" |
| 30 | |
| 31 | #define IOCTL_RESP_TIMEOUT 2000 |
| 32 | |
Hante Meuleman | 83bc9c31 | 2012-11-14 18:46:06 -0800 | [diff] [blame] | 33 | #define BRCMF_USB_RESET_GETVER_SPINWAIT 100 /* in unit of ms */ |
| 34 | #define BRCMF_USB_RESET_GETVER_LOOP_CNT 10 |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 35 | |
| 36 | #define BRCMF_POSTBOOT_ID 0xA123 /* ID to detect if dongle |
| 37 | has boot up */ |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 38 | #define BRCMF_USB_NRXQ 50 |
| 39 | #define BRCMF_USB_NTXQ 50 |
| 40 | |
| 41 | #define CONFIGDESC(usb) (&((usb)->actconfig)->desc) |
| 42 | #define IFPTR(usb, idx) ((usb)->actconfig->interface[(idx)]) |
| 43 | #define IFALTS(usb, idx) (IFPTR((usb), (idx))->altsetting[0]) |
| 44 | #define IFDESC(usb, idx) IFALTS((usb), (idx)).desc |
| 45 | #define IFEPDESC(usb, idx, ep) (IFALTS((usb), (idx)).endpoint[(ep)]).desc |
| 46 | |
| 47 | #define CONTROL_IF 0 |
| 48 | #define BULK_IF 0 |
| 49 | |
| 50 | #define BRCMF_USB_CBCTL_WRITE 0 |
| 51 | #define BRCMF_USB_CBCTL_READ 1 |
| 52 | #define BRCMF_USB_MAX_PKT_SIZE 1600 |
| 53 | |
Hante Meuleman | 70f0822 | 2012-08-30 19:43:01 +0200 | [diff] [blame] | 54 | #define BRCMF_USB_43143_FW_NAME "brcm/brcmfmac43143.bin" |
Rafał Miłecki | fda8241 | 2012-02-24 07:22:51 +0100 | [diff] [blame] | 55 | #define BRCMF_USB_43236_FW_NAME "brcm/brcmfmac43236b.bin" |
Hante Meuleman | 1212d37 | 2012-08-30 19:43:00 +0200 | [diff] [blame] | 56 | #define BRCMF_USB_43242_FW_NAME "brcm/brcmfmac43242a.bin" |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 57 | |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 58 | struct brcmf_usb_image { |
Hante Meuleman | 803599d | 2012-09-19 22:21:10 +0200 | [diff] [blame] | 59 | struct list_head list; |
| 60 | s8 *fwname; |
| 61 | u8 *image; |
| 62 | int image_len; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 63 | }; |
Hante Meuleman | 803599d | 2012-09-19 22:21:10 +0200 | [diff] [blame] | 64 | static struct list_head fw_image_list; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 65 | |
| 66 | struct intr_transfer_buf { |
| 67 | u32 notification; |
| 68 | u32 reserved; |
| 69 | }; |
| 70 | |
| 71 | struct brcmf_usbdev_info { |
| 72 | struct brcmf_usbdev bus_pub; /* MUST BE FIRST */ |
| 73 | spinlock_t qlock; |
| 74 | struct list_head rx_freeq; |
| 75 | struct list_head rx_postq; |
| 76 | struct list_head tx_freeq; |
| 77 | struct list_head tx_postq; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 78 | uint rx_pipe, tx_pipe, intr_pipe, rx_pipe2; |
| 79 | |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 80 | int rx_low_watermark; |
| 81 | int tx_low_watermark; |
| 82 | int tx_high_watermark; |
Hante Meuleman | c6ab429 | 2012-09-11 21:18:48 +0200 | [diff] [blame] | 83 | int tx_freecount; |
| 84 | bool tx_flowblock; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 85 | |
| 86 | struct brcmf_usbreq *tx_reqs; |
| 87 | struct brcmf_usbreq *rx_reqs; |
| 88 | |
| 89 | u8 *image; /* buffer for combine fw and nvram */ |
| 90 | int image_len; |
| 91 | |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 92 | struct usb_device *usbdev; |
| 93 | struct device *dev; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 94 | |
| 95 | int ctl_in_pipe, ctl_out_pipe; |
| 96 | struct urb *ctl_urb; /* URB for control endpoint */ |
| 97 | struct usb_ctrlrequest ctl_write; |
| 98 | struct usb_ctrlrequest ctl_read; |
| 99 | u32 ctl_urb_actual_length; |
| 100 | int ctl_urb_status; |
| 101 | int ctl_completed; |
| 102 | wait_queue_head_t ioctl_resp_wait; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 103 | ulong ctl_op; |
| 104 | |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 105 | struct urb *bulk_urb; /* used for FW download */ |
| 106 | struct urb *intr_urb; /* URB for interrupt endpoint */ |
| 107 | int intr_size; /* Size of interrupt message */ |
| 108 | int interval; /* Interrupt polling interval */ |
| 109 | struct intr_transfer_buf intr; /* Data buffer for interrupt endpoint */ |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 110 | }; |
| 111 | |
| 112 | static void brcmf_usb_rx_refill(struct brcmf_usbdev_info *devinfo, |
| 113 | struct brcmf_usbreq *req); |
| 114 | |
| 115 | MODULE_AUTHOR("Broadcom Corporation"); |
| 116 | MODULE_DESCRIPTION("Broadcom 802.11n wireless LAN fullmac usb driver."); |
| 117 | MODULE_SUPPORTED_DEVICE("Broadcom 802.11n WLAN fullmac usb cards"); |
| 118 | MODULE_LICENSE("Dual BSD/GPL"); |
| 119 | |
| 120 | static struct brcmf_usbdev *brcmf_usb_get_buspub(struct device *dev) |
| 121 | { |
| 122 | struct brcmf_bus *bus_if = dev_get_drvdata(dev); |
| 123 | return bus_if->bus_priv.usb; |
| 124 | } |
| 125 | |
| 126 | static struct brcmf_usbdev_info *brcmf_usb_get_businfo(struct device *dev) |
| 127 | { |
| 128 | return brcmf_usb_get_buspub(dev)->devinfo; |
| 129 | } |
| 130 | |
Hante Meuleman | 70398a5 | 2012-09-27 14:17:47 +0200 | [diff] [blame] | 131 | static int brcmf_usb_ioctl_resp_wait(struct brcmf_usbdev_info *devinfo) |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 132 | { |
Hante Meuleman | 70398a5 | 2012-09-27 14:17:47 +0200 | [diff] [blame] | 133 | return wait_event_timeout(devinfo->ioctl_resp_wait, |
| 134 | devinfo->ctl_completed, |
| 135 | msecs_to_jiffies(IOCTL_RESP_TIMEOUT)); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 136 | } |
| 137 | |
Hante Meuleman | 70398a5 | 2012-09-27 14:17:47 +0200 | [diff] [blame] | 138 | static void brcmf_usb_ioctl_resp_wake(struct brcmf_usbdev_info *devinfo) |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 139 | { |
| 140 | if (waitqueue_active(&devinfo->ioctl_resp_wait)) |
Hante Meuleman | 70398a5 | 2012-09-27 14:17:47 +0200 | [diff] [blame] | 141 | wake_up(&devinfo->ioctl_resp_wait); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 142 | } |
| 143 | |
| 144 | static void |
| 145 | brcmf_usb_ctl_complete(struct brcmf_usbdev_info *devinfo, int type, int status) |
| 146 | { |
Hante Meuleman | cb8b73d | 2012-11-05 16:22:31 -0800 | [diff] [blame] | 147 | brcmf_dbg(USB, "Enter, status=%d\n", status); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 148 | |
| 149 | if (unlikely(devinfo == NULL)) |
| 150 | return; |
| 151 | |
| 152 | if (type == BRCMF_USB_CBCTL_READ) { |
| 153 | if (status == 0) |
| 154 | devinfo->bus_pub.stats.rx_ctlpkts++; |
| 155 | else |
| 156 | devinfo->bus_pub.stats.rx_ctlerrs++; |
| 157 | } else if (type == BRCMF_USB_CBCTL_WRITE) { |
| 158 | if (status == 0) |
| 159 | devinfo->bus_pub.stats.tx_ctlpkts++; |
| 160 | else |
| 161 | devinfo->bus_pub.stats.tx_ctlerrs++; |
| 162 | } |
| 163 | |
| 164 | devinfo->ctl_urb_status = status; |
| 165 | devinfo->ctl_completed = true; |
| 166 | brcmf_usb_ioctl_resp_wake(devinfo); |
| 167 | } |
| 168 | |
| 169 | static void |
| 170 | brcmf_usb_ctlread_complete(struct urb *urb) |
| 171 | { |
| 172 | struct brcmf_usbdev_info *devinfo = |
| 173 | (struct brcmf_usbdev_info *)urb->context; |
| 174 | |
Hante Meuleman | cb8b73d | 2012-11-05 16:22:31 -0800 | [diff] [blame] | 175 | brcmf_dbg(USB, "Enter\n"); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 176 | devinfo->ctl_urb_actual_length = urb->actual_length; |
| 177 | brcmf_usb_ctl_complete(devinfo, BRCMF_USB_CBCTL_READ, |
| 178 | urb->status); |
| 179 | } |
| 180 | |
| 181 | static void |
| 182 | brcmf_usb_ctlwrite_complete(struct urb *urb) |
| 183 | { |
| 184 | struct brcmf_usbdev_info *devinfo = |
| 185 | (struct brcmf_usbdev_info *)urb->context; |
| 186 | |
Hante Meuleman | cb8b73d | 2012-11-05 16:22:31 -0800 | [diff] [blame] | 187 | brcmf_dbg(USB, "Enter\n"); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 188 | brcmf_usb_ctl_complete(devinfo, BRCMF_USB_CBCTL_WRITE, |
| 189 | urb->status); |
| 190 | } |
| 191 | |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 192 | static int |
| 193 | brcmf_usb_send_ctl(struct brcmf_usbdev_info *devinfo, u8 *buf, int len) |
| 194 | { |
| 195 | int ret; |
| 196 | u16 size; |
| 197 | |
Hante Meuleman | cb8b73d | 2012-11-05 16:22:31 -0800 | [diff] [blame] | 198 | brcmf_dbg(USB, "Enter\n"); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 199 | if (devinfo == NULL || buf == NULL || |
| 200 | len == 0 || devinfo->ctl_urb == NULL) |
| 201 | return -EINVAL; |
| 202 | |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 203 | size = len; |
| 204 | devinfo->ctl_write.wLength = cpu_to_le16p(&size); |
| 205 | devinfo->ctl_urb->transfer_buffer_length = size; |
| 206 | devinfo->ctl_urb_status = 0; |
| 207 | devinfo->ctl_urb_actual_length = 0; |
| 208 | |
| 209 | usb_fill_control_urb(devinfo->ctl_urb, |
| 210 | devinfo->usbdev, |
| 211 | devinfo->ctl_out_pipe, |
| 212 | (unsigned char *) &devinfo->ctl_write, |
| 213 | buf, size, |
| 214 | (usb_complete_t)brcmf_usb_ctlwrite_complete, |
| 215 | devinfo); |
| 216 | |
| 217 | ret = usb_submit_urb(devinfo->ctl_urb, GFP_ATOMIC); |
| 218 | if (ret < 0) |
Arend van Spriel | 5e8149f | 2012-12-07 10:49:57 +0100 | [diff] [blame] | 219 | brcmf_err("usb_submit_urb failed %d\n", ret); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 220 | |
| 221 | return ret; |
| 222 | } |
| 223 | |
| 224 | static int |
| 225 | brcmf_usb_recv_ctl(struct brcmf_usbdev_info *devinfo, u8 *buf, int len) |
| 226 | { |
| 227 | int ret; |
| 228 | u16 size; |
| 229 | |
Hante Meuleman | cb8b73d | 2012-11-05 16:22:31 -0800 | [diff] [blame] | 230 | brcmf_dbg(USB, "Enter\n"); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 231 | if ((devinfo == NULL) || (buf == NULL) || (len == 0) |
| 232 | || (devinfo->ctl_urb == NULL)) |
| 233 | return -EINVAL; |
| 234 | |
| 235 | size = len; |
| 236 | devinfo->ctl_read.wLength = cpu_to_le16p(&size); |
| 237 | devinfo->ctl_urb->transfer_buffer_length = size; |
| 238 | |
Hante Meuleman | 8164329 | 2012-09-19 22:21:14 +0200 | [diff] [blame] | 239 | devinfo->ctl_read.bRequestType = USB_DIR_IN |
| 240 | | USB_TYPE_CLASS | USB_RECIP_INTERFACE; |
| 241 | devinfo->ctl_read.bRequest = 1; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 242 | |
| 243 | usb_fill_control_urb(devinfo->ctl_urb, |
| 244 | devinfo->usbdev, |
| 245 | devinfo->ctl_in_pipe, |
| 246 | (unsigned char *) &devinfo->ctl_read, |
| 247 | buf, size, |
| 248 | (usb_complete_t)brcmf_usb_ctlread_complete, |
| 249 | devinfo); |
| 250 | |
| 251 | ret = usb_submit_urb(devinfo->ctl_urb, GFP_ATOMIC); |
| 252 | if (ret < 0) |
Arend van Spriel | 5e8149f | 2012-12-07 10:49:57 +0100 | [diff] [blame] | 253 | brcmf_err("usb_submit_urb failed %d\n", ret); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 254 | |
| 255 | return ret; |
| 256 | } |
| 257 | |
| 258 | static int brcmf_usb_tx_ctlpkt(struct device *dev, u8 *buf, u32 len) |
| 259 | { |
| 260 | int err = 0; |
| 261 | int timeout = 0; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 262 | struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev); |
| 263 | |
Hante Meuleman | cb8b73d | 2012-11-05 16:22:31 -0800 | [diff] [blame] | 264 | brcmf_dbg(USB, "Enter\n"); |
Hante Meuleman | 7c38e69 | 2012-11-14 18:46:07 -0800 | [diff] [blame] | 265 | if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP) |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 266 | return -EIO; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 267 | |
| 268 | if (test_and_set_bit(0, &devinfo->ctl_op)) |
| 269 | return -EIO; |
| 270 | |
Hante Meuleman | a77f574 | 2012-08-30 19:42:58 +0200 | [diff] [blame] | 271 | devinfo->ctl_completed = false; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 272 | err = brcmf_usb_send_ctl(devinfo, buf, len); |
| 273 | if (err) { |
Arend van Spriel | 5e8149f | 2012-12-07 10:49:57 +0100 | [diff] [blame] | 274 | brcmf_err("fail %d bytes: %d\n", err, len); |
Hante Meuleman | 6385df2 | 2012-09-19 22:21:16 +0200 | [diff] [blame] | 275 | clear_bit(0, &devinfo->ctl_op); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 276 | return err; |
| 277 | } |
Hante Meuleman | 70398a5 | 2012-09-27 14:17:47 +0200 | [diff] [blame] | 278 | timeout = brcmf_usb_ioctl_resp_wait(devinfo); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 279 | clear_bit(0, &devinfo->ctl_op); |
| 280 | if (!timeout) { |
Arend van Spriel | 5e8149f | 2012-12-07 10:49:57 +0100 | [diff] [blame] | 281 | brcmf_err("Txctl wait timed out\n"); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 282 | err = -EIO; |
| 283 | } |
| 284 | return err; |
| 285 | } |
| 286 | |
| 287 | static int brcmf_usb_rx_ctlpkt(struct device *dev, u8 *buf, u32 len) |
| 288 | { |
| 289 | int err = 0; |
| 290 | int timeout = 0; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 291 | struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev); |
| 292 | |
Hante Meuleman | cb8b73d | 2012-11-05 16:22:31 -0800 | [diff] [blame] | 293 | brcmf_dbg(USB, "Enter\n"); |
Hante Meuleman | 7c38e69 | 2012-11-14 18:46:07 -0800 | [diff] [blame] | 294 | if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP) |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 295 | return -EIO; |
Hante Meuleman | 7c38e69 | 2012-11-14 18:46:07 -0800 | [diff] [blame] | 296 | |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 297 | if (test_and_set_bit(0, &devinfo->ctl_op)) |
| 298 | return -EIO; |
| 299 | |
Hante Meuleman | 70398a5 | 2012-09-27 14:17:47 +0200 | [diff] [blame] | 300 | devinfo->ctl_completed = false; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 301 | err = brcmf_usb_recv_ctl(devinfo, buf, len); |
| 302 | if (err) { |
Arend van Spriel | 5e8149f | 2012-12-07 10:49:57 +0100 | [diff] [blame] | 303 | brcmf_err("fail %d bytes: %d\n", err, len); |
Hante Meuleman | 6385df2 | 2012-09-19 22:21:16 +0200 | [diff] [blame] | 304 | clear_bit(0, &devinfo->ctl_op); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 305 | return err; |
| 306 | } |
Hante Meuleman | 70398a5 | 2012-09-27 14:17:47 +0200 | [diff] [blame] | 307 | timeout = brcmf_usb_ioctl_resp_wait(devinfo); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 308 | err = devinfo->ctl_urb_status; |
| 309 | clear_bit(0, &devinfo->ctl_op); |
| 310 | if (!timeout) { |
Arend van Spriel | 5e8149f | 2012-12-07 10:49:57 +0100 | [diff] [blame] | 311 | brcmf_err("rxctl wait timed out\n"); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 312 | err = -EIO; |
| 313 | } |
| 314 | if (!err) |
| 315 | return devinfo->ctl_urb_actual_length; |
| 316 | else |
| 317 | return err; |
| 318 | } |
| 319 | |
| 320 | static struct brcmf_usbreq *brcmf_usb_deq(struct brcmf_usbdev_info *devinfo, |
Hante Meuleman | c6ab429 | 2012-09-11 21:18:48 +0200 | [diff] [blame] | 321 | struct list_head *q, int *counter) |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 322 | { |
| 323 | unsigned long flags; |
| 324 | struct brcmf_usbreq *req; |
| 325 | spin_lock_irqsave(&devinfo->qlock, flags); |
| 326 | if (list_empty(q)) { |
| 327 | spin_unlock_irqrestore(&devinfo->qlock, flags); |
| 328 | return NULL; |
| 329 | } |
| 330 | req = list_entry(q->next, struct brcmf_usbreq, list); |
| 331 | list_del_init(q->next); |
Hante Meuleman | c6ab429 | 2012-09-11 21:18:48 +0200 | [diff] [blame] | 332 | if (counter) |
| 333 | (*counter)--; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 334 | spin_unlock_irqrestore(&devinfo->qlock, flags); |
| 335 | return req; |
| 336 | |
| 337 | } |
| 338 | |
| 339 | static void brcmf_usb_enq(struct brcmf_usbdev_info *devinfo, |
Hante Meuleman | c6ab429 | 2012-09-11 21:18:48 +0200 | [diff] [blame] | 340 | struct list_head *q, struct brcmf_usbreq *req, |
| 341 | int *counter) |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 342 | { |
| 343 | unsigned long flags; |
| 344 | spin_lock_irqsave(&devinfo->qlock, flags); |
| 345 | list_add_tail(&req->list, q); |
Hante Meuleman | c6ab429 | 2012-09-11 21:18:48 +0200 | [diff] [blame] | 346 | if (counter) |
| 347 | (*counter)++; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 348 | spin_unlock_irqrestore(&devinfo->qlock, flags); |
| 349 | } |
| 350 | |
| 351 | static struct brcmf_usbreq * |
| 352 | brcmf_usbdev_qinit(struct list_head *q, int qsize) |
| 353 | { |
| 354 | int i; |
| 355 | struct brcmf_usbreq *req, *reqs; |
| 356 | |
| 357 | reqs = kzalloc(sizeof(struct brcmf_usbreq) * qsize, GFP_ATOMIC); |
| 358 | if (reqs == NULL) { |
Arend van Spriel | 5e8149f | 2012-12-07 10:49:57 +0100 | [diff] [blame] | 359 | brcmf_err("fail to allocate memory!\n"); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 360 | return NULL; |
| 361 | } |
| 362 | req = reqs; |
| 363 | |
| 364 | for (i = 0; i < qsize; i++) { |
| 365 | req->urb = usb_alloc_urb(0, GFP_ATOMIC); |
| 366 | if (!req->urb) |
| 367 | goto fail; |
| 368 | |
| 369 | INIT_LIST_HEAD(&req->list); |
| 370 | list_add_tail(&req->list, q); |
| 371 | req++; |
| 372 | } |
| 373 | return reqs; |
| 374 | fail: |
Arend van Spriel | 5e8149f | 2012-12-07 10:49:57 +0100 | [diff] [blame] | 375 | brcmf_err("fail!\n"); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 376 | while (!list_empty(q)) { |
| 377 | req = list_entry(q->next, struct brcmf_usbreq, list); |
| 378 | if (req && req->urb) |
| 379 | usb_free_urb(req->urb); |
| 380 | list_del(q->next); |
| 381 | } |
| 382 | return NULL; |
| 383 | |
| 384 | } |
| 385 | |
| 386 | static void brcmf_usb_free_q(struct list_head *q, bool pending) |
| 387 | { |
| 388 | struct brcmf_usbreq *req, *next; |
| 389 | int i = 0; |
| 390 | list_for_each_entry_safe(req, next, q, list) { |
Dan Carpenter | d4ca009 | 2012-02-24 09:22:27 +0300 | [diff] [blame] | 391 | if (!req->urb) { |
Arend van Spriel | 5e8149f | 2012-12-07 10:49:57 +0100 | [diff] [blame] | 392 | brcmf_err("bad req\n"); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 393 | break; |
| 394 | } |
| 395 | i++; |
| 396 | if (pending) { |
| 397 | usb_kill_urb(req->urb); |
| 398 | } else { |
| 399 | usb_free_urb(req->urb); |
| 400 | list_del_init(&req->list); |
| 401 | } |
| 402 | } |
| 403 | } |
| 404 | |
| 405 | static void brcmf_usb_del_fromq(struct brcmf_usbdev_info *devinfo, |
| 406 | struct brcmf_usbreq *req) |
| 407 | { |
| 408 | unsigned long flags; |
| 409 | |
| 410 | spin_lock_irqsave(&devinfo->qlock, flags); |
| 411 | list_del_init(&req->list); |
| 412 | spin_unlock_irqrestore(&devinfo->qlock, flags); |
| 413 | } |
| 414 | |
| 415 | |
| 416 | static void brcmf_usb_tx_complete(struct urb *urb) |
| 417 | { |
| 418 | struct brcmf_usbreq *req = (struct brcmf_usbreq *)urb->context; |
| 419 | struct brcmf_usbdev_info *devinfo = req->devinfo; |
| 420 | |
Hante Meuleman | cb8b73d | 2012-11-05 16:22:31 -0800 | [diff] [blame] | 421 | brcmf_dbg(USB, "Enter, urb->status=%d, skb=%p\n", urb->status, |
| 422 | req->skb); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 423 | brcmf_usb_del_fromq(devinfo, req); |
| 424 | if (urb->status == 0) |
Arend van Spriel | 1d9c179 | 2012-03-02 22:55:47 +0100 | [diff] [blame] | 425 | devinfo->bus_pub.bus->dstats.tx_packets++; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 426 | else |
Arend van Spriel | 1d9c179 | 2012-03-02 22:55:47 +0100 | [diff] [blame] | 427 | devinfo->bus_pub.bus->dstats.tx_errors++; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 428 | |
Hante Meuleman | 1e2d958 | 2012-09-27 14:17:50 +0200 | [diff] [blame] | 429 | brcmf_txcomplete(devinfo->dev, req->skb, urb->status == 0); |
| 430 | |
Arend van Spriel | 01e3331 | 2012-08-30 10:05:34 +0200 | [diff] [blame] | 431 | brcmu_pkt_buf_free_skb(req->skb); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 432 | req->skb = NULL; |
Hante Meuleman | c6ab429 | 2012-09-11 21:18:48 +0200 | [diff] [blame] | 433 | brcmf_usb_enq(devinfo, &devinfo->tx_freeq, req, &devinfo->tx_freecount); |
| 434 | if (devinfo->tx_freecount > devinfo->tx_high_watermark && |
| 435 | devinfo->tx_flowblock) { |
| 436 | brcmf_txflowblock(devinfo->dev, false); |
| 437 | devinfo->tx_flowblock = false; |
| 438 | } |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 439 | } |
| 440 | |
| 441 | static void brcmf_usb_rx_complete(struct urb *urb) |
| 442 | { |
| 443 | struct brcmf_usbreq *req = (struct brcmf_usbreq *)urb->context; |
| 444 | struct brcmf_usbdev_info *devinfo = req->devinfo; |
| 445 | struct sk_buff *skb; |
Arend van Spriel | 3aa7aad | 2013-01-02 15:22:42 +0100 | [diff] [blame^] | 446 | struct sk_buff_head skbq; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 447 | int ifidx = 0; |
| 448 | |
Hante Meuleman | cb8b73d | 2012-11-05 16:22:31 -0800 | [diff] [blame] | 449 | brcmf_dbg(USB, "Enter, urb->status=%d\n", urb->status); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 450 | brcmf_usb_del_fromq(devinfo, req); |
| 451 | skb = req->skb; |
| 452 | req->skb = NULL; |
| 453 | |
| 454 | if (urb->status == 0) { |
Arend van Spriel | 1d9c179 | 2012-03-02 22:55:47 +0100 | [diff] [blame] | 455 | devinfo->bus_pub.bus->dstats.rx_packets++; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 456 | } else { |
Arend van Spriel | 1d9c179 | 2012-03-02 22:55:47 +0100 | [diff] [blame] | 457 | devinfo->bus_pub.bus->dstats.rx_errors++; |
Arend van Spriel | 01e3331 | 2012-08-30 10:05:34 +0200 | [diff] [blame] | 458 | brcmu_pkt_buf_free_skb(skb); |
Hante Meuleman | c6ab429 | 2012-09-11 21:18:48 +0200 | [diff] [blame] | 459 | brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 460 | return; |
| 461 | } |
| 462 | |
Hante Meuleman | 7c38e69 | 2012-11-14 18:46:07 -0800 | [diff] [blame] | 463 | if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_UP) { |
Arend van Spriel | 3aa7aad | 2013-01-02 15:22:42 +0100 | [diff] [blame^] | 464 | skb_queue_head_init(&skbq); |
| 465 | skb_queue_tail(&skbq, skb); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 466 | skb_put(skb, urb->actual_length); |
| 467 | if (brcmf_proto_hdrpull(devinfo->dev, &ifidx, skb) != 0) { |
Arend van Spriel | 5e8149f | 2012-12-07 10:49:57 +0100 | [diff] [blame] | 468 | brcmf_err("rx protocol error\n"); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 469 | brcmu_pkt_buf_free_skb(skb); |
| 470 | devinfo->bus_pub.bus->dstats.rx_errors++; |
Hante Meuleman | 64477eb | 2012-09-11 21:18:50 +0200 | [diff] [blame] | 471 | } else |
Arend van Spriel | 3aa7aad | 2013-01-02 15:22:42 +0100 | [diff] [blame^] | 472 | brcmf_rx_frames(devinfo->dev, ifidx, &skbq); |
Hante Meuleman | 0429a6f | 2013-01-02 15:22:38 +0100 | [diff] [blame] | 473 | /* zero lenght packets indicate usb "failure". Do not refill */ |
| 474 | if (urb->actual_length) |
| 475 | brcmf_usb_rx_refill(devinfo, req); |
| 476 | else |
| 477 | brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 478 | } else { |
Arend van Spriel | 01e3331 | 2012-08-30 10:05:34 +0200 | [diff] [blame] | 479 | brcmu_pkt_buf_free_skb(skb); |
Hante Meuleman | c6ab429 | 2012-09-11 21:18:48 +0200 | [diff] [blame] | 480 | brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 481 | } |
| 482 | return; |
| 483 | |
| 484 | } |
| 485 | |
| 486 | static void brcmf_usb_rx_refill(struct brcmf_usbdev_info *devinfo, |
| 487 | struct brcmf_usbreq *req) |
| 488 | { |
| 489 | struct sk_buff *skb; |
| 490 | int ret; |
| 491 | |
| 492 | if (!req || !devinfo) |
| 493 | return; |
| 494 | |
| 495 | skb = dev_alloc_skb(devinfo->bus_pub.bus_mtu); |
| 496 | if (!skb) { |
Hante Meuleman | c6ab429 | 2012-09-11 21:18:48 +0200 | [diff] [blame] | 497 | brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 498 | return; |
| 499 | } |
| 500 | req->skb = skb; |
| 501 | |
| 502 | usb_fill_bulk_urb(req->urb, devinfo->usbdev, devinfo->rx_pipe, |
| 503 | skb->data, skb_tailroom(skb), brcmf_usb_rx_complete, |
| 504 | req); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 505 | req->devinfo = devinfo; |
Hante Meuleman | c6ab429 | 2012-09-11 21:18:48 +0200 | [diff] [blame] | 506 | brcmf_usb_enq(devinfo, &devinfo->rx_postq, req, NULL); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 507 | |
| 508 | ret = usb_submit_urb(req->urb, GFP_ATOMIC); |
Hante Meuleman | 2e875ac | 2012-08-30 10:05:36 +0200 | [diff] [blame] | 509 | if (ret) { |
| 510 | brcmf_usb_del_fromq(devinfo, req); |
Arend van Spriel | 01e3331 | 2012-08-30 10:05:34 +0200 | [diff] [blame] | 511 | brcmu_pkt_buf_free_skb(req->skb); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 512 | req->skb = NULL; |
Hante Meuleman | c6ab429 | 2012-09-11 21:18:48 +0200 | [diff] [blame] | 513 | brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 514 | } |
| 515 | return; |
| 516 | } |
| 517 | |
| 518 | static void brcmf_usb_rx_fill_all(struct brcmf_usbdev_info *devinfo) |
| 519 | { |
| 520 | struct brcmf_usbreq *req; |
| 521 | |
Hante Meuleman | 7c38e69 | 2012-11-14 18:46:07 -0800 | [diff] [blame] | 522 | if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP) { |
Arend van Spriel | 5e8149f | 2012-12-07 10:49:57 +0100 | [diff] [blame] | 523 | brcmf_err("bus is not up=%d\n", devinfo->bus_pub.state); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 524 | return; |
| 525 | } |
Hante Meuleman | c6ab429 | 2012-09-11 21:18:48 +0200 | [diff] [blame] | 526 | while ((req = brcmf_usb_deq(devinfo, &devinfo->rx_freeq, NULL)) != NULL) |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 527 | brcmf_usb_rx_refill(devinfo, req); |
| 528 | } |
| 529 | |
| 530 | static void |
| 531 | brcmf_usb_state_change(struct brcmf_usbdev_info *devinfo, int state) |
| 532 | { |
| 533 | struct brcmf_bus *bcmf_bus = devinfo->bus_pub.bus; |
| 534 | int old_state; |
| 535 | |
Hante Meuleman | cb8b73d | 2012-11-05 16:22:31 -0800 | [diff] [blame] | 536 | brcmf_dbg(USB, "Enter, current state=%d, new state=%d\n", |
| 537 | devinfo->bus_pub.state, state); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 538 | |
| 539 | if (devinfo->bus_pub.state == state) |
| 540 | return; |
| 541 | |
| 542 | old_state = devinfo->bus_pub.state; |
Hante Meuleman | 7c38e69 | 2012-11-14 18:46:07 -0800 | [diff] [blame] | 543 | devinfo->bus_pub.state = state; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 544 | |
| 545 | /* update state of upper layer */ |
Hante Meuleman | 7c38e69 | 2012-11-14 18:46:07 -0800 | [diff] [blame] | 546 | if (state == BRCMFMAC_USB_STATE_DOWN) { |
Hante Meuleman | cb8b73d | 2012-11-05 16:22:31 -0800 | [diff] [blame] | 547 | brcmf_dbg(USB, "DBUS is down\n"); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 548 | bcmf_bus->state = BRCMF_BUS_DOWN; |
Hante Meuleman | 7c38e69 | 2012-11-14 18:46:07 -0800 | [diff] [blame] | 549 | } else if (state == BRCMFMAC_USB_STATE_UP) { |
| 550 | brcmf_dbg(USB, "DBUS is up\n"); |
| 551 | bcmf_bus->state = BRCMF_BUS_DATA; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 552 | } else { |
Hante Meuleman | cb8b73d | 2012-11-05 16:22:31 -0800 | [diff] [blame] | 553 | brcmf_dbg(USB, "DBUS current state=%d\n", state); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 554 | } |
| 555 | } |
| 556 | |
| 557 | static void |
| 558 | brcmf_usb_intr_complete(struct urb *urb) |
| 559 | { |
| 560 | struct brcmf_usbdev_info *devinfo = |
| 561 | (struct brcmf_usbdev_info *)urb->context; |
Hante Meuleman | 7c38e69 | 2012-11-14 18:46:07 -0800 | [diff] [blame] | 562 | int err; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 563 | |
Hante Meuleman | cb8b73d | 2012-11-05 16:22:31 -0800 | [diff] [blame] | 564 | brcmf_dbg(USB, "Enter, urb->status=%d\n", urb->status); |
| 565 | |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 566 | if (devinfo == NULL) |
| 567 | return; |
| 568 | |
| 569 | if (unlikely(urb->status)) { |
Hante Meuleman | 7c38e69 | 2012-11-14 18:46:07 -0800 | [diff] [blame] | 570 | if (urb->status == -ENOENT || |
| 571 | urb->status == -ESHUTDOWN || |
| 572 | urb->status == -ENODEV) { |
| 573 | brcmf_usb_state_change(devinfo, |
| 574 | BRCMFMAC_USB_STATE_DOWN); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 575 | } |
| 576 | } |
| 577 | |
Hante Meuleman | 7c38e69 | 2012-11-14 18:46:07 -0800 | [diff] [blame] | 578 | if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_DOWN) { |
Arend van Spriel | 5e8149f | 2012-12-07 10:49:57 +0100 | [diff] [blame] | 579 | brcmf_err("intr cb when DBUS down, ignoring\n"); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 580 | return; |
| 581 | } |
| 582 | |
Hante Meuleman | 7c38e69 | 2012-11-14 18:46:07 -0800 | [diff] [blame] | 583 | if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_UP) { |
| 584 | err = usb_submit_urb(devinfo->intr_urb, GFP_ATOMIC); |
| 585 | if (err) |
Arend van Spriel | 5e8149f | 2012-12-07 10:49:57 +0100 | [diff] [blame] | 586 | brcmf_err("usb_submit_urb, err=%d\n", err); |
Hante Meuleman | 7c38e69 | 2012-11-14 18:46:07 -0800 | [diff] [blame] | 587 | } |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 588 | } |
| 589 | |
| 590 | static int brcmf_usb_tx(struct device *dev, struct sk_buff *skb) |
| 591 | { |
| 592 | struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev); |
| 593 | struct brcmf_usbreq *req; |
| 594 | int ret; |
| 595 | |
Hante Meuleman | cb8b73d | 2012-11-05 16:22:31 -0800 | [diff] [blame] | 596 | brcmf_dbg(USB, "Enter, skb=%p\n", skb); |
Hante Meuleman | 7c38e69 | 2012-11-14 18:46:07 -0800 | [diff] [blame] | 597 | if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP) |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 598 | return -EIO; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 599 | |
Hante Meuleman | c6ab429 | 2012-09-11 21:18:48 +0200 | [diff] [blame] | 600 | req = brcmf_usb_deq(devinfo, &devinfo->tx_freeq, |
| 601 | &devinfo->tx_freecount); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 602 | if (!req) { |
Hante Meuleman | 2e875ac | 2012-08-30 10:05:36 +0200 | [diff] [blame] | 603 | brcmu_pkt_buf_free_skb(skb); |
Arend van Spriel | 5e8149f | 2012-12-07 10:49:57 +0100 | [diff] [blame] | 604 | brcmf_err("no req to send\n"); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 605 | return -ENOMEM; |
| 606 | } |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 607 | |
| 608 | req->skb = skb; |
| 609 | req->devinfo = devinfo; |
| 610 | usb_fill_bulk_urb(req->urb, devinfo->usbdev, devinfo->tx_pipe, |
| 611 | skb->data, skb->len, brcmf_usb_tx_complete, req); |
| 612 | req->urb->transfer_flags |= URB_ZERO_PACKET; |
Hante Meuleman | c6ab429 | 2012-09-11 21:18:48 +0200 | [diff] [blame] | 613 | brcmf_usb_enq(devinfo, &devinfo->tx_postq, req, NULL); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 614 | ret = usb_submit_urb(req->urb, GFP_ATOMIC); |
Hante Meuleman | 2e875ac | 2012-08-30 10:05:36 +0200 | [diff] [blame] | 615 | if (ret) { |
Arend van Spriel | 5e8149f | 2012-12-07 10:49:57 +0100 | [diff] [blame] | 616 | brcmf_err("brcmf_usb_tx usb_submit_urb FAILED\n"); |
Hante Meuleman | 2e875ac | 2012-08-30 10:05:36 +0200 | [diff] [blame] | 617 | brcmf_usb_del_fromq(devinfo, req); |
| 618 | brcmu_pkt_buf_free_skb(req->skb); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 619 | req->skb = NULL; |
Hante Meuleman | c6ab429 | 2012-09-11 21:18:48 +0200 | [diff] [blame] | 620 | brcmf_usb_enq(devinfo, &devinfo->tx_freeq, req, |
| 621 | &devinfo->tx_freecount); |
| 622 | } else { |
| 623 | if (devinfo->tx_freecount < devinfo->tx_low_watermark && |
| 624 | !devinfo->tx_flowblock) { |
| 625 | brcmf_txflowblock(dev, true); |
| 626 | devinfo->tx_flowblock = true; |
| 627 | } |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 628 | } |
| 629 | |
| 630 | return ret; |
| 631 | } |
| 632 | |
| 633 | |
| 634 | static int brcmf_usb_up(struct device *dev) |
| 635 | { |
| 636 | struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev); |
| 637 | u16 ifnum; |
Hante Meuleman | 7c38e69 | 2012-11-14 18:46:07 -0800 | [diff] [blame] | 638 | int ret; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 639 | |
Hante Meuleman | cb8b73d | 2012-11-05 16:22:31 -0800 | [diff] [blame] | 640 | brcmf_dbg(USB, "Enter\n"); |
Hante Meuleman | 7c38e69 | 2012-11-14 18:46:07 -0800 | [diff] [blame] | 641 | if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_UP) |
Dan Carpenter | d4ca009 | 2012-02-24 09:22:27 +0300 | [diff] [blame] | 642 | return 0; |
| 643 | |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 644 | /* Success, indicate devinfo is fully up */ |
Hante Meuleman | 7c38e69 | 2012-11-14 18:46:07 -0800 | [diff] [blame] | 645 | brcmf_usb_state_change(devinfo, BRCMFMAC_USB_STATE_UP); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 646 | |
| 647 | if (devinfo->intr_urb) { |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 648 | usb_fill_int_urb(devinfo->intr_urb, devinfo->usbdev, |
| 649 | devinfo->intr_pipe, |
| 650 | &devinfo->intr, |
| 651 | devinfo->intr_size, |
| 652 | (usb_complete_t)brcmf_usb_intr_complete, |
| 653 | devinfo, |
| 654 | devinfo->interval); |
| 655 | |
| 656 | ret = usb_submit_urb(devinfo->intr_urb, GFP_ATOMIC); |
| 657 | if (ret) { |
Arend van Spriel | 5e8149f | 2012-12-07 10:49:57 +0100 | [diff] [blame] | 658 | brcmf_err("USB_SUBMIT_URB failed with status %d\n", |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 659 | ret); |
| 660 | return -EINVAL; |
| 661 | } |
| 662 | } |
| 663 | |
| 664 | if (devinfo->ctl_urb) { |
| 665 | devinfo->ctl_in_pipe = usb_rcvctrlpipe(devinfo->usbdev, 0); |
| 666 | devinfo->ctl_out_pipe = usb_sndctrlpipe(devinfo->usbdev, 0); |
| 667 | |
| 668 | ifnum = IFDESC(devinfo->usbdev, CONTROL_IF).bInterfaceNumber; |
| 669 | |
| 670 | /* CTL Write */ |
| 671 | devinfo->ctl_write.bRequestType = |
| 672 | USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE; |
| 673 | devinfo->ctl_write.bRequest = 0; |
| 674 | devinfo->ctl_write.wValue = cpu_to_le16(0); |
| 675 | devinfo->ctl_write.wIndex = cpu_to_le16p(&ifnum); |
| 676 | |
| 677 | /* CTL Read */ |
| 678 | devinfo->ctl_read.bRequestType = |
| 679 | USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE; |
| 680 | devinfo->ctl_read.bRequest = 1; |
| 681 | devinfo->ctl_read.wValue = cpu_to_le16(0); |
| 682 | devinfo->ctl_read.wIndex = cpu_to_le16p(&ifnum); |
| 683 | } |
| 684 | brcmf_usb_rx_fill_all(devinfo); |
| 685 | return 0; |
| 686 | } |
| 687 | |
| 688 | static void brcmf_usb_down(struct device *dev) |
| 689 | { |
| 690 | struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev); |
| 691 | |
Hante Meuleman | cb8b73d | 2012-11-05 16:22:31 -0800 | [diff] [blame] | 692 | brcmf_dbg(USB, "Enter\n"); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 693 | if (devinfo == NULL) |
| 694 | return; |
| 695 | |
Hante Meuleman | 7c38e69 | 2012-11-14 18:46:07 -0800 | [diff] [blame] | 696 | if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_DOWN) |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 697 | return; |
| 698 | |
Hante Meuleman | 7c38e69 | 2012-11-14 18:46:07 -0800 | [diff] [blame] | 699 | brcmf_usb_state_change(devinfo, BRCMFMAC_USB_STATE_DOWN); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 700 | if (devinfo->intr_urb) |
| 701 | usb_kill_urb(devinfo->intr_urb); |
| 702 | |
| 703 | if (devinfo->ctl_urb) |
| 704 | usb_kill_urb(devinfo->ctl_urb); |
| 705 | |
| 706 | if (devinfo->bulk_urb) |
| 707 | usb_kill_urb(devinfo->bulk_urb); |
| 708 | brcmf_usb_free_q(&devinfo->tx_postq, true); |
| 709 | |
| 710 | brcmf_usb_free_q(&devinfo->rx_postq, true); |
| 711 | } |
| 712 | |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 713 | static void |
| 714 | brcmf_usb_sync_complete(struct urb *urb) |
| 715 | { |
| 716 | struct brcmf_usbdev_info *devinfo = |
| 717 | (struct brcmf_usbdev_info *)urb->context; |
| 718 | |
Hante Meuleman | 1e271c9 | 2012-10-22 10:36:18 -0700 | [diff] [blame] | 719 | devinfo->ctl_completed = true; |
| 720 | brcmf_usb_ioctl_resp_wake(devinfo); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 721 | } |
| 722 | |
| 723 | static bool brcmf_usb_dl_cmd(struct brcmf_usbdev_info *devinfo, u8 cmd, |
| 724 | void *buffer, int buflen) |
| 725 | { |
| 726 | int ret = 0; |
| 727 | char *tmpbuf; |
| 728 | u16 size; |
| 729 | |
| 730 | if ((!devinfo) || (devinfo->ctl_urb == NULL)) |
| 731 | return false; |
| 732 | |
| 733 | tmpbuf = kmalloc(buflen, GFP_ATOMIC); |
| 734 | if (!tmpbuf) |
| 735 | return false; |
| 736 | |
| 737 | size = buflen; |
| 738 | devinfo->ctl_urb->transfer_buffer_length = size; |
| 739 | |
| 740 | devinfo->ctl_read.wLength = cpu_to_le16p(&size); |
| 741 | devinfo->ctl_read.bRequestType = USB_DIR_IN | USB_TYPE_VENDOR | |
| 742 | USB_RECIP_INTERFACE; |
| 743 | devinfo->ctl_read.bRequest = cmd; |
| 744 | |
| 745 | usb_fill_control_urb(devinfo->ctl_urb, |
| 746 | devinfo->usbdev, |
| 747 | usb_rcvctrlpipe(devinfo->usbdev, 0), |
| 748 | (unsigned char *) &devinfo->ctl_read, |
| 749 | (void *) tmpbuf, size, |
| 750 | (usb_complete_t)brcmf_usb_sync_complete, devinfo); |
| 751 | |
Hante Meuleman | 1e271c9 | 2012-10-22 10:36:18 -0700 | [diff] [blame] | 752 | devinfo->ctl_completed = false; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 753 | ret = usb_submit_urb(devinfo->ctl_urb, GFP_ATOMIC); |
| 754 | if (ret < 0) { |
Arend van Spriel | 5e8149f | 2012-12-07 10:49:57 +0100 | [diff] [blame] | 755 | brcmf_err("usb_submit_urb failed %d\n", ret); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 756 | kfree(tmpbuf); |
| 757 | return false; |
| 758 | } |
| 759 | |
Hante Meuleman | 1e271c9 | 2012-10-22 10:36:18 -0700 | [diff] [blame] | 760 | ret = brcmf_usb_ioctl_resp_wait(devinfo); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 761 | memcpy(buffer, tmpbuf, buflen); |
| 762 | kfree(tmpbuf); |
| 763 | |
Hante Meuleman | 1e271c9 | 2012-10-22 10:36:18 -0700 | [diff] [blame] | 764 | return ret; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 765 | } |
| 766 | |
| 767 | static bool |
| 768 | brcmf_usb_dlneeded(struct brcmf_usbdev_info *devinfo) |
| 769 | { |
| 770 | struct bootrom_id_le id; |
| 771 | u32 chipid, chiprev; |
| 772 | |
Hante Meuleman | cb8b73d | 2012-11-05 16:22:31 -0800 | [diff] [blame] | 773 | brcmf_dbg(USB, "Enter\n"); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 774 | |
| 775 | if (devinfo == NULL) |
| 776 | return false; |
| 777 | |
| 778 | /* Check if firmware downloaded already by querying runtime ID */ |
| 779 | id.chip = cpu_to_le32(0xDEAD); |
Hante Meuleman | 83bc9c31 | 2012-11-14 18:46:06 -0800 | [diff] [blame] | 780 | brcmf_usb_dl_cmd(devinfo, DL_GETVER, &id, sizeof(id)); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 781 | |
| 782 | chipid = le32_to_cpu(id.chip); |
| 783 | chiprev = le32_to_cpu(id.chiprev); |
| 784 | |
| 785 | if ((chipid & 0x4300) == 0x4300) |
Hante Meuleman | cb8b73d | 2012-11-05 16:22:31 -0800 | [diff] [blame] | 786 | brcmf_dbg(USB, "chip %x rev 0x%x\n", chipid, chiprev); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 787 | else |
Hante Meuleman | cb8b73d | 2012-11-05 16:22:31 -0800 | [diff] [blame] | 788 | brcmf_dbg(USB, "chip %d rev 0x%x\n", chipid, chiprev); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 789 | if (chipid == BRCMF_POSTBOOT_ID) { |
Hante Meuleman | cb8b73d | 2012-11-05 16:22:31 -0800 | [diff] [blame] | 790 | brcmf_dbg(USB, "firmware already downloaded\n"); |
Hante Meuleman | 83bc9c31 | 2012-11-14 18:46:06 -0800 | [diff] [blame] | 791 | brcmf_usb_dl_cmd(devinfo, DL_RESETCFG, &id, sizeof(id)); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 792 | return false; |
| 793 | } else { |
Arend van Spriel | ac94f19 | 2012-03-02 22:55:46 +0100 | [diff] [blame] | 794 | devinfo->bus_pub.devid = chipid; |
| 795 | devinfo->bus_pub.chiprev = chiprev; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 796 | } |
| 797 | return true; |
| 798 | } |
| 799 | |
| 800 | static int |
| 801 | brcmf_usb_resetcfg(struct brcmf_usbdev_info *devinfo) |
| 802 | { |
| 803 | struct bootrom_id_le id; |
Hante Meuleman | 83bc9c31 | 2012-11-14 18:46:06 -0800 | [diff] [blame] | 804 | u32 loop_cnt; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 805 | |
Hante Meuleman | cb8b73d | 2012-11-05 16:22:31 -0800 | [diff] [blame] | 806 | brcmf_dbg(USB, "Enter\n"); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 807 | |
Hante Meuleman | 83bc9c31 | 2012-11-14 18:46:06 -0800 | [diff] [blame] | 808 | loop_cnt = 0; |
| 809 | do { |
| 810 | mdelay(BRCMF_USB_RESET_GETVER_SPINWAIT); |
| 811 | loop_cnt++; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 812 | id.chip = cpu_to_le32(0xDEAD); /* Get the ID */ |
Hante Meuleman | 83bc9c31 | 2012-11-14 18:46:06 -0800 | [diff] [blame] | 813 | brcmf_usb_dl_cmd(devinfo, DL_GETVER, &id, sizeof(id)); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 814 | if (id.chip == cpu_to_le32(BRCMF_POSTBOOT_ID)) |
| 815 | break; |
Hante Meuleman | 83bc9c31 | 2012-11-14 18:46:06 -0800 | [diff] [blame] | 816 | } while (loop_cnt < BRCMF_USB_RESET_GETVER_LOOP_CNT); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 817 | |
| 818 | if (id.chip == cpu_to_le32(BRCMF_POSTBOOT_ID)) { |
Hante Meuleman | 83bc9c31 | 2012-11-14 18:46:06 -0800 | [diff] [blame] | 819 | brcmf_dbg(USB, "postboot chip 0x%x/rev 0x%x\n", |
| 820 | le32_to_cpu(id.chip), le32_to_cpu(id.chiprev)); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 821 | |
Hante Meuleman | 83bc9c31 | 2012-11-14 18:46:06 -0800 | [diff] [blame] | 822 | brcmf_usb_dl_cmd(devinfo, DL_RESETCFG, &id, sizeof(id)); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 823 | return 0; |
| 824 | } else { |
Arend van Spriel | 5e8149f | 2012-12-07 10:49:57 +0100 | [diff] [blame] | 825 | brcmf_err("Cannot talk to Dongle. Firmware is not UP, %d ms\n", |
Hante Meuleman | 83bc9c31 | 2012-11-14 18:46:06 -0800 | [diff] [blame] | 826 | BRCMF_USB_RESET_GETVER_SPINWAIT * loop_cnt); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 827 | return -EINVAL; |
| 828 | } |
| 829 | } |
| 830 | |
| 831 | |
| 832 | static int |
| 833 | brcmf_usb_dl_send_bulk(struct brcmf_usbdev_info *devinfo, void *buffer, int len) |
| 834 | { |
| 835 | int ret; |
| 836 | |
| 837 | if ((devinfo == NULL) || (devinfo->bulk_urb == NULL)) |
| 838 | return -EINVAL; |
| 839 | |
| 840 | /* Prepare the URB */ |
| 841 | usb_fill_bulk_urb(devinfo->bulk_urb, devinfo->usbdev, |
| 842 | devinfo->tx_pipe, buffer, len, |
| 843 | (usb_complete_t)brcmf_usb_sync_complete, devinfo); |
| 844 | |
| 845 | devinfo->bulk_urb->transfer_flags |= URB_ZERO_PACKET; |
| 846 | |
Hante Meuleman | 1e271c9 | 2012-10-22 10:36:18 -0700 | [diff] [blame] | 847 | devinfo->ctl_completed = false; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 848 | ret = usb_submit_urb(devinfo->bulk_urb, GFP_ATOMIC); |
| 849 | if (ret) { |
Arend van Spriel | 5e8149f | 2012-12-07 10:49:57 +0100 | [diff] [blame] | 850 | brcmf_err("usb_submit_urb failed %d\n", ret); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 851 | return ret; |
| 852 | } |
Hante Meuleman | 1e271c9 | 2012-10-22 10:36:18 -0700 | [diff] [blame] | 853 | ret = brcmf_usb_ioctl_resp_wait(devinfo); |
| 854 | return (ret == 0); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 855 | } |
| 856 | |
| 857 | static int |
| 858 | brcmf_usb_dl_writeimage(struct brcmf_usbdev_info *devinfo, u8 *fw, int fwlen) |
| 859 | { |
| 860 | unsigned int sendlen, sent, dllen; |
| 861 | char *bulkchunk = NULL, *dlpos; |
| 862 | struct rdl_state_le state; |
| 863 | u32 rdlstate, rdlbytes; |
| 864 | int err = 0; |
Hante Meuleman | cb8b73d | 2012-11-05 16:22:31 -0800 | [diff] [blame] | 865 | |
| 866 | brcmf_dbg(USB, "Enter, fw %p, len %d\n", fw, fwlen); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 867 | |
| 868 | bulkchunk = kmalloc(RDL_CHUNK, GFP_ATOMIC); |
| 869 | if (bulkchunk == NULL) { |
| 870 | err = -ENOMEM; |
| 871 | goto fail; |
| 872 | } |
| 873 | |
| 874 | /* 1) Prepare USB boot loader for runtime image */ |
| 875 | brcmf_usb_dl_cmd(devinfo, DL_START, &state, |
| 876 | sizeof(struct rdl_state_le)); |
| 877 | |
| 878 | rdlstate = le32_to_cpu(state.state); |
| 879 | rdlbytes = le32_to_cpu(state.bytes); |
| 880 | |
| 881 | /* 2) Check we are in the Waiting state */ |
| 882 | if (rdlstate != DL_WAITING) { |
Arend van Spriel | 5e8149f | 2012-12-07 10:49:57 +0100 | [diff] [blame] | 883 | brcmf_err("Failed to DL_START\n"); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 884 | err = -EINVAL; |
| 885 | goto fail; |
| 886 | } |
| 887 | sent = 0; |
| 888 | dlpos = fw; |
| 889 | dllen = fwlen; |
| 890 | |
| 891 | /* Get chip id and rev */ |
| 892 | while (rdlbytes != dllen) { |
| 893 | /* Wait until the usb device reports it received all |
| 894 | * the bytes we sent */ |
| 895 | if ((rdlbytes == sent) && (rdlbytes != dllen)) { |
| 896 | if ((dllen-sent) < RDL_CHUNK) |
| 897 | sendlen = dllen-sent; |
| 898 | else |
| 899 | sendlen = RDL_CHUNK; |
| 900 | |
| 901 | /* simply avoid having to send a ZLP by ensuring we |
| 902 | * never have an even |
| 903 | * multiple of 64 |
| 904 | */ |
| 905 | if (!(sendlen % 64)) |
| 906 | sendlen -= 4; |
| 907 | |
| 908 | /* send data */ |
| 909 | memcpy(bulkchunk, dlpos, sendlen); |
| 910 | if (brcmf_usb_dl_send_bulk(devinfo, bulkchunk, |
| 911 | sendlen)) { |
Arend van Spriel | 5e8149f | 2012-12-07 10:49:57 +0100 | [diff] [blame] | 912 | brcmf_err("send_bulk failed\n"); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 913 | err = -EINVAL; |
| 914 | goto fail; |
| 915 | } |
| 916 | |
| 917 | dlpos += sendlen; |
| 918 | sent += sendlen; |
| 919 | } |
| 920 | if (!brcmf_usb_dl_cmd(devinfo, DL_GETSTATE, &state, |
| 921 | sizeof(struct rdl_state_le))) { |
Arend van Spriel | 5e8149f | 2012-12-07 10:49:57 +0100 | [diff] [blame] | 922 | brcmf_err("DL_GETSTATE Failed xxxx\n"); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 923 | err = -EINVAL; |
| 924 | goto fail; |
| 925 | } |
| 926 | |
| 927 | rdlstate = le32_to_cpu(state.state); |
| 928 | rdlbytes = le32_to_cpu(state.bytes); |
| 929 | |
| 930 | /* restart if an error is reported */ |
| 931 | if (rdlstate == DL_BAD_HDR || rdlstate == DL_BAD_CRC) { |
Arend van Spriel | 5e8149f | 2012-12-07 10:49:57 +0100 | [diff] [blame] | 932 | brcmf_err("Bad Hdr or Bad CRC state %d\n", |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 933 | rdlstate); |
| 934 | err = -EINVAL; |
| 935 | goto fail; |
| 936 | } |
| 937 | } |
| 938 | |
| 939 | fail: |
| 940 | kfree(bulkchunk); |
Hante Meuleman | cb8b73d | 2012-11-05 16:22:31 -0800 | [diff] [blame] | 941 | brcmf_dbg(USB, "Exit, err=%d\n", err); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 942 | return err; |
| 943 | } |
| 944 | |
| 945 | static int brcmf_usb_dlstart(struct brcmf_usbdev_info *devinfo, u8 *fw, int len) |
| 946 | { |
| 947 | int err; |
| 948 | |
Hante Meuleman | cb8b73d | 2012-11-05 16:22:31 -0800 | [diff] [blame] | 949 | brcmf_dbg(USB, "Enter\n"); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 950 | |
| 951 | if (devinfo == NULL) |
| 952 | return -EINVAL; |
| 953 | |
Arend van Spriel | ac94f19 | 2012-03-02 22:55:46 +0100 | [diff] [blame] | 954 | if (devinfo->bus_pub.devid == 0xDEAD) |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 955 | return -EINVAL; |
| 956 | |
| 957 | err = brcmf_usb_dl_writeimage(devinfo, fw, len); |
| 958 | if (err == 0) |
Hante Meuleman | 7c38e69 | 2012-11-14 18:46:07 -0800 | [diff] [blame] | 959 | devinfo->bus_pub.state = BRCMFMAC_USB_STATE_DL_DONE; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 960 | else |
Hante Meuleman | 7c38e69 | 2012-11-14 18:46:07 -0800 | [diff] [blame] | 961 | devinfo->bus_pub.state = BRCMFMAC_USB_STATE_DL_FAIL; |
Hante Meuleman | cb8b73d | 2012-11-05 16:22:31 -0800 | [diff] [blame] | 962 | brcmf_dbg(USB, "Exit, err=%d\n", err); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 963 | |
| 964 | return err; |
| 965 | } |
| 966 | |
| 967 | static int brcmf_usb_dlrun(struct brcmf_usbdev_info *devinfo) |
| 968 | { |
| 969 | struct rdl_state_le state; |
| 970 | |
Hante Meuleman | cb8b73d | 2012-11-05 16:22:31 -0800 | [diff] [blame] | 971 | brcmf_dbg(USB, "Enter\n"); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 972 | if (!devinfo) |
| 973 | return -EINVAL; |
| 974 | |
Arend van Spriel | ac94f19 | 2012-03-02 22:55:46 +0100 | [diff] [blame] | 975 | if (devinfo->bus_pub.devid == 0xDEAD) |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 976 | return -EINVAL; |
| 977 | |
| 978 | /* Check we are runnable */ |
| 979 | brcmf_usb_dl_cmd(devinfo, DL_GETSTATE, &state, |
| 980 | sizeof(struct rdl_state_le)); |
| 981 | |
| 982 | /* Start the image */ |
| 983 | if (state.state == cpu_to_le32(DL_RUNNABLE)) { |
| 984 | if (!brcmf_usb_dl_cmd(devinfo, DL_GO, &state, |
| 985 | sizeof(struct rdl_state_le))) |
| 986 | return -ENODEV; |
| 987 | if (brcmf_usb_resetcfg(devinfo)) |
| 988 | return -ENODEV; |
| 989 | /* The Dongle may go for re-enumeration. */ |
| 990 | } else { |
Arend van Spriel | 5e8149f | 2012-12-07 10:49:57 +0100 | [diff] [blame] | 991 | brcmf_err("Dongle not runnable\n"); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 992 | return -EINVAL; |
| 993 | } |
Hante Meuleman | cb8b73d | 2012-11-05 16:22:31 -0800 | [diff] [blame] | 994 | brcmf_dbg(USB, "Exit\n"); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 995 | return 0; |
| 996 | } |
| 997 | |
| 998 | static bool brcmf_usb_chip_support(int chipid, int chiprev) |
| 999 | { |
| 1000 | switch(chipid) { |
Hante Meuleman | 70f0822 | 2012-08-30 19:43:01 +0200 | [diff] [blame] | 1001 | case 43143: |
| 1002 | return true; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1003 | case 43235: |
| 1004 | case 43236: |
| 1005 | case 43238: |
| 1006 | return (chiprev == 3); |
Hante Meuleman | 1212d37 | 2012-08-30 19:43:00 +0200 | [diff] [blame] | 1007 | case 43242: |
| 1008 | return true; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1009 | default: |
| 1010 | break; |
| 1011 | } |
| 1012 | return false; |
| 1013 | } |
| 1014 | |
| 1015 | static int |
| 1016 | brcmf_usb_fw_download(struct brcmf_usbdev_info *devinfo) |
| 1017 | { |
Arend van Spriel | ac94f19 | 2012-03-02 22:55:46 +0100 | [diff] [blame] | 1018 | int devid, chiprev; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1019 | int err; |
| 1020 | |
Hante Meuleman | cb8b73d | 2012-11-05 16:22:31 -0800 | [diff] [blame] | 1021 | brcmf_dbg(USB, "Enter\n"); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1022 | if (devinfo == NULL) |
| 1023 | return -ENODEV; |
| 1024 | |
Arend van Spriel | ac94f19 | 2012-03-02 22:55:46 +0100 | [diff] [blame] | 1025 | devid = devinfo->bus_pub.devid; |
| 1026 | chiprev = devinfo->bus_pub.chiprev; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1027 | |
Arend van Spriel | ac94f19 | 2012-03-02 22:55:46 +0100 | [diff] [blame] | 1028 | if (!brcmf_usb_chip_support(devid, chiprev)) { |
Arend van Spriel | 5e8149f | 2012-12-07 10:49:57 +0100 | [diff] [blame] | 1029 | brcmf_err("unsupported chip %d rev %d\n", |
Arend van Spriel | ac94f19 | 2012-03-02 22:55:46 +0100 | [diff] [blame] | 1030 | devid, chiprev); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1031 | return -EINVAL; |
| 1032 | } |
| 1033 | |
| 1034 | if (!devinfo->image) { |
Arend van Spriel | 5e8149f | 2012-12-07 10:49:57 +0100 | [diff] [blame] | 1035 | brcmf_err("No firmware!\n"); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1036 | return -ENOENT; |
| 1037 | } |
| 1038 | |
| 1039 | err = brcmf_usb_dlstart(devinfo, |
| 1040 | devinfo->image, devinfo->image_len); |
| 1041 | if (err == 0) |
| 1042 | err = brcmf_usb_dlrun(devinfo); |
| 1043 | return err; |
| 1044 | } |
| 1045 | |
| 1046 | |
Hante Meuleman | d74a0b5 | 2012-09-11 21:18:51 +0200 | [diff] [blame] | 1047 | static void brcmf_usb_detach(struct brcmf_usbdev_info *devinfo) |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1048 | { |
Hante Meuleman | cb8b73d | 2012-11-05 16:22:31 -0800 | [diff] [blame] | 1049 | brcmf_dbg(USB, "Enter, devinfo %p\n", devinfo); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1050 | |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1051 | /* free the URBS */ |
| 1052 | brcmf_usb_free_q(&devinfo->rx_freeq, false); |
| 1053 | brcmf_usb_free_q(&devinfo->tx_freeq, false); |
| 1054 | |
| 1055 | usb_free_urb(devinfo->intr_urb); |
| 1056 | usb_free_urb(devinfo->ctl_urb); |
| 1057 | usb_free_urb(devinfo->bulk_urb); |
| 1058 | |
| 1059 | kfree(devinfo->tx_reqs); |
| 1060 | kfree(devinfo->rx_reqs); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1061 | } |
| 1062 | |
| 1063 | #define TRX_MAGIC 0x30524448 /* "HDR0" */ |
| 1064 | #define TRX_VERSION 1 /* Version 1 */ |
| 1065 | #define TRX_MAX_LEN 0x3B0000 /* Max length */ |
| 1066 | #define TRX_NO_HEADER 1 /* Do not write TRX header */ |
| 1067 | #define TRX_MAX_OFFSET 3 /* Max number of individual files */ |
| 1068 | #define TRX_UNCOMP_IMAGE 0x20 /* Trx contains uncompressed image */ |
| 1069 | |
| 1070 | struct trx_header_le { |
| 1071 | __le32 magic; /* "HDR0" */ |
| 1072 | __le32 len; /* Length of file including header */ |
| 1073 | __le32 crc32; /* CRC from flag_version to end of file */ |
| 1074 | __le32 flag_version; /* 0:15 flags, 16:31 version */ |
| 1075 | __le32 offsets[TRX_MAX_OFFSET]; /* Offsets of partitions from start of |
| 1076 | * header */ |
| 1077 | }; |
| 1078 | |
| 1079 | static int check_file(const u8 *headers) |
| 1080 | { |
| 1081 | struct trx_header_le *trx; |
| 1082 | int actual_len = -1; |
| 1083 | |
Hante Meuleman | cb8b73d | 2012-11-05 16:22:31 -0800 | [diff] [blame] | 1084 | brcmf_dbg(USB, "Enter\n"); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1085 | /* Extract trx header */ |
| 1086 | trx = (struct trx_header_le *) headers; |
| 1087 | if (trx->magic != cpu_to_le32(TRX_MAGIC)) |
| 1088 | return -1; |
| 1089 | |
| 1090 | headers += sizeof(struct trx_header_le); |
| 1091 | |
| 1092 | if (le32_to_cpu(trx->flag_version) & TRX_UNCOMP_IMAGE) { |
| 1093 | actual_len = le32_to_cpu(trx->offsets[TRX_OFFSETS_DLFWLEN_IDX]); |
| 1094 | return actual_len + sizeof(struct trx_header_le); |
| 1095 | } |
| 1096 | return -1; |
| 1097 | } |
| 1098 | |
| 1099 | static int brcmf_usb_get_fw(struct brcmf_usbdev_info *devinfo) |
| 1100 | { |
| 1101 | s8 *fwname; |
| 1102 | const struct firmware *fw; |
Hante Meuleman | 803599d | 2012-09-19 22:21:10 +0200 | [diff] [blame] | 1103 | struct brcmf_usb_image *fw_image; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1104 | int err; |
| 1105 | |
Hante Meuleman | cb8b73d | 2012-11-05 16:22:31 -0800 | [diff] [blame] | 1106 | brcmf_dbg(USB, "Enter\n"); |
Hante Meuleman | 1212d37 | 2012-08-30 19:43:00 +0200 | [diff] [blame] | 1107 | switch (devinfo->bus_pub.devid) { |
Hante Meuleman | 70f0822 | 2012-08-30 19:43:01 +0200 | [diff] [blame] | 1108 | case 43143: |
| 1109 | fwname = BRCMF_USB_43143_FW_NAME; |
| 1110 | break; |
Hante Meuleman | 1212d37 | 2012-08-30 19:43:00 +0200 | [diff] [blame] | 1111 | case 43235: |
| 1112 | case 43236: |
| 1113 | case 43238: |
| 1114 | fwname = BRCMF_USB_43236_FW_NAME; |
| 1115 | break; |
| 1116 | case 43242: |
| 1117 | fwname = BRCMF_USB_43242_FW_NAME; |
| 1118 | break; |
| 1119 | default: |
| 1120 | return -EINVAL; |
| 1121 | break; |
| 1122 | } |
Hante Meuleman | cb8b73d | 2012-11-05 16:22:31 -0800 | [diff] [blame] | 1123 | brcmf_dbg(USB, "Loading FW %s\n", fwname); |
Hante Meuleman | 803599d | 2012-09-19 22:21:10 +0200 | [diff] [blame] | 1124 | list_for_each_entry(fw_image, &fw_image_list, list) { |
| 1125 | if (fw_image->fwname == fwname) { |
| 1126 | devinfo->image = fw_image->image; |
| 1127 | devinfo->image_len = fw_image->image_len; |
| 1128 | return 0; |
| 1129 | } |
| 1130 | } |
| 1131 | /* fw image not yet loaded. Load it now and add to list */ |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1132 | err = request_firmware(&fw, fwname, devinfo->dev); |
| 1133 | if (!fw) { |
Arend van Spriel | 5e8149f | 2012-12-07 10:49:57 +0100 | [diff] [blame] | 1134 | brcmf_err("fail to request firmware %s\n", fwname); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1135 | return err; |
| 1136 | } |
| 1137 | if (check_file(fw->data) < 0) { |
Arend van Spriel | 5e8149f | 2012-12-07 10:49:57 +0100 | [diff] [blame] | 1138 | brcmf_err("invalid firmware %s\n", fwname); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1139 | return -EINVAL; |
| 1140 | } |
| 1141 | |
Hante Meuleman | 803599d | 2012-09-19 22:21:10 +0200 | [diff] [blame] | 1142 | fw_image = kzalloc(sizeof(*fw_image), GFP_ATOMIC); |
| 1143 | if (!fw_image) |
| 1144 | return -ENOMEM; |
| 1145 | INIT_LIST_HEAD(&fw_image->list); |
| 1146 | list_add_tail(&fw_image->list, &fw_image_list); |
| 1147 | fw_image->fwname = fwname; |
| 1148 | fw_image->image = vmalloc(fw->size); |
| 1149 | if (!fw_image->image) |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1150 | return -ENOMEM; |
| 1151 | |
Hante Meuleman | 803599d | 2012-09-19 22:21:10 +0200 | [diff] [blame] | 1152 | memcpy(fw_image->image, fw->data, fw->size); |
| 1153 | fw_image->image_len = fw->size; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1154 | |
| 1155 | release_firmware(fw); |
Hante Meuleman | 803599d | 2012-09-19 22:21:10 +0200 | [diff] [blame] | 1156 | |
| 1157 | devinfo->image = fw_image->image; |
| 1158 | devinfo->image_len = fw_image->image_len; |
| 1159 | |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1160 | return 0; |
| 1161 | } |
| 1162 | |
| 1163 | |
| 1164 | static |
Hante Meuleman | d74a0b5 | 2012-09-11 21:18:51 +0200 | [diff] [blame] | 1165 | struct brcmf_usbdev *brcmf_usb_attach(struct brcmf_usbdev_info *devinfo, |
| 1166 | int nrxq, int ntxq) |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1167 | { |
Hante Meuleman | cb8b73d | 2012-11-05 16:22:31 -0800 | [diff] [blame] | 1168 | brcmf_dbg(USB, "Enter\n"); |
| 1169 | |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1170 | devinfo->bus_pub.nrxq = nrxq; |
| 1171 | devinfo->rx_low_watermark = nrxq / 2; |
| 1172 | devinfo->bus_pub.devinfo = devinfo; |
| 1173 | devinfo->bus_pub.ntxq = ntxq; |
Hante Meuleman | 7c38e69 | 2012-11-14 18:46:07 -0800 | [diff] [blame] | 1174 | devinfo->bus_pub.state = BRCMFMAC_USB_STATE_DOWN; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1175 | |
| 1176 | /* flow control when too many tx urbs posted */ |
| 1177 | devinfo->tx_low_watermark = ntxq / 4; |
| 1178 | devinfo->tx_high_watermark = devinfo->tx_low_watermark * 3; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1179 | devinfo->bus_pub.bus_mtu = BRCMF_USB_MAX_PKT_SIZE; |
| 1180 | |
| 1181 | /* Initialize other structure content */ |
| 1182 | init_waitqueue_head(&devinfo->ioctl_resp_wait); |
| 1183 | |
| 1184 | /* Initialize the spinlocks */ |
| 1185 | spin_lock_init(&devinfo->qlock); |
| 1186 | |
| 1187 | INIT_LIST_HEAD(&devinfo->rx_freeq); |
| 1188 | INIT_LIST_HEAD(&devinfo->rx_postq); |
| 1189 | |
| 1190 | INIT_LIST_HEAD(&devinfo->tx_freeq); |
| 1191 | INIT_LIST_HEAD(&devinfo->tx_postq); |
| 1192 | |
Hante Meuleman | c6ab429 | 2012-09-11 21:18:48 +0200 | [diff] [blame] | 1193 | devinfo->tx_flowblock = false; |
| 1194 | |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1195 | devinfo->rx_reqs = brcmf_usbdev_qinit(&devinfo->rx_freeq, nrxq); |
| 1196 | if (!devinfo->rx_reqs) |
| 1197 | goto error; |
| 1198 | |
| 1199 | devinfo->tx_reqs = brcmf_usbdev_qinit(&devinfo->tx_freeq, ntxq); |
| 1200 | if (!devinfo->tx_reqs) |
| 1201 | goto error; |
Hante Meuleman | c6ab429 | 2012-09-11 21:18:48 +0200 | [diff] [blame] | 1202 | devinfo->tx_freecount = ntxq; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1203 | |
| 1204 | devinfo->intr_urb = usb_alloc_urb(0, GFP_ATOMIC); |
| 1205 | if (!devinfo->intr_urb) { |
Arend van Spriel | 5e8149f | 2012-12-07 10:49:57 +0100 | [diff] [blame] | 1206 | brcmf_err("usb_alloc_urb (intr) failed\n"); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1207 | goto error; |
| 1208 | } |
| 1209 | devinfo->ctl_urb = usb_alloc_urb(0, GFP_ATOMIC); |
| 1210 | if (!devinfo->ctl_urb) { |
Arend van Spriel | 5e8149f | 2012-12-07 10:49:57 +0100 | [diff] [blame] | 1211 | brcmf_err("usb_alloc_urb (ctl) failed\n"); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1212 | goto error; |
| 1213 | } |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1214 | devinfo->bulk_urb = usb_alloc_urb(0, GFP_ATOMIC); |
| 1215 | if (!devinfo->bulk_urb) { |
Arend van Spriel | 5e8149f | 2012-12-07 10:49:57 +0100 | [diff] [blame] | 1216 | brcmf_err("usb_alloc_urb (bulk) failed\n"); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1217 | goto error; |
| 1218 | } |
| 1219 | |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1220 | if (!brcmf_usb_dlneeded(devinfo)) |
| 1221 | return &devinfo->bus_pub; |
| 1222 | |
Hante Meuleman | cb8b73d | 2012-11-05 16:22:31 -0800 | [diff] [blame] | 1223 | brcmf_dbg(USB, "Start fw downloading\n"); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1224 | if (brcmf_usb_get_fw(devinfo)) |
| 1225 | goto error; |
| 1226 | |
| 1227 | if (brcmf_usb_fw_download(devinfo)) |
| 1228 | goto error; |
| 1229 | |
| 1230 | return &devinfo->bus_pub; |
| 1231 | |
| 1232 | error: |
Arend van Spriel | 5e8149f | 2012-12-07 10:49:57 +0100 | [diff] [blame] | 1233 | brcmf_err("failed!\n"); |
Hante Meuleman | d74a0b5 | 2012-09-11 21:18:51 +0200 | [diff] [blame] | 1234 | brcmf_usb_detach(devinfo); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1235 | return NULL; |
| 1236 | } |
| 1237 | |
Arend van Spriel | d9cb259 | 2012-12-05 15:25:54 +0100 | [diff] [blame] | 1238 | static struct brcmf_bus_ops brcmf_usb_bus_ops = { |
| 1239 | .txdata = brcmf_usb_tx, |
| 1240 | .init = brcmf_usb_up, |
| 1241 | .stop = brcmf_usb_down, |
| 1242 | .txctl = brcmf_usb_tx_ctlpkt, |
| 1243 | .rxctl = brcmf_usb_rx_ctlpkt, |
| 1244 | }; |
| 1245 | |
Hante Meuleman | b87e2c4 | 2012-11-14 18:46:23 -0800 | [diff] [blame] | 1246 | static int brcmf_usb_probe_cb(struct brcmf_usbdev_info *devinfo) |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1247 | { |
| 1248 | struct brcmf_bus *bus = NULL; |
| 1249 | struct brcmf_usbdev *bus_pub = NULL; |
| 1250 | int ret; |
Hante Meuleman | d74a0b5 | 2012-09-11 21:18:51 +0200 | [diff] [blame] | 1251 | struct device *dev = devinfo->dev; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1252 | |
Hante Meuleman | cb8b73d | 2012-11-05 16:22:31 -0800 | [diff] [blame] | 1253 | brcmf_dbg(USB, "Enter\n"); |
Hante Meuleman | d74a0b5 | 2012-09-11 21:18:51 +0200 | [diff] [blame] | 1254 | bus_pub = brcmf_usb_attach(devinfo, BRCMF_USB_NRXQ, BRCMF_USB_NTXQ); |
Hante Meuleman | 9cd23a7 | 2012-09-13 21:12:04 +0200 | [diff] [blame] | 1255 | if (!bus_pub) |
| 1256 | return -ENODEV; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1257 | |
| 1258 | bus = kzalloc(sizeof(struct brcmf_bus), GFP_ATOMIC); |
| 1259 | if (!bus) { |
| 1260 | ret = -ENOMEM; |
| 1261 | goto fail; |
| 1262 | } |
| 1263 | |
Arend van Spriel | d9cb259 | 2012-12-05 15:25:54 +0100 | [diff] [blame] | 1264 | bus->dev = dev; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1265 | bus_pub->bus = bus; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1266 | bus->bus_priv.usb = bus_pub; |
| 1267 | dev_set_drvdata(dev, bus); |
Arend van Spriel | d9cb259 | 2012-12-05 15:25:54 +0100 | [diff] [blame] | 1268 | bus->ops = &brcmf_usb_bus_ops; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1269 | |
| 1270 | /* Attach to the common driver interface */ |
Hante Meuleman | b87e2c4 | 2012-11-14 18:46:23 -0800 | [diff] [blame] | 1271 | ret = brcmf_attach(0, dev); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1272 | if (ret) { |
Arend van Spriel | 5e8149f | 2012-12-07 10:49:57 +0100 | [diff] [blame] | 1273 | brcmf_err("brcmf_attach failed\n"); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1274 | goto fail; |
| 1275 | } |
| 1276 | |
| 1277 | ret = brcmf_bus_start(dev); |
Hante Meuleman | e270b30 | 2012-10-10 11:13:06 -0700 | [diff] [blame] | 1278 | if (ret) { |
Arend van Spriel | 5e8149f | 2012-12-07 10:49:57 +0100 | [diff] [blame] | 1279 | brcmf_err("dongle is not responding\n"); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1280 | brcmf_detach(dev); |
| 1281 | goto fail; |
| 1282 | } |
| 1283 | |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1284 | return 0; |
| 1285 | fail: |
| 1286 | /* Release resources in reverse order */ |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1287 | kfree(bus); |
Hante Meuleman | d74a0b5 | 2012-09-11 21:18:51 +0200 | [diff] [blame] | 1288 | brcmf_usb_detach(devinfo); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1289 | return ret; |
| 1290 | } |
| 1291 | |
| 1292 | static void |
Hante Meuleman | d74a0b5 | 2012-09-11 21:18:51 +0200 | [diff] [blame] | 1293 | brcmf_usb_disconnect_cb(struct brcmf_usbdev_info *devinfo) |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1294 | { |
Hante Meuleman | d74a0b5 | 2012-09-11 21:18:51 +0200 | [diff] [blame] | 1295 | if (!devinfo) |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1296 | return; |
Hante Meuleman | cb8b73d | 2012-11-05 16:22:31 -0800 | [diff] [blame] | 1297 | brcmf_dbg(USB, "Enter, bus_pub %p\n", devinfo); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1298 | |
Hante Meuleman | d74a0b5 | 2012-09-11 21:18:51 +0200 | [diff] [blame] | 1299 | brcmf_detach(devinfo->dev); |
| 1300 | kfree(devinfo->bus_pub.bus); |
| 1301 | brcmf_usb_detach(devinfo); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1302 | } |
| 1303 | |
| 1304 | static int |
| 1305 | brcmf_usb_probe(struct usb_interface *intf, const struct usb_device_id *id) |
| 1306 | { |
| 1307 | int ep; |
| 1308 | struct usb_endpoint_descriptor *endpoint; |
| 1309 | int ret = 0; |
| 1310 | struct usb_device *usb = interface_to_usbdev(intf); |
| 1311 | int num_of_eps; |
| 1312 | u8 endpoint_num; |
Hante Meuleman | d74a0b5 | 2012-09-11 21:18:51 +0200 | [diff] [blame] | 1313 | struct brcmf_usbdev_info *devinfo; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1314 | |
Hante Meuleman | cb8b73d | 2012-11-05 16:22:31 -0800 | [diff] [blame] | 1315 | brcmf_dbg(USB, "Enter\n"); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1316 | |
Hante Meuleman | d74a0b5 | 2012-09-11 21:18:51 +0200 | [diff] [blame] | 1317 | devinfo = kzalloc(sizeof(*devinfo), GFP_ATOMIC); |
| 1318 | if (devinfo == NULL) |
| 1319 | return -ENOMEM; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1320 | |
Hante Meuleman | d74a0b5 | 2012-09-11 21:18:51 +0200 | [diff] [blame] | 1321 | devinfo->usbdev = usb; |
| 1322 | devinfo->dev = &usb->dev; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1323 | |
Hante Meuleman | d74a0b5 | 2012-09-11 21:18:51 +0200 | [diff] [blame] | 1324 | usb_set_intfdata(intf, devinfo); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1325 | |
| 1326 | /* Check that the device supports only one configuration */ |
| 1327 | if (usb->descriptor.bNumConfigurations != 1) { |
| 1328 | ret = -1; |
| 1329 | goto fail; |
| 1330 | } |
| 1331 | |
| 1332 | if (usb->descriptor.bDeviceClass != USB_CLASS_VENDOR_SPEC) { |
| 1333 | ret = -1; |
| 1334 | goto fail; |
| 1335 | } |
| 1336 | |
| 1337 | /* |
| 1338 | * Only the BDC interface configuration is supported: |
| 1339 | * Device class: USB_CLASS_VENDOR_SPEC |
| 1340 | * if0 class: USB_CLASS_VENDOR_SPEC |
| 1341 | * if0/ep0: control |
| 1342 | * if0/ep1: bulk in |
| 1343 | * if0/ep2: bulk out (ok if swapped with bulk in) |
| 1344 | */ |
| 1345 | if (CONFIGDESC(usb)->bNumInterfaces != 1) { |
| 1346 | ret = -1; |
| 1347 | goto fail; |
| 1348 | } |
| 1349 | |
| 1350 | /* Check interface */ |
| 1351 | if (IFDESC(usb, CONTROL_IF).bInterfaceClass != USB_CLASS_VENDOR_SPEC || |
| 1352 | IFDESC(usb, CONTROL_IF).bInterfaceSubClass != 2 || |
| 1353 | IFDESC(usb, CONTROL_IF).bInterfaceProtocol != 0xff) { |
Arend van Spriel | 5e8149f | 2012-12-07 10:49:57 +0100 | [diff] [blame] | 1354 | brcmf_err("invalid control interface: class %d, subclass %d, proto %d\n", |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1355 | IFDESC(usb, CONTROL_IF).bInterfaceClass, |
| 1356 | IFDESC(usb, CONTROL_IF).bInterfaceSubClass, |
| 1357 | IFDESC(usb, CONTROL_IF).bInterfaceProtocol); |
| 1358 | ret = -1; |
| 1359 | goto fail; |
| 1360 | } |
| 1361 | |
| 1362 | /* Check control endpoint */ |
| 1363 | endpoint = &IFEPDESC(usb, CONTROL_IF, 0); |
| 1364 | if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) |
| 1365 | != USB_ENDPOINT_XFER_INT) { |
Arend van Spriel | 5e8149f | 2012-12-07 10:49:57 +0100 | [diff] [blame] | 1366 | brcmf_err("invalid control endpoint %d\n", |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1367 | endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK); |
| 1368 | ret = -1; |
| 1369 | goto fail; |
| 1370 | } |
| 1371 | |
| 1372 | endpoint_num = endpoint->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK; |
Hante Meuleman | d74a0b5 | 2012-09-11 21:18:51 +0200 | [diff] [blame] | 1373 | devinfo->intr_pipe = usb_rcvintpipe(usb, endpoint_num); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1374 | |
Hante Meuleman | d74a0b5 | 2012-09-11 21:18:51 +0200 | [diff] [blame] | 1375 | devinfo->rx_pipe = 0; |
| 1376 | devinfo->rx_pipe2 = 0; |
| 1377 | devinfo->tx_pipe = 0; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1378 | num_of_eps = IFDESC(usb, BULK_IF).bNumEndpoints - 1; |
| 1379 | |
| 1380 | /* Check data endpoints and get pipes */ |
| 1381 | for (ep = 1; ep <= num_of_eps; ep++) { |
| 1382 | endpoint = &IFEPDESC(usb, BULK_IF, ep); |
| 1383 | if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != |
| 1384 | USB_ENDPOINT_XFER_BULK) { |
Arend van Spriel | 5e8149f | 2012-12-07 10:49:57 +0100 | [diff] [blame] | 1385 | brcmf_err("invalid data endpoint %d\n", ep); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1386 | ret = -1; |
| 1387 | goto fail; |
| 1388 | } |
| 1389 | |
| 1390 | endpoint_num = endpoint->bEndpointAddress & |
| 1391 | USB_ENDPOINT_NUMBER_MASK; |
| 1392 | if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) |
| 1393 | == USB_DIR_IN) { |
Hante Meuleman | d74a0b5 | 2012-09-11 21:18:51 +0200 | [diff] [blame] | 1394 | if (!devinfo->rx_pipe) { |
| 1395 | devinfo->rx_pipe = |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1396 | usb_rcvbulkpipe(usb, endpoint_num); |
| 1397 | } else { |
Hante Meuleman | d74a0b5 | 2012-09-11 21:18:51 +0200 | [diff] [blame] | 1398 | devinfo->rx_pipe2 = |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1399 | usb_rcvbulkpipe(usb, endpoint_num); |
| 1400 | } |
| 1401 | } else { |
Hante Meuleman | d74a0b5 | 2012-09-11 21:18:51 +0200 | [diff] [blame] | 1402 | devinfo->tx_pipe = usb_sndbulkpipe(usb, endpoint_num); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1403 | } |
| 1404 | } |
| 1405 | |
| 1406 | /* Allocate interrupt URB and data buffer */ |
| 1407 | /* RNDIS says 8-byte intr, our old drivers used 4-byte */ |
| 1408 | if (IFEPDESC(usb, CONTROL_IF, 0).wMaxPacketSize == cpu_to_le16(16)) |
Hante Meuleman | d74a0b5 | 2012-09-11 21:18:51 +0200 | [diff] [blame] | 1409 | devinfo->intr_size = 8; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1410 | else |
Hante Meuleman | d74a0b5 | 2012-09-11 21:18:51 +0200 | [diff] [blame] | 1411 | devinfo->intr_size = 4; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1412 | |
Hante Meuleman | d74a0b5 | 2012-09-11 21:18:51 +0200 | [diff] [blame] | 1413 | devinfo->interval = IFEPDESC(usb, CONTROL_IF, 0).bInterval; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1414 | |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1415 | if (usb->speed == USB_SPEED_HIGH) |
Hante Meuleman | cb8b73d | 2012-11-05 16:22:31 -0800 | [diff] [blame] | 1416 | brcmf_dbg(USB, "Broadcom high speed USB wireless device detected\n"); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1417 | else |
Hante Meuleman | cb8b73d | 2012-11-05 16:22:31 -0800 | [diff] [blame] | 1418 | brcmf_dbg(USB, "Broadcom full speed USB wireless device detected\n"); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1419 | |
Hante Meuleman | b87e2c4 | 2012-11-14 18:46:23 -0800 | [diff] [blame] | 1420 | ret = brcmf_usb_probe_cb(devinfo); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1421 | if (ret) |
| 1422 | goto fail; |
| 1423 | |
| 1424 | /* Success */ |
| 1425 | return 0; |
| 1426 | |
| 1427 | fail: |
Arend van Spriel | 5e8149f | 2012-12-07 10:49:57 +0100 | [diff] [blame] | 1428 | brcmf_err("failed with errno %d\n", ret); |
Hante Meuleman | d74a0b5 | 2012-09-11 21:18:51 +0200 | [diff] [blame] | 1429 | kfree(devinfo); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1430 | usb_set_intfdata(intf, NULL); |
| 1431 | return ret; |
| 1432 | |
| 1433 | } |
| 1434 | |
| 1435 | static void |
| 1436 | brcmf_usb_disconnect(struct usb_interface *intf) |
| 1437 | { |
Hante Meuleman | d74a0b5 | 2012-09-11 21:18:51 +0200 | [diff] [blame] | 1438 | struct brcmf_usbdev_info *devinfo; |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1439 | |
Hante Meuleman | cb8b73d | 2012-11-05 16:22:31 -0800 | [diff] [blame] | 1440 | brcmf_dbg(USB, "Enter\n"); |
Hante Meuleman | d74a0b5 | 2012-09-11 21:18:51 +0200 | [diff] [blame] | 1441 | devinfo = (struct brcmf_usbdev_info *)usb_get_intfdata(intf); |
| 1442 | brcmf_usb_disconnect_cb(devinfo); |
| 1443 | kfree(devinfo); |
Hante Meuleman | cb8b73d | 2012-11-05 16:22:31 -0800 | [diff] [blame] | 1444 | brcmf_dbg(USB, "Exit\n"); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1445 | } |
| 1446 | |
| 1447 | /* |
Hante Meuleman | 7c38e69 | 2012-11-14 18:46:07 -0800 | [diff] [blame] | 1448 | * only need to signal the bus being down and update the state. |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1449 | */ |
| 1450 | static int brcmf_usb_suspend(struct usb_interface *intf, pm_message_t state) |
| 1451 | { |
| 1452 | struct usb_device *usb = interface_to_usbdev(intf); |
| 1453 | struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(&usb->dev); |
| 1454 | |
Hante Meuleman | cb8b73d | 2012-11-05 16:22:31 -0800 | [diff] [blame] | 1455 | brcmf_dbg(USB, "Enter\n"); |
Hante Meuleman | 7c38e69 | 2012-11-14 18:46:07 -0800 | [diff] [blame] | 1456 | devinfo->bus_pub.state = BRCMFMAC_USB_STATE_SLEEP; |
| 1457 | brcmf_detach(&usb->dev); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1458 | return 0; |
| 1459 | } |
| 1460 | |
| 1461 | /* |
Hante Meuleman | 7c38e69 | 2012-11-14 18:46:07 -0800 | [diff] [blame] | 1462 | * (re-) start the bus. |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1463 | */ |
| 1464 | static int brcmf_usb_resume(struct usb_interface *intf) |
| 1465 | { |
| 1466 | struct usb_device *usb = interface_to_usbdev(intf); |
| 1467 | struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(&usb->dev); |
| 1468 | |
Hante Meuleman | cb8b73d | 2012-11-05 16:22:31 -0800 | [diff] [blame] | 1469 | brcmf_dbg(USB, "Enter\n"); |
Hante Meuleman | 7c38e69 | 2012-11-14 18:46:07 -0800 | [diff] [blame] | 1470 | if (!brcmf_attach(0, devinfo->dev)) |
| 1471 | return brcmf_bus_start(&usb->dev); |
| 1472 | |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1473 | return 0; |
| 1474 | } |
| 1475 | |
Hante Meuleman | 7c38e69 | 2012-11-14 18:46:07 -0800 | [diff] [blame] | 1476 | static int brcmf_usb_reset_resume(struct usb_interface *intf) |
| 1477 | { |
| 1478 | struct usb_device *usb = interface_to_usbdev(intf); |
| 1479 | struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(&usb->dev); |
| 1480 | |
| 1481 | brcmf_dbg(USB, "Enter\n"); |
| 1482 | |
| 1483 | if (!brcmf_usb_fw_download(devinfo)) |
| 1484 | return brcmf_usb_resume(intf); |
| 1485 | |
| 1486 | return -EIO; |
| 1487 | } |
| 1488 | |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1489 | #define BRCMF_USB_VENDOR_ID_BROADCOM 0x0a5c |
Hante Meuleman | 70f0822 | 2012-08-30 19:43:01 +0200 | [diff] [blame] | 1490 | #define BRCMF_USB_DEVICE_ID_43143 0xbd1e |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1491 | #define BRCMF_USB_DEVICE_ID_43236 0xbd17 |
Hante Meuleman | 1212d37 | 2012-08-30 19:43:00 +0200 | [diff] [blame] | 1492 | #define BRCMF_USB_DEVICE_ID_43242 0xbd1f |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1493 | #define BRCMF_USB_DEVICE_ID_BCMFW 0x0bdc |
| 1494 | |
| 1495 | static struct usb_device_id brcmf_usb_devid_table[] = { |
Hante Meuleman | 70f0822 | 2012-08-30 19:43:01 +0200 | [diff] [blame] | 1496 | { USB_DEVICE(BRCMF_USB_VENDOR_ID_BROADCOM, BRCMF_USB_DEVICE_ID_43143) }, |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1497 | { USB_DEVICE(BRCMF_USB_VENDOR_ID_BROADCOM, BRCMF_USB_DEVICE_ID_43236) }, |
Hante Meuleman | 1212d37 | 2012-08-30 19:43:00 +0200 | [diff] [blame] | 1498 | { USB_DEVICE(BRCMF_USB_VENDOR_ID_BROADCOM, BRCMF_USB_DEVICE_ID_43242) }, |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1499 | /* special entry for device with firmware loaded and running */ |
| 1500 | { USB_DEVICE(BRCMF_USB_VENDOR_ID_BROADCOM, BRCMF_USB_DEVICE_ID_BCMFW) }, |
| 1501 | { } |
| 1502 | }; |
| 1503 | MODULE_DEVICE_TABLE(usb, brcmf_usb_devid_table); |
Hante Meuleman | 70f0822 | 2012-08-30 19:43:01 +0200 | [diff] [blame] | 1504 | MODULE_FIRMWARE(BRCMF_USB_43143_FW_NAME); |
Rafał Miłecki | fda8241 | 2012-02-24 07:22:51 +0100 | [diff] [blame] | 1505 | MODULE_FIRMWARE(BRCMF_USB_43236_FW_NAME); |
Hante Meuleman | 1212d37 | 2012-08-30 19:43:00 +0200 | [diff] [blame] | 1506 | MODULE_FIRMWARE(BRCMF_USB_43242_FW_NAME); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1507 | |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1508 | static struct usb_driver brcmf_usbdrvr = { |
| 1509 | .name = KBUILD_MODNAME, |
| 1510 | .probe = brcmf_usb_probe, |
| 1511 | .disconnect = brcmf_usb_disconnect, |
| 1512 | .id_table = brcmf_usb_devid_table, |
| 1513 | .suspend = brcmf_usb_suspend, |
| 1514 | .resume = brcmf_usb_resume, |
Hante Meuleman | 7c38e69 | 2012-11-14 18:46:07 -0800 | [diff] [blame] | 1515 | .reset_resume = brcmf_usb_reset_resume, |
Sarah Sharp | c51fa66 | 2012-05-21 05:34:24 -0700 | [diff] [blame] | 1516 | .supports_autosuspend = 1, |
Sarah Sharp | e1f12eb | 2012-04-23 10:08:51 -0700 | [diff] [blame] | 1517 | .disable_hub_initiated_lpm = 1, |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1518 | }; |
| 1519 | |
Hante Meuleman | 803599d | 2012-09-19 22:21:10 +0200 | [diff] [blame] | 1520 | static void brcmf_release_fw(struct list_head *q) |
| 1521 | { |
| 1522 | struct brcmf_usb_image *fw_image, *next; |
| 1523 | |
| 1524 | list_for_each_entry_safe(fw_image, next, q, list) { |
| 1525 | vfree(fw_image->image); |
| 1526 | list_del_init(&fw_image->list); |
| 1527 | } |
| 1528 | } |
| 1529 | |
Arend van Spriel | 81d5f1b | 2013-01-02 15:22:40 +0100 | [diff] [blame] | 1530 | static int brcmf_usb_reset_device(struct device *dev, void *notused) |
| 1531 | { |
| 1532 | /* device past is the usb interface so we |
| 1533 | * need to use parent here. |
| 1534 | */ |
| 1535 | brcmf_dev_reset(dev->parent); |
| 1536 | return 0; |
| 1537 | } |
Hante Meuleman | 803599d | 2012-09-19 22:21:10 +0200 | [diff] [blame] | 1538 | |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1539 | void brcmf_usb_exit(void) |
| 1540 | { |
Arend van Spriel | 81d5f1b | 2013-01-02 15:22:40 +0100 | [diff] [blame] | 1541 | struct device_driver *drv = &brcmf_usbdrvr.drvwrap.driver; |
| 1542 | int ret; |
| 1543 | |
Hante Meuleman | cb8b73d | 2012-11-05 16:22:31 -0800 | [diff] [blame] | 1544 | brcmf_dbg(USB, "Enter\n"); |
Arend van Spriel | 81d5f1b | 2013-01-02 15:22:40 +0100 | [diff] [blame] | 1545 | ret = driver_for_each_device(drv, NULL, NULL, |
| 1546 | brcmf_usb_reset_device); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1547 | usb_deregister(&brcmf_usbdrvr); |
Hante Meuleman | 803599d | 2012-09-19 22:21:10 +0200 | [diff] [blame] | 1548 | brcmf_release_fw(&fw_image_list); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1549 | } |
| 1550 | |
Arend van Spriel | 549040a | 2012-03-02 22:55:48 +0100 | [diff] [blame] | 1551 | void brcmf_usb_init(void) |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1552 | { |
Hante Meuleman | cb8b73d | 2012-11-05 16:22:31 -0800 | [diff] [blame] | 1553 | brcmf_dbg(USB, "Enter\n"); |
Hante Meuleman | 803599d | 2012-09-19 22:21:10 +0200 | [diff] [blame] | 1554 | INIT_LIST_HEAD(&fw_image_list); |
Arend van Spriel | 549040a | 2012-03-02 22:55:48 +0100 | [diff] [blame] | 1555 | usb_register(&brcmf_usbdrvr); |
Arend van Spriel | 71bb244 | 2012-02-09 21:09:08 +0100 | [diff] [blame] | 1556 | } |