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| 1 | /* | |||
| 2 | * | |||
| 3 | * Broadcom Blutonium firmware driver | |||
| 4 | * | |||
| 5 | * Copyright (C) 2003 Maxim Krasnyansky <maxk@qualcomm.com> | |||
| 6 | * Copyright (C) 2003 Marcel Holtmann <marcel@holtmann.org> | |||
| 7 | * | |||
| 8 | * | |||
| 9 | * This program is free software; you can redistribute it and/or modify | |||
| 10 | * it under the terms of the GNU General Public License as published by | |||
| 11 | * the Free Software Foundation; either version 2 of the License, or | |||
| 12 | * (at your option) any later version. | |||
| 13 | * | |||
| 14 | * This program is distributed in the hope that it will be useful, | |||
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |||
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |||
| 17 | * GNU General Public License for more details. | |||
| 18 | * | |||
| 19 | * You should have received a copy of the GNU General Public License | |||
| 20 | * along with this program; if not, write to the Free Software | |||
| 21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |||
| 22 | * | |||
| 23 | */ | |||
| 24 | ||||
| 25 | #include <linux/config.h> | |||
| 26 | #include <linux/module.h> | |||
| 27 | ||||
| 28 | #include <linux/kernel.h> | |||
| 29 | #include <linux/init.h> | |||
| 30 | #include <linux/slab.h> | |||
| 31 | #include <linux/types.h> | |||
| 32 | #include <linux/errno.h> | |||
| 33 | #include <linux/timer.h> | |||
| 34 | ||||
| 35 | #include <linux/device.h> | |||
| 36 | #include <linux/firmware.h> | |||
| 37 | ||||
| 38 | #include <linux/usb.h> | |||
| 39 | ||||
| 40 | #include <net/bluetooth/bluetooth.h> | |||
| 41 | ||||
| 42 | #ifndef CONFIG_BT_HCIBCM203X_DEBUG | |||
| 43 | #undef BT_DBG | |||
| 44 | #define BT_DBG(D...) | |||
| 45 | #endif | |||
| 46 | ||||
| 47 | #define VERSION "1.0" | |||
| 48 | ||||
| 49 | static int ignore = 0; | |||
| 50 | ||||
| 51 | static struct usb_device_id bcm203x_table[] = { | |||
| 52 | /* Broadcom Blutonium (BCM2033) */ | |||
| 53 | { USB_DEVICE(0x0a5c, 0x2033) }, | |||
| 54 | ||||
| 55 | { } /* Terminating entry */ | |||
| 56 | }; | |||
| 57 | ||||
| 58 | MODULE_DEVICE_TABLE(usb, bcm203x_table); | |||
| 59 | ||||
| 60 | #define BCM203X_ERROR 0 | |||
| 61 | #define BCM203X_RESET 1 | |||
| 62 | #define BCM203X_LOAD_MINIDRV 2 | |||
| 63 | #define BCM203X_SELECT_MEMORY 3 | |||
| 64 | #define BCM203X_CHECK_MEMORY 4 | |||
| 65 | #define BCM203X_LOAD_FIRMWARE 5 | |||
| 66 | #define BCM203X_CHECK_FIRMWARE 6 | |||
| 67 | ||||
| 68 | #define BCM203X_IN_EP 0x81 | |||
| 69 | #define BCM203X_OUT_EP 0x02 | |||
| 70 | ||||
| 71 | struct bcm203x_data { | |||
| 72 | struct usb_device *udev; | |||
| 73 | ||||
| 74 | unsigned long state; | |||
| 75 | ||||
| 76 | struct timer_list timer; | |||
| 77 | ||||
| 78 | struct urb *urb; | |||
| 79 | unsigned char *buffer; | |||
| 80 | ||||
| 81 | unsigned char *fw_data; | |||
| 82 | unsigned int fw_size; | |||
| 83 | unsigned int fw_sent; | |||
| 84 | }; | |||
| 85 | ||||
| 0 | 0 | - | 86 | static void bcm203x_complete(struct urb *urb, struct pt_regs *regs) |
| 87 | { | |||
| 88 | struct bcm203x_data *data = urb->context; | |||
| 89 | struct usb_device *udev = urb->dev; | |||
| 90 | int len; | |||
| 91 | ||||
| 92 | BT_DBG("udev %p urb %p", udev, urb); | |||
| 93 | ||||
| 0 | 0 | - | 94 | if (urb->status) { |
| 95 | BT_ERR("URB failed with status %d", urb->status); | |||
| 96 | data->state = BCM203X_ERROR; | |||
| 0 | - | 97 | return; | |
| 98 | } | |||
| 99 | ||||
| 100 | switch (data->state) { | |||
| 0 | - | 101 | case BCM203X_LOAD_MINIDRV: | |
| 102 | memcpy(data->buffer, "#", 1); | |||
| 103 | ||||
| 104 | usb_fill_bulk_urb(urb, udev, usb_sndbulkpipe(udev, BCM203X_OUT_EP), | |||
| 105 | data->buffer, 1, bcm203x_complete, data); | |||
| 106 | ||||
| 107 | data->state = BCM203X_SELECT_MEMORY; | |||
| 108 | ||||
| 109 | mod_timer(&data->timer, jiffies + (HZ / 10)); | |||
| 0 | - | 110 | break; | |
| 111 | ||||
| 0 | - | 112 | case BCM203X_SELECT_MEMORY: | |
| 113 | usb_fill_int_urb(urb, udev, usb_rcvintpipe(udev, BCM203X_IN_EP), | |||
| 114 | data->buffer, 32, bcm203x_complete, data, 1); | |||
| 115 | ||||
| 116 | data->state = BCM203X_CHECK_MEMORY; | |||
| 117 | ||||
| 0 | 0 | - | 118 | if (usb_submit_urb(data->urb, GFP_ATOMIC) < 0) |
| 119 | BT_ERR("Can't submit URB"); | |||
| 0 | - | 120 | break; | |
| 121 | ||||
| 0 | - | 122 | case BCM203X_CHECK_MEMORY: | |
| 0 | 0 | - | 123 | if (data->buffer[0] != '#') { |
| 124 | BT_ERR("Memory select failed"); | |||
| 125 | data->state = BCM203X_ERROR; | |||
| 0 | - | 126 | break; | |
| 127 | } | |||
| 128 | ||||
| 129 | data->state = BCM203X_LOAD_FIRMWARE; | |||
| 130 | ||||
| 0 | - | 131 | case BCM203X_LOAD_FIRMWARE: | |
| 0 | 0 | - | 132 | if (data->fw_sent == data->fw_size) { |
| 133 | usb_fill_int_urb(urb, udev, usb_rcvintpipe(udev, BCM203X_IN_EP), | |||
| 134 | data->buffer, 32, bcm203x_complete, data, 1); | |||
| 135 | ||||
| 136 | data->state = BCM203X_CHECK_FIRMWARE; | |||
| 137 | } else { | |||
| 138 | len = min_t(uint, data->fw_size - data->fw_sent, 4096); | |||
| 139 | ||||
| 140 | usb_fill_bulk_urb(urb, udev, usb_sndbulkpipe(udev, BCM203X_OUT_EP), | |||
| 141 | data->fw_data + data->fw_sent, len, bcm203x_complete, data); | |||
| 142 | ||||
| 143 | data->fw_sent += len; | |||
| 144 | } | |||
| 145 | ||||
| 0 | 0 | - | 146 | if (usb_submit_urb(data->urb, GFP_ATOMIC) < 0) |
| 147 | BT_ERR("Can't submit URB"); | |||
| 0 | - | 148 | break; | |
| 149 | ||||
| 0 | - | 150 | case BCM203X_CHECK_FIRMWARE: | |
| 0 | 0 | - | 151 | if (data->buffer[0] != '.') { |
| 152 | BT_ERR("Firmware loading failed"); | |||
| 153 | data->state = BCM203X_ERROR; | |||
| 0 | - | 154 | break; | |
| 155 | } | |||
| 156 | ||||
| 157 | data->state = BCM203X_RESET; | |||
| 0 | - | 158 | break; | |
| 159 | } | |||
| 160 | } | |||
| 161 | ||||
| 0 | 0 | - | 162 | static void bcm203x_timer(unsigned long user_data) |
| 163 | { | |||
| 164 | struct bcm203x_data *data = (struct bcm203x_data *) user_data; | |||
| 165 | ||||
| 0 | 0 | - | 166 | if (usb_submit_urb(data->urb, GFP_ATOMIC) < 0) |
| 167 | BT_ERR("Can't submit URB"); | |||
| 168 | } | |||
| 169 | ||||
| 0 | 0 | - | 170 | static int bcm203x_probe(struct usb_interface *intf, const struct usb_device_id *id) |
| 171 | { | |||
| 172 | const struct firmware *firmware; | |||
| 173 | struct usb_device *udev = interface_to_usbdev(intf); | |||
| 174 | struct bcm203x_data *data; | |||
| 175 | int size; | |||
| 176 | ||||
| 177 | BT_DBG("intf %p id %p", intf, id); | |||
| 178 | ||||
| 0 | 0 | - | 179 | if (ignore || (intf->cur_altsetting->desc.bInterfaceNumber != 0)) |
| 0 | - | 179 | T || (_) | |
| 0 | - | 179 | F || (T) | |
| 0 | - | 179 | F || (F) | |
| 0 | - | 180 | return -ENODEV; | |
| 181 | ||||
| 182 | data = kzalloc(sizeof(*data), GFP_KERNEL); | |||
| 0 | 0 | - | 183 | if (!data) { |
| 184 | BT_ERR("Can't allocate memory for data structure"); | |||
| 0 | - | 185 | return -ENOMEM; | |
| 186 | } | |||
| 187 | ||||
| 188 | data->udev = udev; | |||
| 189 | data->state = BCM203X_LOAD_MINIDRV; | |||
| 190 | ||||
| 191 | data->urb = usb_alloc_urb(0, GFP_KERNEL); | |||
| 0 | 0 | - | 192 | if (!data->urb) { |
| 193 | BT_ERR("Can't allocate URB"); | |||
| 194 | kfree(data); | |||
| 0 | - | 195 | return -ENOMEM; | |
| 196 | } | |||
| 197 | ||||
| 0 | 0 | - | 198 | if (request_firmware(&firmware, "BCM2033-MD.hex", &udev->dev) < 0) { |
| 199 | BT_ERR("Mini driver request failed"); | |||
| 200 | usb_free_urb(data->urb); | |||
| 201 | kfree(data); | |||
| 0 | - | 202 | return -EIO; | |
| 203 | } | |||
| 204 | ||||
| 205 | BT_DBG("minidrv data %p size %d", firmware->data, firmware->size); | |||
| 206 | ||||
| 207 | size = max_t(uint, firmware->size, 4096); | |||
| 208 | ||||
| 209 | data->buffer = kmalloc(size, GFP_KERNEL); | |||
| 0 | 0 | - | 210 | if (!data->buffer) { |
| 211 | BT_ERR("Can't allocate memory for mini driver"); | |||
| 212 | release_firmware(firmware); | |||
| 213 | usb_free_urb(data->urb); | |||
| 214 | kfree(data); | |||
| 0 | - | 215 | return -ENOMEM; | |
| 216 | } | |||
| 217 | ||||
| 218 | memcpy(data->buffer, firmware->data, firmware->size); | |||
| 219 | ||||
| 220 | usb_fill_bulk_urb(data->urb, udev, usb_sndbulkpipe(udev, BCM203X_OUT_EP), | |||
| 221 | data->buffer, firmware->size, bcm203x_complete, data); | |||
| 222 | ||||
| 223 | release_firmware(firmware); | |||
| 224 | ||||
| 0 | 0 | - | 225 | if (request_firmware(&firmware, "BCM2033-FW.bin", &udev->dev) < 0) { |
| 226 | BT_ERR("Firmware request failed"); | |||
| 227 | usb_free_urb(data->urb); | |||
| 228 | kfree(data->buffer); | |||
| 229 | kfree(data); | |||
| 0 | - | 230 | return -EIO; | |
| 231 | } | |||
| 232 | ||||
| 233 | BT_DBG("firmware data %p size %d", firmware->data, firmware->size); | |||
| 234 | ||||
| 235 | data->fw_data = kmalloc(firmware->size, GFP_KERNEL); | |||
| 0 | 0 | - | 236 | if (!data->fw_data) { |
| 237 | BT_ERR("Can't allocate memory for firmware image"); | |||
| 238 | usb_free_urb(data->urb); | |||
| 239 | kfree(data->buffer); | |||
| 240 | kfree(data); | |||
| 0 | - | 241 | return -ENOMEM; | |
| 242 | } | |||
| 243 | ||||
| 244 | memcpy(data->fw_data, firmware->data, firmware->size); | |||
| 245 | data->fw_size = firmware->size; | |||
| 246 | data->fw_sent = 0; | |||
| 247 | ||||
| 248 | release_firmware(firmware); | |||
| 249 | ||||
| 250 | init_timer(&data->timer); | |||
| 251 | data->timer.function = bcm203x_timer; | |||
| 252 | data->timer.data = (unsigned long) data; | |||
| 253 | ||||
| 254 | usb_set_intfdata(intf, data); | |||
| 255 | ||||
| 256 | mod_timer(&data->timer, jiffies + HZ); | |||
| 257 | ||||
| 0 | - | 258 | return 0; | |
| 259 | } | |||
| 260 | ||||
| 0 | 0 | - | 261 | static void bcm203x_disconnect(struct usb_interface *intf) |
| 262 | { | |||
| 263 | struct bcm203x_data *data = usb_get_intfdata(intf); | |||
| 264 | ||||
| 265 | BT_DBG("intf %p", intf); | |||
| 266 | ||||
| 267 | usb_kill_urb(data->urb); | |||
| 268 | ||||
| 269 | usb_set_intfdata(intf, NULL); | |||
| 270 | ||||
| 271 | usb_free_urb(data->urb); | |||
| 272 | kfree(data->fw_data); | |||
| 273 | kfree(data->buffer); | |||
| 274 | kfree(data); | |||
| 275 | } | |||
| 276 | ||||
| 277 | static struct usb_driver bcm203x_driver = { | |||
| 278 | .name = "bcm203x", | |||
| 279 | .probe = bcm203x_probe, | |||
| 280 | .disconnect = bcm203x_disconnect, | |||
| 281 | .id_table = bcm203x_table, | |||
| 282 | }; | |||
| 283 | ||||
| 0 | 0 | - | 284 | static int __init bcm203x_init(void) |
| 285 | { | |||
| 286 | int err; | |||
| 287 | ||||
| 288 | BT_INFO("Broadcom Blutonium firmware driver ver %s", VERSION); | |||
| 289 | ||||
| 290 | err = usb_register(&bcm203x_driver); | |||
| 0 | 0 | - | 291 | if (err < 0) |
| 292 | BT_ERR("Failed to register USB driver"); | |||
| 293 | ||||
| 0 | - | 294 | return err; | |
| 295 | } | |||
| 296 | ||||
| 0 | 0 | - | 297 | static void __exit bcm203x_exit(void) |
| 298 | { | |||
| 299 | usb_deregister(&bcm203x_driver); | |||
| 300 | } | |||
| 301 | ||||
| 0 | 0 | - | 302 | module_init(bcm203x_init); |
| 0 | - | 302 | return bcm203x_init | |
| 0 | 0 | - | 303 | module_exit(bcm203x_exit); |
| 0 | - | 303 | return bcm203x_exit | |
| 304 | ||||
| 0 | 0 | - | 305 | module_param(ignore, bool, 0644); |
| 0 | - | 305 | return ( & ( ignore ) ) | |
| 306 | MODULE_PARM_DESC(ignore, "Ignore devices from the matching table"); | |||
| 307 | ||||
| 308 | MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); | |||
| 309 | MODULE_DESCRIPTION("Broadcom Blutonium firmware driver ver " VERSION); | |||
| 310 | MODULE_VERSION(VERSION); | |||
| 311 | MODULE_LICENSE("GPL"); | |||
| ***TER 0% (0/66) of SOURCE FILE bcm203x.c | ||||