Jarod Wilson | 66e8952 | 2010-06-01 17:32:08 -0300 | [diff] [blame] | 1 | /* |
| 2 | * Driver for USB Windows Media Center Ed. eHome Infrared Transceivers |
| 3 | * |
| 4 | * Copyright (c) 2010 by Jarod Wilson <jarod@redhat.com> |
| 5 | * |
| 6 | * Based on the original lirc_mceusb and lirc_mceusb2 drivers, by Dan |
| 7 | * Conti, Martin Blatter and Daniel Melander, the latter of which was |
| 8 | * in turn also based on the lirc_atiusb driver by Paul Miller. The |
| 9 | * two mce drivers were merged into one by Jarod Wilson, with transmit |
| 10 | * support for the 1st-gen device added primarily by Patrick Calhoun, |
| 11 | * with a bit of tweaks by Jarod. Debugging improvements and proper |
| 12 | * support for what appears to be 3rd-gen hardware added by Jarod. |
| 13 | * Initial port from lirc driver to ir-core drivery by Jarod, based |
| 14 | * partially on a port to an earlier proposed IR infrastructure by |
| 15 | * Jon Smirl, which included enhancements and simplifications to the |
| 16 | * incoming IR buffer parsing routines. |
| 17 | * |
| 18 | * TODO: |
| 19 | * - add rc-core transmit support, once available |
| 20 | * - enable support for forthcoming ir-lirc-codec interface |
| 21 | * |
| 22 | * |
| 23 | * This program is free software; you can redistribute it and/or modify |
| 24 | * it under the terms of the GNU General Public License as published by |
| 25 | * the Free Software Foundation; either version 2 of the License, or |
| 26 | * (at your option) any later version. |
| 27 | * |
| 28 | * This program is distributed in the hope that it will be useful, |
| 29 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 30 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 31 | * GNU General Public License for more details. |
| 32 | * |
| 33 | * You should have received a copy of the GNU General Public License |
| 34 | * along with this program; if not, write to the Free Software |
| 35 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 36 | * |
| 37 | */ |
| 38 | |
| 39 | #include <linux/device.h> |
| 40 | #include <linux/module.h> |
| 41 | #include <linux/slab.h> |
| 42 | #include <linux/usb.h> |
| 43 | #include <linux/input.h> |
| 44 | #include <media/ir-core.h> |
| 45 | #include <media/ir-common.h> |
| 46 | |
| 47 | #define DRIVER_VERSION "1.91" |
| 48 | #define DRIVER_AUTHOR "Jarod Wilson <jarod@wilsonet.com>" |
| 49 | #define DRIVER_DESC "Windows Media Center Ed. eHome Infrared Transceiver " \ |
| 50 | "device driver" |
| 51 | #define DRIVER_NAME "mceusb" |
| 52 | |
| 53 | #define USB_BUFLEN 32 /* USB reception buffer length */ |
| 54 | #define IRBUF_SIZE 256 /* IR work buffer length */ |
| 55 | |
| 56 | /* MCE constants */ |
| 57 | #define MCE_CMDBUF_SIZE 384 /* MCE Command buffer length */ |
| 58 | #define MCE_TIME_UNIT 50 /* Approx 50us resolution */ |
| 59 | #define MCE_CODE_LENGTH 5 /* Normal length of packet (with header) */ |
| 60 | #define MCE_PACKET_SIZE 4 /* Normal length of packet (without header) */ |
| 61 | #define MCE_PACKET_HEADER 0x84 /* Actual header format is 0x80 + num_bytes */ |
| 62 | #define MCE_CONTROL_HEADER 0x9F /* MCE status header */ |
| 63 | #define MCE_TX_HEADER_LENGTH 3 /* # of bytes in the initializing tx header */ |
| 64 | #define MCE_MAX_CHANNELS 2 /* Two transmitters, hardware dependent? */ |
| 65 | #define MCE_DEFAULT_TX_MASK 0x03 /* Val opts: TX1=0x01, TX2=0x02, ALL=0x03 */ |
| 66 | #define MCE_PULSE_BIT 0x80 /* Pulse bit, MSB set == PULSE else SPACE */ |
| 67 | #define MCE_PULSE_MASK 0x7F /* Pulse mask */ |
| 68 | #define MCE_MAX_PULSE_LENGTH 0x7F /* Longest transmittable pulse symbol */ |
| 69 | #define MCE_PACKET_LENGTH_MASK 0xF /* Packet length mask */ |
| 70 | |
| 71 | |
| 72 | /* module parameters */ |
| 73 | #ifdef CONFIG_USB_DEBUG |
| 74 | static int debug = 1; |
| 75 | #else |
| 76 | static int debug; |
| 77 | #endif |
| 78 | |
| 79 | /* general constants */ |
| 80 | #define SEND_FLAG_IN_PROGRESS 1 |
| 81 | #define SEND_FLAG_COMPLETE 2 |
| 82 | #define RECV_FLAG_IN_PROGRESS 3 |
| 83 | #define RECV_FLAG_COMPLETE 4 |
| 84 | |
| 85 | #define MCEUSB_RX 1 |
| 86 | #define MCEUSB_TX 2 |
| 87 | |
| 88 | #define VENDOR_PHILIPS 0x0471 |
| 89 | #define VENDOR_SMK 0x0609 |
| 90 | #define VENDOR_TATUNG 0x1460 |
| 91 | #define VENDOR_GATEWAY 0x107b |
| 92 | #define VENDOR_SHUTTLE 0x1308 |
| 93 | #define VENDOR_SHUTTLE2 0x051c |
| 94 | #define VENDOR_MITSUMI 0x03ee |
| 95 | #define VENDOR_TOPSEED 0x1784 |
| 96 | #define VENDOR_RICAVISION 0x179d |
| 97 | #define VENDOR_ITRON 0x195d |
| 98 | #define VENDOR_FIC 0x1509 |
| 99 | #define VENDOR_LG 0x043e |
| 100 | #define VENDOR_MICROSOFT 0x045e |
| 101 | #define VENDOR_FORMOSA 0x147a |
| 102 | #define VENDOR_FINTEK 0x1934 |
| 103 | #define VENDOR_PINNACLE 0x2304 |
| 104 | #define VENDOR_ECS 0x1019 |
| 105 | #define VENDOR_WISTRON 0x0fb8 |
| 106 | #define VENDOR_COMPRO 0x185b |
| 107 | #define VENDOR_NORTHSTAR 0x04eb |
| 108 | #define VENDOR_REALTEK 0x0bda |
| 109 | #define VENDOR_TIVO 0x105a |
| 110 | |
| 111 | static struct usb_device_id mceusb_dev_table[] = { |
| 112 | /* Original Microsoft MCE IR Transceiver (often HP-branded) */ |
| 113 | { USB_DEVICE(VENDOR_MICROSOFT, 0x006d) }, |
| 114 | /* Philips Infrared Transceiver - Sahara branded */ |
| 115 | { USB_DEVICE(VENDOR_PHILIPS, 0x0608) }, |
| 116 | /* Philips Infrared Transceiver - HP branded */ |
| 117 | { USB_DEVICE(VENDOR_PHILIPS, 0x060c) }, |
| 118 | /* Philips SRM5100 */ |
| 119 | { USB_DEVICE(VENDOR_PHILIPS, 0x060d) }, |
| 120 | /* Philips Infrared Transceiver - Omaura */ |
| 121 | { USB_DEVICE(VENDOR_PHILIPS, 0x060f) }, |
| 122 | /* Philips Infrared Transceiver - Spinel plus */ |
| 123 | { USB_DEVICE(VENDOR_PHILIPS, 0x0613) }, |
| 124 | /* Philips eHome Infrared Transceiver */ |
| 125 | { USB_DEVICE(VENDOR_PHILIPS, 0x0815) }, |
| 126 | /* Realtek MCE IR Receiver */ |
| 127 | { USB_DEVICE(VENDOR_REALTEK, 0x0161) }, |
| 128 | /* SMK/Toshiba G83C0004D410 */ |
| 129 | { USB_DEVICE(VENDOR_SMK, 0x031d) }, |
| 130 | /* SMK eHome Infrared Transceiver (Sony VAIO) */ |
| 131 | { USB_DEVICE(VENDOR_SMK, 0x0322) }, |
| 132 | /* bundled with Hauppauge PVR-150 */ |
| 133 | { USB_DEVICE(VENDOR_SMK, 0x0334) }, |
| 134 | /* SMK eHome Infrared Transceiver */ |
| 135 | { USB_DEVICE(VENDOR_SMK, 0x0338) }, |
| 136 | /* Tatung eHome Infrared Transceiver */ |
| 137 | { USB_DEVICE(VENDOR_TATUNG, 0x9150) }, |
| 138 | /* Shuttle eHome Infrared Transceiver */ |
| 139 | { USB_DEVICE(VENDOR_SHUTTLE, 0xc001) }, |
| 140 | /* Shuttle eHome Infrared Transceiver */ |
| 141 | { USB_DEVICE(VENDOR_SHUTTLE2, 0xc001) }, |
| 142 | /* Gateway eHome Infrared Transceiver */ |
| 143 | { USB_DEVICE(VENDOR_GATEWAY, 0x3009) }, |
| 144 | /* Mitsumi */ |
| 145 | { USB_DEVICE(VENDOR_MITSUMI, 0x2501) }, |
| 146 | /* Topseed eHome Infrared Transceiver */ |
| 147 | { USB_DEVICE(VENDOR_TOPSEED, 0x0001) }, |
| 148 | /* Topseed HP eHome Infrared Transceiver */ |
| 149 | { USB_DEVICE(VENDOR_TOPSEED, 0x0006) }, |
| 150 | /* Topseed eHome Infrared Transceiver */ |
| 151 | { USB_DEVICE(VENDOR_TOPSEED, 0x0007) }, |
| 152 | /* Topseed eHome Infrared Transceiver */ |
| 153 | { USB_DEVICE(VENDOR_TOPSEED, 0x0008) }, |
| 154 | /* Topseed eHome Infrared Transceiver */ |
| 155 | { USB_DEVICE(VENDOR_TOPSEED, 0x000a) }, |
| 156 | /* Topseed eHome Infrared Transceiver */ |
| 157 | { USB_DEVICE(VENDOR_TOPSEED, 0x0011) }, |
| 158 | /* Ricavision internal Infrared Transceiver */ |
| 159 | { USB_DEVICE(VENDOR_RICAVISION, 0x0010) }, |
| 160 | /* Itron ione Libra Q-11 */ |
| 161 | { USB_DEVICE(VENDOR_ITRON, 0x7002) }, |
| 162 | /* FIC eHome Infrared Transceiver */ |
| 163 | { USB_DEVICE(VENDOR_FIC, 0x9242) }, |
| 164 | /* LG eHome Infrared Transceiver */ |
| 165 | { USB_DEVICE(VENDOR_LG, 0x9803) }, |
| 166 | /* Microsoft MCE Infrared Transceiver */ |
| 167 | { USB_DEVICE(VENDOR_MICROSOFT, 0x00a0) }, |
| 168 | /* Formosa eHome Infrared Transceiver */ |
| 169 | { USB_DEVICE(VENDOR_FORMOSA, 0xe015) }, |
| 170 | /* Formosa21 / eHome Infrared Receiver */ |
| 171 | { USB_DEVICE(VENDOR_FORMOSA, 0xe016) }, |
| 172 | /* Formosa aim / Trust MCE Infrared Receiver */ |
| 173 | { USB_DEVICE(VENDOR_FORMOSA, 0xe017) }, |
| 174 | /* Formosa Industrial Computing / Beanbag Emulation Device */ |
| 175 | { USB_DEVICE(VENDOR_FORMOSA, 0xe018) }, |
| 176 | /* Formosa21 / eHome Infrared Receiver */ |
| 177 | { USB_DEVICE(VENDOR_FORMOSA, 0xe03a) }, |
| 178 | /* Formosa Industrial Computing AIM IR605/A */ |
| 179 | { USB_DEVICE(VENDOR_FORMOSA, 0xe03c) }, |
| 180 | /* Formosa Industrial Computing */ |
| 181 | { USB_DEVICE(VENDOR_FORMOSA, 0xe03e) }, |
| 182 | /* Fintek eHome Infrared Transceiver */ |
| 183 | { USB_DEVICE(VENDOR_FINTEK, 0x0602) }, |
| 184 | /* Fintek eHome Infrared Transceiver (in the AOpen MP45) */ |
| 185 | { USB_DEVICE(VENDOR_FINTEK, 0x0702) }, |
| 186 | /* Pinnacle Remote Kit */ |
| 187 | { USB_DEVICE(VENDOR_PINNACLE, 0x0225) }, |
| 188 | /* Elitegroup Computer Systems IR */ |
| 189 | { USB_DEVICE(VENDOR_ECS, 0x0f38) }, |
| 190 | /* Wistron Corp. eHome Infrared Receiver */ |
| 191 | { USB_DEVICE(VENDOR_WISTRON, 0x0002) }, |
| 192 | /* Compro K100 */ |
| 193 | { USB_DEVICE(VENDOR_COMPRO, 0x3020) }, |
| 194 | /* Compro K100 v2 */ |
| 195 | { USB_DEVICE(VENDOR_COMPRO, 0x3082) }, |
| 196 | /* Northstar Systems, Inc. eHome Infrared Transceiver */ |
| 197 | { USB_DEVICE(VENDOR_NORTHSTAR, 0xe004) }, |
| 198 | /* TiVo PC IR Receiver */ |
| 199 | { USB_DEVICE(VENDOR_TIVO, 0x2000) }, |
| 200 | /* Terminating entry */ |
| 201 | { } |
| 202 | }; |
| 203 | |
| 204 | static struct usb_device_id gen3_list[] = { |
| 205 | { USB_DEVICE(VENDOR_PINNACLE, 0x0225) }, |
| 206 | { USB_DEVICE(VENDOR_TOPSEED, 0x0008) }, |
| 207 | {} |
| 208 | }; |
| 209 | |
| 210 | static struct usb_device_id pinnacle_list[] = { |
| 211 | { USB_DEVICE(VENDOR_PINNACLE, 0x0225) }, |
| 212 | {} |
| 213 | }; |
| 214 | |
| 215 | static struct usb_device_id microsoft_gen1_list[] = { |
| 216 | { USB_DEVICE(VENDOR_MICROSOFT, 0x006d) }, |
| 217 | {} |
| 218 | }; |
| 219 | |
| 220 | /* data structure for each usb transceiver */ |
| 221 | struct mceusb_dev { |
| 222 | /* ir-core bits */ |
| 223 | struct ir_input_dev *irdev; |
| 224 | struct ir_dev_props *props; |
| 225 | struct ir_input_state *state; |
| 226 | struct ir_raw_event rawir; |
| 227 | |
| 228 | /* core device bits */ |
| 229 | struct device *dev; |
| 230 | struct input_dev *idev; |
| 231 | |
| 232 | /* usb */ |
| 233 | struct usb_device *usbdev; |
| 234 | struct urb *urb_in; |
| 235 | struct usb_endpoint_descriptor *usb_ep_in; |
| 236 | struct usb_endpoint_descriptor *usb_ep_out; |
| 237 | |
| 238 | /* buffers and dma */ |
| 239 | unsigned char *buf_in; |
| 240 | unsigned int len_in; |
| 241 | u8 cmd; /* MCE command type */ |
| 242 | u8 rem; /* Remaining IR data bytes in packet */ |
| 243 | dma_addr_t dma_in; |
| 244 | dma_addr_t dma_out; |
| 245 | |
| 246 | struct { |
| 247 | u32 connected:1; |
| 248 | u32 def_xmit_mask_set:1; |
| 249 | u32 microsoft_gen1:1; |
| 250 | u32 gen3:1; |
| 251 | u32 reserved:28; |
| 252 | } flags; |
| 253 | |
| 254 | /* handle sending (init strings) */ |
| 255 | int send_flags; |
| 256 | int carrier; |
| 257 | |
| 258 | char name[128]; |
| 259 | char phys[64]; |
| 260 | |
| 261 | unsigned char def_xmit_mask; |
| 262 | unsigned char cur_xmit_mask; |
| 263 | }; |
| 264 | |
| 265 | /* |
| 266 | * MCE Device Command Strings |
| 267 | * Device command responses vary from device to device... |
| 268 | * - DEVICE_RESET resets the hardware to its default state |
| 269 | * - GET_REVISION fetches the hardware/software revision, common |
| 270 | * replies are ff 0b 45 ff 1b 08 and ff 0b 50 ff 1b 42 |
| 271 | * - GET_CARRIER_FREQ gets the carrier mode and frequency of the |
| 272 | * device, with replies in the form of 9f 06 MM FF, where MM is 0-3, |
| 273 | * meaning clk of 10000000, 2500000, 625000 or 156250, and FF is |
| 274 | * ((clk / frequency) - 1) |
| 275 | * - GET_RX_TIMEOUT fetches the receiver timeout in units of 50us, |
| 276 | * response in the form of 9f 0c msb lsb |
| 277 | * - GET_TX_BITMASK fetches the transmitter bitmask, replies in |
| 278 | * the form of 9f 08 bm, where bm is the bitmask |
| 279 | * - GET_RX_SENSOR fetches the RX sensor setting -- long-range |
| 280 | * general use one or short-range learning one, in the form of |
| 281 | * 9f 14 ss, where ss is either 01 for long-range or 02 for short |
| 282 | * - SET_CARRIER_FREQ sets a new carrier mode and frequency |
| 283 | * - SET_TX_BITMASK sets the transmitter bitmask |
| 284 | * - SET_RX_TIMEOUT sets the receiver timeout |
| 285 | * - SET_RX_SENSOR sets which receiver sensor to use |
| 286 | */ |
| 287 | static char DEVICE_RESET[] = {0x00, 0xff, 0xaa}; |
| 288 | static char GET_REVISION[] = {0xff, 0x0b}; |
| 289 | static char GET_UNKNOWN[] = {0xff, 0x18}; |
| 290 | static char GET_CARRIER_FREQ[] = {0x9f, 0x07}; |
| 291 | static char GET_RX_TIMEOUT[] = {0x9f, 0x0d}; |
| 292 | static char GET_TX_BITMASK[] = {0x9f, 0x13}; |
| 293 | static char GET_RX_SENSOR[] = {0x9f, 0x15}; |
| 294 | /* sub in desired values in lower byte or bytes for full command */ |
| 295 | /* FIXME: make use of these for transmit. |
| 296 | static char SET_CARRIER_FREQ[] = {0x9f, 0x06, 0x00, 0x00}; |
| 297 | static char SET_TX_BITMASK[] = {0x9f, 0x08, 0x00}; |
| 298 | static char SET_RX_TIMEOUT[] = {0x9f, 0x0c, 0x00, 0x00}; |
| 299 | static char SET_RX_SENSOR[] = {0x9f, 0x14, 0x00}; |
| 300 | */ |
| 301 | |
| 302 | static void mceusb_dev_printdata(struct mceusb_dev *ir, char *buf, |
| 303 | int len, bool out) |
| 304 | { |
| 305 | char codes[USB_BUFLEN * 3 + 1]; |
| 306 | char inout[9]; |
| 307 | int i; |
| 308 | u8 cmd, subcmd, data1, data2; |
| 309 | struct device *dev = ir->dev; |
| 310 | |
| 311 | if (len <= 0) |
| 312 | return; |
| 313 | |
| 314 | if (ir->flags.microsoft_gen1 && len <= 2) |
| 315 | return; |
| 316 | |
| 317 | for (i = 0; i < len && i < USB_BUFLEN; i++) |
| 318 | snprintf(codes + i * 3, 4, "%02x ", buf[i] & 0xFF); |
| 319 | |
| 320 | dev_info(dev, "%sx data: %s (length=%d)\n", |
| 321 | (out ? "t" : "r"), codes, len); |
| 322 | |
| 323 | if (out) |
| 324 | strcpy(inout, "Request\0"); |
| 325 | else |
| 326 | strcpy(inout, "Got\0"); |
| 327 | |
| 328 | cmd = buf[0] & 0xff; |
| 329 | subcmd = buf[1] & 0xff; |
| 330 | data1 = buf[2] & 0xff; |
| 331 | data2 = buf[3] & 0xff; |
| 332 | |
| 333 | switch (cmd) { |
| 334 | case 0x00: |
| 335 | if (subcmd == 0xff && data1 == 0xaa) |
| 336 | dev_info(dev, "Device reset requested\n"); |
| 337 | else |
| 338 | dev_info(dev, "Unknown command 0x%02x 0x%02x\n", |
| 339 | cmd, subcmd); |
| 340 | break; |
| 341 | case 0xff: |
| 342 | switch (subcmd) { |
| 343 | case 0x0b: |
| 344 | if (len == 2) |
| 345 | dev_info(dev, "Get hw/sw rev?\n"); |
| 346 | else |
| 347 | dev_info(dev, "hw/sw rev 0x%02x 0x%02x " |
| 348 | "0x%02x 0x%02x\n", data1, data2, |
| 349 | buf[4], buf[5]); |
| 350 | break; |
| 351 | case 0xaa: |
| 352 | dev_info(dev, "Device reset requested\n"); |
| 353 | break; |
| 354 | case 0xfe: |
| 355 | dev_info(dev, "Previous command not supported\n"); |
| 356 | break; |
| 357 | case 0x18: |
| 358 | case 0x1b: |
| 359 | default: |
| 360 | dev_info(dev, "Unknown command 0x%02x 0x%02x\n", |
| 361 | cmd, subcmd); |
| 362 | break; |
| 363 | } |
| 364 | break; |
| 365 | case 0x9f: |
| 366 | switch (subcmd) { |
| 367 | case 0x03: |
| 368 | dev_info(dev, "Ping\n"); |
| 369 | break; |
| 370 | case 0x04: |
| 371 | dev_info(dev, "Resp to 9f 05 of 0x%02x 0x%02x\n", |
| 372 | data1, data2); |
| 373 | break; |
| 374 | case 0x06: |
| 375 | dev_info(dev, "%s carrier mode and freq of " |
| 376 | "0x%02x 0x%02x\n", inout, data1, data2); |
| 377 | break; |
| 378 | case 0x07: |
| 379 | dev_info(dev, "Get carrier mode and freq\n"); |
| 380 | break; |
| 381 | case 0x08: |
| 382 | dev_info(dev, "%s transmit blaster mask of 0x%02x\n", |
| 383 | inout, data1); |
| 384 | break; |
| 385 | case 0x0c: |
| 386 | /* value is in units of 50us, so x*50/100 or x/2 ms */ |
| 387 | dev_info(dev, "%s receive timeout of %d ms\n", |
| 388 | inout, ((data1 << 8) | data2) / 2); |
| 389 | break; |
| 390 | case 0x0d: |
| 391 | dev_info(dev, "Get receive timeout\n"); |
| 392 | break; |
| 393 | case 0x13: |
| 394 | dev_info(dev, "Get transmit blaster mask\n"); |
| 395 | break; |
| 396 | case 0x14: |
| 397 | dev_info(dev, "%s %s-range receive sensor in use\n", |
| 398 | inout, data1 == 0x02 ? "short" : "long"); |
| 399 | break; |
| 400 | case 0x15: |
| 401 | if (len == 2) |
| 402 | dev_info(dev, "Get receive sensor\n"); |
| 403 | else |
| 404 | dev_info(dev, "Received pulse count is %d\n", |
| 405 | ((data1 << 8) | data2)); |
| 406 | break; |
| 407 | case 0xfe: |
| 408 | dev_info(dev, "Error! Hardware is likely wedged...\n"); |
| 409 | break; |
| 410 | case 0x05: |
| 411 | case 0x09: |
| 412 | case 0x0f: |
| 413 | default: |
| 414 | dev_info(dev, "Unknown command 0x%02x 0x%02x\n", |
| 415 | cmd, subcmd); |
| 416 | break; |
| 417 | } |
| 418 | break; |
| 419 | default: |
| 420 | break; |
| 421 | } |
| 422 | } |
| 423 | |
| 424 | static void usb_async_callback(struct urb *urb, struct pt_regs *regs) |
| 425 | { |
| 426 | struct mceusb_dev *ir; |
| 427 | int len; |
| 428 | |
| 429 | if (!urb) |
| 430 | return; |
| 431 | |
| 432 | ir = urb->context; |
| 433 | if (ir) { |
| 434 | len = urb->actual_length; |
| 435 | |
| 436 | dev_dbg(ir->dev, "callback called (status=%d len=%d)\n", |
| 437 | urb->status, len); |
| 438 | |
| 439 | if (debug) |
| 440 | mceusb_dev_printdata(ir, urb->transfer_buffer, |
| 441 | len, true); |
| 442 | } |
| 443 | |
| 444 | } |
| 445 | |
| 446 | /* request incoming or send outgoing usb packet - used to initialize remote */ |
| 447 | static void mce_request_packet(struct mceusb_dev *ir, |
| 448 | struct usb_endpoint_descriptor *ep, |
| 449 | unsigned char *data, int size, int urb_type) |
| 450 | { |
| 451 | int res; |
| 452 | struct urb *async_urb; |
| 453 | struct device *dev = ir->dev; |
| 454 | unsigned char *async_buf; |
| 455 | |
| 456 | if (urb_type == MCEUSB_TX) { |
| 457 | async_urb = usb_alloc_urb(0, GFP_KERNEL); |
| 458 | if (unlikely(!async_urb)) { |
| 459 | dev_err(dev, "Error, couldn't allocate urb!\n"); |
| 460 | return; |
| 461 | } |
| 462 | |
| 463 | async_buf = kzalloc(size, GFP_KERNEL); |
| 464 | if (!async_buf) { |
| 465 | dev_err(dev, "Error, couldn't allocate buf!\n"); |
| 466 | usb_free_urb(async_urb); |
| 467 | return; |
| 468 | } |
| 469 | |
| 470 | /* outbound data */ |
| 471 | usb_fill_int_urb(async_urb, ir->usbdev, |
| 472 | usb_sndintpipe(ir->usbdev, ep->bEndpointAddress), |
| 473 | async_buf, size, (usb_complete_t) usb_async_callback, |
| 474 | ir, ep->bInterval); |
| 475 | memcpy(async_buf, data, size); |
| 476 | |
| 477 | } else if (urb_type == MCEUSB_RX) { |
| 478 | /* standard request */ |
| 479 | async_urb = ir->urb_in; |
| 480 | ir->send_flags = RECV_FLAG_IN_PROGRESS; |
| 481 | |
| 482 | } else { |
| 483 | dev_err(dev, "Error! Unknown urb type %d\n", urb_type); |
| 484 | return; |
| 485 | } |
| 486 | |
| 487 | dev_dbg(dev, "receive request called (size=%#x)\n", size); |
| 488 | |
| 489 | async_urb->transfer_buffer_length = size; |
| 490 | async_urb->dev = ir->usbdev; |
| 491 | |
| 492 | res = usb_submit_urb(async_urb, GFP_ATOMIC); |
| 493 | if (res) { |
| 494 | dev_dbg(dev, "receive request FAILED! (res=%d)\n", res); |
| 495 | return; |
| 496 | } |
| 497 | dev_dbg(dev, "receive request complete (res=%d)\n", res); |
| 498 | } |
| 499 | |
| 500 | static void mce_async_out(struct mceusb_dev *ir, unsigned char *data, int size) |
| 501 | { |
| 502 | mce_request_packet(ir, ir->usb_ep_out, data, size, MCEUSB_TX); |
| 503 | } |
| 504 | |
| 505 | static void mce_sync_in(struct mceusb_dev *ir, unsigned char *data, int size) |
| 506 | { |
| 507 | mce_request_packet(ir, ir->usb_ep_in, data, size, MCEUSB_RX); |
| 508 | } |
| 509 | |
| 510 | static void mceusb_process_ir_data(struct mceusb_dev *ir, int buf_len) |
| 511 | { |
| 512 | struct ir_raw_event rawir = { .pulse = false, .duration = 0 }; |
| 513 | int i, start_index = 0; |
| 514 | |
| 515 | /* skip meaningless 0xb1 0x60 header bytes on orig receiver */ |
| 516 | if (ir->flags.microsoft_gen1) |
| 517 | start_index = 2; |
| 518 | |
| 519 | for (i = start_index; i < buf_len;) { |
| 520 | if (ir->rem == 0) { |
| 521 | /* decode mce packets of the form (84),AA,BB,CC,DD */ |
| 522 | /* IR data packets can span USB messages - rem */ |
| 523 | ir->rem = (ir->buf_in[i] & MCE_PACKET_LENGTH_MASK); |
| 524 | ir->cmd = (ir->buf_in[i] & ~MCE_PACKET_LENGTH_MASK); |
| 525 | dev_dbg(ir->dev, "New data. rem: 0x%02x, cmd: 0x%02x\n", |
| 526 | ir->rem, ir->cmd); |
| 527 | i++; |
| 528 | } |
| 529 | |
| 530 | /* Only cmd 0x8<bytes> is IR data, don't process MCE commands */ |
| 531 | if (ir->cmd != 0x80) { |
| 532 | ir->rem = 0; |
| 533 | return; |
| 534 | } |
| 535 | |
| 536 | for (; (ir->rem > 0) && (i < buf_len); i++) { |
| 537 | ir->rem--; |
| 538 | |
| 539 | rawir.pulse = ((ir->buf_in[i] & MCE_PULSE_BIT) != 0); |
| 540 | rawir.duration = (ir->buf_in[i] & MCE_PULSE_MASK) |
| 541 | * MCE_TIME_UNIT * 1000; |
| 542 | |
| 543 | if ((ir->buf_in[i] & MCE_PULSE_MASK) == 0x7f) { |
| 544 | if (ir->rawir.pulse == rawir.pulse) |
| 545 | ir->rawir.duration += rawir.duration; |
| 546 | else { |
| 547 | ir->rawir.duration = rawir.duration; |
| 548 | ir->rawir.pulse = rawir.pulse; |
| 549 | } |
| 550 | continue; |
| 551 | } |
| 552 | rawir.duration += ir->rawir.duration; |
| 553 | ir->rawir.duration = 0; |
| 554 | ir->rawir.pulse = rawir.pulse; |
| 555 | |
| 556 | dev_dbg(ir->dev, "Storing %s with duration %d\n", |
| 557 | rawir.pulse ? "pulse" : "space", |
| 558 | rawir.duration); |
| 559 | |
| 560 | ir_raw_event_store(ir->idev, &rawir); |
| 561 | } |
| 562 | |
| 563 | if (ir->buf_in[i] == 0x80 || ir->buf_in[i] == 0x9f) |
| 564 | ir->rem = 0; |
| 565 | |
| 566 | dev_dbg(ir->dev, "calling ir_raw_event_handle\n"); |
| 567 | ir_raw_event_handle(ir->idev); |
| 568 | } |
| 569 | } |
| 570 | |
| 571 | static void mceusb_set_default_xmit_mask(struct urb *urb) |
| 572 | { |
| 573 | struct mceusb_dev *ir = urb->context; |
| 574 | char *buffer = urb->transfer_buffer; |
| 575 | u8 cmd, subcmd, def_xmit_mask; |
| 576 | |
| 577 | cmd = buffer[0] & 0xff; |
| 578 | subcmd = buffer[1] & 0xff; |
| 579 | |
| 580 | if (cmd == 0x9f && subcmd == 0x08) { |
| 581 | def_xmit_mask = buffer[2] & 0xff; |
| 582 | dev_dbg(ir->dev, "%s: setting xmit mask to 0x%02x\n", |
| 583 | __func__, def_xmit_mask); |
| 584 | ir->def_xmit_mask = def_xmit_mask; |
| 585 | ir->flags.def_xmit_mask_set = 1; |
| 586 | } |
| 587 | } |
| 588 | |
| 589 | static void mceusb_dev_recv(struct urb *urb, struct pt_regs *regs) |
| 590 | { |
| 591 | struct mceusb_dev *ir; |
| 592 | int buf_len; |
| 593 | |
| 594 | if (!urb) |
| 595 | return; |
| 596 | |
| 597 | ir = urb->context; |
| 598 | if (!ir) { |
| 599 | usb_unlink_urb(urb); |
| 600 | return; |
| 601 | } |
| 602 | |
| 603 | buf_len = urb->actual_length; |
| 604 | |
| 605 | if (!ir->flags.def_xmit_mask_set) |
| 606 | mceusb_set_default_xmit_mask(urb); |
| 607 | |
| 608 | if (debug) |
| 609 | mceusb_dev_printdata(ir, urb->transfer_buffer, buf_len, false); |
| 610 | |
| 611 | if (ir->send_flags == RECV_FLAG_IN_PROGRESS) { |
| 612 | ir->send_flags = SEND_FLAG_COMPLETE; |
| 613 | dev_dbg(&ir->irdev->dev, "setup answer received %d bytes\n", |
| 614 | buf_len); |
| 615 | } |
| 616 | |
| 617 | switch (urb->status) { |
| 618 | /* success */ |
| 619 | case 0: |
| 620 | mceusb_process_ir_data(ir, buf_len); |
| 621 | break; |
| 622 | |
| 623 | case -ECONNRESET: |
| 624 | case -ENOENT: |
| 625 | case -ESHUTDOWN: |
| 626 | usb_unlink_urb(urb); |
| 627 | return; |
| 628 | |
| 629 | case -EPIPE: |
| 630 | default: |
| 631 | break; |
| 632 | } |
| 633 | |
| 634 | usb_submit_urb(urb, GFP_ATOMIC); |
| 635 | } |
| 636 | |
| 637 | static void mceusb_gen1_init(struct mceusb_dev *ir) |
| 638 | { |
| 639 | int i, ret; |
| 640 | char junk[64], data[8]; |
| 641 | int partial = 0; |
| 642 | struct device *dev = ir->dev; |
| 643 | |
| 644 | /* |
| 645 | * Clear off the first few messages. These look like calibration |
| 646 | * or test data, I can't really tell. This also flushes in case |
| 647 | * we have random ir data queued up. |
| 648 | */ |
| 649 | for (i = 0; i < 40; i++) |
| 650 | usb_bulk_msg(ir->usbdev, |
| 651 | usb_rcvbulkpipe(ir->usbdev, |
| 652 | ir->usb_ep_in->bEndpointAddress), |
| 653 | junk, 64, &partial, HZ * 10); |
| 654 | |
| 655 | memset(data, 0, 8); |
| 656 | |
| 657 | /* Get Status */ |
| 658 | ret = usb_control_msg(ir->usbdev, usb_rcvctrlpipe(ir->usbdev, 0), |
| 659 | USB_REQ_GET_STATUS, USB_DIR_IN, |
| 660 | 0, 0, data, 2, HZ * 3); |
| 661 | |
| 662 | /* ret = usb_get_status( ir->usbdev, 0, 0, data ); */ |
| 663 | dev_dbg(dev, "%s - ret = %d status = 0x%x 0x%x\n", __func__, |
| 664 | ret, data[0], data[1]); |
| 665 | |
| 666 | /* |
| 667 | * This is a strange one. They issue a set address to the device |
| 668 | * on the receive control pipe and expect a certain value pair back |
| 669 | */ |
| 670 | memset(data, 0, 8); |
| 671 | |
| 672 | ret = usb_control_msg(ir->usbdev, usb_rcvctrlpipe(ir->usbdev, 0), |
| 673 | USB_REQ_SET_ADDRESS, USB_TYPE_VENDOR, 0, 0, |
| 674 | data, 2, HZ * 3); |
| 675 | dev_dbg(dev, "%s - ret = %d\n", __func__, ret); |
| 676 | dev_dbg(dev, "%s - data[0] = %d, data[1] = %d\n", |
| 677 | __func__, data[0], data[1]); |
| 678 | |
| 679 | /* set feature: bit rate 38400 bps */ |
| 680 | ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0), |
| 681 | USB_REQ_SET_FEATURE, USB_TYPE_VENDOR, |
| 682 | 0xc04e, 0x0000, NULL, 0, HZ * 3); |
| 683 | |
| 684 | dev_dbg(dev, "%s - ret = %d\n", __func__, ret); |
| 685 | |
| 686 | /* bRequest 4: set char length to 8 bits */ |
| 687 | ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0), |
| 688 | 4, USB_TYPE_VENDOR, |
| 689 | 0x0808, 0x0000, NULL, 0, HZ * 3); |
| 690 | dev_dbg(dev, "%s - retB = %d\n", __func__, ret); |
| 691 | |
| 692 | /* bRequest 2: set handshaking to use DTR/DSR */ |
| 693 | ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0), |
| 694 | 2, USB_TYPE_VENDOR, |
| 695 | 0x0000, 0x0100, NULL, 0, HZ * 3); |
| 696 | dev_dbg(dev, "%s - retC = %d\n", __func__, ret); |
| 697 | }; |
| 698 | |
| 699 | static void mceusb_gen2_init(struct mceusb_dev *ir) |
| 700 | { |
| 701 | int maxp = ir->len_in; |
| 702 | |
| 703 | mce_sync_in(ir, NULL, maxp); |
| 704 | mce_sync_in(ir, NULL, maxp); |
| 705 | |
| 706 | /* device reset */ |
| 707 | mce_async_out(ir, DEVICE_RESET, sizeof(DEVICE_RESET)); |
| 708 | mce_sync_in(ir, NULL, maxp); |
| 709 | |
| 710 | /* get hw/sw revision? */ |
| 711 | mce_async_out(ir, GET_REVISION, sizeof(GET_REVISION)); |
| 712 | mce_sync_in(ir, NULL, maxp); |
| 713 | |
| 714 | /* unknown what this actually returns... */ |
| 715 | mce_async_out(ir, GET_UNKNOWN, sizeof(GET_UNKNOWN)); |
| 716 | mce_sync_in(ir, NULL, maxp); |
| 717 | } |
| 718 | |
| 719 | static void mceusb_gen3_init(struct mceusb_dev *ir) |
| 720 | { |
| 721 | int maxp = ir->len_in; |
| 722 | |
| 723 | mce_sync_in(ir, NULL, maxp); |
| 724 | |
| 725 | /* device reset */ |
| 726 | mce_async_out(ir, DEVICE_RESET, sizeof(DEVICE_RESET)); |
| 727 | mce_sync_in(ir, NULL, maxp); |
| 728 | |
| 729 | /* get the carrier and frequency */ |
| 730 | mce_async_out(ir, GET_CARRIER_FREQ, sizeof(GET_CARRIER_FREQ)); |
| 731 | mce_sync_in(ir, NULL, maxp); |
| 732 | |
| 733 | /* get the transmitter bitmask */ |
| 734 | mce_async_out(ir, GET_TX_BITMASK, sizeof(GET_TX_BITMASK)); |
| 735 | mce_sync_in(ir, NULL, maxp); |
| 736 | |
| 737 | /* get receiver timeout value */ |
| 738 | mce_async_out(ir, GET_RX_TIMEOUT, sizeof(GET_RX_TIMEOUT)); |
| 739 | mce_sync_in(ir, NULL, maxp); |
| 740 | |
| 741 | /* get receiver sensor setting */ |
| 742 | mce_async_out(ir, GET_RX_SENSOR, sizeof(GET_RX_SENSOR)); |
| 743 | mce_sync_in(ir, NULL, maxp); |
| 744 | } |
| 745 | |
| 746 | static struct input_dev *mceusb_init_input_dev(struct mceusb_dev *ir) |
| 747 | { |
| 748 | struct input_dev *idev; |
| 749 | struct ir_dev_props *props; |
| 750 | struct ir_input_dev *irdev; |
| 751 | struct ir_input_state *state; |
| 752 | struct device *dev = ir->dev; |
| 753 | int ret = -ENODEV; |
| 754 | |
| 755 | idev = input_allocate_device(); |
| 756 | if (!idev) { |
| 757 | dev_err(dev, "remote input dev allocation failed\n"); |
| 758 | goto idev_alloc_failed; |
| 759 | } |
| 760 | |
| 761 | ret = -ENOMEM; |
| 762 | props = kzalloc(sizeof(struct ir_dev_props), GFP_KERNEL); |
| 763 | if (!props) { |
| 764 | dev_err(dev, "remote ir dev props allocation failed\n"); |
| 765 | goto props_alloc_failed; |
| 766 | } |
| 767 | |
| 768 | irdev = kzalloc(sizeof(struct ir_input_dev), GFP_KERNEL); |
| 769 | if (!irdev) { |
| 770 | dev_err(dev, "remote ir input dev allocation failed\n"); |
| 771 | goto ir_dev_alloc_failed; |
| 772 | } |
| 773 | |
| 774 | state = kzalloc(sizeof(struct ir_input_state), GFP_KERNEL); |
| 775 | if (!state) { |
| 776 | dev_err(dev, "remote ir state allocation failed\n"); |
| 777 | goto ir_state_alloc_failed; |
| 778 | } |
| 779 | |
| 780 | snprintf(ir->name, sizeof(ir->name), "Media Center Edition eHome " |
| 781 | "Infrared Remote Transceiver (%04x:%04x)", |
| 782 | le16_to_cpu(ir->usbdev->descriptor.idVendor), |
| 783 | le16_to_cpu(ir->usbdev->descriptor.idProduct)); |
| 784 | |
| 785 | ret = ir_input_init(idev, state, IR_TYPE_RC6); |
| 786 | if (ret < 0) |
| 787 | goto irdev_failed; |
| 788 | |
| 789 | idev->name = ir->name; |
| 790 | |
| 791 | usb_make_path(ir->usbdev, ir->phys, sizeof(ir->phys)); |
| 792 | strlcat(ir->phys, "/input0", sizeof(ir->phys)); |
| 793 | idev->phys = ir->phys; |
| 794 | |
| 795 | /* FIXME: no EV_REP (yet), we may need our own auto-repeat handling */ |
| 796 | idev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL); |
| 797 | |
| 798 | idev->keybit[BIT_WORD(BTN_MOUSE)] = |
| 799 | BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_RIGHT); |
| 800 | idev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y) | |
| 801 | BIT_MASK(REL_WHEEL); |
| 802 | |
| 803 | props->priv = ir; |
| 804 | props->driver_type = RC_DRIVER_IR_RAW; |
| 805 | props->allowed_protos = IR_TYPE_ALL; |
| 806 | |
| 807 | ir->props = props; |
| 808 | ir->irdev = irdev; |
| 809 | ir->state = state; |
| 810 | |
| 811 | input_set_drvdata(idev, irdev); |
| 812 | |
| 813 | ret = ir_input_register(idev, RC_MAP_RC6_MCE, props, DRIVER_NAME); |
| 814 | if (ret < 0) { |
| 815 | dev_err(dev, "remote input device register failed\n"); |
| 816 | goto irdev_failed; |
| 817 | } |
| 818 | |
| 819 | return idev; |
| 820 | |
| 821 | irdev_failed: |
| 822 | kfree(state); |
| 823 | ir_state_alloc_failed: |
| 824 | kfree(irdev); |
| 825 | ir_dev_alloc_failed: |
| 826 | kfree(props); |
| 827 | props_alloc_failed: |
| 828 | input_free_device(idev); |
| 829 | idev_alloc_failed: |
| 830 | return NULL; |
| 831 | } |
| 832 | |
| 833 | static int __devinit mceusb_dev_probe(struct usb_interface *intf, |
| 834 | const struct usb_device_id *id) |
| 835 | { |
| 836 | struct usb_device *dev = interface_to_usbdev(intf); |
| 837 | struct usb_host_interface *idesc; |
| 838 | struct usb_endpoint_descriptor *ep = NULL; |
| 839 | struct usb_endpoint_descriptor *ep_in = NULL; |
| 840 | struct usb_endpoint_descriptor *ep_out = NULL; |
| 841 | struct usb_host_config *config; |
| 842 | struct mceusb_dev *ir = NULL; |
| 843 | int pipe, maxp; |
| 844 | int i, ret; |
| 845 | char buf[63], name[128] = ""; |
| 846 | bool is_gen3; |
| 847 | bool is_microsoft_gen1; |
| 848 | bool is_pinnacle; |
| 849 | |
| 850 | dev_dbg(&intf->dev, ": %s called\n", __func__); |
| 851 | |
| 852 | usb_reset_device(dev); |
| 853 | |
| 854 | config = dev->actconfig; |
| 855 | idesc = intf->cur_altsetting; |
| 856 | |
| 857 | is_gen3 = usb_match_id(intf, gen3_list) ? 1 : 0; |
| 858 | is_microsoft_gen1 = usb_match_id(intf, microsoft_gen1_list) ? 1 : 0; |
| 859 | is_pinnacle = usb_match_id(intf, pinnacle_list) ? 1 : 0; |
| 860 | |
| 861 | /* step through the endpoints to find first bulk in and out endpoint */ |
| 862 | for (i = 0; i < idesc->desc.bNumEndpoints; ++i) { |
| 863 | ep = &idesc->endpoint[i].desc; |
| 864 | |
| 865 | if ((ep_in == NULL) |
| 866 | && ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK) |
| 867 | == USB_DIR_IN) |
| 868 | && (((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) |
| 869 | == USB_ENDPOINT_XFER_BULK) |
| 870 | || ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) |
| 871 | == USB_ENDPOINT_XFER_INT))) { |
| 872 | |
| 873 | dev_dbg(&intf->dev, ": acceptable inbound endpoint " |
| 874 | "found\n"); |
| 875 | ep_in = ep; |
| 876 | ep_in->bmAttributes = USB_ENDPOINT_XFER_INT; |
| 877 | if (!is_pinnacle) |
| 878 | /* |
| 879 | * Ideally, we'd use what the device offers up, |
| 880 | * but that leads to non-functioning first and |
| 881 | * second-gen devices, and many devices have an |
| 882 | * invalid bInterval of 0. Pinnacle devices |
| 883 | * don't work witha bInterval of 1 though. |
| 884 | */ |
| 885 | ep_in->bInterval = 1; |
| 886 | } |
| 887 | |
| 888 | if ((ep_out == NULL) |
| 889 | && ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK) |
| 890 | == USB_DIR_OUT) |
| 891 | && (((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) |
| 892 | == USB_ENDPOINT_XFER_BULK) |
| 893 | || ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) |
| 894 | == USB_ENDPOINT_XFER_INT))) { |
| 895 | |
| 896 | dev_dbg(&intf->dev, ": acceptable outbound endpoint " |
| 897 | "found\n"); |
| 898 | ep_out = ep; |
| 899 | ep_out->bmAttributes = USB_ENDPOINT_XFER_INT; |
| 900 | if (!is_pinnacle) |
| 901 | /* |
| 902 | * Ideally, we'd use what the device offers up, |
| 903 | * but that leads to non-functioning first and |
| 904 | * second-gen devices, and many devices have an |
| 905 | * invalid bInterval of 0. Pinnacle devices |
| 906 | * don't work witha bInterval of 1 though. |
| 907 | */ |
| 908 | ep_out->bInterval = 1; |
| 909 | } |
| 910 | } |
| 911 | if (ep_in == NULL) { |
| 912 | dev_dbg(&intf->dev, ": inbound and/or endpoint not found\n"); |
| 913 | return -ENODEV; |
| 914 | } |
| 915 | |
| 916 | pipe = usb_rcvintpipe(dev, ep_in->bEndpointAddress); |
| 917 | maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe)); |
| 918 | |
| 919 | ir = kzalloc(sizeof(struct mceusb_dev), GFP_KERNEL); |
| 920 | if (!ir) |
| 921 | goto mem_alloc_fail; |
| 922 | |
| 923 | ir->buf_in = usb_alloc_coherent(dev, maxp, GFP_ATOMIC, &ir->dma_in); |
| 924 | if (!ir->buf_in) |
| 925 | goto buf_in_alloc_fail; |
| 926 | |
| 927 | ir->urb_in = usb_alloc_urb(0, GFP_KERNEL); |
| 928 | if (!ir->urb_in) |
| 929 | goto urb_in_alloc_fail; |
| 930 | |
| 931 | ir->usbdev = dev; |
| 932 | ir->dev = &intf->dev; |
| 933 | ir->len_in = maxp; |
| 934 | ir->flags.gen3 = is_gen3; |
| 935 | ir->flags.microsoft_gen1 = is_microsoft_gen1; |
| 936 | |
| 937 | /* Saving usb interface data for use by the transmitter routine */ |
| 938 | ir->usb_ep_in = ep_in; |
| 939 | ir->usb_ep_out = ep_out; |
| 940 | |
| 941 | if (dev->descriptor.iManufacturer |
| 942 | && usb_string(dev, dev->descriptor.iManufacturer, |
| 943 | buf, sizeof(buf)) > 0) |
| 944 | strlcpy(name, buf, sizeof(name)); |
| 945 | if (dev->descriptor.iProduct |
| 946 | && usb_string(dev, dev->descriptor.iProduct, |
| 947 | buf, sizeof(buf)) > 0) |
| 948 | snprintf(name + strlen(name), sizeof(name) - strlen(name), |
| 949 | " %s", buf); |
| 950 | |
| 951 | ir->idev = mceusb_init_input_dev(ir); |
| 952 | if (!ir->idev) |
| 953 | goto input_dev_fail; |
| 954 | |
| 955 | /* inbound data */ |
| 956 | usb_fill_int_urb(ir->urb_in, dev, pipe, ir->buf_in, |
| 957 | maxp, (usb_complete_t) mceusb_dev_recv, ir, ep_in->bInterval); |
| 958 | ir->urb_in->transfer_dma = ir->dma_in; |
| 959 | ir->urb_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; |
| 960 | |
| 961 | if (is_pinnacle) { |
| 962 | /* |
| 963 | * I have no idea why but this reset seems to be crucial to |
| 964 | * getting the device to do outbound IO correctly - without |
| 965 | * this the device seems to hang, ignoring all input - although |
| 966 | * IR signals are correctly sent from the device, no input is |
| 967 | * interpreted by the device and the host never does the |
| 968 | * completion routine |
| 969 | */ |
| 970 | ret = usb_reset_configuration(dev); |
| 971 | dev_info(&intf->dev, "usb reset config ret %x\n", ret); |
| 972 | } |
| 973 | |
| 974 | /* initialize device */ |
| 975 | if (ir->flags.gen3) |
| 976 | mceusb_gen3_init(ir); |
| 977 | |
| 978 | else if (ir->flags.microsoft_gen1) |
| 979 | mceusb_gen1_init(ir); |
| 980 | |
| 981 | else |
| 982 | mceusb_gen2_init(ir); |
| 983 | |
| 984 | mce_sync_in(ir, NULL, maxp); |
| 985 | |
| 986 | /* We've already done this on gen3 devices */ |
| 987 | if (!ir->flags.def_xmit_mask_set) { |
| 988 | mce_async_out(ir, GET_TX_BITMASK, sizeof(GET_TX_BITMASK)); |
| 989 | mce_sync_in(ir, NULL, maxp); |
| 990 | } |
| 991 | |
| 992 | usb_set_intfdata(intf, ir); |
| 993 | |
| 994 | dev_info(&intf->dev, "Registered %s on usb%d:%d\n", name, |
| 995 | dev->bus->busnum, dev->devnum); |
| 996 | |
| 997 | return 0; |
| 998 | |
| 999 | /* Error-handling path */ |
| 1000 | input_dev_fail: |
| 1001 | usb_free_urb(ir->urb_in); |
| 1002 | urb_in_alloc_fail: |
| 1003 | usb_free_coherent(dev, maxp, ir->buf_in, ir->dma_in); |
| 1004 | buf_in_alloc_fail: |
| 1005 | kfree(ir); |
| 1006 | mem_alloc_fail: |
| 1007 | dev_err(&intf->dev, "%s: device setup failed!\n", __func__); |
| 1008 | |
| 1009 | return -ENOMEM; |
| 1010 | } |
| 1011 | |
| 1012 | |
| 1013 | static void __devexit mceusb_dev_disconnect(struct usb_interface *intf) |
| 1014 | { |
| 1015 | struct usb_device *dev = interface_to_usbdev(intf); |
| 1016 | struct mceusb_dev *ir = usb_get_intfdata(intf); |
| 1017 | |
| 1018 | usb_set_intfdata(intf, NULL); |
| 1019 | |
| 1020 | if (!ir) |
| 1021 | return; |
| 1022 | |
| 1023 | ir->usbdev = NULL; |
Jarod Wilson | bd3881b | 2010-06-16 17:08:32 -0300 | [diff] [blame^] | 1024 | ir_input_unregister(ir->idev); |
Jarod Wilson | 66e8952 | 2010-06-01 17:32:08 -0300 | [diff] [blame] | 1025 | usb_kill_urb(ir->urb_in); |
| 1026 | usb_free_urb(ir->urb_in); |
| 1027 | usb_free_coherent(dev, ir->len_in, ir->buf_in, ir->dma_in); |
| 1028 | |
| 1029 | kfree(ir); |
| 1030 | } |
| 1031 | |
| 1032 | static int mceusb_dev_suspend(struct usb_interface *intf, pm_message_t message) |
| 1033 | { |
| 1034 | struct mceusb_dev *ir = usb_get_intfdata(intf); |
| 1035 | dev_info(ir->dev, "suspend\n"); |
| 1036 | usb_kill_urb(ir->urb_in); |
| 1037 | return 0; |
| 1038 | } |
| 1039 | |
| 1040 | static int mceusb_dev_resume(struct usb_interface *intf) |
| 1041 | { |
| 1042 | struct mceusb_dev *ir = usb_get_intfdata(intf); |
| 1043 | dev_info(ir->dev, "resume\n"); |
| 1044 | if (usb_submit_urb(ir->urb_in, GFP_ATOMIC)) |
| 1045 | return -EIO; |
| 1046 | return 0; |
| 1047 | } |
| 1048 | |
| 1049 | static struct usb_driver mceusb_dev_driver = { |
| 1050 | .name = DRIVER_NAME, |
| 1051 | .probe = mceusb_dev_probe, |
| 1052 | .disconnect = mceusb_dev_disconnect, |
| 1053 | .suspend = mceusb_dev_suspend, |
| 1054 | .resume = mceusb_dev_resume, |
| 1055 | .reset_resume = mceusb_dev_resume, |
| 1056 | .id_table = mceusb_dev_table |
| 1057 | }; |
| 1058 | |
| 1059 | static int __init mceusb_dev_init(void) |
| 1060 | { |
| 1061 | int ret; |
| 1062 | |
| 1063 | ret = usb_register(&mceusb_dev_driver); |
| 1064 | if (ret < 0) |
| 1065 | printk(KERN_ERR DRIVER_NAME |
| 1066 | ": usb register failed, result = %d\n", ret); |
| 1067 | |
| 1068 | return ret; |
| 1069 | } |
| 1070 | |
| 1071 | static void __exit mceusb_dev_exit(void) |
| 1072 | { |
| 1073 | usb_deregister(&mceusb_dev_driver); |
| 1074 | } |
| 1075 | |
| 1076 | module_init(mceusb_dev_init); |
| 1077 | module_exit(mceusb_dev_exit); |
| 1078 | |
| 1079 | MODULE_DESCRIPTION(DRIVER_DESC); |
| 1080 | MODULE_AUTHOR(DRIVER_AUTHOR); |
| 1081 | MODULE_LICENSE("GPL"); |
| 1082 | MODULE_DEVICE_TABLE(usb, mceusb_dev_table); |
| 1083 | |
| 1084 | module_param(debug, bool, S_IRUGO | S_IWUSR); |
| 1085 | MODULE_PARM_DESC(debug, "Debug enabled or not"); |