| 1 | /* |
| 2 | * Linux driver for Technisat DVB-S/S2 USB 2.0 device |
| 3 | * |
| 4 | * Copyright (C) 2010 Patrick Boettcher, |
| 5 | * Kernel Labs Inc. PO Box 745, St James, NY 11780 |
| 6 | * |
| 7 | * Development was sponsored by Technisat Digital UK Limited, whose |
| 8 | * registered office is Witan Gate House 500 - 600 Witan Gate West, |
| 9 | * Milton Keynes, MK9 1SH |
| 10 | * |
| 11 | * This program is free software; you can redistribute it and/or |
| 12 | * modify it under the terms of the GNU General Public License as |
| 13 | * published by the Free Software Foundation; either version 2 of the |
| 14 | * License, or (at your option) any later version. |
| 15 | * |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; if not, write to the Free Software |
| 19 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 20 | * |
| 21 | * THIS PROGRAM IS PROVIDED "AS IS" AND BOTH THE COPYRIGHT HOLDER AND |
| 22 | * TECHNISAT DIGITAL UK LTD DISCLAIM ALL WARRANTIES WITH REGARD TO |
| 23 | * THIS PROGRAM INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY OR |
| 24 | * FITNESS FOR A PARTICULAR PURPOSE. NEITHER THE COPYRIGHT HOLDER |
| 25 | * NOR TECHNISAT DIGITAL UK LIMITED SHALL BE LIABLE FOR ANY SPECIAL, |
| 26 | * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER |
| 27 | * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION |
| 28 | * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR |
| 29 | * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS PROGRAM. See the |
| 30 | * GNU General Public License for more details. |
| 31 | */ |
| 32 | |
| 33 | #define DVB_USB_LOG_PREFIX "technisat-usb2" |
| 34 | #include "dvb-usb.h" |
| 35 | |
| 36 | #include "stv6110x.h" |
| 37 | #include "stv090x.h" |
| 38 | |
| 39 | /* module parameters */ |
| 40 | DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); |
| 41 | |
| 42 | static int debug; |
| 43 | module_param(debug, int, 0644); |
| 44 | MODULE_PARM_DESC(debug, |
| 45 | "set debugging level (bit-mask: 1=info,2=eeprom,4=i2c,8=rc)." \ |
| 46 | DVB_USB_DEBUG_STATUS); |
| 47 | |
| 48 | /* disables all LED control command and |
| 49 | * also does not start the signal polling thread */ |
| 50 | static int disable_led_control; |
| 51 | module_param(disable_led_control, int, 0444); |
| 52 | MODULE_PARM_DESC(disable_led_control, |
| 53 | "disable LED control of the device " |
| 54 | "(default: 0 - LED control is active)."); |
| 55 | |
| 56 | /* device private data */ |
| 57 | struct technisat_usb2_state { |
| 58 | struct dvb_usb_device *dev; |
| 59 | struct delayed_work green_led_work; |
| 60 | u8 power_state; |
| 61 | |
| 62 | u16 last_scan_code; |
| 63 | }; |
| 64 | |
| 65 | /* debug print helpers */ |
| 66 | #define deb_info(args...) dprintk(debug, 0x01, args) |
| 67 | #define deb_eeprom(args...) dprintk(debug, 0x02, args) |
| 68 | #define deb_i2c(args...) dprintk(debug, 0x04, args) |
| 69 | #define deb_rc(args...) dprintk(debug, 0x08, args) |
| 70 | |
| 71 | /* vendor requests */ |
| 72 | #define SET_IFCLK_TO_EXTERNAL_TSCLK_VENDOR_REQUEST 0xB3 |
| 73 | #define SET_FRONT_END_RESET_VENDOR_REQUEST 0xB4 |
| 74 | #define GET_VERSION_INFO_VENDOR_REQUEST 0xB5 |
| 75 | #define SET_GREEN_LED_VENDOR_REQUEST 0xB6 |
| 76 | #define SET_RED_LED_VENDOR_REQUEST 0xB7 |
| 77 | #define GET_IR_DATA_VENDOR_REQUEST 0xB8 |
| 78 | #define SET_LED_TIMER_DIVIDER_VENDOR_REQUEST 0xB9 |
| 79 | #define SET_USB_REENUMERATION 0xBA |
| 80 | |
| 81 | /* i2c-access methods */ |
| 82 | #define I2C_SPEED_100KHZ_BIT 0x40 |
| 83 | |
| 84 | #define I2C_STATUS_NAK 7 |
| 85 | #define I2C_STATUS_OK 8 |
| 86 | |
| 87 | static int technisat_usb2_i2c_access(struct usb_device *udev, |
| 88 | u8 device_addr, u8 *tx, u8 txlen, u8 *rx, u8 rxlen) |
| 89 | { |
| 90 | u8 b[64]; |
| 91 | int ret, actual_length; |
| 92 | |
| 93 | deb_i2c("i2c-access: %02x, tx: ", device_addr); |
| 94 | debug_dump(tx, txlen, deb_i2c); |
| 95 | deb_i2c(" "); |
| 96 | |
| 97 | if (txlen > 62) { |
| 98 | err("i2c TX buffer can't exceed 62 bytes (dev 0x%02x)", |
| 99 | device_addr); |
| 100 | txlen = 62; |
| 101 | } |
| 102 | if (rxlen > 62) { |
| 103 | err("i2c RX buffer can't exceed 62 bytes (dev 0x%02x)", |
| 104 | device_addr); |
| 105 | txlen = 62; |
| 106 | } |
| 107 | |
| 108 | b[0] = I2C_SPEED_100KHZ_BIT; |
| 109 | b[1] = device_addr << 1; |
| 110 | |
| 111 | if (rx != NULL) { |
| 112 | b[0] |= rxlen; |
| 113 | b[1] |= 1; |
| 114 | } |
| 115 | |
| 116 | memcpy(&b[2], tx, txlen); |
| 117 | ret = usb_bulk_msg(udev, |
| 118 | usb_sndbulkpipe(udev, 0x01), |
| 119 | b, 2 + txlen, |
| 120 | NULL, 1000); |
| 121 | |
| 122 | if (ret < 0) { |
| 123 | err("i2c-error: out failed %02x = %d", device_addr, ret); |
| 124 | return -ENODEV; |
| 125 | } |
| 126 | |
| 127 | ret = usb_bulk_msg(udev, |
| 128 | usb_rcvbulkpipe(udev, 0x01), |
| 129 | b, 64, &actual_length, 1000); |
| 130 | if (ret < 0) { |
| 131 | err("i2c-error: in failed %02x = %d", device_addr, ret); |
| 132 | return -ENODEV; |
| 133 | } |
| 134 | |
| 135 | if (b[0] != I2C_STATUS_OK) { |
| 136 | err("i2c-error: %02x = %d", device_addr, b[0]); |
| 137 | /* handle tuner-i2c-nak */ |
| 138 | if (!(b[0] == I2C_STATUS_NAK && |
| 139 | device_addr == 0x60 |
| 140 | /* && device_is_technisat_usb2 */)) |
| 141 | return -ENODEV; |
| 142 | } |
| 143 | |
| 144 | deb_i2c("status: %d, ", b[0]); |
| 145 | |
| 146 | if (rx != NULL) { |
| 147 | memcpy(rx, &b[2], rxlen); |
| 148 | |
| 149 | deb_i2c("rx (%d): ", rxlen); |
| 150 | debug_dump(rx, rxlen, deb_i2c); |
| 151 | } |
| 152 | |
| 153 | deb_i2c("\n"); |
| 154 | |
| 155 | return 0; |
| 156 | } |
| 157 | |
| 158 | static int technisat_usb2_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg *msg, |
| 159 | int num) |
| 160 | { |
| 161 | int ret = 0, i; |
| 162 | struct dvb_usb_device *d = i2c_get_adapdata(adap); |
| 163 | |
| 164 | /* Ensure nobody else hits the i2c bus while we're sending our |
| 165 | sequence of messages, (such as the remote control thread) */ |
| 166 | if (mutex_lock_interruptible(&d->i2c_mutex) < 0) |
| 167 | return -EAGAIN; |
| 168 | |
| 169 | for (i = 0; i < num; i++) { |
| 170 | if (i+1 < num && msg[i+1].flags & I2C_M_RD) { |
| 171 | ret = technisat_usb2_i2c_access(d->udev, msg[i+1].addr, |
| 172 | msg[i].buf, msg[i].len, |
| 173 | msg[i+1].buf, msg[i+1].len); |
| 174 | if (ret != 0) |
| 175 | break; |
| 176 | i++; |
| 177 | } else { |
| 178 | ret = technisat_usb2_i2c_access(d->udev, msg[i].addr, |
| 179 | msg[i].buf, msg[i].len, |
| 180 | NULL, 0); |
| 181 | if (ret != 0) |
| 182 | break; |
| 183 | } |
| 184 | } |
| 185 | |
| 186 | if (ret == 0) |
| 187 | ret = i; |
| 188 | |
| 189 | mutex_unlock(&d->i2c_mutex); |
| 190 | |
| 191 | return ret; |
| 192 | } |
| 193 | |
| 194 | static u32 technisat_usb2_i2c_func(struct i2c_adapter *adapter) |
| 195 | { |
| 196 | return I2C_FUNC_I2C; |
| 197 | } |
| 198 | |
| 199 | static struct i2c_algorithm technisat_usb2_i2c_algo = { |
| 200 | .master_xfer = technisat_usb2_i2c_xfer, |
| 201 | .functionality = technisat_usb2_i2c_func, |
| 202 | }; |
| 203 | |
| 204 | #if 0 |
| 205 | static void technisat_usb2_frontend_reset(struct usb_device *udev) |
| 206 | { |
| 207 | usb_control_msg(udev, usb_sndctrlpipe(udev, 0), |
| 208 | SET_FRONT_END_RESET_VENDOR_REQUEST, |
| 209 | USB_TYPE_VENDOR | USB_DIR_OUT, |
| 210 | 10, 0, |
| 211 | NULL, 0, 500); |
| 212 | } |
| 213 | #endif |
| 214 | |
| 215 | /* LED control */ |
| 216 | enum technisat_usb2_led_state { |
| 217 | LED_OFF, |
| 218 | LED_BLINK, |
| 219 | LED_ON, |
| 220 | LED_UNDEFINED |
| 221 | }; |
| 222 | |
| 223 | static int technisat_usb2_set_led(struct dvb_usb_device *d, int red, enum technisat_usb2_led_state state) |
| 224 | { |
| 225 | int ret; |
| 226 | |
| 227 | u8 led[8] = { |
| 228 | red ? SET_RED_LED_VENDOR_REQUEST : SET_GREEN_LED_VENDOR_REQUEST, |
| 229 | 0 |
| 230 | }; |
| 231 | |
| 232 | if (disable_led_control && state != LED_OFF) |
| 233 | return 0; |
| 234 | |
| 235 | switch (state) { |
| 236 | case LED_ON: |
| 237 | led[1] = 0x82; |
| 238 | break; |
| 239 | case LED_BLINK: |
| 240 | led[1] = 0x82; |
| 241 | if (red) { |
| 242 | led[2] = 0x02; |
| 243 | led[3] = 10; |
| 244 | led[4] = 10; |
| 245 | } else { |
| 246 | led[2] = 0xff; |
| 247 | led[3] = 50; |
| 248 | led[4] = 50; |
| 249 | } |
| 250 | led[5] = 1; |
| 251 | break; |
| 252 | |
| 253 | default: |
| 254 | case LED_OFF: |
| 255 | led[1] = 0x80; |
| 256 | break; |
| 257 | } |
| 258 | |
| 259 | if (mutex_lock_interruptible(&d->i2c_mutex) < 0) |
| 260 | return -EAGAIN; |
| 261 | |
| 262 | ret = usb_control_msg(d->udev, usb_sndctrlpipe(d->udev, 0), |
| 263 | red ? SET_RED_LED_VENDOR_REQUEST : SET_GREEN_LED_VENDOR_REQUEST, |
| 264 | USB_TYPE_VENDOR | USB_DIR_OUT, |
| 265 | 0, 0, |
| 266 | led, sizeof(led), 500); |
| 267 | |
| 268 | mutex_unlock(&d->i2c_mutex); |
| 269 | return ret; |
| 270 | } |
| 271 | |
| 272 | static int technisat_usb2_set_led_timer(struct dvb_usb_device *d, u8 red, u8 green) |
| 273 | { |
| 274 | int ret; |
| 275 | u8 b = 0; |
| 276 | |
| 277 | if (mutex_lock_interruptible(&d->i2c_mutex) < 0) |
| 278 | return -EAGAIN; |
| 279 | |
| 280 | ret = usb_control_msg(d->udev, usb_sndctrlpipe(d->udev, 0), |
| 281 | SET_LED_TIMER_DIVIDER_VENDOR_REQUEST, |
| 282 | USB_TYPE_VENDOR | USB_DIR_OUT, |
| 283 | (red << 8) | green, 0, |
| 284 | &b, 1, 500); |
| 285 | |
| 286 | mutex_unlock(&d->i2c_mutex); |
| 287 | |
| 288 | return ret; |
| 289 | } |
| 290 | |
| 291 | static void technisat_usb2_green_led_control(struct work_struct *work) |
| 292 | { |
| 293 | struct technisat_usb2_state *state = |
| 294 | container_of(work, struct technisat_usb2_state, green_led_work.work); |
| 295 | struct dvb_frontend *fe = state->dev->adapter[0].fe_adap[0].fe; |
| 296 | |
| 297 | if (state->power_state == 0) |
| 298 | goto schedule; |
| 299 | |
| 300 | if (fe != NULL) { |
| 301 | enum fe_status status; |
| 302 | |
| 303 | if (fe->ops.read_status(fe, &status) != 0) |
| 304 | goto schedule; |
| 305 | |
| 306 | if (status & FE_HAS_LOCK) { |
| 307 | u32 ber; |
| 308 | |
| 309 | if (fe->ops.read_ber(fe, &ber) != 0) |
| 310 | goto schedule; |
| 311 | |
| 312 | if (ber > 1000) |
| 313 | technisat_usb2_set_led(state->dev, 0, LED_BLINK); |
| 314 | else |
| 315 | technisat_usb2_set_led(state->dev, 0, LED_ON); |
| 316 | } else |
| 317 | technisat_usb2_set_led(state->dev, 0, LED_OFF); |
| 318 | } |
| 319 | |
| 320 | schedule: |
| 321 | schedule_delayed_work(&state->green_led_work, |
| 322 | msecs_to_jiffies(500)); |
| 323 | } |
| 324 | |
| 325 | /* method to find out whether the firmware has to be downloaded or not */ |
| 326 | static int technisat_usb2_identify_state(struct usb_device *udev, |
| 327 | struct dvb_usb_device_properties *props, |
| 328 | struct dvb_usb_device_description **desc, int *cold) |
| 329 | { |
| 330 | int ret; |
| 331 | u8 version[3]; |
| 332 | |
| 333 | /* first select the interface */ |
| 334 | if (usb_set_interface(udev, 0, 1) != 0) |
| 335 | err("could not set alternate setting to 0"); |
| 336 | else |
| 337 | info("set alternate setting"); |
| 338 | |
| 339 | *cold = 0; /* by default do not download a firmware - just in case something is wrong */ |
| 340 | |
| 341 | ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), |
| 342 | GET_VERSION_INFO_VENDOR_REQUEST, |
| 343 | USB_TYPE_VENDOR | USB_DIR_IN, |
| 344 | 0, 0, |
| 345 | version, sizeof(version), 500); |
| 346 | |
| 347 | if (ret < 0) |
| 348 | *cold = 1; |
| 349 | else { |
| 350 | info("firmware version: %d.%d", version[1], version[2]); |
| 351 | *cold = 0; |
| 352 | } |
| 353 | |
| 354 | return 0; |
| 355 | } |
| 356 | |
| 357 | /* power control */ |
| 358 | static int technisat_usb2_power_ctrl(struct dvb_usb_device *d, int level) |
| 359 | { |
| 360 | struct technisat_usb2_state *state = d->priv; |
| 361 | |
| 362 | state->power_state = level; |
| 363 | |
| 364 | if (disable_led_control) |
| 365 | return 0; |
| 366 | |
| 367 | /* green led is turned off in any case - will be turned on when tuning */ |
| 368 | technisat_usb2_set_led(d, 0, LED_OFF); |
| 369 | /* red led is turned on all the time */ |
| 370 | technisat_usb2_set_led(d, 1, LED_ON); |
| 371 | return 0; |
| 372 | } |
| 373 | |
| 374 | /* mac address reading - from the eeprom */ |
| 375 | #if 0 |
| 376 | static void technisat_usb2_eeprom_dump(struct dvb_usb_device *d) |
| 377 | { |
| 378 | u8 reg; |
| 379 | u8 b[16]; |
| 380 | int i, j; |
| 381 | |
| 382 | /* full EEPROM dump */ |
| 383 | for (j = 0; j < 256 * 4; j += 16) { |
| 384 | reg = j; |
| 385 | if (technisat_usb2_i2c_access(d->udev, 0x50 + j / 256, ®, 1, b, 16) != 0) |
| 386 | break; |
| 387 | |
| 388 | deb_eeprom("EEPROM: %01x%02x: ", j / 256, reg); |
| 389 | for (i = 0; i < 16; i++) |
| 390 | deb_eeprom("%02x ", b[i]); |
| 391 | deb_eeprom("\n"); |
| 392 | } |
| 393 | } |
| 394 | #endif |
| 395 | |
| 396 | static u8 technisat_usb2_calc_lrc(const u8 *b, u16 length) |
| 397 | { |
| 398 | u8 lrc = 0; |
| 399 | while (--length) |
| 400 | lrc ^= *b++; |
| 401 | return lrc; |
| 402 | } |
| 403 | |
| 404 | static int technisat_usb2_eeprom_lrc_read(struct dvb_usb_device *d, |
| 405 | u16 offset, u8 *b, u16 length, u8 tries) |
| 406 | { |
| 407 | u8 bo = offset & 0xff; |
| 408 | struct i2c_msg msg[] = { |
| 409 | { |
| 410 | .addr = 0x50 | ((offset >> 8) & 0x3), |
| 411 | .buf = &bo, |
| 412 | .len = 1 |
| 413 | }, { |
| 414 | .addr = 0x50 | ((offset >> 8) & 0x3), |
| 415 | .flags = I2C_M_RD, |
| 416 | .buf = b, |
| 417 | .len = length |
| 418 | } |
| 419 | }; |
| 420 | |
| 421 | while (tries--) { |
| 422 | int status; |
| 423 | |
| 424 | if (i2c_transfer(&d->i2c_adap, msg, 2) != 2) |
| 425 | break; |
| 426 | |
| 427 | status = |
| 428 | technisat_usb2_calc_lrc(b, length - 1) == b[length - 1]; |
| 429 | |
| 430 | if (status) |
| 431 | return 0; |
| 432 | } |
| 433 | |
| 434 | return -EREMOTEIO; |
| 435 | } |
| 436 | |
| 437 | #define EEPROM_MAC_START 0x3f8 |
| 438 | #define EEPROM_MAC_TOTAL 8 |
| 439 | static int technisat_usb2_read_mac_address(struct dvb_usb_device *d, |
| 440 | u8 mac[]) |
| 441 | { |
| 442 | u8 buf[EEPROM_MAC_TOTAL]; |
| 443 | |
| 444 | if (technisat_usb2_eeprom_lrc_read(d, EEPROM_MAC_START, |
| 445 | buf, EEPROM_MAC_TOTAL, 4) != 0) |
| 446 | return -ENODEV; |
| 447 | |
| 448 | memcpy(mac, buf, 6); |
| 449 | return 0; |
| 450 | } |
| 451 | |
| 452 | /* frontend attach */ |
| 453 | static int technisat_usb2_set_voltage(struct dvb_frontend *fe, |
| 454 | fe_sec_voltage_t voltage) |
| 455 | { |
| 456 | int i; |
| 457 | u8 gpio[3] = { 0 }; /* 0 = 2, 1 = 3, 2 = 4 */ |
| 458 | |
| 459 | gpio[2] = 1; /* high - voltage ? */ |
| 460 | |
| 461 | switch (voltage) { |
| 462 | case SEC_VOLTAGE_13: |
| 463 | gpio[0] = 1; |
| 464 | break; |
| 465 | case SEC_VOLTAGE_18: |
| 466 | gpio[0] = 1; |
| 467 | gpio[1] = 1; |
| 468 | break; |
| 469 | default: |
| 470 | case SEC_VOLTAGE_OFF: |
| 471 | break; |
| 472 | } |
| 473 | |
| 474 | for (i = 0; i < 3; i++) |
| 475 | if (stv090x_set_gpio(fe, i+2, 0, gpio[i], 0) != 0) |
| 476 | return -EREMOTEIO; |
| 477 | return 0; |
| 478 | } |
| 479 | |
| 480 | static struct stv090x_config technisat_usb2_stv090x_config = { |
| 481 | .device = STV0903, |
| 482 | .demod_mode = STV090x_SINGLE, |
| 483 | .clk_mode = STV090x_CLK_EXT, |
| 484 | |
| 485 | .xtal = 8000000, |
| 486 | .address = 0x68, |
| 487 | |
| 488 | .ts1_mode = STV090x_TSMODE_DVBCI, |
| 489 | .ts1_clk = 13400000, |
| 490 | .ts1_tei = 1, |
| 491 | |
| 492 | .repeater_level = STV090x_RPTLEVEL_64, |
| 493 | |
| 494 | .tuner_bbgain = 6, |
| 495 | }; |
| 496 | |
| 497 | static struct stv6110x_config technisat_usb2_stv6110x_config = { |
| 498 | .addr = 0x60, |
| 499 | .refclk = 16000000, |
| 500 | .clk_div = 2, |
| 501 | }; |
| 502 | |
| 503 | static int technisat_usb2_frontend_attach(struct dvb_usb_adapter *a) |
| 504 | { |
| 505 | struct usb_device *udev = a->dev->udev; |
| 506 | int ret; |
| 507 | |
| 508 | a->fe_adap[0].fe = dvb_attach(stv090x_attach, &technisat_usb2_stv090x_config, |
| 509 | &a->dev->i2c_adap, STV090x_DEMODULATOR_0); |
| 510 | |
| 511 | if (a->fe_adap[0].fe) { |
| 512 | struct stv6110x_devctl *ctl; |
| 513 | |
| 514 | ctl = dvb_attach(stv6110x_attach, |
| 515 | a->fe_adap[0].fe, |
| 516 | &technisat_usb2_stv6110x_config, |
| 517 | &a->dev->i2c_adap); |
| 518 | |
| 519 | if (ctl) { |
| 520 | technisat_usb2_stv090x_config.tuner_init = ctl->tuner_init; |
| 521 | technisat_usb2_stv090x_config.tuner_sleep = ctl->tuner_sleep; |
| 522 | technisat_usb2_stv090x_config.tuner_set_mode = ctl->tuner_set_mode; |
| 523 | technisat_usb2_stv090x_config.tuner_set_frequency = ctl->tuner_set_frequency; |
| 524 | technisat_usb2_stv090x_config.tuner_get_frequency = ctl->tuner_get_frequency; |
| 525 | technisat_usb2_stv090x_config.tuner_set_bandwidth = ctl->tuner_set_bandwidth; |
| 526 | technisat_usb2_stv090x_config.tuner_get_bandwidth = ctl->tuner_get_bandwidth; |
| 527 | technisat_usb2_stv090x_config.tuner_set_bbgain = ctl->tuner_set_bbgain; |
| 528 | technisat_usb2_stv090x_config.tuner_get_bbgain = ctl->tuner_get_bbgain; |
| 529 | technisat_usb2_stv090x_config.tuner_set_refclk = ctl->tuner_set_refclk; |
| 530 | technisat_usb2_stv090x_config.tuner_get_status = ctl->tuner_get_status; |
| 531 | |
| 532 | /* call the init function once to initialize |
| 533 | tuner's clock output divider and demod's |
| 534 | master clock */ |
| 535 | if (a->fe_adap[0].fe->ops.init) |
| 536 | a->fe_adap[0].fe->ops.init(a->fe_adap[0].fe); |
| 537 | |
| 538 | if (mutex_lock_interruptible(&a->dev->i2c_mutex) < 0) |
| 539 | return -EAGAIN; |
| 540 | |
| 541 | ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), |
| 542 | SET_IFCLK_TO_EXTERNAL_TSCLK_VENDOR_REQUEST, |
| 543 | USB_TYPE_VENDOR | USB_DIR_OUT, |
| 544 | 0, 0, |
| 545 | NULL, 0, 500); |
| 546 | mutex_unlock(&a->dev->i2c_mutex); |
| 547 | |
| 548 | if (ret != 0) |
| 549 | err("could not set IF_CLK to external"); |
| 550 | |
| 551 | a->fe_adap[0].fe->ops.set_voltage = technisat_usb2_set_voltage; |
| 552 | |
| 553 | /* if everything was successful assign a nice name to the frontend */ |
| 554 | strlcpy(a->fe_adap[0].fe->ops.info.name, a->dev->desc->name, |
| 555 | sizeof(a->fe_adap[0].fe->ops.info.name)); |
| 556 | } else { |
| 557 | dvb_frontend_detach(a->fe_adap[0].fe); |
| 558 | a->fe_adap[0].fe = NULL; |
| 559 | } |
| 560 | } |
| 561 | |
| 562 | technisat_usb2_set_led_timer(a->dev, 1, 1); |
| 563 | |
| 564 | return a->fe_adap[0].fe == NULL ? -ENODEV : 0; |
| 565 | } |
| 566 | |
| 567 | /* Remote control */ |
| 568 | |
| 569 | /* the device is giving providing raw IR-signals to the host mapping |
| 570 | * it only to one remote control is just the default implementation |
| 571 | */ |
| 572 | #define NOMINAL_IR_BIT_TRANSITION_TIME_US 889 |
| 573 | #define NOMINAL_IR_BIT_TIME_US (2 * NOMINAL_IR_BIT_TRANSITION_TIME_US) |
| 574 | |
| 575 | #define FIRMWARE_CLOCK_TICK 83333 |
| 576 | #define FIRMWARE_CLOCK_DIVISOR 256 |
| 577 | |
| 578 | #define IR_PERCENT_TOLERANCE 15 |
| 579 | |
| 580 | #define NOMINAL_IR_BIT_TRANSITION_TICKS ((NOMINAL_IR_BIT_TRANSITION_TIME_US * 1000 * 1000) / FIRMWARE_CLOCK_TICK) |
| 581 | #define NOMINAL_IR_BIT_TRANSITION_TICK_COUNT (NOMINAL_IR_BIT_TRANSITION_TICKS / FIRMWARE_CLOCK_DIVISOR) |
| 582 | |
| 583 | #define NOMINAL_IR_BIT_TIME_TICKS ((NOMINAL_IR_BIT_TIME_US * 1000 * 1000) / FIRMWARE_CLOCK_TICK) |
| 584 | #define NOMINAL_IR_BIT_TIME_TICK_COUNT (NOMINAL_IR_BIT_TIME_TICKS / FIRMWARE_CLOCK_DIVISOR) |
| 585 | |
| 586 | #define MINIMUM_IR_BIT_TRANSITION_TICK_COUNT (NOMINAL_IR_BIT_TRANSITION_TICK_COUNT - ((NOMINAL_IR_BIT_TRANSITION_TICK_COUNT * IR_PERCENT_TOLERANCE) / 100)) |
| 587 | #define MAXIMUM_IR_BIT_TRANSITION_TICK_COUNT (NOMINAL_IR_BIT_TRANSITION_TICK_COUNT + ((NOMINAL_IR_BIT_TRANSITION_TICK_COUNT * IR_PERCENT_TOLERANCE) / 100)) |
| 588 | |
| 589 | #define MINIMUM_IR_BIT_TIME_TICK_COUNT (NOMINAL_IR_BIT_TIME_TICK_COUNT - ((NOMINAL_IR_BIT_TIME_TICK_COUNT * IR_PERCENT_TOLERANCE) / 100)) |
| 590 | #define MAXIMUM_IR_BIT_TIME_TICK_COUNT (NOMINAL_IR_BIT_TIME_TICK_COUNT + ((NOMINAL_IR_BIT_TIME_TICK_COUNT * IR_PERCENT_TOLERANCE) / 100)) |
| 591 | |
| 592 | static int technisat_usb2_get_ir(struct dvb_usb_device *d) |
| 593 | { |
| 594 | u8 buf[62], *b; |
| 595 | int ret; |
| 596 | struct ir_raw_event ev; |
| 597 | |
| 598 | buf[0] = GET_IR_DATA_VENDOR_REQUEST; |
| 599 | buf[1] = 0x08; |
| 600 | buf[2] = 0x8f; |
| 601 | buf[3] = MINIMUM_IR_BIT_TRANSITION_TICK_COUNT; |
| 602 | buf[4] = MAXIMUM_IR_BIT_TIME_TICK_COUNT; |
| 603 | |
| 604 | if (mutex_lock_interruptible(&d->i2c_mutex) < 0) |
| 605 | return -EAGAIN; |
| 606 | ret = usb_control_msg(d->udev, usb_sndctrlpipe(d->udev, 0), |
| 607 | GET_IR_DATA_VENDOR_REQUEST, |
| 608 | USB_TYPE_VENDOR | USB_DIR_OUT, |
| 609 | 0, 0, |
| 610 | buf, 5, 500); |
| 611 | if (ret < 0) |
| 612 | goto unlock; |
| 613 | |
| 614 | buf[1] = 0; |
| 615 | buf[2] = 0; |
| 616 | ret = usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0), |
| 617 | GET_IR_DATA_VENDOR_REQUEST, |
| 618 | USB_TYPE_VENDOR | USB_DIR_IN, |
| 619 | 0x8080, 0, |
| 620 | buf, sizeof(buf), 500); |
| 621 | |
| 622 | unlock: |
| 623 | mutex_unlock(&d->i2c_mutex); |
| 624 | |
| 625 | if (ret < 0) |
| 626 | return ret; |
| 627 | |
| 628 | if (ret == 1) |
| 629 | return 0; /* no key pressed */ |
| 630 | |
| 631 | /* decoding */ |
| 632 | b = buf+1; |
| 633 | |
| 634 | #if 0 |
| 635 | deb_rc("RC: %d ", ret); |
| 636 | debug_dump(b, ret, deb_rc); |
| 637 | #endif |
| 638 | |
| 639 | ev.pulse = 0; |
| 640 | while (1) { |
| 641 | ev.pulse = !ev.pulse; |
| 642 | ev.duration = (*b * FIRMWARE_CLOCK_DIVISOR * FIRMWARE_CLOCK_TICK) / 1000; |
| 643 | ir_raw_event_store(d->rc_dev, &ev); |
| 644 | |
| 645 | b++; |
| 646 | if (*b == 0xff) { |
| 647 | ev.pulse = 0; |
| 648 | ev.duration = 888888*2; |
| 649 | ir_raw_event_store(d->rc_dev, &ev); |
| 650 | break; |
| 651 | } |
| 652 | } |
| 653 | |
| 654 | ir_raw_event_handle(d->rc_dev); |
| 655 | |
| 656 | return 1; |
| 657 | } |
| 658 | |
| 659 | static int technisat_usb2_rc_query(struct dvb_usb_device *d) |
| 660 | { |
| 661 | int ret = technisat_usb2_get_ir(d); |
| 662 | |
| 663 | if (ret < 0) |
| 664 | return ret; |
| 665 | |
| 666 | if (ret == 0) |
| 667 | return 0; |
| 668 | |
| 669 | if (!disable_led_control) |
| 670 | technisat_usb2_set_led(d, 1, LED_BLINK); |
| 671 | |
| 672 | return 0; |
| 673 | } |
| 674 | |
| 675 | /* DVB-USB and USB stuff follows */ |
| 676 | static struct usb_device_id technisat_usb2_id_table[] = { |
| 677 | { USB_DEVICE(USB_VID_TECHNISAT, USB_PID_TECHNISAT_USB2_DVB_S2) }, |
| 678 | { 0 } /* Terminating entry */ |
| 679 | }; |
| 680 | MODULE_DEVICE_TABLE(usb, technisat_usb2_id_table); |
| 681 | |
| 682 | /* device description */ |
| 683 | static struct dvb_usb_device_properties technisat_usb2_devices = { |
| 684 | .caps = DVB_USB_IS_AN_I2C_ADAPTER, |
| 685 | |
| 686 | .usb_ctrl = CYPRESS_FX2, |
| 687 | |
| 688 | .identify_state = technisat_usb2_identify_state, |
| 689 | .firmware = "dvb-usb-SkyStar_USB_HD_FW_v17_63.HEX.fw", |
| 690 | |
| 691 | .size_of_priv = sizeof(struct technisat_usb2_state), |
| 692 | |
| 693 | .i2c_algo = &technisat_usb2_i2c_algo, |
| 694 | |
| 695 | .power_ctrl = technisat_usb2_power_ctrl, |
| 696 | .read_mac_address = technisat_usb2_read_mac_address, |
| 697 | |
| 698 | .num_adapters = 1, |
| 699 | .adapter = { |
| 700 | { |
| 701 | .num_frontends = 1, |
| 702 | .fe = {{ |
| 703 | .frontend_attach = technisat_usb2_frontend_attach, |
| 704 | |
| 705 | .stream = { |
| 706 | .type = USB_ISOC, |
| 707 | .count = 8, |
| 708 | .endpoint = 0x2, |
| 709 | .u = { |
| 710 | .isoc = { |
| 711 | .framesperurb = 32, |
| 712 | .framesize = 2048, |
| 713 | .interval = 3, |
| 714 | } |
| 715 | } |
| 716 | }, |
| 717 | }}, |
| 718 | .size_of_priv = 0, |
| 719 | }, |
| 720 | }, |
| 721 | |
| 722 | .num_device_descs = 1, |
| 723 | .devices = { |
| 724 | { "Technisat SkyStar USB HD (DVB-S/S2)", |
| 725 | { &technisat_usb2_id_table[0], NULL }, |
| 726 | { NULL }, |
| 727 | }, |
| 728 | }, |
| 729 | |
| 730 | .rc.core = { |
| 731 | .rc_interval = 100, |
| 732 | .rc_codes = RC_MAP_TECHNISAT_USB2, |
| 733 | .module_name = "technisat-usb2", |
| 734 | .rc_query = technisat_usb2_rc_query, |
| 735 | .allowed_protos = RC_BIT_ALL, |
| 736 | .driver_type = RC_DRIVER_IR_RAW, |
| 737 | } |
| 738 | }; |
| 739 | |
| 740 | static int technisat_usb2_probe(struct usb_interface *intf, |
| 741 | const struct usb_device_id *id) |
| 742 | { |
| 743 | struct dvb_usb_device *dev; |
| 744 | |
| 745 | if (dvb_usb_device_init(intf, &technisat_usb2_devices, THIS_MODULE, |
| 746 | &dev, adapter_nr) != 0) |
| 747 | return -ENODEV; |
| 748 | |
| 749 | if (dev) { |
| 750 | struct technisat_usb2_state *state = dev->priv; |
| 751 | state->dev = dev; |
| 752 | |
| 753 | if (!disable_led_control) { |
| 754 | INIT_DELAYED_WORK(&state->green_led_work, |
| 755 | technisat_usb2_green_led_control); |
| 756 | schedule_delayed_work(&state->green_led_work, |
| 757 | msecs_to_jiffies(500)); |
| 758 | } |
| 759 | } |
| 760 | |
| 761 | return 0; |
| 762 | } |
| 763 | |
| 764 | static void technisat_usb2_disconnect(struct usb_interface *intf) |
| 765 | { |
| 766 | struct dvb_usb_device *dev = usb_get_intfdata(intf); |
| 767 | |
| 768 | /* work and stuff was only created when the device is is hot-state */ |
| 769 | if (dev != NULL) { |
| 770 | struct technisat_usb2_state *state = dev->priv; |
| 771 | if (state != NULL) |
| 772 | cancel_delayed_work_sync(&state->green_led_work); |
| 773 | } |
| 774 | |
| 775 | dvb_usb_device_exit(intf); |
| 776 | } |
| 777 | |
| 778 | static struct usb_driver technisat_usb2_driver = { |
| 779 | .name = "dvb_usb_technisat_usb2", |
| 780 | .probe = technisat_usb2_probe, |
| 781 | .disconnect = technisat_usb2_disconnect, |
| 782 | .id_table = technisat_usb2_id_table, |
| 783 | }; |
| 784 | |
| 785 | module_usb_driver(technisat_usb2_driver); |
| 786 | |
| 787 | MODULE_AUTHOR("Patrick Boettcher <pboettcher@kernellabs.com>"); |
| 788 | MODULE_DESCRIPTION("Driver for Technisat DVB-S/S2 USB 2.0 device"); |
| 789 | MODULE_VERSION("1.0"); |
| 790 | MODULE_LICENSE("GPL"); |