1/* cx25840 - Conexant CX25840 audio/video decoder driver 2 * 3 * Copyright (C) 2004 Ulf Eklund 4 * 5 * Based on the saa7115 driver and on the first verison of Chris Kennedy's 6 * cx25840 driver. 7 * 8 * Changes by Tyler Trafford <tatrafford@comcast.net> 9 * - cleanup/rewrite for V4L2 API (2005) 10 * 11 * VBI support by Hans Verkuil <hverkuil@xs4all.nl>. 12 * 13 * NTSC sliced VBI support by Christopher Neufeld <television@cneufeld.ca> 14 * with additional fixes by Hans Verkuil <hverkuil@xs4all.nl>. 15 * 16 * This program is free software; you can redistribute it and/or 17 * modify it under the terms of the GNU General Public License 18 * as published by the Free Software Foundation; either version 2 19 * of the License, or (at your option) any later version. 20 * 21 * This program is distributed in the hope that it will be useful, 22 * but WITHOUT ANY WARRANTY; without even the implied warranty of 23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 24 * GNU General Public License for more details. 25 * 26 * You should have received a copy of the GNU General Public License 27 * along with this program; if not, write to the Free Software 28 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 29 */ 30 31 32#include <linux/kernel.h> 33#include <linux/module.h> 34#include <linux/slab.h> 35#include <linux/videodev2.h> 36#include <linux/i2c.h> 37#include <media/v4l2-common.h> 38#include <media/v4l2-chip-ident.h> 39#include <media/cx25840.h> 40 41#include "cx25840-core.h" 42 43MODULE_DESCRIPTION("Conexant CX25840 audio/video decoder driver"); 44MODULE_AUTHOR("Ulf Eklund, Chris Kennedy, Hans Verkuil, Tyler Trafford"); 45MODULE_LICENSE("GPL"); 46 47static unsigned short normal_i2c[] = { 0x88 >> 1, I2C_CLIENT_END }; 48 49 50int cx25840_debug; 51 52module_param_named(debug,cx25840_debug, int, 0644); 53 54MODULE_PARM_DESC(debug, "Debugging messages [0=Off (default) 1=On]"); 55 56I2C_CLIENT_INSMOD; 57 58/* ----------------------------------------------------------------------- */ 59 60int cx25840_write(struct i2c_client *client, u16 addr, u8 value) 61{ 62 u8 buffer[3]; 63 buffer[0] = addr >> 8; 64 buffer[1] = addr & 0xff; 65 buffer[2] = value; 66 return i2c_master_send(client, buffer, 3); 67} 68 69int cx25840_write4(struct i2c_client *client, u16 addr, u32 value) 70{ 71 u8 buffer[6]; 72 buffer[0] = addr >> 8; 73 buffer[1] = addr & 0xff; 74 buffer[2] = value >> 24; 75 buffer[3] = (value >> 16) & 0xff; 76 buffer[4] = (value >> 8) & 0xff; 77 buffer[5] = value & 0xff; 78 return i2c_master_send(client, buffer, 6); 79} 80 81u8 cx25840_read(struct i2c_client * client, u16 addr) 82{ 83 u8 buffer[2]; 84 buffer[0] = addr >> 8; 85 buffer[1] = addr & 0xff; 86 87 if (i2c_master_send(client, buffer, 2) < 2) 88 return 0; 89 90 if (i2c_master_recv(client, buffer, 1) < 1) 91 return 0; 92 93 return buffer[0]; 94} 95 96u32 cx25840_read4(struct i2c_client * client, u16 addr) 97{ 98 u8 buffer[4]; 99 buffer[0] = addr >> 8; 100 buffer[1] = addr & 0xff; 101 102 if (i2c_master_send(client, buffer, 2) < 2) 103 return 0; 104 105 if (i2c_master_recv(client, buffer, 4) < 4) 106 return 0; 107 108 return (buffer[3] << 24) | (buffer[2] << 16) | 109 (buffer[1] << 8) | buffer[0]; 110} 111 112int cx25840_and_or(struct i2c_client *client, u16 addr, unsigned and_mask, 113 u8 or_value) 114{ 115 return cx25840_write(client, addr, 116 (cx25840_read(client, addr) & and_mask) | 117 or_value); 118} 119 120/* ----------------------------------------------------------------------- */ 121 122static int set_input(struct i2c_client *client, enum cx25840_video_input vid_input, 123 enum cx25840_audio_input aud_input); 124static void log_audio_status(struct i2c_client *client); 125static void log_video_status(struct i2c_client *client); 126 127/* ----------------------------------------------------------------------- */ 128 129static void init_dll1(struct i2c_client *client) 130{ 131 /* This is the Hauppauge sequence used to 132 * initialize the Delay Lock Loop 1 (ADC DLL). */ 133 cx25840_write(client, 0x159, 0x23); 134 cx25840_write(client, 0x15a, 0x87); 135 cx25840_write(client, 0x15b, 0x06); 136 cx25840_write(client, 0x159, 0xe1); 137 cx25840_write(client, 0x15a, 0x86); 138 cx25840_write(client, 0x159, 0xe0); 139 cx25840_write(client, 0x159, 0xe1); 140 cx25840_write(client, 0x15b, 0x10); 141} 142 143static void init_dll2(struct i2c_client *client) 144{ 145 /* This is the Hauppauge sequence used to 146 * initialize the Delay Lock Loop 2 (ADC DLL). */ 147 cx25840_write(client, 0x15d, 0xe3); 148 cx25840_write(client, 0x15e, 0x86); 149 cx25840_write(client, 0x15f, 0x06); 150 cx25840_write(client, 0x15d, 0xe1); 151 cx25840_write(client, 0x15d, 0xe0); 152 cx25840_write(client, 0x15d, 0xe1); 153} 154 155static void cx25836_initialize(struct i2c_client *client) 156{ 157 /* reset configuration is described on page 3-77 of the CX25836 datasheet */ 158 /* 2. */ 159 cx25840_and_or(client, 0x000, ~0x01, 0x01); 160 cx25840_and_or(client, 0x000, ~0x01, 0x00); 161 /* 3a. */ 162 cx25840_and_or(client, 0x15a, ~0x70, 0x00); 163 /* 3b. */ 164 cx25840_and_or(client, 0x15b, ~0x1e, 0x06); 165 /* 3c. */ 166 cx25840_and_or(client, 0x159, ~0x02, 0x02); 167 /* 3d. */ 168 /* There should be a 10-us delay here, but since the 169 i2c bus already has a 10-us delay we don't need to do 170 anything */ 171 /* 3e. */ 172 cx25840_and_or(client, 0x159, ~0x02, 0x00); 173 /* 3f. */ 174 cx25840_and_or(client, 0x159, ~0xc0, 0xc0); 175 /* 3g. */ 176 cx25840_and_or(client, 0x159, ~0x01, 0x00); 177 cx25840_and_or(client, 0x159, ~0x01, 0x01); 178 /* 3h. */ 179 cx25840_and_or(client, 0x15b, ~0x1e, 0x10); 180} 181 182static void cx25840_initialize(struct i2c_client *client, int loadfw) 183{ 184 struct cx25840_state *state = i2c_get_clientdata(client); 185 186 /* datasheet startup in numbered steps, refer to page 3-77 */ 187 /* 2. */ 188 cx25840_and_or(client, 0x803, ~0x10, 0x00); 189 /* The default of this register should be 4, but I get 0 instead. 190 * Set this register to 4 manually. */ 191 cx25840_write(client, 0x000, 0x04); 192 /* 3. */ 193 init_dll1(client); 194 init_dll2(client); 195 cx25840_write(client, 0x136, 0x0a); 196 /* 4. */ 197 cx25840_write(client, 0x13c, 0x01); 198 cx25840_write(client, 0x13c, 0x00); 199 /* 5. */ 200 if (loadfw) 201 cx25840_loadfw(client); 202 /* 6. */ 203 cx25840_write(client, 0x115, 0x8c); 204 cx25840_write(client, 0x116, 0x07); 205 cx25840_write(client, 0x118, 0x02); 206 /* 7. */ 207 cx25840_write(client, 0x4a5, 0x80); 208 cx25840_write(client, 0x4a5, 0x00); 209 cx25840_write(client, 0x402, 0x00); 210 /* 8. */ 211 cx25840_and_or(client, 0x401, ~0x18, 0); 212 cx25840_and_or(client, 0x4a2, ~0x10, 0x10); 213 /* steps 8c and 8d are done in change_input() */ 214 /* 10. */ 215 cx25840_write(client, 0x8d3, 0x1f); 216 cx25840_write(client, 0x8e3, 0x03); 217 218 cx25840_vbi_setup(client); 219 220 /* trial and error says these are needed to get audio */ 221 cx25840_write(client, 0x914, 0xa0); 222 cx25840_write(client, 0x918, 0xa0); 223 cx25840_write(client, 0x919, 0x01); 224 225 /* stereo prefered */ 226 cx25840_write(client, 0x809, 0x04); 227 /* AC97 shift */ 228 cx25840_write(client, 0x8cf, 0x0f); 229 230 /* (re)set input */ 231 set_input(client, state->vid_input, state->aud_input); 232 233 /* start microcontroller */ 234 cx25840_and_or(client, 0x803, ~0x10, 0x10); 235} 236 237/* ----------------------------------------------------------------------- */ 238 239static void input_change(struct i2c_client *client) 240{ 241 struct cx25840_state *state = i2c_get_clientdata(client); 242 v4l2_std_id std = cx25840_get_v4lstd(client); 243 244 /* Follow step 8c and 8d of section 3.16 in the cx25840 datasheet */ 245 if (std & V4L2_STD_SECAM) { 246 cx25840_write(client, 0x402, 0); 247 } 248 else { 249 cx25840_write(client, 0x402, 0x04); 250 cx25840_write(client, 0x49f, (std & V4L2_STD_NTSC) ? 0x14 : 0x11); 251 } 252 cx25840_and_or(client, 0x401, ~0x60, 0); 253 cx25840_and_or(client, 0x401, ~0x60, 0x60); 254 255 if (std & V4L2_STD_525_60) { 256 /* Certain Hauppauge PVR150 models have a hardware bug 257 that causes audio to drop out. For these models the 258 audio standard must be set explicitly. 259 To be precise: it affects cards with tuner models 260 85, 99 and 112 (model numbers from tveeprom). */ 261 int hw_fix = state->pvr150_workaround; 262 263 if (std == V4L2_STD_NTSC_M_JP) { 264 /* Japan uses EIAJ audio standard */ 265 cx25840_write(client, 0x808, hw_fix ? 0x2f : 0xf7); 266 } else if (std == V4L2_STD_NTSC_M_KR) { 267 /* South Korea uses A2 audio standard */ 268 cx25840_write(client, 0x808, hw_fix ? 0x3f : 0xf8); 269 } else { 270 /* Others use the BTSC audio standard */ 271 cx25840_write(client, 0x808, hw_fix ? 0x1f : 0xf6); 272 } 273 cx25840_write(client, 0x80b, 0x00); 274 } else if (std & V4L2_STD_PAL) { 275 /* Follow tuner change procedure for PAL */ 276 cx25840_write(client, 0x808, 0xff); 277 cx25840_write(client, 0x80b, 0x10); 278 } else if (std & V4L2_STD_SECAM) { 279 /* Select autodetect for SECAM */ 280 cx25840_write(client, 0x808, 0xff); 281 cx25840_write(client, 0x80b, 0x10); 282 } 283 284 if (cx25840_read(client, 0x803) & 0x10) { 285 /* restart audio decoder microcontroller */ 286 cx25840_and_or(client, 0x803, ~0x10, 0x00); 287 cx25840_and_or(client, 0x803, ~0x10, 0x10); 288 } 289} 290 291static int set_input(struct i2c_client *client, enum cx25840_video_input vid_input, 292 enum cx25840_audio_input aud_input) 293{ 294 struct cx25840_state *state = i2c_get_clientdata(client); 295 u8 is_composite = (vid_input >= CX25840_COMPOSITE1 && 296 vid_input <= CX25840_COMPOSITE8); 297 u8 reg; 298 299 v4l_dbg(1, cx25840_debug, client, "decoder set video input %d, audio input %d\n", 300 vid_input, aud_input); 301 302 if (is_composite) { 303 reg = 0xf0 + (vid_input - CX25840_COMPOSITE1); 304 } else { 305 int luma = vid_input & 0xf0; 306 int chroma = vid_input & 0xf00; 307 308 if ((vid_input & ~0xff0) || 309 luma < CX25840_SVIDEO_LUMA1 || luma > CX25840_SVIDEO_LUMA4 || 310 chroma < CX25840_SVIDEO_CHROMA4 || chroma > CX25840_SVIDEO_CHROMA8) { 311 v4l_err(client, "0x%04x is not a valid video input!\n", vid_input); 312 return -EINVAL; 313 } 314 reg = 0xf0 + ((luma - CX25840_SVIDEO_LUMA1) >> 4); 315 if (chroma >= CX25840_SVIDEO_CHROMA7) { 316 reg &= 0x3f; 317 reg |= (chroma - CX25840_SVIDEO_CHROMA7) >> 2; 318 } else { 319 reg &= 0xcf; 320 reg |= (chroma - CX25840_SVIDEO_CHROMA4) >> 4; 321 } 322 } 323 324 switch (aud_input) { 325 case CX25840_AUDIO_SERIAL: 326 /* do nothing, use serial audio input */ 327 break; 328 case CX25840_AUDIO4: reg &= ~0x30; break; 329 case CX25840_AUDIO5: reg &= ~0x30; reg |= 0x10; break; 330 case CX25840_AUDIO6: reg &= ~0x30; reg |= 0x20; break; 331 case CX25840_AUDIO7: reg &= ~0xc0; break; 332 case CX25840_AUDIO8: reg &= ~0xc0; reg |= 0x40; break; 333 334 default: 335 v4l_err(client, "0x%04x is not a valid audio input!\n", aud_input); 336 return -EINVAL; 337 } 338 339 cx25840_write(client, 0x103, reg); 340 /* Set INPUT_MODE to Composite (0) or S-Video (1) */ 341 cx25840_and_or(client, 0x401, ~0x6, is_composite ? 0 : 0x02); 342 /* Set CH_SEL_ADC2 to 1 if input comes from CH3 */ 343 cx25840_and_or(client, 0x102, ~0x2, (reg & 0x80) == 0 ? 2 : 0); 344 /* Set DUAL_MODE_ADC2 to 1 if input comes from both CH2 and CH3 */ 345 if ((reg & 0xc0) != 0xc0 && (reg & 0x30) != 0x30) 346 cx25840_and_or(client, 0x102, ~0x4, 4); 347 else 348 cx25840_and_or(client, 0x102, ~0x4, 0); 349 350 state->vid_input = vid_input; 351 state->aud_input = aud_input; 352 if (!state->is_cx25836) { 353 cx25840_audio_set_path(client); 354 input_change(client); 355 } 356 return 0; 357} 358 359/* ----------------------------------------------------------------------- */ 360 361static int set_v4lstd(struct i2c_client *client, v4l2_std_id std) 362{ 363 u8 fmt=0; /* zero is autodetect */ 364 365 /* First tests should be against specific std */ 366 if (std == V4L2_STD_NTSC_M_JP) { 367 fmt=0x2; 368 } else if (std == V4L2_STD_NTSC_443) { 369 fmt=0x3; 370 } else if (std == V4L2_STD_PAL_M) { 371 fmt=0x5; 372 } else if (std == V4L2_STD_PAL_N) { 373 fmt=0x6; 374 } else if (std == V4L2_STD_PAL_Nc) { 375 fmt=0x7; 376 } else if (std == V4L2_STD_PAL_60) { 377 fmt=0x8; 378 } else { 379 /* Then, test against generic ones */ 380 if (std & V4L2_STD_NTSC) { 381 fmt=0x1; 382 } else if (std & V4L2_STD_PAL) { 383 fmt=0x4; 384 } else if (std & V4L2_STD_SECAM) { 385 fmt=0xc; 386 } 387 } 388 389 v4l_dbg(1, cx25840_debug, client, "changing video std to fmt %i\n",fmt); 390 391 /* Follow step 9 of section 3.16 in the cx25840 datasheet. 392 Without this PAL may display a vertical ghosting effect. 393 This happens for example with the Yuan MPC622. */ 394 if (fmt >= 4 && fmt < 8) { 395 /* Set format to NTSC-M */ 396 cx25840_and_or(client, 0x400, ~0xf, 1); 397 /* Turn off LCOMB */ 398 cx25840_and_or(client, 0x47b, ~6, 0); 399 } 400 cx25840_and_or(client, 0x400, ~0xf, fmt); 401 cx25840_vbi_setup(client); 402 return 0; 403} 404 405v4l2_std_id cx25840_get_v4lstd(struct i2c_client * client) 406{ 407 struct cx25840_state *state = i2c_get_clientdata(client); 408 /* check VID_FMT_SEL first */ 409 u8 fmt = cx25840_read(client, 0x400) & 0xf; 410 411 if (!fmt) { 412 /* check AFD_FMT_STAT if set to autodetect */ 413 fmt = cx25840_read(client, 0x40d) & 0xf; 414 } 415 416 switch (fmt) { 417 case 0x1: 418 { 419 /* if the audio std is A2-M, then this is the South Korean 420 NTSC standard */ 421 if (!state->is_cx25836 && cx25840_read(client, 0x805) == 2) 422 return V4L2_STD_NTSC_M_KR; 423 return V4L2_STD_NTSC_M; 424 } 425 case 0x2: return V4L2_STD_NTSC_M_JP; 426 case 0x3: return V4L2_STD_NTSC_443; 427 case 0x4: return V4L2_STD_PAL; 428 case 0x5: return V4L2_STD_PAL_M; 429 case 0x6: return V4L2_STD_PAL_N; 430 case 0x7: return V4L2_STD_PAL_Nc; 431 case 0x8: return V4L2_STD_PAL_60; 432 case 0xc: return V4L2_STD_SECAM; 433 default: return V4L2_STD_UNKNOWN; 434 } 435} 436 437/* ----------------------------------------------------------------------- */ 438 439static int set_v4lctrl(struct i2c_client *client, struct v4l2_control *ctrl) 440{ 441 struct cx25840_state *state = i2c_get_clientdata(client); 442 443 switch (ctrl->id) { 444 case CX25840_CID_ENABLE_PVR150_WORKAROUND: 445 state->pvr150_workaround = ctrl->value; 446 set_input(client, state->vid_input, state->aud_input); 447 break; 448 449 case V4L2_CID_BRIGHTNESS: 450 if (ctrl->value < 0 || ctrl->value > 255) { 451 v4l_err(client, "invalid brightness setting %d\n", 452 ctrl->value); 453 return -ERANGE; 454 } 455 456 cx25840_write(client, 0x414, ctrl->value - 128); 457 break; 458 459 case V4L2_CID_CONTRAST: 460 if (ctrl->value < 0 || ctrl->value > 127) { 461 v4l_err(client, "invalid contrast setting %d\n", 462 ctrl->value); 463 return -ERANGE; 464 } 465 466 cx25840_write(client, 0x415, ctrl->value << 1); 467 break; 468 469 case V4L2_CID_SATURATION: 470 if (ctrl->value < 0 || ctrl->value > 127) { 471 v4l_err(client, "invalid saturation setting %d\n", 472 ctrl->value); 473 return -ERANGE; 474 } 475 476 cx25840_write(client, 0x420, ctrl->value << 1); 477 cx25840_write(client, 0x421, ctrl->value << 1); 478 break; 479 480 case V4L2_CID_HUE: 481 if (ctrl->value < -127 || ctrl->value > 127) { 482 v4l_err(client, "invalid hue setting %d\n", ctrl->value); 483 return -ERANGE; 484 } 485 486 cx25840_write(client, 0x422, ctrl->value); 487 break; 488 489 case V4L2_CID_AUDIO_VOLUME: 490 case V4L2_CID_AUDIO_BASS: 491 case V4L2_CID_AUDIO_TREBLE: 492 case V4L2_CID_AUDIO_BALANCE: 493 case V4L2_CID_AUDIO_MUTE: 494 if (state->is_cx25836) 495 return -EINVAL; 496 return cx25840_audio(client, VIDIOC_S_CTRL, ctrl); 497 498 default: 499 return -EINVAL; 500 } 501 502 return 0; 503} 504 505static int get_v4lctrl(struct i2c_client *client, struct v4l2_control *ctrl) 506{ 507 struct cx25840_state *state = i2c_get_clientdata(client); 508 509 switch (ctrl->id) { 510 case CX25840_CID_ENABLE_PVR150_WORKAROUND: 511 ctrl->value = state->pvr150_workaround; 512 break; 513 case V4L2_CID_BRIGHTNESS: 514 ctrl->value = (s8)cx25840_read(client, 0x414) + 128; 515 break; 516 case V4L2_CID_CONTRAST: 517 ctrl->value = cx25840_read(client, 0x415) >> 1; 518 break; 519 case V4L2_CID_SATURATION: 520 ctrl->value = cx25840_read(client, 0x420) >> 1; 521 break; 522 case V4L2_CID_HUE: 523 ctrl->value = (s8)cx25840_read(client, 0x422); 524 break; 525 case V4L2_CID_AUDIO_VOLUME: 526 case V4L2_CID_AUDIO_BASS: 527 case V4L2_CID_AUDIO_TREBLE: 528 case V4L2_CID_AUDIO_BALANCE: 529 case V4L2_CID_AUDIO_MUTE: 530 if (state->is_cx25836) 531 return -EINVAL; 532 return cx25840_audio(client, VIDIOC_G_CTRL, ctrl); 533 default: 534 return -EINVAL; 535 } 536 537 return 0; 538} 539 540/* ----------------------------------------------------------------------- */ 541 542static int get_v4lfmt(struct i2c_client *client, struct v4l2_format *fmt) 543{ 544 switch (fmt->type) { 545 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: 546 return cx25840_vbi(client, VIDIOC_G_FMT, fmt); 547 default: 548 return -EINVAL; 549 } 550 551 return 0; 552} 553 554static int set_v4lfmt(struct i2c_client *client, struct v4l2_format *fmt) 555{ 556 struct v4l2_pix_format *pix; 557 int HSC, VSC, Vsrc, Hsrc, filter, Vlines; 558 int is_50Hz = !(cx25840_get_v4lstd(client) & V4L2_STD_525_60); 559 560 switch (fmt->type) { 561 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 562 pix = &(fmt->fmt.pix); 563 564 Vsrc = (cx25840_read(client, 0x476) & 0x3f) << 4; 565 Vsrc |= (cx25840_read(client, 0x475) & 0xf0) >> 4; 566 567 Hsrc = (cx25840_read(client, 0x472) & 0x3f) << 4; 568 Hsrc |= (cx25840_read(client, 0x471) & 0xf0) >> 4; 569 570 Vlines = pix->height + (is_50Hz ? 4 : 7); 571 572 if ((pix->width * 16 < Hsrc) || (Hsrc < pix->width) || 573 (Vlines * 8 < Vsrc) || (Vsrc < Vlines)) { 574 v4l_err(client, "%dx%d is not a valid size!\n", 575 pix->width, pix->height); 576 return -ERANGE; 577 } 578 579 HSC = (Hsrc * (1 << 20)) / pix->width - (1 << 20); 580 VSC = (1 << 16) - (Vsrc * (1 << 9) / Vlines - (1 << 9)); 581 VSC &= 0x1fff; 582 583 if (pix->width >= 385) 584 filter = 0; 585 else if (pix->width > 192) 586 filter = 1; 587 else if (pix->width > 96) 588 filter = 2; 589 else 590 filter = 3; 591 592 v4l_dbg(1, cx25840_debug, client, "decoder set size %dx%d -> scale %ux%u\n", 593 pix->width, pix->height, HSC, VSC); 594 595 /* HSCALE=HSC */ 596 cx25840_write(client, 0x418, HSC & 0xff); 597 cx25840_write(client, 0x419, (HSC >> 8) & 0xff); 598 cx25840_write(client, 0x41a, HSC >> 16); 599 /* VSCALE=VSC */ 600 cx25840_write(client, 0x41c, VSC & 0xff); 601 cx25840_write(client, 0x41d, VSC >> 8); 602 /* VS_INTRLACE=1 VFILT=filter */ 603 cx25840_write(client, 0x41e, 0x8 | filter); 604 break; 605 606 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: 607 return cx25840_vbi(client, VIDIOC_S_FMT, fmt); 608 609 case V4L2_BUF_TYPE_VBI_CAPTURE: 610 return cx25840_vbi(client, VIDIOC_S_FMT, fmt); 611 612 default: 613 return -EINVAL; 614 } 615 616 return 0; 617} 618 619/* ----------------------------------------------------------------------- */ 620 621static int cx25840_command(struct i2c_client *client, unsigned int cmd, 622 void *arg) 623{ 624 struct cx25840_state *state = i2c_get_clientdata(client); 625 struct v4l2_tuner *vt = arg; 626 struct v4l2_routing *route = arg; 627 628 switch (cmd) { 629#ifdef CONFIG_VIDEO_ADV_DEBUG 630 /* ioctls to allow direct access to the 631 * cx25840 registers for testing */ 632 case VIDIOC_DBG_G_REGISTER: 633 case VIDIOC_DBG_S_REGISTER: 634 { 635 struct v4l2_register *reg = arg; 636 637 if (!v4l2_chip_match_i2c_client(client, reg->match_type, reg->match_chip)) 638 return -EINVAL; 639 if (!capable(CAP_SYS_ADMIN)) 640 return -EPERM; 641 if (cmd == VIDIOC_DBG_G_REGISTER) 642 reg->val = cx25840_read(client, reg->reg & 0x0fff); 643 else 644 cx25840_write(client, reg->reg & 0x0fff, reg->val & 0xff); 645 break; 646 } 647#endif 648 649 case VIDIOC_INT_DECODE_VBI_LINE: 650 return cx25840_vbi(client, cmd, arg); 651 652 case VIDIOC_INT_AUDIO_CLOCK_FREQ: 653 return cx25840_audio(client, cmd, arg); 654 655 case VIDIOC_STREAMON: 656 v4l_dbg(1, cx25840_debug, client, "enable output\n"); 657 cx25840_write(client, 0x115, state->is_cx25836 ? 0x0c : 0x8c); 658 cx25840_write(client, 0x116, state->is_cx25836 ? 0x04 : 0x07); 659 break; 660 661 case VIDIOC_STREAMOFF: 662 v4l_dbg(1, cx25840_debug, client, "disable output\n"); 663 cx25840_write(client, 0x115, 0x00); 664 cx25840_write(client, 0x116, 0x00); 665 break; 666 667 case VIDIOC_LOG_STATUS: 668 log_video_status(client); 669 if (!state->is_cx25836) 670 log_audio_status(client); 671 break; 672 673 case VIDIOC_G_CTRL: 674 return get_v4lctrl(client, (struct v4l2_control *)arg); 675 676 case VIDIOC_S_CTRL: 677 return set_v4lctrl(client, (struct v4l2_control *)arg); 678 679 case VIDIOC_QUERYCTRL: 680 { 681 struct v4l2_queryctrl *qc = arg; 682 683 switch (qc->id) { 684 case V4L2_CID_BRIGHTNESS: 685 case V4L2_CID_CONTRAST: 686 case V4L2_CID_SATURATION: 687 case V4L2_CID_HUE: 688 return v4l2_ctrl_query_fill_std(qc); 689 default: 690 break; 691 } 692 if (state->is_cx25836) 693 return -EINVAL; 694 695 switch (qc->id) { 696 case V4L2_CID_AUDIO_VOLUME: 697 case V4L2_CID_AUDIO_MUTE: 698 case V4L2_CID_AUDIO_BALANCE: 699 case V4L2_CID_AUDIO_BASS: 700 case V4L2_CID_AUDIO_TREBLE: 701 return v4l2_ctrl_query_fill_std(qc); 702 default: 703 return -EINVAL; 704 } 705 return -EINVAL; 706 } 707 708 case VIDIOC_G_STD: 709 *(v4l2_std_id *)arg = cx25840_get_v4lstd(client); 710 break; 711 712 case VIDIOC_S_STD: 713 state->radio = 0; 714 return set_v4lstd(client, *(v4l2_std_id *)arg); 715 716 case AUDC_SET_RADIO: 717 state->radio = 1; 718 break; 719 720 case VIDIOC_INT_G_VIDEO_ROUTING: 721 route->input = state->vid_input; 722 route->output = 0; 723 break; 724 725 case VIDIOC_INT_S_VIDEO_ROUTING: 726 return set_input(client, route->input, state->aud_input); 727 728 case VIDIOC_INT_G_AUDIO_ROUTING: 729 if (state->is_cx25836) 730 return -EINVAL; 731 route->input = state->aud_input; 732 route->output = 0; 733 break; 734 735 case VIDIOC_INT_S_AUDIO_ROUTING: 736 if (state->is_cx25836) 737 return -EINVAL; 738 return set_input(client, state->vid_input, route->input); 739 740 case VIDIOC_S_FREQUENCY: 741 if (!state->is_cx25836) { 742 input_change(client); 743 } 744 break; 745 746 case VIDIOC_G_TUNER: 747 { 748 u8 vpres = cx25840_read(client, 0x40e) & 0x20; 749 u8 mode; 750 int val = 0; 751 752 if (state->radio) 753 break; 754 755 vt->signal = vpres ? 0xffff : 0x0; 756 if (state->is_cx25836) 757 break; 758 759 vt->capability |= 760 V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LANG1 | 761 V4L2_TUNER_CAP_LANG2 | V4L2_TUNER_CAP_SAP; 762 763 mode = cx25840_read(client, 0x804); 764 765 /* get rxsubchans and audmode */ 766 if ((mode & 0xf) == 1) 767 val |= V4L2_TUNER_SUB_STEREO; 768 else 769 val |= V4L2_TUNER_SUB_MONO; 770 771 if (mode == 2 || mode == 4) 772 val = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; 773 774 if (mode & 0x10) 775 val |= V4L2_TUNER_SUB_SAP; 776 777 vt->rxsubchans = val; 778 vt->audmode = state->audmode; 779 break; 780 } 781 782 case VIDIOC_S_TUNER: 783 if (state->radio || state->is_cx25836) 784 break; 785 786 switch (vt->audmode) { 787 case V4L2_TUNER_MODE_MONO: 788 /* mono -> mono 789 stereo -> mono 790 bilingual -> lang1 */ 791 cx25840_and_or(client, 0x809, ~0xf, 0x00); 792 break; 793 case V4L2_TUNER_MODE_STEREO: 794 case V4L2_TUNER_MODE_LANG1: 795 /* mono -> mono 796 stereo -> stereo 797 bilingual -> lang1 */ 798 cx25840_and_or(client, 0x809, ~0xf, 0x04); 799 break; 800 case V4L2_TUNER_MODE_LANG1_LANG2: 801 /* mono -> mono 802 stereo -> stereo 803 bilingual -> lang1/lang2 */ 804 cx25840_and_or(client, 0x809, ~0xf, 0x07); 805 break; 806 case V4L2_TUNER_MODE_LANG2: 807 /* mono -> mono 808 stereo -> stereo 809 bilingual -> lang2 */ 810 cx25840_and_or(client, 0x809, ~0xf, 0x01); 811 break; 812 default: 813 return -EINVAL; 814 } 815 state->audmode = vt->audmode; 816 break; 817 818 case VIDIOC_G_FMT: 819 return get_v4lfmt(client, (struct v4l2_format *)arg); 820 821 case VIDIOC_S_FMT: 822 return set_v4lfmt(client, (struct v4l2_format *)arg); 823 824 case VIDIOC_INT_RESET: 825 if (state->is_cx25836) 826 cx25836_initialize(client); 827 else 828 cx25840_initialize(client, 0); 829 break; 830 831 case VIDIOC_G_CHIP_IDENT: 832 return v4l2_chip_ident_i2c_client(client, arg, state->id, state->rev); 833 834 default: 835 return -EINVAL; 836 } 837 838 return 0; 839} 840 841/* ----------------------------------------------------------------------- */ 842 843static struct i2c_driver i2c_driver_cx25840; 844 845static int cx25840_detect_client(struct i2c_adapter *adapter, int address, 846 int kind) 847{ 848 struct i2c_client *client; 849 struct cx25840_state *state; 850 u32 id; 851 u16 device_id; 852 853 /* Check if the adapter supports the needed features 854 * Not until kernel version 2.6.11 did the bit-algo 855 * correctly report that it would do an I2C-level xfer */ 856 if (!i2c_check_functionality(adapter, I2C_FUNC_I2C)) 857 return 0; 858 859 state = kzalloc(sizeof(struct cx25840_state), GFP_KERNEL); 860 if (state == 0) 861 return -ENOMEM; 862 863 client = &state->c; 864 client->addr = address; 865 client->adapter = adapter; 866 client->driver = &i2c_driver_cx25840; 867 snprintf(client->name, sizeof(client->name) - 1, "cx25840"); 868 869 v4l_dbg(1, cx25840_debug, client, "detecting cx25840 client on address 0x%x\n", address << 1); 870 871 device_id = cx25840_read(client, 0x101) << 8; 872 device_id |= cx25840_read(client, 0x100); 873 874 /* The high byte of the device ID should be 875 * 0x83 for the cx2583x and 0x84 for the cx2584x */ 876 if ((device_id & 0xff00) == 0x8300) { 877 id = V4L2_IDENT_CX25836 + ((device_id >> 4) & 0xf) - 6; 878 state->is_cx25836 = 1; 879 } 880 else if ((device_id & 0xff00) == 0x8400) { 881 id = V4L2_IDENT_CX25840 + ((device_id >> 4) & 0xf); 882 state->is_cx25836 = 0; 883 } 884 else { 885 v4l_dbg(1, cx25840_debug, client, "cx25840 not found\n"); 886 kfree(state); 887 return 0; 888 } 889 890 /* Note: revision '(device_id & 0x0f) == 2' was never built. The 891 marking skips from 0x1 == 22 to 0x3 == 23. */ 892 v4l_info(client, "cx25%3x-2%x found @ 0x%x (%s)\n", 893 (device_id & 0xfff0) >> 4, 894 (device_id & 0x0f) < 3 ? (device_id & 0x0f) + 1 : (device_id & 0x0f), 895 address << 1, adapter->name); 896 897 i2c_set_clientdata(client, state); 898 state->vid_input = CX25840_COMPOSITE7; 899 state->aud_input = CX25840_AUDIO8; 900 state->audclk_freq = 48000; 901 state->pvr150_workaround = 0; 902 state->audmode = V4L2_TUNER_MODE_LANG1; 903 state->vbi_line_offset = 8; 904 state->id = id; 905 state->rev = device_id; 906 907 i2c_attach_client(client); 908 909 if (state->is_cx25836) 910 cx25836_initialize(client); 911 else 912 cx25840_initialize(client, 1); 913 914 return 0; 915} 916 917static int cx25840_attach_adapter(struct i2c_adapter *adapter) 918{ 919 if (adapter->class & I2C_CLASS_TV_ANALOG) 920 return i2c_probe(adapter, &addr_data, &cx25840_detect_client); 921 return 0; 922} 923 924static int cx25840_detach_client(struct i2c_client *client) 925{ 926 struct cx25840_state *state = i2c_get_clientdata(client); 927 int err; 928 929 err = i2c_detach_client(client); 930 if (err) { 931 return err; 932 } 933 934 kfree(state); 935 936 return 0; 937} 938 939/* ----------------------------------------------------------------------- */ 940 941static struct i2c_driver i2c_driver_cx25840 = { 942 .driver = { 943 .name = "cx25840", 944 }, 945 .id = I2C_DRIVERID_CX25840, 946 .attach_adapter = cx25840_attach_adapter, 947 .detach_client = cx25840_detach_client, 948 .command = cx25840_command, 949}; 950 951 952static int __init m__init(void) 953{ 954 return i2c_add_driver(&i2c_driver_cx25840); 955} 956 957static void __exit m__exit(void) 958{ 959 i2c_del_driver(&i2c_driver_cx25840); 960} 961 962module_init(m__init); 963module_exit(m__exit); 964 965/* ----------------------------------------------------------------------- */ 966 967static void log_video_status(struct i2c_client *client) 968{ 969 static const char *const fmt_strs[] = { 970 "0x0", 971 "NTSC-M", "NTSC-J", "NTSC-4.43", 972 "PAL-BDGHI", "PAL-M", "PAL-N", "PAL-Nc", "PAL-60", 973 "0x9", "0xA", "0xB", 974 "SECAM", 975 "0xD", "0xE", "0xF" 976 }; 977 978 struct cx25840_state *state = i2c_get_clientdata(client); 979 u8 vidfmt_sel = cx25840_read(client, 0x400) & 0xf; 980 u8 gen_stat1 = cx25840_read(client, 0x40d); 981 u8 gen_stat2 = cx25840_read(client, 0x40e); 982 int vid_input = state->vid_input; 983 984 v4l_info(client, "Video signal: %spresent\n", 985 (gen_stat2 & 0x20) ? "" : "not "); 986 v4l_info(client, "Detected format: %s\n", 987 fmt_strs[gen_stat1 & 0xf]); 988 989 v4l_info(client, "Specified standard: %s\n", 990 vidfmt_sel ? fmt_strs[vidfmt_sel] : "automatic detection"); 991 992 if (vid_input >= CX25840_COMPOSITE1 && 993 vid_input <= CX25840_COMPOSITE8) { 994 v4l_info(client, "Specified video input: Composite %d\n", 995 vid_input - CX25840_COMPOSITE1 + 1); 996 } else { 997 v4l_info(client, "Specified video input: S-Video (Luma In%d, Chroma In%d)\n", 998 (vid_input & 0xf0) >> 4, (vid_input & 0xf00) >> 8); 999 } 1000 1001 v4l_info(client, "Specified audioclock freq: %d Hz\n", state->audclk_freq); 1002} 1003 1004/* ----------------------------------------------------------------------- */ 1005 1006static void log_audio_status(struct i2c_client *client) 1007{ 1008 struct cx25840_state *state = i2c_get_clientdata(client); 1009 u8 download_ctl = cx25840_read(client, 0x803); 1010 u8 mod_det_stat0 = cx25840_read(client, 0x804); 1011 u8 mod_det_stat1 = cx25840_read(client, 0x805); 1012 u8 audio_config = cx25840_read(client, 0x808); 1013 u8 pref_mode = cx25840_read(client, 0x809); 1014 u8 afc0 = cx25840_read(client, 0x80b); 1015 u8 mute_ctl = cx25840_read(client, 0x8d3); 1016 int aud_input = state->aud_input; 1017 char *p; 1018 1019 switch (mod_det_stat0) { 1020 case 0x00: p = "mono"; break; 1021 case 0x01: p = "stereo"; break; 1022 case 0x02: p = "dual"; break; 1023 case 0x04: p = "tri"; break; 1024 case 0x10: p = "mono with SAP"; break; 1025 case 0x11: p = "stereo with SAP"; break; 1026 case 0x12: p = "dual with SAP"; break; 1027 case 0x14: p = "tri with SAP"; break; 1028 case 0xfe: p = "forced mode"; break; 1029 default: p = "not defined"; 1030 } 1031 v4l_info(client, "Detected audio mode: %s\n", p); 1032 1033 switch (mod_det_stat1) { 1034 case 0x00: p = "not defined"; break; 1035 case 0x01: p = "EIAJ"; break; 1036 case 0x02: p = "A2-M"; break; 1037 case 0x03: p = "A2-BG"; break; 1038 case 0x04: p = "A2-DK1"; break; 1039 case 0x05: p = "A2-DK2"; break; 1040 case 0x06: p = "A2-DK3"; break; 1041 case 0x07: p = "A1 (6.0 MHz FM Mono)"; break; 1042 case 0x08: p = "AM-L"; break; 1043 case 0x09: p = "NICAM-BG"; break; 1044 case 0x0a: p = "NICAM-DK"; break; 1045 case 0x0b: p = "NICAM-I"; break; 1046 case 0x0c: p = "NICAM-L"; break; 1047 case 0x0d: p = "BTSC/EIAJ/A2-M Mono (4.5 MHz FMMono)"; break; 1048 case 0x0e: p = "IF FM Radio"; break; 1049 case 0x0f: p = "BTSC"; break; 1050 case 0x10: p = "high-deviation FM"; break; 1051 case 0x11: p = "very high-deviation FM"; break; 1052 case 0xfd: p = "unknown audio standard"; break; 1053 case 0xfe: p = "forced audio standard"; break; 1054 case 0xff: p = "no detected audio standard"; break; 1055 default: p = "not defined"; 1056 } 1057 v4l_info(client, "Detected audio standard: %s\n", p); 1058 v4l_info(client, "Audio muted: %s\n", 1059 (mute_ctl & 0x2) ? "yes" : "no"); 1060 v4l_info(client, "Audio microcontroller: %s\n", 1061 (download_ctl & 0x10) ? "running" : "stopped"); 1062 1063 switch (audio_config >> 4) { 1064 case 0x00: p = "undefined"; break; 1065 case 0x01: p = "BTSC"; break; 1066 case 0x02: p = "EIAJ"; break; 1067 case 0x03: p = "A2-M"; break; 1068 case 0x04: p = "A2-BG"; break; 1069 case 0x05: p = "A2-DK1"; break; 1070 case 0x06: p = "A2-DK2"; break; 1071 case 0x07: p = "A2-DK3"; break; 1072 case 0x08: p = "A1 (6.0 MHz FM Mono)"; break; 1073 case 0x09: p = "AM-L"; break; 1074 case 0x0a: p = "NICAM-BG"; break; 1075 case 0x0b: p = "NICAM-DK"; break; 1076 case 0x0c: p = "NICAM-I"; break; 1077 case 0x0d: p = "NICAM-L"; break; 1078 case 0x0e: p = "FM radio"; break; 1079 case 0x0f: p = "automatic detection"; break; 1080 default: p = "undefined"; 1081 } 1082 v4l_info(client, "Configured audio standard: %s\n", p); 1083 1084 if ((audio_config >> 4) < 0xF) { 1085 switch (audio_config & 0xF) { 1086 case 0x00: p = "MONO1 (LANGUAGE A/Mono L+R channel for BTSC, EIAJ, A2)"; break; 1087 case 0x01: p = "MONO2 (LANGUAGE B)"; break; 1088 case 0x02: p = "MONO3 (STEREO forced MONO)"; break; 1089 case 0x03: p = "MONO4 (NICAM ANALOG-Language C/Analog Fallback)"; break; 1090 case 0x04: p = "STEREO"; break; 1091 case 0x05: p = "DUAL1 (AB)"; break; 1092 case 0x06: p = "DUAL2 (AC) (FM)"; break; 1093 case 0x07: p = "DUAL3 (BC) (FM)"; break; 1094 case 0x08: p = "DUAL4 (AC) (AM)"; break; 1095 case 0x09: p = "DUAL5 (BC) (AM)"; break; 1096 case 0x0a: p = "SAP"; break; 1097 default: p = "undefined"; 1098 } 1099 v4l_info(client, "Configured audio mode: %s\n", p); 1100 } else { 1101 switch (audio_config & 0xF) { 1102 case 0x00: p = "BG"; break; 1103 case 0x01: p = "DK1"; break; 1104 case 0x02: p = "DK2"; break; 1105 case 0x03: p = "DK3"; break; 1106 case 0x04: p = "I"; break; 1107 case 0x05: p = "L"; break; 1108 case 0x06: p = "BTSC"; break; 1109 case 0x07: p = "EIAJ"; break; 1110 case 0x08: p = "A2-M"; break; 1111 case 0x09: p = "FM Radio"; break; 1112 case 0x0f: p = "automatic standard and mode detection"; break; 1113 default: p = "undefined"; 1114 } 1115 v4l_info(client, "Configured audio system: %s\n", p); 1116 } 1117 1118 if (aud_input) { 1119 v4l_info(client, "Specified audio input: Tuner (In%d)\n", aud_input); 1120 } else { 1121 v4l_info(client, "Specified audio input: External\n"); 1122 } 1123 1124 switch (pref_mode & 0xf) { 1125 case 0: p = "mono/language A"; break; 1126 case 1: p = "language B"; break; 1127 case 2: p = "language C"; break; 1128 case 3: p = "analog fallback"; break; 1129 case 4: p = "stereo"; break; 1130 case 5: p = "language AC"; break; 1131 case 6: p = "language BC"; break; 1132 case 7: p = "language AB"; break; 1133 default: p = "undefined"; 1134 } 1135 v4l_info(client, "Preferred audio mode: %s\n", p); 1136 1137 if ((audio_config & 0xf) == 0xf) { 1138 switch ((afc0 >> 3) & 0x3) { 1139 case 0: p = "system DK"; break; 1140 case 1: p = "system L"; break; 1141 case 2: p = "autodetect"; break; 1142 default: p = "undefined"; 1143 } 1144 v4l_info(client, "Selected 65 MHz format: %s\n", p); 1145 1146 switch (afc0 & 0x7) { 1147 case 0: p = "chroma"; break; 1148 case 1: p = "BTSC"; break; 1149 case 2: p = "EIAJ"; break; 1150 case 3: p = "A2-M"; break; 1151 case 4: p = "autodetect"; break; 1152 default: p = "undefined"; 1153 } 1154 v4l_info(client, "Selected 45 MHz format: %s\n", p); 1155 } 1156} 1157