drivers/media/video/cx25840/cx25840-core.c

   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  * This program is free software; you can redistribute it and/or
  14  * modify it under the terms of the GNU General Public License
  15  * as published by the Free Software Foundation; either version 2
  16  * of the License, or (at your option) any later version.
  17  *
  18  * This program is distributed in the hope that it will be useful,
  19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21  * GNU General Public License for more details.
  22  *
  23  * You should have received a copy of the GNU General Public License
  24  * along with this program; if not, write to the Free Software
  25  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  26  */
  27
  28
  29 #include <linux/kernel.h>
  30 #include <linux/module.h>
  31 #include <linux/slab.h>
  32 #include <linux/videodev2.h>
  33 #include <linux/i2c.h>
  34 #include <media/v4l2-common.h>
  35
  36 #include "cx25840.h"
  37
  38 MODULE_DESCRIPTION("Conexant CX25840 audio/video decoder driver");
  39 MODULE_AUTHOR("Ulf Eklund, Chris Kennedy, Hans Verkuil, Tyler Trafford");
  40 MODULE_LICENSE("GPL");
  41
  42 static unsigned short normal_i2c[] = { 0x88 >> 1, I2C_CLIENT_END };
  43
  44
  45 static int cx25840_debug;
  46
  47 module_param_named(debug,cx25840_debug, int, 0644);
  48
  49 MODULE_PARM_DESC(debug, "Debugging messages [0=Off (default) 1=On]");
  50
  51 I2C_CLIENT_INSMOD;
  52
  53 /* ----------------------------------------------------------------------- */
  54
  55 int cx25840_write(struct i2c_client *client, u16 addr, u8 value)
  56 {
  57         u8 buffer[3];
  58         buffer[0] = addr >> 8;
  59         buffer[1] = addr & 0xff;
  60         buffer[2] = value;
  61         return i2c_master_send(client, buffer, 3);
  62 }
  63
  64 int cx25840_write4(struct i2c_client *client, u16 addr, u32 value)
  65 {
  66         u8 buffer[6];
  67         buffer[0] = addr >> 8;
  68         buffer[1] = addr & 0xff;
  69         buffer[2] = value >> 24;
  70         buffer[3] = (value >> 16) & 0xff;
  71         buffer[4] = (value >> 8) & 0xff;
  72         buffer[5] = value & 0xff;
  73         return i2c_master_send(client, buffer, 6);
  74 }
  75
  76 u8 cx25840_read(struct i2c_client * client, u16 addr)
  77 {
  78         u8 buffer[2];
  79         buffer[0] = addr >> 8;
  80         buffer[1] = addr & 0xff;
  81
  82         if (i2c_master_send(client, buffer, 2) < 2)
  83                 return 0;
  84
  85         if (i2c_master_recv(client, buffer, 1) < 1)
  86                 return 0;
  87
  88         return buffer[0];
  89 }
  90
  91 u32 cx25840_read4(struct i2c_client * client, u16 addr)
  92 {
  93         u8 buffer[4];
  94         buffer[0] = addr >> 8;
  95         buffer[1] = addr & 0xff;
  96
  97         if (i2c_master_send(client, buffer, 2) < 2)
  98                 return 0;
  99
 100         if (i2c_master_recv(client, buffer, 4) < 4)
 101                 return 0;
 102
 103         return (buffer[0] << 24) | (buffer[1] << 16) |
 104             (buffer[2] << 8) | buffer[3];
 105 }
 106
 107 int cx25840_and_or(struct i2c_client *client, u16 addr, u8 and_mask,
 108                    u8 or_value)
 109 {
 110         return cx25840_write(client, addr,
 111                              (cx25840_read(client, addr) & and_mask) |
 112                              or_value);
 113 }
 114
 115 /* ----------------------------------------------------------------------- */
 116
 117 static int set_input(struct i2c_client *client, enum cx25840_video_input vid_input,
 118                                                 enum cx25840_audio_input aud_input);
 119 static void log_status(struct i2c_client *client);
 120
 121 /* ----------------------------------------------------------------------- */
 122
 123 static void init_dll1(struct i2c_client *client)
 124 {
 125         /* This is the Hauppauge sequence used to
 126          * initialize the Delay Lock Loop 1 (ADC DLL). */
 127         cx25840_write(client, 0x159, 0x23);
 128         cx25840_write(client, 0x15a, 0x87);
 129         cx25840_write(client, 0x15b, 0x06);
 130         cx25840_write(client, 0x159, 0xe1);
 131         cx25840_write(client, 0x15a, 0x86);
 132         cx25840_write(client, 0x159, 0xe0);
 133         cx25840_write(client, 0x159, 0xe1);
 134         cx25840_write(client, 0x15b, 0x10);
 135 }
 136
 137 static void init_dll2(struct i2c_client *client)
 138 {
 139         /* This is the Hauppauge sequence used to
 140          * initialize the Delay Lock Loop 2 (ADC DLL). */
 141         cx25840_write(client, 0x15d, 0xe3);
 142         cx25840_write(client, 0x15e, 0x86);
 143         cx25840_write(client, 0x15f, 0x06);
 144         cx25840_write(client, 0x15d, 0xe1);
 145         cx25840_write(client, 0x15d, 0xe0);
 146         cx25840_write(client, 0x15d, 0xe1);
 147 }
 148
 149 static void cx25840_initialize(struct i2c_client *client, int loadfw)
 150 {
 151         struct cx25840_state *state = i2c_get_clientdata(client);
 152
 153         /* datasheet startup in numbered steps, refer to page 3-77 */
 154         /* 2. */
 155         cx25840_and_or(client, 0x803, ~0x10, 0x00);
 156         /* The default of this register should be 4, but I get 0 instead.
 157          * Set this register to 4 manually. */
 158         cx25840_write(client, 0x000, 0x04);
 159         /* 3. */
 160         init_dll1(client);
 161         init_dll2(client);
 162         cx25840_write(client, 0x136, 0x0a);
 163         /* 4. */
 164         cx25840_write(client, 0x13c, 0x01);
 165         cx25840_write(client, 0x13c, 0x00);
 166         /* 5. */
 167         if (loadfw)
 168                 cx25840_loadfw(client);
 169         /* 6. */
 170         cx25840_write(client, 0x115, 0x8c);
 171         cx25840_write(client, 0x116, 0x07);
 172         cx25840_write(client, 0x118, 0x02);
 173         /* 7. */
 174         cx25840_write(client, 0x4a5, 0x80);
 175         cx25840_write(client, 0x4a5, 0x00);
 176         cx25840_write(client, 0x402, 0x00);
 177         /* 8. */
 178         cx25840_and_or(client, 0x401, ~0x18, 0);
 179         cx25840_and_or(client, 0x4a2, ~0x10, 0x10);
 180         /* steps 8c and 8d are done in change_input() */
 181         /* 10. */
 182         cx25840_write(client, 0x8d3, 0x1f);
 183         cx25840_write(client, 0x8e3, 0x03);
 184
 185         cx25840_vbi_setup(client);
 186
 187         /* trial and error says these are needed to get audio */
 188         cx25840_write(client, 0x914, 0xa0);
 189         cx25840_write(client, 0x918, 0xa0);
 190         cx25840_write(client, 0x919, 0x01);
 191
 192         /* stereo prefered */
 193         cx25840_write(client, 0x809, 0x04);
 194         /* AC97 shift */
 195         cx25840_write(client, 0x8cf, 0x0f);
 196
 197         /* (re)set input */
 198         set_input(client, state->vid_input, state->aud_input);
 199
 200         /* start microcontroller */
 201         cx25840_and_or(client, 0x803, ~0x10, 0x10);
 202 }
 203
 204 /* ----------------------------------------------------------------------- */
 205
 206 static void input_change(struct i2c_client *client)
 207 {
 208         struct cx25840_state *state = i2c_get_clientdata(client);
 209         v4l2_std_id std = cx25840_get_v4lstd(client);
 210
 211         /* Follow step 8c and 8d of section 3.16 in the cx25840 datasheet */
 212         if (std & V4L2_STD_SECAM) {
 213                 cx25840_write(client, 0x402, 0);
 214         }
 215         else {
 216                 cx25840_write(client, 0x402, 0x04);
 217                 cx25840_write(client, 0x49f, (std & V4L2_STD_NTSC) ? 0x14 : 0x11);
 218         }
 219         cx25840_and_or(client, 0x401, ~0x60, 0);
 220         cx25840_and_or(client, 0x401, ~0x60, 0x60);
 221
 222         /* Note: perhaps V4L2_STD_PAL_M should be handled as V4L2_STD_NTSC
 223            instead of V4L2_STD_PAL. Someone needs to test this. */
 224         if (std & V4L2_STD_PAL) {
 225                 /* Follow tuner change procedure for PAL */
 226                 cx25840_write(client, 0x808, 0xff);
 227                 cx25840_write(client, 0x80b, 0x10);
 228         } else if (std & V4L2_STD_SECAM) {
 229                 /* Select autodetect for SECAM */
 230                 cx25840_write(client, 0x808, 0xff);
 231                 cx25840_write(client, 0x80b, 0x10);
 232         } else if (std & V4L2_STD_NTSC) {
 233                 /* Certain Hauppauge PVR150 models have a hardware bug
 234                    that causes audio to drop out. For these models the
 235                    audio standard must be set explicitly.
 236                    To be precise: it affects cards with tuner models
 237                    85, 99 and 112 (model numbers from tveeprom). */
 238                 int hw_fix = state->pvr150_workaround;
 239
 240                 if (std == V4L2_STD_NTSC_M_JP) {
 241                         /* Japan uses EIAJ audio standard */
 242                         cx25840_write(client, 0x808, hw_fix ? 0x2f : 0xf7);
 243                 } else if (std == V4L2_STD_NTSC_M_KR) {
 244                         /* South Korea uses A2 audio standard */
 245                         cx25840_write(client, 0x808, hw_fix ? 0x3f : 0xf8);
 246                 } else {
 247                         /* Others use the BTSC audio standard */
 248                         cx25840_write(client, 0x808, hw_fix ? 0x1f : 0xf6);
 249                 }
 250                 cx25840_write(client, 0x80b, 0x00);
 251         }
 252
 253         if (cx25840_read(client, 0x803) & 0x10) {
 254                 /* restart audio decoder microcontroller */
 255                 cx25840_and_or(client, 0x803, ~0x10, 0x00);
 256                 cx25840_and_or(client, 0x803, ~0x10, 0x10);
 257         }
 258 }
 259
 260 static int set_input(struct i2c_client *client, enum cx25840_video_input vid_input,
 261                                                 enum cx25840_audio_input aud_input)
 262 {
 263         struct cx25840_state *state = i2c_get_clientdata(client);
 264         u8 is_composite = (vid_input >= CX25840_COMPOSITE1 &&
 265                            vid_input <= CX25840_COMPOSITE8);
 266         u8 reg;
 267
 268         v4l_dbg(1, cx25840_debug, client, "decoder set video input %d, audio input %d\n",
 269                         vid_input, aud_input);
 270
 271         if (is_composite) {
 272                 reg = 0xf0 + (vid_input - CX25840_COMPOSITE1);
 273         } else {
 274                 int luma = vid_input & 0xf0;
 275                 int chroma = vid_input & 0xf00;
 276
 277                 if ((vid_input & ~0xff0) ||
 278                     luma < CX25840_SVIDEO_LUMA1 || luma > CX25840_SVIDEO_LUMA4 ||
 279                     chroma < CX25840_SVIDEO_CHROMA4 || chroma > CX25840_SVIDEO_CHROMA8) {
 280                         v4l_err(client, "0x%04x is not a valid video input!\n", vid_input);
 281                         return -EINVAL;
 282                 }
 283                 reg = 0xf0 + ((luma - CX25840_SVIDEO_LUMA1) >> 4);
 284                 if (chroma >= CX25840_SVIDEO_CHROMA7) {
 285                         reg &= 0x3f;
 286                         reg |= (chroma - CX25840_SVIDEO_CHROMA7) >> 2;
 287                 } else {
 288                         reg &= 0xcf;
 289                         reg |= (chroma - CX25840_SVIDEO_CHROMA4) >> 4;
 290                 }
 291         }
 292
 293         switch (aud_input) {
 294         case CX25840_AUDIO_SERIAL:
 295                 /* do nothing, use serial audio input */
 296                 break;
 297         case CX25840_AUDIO4: reg &= ~0x30; break;
 298         case CX25840_AUDIO5: reg &= ~0x30; reg |= 0x10; break;
 299         case CX25840_AUDIO6: reg &= ~0x30; reg |= 0x20; break;
 300         case CX25840_AUDIO7: reg &= ~0xc0; break;
 301         case CX25840_AUDIO8: reg &= ~0xc0; reg |= 0x40; break;
 302
 303         default:
 304                 v4l_err(client, "0x%04x is not a valid audio input!\n", aud_input);
 305                 return -EINVAL;
 306         }
 307
 308         cx25840_write(client, 0x103, reg);
 309         /* Set INPUT_MODE to Composite (0) or S-Video (1) */
 310         cx25840_and_or(client, 0x401, ~0x6, is_composite ? 0 : 0x02);
 311         /* Set CH_SEL_ADC2 to 1 if input comes from CH3 */
 312         cx25840_and_or(client, 0x102, ~0x2, (reg & 0x80) == 0 ? 2 : 0);
 313         /* Set DUAL_MODE_ADC2 to 1 if input comes from both CH2 and CH3 */
 314         if ((reg & 0xc0) != 0xc0 && (reg & 0x30) != 0x30)
 315                 cx25840_and_or(client, 0x102, ~0x4, 4);
 316         else
 317                 cx25840_and_or(client, 0x102, ~0x4, 0);
 318
 319         state->vid_input = vid_input;
 320         state->aud_input = aud_input;
 321         cx25840_audio_set_path(client);
 322         input_change(client);
 323         return 0;
 324 }
 325
 326 /* ----------------------------------------------------------------------- */
 327
 328 static int set_v4lstd(struct i2c_client *client, v4l2_std_id std)
 329 {
 330         u8 fmt=0;       /* zero is autodetect */
 331
 332         /* First tests should be against specific std */
 333         if (std == V4L2_STD_NTSC_M_JP) {
 334                 fmt=0x2;
 335         } else if (std == V4L2_STD_NTSC_443) {
 336                 fmt=0x3;
 337         } else if (std == V4L2_STD_PAL_M) {
 338                 fmt=0x5;
 339         } else if (std == V4L2_STD_PAL_N) {
 340                 fmt=0x6;
 341         } else if (std == V4L2_STD_PAL_Nc) {
 342                 fmt=0x7;
 343         } else if (std == V4L2_STD_PAL_60) {
 344                 fmt=0x8;
 345         } else {
 346                 /* Then, test against generic ones */
 347                 if (std & V4L2_STD_NTSC) {
 348                         fmt=0x1;
 349                 } else if (std & V4L2_STD_PAL) {
 350                         fmt=0x4;
 351                 } else if (std & V4L2_STD_SECAM) {
 352                         fmt=0xc;
 353                 }
 354         }
 355
 356         /* Follow step 9 of section 3.16 in the cx25840 datasheet.
 357            Without this PAL may display a vertical ghosting effect.
 358            This happens for example with the Yuan MPC622. */
 359         if (fmt >= 4 && fmt < 8) {
 360                 /* Set format to NTSC-M */
 361                 cx25840_and_or(client, 0x400, ~0xf, 1);
 362                 /* Turn off LCOMB */
 363                 cx25840_and_or(client, 0x47b, ~6, 0);
 364         }
 365         cx25840_and_or(client, 0x400, ~0xf, fmt);
 366         cx25840_vbi_setup(client);
 367         return 0;
 368 }
 369
 370 v4l2_std_id cx25840_get_v4lstd(struct i2c_client * client)
 371 {
 372         /* check VID_FMT_SEL first */
 373         u8 fmt = cx25840_read(client, 0x400) & 0xf;
 374
 375         if (!fmt) {
 376                 /* check AFD_FMT_STAT if set to autodetect */
 377                 fmt = cx25840_read(client, 0x40d) & 0xf;
 378         }
 379
 380         switch (fmt) {
 381         case 0x1:
 382         {
 383                 /* if the audio std is A2-M, then this is the South Korean
 384                    NTSC standard */
 385                 if (cx25840_read(client, 0x805) == 2)
 386                         return V4L2_STD_NTSC_M_KR;
 387                 return V4L2_STD_NTSC_M;
 388         }
 389         case 0x2: return V4L2_STD_NTSC_M_JP;
 390         case 0x3: return V4L2_STD_NTSC_443;
 391         case 0x4: return V4L2_STD_PAL;
 392         case 0x5: return V4L2_STD_PAL_M;
 393         case 0x6: return V4L2_STD_PAL_N;
 394         case 0x7: return V4L2_STD_PAL_Nc;
 395         case 0x8: return V4L2_STD_PAL_60;
 396         case 0xc: return V4L2_STD_SECAM;
 397         default: return V4L2_STD_UNKNOWN;
 398         }
 399 }
 400
 401 /* ----------------------------------------------------------------------- */
 402
 403 static int set_v4lctrl(struct i2c_client *client, struct v4l2_control *ctrl)
 404 {
 405         struct cx25840_state *state = i2c_get_clientdata(client);
 406
 407         switch (ctrl->id) {
 408         case CX25840_CID_ENABLE_PVR150_WORKAROUND:
 409                 state->pvr150_workaround = ctrl->value;
 410                 set_input(client, state->vid_input, state->aud_input);
 411                 break;
 412
 413         case V4L2_CID_BRIGHTNESS:
 414                 if (ctrl->value < 0 || ctrl->value > 255) {
 415                         v4l_err(client, "invalid brightness setting %d\n",
 416                                     ctrl->value);
 417                         return -ERANGE;
 418                 }
 419
 420                 cx25840_write(client, 0x414, ctrl->value - 128);
 421                 break;
 422
 423         case V4L2_CID_CONTRAST:
 424                 if (ctrl->value < 0 || ctrl->value > 127) {
 425                         v4l_err(client, "invalid contrast setting %d\n",
 426                                     ctrl->value);
 427                         return -ERANGE;
 428                 }
 429
 430                 cx25840_write(client, 0x415, ctrl->value << 1);
 431                 break;
 432
 433         case V4L2_CID_SATURATION:
 434                 if (ctrl->value < 0 || ctrl->value > 127) {
 435                         v4l_err(client, "invalid saturation setting %d\n",
 436                                     ctrl->value);
 437                         return -ERANGE;
 438                 }
 439
 440                 cx25840_write(client, 0x420, ctrl->value << 1);
 441                 cx25840_write(client, 0x421, ctrl->value << 1);
 442                 break;
 443
 444         case V4L2_CID_HUE:
 445                 if (ctrl->value < -127 || ctrl->value > 127) {
 446                         v4l_err(client, "invalid hue setting %d\n", ctrl->value);
 447                         return -ERANGE;
 448                 }
 449
 450                 cx25840_write(client, 0x422, ctrl->value);
 451                 break;
 452
 453         case V4L2_CID_AUDIO_VOLUME:
 454         case V4L2_CID_AUDIO_BASS:
 455         case V4L2_CID_AUDIO_TREBLE:
 456         case V4L2_CID_AUDIO_BALANCE:
 457         case V4L2_CID_AUDIO_MUTE:
 458                 return cx25840_audio(client, VIDIOC_S_CTRL, ctrl);
 459
 460         default:
 461                 return -EINVAL;
 462         }
 463
 464         return 0;
 465 }
 466
 467 static int get_v4lctrl(struct i2c_client *client, struct v4l2_control *ctrl)
 468 {
 469         struct cx25840_state *state = i2c_get_clientdata(client);
 470
 471         switch (ctrl->id) {
 472         case CX25840_CID_ENABLE_PVR150_WORKAROUND:
 473                 ctrl->value = state->pvr150_workaround;
 474                 break;
 475         case V4L2_CID_BRIGHTNESS:
 476                 ctrl->value = (s8)cx25840_read(client, 0x414) + 128;
 477                 break;
 478         case V4L2_CID_CONTRAST:
 479                 ctrl->value = cx25840_read(client, 0x415) >> 1;
 480                 break;
 481         case V4L2_CID_SATURATION:
 482                 ctrl->value = cx25840_read(client, 0x420) >> 1;
 483                 break;
 484         case V4L2_CID_HUE:
 485                 ctrl->value = (s8)cx25840_read(client, 0x422);
 486                 break;
 487         case V4L2_CID_AUDIO_VOLUME:
 488         case V4L2_CID_AUDIO_BASS:
 489         case V4L2_CID_AUDIO_TREBLE:
 490         case V4L2_CID_AUDIO_BALANCE:
 491         case V4L2_CID_AUDIO_MUTE:
 492                 return cx25840_audio(client, VIDIOC_G_CTRL, ctrl);
 493         default:
 494                 return -EINVAL;
 495         }
 496
 497         return 0;
 498 }
 499
 500 /* ----------------------------------------------------------------------- */
 501
 502 static int get_v4lfmt(struct i2c_client *client, struct v4l2_format *fmt)
 503 {
 504         switch (fmt->type) {
 505         case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
 506                 return cx25840_vbi(client, VIDIOC_G_FMT, fmt);
 507         default:
 508                 return -EINVAL;
 509         }
 510
 511         return 0;
 512 }
 513
 514 static int set_v4lfmt(struct i2c_client *client, struct v4l2_format *fmt)
 515 {
 516         struct v4l2_pix_format *pix;
 517         int HSC, VSC, Vsrc, Hsrc, filter, Vlines;
 518         int is_pal = !(cx25840_get_v4lstd(client) & V4L2_STD_NTSC);
 519
 520         switch (fmt->type) {
 521         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 522                 pix = &(fmt->fmt.pix);
 523
 524                 Vsrc = (cx25840_read(client, 0x476) & 0x3f) << 4;
 525                 Vsrc |= (cx25840_read(client, 0x475) & 0xf0) >> 4;
 526
 527                 Hsrc = (cx25840_read(client, 0x472) & 0x3f) << 4;
 528                 Hsrc |= (cx25840_read(client, 0x471) & 0xf0) >> 4;
 529
 530                 Vlines = pix->height + (is_pal ? 4 : 7);
 531
 532                 if ((pix->width * 16 < Hsrc) || (Hsrc < pix->width) ||
 533                     (Vlines * 8 < Vsrc) || (Vsrc < Vlines)) {
 534                         v4l_err(client, "%dx%d is not a valid size!\n",
 535                                     pix->width, pix->height);
 536                         return -ERANGE;
 537                 }
 538
 539                 HSC = (Hsrc * (1 << 20)) / pix->width - (1 << 20);
 540                 VSC = (1 << 16) - (Vsrc * (1 << 9) / Vlines - (1 << 9));
 541                 VSC &= 0x1fff;
 542
 543                 if (pix->width >= 385)
 544                         filter = 0;
 545                 else if (pix->width > 192)
 546                         filter = 1;
 547                 else if (pix->width > 96)
 548                         filter = 2;
 549                 else
 550                         filter = 3;
 551
 552                 v4l_dbg(1, cx25840_debug, client, "decoder set size %dx%d -> scale  %ux%u\n",
 553                             pix->width, pix->height, HSC, VSC);
 554
 555                 /* HSCALE=HSC */
 556                 cx25840_write(client, 0x418, HSC & 0xff);
 557                 cx25840_write(client, 0x419, (HSC >> 8) & 0xff);
 558                 cx25840_write(client, 0x41a, HSC >> 16);
 559                 /* VSCALE=VSC */
 560                 cx25840_write(client, 0x41c, VSC & 0xff);
 561                 cx25840_write(client, 0x41d, VSC >> 8);
 562                 /* VS_INTRLACE=1 VFILT=filter */
 563                 cx25840_write(client, 0x41e, 0x8 | filter);
 564                 break;
 565
 566         case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
 567                 return cx25840_vbi(client, VIDIOC_S_FMT, fmt);
 568
 569         case V4L2_BUF_TYPE_VBI_CAPTURE:
 570                 return cx25840_vbi(client, VIDIOC_S_FMT, fmt);
 571
 572         default:
 573                 return -EINVAL;
 574         }
 575
 576         return 0;
 577 }
 578
 579 /* ----------------------------------------------------------------------- */
 580
 581 static struct v4l2_queryctrl cx25840_qctrl[] = {
 582         {
 583                 .id            = V4L2_CID_BRIGHTNESS,
 584                 .type          = V4L2_CTRL_TYPE_INTEGER,
 585                 .name          = "Brightness",
 586                 .minimum       = 0,
 587                 .maximum       = 255,
 588                 .step          = 1,
 589                 .default_value = 128,
 590                 .flags         = 0,
 591         }, {
 592                 .id            = V4L2_CID_CONTRAST,
 593                 .type          = V4L2_CTRL_TYPE_INTEGER,
 594                 .name          = "Contrast",
 595                 .minimum       = 0,
 596                 .maximum       = 127,
 597                 .step          = 1,
 598                 .default_value = 64,
 599                 .flags         = 0,
 600         }, {
 601                 .id            = V4L2_CID_SATURATION,
 602                 .type          = V4L2_CTRL_TYPE_INTEGER,
 603                 .name          = "Saturation",
 604                 .minimum       = 0,
 605                 .maximum       = 127,
 606                 .step          = 1,
 607                 .default_value = 64,
 608                 .flags         = 0,
 609         }, {
 610                 .id            = V4L2_CID_HUE,
 611                 .type          = V4L2_CTRL_TYPE_INTEGER,
 612                 .name          = "Hue",
 613                 .minimum       = -128,
 614                 .maximum       = 127,
 615                 .step          = 1,
 616                 .default_value = 0,
 617                 .flags         = 0,
 618         }, {
 619                 .id            = V4L2_CID_AUDIO_VOLUME,
 620                 .type          = V4L2_CTRL_TYPE_INTEGER,
 621                 .name          = "Volume",
 622                 .minimum       = 0,
 623                 .maximum       = 65535,
 624                 .step          = 65535/100,
 625                 .default_value = 58880,
 626                 .flags         = 0,
 627         }, {
 628                 .id            = V4L2_CID_AUDIO_BALANCE,
 629                 .type          = V4L2_CTRL_TYPE_INTEGER,
 630                 .name          = "Balance",
 631                 .minimum       = 0,
 632                 .maximum       = 65535,
 633                 .step          = 65535/100,
 634                 .default_value = 32768,
 635                 .flags         = 0,
 636         }, {
 637                 .id            = V4L2_CID_AUDIO_MUTE,
 638                 .type          = V4L2_CTRL_TYPE_BOOLEAN,
 639                 .name          = "Mute",
 640                 .minimum       = 0,
 641                 .maximum       = 1,
 642                 .step          = 1,
 643                 .default_value = 1,
 644                 .flags         = 0,
 645         }, {
 646                 .id            = V4L2_CID_AUDIO_BASS,
 647                 .type          = V4L2_CTRL_TYPE_INTEGER,
 648                 .name          = "Bass",
 649                 .minimum       = 0,
 650                 .maximum       = 65535,
 651                 .step          = 65535/100,
 652                 .default_value = 32768,
 653         }, {
 654                 .id            = V4L2_CID_AUDIO_TREBLE,
 655                 .type          = V4L2_CTRL_TYPE_INTEGER,
 656                 .name          = "Treble",
 657                 .minimum       = 0,
 658                 .maximum       = 65535,
 659                 .step          = 65535/100,
 660                 .default_value = 32768,
 661         },
 662 };
 663
 664 /* ----------------------------------------------------------------------- */
 665
 666 static int cx25840_command(struct i2c_client *client, unsigned int cmd,
 667                            void *arg)
 668 {
 669         struct cx25840_state *state = i2c_get_clientdata(client);
 670         struct v4l2_tuner *vt = arg;
 671
 672         switch (cmd) {
 673 #ifdef CONFIG_VIDEO_ADV_DEBUG
 674         /* ioctls to allow direct access to the
 675          * cx25840 registers for testing */
 676         case VIDIOC_INT_G_REGISTER:
 677         {
 678                 struct v4l2_register *reg = arg;
 679
 680                 if (reg->i2c_id != I2C_DRIVERID_CX25840)
 681                         return -EINVAL;
 682                 reg->val = cx25840_read(client, reg->reg & 0x0fff);
 683                 break;
 684         }
 685
 686         case VIDIOC_INT_S_REGISTER:
 687         {
 688                 struct v4l2_register *reg = arg;
 689
 690                 if (reg->i2c_id != I2C_DRIVERID_CX25840)
 691                         return -EINVAL;
 692                 if (!capable(CAP_SYS_ADMIN))
 693                         return -EPERM;
 694                 cx25840_write(client, reg->reg & 0x0fff, reg->val & 0xff);
 695                 break;
 696         }
 697 #endif
 698
 699         case VIDIOC_INT_DECODE_VBI_LINE:
 700                 return cx25840_vbi(client, cmd, arg);
 701
 702         case VIDIOC_INT_AUDIO_CLOCK_FREQ:
 703                 return cx25840_audio(client, cmd, arg);
 704
 705         case VIDIOC_STREAMON:
 706                 v4l_dbg(1, cx25840_debug, client, "enable output\n");
 707                 cx25840_write(client, 0x115, 0x8c);
 708                 cx25840_write(client, 0x116, 0x07);
 709                 break;
 710
 711         case VIDIOC_STREAMOFF:
 712                 v4l_dbg(1, cx25840_debug, client, "disable output\n");
 713                 cx25840_write(client, 0x115, 0x00);
 714                 cx25840_write(client, 0x116, 0x00);
 715                 break;
 716
 717         case VIDIOC_LOG_STATUS:
 718                 log_status(client);
 719                 break;
 720
 721         case VIDIOC_G_CTRL:
 722                 return get_v4lctrl(client, (struct v4l2_control *)arg);
 723
 724         case VIDIOC_S_CTRL:
 725                 return set_v4lctrl(client, (struct v4l2_control *)arg);
 726
 727         case VIDIOC_QUERYCTRL:
 728         {
 729                 struct v4l2_queryctrl *qc = arg;
 730                 int i;
 731
 732                 for (i = 0; i < ARRAY_SIZE(cx25840_qctrl); i++)
 733                         if (qc->id && qc->id == cx25840_qctrl[i].id) {
 734                                 memcpy(qc, &cx25840_qctrl[i], sizeof(*qc));
 735                                 return 0;
 736                         }
 737                 return -EINVAL;
 738         }
 739
 740         case VIDIOC_G_STD:
 741                 *(v4l2_std_id *)arg = cx25840_get_v4lstd(client);
 742                 break;
 743
 744         case VIDIOC_S_STD:
 745                 state->radio = 0;
 746                 return set_v4lstd(client, *(v4l2_std_id *)arg);
 747
 748         case AUDC_SET_RADIO:
 749                 state->radio = 1;
 750                 break;
 751
 752         case VIDIOC_G_INPUT:
 753                 *(int *)arg = state->vid_input;
 754                 break;
 755
 756         case VIDIOC_S_INPUT:
 757                 return set_input(client, *(enum cx25840_video_input *)arg, state->aud_input);
 758
 759         case VIDIOC_S_AUDIO:
 760         {
 761                 struct v4l2_audio *input = arg;
 762
 763                 return set_input(client, state->vid_input, input->index);
 764         }
 765
 766         case VIDIOC_S_FREQUENCY:
 767                 input_change(client);
 768                 break;
 769
 770         case VIDIOC_G_TUNER:
 771         {
 772                 u8 mode = cx25840_read(client, 0x804);
 773                 u8 vpres = cx25840_read(client, 0x80a) & 0x10;
 774                 int val = 0;
 775
 776                 if (state->radio)
 777                         break;
 778
 779                 vt->capability |=
 780                     V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LANG1 |
 781                     V4L2_TUNER_CAP_LANG2 | V4L2_TUNER_CAP_SAP;
 782
 783                 vt->signal = vpres ? 0xffff : 0x0;
 784
 785                 /* get rxsubchans and audmode */
 786                 if ((mode & 0xf) == 1)
 787                         val |= V4L2_TUNER_SUB_STEREO;
 788                 else
 789                         val |= V4L2_TUNER_SUB_MONO;
 790
 791                 if (mode == 2 || mode == 4)
 792                         val = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
 793
 794                 if (mode & 0x10)
 795                         val |= V4L2_TUNER_SUB_SAP;
 796
 797                 vt->rxsubchans = val;
 798                 vt->audmode = state->audmode;
 799                 break;
 800         }
 801
 802         case VIDIOC_S_TUNER:
 803                 if (state->radio)
 804                         break;
 805
 806                 switch (vt->audmode) {
 807                 case V4L2_TUNER_MODE_MONO:
 808                         /* mono      -> mono
 809                            stereo    -> mono
 810                            bilingual -> lang1 */
 811                         cx25840_and_or(client, 0x809, ~0xf, 0x00);
 812                         break;
 813                 case V4L2_TUNER_MODE_LANG1:
 814                         /* mono      -> mono
 815                            stereo    -> stereo
 816                            bilingual -> lang1 */
 817                         cx25840_and_or(client, 0x809, ~0xf, 0x04);
 818                         break;
 819                 case V4L2_TUNER_MODE_STEREO:
 820                         /* mono      -> mono
 821                            stereo    -> stereo
 822                            bilingual -> lang1/lang2 */
 823                         cx25840_and_or(client, 0x809, ~0xf, 0x07);
 824                         break;
 825                 case V4L2_TUNER_MODE_LANG2:
 826                         /* mono      -> mono
 827                            stereo    ->stereo
 828                            bilingual -> lang2 */
 829                         cx25840_and_or(client, 0x809, ~0xf, 0x01);
 830                         break;
 831                 default:
 832                         return -EINVAL;
 833                 }
 834                 state->audmode = vt->audmode;
 835                 break;
 836
 837         case VIDIOC_G_FMT:
 838                 return get_v4lfmt(client, (struct v4l2_format *)arg);
 839
 840         case VIDIOC_S_FMT:
 841                 return set_v4lfmt(client, (struct v4l2_format *)arg);
 842
 843         case VIDIOC_INT_RESET:
 844                 cx25840_initialize(client, 0);
 845                 break;
 846
 847         case VIDIOC_INT_G_CHIP_IDENT:
 848                 *(enum v4l2_chip_ident *)arg =
 849                         V4L2_IDENT_CX25840 + ((cx25840_read(client, 0x100) >> 4) & 0xf);
 850                 break;
 851
 852         default:
 853                 return -EINVAL;
 854         }
 855
 856         return 0;
 857 }
 858
 859 /* ----------------------------------------------------------------------- */
 860
 861 static struct i2c_driver i2c_driver_cx25840;
 862
 863 static int cx25840_detect_client(struct i2c_adapter *adapter, int address,
 864                                  int kind)
 865 {
 866         struct i2c_client *client;
 867         struct cx25840_state *state;
 868         u16 device_id;
 869
 870         /* Check if the adapter supports the needed features
 871          * Not until kernel version 2.6.11 did the bit-algo
 872          * correctly report that it would do an I2C-level xfer */
 873         if (!i2c_check_functionality(adapter, I2C_FUNC_I2C))
 874                 return 0;
 875
 876         client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
 877         if (client == 0)
 878                 return -ENOMEM;
 879
 880         client->addr = address;
 881         client->adapter = adapter;
 882         client->driver = &i2c_driver_cx25840;
 883         snprintf(client->name, sizeof(client->name) - 1, "cx25840");
 884
 885         v4l_dbg(1, cx25840_debug, client, "detecting cx25840 client on address 0x%x\n", address << 1);
 886
 887         device_id = cx25840_read(client, 0x101) << 8;
 888         device_id |= cx25840_read(client, 0x100);
 889
 890         /* The high byte of the device ID should be
 891          * 0x84 if chip is present */
 892         if ((device_id & 0xff00) != 0x8400) {
 893                 v4l_dbg(1, cx25840_debug, client, "cx25840 not found\n");
 894                 kfree(client);
 895                 return 0;
 896         }
 897
 898         v4l_info(client, "cx25%3x-2%x found @ 0x%x (%s)\n",
 899                     (device_id & 0xfff0) >> 4,
 900                     (device_id & 0x0f) < 3 ? (device_id & 0x0f) + 1 : 3,
 901                     address << 1, adapter->name);
 902
 903         state = kmalloc(sizeof(struct cx25840_state), GFP_KERNEL);
 904         if (state == NULL) {
 905                 kfree(client);
 906                 return -ENOMEM;
 907         }
 908
 909         i2c_set_clientdata(client, state);
 910         memset(state, 0, sizeof(struct cx25840_state));
 911         state->vid_input = CX25840_COMPOSITE7;
 912         state->aud_input = CX25840_AUDIO8;
 913         state->audclk_freq = 48000;
 914         state->pvr150_workaround = 0;
 915         state->audmode = V4L2_TUNER_MODE_LANG1;
 916
 917         cx25840_initialize(client, 1);
 918
 919         i2c_attach_client(client);
 920
 921         return 0;
 922 }
 923
 924 static int cx25840_attach_adapter(struct i2c_adapter *adapter)
 925 {
 926         if (adapter->class & I2C_CLASS_TV_ANALOG)
 927                 return i2c_probe(adapter, &addr_data, &cx25840_detect_client);
 928         return 0;
 929 }
 930
 931 static int cx25840_detach_client(struct i2c_client *client)
 932 {
 933         struct cx25840_state *state = i2c_get_clientdata(client);
 934         int err;
 935
 936         err = i2c_detach_client(client);
 937         if (err) {
 938                 return err;
 939         }
 940
 941         kfree(state);
 942         kfree(client);
 943
 944         return 0;
 945 }
 946
 947 /* ----------------------------------------------------------------------- */
 948
 949 static struct i2c_driver i2c_driver_cx25840 = {
 950         .driver = {
 951                 .name = "cx25840",
 952         },
 953         .id = I2C_DRIVERID_CX25840,
 954         .attach_adapter = cx25840_attach_adapter,
 955         .detach_client = cx25840_detach_client,
 956         .command = cx25840_command,
 957 };
 958
 959
 960 static int __init m__init(void)
 961 {
 962         return i2c_add_driver(&i2c_driver_cx25840);
 963 }
 964
 965 static void __exit m__exit(void)
 966 {
 967         i2c_del_driver(&i2c_driver_cx25840);
 968 }
 969
 970 module_init(m__init);
 971 module_exit(m__exit);
 972
 973 /* ----------------------------------------------------------------------- */
 974
 975 static void log_status(struct i2c_client *client)
 976 {
 977         static const char *const fmt_strs[] = {
 978                 "0x0",
 979                 "NTSC-M", "NTSC-J", "NTSC-4.43",
 980                 "PAL-BDGHI", "PAL-M", "PAL-N", "PAL-Nc", "PAL-60",
 981                 "0x9", "0xA", "0xB",
 982                 "SECAM",
 983                 "0xD", "0xE", "0xF"
 984         };
 985
 986         struct cx25840_state *state = i2c_get_clientdata(client);
 987         u8 microctrl_vidfmt = cx25840_read(client, 0x80a);
 988         u8 vidfmt_sel = cx25840_read(client, 0x400) & 0xf;
 989         u8 gen_stat1 = cx25840_read(client, 0x40d);
 990         u8 download_ctl = cx25840_read(client, 0x803);
 991         u8 mod_det_stat0 = cx25840_read(client, 0x804);
 992         u8 mod_det_stat1 = cx25840_read(client, 0x805);
 993         u8 audio_config = cx25840_read(client, 0x808);
 994         u8 pref_mode = cx25840_read(client, 0x809);
 995         u8 afc0 = cx25840_read(client, 0x80b);
 996         u8 mute_ctl = cx25840_read(client, 0x8d3);
 997         int vid_input = state->vid_input;
 998         int aud_input = state->aud_input;
 999         char *p;
1000
1001         v4l_info(client, "Video signal:              %spresent\n",
1002                     (microctrl_vidfmt & 0x10) ? "" : "not ");
1003         v4l_info(client, "Detected format:           %s\n",
1004                     fmt_strs[gen_stat1 & 0xf]);
1005
1006         switch (mod_det_stat0) {
1007         case 0x00: p = "mono"; break;
1008         case 0x01: p = "stereo"; break;
1009         case 0x02: p = "dual"; break;
1010         case 0x04: p = "tri"; break;
1011         case 0x10: p = "mono with SAP"; break;
1012         case 0x11: p = "stereo with SAP"; break;
1013         case 0x12: p = "dual with SAP"; break;
1014         case 0x14: p = "tri with SAP"; break;
1015         case 0xfe: p = "forced mode"; break;
1016         default: p = "not defined";
1017         }
1018         v4l_info(client, "Detected audio mode:       %s\n", p);
1019
1020         switch (mod_det_stat1) {
1021         case 0x00: p = "not defined"; break;
1022         case 0x01: p = "EIAJ"; break;
1023         case 0x02: p = "A2-M"; break;
1024         case 0x03: p = "A2-BG"; break;
1025         case 0x04: p = "A2-DK1"; break;
1026         case 0x05: p = "A2-DK2"; break;
1027         case 0x06: p = "A2-DK3"; break;
1028         case 0x07: p = "A1 (6.0 MHz FM Mono)"; break;
1029         case 0x08: p = "AM-L"; break;
1030         case 0x09: p = "NICAM-BG"; break;
1031         case 0x0a: p = "NICAM-DK"; break;
1032         case 0x0b: p = "NICAM-I"; break;
1033         case 0x0c: p = "NICAM-L"; break;
1034         case 0x0d: p = "BTSC/EIAJ/A2-M Mono (4.5 MHz FMMono)"; break;
1035         case 0x0e: p = "IF FM Radio"; break;
1036         case 0x0f: p = "BTSC"; break;
1037         case 0x10: p = "high-deviation FM"; break;
1038         case 0x11: p = "very high-deviation FM"; break;
1039         case 0xfd: p = "unknown audio standard"; break;
1040         case 0xfe: p = "forced audio standard"; break;
1041         case 0xff: p = "no detected audio standard"; break;
1042         default: p = "not defined";
1043         }
1044         v4l_info(client, "Detected audio standard:   %s\n", p);
1045         v4l_info(client, "Audio muted:               %s\n",
1046                     (mute_ctl & 0x2) ? "yes" : "no");
1047         v4l_info(client, "Audio microcontroller:     %s\n",
1048                     (download_ctl & 0x10) ? "running" : "stopped");
1049
1050         switch (audio_config >> 4) {
1051         case 0x00: p = "undefined"; break;
1052         case 0x01: p = "BTSC"; break;
1053         case 0x02: p = "EIAJ"; break;
1054         case 0x03: p = "A2-M"; break;
1055         case 0x04: p = "A2-BG"; break;
1056         case 0x05: p = "A2-DK1"; break;
1057         case 0x06: p = "A2-DK2"; break;
1058         case 0x07: p = "A2-DK3"; break;
1059         case 0x08: p = "A1 (6.0 MHz FM Mono)"; break;
1060         case 0x09: p = "AM-L"; break;
1061         case 0x0a: p = "NICAM-BG"; break;
1062         case 0x0b: p = "NICAM-DK"; break;
1063         case 0x0c: p = "NICAM-I"; break;
1064         case 0x0d: p = "NICAM-L"; break;
1065         case 0x0e: p = "FM radio"; break;
1066         case 0x0f: p = "automatic detection"; break;
1067         default: p = "undefined";
1068         }
1069         v4l_info(client, "Configured audio standard: %s\n", p);
1070
1071         if ((audio_config >> 4) < 0xF) {
1072                 switch (audio_config & 0xF) {
1073                 case 0x00: p = "MONO1 (LANGUAGE A/Mono L+R channel for BTSC, EIAJ, A2)"; break;
1074                 case 0x01: p = "MONO2 (LANGUAGE B)"; break;
1075                 case 0x02: p = "MONO3 (STEREO forced MONO)"; break;
1076                 case 0x03: p = "MONO4 (NICAM ANALOG-Language C/Analog Fallback)"; break;
1077                 case 0x04: p = "STEREO"; break;
1078                 case 0x05: p = "DUAL1 (AB)"; break;
1079                 case 0x06: p = "DUAL2 (AC) (FM)"; break;
1080                 case 0x07: p = "DUAL3 (BC) (FM)"; break;
1081                 case 0x08: p = "DUAL4 (AC) (AM)"; break;
1082                 case 0x09: p = "DUAL5 (BC) (AM)"; break;
1083                 case 0x0a: p = "SAP"; break;
1084                 default: p = "undefined";
1085                 }
1086                 v4l_info(client, "Configured audio mode:     %s\n", p);
1087         } else {
1088                 switch (audio_config & 0xF) {
1089                 case 0x00: p = "BG"; break;
1090                 case 0x01: p = "DK1"; break;
1091                 case 0x02: p = "DK2"; break;
1092                 case 0x03: p = "DK3"; break;
1093                 case 0x04: p = "I"; break;
1094                 case 0x05: p = "L"; break;
1095                 case 0x06: p = "BTSC"; break;
1096                 case 0x07: p = "EIAJ"; break;
1097                 case 0x08: p = "A2-M"; break;
1098                 case 0x09: p = "FM Radio"; break;
1099                 case 0x0f: p = "automatic standard and mode detection"; break;
1100                 default: p = "undefined";
1101                 }
1102                 v4l_info(client, "Configured audio system:   %s\n", p);
1103         }
1104
1105         v4l_info(client, "Specified standard:        %s\n",
1106                     vidfmt_sel ? fmt_strs[vidfmt_sel] : "automatic detection");
1107
1108         if (vid_input >= CX25840_COMPOSITE1 &&
1109             vid_input <= CX25840_COMPOSITE8) {
1110                 v4l_info(client, "Specified video input:     Composite %d\n",
1111                         vid_input - CX25840_COMPOSITE1 + 1);
1112         } else {
1113                 v4l_info(client, "Specified video input:     S-Video (Luma In%d, Chroma In%d)\n",
1114                         (vid_input & 0xf0) >> 4, (vid_input & 0xf00) >> 8);
1115         }
1116         if (aud_input) {
1117                 v4l_info(client, "Specified audio input:     Tuner (In%d)\n", aud_input);
1118         } else {
1119                 v4l_info(client, "Specified audio input:     External\n");
1120         }
1121
1122         v4l_info(client, "Specified audioclock freq: %d Hz\n", state->audclk_freq);
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 }