git.oblomov.eu Git - linux-2.6/blob - drivers/media/video/cx18/cx18-av-core.c

   1 /*
   2  *  cx18 ADEC audio functions
   3  *
   4  *  Derived from cx25840-core.c
   5  *
   6  *  Copyright (C) 2007  Hans Verkuil <hverkuil@xs4all.nl>
   7  *
   8  *  This program is free software; you can redistribute it and/or
   9  *  modify it under the terms of the GNU General Public License
  10  *  as published by the Free Software Foundation; either version 2
  11  *  of the License, or (at your option) any later version.
  12  *
  13  *  This program is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *  GNU General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU General Public License
  19  *  along with this program; if not, write to the Free Software
  20  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  21  *  02110-1301, USA.
  22  */
  23
  24 #include "cx18-driver.h"
  25 #include "cx18-io.h"
  26
  27 int cx18_av_write(struct cx18 *cx, u16 addr, u8 value)
  28 {
  29         u32 reg = 0xc40000 + (addr & ~3);
  30         u32 mask = 0xff;
  31         int shift = (addr & 3) * 8;
  32         u32 x = cx18_read_reg(cx, reg);
  33
  34         x = (x & ~(mask << shift)) | ((u32)value << shift);
  35         cx18_write_reg(cx, x, reg);
  36         return 0;
  37 }
  38
  39 int cx18_av_write_expect(struct cx18 *cx, u16 addr, u8 value, u8 eval, u8 mask)
  40 {
  41         u32 reg = 0xc40000 + (addr & ~3);
  42         int shift = (addr & 3) * 8;
  43         u32 x = cx18_read_reg(cx, reg);
  44
  45         x = (x & ~((u32)0xff << shift)) | ((u32)value << shift);
  46         cx18_write_reg_expect(cx, x, reg,
  47                                 ((u32)eval << shift), ((u32)mask << shift));
  48         return 0;
  49 }
  50
  51 int cx18_av_write4(struct cx18 *cx, u16 addr, u32 value)
  52 {
  53         cx18_write_reg(cx, value, 0xc40000 + addr);
  54         return 0;
  55 }
  56
  57 int
  58 cx18_av_write4_expect(struct cx18 *cx, u16 addr, u32 value, u32 eval, u32 mask)
  59 {
  60         cx18_write_reg_expect(cx, value, 0xc40000 + addr, eval, mask);
  61         return 0;
  62 }
  63
  64 int cx18_av_write4_noretry(struct cx18 *cx, u16 addr, u32 value)
  65 {
  66         cx18_write_reg_noretry(cx, value, 0xc40000 + addr);
  67         return 0;
  68 }
  69
  70 u8 cx18_av_read(struct cx18 *cx, u16 addr)
  71 {
  72         u32 x = cx18_read_reg(cx, 0xc40000 + (addr & ~3));
  73         int shift = (addr & 3) * 8;
  74
  75         return (x >> shift) & 0xff;
  76 }
  77
  78 u32 cx18_av_read4(struct cx18 *cx, u16 addr)
  79 {
  80         return cx18_read_reg(cx, 0xc40000 + addr);
  81 }
  82
  83 u32 cx18_av_read4_noretry(struct cx18 *cx, u16 addr)
  84 {
  85         return cx18_read_reg_noretry(cx, 0xc40000 + addr);
  86 }
  87
  88 int cx18_av_and_or(struct cx18 *cx, u16 addr, unsigned and_mask,
  89                    u8 or_value)
  90 {
  91         return cx18_av_write(cx, addr,
  92                              (cx18_av_read(cx, addr) & and_mask) |
  93                              or_value);
  94 }
  95
  96 int cx18_av_and_or4(struct cx18 *cx, u16 addr, u32 and_mask,
  97                    u32 or_value)
  98 {
  99         return cx18_av_write4(cx, addr,
 100                              (cx18_av_read4(cx, addr) & and_mask) |
 101                              or_value);
 102 }
 103
 104 /* ----------------------------------------------------------------------- */
 105
 106 static int set_input(struct cx18 *cx, enum cx18_av_video_input vid_input,
 107                                         enum cx18_av_audio_input aud_input);
 108 static void log_audio_status(struct cx18 *cx);
 109 static void log_video_status(struct cx18 *cx);
 110
 111 /* ----------------------------------------------------------------------- */
 112
 113 static void cx18_av_initialize(struct cx18 *cx)
 114 {
 115         struct cx18_av_state *state = &cx->av_state;
 116         u32 v;
 117
 118         cx18_av_loadfw(cx);
 119         /* Stop 8051 code execution */
 120         cx18_av_write4_expect(cx, CXADEC_DL_CTL, 0x03000000,
 121                                                  0x03000000, 0x13000000);
 122
 123         /* initallize the PLL by toggling sleep bit */
 124         v = cx18_av_read4(cx, CXADEC_HOST_REG1);
 125         /* enable sleep mode - register appears to be read only... */
 126         cx18_av_write4_expect(cx, CXADEC_HOST_REG1, v | 1, v, 0xfffe);
 127         /* disable sleep mode */
 128         cx18_av_write4_expect(cx, CXADEC_HOST_REG1, v & 0xfffe,
 129                                                     v & 0xfffe, 0xffff);
 130
 131         /* initialize DLLs */
 132         v = cx18_av_read4(cx, CXADEC_DLL1_DIAG_CTRL) & 0xE1FFFEFF;
 133         /* disable FLD */
 134         cx18_av_write4(cx, CXADEC_DLL1_DIAG_CTRL, v);
 135         /* enable FLD */
 136         cx18_av_write4(cx, CXADEC_DLL1_DIAG_CTRL, v | 0x10000100);
 137
 138         v = cx18_av_read4(cx, CXADEC_DLL2_DIAG_CTRL) & 0xE1FFFEFF;
 139         /* disable FLD */
 140         cx18_av_write4(cx, CXADEC_DLL2_DIAG_CTRL, v);
 141         /* enable FLD */
 142         cx18_av_write4(cx, CXADEC_DLL2_DIAG_CTRL, v | 0x06000100);
 143
 144         /* set analog bias currents. Set Vreg to 1.20V. */
 145         cx18_av_write4(cx, CXADEC_AFE_DIAG_CTRL1, 0x000A1802);
 146
 147         v = cx18_av_read4(cx, CXADEC_AFE_DIAG_CTRL3) | 1;
 148         /* enable TUNE_FIL_RST */
 149         cx18_av_write4_expect(cx, CXADEC_AFE_DIAG_CTRL3, v, v, 0x03009F0F);
 150         /* disable TUNE_FIL_RST */
 151         cx18_av_write4_expect(cx, CXADEC_AFE_DIAG_CTRL3,
 152                               v & 0xFFFFFFFE, v & 0xFFFFFFFE, 0x03009F0F);
 153
 154         /* enable 656 output */
 155         cx18_av_and_or4(cx, CXADEC_PIN_CTRL1, ~0, 0x040C00);
 156
 157         /* video output drive strength */
 158         cx18_av_and_or4(cx, CXADEC_PIN_CTRL2, ~0, 0x2);
 159
 160         /* reset video */
 161         cx18_av_write4(cx, CXADEC_SOFT_RST_CTRL, 0x8000);
 162         cx18_av_write4(cx, CXADEC_SOFT_RST_CTRL, 0);
 163
 164         /* set video to auto-detect */
 165         /* Clear bits 11-12 to enable slow locking mode.  Set autodetect mode */
 166         /* set the comb notch = 1 */
 167         cx18_av_and_or4(cx, CXADEC_MODE_CTRL, 0xFFF7E7F0, 0x02040800);
 168
 169         /* Enable wtw_en in CRUSH_CTRL (Set bit 22) */
 170         /* Enable maj_sel in CRUSH_CTRL (Set bit 20) */
 171         cx18_av_and_or4(cx, CXADEC_CRUSH_CTRL, ~0, 0x00500000);
 172
 173         /* Set VGA_TRACK_RANGE to 0x20 */
 174         cx18_av_and_or4(cx, CXADEC_DFE_CTRL2, 0xFFFF00FF, 0x00002000);
 175
 176         /* Enable VBI capture */
 177         cx18_av_write4(cx, CXADEC_OUT_CTRL1, 0x4010253F);
 178         /* cx18_av_write4(cx, CXADEC_OUT_CTRL1, 0x4010253E); */
 179
 180         /* Set the video input.
 181            The setting in MODE_CTRL gets lost when we do the above setup */
 182         /* EncSetSignalStd(dwDevNum, pEnc->dwSigStd); */
 183         /* EncSetVideoInput(dwDevNum, pEnc->VidIndSelection); */
 184
 185         v = cx18_av_read4(cx, CXADEC_AFE_CTRL);
 186         v &= 0xFFFBFFFF;            /* turn OFF bit 18 for droop_comp_ch1 */
 187         v &= 0xFFFF7FFF;            /* turn OFF bit 9 for clamp_sel_ch1 */
 188         v &= 0xFFFFFFFE;            /* turn OFF bit 0 for 12db_ch1 */
 189         /* v |= 0x00000001;*/            /* turn ON bit 0 for 12db_ch1 */
 190         cx18_av_write4(cx, CXADEC_AFE_CTRL, v);
 191
 192 /*      if(dwEnable && dw3DCombAvailable) { */
 193 /*              CxDevWrReg(CXADEC_SRC_COMB_CFG, 0x7728021F); */
 194 /*    } else { */
 195 /*              CxDevWrReg(CXADEC_SRC_COMB_CFG, 0x6628021F); */
 196 /*    } */
 197         cx18_av_write4(cx, CXADEC_SRC_COMB_CFG, 0x6628021F);
 198         state->default_volume = 228 - cx18_av_read(cx, 0x8d4);
 199         state->default_volume = ((state->default_volume / 2) + 23) << 9;
 200 }
 201
 202 /* ----------------------------------------------------------------------- */
 203
 204 void cx18_av_std_setup(struct cx18 *cx)
 205 {
 206         struct cx18_av_state *state = &cx->av_state;
 207         v4l2_std_id std = state->std;
 208         int hblank, hactive, burst, vblank, vactive, sc;
 209         int vblank656, src_decimation;
 210         int luma_lpf, uv_lpf, comb;
 211         u32 pll_int, pll_frac, pll_post;
 212
 213         /* datasheet startup, step 8d */
 214         if (std & ~V4L2_STD_NTSC)
 215                 cx18_av_write(cx, 0x49f, 0x11);
 216         else
 217                 cx18_av_write(cx, 0x49f, 0x14);
 218
 219         if (std & V4L2_STD_625_50) {
 220                 hblank = 132;
 221                 hactive = 720;
 222                 burst = 93;
 223                 vblank = 36;
 224                 vactive = 580;
 225                 vblank656 = 40;
 226                 src_decimation = 0x21f;
 227
 228                 luma_lpf = 2;
 229                 if (std & V4L2_STD_PAL) {
 230                         uv_lpf = 1;
 231                         comb = 0x20;
 232                         sc = 688739;
 233                 } else if (std == V4L2_STD_PAL_Nc) {
 234                         uv_lpf = 1;
 235                         comb = 0x20;
 236                         sc = 556453;
 237                 } else { /* SECAM */
 238                         uv_lpf = 0;
 239                         comb = 0;
 240                         sc = 672351;
 241                 }
 242         } else {
 243                 hactive = 720;
 244                 hblank = 122;
 245                 vactive = 487;
 246                 luma_lpf = 1;
 247                 uv_lpf = 1;
 248                 vblank = 26;
 249                 vblank656 = 26;
 250
 251                 src_decimation = 0x21f;
 252                 if (std == V4L2_STD_PAL_60) {
 253                         burst = 0x5b;
 254                         luma_lpf = 2;
 255                         comb = 0x20;
 256                         sc = 688739;
 257                 } else if (std == V4L2_STD_PAL_M) {
 258                         burst = 0x61;
 259                         comb = 0x20;
 260                         sc = 555452;
 261                 } else {
 262                         burst = 0x5b;
 263                         comb = 0x66;
 264                         sc = 556063;
 265                 }
 266         }
 267
 268         /* DEBUG: Displays configured PLL frequency */
 269         pll_int = cx18_av_read(cx, 0x108);
 270         pll_frac = cx18_av_read4(cx, 0x10c) & 0x1ffffff;
 271         pll_post = cx18_av_read(cx, 0x109);
 272         CX18_DEBUG_INFO("PLL regs = int: %u, frac: %u, post: %u\n",
 273                         pll_int, pll_frac, pll_post);
 274
 275         if (pll_post) {
 276                 int fin, fsc, pll;
 277
 278                 pll = (28636364L * ((((u64)pll_int) << 25) + pll_frac)) >> 25;
 279                 pll /= pll_post;
 280                 CX18_DEBUG_INFO("PLL = %d.%06d MHz\n",
 281                                         pll / 1000000, pll % 1000000);
 282                 CX18_DEBUG_INFO("PLL/8 = %d.%06d MHz\n",
 283                                         pll / 8000000, (pll / 8) % 1000000);
 284
 285                 fin = ((u64)src_decimation * pll) >> 12;
 286                 CX18_DEBUG_INFO("ADC Sampling freq = %d.%06d MHz\n",
 287                                         fin / 1000000, fin % 1000000);
 288
 289                 fsc = (((u64)sc) * pll) >> 24L;
 290                 CX18_DEBUG_INFO("Chroma sub-carrier freq = %d.%06d MHz\n",
 291                                         fsc / 1000000, fsc % 1000000);
 292
 293                 CX18_DEBUG_INFO("hblank %i, hactive %i, "
 294                         "vblank %i , vactive %i, vblank656 %i, src_dec %i,"
 295                         "burst 0x%02x, luma_lpf %i, uv_lpf %i, comb 0x%02x,"
 296                         " sc 0x%06x\n",
 297                         hblank, hactive, vblank, vactive, vblank656,
 298                         src_decimation, burst, luma_lpf, uv_lpf, comb, sc);
 299         }
 300
 301         /* Sets horizontal blanking delay and active lines */
 302         cx18_av_write(cx, 0x470, hblank);
 303         cx18_av_write(cx, 0x471, 0xff & (((hblank >> 8) & 0x3) |
 304                                                 (hactive << 4)));
 305         cx18_av_write(cx, 0x472, hactive >> 4);
 306
 307         /* Sets burst gate delay */
 308         cx18_av_write(cx, 0x473, burst);
 309
 310         /* Sets vertical blanking delay and active duration */
 311         cx18_av_write(cx, 0x474, vblank);
 312         cx18_av_write(cx, 0x475, 0xff & (((vblank >> 8) & 0x3) |
 313                                                 (vactive << 4)));
 314         cx18_av_write(cx, 0x476, vactive >> 4);
 315         cx18_av_write(cx, 0x477, vblank656);
 316
 317         /* Sets src decimation rate */
 318         cx18_av_write(cx, 0x478, 0xff & src_decimation);
 319         cx18_av_write(cx, 0x479, 0xff & (src_decimation >> 8));
 320
 321         /* Sets Luma and UV Low pass filters */
 322         cx18_av_write(cx, 0x47a, luma_lpf << 6 | ((uv_lpf << 4) & 0x30));
 323
 324         /* Enables comb filters */
 325         cx18_av_write(cx, 0x47b, comb);
 326
 327         /* Sets SC Step*/
 328         cx18_av_write(cx, 0x47c, sc);
 329         cx18_av_write(cx, 0x47d, 0xff & sc >> 8);
 330         cx18_av_write(cx, 0x47e, 0xff & sc >> 16);
 331
 332         /* Sets VBI parameters */
 333         if (std & V4L2_STD_625_50) {
 334                 cx18_av_write(cx, 0x47f, 0x01);
 335                 state->vbi_line_offset = 5;
 336         } else {
 337                 cx18_av_write(cx, 0x47f, 0x00);
 338                 state->vbi_line_offset = 8;
 339         }
 340 }
 341
 342 /* ----------------------------------------------------------------------- */
 343
 344 static void input_change(struct cx18 *cx)
 345 {
 346         struct cx18_av_state *state = &cx->av_state;
 347         v4l2_std_id std = state->std;
 348         u8 v;
 349
 350         /* Follow step 8c and 8d of section 3.16 in the cx18_av datasheet */
 351         cx18_av_write(cx, 0x49f, (std & V4L2_STD_NTSC) ? 0x14 : 0x11);
 352         cx18_av_and_or(cx, 0x401, ~0x60, 0);
 353         cx18_av_and_or(cx, 0x401, ~0x60, 0x60);
 354
 355         if (std & V4L2_STD_525_60) {
 356                 if (std == V4L2_STD_NTSC_M_JP) {
 357                         /* Japan uses EIAJ audio standard */
 358                         cx18_av_write_expect(cx, 0x808, 0xf7, 0xf7, 0xff);
 359                         cx18_av_write_expect(cx, 0x80b, 0x02, 0x02, 0x3f);
 360                 } else if (std == V4L2_STD_NTSC_M_KR) {
 361                         /* South Korea uses A2 audio standard */
 362                         cx18_av_write_expect(cx, 0x808, 0xf8, 0xf8, 0xff);
 363                         cx18_av_write_expect(cx, 0x80b, 0x03, 0x03, 0x3f);
 364                 } else {
 365                         /* Others use the BTSC audio standard */
 366                         cx18_av_write_expect(cx, 0x808, 0xf6, 0xf6, 0xff);
 367                         cx18_av_write_expect(cx, 0x80b, 0x01, 0x01, 0x3f);
 368                 }
 369         } else if (std & V4L2_STD_PAL) {
 370                 /* Follow tuner change procedure for PAL */
 371                 cx18_av_write_expect(cx, 0x808, 0xff, 0xff, 0xff);
 372                 cx18_av_write_expect(cx, 0x80b, 0x03, 0x03, 0x3f);
 373         } else if (std & V4L2_STD_SECAM) {
 374                 /* Select autodetect for SECAM */
 375                 cx18_av_write_expect(cx, 0x808, 0xff, 0xff, 0xff);
 376                 cx18_av_write_expect(cx, 0x80b, 0x03, 0x03, 0x3f);
 377         }
 378
 379         v = cx18_av_read(cx, 0x803);
 380         if (v & 0x10) {
 381                 /* restart audio decoder microcontroller */
 382                 v &= ~0x10;
 383                 cx18_av_write_expect(cx, 0x803, v, v, 0x1f);
 384                 v |= 0x10;
 385                 cx18_av_write_expect(cx, 0x803, v, v, 0x1f);
 386         }
 387 }
 388
 389 static int set_input(struct cx18 *cx, enum cx18_av_video_input vid_input,
 390                                         enum cx18_av_audio_input aud_input)
 391 {
 392         struct cx18_av_state *state = &cx->av_state;
 393         u8 is_composite = (vid_input >= CX18_AV_COMPOSITE1 &&
 394                            vid_input <= CX18_AV_COMPOSITE8);
 395         u8 reg;
 396         u8 v;
 397
 398         CX18_DEBUG_INFO("decoder set video input %d, audio input %d\n",
 399                         vid_input, aud_input);
 400
 401         if (is_composite) {
 402                 reg = 0xf0 + (vid_input - CX18_AV_COMPOSITE1);
 403         } else {
 404                 int luma = vid_input & 0xf0;
 405                 int chroma = vid_input & 0xf00;
 406
 407                 if ((vid_input & ~0xff0) ||
 408                     luma < CX18_AV_SVIDEO_LUMA1 ||
 409                     luma > CX18_AV_SVIDEO_LUMA8 ||
 410                     chroma < CX18_AV_SVIDEO_CHROMA4 ||
 411                     chroma > CX18_AV_SVIDEO_CHROMA8) {
 412                         CX18_ERR("0x%04x is not a valid video input!\n",
 413                                         vid_input);
 414                         return -EINVAL;
 415                 }
 416                 reg = 0xf0 + ((luma - CX18_AV_SVIDEO_LUMA1) >> 4);
 417                 if (chroma >= CX18_AV_SVIDEO_CHROMA7) {
 418                         reg &= 0x3f;
 419                         reg |= (chroma - CX18_AV_SVIDEO_CHROMA7) >> 2;
 420                 } else {
 421                         reg &= 0xcf;
 422                         reg |= (chroma - CX18_AV_SVIDEO_CHROMA4) >> 4;
 423                 }
 424         }
 425
 426         switch (aud_input) {
 427         case CX18_AV_AUDIO_SERIAL1:
 428         case CX18_AV_AUDIO_SERIAL2:
 429                 /* do nothing, use serial audio input */
 430                 break;
 431         case CX18_AV_AUDIO4: reg &= ~0x30; break;
 432         case CX18_AV_AUDIO5: reg &= ~0x30; reg |= 0x10; break;
 433         case CX18_AV_AUDIO6: reg &= ~0x30; reg |= 0x20; break;
 434         case CX18_AV_AUDIO7: reg &= ~0xc0; break;
 435         case CX18_AV_AUDIO8: reg &= ~0xc0; reg |= 0x40; break;
 436
 437         default:
 438                 CX18_ERR("0x%04x is not a valid audio input!\n", aud_input);
 439                 return -EINVAL;
 440         }
 441
 442         cx18_av_write_expect(cx, 0x103, reg, reg, 0xf7);
 443         /* Set INPUT_MODE to Composite (0) or S-Video (1) */
 444         cx18_av_and_or(cx, 0x401, ~0x6, is_composite ? 0 : 0x02);
 445
 446         /* Set CH_SEL_ADC2 to 1 if input comes from CH3 */
 447         v = cx18_av_read(cx, 0x102);
 448         if (reg & 0x80)
 449                 v &= ~0x2;
 450         else
 451                 v |= 0x2;
 452         /* Set DUAL_MODE_ADC2 to 1 if input comes from both CH2 and CH3 */
 453         if ((reg & 0xc0) != 0xc0 && (reg & 0x30) != 0x30)
 454                 v |= 0x4;
 455         else
 456                 v &= ~0x4;
 457         cx18_av_write_expect(cx, 0x102, v, v, 0x17);
 458
 459         /*cx18_av_and_or4(cx, 0x104, ~0x001b4180, 0x00004180);*/
 460
 461         state->vid_input = vid_input;
 462         state->aud_input = aud_input;
 463         cx18_av_audio_set_path(cx);
 464         input_change(cx);
 465         return 0;
 466 }
 467
 468 /* ----------------------------------------------------------------------- */
 469
 470 static int set_v4lstd(struct cx18 *cx)
 471 {
 472         struct cx18_av_state *state = &cx->av_state;
 473         u8 fmt = 0;     /* zero is autodetect */
 474         u8 pal_m = 0;
 475
 476         /* First tests should be against specific std */
 477         if (state->std == V4L2_STD_NTSC_M_JP) {
 478                 fmt = 0x2;
 479         } else if (state->std == V4L2_STD_NTSC_443) {
 480                 fmt = 0x3;
 481         } else if (state->std == V4L2_STD_PAL_M) {
 482                 pal_m = 1;
 483                 fmt = 0x5;
 484         } else if (state->std == V4L2_STD_PAL_N) {
 485                 fmt = 0x6;
 486         } else if (state->std == V4L2_STD_PAL_Nc) {
 487                 fmt = 0x7;
 488         } else if (state->std == V4L2_STD_PAL_60) {
 489                 fmt = 0x8;
 490         } else {
 491                 /* Then, test against generic ones */
 492                 if (state->std & V4L2_STD_NTSC)
 493                         fmt = 0x1;
 494                 else if (state->std & V4L2_STD_PAL)
 495                         fmt = 0x4;
 496                 else if (state->std & V4L2_STD_SECAM)
 497                         fmt = 0xc;
 498         }
 499
 500         CX18_DEBUG_INFO("changing video std to fmt %i\n", fmt);
 501
 502         /* Follow step 9 of section 3.16 in the cx18_av datasheet.
 503            Without this PAL may display a vertical ghosting effect.
 504            This happens for example with the Yuan MPC622. */
 505         if (fmt >= 4 && fmt < 8) {
 506                 /* Set format to NTSC-M */
 507                 cx18_av_and_or(cx, 0x400, ~0xf, 1);
 508                 /* Turn off LCOMB */
 509                 cx18_av_and_or(cx, 0x47b, ~6, 0);
 510         }
 511         cx18_av_and_or(cx, 0x400, ~0x2f, fmt | 0x20);
 512         cx18_av_and_or(cx, 0x403, ~0x3, pal_m);
 513         cx18_av_std_setup(cx);
 514         input_change(cx);
 515         return 0;
 516 }
 517
 518 /* ----------------------------------------------------------------------- */
 519
 520 static int set_v4lctrl(struct cx18 *cx, struct v4l2_control *ctrl)
 521 {
 522         switch (ctrl->id) {
 523         case V4L2_CID_BRIGHTNESS:
 524                 if (ctrl->value < 0 || ctrl->value > 255) {
 525                         CX18_ERR("invalid brightness setting %d\n",
 526                                     ctrl->value);
 527                         return -ERANGE;
 528                 }
 529
 530                 cx18_av_write(cx, 0x414, ctrl->value - 128);
 531                 break;
 532
 533         case V4L2_CID_CONTRAST:
 534                 if (ctrl->value < 0 || ctrl->value > 127) {
 535                         CX18_ERR("invalid contrast setting %d\n",
 536                                     ctrl->value);
 537                         return -ERANGE;
 538                 }
 539
 540                 cx18_av_write(cx, 0x415, ctrl->value << 1);
 541                 break;
 542
 543         case V4L2_CID_SATURATION:
 544                 if (ctrl->value < 0 || ctrl->value > 127) {
 545                         CX18_ERR("invalid saturation setting %d\n",
 546                                     ctrl->value);
 547                         return -ERANGE;
 548                 }
 549
 550                 cx18_av_write(cx, 0x420, ctrl->value << 1);
 551                 cx18_av_write(cx, 0x421, ctrl->value << 1);
 552                 break;
 553
 554         case V4L2_CID_HUE:
 555                 if (ctrl->value < -127 || ctrl->value > 127) {
 556                         CX18_ERR("invalid hue setting %d\n", ctrl->value);
 557                         return -ERANGE;
 558                 }
 559
 560                 cx18_av_write(cx, 0x422, ctrl->value);
 561                 break;
 562
 563         case V4L2_CID_AUDIO_VOLUME:
 564         case V4L2_CID_AUDIO_BASS:
 565         case V4L2_CID_AUDIO_TREBLE:
 566         case V4L2_CID_AUDIO_BALANCE:
 567         case V4L2_CID_AUDIO_MUTE:
 568                 return cx18_av_audio(cx, VIDIOC_S_CTRL, ctrl);
 569
 570         default:
 571                 return -EINVAL;
 572         }
 573
 574         return 0;
 575 }
 576
 577 static int get_v4lctrl(struct cx18 *cx, struct v4l2_control *ctrl)
 578 {
 579         switch (ctrl->id) {
 580         case V4L2_CID_BRIGHTNESS:
 581                 ctrl->value = (s8)cx18_av_read(cx, 0x414) + 128;
 582                 break;
 583         case V4L2_CID_CONTRAST:
 584                 ctrl->value = cx18_av_read(cx, 0x415) >> 1;
 585                 break;
 586         case V4L2_CID_SATURATION:
 587                 ctrl->value = cx18_av_read(cx, 0x420) >> 1;
 588                 break;
 589         case V4L2_CID_HUE:
 590                 ctrl->value = (s8)cx18_av_read(cx, 0x422);
 591                 break;
 592         case V4L2_CID_AUDIO_VOLUME:
 593         case V4L2_CID_AUDIO_BASS:
 594         case V4L2_CID_AUDIO_TREBLE:
 595         case V4L2_CID_AUDIO_BALANCE:
 596         case V4L2_CID_AUDIO_MUTE:
 597                 return cx18_av_audio(cx, VIDIOC_G_CTRL, ctrl);
 598         default:
 599                 return -EINVAL;
 600         }
 601
 602         return 0;
 603 }
 604
 605 /* ----------------------------------------------------------------------- */
 606
 607 static int get_v4lfmt(struct cx18 *cx, struct v4l2_format *fmt)
 608 {
 609         switch (fmt->type) {
 610         case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
 611                 return cx18_av_vbi(cx, VIDIOC_G_FMT, fmt);
 612         default:
 613                 return -EINVAL;
 614         }
 615
 616         return 0;
 617 }
 618
 619 static int set_v4lfmt(struct cx18 *cx, struct v4l2_format *fmt)
 620 {
 621         struct cx18_av_state *state = &cx->av_state;
 622         struct v4l2_pix_format *pix;
 623         int HSC, VSC, Vsrc, Hsrc, filter, Vlines;
 624         int is_50Hz = !(state->std & V4L2_STD_525_60);
 625
 626         switch (fmt->type) {
 627         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 628                 pix = &(fmt->fmt.pix);
 629
 630                 Vsrc = (cx18_av_read(cx, 0x476) & 0x3f) << 4;
 631                 Vsrc |= (cx18_av_read(cx, 0x475) & 0xf0) >> 4;
 632
 633                 Hsrc = (cx18_av_read(cx, 0x472) & 0x3f) << 4;
 634                 Hsrc |= (cx18_av_read(cx, 0x471) & 0xf0) >> 4;
 635
 636                 Vlines = pix->height + (is_50Hz ? 4 : 7);
 637
 638                 if ((pix->width * 16 < Hsrc) || (Hsrc < pix->width) ||
 639                     (Vlines * 8 < Vsrc) || (Vsrc < Vlines)) {
 640                         CX18_ERR("%dx%d is not a valid size!\n",
 641                                     pix->width, pix->height);
 642                         return -ERANGE;
 643                 }
 644
 645                 HSC = (Hsrc * (1 << 20)) / pix->width - (1 << 20);
 646                 VSC = (1 << 16) - (Vsrc * (1 << 9) / Vlines - (1 << 9));
 647                 VSC &= 0x1fff;
 648
 649                 if (pix->width >= 385)
 650                         filter = 0;
 651                 else if (pix->width > 192)
 652                         filter = 1;
 653                 else if (pix->width > 96)
 654                         filter = 2;
 655                 else
 656                         filter = 3;
 657
 658                 CX18_DEBUG_INFO("decoder set size %dx%d -> scale  %ux%u\n",
 659                             pix->width, pix->height, HSC, VSC);
 660
 661                 /* HSCALE=HSC */
 662                 cx18_av_write(cx, 0x418, HSC & 0xff);
 663                 cx18_av_write(cx, 0x419, (HSC >> 8) & 0xff);
 664                 cx18_av_write(cx, 0x41a, HSC >> 16);
 665                 /* VSCALE=VSC */
 666                 cx18_av_write(cx, 0x41c, VSC & 0xff);
 667                 cx18_av_write(cx, 0x41d, VSC >> 8);
 668                 /* VS_INTRLACE=1 VFILT=filter */
 669                 cx18_av_write(cx, 0x41e, 0x8 | filter);
 670                 break;
 671
 672         case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
 673                 return cx18_av_vbi(cx, VIDIOC_S_FMT, fmt);
 674
 675         case V4L2_BUF_TYPE_VBI_CAPTURE:
 676                 return cx18_av_vbi(cx, VIDIOC_S_FMT, fmt);
 677
 678         default:
 679                 return -EINVAL;
 680         }
 681
 682         return 0;
 683 }
 684
 685 /* ----------------------------------------------------------------------- */
 686
 687 int cx18_av_cmd(struct cx18 *cx, unsigned int cmd, void *arg)
 688 {
 689         struct cx18_av_state *state = &cx->av_state;
 690         struct v4l2_tuner *vt = arg;
 691         struct v4l2_routing *route = arg;
 692
 693         /* ignore these commands */
 694         switch (cmd) {
 695         case TUNER_SET_TYPE_ADDR:
 696                 return 0;
 697         }
 698
 699         if (!state->is_initialized) {
 700                 CX18_DEBUG_INFO("cmd %08x triggered fw load\n", cmd);
 701                 /* initialize on first use */
 702                 state->is_initialized = 1;
 703                 cx18_av_initialize(cx);
 704         }
 705
 706         switch (cmd) {
 707         case VIDIOC_INT_DECODE_VBI_LINE:
 708                 return cx18_av_vbi(cx, cmd, arg);
 709
 710         case VIDIOC_INT_AUDIO_CLOCK_FREQ:
 711                 return cx18_av_audio(cx, cmd, arg);
 712
 713         case VIDIOC_STREAMON:
 714                 CX18_DEBUG_INFO("enable output\n");
 715                 cx18_av_write(cx, 0x115, 0x8c);
 716                 cx18_av_write(cx, 0x116, 0x07);
 717                 break;
 718
 719         case VIDIOC_STREAMOFF:
 720                 CX18_DEBUG_INFO("disable output\n");
 721                 cx18_av_write(cx, 0x115, 0x00);
 722                 cx18_av_write(cx, 0x116, 0x00);
 723                 break;
 724
 725         case VIDIOC_LOG_STATUS:
 726                 log_video_status(cx);
 727                 log_audio_status(cx);
 728                 break;
 729
 730         case VIDIOC_G_CTRL:
 731                 return get_v4lctrl(cx, (struct v4l2_control *)arg);
 732
 733         case VIDIOC_S_CTRL:
 734                 return set_v4lctrl(cx, (struct v4l2_control *)arg);
 735
 736         case VIDIOC_QUERYCTRL:
 737         {
 738                 struct v4l2_queryctrl *qc = arg;
 739
 740                 switch (qc->id) {
 741                 case V4L2_CID_BRIGHTNESS:
 742                 case V4L2_CID_CONTRAST:
 743                 case V4L2_CID_SATURATION:
 744                 case V4L2_CID_HUE:
 745                         return v4l2_ctrl_query_fill_std(qc);
 746                 default:
 747                         break;
 748                 }
 749
 750                 switch (qc->id) {
 751                 case V4L2_CID_AUDIO_VOLUME:
 752                         return v4l2_ctrl_query_fill(qc, 0, 65535,
 753                                 65535 / 100, state->default_volume);
 754                 case V4L2_CID_AUDIO_MUTE:
 755                 case V4L2_CID_AUDIO_BALANCE:
 756                 case V4L2_CID_AUDIO_BASS:
 757                 case V4L2_CID_AUDIO_TREBLE:
 758                         return v4l2_ctrl_query_fill_std(qc);
 759                 default:
 760                         return -EINVAL;
 761                 }
 762                 return -EINVAL;
 763         }
 764
 765         case VIDIOC_G_STD:
 766                 *(v4l2_std_id *)arg = state->std;
 767                 break;
 768
 769         case VIDIOC_S_STD:
 770                 if (state->radio == 0 && state->std == *(v4l2_std_id *)arg)
 771                         return 0;
 772                 state->radio = 0;
 773                 state->std = *(v4l2_std_id *)arg;
 774                 return set_v4lstd(cx);
 775
 776         case AUDC_SET_RADIO:
 777                 state->radio = 1;
 778                 break;
 779
 780         case VIDIOC_INT_G_VIDEO_ROUTING:
 781                 route->input = state->vid_input;
 782                 route->output = 0;
 783                 break;
 784
 785         case VIDIOC_INT_S_VIDEO_ROUTING:
 786                 return set_input(cx, route->input, state->aud_input);
 787
 788         case VIDIOC_INT_G_AUDIO_ROUTING:
 789                 route->input = state->aud_input;
 790                 route->output = 0;
 791                 break;
 792
 793         case VIDIOC_INT_S_AUDIO_ROUTING:
 794                 return set_input(cx, state->vid_input, route->input);
 795
 796         case VIDIOC_S_FREQUENCY:
 797                 input_change(cx);
 798                 break;
 799
 800         case VIDIOC_G_TUNER:
 801         {
 802                 u8 vpres = cx18_av_read(cx, 0x40e) & 0x20;
 803                 u8 mode;
 804                 int val = 0;
 805
 806                 if (state->radio)
 807                         break;
 808
 809                 vt->signal = vpres ? 0xffff : 0x0;
 810
 811                 vt->capability |=
 812                     V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LANG1 |
 813                     V4L2_TUNER_CAP_LANG2 | V4L2_TUNER_CAP_SAP;
 814
 815                 mode = cx18_av_read(cx, 0x804);
 816
 817                 /* get rxsubchans and audmode */
 818                 if ((mode & 0xf) == 1)
 819                         val |= V4L2_TUNER_SUB_STEREO;
 820                 else
 821                         val |= V4L2_TUNER_SUB_MONO;
 822
 823                 if (mode == 2 || mode == 4)
 824                         val = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
 825
 826                 if (mode & 0x10)
 827                         val |= V4L2_TUNER_SUB_SAP;
 828
 829                 vt->rxsubchans = val;
 830                 vt->audmode = state->audmode;
 831                 break;
 832         }
 833
 834         case VIDIOC_S_TUNER:
 835         {
 836                 u8 v;
 837
 838                 if (state->radio)
 839                         break;
 840
 841                 v = cx18_av_read(cx, 0x809);
 842                 v &= ~0xf;
 843
 844                 switch (vt->audmode) {
 845                 case V4L2_TUNER_MODE_MONO:
 846                         /* mono      -> mono
 847                            stereo    -> mono
 848                            bilingual -> lang1 */
 849                         break;
 850                 case V4L2_TUNER_MODE_STEREO:
 851                 case V4L2_TUNER_MODE_LANG1:
 852                         /* mono      -> mono
 853                            stereo    -> stereo
 854                            bilingual -> lang1 */
 855                         v |= 0x4;
 856                         break;
 857                 case V4L2_TUNER_MODE_LANG1_LANG2:
 858                         /* mono      -> mono
 859                            stereo    -> stereo
 860                            bilingual -> lang1/lang2 */
 861                         v |= 0x7;
 862                         break;
 863                 case V4L2_TUNER_MODE_LANG2:
 864                         /* mono      -> mono
 865                            stereo    -> stereo
 866                            bilingual -> lang2 */
 867                         v |= 0x1;
 868                         break;
 869                 default:
 870                         return -EINVAL;
 871                 }
 872                 cx18_av_write_expect(cx, 0x809, v, v, 0xff);
 873                 state->audmode = vt->audmode;
 874                 break;
 875         }
 876
 877         case VIDIOC_G_FMT:
 878                 return get_v4lfmt(cx, (struct v4l2_format *)arg);
 879
 880         case VIDIOC_S_FMT:
 881                 return set_v4lfmt(cx, (struct v4l2_format *)arg);
 882
 883         case VIDIOC_INT_RESET:
 884                 cx18_av_initialize(cx);
 885                 break;
 886
 887         default:
 888                 return -EINVAL;
 889         }
 890
 891         return 0;
 892 }
 893
 894 /* ----------------------------------------------------------------------- */
 895
 896 /* ----------------------------------------------------------------------- */
 897
 898 static void log_video_status(struct cx18 *cx)
 899 {
 900         static const char *const fmt_strs[] = {
 901                 "0x0",
 902                 "NTSC-M", "NTSC-J", "NTSC-4.43",
 903                 "PAL-BDGHI", "PAL-M", "PAL-N", "PAL-Nc", "PAL-60",
 904                 "0x9", "0xA", "0xB",
 905                 "SECAM",
 906                 "0xD", "0xE", "0xF"
 907         };
 908
 909         struct cx18_av_state *state = &cx->av_state;
 910         u8 vidfmt_sel = cx18_av_read(cx, 0x400) & 0xf;
 911         u8 gen_stat1 = cx18_av_read(cx, 0x40d);
 912         u8 gen_stat2 = cx18_av_read(cx, 0x40e);
 913         int vid_input = state->vid_input;
 914
 915         CX18_INFO("Video signal:              %spresent\n",
 916                     (gen_stat2 & 0x20) ? "" : "not ");
 917         CX18_INFO("Detected format:           %s\n",
 918                     fmt_strs[gen_stat1 & 0xf]);
 919
 920         CX18_INFO("Specified standard:        %s\n",
 921                     vidfmt_sel ? fmt_strs[vidfmt_sel] : "automatic detection");
 922
 923         if (vid_input >= CX18_AV_COMPOSITE1 &&
 924             vid_input <= CX18_AV_COMPOSITE8) {
 925                 CX18_INFO("Specified video input:     Composite %d\n",
 926                         vid_input - CX18_AV_COMPOSITE1 + 1);
 927         } else {
 928                 CX18_INFO("Specified video input:     S-Video (Luma In%d, Chroma In%d)\n",
 929                         (vid_input & 0xf0) >> 4, (vid_input & 0xf00) >> 8);
 930         }
 931
 932         CX18_INFO("Specified audioclock freq: %d Hz\n", state->audclk_freq);
 933 }
 934
 935 /* ----------------------------------------------------------------------- */
 936
 937 static void log_audio_status(struct cx18 *cx)
 938 {
 939         struct cx18_av_state *state = &cx->av_state;
 940         u8 download_ctl = cx18_av_read(cx, 0x803);
 941         u8 mod_det_stat0 = cx18_av_read(cx, 0x804);
 942         u8 mod_det_stat1 = cx18_av_read(cx, 0x805);
 943         u8 audio_config = cx18_av_read(cx, 0x808);
 944         u8 pref_mode = cx18_av_read(cx, 0x809);
 945         u8 afc0 = cx18_av_read(cx, 0x80b);
 946         u8 mute_ctl = cx18_av_read(cx, 0x8d3);
 947         int aud_input = state->aud_input;
 948         char *p;
 949
 950         switch (mod_det_stat0) {
 951         case 0x00: p = "mono"; break;
 952         case 0x01: p = "stereo"; break;
 953         case 0x02: p = "dual"; break;
 954         case 0x04: p = "tri"; break;
 955         case 0x10: p = "mono with SAP"; break;
 956         case 0x11: p = "stereo with SAP"; break;
 957         case 0x12: p = "dual with SAP"; break;
 958         case 0x14: p = "tri with SAP"; break;
 959         case 0xfe: p = "forced mode"; break;
 960         default: p = "not defined"; break;
 961         }
 962         CX18_INFO("Detected audio mode:       %s\n", p);
 963
 964         switch (mod_det_stat1) {
 965         case 0x00: p = "not defined"; break;
 966         case 0x01: p = "EIAJ"; break;
 967         case 0x02: p = "A2-M"; break;
 968         case 0x03: p = "A2-BG"; break;
 969         case 0x04: p = "A2-DK1"; break;
 970         case 0x05: p = "A2-DK2"; break;
 971         case 0x06: p = "A2-DK3"; break;
 972         case 0x07: p = "A1 (6.0 MHz FM Mono)"; break;
 973         case 0x08: p = "AM-L"; break;
 974         case 0x09: p = "NICAM-BG"; break;
 975         case 0x0a: p = "NICAM-DK"; break;
 976         case 0x0b: p = "NICAM-I"; break;
 977         case 0x0c: p = "NICAM-L"; break;
 978         case 0x0d: p = "BTSC/EIAJ/A2-M Mono (4.5 MHz FMMono)"; break;
 979         case 0x0e: p = "IF FM Radio"; break;
 980         case 0x0f: p = "BTSC"; break;
 981         case 0x10: p = "detected chrominance"; break;
 982         case 0xfd: p = "unknown audio standard"; break;
 983         case 0xfe: p = "forced audio standard"; break;
 984         case 0xff: p = "no detected audio standard"; break;
 985         default: p = "not defined"; break;
 986         }
 987         CX18_INFO("Detected audio standard:   %s\n", p);
 988         CX18_INFO("Audio muted:               %s\n",
 989                     (mute_ctl & 0x2) ? "yes" : "no");
 990         CX18_INFO("Audio microcontroller:     %s\n",
 991                     (download_ctl & 0x10) ? "running" : "stopped");
 992
 993         switch (audio_config >> 4) {
 994         case 0x00: p = "undefined"; break;
 995         case 0x01: p = "BTSC"; break;
 996         case 0x02: p = "EIAJ"; break;
 997         case 0x03: p = "A2-M"; break;
 998         case 0x04: p = "A2-BG"; break;
 999         case 0x05: p = "A2-DK1"; break;
1000         case 0x06: p = "A2-DK2"; break;
1001         case 0x07: p = "A2-DK3"; break;
1002         case 0x08: p = "A1 (6.0 MHz FM Mono)"; break;
1003         case 0x09: p = "AM-L"; break;
1004         case 0x0a: p = "NICAM-BG"; break;
1005         case 0x0b: p = "NICAM-DK"; break;
1006         case 0x0c: p = "NICAM-I"; break;
1007         case 0x0d: p = "NICAM-L"; break;
1008         case 0x0e: p = "FM radio"; break;
1009         case 0x0f: p = "automatic detection"; break;
1010         default: p = "undefined"; break;
1011         }
1012         CX18_INFO("Configured audio standard: %s\n", p);
1013
1014         if ((audio_config >> 4) < 0xF) {
1015                 switch (audio_config & 0xF) {
1016                 case 0x00: p = "MONO1 (LANGUAGE A/Mono L+R channel for BTSC, EIAJ, A2)"; break;
1017                 case 0x01: p = "MONO2 (LANGUAGE B)"; break;
1018                 case 0x02: p = "MONO3 (STEREO forced MONO)"; break;
1019                 case 0x03: p = "MONO4 (NICAM ANALOG-Language C/Analog Fallback)"; break;
1020                 case 0x04: p = "STEREO"; break;
1021                 case 0x05: p = "DUAL1 (AC)"; break;
1022                 case 0x06: p = "DUAL2 (BC)"; break;
1023                 case 0x07: p = "DUAL3 (AB)"; break;
1024                 default: p = "undefined";
1025                 }
1026                 CX18_INFO("Configured audio mode:     %s\n", p);
1027         } else {
1028                 switch (audio_config & 0xF) {
1029                 case 0x00: p = "BG"; break;
1030                 case 0x01: p = "DK1"; break;
1031                 case 0x02: p = "DK2"; break;
1032                 case 0x03: p = "DK3"; break;
1033                 case 0x04: p = "I"; break;
1034                 case 0x05: p = "L"; break;
1035                 case 0x06: p = "BTSC"; break;
1036                 case 0x07: p = "EIAJ"; break;
1037                 case 0x08: p = "A2-M"; break;
1038                 case 0x09: p = "FM Radio (4.5 MHz)"; break;
1039                 case 0x0a: p = "FM Radio (5.5 MHz)"; break;
1040                 case 0x0b: p = "S-Video"; break;
1041                 case 0x0f: p = "automatic standard and mode detection"; break;
1042                 default: p = "undefined"; break;
1043                 }
1044                 CX18_INFO("Configured audio system:   %s\n", p);
1045         }
1046
1047         if (aud_input)
1048                 CX18_INFO("Specified audio input:     Tuner (In%d)\n",
1049                                 aud_input);
1050         else
1051                 CX18_INFO("Specified audio input:     External\n");
1052
1053         switch (pref_mode & 0xf) {
1054         case 0: p = "mono/language A"; break;
1055         case 1: p = "language B"; break;
1056         case 2: p = "language C"; break;
1057         case 3: p = "analog fallback"; break;
1058         case 4: p = "stereo"; break;
1059         case 5: p = "language AC"; break;
1060         case 6: p = "language BC"; break;
1061         case 7: p = "language AB"; break;
1062         default: p = "undefined"; break;
1063         }
1064         CX18_INFO("Preferred audio mode:      %s\n", p);
1065
1066         if ((audio_config & 0xf) == 0xf) {
1067                 switch ((afc0 >> 3) & 0x1) {
1068                 case 0: p = "system DK"; break;
1069                 case 1: p = "system L"; break;
1070                 }
1071                 CX18_INFO("Selected 65 MHz format:    %s\n", p);
1072
1073                 switch (afc0 & 0x7) {
1074                 case 0: p = "Chroma"; break;
1075                 case 1: p = "BTSC"; break;
1076                 case 2: p = "EIAJ"; break;
1077                 case 3: p = "A2-M"; break;
1078                 case 4: p = "autodetect"; break;
1079                 default: p = "undefined"; break;
1080                 }
1081                 CX18_INFO("Selected 45 MHz format:    %s\n", p);
1082         }
1083 }