drivers/media/i2c/tvp5150.c

   1 /*
   2  * tvp5150 - Texas Instruments TVP5150A/AM1 and TVP5151 video decoder driver
   3  *
   4  * Copyright (c) 2005,2006 Mauro Carvalho Chehab (mchehab@infradead.org)
   5  * This code is placed under the terms of the GNU General Public License v2
   6  */
   7
   8 #include <dt-bindings/media/tvp5150.h>
   9 #include <linux/i2c.h>
  10 #include <linux/slab.h>
  11 #include <linux/videodev2.h>
  12 #include <linux/delay.h>
  13 #include <linux/gpio/consumer.h>
  14 #include <linux/module.h>
  15 #include <media/v4l2-async.h>
  16 #include <media/v4l2-device.h>
  17 #include <media/v4l2-ctrls.h>
  18 #include <media/v4l2-of.h>
  19 #include <media/v4l2-mc.h>
  20
  21 #include "tvp5150_reg.h"
  22
  23 #define TVP5150_H_MAX           720U
  24 #define TVP5150_V_MAX_525_60    480U
  25 #define TVP5150_V_MAX_OTHERS    576U
  26 #define TVP5150_MAX_CROP_LEFT   511
  27 #define TVP5150_MAX_CROP_TOP    127
  28 #define TVP5150_CROP_SHIFT      2
  29
  30 MODULE_DESCRIPTION("Texas Instruments TVP5150A/TVP5150AM1/TVP5151 video decoder driver");
  31 MODULE_AUTHOR("Mauro Carvalho Chehab");
  32 MODULE_LICENSE("GPL");
  33
  34
  35 static int debug;
  36 module_param(debug, int, 0644);
  37 MODULE_PARM_DESC(debug, "Debug level (0-2)");
  38
  39 #define dprintk0(__dev, __arg...) dev_dbg_lvl(__dev, 0, 0, __arg)
  40
  41 struct tvp5150 {
  42         struct v4l2_subdev sd;
  43 #ifdef CONFIG_MEDIA_CONTROLLER
  44         struct media_pad pads[DEMOD_NUM_PADS];
  45         struct media_entity input_ent[TVP5150_INPUT_NUM];
  46         struct media_pad input_pad[TVP5150_INPUT_NUM];
  47 #endif
  48         struct v4l2_ctrl_handler hdl;
  49         struct v4l2_rect rect;
  50
  51         v4l2_std_id norm;       /* Current set standard */
  52         u32 input;
  53         u32 output;
  54         int enable;
  55
  56         u16 dev_id;
  57         u16 rom_ver;
  58
  59         enum v4l2_mbus_type mbus_type;
  60 };
  61
  62 static inline struct tvp5150 *to_tvp5150(struct v4l2_subdev *sd)
  63 {
  64         return container_of(sd, struct tvp5150, sd);
  65 }
  66
  67 static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
  68 {
  69         return &container_of(ctrl->handler, struct tvp5150, hdl)->sd;
  70 }
  71
  72 static int tvp5150_read(struct v4l2_subdev *sd, unsigned char addr)
  73 {
  74         struct i2c_client *c = v4l2_get_subdevdata(sd);
  75         int rc;
  76
  77         rc = i2c_smbus_read_byte_data(c, addr);
  78         if (rc < 0) {
  79                 dev_err(sd->dev, "i2c i/o error: rc == %d\n", rc);
  80                 return rc;
  81         }
  82
  83         dev_dbg_lvl(sd->dev, 2, debug, "tvp5150: read 0x%02x = %02x\n", addr, rc);
  84
  85         return rc;
  86 }
  87
  88 static int tvp5150_write(struct v4l2_subdev *sd, unsigned char addr,
  89                                  unsigned char value)
  90 {
  91         struct i2c_client *c = v4l2_get_subdevdata(sd);
  92         int rc;
  93
  94         dev_dbg_lvl(sd->dev, 2, debug, "tvp5150: writing %02x %02x\n", addr, value);
  95         rc = i2c_smbus_write_byte_data(c, addr, value);
  96         if (rc < 0)
  97                 dev_err(sd->dev, "i2c i/o error: rc == %d\n", rc);
  98
  99         return rc;
 100 }
 101
 102 static void dump_reg_range(struct v4l2_subdev *sd, char *s, u8 init,
 103                                 const u8 end, int max_line)
 104 {
 105         u8 buf[16];
 106         int i = 0, j, len;
 107
 108         if (max_line > 16) {
 109                 dprintk0(sd->dev, "too much data to dump\n");
 110                 return;
 111         }
 112
 113         for (i = init; i < end; i += max_line) {
 114                 len = (end - i > max_line) ? max_line : end - i;
 115
 116                 for (j = 0; j < len; j++)
 117                         buf[j] = tvp5150_read(sd, i + j);
 118
 119                 dprintk0(sd->dev, "%s reg %02x = %*ph\n", s, i, len, buf);
 120         }
 121 }
 122
 123 static int tvp5150_log_status(struct v4l2_subdev *sd)
 124 {
 125         dprintk0(sd->dev, "tvp5150: Video input source selection #1 = 0x%02x\n",
 126                 tvp5150_read(sd, TVP5150_VD_IN_SRC_SEL_1));
 127         dprintk0(sd->dev, "tvp5150: Analog channel controls = 0x%02x\n",
 128                 tvp5150_read(sd, TVP5150_ANAL_CHL_CTL));
 129         dprintk0(sd->dev, "tvp5150: Operation mode controls = 0x%02x\n",
 130                 tvp5150_read(sd, TVP5150_OP_MODE_CTL));
 131         dprintk0(sd->dev, "tvp5150: Miscellaneous controls = 0x%02x\n",
 132                 tvp5150_read(sd, TVP5150_MISC_CTL));
 133         dprintk0(sd->dev, "tvp5150: Autoswitch mask= 0x%02x\n",
 134                 tvp5150_read(sd, TVP5150_AUTOSW_MSK));
 135         dprintk0(sd->dev, "tvp5150: Color killer threshold control = 0x%02x\n",
 136                 tvp5150_read(sd, TVP5150_COLOR_KIL_THSH_CTL));
 137         dprintk0(sd->dev, "tvp5150: Luminance processing controls #1 #2 and #3 = %02x %02x %02x\n",
 138                 tvp5150_read(sd, TVP5150_LUMA_PROC_CTL_1),
 139                 tvp5150_read(sd, TVP5150_LUMA_PROC_CTL_2),
 140                 tvp5150_read(sd, TVP5150_LUMA_PROC_CTL_3));
 141         dprintk0(sd->dev, "tvp5150: Brightness control = 0x%02x\n",
 142                 tvp5150_read(sd, TVP5150_BRIGHT_CTL));
 143         dprintk0(sd->dev, "tvp5150: Color saturation control = 0x%02x\n",
 144                 tvp5150_read(sd, TVP5150_SATURATION_CTL));
 145         dprintk0(sd->dev, "tvp5150: Hue control = 0x%02x\n",
 146                 tvp5150_read(sd, TVP5150_HUE_CTL));
 147         dprintk0(sd->dev, "tvp5150: Contrast control = 0x%02x\n",
 148                 tvp5150_read(sd, TVP5150_CONTRAST_CTL));
 149         dprintk0(sd->dev, "tvp5150: Outputs and data rates select = 0x%02x\n",
 150                 tvp5150_read(sd, TVP5150_DATA_RATE_SEL));
 151         dprintk0(sd->dev, "tvp5150: Configuration shared pins = 0x%02x\n",
 152                 tvp5150_read(sd, TVP5150_CONF_SHARED_PIN));
 153         dprintk0(sd->dev, "tvp5150: Active video cropping start = 0x%02x%02x\n",
 154                 tvp5150_read(sd, TVP5150_ACT_VD_CROP_ST_MSB),
 155                 tvp5150_read(sd, TVP5150_ACT_VD_CROP_ST_LSB));
 156         dprintk0(sd->dev, "tvp5150: Active video cropping stop  = 0x%02x%02x\n",
 157                 tvp5150_read(sd, TVP5150_ACT_VD_CROP_STP_MSB),
 158                 tvp5150_read(sd, TVP5150_ACT_VD_CROP_STP_LSB));
 159         dprintk0(sd->dev, "tvp5150: Genlock/RTC = 0x%02x\n",
 160                 tvp5150_read(sd, TVP5150_GENLOCK));
 161         dprintk0(sd->dev, "tvp5150: Horizontal sync start = 0x%02x\n",
 162                 tvp5150_read(sd, TVP5150_HORIZ_SYNC_START));
 163         dprintk0(sd->dev, "tvp5150: Vertical blanking start = 0x%02x\n",
 164                 tvp5150_read(sd, TVP5150_VERT_BLANKING_START));
 165         dprintk0(sd->dev, "tvp5150: Vertical blanking stop = 0x%02x\n",
 166                 tvp5150_read(sd, TVP5150_VERT_BLANKING_STOP));
 167         dprintk0(sd->dev, "tvp5150: Chrominance processing control #1 and #2 = %02x %02x\n",
 168                 tvp5150_read(sd, TVP5150_CHROMA_PROC_CTL_1),
 169                 tvp5150_read(sd, TVP5150_CHROMA_PROC_CTL_2));
 170         dprintk0(sd->dev, "tvp5150: Interrupt reset register B = 0x%02x\n",
 171                 tvp5150_read(sd, TVP5150_INT_RESET_REG_B));
 172         dprintk0(sd->dev, "tvp5150: Interrupt enable register B = 0x%02x\n",
 173                 tvp5150_read(sd, TVP5150_INT_ENABLE_REG_B));
 174         dprintk0(sd->dev, "tvp5150: Interrupt configuration register B = 0x%02x\n",
 175                 tvp5150_read(sd, TVP5150_INTT_CONFIG_REG_B));
 176         dprintk0(sd->dev, "tvp5150: Video standard = 0x%02x\n",
 177                 tvp5150_read(sd, TVP5150_VIDEO_STD));
 178         dprintk0(sd->dev, "tvp5150: Chroma gain factor: Cb=0x%02x Cr=0x%02x\n",
 179                 tvp5150_read(sd, TVP5150_CB_GAIN_FACT),
 180                 tvp5150_read(sd, TVP5150_CR_GAIN_FACTOR));
 181         dprintk0(sd->dev, "tvp5150: Macrovision on counter = 0x%02x\n",
 182                 tvp5150_read(sd, TVP5150_MACROVISION_ON_CTR));
 183         dprintk0(sd->dev, "tvp5150: Macrovision off counter = 0x%02x\n",
 184                 tvp5150_read(sd, TVP5150_MACROVISION_OFF_CTR));
 185         dprintk0(sd->dev, "tvp5150: ITU-R BT.656.%d timing(TVP5150AM1 only)\n",
 186                 (tvp5150_read(sd, TVP5150_REV_SELECT) & 1) ? 3 : 4);
 187         dprintk0(sd->dev, "tvp5150: Device ID = %02x%02x\n",
 188                 tvp5150_read(sd, TVP5150_MSB_DEV_ID),
 189                 tvp5150_read(sd, TVP5150_LSB_DEV_ID));
 190         dprintk0(sd->dev, "tvp5150: ROM version = (hex) %02x.%02x\n",
 191                 tvp5150_read(sd, TVP5150_ROM_MAJOR_VER),
 192                 tvp5150_read(sd, TVP5150_ROM_MINOR_VER));
 193         dprintk0(sd->dev, "tvp5150: Vertical line count = 0x%02x%02x\n",
 194                 tvp5150_read(sd, TVP5150_VERT_LN_COUNT_MSB),
 195                 tvp5150_read(sd, TVP5150_VERT_LN_COUNT_LSB));
 196         dprintk0(sd->dev, "tvp5150: Interrupt status register B = 0x%02x\n",
 197                 tvp5150_read(sd, TVP5150_INT_STATUS_REG_B));
 198         dprintk0(sd->dev, "tvp5150: Interrupt active register B = 0x%02x\n",
 199                 tvp5150_read(sd, TVP5150_INT_ACTIVE_REG_B));
 200         dprintk0(sd->dev, "tvp5150: Status regs #1 to #5 = %02x %02x %02x %02x %02x\n",
 201                 tvp5150_read(sd, TVP5150_STATUS_REG_1),
 202                 tvp5150_read(sd, TVP5150_STATUS_REG_2),
 203                 tvp5150_read(sd, TVP5150_STATUS_REG_3),
 204                 tvp5150_read(sd, TVP5150_STATUS_REG_4),
 205                 tvp5150_read(sd, TVP5150_STATUS_REG_5));
 206
 207         dump_reg_range(sd, "Teletext filter 1",   TVP5150_TELETEXT_FIL1_INI,
 208                         TVP5150_TELETEXT_FIL1_END, 8);
 209         dump_reg_range(sd, "Teletext filter 2",   TVP5150_TELETEXT_FIL2_INI,
 210                         TVP5150_TELETEXT_FIL2_END, 8);
 211
 212         dprintk0(sd->dev, "tvp5150: Teletext filter enable = 0x%02x\n",
 213                 tvp5150_read(sd, TVP5150_TELETEXT_FIL_ENA));
 214         dprintk0(sd->dev, "tvp5150: Interrupt status register A = 0x%02x\n",
 215                 tvp5150_read(sd, TVP5150_INT_STATUS_REG_A));
 216         dprintk0(sd->dev, "tvp5150: Interrupt enable register A = 0x%02x\n",
 217                 tvp5150_read(sd, TVP5150_INT_ENABLE_REG_A));
 218         dprintk0(sd->dev, "tvp5150: Interrupt configuration = 0x%02x\n",
 219                 tvp5150_read(sd, TVP5150_INT_CONF));
 220         dprintk0(sd->dev, "tvp5150: VDP status register = 0x%02x\n",
 221                 tvp5150_read(sd, TVP5150_VDP_STATUS_REG));
 222         dprintk0(sd->dev, "tvp5150: FIFO word count = 0x%02x\n",
 223                 tvp5150_read(sd, TVP5150_FIFO_WORD_COUNT));
 224         dprintk0(sd->dev, "tvp5150: FIFO interrupt threshold = 0x%02x\n",
 225                 tvp5150_read(sd, TVP5150_FIFO_INT_THRESHOLD));
 226         dprintk0(sd->dev, "tvp5150: FIFO reset = 0x%02x\n",
 227                 tvp5150_read(sd, TVP5150_FIFO_RESET));
 228         dprintk0(sd->dev, "tvp5150: Line number interrupt = 0x%02x\n",
 229                 tvp5150_read(sd, TVP5150_LINE_NUMBER_INT));
 230         dprintk0(sd->dev, "tvp5150: Pixel alignment register = 0x%02x%02x\n",
 231                 tvp5150_read(sd, TVP5150_PIX_ALIGN_REG_HIGH),
 232                 tvp5150_read(sd, TVP5150_PIX_ALIGN_REG_LOW));
 233         dprintk0(sd->dev, "tvp5150: FIFO output control = 0x%02x\n",
 234                 tvp5150_read(sd, TVP5150_FIFO_OUT_CTRL));
 235         dprintk0(sd->dev, "tvp5150: Full field enable = 0x%02x\n",
 236                 tvp5150_read(sd, TVP5150_FULL_FIELD_ENA));
 237         dprintk0(sd->dev, "tvp5150: Full field mode register = 0x%02x\n",
 238                 tvp5150_read(sd, TVP5150_FULL_FIELD_MODE_REG));
 239
 240         dump_reg_range(sd, "CC   data",   TVP5150_CC_DATA_INI,
 241                         TVP5150_CC_DATA_END, 8);
 242
 243         dump_reg_range(sd, "WSS  data",   TVP5150_WSS_DATA_INI,
 244                         TVP5150_WSS_DATA_END, 8);
 245
 246         dump_reg_range(sd, "VPS  data",   TVP5150_VPS_DATA_INI,
 247                         TVP5150_VPS_DATA_END, 8);
 248
 249         dump_reg_range(sd, "VITC data",   TVP5150_VITC_DATA_INI,
 250                         TVP5150_VITC_DATA_END, 10);
 251
 252         dump_reg_range(sd, "Line mode",   TVP5150_LINE_MODE_INI,
 253                         TVP5150_LINE_MODE_END, 8);
 254         return 0;
 255 }
 256
 257 /****************************************************************************
 258                         Basic functions
 259  ****************************************************************************/
 260
 261 static void tvp5150_selmux(struct v4l2_subdev *sd)
 262 {
 263         int opmode = 0;
 264         struct tvp5150 *decoder = to_tvp5150(sd);
 265         int input = 0;
 266         int val;
 267
 268         /* Only tvp5150am1 and tvp5151 have signal generator support */
 269         if ((decoder->dev_id == 0x5150 && decoder->rom_ver == 0x0400) ||
 270             (decoder->dev_id == 0x5151 && decoder->rom_ver == 0x0100)) {
 271                 if (!decoder->enable)
 272                         input = 8;
 273         }
 274
 275         switch (decoder->input) {
 276         case TVP5150_COMPOSITE1:
 277                 input |= 2;
 278                 /* fall through */
 279         case TVP5150_COMPOSITE0:
 280                 break;
 281         case TVP5150_SVIDEO:
 282         default:
 283                 input |= 1;
 284                 break;
 285         }
 286
 287         dev_dbg_lvl(sd->dev, 1, debug, "Selecting video route: route input=%i, output=%i => tvp5150 input=%i, opmode=%i\n",
 288                         decoder->input, decoder->output,
 289                         input, opmode);
 290
 291         tvp5150_write(sd, TVP5150_OP_MODE_CTL, opmode);
 292         tvp5150_write(sd, TVP5150_VD_IN_SRC_SEL_1, input);
 293
 294         /* Svideo should enable YCrCb output and disable GPCL output
 295          * For Composite and TV, it should be the reverse
 296          */
 297         val = tvp5150_read(sd, TVP5150_MISC_CTL);
 298         if (val < 0) {
 299                 dev_err(sd->dev, "%s: failed with error = %d\n", __func__, val);
 300                 return;
 301         }
 302
 303         if (decoder->input == TVP5150_SVIDEO)
 304                 val = (val & ~0x40) | 0x10;
 305         else
 306                 val = (val & ~0x10) | 0x40;
 307         tvp5150_write(sd, TVP5150_MISC_CTL, val);
 308 };
 309
 310 struct i2c_reg_value {
 311         unsigned char reg;
 312         unsigned char value;
 313 };
 314
 315 /* Default values as sugested at TVP5150AM1 datasheet */
 316 static const struct i2c_reg_value tvp5150_init_default[] = {
 317         { /* 0x00 */
 318                 TVP5150_VD_IN_SRC_SEL_1,0x00
 319         },
 320         { /* 0x01 */
 321                 TVP5150_ANAL_CHL_CTL,0x15
 322         },
 323         { /* 0x02 */
 324                 TVP5150_OP_MODE_CTL,0x00
 325         },
 326         { /* 0x03 */
 327                 TVP5150_MISC_CTL,0x01
 328         },
 329         { /* 0x06 */
 330                 TVP5150_COLOR_KIL_THSH_CTL,0x10
 331         },
 332         { /* 0x07 */
 333                 TVP5150_LUMA_PROC_CTL_1,0x60
 334         },
 335         { /* 0x08 */
 336                 TVP5150_LUMA_PROC_CTL_2,0x00
 337         },
 338         { /* 0x09 */
 339                 TVP5150_BRIGHT_CTL,0x80
 340         },
 341         { /* 0x0a */
 342                 TVP5150_SATURATION_CTL,0x80
 343         },
 344         { /* 0x0b */
 345                 TVP5150_HUE_CTL,0x00
 346         },
 347         { /* 0x0c */
 348                 TVP5150_CONTRAST_CTL,0x80
 349         },
 350         { /* 0x0d */
 351                 TVP5150_DATA_RATE_SEL,0x47
 352         },
 353         { /* 0x0e */
 354                 TVP5150_LUMA_PROC_CTL_3,0x00
 355         },
 356         { /* 0x0f */
 357                 TVP5150_CONF_SHARED_PIN,0x08
 358         },
 359         { /* 0x11 */
 360                 TVP5150_ACT_VD_CROP_ST_MSB,0x00
 361         },
 362         { /* 0x12 */
 363                 TVP5150_ACT_VD_CROP_ST_LSB,0x00
 364         },
 365         { /* 0x13 */
 366                 TVP5150_ACT_VD_CROP_STP_MSB,0x00
 367         },
 368         { /* 0x14 */
 369                 TVP5150_ACT_VD_CROP_STP_LSB,0x00
 370         },
 371         { /* 0x15 */
 372                 TVP5150_GENLOCK,0x01
 373         },
 374         { /* 0x16 */
 375                 TVP5150_HORIZ_SYNC_START,0x80
 376         },
 377         { /* 0x18 */
 378                 TVP5150_VERT_BLANKING_START,0x00
 379         },
 380         { /* 0x19 */
 381                 TVP5150_VERT_BLANKING_STOP,0x00
 382         },
 383         { /* 0x1a */
 384                 TVP5150_CHROMA_PROC_CTL_1,0x0c
 385         },
 386         { /* 0x1b */
 387                 TVP5150_CHROMA_PROC_CTL_2,0x14
 388         },
 389         { /* 0x1c */
 390                 TVP5150_INT_RESET_REG_B,0x00
 391         },
 392         { /* 0x1d */
 393                 TVP5150_INT_ENABLE_REG_B,0x00
 394         },
 395         { /* 0x1e */
 396                 TVP5150_INTT_CONFIG_REG_B,0x00
 397         },
 398         { /* 0x28 */
 399                 TVP5150_VIDEO_STD,0x00
 400         },
 401         { /* 0x2e */
 402                 TVP5150_MACROVISION_ON_CTR,0x0f
 403         },
 404         { /* 0x2f */
 405                 TVP5150_MACROVISION_OFF_CTR,0x01
 406         },
 407         { /* 0xbb */
 408                 TVP5150_TELETEXT_FIL_ENA,0x00
 409         },
 410         { /* 0xc0 */
 411                 TVP5150_INT_STATUS_REG_A,0x00
 412         },
 413         { /* 0xc1 */
 414                 TVP5150_INT_ENABLE_REG_A,0x00
 415         },
 416         { /* 0xc2 */
 417                 TVP5150_INT_CONF,0x04
 418         },
 419         { /* 0xc8 */
 420                 TVP5150_FIFO_INT_THRESHOLD,0x80
 421         },
 422         { /* 0xc9 */
 423                 TVP5150_FIFO_RESET,0x00
 424         },
 425         { /* 0xca */
 426                 TVP5150_LINE_NUMBER_INT,0x00
 427         },
 428         { /* 0xcb */
 429                 TVP5150_PIX_ALIGN_REG_LOW,0x4e
 430         },
 431         { /* 0xcc */
 432                 TVP5150_PIX_ALIGN_REG_HIGH,0x00
 433         },
 434         { /* 0xcd */
 435                 TVP5150_FIFO_OUT_CTRL,0x01
 436         },
 437         { /* 0xcf */
 438                 TVP5150_FULL_FIELD_ENA,0x00
 439         },
 440         { /* 0xd0 */
 441                 TVP5150_LINE_MODE_INI,0x00
 442         },
 443         { /* 0xfc */
 444                 TVP5150_FULL_FIELD_MODE_REG,0x7f
 445         },
 446         { /* end of data */
 447                 0xff,0xff
 448         }
 449 };
 450
 451 /* Default values as sugested at TVP5150AM1 datasheet */
 452 static const struct i2c_reg_value tvp5150_init_enable[] = {
 453         {
 454                 TVP5150_CONF_SHARED_PIN, 2
 455         },{     /* Automatic offset and AGC enabled */
 456                 TVP5150_ANAL_CHL_CTL, 0x15
 457         },{     /* Activate YCrCb output 0x9 or 0xd ? */
 458                 TVP5150_MISC_CTL, 0x6f
 459         },{     /* Activates video std autodetection for all standards */
 460                 TVP5150_AUTOSW_MSK, 0x0
 461         },{     /* Default format: 0x47. For 4:2:2: 0x40 */
 462                 TVP5150_DATA_RATE_SEL, 0x47
 463         },{
 464                 TVP5150_CHROMA_PROC_CTL_1, 0x0c
 465         },{
 466                 TVP5150_CHROMA_PROC_CTL_2, 0x54
 467         },{     /* Non documented, but initialized on WinTV USB2 */
 468                 0x27, 0x20
 469         },{
 470                 0xff,0xff
 471         }
 472 };
 473
 474 struct tvp5150_vbi_type {
 475         unsigned int vbi_type;
 476         unsigned int ini_line;
 477         unsigned int end_line;
 478         unsigned int by_field :1;
 479 };
 480
 481 struct i2c_vbi_ram_value {
 482         u16 reg;
 483         struct tvp5150_vbi_type type;
 484         unsigned char values[16];
 485 };
 486
 487 /* This struct have the values for each supported VBI Standard
 488  * by
 489  tvp5150_vbi_types should follow the same order as vbi_ram_default
 490  * value 0 means rom position 0x10, value 1 means rom position 0x30
 491  * and so on. There are 16 possible locations from 0 to 15.
 492  */
 493
 494 static struct i2c_vbi_ram_value vbi_ram_default[] =
 495 {
 496         /* FIXME: Current api doesn't handle all VBI types, those not
 497            yet supported are placed under #if 0 */
 498 #if 0
 499         {0x010, /* Teletext, SECAM, WST System A */
 500                 {V4L2_SLICED_TELETEXT_SECAM,6,23,1},
 501                 { 0xaa, 0xaa, 0xff, 0xff, 0xe7, 0x2e, 0x20, 0x26,
 502                   0xe6, 0xb4, 0x0e, 0x00, 0x00, 0x00, 0x10, 0x00 }
 503         },
 504 #endif
 505         {0x030, /* Teletext, PAL, WST System B */
 506                 {V4L2_SLICED_TELETEXT_B,6,22,1},
 507                 { 0xaa, 0xaa, 0xff, 0xff, 0x27, 0x2e, 0x20, 0x2b,
 508                   0xa6, 0x72, 0x10, 0x00, 0x00, 0x00, 0x10, 0x00 }
 509         },
 510 #if 0
 511         {0x050, /* Teletext, PAL, WST System C */
 512                 {V4L2_SLICED_TELETEXT_PAL_C,6,22,1},
 513                 { 0xaa, 0xaa, 0xff, 0xff, 0xe7, 0x2e, 0x20, 0x22,
 514                   0xa6, 0x98, 0x0d, 0x00, 0x00, 0x00, 0x10, 0x00 }
 515         },
 516         {0x070, /* Teletext, NTSC, WST System B */
 517                 {V4L2_SLICED_TELETEXT_NTSC_B,10,21,1},
 518                 { 0xaa, 0xaa, 0xff, 0xff, 0x27, 0x2e, 0x20, 0x23,
 519                   0x69, 0x93, 0x0d, 0x00, 0x00, 0x00, 0x10, 0x00 }
 520         },
 521         {0x090, /* Tetetext, NTSC NABTS System C */
 522                 {V4L2_SLICED_TELETEXT_NTSC_C,10,21,1},
 523                 { 0xaa, 0xaa, 0xff, 0xff, 0xe7, 0x2e, 0x20, 0x22,
 524                   0x69, 0x93, 0x0d, 0x00, 0x00, 0x00, 0x15, 0x00 }
 525         },
 526         {0x0b0, /* Teletext, NTSC-J, NABTS System D */
 527                 {V4L2_SLICED_TELETEXT_NTSC_D,10,21,1},
 528                 { 0xaa, 0xaa, 0xff, 0xff, 0xa7, 0x2e, 0x20, 0x23,
 529                   0x69, 0x93, 0x0d, 0x00, 0x00, 0x00, 0x10, 0x00 }
 530         },
 531         {0x0d0, /* Closed Caption, PAL/SECAM */
 532                 {V4L2_SLICED_CAPTION_625,22,22,1},
 533                 { 0xaa, 0x2a, 0xff, 0x3f, 0x04, 0x51, 0x6e, 0x02,
 534                   0xa6, 0x7b, 0x09, 0x00, 0x00, 0x00, 0x27, 0x00 }
 535         },
 536 #endif
 537         {0x0f0, /* Closed Caption, NTSC */
 538                 {V4L2_SLICED_CAPTION_525,21,21,1},
 539                 { 0xaa, 0x2a, 0xff, 0x3f, 0x04, 0x51, 0x6e, 0x02,
 540                   0x69, 0x8c, 0x09, 0x00, 0x00, 0x00, 0x27, 0x00 }
 541         },
 542         {0x110, /* Wide Screen Signal, PAL/SECAM */
 543                 {V4L2_SLICED_WSS_625,23,23,1},
 544                 { 0x5b, 0x55, 0xc5, 0xff, 0x00, 0x71, 0x6e, 0x42,
 545                   0xa6, 0xcd, 0x0f, 0x00, 0x00, 0x00, 0x3a, 0x00 }
 546         },
 547 #if 0
 548         {0x130, /* Wide Screen Signal, NTSC C */
 549                 {V4L2_SLICED_WSS_525,20,20,1},
 550                 { 0x38, 0x00, 0x3f, 0x00, 0x00, 0x71, 0x6e, 0x43,
 551                   0x69, 0x7c, 0x08, 0x00, 0x00, 0x00, 0x39, 0x00 }
 552         },
 553         {0x150, /* Vertical Interval Timecode (VITC), PAL/SECAM */
 554                 {V4l2_SLICED_VITC_625,6,22,0},
 555                 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x8f, 0x6d, 0x49,
 556                   0xa6, 0x85, 0x08, 0x00, 0x00, 0x00, 0x4c, 0x00 }
 557         },
 558         {0x170, /* Vertical Interval Timecode (VITC), NTSC */
 559                 {V4l2_SLICED_VITC_525,10,20,0},
 560                 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x8f, 0x6d, 0x49,
 561                   0x69, 0x94, 0x08, 0x00, 0x00, 0x00, 0x4c, 0x00 }
 562         },
 563 #endif
 564         {0x190, /* Video Program System (VPS), PAL */
 565                 {V4L2_SLICED_VPS,16,16,0},
 566                 { 0xaa, 0xaa, 0xff, 0xff, 0xba, 0xce, 0x2b, 0x0d,
 567                   0xa6, 0xda, 0x0b, 0x00, 0x00, 0x00, 0x60, 0x00 }
 568         },
 569         /* 0x1d0 User programmable */
 570
 571         /* End of struct */
 572         { (u16)-1 }
 573 };
 574
 575 static int tvp5150_write_inittab(struct v4l2_subdev *sd,
 576                                 const struct i2c_reg_value *regs)
 577 {
 578         while (regs->reg != 0xff) {
 579                 tvp5150_write(sd, regs->reg, regs->value);
 580                 regs++;
 581         }
 582         return 0;
 583 }
 584
 585 static int tvp5150_vdp_init(struct v4l2_subdev *sd,
 586                                 const struct i2c_vbi_ram_value *regs)
 587 {
 588         unsigned int i;
 589
 590         /* Disable Full Field */
 591         tvp5150_write(sd, TVP5150_FULL_FIELD_ENA, 0);
 592
 593         /* Before programming, Line mode should be at 0xff */
 594         for (i = TVP5150_LINE_MODE_INI; i <= TVP5150_LINE_MODE_END; i++)
 595                 tvp5150_write(sd, i, 0xff);
 596
 597         /* Load Ram Table */
 598         while (regs->reg != (u16)-1) {
 599                 tvp5150_write(sd, TVP5150_CONF_RAM_ADDR_HIGH, regs->reg >> 8);
 600                 tvp5150_write(sd, TVP5150_CONF_RAM_ADDR_LOW, regs->reg);
 601
 602                 for (i = 0; i < 16; i++)
 603                         tvp5150_write(sd, TVP5150_VDP_CONF_RAM_DATA, regs->values[i]);
 604
 605                 regs++;
 606         }
 607         return 0;
 608 }
 609
 610 /* Fills VBI capabilities based on i2c_vbi_ram_value struct */
 611 static int tvp5150_g_sliced_vbi_cap(struct v4l2_subdev *sd,
 612                                 struct v4l2_sliced_vbi_cap *cap)
 613 {
 614         const struct i2c_vbi_ram_value *regs = vbi_ram_default;
 615         int line;
 616
 617         dev_dbg_lvl(sd->dev, 1, debug, "g_sliced_vbi_cap\n");
 618         memset(cap, 0, sizeof *cap);
 619
 620         while (regs->reg != (u16)-1 ) {
 621                 for (line=regs->type.ini_line;line<=regs->type.end_line;line++) {
 622                         cap->service_lines[0][line] |= regs->type.vbi_type;
 623                 }
 624                 cap->service_set |= regs->type.vbi_type;
 625
 626                 regs++;
 627         }
 628         return 0;
 629 }
 630
 631 /* Set vbi processing
 632  * type - one of tvp5150_vbi_types
 633  * line - line to gather data
 634  * fields: bit 0 field1, bit 1, field2
 635  * flags (default=0xf0) is a bitmask, were set means:
 636  *      bit 7: enable filtering null bytes on CC
 637  *      bit 6: send data also to FIFO
 638  *      bit 5: don't allow data with errors on FIFO
 639  *      bit 4: enable ECC when possible
 640  * pix_align = pix alignment:
 641  *      LSB = field1
 642  *      MSB = field2
 643  */
 644 static int tvp5150_set_vbi(struct v4l2_subdev *sd,
 645                         const struct i2c_vbi_ram_value *regs,
 646                         unsigned int type,u8 flags, int line,
 647                         const int fields)
 648 {
 649         struct tvp5150 *decoder = to_tvp5150(sd);
 650         v4l2_std_id std = decoder->norm;
 651         u8 reg;
 652         int pos=0;
 653
 654         if (std == V4L2_STD_ALL) {
 655                 dev_err(sd->dev, "VBI can't be configured without knowing number of lines\n");
 656                 return 0;
 657         } else if (std & V4L2_STD_625_50) {
 658                 /* Don't follow NTSC Line number convension */
 659                 line += 3;
 660         }
 661
 662         if (line<6||line>27)
 663                 return 0;
 664
 665         while (regs->reg != (u16)-1 ) {
 666                 if ((type & regs->type.vbi_type) &&
 667                     (line>=regs->type.ini_line) &&
 668                     (line<=regs->type.end_line)) {
 669                         type=regs->type.vbi_type;
 670                         break;
 671                 }
 672
 673                 regs++;
 674                 pos++;
 675         }
 676         if (regs->reg == (u16)-1)
 677                 return 0;
 678
 679         type=pos | (flags & 0xf0);
 680         reg=((line-6)<<1)+TVP5150_LINE_MODE_INI;
 681
 682         if (fields&1) {
 683                 tvp5150_write(sd, reg, type);
 684         }
 685
 686         if (fields&2) {
 687                 tvp5150_write(sd, reg+1, type);
 688         }
 689
 690         return type;
 691 }
 692
 693 static int tvp5150_get_vbi(struct v4l2_subdev *sd,
 694                         const struct i2c_vbi_ram_value *regs, int line)
 695 {
 696         struct tvp5150 *decoder = to_tvp5150(sd);
 697         v4l2_std_id std = decoder->norm;
 698         u8 reg;
 699         int pos, type = 0;
 700         int i, ret = 0;
 701
 702         if (std == V4L2_STD_ALL) {
 703                 dev_err(sd->dev, "VBI can't be configured without knowing number of lines\n");
 704                 return 0;
 705         } else if (std & V4L2_STD_625_50) {
 706                 /* Don't follow NTSC Line number convension */
 707                 line += 3;
 708         }
 709
 710         if (line < 6 || line > 27)
 711                 return 0;
 712
 713         reg = ((line - 6) << 1) + TVP5150_LINE_MODE_INI;
 714
 715         for (i = 0; i <= 1; i++) {
 716                 ret = tvp5150_read(sd, reg + i);
 717                 if (ret < 0) {
 718                         dev_err(sd->dev, "%s: failed with error = %d\n",
 719                                  __func__, ret);
 720                         return 0;
 721                 }
 722                 pos = ret & 0x0f;
 723                 if (pos < 0x0f)
 724                         type |= regs[pos].type.vbi_type;
 725         }
 726
 727         return type;
 728 }
 729
 730 static int tvp5150_set_std(struct v4l2_subdev *sd, v4l2_std_id std)
 731 {
 732         struct tvp5150 *decoder = to_tvp5150(sd);
 733         int fmt = 0;
 734
 735         decoder->norm = std;
 736
 737         /* First tests should be against specific std */
 738
 739         if (std == V4L2_STD_NTSC_443) {
 740                 fmt = VIDEO_STD_NTSC_4_43_BIT;
 741         } else if (std == V4L2_STD_PAL_M) {
 742                 fmt = VIDEO_STD_PAL_M_BIT;
 743         } else if (std == V4L2_STD_PAL_N || std == V4L2_STD_PAL_Nc) {
 744                 fmt = VIDEO_STD_PAL_COMBINATION_N_BIT;
 745         } else {
 746                 /* Then, test against generic ones */
 747                 if (std & V4L2_STD_NTSC)
 748                         fmt = VIDEO_STD_NTSC_MJ_BIT;
 749                 else if (std & V4L2_STD_PAL)
 750                         fmt = VIDEO_STD_PAL_BDGHIN_BIT;
 751                 else if (std & V4L2_STD_SECAM)
 752                         fmt = VIDEO_STD_SECAM_BIT;
 753         }
 754
 755         dev_dbg_lvl(sd->dev, 1, debug, "Set video std register to %d.\n", fmt);
 756         tvp5150_write(sd, TVP5150_VIDEO_STD, fmt);
 757         return 0;
 758 }
 759
 760 static int tvp5150_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
 761 {
 762         struct tvp5150 *decoder = to_tvp5150(sd);
 763
 764         if (decoder->norm == std)
 765                 return 0;
 766
 767         /* Change cropping height limits */
 768         if (std & V4L2_STD_525_60)
 769                 decoder->rect.height = TVP5150_V_MAX_525_60;
 770         else
 771                 decoder->rect.height = TVP5150_V_MAX_OTHERS;
 772
 773
 774         return tvp5150_set_std(sd, std);
 775 }
 776
 777 static int tvp5150_reset(struct v4l2_subdev *sd, u32 val)
 778 {
 779         struct tvp5150 *decoder = to_tvp5150(sd);
 780
 781         /* Initializes TVP5150 to its default values */
 782         tvp5150_write_inittab(sd, tvp5150_init_default);
 783
 784         /* Initializes VDP registers */
 785         tvp5150_vdp_init(sd, vbi_ram_default);
 786
 787         /* Selects decoder input */
 788         tvp5150_selmux(sd);
 789
 790         /* Initializes TVP5150 to stream enabled values */
 791         tvp5150_write_inittab(sd, tvp5150_init_enable);
 792
 793         /* Initialize image preferences */
 794         v4l2_ctrl_handler_setup(&decoder->hdl);
 795
 796         tvp5150_set_std(sd, decoder->norm);
 797
 798         if (decoder->mbus_type == V4L2_MBUS_PARALLEL)
 799                 tvp5150_write(sd, TVP5150_DATA_RATE_SEL, 0x40);
 800
 801         return 0;
 802 };
 803
 804 static int tvp5150_s_ctrl(struct v4l2_ctrl *ctrl)
 805 {
 806         struct v4l2_subdev *sd = to_sd(ctrl);
 807         struct tvp5150 *decoder = to_tvp5150(sd);
 808
 809         switch (ctrl->id) {
 810         case V4L2_CID_BRIGHTNESS:
 811                 tvp5150_write(sd, TVP5150_BRIGHT_CTL, ctrl->val);
 812                 return 0;
 813         case V4L2_CID_CONTRAST:
 814                 tvp5150_write(sd, TVP5150_CONTRAST_CTL, ctrl->val);
 815                 return 0;
 816         case V4L2_CID_SATURATION:
 817                 tvp5150_write(sd, TVP5150_SATURATION_CTL, ctrl->val);
 818                 return 0;
 819         case V4L2_CID_HUE:
 820                 tvp5150_write(sd, TVP5150_HUE_CTL, ctrl->val);
 821                 break;
 822         case V4L2_CID_TEST_PATTERN:
 823                 decoder->enable = ctrl->val ? false : true;
 824                 tvp5150_selmux(sd);
 825                 return 0;
 826         }
 827         return -EINVAL;
 828 }
 829
 830 static v4l2_std_id tvp5150_read_std(struct v4l2_subdev *sd)
 831 {
 832         int val = tvp5150_read(sd, TVP5150_STATUS_REG_5);
 833
 834         switch (val & 0x0F) {
 835         case 0x01:
 836                 return V4L2_STD_NTSC;
 837         case 0x03:
 838                 return V4L2_STD_PAL;
 839         case 0x05:
 840                 return V4L2_STD_PAL_M;
 841         case 0x07:
 842                 return V4L2_STD_PAL_N | V4L2_STD_PAL_Nc;
 843         case 0x09:
 844                 return V4L2_STD_NTSC_443;
 845         case 0xb:
 846                 return V4L2_STD_SECAM;
 847         default:
 848                 return V4L2_STD_UNKNOWN;
 849         }
 850 }
 851
 852 static int tvp5150_fill_fmt(struct v4l2_subdev *sd,
 853                 struct v4l2_subdev_pad_config *cfg,
 854                 struct v4l2_subdev_format *format)
 855 {
 856         struct v4l2_mbus_framefmt *f;
 857         struct tvp5150 *decoder = to_tvp5150(sd);
 858
 859         if (!format || format->pad)
 860                 return -EINVAL;
 861
 862         f = &format->format;
 863
 864         tvp5150_reset(sd, 0);
 865
 866         f->width = decoder->rect.width;
 867         f->height = decoder->rect.height / 2;
 868
 869         f->code = MEDIA_BUS_FMT_UYVY8_2X8;
 870         f->field = V4L2_FIELD_ALTERNATE;
 871         f->colorspace = V4L2_COLORSPACE_SMPTE170M;
 872
 873         dev_dbg_lvl(sd->dev, 1, debug, "width = %d, height = %d\n", f->width,
 874                         f->height);
 875         return 0;
 876 }
 877
 878 static int tvp5150_set_selection(struct v4l2_subdev *sd,
 879                                  struct v4l2_subdev_pad_config *cfg,
 880                                  struct v4l2_subdev_selection *sel)
 881 {
 882         struct tvp5150 *decoder = to_tvp5150(sd);
 883         struct v4l2_rect rect = sel->r;
 884         v4l2_std_id std;
 885         int hmax;
 886
 887         if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE ||
 888             sel->target != V4L2_SEL_TGT_CROP)
 889                 return -EINVAL;
 890
 891         dev_dbg_lvl(sd->dev, 1, debug, "%s left=%d, top=%d, width=%d, height=%d\n",
 892                 __func__, rect.left, rect.top, rect.width, rect.height);
 893
 894         /* tvp5150 has some special limits */
 895         rect.left = clamp(rect.left, 0, TVP5150_MAX_CROP_LEFT);
 896         rect.width = clamp_t(unsigned int, rect.width,
 897                              TVP5150_H_MAX - TVP5150_MAX_CROP_LEFT - rect.left,
 898                              TVP5150_H_MAX - rect.left);
 899         rect.top = clamp(rect.top, 0, TVP5150_MAX_CROP_TOP);
 900
 901         /* Calculate height based on current standard */
 902         if (decoder->norm == V4L2_STD_ALL)
 903                 std = tvp5150_read_std(sd);
 904         else
 905                 std = decoder->norm;
 906
 907         if (std & V4L2_STD_525_60)
 908                 hmax = TVP5150_V_MAX_525_60;
 909         else
 910                 hmax = TVP5150_V_MAX_OTHERS;
 911
 912         rect.height = clamp_t(unsigned int, rect.height,
 913                               hmax - TVP5150_MAX_CROP_TOP - rect.top,
 914                               hmax - rect.top);
 915
 916         tvp5150_write(sd, TVP5150_VERT_BLANKING_START, rect.top);
 917         tvp5150_write(sd, TVP5150_VERT_BLANKING_STOP,
 918                       rect.top + rect.height - hmax);
 919         tvp5150_write(sd, TVP5150_ACT_VD_CROP_ST_MSB,
 920                       rect.left >> TVP5150_CROP_SHIFT);
 921         tvp5150_write(sd, TVP5150_ACT_VD_CROP_ST_LSB,
 922                       rect.left | (1 << TVP5150_CROP_SHIFT));
 923         tvp5150_write(sd, TVP5150_ACT_VD_CROP_STP_MSB,
 924                       (rect.left + rect.width - TVP5150_MAX_CROP_LEFT) >>
 925                       TVP5150_CROP_SHIFT);
 926         tvp5150_write(sd, TVP5150_ACT_VD_CROP_STP_LSB,
 927                       rect.left + rect.width - TVP5150_MAX_CROP_LEFT);
 928
 929         decoder->rect = rect;
 930
 931         return 0;
 932 }
 933
 934 static int tvp5150_get_selection(struct v4l2_subdev *sd,
 935                                  struct v4l2_subdev_pad_config *cfg,
 936                                  struct v4l2_subdev_selection *sel)
 937 {
 938         struct tvp5150 *decoder = container_of(sd, struct tvp5150, sd);
 939         v4l2_std_id std;
 940
 941         if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE)
 942                 return -EINVAL;
 943
 944         switch (sel->target) {
 945         case V4L2_SEL_TGT_CROP_BOUNDS:
 946         case V4L2_SEL_TGT_CROP_DEFAULT:
 947                 sel->r.left = 0;
 948                 sel->r.top = 0;
 949                 sel->r.width = TVP5150_H_MAX;
 950
 951                 /* Calculate height based on current standard */
 952                 if (decoder->norm == V4L2_STD_ALL)
 953                         std = tvp5150_read_std(sd);
 954                 else
 955                         std = decoder->norm;
 956                 if (std & V4L2_STD_525_60)
 957                         sel->r.height = TVP5150_V_MAX_525_60;
 958                 else
 959                         sel->r.height = TVP5150_V_MAX_OTHERS;
 960                 return 0;
 961         case V4L2_SEL_TGT_CROP:
 962                 sel->r = decoder->rect;
 963                 return 0;
 964         default:
 965                 return -EINVAL;
 966         }
 967 }
 968
 969 static int tvp5150_g_mbus_config(struct v4l2_subdev *sd,
 970                                  struct v4l2_mbus_config *cfg)
 971 {
 972         struct tvp5150 *decoder = to_tvp5150(sd);
 973
 974         cfg->type = decoder->mbus_type;
 975         cfg->flags = V4L2_MBUS_MASTER | V4L2_MBUS_PCLK_SAMPLE_RISING
 976                    | V4L2_MBUS_FIELD_EVEN_LOW | V4L2_MBUS_DATA_ACTIVE_HIGH;
 977
 978         return 0;
 979 }
 980
 981 /****************************************************************************
 982                         V4L2 subdev pad ops
 983  ****************************************************************************/
 984 static int tvp5150_enum_mbus_code(struct v4l2_subdev *sd,
 985                 struct v4l2_subdev_pad_config *cfg,
 986                 struct v4l2_subdev_mbus_code_enum *code)
 987 {
 988         if (code->pad || code->index)
 989                 return -EINVAL;
 990
 991         code->code = MEDIA_BUS_FMT_UYVY8_2X8;
 992         return 0;
 993 }
 994
 995 static int tvp5150_enum_frame_size(struct v4l2_subdev *sd,
 996                                    struct v4l2_subdev_pad_config *cfg,
 997                                    struct v4l2_subdev_frame_size_enum *fse)
 998 {
 999         struct tvp5150 *decoder = to_tvp5150(sd);
1000
1001         if (fse->index >= 8 || fse->code != MEDIA_BUS_FMT_UYVY8_2X8)
1002                 return -EINVAL;
1003
1004         fse->code = MEDIA_BUS_FMT_UYVY8_2X8;
1005         fse->min_width = decoder->rect.width;
1006         fse->max_width = decoder->rect.width;
1007         fse->min_height = decoder->rect.height / 2;
1008         fse->max_height = decoder->rect.height / 2;
1009
1010         return 0;
1011 }
1012
1013 /****************************************************************************
1014                         Media entity ops
1015  ****************************************************************************/
1016
1017 #ifdef CONFIG_MEDIA_CONTROLLER
1018 static int tvp5150_link_setup(struct media_entity *entity,
1019                               const struct media_pad *local,
1020                               const struct media_pad *remote, u32 flags)
1021 {
1022         struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity);
1023         struct tvp5150 *decoder = to_tvp5150(sd);
1024         int i;
1025
1026         for (i = 0; i < TVP5150_INPUT_NUM; i++) {
1027                 if (remote->entity == &decoder->input_ent[i])
1028                         break;
1029         }
1030
1031         /* Do nothing for entities that are not input connectors */
1032         if (i == TVP5150_INPUT_NUM)
1033                 return 0;
1034
1035         decoder->input = i;
1036
1037         tvp5150_selmux(sd);
1038
1039         return 0;
1040 }
1041
1042 static const struct media_entity_operations tvp5150_sd_media_ops = {
1043         .link_setup = tvp5150_link_setup,
1044 };
1045 #endif
1046
1047 /****************************************************************************
1048                         I2C Command
1049  ****************************************************************************/
1050
1051 static int tvp5150_s_stream(struct v4l2_subdev *sd, int enable)
1052 {
1053         struct tvp5150 *decoder = to_tvp5150(sd);
1054         /* Output format: 8-bit ITU-R BT.656 with embedded syncs */
1055         int val = 0x09;
1056
1057         /* Output format: 8-bit 4:2:2 YUV with discrete sync */
1058         if (decoder->mbus_type == V4L2_MBUS_PARALLEL)
1059                 val = 0x0d;
1060
1061         /* Initializes TVP5150 to its default values */
1062         /* # set PCLK (27MHz) */
1063         tvp5150_write(sd, TVP5150_CONF_SHARED_PIN, 0x00);
1064
1065         if (enable)
1066                 tvp5150_write(sd, TVP5150_MISC_CTL, val);
1067         else
1068                 tvp5150_write(sd, TVP5150_MISC_CTL, 0x00);
1069
1070         return 0;
1071 }
1072
1073 static int tvp5150_s_routing(struct v4l2_subdev *sd,
1074                              u32 input, u32 output, u32 config)
1075 {
1076         struct tvp5150 *decoder = to_tvp5150(sd);
1077
1078         decoder->input = input;
1079         decoder->output = output;
1080
1081         if (output == TVP5150_BLACK_SCREEN)
1082                 decoder->enable = false;
1083         else
1084                 decoder->enable = true;
1085
1086         tvp5150_selmux(sd);
1087         return 0;
1088 }
1089
1090 static int tvp5150_s_raw_fmt(struct v4l2_subdev *sd, struct v4l2_vbi_format *fmt)
1091 {
1092         /* this is for capturing 36 raw vbi lines
1093            if there's a way to cut off the beginning 2 vbi lines
1094            with the tvp5150 then the vbi line count could be lowered
1095            to 17 lines/field again, although I couldn't find a register
1096            which could do that cropping */
1097         if (fmt->sample_format == V4L2_PIX_FMT_GREY)
1098                 tvp5150_write(sd, TVP5150_LUMA_PROC_CTL_1, 0x70);
1099         if (fmt->count[0] == 18 && fmt->count[1] == 18) {
1100                 tvp5150_write(sd, TVP5150_VERT_BLANKING_START, 0x00);
1101                 tvp5150_write(sd, TVP5150_VERT_BLANKING_STOP, 0x01);
1102         }
1103         return 0;
1104 }
1105
1106 static int tvp5150_s_sliced_fmt(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_format *svbi)
1107 {
1108         int i;
1109
1110         if (svbi->service_set != 0) {
1111                 for (i = 0; i <= 23; i++) {
1112                         svbi->service_lines[1][i] = 0;
1113                         svbi->service_lines[0][i] =
1114                                 tvp5150_set_vbi(sd, vbi_ram_default,
1115                                        svbi->service_lines[0][i], 0xf0, i, 3);
1116                 }
1117                 /* Enables FIFO */
1118                 tvp5150_write(sd, TVP5150_FIFO_OUT_CTRL, 1);
1119         } else {
1120                 /* Disables FIFO*/
1121                 tvp5150_write(sd, TVP5150_FIFO_OUT_CTRL, 0);
1122
1123                 /* Disable Full Field */
1124                 tvp5150_write(sd, TVP5150_FULL_FIELD_ENA, 0);
1125
1126                 /* Disable Line modes */
1127                 for (i = TVP5150_LINE_MODE_INI; i <= TVP5150_LINE_MODE_END; i++)
1128                         tvp5150_write(sd, i, 0xff);
1129         }
1130         return 0;
1131 }
1132
1133 static int tvp5150_g_sliced_fmt(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_format *svbi)
1134 {
1135         int i, mask = 0;
1136
1137         memset(svbi->service_lines, 0, sizeof(svbi->service_lines));
1138
1139         for (i = 0; i <= 23; i++) {
1140                 svbi->service_lines[0][i] =
1141                         tvp5150_get_vbi(sd, vbi_ram_default, i);
1142                 mask |= svbi->service_lines[0][i];
1143         }
1144         svbi->service_set = mask;
1145         return 0;
1146 }
1147
1148 #ifdef CONFIG_VIDEO_ADV_DEBUG
1149 static int tvp5150_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg)
1150 {
1151         int res;
1152
1153         res = tvp5150_read(sd, reg->reg & 0xff);
1154         if (res < 0) {
1155                 dev_err(sd->dev, "%s: failed with error = %d\n", __func__, res);
1156                 return res;
1157         }
1158
1159         reg->val = res;
1160         reg->size = 1;
1161         return 0;
1162 }
1163
1164 static int tvp5150_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_register *reg)
1165 {
1166         return tvp5150_write(sd, reg->reg & 0xff, reg->val & 0xff);
1167 }
1168 #endif
1169
1170 static int tvp5150_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
1171 {
1172         int status = tvp5150_read(sd, 0x88);
1173
1174         vt->signal = ((status & 0x04) && (status & 0x02)) ? 0xffff : 0x0;
1175         return 0;
1176 }
1177
1178 static int tvp5150_registered(struct v4l2_subdev *sd)
1179 {
1180 #ifdef CONFIG_MEDIA_CONTROLLER
1181         struct tvp5150 *decoder = to_tvp5150(sd);
1182         int ret = 0;
1183         int i;
1184
1185         for (i = 0; i < TVP5150_INPUT_NUM; i++) {
1186                 struct media_entity *input = &decoder->input_ent[i];
1187                 struct media_pad *pad = &decoder->input_pad[i];
1188
1189                 if (!input->name)
1190                         continue;
1191
1192                 decoder->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
1193
1194                 ret = media_entity_pads_init(input, 1, pad);
1195                 if (ret < 0)
1196                         return ret;
1197
1198                 ret = media_device_register_entity(sd->v4l2_dev->mdev, input);
1199                 if (ret < 0)
1200                         return ret;
1201
1202                 ret = media_create_pad_link(input, 0, &sd->entity,
1203                                             DEMOD_PAD_IF_INPUT, 0);
1204                 if (ret < 0) {
1205                         media_device_unregister_entity(input);
1206                         return ret;
1207                 }
1208         }
1209 #endif
1210
1211         return 0;
1212 }
1213
1214 /* ----------------------------------------------------------------------- */
1215
1216 static const struct v4l2_ctrl_ops tvp5150_ctrl_ops = {
1217         .s_ctrl = tvp5150_s_ctrl,
1218 };
1219
1220 static const struct v4l2_subdev_core_ops tvp5150_core_ops = {
1221         .log_status = tvp5150_log_status,
1222         .reset = tvp5150_reset,
1223 #ifdef CONFIG_VIDEO_ADV_DEBUG
1224         .g_register = tvp5150_g_register,
1225         .s_register = tvp5150_s_register,
1226 #endif
1227 };
1228
1229 static const struct v4l2_subdev_tuner_ops tvp5150_tuner_ops = {
1230         .g_tuner = tvp5150_g_tuner,
1231 };
1232
1233 static const struct v4l2_subdev_video_ops tvp5150_video_ops = {
1234         .s_std = tvp5150_s_std,
1235         .s_stream = tvp5150_s_stream,
1236         .s_routing = tvp5150_s_routing,
1237         .g_mbus_config = tvp5150_g_mbus_config,
1238 };
1239
1240 static const struct v4l2_subdev_vbi_ops tvp5150_vbi_ops = {
1241         .g_sliced_vbi_cap = tvp5150_g_sliced_vbi_cap,
1242         .g_sliced_fmt = tvp5150_g_sliced_fmt,
1243         .s_sliced_fmt = tvp5150_s_sliced_fmt,
1244         .s_raw_fmt = tvp5150_s_raw_fmt,
1245 };
1246
1247 static const struct v4l2_subdev_pad_ops tvp5150_pad_ops = {
1248         .enum_mbus_code = tvp5150_enum_mbus_code,
1249         .enum_frame_size = tvp5150_enum_frame_size,
1250         .set_fmt = tvp5150_fill_fmt,
1251         .get_fmt = tvp5150_fill_fmt,
1252         .get_selection = tvp5150_get_selection,
1253         .set_selection = tvp5150_set_selection,
1254 };
1255
1256 static const struct v4l2_subdev_ops tvp5150_ops = {
1257         .core = &tvp5150_core_ops,
1258         .tuner = &tvp5150_tuner_ops,
1259         .video = &tvp5150_video_ops,
1260         .vbi = &tvp5150_vbi_ops,
1261         .pad = &tvp5150_pad_ops,
1262 };
1263
1264 static const struct v4l2_subdev_internal_ops tvp5150_internal_ops = {
1265         .registered = tvp5150_registered,
1266 };
1267
1268
1269 /****************************************************************************
1270                         I2C Client & Driver
1271  ****************************************************************************/
1272
1273 static int tvp5150_detect_version(struct tvp5150 *core)
1274 {
1275         struct v4l2_subdev *sd = &core->sd;
1276         struct i2c_client *c = v4l2_get_subdevdata(sd);
1277         unsigned int i;
1278         u8 regs[4];
1279         int res;
1280
1281         /*
1282          * Read consequent registers - TVP5150_MSB_DEV_ID, TVP5150_LSB_DEV_ID,
1283          * TVP5150_ROM_MAJOR_VER, TVP5150_ROM_MINOR_VER
1284          */
1285         for (i = 0; i < 4; i++) {
1286                 res = tvp5150_read(sd, TVP5150_MSB_DEV_ID + i);
1287                 if (res < 0)
1288                         return res;
1289                 regs[i] = res;
1290         }
1291
1292         core->dev_id = (regs[0] << 8) | regs[1];
1293         core->rom_ver = (regs[2] << 8) | regs[3];
1294
1295         dev_info(sd->dev, "tvp%04x (%u.%u) chip found @ 0x%02x (%s)\n",
1296                   core->dev_id, regs[2], regs[3], c->addr << 1,
1297                   c->adapter->name);
1298
1299         if (core->dev_id == 0x5150 && core->rom_ver == 0x0321) {
1300                 dev_info(sd->dev, "tvp5150a detected.\n");
1301         } else if (core->dev_id == 0x5150 && core->rom_ver == 0x0400) {
1302                 dev_info(sd->dev, "tvp5150am1 detected.\n");
1303
1304                 /* ITU-T BT.656.4 timing */
1305                 tvp5150_write(sd, TVP5150_REV_SELECT, 0);
1306         } else if (core->dev_id == 0x5151 && core->rom_ver == 0x0100) {
1307                 dev_info(sd->dev, "tvp5151 detected.\n");
1308         } else {
1309                 dev_info(sd->dev, "*** unknown tvp%04x chip detected.\n",
1310                           core->dev_id);
1311         }
1312
1313         return 0;
1314 }
1315
1316 static int tvp5150_init(struct i2c_client *c)
1317 {
1318         struct gpio_desc *pdn_gpio;
1319         struct gpio_desc *reset_gpio;
1320
1321         pdn_gpio = devm_gpiod_get_optional(&c->dev, "pdn", GPIOD_OUT_HIGH);
1322         if (IS_ERR(pdn_gpio))
1323                 return PTR_ERR(pdn_gpio);
1324
1325         if (pdn_gpio) {
1326                 gpiod_set_value_cansleep(pdn_gpio, 0);
1327                 /* Delay time between power supplies active and reset */
1328                 msleep(20);
1329         }
1330
1331         reset_gpio = devm_gpiod_get_optional(&c->dev, "reset", GPIOD_OUT_HIGH);
1332         if (IS_ERR(reset_gpio))
1333                 return PTR_ERR(reset_gpio);
1334
1335         if (reset_gpio) {
1336                 /* RESETB pulse duration */
1337                 ndelay(500);
1338                 gpiod_set_value_cansleep(reset_gpio, 0);
1339                 /* Delay time between end of reset to I2C active */
1340                 usleep_range(200, 250);
1341         }
1342
1343         return 0;
1344 }
1345
1346 static int tvp5150_parse_dt(struct tvp5150 *decoder, struct device_node *np)
1347 {
1348         struct v4l2_of_endpoint bus_cfg;
1349         struct device_node *ep;
1350 #ifdef CONFIG_MEDIA_CONTROLLER
1351         struct device_node *connectors, *child;
1352         struct media_entity *input;
1353         const char *name;
1354         u32 input_type;
1355 #endif
1356         unsigned int flags;
1357         int ret = 0;
1358
1359         ep = of_graph_get_next_endpoint(np, NULL);
1360         if (!ep)
1361                 return -EINVAL;
1362
1363         ret = v4l2_of_parse_endpoint(ep, &bus_cfg);
1364         if (ret)
1365                 goto err;
1366
1367         flags = bus_cfg.bus.parallel.flags;
1368
1369         if (bus_cfg.bus_type == V4L2_MBUS_PARALLEL &&
1370             !(flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH &&
1371               flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH &&
1372               flags & V4L2_MBUS_FIELD_EVEN_LOW)) {
1373                 ret = -EINVAL;
1374                 goto err;
1375         }
1376
1377         decoder->mbus_type = bus_cfg.bus_type;
1378
1379 #ifdef CONFIG_MEDIA_CONTROLLER
1380         connectors = of_get_child_by_name(np, "connectors");
1381
1382         if (!connectors)
1383                 goto err;
1384
1385         for_each_available_child_of_node(connectors, child) {
1386                 ret = of_property_read_u32(child, "input", &input_type);
1387                 if (ret) {
1388                         dev_err(decoder->sd.dev,
1389                                  "missing type property in node %s\n",
1390                                  child->name);
1391                         goto err_connector;
1392                 }
1393
1394                 if (input_type >= TVP5150_INPUT_NUM) {
1395                         ret = -EINVAL;
1396                         goto err_connector;
1397                 }
1398
1399                 input = &decoder->input_ent[input_type];
1400
1401                 /* Each input connector can only be defined once */
1402                 if (input->name) {
1403                         dev_err(decoder->sd.dev,
1404                                  "input %s with same type already exists\n",
1405                                  input->name);
1406                         ret = -EINVAL;
1407                         goto err_connector;
1408                 }
1409
1410                 switch (input_type) {
1411                 case TVP5150_COMPOSITE0:
1412                 case TVP5150_COMPOSITE1:
1413                         input->function = MEDIA_ENT_F_CONN_COMPOSITE;
1414                         break;
1415                 case TVP5150_SVIDEO:
1416                         input->function = MEDIA_ENT_F_CONN_SVIDEO;
1417                         break;
1418                 }
1419
1420                 input->flags = MEDIA_ENT_FL_CONNECTOR;
1421
1422                 ret = of_property_read_string(child, "label", &name);
1423                 if (ret < 0) {
1424                         dev_err(decoder->sd.dev,
1425                                  "missing label property in node %s\n",
1426                                  child->name);
1427                         goto err_connector;
1428                 }
1429
1430                 input->name = name;
1431         }
1432
1433 err_connector:
1434         of_node_put(connectors);
1435 #endif
1436 err:
1437         of_node_put(ep);
1438         return ret;
1439 }
1440
1441 static const char * const tvp5150_test_patterns[2] = {
1442         "Disabled",
1443         "Black screen"
1444 };
1445
1446 static int tvp5150_probe(struct i2c_client *c,
1447                          const struct i2c_device_id *id)
1448 {
1449         struct tvp5150 *core;
1450         struct v4l2_subdev *sd;
1451         struct device_node *np = c->dev.of_node;
1452         int res;
1453
1454         /* Check if the adapter supports the needed features */
1455         if (!i2c_check_functionality(c->adapter,
1456              I2C_FUNC_SMBUS_READ_BYTE | I2C_FUNC_SMBUS_WRITE_BYTE_DATA))
1457                 return -EIO;
1458
1459         res = tvp5150_init(c);
1460         if (res)
1461                 return res;
1462
1463         core = devm_kzalloc(&c->dev, sizeof(*core), GFP_KERNEL);
1464         if (!core)
1465                 return -ENOMEM;
1466
1467         sd = &core->sd;
1468
1469         if (IS_ENABLED(CONFIG_OF) && np) {
1470                 res = tvp5150_parse_dt(core, np);
1471                 if (res) {
1472                         dev_err(sd->dev, "DT parsing error: %d\n", res);
1473                         return res;
1474                 }
1475         } else {
1476                 /* Default to BT.656 embedded sync */
1477                 core->mbus_type = V4L2_MBUS_BT656;
1478         }
1479
1480         v4l2_i2c_subdev_init(sd, c, &tvp5150_ops);
1481         sd->internal_ops = &tvp5150_internal_ops;
1482         sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
1483
1484 #if defined(CONFIG_MEDIA_CONTROLLER)
1485         core->pads[DEMOD_PAD_IF_INPUT].flags = MEDIA_PAD_FL_SINK;
1486         core->pads[DEMOD_PAD_VID_OUT].flags = MEDIA_PAD_FL_SOURCE;
1487         core->pads[DEMOD_PAD_VBI_OUT].flags = MEDIA_PAD_FL_SOURCE;
1488
1489         sd->entity.function = MEDIA_ENT_F_ATV_DECODER;
1490
1491         res = media_entity_pads_init(&sd->entity, DEMOD_NUM_PADS, core->pads);
1492         if (res < 0)
1493                 return res;
1494
1495         sd->entity.ops = &tvp5150_sd_media_ops;
1496 #endif
1497
1498         res = tvp5150_detect_version(core);
1499         if (res < 0)
1500                 return res;
1501
1502         core->norm = V4L2_STD_ALL;      /* Default is autodetect */
1503         core->input = TVP5150_COMPOSITE1;
1504         core->enable = true;
1505
1506         v4l2_ctrl_handler_init(&core->hdl, 5);
1507         v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
1508                         V4L2_CID_BRIGHTNESS, 0, 255, 1, 128);
1509         v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
1510                         V4L2_CID_CONTRAST, 0, 255, 1, 128);
1511         v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
1512                         V4L2_CID_SATURATION, 0, 255, 1, 128);
1513         v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
1514                         V4L2_CID_HUE, -128, 127, 1, 0);
1515         v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
1516                         V4L2_CID_PIXEL_RATE, 27000000,
1517                         27000000, 1, 27000000);
1518         v4l2_ctrl_new_std_menu_items(&core->hdl, &tvp5150_ctrl_ops,
1519                                      V4L2_CID_TEST_PATTERN,
1520                                      ARRAY_SIZE(tvp5150_test_patterns),
1521                                      0, 0, tvp5150_test_patterns);
1522         sd->ctrl_handler = &core->hdl;
1523         if (core->hdl.error) {
1524                 res = core->hdl.error;
1525                 goto err;
1526         }
1527         v4l2_ctrl_handler_setup(&core->hdl);
1528
1529         /* Default is no cropping */
1530         core->rect.top = 0;
1531         if (tvp5150_read_std(sd) & V4L2_STD_525_60)
1532                 core->rect.height = TVP5150_V_MAX_525_60;
1533         else
1534                 core->rect.height = TVP5150_V_MAX_OTHERS;
1535         core->rect.left = 0;
1536         core->rect.width = TVP5150_H_MAX;
1537
1538         res = v4l2_async_register_subdev(sd);
1539         if (res < 0)
1540                 goto err;
1541
1542         if (debug > 1)
1543                 tvp5150_log_status(sd);
1544         return 0;
1545
1546 err:
1547         v4l2_ctrl_handler_free(&core->hdl);
1548         return res;
1549 }
1550
1551 static int tvp5150_remove(struct i2c_client *c)
1552 {
1553         struct v4l2_subdev *sd = i2c_get_clientdata(c);
1554         struct tvp5150 *decoder = to_tvp5150(sd);
1555
1556         dev_dbg_lvl(sd->dev, 1, debug,
1557                 "tvp5150.c: removing tvp5150 adapter on address 0x%x\n",
1558                 c->addr << 1);
1559
1560         v4l2_async_unregister_subdev(sd);
1561         v4l2_ctrl_handler_free(&decoder->hdl);
1562         return 0;
1563 }
1564
1565 /* ----------------------------------------------------------------------- */
1566
1567 static const struct i2c_device_id tvp5150_id[] = {
1568         { "tvp5150", 0 },
1569         { }
1570 };
1571 MODULE_DEVICE_TABLE(i2c, tvp5150_id);
1572
1573 #if IS_ENABLED(CONFIG_OF)
1574 static const struct of_device_id tvp5150_of_match[] = {
1575         { .compatible = "ti,tvp5150", },
1576         { /* sentinel */ },
1577 };
1578 MODULE_DEVICE_TABLE(of, tvp5150_of_match);
1579 #endif
1580
1581 static struct i2c_driver tvp5150_driver = {
1582         .driver = {
1583                 .of_match_table = of_match_ptr(tvp5150_of_match),
1584                 .name   = "tvp5150",
1585         },
1586         .probe          = tvp5150_probe,
1587         .remove         = tvp5150_remove,
1588         .id_table       = tvp5150_id,
1589 };
1590
1591 module_i2c_driver(tvp5150_driver);