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 <linux/of_graph.h>
  16 #include <media/v4l2-async.h>
  17 #include <media/v4l2-device.h>
  18 #include <media/v4l2-ctrls.h>
  19 #include <media/v4l2-fwnode.h>
  20 #include <media/v4l2-mc.h>
  21
  22 #include "tvp5150_reg.h"
  23
  24 #define TVP5150_H_MAX           720U
  25 #define TVP5150_V_MAX_525_60    480U
  26 #define TVP5150_V_MAX_OTHERS    576U
  27 #define TVP5150_MAX_CROP_LEFT   511
  28 #define TVP5150_MAX_CROP_TOP    127
  29 #define TVP5150_CROP_SHIFT      2
  30
  31 MODULE_DESCRIPTION("Texas Instruments TVP5150A/TVP5150AM1/TVP5151 video decoder driver");
  32 MODULE_AUTHOR("Mauro Carvalho Chehab");
  33 MODULE_LICENSE("GPL");
  34
  35
  36 static int debug;
  37 module_param(debug, int, 0644);
  38 MODULE_PARM_DESC(debug, "Debug level (0-2)");
  39
  40 #define dprintk0(__dev, __arg...) dev_dbg_lvl(__dev, 0, 0, __arg)
  41
  42 struct tvp5150 {
  43         struct v4l2_subdev sd;
  44 #ifdef CONFIG_MEDIA_CONTROLLER
  45         struct media_pad pads[DEMOD_NUM_PADS];
  46         struct media_entity input_ent[TVP5150_INPUT_NUM];
  47         struct media_pad input_pad[TVP5150_INPUT_NUM];
  48 #endif
  49         struct v4l2_ctrl_handler hdl;
  50         struct v4l2_rect rect;
  51
  52         v4l2_std_id norm;       /* Current set standard */
  53         u32 input;
  54         u32 output;
  55         int enable;
  56
  57         u16 dev_id;
  58         u16 rom_ver;
  59
  60         enum v4l2_mbus_type mbus_type;
  61 };
  62
  63 static inline struct tvp5150 *to_tvp5150(struct v4l2_subdev *sd)
  64 {
  65         return container_of(sd, struct tvp5150, sd);
  66 }
  67
  68 static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
  69 {
  70         return &container_of(ctrl->handler, struct tvp5150, hdl)->sd;
  71 }
  72
  73 static int tvp5150_read(struct v4l2_subdev *sd, unsigned char addr)
  74 {
  75         struct i2c_client *c = v4l2_get_subdevdata(sd);
  76         int rc;
  77
  78         rc = i2c_smbus_read_byte_data(c, addr);
  79         if (rc < 0) {
  80                 dev_err(sd->dev, "i2c i/o error: rc == %d\n", rc);
  81                 return rc;
  82         }
  83
  84         dev_dbg_lvl(sd->dev, 2, debug, "tvp5150: read 0x%02x = %02x\n", addr, rc);
  85
  86         return rc;
  87 }
  88
  89 static int tvp5150_write(struct v4l2_subdev *sd, unsigned char addr,
  90                                  unsigned char value)
  91 {
  92         struct i2c_client *c = v4l2_get_subdevdata(sd);
  93         int rc;
  94
  95         dev_dbg_lvl(sd->dev, 2, debug, "tvp5150: writing %02x %02x\n", addr, value);
  96         rc = i2c_smbus_write_byte_data(c, addr, value);
  97         if (rc < 0)
  98                 dev_err(sd->dev, "i2c i/o error: rc == %d\n", rc);
  99
 100         return rc;
 101 }
 102
 103 static void dump_reg_range(struct v4l2_subdev *sd, char *s, u8 init,
 104                                 const u8 end, int max_line)
 105 {
 106         u8 buf[16];
 107         int i = 0, j, len;
 108
 109         if (max_line > 16) {
 110                 dprintk0(sd->dev, "too much data to dump\n");
 111                 return;
 112         }
 113
 114         for (i = init; i < end; i += max_line) {
 115                 len = (end - i > max_line) ? max_line : end - i;
 116
 117                 for (j = 0; j < len; j++)
 118                         buf[j] = tvp5150_read(sd, i + j);
 119
 120                 dprintk0(sd->dev, "%s reg %02x = %*ph\n", s, i, len, buf);
 121         }
 122 }
 123
 124 static int tvp5150_log_status(struct v4l2_subdev *sd)
 125 {
 126         dprintk0(sd->dev, "tvp5150: Video input source selection #1 = 0x%02x\n",
 127                 tvp5150_read(sd, TVP5150_VD_IN_SRC_SEL_1));
 128         dprintk0(sd->dev, "tvp5150: Analog channel controls = 0x%02x\n",
 129                 tvp5150_read(sd, TVP5150_ANAL_CHL_CTL));
 130         dprintk0(sd->dev, "tvp5150: Operation mode controls = 0x%02x\n",
 131                 tvp5150_read(sd, TVP5150_OP_MODE_CTL));
 132         dprintk0(sd->dev, "tvp5150: Miscellaneous controls = 0x%02x\n",
 133                 tvp5150_read(sd, TVP5150_MISC_CTL));
 134         dprintk0(sd->dev, "tvp5150: Autoswitch mask= 0x%02x\n",
 135                 tvp5150_read(sd, TVP5150_AUTOSW_MSK));
 136         dprintk0(sd->dev, "tvp5150: Color killer threshold control = 0x%02x\n",
 137                 tvp5150_read(sd, TVP5150_COLOR_KIL_THSH_CTL));
 138         dprintk0(sd->dev, "tvp5150: Luminance processing controls #1 #2 and #3 = %02x %02x %02x\n",
 139                 tvp5150_read(sd, TVP5150_LUMA_PROC_CTL_1),
 140                 tvp5150_read(sd, TVP5150_LUMA_PROC_CTL_2),
 141                 tvp5150_read(sd, TVP5150_LUMA_PROC_CTL_3));
 142         dprintk0(sd->dev, "tvp5150: Brightness control = 0x%02x\n",
 143                 tvp5150_read(sd, TVP5150_BRIGHT_CTL));
 144         dprintk0(sd->dev, "tvp5150: Color saturation control = 0x%02x\n",
 145                 tvp5150_read(sd, TVP5150_SATURATION_CTL));
 146         dprintk0(sd->dev, "tvp5150: Hue control = 0x%02x\n",
 147                 tvp5150_read(sd, TVP5150_HUE_CTL));
 148         dprintk0(sd->dev, "tvp5150: Contrast control = 0x%02x\n",
 149                 tvp5150_read(sd, TVP5150_CONTRAST_CTL));
 150         dprintk0(sd->dev, "tvp5150: Outputs and data rates select = 0x%02x\n",
 151                 tvp5150_read(sd, TVP5150_DATA_RATE_SEL));
 152         dprintk0(sd->dev, "tvp5150: Configuration shared pins = 0x%02x\n",
 153                 tvp5150_read(sd, TVP5150_CONF_SHARED_PIN));
 154         dprintk0(sd->dev, "tvp5150: Active video cropping start = 0x%02x%02x\n",
 155                 tvp5150_read(sd, TVP5150_ACT_VD_CROP_ST_MSB),
 156                 tvp5150_read(sd, TVP5150_ACT_VD_CROP_ST_LSB));
 157         dprintk0(sd->dev, "tvp5150: Active video cropping stop  = 0x%02x%02x\n",
 158                 tvp5150_read(sd, TVP5150_ACT_VD_CROP_STP_MSB),
 159                 tvp5150_read(sd, TVP5150_ACT_VD_CROP_STP_LSB));
 160         dprintk0(sd->dev, "tvp5150: Genlock/RTC = 0x%02x\n",
 161                 tvp5150_read(sd, TVP5150_GENLOCK));
 162         dprintk0(sd->dev, "tvp5150: Horizontal sync start = 0x%02x\n",
 163                 tvp5150_read(sd, TVP5150_HORIZ_SYNC_START));
 164         dprintk0(sd->dev, "tvp5150: Vertical blanking start = 0x%02x\n",
 165                 tvp5150_read(sd, TVP5150_VERT_BLANKING_START));
 166         dprintk0(sd->dev, "tvp5150: Vertical blanking stop = 0x%02x\n",
 167                 tvp5150_read(sd, TVP5150_VERT_BLANKING_STOP));
 168         dprintk0(sd->dev, "tvp5150: Chrominance processing control #1 and #2 = %02x %02x\n",
 169                 tvp5150_read(sd, TVP5150_CHROMA_PROC_CTL_1),
 170                 tvp5150_read(sd, TVP5150_CHROMA_PROC_CTL_2));
 171         dprintk0(sd->dev, "tvp5150: Interrupt reset register B = 0x%02x\n",
 172                 tvp5150_read(sd, TVP5150_INT_RESET_REG_B));
 173         dprintk0(sd->dev, "tvp5150: Interrupt enable register B = 0x%02x\n",
 174                 tvp5150_read(sd, TVP5150_INT_ENABLE_REG_B));
 175         dprintk0(sd->dev, "tvp5150: Interrupt configuration register B = 0x%02x\n",
 176                 tvp5150_read(sd, TVP5150_INTT_CONFIG_REG_B));
 177         dprintk0(sd->dev, "tvp5150: Video standard = 0x%02x\n",
 178                 tvp5150_read(sd, TVP5150_VIDEO_STD));
 179         dprintk0(sd->dev, "tvp5150: Chroma gain factor: Cb=0x%02x Cr=0x%02x\n",
 180                 tvp5150_read(sd, TVP5150_CB_GAIN_FACT),
 181                 tvp5150_read(sd, TVP5150_CR_GAIN_FACTOR));
 182         dprintk0(sd->dev, "tvp5150: Macrovision on counter = 0x%02x\n",
 183                 tvp5150_read(sd, TVP5150_MACROVISION_ON_CTR));
 184         dprintk0(sd->dev, "tvp5150: Macrovision off counter = 0x%02x\n",
 185                 tvp5150_read(sd, TVP5150_MACROVISION_OFF_CTR));
 186         dprintk0(sd->dev, "tvp5150: ITU-R BT.656.%d timing(TVP5150AM1 only)\n",
 187                 (tvp5150_read(sd, TVP5150_REV_SELECT) & 1) ? 3 : 4);
 188         dprintk0(sd->dev, "tvp5150: Device ID = %02x%02x\n",
 189                 tvp5150_read(sd, TVP5150_MSB_DEV_ID),
 190                 tvp5150_read(sd, TVP5150_LSB_DEV_ID));
 191         dprintk0(sd->dev, "tvp5150: ROM version = (hex) %02x.%02x\n",
 192                 tvp5150_read(sd, TVP5150_ROM_MAJOR_VER),
 193                 tvp5150_read(sd, TVP5150_ROM_MINOR_VER));
 194         dprintk0(sd->dev, "tvp5150: Vertical line count = 0x%02x%02x\n",
 195                 tvp5150_read(sd, TVP5150_VERT_LN_COUNT_MSB),
 196                 tvp5150_read(sd, TVP5150_VERT_LN_COUNT_LSB));
 197         dprintk0(sd->dev, "tvp5150: Interrupt status register B = 0x%02x\n",
 198                 tvp5150_read(sd, TVP5150_INT_STATUS_REG_B));
 199         dprintk0(sd->dev, "tvp5150: Interrupt active register B = 0x%02x\n",
 200                 tvp5150_read(sd, TVP5150_INT_ACTIVE_REG_B));
 201         dprintk0(sd->dev, "tvp5150: Status regs #1 to #5 = %02x %02x %02x %02x %02x\n",
 202                 tvp5150_read(sd, TVP5150_STATUS_REG_1),
 203                 tvp5150_read(sd, TVP5150_STATUS_REG_2),
 204                 tvp5150_read(sd, TVP5150_STATUS_REG_3),
 205                 tvp5150_read(sd, TVP5150_STATUS_REG_4),
 206                 tvp5150_read(sd, TVP5150_STATUS_REG_5));
 207
 208         dump_reg_range(sd, "Teletext filter 1",   TVP5150_TELETEXT_FIL1_INI,
 209                         TVP5150_TELETEXT_FIL1_END, 8);
 210         dump_reg_range(sd, "Teletext filter 2",   TVP5150_TELETEXT_FIL2_INI,
 211                         TVP5150_TELETEXT_FIL2_END, 8);
 212
 213         dprintk0(sd->dev, "tvp5150: Teletext filter enable = 0x%02x\n",
 214                 tvp5150_read(sd, TVP5150_TELETEXT_FIL_ENA));
 215         dprintk0(sd->dev, "tvp5150: Interrupt status register A = 0x%02x\n",
 216                 tvp5150_read(sd, TVP5150_INT_STATUS_REG_A));
 217         dprintk0(sd->dev, "tvp5150: Interrupt enable register A = 0x%02x\n",
 218                 tvp5150_read(sd, TVP5150_INT_ENABLE_REG_A));
 219         dprintk0(sd->dev, "tvp5150: Interrupt configuration = 0x%02x\n",
 220                 tvp5150_read(sd, TVP5150_INT_CONF));
 221         dprintk0(sd->dev, "tvp5150: VDP status register = 0x%02x\n",
 222                 tvp5150_read(sd, TVP5150_VDP_STATUS_REG));
 223         dprintk0(sd->dev, "tvp5150: FIFO word count = 0x%02x\n",
 224                 tvp5150_read(sd, TVP5150_FIFO_WORD_COUNT));
 225         dprintk0(sd->dev, "tvp5150: FIFO interrupt threshold = 0x%02x\n",
 226                 tvp5150_read(sd, TVP5150_FIFO_INT_THRESHOLD));
 227         dprintk0(sd->dev, "tvp5150: FIFO reset = 0x%02x\n",
 228                 tvp5150_read(sd, TVP5150_FIFO_RESET));
 229         dprintk0(sd->dev, "tvp5150: Line number interrupt = 0x%02x\n",
 230                 tvp5150_read(sd, TVP5150_LINE_NUMBER_INT));
 231         dprintk0(sd->dev, "tvp5150: Pixel alignment register = 0x%02x%02x\n",
 232                 tvp5150_read(sd, TVP5150_PIX_ALIGN_REG_HIGH),
 233                 tvp5150_read(sd, TVP5150_PIX_ALIGN_REG_LOW));
 234         dprintk0(sd->dev, "tvp5150: FIFO output control = 0x%02x\n",
 235                 tvp5150_read(sd, TVP5150_FIFO_OUT_CTRL));
 236         dprintk0(sd->dev, "tvp5150: Full field enable = 0x%02x\n",
 237                 tvp5150_read(sd, TVP5150_FULL_FIELD_ENA));
 238         dprintk0(sd->dev, "tvp5150: Full field mode register = 0x%02x\n",
 239                 tvp5150_read(sd, TVP5150_FULL_FIELD_MODE_REG));
 240
 241         dump_reg_range(sd, "CC   data",   TVP5150_CC_DATA_INI,
 242                         TVP5150_CC_DATA_END, 8);
 243
 244         dump_reg_range(sd, "WSS  data",   TVP5150_WSS_DATA_INI,
 245                         TVP5150_WSS_DATA_END, 8);
 246
 247         dump_reg_range(sd, "VPS  data",   TVP5150_VPS_DATA_INI,
 248                         TVP5150_VPS_DATA_END, 8);
 249
 250         dump_reg_range(sd, "VITC data",   TVP5150_VITC_DATA_INI,
 251                         TVP5150_VITC_DATA_END, 10);
 252
 253         dump_reg_range(sd, "Line mode",   TVP5150_LINE_MODE_INI,
 254                         TVP5150_LINE_MODE_END, 8);
 255         return 0;
 256 }
 257
 258 /****************************************************************************
 259                         Basic functions
 260  ****************************************************************************/
 261
 262 static void tvp5150_selmux(struct v4l2_subdev *sd)
 263 {
 264         int opmode = 0;
 265         struct tvp5150 *decoder = to_tvp5150(sd);
 266         int input = 0;
 267         int val;
 268
 269         /* Only tvp5150am1 and tvp5151 have signal generator support */
 270         if ((decoder->dev_id == 0x5150 && decoder->rom_ver == 0x0400) ||
 271             (decoder->dev_id == 0x5151 && decoder->rom_ver == 0x0100)) {
 272                 if (!decoder->enable)
 273                         input = 8;
 274         }
 275
 276         switch (decoder->input) {
 277         case TVP5150_COMPOSITE1:
 278                 input |= 2;
 279                 /* fall through */
 280         case TVP5150_COMPOSITE0:
 281                 break;
 282         case TVP5150_SVIDEO:
 283         default:
 284                 input |= 1;
 285                 break;
 286         }
 287
 288         dev_dbg_lvl(sd->dev, 1, debug, "Selecting video route: route input=%i, output=%i => tvp5150 input=%i, opmode=%i\n",
 289                         decoder->input, decoder->output,
 290                         input, opmode);
 291
 292         tvp5150_write(sd, TVP5150_OP_MODE_CTL, opmode);
 293         tvp5150_write(sd, TVP5150_VD_IN_SRC_SEL_1, input);
 294
 295         /*
 296          * Setup the FID/GLCO/VLK/HVLK and INTREQ/GPCL/VBLK output signals. For
 297          * S-Video we output the vertical lock (VLK) signal on FID/GLCO/VLK/HVLK
 298          * and set INTREQ/GPCL/VBLK to logic 0. For composite we output the
 299          * field indicator (FID) signal on FID/GLCO/VLK/HVLK and set
 300          * INTREQ/GPCL/VBLK to logic 1.
 301          */
 302         val = tvp5150_read(sd, TVP5150_MISC_CTL);
 303         if (val < 0) {
 304                 dev_err(sd->dev, "%s: failed with error = %d\n", __func__, val);
 305                 return;
 306         }
 307
 308         if (decoder->input == TVP5150_SVIDEO)
 309                 val = (val & ~TVP5150_MISC_CTL_GPCL) | TVP5150_MISC_CTL_HVLK;
 310         else
 311                 val = (val & ~TVP5150_MISC_CTL_HVLK) | TVP5150_MISC_CTL_GPCL;
 312         tvp5150_write(sd, TVP5150_MISC_CTL, val);
 313 };
 314
 315 struct i2c_reg_value {
 316         unsigned char reg;
 317         unsigned char value;
 318 };
 319
 320 /* Default values as sugested at TVP5150AM1 datasheet */
 321 static const struct i2c_reg_value tvp5150_init_default[] = {
 322         { /* 0x00 */
 323                 TVP5150_VD_IN_SRC_SEL_1,0x00
 324         },
 325         { /* 0x01 */
 326                 TVP5150_ANAL_CHL_CTL,0x15
 327         },
 328         { /* 0x02 */
 329                 TVP5150_OP_MODE_CTL,0x00
 330         },
 331         { /* 0x03 */
 332                 TVP5150_MISC_CTL,0x01
 333         },
 334         { /* 0x06 */
 335                 TVP5150_COLOR_KIL_THSH_CTL,0x10
 336         },
 337         { /* 0x07 */
 338                 TVP5150_LUMA_PROC_CTL_1,0x60
 339         },
 340         { /* 0x08 */
 341                 TVP5150_LUMA_PROC_CTL_2,0x00
 342         },
 343         { /* 0x09 */
 344                 TVP5150_BRIGHT_CTL,0x80
 345         },
 346         { /* 0x0a */
 347                 TVP5150_SATURATION_CTL,0x80
 348         },
 349         { /* 0x0b */
 350                 TVP5150_HUE_CTL,0x00
 351         },
 352         { /* 0x0c */
 353                 TVP5150_CONTRAST_CTL,0x80
 354         },
 355         { /* 0x0d */
 356                 TVP5150_DATA_RATE_SEL,0x47
 357         },
 358         { /* 0x0e */
 359                 TVP5150_LUMA_PROC_CTL_3,0x00
 360         },
 361         { /* 0x0f */
 362                 TVP5150_CONF_SHARED_PIN,0x08
 363         },
 364         { /* 0x11 */
 365                 TVP5150_ACT_VD_CROP_ST_MSB,0x00
 366         },
 367         { /* 0x12 */
 368                 TVP5150_ACT_VD_CROP_ST_LSB,0x00
 369         },
 370         { /* 0x13 */
 371                 TVP5150_ACT_VD_CROP_STP_MSB,0x00
 372         },
 373         { /* 0x14 */
 374                 TVP5150_ACT_VD_CROP_STP_LSB,0x00
 375         },
 376         { /* 0x15 */
 377                 TVP5150_GENLOCK,0x01
 378         },
 379         { /* 0x16 */
 380                 TVP5150_HORIZ_SYNC_START,0x80
 381         },
 382         { /* 0x18 */
 383                 TVP5150_VERT_BLANKING_START,0x00
 384         },
 385         { /* 0x19 */
 386                 TVP5150_VERT_BLANKING_STOP,0x00
 387         },
 388         { /* 0x1a */
 389                 TVP5150_CHROMA_PROC_CTL_1,0x0c
 390         },
 391         { /* 0x1b */
 392                 TVP5150_CHROMA_PROC_CTL_2,0x14
 393         },
 394         { /* 0x1c */
 395                 TVP5150_INT_RESET_REG_B,0x00
 396         },
 397         { /* 0x1d */
 398                 TVP5150_INT_ENABLE_REG_B,0x00
 399         },
 400         { /* 0x1e */
 401                 TVP5150_INTT_CONFIG_REG_B,0x00
 402         },
 403         { /* 0x28 */
 404                 TVP5150_VIDEO_STD,0x00
 405         },
 406         { /* 0x2e */
 407                 TVP5150_MACROVISION_ON_CTR,0x0f
 408         },
 409         { /* 0x2f */
 410                 TVP5150_MACROVISION_OFF_CTR,0x01
 411         },
 412         { /* 0xbb */
 413                 TVP5150_TELETEXT_FIL_ENA,0x00
 414         },
 415         { /* 0xc0 */
 416                 TVP5150_INT_STATUS_REG_A,0x00
 417         },
 418         { /* 0xc1 */
 419                 TVP5150_INT_ENABLE_REG_A,0x00
 420         },
 421         { /* 0xc2 */
 422                 TVP5150_INT_CONF,0x04
 423         },
 424         { /* 0xc8 */
 425                 TVP5150_FIFO_INT_THRESHOLD,0x80
 426         },
 427         { /* 0xc9 */
 428                 TVP5150_FIFO_RESET,0x00
 429         },
 430         { /* 0xca */
 431                 TVP5150_LINE_NUMBER_INT,0x00
 432         },
 433         { /* 0xcb */
 434                 TVP5150_PIX_ALIGN_REG_LOW,0x4e
 435         },
 436         { /* 0xcc */
 437                 TVP5150_PIX_ALIGN_REG_HIGH,0x00
 438         },
 439         { /* 0xcd */
 440                 TVP5150_FIFO_OUT_CTRL,0x01
 441         },
 442         { /* 0xcf */
 443                 TVP5150_FULL_FIELD_ENA,0x00
 444         },
 445         { /* 0xd0 */
 446                 TVP5150_LINE_MODE_INI,0x00
 447         },
 448         { /* 0xfc */
 449                 TVP5150_FULL_FIELD_MODE_REG,0x7f
 450         },
 451         { /* end of data */
 452                 0xff,0xff
 453         }
 454 };
 455
 456 /* Default values as sugested at TVP5150AM1 datasheet */
 457 static const struct i2c_reg_value tvp5150_init_enable[] = {
 458         {
 459                 TVP5150_CONF_SHARED_PIN, 2
 460         },{     /* Automatic offset and AGC enabled */
 461                 TVP5150_ANAL_CHL_CTL, 0x15
 462         },{     /* Activate YCrCb output 0x9 or 0xd ? */
 463                 TVP5150_MISC_CTL, TVP5150_MISC_CTL_GPCL |
 464                                   TVP5150_MISC_CTL_INTREQ_OE |
 465                                   TVP5150_MISC_CTL_YCBCR_OE |
 466                                   TVP5150_MISC_CTL_SYNC_OE |
 467                                   TVP5150_MISC_CTL_VBLANK |
 468                                   TVP5150_MISC_CTL_CLOCK_OE,
 469         },{     /* Activates video std autodetection for all standards */
 470                 TVP5150_AUTOSW_MSK, 0x0
 471         },{     /* Default format: 0x47. For 4:2:2: 0x40 */
 472                 TVP5150_DATA_RATE_SEL, 0x47
 473         },{
 474                 TVP5150_CHROMA_PROC_CTL_1, 0x0c
 475         },{
 476                 TVP5150_CHROMA_PROC_CTL_2, 0x54
 477         },{     /* Non documented, but initialized on WinTV USB2 */
 478                 0x27, 0x20
 479         },{
 480                 0xff,0xff
 481         }
 482 };
 483
 484 struct tvp5150_vbi_type {
 485         unsigned int vbi_type;
 486         unsigned int ini_line;
 487         unsigned int end_line;
 488         unsigned int by_field :1;
 489 };
 490
 491 struct i2c_vbi_ram_value {
 492         u16 reg;
 493         struct tvp5150_vbi_type type;
 494         unsigned char values[16];
 495 };
 496
 497 /* This struct have the values for each supported VBI Standard
 498  * by
 499  tvp5150_vbi_types should follow the same order as vbi_ram_default
 500  * value 0 means rom position 0x10, value 1 means rom position 0x30
 501  * and so on. There are 16 possible locations from 0 to 15.
 502  */
 503
 504 static struct i2c_vbi_ram_value vbi_ram_default[] =
 505 {
 506         /* FIXME: Current api doesn't handle all VBI types, those not
 507            yet supported are placed under #if 0 */
 508 #if 0
 509         [0] = {0x010, /* Teletext, SECAM, WST System A */
 510                 {V4L2_SLICED_TELETEXT_SECAM,6,23,1},
 511                 { 0xaa, 0xaa, 0xff, 0xff, 0xe7, 0x2e, 0x20, 0x26,
 512                   0xe6, 0xb4, 0x0e, 0x00, 0x00, 0x00, 0x10, 0x00 }
 513         },
 514 #endif
 515         [1] = {0x030, /* Teletext, PAL, WST System B */
 516                 {V4L2_SLICED_TELETEXT_B,6,22,1},
 517                 { 0xaa, 0xaa, 0xff, 0xff, 0x27, 0x2e, 0x20, 0x2b,
 518                   0xa6, 0x72, 0x10, 0x00, 0x00, 0x00, 0x10, 0x00 }
 519         },
 520 #if 0
 521         [2] = {0x050, /* Teletext, PAL, WST System C */
 522                 {V4L2_SLICED_TELETEXT_PAL_C,6,22,1},
 523                 { 0xaa, 0xaa, 0xff, 0xff, 0xe7, 0x2e, 0x20, 0x22,
 524                   0xa6, 0x98, 0x0d, 0x00, 0x00, 0x00, 0x10, 0x00 }
 525         },
 526         [3] = {0x070, /* Teletext, NTSC, WST System B */
 527                 {V4L2_SLICED_TELETEXT_NTSC_B,10,21,1},
 528                 { 0xaa, 0xaa, 0xff, 0xff, 0x27, 0x2e, 0x20, 0x23,
 529                   0x69, 0x93, 0x0d, 0x00, 0x00, 0x00, 0x10, 0x00 }
 530         },
 531         [4] = {0x090, /* Tetetext, NTSC NABTS System C */
 532                 {V4L2_SLICED_TELETEXT_NTSC_C,10,21,1},
 533                 { 0xaa, 0xaa, 0xff, 0xff, 0xe7, 0x2e, 0x20, 0x22,
 534                   0x69, 0x93, 0x0d, 0x00, 0x00, 0x00, 0x15, 0x00 }
 535         },
 536         [5] = {0x0b0, /* Teletext, NTSC-J, NABTS System D */
 537                 {V4L2_SLICED_TELETEXT_NTSC_D,10,21,1},
 538                 { 0xaa, 0xaa, 0xff, 0xff, 0xa7, 0x2e, 0x20, 0x23,
 539                   0x69, 0x93, 0x0d, 0x00, 0x00, 0x00, 0x10, 0x00 }
 540         },
 541         [6] = {0x0d0, /* Closed Caption, PAL/SECAM */
 542                 {V4L2_SLICED_CAPTION_625,22,22,1},
 543                 { 0xaa, 0x2a, 0xff, 0x3f, 0x04, 0x51, 0x6e, 0x02,
 544                   0xa6, 0x7b, 0x09, 0x00, 0x00, 0x00, 0x27, 0x00 }
 545         },
 546 #endif
 547         [7] = {0x0f0, /* Closed Caption, NTSC */
 548                 {V4L2_SLICED_CAPTION_525,21,21,1},
 549                 { 0xaa, 0x2a, 0xff, 0x3f, 0x04, 0x51, 0x6e, 0x02,
 550                   0x69, 0x8c, 0x09, 0x00, 0x00, 0x00, 0x27, 0x00 }
 551         },
 552         [8] = {0x110, /* Wide Screen Signal, PAL/SECAM */
 553                 {V4L2_SLICED_WSS_625,23,23,1},
 554                 { 0x5b, 0x55, 0xc5, 0xff, 0x00, 0x71, 0x6e, 0x42,
 555                   0xa6, 0xcd, 0x0f, 0x00, 0x00, 0x00, 0x3a, 0x00 }
 556         },
 557 #if 0
 558         [9] = {0x130, /* Wide Screen Signal, NTSC C */
 559                 {V4L2_SLICED_WSS_525,20,20,1},
 560                 { 0x38, 0x00, 0x3f, 0x00, 0x00, 0x71, 0x6e, 0x43,
 561                   0x69, 0x7c, 0x08, 0x00, 0x00, 0x00, 0x39, 0x00 }
 562         },
 563         [10] = {0x150, /* Vertical Interval Timecode (VITC), PAL/SECAM */
 564                 {V4l2_SLICED_VITC_625,6,22,0},
 565                 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x8f, 0x6d, 0x49,
 566                   0xa6, 0x85, 0x08, 0x00, 0x00, 0x00, 0x4c, 0x00 }
 567         },
 568         [11] = {0x170, /* Vertical Interval Timecode (VITC), NTSC */
 569                 {V4l2_SLICED_VITC_525,10,20,0},
 570                 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x8f, 0x6d, 0x49,
 571                   0x69, 0x94, 0x08, 0x00, 0x00, 0x00, 0x4c, 0x00 }
 572         },
 573 #endif
 574         [12] = {0x190, /* Video Program System (VPS), PAL */
 575                 {V4L2_SLICED_VPS,16,16,0},
 576                 { 0xaa, 0xaa, 0xff, 0xff, 0xba, 0xce, 0x2b, 0x0d,
 577                   0xa6, 0xda, 0x0b, 0x00, 0x00, 0x00, 0x60, 0x00 }
 578         },
 579         /* 0x1d0 User programmable */
 580 };
 581
 582 static int tvp5150_write_inittab(struct v4l2_subdev *sd,
 583                                 const struct i2c_reg_value *regs)
 584 {
 585         while (regs->reg != 0xff) {
 586                 tvp5150_write(sd, regs->reg, regs->value);
 587                 regs++;
 588         }
 589         return 0;
 590 }
 591
 592 static int tvp5150_vdp_init(struct v4l2_subdev *sd)
 593 {
 594         unsigned int i;
 595         int j;
 596
 597         /* Disable Full Field */
 598         tvp5150_write(sd, TVP5150_FULL_FIELD_ENA, 0);
 599
 600         /* Before programming, Line mode should be at 0xff */
 601         for (i = TVP5150_LINE_MODE_INI; i <= TVP5150_LINE_MODE_END; i++)
 602                 tvp5150_write(sd, i, 0xff);
 603
 604         /* Load Ram Table */
 605         for (j = 0; j < ARRAY_SIZE(vbi_ram_default); j++) {
 606                 const struct i2c_vbi_ram_value *regs = &vbi_ram_default[j];
 607
 608                 if (!regs->type.vbi_type)
 609                         continue;
 610
 611                 tvp5150_write(sd, TVP5150_CONF_RAM_ADDR_HIGH, regs->reg >> 8);
 612                 tvp5150_write(sd, TVP5150_CONF_RAM_ADDR_LOW, regs->reg);
 613
 614                 for (i = 0; i < 16; i++)
 615                         tvp5150_write(sd, TVP5150_VDP_CONF_RAM_DATA, regs->values[i]);
 616         }
 617         return 0;
 618 }
 619
 620 /* Fills VBI capabilities based on i2c_vbi_ram_value struct */
 621 static int tvp5150_g_sliced_vbi_cap(struct v4l2_subdev *sd,
 622                                 struct v4l2_sliced_vbi_cap *cap)
 623 {
 624         int line, i;
 625
 626         dev_dbg_lvl(sd->dev, 1, debug, "g_sliced_vbi_cap\n");
 627         memset(cap, 0, sizeof *cap);
 628
 629         for (i = 0; i < ARRAY_SIZE(vbi_ram_default); i++) {
 630                 const struct i2c_vbi_ram_value *regs = &vbi_ram_default[i];
 631
 632                 if (!regs->type.vbi_type)
 633                         continue;
 634
 635                 for (line = regs->type.ini_line;
 636                      line <= regs->type.end_line;
 637                      line++) {
 638                         cap->service_lines[0][line] |= regs->type.vbi_type;
 639                 }
 640                 cap->service_set |= regs->type.vbi_type;
 641         }
 642         return 0;
 643 }
 644
 645 /* Set vbi processing
 646  * type - one of tvp5150_vbi_types
 647  * line - line to gather data
 648  * fields: bit 0 field1, bit 1, field2
 649  * flags (default=0xf0) is a bitmask, were set means:
 650  *      bit 7: enable filtering null bytes on CC
 651  *      bit 6: send data also to FIFO
 652  *      bit 5: don't allow data with errors on FIFO
 653  *      bit 4: enable ECC when possible
 654  * pix_align = pix alignment:
 655  *      LSB = field1
 656  *      MSB = field2
 657  */
 658 static int tvp5150_set_vbi(struct v4l2_subdev *sd,
 659                         unsigned int type,u8 flags, int line,
 660                         const int fields)
 661 {
 662         struct tvp5150 *decoder = to_tvp5150(sd);
 663         v4l2_std_id std = decoder->norm;
 664         u8 reg;
 665         int i, pos = 0;
 666
 667         if (std == V4L2_STD_ALL) {
 668                 dev_err(sd->dev, "VBI can't be configured without knowing number of lines\n");
 669                 return 0;
 670         } else if (std & V4L2_STD_625_50) {
 671                 /* Don't follow NTSC Line number convension */
 672                 line += 3;
 673         }
 674
 675         if (line < 6 || line > 27)
 676                 return 0;
 677
 678         for (i = 0; i < ARRAY_SIZE(vbi_ram_default); i++) {
 679                 const struct i2c_vbi_ram_value *regs =  &vbi_ram_default[i];
 680
 681                 if (!regs->type.vbi_type)
 682                         continue;
 683
 684                 if ((type & regs->type.vbi_type) &&
 685                     (line >= regs->type.ini_line) &&
 686                     (line <= regs->type.end_line))
 687                         break;
 688                 pos++;
 689         }
 690
 691         type = pos | (flags & 0xf0);
 692         reg = ((line - 6) << 1) + TVP5150_LINE_MODE_INI;
 693
 694         if (fields & 1)
 695                 tvp5150_write(sd, reg, type);
 696
 697         if (fields & 2)
 698                 tvp5150_write(sd, reg + 1, type);
 699
 700         return type;
 701 }
 702
 703 static int tvp5150_get_vbi(struct v4l2_subdev *sd, int line)
 704 {
 705         struct tvp5150 *decoder = to_tvp5150(sd);
 706         v4l2_std_id std = decoder->norm;
 707         u8 reg;
 708         int pos, type = 0;
 709         int i, ret = 0;
 710
 711         if (std == V4L2_STD_ALL) {
 712                 dev_err(sd->dev, "VBI can't be configured without knowing number of lines\n");
 713                 return 0;
 714         } else if (std & V4L2_STD_625_50) {
 715                 /* Don't follow NTSC Line number convension */
 716                 line += 3;
 717         }
 718
 719         if (line < 6 || line > 27)
 720                 return 0;
 721
 722         reg = ((line - 6) << 1) + TVP5150_LINE_MODE_INI;
 723
 724         for (i = 0; i <= 1; i++) {
 725                 ret = tvp5150_read(sd, reg + i);
 726                 if (ret < 0) {
 727                         dev_err(sd->dev, "%s: failed with error = %d\n",
 728                                  __func__, ret);
 729                         return 0;
 730                 }
 731                 pos = ret & 0x0f;
 732                 if (pos < ARRAY_SIZE(vbi_ram_default))
 733                         type |= vbi_ram_default[pos].type.vbi_type;
 734         }
 735
 736         return type;
 737 }
 738
 739 static int tvp5150_set_std(struct v4l2_subdev *sd, v4l2_std_id std)
 740 {
 741         struct tvp5150 *decoder = to_tvp5150(sd);
 742         int fmt = 0;
 743
 744         decoder->norm = std;
 745
 746         /* First tests should be against specific std */
 747
 748         if (std == V4L2_STD_NTSC_443) {
 749                 fmt = VIDEO_STD_NTSC_4_43_BIT;
 750         } else if (std == V4L2_STD_PAL_M) {
 751                 fmt = VIDEO_STD_PAL_M_BIT;
 752         } else if (std == V4L2_STD_PAL_N || std == V4L2_STD_PAL_Nc) {
 753                 fmt = VIDEO_STD_PAL_COMBINATION_N_BIT;
 754         } else {
 755                 /* Then, test against generic ones */
 756                 if (std & V4L2_STD_NTSC)
 757                         fmt = VIDEO_STD_NTSC_MJ_BIT;
 758                 else if (std & V4L2_STD_PAL)
 759                         fmt = VIDEO_STD_PAL_BDGHIN_BIT;
 760                 else if (std & V4L2_STD_SECAM)
 761                         fmt = VIDEO_STD_SECAM_BIT;
 762         }
 763
 764         dev_dbg_lvl(sd->dev, 1, debug, "Set video std register to %d.\n", fmt);
 765         tvp5150_write(sd, TVP5150_VIDEO_STD, fmt);
 766         return 0;
 767 }
 768
 769 static int tvp5150_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
 770 {
 771         struct tvp5150 *decoder = to_tvp5150(sd);
 772
 773         if (decoder->norm == std)
 774                 return 0;
 775
 776         /* Change cropping height limits */
 777         if (std & V4L2_STD_525_60)
 778                 decoder->rect.height = TVP5150_V_MAX_525_60;
 779         else
 780                 decoder->rect.height = TVP5150_V_MAX_OTHERS;
 781
 782
 783         return tvp5150_set_std(sd, std);
 784 }
 785
 786 static int tvp5150_reset(struct v4l2_subdev *sd, u32 val)
 787 {
 788         struct tvp5150 *decoder = to_tvp5150(sd);
 789
 790         /* Initializes TVP5150 to its default values */
 791         tvp5150_write_inittab(sd, tvp5150_init_default);
 792
 793         /* Initializes VDP registers */
 794         tvp5150_vdp_init(sd);
 795
 796         /* Selects decoder input */
 797         tvp5150_selmux(sd);
 798
 799         /* Initializes TVP5150 to stream enabled values */
 800         tvp5150_write_inittab(sd, tvp5150_init_enable);
 801
 802         /* Initialize image preferences */
 803         v4l2_ctrl_handler_setup(&decoder->hdl);
 804
 805         tvp5150_set_std(sd, decoder->norm);
 806
 807         if (decoder->mbus_type == V4L2_MBUS_PARALLEL)
 808                 tvp5150_write(sd, TVP5150_DATA_RATE_SEL, 0x40);
 809
 810         return 0;
 811 };
 812
 813 static int tvp5150_s_ctrl(struct v4l2_ctrl *ctrl)
 814 {
 815         struct v4l2_subdev *sd = to_sd(ctrl);
 816         struct tvp5150 *decoder = to_tvp5150(sd);
 817
 818         switch (ctrl->id) {
 819         case V4L2_CID_BRIGHTNESS:
 820                 tvp5150_write(sd, TVP5150_BRIGHT_CTL, ctrl->val);
 821                 return 0;
 822         case V4L2_CID_CONTRAST:
 823                 tvp5150_write(sd, TVP5150_CONTRAST_CTL, ctrl->val);
 824                 return 0;
 825         case V4L2_CID_SATURATION:
 826                 tvp5150_write(sd, TVP5150_SATURATION_CTL, ctrl->val);
 827                 return 0;
 828         case V4L2_CID_HUE:
 829                 tvp5150_write(sd, TVP5150_HUE_CTL, ctrl->val);
 830                 break;
 831         case V4L2_CID_TEST_PATTERN:
 832                 decoder->enable = ctrl->val ? false : true;
 833                 tvp5150_selmux(sd);
 834                 return 0;
 835         }
 836         return -EINVAL;
 837 }
 838
 839 static v4l2_std_id tvp5150_read_std(struct v4l2_subdev *sd)
 840 {
 841         int val = tvp5150_read(sd, TVP5150_STATUS_REG_5);
 842
 843         switch (val & 0x0F) {
 844         case 0x01:
 845                 return V4L2_STD_NTSC;
 846         case 0x03:
 847                 return V4L2_STD_PAL;
 848         case 0x05:
 849                 return V4L2_STD_PAL_M;
 850         case 0x07:
 851                 return V4L2_STD_PAL_N | V4L2_STD_PAL_Nc;
 852         case 0x09:
 853                 return V4L2_STD_NTSC_443;
 854         case 0xb:
 855                 return V4L2_STD_SECAM;
 856         default:
 857                 return V4L2_STD_UNKNOWN;
 858         }
 859 }
 860
 861 static int tvp5150_fill_fmt(struct v4l2_subdev *sd,
 862                 struct v4l2_subdev_pad_config *cfg,
 863                 struct v4l2_subdev_format *format)
 864 {
 865         struct v4l2_mbus_framefmt *f;
 866         struct tvp5150 *decoder = to_tvp5150(sd);
 867
 868         if (!format || (format->pad != DEMOD_PAD_VID_OUT))
 869                 return -EINVAL;
 870
 871         f = &format->format;
 872
 873         f->width = decoder->rect.width;
 874         f->height = decoder->rect.height / 2;
 875
 876         f->code = MEDIA_BUS_FMT_UYVY8_2X8;
 877         f->field = V4L2_FIELD_ALTERNATE;
 878         f->colorspace = V4L2_COLORSPACE_SMPTE170M;
 879
 880         dev_dbg_lvl(sd->dev, 1, debug, "width = %d, height = %d\n", f->width,
 881                         f->height);
 882         return 0;
 883 }
 884
 885 static int tvp5150_set_selection(struct v4l2_subdev *sd,
 886                                  struct v4l2_subdev_pad_config *cfg,
 887                                  struct v4l2_subdev_selection *sel)
 888 {
 889         struct tvp5150 *decoder = to_tvp5150(sd);
 890         struct v4l2_rect rect = sel->r;
 891         v4l2_std_id std;
 892         int hmax;
 893
 894         if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE ||
 895             sel->target != V4L2_SEL_TGT_CROP)
 896                 return -EINVAL;
 897
 898         dev_dbg_lvl(sd->dev, 1, debug, "%s left=%d, top=%d, width=%d, height=%d\n",
 899                 __func__, rect.left, rect.top, rect.width, rect.height);
 900
 901         /* tvp5150 has some special limits */
 902         rect.left = clamp(rect.left, 0, TVP5150_MAX_CROP_LEFT);
 903         rect.width = clamp_t(unsigned int, rect.width,
 904                              TVP5150_H_MAX - TVP5150_MAX_CROP_LEFT - rect.left,
 905                              TVP5150_H_MAX - rect.left);
 906         rect.top = clamp(rect.top, 0, TVP5150_MAX_CROP_TOP);
 907
 908         /* Calculate height based on current standard */
 909         if (decoder->norm == V4L2_STD_ALL)
 910                 std = tvp5150_read_std(sd);
 911         else
 912                 std = decoder->norm;
 913
 914         if (std & V4L2_STD_525_60)
 915                 hmax = TVP5150_V_MAX_525_60;
 916         else
 917                 hmax = TVP5150_V_MAX_OTHERS;
 918
 919         rect.height = clamp_t(unsigned int, rect.height,
 920                               hmax - TVP5150_MAX_CROP_TOP - rect.top,
 921                               hmax - rect.top);
 922
 923         tvp5150_write(sd, TVP5150_VERT_BLANKING_START, rect.top);
 924         tvp5150_write(sd, TVP5150_VERT_BLANKING_STOP,
 925                       rect.top + rect.height - hmax);
 926         tvp5150_write(sd, TVP5150_ACT_VD_CROP_ST_MSB,
 927                       rect.left >> TVP5150_CROP_SHIFT);
 928         tvp5150_write(sd, TVP5150_ACT_VD_CROP_ST_LSB,
 929                       rect.left | (1 << TVP5150_CROP_SHIFT));
 930         tvp5150_write(sd, TVP5150_ACT_VD_CROP_STP_MSB,
 931                       (rect.left + rect.width - TVP5150_MAX_CROP_LEFT) >>
 932                       TVP5150_CROP_SHIFT);
 933         tvp5150_write(sd, TVP5150_ACT_VD_CROP_STP_LSB,
 934                       rect.left + rect.width - TVP5150_MAX_CROP_LEFT);
 935
 936         decoder->rect = rect;
 937
 938         return 0;
 939 }
 940
 941 static int tvp5150_get_selection(struct v4l2_subdev *sd,
 942                                  struct v4l2_subdev_pad_config *cfg,
 943                                  struct v4l2_subdev_selection *sel)
 944 {
 945         struct tvp5150 *decoder = container_of(sd, struct tvp5150, sd);
 946         v4l2_std_id std;
 947
 948         if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE)
 949                 return -EINVAL;
 950
 951         switch (sel->target) {
 952         case V4L2_SEL_TGT_CROP_BOUNDS:
 953         case V4L2_SEL_TGT_CROP_DEFAULT:
 954                 sel->r.left = 0;
 955                 sel->r.top = 0;
 956                 sel->r.width = TVP5150_H_MAX;
 957
 958                 /* Calculate height based on current standard */
 959                 if (decoder->norm == V4L2_STD_ALL)
 960                         std = tvp5150_read_std(sd);
 961                 else
 962                         std = decoder->norm;
 963                 if (std & V4L2_STD_525_60)
 964                         sel->r.height = TVP5150_V_MAX_525_60;
 965                 else
 966                         sel->r.height = TVP5150_V_MAX_OTHERS;
 967                 return 0;
 968         case V4L2_SEL_TGT_CROP:
 969                 sel->r = decoder->rect;
 970                 return 0;
 971         default:
 972                 return -EINVAL;
 973         }
 974 }
 975
 976 static int tvp5150_g_mbus_config(struct v4l2_subdev *sd,
 977                                  struct v4l2_mbus_config *cfg)
 978 {
 979         struct tvp5150 *decoder = to_tvp5150(sd);
 980
 981         cfg->type = decoder->mbus_type;
 982         cfg->flags = V4L2_MBUS_MASTER | V4L2_MBUS_PCLK_SAMPLE_RISING
 983                    | V4L2_MBUS_FIELD_EVEN_LOW | V4L2_MBUS_DATA_ACTIVE_HIGH;
 984
 985         return 0;
 986 }
 987
 988 /****************************************************************************
 989                         V4L2 subdev pad ops
 990  ****************************************************************************/
 991 static int tvp5150_enum_mbus_code(struct v4l2_subdev *sd,
 992                 struct v4l2_subdev_pad_config *cfg,
 993                 struct v4l2_subdev_mbus_code_enum *code)
 994 {
 995         if (code->pad || code->index)
 996                 return -EINVAL;
 997
 998         code->code = MEDIA_BUS_FMT_UYVY8_2X8;
 999         return 0;
1000 }
1001
1002 static int tvp5150_enum_frame_size(struct v4l2_subdev *sd,
1003                                    struct v4l2_subdev_pad_config *cfg,
1004                                    struct v4l2_subdev_frame_size_enum *fse)
1005 {
1006         struct tvp5150 *decoder = to_tvp5150(sd);
1007
1008         if (fse->index >= 8 || fse->code != MEDIA_BUS_FMT_UYVY8_2X8)
1009                 return -EINVAL;
1010
1011         fse->code = MEDIA_BUS_FMT_UYVY8_2X8;
1012         fse->min_width = decoder->rect.width;
1013         fse->max_width = decoder->rect.width;
1014         fse->min_height = decoder->rect.height / 2;
1015         fse->max_height = decoder->rect.height / 2;
1016
1017         return 0;
1018 }
1019
1020 /****************************************************************************
1021                         Media entity ops
1022  ****************************************************************************/
1023
1024 #ifdef CONFIG_MEDIA_CONTROLLER
1025 static int tvp5150_link_setup(struct media_entity *entity,
1026                               const struct media_pad *local,
1027                               const struct media_pad *remote, u32 flags)
1028 {
1029         struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity);
1030         struct tvp5150 *decoder = to_tvp5150(sd);
1031         int i;
1032
1033         for (i = 0; i < TVP5150_INPUT_NUM; i++) {
1034                 if (remote->entity == &decoder->input_ent[i])
1035                         break;
1036         }
1037
1038         /* Do nothing for entities that are not input connectors */
1039         if (i == TVP5150_INPUT_NUM)
1040                 return 0;
1041
1042         decoder->input = i;
1043
1044         tvp5150_selmux(sd);
1045
1046         return 0;
1047 }
1048
1049 static const struct media_entity_operations tvp5150_sd_media_ops = {
1050         .link_setup = tvp5150_link_setup,
1051 };
1052 #endif
1053
1054 /****************************************************************************
1055                         I2C Command
1056  ****************************************************************************/
1057
1058 static int tvp5150_s_stream(struct v4l2_subdev *sd, int enable)
1059 {
1060         struct tvp5150 *decoder = to_tvp5150(sd);
1061         int val;
1062
1063         /* Enable or disable the video output signals. */
1064         val = tvp5150_read(sd, TVP5150_MISC_CTL);
1065         if (val < 0)
1066                 return val;
1067
1068         val &= ~(TVP5150_MISC_CTL_YCBCR_OE | TVP5150_MISC_CTL_SYNC_OE |
1069                  TVP5150_MISC_CTL_CLOCK_OE);
1070
1071         if (enable) {
1072                 /*
1073                  * Enable the YCbCr and clock outputs. In discrete sync mode
1074                  * (non-BT.656) additionally enable the the sync outputs.
1075                  */
1076                 val |= TVP5150_MISC_CTL_YCBCR_OE | TVP5150_MISC_CTL_CLOCK_OE;
1077                 if (decoder->mbus_type == V4L2_MBUS_PARALLEL)
1078                         val |= TVP5150_MISC_CTL_SYNC_OE;
1079         }
1080
1081         tvp5150_write(sd, TVP5150_MISC_CTL, val);
1082
1083         return 0;
1084 }
1085
1086 static int tvp5150_s_routing(struct v4l2_subdev *sd,
1087                              u32 input, u32 output, u32 config)
1088 {
1089         struct tvp5150 *decoder = to_tvp5150(sd);
1090
1091         decoder->input = input;
1092         decoder->output = output;
1093
1094         if (output == TVP5150_BLACK_SCREEN)
1095                 decoder->enable = false;
1096         else
1097                 decoder->enable = true;
1098
1099         tvp5150_selmux(sd);
1100         return 0;
1101 }
1102
1103 static int tvp5150_s_raw_fmt(struct v4l2_subdev *sd, struct v4l2_vbi_format *fmt)
1104 {
1105         /* this is for capturing 36 raw vbi lines
1106            if there's a way to cut off the beginning 2 vbi lines
1107            with the tvp5150 then the vbi line count could be lowered
1108            to 17 lines/field again, although I couldn't find a register
1109            which could do that cropping */
1110         if (fmt->sample_format == V4L2_PIX_FMT_GREY)
1111                 tvp5150_write(sd, TVP5150_LUMA_PROC_CTL_1, 0x70);
1112         if (fmt->count[0] == 18 && fmt->count[1] == 18) {
1113                 tvp5150_write(sd, TVP5150_VERT_BLANKING_START, 0x00);
1114                 tvp5150_write(sd, TVP5150_VERT_BLANKING_STOP, 0x01);
1115         }
1116         return 0;
1117 }
1118
1119 static int tvp5150_s_sliced_fmt(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_format *svbi)
1120 {
1121         int i;
1122
1123         if (svbi->service_set != 0) {
1124                 for (i = 0; i <= 23; i++) {
1125                         svbi->service_lines[1][i] = 0;
1126                         svbi->service_lines[0][i] =
1127                                 tvp5150_set_vbi(sd, svbi->service_lines[0][i],
1128                                                 0xf0, i, 3);
1129                 }
1130                 /* Enables FIFO */
1131                 tvp5150_write(sd, TVP5150_FIFO_OUT_CTRL, 1);
1132         } else {
1133                 /* Disables FIFO*/
1134                 tvp5150_write(sd, TVP5150_FIFO_OUT_CTRL, 0);
1135
1136                 /* Disable Full Field */
1137                 tvp5150_write(sd, TVP5150_FULL_FIELD_ENA, 0);
1138
1139                 /* Disable Line modes */
1140                 for (i = TVP5150_LINE_MODE_INI; i <= TVP5150_LINE_MODE_END; i++)
1141                         tvp5150_write(sd, i, 0xff);
1142         }
1143         return 0;
1144 }
1145
1146 static int tvp5150_g_sliced_fmt(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_format *svbi)
1147 {
1148         int i, mask = 0;
1149
1150         memset(svbi->service_lines, 0, sizeof(svbi->service_lines));
1151
1152         for (i = 0; i <= 23; i++) {
1153                 svbi->service_lines[0][i] =
1154                         tvp5150_get_vbi(sd, i);
1155                 mask |= svbi->service_lines[0][i];
1156         }
1157         svbi->service_set = mask;
1158         return 0;
1159 }
1160
1161 #ifdef CONFIG_VIDEO_ADV_DEBUG
1162 static int tvp5150_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg)
1163 {
1164         int res;
1165
1166         res = tvp5150_read(sd, reg->reg & 0xff);
1167         if (res < 0) {
1168                 dev_err(sd->dev, "%s: failed with error = %d\n", __func__, res);
1169                 return res;
1170         }
1171
1172         reg->val = res;
1173         reg->size = 1;
1174         return 0;
1175 }
1176
1177 static int tvp5150_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_register *reg)
1178 {
1179         return tvp5150_write(sd, reg->reg & 0xff, reg->val & 0xff);
1180 }
1181 #endif
1182
1183 static int tvp5150_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
1184 {
1185         int status = tvp5150_read(sd, 0x88);
1186
1187         vt->signal = ((status & 0x04) && (status & 0x02)) ? 0xffff : 0x0;
1188         return 0;
1189 }
1190
1191 static int tvp5150_registered(struct v4l2_subdev *sd)
1192 {
1193 #ifdef CONFIG_MEDIA_CONTROLLER
1194         struct tvp5150 *decoder = to_tvp5150(sd);
1195         int ret = 0;
1196         int i;
1197
1198         for (i = 0; i < TVP5150_INPUT_NUM; i++) {
1199                 struct media_entity *input = &decoder->input_ent[i];
1200                 struct media_pad *pad = &decoder->input_pad[i];
1201
1202                 if (!input->name)
1203                         continue;
1204
1205                 decoder->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
1206
1207                 ret = media_entity_pads_init(input, 1, pad);
1208                 if (ret < 0)
1209                         return ret;
1210
1211                 ret = media_device_register_entity(sd->v4l2_dev->mdev, input);
1212                 if (ret < 0)
1213                         return ret;
1214
1215                 ret = media_create_pad_link(input, 0, &sd->entity,
1216                                             DEMOD_PAD_IF_INPUT, 0);
1217                 if (ret < 0) {
1218                         media_device_unregister_entity(input);
1219                         return ret;
1220                 }
1221         }
1222 #endif
1223
1224         return 0;
1225 }
1226
1227 /* ----------------------------------------------------------------------- */
1228
1229 static const struct v4l2_ctrl_ops tvp5150_ctrl_ops = {
1230         .s_ctrl = tvp5150_s_ctrl,
1231 };
1232
1233 static const struct v4l2_subdev_core_ops tvp5150_core_ops = {
1234         .log_status = tvp5150_log_status,
1235         .reset = tvp5150_reset,
1236 #ifdef CONFIG_VIDEO_ADV_DEBUG
1237         .g_register = tvp5150_g_register,
1238         .s_register = tvp5150_s_register,
1239 #endif
1240 };
1241
1242 static const struct v4l2_subdev_tuner_ops tvp5150_tuner_ops = {
1243         .g_tuner = tvp5150_g_tuner,
1244 };
1245
1246 static const struct v4l2_subdev_video_ops tvp5150_video_ops = {
1247         .s_std = tvp5150_s_std,
1248         .s_stream = tvp5150_s_stream,
1249         .s_routing = tvp5150_s_routing,
1250         .g_mbus_config = tvp5150_g_mbus_config,
1251 };
1252
1253 static const struct v4l2_subdev_vbi_ops tvp5150_vbi_ops = {
1254         .g_sliced_vbi_cap = tvp5150_g_sliced_vbi_cap,
1255         .g_sliced_fmt = tvp5150_g_sliced_fmt,
1256         .s_sliced_fmt = tvp5150_s_sliced_fmt,
1257         .s_raw_fmt = tvp5150_s_raw_fmt,
1258 };
1259
1260 static const struct v4l2_subdev_pad_ops tvp5150_pad_ops = {
1261         .enum_mbus_code = tvp5150_enum_mbus_code,
1262         .enum_frame_size = tvp5150_enum_frame_size,
1263         .set_fmt = tvp5150_fill_fmt,
1264         .get_fmt = tvp5150_fill_fmt,
1265         .get_selection = tvp5150_get_selection,
1266         .set_selection = tvp5150_set_selection,
1267 };
1268
1269 static const struct v4l2_subdev_ops tvp5150_ops = {
1270         .core = &tvp5150_core_ops,
1271         .tuner = &tvp5150_tuner_ops,
1272         .video = &tvp5150_video_ops,
1273         .vbi = &tvp5150_vbi_ops,
1274         .pad = &tvp5150_pad_ops,
1275 };
1276
1277 static const struct v4l2_subdev_internal_ops tvp5150_internal_ops = {
1278         .registered = tvp5150_registered,
1279 };
1280
1281
1282 /****************************************************************************
1283                         I2C Client & Driver
1284  ****************************************************************************/
1285
1286 static int tvp5150_detect_version(struct tvp5150 *core)
1287 {
1288         struct v4l2_subdev *sd = &core->sd;
1289         struct i2c_client *c = v4l2_get_subdevdata(sd);
1290         unsigned int i;
1291         u8 regs[4];
1292         int res;
1293
1294         /*
1295          * Read consequent registers - TVP5150_MSB_DEV_ID, TVP5150_LSB_DEV_ID,
1296          * TVP5150_ROM_MAJOR_VER, TVP5150_ROM_MINOR_VER
1297          */
1298         for (i = 0; i < 4; i++) {
1299                 res = tvp5150_read(sd, TVP5150_MSB_DEV_ID + i);
1300                 if (res < 0)
1301                         return res;
1302                 regs[i] = res;
1303         }
1304
1305         core->dev_id = (regs[0] << 8) | regs[1];
1306         core->rom_ver = (regs[2] << 8) | regs[3];
1307
1308         dev_info(sd->dev, "tvp%04x (%u.%u) chip found @ 0x%02x (%s)\n",
1309                   core->dev_id, regs[2], regs[3], c->addr << 1,
1310                   c->adapter->name);
1311
1312         if (core->dev_id == 0x5150 && core->rom_ver == 0x0321) {
1313                 dev_info(sd->dev, "tvp5150a detected.\n");
1314         } else if (core->dev_id == 0x5150 && core->rom_ver == 0x0400) {
1315                 dev_info(sd->dev, "tvp5150am1 detected.\n");
1316
1317                 /* ITU-T BT.656.4 timing */
1318                 tvp5150_write(sd, TVP5150_REV_SELECT, 0);
1319         } else if (core->dev_id == 0x5151 && core->rom_ver == 0x0100) {
1320                 dev_info(sd->dev, "tvp5151 detected.\n");
1321         } else {
1322                 dev_info(sd->dev, "*** unknown tvp%04x chip detected.\n",
1323                           core->dev_id);
1324         }
1325
1326         return 0;
1327 }
1328
1329 static int tvp5150_init(struct i2c_client *c)
1330 {
1331         struct gpio_desc *pdn_gpio;
1332         struct gpio_desc *reset_gpio;
1333
1334         pdn_gpio = devm_gpiod_get_optional(&c->dev, "pdn", GPIOD_OUT_HIGH);
1335         if (IS_ERR(pdn_gpio))
1336                 return PTR_ERR(pdn_gpio);
1337
1338         if (pdn_gpio) {
1339                 gpiod_set_value_cansleep(pdn_gpio, 0);
1340                 /* Delay time between power supplies active and reset */
1341                 msleep(20);
1342         }
1343
1344         reset_gpio = devm_gpiod_get_optional(&c->dev, "reset", GPIOD_OUT_HIGH);
1345         if (IS_ERR(reset_gpio))
1346                 return PTR_ERR(reset_gpio);
1347
1348         if (reset_gpio) {
1349                 /* RESETB pulse duration */
1350                 ndelay(500);
1351                 gpiod_set_value_cansleep(reset_gpio, 0);
1352                 /* Delay time between end of reset to I2C active */
1353                 usleep_range(200, 250);
1354         }
1355
1356         return 0;
1357 }
1358
1359 static int tvp5150_parse_dt(struct tvp5150 *decoder, struct device_node *np)
1360 {
1361         struct v4l2_fwnode_endpoint bus_cfg;
1362         struct device_node *ep;
1363 #ifdef CONFIG_MEDIA_CONTROLLER
1364         struct device_node *connectors, *child;
1365         struct media_entity *input;
1366         const char *name;
1367         u32 input_type;
1368 #endif
1369         unsigned int flags;
1370         int ret = 0;
1371
1372         ep = of_graph_get_next_endpoint(np, NULL);
1373         if (!ep)
1374                 return -EINVAL;
1375
1376         ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(ep), &bus_cfg);
1377         if (ret)
1378                 goto err;
1379
1380         flags = bus_cfg.bus.parallel.flags;
1381
1382         if (bus_cfg.bus_type == V4L2_MBUS_PARALLEL &&
1383             !(flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH &&
1384               flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH &&
1385               flags & V4L2_MBUS_FIELD_EVEN_LOW)) {
1386                 ret = -EINVAL;
1387                 goto err;
1388         }
1389
1390         decoder->mbus_type = bus_cfg.bus_type;
1391
1392 #ifdef CONFIG_MEDIA_CONTROLLER
1393         connectors = of_get_child_by_name(np, "connectors");
1394
1395         if (!connectors)
1396                 goto err;
1397
1398         for_each_available_child_of_node(connectors, child) {
1399                 ret = of_property_read_u32(child, "input", &input_type);
1400                 if (ret) {
1401                         dev_err(decoder->sd.dev,
1402                                  "missing type property in node %s\n",
1403                                  child->name);
1404                         goto err_connector;
1405                 }
1406
1407                 if (input_type >= TVP5150_INPUT_NUM) {
1408                         ret = -EINVAL;
1409                         goto err_connector;
1410                 }
1411
1412                 input = &decoder->input_ent[input_type];
1413
1414                 /* Each input connector can only be defined once */
1415                 if (input->name) {
1416                         dev_err(decoder->sd.dev,
1417                                  "input %s with same type already exists\n",
1418                                  input->name);
1419                         ret = -EINVAL;
1420                         goto err_connector;
1421                 }
1422
1423                 switch (input_type) {
1424                 case TVP5150_COMPOSITE0:
1425                 case TVP5150_COMPOSITE1:
1426                         input->function = MEDIA_ENT_F_CONN_COMPOSITE;
1427                         break;
1428                 case TVP5150_SVIDEO:
1429                         input->function = MEDIA_ENT_F_CONN_SVIDEO;
1430                         break;
1431                 }
1432
1433                 input->flags = MEDIA_ENT_FL_CONNECTOR;
1434
1435                 ret = of_property_read_string(child, "label", &name);
1436                 if (ret < 0) {
1437                         dev_err(decoder->sd.dev,
1438                                  "missing label property in node %s\n",
1439                                  child->name);
1440                         goto err_connector;
1441                 }
1442
1443                 input->name = name;
1444         }
1445
1446 err_connector:
1447         of_node_put(connectors);
1448 #endif
1449 err:
1450         of_node_put(ep);
1451         return ret;
1452 }
1453
1454 static const char * const tvp5150_test_patterns[2] = {
1455         "Disabled",
1456         "Black screen"
1457 };
1458
1459 static int tvp5150_probe(struct i2c_client *c,
1460                          const struct i2c_device_id *id)
1461 {
1462         struct tvp5150 *core;
1463         struct v4l2_subdev *sd;
1464         struct device_node *np = c->dev.of_node;
1465         int res;
1466
1467         /* Check if the adapter supports the needed features */
1468         if (!i2c_check_functionality(c->adapter,
1469              I2C_FUNC_SMBUS_READ_BYTE | I2C_FUNC_SMBUS_WRITE_BYTE_DATA))
1470                 return -EIO;
1471
1472         res = tvp5150_init(c);
1473         if (res)
1474                 return res;
1475
1476         core = devm_kzalloc(&c->dev, sizeof(*core), GFP_KERNEL);
1477         if (!core)
1478                 return -ENOMEM;
1479
1480         sd = &core->sd;
1481
1482         if (IS_ENABLED(CONFIG_OF) && np) {
1483                 res = tvp5150_parse_dt(core, np);
1484                 if (res) {
1485                         dev_err(sd->dev, "DT parsing error: %d\n", res);
1486                         return res;
1487                 }
1488         } else {
1489                 /* Default to BT.656 embedded sync */
1490                 core->mbus_type = V4L2_MBUS_BT656;
1491         }
1492
1493         v4l2_i2c_subdev_init(sd, c, &tvp5150_ops);
1494         sd->internal_ops = &tvp5150_internal_ops;
1495         sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
1496
1497 #if defined(CONFIG_MEDIA_CONTROLLER)
1498         core->pads[DEMOD_PAD_IF_INPUT].flags = MEDIA_PAD_FL_SINK;
1499         core->pads[DEMOD_PAD_VID_OUT].flags = MEDIA_PAD_FL_SOURCE;
1500         core->pads[DEMOD_PAD_VBI_OUT].flags = MEDIA_PAD_FL_SOURCE;
1501
1502         sd->entity.function = MEDIA_ENT_F_ATV_DECODER;
1503
1504         res = media_entity_pads_init(&sd->entity, DEMOD_NUM_PADS, core->pads);
1505         if (res < 0)
1506                 return res;
1507
1508         sd->entity.ops = &tvp5150_sd_media_ops;
1509 #endif
1510
1511         res = tvp5150_detect_version(core);
1512         if (res < 0)
1513                 return res;
1514
1515         core->norm = V4L2_STD_ALL;      /* Default is autodetect */
1516         core->input = TVP5150_COMPOSITE1;
1517         core->enable = true;
1518
1519         v4l2_ctrl_handler_init(&core->hdl, 5);
1520         v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
1521                         V4L2_CID_BRIGHTNESS, 0, 255, 1, 128);
1522         v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
1523                         V4L2_CID_CONTRAST, 0, 255, 1, 128);
1524         v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
1525                         V4L2_CID_SATURATION, 0, 255, 1, 128);
1526         v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
1527                         V4L2_CID_HUE, -128, 127, 1, 0);
1528         v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
1529                         V4L2_CID_PIXEL_RATE, 27000000,
1530                         27000000, 1, 27000000);
1531         v4l2_ctrl_new_std_menu_items(&core->hdl, &tvp5150_ctrl_ops,
1532                                      V4L2_CID_TEST_PATTERN,
1533                                      ARRAY_SIZE(tvp5150_test_patterns),
1534                                      0, 0, tvp5150_test_patterns);
1535         sd->ctrl_handler = &core->hdl;
1536         if (core->hdl.error) {
1537                 res = core->hdl.error;
1538                 goto err;
1539         }
1540
1541         /* Default is no cropping */
1542         core->rect.top = 0;
1543         if (tvp5150_read_std(sd) & V4L2_STD_525_60)
1544                 core->rect.height = TVP5150_V_MAX_525_60;
1545         else
1546                 core->rect.height = TVP5150_V_MAX_OTHERS;
1547         core->rect.left = 0;
1548         core->rect.width = TVP5150_H_MAX;
1549
1550         tvp5150_reset(sd, 0);   /* Calls v4l2_ctrl_handler_setup() */
1551
1552         res = v4l2_async_register_subdev(sd);
1553         if (res < 0)
1554                 goto err;
1555
1556         if (debug > 1)
1557                 tvp5150_log_status(sd);
1558         return 0;
1559
1560 err:
1561         v4l2_ctrl_handler_free(&core->hdl);
1562         return res;
1563 }
1564
1565 static int tvp5150_remove(struct i2c_client *c)
1566 {
1567         struct v4l2_subdev *sd = i2c_get_clientdata(c);
1568         struct tvp5150 *decoder = to_tvp5150(sd);
1569
1570         dev_dbg_lvl(sd->dev, 1, debug,
1571                 "tvp5150.c: removing tvp5150 adapter on address 0x%x\n",
1572                 c->addr << 1);
1573
1574         v4l2_async_unregister_subdev(sd);
1575         v4l2_ctrl_handler_free(&decoder->hdl);
1576         return 0;
1577 }
1578
1579 /* ----------------------------------------------------------------------- */
1580
1581 static const struct i2c_device_id tvp5150_id[] = {
1582         { "tvp5150", 0 },
1583         { }
1584 };
1585 MODULE_DEVICE_TABLE(i2c, tvp5150_id);
1586
1587 #if IS_ENABLED(CONFIG_OF)
1588 static const struct of_device_id tvp5150_of_match[] = {
1589         { .compatible = "ti,tvp5150", },
1590         { /* sentinel */ },
1591 };
1592 MODULE_DEVICE_TABLE(of, tvp5150_of_match);
1593 #endif
1594
1595 static struct i2c_driver tvp5150_driver = {
1596         .driver = {
1597                 .of_match_table = of_match_ptr(tvp5150_of_match),
1598                 .name   = "tvp5150",
1599         },
1600         .probe          = tvp5150_probe,
1601         .remove         = tvp5150_remove,
1602         .id_table       = tvp5150_id,
1603 };
1604
1605 module_i2c_driver(tvp5150_driver);