drivers/media/i2c/tvp5150.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 //
   3 // tvp5150 - Texas Instruments TVP5150A/AM1 and TVP5151 video decoder driver
   4 //
   5 // Copyright (c) 2005,2006 Mauro Carvalho Chehab <mchehab@infradead.org>
   6
   7 #include <dt-bindings/media/tvp5150.h>
   8 #include <linux/i2c.h>
   9 #include <linux/slab.h>
  10 #include <linux/videodev2.h>
  11 #include <linux/delay.h>
  12 #include <linux/gpio/consumer.h>
  13 #include <linux/module.h>
  14 #include <linux/of_graph.h>
  15 #include <media/v4l2-async.h>
  16 #include <media/v4l2-device.h>
  17 #include <media/v4l2-ctrls.h>
  18 #include <media/v4l2-fwnode.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 v2");
  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         /*
 295          * Setup the FID/GLCO/VLK/HVLK and INTREQ/GPCL/VBLK output signals. For
 296          * S-Video we output the vertical lock (VLK) signal on FID/GLCO/VLK/HVLK
 297          * and set INTREQ/GPCL/VBLK to logic 0. For composite we output the
 298          * field indicator (FID) signal on FID/GLCO/VLK/HVLK and set
 299          * INTREQ/GPCL/VBLK to logic 1.
 300          */
 301         val = tvp5150_read(sd, TVP5150_MISC_CTL);
 302         if (val < 0) {
 303                 dev_err(sd->dev, "%s: failed with error = %d\n", __func__, val);
 304                 return;
 305         }
 306
 307         if (decoder->input == TVP5150_SVIDEO)
 308                 val = (val & ~TVP5150_MISC_CTL_GPCL) | TVP5150_MISC_CTL_HVLK;
 309         else
 310                 val = (val & ~TVP5150_MISC_CTL_HVLK) | TVP5150_MISC_CTL_GPCL;
 311         tvp5150_write(sd, TVP5150_MISC_CTL, val);
 312 };
 313
 314 struct i2c_reg_value {
 315         unsigned char reg;
 316         unsigned char value;
 317 };
 318
 319 /* Default values as sugested at TVP5150AM1 datasheet */
 320 static const struct i2c_reg_value tvp5150_init_default[] = {
 321         { /* 0x00 */
 322                 TVP5150_VD_IN_SRC_SEL_1,0x00
 323         },
 324         { /* 0x01 */
 325                 TVP5150_ANAL_CHL_CTL,0x15
 326         },
 327         { /* 0x02 */
 328                 TVP5150_OP_MODE_CTL,0x00
 329         },
 330         { /* 0x03 */
 331                 TVP5150_MISC_CTL,0x01
 332         },
 333         { /* 0x06 */
 334                 TVP5150_COLOR_KIL_THSH_CTL,0x10
 335         },
 336         { /* 0x07 */
 337                 TVP5150_LUMA_PROC_CTL_1,0x60
 338         },
 339         { /* 0x08 */
 340                 TVP5150_LUMA_PROC_CTL_2,0x00
 341         },
 342         { /* 0x09 */
 343                 TVP5150_BRIGHT_CTL,0x80
 344         },
 345         { /* 0x0a */
 346                 TVP5150_SATURATION_CTL,0x80
 347         },
 348         { /* 0x0b */
 349                 TVP5150_HUE_CTL,0x00
 350         },
 351         { /* 0x0c */
 352                 TVP5150_CONTRAST_CTL,0x80
 353         },
 354         { /* 0x0d */
 355                 TVP5150_DATA_RATE_SEL,0x47
 356         },
 357         { /* 0x0e */
 358                 TVP5150_LUMA_PROC_CTL_3,0x00
 359         },
 360         { /* 0x0f */
 361                 TVP5150_CONF_SHARED_PIN,0x08
 362         },
 363         { /* 0x11 */
 364                 TVP5150_ACT_VD_CROP_ST_MSB,0x00
 365         },
 366         { /* 0x12 */
 367                 TVP5150_ACT_VD_CROP_ST_LSB,0x00
 368         },
 369         { /* 0x13 */
 370                 TVP5150_ACT_VD_CROP_STP_MSB,0x00
 371         },
 372         { /* 0x14 */
 373                 TVP5150_ACT_VD_CROP_STP_LSB,0x00
 374         },
 375         { /* 0x15 */
 376                 TVP5150_GENLOCK,0x01
 377         },
 378         { /* 0x16 */
 379                 TVP5150_HORIZ_SYNC_START,0x80
 380         },
 381         { /* 0x18 */
 382                 TVP5150_VERT_BLANKING_START,0x00
 383         },
 384         { /* 0x19 */
 385                 TVP5150_VERT_BLANKING_STOP,0x00
 386         },
 387         { /* 0x1a */
 388                 TVP5150_CHROMA_PROC_CTL_1,0x0c
 389         },
 390         { /* 0x1b */
 391                 TVP5150_CHROMA_PROC_CTL_2,0x14
 392         },
 393         { /* 0x1c */
 394                 TVP5150_INT_RESET_REG_B,0x00
 395         },
 396         { /* 0x1d */
 397                 TVP5150_INT_ENABLE_REG_B,0x00
 398         },
 399         { /* 0x1e */
 400                 TVP5150_INTT_CONFIG_REG_B,0x00
 401         },
 402         { /* 0x28 */
 403                 TVP5150_VIDEO_STD,0x00
 404         },
 405         { /* 0x2e */
 406                 TVP5150_MACROVISION_ON_CTR,0x0f
 407         },
 408         { /* 0x2f */
 409                 TVP5150_MACROVISION_OFF_CTR,0x01
 410         },
 411         { /* 0xbb */
 412                 TVP5150_TELETEXT_FIL_ENA,0x00
 413         },
 414         { /* 0xc0 */
 415                 TVP5150_INT_STATUS_REG_A,0x00
 416         },
 417         { /* 0xc1 */
 418                 TVP5150_INT_ENABLE_REG_A,0x00
 419         },
 420         { /* 0xc2 */
 421                 TVP5150_INT_CONF,0x04
 422         },
 423         { /* 0xc8 */
 424                 TVP5150_FIFO_INT_THRESHOLD,0x80
 425         },
 426         { /* 0xc9 */
 427                 TVP5150_FIFO_RESET,0x00
 428         },
 429         { /* 0xca */
 430                 TVP5150_LINE_NUMBER_INT,0x00
 431         },
 432         { /* 0xcb */
 433                 TVP5150_PIX_ALIGN_REG_LOW,0x4e
 434         },
 435         { /* 0xcc */
 436                 TVP5150_PIX_ALIGN_REG_HIGH,0x00
 437         },
 438         { /* 0xcd */
 439                 TVP5150_FIFO_OUT_CTRL,0x01
 440         },
 441         { /* 0xcf */
 442                 TVP5150_FULL_FIELD_ENA,0x00
 443         },
 444         { /* 0xd0 */
 445                 TVP5150_LINE_MODE_INI,0x00
 446         },
 447         { /* 0xfc */
 448                 TVP5150_FULL_FIELD_MODE_REG,0x7f
 449         },
 450         { /* end of data */
 451                 0xff,0xff
 452         }
 453 };
 454
 455 /* Default values as sugested at TVP5150AM1 datasheet */
 456 static const struct i2c_reg_value tvp5150_init_enable[] = {
 457         {
 458                 TVP5150_CONF_SHARED_PIN, 2
 459         },{     /* Automatic offset and AGC enabled */
 460                 TVP5150_ANAL_CHL_CTL, 0x15
 461         },{     /* Activate YCrCb output 0x9 or 0xd ? */
 462                 TVP5150_MISC_CTL, TVP5150_MISC_CTL_GPCL |
 463                                   TVP5150_MISC_CTL_INTREQ_OE |
 464                                   TVP5150_MISC_CTL_YCBCR_OE |
 465                                   TVP5150_MISC_CTL_SYNC_OE |
 466                                   TVP5150_MISC_CTL_VBLANK |
 467                                   TVP5150_MISC_CTL_CLOCK_OE,
 468         },{     /* Activates video std autodetection for all standards */
 469                 TVP5150_AUTOSW_MSK, 0x0
 470         },{     /* Default format: 0x47. For 4:2:2: 0x40 */
 471                 TVP5150_DATA_RATE_SEL, 0x47
 472         },{
 473                 TVP5150_CHROMA_PROC_CTL_1, 0x0c
 474         },{
 475                 TVP5150_CHROMA_PROC_CTL_2, 0x54
 476         },{     /* Non documented, but initialized on WinTV USB2 */
 477                 0x27, 0x20
 478         },{
 479                 0xff,0xff
 480         }
 481 };
 482
 483 struct tvp5150_vbi_type {
 484         unsigned int vbi_type;
 485         unsigned int ini_line;
 486         unsigned int end_line;
 487         unsigned int by_field :1;
 488 };
 489
 490 struct i2c_vbi_ram_value {
 491         u16 reg;
 492         struct tvp5150_vbi_type type;
 493         unsigned char values[16];
 494 };
 495
 496 /* This struct have the values for each supported VBI Standard
 497  * by
 498  tvp5150_vbi_types should follow the same order as vbi_ram_default
 499  * value 0 means rom position 0x10, value 1 means rom position 0x30
 500  * and so on. There are 16 possible locations from 0 to 15.
 501  */
 502
 503 static struct i2c_vbi_ram_value vbi_ram_default[] =
 504 {
 505         /* FIXME: Current api doesn't handle all VBI types, those not
 506            yet supported are placed under #if 0 */
 507 #if 0
 508         [0] = {0x010, /* Teletext, SECAM, WST System A */
 509                 {V4L2_SLICED_TELETEXT_SECAM,6,23,1},
 510                 { 0xaa, 0xaa, 0xff, 0xff, 0xe7, 0x2e, 0x20, 0x26,
 511                   0xe6, 0xb4, 0x0e, 0x00, 0x00, 0x00, 0x10, 0x00 }
 512         },
 513 #endif
 514         [1] = {0x030, /* Teletext, PAL, WST System B */
 515                 {V4L2_SLICED_TELETEXT_B,6,22,1},
 516                 { 0xaa, 0xaa, 0xff, 0xff, 0x27, 0x2e, 0x20, 0x2b,
 517                   0xa6, 0x72, 0x10, 0x00, 0x00, 0x00, 0x10, 0x00 }
 518         },
 519 #if 0
 520         [2] = {0x050, /* Teletext, PAL, WST System C */
 521                 {V4L2_SLICED_TELETEXT_PAL_C,6,22,1},
 522                 { 0xaa, 0xaa, 0xff, 0xff, 0xe7, 0x2e, 0x20, 0x22,
 523                   0xa6, 0x98, 0x0d, 0x00, 0x00, 0x00, 0x10, 0x00 }
 524         },
 525         [3] = {0x070, /* Teletext, NTSC, WST System B */
 526                 {V4L2_SLICED_TELETEXT_NTSC_B,10,21,1},
 527                 { 0xaa, 0xaa, 0xff, 0xff, 0x27, 0x2e, 0x20, 0x23,
 528                   0x69, 0x93, 0x0d, 0x00, 0x00, 0x00, 0x10, 0x00 }
 529         },
 530         [4] = {0x090, /* Tetetext, NTSC NABTS System C */
 531                 {V4L2_SLICED_TELETEXT_NTSC_C,10,21,1},
 532                 { 0xaa, 0xaa, 0xff, 0xff, 0xe7, 0x2e, 0x20, 0x22,
 533                   0x69, 0x93, 0x0d, 0x00, 0x00, 0x00, 0x15, 0x00 }
 534         },
 535         [5] = {0x0b0, /* Teletext, NTSC-J, NABTS System D */
 536                 {V4L2_SLICED_TELETEXT_NTSC_D,10,21,1},
 537                 { 0xaa, 0xaa, 0xff, 0xff, 0xa7, 0x2e, 0x20, 0x23,
 538                   0x69, 0x93, 0x0d, 0x00, 0x00, 0x00, 0x10, 0x00 }
 539         },
 540         [6] = {0x0d0, /* Closed Caption, PAL/SECAM */
 541                 {V4L2_SLICED_CAPTION_625,22,22,1},
 542                 { 0xaa, 0x2a, 0xff, 0x3f, 0x04, 0x51, 0x6e, 0x02,
 543                   0xa6, 0x7b, 0x09, 0x00, 0x00, 0x00, 0x27, 0x00 }
 544         },
 545 #endif
 546         [7] = {0x0f0, /* Closed Caption, NTSC */
 547                 {V4L2_SLICED_CAPTION_525,21,21,1},
 548                 { 0xaa, 0x2a, 0xff, 0x3f, 0x04, 0x51, 0x6e, 0x02,
 549                   0x69, 0x8c, 0x09, 0x00, 0x00, 0x00, 0x27, 0x00 }
 550         },
 551         [8] = {0x110, /* Wide Screen Signal, PAL/SECAM */
 552                 {V4L2_SLICED_WSS_625,23,23,1},
 553                 { 0x5b, 0x55, 0xc5, 0xff, 0x00, 0x71, 0x6e, 0x42,
 554                   0xa6, 0xcd, 0x0f, 0x00, 0x00, 0x00, 0x3a, 0x00 }
 555         },
 556 #if 0
 557         [9] = {0x130, /* Wide Screen Signal, NTSC C */
 558                 {V4L2_SLICED_WSS_525,20,20,1},
 559                 { 0x38, 0x00, 0x3f, 0x00, 0x00, 0x71, 0x6e, 0x43,
 560                   0x69, 0x7c, 0x08, 0x00, 0x00, 0x00, 0x39, 0x00 }
 561         },
 562         [10] = {0x150, /* Vertical Interval Timecode (VITC), PAL/SECAM */
 563                 {V4l2_SLICED_VITC_625,6,22,0},
 564                 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x8f, 0x6d, 0x49,
 565                   0xa6, 0x85, 0x08, 0x00, 0x00, 0x00, 0x4c, 0x00 }
 566         },
 567         [11] = {0x170, /* Vertical Interval Timecode (VITC), NTSC */
 568                 {V4l2_SLICED_VITC_525,10,20,0},
 569                 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x8f, 0x6d, 0x49,
 570                   0x69, 0x94, 0x08, 0x00, 0x00, 0x00, 0x4c, 0x00 }
 571         },
 572 #endif
 573         [12] = {0x190, /* Video Program System (VPS), PAL */
 574                 {V4L2_SLICED_VPS,16,16,0},
 575                 { 0xaa, 0xaa, 0xff, 0xff, 0xba, 0xce, 0x2b, 0x0d,
 576                   0xa6, 0xda, 0x0b, 0x00, 0x00, 0x00, 0x60, 0x00 }
 577         },
 578         /* 0x1d0 User programmable */
 579 };
 580
 581 static int tvp5150_write_inittab(struct v4l2_subdev *sd,
 582                                 const struct i2c_reg_value *regs)
 583 {
 584         while (regs->reg != 0xff) {
 585                 tvp5150_write(sd, regs->reg, regs->value);
 586                 regs++;
 587         }
 588         return 0;
 589 }
 590
 591 static int tvp5150_vdp_init(struct v4l2_subdev *sd)
 592 {
 593         unsigned int i;
 594         int j;
 595
 596         /* Disable Full Field */
 597         tvp5150_write(sd, TVP5150_FULL_FIELD_ENA, 0);
 598
 599         /* Before programming, Line mode should be at 0xff */
 600         for (i = TVP5150_LINE_MODE_INI; i <= TVP5150_LINE_MODE_END; i++)
 601                 tvp5150_write(sd, i, 0xff);
 602
 603         /* Load Ram Table */
 604         for (j = 0; j < ARRAY_SIZE(vbi_ram_default); j++) {
 605                 const struct i2c_vbi_ram_value *regs = &vbi_ram_default[j];
 606
 607                 if (!regs->type.vbi_type)
 608                         continue;
 609
 610                 tvp5150_write(sd, TVP5150_CONF_RAM_ADDR_HIGH, regs->reg >> 8);
 611                 tvp5150_write(sd, TVP5150_CONF_RAM_ADDR_LOW, regs->reg);
 612
 613                 for (i = 0; i < 16; i++)
 614                         tvp5150_write(sd, TVP5150_VDP_CONF_RAM_DATA, regs->values[i]);
 615         }
 616         return 0;
 617 }
 618
 619 /* Fills VBI capabilities based on i2c_vbi_ram_value struct */
 620 static int tvp5150_g_sliced_vbi_cap(struct v4l2_subdev *sd,
 621                                 struct v4l2_sliced_vbi_cap *cap)
 622 {
 623         int line, i;
 624
 625         dev_dbg_lvl(sd->dev, 1, debug, "g_sliced_vbi_cap\n");
 626         memset(cap, 0, sizeof *cap);
 627
 628         for (i = 0; i < ARRAY_SIZE(vbi_ram_default); i++) {
 629                 const struct i2c_vbi_ram_value *regs = &vbi_ram_default[i];
 630
 631                 if (!regs->type.vbi_type)
 632                         continue;
 633
 634                 for (line = regs->type.ini_line;
 635                      line <= regs->type.end_line;
 636                      line++) {
 637                         cap->service_lines[0][line] |= regs->type.vbi_type;
 638                 }
 639                 cap->service_set |= regs->type.vbi_type;
 640         }
 641         return 0;
 642 }
 643
 644 /* Set vbi processing
 645  * type - one of tvp5150_vbi_types
 646  * line - line to gather data
 647  * fields: bit 0 field1, bit 1, field2
 648  * flags (default=0xf0) is a bitmask, were set means:
 649  *      bit 7: enable filtering null bytes on CC
 650  *      bit 6: send data also to FIFO
 651  *      bit 5: don't allow data with errors on FIFO
 652  *      bit 4: enable ECC when possible
 653  * pix_align = pix alignment:
 654  *      LSB = field1
 655  *      MSB = field2
 656  */
 657 static int tvp5150_set_vbi(struct v4l2_subdev *sd,
 658                         unsigned int type,u8 flags, int line,
 659                         const int fields)
 660 {
 661         struct tvp5150 *decoder = to_tvp5150(sd);
 662         v4l2_std_id std = decoder->norm;
 663         u8 reg;
 664         int i, pos = 0;
 665
 666         if (std == V4L2_STD_ALL) {
 667                 dev_err(sd->dev, "VBI can't be configured without knowing number of lines\n");
 668                 return 0;
 669         } else if (std & V4L2_STD_625_50) {
 670                 /* Don't follow NTSC Line number convension */
 671                 line += 3;
 672         }
 673
 674         if (line < 6 || line > 27)
 675                 return 0;
 676
 677         for (i = 0; i < ARRAY_SIZE(vbi_ram_default); i++) {
 678                 const struct i2c_vbi_ram_value *regs =  &vbi_ram_default[i];
 679
 680                 if (!regs->type.vbi_type)
 681                         continue;
 682
 683                 if ((type & regs->type.vbi_type) &&
 684                     (line >= regs->type.ini_line) &&
 685                     (line <= regs->type.end_line))
 686                         break;
 687                 pos++;
 688         }
 689
 690         type = pos | (flags & 0xf0);
 691         reg = ((line - 6) << 1) + TVP5150_LINE_MODE_INI;
 692
 693         if (fields & 1)
 694                 tvp5150_write(sd, reg, type);
 695
 696         if (fields & 2)
 697                 tvp5150_write(sd, reg + 1, type);
 698
 699         return type;
 700 }
 701
 702 static int tvp5150_get_vbi(struct v4l2_subdev *sd, int line)
 703 {
 704         struct tvp5150 *decoder = to_tvp5150(sd);
 705         v4l2_std_id std = decoder->norm;
 706         u8 reg;
 707         int pos, type = 0;
 708         int i, ret = 0;
 709
 710         if (std == V4L2_STD_ALL) {
 711                 dev_err(sd->dev, "VBI can't be configured without knowing number of lines\n");
 712                 return 0;
 713         } else if (std & V4L2_STD_625_50) {
 714                 /* Don't follow NTSC Line number convension */
 715                 line += 3;
 716         }
 717
 718         if (line < 6 || line > 27)
 719                 return 0;
 720
 721         reg = ((line - 6) << 1) + TVP5150_LINE_MODE_INI;
 722
 723         for (i = 0; i <= 1; i++) {
 724                 ret = tvp5150_read(sd, reg + i);
 725                 if (ret < 0) {
 726                         dev_err(sd->dev, "%s: failed with error = %d\n",
 727                                  __func__, ret);
 728                         return 0;
 729                 }
 730                 pos = ret & 0x0f;
 731                 if (pos < ARRAY_SIZE(vbi_ram_default))
 732                         type |= vbi_ram_default[pos].type.vbi_type;
 733         }
 734
 735         return type;
 736 }
 737
 738 static int tvp5150_set_std(struct v4l2_subdev *sd, v4l2_std_id std)
 739 {
 740         struct tvp5150 *decoder = to_tvp5150(sd);
 741         int fmt = 0;
 742
 743         decoder->norm = std;
 744
 745         /* First tests should be against specific std */
 746
 747         if (std == V4L2_STD_NTSC_443) {
 748                 fmt = VIDEO_STD_NTSC_4_43_BIT;
 749         } else if (std == V4L2_STD_PAL_M) {
 750                 fmt = VIDEO_STD_PAL_M_BIT;
 751         } else if (std == V4L2_STD_PAL_N || std == V4L2_STD_PAL_Nc) {
 752                 fmt = VIDEO_STD_PAL_COMBINATION_N_BIT;
 753         } else {
 754                 /* Then, test against generic ones */
 755                 if (std & V4L2_STD_NTSC)
 756                         fmt = VIDEO_STD_NTSC_MJ_BIT;
 757                 else if (std & V4L2_STD_PAL)
 758                         fmt = VIDEO_STD_PAL_BDGHIN_BIT;
 759                 else if (std & V4L2_STD_SECAM)
 760                         fmt = VIDEO_STD_SECAM_BIT;
 761         }
 762
 763         dev_dbg_lvl(sd->dev, 1, debug, "Set video std register to %d.\n", fmt);
 764         tvp5150_write(sd, TVP5150_VIDEO_STD, fmt);
 765         return 0;
 766 }
 767
 768 static int tvp5150_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
 769 {
 770         struct tvp5150 *decoder = to_tvp5150(sd);
 771
 772         if (decoder->norm == std)
 773                 return 0;
 774
 775         /* Change cropping height limits */
 776         if (std & V4L2_STD_525_60)
 777                 decoder->rect.height = TVP5150_V_MAX_525_60;
 778         else
 779                 decoder->rect.height = TVP5150_V_MAX_OTHERS;
 780
 781
 782         return tvp5150_set_std(sd, std);
 783 }
 784
 785 static int tvp5150_reset(struct v4l2_subdev *sd, u32 val)
 786 {
 787         struct tvp5150 *decoder = to_tvp5150(sd);
 788
 789         /* Initializes TVP5150 to its default values */
 790         tvp5150_write_inittab(sd, tvp5150_init_default);
 791
 792         /* Initializes VDP registers */
 793         tvp5150_vdp_init(sd);
 794
 795         /* Selects decoder input */
 796         tvp5150_selmux(sd);
 797
 798         /* Initializes TVP5150 to stream enabled values */
 799         tvp5150_write_inittab(sd, tvp5150_init_enable);
 800
 801         /* Initialize image preferences */
 802         v4l2_ctrl_handler_setup(&decoder->hdl);
 803
 804         tvp5150_set_std(sd, decoder->norm);
 805
 806         if (decoder->mbus_type == V4L2_MBUS_PARALLEL)
 807                 tvp5150_write(sd, TVP5150_DATA_RATE_SEL, 0x40);
 808
 809         return 0;
 810 };
 811
 812 static int tvp5150_s_ctrl(struct v4l2_ctrl *ctrl)
 813 {
 814         struct v4l2_subdev *sd = to_sd(ctrl);
 815         struct tvp5150 *decoder = to_tvp5150(sd);
 816
 817         switch (ctrl->id) {
 818         case V4L2_CID_BRIGHTNESS:
 819                 tvp5150_write(sd, TVP5150_BRIGHT_CTL, ctrl->val);
 820                 return 0;
 821         case V4L2_CID_CONTRAST:
 822                 tvp5150_write(sd, TVP5150_CONTRAST_CTL, ctrl->val);
 823                 return 0;
 824         case V4L2_CID_SATURATION:
 825                 tvp5150_write(sd, TVP5150_SATURATION_CTL, ctrl->val);
 826                 return 0;
 827         case V4L2_CID_HUE:
 828                 tvp5150_write(sd, TVP5150_HUE_CTL, ctrl->val);
 829                 break;
 830         case V4L2_CID_TEST_PATTERN:
 831                 decoder->enable = ctrl->val ? false : true;
 832                 tvp5150_selmux(sd);
 833                 return 0;
 834         }
 835         return -EINVAL;
 836 }
 837
 838 static v4l2_std_id tvp5150_read_std(struct v4l2_subdev *sd)
 839 {
 840         int val = tvp5150_read(sd, TVP5150_STATUS_REG_5);
 841
 842         switch (val & 0x0F) {
 843         case 0x01:
 844                 return V4L2_STD_NTSC;
 845         case 0x03:
 846                 return V4L2_STD_PAL;
 847         case 0x05:
 848                 return V4L2_STD_PAL_M;
 849         case 0x07:
 850                 return V4L2_STD_PAL_N | V4L2_STD_PAL_Nc;
 851         case 0x09:
 852                 return V4L2_STD_NTSC_443;
 853         case 0xb:
 854                 return V4L2_STD_SECAM;
 855         default:
 856                 return V4L2_STD_UNKNOWN;
 857         }
 858 }
 859
 860 static int tvp5150_fill_fmt(struct v4l2_subdev *sd,
 861                 struct v4l2_subdev_pad_config *cfg,
 862                 struct v4l2_subdev_format *format)
 863 {
 864         struct v4l2_mbus_framefmt *f;
 865         struct tvp5150 *decoder = to_tvp5150(sd);
 866
 867         if (!format || (format->pad != DEMOD_PAD_VID_OUT))
 868                 return -EINVAL;
 869
 870         f = &format->format;
 871
 872         f->width = decoder->rect.width;
 873         f->height = decoder->rect.height;
 874
 875         f->code = MEDIA_BUS_FMT_UYVY8_2X8;
 876         f->field = V4L2_FIELD_ALTERNATE;
 877         f->colorspace = V4L2_COLORSPACE_SMPTE170M;
 878
 879         dev_dbg_lvl(sd->dev, 1, debug, "width = %d, height = %d\n", f->width,
 880                         f->height);
 881         return 0;
 882 }
 883
 884 static int tvp5150_set_selection(struct v4l2_subdev *sd,
 885                                  struct v4l2_subdev_pad_config *cfg,
 886                                  struct v4l2_subdev_selection *sel)
 887 {
 888         struct tvp5150 *decoder = to_tvp5150(sd);
 889         struct v4l2_rect rect = sel->r;
 890         v4l2_std_id std;
 891         int hmax;
 892
 893         if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE ||
 894             sel->target != V4L2_SEL_TGT_CROP)
 895                 return -EINVAL;
 896
 897         dev_dbg_lvl(sd->dev, 1, debug, "%s left=%d, top=%d, width=%d, height=%d\n",
 898                 __func__, rect.left, rect.top, rect.width, rect.height);
 899
 900         /* tvp5150 has some special limits */
 901         rect.left = clamp(rect.left, 0, TVP5150_MAX_CROP_LEFT);
 902         rect.width = clamp_t(unsigned int, rect.width,
 903                              TVP5150_H_MAX - TVP5150_MAX_CROP_LEFT - rect.left,
 904                              TVP5150_H_MAX - rect.left);
 905         rect.top = clamp(rect.top, 0, TVP5150_MAX_CROP_TOP);
 906
 907         /* Calculate height based on current standard */
 908         if (decoder->norm == V4L2_STD_ALL)
 909                 std = tvp5150_read_std(sd);
 910         else
 911                 std = decoder->norm;
 912
 913         if (std & V4L2_STD_525_60)
 914                 hmax = TVP5150_V_MAX_525_60;
 915         else
 916                 hmax = TVP5150_V_MAX_OTHERS;
 917
 918         rect.height = clamp_t(unsigned int, rect.height,
 919                               hmax - TVP5150_MAX_CROP_TOP - rect.top,
 920                               hmax - rect.top);
 921
 922         tvp5150_write(sd, TVP5150_VERT_BLANKING_START, rect.top);
 923         tvp5150_write(sd, TVP5150_VERT_BLANKING_STOP,
 924                       rect.top + rect.height - hmax);
 925         tvp5150_write(sd, TVP5150_ACT_VD_CROP_ST_MSB,
 926                       rect.left >> TVP5150_CROP_SHIFT);
 927         tvp5150_write(sd, TVP5150_ACT_VD_CROP_ST_LSB,
 928                       rect.left | (1 << TVP5150_CROP_SHIFT));
 929         tvp5150_write(sd, TVP5150_ACT_VD_CROP_STP_MSB,
 930                       (rect.left + rect.width - TVP5150_MAX_CROP_LEFT) >>
 931                       TVP5150_CROP_SHIFT);
 932         tvp5150_write(sd, TVP5150_ACT_VD_CROP_STP_LSB,
 933                       rect.left + rect.width - TVP5150_MAX_CROP_LEFT);
 934
 935         decoder->rect = rect;
 936
 937         return 0;
 938 }
 939
 940 static int tvp5150_get_selection(struct v4l2_subdev *sd,
 941                                  struct v4l2_subdev_pad_config *cfg,
 942                                  struct v4l2_subdev_selection *sel)
 943 {
 944         struct tvp5150 *decoder = container_of(sd, struct tvp5150, sd);
 945         v4l2_std_id std;
 946
 947         if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE)
 948                 return -EINVAL;
 949
 950         switch (sel->target) {
 951         case V4L2_SEL_TGT_CROP_BOUNDS:
 952         case V4L2_SEL_TGT_CROP_DEFAULT:
 953                 sel->r.left = 0;
 954                 sel->r.top = 0;
 955                 sel->r.width = TVP5150_H_MAX;
 956
 957                 /* Calculate height based on current standard */
 958                 if (decoder->norm == V4L2_STD_ALL)
 959                         std = tvp5150_read_std(sd);
 960                 else
 961                         std = decoder->norm;
 962                 if (std & V4L2_STD_525_60)
 963                         sel->r.height = TVP5150_V_MAX_525_60;
 964                 else
 965                         sel->r.height = TVP5150_V_MAX_OTHERS;
 966                 return 0;
 967         case V4L2_SEL_TGT_CROP:
 968                 sel->r = decoder->rect;
 969                 return 0;
 970         default:
 971                 return -EINVAL;
 972         }
 973 }
 974
 975 static int tvp5150_g_mbus_config(struct v4l2_subdev *sd,
 976                                  struct v4l2_mbus_config *cfg)
 977 {
 978         struct tvp5150 *decoder = to_tvp5150(sd);
 979
 980         cfg->type = decoder->mbus_type;
 981         cfg->flags = V4L2_MBUS_MASTER | V4L2_MBUS_PCLK_SAMPLE_RISING
 982                    | V4L2_MBUS_FIELD_EVEN_LOW | V4L2_MBUS_DATA_ACTIVE_HIGH;
 983
 984         return 0;
 985 }
 986
 987 /****************************************************************************
 988                         V4L2 subdev pad ops
 989  ****************************************************************************/
 990 static int tvp5150_enum_mbus_code(struct v4l2_subdev *sd,
 991                 struct v4l2_subdev_pad_config *cfg,
 992                 struct v4l2_subdev_mbus_code_enum *code)
 993 {
 994         if (code->pad || code->index)
 995                 return -EINVAL;
 996
 997         code->code = MEDIA_BUS_FMT_UYVY8_2X8;
 998         return 0;
 999 }
1000
1001 static int tvp5150_enum_frame_size(struct v4l2_subdev *sd,
1002                                    struct v4l2_subdev_pad_config *cfg,
1003                                    struct v4l2_subdev_frame_size_enum *fse)
1004 {
1005         struct tvp5150 *decoder = to_tvp5150(sd);
1006
1007         if (fse->index >= 8 || fse->code != MEDIA_BUS_FMT_UYVY8_2X8)
1008                 return -EINVAL;
1009
1010         fse->code = MEDIA_BUS_FMT_UYVY8_2X8;
1011         fse->min_width = decoder->rect.width;
1012         fse->max_width = decoder->rect.width;
1013         fse->min_height = decoder->rect.height / 2;
1014         fse->max_height = decoder->rect.height / 2;
1015
1016         return 0;
1017 }
1018
1019 /****************************************************************************
1020                         Media entity ops
1021  ****************************************************************************/
1022
1023 #ifdef CONFIG_MEDIA_CONTROLLER
1024 static int tvp5150_link_setup(struct media_entity *entity,
1025                               const struct media_pad *local,
1026                               const struct media_pad *remote, u32 flags)
1027 {
1028         struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity);
1029         struct tvp5150 *decoder = to_tvp5150(sd);
1030         int i;
1031
1032         for (i = 0; i < TVP5150_INPUT_NUM; i++) {
1033                 if (remote->entity == &decoder->input_ent[i])
1034                         break;
1035         }
1036
1037         /* Do nothing for entities that are not input connectors */
1038         if (i == TVP5150_INPUT_NUM)
1039                 return 0;
1040
1041         decoder->input = i;
1042
1043         tvp5150_selmux(sd);
1044
1045         return 0;
1046 }
1047
1048 static const struct media_entity_operations tvp5150_sd_media_ops = {
1049         .link_setup = tvp5150_link_setup,
1050 };
1051 #endif
1052
1053 /****************************************************************************
1054                         I2C Command
1055  ****************************************************************************/
1056
1057 static int tvp5150_s_stream(struct v4l2_subdev *sd, int enable)
1058 {
1059         struct tvp5150 *decoder = to_tvp5150(sd);
1060         int val;
1061
1062         /* Enable or disable the video output signals. */
1063         val = tvp5150_read(sd, TVP5150_MISC_CTL);
1064         if (val < 0)
1065                 return val;
1066
1067         val &= ~(TVP5150_MISC_CTL_YCBCR_OE | TVP5150_MISC_CTL_SYNC_OE |
1068                  TVP5150_MISC_CTL_CLOCK_OE);
1069
1070         if (enable) {
1071                 /*
1072                  * Enable the YCbCr and clock outputs. In discrete sync mode
1073                  * (non-BT.656) additionally enable the the sync outputs.
1074                  */
1075                 val |= TVP5150_MISC_CTL_YCBCR_OE | TVP5150_MISC_CTL_CLOCK_OE;
1076                 if (decoder->mbus_type == V4L2_MBUS_PARALLEL)
1077                         val |= TVP5150_MISC_CTL_SYNC_OE;
1078         }
1079
1080         tvp5150_write(sd, TVP5150_MISC_CTL, val);
1081
1082         return 0;
1083 }
1084
1085 static int tvp5150_s_routing(struct v4l2_subdev *sd,
1086                              u32 input, u32 output, u32 config)
1087 {
1088         struct tvp5150 *decoder = to_tvp5150(sd);
1089
1090         decoder->input = input;
1091         decoder->output = output;
1092
1093         if (output == TVP5150_BLACK_SCREEN)
1094                 decoder->enable = false;
1095         else
1096                 decoder->enable = true;
1097
1098         tvp5150_selmux(sd);
1099         return 0;
1100 }
1101
1102 static int tvp5150_s_raw_fmt(struct v4l2_subdev *sd, struct v4l2_vbi_format *fmt)
1103 {
1104         /* this is for capturing 36 raw vbi lines
1105            if there's a way to cut off the beginning 2 vbi lines
1106            with the tvp5150 then the vbi line count could be lowered
1107            to 17 lines/field again, although I couldn't find a register
1108            which could do that cropping */
1109         if (fmt->sample_format == V4L2_PIX_FMT_GREY)
1110                 tvp5150_write(sd, TVP5150_LUMA_PROC_CTL_1, 0x70);
1111         if (fmt->count[0] == 18 && fmt->count[1] == 18) {
1112                 tvp5150_write(sd, TVP5150_VERT_BLANKING_START, 0x00);
1113                 tvp5150_write(sd, TVP5150_VERT_BLANKING_STOP, 0x01);
1114         }
1115         return 0;
1116 }
1117
1118 static int tvp5150_s_sliced_fmt(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_format *svbi)
1119 {
1120         int i;
1121
1122         if (svbi->service_set != 0) {
1123                 for (i = 0; i <= 23; i++) {
1124                         svbi->service_lines[1][i] = 0;
1125                         svbi->service_lines[0][i] =
1126                                 tvp5150_set_vbi(sd, svbi->service_lines[0][i],
1127                                                 0xf0, i, 3);
1128                 }
1129                 /* Enables FIFO */
1130                 tvp5150_write(sd, TVP5150_FIFO_OUT_CTRL, 1);
1131         } else {
1132                 /* Disables FIFO*/
1133                 tvp5150_write(sd, TVP5150_FIFO_OUT_CTRL, 0);
1134
1135                 /* Disable Full Field */
1136                 tvp5150_write(sd, TVP5150_FULL_FIELD_ENA, 0);
1137
1138                 /* Disable Line modes */
1139                 for (i = TVP5150_LINE_MODE_INI; i <= TVP5150_LINE_MODE_END; i++)
1140                         tvp5150_write(sd, i, 0xff);
1141         }
1142         return 0;
1143 }
1144
1145 static int tvp5150_g_sliced_fmt(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_format *svbi)
1146 {
1147         int i, mask = 0;
1148
1149         memset(svbi->service_lines, 0, sizeof(svbi->service_lines));
1150
1151         for (i = 0; i <= 23; i++) {
1152                 svbi->service_lines[0][i] =
1153                         tvp5150_get_vbi(sd, i);
1154                 mask |= svbi->service_lines[0][i];
1155         }
1156         svbi->service_set = mask;
1157         return 0;
1158 }
1159
1160 #ifdef CONFIG_VIDEO_ADV_DEBUG
1161 static int tvp5150_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg)
1162 {
1163         int res;
1164
1165         res = tvp5150_read(sd, reg->reg & 0xff);
1166         if (res < 0) {
1167                 dev_err(sd->dev, "%s: failed with error = %d\n", __func__, res);
1168                 return res;
1169         }
1170
1171         reg->val = res;
1172         reg->size = 1;
1173         return 0;
1174 }
1175
1176 static int tvp5150_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_register *reg)
1177 {
1178         return tvp5150_write(sd, reg->reg & 0xff, reg->val & 0xff);
1179 }
1180 #endif
1181
1182 static int tvp5150_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
1183 {
1184         int status = tvp5150_read(sd, 0x88);
1185
1186         vt->signal = ((status & 0x04) && (status & 0x02)) ? 0xffff : 0x0;
1187         return 0;
1188 }
1189
1190 static int tvp5150_registered(struct v4l2_subdev *sd)
1191 {
1192 #ifdef CONFIG_MEDIA_CONTROLLER
1193         struct tvp5150 *decoder = to_tvp5150(sd);
1194         int ret = 0;
1195         int i;
1196
1197         for (i = 0; i < TVP5150_INPUT_NUM; i++) {
1198                 struct media_entity *input = &decoder->input_ent[i];
1199                 struct media_pad *pad = &decoder->input_pad[i];
1200
1201                 if (!input->name)
1202                         continue;
1203
1204                 decoder->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
1205
1206                 ret = media_entity_pads_init(input, 1, pad);
1207                 if (ret < 0)
1208                         return ret;
1209
1210                 ret = media_device_register_entity(sd->v4l2_dev->mdev, input);
1211                 if (ret < 0)
1212                         return ret;
1213
1214                 ret = media_create_pad_link(input, 0, &sd->entity,
1215                                             DEMOD_PAD_IF_INPUT, 0);
1216                 if (ret < 0) {
1217                         media_device_unregister_entity(input);
1218                         return ret;
1219                 }
1220         }
1221 #endif
1222
1223         return 0;
1224 }
1225
1226 /* ----------------------------------------------------------------------- */
1227
1228 static const struct v4l2_ctrl_ops tvp5150_ctrl_ops = {
1229         .s_ctrl = tvp5150_s_ctrl,
1230 };
1231
1232 static const struct v4l2_subdev_core_ops tvp5150_core_ops = {
1233         .log_status = tvp5150_log_status,
1234         .reset = tvp5150_reset,
1235 #ifdef CONFIG_VIDEO_ADV_DEBUG
1236         .g_register = tvp5150_g_register,
1237         .s_register = tvp5150_s_register,
1238 #endif
1239 };
1240
1241 static const struct v4l2_subdev_tuner_ops tvp5150_tuner_ops = {
1242         .g_tuner = tvp5150_g_tuner,
1243 };
1244
1245 static const struct v4l2_subdev_video_ops tvp5150_video_ops = {
1246         .s_std = tvp5150_s_std,
1247         .s_stream = tvp5150_s_stream,
1248         .s_routing = tvp5150_s_routing,
1249         .g_mbus_config = tvp5150_g_mbus_config,
1250 };
1251
1252 static const struct v4l2_subdev_vbi_ops tvp5150_vbi_ops = {
1253         .g_sliced_vbi_cap = tvp5150_g_sliced_vbi_cap,
1254         .g_sliced_fmt = tvp5150_g_sliced_fmt,
1255         .s_sliced_fmt = tvp5150_s_sliced_fmt,
1256         .s_raw_fmt = tvp5150_s_raw_fmt,
1257 };
1258
1259 static const struct v4l2_subdev_pad_ops tvp5150_pad_ops = {
1260         .enum_mbus_code = tvp5150_enum_mbus_code,
1261         .enum_frame_size = tvp5150_enum_frame_size,
1262         .set_fmt = tvp5150_fill_fmt,
1263         .get_fmt = tvp5150_fill_fmt,
1264         .get_selection = tvp5150_get_selection,
1265         .set_selection = tvp5150_set_selection,
1266 };
1267
1268 static const struct v4l2_subdev_ops tvp5150_ops = {
1269         .core = &tvp5150_core_ops,
1270         .tuner = &tvp5150_tuner_ops,
1271         .video = &tvp5150_video_ops,
1272         .vbi = &tvp5150_vbi_ops,
1273         .pad = &tvp5150_pad_ops,
1274 };
1275
1276 static const struct v4l2_subdev_internal_ops tvp5150_internal_ops = {
1277         .registered = tvp5150_registered,
1278 };
1279
1280
1281 /****************************************************************************
1282                         I2C Client & Driver
1283  ****************************************************************************/
1284
1285 static int tvp5150_detect_version(struct tvp5150 *core)
1286 {
1287         struct v4l2_subdev *sd = &core->sd;
1288         struct i2c_client *c = v4l2_get_subdevdata(sd);
1289         unsigned int i;
1290         u8 regs[4];
1291         int res;
1292
1293         /*
1294          * Read consequent registers - TVP5150_MSB_DEV_ID, TVP5150_LSB_DEV_ID,
1295          * TVP5150_ROM_MAJOR_VER, TVP5150_ROM_MINOR_VER
1296          */
1297         for (i = 0; i < 4; i++) {
1298                 res = tvp5150_read(sd, TVP5150_MSB_DEV_ID + i);
1299                 if (res < 0)
1300                         return res;
1301                 regs[i] = res;
1302         }
1303
1304         core->dev_id = (regs[0] << 8) | regs[1];
1305         core->rom_ver = (regs[2] << 8) | regs[3];
1306
1307         dev_info(sd->dev, "tvp%04x (%u.%u) chip found @ 0x%02x (%s)\n",
1308                   core->dev_id, regs[2], regs[3], c->addr << 1,
1309                   c->adapter->name);
1310
1311         if (core->dev_id == 0x5150 && core->rom_ver == 0x0321) {
1312                 dev_info(sd->dev, "tvp5150a detected.\n");
1313         } else if (core->dev_id == 0x5150 && core->rom_ver == 0x0400) {
1314                 dev_info(sd->dev, "tvp5150am1 detected.\n");
1315
1316                 /* ITU-T BT.656.4 timing */
1317                 tvp5150_write(sd, TVP5150_REV_SELECT, 0);
1318         } else if (core->dev_id == 0x5151 && core->rom_ver == 0x0100) {
1319                 dev_info(sd->dev, "tvp5151 detected.\n");
1320         } else {
1321                 dev_info(sd->dev, "*** unknown tvp%04x chip detected.\n",
1322                           core->dev_id);
1323         }
1324
1325         return 0;
1326 }
1327
1328 static int tvp5150_init(struct i2c_client *c)
1329 {
1330         struct gpio_desc *pdn_gpio;
1331         struct gpio_desc *reset_gpio;
1332
1333         pdn_gpio = devm_gpiod_get_optional(&c->dev, "pdn", GPIOD_OUT_HIGH);
1334         if (IS_ERR(pdn_gpio))
1335                 return PTR_ERR(pdn_gpio);
1336
1337         if (pdn_gpio) {
1338                 gpiod_set_value_cansleep(pdn_gpio, 0);
1339                 /* Delay time between power supplies active and reset */
1340                 msleep(20);
1341         }
1342
1343         reset_gpio = devm_gpiod_get_optional(&c->dev, "reset", GPIOD_OUT_HIGH);
1344         if (IS_ERR(reset_gpio))
1345                 return PTR_ERR(reset_gpio);
1346
1347         if (reset_gpio) {
1348                 /* RESETB pulse duration */
1349                 ndelay(500);
1350                 gpiod_set_value_cansleep(reset_gpio, 0);
1351                 /* Delay time between end of reset to I2C active */
1352                 usleep_range(200, 250);
1353         }
1354
1355         return 0;
1356 }
1357
1358 static int tvp5150_parse_dt(struct tvp5150 *decoder, struct device_node *np)
1359 {
1360         struct v4l2_fwnode_endpoint bus_cfg;
1361         struct device_node *ep;
1362 #ifdef CONFIG_MEDIA_CONTROLLER
1363         struct device_node *connectors, *child;
1364         struct media_entity *input;
1365         const char *name;
1366         u32 input_type;
1367 #endif
1368         unsigned int flags;
1369         int ret = 0;
1370
1371         ep = of_graph_get_next_endpoint(np, NULL);
1372         if (!ep)
1373                 return -EINVAL;
1374
1375         ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(ep), &bus_cfg);
1376         if (ret)
1377                 goto err;
1378
1379         flags = bus_cfg.bus.parallel.flags;
1380
1381         if (bus_cfg.bus_type == V4L2_MBUS_PARALLEL &&
1382             !(flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH &&
1383               flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH &&
1384               flags & V4L2_MBUS_FIELD_EVEN_LOW)) {
1385                 ret = -EINVAL;
1386                 goto err;
1387         }
1388
1389         decoder->mbus_type = bus_cfg.bus_type;
1390
1391 #ifdef CONFIG_MEDIA_CONTROLLER
1392         connectors = of_get_child_by_name(np, "connectors");
1393
1394         if (!connectors)
1395                 goto err;
1396
1397         for_each_available_child_of_node(connectors, child) {
1398                 ret = of_property_read_u32(child, "input", &input_type);
1399                 if (ret) {
1400                         dev_err(decoder->sd.dev,
1401                                  "missing type property in node %s\n",
1402                                  child->name);
1403                         goto err_connector;
1404                 }
1405
1406                 if (input_type >= TVP5150_INPUT_NUM) {
1407                         ret = -EINVAL;
1408                         goto err_connector;
1409                 }
1410
1411                 input = &decoder->input_ent[input_type];
1412
1413                 /* Each input connector can only be defined once */
1414                 if (input->name) {
1415                         dev_err(decoder->sd.dev,
1416                                  "input %s with same type already exists\n",
1417                                  input->name);
1418                         ret = -EINVAL;
1419                         goto err_connector;
1420                 }
1421
1422                 switch (input_type) {
1423                 case TVP5150_COMPOSITE0:
1424                 case TVP5150_COMPOSITE1:
1425                         input->function = MEDIA_ENT_F_CONN_COMPOSITE;
1426                         break;
1427                 case TVP5150_SVIDEO:
1428                         input->function = MEDIA_ENT_F_CONN_SVIDEO;
1429                         break;
1430                 }
1431
1432                 input->flags = MEDIA_ENT_FL_CONNECTOR;
1433
1434                 ret = of_property_read_string(child, "label", &name);
1435                 if (ret < 0) {
1436                         dev_err(decoder->sd.dev,
1437                                  "missing label property in node %s\n",
1438                                  child->name);
1439                         goto err_connector;
1440                 }
1441
1442                 input->name = name;
1443         }
1444
1445 err_connector:
1446         of_node_put(connectors);
1447 #endif
1448 err:
1449         of_node_put(ep);
1450         return ret;
1451 }
1452
1453 static const char * const tvp5150_test_patterns[2] = {
1454         "Disabled",
1455         "Black screen"
1456 };
1457
1458 static int tvp5150_probe(struct i2c_client *c,
1459                          const struct i2c_device_id *id)
1460 {
1461         struct tvp5150 *core;
1462         struct v4l2_subdev *sd;
1463         struct device_node *np = c->dev.of_node;
1464         int res;
1465
1466         /* Check if the adapter supports the needed features */
1467         if (!i2c_check_functionality(c->adapter,
1468              I2C_FUNC_SMBUS_READ_BYTE | I2C_FUNC_SMBUS_WRITE_BYTE_DATA))
1469                 return -EIO;
1470
1471         res = tvp5150_init(c);
1472         if (res)
1473                 return res;
1474
1475         core = devm_kzalloc(&c->dev, sizeof(*core), GFP_KERNEL);
1476         if (!core)
1477                 return -ENOMEM;
1478
1479         sd = &core->sd;
1480
1481         if (IS_ENABLED(CONFIG_OF) && np) {
1482                 res = tvp5150_parse_dt(core, np);
1483                 if (res) {
1484                         dev_err(sd->dev, "DT parsing error: %d\n", res);
1485                         return res;
1486                 }
1487         } else {
1488                 /* Default to BT.656 embedded sync */
1489                 core->mbus_type = V4L2_MBUS_BT656;
1490         }
1491
1492         v4l2_i2c_subdev_init(sd, c, &tvp5150_ops);
1493         sd->internal_ops = &tvp5150_internal_ops;
1494         sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
1495
1496 #if defined(CONFIG_MEDIA_CONTROLLER)
1497         core->pads[DEMOD_PAD_IF_INPUT].flags = MEDIA_PAD_FL_SINK;
1498         core->pads[DEMOD_PAD_VID_OUT].flags = MEDIA_PAD_FL_SOURCE;
1499         core->pads[DEMOD_PAD_VBI_OUT].flags = MEDIA_PAD_FL_SOURCE;
1500
1501         sd->entity.function = MEDIA_ENT_F_ATV_DECODER;
1502
1503         res = media_entity_pads_init(&sd->entity, DEMOD_NUM_PADS, core->pads);
1504         if (res < 0)
1505                 return res;
1506
1507         sd->entity.ops = &tvp5150_sd_media_ops;
1508 #endif
1509
1510         res = tvp5150_detect_version(core);
1511         if (res < 0)
1512                 return res;
1513
1514         core->norm = V4L2_STD_ALL;      /* Default is autodetect */
1515         core->input = TVP5150_COMPOSITE1;
1516         core->enable = true;
1517
1518         v4l2_ctrl_handler_init(&core->hdl, 5);
1519         v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
1520                         V4L2_CID_BRIGHTNESS, 0, 255, 1, 128);
1521         v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
1522                         V4L2_CID_CONTRAST, 0, 255, 1, 128);
1523         v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
1524                         V4L2_CID_SATURATION, 0, 255, 1, 128);
1525         v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
1526                         V4L2_CID_HUE, -128, 127, 1, 0);
1527         v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
1528                         V4L2_CID_PIXEL_RATE, 27000000,
1529                         27000000, 1, 27000000);
1530         v4l2_ctrl_new_std_menu_items(&core->hdl, &tvp5150_ctrl_ops,
1531                                      V4L2_CID_TEST_PATTERN,
1532                                      ARRAY_SIZE(tvp5150_test_patterns),
1533                                      0, 0, tvp5150_test_patterns);
1534         sd->ctrl_handler = &core->hdl;
1535         if (core->hdl.error) {
1536                 res = core->hdl.error;
1537                 goto err;
1538         }
1539
1540         /* Default is no cropping */
1541         core->rect.top = 0;
1542         if (tvp5150_read_std(sd) & V4L2_STD_525_60)
1543                 core->rect.height = TVP5150_V_MAX_525_60;
1544         else
1545                 core->rect.height = TVP5150_V_MAX_OTHERS;
1546         core->rect.left = 0;
1547         core->rect.width = TVP5150_H_MAX;
1548
1549         tvp5150_reset(sd, 0);   /* Calls v4l2_ctrl_handler_setup() */
1550
1551         res = v4l2_async_register_subdev(sd);
1552         if (res < 0)
1553                 goto err;
1554
1555         if (debug > 1)
1556                 tvp5150_log_status(sd);
1557         return 0;
1558
1559 err:
1560         v4l2_ctrl_handler_free(&core->hdl);
1561         return res;
1562 }
1563
1564 static int tvp5150_remove(struct i2c_client *c)
1565 {
1566         struct v4l2_subdev *sd = i2c_get_clientdata(c);
1567         struct tvp5150 *decoder = to_tvp5150(sd);
1568
1569         dev_dbg_lvl(sd->dev, 1, debug,
1570                 "tvp5150.c: removing tvp5150 adapter on address 0x%x\n",
1571                 c->addr << 1);
1572
1573         v4l2_async_unregister_subdev(sd);
1574         v4l2_ctrl_handler_free(&decoder->hdl);
1575         return 0;
1576 }
1577
1578 /* ----------------------------------------------------------------------- */
1579
1580 static const struct i2c_device_id tvp5150_id[] = {
1581         { "tvp5150", 0 },
1582         { }
1583 };
1584 MODULE_DEVICE_TABLE(i2c, tvp5150_id);
1585
1586 #if IS_ENABLED(CONFIG_OF)
1587 static const struct of_device_id tvp5150_of_match[] = {
1588         { .compatible = "ti,tvp5150", },
1589         { /* sentinel */ },
1590 };
1591 MODULE_DEVICE_TABLE(of, tvp5150_of_match);
1592 #endif
1593
1594 static struct i2c_driver tvp5150_driver = {
1595         .driver = {
1596                 .of_match_table = of_match_ptr(tvp5150_of_match),
1597                 .name   = "tvp5150",
1598         },
1599         .probe          = tvp5150_probe,
1600         .remove         = tvp5150_remove,
1601         .id_table       = tvp5150_id,
1602 };
1603
1604 module_i2c_driver(tvp5150_driver);