linux/drivers/media/i2c/tvp5150.c
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   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
  31MODULE_DESCRIPTION("Texas Instruments TVP5150A/TVP5150AM1/TVP5151 video decoder driver");
  32MODULE_AUTHOR("Mauro Carvalho Chehab");
  33MODULE_LICENSE("GPL");
  34
  35
  36static int debug;
  37module_param(debug, int, 0644);
  38MODULE_PARM_DESC(debug, "Debug level (0-2)");
  39
  40#define dprintk0(__dev, __arg...) dev_dbg_lvl(__dev, 0, 0, __arg)
  41
  42struct 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
  63static inline struct tvp5150 *to_tvp5150(struct v4l2_subdev *sd)
  64{
  65        return container_of(sd, struct tvp5150, sd);
  66}
  67
  68static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
  69{
  70        return &container_of(ctrl->handler, struct tvp5150, hdl)->sd;
  71}
  72
  73static 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
  89static 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
 103static 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
 124static 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
 262static 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
 315struct i2c_reg_value {
 316        unsigned char reg;
 317        unsigned char value;
 318};
 319
 320/* Default values as sugested at TVP5150AM1 datasheet */
 321static 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 */
 457static 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
 484struct 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
 491struct 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
 504static 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        {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        {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        {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        {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        {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        {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        {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        {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        {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        {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        {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        {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        {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        /* End of struct */
 582        { (u16)-1 }
 583};
 584
 585static int tvp5150_write_inittab(struct v4l2_subdev *sd,
 586                                const struct i2c_reg_value *regs)
 587{
 588        while (regs->reg != 0xff) {
 589                tvp5150_write(sd, regs->reg, regs->value);
 590                regs++;
 591        }
 592        return 0;
 593}
 594
 595static int tvp5150_vdp_init(struct v4l2_subdev *sd,
 596                                const struct i2c_vbi_ram_value *regs)
 597{
 598        unsigned int i;
 599
 600        /* Disable Full Field */
 601        tvp5150_write(sd, TVP5150_FULL_FIELD_ENA, 0);
 602
 603        /* Before programming, Line mode should be at 0xff */
 604        for (i = TVP5150_LINE_MODE_INI; i <= TVP5150_LINE_MODE_END; i++)
 605                tvp5150_write(sd, i, 0xff);
 606
 607        /* Load Ram Table */
 608        while (regs->reg != (u16)-1) {
 609                tvp5150_write(sd, TVP5150_CONF_RAM_ADDR_HIGH, regs->reg >> 8);
 610                tvp5150_write(sd, TVP5150_CONF_RAM_ADDR_LOW, regs->reg);
 611
 612                for (i = 0; i < 16; i++)
 613                        tvp5150_write(sd, TVP5150_VDP_CONF_RAM_DATA, regs->values[i]);
 614
 615                regs++;
 616        }
 617        return 0;
 618}
 619
 620/* Fills VBI capabilities based on i2c_vbi_ram_value struct */
 621static int tvp5150_g_sliced_vbi_cap(struct v4l2_subdev *sd,
 622                                struct v4l2_sliced_vbi_cap *cap)
 623{
 624        const struct i2c_vbi_ram_value *regs = vbi_ram_default;
 625        int line;
 626
 627        dev_dbg_lvl(sd->dev, 1, debug, "g_sliced_vbi_cap\n");
 628        memset(cap, 0, sizeof *cap);
 629
 630        while (regs->reg != (u16)-1 ) {
 631                for (line=regs->type.ini_line;line<=regs->type.end_line;line++) {
 632                        cap->service_lines[0][line] |= regs->type.vbi_type;
 633                }
 634                cap->service_set |= regs->type.vbi_type;
 635
 636                regs++;
 637        }
 638        return 0;
 639}
 640
 641/* Set vbi processing
 642 * type - one of tvp5150_vbi_types
 643 * line - line to gather data
 644 * fields: bit 0 field1, bit 1, field2
 645 * flags (default=0xf0) is a bitmask, were set means:
 646 *      bit 7: enable filtering null bytes on CC
 647 *      bit 6: send data also to FIFO
 648 *      bit 5: don't allow data with errors on FIFO
 649 *      bit 4: enable ECC when possible
 650 * pix_align = pix alignment:
 651 *      LSB = field1
 652 *      MSB = field2
 653 */
 654static int tvp5150_set_vbi(struct v4l2_subdev *sd,
 655                        const struct i2c_vbi_ram_value *regs,
 656                        unsigned int type,u8 flags, int line,
 657                        const int fields)
 658{
 659        struct tvp5150 *decoder = to_tvp5150(sd);
 660        v4l2_std_id std = decoder->norm;
 661        u8 reg;
 662        int pos = 0;
 663
 664        if (std == V4L2_STD_ALL) {
 665                dev_err(sd->dev, "VBI can't be configured without knowing number of lines\n");
 666                return 0;
 667        } else if (std & V4L2_STD_625_50) {
 668                /* Don't follow NTSC Line number convension */
 669                line += 3;
 670        }
 671
 672        if (line < 6 || line > 27)
 673                return 0;
 674
 675        while (regs->reg != (u16)-1) {
 676                if ((type & regs->type.vbi_type) &&
 677                    (line >= regs->type.ini_line) &&
 678                    (line <= regs->type.end_line))
 679                        break;
 680
 681                regs++;
 682                pos++;
 683        }
 684
 685        if (regs->reg == (u16)-1)
 686                return 0;
 687
 688        type = pos | (flags & 0xf0);
 689        reg = ((line - 6) << 1) + TVP5150_LINE_MODE_INI;
 690
 691        if (fields & 1)
 692                tvp5150_write(sd, reg, type);
 693
 694        if (fields & 2)
 695                tvp5150_write(sd, reg + 1, type);
 696
 697        return type;
 698}
 699
 700static int tvp5150_get_vbi(struct v4l2_subdev *sd,
 701                        const struct i2c_vbi_ram_value *regs, int line)
 702{
 703        struct tvp5150 *decoder = to_tvp5150(sd);
 704        v4l2_std_id std = decoder->norm;
 705        u8 reg;
 706        int pos, type = 0;
 707        int i, ret = 0;
 708
 709        if (std == V4L2_STD_ALL) {
 710                dev_err(sd->dev, "VBI can't be configured without knowing number of lines\n");
 711                return 0;
 712        } else if (std & V4L2_STD_625_50) {
 713                /* Don't follow NTSC Line number convension */
 714                line += 3;
 715        }
 716
 717        if (line < 6 || line > 27)
 718                return 0;
 719
 720        reg = ((line - 6) << 1) + TVP5150_LINE_MODE_INI;
 721
 722        for (i = 0; i <= 1; i++) {
 723                ret = tvp5150_read(sd, reg + i);
 724                if (ret < 0) {
 725                        dev_err(sd->dev, "%s: failed with error = %d\n",
 726                                 __func__, ret);
 727                        return 0;
 728                }
 729                pos = ret & 0x0f;
 730                if (pos < 0x0f)
 731                        type |= regs[pos].type.vbi_type;
 732        }
 733
 734        return type;
 735}
 736
 737static int tvp5150_set_std(struct v4l2_subdev *sd, v4l2_std_id std)
 738{
 739        struct tvp5150 *decoder = to_tvp5150(sd);
 740        int fmt = 0;
 741
 742        decoder->norm = std;
 743
 744        /* First tests should be against specific std */
 745
 746        if (std == V4L2_STD_NTSC_443) {
 747                fmt = VIDEO_STD_NTSC_4_43_BIT;
 748        } else if (std == V4L2_STD_PAL_M) {
 749                fmt = VIDEO_STD_PAL_M_BIT;
 750        } else if (std == V4L2_STD_PAL_N || std == V4L2_STD_PAL_Nc) {
 751                fmt = VIDEO_STD_PAL_COMBINATION_N_BIT;
 752        } else {
 753                /* Then, test against generic ones */
 754                if (std & V4L2_STD_NTSC)
 755                        fmt = VIDEO_STD_NTSC_MJ_BIT;
 756                else if (std & V4L2_STD_PAL)
 757                        fmt = VIDEO_STD_PAL_BDGHIN_BIT;
 758                else if (std & V4L2_STD_SECAM)
 759                        fmt = VIDEO_STD_SECAM_BIT;
 760        }
 761
 762        dev_dbg_lvl(sd->dev, 1, debug, "Set video std register to %d.\n", fmt);
 763        tvp5150_write(sd, TVP5150_VIDEO_STD, fmt);
 764        return 0;
 765}
 766
 767static int tvp5150_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
 768{
 769        struct tvp5150 *decoder = to_tvp5150(sd);
 770
 771        if (decoder->norm == std)
 772                return 0;
 773
 774        /* Change cropping height limits */
 775        if (std & V4L2_STD_525_60)
 776                decoder->rect.height = TVP5150_V_MAX_525_60;
 777        else
 778                decoder->rect.height = TVP5150_V_MAX_OTHERS;
 779
 780
 781        return tvp5150_set_std(sd, std);
 782}
 783
 784static int tvp5150_reset(struct v4l2_subdev *sd, u32 val)
 785{
 786        struct tvp5150 *decoder = to_tvp5150(sd);
 787
 788        /* Initializes TVP5150 to its default values */
 789        tvp5150_write_inittab(sd, tvp5150_init_default);
 790
 791        /* Initializes VDP registers */
 792        tvp5150_vdp_init(sd, vbi_ram_default);
 793
 794        /* Selects decoder input */
 795        tvp5150_selmux(sd);
 796
 797        /* Initializes TVP5150 to stream enabled values */
 798        tvp5150_write_inittab(sd, tvp5150_init_enable);
 799
 800        /* Initialize image preferences */
 801        v4l2_ctrl_handler_setup(&decoder->hdl);
 802
 803        tvp5150_set_std(sd, decoder->norm);
 804
 805        if (decoder->mbus_type == V4L2_MBUS_PARALLEL)
 806                tvp5150_write(sd, TVP5150_DATA_RATE_SEL, 0x40);
 807
 808        return 0;
 809};
 810
 811static int tvp5150_s_ctrl(struct v4l2_ctrl *ctrl)
 812{
 813        struct v4l2_subdev *sd = to_sd(ctrl);
 814        struct tvp5150 *decoder = to_tvp5150(sd);
 815
 816        switch (ctrl->id) {
 817        case V4L2_CID_BRIGHTNESS:
 818                tvp5150_write(sd, TVP5150_BRIGHT_CTL, ctrl->val);
 819                return 0;
 820        case V4L2_CID_CONTRAST:
 821                tvp5150_write(sd, TVP5150_CONTRAST_CTL, ctrl->val);
 822                return 0;
 823        case V4L2_CID_SATURATION:
 824                tvp5150_write(sd, TVP5150_SATURATION_CTL, ctrl->val);
 825                return 0;
 826        case V4L2_CID_HUE:
 827                tvp5150_write(sd, TVP5150_HUE_CTL, ctrl->val);
 828                break;
 829        case V4L2_CID_TEST_PATTERN:
 830                decoder->enable = ctrl->val ? false : true;
 831                tvp5150_selmux(sd);
 832                return 0;
 833        }
 834        return -EINVAL;
 835}
 836
 837static v4l2_std_id tvp5150_read_std(struct v4l2_subdev *sd)
 838{
 839        int val = tvp5150_read(sd, TVP5150_STATUS_REG_5);
 840
 841        switch (val & 0x0F) {
 842        case 0x01:
 843                return V4L2_STD_NTSC;
 844        case 0x03:
 845                return V4L2_STD_PAL;
 846        case 0x05:
 847                return V4L2_STD_PAL_M;
 848        case 0x07:
 849                return V4L2_STD_PAL_N | V4L2_STD_PAL_Nc;
 850        case 0x09:
 851                return V4L2_STD_NTSC_443;
 852        case 0xb:
 853                return V4L2_STD_SECAM;
 854        default:
 855                return V4L2_STD_UNKNOWN;
 856        }
 857}
 858
 859static int tvp5150_fill_fmt(struct v4l2_subdev *sd,
 860                struct v4l2_subdev_pad_config *cfg,
 861                struct v4l2_subdev_format *format)
 862{
 863        struct v4l2_mbus_framefmt *f;
 864        struct tvp5150 *decoder = to_tvp5150(sd);
 865
 866        if (!format || (format->pad != DEMOD_PAD_VID_OUT))
 867                return -EINVAL;
 868
 869        f = &format->format;
 870
 871        f->width = decoder->rect.width;
 872        f->height = decoder->rect.height;
 873
 874        f->code = MEDIA_BUS_FMT_UYVY8_2X8;
 875        f->field = V4L2_FIELD_ALTERNATE;
 876        f->colorspace = V4L2_COLORSPACE_SMPTE170M;
 877
 878        dev_dbg_lvl(sd->dev, 1, debug, "width = %d, height = %d\n", f->width,
 879                        f->height);
 880        return 0;
 881}
 882
 883static int tvp5150_set_selection(struct v4l2_subdev *sd,
 884                                 struct v4l2_subdev_pad_config *cfg,
 885                                 struct v4l2_subdev_selection *sel)
 886{
 887        struct tvp5150 *decoder = to_tvp5150(sd);
 888        struct v4l2_rect rect = sel->r;
 889        v4l2_std_id std;
 890        int hmax;
 891
 892        if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE ||
 893            sel->target != V4L2_SEL_TGT_CROP)
 894                return -EINVAL;
 895
 896        dev_dbg_lvl(sd->dev, 1, debug, "%s left=%d, top=%d, width=%d, height=%d\n",
 897                __func__, rect.left, rect.top, rect.width, rect.height);
 898
 899        /* tvp5150 has some special limits */
 900        rect.left = clamp(rect.left, 0, TVP5150_MAX_CROP_LEFT);
 901        rect.width = clamp_t(unsigned int, rect.width,
 902                             TVP5150_H_MAX - TVP5150_MAX_CROP_LEFT - rect.left,
 903                             TVP5150_H_MAX - rect.left);
 904        rect.top = clamp(rect.top, 0, TVP5150_MAX_CROP_TOP);
 905
 906        /* Calculate height based on current standard */
 907        if (decoder->norm == V4L2_STD_ALL)
 908                std = tvp5150_read_std(sd);
 909        else
 910                std = decoder->norm;
 911
 912        if (std & V4L2_STD_525_60)
 913                hmax = TVP5150_V_MAX_525_60;
 914        else
 915                hmax = TVP5150_V_MAX_OTHERS;
 916
 917        rect.height = clamp_t(unsigned int, rect.height,
 918                              hmax - TVP5150_MAX_CROP_TOP - rect.top,
 919                              hmax - rect.top);
 920
 921        tvp5150_write(sd, TVP5150_VERT_BLANKING_START, rect.top);
 922        tvp5150_write(sd, TVP5150_VERT_BLANKING_STOP,
 923                      rect.top + rect.height - hmax);
 924        tvp5150_write(sd, TVP5150_ACT_VD_CROP_ST_MSB,
 925                      rect.left >> TVP5150_CROP_SHIFT);
 926        tvp5150_write(sd, TVP5150_ACT_VD_CROP_ST_LSB,
 927                      rect.left | (1 << TVP5150_CROP_SHIFT));
 928        tvp5150_write(sd, TVP5150_ACT_VD_CROP_STP_MSB,
 929                      (rect.left + rect.width - TVP5150_MAX_CROP_LEFT) >>
 930                      TVP5150_CROP_SHIFT);
 931        tvp5150_write(sd, TVP5150_ACT_VD_CROP_STP_LSB,
 932                      rect.left + rect.width - TVP5150_MAX_CROP_LEFT);
 933
 934        decoder->rect = rect;
 935
 936        return 0;
 937}
 938
 939static int tvp5150_get_selection(struct v4l2_subdev *sd,
 940                                 struct v4l2_subdev_pad_config *cfg,
 941                                 struct v4l2_subdev_selection *sel)
 942{
 943        struct tvp5150 *decoder = container_of(sd, struct tvp5150, sd);
 944        v4l2_std_id std;
 945
 946        if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE)
 947                return -EINVAL;
 948
 949        switch (sel->target) {
 950        case V4L2_SEL_TGT_CROP_BOUNDS:
 951        case V4L2_SEL_TGT_CROP_DEFAULT:
 952                sel->r.left = 0;
 953                sel->r.top = 0;
 954                sel->r.width = TVP5150_H_MAX;
 955
 956                /* Calculate height based on current standard */
 957                if (decoder->norm == V4L2_STD_ALL)
 958                        std = tvp5150_read_std(sd);
 959                else
 960                        std = decoder->norm;
 961                if (std & V4L2_STD_525_60)
 962                        sel->r.height = TVP5150_V_MAX_525_60;
 963                else
 964                        sel->r.height = TVP5150_V_MAX_OTHERS;
 965                return 0;
 966        case V4L2_SEL_TGT_CROP:
 967                sel->r = decoder->rect;
 968                return 0;
 969        default:
 970                return -EINVAL;
 971        }
 972}
 973
 974static int tvp5150_g_mbus_config(struct v4l2_subdev *sd,
 975                                 struct v4l2_mbus_config *cfg)
 976{
 977        struct tvp5150 *decoder = to_tvp5150(sd);
 978
 979        cfg->type = decoder->mbus_type;
 980        cfg->flags = V4L2_MBUS_MASTER | V4L2_MBUS_PCLK_SAMPLE_RISING
 981                   | V4L2_MBUS_FIELD_EVEN_LOW | V4L2_MBUS_DATA_ACTIVE_HIGH;
 982
 983        return 0;
 984}
 985
 986/****************************************************************************
 987                        V4L2 subdev pad ops
 988 ****************************************************************************/
 989static int tvp5150_enum_mbus_code(struct v4l2_subdev *sd,
 990                struct v4l2_subdev_pad_config *cfg,
 991                struct v4l2_subdev_mbus_code_enum *code)
 992{
 993        if (code->pad || code->index)
 994                return -EINVAL;
 995
 996        code->code = MEDIA_BUS_FMT_UYVY8_2X8;
 997        return 0;
 998}
 999
1000static int tvp5150_enum_frame_size(struct v4l2_subdev *sd,
1001                                   struct v4l2_subdev_pad_config *cfg,
1002                                   struct v4l2_subdev_frame_size_enum *fse)
1003{
1004        struct tvp5150 *decoder = to_tvp5150(sd);
1005
1006        if (fse->index >= 8 || fse->code != MEDIA_BUS_FMT_UYVY8_2X8)
1007                return -EINVAL;
1008
1009        fse->code = MEDIA_BUS_FMT_UYVY8_2X8;
1010        fse->min_width = decoder->rect.width;
1011        fse->max_width = decoder->rect.width;
1012        fse->min_height = decoder->rect.height / 2;
1013        fse->max_height = decoder->rect.height / 2;
1014
1015        return 0;
1016}
1017
1018/****************************************************************************
1019                        Media entity ops
1020 ****************************************************************************/
1021
1022#ifdef CONFIG_MEDIA_CONTROLLER
1023static int tvp5150_link_setup(struct media_entity *entity,
1024                              const struct media_pad *local,
1025                              const struct media_pad *remote, u32 flags)
1026{
1027        struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity);
1028        struct tvp5150 *decoder = to_tvp5150(sd);
1029        int i;
1030
1031        for (i = 0; i < TVP5150_INPUT_NUM; i++) {
1032                if (remote->entity == &decoder->input_ent[i])
1033                        break;
1034        }
1035
1036        /* Do nothing for entities that are not input connectors */
1037        if (i == TVP5150_INPUT_NUM)
1038                return 0;
1039
1040        decoder->input = i;
1041
1042        tvp5150_selmux(sd);
1043
1044        return 0;
1045}
1046
1047static const struct media_entity_operations tvp5150_sd_media_ops = {
1048        .link_setup = tvp5150_link_setup,
1049};
1050#endif
1051
1052/****************************************************************************
1053                        I2C Command
1054 ****************************************************************************/
1055
1056static int tvp5150_s_stream(struct v4l2_subdev *sd, int enable)
1057{
1058        struct tvp5150 *decoder = to_tvp5150(sd);
1059        int val;
1060
1061        /* Enable or disable the video output signals. */
1062        val = tvp5150_read(sd, TVP5150_MISC_CTL);
1063        if (val < 0)
1064                return val;
1065
1066        val &= ~(TVP5150_MISC_CTL_YCBCR_OE | TVP5150_MISC_CTL_SYNC_OE |
1067                 TVP5150_MISC_CTL_CLOCK_OE);
1068
1069        if (enable) {
1070                /*
1071                 * Enable the YCbCr and clock outputs. In discrete sync mode
1072                 * (non-BT.656) additionally enable the the sync outputs.
1073                 */
1074                val |= TVP5150_MISC_CTL_YCBCR_OE | TVP5150_MISC_CTL_CLOCK_OE;
1075                if (decoder->mbus_type == V4L2_MBUS_PARALLEL)
1076                        val |= TVP5150_MISC_CTL_SYNC_OE;
1077        }
1078
1079        tvp5150_write(sd, TVP5150_MISC_CTL, val);
1080
1081        return 0;
1082}
1083
1084static int tvp5150_s_routing(struct v4l2_subdev *sd,
1085                             u32 input, u32 output, u32 config)
1086{
1087        struct tvp5150 *decoder = to_tvp5150(sd);
1088
1089        decoder->input = input;
1090        decoder->output = output;
1091
1092        if (output == TVP5150_BLACK_SCREEN)
1093                decoder->enable = false;
1094        else
1095                decoder->enable = true;
1096
1097        tvp5150_selmux(sd);
1098        return 0;
1099}
1100
1101static int tvp5150_s_raw_fmt(struct v4l2_subdev *sd, struct v4l2_vbi_format *fmt)
1102{
1103        /* this is for capturing 36 raw vbi lines
1104           if there's a way to cut off the beginning 2 vbi lines
1105           with the tvp5150 then the vbi line count could be lowered
1106           to 17 lines/field again, although I couldn't find a register
1107           which could do that cropping */
1108        if (fmt->sample_format == V4L2_PIX_FMT_GREY)
1109                tvp5150_write(sd, TVP5150_LUMA_PROC_CTL_1, 0x70);
1110        if (fmt->count[0] == 18 && fmt->count[1] == 18) {
1111                tvp5150_write(sd, TVP5150_VERT_BLANKING_START, 0x00);
1112                tvp5150_write(sd, TVP5150_VERT_BLANKING_STOP, 0x01);
1113        }
1114        return 0;
1115}
1116
1117static int tvp5150_s_sliced_fmt(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_format *svbi)
1118{
1119        int i;
1120
1121        if (svbi->service_set != 0) {
1122                for (i = 0; i <= 23; i++) {
1123                        svbi->service_lines[1][i] = 0;
1124                        svbi->service_lines[0][i] =
1125                                tvp5150_set_vbi(sd, vbi_ram_default,
1126                                       svbi->service_lines[0][i], 0xf0, i, 3);
1127                }
1128                /* Enables FIFO */
1129                tvp5150_write(sd, TVP5150_FIFO_OUT_CTRL, 1);
1130        } else {
1131                /* Disables FIFO*/
1132                tvp5150_write(sd, TVP5150_FIFO_OUT_CTRL, 0);
1133
1134                /* Disable Full Field */
1135                tvp5150_write(sd, TVP5150_FULL_FIELD_ENA, 0);
1136
1137                /* Disable Line modes */
1138                for (i = TVP5150_LINE_MODE_INI; i <= TVP5150_LINE_MODE_END; i++)
1139                        tvp5150_write(sd, i, 0xff);
1140        }
1141        return 0;
1142}
1143
1144static int tvp5150_g_sliced_fmt(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_format *svbi)
1145{
1146        int i, mask = 0;
1147
1148        memset(svbi->service_lines, 0, sizeof(svbi->service_lines));
1149
1150        for (i = 0; i <= 23; i++) {
1151                svbi->service_lines[0][i] =
1152                        tvp5150_get_vbi(sd, vbi_ram_default, i);
1153                mask |= svbi->service_lines[0][i];
1154        }
1155        svbi->service_set = mask;
1156        return 0;
1157}
1158
1159#ifdef CONFIG_VIDEO_ADV_DEBUG
1160static int tvp5150_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg)
1161{
1162        int res;
1163
1164        res = tvp5150_read(sd, reg->reg & 0xff);
1165        if (res < 0) {
1166                dev_err(sd->dev, "%s: failed with error = %d\n", __func__, res);
1167                return res;
1168        }
1169
1170        reg->val = res;
1171        reg->size = 1;
1172        return 0;
1173}
1174
1175static int tvp5150_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_register *reg)
1176{
1177        return tvp5150_write(sd, reg->reg & 0xff, reg->val & 0xff);
1178}
1179#endif
1180
1181static int tvp5150_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
1182{
1183        int status = tvp5150_read(sd, 0x88);
1184
1185        vt->signal = ((status & 0x04) && (status & 0x02)) ? 0xffff : 0x0;
1186        return 0;
1187}
1188
1189static int tvp5150_registered(struct v4l2_subdev *sd)
1190{
1191#ifdef CONFIG_MEDIA_CONTROLLER
1192        struct tvp5150 *decoder = to_tvp5150(sd);
1193        int ret = 0;
1194        int i;
1195
1196        for (i = 0; i < TVP5150_INPUT_NUM; i++) {
1197                struct media_entity *input = &decoder->input_ent[i];
1198                struct media_pad *pad = &decoder->input_pad[i];
1199
1200                if (!input->name)
1201                        continue;
1202
1203                decoder->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
1204
1205                ret = media_entity_pads_init(input, 1, pad);
1206                if (ret < 0)
1207                        return ret;
1208
1209                ret = media_device_register_entity(sd->v4l2_dev->mdev, input);
1210                if (ret < 0)
1211                        return ret;
1212
1213                ret = media_create_pad_link(input, 0, &sd->entity,
1214                                            DEMOD_PAD_IF_INPUT, 0);
1215                if (ret < 0) {
1216                        media_device_unregister_entity(input);
1217                        return ret;
1218                }
1219        }
1220#endif
1221
1222        return 0;
1223}
1224
1225/* ----------------------------------------------------------------------- */
1226
1227static const struct v4l2_ctrl_ops tvp5150_ctrl_ops = {
1228        .s_ctrl = tvp5150_s_ctrl,
1229};
1230
1231static const struct v4l2_subdev_core_ops tvp5150_core_ops = {
1232        .log_status = tvp5150_log_status,
1233        .reset = tvp5150_reset,
1234#ifdef CONFIG_VIDEO_ADV_DEBUG
1235        .g_register = tvp5150_g_register,
1236        .s_register = tvp5150_s_register,
1237#endif
1238};
1239
1240static const struct v4l2_subdev_tuner_ops tvp5150_tuner_ops = {
1241        .g_tuner = tvp5150_g_tuner,
1242};
1243
1244static const struct v4l2_subdev_video_ops tvp5150_video_ops = {
1245        .s_std = tvp5150_s_std,
1246        .s_stream = tvp5150_s_stream,
1247        .s_routing = tvp5150_s_routing,
1248        .g_mbus_config = tvp5150_g_mbus_config,
1249};
1250
1251static const struct v4l2_subdev_vbi_ops tvp5150_vbi_ops = {
1252        .g_sliced_vbi_cap = tvp5150_g_sliced_vbi_cap,
1253        .g_sliced_fmt = tvp5150_g_sliced_fmt,
1254        .s_sliced_fmt = tvp5150_s_sliced_fmt,
1255        .s_raw_fmt = tvp5150_s_raw_fmt,
1256};
1257
1258static const struct v4l2_subdev_pad_ops tvp5150_pad_ops = {
1259        .enum_mbus_code = tvp5150_enum_mbus_code,
1260        .enum_frame_size = tvp5150_enum_frame_size,
1261        .set_fmt = tvp5150_fill_fmt,
1262        .get_fmt = tvp5150_fill_fmt,
1263        .get_selection = tvp5150_get_selection,
1264        .set_selection = tvp5150_set_selection,
1265};
1266
1267static const struct v4l2_subdev_ops tvp5150_ops = {
1268        .core = &tvp5150_core_ops,
1269        .tuner = &tvp5150_tuner_ops,
1270        .video = &tvp5150_video_ops,
1271        .vbi = &tvp5150_vbi_ops,
1272        .pad = &tvp5150_pad_ops,
1273};
1274
1275static const struct v4l2_subdev_internal_ops tvp5150_internal_ops = {
1276        .registered = tvp5150_registered,
1277};
1278
1279
1280/****************************************************************************
1281                        I2C Client & Driver
1282 ****************************************************************************/
1283
1284static int tvp5150_detect_version(struct tvp5150 *core)
1285{
1286        struct v4l2_subdev *sd = &core->sd;
1287        struct i2c_client *c = v4l2_get_subdevdata(sd);
1288        unsigned int i;
1289        u8 regs[4];
1290        int res;
1291
1292        /*
1293         * Read consequent registers - TVP5150_MSB_DEV_ID, TVP5150_LSB_DEV_ID,
1294         * TVP5150_ROM_MAJOR_VER, TVP5150_ROM_MINOR_VER
1295         */
1296        for (i = 0; i < 4; i++) {
1297                res = tvp5150_read(sd, TVP5150_MSB_DEV_ID + i);
1298                if (res < 0)
1299                        return res;
1300                regs[i] = res;
1301        }
1302
1303        core->dev_id = (regs[0] << 8) | regs[1];
1304        core->rom_ver = (regs[2] << 8) | regs[3];
1305
1306        dev_info(sd->dev, "tvp%04x (%u.%u) chip found @ 0x%02x (%s)\n",
1307                  core->dev_id, regs[2], regs[3], c->addr << 1,
1308                  c->adapter->name);
1309
1310        if (core->dev_id == 0x5150 && core->rom_ver == 0x0321) {
1311                dev_info(sd->dev, "tvp5150a detected.\n");
1312        } else if (core->dev_id == 0x5150 && core->rom_ver == 0x0400) {
1313                dev_info(sd->dev, "tvp5150am1 detected.\n");
1314
1315                /* ITU-T BT.656.4 timing */
1316                tvp5150_write(sd, TVP5150_REV_SELECT, 0);
1317        } else if (core->dev_id == 0x5151 && core->rom_ver == 0x0100) {
1318                dev_info(sd->dev, "tvp5151 detected.\n");
1319        } else {
1320                dev_info(sd->dev, "*** unknown tvp%04x chip detected.\n",
1321                          core->dev_id);
1322        }
1323
1324        return 0;
1325}
1326
1327static int tvp5150_init(struct i2c_client *c)
1328{
1329        struct gpio_desc *pdn_gpio;
1330        struct gpio_desc *reset_gpio;
1331
1332        pdn_gpio = devm_gpiod_get_optional(&c->dev, "pdn", GPIOD_OUT_HIGH);
1333        if (IS_ERR(pdn_gpio))
1334                return PTR_ERR(pdn_gpio);
1335
1336        if (pdn_gpio) {
1337                gpiod_set_value_cansleep(pdn_gpio, 0);
1338                /* Delay time between power supplies active and reset */
1339                msleep(20);
1340        }
1341
1342        reset_gpio = devm_gpiod_get_optional(&c->dev, "reset", GPIOD_OUT_HIGH);
1343        if (IS_ERR(reset_gpio))
1344                return PTR_ERR(reset_gpio);
1345
1346        if (reset_gpio) {
1347                /* RESETB pulse duration */
1348                ndelay(500);
1349                gpiod_set_value_cansleep(reset_gpio, 0);
1350                /* Delay time between end of reset to I2C active */
1351                usleep_range(200, 250);
1352        }
1353
1354        return 0;
1355}
1356
1357static int tvp5150_parse_dt(struct tvp5150 *decoder, struct device_node *np)
1358{
1359        struct v4l2_fwnode_endpoint bus_cfg;
1360        struct device_node *ep;
1361#ifdef CONFIG_MEDIA_CONTROLLER
1362        struct device_node *connectors, *child;
1363        struct media_entity *input;
1364        const char *name;
1365        u32 input_type;
1366#endif
1367        unsigned int flags;
1368        int ret = 0;
1369
1370        ep = of_graph_get_next_endpoint(np, NULL);
1371        if (!ep)
1372                return -EINVAL;
1373
1374        ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(ep), &bus_cfg);
1375        if (ret)
1376                goto err;
1377
1378        flags = bus_cfg.bus.parallel.flags;
1379
1380        if (bus_cfg.bus_type == V4L2_MBUS_PARALLEL &&
1381            !(flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH &&
1382              flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH &&
1383              flags & V4L2_MBUS_FIELD_EVEN_LOW)) {
1384                ret = -EINVAL;
1385                goto err;
1386        }
1387
1388        decoder->mbus_type = bus_cfg.bus_type;
1389
1390#ifdef CONFIG_MEDIA_CONTROLLER
1391        connectors = of_get_child_by_name(np, "connectors");
1392
1393        if (!connectors)
1394                goto err;
1395
1396        for_each_available_child_of_node(connectors, child) {
1397                ret = of_property_read_u32(child, "input", &input_type);
1398                if (ret) {
1399                        dev_err(decoder->sd.dev,
1400                                 "missing type property in node %s\n",
1401                                 child->name);
1402                        goto err_connector;
1403                }
1404
1405                if (input_type >= TVP5150_INPUT_NUM) {
1406                        ret = -EINVAL;
1407                        goto err_connector;
1408                }
1409
1410                input = &decoder->input_ent[input_type];
1411
1412                /* Each input connector can only be defined once */
1413                if (input->name) {
1414                        dev_err(decoder->sd.dev,
1415                                 "input %s with same type already exists\n",
1416                                 input->name);
1417                        ret = -EINVAL;
1418                        goto err_connector;
1419                }
1420
1421                switch (input_type) {
1422                case TVP5150_COMPOSITE0:
1423                case TVP5150_COMPOSITE1:
1424                        input->function = MEDIA_ENT_F_CONN_COMPOSITE;
1425                        break;
1426                case TVP5150_SVIDEO:
1427                        input->function = MEDIA_ENT_F_CONN_SVIDEO;
1428                        break;
1429                }
1430
1431                input->flags = MEDIA_ENT_FL_CONNECTOR;
1432
1433                ret = of_property_read_string(child, "label", &name);
1434                if (ret < 0) {
1435                        dev_err(decoder->sd.dev,
1436                                 "missing label property in node %s\n",
1437                                 child->name);
1438                        goto err_connector;
1439                }
1440
1441                input->name = name;
1442        }
1443
1444err_connector:
1445        of_node_put(connectors);
1446#endif
1447err:
1448        of_node_put(ep);
1449        return ret;
1450}
1451
1452static const char * const tvp5150_test_patterns[2] = {
1453        "Disabled",
1454        "Black screen"
1455};
1456
1457static int tvp5150_probe(struct i2c_client *c,
1458                         const struct i2c_device_id *id)
1459{
1460        struct tvp5150 *core;
1461        struct v4l2_subdev *sd;
1462        struct device_node *np = c->dev.of_node;
1463        int res;
1464
1465        /* Check if the adapter supports the needed features */
1466        if (!i2c_check_functionality(c->adapter,
1467             I2C_FUNC_SMBUS_READ_BYTE | I2C_FUNC_SMBUS_WRITE_BYTE_DATA))
1468                return -EIO;
1469
1470        res = tvp5150_init(c);
1471        if (res)
1472                return res;
1473
1474        core = devm_kzalloc(&c->dev, sizeof(*core), GFP_KERNEL);
1475        if (!core)
1476                return -ENOMEM;
1477
1478        sd = &core->sd;
1479
1480        if (IS_ENABLED(CONFIG_OF) && np) {
1481                res = tvp5150_parse_dt(core, np);
1482                if (res) {
1483                        dev_err(sd->dev, "DT parsing error: %d\n", res);
1484                        return res;
1485                }
1486        } else {
1487                /* Default to BT.656 embedded sync */
1488                core->mbus_type = V4L2_MBUS_BT656;
1489        }
1490
1491        v4l2_i2c_subdev_init(sd, c, &tvp5150_ops);
1492        sd->internal_ops = &tvp5150_internal_ops;
1493        sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
1494
1495#if defined(CONFIG_MEDIA_CONTROLLER)
1496        core->pads[DEMOD_PAD_IF_INPUT].flags = MEDIA_PAD_FL_SINK;
1497        core->pads[DEMOD_PAD_VID_OUT].flags = MEDIA_PAD_FL_SOURCE;
1498        core->pads[DEMOD_PAD_VBI_OUT].flags = MEDIA_PAD_FL_SOURCE;
1499
1500        sd->entity.function = MEDIA_ENT_F_ATV_DECODER;
1501
1502        res = media_entity_pads_init(&sd->entity, DEMOD_NUM_PADS, core->pads);
1503        if (res < 0)
1504                return res;
1505
1506        sd->entity.ops = &tvp5150_sd_media_ops;
1507#endif
1508
1509        res = tvp5150_detect_version(core);
1510        if (res < 0)
1511                return res;
1512
1513        core->norm = V4L2_STD_ALL;      /* Default is autodetect */
1514        core->input = TVP5150_COMPOSITE1;
1515        core->enable = true;
1516
1517        v4l2_ctrl_handler_init(&core->hdl, 5);
1518        v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
1519                        V4L2_CID_BRIGHTNESS, 0, 255, 1, 128);
1520        v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
1521                        V4L2_CID_CONTRAST, 0, 255, 1, 128);
1522        v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
1523                        V4L2_CID_SATURATION, 0, 255, 1, 128);
1524        v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
1525                        V4L2_CID_HUE, -128, 127, 1, 0);
1526        v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
1527                        V4L2_CID_PIXEL_RATE, 27000000,
1528                        27000000, 1, 27000000);
1529        v4l2_ctrl_new_std_menu_items(&core->hdl, &tvp5150_ctrl_ops,
1530                                     V4L2_CID_TEST_PATTERN,
1531                                     ARRAY_SIZE(tvp5150_test_patterns),
1532                                     0, 0, tvp5150_test_patterns);
1533        sd->ctrl_handler = &core->hdl;
1534        if (core->hdl.error) {
1535                res = core->hdl.error;
1536                goto err;
1537        }
1538
1539        /* Default is no cropping */
1540        core->rect.top = 0;
1541        if (tvp5150_read_std(sd) & V4L2_STD_525_60)
1542                core->rect.height = TVP5150_V_MAX_525_60;
1543        else
1544                core->rect.height = TVP5150_V_MAX_OTHERS;
1545        core->rect.left = 0;
1546        core->rect.width = TVP5150_H_MAX;
1547
1548        tvp5150_reset(sd, 0);   /* Calls v4l2_ctrl_handler_setup() */
1549
1550        res = v4l2_async_register_subdev(sd);
1551        if (res < 0)
1552                goto err;
1553
1554        if (debug > 1)
1555                tvp5150_log_status(sd);
1556        return 0;
1557
1558err:
1559        v4l2_ctrl_handler_free(&core->hdl);
1560        return res;
1561}
1562
1563static int tvp5150_remove(struct i2c_client *c)
1564{
1565        struct v4l2_subdev *sd = i2c_get_clientdata(c);
1566        struct tvp5150 *decoder = to_tvp5150(sd);
1567
1568        dev_dbg_lvl(sd->dev, 1, debug,
1569                "tvp5150.c: removing tvp5150 adapter on address 0x%x\n",
1570                c->addr << 1);
1571
1572        v4l2_async_unregister_subdev(sd);
1573        v4l2_ctrl_handler_free(&decoder->hdl);
1574        return 0;
1575}
1576
1577/* ----------------------------------------------------------------------- */
1578
1579static const struct i2c_device_id tvp5150_id[] = {
1580        { "tvp5150", 0 },
1581        { }
1582};
1583MODULE_DEVICE_TABLE(i2c, tvp5150_id);
1584
1585#if IS_ENABLED(CONFIG_OF)
1586static const struct of_device_id tvp5150_of_match[] = {
1587        { .compatible = "ti,tvp5150", },
1588        { /* sentinel */ },
1589};
1590MODULE_DEVICE_TABLE(of, tvp5150_of_match);
1591#endif
1592
1593static struct i2c_driver tvp5150_driver = {
1594        .driver = {
1595                .of_match_table = of_match_ptr(tvp5150_of_match),
1596                .name   = "tvp5150",
1597        },
1598        .probe          = tvp5150_probe,
1599        .remove         = tvp5150_remove,
1600        .id_table       = tvp5150_id,
1601};
1602
1603module_i2c_driver(tvp5150_driver);
1604