drivers/media/i2c/adv7842.c

   1 /*
   2  * adv7842 - Analog Devices ADV7842 video decoder driver
   3  *
   4  * Copyright 2013 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
   5  *
   6  * This program is free software; you may redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; version 2 of the License.
   9  *
  10  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  11  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  12  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  13  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  14  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  15  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  16  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  17  * SOFTWARE.
  18  *
  19  */
  20
  21 /*
  22  * References (c = chapter, p = page):
  23  * REF_01 - Analog devices, ADV7842, Register Settings Recommendations,
  24  *              Revision 2.5, June 2010
  25  * REF_02 - Analog devices, Register map documentation, Documentation of
  26  *              the register maps, Software manual, Rev. F, June 2010
  27  */
  28
  29
  30 #include <linux/kernel.h>
  31 #include <linux/module.h>
  32 #include <linux/slab.h>
  33 #include <linux/i2c.h>
  34 #include <linux/delay.h>
  35 #include <linux/videodev2.h>
  36 #include <linux/workqueue.h>
  37 #include <linux/v4l2-dv-timings.h>
  38 #include <media/v4l2-device.h>
  39 #include <media/v4l2-ctrls.h>
  40 #include <media/v4l2-dv-timings.h>
  41 #include <media/adv7842.h>
  42
  43 static int debug;
  44 module_param(debug, int, 0644);
  45 MODULE_PARM_DESC(debug, "debug level (0-2)");
  46
  47 MODULE_DESCRIPTION("Analog Devices ADV7842 video decoder driver");
  48 MODULE_AUTHOR("Hans Verkuil <hans.verkuil@cisco.com>");
  49 MODULE_AUTHOR("Martin Bugge <marbugge@cisco.com>");
  50 MODULE_LICENSE("GPL");
  51
  52 /* ADV7842 system clock frequency */
  53 #define ADV7842_fsc (28636360)
  54
  55 /*
  56 **********************************************************************
  57 *
  58 *  Arrays with configuration parameters for the ADV7842
  59 *
  60 **********************************************************************
  61 */
  62
  63 struct adv7842_state {
  64         struct v4l2_subdev sd;
  65         struct media_pad pad;
  66         struct v4l2_ctrl_handler hdl;
  67         enum adv7842_mode mode;
  68         struct v4l2_dv_timings timings;
  69         enum adv7842_vid_std_select vid_std_select;
  70         v4l2_std_id norm;
  71         struct {
  72                 u8 edid[256];
  73                 u32 present;
  74         } hdmi_edid;
  75         struct {
  76                 u8 edid[256];
  77                 u32 present;
  78         } vga_edid;
  79         struct v4l2_fract aspect_ratio;
  80         u32 rgb_quantization_range;
  81         bool is_cea_format;
  82         struct workqueue_struct *work_queues;
  83         struct delayed_work delayed_work_enable_hotplug;
  84         bool connector_hdmi;
  85         bool hdmi_port_a;
  86
  87         /* i2c clients */
  88         struct i2c_client *i2c_sdp_io;
  89         struct i2c_client *i2c_sdp;
  90         struct i2c_client *i2c_cp;
  91         struct i2c_client *i2c_vdp;
  92         struct i2c_client *i2c_afe;
  93         struct i2c_client *i2c_hdmi;
  94         struct i2c_client *i2c_repeater;
  95         struct i2c_client *i2c_edid;
  96         struct i2c_client *i2c_infoframe;
  97         struct i2c_client *i2c_cec;
  98         struct i2c_client *i2c_avlink;
  99
 100         /* controls */
 101         struct v4l2_ctrl *detect_tx_5v_ctrl;
 102         struct v4l2_ctrl *analog_sampling_phase_ctrl;
 103         struct v4l2_ctrl *free_run_color_ctrl_manual;
 104         struct v4l2_ctrl *free_run_color_ctrl;
 105         struct v4l2_ctrl *rgb_quantization_range_ctrl;
 106 };
 107
 108 /* Unsupported timings. This device cannot support 720p30. */
 109 static const struct v4l2_dv_timings adv7842_timings_exceptions[] = {
 110         V4L2_DV_BT_CEA_1280X720P30,
 111         { }
 112 };
 113
 114 static bool adv7842_check_dv_timings(const struct v4l2_dv_timings *t, void *hdl)
 115 {
 116         int i;
 117
 118         for (i = 0; adv7842_timings_exceptions[i].bt.width; i++)
 119                 if (v4l2_match_dv_timings(t, adv7842_timings_exceptions + i, 0))
 120                         return false;
 121         return true;
 122 }
 123
 124 struct adv7842_video_standards {
 125         struct v4l2_dv_timings timings;
 126         u8 vid_std;
 127         u8 v_freq;
 128 };
 129
 130 /* sorted by number of lines */
 131 static const struct adv7842_video_standards adv7842_prim_mode_comp[] = {
 132         /* { V4L2_DV_BT_CEA_720X480P59_94, 0x0a, 0x00 }, TODO flickering */
 133         { V4L2_DV_BT_CEA_720X576P50, 0x0b, 0x00 },
 134         { V4L2_DV_BT_CEA_1280X720P50, 0x19, 0x01 },
 135         { V4L2_DV_BT_CEA_1280X720P60, 0x19, 0x00 },
 136         { V4L2_DV_BT_CEA_1920X1080P24, 0x1e, 0x04 },
 137         { V4L2_DV_BT_CEA_1920X1080P25, 0x1e, 0x03 },
 138         { V4L2_DV_BT_CEA_1920X1080P30, 0x1e, 0x02 },
 139         { V4L2_DV_BT_CEA_1920X1080P50, 0x1e, 0x01 },
 140         { V4L2_DV_BT_CEA_1920X1080P60, 0x1e, 0x00 },
 141         /* TODO add 1920x1080P60_RB (CVT timing) */
 142         { },
 143 };
 144
 145 /* sorted by number of lines */
 146 static const struct adv7842_video_standards adv7842_prim_mode_gr[] = {
 147         { V4L2_DV_BT_DMT_640X480P60, 0x08, 0x00 },
 148         { V4L2_DV_BT_DMT_640X480P72, 0x09, 0x00 },
 149         { V4L2_DV_BT_DMT_640X480P75, 0x0a, 0x00 },
 150         { V4L2_DV_BT_DMT_640X480P85, 0x0b, 0x00 },
 151         { V4L2_DV_BT_DMT_800X600P56, 0x00, 0x00 },
 152         { V4L2_DV_BT_DMT_800X600P60, 0x01, 0x00 },
 153         { V4L2_DV_BT_DMT_800X600P72, 0x02, 0x00 },
 154         { V4L2_DV_BT_DMT_800X600P75, 0x03, 0x00 },
 155         { V4L2_DV_BT_DMT_800X600P85, 0x04, 0x00 },
 156         { V4L2_DV_BT_DMT_1024X768P60, 0x0c, 0x00 },
 157         { V4L2_DV_BT_DMT_1024X768P70, 0x0d, 0x00 },
 158         { V4L2_DV_BT_DMT_1024X768P75, 0x0e, 0x00 },
 159         { V4L2_DV_BT_DMT_1024X768P85, 0x0f, 0x00 },
 160         { V4L2_DV_BT_DMT_1280X1024P60, 0x05, 0x00 },
 161         { V4L2_DV_BT_DMT_1280X1024P75, 0x06, 0x00 },
 162         { V4L2_DV_BT_DMT_1360X768P60, 0x12, 0x00 },
 163         { V4L2_DV_BT_DMT_1366X768P60, 0x13, 0x00 },
 164         { V4L2_DV_BT_DMT_1400X1050P60, 0x14, 0x00 },
 165         { V4L2_DV_BT_DMT_1400X1050P75, 0x15, 0x00 },
 166         { V4L2_DV_BT_DMT_1600X1200P60, 0x16, 0x00 }, /* TODO not tested */
 167         /* TODO add 1600X1200P60_RB (not a DMT timing) */
 168         { V4L2_DV_BT_DMT_1680X1050P60, 0x18, 0x00 },
 169         { V4L2_DV_BT_DMT_1920X1200P60_RB, 0x19, 0x00 }, /* TODO not tested */
 170         { },
 171 };
 172
 173 /* sorted by number of lines */
 174 static const struct adv7842_video_standards adv7842_prim_mode_hdmi_comp[] = {
 175         { V4L2_DV_BT_CEA_720X480P59_94, 0x0a, 0x00 },
 176         { V4L2_DV_BT_CEA_720X576P50, 0x0b, 0x00 },
 177         { V4L2_DV_BT_CEA_1280X720P50, 0x13, 0x01 },
 178         { V4L2_DV_BT_CEA_1280X720P60, 0x13, 0x00 },
 179         { V4L2_DV_BT_CEA_1920X1080P24, 0x1e, 0x04 },
 180         { V4L2_DV_BT_CEA_1920X1080P25, 0x1e, 0x03 },
 181         { V4L2_DV_BT_CEA_1920X1080P30, 0x1e, 0x02 },
 182         { V4L2_DV_BT_CEA_1920X1080P50, 0x1e, 0x01 },
 183         { V4L2_DV_BT_CEA_1920X1080P60, 0x1e, 0x00 },
 184         { },
 185 };
 186
 187 /* sorted by number of lines */
 188 static const struct adv7842_video_standards adv7842_prim_mode_hdmi_gr[] = {
 189         { V4L2_DV_BT_DMT_640X480P60, 0x08, 0x00 },
 190         { V4L2_DV_BT_DMT_640X480P72, 0x09, 0x00 },
 191         { V4L2_DV_BT_DMT_640X480P75, 0x0a, 0x00 },
 192         { V4L2_DV_BT_DMT_640X480P85, 0x0b, 0x00 },
 193         { V4L2_DV_BT_DMT_800X600P56, 0x00, 0x00 },
 194         { V4L2_DV_BT_DMT_800X600P60, 0x01, 0x00 },
 195         { V4L2_DV_BT_DMT_800X600P72, 0x02, 0x00 },
 196         { V4L2_DV_BT_DMT_800X600P75, 0x03, 0x00 },
 197         { V4L2_DV_BT_DMT_800X600P85, 0x04, 0x00 },
 198         { V4L2_DV_BT_DMT_1024X768P60, 0x0c, 0x00 },
 199         { V4L2_DV_BT_DMT_1024X768P70, 0x0d, 0x00 },
 200         { V4L2_DV_BT_DMT_1024X768P75, 0x0e, 0x00 },
 201         { V4L2_DV_BT_DMT_1024X768P85, 0x0f, 0x00 },
 202         { V4L2_DV_BT_DMT_1280X1024P60, 0x05, 0x00 },
 203         { V4L2_DV_BT_DMT_1280X1024P75, 0x06, 0x00 },
 204         { },
 205 };
 206
 207 /* ----------------------------------------------------------------------- */
 208
 209 static inline struct adv7842_state *to_state(struct v4l2_subdev *sd)
 210 {
 211         return container_of(sd, struct adv7842_state, sd);
 212 }
 213
 214 static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
 215 {
 216         return &container_of(ctrl->handler, struct adv7842_state, hdl)->sd;
 217 }
 218
 219 static inline unsigned hblanking(const struct v4l2_bt_timings *t)
 220 {
 221         return V4L2_DV_BT_BLANKING_WIDTH(t);
 222 }
 223
 224 static inline unsigned htotal(const struct v4l2_bt_timings *t)
 225 {
 226         return V4L2_DV_BT_FRAME_WIDTH(t);
 227 }
 228
 229 static inline unsigned vblanking(const struct v4l2_bt_timings *t)
 230 {
 231         return V4L2_DV_BT_BLANKING_HEIGHT(t);
 232 }
 233
 234 static inline unsigned vtotal(const struct v4l2_bt_timings *t)
 235 {
 236         return V4L2_DV_BT_FRAME_HEIGHT(t);
 237 }
 238
 239
 240 /* ----------------------------------------------------------------------- */
 241
 242 static s32 adv_smbus_read_byte_data_check(struct i2c_client *client,
 243                                           u8 command, bool check)
 244 {
 245         union i2c_smbus_data data;
 246
 247         if (!i2c_smbus_xfer(client->adapter, client->addr, client->flags,
 248                             I2C_SMBUS_READ, command,
 249                             I2C_SMBUS_BYTE_DATA, &data))
 250                 return data.byte;
 251         if (check)
 252                 v4l_err(client, "error reading %02x, %02x\n",
 253                         client->addr, command);
 254         return -EIO;
 255 }
 256
 257 static s32 adv_smbus_read_byte_data(struct i2c_client *client, u8 command)
 258 {
 259         int i;
 260
 261         for (i = 0; i < 3; i++) {
 262                 int ret = adv_smbus_read_byte_data_check(client, command, true);
 263
 264                 if (ret >= 0) {
 265                         if (i)
 266                                 v4l_err(client, "read ok after %d retries\n", i);
 267                         return ret;
 268                 }
 269         }
 270         v4l_err(client, "read failed\n");
 271         return -EIO;
 272 }
 273
 274 static s32 adv_smbus_write_byte_data(struct i2c_client *client,
 275                                      u8 command, u8 value)
 276 {
 277         union i2c_smbus_data data;
 278         int err;
 279         int i;
 280
 281         data.byte = value;
 282         for (i = 0; i < 3; i++) {
 283                 err = i2c_smbus_xfer(client->adapter, client->addr,
 284                                      client->flags,
 285                                      I2C_SMBUS_WRITE, command,
 286                                      I2C_SMBUS_BYTE_DATA, &data);
 287                 if (!err)
 288                         break;
 289         }
 290         if (err < 0)
 291                 v4l_err(client, "error writing %02x, %02x, %02x\n",
 292                         client->addr, command, value);
 293         return err;
 294 }
 295
 296 static void adv_smbus_write_byte_no_check(struct i2c_client *client,
 297                                           u8 command, u8 value)
 298 {
 299         union i2c_smbus_data data;
 300         data.byte = value;
 301
 302         i2c_smbus_xfer(client->adapter, client->addr,
 303                        client->flags,
 304                        I2C_SMBUS_WRITE, command,
 305                        I2C_SMBUS_BYTE_DATA, &data);
 306 }
 307
 308 static s32 adv_smbus_write_i2c_block_data(struct i2c_client *client,
 309                                   u8 command, unsigned length, const u8 *values)
 310 {
 311         union i2c_smbus_data data;
 312
 313         if (length > I2C_SMBUS_BLOCK_MAX)
 314                 length = I2C_SMBUS_BLOCK_MAX;
 315         data.block[0] = length;
 316         memcpy(data.block + 1, values, length);
 317         return i2c_smbus_xfer(client->adapter, client->addr, client->flags,
 318                               I2C_SMBUS_WRITE, command,
 319                               I2C_SMBUS_I2C_BLOCK_DATA, &data);
 320 }
 321
 322 /* ----------------------------------------------------------------------- */
 323
 324 static inline int io_read(struct v4l2_subdev *sd, u8 reg)
 325 {
 326         struct i2c_client *client = v4l2_get_subdevdata(sd);
 327
 328         return adv_smbus_read_byte_data(client, reg);
 329 }
 330
 331 static inline int io_write(struct v4l2_subdev *sd, u8 reg, u8 val)
 332 {
 333         struct i2c_client *client = v4l2_get_subdevdata(sd);
 334
 335         return adv_smbus_write_byte_data(client, reg, val);
 336 }
 337
 338 static inline int io_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val)
 339 {
 340         return io_write(sd, reg, (io_read(sd, reg) & mask) | val);
 341 }
 342
 343 static inline int avlink_read(struct v4l2_subdev *sd, u8 reg)
 344 {
 345         struct adv7842_state *state = to_state(sd);
 346
 347         return adv_smbus_read_byte_data(state->i2c_avlink, reg);
 348 }
 349
 350 static inline int avlink_write(struct v4l2_subdev *sd, u8 reg, u8 val)
 351 {
 352         struct adv7842_state *state = to_state(sd);
 353
 354         return adv_smbus_write_byte_data(state->i2c_avlink, reg, val);
 355 }
 356
 357 static inline int cec_read(struct v4l2_subdev *sd, u8 reg)
 358 {
 359         struct adv7842_state *state = to_state(sd);
 360
 361         return adv_smbus_read_byte_data(state->i2c_cec, reg);
 362 }
 363
 364 static inline int cec_write(struct v4l2_subdev *sd, u8 reg, u8 val)
 365 {
 366         struct adv7842_state *state = to_state(sd);
 367
 368         return adv_smbus_write_byte_data(state->i2c_cec, reg, val);
 369 }
 370
 371 static inline int cec_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val)
 372 {
 373         return cec_write(sd, reg, (cec_read(sd, reg) & mask) | val);
 374 }
 375
 376 static inline int infoframe_read(struct v4l2_subdev *sd, u8 reg)
 377 {
 378         struct adv7842_state *state = to_state(sd);
 379
 380         return adv_smbus_read_byte_data(state->i2c_infoframe, reg);
 381 }
 382
 383 static inline int infoframe_write(struct v4l2_subdev *sd, u8 reg, u8 val)
 384 {
 385         struct adv7842_state *state = to_state(sd);
 386
 387         return adv_smbus_write_byte_data(state->i2c_infoframe, reg, val);
 388 }
 389
 390 static inline int sdp_io_read(struct v4l2_subdev *sd, u8 reg)
 391 {
 392         struct adv7842_state *state = to_state(sd);
 393
 394         return adv_smbus_read_byte_data(state->i2c_sdp_io, reg);
 395 }
 396
 397 static inline int sdp_io_write(struct v4l2_subdev *sd, u8 reg, u8 val)
 398 {
 399         struct adv7842_state *state = to_state(sd);
 400
 401         return adv_smbus_write_byte_data(state->i2c_sdp_io, reg, val);
 402 }
 403
 404 static inline int sdp_io_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val)
 405 {
 406         return sdp_io_write(sd, reg, (sdp_io_read(sd, reg) & mask) | val);
 407 }
 408
 409 static inline int sdp_read(struct v4l2_subdev *sd, u8 reg)
 410 {
 411         struct adv7842_state *state = to_state(sd);
 412
 413         return adv_smbus_read_byte_data(state->i2c_sdp, reg);
 414 }
 415
 416 static inline int sdp_write(struct v4l2_subdev *sd, u8 reg, u8 val)
 417 {
 418         struct adv7842_state *state = to_state(sd);
 419
 420         return adv_smbus_write_byte_data(state->i2c_sdp, reg, val);
 421 }
 422
 423 static inline int sdp_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val)
 424 {
 425         return sdp_write(sd, reg, (sdp_read(sd, reg) & mask) | val);
 426 }
 427
 428 static inline int afe_read(struct v4l2_subdev *sd, u8 reg)
 429 {
 430         struct adv7842_state *state = to_state(sd);
 431
 432         return adv_smbus_read_byte_data(state->i2c_afe, reg);
 433 }
 434
 435 static inline int afe_write(struct v4l2_subdev *sd, u8 reg, u8 val)
 436 {
 437         struct adv7842_state *state = to_state(sd);
 438
 439         return adv_smbus_write_byte_data(state->i2c_afe, reg, val);
 440 }
 441
 442 static inline int afe_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val)
 443 {
 444         return afe_write(sd, reg, (afe_read(sd, reg) & mask) | val);
 445 }
 446
 447 static inline int rep_read(struct v4l2_subdev *sd, u8 reg)
 448 {
 449         struct adv7842_state *state = to_state(sd);
 450
 451         return adv_smbus_read_byte_data(state->i2c_repeater, reg);
 452 }
 453
 454 static inline int rep_write(struct v4l2_subdev *sd, u8 reg, u8 val)
 455 {
 456         struct adv7842_state *state = to_state(sd);
 457
 458         return adv_smbus_write_byte_data(state->i2c_repeater, reg, val);
 459 }
 460
 461 static inline int rep_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val)
 462 {
 463         return rep_write(sd, reg, (rep_read(sd, reg) & mask) | val);
 464 }
 465
 466 static inline int edid_read(struct v4l2_subdev *sd, u8 reg)
 467 {
 468         struct adv7842_state *state = to_state(sd);
 469
 470         return adv_smbus_read_byte_data(state->i2c_edid, reg);
 471 }
 472
 473 static inline int edid_write(struct v4l2_subdev *sd, u8 reg, u8 val)
 474 {
 475         struct adv7842_state *state = to_state(sd);
 476
 477         return adv_smbus_write_byte_data(state->i2c_edid, reg, val);
 478 }
 479
 480 static inline int hdmi_read(struct v4l2_subdev *sd, u8 reg)
 481 {
 482         struct adv7842_state *state = to_state(sd);
 483
 484         return adv_smbus_read_byte_data(state->i2c_hdmi, reg);
 485 }
 486
 487 static inline int hdmi_write(struct v4l2_subdev *sd, u8 reg, u8 val)
 488 {
 489         struct adv7842_state *state = to_state(sd);
 490
 491         return adv_smbus_write_byte_data(state->i2c_hdmi, reg, val);
 492 }
 493
 494 static inline int cp_read(struct v4l2_subdev *sd, u8 reg)
 495 {
 496         struct adv7842_state *state = to_state(sd);
 497
 498         return adv_smbus_read_byte_data(state->i2c_cp, reg);
 499 }
 500
 501 static inline int cp_write(struct v4l2_subdev *sd, u8 reg, u8 val)
 502 {
 503         struct adv7842_state *state = to_state(sd);
 504
 505         return adv_smbus_write_byte_data(state->i2c_cp, reg, val);
 506 }
 507
 508 static inline int cp_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val)
 509 {
 510         return cp_write(sd, reg, (cp_read(sd, reg) & mask) | val);
 511 }
 512
 513 static inline int vdp_read(struct v4l2_subdev *sd, u8 reg)
 514 {
 515         struct adv7842_state *state = to_state(sd);
 516
 517         return adv_smbus_read_byte_data(state->i2c_vdp, reg);
 518 }
 519
 520 static inline int vdp_write(struct v4l2_subdev *sd, u8 reg, u8 val)
 521 {
 522         struct adv7842_state *state = to_state(sd);
 523
 524         return adv_smbus_write_byte_data(state->i2c_vdp, reg, val);
 525 }
 526
 527 static void main_reset(struct v4l2_subdev *sd)
 528 {
 529         struct i2c_client *client = v4l2_get_subdevdata(sd);
 530
 531         v4l2_dbg(1, debug, sd, "%s:\n", __func__);
 532
 533         adv_smbus_write_byte_no_check(client, 0xff, 0x80);
 534
 535         mdelay(2);
 536 }
 537
 538 /* ----------------------------------------------------------------------- */
 539
 540 static inline bool is_digital_input(struct v4l2_subdev *sd)
 541 {
 542         struct adv7842_state *state = to_state(sd);
 543
 544         return state->mode == ADV7842_MODE_HDMI;
 545 }
 546
 547 static const struct v4l2_dv_timings_cap adv7842_timings_cap_analog = {
 548         .type = V4L2_DV_BT_656_1120,
 549         /* keep this initialization for compatibility with GCC < 4.4.6 */
 550         .reserved = { 0 },
 551         V4L2_INIT_BT_TIMINGS(0, 1920, 0, 1200, 25000000, 170000000,
 552                 V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT |
 553                         V4L2_DV_BT_STD_GTF | V4L2_DV_BT_STD_CVT,
 554                 V4L2_DV_BT_CAP_PROGRESSIVE | V4L2_DV_BT_CAP_REDUCED_BLANKING |
 555                         V4L2_DV_BT_CAP_CUSTOM)
 556 };
 557
 558 static const struct v4l2_dv_timings_cap adv7842_timings_cap_digital = {
 559         .type = V4L2_DV_BT_656_1120,
 560         /* keep this initialization for compatibility with GCC < 4.4.6 */
 561         .reserved = { 0 },
 562         V4L2_INIT_BT_TIMINGS(0, 1920, 0, 1200, 25000000, 225000000,
 563                 V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT |
 564                         V4L2_DV_BT_STD_GTF | V4L2_DV_BT_STD_CVT,
 565                 V4L2_DV_BT_CAP_PROGRESSIVE | V4L2_DV_BT_CAP_REDUCED_BLANKING |
 566                         V4L2_DV_BT_CAP_CUSTOM)
 567 };
 568
 569 static inline const struct v4l2_dv_timings_cap *
 570 adv7842_get_dv_timings_cap(struct v4l2_subdev *sd)
 571 {
 572         return is_digital_input(sd) ? &adv7842_timings_cap_digital :
 573                                       &adv7842_timings_cap_analog;
 574 }
 575
 576 /* ----------------------------------------------------------------------- */
 577
 578 static void adv7842_delayed_work_enable_hotplug(struct work_struct *work)
 579 {
 580         struct delayed_work *dwork = to_delayed_work(work);
 581         struct adv7842_state *state = container_of(dwork,
 582                         struct adv7842_state, delayed_work_enable_hotplug);
 583         struct v4l2_subdev *sd = &state->sd;
 584         int present = state->hdmi_edid.present;
 585         u8 mask = 0;
 586
 587         v4l2_dbg(2, debug, sd, "%s: enable hotplug on ports: 0x%x\n",
 588                         __func__, present);
 589
 590         if (present & 0x1)
 591                 mask |= 0x20; /* port A */
 592         if (present & 0x2)
 593                 mask |= 0x10; /* port B */
 594         io_write_and_or(sd, 0x20, 0xcf, mask);
 595 }
 596
 597 static int edid_write_vga_segment(struct v4l2_subdev *sd)
 598 {
 599         struct i2c_client *client = v4l2_get_subdevdata(sd);
 600         struct adv7842_state *state = to_state(sd);
 601         const u8 *val = state->vga_edid.edid;
 602         int err = 0;
 603         int i;
 604
 605         v4l2_dbg(2, debug, sd, "%s: write EDID on VGA port\n", __func__);
 606
 607         /* HPA disable on port A and B */
 608         io_write_and_or(sd, 0x20, 0xcf, 0x00);
 609
 610         /* Disable I2C access to internal EDID ram from VGA DDC port */
 611         rep_write_and_or(sd, 0x7f, 0x7f, 0x00);
 612
 613         /* edid segment pointer '1' for VGA port */
 614         rep_write_and_or(sd, 0x77, 0xef, 0x10);
 615
 616         for (i = 0; !err && i < 256; i += I2C_SMBUS_BLOCK_MAX)
 617                 err = adv_smbus_write_i2c_block_data(state->i2c_edid, i,
 618                                              I2C_SMBUS_BLOCK_MAX, val + i);
 619         if (err)
 620                 return err;
 621
 622         /* Calculates the checksums and enables I2C access
 623          * to internal EDID ram from VGA DDC port.
 624          */
 625         rep_write_and_or(sd, 0x7f, 0x7f, 0x80);
 626
 627         for (i = 0; i < 1000; i++) {
 628                 if (rep_read(sd, 0x79) & 0x20)
 629                         break;
 630                 mdelay(1);
 631         }
 632         if (i == 1000) {
 633                 v4l_err(client, "error enabling edid on VGA port\n");
 634                 return -EIO;
 635         }
 636
 637         /* enable hotplug after 200 ms */
 638         queue_delayed_work(state->work_queues,
 639                         &state->delayed_work_enable_hotplug, HZ / 5);
 640
 641         return 0;
 642 }
 643
 644 static int edid_spa_location(const u8 *edid)
 645 {
 646         u8 d;
 647
 648         /*
 649          * TODO, improve and update for other CEA extensions
 650          * currently only for 1 segment (256 bytes),
 651          * i.e. 1 extension block and CEA revision 3.
 652          */
 653         if ((edid[0x7e] != 1) ||
 654             (edid[0x80] != 0x02) ||
 655             (edid[0x81] != 0x03)) {
 656                 return -EINVAL;
 657         }
 658         /*
 659          * search Vendor Specific Data Block (tag 3)
 660          */
 661         d = edid[0x82] & 0x7f;
 662         if (d > 4) {
 663                 int i = 0x84;
 664                 int end = 0x80 + d;
 665                 do {
 666                         u8 tag = edid[i]>>5;
 667                         u8 len = edid[i] & 0x1f;
 668
 669                         if ((tag == 3) && (len >= 5))
 670                                 return i + 4;
 671                         i += len + 1;
 672                 } while (i < end);
 673         }
 674         return -EINVAL;
 675 }
 676
 677 static int edid_write_hdmi_segment(struct v4l2_subdev *sd, u8 port)
 678 {
 679         struct i2c_client *client = v4l2_get_subdevdata(sd);
 680         struct adv7842_state *state = to_state(sd);
 681         const u8 *val = state->hdmi_edid.edid;
 682         u8 cur_mask = rep_read(sd, 0x77) & 0x0c;
 683         u8 mask = port == 0 ? 0x4 : 0x8;
 684         int spa_loc = edid_spa_location(val);
 685         int err = 0;
 686         int i;
 687
 688         v4l2_dbg(2, debug, sd, "%s: write EDID on port %d (spa at 0x%x)\n",
 689                         __func__, port, spa_loc);
 690
 691         /* HPA disable on port A and B */
 692         io_write_and_or(sd, 0x20, 0xcf, 0x00);
 693
 694         /* Disable I2C access to internal EDID ram from HDMI DDC ports */
 695         rep_write_and_or(sd, 0x77, 0xf3, 0x00);
 696
 697         /* edid segment pointer '0' for HDMI ports */
 698         rep_write_and_or(sd, 0x77, 0xef, 0x00);
 699
 700         for (i = 0; !err && i < 256; i += I2C_SMBUS_BLOCK_MAX)
 701                 err = adv_smbus_write_i2c_block_data(state->i2c_edid, i,
 702                                                      I2C_SMBUS_BLOCK_MAX, val + i);
 703         if (err)
 704                 return err;
 705
 706         if (spa_loc > 0) {
 707                 if (port == 0) {
 708                         /* port A SPA */
 709                         rep_write(sd, 0x72, val[spa_loc]);
 710                         rep_write(sd, 0x73, val[spa_loc + 1]);
 711                 } else {
 712                         /* port B SPA */
 713                         rep_write(sd, 0x74, val[spa_loc]);
 714                         rep_write(sd, 0x75, val[spa_loc + 1]);
 715                 }
 716                 rep_write(sd, 0x76, spa_loc);
 717         } else {
 718                 /* default register values for SPA */
 719                 if (port == 0) {
 720                         /* port A SPA */
 721                         rep_write(sd, 0x72, 0);
 722                         rep_write(sd, 0x73, 0);
 723                 } else {
 724                         /* port B SPA */
 725                         rep_write(sd, 0x74, 0);
 726                         rep_write(sd, 0x75, 0);
 727                 }
 728                 rep_write(sd, 0x76, 0xc0);
 729         }
 730         rep_write_and_or(sd, 0x77, 0xbf, 0x00);
 731
 732         /* Calculates the checksums and enables I2C access to internal
 733          * EDID ram from HDMI DDC ports
 734          */
 735         rep_write_and_or(sd, 0x77, 0xf3, mask | cur_mask);
 736
 737         for (i = 0; i < 1000; i++) {
 738                 if (rep_read(sd, 0x7d) & mask)
 739                         break;
 740                 mdelay(1);
 741         }
 742         if (i == 1000) {
 743                 v4l_err(client, "error enabling edid on port %d\n", port);
 744                 return -EIO;
 745         }
 746
 747         /* enable hotplug after 200 ms */
 748         queue_delayed_work(state->work_queues,
 749                         &state->delayed_work_enable_hotplug, HZ / 5);
 750
 751         return 0;
 752 }
 753
 754 /* ----------------------------------------------------------------------- */
 755
 756 #ifdef CONFIG_VIDEO_ADV_DEBUG
 757 static void adv7842_inv_register(struct v4l2_subdev *sd)
 758 {
 759         v4l2_info(sd, "0x000-0x0ff: IO Map\n");
 760         v4l2_info(sd, "0x100-0x1ff: AVLink Map\n");
 761         v4l2_info(sd, "0x200-0x2ff: CEC Map\n");
 762         v4l2_info(sd, "0x300-0x3ff: InfoFrame Map\n");
 763         v4l2_info(sd, "0x400-0x4ff: SDP_IO Map\n");
 764         v4l2_info(sd, "0x500-0x5ff: SDP Map\n");
 765         v4l2_info(sd, "0x600-0x6ff: AFE Map\n");
 766         v4l2_info(sd, "0x700-0x7ff: Repeater Map\n");
 767         v4l2_info(sd, "0x800-0x8ff: EDID Map\n");
 768         v4l2_info(sd, "0x900-0x9ff: HDMI Map\n");
 769         v4l2_info(sd, "0xa00-0xaff: CP Map\n");
 770         v4l2_info(sd, "0xb00-0xbff: VDP Map\n");
 771 }
 772
 773 static int adv7842_g_register(struct v4l2_subdev *sd,
 774                               struct v4l2_dbg_register *reg)
 775 {
 776         reg->size = 1;
 777         switch (reg->reg >> 8) {
 778         case 0:
 779                 reg->val = io_read(sd, reg->reg & 0xff);
 780                 break;
 781         case 1:
 782                 reg->val = avlink_read(sd, reg->reg & 0xff);
 783                 break;
 784         case 2:
 785                 reg->val = cec_read(sd, reg->reg & 0xff);
 786                 break;
 787         case 3:
 788                 reg->val = infoframe_read(sd, reg->reg & 0xff);
 789                 break;
 790         case 4:
 791                 reg->val = sdp_io_read(sd, reg->reg & 0xff);
 792                 break;
 793         case 5:
 794                 reg->val = sdp_read(sd, reg->reg & 0xff);
 795                 break;
 796         case 6:
 797                 reg->val = afe_read(sd, reg->reg & 0xff);
 798                 break;
 799         case 7:
 800                 reg->val = rep_read(sd, reg->reg & 0xff);
 801                 break;
 802         case 8:
 803                 reg->val = edid_read(sd, reg->reg & 0xff);
 804                 break;
 805         case 9:
 806                 reg->val = hdmi_read(sd, reg->reg & 0xff);
 807                 break;
 808         case 0xa:
 809                 reg->val = cp_read(sd, reg->reg & 0xff);
 810                 break;
 811         case 0xb:
 812                 reg->val = vdp_read(sd, reg->reg & 0xff);
 813                 break;
 814         default:
 815                 v4l2_info(sd, "Register %03llx not supported\n", reg->reg);
 816                 adv7842_inv_register(sd);
 817                 break;
 818         }
 819         return 0;
 820 }
 821
 822 static int adv7842_s_register(struct v4l2_subdev *sd,
 823                 const struct v4l2_dbg_register *reg)
 824 {
 825         u8 val = reg->val & 0xff;
 826
 827         switch (reg->reg >> 8) {
 828         case 0:
 829                 io_write(sd, reg->reg & 0xff, val);
 830                 break;
 831         case 1:
 832                 avlink_write(sd, reg->reg & 0xff, val);
 833                 break;
 834         case 2:
 835                 cec_write(sd, reg->reg & 0xff, val);
 836                 break;
 837         case 3:
 838                 infoframe_write(sd, reg->reg & 0xff, val);
 839                 break;
 840         case 4:
 841                 sdp_io_write(sd, reg->reg & 0xff, val);
 842                 break;
 843         case 5:
 844                 sdp_write(sd, reg->reg & 0xff, val);
 845                 break;
 846         case 6:
 847                 afe_write(sd, reg->reg & 0xff, val);
 848                 break;
 849         case 7:
 850                 rep_write(sd, reg->reg & 0xff, val);
 851                 break;
 852         case 8:
 853                 edid_write(sd, reg->reg & 0xff, val);
 854                 break;
 855         case 9:
 856                 hdmi_write(sd, reg->reg & 0xff, val);
 857                 break;
 858         case 0xa:
 859                 cp_write(sd, reg->reg & 0xff, val);
 860                 break;
 861         case 0xb:
 862                 vdp_write(sd, reg->reg & 0xff, val);
 863                 break;
 864         default:
 865                 v4l2_info(sd, "Register %03llx not supported\n", reg->reg);
 866                 adv7842_inv_register(sd);
 867                 break;
 868         }
 869         return 0;
 870 }
 871 #endif
 872
 873 static int adv7842_s_detect_tx_5v_ctrl(struct v4l2_subdev *sd)
 874 {
 875         struct adv7842_state *state = to_state(sd);
 876         int prev = v4l2_ctrl_g_ctrl(state->detect_tx_5v_ctrl);
 877         u8 reg_io_6f = io_read(sd, 0x6f);
 878         int val = 0;
 879
 880         if (reg_io_6f & 0x02)
 881                 val |= 1; /* port A */
 882         if (reg_io_6f & 0x01)
 883                 val |= 2; /* port B */
 884
 885         v4l2_dbg(1, debug, sd, "%s: 0x%x -> 0x%x\n", __func__, prev, val);
 886
 887         if (val != prev)
 888                 return v4l2_ctrl_s_ctrl(state->detect_tx_5v_ctrl, val);
 889         return 0;
 890 }
 891
 892 static int find_and_set_predefined_video_timings(struct v4l2_subdev *sd,
 893                 u8 prim_mode,
 894                 const struct adv7842_video_standards *predef_vid_timings,
 895                 const struct v4l2_dv_timings *timings)
 896 {
 897         int i;
 898
 899         for (i = 0; predef_vid_timings[i].timings.bt.width; i++) {
 900                 if (!v4l2_match_dv_timings(timings, &predef_vid_timings[i].timings,
 901                                           is_digital_input(sd) ? 250000 : 1000000))
 902                         continue;
 903                 /* video std */
 904                 io_write(sd, 0x00, predef_vid_timings[i].vid_std);
 905                 /* v_freq and prim mode */
 906                 io_write(sd, 0x01, (predef_vid_timings[i].v_freq << 4) + prim_mode);
 907                 return 0;
 908         }
 909
 910         return -1;
 911 }
 912
 913 static int configure_predefined_video_timings(struct v4l2_subdev *sd,
 914                 struct v4l2_dv_timings *timings)
 915 {
 916         struct adv7842_state *state = to_state(sd);
 917         int err;
 918
 919         v4l2_dbg(1, debug, sd, "%s\n", __func__);
 920
 921         /* reset to default values */
 922         io_write(sd, 0x16, 0x43);
 923         io_write(sd, 0x17, 0x5a);
 924         /* disable embedded syncs for auto graphics mode */
 925         cp_write_and_or(sd, 0x81, 0xef, 0x00);
 926         cp_write(sd, 0x26, 0x00);
 927         cp_write(sd, 0x27, 0x00);
 928         cp_write(sd, 0x28, 0x00);
 929         cp_write(sd, 0x29, 0x00);
 930         cp_write(sd, 0x8f, 0x00);
 931         cp_write(sd, 0x90, 0x00);
 932         cp_write(sd, 0xa5, 0x00);
 933         cp_write(sd, 0xa6, 0x00);
 934         cp_write(sd, 0xa7, 0x00);
 935         cp_write(sd, 0xab, 0x00);
 936         cp_write(sd, 0xac, 0x00);
 937
 938         switch (state->mode) {
 939         case ADV7842_MODE_COMP:
 940         case ADV7842_MODE_RGB:
 941                 err = find_and_set_predefined_video_timings(sd,
 942                                 0x01, adv7842_prim_mode_comp, timings);
 943                 if (err)
 944                         err = find_and_set_predefined_video_timings(sd,
 945                                         0x02, adv7842_prim_mode_gr, timings);
 946                 break;
 947         case ADV7842_MODE_HDMI:
 948                 err = find_and_set_predefined_video_timings(sd,
 949                                 0x05, adv7842_prim_mode_hdmi_comp, timings);
 950                 if (err)
 951                         err = find_and_set_predefined_video_timings(sd,
 952                                         0x06, adv7842_prim_mode_hdmi_gr, timings);
 953                 break;
 954         default:
 955                 v4l2_dbg(2, debug, sd, "%s: Unknown mode %d\n",
 956                                 __func__, state->mode);
 957                 err = -1;
 958                 break;
 959         }
 960
 961
 962         return err;
 963 }
 964
 965 static void configure_custom_video_timings(struct v4l2_subdev *sd,
 966                 const struct v4l2_bt_timings *bt)
 967 {
 968         struct adv7842_state *state = to_state(sd);
 969         struct i2c_client *client = v4l2_get_subdevdata(sd);
 970         u32 width = htotal(bt);
 971         u32 height = vtotal(bt);
 972         u16 cp_start_sav = bt->hsync + bt->hbackporch - 4;
 973         u16 cp_start_eav = width - bt->hfrontporch;
 974         u16 cp_start_vbi = height - bt->vfrontporch + 1;
 975         u16 cp_end_vbi = bt->vsync + bt->vbackporch + 1;
 976         u16 ch1_fr_ll = (((u32)bt->pixelclock / 100) > 0) ?
 977                 ((width * (ADV7842_fsc / 100)) / ((u32)bt->pixelclock / 100)) : 0;
 978         const u8 pll[2] = {
 979                 0xc0 | ((width >> 8) & 0x1f),
 980                 width & 0xff
 981         };
 982
 983         v4l2_dbg(2, debug, sd, "%s\n", __func__);
 984
 985         switch (state->mode) {
 986         case ADV7842_MODE_COMP:
 987         case ADV7842_MODE_RGB:
 988                 /* auto graphics */
 989                 io_write(sd, 0x00, 0x07); /* video std */
 990                 io_write(sd, 0x01, 0x02); /* prim mode */
 991                 /* enable embedded syncs for auto graphics mode */
 992                 cp_write_and_or(sd, 0x81, 0xef, 0x10);
 993
 994                 /* Should only be set in auto-graphics mode [REF_02, p. 91-92] */
 995                 /* setup PLL_DIV_MAN_EN and PLL_DIV_RATIO */
 996                 /* IO-map reg. 0x16 and 0x17 should be written in sequence */
 997                 if (adv_smbus_write_i2c_block_data(client, 0x16, 2, pll)) {
 998                         v4l2_err(sd, "writing to reg 0x16 and 0x17 failed\n");
 999                         break;
1000                 }
1001
1002                 /* active video - horizontal timing */
1003                 cp_write(sd, 0x26, (cp_start_sav >> 8) & 0xf);
1004                 cp_write(sd, 0x27, (cp_start_sav & 0xff));
1005                 cp_write(sd, 0x28, (cp_start_eav >> 8) & 0xf);
1006                 cp_write(sd, 0x29, (cp_start_eav & 0xff));
1007
1008                 /* active video - vertical timing */
1009                 cp_write(sd, 0xa5, (cp_start_vbi >> 4) & 0xff);
1010                 cp_write(sd, 0xa6, ((cp_start_vbi & 0xf) << 4) |
1011                                         ((cp_end_vbi >> 8) & 0xf));
1012                 cp_write(sd, 0xa7, cp_end_vbi & 0xff);
1013                 break;
1014         case ADV7842_MODE_HDMI:
1015                 /* set default prim_mode/vid_std for HDMI
1016                    accoring to [REF_03, c. 4.2] */
1017                 io_write(sd, 0x00, 0x02); /* video std */
1018                 io_write(sd, 0x01, 0x06); /* prim mode */
1019                 break;
1020         default:
1021                 v4l2_dbg(2, debug, sd, "%s: Unknown mode %d\n",
1022                                 __func__, state->mode);
1023                 break;
1024         }
1025
1026         cp_write(sd, 0x8f, (ch1_fr_ll >> 8) & 0x7);
1027         cp_write(sd, 0x90, ch1_fr_ll & 0xff);
1028         cp_write(sd, 0xab, (height >> 4) & 0xff);
1029         cp_write(sd, 0xac, (height & 0x0f) << 4);
1030 }
1031
1032 static void set_rgb_quantization_range(struct v4l2_subdev *sd)
1033 {
1034         struct adv7842_state *state = to_state(sd);
1035
1036         switch (state->rgb_quantization_range) {
1037         case V4L2_DV_RGB_RANGE_AUTO:
1038                 /* automatic */
1039                 if (is_digital_input(sd) && !(hdmi_read(sd, 0x05) & 0x80)) {
1040                         /* receiving DVI-D signal */
1041
1042                         /* ADV7842 selects RGB limited range regardless of
1043                            input format (CE/IT) in automatic mode */
1044                         if (state->timings.bt.standards & V4L2_DV_BT_STD_CEA861) {
1045                                 /* RGB limited range (16-235) */
1046                                 io_write_and_or(sd, 0x02, 0x0f, 0x00);
1047
1048                         } else {
1049                                 /* RGB full range (0-255) */
1050                                 io_write_and_or(sd, 0x02, 0x0f, 0x10);
1051                         }
1052                 } else {
1053                         /* receiving HDMI or analog signal, set automode */
1054                         io_write_and_or(sd, 0x02, 0x0f, 0xf0);
1055                 }
1056                 break;
1057         case V4L2_DV_RGB_RANGE_LIMITED:
1058                 /* RGB limited range (16-235) */
1059                 io_write_and_or(sd, 0x02, 0x0f, 0x00);
1060                 break;
1061         case V4L2_DV_RGB_RANGE_FULL:
1062                 /* RGB full range (0-255) */
1063                 io_write_and_or(sd, 0x02, 0x0f, 0x10);
1064                 break;
1065         }
1066 }
1067
1068 static int adv7842_s_ctrl(struct v4l2_ctrl *ctrl)
1069 {
1070         struct v4l2_subdev *sd = to_sd(ctrl);
1071         struct adv7842_state *state = to_state(sd);
1072
1073         /* TODO SDP ctrls
1074            contrast/brightness/hue/free run is acting a bit strange,
1075            not sure if sdp csc is correct.
1076          */
1077         switch (ctrl->id) {
1078         /* standard ctrls */
1079         case V4L2_CID_BRIGHTNESS:
1080                 cp_write(sd, 0x3c, ctrl->val);
1081                 sdp_write(sd, 0x14, ctrl->val);
1082                 /* ignore lsb sdp 0x17[3:2] */
1083                 return 0;
1084         case V4L2_CID_CONTRAST:
1085                 cp_write(sd, 0x3a, ctrl->val);
1086                 sdp_write(sd, 0x13, ctrl->val);
1087                 /* ignore lsb sdp 0x17[1:0] */
1088                 return 0;
1089         case V4L2_CID_SATURATION:
1090                 cp_write(sd, 0x3b, ctrl->val);
1091                 sdp_write(sd, 0x15, ctrl->val);
1092                 /* ignore lsb sdp 0x17[5:4] */
1093                 return 0;
1094         case V4L2_CID_HUE:
1095                 cp_write(sd, 0x3d, ctrl->val);
1096                 sdp_write(sd, 0x16, ctrl->val);
1097                 /* ignore lsb sdp 0x17[7:6] */
1098                 return 0;
1099                 /* custom ctrls */
1100         case V4L2_CID_ADV_RX_ANALOG_SAMPLING_PHASE:
1101                 afe_write(sd, 0xc8, ctrl->val);
1102                 return 0;
1103         case V4L2_CID_ADV_RX_FREE_RUN_COLOR_MANUAL:
1104                 cp_write_and_or(sd, 0xbf, ~0x04, (ctrl->val << 2));
1105                 sdp_write_and_or(sd, 0xdd, ~0x04, (ctrl->val << 2));
1106                 return 0;
1107         case V4L2_CID_ADV_RX_FREE_RUN_COLOR: {
1108                 u8 R = (ctrl->val & 0xff0000) >> 16;
1109                 u8 G = (ctrl->val & 0x00ff00) >> 8;
1110                 u8 B = (ctrl->val & 0x0000ff);
1111                 /* RGB -> YUV, numerical approximation */
1112                 int Y = 66 * R + 129 * G + 25 * B;
1113                 int U = -38 * R - 74 * G + 112 * B;
1114                 int V = 112 * R - 94 * G - 18 * B;
1115
1116                 /* Scale down to 8 bits with rounding */
1117                 Y = (Y + 128) >> 8;
1118                 U = (U + 128) >> 8;
1119                 V = (V + 128) >> 8;
1120                 /* make U,V positive */
1121                 Y += 16;
1122                 U += 128;
1123                 V += 128;
1124
1125                 v4l2_dbg(1, debug, sd, "R %x, G %x, B %x\n", R, G, B);
1126                 v4l2_dbg(1, debug, sd, "Y %x, U %x, V %x\n", Y, U, V);
1127
1128                 /* CP */
1129                 cp_write(sd, 0xc1, R);
1130                 cp_write(sd, 0xc0, G);
1131                 cp_write(sd, 0xc2, B);
1132                 /* SDP */
1133                 sdp_write(sd, 0xde, Y);
1134                 sdp_write(sd, 0xdf, (V & 0xf0) | ((U >> 4) & 0x0f));
1135                 return 0;
1136         }
1137         case V4L2_CID_DV_RX_RGB_RANGE:
1138                 state->rgb_quantization_range = ctrl->val;
1139                 set_rgb_quantization_range(sd);
1140                 return 0;
1141         }
1142         return -EINVAL;
1143 }
1144
1145 static inline bool no_power(struct v4l2_subdev *sd)
1146 {
1147         return io_read(sd, 0x0c) & 0x24;
1148 }
1149
1150 static inline bool no_cp_signal(struct v4l2_subdev *sd)
1151 {
1152         return ((cp_read(sd, 0xb5) & 0xd0) != 0xd0) || !(cp_read(sd, 0xb1) & 0x80);
1153 }
1154
1155 static inline bool is_hdmi(struct v4l2_subdev *sd)
1156 {
1157         return hdmi_read(sd, 0x05) & 0x80;
1158 }
1159
1160 static int adv7842_g_input_status(struct v4l2_subdev *sd, u32 *status)
1161 {
1162         struct adv7842_state *state = to_state(sd);
1163
1164         *status = 0;
1165
1166         if (io_read(sd, 0x0c) & 0x24)
1167                 *status |= V4L2_IN_ST_NO_POWER;
1168
1169         if (state->mode == ADV7842_MODE_SDP) {
1170                 /* status from SDP block */
1171                 if (!(sdp_read(sd, 0x5A) & 0x01))
1172                         *status |= V4L2_IN_ST_NO_SIGNAL;
1173
1174                 v4l2_dbg(1, debug, sd, "%s: SDP status = 0x%x\n",
1175                                 __func__, *status);
1176                 return 0;
1177         }
1178         /* status from CP block */
1179         if ((cp_read(sd, 0xb5) & 0xd0) != 0xd0 ||
1180                         !(cp_read(sd, 0xb1) & 0x80))
1181                 /* TODO channel 2 */
1182                 *status |= V4L2_IN_ST_NO_SIGNAL;
1183
1184         if (is_digital_input(sd) && ((io_read(sd, 0x74) & 0x03) != 0x03))
1185                 *status |= V4L2_IN_ST_NO_SIGNAL;
1186
1187         v4l2_dbg(1, debug, sd, "%s: CP status = 0x%x\n",
1188                         __func__, *status);
1189
1190         return 0;
1191 }
1192
1193 struct stdi_readback {
1194         u16 bl, lcf, lcvs;
1195         u8 hs_pol, vs_pol;
1196         bool interlaced;
1197 };
1198
1199 static int stdi2dv_timings(struct v4l2_subdev *sd,
1200                 struct stdi_readback *stdi,
1201                 struct v4l2_dv_timings *timings)
1202 {
1203         struct adv7842_state *state = to_state(sd);
1204         u32 hfreq = (ADV7842_fsc * 8) / stdi->bl;
1205         u32 pix_clk;
1206         int i;
1207
1208         for (i = 0; v4l2_dv_timings_presets[i].bt.width; i++) {
1209                 const struct v4l2_bt_timings *bt = &v4l2_dv_timings_presets[i].bt;
1210
1211                 if (!v4l2_valid_dv_timings(&v4l2_dv_timings_presets[i],
1212                                            adv7842_get_dv_timings_cap(sd),
1213                                            adv7842_check_dv_timings, NULL))
1214                         continue;
1215                 if (vtotal(bt) != stdi->lcf + 1)
1216                         continue;
1217                 if (bt->vsync != stdi->lcvs)
1218                         continue;
1219
1220                 pix_clk = hfreq * htotal(bt);
1221
1222                 if ((pix_clk < bt->pixelclock + 1000000) &&
1223                     (pix_clk > bt->pixelclock - 1000000)) {
1224                         *timings = v4l2_dv_timings_presets[i];
1225                         return 0;
1226                 }
1227         }
1228
1229         if (v4l2_detect_cvt(stdi->lcf + 1, hfreq, stdi->lcvs,
1230                         (stdi->hs_pol == '+' ? V4L2_DV_HSYNC_POS_POL : 0) |
1231                         (stdi->vs_pol == '+' ? V4L2_DV_VSYNC_POS_POL : 0),
1232                             timings))
1233                 return 0;
1234         if (v4l2_detect_gtf(stdi->lcf + 1, hfreq, stdi->lcvs,
1235                         (stdi->hs_pol == '+' ? V4L2_DV_HSYNC_POS_POL : 0) |
1236                         (stdi->vs_pol == '+' ? V4L2_DV_VSYNC_POS_POL : 0),
1237                             state->aspect_ratio, timings))
1238                 return 0;
1239
1240         v4l2_dbg(2, debug, sd,
1241                 "%s: No format candidate found for lcvs = %d, lcf=%d, bl = %d, %chsync, %cvsync\n",
1242                 __func__, stdi->lcvs, stdi->lcf, stdi->bl,
1243                 stdi->hs_pol, stdi->vs_pol);
1244         return -1;
1245 }
1246
1247 static int read_stdi(struct v4l2_subdev *sd, struct stdi_readback *stdi)
1248 {
1249         u32 status;
1250
1251         adv7842_g_input_status(sd, &status);
1252         if (status & V4L2_IN_ST_NO_SIGNAL) {
1253                 v4l2_dbg(2, debug, sd, "%s: no signal\n", __func__);
1254                 return -ENOLINK;
1255         }
1256
1257         stdi->bl = ((cp_read(sd, 0xb1) & 0x3f) << 8) | cp_read(sd, 0xb2);
1258         stdi->lcf = ((cp_read(sd, 0xb3) & 0x7) << 8) | cp_read(sd, 0xb4);
1259         stdi->lcvs = cp_read(sd, 0xb3) >> 3;
1260
1261         if ((cp_read(sd, 0xb5) & 0x80) && ((cp_read(sd, 0xb5) & 0x03) == 0x01)) {
1262                 stdi->hs_pol = ((cp_read(sd, 0xb5) & 0x10) ?
1263                         ((cp_read(sd, 0xb5) & 0x08) ? '+' : '-') : 'x');
1264                 stdi->vs_pol = ((cp_read(sd, 0xb5) & 0x40) ?
1265                         ((cp_read(sd, 0xb5) & 0x20) ? '+' : '-') : 'x');
1266         } else {
1267                 stdi->hs_pol = 'x';
1268                 stdi->vs_pol = 'x';
1269         }
1270         stdi->interlaced = (cp_read(sd, 0xb1) & 0x40) ? true : false;
1271
1272         if (stdi->lcf < 239 || stdi->bl < 8 || stdi->bl == 0x3fff) {
1273                 v4l2_dbg(2, debug, sd, "%s: invalid signal\n", __func__);
1274                 return -ENOLINK;
1275         }
1276
1277         v4l2_dbg(2, debug, sd,
1278                 "%s: lcf (frame height - 1) = %d, bl = %d, lcvs (vsync) = %d, %chsync, %cvsync, %s\n",
1279                  __func__, stdi->lcf, stdi->bl, stdi->lcvs,
1280                  stdi->hs_pol, stdi->vs_pol,
1281                  stdi->interlaced ? "interlaced" : "progressive");
1282
1283         return 0;
1284 }
1285
1286 static int adv7842_enum_dv_timings(struct v4l2_subdev *sd,
1287                                    struct v4l2_enum_dv_timings *timings)
1288 {
1289         return v4l2_enum_dv_timings_cap(timings,
1290                 adv7842_get_dv_timings_cap(sd), adv7842_check_dv_timings, NULL);
1291 }
1292
1293 static int adv7842_dv_timings_cap(struct v4l2_subdev *sd,
1294                                   struct v4l2_dv_timings_cap *cap)
1295 {
1296         *cap = *adv7842_get_dv_timings_cap(sd);
1297         return 0;
1298 }
1299
1300 /* Fill the optional fields .standards and .flags in struct v4l2_dv_timings
1301    if the format is listed in adv7604_timings[] */
1302 static void adv7842_fill_optional_dv_timings_fields(struct v4l2_subdev *sd,
1303                 struct v4l2_dv_timings *timings)
1304 {
1305         v4l2_find_dv_timings_cap(timings, adv7842_get_dv_timings_cap(sd),
1306                         is_digital_input(sd) ? 250000 : 1000000,
1307                         adv7842_check_dv_timings, NULL);
1308 }
1309
1310 static int adv7842_query_dv_timings(struct v4l2_subdev *sd,
1311                                     struct v4l2_dv_timings *timings)
1312 {
1313         struct adv7842_state *state = to_state(sd);
1314         struct v4l2_bt_timings *bt = &timings->bt;
1315         struct stdi_readback stdi = { 0 };
1316
1317         /* SDP block */
1318         if (state->mode == ADV7842_MODE_SDP)
1319                 return -ENODATA;
1320
1321         /* read STDI */
1322         if (read_stdi(sd, &stdi)) {
1323                 v4l2_dbg(1, debug, sd, "%s: no valid signal\n", __func__);
1324                 return -ENOLINK;
1325         }
1326         bt->interlaced = stdi.interlaced ?
1327                 V4L2_DV_INTERLACED : V4L2_DV_PROGRESSIVE;
1328         bt->polarities = ((hdmi_read(sd, 0x05) & 0x10) ? V4L2_DV_VSYNC_POS_POL : 0) |
1329                 ((hdmi_read(sd, 0x05) & 0x20) ? V4L2_DV_HSYNC_POS_POL : 0);
1330         bt->vsync = stdi.lcvs;
1331
1332         if (is_digital_input(sd)) {
1333                 bool lock = hdmi_read(sd, 0x04) & 0x02;
1334                 bool interlaced = hdmi_read(sd, 0x0b) & 0x20;
1335                 unsigned w = (hdmi_read(sd, 0x07) & 0x1f) * 256 + hdmi_read(sd, 0x08);
1336                 unsigned h = (hdmi_read(sd, 0x09) & 0x1f) * 256 + hdmi_read(sd, 0x0a);
1337                 unsigned w_total = (hdmi_read(sd, 0x1e) & 0x3f) * 256 +
1338                         hdmi_read(sd, 0x1f);
1339                 unsigned h_total = ((hdmi_read(sd, 0x26) & 0x3f) * 256 +
1340                                     hdmi_read(sd, 0x27)) / 2;
1341                 unsigned freq = (((hdmi_read(sd, 0x51) << 1) +
1342                                         (hdmi_read(sd, 0x52) >> 7)) * 1000000) +
1343                         ((hdmi_read(sd, 0x52) & 0x7f) * 1000000) / 128;
1344                 int i;
1345
1346                 if (is_hdmi(sd)) {
1347                         /* adjust for deep color mode */
1348                         freq = freq * 8 / (((hdmi_read(sd, 0x0b) & 0xc0)>>6) * 2 + 8);
1349                 }
1350
1351                 /* No lock? */
1352                 if (!lock) {
1353                         v4l2_dbg(1, debug, sd, "%s: no lock on TMDS signal\n", __func__);
1354                         return -ENOLCK;
1355                 }
1356                 /* Interlaced? */
1357                 if (interlaced) {
1358                         v4l2_dbg(1, debug, sd, "%s: interlaced video not supported\n", __func__);
1359                         return -ERANGE;
1360                 }
1361
1362                 for (i = 0; v4l2_dv_timings_presets[i].bt.width; i++) {
1363                         const struct v4l2_bt_timings *bt = &v4l2_dv_timings_presets[i].bt;
1364
1365                         if (!v4l2_valid_dv_timings(&v4l2_dv_timings_presets[i],
1366                                                    adv7842_get_dv_timings_cap(sd),
1367                                                    adv7842_check_dv_timings, NULL))
1368                                 continue;
1369                         if (w_total != htotal(bt) || h_total != vtotal(bt))
1370                                 continue;
1371
1372                         if (w != bt->width || h != bt->height)
1373                                 continue;
1374
1375                         if (abs(freq - bt->pixelclock) > 1000000)
1376                                 continue;
1377                         *timings = v4l2_dv_timings_presets[i];
1378                         return 0;
1379                 }
1380
1381                 timings->type = V4L2_DV_BT_656_1120;
1382
1383                 bt->width = w;
1384                 bt->height = h;
1385                 bt->interlaced = (hdmi_read(sd, 0x0b) & 0x20) ?
1386                         V4L2_DV_INTERLACED : V4L2_DV_PROGRESSIVE;
1387                 bt->polarities = ((hdmi_read(sd, 0x05) & 0x10) ?
1388                         V4L2_DV_VSYNC_POS_POL : 0) | ((hdmi_read(sd, 0x05) & 0x20) ?
1389                         V4L2_DV_HSYNC_POS_POL : 0);
1390                 bt->pixelclock = (((hdmi_read(sd, 0x51) << 1) +
1391                                    (hdmi_read(sd, 0x52) >> 7)) * 1000000) +
1392                                  ((hdmi_read(sd, 0x52) & 0x7f) * 1000000) / 128;
1393                 bt->hfrontporch = (hdmi_read(sd, 0x20) & 0x1f) * 256 +
1394                         hdmi_read(sd, 0x21);
1395                 bt->hsync = (hdmi_read(sd, 0x22) & 0x1f) * 256 +
1396                         hdmi_read(sd, 0x23);
1397                 bt->hbackporch = (hdmi_read(sd, 0x24) & 0x1f) * 256 +
1398                         hdmi_read(sd, 0x25);
1399                 bt->vfrontporch = ((hdmi_read(sd, 0x2a) & 0x3f) * 256 +
1400                                    hdmi_read(sd, 0x2b)) / 2;
1401                 bt->il_vfrontporch = ((hdmi_read(sd, 0x2c) & 0x3f) * 256 +
1402                                       hdmi_read(sd, 0x2d)) / 2;
1403                 bt->vsync = ((hdmi_read(sd, 0x2e) & 0x3f) * 256 +
1404                              hdmi_read(sd, 0x2f)) / 2;
1405                 bt->il_vsync = ((hdmi_read(sd, 0x30) & 0x3f) * 256 +
1406                                 hdmi_read(sd, 0x31)) / 2;
1407                 bt->vbackporch = ((hdmi_read(sd, 0x32) & 0x3f) * 256 +
1408                                   hdmi_read(sd, 0x33)) / 2;
1409                 bt->il_vbackporch = ((hdmi_read(sd, 0x34) & 0x3f) * 256 +
1410                                      hdmi_read(sd, 0x35)) / 2;
1411
1412                 bt->standards = 0;
1413                 bt->flags = 0;
1414         } else {
1415                 /* Interlaced? */
1416                 if (stdi.interlaced) {
1417                         v4l2_dbg(1, debug, sd, "%s: interlaced video not supported\n", __func__);
1418                         return -ERANGE;
1419                 }
1420
1421                 if (stdi2dv_timings(sd, &stdi, timings)) {
1422                         v4l2_dbg(1, debug, sd, "%s: format not supported\n", __func__);
1423                         return -ERANGE;
1424                 }
1425         }
1426
1427         if (debug > 1)
1428                 v4l2_print_dv_timings(sd->name, "adv7842_query_dv_timings: ",
1429                                       timings, true);
1430         return 0;
1431 }
1432
1433 static int adv7842_s_dv_timings(struct v4l2_subdev *sd,
1434                                 struct v4l2_dv_timings *timings)
1435 {
1436         struct adv7842_state *state = to_state(sd);
1437         struct v4l2_bt_timings *bt;
1438         int err;
1439
1440         if (state->mode == ADV7842_MODE_SDP)
1441                 return -ENODATA;
1442
1443         bt = &timings->bt;
1444
1445         if (!v4l2_valid_dv_timings(timings, adv7842_get_dv_timings_cap(sd),
1446                                    adv7842_check_dv_timings, NULL))
1447                 return -ERANGE;
1448
1449         adv7842_fill_optional_dv_timings_fields(sd, timings);
1450
1451         state->timings = *timings;
1452
1453         cp_write(sd, 0x91, bt->interlaced ? 0x50 : 0x10);
1454
1455         /* Use prim_mode and vid_std when available */
1456         err = configure_predefined_video_timings(sd, timings);
1457         if (err) {
1458                 /* custom settings when the video format
1459                   does not have prim_mode/vid_std */
1460                 configure_custom_video_timings(sd, bt);
1461         }
1462
1463         set_rgb_quantization_range(sd);
1464
1465
1466         if (debug > 1)
1467                 v4l2_print_dv_timings(sd->name, "adv7842_s_dv_timings: ",
1468                                       timings, true);
1469         return 0;
1470 }
1471
1472 static int adv7842_g_dv_timings(struct v4l2_subdev *sd,
1473                                 struct v4l2_dv_timings *timings)
1474 {
1475         struct adv7842_state *state = to_state(sd);
1476
1477         if (state->mode == ADV7842_MODE_SDP)
1478                 return -ENODATA;
1479         *timings = state->timings;
1480         return 0;
1481 }
1482
1483 static void enable_input(struct v4l2_subdev *sd)
1484 {
1485         struct adv7842_state *state = to_state(sd);
1486         switch (state->mode) {
1487         case ADV7842_MODE_SDP:
1488         case ADV7842_MODE_COMP:
1489         case ADV7842_MODE_RGB:
1490                 /* enable */
1491                 io_write(sd, 0x15, 0xb0);   /* Disable Tristate of Pins (no audio) */
1492                 break;
1493         case ADV7842_MODE_HDMI:
1494                 /* enable */
1495                 hdmi_write(sd, 0x1a, 0x0a); /* Unmute audio */
1496                 hdmi_write(sd, 0x01, 0x00); /* Enable HDMI clock terminators */
1497                 io_write(sd, 0x15, 0xa0);   /* Disable Tristate of Pins */
1498                 break;
1499         default:
1500                 v4l2_dbg(2, debug, sd, "%s: Unknown mode %d\n",
1501                          __func__, state->mode);
1502                 break;
1503         }
1504 }
1505
1506 static void disable_input(struct v4l2_subdev *sd)
1507 {
1508         /* disable */
1509         io_write(sd, 0x15, 0xbe);   /* Tristate all outputs from video core */
1510         hdmi_write(sd, 0x1a, 0x1a); /* Mute audio */
1511         hdmi_write(sd, 0x01, 0x78); /* Disable HDMI clock terminators */
1512 }
1513
1514 static void sdp_csc_coeff(struct v4l2_subdev *sd,
1515                           const struct adv7842_sdp_csc_coeff *c)
1516 {
1517         /* csc auto/manual */
1518         sdp_io_write_and_or(sd, 0xe0, 0xbf, c->manual ? 0x00 : 0x40);
1519
1520         if (!c->manual)
1521                 return;
1522
1523         /* csc scaling */
1524         sdp_io_write_and_or(sd, 0xe0, 0x7f, c->scaling == 2 ? 0x80 : 0x00);
1525
1526         /* A coeff */
1527         sdp_io_write_and_or(sd, 0xe0, 0xe0, c->A1 >> 8);
1528         sdp_io_write(sd, 0xe1, c->A1);
1529         sdp_io_write_and_or(sd, 0xe2, 0xe0, c->A2 >> 8);
1530         sdp_io_write(sd, 0xe3, c->A2);
1531         sdp_io_write_and_or(sd, 0xe4, 0xe0, c->A3 >> 8);
1532         sdp_io_write(sd, 0xe5, c->A3);
1533
1534         /* A scale */
1535         sdp_io_write_and_or(sd, 0xe6, 0x80, c->A4 >> 8);
1536         sdp_io_write(sd, 0xe7, c->A4);
1537
1538         /* B coeff */
1539         sdp_io_write_and_or(sd, 0xe8, 0xe0, c->B1 >> 8);
1540         sdp_io_write(sd, 0xe9, c->B1);
1541         sdp_io_write_and_or(sd, 0xea, 0xe0, c->B2 >> 8);
1542         sdp_io_write(sd, 0xeb, c->B2);
1543         sdp_io_write_and_or(sd, 0xec, 0xe0, c->B3 >> 8);
1544         sdp_io_write(sd, 0xed, c->B3);
1545
1546         /* B scale */
1547         sdp_io_write_and_or(sd, 0xee, 0x80, c->B4 >> 8);
1548         sdp_io_write(sd, 0xef, c->B4);
1549
1550         /* C coeff */
1551         sdp_io_write_and_or(sd, 0xf0, 0xe0, c->C1 >> 8);
1552         sdp_io_write(sd, 0xf1, c->C1);
1553         sdp_io_write_and_or(sd, 0xf2, 0xe0, c->C2 >> 8);
1554         sdp_io_write(sd, 0xf3, c->C2);
1555         sdp_io_write_and_or(sd, 0xf4, 0xe0, c->C3 >> 8);
1556         sdp_io_write(sd, 0xf5, c->C3);
1557
1558         /* C scale */
1559         sdp_io_write_and_or(sd, 0xf6, 0x80, c->C4 >> 8);
1560         sdp_io_write(sd, 0xf7, c->C4);
1561 }
1562
1563 static void select_input(struct v4l2_subdev *sd,
1564                          enum adv7842_vid_std_select vid_std_select)
1565 {
1566         struct adv7842_state *state = to_state(sd);
1567
1568         switch (state->mode) {
1569         case ADV7842_MODE_SDP:
1570                 io_write(sd, 0x00, vid_std_select); /* video std: CVBS or YC mode */
1571                 io_write(sd, 0x01, 0); /* prim mode */
1572                 /* enable embedded syncs for auto graphics mode */
1573                 cp_write_and_or(sd, 0x81, 0xef, 0x10);
1574
1575                 afe_write(sd, 0x00, 0x00); /* power up ADC */
1576                 afe_write(sd, 0xc8, 0x00); /* phase control */
1577
1578                 io_write(sd, 0x19, 0x83); /* LLC DLL phase */
1579                 io_write(sd, 0x33, 0x40); /* LLC DLL enable */
1580
1581                 io_write(sd, 0xdd, 0x90); /* Manual 2x output clock */
1582                 /* script says register 0xde, which don't exist in manual */
1583
1584                 /* Manual analog input muxing mode, CVBS (6.4)*/
1585                 afe_write_and_or(sd, 0x02, 0x7f, 0x80);
1586                 if (vid_std_select == ADV7842_SDP_VID_STD_CVBS_SD_4x1) {
1587                         afe_write(sd, 0x03, 0xa0); /* ADC0 to AIN10 (CVBS), ADC1 N/C*/
1588                         afe_write(sd, 0x04, 0x00); /* ADC2 N/C,ADC3 N/C*/
1589                 } else {
1590                         afe_write(sd, 0x03, 0xa0); /* ADC0 to AIN10 (CVBS), ADC1 N/C*/
1591                         afe_write(sd, 0x04, 0xc0); /* ADC2 to AIN12, ADC3 N/C*/
1592                 }
1593                 afe_write(sd, 0x0c, 0x1f); /* ADI recommend write */
1594                 afe_write(sd, 0x12, 0x63); /* ADI recommend write */
1595
1596                 sdp_io_write(sd, 0xb2, 0x60); /* Disable AV codes */
1597                 sdp_io_write(sd, 0xc8, 0xe3); /* Disable Ancillary data */
1598
1599                 /* SDP recommended settings */
1600                 sdp_write(sd, 0x00, 0x3F); /* Autodetect PAL NTSC (not SECAM) */
1601                 sdp_write(sd, 0x01, 0x00); /* Pedestal Off */
1602
1603                 sdp_write(sd, 0x03, 0xE4); /* Manual VCR Gain Luma 0x40B */
1604                 sdp_write(sd, 0x04, 0x0B); /* Manual Luma setting */
1605                 sdp_write(sd, 0x05, 0xC3); /* Manual Chroma setting 0x3FE */
1606                 sdp_write(sd, 0x06, 0xFE); /* Manual Chroma setting */
1607                 sdp_write(sd, 0x12, 0x0D); /* Frame TBC,I_P, 3D comb enabled */
1608                 sdp_write(sd, 0xA7, 0x00); /* ADI Recommended Write */
1609                 sdp_io_write(sd, 0xB0, 0x00); /* Disable H and v blanking */
1610
1611                 /* deinterlacer enabled and 3D comb */
1612                 sdp_write_and_or(sd, 0x12, 0xf6, 0x09);
1613
1614                 sdp_write(sd, 0xdd, 0x08); /* free run auto */
1615
1616                 break;
1617
1618         case ADV7842_MODE_COMP:
1619         case ADV7842_MODE_RGB:
1620                 /* Automatic analog input muxing mode */
1621                 afe_write_and_or(sd, 0x02, 0x7f, 0x00);
1622                 /* set mode and select free run resolution */
1623                 io_write(sd, 0x00, vid_std_select); /* video std */
1624                 io_write(sd, 0x01, 0x02); /* prim mode */
1625                 cp_write_and_or(sd, 0x81, 0xef, 0x10); /* enable embedded syncs
1626                                                           for auto graphics mode */
1627
1628                 afe_write(sd, 0x00, 0x00); /* power up ADC */
1629                 afe_write(sd, 0xc8, 0x00); /* phase control */
1630
1631                 /* set ADI recommended settings for digitizer */
1632                 /* "ADV7842 Register Settings Recommendations
1633                  * (rev. 1.8, November 2010)" p. 9. */
1634                 afe_write(sd, 0x0c, 0x1f); /* ADC Range improvement */
1635                 afe_write(sd, 0x12, 0x63); /* ADC Range improvement */
1636
1637                 /* set to default gain for RGB */
1638                 cp_write(sd, 0x73, 0x10);
1639                 cp_write(sd, 0x74, 0x04);
1640                 cp_write(sd, 0x75, 0x01);
1641                 cp_write(sd, 0x76, 0x00);
1642
1643                 cp_write(sd, 0x3e, 0x04); /* CP core pre-gain control */
1644                 cp_write(sd, 0xc3, 0x39); /* CP coast control. Graphics mode */
1645                 cp_write(sd, 0x40, 0x5c); /* CP core pre-gain control. Graphics mode */
1646                 break;
1647
1648         case ADV7842_MODE_HDMI:
1649                 /* Automatic analog input muxing mode */
1650                 afe_write_and_or(sd, 0x02, 0x7f, 0x00);
1651                 /* set mode and select free run resolution */
1652                 if (state->hdmi_port_a)
1653                         hdmi_write(sd, 0x00, 0x02); /* select port A */
1654                 else
1655                         hdmi_write(sd, 0x00, 0x03); /* select port B */
1656                 io_write(sd, 0x00, vid_std_select); /* video std */
1657                 io_write(sd, 0x01, 5); /* prim mode */
1658                 cp_write_and_or(sd, 0x81, 0xef, 0x00); /* disable embedded syncs
1659                                                           for auto graphics mode */
1660
1661                 /* set ADI recommended settings for HDMI: */
1662                 /* "ADV7842 Register Settings Recommendations
1663                  * (rev. 1.8, November 2010)" p. 3. */
1664                 hdmi_write(sd, 0xc0, 0x00);
1665                 hdmi_write(sd, 0x0d, 0x34); /* ADI recommended write */
1666                 hdmi_write(sd, 0x3d, 0x10); /* ADI recommended write */
1667                 hdmi_write(sd, 0x44, 0x85); /* TMDS PLL optimization */
1668                 hdmi_write(sd, 0x46, 0x1f); /* ADI recommended write */
1669                 hdmi_write(sd, 0x57, 0xb6); /* TMDS PLL optimization */
1670                 hdmi_write(sd, 0x58, 0x03); /* TMDS PLL optimization */
1671                 hdmi_write(sd, 0x60, 0x88); /* TMDS PLL optimization */
1672                 hdmi_write(sd, 0x61, 0x88); /* TMDS PLL optimization */
1673                 hdmi_write(sd, 0x6c, 0x18); /* Disable ISRC clearing bit,
1674                                                Improve robustness */
1675                 hdmi_write(sd, 0x75, 0x10); /* DDC drive strength */
1676                 hdmi_write(sd, 0x85, 0x1f); /* equaliser */
1677                 hdmi_write(sd, 0x87, 0x70); /* ADI recommended write */
1678                 hdmi_write(sd, 0x89, 0x04); /* equaliser */
1679                 hdmi_write(sd, 0x8a, 0x1e); /* equaliser */
1680                 hdmi_write(sd, 0x93, 0x04); /* equaliser */
1681                 hdmi_write(sd, 0x94, 0x1e); /* equaliser */
1682                 hdmi_write(sd, 0x99, 0xa1); /* ADI recommended write */
1683                 hdmi_write(sd, 0x9b, 0x09); /* ADI recommended write */
1684                 hdmi_write(sd, 0x9d, 0x02); /* equaliser */
1685
1686                 afe_write(sd, 0x00, 0xff); /* power down ADC */
1687                 afe_write(sd, 0xc8, 0x40); /* phase control */
1688
1689                 /* set to default gain for HDMI */
1690                 cp_write(sd, 0x73, 0x10);
1691                 cp_write(sd, 0x74, 0x04);
1692                 cp_write(sd, 0x75, 0x01);
1693                 cp_write(sd, 0x76, 0x00);
1694
1695                 /* reset ADI recommended settings for digitizer */
1696                 /* "ADV7842 Register Settings Recommendations
1697                  * (rev. 2.5, June 2010)" p. 17. */
1698                 afe_write(sd, 0x12, 0xfb); /* ADC noise shaping filter controls */
1699                 afe_write(sd, 0x0c, 0x0d); /* CP core gain controls */
1700                 cp_write(sd, 0x3e, 0x80); /* CP core pre-gain control,
1701                                              enable color control */
1702                 /* CP coast control */
1703                 cp_write(sd, 0xc3, 0x33); /* Component mode */
1704
1705                 /* color space conversion, autodetect color space */
1706                 io_write_and_or(sd, 0x02, 0x0f, 0xf0);
1707                 break;
1708
1709         default:
1710                 v4l2_dbg(2, debug, sd, "%s: Unknown mode %d\n",
1711                          __func__, state->mode);
1712                 break;
1713         }
1714 }
1715
1716 static int adv7842_s_routing(struct v4l2_subdev *sd,
1717                 u32 input, u32 output, u32 config)
1718 {
1719         struct adv7842_state *state = to_state(sd);
1720
1721         v4l2_dbg(2, debug, sd, "%s: input %d\n", __func__, input);
1722
1723         switch (input) {
1724         case ADV7842_SELECT_HDMI_PORT_A:
1725                 /* TODO select HDMI_COMP or HDMI_GR */
1726                 state->mode = ADV7842_MODE_HDMI;
1727                 state->vid_std_select = ADV7842_HDMI_COMP_VID_STD_HD_1250P;
1728                 state->hdmi_port_a = true;
1729                 break;
1730         case ADV7842_SELECT_HDMI_PORT_B:
1731                 /* TODO select HDMI_COMP or HDMI_GR */
1732                 state->mode = ADV7842_MODE_HDMI;
1733                 state->vid_std_select = ADV7842_HDMI_COMP_VID_STD_HD_1250P;
1734                 state->hdmi_port_a = false;
1735                 break;
1736         case ADV7842_SELECT_VGA_COMP:
1737                 v4l2_info(sd, "%s: VGA component: todo\n", __func__);
1738         case ADV7842_SELECT_VGA_RGB:
1739                 state->mode = ADV7842_MODE_RGB;
1740                 state->vid_std_select = ADV7842_RGB_VID_STD_AUTO_GRAPH_MODE;
1741                 break;
1742         case ADV7842_SELECT_SDP_CVBS:
1743                 state->mode = ADV7842_MODE_SDP;
1744                 state->vid_std_select = ADV7842_SDP_VID_STD_CVBS_SD_4x1;
1745                 break;
1746         case ADV7842_SELECT_SDP_YC:
1747                 state->mode = ADV7842_MODE_SDP;
1748                 state->vid_std_select = ADV7842_SDP_VID_STD_YC_SD4_x1;
1749                 break;
1750         default:
1751                 return -EINVAL;
1752         }
1753
1754         disable_input(sd);
1755         select_input(sd, state->vid_std_select);
1756         enable_input(sd);
1757
1758         v4l2_subdev_notify(sd, ADV7842_FMT_CHANGE, NULL);
1759
1760         return 0;
1761 }
1762
1763 static int adv7842_enum_mbus_fmt(struct v4l2_subdev *sd, unsigned int index,
1764                                  enum v4l2_mbus_pixelcode *code)
1765 {
1766         if (index)
1767                 return -EINVAL;
1768         /* Good enough for now */
1769         *code = V4L2_MBUS_FMT_FIXED;
1770         return 0;
1771 }
1772
1773 static int adv7842_g_mbus_fmt(struct v4l2_subdev *sd,
1774                               struct v4l2_mbus_framefmt *fmt)
1775 {
1776         struct adv7842_state *state = to_state(sd);
1777
1778         fmt->width = state->timings.bt.width;
1779         fmt->height = state->timings.bt.height;
1780         fmt->code = V4L2_MBUS_FMT_FIXED;
1781         fmt->field = V4L2_FIELD_NONE;
1782
1783         if (state->mode == ADV7842_MODE_SDP) {
1784                 /* SPD block */
1785                 if (!(sdp_read(sd, 0x5A) & 0x01))
1786                         return -EINVAL;
1787                 fmt->width = 720;
1788                 /* valid signal */
1789                 if (state->norm & V4L2_STD_525_60)
1790                         fmt->height = 480;
1791                 else
1792                         fmt->height = 576;
1793                 fmt->colorspace = V4L2_COLORSPACE_SMPTE170M;
1794                 return 0;
1795         }
1796
1797         if (state->timings.bt.standards & V4L2_DV_BT_STD_CEA861) {
1798                 fmt->colorspace = (state->timings.bt.height <= 576) ?
1799                         V4L2_COLORSPACE_SMPTE170M : V4L2_COLORSPACE_REC709;
1800         }
1801         return 0;
1802 }
1803
1804 static void adv7842_irq_enable(struct v4l2_subdev *sd, bool enable)
1805 {
1806         if (enable) {
1807                 /* Enable SSPD, STDI and CP locked/unlocked interrupts */
1808                 io_write(sd, 0x46, 0x9c);
1809                 /* ESDP_50HZ_DET interrupt */
1810                 io_write(sd, 0x5a, 0x10);
1811                 /* Enable CABLE_DET_A/B_ST (+5v) interrupt */
1812                 io_write(sd, 0x73, 0x03);
1813                 /* Enable V_LOCKED and DE_REGEN_LCK interrupts */
1814                 io_write(sd, 0x78, 0x03);
1815                 /* Enable SDP Standard Detection Change and SDP Video Detected */
1816                 io_write(sd, 0xa0, 0x09);
1817         } else {
1818                 io_write(sd, 0x46, 0x0);
1819                 io_write(sd, 0x5a, 0x0);
1820                 io_write(sd, 0x73, 0x0);
1821                 io_write(sd, 0x78, 0x0);
1822                 io_write(sd, 0xa0, 0x0);
1823         }
1824 }
1825
1826 static int adv7842_isr(struct v4l2_subdev *sd, u32 status, bool *handled)
1827 {
1828         struct adv7842_state *state = to_state(sd);
1829         u8 fmt_change_cp, fmt_change_digital, fmt_change_sdp;
1830         u8 irq_status[5];
1831         u8 irq_cfg = io_read(sd, 0x40);
1832
1833         /* disable irq-pin output */
1834         io_write(sd, 0x40, irq_cfg | 0x3);
1835
1836         /* read status */
1837         irq_status[0] = io_read(sd, 0x43);
1838         irq_status[1] = io_read(sd, 0x57);
1839         irq_status[2] = io_read(sd, 0x70);
1840         irq_status[3] = io_read(sd, 0x75);
1841         irq_status[4] = io_read(sd, 0x9d);
1842
1843         /* and clear */
1844         if (irq_status[0])
1845                 io_write(sd, 0x44, irq_status[0]);
1846         if (irq_status[1])
1847                 io_write(sd, 0x58, irq_status[1]);
1848         if (irq_status[2])
1849                 io_write(sd, 0x71, irq_status[2]);
1850         if (irq_status[3])
1851                 io_write(sd, 0x76, irq_status[3]);
1852         if (irq_status[4])
1853                 io_write(sd, 0x9e, irq_status[4]);
1854
1855         v4l2_dbg(1, debug, sd, "%s: irq %x, %x, %x, %x, %x\n", __func__,
1856                  irq_status[0], irq_status[1], irq_status[2],
1857                  irq_status[3], irq_status[4]);
1858
1859         /* format change CP */
1860         fmt_change_cp = irq_status[0] & 0x9c;
1861
1862         /* format change SDP */
1863         if (state->mode == ADV7842_MODE_SDP)
1864                 fmt_change_sdp = (irq_status[1] & 0x30) | (irq_status[4] & 0x09);
1865         else
1866                 fmt_change_sdp = 0;
1867
1868         /* digital format CP */
1869         if (is_digital_input(sd))
1870                 fmt_change_digital = irq_status[3] & 0x03;
1871         else
1872                 fmt_change_digital = 0;
1873
1874         /* notify */
1875         if (fmt_change_cp || fmt_change_digital || fmt_change_sdp) {
1876                 v4l2_dbg(1, debug, sd,
1877                          "%s: fmt_change_cp = 0x%x, fmt_change_digital = 0x%x, fmt_change_sdp = 0x%x\n",
1878                          __func__, fmt_change_cp, fmt_change_digital,
1879                          fmt_change_sdp);
1880                 v4l2_subdev_notify(sd, ADV7842_FMT_CHANGE, NULL);
1881         }
1882
1883         /* 5v cable detect */
1884         if (irq_status[2])
1885                 adv7842_s_detect_tx_5v_ctrl(sd);
1886
1887         if (handled)
1888                 *handled = true;
1889
1890         /* re-enable irq-pin output */
1891         io_write(sd, 0x40, irq_cfg);
1892
1893         return 0;
1894 }
1895
1896 static int adv7842_set_edid(struct v4l2_subdev *sd, struct v4l2_subdev_edid *e)
1897 {
1898         struct adv7842_state *state = to_state(sd);
1899         int err = 0;
1900
1901         if (e->pad > 2)
1902                 return -EINVAL;
1903         if (e->start_block != 0)
1904                 return -EINVAL;
1905         if (e->blocks > 2)
1906                 return -E2BIG;
1907         if (!e->edid)
1908                 return -EINVAL;
1909
1910         /* todo, per edid */
1911         state->aspect_ratio = v4l2_calc_aspect_ratio(e->edid[0x15],
1912                         e->edid[0x16]);
1913
1914         if (e->pad == 2) {
1915                 memset(&state->vga_edid.edid, 0, 256);
1916                 state->vga_edid.present = e->blocks ? 0x1 : 0x0;
1917                 memcpy(&state->vga_edid.edid, e->edid, 128 * e->blocks);
1918                 err = edid_write_vga_segment(sd);
1919         } else {
1920                 u32 mask = 0x1<<e->pad;
1921                 memset(&state->hdmi_edid.edid, 0, 256);
1922                 if (e->blocks)
1923                         state->hdmi_edid.present |= mask;
1924                 else
1925                         state->hdmi_edid.present &= ~mask;
1926                 memcpy(&state->hdmi_edid.edid, e->edid, 128*e->blocks);
1927                 err = edid_write_hdmi_segment(sd, e->pad);
1928         }
1929         if (err < 0)
1930                 v4l2_err(sd, "error %d writing edid on port %d\n", err, e->pad);
1931         return err;
1932 }
1933
1934 /*********** avi info frame CEA-861-E **************/
1935 /* TODO move to common library */
1936
1937 struct avi_info_frame {
1938         uint8_t f17;
1939         uint8_t y10;
1940         uint8_t a0;
1941         uint8_t b10;
1942         uint8_t s10;
1943         uint8_t c10;
1944         uint8_t m10;
1945         uint8_t r3210;
1946         uint8_t itc;
1947         uint8_t ec210;
1948         uint8_t q10;
1949         uint8_t sc10;
1950         uint8_t f47;
1951         uint8_t vic;
1952         uint8_t yq10;
1953         uint8_t cn10;
1954         uint8_t pr3210;
1955         uint16_t etb;
1956         uint16_t sbb;
1957         uint16_t elb;
1958         uint16_t srb;
1959 };
1960
1961 static const char *y10_txt[4] = {
1962         "RGB",
1963         "YCbCr 4:2:2",
1964         "YCbCr 4:4:4",
1965         "Future",
1966 };
1967
1968 static const char *c10_txt[4] = {
1969         "No Data",
1970         "SMPTE 170M",
1971         "ITU-R 709",
1972         "Extended Colorimetry information valied",
1973 };
1974
1975 static const char *itc_txt[2] = {
1976         "No Data",
1977         "IT content",
1978 };
1979
1980 static const char *ec210_txt[8] = {
1981         "xvYCC601",
1982         "xvYCC709",
1983         "sYCC601",
1984         "AdobeYCC601",
1985         "AdobeRGB",
1986         "5 reserved",
1987         "6 reserved",
1988         "7 reserved",
1989 };
1990
1991 static const char *q10_txt[4] = {
1992         "Default",
1993         "Limited Range",
1994         "Full Range",
1995         "Reserved",
1996 };
1997
1998 static void parse_avi_infoframe(struct v4l2_subdev *sd, uint8_t *buf,
1999                                 struct avi_info_frame *avi)
2000 {
2001         avi->f17 = (buf[1] >> 7) & 0x1;
2002         avi->y10 = (buf[1] >> 5) & 0x3;
2003         avi->a0 = (buf[1] >> 4) & 0x1;
2004         avi->b10 = (buf[1] >> 2) & 0x3;
2005         avi->s10 = buf[1] & 0x3;
2006         avi->c10 = (buf[2] >> 6) & 0x3;
2007         avi->m10 = (buf[2] >> 4) & 0x3;
2008         avi->r3210 = buf[2] & 0xf;
2009         avi->itc = (buf[3] >> 7) & 0x1;
2010         avi->ec210 = (buf[3] >> 4) & 0x7;
2011         avi->q10 = (buf[3] >> 2) & 0x3;
2012         avi->sc10 = buf[3] & 0x3;
2013         avi->f47 = (buf[4] >> 7) & 0x1;
2014         avi->vic = buf[4] & 0x7f;
2015         avi->yq10 = (buf[5] >> 6) & 0x3;
2016         avi->cn10 = (buf[5] >> 4) & 0x3;
2017         avi->pr3210 = buf[5] & 0xf;
2018         avi->etb = buf[6] + 256*buf[7];
2019         avi->sbb = buf[8] + 256*buf[9];
2020         avi->elb = buf[10] + 256*buf[11];
2021         avi->srb = buf[12] + 256*buf[13];
2022 }
2023
2024 static void print_avi_infoframe(struct v4l2_subdev *sd)
2025 {
2026         int i;
2027         uint8_t buf[14];
2028         uint8_t avi_inf_len;
2029         struct avi_info_frame avi;
2030
2031         if (!(hdmi_read(sd, 0x05) & 0x80)) {
2032                 v4l2_info(sd, "receive DVI-D signal (AVI infoframe not supported)\n");
2033                 return;
2034         }
2035         if (!(io_read(sd, 0x60) & 0x01)) {
2036                 v4l2_info(sd, "AVI infoframe not received\n");
2037                 return;
2038         }
2039
2040         if (io_read(sd, 0x88) & 0x10) {
2041                 /* Note: the ADV7842 calculated incorrect checksums for InfoFrames
2042                    with a length of 14 or 15. See the ADV7842 Register Settings
2043                    Recommendations document for more details. */
2044                 v4l2_info(sd, "AVI infoframe checksum error\n");
2045                 return;
2046         }
2047
2048         avi_inf_len = infoframe_read(sd, 0xe2);
2049         v4l2_info(sd, "AVI infoframe version %d (%d byte)\n",
2050                   infoframe_read(sd, 0xe1), avi_inf_len);
2051
2052         if (infoframe_read(sd, 0xe1) != 0x02)
2053                 return;
2054
2055         for (i = 0; i < 14; i++)
2056                 buf[i] = infoframe_read(sd, i);
2057
2058         v4l2_info(sd, "\t%02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
2059                   buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], buf[6], buf[7],
2060                   buf[8], buf[9], buf[10], buf[11], buf[12], buf[13]);
2061
2062         parse_avi_infoframe(sd, buf, &avi);
2063
2064         if (avi.vic)
2065                 v4l2_info(sd, "\tVIC: %d\n", avi.vic);
2066         if (avi.itc)
2067                 v4l2_info(sd, "\t%s\n", itc_txt[avi.itc]);
2068
2069         if (avi.y10)
2070                 v4l2_info(sd, "\t%s %s\n", y10_txt[avi.y10], !avi.c10 ? "" :
2071                         (avi.c10 == 0x3 ? ec210_txt[avi.ec210] : c10_txt[avi.c10]));
2072         else
2073                 v4l2_info(sd, "\t%s %s\n", y10_txt[avi.y10], q10_txt[avi.q10]);
2074 }
2075
2076 static const char * const prim_mode_txt[] = {
2077         "SDP",
2078         "Component",
2079         "Graphics",
2080         "Reserved",
2081         "CVBS & HDMI AUDIO",
2082         "HDMI-Comp",
2083         "HDMI-GR",
2084         "Reserved",
2085         "Reserved",
2086         "Reserved",
2087         "Reserved",
2088         "Reserved",
2089         "Reserved",
2090         "Reserved",
2091         "Reserved",
2092         "Reserved",
2093 };
2094
2095 static int adv7842_sdp_log_status(struct v4l2_subdev *sd)
2096 {
2097         /* SDP (Standard definition processor) block */
2098         uint8_t sdp_signal_detected = sdp_read(sd, 0x5A) & 0x01;
2099
2100         v4l2_info(sd, "Chip powered %s\n", no_power(sd) ? "off" : "on");
2101         v4l2_info(sd, "Prim-mode = 0x%x, video std = 0x%x\n",
2102                   io_read(sd, 0x01) & 0x0f, io_read(sd, 0x00) & 0x3f);
2103
2104         v4l2_info(sd, "SDP: free run: %s\n",
2105                 (sdp_read(sd, 0x56) & 0x01) ? "on" : "off");
2106         v4l2_info(sd, "SDP: %s\n", sdp_signal_detected ?
2107                 "valid SD/PR signal detected" : "invalid/no signal");
2108         if (sdp_signal_detected) {
2109                 static const char * const sdp_std_txt[] = {
2110                         "NTSC-M/J",
2111                         "1?",
2112                         "NTSC-443",
2113                         "60HzSECAM",
2114                         "PAL-M",
2115                         "5?",
2116                         "PAL-60",
2117                         "7?", "8?", "9?", "a?", "b?",
2118                         "PAL-CombN",
2119                         "d?",
2120                         "PAL-BGHID",
2121                         "SECAM"
2122                 };
2123                 v4l2_info(sd, "SDP: standard %s\n",
2124                         sdp_std_txt[sdp_read(sd, 0x52) & 0x0f]);
2125                 v4l2_info(sd, "SDP: %s\n",
2126                         (sdp_read(sd, 0x59) & 0x08) ? "50Hz" : "60Hz");
2127                 v4l2_info(sd, "SDP: %s\n",
2128                         (sdp_read(sd, 0x57) & 0x08) ? "Interlaced" : "Progressive");
2129                 v4l2_info(sd, "SDP: deinterlacer %s\n",
2130                         (sdp_read(sd, 0x12) & 0x08) ? "enabled" : "disabled");
2131                 v4l2_info(sd, "SDP: csc %s mode\n",
2132                         (sdp_io_read(sd, 0xe0) & 0x40) ? "auto" : "manual");
2133         }
2134         return 0;
2135 }
2136
2137 static int adv7842_cp_log_status(struct v4l2_subdev *sd)
2138 {
2139         /* CP block */
2140         struct adv7842_state *state = to_state(sd);
2141         struct v4l2_dv_timings timings;
2142         uint8_t reg_io_0x02 = io_read(sd, 0x02);
2143         uint8_t reg_io_0x21 = io_read(sd, 0x21);
2144         uint8_t reg_rep_0x77 = rep_read(sd, 0x77);
2145         uint8_t reg_rep_0x7d = rep_read(sd, 0x7d);
2146         bool audio_pll_locked = hdmi_read(sd, 0x04) & 0x01;
2147         bool audio_sample_packet_detect = hdmi_read(sd, 0x18) & 0x01;
2148         bool audio_mute = io_read(sd, 0x65) & 0x40;
2149
2150         static const char * const csc_coeff_sel_rb[16] = {
2151                 "bypassed", "YPbPr601 -> RGB", "reserved", "YPbPr709 -> RGB",
2152                 "reserved", "RGB -> YPbPr601", "reserved", "RGB -> YPbPr709",
2153                 "reserved", "YPbPr709 -> YPbPr601", "YPbPr601 -> YPbPr709",
2154                 "reserved", "reserved", "reserved", "reserved", "manual"
2155         };
2156         static const char * const input_color_space_txt[16] = {
2157                 "RGB limited range (16-235)", "RGB full range (0-255)",
2158                 "YCbCr Bt.601 (16-235)", "YCbCr Bt.709 (16-235)",
2159                 "XvYCC Bt.601", "XvYCC Bt.709",
2160                 "YCbCr Bt.601 (0-255)", "YCbCr Bt.709 (0-255)",
2161                 "invalid", "invalid", "invalid", "invalid", "invalid",
2162                 "invalid", "invalid", "automatic"
2163         };
2164         static const char * const rgb_quantization_range_txt[] = {
2165                 "Automatic",
2166                 "RGB limited range (16-235)",
2167                 "RGB full range (0-255)",
2168         };
2169         static const char * const deep_color_mode_txt[4] = {
2170                 "8-bits per channel",
2171                 "10-bits per channel",
2172                 "12-bits per channel",
2173                 "16-bits per channel (not supported)"
2174         };
2175
2176         v4l2_info(sd, "-----Chip status-----\n");
2177         v4l2_info(sd, "Chip power: %s\n", no_power(sd) ? "off" : "on");
2178         v4l2_info(sd, "Connector type: %s\n", state->connector_hdmi ?
2179                         "HDMI" : (is_digital_input(sd) ? "DVI-D" : "DVI-A"));
2180         v4l2_info(sd, "HDMI/DVI-D port selected: %s\n",
2181                         state->hdmi_port_a ? "A" : "B");
2182         v4l2_info(sd, "EDID A %s, B %s\n",
2183                   ((reg_rep_0x7d & 0x04) && (reg_rep_0x77 & 0x04)) ?
2184                   "enabled" : "disabled",
2185                   ((reg_rep_0x7d & 0x08) && (reg_rep_0x77 & 0x08)) ?
2186                   "enabled" : "disabled");
2187         v4l2_info(sd, "HPD A %s, B %s\n",
2188                   reg_io_0x21 & 0x02 ? "enabled" : "disabled",
2189                   reg_io_0x21 & 0x01 ? "enabled" : "disabled");
2190         v4l2_info(sd, "CEC %s\n", !!(cec_read(sd, 0x2a) & 0x01) ?
2191                         "enabled" : "disabled");
2192
2193         v4l2_info(sd, "-----Signal status-----\n");
2194         if (state->hdmi_port_a) {
2195                 v4l2_info(sd, "Cable detected (+5V power): %s\n",
2196                           io_read(sd, 0x6f) & 0x02 ? "true" : "false");
2197                 v4l2_info(sd, "TMDS signal detected: %s\n",
2198                           (io_read(sd, 0x6a) & 0x02) ? "true" : "false");
2199                 v4l2_info(sd, "TMDS signal locked: %s\n",
2200                           (io_read(sd, 0x6a) & 0x20) ? "true" : "false");
2201         } else {
2202                 v4l2_info(sd, "Cable detected (+5V power):%s\n",
2203                           io_read(sd, 0x6f) & 0x01 ? "true" : "false");
2204                 v4l2_info(sd, "TMDS signal detected: %s\n",
2205                           (io_read(sd, 0x6a) & 0x01) ? "true" : "false");
2206                 v4l2_info(sd, "TMDS signal locked: %s\n",
2207                           (io_read(sd, 0x6a) & 0x10) ? "true" : "false");
2208         }
2209         v4l2_info(sd, "CP free run: %s\n",
2210                   (!!(cp_read(sd, 0xff) & 0x10) ? "on" : "off"));
2211         v4l2_info(sd, "Prim-mode = 0x%x, video std = 0x%x, v_freq = 0x%x\n",
2212                   io_read(sd, 0x01) & 0x0f, io_read(sd, 0x00) & 0x3f,
2213                   (io_read(sd, 0x01) & 0x70) >> 4);
2214
2215         v4l2_info(sd, "-----Video Timings-----\n");
2216         if (no_cp_signal(sd)) {
2217                 v4l2_info(sd, "STDI: not locked\n");
2218         } else {
2219                 uint32_t bl = ((cp_read(sd, 0xb1) & 0x3f) << 8) | cp_read(sd, 0xb2);
2220                 uint32_t lcf = ((cp_read(sd, 0xb3) & 0x7) << 8) | cp_read(sd, 0xb4);
2221                 uint32_t lcvs = cp_read(sd, 0xb3) >> 3;
2222                 uint32_t fcl = ((cp_read(sd, 0xb8) & 0x1f) << 8) | cp_read(sd, 0xb9);
2223                 char hs_pol = ((cp_read(sd, 0xb5) & 0x10) ?
2224                                 ((cp_read(sd, 0xb5) & 0x08) ? '+' : '-') : 'x');
2225                 char vs_pol = ((cp_read(sd, 0xb5) & 0x40) ?
2226                                 ((cp_read(sd, 0xb5) & 0x20) ? '+' : '-') : 'x');
2227                 v4l2_info(sd,
2228                         "STDI: lcf (frame height - 1) = %d, bl = %d, lcvs (vsync) = %d, fcl = %d, %s, %chsync, %cvsync\n",
2229                         lcf, bl, lcvs, fcl,
2230                         (cp_read(sd, 0xb1) & 0x40) ?
2231                                 "interlaced" : "progressive",
2232                         hs_pol, vs_pol);
2233         }
2234         if (adv7842_query_dv_timings(sd, &timings))
2235                 v4l2_info(sd, "No video detected\n");
2236         else
2237                 v4l2_print_dv_timings(sd->name, "Detected format: ",
2238                                       &timings, true);
2239         v4l2_print_dv_timings(sd->name, "Configured format: ",
2240                         &state->timings, true);
2241
2242         if (no_cp_signal(sd))
2243                 return 0;
2244
2245         v4l2_info(sd, "-----Color space-----\n");
2246         v4l2_info(sd, "RGB quantization range ctrl: %s\n",
2247                   rgb_quantization_range_txt[state->rgb_quantization_range]);
2248         v4l2_info(sd, "Input color space: %s\n",
2249                   input_color_space_txt[reg_io_0x02 >> 4]);
2250         v4l2_info(sd, "Output color space: %s %s, saturator %s\n",
2251                   (reg_io_0x02 & 0x02) ? "RGB" : "YCbCr",
2252                   (reg_io_0x02 & 0x04) ? "(16-235)" : "(0-255)",
2253                   ((reg_io_0x02 & 0x04) ^ (reg_io_0x02 & 0x01)) ?
2254                                         "enabled" : "disabled");
2255         v4l2_info(sd, "Color space conversion: %s\n",
2256                   csc_coeff_sel_rb[cp_read(sd, 0xf4) >> 4]);
2257
2258         if (!is_digital_input(sd))
2259                 return 0;
2260
2261         v4l2_info(sd, "-----%s status-----\n", is_hdmi(sd) ? "HDMI" : "DVI-D");
2262         v4l2_info(sd, "HDCP encrypted content: %s\n",
2263                         (hdmi_read(sd, 0x05) & 0x40) ? "true" : "false");
2264         v4l2_info(sd, "HDCP keys read: %s%s\n",
2265                         (hdmi_read(sd, 0x04) & 0x20) ? "yes" : "no",
2266                         (hdmi_read(sd, 0x04) & 0x10) ? "ERROR" : "");
2267         if (!is_hdmi(sd))
2268                 return 0;
2269
2270         v4l2_info(sd, "Audio: pll %s, samples %s, %s\n",
2271                         audio_pll_locked ? "locked" : "not locked",
2272                         audio_sample_packet_detect ? "detected" : "not detected",
2273                         audio_mute ? "muted" : "enabled");
2274         if (audio_pll_locked && audio_sample_packet_detect) {
2275                 v4l2_info(sd, "Audio format: %s\n",
2276                         (hdmi_read(sd, 0x07) & 0x40) ? "multi-channel" : "stereo");
2277         }
2278         v4l2_info(sd, "Audio CTS: %u\n", (hdmi_read(sd, 0x5b) << 12) +
2279                         (hdmi_read(sd, 0x5c) << 8) +
2280                         (hdmi_read(sd, 0x5d) & 0xf0));
2281         v4l2_info(sd, "Audio N: %u\n", ((hdmi_read(sd, 0x5d) & 0x0f) << 16) +
2282                         (hdmi_read(sd, 0x5e) << 8) +
2283                         hdmi_read(sd, 0x5f));
2284         v4l2_info(sd, "AV Mute: %s\n",
2285                         (hdmi_read(sd, 0x04) & 0x40) ? "on" : "off");
2286         v4l2_info(sd, "Deep color mode: %s\n",
2287                         deep_color_mode_txt[hdmi_read(sd, 0x0b) >> 6]);
2288
2289         print_avi_infoframe(sd);
2290         return 0;
2291 }
2292
2293 static int adv7842_log_status(struct v4l2_subdev *sd)
2294 {
2295         struct adv7842_state *state = to_state(sd);
2296
2297         if (state->mode == ADV7842_MODE_SDP)
2298                 return adv7842_sdp_log_status(sd);
2299         return adv7842_cp_log_status(sd);
2300 }
2301
2302 static int adv7842_querystd(struct v4l2_subdev *sd, v4l2_std_id *std)
2303 {
2304         struct adv7842_state *state = to_state(sd);
2305
2306         v4l2_dbg(1, debug, sd, "%s:\n", __func__);
2307
2308         if (state->mode != ADV7842_MODE_SDP)
2309                 return -ENODATA;
2310
2311         if (!(sdp_read(sd, 0x5A) & 0x01)) {
2312                 *std = 0;
2313                 v4l2_dbg(1, debug, sd, "%s: no valid signal\n", __func__);
2314                 return 0;
2315         }
2316
2317         switch (sdp_read(sd, 0x52) & 0x0f) {
2318         case 0:
2319                 /* NTSC-M/J */
2320                 *std &= V4L2_STD_NTSC;
2321                 break;
2322         case 2:
2323                 /* NTSC-443 */
2324                 *std &= V4L2_STD_NTSC_443;
2325                 break;
2326         case 3:
2327                 /* 60HzSECAM */
2328                 *std &= V4L2_STD_SECAM;
2329                 break;
2330         case 4:
2331                 /* PAL-M */
2332                 *std &= V4L2_STD_PAL_M;
2333                 break;
2334         case 6:
2335                 /* PAL-60 */
2336                 *std &= V4L2_STD_PAL_60;
2337                 break;
2338         case 0xc:
2339                 /* PAL-CombN */
2340                 *std &= V4L2_STD_PAL_Nc;
2341                 break;
2342         case 0xe:
2343                 /* PAL-BGHID */
2344                 *std &= V4L2_STD_PAL;
2345                 break;
2346         case 0xf:
2347                 /* SECAM */
2348                 *std &= V4L2_STD_SECAM;
2349                 break;
2350         default:
2351                 *std &= V4L2_STD_ALL;
2352                 break;
2353         }
2354         return 0;
2355 }
2356
2357 static int adv7842_s_std(struct v4l2_subdev *sd, v4l2_std_id norm)
2358 {
2359         struct adv7842_state *state = to_state(sd);
2360
2361         v4l2_dbg(1, debug, sd, "%s:\n", __func__);
2362
2363         if (state->mode != ADV7842_MODE_SDP)
2364                 return -ENODATA;
2365
2366         if (norm & V4L2_STD_ALL) {
2367                 state->norm = norm;
2368                 return 0;
2369         }
2370         return -EINVAL;
2371 }
2372
2373 static int adv7842_g_std(struct v4l2_subdev *sd, v4l2_std_id *norm)
2374 {
2375         struct adv7842_state *state = to_state(sd);
2376
2377         v4l2_dbg(1, debug, sd, "%s:\n", __func__);
2378
2379         if (state->mode != ADV7842_MODE_SDP)
2380                 return -ENODATA;
2381
2382         *norm = state->norm;
2383         return 0;
2384 }
2385
2386 /* ----------------------------------------------------------------------- */
2387
2388 static int adv7842_core_init(struct v4l2_subdev *sd,
2389                 const struct adv7842_platform_data *pdata)
2390 {
2391         hdmi_write(sd, 0x48,
2392                    (pdata->disable_pwrdnb ? 0x80 : 0) |
2393                    (pdata->disable_cable_det_rst ? 0x40 : 0));
2394
2395         disable_input(sd);
2396
2397         /* power */
2398         io_write(sd, 0x0c, 0x42);   /* Power up part and power down VDP */
2399         io_write(sd, 0x15, 0x80);   /* Power up pads */
2400
2401         /* video format */
2402         io_write(sd, 0x02,
2403                  pdata->inp_color_space << 4 |
2404                  pdata->alt_gamma << 3 |
2405                  pdata->op_656_range << 2 |
2406                  pdata->rgb_out << 1 |
2407                  pdata->alt_data_sat << 0);
2408         io_write(sd, 0x03, pdata->op_format_sel);
2409         io_write_and_or(sd, 0x04, 0x1f, pdata->op_ch_sel << 5);
2410         io_write_and_or(sd, 0x05, 0xf0, pdata->blank_data << 3 |
2411                         pdata->insert_av_codes << 2 |
2412                         pdata->replicate_av_codes << 1 |
2413                         pdata->invert_cbcr << 0);
2414
2415         /* Drive strength */
2416         io_write_and_or(sd, 0x14, 0xc0, pdata->drive_strength.data<<4 |
2417                         pdata->drive_strength.clock<<2 |
2418                         pdata->drive_strength.sync);
2419
2420         /* HDMI free run */
2421         cp_write(sd, 0xba, (pdata->hdmi_free_run_mode << 1) | 0x01);
2422
2423         /* TODO from platform data */
2424         cp_write(sd, 0x69, 0x14);   /* Enable CP CSC */
2425         io_write(sd, 0x06, 0xa6);   /* positive VS and HS and DE */
2426         cp_write(sd, 0xf3, 0xdc); /* Low threshold to enter/exit free run mode */
2427         afe_write(sd, 0xb5, 0x01);  /* Setting MCLK to 256Fs */
2428
2429         afe_write(sd, 0x02, pdata->ain_sel); /* Select analog input muxing mode */
2430         io_write_and_or(sd, 0x30, ~(1 << 4), pdata->output_bus_lsb_to_msb << 4);
2431
2432         sdp_csc_coeff(sd, &pdata->sdp_csc_coeff);
2433
2434         if (pdata->sdp_io_sync.adjust) {
2435                 const struct adv7842_sdp_io_sync_adjustment *s = &pdata->sdp_io_sync;
2436                 sdp_io_write(sd, 0x94, (s->hs_beg>>8) & 0xf);
2437                 sdp_io_write(sd, 0x95, s->hs_beg & 0xff);
2438                 sdp_io_write(sd, 0x96, (s->hs_width>>8) & 0xf);
2439                 sdp_io_write(sd, 0x97, s->hs_width & 0xff);
2440                 sdp_io_write(sd, 0x98, (s->de_beg>>8) & 0xf);
2441                 sdp_io_write(sd, 0x99, s->de_beg & 0xff);
2442                 sdp_io_write(sd, 0x9a, (s->de_end>>8) & 0xf);
2443                 sdp_io_write(sd, 0x9b, s->de_end & 0xff);
2444         }
2445
2446         /* todo, improve settings for sdram */
2447         if (pdata->sd_ram_size >= 128) {
2448                 sdp_write(sd, 0x12, 0x0d); /* Frame TBC,3D comb enabled */
2449                 if (pdata->sd_ram_ddr) {
2450                         /* SDP setup for the AD eval board */
2451                         sdp_io_write(sd, 0x6f, 0x00); /* DDR mode */
2452                         sdp_io_write(sd, 0x75, 0x0a); /* 128 MB memory size */
2453                         sdp_io_write(sd, 0x7a, 0xa5); /* Timing Adjustment */
2454                         sdp_io_write(sd, 0x7b, 0x8f); /* Timing Adjustment */
2455                         sdp_io_write(sd, 0x60, 0x01); /* SDRAM reset */
2456                 } else {
2457                         sdp_io_write(sd, 0x75, 0x0a); /* 64 MB memory size ?*/
2458                         sdp_io_write(sd, 0x74, 0x00); /* must be zero for sdr sdram */
2459                         sdp_io_write(sd, 0x79, 0x33); /* CAS latency to 3,
2460                                                          depends on memory */
2461                         sdp_io_write(sd, 0x6f, 0x01); /* SDR mode */
2462                         sdp_io_write(sd, 0x7a, 0xa5); /* Timing Adjustment */
2463                         sdp_io_write(sd, 0x7b, 0x8f); /* Timing Adjustment */
2464                         sdp_io_write(sd, 0x60, 0x01); /* SDRAM reset */
2465                 }
2466         } else {
2467                 /*
2468                  * Manual UG-214, rev 0 is bit confusing on this bit
2469                  * but a '1' disables any signal if the Ram is active.
2470                  */
2471                 sdp_io_write(sd, 0x29, 0x10); /* Tristate memory interface */
2472         }
2473
2474         select_input(sd, pdata->vid_std_select);
2475
2476         enable_input(sd);
2477
2478         /* disable I2C access to internal EDID ram from HDMI DDC ports */
2479         rep_write_and_or(sd, 0x77, 0xf3, 0x00);
2480
2481         hdmi_write(sd, 0x69, 0xa3); /* HPA manual */
2482         /* HPA disable on port A and B */
2483         io_write_and_or(sd, 0x20, 0xcf, 0x00);
2484
2485         /* LLC */
2486         /* Set phase to 16. TODO: get this from platform_data */
2487         io_write(sd, 0x19, 0x90);
2488         io_write(sd, 0x33, 0x40);
2489
2490         /* interrupts */
2491         io_write(sd, 0x40, 0xe2); /* Configure INT1 */
2492
2493         adv7842_irq_enable(sd, true);
2494
2495         return v4l2_ctrl_handler_setup(sd->ctrl_handler);
2496 }
2497
2498 /* ----------------------------------------------------------------------- */
2499
2500 static int adv7842_ddr_ram_test(struct v4l2_subdev *sd)
2501 {
2502         /*
2503          * From ADV784x external Memory test.pdf
2504          *
2505          * Reset must just been performed before running test.
2506          * Recommended to reset after test.
2507          */
2508         int i;
2509         int pass = 0;
2510         int fail = 0;
2511         int complete = 0;
2512
2513         io_write(sd, 0x00, 0x01);  /* Program SDP 4x1 */
2514         io_write(sd, 0x01, 0x00);  /* Program SDP mode */
2515         afe_write(sd, 0x80, 0x92); /* SDP Recommeneded Write */
2516         afe_write(sd, 0x9B, 0x01); /* SDP Recommeneded Write ADV7844ES1 */
2517         afe_write(sd, 0x9C, 0x60); /* SDP Recommeneded Write ADV7844ES1 */
2518         afe_write(sd, 0x9E, 0x02); /* SDP Recommeneded Write ADV7844ES1 */
2519         afe_write(sd, 0xA0, 0x0B); /* SDP Recommeneded Write ADV7844ES1 */
2520         afe_write(sd, 0xC3, 0x02); /* Memory BIST Initialisation */
2521         io_write(sd, 0x0C, 0x40);  /* Power up ADV7844 */
2522         io_write(sd, 0x15, 0xBA);  /* Enable outputs */
2523         sdp_write(sd, 0x12, 0x00); /* Disable 3D comb, Frame TBC & 3DNR */
2524         io_write(sd, 0xFF, 0x04);  /* Reset memory controller */
2525
2526         mdelay(5);
2527
2528         sdp_write(sd, 0x12, 0x00);    /* Disable 3D Comb, Frame TBC & 3DNR */
2529         sdp_io_write(sd, 0x2A, 0x01); /* Memory BIST Initialisation */
2530         sdp_io_write(sd, 0x7c, 0x19); /* Memory BIST Initialisation */
2531         sdp_io_write(sd, 0x80, 0x87); /* Memory BIST Initialisation */
2532         sdp_io_write(sd, 0x81, 0x4a); /* Memory BIST Initialisation */
2533         sdp_io_write(sd, 0x82, 0x2c); /* Memory BIST Initialisation */
2534         sdp_io_write(sd, 0x83, 0x0e); /* Memory BIST Initialisation */
2535         sdp_io_write(sd, 0x84, 0x94); /* Memory BIST Initialisation */
2536         sdp_io_write(sd, 0x85, 0x62); /* Memory BIST Initialisation */
2537         sdp_io_write(sd, 0x7d, 0x00); /* Memory BIST Initialisation */
2538         sdp_io_write(sd, 0x7e, 0x1a); /* Memory BIST Initialisation */
2539
2540         mdelay(5);
2541
2542         sdp_io_write(sd, 0xd9, 0xd5); /* Enable BIST Test */
2543         sdp_write(sd, 0x12, 0x05); /* Enable FRAME TBC & 3D COMB */
2544
2545         mdelay(20);
2546
2547         for (i = 0; i < 10; i++) {
2548                 u8 result = sdp_io_read(sd, 0xdb);
2549                 if (result & 0x10) {
2550                         complete++;
2551                         if (result & 0x20)
2552                                 fail++;
2553                         else
2554                                 pass++;
2555                 }
2556                 mdelay(20);
2557         }
2558
2559         v4l2_dbg(1, debug, sd,
2560                 "Ram Test: completed %d of %d: pass %d, fail %d\n",
2561                 complete, i, pass, fail);
2562
2563         if (!complete || fail)
2564                 return -EIO;
2565         return 0;
2566 }
2567
2568 static void adv7842_rewrite_i2c_addresses(struct v4l2_subdev *sd,
2569                 struct adv7842_platform_data *pdata)
2570 {
2571         io_write(sd, 0xf1, pdata->i2c_sdp << 1);
2572         io_write(sd, 0xf2, pdata->i2c_sdp_io << 1);
2573         io_write(sd, 0xf3, pdata->i2c_avlink << 1);
2574         io_write(sd, 0xf4, pdata->i2c_cec << 1);
2575         io_write(sd, 0xf5, pdata->i2c_infoframe << 1);
2576
2577         io_write(sd, 0xf8, pdata->i2c_afe << 1);
2578         io_write(sd, 0xf9, pdata->i2c_repeater << 1);
2579         io_write(sd, 0xfa, pdata->i2c_edid << 1);
2580         io_write(sd, 0xfb, pdata->i2c_hdmi << 1);
2581
2582         io_write(sd, 0xfd, pdata->i2c_cp << 1);
2583         io_write(sd, 0xfe, pdata->i2c_vdp << 1);
2584 }
2585
2586 static int adv7842_command_ram_test(struct v4l2_subdev *sd)
2587 {
2588         struct i2c_client *client = v4l2_get_subdevdata(sd);
2589         struct adv7842_state *state = to_state(sd);
2590         struct adv7842_platform_data *pdata = client->dev.platform_data;
2591         int ret = 0;
2592
2593         if (!pdata)
2594                 return -ENODEV;
2595
2596         if (!pdata->sd_ram_size || !pdata->sd_ram_ddr) {
2597                 v4l2_info(sd, "no sdram or no ddr sdram\n");
2598                 return -EINVAL;
2599         }
2600
2601         main_reset(sd);
2602
2603         adv7842_rewrite_i2c_addresses(sd, pdata);
2604
2605         /* run ram test */
2606         ret = adv7842_ddr_ram_test(sd);
2607
2608         main_reset(sd);
2609
2610         adv7842_rewrite_i2c_addresses(sd, pdata);
2611
2612         /* and re-init chip and state */
2613         adv7842_core_init(sd, pdata);
2614
2615         disable_input(sd);
2616
2617         select_input(sd, state->vid_std_select);
2618
2619         enable_input(sd);
2620
2621         adv7842_s_dv_timings(sd, &state->timings);
2622
2623         edid_write_vga_segment(sd);
2624         edid_write_hdmi_segment(sd, 0);
2625         edid_write_hdmi_segment(sd, 1);
2626
2627         return ret;
2628 }
2629
2630 static long adv7842_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
2631 {
2632         switch (cmd) {
2633         case ADV7842_CMD_RAM_TEST:
2634                 return adv7842_command_ram_test(sd);
2635         }
2636         return -ENOTTY;
2637 }
2638
2639 /* ----------------------------------------------------------------------- */
2640
2641 static const struct v4l2_ctrl_ops adv7842_ctrl_ops = {
2642         .s_ctrl = adv7842_s_ctrl,
2643 };
2644
2645 static const struct v4l2_subdev_core_ops adv7842_core_ops = {
2646         .log_status = adv7842_log_status,
2647         .g_std = adv7842_g_std,
2648         .s_std = adv7842_s_std,
2649         .ioctl = adv7842_ioctl,
2650         .interrupt_service_routine = adv7842_isr,
2651 #ifdef CONFIG_VIDEO_ADV_DEBUG
2652         .g_register = adv7842_g_register,
2653         .s_register = adv7842_s_register,
2654 #endif
2655 };
2656
2657 static const struct v4l2_subdev_video_ops adv7842_video_ops = {
2658         .s_routing = adv7842_s_routing,
2659         .querystd = adv7842_querystd,
2660         .g_input_status = adv7842_g_input_status,
2661         .s_dv_timings = adv7842_s_dv_timings,
2662         .g_dv_timings = adv7842_g_dv_timings,
2663         .query_dv_timings = adv7842_query_dv_timings,
2664         .enum_dv_timings = adv7842_enum_dv_timings,
2665         .dv_timings_cap = adv7842_dv_timings_cap,
2666         .enum_mbus_fmt = adv7842_enum_mbus_fmt,
2667         .g_mbus_fmt = adv7842_g_mbus_fmt,
2668         .try_mbus_fmt = adv7842_g_mbus_fmt,
2669         .s_mbus_fmt = adv7842_g_mbus_fmt,
2670 };
2671
2672 static const struct v4l2_subdev_pad_ops adv7842_pad_ops = {
2673         .set_edid = adv7842_set_edid,
2674 };
2675
2676 static const struct v4l2_subdev_ops adv7842_ops = {
2677         .core = &adv7842_core_ops,
2678         .video = &adv7842_video_ops,
2679         .pad = &adv7842_pad_ops,
2680 };
2681
2682 /* -------------------------- custom ctrls ---------------------------------- */
2683
2684 static const struct v4l2_ctrl_config adv7842_ctrl_analog_sampling_phase = {
2685         .ops = &adv7842_ctrl_ops,
2686         .id = V4L2_CID_ADV_RX_ANALOG_SAMPLING_PHASE,
2687         .name = "Analog Sampling Phase",
2688         .type = V4L2_CTRL_TYPE_INTEGER,
2689         .min = 0,
2690         .max = 0x1f,
2691         .step = 1,
2692         .def = 0,
2693 };
2694
2695 static const struct v4l2_ctrl_config adv7842_ctrl_free_run_color_manual = {
2696         .ops = &adv7842_ctrl_ops,
2697         .id = V4L2_CID_ADV_RX_FREE_RUN_COLOR_MANUAL,
2698         .name = "Free Running Color, Manual",
2699         .type = V4L2_CTRL_TYPE_BOOLEAN,
2700         .max = 1,
2701         .step = 1,
2702         .def = 1,
2703 };
2704
2705 static const struct v4l2_ctrl_config adv7842_ctrl_free_run_color = {
2706         .ops = &adv7842_ctrl_ops,
2707         .id = V4L2_CID_ADV_RX_FREE_RUN_COLOR,
2708         .name = "Free Running Color",
2709         .type = V4L2_CTRL_TYPE_INTEGER,
2710         .max = 0xffffff,
2711         .step = 0x1,
2712 };
2713
2714
2715 static void adv7842_unregister_clients(struct adv7842_state *state)
2716 {
2717         if (state->i2c_avlink)
2718                 i2c_unregister_device(state->i2c_avlink);
2719         if (state->i2c_cec)
2720                 i2c_unregister_device(state->i2c_cec);
2721         if (state->i2c_infoframe)
2722                 i2c_unregister_device(state->i2c_infoframe);
2723         if (state->i2c_sdp_io)
2724                 i2c_unregister_device(state->i2c_sdp_io);
2725         if (state->i2c_sdp)
2726                 i2c_unregister_device(state->i2c_sdp);
2727         if (state->i2c_afe)
2728                 i2c_unregister_device(state->i2c_afe);
2729         if (state->i2c_repeater)
2730                 i2c_unregister_device(state->i2c_repeater);
2731         if (state->i2c_edid)
2732                 i2c_unregister_device(state->i2c_edid);
2733         if (state->i2c_hdmi)
2734                 i2c_unregister_device(state->i2c_hdmi);
2735         if (state->i2c_cp)
2736                 i2c_unregister_device(state->i2c_cp);
2737         if (state->i2c_vdp)
2738                 i2c_unregister_device(state->i2c_vdp);
2739 }
2740
2741 static struct i2c_client *adv7842_dummy_client(struct v4l2_subdev *sd,
2742                                                u8 addr, u8 io_reg)
2743 {
2744         struct i2c_client *client = v4l2_get_subdevdata(sd);
2745
2746         io_write(sd, io_reg, addr << 1);
2747         return i2c_new_dummy(client->adapter, io_read(sd, io_reg) >> 1);
2748 }
2749
2750 static int adv7842_probe(struct i2c_client *client,
2751                          const struct i2c_device_id *id)
2752 {
2753         struct adv7842_state *state;
2754         struct adv7842_platform_data *pdata = client->dev.platform_data;
2755         struct v4l2_ctrl_handler *hdl;
2756         struct v4l2_subdev *sd;
2757         u16 rev;
2758         int err;
2759
2760         /* Check if the adapter supports the needed features */
2761         if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
2762                 return -EIO;
2763
2764         v4l_dbg(1, debug, client, "detecting adv7842 client on address 0x%x\n",
2765                 client->addr << 1);
2766
2767         if (!pdata) {
2768                 v4l_err(client, "No platform data!\n");
2769                 return -ENODEV;
2770         }
2771
2772         state = devm_kzalloc(&client->dev, sizeof(struct adv7842_state), GFP_KERNEL);
2773         if (!state) {
2774                 v4l_err(client, "Could not allocate adv7842_state memory!\n");
2775                 return -ENOMEM;
2776         }
2777
2778         sd = &state->sd;
2779         v4l2_i2c_subdev_init(sd, client, &adv7842_ops);
2780         sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
2781         state->connector_hdmi = pdata->connector_hdmi;
2782         state->mode = pdata->mode;
2783
2784         state->hdmi_port_a = true;
2785
2786         /* i2c access to adv7842? */
2787         rev = adv_smbus_read_byte_data_check(client, 0xea, false) << 8 |
2788                 adv_smbus_read_byte_data_check(client, 0xeb, false);
2789         if (rev != 0x2012) {
2790                 v4l2_info(sd, "got rev=0x%04x on first read attempt\n", rev);
2791                 rev = adv_smbus_read_byte_data_check(client, 0xea, false) << 8 |
2792                         adv_smbus_read_byte_data_check(client, 0xeb, false);
2793         }
2794         if (rev != 0x2012) {
2795                 v4l2_info(sd, "not an adv7842 on address 0x%x (rev=0x%04x)\n",
2796                           client->addr << 1, rev);
2797                 return -ENODEV;
2798         }
2799
2800         if (pdata->chip_reset)
2801                 main_reset(sd);
2802
2803         /* control handlers */
2804         hdl = &state->hdl;
2805         v4l2_ctrl_handler_init(hdl, 6);
2806
2807         /* add in ascending ID order */
2808         v4l2_ctrl_new_std(hdl, &adv7842_ctrl_ops,
2809                           V4L2_CID_BRIGHTNESS, -128, 127, 1, 0);
2810         v4l2_ctrl_new_std(hdl, &adv7842_ctrl_ops,
2811                           V4L2_CID_CONTRAST, 0, 255, 1, 128);
2812         v4l2_ctrl_new_std(hdl, &adv7842_ctrl_ops,
2813                           V4L2_CID_SATURATION, 0, 255, 1, 128);
2814         v4l2_ctrl_new_std(hdl, &adv7842_ctrl_ops,
2815                           V4L2_CID_HUE, 0, 128, 1, 0);
2816
2817         /* custom controls */
2818         state->detect_tx_5v_ctrl = v4l2_ctrl_new_std(hdl, NULL,
2819                         V4L2_CID_DV_RX_POWER_PRESENT, 0, 3, 0, 0);
2820         state->analog_sampling_phase_ctrl = v4l2_ctrl_new_custom(hdl,
2821                         &adv7842_ctrl_analog_sampling_phase, NULL);
2822         state->free_run_color_ctrl_manual = v4l2_ctrl_new_custom(hdl,
2823                         &adv7842_ctrl_free_run_color_manual, NULL);
2824         state->free_run_color_ctrl = v4l2_ctrl_new_custom(hdl,
2825                         &adv7842_ctrl_free_run_color, NULL);
2826         state->rgb_quantization_range_ctrl =
2827                 v4l2_ctrl_new_std_menu(hdl, &adv7842_ctrl_ops,
2828                         V4L2_CID_DV_RX_RGB_RANGE, V4L2_DV_RGB_RANGE_FULL,
2829                         0, V4L2_DV_RGB_RANGE_AUTO);
2830         sd->ctrl_handler = hdl;
2831         if (hdl->error) {
2832                 err = hdl->error;
2833                 goto err_hdl;
2834         }
2835         state->detect_tx_5v_ctrl->is_private = true;
2836         state->rgb_quantization_range_ctrl->is_private = true;
2837         state->analog_sampling_phase_ctrl->is_private = true;
2838         state->free_run_color_ctrl_manual->is_private = true;
2839         state->free_run_color_ctrl->is_private = true;
2840
2841         if (adv7842_s_detect_tx_5v_ctrl(sd)) {
2842                 err = -ENODEV;
2843                 goto err_hdl;
2844         }
2845
2846         state->i2c_avlink = adv7842_dummy_client(sd, pdata->i2c_avlink, 0xf3);
2847         state->i2c_cec = adv7842_dummy_client(sd, pdata->i2c_cec, 0xf4);
2848         state->i2c_infoframe = adv7842_dummy_client(sd, pdata->i2c_infoframe, 0xf5);
2849         state->i2c_sdp_io = adv7842_dummy_client(sd, pdata->i2c_sdp_io, 0xf2);
2850         state->i2c_sdp = adv7842_dummy_client(sd, pdata->i2c_sdp, 0xf1);
2851         state->i2c_afe = adv7842_dummy_client(sd, pdata->i2c_afe, 0xf8);
2852         state->i2c_repeater = adv7842_dummy_client(sd, pdata->i2c_repeater, 0xf9);
2853         state->i2c_edid = adv7842_dummy_client(sd, pdata->i2c_edid, 0xfa);
2854         state->i2c_hdmi = adv7842_dummy_client(sd, pdata->i2c_hdmi, 0xfb);
2855         state->i2c_cp = adv7842_dummy_client(sd, pdata->i2c_cp, 0xfd);
2856         state->i2c_vdp = adv7842_dummy_client(sd, pdata->i2c_vdp, 0xfe);
2857         if (!state->i2c_avlink || !state->i2c_cec || !state->i2c_infoframe ||
2858             !state->i2c_sdp_io || !state->i2c_sdp || !state->i2c_afe ||
2859             !state->i2c_repeater || !state->i2c_edid || !state->i2c_hdmi ||
2860             !state->i2c_cp || !state->i2c_vdp) {
2861                 err = -ENOMEM;
2862                 v4l2_err(sd, "failed to create all i2c clients\n");
2863                 goto err_i2c;
2864         }
2865
2866         /* work queues */
2867         state->work_queues = create_singlethread_workqueue(client->name);
2868         if (!state->work_queues) {
2869                 v4l2_err(sd, "Could not create work queue\n");
2870                 err = -ENOMEM;
2871                 goto err_i2c;
2872         }
2873
2874         INIT_DELAYED_WORK(&state->delayed_work_enable_hotplug,
2875                         adv7842_delayed_work_enable_hotplug);
2876
2877         state->pad.flags = MEDIA_PAD_FL_SOURCE;
2878         err = media_entity_init(&sd->entity, 1, &state->pad, 0);
2879         if (err)
2880                 goto err_work_queues;
2881
2882         err = adv7842_core_init(sd, pdata);
2883         if (err)
2884                 goto err_entity;
2885
2886         v4l2_info(sd, "%s found @ 0x%x (%s)\n", client->name,
2887                   client->addr << 1, client->adapter->name);
2888         return 0;
2889
2890 err_entity:
2891         media_entity_cleanup(&sd->entity);
2892 err_work_queues:
2893         cancel_delayed_work(&state->delayed_work_enable_hotplug);
2894         destroy_workqueue(state->work_queues);
2895 err_i2c:
2896         adv7842_unregister_clients(state);
2897 err_hdl:
2898         v4l2_ctrl_handler_free(hdl);
2899         return err;
2900 }
2901
2902 /* ----------------------------------------------------------------------- */
2903
2904 static int adv7842_remove(struct i2c_client *client)
2905 {
2906         struct v4l2_subdev *sd = i2c_get_clientdata(client);
2907         struct adv7842_state *state = to_state(sd);
2908
2909         adv7842_irq_enable(sd, false);
2910
2911         cancel_delayed_work(&state->delayed_work_enable_hotplug);
2912         destroy_workqueue(state->work_queues);
2913         v4l2_device_unregister_subdev(sd);
2914         media_entity_cleanup(&sd->entity);
2915         adv7842_unregister_clients(to_state(sd));
2916         v4l2_ctrl_handler_free(sd->ctrl_handler);
2917         return 0;
2918 }
2919
2920 /* ----------------------------------------------------------------------- */
2921
2922 static struct i2c_device_id adv7842_id[] = {
2923         { "adv7842", 0 },
2924         { }
2925 };
2926 MODULE_DEVICE_TABLE(i2c, adv7842_id);
2927
2928 /* ----------------------------------------------------------------------- */
2929
2930 static struct i2c_driver adv7842_driver = {
2931         .driver = {
2932                 .owner = THIS_MODULE,
2933                 .name = "adv7842",
2934         },
2935         .probe = adv7842_probe,
2936         .remove = adv7842_remove,
2937         .id_table = adv7842_id,
2938 };
2939
2940 module_i2c_driver(adv7842_driver);