1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * adv7842 - Analog Devices ADV7842 video decoder driver 4 * 5 * Copyright 2013 Cisco Systems, Inc. and/or its affiliates. All rights reserved. 6 */ 7 8 /* 9 * References (c = chapter, p = page): 10 * REF_01 - Analog devices, ADV7842, 11 * Register Settings Recommendations, Rev. 1.9, April 2011 12 * REF_02 - Analog devices, Software User Guide, UG-206, 13 * ADV7842 I2C Register Maps, Rev. 0, November 2010 14 * REF_03 - Analog devices, Hardware User Guide, UG-214, 15 * ADV7842 Fast Switching 2:1 HDMI 1.4 Receiver with 3D-Comb 16 * Decoder and Digitizer , Rev. 0, January 2011 17 */ 18 19 20 #include <linux/kernel.h> 21 #include <linux/module.h> 22 #include <linux/slab.h> 23 #include <linux/i2c.h> 24 #include <linux/delay.h> 25 #include <linux/videodev2.h> 26 #include <linux/workqueue.h> 27 #include <linux/v4l2-dv-timings.h> 28 #include <linux/hdmi.h> 29 #include <media/cec.h> 30 #include <media/v4l2-device.h> 31 #include <media/v4l2-event.h> 32 #include <media/v4l2-ctrls.h> 33 #include <media/v4l2-dv-timings.h> 34 #include <media/i2c/adv7842.h> 35 36 static int debug; 37 module_param(debug, int, 0644); 38 MODULE_PARM_DESC(debug, "debug level (0-2)"); 39 40 MODULE_DESCRIPTION("Analog Devices ADV7842 video decoder driver"); 41 MODULE_AUTHOR("Hans Verkuil <hans.verkuil@cisco.com>"); 42 MODULE_AUTHOR("Martin Bugge <marbugge@cisco.com>"); 43 MODULE_LICENSE("GPL"); 44 45 /* ADV7842 system clock frequency */ 46 #define ADV7842_fsc (28636360) 47 48 #define ADV7842_RGB_OUT (1 << 1) 49 50 #define ADV7842_OP_FORMAT_SEL_8BIT (0 << 0) 51 #define ADV7842_OP_FORMAT_SEL_10BIT (1 << 0) 52 #define ADV7842_OP_FORMAT_SEL_12BIT (2 << 0) 53 54 #define ADV7842_OP_MODE_SEL_SDR_422 (0 << 5) 55 #define ADV7842_OP_MODE_SEL_DDR_422 (1 << 5) 56 #define ADV7842_OP_MODE_SEL_SDR_444 (2 << 5) 57 #define ADV7842_OP_MODE_SEL_DDR_444 (3 << 5) 58 #define ADV7842_OP_MODE_SEL_SDR_422_2X (4 << 5) 59 #define ADV7842_OP_MODE_SEL_ADI_CM (5 << 5) 60 61 #define ADV7842_OP_CH_SEL_GBR (0 << 5) 62 #define ADV7842_OP_CH_SEL_GRB (1 << 5) 63 #define ADV7842_OP_CH_SEL_BGR (2 << 5) 64 #define ADV7842_OP_CH_SEL_RGB (3 << 5) 65 #define ADV7842_OP_CH_SEL_BRG (4 << 5) 66 #define ADV7842_OP_CH_SEL_RBG (5 << 5) 67 68 #define ADV7842_OP_SWAP_CB_CR (1 << 0) 69 70 #define ADV7842_MAX_ADDRS (3) 71 72 /* 73 ********************************************************************** 74 * 75 * Arrays with configuration parameters for the ADV7842 76 * 77 ********************************************************************** 78 */ 79 80 struct adv7842_format_info { 81 u32 code; 82 u8 op_ch_sel; 83 bool rgb_out; 84 bool swap_cb_cr; 85 u8 op_format_sel; 86 }; 87 88 struct adv7842_state { 89 struct adv7842_platform_data pdata; 90 struct v4l2_subdev sd; 91 struct media_pad pad; 92 struct v4l2_ctrl_handler hdl; 93 enum adv7842_mode mode; 94 struct v4l2_dv_timings timings; 95 enum adv7842_vid_std_select vid_std_select; 96 97 const struct adv7842_format_info *format; 98 99 v4l2_std_id norm; 100 struct { 101 u8 edid[256]; 102 u32 present; 103 } hdmi_edid; 104 struct { 105 u8 edid[256]; 106 u32 present; 107 } vga_edid; 108 struct v4l2_fract aspect_ratio; 109 u32 rgb_quantization_range; 110 bool is_cea_format; 111 struct delayed_work delayed_work_enable_hotplug; 112 bool restart_stdi_once; 113 bool hdmi_port_a; 114 115 /* i2c clients */ 116 struct i2c_client *i2c_sdp_io; 117 struct i2c_client *i2c_sdp; 118 struct i2c_client *i2c_cp; 119 struct i2c_client *i2c_vdp; 120 struct i2c_client *i2c_afe; 121 struct i2c_client *i2c_hdmi; 122 struct i2c_client *i2c_repeater; 123 struct i2c_client *i2c_edid; 124 struct i2c_client *i2c_infoframe; 125 struct i2c_client *i2c_cec; 126 struct i2c_client *i2c_avlink; 127 128 /* controls */ 129 struct v4l2_ctrl *detect_tx_5v_ctrl; 130 struct v4l2_ctrl *analog_sampling_phase_ctrl; 131 struct v4l2_ctrl *free_run_color_ctrl_manual; 132 struct v4l2_ctrl *free_run_color_ctrl; 133 struct v4l2_ctrl *rgb_quantization_range_ctrl; 134 135 struct cec_adapter *cec_adap; 136 u8 cec_addr[ADV7842_MAX_ADDRS]; 137 u8 cec_valid_addrs; 138 bool cec_enabled_adap; 139 }; 140 141 /* Unsupported timings. This device cannot support 720p30. */ 142 static const struct v4l2_dv_timings adv7842_timings_exceptions[] = { 143 V4L2_DV_BT_CEA_1280X720P30, 144 { } 145 }; 146 147 static bool adv7842_check_dv_timings(const struct v4l2_dv_timings *t, void *hdl) 148 { 149 int i; 150 151 for (i = 0; adv7842_timings_exceptions[i].bt.width; i++) 152 if (v4l2_match_dv_timings(t, adv7842_timings_exceptions + i, 0, false)) 153 return false; 154 return true; 155 } 156 157 struct adv7842_video_standards { 158 struct v4l2_dv_timings timings; 159 u8 vid_std; 160 u8 v_freq; 161 }; 162 163 /* sorted by number of lines */ 164 static const struct adv7842_video_standards adv7842_prim_mode_comp[] = { 165 /* { V4L2_DV_BT_CEA_720X480P59_94, 0x0a, 0x00 }, TODO flickering */ 166 { V4L2_DV_BT_CEA_720X576P50, 0x0b, 0x00 }, 167 { V4L2_DV_BT_CEA_1280X720P50, 0x19, 0x01 }, 168 { V4L2_DV_BT_CEA_1280X720P60, 0x19, 0x00 }, 169 { V4L2_DV_BT_CEA_1920X1080P24, 0x1e, 0x04 }, 170 { V4L2_DV_BT_CEA_1920X1080P25, 0x1e, 0x03 }, 171 { V4L2_DV_BT_CEA_1920X1080P30, 0x1e, 0x02 }, 172 { V4L2_DV_BT_CEA_1920X1080P50, 0x1e, 0x01 }, 173 { V4L2_DV_BT_CEA_1920X1080P60, 0x1e, 0x00 }, 174 /* TODO add 1920x1080P60_RB (CVT timing) */ 175 { }, 176 }; 177 178 /* sorted by number of lines */ 179 static const struct adv7842_video_standards adv7842_prim_mode_gr[] = { 180 { V4L2_DV_BT_DMT_640X480P60, 0x08, 0x00 }, 181 { V4L2_DV_BT_DMT_640X480P72, 0x09, 0x00 }, 182 { V4L2_DV_BT_DMT_640X480P75, 0x0a, 0x00 }, 183 { V4L2_DV_BT_DMT_640X480P85, 0x0b, 0x00 }, 184 { V4L2_DV_BT_DMT_800X600P56, 0x00, 0x00 }, 185 { V4L2_DV_BT_DMT_800X600P60, 0x01, 0x00 }, 186 { V4L2_DV_BT_DMT_800X600P72, 0x02, 0x00 }, 187 { V4L2_DV_BT_DMT_800X600P75, 0x03, 0x00 }, 188 { V4L2_DV_BT_DMT_800X600P85, 0x04, 0x00 }, 189 { V4L2_DV_BT_DMT_1024X768P60, 0x0c, 0x00 }, 190 { V4L2_DV_BT_DMT_1024X768P70, 0x0d, 0x00 }, 191 { V4L2_DV_BT_DMT_1024X768P75, 0x0e, 0x00 }, 192 { V4L2_DV_BT_DMT_1024X768P85, 0x0f, 0x00 }, 193 { V4L2_DV_BT_DMT_1280X1024P60, 0x05, 0x00 }, 194 { V4L2_DV_BT_DMT_1280X1024P75, 0x06, 0x00 }, 195 { V4L2_DV_BT_DMT_1360X768P60, 0x12, 0x00 }, 196 { V4L2_DV_BT_DMT_1366X768P60, 0x13, 0x00 }, 197 { V4L2_DV_BT_DMT_1400X1050P60, 0x14, 0x00 }, 198 { V4L2_DV_BT_DMT_1400X1050P75, 0x15, 0x00 }, 199 { V4L2_DV_BT_DMT_1600X1200P60, 0x16, 0x00 }, /* TODO not tested */ 200 /* TODO add 1600X1200P60_RB (not a DMT timing) */ 201 { V4L2_DV_BT_DMT_1680X1050P60, 0x18, 0x00 }, 202 { V4L2_DV_BT_DMT_1920X1200P60_RB, 0x19, 0x00 }, /* TODO not tested */ 203 { }, 204 }; 205 206 /* sorted by number of lines */ 207 static const struct adv7842_video_standards adv7842_prim_mode_hdmi_comp[] = { 208 { V4L2_DV_BT_CEA_720X480P59_94, 0x0a, 0x00 }, 209 { V4L2_DV_BT_CEA_720X576P50, 0x0b, 0x00 }, 210 { V4L2_DV_BT_CEA_1280X720P50, 0x13, 0x01 }, 211 { V4L2_DV_BT_CEA_1280X720P60, 0x13, 0x00 }, 212 { V4L2_DV_BT_CEA_1920X1080P24, 0x1e, 0x04 }, 213 { V4L2_DV_BT_CEA_1920X1080P25, 0x1e, 0x03 }, 214 { V4L2_DV_BT_CEA_1920X1080P30, 0x1e, 0x02 }, 215 { V4L2_DV_BT_CEA_1920X1080P50, 0x1e, 0x01 }, 216 { V4L2_DV_BT_CEA_1920X1080P60, 0x1e, 0x00 }, 217 { }, 218 }; 219 220 /* sorted by number of lines */ 221 static const struct adv7842_video_standards adv7842_prim_mode_hdmi_gr[] = { 222 { V4L2_DV_BT_DMT_640X480P60, 0x08, 0x00 }, 223 { V4L2_DV_BT_DMT_640X480P72, 0x09, 0x00 }, 224 { V4L2_DV_BT_DMT_640X480P75, 0x0a, 0x00 }, 225 { V4L2_DV_BT_DMT_640X480P85, 0x0b, 0x00 }, 226 { V4L2_DV_BT_DMT_800X600P56, 0x00, 0x00 }, 227 { V4L2_DV_BT_DMT_800X600P60, 0x01, 0x00 }, 228 { V4L2_DV_BT_DMT_800X600P72, 0x02, 0x00 }, 229 { V4L2_DV_BT_DMT_800X600P75, 0x03, 0x00 }, 230 { V4L2_DV_BT_DMT_800X600P85, 0x04, 0x00 }, 231 { V4L2_DV_BT_DMT_1024X768P60, 0x0c, 0x00 }, 232 { V4L2_DV_BT_DMT_1024X768P70, 0x0d, 0x00 }, 233 { V4L2_DV_BT_DMT_1024X768P75, 0x0e, 0x00 }, 234 { V4L2_DV_BT_DMT_1024X768P85, 0x0f, 0x00 }, 235 { V4L2_DV_BT_DMT_1280X1024P60, 0x05, 0x00 }, 236 { V4L2_DV_BT_DMT_1280X1024P75, 0x06, 0x00 }, 237 { }, 238 }; 239 240 static const struct v4l2_event adv7842_ev_fmt = { 241 .type = V4L2_EVENT_SOURCE_CHANGE, 242 .u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION, 243 }; 244 245 /* ----------------------------------------------------------------------- */ 246 247 static inline struct adv7842_state *to_state(struct v4l2_subdev *sd) 248 { 249 return container_of(sd, struct adv7842_state, sd); 250 } 251 252 static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl) 253 { 254 return &container_of(ctrl->handler, struct adv7842_state, hdl)->sd; 255 } 256 257 static inline unsigned hblanking(const struct v4l2_bt_timings *t) 258 { 259 return V4L2_DV_BT_BLANKING_WIDTH(t); 260 } 261 262 static inline unsigned htotal(const struct v4l2_bt_timings *t) 263 { 264 return V4L2_DV_BT_FRAME_WIDTH(t); 265 } 266 267 static inline unsigned vblanking(const struct v4l2_bt_timings *t) 268 { 269 return V4L2_DV_BT_BLANKING_HEIGHT(t); 270 } 271 272 static inline unsigned vtotal(const struct v4l2_bt_timings *t) 273 { 274 return V4L2_DV_BT_FRAME_HEIGHT(t); 275 } 276 277 278 /* ----------------------------------------------------------------------- */ 279 280 static s32 adv_smbus_read_byte_data_check(struct i2c_client *client, 281 u8 command, bool check) 282 { 283 union i2c_smbus_data data; 284 285 if (!i2c_smbus_xfer(client->adapter, client->addr, client->flags, 286 I2C_SMBUS_READ, command, 287 I2C_SMBUS_BYTE_DATA, &data)) 288 return data.byte; 289 if (check) 290 v4l_err(client, "error reading %02x, %02x\n", 291 client->addr, command); 292 return -EIO; 293 } 294 295 static s32 adv_smbus_read_byte_data(struct i2c_client *client, u8 command) 296 { 297 int i; 298 299 for (i = 0; i < 3; i++) { 300 int ret = adv_smbus_read_byte_data_check(client, command, true); 301 302 if (ret >= 0) { 303 if (i) 304 v4l_err(client, "read ok after %d retries\n", i); 305 return ret; 306 } 307 } 308 v4l_err(client, "read failed\n"); 309 return -EIO; 310 } 311 312 static s32 adv_smbus_write_byte_data(struct i2c_client *client, 313 u8 command, u8 value) 314 { 315 union i2c_smbus_data data; 316 int err; 317 int i; 318 319 data.byte = value; 320 for (i = 0; i < 3; i++) { 321 err = i2c_smbus_xfer(client->adapter, client->addr, 322 client->flags, 323 I2C_SMBUS_WRITE, command, 324 I2C_SMBUS_BYTE_DATA, &data); 325 if (!err) 326 break; 327 } 328 if (err < 0) 329 v4l_err(client, "error writing %02x, %02x, %02x\n", 330 client->addr, command, value); 331 return err; 332 } 333 334 static void adv_smbus_write_byte_no_check(struct i2c_client *client, 335 u8 command, u8 value) 336 { 337 union i2c_smbus_data data; 338 data.byte = value; 339 340 i2c_smbus_xfer(client->adapter, client->addr, 341 client->flags, 342 I2C_SMBUS_WRITE, command, 343 I2C_SMBUS_BYTE_DATA, &data); 344 } 345 346 static s32 adv_smbus_write_i2c_block_data(struct i2c_client *client, 347 u8 command, unsigned length, const u8 *values) 348 { 349 union i2c_smbus_data data; 350 351 if (length > I2C_SMBUS_BLOCK_MAX) 352 length = I2C_SMBUS_BLOCK_MAX; 353 data.block[0] = length; 354 memcpy(data.block + 1, values, length); 355 return i2c_smbus_xfer(client->adapter, client->addr, client->flags, 356 I2C_SMBUS_WRITE, command, 357 I2C_SMBUS_I2C_BLOCK_DATA, &data); 358 } 359 360 /* ----------------------------------------------------------------------- */ 361 362 static inline int io_read(struct v4l2_subdev *sd, u8 reg) 363 { 364 struct i2c_client *client = v4l2_get_subdevdata(sd); 365 366 return adv_smbus_read_byte_data(client, reg); 367 } 368 369 static inline int io_write(struct v4l2_subdev *sd, u8 reg, u8 val) 370 { 371 struct i2c_client *client = v4l2_get_subdevdata(sd); 372 373 return adv_smbus_write_byte_data(client, reg, val); 374 } 375 376 static inline int io_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val) 377 { 378 return io_write(sd, reg, (io_read(sd, reg) & mask) | val); 379 } 380 381 static inline int io_write_clr_set(struct v4l2_subdev *sd, 382 u8 reg, u8 mask, u8 val) 383 { 384 return io_write(sd, reg, (io_read(sd, reg) & ~mask) | val); 385 } 386 387 static inline int avlink_read(struct v4l2_subdev *sd, u8 reg) 388 { 389 struct adv7842_state *state = to_state(sd); 390 391 return adv_smbus_read_byte_data(state->i2c_avlink, reg); 392 } 393 394 static inline int avlink_write(struct v4l2_subdev *sd, u8 reg, u8 val) 395 { 396 struct adv7842_state *state = to_state(sd); 397 398 return adv_smbus_write_byte_data(state->i2c_avlink, reg, val); 399 } 400 401 static inline int cec_read(struct v4l2_subdev *sd, u8 reg) 402 { 403 struct adv7842_state *state = to_state(sd); 404 405 return adv_smbus_read_byte_data(state->i2c_cec, reg); 406 } 407 408 static inline int cec_write(struct v4l2_subdev *sd, u8 reg, u8 val) 409 { 410 struct adv7842_state *state = to_state(sd); 411 412 return adv_smbus_write_byte_data(state->i2c_cec, reg, val); 413 } 414 415 static inline int cec_write_clr_set(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val) 416 { 417 return cec_write(sd, reg, (cec_read(sd, reg) & ~mask) | val); 418 } 419 420 static inline int infoframe_read(struct v4l2_subdev *sd, u8 reg) 421 { 422 struct adv7842_state *state = to_state(sd); 423 424 return adv_smbus_read_byte_data(state->i2c_infoframe, reg); 425 } 426 427 static inline int infoframe_write(struct v4l2_subdev *sd, u8 reg, u8 val) 428 { 429 struct adv7842_state *state = to_state(sd); 430 431 return adv_smbus_write_byte_data(state->i2c_infoframe, reg, val); 432 } 433 434 static inline int sdp_io_read(struct v4l2_subdev *sd, u8 reg) 435 { 436 struct adv7842_state *state = to_state(sd); 437 438 return adv_smbus_read_byte_data(state->i2c_sdp_io, reg); 439 } 440 441 static inline int sdp_io_write(struct v4l2_subdev *sd, u8 reg, u8 val) 442 { 443 struct adv7842_state *state = to_state(sd); 444 445 return adv_smbus_write_byte_data(state->i2c_sdp_io, reg, val); 446 } 447 448 static inline int sdp_io_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val) 449 { 450 return sdp_io_write(sd, reg, (sdp_io_read(sd, reg) & mask) | val); 451 } 452 453 static inline int sdp_read(struct v4l2_subdev *sd, u8 reg) 454 { 455 struct adv7842_state *state = to_state(sd); 456 457 return adv_smbus_read_byte_data(state->i2c_sdp, reg); 458 } 459 460 static inline int sdp_write(struct v4l2_subdev *sd, u8 reg, u8 val) 461 { 462 struct adv7842_state *state = to_state(sd); 463 464 return adv_smbus_write_byte_data(state->i2c_sdp, reg, val); 465 } 466 467 static inline int sdp_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val) 468 { 469 return sdp_write(sd, reg, (sdp_read(sd, reg) & mask) | val); 470 } 471 472 static inline int afe_read(struct v4l2_subdev *sd, u8 reg) 473 { 474 struct adv7842_state *state = to_state(sd); 475 476 return adv_smbus_read_byte_data(state->i2c_afe, reg); 477 } 478 479 static inline int afe_write(struct v4l2_subdev *sd, u8 reg, u8 val) 480 { 481 struct adv7842_state *state = to_state(sd); 482 483 return adv_smbus_write_byte_data(state->i2c_afe, reg, val); 484 } 485 486 static inline int afe_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val) 487 { 488 return afe_write(sd, reg, (afe_read(sd, reg) & mask) | val); 489 } 490 491 static inline int rep_read(struct v4l2_subdev *sd, u8 reg) 492 { 493 struct adv7842_state *state = to_state(sd); 494 495 return adv_smbus_read_byte_data(state->i2c_repeater, reg); 496 } 497 498 static inline int rep_write(struct v4l2_subdev *sd, u8 reg, u8 val) 499 { 500 struct adv7842_state *state = to_state(sd); 501 502 return adv_smbus_write_byte_data(state->i2c_repeater, reg, val); 503 } 504 505 static inline int rep_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val) 506 { 507 return rep_write(sd, reg, (rep_read(sd, reg) & mask) | val); 508 } 509 510 static inline int edid_read(struct v4l2_subdev *sd, u8 reg) 511 { 512 struct adv7842_state *state = to_state(sd); 513 514 return adv_smbus_read_byte_data(state->i2c_edid, reg); 515 } 516 517 static inline int edid_write(struct v4l2_subdev *sd, u8 reg, u8 val) 518 { 519 struct adv7842_state *state = to_state(sd); 520 521 return adv_smbus_write_byte_data(state->i2c_edid, reg, val); 522 } 523 524 static inline int hdmi_read(struct v4l2_subdev *sd, u8 reg) 525 { 526 struct adv7842_state *state = to_state(sd); 527 528 return adv_smbus_read_byte_data(state->i2c_hdmi, reg); 529 } 530 531 static inline int hdmi_write(struct v4l2_subdev *sd, u8 reg, u8 val) 532 { 533 struct adv7842_state *state = to_state(sd); 534 535 return adv_smbus_write_byte_data(state->i2c_hdmi, reg, val); 536 } 537 538 static inline int hdmi_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val) 539 { 540 return hdmi_write(sd, reg, (hdmi_read(sd, reg) & mask) | val); 541 } 542 543 static inline int cp_read(struct v4l2_subdev *sd, u8 reg) 544 { 545 struct adv7842_state *state = to_state(sd); 546 547 return adv_smbus_read_byte_data(state->i2c_cp, reg); 548 } 549 550 static inline int cp_write(struct v4l2_subdev *sd, u8 reg, u8 val) 551 { 552 struct adv7842_state *state = to_state(sd); 553 554 return adv_smbus_write_byte_data(state->i2c_cp, reg, val); 555 } 556 557 static inline int cp_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val) 558 { 559 return cp_write(sd, reg, (cp_read(sd, reg) & mask) | val); 560 } 561 562 static inline int vdp_read(struct v4l2_subdev *sd, u8 reg) 563 { 564 struct adv7842_state *state = to_state(sd); 565 566 return adv_smbus_read_byte_data(state->i2c_vdp, reg); 567 } 568 569 static inline int vdp_write(struct v4l2_subdev *sd, u8 reg, u8 val) 570 { 571 struct adv7842_state *state = to_state(sd); 572 573 return adv_smbus_write_byte_data(state->i2c_vdp, reg, val); 574 } 575 576 static void main_reset(struct v4l2_subdev *sd) 577 { 578 struct i2c_client *client = v4l2_get_subdevdata(sd); 579 580 v4l2_dbg(1, debug, sd, "%s:\n", __func__); 581 582 adv_smbus_write_byte_no_check(client, 0xff, 0x80); 583 584 mdelay(5); 585 } 586 587 /* ----------------------------------------------------------------------------- 588 * Format helpers 589 */ 590 591 static const struct adv7842_format_info adv7842_formats[] = { 592 { MEDIA_BUS_FMT_RGB888_1X24, ADV7842_OP_CH_SEL_RGB, true, false, 593 ADV7842_OP_MODE_SEL_SDR_444 | ADV7842_OP_FORMAT_SEL_8BIT }, 594 { MEDIA_BUS_FMT_YUYV8_2X8, ADV7842_OP_CH_SEL_RGB, false, false, 595 ADV7842_OP_MODE_SEL_SDR_422 | ADV7842_OP_FORMAT_SEL_8BIT }, 596 { MEDIA_BUS_FMT_YVYU8_2X8, ADV7842_OP_CH_SEL_RGB, false, true, 597 ADV7842_OP_MODE_SEL_SDR_422 | ADV7842_OP_FORMAT_SEL_8BIT }, 598 { MEDIA_BUS_FMT_YUYV10_2X10, ADV7842_OP_CH_SEL_RGB, false, false, 599 ADV7842_OP_MODE_SEL_SDR_422 | ADV7842_OP_FORMAT_SEL_10BIT }, 600 { MEDIA_BUS_FMT_YVYU10_2X10, ADV7842_OP_CH_SEL_RGB, false, true, 601 ADV7842_OP_MODE_SEL_SDR_422 | ADV7842_OP_FORMAT_SEL_10BIT }, 602 { MEDIA_BUS_FMT_YUYV12_2X12, ADV7842_OP_CH_SEL_RGB, false, false, 603 ADV7842_OP_MODE_SEL_SDR_422 | ADV7842_OP_FORMAT_SEL_12BIT }, 604 { MEDIA_BUS_FMT_YVYU12_2X12, ADV7842_OP_CH_SEL_RGB, false, true, 605 ADV7842_OP_MODE_SEL_SDR_422 | ADV7842_OP_FORMAT_SEL_12BIT }, 606 { MEDIA_BUS_FMT_UYVY8_1X16, ADV7842_OP_CH_SEL_RBG, false, false, 607 ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_8BIT }, 608 { MEDIA_BUS_FMT_VYUY8_1X16, ADV7842_OP_CH_SEL_RBG, false, true, 609 ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_8BIT }, 610 { MEDIA_BUS_FMT_YUYV8_1X16, ADV7842_OP_CH_SEL_RGB, false, false, 611 ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_8BIT }, 612 { MEDIA_BUS_FMT_YVYU8_1X16, ADV7842_OP_CH_SEL_RGB, false, true, 613 ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_8BIT }, 614 { MEDIA_BUS_FMT_UYVY10_1X20, ADV7842_OP_CH_SEL_RBG, false, false, 615 ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_10BIT }, 616 { MEDIA_BUS_FMT_VYUY10_1X20, ADV7842_OP_CH_SEL_RBG, false, true, 617 ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_10BIT }, 618 { MEDIA_BUS_FMT_YUYV10_1X20, ADV7842_OP_CH_SEL_RGB, false, false, 619 ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_10BIT }, 620 { MEDIA_BUS_FMT_YVYU10_1X20, ADV7842_OP_CH_SEL_RGB, false, true, 621 ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_10BIT }, 622 { MEDIA_BUS_FMT_UYVY12_1X24, ADV7842_OP_CH_SEL_RBG, false, false, 623 ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_12BIT }, 624 { MEDIA_BUS_FMT_VYUY12_1X24, ADV7842_OP_CH_SEL_RBG, false, true, 625 ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_12BIT }, 626 { MEDIA_BUS_FMT_YUYV12_1X24, ADV7842_OP_CH_SEL_RGB, false, false, 627 ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_12BIT }, 628 { MEDIA_BUS_FMT_YVYU12_1X24, ADV7842_OP_CH_SEL_RGB, false, true, 629 ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_12BIT }, 630 }; 631 632 static const struct adv7842_format_info * 633 adv7842_format_info(struct adv7842_state *state, u32 code) 634 { 635 unsigned int i; 636 637 for (i = 0; i < ARRAY_SIZE(adv7842_formats); ++i) { 638 if (adv7842_formats[i].code == code) 639 return &adv7842_formats[i]; 640 } 641 642 return NULL; 643 } 644 645 /* ----------------------------------------------------------------------- */ 646 647 static inline bool is_analog_input(struct v4l2_subdev *sd) 648 { 649 struct adv7842_state *state = to_state(sd); 650 651 return ((state->mode == ADV7842_MODE_RGB) || 652 (state->mode == ADV7842_MODE_COMP)); 653 } 654 655 static inline bool is_digital_input(struct v4l2_subdev *sd) 656 { 657 struct adv7842_state *state = to_state(sd); 658 659 return state->mode == ADV7842_MODE_HDMI; 660 } 661 662 static const struct v4l2_dv_timings_cap adv7842_timings_cap_analog = { 663 .type = V4L2_DV_BT_656_1120, 664 /* keep this initialization for compatibility with GCC < 4.4.6 */ 665 .reserved = { 0 }, 666 V4L2_INIT_BT_TIMINGS(640, 1920, 350, 1200, 25000000, 170000000, 667 V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT | 668 V4L2_DV_BT_STD_GTF | V4L2_DV_BT_STD_CVT, 669 V4L2_DV_BT_CAP_PROGRESSIVE | V4L2_DV_BT_CAP_REDUCED_BLANKING | 670 V4L2_DV_BT_CAP_CUSTOM) 671 }; 672 673 static const struct v4l2_dv_timings_cap adv7842_timings_cap_digital = { 674 .type = V4L2_DV_BT_656_1120, 675 /* keep this initialization for compatibility with GCC < 4.4.6 */ 676 .reserved = { 0 }, 677 V4L2_INIT_BT_TIMINGS(640, 1920, 350, 1200, 25000000, 225000000, 678 V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT | 679 V4L2_DV_BT_STD_GTF | V4L2_DV_BT_STD_CVT, 680 V4L2_DV_BT_CAP_PROGRESSIVE | V4L2_DV_BT_CAP_REDUCED_BLANKING | 681 V4L2_DV_BT_CAP_CUSTOM) 682 }; 683 684 static inline const struct v4l2_dv_timings_cap * 685 adv7842_get_dv_timings_cap(struct v4l2_subdev *sd) 686 { 687 return is_digital_input(sd) ? &adv7842_timings_cap_digital : 688 &adv7842_timings_cap_analog; 689 } 690 691 /* ----------------------------------------------------------------------- */ 692 693 static u16 adv7842_read_cable_det(struct v4l2_subdev *sd) 694 { 695 u8 reg = io_read(sd, 0x6f); 696 u16 val = 0; 697 698 if (reg & 0x02) 699 val |= 1; /* port A */ 700 if (reg & 0x01) 701 val |= 2; /* port B */ 702 return val; 703 } 704 705 static void adv7842_delayed_work_enable_hotplug(struct work_struct *work) 706 { 707 struct delayed_work *dwork = to_delayed_work(work); 708 struct adv7842_state *state = container_of(dwork, 709 struct adv7842_state, delayed_work_enable_hotplug); 710 struct v4l2_subdev *sd = &state->sd; 711 int present = state->hdmi_edid.present; 712 u8 mask = 0; 713 714 v4l2_dbg(2, debug, sd, "%s: enable hotplug on ports: 0x%x\n", 715 __func__, present); 716 717 if (present & (0x04 << ADV7842_EDID_PORT_A)) 718 mask |= 0x20; 719 if (present & (0x04 << ADV7842_EDID_PORT_B)) 720 mask |= 0x10; 721 io_write_and_or(sd, 0x20, 0xcf, mask); 722 } 723 724 static int edid_write_vga_segment(struct v4l2_subdev *sd) 725 { 726 struct i2c_client *client = v4l2_get_subdevdata(sd); 727 struct adv7842_state *state = to_state(sd); 728 const u8 *val = state->vga_edid.edid; 729 int err = 0; 730 int i; 731 732 v4l2_dbg(2, debug, sd, "%s: write EDID on VGA port\n", __func__); 733 734 /* HPA disable on port A and B */ 735 io_write_and_or(sd, 0x20, 0xcf, 0x00); 736 737 /* Disable I2C access to internal EDID ram from VGA DDC port */ 738 rep_write_and_or(sd, 0x7f, 0x7f, 0x00); 739 740 /* edid segment pointer '1' for VGA port */ 741 rep_write_and_or(sd, 0x77, 0xef, 0x10); 742 743 for (i = 0; !err && i < 256; i += I2C_SMBUS_BLOCK_MAX) 744 err = adv_smbus_write_i2c_block_data(state->i2c_edid, i, 745 I2C_SMBUS_BLOCK_MAX, val + i); 746 if (err) 747 return err; 748 749 /* Calculates the checksums and enables I2C access 750 * to internal EDID ram from VGA DDC port. 751 */ 752 rep_write_and_or(sd, 0x7f, 0x7f, 0x80); 753 754 for (i = 0; i < 1000; i++) { 755 if (rep_read(sd, 0x79) & 0x20) 756 break; 757 mdelay(1); 758 } 759 if (i == 1000) { 760 v4l_err(client, "error enabling edid on VGA port\n"); 761 return -EIO; 762 } 763 764 /* enable hotplug after 200 ms */ 765 schedule_delayed_work(&state->delayed_work_enable_hotplug, HZ / 5); 766 767 return 0; 768 } 769 770 static int edid_write_hdmi_segment(struct v4l2_subdev *sd, u8 port) 771 { 772 struct i2c_client *client = v4l2_get_subdevdata(sd); 773 struct adv7842_state *state = to_state(sd); 774 const u8 *edid = state->hdmi_edid.edid; 775 int spa_loc; 776 u16 pa; 777 int err = 0; 778 int i; 779 780 v4l2_dbg(2, debug, sd, "%s: write EDID on port %c\n", 781 __func__, (port == ADV7842_EDID_PORT_A) ? 'A' : 'B'); 782 783 /* HPA disable on port A and B */ 784 io_write_and_or(sd, 0x20, 0xcf, 0x00); 785 786 /* Disable I2C access to internal EDID ram from HDMI DDC ports */ 787 rep_write_and_or(sd, 0x77, 0xf3, 0x00); 788 789 if (!state->hdmi_edid.present) { 790 cec_phys_addr_invalidate(state->cec_adap); 791 return 0; 792 } 793 794 pa = v4l2_get_edid_phys_addr(edid, 256, &spa_loc); 795 err = v4l2_phys_addr_validate(pa, &pa, NULL); 796 if (err) 797 return err; 798 799 /* 800 * Return an error if no location of the source physical address 801 * was found. 802 */ 803 if (spa_loc == 0) 804 return -EINVAL; 805 806 /* edid segment pointer '0' for HDMI ports */ 807 rep_write_and_or(sd, 0x77, 0xef, 0x00); 808 809 for (i = 0; !err && i < 256; i += I2C_SMBUS_BLOCK_MAX) 810 err = adv_smbus_write_i2c_block_data(state->i2c_edid, i, 811 I2C_SMBUS_BLOCK_MAX, edid + i); 812 if (err) 813 return err; 814 815 if (port == ADV7842_EDID_PORT_A) { 816 rep_write(sd, 0x72, edid[spa_loc]); 817 rep_write(sd, 0x73, edid[spa_loc + 1]); 818 } else { 819 rep_write(sd, 0x74, edid[spa_loc]); 820 rep_write(sd, 0x75, edid[spa_loc + 1]); 821 } 822 rep_write(sd, 0x76, spa_loc & 0xff); 823 rep_write_and_or(sd, 0x77, 0xbf, (spa_loc >> 2) & 0x40); 824 825 /* Calculates the checksums and enables I2C access to internal 826 * EDID ram from HDMI DDC ports 827 */ 828 rep_write_and_or(sd, 0x77, 0xf3, state->hdmi_edid.present); 829 830 for (i = 0; i < 1000; i++) { 831 if (rep_read(sd, 0x7d) & state->hdmi_edid.present) 832 break; 833 mdelay(1); 834 } 835 if (i == 1000) { 836 v4l_err(client, "error enabling edid on port %c\n", 837 (port == ADV7842_EDID_PORT_A) ? 'A' : 'B'); 838 return -EIO; 839 } 840 cec_s_phys_addr(state->cec_adap, pa, false); 841 842 /* enable hotplug after 200 ms */ 843 schedule_delayed_work(&state->delayed_work_enable_hotplug, HZ / 5); 844 845 return 0; 846 } 847 848 /* ----------------------------------------------------------------------- */ 849 850 #ifdef CONFIG_VIDEO_ADV_DEBUG 851 static void adv7842_inv_register(struct v4l2_subdev *sd) 852 { 853 v4l2_info(sd, "0x000-0x0ff: IO Map\n"); 854 v4l2_info(sd, "0x100-0x1ff: AVLink Map\n"); 855 v4l2_info(sd, "0x200-0x2ff: CEC Map\n"); 856 v4l2_info(sd, "0x300-0x3ff: InfoFrame Map\n"); 857 v4l2_info(sd, "0x400-0x4ff: SDP_IO Map\n"); 858 v4l2_info(sd, "0x500-0x5ff: SDP Map\n"); 859 v4l2_info(sd, "0x600-0x6ff: AFE Map\n"); 860 v4l2_info(sd, "0x700-0x7ff: Repeater Map\n"); 861 v4l2_info(sd, "0x800-0x8ff: EDID Map\n"); 862 v4l2_info(sd, "0x900-0x9ff: HDMI Map\n"); 863 v4l2_info(sd, "0xa00-0xaff: CP Map\n"); 864 v4l2_info(sd, "0xb00-0xbff: VDP Map\n"); 865 } 866 867 static int adv7842_g_register(struct v4l2_subdev *sd, 868 struct v4l2_dbg_register *reg) 869 { 870 reg->size = 1; 871 switch (reg->reg >> 8) { 872 case 0: 873 reg->val = io_read(sd, reg->reg & 0xff); 874 break; 875 case 1: 876 reg->val = avlink_read(sd, reg->reg & 0xff); 877 break; 878 case 2: 879 reg->val = cec_read(sd, reg->reg & 0xff); 880 break; 881 case 3: 882 reg->val = infoframe_read(sd, reg->reg & 0xff); 883 break; 884 case 4: 885 reg->val = sdp_io_read(sd, reg->reg & 0xff); 886 break; 887 case 5: 888 reg->val = sdp_read(sd, reg->reg & 0xff); 889 break; 890 case 6: 891 reg->val = afe_read(sd, reg->reg & 0xff); 892 break; 893 case 7: 894 reg->val = rep_read(sd, reg->reg & 0xff); 895 break; 896 case 8: 897 reg->val = edid_read(sd, reg->reg & 0xff); 898 break; 899 case 9: 900 reg->val = hdmi_read(sd, reg->reg & 0xff); 901 break; 902 case 0xa: 903 reg->val = cp_read(sd, reg->reg & 0xff); 904 break; 905 case 0xb: 906 reg->val = vdp_read(sd, reg->reg & 0xff); 907 break; 908 default: 909 v4l2_info(sd, "Register %03llx not supported\n", reg->reg); 910 adv7842_inv_register(sd); 911 break; 912 } 913 return 0; 914 } 915 916 static int adv7842_s_register(struct v4l2_subdev *sd, 917 const struct v4l2_dbg_register *reg) 918 { 919 u8 val = reg->val & 0xff; 920 921 switch (reg->reg >> 8) { 922 case 0: 923 io_write(sd, reg->reg & 0xff, val); 924 break; 925 case 1: 926 avlink_write(sd, reg->reg & 0xff, val); 927 break; 928 case 2: 929 cec_write(sd, reg->reg & 0xff, val); 930 break; 931 case 3: 932 infoframe_write(sd, reg->reg & 0xff, val); 933 break; 934 case 4: 935 sdp_io_write(sd, reg->reg & 0xff, val); 936 break; 937 case 5: 938 sdp_write(sd, reg->reg & 0xff, val); 939 break; 940 case 6: 941 afe_write(sd, reg->reg & 0xff, val); 942 break; 943 case 7: 944 rep_write(sd, reg->reg & 0xff, val); 945 break; 946 case 8: 947 edid_write(sd, reg->reg & 0xff, val); 948 break; 949 case 9: 950 hdmi_write(sd, reg->reg & 0xff, val); 951 break; 952 case 0xa: 953 cp_write(sd, reg->reg & 0xff, val); 954 break; 955 case 0xb: 956 vdp_write(sd, reg->reg & 0xff, val); 957 break; 958 default: 959 v4l2_info(sd, "Register %03llx not supported\n", reg->reg); 960 adv7842_inv_register(sd); 961 break; 962 } 963 return 0; 964 } 965 #endif 966 967 static int adv7842_s_detect_tx_5v_ctrl(struct v4l2_subdev *sd) 968 { 969 struct adv7842_state *state = to_state(sd); 970 u16 cable_det = adv7842_read_cable_det(sd); 971 972 v4l2_dbg(1, debug, sd, "%s: 0x%x\n", __func__, cable_det); 973 974 return v4l2_ctrl_s_ctrl(state->detect_tx_5v_ctrl, cable_det); 975 } 976 977 static int find_and_set_predefined_video_timings(struct v4l2_subdev *sd, 978 u8 prim_mode, 979 const struct adv7842_video_standards *predef_vid_timings, 980 const struct v4l2_dv_timings *timings) 981 { 982 int i; 983 984 for (i = 0; predef_vid_timings[i].timings.bt.width; i++) { 985 if (!v4l2_match_dv_timings(timings, &predef_vid_timings[i].timings, 986 is_digital_input(sd) ? 250000 : 1000000, false)) 987 continue; 988 /* video std */ 989 io_write(sd, 0x00, predef_vid_timings[i].vid_std); 990 /* v_freq and prim mode */ 991 io_write(sd, 0x01, (predef_vid_timings[i].v_freq << 4) + prim_mode); 992 return 0; 993 } 994 995 return -1; 996 } 997 998 static int configure_predefined_video_timings(struct v4l2_subdev *sd, 999 struct v4l2_dv_timings *timings) 1000 { 1001 struct adv7842_state *state = to_state(sd); 1002 int err; 1003 1004 v4l2_dbg(1, debug, sd, "%s\n", __func__); 1005 1006 /* reset to default values */ 1007 io_write(sd, 0x16, 0x43); 1008 io_write(sd, 0x17, 0x5a); 1009 /* disable embedded syncs for auto graphics mode */ 1010 cp_write_and_or(sd, 0x81, 0xef, 0x00); 1011 cp_write(sd, 0x26, 0x00); 1012 cp_write(sd, 0x27, 0x00); 1013 cp_write(sd, 0x28, 0x00); 1014 cp_write(sd, 0x29, 0x00); 1015 cp_write(sd, 0x8f, 0x40); 1016 cp_write(sd, 0x90, 0x00); 1017 cp_write(sd, 0xa5, 0x00); 1018 cp_write(sd, 0xa6, 0x00); 1019 cp_write(sd, 0xa7, 0x00); 1020 cp_write(sd, 0xab, 0x00); 1021 cp_write(sd, 0xac, 0x00); 1022 1023 switch (state->mode) { 1024 case ADV7842_MODE_COMP: 1025 case ADV7842_MODE_RGB: 1026 err = find_and_set_predefined_video_timings(sd, 1027 0x01, adv7842_prim_mode_comp, timings); 1028 if (err) 1029 err = find_and_set_predefined_video_timings(sd, 1030 0x02, adv7842_prim_mode_gr, timings); 1031 break; 1032 case ADV7842_MODE_HDMI: 1033 err = find_and_set_predefined_video_timings(sd, 1034 0x05, adv7842_prim_mode_hdmi_comp, timings); 1035 if (err) 1036 err = find_and_set_predefined_video_timings(sd, 1037 0x06, adv7842_prim_mode_hdmi_gr, timings); 1038 break; 1039 default: 1040 v4l2_dbg(2, debug, sd, "%s: Unknown mode %d\n", 1041 __func__, state->mode); 1042 err = -1; 1043 break; 1044 } 1045 1046 1047 return err; 1048 } 1049 1050 static void configure_custom_video_timings(struct v4l2_subdev *sd, 1051 const struct v4l2_bt_timings *bt) 1052 { 1053 struct adv7842_state *state = to_state(sd); 1054 struct i2c_client *client = v4l2_get_subdevdata(sd); 1055 u32 width = htotal(bt); 1056 u32 height = vtotal(bt); 1057 u16 cp_start_sav = bt->hsync + bt->hbackporch - 4; 1058 u16 cp_start_eav = width - bt->hfrontporch; 1059 u16 cp_start_vbi = height - bt->vfrontporch + 1; 1060 u16 cp_end_vbi = bt->vsync + bt->vbackporch + 1; 1061 u16 ch1_fr_ll = (((u32)bt->pixelclock / 100) > 0) ? 1062 ((width * (ADV7842_fsc / 100)) / ((u32)bt->pixelclock / 100)) : 0; 1063 const u8 pll[2] = { 1064 0xc0 | ((width >> 8) & 0x1f), 1065 width & 0xff 1066 }; 1067 1068 v4l2_dbg(2, debug, sd, "%s\n", __func__); 1069 1070 switch (state->mode) { 1071 case ADV7842_MODE_COMP: 1072 case ADV7842_MODE_RGB: 1073 /* auto graphics */ 1074 io_write(sd, 0x00, 0x07); /* video std */ 1075 io_write(sd, 0x01, 0x02); /* prim mode */ 1076 /* enable embedded syncs for auto graphics mode */ 1077 cp_write_and_or(sd, 0x81, 0xef, 0x10); 1078 1079 /* Should only be set in auto-graphics mode [REF_02, p. 91-92] */ 1080 /* setup PLL_DIV_MAN_EN and PLL_DIV_RATIO */ 1081 /* IO-map reg. 0x16 and 0x17 should be written in sequence */ 1082 if (adv_smbus_write_i2c_block_data(client, 0x16, 2, pll)) { 1083 v4l2_err(sd, "writing to reg 0x16 and 0x17 failed\n"); 1084 break; 1085 } 1086 1087 /* active video - horizontal timing */ 1088 cp_write(sd, 0x26, (cp_start_sav >> 8) & 0xf); 1089 cp_write(sd, 0x27, (cp_start_sav & 0xff)); 1090 cp_write(sd, 0x28, (cp_start_eav >> 8) & 0xf); 1091 cp_write(sd, 0x29, (cp_start_eav & 0xff)); 1092 1093 /* active video - vertical timing */ 1094 cp_write(sd, 0xa5, (cp_start_vbi >> 4) & 0xff); 1095 cp_write(sd, 0xa6, ((cp_start_vbi & 0xf) << 4) | 1096 ((cp_end_vbi >> 8) & 0xf)); 1097 cp_write(sd, 0xa7, cp_end_vbi & 0xff); 1098 break; 1099 case ADV7842_MODE_HDMI: 1100 /* set default prim_mode/vid_std for HDMI 1101 according to [REF_03, c. 4.2] */ 1102 io_write(sd, 0x00, 0x02); /* video std */ 1103 io_write(sd, 0x01, 0x06); /* prim mode */ 1104 break; 1105 default: 1106 v4l2_dbg(2, debug, sd, "%s: Unknown mode %d\n", 1107 __func__, state->mode); 1108 break; 1109 } 1110 1111 cp_write(sd, 0x8f, (ch1_fr_ll >> 8) & 0x7); 1112 cp_write(sd, 0x90, ch1_fr_ll & 0xff); 1113 cp_write(sd, 0xab, (height >> 4) & 0xff); 1114 cp_write(sd, 0xac, (height & 0x0f) << 4); 1115 } 1116 1117 static void adv7842_set_offset(struct v4l2_subdev *sd, bool auto_offset, u16 offset_a, u16 offset_b, u16 offset_c) 1118 { 1119 struct adv7842_state *state = to_state(sd); 1120 u8 offset_buf[4]; 1121 1122 if (auto_offset) { 1123 offset_a = 0x3ff; 1124 offset_b = 0x3ff; 1125 offset_c = 0x3ff; 1126 } 1127 1128 v4l2_dbg(2, debug, sd, "%s: %s offset: a = 0x%x, b = 0x%x, c = 0x%x\n", 1129 __func__, auto_offset ? "Auto" : "Manual", 1130 offset_a, offset_b, offset_c); 1131 1132 offset_buf[0]= (cp_read(sd, 0x77) & 0xc0) | ((offset_a & 0x3f0) >> 4); 1133 offset_buf[1] = ((offset_a & 0x00f) << 4) | ((offset_b & 0x3c0) >> 6); 1134 offset_buf[2] = ((offset_b & 0x03f) << 2) | ((offset_c & 0x300) >> 8); 1135 offset_buf[3] = offset_c & 0x0ff; 1136 1137 /* Registers must be written in this order with no i2c access in between */ 1138 if (adv_smbus_write_i2c_block_data(state->i2c_cp, 0x77, 4, offset_buf)) 1139 v4l2_err(sd, "%s: i2c error writing to CP reg 0x77, 0x78, 0x79, 0x7a\n", __func__); 1140 } 1141 1142 static void adv7842_set_gain(struct v4l2_subdev *sd, bool auto_gain, u16 gain_a, u16 gain_b, u16 gain_c) 1143 { 1144 struct adv7842_state *state = to_state(sd); 1145 u8 gain_buf[4]; 1146 u8 gain_man = 1; 1147 u8 agc_mode_man = 1; 1148 1149 if (auto_gain) { 1150 gain_man = 0; 1151 agc_mode_man = 0; 1152 gain_a = 0x100; 1153 gain_b = 0x100; 1154 gain_c = 0x100; 1155 } 1156 1157 v4l2_dbg(2, debug, sd, "%s: %s gain: a = 0x%x, b = 0x%x, c = 0x%x\n", 1158 __func__, auto_gain ? "Auto" : "Manual", 1159 gain_a, gain_b, gain_c); 1160 1161 gain_buf[0] = ((gain_man << 7) | (agc_mode_man << 6) | ((gain_a & 0x3f0) >> 4)); 1162 gain_buf[1] = (((gain_a & 0x00f) << 4) | ((gain_b & 0x3c0) >> 6)); 1163 gain_buf[2] = (((gain_b & 0x03f) << 2) | ((gain_c & 0x300) >> 8)); 1164 gain_buf[3] = ((gain_c & 0x0ff)); 1165 1166 /* Registers must be written in this order with no i2c access in between */ 1167 if (adv_smbus_write_i2c_block_data(state->i2c_cp, 0x73, 4, gain_buf)) 1168 v4l2_err(sd, "%s: i2c error writing to CP reg 0x73, 0x74, 0x75, 0x76\n", __func__); 1169 } 1170 1171 static void set_rgb_quantization_range(struct v4l2_subdev *sd) 1172 { 1173 struct adv7842_state *state = to_state(sd); 1174 bool rgb_output = io_read(sd, 0x02) & 0x02; 1175 bool hdmi_signal = hdmi_read(sd, 0x05) & 0x80; 1176 u8 y = HDMI_COLORSPACE_RGB; 1177 1178 if (hdmi_signal && (io_read(sd, 0x60) & 1)) 1179 y = infoframe_read(sd, 0x01) >> 5; 1180 1181 v4l2_dbg(2, debug, sd, "%s: RGB quantization range: %d, RGB out: %d, HDMI: %d\n", 1182 __func__, state->rgb_quantization_range, 1183 rgb_output, hdmi_signal); 1184 1185 adv7842_set_gain(sd, true, 0x0, 0x0, 0x0); 1186 adv7842_set_offset(sd, true, 0x0, 0x0, 0x0); 1187 io_write_clr_set(sd, 0x02, 0x04, rgb_output ? 0 : 4); 1188 1189 switch (state->rgb_quantization_range) { 1190 case V4L2_DV_RGB_RANGE_AUTO: 1191 if (state->mode == ADV7842_MODE_RGB) { 1192 /* Receiving analog RGB signal 1193 * Set RGB full range (0-255) */ 1194 io_write_and_or(sd, 0x02, 0x0f, 0x10); 1195 break; 1196 } 1197 1198 if (state->mode == ADV7842_MODE_COMP) { 1199 /* Receiving analog YPbPr signal 1200 * Set automode */ 1201 io_write_and_or(sd, 0x02, 0x0f, 0xf0); 1202 break; 1203 } 1204 1205 if (hdmi_signal) { 1206 /* Receiving HDMI signal 1207 * Set automode */ 1208 io_write_and_or(sd, 0x02, 0x0f, 0xf0); 1209 break; 1210 } 1211 1212 /* Receiving DVI-D signal 1213 * ADV7842 selects RGB limited range regardless of 1214 * input format (CE/IT) in automatic mode */ 1215 if (state->timings.bt.flags & V4L2_DV_FL_IS_CE_VIDEO) { 1216 /* RGB limited range (16-235) */ 1217 io_write_and_or(sd, 0x02, 0x0f, 0x00); 1218 } else { 1219 /* RGB full range (0-255) */ 1220 io_write_and_or(sd, 0x02, 0x0f, 0x10); 1221 1222 if (is_digital_input(sd) && rgb_output) { 1223 adv7842_set_offset(sd, false, 0x40, 0x40, 0x40); 1224 } else { 1225 adv7842_set_gain(sd, false, 0xe0, 0xe0, 0xe0); 1226 adv7842_set_offset(sd, false, 0x70, 0x70, 0x70); 1227 } 1228 } 1229 break; 1230 case V4L2_DV_RGB_RANGE_LIMITED: 1231 if (state->mode == ADV7842_MODE_COMP) { 1232 /* YCrCb limited range (16-235) */ 1233 io_write_and_or(sd, 0x02, 0x0f, 0x20); 1234 break; 1235 } 1236 1237 if (y != HDMI_COLORSPACE_RGB) 1238 break; 1239 1240 /* RGB limited range (16-235) */ 1241 io_write_and_or(sd, 0x02, 0x0f, 0x00); 1242 1243 break; 1244 case V4L2_DV_RGB_RANGE_FULL: 1245 if (state->mode == ADV7842_MODE_COMP) { 1246 /* YCrCb full range (0-255) */ 1247 io_write_and_or(sd, 0x02, 0x0f, 0x60); 1248 break; 1249 } 1250 1251 if (y != HDMI_COLORSPACE_RGB) 1252 break; 1253 1254 /* RGB full range (0-255) */ 1255 io_write_and_or(sd, 0x02, 0x0f, 0x10); 1256 1257 if (is_analog_input(sd) || hdmi_signal) 1258 break; 1259 1260 /* Adjust gain/offset for DVI-D signals only */ 1261 if (rgb_output) { 1262 adv7842_set_offset(sd, false, 0x40, 0x40, 0x40); 1263 } else { 1264 adv7842_set_gain(sd, false, 0xe0, 0xe0, 0xe0); 1265 adv7842_set_offset(sd, false, 0x70, 0x70, 0x70); 1266 } 1267 break; 1268 } 1269 } 1270 1271 static int adv7842_s_ctrl(struct v4l2_ctrl *ctrl) 1272 { 1273 struct v4l2_subdev *sd = to_sd(ctrl); 1274 struct adv7842_state *state = to_state(sd); 1275 1276 /* TODO SDP ctrls 1277 contrast/brightness/hue/free run is acting a bit strange, 1278 not sure if sdp csc is correct. 1279 */ 1280 switch (ctrl->id) { 1281 /* standard ctrls */ 1282 case V4L2_CID_BRIGHTNESS: 1283 cp_write(sd, 0x3c, ctrl->val); 1284 sdp_write(sd, 0x14, ctrl->val); 1285 /* ignore lsb sdp 0x17[3:2] */ 1286 return 0; 1287 case V4L2_CID_CONTRAST: 1288 cp_write(sd, 0x3a, ctrl->val); 1289 sdp_write(sd, 0x13, ctrl->val); 1290 /* ignore lsb sdp 0x17[1:0] */ 1291 return 0; 1292 case V4L2_CID_SATURATION: 1293 cp_write(sd, 0x3b, ctrl->val); 1294 sdp_write(sd, 0x15, ctrl->val); 1295 /* ignore lsb sdp 0x17[5:4] */ 1296 return 0; 1297 case V4L2_CID_HUE: 1298 cp_write(sd, 0x3d, ctrl->val); 1299 sdp_write(sd, 0x16, ctrl->val); 1300 /* ignore lsb sdp 0x17[7:6] */ 1301 return 0; 1302 /* custom ctrls */ 1303 case V4L2_CID_ADV_RX_ANALOG_SAMPLING_PHASE: 1304 afe_write(sd, 0xc8, ctrl->val); 1305 return 0; 1306 case V4L2_CID_ADV_RX_FREE_RUN_COLOR_MANUAL: 1307 cp_write_and_or(sd, 0xbf, ~0x04, (ctrl->val << 2)); 1308 sdp_write_and_or(sd, 0xdd, ~0x04, (ctrl->val << 2)); 1309 return 0; 1310 case V4L2_CID_ADV_RX_FREE_RUN_COLOR: { 1311 u8 R = (ctrl->val & 0xff0000) >> 16; 1312 u8 G = (ctrl->val & 0x00ff00) >> 8; 1313 u8 B = (ctrl->val & 0x0000ff); 1314 /* RGB -> YUV, numerical approximation */ 1315 int Y = 66 * R + 129 * G + 25 * B; 1316 int U = -38 * R - 74 * G + 112 * B; 1317 int V = 112 * R - 94 * G - 18 * B; 1318 1319 /* Scale down to 8 bits with rounding */ 1320 Y = (Y + 128) >> 8; 1321 U = (U + 128) >> 8; 1322 V = (V + 128) >> 8; 1323 /* make U,V positive */ 1324 Y += 16; 1325 U += 128; 1326 V += 128; 1327 1328 v4l2_dbg(1, debug, sd, "R %x, G %x, B %x\n", R, G, B); 1329 v4l2_dbg(1, debug, sd, "Y %x, U %x, V %x\n", Y, U, V); 1330 1331 /* CP */ 1332 cp_write(sd, 0xc1, R); 1333 cp_write(sd, 0xc0, G); 1334 cp_write(sd, 0xc2, B); 1335 /* SDP */ 1336 sdp_write(sd, 0xde, Y); 1337 sdp_write(sd, 0xdf, (V & 0xf0) | ((U >> 4) & 0x0f)); 1338 return 0; 1339 } 1340 case V4L2_CID_DV_RX_RGB_RANGE: 1341 state->rgb_quantization_range = ctrl->val; 1342 set_rgb_quantization_range(sd); 1343 return 0; 1344 } 1345 return -EINVAL; 1346 } 1347 1348 static int adv7842_g_volatile_ctrl(struct v4l2_ctrl *ctrl) 1349 { 1350 struct v4l2_subdev *sd = to_sd(ctrl); 1351 1352 if (ctrl->id == V4L2_CID_DV_RX_IT_CONTENT_TYPE) { 1353 ctrl->val = V4L2_DV_IT_CONTENT_TYPE_NO_ITC; 1354 if ((io_read(sd, 0x60) & 1) && (infoframe_read(sd, 0x03) & 0x80)) 1355 ctrl->val = (infoframe_read(sd, 0x05) >> 4) & 3; 1356 return 0; 1357 } 1358 return -EINVAL; 1359 } 1360 1361 static inline bool no_power(struct v4l2_subdev *sd) 1362 { 1363 return io_read(sd, 0x0c) & 0x24; 1364 } 1365 1366 static inline bool no_cp_signal(struct v4l2_subdev *sd) 1367 { 1368 return ((cp_read(sd, 0xb5) & 0xd0) != 0xd0) || !(cp_read(sd, 0xb1) & 0x80); 1369 } 1370 1371 static inline bool is_hdmi(struct v4l2_subdev *sd) 1372 { 1373 return hdmi_read(sd, 0x05) & 0x80; 1374 } 1375 1376 static int adv7842_g_input_status(struct v4l2_subdev *sd, u32 *status) 1377 { 1378 struct adv7842_state *state = to_state(sd); 1379 1380 *status = 0; 1381 1382 if (io_read(sd, 0x0c) & 0x24) 1383 *status |= V4L2_IN_ST_NO_POWER; 1384 1385 if (state->mode == ADV7842_MODE_SDP) { 1386 /* status from SDP block */ 1387 if (!(sdp_read(sd, 0x5A) & 0x01)) 1388 *status |= V4L2_IN_ST_NO_SIGNAL; 1389 1390 v4l2_dbg(1, debug, sd, "%s: SDP status = 0x%x\n", 1391 __func__, *status); 1392 return 0; 1393 } 1394 /* status from CP block */ 1395 if ((cp_read(sd, 0xb5) & 0xd0) != 0xd0 || 1396 !(cp_read(sd, 0xb1) & 0x80)) 1397 /* TODO channel 2 */ 1398 *status |= V4L2_IN_ST_NO_SIGNAL; 1399 1400 if (is_digital_input(sd) && ((io_read(sd, 0x74) & 0x03) != 0x03)) 1401 *status |= V4L2_IN_ST_NO_SIGNAL; 1402 1403 v4l2_dbg(1, debug, sd, "%s: CP status = 0x%x\n", 1404 __func__, *status); 1405 1406 return 0; 1407 } 1408 1409 struct stdi_readback { 1410 u16 bl, lcf, lcvs; 1411 u8 hs_pol, vs_pol; 1412 bool interlaced; 1413 }; 1414 1415 static int stdi2dv_timings(struct v4l2_subdev *sd, 1416 struct stdi_readback *stdi, 1417 struct v4l2_dv_timings *timings) 1418 { 1419 struct adv7842_state *state = to_state(sd); 1420 u32 hfreq = (ADV7842_fsc * 8) / stdi->bl; 1421 u32 pix_clk; 1422 int i; 1423 1424 for (i = 0; v4l2_dv_timings_presets[i].bt.width; i++) { 1425 const struct v4l2_bt_timings *bt = &v4l2_dv_timings_presets[i].bt; 1426 1427 if (!v4l2_valid_dv_timings(&v4l2_dv_timings_presets[i], 1428 adv7842_get_dv_timings_cap(sd), 1429 adv7842_check_dv_timings, NULL)) 1430 continue; 1431 if (vtotal(bt) != stdi->lcf + 1) 1432 continue; 1433 if (bt->vsync != stdi->lcvs) 1434 continue; 1435 1436 pix_clk = hfreq * htotal(bt); 1437 1438 if ((pix_clk < bt->pixelclock + 1000000) && 1439 (pix_clk > bt->pixelclock - 1000000)) { 1440 *timings = v4l2_dv_timings_presets[i]; 1441 return 0; 1442 } 1443 } 1444 1445 if (v4l2_detect_cvt(stdi->lcf + 1, hfreq, stdi->lcvs, 0, 1446 (stdi->hs_pol == '+' ? V4L2_DV_HSYNC_POS_POL : 0) | 1447 (stdi->vs_pol == '+' ? V4L2_DV_VSYNC_POS_POL : 0), 1448 false, timings)) 1449 return 0; 1450 if (v4l2_detect_gtf(stdi->lcf + 1, hfreq, stdi->lcvs, 1451 (stdi->hs_pol == '+' ? V4L2_DV_HSYNC_POS_POL : 0) | 1452 (stdi->vs_pol == '+' ? V4L2_DV_VSYNC_POS_POL : 0), 1453 false, state->aspect_ratio, timings)) 1454 return 0; 1455 1456 v4l2_dbg(2, debug, sd, 1457 "%s: No format candidate found for lcvs = %d, lcf=%d, bl = %d, %chsync, %cvsync\n", 1458 __func__, stdi->lcvs, stdi->lcf, stdi->bl, 1459 stdi->hs_pol, stdi->vs_pol); 1460 return -1; 1461 } 1462 1463 static int read_stdi(struct v4l2_subdev *sd, struct stdi_readback *stdi) 1464 { 1465 u32 status; 1466 1467 adv7842_g_input_status(sd, &status); 1468 if (status & V4L2_IN_ST_NO_SIGNAL) { 1469 v4l2_dbg(2, debug, sd, "%s: no signal\n", __func__); 1470 return -ENOLINK; 1471 } 1472 1473 stdi->bl = ((cp_read(sd, 0xb1) & 0x3f) << 8) | cp_read(sd, 0xb2); 1474 stdi->lcf = ((cp_read(sd, 0xb3) & 0x7) << 8) | cp_read(sd, 0xb4); 1475 stdi->lcvs = cp_read(sd, 0xb3) >> 3; 1476 1477 if ((cp_read(sd, 0xb5) & 0x80) && ((cp_read(sd, 0xb5) & 0x03) == 0x01)) { 1478 stdi->hs_pol = ((cp_read(sd, 0xb5) & 0x10) ? 1479 ((cp_read(sd, 0xb5) & 0x08) ? '+' : '-') : 'x'); 1480 stdi->vs_pol = ((cp_read(sd, 0xb5) & 0x40) ? 1481 ((cp_read(sd, 0xb5) & 0x20) ? '+' : '-') : 'x'); 1482 } else { 1483 stdi->hs_pol = 'x'; 1484 stdi->vs_pol = 'x'; 1485 } 1486 stdi->interlaced = (cp_read(sd, 0xb1) & 0x40) ? true : false; 1487 1488 if (stdi->lcf < 239 || stdi->bl < 8 || stdi->bl == 0x3fff) { 1489 v4l2_dbg(2, debug, sd, "%s: invalid signal\n", __func__); 1490 return -ENOLINK; 1491 } 1492 1493 v4l2_dbg(2, debug, sd, 1494 "%s: lcf (frame height - 1) = %d, bl = %d, lcvs (vsync) = %d, %chsync, %cvsync, %s\n", 1495 __func__, stdi->lcf, stdi->bl, stdi->lcvs, 1496 stdi->hs_pol, stdi->vs_pol, 1497 stdi->interlaced ? "interlaced" : "progressive"); 1498 1499 return 0; 1500 } 1501 1502 static int adv7842_enum_dv_timings(struct v4l2_subdev *sd, 1503 struct v4l2_enum_dv_timings *timings) 1504 { 1505 if (timings->pad != 0) 1506 return -EINVAL; 1507 1508 return v4l2_enum_dv_timings_cap(timings, 1509 adv7842_get_dv_timings_cap(sd), adv7842_check_dv_timings, NULL); 1510 } 1511 1512 static int adv7842_dv_timings_cap(struct v4l2_subdev *sd, 1513 struct v4l2_dv_timings_cap *cap) 1514 { 1515 if (cap->pad != 0) 1516 return -EINVAL; 1517 1518 *cap = *adv7842_get_dv_timings_cap(sd); 1519 return 0; 1520 } 1521 1522 /* Fill the optional fields .standards and .flags in struct v4l2_dv_timings 1523 if the format is listed in adv7842_timings[] */ 1524 static void adv7842_fill_optional_dv_timings_fields(struct v4l2_subdev *sd, 1525 struct v4l2_dv_timings *timings) 1526 { 1527 v4l2_find_dv_timings_cap(timings, adv7842_get_dv_timings_cap(sd), 1528 is_digital_input(sd) ? 250000 : 1000000, 1529 adv7842_check_dv_timings, NULL); 1530 timings->bt.flags |= V4L2_DV_FL_CAN_DETECT_REDUCED_FPS; 1531 } 1532 1533 static int adv7842_query_dv_timings(struct v4l2_subdev *sd, 1534 struct v4l2_dv_timings *timings) 1535 { 1536 struct adv7842_state *state = to_state(sd); 1537 struct v4l2_bt_timings *bt = &timings->bt; 1538 struct stdi_readback stdi = { 0 }; 1539 1540 v4l2_dbg(1, debug, sd, "%s:\n", __func__); 1541 1542 memset(timings, 0, sizeof(struct v4l2_dv_timings)); 1543 1544 /* SDP block */ 1545 if (state->mode == ADV7842_MODE_SDP) 1546 return -ENODATA; 1547 1548 /* read STDI */ 1549 if (read_stdi(sd, &stdi)) { 1550 state->restart_stdi_once = true; 1551 v4l2_dbg(1, debug, sd, "%s: no valid signal\n", __func__); 1552 return -ENOLINK; 1553 } 1554 bt->interlaced = stdi.interlaced ? 1555 V4L2_DV_INTERLACED : V4L2_DV_PROGRESSIVE; 1556 bt->standards = V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT | 1557 V4L2_DV_BT_STD_GTF | V4L2_DV_BT_STD_CVT; 1558 1559 if (is_digital_input(sd)) { 1560 u32 freq; 1561 1562 timings->type = V4L2_DV_BT_656_1120; 1563 1564 bt->width = (hdmi_read(sd, 0x07) & 0x0f) * 256 + hdmi_read(sd, 0x08); 1565 bt->height = (hdmi_read(sd, 0x09) & 0x0f) * 256 + hdmi_read(sd, 0x0a); 1566 freq = ((hdmi_read(sd, 0x51) << 1) + (hdmi_read(sd, 0x52) >> 7)) * 1000000; 1567 freq += ((hdmi_read(sd, 0x52) & 0x7f) * 7813); 1568 if (is_hdmi(sd)) { 1569 /* adjust for deep color mode */ 1570 freq = freq * 8 / (((hdmi_read(sd, 0x0b) & 0xc0) >> 6) * 2 + 8); 1571 } 1572 bt->pixelclock = freq; 1573 bt->hfrontporch = (hdmi_read(sd, 0x20) & 0x03) * 256 + 1574 hdmi_read(sd, 0x21); 1575 bt->hsync = (hdmi_read(sd, 0x22) & 0x03) * 256 + 1576 hdmi_read(sd, 0x23); 1577 bt->hbackporch = (hdmi_read(sd, 0x24) & 0x03) * 256 + 1578 hdmi_read(sd, 0x25); 1579 bt->vfrontporch = ((hdmi_read(sd, 0x2a) & 0x1f) * 256 + 1580 hdmi_read(sd, 0x2b)) / 2; 1581 bt->vsync = ((hdmi_read(sd, 0x2e) & 0x1f) * 256 + 1582 hdmi_read(sd, 0x2f)) / 2; 1583 bt->vbackporch = ((hdmi_read(sd, 0x32) & 0x1f) * 256 + 1584 hdmi_read(sd, 0x33)) / 2; 1585 bt->polarities = ((hdmi_read(sd, 0x05) & 0x10) ? V4L2_DV_VSYNC_POS_POL : 0) | 1586 ((hdmi_read(sd, 0x05) & 0x20) ? V4L2_DV_HSYNC_POS_POL : 0); 1587 if (bt->interlaced == V4L2_DV_INTERLACED) { 1588 bt->height += (hdmi_read(sd, 0x0b) & 0x0f) * 256 + 1589 hdmi_read(sd, 0x0c); 1590 bt->il_vfrontporch = ((hdmi_read(sd, 0x2c) & 0x1f) * 256 + 1591 hdmi_read(sd, 0x2d)) / 2; 1592 bt->il_vsync = ((hdmi_read(sd, 0x30) & 0x1f) * 256 + 1593 hdmi_read(sd, 0x31)) / 2; 1594 bt->il_vbackporch = ((hdmi_read(sd, 0x34) & 0x1f) * 256 + 1595 hdmi_read(sd, 0x35)) / 2; 1596 } else { 1597 bt->il_vfrontporch = 0; 1598 bt->il_vsync = 0; 1599 bt->il_vbackporch = 0; 1600 } 1601 adv7842_fill_optional_dv_timings_fields(sd, timings); 1602 if ((timings->bt.flags & V4L2_DV_FL_CAN_REDUCE_FPS) && 1603 freq < bt->pixelclock) { 1604 u32 reduced_freq = ((u32)bt->pixelclock / 1001) * 1000; 1605 u32 delta_freq = abs(freq - reduced_freq); 1606 1607 if (delta_freq < ((u32)bt->pixelclock - reduced_freq) / 2) 1608 timings->bt.flags |= V4L2_DV_FL_REDUCED_FPS; 1609 } 1610 } else { 1611 /* find format 1612 * Since LCVS values are inaccurate [REF_03, p. 339-340], 1613 * stdi2dv_timings() is called with lcvs +-1 if the first attempt fails. 1614 */ 1615 if (!stdi2dv_timings(sd, &stdi, timings)) 1616 goto found; 1617 stdi.lcvs += 1; 1618 v4l2_dbg(1, debug, sd, "%s: lcvs + 1 = %d\n", __func__, stdi.lcvs); 1619 if (!stdi2dv_timings(sd, &stdi, timings)) 1620 goto found; 1621 stdi.lcvs -= 2; 1622 v4l2_dbg(1, debug, sd, "%s: lcvs - 1 = %d\n", __func__, stdi.lcvs); 1623 if (stdi2dv_timings(sd, &stdi, timings)) { 1624 /* 1625 * The STDI block may measure wrong values, especially 1626 * for lcvs and lcf. If the driver can not find any 1627 * valid timing, the STDI block is restarted to measure 1628 * the video timings again. The function will return an 1629 * error, but the restart of STDI will generate a new 1630 * STDI interrupt and the format detection process will 1631 * restart. 1632 */ 1633 if (state->restart_stdi_once) { 1634 v4l2_dbg(1, debug, sd, "%s: restart STDI\n", __func__); 1635 /* TODO restart STDI for Sync Channel 2 */ 1636 /* enter one-shot mode */ 1637 cp_write_and_or(sd, 0x86, 0xf9, 0x00); 1638 /* trigger STDI restart */ 1639 cp_write_and_or(sd, 0x86, 0xf9, 0x04); 1640 /* reset to continuous mode */ 1641 cp_write_and_or(sd, 0x86, 0xf9, 0x02); 1642 state->restart_stdi_once = false; 1643 return -ENOLINK; 1644 } 1645 v4l2_dbg(1, debug, sd, "%s: format not supported\n", __func__); 1646 return -ERANGE; 1647 } 1648 state->restart_stdi_once = true; 1649 } 1650 found: 1651 1652 if (debug > 1) 1653 v4l2_print_dv_timings(sd->name, "adv7842_query_dv_timings:", 1654 timings, true); 1655 return 0; 1656 } 1657 1658 static int adv7842_s_dv_timings(struct v4l2_subdev *sd, 1659 struct v4l2_dv_timings *timings) 1660 { 1661 struct adv7842_state *state = to_state(sd); 1662 struct v4l2_bt_timings *bt; 1663 int err; 1664 1665 v4l2_dbg(1, debug, sd, "%s:\n", __func__); 1666 1667 if (state->mode == ADV7842_MODE_SDP) 1668 return -ENODATA; 1669 1670 if (v4l2_match_dv_timings(&state->timings, timings, 0, false)) { 1671 v4l2_dbg(1, debug, sd, "%s: no change\n", __func__); 1672 return 0; 1673 } 1674 1675 bt = &timings->bt; 1676 1677 if (!v4l2_valid_dv_timings(timings, adv7842_get_dv_timings_cap(sd), 1678 adv7842_check_dv_timings, NULL)) 1679 return -ERANGE; 1680 1681 adv7842_fill_optional_dv_timings_fields(sd, timings); 1682 1683 state->timings = *timings; 1684 1685 cp_write(sd, 0x91, bt->interlaced ? 0x40 : 0x00); 1686 1687 /* Use prim_mode and vid_std when available */ 1688 err = configure_predefined_video_timings(sd, timings); 1689 if (err) { 1690 /* custom settings when the video format 1691 does not have prim_mode/vid_std */ 1692 configure_custom_video_timings(sd, bt); 1693 } 1694 1695 set_rgb_quantization_range(sd); 1696 1697 1698 if (debug > 1) 1699 v4l2_print_dv_timings(sd->name, "adv7842_s_dv_timings: ", 1700 timings, true); 1701 return 0; 1702 } 1703 1704 static int adv7842_g_dv_timings(struct v4l2_subdev *sd, 1705 struct v4l2_dv_timings *timings) 1706 { 1707 struct adv7842_state *state = to_state(sd); 1708 1709 if (state->mode == ADV7842_MODE_SDP) 1710 return -ENODATA; 1711 *timings = state->timings; 1712 return 0; 1713 } 1714 1715 static void enable_input(struct v4l2_subdev *sd) 1716 { 1717 struct adv7842_state *state = to_state(sd); 1718 1719 set_rgb_quantization_range(sd); 1720 switch (state->mode) { 1721 case ADV7842_MODE_SDP: 1722 case ADV7842_MODE_COMP: 1723 case ADV7842_MODE_RGB: 1724 io_write(sd, 0x15, 0xb0); /* Disable Tristate of Pins (no audio) */ 1725 break; 1726 case ADV7842_MODE_HDMI: 1727 hdmi_write(sd, 0x01, 0x00); /* Enable HDMI clock terminators */ 1728 io_write(sd, 0x15, 0xa0); /* Disable Tristate of Pins */ 1729 hdmi_write_and_or(sd, 0x1a, 0xef, 0x00); /* Unmute audio */ 1730 break; 1731 default: 1732 v4l2_dbg(2, debug, sd, "%s: Unknown mode %d\n", 1733 __func__, state->mode); 1734 break; 1735 } 1736 } 1737 1738 static void disable_input(struct v4l2_subdev *sd) 1739 { 1740 hdmi_write_and_or(sd, 0x1a, 0xef, 0x10); /* Mute audio [REF_01, c. 2.2.2] */ 1741 msleep(16); /* 512 samples with >= 32 kHz sample rate [REF_03, c. 8.29] */ 1742 io_write(sd, 0x15, 0xbe); /* Tristate all outputs from video core */ 1743 hdmi_write(sd, 0x01, 0x78); /* Disable HDMI clock terminators */ 1744 } 1745 1746 static void sdp_csc_coeff(struct v4l2_subdev *sd, 1747 const struct adv7842_sdp_csc_coeff *c) 1748 { 1749 /* csc auto/manual */ 1750 sdp_io_write_and_or(sd, 0xe0, 0xbf, c->manual ? 0x00 : 0x40); 1751 1752 if (!c->manual) 1753 return; 1754 1755 /* csc scaling */ 1756 sdp_io_write_and_or(sd, 0xe0, 0x7f, c->scaling == 2 ? 0x80 : 0x00); 1757 1758 /* A coeff */ 1759 sdp_io_write_and_or(sd, 0xe0, 0xe0, c->A1 >> 8); 1760 sdp_io_write(sd, 0xe1, c->A1); 1761 sdp_io_write_and_or(sd, 0xe2, 0xe0, c->A2 >> 8); 1762 sdp_io_write(sd, 0xe3, c->A2); 1763 sdp_io_write_and_or(sd, 0xe4, 0xe0, c->A3 >> 8); 1764 sdp_io_write(sd, 0xe5, c->A3); 1765 1766 /* A scale */ 1767 sdp_io_write_and_or(sd, 0xe6, 0x80, c->A4 >> 8); 1768 sdp_io_write(sd, 0xe7, c->A4); 1769 1770 /* B coeff */ 1771 sdp_io_write_and_or(sd, 0xe8, 0xe0, c->B1 >> 8); 1772 sdp_io_write(sd, 0xe9, c->B1); 1773 sdp_io_write_and_or(sd, 0xea, 0xe0, c->B2 >> 8); 1774 sdp_io_write(sd, 0xeb, c->B2); 1775 sdp_io_write_and_or(sd, 0xec, 0xe0, c->B3 >> 8); 1776 sdp_io_write(sd, 0xed, c->B3); 1777 1778 /* B scale */ 1779 sdp_io_write_and_or(sd, 0xee, 0x80, c->B4 >> 8); 1780 sdp_io_write(sd, 0xef, c->B4); 1781 1782 /* C coeff */ 1783 sdp_io_write_and_or(sd, 0xf0, 0xe0, c->C1 >> 8); 1784 sdp_io_write(sd, 0xf1, c->C1); 1785 sdp_io_write_and_or(sd, 0xf2, 0xe0, c->C2 >> 8); 1786 sdp_io_write(sd, 0xf3, c->C2); 1787 sdp_io_write_and_or(sd, 0xf4, 0xe0, c->C3 >> 8); 1788 sdp_io_write(sd, 0xf5, c->C3); 1789 1790 /* C scale */ 1791 sdp_io_write_and_or(sd, 0xf6, 0x80, c->C4 >> 8); 1792 sdp_io_write(sd, 0xf7, c->C4); 1793 } 1794 1795 static void select_input(struct v4l2_subdev *sd, 1796 enum adv7842_vid_std_select vid_std_select) 1797 { 1798 struct adv7842_state *state = to_state(sd); 1799 1800 switch (state->mode) { 1801 case ADV7842_MODE_SDP: 1802 io_write(sd, 0x00, vid_std_select); /* video std: CVBS or YC mode */ 1803 io_write(sd, 0x01, 0); /* prim mode */ 1804 /* enable embedded syncs for auto graphics mode */ 1805 cp_write_and_or(sd, 0x81, 0xef, 0x10); 1806 1807 afe_write(sd, 0x00, 0x00); /* power up ADC */ 1808 afe_write(sd, 0xc8, 0x00); /* phase control */ 1809 1810 io_write(sd, 0xdd, 0x90); /* Manual 2x output clock */ 1811 /* script says register 0xde, which don't exist in manual */ 1812 1813 /* Manual analog input muxing mode, CVBS (6.4)*/ 1814 afe_write_and_or(sd, 0x02, 0x7f, 0x80); 1815 if (vid_std_select == ADV7842_SDP_VID_STD_CVBS_SD_4x1) { 1816 afe_write(sd, 0x03, 0xa0); /* ADC0 to AIN10 (CVBS), ADC1 N/C*/ 1817 afe_write(sd, 0x04, 0x00); /* ADC2 N/C,ADC3 N/C*/ 1818 } else { 1819 afe_write(sd, 0x03, 0xa0); /* ADC0 to AIN10 (CVBS), ADC1 N/C*/ 1820 afe_write(sd, 0x04, 0xc0); /* ADC2 to AIN12, ADC3 N/C*/ 1821 } 1822 afe_write(sd, 0x0c, 0x1f); /* ADI recommend write */ 1823 afe_write(sd, 0x12, 0x63); /* ADI recommend write */ 1824 1825 sdp_io_write(sd, 0xb2, 0x60); /* Disable AV codes */ 1826 sdp_io_write(sd, 0xc8, 0xe3); /* Disable Ancillary data */ 1827 1828 /* SDP recommended settings */ 1829 sdp_write(sd, 0x00, 0x3F); /* Autodetect PAL NTSC (not SECAM) */ 1830 sdp_write(sd, 0x01, 0x00); /* Pedestal Off */ 1831 1832 sdp_write(sd, 0x03, 0xE4); /* Manual VCR Gain Luma 0x40B */ 1833 sdp_write(sd, 0x04, 0x0B); /* Manual Luma setting */ 1834 sdp_write(sd, 0x05, 0xC3); /* Manual Chroma setting 0x3FE */ 1835 sdp_write(sd, 0x06, 0xFE); /* Manual Chroma setting */ 1836 sdp_write(sd, 0x12, 0x0D); /* Frame TBC,I_P, 3D comb enabled */ 1837 sdp_write(sd, 0xA7, 0x00); /* ADI Recommended Write */ 1838 sdp_io_write(sd, 0xB0, 0x00); /* Disable H and v blanking */ 1839 1840 /* deinterlacer enabled and 3D comb */ 1841 sdp_write_and_or(sd, 0x12, 0xf6, 0x09); 1842 1843 break; 1844 1845 case ADV7842_MODE_COMP: 1846 case ADV7842_MODE_RGB: 1847 /* Automatic analog input muxing mode */ 1848 afe_write_and_or(sd, 0x02, 0x7f, 0x00); 1849 /* set mode and select free run resolution */ 1850 io_write(sd, 0x00, vid_std_select); /* video std */ 1851 io_write(sd, 0x01, 0x02); /* prim mode */ 1852 cp_write_and_or(sd, 0x81, 0xef, 0x10); /* enable embedded syncs 1853 for auto graphics mode */ 1854 1855 afe_write(sd, 0x00, 0x00); /* power up ADC */ 1856 afe_write(sd, 0xc8, 0x00); /* phase control */ 1857 if (state->mode == ADV7842_MODE_COMP) { 1858 /* force to YCrCb */ 1859 io_write_and_or(sd, 0x02, 0x0f, 0x60); 1860 } else { 1861 /* force to RGB */ 1862 io_write_and_or(sd, 0x02, 0x0f, 0x10); 1863 } 1864 1865 /* set ADI recommended settings for digitizer */ 1866 /* "ADV7842 Register Settings Recommendations 1867 * (rev. 1.8, November 2010)" p. 9. */ 1868 afe_write(sd, 0x0c, 0x1f); /* ADC Range improvement */ 1869 afe_write(sd, 0x12, 0x63); /* ADC Range improvement */ 1870 1871 /* set to default gain for RGB */ 1872 cp_write(sd, 0x73, 0x10); 1873 cp_write(sd, 0x74, 0x04); 1874 cp_write(sd, 0x75, 0x01); 1875 cp_write(sd, 0x76, 0x00); 1876 1877 cp_write(sd, 0x3e, 0x04); /* CP core pre-gain control */ 1878 cp_write(sd, 0xc3, 0x39); /* CP coast control. Graphics mode */ 1879 cp_write(sd, 0x40, 0x5c); /* CP core pre-gain control. Graphics mode */ 1880 break; 1881 1882 case ADV7842_MODE_HDMI: 1883 /* Automatic analog input muxing mode */ 1884 afe_write_and_or(sd, 0x02, 0x7f, 0x00); 1885 /* set mode and select free run resolution */ 1886 if (state->hdmi_port_a) 1887 hdmi_write(sd, 0x00, 0x02); /* select port A */ 1888 else 1889 hdmi_write(sd, 0x00, 0x03); /* select port B */ 1890 io_write(sd, 0x00, vid_std_select); /* video std */ 1891 io_write(sd, 0x01, 5); /* prim mode */ 1892 cp_write_and_or(sd, 0x81, 0xef, 0x00); /* disable embedded syncs 1893 for auto graphics mode */ 1894 1895 /* set ADI recommended settings for HDMI: */ 1896 /* "ADV7842 Register Settings Recommendations 1897 * (rev. 1.8, November 2010)" p. 3. */ 1898 hdmi_write(sd, 0xc0, 0x00); 1899 hdmi_write(sd, 0x0d, 0x34); /* ADI recommended write */ 1900 hdmi_write(sd, 0x3d, 0x10); /* ADI recommended write */ 1901 hdmi_write(sd, 0x44, 0x85); /* TMDS PLL optimization */ 1902 hdmi_write(sd, 0x46, 0x1f); /* ADI recommended write */ 1903 hdmi_write(sd, 0x57, 0xb6); /* TMDS PLL optimization */ 1904 hdmi_write(sd, 0x58, 0x03); /* TMDS PLL optimization */ 1905 hdmi_write(sd, 0x60, 0x88); /* TMDS PLL optimization */ 1906 hdmi_write(sd, 0x61, 0x88); /* TMDS PLL optimization */ 1907 hdmi_write(sd, 0x6c, 0x18); /* Disable ISRC clearing bit, 1908 Improve robustness */ 1909 hdmi_write(sd, 0x75, 0x10); /* DDC drive strength */ 1910 hdmi_write(sd, 0x85, 0x1f); /* equaliser */ 1911 hdmi_write(sd, 0x87, 0x70); /* ADI recommended write */ 1912 hdmi_write(sd, 0x89, 0x04); /* equaliser */ 1913 hdmi_write(sd, 0x8a, 0x1e); /* equaliser */ 1914 hdmi_write(sd, 0x93, 0x04); /* equaliser */ 1915 hdmi_write(sd, 0x94, 0x1e); /* equaliser */ 1916 hdmi_write(sd, 0x99, 0xa1); /* ADI recommended write */ 1917 hdmi_write(sd, 0x9b, 0x09); /* ADI recommended write */ 1918 hdmi_write(sd, 0x9d, 0x02); /* equaliser */ 1919 1920 afe_write(sd, 0x00, 0xff); /* power down ADC */ 1921 afe_write(sd, 0xc8, 0x40); /* phase control */ 1922 1923 /* set to default gain for HDMI */ 1924 cp_write(sd, 0x73, 0x10); 1925 cp_write(sd, 0x74, 0x04); 1926 cp_write(sd, 0x75, 0x01); 1927 cp_write(sd, 0x76, 0x00); 1928 1929 /* reset ADI recommended settings for digitizer */ 1930 /* "ADV7842 Register Settings Recommendations 1931 * (rev. 2.5, June 2010)" p. 17. */ 1932 afe_write(sd, 0x12, 0xfb); /* ADC noise shaping filter controls */ 1933 afe_write(sd, 0x0c, 0x0d); /* CP core gain controls */ 1934 cp_write(sd, 0x3e, 0x00); /* CP core pre-gain control */ 1935 1936 /* CP coast control */ 1937 cp_write(sd, 0xc3, 0x33); /* Component mode */ 1938 1939 /* color space conversion, autodetect color space */ 1940 io_write_and_or(sd, 0x02, 0x0f, 0xf0); 1941 break; 1942 1943 default: 1944 v4l2_dbg(2, debug, sd, "%s: Unknown mode %d\n", 1945 __func__, state->mode); 1946 break; 1947 } 1948 } 1949 1950 static int adv7842_s_routing(struct v4l2_subdev *sd, 1951 u32 input, u32 output, u32 config) 1952 { 1953 struct adv7842_state *state = to_state(sd); 1954 1955 v4l2_dbg(2, debug, sd, "%s: input %d\n", __func__, input); 1956 1957 switch (input) { 1958 case ADV7842_SELECT_HDMI_PORT_A: 1959 state->mode = ADV7842_MODE_HDMI; 1960 state->vid_std_select = ADV7842_HDMI_COMP_VID_STD_HD_1250P; 1961 state->hdmi_port_a = true; 1962 break; 1963 case ADV7842_SELECT_HDMI_PORT_B: 1964 state->mode = ADV7842_MODE_HDMI; 1965 state->vid_std_select = ADV7842_HDMI_COMP_VID_STD_HD_1250P; 1966 state->hdmi_port_a = false; 1967 break; 1968 case ADV7842_SELECT_VGA_COMP: 1969 state->mode = ADV7842_MODE_COMP; 1970 state->vid_std_select = ADV7842_RGB_VID_STD_AUTO_GRAPH_MODE; 1971 break; 1972 case ADV7842_SELECT_VGA_RGB: 1973 state->mode = ADV7842_MODE_RGB; 1974 state->vid_std_select = ADV7842_RGB_VID_STD_AUTO_GRAPH_MODE; 1975 break; 1976 case ADV7842_SELECT_SDP_CVBS: 1977 state->mode = ADV7842_MODE_SDP; 1978 state->vid_std_select = ADV7842_SDP_VID_STD_CVBS_SD_4x1; 1979 break; 1980 case ADV7842_SELECT_SDP_YC: 1981 state->mode = ADV7842_MODE_SDP; 1982 state->vid_std_select = ADV7842_SDP_VID_STD_YC_SD4_x1; 1983 break; 1984 default: 1985 return -EINVAL; 1986 } 1987 1988 disable_input(sd); 1989 select_input(sd, state->vid_std_select); 1990 enable_input(sd); 1991 1992 v4l2_subdev_notify_event(sd, &adv7842_ev_fmt); 1993 1994 return 0; 1995 } 1996 1997 static int adv7842_enum_mbus_code(struct v4l2_subdev *sd, 1998 struct v4l2_subdev_pad_config *cfg, 1999 struct v4l2_subdev_mbus_code_enum *code) 2000 { 2001 if (code->index >= ARRAY_SIZE(adv7842_formats)) 2002 return -EINVAL; 2003 code->code = adv7842_formats[code->index].code; 2004 return 0; 2005 } 2006 2007 static void adv7842_fill_format(struct adv7842_state *state, 2008 struct v4l2_mbus_framefmt *format) 2009 { 2010 memset(format, 0, sizeof(*format)); 2011 2012 format->width = state->timings.bt.width; 2013 format->height = state->timings.bt.height; 2014 format->field = V4L2_FIELD_NONE; 2015 format->colorspace = V4L2_COLORSPACE_SRGB; 2016 2017 if (state->timings.bt.flags & V4L2_DV_FL_IS_CE_VIDEO) 2018 format->colorspace = (state->timings.bt.height <= 576) ? 2019 V4L2_COLORSPACE_SMPTE170M : V4L2_COLORSPACE_REC709; 2020 } 2021 2022 /* 2023 * Compute the op_ch_sel value required to obtain on the bus the component order 2024 * corresponding to the selected format taking into account bus reordering 2025 * applied by the board at the output of the device. 2026 * 2027 * The following table gives the op_ch_value from the format component order 2028 * (expressed as op_ch_sel value in column) and the bus reordering (expressed as 2029 * adv7842_bus_order value in row). 2030 * 2031 * | GBR(0) GRB(1) BGR(2) RGB(3) BRG(4) RBG(5) 2032 * ----------+------------------------------------------------- 2033 * RGB (NOP) | GBR GRB BGR RGB BRG RBG 2034 * GRB (1-2) | BGR RGB GBR GRB RBG BRG 2035 * RBG (2-3) | GRB GBR BRG RBG BGR RGB 2036 * BGR (1-3) | RBG BRG RGB BGR GRB GBR 2037 * BRG (ROR) | BRG RBG GRB GBR RGB BGR 2038 * GBR (ROL) | RGB BGR RBG BRG GBR GRB 2039 */ 2040 static unsigned int adv7842_op_ch_sel(struct adv7842_state *state) 2041 { 2042 #define _SEL(a, b, c, d, e, f) { \ 2043 ADV7842_OP_CH_SEL_##a, ADV7842_OP_CH_SEL_##b, ADV7842_OP_CH_SEL_##c, \ 2044 ADV7842_OP_CH_SEL_##d, ADV7842_OP_CH_SEL_##e, ADV7842_OP_CH_SEL_##f } 2045 #define _BUS(x) [ADV7842_BUS_ORDER_##x] 2046 2047 static const unsigned int op_ch_sel[6][6] = { 2048 _BUS(RGB) /* NOP */ = _SEL(GBR, GRB, BGR, RGB, BRG, RBG), 2049 _BUS(GRB) /* 1-2 */ = _SEL(BGR, RGB, GBR, GRB, RBG, BRG), 2050 _BUS(RBG) /* 2-3 */ = _SEL(GRB, GBR, BRG, RBG, BGR, RGB), 2051 _BUS(BGR) /* 1-3 */ = _SEL(RBG, BRG, RGB, BGR, GRB, GBR), 2052 _BUS(BRG) /* ROR */ = _SEL(BRG, RBG, GRB, GBR, RGB, BGR), 2053 _BUS(GBR) /* ROL */ = _SEL(RGB, BGR, RBG, BRG, GBR, GRB), 2054 }; 2055 2056 return op_ch_sel[state->pdata.bus_order][state->format->op_ch_sel >> 5]; 2057 } 2058 2059 static void adv7842_setup_format(struct adv7842_state *state) 2060 { 2061 struct v4l2_subdev *sd = &state->sd; 2062 2063 io_write_clr_set(sd, 0x02, 0x02, 2064 state->format->rgb_out ? ADV7842_RGB_OUT : 0); 2065 io_write(sd, 0x03, state->format->op_format_sel | 2066 state->pdata.op_format_mode_sel); 2067 io_write_clr_set(sd, 0x04, 0xe0, adv7842_op_ch_sel(state)); 2068 io_write_clr_set(sd, 0x05, 0x01, 2069 state->format->swap_cb_cr ? ADV7842_OP_SWAP_CB_CR : 0); 2070 set_rgb_quantization_range(sd); 2071 } 2072 2073 static int adv7842_get_format(struct v4l2_subdev *sd, 2074 struct v4l2_subdev_pad_config *cfg, 2075 struct v4l2_subdev_format *format) 2076 { 2077 struct adv7842_state *state = to_state(sd); 2078 2079 if (format->pad != ADV7842_PAD_SOURCE) 2080 return -EINVAL; 2081 2082 if (state->mode == ADV7842_MODE_SDP) { 2083 /* SPD block */ 2084 if (!(sdp_read(sd, 0x5a) & 0x01)) 2085 return -EINVAL; 2086 format->format.code = MEDIA_BUS_FMT_YUYV8_2X8; 2087 format->format.width = 720; 2088 /* valid signal */ 2089 if (state->norm & V4L2_STD_525_60) 2090 format->format.height = 480; 2091 else 2092 format->format.height = 576; 2093 format->format.colorspace = V4L2_COLORSPACE_SMPTE170M; 2094 return 0; 2095 } 2096 2097 adv7842_fill_format(state, &format->format); 2098 2099 if (format->which == V4L2_SUBDEV_FORMAT_TRY) { 2100 struct v4l2_mbus_framefmt *fmt; 2101 2102 fmt = v4l2_subdev_get_try_format(sd, cfg, format->pad); 2103 format->format.code = fmt->code; 2104 } else { 2105 format->format.code = state->format->code; 2106 } 2107 2108 return 0; 2109 } 2110 2111 static int adv7842_set_format(struct v4l2_subdev *sd, 2112 struct v4l2_subdev_pad_config *cfg, 2113 struct v4l2_subdev_format *format) 2114 { 2115 struct adv7842_state *state = to_state(sd); 2116 const struct adv7842_format_info *info; 2117 2118 if (format->pad != ADV7842_PAD_SOURCE) 2119 return -EINVAL; 2120 2121 if (state->mode == ADV7842_MODE_SDP) 2122 return adv7842_get_format(sd, cfg, format); 2123 2124 info = adv7842_format_info(state, format->format.code); 2125 if (info == NULL) 2126 info = adv7842_format_info(state, MEDIA_BUS_FMT_YUYV8_2X8); 2127 2128 adv7842_fill_format(state, &format->format); 2129 format->format.code = info->code; 2130 2131 if (format->which == V4L2_SUBDEV_FORMAT_TRY) { 2132 struct v4l2_mbus_framefmt *fmt; 2133 2134 fmt = v4l2_subdev_get_try_format(sd, cfg, format->pad); 2135 fmt->code = format->format.code; 2136 } else { 2137 state->format = info; 2138 adv7842_setup_format(state); 2139 } 2140 2141 return 0; 2142 } 2143 2144 static void adv7842_irq_enable(struct v4l2_subdev *sd, bool enable) 2145 { 2146 if (enable) { 2147 /* Enable SSPD, STDI and CP locked/unlocked interrupts */ 2148 io_write(sd, 0x46, 0x9c); 2149 /* ESDP_50HZ_DET interrupt */ 2150 io_write(sd, 0x5a, 0x10); 2151 /* Enable CABLE_DET_A/B_ST (+5v) interrupt */ 2152 io_write(sd, 0x73, 0x03); 2153 /* Enable V_LOCKED and DE_REGEN_LCK interrupts */ 2154 io_write(sd, 0x78, 0x03); 2155 /* Enable SDP Standard Detection Change and SDP Video Detected */ 2156 io_write(sd, 0xa0, 0x09); 2157 /* Enable HDMI_MODE interrupt */ 2158 io_write(sd, 0x69, 0x08); 2159 } else { 2160 io_write(sd, 0x46, 0x0); 2161 io_write(sd, 0x5a, 0x0); 2162 io_write(sd, 0x73, 0x0); 2163 io_write(sd, 0x78, 0x0); 2164 io_write(sd, 0xa0, 0x0); 2165 io_write(sd, 0x69, 0x0); 2166 } 2167 } 2168 2169 #if IS_ENABLED(CONFIG_VIDEO_ADV7842_CEC) 2170 static void adv7842_cec_tx_raw_status(struct v4l2_subdev *sd, u8 tx_raw_status) 2171 { 2172 struct adv7842_state *state = to_state(sd); 2173 2174 if ((cec_read(sd, 0x11) & 0x01) == 0) { 2175 v4l2_dbg(1, debug, sd, "%s: tx raw: tx disabled\n", __func__); 2176 return; 2177 } 2178 2179 if (tx_raw_status & 0x02) { 2180 v4l2_dbg(1, debug, sd, "%s: tx raw: arbitration lost\n", 2181 __func__); 2182 cec_transmit_done(state->cec_adap, CEC_TX_STATUS_ARB_LOST, 2183 1, 0, 0, 0); 2184 return; 2185 } 2186 if (tx_raw_status & 0x04) { 2187 u8 status; 2188 u8 nack_cnt; 2189 u8 low_drive_cnt; 2190 2191 v4l2_dbg(1, debug, sd, "%s: tx raw: retry failed\n", __func__); 2192 /* 2193 * We set this status bit since this hardware performs 2194 * retransmissions. 2195 */ 2196 status = CEC_TX_STATUS_MAX_RETRIES; 2197 nack_cnt = cec_read(sd, 0x14) & 0xf; 2198 if (nack_cnt) 2199 status |= CEC_TX_STATUS_NACK; 2200 low_drive_cnt = cec_read(sd, 0x14) >> 4; 2201 if (low_drive_cnt) 2202 status |= CEC_TX_STATUS_LOW_DRIVE; 2203 cec_transmit_done(state->cec_adap, status, 2204 0, nack_cnt, low_drive_cnt, 0); 2205 return; 2206 } 2207 if (tx_raw_status & 0x01) { 2208 v4l2_dbg(1, debug, sd, "%s: tx raw: ready ok\n", __func__); 2209 cec_transmit_done(state->cec_adap, CEC_TX_STATUS_OK, 0, 0, 0, 0); 2210 return; 2211 } 2212 } 2213 2214 static void adv7842_cec_isr(struct v4l2_subdev *sd, bool *handled) 2215 { 2216 u8 cec_irq; 2217 2218 /* cec controller */ 2219 cec_irq = io_read(sd, 0x93) & 0x0f; 2220 if (!cec_irq) 2221 return; 2222 2223 v4l2_dbg(1, debug, sd, "%s: cec: irq 0x%x\n", __func__, cec_irq); 2224 adv7842_cec_tx_raw_status(sd, cec_irq); 2225 if (cec_irq & 0x08) { 2226 struct adv7842_state *state = to_state(sd); 2227 struct cec_msg msg; 2228 2229 msg.len = cec_read(sd, 0x25) & 0x1f; 2230 if (msg.len > 16) 2231 msg.len = 16; 2232 2233 if (msg.len) { 2234 u8 i; 2235 2236 for (i = 0; i < msg.len; i++) 2237 msg.msg[i] = cec_read(sd, i + 0x15); 2238 cec_write(sd, 0x26, 0x01); /* re-enable rx */ 2239 cec_received_msg(state->cec_adap, &msg); 2240 } 2241 } 2242 2243 io_write(sd, 0x94, cec_irq); 2244 2245 if (handled) 2246 *handled = true; 2247 } 2248 2249 static int adv7842_cec_adap_enable(struct cec_adapter *adap, bool enable) 2250 { 2251 struct adv7842_state *state = cec_get_drvdata(adap); 2252 struct v4l2_subdev *sd = &state->sd; 2253 2254 if (!state->cec_enabled_adap && enable) { 2255 cec_write_clr_set(sd, 0x2a, 0x01, 0x01); /* power up cec */ 2256 cec_write(sd, 0x2c, 0x01); /* cec soft reset */ 2257 cec_write_clr_set(sd, 0x11, 0x01, 0); /* initially disable tx */ 2258 /* enabled irqs: */ 2259 /* tx: ready */ 2260 /* tx: arbitration lost */ 2261 /* tx: retry timeout */ 2262 /* rx: ready */ 2263 io_write_clr_set(sd, 0x96, 0x0f, 0x0f); 2264 cec_write(sd, 0x26, 0x01); /* enable rx */ 2265 } else if (state->cec_enabled_adap && !enable) { 2266 /* disable cec interrupts */ 2267 io_write_clr_set(sd, 0x96, 0x0f, 0x00); 2268 /* disable address mask 1-3 */ 2269 cec_write_clr_set(sd, 0x27, 0x70, 0x00); 2270 /* power down cec section */ 2271 cec_write_clr_set(sd, 0x2a, 0x01, 0x00); 2272 state->cec_valid_addrs = 0; 2273 } 2274 state->cec_enabled_adap = enable; 2275 return 0; 2276 } 2277 2278 static int adv7842_cec_adap_log_addr(struct cec_adapter *adap, u8 addr) 2279 { 2280 struct adv7842_state *state = cec_get_drvdata(adap); 2281 struct v4l2_subdev *sd = &state->sd; 2282 unsigned int i, free_idx = ADV7842_MAX_ADDRS; 2283 2284 if (!state->cec_enabled_adap) 2285 return addr == CEC_LOG_ADDR_INVALID ? 0 : -EIO; 2286 2287 if (addr == CEC_LOG_ADDR_INVALID) { 2288 cec_write_clr_set(sd, 0x27, 0x70, 0); 2289 state->cec_valid_addrs = 0; 2290 return 0; 2291 } 2292 2293 for (i = 0; i < ADV7842_MAX_ADDRS; i++) { 2294 bool is_valid = state->cec_valid_addrs & (1 << i); 2295 2296 if (free_idx == ADV7842_MAX_ADDRS && !is_valid) 2297 free_idx = i; 2298 if (is_valid && state->cec_addr[i] == addr) 2299 return 0; 2300 } 2301 if (i == ADV7842_MAX_ADDRS) { 2302 i = free_idx; 2303 if (i == ADV7842_MAX_ADDRS) 2304 return -ENXIO; 2305 } 2306 state->cec_addr[i] = addr; 2307 state->cec_valid_addrs |= 1 << i; 2308 2309 switch (i) { 2310 case 0: 2311 /* enable address mask 0 */ 2312 cec_write_clr_set(sd, 0x27, 0x10, 0x10); 2313 /* set address for mask 0 */ 2314 cec_write_clr_set(sd, 0x28, 0x0f, addr); 2315 break; 2316 case 1: 2317 /* enable address mask 1 */ 2318 cec_write_clr_set(sd, 0x27, 0x20, 0x20); 2319 /* set address for mask 1 */ 2320 cec_write_clr_set(sd, 0x28, 0xf0, addr << 4); 2321 break; 2322 case 2: 2323 /* enable address mask 2 */ 2324 cec_write_clr_set(sd, 0x27, 0x40, 0x40); 2325 /* set address for mask 1 */ 2326 cec_write_clr_set(sd, 0x29, 0x0f, addr); 2327 break; 2328 } 2329 return 0; 2330 } 2331 2332 static int adv7842_cec_adap_transmit(struct cec_adapter *adap, u8 attempts, 2333 u32 signal_free_time, struct cec_msg *msg) 2334 { 2335 struct adv7842_state *state = cec_get_drvdata(adap); 2336 struct v4l2_subdev *sd = &state->sd; 2337 u8 len = msg->len; 2338 unsigned int i; 2339 2340 /* 2341 * The number of retries is the number of attempts - 1, but retry 2342 * at least once. It's not clear if a value of 0 is allowed, so 2343 * let's do at least one retry. 2344 */ 2345 cec_write_clr_set(sd, 0x12, 0x70, max(1, attempts - 1) << 4); 2346 2347 if (len > 16) { 2348 v4l2_err(sd, "%s: len exceeded 16 (%d)\n", __func__, len); 2349 return -EINVAL; 2350 } 2351 2352 /* write data */ 2353 for (i = 0; i < len; i++) 2354 cec_write(sd, i, msg->msg[i]); 2355 2356 /* set length (data + header) */ 2357 cec_write(sd, 0x10, len); 2358 /* start transmit, enable tx */ 2359 cec_write(sd, 0x11, 0x01); 2360 return 0; 2361 } 2362 2363 static const struct cec_adap_ops adv7842_cec_adap_ops = { 2364 .adap_enable = adv7842_cec_adap_enable, 2365 .adap_log_addr = adv7842_cec_adap_log_addr, 2366 .adap_transmit = adv7842_cec_adap_transmit, 2367 }; 2368 #endif 2369 2370 static int adv7842_isr(struct v4l2_subdev *sd, u32 status, bool *handled) 2371 { 2372 struct adv7842_state *state = to_state(sd); 2373 u8 fmt_change_cp, fmt_change_digital, fmt_change_sdp; 2374 u8 irq_status[6]; 2375 2376 adv7842_irq_enable(sd, false); 2377 2378 /* read status */ 2379 irq_status[0] = io_read(sd, 0x43); 2380 irq_status[1] = io_read(sd, 0x57); 2381 irq_status[2] = io_read(sd, 0x70); 2382 irq_status[3] = io_read(sd, 0x75); 2383 irq_status[4] = io_read(sd, 0x9d); 2384 irq_status[5] = io_read(sd, 0x66); 2385 2386 /* and clear */ 2387 if (irq_status[0]) 2388 io_write(sd, 0x44, irq_status[0]); 2389 if (irq_status[1]) 2390 io_write(sd, 0x58, irq_status[1]); 2391 if (irq_status[2]) 2392 io_write(sd, 0x71, irq_status[2]); 2393 if (irq_status[3]) 2394 io_write(sd, 0x76, irq_status[3]); 2395 if (irq_status[4]) 2396 io_write(sd, 0x9e, irq_status[4]); 2397 if (irq_status[5]) 2398 io_write(sd, 0x67, irq_status[5]); 2399 2400 adv7842_irq_enable(sd, true); 2401 2402 v4l2_dbg(1, debug, sd, "%s: irq %x, %x, %x, %x, %x, %x\n", __func__, 2403 irq_status[0], irq_status[1], irq_status[2], 2404 irq_status[3], irq_status[4], irq_status[5]); 2405 2406 /* format change CP */ 2407 fmt_change_cp = irq_status[0] & 0x9c; 2408 2409 /* format change SDP */ 2410 if (state->mode == ADV7842_MODE_SDP) 2411 fmt_change_sdp = (irq_status[1] & 0x30) | (irq_status[4] & 0x09); 2412 else 2413 fmt_change_sdp = 0; 2414 2415 /* digital format CP */ 2416 if (is_digital_input(sd)) 2417 fmt_change_digital = irq_status[3] & 0x03; 2418 else 2419 fmt_change_digital = 0; 2420 2421 /* format change */ 2422 if (fmt_change_cp || fmt_change_digital || fmt_change_sdp) { 2423 v4l2_dbg(1, debug, sd, 2424 "%s: fmt_change_cp = 0x%x, fmt_change_digital = 0x%x, fmt_change_sdp = 0x%x\n", 2425 __func__, fmt_change_cp, fmt_change_digital, 2426 fmt_change_sdp); 2427 v4l2_subdev_notify_event(sd, &adv7842_ev_fmt); 2428 if (handled) 2429 *handled = true; 2430 } 2431 2432 /* HDMI/DVI mode */ 2433 if (irq_status[5] & 0x08) { 2434 v4l2_dbg(1, debug, sd, "%s: irq %s mode\n", __func__, 2435 (io_read(sd, 0x65) & 0x08) ? "HDMI" : "DVI"); 2436 set_rgb_quantization_range(sd); 2437 if (handled) 2438 *handled = true; 2439 } 2440 2441 #if IS_ENABLED(CONFIG_VIDEO_ADV7842_CEC) 2442 /* cec */ 2443 adv7842_cec_isr(sd, handled); 2444 #endif 2445 2446 /* tx 5v detect */ 2447 if (irq_status[2] & 0x3) { 2448 v4l2_dbg(1, debug, sd, "%s: irq tx_5v\n", __func__); 2449 adv7842_s_detect_tx_5v_ctrl(sd); 2450 if (handled) 2451 *handled = true; 2452 } 2453 return 0; 2454 } 2455 2456 static int adv7842_get_edid(struct v4l2_subdev *sd, struct v4l2_edid *edid) 2457 { 2458 struct adv7842_state *state = to_state(sd); 2459 u8 *data = NULL; 2460 2461 memset(edid->reserved, 0, sizeof(edid->reserved)); 2462 2463 switch (edid->pad) { 2464 case ADV7842_EDID_PORT_A: 2465 case ADV7842_EDID_PORT_B: 2466 if (state->hdmi_edid.present & (0x04 << edid->pad)) 2467 data = state->hdmi_edid.edid; 2468 break; 2469 case ADV7842_EDID_PORT_VGA: 2470 if (state->vga_edid.present) 2471 data = state->vga_edid.edid; 2472 break; 2473 default: 2474 return -EINVAL; 2475 } 2476 2477 if (edid->start_block == 0 && edid->blocks == 0) { 2478 edid->blocks = data ? 2 : 0; 2479 return 0; 2480 } 2481 2482 if (!data) 2483 return -ENODATA; 2484 2485 if (edid->start_block >= 2) 2486 return -EINVAL; 2487 2488 if (edid->start_block + edid->blocks > 2) 2489 edid->blocks = 2 - edid->start_block; 2490 2491 memcpy(edid->edid, data + edid->start_block * 128, edid->blocks * 128); 2492 2493 return 0; 2494 } 2495 2496 static int adv7842_set_edid(struct v4l2_subdev *sd, struct v4l2_edid *e) 2497 { 2498 struct adv7842_state *state = to_state(sd); 2499 int err = 0; 2500 2501 memset(e->reserved, 0, sizeof(e->reserved)); 2502 2503 if (e->pad > ADV7842_EDID_PORT_VGA) 2504 return -EINVAL; 2505 if (e->start_block != 0) 2506 return -EINVAL; 2507 if (e->blocks > 2) { 2508 e->blocks = 2; 2509 return -E2BIG; 2510 } 2511 2512 /* todo, per edid */ 2513 state->aspect_ratio = v4l2_calc_aspect_ratio(e->edid[0x15], 2514 e->edid[0x16]); 2515 2516 switch (e->pad) { 2517 case ADV7842_EDID_PORT_VGA: 2518 memset(&state->vga_edid.edid, 0, 256); 2519 state->vga_edid.present = e->blocks ? 0x1 : 0x0; 2520 memcpy(&state->vga_edid.edid, e->edid, 128 * e->blocks); 2521 err = edid_write_vga_segment(sd); 2522 break; 2523 case ADV7842_EDID_PORT_A: 2524 case ADV7842_EDID_PORT_B: 2525 memset(&state->hdmi_edid.edid, 0, 256); 2526 if (e->blocks) { 2527 state->hdmi_edid.present |= 0x04 << e->pad; 2528 } else { 2529 state->hdmi_edid.present &= ~(0x04 << e->pad); 2530 adv7842_s_detect_tx_5v_ctrl(sd); 2531 } 2532 memcpy(&state->hdmi_edid.edid, e->edid, 128 * e->blocks); 2533 err = edid_write_hdmi_segment(sd, e->pad); 2534 break; 2535 default: 2536 return -EINVAL; 2537 } 2538 if (err < 0) 2539 v4l2_err(sd, "error %d writing edid on port %d\n", err, e->pad); 2540 return err; 2541 } 2542 2543 struct adv7842_cfg_read_infoframe { 2544 const char *desc; 2545 u8 present_mask; 2546 u8 head_addr; 2547 u8 payload_addr; 2548 }; 2549 2550 static void log_infoframe(struct v4l2_subdev *sd, const struct adv7842_cfg_read_infoframe *cri) 2551 { 2552 int i; 2553 u8 buffer[32]; 2554 union hdmi_infoframe frame; 2555 u8 len; 2556 struct i2c_client *client = v4l2_get_subdevdata(sd); 2557 struct device *dev = &client->dev; 2558 2559 if (!(io_read(sd, 0x60) & cri->present_mask)) { 2560 v4l2_info(sd, "%s infoframe not received\n", cri->desc); 2561 return; 2562 } 2563 2564 for (i = 0; i < 3; i++) 2565 buffer[i] = infoframe_read(sd, cri->head_addr + i); 2566 2567 len = buffer[2] + 1; 2568 2569 if (len + 3 > sizeof(buffer)) { 2570 v4l2_err(sd, "%s: invalid %s infoframe length %d\n", __func__, cri->desc, len); 2571 return; 2572 } 2573 2574 for (i = 0; i < len; i++) 2575 buffer[i + 3] = infoframe_read(sd, cri->payload_addr + i); 2576 2577 if (hdmi_infoframe_unpack(&frame, buffer, sizeof(buffer)) < 0) { 2578 v4l2_err(sd, "%s: unpack of %s infoframe failed\n", __func__, cri->desc); 2579 return; 2580 } 2581 2582 hdmi_infoframe_log(KERN_INFO, dev, &frame); 2583 } 2584 2585 static void adv7842_log_infoframes(struct v4l2_subdev *sd) 2586 { 2587 int i; 2588 static const struct adv7842_cfg_read_infoframe cri[] = { 2589 { "AVI", 0x01, 0xe0, 0x00 }, 2590 { "Audio", 0x02, 0xe3, 0x1c }, 2591 { "SDP", 0x04, 0xe6, 0x2a }, 2592 { "Vendor", 0x10, 0xec, 0x54 } 2593 }; 2594 2595 if (!(hdmi_read(sd, 0x05) & 0x80)) { 2596 v4l2_info(sd, "receive DVI-D signal, no infoframes\n"); 2597 return; 2598 } 2599 2600 for (i = 0; i < ARRAY_SIZE(cri); i++) 2601 log_infoframe(sd, &cri[i]); 2602 } 2603 2604 #if 0 2605 /* Let's keep it here for now, as it could be useful for debug */ 2606 static const char * const prim_mode_txt[] = { 2607 "SDP", 2608 "Component", 2609 "Graphics", 2610 "Reserved", 2611 "CVBS & HDMI AUDIO", 2612 "HDMI-Comp", 2613 "HDMI-GR", 2614 "Reserved", 2615 "Reserved", 2616 "Reserved", 2617 "Reserved", 2618 "Reserved", 2619 "Reserved", 2620 "Reserved", 2621 "Reserved", 2622 "Reserved", 2623 }; 2624 #endif 2625 2626 static int adv7842_sdp_log_status(struct v4l2_subdev *sd) 2627 { 2628 /* SDP (Standard definition processor) block */ 2629 u8 sdp_signal_detected = sdp_read(sd, 0x5A) & 0x01; 2630 2631 v4l2_info(sd, "Chip powered %s\n", no_power(sd) ? "off" : "on"); 2632 v4l2_info(sd, "Prim-mode = 0x%x, video std = 0x%x\n", 2633 io_read(sd, 0x01) & 0x0f, io_read(sd, 0x00) & 0x3f); 2634 2635 v4l2_info(sd, "SDP: free run: %s\n", 2636 (sdp_read(sd, 0x56) & 0x01) ? "on" : "off"); 2637 v4l2_info(sd, "SDP: %s\n", sdp_signal_detected ? 2638 "valid SD/PR signal detected" : "invalid/no signal"); 2639 if (sdp_signal_detected) { 2640 static const char * const sdp_std_txt[] = { 2641 "NTSC-M/J", 2642 "1?", 2643 "NTSC-443", 2644 "60HzSECAM", 2645 "PAL-M", 2646 "5?", 2647 "PAL-60", 2648 "7?", "8?", "9?", "a?", "b?", 2649 "PAL-CombN", 2650 "d?", 2651 "PAL-BGHID", 2652 "SECAM" 2653 }; 2654 v4l2_info(sd, "SDP: standard %s\n", 2655 sdp_std_txt[sdp_read(sd, 0x52) & 0x0f]); 2656 v4l2_info(sd, "SDP: %s\n", 2657 (sdp_read(sd, 0x59) & 0x08) ? "50Hz" : "60Hz"); 2658 v4l2_info(sd, "SDP: %s\n", 2659 (sdp_read(sd, 0x57) & 0x08) ? "Interlaced" : "Progressive"); 2660 v4l2_info(sd, "SDP: deinterlacer %s\n", 2661 (sdp_read(sd, 0x12) & 0x08) ? "enabled" : "disabled"); 2662 v4l2_info(sd, "SDP: csc %s mode\n", 2663 (sdp_io_read(sd, 0xe0) & 0x40) ? "auto" : "manual"); 2664 } 2665 return 0; 2666 } 2667 2668 static int adv7842_cp_log_status(struct v4l2_subdev *sd) 2669 { 2670 /* CP block */ 2671 struct adv7842_state *state = to_state(sd); 2672 struct v4l2_dv_timings timings; 2673 u8 reg_io_0x02 = io_read(sd, 0x02); 2674 u8 reg_io_0x21 = io_read(sd, 0x21); 2675 u8 reg_rep_0x77 = rep_read(sd, 0x77); 2676 u8 reg_rep_0x7d = rep_read(sd, 0x7d); 2677 bool audio_pll_locked = hdmi_read(sd, 0x04) & 0x01; 2678 bool audio_sample_packet_detect = hdmi_read(sd, 0x18) & 0x01; 2679 bool audio_mute = io_read(sd, 0x65) & 0x40; 2680 2681 static const char * const csc_coeff_sel_rb[16] = { 2682 "bypassed", "YPbPr601 -> RGB", "reserved", "YPbPr709 -> RGB", 2683 "reserved", "RGB -> YPbPr601", "reserved", "RGB -> YPbPr709", 2684 "reserved", "YPbPr709 -> YPbPr601", "YPbPr601 -> YPbPr709", 2685 "reserved", "reserved", "reserved", "reserved", "manual" 2686 }; 2687 static const char * const input_color_space_txt[16] = { 2688 "RGB limited range (16-235)", "RGB full range (0-255)", 2689 "YCbCr Bt.601 (16-235)", "YCbCr Bt.709 (16-235)", 2690 "xvYCC Bt.601", "xvYCC Bt.709", 2691 "YCbCr Bt.601 (0-255)", "YCbCr Bt.709 (0-255)", 2692 "invalid", "invalid", "invalid", "invalid", "invalid", 2693 "invalid", "invalid", "automatic" 2694 }; 2695 static const char * const rgb_quantization_range_txt[] = { 2696 "Automatic", 2697 "RGB limited range (16-235)", 2698 "RGB full range (0-255)", 2699 }; 2700 static const char * const deep_color_mode_txt[4] = { 2701 "8-bits per channel", 2702 "10-bits per channel", 2703 "12-bits per channel", 2704 "16-bits per channel (not supported)" 2705 }; 2706 2707 v4l2_info(sd, "-----Chip status-----\n"); 2708 v4l2_info(sd, "Chip power: %s\n", no_power(sd) ? "off" : "on"); 2709 v4l2_info(sd, "HDMI/DVI-D port selected: %s\n", 2710 state->hdmi_port_a ? "A" : "B"); 2711 v4l2_info(sd, "EDID A %s, B %s\n", 2712 ((reg_rep_0x7d & 0x04) && (reg_rep_0x77 & 0x04)) ? 2713 "enabled" : "disabled", 2714 ((reg_rep_0x7d & 0x08) && (reg_rep_0x77 & 0x08)) ? 2715 "enabled" : "disabled"); 2716 v4l2_info(sd, "HPD A %s, B %s\n", 2717 reg_io_0x21 & 0x02 ? "enabled" : "disabled", 2718 reg_io_0x21 & 0x01 ? "enabled" : "disabled"); 2719 v4l2_info(sd, "CEC: %s\n", state->cec_enabled_adap ? 2720 "enabled" : "disabled"); 2721 if (state->cec_enabled_adap) { 2722 int i; 2723 2724 for (i = 0; i < ADV7842_MAX_ADDRS; i++) { 2725 bool is_valid = state->cec_valid_addrs & (1 << i); 2726 2727 if (is_valid) 2728 v4l2_info(sd, "CEC Logical Address: 0x%x\n", 2729 state->cec_addr[i]); 2730 } 2731 } 2732 2733 v4l2_info(sd, "-----Signal status-----\n"); 2734 if (state->hdmi_port_a) { 2735 v4l2_info(sd, "Cable detected (+5V power): %s\n", 2736 io_read(sd, 0x6f) & 0x02 ? "true" : "false"); 2737 v4l2_info(sd, "TMDS signal detected: %s\n", 2738 (io_read(sd, 0x6a) & 0x02) ? "true" : "false"); 2739 v4l2_info(sd, "TMDS signal locked: %s\n", 2740 (io_read(sd, 0x6a) & 0x20) ? "true" : "false"); 2741 } else { 2742 v4l2_info(sd, "Cable detected (+5V power):%s\n", 2743 io_read(sd, 0x6f) & 0x01 ? "true" : "false"); 2744 v4l2_info(sd, "TMDS signal detected: %s\n", 2745 (io_read(sd, 0x6a) & 0x01) ? "true" : "false"); 2746 v4l2_info(sd, "TMDS signal locked: %s\n", 2747 (io_read(sd, 0x6a) & 0x10) ? "true" : "false"); 2748 } 2749 v4l2_info(sd, "CP free run: %s\n", 2750 (!!(cp_read(sd, 0xff) & 0x10) ? "on" : "off")); 2751 v4l2_info(sd, "Prim-mode = 0x%x, video std = 0x%x, v_freq = 0x%x\n", 2752 io_read(sd, 0x01) & 0x0f, io_read(sd, 0x00) & 0x3f, 2753 (io_read(sd, 0x01) & 0x70) >> 4); 2754 2755 v4l2_info(sd, "-----Video Timings-----\n"); 2756 if (no_cp_signal(sd)) { 2757 v4l2_info(sd, "STDI: not locked\n"); 2758 } else { 2759 u32 bl = ((cp_read(sd, 0xb1) & 0x3f) << 8) | cp_read(sd, 0xb2); 2760 u32 lcf = ((cp_read(sd, 0xb3) & 0x7) << 8) | cp_read(sd, 0xb4); 2761 u32 lcvs = cp_read(sd, 0xb3) >> 3; 2762 u32 fcl = ((cp_read(sd, 0xb8) & 0x1f) << 8) | cp_read(sd, 0xb9); 2763 char hs_pol = ((cp_read(sd, 0xb5) & 0x10) ? 2764 ((cp_read(sd, 0xb5) & 0x08) ? '+' : '-') : 'x'); 2765 char vs_pol = ((cp_read(sd, 0xb5) & 0x40) ? 2766 ((cp_read(sd, 0xb5) & 0x20) ? '+' : '-') : 'x'); 2767 v4l2_info(sd, 2768 "STDI: lcf (frame height - 1) = %d, bl = %d, lcvs (vsync) = %d, fcl = %d, %s, %chsync, %cvsync\n", 2769 lcf, bl, lcvs, fcl, 2770 (cp_read(sd, 0xb1) & 0x40) ? 2771 "interlaced" : "progressive", 2772 hs_pol, vs_pol); 2773 } 2774 if (adv7842_query_dv_timings(sd, &timings)) 2775 v4l2_info(sd, "No video detected\n"); 2776 else 2777 v4l2_print_dv_timings(sd->name, "Detected format: ", 2778 &timings, true); 2779 v4l2_print_dv_timings(sd->name, "Configured format: ", 2780 &state->timings, true); 2781 2782 if (no_cp_signal(sd)) 2783 return 0; 2784 2785 v4l2_info(sd, "-----Color space-----\n"); 2786 v4l2_info(sd, "RGB quantization range ctrl: %s\n", 2787 rgb_quantization_range_txt[state->rgb_quantization_range]); 2788 v4l2_info(sd, "Input color space: %s\n", 2789 input_color_space_txt[reg_io_0x02 >> 4]); 2790 v4l2_info(sd, "Output color space: %s %s, alt-gamma %s\n", 2791 (reg_io_0x02 & 0x02) ? "RGB" : "YCbCr", 2792 (((reg_io_0x02 >> 2) & 0x01) ^ (reg_io_0x02 & 0x01)) ? 2793 "(16-235)" : "(0-255)", 2794 (reg_io_0x02 & 0x08) ? "enabled" : "disabled"); 2795 v4l2_info(sd, "Color space conversion: %s\n", 2796 csc_coeff_sel_rb[cp_read(sd, 0xf4) >> 4]); 2797 2798 if (!is_digital_input(sd)) 2799 return 0; 2800 2801 v4l2_info(sd, "-----%s status-----\n", is_hdmi(sd) ? "HDMI" : "DVI-D"); 2802 v4l2_info(sd, "HDCP encrypted content: %s\n", 2803 (hdmi_read(sd, 0x05) & 0x40) ? "true" : "false"); 2804 v4l2_info(sd, "HDCP keys read: %s%s\n", 2805 (hdmi_read(sd, 0x04) & 0x20) ? "yes" : "no", 2806 (hdmi_read(sd, 0x04) & 0x10) ? "ERROR" : ""); 2807 if (!is_hdmi(sd)) 2808 return 0; 2809 2810 v4l2_info(sd, "Audio: pll %s, samples %s, %s\n", 2811 audio_pll_locked ? "locked" : "not locked", 2812 audio_sample_packet_detect ? "detected" : "not detected", 2813 audio_mute ? "muted" : "enabled"); 2814 if (audio_pll_locked && audio_sample_packet_detect) { 2815 v4l2_info(sd, "Audio format: %s\n", 2816 (hdmi_read(sd, 0x07) & 0x40) ? "multi-channel" : "stereo"); 2817 } 2818 v4l2_info(sd, "Audio CTS: %u\n", (hdmi_read(sd, 0x5b) << 12) + 2819 (hdmi_read(sd, 0x5c) << 8) + 2820 (hdmi_read(sd, 0x5d) & 0xf0)); 2821 v4l2_info(sd, "Audio N: %u\n", ((hdmi_read(sd, 0x5d) & 0x0f) << 16) + 2822 (hdmi_read(sd, 0x5e) << 8) + 2823 hdmi_read(sd, 0x5f)); 2824 v4l2_info(sd, "AV Mute: %s\n", 2825 (hdmi_read(sd, 0x04) & 0x40) ? "on" : "off"); 2826 v4l2_info(sd, "Deep color mode: %s\n", 2827 deep_color_mode_txt[hdmi_read(sd, 0x0b) >> 6]); 2828 2829 adv7842_log_infoframes(sd); 2830 2831 return 0; 2832 } 2833 2834 static int adv7842_log_status(struct v4l2_subdev *sd) 2835 { 2836 struct adv7842_state *state = to_state(sd); 2837 2838 if (state->mode == ADV7842_MODE_SDP) 2839 return adv7842_sdp_log_status(sd); 2840 return adv7842_cp_log_status(sd); 2841 } 2842 2843 static int adv7842_querystd(struct v4l2_subdev *sd, v4l2_std_id *std) 2844 { 2845 struct adv7842_state *state = to_state(sd); 2846 2847 v4l2_dbg(1, debug, sd, "%s:\n", __func__); 2848 2849 if (state->mode != ADV7842_MODE_SDP) 2850 return -ENODATA; 2851 2852 if (!(sdp_read(sd, 0x5A) & 0x01)) { 2853 *std = 0; 2854 v4l2_dbg(1, debug, sd, "%s: no valid signal\n", __func__); 2855 return 0; 2856 } 2857 2858 switch (sdp_read(sd, 0x52) & 0x0f) { 2859 case 0: 2860 /* NTSC-M/J */ 2861 *std &= V4L2_STD_NTSC; 2862 break; 2863 case 2: 2864 /* NTSC-443 */ 2865 *std &= V4L2_STD_NTSC_443; 2866 break; 2867 case 3: 2868 /* 60HzSECAM */ 2869 *std &= V4L2_STD_SECAM; 2870 break; 2871 case 4: 2872 /* PAL-M */ 2873 *std &= V4L2_STD_PAL_M; 2874 break; 2875 case 6: 2876 /* PAL-60 */ 2877 *std &= V4L2_STD_PAL_60; 2878 break; 2879 case 0xc: 2880 /* PAL-CombN */ 2881 *std &= V4L2_STD_PAL_Nc; 2882 break; 2883 case 0xe: 2884 /* PAL-BGHID */ 2885 *std &= V4L2_STD_PAL; 2886 break; 2887 case 0xf: 2888 /* SECAM */ 2889 *std &= V4L2_STD_SECAM; 2890 break; 2891 default: 2892 *std &= V4L2_STD_ALL; 2893 break; 2894 } 2895 return 0; 2896 } 2897 2898 static void adv7842_s_sdp_io(struct v4l2_subdev *sd, struct adv7842_sdp_io_sync_adjustment *s) 2899 { 2900 if (s && s->adjust) { 2901 sdp_io_write(sd, 0x94, (s->hs_beg >> 8) & 0xf); 2902 sdp_io_write(sd, 0x95, s->hs_beg & 0xff); 2903 sdp_io_write(sd, 0x96, (s->hs_width >> 8) & 0xf); 2904 sdp_io_write(sd, 0x97, s->hs_width & 0xff); 2905 sdp_io_write(sd, 0x98, (s->de_beg >> 8) & 0xf); 2906 sdp_io_write(sd, 0x99, s->de_beg & 0xff); 2907 sdp_io_write(sd, 0x9a, (s->de_end >> 8) & 0xf); 2908 sdp_io_write(sd, 0x9b, s->de_end & 0xff); 2909 sdp_io_write(sd, 0xa8, s->vs_beg_o); 2910 sdp_io_write(sd, 0xa9, s->vs_beg_e); 2911 sdp_io_write(sd, 0xaa, s->vs_end_o); 2912 sdp_io_write(sd, 0xab, s->vs_end_e); 2913 sdp_io_write(sd, 0xac, s->de_v_beg_o); 2914 sdp_io_write(sd, 0xad, s->de_v_beg_e); 2915 sdp_io_write(sd, 0xae, s->de_v_end_o); 2916 sdp_io_write(sd, 0xaf, s->de_v_end_e); 2917 } else { 2918 /* set to default */ 2919 sdp_io_write(sd, 0x94, 0x00); 2920 sdp_io_write(sd, 0x95, 0x00); 2921 sdp_io_write(sd, 0x96, 0x00); 2922 sdp_io_write(sd, 0x97, 0x20); 2923 sdp_io_write(sd, 0x98, 0x00); 2924 sdp_io_write(sd, 0x99, 0x00); 2925 sdp_io_write(sd, 0x9a, 0x00); 2926 sdp_io_write(sd, 0x9b, 0x00); 2927 sdp_io_write(sd, 0xa8, 0x04); 2928 sdp_io_write(sd, 0xa9, 0x04); 2929 sdp_io_write(sd, 0xaa, 0x04); 2930 sdp_io_write(sd, 0xab, 0x04); 2931 sdp_io_write(sd, 0xac, 0x04); 2932 sdp_io_write(sd, 0xad, 0x04); 2933 sdp_io_write(sd, 0xae, 0x04); 2934 sdp_io_write(sd, 0xaf, 0x04); 2935 } 2936 } 2937 2938 static int adv7842_s_std(struct v4l2_subdev *sd, v4l2_std_id norm) 2939 { 2940 struct adv7842_state *state = to_state(sd); 2941 struct adv7842_platform_data *pdata = &state->pdata; 2942 2943 v4l2_dbg(1, debug, sd, "%s:\n", __func__); 2944 2945 if (state->mode != ADV7842_MODE_SDP) 2946 return -ENODATA; 2947 2948 if (norm & V4L2_STD_625_50) 2949 adv7842_s_sdp_io(sd, &pdata->sdp_io_sync_625); 2950 else if (norm & V4L2_STD_525_60) 2951 adv7842_s_sdp_io(sd, &pdata->sdp_io_sync_525); 2952 else 2953 adv7842_s_sdp_io(sd, NULL); 2954 2955 if (norm & V4L2_STD_ALL) { 2956 state->norm = norm; 2957 return 0; 2958 } 2959 return -EINVAL; 2960 } 2961 2962 static int adv7842_g_std(struct v4l2_subdev *sd, v4l2_std_id *norm) 2963 { 2964 struct adv7842_state *state = to_state(sd); 2965 2966 v4l2_dbg(1, debug, sd, "%s:\n", __func__); 2967 2968 if (state->mode != ADV7842_MODE_SDP) 2969 return -ENODATA; 2970 2971 *norm = state->norm; 2972 return 0; 2973 } 2974 2975 /* ----------------------------------------------------------------------- */ 2976 2977 static int adv7842_core_init(struct v4l2_subdev *sd) 2978 { 2979 struct adv7842_state *state = to_state(sd); 2980 struct adv7842_platform_data *pdata = &state->pdata; 2981 hdmi_write(sd, 0x48, 2982 (pdata->disable_pwrdnb ? 0x80 : 0) | 2983 (pdata->disable_cable_det_rst ? 0x40 : 0)); 2984 2985 disable_input(sd); 2986 2987 /* 2988 * Disable I2C access to internal EDID ram from HDMI DDC ports 2989 * Disable auto edid enable when leaving powerdown mode 2990 */ 2991 rep_write_and_or(sd, 0x77, 0xd3, 0x20); 2992 2993 /* power */ 2994 io_write(sd, 0x0c, 0x42); /* Power up part and power down VDP */ 2995 io_write(sd, 0x15, 0x80); /* Power up pads */ 2996 2997 /* video format */ 2998 io_write(sd, 0x02, 0xf0 | pdata->alt_gamma << 3); 2999 io_write_and_or(sd, 0x05, 0xf0, pdata->blank_data << 3 | 3000 pdata->insert_av_codes << 2 | 3001 pdata->replicate_av_codes << 1); 3002 adv7842_setup_format(state); 3003 3004 /* HDMI audio */ 3005 hdmi_write_and_or(sd, 0x1a, 0xf1, 0x08); /* Wait 1 s before unmute */ 3006 3007 /* Drive strength */ 3008 io_write_and_or(sd, 0x14, 0xc0, 3009 pdata->dr_str_data << 4 | 3010 pdata->dr_str_clk << 2 | 3011 pdata->dr_str_sync); 3012 3013 /* HDMI free run */ 3014 cp_write_and_or(sd, 0xba, 0xfc, pdata->hdmi_free_run_enable | 3015 (pdata->hdmi_free_run_mode << 1)); 3016 3017 /* SPD free run */ 3018 sdp_write_and_or(sd, 0xdd, 0xf0, pdata->sdp_free_run_force | 3019 (pdata->sdp_free_run_cbar_en << 1) | 3020 (pdata->sdp_free_run_man_col_en << 2) | 3021 (pdata->sdp_free_run_auto << 3)); 3022 3023 /* TODO from platform data */ 3024 cp_write(sd, 0x69, 0x14); /* Enable CP CSC */ 3025 io_write(sd, 0x06, 0xa6); /* positive VS and HS and DE */ 3026 cp_write(sd, 0xf3, 0xdc); /* Low threshold to enter/exit free run mode */ 3027 afe_write(sd, 0xb5, 0x01); /* Setting MCLK to 256Fs */ 3028 3029 afe_write(sd, 0x02, pdata->ain_sel); /* Select analog input muxing mode */ 3030 io_write_and_or(sd, 0x30, ~(1 << 4), pdata->output_bus_lsb_to_msb << 4); 3031 3032 sdp_csc_coeff(sd, &pdata->sdp_csc_coeff); 3033 3034 /* todo, improve settings for sdram */ 3035 if (pdata->sd_ram_size >= 128) { 3036 sdp_write(sd, 0x12, 0x0d); /* Frame TBC,3D comb enabled */ 3037 if (pdata->sd_ram_ddr) { 3038 /* SDP setup for the AD eval board */ 3039 sdp_io_write(sd, 0x6f, 0x00); /* DDR mode */ 3040 sdp_io_write(sd, 0x75, 0x0a); /* 128 MB memory size */ 3041 sdp_io_write(sd, 0x7a, 0xa5); /* Timing Adjustment */ 3042 sdp_io_write(sd, 0x7b, 0x8f); /* Timing Adjustment */ 3043 sdp_io_write(sd, 0x60, 0x01); /* SDRAM reset */ 3044 } else { 3045 sdp_io_write(sd, 0x75, 0x0a); /* 64 MB memory size ?*/ 3046 sdp_io_write(sd, 0x74, 0x00); /* must be zero for sdr sdram */ 3047 sdp_io_write(sd, 0x79, 0x33); /* CAS latency to 3, 3048 depends on memory */ 3049 sdp_io_write(sd, 0x6f, 0x01); /* SDR mode */ 3050 sdp_io_write(sd, 0x7a, 0xa5); /* Timing Adjustment */ 3051 sdp_io_write(sd, 0x7b, 0x8f); /* Timing Adjustment */ 3052 sdp_io_write(sd, 0x60, 0x01); /* SDRAM reset */ 3053 } 3054 } else { 3055 /* 3056 * Manual UG-214, rev 0 is bit confusing on this bit 3057 * but a '1' disables any signal if the Ram is active. 3058 */ 3059 sdp_io_write(sd, 0x29, 0x10); /* Tristate memory interface */ 3060 } 3061 3062 select_input(sd, pdata->vid_std_select); 3063 3064 enable_input(sd); 3065 3066 if (pdata->hpa_auto) { 3067 /* HPA auto, HPA 0.5s after Edid set and Cable detect */ 3068 hdmi_write(sd, 0x69, 0x5c); 3069 } else { 3070 /* HPA manual */ 3071 hdmi_write(sd, 0x69, 0xa3); 3072 /* HPA disable on port A and B */ 3073 io_write_and_or(sd, 0x20, 0xcf, 0x00); 3074 } 3075 3076 /* LLC */ 3077 io_write(sd, 0x19, 0x80 | pdata->llc_dll_phase); 3078 io_write(sd, 0x33, 0x40); 3079 3080 /* interrupts */ 3081 io_write(sd, 0x40, 0xf2); /* Configure INT1 */ 3082 3083 adv7842_irq_enable(sd, true); 3084 3085 return v4l2_ctrl_handler_setup(sd->ctrl_handler); 3086 } 3087 3088 /* ----------------------------------------------------------------------- */ 3089 3090 static int adv7842_ddr_ram_test(struct v4l2_subdev *sd) 3091 { 3092 /* 3093 * From ADV784x external Memory test.pdf 3094 * 3095 * Reset must just been performed before running test. 3096 * Recommended to reset after test. 3097 */ 3098 int i; 3099 int pass = 0; 3100 int fail = 0; 3101 int complete = 0; 3102 3103 io_write(sd, 0x00, 0x01); /* Program SDP 4x1 */ 3104 io_write(sd, 0x01, 0x00); /* Program SDP mode */ 3105 afe_write(sd, 0x80, 0x92); /* SDP Recommended Write */ 3106 afe_write(sd, 0x9B, 0x01); /* SDP Recommended Write ADV7844ES1 */ 3107 afe_write(sd, 0x9C, 0x60); /* SDP Recommended Write ADV7844ES1 */ 3108 afe_write(sd, 0x9E, 0x02); /* SDP Recommended Write ADV7844ES1 */ 3109 afe_write(sd, 0xA0, 0x0B); /* SDP Recommended Write ADV7844ES1 */ 3110 afe_write(sd, 0xC3, 0x02); /* Memory BIST Initialisation */ 3111 io_write(sd, 0x0C, 0x40); /* Power up ADV7844 */ 3112 io_write(sd, 0x15, 0xBA); /* Enable outputs */ 3113 sdp_write(sd, 0x12, 0x00); /* Disable 3D comb, Frame TBC & 3DNR */ 3114 io_write(sd, 0xFF, 0x04); /* Reset memory controller */ 3115 3116 usleep_range(5000, 6000); 3117 3118 sdp_write(sd, 0x12, 0x00); /* Disable 3D Comb, Frame TBC & 3DNR */ 3119 sdp_io_write(sd, 0x2A, 0x01); /* Memory BIST Initialisation */ 3120 sdp_io_write(sd, 0x7c, 0x19); /* Memory BIST Initialisation */ 3121 sdp_io_write(sd, 0x80, 0x87); /* Memory BIST Initialisation */ 3122 sdp_io_write(sd, 0x81, 0x4a); /* Memory BIST Initialisation */ 3123 sdp_io_write(sd, 0x82, 0x2c); /* Memory BIST Initialisation */ 3124 sdp_io_write(sd, 0x83, 0x0e); /* Memory BIST Initialisation */ 3125 sdp_io_write(sd, 0x84, 0x94); /* Memory BIST Initialisation */ 3126 sdp_io_write(sd, 0x85, 0x62); /* Memory BIST Initialisation */ 3127 sdp_io_write(sd, 0x7d, 0x00); /* Memory BIST Initialisation */ 3128 sdp_io_write(sd, 0x7e, 0x1a); /* Memory BIST Initialisation */ 3129 3130 usleep_range(5000, 6000); 3131 3132 sdp_io_write(sd, 0xd9, 0xd5); /* Enable BIST Test */ 3133 sdp_write(sd, 0x12, 0x05); /* Enable FRAME TBC & 3D COMB */ 3134 3135 msleep(20); 3136 3137 for (i = 0; i < 10; i++) { 3138 u8 result = sdp_io_read(sd, 0xdb); 3139 if (result & 0x10) { 3140 complete++; 3141 if (result & 0x20) 3142 fail++; 3143 else 3144 pass++; 3145 } 3146 msleep(20); 3147 } 3148 3149 v4l2_dbg(1, debug, sd, 3150 "Ram Test: completed %d of %d: pass %d, fail %d\n", 3151 complete, i, pass, fail); 3152 3153 if (!complete || fail) 3154 return -EIO; 3155 return 0; 3156 } 3157 3158 static void adv7842_rewrite_i2c_addresses(struct v4l2_subdev *sd, 3159 struct adv7842_platform_data *pdata) 3160 { 3161 io_write(sd, 0xf1, pdata->i2c_sdp << 1); 3162 io_write(sd, 0xf2, pdata->i2c_sdp_io << 1); 3163 io_write(sd, 0xf3, pdata->i2c_avlink << 1); 3164 io_write(sd, 0xf4, pdata->i2c_cec << 1); 3165 io_write(sd, 0xf5, pdata->i2c_infoframe << 1); 3166 3167 io_write(sd, 0xf8, pdata->i2c_afe << 1); 3168 io_write(sd, 0xf9, pdata->i2c_repeater << 1); 3169 io_write(sd, 0xfa, pdata->i2c_edid << 1); 3170 io_write(sd, 0xfb, pdata->i2c_hdmi << 1); 3171 3172 io_write(sd, 0xfd, pdata->i2c_cp << 1); 3173 io_write(sd, 0xfe, pdata->i2c_vdp << 1); 3174 } 3175 3176 static int adv7842_command_ram_test(struct v4l2_subdev *sd) 3177 { 3178 struct i2c_client *client = v4l2_get_subdevdata(sd); 3179 struct adv7842_state *state = to_state(sd); 3180 struct adv7842_platform_data *pdata = client->dev.platform_data; 3181 struct v4l2_dv_timings timings; 3182 int ret = 0; 3183 3184 if (!pdata) 3185 return -ENODEV; 3186 3187 if (!pdata->sd_ram_size || !pdata->sd_ram_ddr) { 3188 v4l2_info(sd, "no sdram or no ddr sdram\n"); 3189 return -EINVAL; 3190 } 3191 3192 main_reset(sd); 3193 3194 adv7842_rewrite_i2c_addresses(sd, pdata); 3195 3196 /* run ram test */ 3197 ret = adv7842_ddr_ram_test(sd); 3198 3199 main_reset(sd); 3200 3201 adv7842_rewrite_i2c_addresses(sd, pdata); 3202 3203 /* and re-init chip and state */ 3204 adv7842_core_init(sd); 3205 3206 disable_input(sd); 3207 3208 select_input(sd, state->vid_std_select); 3209 3210 enable_input(sd); 3211 3212 edid_write_vga_segment(sd); 3213 edid_write_hdmi_segment(sd, ADV7842_EDID_PORT_A); 3214 edid_write_hdmi_segment(sd, ADV7842_EDID_PORT_B); 3215 3216 timings = state->timings; 3217 3218 memset(&state->timings, 0, sizeof(struct v4l2_dv_timings)); 3219 3220 adv7842_s_dv_timings(sd, &timings); 3221 3222 return ret; 3223 } 3224 3225 static long adv7842_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg) 3226 { 3227 switch (cmd) { 3228 case ADV7842_CMD_RAM_TEST: 3229 return adv7842_command_ram_test(sd); 3230 } 3231 return -ENOTTY; 3232 } 3233 3234 static int adv7842_subscribe_event(struct v4l2_subdev *sd, 3235 struct v4l2_fh *fh, 3236 struct v4l2_event_subscription *sub) 3237 { 3238 switch (sub->type) { 3239 case V4L2_EVENT_SOURCE_CHANGE: 3240 return v4l2_src_change_event_subdev_subscribe(sd, fh, sub); 3241 case V4L2_EVENT_CTRL: 3242 return v4l2_ctrl_subdev_subscribe_event(sd, fh, sub); 3243 default: 3244 return -EINVAL; 3245 } 3246 } 3247 3248 static int adv7842_registered(struct v4l2_subdev *sd) 3249 { 3250 struct adv7842_state *state = to_state(sd); 3251 struct i2c_client *client = v4l2_get_subdevdata(sd); 3252 int err; 3253 3254 err = cec_register_adapter(state->cec_adap, &client->dev); 3255 if (err) 3256 cec_delete_adapter(state->cec_adap); 3257 return err; 3258 } 3259 3260 static void adv7842_unregistered(struct v4l2_subdev *sd) 3261 { 3262 struct adv7842_state *state = to_state(sd); 3263 3264 cec_unregister_adapter(state->cec_adap); 3265 } 3266 3267 /* ----------------------------------------------------------------------- */ 3268 3269 static const struct v4l2_ctrl_ops adv7842_ctrl_ops = { 3270 .s_ctrl = adv7842_s_ctrl, 3271 .g_volatile_ctrl = adv7842_g_volatile_ctrl, 3272 }; 3273 3274 static const struct v4l2_subdev_core_ops adv7842_core_ops = { 3275 .log_status = adv7842_log_status, 3276 .ioctl = adv7842_ioctl, 3277 .interrupt_service_routine = adv7842_isr, 3278 .subscribe_event = adv7842_subscribe_event, 3279 .unsubscribe_event = v4l2_event_subdev_unsubscribe, 3280 #ifdef CONFIG_VIDEO_ADV_DEBUG 3281 .g_register = adv7842_g_register, 3282 .s_register = adv7842_s_register, 3283 #endif 3284 }; 3285 3286 static const struct v4l2_subdev_video_ops adv7842_video_ops = { 3287 .g_std = adv7842_g_std, 3288 .s_std = adv7842_s_std, 3289 .s_routing = adv7842_s_routing, 3290 .querystd = adv7842_querystd, 3291 .g_input_status = adv7842_g_input_status, 3292 .s_dv_timings = adv7842_s_dv_timings, 3293 .g_dv_timings = adv7842_g_dv_timings, 3294 .query_dv_timings = adv7842_query_dv_timings, 3295 }; 3296 3297 static const struct v4l2_subdev_pad_ops adv7842_pad_ops = { 3298 .enum_mbus_code = adv7842_enum_mbus_code, 3299 .get_fmt = adv7842_get_format, 3300 .set_fmt = adv7842_set_format, 3301 .get_edid = adv7842_get_edid, 3302 .set_edid = adv7842_set_edid, 3303 .enum_dv_timings = adv7842_enum_dv_timings, 3304 .dv_timings_cap = adv7842_dv_timings_cap, 3305 }; 3306 3307 static const struct v4l2_subdev_ops adv7842_ops = { 3308 .core = &adv7842_core_ops, 3309 .video = &adv7842_video_ops, 3310 .pad = &adv7842_pad_ops, 3311 }; 3312 3313 static const struct v4l2_subdev_internal_ops adv7842_int_ops = { 3314 .registered = adv7842_registered, 3315 .unregistered = adv7842_unregistered, 3316 }; 3317 3318 /* -------------------------- custom ctrls ---------------------------------- */ 3319 3320 static const struct v4l2_ctrl_config adv7842_ctrl_analog_sampling_phase = { 3321 .ops = &adv7842_ctrl_ops, 3322 .id = V4L2_CID_ADV_RX_ANALOG_SAMPLING_PHASE, 3323 .name = "Analog Sampling Phase", 3324 .type = V4L2_CTRL_TYPE_INTEGER, 3325 .min = 0, 3326 .max = 0x1f, 3327 .step = 1, 3328 .def = 0, 3329 }; 3330 3331 static const struct v4l2_ctrl_config adv7842_ctrl_free_run_color_manual = { 3332 .ops = &adv7842_ctrl_ops, 3333 .id = V4L2_CID_ADV_RX_FREE_RUN_COLOR_MANUAL, 3334 .name = "Free Running Color, Manual", 3335 .type = V4L2_CTRL_TYPE_BOOLEAN, 3336 .max = 1, 3337 .step = 1, 3338 .def = 1, 3339 }; 3340 3341 static const struct v4l2_ctrl_config adv7842_ctrl_free_run_color = { 3342 .ops = &adv7842_ctrl_ops, 3343 .id = V4L2_CID_ADV_RX_FREE_RUN_COLOR, 3344 .name = "Free Running Color", 3345 .type = V4L2_CTRL_TYPE_INTEGER, 3346 .max = 0xffffff, 3347 .step = 0x1, 3348 }; 3349 3350 3351 static void adv7842_unregister_clients(struct v4l2_subdev *sd) 3352 { 3353 struct adv7842_state *state = to_state(sd); 3354 i2c_unregister_device(state->i2c_avlink); 3355 i2c_unregister_device(state->i2c_cec); 3356 i2c_unregister_device(state->i2c_infoframe); 3357 i2c_unregister_device(state->i2c_sdp_io); 3358 i2c_unregister_device(state->i2c_sdp); 3359 i2c_unregister_device(state->i2c_afe); 3360 i2c_unregister_device(state->i2c_repeater); 3361 i2c_unregister_device(state->i2c_edid); 3362 i2c_unregister_device(state->i2c_hdmi); 3363 i2c_unregister_device(state->i2c_cp); 3364 i2c_unregister_device(state->i2c_vdp); 3365 3366 state->i2c_avlink = NULL; 3367 state->i2c_cec = NULL; 3368 state->i2c_infoframe = NULL; 3369 state->i2c_sdp_io = NULL; 3370 state->i2c_sdp = NULL; 3371 state->i2c_afe = NULL; 3372 state->i2c_repeater = NULL; 3373 state->i2c_edid = NULL; 3374 state->i2c_hdmi = NULL; 3375 state->i2c_cp = NULL; 3376 state->i2c_vdp = NULL; 3377 } 3378 3379 static struct i2c_client *adv7842_dummy_client(struct v4l2_subdev *sd, const char *desc, 3380 u8 addr, u8 io_reg) 3381 { 3382 struct i2c_client *client = v4l2_get_subdevdata(sd); 3383 struct i2c_client *cp; 3384 3385 io_write(sd, io_reg, addr << 1); 3386 3387 if (addr == 0) { 3388 v4l2_err(sd, "no %s i2c addr configured\n", desc); 3389 return NULL; 3390 } 3391 3392 cp = i2c_new_dummy_device(client->adapter, io_read(sd, io_reg) >> 1); 3393 if (IS_ERR(cp)) { 3394 v4l2_err(sd, "register %s on i2c addr 0x%x failed with %ld\n", 3395 desc, addr, PTR_ERR(cp)); 3396 cp = NULL; 3397 } 3398 3399 return cp; 3400 } 3401 3402 static int adv7842_register_clients(struct v4l2_subdev *sd) 3403 { 3404 struct adv7842_state *state = to_state(sd); 3405 struct adv7842_platform_data *pdata = &state->pdata; 3406 3407 state->i2c_avlink = adv7842_dummy_client(sd, "avlink", pdata->i2c_avlink, 0xf3); 3408 state->i2c_cec = adv7842_dummy_client(sd, "cec", pdata->i2c_cec, 0xf4); 3409 state->i2c_infoframe = adv7842_dummy_client(sd, "infoframe", pdata->i2c_infoframe, 0xf5); 3410 state->i2c_sdp_io = adv7842_dummy_client(sd, "sdp_io", pdata->i2c_sdp_io, 0xf2); 3411 state->i2c_sdp = adv7842_dummy_client(sd, "sdp", pdata->i2c_sdp, 0xf1); 3412 state->i2c_afe = adv7842_dummy_client(sd, "afe", pdata->i2c_afe, 0xf8); 3413 state->i2c_repeater = adv7842_dummy_client(sd, "repeater", pdata->i2c_repeater, 0xf9); 3414 state->i2c_edid = adv7842_dummy_client(sd, "edid", pdata->i2c_edid, 0xfa); 3415 state->i2c_hdmi = adv7842_dummy_client(sd, "hdmi", pdata->i2c_hdmi, 0xfb); 3416 state->i2c_cp = adv7842_dummy_client(sd, "cp", pdata->i2c_cp, 0xfd); 3417 state->i2c_vdp = adv7842_dummy_client(sd, "vdp", pdata->i2c_vdp, 0xfe); 3418 3419 if (!state->i2c_avlink || 3420 !state->i2c_cec || 3421 !state->i2c_infoframe || 3422 !state->i2c_sdp_io || 3423 !state->i2c_sdp || 3424 !state->i2c_afe || 3425 !state->i2c_repeater || 3426 !state->i2c_edid || 3427 !state->i2c_hdmi || 3428 !state->i2c_cp || 3429 !state->i2c_vdp) 3430 return -1; 3431 3432 return 0; 3433 } 3434 3435 static int adv7842_probe(struct i2c_client *client, 3436 const struct i2c_device_id *id) 3437 { 3438 struct adv7842_state *state; 3439 static const struct v4l2_dv_timings cea640x480 = 3440 V4L2_DV_BT_CEA_640X480P59_94; 3441 struct adv7842_platform_data *pdata = client->dev.platform_data; 3442 struct v4l2_ctrl_handler *hdl; 3443 struct v4l2_ctrl *ctrl; 3444 struct v4l2_subdev *sd; 3445 u16 rev; 3446 int err; 3447 3448 /* Check if the adapter supports the needed features */ 3449 if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) 3450 return -EIO; 3451 3452 v4l_dbg(1, debug, client, "detecting adv7842 client on address 0x%x\n", 3453 client->addr << 1); 3454 3455 if (!pdata) { 3456 v4l_err(client, "No platform data!\n"); 3457 return -ENODEV; 3458 } 3459 3460 state = devm_kzalloc(&client->dev, sizeof(*state), GFP_KERNEL); 3461 if (!state) 3462 return -ENOMEM; 3463 3464 /* platform data */ 3465 state->pdata = *pdata; 3466 state->timings = cea640x480; 3467 state->format = adv7842_format_info(state, MEDIA_BUS_FMT_YUYV8_2X8); 3468 3469 sd = &state->sd; 3470 v4l2_i2c_subdev_init(sd, client, &adv7842_ops); 3471 sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE | V4L2_SUBDEV_FL_HAS_EVENTS; 3472 sd->internal_ops = &adv7842_int_ops; 3473 state->mode = pdata->mode; 3474 3475 state->hdmi_port_a = pdata->input == ADV7842_SELECT_HDMI_PORT_A; 3476 state->restart_stdi_once = true; 3477 3478 /* i2c access to adv7842? */ 3479 rev = adv_smbus_read_byte_data_check(client, 0xea, false) << 8 | 3480 adv_smbus_read_byte_data_check(client, 0xeb, false); 3481 if (rev != 0x2012) { 3482 v4l2_info(sd, "got rev=0x%04x on first read attempt\n", rev); 3483 rev = adv_smbus_read_byte_data_check(client, 0xea, false) << 8 | 3484 adv_smbus_read_byte_data_check(client, 0xeb, false); 3485 } 3486 if (rev != 0x2012) { 3487 v4l2_info(sd, "not an adv7842 on address 0x%x (rev=0x%04x)\n", 3488 client->addr << 1, rev); 3489 return -ENODEV; 3490 } 3491 3492 if (pdata->chip_reset) 3493 main_reset(sd); 3494 3495 /* control handlers */ 3496 hdl = &state->hdl; 3497 v4l2_ctrl_handler_init(hdl, 6); 3498 3499 /* add in ascending ID order */ 3500 v4l2_ctrl_new_std(hdl, &adv7842_ctrl_ops, 3501 V4L2_CID_BRIGHTNESS, -128, 127, 1, 0); 3502 v4l2_ctrl_new_std(hdl, &adv7842_ctrl_ops, 3503 V4L2_CID_CONTRAST, 0, 255, 1, 128); 3504 v4l2_ctrl_new_std(hdl, &adv7842_ctrl_ops, 3505 V4L2_CID_SATURATION, 0, 255, 1, 128); 3506 v4l2_ctrl_new_std(hdl, &adv7842_ctrl_ops, 3507 V4L2_CID_HUE, 0, 128, 1, 0); 3508 ctrl = v4l2_ctrl_new_std_menu(hdl, &adv7842_ctrl_ops, 3509 V4L2_CID_DV_RX_IT_CONTENT_TYPE, V4L2_DV_IT_CONTENT_TYPE_NO_ITC, 3510 0, V4L2_DV_IT_CONTENT_TYPE_NO_ITC); 3511 if (ctrl) 3512 ctrl->flags |= V4L2_CTRL_FLAG_VOLATILE; 3513 3514 /* custom controls */ 3515 state->detect_tx_5v_ctrl = v4l2_ctrl_new_std(hdl, NULL, 3516 V4L2_CID_DV_RX_POWER_PRESENT, 0, 3, 0, 0); 3517 state->analog_sampling_phase_ctrl = v4l2_ctrl_new_custom(hdl, 3518 &adv7842_ctrl_analog_sampling_phase, NULL); 3519 state->free_run_color_ctrl_manual = v4l2_ctrl_new_custom(hdl, 3520 &adv7842_ctrl_free_run_color_manual, NULL); 3521 state->free_run_color_ctrl = v4l2_ctrl_new_custom(hdl, 3522 &adv7842_ctrl_free_run_color, NULL); 3523 state->rgb_quantization_range_ctrl = 3524 v4l2_ctrl_new_std_menu(hdl, &adv7842_ctrl_ops, 3525 V4L2_CID_DV_RX_RGB_RANGE, V4L2_DV_RGB_RANGE_FULL, 3526 0, V4L2_DV_RGB_RANGE_AUTO); 3527 sd->ctrl_handler = hdl; 3528 if (hdl->error) { 3529 err = hdl->error; 3530 goto err_hdl; 3531 } 3532 if (adv7842_s_detect_tx_5v_ctrl(sd)) { 3533 err = -ENODEV; 3534 goto err_hdl; 3535 } 3536 3537 if (adv7842_register_clients(sd) < 0) { 3538 err = -ENOMEM; 3539 v4l2_err(sd, "failed to create all i2c clients\n"); 3540 goto err_i2c; 3541 } 3542 3543 3544 INIT_DELAYED_WORK(&state->delayed_work_enable_hotplug, 3545 adv7842_delayed_work_enable_hotplug); 3546 3547 sd->entity.function = MEDIA_ENT_F_DV_DECODER; 3548 state->pad.flags = MEDIA_PAD_FL_SOURCE; 3549 err = media_entity_pads_init(&sd->entity, 1, &state->pad); 3550 if (err) 3551 goto err_work_queues; 3552 3553 err = adv7842_core_init(sd); 3554 if (err) 3555 goto err_entity; 3556 3557 #if IS_ENABLED(CONFIG_VIDEO_ADV7842_CEC) 3558 state->cec_adap = cec_allocate_adapter(&adv7842_cec_adap_ops, 3559 state, dev_name(&client->dev), 3560 CEC_CAP_DEFAULTS, ADV7842_MAX_ADDRS); 3561 err = PTR_ERR_OR_ZERO(state->cec_adap); 3562 if (err) 3563 goto err_entity; 3564 #endif 3565 3566 v4l2_info(sd, "%s found @ 0x%x (%s)\n", client->name, 3567 client->addr << 1, client->adapter->name); 3568 return 0; 3569 3570 err_entity: 3571 media_entity_cleanup(&sd->entity); 3572 err_work_queues: 3573 cancel_delayed_work(&state->delayed_work_enable_hotplug); 3574 err_i2c: 3575 adv7842_unregister_clients(sd); 3576 err_hdl: 3577 v4l2_ctrl_handler_free(hdl); 3578 return err; 3579 } 3580 3581 /* ----------------------------------------------------------------------- */ 3582 3583 static int adv7842_remove(struct i2c_client *client) 3584 { 3585 struct v4l2_subdev *sd = i2c_get_clientdata(client); 3586 struct adv7842_state *state = to_state(sd); 3587 3588 adv7842_irq_enable(sd, false); 3589 cancel_delayed_work(&state->delayed_work_enable_hotplug); 3590 v4l2_device_unregister_subdev(sd); 3591 media_entity_cleanup(&sd->entity); 3592 adv7842_unregister_clients(sd); 3593 v4l2_ctrl_handler_free(sd->ctrl_handler); 3594 return 0; 3595 } 3596 3597 /* ----------------------------------------------------------------------- */ 3598 3599 static const struct i2c_device_id adv7842_id[] = { 3600 { "adv7842", 0 }, 3601 { } 3602 }; 3603 MODULE_DEVICE_TABLE(i2c, adv7842_id); 3604 3605 /* ----------------------------------------------------------------------- */ 3606 3607 static struct i2c_driver adv7842_driver = { 3608 .driver = { 3609 .name = "adv7842", 3610 }, 3611 .probe = adv7842_probe, 3612 .remove = adv7842_remove, 3613 .id_table = adv7842_id, 3614 }; 3615 3616 module_i2c_driver(adv7842_driver); 3617