drivers/media/i2c/adv748x/adv748x.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /*
   3  * Driver for Analog Devices ADV748X video decoder and HDMI receiver
   4  *
   5  * Copyright (C) 2017 Renesas Electronics Corp.
   6  *
   7  * Authors:
   8  *      Koji Matsuoka <koji.matsuoka.xm@renesas.com>
   9  *      Niklas Söderlund <niklas.soderlund@ragnatech.se>
  10  *      Kieran Bingham <kieran.bingham@ideasonboard.com>
  11  *
  12  * The ADV748x range of receivers have the following configurations:
  13  *
  14  *                  Analog   HDMI  MHL  4-Lane  1-Lane
  15  *                    In      In         CSI     CSI
  16  *       ADV7480               X    X     X
  17  *       ADV7481      X        X    X     X       X
  18  *       ADV7482      X        X          X       X
  19  */
  20
  21 #include <linux/i2c.h>
  22
  23 #ifndef _ADV748X_H_
  24 #define _ADV748X_H_
  25
  26 enum adv748x_page {
  27         ADV748X_PAGE_IO,
  28         ADV748X_PAGE_DPLL,
  29         ADV748X_PAGE_CP,
  30         ADV748X_PAGE_HDMI,
  31         ADV748X_PAGE_EDID,
  32         ADV748X_PAGE_REPEATER,
  33         ADV748X_PAGE_INFOFRAME,
  34         ADV748X_PAGE_CBUS,
  35         ADV748X_PAGE_CEC,
  36         ADV748X_PAGE_SDP,
  37         ADV748X_PAGE_TXB,
  38         ADV748X_PAGE_TXA,
  39         ADV748X_PAGE_MAX,
  40
  41         /* Fake pages for register sequences */
  42         ADV748X_PAGE_EOR,               /* End Mark */
  43 };
  44
  45 /**
  46  * enum adv748x_ports - Device tree port number definitions
  47  *
  48  * The ADV748X ports define the mapping between subdevices
  49  * and the device tree specification
  50  */
  51 enum adv748x_ports {
  52         ADV748X_PORT_AIN0 = 0,
  53         ADV748X_PORT_AIN1 = 1,
  54         ADV748X_PORT_AIN2 = 2,
  55         ADV748X_PORT_AIN3 = 3,
  56         ADV748X_PORT_AIN4 = 4,
  57         ADV748X_PORT_AIN5 = 5,
  58         ADV748X_PORT_AIN6 = 6,
  59         ADV748X_PORT_AIN7 = 7,
  60         ADV748X_PORT_HDMI = 8,
  61         ADV748X_PORT_TTL = 9,
  62         ADV748X_PORT_TXA = 10,
  63         ADV748X_PORT_TXB = 11,
  64         ADV748X_PORT_MAX = 12,
  65 };
  66
  67 enum adv748x_csi2_pads {
  68         ADV748X_CSI2_SINK,
  69         ADV748X_CSI2_SOURCE,
  70         ADV748X_CSI2_NR_PADS,
  71 };
  72
  73 /* CSI2 transmitters can have 2 internal connections, HDMI/AFE */
  74 #define ADV748X_CSI2_MAX_SUBDEVS 2
  75
  76 struct adv748x_csi2 {
  77         struct adv748x_state *state;
  78         struct v4l2_mbus_framefmt format;
  79         unsigned int page;
  80         unsigned int port;
  81         unsigned int num_lanes;
  82
  83         struct media_pad pads[ADV748X_CSI2_NR_PADS];
  84         struct v4l2_ctrl_handler ctrl_hdl;
  85         struct v4l2_ctrl *pixel_rate;
  86         struct v4l2_subdev *src;
  87         struct v4l2_subdev sd;
  88 };
  89
  90 #define notifier_to_csi2(n) container_of(n, struct adv748x_csi2, notifier)
  91 #define adv748x_sd_to_csi2(sd) container_of(sd, struct adv748x_csi2, sd)
  92
  93 #define is_tx_enabled(_tx) ((_tx)->state->endpoints[(_tx)->port] != NULL)
  94 #define is_txa(_tx) ((_tx) == &(_tx)->state->txa)
  95 #define is_txb(_tx) ((_tx) == &(_tx)->state->txb)
  96 #define is_tx(_tx) (is_txa(_tx) || is_txb(_tx))
  97
  98 #define is_afe_enabled(_state)                                  \
  99         ((_state)->endpoints[ADV748X_PORT_AIN0] != NULL ||      \
 100          (_state)->endpoints[ADV748X_PORT_AIN1] != NULL ||      \
 101          (_state)->endpoints[ADV748X_PORT_AIN2] != NULL ||      \
 102          (_state)->endpoints[ADV748X_PORT_AIN3] != NULL ||      \
 103          (_state)->endpoints[ADV748X_PORT_AIN4] != NULL ||      \
 104          (_state)->endpoints[ADV748X_PORT_AIN5] != NULL ||      \
 105          (_state)->endpoints[ADV748X_PORT_AIN6] != NULL ||      \
 106          (_state)->endpoints[ADV748X_PORT_AIN7] != NULL)
 107 #define is_hdmi_enabled(_state) ((_state)->endpoints[ADV748X_PORT_HDMI] != NULL)
 108
 109 enum adv748x_hdmi_pads {
 110         ADV748X_HDMI_SINK,
 111         ADV748X_HDMI_SOURCE,
 112         ADV748X_HDMI_NR_PADS,
 113 };
 114
 115 struct adv748x_hdmi {
 116         struct media_pad pads[ADV748X_HDMI_NR_PADS];
 117         struct v4l2_ctrl_handler ctrl_hdl;
 118         struct v4l2_subdev sd;
 119         struct v4l2_mbus_framefmt format;
 120
 121         struct v4l2_dv_timings timings;
 122         struct v4l2_fract aspect_ratio;
 123
 124         struct adv748x_csi2 *tx;
 125
 126         struct {
 127                 u8 edid[512];
 128                 u32 present;
 129                 unsigned int blocks;
 130         } edid;
 131 };
 132
 133 #define adv748x_ctrl_to_hdmi(ctrl) \
 134         container_of(ctrl->handler, struct adv748x_hdmi, ctrl_hdl)
 135 #define adv748x_sd_to_hdmi(sd) container_of(sd, struct adv748x_hdmi, sd)
 136
 137 enum adv748x_afe_pads {
 138         ADV748X_AFE_SINK_AIN0,
 139         ADV748X_AFE_SINK_AIN1,
 140         ADV748X_AFE_SINK_AIN2,
 141         ADV748X_AFE_SINK_AIN3,
 142         ADV748X_AFE_SINK_AIN4,
 143         ADV748X_AFE_SINK_AIN5,
 144         ADV748X_AFE_SINK_AIN6,
 145         ADV748X_AFE_SINK_AIN7,
 146         ADV748X_AFE_SOURCE,
 147         ADV748X_AFE_NR_PADS,
 148 };
 149
 150 struct adv748x_afe {
 151         struct media_pad pads[ADV748X_AFE_NR_PADS];
 152         struct v4l2_ctrl_handler ctrl_hdl;
 153         struct v4l2_subdev sd;
 154         struct v4l2_mbus_framefmt format;
 155
 156         struct adv748x_csi2 *tx;
 157
 158         bool streaming;
 159         v4l2_std_id curr_norm;
 160         unsigned int input;
 161 };
 162
 163 #define adv748x_ctrl_to_afe(ctrl) \
 164         container_of(ctrl->handler, struct adv748x_afe, ctrl_hdl)
 165 #define adv748x_sd_to_afe(sd) container_of(sd, struct adv748x_afe, sd)
 166
 167 /**
 168  * struct adv748x_state - State of ADV748X
 169  * @dev:                (OF) device
 170  * @client:             I2C client
 171  * @mutex:              protect global state
 172  *
 173  * @endpoints:          parsed device node endpoints for each port
 174  *
 175  * @i2c_addresses       I2C Page addresses
 176  * @i2c_clients         I2C clients for the page accesses
 177  * @regmap              regmap configuration pages.
 178  *
 179  * @hdmi:               state of HDMI receiver context
 180  * @afe:                state of AFE receiver context
 181  * @txa:                state of TXA transmitter context
 182  * @txb:                state of TXB transmitter context
 183  */
 184 struct adv748x_state {
 185         struct device *dev;
 186         struct i2c_client *client;
 187         struct mutex mutex;
 188
 189         struct device_node *endpoints[ADV748X_PORT_MAX];
 190
 191         struct i2c_client *i2c_clients[ADV748X_PAGE_MAX];
 192         struct regmap *regmap[ADV748X_PAGE_MAX];
 193
 194         struct adv748x_hdmi hdmi;
 195         struct adv748x_afe afe;
 196         struct adv748x_csi2 txa;
 197         struct adv748x_csi2 txb;
 198 };
 199
 200 #define adv748x_hdmi_to_state(h) container_of(h, struct adv748x_state, hdmi)
 201 #define adv748x_afe_to_state(a) container_of(a, struct adv748x_state, afe)
 202
 203 #define adv_err(a, fmt, arg...) dev_err(a->dev, fmt, ##arg)
 204 #define adv_info(a, fmt, arg...) dev_info(a->dev, fmt, ##arg)
 205 #define adv_dbg(a, fmt, arg...) dev_dbg(a->dev, fmt, ##arg)
 206
 207 /* Register Mappings */
 208
 209 /* IO Map */
 210 #define ADV748X_IO_PD                   0x00    /* power down controls */
 211 #define ADV748X_IO_PD_RX_EN             BIT(6)
 212
 213 #define ADV748X_IO_REG_01               0x01    /* pwrdn{2}b, prog_xtal_freq */
 214 #define ADV748X_IO_REG_01_PWRDN_MASK    (BIT(7) | BIT(6))
 215 #define ADV748X_IO_REG_01_PWRDN2B       BIT(7)  /* CEC Wakeup Support */
 216 #define ADV748X_IO_REG_01_PWRDNB        BIT(6)  /* CEC Wakeup Support */
 217
 218 #define ADV748X_IO_REG_04               0x04
 219 #define ADV748X_IO_REG_04_FORCE_FR      BIT(0)  /* Force CP free-run */
 220
 221 #define ADV748X_IO_DATAPATH             0x03    /* datapath cntrl */
 222 #define ADV748X_IO_DATAPATH_VFREQ_M     0x70
 223 #define ADV748X_IO_DATAPATH_VFREQ_SHIFT 4
 224
 225 #define ADV748X_IO_VID_STD              0x05
 226
 227 #define ADV748X_IO_10                   0x10    /* io_reg_10 */
 228 #define ADV748X_IO_10_CSI4_EN           BIT(7)
 229 #define ADV748X_IO_10_CSI1_EN           BIT(6)
 230 #define ADV748X_IO_10_PIX_OUT_EN        BIT(5)
 231 #define ADV748X_IO_10_CSI4_IN_SEL_AFE   BIT(3)
 232
 233 #define ADV748X_IO_CHIP_REV_ID_1        0xdf
 234 #define ADV748X_IO_CHIP_REV_ID_2        0xe0
 235
 236 #define ADV748X_IO_REG_F2               0xf2
 237 #define ADV748X_IO_REG_F2_READ_AUTO_INC BIT(0)
 238
 239 /* For PAGE slave address offsets */
 240 #define ADV748X_IO_SLAVE_ADDR_BASE      0xf2
 241
 242 /*
 243  * The ADV748x_Recommended_Settings_PrA_2014-08-20.pdf details both 0x80 and
 244  * 0xff as examples for performing a software reset.
 245  */
 246 #define ADV748X_IO_REG_FF               0xff
 247 #define ADV748X_IO_REG_FF_MAIN_RESET    0xff
 248
 249 /* HDMI RX Map */
 250 #define ADV748X_HDMI_LW1                0x07    /* line width_1 */
 251 #define ADV748X_HDMI_LW1_VERT_FILTER    BIT(7)
 252 #define ADV748X_HDMI_LW1_DE_REGEN       BIT(5)
 253 #define ADV748X_HDMI_LW1_WIDTH_MASK     0x1fff
 254
 255 #define ADV748X_HDMI_F0H1               0x09    /* field0 height_1 */
 256 #define ADV748X_HDMI_F0H1_HEIGHT_MASK   0x1fff
 257
 258 #define ADV748X_HDMI_F1H1               0x0b    /* field1 height_1 */
 259 #define ADV748X_HDMI_F1H1_INTERLACED    BIT(5)
 260
 261 #define ADV748X_HDMI_HFRONT_PORCH       0x20    /* hsync_front_porch_1 */
 262 #define ADV748X_HDMI_HFRONT_PORCH_MASK  0x1fff
 263
 264 #define ADV748X_HDMI_HSYNC_WIDTH        0x22    /* hsync_pulse_width_1 */
 265 #define ADV748X_HDMI_HSYNC_WIDTH_MASK   0x1fff
 266
 267 #define ADV748X_HDMI_HBACK_PORCH        0x24    /* hsync_back_porch_1 */
 268 #define ADV748X_HDMI_HBACK_PORCH_MASK   0x1fff
 269
 270 #define ADV748X_HDMI_VFRONT_PORCH       0x2a    /* field0_vs_front_porch_1 */
 271 #define ADV748X_HDMI_VFRONT_PORCH_MASK  0x3fff
 272
 273 #define ADV748X_HDMI_VSYNC_WIDTH        0x2e    /* field0_vs_pulse_width_1 */
 274 #define ADV748X_HDMI_VSYNC_WIDTH_MASK   0x3fff
 275
 276 #define ADV748X_HDMI_VBACK_PORCH        0x32    /* field0_vs_back_porch_1 */
 277 #define ADV748X_HDMI_VBACK_PORCH_MASK   0x3fff
 278
 279 #define ADV748X_HDMI_TMDS_1             0x51    /* hdmi_reg_51 */
 280 #define ADV748X_HDMI_TMDS_2             0x52    /* hdmi_reg_52 */
 281
 282 /* HDMI RX Repeater Map */
 283 #define ADV748X_REPEATER_EDID_SZ        0x70    /* primary_edid_size */
 284 #define ADV748X_REPEATER_EDID_SZ_SHIFT  4
 285
 286 #define ADV748X_REPEATER_EDID_CTL       0x74    /* hdcp edid controls */
 287 #define ADV748X_REPEATER_EDID_CTL_EN    BIT(0)  /* man_edid_a_enable */
 288
 289 /* SDP Main Map */
 290 #define ADV748X_SDP_INSEL               0x00    /* user_map_rw_reg_00 */
 291
 292 #define ADV748X_SDP_VID_SEL             0x02    /* user_map_rw_reg_02 */
 293 #define ADV748X_SDP_VID_SEL_MASK        0xf0
 294 #define ADV748X_SDP_VID_SEL_SHIFT       4
 295
 296 /* Contrast - Unsigned*/
 297 #define ADV748X_SDP_CON                 0x08    /* user_map_rw_reg_08 */
 298 #define ADV748X_SDP_CON_MIN             0
 299 #define ADV748X_SDP_CON_DEF             128
 300 #define ADV748X_SDP_CON_MAX             255
 301
 302 /* Brightness - Signed */
 303 #define ADV748X_SDP_BRI                 0x0a    /* user_map_rw_reg_0a */
 304 #define ADV748X_SDP_BRI_MIN             -128
 305 #define ADV748X_SDP_BRI_DEF             0
 306 #define ADV748X_SDP_BRI_MAX             127
 307
 308 /* Hue - Signed, inverted*/
 309 #define ADV748X_SDP_HUE                 0x0b    /* user_map_rw_reg_0b */
 310 #define ADV748X_SDP_HUE_MIN             -127
 311 #define ADV748X_SDP_HUE_DEF             0
 312 #define ADV748X_SDP_HUE_MAX             128
 313
 314 /* Test Patterns / Default Values */
 315 #define ADV748X_SDP_DEF                 0x0c    /* user_map_rw_reg_0c */
 316 #define ADV748X_SDP_DEF_VAL_EN          BIT(0)  /* Force free run mode */
 317 #define ADV748X_SDP_DEF_VAL_AUTO_EN     BIT(1)  /* Free run when no signal */
 318
 319 #define ADV748X_SDP_MAP_SEL             0x0e    /* user_map_rw_reg_0e */
 320 #define ADV748X_SDP_MAP_SEL_RO_MAIN     1
 321
 322 /* Free run pattern select */
 323 #define ADV748X_SDP_FRP                 0x14
 324 #define ADV748X_SDP_FRP_MASK            GENMASK(3, 1)
 325
 326 /* Saturation */
 327 #define ADV748X_SDP_SD_SAT_U            0xe3    /* user_map_rw_reg_e3 */
 328 #define ADV748X_SDP_SD_SAT_V            0xe4    /* user_map_rw_reg_e4 */
 329 #define ADV748X_SDP_SAT_MIN             0
 330 #define ADV748X_SDP_SAT_DEF             128
 331 #define ADV748X_SDP_SAT_MAX             255
 332
 333 /* SDP RO Main Map */
 334 #define ADV748X_SDP_RO_10               0x10
 335 #define ADV748X_SDP_RO_10_IN_LOCK       BIT(0)
 336
 337 /* CP Map */
 338 #define ADV748X_CP_PAT_GEN              0x37    /* int_pat_gen_1 */
 339 #define ADV748X_CP_PAT_GEN_EN           BIT(7)
 340
 341 /* Contrast Control - Unsigned */
 342 #define ADV748X_CP_CON                  0x3a    /* contrast_cntrl */
 343 #define ADV748X_CP_CON_MIN              0       /* Minimum contrast */
 344 #define ADV748X_CP_CON_DEF              128     /* Default */
 345 #define ADV748X_CP_CON_MAX              255     /* Maximum contrast */
 346
 347 /* Saturation Control - Unsigned */
 348 #define ADV748X_CP_SAT                  0x3b    /* saturation_cntrl */
 349 #define ADV748X_CP_SAT_MIN              0       /* Minimum saturation */
 350 #define ADV748X_CP_SAT_DEF              128     /* Default */
 351 #define ADV748X_CP_SAT_MAX              255     /* Maximum saturation */
 352
 353 /* Brightness Control - Signed */
 354 #define ADV748X_CP_BRI                  0x3c    /* brightness_cntrl */
 355 #define ADV748X_CP_BRI_MIN              -128    /* Luma is -512d */
 356 #define ADV748X_CP_BRI_DEF              0       /* Luma is 0 */
 357 #define ADV748X_CP_BRI_MAX              127     /* Luma is 508d */
 358
 359 /* Hue Control */
 360 #define ADV748X_CP_HUE                  0x3d    /* hue_cntrl */
 361 #define ADV748X_CP_HUE_MIN              0       /* -90 degree */
 362 #define ADV748X_CP_HUE_DEF              0       /* -90 degree */
 363 #define ADV748X_CP_HUE_MAX              255     /* +90 degree */
 364
 365 #define ADV748X_CP_VID_ADJ              0x3e    /* vid_adj_0 */
 366 #define ADV748X_CP_VID_ADJ_ENABLE       BIT(7)  /* Enable colour controls */
 367
 368 #define ADV748X_CP_DE_POS_HIGH          0x8b    /* de_pos_adj_6 */
 369 #define ADV748X_CP_DE_POS_HIGH_SET      BIT(6)
 370 #define ADV748X_CP_DE_POS_END_LOW       0x8c    /* de_pos_adj_7 */
 371 #define ADV748X_CP_DE_POS_START_LOW     0x8d    /* de_pos_adj_8 */
 372
 373 #define ADV748X_CP_VID_ADJ_2                    0x91
 374 #define ADV748X_CP_VID_ADJ_2_INTERLACED         BIT(6)
 375 #define ADV748X_CP_VID_ADJ_2_INTERLACED_3D      BIT(4)
 376
 377 #define ADV748X_CP_CLMP_POS             0xc9    /* clmp_pos_cntrl_4 */
 378 #define ADV748X_CP_CLMP_POS_DIS_AUTO    BIT(0)  /* dis_auto_param_buff */
 379
 380 /* CSI : TXA/TXB Maps */
 381 #define ADV748X_CSI_VC_REF              0x0d    /* csi_tx_top_reg_0d */
 382 #define ADV748X_CSI_VC_REF_SHIFT        6
 383
 384 #define ADV748X_CSI_FS_AS_LS            0x1e    /* csi_tx_top_reg_1e */
 385 #define ADV748X_CSI_FS_AS_LS_UNKNOWN    BIT(6)  /* Undocumented bit */
 386
 387 /* Register handling */
 388
 389 int adv748x_read(struct adv748x_state *state, u8 addr, u8 reg);
 390 int adv748x_write(struct adv748x_state *state, u8 page, u8 reg, u8 value);
 391 int adv748x_write_block(struct adv748x_state *state, int client_page,
 392                         unsigned int init_reg, const void *val,
 393                         size_t val_len);
 394
 395 #define io_read(s, r) adv748x_read(s, ADV748X_PAGE_IO, r)
 396 #define io_write(s, r, v) adv748x_write(s, ADV748X_PAGE_IO, r, v)
 397 #define io_clrset(s, r, m, v) io_write(s, r, (io_read(s, r) & ~(m)) | (v))
 398
 399 #define hdmi_read(s, r) adv748x_read(s, ADV748X_PAGE_HDMI, r)
 400 #define hdmi_read16(s, r, m) (((hdmi_read(s, r) << 8) | hdmi_read(s, (r)+1)) & (m))
 401 #define hdmi_write(s, r, v) adv748x_write(s, ADV748X_PAGE_HDMI, r, v)
 402
 403 #define repeater_read(s, r) adv748x_read(s, ADV748X_PAGE_REPEATER, r)
 404 #define repeater_write(s, r, v) adv748x_write(s, ADV748X_PAGE_REPEATER, r, v)
 405
 406 #define sdp_read(s, r) adv748x_read(s, ADV748X_PAGE_SDP, r)
 407 #define sdp_write(s, r, v) adv748x_write(s, ADV748X_PAGE_SDP, r, v)
 408 #define sdp_clrset(s, r, m, v) sdp_write(s, r, (sdp_read(s, r) & ~(m)) | (v))
 409
 410 #define cp_read(s, r) adv748x_read(s, ADV748X_PAGE_CP, r)
 411 #define cp_write(s, r, v) adv748x_write(s, ADV748X_PAGE_CP, r, v)
 412 #define cp_clrset(s, r, m, v) cp_write(s, r, (cp_read(s, r) & ~(m)) | (v))
 413
 414 #define tx_read(t, r) adv748x_read(t->state, t->page, r)
 415 #define tx_write(t, r, v) adv748x_write(t->state, t->page, r, v)
 416
 417 static inline struct v4l2_subdev *adv748x_get_remote_sd(struct media_pad *pad)
 418 {
 419         pad = media_entity_remote_pad(pad);
 420         if (!pad)
 421                 return NULL;
 422
 423         return media_entity_to_v4l2_subdev(pad->entity);
 424 }
 425
 426 void adv748x_subdev_init(struct v4l2_subdev *sd, struct adv748x_state *state,
 427                          const struct v4l2_subdev_ops *ops, u32 function,
 428                          const char *ident);
 429
 430 int adv748x_register_subdevs(struct adv748x_state *state,
 431                              struct v4l2_device *v4l2_dev);
 432
 433 int adv748x_tx_power(struct adv748x_csi2 *tx, bool on);
 434
 435 int adv748x_afe_init(struct adv748x_afe *afe);
 436 void adv748x_afe_cleanup(struct adv748x_afe *afe);
 437
 438 int adv748x_csi2_init(struct adv748x_state *state, struct adv748x_csi2 *tx);
 439 void adv748x_csi2_cleanup(struct adv748x_csi2 *tx);
 440 int adv748x_csi2_set_pixelrate(struct v4l2_subdev *sd, s64 rate);
 441
 442 int adv748x_hdmi_init(struct adv748x_hdmi *hdmi);
 443 void adv748x_hdmi_cleanup(struct adv748x_hdmi *hdmi);
 444
 445 #endif /* _ADV748X_H_ */