1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Analog Devices ADV7511 HDMI transmitter driver 4 * 5 * Copyright 2012 Analog Devices Inc. 6 */ 7 8 #ifndef __DRM_I2C_ADV7511_H__ 9 #define __DRM_I2C_ADV7511_H__ 10 11 #include <linux/hdmi.h> 12 #include <linux/i2c.h> 13 #include <linux/regmap.h> 14 #include <linux/regulator/consumer.h> 15 16 #include <drm/drm_bridge.h> 17 #include <drm/drm_connector.h> 18 #include <drm/drm_mipi_dsi.h> 19 #include <drm/drm_modes.h> 20 21 #define ADV7511_REG_CHIP_REVISION 0x00 22 #define ADV7511_REG_N0 0x01 23 #define ADV7511_REG_N1 0x02 24 #define ADV7511_REG_N2 0x03 25 #define ADV7511_REG_SPDIF_FREQ 0x04 26 #define ADV7511_REG_CTS_AUTOMATIC1 0x05 27 #define ADV7511_REG_CTS_AUTOMATIC2 0x06 28 #define ADV7511_REG_CTS_MANUAL0 0x07 29 #define ADV7511_REG_CTS_MANUAL1 0x08 30 #define ADV7511_REG_CTS_MANUAL2 0x09 31 #define ADV7511_REG_AUDIO_SOURCE 0x0a 32 #define ADV7511_REG_AUDIO_CONFIG 0x0b 33 #define ADV7511_REG_I2S_CONFIG 0x0c 34 #define ADV7511_REG_I2S_WIDTH 0x0d 35 #define ADV7511_REG_AUDIO_SUB_SRC0 0x0e 36 #define ADV7511_REG_AUDIO_SUB_SRC1 0x0f 37 #define ADV7511_REG_AUDIO_SUB_SRC2 0x10 38 #define ADV7511_REG_AUDIO_SUB_SRC3 0x11 39 #define ADV7511_REG_AUDIO_CFG1 0x12 40 #define ADV7511_REG_AUDIO_CFG2 0x13 41 #define ADV7511_REG_AUDIO_CFG3 0x14 42 #define ADV7511_REG_I2C_FREQ_ID_CFG 0x15 43 #define ADV7511_REG_VIDEO_INPUT_CFG1 0x16 44 #define ADV7511_REG_CSC_UPPER(x) (0x18 + (x) * 2) 45 #define ADV7511_REG_CSC_LOWER(x) (0x19 + (x) * 2) 46 #define ADV7511_REG_SYNC_DECODER(x) (0x30 + (x)) 47 #define ADV7511_REG_DE_GENERATOR (0x35 + (x)) 48 #define ADV7511_REG_PIXEL_REPETITION 0x3b 49 #define ADV7511_REG_VIC_MANUAL 0x3c 50 #define ADV7511_REG_VIC_SEND 0x3d 51 #define ADV7511_REG_VIC_DETECTED 0x3e 52 #define ADV7511_REG_AUX_VIC_DETECTED 0x3f 53 #define ADV7511_REG_PACKET_ENABLE0 0x40 54 #define ADV7511_REG_POWER 0x41 55 #define ADV7511_REG_STATUS 0x42 56 #define ADV7511_REG_EDID_I2C_ADDR 0x43 57 #define ADV7511_REG_PACKET_ENABLE1 0x44 58 #define ADV7511_REG_PACKET_I2C_ADDR 0x45 59 #define ADV7511_REG_DSD_ENABLE 0x46 60 #define ADV7511_REG_VIDEO_INPUT_CFG2 0x48 61 #define ADV7511_REG_INFOFRAME_UPDATE 0x4a 62 #define ADV7511_REG_GC(x) (0x4b + (x)) /* 0x4b - 0x51 */ 63 #define ADV7511_REG_AVI_INFOFRAME_VERSION 0x52 64 #define ADV7511_REG_AVI_INFOFRAME_LENGTH 0x53 65 #define ADV7511_REG_AVI_INFOFRAME_CHECKSUM 0x54 66 #define ADV7511_REG_AVI_INFOFRAME(x) (0x55 + (x)) /* 0x55 - 0x6f */ 67 #define ADV7511_REG_AUDIO_INFOFRAME_VERSION 0x70 68 #define ADV7511_REG_AUDIO_INFOFRAME_LENGTH 0x71 69 #define ADV7511_REG_AUDIO_INFOFRAME_CHECKSUM 0x72 70 #define ADV7511_REG_AUDIO_INFOFRAME(x) (0x73 + (x)) /* 0x73 - 0x7c */ 71 #define ADV7511_REG_INT_ENABLE(x) (0x94 + (x)) 72 #define ADV7511_REG_INT(x) (0x96 + (x)) 73 #define ADV7511_REG_INPUT_CLK_DIV 0x9d 74 #define ADV7511_REG_PLL_STATUS 0x9e 75 #define ADV7511_REG_HDMI_POWER 0xa1 76 #define ADV7511_REG_HDCP_HDMI_CFG 0xaf 77 #define ADV7511_REG_AN(x) (0xb0 + (x)) /* 0xb0 - 0xb7 */ 78 #define ADV7511_REG_HDCP_STATUS 0xb8 79 #define ADV7511_REG_BCAPS 0xbe 80 #define ADV7511_REG_BKSV(x) (0xc0 + (x)) /* 0xc0 - 0xc3 */ 81 #define ADV7511_REG_EDID_SEGMENT 0xc4 82 #define ADV7511_REG_DDC_STATUS 0xc8 83 #define ADV7511_REG_EDID_READ_CTRL 0xc9 84 #define ADV7511_REG_BSTATUS(x) (0xca + (x)) /* 0xca - 0xcb */ 85 #define ADV7511_REG_TIMING_GEN_SEQ 0xd0 86 #define ADV7511_REG_POWER2 0xd6 87 #define ADV7511_REG_HSYNC_PLACEMENT_MSB 0xfa 88 89 #define ADV7511_REG_SYNC_ADJUSTMENT(x) (0xd7 + (x)) /* 0xd7 - 0xdc */ 90 #define ADV7511_REG_TMDS_CLOCK_INV 0xde 91 #define ADV7511_REG_ARC_CTRL 0xdf 92 #define ADV7511_REG_CEC_I2C_ADDR 0xe1 93 #define ADV7511_REG_CEC_CTRL 0xe2 94 #define ADV7511_REG_CHIP_ID_HIGH 0xf5 95 #define ADV7511_REG_CHIP_ID_LOW 0xf6 96 97 /* Hardware defined default addresses for I2C register maps */ 98 #define ADV7511_CEC_I2C_ADDR_DEFAULT 0x3c 99 #define ADV7511_EDID_I2C_ADDR_DEFAULT 0x3f 100 #define ADV7511_PACKET_I2C_ADDR_DEFAULT 0x38 101 102 #define ADV7511_CSC_ENABLE BIT(7) 103 #define ADV7511_CSC_UPDATE_MODE BIT(5) 104 105 #define ADV7511_INT0_HPD BIT(7) 106 #define ADV7511_INT0_VSYNC BIT(5) 107 #define ADV7511_INT0_AUDIO_FIFO_FULL BIT(4) 108 #define ADV7511_INT0_EDID_READY BIT(2) 109 #define ADV7511_INT0_HDCP_AUTHENTICATED BIT(1) 110 111 #define ADV7511_INT1_DDC_ERROR BIT(7) 112 #define ADV7511_INT1_BKSV BIT(6) 113 #define ADV7511_INT1_CEC_TX_READY BIT(5) 114 #define ADV7511_INT1_CEC_TX_ARBIT_LOST BIT(4) 115 #define ADV7511_INT1_CEC_TX_RETRY_TIMEOUT BIT(3) 116 #define ADV7511_INT1_CEC_RX_READY3 BIT(2) 117 #define ADV7511_INT1_CEC_RX_READY2 BIT(1) 118 #define ADV7511_INT1_CEC_RX_READY1 BIT(0) 119 120 #define ADV7511_ARC_CTRL_POWER_DOWN BIT(0) 121 122 #define ADV7511_CEC_CTRL_POWER_DOWN BIT(0) 123 124 #define ADV7511_POWER_POWER_DOWN BIT(6) 125 126 #define ADV7511_HDMI_CFG_MODE_MASK 0x2 127 #define ADV7511_HDMI_CFG_MODE_DVI 0x0 128 #define ADV7511_HDMI_CFG_MODE_HDMI 0x2 129 130 #define ADV7511_AUDIO_SELECT_I2C 0x0 131 #define ADV7511_AUDIO_SELECT_SPDIF 0x1 132 #define ADV7511_AUDIO_SELECT_DSD 0x2 133 #define ADV7511_AUDIO_SELECT_HBR 0x3 134 #define ADV7511_AUDIO_SELECT_DST 0x4 135 136 #define ADV7511_I2S_SAMPLE_LEN_16 0x2 137 #define ADV7511_I2S_SAMPLE_LEN_20 0x3 138 #define ADV7511_I2S_SAMPLE_LEN_18 0x4 139 #define ADV7511_I2S_SAMPLE_LEN_22 0x5 140 #define ADV7511_I2S_SAMPLE_LEN_19 0x8 141 #define ADV7511_I2S_SAMPLE_LEN_23 0x9 142 #define ADV7511_I2S_SAMPLE_LEN_24 0xb 143 #define ADV7511_I2S_SAMPLE_LEN_17 0xc 144 #define ADV7511_I2S_SAMPLE_LEN_21 0xd 145 146 #define ADV7511_SAMPLE_FREQ_44100 0x0 147 #define ADV7511_SAMPLE_FREQ_48000 0x2 148 #define ADV7511_SAMPLE_FREQ_32000 0x3 149 #define ADV7511_SAMPLE_FREQ_88200 0x8 150 #define ADV7511_SAMPLE_FREQ_96000 0xa 151 #define ADV7511_SAMPLE_FREQ_176400 0xc 152 #define ADV7511_SAMPLE_FREQ_192000 0xe 153 154 #define ADV7511_STATUS_POWER_DOWN_POLARITY BIT(7) 155 #define ADV7511_STATUS_HPD BIT(6) 156 #define ADV7511_STATUS_MONITOR_SENSE BIT(5) 157 #define ADV7511_STATUS_I2S_32BIT_MODE BIT(3) 158 159 #define ADV7511_PACKET_ENABLE_N_CTS BIT(8+6) 160 #define ADV7511_PACKET_ENABLE_AUDIO_SAMPLE BIT(8+5) 161 #define ADV7511_PACKET_ENABLE_AVI_INFOFRAME BIT(8+4) 162 #define ADV7511_PACKET_ENABLE_AUDIO_INFOFRAME BIT(8+3) 163 #define ADV7511_PACKET_ENABLE_GC BIT(7) 164 #define ADV7511_PACKET_ENABLE_SPD BIT(6) 165 #define ADV7511_PACKET_ENABLE_MPEG BIT(5) 166 #define ADV7511_PACKET_ENABLE_ACP BIT(4) 167 #define ADV7511_PACKET_ENABLE_ISRC BIT(3) 168 #define ADV7511_PACKET_ENABLE_GM BIT(2) 169 #define ADV7511_PACKET_ENABLE_SPARE2 BIT(1) 170 #define ADV7511_PACKET_ENABLE_SPARE1 BIT(0) 171 172 #define ADV7511_REG_POWER2_HPD_SRC_MASK 0xc0 173 #define ADV7511_REG_POWER2_HPD_SRC_BOTH 0x00 174 #define ADV7511_REG_POWER2_HPD_SRC_HPD 0x40 175 #define ADV7511_REG_POWER2_HPD_SRC_CEC 0x80 176 #define ADV7511_REG_POWER2_HPD_SRC_NONE 0xc0 177 #define ADV7511_REG_POWER2_TDMS_ENABLE BIT(4) 178 #define ADV7511_REG_POWER2_GATE_INPUT_CLK BIT(0) 179 180 #define ADV7511_LOW_REFRESH_RATE_NONE 0x0 181 #define ADV7511_LOW_REFRESH_RATE_24HZ 0x1 182 #define ADV7511_LOW_REFRESH_RATE_25HZ 0x2 183 #define ADV7511_LOW_REFRESH_RATE_30HZ 0x3 184 185 #define ADV7511_AUDIO_CFG3_LEN_MASK 0x0f 186 #define ADV7511_I2C_FREQ_ID_CFG_RATE_MASK 0xf0 187 188 #define ADV7511_AUDIO_SOURCE_I2S 0 189 #define ADV7511_AUDIO_SOURCE_SPDIF 1 190 191 #define ADV7511_I2S_FORMAT_I2S 0 192 #define ADV7511_I2S_FORMAT_RIGHT_J 1 193 #define ADV7511_I2S_FORMAT_LEFT_J 2 194 #define ADV7511_I2S_IEC958_DIRECT 3 195 196 #define ADV7511_PACKET(p, x) ((p) * 0x20 + (x)) 197 #define ADV7511_PACKET_SDP(x) ADV7511_PACKET(0, x) 198 #define ADV7511_PACKET_MPEG(x) ADV7511_PACKET(1, x) 199 #define ADV7511_PACKET_ACP(x) ADV7511_PACKET(2, x) 200 #define ADV7511_PACKET_ISRC1(x) ADV7511_PACKET(3, x) 201 #define ADV7511_PACKET_ISRC2(x) ADV7511_PACKET(4, x) 202 #define ADV7511_PACKET_GM(x) ADV7511_PACKET(5, x) 203 #define ADV7511_PACKET_SPARE(x) ADV7511_PACKET(6, x) 204 205 #define ADV7511_REG_CEC_TX_FRAME_HDR 0x00 206 #define ADV7511_REG_CEC_TX_FRAME_DATA0 0x01 207 #define ADV7511_REG_CEC_TX_FRAME_LEN 0x10 208 #define ADV7511_REG_CEC_TX_ENABLE 0x11 209 #define ADV7511_REG_CEC_TX_RETRY 0x12 210 #define ADV7511_REG_CEC_TX_LOW_DRV_CNT 0x14 211 #define ADV7511_REG_CEC_RX_FRAME_HDR 0x15 212 #define ADV7511_REG_CEC_RX_FRAME_DATA0 0x16 213 #define ADV7511_REG_CEC_RX_FRAME_LEN 0x25 214 #define ADV7511_REG_CEC_RX_ENABLE 0x26 215 #define ADV7511_REG_CEC_RX_BUFFERS 0x4a 216 #define ADV7511_REG_CEC_LOG_ADDR_MASK 0x4b 217 #define ADV7511_REG_CEC_LOG_ADDR_0_1 0x4c 218 #define ADV7511_REG_CEC_LOG_ADDR_2 0x4d 219 #define ADV7511_REG_CEC_CLK_DIV 0x4e 220 #define ADV7511_REG_CEC_SOFT_RESET 0x50 221 222 #define ADV7533_REG_CEC_OFFSET 0x70 223 224 enum adv7511_input_clock { 225 ADV7511_INPUT_CLOCK_1X, 226 ADV7511_INPUT_CLOCK_2X, 227 ADV7511_INPUT_CLOCK_DDR, 228 }; 229 230 enum adv7511_input_justification { 231 ADV7511_INPUT_JUSTIFICATION_EVENLY = 0, 232 ADV7511_INPUT_JUSTIFICATION_RIGHT = 1, 233 ADV7511_INPUT_JUSTIFICATION_LEFT = 2, 234 }; 235 236 enum adv7511_input_sync_pulse { 237 ADV7511_INPUT_SYNC_PULSE_DE = 0, 238 ADV7511_INPUT_SYNC_PULSE_HSYNC = 1, 239 ADV7511_INPUT_SYNC_PULSE_VSYNC = 2, 240 ADV7511_INPUT_SYNC_PULSE_NONE = 3, 241 }; 242 243 /** 244 * enum adv7511_sync_polarity - Polarity for the input sync signals 245 * @ADV7511_SYNC_POLARITY_PASSTHROUGH: Sync polarity matches that of 246 * the currently configured mode. 247 * @ADV7511_SYNC_POLARITY_LOW: Sync polarity is low 248 * @ADV7511_SYNC_POLARITY_HIGH: Sync polarity is high 249 * 250 * If the polarity is set to either LOW or HIGH the driver will configure the 251 * ADV7511 to internally invert the sync signal if required to match the sync 252 * polarity setting for the currently selected output mode. 253 * 254 * If the polarity is set to PASSTHROUGH, the ADV7511 will route the signal 255 * unchanged. This is used when the upstream graphics core already generates 256 * the sync signals with the correct polarity. 257 */ 258 enum adv7511_sync_polarity { 259 ADV7511_SYNC_POLARITY_PASSTHROUGH, 260 ADV7511_SYNC_POLARITY_LOW, 261 ADV7511_SYNC_POLARITY_HIGH, 262 }; 263 264 /** 265 * struct adv7511_link_config - Describes adv7511 hardware configuration 266 * @input_color_depth: Number of bits per color component (8, 10 or 12) 267 * @input_colorspace: The input colorspace (RGB, YUV444, YUV422) 268 * @input_clock: The input video clock style (1x, 2x, DDR) 269 * @input_style: The input component arrangement variant 270 * @input_justification: Video input format bit justification 271 * @clock_delay: Clock delay for the input clock (in ps) 272 * @embedded_sync: Video input uses BT.656-style embedded sync 273 * @sync_pulse: Select the sync pulse 274 * @vsync_polarity: vsync input signal configuration 275 * @hsync_polarity: hsync input signal configuration 276 */ 277 struct adv7511_link_config { 278 unsigned int input_color_depth; 279 enum hdmi_colorspace input_colorspace; 280 enum adv7511_input_clock input_clock; 281 unsigned int input_style; 282 enum adv7511_input_justification input_justification; 283 284 int clock_delay; 285 286 bool embedded_sync; 287 enum adv7511_input_sync_pulse sync_pulse; 288 enum adv7511_sync_polarity vsync_polarity; 289 enum adv7511_sync_polarity hsync_polarity; 290 }; 291 292 /** 293 * enum adv7511_csc_scaling - Scaling factor for the ADV7511 CSC 294 * @ADV7511_CSC_SCALING_1: CSC results are not scaled 295 * @ADV7511_CSC_SCALING_2: CSC results are scaled by a factor of two 296 * @ADV7511_CSC_SCALING_4: CSC results are scalled by a factor of four 297 */ 298 enum adv7511_csc_scaling { 299 ADV7511_CSC_SCALING_1 = 0, 300 ADV7511_CSC_SCALING_2 = 1, 301 ADV7511_CSC_SCALING_4 = 2, 302 }; 303 304 /** 305 * struct adv7511_video_config - Describes adv7511 hardware configuration 306 * @csc_enable: Whether to enable color space conversion 307 * @csc_scaling_factor: Color space conversion scaling factor 308 * @csc_coefficents: Color space conversion coefficents 309 * @hdmi_mode: Whether to use HDMI or DVI output mode 310 * @avi_infoframe: HDMI infoframe 311 */ 312 struct adv7511_video_config { 313 bool csc_enable; 314 enum adv7511_csc_scaling csc_scaling_factor; 315 const uint16_t *csc_coefficents; 316 317 bool hdmi_mode; 318 struct hdmi_avi_infoframe avi_infoframe; 319 }; 320 321 enum adv7511_type { 322 ADV7511, 323 ADV7533, 324 ADV7535, 325 }; 326 327 #define ADV7511_MAX_ADDRS 3 328 329 struct adv7511 { 330 struct i2c_client *i2c_main; 331 struct i2c_client *i2c_edid; 332 struct i2c_client *i2c_packet; 333 struct i2c_client *i2c_cec; 334 335 struct regmap *regmap; 336 struct regmap *regmap_cec; 337 enum drm_connector_status status; 338 bool powered; 339 340 struct drm_display_mode curr_mode; 341 342 unsigned int f_tmds; 343 unsigned int f_audio; 344 unsigned int audio_source; 345 346 unsigned int current_edid_segment; 347 uint8_t edid_buf[256]; 348 bool edid_read; 349 350 wait_queue_head_t wq; 351 struct work_struct hpd_work; 352 353 struct drm_bridge bridge; 354 struct drm_connector connector; 355 356 bool embedded_sync; 357 enum adv7511_sync_polarity vsync_polarity; 358 enum adv7511_sync_polarity hsync_polarity; 359 bool rgb; 360 361 struct gpio_desc *gpio_pd; 362 363 struct regulator_bulk_data *supplies; 364 unsigned int num_supplies; 365 366 /* ADV7533 DSI RX related params */ 367 struct device_node *host_node; 368 struct mipi_dsi_device *dsi; 369 u8 num_dsi_lanes; 370 bool use_timing_gen; 371 372 enum adv7511_type type; 373 struct platform_device *audio_pdev; 374 375 struct cec_adapter *cec_adap; 376 u8 cec_addr[ADV7511_MAX_ADDRS]; 377 u8 cec_valid_addrs; 378 bool cec_enabled_adap; 379 struct clk *cec_clk; 380 u32 cec_clk_freq; 381 }; 382 383 #ifdef CONFIG_DRM_I2C_ADV7511_CEC 384 int adv7511_cec_init(struct device *dev, struct adv7511 *adv7511); 385 void adv7511_cec_irq_process(struct adv7511 *adv7511, unsigned int irq1); 386 #else 387 static inline int adv7511_cec_init(struct device *dev, struct adv7511 *adv7511) 388 { 389 unsigned int offset = adv7511->type == ADV7533 ? 390 ADV7533_REG_CEC_OFFSET : 0; 391 392 regmap_write(adv7511->regmap, ADV7511_REG_CEC_CTRL + offset, 393 ADV7511_CEC_CTRL_POWER_DOWN); 394 return 0; 395 } 396 #endif 397 398 void adv7533_dsi_power_on(struct adv7511 *adv); 399 void adv7533_dsi_power_off(struct adv7511 *adv); 400 void adv7533_mode_set(struct adv7511 *adv, const struct drm_display_mode *mode); 401 int adv7533_patch_registers(struct adv7511 *adv); 402 int adv7533_patch_cec_registers(struct adv7511 *adv); 403 int adv7533_attach_dsi(struct adv7511 *adv); 404 void adv7533_detach_dsi(struct adv7511 *adv); 405 int adv7533_parse_dt(struct device_node *np, struct adv7511 *adv); 406 407 #ifdef CONFIG_DRM_I2C_ADV7511_AUDIO 408 int adv7511_audio_init(struct device *dev, struct adv7511 *adv7511); 409 void adv7511_audio_exit(struct adv7511 *adv7511); 410 #else /*CONFIG_DRM_I2C_ADV7511_AUDIO */ 411 static inline int adv7511_audio_init(struct device *dev, struct adv7511 *adv7511) 412 { 413 return 0; 414 } 415 static inline void adv7511_audio_exit(struct adv7511 *adv7511) 416 { 417 } 418 #endif /* CONFIG_DRM_I2C_ADV7511_AUDIO */ 419 420 #endif /* __DRM_I2C_ADV7511_H__ */ 421