1 /* 2 * (C) Copyright 2008-2017 Fuzhou Rockchip Electronics Co., Ltd 3 * 4 * SPDX-License-Identifier: GPL-2.0+ 5 */ 6 7 #include <common.h> 8 #include <malloc.h> 9 #include <syscon.h> 10 #include <asm/gpio.h> 11 #include <asm/arch-rockchip/clock.h> 12 #include <asm/arch/vendor.h> 13 #include <edid.h> 14 #include <dm/device.h> 15 #include <dm/of_access.h> 16 #include <dm/ofnode.h> 17 #include <dm/read.h> 18 #include <linux/hdmi.h> 19 #include <linux/media-bus-format.h> 20 #include <linux/dw_hdmi.h> 21 #include <asm/io.h> 22 #include "rockchip_display.h" 23 #include "rockchip_crtc.h" 24 #include "rockchip_connector.h" 25 #include "dw_hdmi.h" 26 #include "rockchip_phy.h" 27 28 #define HDCP_PRIVATE_KEY_SIZE 280 29 #define HDCP_KEY_SHA_SIZE 20 30 #define HDMI_HDCP1X_ID 5 31 #define HDMI_EDID_BLOCK_LEN 128 32 /* 33 * Unless otherwise noted, entries in this table are 100% optimization. 34 * Values can be obtained from hdmi_compute_n() but that function is 35 * slow so we pre-compute values we expect to see. 36 * 37 * All 32k and 48k values are expected to be the same (due to the way 38 * the math works) for any rate that's an exact kHz. 39 */ 40 static const struct dw_hdmi_audio_tmds_n common_tmds_n_table[] = { 41 { .tmds = 25175000, .n_32k = 4096, .n_44k1 = 12854, .n_48k = 6144, }, 42 { .tmds = 25200000, .n_32k = 4096, .n_44k1 = 5656, .n_48k = 6144, }, 43 { .tmds = 27000000, .n_32k = 4096, .n_44k1 = 5488, .n_48k = 6144, }, 44 { .tmds = 28320000, .n_32k = 4096, .n_44k1 = 5586, .n_48k = 6144, }, 45 { .tmds = 30240000, .n_32k = 4096, .n_44k1 = 5642, .n_48k = 6144, }, 46 { .tmds = 31500000, .n_32k = 4096, .n_44k1 = 5600, .n_48k = 6144, }, 47 { .tmds = 32000000, .n_32k = 4096, .n_44k1 = 5733, .n_48k = 6144, }, 48 { .tmds = 33750000, .n_32k = 4096, .n_44k1 = 6272, .n_48k = 6144, }, 49 { .tmds = 36000000, .n_32k = 4096, .n_44k1 = 5684, .n_48k = 6144, }, 50 { .tmds = 40000000, .n_32k = 4096, .n_44k1 = 5733, .n_48k = 6144, }, 51 { .tmds = 49500000, .n_32k = 4096, .n_44k1 = 5488, .n_48k = 6144, }, 52 { .tmds = 50000000, .n_32k = 4096, .n_44k1 = 5292, .n_48k = 6144, }, 53 { .tmds = 54000000, .n_32k = 4096, .n_44k1 = 5684, .n_48k = 6144, }, 54 { .tmds = 65000000, .n_32k = 4096, .n_44k1 = 7056, .n_48k = 6144, }, 55 { .tmds = 68250000, .n_32k = 4096, .n_44k1 = 5376, .n_48k = 6144, }, 56 { .tmds = 71000000, .n_32k = 4096, .n_44k1 = 7056, .n_48k = 6144, }, 57 { .tmds = 72000000, .n_32k = 4096, .n_44k1 = 5635, .n_48k = 6144, }, 58 { .tmds = 73250000, .n_32k = 4096, .n_44k1 = 14112, .n_48k = 6144, }, 59 { .tmds = 74250000, .n_32k = 4096, .n_44k1 = 6272, .n_48k = 6144, }, 60 { .tmds = 75000000, .n_32k = 4096, .n_44k1 = 5880, .n_48k = 6144, }, 61 { .tmds = 78750000, .n_32k = 4096, .n_44k1 = 5600, .n_48k = 6144, }, 62 { .tmds = 78800000, .n_32k = 4096, .n_44k1 = 5292, .n_48k = 6144, }, 63 { .tmds = 79500000, .n_32k = 4096, .n_44k1 = 4704, .n_48k = 6144, }, 64 { .tmds = 83500000, .n_32k = 4096, .n_44k1 = 7056, .n_48k = 6144, }, 65 { .tmds = 85500000, .n_32k = 4096, .n_44k1 = 5488, .n_48k = 6144, }, 66 { .tmds = 88750000, .n_32k = 4096, .n_44k1 = 14112, .n_48k = 6144, }, 67 { .tmds = 97750000, .n_32k = 4096, .n_44k1 = 14112, .n_48k = 6144, }, 68 { .tmds = 101000000, .n_32k = 4096, .n_44k1 = 7056, .n_48k = 6144, }, 69 { .tmds = 106500000, .n_32k = 4096, .n_44k1 = 4704, .n_48k = 6144, }, 70 { .tmds = 108000000, .n_32k = 4096, .n_44k1 = 5684, .n_48k = 6144, }, 71 { .tmds = 115500000, .n_32k = 4096, .n_44k1 = 5712, .n_48k = 6144, }, 72 { .tmds = 119000000, .n_32k = 4096, .n_44k1 = 5544, .n_48k = 6144, }, 73 { .tmds = 135000000, .n_32k = 4096, .n_44k1 = 5488, .n_48k = 6144, }, 74 { .tmds = 146250000, .n_32k = 4096, .n_44k1 = 6272, .n_48k = 6144, }, 75 { .tmds = 148500000, .n_32k = 4096, .n_44k1 = 5488, .n_48k = 6144, }, 76 { .tmds = 154000000, .n_32k = 4096, .n_44k1 = 5544, .n_48k = 6144, }, 77 { .tmds = 162000000, .n_32k = 4096, .n_44k1 = 5684, .n_48k = 6144, }, 78 79 /* For 297 MHz+ HDMI spec have some other rule for setting N */ 80 { .tmds = 297000000, .n_32k = 3073, .n_44k1 = 4704, .n_48k = 5120, }, 81 { .tmds = 594000000, .n_32k = 3073, .n_44k1 = 9408, .n_48k = 10240, }, 82 83 /* End of table */ 84 { .tmds = 0, .n_32k = 0, .n_44k1 = 0, .n_48k = 0, }, 85 }; 86 87 static const u16 csc_coeff_default[3][4] = { 88 { 0x2000, 0x0000, 0x0000, 0x0000 }, 89 { 0x0000, 0x2000, 0x0000, 0x0000 }, 90 { 0x0000, 0x0000, 0x2000, 0x0000 } 91 }; 92 93 static const u16 csc_coeff_rgb_out_eitu601[3][4] = { 94 { 0x2000, 0x6926, 0x74fd, 0x010e }, 95 { 0x2000, 0x2cdd, 0x0000, 0x7e9a }, 96 { 0x2000, 0x0000, 0x38b4, 0x7e3b } 97 }; 98 99 static const u16 csc_coeff_rgb_out_eitu709[3][4] = { 100 { 0x2000, 0x7106, 0x7a02, 0x00a7 }, 101 { 0x2000, 0x3264, 0x0000, 0x7e6d }, 102 { 0x2000, 0x0000, 0x3b61, 0x7e25 } 103 }; 104 105 static const u16 csc_coeff_rgb_in_eitu601[3][4] = { 106 { 0x2591, 0x1322, 0x074b, 0x0000 }, 107 { 0x6535, 0x2000, 0x7acc, 0x0200 }, 108 { 0x6acd, 0x7534, 0x2000, 0x0200 } 109 }; 110 111 static const u16 csc_coeff_rgb_in_eitu709[3][4] = { 112 { 0x2dc5, 0x0d9b, 0x049e, 0x0000 }, 113 { 0x62f0, 0x2000, 0x7d11, 0x0200 }, 114 { 0x6756, 0x78ab, 0x2000, 0x0200 } 115 }; 116 117 static const u16 csc_coeff_full_to_limited[3][4] = { 118 { 0x36f7, 0x0000, 0x0000, 0x0040 }, 119 { 0x0000, 0x36f7, 0x0000, 0x0040 }, 120 { 0x0000, 0x0000, 0x36f7, 0x0040 } 121 }; 122 123 struct hdmi_vmode { 124 bool mdataenablepolarity; 125 126 unsigned int mpixelclock; 127 unsigned int mpixelrepetitioninput; 128 unsigned int mpixelrepetitionoutput; 129 unsigned int mtmdsclock; 130 }; 131 132 struct hdmi_data_info { 133 unsigned int enc_in_bus_format; 134 unsigned int enc_out_bus_format; 135 unsigned int enc_in_encoding; 136 unsigned int enc_out_encoding; 137 unsigned int quant_range; 138 unsigned int pix_repet_factor; 139 struct hdmi_vmode video_mode; 140 }; 141 142 struct dw_hdmi_phy_data { 143 enum dw_hdmi_phy_type type; 144 const char *name; 145 unsigned int gen; 146 bool has_svsret; 147 int (*configure)(struct dw_hdmi *hdmi, 148 const struct dw_hdmi_plat_data *pdata, 149 unsigned long mpixelclock); 150 }; 151 152 struct hdcp_keys { 153 u8 KSV[8]; 154 u8 devicekey[HDCP_PRIVATE_KEY_SIZE]; 155 u8 sha1[HDCP_KEY_SHA_SIZE]; 156 u8 seeds[2]; 157 }; 158 159 struct dw_hdmi_i2c { 160 u8 slave_reg; 161 bool is_regaddr; 162 bool is_segment; 163 164 unsigned int scl_high_ns; 165 unsigned int scl_low_ns; 166 }; 167 168 struct dw_hdmi { 169 int id; 170 enum dw_hdmi_devtype dev_type; 171 unsigned int version; 172 struct hdmi_data_info hdmi_data; 173 struct hdmi_edid_data edid_data; 174 const struct dw_hdmi_plat_data *plat_data; 175 struct ddc_adapter adap; 176 177 int vic; 178 int io_width; 179 180 unsigned long bus_format; 181 bool cable_plugin; 182 bool sink_is_hdmi; 183 bool sink_has_audio; 184 void *regs; 185 void *grf; 186 void *gpio_base; 187 struct dw_hdmi_i2c *i2c; 188 189 struct { 190 const struct dw_hdmi_phy_ops *ops; 191 const char *name; 192 void *data; 193 bool enabled; 194 } phy; 195 196 struct drm_display_mode previous_mode; 197 198 unsigned int sample_rate; 199 unsigned int audio_cts; 200 unsigned int audio_n; 201 bool audio_enable; 202 bool scramble_low_rates; 203 204 void (*write)(struct dw_hdmi *hdmi, u8 val, int offset); 205 u8 (*read)(struct dw_hdmi *hdmi, int offset); 206 207 bool hdcp1x_enable; 208 bool output_bus_format_rgb; 209 210 struct gpio_desc hpd_gpiod; 211 }; 212 213 static void dw_hdmi_writel(struct dw_hdmi *hdmi, u8 val, int offset) 214 { 215 writel(val, hdmi->regs + (offset << 2)); 216 } 217 218 static u8 dw_hdmi_readl(struct dw_hdmi *hdmi, int offset) 219 { 220 return readl(hdmi->regs + (offset << 2)); 221 } 222 223 static void dw_hdmi_writeb(struct dw_hdmi *hdmi, u8 val, int offset) 224 { 225 writeb(val, hdmi->regs + offset); 226 } 227 228 static u8 dw_hdmi_readb(struct dw_hdmi *hdmi, int offset) 229 { 230 return readb(hdmi->regs + offset); 231 } 232 233 static inline void hdmi_writeb(struct dw_hdmi *hdmi, u8 val, int offset) 234 { 235 hdmi->write(hdmi, val, offset); 236 } 237 238 static inline u8 hdmi_readb(struct dw_hdmi *hdmi, int offset) 239 { 240 return hdmi->read(hdmi, offset); 241 } 242 243 static void hdmi_modb(struct dw_hdmi *hdmi, u8 data, u8 mask, unsigned reg) 244 { 245 u8 val = hdmi_readb(hdmi, reg) & ~mask; 246 247 val |= data & mask; 248 hdmi_writeb(hdmi, val, reg); 249 } 250 251 static void hdmi_mask_writeb(struct dw_hdmi *hdmi, u8 data, unsigned int reg, 252 u8 shift, u8 mask) 253 { 254 hdmi_modb(hdmi, data << shift, mask, reg); 255 } 256 257 static bool hdmi_bus_fmt_is_rgb(unsigned int bus_format) 258 { 259 switch (bus_format) { 260 case MEDIA_BUS_FMT_RGB888_1X24: 261 case MEDIA_BUS_FMT_RGB101010_1X30: 262 case MEDIA_BUS_FMT_RGB121212_1X36: 263 case MEDIA_BUS_FMT_RGB161616_1X48: 264 return true; 265 266 default: 267 return false; 268 } 269 } 270 271 static bool hdmi_bus_fmt_is_yuv444(unsigned int bus_format) 272 { 273 switch (bus_format) { 274 case MEDIA_BUS_FMT_YUV8_1X24: 275 case MEDIA_BUS_FMT_YUV10_1X30: 276 case MEDIA_BUS_FMT_YUV12_1X36: 277 case MEDIA_BUS_FMT_YUV16_1X48: 278 return true; 279 280 default: 281 return false; 282 } 283 } 284 285 static bool hdmi_bus_fmt_is_yuv422(unsigned int bus_format) 286 { 287 switch (bus_format) { 288 case MEDIA_BUS_FMT_UYVY8_1X16: 289 case MEDIA_BUS_FMT_UYVY10_1X20: 290 case MEDIA_BUS_FMT_UYVY12_1X24: 291 return true; 292 293 default: 294 return false; 295 } 296 } 297 298 static bool hdmi_bus_fmt_is_yuv420(unsigned int bus_format) 299 { 300 switch (bus_format) { 301 case MEDIA_BUS_FMT_UYYVYY8_0_5X24: 302 case MEDIA_BUS_FMT_UYYVYY10_0_5X30: 303 case MEDIA_BUS_FMT_UYYVYY12_0_5X36: 304 case MEDIA_BUS_FMT_UYYVYY16_0_5X48: 305 return true; 306 307 default: 308 return false; 309 } 310 } 311 312 static int hdmi_bus_fmt_color_depth(unsigned int bus_format) 313 { 314 switch (bus_format) { 315 case MEDIA_BUS_FMT_RGB888_1X24: 316 case MEDIA_BUS_FMT_YUV8_1X24: 317 case MEDIA_BUS_FMT_UYVY8_1X16: 318 case MEDIA_BUS_FMT_UYYVYY8_0_5X24: 319 return 8; 320 321 case MEDIA_BUS_FMT_RGB101010_1X30: 322 case MEDIA_BUS_FMT_YUV10_1X30: 323 case MEDIA_BUS_FMT_UYVY10_1X20: 324 case MEDIA_BUS_FMT_UYYVYY10_0_5X30: 325 return 10; 326 327 case MEDIA_BUS_FMT_RGB121212_1X36: 328 case MEDIA_BUS_FMT_YUV12_1X36: 329 case MEDIA_BUS_FMT_UYVY12_1X24: 330 case MEDIA_BUS_FMT_UYYVYY12_0_5X36: 331 return 12; 332 333 case MEDIA_BUS_FMT_RGB161616_1X48: 334 case MEDIA_BUS_FMT_YUV16_1X48: 335 case MEDIA_BUS_FMT_UYYVYY16_0_5X48: 336 return 16; 337 338 default: 339 return 0; 340 } 341 } 342 343 static int is_color_space_conversion(struct dw_hdmi *hdmi) 344 { 345 struct drm_display_mode *mode = 346 hdmi->edid_data.preferred_mode; 347 bool is_cea_default; 348 349 is_cea_default = (drm_match_cea_mode(mode) > 1) && 350 (hdmi->hdmi_data.quant_range == 351 HDMI_QUANTIZATION_RANGE_DEFAULT); 352 353 /* 354 * When output is rgb limited range or default range with 355 * cea mode, csc should be enabled. 356 */ 357 if (hdmi->hdmi_data.enc_in_bus_format != 358 hdmi->hdmi_data.enc_out_bus_format || 359 ((hdmi->hdmi_data.quant_range == HDMI_QUANTIZATION_RANGE_LIMITED || 360 is_cea_default) && 361 hdmi_bus_fmt_is_rgb(hdmi->hdmi_data.enc_in_bus_format))) 362 return 1; 363 364 return 0; 365 } 366 367 static int is_color_space_decimation(struct dw_hdmi *hdmi) 368 { 369 if (!hdmi_bus_fmt_is_yuv422(hdmi->hdmi_data.enc_out_bus_format)) 370 return 0; 371 372 if (hdmi_bus_fmt_is_rgb(hdmi->hdmi_data.enc_in_bus_format) || 373 hdmi_bus_fmt_is_yuv444(hdmi->hdmi_data.enc_in_bus_format)) 374 return 1; 375 376 return 0; 377 } 378 379 static inline void hdmi_phy_test_clear(struct dw_hdmi *hdmi, 380 unsigned char bit) 381 { 382 hdmi_modb(hdmi, bit << HDMI_PHY_TST0_TSTCLR_OFFSET, 383 HDMI_PHY_TST0_TSTCLR_MASK, HDMI_PHY_TST0); 384 } 385 386 static inline void hdmi_phy_test_enable(struct dw_hdmi *hdmi, 387 unsigned char bit) 388 { 389 hdmi_modb(hdmi, bit << HDMI_PHY_TST0_TSTEN_OFFSET, 390 HDMI_PHY_TST0_TSTEN_MASK, HDMI_PHY_TST0); 391 } 392 393 static inline void hdmi_phy_test_clock(struct dw_hdmi *hdmi, 394 unsigned char bit) 395 { 396 hdmi_modb(hdmi, bit << HDMI_PHY_TST0_TSTCLK_OFFSET, 397 HDMI_PHY_TST0_TSTCLK_MASK, HDMI_PHY_TST0); 398 } 399 400 static inline void hdmi_phy_test_din(struct dw_hdmi *hdmi, 401 unsigned char bit) 402 { 403 hdmi_writeb(hdmi, bit, HDMI_PHY_TST1); 404 } 405 406 static inline void hdmi_phy_test_dout(struct dw_hdmi *hdmi, 407 unsigned char bit) 408 { 409 hdmi_writeb(hdmi, bit, HDMI_PHY_TST2); 410 } 411 412 static int dw_hdmi_i2c_read(struct dw_hdmi *hdmi, 413 unsigned char *buf, unsigned int length) 414 { 415 struct dw_hdmi_i2c *i2c = hdmi->i2c; 416 int interrupt = 0, i = 20; 417 bool read_edid = false; 418 419 if (!i2c->is_regaddr) { 420 printf("set read register address to 0\n"); 421 i2c->slave_reg = 0x00; 422 i2c->is_regaddr = true; 423 } 424 425 /* edid reads are in 128 bytes. scdc reads are in 1 byte */ 426 if (length == HDMI_EDID_BLOCK_LEN) 427 read_edid = true; 428 429 while (length > 0) { 430 hdmi_writeb(hdmi, i2c->slave_reg, HDMI_I2CM_ADDRESS); 431 432 if (read_edid) { 433 i2c->slave_reg += 8; 434 length -= 8; 435 } else { 436 i2c->slave_reg++; 437 length--; 438 } 439 440 if (i2c->is_segment) { 441 if (read_edid) 442 hdmi_writeb(hdmi, HDMI_I2CM_OPERATION_READ8_EXT, 443 HDMI_I2CM_OPERATION); 444 else 445 hdmi_writeb(hdmi, HDMI_I2CM_OPERATION_READ_EXT, 446 HDMI_I2CM_OPERATION); 447 } else { 448 if (read_edid) 449 hdmi_writeb(hdmi, HDMI_I2CM_OPERATION_READ8, 450 HDMI_I2CM_OPERATION); 451 else 452 hdmi_writeb(hdmi, HDMI_I2CM_OPERATION_READ, 453 HDMI_I2CM_OPERATION); 454 } 455 456 while (i--) { 457 udelay(1000); 458 interrupt = hdmi_readb(hdmi, HDMI_IH_I2CM_STAT0); 459 if (interrupt) 460 hdmi_writeb(hdmi, interrupt, 461 HDMI_IH_I2CM_STAT0); 462 if (interrupt & (m_SCDC_READREQ | m_I2CM_DONE | 463 m_I2CM_ERROR)) 464 break; 465 } 466 467 if (!interrupt) { 468 printf("[%s] i2c read reg[0x%02x] no interrupt\n", 469 __func__, i2c->slave_reg); 470 hdmi_writeb(hdmi, 0, HDMI_I2CM_SOFTRSTZ); 471 hdmi_writeb(hdmi, HDMI_I2CM_OPERATION_BUS_CLEAR, 472 HDMI_I2CM_OPERATION); 473 udelay(1000); 474 return -EAGAIN; 475 } 476 477 /* Check for error condition on the bus */ 478 if (interrupt & HDMI_IH_I2CM_STAT0_ERROR) { 479 printf("[%s] read reg[0x%02x] data error:0x%02x\n", 480 __func__, i2c->slave_reg, interrupt); 481 hdmi_writeb(hdmi, 0, HDMI_I2CM_SOFTRSTZ); 482 hdmi_writeb(hdmi, HDMI_I2CM_OPERATION_BUS_CLEAR, 483 HDMI_I2CM_OPERATION); 484 udelay(1000); 485 return -EIO; 486 } 487 488 i = 20; 489 if (read_edid) 490 for (i = 0; i < 8; i++) 491 *buf++ = hdmi_readb(hdmi, HDMI_I2CM_READ_BUFF0 + i); 492 else 493 *buf++ = hdmi_readb(hdmi, HDMI_I2CM_DATAI); 494 } 495 i2c->is_segment = false; 496 497 return 0; 498 } 499 500 static int dw_hdmi_i2c_write(struct dw_hdmi *hdmi, 501 unsigned char *buf, unsigned int length) 502 { 503 struct dw_hdmi_i2c *i2c = hdmi->i2c; 504 int i = 20; 505 u8 interrupt = 0; 506 507 if (!i2c->is_regaddr) { 508 /* Use the first write byte as register address */ 509 i2c->slave_reg = buf[0]; 510 length--; 511 buf++; 512 i2c->is_regaddr = true; 513 } 514 515 while (length--) { 516 hdmi_writeb(hdmi, *buf++, HDMI_I2CM_DATAO); 517 hdmi_writeb(hdmi, i2c->slave_reg++, HDMI_I2CM_ADDRESS); 518 hdmi_writeb(hdmi, HDMI_I2CM_OPERATION_WRITE, 519 HDMI_I2CM_OPERATION); 520 521 while (i--) { 522 udelay(1000); 523 interrupt = hdmi_readb(hdmi, HDMI_IH_I2CM_STAT0); 524 if (interrupt) 525 hdmi_writeb(hdmi, 526 interrupt, HDMI_IH_I2CM_STAT0); 527 528 if (interrupt & (m_SCDC_READREQ | 529 m_I2CM_DONE | m_I2CM_ERROR)) 530 break; 531 } 532 533 if (!interrupt) { 534 printf("[%s] i2c write reg[0x%02x] no interrupt\n", 535 __func__, i2c->slave_reg); 536 hdmi_writeb(hdmi, 0, HDMI_I2CM_SOFTRSTZ); 537 hdmi_writeb(hdmi, HDMI_I2CM_OPERATION_BUS_CLEAR, 538 HDMI_I2CM_OPERATION); 539 udelay(1000); 540 return -EAGAIN; 541 } 542 543 if ((interrupt & m_I2CM_ERROR) || (i == -1)) { 544 printf("[%s] write data error\n", __func__); 545 hdmi_writeb(hdmi, 0, HDMI_I2CM_SOFTRSTZ); 546 hdmi_writeb(hdmi, HDMI_I2CM_OPERATION_BUS_CLEAR, 547 HDMI_I2CM_OPERATION); 548 udelay(1000); 549 return -EIO; 550 } else if (interrupt & m_I2CM_DONE) { 551 printf("[%s] write offset %02x success\n", 552 __func__, i2c->slave_reg); 553 return -EAGAIN; 554 } 555 556 i = 20; 557 } 558 559 return 0; 560 } 561 562 static int dw_hdmi_i2c_xfer(struct ddc_adapter *adap, 563 struct i2c_msg *msgs, int num) 564 { 565 struct dw_hdmi *hdmi = container_of(adap, struct dw_hdmi, adap); 566 struct dw_hdmi_i2c *i2c = hdmi->i2c; 567 u8 addr = msgs[0].addr; 568 int i, ret = 0; 569 570 printf("xfer: num: %d, addr: %#x\n", num, addr); 571 for (i = 0; i < num; i++) { 572 if (msgs[i].len == 0) { 573 printf("unsupported transfer %d/%d, no data\n", 574 i + 1, num); 575 return -EOPNOTSUPP; 576 } 577 } 578 579 hdmi_writeb(hdmi, 0x00, HDMI_IH_MUTE_I2CM_STAT0); 580 581 /* Set slave device address taken from the first I2C message */ 582 if (addr == DDC_SEGMENT_ADDR && msgs[0].len == 1) 583 addr = DDC_ADDR; 584 hdmi_writeb(hdmi, addr, HDMI_I2CM_SLAVE); 585 586 /* Set slave device register address on transfer */ 587 i2c->is_regaddr = false; 588 589 /* Set segment pointer for I2C extended read mode operation */ 590 i2c->is_segment = false; 591 592 for (i = 0; i < num; i++) { 593 debug("xfer: num: %d/%d, len: %d, flags: %#x\n", 594 i + 1, num, msgs[i].len, msgs[i].flags); 595 if (msgs[i].addr == DDC_SEGMENT_ADDR && msgs[i].len == 1) { 596 i2c->is_segment = true; 597 hdmi_writeb(hdmi, DDC_SEGMENT_ADDR, HDMI_I2CM_SEGADDR); 598 hdmi_writeb(hdmi, *msgs[i].buf, HDMI_I2CM_SEGPTR); 599 } else { 600 if (msgs[i].flags & I2C_M_RD) 601 ret = dw_hdmi_i2c_read(hdmi, msgs[i].buf, 602 msgs[i].len); 603 else 604 ret = dw_hdmi_i2c_write(hdmi, msgs[i].buf, 605 msgs[i].len); 606 } 607 if (ret < 0) 608 break; 609 } 610 611 if (!ret) 612 ret = num; 613 614 /* Mute DONE and ERROR interrupts */ 615 hdmi_writeb(hdmi, HDMI_IH_I2CM_STAT0_ERROR | HDMI_IH_I2CM_STAT0_DONE, 616 HDMI_IH_MUTE_I2CM_STAT0); 617 618 return ret; 619 } 620 621 static bool hdmi_phy_wait_i2c_done(struct dw_hdmi *hdmi, int msec) 622 { 623 u32 val; 624 625 while ((val = hdmi_readb(hdmi, HDMI_IH_I2CMPHY_STAT0) & 0x3) == 0) { 626 if (msec-- == 0) 627 return false; 628 udelay(1000); 629 } 630 hdmi_writeb(hdmi, val, HDMI_IH_I2CMPHY_STAT0); 631 632 return true; 633 } 634 635 static void dw_hdmi_phy_i2c_write(struct dw_hdmi *hdmi, unsigned short data, 636 unsigned char addr) 637 { 638 hdmi_writeb(hdmi, 0xFF, HDMI_IH_I2CMPHY_STAT0); 639 hdmi_writeb(hdmi, addr, HDMI_PHY_I2CM_ADDRESS_ADDR); 640 hdmi_writeb(hdmi, (unsigned char)(data >> 8), 641 HDMI_PHY_I2CM_DATAO_1_ADDR); 642 hdmi_writeb(hdmi, (unsigned char)(data >> 0), 643 HDMI_PHY_I2CM_DATAO_0_ADDR); 644 hdmi_writeb(hdmi, HDMI_PHY_I2CM_OPERATION_ADDR_WRITE, 645 HDMI_PHY_I2CM_OPERATION_ADDR); 646 hdmi_phy_wait_i2c_done(hdmi, 1000); 647 } 648 649 static void dw_hdmi_phy_enable_powerdown(struct dw_hdmi *hdmi, bool enable) 650 { 651 hdmi_mask_writeb(hdmi, !enable, HDMI_PHY_CONF0, 652 HDMI_PHY_CONF0_PDZ_OFFSET, 653 HDMI_PHY_CONF0_PDZ_MASK); 654 } 655 656 static void dw_hdmi_phy_enable_tmds(struct dw_hdmi *hdmi, u8 enable) 657 { 658 hdmi_mask_writeb(hdmi, enable, HDMI_PHY_CONF0, 659 HDMI_PHY_CONF0_ENTMDS_OFFSET, 660 HDMI_PHY_CONF0_ENTMDS_MASK); 661 } 662 663 static void dw_hdmi_phy_enable_svsret(struct dw_hdmi *hdmi, u8 enable) 664 { 665 hdmi_mask_writeb(hdmi, enable, HDMI_PHY_CONF0, 666 HDMI_PHY_CONF0_SVSRET_OFFSET, 667 HDMI_PHY_CONF0_SVSRET_MASK); 668 } 669 670 static void dw_hdmi_phy_gen2_pddq(struct dw_hdmi *hdmi, u8 enable) 671 { 672 hdmi_mask_writeb(hdmi, enable, HDMI_PHY_CONF0, 673 HDMI_PHY_CONF0_GEN2_PDDQ_OFFSET, 674 HDMI_PHY_CONF0_GEN2_PDDQ_MASK); 675 } 676 677 static void dw_hdmi_phy_gen2_txpwron(struct dw_hdmi *hdmi, u8 enable) 678 { 679 hdmi_mask_writeb(hdmi, enable, HDMI_PHY_CONF0, 680 HDMI_PHY_CONF0_GEN2_TXPWRON_OFFSET, 681 HDMI_PHY_CONF0_GEN2_TXPWRON_MASK); 682 } 683 684 static void dw_hdmi_phy_sel_data_en_pol(struct dw_hdmi *hdmi, u8 enable) 685 { 686 hdmi_mask_writeb(hdmi, enable, HDMI_PHY_CONF0, 687 HDMI_PHY_CONF0_SELDATAENPOL_OFFSET, 688 HDMI_PHY_CONF0_SELDATAENPOL_MASK); 689 } 690 691 static void dw_hdmi_phy_sel_interface_control(struct dw_hdmi *hdmi, u8 enable) 692 { 693 hdmi_mask_writeb(hdmi, enable, HDMI_PHY_CONF0, 694 HDMI_PHY_CONF0_SELDIPIF_OFFSET, 695 HDMI_PHY_CONF0_SELDIPIF_MASK); 696 } 697 698 static void dw_hdmi_phy_power_off(struct dw_hdmi *hdmi) 699 { 700 const struct dw_hdmi_phy_data *phy = hdmi->phy.data; 701 unsigned int i; 702 u16 val; 703 704 if (phy->gen == 1) { 705 dw_hdmi_phy_enable_tmds(hdmi, 0); 706 dw_hdmi_phy_enable_powerdown(hdmi, true); 707 return; 708 } 709 710 dw_hdmi_phy_gen2_txpwron(hdmi, 0); 711 712 /* 713 * Wait for TX_PHY_LOCK to be deasserted to indicate that the PHY went 714 * to low power mode. 715 */ 716 for (i = 0; i < 5; ++i) { 717 val = hdmi_readb(hdmi, HDMI_PHY_STAT0); 718 if (!(val & HDMI_PHY_TX_PHY_LOCK)) 719 break; 720 721 udelay(2000); 722 } 723 724 if (val & HDMI_PHY_TX_PHY_LOCK) 725 printf("PHY failed to power down\n"); 726 else 727 printf("PHY powered down in %u iterations\n", i); 728 729 dw_hdmi_phy_gen2_pddq(hdmi, 1); 730 } 731 732 static int dw_hdmi_phy_power_on(struct dw_hdmi *hdmi) 733 { 734 const struct dw_hdmi_phy_data *phy = hdmi->phy.data; 735 unsigned int i; 736 u8 val; 737 738 if (phy->gen == 1) { 739 dw_hdmi_phy_enable_powerdown(hdmi, false); 740 741 /* Toggle TMDS enable. */ 742 dw_hdmi_phy_enable_tmds(hdmi, 0); 743 dw_hdmi_phy_enable_tmds(hdmi, 1); 744 return 0; 745 } 746 747 dw_hdmi_phy_gen2_txpwron(hdmi, 1); 748 dw_hdmi_phy_gen2_pddq(hdmi, 0); 749 750 /* Wait for PHY PLL lock */ 751 for (i = 0; i < 5; ++i) { 752 val = hdmi_readb(hdmi, HDMI_PHY_STAT0) & HDMI_PHY_TX_PHY_LOCK; 753 if (val) 754 break; 755 756 udelay(2000); 757 } 758 759 if (!val) { 760 printf("PHY PLL failed to lock\n"); 761 return -ETIMEDOUT; 762 } 763 printf("PHY PLL locked %u iterations\n", i); 764 765 return 0; 766 } 767 768 /* 769 * PHY configuration function for the DWC HDMI 3D TX PHY. Based on the available 770 * information the DWC MHL PHY has the same register layout and is thus also 771 * supported by this function. 772 */ 773 static 774 int hdmi_phy_configure_dwc_hdmi_3d_tx(struct dw_hdmi *hdmi, 775 const struct dw_hdmi_plat_data *pdata, 776 unsigned long mpixelclock) 777 { 778 const struct dw_hdmi_mpll_config *mpll_config = pdata->mpll_cfg; 779 const struct dw_hdmi_curr_ctrl *curr_ctrl = pdata->cur_ctr; 780 const struct dw_hdmi_phy_config *phy_config = pdata->phy_config; 781 unsigned int tmdsclock = hdmi->hdmi_data.video_mode.mtmdsclock; 782 unsigned int depth = 783 hdmi_bus_fmt_color_depth(hdmi->hdmi_data.enc_out_bus_format); 784 785 if (hdmi_bus_fmt_is_yuv420(hdmi->hdmi_data.enc_out_bus_format) && 786 pdata->mpll_cfg_420) 787 mpll_config = pdata->mpll_cfg_420; 788 789 /* PLL/MPLL Cfg - always match on final entry */ 790 for (; mpll_config->mpixelclock != ~0UL; mpll_config++) 791 if (mpixelclock <= mpll_config->mpixelclock) 792 break; 793 794 for (; curr_ctrl->mpixelclock != ~0UL; curr_ctrl++) 795 if (tmdsclock <= curr_ctrl->mpixelclock) 796 break; 797 798 for (; phy_config->mpixelclock != ~0UL; phy_config++) 799 if (tmdsclock <= phy_config->mpixelclock) 800 break; 801 802 if (mpll_config->mpixelclock == ~0UL || 803 curr_ctrl->mpixelclock == ~0UL || 804 phy_config->mpixelclock == ~0UL) 805 return -EINVAL; 806 807 if (!hdmi_bus_fmt_is_yuv422(hdmi->hdmi_data.enc_out_bus_format)) 808 depth = fls(depth - 8); 809 else 810 depth = 0; 811 if (depth) 812 depth--; 813 814 dw_hdmi_phy_i2c_write(hdmi, mpll_config->res[depth].cpce, 815 HDMI_3D_TX_PHY_CPCE_CTRL); 816 817 dw_hdmi_phy_i2c_write(hdmi, mpll_config->res[depth].gmp, 818 HDMI_3D_TX_PHY_GMPCTRL); 819 dw_hdmi_phy_i2c_write(hdmi, curr_ctrl->curr[depth], 820 HDMI_3D_TX_PHY_CURRCTRL); 821 822 dw_hdmi_phy_i2c_write(hdmi, 0, HDMI_3D_TX_PHY_PLLPHBYCTRL); 823 dw_hdmi_phy_i2c_write(hdmi, HDMI_3D_TX_PHY_MSM_CTRL_CKO_SEL_FB_CLK, 824 HDMI_3D_TX_PHY_MSM_CTRL); 825 826 dw_hdmi_phy_i2c_write(hdmi, phy_config->term, HDMI_3D_TX_PHY_TXTERM); 827 dw_hdmi_phy_i2c_write(hdmi, phy_config->sym_ctr, 828 HDMI_3D_TX_PHY_CKSYMTXCTRL); 829 dw_hdmi_phy_i2c_write(hdmi, phy_config->vlev_ctr, 830 HDMI_3D_TX_PHY_VLEVCTRL); 831 832 return 0; 833 } 834 835 static const struct dw_hdmi_phy_data dw_hdmi_phys[] = { 836 { 837 .type = DW_HDMI_PHY_DWC_HDMI_TX_PHY, 838 .name = "DWC HDMI TX PHY", 839 .gen = 1, 840 }, { 841 .type = DW_HDMI_PHY_DWC_MHL_PHY_HEAC, 842 .name = "DWC MHL PHY + HEAC PHY", 843 .gen = 2, 844 .has_svsret = true, 845 .configure = hdmi_phy_configure_dwc_hdmi_3d_tx, 846 }, { 847 .type = DW_HDMI_PHY_DWC_MHL_PHY, 848 .name = "DWC MHL PHY", 849 .gen = 2, 850 .has_svsret = true, 851 .configure = hdmi_phy_configure_dwc_hdmi_3d_tx, 852 }, { 853 .type = DW_HDMI_PHY_DWC_HDMI_3D_TX_PHY_HEAC, 854 .name = "DWC HDMI 3D TX PHY + HEAC PHY", 855 .gen = 2, 856 .configure = hdmi_phy_configure_dwc_hdmi_3d_tx, 857 }, { 858 .type = DW_HDMI_PHY_DWC_HDMI_3D_TX_PHY, 859 .name = "DWC HDMI 3D TX PHY", 860 .gen = 2, 861 .configure = hdmi_phy_configure_dwc_hdmi_3d_tx, 862 }, { 863 .type = DW_HDMI_PHY_DWC_HDMI20_TX_PHY, 864 .name = "DWC HDMI 2.0 TX PHY", 865 .gen = 2, 866 .has_svsret = true, 867 .configure = hdmi_phy_configure_dwc_hdmi_3d_tx, 868 }, { 869 .type = DW_HDMI_PHY_VENDOR_PHY, 870 .name = "Vendor PHY", 871 } 872 }; 873 874 static int rockchip_dw_hdmi_scrambling_enable(struct dw_hdmi *hdmi, 875 int enable) 876 { 877 u8 stat; 878 879 drm_scdc_readb(&hdmi->adap, SCDC_TMDS_CONFIG, &stat); 880 881 if (stat < 0) { 882 debug("Failed to read tmds config\n"); 883 return false; 884 } 885 886 if (enable == 1) { 887 /* Write on Rx the bit Scrambling_Enable, register 0x20 */ 888 stat |= SCDC_SCRAMBLING_ENABLE; 889 drm_scdc_writeb(&hdmi->adap, SCDC_TMDS_CONFIG, stat); 890 /* TMDS software reset request */ 891 hdmi_writeb(hdmi, (u8)~HDMI_MC_SWRSTZ_TMDSSWRST_REQ, 892 HDMI_MC_SWRSTZ); 893 /* Enable/Disable Scrambling */ 894 hdmi_writeb(hdmi, 1, HDMI_FC_SCRAMBLER_CTRL); 895 } else { 896 /* Enable/Disable Scrambling */ 897 hdmi_writeb(hdmi, 0, HDMI_FC_SCRAMBLER_CTRL); 898 /* TMDS software reset request */ 899 hdmi_writeb(hdmi, (u8)~HDMI_MC_SWRSTZ_TMDSSWRST_REQ, 900 HDMI_MC_SWRSTZ); 901 /* Write on Rx the bit Scrambling_Enable, register 0x20 */ 902 stat &= ~SCDC_SCRAMBLING_ENABLE; 903 drm_scdc_writeb(&hdmi->adap, SCDC_TMDS_CONFIG, stat); 904 } 905 906 return 0; 907 } 908 909 static void rockchip_dw_hdmi_scdc_set_tmds_rate(struct dw_hdmi *hdmi) 910 { 911 u8 stat; 912 913 drm_scdc_readb(&hdmi->adap, SCDC_TMDS_CONFIG, &stat); 914 if (hdmi->hdmi_data.video_mode.mtmdsclock > 340000000) 915 stat |= SCDC_TMDS_BIT_CLOCK_RATIO_BY_40; 916 else 917 stat &= ~SCDC_TMDS_BIT_CLOCK_RATIO_BY_40; 918 drm_scdc_writeb(&hdmi->adap, SCDC_TMDS_CONFIG, stat); 919 } 920 921 static int hdmi_phy_configure(struct dw_hdmi *hdmi) 922 { 923 const struct dw_hdmi_phy_data *phy = hdmi->phy.data; 924 const struct dw_hdmi_plat_data *pdata = hdmi->plat_data; 925 unsigned long mpixelclock = hdmi->hdmi_data.video_mode.mpixelclock; 926 unsigned long mtmdsclock = hdmi->hdmi_data.video_mode.mtmdsclock; 927 int ret; 928 929 dw_hdmi_phy_power_off(hdmi); 930 931 /* Control for TMDS Bit Period/TMDS Clock-Period Ratio */ 932 if (hdmi->edid_data.display_info.hdmi.scdc.supported) 933 rockchip_dw_hdmi_scdc_set_tmds_rate(hdmi); 934 935 /* Leave low power consumption mode by asserting SVSRET. */ 936 if (phy->has_svsret) 937 dw_hdmi_phy_enable_svsret(hdmi, 1); 938 939 /* PHY reset. The reset signal is active high on Gen2 PHYs. */ 940 hdmi_writeb(hdmi, HDMI_MC_PHYRSTZ_PHYRSTZ, HDMI_MC_PHYRSTZ); 941 hdmi_writeb(hdmi, 0, HDMI_MC_PHYRSTZ); 942 943 hdmi_writeb(hdmi, HDMI_MC_HEACPHY_RST_ASSERT, HDMI_MC_HEACPHY_RST); 944 945 hdmi_phy_test_clear(hdmi, 1); 946 hdmi_writeb(hdmi, HDMI_PHY_I2CM_SLAVE_ADDR_PHY_GEN2, 947 HDMI_PHY_I2CM_SLAVE_ADDR); 948 hdmi_phy_test_clear(hdmi, 0); 949 950 /* Write to the PHY as configured by the platform */ 951 if (pdata->configure_phy) 952 ret = pdata->configure_phy(hdmi, pdata, mpixelclock); 953 else 954 ret = phy->configure(hdmi, pdata, mpixelclock); 955 if (ret) { 956 printf("PHY configuration failed (clock %lu)\n", 957 mpixelclock); 958 return ret; 959 } 960 961 /* Wait for resuming transmission of TMDS clock and data */ 962 if (mtmdsclock > 340000000) 963 mdelay(100); 964 965 return dw_hdmi_phy_power_on(hdmi); 966 } 967 968 static int dw_hdmi_phy_init(struct rockchip_connector *conn, struct dw_hdmi *hdmi, 969 void *data) 970 { 971 int i, ret; 972 973 /* HDMI Phy spec says to do the phy initialization sequence twice */ 974 for (i = 0; i < 2; i++) { 975 dw_hdmi_phy_sel_data_en_pol(hdmi, 1); 976 dw_hdmi_phy_sel_interface_control(hdmi, 0); 977 ret = hdmi_phy_configure(hdmi); 978 if (ret) 979 return ret; 980 } 981 982 return 0; 983 } 984 985 static void dw_hdmi_phy_disable(struct rockchip_connector *conn, struct dw_hdmi *hdmi, 986 void *data) 987 { 988 dw_hdmi_phy_power_off(hdmi); 989 } 990 991 static enum drm_connector_status 992 dw_hdmi_phy_read_hpd(struct dw_hdmi *hdmi, void *data) 993 { 994 return hdmi_readb(hdmi, HDMI_PHY_STAT0) & HDMI_PHY_HPD ? 995 connector_status_connected : connector_status_disconnected; 996 } 997 998 static const struct dw_hdmi_phy_ops dw_hdmi_synopsys_phy_ops = { 999 .init = dw_hdmi_phy_init, 1000 .disable = dw_hdmi_phy_disable, 1001 .read_hpd = dw_hdmi_phy_read_hpd, 1002 }; 1003 1004 static int dw_hdmi_detect_phy(struct dw_hdmi *hdmi) 1005 { 1006 unsigned int i; 1007 u8 phy_type; 1008 1009 phy_type = hdmi_readb(hdmi, HDMI_CONFIG2_ID); 1010 1011 /* 1012 * RK3228 and RK3328 phy_type is DW_HDMI_PHY_DWC_HDMI20_TX_PHY, 1013 * but it has a vedor phy. 1014 */ 1015 if (phy_type == DW_HDMI_PHY_VENDOR_PHY || 1016 hdmi->dev_type == RK3528_HDMI || 1017 hdmi->dev_type == RK3328_HDMI || 1018 hdmi->dev_type == RK3228_HDMI) { 1019 /* Vendor PHYs require support from the glue layer. */ 1020 if (!hdmi->plat_data->phy_ops || !hdmi->plat_data->phy_name) { 1021 printf( 1022 "Vendor HDMI PHY not supported by glue layer\n"); 1023 return -ENODEV; 1024 } 1025 1026 hdmi->phy.ops = hdmi->plat_data->phy_ops; 1027 hdmi->phy.data = hdmi->plat_data->phy_data; 1028 hdmi->phy.name = hdmi->plat_data->phy_name; 1029 return 0; 1030 } 1031 1032 /* Synopsys PHYs are handled internally. */ 1033 for (i = 0; i < ARRAY_SIZE(dw_hdmi_phys); ++i) { 1034 if (dw_hdmi_phys[i].type == phy_type) { 1035 hdmi->phy.ops = &dw_hdmi_synopsys_phy_ops; 1036 hdmi->phy.name = dw_hdmi_phys[i].name; 1037 hdmi->phy.data = (void *)&dw_hdmi_phys[i]; 1038 1039 if (!dw_hdmi_phys[i].configure && 1040 !hdmi->plat_data->configure_phy) { 1041 printf("%s requires platform support\n", 1042 hdmi->phy.name); 1043 return -ENODEV; 1044 } 1045 1046 return 0; 1047 } 1048 } 1049 1050 printf("Unsupported HDMI PHY type (%02x)\n", phy_type); 1051 return -ENODEV; 1052 } 1053 1054 static unsigned int 1055 hdmi_get_tmdsclock(struct dw_hdmi *hdmi, unsigned long mpixelclock) 1056 { 1057 unsigned int tmdsclock = mpixelclock; 1058 unsigned int depth = 1059 hdmi_bus_fmt_color_depth(hdmi->hdmi_data.enc_out_bus_format); 1060 1061 if (!hdmi_bus_fmt_is_yuv422(hdmi->hdmi_data.enc_out_bus_format)) { 1062 switch (depth) { 1063 case 16: 1064 tmdsclock = mpixelclock * 2; 1065 break; 1066 case 12: 1067 tmdsclock = mpixelclock * 3 / 2; 1068 break; 1069 case 10: 1070 tmdsclock = mpixelclock * 5 / 4; 1071 break; 1072 default: 1073 break; 1074 } 1075 } 1076 1077 return tmdsclock; 1078 } 1079 1080 static void hdmi_av_composer(struct dw_hdmi *hdmi, 1081 const struct drm_display_mode *mode) 1082 { 1083 u8 bytes = 0, inv_val = 0; 1084 struct hdmi_vmode *vmode = &hdmi->hdmi_data.video_mode; 1085 struct drm_hdmi_info *hdmi_info = &hdmi->edid_data.display_info.hdmi; 1086 int hblank, vblank, h_de_hs, v_de_vs, hsync_len, vsync_len; 1087 unsigned int hdisplay, vdisplay; 1088 1089 vmode->mpixelclock = mode->crtc_clock * 1000; 1090 if ((mode->flags & DRM_MODE_FLAG_3D_MASK) == 1091 DRM_MODE_FLAG_3D_FRAME_PACKING) 1092 vmode->mpixelclock *= 2; 1093 vmode->mtmdsclock = hdmi_get_tmdsclock(hdmi, vmode->mpixelclock); 1094 if (hdmi_bus_fmt_is_yuv420(hdmi->hdmi_data.enc_out_bus_format)) 1095 vmode->mtmdsclock /= 2; 1096 printf("final pixclk = %d tmdsclk = %d\n", 1097 vmode->mpixelclock, vmode->mtmdsclock); 1098 1099 /* Set up HDMI_FC_INVIDCONF 1100 * Some display equipments require that the interval 1101 * between Video Data and Data island must be at least 58 pixels, 1102 * and fc_invidconf.HDCP_keepout set (1'b1) can meet the requirement. 1103 */ 1104 inv_val = HDMI_FC_INVIDCONF_HDCP_KEEPOUT_ACTIVE; 1105 1106 inv_val |= mode->flags & DRM_MODE_FLAG_PVSYNC ? 1107 HDMI_FC_INVIDCONF_VSYNC_IN_POLARITY_ACTIVE_HIGH : 1108 HDMI_FC_INVIDCONF_VSYNC_IN_POLARITY_ACTIVE_LOW; 1109 1110 inv_val |= mode->flags & DRM_MODE_FLAG_PHSYNC ? 1111 HDMI_FC_INVIDCONF_HSYNC_IN_POLARITY_ACTIVE_HIGH : 1112 HDMI_FC_INVIDCONF_HSYNC_IN_POLARITY_ACTIVE_LOW; 1113 1114 inv_val |= (vmode->mdataenablepolarity ? 1115 HDMI_FC_INVIDCONF_DE_IN_POLARITY_ACTIVE_HIGH : 1116 HDMI_FC_INVIDCONF_DE_IN_POLARITY_ACTIVE_LOW); 1117 1118 if (hdmi->vic == 39) 1119 inv_val |= HDMI_FC_INVIDCONF_R_V_BLANK_IN_OSC_ACTIVE_HIGH; 1120 else 1121 inv_val |= mode->flags & DRM_MODE_FLAG_INTERLACE ? 1122 HDMI_FC_INVIDCONF_R_V_BLANK_IN_OSC_ACTIVE_HIGH : 1123 HDMI_FC_INVIDCONF_R_V_BLANK_IN_OSC_ACTIVE_LOW; 1124 1125 inv_val |= mode->flags & DRM_MODE_FLAG_INTERLACE ? 1126 HDMI_FC_INVIDCONF_IN_I_P_INTERLACED : 1127 HDMI_FC_INVIDCONF_IN_I_P_PROGRESSIVE; 1128 1129 inv_val |= hdmi->sink_is_hdmi ? 1130 HDMI_FC_INVIDCONF_DVI_MODEZ_HDMI_MODE : 1131 HDMI_FC_INVIDCONF_DVI_MODEZ_DVI_MODE; 1132 1133 hdmi_writeb(hdmi, inv_val, HDMI_FC_INVIDCONF); 1134 1135 hdisplay = mode->hdisplay; 1136 hblank = mode->htotal - mode->hdisplay; 1137 h_de_hs = mode->hsync_start - mode->hdisplay; 1138 hsync_len = mode->hsync_end - mode->hsync_start; 1139 1140 /* 1141 * When we're setting a YCbCr420 mode, we need 1142 * to adjust the horizontal timing to suit. 1143 */ 1144 if (hdmi_bus_fmt_is_yuv420(hdmi->hdmi_data.enc_out_bus_format)) { 1145 hdisplay /= 2; 1146 hblank /= 2; 1147 h_de_hs /= 2; 1148 hsync_len /= 2; 1149 } 1150 1151 vdisplay = mode->vdisplay; 1152 vblank = mode->vtotal - mode->vdisplay; 1153 v_de_vs = mode->vsync_start - mode->vdisplay; 1154 vsync_len = mode->vsync_end - mode->vsync_start; 1155 1156 /* 1157 * When we're setting an interlaced mode, we need 1158 * to adjust the vertical timing to suit. 1159 */ 1160 if (mode->flags & DRM_MODE_FLAG_INTERLACE) { 1161 vdisplay /= 2; 1162 vblank /= 2; 1163 v_de_vs /= 2; 1164 vsync_len /= 2; 1165 } else if ((mode->flags & DRM_MODE_FLAG_3D_MASK) == 1166 DRM_MODE_FLAG_3D_FRAME_PACKING) { 1167 vdisplay += mode->vtotal; 1168 } 1169 1170 /* Scrambling Control */ 1171 if (hdmi_info->scdc.supported) { 1172 if (vmode->mtmdsclock > 340000000 || 1173 (hdmi_info->scdc.scrambling.low_rates && 1174 hdmi->scramble_low_rates)) { 1175 drm_scdc_readb(&hdmi->adap, SCDC_SINK_VERSION, &bytes); 1176 drm_scdc_writeb(&hdmi->adap, SCDC_SOURCE_VERSION, 1177 bytes); 1178 rockchip_dw_hdmi_scrambling_enable(hdmi, 1); 1179 } else { 1180 rockchip_dw_hdmi_scrambling_enable(hdmi, 0); 1181 } 1182 } 1183 1184 /* Set up horizontal active pixel width */ 1185 hdmi_writeb(hdmi, hdisplay >> 8, HDMI_FC_INHACTV1); 1186 hdmi_writeb(hdmi, hdisplay, HDMI_FC_INHACTV0); 1187 1188 /* Set up vertical active lines */ 1189 hdmi_writeb(hdmi, vdisplay >> 8, HDMI_FC_INVACTV1); 1190 hdmi_writeb(hdmi, vdisplay, HDMI_FC_INVACTV0); 1191 1192 /* Set up horizontal blanking pixel region width */ 1193 hdmi_writeb(hdmi, hblank >> 8, HDMI_FC_INHBLANK1); 1194 hdmi_writeb(hdmi, hblank, HDMI_FC_INHBLANK0); 1195 1196 /* Set up vertical blanking pixel region width */ 1197 hdmi_writeb(hdmi, vblank, HDMI_FC_INVBLANK); 1198 1199 /* Set up HSYNC active edge delay width (in pixel clks) */ 1200 hdmi_writeb(hdmi, h_de_hs >> 8, HDMI_FC_HSYNCINDELAY1); 1201 hdmi_writeb(hdmi, h_de_hs, HDMI_FC_HSYNCINDELAY0); 1202 1203 /* Set up VSYNC active edge delay (in lines) */ 1204 hdmi_writeb(hdmi, v_de_vs, HDMI_FC_VSYNCINDELAY); 1205 1206 /* Set up HSYNC active pulse width (in pixel clks) */ 1207 hdmi_writeb(hdmi, hsync_len >> 8, HDMI_FC_HSYNCINWIDTH1); 1208 hdmi_writeb(hdmi, hsync_len, HDMI_FC_HSYNCINWIDTH0); 1209 1210 /* Set up VSYNC active edge delay (in lines) */ 1211 hdmi_writeb(hdmi, vsync_len, HDMI_FC_VSYNCINWIDTH); 1212 } 1213 1214 static void dw_hdmi_update_csc_coeffs(struct dw_hdmi *hdmi) 1215 { 1216 const u16 (*csc_coeff)[3][4] = &csc_coeff_default; 1217 unsigned i; 1218 u32 csc_scale = 1; 1219 int enc_out_rgb, enc_in_rgb; 1220 1221 enc_out_rgb = hdmi_bus_fmt_is_rgb(hdmi->hdmi_data.enc_out_bus_format); 1222 enc_in_rgb = hdmi_bus_fmt_is_rgb(hdmi->hdmi_data.enc_in_bus_format); 1223 1224 if (is_color_space_conversion(hdmi)) { 1225 if (enc_out_rgb && enc_in_rgb) { 1226 csc_coeff = &csc_coeff_full_to_limited; 1227 csc_scale = 0; 1228 } else if (enc_out_rgb) { 1229 if (hdmi->hdmi_data.enc_out_encoding == 1230 V4L2_YCBCR_ENC_601) 1231 csc_coeff = &csc_coeff_rgb_out_eitu601; 1232 else 1233 csc_coeff = &csc_coeff_rgb_out_eitu709; 1234 } else if (enc_in_rgb) { 1235 if (hdmi->hdmi_data.enc_out_encoding == 1236 V4L2_YCBCR_ENC_601) 1237 csc_coeff = &csc_coeff_rgb_in_eitu601; 1238 else 1239 csc_coeff = &csc_coeff_rgb_in_eitu709; 1240 csc_scale = 0; 1241 } 1242 } 1243 1244 /* The CSC registers are sequential, alternating MSB then LSB */ 1245 for (i = 0; i < ARRAY_SIZE(csc_coeff_default[0]); i++) { 1246 u16 coeff_a = (*csc_coeff)[0][i]; 1247 u16 coeff_b = (*csc_coeff)[1][i]; 1248 u16 coeff_c = (*csc_coeff)[2][i]; 1249 1250 hdmi_writeb(hdmi, coeff_a & 0xff, HDMI_CSC_COEF_A1_LSB + i * 2); 1251 hdmi_writeb(hdmi, coeff_a >> 8, HDMI_CSC_COEF_A1_MSB + i * 2); 1252 hdmi_writeb(hdmi, coeff_b & 0xff, HDMI_CSC_COEF_B1_LSB + i * 2); 1253 hdmi_writeb(hdmi, coeff_b >> 8, HDMI_CSC_COEF_B1_MSB + i * 2); 1254 hdmi_writeb(hdmi, coeff_c & 0xff, HDMI_CSC_COEF_C1_LSB + i * 2); 1255 hdmi_writeb(hdmi, coeff_c >> 8, HDMI_CSC_COEF_C1_MSB + i * 2); 1256 } 1257 1258 hdmi_modb(hdmi, csc_scale, HDMI_CSC_SCALE_CSCSCALE_MASK, 1259 HDMI_CSC_SCALE); 1260 } 1261 1262 static int is_color_space_interpolation(struct dw_hdmi *hdmi) 1263 { 1264 if (!hdmi_bus_fmt_is_yuv422(hdmi->hdmi_data.enc_in_bus_format)) 1265 return 0; 1266 1267 if (hdmi_bus_fmt_is_rgb(hdmi->hdmi_data.enc_out_bus_format) || 1268 hdmi_bus_fmt_is_yuv444(hdmi->hdmi_data.enc_out_bus_format)) 1269 return 1; 1270 1271 return 0; 1272 } 1273 1274 static void hdmi_video_csc(struct dw_hdmi *hdmi) 1275 { 1276 int color_depth = 0; 1277 int interpolation = HDMI_CSC_CFG_INTMODE_DISABLE; 1278 int decimation = 0; 1279 1280 /* YCC422 interpolation to 444 mode */ 1281 if (is_color_space_interpolation(hdmi)) 1282 interpolation = HDMI_CSC_CFG_INTMODE_CHROMA_INT_FORMULA1; 1283 else if (is_color_space_decimation(hdmi)) 1284 decimation = HDMI_CSC_CFG_DECMODE_CHROMA_INT_FORMULA3; 1285 1286 switch (hdmi_bus_fmt_color_depth(hdmi->hdmi_data.enc_out_bus_format)) { 1287 case 8: 1288 color_depth = HDMI_CSC_SCALE_CSC_COLORDE_PTH_24BPP; 1289 break; 1290 case 10: 1291 color_depth = HDMI_CSC_SCALE_CSC_COLORDE_PTH_30BPP; 1292 break; 1293 case 12: 1294 color_depth = HDMI_CSC_SCALE_CSC_COLORDE_PTH_36BPP; 1295 break; 1296 case 16: 1297 color_depth = HDMI_CSC_SCALE_CSC_COLORDE_PTH_48BPP; 1298 break; 1299 1300 default: 1301 return; 1302 } 1303 1304 /* Configure the CSC registers */ 1305 hdmi_writeb(hdmi, interpolation | decimation, HDMI_CSC_CFG); 1306 hdmi_modb(hdmi, color_depth, HDMI_CSC_SCALE_CSC_COLORDE_PTH_MASK, 1307 HDMI_CSC_SCALE); 1308 1309 dw_hdmi_update_csc_coeffs(hdmi); 1310 } 1311 1312 static void dw_hdmi_enable_video_path(struct dw_hdmi *hdmi) 1313 { 1314 u8 clkdis; 1315 1316 /* control period minimum duration */ 1317 hdmi_writeb(hdmi, 12, HDMI_FC_CTRLDUR); 1318 hdmi_writeb(hdmi, 32, HDMI_FC_EXCTRLDUR); 1319 hdmi_writeb(hdmi, 1, HDMI_FC_EXCTRLSPAC); 1320 1321 /* Set to fill TMDS data channels */ 1322 hdmi_writeb(hdmi, 0x0B, HDMI_FC_CH0PREAM); 1323 hdmi_writeb(hdmi, 0x16, HDMI_FC_CH1PREAM); 1324 hdmi_writeb(hdmi, 0x21, HDMI_FC_CH2PREAM); 1325 1326 /* Enable pixel clock and tmds data path */ 1327 clkdis = 0x7F; 1328 clkdis &= ~HDMI_MC_CLKDIS_PIXELCLK_DISABLE; 1329 hdmi_writeb(hdmi, clkdis, HDMI_MC_CLKDIS); 1330 1331 clkdis &= ~HDMI_MC_CLKDIS_TMDSCLK_DISABLE; 1332 hdmi_writeb(hdmi, clkdis, HDMI_MC_CLKDIS); 1333 1334 /* Enable csc path */ 1335 if (is_color_space_conversion(hdmi)) { 1336 clkdis &= ~HDMI_MC_CLKDIS_CSCCLK_DISABLE; 1337 hdmi_writeb(hdmi, clkdis, HDMI_MC_CLKDIS); 1338 } 1339 1340 /* Enable pixel repetition path */ 1341 if (hdmi->hdmi_data.video_mode.mpixelrepetitioninput) { 1342 clkdis &= ~HDMI_MC_CLKDIS_PREPCLK_DISABLE; 1343 hdmi_writeb(hdmi, clkdis, HDMI_MC_CLKDIS); 1344 } 1345 1346 /* Enable color space conversion if needed */ 1347 if (is_color_space_conversion(hdmi)) 1348 hdmi_writeb(hdmi, HDMI_MC_FLOWCTRL_FEED_THROUGH_OFF_CSC_IN_PATH, 1349 HDMI_MC_FLOWCTRL); 1350 else 1351 hdmi_writeb(hdmi, HDMI_MC_FLOWCTRL_FEED_THROUGH_OFF_CSC_BYPASS, 1352 HDMI_MC_FLOWCTRL); 1353 } 1354 1355 static void dw_hdmi_clear_overflow(struct dw_hdmi *hdmi) 1356 { 1357 unsigned int count; 1358 unsigned int i; 1359 u8 val; 1360 1361 /* 1362 * Under some circumstances the Frame Composer arithmetic unit can miss 1363 * an FC register write due to being busy processing the previous one. 1364 * The issue can be worked around by issuing a TMDS software reset and 1365 * then write one of the FC registers several times. 1366 * 1367 * The number of iterations matters and depends on the HDMI TX revision 1368 * (and possibly on the platform). So far only i.MX6Q (v1.30a) and 1369 * i.MX6DL (v1.31a) have been identified as needing the workaround, with 1370 * 4 and 1 iterations respectively. 1371 */ 1372 1373 switch (hdmi->version) { 1374 case 0x130a: 1375 count = 4; 1376 break; 1377 case 0x131a: 1378 case 0x200a: 1379 case 0x201a: 1380 case 0x211a: 1381 count = 1; 1382 break; 1383 default: 1384 return; 1385 } 1386 1387 /* TMDS software reset */ 1388 hdmi_writeb(hdmi, (u8)~HDMI_MC_SWRSTZ_TMDSSWRST_REQ, HDMI_MC_SWRSTZ); 1389 1390 val = hdmi_readb(hdmi, HDMI_FC_INVIDCONF); 1391 for (i = 0; i < count; i++) 1392 hdmi_writeb(hdmi, val, HDMI_FC_INVIDCONF); 1393 } 1394 1395 static void hdmi_disable_overflow_interrupts(struct dw_hdmi *hdmi) 1396 { 1397 hdmi_writeb(hdmi, HDMI_IH_MUTE_FC_STAT2_OVERFLOW_MASK, 1398 HDMI_IH_MUTE_FC_STAT2); 1399 } 1400 1401 static void hdmi_video_packetize(struct dw_hdmi *hdmi) 1402 { 1403 unsigned int color_depth = 0; 1404 unsigned int remap_size = HDMI_VP_REMAP_YCC422_16bit; 1405 unsigned int output_select = HDMI_VP_CONF_OUTPUT_SELECTOR_PP; 1406 struct hdmi_data_info *hdmi_data = &hdmi->hdmi_data; 1407 u8 val, vp_conf; 1408 1409 if (hdmi_bus_fmt_is_rgb(hdmi->hdmi_data.enc_out_bus_format) || 1410 hdmi_bus_fmt_is_yuv444(hdmi->hdmi_data.enc_out_bus_format) || 1411 hdmi_bus_fmt_is_yuv420(hdmi->hdmi_data.enc_out_bus_format)) { 1412 switch (hdmi_bus_fmt_color_depth( 1413 hdmi->hdmi_data.enc_out_bus_format)) { 1414 case 8: 1415 color_depth = 0; 1416 output_select = HDMI_VP_CONF_OUTPUT_SELECTOR_BYPASS; 1417 break; 1418 case 10: 1419 color_depth = 5; 1420 break; 1421 case 12: 1422 color_depth = 6; 1423 break; 1424 case 16: 1425 color_depth = 7; 1426 break; 1427 default: 1428 output_select = HDMI_VP_CONF_OUTPUT_SELECTOR_BYPASS; 1429 } 1430 } else if (hdmi_bus_fmt_is_yuv422(hdmi->hdmi_data.enc_out_bus_format)) { 1431 switch (hdmi_bus_fmt_color_depth( 1432 hdmi->hdmi_data.enc_out_bus_format)) { 1433 case 0: 1434 case 8: 1435 remap_size = HDMI_VP_REMAP_YCC422_16bit; 1436 break; 1437 case 10: 1438 remap_size = HDMI_VP_REMAP_YCC422_20bit; 1439 break; 1440 case 12: 1441 remap_size = HDMI_VP_REMAP_YCC422_24bit; 1442 break; 1443 1444 default: 1445 return; 1446 } 1447 output_select = HDMI_VP_CONF_OUTPUT_SELECTOR_YCC422; 1448 } else { 1449 return; 1450 } 1451 1452 /* set the packetizer registers */ 1453 val = (color_depth << HDMI_VP_PR_CD_COLOR_DEPTH_OFFSET) & 1454 HDMI_VP_PR_CD_COLOR_DEPTH_MASK; 1455 hdmi_writeb(hdmi, val, HDMI_VP_PR_CD); 1456 1457 hdmi_modb(hdmi, HDMI_VP_STUFF_PR_STUFFING_STUFFING_MODE, 1458 HDMI_VP_STUFF_PR_STUFFING_MASK, HDMI_VP_STUFF); 1459 1460 /* Data from pixel repeater block */ 1461 if (hdmi_data->pix_repet_factor > 0) { 1462 vp_conf = HDMI_VP_CONF_PR_EN_ENABLE | 1463 HDMI_VP_CONF_BYPASS_SELECT_PIX_REPEATER; 1464 } else { /* data from packetizer block */ 1465 vp_conf = HDMI_VP_CONF_PR_EN_DISABLE | 1466 HDMI_VP_CONF_BYPASS_SELECT_VID_PACKETIZER; 1467 } 1468 1469 hdmi_modb(hdmi, vp_conf, 1470 HDMI_VP_CONF_PR_EN_MASK | 1471 HDMI_VP_CONF_BYPASS_SELECT_MASK, HDMI_VP_CONF); 1472 1473 hdmi_modb(hdmi, 0, HDMI_VP_STUFF_IDEFAULT_PHASE_MASK, 1474 HDMI_VP_STUFF); 1475 1476 hdmi_writeb(hdmi, remap_size, HDMI_VP_REMAP); 1477 1478 if (output_select == HDMI_VP_CONF_OUTPUT_SELECTOR_PP) { 1479 vp_conf = HDMI_VP_CONF_BYPASS_EN_DISABLE | 1480 HDMI_VP_CONF_PP_EN_ENABLE | 1481 HDMI_VP_CONF_YCC422_EN_DISABLE; 1482 } else if (output_select == HDMI_VP_CONF_OUTPUT_SELECTOR_YCC422) { 1483 vp_conf = HDMI_VP_CONF_BYPASS_EN_DISABLE | 1484 HDMI_VP_CONF_PP_EN_DISABLE | 1485 HDMI_VP_CONF_YCC422_EN_ENABLE; 1486 } else if (output_select == HDMI_VP_CONF_OUTPUT_SELECTOR_BYPASS) { 1487 vp_conf = HDMI_VP_CONF_BYPASS_EN_ENABLE | 1488 HDMI_VP_CONF_PP_EN_DISABLE | 1489 HDMI_VP_CONF_YCC422_EN_DISABLE; 1490 } else { 1491 return; 1492 } 1493 1494 hdmi_modb(hdmi, vp_conf, 1495 HDMI_VP_CONF_BYPASS_EN_MASK | HDMI_VP_CONF_PP_EN_ENMASK | 1496 HDMI_VP_CONF_YCC422_EN_MASK, HDMI_VP_CONF); 1497 1498 hdmi_modb(hdmi, HDMI_VP_STUFF_PP_STUFFING_STUFFING_MODE | 1499 HDMI_VP_STUFF_YCC422_STUFFING_STUFFING_MODE, 1500 HDMI_VP_STUFF_PP_STUFFING_MASK | 1501 HDMI_VP_STUFF_YCC422_STUFFING_MASK, HDMI_VP_STUFF); 1502 1503 hdmi_modb(hdmi, output_select, HDMI_VP_CONF_OUTPUT_SELECTOR_MASK, 1504 HDMI_VP_CONF); 1505 } 1506 1507 static void hdmi_video_sample(struct dw_hdmi *hdmi) 1508 { 1509 int color_format = 0; 1510 u8 val; 1511 1512 switch (hdmi->hdmi_data.enc_in_bus_format) { 1513 case MEDIA_BUS_FMT_RGB888_1X24: 1514 color_format = 0x01; 1515 break; 1516 case MEDIA_BUS_FMT_RGB101010_1X30: 1517 color_format = 0x03; 1518 break; 1519 case MEDIA_BUS_FMT_RGB121212_1X36: 1520 color_format = 0x05; 1521 break; 1522 case MEDIA_BUS_FMT_RGB161616_1X48: 1523 color_format = 0x07; 1524 break; 1525 1526 case MEDIA_BUS_FMT_YUV8_1X24: 1527 case MEDIA_BUS_FMT_UYYVYY8_0_5X24: 1528 color_format = 0x09; 1529 break; 1530 case MEDIA_BUS_FMT_YUV10_1X30: 1531 case MEDIA_BUS_FMT_UYYVYY10_0_5X30: 1532 color_format = 0x0B; 1533 break; 1534 case MEDIA_BUS_FMT_YUV12_1X36: 1535 case MEDIA_BUS_FMT_UYYVYY12_0_5X36: 1536 color_format = 0x0D; 1537 break; 1538 case MEDIA_BUS_FMT_YUV16_1X48: 1539 case MEDIA_BUS_FMT_UYYVYY16_0_5X48: 1540 color_format = 0x0F; 1541 break; 1542 1543 case MEDIA_BUS_FMT_UYVY8_1X16: 1544 color_format = 0x16; 1545 break; 1546 case MEDIA_BUS_FMT_UYVY10_1X20: 1547 color_format = 0x14; 1548 break; 1549 case MEDIA_BUS_FMT_UYVY12_1X24: 1550 color_format = 0x12; 1551 break; 1552 1553 default: 1554 return; 1555 } 1556 1557 val = HDMI_TX_INVID0_INTERNAL_DE_GENERATOR_DISABLE | 1558 ((color_format << HDMI_TX_INVID0_VIDEO_MAPPING_OFFSET) & 1559 HDMI_TX_INVID0_VIDEO_MAPPING_MASK); 1560 hdmi_writeb(hdmi, val, HDMI_TX_INVID0); 1561 1562 /* Enable TX stuffing: When DE is inactive, fix the output data to 0 */ 1563 val = HDMI_TX_INSTUFFING_BDBDATA_STUFFING_ENABLE | 1564 HDMI_TX_INSTUFFING_RCRDATA_STUFFING_ENABLE | 1565 HDMI_TX_INSTUFFING_GYDATA_STUFFING_ENABLE; 1566 hdmi_writeb(hdmi, val, HDMI_TX_INSTUFFING); 1567 hdmi_writeb(hdmi, 0x0, HDMI_TX_GYDATA0); 1568 hdmi_writeb(hdmi, 0x0, HDMI_TX_GYDATA1); 1569 hdmi_writeb(hdmi, 0x0, HDMI_TX_RCRDATA0); 1570 hdmi_writeb(hdmi, 0x0, HDMI_TX_RCRDATA1); 1571 hdmi_writeb(hdmi, 0x0, HDMI_TX_BCBDATA0); 1572 hdmi_writeb(hdmi, 0x0, HDMI_TX_BCBDATA1); 1573 } 1574 1575 static void dw_hdmi_disable(struct rockchip_connector *conn, struct dw_hdmi *hdmi, 1576 struct display_state *state) 1577 { 1578 if (hdmi->phy.enabled) { 1579 hdmi->phy.ops->disable(conn, hdmi, state); 1580 hdmi->phy.enabled = false; 1581 } 1582 } 1583 1584 static void hdmi_config_AVI(struct dw_hdmi *hdmi, struct drm_display_mode *mode) 1585 { 1586 struct hdmi_avi_infoframe frame; 1587 u8 val; 1588 bool is_hdmi2 = false; 1589 enum hdmi_quantization_range rgb_quant_range = 1590 hdmi->hdmi_data.quant_range; 1591 1592 if (hdmi_bus_fmt_is_yuv420(hdmi->hdmi_data.enc_out_bus_format) || 1593 hdmi->edid_data.display_info.hdmi.scdc.supported) 1594 is_hdmi2 = true; 1595 /* Initialise info frame from DRM mode */ 1596 drm_hdmi_avi_infoframe_from_display_mode(&frame, mode, is_hdmi2); 1597 1598 /* 1599 * Ignore monitor selectable quantization, use quantization set 1600 * by the user 1601 */ 1602 drm_hdmi_avi_infoframe_quant_range(&frame, mode, rgb_quant_range, 1603 true); 1604 if (hdmi_bus_fmt_is_yuv444(hdmi->hdmi_data.enc_out_bus_format)) 1605 frame.colorspace = HDMI_COLORSPACE_YUV444; 1606 else if (hdmi_bus_fmt_is_yuv422(hdmi->hdmi_data.enc_out_bus_format)) 1607 frame.colorspace = HDMI_COLORSPACE_YUV422; 1608 else if (hdmi_bus_fmt_is_yuv420(hdmi->hdmi_data.enc_out_bus_format)) 1609 frame.colorspace = HDMI_COLORSPACE_YUV420; 1610 else 1611 frame.colorspace = HDMI_COLORSPACE_RGB; 1612 1613 /* Set up colorimetry */ 1614 switch (hdmi->hdmi_data.enc_out_encoding) { 1615 case V4L2_YCBCR_ENC_601: 1616 if (hdmi->hdmi_data.enc_in_encoding == V4L2_YCBCR_ENC_XV601) 1617 frame.colorimetry = HDMI_COLORIMETRY_EXTENDED; 1618 else 1619 frame.colorimetry = HDMI_COLORIMETRY_ITU_601; 1620 frame.extended_colorimetry = 1621 HDMI_EXTENDED_COLORIMETRY_XV_YCC_601; 1622 break; 1623 case V4L2_YCBCR_ENC_709: 1624 if (hdmi->hdmi_data.enc_in_encoding == V4L2_YCBCR_ENC_XV709) 1625 frame.colorimetry = HDMI_COLORIMETRY_EXTENDED; 1626 else 1627 frame.colorimetry = HDMI_COLORIMETRY_ITU_709; 1628 frame.extended_colorimetry = 1629 HDMI_EXTENDED_COLORIMETRY_XV_YCC_709; 1630 break; 1631 default: /* Carries no data */ 1632 frame.colorimetry = HDMI_COLORIMETRY_ITU_601; 1633 frame.extended_colorimetry = 1634 HDMI_EXTENDED_COLORIMETRY_XV_YCC_601; 1635 break; 1636 } 1637 1638 frame.scan_mode = HDMI_SCAN_MODE_NONE; 1639 1640 /* 1641 * The Designware IP uses a different byte format from standard 1642 * AVI info frames, though generally the bits are in the correct 1643 * bytes. 1644 */ 1645 1646 /* 1647 * AVI data byte 1 differences: Colorspace in bits 0,1,7 rather than 1648 * 5,6,7, active aspect present in bit 6 rather than 4. 1649 */ 1650 val = (frame.scan_mode & 3) << 4 | (frame.colorspace & 0x3); 1651 if (frame.active_aspect & 15) 1652 val |= HDMI_FC_AVICONF0_ACTIVE_FMT_INFO_PRESENT; 1653 if (frame.top_bar || frame.bottom_bar) 1654 val |= HDMI_FC_AVICONF0_BAR_DATA_HORIZ_BAR; 1655 if (frame.left_bar || frame.right_bar) 1656 val |= HDMI_FC_AVICONF0_BAR_DATA_VERT_BAR; 1657 hdmi_writeb(hdmi, val, HDMI_FC_AVICONF0); 1658 1659 /* AVI data byte 2 differences: none */ 1660 val = ((frame.colorimetry & 0x3) << 6) | 1661 ((frame.picture_aspect & 0x3) << 4) | 1662 (frame.active_aspect & 0xf); 1663 hdmi_writeb(hdmi, val, HDMI_FC_AVICONF1); 1664 1665 /* AVI data byte 3 differences: none */ 1666 val = ((frame.extended_colorimetry & 0x7) << 4) | 1667 ((frame.quantization_range & 0x3) << 2) | 1668 (frame.nups & 0x3); 1669 if (frame.itc) 1670 val |= HDMI_FC_AVICONF2_IT_CONTENT_VALID; 1671 hdmi_writeb(hdmi, val, HDMI_FC_AVICONF2); 1672 1673 /* AVI data byte 4 differences: none */ 1674 val = frame.video_code & 0x7f; 1675 hdmi_writeb(hdmi, val, HDMI_FC_AVIVID); 1676 1677 /* AVI Data Byte 5- set up input and output pixel repetition */ 1678 val = (((hdmi->hdmi_data.video_mode.mpixelrepetitioninput + 1) << 1679 HDMI_FC_PRCONF_INCOMING_PR_FACTOR_OFFSET) & 1680 HDMI_FC_PRCONF_INCOMING_PR_FACTOR_MASK) | 1681 ((hdmi->hdmi_data.video_mode.mpixelrepetitionoutput << 1682 HDMI_FC_PRCONF_OUTPUT_PR_FACTOR_OFFSET) & 1683 HDMI_FC_PRCONF_OUTPUT_PR_FACTOR_MASK); 1684 hdmi_writeb(hdmi, val, HDMI_FC_PRCONF); 1685 1686 /* 1687 * AVI data byte 5 differences: content type in 0,1 rather than 4,5, 1688 * ycc range in bits 2,3 rather than 6,7 1689 */ 1690 val = ((frame.ycc_quantization_range & 0x3) << 2) | 1691 (frame.content_type & 0x3); 1692 hdmi_writeb(hdmi, val, HDMI_FC_AVICONF3); 1693 1694 /* AVI Data Bytes 6-13 */ 1695 hdmi_writeb(hdmi, frame.top_bar & 0xff, HDMI_FC_AVIETB0); 1696 hdmi_writeb(hdmi, (frame.top_bar >> 8) & 0xff, HDMI_FC_AVIETB1); 1697 hdmi_writeb(hdmi, frame.bottom_bar & 0xff, HDMI_FC_AVISBB0); 1698 hdmi_writeb(hdmi, (frame.bottom_bar >> 8) & 0xff, HDMI_FC_AVISBB1); 1699 hdmi_writeb(hdmi, frame.left_bar & 0xff, HDMI_FC_AVIELB0); 1700 hdmi_writeb(hdmi, (frame.left_bar >> 8) & 0xff, HDMI_FC_AVIELB1); 1701 hdmi_writeb(hdmi, frame.right_bar & 0xff, HDMI_FC_AVISRB0); 1702 hdmi_writeb(hdmi, (frame.right_bar >> 8) & 0xff, HDMI_FC_AVISRB1); 1703 } 1704 1705 static void hdmi_config_vendor_specific_infoframe(struct dw_hdmi *hdmi, 1706 struct drm_display_mode *mode) 1707 { 1708 struct hdmi_vendor_infoframe frame; 1709 u8 buffer[10]; 1710 ssize_t err; 1711 1712 /* Disable HDMI vendor specific infoframe send */ 1713 hdmi_mask_writeb(hdmi, 0, HDMI_FC_DATAUTO0, HDMI_FC_DATAUTO0_VSD_OFFSET, 1714 HDMI_FC_DATAUTO0_VSD_MASK); 1715 1716 err = drm_hdmi_vendor_infoframe_from_display_mode(&frame, mode); 1717 if (err < 0) 1718 /* 1719 * Going into that statement does not means vendor infoframe 1720 * fails. It just informed us that vendor infoframe is not 1721 * needed for the selected mode. Only 4k or stereoscopic 3D 1722 * mode requires vendor infoframe. So just simply return. 1723 */ 1724 return; 1725 1726 err = hdmi_vendor_infoframe_pack(&frame, buffer, sizeof(buffer)); 1727 if (err < 0) { 1728 printf("Failed to pack vendor infoframe: %zd\n", err); 1729 return; 1730 } 1731 1732 /* Set the length of HDMI vendor specific InfoFrame payload */ 1733 hdmi_writeb(hdmi, buffer[2], HDMI_FC_VSDSIZE); 1734 1735 /* Set 24bit IEEE Registration Identifier */ 1736 hdmi_writeb(hdmi, buffer[4], HDMI_FC_VSDIEEEID0); 1737 hdmi_writeb(hdmi, buffer[5], HDMI_FC_VSDIEEEID1); 1738 hdmi_writeb(hdmi, buffer[6], HDMI_FC_VSDIEEEID2); 1739 1740 /* Set HDMI_Video_Format and HDMI_VIC/3D_Structure */ 1741 hdmi_writeb(hdmi, buffer[7], HDMI_FC_VSDPAYLOAD0); 1742 hdmi_writeb(hdmi, buffer[8], HDMI_FC_VSDPAYLOAD1); 1743 1744 if (frame.s3d_struct >= HDMI_3D_STRUCTURE_SIDE_BY_SIDE_HALF) 1745 hdmi_writeb(hdmi, buffer[9], HDMI_FC_VSDPAYLOAD2); 1746 1747 /* Packet frame interpolation */ 1748 hdmi_writeb(hdmi, 1, HDMI_FC_DATAUTO1); 1749 1750 /* Auto packets per frame and line spacing */ 1751 hdmi_writeb(hdmi, 0x11, HDMI_FC_DATAUTO2); 1752 1753 /* Configures the Frame Composer On RDRB mode */ 1754 hdmi_mask_writeb(hdmi, 1, HDMI_FC_DATAUTO0, HDMI_FC_DATAUTO0_VSD_OFFSET, 1755 HDMI_FC_DATAUTO0_VSD_MASK); 1756 } 1757 1758 static void hdmi_set_cts_n(struct dw_hdmi *hdmi, unsigned int cts, 1759 unsigned int n) 1760 { 1761 /* Must be set/cleared first */ 1762 hdmi_modb(hdmi, 0, HDMI_AUD_CTS3_CTS_MANUAL, HDMI_AUD_CTS3); 1763 1764 /* nshift factor = 0 */ 1765 hdmi_modb(hdmi, 0, HDMI_AUD_CTS3_N_SHIFT_MASK, HDMI_AUD_CTS3); 1766 1767 hdmi_writeb(hdmi, ((cts >> 16) & HDMI_AUD_CTS3_AUDCTS19_16_MASK) | 1768 HDMI_AUD_CTS3_CTS_MANUAL, HDMI_AUD_CTS3); 1769 hdmi_writeb(hdmi, (cts >> 8) & 0xff, HDMI_AUD_CTS2); 1770 hdmi_writeb(hdmi, cts & 0xff, HDMI_AUD_CTS1); 1771 1772 hdmi_writeb(hdmi, (n >> 16) & 0x0f, HDMI_AUD_N3); 1773 hdmi_writeb(hdmi, (n >> 8) & 0xff, HDMI_AUD_N2); 1774 hdmi_writeb(hdmi, n & 0xff, HDMI_AUD_N1); 1775 } 1776 1777 static int hdmi_match_tmds_n_table(struct dw_hdmi *hdmi, 1778 unsigned long pixel_clk, 1779 unsigned long freq) 1780 { 1781 const struct dw_hdmi_plat_data *plat_data = hdmi->plat_data; 1782 const struct dw_hdmi_audio_tmds_n *tmds_n = NULL; 1783 int i; 1784 1785 if (plat_data->tmds_n_table) { 1786 for (i = 0; plat_data->tmds_n_table[i].tmds != 0; i++) { 1787 if (pixel_clk == plat_data->tmds_n_table[i].tmds) { 1788 tmds_n = &plat_data->tmds_n_table[i]; 1789 break; 1790 } 1791 } 1792 } 1793 1794 if (!tmds_n) { 1795 for (i = 0; common_tmds_n_table[i].tmds != 0; i++) { 1796 if (pixel_clk == common_tmds_n_table[i].tmds) { 1797 tmds_n = &common_tmds_n_table[i]; 1798 break; 1799 } 1800 } 1801 } 1802 1803 if (!tmds_n) 1804 return -ENOENT; 1805 1806 switch (freq) { 1807 case 32000: 1808 return tmds_n->n_32k; 1809 case 44100: 1810 case 88200: 1811 case 176400: 1812 return (freq / 44100) * tmds_n->n_44k1; 1813 case 48000: 1814 case 96000: 1815 case 192000: 1816 return (freq / 48000) * tmds_n->n_48k; 1817 default: 1818 return -ENOENT; 1819 } 1820 } 1821 1822 static u64 hdmi_audio_math_diff(unsigned int freq, unsigned int n, 1823 unsigned int pixel_clk) 1824 { 1825 u64 final, diff; 1826 u64 cts; 1827 1828 final = (u64)pixel_clk * n; 1829 1830 cts = final; 1831 do_div(cts, 128 * freq); 1832 1833 diff = final - (u64)cts * (128 * freq); 1834 1835 return diff; 1836 } 1837 1838 static unsigned int hdmi_compute_n(struct dw_hdmi *hdmi, 1839 unsigned long pixel_clk, 1840 unsigned long freq) 1841 { 1842 unsigned int min_n = DIV_ROUND_UP((128 * freq), 1500); 1843 unsigned int max_n = (128 * freq) / 300; 1844 unsigned int ideal_n = (128 * freq) / 1000; 1845 unsigned int best_n_distance = ideal_n; 1846 unsigned int best_n = 0; 1847 u64 best_diff = U64_MAX; 1848 int n; 1849 1850 /* If the ideal N could satisfy the audio math, then just take it */ 1851 if (hdmi_audio_math_diff(freq, ideal_n, pixel_clk) == 0) 1852 return ideal_n; 1853 1854 for (n = min_n; n <= max_n; n++) { 1855 u64 diff = hdmi_audio_math_diff(freq, n, pixel_clk); 1856 1857 if (diff < best_diff || (diff == best_diff && 1858 abs(n - ideal_n) < best_n_distance)) { 1859 best_n = n; 1860 best_diff = diff; 1861 best_n_distance = abs(best_n - ideal_n); 1862 } 1863 1864 /* 1865 * The best N already satisfy the audio math, and also be 1866 * the closest value to ideal N, so just cut the loop. 1867 */ 1868 if ((best_diff == 0) && (abs(n - ideal_n) > best_n_distance)) 1869 break; 1870 } 1871 1872 return best_n; 1873 } 1874 1875 static unsigned int hdmi_find_n(struct dw_hdmi *hdmi, unsigned long pixel_clk, 1876 unsigned long sample_rate) 1877 { 1878 int n; 1879 1880 n = hdmi_match_tmds_n_table(hdmi, pixel_clk, sample_rate); 1881 if (n > 0) 1882 return n; 1883 1884 printf("Rate %lu missing; compute N dynamically\n", 1885 pixel_clk); 1886 1887 return hdmi_compute_n(hdmi, pixel_clk, sample_rate); 1888 } 1889 1890 static 1891 void hdmi_set_clk_regenerator(struct dw_hdmi *hdmi, unsigned long pixel_clk, 1892 unsigned int sample_rate) 1893 { 1894 unsigned long ftdms = pixel_clk; 1895 unsigned int n, cts; 1896 u64 tmp; 1897 1898 n = hdmi_find_n(hdmi, pixel_clk, sample_rate); 1899 1900 /* 1901 * Compute the CTS value from the N value. Note that CTS and N 1902 * can be up to 20 bits in total, so we need 64-bit math. Also 1903 * note that our TDMS clock is not fully accurate; it is accurate 1904 * to kHz. This can introduce an unnecessary remainder in the 1905 * calculation below, so we don't try to warn about that. 1906 */ 1907 tmp = (u64)ftdms * n; 1908 do_div(tmp, 128 * sample_rate); 1909 cts = tmp; 1910 1911 printf("%s: fs=%uHz ftdms=%lu.%03luMHz N=%d cts=%d\n", __func__, 1912 sample_rate, ftdms / 1000000, (ftdms / 1000) % 1000, n, cts); 1913 1914 hdmi->audio_n = n; 1915 hdmi->audio_cts = cts; 1916 hdmi_set_cts_n(hdmi, cts, hdmi->audio_enable ? n : 0); 1917 } 1918 1919 static void hdmi_clk_regenerator_update_pixel_clock(struct dw_hdmi *hdmi) 1920 { 1921 hdmi_set_clk_regenerator(hdmi, hdmi->hdmi_data.video_mode.mtmdsclock, 1922 hdmi->sample_rate); 1923 } 1924 1925 static void hdmi_enable_audio_clk(struct dw_hdmi *hdmi) 1926 { 1927 hdmi_modb(hdmi, 0, HDMI_MC_CLKDIS_AUDCLK_DISABLE, HDMI_MC_CLKDIS); 1928 } 1929 1930 void dw_hdmi_set_sample_rate(struct dw_hdmi *hdmi, unsigned int rate) 1931 { 1932 hdmi->sample_rate = rate; 1933 hdmi_set_clk_regenerator(hdmi, hdmi->hdmi_data.video_mode.mtmdsclock, 1934 hdmi->sample_rate); 1935 } 1936 1937 static int dw_hdmi_hdcp_load_key(struct dw_hdmi *hdmi) 1938 { 1939 int i, j, ret, val; 1940 struct hdcp_keys *hdcp_keys; 1941 1942 val = sizeof(*hdcp_keys); 1943 hdcp_keys = malloc(val); 1944 if (!hdcp_keys) 1945 return -ENOMEM; 1946 1947 memset(hdcp_keys, 0, val); 1948 1949 ret = vendor_storage_read(HDMI_HDCP1X_ID, hdcp_keys, val); 1950 if (ret < val) { 1951 printf("HDCP: read size %d\n", ret); 1952 free(hdcp_keys); 1953 return -EINVAL; 1954 } 1955 1956 if (hdcp_keys->KSV[0] == 0x00 && 1957 hdcp_keys->KSV[1] == 0x00 && 1958 hdcp_keys->KSV[2] == 0x00 && 1959 hdcp_keys->KSV[3] == 0x00 && 1960 hdcp_keys->KSV[4] == 0x00) { 1961 printf("HDCP: Invalid hdcp key\n"); 1962 free(hdcp_keys); 1963 return -EINVAL; 1964 } 1965 1966 /* Disable decryption logic */ 1967 hdmi_writeb(hdmi, 0, HDMI_HDCPREG_RMCTL); 1968 /* Poll untile DPK write is allowed */ 1969 do { 1970 val = hdmi_readb(hdmi, HDMI_HDCPREG_RMSTS); 1971 } while ((val & DPK_WR_OK_STS) == 0); 1972 1973 hdmi_writeb(hdmi, 0, HDMI_HDCPREG_DPK6); 1974 hdmi_writeb(hdmi, 0, HDMI_HDCPREG_DPK5); 1975 1976 /* The useful data in ksv should be 5 byte */ 1977 for (i = 4; i >= 0; i--) 1978 hdmi_writeb(hdmi, hdcp_keys->KSV[i], HDMI_HDCPREG_DPK0 + i); 1979 /* Poll untile DPK write is allowed */ 1980 do { 1981 val = hdmi_readb(hdmi, HDMI_HDCPREG_RMSTS); 1982 } while ((val & DPK_WR_OK_STS) == 0); 1983 1984 /* Enable decryption logic */ 1985 hdmi_writeb(hdmi, 1, HDMI_HDCPREG_RMCTL); 1986 hdmi_writeb(hdmi, hdcp_keys->seeds[0], HDMI_HDCPREG_SEED1); 1987 hdmi_writeb(hdmi, hdcp_keys->seeds[1], HDMI_HDCPREG_SEED0); 1988 1989 /* Write encrypt device private key */ 1990 for (i = 0; i < DW_HDMI_HDCP_DPK_LEN - 6; i += 7) { 1991 for (j = 6; j >= 0; j--) 1992 hdmi_writeb(hdmi, hdcp_keys->devicekey[i + j], 1993 HDMI_HDCPREG_DPK0 + j); 1994 do { 1995 val = hdmi_readb(hdmi, HDMI_HDCPREG_RMSTS); 1996 } while ((val & DPK_WR_OK_STS) == 0); 1997 } 1998 1999 free(hdcp_keys); 2000 return 0; 2001 } 2002 2003 static void hdmi_tx_hdcp_config(struct dw_hdmi *hdmi, 2004 const struct drm_display_mode *mode) 2005 { 2006 u8 vsync_pol, hsync_pol, data_pol, hdmi_dvi; 2007 2008 if (!hdmi->hdcp1x_enable) 2009 return; 2010 2011 /* Configure the video polarity */ 2012 vsync_pol = mode->flags & DRM_MODE_FLAG_PVSYNC ? 2013 HDMI_A_VIDPOLCFG_VSYNCPOL_ACTIVE_HIGH : 2014 HDMI_A_VIDPOLCFG_VSYNCPOL_ACTIVE_LOW; 2015 hsync_pol = mode->flags & DRM_MODE_FLAG_PHSYNC ? 2016 HDMI_A_VIDPOLCFG_HSYNCPOL_ACTIVE_HIGH : 2017 HDMI_A_VIDPOLCFG_HSYNCPOL_ACTIVE_LOW; 2018 data_pol = HDMI_A_VIDPOLCFG_DATAENPOL_ACTIVE_HIGH; 2019 hdmi_modb(hdmi, vsync_pol | hsync_pol | data_pol, 2020 HDMI_A_VIDPOLCFG_VSYNCPOL_MASK | 2021 HDMI_A_VIDPOLCFG_HSYNCPOL_MASK | 2022 HDMI_A_VIDPOLCFG_DATAENPOL_MASK, 2023 HDMI_A_VIDPOLCFG); 2024 2025 /* Config the display mode */ 2026 hdmi_dvi = hdmi->sink_is_hdmi ? HDMI_A_HDCPCFG0_HDMIDVI_HDMI : 2027 HDMI_A_HDCPCFG0_HDMIDVI_DVI; 2028 hdmi_modb(hdmi, hdmi_dvi, HDMI_A_HDCPCFG0_HDMIDVI_MASK, 2029 HDMI_A_HDCPCFG0); 2030 2031 if (!(hdmi_readb(hdmi, HDMI_HDCPREG_RMSTS) & 0x3f)) 2032 dw_hdmi_hdcp_load_key(hdmi); 2033 2034 hdmi_modb(hdmi, HDMI_FC_INVIDCONF_HDCP_KEEPOUT_ACTIVE, 2035 HDMI_FC_INVIDCONF_HDCP_KEEPOUT_MASK, 2036 HDMI_FC_INVIDCONF); 2037 2038 if (hdmi_readb(hdmi, HDMI_CONFIG1_ID) & HDMI_A_HDCP22_MASK) { 2039 hdmi_modb(hdmi, HDMI_HDCP2_OVR_ENABLE | 2040 HDMI_HDCP2_FORCE_DISABLE, 2041 HDMI_HDCP2_OVR_EN_MASK | 2042 HDMI_HDCP2_FORCE_MASK, 2043 HDMI_HDCP2REG_CTRL); 2044 hdmi_writeb(hdmi, 0xff, HDMI_HDCP2REG_MASK); 2045 hdmi_writeb(hdmi, 0xff, HDMI_HDCP2REG_MUTE); 2046 } 2047 2048 hdmi_writeb(hdmi, 0x40, HDMI_A_OESSWCFG); 2049 hdmi_modb(hdmi, HDMI_A_HDCPCFG0_BYPENCRYPTION_DISABLE | 2050 HDMI_A_HDCPCFG0_EN11FEATURE_DISABLE | 2051 HDMI_A_HDCPCFG0_SYNCRICHECK_ENABLE, 2052 HDMI_A_HDCPCFG0_BYPENCRYPTION_MASK | 2053 HDMI_A_HDCPCFG0_EN11FEATURE_MASK | 2054 HDMI_A_HDCPCFG0_SYNCRICHECK_MASK, HDMI_A_HDCPCFG0); 2055 2056 hdmi_modb(hdmi, HDMI_A_HDCPCFG1_ENCRYPTIONDISABLE_ENABLE | 2057 HDMI_A_HDCPCFG1_PH2UPSHFTENC_ENABLE, 2058 HDMI_A_HDCPCFG1_ENCRYPTIONDISABLE_MASK | 2059 HDMI_A_HDCPCFG1_PH2UPSHFTENC_MASK, HDMI_A_HDCPCFG1); 2060 2061 /* Reset HDCP Engine */ 2062 if (hdmi_readb(hdmi, HDMI_MC_CLKDIS) & HDMI_MC_CLKDIS_HDCPCLK_MASK) { 2063 hdmi_modb(hdmi, HDMI_A_HDCPCFG1_SWRESET_ASSERT, 2064 HDMI_A_HDCPCFG1_SWRESET_MASK, HDMI_A_HDCPCFG1); 2065 } 2066 2067 hdmi_writeb(hdmi, 0x00, HDMI_A_APIINTMSK); 2068 hdmi_modb(hdmi, HDMI_A_HDCPCFG0_RXDETECT_ENABLE, 2069 HDMI_A_HDCPCFG0_RXDETECT_MASK, HDMI_A_HDCPCFG0); 2070 2071 hdmi_modb(hdmi, HDMI_MC_CLKDIS_HDCPCLK_ENABLE, 2072 HDMI_MC_CLKDIS_HDCPCLK_MASK, HDMI_MC_CLKDIS); 2073 2074 printf("%s success\n", __func__); 2075 } 2076 2077 static int dw_hdmi_setup(struct dw_hdmi *hdmi, 2078 struct rockchip_connector *conn, 2079 struct drm_display_mode *mode, 2080 struct display_state *state) 2081 { 2082 int ret; 2083 void *data = hdmi->plat_data->phy_data; 2084 2085 hdmi_disable_overflow_interrupts(hdmi); 2086 if (!hdmi->vic) 2087 printf("Non-CEA mode used in HDMI\n"); 2088 else 2089 printf("CEA mode used vic=%d\n", hdmi->vic); 2090 2091 if (hdmi->plat_data->get_enc_out_encoding) 2092 hdmi->hdmi_data.enc_out_encoding = 2093 hdmi->plat_data->get_enc_out_encoding(data); 2094 else if (hdmi->vic == 6 || hdmi->vic == 7 || 2095 hdmi->vic == 21 || hdmi->vic == 22 || 2096 hdmi->vic == 2 || hdmi->vic == 3 || 2097 hdmi->vic == 17 || hdmi->vic == 18) 2098 hdmi->hdmi_data.enc_out_encoding = V4L2_YCBCR_ENC_601; 2099 else 2100 hdmi->hdmi_data.enc_out_encoding = V4L2_YCBCR_ENC_709; 2101 2102 if (mode->flags & DRM_MODE_FLAG_DBLCLK) { 2103 hdmi->hdmi_data.video_mode.mpixelrepetitionoutput = 1; 2104 hdmi->hdmi_data.video_mode.mpixelrepetitioninput = 1; 2105 } else { 2106 hdmi->hdmi_data.video_mode.mpixelrepetitionoutput = 0; 2107 hdmi->hdmi_data.video_mode.mpixelrepetitioninput = 0; 2108 } 2109 2110 /* TOFIX: Get input encoding from plat data or fallback to none */ 2111 if (hdmi->plat_data->get_enc_in_encoding) 2112 hdmi->hdmi_data.enc_in_encoding = 2113 hdmi->plat_data->get_enc_in_encoding(data); 2114 else if (hdmi->plat_data->input_bus_encoding) 2115 hdmi->hdmi_data.enc_in_encoding = 2116 hdmi->plat_data->input_bus_encoding; 2117 else 2118 hdmi->hdmi_data.enc_in_encoding = V4L2_YCBCR_ENC_DEFAULT; 2119 2120 if (hdmi->plat_data->get_quant_range) 2121 hdmi->hdmi_data.quant_range = 2122 hdmi->plat_data->get_quant_range(data); 2123 else 2124 hdmi->hdmi_data.quant_range = HDMI_QUANTIZATION_RANGE_DEFAULT; 2125 2126 /* 2127 * According to the dw-hdmi specification 6.4.2 2128 * vp_pr_cd[3:0]: 2129 * 0000b: No pixel repetition (pixel sent only once) 2130 * 0001b: Pixel sent two times (pixel repeated once) 2131 */ 2132 hdmi->hdmi_data.pix_repet_factor = 2133 (mode->flags & DRM_MODE_FLAG_DBLCLK) ? 1 : 0; 2134 hdmi->hdmi_data.video_mode.mdataenablepolarity = true; 2135 2136 /* HDMI Initialization Step B.1 */ 2137 hdmi_av_composer(hdmi, mode); 2138 2139 /* HDMI Initialization Step B.2 */ 2140 ret = hdmi->phy.ops->init(conn, hdmi, state); 2141 if (ret) 2142 return ret; 2143 hdmi->phy.enabled = true; 2144 2145 /* HDMI Initializateion Step B.3 */ 2146 dw_hdmi_enable_video_path(hdmi); 2147 2148 /* HDMI Initialization Step E - Configure audio */ 2149 if (hdmi->sink_has_audio) { 2150 printf("sink has audio support\n"); 2151 hdmi_clk_regenerator_update_pixel_clock(hdmi); 2152 hdmi_enable_audio_clk(hdmi); 2153 } 2154 2155 /* not for DVI mode */ 2156 if (hdmi->sink_is_hdmi) { 2157 /* HDMI Initialization Step F - Configure AVI InfoFrame */ 2158 hdmi_config_AVI(hdmi, mode); 2159 hdmi_config_vendor_specific_infoframe(hdmi, mode); 2160 hdmi_modb(hdmi, HDMI_A_HDCPCFG0_HDMIDVI_HDMI, 2161 HDMI_A_HDCPCFG0_HDMIDVI_MASK, 2162 HDMI_A_HDCPCFG0); 2163 } else { 2164 hdmi_modb(hdmi, HDMI_A_HDCPCFG0_HDMIDVI_DVI, 2165 HDMI_A_HDCPCFG0_HDMIDVI_MASK, 2166 HDMI_A_HDCPCFG0); 2167 printf("%s DVI mode\n", __func__); 2168 } 2169 2170 hdmi_video_packetize(hdmi); 2171 hdmi_video_csc(hdmi); 2172 hdmi_video_sample(hdmi); 2173 hdmi_tx_hdcp_config(hdmi, mode); 2174 dw_hdmi_clear_overflow(hdmi); 2175 2176 return 0; 2177 } 2178 2179 int dw_hdmi_detect_hotplug(struct dw_hdmi *hdmi, 2180 struct display_state *state) 2181 { 2182 return hdmi->phy.ops->read_hpd(hdmi, state); 2183 } 2184 2185 static int dw_hdmi_set_reg_wr(struct dw_hdmi *hdmi) 2186 { 2187 switch (hdmi->io_width) { 2188 case 4: 2189 hdmi->write = dw_hdmi_writel; 2190 hdmi->read = dw_hdmi_readl; 2191 break; 2192 case 1: 2193 hdmi->write = dw_hdmi_writeb; 2194 hdmi->read = dw_hdmi_readb; 2195 break; 2196 default: 2197 printf("reg-io-width must be 1 or 4\n"); 2198 return -EINVAL; 2199 } 2200 2201 return 0; 2202 } 2203 2204 static void initialize_hdmi_mutes(struct dw_hdmi *hdmi) 2205 { 2206 /*mute unnecessary interrupt, only enable hpd */ 2207 hdmi_writeb(hdmi, 0xff, HDMI_FC_MASK0); 2208 hdmi_writeb(hdmi, 0xff, HDMI_FC_MASK1); 2209 hdmi_writeb(hdmi, 0xff, HDMI_FC_MASK2); 2210 hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_FC_STAT0); 2211 hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_FC_STAT1); 2212 hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_FC_STAT2); 2213 hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_AS_STAT0); 2214 hdmi_writeb(hdmi, 0xfe, HDMI_IH_MUTE_PHY_STAT0); 2215 hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_I2CM_STAT0); 2216 hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_CEC_STAT0); 2217 hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_VP_STAT0); 2218 hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_I2CMPHY_STAT0); 2219 hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_AHBDMAAUD_STAT0); 2220 hdmi_writeb(hdmi, 0xf1, HDMI_PHY_MASK0); 2221 2222 /*Force output black*/ 2223 dw_hdmi_writel(hdmi, 0x00, HDMI_FC_DBGTMDS2); 2224 dw_hdmi_writel(hdmi, 0x00, HDMI_FC_DBGTMDS1); 2225 dw_hdmi_writel(hdmi, 0x00, HDMI_FC_DBGTMDS0); 2226 } 2227 2228 static void dw_hdmi_dev_init(struct dw_hdmi *hdmi) 2229 { 2230 hdmi->version = (hdmi_readb(hdmi, HDMI_DESIGN_ID) << 8) 2231 | (hdmi_readb(hdmi, HDMI_REVISION_ID) << 0); 2232 2233 initialize_hdmi_mutes(hdmi); 2234 } 2235 2236 static void dw_hdmi_i2c_set_divs(struct dw_hdmi *hdmi) 2237 { 2238 unsigned long low_ns, high_ns; 2239 unsigned long div_low, div_high; 2240 2241 /* Standard-mode */ 2242 if (hdmi->i2c->scl_high_ns < 4000) 2243 high_ns = 4708; 2244 else 2245 high_ns = hdmi->i2c->scl_high_ns; 2246 2247 if (hdmi->i2c->scl_low_ns < 4700) 2248 low_ns = 4916; 2249 else 2250 low_ns = hdmi->i2c->scl_low_ns; 2251 2252 div_low = (24000 * low_ns) / 1000000; 2253 if ((24000 * low_ns) % 1000000) 2254 div_low++; 2255 2256 div_high = (24000 * high_ns) / 1000000; 2257 if ((24000 * high_ns) % 1000000) 2258 div_high++; 2259 2260 /* Maximum divider supported by hw is 0xffff */ 2261 if (div_low > 0xffff) 2262 div_low = 0xffff; 2263 2264 if (div_high > 0xffff) 2265 div_high = 0xffff; 2266 2267 hdmi_writeb(hdmi, div_high & 0xff, HDMI_I2CM_SS_SCL_HCNT_0_ADDR); 2268 hdmi_writeb(hdmi, (div_high >> 8) & 0xff, 2269 HDMI_I2CM_SS_SCL_HCNT_1_ADDR); 2270 hdmi_writeb(hdmi, div_low & 0xff, HDMI_I2CM_SS_SCL_LCNT_0_ADDR); 2271 hdmi_writeb(hdmi, (div_low >> 8) & 0xff, 2272 HDMI_I2CM_SS_SCL_LCNT_1_ADDR); 2273 } 2274 2275 static void dw_hdmi_i2c_init(struct dw_hdmi *hdmi) 2276 { 2277 /* Software reset */ 2278 hdmi_writeb(hdmi, 0x00, HDMI_I2CM_SOFTRSTZ); 2279 2280 /* Set Standard Mode speed */ 2281 hdmi_modb(hdmi, HDMI_I2CM_DIV_STD_MODE, 2282 HDMI_I2CM_DIV_FAST_STD_MODE, HDMI_I2CM_DIV); 2283 2284 /* Set done, not acknowledged and arbitration interrupt polarities */ 2285 hdmi_writeb(hdmi, HDMI_I2CM_INT_DONE_POL, HDMI_I2CM_INT); 2286 hdmi_writeb(hdmi, HDMI_I2CM_CTLINT_NAC_POL | HDMI_I2CM_CTLINT_ARB_POL, 2287 HDMI_I2CM_CTLINT); 2288 2289 /* Clear DONE and ERROR interrupts */ 2290 hdmi_writeb(hdmi, HDMI_IH_I2CM_STAT0_ERROR | HDMI_IH_I2CM_STAT0_DONE, 2291 HDMI_IH_I2CM_STAT0); 2292 2293 /* Mute DONE and ERROR interrupts */ 2294 hdmi_writeb(hdmi, HDMI_IH_I2CM_STAT0_ERROR | HDMI_IH_I2CM_STAT0_DONE, 2295 HDMI_IH_MUTE_I2CM_STAT0); 2296 2297 /* set SDA high level holding time */ 2298 hdmi_writeb(hdmi, 0x48, HDMI_I2CM_SDA_HOLD); 2299 2300 dw_hdmi_i2c_set_divs(hdmi); 2301 } 2302 2303 void dw_hdmi_audio_enable(struct dw_hdmi *hdmi) 2304 { 2305 hdmi->audio_enable = true; 2306 hdmi_set_cts_n(hdmi, hdmi->audio_cts, hdmi->audio_n); 2307 } 2308 2309 void dw_hdmi_audio_disable(struct dw_hdmi *hdmi) 2310 { 2311 hdmi->audio_enable = false; 2312 hdmi_set_cts_n(hdmi, hdmi->audio_cts, 0); 2313 } 2314 2315 int rockchip_dw_hdmi_init(struct rockchip_connector *conn, struct display_state *state) 2316 { 2317 struct connector_state *conn_state = &state->conn_state; 2318 const struct dw_hdmi_plat_data *pdata = 2319 (const struct dw_hdmi_plat_data *)dev_get_driver_data(conn->dev); 2320 struct crtc_state *crtc_state = &state->crtc_state; 2321 struct dw_hdmi *hdmi; 2322 struct drm_display_mode *mode_buf; 2323 ofnode hdmi_node = conn->dev->node; 2324 u32 val; 2325 struct device_node *ddc_node; 2326 int ret; 2327 2328 hdmi = malloc(sizeof(struct dw_hdmi)); 2329 if (!hdmi) 2330 return -ENOMEM; 2331 2332 memset(hdmi, 0, sizeof(struct dw_hdmi)); 2333 mode_buf = malloc(MODE_LEN * sizeof(struct drm_display_mode)); 2334 if (!mode_buf) 2335 return -ENOMEM; 2336 hdmi->id = of_alias_get_id(ofnode_to_np(hdmi_node), "hdmi"); 2337 if (hdmi->id < 0) 2338 hdmi->id = 0; 2339 conn_state->disp_info = rockchip_get_disp_info(conn_state->type, hdmi->id); 2340 2341 memset(mode_buf, 0, MODE_LEN * sizeof(struct drm_display_mode)); 2342 2343 hdmi->dev_type = pdata->dev_type; 2344 hdmi->plat_data = pdata; 2345 2346 hdmi->regs = dev_read_addr_ptr(conn->dev); 2347 hdmi->io_width = ofnode_read_s32_default(hdmi_node, "reg-io-width", -1); 2348 2349 if (ofnode_read_bool(hdmi_node, "scramble-low-rates")) 2350 hdmi->scramble_low_rates = true; 2351 2352 if (ofnode_read_bool(hdmi_node, "hdcp1x-enable")) 2353 hdmi->hdcp1x_enable = true; 2354 else 2355 hdmi->hdcp1x_enable = false; 2356 2357 if (ofnode_read_bool(hdmi_node, "force_output_bus_format_RGB") || 2358 ofnode_read_bool(hdmi_node, "unsupported-yuv-input")) 2359 hdmi->output_bus_format_rgb = true; 2360 else 2361 hdmi->output_bus_format_rgb = false; 2362 2363 ret = dev_read_size(conn->dev, "rockchip,phy-table"); 2364 if (ret > 0 && hdmi->plat_data->phy_config) { 2365 u32 phy_config[ret / 4]; 2366 int i; 2367 2368 dev_read_u32_array(conn->dev, "rockchip,phy-table", phy_config, ret / 4); 2369 2370 for (i = 0; i < ret / 16; i++) { 2371 if (phy_config[i * 4] != 0) 2372 hdmi->plat_data->phy_config[i].mpixelclock = (u64)phy_config[i * 4]; 2373 else 2374 hdmi->plat_data->phy_config[i].mpixelclock = ~0UL; 2375 hdmi->plat_data->phy_config[i].sym_ctr = (u16)phy_config[i * 4 + 1]; 2376 hdmi->plat_data->phy_config[i].term = (u16)phy_config[i * 4 + 2]; 2377 hdmi->plat_data->phy_config[i].vlev_ctr = (u16)phy_config[i * 4 + 3]; 2378 } 2379 } 2380 2381 ddc_node = of_parse_phandle(ofnode_to_np(hdmi_node), "ddc-i2c-bus", 0); 2382 if (ddc_node) { 2383 uclass_get_device_by_ofnode(UCLASS_I2C, np_to_ofnode(ddc_node), 2384 &hdmi->adap.i2c_bus); 2385 if (hdmi->adap.i2c_bus) 2386 hdmi->adap.ops = i2c_get_ops(hdmi->adap.i2c_bus); 2387 } 2388 2389 hdmi->grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF); 2390 if (hdmi->grf <= 0) { 2391 printf("%s: Get syscon grf failed (ret=%p)\n", 2392 __func__, hdmi->grf); 2393 return -ENXIO; 2394 } 2395 2396 hdmi->gpio_base = (void *)dev_read_addr_index(conn->dev, 1); 2397 if (!hdmi->gpio_base) 2398 return -ENODEV; 2399 2400 ret = gpio_request_by_name(conn->dev, "hpd-gpios", 0, 2401 &hdmi->hpd_gpiod, GPIOD_IS_IN); 2402 if (ret && ret != -ENOENT) { 2403 printf("%s: Cannot get HPD GPIO: %d\n", __func__, ret); 2404 return ret; 2405 } 2406 2407 dw_hdmi_set_reg_wr(hdmi); 2408 2409 if (pdata->grf_vop_sel_reg) { 2410 if (crtc_state->crtc_id) 2411 val = ((1 << pdata->vop_sel_bit) | 2412 (1 << (16 + pdata->vop_sel_bit))); 2413 else 2414 val = ((0 << pdata->vop_sel_bit) | 2415 (1 << (16 + pdata->vop_sel_bit))); 2416 writel(val, hdmi->grf + pdata->grf_vop_sel_reg); 2417 } 2418 2419 hdmi->i2c = malloc(sizeof(struct dw_hdmi_i2c)); 2420 if (!hdmi->i2c) 2421 return -ENOMEM; 2422 hdmi->adap.ddc_xfer = dw_hdmi_i2c_xfer; 2423 2424 /* 2425 * Read high and low time from device tree. If not available use 2426 * the default timing scl clock rate is about 99.6KHz. 2427 */ 2428 hdmi->i2c->scl_high_ns = 2429 ofnode_read_s32_default(hdmi_node, 2430 "ddc-i2c-scl-high-time-ns", 4708); 2431 hdmi->i2c->scl_low_ns = 2432 ofnode_read_s32_default(hdmi_node, 2433 "ddc-i2c-scl-low-time-ns", 4916); 2434 2435 dw_hdmi_i2c_init(hdmi); 2436 conn_state->output_if |= VOP_OUTPUT_IF_HDMI0; 2437 conn_state->output_mode = ROCKCHIP_OUT_MODE_AAAA; 2438 2439 hdmi->edid_data.mode_buf = mode_buf; 2440 hdmi->sample_rate = 48000; 2441 2442 conn->data = hdmi; 2443 dw_hdmi_set_iomux(hdmi->grf, hdmi->gpio_base, 2444 &hdmi->hpd_gpiod, hdmi->dev_type); 2445 dw_hdmi_detect_phy(hdmi); 2446 dw_hdmi_dev_init(hdmi); 2447 2448 return 0; 2449 } 2450 2451 void rockchip_dw_hdmi_deinit(struct rockchip_connector *conn, struct display_state *state) 2452 { 2453 struct dw_hdmi *hdmi = conn->data; 2454 2455 if (hdmi->i2c) 2456 free(hdmi->i2c); 2457 if (hdmi->edid_data.mode_buf) 2458 free(hdmi->edid_data.mode_buf); 2459 if (hdmi) 2460 free(hdmi); 2461 } 2462 2463 int rockchip_dw_hdmi_prepare(struct rockchip_connector *conn, struct display_state *state) 2464 { 2465 return 0; 2466 } 2467 2468 int rockchip_dw_hdmi_enable(struct rockchip_connector *conn, struct display_state *state) 2469 { 2470 struct connector_state *conn_state = &state->conn_state; 2471 struct drm_display_mode *mode = &conn_state->mode; 2472 struct dw_hdmi *hdmi = conn->data; 2473 2474 if (!hdmi) 2475 return -EFAULT; 2476 2477 /* Store the display mode for plugin/DKMS poweron events */ 2478 memcpy(&hdmi->previous_mode, mode, sizeof(hdmi->previous_mode)); 2479 2480 dw_hdmi_setup(hdmi, conn, mode, state); 2481 2482 return 0; 2483 } 2484 2485 int rockchip_dw_hdmi_disable(struct rockchip_connector *conn, struct display_state *state) 2486 { 2487 struct dw_hdmi *hdmi = conn->data; 2488 2489 dw_hdmi_disable(conn, hdmi, state); 2490 return 0; 2491 } 2492 2493 int rockchip_dw_hdmi_get_timing(struct rockchip_connector *conn, struct display_state *state) 2494 { 2495 int ret, i, vic; 2496 struct connector_state *conn_state = &state->conn_state; 2497 struct drm_display_mode *mode = &conn_state->mode; 2498 struct dw_hdmi *hdmi = conn->data; 2499 struct edid *edid = (struct edid *)conn_state->edid; 2500 unsigned int bus_format; 2501 unsigned long enc_out_encoding; 2502 struct overscan *overscan = &conn_state->overscan; 2503 const u8 def_modes_vic[6] = {4, 16, 2, 17, 31, 19}; 2504 2505 if (!hdmi) 2506 return -EFAULT; 2507 2508 ret = drm_do_get_edid(&hdmi->adap, conn_state->edid); 2509 2510 if (!ret) { 2511 hdmi->sink_is_hdmi = 2512 drm_detect_hdmi_monitor(edid); 2513 hdmi->sink_has_audio = drm_detect_monitor_audio(edid); 2514 ret = drm_add_edid_modes(&hdmi->edid_data, conn_state->edid); 2515 } 2516 if (ret < 0) { 2517 hdmi->sink_is_hdmi = true; 2518 hdmi->sink_has_audio = true; 2519 do_cea_modes(&hdmi->edid_data, def_modes_vic, 2520 sizeof(def_modes_vic)); 2521 hdmi->edid_data.mode_buf[0].type |= DRM_MODE_TYPE_PREFERRED; 2522 hdmi->edid_data.preferred_mode = &hdmi->edid_data.mode_buf[0]; 2523 printf("failed to get edid\n"); 2524 } 2525 drm_rk_filter_whitelist(&hdmi->edid_data); 2526 if (hdmi->phy.ops->mode_valid) 2527 hdmi->phy.ops->mode_valid(conn, hdmi, state); 2528 drm_mode_max_resolution_filter(&hdmi->edid_data, 2529 &state->crtc_state.max_output); 2530 if (!drm_mode_prune_invalid(&hdmi->edid_data)) { 2531 printf("can't find valid hdmi mode\n"); 2532 return -EINVAL; 2533 } 2534 2535 for (i = 0; i < hdmi->edid_data.modes; i++) { 2536 hdmi->edid_data.mode_buf[i].vrefresh = 2537 drm_mode_vrefresh(&hdmi->edid_data.mode_buf[i]); 2538 2539 vic = drm_match_cea_mode(&hdmi->edid_data.mode_buf[i]); 2540 if (hdmi->edid_data.mode_buf[i].picture_aspect_ratio == HDMI_PICTURE_ASPECT_NONE) { 2541 if (vic >= 93 && vic <= 95) 2542 hdmi->edid_data.mode_buf[i].picture_aspect_ratio = 2543 HDMI_PICTURE_ASPECT_16_9; 2544 else if (vic == 98) 2545 hdmi->edid_data.mode_buf[i].picture_aspect_ratio = 2546 HDMI_PICTURE_ASPECT_256_135; 2547 } 2548 } 2549 2550 drm_mode_sort(&hdmi->edid_data); 2551 drm_rk_selete_output(&hdmi->edid_data, conn_state, &bus_format, 2552 overscan, hdmi->dev_type, hdmi->output_bus_format_rgb); 2553 2554 *mode = *hdmi->edid_data.preferred_mode; 2555 hdmi->vic = drm_match_cea_mode(mode); 2556 2557 printf("mode:%dx%d\n", mode->hdisplay, mode->vdisplay); 2558 if (state->force_output) 2559 bus_format = state->force_bus_format; 2560 conn_state->bus_format = bus_format; 2561 hdmi->hdmi_data.enc_in_bus_format = bus_format; 2562 hdmi->hdmi_data.enc_out_bus_format = bus_format; 2563 2564 switch (bus_format) { 2565 case MEDIA_BUS_FMT_UYVY10_1X20: 2566 conn_state->bus_format = MEDIA_BUS_FMT_YUV10_1X30; 2567 hdmi->hdmi_data.enc_in_bus_format = 2568 MEDIA_BUS_FMT_YUV10_1X30; 2569 break; 2570 case MEDIA_BUS_FMT_UYVY8_1X16: 2571 conn_state->bus_format = MEDIA_BUS_FMT_YUV8_1X24; 2572 hdmi->hdmi_data.enc_in_bus_format = 2573 MEDIA_BUS_FMT_YUV8_1X24; 2574 break; 2575 case MEDIA_BUS_FMT_UYYVYY8_0_5X24: 2576 case MEDIA_BUS_FMT_UYYVYY10_0_5X30: 2577 conn_state->output_mode = ROCKCHIP_OUT_MODE_YUV420; 2578 break; 2579 } 2580 2581 if (hdmi->vic == 6 || hdmi->vic == 7 || hdmi->vic == 21 || 2582 hdmi->vic == 22 || hdmi->vic == 2 || hdmi->vic == 3 || 2583 hdmi->vic == 17 || hdmi->vic == 18) 2584 enc_out_encoding = V4L2_YCBCR_ENC_601; 2585 else 2586 enc_out_encoding = V4L2_YCBCR_ENC_709; 2587 2588 if (enc_out_encoding == V4L2_YCBCR_ENC_BT2020) 2589 conn_state->color_space = V4L2_COLORSPACE_BT2020; 2590 else if (bus_format == MEDIA_BUS_FMT_RGB888_1X24 || 2591 bus_format == MEDIA_BUS_FMT_RGB101010_1X30) 2592 conn_state->color_space = V4L2_COLORSPACE_DEFAULT; 2593 else if (enc_out_encoding == V4L2_YCBCR_ENC_709) 2594 conn_state->color_space = V4L2_COLORSPACE_REC709; 2595 else 2596 conn_state->color_space = V4L2_COLORSPACE_SMPTE170M; 2597 2598 return 0; 2599 } 2600 2601 int rockchip_dw_hdmi_detect(struct rockchip_connector *conn, struct display_state *state) 2602 { 2603 int ret; 2604 struct dw_hdmi *hdmi = conn->data; 2605 2606 if (!hdmi) 2607 return -EFAULT; 2608 2609 ret = dw_hdmi_detect_hotplug(hdmi, state); 2610 2611 return ret; 2612 } 2613 2614 int rockchip_dw_hdmi_get_edid(struct rockchip_connector *conn, struct display_state *state) 2615 { 2616 int ret; 2617 struct connector_state *conn_state = &state->conn_state; 2618 struct dw_hdmi *hdmi = conn->data; 2619 2620 ret = drm_do_get_edid(&hdmi->adap, conn_state->edid); 2621 2622 return ret; 2623 } 2624 2625 int inno_dw_hdmi_phy_init(struct rockchip_connector *conn, struct dw_hdmi *hdmi, void *data) 2626 { 2627 struct display_state *state = (struct display_state *)data; 2628 struct connector_state *conn_state = &state->conn_state; 2629 u32 color_depth, bus_width; 2630 2631 color_depth = 2632 hdmi_bus_fmt_color_depth(hdmi->hdmi_data.enc_out_bus_format); 2633 2634 if (hdmi_bus_fmt_is_yuv420(hdmi->hdmi_data.enc_out_bus_format)) 2635 bus_width = color_depth / 2; 2636 else if (!hdmi_bus_fmt_is_yuv422(hdmi->hdmi_data.enc_out_bus_format)) 2637 bus_width = color_depth; 2638 else 2639 bus_width = 8; 2640 rockchip_phy_set_bus_width(conn->phy, bus_width); 2641 rockchip_phy_set_pll(conn->phy, 2642 conn_state->mode.crtc_clock * 1000); 2643 if (hdmi->edid_data.display_info.hdmi.scdc.supported) 2644 rockchip_dw_hdmi_scdc_set_tmds_rate(hdmi); 2645 rockchip_phy_power_on(conn->phy); 2646 2647 return 0; 2648 } 2649 2650 void inno_dw_hdmi_phy_disable(struct rockchip_connector *conn, struct dw_hdmi *hdmi, void *data) 2651 { 2652 } 2653 2654 enum drm_connector_status 2655 inno_dw_hdmi_phy_read_hpd(struct dw_hdmi *hdmi, void *data) 2656 { 2657 enum drm_connector_status status; 2658 struct display_state *state = (struct display_state *)data; 2659 2660 status = dw_hdmi_phy_read_hpd(hdmi, state); 2661 2662 if (hdmi->dev_type == RK3328_HDMI) { 2663 if (status == connector_status_connected) 2664 inno_dw_hdmi_set_domain(hdmi->grf, 1); 2665 else 2666 inno_dw_hdmi_set_domain(hdmi->grf, 0); 2667 } 2668 2669 return status; 2670 } 2671 2672 void inno_dw_hdmi_mode_valid(struct rockchip_connector *conn, struct dw_hdmi *hdmi, void *data) 2673 { 2674 struct hdmi_edid_data *edid_data = &hdmi->edid_data; 2675 unsigned long rate; 2676 int i, ret; 2677 struct drm_display_mode *mode_buf = edid_data->mode_buf; 2678 2679 for (i = 0; i < edid_data->modes; i++) { 2680 if (edid_data->mode_buf[i].invalid) 2681 continue; 2682 if (edid_data->mode_buf[i].flags & DRM_MODE_FLAG_DBLCLK) 2683 rate = mode_buf[i].clock * 1000 * 2; 2684 else 2685 rate = mode_buf[i].clock * 1000; 2686 2687 /* Check whether mode is out of phy cfg range. */ 2688 ret = rockchip_phy_round_rate(conn->phy, rate); 2689 2690 if (ret < 0) 2691 edid_data->mode_buf[i].invalid = true; 2692 } 2693 } 2694