1 /* 2 * xlnx_dp.c 3 * 4 * Copyright (C) 2015 : GreenSocs Ltd 5 * http://www.greensocs.com/ , email: info@greensocs.com 6 * 7 * Developed by : 8 * Frederic Konrad <fred.konrad@greensocs.com> 9 * 10 * This program is free software; you can redistribute it and/or modify 11 * it under the terms of the GNU General Public License as published by 12 * the Free Software Foundation, either version 2 of the License, or 13 * (at your option)any later version. 14 * 15 * This program is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 * GNU General Public License for more details. 19 * 20 * You should have received a copy of the GNU General Public License along 21 * with this program; if not, see <http://www.gnu.org/licenses/>. 22 * 23 */ 24 25 #include "qemu/osdep.h" 26 #include "qapi/error.h" 27 #include "qemu/log.h" 28 #include "hw/display/xlnx_dp.h" 29 30 #ifndef DEBUG_DP 31 #define DEBUG_DP 0 32 #endif 33 34 #define DPRINTF(fmt, ...) do { \ 35 if (DEBUG_DP) { \ 36 qemu_log("xlnx_dp: " fmt , ## __VA_ARGS__); \ 37 } \ 38 } while (0) 39 40 /* 41 * Register offset for DP. 42 */ 43 #define DP_LINK_BW_SET (0x0000 >> 2) 44 #define DP_LANE_COUNT_SET (0x0004 >> 2) 45 #define DP_ENHANCED_FRAME_EN (0x0008 >> 2) 46 #define DP_TRAINING_PATTERN_SET (0x000C >> 2) 47 #define DP_LINK_QUAL_PATTERN_SET (0x0010 >> 2) 48 #define DP_SCRAMBLING_DISABLE (0x0014 >> 2) 49 #define DP_DOWNSPREAD_CTRL (0x0018 >> 2) 50 #define DP_SOFTWARE_RESET (0x001C >> 2) 51 #define DP_TRANSMITTER_ENABLE (0x0080 >> 2) 52 #define DP_MAIN_STREAM_ENABLE (0x0084 >> 2) 53 #define DP_FORCE_SCRAMBLER_RESET (0x00C0 >> 2) 54 #define DP_VERSION_REGISTER (0x00F8 >> 2) 55 #define DP_CORE_ID (0x00FC >> 2) 56 57 #define DP_AUX_COMMAND_REGISTER (0x0100 >> 2) 58 #define AUX_ADDR_ONLY_MASK (0x1000) 59 #define AUX_COMMAND_MASK (0x0F00) 60 #define AUX_COMMAND_SHIFT (8) 61 #define AUX_COMMAND_NBYTES (0x000F) 62 63 #define DP_AUX_WRITE_FIFO (0x0104 >> 2) 64 #define DP_AUX_ADDRESS (0x0108 >> 2) 65 #define DP_AUX_CLOCK_DIVIDER (0x010C >> 2) 66 #define DP_TX_USER_FIFO_OVERFLOW (0x0110 >> 2) 67 #define DP_INTERRUPT_SIGNAL_STATE (0x0130 >> 2) 68 #define DP_AUX_REPLY_DATA (0x0134 >> 2) 69 #define DP_AUX_REPLY_CODE (0x0138 >> 2) 70 #define DP_AUX_REPLY_COUNT (0x013C >> 2) 71 #define DP_REPLY_DATA_COUNT (0x0148 >> 2) 72 #define DP_REPLY_STATUS (0x014C >> 2) 73 #define DP_HPD_DURATION (0x0150 >> 2) 74 #define DP_MAIN_STREAM_HTOTAL (0x0180 >> 2) 75 #define DP_MAIN_STREAM_VTOTAL (0x0184 >> 2) 76 #define DP_MAIN_STREAM_POLARITY (0x0188 >> 2) 77 #define DP_MAIN_STREAM_HSWIDTH (0x018C >> 2) 78 #define DP_MAIN_STREAM_VSWIDTH (0x0190 >> 2) 79 #define DP_MAIN_STREAM_HRES (0x0194 >> 2) 80 #define DP_MAIN_STREAM_VRES (0x0198 >> 2) 81 #define DP_MAIN_STREAM_HSTART (0x019C >> 2) 82 #define DP_MAIN_STREAM_VSTART (0x01A0 >> 2) 83 #define DP_MAIN_STREAM_MISC0 (0x01A4 >> 2) 84 #define DP_MAIN_STREAM_MISC1 (0x01A8 >> 2) 85 #define DP_MAIN_STREAM_M_VID (0x01AC >> 2) 86 #define DP_MSA_TRANSFER_UNIT_SIZE (0x01B0 >> 2) 87 #define DP_MAIN_STREAM_N_VID (0x01B4 >> 2) 88 #define DP_USER_DATA_COUNT_PER_LANE (0x01BC >> 2) 89 #define DP_MIN_BYTES_PER_TU (0x01C4 >> 2) 90 #define DP_FRAC_BYTES_PER_TU (0x01C8 >> 2) 91 #define DP_INIT_WAIT (0x01CC >> 2) 92 #define DP_PHY_RESET (0x0200 >> 2) 93 #define DP_PHY_VOLTAGE_DIFF_LANE_0 (0x0220 >> 2) 94 #define DP_PHY_VOLTAGE_DIFF_LANE_1 (0x0224 >> 2) 95 #define DP_TRANSMIT_PRBS7 (0x0230 >> 2) 96 #define DP_PHY_CLOCK_SELECT (0x0234 >> 2) 97 #define DP_TX_PHY_POWER_DOWN (0x0238 >> 2) 98 #define DP_PHY_PRECURSOR_LANE_0 (0x023C >> 2) 99 #define DP_PHY_PRECURSOR_LANE_1 (0x0240 >> 2) 100 #define DP_PHY_POSTCURSOR_LANE_0 (0x024C >> 2) 101 #define DP_PHY_POSTCURSOR_LANE_1 (0x0250 >> 2) 102 #define DP_PHY_STATUS (0x0280 >> 2) 103 104 #define DP_TX_AUDIO_CONTROL (0x0300 >> 2) 105 #define DP_TX_AUD_CTRL (1) 106 107 #define DP_TX_AUDIO_CHANNELS (0x0304 >> 2) 108 #define DP_TX_AUDIO_INFO_DATA(n) ((0x0308 + 4 * n) >> 2) 109 #define DP_TX_M_AUD (0x0328 >> 2) 110 #define DP_TX_N_AUD (0x032C >> 2) 111 #define DP_TX_AUDIO_EXT_DATA(n) ((0x0330 + 4 * n) >> 2) 112 #define DP_INT_STATUS (0x03A0 >> 2) 113 #define DP_INT_MASK (0x03A4 >> 2) 114 #define DP_INT_EN (0x03A8 >> 2) 115 #define DP_INT_DS (0x03AC >> 2) 116 117 /* 118 * Registers offset for Audio Video Buffer configuration. 119 */ 120 #define V_BLEND_OFFSET (0xA000) 121 #define V_BLEND_BG_CLR_0 (0x0000 >> 2) 122 #define V_BLEND_BG_CLR_1 (0x0004 >> 2) 123 #define V_BLEND_BG_CLR_2 (0x0008 >> 2) 124 #define V_BLEND_SET_GLOBAL_ALPHA_REG (0x000C >> 2) 125 #define V_BLEND_OUTPUT_VID_FORMAT (0x0014 >> 2) 126 #define V_BLEND_LAYER0_CONTROL (0x0018 >> 2) 127 #define V_BLEND_LAYER1_CONTROL (0x001C >> 2) 128 129 #define V_BLEND_RGB2YCBCR_COEFF(n) ((0x0020 + 4 * n) >> 2) 130 #define V_BLEND_IN1CSC_COEFF(n) ((0x0044 + 4 * n) >> 2) 131 132 #define V_BLEND_LUMA_IN1CSC_OFFSET (0x0068 >> 2) 133 #define V_BLEND_CR_IN1CSC_OFFSET (0x006C >> 2) 134 #define V_BLEND_CB_IN1CSC_OFFSET (0x0070 >> 2) 135 #define V_BLEND_LUMA_OUTCSC_OFFSET (0x0074 >> 2) 136 #define V_BLEND_CR_OUTCSC_OFFSET (0x0078 >> 2) 137 #define V_BLEND_CB_OUTCSC_OFFSET (0x007C >> 2) 138 139 #define V_BLEND_IN2CSC_COEFF(n) ((0x0080 + 4 * n) >> 2) 140 141 #define V_BLEND_LUMA_IN2CSC_OFFSET (0x00A4 >> 2) 142 #define V_BLEND_CR_IN2CSC_OFFSET (0x00A8 >> 2) 143 #define V_BLEND_CB_IN2CSC_OFFSET (0x00AC >> 2) 144 #define V_BLEND_CHROMA_KEY_ENABLE (0x01D0 >> 2) 145 #define V_BLEND_CHROMA_KEY_COMP1 (0x01D4 >> 2) 146 #define V_BLEND_CHROMA_KEY_COMP2 (0x01D8 >> 2) 147 #define V_BLEND_CHROMA_KEY_COMP3 (0x01DC >> 2) 148 149 /* 150 * Registers offset for Audio Video Buffer configuration. 151 */ 152 #define AV_BUF_MANAGER_OFFSET (0xB000) 153 #define AV_BUF_FORMAT (0x0000 >> 2) 154 #define AV_BUF_NON_LIVE_LATENCY (0x0008 >> 2) 155 #define AV_CHBUF0 (0x0010 >> 2) 156 #define AV_CHBUF1 (0x0014 >> 2) 157 #define AV_CHBUF2 (0x0018 >> 2) 158 #define AV_CHBUF3 (0x001C >> 2) 159 #define AV_CHBUF4 (0x0020 >> 2) 160 #define AV_CHBUF5 (0x0024 >> 2) 161 #define AV_BUF_STC_CONTROL (0x002C >> 2) 162 #define AV_BUF_STC_INIT_VALUE0 (0x0030 >> 2) 163 #define AV_BUF_STC_INIT_VALUE1 (0x0034 >> 2) 164 #define AV_BUF_STC_ADJ (0x0038 >> 2) 165 #define AV_BUF_STC_VIDEO_VSYNC_TS_REG0 (0x003C >> 2) 166 #define AV_BUF_STC_VIDEO_VSYNC_TS_REG1 (0x0040 >> 2) 167 #define AV_BUF_STC_EXT_VSYNC_TS_REG0 (0x0044 >> 2) 168 #define AV_BUF_STC_EXT_VSYNC_TS_REG1 (0x0048 >> 2) 169 #define AV_BUF_STC_CUSTOM_EVENT_TS_REG0 (0x004C >> 2) 170 #define AV_BUF_STC_CUSTOM_EVENT_TS_REG1 (0x0050 >> 2) 171 #define AV_BUF_STC_CUSTOM_EVENT2_TS_REG0 (0x0054 >> 2) 172 #define AV_BUF_STC_CUSTOM_EVENT2_TS_REG1 (0x0058 >> 2) 173 #define AV_BUF_STC_SNAPSHOT0 (0x0060 >> 2) 174 #define AV_BUF_STC_SNAPSHOT1 (0x0064 >> 2) 175 #define AV_BUF_OUTPUT_AUDIO_VIDEO_SELECT (0x0070 >> 2) 176 #define AV_BUF_HCOUNT_VCOUNT_INT0 (0x0074 >> 2) 177 #define AV_BUF_HCOUNT_VCOUNT_INT1 (0x0078 >> 2) 178 #define AV_BUF_DITHER_CONFIG (0x007C >> 2) 179 #define AV_BUF_DITHER_CONFIG_MAX (0x008C >> 2) 180 #define AV_BUF_DITHER_CONFIG_MIN (0x0090 >> 2) 181 #define AV_BUF_PATTERN_GEN_SELECT (0x0100 >> 2) 182 #define AV_BUF_AUD_VID_CLK_SOURCE (0x0120 >> 2) 183 #define AV_BUF_SRST_REG (0x0124 >> 2) 184 #define AV_BUF_AUDIO_RDY_INTERVAL (0x0128 >> 2) 185 #define AV_BUF_AUDIO_CH_CONFIG (0x012C >> 2) 186 187 #define AV_BUF_GRAPHICS_COMP_SCALE_FACTOR(n)((0x0200 + 4 * n) >> 2) 188 189 #define AV_BUF_VIDEO_COMP_SCALE_FACTOR(n) ((0x020C + 4 * n) >> 2) 190 191 #define AV_BUF_LIVE_VIDEO_COMP_SF(n) ((0x0218 + 4 * n) >> 2) 192 193 #define AV_BUF_LIVE_VID_CONFIG (0x0224 >> 2) 194 195 #define AV_BUF_LIVE_GFX_COMP_SF(n) ((0x0228 + 4 * n) >> 2) 196 197 #define AV_BUF_LIVE_GFX_CONFIG (0x0234 >> 2) 198 199 #define AUDIO_MIXER_REGISTER_OFFSET (0xC000) 200 #define AUDIO_MIXER_VOLUME_CONTROL (0x0000 >> 2) 201 #define AUDIO_MIXER_META_DATA (0x0004 >> 2) 202 #define AUD_CH_STATUS_REG(n) ((0x0008 + 4 * n) >> 2) 203 #define AUD_CH_A_DATA_REG(n) ((0x0020 + 4 * n) >> 2) 204 #define AUD_CH_B_DATA_REG(n) ((0x0038 + 4 * n) >> 2) 205 206 #define DP_AUDIO_DMA_CHANNEL(n) (4 + n) 207 #define DP_GRAPHIC_DMA_CHANNEL (3) 208 #define DP_VIDEO_DMA_CHANNEL (0) 209 210 enum DPGraphicFmt { 211 DP_GRAPHIC_RGBA8888 = 0 << 8, 212 DP_GRAPHIC_ABGR8888 = 1 << 8, 213 DP_GRAPHIC_RGB888 = 2 << 8, 214 DP_GRAPHIC_BGR888 = 3 << 8, 215 DP_GRAPHIC_RGBA5551 = 4 << 8, 216 DP_GRAPHIC_RGBA4444 = 5 << 8, 217 DP_GRAPHIC_RGB565 = 6 << 8, 218 DP_GRAPHIC_8BPP = 7 << 8, 219 DP_GRAPHIC_4BPP = 8 << 8, 220 DP_GRAPHIC_2BPP = 9 << 8, 221 DP_GRAPHIC_1BPP = 10 << 8, 222 DP_GRAPHIC_MASK = 0xF << 8 223 }; 224 225 enum DPVideoFmt { 226 DP_NL_VID_CB_Y0_CR_Y1 = 0, 227 DP_NL_VID_CR_Y0_CB_Y1 = 1, 228 DP_NL_VID_Y0_CR_Y1_CB = 2, 229 DP_NL_VID_Y0_CB_Y1_CR = 3, 230 DP_NL_VID_YV16 = 4, 231 DP_NL_VID_YV24 = 5, 232 DP_NL_VID_YV16CL = 6, 233 DP_NL_VID_MONO = 7, 234 DP_NL_VID_YV16CL2 = 8, 235 DP_NL_VID_YUV444 = 9, 236 DP_NL_VID_RGB888 = 10, 237 DP_NL_VID_RGBA8880 = 11, 238 DP_NL_VID_RGB888_10BPC = 12, 239 DP_NL_VID_YUV444_10BPC = 13, 240 DP_NL_VID_YV16CL2_10BPC = 14, 241 DP_NL_VID_YV16CL_10BPC = 15, 242 DP_NL_VID_YV16_10BPC = 16, 243 DP_NL_VID_YV24_10BPC = 17, 244 DP_NL_VID_Y_ONLY_10BPC = 18, 245 DP_NL_VID_YV16_420 = 19, 246 DP_NL_VID_YV16CL_420 = 20, 247 DP_NL_VID_YV16CL2_420 = 21, 248 DP_NL_VID_YV16_420_10BPC = 22, 249 DP_NL_VID_YV16CL_420_10BPC = 23, 250 DP_NL_VID_YV16CL2_420_10BPC = 24, 251 DP_NL_VID_FMT_MASK = 0x1F 252 }; 253 254 typedef enum DPGraphicFmt DPGraphicFmt; 255 typedef enum DPVideoFmt DPVideoFmt; 256 257 static const VMStateDescription vmstate_dp = { 258 .name = TYPE_XLNX_DP, 259 .version_id = 1, 260 .fields = (VMStateField[]){ 261 VMSTATE_UINT32_ARRAY(core_registers, XlnxDPState, 262 DP_CORE_REG_ARRAY_SIZE), 263 VMSTATE_UINT32_ARRAY(avbufm_registers, XlnxDPState, 264 DP_AVBUF_REG_ARRAY_SIZE), 265 VMSTATE_UINT32_ARRAY(vblend_registers, XlnxDPState, 266 DP_VBLEND_REG_ARRAY_SIZE), 267 VMSTATE_UINT32_ARRAY(audio_registers, XlnxDPState, 268 DP_AUDIO_REG_ARRAY_SIZE), 269 VMSTATE_END_OF_LIST() 270 } 271 }; 272 273 static void xlnx_dp_update_irq(XlnxDPState *s); 274 275 static uint64_t xlnx_dp_audio_read(void *opaque, hwaddr offset, unsigned size) 276 { 277 XlnxDPState *s = XLNX_DP(opaque); 278 279 offset = offset >> 2; 280 return s->audio_registers[offset]; 281 } 282 283 static void xlnx_dp_audio_write(void *opaque, hwaddr offset, uint64_t value, 284 unsigned size) 285 { 286 XlnxDPState *s = XLNX_DP(opaque); 287 288 offset = offset >> 2; 289 290 switch (offset) { 291 case AUDIO_MIXER_META_DATA: 292 s->audio_registers[offset] = value & 0x00000001; 293 break; 294 default: 295 s->audio_registers[offset] = value; 296 break; 297 } 298 } 299 300 static const MemoryRegionOps audio_ops = { 301 .read = xlnx_dp_audio_read, 302 .write = xlnx_dp_audio_write, 303 .endianness = DEVICE_NATIVE_ENDIAN, 304 }; 305 306 static inline uint32_t xlnx_dp_audio_get_volume(XlnxDPState *s, 307 uint8_t channel) 308 { 309 switch (channel) { 310 case 0: 311 return extract32(s->audio_registers[AUDIO_MIXER_VOLUME_CONTROL], 0, 16); 312 case 1: 313 return extract32(s->audio_registers[AUDIO_MIXER_VOLUME_CONTROL], 16, 314 16); 315 default: 316 return 0; 317 } 318 } 319 320 static inline void xlnx_dp_audio_activate(XlnxDPState *s) 321 { 322 bool activated = ((s->core_registers[DP_TX_AUDIO_CONTROL] 323 & DP_TX_AUD_CTRL) != 0); 324 AUD_set_active_out(s->amixer_output_stream, activated); 325 xlnx_dpdma_set_host_data_location(s->dpdma, DP_AUDIO_DMA_CHANNEL(0), 326 &s->audio_buffer_0); 327 xlnx_dpdma_set_host_data_location(s->dpdma, DP_AUDIO_DMA_CHANNEL(1), 328 &s->audio_buffer_1); 329 } 330 331 static inline void xlnx_dp_audio_mix_buffer(XlnxDPState *s) 332 { 333 /* 334 * Audio packets are signed and have this shape: 335 * | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 336 * | R3 | L3 | R2 | L2 | R1 | L1 | R0 | L0 | 337 * 338 * Output audio is 16bits saturated. 339 */ 340 int i; 341 342 if ((s->audio_data_available[0]) && (xlnx_dp_audio_get_volume(s, 0))) { 343 for (i = 0; i < s->audio_data_available[0] / 2; i++) { 344 s->temp_buffer[i] = (int64_t)(s->audio_buffer_0[i]) 345 * xlnx_dp_audio_get_volume(s, 0) / 8192; 346 } 347 s->byte_left = s->audio_data_available[0]; 348 } else { 349 memset(s->temp_buffer, 0, s->audio_data_available[1] / 2); 350 } 351 352 if ((s->audio_data_available[1]) && (xlnx_dp_audio_get_volume(s, 1))) { 353 if ((s->audio_data_available[0] == 0) 354 || (s->audio_data_available[1] == s->audio_data_available[0])) { 355 for (i = 0; i < s->audio_data_available[1] / 2; i++) { 356 s->temp_buffer[i] += (int64_t)(s->audio_buffer_1[i]) 357 * xlnx_dp_audio_get_volume(s, 1) / 8192; 358 } 359 s->byte_left = s->audio_data_available[1]; 360 } 361 } 362 363 for (i = 0; i < s->byte_left / 2; i++) { 364 s->out_buffer[i] = MAX(-32767, MIN(s->temp_buffer[i], 32767)); 365 } 366 367 s->data_ptr = 0; 368 } 369 370 static void xlnx_dp_audio_callback(void *opaque, int avail) 371 { 372 /* 373 * Get some data from the DPDMA and compute these datas. 374 * Then wait for QEMU's audio subsystem to call this callback. 375 */ 376 XlnxDPState *s = XLNX_DP(opaque); 377 size_t written = 0; 378 379 /* If there are already some data don't get more data. */ 380 if (s->byte_left == 0) { 381 s->audio_data_available[0] = xlnx_dpdma_start_operation(s->dpdma, 4, 382 true); 383 s->audio_data_available[1] = xlnx_dpdma_start_operation(s->dpdma, 5, 384 true); 385 xlnx_dp_audio_mix_buffer(s); 386 } 387 388 /* Send the buffer through the audio. */ 389 if (s->byte_left <= MAX_QEMU_BUFFER_SIZE) { 390 if (s->byte_left != 0) { 391 written = AUD_write(s->amixer_output_stream, 392 &s->out_buffer[s->data_ptr], s->byte_left); 393 } else { 394 /* 395 * There is nothing to play.. We don't have any data! Fill the 396 * buffer with zero's and send it. 397 */ 398 written = 0; 399 memset(s->out_buffer, 0, 1024); 400 AUD_write(s->amixer_output_stream, s->out_buffer, 1024); 401 } 402 } else { 403 written = AUD_write(s->amixer_output_stream, 404 &s->out_buffer[s->data_ptr], MAX_QEMU_BUFFER_SIZE); 405 } 406 s->byte_left -= written; 407 s->data_ptr += written; 408 } 409 410 /* 411 * AUX channel related function. 412 */ 413 static void xlnx_dp_aux_clear_rx_fifo(XlnxDPState *s) 414 { 415 fifo8_reset(&s->rx_fifo); 416 } 417 418 static void xlnx_dp_aux_push_rx_fifo(XlnxDPState *s, uint8_t *buf, size_t len) 419 { 420 DPRINTF("Push %u data in rx_fifo\n", (unsigned)len); 421 fifo8_push_all(&s->rx_fifo, buf, len); 422 } 423 424 static uint8_t xlnx_dp_aux_pop_rx_fifo(XlnxDPState *s) 425 { 426 uint8_t ret; 427 428 if (fifo8_is_empty(&s->rx_fifo)) { 429 DPRINTF("rx_fifo underflow..\n"); 430 abort(); 431 } 432 ret = fifo8_pop(&s->rx_fifo); 433 DPRINTF("pop 0x%" PRIX8 " from rx_fifo.\n", ret); 434 return ret; 435 } 436 437 static void xlnx_dp_aux_clear_tx_fifo(XlnxDPState *s) 438 { 439 fifo8_reset(&s->tx_fifo); 440 } 441 442 static void xlnx_dp_aux_push_tx_fifo(XlnxDPState *s, uint8_t *buf, size_t len) 443 { 444 DPRINTF("Push %u data in tx_fifo\n", (unsigned)len); 445 fifo8_push_all(&s->tx_fifo, buf, len); 446 } 447 448 static uint8_t xlnx_dp_aux_pop_tx_fifo(XlnxDPState *s) 449 { 450 uint8_t ret; 451 452 if (fifo8_is_empty(&s->tx_fifo)) { 453 DPRINTF("tx_fifo underflow..\n"); 454 abort(); 455 } 456 ret = fifo8_pop(&s->tx_fifo); 457 DPRINTF("pop 0x%2.2X from tx_fifo.\n", ret); 458 return ret; 459 } 460 461 static uint32_t xlnx_dp_aux_get_address(XlnxDPState *s) 462 { 463 return s->core_registers[DP_AUX_ADDRESS]; 464 } 465 466 /* 467 * Get command from the register. 468 */ 469 static void xlnx_dp_aux_set_command(XlnxDPState *s, uint32_t value) 470 { 471 bool address_only = (value & AUX_ADDR_ONLY_MASK) != 0; 472 AUXCommand cmd = (value & AUX_COMMAND_MASK) >> AUX_COMMAND_SHIFT; 473 uint8_t nbytes = (value & AUX_COMMAND_NBYTES) + 1; 474 uint8_t buf[16]; 475 int i; 476 477 /* 478 * When an address_only command is executed nothing happen to the fifo, so 479 * just make nbytes = 0. 480 */ 481 if (address_only) { 482 nbytes = 0; 483 } 484 485 switch (cmd) { 486 case READ_AUX: 487 case READ_I2C: 488 case READ_I2C_MOT: 489 s->core_registers[DP_AUX_REPLY_CODE] = aux_request(s->aux_bus, cmd, 490 xlnx_dp_aux_get_address(s), 491 nbytes, buf); 492 s->core_registers[DP_REPLY_DATA_COUNT] = nbytes; 493 494 if (s->core_registers[DP_AUX_REPLY_CODE] == AUX_I2C_ACK) { 495 xlnx_dp_aux_push_rx_fifo(s, buf, nbytes); 496 } 497 break; 498 case WRITE_AUX: 499 case WRITE_I2C: 500 case WRITE_I2C_MOT: 501 for (i = 0; i < nbytes; i++) { 502 buf[i] = xlnx_dp_aux_pop_tx_fifo(s); 503 } 504 s->core_registers[DP_AUX_REPLY_CODE] = aux_request(s->aux_bus, cmd, 505 xlnx_dp_aux_get_address(s), 506 nbytes, buf); 507 xlnx_dp_aux_clear_tx_fifo(s); 508 break; 509 case WRITE_I2C_STATUS: 510 qemu_log_mask(LOG_UNIMP, "xlnx_dp: Write i2c status not implemented\n"); 511 break; 512 default: 513 abort(); 514 } 515 516 s->core_registers[DP_INTERRUPT_SIGNAL_STATE] |= 0x04; 517 } 518 519 static void xlnx_dp_set_dpdma(const Object *obj, const char *name, Object *val, 520 Error **errp) 521 { 522 XlnxDPState *s = XLNX_DP(obj); 523 if (s->console) { 524 DisplaySurface *surface = qemu_console_surface(s->console); 525 XlnxDPDMAState *dma = XLNX_DPDMA(val); 526 xlnx_dpdma_set_host_data_location(dma, DP_GRAPHIC_DMA_CHANNEL, 527 surface_data(surface)); 528 } 529 } 530 531 static inline uint8_t xlnx_dp_global_alpha_value(XlnxDPState *s) 532 { 533 return (s->vblend_registers[V_BLEND_SET_GLOBAL_ALPHA_REG] & 0x1FE) >> 1; 534 } 535 536 static inline bool xlnx_dp_global_alpha_enabled(XlnxDPState *s) 537 { 538 /* 539 * If the alpha is totally opaque (255) we consider the alpha is disabled to 540 * reduce CPU consumption. 541 */ 542 return ((xlnx_dp_global_alpha_value(s) != 0xFF) && 543 ((s->vblend_registers[V_BLEND_SET_GLOBAL_ALPHA_REG] & 0x01) != 0)); 544 } 545 546 static void xlnx_dp_recreate_surface(XlnxDPState *s) 547 { 548 /* 549 * Two possibilities, if blending is enabled the console displays 550 * bout_plane, if not g_plane is displayed. 551 */ 552 uint16_t width = s->core_registers[DP_MAIN_STREAM_HRES]; 553 uint16_t height = s->core_registers[DP_MAIN_STREAM_VRES]; 554 DisplaySurface *current_console_surface = qemu_console_surface(s->console); 555 556 if ((width != 0) && (height != 0)) { 557 /* 558 * As dpy_gfx_replace_surface calls qemu_free_displaysurface on the 559 * surface we need to be careful and don't free the surface associated 560 * to the console or double free will happen. 561 */ 562 if (s->bout_plane.surface != current_console_surface) { 563 qemu_free_displaysurface(s->bout_plane.surface); 564 } 565 if (s->v_plane.surface != current_console_surface) { 566 qemu_free_displaysurface(s->v_plane.surface); 567 } 568 if (s->g_plane.surface != current_console_surface) { 569 qemu_free_displaysurface(s->g_plane.surface); 570 } 571 572 s->g_plane.surface 573 = qemu_create_displaysurface_from(width, height, 574 s->g_plane.format, 0, NULL); 575 s->v_plane.surface 576 = qemu_create_displaysurface_from(width, height, 577 s->v_plane.format, 0, NULL); 578 if (xlnx_dp_global_alpha_enabled(s)) { 579 s->bout_plane.surface = 580 qemu_create_displaysurface_from(width, 581 height, 582 s->g_plane.format, 583 0, NULL); 584 dpy_gfx_replace_surface(s->console, s->bout_plane.surface); 585 } else { 586 s->bout_plane.surface = NULL; 587 dpy_gfx_replace_surface(s->console, s->g_plane.surface); 588 } 589 590 xlnx_dpdma_set_host_data_location(s->dpdma, DP_GRAPHIC_DMA_CHANNEL, 591 surface_data(s->g_plane.surface)); 592 xlnx_dpdma_set_host_data_location(s->dpdma, DP_VIDEO_DMA_CHANNEL, 593 surface_data(s->v_plane.surface)); 594 } 595 } 596 597 /* 598 * Change the graphic format of the surface. 599 */ 600 static void xlnx_dp_change_graphic_fmt(XlnxDPState *s) 601 { 602 switch (s->avbufm_registers[AV_BUF_FORMAT] & DP_GRAPHIC_MASK) { 603 case DP_GRAPHIC_RGBA8888: 604 s->g_plane.format = PIXMAN_r8g8b8a8; 605 break; 606 case DP_GRAPHIC_ABGR8888: 607 s->g_plane.format = PIXMAN_a8b8g8r8; 608 break; 609 case DP_GRAPHIC_RGB565: 610 s->g_plane.format = PIXMAN_r5g6b5; 611 break; 612 case DP_GRAPHIC_RGB888: 613 s->g_plane.format = PIXMAN_r8g8b8; 614 break; 615 case DP_GRAPHIC_BGR888: 616 s->g_plane.format = PIXMAN_b8g8r8; 617 break; 618 default: 619 DPRINTF("error: unsupported graphic format %u.\n", 620 s->avbufm_registers[AV_BUF_FORMAT] & DP_GRAPHIC_MASK); 621 abort(); 622 } 623 624 switch (s->avbufm_registers[AV_BUF_FORMAT] & DP_NL_VID_FMT_MASK) { 625 case 0: 626 s->v_plane.format = PIXMAN_x8b8g8r8; 627 break; 628 case DP_NL_VID_Y0_CB_Y1_CR: 629 s->v_plane.format = PIXMAN_yuy2; 630 break; 631 case DP_NL_VID_RGBA8880: 632 s->v_plane.format = PIXMAN_x8b8g8r8; 633 break; 634 default: 635 DPRINTF("error: unsupported video format %u.\n", 636 s->avbufm_registers[AV_BUF_FORMAT] & DP_NL_VID_FMT_MASK); 637 abort(); 638 } 639 640 xlnx_dp_recreate_surface(s); 641 } 642 643 static void xlnx_dp_update_irq(XlnxDPState *s) 644 { 645 uint32_t flags; 646 647 flags = s->core_registers[DP_INT_STATUS] & ~s->core_registers[DP_INT_MASK]; 648 DPRINTF("update IRQ value = %" PRIx32 "\n", flags); 649 qemu_set_irq(s->irq, flags != 0); 650 } 651 652 static uint64_t xlnx_dp_read(void *opaque, hwaddr offset, unsigned size) 653 { 654 XlnxDPState *s = XLNX_DP(opaque); 655 uint64_t ret = 0; 656 657 offset = offset >> 2; 658 659 switch (offset) { 660 case DP_TX_USER_FIFO_OVERFLOW: 661 /* This register is cleared after a read */ 662 ret = s->core_registers[DP_TX_USER_FIFO_OVERFLOW]; 663 s->core_registers[DP_TX_USER_FIFO_OVERFLOW] = 0; 664 break; 665 case DP_AUX_REPLY_DATA: 666 ret = xlnx_dp_aux_pop_rx_fifo(s); 667 break; 668 case DP_INTERRUPT_SIGNAL_STATE: 669 /* 670 * XXX: Not sure it is the right thing to do actually. 671 * The register is not written by the device driver so it's stuck 672 * to 0x04. 673 */ 674 ret = s->core_registers[DP_INTERRUPT_SIGNAL_STATE]; 675 s->core_registers[DP_INTERRUPT_SIGNAL_STATE] &= ~0x04; 676 break; 677 case DP_AUX_WRITE_FIFO: 678 case DP_TX_AUDIO_INFO_DATA(0): 679 case DP_TX_AUDIO_INFO_DATA(1): 680 case DP_TX_AUDIO_INFO_DATA(2): 681 case DP_TX_AUDIO_INFO_DATA(3): 682 case DP_TX_AUDIO_INFO_DATA(4): 683 case DP_TX_AUDIO_INFO_DATA(5): 684 case DP_TX_AUDIO_INFO_DATA(6): 685 case DP_TX_AUDIO_INFO_DATA(7): 686 case DP_TX_AUDIO_EXT_DATA(0): 687 case DP_TX_AUDIO_EXT_DATA(1): 688 case DP_TX_AUDIO_EXT_DATA(2): 689 case DP_TX_AUDIO_EXT_DATA(3): 690 case DP_TX_AUDIO_EXT_DATA(4): 691 case DP_TX_AUDIO_EXT_DATA(5): 692 case DP_TX_AUDIO_EXT_DATA(6): 693 case DP_TX_AUDIO_EXT_DATA(7): 694 case DP_TX_AUDIO_EXT_DATA(8): 695 /* write only registers */ 696 ret = 0; 697 break; 698 default: 699 assert(offset <= (0x3AC >> 2)); 700 ret = s->core_registers[offset]; 701 break; 702 } 703 704 DPRINTF("core read @%" PRIx64 " = 0x%8.8" PRIX64 "\n", offset << 2, ret); 705 return ret; 706 } 707 708 static void xlnx_dp_write(void *opaque, hwaddr offset, uint64_t value, 709 unsigned size) 710 { 711 XlnxDPState *s = XLNX_DP(opaque); 712 713 DPRINTF("core write @%" PRIx64 " = 0x%8.8" PRIX64 "\n", offset, value); 714 715 offset = offset >> 2; 716 717 switch (offset) { 718 /* 719 * Only special write case are handled. 720 */ 721 case DP_LINK_BW_SET: 722 s->core_registers[offset] = value & 0x000000FF; 723 break; 724 case DP_LANE_COUNT_SET: 725 case DP_MAIN_STREAM_MISC0: 726 s->core_registers[offset] = value & 0x0000000F; 727 break; 728 case DP_TRAINING_PATTERN_SET: 729 case DP_LINK_QUAL_PATTERN_SET: 730 case DP_MAIN_STREAM_POLARITY: 731 case DP_PHY_VOLTAGE_DIFF_LANE_0: 732 case DP_PHY_VOLTAGE_DIFF_LANE_1: 733 s->core_registers[offset] = value & 0x00000003; 734 break; 735 case DP_ENHANCED_FRAME_EN: 736 case DP_SCRAMBLING_DISABLE: 737 case DP_DOWNSPREAD_CTRL: 738 case DP_MAIN_STREAM_ENABLE: 739 case DP_TRANSMIT_PRBS7: 740 s->core_registers[offset] = value & 0x00000001; 741 break; 742 case DP_PHY_CLOCK_SELECT: 743 s->core_registers[offset] = value & 0x00000007; 744 break; 745 case DP_SOFTWARE_RESET: 746 /* 747 * No need to update this bit as it's read '0'. 748 */ 749 /* 750 * TODO: reset IP. 751 */ 752 break; 753 case DP_TRANSMITTER_ENABLE: 754 s->core_registers[offset] = value & 0x01; 755 break; 756 case DP_FORCE_SCRAMBLER_RESET: 757 /* 758 * No need to update this bit as it's read '0'. 759 */ 760 /* 761 * TODO: force a scrambler reset?? 762 */ 763 break; 764 case DP_AUX_COMMAND_REGISTER: 765 s->core_registers[offset] = value & 0x00001F0F; 766 xlnx_dp_aux_set_command(s, s->core_registers[offset]); 767 break; 768 case DP_MAIN_STREAM_HTOTAL: 769 case DP_MAIN_STREAM_VTOTAL: 770 case DP_MAIN_STREAM_HSTART: 771 case DP_MAIN_STREAM_VSTART: 772 s->core_registers[offset] = value & 0x0000FFFF; 773 break; 774 case DP_MAIN_STREAM_HRES: 775 case DP_MAIN_STREAM_VRES: 776 s->core_registers[offset] = value & 0x0000FFFF; 777 xlnx_dp_recreate_surface(s); 778 break; 779 case DP_MAIN_STREAM_HSWIDTH: 780 case DP_MAIN_STREAM_VSWIDTH: 781 s->core_registers[offset] = value & 0x00007FFF; 782 break; 783 case DP_MAIN_STREAM_MISC1: 784 s->core_registers[offset] = value & 0x00000086; 785 break; 786 case DP_MAIN_STREAM_M_VID: 787 case DP_MAIN_STREAM_N_VID: 788 s->core_registers[offset] = value & 0x00FFFFFF; 789 break; 790 case DP_MSA_TRANSFER_UNIT_SIZE: 791 case DP_MIN_BYTES_PER_TU: 792 case DP_INIT_WAIT: 793 s->core_registers[offset] = value & 0x00000007; 794 break; 795 case DP_USER_DATA_COUNT_PER_LANE: 796 s->core_registers[offset] = value & 0x0003FFFF; 797 break; 798 case DP_FRAC_BYTES_PER_TU: 799 s->core_registers[offset] = value & 0x000003FF; 800 break; 801 case DP_PHY_RESET: 802 s->core_registers[offset] = value & 0x00010003; 803 /* 804 * TODO: Reset something? 805 */ 806 break; 807 case DP_TX_PHY_POWER_DOWN: 808 s->core_registers[offset] = value & 0x0000000F; 809 /* 810 * TODO: Power down things? 811 */ 812 break; 813 case DP_AUX_WRITE_FIFO: { 814 uint8_t c = value; 815 xlnx_dp_aux_push_tx_fifo(s, &c, 1); 816 break; 817 } 818 case DP_AUX_CLOCK_DIVIDER: 819 break; 820 case DP_AUX_REPLY_COUNT: 821 /* 822 * Writing to this register clear the counter. 823 */ 824 s->core_registers[offset] = 0x00000000; 825 break; 826 case DP_AUX_ADDRESS: 827 s->core_registers[offset] = value & 0x000FFFFF; 828 break; 829 case DP_VERSION_REGISTER: 830 case DP_CORE_ID: 831 case DP_TX_USER_FIFO_OVERFLOW: 832 case DP_AUX_REPLY_DATA: 833 case DP_AUX_REPLY_CODE: 834 case DP_REPLY_DATA_COUNT: 835 case DP_REPLY_STATUS: 836 case DP_HPD_DURATION: 837 /* 838 * Write to read only location.. 839 */ 840 break; 841 case DP_TX_AUDIO_CONTROL: 842 s->core_registers[offset] = value & 0x00000001; 843 xlnx_dp_audio_activate(s); 844 break; 845 case DP_TX_AUDIO_CHANNELS: 846 s->core_registers[offset] = value & 0x00000007; 847 xlnx_dp_audio_activate(s); 848 break; 849 case DP_INT_STATUS: 850 s->core_registers[DP_INT_STATUS] &= ~value; 851 xlnx_dp_update_irq(s); 852 break; 853 case DP_INT_EN: 854 s->core_registers[DP_INT_MASK] &= ~value; 855 xlnx_dp_update_irq(s); 856 break; 857 case DP_INT_DS: 858 s->core_registers[DP_INT_MASK] |= ~value; 859 xlnx_dp_update_irq(s); 860 break; 861 default: 862 assert(offset <= (0x504C >> 2)); 863 s->core_registers[offset] = value; 864 break; 865 } 866 } 867 868 static const MemoryRegionOps dp_ops = { 869 .read = xlnx_dp_read, 870 .write = xlnx_dp_write, 871 .endianness = DEVICE_NATIVE_ENDIAN, 872 .valid = { 873 .min_access_size = 4, 874 .max_access_size = 4, 875 }, 876 .impl = { 877 .min_access_size = 4, 878 .max_access_size = 4, 879 }, 880 }; 881 882 /* 883 * This is to handle Read/Write to the Video Blender. 884 */ 885 static void xlnx_dp_vblend_write(void *opaque, hwaddr offset, 886 uint64_t value, unsigned size) 887 { 888 XlnxDPState *s = XLNX_DP(opaque); 889 bool alpha_was_enabled; 890 891 DPRINTF("vblend: write @0x%" HWADDR_PRIX " = 0x%" PRIX32 "\n", offset, 892 (uint32_t)value); 893 offset = offset >> 2; 894 895 switch (offset) { 896 case V_BLEND_BG_CLR_0: 897 case V_BLEND_BG_CLR_1: 898 case V_BLEND_BG_CLR_2: 899 s->vblend_registers[offset] = value & 0x00000FFF; 900 break; 901 case V_BLEND_SET_GLOBAL_ALPHA_REG: 902 /* 903 * A write to this register can enable or disable blending. Thus we need 904 * to recreate the surfaces. 905 */ 906 alpha_was_enabled = xlnx_dp_global_alpha_enabled(s); 907 s->vblend_registers[offset] = value & 0x000001FF; 908 if (xlnx_dp_global_alpha_enabled(s) != alpha_was_enabled) { 909 xlnx_dp_recreate_surface(s); 910 } 911 break; 912 case V_BLEND_OUTPUT_VID_FORMAT: 913 s->vblend_registers[offset] = value & 0x00000017; 914 break; 915 case V_BLEND_LAYER0_CONTROL: 916 case V_BLEND_LAYER1_CONTROL: 917 s->vblend_registers[offset] = value & 0x00000103; 918 break; 919 case V_BLEND_RGB2YCBCR_COEFF(0): 920 case V_BLEND_RGB2YCBCR_COEFF(1): 921 case V_BLEND_RGB2YCBCR_COEFF(2): 922 case V_BLEND_RGB2YCBCR_COEFF(3): 923 case V_BLEND_RGB2YCBCR_COEFF(4): 924 case V_BLEND_RGB2YCBCR_COEFF(5): 925 case V_BLEND_RGB2YCBCR_COEFF(6): 926 case V_BLEND_RGB2YCBCR_COEFF(7): 927 case V_BLEND_RGB2YCBCR_COEFF(8): 928 case V_BLEND_IN1CSC_COEFF(0): 929 case V_BLEND_IN1CSC_COEFF(1): 930 case V_BLEND_IN1CSC_COEFF(2): 931 case V_BLEND_IN1CSC_COEFF(3): 932 case V_BLEND_IN1CSC_COEFF(4): 933 case V_BLEND_IN1CSC_COEFF(5): 934 case V_BLEND_IN1CSC_COEFF(6): 935 case V_BLEND_IN1CSC_COEFF(7): 936 case V_BLEND_IN1CSC_COEFF(8): 937 case V_BLEND_IN2CSC_COEFF(0): 938 case V_BLEND_IN2CSC_COEFF(1): 939 case V_BLEND_IN2CSC_COEFF(2): 940 case V_BLEND_IN2CSC_COEFF(3): 941 case V_BLEND_IN2CSC_COEFF(4): 942 case V_BLEND_IN2CSC_COEFF(5): 943 case V_BLEND_IN2CSC_COEFF(6): 944 case V_BLEND_IN2CSC_COEFF(7): 945 case V_BLEND_IN2CSC_COEFF(8): 946 s->vblend_registers[offset] = value & 0x0000FFFF; 947 break; 948 case V_BLEND_LUMA_IN1CSC_OFFSET: 949 case V_BLEND_CR_IN1CSC_OFFSET: 950 case V_BLEND_CB_IN1CSC_OFFSET: 951 case V_BLEND_LUMA_IN2CSC_OFFSET: 952 case V_BLEND_CR_IN2CSC_OFFSET: 953 case V_BLEND_CB_IN2CSC_OFFSET: 954 case V_BLEND_LUMA_OUTCSC_OFFSET: 955 case V_BLEND_CR_OUTCSC_OFFSET: 956 case V_BLEND_CB_OUTCSC_OFFSET: 957 s->vblend_registers[offset] = value & 0x3FFF7FFF; 958 break; 959 case V_BLEND_CHROMA_KEY_ENABLE: 960 s->vblend_registers[offset] = value & 0x00000003; 961 break; 962 case V_BLEND_CHROMA_KEY_COMP1: 963 case V_BLEND_CHROMA_KEY_COMP2: 964 case V_BLEND_CHROMA_KEY_COMP3: 965 s->vblend_registers[offset] = value & 0x0FFF0FFF; 966 break; 967 default: 968 s->vblend_registers[offset] = value; 969 break; 970 } 971 } 972 973 static uint64_t xlnx_dp_vblend_read(void *opaque, hwaddr offset, 974 unsigned size) 975 { 976 XlnxDPState *s = XLNX_DP(opaque); 977 978 DPRINTF("vblend: read @0x%" HWADDR_PRIX " = 0x%" PRIX32 "\n", offset, 979 s->vblend_registers[offset >> 2]); 980 return s->vblend_registers[offset >> 2]; 981 } 982 983 static const MemoryRegionOps vblend_ops = { 984 .read = xlnx_dp_vblend_read, 985 .write = xlnx_dp_vblend_write, 986 .endianness = DEVICE_NATIVE_ENDIAN, 987 .valid = { 988 .min_access_size = 4, 989 .max_access_size = 4, 990 }, 991 .impl = { 992 .min_access_size = 4, 993 .max_access_size = 4, 994 }, 995 }; 996 997 /* 998 * This is to handle Read/Write to the Audio Video buffer manager. 999 */ 1000 static void xlnx_dp_avbufm_write(void *opaque, hwaddr offset, uint64_t value, 1001 unsigned size) 1002 { 1003 XlnxDPState *s = XLNX_DP(opaque); 1004 1005 DPRINTF("avbufm: write @0x%" HWADDR_PRIX " = 0x%" PRIX32 "\n", offset, 1006 (uint32_t)value); 1007 offset = offset >> 2; 1008 1009 switch (offset) { 1010 case AV_BUF_FORMAT: 1011 s->avbufm_registers[offset] = value & 0x00000FFF; 1012 xlnx_dp_change_graphic_fmt(s); 1013 break; 1014 case AV_CHBUF0: 1015 case AV_CHBUF1: 1016 case AV_CHBUF2: 1017 case AV_CHBUF3: 1018 case AV_CHBUF4: 1019 case AV_CHBUF5: 1020 s->avbufm_registers[offset] = value & 0x0000007F; 1021 break; 1022 case AV_BUF_OUTPUT_AUDIO_VIDEO_SELECT: 1023 s->avbufm_registers[offset] = value & 0x0000007F; 1024 break; 1025 case AV_BUF_DITHER_CONFIG: 1026 s->avbufm_registers[offset] = value & 0x000007FF; 1027 break; 1028 case AV_BUF_DITHER_CONFIG_MAX: 1029 case AV_BUF_DITHER_CONFIG_MIN: 1030 s->avbufm_registers[offset] = value & 0x00000FFF; 1031 break; 1032 case AV_BUF_PATTERN_GEN_SELECT: 1033 s->avbufm_registers[offset] = value & 0xFFFFFF03; 1034 break; 1035 case AV_BUF_AUD_VID_CLK_SOURCE: 1036 s->avbufm_registers[offset] = value & 0x00000007; 1037 break; 1038 case AV_BUF_SRST_REG: 1039 s->avbufm_registers[offset] = value & 0x00000002; 1040 break; 1041 case AV_BUF_AUDIO_CH_CONFIG: 1042 s->avbufm_registers[offset] = value & 0x00000003; 1043 break; 1044 case AV_BUF_GRAPHICS_COMP_SCALE_FACTOR(0): 1045 case AV_BUF_GRAPHICS_COMP_SCALE_FACTOR(1): 1046 case AV_BUF_GRAPHICS_COMP_SCALE_FACTOR(2): 1047 case AV_BUF_VIDEO_COMP_SCALE_FACTOR(0): 1048 case AV_BUF_VIDEO_COMP_SCALE_FACTOR(1): 1049 case AV_BUF_VIDEO_COMP_SCALE_FACTOR(2): 1050 s->avbufm_registers[offset] = value & 0x0000FFFF; 1051 break; 1052 case AV_BUF_LIVE_VIDEO_COMP_SF(0): 1053 case AV_BUF_LIVE_VIDEO_COMP_SF(1): 1054 case AV_BUF_LIVE_VIDEO_COMP_SF(2): 1055 case AV_BUF_LIVE_VID_CONFIG: 1056 case AV_BUF_LIVE_GFX_COMP_SF(0): 1057 case AV_BUF_LIVE_GFX_COMP_SF(1): 1058 case AV_BUF_LIVE_GFX_COMP_SF(2): 1059 case AV_BUF_LIVE_GFX_CONFIG: 1060 case AV_BUF_NON_LIVE_LATENCY: 1061 case AV_BUF_STC_CONTROL: 1062 case AV_BUF_STC_INIT_VALUE0: 1063 case AV_BUF_STC_INIT_VALUE1: 1064 case AV_BUF_STC_ADJ: 1065 case AV_BUF_STC_VIDEO_VSYNC_TS_REG0: 1066 case AV_BUF_STC_VIDEO_VSYNC_TS_REG1: 1067 case AV_BUF_STC_EXT_VSYNC_TS_REG0: 1068 case AV_BUF_STC_EXT_VSYNC_TS_REG1: 1069 case AV_BUF_STC_CUSTOM_EVENT_TS_REG0: 1070 case AV_BUF_STC_CUSTOM_EVENT_TS_REG1: 1071 case AV_BUF_STC_CUSTOM_EVENT2_TS_REG0: 1072 case AV_BUF_STC_CUSTOM_EVENT2_TS_REG1: 1073 case AV_BUF_STC_SNAPSHOT0: 1074 case AV_BUF_STC_SNAPSHOT1: 1075 case AV_BUF_HCOUNT_VCOUNT_INT0: 1076 case AV_BUF_HCOUNT_VCOUNT_INT1: 1077 qemu_log_mask(LOG_UNIMP, "avbufm: unimplemented register 0x%04" 1078 PRIx64 "\n", 1079 offset << 2); 1080 break; 1081 default: 1082 s->avbufm_registers[offset] = value; 1083 break; 1084 } 1085 } 1086 1087 static uint64_t xlnx_dp_avbufm_read(void *opaque, hwaddr offset, 1088 unsigned size) 1089 { 1090 XlnxDPState *s = XLNX_DP(opaque); 1091 1092 offset = offset >> 2; 1093 return s->avbufm_registers[offset]; 1094 } 1095 1096 static const MemoryRegionOps avbufm_ops = { 1097 .read = xlnx_dp_avbufm_read, 1098 .write = xlnx_dp_avbufm_write, 1099 .endianness = DEVICE_NATIVE_ENDIAN, 1100 .valid = { 1101 .min_access_size = 4, 1102 .max_access_size = 4, 1103 }, 1104 .impl = { 1105 .min_access_size = 4, 1106 .max_access_size = 4, 1107 }, 1108 }; 1109 1110 /* 1111 * This is a global alpha blending using pixman. 1112 * Both graphic and video planes are multiplied with the global alpha 1113 * coefficient and added. 1114 */ 1115 static inline void xlnx_dp_blend_surface(XlnxDPState *s) 1116 { 1117 pixman_fixed_t alpha1[] = { pixman_double_to_fixed(1), 1118 pixman_double_to_fixed(1), 1119 pixman_double_to_fixed(1.0) }; 1120 pixman_fixed_t alpha2[] = { pixman_double_to_fixed(1), 1121 pixman_double_to_fixed(1), 1122 pixman_double_to_fixed(1.0) }; 1123 1124 if ((surface_width(s->g_plane.surface) 1125 != surface_width(s->v_plane.surface)) || 1126 (surface_height(s->g_plane.surface) 1127 != surface_height(s->v_plane.surface))) { 1128 return; 1129 } 1130 1131 alpha1[2] = pixman_double_to_fixed((double)(xlnx_dp_global_alpha_value(s)) 1132 / 256.0); 1133 alpha2[2] = pixman_double_to_fixed((255.0 1134 - (double)xlnx_dp_global_alpha_value(s)) 1135 / 256.0); 1136 1137 pixman_image_set_filter(s->g_plane.surface->image, 1138 PIXMAN_FILTER_CONVOLUTION, alpha1, 3); 1139 pixman_image_composite(PIXMAN_OP_SRC, s->g_plane.surface->image, 0, 1140 s->bout_plane.surface->image, 0, 0, 0, 0, 0, 0, 1141 surface_width(s->g_plane.surface), 1142 surface_height(s->g_plane.surface)); 1143 pixman_image_set_filter(s->v_plane.surface->image, 1144 PIXMAN_FILTER_CONVOLUTION, alpha2, 3); 1145 pixman_image_composite(PIXMAN_OP_ADD, s->v_plane.surface->image, 0, 1146 s->bout_plane.surface->image, 0, 0, 0, 0, 0, 0, 1147 surface_width(s->g_plane.surface), 1148 surface_height(s->g_plane.surface)); 1149 } 1150 1151 static void xlnx_dp_update_display(void *opaque) 1152 { 1153 XlnxDPState *s = XLNX_DP(opaque); 1154 1155 if ((s->core_registers[DP_TRANSMITTER_ENABLE] & 0x01) == 0) { 1156 return; 1157 } 1158 1159 s->core_registers[DP_INT_STATUS] |= (1 << 13); 1160 xlnx_dp_update_irq(s); 1161 1162 xlnx_dpdma_trigger_vsync_irq(s->dpdma); 1163 1164 /* 1165 * Trigger the DMA channel. 1166 */ 1167 if (!xlnx_dpdma_start_operation(s->dpdma, 3, false)) { 1168 /* 1169 * An error occurred don't do anything with the data.. 1170 * Trigger an underflow interrupt. 1171 */ 1172 s->core_registers[DP_INT_STATUS] |= (1 << 21); 1173 xlnx_dp_update_irq(s); 1174 return; 1175 } 1176 1177 if (xlnx_dp_global_alpha_enabled(s)) { 1178 if (!xlnx_dpdma_start_operation(s->dpdma, 0, false)) { 1179 s->core_registers[DP_INT_STATUS] |= (1 << 21); 1180 xlnx_dp_update_irq(s); 1181 return; 1182 } 1183 xlnx_dp_blend_surface(s); 1184 } 1185 1186 /* 1187 * XXX: We might want to update only what changed. 1188 */ 1189 dpy_gfx_update_full(s->console); 1190 } 1191 1192 static const GraphicHwOps xlnx_dp_gfx_ops = { 1193 .gfx_update = xlnx_dp_update_display, 1194 }; 1195 1196 static void xlnx_dp_init(Object *obj) 1197 { 1198 SysBusDevice *sbd = SYS_BUS_DEVICE(obj); 1199 XlnxDPState *s = XLNX_DP(obj); 1200 1201 memory_region_init(&s->container, obj, TYPE_XLNX_DP, 0xC050); 1202 1203 memory_region_init_io(&s->core_iomem, obj, &dp_ops, s, TYPE_XLNX_DP 1204 ".core", 0x3AF); 1205 memory_region_add_subregion(&s->container, 0x0000, &s->core_iomem); 1206 1207 memory_region_init_io(&s->vblend_iomem, obj, &vblend_ops, s, TYPE_XLNX_DP 1208 ".v_blend", 0x1DF); 1209 memory_region_add_subregion(&s->container, 0xA000, &s->vblend_iomem); 1210 1211 memory_region_init_io(&s->avbufm_iomem, obj, &avbufm_ops, s, TYPE_XLNX_DP 1212 ".av_buffer_manager", 0x238); 1213 memory_region_add_subregion(&s->container, 0xB000, &s->avbufm_iomem); 1214 1215 memory_region_init_io(&s->audio_iomem, obj, &audio_ops, s, TYPE_XLNX_DP 1216 ".audio", sizeof(s->audio_registers)); 1217 memory_region_add_subregion(&s->container, 0xC000, &s->audio_iomem); 1218 1219 sysbus_init_mmio(sbd, &s->container); 1220 sysbus_init_irq(sbd, &s->irq); 1221 1222 object_property_add_link(obj, "dpdma", TYPE_XLNX_DPDMA, 1223 (Object **) &s->dpdma, 1224 xlnx_dp_set_dpdma, 1225 OBJ_PROP_LINK_STRONG, 1226 &error_abort); 1227 1228 /* 1229 * Initialize AUX Bus. 1230 */ 1231 s->aux_bus = aux_init_bus(DEVICE(obj), "aux"); 1232 1233 /* 1234 * Initialize DPCD and EDID.. 1235 */ 1236 s->dpcd = DPCD(aux_create_slave(s->aux_bus, "dpcd")); 1237 object_property_add_child(OBJECT(s), "dpcd", OBJECT(s->dpcd), NULL); 1238 1239 s->edid = I2CDDC(qdev_create(BUS(aux_get_i2c_bus(s->aux_bus)), "i2c-ddc")); 1240 i2c_set_slave_address(I2C_SLAVE(s->edid), 0x50); 1241 object_property_add_child(OBJECT(s), "edid", OBJECT(s->edid), NULL); 1242 1243 fifo8_create(&s->rx_fifo, 16); 1244 fifo8_create(&s->tx_fifo, 16); 1245 } 1246 1247 static void xlnx_dp_realize(DeviceState *dev, Error **errp) 1248 { 1249 XlnxDPState *s = XLNX_DP(dev); 1250 DisplaySurface *surface; 1251 struct audsettings as; 1252 1253 qdev_init_nofail(DEVICE(s->dpcd)); 1254 aux_map_slave(AUX_SLAVE(s->dpcd), 0x0000); 1255 1256 s->console = graphic_console_init(dev, 0, &xlnx_dp_gfx_ops, s); 1257 surface = qemu_console_surface(s->console); 1258 xlnx_dpdma_set_host_data_location(s->dpdma, DP_GRAPHIC_DMA_CHANNEL, 1259 surface_data(surface)); 1260 1261 as.freq = 44100; 1262 as.nchannels = 2; 1263 as.fmt = AUD_FMT_S16; 1264 as.endianness = 0; 1265 1266 AUD_register_card("xlnx_dp.audio", &s->aud_card); 1267 1268 s->amixer_output_stream = AUD_open_out(&s->aud_card, 1269 s->amixer_output_stream, 1270 "xlnx_dp.audio.out", 1271 s, 1272 xlnx_dp_audio_callback, 1273 &as); 1274 AUD_set_volume_out(s->amixer_output_stream, 0, 255, 255); 1275 xlnx_dp_audio_activate(s); 1276 } 1277 1278 static void xlnx_dp_reset(DeviceState *dev) 1279 { 1280 XlnxDPState *s = XLNX_DP(dev); 1281 1282 memset(s->core_registers, 0, sizeof(s->core_registers)); 1283 s->core_registers[DP_VERSION_REGISTER] = 0x04010000; 1284 s->core_registers[DP_CORE_ID] = 0x01020000; 1285 s->core_registers[DP_REPLY_STATUS] = 0x00000010; 1286 s->core_registers[DP_MSA_TRANSFER_UNIT_SIZE] = 0x00000040; 1287 s->core_registers[DP_INIT_WAIT] = 0x00000020; 1288 s->core_registers[DP_PHY_RESET] = 0x00010003; 1289 s->core_registers[DP_INT_MASK] = 0xFFFFF03F; 1290 s->core_registers[DP_PHY_STATUS] = 0x00000043; 1291 s->core_registers[DP_INTERRUPT_SIGNAL_STATE] = 0x00000001; 1292 1293 s->vblend_registers[V_BLEND_RGB2YCBCR_COEFF(0)] = 0x00001000; 1294 s->vblend_registers[V_BLEND_RGB2YCBCR_COEFF(4)] = 0x00001000; 1295 s->vblend_registers[V_BLEND_RGB2YCBCR_COEFF(8)] = 0x00001000; 1296 s->vblend_registers[V_BLEND_IN1CSC_COEFF(0)] = 0x00001000; 1297 s->vblend_registers[V_BLEND_IN1CSC_COEFF(4)] = 0x00001000; 1298 s->vblend_registers[V_BLEND_IN1CSC_COEFF(8)] = 0x00001000; 1299 s->vblend_registers[V_BLEND_IN2CSC_COEFF(0)] = 0x00001000; 1300 s->vblend_registers[V_BLEND_IN2CSC_COEFF(4)] = 0x00001000; 1301 s->vblend_registers[V_BLEND_IN2CSC_COEFF(8)] = 0x00001000; 1302 1303 s->avbufm_registers[AV_BUF_NON_LIVE_LATENCY] = 0x00000180; 1304 s->avbufm_registers[AV_BUF_OUTPUT_AUDIO_VIDEO_SELECT] = 0x00000008; 1305 s->avbufm_registers[AV_BUF_DITHER_CONFIG_MAX] = 0x00000FFF; 1306 s->avbufm_registers[AV_BUF_GRAPHICS_COMP_SCALE_FACTOR(0)] = 0x00010101; 1307 s->avbufm_registers[AV_BUF_GRAPHICS_COMP_SCALE_FACTOR(1)] = 0x00010101; 1308 s->avbufm_registers[AV_BUF_GRAPHICS_COMP_SCALE_FACTOR(2)] = 0x00010101; 1309 s->avbufm_registers[AV_BUF_VIDEO_COMP_SCALE_FACTOR(0)] = 0x00010101; 1310 s->avbufm_registers[AV_BUF_VIDEO_COMP_SCALE_FACTOR(1)] = 0x00010101; 1311 s->avbufm_registers[AV_BUF_VIDEO_COMP_SCALE_FACTOR(2)] = 0x00010101; 1312 s->avbufm_registers[AV_BUF_LIVE_VIDEO_COMP_SF(0)] = 0x00010101; 1313 s->avbufm_registers[AV_BUF_LIVE_VIDEO_COMP_SF(1)] = 0x00010101; 1314 s->avbufm_registers[AV_BUF_LIVE_VIDEO_COMP_SF(2)] = 0x00010101; 1315 s->avbufm_registers[AV_BUF_LIVE_GFX_COMP_SF(0)] = 0x00010101; 1316 s->avbufm_registers[AV_BUF_LIVE_GFX_COMP_SF(1)] = 0x00010101; 1317 s->avbufm_registers[AV_BUF_LIVE_GFX_COMP_SF(2)] = 0x00010101; 1318 1319 memset(s->audio_registers, 0, sizeof(s->audio_registers)); 1320 s->byte_left = 0; 1321 1322 xlnx_dp_aux_clear_rx_fifo(s); 1323 xlnx_dp_change_graphic_fmt(s); 1324 xlnx_dp_update_irq(s); 1325 } 1326 1327 static void xlnx_dp_class_init(ObjectClass *oc, void *data) 1328 { 1329 DeviceClass *dc = DEVICE_CLASS(oc); 1330 1331 dc->realize = xlnx_dp_realize; 1332 dc->vmsd = &vmstate_dp; 1333 dc->reset = xlnx_dp_reset; 1334 } 1335 1336 static const TypeInfo xlnx_dp_info = { 1337 .name = TYPE_XLNX_DP, 1338 .parent = TYPE_SYS_BUS_DEVICE, 1339 .instance_size = sizeof(XlnxDPState), 1340 .instance_init = xlnx_dp_init, 1341 .class_init = xlnx_dp_class_init, 1342 }; 1343 1344 static void xlnx_dp_register_types(void) 1345 { 1346 type_register_static(&xlnx_dp_info); 1347 } 1348 1349 type_init(xlnx_dp_register_types) 1350