1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Copyright (C) STMicroelectronics SA 2014 4 * Authors: Fabien Dessenne <fabien.dessenne@st.com> for STMicroelectronics. 5 */ 6 7 #include <linux/component.h> 8 #include <linux/delay.h> 9 #include <linux/dma-mapping.h> 10 #include <linux/firmware.h> 11 #include <linux/io.h> 12 #include <linux/module.h> 13 #include <linux/reset.h> 14 #include <linux/seq_file.h> 15 16 #include <drm/drm_atomic.h> 17 #include <drm/drm_device.h> 18 #include <drm/drm_fb_cma_helper.h> 19 #include <drm/drm_fourcc.h> 20 #include <drm/drm_gem_cma_helper.h> 21 22 #include "sti_compositor.h" 23 #include "sti_drv.h" 24 #include "sti_hqvdp_lut.h" 25 #include "sti_plane.h" 26 #include "sti_vtg.h" 27 28 /* Firmware name */ 29 #define HQVDP_FMW_NAME "hqvdp-stih407.bin" 30 31 /* Regs address */ 32 #define HQVDP_DMEM 0x00000000 /* 0x00000000 */ 33 #define HQVDP_PMEM 0x00040000 /* 0x00040000 */ 34 #define HQVDP_RD_PLUG 0x000E0000 /* 0x000E0000 */ 35 #define HQVDP_RD_PLUG_CONTROL (HQVDP_RD_PLUG + 0x1000) /* 0x000E1000 */ 36 #define HQVDP_RD_PLUG_PAGE_SIZE (HQVDP_RD_PLUG + 0x1004) /* 0x000E1004 */ 37 #define HQVDP_RD_PLUG_MIN_OPC (HQVDP_RD_PLUG + 0x1008) /* 0x000E1008 */ 38 #define HQVDP_RD_PLUG_MAX_OPC (HQVDP_RD_PLUG + 0x100C) /* 0x000E100C */ 39 #define HQVDP_RD_PLUG_MAX_CHK (HQVDP_RD_PLUG + 0x1010) /* 0x000E1010 */ 40 #define HQVDP_RD_PLUG_MAX_MSG (HQVDP_RD_PLUG + 0x1014) /* 0x000E1014 */ 41 #define HQVDP_RD_PLUG_MIN_SPACE (HQVDP_RD_PLUG + 0x1018) /* 0x000E1018 */ 42 #define HQVDP_WR_PLUG 0x000E2000 /* 0x000E2000 */ 43 #define HQVDP_WR_PLUG_CONTROL (HQVDP_WR_PLUG + 0x1000) /* 0x000E3000 */ 44 #define HQVDP_WR_PLUG_PAGE_SIZE (HQVDP_WR_PLUG + 0x1004) /* 0x000E3004 */ 45 #define HQVDP_WR_PLUG_MIN_OPC (HQVDP_WR_PLUG + 0x1008) /* 0x000E3008 */ 46 #define HQVDP_WR_PLUG_MAX_OPC (HQVDP_WR_PLUG + 0x100C) /* 0x000E300C */ 47 #define HQVDP_WR_PLUG_MAX_CHK (HQVDP_WR_PLUG + 0x1010) /* 0x000E3010 */ 48 #define HQVDP_WR_PLUG_MAX_MSG (HQVDP_WR_PLUG + 0x1014) /* 0x000E3014 */ 49 #define HQVDP_WR_PLUG_MIN_SPACE (HQVDP_WR_PLUG + 0x1018) /* 0x000E3018 */ 50 #define HQVDP_MBX 0x000E4000 /* 0x000E4000 */ 51 #define HQVDP_MBX_IRQ_TO_XP70 (HQVDP_MBX + 0x0000) /* 0x000E4000 */ 52 #define HQVDP_MBX_INFO_HOST (HQVDP_MBX + 0x0004) /* 0x000E4004 */ 53 #define HQVDP_MBX_IRQ_TO_HOST (HQVDP_MBX + 0x0008) /* 0x000E4008 */ 54 #define HQVDP_MBX_INFO_XP70 (HQVDP_MBX + 0x000C) /* 0x000E400C */ 55 #define HQVDP_MBX_SW_RESET_CTRL (HQVDP_MBX + 0x0010) /* 0x000E4010 */ 56 #define HQVDP_MBX_STARTUP_CTRL1 (HQVDP_MBX + 0x0014) /* 0x000E4014 */ 57 #define HQVDP_MBX_STARTUP_CTRL2 (HQVDP_MBX + 0x0018) /* 0x000E4018 */ 58 #define HQVDP_MBX_GP_STATUS (HQVDP_MBX + 0x001C) /* 0x000E401C */ 59 #define HQVDP_MBX_NEXT_CMD (HQVDP_MBX + 0x0020) /* 0x000E4020 */ 60 #define HQVDP_MBX_CURRENT_CMD (HQVDP_MBX + 0x0024) /* 0x000E4024 */ 61 #define HQVDP_MBX_SOFT_VSYNC (HQVDP_MBX + 0x0028) /* 0x000E4028 */ 62 63 /* Plugs config */ 64 #define PLUG_CONTROL_ENABLE 0x00000001 65 #define PLUG_PAGE_SIZE_256 0x00000002 66 #define PLUG_MIN_OPC_8 0x00000003 67 #define PLUG_MAX_OPC_64 0x00000006 68 #define PLUG_MAX_CHK_2X 0x00000001 69 #define PLUG_MAX_MSG_1X 0x00000000 70 #define PLUG_MIN_SPACE_1 0x00000000 71 72 /* SW reset CTRL */ 73 #define SW_RESET_CTRL_FULL BIT(0) 74 #define SW_RESET_CTRL_CORE BIT(1) 75 76 /* Startup ctrl 1 */ 77 #define STARTUP_CTRL1_RST_DONE BIT(0) 78 #define STARTUP_CTRL1_AUTH_IDLE BIT(2) 79 80 /* Startup ctrl 2 */ 81 #define STARTUP_CTRL2_FETCH_EN BIT(1) 82 83 /* Info xP70 */ 84 #define INFO_XP70_FW_READY BIT(15) 85 #define INFO_XP70_FW_PROCESSING BIT(14) 86 #define INFO_XP70_FW_INITQUEUES BIT(13) 87 88 /* SOFT_VSYNC */ 89 #define SOFT_VSYNC_HW 0x00000000 90 #define SOFT_VSYNC_SW_CMD 0x00000001 91 #define SOFT_VSYNC_SW_CTRL_IRQ 0x00000003 92 93 /* Reset & boot poll config */ 94 #define POLL_MAX_ATTEMPT 50 95 #define POLL_DELAY_MS 20 96 97 #define SCALE_FACTOR 8192 98 #define SCALE_MAX_FOR_LEG_LUT_F 4096 99 #define SCALE_MAX_FOR_LEG_LUT_E 4915 100 #define SCALE_MAX_FOR_LEG_LUT_D 6654 101 #define SCALE_MAX_FOR_LEG_LUT_C 8192 102 103 enum sti_hvsrc_orient { 104 HVSRC_HORI, 105 HVSRC_VERT 106 }; 107 108 /* Command structures */ 109 struct sti_hqvdp_top { 110 u32 config; 111 u32 mem_format; 112 u32 current_luma; 113 u32 current_enh_luma; 114 u32 current_right_luma; 115 u32 current_enh_right_luma; 116 u32 current_chroma; 117 u32 current_enh_chroma; 118 u32 current_right_chroma; 119 u32 current_enh_right_chroma; 120 u32 output_luma; 121 u32 output_chroma; 122 u32 luma_src_pitch; 123 u32 luma_enh_src_pitch; 124 u32 luma_right_src_pitch; 125 u32 luma_enh_right_src_pitch; 126 u32 chroma_src_pitch; 127 u32 chroma_enh_src_pitch; 128 u32 chroma_right_src_pitch; 129 u32 chroma_enh_right_src_pitch; 130 u32 luma_processed_pitch; 131 u32 chroma_processed_pitch; 132 u32 input_frame_size; 133 u32 input_viewport_ori; 134 u32 input_viewport_ori_right; 135 u32 input_viewport_size; 136 u32 left_view_border_width; 137 u32 right_view_border_width; 138 u32 left_view_3d_offset_width; 139 u32 right_view_3d_offset_width; 140 u32 side_stripe_color; 141 u32 crc_reset_ctrl; 142 }; 143 144 /* Configs for interlaced : no IT, no pass thru, 3 fields */ 145 #define TOP_CONFIG_INTER_BTM 0x00000000 146 #define TOP_CONFIG_INTER_TOP 0x00000002 147 148 /* Config for progressive : no IT, no pass thru, 3 fields */ 149 #define TOP_CONFIG_PROGRESSIVE 0x00000001 150 151 /* Default MemFormat: in=420_raster_dual out=444_raster;opaque Mem2Tv mode */ 152 #define TOP_MEM_FORMAT_DFLT 0x00018060 153 154 /* Min/Max size */ 155 #define MAX_WIDTH 0x1FFF 156 #define MAX_HEIGHT 0x0FFF 157 #define MIN_WIDTH 0x0030 158 #define MIN_HEIGHT 0x0010 159 160 struct sti_hqvdp_vc1re { 161 u32 ctrl_prv_csdi; 162 u32 ctrl_cur_csdi; 163 u32 ctrl_nxt_csdi; 164 u32 ctrl_cur_fmd; 165 u32 ctrl_nxt_fmd; 166 }; 167 168 struct sti_hqvdp_fmd { 169 u32 config; 170 u32 viewport_ori; 171 u32 viewport_size; 172 u32 next_next_luma; 173 u32 next_next_right_luma; 174 u32 next_next_next_luma; 175 u32 next_next_next_right_luma; 176 u32 threshold_scd; 177 u32 threshold_rfd; 178 u32 threshold_move; 179 u32 threshold_cfd; 180 }; 181 182 struct sti_hqvdp_csdi { 183 u32 config; 184 u32 config2; 185 u32 dcdi_config; 186 u32 prev_luma; 187 u32 prev_enh_luma; 188 u32 prev_right_luma; 189 u32 prev_enh_right_luma; 190 u32 next_luma; 191 u32 next_enh_luma; 192 u32 next_right_luma; 193 u32 next_enh_right_luma; 194 u32 prev_chroma; 195 u32 prev_enh_chroma; 196 u32 prev_right_chroma; 197 u32 prev_enh_right_chroma; 198 u32 next_chroma; 199 u32 next_enh_chroma; 200 u32 next_right_chroma; 201 u32 next_enh_right_chroma; 202 u32 prev_motion; 203 u32 prev_right_motion; 204 u32 cur_motion; 205 u32 cur_right_motion; 206 u32 next_motion; 207 u32 next_right_motion; 208 }; 209 210 /* Config for progressive: by pass */ 211 #define CSDI_CONFIG_PROG 0x00000000 212 /* Config for directional deinterlacing without motion */ 213 #define CSDI_CONFIG_INTER_DIR 0x00000016 214 /* Additional configs for fader, blender, motion,... deinterlace algorithms */ 215 #define CSDI_CONFIG2_DFLT 0x000001B3 216 #define CSDI_DCDI_CONFIG_DFLT 0x00203803 217 218 struct sti_hqvdp_hvsrc { 219 u32 hor_panoramic_ctrl; 220 u32 output_picture_size; 221 u32 init_horizontal; 222 u32 init_vertical; 223 u32 param_ctrl; 224 u32 yh_coef[NB_COEF]; 225 u32 ch_coef[NB_COEF]; 226 u32 yv_coef[NB_COEF]; 227 u32 cv_coef[NB_COEF]; 228 u32 hori_shift; 229 u32 vert_shift; 230 }; 231 232 /* Default ParamCtrl: all controls enabled */ 233 #define HVSRC_PARAM_CTRL_DFLT 0xFFFFFFFF 234 235 struct sti_hqvdp_iqi { 236 u32 config; 237 u32 demo_wind_size; 238 u32 pk_config; 239 u32 coeff0_coeff1; 240 u32 coeff2_coeff3; 241 u32 coeff4; 242 u32 pk_lut; 243 u32 pk_gain; 244 u32 pk_coring_level; 245 u32 cti_config; 246 u32 le_config; 247 u32 le_lut[64]; 248 u32 con_bri; 249 u32 sat_gain; 250 u32 pxf_conf; 251 u32 default_color; 252 }; 253 254 /* Default Config : IQI bypassed */ 255 #define IQI_CONFIG_DFLT 0x00000001 256 /* Default Contrast & Brightness gain = 256 */ 257 #define IQI_CON_BRI_DFLT 0x00000100 258 /* Default Saturation gain = 256 */ 259 #define IQI_SAT_GAIN_DFLT 0x00000100 260 /* Default PxfConf : P2I bypassed */ 261 #define IQI_PXF_CONF_DFLT 0x00000001 262 263 struct sti_hqvdp_top_status { 264 u32 processing_time; 265 u32 input_y_crc; 266 u32 input_uv_crc; 267 }; 268 269 struct sti_hqvdp_fmd_status { 270 u32 fmd_repeat_move_status; 271 u32 fmd_scene_count_status; 272 u32 cfd_sum; 273 u32 field_sum; 274 u32 next_y_fmd_crc; 275 u32 next_next_y_fmd_crc; 276 u32 next_next_next_y_fmd_crc; 277 }; 278 279 struct sti_hqvdp_csdi_status { 280 u32 prev_y_csdi_crc; 281 u32 cur_y_csdi_crc; 282 u32 next_y_csdi_crc; 283 u32 prev_uv_csdi_crc; 284 u32 cur_uv_csdi_crc; 285 u32 next_uv_csdi_crc; 286 u32 y_csdi_crc; 287 u32 uv_csdi_crc; 288 u32 uv_cup_crc; 289 u32 mot_csdi_crc; 290 u32 mot_cur_csdi_crc; 291 u32 mot_prev_csdi_crc; 292 }; 293 294 struct sti_hqvdp_hvsrc_status { 295 u32 y_hvsrc_crc; 296 u32 u_hvsrc_crc; 297 u32 v_hvsrc_crc; 298 }; 299 300 struct sti_hqvdp_iqi_status { 301 u32 pxf_it_status; 302 u32 y_iqi_crc; 303 u32 u_iqi_crc; 304 u32 v_iqi_crc; 305 }; 306 307 /* Main commands. We use 2 commands one being processed by the firmware, one 308 * ready to be fetched upon next Vsync*/ 309 #define NB_VDP_CMD 2 310 311 struct sti_hqvdp_cmd { 312 struct sti_hqvdp_top top; 313 struct sti_hqvdp_vc1re vc1re; 314 struct sti_hqvdp_fmd fmd; 315 struct sti_hqvdp_csdi csdi; 316 struct sti_hqvdp_hvsrc hvsrc; 317 struct sti_hqvdp_iqi iqi; 318 struct sti_hqvdp_top_status top_status; 319 struct sti_hqvdp_fmd_status fmd_status; 320 struct sti_hqvdp_csdi_status csdi_status; 321 struct sti_hqvdp_hvsrc_status hvsrc_status; 322 struct sti_hqvdp_iqi_status iqi_status; 323 }; 324 325 /* 326 * STI HQVDP structure 327 * 328 * @dev: driver device 329 * @drm_dev: the drm device 330 * @regs: registers 331 * @plane: plane structure for hqvdp it self 332 * @clk: IP clock 333 * @clk_pix_main: pix main clock 334 * @reset: reset control 335 * @vtg_nb: notifier to handle VTG Vsync 336 * @btm_field_pending: is there any bottom field (interlaced frame) to display 337 * @hqvdp_cmd: buffer of commands 338 * @hqvdp_cmd_paddr: physical address of hqvdp_cmd 339 * @vtg: vtg for main data path 340 * @xp70_initialized: true if xp70 is already initialized 341 * @vtg_registered: true if registered to VTG 342 */ 343 struct sti_hqvdp { 344 struct device *dev; 345 struct drm_device *drm_dev; 346 void __iomem *regs; 347 struct sti_plane plane; 348 struct clk *clk; 349 struct clk *clk_pix_main; 350 struct reset_control *reset; 351 struct notifier_block vtg_nb; 352 bool btm_field_pending; 353 void *hqvdp_cmd; 354 u32 hqvdp_cmd_paddr; 355 struct sti_vtg *vtg; 356 bool xp70_initialized; 357 bool vtg_registered; 358 }; 359 360 #define to_sti_hqvdp(x) container_of(x, struct sti_hqvdp, plane) 361 362 static const uint32_t hqvdp_supported_formats[] = { 363 DRM_FORMAT_NV12, 364 }; 365 366 /** 367 * sti_hqvdp_get_free_cmd 368 * @hqvdp: hqvdp structure 369 * 370 * Look for a hqvdp_cmd that is not being used (or about to be used) by the FW. 371 * 372 * RETURNS: 373 * the offset of the command to be used. 374 * -1 in error cases 375 */ 376 static int sti_hqvdp_get_free_cmd(struct sti_hqvdp *hqvdp) 377 { 378 u32 curr_cmd, next_cmd; 379 u32 cmd = hqvdp->hqvdp_cmd_paddr; 380 int i; 381 382 curr_cmd = readl(hqvdp->regs + HQVDP_MBX_CURRENT_CMD); 383 next_cmd = readl(hqvdp->regs + HQVDP_MBX_NEXT_CMD); 384 385 for (i = 0; i < NB_VDP_CMD; i++) { 386 if ((cmd != curr_cmd) && (cmd != next_cmd)) 387 return i * sizeof(struct sti_hqvdp_cmd); 388 cmd += sizeof(struct sti_hqvdp_cmd); 389 } 390 391 return -1; 392 } 393 394 /** 395 * sti_hqvdp_get_curr_cmd 396 * @hqvdp: hqvdp structure 397 * 398 * Look for the hqvdp_cmd that is being used by the FW. 399 * 400 * RETURNS: 401 * the offset of the command to be used. 402 * -1 in error cases 403 */ 404 static int sti_hqvdp_get_curr_cmd(struct sti_hqvdp *hqvdp) 405 { 406 u32 curr_cmd; 407 u32 cmd = hqvdp->hqvdp_cmd_paddr; 408 unsigned int i; 409 410 curr_cmd = readl(hqvdp->regs + HQVDP_MBX_CURRENT_CMD); 411 412 for (i = 0; i < NB_VDP_CMD; i++) { 413 if (cmd == curr_cmd) 414 return i * sizeof(struct sti_hqvdp_cmd); 415 416 cmd += sizeof(struct sti_hqvdp_cmd); 417 } 418 419 return -1; 420 } 421 422 /** 423 * sti_hqvdp_get_next_cmd 424 * @hqvdp: hqvdp structure 425 * 426 * Look for the next hqvdp_cmd that will be used by the FW. 427 * 428 * RETURNS: 429 * the offset of the next command that will be used. 430 * -1 in error cases 431 */ 432 static int sti_hqvdp_get_next_cmd(struct sti_hqvdp *hqvdp) 433 { 434 int next_cmd; 435 dma_addr_t cmd = hqvdp->hqvdp_cmd_paddr; 436 unsigned int i; 437 438 next_cmd = readl(hqvdp->regs + HQVDP_MBX_NEXT_CMD); 439 440 for (i = 0; i < NB_VDP_CMD; i++) { 441 if (cmd == next_cmd) 442 return i * sizeof(struct sti_hqvdp_cmd); 443 444 cmd += sizeof(struct sti_hqvdp_cmd); 445 } 446 447 return -1; 448 } 449 450 #define DBGFS_DUMP(reg) seq_printf(s, "\n %-25s 0x%08X", #reg, \ 451 readl(hqvdp->regs + reg)) 452 453 static const char *hqvdp_dbg_get_lut(u32 *coef) 454 { 455 if (!memcmp(coef, coef_lut_a_legacy, 16)) 456 return "LUT A"; 457 if (!memcmp(coef, coef_lut_b, 16)) 458 return "LUT B"; 459 if (!memcmp(coef, coef_lut_c_y_legacy, 16)) 460 return "LUT C Y"; 461 if (!memcmp(coef, coef_lut_c_c_legacy, 16)) 462 return "LUT C C"; 463 if (!memcmp(coef, coef_lut_d_y_legacy, 16)) 464 return "LUT D Y"; 465 if (!memcmp(coef, coef_lut_d_c_legacy, 16)) 466 return "LUT D C"; 467 if (!memcmp(coef, coef_lut_e_y_legacy, 16)) 468 return "LUT E Y"; 469 if (!memcmp(coef, coef_lut_e_c_legacy, 16)) 470 return "LUT E C"; 471 if (!memcmp(coef, coef_lut_f_y_legacy, 16)) 472 return "LUT F Y"; 473 if (!memcmp(coef, coef_lut_f_c_legacy, 16)) 474 return "LUT F C"; 475 return "<UNKNOWN>"; 476 } 477 478 static void hqvdp_dbg_dump_cmd(struct seq_file *s, struct sti_hqvdp_cmd *c) 479 { 480 int src_w, src_h, dst_w, dst_h; 481 482 seq_puts(s, "\n\tTOP:"); 483 seq_printf(s, "\n\t %-20s 0x%08X", "Config", c->top.config); 484 switch (c->top.config) { 485 case TOP_CONFIG_PROGRESSIVE: 486 seq_puts(s, "\tProgressive"); 487 break; 488 case TOP_CONFIG_INTER_TOP: 489 seq_puts(s, "\tInterlaced, top field"); 490 break; 491 case TOP_CONFIG_INTER_BTM: 492 seq_puts(s, "\tInterlaced, bottom field"); 493 break; 494 default: 495 seq_puts(s, "\t<UNKNOWN>"); 496 break; 497 } 498 499 seq_printf(s, "\n\t %-20s 0x%08X", "MemFormat", c->top.mem_format); 500 seq_printf(s, "\n\t %-20s 0x%08X", "CurrentY", c->top.current_luma); 501 seq_printf(s, "\n\t %-20s 0x%08X", "CurrentC", c->top.current_chroma); 502 seq_printf(s, "\n\t %-20s 0x%08X", "YSrcPitch", c->top.luma_src_pitch); 503 seq_printf(s, "\n\t %-20s 0x%08X", "CSrcPitch", 504 c->top.chroma_src_pitch); 505 seq_printf(s, "\n\t %-20s 0x%08X", "InputFrameSize", 506 c->top.input_frame_size); 507 seq_printf(s, "\t%dx%d", 508 c->top.input_frame_size & 0x0000FFFF, 509 c->top.input_frame_size >> 16); 510 seq_printf(s, "\n\t %-20s 0x%08X", "InputViewportSize", 511 c->top.input_viewport_size); 512 src_w = c->top.input_viewport_size & 0x0000FFFF; 513 src_h = c->top.input_viewport_size >> 16; 514 seq_printf(s, "\t%dx%d", src_w, src_h); 515 516 seq_puts(s, "\n\tHVSRC:"); 517 seq_printf(s, "\n\t %-20s 0x%08X", "OutputPictureSize", 518 c->hvsrc.output_picture_size); 519 dst_w = c->hvsrc.output_picture_size & 0x0000FFFF; 520 dst_h = c->hvsrc.output_picture_size >> 16; 521 seq_printf(s, "\t%dx%d", dst_w, dst_h); 522 seq_printf(s, "\n\t %-20s 0x%08X", "ParamCtrl", c->hvsrc.param_ctrl); 523 524 seq_printf(s, "\n\t %-20s %s", "yh_coef", 525 hqvdp_dbg_get_lut(c->hvsrc.yh_coef)); 526 seq_printf(s, "\n\t %-20s %s", "ch_coef", 527 hqvdp_dbg_get_lut(c->hvsrc.ch_coef)); 528 seq_printf(s, "\n\t %-20s %s", "yv_coef", 529 hqvdp_dbg_get_lut(c->hvsrc.yv_coef)); 530 seq_printf(s, "\n\t %-20s %s", "cv_coef", 531 hqvdp_dbg_get_lut(c->hvsrc.cv_coef)); 532 533 seq_printf(s, "\n\t %-20s", "ScaleH"); 534 if (dst_w > src_w) 535 seq_printf(s, " %d/1", dst_w / src_w); 536 else 537 seq_printf(s, " 1/%d", src_w / dst_w); 538 539 seq_printf(s, "\n\t %-20s", "tScaleV"); 540 if (dst_h > src_h) 541 seq_printf(s, " %d/1", dst_h / src_h); 542 else 543 seq_printf(s, " 1/%d", src_h / dst_h); 544 545 seq_puts(s, "\n\tCSDI:"); 546 seq_printf(s, "\n\t %-20s 0x%08X\t", "Config", c->csdi.config); 547 switch (c->csdi.config) { 548 case CSDI_CONFIG_PROG: 549 seq_puts(s, "Bypass"); 550 break; 551 case CSDI_CONFIG_INTER_DIR: 552 seq_puts(s, "Deinterlace, directional"); 553 break; 554 default: 555 seq_puts(s, "<UNKNOWN>"); 556 break; 557 } 558 559 seq_printf(s, "\n\t %-20s 0x%08X", "Config2", c->csdi.config2); 560 seq_printf(s, "\n\t %-20s 0x%08X", "DcdiConfig", c->csdi.dcdi_config); 561 } 562 563 static int hqvdp_dbg_show(struct seq_file *s, void *data) 564 { 565 struct drm_info_node *node = s->private; 566 struct sti_hqvdp *hqvdp = (struct sti_hqvdp *)node->info_ent->data; 567 int cmd, cmd_offset, infoxp70; 568 void *virt; 569 570 seq_printf(s, "%s: (vaddr = 0x%p)", 571 sti_plane_to_str(&hqvdp->plane), hqvdp->regs); 572 573 DBGFS_DUMP(HQVDP_MBX_IRQ_TO_XP70); 574 DBGFS_DUMP(HQVDP_MBX_INFO_HOST); 575 DBGFS_DUMP(HQVDP_MBX_IRQ_TO_HOST); 576 DBGFS_DUMP(HQVDP_MBX_INFO_XP70); 577 infoxp70 = readl(hqvdp->regs + HQVDP_MBX_INFO_XP70); 578 seq_puts(s, "\tFirmware state: "); 579 if (infoxp70 & INFO_XP70_FW_READY) 580 seq_puts(s, "idle and ready"); 581 else if (infoxp70 & INFO_XP70_FW_PROCESSING) 582 seq_puts(s, "processing a picture"); 583 else if (infoxp70 & INFO_XP70_FW_INITQUEUES) 584 seq_puts(s, "programming queues"); 585 else 586 seq_puts(s, "NOT READY"); 587 588 DBGFS_DUMP(HQVDP_MBX_SW_RESET_CTRL); 589 DBGFS_DUMP(HQVDP_MBX_STARTUP_CTRL1); 590 if (readl(hqvdp->regs + HQVDP_MBX_STARTUP_CTRL1) 591 & STARTUP_CTRL1_RST_DONE) 592 seq_puts(s, "\tReset is done"); 593 else 594 seq_puts(s, "\tReset is NOT done"); 595 DBGFS_DUMP(HQVDP_MBX_STARTUP_CTRL2); 596 if (readl(hqvdp->regs + HQVDP_MBX_STARTUP_CTRL2) 597 & STARTUP_CTRL2_FETCH_EN) 598 seq_puts(s, "\tFetch is enabled"); 599 else 600 seq_puts(s, "\tFetch is NOT enabled"); 601 DBGFS_DUMP(HQVDP_MBX_GP_STATUS); 602 DBGFS_DUMP(HQVDP_MBX_NEXT_CMD); 603 DBGFS_DUMP(HQVDP_MBX_CURRENT_CMD); 604 DBGFS_DUMP(HQVDP_MBX_SOFT_VSYNC); 605 if (!(readl(hqvdp->regs + HQVDP_MBX_SOFT_VSYNC) & 3)) 606 seq_puts(s, "\tHW Vsync"); 607 else 608 seq_puts(s, "\tSW Vsync ?!?!"); 609 610 /* Last command */ 611 cmd = readl(hqvdp->regs + HQVDP_MBX_CURRENT_CMD); 612 cmd_offset = sti_hqvdp_get_curr_cmd(hqvdp); 613 if (cmd_offset == -1) { 614 seq_puts(s, "\n\n Last command: unknown"); 615 } else { 616 virt = hqvdp->hqvdp_cmd + cmd_offset; 617 seq_printf(s, "\n\n Last command: address @ 0x%x (0x%p)", 618 cmd, virt); 619 hqvdp_dbg_dump_cmd(s, (struct sti_hqvdp_cmd *)virt); 620 } 621 622 /* Next command */ 623 cmd = readl(hqvdp->regs + HQVDP_MBX_NEXT_CMD); 624 cmd_offset = sti_hqvdp_get_next_cmd(hqvdp); 625 if (cmd_offset == -1) { 626 seq_puts(s, "\n\n Next command: unknown"); 627 } else { 628 virt = hqvdp->hqvdp_cmd + cmd_offset; 629 seq_printf(s, "\n\n Next command address: @ 0x%x (0x%p)", 630 cmd, virt); 631 hqvdp_dbg_dump_cmd(s, (struct sti_hqvdp_cmd *)virt); 632 } 633 634 seq_putc(s, '\n'); 635 return 0; 636 } 637 638 static struct drm_info_list hqvdp_debugfs_files[] = { 639 { "hqvdp", hqvdp_dbg_show, 0, NULL }, 640 }; 641 642 static void hqvdp_debugfs_init(struct sti_hqvdp *hqvdp, struct drm_minor *minor) 643 { 644 unsigned int i; 645 646 for (i = 0; i < ARRAY_SIZE(hqvdp_debugfs_files); i++) 647 hqvdp_debugfs_files[i].data = hqvdp; 648 649 drm_debugfs_create_files(hqvdp_debugfs_files, 650 ARRAY_SIZE(hqvdp_debugfs_files), 651 minor->debugfs_root, minor); 652 } 653 654 /** 655 * sti_hqvdp_update_hvsrc 656 * @orient: horizontal or vertical 657 * @scale: scaling/zoom factor 658 * @hvsrc: the structure containing the LUT coef 659 * 660 * Update the Y and C Lut coef, as well as the shift param 661 * 662 * RETURNS: 663 * None. 664 */ 665 static void sti_hqvdp_update_hvsrc(enum sti_hvsrc_orient orient, int scale, 666 struct sti_hqvdp_hvsrc *hvsrc) 667 { 668 const int *coef_c, *coef_y; 669 int shift_c, shift_y; 670 671 /* Get the appropriate coef tables */ 672 if (scale < SCALE_MAX_FOR_LEG_LUT_F) { 673 coef_y = coef_lut_f_y_legacy; 674 coef_c = coef_lut_f_c_legacy; 675 shift_y = SHIFT_LUT_F_Y_LEGACY; 676 shift_c = SHIFT_LUT_F_C_LEGACY; 677 } else if (scale < SCALE_MAX_FOR_LEG_LUT_E) { 678 coef_y = coef_lut_e_y_legacy; 679 coef_c = coef_lut_e_c_legacy; 680 shift_y = SHIFT_LUT_E_Y_LEGACY; 681 shift_c = SHIFT_LUT_E_C_LEGACY; 682 } else if (scale < SCALE_MAX_FOR_LEG_LUT_D) { 683 coef_y = coef_lut_d_y_legacy; 684 coef_c = coef_lut_d_c_legacy; 685 shift_y = SHIFT_LUT_D_Y_LEGACY; 686 shift_c = SHIFT_LUT_D_C_LEGACY; 687 } else if (scale < SCALE_MAX_FOR_LEG_LUT_C) { 688 coef_y = coef_lut_c_y_legacy; 689 coef_c = coef_lut_c_c_legacy; 690 shift_y = SHIFT_LUT_C_Y_LEGACY; 691 shift_c = SHIFT_LUT_C_C_LEGACY; 692 } else if (scale == SCALE_MAX_FOR_LEG_LUT_C) { 693 coef_y = coef_c = coef_lut_b; 694 shift_y = shift_c = SHIFT_LUT_B; 695 } else { 696 coef_y = coef_c = coef_lut_a_legacy; 697 shift_y = shift_c = SHIFT_LUT_A_LEGACY; 698 } 699 700 if (orient == HVSRC_HORI) { 701 hvsrc->hori_shift = (shift_c << 16) | shift_y; 702 memcpy(hvsrc->yh_coef, coef_y, sizeof(hvsrc->yh_coef)); 703 memcpy(hvsrc->ch_coef, coef_c, sizeof(hvsrc->ch_coef)); 704 } else { 705 hvsrc->vert_shift = (shift_c << 16) | shift_y; 706 memcpy(hvsrc->yv_coef, coef_y, sizeof(hvsrc->yv_coef)); 707 memcpy(hvsrc->cv_coef, coef_c, sizeof(hvsrc->cv_coef)); 708 } 709 } 710 711 /** 712 * sti_hqvdp_check_hw_scaling 713 * @hqvdp: hqvdp pointer 714 * @mode: display mode with timing constraints 715 * @src_w: source width 716 * @src_h: source height 717 * @dst_w: destination width 718 * @dst_h: destination height 719 * 720 * Check if the HW is able to perform the scaling request 721 * The firmware scaling limitation is "CEIL(1/Zy) <= FLOOR(LFW)" where: 722 * Zy = OutputHeight / InputHeight 723 * LFW = (Tx * IPClock) / (MaxNbCycles * Cp) 724 * Tx : Total video mode horizontal resolution 725 * IPClock : HQVDP IP clock (Mhz) 726 * MaxNbCycles: max(InputWidth, OutputWidth) 727 * Cp: Video mode pixel clock (Mhz) 728 * 729 * RETURNS: 730 * True if the HW can scale. 731 */ 732 static bool sti_hqvdp_check_hw_scaling(struct sti_hqvdp *hqvdp, 733 struct drm_display_mode *mode, 734 int src_w, int src_h, 735 int dst_w, int dst_h) 736 { 737 unsigned long lfw; 738 unsigned int inv_zy; 739 740 lfw = mode->htotal * (clk_get_rate(hqvdp->clk) / 1000000); 741 lfw /= max(src_w, dst_w) * mode->clock / 1000; 742 743 inv_zy = DIV_ROUND_UP(src_h, dst_h); 744 745 return (inv_zy <= lfw) ? true : false; 746 } 747 748 /** 749 * sti_hqvdp_disable 750 * @hqvdp: hqvdp pointer 751 * 752 * Disables the HQVDP plane 753 */ 754 static void sti_hqvdp_disable(struct sti_hqvdp *hqvdp) 755 { 756 int i; 757 758 DRM_DEBUG_DRIVER("%s\n", sti_plane_to_str(&hqvdp->plane)); 759 760 /* Unregister VTG Vsync callback */ 761 if (sti_vtg_unregister_client(hqvdp->vtg, &hqvdp->vtg_nb)) 762 DRM_DEBUG_DRIVER("Warning: cannot unregister VTG notifier\n"); 763 764 /* Set next cmd to NULL */ 765 writel(0, hqvdp->regs + HQVDP_MBX_NEXT_CMD); 766 767 for (i = 0; i < POLL_MAX_ATTEMPT; i++) { 768 if (readl(hqvdp->regs + HQVDP_MBX_INFO_XP70) 769 & INFO_XP70_FW_READY) 770 break; 771 msleep(POLL_DELAY_MS); 772 } 773 774 /* VTG can stop now */ 775 clk_disable_unprepare(hqvdp->clk_pix_main); 776 777 if (i == POLL_MAX_ATTEMPT) 778 DRM_ERROR("XP70 could not revert to idle\n"); 779 780 hqvdp->plane.status = STI_PLANE_DISABLED; 781 hqvdp->vtg_registered = false; 782 } 783 784 /** 785 * sti_hqvdp_vtg_cb 786 * @nb: notifier block 787 * @evt: event message 788 * @data: private data 789 * 790 * Handle VTG Vsync event, display pending bottom field 791 * 792 * RETURNS: 793 * 0 on success. 794 */ 795 static int sti_hqvdp_vtg_cb(struct notifier_block *nb, unsigned long evt, void *data) 796 { 797 struct sti_hqvdp *hqvdp = container_of(nb, struct sti_hqvdp, vtg_nb); 798 int btm_cmd_offset, top_cmd_offest; 799 struct sti_hqvdp_cmd *btm_cmd, *top_cmd; 800 801 if ((evt != VTG_TOP_FIELD_EVENT) && (evt != VTG_BOTTOM_FIELD_EVENT)) { 802 DRM_DEBUG_DRIVER("Unknown event\n"); 803 return 0; 804 } 805 806 if (hqvdp->plane.status == STI_PLANE_FLUSHING) { 807 /* disable need to be synchronize on vsync event */ 808 DRM_DEBUG_DRIVER("Vsync event received => disable %s\n", 809 sti_plane_to_str(&hqvdp->plane)); 810 811 sti_hqvdp_disable(hqvdp); 812 } 813 814 if (hqvdp->btm_field_pending) { 815 /* Create the btm field command from the current one */ 816 btm_cmd_offset = sti_hqvdp_get_free_cmd(hqvdp); 817 top_cmd_offest = sti_hqvdp_get_curr_cmd(hqvdp); 818 if ((btm_cmd_offset == -1) || (top_cmd_offest == -1)) { 819 DRM_DEBUG_DRIVER("Warning: no cmd, will skip field\n"); 820 return -EBUSY; 821 } 822 823 btm_cmd = hqvdp->hqvdp_cmd + btm_cmd_offset; 824 top_cmd = hqvdp->hqvdp_cmd + top_cmd_offest; 825 826 memcpy(btm_cmd, top_cmd, sizeof(*btm_cmd)); 827 828 btm_cmd->top.config = TOP_CONFIG_INTER_BTM; 829 btm_cmd->top.current_luma += 830 btm_cmd->top.luma_src_pitch / 2; 831 btm_cmd->top.current_chroma += 832 btm_cmd->top.chroma_src_pitch / 2; 833 834 /* Post the command to mailbox */ 835 writel(hqvdp->hqvdp_cmd_paddr + btm_cmd_offset, 836 hqvdp->regs + HQVDP_MBX_NEXT_CMD); 837 838 hqvdp->btm_field_pending = false; 839 840 dev_dbg(hqvdp->dev, "%s Posted command:0x%x\n", 841 __func__, hqvdp->hqvdp_cmd_paddr); 842 843 sti_plane_update_fps(&hqvdp->plane, false, true); 844 } 845 846 return 0; 847 } 848 849 static void sti_hqvdp_init(struct sti_hqvdp *hqvdp) 850 { 851 int size; 852 dma_addr_t dma_addr; 853 854 hqvdp->vtg_nb.notifier_call = sti_hqvdp_vtg_cb; 855 856 /* Allocate memory for the VDP commands */ 857 size = NB_VDP_CMD * sizeof(struct sti_hqvdp_cmd); 858 hqvdp->hqvdp_cmd = dma_alloc_wc(hqvdp->dev, size, 859 &dma_addr, 860 GFP_KERNEL | GFP_DMA); 861 if (!hqvdp->hqvdp_cmd) { 862 DRM_ERROR("Failed to allocate memory for VDP cmd\n"); 863 return; 864 } 865 866 hqvdp->hqvdp_cmd_paddr = (u32)dma_addr; 867 memset(hqvdp->hqvdp_cmd, 0, size); 868 } 869 870 static void sti_hqvdp_init_plugs(struct sti_hqvdp *hqvdp) 871 { 872 /* Configure Plugs (same for RD & WR) */ 873 writel(PLUG_PAGE_SIZE_256, hqvdp->regs + HQVDP_RD_PLUG_PAGE_SIZE); 874 writel(PLUG_MIN_OPC_8, hqvdp->regs + HQVDP_RD_PLUG_MIN_OPC); 875 writel(PLUG_MAX_OPC_64, hqvdp->regs + HQVDP_RD_PLUG_MAX_OPC); 876 writel(PLUG_MAX_CHK_2X, hqvdp->regs + HQVDP_RD_PLUG_MAX_CHK); 877 writel(PLUG_MAX_MSG_1X, hqvdp->regs + HQVDP_RD_PLUG_MAX_MSG); 878 writel(PLUG_MIN_SPACE_1, hqvdp->regs + HQVDP_RD_PLUG_MIN_SPACE); 879 writel(PLUG_CONTROL_ENABLE, hqvdp->regs + HQVDP_RD_PLUG_CONTROL); 880 881 writel(PLUG_PAGE_SIZE_256, hqvdp->regs + HQVDP_WR_PLUG_PAGE_SIZE); 882 writel(PLUG_MIN_OPC_8, hqvdp->regs + HQVDP_WR_PLUG_MIN_OPC); 883 writel(PLUG_MAX_OPC_64, hqvdp->regs + HQVDP_WR_PLUG_MAX_OPC); 884 writel(PLUG_MAX_CHK_2X, hqvdp->regs + HQVDP_WR_PLUG_MAX_CHK); 885 writel(PLUG_MAX_MSG_1X, hqvdp->regs + HQVDP_WR_PLUG_MAX_MSG); 886 writel(PLUG_MIN_SPACE_1, hqvdp->regs + HQVDP_WR_PLUG_MIN_SPACE); 887 writel(PLUG_CONTROL_ENABLE, hqvdp->regs + HQVDP_WR_PLUG_CONTROL); 888 } 889 890 /** 891 * sti_hqvdp_start_xp70 892 * @hqvdp: hqvdp pointer 893 * 894 * Run the xP70 initialization sequence 895 */ 896 static void sti_hqvdp_start_xp70(struct sti_hqvdp *hqvdp) 897 { 898 const struct firmware *firmware; 899 u32 *fw_rd_plug, *fw_wr_plug, *fw_pmem, *fw_dmem; 900 u8 *data; 901 int i; 902 struct fw_header { 903 int rd_size; 904 int wr_size; 905 int pmem_size; 906 int dmem_size; 907 } *header; 908 909 DRM_DEBUG_DRIVER("\n"); 910 911 if (hqvdp->xp70_initialized) { 912 DRM_DEBUG_DRIVER("HQVDP XP70 already initialized\n"); 913 return; 914 } 915 916 /* Request firmware */ 917 if (request_firmware(&firmware, HQVDP_FMW_NAME, hqvdp->dev)) { 918 DRM_ERROR("Can't get HQVDP firmware\n"); 919 return; 920 } 921 922 /* Check firmware parts */ 923 if (!firmware) { 924 DRM_ERROR("Firmware not available\n"); 925 return; 926 } 927 928 header = (struct fw_header *)firmware->data; 929 if (firmware->size < sizeof(*header)) { 930 DRM_ERROR("Invalid firmware size (%zu)\n", firmware->size); 931 goto out; 932 } 933 if ((sizeof(*header) + header->rd_size + header->wr_size + 934 header->pmem_size + header->dmem_size) != firmware->size) { 935 DRM_ERROR("Invalid fmw structure (%zu+%d+%d+%d+%d != %zu)\n", 936 sizeof(*header), header->rd_size, header->wr_size, 937 header->pmem_size, header->dmem_size, 938 firmware->size); 939 goto out; 940 } 941 942 data = (u8 *)firmware->data; 943 data += sizeof(*header); 944 fw_rd_plug = (void *)data; 945 data += header->rd_size; 946 fw_wr_plug = (void *)data; 947 data += header->wr_size; 948 fw_pmem = (void *)data; 949 data += header->pmem_size; 950 fw_dmem = (void *)data; 951 952 /* Enable clock */ 953 if (clk_prepare_enable(hqvdp->clk)) 954 DRM_ERROR("Failed to prepare/enable HQVDP clk\n"); 955 956 /* Reset */ 957 writel(SW_RESET_CTRL_FULL, hqvdp->regs + HQVDP_MBX_SW_RESET_CTRL); 958 959 for (i = 0; i < POLL_MAX_ATTEMPT; i++) { 960 if (readl(hqvdp->regs + HQVDP_MBX_STARTUP_CTRL1) 961 & STARTUP_CTRL1_RST_DONE) 962 break; 963 msleep(POLL_DELAY_MS); 964 } 965 if (i == POLL_MAX_ATTEMPT) { 966 DRM_ERROR("Could not reset\n"); 967 clk_disable_unprepare(hqvdp->clk); 968 goto out; 969 } 970 971 /* Init Read & Write plugs */ 972 for (i = 0; i < header->rd_size / 4; i++) 973 writel(fw_rd_plug[i], hqvdp->regs + HQVDP_RD_PLUG + i * 4); 974 for (i = 0; i < header->wr_size / 4; i++) 975 writel(fw_wr_plug[i], hqvdp->regs + HQVDP_WR_PLUG + i * 4); 976 977 sti_hqvdp_init_plugs(hqvdp); 978 979 /* Authorize Idle Mode */ 980 writel(STARTUP_CTRL1_AUTH_IDLE, hqvdp->regs + HQVDP_MBX_STARTUP_CTRL1); 981 982 /* Prevent VTG interruption during the boot */ 983 writel(SOFT_VSYNC_SW_CTRL_IRQ, hqvdp->regs + HQVDP_MBX_SOFT_VSYNC); 984 writel(0, hqvdp->regs + HQVDP_MBX_NEXT_CMD); 985 986 /* Download PMEM & DMEM */ 987 for (i = 0; i < header->pmem_size / 4; i++) 988 writel(fw_pmem[i], hqvdp->regs + HQVDP_PMEM + i * 4); 989 for (i = 0; i < header->dmem_size / 4; i++) 990 writel(fw_dmem[i], hqvdp->regs + HQVDP_DMEM + i * 4); 991 992 /* Enable fetch */ 993 writel(STARTUP_CTRL2_FETCH_EN, hqvdp->regs + HQVDP_MBX_STARTUP_CTRL2); 994 995 /* Wait end of boot */ 996 for (i = 0; i < POLL_MAX_ATTEMPT; i++) { 997 if (readl(hqvdp->regs + HQVDP_MBX_INFO_XP70) 998 & INFO_XP70_FW_READY) 999 break; 1000 msleep(POLL_DELAY_MS); 1001 } 1002 if (i == POLL_MAX_ATTEMPT) { 1003 DRM_ERROR("Could not boot\n"); 1004 clk_disable_unprepare(hqvdp->clk); 1005 goto out; 1006 } 1007 1008 /* Launch Vsync */ 1009 writel(SOFT_VSYNC_HW, hqvdp->regs + HQVDP_MBX_SOFT_VSYNC); 1010 1011 DRM_INFO("HQVDP XP70 initialized\n"); 1012 1013 hqvdp->xp70_initialized = true; 1014 1015 out: 1016 release_firmware(firmware); 1017 } 1018 1019 static int sti_hqvdp_atomic_check(struct drm_plane *drm_plane, 1020 struct drm_atomic_state *state) 1021 { 1022 struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state, 1023 drm_plane); 1024 struct sti_plane *plane = to_sti_plane(drm_plane); 1025 struct sti_hqvdp *hqvdp = to_sti_hqvdp(plane); 1026 struct drm_crtc *crtc = new_plane_state->crtc; 1027 struct drm_framebuffer *fb = new_plane_state->fb; 1028 struct drm_crtc_state *crtc_state; 1029 struct drm_display_mode *mode; 1030 int dst_x, dst_y, dst_w, dst_h; 1031 int src_x, src_y, src_w, src_h; 1032 1033 /* no need for further checks if the plane is being disabled */ 1034 if (!crtc || !fb) 1035 return 0; 1036 1037 crtc_state = drm_atomic_get_crtc_state(state, crtc); 1038 mode = &crtc_state->mode; 1039 dst_x = new_plane_state->crtc_x; 1040 dst_y = new_plane_state->crtc_y; 1041 dst_w = clamp_val(new_plane_state->crtc_w, 0, mode->hdisplay - dst_x); 1042 dst_h = clamp_val(new_plane_state->crtc_h, 0, mode->vdisplay - dst_y); 1043 /* src_x are in 16.16 format */ 1044 src_x = new_plane_state->src_x >> 16; 1045 src_y = new_plane_state->src_y >> 16; 1046 src_w = new_plane_state->src_w >> 16; 1047 src_h = new_plane_state->src_h >> 16; 1048 1049 if (mode->clock && !sti_hqvdp_check_hw_scaling(hqvdp, mode, 1050 src_w, src_h, 1051 dst_w, dst_h)) { 1052 DRM_ERROR("Scaling beyond HW capabilities\n"); 1053 return -EINVAL; 1054 } 1055 1056 if (!drm_fb_cma_get_gem_obj(fb, 0)) { 1057 DRM_ERROR("Can't get CMA GEM object for fb\n"); 1058 return -EINVAL; 1059 } 1060 1061 /* 1062 * Input / output size 1063 * Align to upper even value 1064 */ 1065 dst_w = ALIGN(dst_w, 2); 1066 dst_h = ALIGN(dst_h, 2); 1067 1068 if ((src_w > MAX_WIDTH) || (src_w < MIN_WIDTH) || 1069 (src_h > MAX_HEIGHT) || (src_h < MIN_HEIGHT) || 1070 (dst_w > MAX_WIDTH) || (dst_w < MIN_WIDTH) || 1071 (dst_h > MAX_HEIGHT) || (dst_h < MIN_HEIGHT)) { 1072 DRM_ERROR("Invalid in/out size %dx%d -> %dx%d\n", 1073 src_w, src_h, 1074 dst_w, dst_h); 1075 return -EINVAL; 1076 } 1077 1078 if (!hqvdp->xp70_initialized) 1079 /* Start HQVDP XP70 coprocessor */ 1080 sti_hqvdp_start_xp70(hqvdp); 1081 1082 if (!hqvdp->vtg_registered) { 1083 /* Prevent VTG shutdown */ 1084 if (clk_prepare_enable(hqvdp->clk_pix_main)) { 1085 DRM_ERROR("Failed to prepare/enable pix main clk\n"); 1086 return -EINVAL; 1087 } 1088 1089 /* Register VTG Vsync callback to handle bottom fields */ 1090 if (sti_vtg_register_client(hqvdp->vtg, 1091 &hqvdp->vtg_nb, 1092 crtc)) { 1093 DRM_ERROR("Cannot register VTG notifier\n"); 1094 clk_disable_unprepare(hqvdp->clk_pix_main); 1095 return -EINVAL; 1096 } 1097 hqvdp->vtg_registered = true; 1098 } 1099 1100 DRM_DEBUG_KMS("CRTC:%d (%s) drm plane:%d (%s)\n", 1101 crtc->base.id, sti_mixer_to_str(to_sti_mixer(crtc)), 1102 drm_plane->base.id, sti_plane_to_str(plane)); 1103 DRM_DEBUG_KMS("%s dst=(%dx%d)@(%d,%d) - src=(%dx%d)@(%d,%d)\n", 1104 sti_plane_to_str(plane), 1105 dst_w, dst_h, dst_x, dst_y, 1106 src_w, src_h, src_x, src_y); 1107 1108 return 0; 1109 } 1110 1111 static void sti_hqvdp_atomic_update(struct drm_plane *drm_plane, 1112 struct drm_atomic_state *state) 1113 { 1114 struct drm_plane_state *oldstate = drm_atomic_get_old_plane_state(state, 1115 drm_plane); 1116 struct drm_plane_state *newstate = drm_atomic_get_new_plane_state(state, 1117 drm_plane); 1118 struct sti_plane *plane = to_sti_plane(drm_plane); 1119 struct sti_hqvdp *hqvdp = to_sti_hqvdp(plane); 1120 struct drm_crtc *crtc = newstate->crtc; 1121 struct drm_framebuffer *fb = newstate->fb; 1122 struct drm_display_mode *mode; 1123 int dst_x, dst_y, dst_w, dst_h; 1124 int src_x, src_y, src_w, src_h; 1125 struct drm_gem_cma_object *cma_obj; 1126 struct sti_hqvdp_cmd *cmd; 1127 int scale_h, scale_v; 1128 int cmd_offset; 1129 1130 if (!crtc || !fb) 1131 return; 1132 1133 if ((oldstate->fb == newstate->fb) && 1134 (oldstate->crtc_x == newstate->crtc_x) && 1135 (oldstate->crtc_y == newstate->crtc_y) && 1136 (oldstate->crtc_w == newstate->crtc_w) && 1137 (oldstate->crtc_h == newstate->crtc_h) && 1138 (oldstate->src_x == newstate->src_x) && 1139 (oldstate->src_y == newstate->src_y) && 1140 (oldstate->src_w == newstate->src_w) && 1141 (oldstate->src_h == newstate->src_h)) { 1142 /* No change since last update, do not post cmd */ 1143 DRM_DEBUG_DRIVER("No change, not posting cmd\n"); 1144 plane->status = STI_PLANE_UPDATED; 1145 return; 1146 } 1147 1148 mode = &crtc->mode; 1149 dst_x = newstate->crtc_x; 1150 dst_y = newstate->crtc_y; 1151 dst_w = clamp_val(newstate->crtc_w, 0, mode->hdisplay - dst_x); 1152 dst_h = clamp_val(newstate->crtc_h, 0, mode->vdisplay - dst_y); 1153 /* src_x are in 16.16 format */ 1154 src_x = newstate->src_x >> 16; 1155 src_y = newstate->src_y >> 16; 1156 src_w = newstate->src_w >> 16; 1157 src_h = newstate->src_h >> 16; 1158 1159 cmd_offset = sti_hqvdp_get_free_cmd(hqvdp); 1160 if (cmd_offset == -1) { 1161 DRM_DEBUG_DRIVER("Warning: no cmd, will skip frame\n"); 1162 return; 1163 } 1164 cmd = hqvdp->hqvdp_cmd + cmd_offset; 1165 1166 /* Static parameters, defaulting to progressive mode */ 1167 cmd->top.config = TOP_CONFIG_PROGRESSIVE; 1168 cmd->top.mem_format = TOP_MEM_FORMAT_DFLT; 1169 cmd->hvsrc.param_ctrl = HVSRC_PARAM_CTRL_DFLT; 1170 cmd->csdi.config = CSDI_CONFIG_PROG; 1171 1172 /* VC1RE, FMD bypassed : keep everything set to 0 1173 * IQI/P2I bypassed */ 1174 cmd->iqi.config = IQI_CONFIG_DFLT; 1175 cmd->iqi.con_bri = IQI_CON_BRI_DFLT; 1176 cmd->iqi.sat_gain = IQI_SAT_GAIN_DFLT; 1177 cmd->iqi.pxf_conf = IQI_PXF_CONF_DFLT; 1178 1179 cma_obj = drm_fb_cma_get_gem_obj(fb, 0); 1180 1181 DRM_DEBUG_DRIVER("drm FB:%d format:%.4s phys@:0x%lx\n", fb->base.id, 1182 (char *)&fb->format->format, 1183 (unsigned long)cma_obj->paddr); 1184 1185 /* Buffer planes address */ 1186 cmd->top.current_luma = (u32)cma_obj->paddr + fb->offsets[0]; 1187 cmd->top.current_chroma = (u32)cma_obj->paddr + fb->offsets[1]; 1188 1189 /* Pitches */ 1190 cmd->top.luma_processed_pitch = fb->pitches[0]; 1191 cmd->top.luma_src_pitch = fb->pitches[0]; 1192 cmd->top.chroma_processed_pitch = fb->pitches[1]; 1193 cmd->top.chroma_src_pitch = fb->pitches[1]; 1194 1195 /* Input / output size 1196 * Align to upper even value */ 1197 dst_w = ALIGN(dst_w, 2); 1198 dst_h = ALIGN(dst_h, 2); 1199 1200 cmd->top.input_viewport_size = src_h << 16 | src_w; 1201 cmd->top.input_frame_size = src_h << 16 | src_w; 1202 cmd->hvsrc.output_picture_size = dst_h << 16 | dst_w; 1203 cmd->top.input_viewport_ori = src_y << 16 | src_x; 1204 1205 /* Handle interlaced */ 1206 if (fb->flags & DRM_MODE_FB_INTERLACED) { 1207 /* Top field to display */ 1208 cmd->top.config = TOP_CONFIG_INTER_TOP; 1209 1210 /* Update pitches and vert size */ 1211 cmd->top.input_frame_size = (src_h / 2) << 16 | src_w; 1212 cmd->top.luma_processed_pitch *= 2; 1213 cmd->top.luma_src_pitch *= 2; 1214 cmd->top.chroma_processed_pitch *= 2; 1215 cmd->top.chroma_src_pitch *= 2; 1216 1217 /* Enable directional deinterlacing processing */ 1218 cmd->csdi.config = CSDI_CONFIG_INTER_DIR; 1219 cmd->csdi.config2 = CSDI_CONFIG2_DFLT; 1220 cmd->csdi.dcdi_config = CSDI_DCDI_CONFIG_DFLT; 1221 } 1222 1223 /* Update hvsrc lut coef */ 1224 scale_h = SCALE_FACTOR * dst_w / src_w; 1225 sti_hqvdp_update_hvsrc(HVSRC_HORI, scale_h, &cmd->hvsrc); 1226 1227 scale_v = SCALE_FACTOR * dst_h / src_h; 1228 sti_hqvdp_update_hvsrc(HVSRC_VERT, scale_v, &cmd->hvsrc); 1229 1230 writel(hqvdp->hqvdp_cmd_paddr + cmd_offset, 1231 hqvdp->regs + HQVDP_MBX_NEXT_CMD); 1232 1233 /* Interlaced : get ready to display the bottom field at next Vsync */ 1234 if (fb->flags & DRM_MODE_FB_INTERLACED) 1235 hqvdp->btm_field_pending = true; 1236 1237 dev_dbg(hqvdp->dev, "%s Posted command:0x%x\n", 1238 __func__, hqvdp->hqvdp_cmd_paddr + cmd_offset); 1239 1240 sti_plane_update_fps(plane, true, true); 1241 1242 plane->status = STI_PLANE_UPDATED; 1243 } 1244 1245 static void sti_hqvdp_atomic_disable(struct drm_plane *drm_plane, 1246 struct drm_atomic_state *state) 1247 { 1248 struct drm_plane_state *oldstate = drm_atomic_get_old_plane_state(state, 1249 drm_plane); 1250 struct sti_plane *plane = to_sti_plane(drm_plane); 1251 1252 if (!oldstate->crtc) { 1253 DRM_DEBUG_DRIVER("drm plane:%d not enabled\n", 1254 drm_plane->base.id); 1255 return; 1256 } 1257 1258 DRM_DEBUG_DRIVER("CRTC:%d (%s) drm plane:%d (%s)\n", 1259 oldstate->crtc->base.id, 1260 sti_mixer_to_str(to_sti_mixer(oldstate->crtc)), 1261 drm_plane->base.id, sti_plane_to_str(plane)); 1262 1263 plane->status = STI_PLANE_DISABLING; 1264 } 1265 1266 static const struct drm_plane_helper_funcs sti_hqvdp_helpers_funcs = { 1267 .atomic_check = sti_hqvdp_atomic_check, 1268 .atomic_update = sti_hqvdp_atomic_update, 1269 .atomic_disable = sti_hqvdp_atomic_disable, 1270 }; 1271 1272 static int sti_hqvdp_late_register(struct drm_plane *drm_plane) 1273 { 1274 struct sti_plane *plane = to_sti_plane(drm_plane); 1275 struct sti_hqvdp *hqvdp = to_sti_hqvdp(plane); 1276 1277 hqvdp_debugfs_init(hqvdp, drm_plane->dev->primary); 1278 1279 return 0; 1280 } 1281 1282 static const struct drm_plane_funcs sti_hqvdp_plane_helpers_funcs = { 1283 .update_plane = drm_atomic_helper_update_plane, 1284 .disable_plane = drm_atomic_helper_disable_plane, 1285 .destroy = drm_plane_cleanup, 1286 .reset = sti_plane_reset, 1287 .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state, 1288 .atomic_destroy_state = drm_atomic_helper_plane_destroy_state, 1289 .late_register = sti_hqvdp_late_register, 1290 }; 1291 1292 static struct drm_plane *sti_hqvdp_create(struct drm_device *drm_dev, 1293 struct device *dev, int desc) 1294 { 1295 struct sti_hqvdp *hqvdp = dev_get_drvdata(dev); 1296 int res; 1297 1298 hqvdp->plane.desc = desc; 1299 hqvdp->plane.status = STI_PLANE_DISABLED; 1300 1301 sti_hqvdp_init(hqvdp); 1302 1303 res = drm_universal_plane_init(drm_dev, &hqvdp->plane.drm_plane, 1, 1304 &sti_hqvdp_plane_helpers_funcs, 1305 hqvdp_supported_formats, 1306 ARRAY_SIZE(hqvdp_supported_formats), 1307 NULL, DRM_PLANE_TYPE_OVERLAY, NULL); 1308 if (res) { 1309 DRM_ERROR("Failed to initialize universal plane\n"); 1310 return NULL; 1311 } 1312 1313 drm_plane_helper_add(&hqvdp->plane.drm_plane, &sti_hqvdp_helpers_funcs); 1314 1315 sti_plane_init_property(&hqvdp->plane, DRM_PLANE_TYPE_OVERLAY); 1316 1317 return &hqvdp->plane.drm_plane; 1318 } 1319 1320 static int sti_hqvdp_bind(struct device *dev, struct device *master, void *data) 1321 { 1322 struct sti_hqvdp *hqvdp = dev_get_drvdata(dev); 1323 struct drm_device *drm_dev = data; 1324 struct drm_plane *plane; 1325 1326 DRM_DEBUG_DRIVER("\n"); 1327 1328 hqvdp->drm_dev = drm_dev; 1329 1330 /* Create HQVDP plane once xp70 is initialized */ 1331 plane = sti_hqvdp_create(drm_dev, hqvdp->dev, STI_HQVDP_0); 1332 if (!plane) 1333 DRM_ERROR("Can't create HQVDP plane\n"); 1334 1335 return 0; 1336 } 1337 1338 static void sti_hqvdp_unbind(struct device *dev, 1339 struct device *master, void *data) 1340 { 1341 /* do nothing */ 1342 } 1343 1344 static const struct component_ops sti_hqvdp_ops = { 1345 .bind = sti_hqvdp_bind, 1346 .unbind = sti_hqvdp_unbind, 1347 }; 1348 1349 static int sti_hqvdp_probe(struct platform_device *pdev) 1350 { 1351 struct device *dev = &pdev->dev; 1352 struct device_node *vtg_np; 1353 struct sti_hqvdp *hqvdp; 1354 struct resource *res; 1355 1356 DRM_DEBUG_DRIVER("\n"); 1357 1358 hqvdp = devm_kzalloc(dev, sizeof(*hqvdp), GFP_KERNEL); 1359 if (!hqvdp) { 1360 DRM_ERROR("Failed to allocate HQVDP context\n"); 1361 return -ENOMEM; 1362 } 1363 1364 hqvdp->dev = dev; 1365 1366 /* Get Memory resources */ 1367 res = platform_get_resource(pdev, IORESOURCE_MEM, 0); 1368 if (!res) { 1369 DRM_ERROR("Get memory resource failed\n"); 1370 return -ENXIO; 1371 } 1372 hqvdp->regs = devm_ioremap(dev, res->start, resource_size(res)); 1373 if (!hqvdp->regs) { 1374 DRM_ERROR("Register mapping failed\n"); 1375 return -ENXIO; 1376 } 1377 1378 /* Get clock resources */ 1379 hqvdp->clk = devm_clk_get(dev, "hqvdp"); 1380 hqvdp->clk_pix_main = devm_clk_get(dev, "pix_main"); 1381 if (IS_ERR(hqvdp->clk) || IS_ERR(hqvdp->clk_pix_main)) { 1382 DRM_ERROR("Cannot get clocks\n"); 1383 return -ENXIO; 1384 } 1385 1386 /* Get reset resources */ 1387 hqvdp->reset = devm_reset_control_get(dev, "hqvdp"); 1388 if (!IS_ERR(hqvdp->reset)) 1389 reset_control_deassert(hqvdp->reset); 1390 1391 vtg_np = of_parse_phandle(pdev->dev.of_node, "st,vtg", 0); 1392 if (vtg_np) 1393 hqvdp->vtg = of_vtg_find(vtg_np); 1394 of_node_put(vtg_np); 1395 1396 platform_set_drvdata(pdev, hqvdp); 1397 1398 return component_add(&pdev->dev, &sti_hqvdp_ops); 1399 } 1400 1401 static int sti_hqvdp_remove(struct platform_device *pdev) 1402 { 1403 component_del(&pdev->dev, &sti_hqvdp_ops); 1404 return 0; 1405 } 1406 1407 static const struct of_device_id hqvdp_of_match[] = { 1408 { .compatible = "st,stih407-hqvdp", }, 1409 { /* end node */ } 1410 }; 1411 MODULE_DEVICE_TABLE(of, hqvdp_of_match); 1412 1413 struct platform_driver sti_hqvdp_driver = { 1414 .driver = { 1415 .name = "sti-hqvdp", 1416 .owner = THIS_MODULE, 1417 .of_match_table = hqvdp_of_match, 1418 }, 1419 .probe = sti_hqvdp_probe, 1420 .remove = sti_hqvdp_remove, 1421 }; 1422 1423 MODULE_AUTHOR("Benjamin Gaignard <benjamin.gaignard@st.com>"); 1424 MODULE_DESCRIPTION("STMicroelectronics SoC DRM driver"); 1425 MODULE_LICENSE("GPL"); 1426