1/* 2 * Copyright (C) STMicroelectronics SA 2014 3 * Authors: Fabien Dessenne <fabien.dessenne@st.com> for STMicroelectronics. 4 * License terms: GNU General Public License (GPL), version 2 5 */ 6 7#include <linux/clk.h> 8#include <linux/component.h> 9#include <linux/firmware.h> 10#include <linux/module.h> 11#include <linux/platform_device.h> 12#include <linux/reset.h> 13 14#include <drm/drmP.h> 15 16#include "sti_drm_plane.h" 17#include "sti_hqvdp.h" 18#include "sti_hqvdp_lut.h" 19#include "sti_layer.h" 20#include "sti_vtg.h" 21 22/* Firmware name */ 23#define HQVDP_FMW_NAME "hqvdp-stih407.bin" 24 25/* Regs address */ 26#define HQVDP_DMEM 0x00000000 /* 0x00000000 */ 27#define HQVDP_PMEM 0x00040000 /* 0x00040000 */ 28#define HQVDP_RD_PLUG 0x000E0000 /* 0x000E0000 */ 29#define HQVDP_RD_PLUG_CONTROL (HQVDP_RD_PLUG + 0x1000) /* 0x000E1000 */ 30#define HQVDP_RD_PLUG_PAGE_SIZE (HQVDP_RD_PLUG + 0x1004) /* 0x000E1004 */ 31#define HQVDP_RD_PLUG_MIN_OPC (HQVDP_RD_PLUG + 0x1008) /* 0x000E1008 */ 32#define HQVDP_RD_PLUG_MAX_OPC (HQVDP_RD_PLUG + 0x100C) /* 0x000E100C */ 33#define HQVDP_RD_PLUG_MAX_CHK (HQVDP_RD_PLUG + 0x1010) /* 0x000E1010 */ 34#define HQVDP_RD_PLUG_MAX_MSG (HQVDP_RD_PLUG + 0x1014) /* 0x000E1014 */ 35#define HQVDP_RD_PLUG_MIN_SPACE (HQVDP_RD_PLUG + 0x1018) /* 0x000E1018 */ 36#define HQVDP_WR_PLUG 0x000E2000 /* 0x000E2000 */ 37#define HQVDP_WR_PLUG_CONTROL (HQVDP_WR_PLUG + 0x1000) /* 0x000E3000 */ 38#define HQVDP_WR_PLUG_PAGE_SIZE (HQVDP_WR_PLUG + 0x1004) /* 0x000E3004 */ 39#define HQVDP_WR_PLUG_MIN_OPC (HQVDP_WR_PLUG + 0x1008) /* 0x000E3008 */ 40#define HQVDP_WR_PLUG_MAX_OPC (HQVDP_WR_PLUG + 0x100C) /* 0x000E300C */ 41#define HQVDP_WR_PLUG_MAX_CHK (HQVDP_WR_PLUG + 0x1010) /* 0x000E3010 */ 42#define HQVDP_WR_PLUG_MAX_MSG (HQVDP_WR_PLUG + 0x1014) /* 0x000E3014 */ 43#define HQVDP_WR_PLUG_MIN_SPACE (HQVDP_WR_PLUG + 0x1018) /* 0x000E3018 */ 44#define HQVDP_MBX 0x000E4000 /* 0x000E4000 */ 45#define HQVDP_MBX_IRQ_TO_XP70 (HQVDP_MBX + 0x0000) /* 0x000E4000 */ 46#define HQVDP_MBX_INFO_HOST (HQVDP_MBX + 0x0004) /* 0x000E4004 */ 47#define HQVDP_MBX_IRQ_TO_HOST (HQVDP_MBX + 0x0008) /* 0x000E4008 */ 48#define HQVDP_MBX_INFO_XP70 (HQVDP_MBX + 0x000C) /* 0x000E400C */ 49#define HQVDP_MBX_SW_RESET_CTRL (HQVDP_MBX + 0x0010) /* 0x000E4010 */ 50#define HQVDP_MBX_STARTUP_CTRL1 (HQVDP_MBX + 0x0014) /* 0x000E4014 */ 51#define HQVDP_MBX_STARTUP_CTRL2 (HQVDP_MBX + 0x0018) /* 0x000E4018 */ 52#define HQVDP_MBX_GP_STATUS (HQVDP_MBX + 0x001C) /* 0x000E401C */ 53#define HQVDP_MBX_NEXT_CMD (HQVDP_MBX + 0x0020) /* 0x000E4020 */ 54#define HQVDP_MBX_CURRENT_CMD (HQVDP_MBX + 0x0024) /* 0x000E4024 */ 55#define HQVDP_MBX_SOFT_VSYNC (HQVDP_MBX + 0x0028) /* 0x000E4028 */ 56 57/* Plugs config */ 58#define PLUG_CONTROL_ENABLE 0x00000001 59#define PLUG_PAGE_SIZE_256 0x00000002 60#define PLUG_MIN_OPC_8 0x00000003 61#define PLUG_MAX_OPC_64 0x00000006 62#define PLUG_MAX_CHK_2X 0x00000001 63#define PLUG_MAX_MSG_1X 0x00000000 64#define PLUG_MIN_SPACE_1 0x00000000 65 66/* SW reset CTRL */ 67#define SW_RESET_CTRL_FULL BIT(0) 68#define SW_RESET_CTRL_CORE BIT(1) 69 70/* Startup ctrl 1 */ 71#define STARTUP_CTRL1_RST_DONE BIT(0) 72#define STARTUP_CTRL1_AUTH_IDLE BIT(2) 73 74/* Startup ctrl 2 */ 75#define STARTUP_CTRL2_FETCH_EN BIT(1) 76 77/* Info xP70 */ 78#define INFO_XP70_FW_READY BIT(15) 79#define INFO_XP70_FW_PROCESSING BIT(14) 80#define INFO_XP70_FW_INITQUEUES BIT(13) 81 82/* SOFT_VSYNC */ 83#define SOFT_VSYNC_HW 0x00000000 84#define SOFT_VSYNC_SW_CMD 0x00000001 85#define SOFT_VSYNC_SW_CTRL_IRQ 0x00000003 86 87/* Reset & boot poll config */ 88#define POLL_MAX_ATTEMPT 50 89#define POLL_DELAY_MS 20 90 91#define SCALE_FACTOR 8192 92#define SCALE_MAX_FOR_LEG_LUT_F 4096 93#define SCALE_MAX_FOR_LEG_LUT_E 4915 94#define SCALE_MAX_FOR_LEG_LUT_D 6654 95#define SCALE_MAX_FOR_LEG_LUT_C 8192 96 97enum sti_hvsrc_orient { 98 HVSRC_HORI, 99 HVSRC_VERT 100}; 101 102/* Command structures */ 103struct sti_hqvdp_top { 104 u32 config; 105 u32 mem_format; 106 u32 current_luma; 107 u32 current_enh_luma; 108 u32 current_right_luma; 109 u32 current_enh_right_luma; 110 u32 current_chroma; 111 u32 current_enh_chroma; 112 u32 current_right_chroma; 113 u32 current_enh_right_chroma; 114 u32 output_luma; 115 u32 output_chroma; 116 u32 luma_src_pitch; 117 u32 luma_enh_src_pitch; 118 u32 luma_right_src_pitch; 119 u32 luma_enh_right_src_pitch; 120 u32 chroma_src_pitch; 121 u32 chroma_enh_src_pitch; 122 u32 chroma_right_src_pitch; 123 u32 chroma_enh_right_src_pitch; 124 u32 luma_processed_pitch; 125 u32 chroma_processed_pitch; 126 u32 input_frame_size; 127 u32 input_viewport_ori; 128 u32 input_viewport_ori_right; 129 u32 input_viewport_size; 130 u32 left_view_border_width; 131 u32 right_view_border_width; 132 u32 left_view_3d_offset_width; 133 u32 right_view_3d_offset_width; 134 u32 side_stripe_color; 135 u32 crc_reset_ctrl; 136}; 137 138/* Configs for interlaced : no IT, no pass thru, 3 fields */ 139#define TOP_CONFIG_INTER_BTM 0x00000000 140#define TOP_CONFIG_INTER_TOP 0x00000002 141 142/* Config for progressive : no IT, no pass thru, 3 fields */ 143#define TOP_CONFIG_PROGRESSIVE 0x00000001 144 145/* Default MemFormat: in=420_raster_dual out=444_raster;opaque Mem2Tv mode */ 146#define TOP_MEM_FORMAT_DFLT 0x00018060 147 148/* Min/Max size */ 149#define MAX_WIDTH 0x1FFF 150#define MAX_HEIGHT 0x0FFF 151#define MIN_WIDTH 0x0030 152#define MIN_HEIGHT 0x0010 153 154struct sti_hqvdp_vc1re { 155 u32 ctrl_prv_csdi; 156 u32 ctrl_cur_csdi; 157 u32 ctrl_nxt_csdi; 158 u32 ctrl_cur_fmd; 159 u32 ctrl_nxt_fmd; 160}; 161 162struct sti_hqvdp_fmd { 163 u32 config; 164 u32 viewport_ori; 165 u32 viewport_size; 166 u32 next_next_luma; 167 u32 next_next_right_luma; 168 u32 next_next_next_luma; 169 u32 next_next_next_right_luma; 170 u32 threshold_scd; 171 u32 threshold_rfd; 172 u32 threshold_move; 173 u32 threshold_cfd; 174}; 175 176struct sti_hqvdp_csdi { 177 u32 config; 178 u32 config2; 179 u32 dcdi_config; 180 u32 prev_luma; 181 u32 prev_enh_luma; 182 u32 prev_right_luma; 183 u32 prev_enh_right_luma; 184 u32 next_luma; 185 u32 next_enh_luma; 186 u32 next_right_luma; 187 u32 next_enh_right_luma; 188 u32 prev_chroma; 189 u32 prev_enh_chroma; 190 u32 prev_right_chroma; 191 u32 prev_enh_right_chroma; 192 u32 next_chroma; 193 u32 next_enh_chroma; 194 u32 next_right_chroma; 195 u32 next_enh_right_chroma; 196 u32 prev_motion; 197 u32 prev_right_motion; 198 u32 cur_motion; 199 u32 cur_right_motion; 200 u32 next_motion; 201 u32 next_right_motion; 202}; 203 204/* Config for progressive: by pass */ 205#define CSDI_CONFIG_PROG 0x00000000 206/* Config for directional deinterlacing without motion */ 207#define CSDI_CONFIG_INTER_DIR 0x00000016 208/* Additional configs for fader, blender, motion,... deinterlace algorithms */ 209#define CSDI_CONFIG2_DFLT 0x000001B3 210#define CSDI_DCDI_CONFIG_DFLT 0x00203803 211 212struct sti_hqvdp_hvsrc { 213 u32 hor_panoramic_ctrl; 214 u32 output_picture_size; 215 u32 init_horizontal; 216 u32 init_vertical; 217 u32 param_ctrl; 218 u32 yh_coef[NB_COEF]; 219 u32 ch_coef[NB_COEF]; 220 u32 yv_coef[NB_COEF]; 221 u32 cv_coef[NB_COEF]; 222 u32 hori_shift; 223 u32 vert_shift; 224}; 225 226/* Default ParamCtrl: all controls enabled */ 227#define HVSRC_PARAM_CTRL_DFLT 0xFFFFFFFF 228 229struct sti_hqvdp_iqi { 230 u32 config; 231 u32 demo_wind_size; 232 u32 pk_config; 233 u32 coeff0_coeff1; 234 u32 coeff2_coeff3; 235 u32 coeff4; 236 u32 pk_lut; 237 u32 pk_gain; 238 u32 pk_coring_level; 239 u32 cti_config; 240 u32 le_config; 241 u32 le_lut[64]; 242 u32 con_bri; 243 u32 sat_gain; 244 u32 pxf_conf; 245 u32 default_color; 246}; 247 248/* Default Config : IQI bypassed */ 249#define IQI_CONFIG_DFLT 0x00000001 250/* Default Contrast & Brightness gain = 256 */ 251#define IQI_CON_BRI_DFLT 0x00000100 252/* Default Saturation gain = 256 */ 253#define IQI_SAT_GAIN_DFLT 0x00000100 254/* Default PxfConf : P2I bypassed */ 255#define IQI_PXF_CONF_DFLT 0x00000001 256 257struct sti_hqvdp_top_status { 258 u32 processing_time; 259 u32 input_y_crc; 260 u32 input_uv_crc; 261}; 262 263struct sti_hqvdp_fmd_status { 264 u32 fmd_repeat_move_status; 265 u32 fmd_scene_count_status; 266 u32 cfd_sum; 267 u32 field_sum; 268 u32 next_y_fmd_crc; 269 u32 next_next_y_fmd_crc; 270 u32 next_next_next_y_fmd_crc; 271}; 272 273struct sti_hqvdp_csdi_status { 274 u32 prev_y_csdi_crc; 275 u32 cur_y_csdi_crc; 276 u32 next_y_csdi_crc; 277 u32 prev_uv_csdi_crc; 278 u32 cur_uv_csdi_crc; 279 u32 next_uv_csdi_crc; 280 u32 y_csdi_crc; 281 u32 uv_csdi_crc; 282 u32 uv_cup_crc; 283 u32 mot_csdi_crc; 284 u32 mot_cur_csdi_crc; 285 u32 mot_prev_csdi_crc; 286}; 287 288struct sti_hqvdp_hvsrc_status { 289 u32 y_hvsrc_crc; 290 u32 u_hvsrc_crc; 291 u32 v_hvsrc_crc; 292}; 293 294struct sti_hqvdp_iqi_status { 295 u32 pxf_it_status; 296 u32 y_iqi_crc; 297 u32 u_iqi_crc; 298 u32 v_iqi_crc; 299}; 300 301/* Main commands. We use 2 commands one being processed by the firmware, one 302 * ready to be fetched upon next Vsync*/ 303#define NB_VDP_CMD 2 304 305struct sti_hqvdp_cmd { 306 struct sti_hqvdp_top top; 307 struct sti_hqvdp_vc1re vc1re; 308 struct sti_hqvdp_fmd fmd; 309 struct sti_hqvdp_csdi csdi; 310 struct sti_hqvdp_hvsrc hvsrc; 311 struct sti_hqvdp_iqi iqi; 312 struct sti_hqvdp_top_status top_status; 313 struct sti_hqvdp_fmd_status fmd_status; 314 struct sti_hqvdp_csdi_status csdi_status; 315 struct sti_hqvdp_hvsrc_status hvsrc_status; 316 struct sti_hqvdp_iqi_status iqi_status; 317}; 318 319/* 320 * STI HQVDP structure 321 * 322 * @dev: driver device 323 * @drm_dev: the drm device 324 * @regs: registers 325 * @layer: layer structure for hqvdp it self 326 * @vid_plane: VID plug used as link with compositor IP 327 * @clk: IP clock 328 * @clk_pix_main: pix main clock 329 * @reset: reset control 330 * @vtg_nb: notifier to handle VTG Vsync 331 * @btm_field_pending: is there any bottom field (interlaced frame) to display 332 * @curr_field_count: number of field updates 333 * @last_field_count: number of field updates since last fps measure 334 * @hqvdp_cmd: buffer of commands 335 * @hqvdp_cmd_paddr: physical address of hqvdp_cmd 336 * @vtg: vtg for main data path 337 */ 338struct sti_hqvdp { 339 struct device *dev; 340 struct drm_device *drm_dev; 341 void __iomem *regs; 342 struct sti_layer layer; 343 struct drm_plane *vid_plane; 344 struct clk *clk; 345 struct clk *clk_pix_main; 346 struct reset_control *reset; 347 struct notifier_block vtg_nb; 348 bool btm_field_pending; 349 unsigned int curr_field_count; 350 unsigned int last_field_count; 351 void *hqvdp_cmd; 352 dma_addr_t hqvdp_cmd_paddr; 353 struct sti_vtg *vtg; 354}; 355 356#define to_sti_hqvdp(x) container_of(x, struct sti_hqvdp, layer) 357 358static const uint32_t hqvdp_supported_formats[] = { 359 DRM_FORMAT_NV12, 360}; 361 362static const uint32_t *sti_hqvdp_get_formats(struct sti_layer *layer) 363{ 364 return hqvdp_supported_formats; 365} 366 367static unsigned int sti_hqvdp_get_nb_formats(struct sti_layer *layer) 368{ 369 return ARRAY_SIZE(hqvdp_supported_formats); 370} 371 372/** 373 * sti_hqvdp_get_free_cmd 374 * @hqvdp: hqvdp structure 375 * 376 * Look for a hqvdp_cmd that is not being used (or about to be used) by the FW. 377 * 378 * RETURNS: 379 * the offset of the command to be used. 380 * -1 in error cases 381 */ 382static int sti_hqvdp_get_free_cmd(struct sti_hqvdp *hqvdp) 383{ 384 int curr_cmd, next_cmd; 385 dma_addr_t cmd = hqvdp->hqvdp_cmd_paddr; 386 int i; 387 388 curr_cmd = readl(hqvdp->regs + HQVDP_MBX_CURRENT_CMD); 389 next_cmd = readl(hqvdp->regs + HQVDP_MBX_NEXT_CMD); 390 391 for (i = 0; i < NB_VDP_CMD; i++) { 392 if ((cmd != curr_cmd) && (cmd != next_cmd)) 393 return i * sizeof(struct sti_hqvdp_cmd); 394 cmd += sizeof(struct sti_hqvdp_cmd); 395 } 396 397 return -1; 398} 399 400/** 401 * sti_hqvdp_get_curr_cmd 402 * @hqvdp: hqvdp structure 403 * 404 * Look for the hqvdp_cmd that is being used by the FW. 405 * 406 * RETURNS: 407 * the offset of the command to be used. 408 * -1 in error cases 409 */ 410static int sti_hqvdp_get_curr_cmd(struct sti_hqvdp *hqvdp) 411{ 412 int curr_cmd; 413 dma_addr_t cmd = hqvdp->hqvdp_cmd_paddr; 414 unsigned int i; 415 416 curr_cmd = readl(hqvdp->regs + HQVDP_MBX_CURRENT_CMD); 417 418 for (i = 0; i < NB_VDP_CMD; i++) { 419 if (cmd == curr_cmd) 420 return i * sizeof(struct sti_hqvdp_cmd); 421 422 cmd += sizeof(struct sti_hqvdp_cmd); 423 } 424 425 return -1; 426} 427 428/** 429 * sti_hqvdp_update_hvsrc 430 * @orient: horizontal or vertical 431 * @scale: scaling/zoom factor 432 * @hvsrc: the structure containing the LUT coef 433 * 434 * Update the Y and C Lut coef, as well as the shift param 435 * 436 * RETURNS: 437 * None. 438 */ 439static void sti_hqvdp_update_hvsrc(enum sti_hvsrc_orient orient, int scale, 440 struct sti_hqvdp_hvsrc *hvsrc) 441{ 442 const int *coef_c, *coef_y; 443 int shift_c, shift_y; 444 445 /* Get the appropriate coef tables */ 446 if (scale < SCALE_MAX_FOR_LEG_LUT_F) { 447 coef_y = coef_lut_f_y_legacy; 448 coef_c = coef_lut_f_c_legacy; 449 shift_y = SHIFT_LUT_F_Y_LEGACY; 450 shift_c = SHIFT_LUT_F_C_LEGACY; 451 } else if (scale < SCALE_MAX_FOR_LEG_LUT_E) { 452 coef_y = coef_lut_e_y_legacy; 453 coef_c = coef_lut_e_c_legacy; 454 shift_y = SHIFT_LUT_E_Y_LEGACY; 455 shift_c = SHIFT_LUT_E_C_LEGACY; 456 } else if (scale < SCALE_MAX_FOR_LEG_LUT_D) { 457 coef_y = coef_lut_d_y_legacy; 458 coef_c = coef_lut_d_c_legacy; 459 shift_y = SHIFT_LUT_D_Y_LEGACY; 460 shift_c = SHIFT_LUT_D_C_LEGACY; 461 } else if (scale < SCALE_MAX_FOR_LEG_LUT_C) { 462 coef_y = coef_lut_c_y_legacy; 463 coef_c = coef_lut_c_c_legacy; 464 shift_y = SHIFT_LUT_C_Y_LEGACY; 465 shift_c = SHIFT_LUT_C_C_LEGACY; 466 } else if (scale == SCALE_MAX_FOR_LEG_LUT_C) { 467 coef_y = coef_c = coef_lut_b; 468 shift_y = shift_c = SHIFT_LUT_B; 469 } else { 470 coef_y = coef_c = coef_lut_a_legacy; 471 shift_y = shift_c = SHIFT_LUT_A_LEGACY; 472 } 473 474 if (orient == HVSRC_HORI) { 475 hvsrc->hori_shift = (shift_c << 16) | shift_y; 476 memcpy(hvsrc->yh_coef, coef_y, sizeof(hvsrc->yh_coef)); 477 memcpy(hvsrc->ch_coef, coef_c, sizeof(hvsrc->ch_coef)); 478 } else { 479 hvsrc->vert_shift = (shift_c << 16) | shift_y; 480 memcpy(hvsrc->yv_coef, coef_y, sizeof(hvsrc->yv_coef)); 481 memcpy(hvsrc->cv_coef, coef_c, sizeof(hvsrc->cv_coef)); 482 } 483} 484 485/** 486 * sti_hqvdp_check_hw_scaling 487 * @layer: hqvdp layer 488 * 489 * Check if the HW is able to perform the scaling request 490 * The firmware scaling limitation is "CEIL(1/Zy) <= FLOOR(LFW)" where: 491 * Zy = OutputHeight / InputHeight 492 * LFW = (Tx * IPClock) / (MaxNbCycles * Cp) 493 * Tx : Total video mode horizontal resolution 494 * IPClock : HQVDP IP clock (Mhz) 495 * MaxNbCycles: max(InputWidth, OutputWidth) 496 * Cp: Video mode pixel clock (Mhz) 497 * 498 * RETURNS: 499 * True if the HW can scale. 500 */ 501static bool sti_hqvdp_check_hw_scaling(struct sti_layer *layer) 502{ 503 struct sti_hqvdp *hqvdp = to_sti_hqvdp(layer); 504 unsigned long lfw; 505 unsigned int inv_zy; 506 507 lfw = layer->mode->htotal * (clk_get_rate(hqvdp->clk) / 1000000); 508 lfw /= max(layer->src_w, layer->dst_w) * layer->mode->clock / 1000; 509 510 inv_zy = DIV_ROUND_UP(layer->src_h, layer->dst_h); 511 512 return (inv_zy <= lfw) ? true : false; 513} 514 515/** 516 * sti_hqvdp_prepare_layer 517 * @layer: hqvdp layer 518 * @first_prepare: true if it is the first time this function is called 519 * 520 * Prepares a command for the firmware 521 * 522 * RETURNS: 523 * 0 on success. 524 */ 525static int sti_hqvdp_prepare_layer(struct sti_layer *layer, bool first_prepare) 526{ 527 struct sti_hqvdp *hqvdp = to_sti_hqvdp(layer); 528 struct sti_hqvdp_cmd *cmd; 529 int scale_h, scale_v; 530 int cmd_offset; 531 532 dev_dbg(hqvdp->dev, "%s %s\n", __func__, sti_layer_to_str(layer)); 533 534 /* prepare and commit VID plane */ 535 hqvdp->vid_plane->funcs->update_plane(hqvdp->vid_plane, 536 layer->crtc, layer->fb, 537 layer->dst_x, layer->dst_y, 538 layer->dst_w, layer->dst_h, 539 layer->src_x, layer->src_y, 540 layer->src_w, layer->src_h); 541 542 cmd_offset = sti_hqvdp_get_free_cmd(hqvdp); 543 if (cmd_offset == -1) { 544 DRM_ERROR("No available hqvdp_cmd now\n"); 545 return -EBUSY; 546 } 547 cmd = hqvdp->hqvdp_cmd + cmd_offset; 548 549 if (!sti_hqvdp_check_hw_scaling(layer)) { 550 DRM_ERROR("Scaling beyond HW capabilities\n"); 551 return -EINVAL; 552 } 553 554 /* Static parameters, defaulting to progressive mode */ 555 cmd->top.config = TOP_CONFIG_PROGRESSIVE; 556 cmd->top.mem_format = TOP_MEM_FORMAT_DFLT; 557 cmd->hvsrc.param_ctrl = HVSRC_PARAM_CTRL_DFLT; 558 cmd->csdi.config = CSDI_CONFIG_PROG; 559 560 /* VC1RE, FMD bypassed : keep everything set to 0 561 * IQI/P2I bypassed */ 562 cmd->iqi.config = IQI_CONFIG_DFLT; 563 cmd->iqi.con_bri = IQI_CON_BRI_DFLT; 564 cmd->iqi.sat_gain = IQI_SAT_GAIN_DFLT; 565 cmd->iqi.pxf_conf = IQI_PXF_CONF_DFLT; 566 567 /* Buffer planes address */ 568 cmd->top.current_luma = (u32) layer->paddr + layer->offsets[0]; 569 cmd->top.current_chroma = (u32) layer->paddr + layer->offsets[1]; 570 571 /* Pitches */ 572 cmd->top.luma_processed_pitch = cmd->top.luma_src_pitch = 573 layer->pitches[0]; 574 cmd->top.chroma_processed_pitch = cmd->top.chroma_src_pitch = 575 layer->pitches[1]; 576 577 /* Input / output size 578 * Align to upper even value */ 579 layer->dst_w = ALIGN(layer->dst_w, 2); 580 layer->dst_h = ALIGN(layer->dst_h, 2); 581 582 if ((layer->src_w > MAX_WIDTH) || (layer->src_w < MIN_WIDTH) || 583 (layer->src_h > MAX_HEIGHT) || (layer->src_h < MIN_HEIGHT) || 584 (layer->dst_w > MAX_WIDTH) || (layer->dst_w < MIN_WIDTH) || 585 (layer->dst_h > MAX_HEIGHT) || (layer->dst_h < MIN_HEIGHT)) { 586 DRM_ERROR("Invalid in/out size %dx%d -> %dx%d\n", 587 layer->src_w, layer->src_h, 588 layer->dst_w, layer->dst_h); 589 return -EINVAL; 590 } 591 cmd->top.input_viewport_size = cmd->top.input_frame_size = 592 layer->src_h << 16 | layer->src_w; 593 cmd->hvsrc.output_picture_size = layer->dst_h << 16 | layer->dst_w; 594 cmd->top.input_viewport_ori = layer->src_y << 16 | layer->src_x; 595 596 /* Handle interlaced */ 597 if (layer->fb->flags & DRM_MODE_FB_INTERLACED) { 598 /* Top field to display */ 599 cmd->top.config = TOP_CONFIG_INTER_TOP; 600 601 /* Update pitches and vert size */ 602 cmd->top.input_frame_size = (layer->src_h / 2) << 16 | 603 layer->src_w; 604 cmd->top.luma_processed_pitch *= 2; 605 cmd->top.luma_src_pitch *= 2; 606 cmd->top.chroma_processed_pitch *= 2; 607 cmd->top.chroma_src_pitch *= 2; 608 609 /* Enable directional deinterlacing processing */ 610 cmd->csdi.config = CSDI_CONFIG_INTER_DIR; 611 cmd->csdi.config2 = CSDI_CONFIG2_DFLT; 612 cmd->csdi.dcdi_config = CSDI_DCDI_CONFIG_DFLT; 613 } 614 615 /* Update hvsrc lut coef */ 616 scale_h = SCALE_FACTOR * layer->dst_w / layer->src_w; 617 sti_hqvdp_update_hvsrc(HVSRC_HORI, scale_h, &cmd->hvsrc); 618 619 scale_v = SCALE_FACTOR * layer->dst_h / layer->src_h; 620 sti_hqvdp_update_hvsrc(HVSRC_VERT, scale_v, &cmd->hvsrc); 621 622 if (first_prepare) { 623 /* Prevent VTG shutdown */ 624 if (clk_prepare_enable(hqvdp->clk_pix_main)) { 625 DRM_ERROR("Failed to prepare/enable pix main clk\n"); 626 return -ENXIO; 627 } 628 629 /* Register VTG Vsync callback to handle bottom fields */ 630 if ((layer->fb->flags & DRM_MODE_FB_INTERLACED) && 631 sti_vtg_register_client(hqvdp->vtg, 632 &hqvdp->vtg_nb, layer->mixer_id)) { 633 DRM_ERROR("Cannot register VTG notifier\n"); 634 return -ENXIO; 635 } 636 } 637 638 return 0; 639} 640 641static int sti_hqvdp_commit_layer(struct sti_layer *layer) 642{ 643 struct sti_hqvdp *hqvdp = to_sti_hqvdp(layer); 644 int cmd_offset; 645 646 dev_dbg(hqvdp->dev, "%s %s\n", __func__, sti_layer_to_str(layer)); 647 648 cmd_offset = sti_hqvdp_get_free_cmd(hqvdp); 649 if (cmd_offset == -1) { 650 DRM_ERROR("No available hqvdp_cmd now\n"); 651 return -EBUSY; 652 } 653 654 writel(hqvdp->hqvdp_cmd_paddr + cmd_offset, 655 hqvdp->regs + HQVDP_MBX_NEXT_CMD); 656 657 hqvdp->curr_field_count++; 658 659 /* Interlaced : get ready to display the bottom field at next Vsync */ 660 if (layer->fb->flags & DRM_MODE_FB_INTERLACED) 661 hqvdp->btm_field_pending = true; 662 663 dev_dbg(hqvdp->dev, "%s Posted command:0x%x\n", 664 __func__, hqvdp->hqvdp_cmd_paddr + cmd_offset); 665 666 return 0; 667} 668 669static int sti_hqvdp_disable_layer(struct sti_layer *layer) 670{ 671 struct sti_hqvdp *hqvdp = to_sti_hqvdp(layer); 672 int i; 673 674 DRM_DEBUG_DRIVER("%s\n", sti_layer_to_str(layer)); 675 676 /* Unregister VTG Vsync callback */ 677 if ((layer->fb->flags & DRM_MODE_FB_INTERLACED) && 678 sti_vtg_unregister_client(hqvdp->vtg, &hqvdp->vtg_nb)) 679 DRM_DEBUG_DRIVER("Warning: cannot unregister VTG notifier\n"); 680 681 /* Set next cmd to NULL */ 682 writel(0, hqvdp->regs + HQVDP_MBX_NEXT_CMD); 683 684 for (i = 0; i < POLL_MAX_ATTEMPT; i++) { 685 if (readl(hqvdp->regs + HQVDP_MBX_INFO_XP70) 686 & INFO_XP70_FW_READY) 687 break; 688 msleep(POLL_DELAY_MS); 689 } 690 691 /* VTG can stop now */ 692 clk_disable_unprepare(hqvdp->clk_pix_main); 693 694 if (i == POLL_MAX_ATTEMPT) { 695 DRM_ERROR("XP70 could not revert to idle\n"); 696 return -ENXIO; 697 } 698 699 /* disable VID plane */ 700 hqvdp->vid_plane->funcs->disable_plane(hqvdp->vid_plane); 701 702 return 0; 703} 704 705/** 706 * sti_vdp_vtg_cb 707 * @nb: notifier block 708 * @evt: event message 709 * @data: private data 710 * 711 * Handle VTG Vsync event, display pending bottom field 712 * 713 * RETURNS: 714 * 0 on success. 715 */ 716int sti_hqvdp_vtg_cb(struct notifier_block *nb, unsigned long evt, void *data) 717{ 718 struct sti_hqvdp *hqvdp = container_of(nb, struct sti_hqvdp, vtg_nb); 719 int btm_cmd_offset, top_cmd_offest; 720 struct sti_hqvdp_cmd *btm_cmd, *top_cmd; 721 722 if ((evt != VTG_TOP_FIELD_EVENT) && (evt != VTG_BOTTOM_FIELD_EVENT)) { 723 DRM_DEBUG_DRIVER("Unknown event\n"); 724 return 0; 725 } 726 727 if (hqvdp->btm_field_pending) { 728 /* Create the btm field command from the current one */ 729 btm_cmd_offset = sti_hqvdp_get_free_cmd(hqvdp); 730 top_cmd_offest = sti_hqvdp_get_curr_cmd(hqvdp); 731 if ((btm_cmd_offset == -1) || (top_cmd_offest == -1)) { 732 DRM_ERROR("Cannot get cmds, skip btm field\n"); 733 return -EBUSY; 734 } 735 736 btm_cmd = hqvdp->hqvdp_cmd + btm_cmd_offset; 737 top_cmd = hqvdp->hqvdp_cmd + top_cmd_offest; 738 739 memcpy(btm_cmd, top_cmd, sizeof(*btm_cmd)); 740 741 btm_cmd->top.config = TOP_CONFIG_INTER_BTM; 742 btm_cmd->top.current_luma += 743 btm_cmd->top.luma_src_pitch / 2; 744 btm_cmd->top.current_chroma += 745 btm_cmd->top.chroma_src_pitch / 2; 746 747 /* Post the command to mailbox */ 748 writel(hqvdp->hqvdp_cmd_paddr + btm_cmd_offset, 749 hqvdp->regs + HQVDP_MBX_NEXT_CMD); 750 751 hqvdp->curr_field_count++; 752 hqvdp->btm_field_pending = false; 753 754 dev_dbg(hqvdp->dev, "%s Posted command:0x%x\n", 755 __func__, hqvdp->hqvdp_cmd_paddr); 756 } 757 758 return 0; 759} 760 761static struct drm_plane *sti_hqvdp_find_vid(struct drm_device *dev, int id) 762{ 763 struct drm_plane *plane; 764 765 list_for_each_entry(plane, &dev->mode_config.plane_list, head) { 766 struct sti_layer *layer = to_sti_layer(plane); 767 768 if (layer->desc == id) 769 return plane; 770 } 771 772 return NULL; 773} 774 775static void sti_hqvd_init(struct sti_layer *layer) 776{ 777 struct sti_hqvdp *hqvdp = to_sti_hqvdp(layer); 778 int size; 779 780 /* find the plane macthing with vid 0 */ 781 hqvdp->vid_plane = sti_hqvdp_find_vid(hqvdp->drm_dev, STI_VID_0); 782 if (!hqvdp->vid_plane) { 783 DRM_ERROR("Cannot find Main video layer\n"); 784 return; 785 } 786 787 hqvdp->vtg_nb.notifier_call = sti_hqvdp_vtg_cb; 788 789 /* Allocate memory for the VDP commands */ 790 size = NB_VDP_CMD * sizeof(struct sti_hqvdp_cmd); 791 hqvdp->hqvdp_cmd = dma_alloc_writecombine(hqvdp->dev, size, 792 &hqvdp->hqvdp_cmd_paddr, 793 GFP_KERNEL | GFP_DMA); 794 if (!hqvdp->hqvdp_cmd) { 795 DRM_ERROR("Failed to allocate memory for VDP cmd\n"); 796 return; 797 } 798 799 memset(hqvdp->hqvdp_cmd, 0, size); 800} 801 802static const struct sti_layer_funcs hqvdp_ops = { 803 .get_formats = sti_hqvdp_get_formats, 804 .get_nb_formats = sti_hqvdp_get_nb_formats, 805 .init = sti_hqvd_init, 806 .prepare = sti_hqvdp_prepare_layer, 807 .commit = sti_hqvdp_commit_layer, 808 .disable = sti_hqvdp_disable_layer, 809}; 810 811struct sti_layer *sti_hqvdp_create(struct device *dev) 812{ 813 struct sti_hqvdp *hqvdp = dev_get_drvdata(dev); 814 815 hqvdp->layer.ops = &hqvdp_ops; 816 817 return &hqvdp->layer; 818} 819EXPORT_SYMBOL(sti_hqvdp_create); 820 821static void sti_hqvdp_init_plugs(struct sti_hqvdp *hqvdp) 822{ 823 /* Configure Plugs (same for RD & WR) */ 824 writel(PLUG_PAGE_SIZE_256, hqvdp->regs + HQVDP_RD_PLUG_PAGE_SIZE); 825 writel(PLUG_MIN_OPC_8, hqvdp->regs + HQVDP_RD_PLUG_MIN_OPC); 826 writel(PLUG_MAX_OPC_64, hqvdp->regs + HQVDP_RD_PLUG_MAX_OPC); 827 writel(PLUG_MAX_CHK_2X, hqvdp->regs + HQVDP_RD_PLUG_MAX_CHK); 828 writel(PLUG_MAX_MSG_1X, hqvdp->regs + HQVDP_RD_PLUG_MAX_MSG); 829 writel(PLUG_MIN_SPACE_1, hqvdp->regs + HQVDP_RD_PLUG_MIN_SPACE); 830 writel(PLUG_CONTROL_ENABLE, hqvdp->regs + HQVDP_RD_PLUG_CONTROL); 831 832 writel(PLUG_PAGE_SIZE_256, hqvdp->regs + HQVDP_WR_PLUG_PAGE_SIZE); 833 writel(PLUG_MIN_OPC_8, hqvdp->regs + HQVDP_WR_PLUG_MIN_OPC); 834 writel(PLUG_MAX_OPC_64, hqvdp->regs + HQVDP_WR_PLUG_MAX_OPC); 835 writel(PLUG_MAX_CHK_2X, hqvdp->regs + HQVDP_WR_PLUG_MAX_CHK); 836 writel(PLUG_MAX_MSG_1X, hqvdp->regs + HQVDP_WR_PLUG_MAX_MSG); 837 writel(PLUG_MIN_SPACE_1, hqvdp->regs + HQVDP_WR_PLUG_MIN_SPACE); 838 writel(PLUG_CONTROL_ENABLE, hqvdp->regs + HQVDP_WR_PLUG_CONTROL); 839} 840 841/** 842 * sti_hqvdp_start_xp70 843 * @firmware: firmware found 844 * @ctxt: hqvdp structure 845 * 846 * Run the xP70 initialization sequence 847 */ 848static void sti_hqvdp_start_xp70(const struct firmware *firmware, void *ctxt) 849{ 850 struct sti_hqvdp *hqvdp = ctxt; 851 u32 *fw_rd_plug, *fw_wr_plug, *fw_pmem, *fw_dmem; 852 u8 *data; 853 int i; 854 struct fw_header { 855 int rd_size; 856 int wr_size; 857 int pmem_size; 858 int dmem_size; 859 } *header; 860 861 DRM_DEBUG_DRIVER("\n"); 862 /* Check firmware parts */ 863 if (!firmware) { 864 DRM_ERROR("Firmware not available\n"); 865 return; 866 } 867 868 header = (struct fw_header *) firmware->data; 869 if (firmware->size < sizeof(*header)) { 870 DRM_ERROR("Invalid firmware size (%d)\n", firmware->size); 871 goto out; 872 } 873 if ((sizeof(*header) + header->rd_size + header->wr_size + 874 header->pmem_size + header->dmem_size) != firmware->size) { 875 DRM_ERROR("Invalid fmw structure (%d+%d+%d+%d+%d != %d)\n", 876 sizeof(*header), header->rd_size, header->wr_size, 877 header->pmem_size, header->dmem_size, 878 firmware->size); 879 goto out; 880 } 881 882 data = (u8 *) firmware->data; 883 data += sizeof(*header); 884 fw_rd_plug = (void *) data; 885 data += header->rd_size; 886 fw_wr_plug = (void *) data; 887 data += header->wr_size; 888 fw_pmem = (void *) data; 889 data += header->pmem_size; 890 fw_dmem = (void *) data; 891 892 /* Enable clock */ 893 if (clk_prepare_enable(hqvdp->clk)) 894 DRM_ERROR("Failed to prepare/enable HQVDP clk\n"); 895 896 /* Reset */ 897 writel(SW_RESET_CTRL_FULL, hqvdp->regs + HQVDP_MBX_SW_RESET_CTRL); 898 899 for (i = 0; i < POLL_MAX_ATTEMPT; i++) { 900 if (readl(hqvdp->regs + HQVDP_MBX_STARTUP_CTRL1) 901 & STARTUP_CTRL1_RST_DONE) 902 break; 903 msleep(POLL_DELAY_MS); 904 } 905 if (i == POLL_MAX_ATTEMPT) { 906 DRM_ERROR("Could not reset\n"); 907 goto out; 908 } 909 910 /* Init Read & Write plugs */ 911 for (i = 0; i < header->rd_size / 4; i++) 912 writel(fw_rd_plug[i], hqvdp->regs + HQVDP_RD_PLUG + i * 4); 913 for (i = 0; i < header->wr_size / 4; i++) 914 writel(fw_wr_plug[i], hqvdp->regs + HQVDP_WR_PLUG + i * 4); 915 916 sti_hqvdp_init_plugs(hqvdp); 917 918 /* Authorize Idle Mode */ 919 writel(STARTUP_CTRL1_AUTH_IDLE, hqvdp->regs + HQVDP_MBX_STARTUP_CTRL1); 920 921 /* Prevent VTG interruption during the boot */ 922 writel(SOFT_VSYNC_SW_CTRL_IRQ, hqvdp->regs + HQVDP_MBX_SOFT_VSYNC); 923 writel(0, hqvdp->regs + HQVDP_MBX_NEXT_CMD); 924 925 /* Download PMEM & DMEM */ 926 for (i = 0; i < header->pmem_size / 4; i++) 927 writel(fw_pmem[i], hqvdp->regs + HQVDP_PMEM + i * 4); 928 for (i = 0; i < header->dmem_size / 4; i++) 929 writel(fw_dmem[i], hqvdp->regs + HQVDP_DMEM + i * 4); 930 931 /* Enable fetch */ 932 writel(STARTUP_CTRL2_FETCH_EN, hqvdp->regs + HQVDP_MBX_STARTUP_CTRL2); 933 934 /* Wait end of boot */ 935 for (i = 0; i < POLL_MAX_ATTEMPT; i++) { 936 if (readl(hqvdp->regs + HQVDP_MBX_INFO_XP70) 937 & INFO_XP70_FW_READY) 938 break; 939 msleep(POLL_DELAY_MS); 940 } 941 if (i == POLL_MAX_ATTEMPT) { 942 DRM_ERROR("Could not boot\n"); 943 goto out; 944 } 945 946 /* Launch Vsync */ 947 writel(SOFT_VSYNC_HW, hqvdp->regs + HQVDP_MBX_SOFT_VSYNC); 948 949 DRM_INFO("HQVDP XP70 started\n"); 950out: 951 release_firmware(firmware); 952} 953 954int sti_hqvdp_bind(struct device *dev, struct device *master, void *data) 955{ 956 struct sti_hqvdp *hqvdp = dev_get_drvdata(dev); 957 struct drm_device *drm_dev = data; 958 struct sti_layer *layer; 959 int err; 960 961 DRM_DEBUG_DRIVER("\n"); 962 963 hqvdp->drm_dev = drm_dev; 964 965 /* Request for firmware */ 966 err = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG, 967 HQVDP_FMW_NAME, hqvdp->dev, 968 GFP_KERNEL, hqvdp, sti_hqvdp_start_xp70); 969 if (err) { 970 DRM_ERROR("Can't get HQVDP firmware\n"); 971 return err; 972 } 973 974 layer = sti_layer_create(hqvdp->dev, STI_HQVDP_0, hqvdp->regs); 975 if (!layer) { 976 DRM_ERROR("Can't create HQVDP plane\n"); 977 return -ENOMEM; 978 } 979 980 sti_drm_plane_init(drm_dev, layer, 1, DRM_PLANE_TYPE_OVERLAY); 981 982 return 0; 983} 984 985static void sti_hqvdp_unbind(struct device *dev, 986 struct device *master, void *data) 987{ 988 /* do nothing */ 989} 990 991static const struct component_ops sti_hqvdp_ops = { 992 .bind = sti_hqvdp_bind, 993 .unbind = sti_hqvdp_unbind, 994}; 995 996static int sti_hqvdp_probe(struct platform_device *pdev) 997{ 998 struct device *dev = &pdev->dev; 999 struct device_node *vtg_np; 1000 struct sti_hqvdp *hqvdp; 1001 struct resource *res; 1002 1003 DRM_DEBUG_DRIVER("\n"); 1004 1005 hqvdp = devm_kzalloc(dev, sizeof(*hqvdp), GFP_KERNEL); 1006 if (!hqvdp) { 1007 DRM_ERROR("Failed to allocate HQVDP context\n"); 1008 return -ENOMEM; 1009 } 1010 1011 hqvdp->dev = dev; 1012 1013 /* Get Memory resources */ 1014 res = platform_get_resource(pdev, IORESOURCE_MEM, 0); 1015 if (res == NULL) { 1016 DRM_ERROR("Get memory resource failed\n"); 1017 return -ENXIO; 1018 } 1019 hqvdp->regs = devm_ioremap(dev, res->start, resource_size(res)); 1020 if (hqvdp->regs == NULL) { 1021 DRM_ERROR("Register mapping failed\n"); 1022 return -ENXIO; 1023 } 1024 1025 /* Get clock resources */ 1026 hqvdp->clk = devm_clk_get(dev, "hqvdp"); 1027 hqvdp->clk_pix_main = devm_clk_get(dev, "pix_main"); 1028 if (IS_ERR(hqvdp->clk) || IS_ERR(hqvdp->clk_pix_main)) { 1029 DRM_ERROR("Cannot get clocks\n"); 1030 return -ENXIO; 1031 } 1032 1033 /* Get reset resources */ 1034 hqvdp->reset = devm_reset_control_get(dev, "hqvdp"); 1035 if (!IS_ERR(hqvdp->reset)) 1036 reset_control_deassert(hqvdp->reset); 1037 1038 vtg_np = of_parse_phandle(pdev->dev.of_node, "st,vtg", 0); 1039 if (vtg_np) 1040 hqvdp->vtg = of_vtg_find(vtg_np); 1041 1042 platform_set_drvdata(pdev, hqvdp); 1043 1044 return component_add(&pdev->dev, &sti_hqvdp_ops); 1045} 1046 1047static int sti_hqvdp_remove(struct platform_device *pdev) 1048{ 1049 component_del(&pdev->dev, &sti_hqvdp_ops); 1050 return 0; 1051} 1052 1053static struct of_device_id hqvdp_of_match[] = { 1054 { .compatible = "st,stih407-hqvdp", }, 1055 { /* end node */ } 1056}; 1057MODULE_DEVICE_TABLE(of, hqvdp_of_match); 1058 1059struct platform_driver sti_hqvdp_driver = { 1060 .driver = { 1061 .name = "sti-hqvdp", 1062 .owner = THIS_MODULE, 1063 .of_match_table = hqvdp_of_match, 1064 }, 1065 .probe = sti_hqvdp_probe, 1066 .remove = sti_hqvdp_remove, 1067}; 1068 1069module_platform_driver(sti_hqvdp_driver); 1070 1071MODULE_AUTHOR("Benjamin Gaignard <benjamin.gaignard@st.com>"); 1072MODULE_DESCRIPTION("STMicroelectronics SoC DRM driver"); 1073MODULE_LICENSE("GPL"); 1074