drivers/media/platform/mtk-vcodec/vdec/vdec_vp8

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This source file includes following definitions.
get_hw_reg_base
write_hw_segmentation_data
read_hw_segmentation_data
enable_hw_rw_function
store_dec_table
load_dec_table
get_pic_info
vp8_dec_finish
move_fb_list_use_to_free
init_list
add_fb_to_free_list
alloc_working_buf
free_working_buf
vdec_vp8_init
vdec_vp8_decode
get_disp_fb
get_free_fb
get_crop_info
vdec_vp8_get_param
vdec_vp8_deinit
   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Copyright (c) 2016 MediaTek Inc.
   4  * Author: Jungchang Tsao <jungchang.tsao@mediatek.com>
   5  *         PC Chen <pc.chen@mediatek.com>
   6  */
   7 
   8 #include <linux/slab.h>
   9 #include "../vdec_drv_if.h"
  10 #include "../mtk_vcodec_util.h"
  11 #include "../mtk_vcodec_dec.h"
  12 #include "../mtk_vcodec_intr.h"
  13 #include "../vdec_vpu_if.h"
  14 #include "../vdec_drv_base.h"
  15 
  16 /* Decoding picture buffer size (3 reference frames plus current frame) */
  17 #define VP8_DPB_SIZE                    4
  18 
  19 /* HW working buffer size (bytes) */
  20 #define VP8_WORKING_BUF_SZ              (45 * 4096)
  21 
  22 /* HW control register address */
  23 #define VP8_SEGID_DRAM_ADDR             0x3c
  24 #define VP8_HW_VLD_ADDR                 0x93C
  25 #define VP8_HW_VLD_VALUE                0x940
  26 #define VP8_BSASET                      0x100
  27 #define VP8_BSDSET                      0x104
  28 #define VP8_RW_CKEN_SET                 0x0
  29 #define VP8_RW_DCM_CON                  0x18
  30 #define VP8_WO_VLD_SRST                 0x108
  31 #define VP8_RW_MISC_SYS_SEL             0x84
  32 #define VP8_RW_MISC_SPEC_CON            0xC8
  33 #define VP8_WO_VLD_SRST                 0x108
  34 #define VP8_RW_VP8_CTRL                 0xA4
  35 #define VP8_RW_MISC_DCM_CON             0xEC
  36 #define VP8_RW_MISC_SRST                0xF4
  37 #define VP8_RW_MISC_FUNC_CON            0xCC
  38 
  39 #define VP8_MAX_FRM_BUF_NUM             5
  40 #define VP8_MAX_FRM_BUF_NODE_NUM        (VP8_MAX_FRM_BUF_NUM * 2)
  41 
  42 /* required buffer size (bytes) to store decode information */
  43 #define VP8_HW_SEGMENT_DATA_SZ          272
  44 #define VP8_HW_SEGMENT_UINT             4
  45 
  46 #define VP8_DEC_TABLE_PROC_LOOP         96
  47 #define VP8_DEC_TABLE_UNIT              3
  48 #define VP8_DEC_TABLE_SZ                300
  49 #define VP8_DEC_TABLE_OFFSET            2
  50 #define VP8_DEC_TABLE_RW_UNIT           4
  51 
  52 /**
  53  * struct vdec_vp8_dec_info - decode misc information
  54  * @working_buf_dma   : working buffer dma address
  55  * @prev_y_dma        : previous decoded frame buffer Y plane address
  56  * @cur_y_fb_dma      : current plane Y frame buffer dma address
  57  * @cur_c_fb_dma      : current plane C frame buffer dma address
  58  * @bs_dma            : bitstream dma address
  59  * @bs_sz             : bitstream size
  60  * @resolution_changed: resolution change flag 1 - changed,  0 - not change
  61  * @show_frame        : display this frame or not
  62  * @wait_key_frame    : wait key frame coming
  63  */
  64 struct vdec_vp8_dec_info {
  65         uint64_t working_buf_dma;
  66         uint64_t prev_y_dma;
  67         uint64_t cur_y_fb_dma;
  68         uint64_t cur_c_fb_dma;
  69         uint64_t bs_dma;
  70         uint32_t bs_sz;
  71         uint32_t resolution_changed;
  72         uint32_t show_frame;
  73         uint32_t wait_key_frame;
  74 };
  75 
  76 /**
  77  * struct vdec_vp8_vsi - VPU shared information
  78  * @dec                 : decoding information
  79  * @pic                 : picture information
  80  * @dec_table           : decoder coefficient table
  81  * @segment_buf         : segmentation buffer
  82  * @load_data           : flag to indicate reload decode data
  83  */
  84 struct vdec_vp8_vsi {
  85         struct vdec_vp8_dec_info dec;
  86         struct vdec_pic_info pic;
  87         uint32_t dec_table[VP8_DEC_TABLE_SZ];
  88         uint32_t segment_buf[VP8_HW_SEGMENT_DATA_SZ][VP8_HW_SEGMENT_UINT];
  89         uint32_t load_data;
  90 };
  91 
  92 /**
  93  * struct vdec_vp8_hw_reg_base - HW register base
  94  * @sys         : base address for sys
  95  * @misc        : base address for misc
  96  * @ld          : base address for ld
  97  * @top         : base address for top
  98  * @cm          : base address for cm
  99  * @hwd         : base address for hwd
 100  * @hwb         : base address for hwb
 101  */
 102 struct vdec_vp8_hw_reg_base {
 103         void __iomem *sys;
 104         void __iomem *misc;
 105         void __iomem *ld;
 106         void __iomem *top;
 107         void __iomem *cm;
 108         void __iomem *hwd;
 109         void __iomem *hwb;
 110 };
 111 
 112 /**
 113  * struct vdec_vp8_vpu_inst - VPU instance for VP8 decode
 114  * @wq_hd       : Wait queue to wait VPU message ack
 115  * @signaled    : 1 - Host has received ack message from VPU, 0 - not receive
 116  * @failure     : VPU execution result status 0 - success, others - fail
 117  * @inst_addr   : VPU decoder instance address
 118  */
 119 struct vdec_vp8_vpu_inst {
 120         wait_queue_head_t wq_hd;
 121         int signaled;
 122         int failure;
 123         uint32_t inst_addr;
 124 };
 125 
 126 /* frame buffer (fb) list
 127  * [available_fb_node_list]  - decode fb are initialized to 0 and populated in
 128  * [fb_use_list]  - fb is set after decode and is moved to this list
 129  * [fb_free_list] - fb is not needed for reference will be moved from
 130  *                   [fb_use_list] to [fb_free_list] and
 131  *                   once user remove fb from [fb_free_list],
 132  *                   it is circulated back to [available_fb_node_list]
 133  * [fb_disp_list] - fb is set after decode and is moved to this list
 134  *                   once user remove fb from [fb_disp_list] it is
 135  *                   circulated back to [available_fb_node_list]
 136  */
 137 
 138 /**
 139  * struct vdec_vp8_inst - VP8 decoder instance
 140  * @cur_fb                 : current frame buffer
 141  * @dec_fb                 : decode frame buffer node
 142  * @available_fb_node_list : list to store available frame buffer node
 143  * @fb_use_list            : list to store frame buffer in use
 144  * @fb_free_list           : list to store free frame buffer
 145  * @fb_disp_list           : list to store display ready frame buffer
 146  * @working_buf            : HW decoder working buffer
 147  * @reg_base               : HW register base address
 148  * @frm_cnt                : decode frame count
 149  * @ctx                    : V4L2 context
 150  * @vpu                    : VPU instance for decoder
 151  * @vsi                    : VPU share information
 152  */
 153 struct vdec_vp8_inst {
 154         struct vdec_fb *cur_fb;
 155         struct vdec_fb_node dec_fb[VP8_MAX_FRM_BUF_NODE_NUM];
 156         struct list_head available_fb_node_list;
 157         struct list_head fb_use_list;
 158         struct list_head fb_free_list;
 159         struct list_head fb_disp_list;
 160         struct mtk_vcodec_mem working_buf;
 161         struct vdec_vp8_hw_reg_base reg_base;
 162         unsigned int frm_cnt;
 163         struct mtk_vcodec_ctx *ctx;
 164         struct vdec_vpu_inst vpu;
 165         struct vdec_vp8_vsi *vsi;
 166 };
 167 
 168 static void get_hw_reg_base(struct vdec_vp8_inst *inst)
 169 {
 170         inst->reg_base.top = mtk_vcodec_get_reg_addr(inst->ctx, VDEC_TOP);
 171         inst->reg_base.cm = mtk_vcodec_get_reg_addr(inst->ctx, VDEC_CM);
 172         inst->reg_base.hwd = mtk_vcodec_get_reg_addr(inst->ctx, VDEC_HWD);
 173         inst->reg_base.sys = mtk_vcodec_get_reg_addr(inst->ctx, VDEC_SYS);
 174         inst->reg_base.misc = mtk_vcodec_get_reg_addr(inst->ctx, VDEC_MISC);
 175         inst->reg_base.ld = mtk_vcodec_get_reg_addr(inst->ctx, VDEC_LD);
 176         inst->reg_base.hwb = mtk_vcodec_get_reg_addr(inst->ctx, VDEC_HWB);
 177 }
 178 
 179 static void write_hw_segmentation_data(struct vdec_vp8_inst *inst)
 180 {
 181         int i, j;
 182         u32 seg_id_addr;
 183         u32 val;
 184         void __iomem *cm = inst->reg_base.cm;
 185         struct vdec_vp8_vsi *vsi = inst->vsi;
 186 
 187         seg_id_addr = readl(inst->reg_base.top + VP8_SEGID_DRAM_ADDR) >> 4;
 188 
 189         for (i = 0; i < ARRAY_SIZE(vsi->segment_buf); i++) {
 190                 for (j = ARRAY_SIZE(vsi->segment_buf[i]) - 1; j >= 0; j--) {
 191                         val = (1 << 16) + ((seg_id_addr + i) << 2) + j;
 192                         writel(val, cm + VP8_HW_VLD_ADDR);
 193 
 194                         val = vsi->segment_buf[i][j];
 195                         writel(val, cm + VP8_HW_VLD_VALUE);
 196                 }
 197         }
 198 }
 199 
 200 static void read_hw_segmentation_data(struct vdec_vp8_inst *inst)
 201 {
 202         int i, j;
 203         u32 seg_id_addr;
 204         u32 val;
 205         void __iomem *cm = inst->reg_base.cm;
 206         struct vdec_vp8_vsi *vsi = inst->vsi;
 207 
 208         seg_id_addr = readl(inst->reg_base.top + VP8_SEGID_DRAM_ADDR) >> 4;
 209 
 210         for (i = 0; i < ARRAY_SIZE(vsi->segment_buf); i++) {
 211                 for (j = ARRAY_SIZE(vsi->segment_buf[i]) - 1; j >= 0; j--) {
 212                         val = ((seg_id_addr + i) << 2) + j;
 213                         writel(val, cm + VP8_HW_VLD_ADDR);
 214 
 215                         val = readl(cm + VP8_HW_VLD_VALUE);
 216                         vsi->segment_buf[i][j] = val;
 217                 }
 218         }
 219 }
 220 
 221 /* reset HW and enable HW read/write data function */
 222 static void enable_hw_rw_function(struct vdec_vp8_inst *inst)
 223 {
 224         u32 val = 0;
 225         void __iomem *sys = inst->reg_base.sys;
 226         void __iomem *misc = inst->reg_base.misc;
 227         void __iomem *ld = inst->reg_base.ld;
 228         void __iomem *hwb = inst->reg_base.hwb;
 229         void __iomem *hwd = inst->reg_base.hwd;
 230 
 231         writel(0x1, sys + VP8_RW_CKEN_SET);
 232         writel(0x101, ld + VP8_WO_VLD_SRST);
 233         writel(0x101, hwb + VP8_WO_VLD_SRST);
 234 
 235         writel(1, sys);
 236         val = readl(misc + VP8_RW_MISC_SRST);
 237         writel((val & 0xFFFFFFFE), misc + VP8_RW_MISC_SRST);
 238 
 239         writel(0x1, misc + VP8_RW_MISC_SYS_SEL);
 240         writel(0x17F, misc + VP8_RW_MISC_SPEC_CON);
 241         writel(0x71201100, misc + VP8_RW_MISC_FUNC_CON);
 242         writel(0x0, ld + VP8_WO_VLD_SRST);
 243         writel(0x0, hwb + VP8_WO_VLD_SRST);
 244         writel(0x1, sys + VP8_RW_DCM_CON);
 245         writel(0x1, misc + VP8_RW_MISC_DCM_CON);
 246         writel(0x1, hwd + VP8_RW_VP8_CTRL);
 247 }
 248 
 249 static void store_dec_table(struct vdec_vp8_inst *inst)
 250 {
 251         int i, j;
 252         u32 addr = 0, val = 0;
 253         void __iomem *hwd = inst->reg_base.hwd;
 254         u32 *p = &inst->vsi->dec_table[VP8_DEC_TABLE_OFFSET];
 255 
 256         for (i = 0; i < VP8_DEC_TABLE_PROC_LOOP; i++) {
 257                 writel(addr, hwd + VP8_BSASET);
 258                 for (j = 0; j < VP8_DEC_TABLE_UNIT ; j++) {
 259                         val = *p++;
 260                         writel(val, hwd + VP8_BSDSET);
 261                 }
 262                 addr += VP8_DEC_TABLE_RW_UNIT;
 263         }
 264 }
 265 
 266 static void load_dec_table(struct vdec_vp8_inst *inst)
 267 {
 268         int i;
 269         u32 addr = 0;
 270         u32 *p = &inst->vsi->dec_table[VP8_DEC_TABLE_OFFSET];
 271         void __iomem *hwd = inst->reg_base.hwd;
 272 
 273         for (i = 0; i < VP8_DEC_TABLE_PROC_LOOP; i++) {
 274                 writel(addr, hwd + VP8_BSASET);
 275                 /* read total 11 bytes */
 276                 *p++ = readl(hwd + VP8_BSDSET);
 277                 *p++ = readl(hwd + VP8_BSDSET);
 278                 *p++ = readl(hwd + VP8_BSDSET) & 0xFFFFFF;
 279                 addr += VP8_DEC_TABLE_RW_UNIT;
 280         }
 281 }
 282 
 283 static void get_pic_info(struct vdec_vp8_inst *inst, struct vdec_pic_info *pic)
 284 {
 285         *pic = inst->vsi->pic;
 286 
 287         mtk_vcodec_debug(inst, "pic(%d, %d), buf(%d, %d)",
 288                          pic->pic_w, pic->pic_h, pic->buf_w, pic->buf_h);
 289         mtk_vcodec_debug(inst, "fb size: Y(%d), C(%d)",
 290                          pic->fb_sz[0], pic->fb_sz[1]);
 291 }
 292 
 293 static void vp8_dec_finish(struct vdec_vp8_inst *inst)
 294 {
 295         struct vdec_fb_node *node;
 296         uint64_t prev_y_dma = inst->vsi->dec.prev_y_dma;
 297 
 298         mtk_vcodec_debug(inst, "prev fb base dma=%llx", prev_y_dma);
 299 
 300         /* put last decode ok frame to fb_free_list */
 301         if (prev_y_dma != 0) {
 302                 list_for_each_entry(node, &inst->fb_use_list, list) {
 303                         struct vdec_fb *fb = (struct vdec_fb *)node->fb;
 304 
 305                         if (prev_y_dma == (uint64_t)fb->base_y.dma_addr) {
 306                                 list_move_tail(&node->list,
 307                                                &inst->fb_free_list);
 308                                 break;
 309                         }
 310                 }
 311         }
 312 
 313         /* available_fb_node_list -> fb_use_list */
 314         node = list_first_entry(&inst->available_fb_node_list,
 315                                 struct vdec_fb_node, list);
 316         node->fb = inst->cur_fb;
 317         list_move_tail(&node->list, &inst->fb_use_list);
 318 
 319         /* available_fb_node_list -> fb_disp_list */
 320         if (inst->vsi->dec.show_frame) {
 321                 node = list_first_entry(&inst->available_fb_node_list,
 322                                         struct vdec_fb_node, list);
 323                 node->fb = inst->cur_fb;
 324                 list_move_tail(&node->list, &inst->fb_disp_list);
 325         }
 326 }
 327 
 328 static void move_fb_list_use_to_free(struct vdec_vp8_inst *inst)
 329 {
 330         struct vdec_fb_node *node, *tmp;
 331 
 332         list_for_each_entry_safe(node, tmp, &inst->fb_use_list, list)
 333                 list_move_tail(&node->list, &inst->fb_free_list);
 334 }
 335 
 336 static void init_list(struct vdec_vp8_inst *inst)
 337 {
 338         int i;
 339 
 340         INIT_LIST_HEAD(&inst->available_fb_node_list);
 341         INIT_LIST_HEAD(&inst->fb_use_list);
 342         INIT_LIST_HEAD(&inst->fb_free_list);
 343         INIT_LIST_HEAD(&inst->fb_disp_list);
 344 
 345         for (i = 0; i < ARRAY_SIZE(inst->dec_fb); i++) {
 346                 INIT_LIST_HEAD(&inst->dec_fb[i].list);
 347                 inst->dec_fb[i].fb = NULL;
 348                 list_add_tail(&inst->dec_fb[i].list,
 349                               &inst->available_fb_node_list);
 350         }
 351 }
 352 
 353 static void add_fb_to_free_list(struct vdec_vp8_inst *inst, void *fb)
 354 {
 355         struct vdec_fb_node *node;
 356 
 357         if (fb) {
 358                 node = list_first_entry(&inst->available_fb_node_list,
 359                                         struct vdec_fb_node, list);
 360                 node->fb = fb;
 361                 list_move_tail(&node->list, &inst->fb_free_list);
 362         }
 363 }
 364 
 365 static int alloc_working_buf(struct vdec_vp8_inst *inst)
 366 {
 367         int err;
 368         struct mtk_vcodec_mem *mem = &inst->working_buf;
 369 
 370         mem->size = VP8_WORKING_BUF_SZ;
 371         err = mtk_vcodec_mem_alloc(inst->ctx, mem);
 372         if (err) {
 373                 mtk_vcodec_err(inst, "Cannot allocate working buffer");
 374                 return err;
 375         }
 376 
 377         inst->vsi->dec.working_buf_dma = (uint64_t)mem->dma_addr;
 378         return 0;
 379 }
 380 
 381 static void free_working_buf(struct vdec_vp8_inst *inst)
 382 {
 383         struct mtk_vcodec_mem *mem = &inst->working_buf;
 384 
 385         if (mem->va)
 386                 mtk_vcodec_mem_free(inst->ctx, mem);
 387 
 388         inst->vsi->dec.working_buf_dma = 0;
 389 }
 390 
 391 static int vdec_vp8_init(struct mtk_vcodec_ctx *ctx)
 392 {
 393         struct vdec_vp8_inst *inst;
 394         int err;
 395 
 396         inst = kzalloc(sizeof(*inst), GFP_KERNEL);
 397         if (!inst)
 398                 return  -ENOMEM;
 399 
 400         inst->ctx = ctx;
 401 
 402         inst->vpu.id = IPI_VDEC_VP8;
 403         inst->vpu.dev = ctx->dev->vpu_plat_dev;
 404         inst->vpu.ctx = ctx;
 405         inst->vpu.handler = vpu_dec_ipi_handler;
 406 
 407         err = vpu_dec_init(&inst->vpu);
 408         if (err) {
 409                 mtk_vcodec_err(inst, "vdec_vp8 init err=%d", err);
 410                 goto error_free_inst;
 411         }
 412 
 413         inst->vsi = (struct vdec_vp8_vsi *)inst->vpu.vsi;
 414         init_list(inst);
 415         err = alloc_working_buf(inst);
 416         if (err)
 417                 goto error_deinit;
 418 
 419         get_hw_reg_base(inst);
 420         mtk_vcodec_debug(inst, "VP8 Instance >> %p", inst);
 421 
 422         ctx->drv_handle = inst;
 423         return 0;
 424 
 425 error_deinit:
 426         vpu_dec_deinit(&inst->vpu);
 427 error_free_inst:
 428         kfree(inst);
 429         return err;
 430 }
 431 
 432 static int vdec_vp8_decode(void *h_vdec, struct mtk_vcodec_mem *bs,
 433                            struct vdec_fb *fb, bool *res_chg)
 434 {
 435         struct vdec_vp8_inst *inst = (struct vdec_vp8_inst *)h_vdec;
 436         struct vdec_vp8_dec_info *dec = &inst->vsi->dec;
 437         struct vdec_vpu_inst *vpu = &inst->vpu;
 438         unsigned char *bs_va;
 439         unsigned int data;
 440         int err = 0;
 441         uint64_t y_fb_dma;
 442         uint64_t c_fb_dma;
 443 
 444         /* bs NULL means flush decoder */
 445         if (bs == NULL) {
 446                 move_fb_list_use_to_free(inst);
 447                 return vpu_dec_reset(vpu);
 448         }
 449 
 450         y_fb_dma = fb ? (u64)fb->base_y.dma_addr : 0;
 451         c_fb_dma = fb ? (u64)fb->base_c.dma_addr : 0;
 452 
 453         mtk_vcodec_debug(inst, "+ [%d] FB y_dma=%llx c_dma=%llx fb=%p",
 454                          inst->frm_cnt, y_fb_dma, c_fb_dma, fb);
 455 
 456         inst->cur_fb = fb;
 457         dec->bs_dma = (unsigned long)bs->dma_addr;
 458         dec->bs_sz = bs->size;
 459         dec->cur_y_fb_dma = y_fb_dma;
 460         dec->cur_c_fb_dma = c_fb_dma;
 461 
 462         mtk_vcodec_debug(inst, "\n + FRAME[%d] +\n", inst->frm_cnt);
 463 
 464         write_hw_segmentation_data(inst);
 465         enable_hw_rw_function(inst);
 466         store_dec_table(inst);
 467 
 468         bs_va = (unsigned char *)bs->va;
 469 
 470         /* retrieve width/hight and scale info from header */
 471         data = (*(bs_va + 9) << 24) | (*(bs_va + 8) << 16) |
 472                (*(bs_va + 7) << 8) | *(bs_va + 6);
 473         err = vpu_dec_start(vpu, &data, 1);
 474         if (err) {
 475                 add_fb_to_free_list(inst, fb);
 476                 if (dec->wait_key_frame) {
 477                         mtk_vcodec_debug(inst, "wait key frame !");
 478                         return 0;
 479                 }
 480 
 481                 goto error;
 482         }
 483 
 484         if (dec->resolution_changed) {
 485                 mtk_vcodec_debug(inst, "- resolution_changed -");
 486                 *res_chg = true;
 487                 add_fb_to_free_list(inst, fb);
 488                 return 0;
 489         }
 490 
 491         /* wait decoder done interrupt */
 492         mtk_vcodec_wait_for_done_ctx(inst->ctx, MTK_INST_IRQ_RECEIVED,
 493                                      WAIT_INTR_TIMEOUT_MS);
 494 
 495         if (inst->vsi->load_data)
 496                 load_dec_table(inst);
 497 
 498         vp8_dec_finish(inst);
 499         read_hw_segmentation_data(inst);
 500 
 501         err = vpu_dec_end(vpu);
 502         if (err)
 503                 goto error;
 504 
 505         mtk_vcodec_debug(inst, "\n - FRAME[%d] - show=%d\n", inst->frm_cnt,
 506                          dec->show_frame);
 507         inst->frm_cnt++;
 508         *res_chg = false;
 509         return 0;
 510 
 511 error:
 512         mtk_vcodec_err(inst, "\n - FRAME[%d] - err=%d\n", inst->frm_cnt, err);
 513         return err;
 514 }
 515 
 516 static void get_disp_fb(struct vdec_vp8_inst *inst, struct vdec_fb **out_fb)
 517 {
 518         struct vdec_fb_node *node;
 519         struct vdec_fb *fb;
 520 
 521         node = list_first_entry_or_null(&inst->fb_disp_list,
 522                                         struct vdec_fb_node, list);
 523         if (node) {
 524                 list_move_tail(&node->list, &inst->available_fb_node_list);
 525                 fb = (struct vdec_fb *)node->fb;
 526                 fb->status |= FB_ST_DISPLAY;
 527                 mtk_vcodec_debug(inst, "[FB] get disp fb %p st=%d",
 528                                  node->fb, fb->status);
 529         } else {
 530                 fb = NULL;
 531                 mtk_vcodec_debug(inst, "[FB] there is no disp fb");
 532         }
 533 
 534         *out_fb = fb;
 535 }
 536 
 537 static void get_free_fb(struct vdec_vp8_inst *inst, struct vdec_fb **out_fb)
 538 {
 539         struct vdec_fb_node *node;
 540         struct vdec_fb *fb;
 541 
 542         node = list_first_entry_or_null(&inst->fb_free_list,
 543                                         struct vdec_fb_node, list);
 544         if (node) {
 545                 list_move_tail(&node->list, &inst->available_fb_node_list);
 546                 fb = (struct vdec_fb *)node->fb;
 547                 fb->status |= FB_ST_FREE;
 548                 mtk_vcodec_debug(inst, "[FB] get free fb %p st=%d",
 549                                  node->fb, fb->status);
 550         } else {
 551                 fb = NULL;
 552                 mtk_vcodec_debug(inst, "[FB] there is no free fb");
 553         }
 554 
 555         *out_fb = fb;
 556 }
 557 
 558 static void get_crop_info(struct vdec_vp8_inst *inst, struct v4l2_rect *cr)
 559 {
 560         cr->left = 0;
 561         cr->top = 0;
 562         cr->width = inst->vsi->pic.pic_w;
 563         cr->height = inst->vsi->pic.pic_h;
 564         mtk_vcodec_debug(inst, "get crop info l=%d, t=%d, w=%d, h=%d",
 565                          cr->left, cr->top, cr->width, cr->height);
 566 }
 567 
 568 static int vdec_vp8_get_param(void *h_vdec, enum vdec_get_param_type type,
 569                               void *out)
 570 {
 571         struct vdec_vp8_inst *inst = (struct vdec_vp8_inst *)h_vdec;
 572 
 573         switch (type) {
 574         case GET_PARAM_DISP_FRAME_BUFFER:
 575                 get_disp_fb(inst, out);
 576                 break;
 577 
 578         case GET_PARAM_FREE_FRAME_BUFFER:
 579                 get_free_fb(inst, out);
 580                 break;
 581 
 582         case GET_PARAM_PIC_INFO:
 583                 get_pic_info(inst, out);
 584                 break;
 585 
 586         case GET_PARAM_CROP_INFO:
 587                 get_crop_info(inst, out);
 588                 break;
 589 
 590         case GET_PARAM_DPB_SIZE:
 591                 *((unsigned int *)out) = VP8_DPB_SIZE;
 592                 break;
 593 
 594         default:
 595                 mtk_vcodec_err(inst, "invalid get parameter type=%d", type);
 596                 return -EINVAL;
 597         }
 598 
 599         return 0;
 600 }
 601 
 602 static void vdec_vp8_deinit(void *h_vdec)
 603 {
 604         struct vdec_vp8_inst *inst = (struct vdec_vp8_inst *)h_vdec;
 605 
 606         mtk_vcodec_debug_enter(inst);
 607 
 608         vpu_dec_deinit(&inst->vpu);
 609         free_working_buf(inst);
 610         kfree(inst);
 611 }
 612 
 613 const struct vdec_common_if vdec_vp8_if = {
 614         .init           = vdec_vp8_init,
 615         .decode         = vdec_vp8_decode,
 616         .get_param      = vdec_vp8_get_param,
 617         .deinit         = vdec_vp8_deinit,
 618 };
/* [<][>][^][v][top][bottom][index][help] */
root/drivers/media/platform/mtk-vcodec/vdec/vdec_vp8_if.c

DEFINITIONS
