drivers/media/platform/mtk-vcodec/mtk_vcodec_fw_vpu.c

   1 // SPDX-License-Identifier: GPL-2.0
   2
   3 #include "mtk_vcodec_fw_priv.h"
   4 #include "mtk_vcodec_util.h"
   5 #include "mtk_vcodec_drv.h"
   6
   7 static int mtk_vcodec_vpu_load_firmware(struct mtk_vcodec_fw *fw)
   8 {
   9         return vpu_load_firmware(fw->pdev);
  10 }
  11
  12 static unsigned int mtk_vcodec_vpu_get_vdec_capa(struct mtk_vcodec_fw *fw)
  13 {
  14         return vpu_get_vdec_hw_capa(fw->pdev);
  15 }
  16
  17 static unsigned int mtk_vcodec_vpu_get_venc_capa(struct mtk_vcodec_fw *fw)
  18 {
  19         return vpu_get_venc_hw_capa(fw->pdev);
  20 }
  21
  22 static void *mtk_vcodec_vpu_map_dm_addr(struct mtk_vcodec_fw *fw,
  23                                         u32 dtcm_dmem_addr)
  24 {
  25         return vpu_mapping_dm_addr(fw->pdev, dtcm_dmem_addr);
  26 }
  27
  28 static int mtk_vcodec_vpu_set_ipi_register(struct mtk_vcodec_fw *fw, int id,
  29                                            mtk_vcodec_ipi_handler handler,
  30                                            const char *name, void *priv)
  31 {
  32         /*
  33          * The handler we receive takes a void * as its first argument. We
  34          * cannot change this because it needs to be passed down to the rproc
  35          * subsystem when SCP is used. VPU takes a const argument, which is
  36          * more constrained, so the conversion below is safe.
  37          */
  38         ipi_handler_t handler_const = (ipi_handler_t)handler;
  39
  40         return vpu_ipi_register(fw->pdev, id, handler_const, name, priv);
  41 }
  42
  43 static int mtk_vcodec_vpu_ipi_send(struct mtk_vcodec_fw *fw, int id, void *buf,
  44                                    unsigned int len, unsigned int wait)
  45 {
  46         return vpu_ipi_send(fw->pdev, id, buf, len);
  47 }
  48
  49 static void mtk_vcodec_vpu_release(struct mtk_vcodec_fw *fw)
  50 {
  51         put_device(&fw->pdev->dev);
  52 }
  53
  54 static void mtk_vcodec_vpu_reset_handler(void *priv)
  55 {
  56         struct mtk_vcodec_dev *dev = priv;
  57         struct mtk_vcodec_ctx *ctx;
  58
  59         mtk_v4l2_err("Watchdog timeout!!");
  60
  61         mutex_lock(&dev->dev_mutex);
  62         list_for_each_entry(ctx, &dev->ctx_list, list) {
  63                 ctx->state = MTK_STATE_ABORT;
  64                 mtk_v4l2_debug(0, "[%d] Change to state MTK_STATE_ABORT",
  65                                ctx->id);
  66         }
  67         mutex_unlock(&dev->dev_mutex);
  68 }
  69
  70 static const struct mtk_vcodec_fw_ops mtk_vcodec_vpu_msg = {
  71         .load_firmware = mtk_vcodec_vpu_load_firmware,
  72         .get_vdec_capa = mtk_vcodec_vpu_get_vdec_capa,
  73         .get_venc_capa = mtk_vcodec_vpu_get_venc_capa,
  74         .map_dm_addr = mtk_vcodec_vpu_map_dm_addr,
  75         .ipi_register = mtk_vcodec_vpu_set_ipi_register,
  76         .ipi_send = mtk_vcodec_vpu_ipi_send,
  77         .release = mtk_vcodec_vpu_release,
  78 };
  79
  80 struct mtk_vcodec_fw *mtk_vcodec_fw_vpu_init(struct mtk_vcodec_dev *dev,
  81                                              enum mtk_vcodec_fw_use fw_use)
  82 {
  83         struct platform_device *fw_pdev;
  84         struct mtk_vcodec_fw *fw;
  85         enum rst_id rst_id;
  86
  87         switch (fw_use) {
  88         case ENCODER:
  89                 rst_id = VPU_RST_ENC;
  90                 break;
  91         case DECODER:
  92         default:
  93                 rst_id = VPU_RST_DEC;
  94                 break;
  95         }
  96
  97         fw_pdev = vpu_get_plat_device(dev->plat_dev);
  98         if (!fw_pdev) {
  99                 mtk_v4l2_err("firmware device is not ready");
 100                 return ERR_PTR(-EINVAL);
 101         }
 102         vpu_wdt_reg_handler(fw_pdev, mtk_vcodec_vpu_reset_handler, dev, rst_id);
 103
 104         fw = devm_kzalloc(&dev->plat_dev->dev, sizeof(*fw), GFP_KERNEL);
 105         fw->type = VPU;
 106         fw->ops = &mtk_vcodec_vpu_msg;
 107         fw->pdev = fw_pdev;
 108
 109         return fw;
 110 }