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media: mtk-vcodec: abstract firmware interface

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MT8183's codec firmware is run by a different remote processor from
MT8173. While the firmware interface is basically the same, the way to
invoke it differs. Abstract all firmware calls under a layer that will
allow us to handle both firmware types transparently.

[acourbot: refactor, cleanup and split]
[pihsun: fix error path and add mtk_vcodec_fw_release]
[hverkuil: fixed some checkpatch alignment warnings]
[hverkuil: fixed merge conflicts]

Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
Co-developed-by: Alexandre Courbot <acourbot@chromium.org>
Signed-off-by: Alexandre Courbot <acourbot@chromium.org>
Signed-off-by: Pi-Hsun Shih <pihsun@chromium.org>
Reviewed-by: Tiffany Lin <tiffany.lin@mediatek.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Yunfei Dong
2020-08-21 12:35:52 +02:00
committed by Mauro Carvalho Chehab
parent cbd2dca749
commit bf1d556ad4
21 changed files with 293 additions and 102 deletions
Download Patch File Download Diff File Expand all files Collapse all files

46
drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c
View File

@@ -21,7 +21,7 @@
#include "mtk_vcodec_enc_pm.h"
#include "mtk_vcodec_intr.h"
#include "mtk_vcodec_util.h"
#include "mtk_vpu.h"
#include "mtk_vcodec_fw.h"
module_param(mtk_v4l2_dbg_level, int, S_IRUGO | S_IWUSR);
module_param(mtk_vcodec_dbg, bool, S_IRUGO | S_IWUSR);
@@ -101,22 +101,6 @@ static irqreturn_t mtk_vcodec_enc_lt_irq_handler(int irq, void *priv)
return IRQ_HANDLED;
}
static void mtk_vcodec_enc_reset_handler(void *priv)
{
struct mtk_vcodec_dev *dev = priv;
struct mtk_vcodec_ctx *ctx;
mtk_v4l2_debug(0, "Watchdog timeout!!");
mutex_lock(&dev->dev_mutex);
list_for_each_entry(ctx, &dev->ctx_list, list) {
ctx->state = MTK_STATE_ABORT;
mtk_v4l2_debug(0, "[%d] Change to state MTK_STATE_ABORT",
ctx->id);
}
mutex_unlock(&dev->dev_mutex);
}
static int fops_vcodec_open(struct file *file)
{
struct mtk_vcodec_dev *dev = video_drvdata(file);
@@ -159,10 +143,10 @@ static int fops_vcodec_open(struct file *file)
if (v4l2_fh_is_singular(&ctx->fh)) {
/*
* vpu_load_firmware checks if it was loaded already and
* load fireware to checks if it was loaded already and
* does nothing in that case
*/
ret = vpu_load_firmware(dev->vpu_plat_dev);
ret = mtk_vcodec_fw_load_firmware(dev->fw_handler);
if (ret < 0) {
/*
* Return 0 if downloading firmware successfully,
@@ -173,7 +157,7 @@ static int fops_vcodec_open(struct file *file)
}
dev->enc_capability =
vpu_get_venc_hw_capa(dev->vpu_plat_dev);
mtk_vcodec_fw_get_venc_capa(dev->fw_handler);
mtk_v4l2_debug(0, "encoder capability %x", dev->enc_capability);
}
@@ -235,6 +219,8 @@ static int mtk_vcodec_probe(struct platform_device *pdev)
struct mtk_vcodec_dev *dev;
struct video_device *vfd_enc;
struct resource *res;
phandle rproc_phandle;
enum mtk_vcodec_fw_type fw_type;
int i, j, ret;
dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
@@ -244,10 +230,12 @@ static int mtk_vcodec_probe(struct platform_device *pdev)
INIT_LIST_HEAD(&dev->ctx_list);
dev->plat_dev = pdev;
dev->vpu_plat_dev = vpu_get_plat_device(dev->plat_dev);
if (dev->vpu_plat_dev == NULL) {
mtk_v4l2_err("[VPU] vpu device in not ready");
return -EPROBE_DEFER;
if (!of_property_read_u32(pdev->dev.of_node, "mediatek,vpu",
&rproc_phandle)) {
fw_type = VPU;
} else {
mtk_v4l2_err("Could not get venc IPI device");
return -ENODEV;
}
if (!pdev->dev.dma_parms) {
pdev->dev.dma_parms = devm_kzalloc(&pdev->dev,
@@ -258,13 +246,14 @@ static int mtk_vcodec_probe(struct platform_device *pdev)
}
dma_set_max_seg_size(&pdev->dev, DMA_BIT_MASK(32));
vpu_wdt_reg_handler(dev->vpu_plat_dev, mtk_vcodec_enc_reset_handler,
dev, VPU_RST_ENC);
dev->fw_handler = mtk_vcodec_fw_select(dev, fw_type, VPU_RST_ENC);
if (IS_ERR(dev->fw_handler))
return PTR_ERR(dev->fw_handler);
ret = mtk_vcodec_init_enc_pm(dev);
if (ret < 0) {
dev_err(&pdev->dev, "Failed to get mt vcodec clock source!");
return ret;
goto err_enc_pm;
}
for (i = VENC_SYS, j = 0; i < NUM_MAX_VCODEC_REG_BASE; i++, j++) {
@@ -385,6 +374,8 @@ err_enc_alloc:
v4l2_device_unregister(&dev->v4l2_dev);
err_res:
mtk_vcodec_release_enc_pm(dev);
err_enc_pm:
mtk_vcodec_fw_release(dev->fw_handler);
return ret;
}
@@ -409,6 +400,7 @@ static int mtk_vcodec_enc_remove(struct platform_device *pdev)
v4l2_device_unregister(&dev->v4l2_dev);
mtk_vcodec_release_enc_pm(dev);
mtk_vcodec_fw_release(dev->fw_handler);
return 0;
}