// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2016 MediaTek Inc.
* Author: PC Chen <[email protected]>
* Tiffany Lin <[email protected]>
*/
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <media/v4l2-event.h>
#include <media/v4l2-mem2mem.h>
#include <media/videobuf2-dma-contig.h>
#include "mtk_vcodec_enc.h"
#include "mtk_vcodec_enc_pm.h"
#include "../common/mtk_vcodec_intr.h"
static const struct mtk_video_fmt mtk_video_formats_output[] = {
{
.fourcc = V4L2_PIX_FMT_NV12M,
.type = MTK_FMT_FRAME,
.num_planes = 2,
},
{
.fourcc = V4L2_PIX_FMT_NV21M,
.type = MTK_FMT_FRAME,
.num_planes = 2,
},
{
.fourcc = V4L2_PIX_FMT_YUV420M,
.type = MTK_FMT_FRAME,
.num_planes = 3,
},
{
.fourcc = V4L2_PIX_FMT_YVU420M,
.type = MTK_FMT_FRAME,
.num_planes = 3,
},
};
static const struct mtk_video_fmt mtk_video_formats_capture_h264[] = {
{
.fourcc = V4L2_PIX_FMT_H264,
.type = MTK_FMT_ENC,
.num_planes = 1,
},
};
static const struct mtk_video_fmt mtk_video_formats_capture_vp8[] = {
{
.fourcc = V4L2_PIX_FMT_VP8,
.type = MTK_FMT_ENC,
.num_planes = 1,
},
};
static void clean_irq_status(unsigned int irq_status, void __iomem *addr)
{
if (irq_status & MTK_VENC_IRQ_STATUS_PAUSE)
writel(MTK_VENC_IRQ_STATUS_PAUSE, addr);
if (irq_status & MTK_VENC_IRQ_STATUS_SWITCH)
writel(MTK_VENC_IRQ_STATUS_SWITCH, addr);
if (irq_status & MTK_VENC_IRQ_STATUS_DRAM)
writel(MTK_VENC_IRQ_STATUS_DRAM, addr);
if (irq_status & MTK_VENC_IRQ_STATUS_SPS)
writel(MTK_VENC_IRQ_STATUS_SPS, addr);
if (irq_status & MTK_VENC_IRQ_STATUS_PPS)
writel(MTK_VENC_IRQ_STATUS_PPS, addr);
if (irq_status & MTK_VENC_IRQ_STATUS_FRM)
writel(MTK_VENC_IRQ_STATUS_FRM, addr);
}
static irqreturn_t mtk_vcodec_enc_irq_handler(int irq, void *priv)
{
struct mtk_vcodec_enc_dev *dev = priv;
struct mtk_vcodec_enc_ctx *ctx;
unsigned long flags;
void __iomem *addr;
int core_id;
spin_lock_irqsave(&dev->irqlock, flags);
ctx = dev->curr_ctx;
spin_unlock_irqrestore(&dev->irqlock, flags);
core_id = dev->venc_pdata->core_id;
if (core_id < 0 || core_id >= NUM_MAX_VCODEC_REG_BASE) {
mtk_v4l2_venc_err(ctx, "Invalid core id: %d, ctx id: %d", core_id, ctx->id);
return IRQ_HANDLED;
}
mtk_v4l2_venc_dbg(1, ctx, "id: %d, core id: %d", ctx->id, core_id);
addr = dev->reg_base[core_id] + MTK_VENC_IRQ_ACK_OFFSET;
ctx->irq_status = readl(dev->reg_base[core_id] +
(MTK_VENC_IRQ_STATUS_OFFSET));
clean_irq_status(ctx->irq_status, addr);
wake_up_enc_ctx(ctx, MTK_INST_IRQ_RECEIVED, 0);
return IRQ_HANDLED;
}
static int fops_vcodec_open(struct file *file)
{
struct mtk_vcodec_enc_dev *dev = video_drvdata(file);
struct mtk_vcodec_enc_ctx *ctx = NULL;
int ret = 0;
struct vb2_queue *src_vq;
ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
if (!ctx)
return -ENOMEM;
mutex_lock(&dev->dev_mutex);
/*
* Use simple counter to uniquely identify this context. Only
* used for logging.
*/
ctx->id = dev->id_counter++;
v4l2_fh_init(&ctx->fh, video_devdata(file));
file->private_data = &ctx->fh;
v4l2_fh_add(&ctx->fh);
INIT_LIST_HEAD(&ctx->list);
ctx->dev = dev;
init_waitqueue_head(&ctx->queue[0]);
mutex_init(&ctx->q_mutex);
ctx->type = MTK_INST_ENCODER;
ret = mtk_vcodec_enc_ctrls_setup(ctx);
if (ret) {
mtk_v4l2_venc_err(ctx, "Failed to setup controls() (%d)", ret);
goto err_ctrls_setup;
}
ctx->m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev_enc, ctx,
&mtk_vcodec_enc_queue_init);
if (IS_ERR((__force void *)ctx->m2m_ctx)) {
ret = PTR_ERR((__force void *)ctx->m2m_ctx);
mtk_v4l2_venc_err(ctx, "Failed to v4l2_m2m_ctx_init() (%d)", ret);
goto err_m2m_ctx_init;
}
src_vq = v4l2_m2m_get_vq(ctx->m2m_ctx,
V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE);
ctx->empty_flush_buf.vb.vb2_buf.vb2_queue = src_vq;
mtk_vcodec_enc_set_default_params(ctx);
if (v4l2_fh_is_singular(&ctx->fh)) {
/*
* load fireware to checks if it was loaded already and
* does nothing in that case
*/
ret = mtk_vcodec_fw_load_firmware(dev->fw_handler);
if (ret < 0) {
/*
* Return 0 if downloading firmware successfully,
* otherwise it is failed
*/
mtk_v4l2_venc_err(ctx, "vpu_load_firmware failed!");
goto err_load_fw;
}
dev->enc_capability =
mtk_vcodec_fw_get_venc_capa(dev->fw_handler);
mtk_v4l2_venc_dbg(0, ctx, "encoder capability %x", dev->enc_capability);
}
mtk_v4l2_venc_dbg(2, ctx, "Create instance [%d]@%p m2m_ctx=%p ",
ctx->id, ctx, ctx->m2m_ctx);
mutex_lock(&dev->dev_ctx_lock);
list_add(&ctx->list, &dev->ctx_list);
mutex_unlock(&dev->dev_ctx_lock);
mutex_unlock(&dev->dev_mutex);
mtk_v4l2_venc_dbg(0, ctx, "%s encoder [%d]", dev_name(&dev->plat_dev->dev),
ctx->id);
return ret;
/* Deinit when failure occurred */
err_load_fw:
v4l2_m2m_ctx_release(ctx->m2m_ctx);
err_m2m_ctx_init:
v4l2_ctrl_handler_free(&ctx->ctrl_hdl);
err_ctrls_setup:
v4l2_fh_del(&ctx->fh);
v4l2_fh_exit(&ctx->fh);
kfree(ctx);
mutex_unlock(&dev->dev_mutex);
return ret;
}
static int fops_vcodec_release(struct file *file)
{
struct mtk_vcodec_enc_dev *dev = video_drvdata(file);
struct mtk_vcodec_enc_ctx *ctx = fh_to_enc_ctx(file->private_data);
mtk_v4l2_venc_dbg(1, ctx, "[%d] encoder", ctx->id);
mutex_lock(&dev->dev_mutex);
v4l2_m2m_ctx_release(ctx->m2m_ctx);
mtk_vcodec_enc_release(ctx);
v4l2_fh_del(&ctx->fh);
v4l2_fh_exit(&ctx->fh);
v4l2_ctrl_handler_free(&ctx->ctrl_hdl);
mutex_lock(&dev->dev_ctx_lock);
list_del_init(&ctx->list);
mutex_unlock(&dev->dev_ctx_lock);
kfree(ctx);
mutex_unlock(&dev->dev_mutex);
return 0;
}
static const struct v4l2_file_operations mtk_vcodec_fops = {
.owner = THIS_MODULE,
.open = fops_vcodec_open,
.release = fops_vcodec_release,
.poll = v4l2_m2m_fop_poll,
.unlocked_ioctl = video_ioctl2,
.mmap = v4l2_m2m_fop_mmap,
};
static int mtk_vcodec_probe(struct platform_device *pdev)
{
struct mtk_vcodec_enc_dev *dev;
struct video_device *vfd_enc;
phandle rproc_phandle;
enum mtk_vcodec_fw_type fw_type;
int ret;
dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
if (!dev)
return -ENOMEM;
INIT_LIST_HEAD(&dev->ctx_list);
dev->plat_dev = pdev;
if (!of_property_read_u32(pdev->dev.of_node, "mediatek,vpu",
&rproc_phandle)) {
fw_type = VPU;
} else if (!of_property_read_u32(pdev->dev.of_node, "mediatek,scp",
&rproc_phandle)) {
fw_type = SCP;
} else {
dev_err(&pdev->dev, "[MTK VCODEC] Could not get venc IPI device");
return -ENODEV;
}
dma_set_max_seg_size(&pdev->dev, UINT_MAX);
dev->fw_handler = mtk_vcodec_fw_select(dev, fw_type, ENCODER);
if (IS_ERR(dev->fw_handler))
return PTR_ERR(dev->fw_handler);
dev->venc_pdata = of_device_get_match_data(&pdev->dev);
ret = mtk_vcodec_init_enc_clk(dev);
if (ret < 0) {
dev_err(&pdev->dev, "[MTK VCODEC] Failed to get mtk vcodec clock source!");
goto err_enc_pm;
}
pm_runtime_enable(&pdev->dev);
dev->reg_base[dev->venc_pdata->core_id] =
devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(dev->reg_base[dev->venc_pdata->core_id])) {
ret = PTR_ERR(dev->reg_base[dev->venc_pdata->core_id]);
goto err_res;
}
dev->enc_irq = platform_get_irq(pdev, 0);
if (dev->enc_irq < 0) {
ret = dev->enc_irq;
goto err_res;
}
irq_set_status_flags(dev->enc_irq, IRQ_NOAUTOEN);
ret = devm_request_irq(&pdev->dev, dev->enc_irq,
mtk_vcodec_enc_irq_handler,
0, pdev->name, dev);
if (ret) {
dev_err(&pdev->dev,
"[MTK VCODEC] Failed to install dev->enc_irq %d (%d) core_id (%d)",
dev->enc_irq, ret, dev->venc_pdata->core_id);
ret = -EINVAL;
goto err_res;
}
mutex_init(&dev->enc_mutex);
mutex_init(&dev->dev_mutex);
mutex_init(&dev->dev_ctx_lock);
spin_lock_init(&dev->irqlock);
snprintf(dev->v4l2_dev.name, sizeof(dev->v4l2_dev.name), "%s",
"[MTK_V4L2_VENC]");
ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev);
if (ret) {
dev_err(&pdev->dev, "[MTK VCODEC] v4l2_device_register err=%d", ret);
goto err_res;
}
/* allocate video device for encoder and register it */
vfd_enc = video_device_alloc();
if (!vfd_enc) {
dev_err(&pdev->dev, "[MTK VCODEC] Failed to allocate video device");
ret = -ENOMEM;
goto err_enc_alloc;
}
vfd_enc->fops = &mtk_vcodec_fops;
vfd_enc->ioctl_ops = &mtk_venc_ioctl_ops;
vfd_enc->release = video_device_release;
vfd_enc->lock = &dev->dev_mutex;
vfd_enc->v4l2_dev = &dev->v4l2_dev;
vfd_enc->vfl_dir = VFL_DIR_M2M;
vfd_enc->device_caps = V4L2_CAP_VIDEO_M2M_MPLANE |
V4L2_CAP_STREAMING;
snprintf(vfd_enc->name, sizeof(vfd_enc->name), "%s",
MTK_VCODEC_ENC_NAME);
video_set_drvdata(vfd_enc, dev);
dev->vfd_enc = vfd_enc;
platform_set_drvdata(pdev, dev);
dev->m2m_dev_enc = v4l2_m2m_init(&mtk_venc_m2m_ops);
if (IS_ERR((__force void *)dev->m2m_dev_enc)) {
dev_err(&pdev->dev, "[MTK VCODEC] Failed to init mem2mem enc device");
ret = PTR_ERR((__force void *)dev->m2m_dev_enc);
goto err_enc_mem_init;
}
dev->encode_workqueue =
alloc_ordered_workqueue(MTK_VCODEC_ENC_NAME,
WQ_MEM_RECLAIM |
WQ_FREEZABLE);
if (!dev->encode_workqueue) {
dev_err(&pdev->dev, "[MTK VCODEC] Failed to create encode workqueue");
ret = -EINVAL;
goto err_event_workq;
}
ret = video_register_device(vfd_enc, VFL_TYPE_VIDEO, -1);
if (ret) {
dev_err(&pdev->dev, "[MTK VCODEC] Failed to register video device");
goto err_enc_reg;
}
mtk_vcodec_dbgfs_init(dev, true);
dev_dbg(&pdev->dev, "[MTK VCODEC] encoder %d registered as /dev/video%d",
dev->venc_pdata->core_id, vfd_enc->num);
return 0;
err_enc_reg:
destroy_workqueue(dev->encode_workqueue);
err_event_workq:
v4l2_m2m_release(dev->m2m_dev_enc);
err_enc_mem_init:
video_unregister_device(vfd_enc);
err_enc_alloc:
v4l2_device_unregister(&dev->v4l2_dev);
err_res:
pm_runtime_disable(dev->pm.dev);
err_enc_pm:
mtk_vcodec_fw_release(dev->fw_handler);
return ret;
}
static const struct mtk_vcodec_enc_pdata mt8173_avc_pdata = {
.capture_formats = mtk_video_formats_capture_h264,
.num_capture_formats = ARRAY_SIZE(mtk_video_formats_capture_h264),
.output_formats = mtk_video_formats_output,
.num_output_formats = ARRAY_SIZE(mtk_video_formats_output),
.min_bitrate = 64,
.max_bitrate = 60000000,
.core_id = VENC_SYS,
};
static const struct mtk_vcodec_enc_pdata mt8173_vp8_pdata = {
.capture_formats = mtk_video_formats_capture_vp8,
.num_capture_formats = ARRAY_SIZE(mtk_video_formats_capture_vp8),
.output_formats = mtk_video_formats_output,
.num_output_formats = ARRAY_SIZE(mtk_video_formats_output),
.min_bitrate = 64,
.max_bitrate = 9000000,
.core_id = VENC_LT_SYS,
};
static const struct mtk_vcodec_enc_pdata mt8183_pdata = {
.uses_ext = true,
.capture_formats = mtk_video_formats_capture_h264,
.num_capture_formats = ARRAY_SIZE(mtk_video_formats_capture_h264),
.output_formats = mtk_video_formats_output,
.num_output_formats = ARRAY_SIZE(mtk_video_formats_output),
.min_bitrate = 64,
.max_bitrate = 40000000,
.core_id = VENC_SYS,
};
static const struct mtk_vcodec_enc_pdata mt8188_pdata = {
.uses_ext = true,
.capture_formats = mtk_video_formats_capture_h264,
.num_capture_formats = ARRAY_SIZE(mtk_video_formats_capture_h264),
.output_formats = mtk_video_formats_output,
.num_output_formats = ARRAY_SIZE(mtk_video_formats_output),
.min_bitrate = 64,
.max_bitrate = 50000000,
.core_id = VENC_SYS,
.uses_34bit = true,
};
static const struct mtk_vcodec_enc_pdata mt8192_pdata = {
.uses_ext = true,
.capture_formats = mtk_video_formats_capture_h264,
.num_capture_formats = ARRAY_SIZE(mtk_video_formats_capture_h264),
.output_formats = mtk_video_formats_output,
.num_output_formats = ARRAY_SIZE(mtk_video_formats_output),
.min_bitrate = 64,
.max_bitrate = 100000000,
.core_id = VENC_SYS,
};
static const struct mtk_vcodec_enc_pdata mt8195_pdata = {
.uses_ext = true,
.capture_formats = mtk_video_formats_capture_h264,
.num_capture_formats = ARRAY_SIZE(mtk_video_formats_capture_h264),
.output_formats = mtk_video_formats_output,
.num_output_formats = ARRAY_SIZE(mtk_video_formats_output),
.min_bitrate = 64,
.max_bitrate = 100000000,
.core_id = VENC_SYS,
};
static const struct of_device_id mtk_vcodec_enc_match[] = {
{.compatible = "mediatek,mt8173-vcodec-enc",
.data = &mt8173_avc_pdata},
{.compatible = "mediatek,mt8173-vcodec-enc-vp8",
.data = &mt8173_vp8_pdata},
{.compatible = "mediatek,mt8183-vcodec-enc", .data = &mt8183_pdata},
{.compatible = "mediatek,mt8188-vcodec-enc", .data = &mt8188_pdata},
{.compatible = "mediatek,mt8192-vcodec-enc", .data = &mt8192_pdata},
{.compatible = "mediatek,mt8195-vcodec-enc", .data = &mt8195_pdata},
{},
};
MODULE_DEVICE_TABLE(of, mtk_vcodec_enc_match);
static void mtk_vcodec_enc_remove(struct platform_device *pdev)
{
struct mtk_vcodec_enc_dev *dev = platform_get_drvdata(pdev);
destroy_workqueue(dev->encode_workqueue);
if (dev->m2m_dev_enc)
v4l2_m2m_release(dev->m2m_dev_enc);
if (dev->vfd_enc)
video_unregister_device(dev->vfd_enc);
mtk_vcodec_dbgfs_deinit(&dev->dbgfs);
v4l2_device_unregister(&dev->v4l2_dev);
pm_runtime_disable(dev->pm.dev);
mtk_vcodec_fw_release(dev->fw_handler);
}
static struct platform_driver mtk_vcodec_enc_driver = {
.probe = mtk_vcodec_probe,
.remove_new = mtk_vcodec_enc_remove,
.driver = {
.name = MTK_VCODEC_ENC_NAME,
.of_match_table = mtk_vcodec_enc_match,
},
};
module_platform_driver(mtk_vcodec_enc_driver);
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("Mediatek video codec V4L2 encoder driver");
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