Commit 590577a4 authored by Tiffany Lin's avatar Tiffany Lin Committed by Mauro Carvalho Chehab

[media] vcodec: mediatek: Add Mediatek V4L2 Video Decoder Driver

Add v4l2 layer decoder driver for MT8173

[mchehab@s-opensource.com: make checkpatch.pl happy]
Signed-off-by: default avatarTiffany Lin <tiffany.lin@mediatek.com>
Signed-off-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@s-opensource.com>
parent f3ad804c
obj-$(CONFIG_VIDEO_MEDIATEK_VCODEC) += mtk-vcodec-dec.o \
obj-$(CONFIG_VIDEO_MEDIATEK_VCODEC) += mtk-vcodec-enc.o mtk-vcodec-common.o mtk-vcodec-enc.o \
mtk-vcodec-common.o
mtk-vcodec-dec-y := mtk_vcodec_dec_drv.o \
vdec_drv_if.o \
vdec_vpu_if.o \
mtk_vcodec_dec.o \
mtk_vcodec_dec_pm.o \
mtk-vcodec-enc-y := venc/venc_vp8_if.o \ mtk-vcodec-enc-y := venc/venc_vp8_if.o \
......
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/*
* Copyright (c) 2016 MediaTek Inc.
* Author: PC Chen <pc.chen@mediatek.com>
* Tiffany Lin <tiffany.lin@mediatek.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef _MTK_VCODEC_DEC_H_
#define _MTK_VCODEC_DEC_H_
#include <media/videobuf2-core.h>
#include <media/videobuf2-v4l2.h>
#define VCODEC_CAPABILITY_4K_DISABLED 0x10
#define VCODEC_DEC_4K_CODED_WIDTH 4096U
#define VCODEC_DEC_4K_CODED_HEIGHT 2304U
#define MTK_VDEC_MAX_W 2048U
#define MTK_VDEC_MAX_H 1088U
#define MTK_VDEC_IRQ_STATUS_DEC_SUCCESS 0x10000
/**
* struct vdec_fb - decoder frame buffer
* @base_y : Y plane memory info
* @base_c : C plane memory info
* @status : frame buffer status (vdec_fb_status)
*/
struct vdec_fb {
struct mtk_vcodec_mem base_y;
struct mtk_vcodec_mem base_c;
unsigned int status;
};
/**
* struct mtk_video_dec_buf - Private data related to each VB2 buffer.
* @b: VB2 buffer
* @list: link list
* @used: Capture buffer contain decoded frame data and keep in
* codec data structure
* @ready_to_display: Capture buffer not display yet
* @queued_in_vb2: Capture buffer is queue in vb2
* @queued_in_v4l2: Capture buffer is in v4l2 driver, but not in vb2
* queue yet
* @lastframe: Intput buffer is last buffer - EOS
* @frame_buffer: Decode status, and buffer information of Capture buffer
*
* Note : These status information help us track and debug buffer state
*/
struct mtk_video_dec_buf {
struct vb2_v4l2_buffer vb;
struct list_head list;
bool used;
bool ready_to_display;
bool queued_in_vb2;
bool queued_in_v4l2;
bool lastframe;
struct vdec_fb frame_buffer;
};
extern const struct v4l2_ioctl_ops mtk_vdec_ioctl_ops;
extern const struct v4l2_m2m_ops mtk_vdec_m2m_ops;
/*
* mtk_vdec_lock/mtk_vdec_unlock are for ctx instance to
* get/release lock before/after access decoder hw.
* mtk_vdec_lock get decoder hw lock and set curr_ctx
* to ctx instance that get lock
*/
void mtk_vdec_unlock(struct mtk_vcodec_ctx *ctx);
void mtk_vdec_lock(struct mtk_vcodec_ctx *ctx);
int mtk_vcodec_dec_queue_init(void *priv, struct vb2_queue *src_vq,
struct vb2_queue *dst_vq);
void mtk_vcodec_dec_set_default_params(struct mtk_vcodec_ctx *ctx);
void mtk_vcodec_dec_release(struct mtk_vcodec_ctx *ctx);
int mtk_vcodec_dec_ctrls_setup(struct mtk_vcodec_ctx *ctx);
#endif /* _MTK_VCODEC_DEC_H_ */
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/*
* Copyright (c) 2016 MediaTek Inc.
* Author: Tiffany Lin <tiffany.lin@mediatek.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/clk.h>
#include <linux/of_address.h>
#include <linux/of_platform.h>
#include <linux/pm_runtime.h>
#include <soc/mediatek/smi.h>
#include "mtk_vcodec_dec_pm.h"
#include "mtk_vcodec_util.h"
#include "mtk_vpu.h"
int mtk_vcodec_init_dec_pm(struct mtk_vcodec_dev *mtkdev)
{
struct device_node *node;
struct platform_device *pdev;
struct device *dev;
struct mtk_vcodec_pm *pm;
int ret = 0;
pdev = mtkdev->plat_dev;
pm = &mtkdev->pm;
pm->mtkdev = mtkdev;
dev = &pdev->dev;
node = of_parse_phandle(pdev->dev.of_node, "mediatek,larb", 0);
if (!node) {
mtk_v4l2_err("of_parse_phandle mediatek,larb fail!");
return -1;
}
pdev = of_find_device_by_node(node);
if (WARN_ON(!pdev)) {
of_node_put(node);
return -1;
}
pm->larbvdec = &pdev->dev;
pdev = mtkdev->plat_dev;
pm->dev = &pdev->dev;
pm->vcodecpll = devm_clk_get(&pdev->dev, "vcodecpll");
if (IS_ERR(pm->vcodecpll)) {
mtk_v4l2_err("devm_clk_get vcodecpll fail");
ret = PTR_ERR(pm->vcodecpll);
}
pm->univpll_d2 = devm_clk_get(&pdev->dev, "univpll_d2");
if (IS_ERR(pm->univpll_d2)) {
mtk_v4l2_err("devm_clk_get univpll_d2 fail");
ret = PTR_ERR(pm->univpll_d2);
}
pm->clk_cci400_sel = devm_clk_get(&pdev->dev, "clk_cci400_sel");
if (IS_ERR(pm->clk_cci400_sel)) {
mtk_v4l2_err("devm_clk_get clk_cci400_sel fail");
ret = PTR_ERR(pm->clk_cci400_sel);
}
pm->vdec_sel = devm_clk_get(&pdev->dev, "vdec_sel");
if (IS_ERR(pm->vdec_sel)) {
mtk_v4l2_err("devm_clk_get vdec_sel fail");
ret = PTR_ERR(pm->vdec_sel);
}
pm->vdecpll = devm_clk_get(&pdev->dev, "vdecpll");
if (IS_ERR(pm->vdecpll)) {
mtk_v4l2_err("devm_clk_get vdecpll fail");
ret = PTR_ERR(pm->vdecpll);
}
pm->vencpll = devm_clk_get(&pdev->dev, "vencpll");
if (IS_ERR(pm->vencpll)) {
mtk_v4l2_err("devm_clk_get vencpll fail");
ret = PTR_ERR(pm->vencpll);
}
pm->venc_lt_sel = devm_clk_get(&pdev->dev, "venc_lt_sel");
if (IS_ERR(pm->venc_lt_sel)) {
mtk_v4l2_err("devm_clk_get venc_lt_sel fail");
ret = PTR_ERR(pm->venc_lt_sel);
}
pm->vdec_bus_clk_src = devm_clk_get(&pdev->dev, "vdec_bus_clk_src");
if (IS_ERR(pm->vdec_bus_clk_src)) {
mtk_v4l2_err("devm_clk_get vdec_bus_clk_src");
ret = PTR_ERR(pm->vdec_bus_clk_src);
}
pm_runtime_enable(&pdev->dev);
return ret;
}
void mtk_vcodec_release_dec_pm(struct mtk_vcodec_dev *dev)
{
pm_runtime_disable(dev->pm.dev);
}
void mtk_vcodec_dec_pw_on(struct mtk_vcodec_pm *pm)
{
int ret;
ret = pm_runtime_get_sync(pm->dev);
if (ret)
mtk_v4l2_err("pm_runtime_get_sync fail %d", ret);
}
void mtk_vcodec_dec_pw_off(struct mtk_vcodec_pm *pm)
{
int ret;
ret = pm_runtime_put_sync(pm->dev);
if (ret)
mtk_v4l2_err("pm_runtime_put_sync fail %d", ret);
}
void mtk_vcodec_dec_clock_on(struct mtk_vcodec_pm *pm)
{
int ret;
ret = clk_set_rate(pm->vcodecpll, 1482 * 1000000);
if (ret)
mtk_v4l2_err("clk_set_rate vcodecpll fail %d", ret);
ret = clk_set_rate(pm->vencpll, 800 * 1000000);
if (ret)
mtk_v4l2_err("clk_set_rate vencpll fail %d", ret);
ret = clk_prepare_enable(pm->vcodecpll);
if (ret)
mtk_v4l2_err("clk_prepare_enable vcodecpll fail %d", ret);
ret = clk_prepare_enable(pm->vencpll);
if (ret)
mtk_v4l2_err("clk_prepare_enable vencpll fail %d", ret);
ret = clk_prepare_enable(pm->vdec_bus_clk_src);
if (ret)
mtk_v4l2_err("clk_prepare_enable vdec_bus_clk_src fail %d",
ret);
ret = clk_prepare_enable(pm->venc_lt_sel);
if (ret)
mtk_v4l2_err("clk_prepare_enable venc_lt_sel fail %d", ret);
ret = clk_set_parent(pm->venc_lt_sel, pm->vdec_bus_clk_src);
if (ret)
mtk_v4l2_err("clk_set_parent venc_lt_sel vdec_bus_clk_src fail %d",
ret);
ret = clk_prepare_enable(pm->univpll_d2);
if (ret)
mtk_v4l2_err("clk_prepare_enable univpll_d2 fail %d", ret);
ret = clk_prepare_enable(pm->clk_cci400_sel);
if (ret)
mtk_v4l2_err("clk_prepare_enable clk_cci400_sel fail %d", ret);
ret = clk_set_parent(pm->clk_cci400_sel, pm->univpll_d2);
if (ret)
mtk_v4l2_err("clk_set_parent clk_cci400_sel univpll_d2 fail %d",
ret);
ret = clk_prepare_enable(pm->vdecpll);
if (ret)
mtk_v4l2_err("clk_prepare_enable vdecpll fail %d", ret);
ret = clk_prepare_enable(pm->vdec_sel);
if (ret)
mtk_v4l2_err("clk_prepare_enable vdec_sel fail %d", ret);
ret = clk_set_parent(pm->vdec_sel, pm->vdecpll);
if (ret)
mtk_v4l2_err("clk_set_parent vdec_sel vdecpll fail %d", ret);
ret = mtk_smi_larb_get(pm->larbvdec);
if (ret)
mtk_v4l2_err("mtk_smi_larb_get larbvdec fail %d", ret);
}
void mtk_vcodec_dec_clock_off(struct mtk_vcodec_pm *pm)
{
mtk_smi_larb_put(pm->larbvdec);
clk_disable_unprepare(pm->vdec_sel);
clk_disable_unprepare(pm->vdecpll);
clk_disable_unprepare(pm->univpll_d2);
clk_disable_unprepare(pm->clk_cci400_sel);
clk_disable_unprepare(pm->venc_lt_sel);
clk_disable_unprepare(pm->vdec_bus_clk_src);
clk_disable_unprepare(pm->vencpll);
clk_disable_unprepare(pm->vcodecpll);
}
/*
* Copyright (c) 2016 MediaTek Inc.
* Author: Tiffany Lin <tiffany.lin@mediatek.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef _MTK_VCODEC_DEC_PM_H_
#define _MTK_VCODEC_DEC_PM_H_
#include "mtk_vcodec_drv.h"
int mtk_vcodec_init_dec_pm(struct mtk_vcodec_dev *dev);
void mtk_vcodec_release_dec_pm(struct mtk_vcodec_dev *dev);
void mtk_vcodec_dec_pw_on(struct mtk_vcodec_pm *pm);
void mtk_vcodec_dec_pw_off(struct mtk_vcodec_pm *pm);
void mtk_vcodec_dec_clock_on(struct mtk_vcodec_pm *pm);
void mtk_vcodec_dec_clock_off(struct mtk_vcodec_pm *pm);
#endif /* _MTK_VCODEC_DEC_PM_H_ */
...@@ -22,13 +22,13 @@ ...@@ -22,13 +22,13 @@
#include <media/v4l2-device.h> #include <media/v4l2-device.h>
#include <media/v4l2-ioctl.h> #include <media/v4l2-ioctl.h>
#include <media/videobuf2-core.h> #include <media/videobuf2-core.h>
#include "mtk_vcodec_util.h"
#define MTK_VCODEC_DRV_NAME "mtk_vcodec_drv" #define MTK_VCODEC_DRV_NAME "mtk_vcodec_drv"
#define MTK_VCODEC_DEC_NAME "mtk-vcodec-dec"
#define MTK_VCODEC_ENC_NAME "mtk-vcodec-enc" #define MTK_VCODEC_ENC_NAME "mtk-vcodec-enc"
#define MTK_PLATFORM_STR "platform:mt8173" #define MTK_PLATFORM_STR "platform:mt8173"
#define MTK_VCODEC_MAX_PLANES 3 #define MTK_VCODEC_MAX_PLANES 3
#define MTK_V4L2_BENCHMARK 0 #define MTK_V4L2_BENCHMARK 0
#define WAIT_INTR_TIMEOUT_MS 1000 #define WAIT_INTR_TIMEOUT_MS 1000
...@@ -179,6 +179,9 @@ struct mtk_enc_params { ...@@ -179,6 +179,9 @@ struct mtk_enc_params {
* struct mtk_vcodec_pm - Power management data structure * struct mtk_vcodec_pm - Power management data structure
*/ */
struct mtk_vcodec_pm { struct mtk_vcodec_pm {
struct clk *vdec_bus_clk_src;
struct clk *vencpll;
struct clk *vcodecpll; struct clk *vcodecpll;
struct clk *univpll_d2; struct clk *univpll_d2;
struct clk *clk_cci400_sel; struct clk *clk_cci400_sel;
...@@ -195,6 +198,32 @@ struct mtk_vcodec_pm { ...@@ -195,6 +198,32 @@ struct mtk_vcodec_pm {
struct mtk_vcodec_dev *mtkdev; struct mtk_vcodec_dev *mtkdev;
}; };
/**
* struct vdec_pic_info - picture size information
* @pic_w: picture width
* @pic_h: picture height
* @buf_w: picture buffer width (64 aligned up from pic_w)
* @buf_h: picture buffer heiht (64 aligned up from pic_h)
* @y_bs_sz: Y bitstream size
* @c_bs_sz: CbCr bitstream size
* @y_len_sz: additional size required to store decompress information for y
* plane
* @c_len_sz: additional size required to store decompress information for cbcr
* plane
* E.g. suppose picture size is 176x144,
* buffer size will be aligned to 176x160.
*/
struct vdec_pic_info {
unsigned int pic_w;
unsigned int pic_h;
unsigned int buf_w;
unsigned int buf_h;
unsigned int y_bs_sz;
unsigned int c_bs_sz;
unsigned int y_len_sz;
unsigned int c_len_sz;
};
/** /**
* struct mtk_vcodec_ctx - Context (instance) private data. * struct mtk_vcodec_ctx - Context (instance) private data.
* *
...@@ -209,9 +238,12 @@ struct mtk_vcodec_pm { ...@@ -209,9 +238,12 @@ struct mtk_vcodec_pm {
* @state: state of the context * @state: state of the context
* @param_change: indicate encode parameter type * @param_change: indicate encode parameter type
* @enc_params: encoding parameters * @enc_params: encoding parameters
* @dec_if: hooked decoder driver interface
* @enc_if: hoooked encoder driver interface * @enc_if: hoooked encoder driver interface
* @drv_handle: driver handle for specific decode/encode instance * @drv_handle: driver handle for specific decode/encode instance
* *
* @picinfo: store picture info after header parsing
* @dpb_size: store dpb count after header parsing
* @int_cond: variable used by the waitqueue * @int_cond: variable used by the waitqueue
* @int_type: type of the last interrupt * @int_type: type of the last interrupt
* @queue: waitqueue that can be used to wait for this context to * @queue: waitqueue that can be used to wait for this context to
...@@ -219,12 +251,16 @@ struct mtk_vcodec_pm { ...@@ -219,12 +251,16 @@ struct mtk_vcodec_pm {
* @irq_status: irq status * @irq_status: irq status
* *
* @ctrl_hdl: handler for v4l2 framework * @ctrl_hdl: handler for v4l2 framework
* @decode_work: worker for the decoding
* @encode_work: worker for the encoding * @encode_work: worker for the encoding
* @last_decoded_picinfo: pic information get from latest decode
* *
* @colorspace: enum v4l2_colorspace; supplemental to pixelformat * @colorspace: enum v4l2_colorspace; supplemental to pixelformat
* @ycbcr_enc: enum v4l2_ycbcr_encoding, Y'CbCr encoding * @ycbcr_enc: enum v4l2_ycbcr_encoding, Y'CbCr encoding
* @quantization: enum v4l2_quantization, colorspace quantization * @quantization: enum v4l2_quantization, colorspace quantization
* @xfer_func: enum v4l2_xfer_func, colorspace transfer function * @xfer_func: enum v4l2_xfer_func, colorspace transfer function
* @lock: protect variables accessed by V4L2 threads and worker thread such as
* mtk_video_dec_buf.
*/ */
struct mtk_vcodec_ctx { struct mtk_vcodec_ctx {
enum mtk_instance_type type; enum mtk_instance_type type;
...@@ -239,28 +275,40 @@ struct mtk_vcodec_ctx { ...@@ -239,28 +275,40 @@ struct mtk_vcodec_ctx {
enum mtk_encode_param param_change; enum mtk_encode_param param_change;
struct mtk_enc_params enc_params; struct mtk_enc_params enc_params;
const struct vdec_common_if *dec_if;
const struct venc_common_if *enc_if; const struct venc_common_if *enc_if;
unsigned long drv_handle; unsigned long drv_handle;
struct vdec_pic_info picinfo;
int dpb_size;
int int_cond; int int_cond;
int int_type; int int_type;
wait_queue_head_t queue; wait_queue_head_t queue;
unsigned int irq_status; unsigned int irq_status;
struct v4l2_ctrl_handler ctrl_hdl; struct v4l2_ctrl_handler ctrl_hdl;
struct work_struct decode_work;
struct work_struct encode_work; struct work_struct encode_work;
struct vdec_pic_info last_decoded_picinfo;
enum v4l2_colorspace colorspace; enum v4l2_colorspace colorspace;
enum v4l2_ycbcr_encoding ycbcr_enc; enum v4l2_ycbcr_encoding ycbcr_enc;
enum v4l2_quantization quantization; enum v4l2_quantization quantization;
enum v4l2_xfer_func xfer_func; enum v4l2_xfer_func xfer_func;
int decoded_frame_cnt;
struct mutex lock;
}; };
/** /**
* struct mtk_vcodec_dev - driver data * struct mtk_vcodec_dev - driver data
* @v4l2_dev: V4L2 device to register video devices for. * @v4l2_dev: V4L2 device to register video devices for.
* @vfd_dec: Video device for decoder
* @vfd_enc: Video device for encoder. * @vfd_enc: Video device for encoder.
* *
* @m2m_dev_dec: m2m device for decoder
* @m2m_dev_enc: m2m device for encoder. * @m2m_dev_enc: m2m device for encoder.
* @plat_dev: platform device * @plat_dev: platform device
* @vpu_plat_dev: mtk vpu platform device * @vpu_plat_dev: mtk vpu platform device
...@@ -271,7 +319,6 @@ struct mtk_vcodec_ctx { ...@@ -271,7 +319,6 @@ struct mtk_vcodec_ctx {
* @reg_base: Mapped address of MTK Vcodec registers. * @reg_base: Mapped address of MTK Vcodec registers.
* *
* @id_counter: used to identify current opened instance * @id_counter: used to identify current opened instance
* @num_instances: counter of active MTK Vcodec instances
* *
* @encode_workqueue: encode work queue * @encode_workqueue: encode work queue
* *
...@@ -280,9 +327,11 @@ struct mtk_vcodec_ctx { ...@@ -280,9 +327,11 @@ struct mtk_vcodec_ctx {
* @dev_mutex: video_device lock * @dev_mutex: video_device lock
* @queue: waitqueue for waiting for completion of device commands * @queue: waitqueue for waiting for completion of device commands
* *
* @dec_irq: decoder irq resource
* @enc_irq: h264 encoder irq resource * @enc_irq: h264 encoder irq resource
* @enc_lt_irq: vp8 encoder irq resource * @enc_lt_irq: vp8 encoder irq resource
* *
* @dec_mutex: decoder hardware lock
* @enc_mutex: encoder hardware lock. * @enc_mutex: encoder hardware lock.
* *
* @pm: power management control * @pm: power management control
...@@ -291,8 +340,10 @@ struct mtk_vcodec_ctx { ...@@ -291,8 +340,10 @@ struct mtk_vcodec_ctx {
*/ */
struct mtk_vcodec_dev { struct mtk_vcodec_dev {
struct v4l2_device v4l2_dev; struct v4l2_device v4l2_dev;
struct video_device *vfd_dec;
struct video_device *vfd_enc; struct video_device *vfd_enc;
struct v4l2_m2m_dev *m2m_dev_dec;
struct v4l2_m2m_dev *m2m_dev_enc; struct v4l2_m2m_dev *m2m_dev_enc;
struct platform_device *plat_dev; struct platform_device *plat_dev;
struct platform_device *vpu_plat_dev; struct platform_device *vpu_plat_dev;
...@@ -302,18 +353,19 @@ struct mtk_vcodec_dev { ...@@ -302,18 +353,19 @@ struct mtk_vcodec_dev {
void __iomem *reg_base[NUM_MAX_VCODEC_REG_BASE]; void __iomem *reg_base[NUM_MAX_VCODEC_REG_BASE];
unsigned long id_counter; unsigned long id_counter;
int num_instances;
struct workqueue_struct *decode_workqueue;
struct workqueue_struct *encode_workqueue; struct workqueue_struct *encode_workqueue;
int int_cond; int int_cond;
int int_type; int int_type;
struct mutex dev_mutex; struct mutex dev_mutex;
wait_queue_head_t queue; wait_queue_head_t queue;
int dec_irq;
int enc_irq; int enc_irq;
int enc_lt_irq; int enc_lt_irq;
struct mutex dec_mutex;
struct mutex enc_mutex; struct mutex enc_mutex;
struct mtk_vcodec_pm pm; struct mtk_vcodec_pm pm;
......
...@@ -188,7 +188,6 @@ static int fops_vcodec_open(struct file *file) ...@@ -188,7 +188,6 @@ static int fops_vcodec_open(struct file *file)
mtk_v4l2_debug(2, "Create instance [%d]@%p m2m_ctx=%p ", mtk_v4l2_debug(2, "Create instance [%d]@%p m2m_ctx=%p ",
ctx->id, ctx, ctx->m2m_ctx); ctx->id, ctx, ctx->m2m_ctx);
dev->num_instances++;
list_add(&ctx->list, &dev->ctx_list); list_add(&ctx->list, &dev->ctx_list);
mutex_unlock(&dev->dev_mutex); mutex_unlock(&dev->dev_mutex);
...@@ -218,18 +217,13 @@ static int fops_vcodec_release(struct file *file) ...@@ -218,18 +217,13 @@ static int fops_vcodec_release(struct file *file)
mtk_v4l2_debug(1, "[%d] encoder", ctx->id); mtk_v4l2_debug(1, "[%d] encoder", ctx->id);
mutex_lock(&dev->dev_mutex); mutex_lock(&dev->dev_mutex);
/*
* Call v4l2_m2m_ctx_release to make sure the worker thread is not
* running after venc_if_deinit.
*/
v4l2_m2m_ctx_release(ctx->m2m_ctx);
mtk_vcodec_enc_release(ctx); mtk_vcodec_enc_release(ctx);
v4l2_fh_del(&ctx->fh); v4l2_fh_del(&ctx->fh);
v4l2_fh_exit(&ctx->fh); v4l2_fh_exit(&ctx->fh);
v4l2_ctrl_handler_free(&ctx->ctrl_hdl); v4l2_ctrl_handler_free(&ctx->ctrl_hdl);
v4l2_m2m_ctx_release(ctx->m2m_ctx);
list_del_init(&ctx->list); list_del_init(&ctx->list);
dev->num_instances--;
kfree(ctx); kfree(ctx);
mutex_unlock(&dev->dev_mutex); mutex_unlock(&dev->dev_mutex);
return 0; return 0;
......
...@@ -30,8 +30,7 @@ int mtk_vcodec_wait_for_done_ctx(struct mtk_vcodec_ctx *ctx, int command, ...@@ -30,8 +30,7 @@ int mtk_vcodec_wait_for_done_ctx(struct mtk_vcodec_ctx *ctx, int command,
timeout_jiff = msecs_to_jiffies(timeout_ms); timeout_jiff = msecs_to_jiffies(timeout_ms);
ret = wait_event_interruptible_timeout(*waitqueue, ret = wait_event_interruptible_timeout(*waitqueue,
(ctx->int_cond && ctx->int_cond,
(ctx->int_type == command)),
timeout_jiff); timeout_jiff);
if (!ret) { if (!ret) {
......
...@@ -81,14 +81,37 @@ void mtk_vcodec_mem_free(struct mtk_vcodec_ctx *data, ...@@ -81,14 +81,37 @@ void mtk_vcodec_mem_free(struct mtk_vcodec_ctx *data,
return; return;
} }
dma_free_coherent(dev, size, mem->va, mem->dma_addr);
mem->va = NULL;
mem->dma_addr = 0;
mem->size = 0;
mtk_v4l2_debug(3, "[%d] - va = %p", ctx->id, mem->va); mtk_v4l2_debug(3, "[%d] - va = %p", ctx->id, mem->va);
mtk_v4l2_debug(3, "[%d] - dma = 0x%lx", ctx->id, mtk_v4l2_debug(3, "[%d] - dma = 0x%lx", ctx->id,
(unsigned long)mem->dma_addr); (unsigned long)mem->dma_addr);
mtk_v4l2_debug(3, "[%d] size = 0x%lx", ctx->id, size); mtk_v4l2_debug(3, "[%d] size = 0x%lx", ctx->id, size);
dma_free_coherent(dev, size, mem->va, mem->dma_addr);
mem->va = NULL;
mem->dma_addr = 0;
mem->size = 0;
} }
EXPORT_SYMBOL(mtk_vcodec_mem_free); EXPORT_SYMBOL(mtk_vcodec_mem_free);
void mtk_vcodec_set_curr_ctx(struct mtk_vcodec_dev *dev,
struct mtk_vcodec_ctx *ctx)
{
unsigned long flags;
spin_lock_irqsave(&dev->irqlock, flags);
dev->curr_ctx = ctx;
spin_unlock_irqrestore(&dev->irqlock, flags);
}
EXPORT_SYMBOL(mtk_vcodec_set_curr_ctx);
struct mtk_vcodec_ctx *mtk_vcodec_get_curr_ctx(struct mtk_vcodec_dev *dev)
{
unsigned long flags;
struct mtk_vcodec_ctx *ctx;
spin_lock_irqsave(&dev->irqlock, flags);
ctx = dev->curr_ctx;
spin_unlock_irqrestore(&dev->irqlock, flags);
return ctx;
}
EXPORT_SYMBOL(mtk_vcodec_get_curr_ctx);
...@@ -26,6 +26,7 @@ struct mtk_vcodec_mem { ...@@ -26,6 +26,7 @@ struct mtk_vcodec_mem {
}; };
struct mtk_vcodec_ctx; struct mtk_vcodec_ctx;
struct mtk_vcodec_dev;
extern int mtk_v4l2_dbg_level; extern int mtk_v4l2_dbg_level;
extern bool mtk_vcodec_dbg; extern bool mtk_vcodec_dbg;
...@@ -84,4 +85,8 @@ int mtk_vcodec_mem_alloc(struct mtk_vcodec_ctx *data, ...@@ -84,4 +85,8 @@ int mtk_vcodec_mem_alloc(struct mtk_vcodec_ctx *data,
struct mtk_vcodec_mem *mem); struct mtk_vcodec_mem *mem);
void mtk_vcodec_mem_free(struct mtk_vcodec_ctx *data, void mtk_vcodec_mem_free(struct mtk_vcodec_ctx *data,
struct mtk_vcodec_mem *mem); struct mtk_vcodec_mem *mem);
void mtk_vcodec_set_curr_ctx(struct mtk_vcodec_dev *dev,
struct mtk_vcodec_ctx *ctx);
struct mtk_vcodec_ctx *mtk_vcodec_get_curr_ctx(struct mtk_vcodec_dev *dev);
#endif /* _MTK_VCODEC_UTIL_H_ */ #endif /* _MTK_VCODEC_UTIL_H_ */
/*
* Copyright (c) 2016 MediaTek Inc.
* Author: PC Chen <pc.chen@mediatek.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef _VDEC_DRV_BASE_
#define _VDEC_DRV_BASE_
#include "mtk_vcodec_drv.h"
struct vdec_common_if {
/**
* (*init)() - initialize decode driver
* @ctx : [in] mtk v4l2 context
* @h_vdec : [out] driver handle
*/
int (*init)(struct mtk_vcodec_ctx *ctx, unsigned long *h_vdec);
/**
* (*decode)() - trigger decode
* @h_vdec : [in] driver handle
* @bs : [in] input bitstream
* @fb : [in] frame buffer to store decoded frame
* @res_chg : [out] resolution change happen
*/
int (*decode)(unsigned long h_vdec, struct mtk_vcodec_mem *bs,
struct vdec_fb *fb, bool *res_chg);
/**
* (*get_param)() - get driver's parameter
* @h_vdec : [in] driver handle
* @type : [in] input parameter type
* @out : [out] buffer to store query result
*/
int (*get_param)(unsigned long h_vdec, enum vdec_get_param_type type,
void *out);
/**
* (*deinit)() - deinitialize driver.
* @h_vdec : [in] driver handle to be deinit
*/
void (*deinit)(unsigned long h_vdec);
};
#endif
/*
* Copyright (c) 2016 MediaTek Inc.
* Author: PC Chen <pc.chen@mediatek.com>
* Tiffany Lin <tiffany.lin@mediatek.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include "vdec_drv_if.h"
#include "mtk_vcodec_dec.h"
#include "vdec_drv_base.h"
#include "mtk_vcodec_dec_pm.h"
#include "mtk_vpu.h"
int vdec_if_init(struct mtk_vcodec_ctx *ctx, unsigned int fourcc)
{
int ret = 0;
switch (fourcc) {
case V4L2_PIX_FMT_H264:
case V4L2_PIX_FMT_VP8:
default:
return -EINVAL;
}
mtk_vdec_lock(ctx);
mtk_vcodec_dec_clock_on(&ctx->dev->pm);
ret = ctx->dec_if->init(ctx, &ctx->drv_handle);
mtk_vcodec_dec_clock_off(&ctx->dev->pm);
mtk_vdec_unlock(ctx);
return ret;
}
int vdec_if_decode(struct mtk_vcodec_ctx *ctx, struct mtk_vcodec_mem *bs,
struct vdec_fb *fb, bool *res_chg)
{
int ret = 0;
if (bs) {
if ((bs->dma_addr & 63) != 0) {
mtk_v4l2_err("bs dma_addr should 64 byte align");
return -EINVAL;
}
}
if (fb) {
if (((fb->base_y.dma_addr & 511) != 0) ||
((fb->base_c.dma_addr & 511) != 0)) {
mtk_v4l2_err("frame buffer dma_addr should 512 byte align");
return -EINVAL;
}
}
if (ctx->drv_handle == 0)
return -EIO;
mtk_vdec_lock(ctx);
mtk_vcodec_set_curr_ctx(ctx->dev, ctx);
mtk_vcodec_dec_clock_on(&ctx->dev->pm);
enable_irq(ctx->dev->dec_irq);
ret = ctx->dec_if->decode(ctx->drv_handle, bs, fb, res_chg);
disable_irq(ctx->dev->dec_irq);
mtk_vcodec_dec_clock_off(&ctx->dev->pm);
mtk_vcodec_set_curr_ctx(ctx->dev, NULL);
mtk_vdec_unlock(ctx);
return ret;
}
int vdec_if_get_param(struct mtk_vcodec_ctx *ctx, enum vdec_get_param_type type,
void *out)
{
int ret = 0;
if (ctx->drv_handle == 0)
return -EIO;
mtk_vdec_lock(ctx);
ret = ctx->dec_if->get_param(ctx->drv_handle, type, out);
mtk_vdec_unlock(ctx);
return ret;
}
void vdec_if_deinit(struct mtk_vcodec_ctx *ctx)
{
if (ctx->drv_handle == 0)
return;
mtk_vdec_lock(ctx);
mtk_vcodec_dec_clock_on(&ctx->dev->pm);
ctx->dec_if->deinit(ctx->drv_handle);
mtk_vcodec_dec_clock_off(&ctx->dev->pm);
mtk_vdec_unlock(ctx);
ctx->drv_handle = 0;
}
/*
* Copyright (c) 2016 MediaTek Inc.
* Author: PC Chen <pc.chen@mediatek.com>
* Tiffany Lin <tiffany.lin@mediatek.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef _VDEC_DRV_IF_H_
#define _VDEC_DRV_IF_H_
#include "mtk_vcodec_drv.h"
#include "mtk_vcodec_dec.h"
#include "mtk_vcodec_util.h"
/**
* struct vdec_fb_status - decoder frame buffer status
* @FB_ST_NORMAL : initial state
* @FB_ST_DISPLAY : frmae buffer is ready to be displayed
* @FB_ST_FREE : frame buffer is not used by decoder any more
*/
enum vdec_fb_status {
FB_ST_NORMAL = 0,
FB_ST_DISPLAY = (1 << 0),
FB_ST_FREE = (1 << 1)
};
/* For GET_PARAM_DISP_FRAME_BUFFER and GET_PARAM_FREE_FRAME_BUFFER,
* the caller does not own the returned buffer. The buffer will not be
* released before vdec_if_deinit.
* GET_PARAM_DISP_FRAME_BUFFER : get next displayable frame buffer,
* struct vdec_fb**
* GET_PARAM_FREE_FRAME_BUFFER : get non-referenced framebuffer, vdec_fb**
* GET_PARAM_PIC_INFO : get picture info, struct vdec_pic_info*
* GET_PARAM_CROP_INFO : get crop info, struct v4l2_crop*
* GET_PARAM_DPB_SIZE : get dpb size, unsigned int*
*/
enum vdec_get_param_type {
GET_PARAM_DISP_FRAME_BUFFER,
GET_PARAM_FREE_FRAME_BUFFER,
GET_PARAM_PIC_INFO,
GET_PARAM_CROP_INFO,
GET_PARAM_DPB_SIZE
};
/**
* struct vdec_fb_node - decoder frame buffer node
* @list : list to hold this node
* @fb : point to frame buffer (vdec_fb), fb could point to frame buffer and
* working buffer this is for maintain buffers in different state
*/
struct vdec_fb_node {
struct list_head list;
struct vdec_fb *fb;
};
/**
* vdec_if_init() - initialize decode driver
* @ctx : [in] v4l2 context
* @fourcc : [in] video format fourcc, V4L2_PIX_FMT_H264/VP8/VP9..
*/
int vdec_if_init(struct mtk_vcodec_ctx *ctx, unsigned int fourcc);
/**
* vdec_if_deinit() - deinitialize decode driver
* @ctx : [in] v4l2 context
*
*/
void vdec_if_deinit(struct mtk_vcodec_ctx *ctx);
/**
* vdec_if_decode() - trigger decode
* @ctx : [in] v4l2 context
* @bs : [in] input bitstream
* @fb : [in] frame buffer to store decoded frame, when null menas parse
* header only
* @res_chg : [out] resolution change happens if current bs have different
* picture width/height
* Note: To flush the decoder when reaching EOF, set input bitstream as NULL.
*/
int vdec_if_decode(struct mtk_vcodec_ctx *ctx, struct mtk_vcodec_mem *bs,
struct vdec_fb *fb, bool *res_chg);
/**
* vdec_if_get_param() - get driver's parameter
* @ctx : [in] v4l2 context
* @type : [in] input parameter type
* @out : [out] buffer to store query result
*/
int vdec_if_get_param(struct mtk_vcodec_ctx *ctx, enum vdec_get_param_type type,
void *out);
#endif
/*
* Copyright (c) 2016 MediaTek Inc.
* Author: PC Chen <pc.chen@mediatek.com>
*
* This program is free software; you can redistribute it and/or
* modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef _VDEC_IPI_MSG_H_
#define _VDEC_IPI_MSG_H_
/**
* enum vdec_ipi_msgid - message id between AP and VPU
* @AP_IPIMSG_XXX : AP to VPU cmd message id
* @VPU_IPIMSG_XXX_ACK : VPU ack AP cmd message id
*/
enum vdec_ipi_msgid {
AP_IPIMSG_DEC_INIT = 0xA000,
AP_IPIMSG_DEC_START = 0xA001,
AP_IPIMSG_DEC_END = 0xA002,
AP_IPIMSG_DEC_DEINIT = 0xA003,
AP_IPIMSG_DEC_RESET = 0xA004,
VPU_IPIMSG_DEC_INIT_ACK = 0xB000,
VPU_IPIMSG_DEC_START_ACK = 0xB001,
VPU_IPIMSG_DEC_END_ACK = 0xB002,
VPU_IPIMSG_DEC_DEINIT_ACK = 0xB003,
VPU_IPIMSG_DEC_RESET_ACK = 0xB004,
};
/**
* struct vdec_ap_ipi_cmd - generic AP to VPU ipi command format
* @msg_id : vdec_ipi_msgid
* @vpu_inst_addr : VPU decoder instance address
*/
struct vdec_ap_ipi_cmd {
uint32_t msg_id;
uint32_t vpu_inst_addr;
};
/**
* struct vdec_vpu_ipi_ack - generic VPU to AP ipi command format
* @msg_id : vdec_ipi_msgid
* @status : VPU exeuction result
* @ap_inst_addr : AP video decoder instance address
*/
struct vdec_vpu_ipi_ack {
uint32_t msg_id;
int32_t status;
uint64_t ap_inst_addr;
};
/**
* struct vdec_ap_ipi_init - for AP_IPIMSG_DEC_INIT
* @msg_id : AP_IPIMSG_DEC_INIT
* @reserved : Reserved field
* @ap_inst_addr : AP video decoder instance address
*/
struct vdec_ap_ipi_init {
uint32_t msg_id;
uint32_t reserved;
uint64_t ap_inst_addr;
};
/**
* struct vdec_ap_ipi_dec_start - for AP_IPIMSG_DEC_START
* @msg_id : AP_IPIMSG_DEC_START
* @vpu_inst_addr : VPU decoder instance address
* @data : Header info
* H264 decoder [0]:buf_sz [1]:nal_start
* VP8 decoder [0]:width/height
* VP9 decoder [0]:profile, [1][2] width/height
* @reserved : Reserved field
*/
struct vdec_ap_ipi_dec_start {
uint32_t msg_id;
uint32_t vpu_inst_addr;
uint32_t data[3];
uint32_t reserved;
};
/**
* struct vdec_vpu_ipi_init_ack - for VPU_IPIMSG_DEC_INIT_ACK
* @msg_id : VPU_IPIMSG_DEC_INIT_ACK
* @status : VPU exeuction result
* @ap_inst_addr : AP vcodec_vpu_inst instance address
* @vpu_inst_addr : VPU decoder instance address
*/
struct vdec_vpu_ipi_init_ack {
uint32_t msg_id;
int32_t status;
uint64_t ap_inst_addr;
uint32_t vpu_inst_addr;
};
#endif
/*
* Copyright (c) 2016 MediaTek Inc.
* Author: PC Chen <pc.chen@mediatek.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include "mtk_vcodec_drv.h"
#include "mtk_vcodec_util.h"
#include "vdec_ipi_msg.h"
#include "vdec_vpu_if.h"
static void handle_init_ack_msg(struct vdec_vpu_ipi_init_ack *msg)
{
struct vdec_vpu_inst *vpu = (struct vdec_vpu_inst *)
(unsigned long)msg->ap_inst_addr;
mtk_vcodec_debug(vpu, "+ ap_inst_addr = 0x%llx", msg->ap_inst_addr);
/* mapping VPU address to kernel virtual address */
/* the content in vsi is initialized to 0 in VPU */
vpu->vsi = vpu_mapping_dm_addr(vpu->dev, msg->vpu_inst_addr);
vpu->inst_addr = msg->vpu_inst_addr;
mtk_vcodec_debug(vpu, "- vpu_inst_addr = 0x%x", vpu->inst_addr);
}
/*
* This function runs in interrupt context and it means there's an IPI MSG
* from VPU.
*/
void vpu_dec_ipi_handler(void *data, unsigned int len, void *priv)
{
struct vdec_vpu_ipi_ack *msg = data;
struct vdec_vpu_inst *vpu = (struct vdec_vpu_inst *)
(unsigned long)msg->ap_inst_addr;
mtk_vcodec_debug(vpu, "+ id=%X", msg->msg_id);
if (msg->status == 0) {
switch (msg->msg_id) {
case VPU_IPIMSG_DEC_INIT_ACK:
handle_init_ack_msg(data);
break;
case VPU_IPIMSG_DEC_START_ACK:
case VPU_IPIMSG_DEC_END_ACK:
case VPU_IPIMSG_DEC_DEINIT_ACK:
case VPU_IPIMSG_DEC_RESET_ACK:
break;
default:
mtk_vcodec_err(vpu, "invalid msg=%X", msg->msg_id);
break;
}
}
mtk_vcodec_debug(vpu, "- id=%X", msg->msg_id);
vpu->failure = msg->status;
vpu->signaled = 1;
}
static int vcodec_vpu_send_msg(struct vdec_vpu_inst *vpu, void *msg, int len)
{
int err;
uint32_t msg_id = *(uint32_t *)msg;
mtk_vcodec_debug(vpu, "id=%X", msg_id);
vpu->failure = 0;
vpu->signaled = 0;
err = vpu_ipi_send(vpu->dev, vpu->id, msg, len);
if (err) {
mtk_vcodec_err(vpu, "send fail vpu_id=%d msg_id=%X status=%d",
vpu->id, msg_id, err);
return err;
}
return vpu->failure;
}
static int vcodec_send_ap_ipi(struct vdec_vpu_inst *vpu, unsigned int msg_id)
{
struct vdec_ap_ipi_cmd msg;
int err = 0;
mtk_vcodec_debug(vpu, "+ id=%X", msg_id);
memset(&msg, 0, sizeof(msg));
msg.msg_id = msg_id;
msg.vpu_inst_addr = vpu->inst_addr;
err = vcodec_vpu_send_msg(vpu, &msg, sizeof(msg));
mtk_vcodec_debug(vpu, "- id=%X ret=%d", msg_id, err);
return err;
}
int vpu_dec_init(struct vdec_vpu_inst *vpu)
{
struct vdec_ap_ipi_init msg;
int err;
mtk_vcodec_debug_enter(vpu);
init_waitqueue_head(&vpu->wq);
err = vpu_ipi_register(vpu->dev, vpu->id, vpu->handler, "vdec", NULL);
if (err != 0) {
mtk_vcodec_err(vpu, "vpu_ipi_register fail status=%d", err);
return err;
}
memset(&msg, 0, sizeof(msg));
msg.msg_id = AP_IPIMSG_DEC_INIT;
msg.ap_inst_addr = (unsigned long)vpu;
mtk_vcodec_debug(vpu, "vdec_inst=%p", vpu);
err = vcodec_vpu_send_msg(vpu, (void *)&msg, sizeof(msg));
mtk_vcodec_debug(vpu, "- ret=%d", err);
return err;
}
int vpu_dec_start(struct vdec_vpu_inst *vpu, uint32_t *data, unsigned int len)
{
struct vdec_ap_ipi_dec_start msg;
int i;
int err = 0;
mtk_vcodec_debug_enter(vpu);
if (len > ARRAY_SIZE(msg.data)) {
mtk_vcodec_err(vpu, "invalid len = %d\n", len);
return -EINVAL;
}
memset(&msg, 0, sizeof(msg));
msg.msg_id = AP_IPIMSG_DEC_START;
msg.vpu_inst_addr = vpu->inst_addr;
for (i = 0; i < len; i++)
msg.data[i] = data[i];
err = vcodec_vpu_send_msg(vpu, (void *)&msg, sizeof(msg));
mtk_vcodec_debug(vpu, "- ret=%d", err);
return err;
}
int vpu_dec_end(struct vdec_vpu_inst *vpu)
{
return vcodec_send_ap_ipi(vpu, AP_IPIMSG_DEC_END);
}
int vpu_dec_deinit(struct vdec_vpu_inst *vpu)
{
return vcodec_send_ap_ipi(vpu, AP_IPIMSG_DEC_DEINIT);
}
int vpu_dec_reset(struct vdec_vpu_inst *vpu)
{
return vcodec_send_ap_ipi(vpu, AP_IPIMSG_DEC_RESET);
}
/*
* Copyright (c) 2016 MediaTek Inc.
* Author: PC Chen <pc.chen@mediatek.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef _VDEC_VPU_IF_H_
#define _VDEC_VPU_IF_H_
#include "mtk_vpu.h"
/**
* struct vdec_vpu_inst - VPU instance for video codec
* @ipi_id : ipi id for each decoder
* @vsi : driver structure allocated by VPU side and shared to AP side
* for control and info share
* @failure : VPU execution result status, 0: success, others: fail
* @inst_addr : VPU decoder instance address
* @signaled : 1 - Host has received ack message from VPU, 0 - not received
* @ctx : context for v4l2 layer integration
* @dev : platform device of VPU
* @wq : wait queue to wait VPU message ack
* @handler : ipi handler for each decoder
*/
struct vdec_vpu_inst {
enum ipi_id id;
void *vsi;
int32_t failure;
uint32_t inst_addr;
unsigned int signaled;
struct mtk_vcodec_ctx *ctx;
struct platform_device *dev;
wait_queue_head_t wq;
ipi_handler_t handler;
};
/**
* vpu_dec_init - init decoder instance and allocate required resource in VPU.
*
* @vpu: instance for vdec_vpu_inst
*/
int vpu_dec_init(struct vdec_vpu_inst *vpu);
/**
* vpu_dec_start - start decoding, basically the function will be invoked once
* every frame.
*
* @vpu : instance for vdec_vpu_inst
* @data: meta data to pass bitstream info to VPU decoder
* @len : meta data length
*/
int vpu_dec_start(struct vdec_vpu_inst *vpu, uint32_t *data, unsigned int len);
/**
* vpu_dec_end - end decoding, basically the function will be invoked once
* when HW decoding done interrupt received successfully. The
* decoder in VPU will continute to do referene frame management
* and check if there is a new decoded frame available to display.
*
* @vpu : instance for vdec_vpu_inst
*/
int vpu_dec_end(struct vdec_vpu_inst *vpu);
/**
* vpu_dec_deinit - deinit decoder instance and resource freed in VPU.
*
* @vpu: instance for vdec_vpu_inst
*/
int vpu_dec_deinit(struct vdec_vpu_inst *vpu);
/**
* vpu_dec_reset - reset decoder, use for flush decoder when end of stream or
* seek. Remainig non displayed frame will be pushed to display.
*
* @vpu: instance for vdec_vpu_inst
*/
int vpu_dec_reset(struct vdec_vpu_inst *vpu);
/**
* vpu_dec_ipi_handler - Handler for VPU ipi message.
*
* @data: ipi message
* @len : length of ipi message
* @priv: callback private data which is passed by decoder when register.
*/
void vpu_dec_ipi_handler(void *data, unsigned int len, void *priv);
#endif
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