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

Add v4l2 layer encoder driver for MT8173

Signed-off-by: Tiffany Lin <tiffany.lin@mediatek.com>
[hans.verkuil@cisco.com: drop unnecessary ARM || ARM64 dependency]
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Tiffany Lin 2016-05-03 07:11:24 -03:00 committed by Mauro Carvalho Chehab
parent e6d28fd679
commit 4e855a6efa
17 changed files with 3137 additions and 0 deletions
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17
drivers/media/platform/Kconfig
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@ -166,6 +166,23 @@ config VIDEO_MEDIATEK_VPU
To compile this driver as a module, choose M here: the
module will be called mtk-vpu.
config VIDEO_MEDIATEK_VCODEC
tristate "Mediatek Video Codec driver"
depends on MTK_IOMMU
depends on VIDEO_DEV && VIDEO_V4L2
depends on ARCH_MEDIATEK || COMPILE_TEST
select VIDEOBUF2_DMA_CONTIG
select V4L2_MEM2MEM_DEV
select VIDEO_MEDIATEK_VPU
default n
---help---
Mediatek video codec driver provides HW capability to
encode and decode in a range of video formats
This driver rely on VPU driver to communicate with VPU.
To compile this driver as a module, choose M here: the
module will be called mtk-vcodec
config VIDEO_MEM2MEM_DEINTERLACE
tristate "Deinterlace support"
depends on VIDEO_DEV && VIDEO_V4L2 && DMA_ENGINE

2
drivers/media/platform/Makefile
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@ -60,3 +60,5 @@ obj-$(CONFIG_VIDEO_RCAR_VIN) += rcar-vin/
ccflags-y += -I$(srctree)/drivers/media/i2c
obj-$(CONFIG_VIDEO_MEDIATEK_VPU) += mtk-vpu/
obj-$(CONFIG_VIDEO_MEDIATEK_VCODEC) += mtk-vcodec/

14
drivers/media/platform/mtk-vcodec/Makefile Normal file
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@ -0,0 +1,14 @@
obj-$(CONFIG_VIDEO_MEDIATEK_VCODEC) += mtk-vcodec-enc.o mtk-vcodec-common.o
mtk-vcodec-enc-y := mtk_vcodec_enc.o \
mtk_vcodec_enc_drv.o \
mtk_vcodec_enc_pm.o \
venc_drv_if.o \
mtk-vcodec-common-y := mtk_vcodec_intr.o \
mtk_vcodec_util.o\
ccflags-y += -I$(srctree)/drivers/media/platform/mtk-vpu

338
drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h Normal file
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@ -0,0 +1,338 @@
/*
* 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_DRV_H_
#define _MTK_VCODEC_DRV_H_
#include <linux/platform_device.h>
#include <linux/videodev2.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-device.h>
#include <media/v4l2-ioctl.h>
#include <media/videobuf2-core.h>
#include "mtk_vcodec_util.h"
#define MTK_VCODEC_DRV_NAME "mtk_vcodec_drv"
#define MTK_VCODEC_ENC_NAME "mtk-vcodec-enc"
#define MTK_PLATFORM_STR "platform:mt8173"
#define MTK_VCODEC_MAX_PLANES 3
#define MTK_V4L2_BENCHMARK 0
#define WAIT_INTR_TIMEOUT_MS 1000
/**
* enum mtk_hw_reg_idx - MTK hw register base index
*/
enum mtk_hw_reg_idx {
VDEC_SYS,
VDEC_MISC,
VDEC_LD,
VDEC_TOP,
VDEC_CM,
VDEC_AD,
VDEC_AV,
VDEC_PP,
VDEC_HWD,
VDEC_HWQ,
VDEC_HWB,
VDEC_HWG,
NUM_MAX_VDEC_REG_BASE,
/* h264 encoder */
VENC_SYS = NUM_MAX_VDEC_REG_BASE,
/* vp8 encoder */
VENC_LT_SYS,
NUM_MAX_VCODEC_REG_BASE
};
/**
* enum mtk_instance_type - The type of an MTK Vcodec instance.
*/
enum mtk_instance_type {
MTK_INST_DECODER = 0,
MTK_INST_ENCODER = 1,
};
/**
* enum mtk_instance_state - The state of an MTK Vcodec instance.
* @MTK_STATE_FREE - default state when instance is created
* @MTK_STATE_INIT - vcodec instance is initialized
* @MTK_STATE_HEADER - vdec had sps/pps header parsed or venc
* had sps/pps header encoded
* @MTK_STATE_FLUSH - vdec is flushing. Only used by decoder
* @MTK_STATE_ABORT - vcodec should be aborted
*/
enum mtk_instance_state {
MTK_STATE_FREE = 0,
MTK_STATE_INIT = 1,
MTK_STATE_HEADER = 2,
MTK_STATE_FLUSH = 3,
MTK_STATE_ABORT = 4,
};
/**
* struct mtk_encode_param - General encoding parameters type
*/
enum mtk_encode_param {
MTK_ENCODE_PARAM_NONE = 0,
MTK_ENCODE_PARAM_BITRATE = (1 << 0),
MTK_ENCODE_PARAM_FRAMERATE = (1 << 1),
MTK_ENCODE_PARAM_INTRA_PERIOD = (1 << 2),
MTK_ENCODE_PARAM_FORCE_INTRA = (1 << 3),
MTK_ENCODE_PARAM_GOP_SIZE = (1 << 4),
};
enum mtk_fmt_type {
MTK_FMT_DEC = 0,
MTK_FMT_ENC = 1,
MTK_FMT_FRAME = 2,
};
/**
* struct mtk_video_fmt - Structure used to store information about pixelformats
*/
struct mtk_video_fmt {
u32 fourcc;
enum mtk_fmt_type type;
u32 num_planes;
};
/**
* struct mtk_codec_framesizes - Structure used to store information about
* framesizes
*/
struct mtk_codec_framesizes {
u32 fourcc;
struct v4l2_frmsize_stepwise stepwise;
};
/**
* struct mtk_q_type - Type of queue
*/
enum mtk_q_type {
MTK_Q_DATA_SRC = 0,
MTK_Q_DATA_DST = 1,
};
/**
* struct mtk_q_data - Structure used to store information about queue
*/
struct mtk_q_data {
unsigned int visible_width;
unsigned int visible_height;
unsigned int coded_width;
unsigned int coded_height;
enum v4l2_field field;
unsigned int bytesperline[MTK_VCODEC_MAX_PLANES];
unsigned int sizeimage[MTK_VCODEC_MAX_PLANES];
struct mtk_video_fmt *fmt;
};
/**
* struct mtk_enc_params - General encoding parameters
* @bitrate: target bitrate in bits per second
* @num_b_frame: number of b frames between p-frame
* @rc_frame: frame based rate control
* @rc_mb: macroblock based rate control
* @seq_hdr_mode: H.264 sequence header is encoded separately or joined
* with the first frame
* @intra_period: I frame period
* @gop_size: group of picture size, it's used as the intra frame period
* @framerate_num: frame rate numerator. ex: framerate_num=30 and
* framerate_denom=1 menas FPS is 30
* @framerate_denom: frame rate denominator. ex: framerate_num=30 and
* framerate_denom=1 menas FPS is 30
* @h264_max_qp: Max value for H.264 quantization parameter
* @h264_profile: V4L2 defined H.264 profile
* @h264_level: V4L2 defined H.264 level
* @force_intra: force/insert intra frame
*/
struct mtk_enc_params {
unsigned int bitrate;
unsigned int num_b_frame;
unsigned int rc_frame;
unsigned int rc_mb;
unsigned int seq_hdr_mode;
unsigned int intra_period;
unsigned int gop_size;
unsigned int framerate_num;
unsigned int framerate_denom;
unsigned int h264_max_qp;
unsigned int h264_profile;
unsigned int h264_level;
unsigned int force_intra;
};
/**
* struct mtk_vcodec_pm - Power management data structure
*/
struct mtk_vcodec_pm {
struct clk *vcodecpll;
struct clk *univpll_d2;
struct clk *clk_cci400_sel;
struct clk *vdecpll;
struct clk *vdec_sel;
struct clk *vencpll_d2;
struct clk *venc_sel;
struct clk *univpll1_d2;
struct clk *venc_lt_sel;
struct device *larbvdec;
struct device *larbvenc;
struct device *larbvenclt;
struct device *dev;
struct mtk_vcodec_dev *mtkdev;
};
/**
* struct mtk_vcodec_ctx - Context (instance) private data.
*
* @type: type of the instance - decoder or encoder
* @dev: pointer to the mtk_vcodec_dev of the device
* @list: link to ctx_list of mtk_vcodec_dev
* @fh: struct v4l2_fh
* @m2m_ctx: pointer to the v4l2_m2m_ctx of the context
* @q_data: store information of input and output queue
* of the context
* @id: index of the context that this structure describes
* @state: state of the context
* @param_change: indicate encode parameter type
* @enc_params: encoding parameters
* @enc_if: hoooked encoder driver interface
* @drv_handle: driver handle for specific decode/encode instance
*
* @int_cond: variable used by the waitqueue
* @int_type: type of the last interrupt
* @queue: waitqueue that can be used to wait for this context to
* finish
* @irq_status: irq status
*
* @ctrl_hdl: handler for v4l2 framework
* @encode_work: worker for the encoding
*
* @colorspace: enum v4l2_colorspace; supplemental to pixelformat
* @ycbcr_enc: enum v4l2_ycbcr_encoding, Y'CbCr encoding
* @quantization: enum v4l2_quantization, colorspace quantization
* @xfer_func: enum v4l2_xfer_func, colorspace transfer function
*/
struct mtk_vcodec_ctx {
enum mtk_instance_type type;
struct mtk_vcodec_dev *dev;
struct list_head list;
struct v4l2_fh fh;
struct v4l2_m2m_ctx *m2m_ctx;
struct mtk_q_data q_data[2];
int id;
enum mtk_instance_state state;
enum mtk_encode_param param_change;
struct mtk_enc_params enc_params;
struct venc_common_if *enc_if;
unsigned long drv_handle;
int int_cond;
int int_type;
wait_queue_head_t queue;
unsigned int irq_status;
struct v4l2_ctrl_handler ctrl_hdl;
struct work_struct encode_work;
enum v4l2_colorspace colorspace;
enum v4l2_ycbcr_encoding ycbcr_enc;
enum v4l2_quantization quantization;
enum v4l2_xfer_func xfer_func;
};
/**
* struct mtk_vcodec_dev - driver data
* @v4l2_dev: V4L2 device to register video devices for.
* @vfd_enc: Video device for encoder.
*
* @m2m_dev_enc: m2m device for encoder.
* @plat_dev: platform device
* @vpu_plat_dev: mtk vpu platform device
* @alloc_ctx: VB2 allocator context
* (for allocations without kernel mapping).
* @ctx_list: list of struct mtk_vcodec_ctx
* @irqlock: protect data access by irq handler and work thread
* @curr_ctx: The context that is waiting for codec hardware
*
* @reg_base: Mapped address of MTK Vcodec registers.
*
* @id_counter: used to identify current opened instance
* @num_instances: counter of active MTK Vcodec instances
*
* @encode_workqueue: encode work queue
*
* @int_cond: used to identify interrupt condition happen
* @int_type: used to identify what kind of interrupt condition happen
* @dev_mutex: video_device lock
* @queue: waitqueue for waiting for completion of device commands
*
* @enc_irq: h264 encoder irq resource
* @enc_lt_irq: vp8 encoder irq resource
*
* @enc_mutex: encoder hardware lock.
*
* @pm: power management control
* @dec_capability: used to identify decode capability, ex: 4k
* @enc_capability: used to identify encode capability
*/
struct mtk_vcodec_dev {
struct v4l2_device v4l2_dev;
struct video_device *vfd_enc;
struct v4l2_m2m_dev *m2m_dev_enc;
struct platform_device *plat_dev;
struct platform_device *vpu_plat_dev;
struct vb2_alloc_ctx *alloc_ctx;
struct list_head ctx_list;
spinlock_t irqlock;
struct mtk_vcodec_ctx *curr_ctx;
void __iomem *reg_base[NUM_MAX_VCODEC_REG_BASE];
unsigned long id_counter;
int num_instances;
struct workqueue_struct *encode_workqueue;
int int_cond;
int int_type;
struct mutex dev_mutex;
wait_queue_head_t queue;
int enc_irq;
int enc_lt_irq;
struct mutex enc_mutex;
struct mtk_vcodec_pm pm;
unsigned int dec_capability;
unsigned int enc_capability;
};
static inline struct mtk_vcodec_ctx *fh_to_ctx(struct v4l2_fh *fh)
{
return container_of(fh, struct mtk_vcodec_ctx, fh);
}
static inline struct mtk_vcodec_ctx *ctrl_to_ctx(struct v4l2_ctrl *ctrl)
{
return container_of(ctrl->handler, struct mtk_vcodec_ctx, ctrl_hdl);
}
#endif /* _MTK_VCODEC_DRV_H_ */

1288
drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c Normal file
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File diff suppressed because it is too large Load Diff

58
drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.h Normal file
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@ -0,0 +1,58 @@
/*
* 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_ENC_H_
#define _MTK_VCODEC_ENC_H_
#include <media/videobuf2-core.h>
#include <media/videobuf2-v4l2.h>
#define MTK_VENC_IRQ_STATUS_SPS 0x1
#define MTK_VENC_IRQ_STATUS_PPS 0x2
#define MTK_VENC_IRQ_STATUS_FRM 0x4
#define MTK_VENC_IRQ_STATUS_DRAM 0x8
#define MTK_VENC_IRQ_STATUS_PAUSE 0x10
#define MTK_VENC_IRQ_STATUS_SWITCH 0x20
#define MTK_VENC_IRQ_STATUS_OFFSET 0x05C
#define MTK_VENC_IRQ_ACK_OFFSET 0x060
/**
* struct mtk_video_enc_buf - Private data related to each VB2 buffer.
* @vb: Pointer to related VB2 buffer.
* @list: list that buffer link to
* @param_change: Types of encode parameter change before encoding this
* buffer
* @enc_params: Encode parameters changed before encode this buffer
*/
struct mtk_video_enc_buf {
struct vb2_v4l2_buffer vb;
struct list_head list;
u32 param_change;
struct mtk_enc_params enc_params;
};
extern const struct v4l2_ioctl_ops mtk_venc_ioctl_ops;
extern const struct v4l2_m2m_ops mtk_venc_m2m_ops;
int mtk_venc_unlock(struct mtk_vcodec_ctx *ctx);
int mtk_venc_lock(struct mtk_vcodec_ctx *ctx);
int mtk_vcodec_enc_queue_init(void *priv, struct vb2_queue *src_vq,
struct vb2_queue *dst_vq);
void mtk_vcodec_enc_release(struct mtk_vcodec_ctx *ctx);
int mtk_vcodec_enc_ctrls_setup(struct mtk_vcodec_ctx *ctx);
void mtk_vcodec_enc_set_default_params(struct mtk_vcodec_ctx *ctx);
#endif /* _MTK_VCODEC_ENC_H_ */

454
drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c Normal file
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@ -0,0 +1,454 @@
/*
* 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/slab.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/of.h>
#include <media/v4l2-event.h>
#include <media/v4l2-mem2mem.h>
#include <media/videobuf2-dma-contig.h>
#include <linux/pm_runtime.h>
#include "mtk_vcodec_drv.h"
#include "mtk_vcodec_enc.h"
#include "mtk_vcodec_enc_pm.h"
#include "mtk_vcodec_intr.h"
#include "mtk_vcodec_util.h"
#include "mtk_vpu.h"
module_param(mtk_v4l2_dbg_level, int, S_IRUGO | S_IWUSR);
module_param(mtk_vcodec_dbg, bool, S_IRUGO | S_IWUSR);
/* Wake up context wait_queue */
static void wake_up_ctx(struct mtk_vcodec_ctx *ctx, unsigned int reason)
{
ctx->int_cond = 1;
ctx->int_type = reason;
wake_up_interruptible(&ctx->queue);
}
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_dev *dev = priv;
struct mtk_vcodec_ctx *ctx;
unsigned long flags;
void __iomem *addr;
spin_lock_irqsave(&dev->irqlock, flags);
ctx = dev->curr_ctx;
spin_unlock_irqrestore(&dev->irqlock, flags);
mtk_v4l2_debug(1, "id=%d", ctx->id);
addr = dev->reg_base[VENC_SYS] + MTK_VENC_IRQ_ACK_OFFSET;
ctx->irq_status = readl(dev->reg_base[VENC_SYS] +
(MTK_VENC_IRQ_STATUS_OFFSET));
clean_irq_status(ctx->irq_status, addr);
wake_up_ctx(ctx, MTK_INST_IRQ_RECEIVED);
return IRQ_HANDLED;
}
static irqreturn_t mtk_vcodec_enc_lt_irq_handler(int irq, void *priv)
{
struct mtk_vcodec_dev *dev = priv;
struct mtk_vcodec_ctx *ctx;
unsigned long flags;
void __iomem *addr;
spin_lock_irqsave(&dev->irqlock, flags);
ctx = dev->curr_ctx;
spin_unlock_irqrestore(&dev->irqlock, flags);
mtk_v4l2_debug(1, "id=%d", ctx->id);
ctx->irq_status = readl(dev->reg_base[VENC_LT_SYS] +
(MTK_VENC_IRQ_STATUS_OFFSET));
addr = dev->reg_base[VENC_LT_SYS] + MTK_VENC_IRQ_ACK_OFFSET;
clean_irq_status(ctx->irq_status, addr);
wake_up_ctx(ctx, MTK_INST_IRQ_RECEIVED);
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);
struct mtk_vcodec_ctx *ctx = NULL;
int ret = 0;
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);
ctx->type = MTK_INST_ENCODER;
ret = mtk_vcodec_enc_ctrls_setup(ctx);
if (ret) {
mtk_v4l2_err("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_err("Failed to v4l2_m2m_ctx_init() (%d)",
ret);
goto err_m2m_ctx_init;
}
mtk_vcodec_enc_set_default_params(ctx);
if (v4l2_fh_is_singular(&ctx->fh)) {
/*
* vpu_load_firmware checks if it was loaded already and
* does nothing in that case
*/
ret = vpu_load_firmware(dev->vpu_plat_dev);
if (ret < 0) {
/*
* Return 0 if downloading firmware successfully,
* otherwise it is failed
*/
mtk_v4l2_err("vpu_load_firmware failed!");
goto err_load_fw;
}
dev->enc_capability =
vpu_get_venc_hw_capa(dev->vpu_plat_dev);
mtk_v4l2_debug(0, "encoder capability %x", dev->enc_capability);
}
mtk_v4l2_debug(2, "Create instance [%d]@%p m2m_ctx=%p ",
ctx->id, ctx, ctx->m2m_ctx);
dev->num_instances++;
list_add(&ctx->list, &dev->ctx_list);
mutex_unlock(&dev->dev_mutex);
mtk_v4l2_debug(0, "%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_dev *dev = video_drvdata(file);
struct mtk_vcodec_ctx *ctx = fh_to_ctx(file->private_data);
mtk_v4l2_debug(1, "[%d] encoder", ctx->id);
mutex_lock(&dev->dev_mutex);
mtk_vcodec_enc_release(ctx);
v4l2_fh_del(&ctx->fh);
v4l2_fh_exit(&ctx->fh);
v4l2_ctrl_handler_free(&ctx->ctrl_hdl);
v4l2_m2m_ctx_release(ctx->m2m_ctx);
list_del_init(&ctx->list);
dev->num_instances--;
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_dev *dev;
struct video_device *vfd_enc;
struct resource *res;
int i, j, ret;
DEFINE_DMA_ATTRS(attrs);
dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
if (!dev)
return -ENOMEM;
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;
}
vpu_wdt_reg_handler(dev->vpu_plat_dev, mtk_vcodec_enc_reset_handler,
dev, VPU_RST_ENC);
ret = mtk_vcodec_init_enc_pm(dev);
if (ret < 0) {
dev_err(&pdev->dev, "Failed to get mt vcodec clock source!");
return ret;
}
for (i = VENC_SYS, j = 0; i < NUM_MAX_VCODEC_REG_BASE; i++, j++) {
res = platform_get_resource(pdev, IORESOURCE_MEM, j);
if (res == NULL) {
dev_err(&pdev->dev, "get memory resource failed.");
ret = -ENXIO;
goto err_res;
}
dev->reg_base[i] = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR((__force void *)dev->reg_base[i])) {
dev_err(&pdev->dev,
"devm_ioremap_resource %d failed.", i);
ret = PTR_ERR((__force void *)dev->reg_base[i]);
goto err_res;
}
mtk_v4l2_debug(2, "reg[%d] base=0x%p", i, dev->reg_base[i]);
}
res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (res == NULL) {
dev_err(&pdev->dev, "failed to get irq resource");
ret = -ENOENT;
goto err_res;
}
dev->enc_irq = platform_get_irq(pdev, 0);
ret = devm_request_irq(&pdev->dev, dev->enc_irq,
mtk_vcodec_enc_irq_handler,
0, pdev->name, dev);
if (ret) {
dev_err(&pdev->dev, "Failed to install dev->enc_irq %d (%d)",
dev->enc_irq,
ret);
ret = -EINVAL;
goto err_res;
}
dev->enc_lt_irq = platform_get_irq(pdev, 1);
ret = devm_request_irq(&pdev->dev,
dev->enc_lt_irq, mtk_vcodec_enc_lt_irq_handler,
0, pdev->name, dev);
if (ret) {
dev_err(&pdev->dev,
"Failed to install dev->enc_lt_irq %d (%d)",
dev->enc_lt_irq, ret);
ret = -EINVAL;
goto err_res;
}
disable_irq(dev->enc_irq);
disable_irq(dev->enc_lt_irq); /* VENC_LT */
mutex_init(&dev->enc_mutex);
mutex_init(&dev->dev_mutex);
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) {
mtk_v4l2_err("v4l2_device_register err=%d", ret);
goto err_res;
}
init_waitqueue_head(&dev->queue);
/* allocate video device for encoder and register it */
vfd_enc = video_device_alloc();
if (!vfd_enc) {
mtk_v4l2_err("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->alloc_ctx = vb2_dma_contig_init_ctx(&pdev->dev);
if (IS_ERR((__force void *)dev->alloc_ctx)) {
mtk_v4l2_err("Failed to alloc vb2 dma context 0");
ret = PTR_ERR((__force void *)dev->alloc_ctx);
dev->alloc_ctx = NULL;
goto err_vb2_ctx_init;
}
dev->m2m_dev_enc = v4l2_m2m_init(&mtk_venc_m2m_ops);
if (IS_ERR((__force void *)dev->m2m_dev_enc)) {
mtk_v4l2_err("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) {
mtk_v4l2_err("Failed to create encode workqueue");
ret = -EINVAL;
goto err_event_workq;
}
ret = video_register_device(vfd_enc, VFL_TYPE_GRABBER, 1);
if (ret) {
mtk_v4l2_err("Failed to register video device");
goto err_enc_reg;
}
/* Avoid the iommu eat big hunks */
dma_set_attr(DMA_ATTR_ALLOC_SINGLE_PAGES, &attrs);
mtk_v4l2_debug(0, "encoder registered as /dev/video%d",
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:
vb2_dma_contig_cleanup_ctx(dev->alloc_ctx);
err_vb2_ctx_init:
video_unregister_device(vfd_enc);
err_enc_alloc:
v4l2_device_unregister(&dev->v4l2_dev);
err_res:
mtk_vcodec_release_enc_pm(dev);
return ret;
}
static const struct of_device_id mtk_vcodec_enc_match[] = {
{.compatible = "mediatek,mt8173-vcodec-enc",},
{},
};
MODULE_DEVICE_TABLE(of, mtk_vcodec_enc_match);
static int mtk_vcodec_enc_remove(struct platform_device *pdev)
{
struct mtk_vcodec_dev *dev = platform_get_drvdata(pdev);
mtk_v4l2_debug_enter();
flush_workqueue(dev->encode_workqueue);
destroy_workqueue(dev->encode_workqueue);
if (dev->m2m_dev_enc)
v4l2_m2m_release(dev->m2m_dev_enc);
if (dev->alloc_ctx)
vb2_dma_contig_cleanup_ctx(dev->alloc_ctx);
if (dev->vfd_enc)
video_unregister_device(dev->vfd_enc);
v4l2_device_unregister(&dev->v4l2_dev);
mtk_vcodec_release_enc_pm(dev);
return 0;
}
static struct platform_driver mtk_vcodec_enc_driver = {
.probe = mtk_vcodec_probe,
.remove = mtk_vcodec_enc_remove,
.driver = {
.name = MTK_VCODEC_ENC_NAME,
.owner = THIS_MODULE,
.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");

137
drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_pm.c Normal file
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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_enc_pm.h"
#include "mtk_vcodec_util.h"
#include "mtk_vpu.h"
int mtk_vcodec_init_enc_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;
memset(pm, 0, sizeof(struct mtk_vcodec_pm));
pm->mtkdev = mtkdev;
pm->dev = &pdev->dev;
dev = &pdev->dev;
node = of_parse_phandle(dev->of_node, "mediatek,larb", 0);
if (!node) {
mtk_v4l2_err("no mediatek,larb found");
return -1;
}
pdev = of_find_device_by_node(node);
if (!pdev) {
mtk_v4l2_err("no mediatek,larb device found");
return -1;
}
pm->larbvenc = &pdev->dev;
node = of_parse_phandle(dev->of_node, "mediatek,larb", 1);
if (!node) {
mtk_v4l2_err("no mediatek,larb found");
return -1;
}
pdev = of_find_device_by_node(node);
if (!pdev) {
mtk_v4l2_err("no mediatek,larb device found");
return -1;
}
pm->larbvenclt = &pdev->dev;
pdev = mtkdev->plat_dev;
pm->dev = &pdev->dev;
pm->vencpll_d2 = devm_clk_get(&pdev->dev, "venc_sel_src");
if (pm->vencpll_d2 == NULL) {
mtk_v4l2_err("devm_clk_get vencpll_d2 fail");
ret = -1;
}
pm->venc_sel = devm_clk_get(&pdev->dev, "venc_sel");
if (pm->venc_sel == NULL) {
mtk_v4l2_err("devm_clk_get venc_sel fail");
ret = -1;
}
pm->univpll1_d2 = devm_clk_get(&pdev->dev, "venc_lt_sel_src");
if (pm->univpll1_d2 == NULL) {
mtk_v4l2_err("devm_clk_get univpll1_d2 fail");
ret = -1;
}
pm->venc_lt_sel = devm_clk_get(&pdev->dev, "venc_lt_sel");
if (pm->venc_lt_sel == NULL) {
mtk_v4l2_err("devm_clk_get venc_lt_sel fail");
ret = -1;
}
return ret;
}
void mtk_vcodec_release_enc_pm(struct mtk_vcodec_dev *mtkdev)
{
}
void mtk_vcodec_enc_clock_on(struct mtk_vcodec_pm *pm)
{
int ret;
ret = clk_prepare_enable(pm->venc_sel);
if (ret)
mtk_v4l2_err("clk_prepare_enable fail %d", ret);
ret = clk_set_parent(pm->venc_sel, pm->vencpll_d2);
if (ret)
mtk_v4l2_err("clk_set_parent fail %d", ret);
ret = clk_prepare_enable(pm->venc_lt_sel);
if (ret)
mtk_v4l2_err("clk_prepare_enable fail %d", ret);
ret = clk_set_parent(pm->venc_lt_sel, pm->univpll1_d2);
if (ret)
mtk_v4l2_err("clk_set_parent fail %d", ret);
ret = mtk_smi_larb_get(pm->larbvenc);
if (ret)
mtk_v4l2_err("mtk_smi_larb_get larb3 fail %d", ret);
ret = mtk_smi_larb_get(pm->larbvenclt);
if (ret)
mtk_v4l2_err("mtk_smi_larb_get larb4 fail %d", ret);
}
void mtk_vcodec_enc_clock_off(struct mtk_vcodec_pm *pm)
{
mtk_smi_larb_put(pm->larbvenc);
mtk_smi_larb_put(pm->larbvenclt);
clk_disable_unprepare(pm->venc_lt_sel);
clk_disable_unprepare(pm->venc_sel);
}

26
drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_pm.h Normal file
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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.
*/
#ifndef _MTK_VCODEC_ENC_PM_H_
#define _MTK_VCODEC_ENC_PM_H_
#include "mtk_vcodec_drv.h"
int mtk_vcodec_init_enc_pm(struct mtk_vcodec_dev *dev);
void mtk_vcodec_release_enc_pm(struct mtk_vcodec_dev *dev);
void mtk_vcodec_enc_clock_on(struct mtk_vcodec_pm *pm);
void mtk_vcodec_enc_clock_off(struct mtk_vcodec_pm *pm);
#endif /* _MTK_VCODEC_ENC_PM_H_ */

54
drivers/media/platform/mtk-vcodec/mtk_vcodec_intr.c Normal file
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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/errno.h>
#include <linux/wait.h>
#include "mtk_vcodec_drv.h"
#include "mtk_vcodec_intr.h"
#include "mtk_vcodec_util.h"
int mtk_vcodec_wait_for_done_ctx(struct mtk_vcodec_ctx *ctx, int command,
unsigned int timeout_ms)
{
wait_queue_head_t *waitqueue;
long timeout_jiff, ret;
int status = 0;
waitqueue = (wait_queue_head_t *)&ctx->queue;
timeout_jiff = msecs_to_jiffies(timeout_ms);
ret = wait_event_interruptible_timeout(*waitqueue,
(ctx->int_cond &&
(ctx->int_type == command)),
timeout_jiff);
if (!ret) {
status = -1; /* timeout */
mtk_v4l2_err("[%d] cmd=%d, ctx->type=%d, wait_event_interruptible_timeout time=%ums out %d %d!",
ctx->id, ctx->type, command, timeout_ms,
ctx->int_cond, ctx->int_type);
} else if (-ERESTARTSYS == ret) {
mtk_v4l2_err("[%d] cmd=%d, ctx->type=%d, wait_event_interruptible_timeout interrupted by a signal %d %d",
ctx->id, ctx->type, command, ctx->int_cond,
ctx->int_type);
status = -1;
}
ctx->int_cond = 0;
ctx->int_type = 0;
return status;
}
EXPORT_SYMBOL(mtk_vcodec_wait_for_done_ctx);

27
drivers/media/platform/mtk-vcodec/mtk_vcodec_intr.h Normal file
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@ -0,0 +1,27 @@
/*
* 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_INTR_H_
#define _MTK_VCODEC_INTR_H_
#define MTK_INST_IRQ_RECEIVED 0x1
#define MTK_INST_WORK_THREAD_ABORT_DONE 0x2
struct mtk_vcodec_ctx;
/* timeout is ms */
int mtk_vcodec_wait_for_done_ctx(struct mtk_vcodec_ctx *data, int command,
unsigned int timeout_ms);
#endif /* _MTK_VCODEC_INTR_H_ */

94
drivers/media/platform/mtk-vcodec/mtk_vcodec_util.c Normal file
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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.
*/
#include <linux/module.h>
#include "mtk_vcodec_drv.h"
#include "mtk_vcodec_util.h"
#include "mtk_vpu.h"
/* For encoder, this will enable logs in venc/*/
bool mtk_vcodec_dbg;
EXPORT_SYMBOL(mtk_vcodec_dbg);
/* The log level of v4l2 encoder or decoder driver.
* That is, files under mtk-vcodec/.
*/
int mtk_v4l2_dbg_level;
EXPORT_SYMBOL(mtk_v4l2_dbg_level);
void __iomem *mtk_vcodec_get_reg_addr(struct mtk_vcodec_ctx *data,
unsigned int reg_idx)
{
struct mtk_vcodec_ctx *ctx = (struct mtk_vcodec_ctx *)data;
if (!data || reg_idx >= NUM_MAX_VCODEC_REG_BASE) {
mtk_v4l2_err("Invalid arguments, reg_idx=%d", reg_idx);
return NULL;
}
return ctx->dev->reg_base[reg_idx];
}
EXPORT_SYMBOL(mtk_vcodec_get_reg_addr);
int mtk_vcodec_mem_alloc(struct mtk_vcodec_ctx *data,
struct mtk_vcodec_mem *mem)
{
unsigned long size = mem->size;
struct mtk_vcodec_ctx *ctx = (struct mtk_vcodec_ctx *)data;
struct device *dev = &ctx->dev->plat_dev->dev;
mem->va = dma_alloc_coherent(dev, size, &mem->dma_addr, GFP_KERNEL);
if (!mem->va) {
mtk_v4l2_err("%s dma_alloc size=%ld failed!", dev_name(dev),
size);
return -ENOMEM;
}
memset(mem->va, 0, size);
mtk_v4l2_debug(3, "[%d] - va = %p", ctx->id, mem->va);
mtk_v4l2_debug(3, "[%d] - dma = 0x%lx", ctx->id,
(unsigned long)mem->dma_addr);
mtk_v4l2_debug(3, "[%d] size = 0x%lx", ctx->id, size);
return 0;
}
EXPORT_SYMBOL(mtk_vcodec_mem_alloc);
void mtk_vcodec_mem_free(struct mtk_vcodec_ctx *data,
struct mtk_vcodec_mem *mem)
{
unsigned long size = mem->size;
struct mtk_vcodec_ctx *ctx = (struct mtk_vcodec_ctx *)data;
struct device *dev = &ctx->dev->plat_dev->dev;
if (!mem->va) {
mtk_v4l2_err("%s dma_free size=%ld failed!", dev_name(dev),
size);
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] - dma = 0x%lx", ctx->id,
(unsigned long)mem->dma_addr);
mtk_v4l2_debug(3, "[%d] size = 0x%lx", ctx->id, size);
}
EXPORT_SYMBOL(mtk_vcodec_mem_free);

87
drivers/media/platform/mtk-vcodec/mtk_vcodec_util.h Normal file
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@ -0,0 +1,87 @@
/*
* 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_UTIL_H_
#define _MTK_VCODEC_UTIL_H_
#include <linux/types.h>
#include <linux/dma-direction.h>
struct mtk_vcodec_mem {
size_t size;
void *va;
dma_addr_t dma_addr;
};
struct mtk_vcodec_ctx;
extern int mtk_v4l2_dbg_level;
extern bool mtk_vcodec_dbg;
#define DEBUG 1
#if defined(DEBUG)
#define mtk_v4l2_debug(level, fmt, args...) \
do { \
if (mtk_v4l2_dbg_level >= level) \
pr_info("[MTK_V4L2] level=%d %s(),%d: " fmt "\n",\
level, __func__, __LINE__, ##args); \
} while (0)
#define mtk_v4l2_err(fmt, args...) \
pr_err("[MTK_V4L2][ERROR] %s:%d: " fmt "\n", __func__, __LINE__, \
##args)
#define mtk_v4l2_debug_enter() mtk_v4l2_debug(3, "+")
#define mtk_v4l2_debug_leave() mtk_v4l2_debug(3, "-")
#define mtk_vcodec_debug(h, fmt, args...) \
do { \
if (mtk_vcodec_dbg) \
pr_info("[MTK_VCODEC][%d]: %s() " fmt "\n", \
((struct mtk_vcodec_ctx *)h->ctx)->id, \
__func__, ##args); \
} while (0)
#define mtk_vcodec_err(h, fmt, args...) \
pr_err("[MTK_VCODEC][ERROR][%d]: %s() " fmt "\n", \
((struct mtk_vcodec_ctx *)h->ctx)->id, __func__, ##args)
#define mtk_vcodec_debug_enter(h) mtk_vcodec_debug(h, "+")
#define mtk_vcodec_debug_leave(h) mtk_vcodec_debug(h, "-")
#else
#define mtk_v4l2_debug(level, fmt, args...)
#define mtk_v4l2_err(fmt, args...)
#define mtk_v4l2_debug_enter()
#define mtk_v4l2_debug_leave()
#define mtk_vcodec_debug(h, fmt, args...)
#define mtk_vcodec_err(h, fmt, args...)
#define mtk_vcodec_debug_enter(h)
#define mtk_vcodec_debug_leave(h)
#endif
void __iomem *mtk_vcodec_get_reg_addr(struct mtk_vcodec_ctx *data,
unsigned int reg_idx);
int mtk_vcodec_mem_alloc(struct mtk_vcodec_ctx *data,
struct mtk_vcodec_mem *mem);
void mtk_vcodec_mem_free(struct mtk_vcodec_ctx *data,
struct mtk_vcodec_mem *mem);
#endif /* _MTK_VCODEC_UTIL_H_ */

62
drivers/media/platform/mtk-vcodec/venc_drv_base.h Normal file
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@ -0,0 +1,62 @@
/*
* Copyright (c) 2016 MediaTek Inc.
* Author: Daniel Hsiao <daniel.hsiao@mediatek.com>
* Jungchang Tsao <jungchang.tsao@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 _VENC_DRV_BASE_
#define _VENC_DRV_BASE_
#include "mtk_vcodec_drv.h"
#include "venc_drv_if.h"
struct venc_common_if {
/**
* (*init)() - initialize driver
* @ctx: [in] mtk v4l2 context
* @handle: [out] driver handle
*/
int (*init)(struct mtk_vcodec_ctx *ctx, unsigned long *handle);
/**
* (*encode)() - trigger encode
* @handle: [in] driver handle
* @opt: [in] encode option
* @frm_buf: [in] frame buffer to store input frame
* @bs_buf: [in] bitstream buffer to store output bitstream
* @result: [out] encode result
*/
int (*encode)(unsigned long handle, enum venc_start_opt opt,
struct venc_frm_buf *frm_buf,
struct mtk_vcodec_mem *bs_buf,
struct venc_done_result *result);
/**
* (*set_param)() - set driver's parameter
* @handle: [in] driver handle
* @type: [in] parameter type
* @in: [in] buffer to store the parameter
*/
int (*set_param)(unsigned long handle, enum venc_set_param_type type,
struct venc_enc_param *in);
/**
* (*deinit)() - deinitialize driver.
* @handle: [in] driver handle
*/
int (*deinit)(unsigned long handle);
};
#endif

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drivers/media/platform/mtk-vcodec/venc_drv_if.c Normal file
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/*
* Copyright (c) 2016 MediaTek Inc.
* Author: Daniel Hsiao <daniel.hsiao@mediatek.com>
* Jungchang Tsao <jungchang.tsao@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 "venc_drv_if.h"
#include "mtk_vcodec_enc.h"
#include "mtk_vcodec_enc_pm.h"
#include "mtk_vpu.h"
#include "venc_drv_base.h"
int venc_if_init(struct mtk_vcodec_ctx *ctx, unsigned int fourcc)
{
int ret = 0;
switch (fourcc) {
case V4L2_PIX_FMT_VP8:
case V4L2_PIX_FMT_H264:
default:
return -EINVAL;
}
mtk_venc_lock(ctx);
mtk_vcodec_enc_clock_on(&ctx->dev->pm);
ret = ctx->enc_if->init(ctx, (unsigned long *)&ctx->drv_handle);
mtk_vcodec_enc_clock_off(&ctx->dev->pm);
mtk_venc_unlock(ctx);
return ret;
}
int venc_if_set_param(struct mtk_vcodec_ctx *ctx,
enum venc_set_param_type type, struct venc_enc_param *in)
{
int ret = 0;
mtk_venc_lock(ctx);
mtk_vcodec_enc_clock_on(&ctx->dev->pm);
ret = ctx->enc_if->set_param(ctx->drv_handle, type, in);
mtk_vcodec_enc_clock_off(&ctx->dev->pm);
mtk_venc_unlock(ctx);
return ret;
}
int venc_if_encode(struct mtk_vcodec_ctx *ctx,
enum venc_start_opt opt, struct venc_frm_buf *frm_buf,
struct mtk_vcodec_mem *bs_buf,
struct venc_done_result *result)
{
int ret = 0;
unsigned long flags;
mtk_venc_lock(ctx);
spin_lock_irqsave(&ctx->dev->irqlock, flags);
ctx->dev->curr_ctx = ctx;
spin_unlock_irqrestore(&ctx->dev->irqlock, flags);
mtk_vcodec_enc_clock_on(&ctx->dev->pm);
ret = ctx->enc_if->encode(ctx->drv_handle, opt, frm_buf,
bs_buf, result);
mtk_vcodec_enc_clock_off(&ctx->dev->pm);
spin_lock_irqsave(&ctx->dev->irqlock, flags);
ctx->dev->curr_ctx = NULL;
spin_unlock_irqrestore(&ctx->dev->irqlock, flags);
mtk_venc_unlock(ctx);
return ret;
}
int venc_if_deinit(struct mtk_vcodec_ctx *ctx)
{
int ret = 0;
if (ctx->drv_handle == 0)
return 0;
mtk_venc_lock(ctx);
mtk_vcodec_enc_clock_on(&ctx->dev->pm);
ret = ctx->enc_if->deinit(ctx->drv_handle);
mtk_vcodec_enc_clock_off(&ctx->dev->pm);
mtk_venc_unlock(ctx);
ctx->drv_handle = 0;
return ret;
}

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drivers/media/platform/mtk-vcodec/venc_drv_if.h Normal file
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/*
* Copyright (c) 2016 MediaTek Inc.
* Author: Daniel Hsiao <daniel.hsiao@mediatek.com>
* Jungchang Tsao <jungchang.tsao@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 _VENC_DRV_IF_H_
#define _VENC_DRV_IF_H_
#include "mtk_vcodec_drv.h"
#include "mtk_vcodec_util.h"
/*
* enum venc_yuv_fmt - The type of input yuv format
* (VPU related: If you change the order, you must also update the VPU codes.)
* @VENC_YUV_FORMAT_I420: I420 YUV format
* @VENC_YUV_FORMAT_YV12: YV12 YUV format
* @VENC_YUV_FORMAT_NV12: NV12 YUV format
* @VENC_YUV_FORMAT_NV21: NV21 YUV format
*/
enum venc_yuv_fmt {
VENC_YUV_FORMAT_I420 = 3,
VENC_YUV_FORMAT_YV12 = 5,
VENC_YUV_FORMAT_NV12 = 6,
VENC_YUV_FORMAT_NV21 = 7,
};
/*
* enum venc_start_opt - encode frame option used in venc_if_encode()
* @VENC_START_OPT_ENCODE_SEQUENCE_HEADER: encode SPS/PPS for H264
* @VENC_START_OPT_ENCODE_FRAME: encode normal frame
*/
enum venc_start_opt {
VENC_START_OPT_ENCODE_SEQUENCE_HEADER,
VENC_START_OPT_ENCODE_FRAME,
};
/*
* enum venc_set_param_type - The type of set parameter used in
* venc_if_set_param()
* (VPU related: If you change the order, you must also update the VPU codes.)
* @VENC_SET_PARAM_ENC: set encoder parameters
* @VENC_SET_PARAM_FORCE_INTRA: force an intra frame
* @VENC_SET_PARAM_ADJUST_BITRATE: adjust bitrate (in bps)
* @VENC_SET_PARAM_ADJUST_FRAMERATE: set frame rate
* @VENC_SET_PARAM_GOP_SIZE: set IDR interval
* @VENC_SET_PARAM_INTRA_PERIOD: set I frame interval
* @VENC_SET_PARAM_SKIP_FRAME: set H264 skip one frame
* @VENC_SET_PARAM_PREPEND_HEADER: set H264 prepend SPS/PPS before IDR
* @VENC_SET_PARAM_TS_MODE: set VP8 temporal scalability mode
*/
enum venc_set_param_type {
VENC_SET_PARAM_ENC,
VENC_SET_PARAM_FORCE_INTRA,
VENC_SET_PARAM_ADJUST_BITRATE,
VENC_SET_PARAM_ADJUST_FRAMERATE,
VENC_SET_PARAM_GOP_SIZE,
VENC_SET_PARAM_INTRA_PERIOD,
VENC_SET_PARAM_SKIP_FRAME,
VENC_SET_PARAM_PREPEND_HEADER,
VENC_SET_PARAM_TS_MODE,
};
/*
* struct venc_enc_prm - encoder settings for VENC_SET_PARAM_ENC used in
* venc_if_set_param()
* @input_fourcc: input yuv format
* @h264_profile: V4L2 defined H.264 profile
* @h264_level: V4L2 defined H.264 level
* @width: image width
* @height: image height
* @buf_width: buffer width
* @buf_height: buffer height
* @frm_rate: frame rate in fps
* @intra_period: intra frame period
* @bitrate: target bitrate in bps
* @gop_size: group of picture size
*/
struct venc_enc_param {
enum venc_yuv_fmt input_yuv_fmt;
unsigned int h264_profile;
unsigned int h264_level;
unsigned int width;
unsigned int height;
unsigned int buf_width;
unsigned int buf_height;
unsigned int frm_rate;
unsigned int intra_period;
unsigned int bitrate;
unsigned int gop_size;
};
/*
* struct venc_frm_buf - frame buffer information used in venc_if_encode()
* @fb_addr: plane frame buffer addresses
*/
struct venc_frm_buf {
struct mtk_vcodec_mem fb_addr[MTK_VCODEC_MAX_PLANES];
};
/*
* struct venc_done_result - This is return information used in venc_if_encode()
* @bs_size: output bitstream size
* @is_key_frm: output is key frame or not
*/
struct venc_done_result {
unsigned int bs_size;
bool is_key_frm;
};
/*
* venc_if_init - Create the driver handle
* @ctx: device context
* @fourcc: encoder input format
* Return: 0 if creating handle successfully, otherwise it is failed.
*/
int venc_if_init(struct mtk_vcodec_ctx *ctx, unsigned int fourcc);
/*
* venc_if_deinit - Release the driver handle
* @ctx: device context
* Return: 0 if releasing handle successfully, otherwise it is failed.
*/
int venc_if_deinit(struct mtk_vcodec_ctx *ctx);
/*
* venc_if_set_param - Set parameter to driver
* @ctx: device context
* @type: parameter type
* @in: input parameter
* Return: 0 if setting param successfully, otherwise it is failed.
*/
int venc_if_set_param(struct mtk_vcodec_ctx *ctx,
enum venc_set_param_type type,
struct venc_enc_param *in);
/*
* venc_if_encode - Encode one frame
* @ctx: device context
* @opt: encode frame option
* @frm_buf: input frame buffer information
* @bs_buf: output bitstream buffer infomraiton
* @result: encode result
* Return: 0 if encoding frame successfully, otherwise it is failed.
*/
int venc_if_encode(struct mtk_vcodec_ctx *ctx,
enum venc_start_opt opt,
struct venc_frm_buf *frm_buf,
struct mtk_vcodec_mem *bs_buf,
struct venc_done_result *result);
#endif /* _VENC_DRV_IF_H_ */

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/*
* Copyright (c) 2016 MediaTek Inc.
* Author: Jungchang Tsao <jungchang.tsao@mediatek.com>
* Daniel Hsiao <daniel.hsiao@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 _VENC_IPI_MSG_H_
#define _VENC_IPI_MSG_H_
#define AP_IPIMSG_VENC_BASE 0xC000
#define VPU_IPIMSG_VENC_BASE 0xD000
/**
* enum venc_ipi_msg_id - message id between AP and VPU
* (ipi stands for inter-processor interrupt)
* @AP_IPIMSG_ENC_XXX: AP to VPU cmd message id
* @VPU_IPIMSG_ENC_XXX_DONE: VPU ack AP cmd message id
*/
enum venc_ipi_msg_id {
AP_IPIMSG_ENC_INIT = AP_IPIMSG_VENC_BASE,
AP_IPIMSG_ENC_SET_PARAM,
AP_IPIMSG_ENC_ENCODE,
AP_IPIMSG_ENC_DEINIT,
VPU_IPIMSG_ENC_INIT_DONE = VPU_IPIMSG_VENC_BASE,
VPU_IPIMSG_ENC_SET_PARAM_DONE,
VPU_IPIMSG_ENC_ENCODE_DONE,
VPU_IPIMSG_ENC_DEINIT_DONE,
};
/**
* struct venc_ap_ipi_msg_init - AP to VPU init cmd structure
* @msg_id: message id (AP_IPIMSG_XXX_ENC_INIT)
* @reserved: reserved for future use. vpu is running in 32bit. Without
* this reserved field, if kernel run in 64bit. this struct size
* will be different between kernel and vpu
* @venc_inst: AP encoder instance
* (struct venc_vp8_inst/venc_h264_inst *)
*/
struct venc_ap_ipi_msg_init {
uint32_t msg_id;
uint32_t reserved;
uint64_t venc_inst;
};
/**
* struct venc_ap_ipi_msg_set_param - AP to VPU set_param cmd structure
* @msg_id: message id (AP_IPIMSG_XXX_ENC_SET_PARAM)
* @vpu_inst_addr: VPU encoder instance addr
* (struct venc_vp8_vsi/venc_h264_vsi *)
* @param_id: parameter id (venc_set_param_type)
* @data_item: number of items in the data array
* @data[8]: data array to store the set parameters
*/
struct venc_ap_ipi_msg_set_param {
uint32_t msg_id;
uint32_t vpu_inst_addr;
uint32_t param_id;
uint32_t data_item;
uint32_t data[8];
};
/**
* struct venc_ap_ipi_msg_enc - AP to VPU enc cmd structure
* @msg_id: message id (AP_IPIMSG_XXX_ENC_ENCODE)
* @vpu_inst_addr: VPU encoder instance addr
* (struct venc_vp8_vsi/venc_h264_vsi *)
* @bs_mode: bitstream mode for h264
* (H264_BS_MODE_SPS/H264_BS_MODE_PPS/H264_BS_MODE_FRAME)
* @input_addr: pointer to input image buffer plane
* @bs_addr: pointer to output bit stream buffer
* @bs_size: bit stream buffer size
*/
struct venc_ap_ipi_msg_enc {
uint32_t msg_id;
uint32_t vpu_inst_addr;
uint32_t bs_mode;
uint32_t input_addr[3];
uint32_t bs_addr;
uint32_t bs_size;
};
/**
* struct venc_ap_ipi_msg_deinit - AP to VPU deinit cmd structure
* @msg_id: message id (AP_IPIMSG_XXX_ENC_DEINIT)
* @vpu_inst_addr: VPU encoder instance addr
* (struct venc_vp8_vsi/venc_h264_vsi *)
*/
struct venc_ap_ipi_msg_deinit {
uint32_t msg_id;
uint32_t vpu_inst_addr;
};
/**
* enum venc_ipi_msg_status - VPU ack AP cmd status
*/
enum venc_ipi_msg_status {
VENC_IPI_MSG_STATUS_OK,
VENC_IPI_MSG_STATUS_FAIL,
};
/**
* struct venc_vpu_ipi_msg_common - VPU ack AP cmd common structure
* @msg_id: message id (VPU_IPIMSG_XXX_DONE)
* @status: cmd status (venc_ipi_msg_status)
* @venc_inst: AP encoder instance (struct venc_vp8_inst/venc_h264_inst *)
*/
struct venc_vpu_ipi_msg_common {
uint32_t msg_id;
uint32_t status;
uint64_t venc_inst;
};
/**
* struct venc_vpu_ipi_msg_init - VPU ack AP init cmd structure
* @msg_id: message id (VPU_IPIMSG_XXX_ENC_SET_PARAM_DONE)
* @status: cmd status (venc_ipi_msg_status)
* @venc_inst: AP encoder instance (struct venc_vp8_inst/venc_h264_inst *)
* @vpu_inst_addr: VPU encoder instance addr
* (struct venc_vp8_vsi/venc_h264_vsi *)
* @reserved: reserved for future use. vpu is running in 32bit. Without
* this reserved field, if kernel run in 64bit. this struct size
* will be different between kernel and vpu
*/
struct venc_vpu_ipi_msg_init {
uint32_t msg_id;
uint32_t status;
uint64_t venc_inst;
uint32_t vpu_inst_addr;
uint32_t reserved;
};
/**
* struct venc_vpu_ipi_msg_set_param - VPU ack AP set_param cmd structure
* @msg_id: message id (VPU_IPIMSG_XXX_ENC_SET_PARAM_DONE)
* @status: cmd status (venc_ipi_msg_status)
* @venc_inst: AP encoder instance (struct venc_vp8_inst/venc_h264_inst *)
* @param_id: parameter id (venc_set_param_type)
* @data_item: number of items in the data array
* @data[6]: data array to store the return result
*/
struct venc_vpu_ipi_msg_set_param {
uint32_t msg_id;
uint32_t status;
uint64_t venc_inst;
uint32_t param_id;
uint32_t data_item;
uint32_t data[6];
};
/**
* enum venc_ipi_msg_enc_state - Type of encode state
* VEN_IPI_MSG_ENC_STATE_FRAME: one frame being encoded
* VEN_IPI_MSG_ENC_STATE_PART: bit stream buffer full
* VEN_IPI_MSG_ENC_STATE_SKIP: encoded skip frame
* VEN_IPI_MSG_ENC_STATE_ERROR: encounter error
*/
enum venc_ipi_msg_enc_state {
VEN_IPI_MSG_ENC_STATE_FRAME,
VEN_IPI_MSG_ENC_STATE_PART,
VEN_IPI_MSG_ENC_STATE_SKIP,
VEN_IPI_MSG_ENC_STATE_ERROR,
};
/**
* struct venc_vpu_ipi_msg_enc - VPU ack AP enc cmd structure
* @msg_id: message id (VPU_IPIMSG_XXX_ENC_ENCODE_DONE)
* @status: cmd status (venc_ipi_msg_status)
* @venc_inst: AP encoder instance (struct venc_vp8_inst/venc_h264_inst *)
* @state: encode state (venc_ipi_msg_enc_state)
* @is_key_frm: whether the encoded frame is key frame
* @bs_size: encoded bitstream size
* @reserved: reserved for future use. vpu is running in 32bit. Without
* this reserved field, if kernel run in 64bit. this struct size
* will be different between kernel and vpu
*/
struct venc_vpu_ipi_msg_enc {
uint32_t msg_id;
uint32_t status;
uint64_t venc_inst;
uint32_t state;
uint32_t is_key_frm;
uint32_t bs_size;
uint32_t reserved;
};
/**
* struct venc_vpu_ipi_msg_deinit - VPU ack AP deinit cmd structure
* @msg_id: message id (VPU_IPIMSG_XXX_ENC_DEINIT_DONE)
* @status: cmd status (venc_ipi_msg_status)
* @venc_inst: AP encoder instance (struct venc_vp8_inst/venc_h264_inst *)
*/
struct venc_vpu_ipi_msg_deinit {
uint32_t msg_id;
uint32_t status;
uint64_t venc_inst;
};
#endif /* _VENC_IPI_MSG_H_ */