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linux-hardened/drivers/media/platform/coda.c
Philipp Zabel b96904e50a [media] coda: per-product list of codecs instead of list of formats 
This patch adds a list of supported codecs per device type which is used to
determine the allowed pixel formats and maximum frame sizes depending on the
possible codecs. It allows frame sizes larger than 720 x 576 on CODA7 and adds
support for the YVU420 (planar YUV 4:2:0 with switched Cb and Cr) format.
Other uncompressed formats that could be added in the future are the chroma
interleaved NV12 and NV21 formats and the multiplanar variants YUV420M,
YVU420M, NV12M, and NV21M.
Further, rawstreamon is renamed to streamon_out and compstreamon is renamed
to streamon_cap in preparation for decoding support. The maximum encoded
frame buffer size is increased to 1 MiB.
Instead of tracking inst_type and codec across S_FMT calls, set the codec
and inst_type in start_streaming.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-06-08 19:43:50 -03:00

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/*
* Coda multi-standard codec IP
*
* Copyright (C) 2012 Vista Silicon S.L.
* Javier Martin, <javier.martin@vista-silicon.com>
* Xavier Duret
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/firmware.h>
#include <linux/genalloc.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/irq.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/videodev2.h>
#include <linux/of.h>
#include <linux/platform_data/coda.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-device.h>
#include <media/v4l2-ioctl.h>
#include <media/v4l2-mem2mem.h>
#include <media/videobuf2-core.h>
#include <media/videobuf2-dma-contig.h>
#include "coda.h"
#define CODA_NAME "coda"
#define CODA_MAX_INSTANCES 4
#define CODA_FMO_BUF_SIZE 32
#define CODADX6_WORK_BUF_SIZE (288 * 1024 + CODA_FMO_BUF_SIZE * 8 * 1024)
#define CODA7_WORK_BUF_SIZE (512 * 1024 + CODA_FMO_BUF_SIZE * 8 * 1024)
#define CODA_PARA_BUF_SIZE (10 * 1024)
#define CODA_ISRAM_SIZE (2048 * 2)
#define CODADX6_IRAM_SIZE 0xb000
#define CODA7_IRAM_SIZE 0x14000 /* 81920 bytes */
#define CODA_MAX_FRAMEBUFFERS 2
#define MAX_W 8192
#define MAX_H 8192
#define CODA_MAX_FRAME_SIZE 0x100000
#define FMO_SLICE_SAVE_BUF_SIZE (32)
#define CODA_DEFAULT_GAMMA 4096
#define MIN_W 176
#define MIN_H 144
#define S_ALIGN 1 /* multiple of 2 */
#define W_ALIGN 1 /* multiple of 2 */
#define H_ALIGN 1 /* multiple of 2 */
#define fh_to_ctx(__fh) container_of(__fh, struct coda_ctx, fh)
static int coda_debug;
module_param(coda_debug, int, 0644);
MODULE_PARM_DESC(coda_debug, "Debug level (0-1)");
enum {
V4L2_M2M_SRC = 0,
V4L2_M2M_DST = 1,
};
enum coda_inst_type {
CODA_INST_ENCODER,
CODA_INST_DECODER,
};
enum coda_product {
CODA_DX6 = 0xf001,
CODA_7541 = 0xf012,
};
struct coda_fmt {
char *name;
u32 fourcc;
};
struct coda_codec {
u32 mode;
u32 src_fourcc;
u32 dst_fourcc;
u32 max_w;
u32 max_h;
};
struct coda_devtype {
char *firmware;
enum coda_product product;
struct coda_codec *codecs;
unsigned int num_codecs;
size_t workbuf_size;
};
/* Per-queue, driver-specific private data */
struct coda_q_data {
unsigned int width;
unsigned int height;
unsigned int sizeimage;
unsigned int fourcc;
};
struct coda_aux_buf {
void *vaddr;
dma_addr_t paddr;
u32 size;
};
struct coda_dev {
struct v4l2_device v4l2_dev;
struct video_device vfd;
struct platform_device *plat_dev;
const struct coda_devtype *devtype;
void __iomem *regs_base;
struct clk *clk_per;
struct clk *clk_ahb;
struct coda_aux_buf codebuf;
struct coda_aux_buf workbuf;
struct gen_pool *iram_pool;
long unsigned int iram_vaddr;
long unsigned int iram_paddr;
unsigned long iram_size;
spinlock_t irqlock;
struct mutex dev_mutex;
struct v4l2_m2m_dev *m2m_dev;
struct vb2_alloc_ctx *alloc_ctx;
struct list_head instances;
unsigned long instance_mask;
struct delayed_work timeout;
struct completion done;
};
struct coda_params {
u8 rot_mode;
u8 h264_intra_qp;
u8 h264_inter_qp;
u8 mpeg4_intra_qp;
u8 mpeg4_inter_qp;
u8 gop_size;
int codec_mode;
enum v4l2_mpeg_video_multi_slice_mode slice_mode;
u32 framerate;
u16 bitrate;
u32 slice_max_bits;
u32 slice_max_mb;
};
struct coda_ctx {
struct coda_dev *dev;
struct list_head list;
int aborting;
int streamon_out;
int streamon_cap;
u32 isequence;
struct coda_q_data q_data[2];
enum coda_inst_type inst_type;
struct coda_codec *codec;
enum v4l2_colorspace colorspace;
struct coda_params params;
struct v4l2_m2m_ctx *m2m_ctx;
struct v4l2_ctrl_handler ctrls;
struct v4l2_fh fh;
int gopcounter;
char vpu_header[3][64];
int vpu_header_size[3];
struct coda_aux_buf parabuf;
struct coda_aux_buf internal_frames[CODA_MAX_FRAMEBUFFERS];
int num_internal_frames;
int idx;
};
static const u8 coda_filler_nal[14] = { 0x00, 0x00, 0x00, 0x01, 0x0c, 0xff,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x80 };
static const u8 coda_filler_size[8] = { 0, 7, 14, 13, 12, 11, 10, 9 };
static inline void coda_write(struct coda_dev *dev, u32 data, u32 reg)
{
v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
"%s: data=0x%x, reg=0x%x\n", __func__, data, reg);
writel(data, dev->regs_base + reg);
}
static inline unsigned int coda_read(struct coda_dev *dev, u32 reg)
{
u32 data;
data = readl(dev->regs_base + reg);
v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
"%s: data=0x%x, reg=0x%x\n", __func__, data, reg);
return data;
}
static inline unsigned long coda_isbusy(struct coda_dev *dev)
{
return coda_read(dev, CODA_REG_BIT_BUSY);
}
static inline int coda_is_initialized(struct coda_dev *dev)
{
return (coda_read(dev, CODA_REG_BIT_CUR_PC) != 0);
}
static int coda_wait_timeout(struct coda_dev *dev)
{
unsigned long timeout = jiffies + msecs_to_jiffies(1000);
while (coda_isbusy(dev)) {
if (time_after(jiffies, timeout))
return -ETIMEDOUT;
}
return 0;
}
static void coda_command_async(struct coda_ctx *ctx, int cmd)
{
struct coda_dev *dev = ctx->dev;
coda_write(dev, CODA_REG_BIT_BUSY_FLAG, CODA_REG_BIT_BUSY);
coda_write(dev, ctx->idx, CODA_REG_BIT_RUN_INDEX);
coda_write(dev, ctx->params.codec_mode, CODA_REG_BIT_RUN_COD_STD);
coda_write(dev, cmd, CODA_REG_BIT_RUN_COMMAND);
}
static int coda_command_sync(struct coda_ctx *ctx, int cmd)
{
struct coda_dev *dev = ctx->dev;
coda_command_async(ctx, cmd);
return coda_wait_timeout(dev);
}
static struct coda_q_data *get_q_data(struct coda_ctx *ctx,
enum v4l2_buf_type type)
{
switch (type) {
case V4L2_BUF_TYPE_VIDEO_OUTPUT:
return &(ctx->q_data[V4L2_M2M_SRC]);
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
return &(ctx->q_data[V4L2_M2M_DST]);
default:
BUG();
}
return NULL;
}
/*
* Array of all formats supported by any version of Coda:
*/
static struct coda_fmt coda_formats[] = {
{
.name = "YUV 4:2:0 Planar, YCbCr",
.fourcc = V4L2_PIX_FMT_YUV420,
},
{
.name = "YUV 4:2:0 Planar, YCrCb",
.fourcc = V4L2_PIX_FMT_YVU420,
},
{
.name = "H264 Encoded Stream",
.fourcc = V4L2_PIX_FMT_H264,
},
{
.name = "MPEG4 Encoded Stream",
.fourcc = V4L2_PIX_FMT_MPEG4,
},
};
#define CODA_CODEC(mode, src_fourcc, dst_fourcc, max_w, max_h) \
{ mode, src_fourcc, dst_fourcc, max_w, max_h }
/*
* Arrays of codecs supported by each given version of Coda:
* i.MX27 -> codadx6
* i.MX5x -> coda7
* i.MX6 -> coda960
* Use V4L2_PIX_FMT_YUV420 as placeholder for all supported YUV 4:2:0 variants
*/
static struct coda_codec codadx6_codecs[] = {
CODA_CODEC(CODADX6_MODE_ENCODE_H264, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_H264, 720, 576),
CODA_CODEC(CODADX6_MODE_ENCODE_MP4, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_MPEG4, 720, 576),
};
static struct coda_codec coda7_codecs[] = {
CODA_CODEC(CODA7_MODE_ENCODE_H264, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_H264, 1280, 720),
CODA_CODEC(CODA7_MODE_ENCODE_MP4, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_MPEG4, 1280, 720),
};
static bool coda_format_is_yuv(u32 fourcc)
{
switch (fourcc) {
case V4L2_PIX_FMT_YUV420:
case V4L2_PIX_FMT_YVU420:
return true;
default:
return false;
}
}
/*
* Normalize all supported YUV 4:2:0 formats to the value used in the codec
* tables.
*/
static u32 coda_format_normalize_yuv(u32 fourcc)
{
return coda_format_is_yuv(fourcc) ? V4L2_PIX_FMT_YUV420 : fourcc;
}
static struct coda_codec *coda_find_codec(struct coda_dev *dev, int src_fourcc,
int dst_fourcc)
{
struct coda_codec *codecs = dev->devtype->codecs;
int num_codecs = dev->devtype->num_codecs;
int k;
src_fourcc = coda_format_normalize_yuv(src_fourcc);
dst_fourcc = coda_format_normalize_yuv(dst_fourcc);
if (src_fourcc == dst_fourcc)
return NULL;
for (k = 0; k < num_codecs; k++) {
if (codecs[k].src_fourcc == src_fourcc &&
codecs[k].dst_fourcc == dst_fourcc)
break;
}
if (k == num_codecs)
return NULL;
return &codecs[k];
}
/*
* V4L2 ioctl() operations.
*/
static int vidioc_querycap(struct file *file, void *priv,
struct v4l2_capability *cap)
{
strlcpy(cap->driver, CODA_NAME, sizeof(cap->driver));
strlcpy(cap->card, CODA_NAME, sizeof(cap->card));
strlcpy(cap->bus_info, "platform:" CODA_NAME, sizeof(cap->bus_info));
/*
* This is only a mem-to-mem video device. The capture and output
* device capability flags are left only for backward compatibility
* and are scheduled for removal.
*/
cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VIDEO_OUTPUT |
V4L2_CAP_VIDEO_M2M | V4L2_CAP_STREAMING;
cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
return 0;
}
static int enum_fmt(void *priv, struct v4l2_fmtdesc *f,
enum v4l2_buf_type type)
{
struct coda_ctx *ctx = fh_to_ctx(priv);
struct coda_codec *codecs = ctx->dev->devtype->codecs;
struct coda_fmt *formats = coda_formats;
struct coda_fmt *fmt;
int num_codecs = ctx->dev->devtype->num_codecs;
int num_formats = ARRAY_SIZE(coda_formats);
int i, k, num = 0;
for (i = 0; i < num_formats; i++) {
/* Both uncompressed formats are always supported */
if (coda_format_is_yuv(formats[i].fourcc)) {
if (num == f->index)
break;
++num;
continue;
}
/* Compressed formats may be supported, check the codec list */
for (k = 0; k < num_codecs; k++) {
if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE &&
formats[i].fourcc == codecs[k].dst_fourcc)
break;
if (type == V4L2_BUF_TYPE_VIDEO_OUTPUT &&
formats[i].fourcc == codecs[k].src_fourcc)
break;
}
if (k < num_codecs) {
if (num == f->index)
break;
++num;
}
}
if (i < num_formats) {
fmt = &formats[i];
strlcpy(f->description, fmt->name, sizeof(f->description));
f->pixelformat = fmt->fourcc;
return 0;
}
/* Format not found */
return -EINVAL;
}
static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_fmtdesc *f)
{
return enum_fmt(priv, f, V4L2_BUF_TYPE_VIDEO_CAPTURE);
}
static int vidioc_enum_fmt_vid_out(struct file *file, void *priv,
struct v4l2_fmtdesc *f)
{
return enum_fmt(priv, f, V4L2_BUF_TYPE_VIDEO_OUTPUT);
}
static int vidioc_g_fmt(struct file *file, void *priv, struct v4l2_format *f)
{
struct vb2_queue *vq;
struct coda_q_data *q_data;
struct coda_ctx *ctx = fh_to_ctx(priv);
vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type);
if (!vq)
return -EINVAL;
q_data = get_q_data(ctx, f->type);
f->fmt.pix.field = V4L2_FIELD_NONE;
f->fmt.pix.pixelformat = q_data->fourcc;
f->fmt.pix.width = q_data->width;
f->fmt.pix.height = q_data->height;
if (coda_format_is_yuv(f->fmt.pix.pixelformat))
f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 2);
else /* encoded formats h.264/mpeg4 */
f->fmt.pix.bytesperline = 0;
f->fmt.pix.sizeimage = q_data->sizeimage;
f->fmt.pix.colorspace = ctx->colorspace;
return 0;
}
static int vidioc_try_fmt(struct coda_codec *codec, struct v4l2_format *f)
{
unsigned int max_w, max_h;
enum v4l2_field field;
field = f->fmt.pix.field;
if (field == V4L2_FIELD_ANY)
field = V4L2_FIELD_NONE;
else if (V4L2_FIELD_NONE != field)
return -EINVAL;
/* V4L2 specification suggests the driver corrects the format struct
* if any of the dimensions is unsupported */
f->fmt.pix.field = field;
if (codec) {
max_w = codec->max_w;
max_h = codec->max_h;
} else {
max_w = MAX_W;
max_h = MAX_H;
}
v4l_bound_align_image(&f->fmt.pix.width, MIN_W, max_w,
W_ALIGN, &f->fmt.pix.height,
MIN_H, max_h, H_ALIGN, S_ALIGN);
if (coda_format_is_yuv(f->fmt.pix.pixelformat)) {
/* Frame stride must be multiple of 8 */
f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 8);
f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
f->fmt.pix.height * 3 / 2;
} else { /*encoded formats h.264/mpeg4 */
f->fmt.pix.bytesperline = 0;
f->fmt.pix.sizeimage = CODA_MAX_FRAME_SIZE;
}
return 0;
}
static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct coda_ctx *ctx = fh_to_ctx(priv);
struct coda_codec *codec = NULL;
/* Determine codec by the encoded format */
codec = coda_find_codec(ctx->dev, V4L2_PIX_FMT_YUV420,
f->fmt.pix.pixelformat);
f->fmt.pix.colorspace = ctx->colorspace;
return vidioc_try_fmt(codec, f);
}
static int vidioc_try_fmt_vid_out(struct file *file, void *priv,
struct v4l2_format *f)
{
struct coda_ctx *ctx = fh_to_ctx(priv);
struct coda_codec *codec;
/* Determine codec by encoded format, returns NULL if raw or invalid */
codec = coda_find_codec(ctx->dev, f->fmt.pix.pixelformat,
V4L2_PIX_FMT_YUV420);
if (!f->fmt.pix.colorspace)
f->fmt.pix.colorspace = V4L2_COLORSPACE_REC709;
return vidioc_try_fmt(codec, f);
}
static int vidioc_s_fmt(struct coda_ctx *ctx, struct v4l2_format *f)
{
struct coda_q_data *q_data;
struct vb2_queue *vq;
vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type);
if (!vq)
return -EINVAL;
q_data = get_q_data(ctx, f->type);
if (!q_data)
return -EINVAL;
if (vb2_is_busy(vq)) {
v4l2_err(&ctx->dev->v4l2_dev, "%s queue busy\n", __func__);
return -EBUSY;
}
q_data->fourcc = f->fmt.pix.pixelformat;
q_data->width = f->fmt.pix.width;
q_data->height = f->fmt.pix.height;
q_data->sizeimage = f->fmt.pix.sizeimage;
v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
"Setting format for type %d, wxh: %dx%d, fmt: %d\n",
f->type, q_data->width, q_data->height, q_data->fourcc);
return 0;
}
static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct coda_ctx *ctx = fh_to_ctx(priv);
int ret;
ret = vidioc_try_fmt_vid_cap(file, priv, f);
if (ret)
return ret;
return vidioc_s_fmt(ctx, f);
}
static int vidioc_s_fmt_vid_out(struct file *file, void *priv,
struct v4l2_format *f)
{
struct coda_ctx *ctx = fh_to_ctx(priv);
int ret;
ret = vidioc_try_fmt_vid_out(file, priv, f);
if (ret)
return ret;
ret = vidioc_s_fmt(ctx, f);
if (ret)
ctx->colorspace = f->fmt.pix.colorspace;
return ret;
}
static int vidioc_reqbufs(struct file *file, void *priv,
struct v4l2_requestbuffers *reqbufs)
{
struct coda_ctx *ctx = fh_to_ctx(priv);
return v4l2_m2m_reqbufs(file, ctx->m2m_ctx, reqbufs);
}
static int vidioc_querybuf(struct file *file, void *priv,
struct v4l2_buffer *buf)
{
struct coda_ctx *ctx = fh_to_ctx(priv);
return v4l2_m2m_querybuf(file, ctx->m2m_ctx, buf);
}
static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
{
struct coda_ctx *ctx = fh_to_ctx(priv);
return v4l2_m2m_qbuf(file, ctx->m2m_ctx, buf);
}
static int vidioc_expbuf(struct file *file, void *priv,
struct v4l2_exportbuffer *eb)
{
struct coda_ctx *ctx = fh_to_ctx(priv);
return v4l2_m2m_expbuf(file, ctx->m2m_ctx, eb);
}
static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
{
struct coda_ctx *ctx = fh_to_ctx(priv);
return v4l2_m2m_dqbuf(file, ctx->m2m_ctx, buf);
}
static int vidioc_streamon(struct file *file, void *priv,
enum v4l2_buf_type type)
{
struct coda_ctx *ctx = fh_to_ctx(priv);
return v4l2_m2m_streamon(file, ctx->m2m_ctx, type);
}
static int vidioc_streamoff(struct file *file, void *priv,
enum v4l2_buf_type type)
{
struct coda_ctx *ctx = fh_to_ctx(priv);
return v4l2_m2m_streamoff(file, ctx->m2m_ctx, type);
}
static const struct v4l2_ioctl_ops coda_ioctl_ops = {
.vidioc_querycap = vidioc_querycap,
.vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
.vidioc_g_fmt_vid_cap = vidioc_g_fmt,
.vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
.vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
.vidioc_enum_fmt_vid_out = vidioc_enum_fmt_vid_out,
.vidioc_g_fmt_vid_out = vidioc_g_fmt,
.vidioc_try_fmt_vid_out = vidioc_try_fmt_vid_out,
.vidioc_s_fmt_vid_out = vidioc_s_fmt_vid_out,
.vidioc_reqbufs = vidioc_reqbufs,
.vidioc_querybuf = vidioc_querybuf,
.vidioc_qbuf = vidioc_qbuf,
.vidioc_expbuf = vidioc_expbuf,
.vidioc_dqbuf = vidioc_dqbuf,
.vidioc_streamon = vidioc_streamon,
.vidioc_streamoff = vidioc_streamoff,
};
/*
* Mem-to-mem operations.
*/
static void coda_device_run(void *m2m_priv)
{
struct coda_ctx *ctx = m2m_priv;
struct coda_q_data *q_data_src, *q_data_dst;
struct vb2_buffer *src_buf, *dst_buf;
struct coda_dev *dev = ctx->dev;
int force_ipicture;
int quant_param = 0;
u32 picture_y, picture_cb, picture_cr;
u32 pic_stream_buffer_addr, pic_stream_buffer_size;
u32 dst_fourcc;
src_buf = v4l2_m2m_next_src_buf(ctx->m2m_ctx);
dst_buf = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
dst_fourcc = q_data_dst->fourcc;
src_buf->v4l2_buf.sequence = ctx->isequence;
dst_buf->v4l2_buf.sequence = ctx->isequence;
ctx->isequence++;
/*
* Workaround coda firmware BUG that only marks the first
* frame as IDR. This is a problem for some decoders that can't
* recover when a frame is lost.
*/
if (src_buf->v4l2_buf.sequence % ctx->params.gop_size) {
src_buf->v4l2_buf.flags |= V4L2_BUF_FLAG_PFRAME;
src_buf->v4l2_buf.flags &= ~V4L2_BUF_FLAG_KEYFRAME;
} else {
src_buf->v4l2_buf.flags |= V4L2_BUF_FLAG_KEYFRAME;
src_buf->v4l2_buf.flags &= ~V4L2_BUF_FLAG_PFRAME;
}
/*
* Copy headers at the beginning of the first frame for H.264 only.
* In MPEG4 they are already copied by the coda.
*/
if (src_buf->v4l2_buf.sequence == 0) {
pic_stream_buffer_addr =
vb2_dma_contig_plane_dma_addr(dst_buf, 0) +
ctx->vpu_header_size[0] +
ctx->vpu_header_size[1] +
ctx->vpu_header_size[2];
pic_stream_buffer_size = CODA_MAX_FRAME_SIZE -
ctx->vpu_header_size[0] -
ctx->vpu_header_size[1] -
ctx->vpu_header_size[2];
memcpy(vb2_plane_vaddr(dst_buf, 0),
&ctx->vpu_header[0][0], ctx->vpu_header_size[0]);
memcpy(vb2_plane_vaddr(dst_buf, 0) + ctx->vpu_header_size[0],
&ctx->vpu_header[1][0], ctx->vpu_header_size[1]);
memcpy(vb2_plane_vaddr(dst_buf, 0) + ctx->vpu_header_size[0] +
ctx->vpu_header_size[1], &ctx->vpu_header[2][0],
ctx->vpu_header_size[2]);
} else {
pic_stream_buffer_addr =
vb2_dma_contig_plane_dma_addr(dst_buf, 0);
pic_stream_buffer_size = CODA_MAX_FRAME_SIZE;
}
if (src_buf->v4l2_buf.flags & V4L2_BUF_FLAG_KEYFRAME) {
force_ipicture = 1;
switch (dst_fourcc) {
case V4L2_PIX_FMT_H264:
quant_param = ctx->params.h264_intra_qp;
break;
case V4L2_PIX_FMT_MPEG4:
quant_param = ctx->params.mpeg4_intra_qp;
break;
default:
v4l2_warn(&ctx->dev->v4l2_dev,
"cannot set intra qp, fmt not supported\n");
break;
}
} else {
force_ipicture = 0;
switch (dst_fourcc) {
case V4L2_PIX_FMT_H264:
quant_param = ctx->params.h264_inter_qp;
break;
case V4L2_PIX_FMT_MPEG4:
quant_param = ctx->params.mpeg4_inter_qp;
break;
default:
v4l2_warn(&ctx->dev->v4l2_dev,
"cannot set inter qp, fmt not supported\n");
break;
}
}
/* submit */
coda_write(dev, CODA_ROT_MIR_ENABLE | ctx->params.rot_mode, CODA_CMD_ENC_PIC_ROT_MODE);
coda_write(dev, quant_param, CODA_CMD_ENC_PIC_QS);
picture_y = vb2_dma_contig_plane_dma_addr(src_buf, 0);
switch (q_data_src->fourcc) {
case V4L2_PIX_FMT_YVU420:
/* Switch Cb and Cr for YVU420 format */
picture_cr = picture_y + q_data_src->width * q_data_src->height;
picture_cb = picture_cr + q_data_src->width / 2 *
q_data_src->height / 2;
break;
case V4L2_PIX_FMT_YUV420:
default:
picture_cb = picture_y + q_data_src->width * q_data_src->height;
picture_cr = picture_cb + q_data_src->width / 2 *
q_data_src->height / 2;
break;
}
coda_write(dev, picture_y, CODA_CMD_ENC_PIC_SRC_ADDR_Y);
coda_write(dev, picture_cb, CODA_CMD_ENC_PIC_SRC_ADDR_CB);
coda_write(dev, picture_cr, CODA_CMD_ENC_PIC_SRC_ADDR_CR);
coda_write(dev, force_ipicture << 1 & 0x2,
CODA_CMD_ENC_PIC_OPTION);
coda_write(dev, pic_stream_buffer_addr, CODA_CMD_ENC_PIC_BB_START);
coda_write(dev, pic_stream_buffer_size / 1024,
CODA_CMD_ENC_PIC_BB_SIZE);
if (dev->devtype->product == CODA_7541) {
coda_write(dev, CODA7_USE_BIT_ENABLE | CODA7_USE_HOST_BIT_ENABLE |
CODA7_USE_ME_ENABLE | CODA7_USE_HOST_ME_ENABLE,
CODA7_REG_BIT_AXI_SRAM_USE);
}
/* 1 second timeout in case CODA locks up */
schedule_delayed_work(&dev->timeout, HZ);
INIT_COMPLETION(dev->done);
coda_command_async(ctx, CODA_COMMAND_PIC_RUN);
}
static int coda_job_ready(void *m2m_priv)
{
struct coda_ctx *ctx = m2m_priv;
/*
* For both 'P' and 'key' frame cases 1 picture
* and 1 frame are needed.
*/
if (!v4l2_m2m_num_src_bufs_ready(ctx->m2m_ctx) ||
!v4l2_m2m_num_dst_bufs_ready(ctx->m2m_ctx)) {
v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
"not ready: not enough video buffers.\n");
return 0;
}
v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
"job ready\n");
return 1;
}
static void coda_job_abort(void *priv)
{
struct coda_ctx *ctx = priv;
struct coda_dev *dev = ctx->dev;
ctx->aborting = 1;
v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
"Aborting task\n");
v4l2_m2m_job_finish(dev->m2m_dev, ctx->m2m_ctx);
}
static void coda_lock(void *m2m_priv)
{
struct coda_ctx *ctx = m2m_priv;
struct coda_dev *pcdev = ctx->dev;
mutex_lock(&pcdev->dev_mutex);
}
static void coda_unlock(void *m2m_priv)
{
struct coda_ctx *ctx = m2m_priv;
struct coda_dev *pcdev = ctx->dev;
mutex_unlock(&pcdev->dev_mutex);
}
static struct v4l2_m2m_ops coda_m2m_ops = {
.device_run = coda_device_run,
.job_ready = coda_job_ready,
.job_abort = coda_job_abort,
.lock = coda_lock,
.unlock = coda_unlock,
};
static void set_default_params(struct coda_ctx *ctx)
{
int max_w;
int max_h;
ctx->codec = &ctx->dev->devtype->codecs[0];
max_w = ctx->codec->max_w;
max_h = ctx->codec->max_h;
ctx->params.codec_mode = CODA_MODE_INVALID;
ctx->colorspace = V4L2_COLORSPACE_REC709;
ctx->params.framerate = 30;
ctx->aborting = 0;
/* Default formats for output and input queues */
ctx->q_data[V4L2_M2M_SRC].fourcc = ctx->codec->src_fourcc;
ctx->q_data[V4L2_M2M_DST].fourcc = ctx->codec->dst_fourcc;
ctx->q_data[V4L2_M2M_SRC].width = max_w;
ctx->q_data[V4L2_M2M_SRC].height = max_h;
ctx->q_data[V4L2_M2M_SRC].sizeimage = (max_w * max_h * 3) / 2;
ctx->q_data[V4L2_M2M_DST].width = max_w;
ctx->q_data[V4L2_M2M_DST].height = max_h;
ctx->q_data[V4L2_M2M_DST].sizeimage = CODA_MAX_FRAME_SIZE;
}
/*
* Queue operations
*/
static int coda_queue_setup(struct vb2_queue *vq,
const struct v4l2_format *fmt,
unsigned int *nbuffers, unsigned int *nplanes,
unsigned int sizes[], void *alloc_ctxs[])
{
struct coda_ctx *ctx = vb2_get_drv_priv(vq);
struct coda_q_data *q_data;
unsigned int size;
q_data = get_q_data(ctx, vq->type);
size = q_data->sizeimage;
*nplanes = 1;
sizes[0] = size;
alloc_ctxs[0] = ctx->dev->alloc_ctx;
v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
"get %d buffer(s) of size %d each.\n", *nbuffers, size);
return 0;
}
static int coda_buf_prepare(struct vb2_buffer *vb)
{
struct coda_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
struct coda_q_data *q_data;
q_data = get_q_data(ctx, vb->vb2_queue->type);
if (vb2_plane_size(vb, 0) < q_data->sizeimage) {
v4l2_warn(&ctx->dev->v4l2_dev,
"%s data will not fit into plane (%lu < %lu)\n",
__func__, vb2_plane_size(vb, 0),
(long)q_data->sizeimage);
return -EINVAL;
}
return 0;
}
static void coda_buf_queue(struct vb2_buffer *vb)
{
struct coda_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
v4l2_m2m_buf_queue(ctx->m2m_ctx, vb);
}
static void coda_wait_prepare(struct vb2_queue *q)
{
struct coda_ctx *ctx = vb2_get_drv_priv(q);
coda_unlock(ctx);
}
static void coda_wait_finish(struct vb2_queue *q)
{
struct coda_ctx *ctx = vb2_get_drv_priv(q);
coda_lock(ctx);
}
static void coda_free_framebuffers(struct coda_ctx *ctx)
{
int i;
for (i = 0; i < CODA_MAX_FRAMEBUFFERS; i++) {
if (ctx->internal_frames[i].vaddr) {
dma_free_coherent(&ctx->dev->plat_dev->dev,
ctx->internal_frames[i].size,
ctx->internal_frames[i].vaddr,
ctx->internal_frames[i].paddr);
ctx->internal_frames[i].vaddr = NULL;
}
}
}
static void coda_parabuf_write(struct coda_ctx *ctx, int index, u32 value)
{
struct coda_dev *dev = ctx->dev;
u32 *p = ctx->parabuf.vaddr;
if (dev->devtype->product == CODA_DX6)
p[index] = value;
else
p[index ^ 1] = value;
}
static int coda_alloc_framebuffers(struct coda_ctx *ctx, struct coda_q_data *q_data, u32 fourcc)
{
struct coda_dev *dev = ctx->dev;
int height = q_data->height;
dma_addr_t paddr;
int ysize;
int i;
ysize = round_up(q_data->width, 8) * height;
/* Allocate frame buffers */
ctx->num_internal_frames = CODA_MAX_FRAMEBUFFERS;
for (i = 0; i < ctx->num_internal_frames; i++) {
ctx->internal_frames[i].size = q_data->sizeimage;
if (fourcc == V4L2_PIX_FMT_H264 && dev->devtype->product != CODA_DX6)
ctx->internal_frames[i].size += ysize/4;
ctx->internal_frames[i].vaddr = dma_alloc_coherent(
&dev->plat_dev->dev, ctx->internal_frames[i].size,
&ctx->internal_frames[i].paddr, GFP_KERNEL);
if (!ctx->internal_frames[i].vaddr) {
coda_free_framebuffers(ctx);
return -ENOMEM;
}
}
/* Register frame buffers in the parameter buffer */
for (i = 0; i < ctx->num_internal_frames; i++) {
paddr = ctx->internal_frames[i].paddr;
coda_parabuf_write(ctx, i * 3 + 0, paddr); /* Y */
coda_parabuf_write(ctx, i * 3 + 1, paddr + ysize); /* Cb */
coda_parabuf_write(ctx, i * 3 + 2, paddr + ysize + ysize/4); /* Cr */
if (dev->devtype->product != CODA_DX6 && fourcc == V4L2_PIX_FMT_H264)
coda_parabuf_write(ctx, 96 + i, ctx->internal_frames[i].paddr + ysize + ysize/4 + ysize/4);
}
return 0;
}
static int coda_h264_padding(int size, char *p)
{
int nal_size;
int diff;
diff = size - (size & ~0x7);
if (diff == 0)
return 0;
nal_size = coda_filler_size[diff];
memcpy(p, coda_filler_nal, nal_size);
/* Add rbsp stop bit and trailing at the end */
*(p + nal_size - 1) = 0x80;
return nal_size;
}
static int coda_start_streaming(struct vb2_queue *q, unsigned int count)
{
struct coda_ctx *ctx = vb2_get_drv_priv(q);
struct v4l2_device *v4l2_dev = &ctx->dev->v4l2_dev;
u32 bitstream_buf, bitstream_size;
struct coda_dev *dev = ctx->dev;
struct coda_q_data *q_data_src, *q_data_dst;
struct vb2_buffer *buf;
u32 dst_fourcc;
u32 value;
int ret;
if (count < 1)
return -EINVAL;
if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
ctx->streamon_out = 1;
else
ctx->streamon_cap = 1;
q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
if (ctx->streamon_out) {
if (coda_format_is_yuv(q_data_src->fourcc))
ctx->inst_type = CODA_INST_ENCODER;
else
ctx->inst_type = CODA_INST_DECODER;
}
if (coda_isbusy(dev))
if (wait_for_completion_interruptible_timeout(&dev->done, HZ) <= 0)
return -EBUSY;
/* Don't start the coda unless both queues are on */
if (!(ctx->streamon_out & ctx->streamon_cap))
return 0;
ctx->gopcounter = ctx->params.gop_size - 1;
buf = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
bitstream_buf = vb2_dma_contig_plane_dma_addr(buf, 0);
q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
bitstream_size = q_data_dst->sizeimage;
dst_fourcc = q_data_dst->fourcc;
ctx->codec = coda_find_codec(ctx->dev, q_data_src->fourcc,
q_data_dst->fourcc);
if (!ctx->codec) {
v4l2_err(v4l2_dev, "couldn't tell instance type.\n");
return -EINVAL;
}
if (!coda_is_initialized(dev)) {
v4l2_err(v4l2_dev, "coda is not initialized.\n");
return -EFAULT;
}
coda_write(dev, ctx->parabuf.paddr, CODA_REG_BIT_PARA_BUF_ADDR);
coda_write(dev, bitstream_buf, CODA_REG_BIT_RD_PTR(ctx->idx));
coda_write(dev, bitstream_buf, CODA_REG_BIT_WR_PTR(ctx->idx));
switch (dev->devtype->product) {
case CODA_DX6:
coda_write(dev, CODADX6_STREAM_BUF_DYNALLOC_EN |
CODADX6_STREAM_BUF_PIC_RESET, CODA_REG_BIT_STREAM_CTRL);
break;
default:
coda_write(dev, CODA7_STREAM_BUF_DYNALLOC_EN |
CODA7_STREAM_BUF_PIC_RESET, CODA_REG_BIT_STREAM_CTRL);
}
if (dev->devtype->product == CODA_DX6) {
/* Configure the coda */
coda_write(dev, dev->iram_paddr, CODADX6_REG_BIT_SEARCH_RAM_BASE_ADDR);
}
/* Could set rotation here if needed */
switch (dev->devtype->product) {
case CODA_DX6:
value = (q_data_src->width & CODADX6_PICWIDTH_MASK) << CODADX6_PICWIDTH_OFFSET;
value |= (q_data_src->height & CODADX6_PICHEIGHT_MASK) << CODA_PICHEIGHT_OFFSET;
break;
default:
value = (q_data_src->width & CODA7_PICWIDTH_MASK) << CODA7_PICWIDTH_OFFSET;
value |= (q_data_src->height & CODA7_PICHEIGHT_MASK) << CODA_PICHEIGHT_OFFSET;
}
coda_write(dev, value, CODA_CMD_ENC_SEQ_SRC_SIZE);
coda_write(dev, ctx->params.framerate,
CODA_CMD_ENC_SEQ_SRC_F_RATE);
ctx->params.codec_mode = ctx->codec->mode;
switch (dst_fourcc) {
case V4L2_PIX_FMT_MPEG4:
coda_write(dev, CODA_STD_MPEG4, CODA_CMD_ENC_SEQ_COD_STD);
coda_write(dev, 0, CODA_CMD_ENC_SEQ_MP4_PARA);
break;
case V4L2_PIX_FMT_H264:
coda_write(dev, CODA_STD_H264, CODA_CMD_ENC_SEQ_COD_STD);
coda_write(dev, 0, CODA_CMD_ENC_SEQ_264_PARA);
break;
default:
v4l2_err(v4l2_dev,
"dst format (0x%08x) invalid.\n", dst_fourcc);
return -EINVAL;
}
switch (ctx->params.slice_mode) {
case V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_SINGLE:
value = 0;
break;
case V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_MB:
value = (ctx->params.slice_max_mb & CODA_SLICING_SIZE_MASK) << CODA_SLICING_SIZE_OFFSET;
value |= (1 & CODA_SLICING_UNIT_MASK) << CODA_SLICING_UNIT_OFFSET;
value |= 1 & CODA_SLICING_MODE_MASK;
break;
case V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_BYTES:
value = (ctx->params.slice_max_bits & CODA_SLICING_SIZE_MASK) << CODA_SLICING_SIZE_OFFSET;
value |= (0 & CODA_SLICING_UNIT_MASK) << CODA_SLICING_UNIT_OFFSET;
value |= 1 & CODA_SLICING_MODE_MASK;
break;
}
coda_write(dev, value, CODA_CMD_ENC_SEQ_SLICE_MODE);
value = ctx->params.gop_size & CODA_GOP_SIZE_MASK;
coda_write(dev, value, CODA_CMD_ENC_SEQ_GOP_SIZE);
if (ctx->params.bitrate) {
/* Rate control enabled */
value = (ctx->params.bitrate & CODA_RATECONTROL_BITRATE_MASK) << CODA_RATECONTROL_BITRATE_OFFSET;
value |= 1 & CODA_RATECONTROL_ENABLE_MASK;
} else {
value = 0;
}
coda_write(dev, value, CODA_CMD_ENC_SEQ_RC_PARA);
coda_write(dev, 0, CODA_CMD_ENC_SEQ_RC_BUF_SIZE);
coda_write(dev, 0, CODA_CMD_ENC_SEQ_INTRA_REFRESH);
coda_write(dev, bitstream_buf, CODA_CMD_ENC_SEQ_BB_START);
coda_write(dev, bitstream_size / 1024, CODA_CMD_ENC_SEQ_BB_SIZE);
/* set default gamma */
value = (CODA_DEFAULT_GAMMA & CODA_GAMMA_MASK) << CODA_GAMMA_OFFSET;
coda_write(dev, value, CODA_CMD_ENC_SEQ_RC_GAMMA);
if (CODA_DEFAULT_GAMMA > 0) {
if (dev->devtype->product == CODA_DX6)
value = 1 << CODADX6_OPTION_GAMMA_OFFSET;
else
value = 1 << CODA7_OPTION_GAMMA_OFFSET;
} else {
value = 0;
}
coda_write(dev, value, CODA_CMD_ENC_SEQ_OPTION);
if (dst_fourcc == V4L2_PIX_FMT_H264) {
value = (FMO_SLICE_SAVE_BUF_SIZE << 7);
value |= (0 & CODA_FMOPARAM_TYPE_MASK) << CODA_FMOPARAM_TYPE_OFFSET;
value |= 0 & CODA_FMOPARAM_SLICENUM_MASK;
if (dev->devtype->product == CODA_DX6) {
coda_write(dev, value, CODADX6_CMD_ENC_SEQ_FMO);
} else {
coda_write(dev, dev->iram_paddr, CODA7_CMD_ENC_SEQ_SEARCH_BASE);
coda_write(dev, 48 * 1024, CODA7_CMD_ENC_SEQ_SEARCH_SIZE);
}
}
if (coda_command_sync(ctx, CODA_COMMAND_SEQ_INIT)) {
v4l2_err(v4l2_dev, "CODA_COMMAND_SEQ_INIT timeout\n");
return -ETIMEDOUT;
}
if (coda_read(dev, CODA_RET_ENC_SEQ_SUCCESS) == 0)
return -EFAULT;
ret = coda_alloc_framebuffers(ctx, q_data_src, dst_fourcc);
if (ret < 0)
return ret;
coda_write(dev, ctx->num_internal_frames, CODA_CMD_SET_FRAME_BUF_NUM);
coda_write(dev, round_up(q_data_src->width, 8), CODA_CMD_SET_FRAME_BUF_STRIDE);
if (dev->devtype->product != CODA_DX6) {
coda_write(dev, round_up(q_data_src->width, 8), CODA7_CMD_SET_FRAME_SOURCE_BUF_STRIDE);
coda_write(dev, dev->iram_paddr + 48 * 1024, CODA7_CMD_SET_FRAME_AXI_DBKY_ADDR);
coda_write(dev, dev->iram_paddr + 53 * 1024, CODA7_CMD_SET_FRAME_AXI_DBKC_ADDR);
coda_write(dev, dev->iram_paddr + 58 * 1024, CODA7_CMD_SET_FRAME_AXI_BIT_ADDR);
coda_write(dev, dev->iram_paddr + 68 * 1024, CODA7_CMD_SET_FRAME_AXI_IPACDC_ADDR);
coda_write(dev, 0x0, CODA7_CMD_SET_FRAME_AXI_OVL_ADDR);
}
if (coda_command_sync(ctx, CODA_COMMAND_SET_FRAME_BUF)) {
v4l2_err(v4l2_dev, "CODA_COMMAND_SET_FRAME_BUF timeout\n");
return -ETIMEDOUT;
}
/* Save stream headers */
buf = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
switch (dst_fourcc) {
case V4L2_PIX_FMT_H264:
/*
* Get SPS in the first frame and copy it to an
* intermediate buffer.
*/
coda_write(dev, vb2_dma_contig_plane_dma_addr(buf, 0), CODA_CMD_ENC_HEADER_BB_START);
coda_write(dev, bitstream_size, CODA_CMD_ENC_HEADER_BB_SIZE);
coda_write(dev, CODA_HEADER_H264_SPS, CODA_CMD_ENC_HEADER_CODE);
if (coda_command_sync(ctx, CODA_COMMAND_ENCODE_HEADER)) {
v4l2_err(v4l2_dev, "CODA_COMMAND_ENCODE_HEADER timeout\n");
return -ETIMEDOUT;
}
ctx->vpu_header_size[0] = coda_read(dev, CODA_REG_BIT_WR_PTR(ctx->idx)) -
coda_read(dev, CODA_CMD_ENC_HEADER_BB_START);
memcpy(&ctx->vpu_header[0][0], vb2_plane_vaddr(buf, 0),
ctx->vpu_header_size[0]);
/*
* Get PPS in the first frame and copy it to an
* intermediate buffer.
*/
coda_write(dev, vb2_dma_contig_plane_dma_addr(buf, 0), CODA_CMD_ENC_HEADER_BB_START);
coda_write(dev, bitstream_size, CODA_CMD_ENC_HEADER_BB_SIZE);
coda_write(dev, CODA_HEADER_H264_PPS, CODA_CMD_ENC_HEADER_CODE);
if (coda_command_sync(ctx, CODA_COMMAND_ENCODE_HEADER)) {
v4l2_err(v4l2_dev, "CODA_COMMAND_ENCODE_HEADER timeout\n");
return -ETIMEDOUT;
}
ctx->vpu_header_size[1] = coda_read(dev, CODA_REG_BIT_WR_PTR(ctx->idx)) -
coda_read(dev, CODA_CMD_ENC_HEADER_BB_START);
memcpy(&ctx->vpu_header[1][0], vb2_plane_vaddr(buf, 0),
ctx->vpu_header_size[1]);
/*
* Length of H.264 headers is variable and thus it might not be
* aligned for the coda to append the encoded frame. In that is
* the case a filler NAL must be added to header 2.
*/
ctx->vpu_header_size[2] = coda_h264_padding(
(ctx->vpu_header_size[0] +
ctx->vpu_header_size[1]),
ctx->vpu_header[2]);
break;
case V4L2_PIX_FMT_MPEG4:
/*
* Get VOS in the first frame and copy it to an
* intermediate buffer
*/
coda_write(dev, vb2_dma_contig_plane_dma_addr(buf, 0), CODA_CMD_ENC_HEADER_BB_START);
coda_write(dev, bitstream_size, CODA_CMD_ENC_HEADER_BB_SIZE);
coda_write(dev, CODA_HEADER_MP4V_VOS, CODA_CMD_ENC_HEADER_CODE);
if (coda_command_sync(ctx, CODA_COMMAND_ENCODE_HEADER)) {
v4l2_err(v4l2_dev, "CODA_COMMAND_ENCODE_HEADER timeout\n");
return -ETIMEDOUT;
}
ctx->vpu_header_size[0] = coda_read(dev, CODA_REG_BIT_WR_PTR(ctx->idx)) -
coda_read(dev, CODA_CMD_ENC_HEADER_BB_START);
memcpy(&ctx->vpu_header[0][0], vb2_plane_vaddr(buf, 0),
ctx->vpu_header_size[0]);
coda_write(dev, vb2_dma_contig_plane_dma_addr(buf, 0), CODA_CMD_ENC_HEADER_BB_START);
coda_write(dev, bitstream_size, CODA_CMD_ENC_HEADER_BB_SIZE);
coda_write(dev, CODA_HEADER_MP4V_VIS, CODA_CMD_ENC_HEADER_CODE);
if (coda_command_sync(ctx, CODA_COMMAND_ENCODE_HEADER)) {
v4l2_err(v4l2_dev, "CODA_COMMAND_ENCODE_HEADER failed\n");
return -ETIMEDOUT;
}
ctx->vpu_header_size[1] = coda_read(dev, CODA_REG_BIT_WR_PTR(ctx->idx)) -
coda_read(dev, CODA_CMD_ENC_HEADER_BB_START);
memcpy(&ctx->vpu_header[1][0], vb2_plane_vaddr(buf, 0),
ctx->vpu_header_size[1]);
coda_write(dev, vb2_dma_contig_plane_dma_addr(buf, 0), CODA_CMD_ENC_HEADER_BB_START);
coda_write(dev, bitstream_size, CODA_CMD_ENC_HEADER_BB_SIZE);
coda_write(dev, CODA_HEADER_MP4V_VOL, CODA_CMD_ENC_HEADER_CODE);
if (coda_command_sync(ctx, CODA_COMMAND_ENCODE_HEADER)) {
v4l2_err(v4l2_dev, "CODA_COMMAND_ENCODE_HEADER failed\n");
return -ETIMEDOUT;
}
ctx->vpu_header_size[2] = coda_read(dev, CODA_REG_BIT_WR_PTR(ctx->idx)) -
coda_read(dev, CODA_CMD_ENC_HEADER_BB_START);
memcpy(&ctx->vpu_header[2][0], vb2_plane_vaddr(buf, 0),
ctx->vpu_header_size[2]);
break;
default:
/* No more formats need to save headers at the moment */
break;
}
return 0;
}
static int coda_stop_streaming(struct vb2_queue *q)
{
struct coda_ctx *ctx = vb2_get_drv_priv(q);
struct coda_dev *dev = ctx->dev;
if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
"%s: output\n", __func__);
ctx->streamon_out = 0;
} else {
v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
"%s: capture\n", __func__);
ctx->streamon_cap = 0;
}
/* Don't stop the coda unless both queues are off */
if (ctx->streamon_out || ctx->streamon_cap)
return 0;
if (coda_isbusy(dev)) {
if (wait_for_completion_interruptible_timeout(&dev->done, HZ) <= 0) {
v4l2_warn(&dev->v4l2_dev,
"%s: timeout, sending SEQ_END anyway\n", __func__);
}
}
cancel_delayed_work(&dev->timeout);
v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
"%s: sent command 'SEQ_END' to coda\n", __func__);
if (coda_command_sync(ctx, CODA_COMMAND_SEQ_END)) {
v4l2_err(&dev->v4l2_dev,
"CODA_COMMAND_SEQ_END failed\n");
return -ETIMEDOUT;
}
coda_free_framebuffers(ctx);
return 0;
}
static struct vb2_ops coda_qops = {
.queue_setup = coda_queue_setup,
.buf_prepare = coda_buf_prepare,
.buf_queue = coda_buf_queue,
.wait_prepare = coda_wait_prepare,
.wait_finish = coda_wait_finish,
.start_streaming = coda_start_streaming,
.stop_streaming = coda_stop_streaming,
};
static int coda_s_ctrl(struct v4l2_ctrl *ctrl)
{
struct coda_ctx *ctx =
container_of(ctrl->handler, struct coda_ctx, ctrls);
v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
"s_ctrl: id = %d, val = %d\n", ctrl->id, ctrl->val);
switch (ctrl->id) {
case V4L2_CID_HFLIP:
if (ctrl->val)
ctx->params.rot_mode |= CODA_MIR_HOR;
else
ctx->params.rot_mode &= ~CODA_MIR_HOR;
break;
case V4L2_CID_VFLIP:
if (ctrl->val)
ctx->params.rot_mode |= CODA_MIR_VER;
else
ctx->params.rot_mode &= ~CODA_MIR_VER;
break;
case V4L2_CID_MPEG_VIDEO_BITRATE:
ctx->params.bitrate = ctrl->val / 1000;
break;
case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
ctx->params.gop_size = ctrl->val;
break;
case V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP:
ctx->params.h264_intra_qp = ctrl->val;
break;
case V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP:
ctx->params.h264_inter_qp = ctrl->val;
break;
case V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP:
ctx->params.mpeg4_intra_qp = ctrl->val;
break;
case V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP:
ctx->params.mpeg4_inter_qp = ctrl->val;
break;
case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE:
ctx->params.slice_mode = ctrl->val;
break;
case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB:
ctx->params.slice_max_mb = ctrl->val;
break;
case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_BYTES:
ctx->params.slice_max_bits = ctrl->val * 8;
break;
case V4L2_CID_MPEG_VIDEO_HEADER_MODE:
break;
default:
v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
"Invalid control, id=%d, val=%d\n",
ctrl->id, ctrl->val);
return -EINVAL;
}
return 0;
}
static struct v4l2_ctrl_ops coda_ctrl_ops = {
.s_ctrl = coda_s_ctrl,
};
static int coda_ctrls_setup(struct coda_ctx *ctx)
{
v4l2_ctrl_handler_init(&ctx->ctrls, 9);
v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
V4L2_CID_HFLIP, 0, 1, 1, 0);
v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
V4L2_CID_VFLIP, 0, 1, 1, 0);
v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
V4L2_CID_MPEG_VIDEO_BITRATE, 0, 32767000, 1, 0);
v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
V4L2_CID_MPEG_VIDEO_GOP_SIZE, 1, 60, 1, 16);
v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP, 1, 51, 1, 25);
v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP, 1, 51, 1, 25);
v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP, 1, 31, 1, 2);
v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP, 1, 31, 1, 2);
v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE,
V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_BYTES, 0x0,
V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_SINGLE);
v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB, 1, 0x3fffffff, 1, 1);
v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_BYTES, 1, 0x3fffffff, 1, 500);
v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
V4L2_CID_MPEG_VIDEO_HEADER_MODE,
V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME,
(1 << V4L2_MPEG_VIDEO_HEADER_MODE_SEPARATE),
V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME);
if (ctx->ctrls.error) {
v4l2_err(&ctx->dev->v4l2_dev, "control initialization error (%d)",
ctx->ctrls.error);
return -EINVAL;
}
return v4l2_ctrl_handler_setup(&ctx->ctrls);
}
static int coda_queue_init(void *priv, struct vb2_queue *src_vq,
struct vb2_queue *dst_vq)
{
struct coda_ctx *ctx = priv;
int ret;
src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
src_vq->io_modes = VB2_DMABUF | VB2_MMAP | VB2_USERPTR;
src_vq->drv_priv = ctx;
src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
src_vq->ops = &coda_qops;
src_vq->mem_ops = &vb2_dma_contig_memops;
src_vq->timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_COPY;
ret = vb2_queue_init(src_vq);
if (ret)
return ret;
dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
dst_vq->io_modes = VB2_DMABUF | VB2_MMAP | VB2_USERPTR;
dst_vq->drv_priv = ctx;
dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
dst_vq->ops = &coda_qops;
dst_vq->mem_ops = &vb2_dma_contig_memops;
dst_vq->timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_COPY;
return vb2_queue_init(dst_vq);
}
static int coda_next_free_instance(struct coda_dev *dev)
{
return ffz(dev->instance_mask);
}
static int coda_open(struct file *file)
{
struct coda_dev *dev = video_drvdata(file);
struct coda_ctx *ctx = NULL;
int ret = 0;
int idx;
idx = coda_next_free_instance(dev);
if (idx >= CODA_MAX_INSTANCES)
return -EBUSY;
set_bit(idx, &dev->instance_mask);
ctx = kzalloc(sizeof *ctx, GFP_KERNEL);
if (!ctx)
return -ENOMEM;
v4l2_fh_init(&ctx->fh, video_devdata(file));
file->private_data = &ctx->fh;
v4l2_fh_add(&ctx->fh);
ctx->dev = dev;
ctx->idx = idx;
set_default_params(ctx);
ctx->m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev, ctx,
&coda_queue_init);
if (IS_ERR(ctx->m2m_ctx)) {
ret = PTR_ERR(ctx->m2m_ctx);
v4l2_err(&dev->v4l2_dev, "%s return error (%d)\n",
__func__, ret);
goto err;
}
ret = coda_ctrls_setup(ctx);
if (ret) {
v4l2_err(&dev->v4l2_dev, "failed to setup coda controls\n");
goto err;
}
ctx->fh.ctrl_handler = &ctx->ctrls;
ctx->parabuf.vaddr = dma_alloc_coherent(&dev->plat_dev->dev,
CODA_PARA_BUF_SIZE, &ctx->parabuf.paddr, GFP_KERNEL);
if (!ctx->parabuf.vaddr) {
v4l2_err(&dev->v4l2_dev, "failed to allocate parabuf");
ret = -ENOMEM;
goto err;
}
coda_lock(ctx);
list_add(&ctx->list, &dev->instances);
coda_unlock(ctx);
clk_prepare_enable(dev->clk_per);
clk_prepare_enable(dev->clk_ahb);
v4l2_dbg(1, coda_debug, &dev->v4l2_dev, "Created instance %d (%p)\n",
ctx->idx, ctx);
return 0;
err:
v4l2_fh_del(&ctx->fh);
v4l2_fh_exit(&ctx->fh);
kfree(ctx);
return ret;
}
static int coda_release(struct file *file)
{
struct coda_dev *dev = video_drvdata(file);
struct coda_ctx *ctx = fh_to_ctx(file->private_data);
v4l2_dbg(1, coda_debug, &dev->v4l2_dev, "Releasing instance %p\n",
ctx);
coda_lock(ctx);
list_del(&ctx->list);
coda_unlock(ctx);
dma_free_coherent(&dev->plat_dev->dev, CODA_PARA_BUF_SIZE,
ctx->parabuf.vaddr, ctx->parabuf.paddr);
v4l2_m2m_ctx_release(ctx->m2m_ctx);
v4l2_ctrl_handler_free(&ctx->ctrls);
clk_disable_unprepare(dev->clk_per);
clk_disable_unprepare(dev->clk_ahb);
v4l2_fh_del(&ctx->fh);
v4l2_fh_exit(&ctx->fh);
clear_bit(ctx->idx, &dev->instance_mask);
kfree(ctx);
return 0;
}
static unsigned int coda_poll(struct file *file,
struct poll_table_struct *wait)
{
struct coda_ctx *ctx = fh_to_ctx(file->private_data);
int ret;
coda_lock(ctx);
ret = v4l2_m2m_poll(file, ctx->m2m_ctx, wait);
coda_unlock(ctx);
return ret;
}
static int coda_mmap(struct file *file, struct vm_area_struct *vma)
{
struct coda_ctx *ctx = fh_to_ctx(file->private_data);
return v4l2_m2m_mmap(file, ctx->m2m_ctx, vma);
}
static const struct v4l2_file_operations coda_fops = {
.owner = THIS_MODULE,
.open = coda_open,
.release = coda_release,
.poll = coda_poll,
.unlocked_ioctl = video_ioctl2,
.mmap = coda_mmap,
};
static irqreturn_t coda_irq_handler(int irq, void *data)
{
struct vb2_buffer *src_buf, *dst_buf;
struct coda_dev *dev = data;
u32 wr_ptr, start_ptr;
struct coda_ctx *ctx;
cancel_delayed_work(&dev->timeout);
/* read status register to attend the IRQ */
coda_read(dev, CODA_REG_BIT_INT_STATUS);
coda_write(dev, CODA_REG_BIT_INT_CLEAR_SET,
CODA_REG_BIT_INT_CLEAR);
ctx = v4l2_m2m_get_curr_priv(dev->m2m_dev);
if (ctx == NULL) {
v4l2_err(&dev->v4l2_dev, "Instance released before the end of transaction\n");
return IRQ_HANDLED;
}
if (ctx->aborting) {
v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
"task has been aborted\n");
return IRQ_HANDLED;
}
if (coda_isbusy(ctx->dev)) {
v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
"coda is still busy!!!!\n");
return IRQ_NONE;
}
complete(&dev->done);
src_buf = v4l2_m2m_src_buf_remove(ctx->m2m_ctx);
dst_buf = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx);
/* Get results from the coda */
coda_read(dev, CODA_RET_ENC_PIC_TYPE);
start_ptr = coda_read(dev, CODA_CMD_ENC_PIC_BB_START);
wr_ptr = coda_read(dev, CODA_REG_BIT_WR_PTR(ctx->idx));
/* Calculate bytesused field */
if (dst_buf->v4l2_buf.sequence == 0) {
dst_buf->v4l2_planes[0].bytesused = (wr_ptr - start_ptr) +
ctx->vpu_header_size[0] +
ctx->vpu_header_size[1] +
ctx->vpu_header_size[2];
} else {
dst_buf->v4l2_planes[0].bytesused = (wr_ptr - start_ptr);
}
v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, "frame size = %u\n",
wr_ptr - start_ptr);
coda_read(dev, CODA_RET_ENC_PIC_SLICE_NUM);
coda_read(dev, CODA_RET_ENC_PIC_FLAG);
if (src_buf->v4l2_buf.flags & V4L2_BUF_FLAG_KEYFRAME) {
dst_buf->v4l2_buf.flags |= V4L2_BUF_FLAG_KEYFRAME;
dst_buf->v4l2_buf.flags &= ~V4L2_BUF_FLAG_PFRAME;
} else {
dst_buf->v4l2_buf.flags |= V4L2_BUF_FLAG_PFRAME;
dst_buf->v4l2_buf.flags &= ~V4L2_BUF_FLAG_KEYFRAME;
}
dst_buf->v4l2_buf.timestamp = src_buf->v4l2_buf.timestamp;
dst_buf->v4l2_buf.timecode = src_buf->v4l2_buf.timecode;
v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_DONE);
v4l2_m2m_buf_done(dst_buf, VB2_BUF_STATE_DONE);
ctx->gopcounter--;
if (ctx->gopcounter < 0)
ctx->gopcounter = ctx->params.gop_size - 1;
v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
"job finished: encoding frame (%d) (%s)\n",
dst_buf->v4l2_buf.sequence,
(dst_buf->v4l2_buf.flags & V4L2_BUF_FLAG_KEYFRAME) ?
"KEYFRAME" : "PFRAME");
v4l2_m2m_job_finish(ctx->dev->m2m_dev, ctx->m2m_ctx);
return IRQ_HANDLED;
}
static void coda_timeout(struct work_struct *work)
{
struct coda_ctx *ctx;
struct coda_dev *dev = container_of(to_delayed_work(work),
struct coda_dev, timeout);
if (completion_done(&dev->done))
return;
complete(&dev->done);
dev_err(&dev->plat_dev->dev, "CODA PIC_RUN timeout, stopping all streams\n");
mutex_lock(&dev->dev_mutex);
list_for_each_entry(ctx, &dev->instances, list) {
v4l2_m2m_streamoff(NULL, ctx->m2m_ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
v4l2_m2m_streamoff(NULL, ctx->m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
}
mutex_unlock(&dev->dev_mutex);
}
static u32 coda_supported_firmwares[] = {
CODA_FIRMWARE_VERNUM(CODA_DX6, 2, 2, 5),
CODA_FIRMWARE_VERNUM(CODA_7541, 13, 4, 29),
};
static bool coda_firmware_supported(u32 vernum)
{
int i;
for (i = 0; i < ARRAY_SIZE(coda_supported_firmwares); i++)
if (vernum == coda_supported_firmwares[i])
return true;
return false;
}
static char *coda_product_name(int product)
{
static char buf[9];
switch (product) {
case CODA_DX6:
return "CodaDx6";
case CODA_7541:
return "CODA7541";
default:
snprintf(buf, sizeof(buf), "(0x%04x)", product);
return buf;
}
}
static int coda_hw_init(struct coda_dev *dev)
{
u16 product, major, minor, release;
u32 data;
u16 *p;
int i;
clk_prepare_enable(dev->clk_per);
clk_prepare_enable(dev->clk_ahb);
/*
* Copy the first CODA_ISRAM_SIZE in the internal SRAM.
* The 16-bit chars in the code buffer are in memory access
* order, re-sort them to CODA order for register download.
* Data in this SRAM survives a reboot.
*/
p = (u16 *)dev->codebuf.vaddr;
if (dev->devtype->product == CODA_DX6) {
for (i = 0; i < (CODA_ISRAM_SIZE / 2); i++) {
data = CODA_DOWN_ADDRESS_SET(i) |
CODA_DOWN_DATA_SET(p[i ^ 1]);
coda_write(dev, data, CODA_REG_BIT_CODE_DOWN);
}
} else {
for (i = 0; i < (CODA_ISRAM_SIZE / 2); i++) {
data = CODA_DOWN_ADDRESS_SET(i) |
CODA_DOWN_DATA_SET(p[round_down(i, 4) +
3 - (i % 4)]);
coda_write(dev, data, CODA_REG_BIT_CODE_DOWN);
}
}
/* Clear registers */
for (i = 0; i < 64; i++)
coda_write(dev, 0, CODA_REG_BIT_CODE_BUF_ADDR + i * 4);
/* Tell the BIT where to find everything it needs */
coda_write(dev, dev->workbuf.paddr,
CODA_REG_BIT_WORK_BUF_ADDR);
coda_write(dev, dev->codebuf.paddr,
CODA_REG_BIT_CODE_BUF_ADDR);
coda_write(dev, 0, CODA_REG_BIT_CODE_RUN);
/* Set default values */
switch (dev->devtype->product) {
case CODA_DX6:
coda_write(dev, CODADX6_STREAM_BUF_PIC_FLUSH, CODA_REG_BIT_STREAM_CTRL);
break;
default:
coda_write(dev, CODA7_STREAM_BUF_PIC_FLUSH, CODA_REG_BIT_STREAM_CTRL);
}
coda_write(dev, 0, CODA_REG_BIT_FRAME_MEM_CTRL);
if (dev->devtype->product != CODA_DX6)
coda_write(dev, 0, CODA7_REG_BIT_AXI_SRAM_USE);
coda_write(dev, CODA_INT_INTERRUPT_ENABLE,
CODA_REG_BIT_INT_ENABLE);
/* Reset VPU and start processor */
data = coda_read(dev, CODA_REG_BIT_CODE_RESET);
data |= CODA_REG_RESET_ENABLE;
coda_write(dev, data, CODA_REG_BIT_CODE_RESET);
udelay(10);
data &= ~CODA_REG_RESET_ENABLE;
coda_write(dev, data, CODA_REG_BIT_CODE_RESET);
coda_write(dev, CODA_REG_RUN_ENABLE, CODA_REG_BIT_CODE_RUN);
/* Load firmware */
coda_write(dev, 0, CODA_CMD_FIRMWARE_VERNUM);
coda_write(dev, CODA_REG_BIT_BUSY_FLAG, CODA_REG_BIT_BUSY);
coda_write(dev, 0, CODA_REG_BIT_RUN_INDEX);
coda_write(dev, 0, CODA_REG_BIT_RUN_COD_STD);
coda_write(dev, CODA_COMMAND_FIRMWARE_GET, CODA_REG_BIT_RUN_COMMAND);
if (coda_wait_timeout(dev)) {
clk_disable_unprepare(dev->clk_per);
clk_disable_unprepare(dev->clk_ahb);
v4l2_err(&dev->v4l2_dev, "firmware get command error\n");
return -EIO;
}
/* Check we are compatible with the loaded firmware */
data = coda_read(dev, CODA_CMD_FIRMWARE_VERNUM);
product = CODA_FIRMWARE_PRODUCT(data);
major = CODA_FIRMWARE_MAJOR(data);
minor = CODA_FIRMWARE_MINOR(data);
release = CODA_FIRMWARE_RELEASE(data);
clk_disable_unprepare(dev->clk_per);
clk_disable_unprepare(dev->clk_ahb);
if (product != dev->devtype->product) {
v4l2_err(&dev->v4l2_dev, "Wrong firmware. Hw: %s, Fw: %s,"
" Version: %u.%u.%u\n",
coda_product_name(dev->devtype->product),
coda_product_name(product), major, minor, release);
return -EINVAL;
}
v4l2_info(&dev->v4l2_dev, "Initialized %s.\n",
coda_product_name(product));
if (coda_firmware_supported(data)) {
v4l2_info(&dev->v4l2_dev, "Firmware version: %u.%u.%u\n",
major, minor, release);
} else {
v4l2_warn(&dev->v4l2_dev, "Unsupported firmware version: "
"%u.%u.%u\n", major, minor, release);
}
return 0;
}
static void coda_fw_callback(const struct firmware *fw, void *context)
{
struct coda_dev *dev = context;
struct platform_device *pdev = dev->plat_dev;
int ret;
if (!fw) {
v4l2_err(&dev->v4l2_dev, "firmware request failed\n");
return;
}
/* allocate auxiliary per-device code buffer for the BIT processor */
dev->codebuf.size = fw->size;
dev->codebuf.vaddr = dma_alloc_coherent(&pdev->dev, fw->size,
&dev->codebuf.paddr,
GFP_KERNEL);
if (!dev->codebuf.vaddr) {
dev_err(&pdev->dev, "failed to allocate code buffer\n");
return;
}
/* Copy the whole firmware image to the code buffer */
memcpy(dev->codebuf.vaddr, fw->data, fw->size);
release_firmware(fw);
ret = coda_hw_init(dev);
if (ret) {
v4l2_err(&dev->v4l2_dev, "HW initialization failed\n");
return;
}
dev->vfd.fops = &coda_fops,
dev->vfd.ioctl_ops = &coda_ioctl_ops;
dev->vfd.release = video_device_release_empty,
dev->vfd.lock = &dev->dev_mutex;
dev->vfd.v4l2_dev = &dev->v4l2_dev;
dev->vfd.vfl_dir = VFL_DIR_M2M;
snprintf(dev->vfd.name, sizeof(dev->vfd.name), "%s", CODA_NAME);
video_set_drvdata(&dev->vfd, dev);
dev->alloc_ctx = vb2_dma_contig_init_ctx(&pdev->dev);
if (IS_ERR(dev->alloc_ctx)) {
v4l2_err(&dev->v4l2_dev, "Failed to alloc vb2 context\n");
return;
}
dev->m2m_dev = v4l2_m2m_init(&coda_m2m_ops);
if (IS_ERR(dev->m2m_dev)) {
v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem device\n");
goto rel_ctx;
}
ret = video_register_device(&dev->vfd, VFL_TYPE_GRABBER, 0);
if (ret) {
v4l2_err(&dev->v4l2_dev, "Failed to register video device\n");
goto rel_m2m;
}
v4l2_info(&dev->v4l2_dev, "codec registered as /dev/video%d\n",
dev->vfd.num);
return;
rel_m2m:
v4l2_m2m_release(dev->m2m_dev);
rel_ctx:
vb2_dma_contig_cleanup_ctx(dev->alloc_ctx);
}
static int coda_firmware_request(struct coda_dev *dev)
{
char *fw = dev->devtype->firmware;
dev_dbg(&dev->plat_dev->dev, "requesting firmware '%s' for %s\n", fw,
coda_product_name(dev->devtype->product));
return request_firmware_nowait(THIS_MODULE, true,
fw, &dev->plat_dev->dev, GFP_KERNEL, dev, coda_fw_callback);
}
enum coda_platform {
CODA_IMX27,
CODA_IMX53,
};
static const struct coda_devtype coda_devdata[] = {
[CODA_IMX27] = {
.firmware = "v4l-codadx6-imx27.bin",
.product = CODA_DX6,
.codecs = codadx6_codecs,
.num_codecs = ARRAY_SIZE(codadx6_codecs),
},
[CODA_IMX53] = {
.firmware = "v4l-coda7541-imx53.bin",
.product = CODA_7541,
.codecs = coda7_codecs,
.num_codecs = ARRAY_SIZE(coda7_codecs),
},
};
static struct platform_device_id coda_platform_ids[] = {
{ .name = "coda-imx27", .driver_data = CODA_IMX27 },
{ .name = "coda-imx53", .driver_data = CODA_IMX53 },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(platform, coda_platform_ids);
#ifdef CONFIG_OF
static const struct of_device_id coda_dt_ids[] = {
{ .compatible = "fsl,imx27-vpu", .data = &coda_platform_ids[CODA_IMX27] },
{ .compatible = "fsl,imx53-vpu", .data = &coda_devdata[CODA_IMX53] },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, coda_dt_ids);
#endif
static int coda_probe(struct platform_device *pdev)
{
const struct of_device_id *of_id =
of_match_device(of_match_ptr(coda_dt_ids), &pdev->dev);
const struct platform_device_id *pdev_id;
struct coda_platform_data *pdata = pdev->dev.platform_data;
struct device_node *np = pdev->dev.of_node;
struct gen_pool *pool;
struct coda_dev *dev;
struct resource *res;
int ret, irq;
dev = devm_kzalloc(&pdev->dev, sizeof *dev, GFP_KERNEL);
if (!dev) {
dev_err(&pdev->dev, "Not enough memory for %s\n",
CODA_NAME);
return -ENOMEM;
}
spin_lock_init(&dev->irqlock);
INIT_LIST_HEAD(&dev->instances);
INIT_DELAYED_WORK(&dev->timeout, coda_timeout);
init_completion(&dev->done);
complete(&dev->done);
dev->plat_dev = pdev;
dev->clk_per = devm_clk_get(&pdev->dev, "per");
if (IS_ERR(dev->clk_per)) {
dev_err(&pdev->dev, "Could not get per clock\n");
return PTR_ERR(dev->clk_per);
}
dev->clk_ahb = devm_clk_get(&pdev->dev, "ahb");
if (IS_ERR(dev->clk_ahb)) {
dev_err(&pdev->dev, "Could not get ahb clock\n");
return PTR_ERR(dev->clk_ahb);
}
/* Get memory for physical registers */
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (res == NULL) {
dev_err(&pdev->dev, "failed to get memory region resource\n");
return -ENOENT;
}
dev->regs_base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(dev->regs_base))
return PTR_ERR(dev->regs_base);
/* IRQ */
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
dev_err(&pdev->dev, "failed to get irq resource\n");
return -ENOENT;
}
if (devm_request_irq(&pdev->dev, irq, coda_irq_handler,
0, CODA_NAME, dev) < 0) {
dev_err(&pdev->dev, "failed to request irq\n");
return -ENOENT;
}
/* Get IRAM pool from device tree or platform data */
pool = of_get_named_gen_pool(np, "iram", 0);
if (!pool && pdata)
pool = dev_get_gen_pool(pdata->iram_dev);
if (!pool) {
dev_err(&pdev->dev, "iram pool not available\n");
return -ENOMEM;
}
dev->iram_pool = pool;
ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev);
if (ret)
return ret;
mutex_init(&dev->dev_mutex);
pdev_id = of_id ? of_id->data : platform_get_device_id(pdev);
if (of_id) {
dev->devtype = of_id->data;
} else if (pdev_id) {
dev->devtype = &coda_devdata[pdev_id->driver_data];
} else {
v4l2_device_unregister(&dev->v4l2_dev);
return -EINVAL;
}
/* allocate auxiliary per-device buffers for the BIT processor */
switch (dev->devtype->product) {
case CODA_DX6:
dev->workbuf.size = CODADX6_WORK_BUF_SIZE;
break;
default:
dev->workbuf.size = CODA7_WORK_BUF_SIZE;
}
dev->workbuf.vaddr = dma_alloc_coherent(&pdev->dev, dev->workbuf.size,
&dev->workbuf.paddr,
GFP_KERNEL);
if (!dev->workbuf.vaddr) {
dev_err(&pdev->dev, "failed to allocate work buffer\n");
v4l2_device_unregister(&dev->v4l2_dev);
return -ENOMEM;
}
if (dev->devtype->product == CODA_DX6)
dev->iram_size = CODADX6_IRAM_SIZE;
else
dev->iram_size = CODA7_IRAM_SIZE;
dev->iram_vaddr = gen_pool_alloc(dev->iram_pool, dev->iram_size);
if (!dev->iram_vaddr) {
dev_err(&pdev->dev, "unable to alloc iram\n");
return -ENOMEM;
}
dev->iram_paddr = gen_pool_virt_to_phys(dev->iram_pool,
dev->iram_vaddr);
platform_set_drvdata(pdev, dev);
return coda_firmware_request(dev);
}
static int coda_remove(struct platform_device *pdev)
{
struct coda_dev *dev = platform_get_drvdata(pdev);
video_unregister_device(&dev->vfd);
if (dev->m2m_dev)
v4l2_m2m_release(dev->m2m_dev);
if (dev->alloc_ctx)
vb2_dma_contig_cleanup_ctx(dev->alloc_ctx);
v4l2_device_unregister(&dev->v4l2_dev);
if (dev->iram_vaddr)
gen_pool_free(dev->iram_pool, dev->iram_vaddr, dev->iram_size);
if (dev->codebuf.vaddr)
dma_free_coherent(&pdev->dev, dev->codebuf.size,
&dev->codebuf.vaddr, dev->codebuf.paddr);
if (dev->workbuf.vaddr)
dma_free_coherent(&pdev->dev, dev->workbuf.size, &dev->workbuf.vaddr,
dev->workbuf.paddr);
return 0;
}
static struct platform_driver coda_driver = {
.probe = coda_probe,
.remove = coda_remove,
.driver = {
.name = CODA_NAME,
.owner = THIS_MODULE,
.of_match_table = of_match_ptr(coda_dt_ids),
},
.id_table = coda_platform_ids,
};
module_platform_driver(coda_driver);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Javier Martin <javier.martin@vista-silicon.com>");
MODULE_DESCRIPTION("Coda multi-standard codec V4L2 driver");
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