Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-12-28 13:51:44 +00:00
Code Issues Packages Projects Releases Wiki Activity
a1192a17ee
linux/drivers/media/platform/coda/coda-common.c
Philipp Zabel a1192a17ee [media] coda: add context ops 
Add a struct coda_context_ops that encapsulates context specific operations.
This will simplify adding JPEG support in the future and helps to avoid
exporting all functions individually when they move out of the main code
file.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-08-21 15:25:21 -05:00

3828 lines
105 KiB
C
Raw Blame History

/*
* 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/debugfs.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/kfifo.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/slab.h>
#include <linux/videodev2.h>
#include <linux/of.h>
#include <linux/platform_data/coda.h>
#include <linux/reset.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-device.h>
#include <media/v4l2-event.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"
#include "coda_regs.h"
#define CODA_NAME "coda"
#define CODADX6_MAX_INSTANCES 4
#define CODA_PARA_BUF_SIZE (10 * 1024)
#define CODA_ISRAM_SIZE (2048 * 2)
#define CODA7_PS_BUF_SIZE 0x28000
#define CODA9_PS_SAVE_SIZE (512 * 1024)
#define CODA_DEFAULT_GAMMA 4096
#define CODA9_DEFAULT_GAMMA 24576 /* 0.75 * 32768 */
#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)");
struct coda_fmt {
char *name;
u32 fourcc;
};
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 };
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);
}
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;
if (dev->devtype->product == CODA_960 ||
dev->devtype->product == CODA_7541) {
/* Restore context related registers to CODA */
coda_write(dev, ctx->bit_stream_param,
CODA_REG_BIT_BIT_STREAM_PARAM);
coda_write(dev, ctx->frm_dis_flg,
CODA_REG_BIT_FRM_DIS_FLG(ctx->reg_idx));
coda_write(dev, ctx->frame_mem_ctrl,
CODA_REG_BIT_FRAME_MEM_CTRL);
coda_write(dev, ctx->workbuf.paddr, CODA_REG_BIT_WORK_BUF_ADDR);
}
if (dev->devtype->product == CODA_960) {
coda_write(dev, 1, CODA9_GDI_WPROT_ERR_CLR);
coda_write(dev, 0, CODA9_GDI_WPROT_RGN_EN);
}
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, ctx->params.codec_mode_aux, CODA7_REG_BIT_RUN_AUX_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 int coda_hw_reset(struct coda_ctx *ctx)
{
struct coda_dev *dev = ctx->dev;
unsigned long timeout;
unsigned int idx;
int ret;
if (!dev->rstc)
return -ENOENT;
idx = coda_read(dev, CODA_REG_BIT_RUN_INDEX);
if (dev->devtype->product == CODA_960) {
timeout = jiffies + msecs_to_jiffies(100);
coda_write(dev, 0x11, CODA9_GDI_BUS_CTRL);
while (coda_read(dev, CODA9_GDI_BUS_STATUS) != 0x77) {
if (time_after(jiffies, timeout))
return -ETIME;
cpu_relax();
}
}
ret = reset_control_reset(dev->rstc);
if (ret < 0)
return ret;
if (dev->devtype->product == CODA_960)
coda_write(dev, 0x00, CODA9_GDI_BUS_CTRL);
coda_write(dev, CODA_REG_BIT_BUSY_FLAG, CODA_REG_BIT_BUSY);
coda_write(dev, CODA_REG_RUN_ENABLE, CODA_REG_BIT_CODE_RUN);
ret = coda_wait_timeout(dev);
coda_write(dev, idx, CODA_REG_BIT_RUN_INDEX);
return ret;
}
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:
return NULL;
}
}
/*
* Array of all formats supported by any version of Coda:
*/
static const 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 const 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 const 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),
CODA_CODEC(CODA7_MODE_DECODE_H264, V4L2_PIX_FMT_H264, V4L2_PIX_FMT_YUV420, 1920, 1080),
CODA_CODEC(CODA7_MODE_DECODE_MP4, V4L2_PIX_FMT_MPEG4, V4L2_PIX_FMT_YUV420, 1920, 1080),
};
static const struct coda_codec coda9_codecs[] = {
CODA_CODEC(CODA9_MODE_ENCODE_H264, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_H264, 1920, 1080),
CODA_CODEC(CODA9_MODE_ENCODE_MP4, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_MPEG4, 1920, 1080),
CODA_CODEC(CODA9_MODE_DECODE_H264, V4L2_PIX_FMT_H264, V4L2_PIX_FMT_YUV420, 1920, 1080),
CODA_CODEC(CODA9_MODE_DECODE_MP4, V4L2_PIX_FMT_MPEG4, V4L2_PIX_FMT_YUV420, 1920, 1080),
};
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 const struct coda_codec *coda_find_codec(struct coda_dev *dev,
int src_fourcc, int dst_fourcc)
{
const 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];
}
static void coda_get_max_dimensions(struct coda_dev *dev,
const struct coda_codec *codec,
int *max_w, int *max_h)
{
const struct coda_codec *codecs = dev->devtype->codecs;
int num_codecs = dev->devtype->num_codecs;
unsigned int w, h;
int k;
if (codec) {
w = codec->max_w;
h = codec->max_h;
} else {
for (k = 0, w = 0, h = 0; k < num_codecs; k++) {
w = max(w, codecs[k].max_w);
h = max(h, codecs[k].max_h);
}
}
if (max_w)
*max_w = w;
if (max_h)
*max_h = h;
}
static char *coda_product_name(int product)
{
static char buf[9];
switch (product) {
case CODA_DX6:
return "CodaDx6";
case CODA_7541:
return "CODA7541";
case CODA_960:
return "CODA960";
default:
snprintf(buf, sizeof(buf), "(0x%04x)", product);
return buf;
}
}
/*
* V4L2 ioctl() operations.
*/
static int coda_querycap(struct file *file, void *priv,
struct v4l2_capability *cap)
{
struct coda_ctx *ctx = fh_to_ctx(priv);
strlcpy(cap->driver, CODA_NAME, sizeof(cap->driver));
strlcpy(cap->card, coda_product_name(ctx->dev->devtype->product),
sizeof(cap->card));
strlcpy(cap->bus_info, "platform:" CODA_NAME, sizeof(cap->bus_info));
cap->device_caps = V4L2_CAP_VIDEO_M2M | V4L2_CAP_STREAMING;
cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
return 0;
}
static int coda_enum_fmt(struct file *file, void *priv,
struct v4l2_fmtdesc *f)
{
struct coda_ctx *ctx = fh_to_ctx(priv);
const struct coda_codec *codecs = ctx->dev->devtype->codecs;
const struct coda_fmt *formats = coda_formats;
const struct coda_fmt *fmt;
int num_codecs = ctx->dev->devtype->num_codecs;
int num_formats = ARRAY_SIZE(coda_formats);
int i, k, num = 0;
bool yuv;
if (ctx->inst_type == CODA_INST_ENCODER)
yuv = (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT);
else
yuv = (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE);
for (i = 0; i < num_formats; i++) {
/* Skip either raw or compressed formats */
if (yuv != coda_format_is_yuv(formats[i].fourcc))
continue;
/* All uncompressed formats are always supported */
if (yuv) {
if (num == f->index)
break;
++num;
continue;
}
/* Compressed formats may be supported, check the codec list */
for (k = 0; k < num_codecs; k++) {
if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE &&
formats[i].fourcc == codecs[k].dst_fourcc)
break;
if (f->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;
if (!yuv)
f->flags |= V4L2_FMT_FLAG_COMPRESSED;
return 0;
}
/* Format not found */
return -EINVAL;
}
static int coda_g_fmt(struct file *file, void *priv,
struct v4l2_format *f)
{
struct coda_q_data *q_data;
struct coda_ctx *ctx = fh_to_ctx(priv);
q_data = get_q_data(ctx, f->type);
if (!q_data)
return -EINVAL;
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;
f->fmt.pix.bytesperline = q_data->bytesperline;
f->fmt.pix.sizeimage = q_data->sizeimage;
f->fmt.pix.colorspace = ctx->colorspace;
return 0;
}
static int coda_try_fmt(struct coda_ctx *ctx, const struct coda_codec *codec,
struct v4l2_format *f)
{
struct coda_dev *dev = ctx->dev;
struct coda_q_data *q_data;
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;
coda_get_max_dimensions(dev, codec, &max_w, &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);
switch (f->fmt.pix.pixelformat) {
case V4L2_PIX_FMT_YUV420:
case V4L2_PIX_FMT_YVU420:
case V4L2_PIX_FMT_H264:
case V4L2_PIX_FMT_MPEG4:
case V4L2_PIX_FMT_JPEG:
break;
default:
q_data = get_q_data(ctx, f->type);
if (!q_data)
return -EINVAL;
f->fmt.pix.pixelformat = q_data->fourcc;
}
switch (f->fmt.pix.pixelformat) {
case V4L2_PIX_FMT_YUV420:
case V4L2_PIX_FMT_YVU420:
/* Frame stride must be multiple of 8, but 16 for h.264 */
f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16);
f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
f->fmt.pix.height * 3 / 2;
break;
case V4L2_PIX_FMT_H264:
case V4L2_PIX_FMT_MPEG4:
case V4L2_PIX_FMT_JPEG:
f->fmt.pix.bytesperline = 0;
f->fmt.pix.sizeimage = CODA_MAX_FRAME_SIZE;
break;
default:
BUG();
}
return 0;
}
static int coda_try_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct coda_ctx *ctx = fh_to_ctx(priv);
const struct coda_codec *codec = NULL;
struct vb2_queue *src_vq;
int ret;
/*
* If the source format is already fixed, try to find a codec that
* converts to the given destination format
*/
src_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
if (vb2_is_streaming(src_vq)) {
struct coda_q_data *q_data_src;
q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
codec = coda_find_codec(ctx->dev, q_data_src->fourcc,
f->fmt.pix.pixelformat);
if (!codec)
return -EINVAL;
f->fmt.pix.width = q_data_src->width;
f->fmt.pix.height = q_data_src->height;
} else {
/* Otherwise determine codec by encoded format, if possible */
codec = coda_find_codec(ctx->dev, V4L2_PIX_FMT_YUV420,
f->fmt.pix.pixelformat);
}
f->fmt.pix.colorspace = ctx->colorspace;
ret = coda_try_fmt(ctx, codec, f);
if (ret < 0)
return ret;
/* The h.264 decoder only returns complete 16x16 macroblocks */
if (codec && codec->src_fourcc == V4L2_PIX_FMT_H264) {
f->fmt.pix.width = f->fmt.pix.width;
f->fmt.pix.height = round_up(f->fmt.pix.height, 16);
f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16);
f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
f->fmt.pix.height * 3 / 2;
}
return 0;
}
static int coda_try_fmt_vid_out(struct file *file, void *priv,
struct v4l2_format *f)
{
struct coda_ctx *ctx = fh_to_ctx(priv);
const 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 (!codec && ctx->inst_type == CODA_INST_DECODER) {
codec = coda_find_codec(ctx->dev, V4L2_PIX_FMT_H264,
V4L2_PIX_FMT_YUV420);
if (!codec)
return -EINVAL;
}
if (!f->fmt.pix.colorspace)
f->fmt.pix.colorspace = V4L2_COLORSPACE_REC709;
return coda_try_fmt(ctx, codec, f);
}
static int coda_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->fh.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->bytesperline = f->fmt.pix.bytesperline;
q_data->sizeimage = f->fmt.pix.sizeimage;
q_data->rect.left = 0;
q_data->rect.top = 0;
q_data->rect.width = f->fmt.pix.width;
q_data->rect.height = f->fmt.pix.height;
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 coda_s_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct coda_ctx *ctx = fh_to_ctx(priv);
int ret;
ret = coda_try_fmt_vid_cap(file, priv, f);
if (ret)
return ret;
return coda_s_fmt(ctx, f);
}
static int coda_s_fmt_vid_out(struct file *file, void *priv,
struct v4l2_format *f)
{
struct coda_ctx *ctx = fh_to_ctx(priv);
int ret;
ret = coda_try_fmt_vid_out(file, priv, f);
if (ret)
return ret;
ret = coda_s_fmt(ctx, f);
if (ret)
ctx->colorspace = f->fmt.pix.colorspace;
return ret;
}
static int coda_qbuf(struct file *file, void *priv,
struct v4l2_buffer *buf)
{
struct coda_ctx *ctx = fh_to_ctx(priv);
return v4l2_m2m_qbuf(file, ctx->fh.m2m_ctx, buf);
}
static bool coda_buf_is_end_of_stream(struct coda_ctx *ctx,
struct v4l2_buffer *buf)
{
struct vb2_queue *src_vq;
src_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
return ((ctx->bit_stream_param & CODA_BIT_STREAM_END_FLAG) &&
(buf->sequence == (ctx->qsequence - 1)));
}
static int coda_dqbuf(struct file *file, void *priv,
struct v4l2_buffer *buf)
{
struct coda_ctx *ctx = fh_to_ctx(priv);
int ret;
ret = v4l2_m2m_dqbuf(file, ctx->fh.m2m_ctx, buf);
/* If this is the last capture buffer, emit an end-of-stream event */
if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE &&
coda_buf_is_end_of_stream(ctx, buf)) {
const struct v4l2_event eos_event = {
.type = V4L2_EVENT_EOS
};
v4l2_event_queue_fh(&ctx->fh, &eos_event);
}
return ret;
}
static int coda_g_selection(struct file *file, void *fh,
struct v4l2_selection *s)
{
struct coda_ctx *ctx = fh_to_ctx(fh);
struct coda_q_data *q_data;
struct v4l2_rect r, *rsel;
q_data = get_q_data(ctx, s->type);
if (!q_data)
return -EINVAL;
r.left = 0;
r.top = 0;
r.width = q_data->width;
r.height = q_data->height;
rsel = &q_data->rect;
switch (s->target) {
case V4L2_SEL_TGT_CROP_DEFAULT:
case V4L2_SEL_TGT_CROP_BOUNDS:
rsel = &r;
/* fallthrough */
case V4L2_SEL_TGT_CROP:
if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
return -EINVAL;
break;
case V4L2_SEL_TGT_COMPOSE_BOUNDS:
case V4L2_SEL_TGT_COMPOSE_PADDED:
rsel = &r;
/* fallthrough */
case V4L2_SEL_TGT_COMPOSE:
case V4L2_SEL_TGT_COMPOSE_DEFAULT:
if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL;
break;
default:
return -EINVAL;
}
s->r = *rsel;
return 0;
}
static int coda_try_decoder_cmd(struct file *file, void *fh,
struct v4l2_decoder_cmd *dc)
{
if (dc->cmd != V4L2_DEC_CMD_STOP)
return -EINVAL;
if (dc->flags & V4L2_DEC_CMD_STOP_TO_BLACK)
return -EINVAL;
if (!(dc->flags & V4L2_DEC_CMD_STOP_IMMEDIATELY) && (dc->stop.pts != 0))
return -EINVAL;
return 0;
}
static int coda_decoder_cmd(struct file *file, void *fh,
struct v4l2_decoder_cmd *dc)
{
struct coda_ctx *ctx = fh_to_ctx(fh);
struct coda_dev *dev = ctx->dev;
int ret;
ret = coda_try_decoder_cmd(file, fh, dc);
if (ret < 0)
return ret;
/* Ignore decoder stop command silently in encoder context */
if (ctx->inst_type != CODA_INST_DECODER)
return 0;
/* Set the strem-end flag on this context */
ctx->bit_stream_param |= CODA_BIT_STREAM_END_FLAG;
if ((dev->devtype->product == CODA_960) &&
coda_isbusy(dev) &&
(ctx->idx == coda_read(dev, CODA_REG_BIT_RUN_INDEX))) {
/* If this context is currently running, update the hardware flag */
coda_write(dev, ctx->bit_stream_param, CODA_REG_BIT_BIT_STREAM_PARAM);
}
ctx->hold = false;
v4l2_m2m_try_schedule(ctx->fh.m2m_ctx);
return 0;
}
static int coda_subscribe_event(struct v4l2_fh *fh,
const struct v4l2_event_subscription *sub)
{
switch (sub->type) {
case V4L2_EVENT_EOS:
return v4l2_event_subscribe(fh, sub, 0, NULL);
default:
return v4l2_ctrl_subscribe_event(fh, sub);
}
}
static const struct v4l2_ioctl_ops coda_ioctl_ops = {
.vidioc_querycap = coda_querycap,
.vidioc_enum_fmt_vid_cap = coda_enum_fmt,
.vidioc_g_fmt_vid_cap = coda_g_fmt,
.vidioc_try_fmt_vid_cap = coda_try_fmt_vid_cap,
.vidioc_s_fmt_vid_cap = coda_s_fmt_vid_cap,
.vidioc_enum_fmt_vid_out = coda_enum_fmt,
.vidioc_g_fmt_vid_out = coda_g_fmt,
.vidioc_try_fmt_vid_out = coda_try_fmt_vid_out,
.vidioc_s_fmt_vid_out = coda_s_fmt_vid_out,
.vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs,
.vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
.vidioc_qbuf = coda_qbuf,
.vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
.vidioc_dqbuf = coda_dqbuf,
.vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
.vidioc_streamon = v4l2_m2m_ioctl_streamon,
.vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
.vidioc_g_selection = coda_g_selection,
.vidioc_try_decoder_cmd = coda_try_decoder_cmd,
.vidioc_decoder_cmd = coda_decoder_cmd,
.vidioc_subscribe_event = coda_subscribe_event,
.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
};
static int __coda_start_decoding(struct coda_ctx *ctx);
static inline int coda_get_bitstream_payload(struct coda_ctx *ctx)
{
return kfifo_len(&ctx->bitstream_fifo);
}
static void coda_kfifo_sync_from_device(struct coda_ctx *ctx)
{
struct __kfifo *kfifo = &ctx->bitstream_fifo.kfifo;
struct coda_dev *dev = ctx->dev;
u32 rd_ptr;
rd_ptr = coda_read(dev, CODA_REG_BIT_RD_PTR(ctx->reg_idx));
kfifo->out = (kfifo->in & ~kfifo->mask) |
(rd_ptr - ctx->bitstream.paddr);
if (kfifo->out > kfifo->in)
kfifo->out -= kfifo->mask + 1;
}
static void coda_kfifo_sync_to_device_full(struct coda_ctx *ctx)
{
struct __kfifo *kfifo = &ctx->bitstream_fifo.kfifo;
struct coda_dev *dev = ctx->dev;
u32 rd_ptr, wr_ptr;
rd_ptr = ctx->bitstream.paddr + (kfifo->out & kfifo->mask);
coda_write(dev, rd_ptr, CODA_REG_BIT_RD_PTR(ctx->reg_idx));
wr_ptr = ctx->bitstream.paddr + (kfifo->in & kfifo->mask);
coda_write(dev, wr_ptr, CODA_REG_BIT_WR_PTR(ctx->reg_idx));
}
static void coda_kfifo_sync_to_device_write(struct coda_ctx *ctx)
{
struct __kfifo *kfifo = &ctx->bitstream_fifo.kfifo;
struct coda_dev *dev = ctx->dev;
u32 wr_ptr;
wr_ptr = ctx->bitstream.paddr + (kfifo->in & kfifo->mask);
coda_write(dev, wr_ptr, CODA_REG_BIT_WR_PTR(ctx->reg_idx));
}
static int coda_bitstream_queue(struct coda_ctx *ctx, struct vb2_buffer *src_buf)
{
u32 src_size = vb2_get_plane_payload(src_buf, 0);
u32 n;
n = kfifo_in(&ctx->bitstream_fifo, vb2_plane_vaddr(src_buf, 0), src_size);
if (n < src_size)
return -ENOSPC;
dma_sync_single_for_device(&ctx->dev->plat_dev->dev, ctx->bitstream.paddr,
ctx->bitstream.size, DMA_TO_DEVICE);
src_buf->v4l2_buf.sequence = ctx->qsequence++;
return 0;
}
static bool coda_bitstream_try_queue(struct coda_ctx *ctx,
struct vb2_buffer *src_buf)
{
int ret;
if (coda_get_bitstream_payload(ctx) +
vb2_get_plane_payload(src_buf, 0) + 512 >= ctx->bitstream.size)
return false;
if (vb2_plane_vaddr(src_buf, 0) == NULL) {
v4l2_err(&ctx->dev->v4l2_dev, "trying to queue empty buffer\n");
return true;
}
ret = coda_bitstream_queue(ctx, src_buf);
if (ret < 0) {
v4l2_err(&ctx->dev->v4l2_dev, "bitstream buffer overflow\n");
return false;
}
/* Sync read pointer to device */
if (ctx == v4l2_m2m_get_curr_priv(ctx->dev->m2m_dev))
coda_kfifo_sync_to_device_write(ctx);
ctx->hold = false;
return true;
}
static void coda_fill_bitstream(struct coda_ctx *ctx)
{
struct vb2_buffer *src_buf;
struct coda_timestamp *ts;
while (v4l2_m2m_num_src_bufs_ready(ctx->fh.m2m_ctx) > 0) {
src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
if (coda_bitstream_try_queue(ctx, src_buf)) {
/*
* Source buffer is queued in the bitstream ringbuffer;
* queue the timestamp and mark source buffer as done
*/
src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
ts = kmalloc(sizeof(*ts), GFP_KERNEL);
if (ts) {
ts->sequence = src_buf->v4l2_buf.sequence;
ts->timecode = src_buf->v4l2_buf.timecode;
ts->timestamp = src_buf->v4l2_buf.timestamp;
list_add_tail(&ts->list, &ctx->timestamp_list);
}
v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_DONE);
} else {
break;
}
}
}
static void coda_set_gdi_regs(struct coda_ctx *ctx)
{
struct gdi_tiled_map *tiled_map = &ctx->tiled_map;
struct coda_dev *dev = ctx->dev;
int i;
for (i = 0; i < 16; i++)
coda_write(dev, tiled_map->xy2ca_map[i],
CODA9_GDI_XY2_CAS_0 + 4 * i);
for (i = 0; i < 4; i++)
coda_write(dev, tiled_map->xy2ba_map[i],
CODA9_GDI_XY2_BA_0 + 4 * i);
for (i = 0; i < 16; i++)
coda_write(dev, tiled_map->xy2ra_map[i],
CODA9_GDI_XY2_RAS_0 + 4 * i);
coda_write(dev, tiled_map->xy2rbc_config, CODA9_GDI_XY2_RBC_CONFIG);
for (i = 0; i < 32; i++)
coda_write(dev, tiled_map->rbc2axi_map[i],
CODA9_GDI_RBC2_AXI_0 + 4 * i);
}
/*
* Mem-to-mem operations.
*/
static int coda_prepare_decode(struct coda_ctx *ctx)
{
struct vb2_buffer *dst_buf;
struct coda_dev *dev = ctx->dev;
struct coda_q_data *q_data_dst;
u32 stridey, height;
u32 picture_y, picture_cb, picture_cr;
dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
if (ctx->params.rot_mode & CODA_ROT_90) {
stridey = q_data_dst->height;
height = q_data_dst->width;
} else {
stridey = q_data_dst->width;
height = q_data_dst->height;
}
/* Try to copy source buffer contents into the bitstream ringbuffer */
mutex_lock(&ctx->bitstream_mutex);
coda_fill_bitstream(ctx);
mutex_unlock(&ctx->bitstream_mutex);
if (coda_get_bitstream_payload(ctx) < 512 &&
(!(ctx->bit_stream_param & CODA_BIT_STREAM_END_FLAG))) {
v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
"bitstream payload: %d, skipping\n",
coda_get_bitstream_payload(ctx));
v4l2_m2m_job_finish(ctx->dev->m2m_dev, ctx->fh.m2m_ctx);
return -EAGAIN;
}
/* Run coda_start_decoding (again) if not yet initialized */
if (!ctx->initialized) {
int ret = __coda_start_decoding(ctx);
if (ret < 0) {
v4l2_err(&dev->v4l2_dev, "failed to start decoding\n");
v4l2_m2m_job_finish(ctx->dev->m2m_dev, ctx->fh.m2m_ctx);
return -EAGAIN;
} else {
ctx->initialized = 1;
}
}
if (dev->devtype->product == CODA_960)
coda_set_gdi_regs(ctx);
/* Set rotator output */
picture_y = vb2_dma_contig_plane_dma_addr(dst_buf, 0);
if (q_data_dst->fourcc == V4L2_PIX_FMT_YVU420) {
/* Switch Cr and Cb for YVU420 format */
picture_cr = picture_y + stridey * height;
picture_cb = picture_cr + stridey / 2 * height / 2;
} else {
picture_cb = picture_y + stridey * height;
picture_cr = picture_cb + stridey / 2 * height / 2;
}
if (dev->devtype->product == CODA_960) {
/*
* The CODA960 seems to have an internal list of buffers with
* 64 entries that includes the registered frame buffers as
* well as the rotator buffer output.
* ROT_INDEX needs to be < 0x40, but > ctx->num_internal_frames.
*/
coda_write(dev, CODA_MAX_FRAMEBUFFERS + dst_buf->v4l2_buf.index,
CODA9_CMD_DEC_PIC_ROT_INDEX);
coda_write(dev, picture_y, CODA9_CMD_DEC_PIC_ROT_ADDR_Y);
coda_write(dev, picture_cb, CODA9_CMD_DEC_PIC_ROT_ADDR_CB);
coda_write(dev, picture_cr, CODA9_CMD_DEC_PIC_ROT_ADDR_CR);
coda_write(dev, stridey, CODA9_CMD_DEC_PIC_ROT_STRIDE);
} else {
coda_write(dev, picture_y, CODA_CMD_DEC_PIC_ROT_ADDR_Y);
coda_write(dev, picture_cb, CODA_CMD_DEC_PIC_ROT_ADDR_CB);
coda_write(dev, picture_cr, CODA_CMD_DEC_PIC_ROT_ADDR_CR);
coda_write(dev, stridey, CODA_CMD_DEC_PIC_ROT_STRIDE);
}
coda_write(dev, CODA_ROT_MIR_ENABLE | ctx->params.rot_mode,
CODA_CMD_DEC_PIC_ROT_MODE);
switch (dev->devtype->product) {
case CODA_DX6:
/* TBD */
case CODA_7541:
coda_write(dev, CODA_PRE_SCAN_EN, CODA_CMD_DEC_PIC_OPTION);
break;
case CODA_960:
coda_write(dev, (1 << 10), CODA_CMD_DEC_PIC_OPTION); /* 'hardcode to use interrupt disable mode'? */
break;
}
coda_write(dev, 0, CODA_CMD_DEC_PIC_SKIP_NUM);
coda_write(dev, 0, CODA_CMD_DEC_PIC_BB_START);
coda_write(dev, 0, CODA_CMD_DEC_PIC_START_BYTE);
return 0;
}
static int coda_prepare_encode(struct coda_ctx *ctx)
{
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->fh.m2m_ctx);
dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.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->osequence;
dst_buf->v4l2_buf.sequence = ctx->osequence;
ctx->osequence++;
/*
* 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;
}
if (dev->devtype->product == CODA_960)
coda_set_gdi_regs(ctx);
/*
* 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->bytesperline *
q_data_src->height;
picture_cb = picture_cr + q_data_src->bytesperline / 2 *
q_data_src->height / 2;
break;
case V4L2_PIX_FMT_YUV420:
default:
picture_cb = picture_y + q_data_src->bytesperline *
q_data_src->height;
picture_cr = picture_cb + q_data_src->bytesperline / 2 *
q_data_src->height / 2;
break;
}
if (dev->devtype->product == CODA_960) {
coda_write(dev, 4/*FIXME: 0*/, CODA9_CMD_ENC_PIC_SRC_INDEX);
coda_write(dev, q_data_src->width, CODA9_CMD_ENC_PIC_SRC_STRIDE);
coda_write(dev, 0, CODA9_CMD_ENC_PIC_SUB_FRAME_SYNC);
coda_write(dev, picture_y, CODA9_CMD_ENC_PIC_SRC_ADDR_Y);
coda_write(dev, picture_cb, CODA9_CMD_ENC_PIC_SRC_ADDR_CB);
coda_write(dev, picture_cr, CODA9_CMD_ENC_PIC_SRC_ADDR_CR);
} else {
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 (!ctx->streamon_out) {
/* After streamoff on the output side, set the stream end flag */
ctx->bit_stream_param |= CODA_BIT_STREAM_END_FLAG;
coda_write(dev, ctx->bit_stream_param, CODA_REG_BIT_BIT_STREAM_PARAM);
}
return 0;
}
static void coda_device_run(void *m2m_priv)
{
struct coda_ctx *ctx = m2m_priv;
struct coda_dev *dev = ctx->dev;
queue_work(dev->workqueue, &ctx->pic_run_work);
}
static void coda_free_framebuffers(struct coda_ctx *ctx);
static void coda_free_context_buffers(struct coda_ctx *ctx);
static void coda_seq_end_work(struct work_struct *work)
{
struct coda_ctx *ctx = container_of(work, struct coda_ctx, seq_end_work);
struct coda_dev *dev = ctx->dev;
mutex_lock(&ctx->buffer_mutex);
mutex_lock(&dev->coda_mutex);
v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
"%d: %s: sent command 'SEQ_END' to coda\n", ctx->idx, __func__);
if (coda_command_sync(ctx, CODA_COMMAND_SEQ_END)) {
v4l2_err(&dev->v4l2_dev,
"CODA_COMMAND_SEQ_END failed\n");
}
kfifo_init(&ctx->bitstream_fifo,
ctx->bitstream.vaddr, ctx->bitstream.size);
coda_free_framebuffers(ctx);
coda_free_context_buffers(ctx);
mutex_unlock(&dev->coda_mutex);
mutex_unlock(&ctx->buffer_mutex);
}
static void coda_finish_decode(struct coda_ctx *ctx);
static void coda_finish_encode(struct coda_ctx *ctx);
static void coda_pic_run_work(struct work_struct *work)
{
struct coda_ctx *ctx = container_of(work, struct coda_ctx, pic_run_work);
struct coda_dev *dev = ctx->dev;
int ret;
mutex_lock(&ctx->buffer_mutex);
mutex_lock(&dev->coda_mutex);
ret = ctx->ops->prepare_run(ctx);
if (ret < 0 && ctx->inst_type == CODA_INST_DECODER) {
mutex_unlock(&dev->coda_mutex);
mutex_unlock(&ctx->buffer_mutex);
/* job_finish scheduled by prepare_decode */
return;
}
if (dev->devtype->product != CODA_DX6)
coda_write(dev, ctx->iram_info.axi_sram_use,
CODA7_REG_BIT_AXI_SRAM_USE);
if (ctx->inst_type == CODA_INST_DECODER)
coda_kfifo_sync_to_device_full(ctx);
coda_command_async(ctx, CODA_COMMAND_PIC_RUN);
if (!wait_for_completion_timeout(&ctx->completion, msecs_to_jiffies(1000))) {
dev_err(&dev->plat_dev->dev, "CODA PIC_RUN timeout\n");
ctx->hold = true;
coda_hw_reset(ctx);
} else if (!ctx->aborting) {
ctx->ops->finish_run(ctx);
}
if (ctx->aborting || (!ctx->streamon_cap && !ctx->streamon_out))
queue_work(dev->workqueue, &ctx->seq_end_work);
mutex_unlock(&dev->coda_mutex);
mutex_unlock(&ctx->buffer_mutex);
v4l2_m2m_job_finish(ctx->dev->m2m_dev, ctx->fh.m2m_ctx);
}
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. In the decoder case,
* the compressed frame can be in the bitstream.
*/
if (!v4l2_m2m_num_src_bufs_ready(ctx->fh.m2m_ctx) &&
ctx->inst_type != CODA_INST_DECODER) {
v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
"not ready: not enough video buffers.\n");
return 0;
}
if (!v4l2_m2m_num_dst_bufs_ready(ctx->fh.m2m_ctx)) {
v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
"not ready: not enough video capture buffers.\n");
return 0;
}
if (ctx->hold ||
((ctx->inst_type == CODA_INST_DECODER) &&
(coda_get_bitstream_payload(ctx) < 512) &&
!(ctx->bit_stream_param & CODA_BIT_STREAM_END_FLAG))) {
v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
"%d: not ready: not enough bitstream data.\n",
ctx->idx);
return 0;
}
if (ctx->aborting) {
v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
"not ready: aborting\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;
ctx->aborting = 1;
v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
"Aborting task\n");
}
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 const 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 coda_set_tiled_map_type(struct coda_ctx *ctx, int tiled_map_type)
{
struct gdi_tiled_map *tiled_map = &ctx->tiled_map;
int luma_map, chro_map, i;
memset(tiled_map, 0, sizeof(*tiled_map));
luma_map = 64;
chro_map = 64;
tiled_map->map_type = tiled_map_type;
for (i = 0; i < 16; i++)
tiled_map->xy2ca_map[i] = luma_map << 8 | chro_map;
for (i = 0; i < 4; i++)
tiled_map->xy2ba_map[i] = luma_map << 8 | chro_map;
for (i = 0; i < 16; i++)
tiled_map->xy2ra_map[i] = luma_map << 8 | chro_map;
if (tiled_map_type == GDI_LINEAR_FRAME_MAP) {
tiled_map->xy2rbc_config = 0;
} else {
dev_err(&ctx->dev->plat_dev->dev, "invalid map type: %d\n",
tiled_map_type);
return;
}
}
static void set_default_params(struct coda_ctx *ctx)
{
u32 src_fourcc, dst_fourcc;
int max_w;
int max_h;
if (ctx->inst_type == CODA_INST_ENCODER) {
src_fourcc = V4L2_PIX_FMT_YUV420;
dst_fourcc = V4L2_PIX_FMT_H264;
} else {
src_fourcc = V4L2_PIX_FMT_H264;
dst_fourcc = V4L2_PIX_FMT_YUV420;
}
ctx->codec = coda_find_codec(ctx->dev, src_fourcc, dst_fourcc);
max_w = ctx->codec->max_w;
max_h = ctx->codec->max_h;
ctx->params.codec_mode = ctx->codec->mode;
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_DST].width = max_w;
ctx->q_data[V4L2_M2M_DST].height = max_h;
if (ctx->codec->src_fourcc == V4L2_PIX_FMT_YUV420) {
ctx->q_data[V4L2_M2M_SRC].bytesperline = max_w;
ctx->q_data[V4L2_M2M_SRC].sizeimage = (max_w * max_h * 3) / 2;
ctx->q_data[V4L2_M2M_DST].bytesperline = 0;
ctx->q_data[V4L2_M2M_DST].sizeimage = CODA_MAX_FRAME_SIZE;
} else {
ctx->q_data[V4L2_M2M_SRC].bytesperline = 0;
ctx->q_data[V4L2_M2M_SRC].sizeimage = CODA_MAX_FRAME_SIZE;
ctx->q_data[V4L2_M2M_DST].bytesperline = max_w;
ctx->q_data[V4L2_M2M_DST].sizeimage = (max_w * max_h * 3) / 2;
}
ctx->q_data[V4L2_M2M_SRC].rect.width = max_w;
ctx->q_data[V4L2_M2M_SRC].rect.height = max_h;
ctx->q_data[V4L2_M2M_DST].rect.width = max_w;
ctx->q_data[V4L2_M2M_DST].rect.height = max_h;
if (ctx->dev->devtype->product == CODA_960)
coda_set_tiled_map_type(ctx, GDI_LINEAR_FRAME_MAP);
}
/*
* 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);
struct coda_dev *dev = ctx->dev;
struct coda_q_data *q_data;
q_data = get_q_data(ctx, vb->vb2_queue->type);
/*
* In the decoder case, immediately try to copy the buffer into the
* bitstream ringbuffer and mark it as ready to be dequeued.
*/
if (q_data->fourcc == V4L2_PIX_FMT_H264 &&
vb->vb2_queue->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
/*
* For backwards compatibility, queuing an empty buffer marks
* the stream end
*/
if (vb2_get_plane_payload(vb, 0) == 0) {
ctx->bit_stream_param |= CODA_BIT_STREAM_END_FLAG;
if ((dev->devtype->product == CODA_960) &&
coda_isbusy(dev) &&
(ctx->idx == coda_read(dev, CODA_REG_BIT_RUN_INDEX))) {
/* if this decoder instance is running, set the stream end flag */
coda_write(dev, ctx->bit_stream_param, CODA_REG_BIT_BIT_STREAM_PARAM);
}
}
mutex_lock(&ctx->bitstream_mutex);
v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vb);
if (vb2_is_streaming(vb->vb2_queue))
coda_fill_bitstream(ctx);
mutex_unlock(&ctx->bitstream_mutex);
} else {
v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vb);
}
}
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_aux_buf(struct coda_dev *dev,
struct coda_aux_buf *buf, size_t size,
const char *name, struct dentry *parent)
{
buf->vaddr = dma_alloc_coherent(&dev->plat_dev->dev, size, &buf->paddr,
GFP_KERNEL);
if (!buf->vaddr)
return -ENOMEM;
buf->size = size;
if (name && parent) {
buf->blob.data = buf->vaddr;
buf->blob.size = size;
buf->dentry = debugfs_create_blob(name, 0644, parent, &buf->blob);
if (!buf->dentry)
dev_warn(&dev->plat_dev->dev,
"failed to create debugfs entry %s\n", name);
}
return 0;
}
static inline int coda_alloc_context_buf(struct coda_ctx *ctx,
struct coda_aux_buf *buf, size_t size,
const char *name)
{
return coda_alloc_aux_buf(ctx->dev, buf, size, name, ctx->debugfs_entry);
}
static void coda_free_aux_buf(struct coda_dev *dev,
struct coda_aux_buf *buf)
{
if (buf->vaddr) {
dma_free_coherent(&dev->plat_dev->dev, buf->size,
buf->vaddr, buf->paddr);
buf->vaddr = NULL;
buf->size = 0;
}
debugfs_remove(buf->dentry);
}
static void coda_free_framebuffers(struct coda_ctx *ctx)
{
int i;
for (i = 0; i < CODA_MAX_FRAMEBUFFERS; i++)
coda_free_aux_buf(ctx->dev, &ctx->internal_frames[i]);
}
static int coda_alloc_framebuffers(struct coda_ctx *ctx, struct coda_q_data *q_data, u32 fourcc)
{
struct coda_dev *dev = ctx->dev;
int width, height;
dma_addr_t paddr;
int ysize;
int ret;
int i;
if (ctx->codec && (ctx->codec->src_fourcc == V4L2_PIX_FMT_H264 ||
ctx->codec->dst_fourcc == V4L2_PIX_FMT_H264)) {
width = round_up(q_data->width, 16);
height = round_up(q_data->height, 16);
} else {
width = round_up(q_data->width, 8);
height = q_data->height;
}
ysize = width * height;
/* Allocate frame buffers */
for (i = 0; i < ctx->num_internal_frames; i++) {
size_t size;
char *name;
size = ysize + ysize / 2;
if (ctx->codec->src_fourcc == V4L2_PIX_FMT_H264 &&
dev->devtype->product != CODA_DX6)
size += ysize / 4;
name = kasprintf(GFP_KERNEL, "fb%d", i);
ret = coda_alloc_context_buf(ctx, &ctx->internal_frames[i],
size, name);
kfree(name);
if (ret < 0) {
coda_free_framebuffers(ctx);
return ret;
}
}
/* 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 */
/* mvcol buffer for h.264 */
if (ctx->codec->src_fourcc == V4L2_PIX_FMT_H264 &&
dev->devtype->product != CODA_DX6)
coda_parabuf_write(ctx, 96 + i,
ctx->internal_frames[i].paddr +
ysize + ysize/4 + ysize/4);
}
/* mvcol buffer for mpeg4 */
if ((dev->devtype->product != CODA_DX6) &&
(ctx->codec->src_fourcc == V4L2_PIX_FMT_MPEG4))
coda_parabuf_write(ctx, 97, 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 phys_addr_t coda_iram_alloc(struct coda_iram_info *iram, size_t size)
{
phys_addr_t ret;
size = round_up(size, 1024);
if (size > iram->remaining)
return 0;
iram->remaining -= size;
ret = iram->next_paddr;
iram->next_paddr += size;
return ret;
}
static void coda_setup_iram(struct coda_ctx *ctx)
{
struct coda_iram_info *iram_info = &ctx->iram_info;
struct coda_dev *dev = ctx->dev;
int mb_width;
int dbk_bits;
int bit_bits;
int ip_bits;
memset(iram_info, 0, sizeof(*iram_info));
iram_info->next_paddr = dev->iram.paddr;
iram_info->remaining = dev->iram.size;
switch (dev->devtype->product) {
case CODA_7541:
dbk_bits = CODA7_USE_HOST_DBK_ENABLE | CODA7_USE_DBK_ENABLE;
bit_bits = CODA7_USE_HOST_BIT_ENABLE | CODA7_USE_BIT_ENABLE;
ip_bits = CODA7_USE_HOST_IP_ENABLE | CODA7_USE_IP_ENABLE;
break;
case CODA_960:
dbk_bits = CODA9_USE_HOST_DBK_ENABLE | CODA9_USE_DBK_ENABLE;
bit_bits = CODA9_USE_HOST_BIT_ENABLE | CODA7_USE_BIT_ENABLE;
ip_bits = CODA9_USE_HOST_IP_ENABLE | CODA7_USE_IP_ENABLE;
break;
default: /* CODA_DX6 */
return;
}
if (ctx->inst_type == CODA_INST_ENCODER) {
struct coda_q_data *q_data_src;
q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
mb_width = DIV_ROUND_UP(q_data_src->width, 16);
/* Prioritize in case IRAM is too small for everything */
if (dev->devtype->product == CODA_7541) {
iram_info->search_ram_size = round_up(mb_width * 16 *
36 + 2048, 1024);
iram_info->search_ram_paddr = coda_iram_alloc(iram_info,
iram_info->search_ram_size);
if (!iram_info->search_ram_paddr) {
pr_err("IRAM is smaller than the search ram size\n");
goto out;
}
iram_info->axi_sram_use |= CODA7_USE_HOST_ME_ENABLE |
CODA7_USE_ME_ENABLE;
}
/* Only H.264BP and H.263P3 are considered */
iram_info->buf_dbk_y_use = coda_iram_alloc(iram_info, 64 * mb_width);
iram_info->buf_dbk_c_use = coda_iram_alloc(iram_info, 64 * mb_width);
if (!iram_info->buf_dbk_c_use)
goto out;
iram_info->axi_sram_use |= dbk_bits;
iram_info->buf_bit_use = coda_iram_alloc(iram_info, 128 * mb_width);
if (!iram_info->buf_bit_use)
goto out;
iram_info->axi_sram_use |= bit_bits;
iram_info->buf_ip_ac_dc_use = coda_iram_alloc(iram_info, 128 * mb_width);
if (!iram_info->buf_ip_ac_dc_use)
goto out;
iram_info->axi_sram_use |= ip_bits;
/* OVL and BTP disabled for encoder */
} else if (ctx->inst_type == CODA_INST_DECODER) {
struct coda_q_data *q_data_dst;
q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
mb_width = DIV_ROUND_UP(q_data_dst->width, 16);
iram_info->buf_dbk_y_use = coda_iram_alloc(iram_info, 128 * mb_width);
iram_info->buf_dbk_c_use = coda_iram_alloc(iram_info, 128 * mb_width);
if (!iram_info->buf_dbk_c_use)
goto out;
iram_info->axi_sram_use |= dbk_bits;
iram_info->buf_bit_use = coda_iram_alloc(iram_info, 128 * mb_width);
if (!iram_info->buf_bit_use)
goto out;
iram_info->axi_sram_use |= bit_bits;
iram_info->buf_ip_ac_dc_use = coda_iram_alloc(iram_info, 128 * mb_width);
if (!iram_info->buf_ip_ac_dc_use)
goto out;
iram_info->axi_sram_use |= ip_bits;
/* OVL and BTP unused as there is no VC1 support yet */
}
out:
if (!(iram_info->axi_sram_use & CODA7_USE_HOST_IP_ENABLE))
v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
"IRAM smaller than needed\n");
if (dev->devtype->product == CODA_7541) {
/* TODO - Enabling these causes picture errors on CODA7541 */
if (ctx->inst_type == CODA_INST_DECODER) {
/* fw 1.4.50 */
iram_info->axi_sram_use &= ~(CODA7_USE_HOST_IP_ENABLE |
CODA7_USE_IP_ENABLE);
} else {
/* fw 13.4.29 */
iram_info->axi_sram_use &= ~(CODA7_USE_HOST_IP_ENABLE |
CODA7_USE_HOST_DBK_ENABLE |
CODA7_USE_IP_ENABLE |
CODA7_USE_DBK_ENABLE);
}
}
}
static void coda_free_context_buffers(struct coda_ctx *ctx)
{
struct coda_dev *dev = ctx->dev;
coda_free_aux_buf(dev, &ctx->slicebuf);
coda_free_aux_buf(dev, &ctx->psbuf);
if (dev->devtype->product != CODA_DX6)
coda_free_aux_buf(dev, &ctx->workbuf);
}
static int coda_alloc_context_buffers(struct coda_ctx *ctx,
struct coda_q_data *q_data)
{
struct coda_dev *dev = ctx->dev;
size_t size;
int ret;
if (dev->devtype->product == CODA_DX6)
return 0;
if (ctx->psbuf.vaddr) {
v4l2_err(&dev->v4l2_dev, "psmembuf still allocated\n");
return -EBUSY;
}
if (ctx->slicebuf.vaddr) {
v4l2_err(&dev->v4l2_dev, "slicebuf still allocated\n");
return -EBUSY;
}
if (ctx->workbuf.vaddr) {
v4l2_err(&dev->v4l2_dev, "context buffer still allocated\n");
ret = -EBUSY;
return -ENOMEM;
}
if (q_data->fourcc == V4L2_PIX_FMT_H264) {
/* worst case slice size */
size = (DIV_ROUND_UP(q_data->width, 16) *
DIV_ROUND_UP(q_data->height, 16)) * 3200 / 8 + 512;
ret = coda_alloc_context_buf(ctx, &ctx->slicebuf, size, "slicebuf");
if (ret < 0) {
v4l2_err(&dev->v4l2_dev, "failed to allocate %d byte slice buffer",
ctx->slicebuf.size);
return ret;
}
}
if (dev->devtype->product == CODA_7541) {
ret = coda_alloc_context_buf(ctx, &ctx->psbuf, CODA7_PS_BUF_SIZE, "psbuf");
if (ret < 0) {
v4l2_err(&dev->v4l2_dev, "failed to allocate psmem buffer");
goto err;
}
}
size = dev->devtype->workbuf_size;
if (dev->devtype->product == CODA_960 &&
q_data->fourcc == V4L2_PIX_FMT_H264)
size += CODA9_PS_SAVE_SIZE;
ret = coda_alloc_context_buf(ctx, &ctx->workbuf, size, "workbuf");
if (ret < 0) {
v4l2_err(&dev->v4l2_dev, "failed to allocate %d byte context buffer",
ctx->workbuf.size);
goto err;
}
return 0;
err:
coda_free_context_buffers(ctx);
return ret;
}
static int __coda_start_decoding(struct coda_ctx *ctx)
{
struct coda_q_data *q_data_src, *q_data_dst;
u32 bitstream_buf, bitstream_size;
struct coda_dev *dev = ctx->dev;
int width, height;
u32 src_fourcc;
u32 val;
int ret;
/* Start decoding */
q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
bitstream_buf = ctx->bitstream.paddr;
bitstream_size = ctx->bitstream.size;
src_fourcc = q_data_src->fourcc;
coda_write(dev, ctx->parabuf.paddr, CODA_REG_BIT_PARA_BUF_ADDR);
/* Update coda bitstream read and write pointers from kfifo */
coda_kfifo_sync_to_device_full(ctx);
ctx->display_idx = -1;
ctx->frm_dis_flg = 0;
coda_write(dev, 0, CODA_REG_BIT_FRM_DIS_FLG(ctx->reg_idx));
coda_write(dev, CODA_BIT_DEC_SEQ_INIT_ESCAPE,
CODA_REG_BIT_BIT_STREAM_PARAM);
coda_write(dev, bitstream_buf, CODA_CMD_DEC_SEQ_BB_START);
coda_write(dev, bitstream_size / 1024, CODA_CMD_DEC_SEQ_BB_SIZE);
val = 0;
if ((dev->devtype->product == CODA_7541) ||
(dev->devtype->product == CODA_960))
val |= CODA_REORDER_ENABLE;
coda_write(dev, val, CODA_CMD_DEC_SEQ_OPTION);
ctx->params.codec_mode = ctx->codec->mode;
if (dev->devtype->product == CODA_960 &&
src_fourcc == V4L2_PIX_FMT_MPEG4)
ctx->params.codec_mode_aux = CODA_MP4_AUX_MPEG4;
else
ctx->params.codec_mode_aux = 0;
if (src_fourcc == V4L2_PIX_FMT_H264) {
if (dev->devtype->product == CODA_7541) {
coda_write(dev, ctx->psbuf.paddr,
CODA_CMD_DEC_SEQ_PS_BB_START);
coda_write(dev, (CODA7_PS_BUF_SIZE / 1024),
CODA_CMD_DEC_SEQ_PS_BB_SIZE);
}
if (dev->devtype->product == CODA_960) {
coda_write(dev, 0, CODA_CMD_DEC_SEQ_X264_MV_EN);
coda_write(dev, 512, CODA_CMD_DEC_SEQ_SPP_CHUNK_SIZE);
}
}
if (dev->devtype->product != CODA_960) {
coda_write(dev, 0, CODA_CMD_DEC_SEQ_SRC_SIZE);
}
if (coda_command_sync(ctx, CODA_COMMAND_SEQ_INIT)) {
v4l2_err(&dev->v4l2_dev, "CODA_COMMAND_SEQ_INIT timeout\n");
coda_write(dev, 0, CODA_REG_BIT_BIT_STREAM_PARAM);
return -ETIMEDOUT;
}
/* Update kfifo out pointer from coda bitstream read pointer */
coda_kfifo_sync_from_device(ctx);
coda_write(dev, 0, CODA_REG_BIT_BIT_STREAM_PARAM);
if (coda_read(dev, CODA_RET_DEC_SEQ_SUCCESS) == 0) {
v4l2_err(&dev->v4l2_dev,
"CODA_COMMAND_SEQ_INIT failed, error code = %d\n",
coda_read(dev, CODA_RET_DEC_SEQ_ERR_REASON));
return -EAGAIN;
}
val = coda_read(dev, CODA_RET_DEC_SEQ_SRC_SIZE);
if (dev->devtype->product == CODA_DX6) {
width = (val >> CODADX6_PICWIDTH_OFFSET) & CODADX6_PICWIDTH_MASK;
height = val & CODADX6_PICHEIGHT_MASK;
} else {
width = (val >> CODA7_PICWIDTH_OFFSET) & CODA7_PICWIDTH_MASK;
height = val & CODA7_PICHEIGHT_MASK;
}
if (width > q_data_dst->width || height > q_data_dst->height) {
v4l2_err(&dev->v4l2_dev, "stream is %dx%d, not %dx%d\n",
width, height, q_data_dst->width, q_data_dst->height);
return -EINVAL;
}
width = round_up(width, 16);
height = round_up(height, 16);
v4l2_dbg(1, coda_debug, &dev->v4l2_dev, "%s instance %d now: %dx%d\n",
__func__, ctx->idx, width, height);
ctx->num_internal_frames = coda_read(dev, CODA_RET_DEC_SEQ_FRAME_NEED);
if (ctx->num_internal_frames > CODA_MAX_FRAMEBUFFERS) {
v4l2_err(&dev->v4l2_dev,
"not enough framebuffers to decode (%d < %d)\n",
CODA_MAX_FRAMEBUFFERS, ctx->num_internal_frames);
return -EINVAL;
}
if (src_fourcc == V4L2_PIX_FMT_H264) {
u32 left_right;
u32 top_bottom;
left_right = coda_read(dev, CODA_RET_DEC_SEQ_CROP_LEFT_RIGHT);
top_bottom = coda_read(dev, CODA_RET_DEC_SEQ_CROP_TOP_BOTTOM);
q_data_dst->rect.left = (left_right >> 10) & 0x3ff;
q_data_dst->rect.top = (top_bottom >> 10) & 0x3ff;
q_data_dst->rect.width = width - q_data_dst->rect.left -
(left_right & 0x3ff);
q_data_dst->rect.height = height - q_data_dst->rect.top -
(top_bottom & 0x3ff);
}
ret = coda_alloc_framebuffers(ctx, q_data_dst, src_fourcc);
if (ret < 0)
return ret;
/* Tell the decoder how many frame buffers we allocated. */
coda_write(dev, ctx->num_internal_frames, CODA_CMD_SET_FRAME_BUF_NUM);
coda_write(dev, width, CODA_CMD_SET_FRAME_BUF_STRIDE);
if (dev->devtype->product != CODA_DX6) {
/* Set secondary AXI IRAM */
coda_setup_iram(ctx);
coda_write(dev, ctx->iram_info.buf_bit_use,
CODA7_CMD_SET_FRAME_AXI_BIT_ADDR);
coda_write(dev, ctx->iram_info.buf_ip_ac_dc_use,
CODA7_CMD_SET_FRAME_AXI_IPACDC_ADDR);
coda_write(dev, ctx->iram_info.buf_dbk_y_use,
CODA7_CMD_SET_FRAME_AXI_DBKY_ADDR);
coda_write(dev, ctx->iram_info.buf_dbk_c_use,
CODA7_CMD_SET_FRAME_AXI_DBKC_ADDR);
coda_write(dev, ctx->iram_info.buf_ovl_use,
CODA7_CMD_SET_FRAME_AXI_OVL_ADDR);
if (dev->devtype->product == CODA_960)
coda_write(dev, ctx->iram_info.buf_btp_use,
CODA9_CMD_SET_FRAME_AXI_BTP_ADDR);
}
if (dev->devtype->product == CODA_960) {
coda_write(dev, -1, CODA9_CMD_SET_FRAME_DELAY);
coda_write(dev, 0x20262024, CODA9_CMD_SET_FRAME_CACHE_SIZE);
coda_write(dev, 2 << CODA9_CACHE_PAGEMERGE_OFFSET |
32 << CODA9_CACHE_LUMA_BUFFER_SIZE_OFFSET |
8 << CODA9_CACHE_CB_BUFFER_SIZE_OFFSET |
8 << CODA9_CACHE_CR_BUFFER_SIZE_OFFSET,
CODA9_CMD_SET_FRAME_CACHE_CONFIG);
}
if (src_fourcc == V4L2_PIX_FMT_H264) {
coda_write(dev, ctx->slicebuf.paddr,
CODA_CMD_SET_FRAME_SLICE_BB_START);
coda_write(dev, ctx->slicebuf.size / 1024,
CODA_CMD_SET_FRAME_SLICE_BB_SIZE);
}
if (dev->devtype->product == CODA_7541) {
int max_mb_x = 1920 / 16;
int max_mb_y = 1088 / 16;
int max_mb_num = max_mb_x * max_mb_y;
coda_write(dev, max_mb_num << 16 | max_mb_x << 8 | max_mb_y,
CODA7_CMD_SET_FRAME_MAX_DEC_SIZE);
} else if (dev->devtype->product == CODA_960) {
int max_mb_x = 1920 / 16;
int max_mb_y = 1088 / 16;
int max_mb_num = max_mb_x * max_mb_y;
coda_write(dev, max_mb_num << 16 | max_mb_x << 8 | max_mb_y,
CODA9_CMD_SET_FRAME_MAX_DEC_SIZE);
}
if (coda_command_sync(ctx, CODA_COMMAND_SET_FRAME_BUF)) {
v4l2_err(&ctx->dev->v4l2_dev,
"CODA_COMMAND_SET_FRAME_BUF timeout\n");
return -ETIMEDOUT;
}
return 0;
}
static int coda_start_decoding(struct coda_ctx *ctx)
{
struct coda_dev *dev = ctx->dev;
int ret;
mutex_lock(&dev->coda_mutex);
ret = __coda_start_decoding(ctx);
mutex_unlock(&dev->coda_mutex);
return ret;
}
static int coda_encode_header(struct coda_ctx *ctx, struct vb2_buffer *buf,
int header_code, u8 *header, int *size)
{
struct coda_dev *dev = ctx->dev;
size_t bufsize;
int ret;
int i;
if (dev->devtype->product == CODA_960)
memset(vb2_plane_vaddr(buf, 0), 0, 64);
coda_write(dev, vb2_dma_contig_plane_dma_addr(buf, 0),
CODA_CMD_ENC_HEADER_BB_START);
bufsize = vb2_plane_size(buf, 0);
if (dev->devtype->product == CODA_960)
bufsize /= 1024;
coda_write(dev, bufsize, CODA_CMD_ENC_HEADER_BB_SIZE);
coda_write(dev, header_code, CODA_CMD_ENC_HEADER_CODE);
ret = coda_command_sync(ctx, CODA_COMMAND_ENCODE_HEADER);
if (ret < 0) {
v4l2_err(&dev->v4l2_dev, "CODA_COMMAND_ENCODE_HEADER timeout\n");
return ret;
}
if (dev->devtype->product == CODA_960) {
for (i = 63; i > 0; i--)
if (((char *)vb2_plane_vaddr(buf, 0))[i] != 0)
break;
*size = i + 1;
} else {
*size = coda_read(dev, CODA_REG_BIT_WR_PTR(ctx->reg_idx)) -
coda_read(dev, CODA_CMD_ENC_HEADER_BB_START);
}
memcpy(header, vb2_plane_vaddr(buf, 0), *size);
return 0;
}
static int coda_start_encoding(struct coda_ctx *ctx);
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;
struct coda_q_data *q_data_src, *q_data_dst;
u32 dst_fourcc;
int ret = 0;
q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
if (q_data_src->fourcc == V4L2_PIX_FMT_H264) {
/* copy the buffers that where queued before streamon */
mutex_lock(&ctx->bitstream_mutex);
coda_fill_bitstream(ctx);
mutex_unlock(&ctx->bitstream_mutex);
if (coda_get_bitstream_payload(ctx) < 512)
return -EINVAL;
} else {
if (count < 1)
return -EINVAL;
}
ctx->streamon_out = 1;
} else {
if (count < 1)
return -EINVAL;
ctx->streamon_cap = 1;
}
/* Don't start the coda unless both queues are on */
if (!(ctx->streamon_out & ctx->streamon_cap))
return 0;
/* Allow decoder device_run with no new buffers queued */
if (ctx->inst_type == CODA_INST_DECODER)
v4l2_m2m_set_src_buffered(ctx->fh.m2m_ctx, true);
ctx->gopcounter = ctx->params.gop_size - 1;
q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
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;
}
/* Allocate per-instance buffers */
ret = coda_alloc_context_buffers(ctx, q_data_src);
if (ret < 0)
return ret;
ret = ctx->ops->start_streaming(ctx);
if (ctx->inst_type == CODA_INST_DECODER) {
if (ret == -EAGAIN)
return 0;
else if (ret < 0)
return ret;
}
ctx->initialized = 1;
return ret;
}
static int coda_start_encoding(struct coda_ctx *ctx)
{
struct coda_dev *dev = ctx->dev;
struct v4l2_device *v4l2_dev = &dev->v4l2_dev;
struct coda_q_data *q_data_src, *q_data_dst;
u32 bitstream_buf, bitstream_size;
struct vb2_buffer *buf;
int gamma, ret, value;
u32 dst_fourcc;
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;
buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
bitstream_buf = vb2_dma_contig_plane_dma_addr(buf, 0);
bitstream_size = q_data_dst->sizeimage;
if (!coda_is_initialized(dev)) {
v4l2_err(v4l2_dev, "coda is not initialized.\n");
return -EFAULT;
}
mutex_lock(&dev->coda_mutex);
coda_write(dev, ctx->parabuf.paddr, CODA_REG_BIT_PARA_BUF_ADDR);
coda_write(dev, bitstream_buf, CODA_REG_BIT_RD_PTR(ctx->reg_idx));
coda_write(dev, bitstream_buf, CODA_REG_BIT_WR_PTR(ctx->reg_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;
case CODA_960:
coda_write(dev, 0, CODA9_GDI_WPROT_RGN_EN);
/* fallthrough */
case CODA_7541:
coda_write(dev, CODA7_STREAM_BUF_DYNALLOC_EN |
CODA7_STREAM_BUF_PIC_RESET, CODA_REG_BIT_STREAM_CTRL);
break;
}
value = coda_read(dev, CODA_REG_BIT_FRAME_MEM_CTRL);
value &= ~(1 << 2 | 0x7 << 9);
ctx->frame_mem_ctrl = value;
coda_write(dev, value, CODA_REG_BIT_FRAME_MEM_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;
case CODA_7541:
if (dst_fourcc == V4L2_PIX_FMT_H264) {
value = (round_up(q_data_src->width, 16) &
CODA7_PICWIDTH_MASK) << CODA7_PICWIDTH_OFFSET;
value |= (round_up(q_data_src->height, 16) &
CODA7_PICHEIGHT_MASK) << CODA_PICHEIGHT_OFFSET;
break;
}
/* fallthrough */
case CODA_960:
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:
if (dev->devtype->product == CODA_960)
coda_write(dev, CODA9_STD_MPEG4, CODA_CMD_ENC_SEQ_COD_STD);
else
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:
if (dev->devtype->product == CODA_960)
coda_write(dev, CODA9_STD_H264, CODA_CMD_ENC_SEQ_COD_STD);
else
coda_write(dev, CODA_STD_H264, CODA_CMD_ENC_SEQ_COD_STD);
if (ctx->params.h264_deblk_enabled) {
value = ((ctx->params.h264_deblk_alpha &
CODA_264PARAM_DEBLKFILTEROFFSETALPHA_MASK) <<
CODA_264PARAM_DEBLKFILTEROFFSETALPHA_OFFSET) |
((ctx->params.h264_deblk_beta &
CODA_264PARAM_DEBLKFILTEROFFSETBETA_MASK) <<
CODA_264PARAM_DEBLKFILTEROFFSETBETA_OFFSET);
} else {
value = 1 << CODA_264PARAM_DISABLEDEBLK_OFFSET;
}
coda_write(dev, value, CODA_CMD_ENC_SEQ_264_PARA);
break;
default:
v4l2_err(v4l2_dev,
"dst format (0x%08x) invalid.\n", dst_fourcc);
ret = -EINVAL;
goto out;
}
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;
if (dev->devtype->product == CODA_960)
value |= BIT(31); /* disable autoskip */
} 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, ctx->params.intra_refresh,
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);
value = 0;
if (dev->devtype->product == CODA_960)
gamma = CODA9_DEFAULT_GAMMA;
else
gamma = CODA_DEFAULT_GAMMA;
if (gamma > 0) {
coda_write(dev, (gamma & CODA_GAMMA_MASK) << CODA_GAMMA_OFFSET,
CODA_CMD_ENC_SEQ_RC_GAMMA);
}
if (ctx->params.h264_min_qp || ctx->params.h264_max_qp) {
coda_write(dev,
ctx->params.h264_min_qp << CODA_QPMIN_OFFSET |
ctx->params.h264_max_qp << CODA_QPMAX_OFFSET,
CODA_CMD_ENC_SEQ_RC_QP_MIN_MAX);
}
if (dev->devtype->product == CODA_960) {
if (ctx->params.h264_max_qp)
value |= 1 << CODA9_OPTION_RCQPMAX_OFFSET;
if (CODA_DEFAULT_GAMMA > 0)
value |= 1 << CODA9_OPTION_GAMMA_OFFSET;
} else {
if (CODA_DEFAULT_GAMMA > 0) {
if (dev->devtype->product == CODA_DX6)
value |= 1 << CODADX6_OPTION_GAMMA_OFFSET;
else
value |= 1 << CODA7_OPTION_GAMMA_OFFSET;
}
if (ctx->params.h264_min_qp)
value |= 1 << CODA7_OPTION_RCQPMIN_OFFSET;
if (ctx->params.h264_max_qp)
value |= 1 << CODA7_OPTION_RCQPMAX_OFFSET;
}
coda_write(dev, value, CODA_CMD_ENC_SEQ_OPTION);
coda_write(dev, 0, CODA_CMD_ENC_SEQ_RC_INTERVAL_MODE);
coda_setup_iram(ctx);
if (dst_fourcc == V4L2_PIX_FMT_H264) {
switch (dev->devtype->product) {
case CODA_DX6:
value = FMO_SLICE_SAVE_BUF_SIZE << 7;
coda_write(dev, value, CODADX6_CMD_ENC_SEQ_FMO);
break;
case CODA_7541:
coda_write(dev, ctx->iram_info.search_ram_paddr,
CODA7_CMD_ENC_SEQ_SEARCH_BASE);
coda_write(dev, ctx->iram_info.search_ram_size,
CODA7_CMD_ENC_SEQ_SEARCH_SIZE);
break;
case CODA_960:
coda_write(dev, 0, CODA9_CMD_ENC_SEQ_ME_OPTION);
coda_write(dev, 0, CODA9_CMD_ENC_SEQ_INTRA_WEIGHT);
}
}
ret = coda_command_sync(ctx, CODA_COMMAND_SEQ_INIT);
if (ret < 0) {
v4l2_err(v4l2_dev, "CODA_COMMAND_SEQ_INIT timeout\n");
goto out;
}
if (coda_read(dev, CODA_RET_ENC_SEQ_SUCCESS) == 0) {
v4l2_err(v4l2_dev, "CODA_COMMAND_SEQ_INIT failed\n");
ret = -EFAULT;
goto out;
}
if (dev->devtype->product == CODA_960)
ctx->num_internal_frames = 4;
else
ctx->num_internal_frames = 2;
ret = coda_alloc_framebuffers(ctx, q_data_src, dst_fourcc);
if (ret < 0) {
v4l2_err(v4l2_dev, "failed to allocate framebuffers\n");
goto out;
}
coda_write(dev, ctx->num_internal_frames, CODA_CMD_SET_FRAME_BUF_NUM);
coda_write(dev, q_data_src->bytesperline,
CODA_CMD_SET_FRAME_BUF_STRIDE);
if (dev->devtype->product == CODA_7541) {
coda_write(dev, q_data_src->bytesperline,
CODA7_CMD_SET_FRAME_SOURCE_BUF_STRIDE);
}
if (dev->devtype->product != CODA_DX6) {
coda_write(dev, ctx->iram_info.buf_bit_use,
CODA7_CMD_SET_FRAME_AXI_BIT_ADDR);
coda_write(dev, ctx->iram_info.buf_ip_ac_dc_use,
CODA7_CMD_SET_FRAME_AXI_IPACDC_ADDR);
coda_write(dev, ctx->iram_info.buf_dbk_y_use,
CODA7_CMD_SET_FRAME_AXI_DBKY_ADDR);
coda_write(dev, ctx->iram_info.buf_dbk_c_use,
CODA7_CMD_SET_FRAME_AXI_DBKC_ADDR);
coda_write(dev, ctx->iram_info.buf_ovl_use,
CODA7_CMD_SET_FRAME_AXI_OVL_ADDR);
if (dev->devtype->product == CODA_960) {
coda_write(dev, ctx->iram_info.buf_btp_use,
CODA9_CMD_SET_FRAME_AXI_BTP_ADDR);
/* FIXME */
coda_write(dev, ctx->internal_frames[2].paddr, CODA9_CMD_SET_FRAME_SUBSAMP_A);
coda_write(dev, ctx->internal_frames[3].paddr, CODA9_CMD_SET_FRAME_SUBSAMP_B);
}
}
ret = coda_command_sync(ctx, CODA_COMMAND_SET_FRAME_BUF);
if (ret < 0) {
v4l2_err(v4l2_dev, "CODA_COMMAND_SET_FRAME_BUF timeout\n");
goto out;
}
/* Save stream headers */
buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
switch (dst_fourcc) {
case V4L2_PIX_FMT_H264:
/*
* Get SPS in the first frame and copy it to an
* intermediate buffer.
*/
ret = coda_encode_header(ctx, buf, CODA_HEADER_H264_SPS,
&ctx->vpu_header[0][0],
&ctx->vpu_header_size[0]);
if (ret < 0)
goto out;
/*
* Get PPS in the first frame and copy it to an
* intermediate buffer.
*/
ret = coda_encode_header(ctx, buf, CODA_HEADER_H264_PPS,
&ctx->vpu_header[1][0],
&ctx->vpu_header_size[1]);
if (ret < 0)
goto out;
/*
* 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
*/
ret = coda_encode_header(ctx, buf, CODA_HEADER_MP4V_VOS,
&ctx->vpu_header[0][0],
&ctx->vpu_header_size[0]);
if (ret < 0)
goto out;
ret = coda_encode_header(ctx, buf, CODA_HEADER_MP4V_VIS,
&ctx->vpu_header[1][0],
&ctx->vpu_header_size[1]);
if (ret < 0)
goto out;
ret = coda_encode_header(ctx, buf, CODA_HEADER_MP4V_VOL,
&ctx->vpu_header[2][0],
&ctx->vpu_header_size[2]);
if (ret < 0)
goto out;
break;
default:
/* No more formats need to save headers at the moment */
break;
}
out:
mutex_unlock(&dev->coda_mutex);
return ret;
}
static void 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, &dev->v4l2_dev,
"%s: output\n", __func__);
ctx->streamon_out = 0;
if (ctx->inst_type == CODA_INST_DECODER &&
coda_isbusy(dev) && ctx->idx == coda_read(dev, CODA_REG_BIT_RUN_INDEX)) {
/* if this decoder instance is running, set the stream end flag */
if (dev->devtype->product == CODA_960) {
u32 val = coda_read(dev, CODA_REG_BIT_BIT_STREAM_PARAM);
val |= CODA_BIT_STREAM_END_FLAG;
coda_write(dev, val, CODA_REG_BIT_BIT_STREAM_PARAM);
ctx->bit_stream_param = val;
}
}
ctx->bit_stream_param |= CODA_BIT_STREAM_END_FLAG;
ctx->isequence = 0;
} else {
v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
"%s: capture\n", __func__);
ctx->streamon_cap = 0;
ctx->osequence = 0;
ctx->sequence_offset = 0;
}
if (!ctx->streamon_out && !ctx->streamon_cap) {
struct coda_timestamp *ts;
while (!list_empty(&ctx->timestamp_list)) {
ts = list_first_entry(&ctx->timestamp_list,
struct coda_timestamp, list);
list_del(&ts->list);
kfree(ts);
}
kfifo_init(&ctx->bitstream_fifo,
ctx->bitstream.vaddr, ctx->bitstream.size);
ctx->runcounter = 0;
}
}
static const struct vb2_ops coda_qops = {
.queue_setup = coda_queue_setup,
.buf_prepare = coda_buf_prepare,
.buf_queue = coda_buf_queue,
.start_streaming = coda_start_streaming,
.stop_streaming = coda_stop_streaming,
.wait_prepare = vb2_ops_wait_prepare,
.wait_finish = vb2_ops_wait_finish,
};
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_H264_MIN_QP:
ctx->params.h264_min_qp = ctrl->val;
break;
case V4L2_CID_MPEG_VIDEO_H264_MAX_QP:
ctx->params.h264_max_qp = ctrl->val;
break;
case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_ALPHA:
ctx->params.h264_deblk_alpha = ctrl->val;
break;
case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_BETA:
ctx->params.h264_deblk_beta = ctrl->val;
break;
case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE:
ctx->params.h264_deblk_enabled = (ctrl->val ==
V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_ENABLED);
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;
case V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB:
ctx->params.intra_refresh = ctrl->val;
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 const 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, 0, 51, 1, 25);
v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP, 0, 51, 1, 25);
if (ctx->dev->devtype->product != CODA_960) {
v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
V4L2_CID_MPEG_VIDEO_H264_MIN_QP, 0, 51, 1, 12);
}
v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
V4L2_CID_MPEG_VIDEO_H264_MAX_QP, 0, 51, 1, 51);
v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_ALPHA, 0, 15, 1, 0);
v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_BETA, 0, 15, 1, 0);
v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE,
V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_DISABLED, 0x0,
V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_ENABLED);
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);
v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB, 0, 1920 * 1088 / 256, 1, 0);
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(struct coda_ctx *ctx, struct vb2_queue *vq)
{
vq->drv_priv = ctx;
vq->ops = &coda_qops;
vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
vq->lock = &ctx->dev->dev_mutex;
return vb2_queue_init(vq);
}
static int coda_encoder_queue_init(void *priv, struct vb2_queue *src_vq,
struct vb2_queue *dst_vq)
{
int ret;
src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
src_vq->io_modes = VB2_DMABUF | VB2_MMAP;
src_vq->mem_ops = &vb2_dma_contig_memops;
ret = coda_queue_init(priv, src_vq);
if (ret)
return ret;
dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
dst_vq->io_modes = VB2_DMABUF | VB2_MMAP;
dst_vq->mem_ops = &vb2_dma_contig_memops;
return coda_queue_init(priv, dst_vq);
}
static int coda_decoder_queue_init(void *priv, struct vb2_queue *src_vq,
struct vb2_queue *dst_vq)
{
int ret;
src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
src_vq->io_modes = VB2_DMABUF | VB2_MMAP;
src_vq->mem_ops = &vb2_dma_contig_memops;
ret = coda_queue_init(priv, src_vq);
if (ret)
return ret;
dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
dst_vq->io_modes = VB2_DMABUF | VB2_MMAP;
dst_vq->mem_ops = &vb2_dma_contig_memops;
return coda_queue_init(priv, dst_vq);
}
static int coda_next_free_instance(struct coda_dev *dev)
{
int idx = ffz(dev->instance_mask);
if ((idx < 0) ||
(dev->devtype->product == CODA_DX6 && idx > CODADX6_MAX_INSTANCES))
return -EBUSY;
return idx;
}
static int coda_open(struct file *file, enum coda_inst_type inst_type,
const struct coda_context_ops *ctx_ops)
{
struct coda_dev *dev = video_drvdata(file);
struct coda_ctx *ctx = NULL;
char *name;
int ret;
int idx;
ctx = kzalloc(sizeof *ctx, GFP_KERNEL);
if (!ctx)
return -ENOMEM;
idx = coda_next_free_instance(dev);
if (idx < 0) {
ret = idx;
goto err_coda_max;
}
set_bit(idx, &dev->instance_mask);
name = kasprintf(GFP_KERNEL, "context%d", idx);
ctx->debugfs_entry = debugfs_create_dir(name, dev->debugfs_root);
kfree(name);
ctx->inst_type = inst_type;
ctx->ops = ctx_ops;
init_completion(&ctx->completion);
INIT_WORK(&ctx->pic_run_work, coda_pic_run_work);
INIT_WORK(&ctx->seq_end_work, ctx->ops->seq_end_work);
v4l2_fh_init(&ctx->fh, video_devdata(file));
file->private_data = &ctx->fh;
v4l2_fh_add(&ctx->fh);
ctx->dev = dev;
ctx->idx = idx;
switch (dev->devtype->product) {
case CODA_7541:
case CODA_960:
ctx->reg_idx = 0;
break;
default:
ctx->reg_idx = idx;
}
/* Power up and upload firmware if necessary */
ret = pm_runtime_get_sync(&dev->plat_dev->dev);
if (ret < 0) {
v4l2_err(&dev->v4l2_dev, "failed to power up: %d\n", ret);
goto err_pm_get;
}
ret = clk_prepare_enable(dev->clk_per);
if (ret)
goto err_clk_per;
ret = clk_prepare_enable(dev->clk_ahb);
if (ret)
goto err_clk_ahb;
set_default_params(ctx);
ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev, ctx,
ctx->ops->queue_init);
if (IS_ERR(ctx->fh.m2m_ctx)) {
ret = PTR_ERR(ctx->fh.m2m_ctx);
v4l2_err(&dev->v4l2_dev, "%s return error (%d)\n",
__func__, ret);
goto err_ctx_init;
}
ret = coda_ctrls_setup(ctx);
if (ret) {
v4l2_err(&dev->v4l2_dev, "failed to setup coda controls\n");
goto err_ctrls_setup;
}
ctx->fh.ctrl_handler = &ctx->ctrls;
ret = coda_alloc_context_buf(ctx, &ctx->parabuf, CODA_PARA_BUF_SIZE,
"parabuf");
if (ret < 0) {
v4l2_err(&dev->v4l2_dev, "failed to allocate parabuf");
goto err_dma_alloc;
}
ctx->bitstream.size = CODA_MAX_FRAME_SIZE;
ctx->bitstream.vaddr = dma_alloc_writecombine(&dev->plat_dev->dev,
ctx->bitstream.size, &ctx->bitstream.paddr, GFP_KERNEL);
if (!ctx->bitstream.vaddr) {
v4l2_err(&dev->v4l2_dev, "failed to allocate bitstream ringbuffer");
ret = -ENOMEM;
goto err_dma_writecombine;
}
kfifo_init(&ctx->bitstream_fifo,
ctx->bitstream.vaddr, ctx->bitstream.size);
mutex_init(&ctx->bitstream_mutex);
mutex_init(&ctx->buffer_mutex);
INIT_LIST_HEAD(&ctx->timestamp_list);
coda_lock(ctx);
list_add(&ctx->list, &dev->instances);
coda_unlock(ctx);
v4l2_dbg(1, coda_debug, &dev->v4l2_dev, "Created instance %d (%p)\n",
ctx->idx, ctx);
return 0;
err_dma_writecombine:
coda_free_context_buffers(ctx);
if (ctx->dev->devtype->product == CODA_DX6)
coda_free_aux_buf(dev, &ctx->workbuf);
coda_free_aux_buf(dev, &ctx->parabuf);
err_dma_alloc:
v4l2_ctrl_handler_free(&ctx->ctrls);
err_ctrls_setup:
v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
err_ctx_init:
clk_disable_unprepare(dev->clk_ahb);
err_clk_ahb:
clk_disable_unprepare(dev->clk_per);
err_clk_per:
pm_runtime_put_sync(&dev->plat_dev->dev);
err_pm_get:
v4l2_fh_del(&ctx->fh);
v4l2_fh_exit(&ctx->fh);
clear_bit(ctx->idx, &dev->instance_mask);
err_coda_max:
kfree(ctx);
return ret;
}
struct coda_context_ops coda_encode_ops = {
.queue_init = coda_encoder_queue_init,
.start_streaming = coda_start_encoding,
.prepare_run = coda_prepare_encode,
.finish_run = coda_finish_encode,
.seq_end_work = coda_seq_end_work,
};
struct coda_context_ops coda_decode_ops = {
.queue_init = coda_decoder_queue_init,
.start_streaming = coda_start_decoding,
.prepare_run = coda_prepare_decode,
.finish_run = coda_finish_decode,
.seq_end_work = coda_seq_end_work
};
static int coda_encoder_open(struct file *file)
{
return coda_open(file, CODA_INST_ENCODER, &coda_encode_ops);
}
static int coda_decoder_open(struct file *file)
{
return coda_open(file, CODA_INST_DECODER, &coda_decode_ops);
}
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);
debugfs_remove_recursive(ctx->debugfs_entry);
/* If this instance is running, call .job_abort and wait for it to end */
v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
/* In case the instance was not running, we still need to call SEQ_END */
if (ctx->initialized) {
queue_work(dev->workqueue, &ctx->seq_end_work);
flush_work(&ctx->seq_end_work);
}
coda_free_framebuffers(ctx);
coda_lock(ctx);
list_del(&ctx->list);
coda_unlock(ctx);
dma_free_writecombine(&dev->plat_dev->dev, ctx->bitstream.size,
ctx->bitstream.vaddr, ctx->bitstream.paddr);
coda_free_context_buffers(ctx);
if (ctx->dev->devtype->product == CODA_DX6)
coda_free_aux_buf(dev, &ctx->workbuf);
coda_free_aux_buf(dev, &ctx->parabuf);
v4l2_ctrl_handler_free(&ctx->ctrls);
clk_disable_unprepare(dev->clk_ahb);
clk_disable_unprepare(dev->clk_per);
pm_runtime_put_sync(&dev->plat_dev->dev);
v4l2_fh_del(&ctx->fh);
v4l2_fh_exit(&ctx->fh);
clear_bit(ctx->idx, &dev->instance_mask);
kfree(ctx);
return 0;
}
static const struct v4l2_file_operations coda_encoder_fops = {
.owner = THIS_MODULE,
.open = coda_encoder_open,
.release = coda_release,
.poll = v4l2_m2m_fop_poll,
.unlocked_ioctl = video_ioctl2,
.mmap = v4l2_m2m_fop_mmap,
};
static const struct v4l2_file_operations coda_decoder_fops = {
.owner = THIS_MODULE,
.open = coda_decoder_open,
.release = coda_release,
.poll = v4l2_m2m_fop_poll,
.unlocked_ioctl = video_ioctl2,
.mmap = v4l2_m2m_fop_mmap,
};
static void coda_finish_decode(struct coda_ctx *ctx)
{
struct coda_dev *dev = ctx->dev;
struct coda_q_data *q_data_src;
struct coda_q_data *q_data_dst;
struct vb2_buffer *dst_buf;
struct coda_timestamp *ts;
int width, height;
int decoded_idx;
int display_idx;
u32 src_fourcc;
int success;
u32 err_mb;
u32 val;
dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
/* Update kfifo out pointer from coda bitstream read pointer */
coda_kfifo_sync_from_device(ctx);
/*
* in stream-end mode, the read pointer can overshoot the write pointer
* by up to 512 bytes
*/
if (ctx->bit_stream_param & CODA_BIT_STREAM_END_FLAG) {
if (coda_get_bitstream_payload(ctx) >= CODA_MAX_FRAME_SIZE - 512)
kfifo_init(&ctx->bitstream_fifo,
ctx->bitstream.vaddr, ctx->bitstream.size);
}
q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
src_fourcc = q_data_src->fourcc;
val = coda_read(dev, CODA_RET_DEC_PIC_SUCCESS);
if (val != 1)
pr_err("DEC_PIC_SUCCESS = %d\n", val);
success = val & 0x1;
if (!success)
v4l2_err(&dev->v4l2_dev, "decode failed\n");
if (src_fourcc == V4L2_PIX_FMT_H264) {
if (val & (1 << 3))
v4l2_err(&dev->v4l2_dev,
"insufficient PS buffer space (%d bytes)\n",
ctx->psbuf.size);
if (val & (1 << 2))
v4l2_err(&dev->v4l2_dev,
"insufficient slice buffer space (%d bytes)\n",
ctx->slicebuf.size);
}
val = coda_read(dev, CODA_RET_DEC_PIC_SIZE);
width = (val >> 16) & 0xffff;
height = val & 0xffff;
q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
/* frame crop information */
if (src_fourcc == V4L2_PIX_FMT_H264) {
u32 left_right;
u32 top_bottom;
left_right = coda_read(dev, CODA_RET_DEC_PIC_CROP_LEFT_RIGHT);
top_bottom = coda_read(dev, CODA_RET_DEC_PIC_CROP_TOP_BOTTOM);
if (left_right == 0xffffffff && top_bottom == 0xffffffff) {
/* Keep current crop information */
} else {
struct v4l2_rect *rect = &q_data_dst->rect;
rect->left = left_right >> 16 & 0xffff;
rect->top = top_bottom >> 16 & 0xffff;
rect->width = width - rect->left -
(left_right & 0xffff);
rect->height = height - rect->top -
(top_bottom & 0xffff);
}
} else {
/* no cropping */
}
err_mb = coda_read(dev, CODA_RET_DEC_PIC_ERR_MB);
if (err_mb > 0)
v4l2_err(&dev->v4l2_dev,
"errors in %d macroblocks\n", err_mb);
if (dev->devtype->product == CODA_7541) {
val = coda_read(dev, CODA_RET_DEC_PIC_OPTION);
if (val == 0) {
/* not enough bitstream data */
v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
"prescan failed: %d\n", val);
ctx->hold = true;
return;
}
}
ctx->frm_dis_flg = coda_read(dev, CODA_REG_BIT_FRM_DIS_FLG(ctx->reg_idx));
/*
* The previous display frame was copied out by the rotator,
* now it can be overwritten again
*/
if (ctx->display_idx >= 0 &&
ctx->display_idx < ctx->num_internal_frames) {
ctx->frm_dis_flg &= ~(1 << ctx->display_idx);
coda_write(dev, ctx->frm_dis_flg,
CODA_REG_BIT_FRM_DIS_FLG(ctx->reg_idx));
}
/*
* The index of the last decoded frame, not necessarily in
* display order, and the index of the next display frame.
* The latter could have been decoded in a previous run.
*/
decoded_idx = coda_read(dev, CODA_RET_DEC_PIC_CUR_IDX);
display_idx = coda_read(dev, CODA_RET_DEC_PIC_FRAME_IDX);
if (decoded_idx == -1) {
/* no frame was decoded, but we might have a display frame */
if (display_idx >= 0 && display_idx < ctx->num_internal_frames)
ctx->sequence_offset++;
else if (ctx->display_idx < 0)
ctx->hold = true;
} else if (decoded_idx == -2) {
/* no frame was decoded, we still return the remaining buffers */
} else if (decoded_idx < 0 || decoded_idx >= ctx->num_internal_frames) {
v4l2_err(&dev->v4l2_dev,
"decoded frame index out of range: %d\n", decoded_idx);
} else {
ts = list_first_entry(&ctx->timestamp_list,
struct coda_timestamp, list);
list_del(&ts->list);
val = coda_read(dev, CODA_RET_DEC_PIC_FRAME_NUM) - 1;
val -= ctx->sequence_offset;
if (val != (ts->sequence & 0xffff)) {
v4l2_err(&dev->v4l2_dev,
"sequence number mismatch (%d(%d) != %d)\n",
val, ctx->sequence_offset, ts->sequence);
}
ctx->frame_timestamps[decoded_idx] = *ts;
kfree(ts);
val = coda_read(dev, CODA_RET_DEC_PIC_TYPE) & 0x7;
if (val == 0)
ctx->frame_types[decoded_idx] = V4L2_BUF_FLAG_KEYFRAME;
else if (val == 1)
ctx->frame_types[decoded_idx] = V4L2_BUF_FLAG_PFRAME;
else
ctx->frame_types[decoded_idx] = V4L2_BUF_FLAG_BFRAME;
ctx->frame_errors[decoded_idx] = err_mb;
}
if (display_idx == -1) {
/*
* no more frames to be decoded, but there could still
* be rotator output to dequeue
*/
ctx->hold = true;
} else if (display_idx == -3) {
/* possibly prescan failure */
} else if (display_idx < 0 || display_idx >= ctx->num_internal_frames) {
v4l2_err(&dev->v4l2_dev,
"presentation frame index out of range: %d\n",
display_idx);
}
/* If a frame was copied out, return it */
if (ctx->display_idx >= 0 &&
ctx->display_idx < ctx->num_internal_frames) {
dst_buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
dst_buf->v4l2_buf.sequence = ctx->osequence++;
dst_buf->v4l2_buf.flags &= ~(V4L2_BUF_FLAG_KEYFRAME |
V4L2_BUF_FLAG_PFRAME |
V4L2_BUF_FLAG_BFRAME);
dst_buf->v4l2_buf.flags |= ctx->frame_types[ctx->display_idx];
ts = &ctx->frame_timestamps[ctx->display_idx];
dst_buf->v4l2_buf.timecode = ts->timecode;
dst_buf->v4l2_buf.timestamp = ts->timestamp;
vb2_set_plane_payload(dst_buf, 0, width * height * 3 / 2);
v4l2_m2m_buf_done(dst_buf, ctx->frame_errors[display_idx] ?
VB2_BUF_STATE_ERROR : VB2_BUF_STATE_DONE);
v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
"job finished: decoding frame (%d) (%s)\n",
dst_buf->v4l2_buf.sequence,
(dst_buf->v4l2_buf.flags & V4L2_BUF_FLAG_KEYFRAME) ?
"KEYFRAME" : "PFRAME");
} else {
v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
"job finished: no frame decoded\n");
}
/* The rotator will copy the current display frame next time */
ctx->display_idx = display_idx;
}
static void coda_finish_encode(struct coda_ctx *ctx)
{
struct vb2_buffer *src_buf, *dst_buf;
struct coda_dev *dev = ctx->dev;
u32 wr_ptr, start_ptr;
src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
/* Get results from the coda */
start_ptr = coda_read(dev, CODA_CMD_ENC_PIC_BB_START);
wr_ptr = coda_read(dev, CODA_REG_BIT_WR_PTR(ctx->reg_idx));
/* Calculate bytesused field */
if (dst_buf->v4l2_buf.sequence == 0) {
vb2_set_plane_payload(dst_buf, 0, wr_ptr - start_ptr +
ctx->vpu_header_size[0] +
ctx->vpu_header_size[1] +
ctx->vpu_header_size[2]);
} else {
vb2_set_plane_payload(dst_buf, 0, 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 (coda_read(dev, CODA_RET_ENC_PIC_TYPE) == 0) {
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.flags &= ~V4L2_BUF_FLAG_TSTAMP_SRC_MASK;
dst_buf->v4l2_buf.flags |=
src_buf->v4l2_buf.flags & V4L2_BUF_FLAG_TSTAMP_SRC_MASK;
dst_buf->v4l2_buf.timecode = src_buf->v4l2_buf.timecode;
v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_DONE);
dst_buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
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");
}
static irqreturn_t coda_irq_handler(int irq, void *data)
{
struct coda_dev *dev = data;
struct coda_ctx *ctx;
/* 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");
mutex_unlock(&dev->coda_mutex);
return IRQ_HANDLED;
}
if (ctx->aborting) {
v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
"task has been aborted\n");
}
if (coda_isbusy(ctx->dev)) {
v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
"coda is still busy!!!!\n");
return IRQ_NONE;
}
complete(&ctx->completion);
return IRQ_HANDLED;
}
static u32 coda_supported_firmwares[] = {
CODA_FIRMWARE_VERNUM(CODA_DX6, 2, 2, 5),
CODA_FIRMWARE_VERNUM(CODA_7541, 1, 4, 50),
CODA_FIRMWARE_VERNUM(CODA_960, 2, 1, 5),
};
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 int coda_hw_init(struct coda_dev *dev)
{
u32 data;
u16 *p;
int i, ret;
ret = clk_prepare_enable(dev->clk_per);
if (ret)
goto err_clk_per;
ret = clk_prepare_enable(dev->clk_ahb);
if (ret)
goto err_clk_ahb;
if (dev->rstc)
reset_control_reset(dev->rstc);
/*
* 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 */
if (dev->devtype->product == CODA_960 ||
dev->devtype->product == CODA_7541) {
coda_write(dev, dev->tempbuf.paddr,
CODA_REG_BIT_TEMP_BUF_ADDR);
coda_write(dev, 0, CODA_REG_BIT_BIT_STREAM_PARAM);
} else {
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);
}
if (dev->devtype->product == CODA_960)
coda_write(dev, 1 << 12, CODA_REG_BIT_FRAME_MEM_CTRL);
else
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);
clk_disable_unprepare(dev->clk_ahb);
clk_disable_unprepare(dev->clk_per);
return 0;
err_clk_ahb:
clk_disable_unprepare(dev->clk_per);
err_clk_per:
return ret;
}
static int coda_check_firmware(struct coda_dev *dev)
{
u16 product, major, minor, release;
u32 data;
int ret;
ret = clk_prepare_enable(dev->clk_per);
if (ret)
goto err_clk_per;
ret = clk_prepare_enable(dev->clk_ahb);
if (ret)
goto err_clk_ahb;
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)) {
v4l2_err(&dev->v4l2_dev, "firmware get command error\n");
ret = -EIO;
goto err_run_cmd;
}
if (dev->devtype->product == CODA_960) {
data = coda_read(dev, CODA9_CMD_FIRMWARE_CODE_REV);
v4l2_info(&dev->v4l2_dev, "Firmware code revision: %d\n",
data);
}
/* 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;
err_run_cmd:
clk_disable_unprepare(dev->clk_ahb);
err_clk_ahb:
clk_disable_unprepare(dev->clk_per);
err_clk_per:
return ret;
}
static int coda_register_device(struct coda_dev *dev, struct video_device *vfd)
{
vfd->release = video_device_release_empty,
vfd->lock = &dev->dev_mutex;
vfd->v4l2_dev = &dev->v4l2_dev;
vfd->vfl_dir = VFL_DIR_M2M;
video_set_drvdata(vfd, dev);
return video_register_device(vfd, VFL_TYPE_GRABBER, 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 */
ret = coda_alloc_aux_buf(dev, &dev->codebuf, fw->size, "codebuf",
dev->debugfs_root);
if (ret < 0) {
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);
if (pm_runtime_enabled(&pdev->dev) && pdev->dev.pm_domain) {
/*
* Enabling power temporarily will cause coda_hw_init to be
* called via coda_runtime_resume by the pm domain.
*/
ret = pm_runtime_get_sync(&dev->plat_dev->dev);
if (ret < 0) {
v4l2_err(&dev->v4l2_dev, "failed to power on: %d\n",
ret);
return;
}
ret = coda_check_firmware(dev);
if (ret < 0)
return;
pm_runtime_put_sync(&dev->plat_dev->dev);
} else {
/*
* If runtime pm is disabled or pm_domain is not set,
* initialize once manually.
*/
ret = coda_hw_init(dev);
if (ret < 0) {
v4l2_err(&dev->v4l2_dev, "HW initialization failed\n");
return;
}
ret = coda_check_firmware(dev);
if (ret < 0)
return;
}
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;
}
dev->vfd[0].fops = &coda_encoder_fops,
dev->vfd[0].ioctl_ops = &coda_ioctl_ops;
snprintf(dev->vfd[0].name, sizeof(dev->vfd[0].name), "coda-encoder");
ret = coda_register_device(dev, &dev->vfd[0]);
if (ret) {
v4l2_err(&dev->v4l2_dev,
"Failed to register encoder video device\n");
goto rel_m2m;
}
dev->vfd[1].fops = &coda_decoder_fops,
dev->vfd[1].ioctl_ops = &coda_ioctl_ops;
snprintf(dev->vfd[1].name, sizeof(dev->vfd[1].name), "coda-decoder");
ret = coda_register_device(dev, &dev->vfd[1]);
if (ret) {
v4l2_err(&dev->v4l2_dev,
"Failed to register decoder video device\n");
goto rel_m2m;
}
v4l2_info(&dev->v4l2_dev, "codec registered as /dev/video[%d-%d]\n",
dev->vfd[0].num, dev->vfd[1].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,
CODA_IMX6Q,
CODA_IMX6DL,
};
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),
.workbuf_size = 288 * 1024 + FMO_SLICE_SAVE_BUF_SIZE * 8 * 1024,
.iram_size = 0xb000,
},
[CODA_IMX53] = {
.firmware = "v4l-coda7541-imx53.bin",
.product = CODA_7541,
.codecs = coda7_codecs,
.num_codecs = ARRAY_SIZE(coda7_codecs),
.workbuf_size = 128 * 1024,
.tempbuf_size = 304 * 1024,
.iram_size = 0x14000,
},
[CODA_IMX6Q] = {
.firmware = "v4l-coda960-imx6q.bin",
.product = CODA_960,
.codecs = coda9_codecs,
.num_codecs = ARRAY_SIZE(coda9_codecs),
.workbuf_size = 80 * 1024,
.tempbuf_size = 204 * 1024,
.iram_size = 0x21000,
},
[CODA_IMX6DL] = {
.firmware = "v4l-coda960-imx6dl.bin",
.product = CODA_960,
.codecs = coda9_codecs,
.num_codecs = ARRAY_SIZE(coda9_codecs),
.workbuf_size = 80 * 1024,
.tempbuf_size = 204 * 1024,
.iram_size = 0x20000,
},
};
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_devdata[CODA_IMX27] },
{ .compatible = "fsl,imx53-vpu", .data = &coda_devdata[CODA_IMX53] },
{ .compatible = "fsl,imx6q-vpu", .data = &coda_devdata[CODA_IMX6Q] },
{ .compatible = "fsl,imx6dl-vpu", .data = &coda_devdata[CODA_IMX6DL] },
{ /* 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);
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);
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 irq;
}
ret = devm_request_threaded_irq(&pdev->dev, irq, NULL, coda_irq_handler,
IRQF_ONESHOT, dev_name(&pdev->dev), dev);
if (ret < 0) {
dev_err(&pdev->dev, "failed to request irq: %d\n", ret);
return ret;
}
dev->rstc = devm_reset_control_get_optional(&pdev->dev, NULL);
if (IS_ERR(dev->rstc)) {
ret = PTR_ERR(dev->rstc);
if (ret == -ENOENT || ret == -ENOSYS) {
dev->rstc = NULL;
} else {
dev_err(&pdev->dev, "failed get reset control: %d\n", ret);
return ret;
}
}
/* 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);
mutex_init(&dev->coda_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;
}
dev->debugfs_root = debugfs_create_dir("coda", NULL);
if (!dev->debugfs_root)
dev_warn(&pdev->dev, "failed to create debugfs root\n");
/* allocate auxiliary per-device buffers for the BIT processor */
if (dev->devtype->product == CODA_DX6) {
ret = coda_alloc_aux_buf(dev, &dev->workbuf,
dev->devtype->workbuf_size, "workbuf",
dev->debugfs_root);
if (ret < 0) {
dev_err(&pdev->dev, "failed to allocate work buffer\n");
v4l2_device_unregister(&dev->v4l2_dev);
return ret;
}
}
if (dev->devtype->tempbuf_size) {
ret = coda_alloc_aux_buf(dev, &dev->tempbuf,
dev->devtype->tempbuf_size, "tempbuf",
dev->debugfs_root);
if (ret < 0) {
dev_err(&pdev->dev, "failed to allocate temp buffer\n");
v4l2_device_unregister(&dev->v4l2_dev);
return ret;
}
}
dev->iram.size = dev->devtype->iram_size;
dev->iram.vaddr = gen_pool_dma_alloc(dev->iram_pool, dev->iram.size,
&dev->iram.paddr);
if (!dev->iram.vaddr) {
dev_err(&pdev->dev, "unable to alloc iram\n");
return -ENOMEM;
}
dev->iram.blob.data = dev->iram.vaddr;
dev->iram.blob.size = dev->iram.size;
dev->iram.dentry = debugfs_create_blob("iram", 0644, dev->debugfs_root,
&dev->iram.blob);
dev->workqueue = alloc_workqueue("coda", WQ_UNBOUND | WQ_MEM_RECLAIM, 1);
if (!dev->workqueue) {
dev_err(&pdev->dev, "unable to alloc workqueue\n");
return -ENOMEM;
}
platform_set_drvdata(pdev, dev);
pm_runtime_enable(&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[0]);
video_unregister_device(&dev->vfd[1]);
if (dev->m2m_dev)
v4l2_m2m_release(dev->m2m_dev);
pm_runtime_disable(&pdev->dev);
if (dev->alloc_ctx)
vb2_dma_contig_cleanup_ctx(dev->alloc_ctx);
v4l2_device_unregister(&dev->v4l2_dev);
destroy_workqueue(dev->workqueue);
if (dev->iram.vaddr)
gen_pool_free(dev->iram_pool, (unsigned long)dev->iram.vaddr,
dev->iram.size);
coda_free_aux_buf(dev, &dev->codebuf);
coda_free_aux_buf(dev, &dev->tempbuf);
coda_free_aux_buf(dev, &dev->workbuf);
debugfs_remove_recursive(dev->debugfs_root);
return 0;
}
#ifdef CONFIG_PM_RUNTIME
static int coda_runtime_resume(struct device *dev)
{
struct coda_dev *cdev = dev_get_drvdata(dev);
int ret = 0;
if (dev->pm_domain && cdev->codebuf.vaddr) {
ret = coda_hw_init(cdev);
if (ret)
v4l2_err(&cdev->v4l2_dev, "HW initialization failed\n");
}
return ret;
}
#endif
static const struct dev_pm_ops coda_pm_ops = {
SET_RUNTIME_PM_OPS(NULL, coda_runtime_resume, NULL)
};
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),
.pm = &coda_pm_ops,
},
.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");
Reference in New Issue View Git Blame Copy Permalink