// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) STMicroelectronics SA 2013
* Author: Hugues Fruchet <hugues.fruchet@st.com> for STMicroelectronics.
*/
#include <linux/slab.h>
#include "delta.h"
#include "delta-ipc.h"
#include "delta-mjpeg.h"
#include "delta-mjpeg-fw.h"
#define DELTA_MJPEG_MAX_RESO DELTA_MAX_RESO
struct delta_mjpeg_ctx {
/* jpeg header */
struct mjpeg_header header_struct;
struct mjpeg_header *header;
/* ipc */
void *ipc_hdl;
struct delta_buf *ipc_buf;
/* decoded output frame */
struct delta_frame *out_frame;
unsigned char str[3000];
};
#define to_ctx(ctx) ((struct delta_mjpeg_ctx *)(ctx)->priv)
static char *ipc_open_param_str(struct jpeg_video_decode_init_params_t *p,
char *str, unsigned int len)
{
char *b = str;
if (!p)
return "";
b += snprintf(b, len,
"jpeg_video_decode_init_params_t\n"
"circular_buffer_begin_addr_p 0x%x\n"
"circular_buffer_end_addr_p 0x%x\n",
p->circular_buffer_begin_addr_p,
p->circular_buffer_end_addr_p);
return str;
}
static char *ipc_decode_param_str(struct jpeg_decode_params_t *p,
char *str, unsigned int len)
{
char *b = str;
if (!p)
return "";
b += snprintf(b, len,
"jpeg_decode_params_t\n"
"picture_start_addr_p 0x%x\n"
"picture_end_addr_p 0x%x\n"
"decoding_mode %d\n"
"display_buffer_addr.display_decimated_luma_p 0x%x\n"
"display_buffer_addr.display_decimated_chroma_p 0x%x\n"
"main_aux_enable %d\n"
"additional_flags 0x%x\n"
"field_flag %x\n"
"is_jpeg_image %x\n",
p->picture_start_addr_p,
p->picture_end_addr_p,
p->decoding_mode,
p->display_buffer_addr.display_decimated_luma_p,
p->display_buffer_addr.display_decimated_chroma_p,
p->main_aux_enable, p->additional_flags,
p->field_flag,
p->is_jpeg_image);
return str;
}
static inline bool is_stream_error(enum jpeg_decoding_error_t err)
{
switch (err) {
case JPEG_DECODER_UNDEFINED_HUFF_TABLE:
case JPEG_DECODER_BAD_RESTART_MARKER:
case JPEG_DECODER_BAD_SOS_SPECTRAL:
case JPEG_DECODER_BAD_SOS_SUCCESSIVE:
case JPEG_DECODER_BAD_HEADER_LENGTH:
case JPEG_DECODER_BAD_COUNT_VALUE:
case JPEG_DECODER_BAD_DHT_MARKER:
case JPEG_DECODER_BAD_INDEX_VALUE:
case JPEG_DECODER_BAD_NUMBER_HUFFMAN_TABLES:
case JPEG_DECODER_BAD_QUANT_TABLE_LENGTH:
case JPEG_DECODER_BAD_NUMBER_QUANT_TABLES:
case JPEG_DECODER_BAD_COMPONENT_COUNT:
return true;
default:
return false;
}
}
static inline const char *err_str(enum jpeg_decoding_error_t err)
{
switch (err) {
case JPEG_DECODER_NO_ERROR:
return "JPEG_DECODER_NO_ERROR";
case JPEG_DECODER_UNDEFINED_HUFF_TABLE:
return "JPEG_DECODER_UNDEFINED_HUFF_TABLE";
case JPEG_DECODER_UNSUPPORTED_MARKER:
return "JPEG_DECODER_UNSUPPORTED_MARKER";
case JPEG_DECODER_UNABLE_ALLOCATE_MEMORY:
return "JPEG_DECODER_UNABLE_ALLOCATE_MEMORY";
case JPEG_DECODER_NON_SUPPORTED_SAMP_FACTORS:
return "JPEG_DECODER_NON_SUPPORTED_SAMP_FACTORS";
case JPEG_DECODER_BAD_PARAMETER:
return "JPEG_DECODER_BAD_PARAMETER";
case JPEG_DECODER_DECODE_ERROR:
return "JPEG_DECODER_DECODE_ERROR";
case JPEG_DECODER_BAD_RESTART_MARKER:
return "JPEG_DECODER_BAD_RESTART_MARKER";
case JPEG_DECODER_UNSUPPORTED_COLORSPACE:
return "JPEG_DECODER_UNSUPPORTED_COLORSPACE";
case JPEG_DECODER_BAD_SOS_SPECTRAL:
return "JPEG_DECODER_BAD_SOS_SPECTRAL";
case JPEG_DECODER_BAD_SOS_SUCCESSIVE:
return "JPEG_DECODER_BAD_SOS_SUCCESSIVE";
case JPEG_DECODER_BAD_HEADER_LENGTH:
return "JPEG_DECODER_BAD_HEADER_LENGTH";
case JPEG_DECODER_BAD_COUNT_VALUE:
return "JPEG_DECODER_BAD_COUNT_VALUE";
case JPEG_DECODER_BAD_DHT_MARKER:
return "JPEG_DECODER_BAD_DHT_MARKER";
case JPEG_DECODER_BAD_INDEX_VALUE:
return "JPEG_DECODER_BAD_INDEX_VALUE";
case JPEG_DECODER_BAD_NUMBER_HUFFMAN_TABLES:
return "JPEG_DECODER_BAD_NUMBER_HUFFMAN_TABLES";
case JPEG_DECODER_BAD_QUANT_TABLE_LENGTH:
return "JPEG_DECODER_BAD_QUANT_TABLE_LENGTH";
case JPEG_DECODER_BAD_NUMBER_QUANT_TABLES:
return "JPEG_DECODER_BAD_NUMBER_QUANT_TABLES";
case JPEG_DECODER_BAD_COMPONENT_COUNT:
return "JPEG_DECODER_BAD_COMPONENT_COUNT";
case JPEG_DECODER_DIVIDE_BY_ZERO_ERROR:
return "JPEG_DECODER_DIVIDE_BY_ZERO_ERROR";
case JPEG_DECODER_NOT_JPG_IMAGE:
return "JPEG_DECODER_NOT_JPG_IMAGE";
case JPEG_DECODER_UNSUPPORTED_ROTATION_ANGLE:
return "JPEG_DECODER_UNSUPPORTED_ROTATION_ANGLE";
case JPEG_DECODER_UNSUPPORTED_SCALING:
return "JPEG_DECODER_UNSUPPORTED_SCALING";
case JPEG_DECODER_INSUFFICIENT_OUTPUTBUFFER_SIZE:
return "JPEG_DECODER_INSUFFICIENT_OUTPUTBUFFER_SIZE";
case JPEG_DECODER_BAD_HWCFG_GP_VERSION_VALUE:
return "JPEG_DECODER_BAD_HWCFG_GP_VERSION_VALUE";
case JPEG_DECODER_BAD_VALUE_FROM_RED:
return "JPEG_DECODER_BAD_VALUE_FROM_RED";
case JPEG_DECODER_BAD_SUBREGION_PARAMETERS:
return "JPEG_DECODER_BAD_SUBREGION_PARAMETERS";
case JPEG_DECODER_PROGRESSIVE_DECODE_NOT_SUPPORTED:
return "JPEG_DECODER_PROGRESSIVE_DECODE_NOT_SUPPORTED";
case JPEG_DECODER_ERROR_TASK_TIMEOUT:
return "JPEG_DECODER_ERROR_TASK_TIMEOUT";
case JPEG_DECODER_ERROR_FEATURE_NOT_SUPPORTED:
return "JPEG_DECODER_ERROR_FEATURE_NOT_SUPPORTED";
default:
return "!unknown MJPEG error!";
}
}
static bool delta_mjpeg_check_status(struct delta_ctx *pctx,
struct jpeg_decode_return_params_t *status)
{
struct delta_dev *delta = pctx->dev;
bool dump = false;
if (status->error_code == JPEG_DECODER_NO_ERROR)
goto out;
if (is_stream_error(status->error_code)) {
dev_warn_ratelimited(delta->dev,
"%s firmware: stream error @ frame %d (%s)\n",
pctx->name, pctx->decoded_frames,
err_str(status->error_code));
pctx->stream_errors++;
} else {
dev_warn_ratelimited(delta->dev,
"%s firmware: decode error @ frame %d (%s)\n",
pctx->name, pctx->decoded_frames,
err_str(status->error_code));
pctx->decode_errors++;
dump = true;
}
out:
dev_dbg(delta->dev,
"%s firmware: decoding time(us)=%d\n", pctx->name,
status->decode_time_in_us);
return dump;
}
static int delta_mjpeg_ipc_open(struct delta_ctx *pctx)
{
struct delta_dev *delta = pctx->dev;
struct delta_mjpeg_ctx *ctx = to_ctx(pctx);
int ret = 0;
struct jpeg_video_decode_init_params_t params_struct;
struct jpeg_video_decode_init_params_t *params = ¶ms_struct;
struct delta_buf *ipc_buf;
u32 ipc_buf_size;
struct delta_ipc_param ipc_param;
void *hdl;
memset(params, 0, sizeof(*params));
params->circular_buffer_begin_addr_p = 0x00000000;
params->circular_buffer_end_addr_p = 0xffffffff;
dev_vdbg(delta->dev,
"%s %s\n", pctx->name,
ipc_open_param_str(params, ctx->str, sizeof(ctx->str)));
ipc_param.size = sizeof(*params);
ipc_param.data = params;
ipc_buf_size = sizeof(struct jpeg_decode_params_t) +
sizeof(struct jpeg_decode_return_params_t);
ret = delta_ipc_open(pctx, "JPEG_DECODER_HW0", &ipc_param,
ipc_buf_size, &ipc_buf, &hdl);
if (ret) {
dev_err(delta->dev,
"%s dumping command %s\n", pctx->name,
ipc_open_param_str(params, ctx->str, sizeof(ctx->str)));
return ret;
}
ctx->ipc_buf = ipc_buf;
ctx->ipc_hdl = hdl;
return 0;
}
static int delta_mjpeg_ipc_decode(struct delta_ctx *pctx, struct delta_au *au)
{
struct delta_dev *delta = pctx->dev;
struct delta_mjpeg_ctx *ctx = to_ctx(pctx);
int ret = 0;
struct jpeg_decode_params_t *params = ctx->ipc_buf->vaddr;
struct jpeg_decode_return_params_t *status =
ctx->ipc_buf->vaddr + sizeof(*params);
struct delta_frame *frame;
struct delta_ipc_param ipc_param, ipc_status;
ret = delta_get_free_frame(pctx, &frame);
if (ret)
return ret;
memset(params, 0, sizeof(*params));
params->picture_start_addr_p = (u32)(au->paddr);
params->picture_end_addr_p = (u32)(au->paddr + au->size - 1);
/*
* !WARNING!
* the NV12 decoded frame is only available
* on decimated output when enabling flag
* "JPEG_ADDITIONAL_FLAG_420MB"...
* the non decimated output gives YUV422SP
*/
params->main_aux_enable = JPEG_DISP_AUX_EN;
params->additional_flags = JPEG_ADDITIONAL_FLAG_420MB;
params->horizontal_decimation_factor = JPEG_HDEC_1;
params->vertical_decimation_factor = JPEG_VDEC_1;
params->decoding_mode = JPEG_NORMAL_DECODE;
params->display_buffer_addr.struct_size =
sizeof(struct jpeg_display_buffer_address_t);
params->display_buffer_addr.display_decimated_luma_p =
(u32)frame->paddr;
params->display_buffer_addr.display_decimated_chroma_p =
(u32)(frame->paddr
+ frame->info.aligned_width * frame->info.aligned_height);
dev_vdbg(delta->dev,
"%s %s\n", pctx->name,
ipc_decode_param_str(params, ctx->str, sizeof(ctx->str)));
/* status */
memset(status, 0, sizeof(*status));
status->error_code = JPEG_DECODER_NO_ERROR;
ipc_param.size = sizeof(*params);
ipc_param.data = params;
ipc_status.size = sizeof(*status);
ipc_status.data = status;
ret = delta_ipc_decode(ctx->ipc_hdl, &ipc_param, &ipc_status);
if (ret) {
dev_err(delta->dev,
"%s dumping command %s\n", pctx->name,
ipc_decode_param_str(params, ctx->str,
sizeof(ctx->str)));
return ret;
}
pctx->decoded_frames++;
/* check firmware decoding status */
if (delta_mjpeg_check_status(pctx, status)) {
dev_err(delta->dev,
"%s dumping command %s\n", pctx->name,
ipc_decode_param_str(params, ctx->str,
sizeof(ctx->str)));
}
frame->field = V4L2_FIELD_NONE;
frame->flags = V4L2_BUF_FLAG_KEYFRAME;
frame->state |= DELTA_FRAME_DEC;
ctx->out_frame = frame;
return 0;
}
static int delta_mjpeg_open(struct delta_ctx *pctx)
{
struct delta_mjpeg_ctx *ctx;
ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
if (!ctx)
return -ENOMEM;
pctx->priv = ctx;
return 0;
}
static int delta_mjpeg_close(struct delta_ctx *pctx)
{
struct delta_mjpeg_ctx *ctx = to_ctx(pctx);
if (ctx->ipc_hdl) {
delta_ipc_close(ctx->ipc_hdl);
ctx->ipc_hdl = NULL;
}
kfree(ctx);
return 0;
}
static int delta_mjpeg_get_streaminfo(struct delta_ctx *pctx,
struct delta_streaminfo *streaminfo)
{
struct delta_mjpeg_ctx *ctx = to_ctx(pctx);
if (!ctx->header)
goto nodata;
streaminfo->streamformat = V4L2_PIX_FMT_MJPEG;
streaminfo->width = ctx->header->frame_width;
streaminfo->height = ctx->header->frame_height;
/* progressive stream */
streaminfo->field = V4L2_FIELD_NONE;
streaminfo->dpb = 1;
return 0;
nodata:
return -ENODATA;
}
static int delta_mjpeg_decode(struct delta_ctx *pctx, struct delta_au *pau)
{
struct delta_dev *delta = pctx->dev;
struct delta_mjpeg_ctx *ctx = to_ctx(pctx);
int ret;
struct delta_au au = *pau;
unsigned int data_offset = 0;
struct mjpeg_header *header = &ctx->header_struct;
if (!ctx->header) {
ret = delta_mjpeg_read_header(pctx, au.vaddr, au.size,
header, &data_offset);
if (ret) {
pctx->stream_errors++;
goto err;
}
if (header->frame_width * header->frame_height >
DELTA_MJPEG_MAX_RESO) {
dev_err(delta->dev,
"%s stream resolution too large: %dx%d > %d pixels budget\n",
pctx->name,
header->frame_width,
header->frame_height, DELTA_MJPEG_MAX_RESO);
ret = -EINVAL;
goto err;
}
ctx->header = header;
goto out;
}
if (!ctx->ipc_hdl) {
ret = delta_mjpeg_ipc_open(pctx);
if (ret)
goto err;
}
ret = delta_mjpeg_read_header(pctx, au.vaddr, au.size,
ctx->header, &data_offset);
if (ret) {
pctx->stream_errors++;
goto err;
}
au.paddr += data_offset;
au.vaddr += data_offset;
ret = delta_mjpeg_ipc_decode(pctx, &au);
if (ret)
goto err;
out:
return 0;
err:
return ret;
}
static int delta_mjpeg_get_frame(struct delta_ctx *pctx,
struct delta_frame **frame)
{
struct delta_mjpeg_ctx *ctx = to_ctx(pctx);
if (!ctx->out_frame)
return -ENODATA;
*frame = ctx->out_frame;
ctx->out_frame = NULL;
return 0;
}
const struct delta_dec mjpegdec = {
.name = "MJPEG",
.streamformat = V4L2_PIX_FMT_MJPEG,
.pixelformat = V4L2_PIX_FMT_NV12,
.open = delta_mjpeg_open,
.close = delta_mjpeg_close,
.get_streaminfo = delta_mjpeg_get_streaminfo,
.get_frameinfo = delta_get_frameinfo_default,
.decode = delta_mjpeg_decode,
.get_frame = delta_mjpeg_get_frame,
.recycle = delta_recycle_default,
};
