TWxSoftware/twx-linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

media: rockchip: hdmirx: support hdmirx low latency function

Browse Source 
Signed-off-by: Dingxian Wen <shawn.wen@rock-chips.com>
Change-Id: I6a03bdfae6436972c3875711c8c2e75aa24c4c82
This commit is contained in:
Dingxian Wen
2023-04-14 20:26:41 +08:00
parent 507366b5f1
commit 6d8b5b33d5
1 changed files with 42 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/media/platform/rockchip/hdmirx/rk_hdmirx.c
+42 -11
View File
@@ -54,6 +54,10 @@ static int debug;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "debug level (0-3)");
static bool low_latency;
module_param(low_latency, bool, 0644);
MODULE_PARM_DESC(low_latency, "low_latency en(0-1)");
#define RK_HDMIRX_DRVNAME "rk_hdmirx"
#define EDID_NUM_BLOCKS_MAX 2
#define EDID_BLOCK_SIZE 128
@@ -2059,6 +2063,7 @@ static int hdmirx_start_streaming(struct vb2_queue *queue, unsigned int count)
struct v4l2_dv_timings timings = hdmirx_dev->timings;
struct v4l2_bt_timings *bt = &timings.bt;
int line_flag;
int delay_line;
uint32_t touch_flag;
if (!hdmirx_dev->get_timing) {
@@ -2110,12 +2115,19 @@ static int hdmirx_start_streaming(struct vb2_queue *queue, unsigned int count)
if (bt->height) {
if (bt->interlaced == V4L2_DV_INTERLACED)
line_flag = bt->height / 4;
else
line_flag = bt->height / 2;
else
line_flag = bt->height;
if (low_latency && hdmirx_dev->fps >= 59)
delay_line = 10;
else
delay_line = line_flag * 2 / 3;
v4l2_info(v4l2_dev, "%s: delay_line:%d\n", __func__, delay_line);
hdmirx_update_bits(hdmirx_dev, DMA_CONFIG7,
LINE_FLAG_NUM_MASK,
LINE_FLAG_NUM(line_flag));
LINE_FLAG_NUM(delay_line));
} else {
v4l2_err(v4l2_dev, "height err: %d\n", bt->height);
}
@@ -2644,6 +2656,9 @@ static void dma_idle_int_handler(struct rk_hdmirx_dev *hdmirx_dev, bool *handled
v4l2_dbg(1, debug, v4l2_dev,
"%s: last time have no line_flag_irq\n", __func__);
if (low_latency)
goto DMA_IDLE_OUT;
if (stream->line_flag_int_cnt <= FILTER_FRAME_CNT)
goto DMA_IDLE_OUT;
@@ -2684,6 +2699,7 @@ static void line_flag_int_handler(struct rk_hdmirx_dev *hdmirx_dev, bool *handle
struct v4l2_dv_timings timings = hdmirx_dev->timings;
struct v4l2_bt_timings *bt = &timings.bt;
u32 dma_cfg6;
struct vb2_v4l2_buffer *vb_done = NULL;
stream->line_flag_int_cnt++;
if (!(stream->irq_stat) && !(stream->irq_stat & HDMIRX_DMA_IDLE_INT))
@@ -2711,14 +2727,29 @@ static void line_flag_int_handler(struct rk_hdmirx_dev *hdmirx_dev, bool *handle
}
spin_unlock(&stream->vbq_lock);
if (stream->next_buf) {
hdmirx_writel(hdmirx_dev, DMA_CONFIG2,
stream->next_buf->buff_addr[HDMIRX_PLANE_Y]);
hdmirx_writel(hdmirx_dev, DMA_CONFIG3,
stream->next_buf->buff_addr[HDMIRX_PLANE_CBCR]);
} else {
v4l2_dbg(3, debug, v4l2_dev,
"%s: No buffer is available\n", __func__);
}
if (stream->next_buf) {
hdmirx_writel(hdmirx_dev, DMA_CONFIG2,
stream->next_buf->buff_addr[HDMIRX_PLANE_Y]);
hdmirx_writel(hdmirx_dev, DMA_CONFIG3,
stream->next_buf->buff_addr[HDMIRX_PLANE_CBCR]);
if (low_latency) {
if (stream->curr_buf)
vb_done = &stream->curr_buf->vb;
if (vb_done) {
vb_done->vb2_buf.timestamp = ktime_get_ns();
vb_done->sequence = stream->frame_idx;
hdmirx_vb_done(stream, vb_done);
stream->frame_idx++;
if (stream->frame_idx == 30)
v4l2_info(v4l2_dev, "rcv frames\n");
}
stream->curr_buf = stream->next_buf;
stream->next_buf = NULL;
}
}
} else {