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video: merged from A wait AFBC idle when report state [1/1]

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PD#169128:

[Problem]
When quick switch video between 2 vsync isr, the AFBC may read wrong
data, and green screen or distortion image occurs.

[Solution]
1. Add delay when get video layer state, to make sure afbc is stopped
2. Remove ambiguous log print

[Platform]
Blanche
BranchTo: NONE

[Test]

Change-Id: I94ccf25373f29ce188829ab1b7db6f9df1fb49ad
Signed-off-by: Zhi Zhou <zhi.zhou@amlogic.com>
This commit is contained in:
Zhi Zhou
2018-06-27 15:44:45 +08:00
committed by Dongjin Kim
parent 37bd93cafb
commit d58b2aac10
1 changed files with 22 additions and 3 deletions
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25
drivers/amlogic/media/video_sink/video.c
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@@ -219,6 +219,7 @@ static u32 next_peek_underflow;
static DEFINE_SPINLOCK(video_onoff_lock);
static int video_onoff_state = VIDEO_ENABLE_STATE_IDLE;
static u32 video_onoff_time;
static DEFINE_SPINLOCK(video2_onoff_lock);
static int video2_onoff_state = VIDEO_ENABLE_STATE_IDLE;
static u32 hdmiin_frame_check;
@@ -6291,6 +6292,7 @@ SET_FILTER:
VPP_POSTBLEND_EN;
video_onoff_state = VIDEO_ENABLE_STATE_IDLE;
video_onoff_time = jiffies_to_msecs(jiffies);
if (debug_flag & DEBUG_FLAG_BLACKOUT)
pr_info("VsyncEnableVideoLayer\n");
@@ -6306,6 +6308,7 @@ SET_FILTER:
VSYNC_WR_MPEG_REG(VPP_SRSHARP0_CTRL, 0);
VSYNC_WR_MPEG_REG(VPP_SRSHARP1_CTRL, 0);
video_onoff_state = VIDEO_ENABLE_STATE_IDLE;
video_onoff_time = jiffies_to_msecs(jiffies);
vpu_delay_work_flag |=
VPU_VIDEO_LAYER1_CHANGED;
if (debug_flag & DEBUG_FLAG_BLACKOUT)
@@ -6349,6 +6352,7 @@ SET_FILTER:
else
vpp_misc_set |= (0x1ff << VPP_VD2_ALPHA_BIT);
video2_onoff_state = VIDEO_ENABLE_STATE_IDLE;
video_onoff_time = jiffies_to_msecs(jiffies);
if (debug_flag & DEBUG_FLAG_BLACKOUT)
pr_info("VsyncEnableVideoLayer2\n");
@@ -6356,6 +6360,7 @@ SET_FILTER:
vpp_misc_set &= ~(VPP_VD2_PREBLEND |
VPP_VD2_POSTBLEND | VPP_PREBLEND_EN);
video2_onoff_state = VIDEO_ENABLE_STATE_IDLE;
video_onoff_time = jiffies_to_msecs(jiffies);
if (debug_flag & DEBUG_FLAG_BLACKOUT)
pr_info("VsyncDisableVideoLayer2\n");
@@ -7600,9 +7605,23 @@ static long amvideo_ioctl(struct file *file, unsigned int cmd, ulong arg)
put_user(video_global_output, (u32 __user *)argp);
break;
case AMSTREAM_IOC_GET_VIDEO_LAYER1_ON:
put_user(video_onoff_state, (u32 __user *)argp);
break;
case AMSTREAM_IOC_GET_VIDEO_LAYER1_ON: {
u32 vsync_duration;
u32 video_onoff_diff = 0;
vsync_duration = vsync_pts_inc / 90;
video_onoff_diff =
jiffies_to_msecs(jiffies) - video_onoff_time;
if (video_onoff_state == VIDEO_ENABLE_STATE_IDLE) {
/* wait until 5ms after next vsync */
msleep(video_onoff_diff < vsync_duration
? vsync_duration - video_onoff_diff + 5
: 0);
}
put_user(video_onoff_state, (u32 __user *)argp);
break;
}
case AMSTREAM_IOC_SET_VIDEOPEEK:
videopeek = true;