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| author | Sylwester Nawrocki <s.nawrocki@samsung.com> | 2012-09-28 14:05:53 (GMT) |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-12-21 14:25:13 (GMT) |
| commit | a2fea0dfddf95b7f1e7adb3630c7d07a92cfb09b (patch) | |
| tree | 707f2eb1135327cab3bd5c971be369cd72d7a862 /drivers/media/platform/s5p-fimc | |
| parent | cd65a645a4f5e456607067734f9a11385c9dce7b (diff) | |
| download | linux-fsl-qoriq-a2fea0dfddf95b7f1e7adb3630c7d07a92cfb09b.tar.xz | |
[media] s5p-csis: Add registers logging for debugging
Dump registers contents together with the event counters state
in VIDIOC_LOG_STATUS ioctl.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/platform/s5p-fimc')
| -rw-r--r-- | drivers/media/platform/s5p-fimc/mipi-csis.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/media/platform/s5p-fimc/mipi-csis.c b/drivers/media/platform/s5p-fimc/mipi-csis.c index 8ec7c3b..8a06f14 100644 --- a/drivers/media/platform/s5p-fimc/mipi-csis.c +++ b/drivers/media/platform/s5p-fimc/mipi-csis.c @@ -383,6 +383,30 @@ err: return -ENXIO; } +static void dump_regs(struct csis_state *state, const char *label) +{ + struct { + u32 offset; + const char * const name; + } registers[] = { + { 0x00, "CTRL" }, + { 0x04, "DPHYCTRL" }, + { 0x08, "CONFIG" }, + { 0x0c, "DPHYSTS" }, + { 0x10, "INTMSK" }, + { 0x2c, "RESOL" }, + { 0x38, "SDW_CONFIG" }, + }; + u32 i; + + v4l2_info(&state->sd, "--- %s ---\n", label); + + for (i = 0; i < ARRAY_SIZE(registers); i++) { + u32 cfg = s5pcsis_read(state, registers[i].offset); + v4l2_info(&state->sd, "%10s: 0x%08x\n", registers[i].name, cfg); + } +} + static void s5pcsis_start_stream(struct csis_state *state) { s5pcsis_reset(state); @@ -583,7 +607,11 @@ static int s5pcsis_log_status(struct v4l2_subdev *sd) { struct csis_state *state = sd_to_csis_state(sd); + mutex_lock(&state->lock); s5pcsis_log_counters(state, true); + if (debug && (state->flags & ST_POWERED)) + dump_regs(state, __func__); + mutex_unlock(&state->lock); return 0; } |