korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-16 00:34:20 +08:00
Code Issues Packages Projects Releases Wiki Activity

ASoC: wm_adsp: Dump scratch registers on DSP shutdown

Browse Source 
The SCRATCH registers are used by firmwares to hold diagnostic
information. Log this during shutdown to assist analysis and debug
of firmwares.

Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Richard Fitzgerald 2015-05-29 10:23:07 +01:00 committed by Mark Brown
parent 26c22a1922
commit 10337b070d
1 changed files with 27 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
sound/soc/codecs/wm_adsp.c
View File

@ -121,6 +121,11 @@
#define ADSP2_WDMA_CONFIG_2 0x31
#define ADSP2_RDMA_CONFIG_1 0x34
#define ADSP2_SCRATCH0 0x40
#define ADSP2_SCRATCH1 0x41
#define ADSP2_SCRATCH2 0x42
#define ADSP2_SCRATCH3 0x43
/*
* ADSP2 Control
*/
@ -364,6 +369,25 @@ static unsigned int wm_adsp_region_to_reg(struct wm_adsp_region const *mem,
}
}
static void wm_adsp2_show_fw_status(struct wm_adsp *dsp)
{
u16 scratch[4];
int ret;
ret = regmap_raw_read(dsp->regmap, dsp->base + ADSP2_SCRATCH0,
scratch, sizeof(scratch));
if (ret) {
adsp_err(dsp, "Failed to read SCRATCH regs: %d\n", ret);
return;
}
adsp_dbg(dsp, "FW SCRATCH 0:0x%x 1:0x%x 2:0x%x 3:0x%x\n",
be16_to_cpu(scratch[0]),
be16_to_cpu(scratch[1]),
be16_to_cpu(scratch[2]),
be16_to_cpu(scratch[3]));
}
static int wm_coeff_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
@ -1898,6 +1922,9 @@ int wm_adsp2_event(struct snd_soc_dapm_widget *w,
break;
case SND_SOC_DAPM_PRE_PMD:
/* Log firmware state, it can be useful for analysis */
wm_adsp2_show_fw_status(dsp);
dsp->running = false;
regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,