ASoC: SOF: Intel: CNL: add ipc dump function

Add ipc dump function to CNL+ platforms.

Signed-off-by: Pan Xiuli <xiuli.pan@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 19 insertions, 0 deletions

diff --git a/sound/soc/sof/intel/cnl.c b/sound/soc/sof/intel/cnl.c
index 2eac20bbcaea..08a1a3d3c08d 100644
--- a/sound/soc/sof/intel/cnl.c
+++ b/sound/soc/sof/intel/cnl.c
@@ -158,6 +158,24 @@ static int cnl_ipc_send_msg(struct snd_sof_dev *sdev,
         return 0;
 }
 
+static void cnl_ipc_dump(struct snd_sof_dev *sdev)
+{
+        u32 hipcctl;
+        u32 hipcida;
+        u32 hipctdr;
+
+        /* read IPC status */
+        hipcida = snd_sof_dsp_read(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCIDA);
+        hipcctl = snd_sof_dsp_read(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCCTL);
+        hipctdr = snd_sof_dsp_read(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCTDR);
+
+        /* dump the IPC regs */
+        /* TODO: parse the raw msg */
+        dev_err(sdev->dev,
+                "error: host status 0x%8.8x dsp status 0x%8.8x mask 0x%8.8x\n",
+                hipcida, hipctdr, hipcctl);
+}
+
 /* cannonlake ops */
 const struct snd_sof_dsp_ops sof_cnl_ops = {
         /* probe and remove */
@@ -189,6 +207,7 @@ const struct snd_sof_dsp_ops sof_cnl_ops = {
         .debug_map      = cnl_dsp_debugfs,
         .debug_map_count        = ARRAY_SIZE(cnl_dsp_debugfs),
         .dbg_dump       = hda_dsp_dump,
+        .ipc_dump       = cnl_ipc_dump,
 
         /* stream callbacks */
         .pcm_open       = hda_dsp_pcm_open,