diff options
| author | Keyon Jie <yang.jie@linux.intel.com> | 2019-10-25 17:41:14 -0500 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-10-28 14:44:37 +0000 |
| commit | 0267de58acfe5059ace739741f1533dd605ed22f (patch) | |
| tree | 2e0d50d7c1c9a22a6e2695f3d521a68573fcd43d /sound/soc/sof | |
| parent | 601252869f50af6f5ab377e7f4846d7b09cc66c0 (diff) | |
ASoC: SOF: Intel: CNL: add support for sending compact IPC
For compact IPCs, we will send the IPC header/command via the HIPCIDR
register and the first 32bit payload via the HIPCIDD register, no
mailbox will be used.
Signed-off-by: Keyon Jie <yang.jie@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20191025224122.7718-19-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/sof')
| -rw-r--r-- | sound/soc/sof/intel/cnl.c | 42 | ||||
| -rw-r--r-- | sound/soc/sof/intel/hda.h | 1 |
2 files changed, 38 insertions, 5 deletions
diff --git a/sound/soc/sof/intel/cnl.c b/sound/soc/sof/intel/cnl.c index 982b81a0b13a..0e1e265f3f3b 100644 --- a/sound/soc/sof/intel/cnl.c +++ b/sound/soc/sof/intel/cnl.c @@ -17,6 +17,7 @@ #include "../ops.h" #include "hda.h" +#include "hda-ipc.h" static const struct snd_sof_debugfs_map cnl_dsp_debugfs[] = { {"hda", HDA_DSP_HDA_BAR, 0, 0x4000, SOF_DEBUGFS_ACCESS_ALWAYS}, @@ -150,14 +151,45 @@ static void cnl_ipc_dsp_done(struct snd_sof_dev *sdev) CNL_DSP_REG_HIPCCTL_DONE); } +static bool cnl_compact_ipc_compress(struct snd_sof_ipc_msg *msg, + u32 *dr, u32 *dd) +{ + struct sof_ipc_pm_gate *pm_gate; + + if (msg->header == (SOF_IPC_GLB_PM_MSG | SOF_IPC_PM_GATE)) { + pm_gate = msg->msg_data; + + /* send the compact message via the primary register */ + *dr = HDA_IPC_MSG_COMPACT | HDA_IPC_PM_GATE; + + /* send payload via the extended data register */ + *dd = pm_gate->flags; + + return true; + } + + return false; +} + static int cnl_ipc_send_msg(struct snd_sof_dev *sdev, struct snd_sof_ipc_msg *msg) { - /* send the message */ - sof_mailbox_write(sdev, sdev->host_box.offset, msg->msg_data, - msg->msg_size); - snd_sof_dsp_write(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCIDR, - CNL_DSP_REG_HIPCIDR_BUSY); + u32 dr = 0; + u32 dd = 0; + + if (cnl_compact_ipc_compress(msg, &dr, &dd)) { + /* send the message via IPC registers */ + snd_sof_dsp_write(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCIDD, + dd); + snd_sof_dsp_write(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCIDR, + CNL_DSP_REG_HIPCIDR_BUSY | dr); + } else { + /* send the message via mailbox */ + sof_mailbox_write(sdev, sdev->host_box.offset, msg->msg_data, + msg->msg_size); + snd_sof_dsp_write(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCIDR, + CNL_DSP_REG_HIPCIDR_BUSY); + } return 0; } diff --git a/sound/soc/sof/intel/hda.h b/sound/soc/sof/intel/hda.h index 99ec60218c16..52a87a47029d 100644 --- a/sound/soc/sof/intel/hda.h +++ b/sound/soc/sof/intel/hda.h @@ -312,6 +312,7 @@ #define CNL_DSP_REG_HIPCTDD (CNL_DSP_IPC_BASE + 0x08) #define CNL_DSP_REG_HIPCIDR (CNL_DSP_IPC_BASE + 0x10) #define CNL_DSP_REG_HIPCIDA (CNL_DSP_IPC_BASE + 0x14) +#define CNL_DSP_REG_HIPCIDD (CNL_DSP_IPC_BASE + 0x18) #define CNL_DSP_REG_HIPCCTL (CNL_DSP_IPC_BASE + 0x28) /* HIPCI */ |