ASoC: Intel: Atom: add definitions for modem/SSP0 interface

The Atom DPCM driver only allowed for the SSP2 interface, add
definitions for modem/SSP0.

These definitions might be used to route audio to a codec
connected to SSP0 (instead of a modem in traditional usages),
but there is a restriction to 2ch I2S. SSP2 is capable of
handling up to 4 slot TDM.

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

2 files changed, 22 insertions, 1 deletions

diff --git a/sound/soc/intel/atom/sst-atom-controls.c b/sound/soc/intel/atom/sst-atom-controls.c
index 98720a93de8a..28eea127ec33 100644
--- a/sound/soc/intel/atom/sst-atom-controls.c
+++ b/sound/soc/intel/atom/sst-atom-controls.c
@@ -1,4 +1,4 @@
-/*
+ /*
  *  sst-atom-controls.c - Intel MID Platform driver DPCM ALSA controls for Mrfld
  *
  *  Copyright (C) 2013-14 Intel Corp
@@ -534,6 +534,7 @@ static const DECLARE_TLV_DB_SCALE(sst_gain_tlv_common, SST_GAIN_MIN_VALUE * 10,
 
 /* Look up table to convert MIXER SW bit regs to SWM inputs */
 static const uint swm_mixer_input_ids[SST_SWM_INPUT_COUNT] = {
+        [SST_IP_MODEM]          = SST_SWM_IN_MODEM,
         [SST_IP_CODEC0]         = SST_SWM_IN_CODEC0,
         [SST_IP_CODEC1]         = SST_SWM_IN_CODEC1,
         [SST_IP_LOOP0]          = SST_SWM_IN_SPROT_LOOP,
@@ -674,6 +675,7 @@ static int sst_swm_mixer_event(struct snd_soc_dapm_widget *w,
 /* SBA mixers - 16 inputs */
 #define SST_SBA_DECLARE_MIX_CONTROLS(kctl_name)                                                 \
         static const struct snd_kcontrol_new kctl_name[] = {                                    \
+                SOC_DAPM_SINGLE("modem_in Switch", SND_SOC_NOPM, SST_IP_MODEM, 1, 0),           \
                 SOC_DAPM_SINGLE("codec_in0 Switch", SND_SOC_NOPM, SST_IP_CODEC0, 1, 0),         \
                 SOC_DAPM_SINGLE("codec_in1 Switch", SND_SOC_NOPM, SST_IP_CODEC1, 1, 0),         \
                 SOC_DAPM_SINGLE("sprot_loop_in Switch", SND_SOC_NOPM, SST_IP_LOOP0, 1, 0),      \
@@ -684,6 +686,7 @@ static int sst_swm_mixer_event(struct snd_soc_dapm_widget *w,
         }
 
 #define SST_SBA_MIXER_GRAPH_MAP(mix_name)                       \
+        { mix_name, "modem_in Switch",  "modem_in" },           \
         { mix_name, "codec_in0 Switch", "codec_in0" },          \
         { mix_name, "codec_in1 Switch", "codec_in1" },          \
         { mix_name, "sprot_loop_in Switch",     "sprot_loop_in" },      \
@@ -713,6 +716,7 @@ SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_media_l2_controls);
 SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_voip_controls);
 SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_codec0_controls);
 SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_codec1_controls);
+SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_modem_controls);
 
 /*
  * sst_handle_vb_timer - Start/Stop the DSP scheduler
@@ -1047,8 +1051,10 @@ static int sst_set_media_loop(struct snd_soc_dapm_widget *w,
 }
 
 static const struct snd_soc_dapm_widget sst_dapm_widgets[] = {
+        SST_AIF_IN("modem_in", sst_set_be_modules),
         SST_AIF_IN("codec_in0", sst_set_be_modules),
         SST_AIF_IN("codec_in1", sst_set_be_modules),
+        SST_AIF_OUT("modem_out", sst_set_be_modules),
         SST_AIF_OUT("codec_out0", sst_set_be_modules),
         SST_AIF_OUT("codec_out1", sst_set_be_modules),
 
@@ -1103,6 +1109,9 @@ static const struct snd_soc_dapm_widget sst_dapm_widgets[] = {
                       sst_mix_codec0_controls, sst_swm_mixer_event),
         SST_SWM_MIXER("codec_out1 mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_CODEC1,
                       sst_mix_codec1_controls, sst_swm_mixer_event),
+        SST_SWM_MIXER("modem_out mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_MODEM,
+                      sst_mix_modem_controls, sst_swm_mixer_event),
+
 };
 
 static const struct snd_soc_dapm_route intercon[] = {
@@ -1148,6 +1157,9 @@ static const struct snd_soc_dapm_route intercon[] = {
         SST_SBA_MIXER_GRAPH_MAP("codec_out0 mix 0"),
         {"codec_out1", NULL, "codec_out1 mix 0"},
         SST_SBA_MIXER_GRAPH_MAP("codec_out1 mix 0"),
+        {"modem_out", NULL, "modem_out mix 0"},
+        SST_SBA_MIXER_GRAPH_MAP("modem_out mix 0"),
+
 
 };
 static const char * const slot_names[] = {
@@ -1217,6 +1229,9 @@ static const struct snd_kcontrol_new sst_gain_controls[] = {
         SST_GAIN("media_loop2_out", SST_PATH_INDEX_MEDIA_LOOP2_OUT, SST_TASK_SBA, 0, &sst_gains[13]),
         SST_GAIN("sprot_loop_out", SST_PATH_INDEX_SPROT_LOOP_OUT, SST_TASK_SBA, 0, &sst_gains[14]),
         SST_VOLUME("media0_in", SST_PATH_INDEX_MEDIA0_IN, SST_TASK_MMX, 0, &sst_gains[15]),
+        SST_GAIN("modem_in", SST_PATH_INDEX_MODEM_IN, SST_TASK_SBA, 0, &sst_gains[16]),
+        SST_GAIN("modem_out", SST_PATH_INDEX_MODEM_OUT, SST_TASK_SBA, 0, &sst_gains[17]),
+
 };
 
 #define SST_GAIN_NUM_CONTROLS 3
diff --git a/sound/soc/intel/atom/sst-atom-controls.h b/sound/soc/intel/atom/sst-atom-controls.h
index e0113112f668..351d81469685 100644
--- a/sound/soc/intel/atom/sst-atom-controls.h
+++ b/sound/soc/intel/atom/sst-atom-controls.h
@@ -35,6 +35,8 @@ enum {
 /* define a bit for each mixer input */
 #define SST_MIX_IP(x)           (x)
 
+#define SST_IP_MODEM            SST_MIX_IP(0)
+#define SST_IP_BT               SST_MIX_IP(1)
 #define SST_IP_CODEC0           SST_MIX_IP(2)
 #define SST_IP_CODEC1           SST_MIX_IP(3)
 #define SST_IP_LOOP0            SST_MIX_IP(4)
@@ -63,6 +65,7 @@ enum {
  * Audio DSP Path Ids. Specified by the audio DSP FW
  */
 enum sst_path_index {
+        SST_PATH_INDEX_MODEM_OUT                = (0x00 << SST_PATH_ID_SHIFT),
         SST_PATH_INDEX_CODEC_OUT0               = (0x02 << SST_PATH_ID_SHIFT),
         SST_PATH_INDEX_CODEC_OUT1               = (0x03 << SST_PATH_ID_SHIFT),
 
@@ -80,6 +83,7 @@ enum sst_path_index {
 
 
         /* Start of input paths */
+        SST_PATH_INDEX_MODEM_IN                 = (0x80 << SST_PATH_ID_SHIFT),
         SST_PATH_INDEX_CODEC_IN0                = (0x82 << SST_PATH_ID_SHIFT),
         SST_PATH_INDEX_CODEC_IN1                = (0x83 << SST_PATH_ID_SHIFT),
 
@@ -105,6 +109,7 @@ enum sst_path_index {
  * path IDs
  */
 enum sst_swm_inputs {
+        SST_SWM_IN_MODEM        = (SST_PATH_INDEX_MODEM_IN        | SST_DEFAULT_CELL_NBR),
         SST_SWM_IN_CODEC0       = (SST_PATH_INDEX_CODEC_IN0       | SST_DEFAULT_CELL_NBR),
         SST_SWM_IN_CODEC1       = (SST_PATH_INDEX_CODEC_IN1       | SST_DEFAULT_CELL_NBR),
         SST_SWM_IN_SPROT_LOOP   = (SST_PATH_INDEX_SPROT_LOOP_IN   | SST_DEFAULT_CELL_NBR),
@@ -124,6 +129,7 @@ enum sst_swm_inputs {
  * path IDs
  */
 enum sst_swm_outputs {
+        SST_SWM_OUT_MODEM       = (SST_PATH_INDEX_MODEM_OUT       | SST_DEFAULT_CELL_NBR),
         SST_SWM_OUT_CODEC0      = (SST_PATH_INDEX_CODEC_OUT0      | SST_DEFAULT_CELL_NBR),
         SST_SWM_OUT_CODEC1      = (SST_PATH_INDEX_CODEC_OUT1      | SST_DEFAULT_CELL_NBR),
         SST_SWM_OUT_SPROT_LOOP  = (SST_PATH_INDEX_SPROT_LOOP_OUT  | SST_DEFAULT_CELL_NBR),