ASoC: msm: qdsp6v2: Add support for AFE sidetone

Add support for AFE sidetone whenever USB device or
codec sidetone is not available or supported.

Change-Id: I325ba6448efb4c021a2974ad813be4f8192e9ad1
Signed-off-by: Vikram Panduranga <vpandura@codeaurora.org>
Signed-off-by: Siena Richard <sienar@codeaurora.org>

3 files changed, 82 insertions, 3 deletions

diff --git a/include/sound/apr_audio-v2.h b/include/sound/apr_audio-v2.h
index e098e2329ac6..e08f3670ec58 100644
--- a/include/sound/apr_audio-v2.h
+++ b/include/sound/apr_audio-v2.h
@@ -1,4 +1,4 @@
-/* Copyright (c) 2012-2016, The Linux Foundation. All rights reserved.
+/* Copyright (c) 2012-2017, The Linux Foundation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 and
@@ -1206,6 +1206,8 @@ struct afe_mod_enable_param {
  * #AFE_MODULE_SIDETONE_IIR_FILTER module.
  */
 #define AFE_PARAM_ID_SIDETONE_IIR_FILTER_CONFIG	0x00010204
+#define MAX_SIDETONE_IIR_DATA_SIZE 224
+#define MAX_NO_IIR_FILTER_STAGE    10
 
 struct afe_sidetone_iir_filter_config_params {
 	u16                  num_biquad_stages;
@@ -1217,6 +1219,7 @@ struct afe_sidetone_iir_filter_config_params {
 /* Pregain for the compensating filter response.
  * Supported values: Any number in Q13 format
  */
+	uint8_t   iir_config[MAX_SIDETONE_IIR_DATA_SIZE];
 } __packed;
 
 #define AFE_MODULE_LOOPBACK	0x00010205
@@ -1368,6 +1371,55 @@ struct afe_loopback_cfg_v1 {
 
 } __packed;
 
+struct afe_loopback_sidetone_gain {
+	u16                  rx_port_id;
+	u16                  gain;
+} __packed;
+
+struct loopback_cfg_data {
+	u32                  loopback_cfg_minor_version;
+/* Minor version used for tracking the version of the RMC module
+ * configuration interface.
+ * Supported values: #AFE_API_VERSION_LOOPBACK_CONFIG
+ */
+	u16                  dst_port_id;
+	/* Destination Port Id. */
+	u16                  routing_mode;
+/* Specifies data path type from src to dest port.
+ * Supported values:
+ * #LB_MODE_DEFAULT
+ * #LB_MODE_SIDETONE
+ * #LB_MODE_EC_REF_VOICE_AUDIO
+ * #LB_MODE_EC_REF_VOICE_A
+ * #LB_MODE_EC_REF_VOICE
+ */
+
+	u16                  enable;
+/* Specifies whether to enable (1) or
+ * disable (0) an AFE loopback.
+ */
+	u16                  reserved;
+/* Reserved for 32-bit alignment. This field must be set to 0.
+ */
+} __packed;
+
+struct afe_st_loopback_cfg_v1 {
+	struct apr_hdr                    hdr;
+	struct afe_port_cmd_set_param_v2  param;
+	struct afe_port_param_data_v2     gain_pdata;
+	struct afe_loopback_sidetone_gain gain_data;
+	struct afe_port_param_data_v2     cfg_pdata;
+	struct loopback_cfg_data          cfg_data;
+} __packed;
+
+struct afe_loopback_iir_cfg_v2 {
+	struct apr_hdr                          hdr;
+	struct afe_port_cmd_set_param_v2        param;
+	struct afe_port_param_data_v2           st_iir_enable_pdata;
+	struct afe_mod_enable_param             st_iir_mode_enable_data;
+	struct afe_port_param_data_v2           st_iir_filter_config_pdata;
+	struct afe_sidetone_iir_filter_config_params st_iir_filter_config_data;
+} __packed;
 #define AFE_MODULE_SPEAKER_PROTECTION	0x00010209
 #define AFE_PARAM_ID_SPKR_PROT_CONFIG	0x0001020a
 #define AFE_API_VERSION_SPKR_PROT_CONFIG	0x1
diff --git a/include/sound/q6afe-v2.h b/include/sound/q6afe-v2.h
index e0da428fa52f..a47d2805b9c5 100644
--- a/include/sound/q6afe-v2.h
+++ b/include/sound/q6afe-v2.h
@@ -1,4 +1,4 @@
-/* Copyright (c) 2012-2016, The Linux Foundation. All rights reserved.
+/* Copyright (c) 2012-2017, The Linux Foundation. All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 and
@@ -265,7 +265,7 @@ struct aanc_data {
 int afe_open(u16 port_id, union afe_port_config *afe_config, int rate);
 int afe_close(int port_id);
 int afe_loopback(u16 enable, u16 rx_port, u16 tx_port);
-int afe_sidetone(u16 tx_port_id, u16 rx_port_id, u16 enable, uint16_t gain);
+int afe_sidetone_enable(u16 tx_port_id, u16 rx_port_id, bool enable);
 int afe_loopback_gain(u16 port_id, u16 volume);
 int afe_validate_port(u16 port_id);
 int afe_get_port_index(u16 port_id);
diff --git a/include/uapi/linux/msm_audio_calibration.h b/include/uapi/linux/msm_audio_calibration.h
index 3c6ab13ca470..f05f9aaddb70 100644
--- a/include/uapi/linux/msm_audio_calibration.h
+++ b/include/uapi/linux/msm_audio_calibration.h
@@ -98,12 +98,15 @@ enum {
 	ULP_LSM_TOPOLOGY_ID_CAL_TYPE,
 	AFE_FB_SPKR_PROT_TH_VI_CAL_TYPE,
 	AFE_FB_SPKR_PROT_EX_VI_CAL_TYPE,
+	AFE_SIDETONE_IIR_CAL_TYPE,
 	MAX_CAL_TYPES,
 };
 
 #define AFE_FB_SPKR_PROT_TH_VI_CAL_TYPE AFE_FB_SPKR_PROT_TH_VI_CAL_TYPE
 #define AFE_FB_SPKR_PROT_EX_VI_CAL_TYPE AFE_FB_SPKR_PROT_EX_VI_CAL_TYPE
 
+#define AFE_SIDETONE_IIR_CAL_TYPE AFE_SIDETONE_IIR_CAL_TYPE
+
 enum {
 	VERSION_0_0,
 };
@@ -346,6 +349,19 @@ struct audio_cal_info_sidetone {
 	int32_t		pid;
 };
 
+#define MAX_SIDETONE_IIR_DATA_SIZE   224
+#define MAX_NO_IIR_FILTER_STAGE      10
+
+struct audio_cal_info_sidetone_iir {
+	uint16_t	iir_enable;
+	uint16_t	num_biquad_stages;
+	uint16_t	pregain;
+	int32_t	        tx_acdb_id;
+	int32_t	        rx_acdb_id;
+	int32_t	        mid;
+	int32_t	        pid;
+	uint8_t	        iir_config[MAX_SIDETONE_IIR_DATA_SIZE];
+};
 struct audio_cal_info_lsm_top {
 	int32_t		topology;
 	int32_t		acdb_id;
@@ -580,6 +596,17 @@ struct audio_cal_sidetone {
 	struct audio_cal_type_sidetone		cal_type;
 };
 
+struct audio_cal_type_sidetone_iir {
+	struct audio_cal_type_header	   cal_hdr;
+	struct audio_cal_data		   cal_data;
+	struct audio_cal_info_sidetone_iir cal_info;
+};
+
+struct audio_cal_sidetone_iir {
+	struct audio_cal_header		   hdr;
+	struct audio_cal_type_sidetone_iir cal_type;
+};
+
 struct audio_cal_type_lsm_top {
 	struct audio_cal_type_header	cal_hdr;
 	struct audio_cal_data		cal_data;