drivers/staging/greybus/audio_codec.h

   1 /*
   2  * Greybus audio driver
   3  * Copyright 2015 Google Inc.
   4  * Copyright 2015 Linaro Ltd.
   5  *
   6  * Released under the GPLv2 only.
   7  */
   8
   9 #ifndef __LINUX_GBAUDIO_CODEC_H
  10 #define __LINUX_GBAUDIO_CODEC_H
  11
  12 #include <sound/soc.h>
  13
  14 #include "greybus.h"
  15 #include "greybus_protocols.h"
  16
  17 #define NAME_SIZE       32
  18 #define MAX_DAIS        2       /* APB1, APB2 */
  19
  20 enum {
  21         APB1_PCM = 0,
  22         APB2_PCM,
  23         NUM_CODEC_DAIS,
  24 };
  25
  26 enum gbcodec_reg_index {
  27         GBCODEC_CTL_REG,
  28         GBCODEC_MUTE_REG,
  29         GBCODEC_PB_LVOL_REG,
  30         GBCODEC_PB_RVOL_REG,
  31         GBCODEC_CAP_LVOL_REG,
  32         GBCODEC_CAP_RVOL_REG,
  33         GBCODEC_APB1_MUX_REG,
  34         GBCODEC_APB2_MUX_REG,
  35         GBCODEC_REG_COUNT
  36 };
  37
  38 /* bit 0-SPK, 1-HP, 2-DAC,
  39  * 4-MIC, 5-HSMIC, 6-MIC2
  40  */
  41 #define GBCODEC_CTL_REG_DEFAULT         0x00
  42
  43 /* bit 0,1 - APB1-PB-L/R
  44  * bit 2,3 - APB2-PB-L/R
  45  * bit 4,5 - APB1-Cap-L/R
  46  * bit 6,7 - APB2-Cap-L/R
  47  */
  48 #define GBCODEC_MUTE_REG_DEFAULT        0x00
  49
  50 /* 0-127 steps */
  51 #define GBCODEC_PB_VOL_REG_DEFAULT      0x00
  52 #define GBCODEC_CAP_VOL_REG_DEFAULT     0x00
  53
  54 /* bit 0,1,2 - PB stereo, left, right
  55  * bit 8,9,10 - Cap stereo, left, right
  56  */
  57 #define GBCODEC_APB1_MUX_REG_DEFAULT    0x00
  58 #define GBCODEC_APB2_MUX_REG_DEFAULT    0x00
  59
  60 static const u8 gbcodec_reg_defaults[GBCODEC_REG_COUNT] = {
  61         GBCODEC_CTL_REG_DEFAULT,
  62         GBCODEC_MUTE_REG_DEFAULT,
  63         GBCODEC_PB_VOL_REG_DEFAULT,
  64         GBCODEC_PB_VOL_REG_DEFAULT,
  65         GBCODEC_CAP_VOL_REG_DEFAULT,
  66         GBCODEC_CAP_VOL_REG_DEFAULT,
  67         GBCODEC_APB1_MUX_REG_DEFAULT,
  68         GBCODEC_APB2_MUX_REG_DEFAULT,
  69 };
  70
  71 struct gbaudio_dai {
  72         __le16 data_cport;
  73         char name[NAME_SIZE];
  74         struct gb_connection *connection;
  75         struct list_head list;
  76 };
  77
  78 struct gbaudio_codec_info {
  79         /* module info */
  80         int dev_id;     /* check if it should be bundle_id/hd_cport_id */
  81         int vid;
  82         int pid;
  83         int slot;
  84         int type;
  85         int dai_added;
  86         int codec_registered;
  87         char vstr[NAME_SIZE];
  88         char pstr[NAME_SIZE];
  89         struct list_head list;
  90         char name[NAME_SIZE];
  91
  92         /* soc related data */
  93         struct snd_soc_codec *codec;
  94         struct device *dev;
  95         u8 reg[GBCODEC_REG_COUNT];
  96
  97         /* dai_link related */
  98         char card_name[NAME_SIZE];
  99         char *dailink_name[MAX_DAIS];
 100         int num_dai_links;
 101
 102         /* topology related */
 103         struct gb_connection *mgmt_connection;
 104         int num_dais;
 105         int num_kcontrols;
 106         int num_dapm_widgets;
 107         int num_dapm_routes;
 108         struct snd_kcontrol_new *kctls;
 109         struct snd_soc_dapm_widget *widgets;
 110         struct snd_soc_dapm_route *routes;
 111         struct snd_soc_dai_driver *dais;
 112
 113         /* lists */
 114         struct list_head dai_list;
 115         struct mutex lock;
 116 };
 117
 118 /* protocol related */
 119 extern int gb_audio_gb_get_control(struct gb_connection *connection,
 120                                    uint8_t control_id, uint8_t index,
 121                                    struct gb_audio_ctl_elem_value *value);
 122 extern int gb_audio_gb_set_control(struct gb_connection *connection,
 123                                    uint8_t control_id, uint8_t index,
 124                                    struct gb_audio_ctl_elem_value *value);
 125 extern int gb_audio_gb_enable_widget(struct gb_connection *connection,
 126                                      uint8_t widget_id);
 127 extern int gb_audio_gb_disable_widget(struct gb_connection *connection,
 128                                       uint8_t widget_id);
 129 extern int gb_audio_gb_get_pcm(struct gb_connection *connection,
 130                                uint16_t data_cport, uint32_t *format,
 131                                uint32_t *rate, uint8_t *channels,
 132                                uint8_t *sig_bits);
 133 extern int gb_audio_gb_set_pcm(struct gb_connection *connection,
 134                                uint16_t data_cport, uint32_t format,
 135                                uint32_t rate, uint8_t channels,
 136                                uint8_t sig_bits);
 137 extern int gb_audio_gb_set_tx_data_size(struct gb_connection *connection,
 138                                         uint16_t data_cport, uint16_t size);
 139 extern int gb_audio_gb_get_tx_delay(struct gb_connection *connection,
 140                                     uint16_t data_cport, uint32_t *delay);
 141 extern int gb_audio_gb_activate_tx(struct gb_connection *connection,
 142                                    uint16_t data_cport);
 143 extern int gb_audio_gb_deactivate_tx(struct gb_connection *connection,
 144                                      uint16_t data_cport);
 145 extern int gb_audio_gb_set_rx_data_size(struct gb_connection *connection,
 146                                         uint16_t data_cport, uint16_t size);
 147 extern int gb_audio_gb_get_rx_delay(struct gb_connection *connection,
 148                                     uint16_t data_cport, uint32_t *delay);
 149 extern int gb_audio_gb_activate_rx(struct gb_connection *connection,
 150                                    uint16_t data_cport);
 151 extern int gb_audio_gb_deactivate_rx(struct gb_connection *connection,
 152                                      uint16_t data_cport);
 153 extern int gb_audio_apbridgea_set_config(struct gb_connection *connection,
 154                                          __u16 i2s_port, __u32 format,
 155                                          __u32 rate, __u32 mclk_freq);
 156 extern int gb_audio_apbridgea_register_cport(struct gb_connection *connection,
 157                                              __u16 i2s_port, __u16 cportid);
 158 extern int gb_audio_apbridgea_unregister_cport(struct gb_connection *connection,
 159                                                __u16 i2s_port, __u16 cportid);
 160 extern int gb_audio_apbridgea_set_tx_data_size(struct gb_connection *connection,
 161                                                __u16 i2s_port, __u16 size);
 162 extern int gb_audio_apbridgea_get_tx_delay(struct gb_connection *connection,
 163                                            __u16 i2s_port, __u32 *delay);
 164 extern int gb_audio_apbridgea_start_tx(struct gb_connection *connection,
 165                                        __u16 i2s_port, __u64 timestamp);
 166 extern int gb_audio_apbridgea_stop_tx(struct gb_connection *connection,
 167                                       __u16 i2s_port);
 168 extern int gb_audio_apbridgea_set_rx_data_size(struct gb_connection *connection,
 169                                                __u16 i2s_port, __u16 size);
 170 extern int gb_audio_apbridgea_get_rx_delay(struct gb_connection *connection,
 171                                            __u16 i2s_port, __u32 *delay);
 172 extern int gb_audio_apbridgea_start_rx(struct gb_connection *connection,
 173                                        __u16 i2s_port);
 174 extern int gb_audio_apbridgea_stop_rx(struct gb_connection *connection,
 175                                       __u16 i2s_port);
 176
 177 #endif /* __LINUX_GBAUDIO_CODEC_H */