diff options
Diffstat (limited to 'drivers/staging/greybus/audio_codec.h')
| -rw-r--r-- | drivers/staging/greybus/audio_codec.h | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/drivers/staging/greybus/audio_codec.h b/drivers/staging/greybus/audio_codec.h new file mode 100644 index 000000000000..f8597b3de808 --- /dev/null +++ b/drivers/staging/greybus/audio_codec.h @@ -0,0 +1,146 @@ +/* + * Greybus audio driver + * Copyright 2015 Google Inc. + * Copyright 2015 Linaro Ltd. + * + * Released under the GPLv2 only. + */ + +#ifndef __LINUX_GBAUDIO_CODEC_H +#define __LINUX_GBAUDIO_CODEC_H + +#include <sound/soc.h> + +#include "greybus.h" +#include "greybus_protocols.h" + +#define NAME_SIZE 32 + +enum { + APB1_PCM = 0, + APB2_PCM, + NUM_CODEC_DAIS, +}; + +enum gbcodec_reg_index { + GBCODEC_CTL_REG, + GBCODEC_MUTE_REG, + GBCODEC_PB_LVOL_REG, + GBCODEC_PB_RVOL_REG, + GBCODEC_CAP_LVOL_REG, + GBCODEC_CAP_RVOL_REG, + GBCODEC_APB1_MUX_REG, + GBCODEC_APB2_MUX_REG, + GBCODEC_REG_COUNT +}; + +/* bit 0-SPK, 1-HP, 2-DAC, + * 4-MIC, 5-HSMIC, 6-MIC2 + */ +#define GBCODEC_CTL_REG_DEFAULT 0x00 + +/* bit 0,1 - APB1-PB-L/R + * bit 2,3 - APB2-PB-L/R + * bit 4,5 - APB1-Cap-L/R + * bit 6,7 - APB2-Cap-L/R + */ +#define GBCODEC_MUTE_REG_DEFAULT 0x00 + +/* 0-127 steps */ +#define GBCODEC_PB_VOL_REG_DEFAULT 0x00 +#define GBCODEC_CAP_VOL_REG_DEFAULT 0x00 + +/* bit 0,1,2 - PB stereo, left, right + * bit 8,9,10 - Cap stereo, left, right + */ +#define GBCODEC_APB1_MUX_REG_DEFAULT 0x00 +#define GBCODEC_APB2_MUX_REG_DEFAULT 0x00 + +static const u8 gbcodec_reg_defaults[GBCODEC_REG_COUNT] = { + GBCODEC_CTL_REG_DEFAULT, + GBCODEC_MUTE_REG_DEFAULT, + GBCODEC_PB_VOL_REG_DEFAULT, + GBCODEC_PB_VOL_REG_DEFAULT, + GBCODEC_CAP_VOL_REG_DEFAULT, + GBCODEC_CAP_VOL_REG_DEFAULT, + GBCODEC_APB1_MUX_REG_DEFAULT, + GBCODEC_APB2_MUX_REG_DEFAULT, +}; + +struct gbaudio_codec_info { + struct snd_soc_codec *codec; + + bool usable; + u8 reg[GBCODEC_REG_COUNT]; + int registered; + + int num_kcontrols; + int num_dapm_widgets; + int num_dapm_routes; + struct snd_kcontrol_new *kctls; + struct snd_soc_dapm_widget *widgets; + struct snd_soc_dapm_route *routes; + struct mutex lock; +}; + +extern int gb_audio_gb_get_topology(struct gb_connection *connection, + struct gb_audio_topology **topology); +extern int gb_audio_gb_get_control(struct gb_connection *connection, + uint8_t control_id, uint8_t index, + struct gb_audio_ctl_elem_value *value); +extern int gb_audio_gb_set_control(struct gb_connection *connection, + uint8_t control_id, uint8_t index, + struct gb_audio_ctl_elem_value *value); +extern int gb_audio_gb_enable_widget(struct gb_connection *connection, + uint8_t widget_id); +extern int gb_audio_gb_disable_widget(struct gb_connection *connection, + uint8_t widget_id); +extern int gb_audio_gb_get_pcm(struct gb_connection *connection, + uint16_t data_cport, uint32_t *format, + uint32_t *rate, uint8_t *channels, + uint8_t *sig_bits); +extern int gb_audio_gb_set_pcm(struct gb_connection *connection, + uint16_t data_cport, uint32_t format, + uint32_t rate, uint8_t channels, + uint8_t sig_bits); +extern int gb_audio_gb_set_tx_data_size(struct gb_connection *connection, + uint16_t data_cport, uint16_t size); +extern int gb_audio_gb_get_tx_delay(struct gb_connection *connection, + uint16_t data_cport, uint32_t *delay); +extern int gb_audio_gb_activate_tx(struct gb_connection *connection, + uint16_t data_cport); +extern int gb_audio_gb_deactivate_tx(struct gb_connection *connection, + uint16_t data_cport); +extern int gb_audio_gb_set_rx_data_size(struct gb_connection *connection, + uint16_t data_cport, uint16_t size); +extern int gb_audio_gb_get_rx_delay(struct gb_connection *connection, + uint16_t data_cport, uint32_t *delay); +extern int gb_audio_gb_activate_rx(struct gb_connection *connection, + uint16_t data_cport); +extern int gb_audio_gb_deactivate_rx(struct gb_connection *connection, + uint16_t data_cport); +extern int gb_audio_apbridgea_set_config(struct gb_connection *connection, + __u16 i2s_port, __u32 format, + __u32 rate, __u32 mclk_freq); +extern int gb_audio_apbridgea_register_cport(struct gb_connection *connection, + __u16 i2s_port, __u16 cportid); +extern int gb_audio_apbridgea_unregister_cport(struct gb_connection *connection, + __u16 i2s_port, __u16 cportid); +extern int gb_audio_apbridgea_set_tx_data_size(struct gb_connection *connection, + __u16 i2s_port, __u16 size); +extern int gb_audio_apbridgea_get_tx_delay(struct gb_connection *connection, + __u16 i2s_port, __u32 *delay); +extern int gb_audio_apbridgea_start_tx(struct gb_connection *connection, + __u16 i2s_port, __u64 timestamp); +extern int gb_audio_apbridgea_stop_tx(struct gb_connection *connection, + __u16 i2s_port); +extern int gb_audio_apbridgea_set_rx_data_size(struct gb_connection *connection, + __u16 i2s_port, __u16 size); +extern int gb_audio_apbridgea_get_rx_delay(struct gb_connection *connection, + __u16 i2s_port, __u32 *delay); +extern int gb_audio_apbridgea_start_rx(struct gb_connection *connection, + __u16 i2s_port); +extern int gb_audio_apbridgea_stop_rx(struct gb_connection *connection, + __u16 i2s_port); + +#endif /* __LINUX_GBAUDIO_CODEC_H */ |