diff options
Diffstat (limited to 'sound/arm/u8500_alsa_ab8500.h')
| -rw-r--r-- | sound/arm/u8500_alsa_ab8500.h | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/sound/arm/u8500_alsa_ab8500.h b/sound/arm/u8500_alsa_ab8500.h new file mode 100644 index 00000000000..dda802c2156 --- /dev/null +++ b/sound/arm/u8500_alsa_ab8500.h @@ -0,0 +1,165 @@ +/* + * Copyright (C) ST-Ericsson SA 2010 + * + * Author: Deepak Karda + * for ST-Ericsson. + * + * License terms: + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + */ + +#ifndef _U8500_ALSA_H_ +#define _U8500_ALSA_H_ + +#ifdef CONFIG_U8500_AB8500_CUT10 +#include <mach/ab8500_codec_v1_0.h> +//#include <mach/ab8500_codec_p_v1_0.h> +#else +//#include <mach/ab8500_codec_p.h> +#include <mach/ab8500_codec.h> +#endif +#include <mach/u8500_acodec_ab8500.h> + +#define DEFAULT_SAMPLE_RATE 48000 +#define NMDK_BUFFER_SIZE (64*1024) +#define U8500_ALSA_DRIVER "u8500_alsa" + +#define MAX_NUMBER_OF_DEVICES 3 /* ALSA_PCM, ALSA_BT, ALSA_HDMI */ +#define MAX_NUMBER_OF_STREAMS 2 /* PLAYBACK, CAPTURE */ + +#define ALSA_PCM_DEV 0 +#define ALSA_BT_DEV 2 +#define ALSA_HDMI_DEV 1 + +/* Debugging stuff */ +#ifndef CONFIG_DEBUG_USER +#define DEBUG_LEVEL 0 +#else +#define DEBUG_LEVEL 10 +#endif + +#if DEBUG_LEVEL > 0 +static int u8500_acodec_debug = DEBUG_LEVEL; +#define DEBUG(n, args...) do { if (u8500_acodec_debug>(n)) printk(args); } while (0) +#else +#define DEBUG(n, args...) do { } while (0) +#endif +enum alsa_state { + ALSA_STATE_PAUSE, + ALSA_STATE_UNPAUSE +}; + +/* audio stream definition */ +typedef struct audio_stream_s { + char id[64]; /* module identifier string */ + int stream_id; /* stream identifier */ + int status; + int active; /* we are using this stream for transfer now */ + int period; /* current transfer period */ + int periods; /* current count of periods registerd in the DMA engine */ + enum alsa_state state; + unsigned int old_offset; + struct snd_pcm_substream *substream; + unsigned int exchId; + snd_pcm_uframes_t played_frame; + struct semaphore alsa_sem; + struct completion alsa_com; + +} audio_stream_t; + +typedef struct hdmi_params_s { + int sampling_freq; + int channel_count; +} hdmi_params_t; + +/* chip structure definition */ +typedef struct u8500_acodec_s { + struct snd_card *card; + struct snd_pcm *pcm; + struct snd_pcm *pcm_hdmi; + struct snd_pcm *pcm_bt; + unsigned int freq; + unsigned int channels; + unsigned int input_lvolume; + unsigned int input_rvolume; + unsigned int output_lvolume; + unsigned int output_rvolume; + t_ab8500_codec_src input_device; + t_ab8500_codec_dest output_device; + t_u8500_bool_state analog_lpbk; + t_u8500_bool_state digital_lpbk; + t_u8500_bool_state playback_switch; + t_u8500_bool_state capture_switch; + t_u8500_bool_state tdm8_ch_mode; + t_u8500_bool_state direct_rendering_mode; + t_u8500_pmc_rendering_state burst_fifo_mode; + t_u8500_pmc_rendering_state fm_playback_mode; + t_u8500_pmc_rendering_state fm_tx_mode; + audio_stream_t stream[MAX_NUMBER_OF_DEVICES][MAX_NUMBER_OF_STREAMS]; + hdmi_params_t hdmi_params; +} u8500_acodec_chip_t; + +void u8500_alsa_dma_start(audio_stream_t * stream); + +#if (defined(CONFIG_U8500_ACODEC_DMA) || defined(CONFIG_U8500_ACODEC_INTR)) + +#define stm_trigger_alsa(x) u8500_alsa_dma_start(x) +static void inline stm_pause_alsa(audio_stream_t * stream) +{ + if (stream->state == ALSA_STATE_UNPAUSE) { + stream->state = ALSA_STATE_PAUSE; + } + +} +static void inline stm_unpause_alsa(audio_stream_t * stream) +{ + if (stream->state == ALSA_STATE_PAUSE) { + stream->state = ALSA_STATE_UNPAUSE; + stm_trigger_alsa(stream); + } +} +static void inline stm_stop_alsa(audio_stream_t * stream) +{ + stream->active = 0; + stream->period = 0; + +} +static void inline stm_hw_free(struct snd_pcm_substream *substream) +{ + snd_pcm_lib_free_pages(substream); +} + +#define stm_close_alsa(x, y,z) +#define stm_config_hw(w,x, y, z) 0 + +#else ////// CONFIG_U8500_ACODEC_POLL //////////// + +int spawn_acodec_feeding_thread(audio_stream_t * stream); +//static int configure_dmadev_acodec(struct snd_pcm_substream *substream); + +#define stm_trigger_alsa(x) spawn_acodec_feeding_thread(x) +#define stm_close_alsa(x, y,z) +#define stm_config_hw(w,x, y, z) 0 +#define stm_hw_free(x) +static void inline stm_pause_alsa(audio_stream_t * stream) +{ + stream->state = ALSA_STATE_PAUSE; +} +static void inline stm_unpause_alsa(audio_stream_t * stream) +{ + stream->state = ALSA_STATE_UNPAUSE; + complete(&stream->alsa_com); +} +static void inline stm_stop_alsa(audio_stream_t * stream) +{ + stream->active = 0; + stream->period = 0; + if (stream->state == ALSA_STATE_PAUSE) + complete(&stream->alsa_com); +} + +#endif +#endif /*END OF HEADER FILE */ |