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Diffstat (limited to 'include/soc/sprd/i2s.h')
| -rw-r--r-- | include/soc/sprd/i2s.h | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/include/soc/sprd/i2s.h b/include/soc/sprd/i2s.h new file mode 100644 index 00000000..9af57f81 --- /dev/null +++ b/include/soc/sprd/i2s.h @@ -0,0 +1,135 @@ +/* + * sound/soc/sprd/dai/i2s/i2s.h + * + * SPRD SoC CPU-DAI -- SpreadTrum SOC DAI i2s. + * + * Copyright (C) 2012 SpreadTrum Ltd. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ +#ifndef __I2S_H +#define __I2S_H + +#include <soc/sprd/sprd-audio.h> +#include <linux/string.h> +#include <linux/io.h> +#include <sound/info.h> +#include <sound/core.h> +#include <sound/soc.h> + + +#define I2S_VERSION "i2s.r0p0" + +#define I2S_MAGIC_ID (0x124) + +/* bus_type */ +#define I2S_BUS 0 +#define PCM_BUS 1 + +/* byte_per_chan */ +#define I2S_BPCH_8 0 +#define I2S_BPCH_16 1 +#define I2S_BPCH_32 2 + +/* mode */ +#define I2S_MASTER 0 +#define I2S_SLAVE 1 + +/* lsb */ +#define I2S_MSB 0 +#define I2S_LSB 1 + +/* rtx_mode */ +#define I2S_RTX_DIS 0 +#define I2S_RX_MODE 1 +#define I2S_TX_MODE 2 +#define I2S_RTX_MODE 3 + +/* sync_mode */ +#define I2S_LRCK 0 +#define I2S_SYNC 1 + +/* lrck_inv */ +#define I2S_L_LEFT 0 +#define I2S_L_RIGTH 1 + +/* clk_inv */ +#define I2S_CLK_N 0 +#define I2S_CLK_R 1 + +/* i2s_bus_mode */ +#define I2S_MSBJUSTFIED 0 +#define I2S_COMPATIBLE 1 + +/* pcm_bus_mode */ +#define I2S_LONG_FRAME 0 +#define I2S_SHORT_FRAME 1 + +struct i2s_config { + u32 hw_port; + u32 fs; + u32 slave_timeout; + u32 bus_type:1; + u32 byte_per_chan:2; + u32 mode:1; + u32 lsb:1; + u32 rtx_mode:2; + u32 sync_mode:1; + u32 lrck_inv:1; + u32 clk_inv:2; + u32 i2s_bus_mode:1; + u32 pcm_bus_mode:1; + u32 pcm_slot:3; + u16 pcm_cycle; + u16 tx_watermark; + u16 rx_watermark; +}; + +/* -------------------------- */ +#define I2S_FIFO_DEPTH 32 + +/**********i2s-debug*********/ +#define SAMPLATE_MIN 8000 +#define SAMPLATE_MAX 96000 + + +#define FUN_REG(f) ((unsigned short)(-((f) + 1))) +enum { + FS = 0, + HW_PROT, + SLAVE_TIMEOUT, + BUS_TYPE, + BYTE_PER_CHAN, + MODE, + LSB, + TRX_MODE, + LRCK_INV, + SYNC_MODE, + CLK_INV, + I2S_BUS_MODE, + PCM_BUS_MODE, + PCM_SLOT, + PCM_CYCLE, + TX_WATERMARK, + RX_WATERMARK, + I2S_CONFIG_MAX +}; +void i2s_debug_write(struct snd_info_entry *entry, + struct snd_info_buffer *buffer); +void i2s_debug_read(struct snd_info_entry *entry, + struct snd_info_buffer *buffer); +void i2s_register_proc_read(struct snd_info_entry *entry, + struct snd_info_buffer *buffer); +int i2s_config_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol); +int i2s_config_set(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol); + +#endif /* __I2S_H */ |