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/*
*
* arch/arm/mach-tegra/include/mach/audio_switch.h
*
* Header and functions for audio switch and apbif module
*
* Copyright (c) 2010-2011, NVIDIA Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef __ARCH_ARM_MACH_AUDIO_SWITCH_H
#define __ARCH_ARM_MACH_AUDIO_SWITCH_H
#include <linux/kernel.h>
#include <linux/types.h>
#define AUDIOCIF_EXPAND_ZERO 0
#define AUDIOCIF_EXPAND_ONE 1
#define AUDIOCIF_EXPAND_LFSR 2
/* generic macro to set modes */
#define set_reg_mode(r,m,v) { \
((r) &= (~(m))); \
((r) |= (v)?(m):(0)); \
}
typedef enum ahubtx_
{
ahubtx0_apbif = 0,
ahubtx1_apbif,
ahubtx2_apbif,
ahubtx3_apbif,
ahubtx_i2s0,
ahubtx_i2s1,
ahubtx_i2s2,
ahubtx_i2s3,
ahubtx_i2s4,
ahubtx_dam0,
ahubtx_dam1,
ahubtx_dam2,
ahubtx0_spdif,
ahubtx1_spdif,
ahubtx_maxnum
} ahubtx;
typedef enum ahubrx_
{
ahubrx0_apbif = 0x0,
ahubrx1_apbif,
ahubrx2_apbif,
ahubrx3_apbif,
ahubrx_i2s0,
ahubrx_i2s1,
ahubrx_i2s2,
ahubrx_i2s3,
ahubrx_i2s4,
ahubrx0_dam0,
ahubrx1_dam0,
ahubrx0_dam1,
ahubrx1_dam1,
ahubrx0_dam2,
ahubrx1_dam2,
ahubrx0_spdif,
ahubrx1_spdif,
ahubrx_maxnum
} ahubrx;
typedef enum dam_chtype_
{
dam_ch_in0 = 0x0,
dam_ch_in1,
dam_ch_out,
dam_ch_maxnum
}dam_chtype;
struct audio_cif
{
int threshold;
int audio_channels;
int client_channels;
int audio_bits;
int client_bits;
int expand;
int stereo_conv;
int replicate;
int direction;
int truncate;
int mono_conv;
};
/*
* API
*/
void apbif_dump_registers(int ifc);
void audio_switch_dump_registers(int ifc);
int apbif_get_fifo_mode(int ifc, int tx);
int apbif_get_fifo_freecount(int ifc, int tx);
phys_addr_t apbif_get_fifo_phy_base(int ifc, int tx);
int apbif_fifo_set_attention_level(int ifc, int tx, unsigned level);
void apbif_set_pack_mode(int ifc, int tx, int pack_mode);
void apbif_channel_set_loopback(int ifc, int on);
void apbif_channel_enable(int ifc, int tx, int enable);
int apbif_get_channel(int regindex, int fifo_mode);
void apbif_soft_reset(int ifc, int fifo_mode, int enable);
void apbif_fifo_write(int ifc, int fifo_mode, u32 data);
u32 apbif_fifo_read(int ifc, int fifo_mode);
void audio_switch_set_acif(int addr, struct audio_cif *cifInfo);
int audio_switch_get_rx_port(int rxport);
void audio_switch_set_rx_port(int rxport, int txport);
void audio_switch_clear_rx_port(int rxport);
int audio_apbif_free_channel(int ifc, int fifo_mode);
int audio_apbif_set_acif(int ifc, int fifo_mode, struct audio_cif *cifInfo);
int audio_switch_close(void);
int audio_switch_open(void);
int audio_switch_suspend(void);
int audio_switch_resume(void);
int audio_switch_enable_clock(void);
void audio_switch_disable_clock(void);
void dam_enable(int ifc, int on, int chtype);
void dam_set_samplerate(int ifc, int chtype, int samplerate);
/* FIXME: move to dam.h if needed */
int dam_open(void);
int dam_close(void);
int dam_set_acif(int ifc, int chtype, struct audio_cif *cifInfo);
int dam_get_controller(int chtype);
int dam_free_controller(int ifc, int chtype);
int dam_suspend(int ifc);
int dam_resume(int ifc);
int dam_set_clock_rate(int rate);
int dam_set_clock_parent(int ifc, int parent);
int dam_enable_clock(int ifc);
void dam_disable_clock(int ifc);
int dam_free_dma_requestor(int ifc, int chtype, int fifo_mode);
int dam_get_dma_requestor(int ifc, int chtype, int fifo_mode);
int dam_set_gain(int ifc, int chtype, int gain);
#endif /* __ARCH_ARM_MACH_AUDIO_SWITCH_H */
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