mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-11 21:36:45 +07:00
ef74940043
This patch adds SRC support to Renesas sound driver. SRC converts sampling rate between codec <-> cpu. It needs special codec chip, or very simple DA/AD converter to use it. This patch was tested via ak4554 codec, and supports Gen1 only at this point. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@linaro.org>
86 lines
1.7 KiB
C
86 lines
1.7 KiB
C
/*
|
|
* Renesas R-Car SRU/SCU/SSIU/SSI support
|
|
*
|
|
* Copyright (C) 2013 Renesas Solutions Corp.
|
|
* Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
|
|
*
|
|
* 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 RCAR_SND_H
|
|
#define RCAR_SND_H
|
|
|
|
#include <linux/sh_clk.h>
|
|
|
|
#define RSND_GEN1_SRU 0
|
|
#define RSND_GEN1_ADG 1
|
|
#define RSND_GEN1_SSI 2
|
|
|
|
#define RSND_GEN2_SCU 0
|
|
#define RSND_GEN2_ADG 1
|
|
#define RSND_GEN2_SSIU 2
|
|
#define RSND_GEN2_SSI 3
|
|
|
|
#define RSND_BASE_MAX 4
|
|
|
|
/*
|
|
* flags
|
|
*
|
|
* 0xAB000000
|
|
*
|
|
* A : clock sharing settings
|
|
* B : SSI direction
|
|
*/
|
|
#define RSND_SSI_CLK_PIN_SHARE (1 << 31)
|
|
#define RSND_SSI_CLK_FROM_ADG (1 << 30) /* clock parent is master */
|
|
#define RSND_SSI_SYNC (1 << 29) /* SSI34_sync etc */
|
|
|
|
#define RSND_SSI_PLAY (1 << 24)
|
|
|
|
#define RSND_SSI_SET(_dai_id, _dma_id, _pio_irq, _flags) \
|
|
{ .dai_id = _dai_id, .dma_id = _dma_id, .pio_irq = _pio_irq, .flags = _flags }
|
|
#define RSND_SSI_UNUSED \
|
|
{ .dai_id = -1, .dma_id = -1, .pio_irq = -1, .flags = 0 }
|
|
|
|
struct rsnd_ssi_platform_info {
|
|
int dai_id;
|
|
int dma_id;
|
|
int pio_irq;
|
|
u32 flags;
|
|
};
|
|
|
|
/*
|
|
* flags
|
|
*/
|
|
#define RSND_SCU_USE_HPBIF (1 << 31) /* it needs RSND_SSI_DEPENDENT */
|
|
|
|
struct rsnd_scu_platform_info {
|
|
u32 flags;
|
|
u32 convert_rate; /* sampling rate convert */
|
|
};
|
|
|
|
/*
|
|
* flags
|
|
*
|
|
* 0x0000000A
|
|
*
|
|
* A : generation
|
|
*/
|
|
#define RSND_GEN_MASK (0xF << 0)
|
|
#define RSND_GEN1 (1 << 0) /* fixme */
|
|
#define RSND_GEN2 (2 << 0) /* fixme */
|
|
|
|
struct rcar_snd_info {
|
|
u32 flags;
|
|
struct rsnd_ssi_platform_info *ssi_info;
|
|
int ssi_info_nr;
|
|
struct rsnd_scu_platform_info *scu_info;
|
|
int scu_info_nr;
|
|
int (*start)(int id);
|
|
int (*stop)(int id);
|
|
};
|
|
|
|
#endif
|