1/*
  2 * Renesas R-Car SRU/SCU/SSIU/SSI support
  3 *
  4 * Copyright (C) 2013 Renesas Solutions Corp.
  5 * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
  6 *
  7 * This program is free software; you can redistribute it and/or modify
  8 * it under the terms of the GNU General Public License version 2 as
  9 * published by the Free Software Foundation.
 10 */
 11
 12#ifndef RCAR_SND_H
 13#define RCAR_SND_H
 14
 15#include <linux/sh_clk.h>
 16
 17#define RSND_GEN1_SRU	0
 18#define RSND_GEN1_ADG	1
 19#define RSND_GEN1_SSI	2
 20
 21#define RSND_GEN2_SCU	0
 22#define RSND_GEN2_ADG	1
 23#define RSND_GEN2_SSIU	2
 24#define RSND_GEN2_SSI	3
 25
 26#define RSND_BASE_MAX	4
 27
 28/*
 29 * flags
 30 *
 31 * 0xAB000000
 32 *
 33 * A : clock sharing settings
 34 * B : SSI direction
 35 */
 36#define RSND_SSI_CLK_PIN_SHARE		(1 << 31)
 37#define RSND_SSI_PLAY			(1 << 24)
 38
 39#define RSND_SSI(_dma_id, _pio_irq, _flags)		\
 40{ .dma_id = _dma_id, .pio_irq = _pio_irq, .flags = _flags }
 41#define RSND_SSI_SET(_dai_id, _dma_id, _pio_irq, _flags)	\
 42{ .dai_id = _dai_id, .dma_id = _dma_id, .pio_irq = _pio_irq, .flags = _flags }
 43#define RSND_SSI_UNUSED \
 44{ .dai_id = -1, .dma_id = -1, .pio_irq = -1, .flags = 0 }
 45
 46struct rsnd_ssi_platform_info {
 47	int dai_id;	/* will be removed */
 48	int dma_id;
 49	int pio_irq;
 50	u32 flags;
 51};
 52
 53/*
 54 * flags
 55 */
 56#define RSND_SCU_USE_HPBIF		(1 << 31) /* it needs RSND_SSI_DEPENDENT */
 57
 58#define RSND_SRC(rate, _dma_id)						\
 59{ .flags = RSND_SCU_USE_HPBIF, .convert_rate = rate, .dma_id = _dma_id, }
 60#define RSND_SRC_SET(rate, _dma_id)		\
 61	{ .flags = RSND_SCU_USE_HPBIF, .convert_rate = rate, .dma_id = _dma_id, }
 62#define RSND_SRC_UNUSED				\
 63	{ .flags = 0, .convert_rate = 0, .dma_id = 0, }
 64
 65#define rsnd_scu_platform_info	rsnd_src_platform_info
 66#define src_info		scu_info
 67#define src_info_nr		scu_info_nr
 68
 69struct rsnd_src_platform_info {
 70	u32 flags;
 71	u32 convert_rate; /* sampling rate convert */
 72	int dma_id; /* for Gen2 SCU */
 73};
 74
 75struct rsnd_dai_path_info {
 76	struct rsnd_ssi_platform_info *ssi;
 77	struct rsnd_src_platform_info *src;
 78};
 79
 80struct rsnd_dai_platform_info {
 81	struct rsnd_dai_path_info playback;
 82	struct rsnd_dai_path_info capture;
 83};
 84
 85/*
 86 * flags
 87 *
 88 * 0x0000000A
 89 *
 90 * A : generation
 91 */
 92#define RSND_GEN_MASK	(0xF << 0)
 93#define RSND_GEN1	(1 << 0) /* fixme */
 94#define RSND_GEN2	(2 << 0) /* fixme */
 95
 96struct rcar_snd_info {
 97	u32 flags;
 98	struct rsnd_ssi_platform_info *ssi_info;
 99	int ssi_info_nr;
100	struct rsnd_src_platform_info *src_info;
101	int src_info_nr;
102	struct rsnd_dai_platform_info *dai_info;
103	int dai_info_nr;
104	int (*start)(int id);
105	int (*stop)(int id);
106};
107
108#endif