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-rw-r--r--sound/soc/sh/siu.h193
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diff --git a/sound/soc/sh/siu.h b/sound/soc/sh/siu.h
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1/*
2 * siu.h - ALSA SoC driver for Renesas SH7343, SH7722 SIU peripheral.
3 *
4 * Copyright (C) 2009-2010 Guennadi Liakhovetski <g.liakhovetski@gmx.de>
5 * Copyright (C) 2006 Carlos Munoz <carlos@kenati.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 as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 */
21
22#ifndef SIU_H
23#define SIU_H
24
25/* Common kernel and user-space firmware-building defines and types */
26
27#define YRAM0_SIZE (0x0040 / 4) /* 16 */
28#define YRAM1_SIZE (0x0080 / 4) /* 32 */
29#define YRAM2_SIZE (0x0040 / 4) /* 16 */
30#define YRAM3_SIZE (0x0080 / 4) /* 32 */
31#define YRAM4_SIZE (0x0080 / 4) /* 32 */
32#define YRAM_DEF_SIZE (YRAM0_SIZE + YRAM1_SIZE + YRAM2_SIZE + \
33 YRAM3_SIZE + YRAM4_SIZE)
34#define YRAM_FIR_SIZE (0x0400 / 4) /* 256 */
35#define YRAM_IIR_SIZE (0x0200 / 4) /* 128 */
36
37#define XRAM0_SIZE (0x0400 / 4) /* 256 */
38#define XRAM1_SIZE (0x0200 / 4) /* 128 */
39#define XRAM2_SIZE (0x0200 / 4) /* 128 */
40
41/* PRAM program array size */
42#define PRAM0_SIZE (0x0100 / 4) /* 64 */
43#define PRAM1_SIZE ((0x2000 - 0x0100) / 4) /* 1984 */
44
45#include <linux/types.h>
46
47struct siu_spb_param {
48 __u32 ab1a; /* input FIFO address */
49 __u32 ab0a; /* output FIFO address */
50 __u32 dir; /* 0=the ather except CPUOUTPUT, 1=CPUINPUT */
51 __u32 event; /* SPB program starting conditions */
52 __u32 stfifo; /* STFIFO register setting value */
53 __u32 trdat; /* TRDAT register setting value */
54};
55
56struct siu_firmware {
57 __u32 yram_fir_coeff[YRAM_FIR_SIZE];
58 __u32 pram0[PRAM0_SIZE];
59 __u32 pram1[PRAM1_SIZE];
60 __u32 yram0[YRAM0_SIZE];
61 __u32 yram1[YRAM1_SIZE];
62 __u32 yram2[YRAM2_SIZE];
63 __u32 yram3[YRAM3_SIZE];
64 __u32 yram4[YRAM4_SIZE];
65 __u32 spbpar_num;
66 struct siu_spb_param spbpar[32];
67};
68
69#ifdef __KERNEL__
70
71#include <linux/dmaengine.h>
72#include <linux/interrupt.h>
73#include <linux/io.h>
74
75#include <asm/dmaengine.h>
76
77#include <sound/core.h>
78#include <sound/pcm.h>
79#include <sound/soc-dai.h>
80
81#define SIU_PERIOD_BYTES_MAX 8192 /* DMA transfer/period size */
82#define SIU_PERIOD_BYTES_MIN 256 /* DMA transfer/period size */
83#define SIU_PERIODS_MAX 64 /* Max periods in buffer */
84#define SIU_PERIODS_MIN 4 /* Min periods in buffer */
85#define SIU_BUFFER_BYTES_MAX (SIU_PERIOD_BYTES_MAX * SIU_PERIODS_MAX)
86
87/* SIU ports: only one can be used at a time */
88enum {
89 SIU_PORT_A,
90 SIU_PORT_B,
91 SIU_PORT_NUM,
92};
93
94/* SIU clock configuration */
95enum {
96 SIU_CLKA_PLL,
97 SIU_CLKA_EXT,
98 SIU_CLKB_PLL,
99 SIU_CLKB_EXT
100};
101
102struct siu_info {
103 int port_id;
104 u32 __iomem *pram;
105 u32 __iomem *xram;
106 u32 __iomem *yram;
107 u32 __iomem *reg;
108 struct siu_firmware fw;
109};
110
111struct siu_stream {
112 struct tasklet_struct tasklet;
113 struct snd_pcm_substream *substream;
114 snd_pcm_format_t format;
115 size_t buf_bytes;
116 size_t period_bytes;
117 int cur_period; /* Period currently in dma */
118 u32 volume;
119 snd_pcm_sframes_t xfer_cnt; /* Number of frames */
120 u8 rw_flg; /* transfer status */
121 /* DMA status */
122 struct dma_chan *chan; /* DMA channel */
123 struct dma_async_tx_descriptor *tx_desc;
124 dma_cookie_t cookie;
125 struct sh_dmae_slave param;
126};
127
128struct siu_port {
129 unsigned long play_cap; /* Used to track full duplex */
130 struct snd_pcm *pcm;
131 struct siu_stream playback;
132 struct siu_stream capture;
133 u32 stfifo; /* STFIFO value from firmware */
134 u32 trdat; /* TRDAT value from firmware */
135};
136
137extern struct siu_port *siu_ports[SIU_PORT_NUM];
138
139static inline struct siu_port *siu_port_info(struct snd_pcm_substream *substream)
140{
141 struct platform_device *pdev =
142 to_platform_device(substream->pcm->card->dev);
143 return siu_ports[pdev->id];
144}
145
146/* Register access */
147static inline void siu_write32(u32 __iomem *addr, u32 val)
148{
149 __raw_writel(val, addr);
150}
151
152static inline u32 siu_read32(u32 __iomem *addr)
153{
154 return __raw_readl(addr);
155}
156
157/* SIU registers */
158#define SIU_IFCTL (0x000 / sizeof(u32))
159#define SIU_SRCTL (0x004 / sizeof(u32))
160#define SIU_SFORM (0x008 / sizeof(u32))
161#define SIU_CKCTL (0x00c / sizeof(u32))
162#define SIU_TRDAT (0x010 / sizeof(u32))
163#define SIU_STFIFO (0x014 / sizeof(u32))
164#define SIU_DPAK (0x01c / sizeof(u32))
165#define SIU_CKREV (0x020 / sizeof(u32))
166#define SIU_EVNTC (0x028 / sizeof(u32))
167#define SIU_SBCTL (0x040 / sizeof(u32))
168#define SIU_SBPSET (0x044 / sizeof(u32))
169#define SIU_SBFSTS (0x068 / sizeof(u32))
170#define SIU_SBDVCA (0x06c / sizeof(u32))
171#define SIU_SBDVCB (0x070 / sizeof(u32))
172#define SIU_SBACTIV (0x074 / sizeof(u32))
173#define SIU_DMAIA (0x090 / sizeof(u32))
174#define SIU_DMAIB (0x094 / sizeof(u32))
175#define SIU_DMAOA (0x098 / sizeof(u32))
176#define SIU_DMAOB (0x09c / sizeof(u32))
177#define SIU_DMAML (0x0a0 / sizeof(u32))
178#define SIU_SPSTS (0x0cc / sizeof(u32))
179#define SIU_SPCTL (0x0d0 / sizeof(u32))
180#define SIU_BRGASEL (0x100 / sizeof(u32))
181#define SIU_BRRA (0x104 / sizeof(u32))
182#define SIU_BRGBSEL (0x108 / sizeof(u32))
183#define SIU_BRRB (0x10c / sizeof(u32))
184
185extern struct snd_soc_platform siu_platform;
186extern struct snd_soc_dai siu_i2s_dai;
187
188int siu_init_port(int port, struct siu_port **port_info, struct snd_card *card);
189void siu_free_port(struct siu_port *port_info);
190
191#endif
192
193#endif /* SIU_H */
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-21 09:23:45 -0500