Commit | Line | Data |
---|---|---|
4e6fdaf1 KM |
1 | // SPDX-License-Identifier: GPL-2.0+ |
2 | // | |
3 | // siu.h - ALSA SoC driver for Renesas SH7343, SH7722 SIU peripheral. | |
4 | // | |
5 | // Copyright (C) 2009-2010 Guennadi Liakhovetski <g.liakhovetski@gmx.de> | |
6 | // Copyright (C) 2006 Carlos Munoz <carlos@kenati.com> | |
895d4509 GL |
7 | |
8 | #ifndef SIU_H | |
9 | #define SIU_H | |
10 | ||
11 | /* Common kernel and user-space firmware-building defines and types */ | |
12 | ||
13 | #define YRAM0_SIZE (0x0040 / 4) /* 16 */ | |
14 | #define YRAM1_SIZE (0x0080 / 4) /* 32 */ | |
15 | #define YRAM2_SIZE (0x0040 / 4) /* 16 */ | |
16 | #define YRAM3_SIZE (0x0080 / 4) /* 32 */ | |
17 | #define YRAM4_SIZE (0x0080 / 4) /* 32 */ | |
18 | #define YRAM_DEF_SIZE (YRAM0_SIZE + YRAM1_SIZE + YRAM2_SIZE + \ | |
19 | YRAM3_SIZE + YRAM4_SIZE) | |
20 | #define YRAM_FIR_SIZE (0x0400 / 4) /* 256 */ | |
21 | #define YRAM_IIR_SIZE (0x0200 / 4) /* 128 */ | |
22 | ||
23 | #define XRAM0_SIZE (0x0400 / 4) /* 256 */ | |
24 | #define XRAM1_SIZE (0x0200 / 4) /* 128 */ | |
25 | #define XRAM2_SIZE (0x0200 / 4) /* 128 */ | |
26 | ||
27 | /* PRAM program array size */ | |
28 | #define PRAM0_SIZE (0x0100 / 4) /* 64 */ | |
29 | #define PRAM1_SIZE ((0x2000 - 0x0100) / 4) /* 1984 */ | |
30 | ||
31 | #include <linux/types.h> | |
32 | ||
33 | struct siu_spb_param { | |
34 | __u32 ab1a; /* input FIFO address */ | |
35 | __u32 ab0a; /* output FIFO address */ | |
36 | __u32 dir; /* 0=the ather except CPUOUTPUT, 1=CPUINPUT */ | |
37 | __u32 event; /* SPB program starting conditions */ | |
38 | __u32 stfifo; /* STFIFO register setting value */ | |
39 | __u32 trdat; /* TRDAT register setting value */ | |
40 | }; | |
41 | ||
42 | struct siu_firmware { | |
43 | __u32 yram_fir_coeff[YRAM_FIR_SIZE]; | |
44 | __u32 pram0[PRAM0_SIZE]; | |
45 | __u32 pram1[PRAM1_SIZE]; | |
46 | __u32 yram0[YRAM0_SIZE]; | |
47 | __u32 yram1[YRAM1_SIZE]; | |
48 | __u32 yram2[YRAM2_SIZE]; | |
49 | __u32 yram3[YRAM3_SIZE]; | |
50 | __u32 yram4[YRAM4_SIZE]; | |
51 | __u32 spbpar_num; | |
52 | struct siu_spb_param spbpar[32]; | |
53 | }; | |
54 | ||
55 | #ifdef __KERNEL__ | |
56 | ||
57 | #include <linux/dmaengine.h> | |
58 | #include <linux/interrupt.h> | |
59 | #include <linux/io.h> | |
10440af1 | 60 | #include <linux/sh_dma.h> |
895d4509 GL |
61 | |
62 | #include <sound/core.h> | |
63 | #include <sound/pcm.h> | |
0d911bae | 64 | #include <sound/soc.h> |
895d4509 GL |
65 | |
66 | #define SIU_PERIOD_BYTES_MAX 8192 /* DMA transfer/period size */ | |
67 | #define SIU_PERIOD_BYTES_MIN 256 /* DMA transfer/period size */ | |
68 | #define SIU_PERIODS_MAX 64 /* Max periods in buffer */ | |
69 | #define SIU_PERIODS_MIN 4 /* Min periods in buffer */ | |
70 | #define SIU_BUFFER_BYTES_MAX (SIU_PERIOD_BYTES_MAX * SIU_PERIODS_MAX) | |
71 | ||
72 | /* SIU ports: only one can be used at a time */ | |
73 | enum { | |
74 | SIU_PORT_A, | |
75 | SIU_PORT_B, | |
76 | SIU_PORT_NUM, | |
77 | }; | |
78 | ||
79 | /* SIU clock configuration */ | |
80 | enum { | |
81 | SIU_CLKA_PLL, | |
82 | SIU_CLKA_EXT, | |
83 | SIU_CLKB_PLL, | |
84 | SIU_CLKB_EXT | |
85 | }; | |
86 | ||
c6834dd2 | 87 | struct device; |
895d4509 | 88 | struct siu_info { |
c6834dd2 | 89 | struct device *dev; |
895d4509 GL |
90 | int port_id; |
91 | u32 __iomem *pram; | |
92 | u32 __iomem *xram; | |
93 | u32 __iomem *yram; | |
94 | u32 __iomem *reg; | |
95 | struct siu_firmware fw; | |
96 | }; | |
97 | ||
98 | struct siu_stream { | |
99 | struct tasklet_struct tasklet; | |
100 | struct snd_pcm_substream *substream; | |
101 | snd_pcm_format_t format; | |
102 | size_t buf_bytes; | |
103 | size_t period_bytes; | |
104 | int cur_period; /* Period currently in dma */ | |
105 | u32 volume; | |
106 | snd_pcm_sframes_t xfer_cnt; /* Number of frames */ | |
107 | u8 rw_flg; /* transfer status */ | |
108 | /* DMA status */ | |
109 | struct dma_chan *chan; /* DMA channel */ | |
110 | struct dma_async_tx_descriptor *tx_desc; | |
111 | dma_cookie_t cookie; | |
112 | struct sh_dmae_slave param; | |
113 | }; | |
114 | ||
115 | struct siu_port { | |
116 | unsigned long play_cap; /* Used to track full duplex */ | |
117 | struct snd_pcm *pcm; | |
118 | struct siu_stream playback; | |
119 | struct siu_stream capture; | |
120 | u32 stfifo; /* STFIFO value from firmware */ | |
121 | u32 trdat; /* TRDAT value from firmware */ | |
122 | }; | |
123 | ||
124 | extern struct siu_port *siu_ports[SIU_PORT_NUM]; | |
125 | ||
126 | static inline struct siu_port *siu_port_info(struct snd_pcm_substream *substream) | |
127 | { | |
128 | struct platform_device *pdev = | |
129 | to_platform_device(substream->pcm->card->dev); | |
130 | return siu_ports[pdev->id]; | |
131 | } | |
132 | ||
133 | /* Register access */ | |
134 | static inline void siu_write32(u32 __iomem *addr, u32 val) | |
135 | { | |
136 | __raw_writel(val, addr); | |
137 | } | |
138 | ||
139 | static inline u32 siu_read32(u32 __iomem *addr) | |
140 | { | |
141 | return __raw_readl(addr); | |
142 | } | |
143 | ||
144 | /* SIU registers */ | |
145 | #define SIU_IFCTL (0x000 / sizeof(u32)) | |
146 | #define SIU_SRCTL (0x004 / sizeof(u32)) | |
147 | #define SIU_SFORM (0x008 / sizeof(u32)) | |
148 | #define SIU_CKCTL (0x00c / sizeof(u32)) | |
149 | #define SIU_TRDAT (0x010 / sizeof(u32)) | |
150 | #define SIU_STFIFO (0x014 / sizeof(u32)) | |
151 | #define SIU_DPAK (0x01c / sizeof(u32)) | |
152 | #define SIU_CKREV (0x020 / sizeof(u32)) | |
153 | #define SIU_EVNTC (0x028 / sizeof(u32)) | |
154 | #define SIU_SBCTL (0x040 / sizeof(u32)) | |
155 | #define SIU_SBPSET (0x044 / sizeof(u32)) | |
156 | #define SIU_SBFSTS (0x068 / sizeof(u32)) | |
157 | #define SIU_SBDVCA (0x06c / sizeof(u32)) | |
158 | #define SIU_SBDVCB (0x070 / sizeof(u32)) | |
159 | #define SIU_SBACTIV (0x074 / sizeof(u32)) | |
160 | #define SIU_DMAIA (0x090 / sizeof(u32)) | |
161 | #define SIU_DMAIB (0x094 / sizeof(u32)) | |
162 | #define SIU_DMAOA (0x098 / sizeof(u32)) | |
163 | #define SIU_DMAOB (0x09c / sizeof(u32)) | |
164 | #define SIU_DMAML (0x0a0 / sizeof(u32)) | |
165 | #define SIU_SPSTS (0x0cc / sizeof(u32)) | |
166 | #define SIU_SPCTL (0x0d0 / sizeof(u32)) | |
167 | #define SIU_BRGASEL (0x100 / sizeof(u32)) | |
168 | #define SIU_BRRA (0x104 / sizeof(u32)) | |
169 | #define SIU_BRGBSEL (0x108 / sizeof(u32)) | |
170 | #define SIU_BRRB (0x10c / sizeof(u32)) | |
171 | ||
be3eabe9 | 172 | extern struct snd_soc_component_driver siu_component; |
f0fba2ad | 173 | extern struct siu_info *siu_i2s_data; |
895d4509 GL |
174 | |
175 | int siu_init_port(int port, struct siu_port **port_info, struct snd_card *card); | |
176 | void siu_free_port(struct siu_port *port_info); | |
177 | ||
178 | #endif | |
179 | ||
180 | #endif /* SIU_H */ |