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1a59d1b8 | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
3a9cf8ef | 2 | /* |
9d7dd6cd | 3 | * Copyright (ST) 2012 Rajeev Kumar (rajeevkumar.linux@gmail.com) |
3a9cf8ef RK |
4 | */ |
5 | ||
6 | #ifndef __SOUND_DESIGNWARE_I2S_H | |
7 | #define __SOUND_DESIGNWARE_I2S_H | |
8 | ||
9 | #include <linux/dmaengine.h> | |
10 | #include <linux/types.h> | |
11 | ||
12 | /* | |
13 | * struct i2s_clk_config_data - represent i2s clk configuration data | |
14 | * @chan_nr: number of channel | |
15 | * @data_width: number of bits per sample (8/16/24/32 bit) | |
16 | * @sample_rate: sampling frequency (8Khz, 16Khz, 32Khz, 44Khz, 48Khz) | |
17 | */ | |
18 | struct i2s_clk_config_data { | |
19 | int chan_nr; | |
20 | u32 data_width; | |
21 | u32 sample_rate; | |
22 | }; | |
23 | ||
24 | struct i2s_platform_data { | |
25 | #define DWC_I2S_PLAY (1 << 0) | |
26 | #define DWC_I2S_RECORD (1 << 1) | |
1d957d86 MSB |
27 | #define DW_I2S_SLAVE (1 << 2) |
28 | #define DW_I2S_MASTER (1 << 3) | |
3a9cf8ef RK |
29 | unsigned int cap; |
30 | int channel; | |
31 | u32 snd_fmts; | |
32 | u32 snd_rates; | |
33 | ||
e164835a | 34 | #define DW_I2S_QUIRK_COMP_REG_OFFSET (1 << 0) |
a242cac1 | 35 | #define DW_I2S_QUIRK_COMP_PARAM1 (1 << 1) |
286345ee | 36 | #define DW_I2S_QUIRK_16BIT_IDX_OVERRIDE (1 << 2) |
e164835a MSB |
37 | unsigned int quirks; |
38 | unsigned int i2s_reg_comp1; | |
39 | unsigned int i2s_reg_comp2; | |
40 | ||
3a9cf8ef RK |
41 | void *play_dma_data; |
42 | void *capture_dma_data; | |
43 | bool (*filter)(struct dma_chan *chan, void *slave); | |
44 | int (*i2s_clk_cfg)(struct i2s_clk_config_data *config); | |
45 | }; | |
46 | ||
47 | struct i2s_dma_data { | |
48 | void *data; | |
49 | dma_addr_t addr; | |
50 | u32 max_burst; | |
51 | enum dma_slave_buswidth addr_width; | |
52 | bool (*filter)(struct dma_chan *chan, void *slave); | |
53 | }; | |
54 | ||
55 | /* I2S DMA registers */ | |
56 | #define I2S_RXDMA 0x01C0 | |
57 | #define I2S_TXDMA 0x01C8 | |
58 | ||
59 | #define TWO_CHANNEL_SUPPORT 2 /* up to 2.0 */ | |
60 | #define FOUR_CHANNEL_SUPPORT 4 /* up to 3.1 */ | |
61 | #define SIX_CHANNEL_SUPPORT 6 /* up to 5.1 */ | |
62 | #define EIGHT_CHANNEL_SUPPORT 8 /* up to 7.1 */ | |
63 | ||
64 | #endif /* __SOUND_DESIGNWARE_I2S_H */ |