1 /* SPDX-License-Identifier: GPL-2.0-or-later * 1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /* 2 /*
3 * Copyright (ST) 2012 Rajeev Kumar (rajeevkum 3 * Copyright (ST) 2012 Rajeev Kumar (rajeevkumar.linux@gmail.com)
4 */ 4 */
5 5
6 #ifndef __SOUND_DESIGNWARE_I2S_H 6 #ifndef __SOUND_DESIGNWARE_I2S_H
7 #define __SOUND_DESIGNWARE_I2S_H 7 #define __SOUND_DESIGNWARE_I2S_H
8 8
9 #include <linux/dmaengine.h> 9 #include <linux/dmaengine.h>
10 #include <linux/types.h> 10 #include <linux/types.h>
11 11
12 /* 12 /*
13 * struct i2s_clk_config_data - represent i2s 13 * struct i2s_clk_config_data - represent i2s clk configuration data
14 * @chan_nr: number of channel 14 * @chan_nr: number of channel
15 * @data_width: number of bits per sample (8/1 15 * @data_width: number of bits per sample (8/16/24/32 bit)
16 * @sample_rate: sampling frequency (8Khz, 16K 16 * @sample_rate: sampling frequency (8Khz, 16Khz, 32Khz, 44Khz, 48Khz)
17 */ 17 */
18 struct i2s_clk_config_data { 18 struct i2s_clk_config_data {
19 int chan_nr; 19 int chan_nr;
20 u32 data_width; 20 u32 data_width;
21 u32 sample_rate; 21 u32 sample_rate;
22 }; 22 };
23 23
24 struct dw_i2s_dev; <<
25 <<
26 struct i2s_platform_data { 24 struct i2s_platform_data {
27 #define DWC_I2S_PLAY (1 << 0) 25 #define DWC_I2S_PLAY (1 << 0)
28 #define DWC_I2S_RECORD (1 << 1) 26 #define DWC_I2S_RECORD (1 << 1)
29 #define DW_I2S_SLAVE (1 << 2) 27 #define DW_I2S_SLAVE (1 << 2)
30 #define DW_I2S_MASTER (1 << 3) 28 #define DW_I2S_MASTER (1 << 3)
31 unsigned int cap; 29 unsigned int cap;
32 int channel; 30 int channel;
33 u32 snd_fmts; 31 u32 snd_fmts;
34 u32 snd_rates; 32 u32 snd_rates;
35 33
36 #define DW_I2S_QUIRK_COMP_REG_OFFSET 34 #define DW_I2S_QUIRK_COMP_REG_OFFSET (1 << 0)
37 #define DW_I2S_QUIRK_COMP_PARAM1 35 #define DW_I2S_QUIRK_COMP_PARAM1 (1 << 1)
38 #define DW_I2S_QUIRK_16BIT_IDX_OVERRID 36 #define DW_I2S_QUIRK_16BIT_IDX_OVERRIDE (1 << 2)
39 unsigned int quirks; 37 unsigned int quirks;
40 unsigned int i2s_reg_comp1; 38 unsigned int i2s_reg_comp1;
41 unsigned int i2s_reg_comp2; 39 unsigned int i2s_reg_comp2;
42 40
43 void *play_dma_data; 41 void *play_dma_data;
44 void *capture_dma_data; 42 void *capture_dma_data;
45 bool (*filter)(struct dma_chan *chan, 43 bool (*filter)(struct dma_chan *chan, void *slave);
46 int (*i2s_clk_cfg)(struct i2s_clk_conf 44 int (*i2s_clk_cfg)(struct i2s_clk_config_data *config);
47 int (*i2s_pd_init)(struct dw_i2s_dev * <<
48 }; 45 };
49 46
50 struct i2s_dma_data { 47 struct i2s_dma_data {
51 void *data; 48 void *data;
52 dma_addr_t addr; 49 dma_addr_t addr;
53 u32 max_burst; 50 u32 max_burst;
54 enum dma_slave_buswidth addr_width; 51 enum dma_slave_buswidth addr_width;
55 bool (*filter)(struct dma_chan *chan, 52 bool (*filter)(struct dma_chan *chan, void *slave);
56 }; 53 };
57 54
58 /* I2S DMA registers */ 55 /* I2S DMA registers */
59 #define I2S_RXDMA 0x01C0 56 #define I2S_RXDMA 0x01C0
60 #define I2S_TXDMA 0x01C8 57 #define I2S_TXDMA 0x01C8
61 58
62 #define TWO_CHANNEL_SUPPORT 2 /* up 59 #define TWO_CHANNEL_SUPPORT 2 /* up to 2.0 */
63 #define FOUR_CHANNEL_SUPPORT 4 /* up 60 #define FOUR_CHANNEL_SUPPORT 4 /* up to 3.1 */
64 #define SIX_CHANNEL_SUPPORT 6 /* up 61 #define SIX_CHANNEL_SUPPORT 6 /* up to 5.1 */
65 #define EIGHT_CHANNEL_SUPPORT 8 /* up 62 #define EIGHT_CHANNEL_SUPPORT 8 /* up to 7.1 */
66 63
67 #endif /* __SOUND_DESIGNWARE_I2S_H */ 64 #endif /* __SOUND_DESIGNWARE_I2S_H */
68 65
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