1 /* SPDX-License-Identifier: (GPL-2.0 OR MIT) */ 2 /* 3 * Copyright (c) 2018 BayLibre, SAS. 4 * Author: Jerome Brunet <jbrunet@baylibre.com> 5 */ 6 7 #ifndef _MESON_AXG_FIFO_H 8 #define _MESON_AXG_FIFO_H 9 10 struct clk; 11 struct platform_device; 12 struct reg_field; 13 struct regmap; 14 struct regmap_field; 15 struct reset_control; 16 17 struct snd_soc_component_driver; 18 struct snd_soc_dai; 19 struct snd_soc_dai_driver; 20 struct snd_pcm_ops; 21 struct snd_soc_pcm_runtime; 22 23 #define AXG_FIFO_CH_MAX 128 24 #define AXG_FIFO_RATES (SNDRV_PCM_RATE_5512 | \ 25 SNDRV_PCM_RATE_8000_192000) 26 #define AXG_FIFO_FORMATS (SNDRV_PCM_FMTBIT_S8 | \ 27 SNDRV_PCM_FMTBIT_S16_LE | \ 28 SNDRV_PCM_FMTBIT_S20_LE | \ 29 SNDRV_PCM_FMTBIT_S24_LE | \ 30 SNDRV_PCM_FMTBIT_S32_LE | \ 31 SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE) 32 33 #define AXG_FIFO_BURST 8 34 #define AXG_FIFO_MIN_CNT 64 35 #define AXG_FIFO_MIN_DEPTH (AXG_FIFO_BURST * AXG_FIFO_MIN_CNT) 36 37 #define FIFO_INT_ADDR_FINISH BIT(0) 38 #define FIFO_INT_ADDR_INT BIT(1) 39 #define FIFO_INT_COUNT_REPEAT BIT(2) 40 #define FIFO_INT_COUNT_ONCE BIT(3) 41 #define FIFO_INT_FIFO_ZERO BIT(4) 42 #define FIFO_INT_FIFO_DEPTH BIT(5) 43 #define FIFO_INT_MASK GENMASK(7, 0) 44 45 #define FIFO_CTRL0 0x00 46 #define CTRL0_DMA_EN BIT(31) 47 #define CTRL0_INT_EN(x) ((x) << 16) 48 #define CTRL0_SEL_MASK GENMASK(2, 0) 49 #define CTRL0_SEL_SHIFT 0 50 #define FIFO_CTRL1 0x04 51 #define CTRL1_INT_CLR(x) ((x) << 0) 52 #define CTRL1_STATUS2_SEL_MASK GENMASK(11, 8) 53 #define CTRL1_STATUS2_SEL(x) ((x) << 8) 54 #define STATUS2_SEL_DDR_READ 0 55 #define CTRL1_FRDDR_DEPTH_MASK GENMASK(31, 24) 56 #define CTRL1_FRDDR_DEPTH(x) ((x) << 24) 57 #define FIFO_START_ADDR 0x08 58 #define FIFO_FINISH_ADDR 0x0c 59 #define FIFO_INT_ADDR 0x10 60 #define FIFO_STATUS1 0x14 61 #define STATUS1_INT_STS(x) ((x) << 0) 62 #define FIFO_STATUS2 0x18 63 #define FIFO_INIT_ADDR 0x24 64 #define FIFO_CTRL2 0x28 65 66 struct axg_fifo { 67 struct regmap *map; 68 struct clk *pclk; 69 struct reset_control *arb; 70 struct regmap_field *field_threshold; 71 int irq; 72 }; 73 74 struct axg_fifo_match_data { 75 const struct snd_soc_component_driver *component_drv; 76 struct snd_soc_dai_driver *dai_drv; 77 struct reg_field field_threshold; 78 }; 79 80 extern const struct snd_pcm_ops axg_fifo_pcm_ops; 81 extern const struct snd_pcm_ops g12a_fifo_pcm_ops; 82 83 int axg_fifo_pcm_new(struct snd_soc_pcm_runtime *rtd, unsigned int type); 84 int axg_fifo_probe(struct platform_device *pdev); 85 86 #endif /* _MESON_AXG_FIFO_H */ 87