/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */ /* * Copyright (c) 2018 BayLibre, SAS. * Author: Jerome Brunet <jbrunet@baylibre.com> */ #ifndef _MESON_AXG_FIFO_H #define _MESON_AXG_FIFO_H struct clk; struct platform_device; struct regmap; struct reset_control; struct snd_soc_component_driver; struct snd_soc_dai; struct snd_soc_dai_driver; struct snd_pcm_ops; struct snd_soc_pcm_runtime; #define AXG_FIFO_CH_MAX 128 #define AXG_FIFO_RATES (SNDRV_PCM_RATE_5512 | \ SNDRV_PCM_RATE_8000_192000) #define AXG_FIFO_FORMATS (SNDRV_PCM_FMTBIT_S8 | \ SNDRV_PCM_FMTBIT_S16_LE | \ SNDRV_PCM_FMTBIT_S20_LE | \ SNDRV_PCM_FMTBIT_S24_LE | \ SNDRV_PCM_FMTBIT_S32_LE | \ SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE) #define AXG_FIFO_BURST 8 #define AXG_FIFO_MIN_CNT 64 #define AXG_FIFO_MIN_DEPTH (AXG_FIFO_BURST * AXG_FIFO_MIN_CNT) #define FIFO_INT_ADDR_FINISH BIT(0) #define FIFO_INT_ADDR_INT BIT(1) #define FIFO_INT_COUNT_REPEAT BIT(2) #define FIFO_INT_COUNT_ONCE BIT(3) #define FIFO_INT_FIFO_ZERO BIT(4) #define FIFO_INT_FIFO_DEPTH BIT(5) #define FIFO_INT_MASK GENMASK(7, 0) #define FIFO_CTRL0 0x00 #define CTRL0_DMA_EN BIT(31) #define CTRL0_INT_EN(x) ((x) << 16) #define CTRL0_SEL_MASK GENMASK(2, 0) #define CTRL0_SEL_SHIFT 0 #define FIFO_CTRL1 0x04 #define CTRL1_INT_CLR(x) ((x) << 0) #define CTRL1_STATUS2_SEL_MASK GENMASK(11, 8) #define CTRL1_STATUS2_SEL(x) ((x) << 8) #define STATUS2_SEL_DDR_READ 0 #define CTRL1_THRESHOLD_MASK GENMASK(23, 16) #define CTRL1_THRESHOLD(x) ((x) << 16) #define CTRL1_FRDDR_DEPTH_MASK GENMASK(31, 24) #define CTRL1_FRDDR_DEPTH(x) ((x) << 24) #define FIFO_START_ADDR 0x08 #define FIFO_FINISH_ADDR 0x0c #define FIFO_INT_ADDR 0x10 #define FIFO_STATUS1 0x14 #define STATUS1_INT_STS(x) ((x) << 0) #define FIFO_STATUS2 0x18 #define FIFO_INIT_ADDR 0x24 struct axg_fifo { struct regmap *map; struct clk *pclk; struct reset_control *arb; int irq; }; struct axg_fifo_match_data { const struct snd_soc_component_driver *component_drv; struct snd_soc_dai_driver *dai_drv; }; extern const struct snd_pcm_ops axg_fifo_pcm_ops; extern const struct snd_pcm_ops g12a_fifo_pcm_ops; int axg_fifo_pcm_new(struct snd_soc_pcm_runtime *rtd, unsigned int type); int axg_fifo_probe(struct platform_device *pdev); #endif /* _MESON_AXG_FIFO_H */