diff options
Diffstat (limited to 'sound/soc/meson/axg-fifo.h')
| -rw-r--r-- | sound/soc/meson/axg-fifo.h | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/sound/soc/meson/axg-fifo.h b/sound/soc/meson/axg-fifo.h new file mode 100644 index 000000000..b63acd723 --- /dev/null +++ b/sound/soc/meson/axg-fifo.h @@ -0,0 +1,99 @@ +/* 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 reg_field; +struct regmap; +struct regmap_field; +struct reset_control; + +struct snd_soc_component_driver; +struct snd_soc_dai; +struct snd_soc_dai_driver; + +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 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_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 +#define FIFO_CTRL2 0x28 + +struct axg_fifo { + struct regmap *map; + struct clk *pclk; + struct reset_control *arb; + struct regmap_field *field_threshold; + unsigned int depth; + int irq; +}; + +struct axg_fifo_match_data { + const struct snd_soc_component_driver *component_drv; + struct snd_soc_dai_driver *dai_drv; + struct reg_field field_threshold; +}; + +int axg_fifo_pcm_open(struct snd_soc_component *component, + struct snd_pcm_substream *ss); +int axg_fifo_pcm_close(struct snd_soc_component *component, + struct snd_pcm_substream *ss); +int axg_fifo_pcm_hw_params(struct snd_soc_component *component, + struct snd_pcm_substream *ss, + struct snd_pcm_hw_params *params); +int g12a_fifo_pcm_hw_params(struct snd_soc_component *component, + struct snd_pcm_substream *ss, + struct snd_pcm_hw_params *params); +int axg_fifo_pcm_hw_free(struct snd_soc_component *component, + struct snd_pcm_substream *ss); +snd_pcm_uframes_t axg_fifo_pcm_pointer(struct snd_soc_component *component, + struct snd_pcm_substream *ss); +int axg_fifo_pcm_trigger(struct snd_soc_component *component, + struct snd_pcm_substream *ss, int cmd); + +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 */ |