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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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Here support is added for responding to DSP IRQs that are used to indicate data being available on the DSP. The idea is that we check the amount of data available upon receipt of an IRQ and on subsequent calls to the pointer callback we recheck once less than one fragment is available (to avoid excessive SPI traffic), if there is truely less than one fragment available we ack the last IRQ and wait for a new one. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@kernel.org>
120 lines
3.1 KiB
C
120 lines
3.1 KiB
C
/*
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* wm_adsp.h -- Wolfson ADSP support
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*
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* Copyright 2012 Wolfson Microelectronics plc
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*
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* Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef __WM_ADSP_H
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#define __WM_ADSP_H
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#include <sound/soc.h>
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#include <sound/soc-dapm.h>
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#include <sound/compress_driver.h>
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#include "wmfw.h"
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struct wm_adsp_region {
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int type;
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unsigned int base;
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};
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struct wm_adsp_alg_region {
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struct list_head list;
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unsigned int alg;
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int type;
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unsigned int base;
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};
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struct wm_adsp_compr;
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struct wm_adsp_compr_buf;
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struct wm_adsp {
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const char *part;
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int num;
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int type;
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struct device *dev;
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struct regmap *regmap;
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struct snd_soc_card *card;
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int base;
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int sysclk_reg;
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int sysclk_mask;
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int sysclk_shift;
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struct list_head alg_regions;
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unsigned int fw_id;
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unsigned int fw_id_version;
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const struct wm_adsp_region *mem;
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int num_mems;
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int fw;
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int fw_ver;
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bool running;
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struct list_head ctl_list;
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struct work_struct boot_work;
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struct wm_adsp_compr *compr;
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struct wm_adsp_compr_buf *buffer;
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struct mutex pwr_lock;
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#ifdef CONFIG_DEBUG_FS
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struct dentry *debugfs_root;
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char *wmfw_file_name;
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char *bin_file_name;
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#endif
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};
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#define WM_ADSP1(wname, num) \
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SND_SOC_DAPM_PGA_E(wname, SND_SOC_NOPM, num, 0, NULL, 0, \
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wm_adsp1_event, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD)
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#define WM_ADSP2_E(wname, num, event_fn) \
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{ .id = snd_soc_dapm_dai_link, .name = wname " Preloader", \
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.reg = SND_SOC_NOPM, .shift = num, .event = event_fn, \
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.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD }, \
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{ .id = snd_soc_dapm_out_drv, .name = wname, \
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.reg = SND_SOC_NOPM, .shift = num, .event = wm_adsp2_event, \
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.event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD }
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#define WM_ADSP2(wname, num) \
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WM_ADSP2_E(wname, num, wm_adsp2_early_event)
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extern const struct snd_kcontrol_new wm_adsp_fw_controls[];
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int wm_adsp1_init(struct wm_adsp *dsp);
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int wm_adsp2_init(struct wm_adsp *dsp);
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int wm_adsp2_codec_probe(struct wm_adsp *dsp, struct snd_soc_codec *codec);
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int wm_adsp2_codec_remove(struct wm_adsp *dsp, struct snd_soc_codec *codec);
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int wm_adsp1_event(struct snd_soc_dapm_widget *w,
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struct snd_kcontrol *kcontrol, int event);
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int wm_adsp2_early_event(struct snd_soc_dapm_widget *w,
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struct snd_kcontrol *kcontrol, int event);
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int wm_adsp2_event(struct snd_soc_dapm_widget *w,
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struct snd_kcontrol *kcontrol, int event);
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extern int wm_adsp_compr_open(struct wm_adsp *dsp,
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struct snd_compr_stream *stream);
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extern int wm_adsp_compr_free(struct snd_compr_stream *stream);
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extern int wm_adsp_compr_set_params(struct snd_compr_stream *stream,
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struct snd_compr_params *params);
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extern int wm_adsp_compr_get_caps(struct snd_compr_stream *stream,
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struct snd_compr_caps *caps);
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extern int wm_adsp_compr_trigger(struct snd_compr_stream *stream, int cmd);
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extern int wm_adsp_compr_handle_irq(struct wm_adsp *dsp);
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extern int wm_adsp_compr_pointer(struct snd_compr_stream *stream,
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struct snd_compr_tstamp *tstamp);
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#endif
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