1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * wm_adsp.h -- Wolfson ADSP support
4 *
5 * Copyright 2012 Wolfson Microelectronics plc
6 *
7 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
8 */
9
10#ifndef __WM_ADSP_H
11#define __WM_ADSP_H
12
13#include <linux/firmware/cirrus/cs_dsp.h>
14#include <linux/firmware/cirrus/wmfw.h>
15
16#include <sound/soc.h>
17#include <sound/soc-dapm.h>
18#include <sound/compress_driver.h>
19
20/* Return values for wm_adsp_compr_handle_irq */
21#define WM_ADSP_COMPR_OK 0
22#define WM_ADSP_COMPR_VOICE_TRIGGER 1
23
24struct wm_adsp_compr;
25struct wm_adsp_compr_buf;
26
27struct wm_adsp {
28 struct cs_dsp cs_dsp;
29 const char *part;
30 const char *fwf_name;
31 const char *system_name;
32 struct snd_soc_component *component;
33
34 unsigned int sys_config_size;
35
36 int fw;
37 bool wmfw_optional;
38
39 struct work_struct boot_work;
40 int (*pre_run)(struct wm_adsp *dsp);
41
42 bool preloaded;
43 bool fatal_error;
44
45 struct list_head compr_list;
46 struct list_head buffer_list;
47
48 /*
49 * Flag indicating the preloader widget only needs power toggled
50 * on state change rather than held on for the duration of the
51 * preload, useful for devices that can retain firmware memory
52 * across power down.
53 */
54 bool toggle_preload;
55};
56
57#define WM_ADSP1(wname, num) \
58 SND_SOC_DAPM_PGA_E(wname, SND_SOC_NOPM, num, 0, NULL, 0, \
59 wm_adsp1_event, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD)
60
61#define WM_ADSP2_PRELOAD_SWITCH(wname, num) \
62 SOC_SINGLE_EXT(wname " Preload Switch", SND_SOC_NOPM, num, 1, 0, \
63 wm_adsp2_preloader_get, wm_adsp2_preloader_put)
64
65#define WM_ADSP2(wname, num, event_fn) \
66 SND_SOC_DAPM_SPK(wname " Preload", NULL), \
67{ .id = snd_soc_dapm_supply, .name = wname " Preloader", \
68 .reg = SND_SOC_NOPM, .shift = num, .event = event_fn, \
69 .event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD, \
70 .subseq = 100, /* Ensure we run after SYSCLK supply widget */ }, \
71{ .id = snd_soc_dapm_out_drv, .name = wname, \
72 .reg = SND_SOC_NOPM, .shift = num, .event = wm_adsp_event, \
73 .event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD }
74
75#define WM_ADSP_FW_CONTROL(dspname, num) \
76 SOC_ENUM_EXT(dspname " Firmware", wm_adsp_fw_enum[num], \
77 wm_adsp_fw_get, wm_adsp_fw_put)
78
79extern const struct soc_enum wm_adsp_fw_enum[];
80
81int wm_adsp1_init(struct wm_adsp *dsp);
82int wm_adsp2_init(struct wm_adsp *dsp);
83void wm_adsp2_remove(struct wm_adsp *dsp);
84int wm_adsp2_component_probe(struct wm_adsp *dsp, struct snd_soc_component *component);
85int wm_adsp2_component_remove(struct wm_adsp *dsp, struct snd_soc_component *component);
86int wm_halo_init(struct wm_adsp *dsp);
87
88int wm_adsp1_event(struct snd_soc_dapm_widget *w,
89 struct snd_kcontrol *kcontrol, int event);
90
91int wm_adsp_early_event(struct snd_soc_dapm_widget *w,
92 struct snd_kcontrol *kcontrol, int event);
93
94int wm_adsp_power_up(struct wm_adsp *dsp, bool load_firmware);
95void wm_adsp_power_down(struct wm_adsp *dsp);
96
97irqreturn_t wm_adsp2_bus_error(int irq, void *data);
98irqreturn_t wm_halo_bus_error(int irq, void *data);
99irqreturn_t wm_halo_wdt_expire(int irq, void *data);
100
101int wm_adsp_run(struct wm_adsp *dsp);
102void wm_adsp_stop(struct wm_adsp *dsp);
103int wm_adsp_event(struct snd_soc_dapm_widget *w,
104 struct snd_kcontrol *kcontrol, int event);
105
106int wm_adsp2_set_dspclk(struct snd_soc_dapm_widget *w, unsigned int freq);
107
108int wm_adsp2_preloader_get(struct snd_kcontrol *kcontrol,
109 struct snd_ctl_elem_value *ucontrol);
110int wm_adsp2_preloader_put(struct snd_kcontrol *kcontrol,
111 struct snd_ctl_elem_value *ucontrol);
112int wm_adsp_fw_get(struct snd_kcontrol *kcontrol,
113 struct snd_ctl_elem_value *ucontrol);
114int wm_adsp_fw_put(struct snd_kcontrol *kcontrol,
115 struct snd_ctl_elem_value *ucontrol);
116
117int wm_adsp_compr_open(struct wm_adsp *dsp, struct snd_compr_stream *stream);
118int wm_adsp_compr_free(struct snd_soc_component *component,
119 struct snd_compr_stream *stream);
120int wm_adsp_compr_set_params(struct snd_soc_component *component,
121 struct snd_compr_stream *stream,
122 struct snd_compr_params *params);
123int wm_adsp_compr_get_caps(struct snd_soc_component *component,
124 struct snd_compr_stream *stream,
125 struct snd_compr_caps *caps);
126int wm_adsp_compr_trigger(struct snd_soc_component *component,
127 struct snd_compr_stream *stream, int cmd);
128int wm_adsp_compr_handle_irq(struct wm_adsp *dsp);
129int wm_adsp_compr_pointer(struct snd_soc_component *component,
130 struct snd_compr_stream *stream,
131 struct snd_compr_tstamp *tstamp);
132int wm_adsp_compr_copy(struct snd_soc_component *component,
133 struct snd_compr_stream *stream,
134 char __user *buf, size_t count);
135int wm_adsp_write_ctl(struct wm_adsp *dsp, const char *name, int type,
136 unsigned int alg, void *buf, size_t len);
137int wm_adsp_read_ctl(struct wm_adsp *dsp, const char *name, int type,
138 unsigned int alg, void *buf, size_t len);
139
140#endif
141

source code of linux/sound/soc/codecs/wm_adsp.h