^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Dummy soundcard
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <linux/err.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/jiffies.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/time.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/wait.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/hrtimer.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/math64.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <sound/core.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <sound/control.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <sound/tlv.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <sound/pcm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <sound/rawmidi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <sound/info.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <sound/initval.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) MODULE_DESCRIPTION("Dummy soundcard (/dev/null)");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) MODULE_SUPPORTED_DEVICE("{{ALSA,Dummy soundcard}}");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #define MAX_PCM_DEVICES 4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #define MAX_PCM_SUBSTREAMS 128
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #define MAX_MIDI_DEVICES 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) /* defaults */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #define MAX_BUFFER_SIZE (64*1024)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #define MIN_PERIOD_SIZE 64
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #define MAX_PERIOD_SIZE MAX_BUFFER_SIZE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #define USE_FORMATS (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #define USE_RATE SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #define USE_RATE_MIN 5500
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) #define USE_RATE_MAX 48000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #define USE_CHANNELS_MIN 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #define USE_CHANNELS_MAX 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #define USE_PERIODS_MIN 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #define USE_PERIODS_MAX 1024
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) static bool enable[SNDRV_CARDS] = {1, [1 ... (SNDRV_CARDS - 1)] = 0};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) static char *model[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = NULL};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) static int pcm_devs[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) static int pcm_substreams[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 8};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) //static int midi_devs[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 2};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) #ifdef CONFIG_HIGH_RES_TIMERS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) static bool hrtimer = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) static bool fake_buffer = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) module_param_array(index, int, NULL, 0444);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) MODULE_PARM_DESC(index, "Index value for dummy soundcard.");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) module_param_array(id, charp, NULL, 0444);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) MODULE_PARM_DESC(id, "ID string for dummy soundcard.");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) module_param_array(enable, bool, NULL, 0444);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) MODULE_PARM_DESC(enable, "Enable this dummy soundcard.");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) module_param_array(model, charp, NULL, 0444);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) MODULE_PARM_DESC(model, "Soundcard model.");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) module_param_array(pcm_devs, int, NULL, 0444);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) MODULE_PARM_DESC(pcm_devs, "PCM devices # (0-4) for dummy driver.");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) module_param_array(pcm_substreams, int, NULL, 0444);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) MODULE_PARM_DESC(pcm_substreams, "PCM substreams # (1-128) for dummy driver.");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) //module_param_array(midi_devs, int, NULL, 0444);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) //MODULE_PARM_DESC(midi_devs, "MIDI devices # (0-2) for dummy driver.");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) module_param(fake_buffer, bool, 0444);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) MODULE_PARM_DESC(fake_buffer, "Fake buffer allocations.");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) #ifdef CONFIG_HIGH_RES_TIMERS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) module_param(hrtimer, bool, 0644);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) MODULE_PARM_DESC(hrtimer, "Use hrtimer as the timer source.");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) static struct platform_device *devices[SNDRV_CARDS];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) #define MIXER_ADDR_MASTER 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) #define MIXER_ADDR_LINE 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) #define MIXER_ADDR_MIC 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) #define MIXER_ADDR_SYNTH 3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) #define MIXER_ADDR_CD 4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) #define MIXER_ADDR_LAST 4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) struct dummy_timer_ops {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) int (*create)(struct snd_pcm_substream *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) void (*free)(struct snd_pcm_substream *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) int (*prepare)(struct snd_pcm_substream *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) int (*start)(struct snd_pcm_substream *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) int (*stop)(struct snd_pcm_substream *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) snd_pcm_uframes_t (*pointer)(struct snd_pcm_substream *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) #define get_dummy_ops(substream) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) (*(const struct dummy_timer_ops **)(substream)->runtime->private_data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) struct dummy_model {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) const char *name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) int (*playback_constraints)(struct snd_pcm_runtime *runtime);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) int (*capture_constraints)(struct snd_pcm_runtime *runtime);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) u64 formats;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) size_t buffer_bytes_max;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) size_t period_bytes_min;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) size_t period_bytes_max;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) unsigned int periods_min;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) unsigned int periods_max;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) unsigned int rates;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) unsigned int rate_min;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) unsigned int rate_max;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) unsigned int channels_min;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) unsigned int channels_max;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) struct snd_dummy {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) struct snd_card *card;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) const struct dummy_model *model;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) struct snd_pcm *pcm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) struct snd_pcm_hardware pcm_hw;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) spinlock_t mixer_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) int mixer_volume[MIXER_ADDR_LAST+1][2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) int capture_source[MIXER_ADDR_LAST+1][2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) int iobox;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) struct snd_kcontrol *cd_volume_ctl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) struct snd_kcontrol *cd_switch_ctl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) * card models
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) static int emu10k1_playback_constraints(struct snd_pcm_runtime *runtime)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) err = snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 256, UINT_MAX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) static const struct dummy_model model_emu10k1 = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) .name = "emu10k1",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) .playback_constraints = emu10k1_playback_constraints,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) .buffer_bytes_max = 128 * 1024,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) static const struct dummy_model model_rme9652 = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) .name = "rme9652",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) .buffer_bytes_max = 26 * 64 * 1024,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) .formats = SNDRV_PCM_FMTBIT_S32_LE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) .channels_min = 26,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) .channels_max = 26,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) .periods_min = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) .periods_max = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) static const struct dummy_model model_ice1712 = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) .name = "ice1712",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) .buffer_bytes_max = 256 * 1024,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) .formats = SNDRV_PCM_FMTBIT_S32_LE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) .channels_min = 10,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) .channels_max = 10,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) .periods_min = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) .periods_max = 1024,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) static const struct dummy_model model_uda1341 = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) .name = "uda1341",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) .buffer_bytes_max = 16380,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) .formats = SNDRV_PCM_FMTBIT_S16_LE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) .channels_min = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) .channels_max = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) .periods_min = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) .periods_max = 255,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) static const struct dummy_model model_ac97 = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) .name = "ac97",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) .formats = SNDRV_PCM_FMTBIT_S16_LE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) .channels_min = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) .channels_max = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) .rates = SNDRV_PCM_RATE_48000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) .rate_min = 48000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) .rate_max = 48000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) static const struct dummy_model model_ca0106 = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) .name = "ca0106",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) .formats = SNDRV_PCM_FMTBIT_S16_LE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) .buffer_bytes_max = ((65536-64)*8),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) .period_bytes_max = (65536-64),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) .periods_min = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) .periods_max = 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) .channels_min = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) .channels_max = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) .rates = SNDRV_PCM_RATE_48000|SNDRV_PCM_RATE_96000|SNDRV_PCM_RATE_192000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) .rate_min = 48000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) .rate_max = 192000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) static const struct dummy_model *dummy_models[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) &model_emu10k1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) &model_rme9652,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) &model_ice1712,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) &model_uda1341,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) &model_ac97,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) &model_ca0106,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) NULL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) * system timer interface
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) struct dummy_systimer_pcm {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) /* ops must be the first item */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) const struct dummy_timer_ops *timer_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) spinlock_t lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) struct timer_list timer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) unsigned long base_time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) unsigned int frac_pos; /* fractional sample position (based HZ) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) unsigned int frac_period_rest;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) unsigned int frac_buffer_size; /* buffer_size * HZ */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) unsigned int frac_period_size; /* period_size * HZ */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) unsigned int rate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) int elapsed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) struct snd_pcm_substream *substream;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) static void dummy_systimer_rearm(struct dummy_systimer_pcm *dpcm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) mod_timer(&dpcm->timer, jiffies +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) (dpcm->frac_period_rest + dpcm->rate - 1) / dpcm->rate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) static void dummy_systimer_update(struct dummy_systimer_pcm *dpcm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) unsigned long delta;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) delta = jiffies - dpcm->base_time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) if (!delta)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) dpcm->base_time += delta;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) delta *= dpcm->rate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) dpcm->frac_pos += delta;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) while (dpcm->frac_pos >= dpcm->frac_buffer_size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) dpcm->frac_pos -= dpcm->frac_buffer_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) while (dpcm->frac_period_rest <= delta) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) dpcm->elapsed++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) dpcm->frac_period_rest += dpcm->frac_period_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) dpcm->frac_period_rest -= delta;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) static int dummy_systimer_start(struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) struct dummy_systimer_pcm *dpcm = substream->runtime->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) spin_lock(&dpcm->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) dpcm->base_time = jiffies;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) dummy_systimer_rearm(dpcm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) spin_unlock(&dpcm->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) static int dummy_systimer_stop(struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) struct dummy_systimer_pcm *dpcm = substream->runtime->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) spin_lock(&dpcm->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) del_timer(&dpcm->timer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) spin_unlock(&dpcm->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) static int dummy_systimer_prepare(struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) struct snd_pcm_runtime *runtime = substream->runtime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) struct dummy_systimer_pcm *dpcm = runtime->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) dpcm->frac_pos = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) dpcm->rate = runtime->rate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) dpcm->frac_buffer_size = runtime->buffer_size * HZ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) dpcm->frac_period_size = runtime->period_size * HZ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) dpcm->frac_period_rest = dpcm->frac_period_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) dpcm->elapsed = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) static void dummy_systimer_callback(struct timer_list *t)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) struct dummy_systimer_pcm *dpcm = from_timer(dpcm, t, timer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) int elapsed = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) spin_lock_irqsave(&dpcm->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) dummy_systimer_update(dpcm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) dummy_systimer_rearm(dpcm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) elapsed = dpcm->elapsed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) dpcm->elapsed = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) spin_unlock_irqrestore(&dpcm->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) if (elapsed)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) snd_pcm_period_elapsed(dpcm->substream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) static snd_pcm_uframes_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) dummy_systimer_pointer(struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) struct dummy_systimer_pcm *dpcm = substream->runtime->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) snd_pcm_uframes_t pos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) spin_lock(&dpcm->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) dummy_systimer_update(dpcm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) pos = dpcm->frac_pos / HZ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) spin_unlock(&dpcm->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) return pos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) static int dummy_systimer_create(struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) struct dummy_systimer_pcm *dpcm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) dpcm = kzalloc(sizeof(*dpcm), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) if (!dpcm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) substream->runtime->private_data = dpcm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) timer_setup(&dpcm->timer, dummy_systimer_callback, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) spin_lock_init(&dpcm->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) dpcm->substream = substream;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) static void dummy_systimer_free(struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) kfree(substream->runtime->private_data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) static const struct dummy_timer_ops dummy_systimer_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) .create = dummy_systimer_create,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) .free = dummy_systimer_free,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) .prepare = dummy_systimer_prepare,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) .start = dummy_systimer_start,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) .stop = dummy_systimer_stop,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) .pointer = dummy_systimer_pointer,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) #ifdef CONFIG_HIGH_RES_TIMERS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) * hrtimer interface
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) struct dummy_hrtimer_pcm {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) /* ops must be the first item */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) const struct dummy_timer_ops *timer_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) ktime_t base_time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) ktime_t period_time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) atomic_t running;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) struct hrtimer timer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) struct snd_pcm_substream *substream;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) static enum hrtimer_restart dummy_hrtimer_callback(struct hrtimer *timer)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) struct dummy_hrtimer_pcm *dpcm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) dpcm = container_of(timer, struct dummy_hrtimer_pcm, timer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) if (!atomic_read(&dpcm->running))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) return HRTIMER_NORESTART;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) * In cases of XRUN and draining, this calls .trigger to stop PCM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) * substream.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) snd_pcm_period_elapsed(dpcm->substream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) if (!atomic_read(&dpcm->running))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) return HRTIMER_NORESTART;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) hrtimer_forward_now(timer, dpcm->period_time);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) return HRTIMER_RESTART;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) static int dummy_hrtimer_start(struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) struct dummy_hrtimer_pcm *dpcm = substream->runtime->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) dpcm->base_time = hrtimer_cb_get_time(&dpcm->timer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) hrtimer_start(&dpcm->timer, dpcm->period_time, HRTIMER_MODE_REL_SOFT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) atomic_set(&dpcm->running, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) static int dummy_hrtimer_stop(struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) struct dummy_hrtimer_pcm *dpcm = substream->runtime->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) atomic_set(&dpcm->running, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) if (!hrtimer_callback_running(&dpcm->timer))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) hrtimer_cancel(&dpcm->timer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) static inline void dummy_hrtimer_sync(struct dummy_hrtimer_pcm *dpcm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) hrtimer_cancel(&dpcm->timer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) static snd_pcm_uframes_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) dummy_hrtimer_pointer(struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) struct snd_pcm_runtime *runtime = substream->runtime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) struct dummy_hrtimer_pcm *dpcm = runtime->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) u64 delta;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) u32 pos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) delta = ktime_us_delta(hrtimer_cb_get_time(&dpcm->timer),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) dpcm->base_time);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) delta = div_u64(delta * runtime->rate + 999999, 1000000);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) div_u64_rem(delta, runtime->buffer_size, &pos);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) return pos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) static int dummy_hrtimer_prepare(struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) struct snd_pcm_runtime *runtime = substream->runtime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) struct dummy_hrtimer_pcm *dpcm = runtime->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) unsigned int period, rate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) long sec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) unsigned long nsecs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) dummy_hrtimer_sync(dpcm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) period = runtime->period_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) rate = runtime->rate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) sec = period / rate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) period %= rate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) nsecs = div_u64((u64)period * 1000000000UL + rate - 1, rate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) dpcm->period_time = ktime_set(sec, nsecs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) static int dummy_hrtimer_create(struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) struct dummy_hrtimer_pcm *dpcm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) dpcm = kzalloc(sizeof(*dpcm), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) if (!dpcm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) substream->runtime->private_data = dpcm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) hrtimer_init(&dpcm->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_SOFT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) dpcm->timer.function = dummy_hrtimer_callback;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) dpcm->substream = substream;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) atomic_set(&dpcm->running, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) static void dummy_hrtimer_free(struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) struct dummy_hrtimer_pcm *dpcm = substream->runtime->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) dummy_hrtimer_sync(dpcm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) kfree(dpcm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) static const struct dummy_timer_ops dummy_hrtimer_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) .create = dummy_hrtimer_create,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) .free = dummy_hrtimer_free,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) .prepare = dummy_hrtimer_prepare,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) .start = dummy_hrtimer_start,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) .stop = dummy_hrtimer_stop,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) .pointer = dummy_hrtimer_pointer,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) #endif /* CONFIG_HIGH_RES_TIMERS */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) * PCM interface
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) static int dummy_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) switch (cmd) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) case SNDRV_PCM_TRIGGER_START:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) case SNDRV_PCM_TRIGGER_RESUME:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) return get_dummy_ops(substream)->start(substream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) case SNDRV_PCM_TRIGGER_STOP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) case SNDRV_PCM_TRIGGER_SUSPEND:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) return get_dummy_ops(substream)->stop(substream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) static int dummy_pcm_prepare(struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) return get_dummy_ops(substream)->prepare(substream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) static snd_pcm_uframes_t dummy_pcm_pointer(struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) return get_dummy_ops(substream)->pointer(substream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) static const struct snd_pcm_hardware dummy_pcm_hardware = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) .info = (SNDRV_PCM_INFO_MMAP |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) SNDRV_PCM_INFO_INTERLEAVED |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) SNDRV_PCM_INFO_RESUME |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) SNDRV_PCM_INFO_MMAP_VALID),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) .formats = USE_FORMATS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) .rates = USE_RATE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) .rate_min = USE_RATE_MIN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) .rate_max = USE_RATE_MAX,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) .channels_min = USE_CHANNELS_MIN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) .channels_max = USE_CHANNELS_MAX,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) .buffer_bytes_max = MAX_BUFFER_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) .period_bytes_min = MIN_PERIOD_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) .period_bytes_max = MAX_PERIOD_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) .periods_min = USE_PERIODS_MIN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) .periods_max = USE_PERIODS_MAX,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) .fifo_size = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) static int dummy_pcm_hw_params(struct snd_pcm_substream *substream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) struct snd_pcm_hw_params *hw_params)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) if (fake_buffer) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) /* runtime->dma_bytes has to be set manually to allow mmap */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) substream->runtime->dma_bytes = params_buffer_bytes(hw_params);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) static int dummy_pcm_open(struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) struct snd_dummy *dummy = snd_pcm_substream_chip(substream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) const struct dummy_model *model = dummy->model;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) struct snd_pcm_runtime *runtime = substream->runtime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) const struct dummy_timer_ops *ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) ops = &dummy_systimer_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) #ifdef CONFIG_HIGH_RES_TIMERS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) if (hrtimer)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) ops = &dummy_hrtimer_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) err = ops->create(substream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) get_dummy_ops(substream) = ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) runtime->hw = dummy->pcm_hw;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) if (substream->pcm->device & 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) runtime->hw.info &= ~SNDRV_PCM_INFO_INTERLEAVED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) runtime->hw.info |= SNDRV_PCM_INFO_NONINTERLEAVED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) if (substream->pcm->device & 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) runtime->hw.info &= ~(SNDRV_PCM_INFO_MMAP |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) SNDRV_PCM_INFO_MMAP_VALID);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) if (model == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) if (model->playback_constraints)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) err = model->playback_constraints(substream->runtime);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) if (model->capture_constraints)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) err = model->capture_constraints(substream->runtime);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) get_dummy_ops(substream)->free(substream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) static int dummy_pcm_close(struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) get_dummy_ops(substream)->free(substream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) * dummy buffer handling
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) static void *dummy_page[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) static void free_fake_buffer(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) if (fake_buffer) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) for (i = 0; i < 2; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) if (dummy_page[i]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) free_page((unsigned long)dummy_page[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) dummy_page[i] = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) static int alloc_fake_buffer(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) if (!fake_buffer)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) for (i = 0; i < 2; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) dummy_page[i] = (void *)get_zeroed_page(GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) if (!dummy_page[i]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) free_fake_buffer();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) static int dummy_pcm_copy(struct snd_pcm_substream *substream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) int channel, unsigned long pos,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) void __user *dst, unsigned long bytes)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) return 0; /* do nothing */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) static int dummy_pcm_copy_kernel(struct snd_pcm_substream *substream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) int channel, unsigned long pos,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) void *dst, unsigned long bytes)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) return 0; /* do nothing */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) static int dummy_pcm_silence(struct snd_pcm_substream *substream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) int channel, unsigned long pos,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) unsigned long bytes)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) return 0; /* do nothing */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) static struct page *dummy_pcm_page(struct snd_pcm_substream *substream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) unsigned long offset)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) return virt_to_page(dummy_page[substream->stream]); /* the same page */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) static const struct snd_pcm_ops dummy_pcm_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) .open = dummy_pcm_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) .close = dummy_pcm_close,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) .hw_params = dummy_pcm_hw_params,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) .prepare = dummy_pcm_prepare,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) .trigger = dummy_pcm_trigger,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) .pointer = dummy_pcm_pointer,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) static const struct snd_pcm_ops dummy_pcm_ops_no_buf = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) .open = dummy_pcm_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) .close = dummy_pcm_close,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) .hw_params = dummy_pcm_hw_params,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) .prepare = dummy_pcm_prepare,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) .trigger = dummy_pcm_trigger,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) .pointer = dummy_pcm_pointer,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) .copy_user = dummy_pcm_copy,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) .copy_kernel = dummy_pcm_copy_kernel,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) .fill_silence = dummy_pcm_silence,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) .page = dummy_pcm_page,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) static int snd_card_dummy_pcm(struct snd_dummy *dummy, int device,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) int substreams)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) struct snd_pcm *pcm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) const struct snd_pcm_ops *ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) err = snd_pcm_new(dummy->card, "Dummy PCM", device,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) substreams, substreams, &pcm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) dummy->pcm = pcm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) if (fake_buffer)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) ops = &dummy_pcm_ops_no_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) ops = &dummy_pcm_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) pcm->private_data = dummy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) pcm->info_flags = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) strcpy(pcm->name, "Dummy PCM");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) if (!fake_buffer) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) snd_pcm_set_managed_buffer_all(pcm,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) SNDRV_DMA_TYPE_CONTINUOUS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) 0, 64*1024);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) * mixer interface
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) #define DUMMY_VOLUME(xname, xindex, addr) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704) { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) .name = xname, .index = xindex, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707) .info = snd_dummy_volume_info, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) .get = snd_dummy_volume_get, .put = snd_dummy_volume_put, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) .private_value = addr, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) .tlv = { .p = db_scale_dummy } }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712) static int snd_dummy_volume_info(struct snd_kcontrol *kcontrol,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) struct snd_ctl_elem_info *uinfo)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) uinfo->count = 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) uinfo->value.integer.min = -50;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718) uinfo->value.integer.max = 100;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) static int snd_dummy_volume_get(struct snd_kcontrol *kcontrol,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) struct snd_ctl_elem_value *ucontrol)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725) struct snd_dummy *dummy = snd_kcontrol_chip(kcontrol);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726) int addr = kcontrol->private_value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) spin_lock_irq(&dummy->mixer_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) ucontrol->value.integer.value[0] = dummy->mixer_volume[addr][0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730) ucontrol->value.integer.value[1] = dummy->mixer_volume[addr][1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) spin_unlock_irq(&dummy->mixer_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) static int snd_dummy_volume_put(struct snd_kcontrol *kcontrol,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) struct snd_ctl_elem_value *ucontrol)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) struct snd_dummy *dummy = snd_kcontrol_chip(kcontrol);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) int change, addr = kcontrol->private_value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) int left, right;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) left = ucontrol->value.integer.value[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) if (left < -50)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) left = -50;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) if (left > 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) left = 100;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) right = ucontrol->value.integer.value[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) if (right < -50)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) right = -50;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) if (right > 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) right = 100;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752) spin_lock_irq(&dummy->mixer_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) change = dummy->mixer_volume[addr][0] != left ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) dummy->mixer_volume[addr][1] != right;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) dummy->mixer_volume[addr][0] = left;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) dummy->mixer_volume[addr][1] = right;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) spin_unlock_irq(&dummy->mixer_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) return change;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) static const DECLARE_TLV_DB_SCALE(db_scale_dummy, -4500, 30, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) #define DUMMY_CAPSRC(xname, xindex, addr) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764) { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) .info = snd_dummy_capsrc_info, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766) .get = snd_dummy_capsrc_get, .put = snd_dummy_capsrc_put, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) .private_value = addr }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769) #define snd_dummy_capsrc_info snd_ctl_boolean_stereo_info
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771) static int snd_dummy_capsrc_get(struct snd_kcontrol *kcontrol,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772) struct snd_ctl_elem_value *ucontrol)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) struct snd_dummy *dummy = snd_kcontrol_chip(kcontrol);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775) int addr = kcontrol->private_value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777) spin_lock_irq(&dummy->mixer_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778) ucontrol->value.integer.value[0] = dummy->capture_source[addr][0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779) ucontrol->value.integer.value[1] = dummy->capture_source[addr][1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780) spin_unlock_irq(&dummy->mixer_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784) static int snd_dummy_capsrc_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786) struct snd_dummy *dummy = snd_kcontrol_chip(kcontrol);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787) int change, addr = kcontrol->private_value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788) int left, right;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790) left = ucontrol->value.integer.value[0] & 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791) right = ucontrol->value.integer.value[1] & 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792) spin_lock_irq(&dummy->mixer_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793) change = dummy->capture_source[addr][0] != left &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794) dummy->capture_source[addr][1] != right;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795) dummy->capture_source[addr][0] = left;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796) dummy->capture_source[addr][1] = right;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797) spin_unlock_irq(&dummy->mixer_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798) return change;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801) static int snd_dummy_iobox_info(struct snd_kcontrol *kcontrol,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802) struct snd_ctl_elem_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804) static const char *const names[] = { "None", "CD Player" };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806) return snd_ctl_enum_info(info, 1, 2, names);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809) static int snd_dummy_iobox_get(struct snd_kcontrol *kcontrol,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810) struct snd_ctl_elem_value *value)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812) struct snd_dummy *dummy = snd_kcontrol_chip(kcontrol);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814) value->value.enumerated.item[0] = dummy->iobox;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818) static int snd_dummy_iobox_put(struct snd_kcontrol *kcontrol,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819) struct snd_ctl_elem_value *value)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821) struct snd_dummy *dummy = snd_kcontrol_chip(kcontrol);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822) int changed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824) if (value->value.enumerated.item[0] > 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827) changed = value->value.enumerated.item[0] != dummy->iobox;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828) if (changed) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829) dummy->iobox = value->value.enumerated.item[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831) if (dummy->iobox) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832) dummy->cd_volume_ctl->vd[0].access &=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833) ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834) dummy->cd_switch_ctl->vd[0].access &=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835) ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837) dummy->cd_volume_ctl->vd[0].access |=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838) SNDRV_CTL_ELEM_ACCESS_INACTIVE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839) dummy->cd_switch_ctl->vd[0].access |=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840) SNDRV_CTL_ELEM_ACCESS_INACTIVE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843) snd_ctl_notify(dummy->card, SNDRV_CTL_EVENT_MASK_INFO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844) &dummy->cd_volume_ctl->id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 845) snd_ctl_notify(dummy->card, SNDRV_CTL_EVENT_MASK_INFO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 846) &dummy->cd_switch_ctl->id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 847) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 848)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 849) return changed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 850) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 851)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 852) static const struct snd_kcontrol_new snd_dummy_controls[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 853) DUMMY_VOLUME("Master Volume", 0, MIXER_ADDR_MASTER),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 854) DUMMY_CAPSRC("Master Capture Switch", 0, MIXER_ADDR_MASTER),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 855) DUMMY_VOLUME("Synth Volume", 0, MIXER_ADDR_SYNTH),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 856) DUMMY_CAPSRC("Synth Capture Switch", 0, MIXER_ADDR_SYNTH),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 857) DUMMY_VOLUME("Line Volume", 0, MIXER_ADDR_LINE),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 858) DUMMY_CAPSRC("Line Capture Switch", 0, MIXER_ADDR_LINE),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 859) DUMMY_VOLUME("Mic Volume", 0, MIXER_ADDR_MIC),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 860) DUMMY_CAPSRC("Mic Capture Switch", 0, MIXER_ADDR_MIC),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 861) DUMMY_VOLUME("CD Volume", 0, MIXER_ADDR_CD),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 862) DUMMY_CAPSRC("CD Capture Switch", 0, MIXER_ADDR_CD),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 863) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 864) .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 865) .name = "External I/O Box",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 866) .info = snd_dummy_iobox_info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 867) .get = snd_dummy_iobox_get,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 868) .put = snd_dummy_iobox_put,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 869) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 870) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 871)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 872) static int snd_card_dummy_new_mixer(struct snd_dummy *dummy)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 873) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 874) struct snd_card *card = dummy->card;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 875) struct snd_kcontrol *kcontrol;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 876) unsigned int idx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 877) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 878)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 879) spin_lock_init(&dummy->mixer_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 880) strcpy(card->mixername, "Dummy Mixer");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 881) dummy->iobox = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 882)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 883) for (idx = 0; idx < ARRAY_SIZE(snd_dummy_controls); idx++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 884) kcontrol = snd_ctl_new1(&snd_dummy_controls[idx], dummy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 885) err = snd_ctl_add(card, kcontrol);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 886) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 887) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 888) if (!strcmp(kcontrol->id.name, "CD Volume"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 889) dummy->cd_volume_ctl = kcontrol;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 890) else if (!strcmp(kcontrol->id.name, "CD Capture Switch"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 891) dummy->cd_switch_ctl = kcontrol;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 892)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 893) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 894) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 895) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 896)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 897) #if defined(CONFIG_SND_DEBUG) && defined(CONFIG_SND_PROC_FS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 898) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 899) * proc interface
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 900) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 901) static void print_formats(struct snd_dummy *dummy,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 902) struct snd_info_buffer *buffer)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 903) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 904) snd_pcm_format_t i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 905)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 906) pcm_for_each_format(i) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 907) if (dummy->pcm_hw.formats & pcm_format_to_bits(i))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 908) snd_iprintf(buffer, " %s", snd_pcm_format_name(i));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 909) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 910) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 911)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 912) static void print_rates(struct snd_dummy *dummy,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 913) struct snd_info_buffer *buffer)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 914) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 915) static const int rates[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 916) 5512, 8000, 11025, 16000, 22050, 32000, 44100, 48000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 917) 64000, 88200, 96000, 176400, 192000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 918) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 919) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 920)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 921) if (dummy->pcm_hw.rates & SNDRV_PCM_RATE_CONTINUOUS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 922) snd_iprintf(buffer, " continuous");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 923) if (dummy->pcm_hw.rates & SNDRV_PCM_RATE_KNOT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 924) snd_iprintf(buffer, " knot");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 925) for (i = 0; i < ARRAY_SIZE(rates); i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 926) if (dummy->pcm_hw.rates & (1 << i))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 927) snd_iprintf(buffer, " %d", rates[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 928) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 929)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 930) #define get_dummy_int_ptr(dummy, ofs) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 931) (unsigned int *)((char *)&((dummy)->pcm_hw) + (ofs))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 932) #define get_dummy_ll_ptr(dummy, ofs) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 933) (unsigned long long *)((char *)&((dummy)->pcm_hw) + (ofs))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 934)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 935) struct dummy_hw_field {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 936) const char *name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 937) const char *format;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 938) unsigned int offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 939) unsigned int size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 940) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 941) #define FIELD_ENTRY(item, fmt) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 942) .name = #item, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 943) .format = fmt, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 944) .offset = offsetof(struct snd_pcm_hardware, item), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 945) .size = sizeof(dummy_pcm_hardware.item) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 946)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 947) static const struct dummy_hw_field fields[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 948) FIELD_ENTRY(formats, "%#llx"),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 949) FIELD_ENTRY(rates, "%#x"),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 950) FIELD_ENTRY(rate_min, "%d"),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 951) FIELD_ENTRY(rate_max, "%d"),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 952) FIELD_ENTRY(channels_min, "%d"),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 953) FIELD_ENTRY(channels_max, "%d"),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 954) FIELD_ENTRY(buffer_bytes_max, "%ld"),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 955) FIELD_ENTRY(period_bytes_min, "%ld"),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 956) FIELD_ENTRY(period_bytes_max, "%ld"),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 957) FIELD_ENTRY(periods_min, "%d"),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 958) FIELD_ENTRY(periods_max, "%d"),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 959) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 960)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 961) static void dummy_proc_read(struct snd_info_entry *entry,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 962) struct snd_info_buffer *buffer)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 963) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 964) struct snd_dummy *dummy = entry->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 965) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 966)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 967) for (i = 0; i < ARRAY_SIZE(fields); i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 968) snd_iprintf(buffer, "%s ", fields[i].name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 969) if (fields[i].size == sizeof(int))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 970) snd_iprintf(buffer, fields[i].format,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 971) *get_dummy_int_ptr(dummy, fields[i].offset));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 972) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 973) snd_iprintf(buffer, fields[i].format,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 974) *get_dummy_ll_ptr(dummy, fields[i].offset));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 975) if (!strcmp(fields[i].name, "formats"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 976) print_formats(dummy, buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 977) else if (!strcmp(fields[i].name, "rates"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 978) print_rates(dummy, buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 979) snd_iprintf(buffer, "\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 980) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 981) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 982)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 983) static void dummy_proc_write(struct snd_info_entry *entry,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 984) struct snd_info_buffer *buffer)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 985) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 986) struct snd_dummy *dummy = entry->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 987) char line[64];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 988)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 989) while (!snd_info_get_line(buffer, line, sizeof(line))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 990) char item[20];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 991) const char *ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 992) unsigned long long val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 993) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 994)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 995) ptr = snd_info_get_str(item, line, sizeof(item));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 996) for (i = 0; i < ARRAY_SIZE(fields); i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 997) if (!strcmp(item, fields[i].name))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 998) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 999) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1000) if (i >= ARRAY_SIZE(fields))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1001) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1002) snd_info_get_str(item, ptr, sizeof(item));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1003) if (kstrtoull(item, 0, &val))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1004) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1005) if (fields[i].size == sizeof(int))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1006) *get_dummy_int_ptr(dummy, fields[i].offset) = val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1007) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1008) *get_dummy_ll_ptr(dummy, fields[i].offset) = val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1009) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1010) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1011)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1012) static void dummy_proc_init(struct snd_dummy *chip)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1013) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1014) snd_card_rw_proc_new(chip->card, "dummy_pcm", chip,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1015) dummy_proc_read, dummy_proc_write);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1016) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1017) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1018) #define dummy_proc_init(x)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1019) #endif /* CONFIG_SND_DEBUG && CONFIG_SND_PROC_FS */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1020)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1021) static int snd_dummy_probe(struct platform_device *devptr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1022) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1023) struct snd_card *card;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1024) struct snd_dummy *dummy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1025) const struct dummy_model *m = NULL, **mdl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1026) int idx, err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1027) int dev = devptr->id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1028)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1029) err = snd_card_new(&devptr->dev, index[dev], id[dev], THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1030) sizeof(struct snd_dummy), &card);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1031) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1032) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1033) dummy = card->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1034) dummy->card = card;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1035) for (mdl = dummy_models; *mdl && model[dev]; mdl++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1036) if (strcmp(model[dev], (*mdl)->name) == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1037) printk(KERN_INFO
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1038) "snd-dummy: Using model '%s' for card %i\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1039) (*mdl)->name, card->number);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1040) m = dummy->model = *mdl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1041) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1042) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1043) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1044) for (idx = 0; idx < MAX_PCM_DEVICES && idx < pcm_devs[dev]; idx++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1045) if (pcm_substreams[dev] < 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1046) pcm_substreams[dev] = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1047) if (pcm_substreams[dev] > MAX_PCM_SUBSTREAMS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1048) pcm_substreams[dev] = MAX_PCM_SUBSTREAMS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1049) err = snd_card_dummy_pcm(dummy, idx, pcm_substreams[dev]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1050) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1051) goto __nodev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1052) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1053)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1054) dummy->pcm_hw = dummy_pcm_hardware;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1055) if (m) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1056) if (m->formats)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1057) dummy->pcm_hw.formats = m->formats;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1058) if (m->buffer_bytes_max)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1059) dummy->pcm_hw.buffer_bytes_max = m->buffer_bytes_max;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1060) if (m->period_bytes_min)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1061) dummy->pcm_hw.period_bytes_min = m->period_bytes_min;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1062) if (m->period_bytes_max)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1063) dummy->pcm_hw.period_bytes_max = m->period_bytes_max;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1064) if (m->periods_min)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1065) dummy->pcm_hw.periods_min = m->periods_min;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1066) if (m->periods_max)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1067) dummy->pcm_hw.periods_max = m->periods_max;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1068) if (m->rates)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1069) dummy->pcm_hw.rates = m->rates;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1070) if (m->rate_min)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1071) dummy->pcm_hw.rate_min = m->rate_min;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1072) if (m->rate_max)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1073) dummy->pcm_hw.rate_max = m->rate_max;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1074) if (m->channels_min)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1075) dummy->pcm_hw.channels_min = m->channels_min;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1076) if (m->channels_max)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1077) dummy->pcm_hw.channels_max = m->channels_max;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1078) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1079)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1080) err = snd_card_dummy_new_mixer(dummy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1081) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1082) goto __nodev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1083) strcpy(card->driver, "Dummy");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1084) strcpy(card->shortname, "Dummy");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1085) sprintf(card->longname, "Dummy %i", dev + 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1086)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1087) dummy_proc_init(dummy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1088)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1089) err = snd_card_register(card);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1090) if (err == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1091) platform_set_drvdata(devptr, card);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1092) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1093) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1094) __nodev:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1095) snd_card_free(card);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1096) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1097) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1098)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1099) static int snd_dummy_remove(struct platform_device *devptr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1100) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1101) snd_card_free(platform_get_drvdata(devptr));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1102) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1103) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1104)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1105) #ifdef CONFIG_PM_SLEEP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1106) static int snd_dummy_suspend(struct device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1107) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1108) struct snd_card *card = dev_get_drvdata(pdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1109)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1110) snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1111) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1112) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1113)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1114) static int snd_dummy_resume(struct device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1115) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1116) struct snd_card *card = dev_get_drvdata(pdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1117)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1118) snd_power_change_state(card, SNDRV_CTL_POWER_D0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1119) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1120) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1121)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1122) static SIMPLE_DEV_PM_OPS(snd_dummy_pm, snd_dummy_suspend, snd_dummy_resume);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1123) #define SND_DUMMY_PM_OPS &snd_dummy_pm
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1124) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1125) #define SND_DUMMY_PM_OPS NULL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1126) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1127)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1128) #define SND_DUMMY_DRIVER "snd_dummy"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1129)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1130) static struct platform_driver snd_dummy_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1131) .probe = snd_dummy_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1132) .remove = snd_dummy_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1133) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1134) .name = SND_DUMMY_DRIVER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1135) .pm = SND_DUMMY_PM_OPS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1136) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1137) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1138)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1139) static void snd_dummy_unregister_all(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1140) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1141) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1142)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1143) for (i = 0; i < ARRAY_SIZE(devices); ++i)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1144) platform_device_unregister(devices[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1145) platform_driver_unregister(&snd_dummy_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1146) free_fake_buffer();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1147) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1148)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1149) static int __init alsa_card_dummy_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1150) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1151) int i, cards, err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1152)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1153) err = platform_driver_register(&snd_dummy_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1154) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1155) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1156)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1157) err = alloc_fake_buffer();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1158) if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1159) platform_driver_unregister(&snd_dummy_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1160) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1161) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1162)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1163) cards = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1164) for (i = 0; i < SNDRV_CARDS; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1165) struct platform_device *device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1166) if (! enable[i])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1167) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1168) device = platform_device_register_simple(SND_DUMMY_DRIVER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1169) i, NULL, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1170) if (IS_ERR(device))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1171) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1172) if (!platform_get_drvdata(device)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1173) platform_device_unregister(device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1174) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1175) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1176) devices[i] = device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1177) cards++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1178) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1179) if (!cards) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1180) #ifdef MODULE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1181) printk(KERN_ERR "Dummy soundcard not found or device busy\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1182) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1183) snd_dummy_unregister_all();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1184) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1185) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1186) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1187) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1188)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1189) static void __exit alsa_card_dummy_exit(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1190) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1191) snd_dummy_unregister_all();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1192) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1193)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1194) module_init(alsa_card_dummy_init)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1195) module_exit(alsa_card_dummy_exit)
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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