Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Dummy soundcard |
| 3 | * Copyright (c) by Jaroslav Kysela <perex@suse.cz> |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation; either version 2 of the License, or |
| 8 | * (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
| 17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 18 | * |
| 19 | */ |
| 20 | |
| 21 | #include <sound/driver.h> |
| 22 | #include <linux/init.h> |
Takashi Iwai | 6e65c1c | 2005-11-17 16:01:56 +0100 | [diff] [blame] | 23 | #include <linux/err.h> |
| 24 | #include <linux/platform_device.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 25 | #include <linux/jiffies.h> |
| 26 | #include <linux/slab.h> |
| 27 | #include <linux/time.h> |
| 28 | #include <linux/wait.h> |
| 29 | #include <linux/moduleparam.h> |
| 30 | #include <sound/core.h> |
| 31 | #include <sound/control.h> |
Takashi Iwai | fb567a8 | 2006-08-23 13:07:19 +0200 | [diff] [blame] | 32 | #include <sound/tlv.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 33 | #include <sound/pcm.h> |
| 34 | #include <sound/rawmidi.h> |
| 35 | #include <sound/initval.h> |
| 36 | |
| 37 | MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>"); |
| 38 | MODULE_DESCRIPTION("Dummy soundcard (/dev/null)"); |
| 39 | MODULE_LICENSE("GPL"); |
| 40 | MODULE_SUPPORTED_DEVICE("{{ALSA,Dummy soundcard}}"); |
| 41 | |
| 42 | #define MAX_PCM_DEVICES 4 |
| 43 | #define MAX_PCM_SUBSTREAMS 16 |
| 44 | #define MAX_MIDI_DEVICES 2 |
| 45 | |
| 46 | #if 0 /* emu10k1 emulation */ |
| 47 | #define MAX_BUFFER_SIZE (128 * 1024) |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 48 | static int emu10k1_playback_constraints(struct snd_pcm_runtime *runtime) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 49 | { |
| 50 | int err; |
| 51 | if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0) |
| 52 | return err; |
| 53 | if ((err = snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 256, UINT_MAX)) < 0) |
| 54 | return err; |
| 55 | return 0; |
| 56 | } |
| 57 | #define add_playback_constraints emu10k1_playback_constraints |
| 58 | #endif |
| 59 | |
| 60 | #if 0 /* RME9652 emulation */ |
| 61 | #define MAX_BUFFER_SIZE (26 * 64 * 1024) |
| 62 | #define USE_FORMATS SNDRV_PCM_FMTBIT_S32_LE |
| 63 | #define USE_CHANNELS_MIN 26 |
| 64 | #define USE_CHANNELS_MAX 26 |
| 65 | #define USE_PERIODS_MIN 2 |
| 66 | #define USE_PERIODS_MAX 2 |
| 67 | #endif |
| 68 | |
| 69 | #if 0 /* ICE1712 emulation */ |
| 70 | #define MAX_BUFFER_SIZE (256 * 1024) |
| 71 | #define USE_FORMATS SNDRV_PCM_FMTBIT_S32_LE |
| 72 | #define USE_CHANNELS_MIN 10 |
| 73 | #define USE_CHANNELS_MAX 10 |
| 74 | #define USE_PERIODS_MIN 1 |
| 75 | #define USE_PERIODS_MAX 1024 |
| 76 | #endif |
| 77 | |
| 78 | #if 0 /* UDA1341 emulation */ |
| 79 | #define MAX_BUFFER_SIZE (16380) |
| 80 | #define USE_FORMATS SNDRV_PCM_FMTBIT_S16_LE |
| 81 | #define USE_CHANNELS_MIN 2 |
| 82 | #define USE_CHANNELS_MAX 2 |
| 83 | #define USE_PERIODS_MIN 2 |
| 84 | #define USE_PERIODS_MAX 255 |
| 85 | #endif |
| 86 | |
| 87 | #if 0 /* simple AC97 bridge (intel8x0) with 48kHz AC97 only codec */ |
| 88 | #define USE_FORMATS SNDRV_PCM_FMTBIT_S16_LE |
| 89 | #define USE_CHANNELS_MIN 2 |
| 90 | #define USE_CHANNELS_MAX 2 |
| 91 | #define USE_RATE SNDRV_PCM_RATE_48000 |
| 92 | #define USE_RATE_MIN 48000 |
| 93 | #define USE_RATE_MAX 48000 |
| 94 | #endif |
| 95 | |
Jaroslav Kysela | 2ad5dd8 | 2006-01-03 14:27:21 +0100 | [diff] [blame] | 96 | #if 0 /* CA0106 */ |
| 97 | #define USE_FORMATS SNDRV_PCM_FMTBIT_S16_LE |
| 98 | #define USE_CHANNELS_MIN 2 |
| 99 | #define USE_CHANNELS_MAX 2 |
| 100 | #define USE_RATE (SNDRV_PCM_RATE_48000|SNDRV_PCM_RATE_96000|SNDRV_PCM_RATE_192000) |
| 101 | #define USE_RATE_MIN 48000 |
| 102 | #define USE_RATE_MAX 192000 |
| 103 | #define MAX_BUFFER_SIZE ((65536-64)*8) |
| 104 | #define MAX_PERIOD_SIZE (65536-64) |
| 105 | #define USE_PERIODS_MIN 2 |
| 106 | #define USE_PERIODS_MAX 8 |
| 107 | #endif |
| 108 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 109 | |
| 110 | /* defaults */ |
| 111 | #ifndef MAX_BUFFER_SIZE |
| 112 | #define MAX_BUFFER_SIZE (64*1024) |
| 113 | #endif |
Jaroslav Kysela | 2ad5dd8 | 2006-01-03 14:27:21 +0100 | [diff] [blame] | 114 | #ifndef MAX_PERIOD_SIZE |
| 115 | #define MAX_PERIOD_SIZE MAX_BUFFER_SIZE |
| 116 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 117 | #ifndef USE_FORMATS |
| 118 | #define USE_FORMATS (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE) |
| 119 | #endif |
| 120 | #ifndef USE_RATE |
| 121 | #define USE_RATE SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000 |
| 122 | #define USE_RATE_MIN 5500 |
| 123 | #define USE_RATE_MAX 48000 |
| 124 | #endif |
| 125 | #ifndef USE_CHANNELS_MIN |
| 126 | #define USE_CHANNELS_MIN 1 |
| 127 | #endif |
| 128 | #ifndef USE_CHANNELS_MAX |
| 129 | #define USE_CHANNELS_MAX 2 |
| 130 | #endif |
| 131 | #ifndef USE_PERIODS_MIN |
| 132 | #define USE_PERIODS_MIN 1 |
| 133 | #endif |
| 134 | #ifndef USE_PERIODS_MAX |
| 135 | #define USE_PERIODS_MAX 1024 |
| 136 | #endif |
| 137 | #ifndef add_playback_constraints |
| 138 | #define add_playback_constraints(x) 0 |
| 139 | #endif |
| 140 | #ifndef add_capture_constraints |
| 141 | #define add_capture_constraints(x) 0 |
| 142 | #endif |
| 143 | |
| 144 | static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ |
| 145 | static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ |
| 146 | static int enable[SNDRV_CARDS] = {1, [1 ... (SNDRV_CARDS - 1)] = 0}; |
| 147 | static int pcm_devs[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1}; |
| 148 | static int pcm_substreams[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 8}; |
| 149 | //static int midi_devs[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 2}; |
| 150 | |
| 151 | module_param_array(index, int, NULL, 0444); |
| 152 | MODULE_PARM_DESC(index, "Index value for dummy soundcard."); |
| 153 | module_param_array(id, charp, NULL, 0444); |
| 154 | MODULE_PARM_DESC(id, "ID string for dummy soundcard."); |
| 155 | module_param_array(enable, bool, NULL, 0444); |
| 156 | MODULE_PARM_DESC(enable, "Enable this dummy soundcard."); |
| 157 | module_param_array(pcm_devs, int, NULL, 0444); |
| 158 | MODULE_PARM_DESC(pcm_devs, "PCM devices # (0-4) for dummy driver."); |
| 159 | module_param_array(pcm_substreams, int, NULL, 0444); |
| 160 | MODULE_PARM_DESC(pcm_substreams, "PCM substreams # (1-16) for dummy driver."); |
| 161 | //module_param_array(midi_devs, int, NULL, 0444); |
| 162 | //MODULE_PARM_DESC(midi_devs, "MIDI devices # (0-2) for dummy driver."); |
| 163 | |
Clemens Ladisch | f7a9275 | 2005-12-07 09:13:42 +0100 | [diff] [blame] | 164 | static struct platform_device *devices[SNDRV_CARDS]; |
| 165 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 166 | #define MIXER_ADDR_MASTER 0 |
| 167 | #define MIXER_ADDR_LINE 1 |
| 168 | #define MIXER_ADDR_MIC 2 |
| 169 | #define MIXER_ADDR_SYNTH 3 |
| 170 | #define MIXER_ADDR_CD 4 |
| 171 | #define MIXER_ADDR_LAST 4 |
| 172 | |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 173 | struct snd_dummy { |
| 174 | struct snd_card *card; |
Takashi Iwai | 6e65c1c | 2005-11-17 16:01:56 +0100 | [diff] [blame] | 175 | struct snd_pcm *pcm; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 176 | spinlock_t mixer_lock; |
| 177 | int mixer_volume[MIXER_ADDR_LAST+1][2]; |
| 178 | int capture_source[MIXER_ADDR_LAST+1][2]; |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 179 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 180 | |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 181 | struct snd_dummy_pcm { |
| 182 | struct snd_dummy *dummy; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 183 | spinlock_t lock; |
| 184 | struct timer_list timer; |
| 185 | unsigned int pcm_size; |
| 186 | unsigned int pcm_count; |
| 187 | unsigned int pcm_bps; /* bytes per second */ |
| 188 | unsigned int pcm_jiffie; /* bytes per one jiffie */ |
| 189 | unsigned int pcm_irq_pos; /* IRQ position */ |
| 190 | unsigned int pcm_buf_pos; /* position in buffer */ |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 191 | struct snd_pcm_substream *substream; |
| 192 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 193 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 194 | |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 195 | static inline void snd_card_dummy_pcm_timer_start(struct snd_dummy_pcm *dpcm) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 196 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 197 | dpcm->timer.expires = 1 + jiffies; |
| 198 | add_timer(&dpcm->timer); |
| 199 | } |
| 200 | |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 201 | static inline void snd_card_dummy_pcm_timer_stop(struct snd_dummy_pcm *dpcm) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 202 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 203 | del_timer(&dpcm->timer); |
| 204 | } |
| 205 | |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 206 | static int snd_card_dummy_pcm_trigger(struct snd_pcm_substream *substream, int cmd) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 207 | { |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 208 | struct snd_pcm_runtime *runtime = substream->runtime; |
| 209 | struct snd_dummy_pcm *dpcm = runtime->private_data; |
Takashi Iwai | c8eb6ba | 2005-11-17 10:20:23 +0100 | [diff] [blame] | 210 | int err = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 211 | |
Takashi Iwai | c8eb6ba | 2005-11-17 10:20:23 +0100 | [diff] [blame] | 212 | spin_lock(&dpcm->lock); |
Takashi Iwai | 6e65c1c | 2005-11-17 16:01:56 +0100 | [diff] [blame] | 213 | switch (cmd) { |
| 214 | case SNDRV_PCM_TRIGGER_START: |
| 215 | case SNDRV_PCM_TRIGGER_RESUME: |
Takashi Iwai | c8eb6ba | 2005-11-17 10:20:23 +0100 | [diff] [blame] | 216 | snd_card_dummy_pcm_timer_start(dpcm); |
Takashi Iwai | 6e65c1c | 2005-11-17 16:01:56 +0100 | [diff] [blame] | 217 | break; |
| 218 | case SNDRV_PCM_TRIGGER_STOP: |
| 219 | case SNDRV_PCM_TRIGGER_SUSPEND: |
Takashi Iwai | c8eb6ba | 2005-11-17 10:20:23 +0100 | [diff] [blame] | 220 | snd_card_dummy_pcm_timer_stop(dpcm); |
Takashi Iwai | 6e65c1c | 2005-11-17 16:01:56 +0100 | [diff] [blame] | 221 | break; |
| 222 | default: |
Takashi Iwai | c8eb6ba | 2005-11-17 10:20:23 +0100 | [diff] [blame] | 223 | err = -EINVAL; |
Takashi Iwai | 6e65c1c | 2005-11-17 16:01:56 +0100 | [diff] [blame] | 224 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 225 | } |
Takashi Iwai | c8eb6ba | 2005-11-17 10:20:23 +0100 | [diff] [blame] | 226 | spin_unlock(&dpcm->lock); |
Takashi Iwai | 6e65c1c | 2005-11-17 16:01:56 +0100 | [diff] [blame] | 227 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 228 | } |
| 229 | |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 230 | static int snd_card_dummy_pcm_prepare(struct snd_pcm_substream *substream) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 231 | { |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 232 | struct snd_pcm_runtime *runtime = substream->runtime; |
| 233 | struct snd_dummy_pcm *dpcm = runtime->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 234 | unsigned int bps; |
| 235 | |
| 236 | bps = runtime->rate * runtime->channels; |
| 237 | bps *= snd_pcm_format_width(runtime->format); |
| 238 | bps /= 8; |
| 239 | if (bps <= 0) |
| 240 | return -EINVAL; |
| 241 | dpcm->pcm_bps = bps; |
| 242 | dpcm->pcm_jiffie = bps / HZ; |
| 243 | dpcm->pcm_size = snd_pcm_lib_buffer_bytes(substream); |
| 244 | dpcm->pcm_count = snd_pcm_lib_period_bytes(substream); |
| 245 | dpcm->pcm_irq_pos = 0; |
| 246 | dpcm->pcm_buf_pos = 0; |
| 247 | return 0; |
| 248 | } |
| 249 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 250 | static void snd_card_dummy_pcm_timer_function(unsigned long data) |
| 251 | { |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 252 | struct snd_dummy_pcm *dpcm = (struct snd_dummy_pcm *)data; |
Takashi Iwai | b32425a | 2005-11-18 18:52:14 +0100 | [diff] [blame] | 253 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 254 | |
Takashi Iwai | b32425a | 2005-11-18 18:52:14 +0100 | [diff] [blame] | 255 | spin_lock_irqsave(&dpcm->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 256 | dpcm->timer.expires = 1 + jiffies; |
| 257 | add_timer(&dpcm->timer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 258 | dpcm->pcm_irq_pos += dpcm->pcm_jiffie; |
| 259 | dpcm->pcm_buf_pos += dpcm->pcm_jiffie; |
| 260 | dpcm->pcm_buf_pos %= dpcm->pcm_size; |
| 261 | if (dpcm->pcm_irq_pos >= dpcm->pcm_count) { |
| 262 | dpcm->pcm_irq_pos %= dpcm->pcm_count; |
Takashi Iwai | b32425a | 2005-11-18 18:52:14 +0100 | [diff] [blame] | 263 | spin_unlock_irqrestore(&dpcm->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 264 | snd_pcm_period_elapsed(dpcm->substream); |
Takashi Iwai | b32425a | 2005-11-18 18:52:14 +0100 | [diff] [blame] | 265 | } else |
| 266 | spin_unlock_irqrestore(&dpcm->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 267 | } |
| 268 | |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 269 | static snd_pcm_uframes_t snd_card_dummy_pcm_pointer(struct snd_pcm_substream *substream) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 270 | { |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 271 | struct snd_pcm_runtime *runtime = substream->runtime; |
| 272 | struct snd_dummy_pcm *dpcm = runtime->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 273 | |
| 274 | return bytes_to_frames(runtime, dpcm->pcm_buf_pos); |
| 275 | } |
| 276 | |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 277 | static struct snd_pcm_hardware snd_card_dummy_playback = |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 278 | { |
| 279 | .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | |
Takashi Iwai | 6e65c1c | 2005-11-17 16:01:56 +0100 | [diff] [blame] | 280 | SNDRV_PCM_INFO_RESUME | SNDRV_PCM_INFO_MMAP_VALID), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 281 | .formats = USE_FORMATS, |
| 282 | .rates = USE_RATE, |
| 283 | .rate_min = USE_RATE_MIN, |
| 284 | .rate_max = USE_RATE_MAX, |
| 285 | .channels_min = USE_CHANNELS_MIN, |
| 286 | .channels_max = USE_CHANNELS_MAX, |
| 287 | .buffer_bytes_max = MAX_BUFFER_SIZE, |
| 288 | .period_bytes_min = 64, |
Takashi Iwai | e05d696 | 2006-08-17 17:12:19 +0200 | [diff] [blame] | 289 | .period_bytes_max = MAX_PERIOD_SIZE, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 290 | .periods_min = USE_PERIODS_MIN, |
| 291 | .periods_max = USE_PERIODS_MAX, |
| 292 | .fifo_size = 0, |
| 293 | }; |
| 294 | |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 295 | static struct snd_pcm_hardware snd_card_dummy_capture = |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 296 | { |
| 297 | .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | |
Takashi Iwai | 6e65c1c | 2005-11-17 16:01:56 +0100 | [diff] [blame] | 298 | SNDRV_PCM_INFO_RESUME | SNDRV_PCM_INFO_MMAP_VALID), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 299 | .formats = USE_FORMATS, |
| 300 | .rates = USE_RATE, |
| 301 | .rate_min = USE_RATE_MIN, |
| 302 | .rate_max = USE_RATE_MAX, |
| 303 | .channels_min = USE_CHANNELS_MIN, |
| 304 | .channels_max = USE_CHANNELS_MAX, |
| 305 | .buffer_bytes_max = MAX_BUFFER_SIZE, |
| 306 | .period_bytes_min = 64, |
Jaroslav Kysela | 2ad5dd8 | 2006-01-03 14:27:21 +0100 | [diff] [blame] | 307 | .period_bytes_max = MAX_PERIOD_SIZE, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 308 | .periods_min = USE_PERIODS_MIN, |
| 309 | .periods_max = USE_PERIODS_MAX, |
| 310 | .fifo_size = 0, |
| 311 | }; |
| 312 | |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 313 | static void snd_card_dummy_runtime_free(struct snd_pcm_runtime *runtime) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 314 | { |
Takashi Iwai | c8eb6ba | 2005-11-17 10:20:23 +0100 | [diff] [blame] | 315 | kfree(runtime->private_data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 316 | } |
| 317 | |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 318 | static int snd_card_dummy_hw_params(struct snd_pcm_substream *substream, |
| 319 | struct snd_pcm_hw_params *hw_params) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 320 | { |
| 321 | return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params)); |
| 322 | } |
| 323 | |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 324 | static int snd_card_dummy_hw_free(struct snd_pcm_substream *substream) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 325 | { |
| 326 | return snd_pcm_lib_free_pages(substream); |
| 327 | } |
| 328 | |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 329 | static struct snd_dummy_pcm *new_pcm_stream(struct snd_pcm_substream *substream) |
Takashi Iwai | c8eb6ba | 2005-11-17 10:20:23 +0100 | [diff] [blame] | 330 | { |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 331 | struct snd_dummy_pcm *dpcm; |
Takashi Iwai | c8eb6ba | 2005-11-17 10:20:23 +0100 | [diff] [blame] | 332 | |
| 333 | dpcm = kzalloc(sizeof(*dpcm), GFP_KERNEL); |
| 334 | if (! dpcm) |
| 335 | return dpcm; |
| 336 | init_timer(&dpcm->timer); |
| 337 | dpcm->timer.data = (unsigned long) dpcm; |
| 338 | dpcm->timer.function = snd_card_dummy_pcm_timer_function; |
| 339 | spin_lock_init(&dpcm->lock); |
| 340 | dpcm->substream = substream; |
| 341 | return dpcm; |
| 342 | } |
| 343 | |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 344 | static int snd_card_dummy_playback_open(struct snd_pcm_substream *substream) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 345 | { |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 346 | struct snd_pcm_runtime *runtime = substream->runtime; |
| 347 | struct snd_dummy_pcm *dpcm; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 348 | int err; |
| 349 | |
Takashi Iwai | c8eb6ba | 2005-11-17 10:20:23 +0100 | [diff] [blame] | 350 | if ((dpcm = new_pcm_stream(substream)) == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 351 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 352 | runtime->private_data = dpcm; |
| 353 | runtime->private_free = snd_card_dummy_runtime_free; |
| 354 | runtime->hw = snd_card_dummy_playback; |
| 355 | if (substream->pcm->device & 1) { |
| 356 | runtime->hw.info &= ~SNDRV_PCM_INFO_INTERLEAVED; |
| 357 | runtime->hw.info |= SNDRV_PCM_INFO_NONINTERLEAVED; |
| 358 | } |
| 359 | if (substream->pcm->device & 2) |
| 360 | runtime->hw.info &= ~(SNDRV_PCM_INFO_MMAP|SNDRV_PCM_INFO_MMAP_VALID); |
| 361 | if ((err = add_playback_constraints(runtime)) < 0) { |
| 362 | kfree(dpcm); |
| 363 | return err; |
| 364 | } |
| 365 | |
| 366 | return 0; |
| 367 | } |
| 368 | |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 369 | static int snd_card_dummy_capture_open(struct snd_pcm_substream *substream) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 370 | { |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 371 | struct snd_pcm_runtime *runtime = substream->runtime; |
| 372 | struct snd_dummy_pcm *dpcm; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 373 | int err; |
| 374 | |
Takashi Iwai | c8eb6ba | 2005-11-17 10:20:23 +0100 | [diff] [blame] | 375 | if ((dpcm = new_pcm_stream(substream)) == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 376 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 377 | runtime->private_data = dpcm; |
| 378 | runtime->private_free = snd_card_dummy_runtime_free; |
| 379 | runtime->hw = snd_card_dummy_capture; |
| 380 | if (substream->pcm->device == 1) { |
| 381 | runtime->hw.info &= ~SNDRV_PCM_INFO_INTERLEAVED; |
| 382 | runtime->hw.info |= SNDRV_PCM_INFO_NONINTERLEAVED; |
| 383 | } |
| 384 | if (substream->pcm->device & 2) |
| 385 | runtime->hw.info &= ~(SNDRV_PCM_INFO_MMAP|SNDRV_PCM_INFO_MMAP_VALID); |
| 386 | if ((err = add_capture_constraints(runtime)) < 0) { |
| 387 | kfree(dpcm); |
| 388 | return err; |
| 389 | } |
| 390 | |
| 391 | return 0; |
| 392 | } |
| 393 | |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 394 | static int snd_card_dummy_playback_close(struct snd_pcm_substream *substream) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 395 | { |
| 396 | return 0; |
| 397 | } |
| 398 | |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 399 | static int snd_card_dummy_capture_close(struct snd_pcm_substream *substream) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 400 | { |
| 401 | return 0; |
| 402 | } |
| 403 | |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 404 | static struct snd_pcm_ops snd_card_dummy_playback_ops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 405 | .open = snd_card_dummy_playback_open, |
| 406 | .close = snd_card_dummy_playback_close, |
| 407 | .ioctl = snd_pcm_lib_ioctl, |
| 408 | .hw_params = snd_card_dummy_hw_params, |
| 409 | .hw_free = snd_card_dummy_hw_free, |
Takashi Iwai | c8eb6ba | 2005-11-17 10:20:23 +0100 | [diff] [blame] | 410 | .prepare = snd_card_dummy_pcm_prepare, |
| 411 | .trigger = snd_card_dummy_pcm_trigger, |
| 412 | .pointer = snd_card_dummy_pcm_pointer, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 413 | }; |
| 414 | |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 415 | static struct snd_pcm_ops snd_card_dummy_capture_ops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 416 | .open = snd_card_dummy_capture_open, |
| 417 | .close = snd_card_dummy_capture_close, |
| 418 | .ioctl = snd_pcm_lib_ioctl, |
| 419 | .hw_params = snd_card_dummy_hw_params, |
| 420 | .hw_free = snd_card_dummy_hw_free, |
Takashi Iwai | c8eb6ba | 2005-11-17 10:20:23 +0100 | [diff] [blame] | 421 | .prepare = snd_card_dummy_pcm_prepare, |
| 422 | .trigger = snd_card_dummy_pcm_trigger, |
| 423 | .pointer = snd_card_dummy_pcm_pointer, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 424 | }; |
| 425 | |
Prarit Bhargava | 788c604 | 2007-02-13 13:11:11 +0100 | [diff] [blame] | 426 | static int __devinit snd_card_dummy_pcm(struct snd_dummy *dummy, int device, |
| 427 | int substreams) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 428 | { |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 429 | struct snd_pcm *pcm; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 430 | int err; |
| 431 | |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 432 | if ((err = snd_pcm_new(dummy->card, "Dummy PCM", device, |
| 433 | substreams, substreams, &pcm)) < 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 434 | return err; |
Takashi Iwai | 6e65c1c | 2005-11-17 16:01:56 +0100 | [diff] [blame] | 435 | dummy->pcm = pcm; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 436 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_card_dummy_playback_ops); |
| 437 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_card_dummy_capture_ops); |
| 438 | pcm->private_data = dummy; |
| 439 | pcm->info_flags = 0; |
| 440 | strcpy(pcm->name, "Dummy PCM"); |
| 441 | snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_CONTINUOUS, |
| 442 | snd_dma_continuous_data(GFP_KERNEL), |
| 443 | 0, 64*1024); |
| 444 | return 0; |
| 445 | } |
| 446 | |
| 447 | #define DUMMY_VOLUME(xname, xindex, addr) \ |
Takashi Iwai | fb567a8 | 2006-08-23 13:07:19 +0200 | [diff] [blame] | 448 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ |
| 449 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \ |
| 450 | .name = xname, .index = xindex, \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 451 | .info = snd_dummy_volume_info, \ |
| 452 | .get = snd_dummy_volume_get, .put = snd_dummy_volume_put, \ |
Takashi Iwai | fb567a8 | 2006-08-23 13:07:19 +0200 | [diff] [blame] | 453 | .private_value = addr, \ |
| 454 | .tlv = { .p = db_scale_dummy } } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 455 | |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 456 | static int snd_dummy_volume_info(struct snd_kcontrol *kcontrol, |
| 457 | struct snd_ctl_elem_info *uinfo) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 458 | { |
| 459 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
| 460 | uinfo->count = 2; |
| 461 | uinfo->value.integer.min = -50; |
| 462 | uinfo->value.integer.max = 100; |
| 463 | return 0; |
| 464 | } |
| 465 | |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 466 | static int snd_dummy_volume_get(struct snd_kcontrol *kcontrol, |
| 467 | struct snd_ctl_elem_value *ucontrol) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 468 | { |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 469 | struct snd_dummy *dummy = snd_kcontrol_chip(kcontrol); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 470 | int addr = kcontrol->private_value; |
| 471 | |
Takashi Iwai | c8eb6ba | 2005-11-17 10:20:23 +0100 | [diff] [blame] | 472 | spin_lock_irq(&dummy->mixer_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 473 | ucontrol->value.integer.value[0] = dummy->mixer_volume[addr][0]; |
| 474 | ucontrol->value.integer.value[1] = dummy->mixer_volume[addr][1]; |
Takashi Iwai | c8eb6ba | 2005-11-17 10:20:23 +0100 | [diff] [blame] | 475 | spin_unlock_irq(&dummy->mixer_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 476 | return 0; |
| 477 | } |
| 478 | |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 479 | static int snd_dummy_volume_put(struct snd_kcontrol *kcontrol, |
| 480 | struct snd_ctl_elem_value *ucontrol) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 481 | { |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 482 | struct snd_dummy *dummy = snd_kcontrol_chip(kcontrol); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 483 | int change, addr = kcontrol->private_value; |
| 484 | int left, right; |
| 485 | |
| 486 | left = ucontrol->value.integer.value[0]; |
| 487 | if (left < -50) |
| 488 | left = -50; |
| 489 | if (left > 100) |
| 490 | left = 100; |
| 491 | right = ucontrol->value.integer.value[1]; |
| 492 | if (right < -50) |
| 493 | right = -50; |
| 494 | if (right > 100) |
| 495 | right = 100; |
Takashi Iwai | c8eb6ba | 2005-11-17 10:20:23 +0100 | [diff] [blame] | 496 | spin_lock_irq(&dummy->mixer_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 497 | change = dummy->mixer_volume[addr][0] != left || |
| 498 | dummy->mixer_volume[addr][1] != right; |
| 499 | dummy->mixer_volume[addr][0] = left; |
| 500 | dummy->mixer_volume[addr][1] = right; |
Takashi Iwai | c8eb6ba | 2005-11-17 10:20:23 +0100 | [diff] [blame] | 501 | spin_unlock_irq(&dummy->mixer_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 502 | return change; |
| 503 | } |
| 504 | |
Takashi Iwai | 0cb29ea | 2007-01-29 15:33:49 +0100 | [diff] [blame] | 505 | static const DECLARE_TLV_DB_SCALE(db_scale_dummy, -4500, 30, 0); |
Takashi Iwai | fb567a8 | 2006-08-23 13:07:19 +0200 | [diff] [blame] | 506 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 507 | #define DUMMY_CAPSRC(xname, xindex, addr) \ |
| 508 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \ |
| 509 | .info = snd_dummy_capsrc_info, \ |
| 510 | .get = snd_dummy_capsrc_get, .put = snd_dummy_capsrc_put, \ |
| 511 | .private_value = addr } |
| 512 | |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 513 | static int snd_dummy_capsrc_info(struct snd_kcontrol *kcontrol, |
| 514 | struct snd_ctl_elem_info *uinfo) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 515 | { |
| 516 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
| 517 | uinfo->count = 2; |
| 518 | uinfo->value.integer.min = 0; |
| 519 | uinfo->value.integer.max = 1; |
| 520 | return 0; |
| 521 | } |
| 522 | |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 523 | static int snd_dummy_capsrc_get(struct snd_kcontrol *kcontrol, |
| 524 | struct snd_ctl_elem_value *ucontrol) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 525 | { |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 526 | struct snd_dummy *dummy = snd_kcontrol_chip(kcontrol); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 527 | int addr = kcontrol->private_value; |
| 528 | |
Takashi Iwai | c8eb6ba | 2005-11-17 10:20:23 +0100 | [diff] [blame] | 529 | spin_lock_irq(&dummy->mixer_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 530 | ucontrol->value.integer.value[0] = dummy->capture_source[addr][0]; |
| 531 | ucontrol->value.integer.value[1] = dummy->capture_source[addr][1]; |
Takashi Iwai | c8eb6ba | 2005-11-17 10:20:23 +0100 | [diff] [blame] | 532 | spin_unlock_irq(&dummy->mixer_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 533 | return 0; |
| 534 | } |
| 535 | |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 536 | static int snd_dummy_capsrc_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 537 | { |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 538 | struct snd_dummy *dummy = snd_kcontrol_chip(kcontrol); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 539 | int change, addr = kcontrol->private_value; |
| 540 | int left, right; |
| 541 | |
| 542 | left = ucontrol->value.integer.value[0] & 1; |
| 543 | right = ucontrol->value.integer.value[1] & 1; |
Takashi Iwai | c8eb6ba | 2005-11-17 10:20:23 +0100 | [diff] [blame] | 544 | spin_lock_irq(&dummy->mixer_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 545 | change = dummy->capture_source[addr][0] != left && |
| 546 | dummy->capture_source[addr][1] != right; |
| 547 | dummy->capture_source[addr][0] = left; |
| 548 | dummy->capture_source[addr][1] = right; |
Takashi Iwai | c8eb6ba | 2005-11-17 10:20:23 +0100 | [diff] [blame] | 549 | spin_unlock_irq(&dummy->mixer_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 550 | return change; |
| 551 | } |
| 552 | |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 553 | static struct snd_kcontrol_new snd_dummy_controls[] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 554 | DUMMY_VOLUME("Master Volume", 0, MIXER_ADDR_MASTER), |
| 555 | DUMMY_CAPSRC("Master Capture Switch", 0, MIXER_ADDR_MASTER), |
| 556 | DUMMY_VOLUME("Synth Volume", 0, MIXER_ADDR_SYNTH), |
Takashi Iwai | e05d696 | 2006-08-17 17:12:19 +0200 | [diff] [blame] | 557 | DUMMY_CAPSRC("Synth Capture Switch", 0, MIXER_ADDR_SYNTH), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 558 | DUMMY_VOLUME("Line Volume", 0, MIXER_ADDR_LINE), |
Takashi Iwai | e05d696 | 2006-08-17 17:12:19 +0200 | [diff] [blame] | 559 | DUMMY_CAPSRC("Line Capture Switch", 0, MIXER_ADDR_LINE), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 560 | DUMMY_VOLUME("Mic Volume", 0, MIXER_ADDR_MIC), |
Takashi Iwai | e05d696 | 2006-08-17 17:12:19 +0200 | [diff] [blame] | 561 | DUMMY_CAPSRC("Mic Capture Switch", 0, MIXER_ADDR_MIC), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 562 | DUMMY_VOLUME("CD Volume", 0, MIXER_ADDR_CD), |
Takashi Iwai | e05d696 | 2006-08-17 17:12:19 +0200 | [diff] [blame] | 563 | DUMMY_CAPSRC("CD Capture Switch", 0, MIXER_ADDR_CD) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 564 | }; |
| 565 | |
Prarit Bhargava | 788c604 | 2007-02-13 13:11:11 +0100 | [diff] [blame] | 566 | static int __devinit snd_card_dummy_new_mixer(struct snd_dummy *dummy) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 567 | { |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 568 | struct snd_card *card = dummy->card; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 569 | unsigned int idx; |
| 570 | int err; |
| 571 | |
| 572 | snd_assert(dummy != NULL, return -EINVAL); |
| 573 | spin_lock_init(&dummy->mixer_lock); |
| 574 | strcpy(card->mixername, "Dummy Mixer"); |
| 575 | |
| 576 | for (idx = 0; idx < ARRAY_SIZE(snd_dummy_controls); idx++) { |
| 577 | if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_dummy_controls[idx], dummy))) < 0) |
| 578 | return err; |
| 579 | } |
| 580 | return 0; |
| 581 | } |
| 582 | |
Prarit Bhargava | 788c604 | 2007-02-13 13:11:11 +0100 | [diff] [blame] | 583 | static int __devinit snd_dummy_probe(struct platform_device *devptr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 584 | { |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 585 | struct snd_card *card; |
| 586 | struct snd_dummy *dummy; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 587 | int idx, err; |
Takashi Iwai | 6e65c1c | 2005-11-17 16:01:56 +0100 | [diff] [blame] | 588 | int dev = devptr->id; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 589 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 590 | card = snd_card_new(index[dev], id[dev], THIS_MODULE, |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 591 | sizeof(struct snd_dummy)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 592 | if (card == NULL) |
| 593 | return -ENOMEM; |
Takashi Iwai | 4a4d2cf | 2005-11-17 14:27:28 +0100 | [diff] [blame] | 594 | dummy = card->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 595 | dummy->card = card; |
| 596 | for (idx = 0; idx < MAX_PCM_DEVICES && idx < pcm_devs[dev]; idx++) { |
| 597 | if (pcm_substreams[dev] < 1) |
| 598 | pcm_substreams[dev] = 1; |
| 599 | if (pcm_substreams[dev] > MAX_PCM_SUBSTREAMS) |
| 600 | pcm_substreams[dev] = MAX_PCM_SUBSTREAMS; |
| 601 | if ((err = snd_card_dummy_pcm(dummy, idx, pcm_substreams[dev])) < 0) |
| 602 | goto __nodev; |
| 603 | } |
| 604 | if ((err = snd_card_dummy_new_mixer(dummy)) < 0) |
| 605 | goto __nodev; |
| 606 | strcpy(card->driver, "Dummy"); |
| 607 | strcpy(card->shortname, "Dummy"); |
| 608 | sprintf(card->longname, "Dummy %i", dev + 1); |
Takashi Iwai | 16dab54 | 2005-09-05 17:17:58 +0200 | [diff] [blame] | 609 | |
Takashi Iwai | 6e65c1c | 2005-11-17 16:01:56 +0100 | [diff] [blame] | 610 | snd_card_set_dev(card, &devptr->dev); |
Takashi Iwai | 16dab54 | 2005-09-05 17:17:58 +0200 | [diff] [blame] | 611 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 612 | if ((err = snd_card_register(card)) == 0) { |
Takashi Iwai | 6e65c1c | 2005-11-17 16:01:56 +0100 | [diff] [blame] | 613 | platform_set_drvdata(devptr, card); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 614 | return 0; |
| 615 | } |
| 616 | __nodev: |
| 617 | snd_card_free(card); |
| 618 | return err; |
| 619 | } |
| 620 | |
Prarit Bhargava | 788c604 | 2007-02-13 13:11:11 +0100 | [diff] [blame] | 621 | static int __devexit snd_dummy_remove(struct platform_device *devptr) |
Takashi Iwai | 6e65c1c | 2005-11-17 16:01:56 +0100 | [diff] [blame] | 622 | { |
| 623 | snd_card_free(platform_get_drvdata(devptr)); |
| 624 | platform_set_drvdata(devptr, NULL); |
| 625 | return 0; |
| 626 | } |
| 627 | |
| 628 | #ifdef CONFIG_PM |
| 629 | static int snd_dummy_suspend(struct platform_device *pdev, pm_message_t state) |
| 630 | { |
| 631 | struct snd_card *card = platform_get_drvdata(pdev); |
| 632 | struct snd_dummy *dummy = card->private_data; |
| 633 | |
| 634 | snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); |
| 635 | snd_pcm_suspend_all(dummy->pcm); |
| 636 | return 0; |
| 637 | } |
| 638 | |
| 639 | static int snd_dummy_resume(struct platform_device *pdev) |
| 640 | { |
| 641 | struct snd_card *card = platform_get_drvdata(pdev); |
| 642 | |
| 643 | snd_power_change_state(card, SNDRV_CTL_POWER_D0); |
| 644 | return 0; |
| 645 | } |
| 646 | #endif |
| 647 | |
| 648 | #define SND_DUMMY_DRIVER "snd_dummy" |
| 649 | |
| 650 | static struct platform_driver snd_dummy_driver = { |
| 651 | .probe = snd_dummy_probe, |
Prarit Bhargava | 788c604 | 2007-02-13 13:11:11 +0100 | [diff] [blame] | 652 | .remove = __devexit_p(snd_dummy_remove), |
Takashi Iwai | 6e65c1c | 2005-11-17 16:01:56 +0100 | [diff] [blame] | 653 | #ifdef CONFIG_PM |
| 654 | .suspend = snd_dummy_suspend, |
| 655 | .resume = snd_dummy_resume, |
| 656 | #endif |
| 657 | .driver = { |
| 658 | .name = SND_DUMMY_DRIVER |
| 659 | }, |
| 660 | }; |
| 661 | |
Randy Dunlap | c12aad6 | 2007-06-25 12:08:01 +0200 | [diff] [blame] | 662 | static void snd_dummy_unregister_all(void) |
Clemens Ladisch | f7a9275 | 2005-12-07 09:13:42 +0100 | [diff] [blame] | 663 | { |
| 664 | int i; |
| 665 | |
| 666 | for (i = 0; i < ARRAY_SIZE(devices); ++i) |
| 667 | platform_device_unregister(devices[i]); |
| 668 | platform_driver_unregister(&snd_dummy_driver); |
| 669 | } |
| 670 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 671 | static int __init alsa_card_dummy_init(void) |
| 672 | { |
Takashi Iwai | 6e65c1c | 2005-11-17 16:01:56 +0100 | [diff] [blame] | 673 | int i, cards, err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 674 | |
Takashi Iwai | 6e65c1c | 2005-11-17 16:01:56 +0100 | [diff] [blame] | 675 | if ((err = platform_driver_register(&snd_dummy_driver)) < 0) |
| 676 | return err; |
| 677 | |
| 678 | cards = 0; |
Takashi Iwai | 8278ca8 | 2006-02-20 11:57:34 +0100 | [diff] [blame] | 679 | for (i = 0; i < SNDRV_CARDS; i++) { |
Takashi Iwai | 6e65c1c | 2005-11-17 16:01:56 +0100 | [diff] [blame] | 680 | struct platform_device *device; |
Takashi Iwai | 8278ca8 | 2006-02-20 11:57:34 +0100 | [diff] [blame] | 681 | if (! enable[i]) |
| 682 | continue; |
Takashi Iwai | 6e65c1c | 2005-11-17 16:01:56 +0100 | [diff] [blame] | 683 | device = platform_device_register_simple(SND_DUMMY_DRIVER, |
| 684 | i, NULL, 0); |
Rene Herman | a182ee9 | 2006-04-13 12:57:11 +0200 | [diff] [blame] | 685 | if (IS_ERR(device)) |
| 686 | continue; |
Rene Herman | 7152447 | 2006-04-13 12:58:06 +0200 | [diff] [blame] | 687 | if (!platform_get_drvdata(device)) { |
| 688 | platform_device_unregister(device); |
| 689 | continue; |
| 690 | } |
Clemens Ladisch | f7a9275 | 2005-12-07 09:13:42 +0100 | [diff] [blame] | 691 | devices[i] = device; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 692 | cards++; |
| 693 | } |
| 694 | if (!cards) { |
| 695 | #ifdef MODULE |
| 696 | printk(KERN_ERR "Dummy soundcard not found or device busy\n"); |
| 697 | #endif |
Rene Herman | a182ee9 | 2006-04-13 12:57:11 +0200 | [diff] [blame] | 698 | snd_dummy_unregister_all(); |
| 699 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 700 | } |
| 701 | return 0; |
| 702 | } |
| 703 | |
| 704 | static void __exit alsa_card_dummy_exit(void) |
| 705 | { |
Clemens Ladisch | f7a9275 | 2005-12-07 09:13:42 +0100 | [diff] [blame] | 706 | snd_dummy_unregister_all(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 707 | } |
| 708 | |
| 709 | module_init(alsa_card_dummy_init) |
| 710 | module_exit(alsa_card_dummy_exit) |