+++ /dev/null
-/*
- * Dummy soundcard
- * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
-#include <sound/driver.h> //giova
-#include <linux/init.h>
-#include <linux/err.h>
-#include <linux/platform_device.h>
-#include <linux/jiffies.h>
-#include <linux/slab.h>
-#include <linux/time.h>
-#include <linux/wait.h>
-#include <linux/moduleparam.h>
-#include <sound/core.h>
-#include <sound/control.h>
-#include <sound/tlv.h>
-#include <sound/pcm.h>
-#include <sound/rawmidi.h>
-#include <sound/initval.h>
-
-
-MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
-MODULE_DESCRIPTION("Dummy soundcard (/dev/null)");
-MODULE_LICENSE("GPL");
-MODULE_SUPPORTED_DEVICE("{{ALSA,Dummy soundcard}}");
-
-#define MAX_PCM_DEVICES 4
-#define MAX_PCM_SUBSTREAMS 128
-#define MAX_MIDI_DEVICES 2
-
-#if 0 /* emu10k1 emulation */
-#define MAX_BUFFER_SIZE (128 * 1024)
-static int emu10k1_playback_constraints(struct snd_pcm_runtime *runtime)
-{
- int err;
- err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
- if (err < 0)
- return err;
- err = snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 256, UINT_MAX);
- if (err < 0)
- return err;
- return 0;
-}
-#define add_playback_constraints emu10k1_playback_constraints
-#endif
-
-#if 0 /* RME9652 emulation */
-#define MAX_BUFFER_SIZE (26 * 64 * 1024)
-#define USE_FORMATS SNDRV_PCM_FMTBIT_S32_LE
-#define USE_CHANNELS_MIN 26
-#define USE_CHANNELS_MAX 26
-#define USE_PERIODS_MIN 2
-#define USE_PERIODS_MAX 2
-#endif
-
-#if 0 /* ICE1712 emulation */
-#define MAX_BUFFER_SIZE (256 * 1024)
-#define USE_FORMATS SNDRV_PCM_FMTBIT_S32_LE
-#define USE_CHANNELS_MIN 10
-#define USE_CHANNELS_MAX 10
-#define USE_PERIODS_MIN 1
-#define USE_PERIODS_MAX 1024
-#endif
-
-#if 0 /* UDA1341 emulation */
-#define MAX_BUFFER_SIZE (16380)
-#define USE_FORMATS SNDRV_PCM_FMTBIT_S16_LE
-#define USE_CHANNELS_MIN 2
-#define USE_CHANNELS_MAX 2
-#define USE_PERIODS_MIN 2
-#define USE_PERIODS_MAX 255
-#endif
-
-#if 0 /* simple AC97 bridge (intel8x0) with 48kHz AC97 only codec */
-#define USE_FORMATS SNDRV_PCM_FMTBIT_S16_LE
-#define USE_CHANNELS_MIN 2
-#define USE_CHANNELS_MAX 2
-#define USE_RATE SNDRV_PCM_RATE_48000
-#define USE_RATE_MIN 48000
-#define USE_RATE_MAX 48000
-#endif
-
-#if 0 /* CA0106 */
-#define USE_FORMATS SNDRV_PCM_FMTBIT_S16_LE
-#define USE_CHANNELS_MIN 2
-#define USE_CHANNELS_MAX 2
-#define USE_RATE (SNDRV_PCM_RATE_48000|SNDRV_PCM_RATE_96000|SNDRV_PCM_RATE_192000)
-#define USE_RATE_MIN 48000
-#define USE_RATE_MAX 192000
-#define MAX_BUFFER_SIZE ((65536-64)*8)
-#define MAX_PERIOD_SIZE (65536-64)
-#define USE_PERIODS_MIN 2
-#define USE_PERIODS_MAX 8
-#endif
-
-
-/* defaults */
-#ifndef MAX_BUFFER_SIZE
-#define MAX_BUFFER_SIZE (64*1024)
-#endif
-#ifndef MAX_PERIOD_SIZE
-#define MAX_PERIOD_SIZE MAX_BUFFER_SIZE
-#endif
-#ifndef USE_FORMATS
-#define USE_FORMATS (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE)
-#endif
-#ifndef USE_RATE
-#define USE_RATE SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000
-#define USE_RATE_MIN 5500
-#define USE_RATE_MAX 48000
-#endif
-#ifndef USE_CHANNELS_MIN
-#define USE_CHANNELS_MIN 1
-#endif
-#ifndef USE_CHANNELS_MAX
-#define USE_CHANNELS_MAX 2
-#endif
-#ifndef USE_PERIODS_MIN
-#define USE_PERIODS_MIN 1
-#endif
-#ifndef USE_PERIODS_MAX
-#define USE_PERIODS_MAX 1024
-#endif
-#ifndef add_playback_constraints
-#define add_playback_constraints(x) 0
-#endif
-#ifndef add_capture_constraints
-#define add_capture_constraints(x) 0
-#endif
-
-static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
-static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
-static int enable[SNDRV_CARDS] = {1, [1 ... (SNDRV_CARDS - 1)] = 0};
-static int pcm_devs[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1};
-static int pcm_substreams[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 128};
-//static int midi_devs[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 2};
-
-module_param_array(index, int, NULL, 0444);
-MODULE_PARM_DESC(index, "Index value for dummy soundcard.");
-module_param_array(id, charp, NULL, 0444);
-MODULE_PARM_DESC(id, "ID string for dummy soundcard.");
-module_param_array(enable, bool, NULL, 0444);
-MODULE_PARM_DESC(enable, "Enable this dummy soundcard.");
-module_param_array(pcm_devs, int, NULL, 0444);
-MODULE_PARM_DESC(pcm_devs, "PCM devices # (0-4) for dummy driver.");
-module_param_array(pcm_substreams, int, NULL, 0444);
-MODULE_PARM_DESC(pcm_substreams, "PCM substreams # (1-64) for dummy driver.");
-//module_param_array(midi_devs, int, NULL, 0444);
-//MODULE_PARM_DESC(midi_devs, "MIDI devices # (0-2) for dummy driver.");
-
-static struct platform_device *devices[SNDRV_CARDS];
-static struct timer_list giovatimer; //giova
-static int giovastarted=0;
-static int giovaindex=0;
-static spinlock_t giovalock;
-struct giovadpcm {
- struct snd_pcm_substream *substream;
- struct snd_dummy_pcm *dpcm;
- int started;
-};
-static struct giovadpcm giovadpcms[MAX_PCM_SUBSTREAMS];
-
-#define MIXER_ADDR_MASTER 0
-#define MIXER_ADDR_LINE 1
-#define MIXER_ADDR_MIC 2
-#define MIXER_ADDR_SYNTH 3
-#define MIXER_ADDR_CD 4
-#define MIXER_ADDR_LAST 4
-
-static void snd_card_dummy_pcm_timer_function(unsigned long data);
-struct snd_dummy {
- struct snd_card *card;
- struct snd_pcm *pcm;
- spinlock_t mixer_lock;
- int mixer_volume[MIXER_ADDR_LAST+1][2];
- int capture_source[MIXER_ADDR_LAST+1][2];
-};
-
-struct snd_dummy_pcm {
- struct snd_dummy *dummy;
- spinlock_t lock;
- struct timer_list timer;
- unsigned int pcm_buffer_size;
- unsigned int pcm_period_size;
- unsigned int pcm_bps; /* bytes per second */
- unsigned int pcm_hz; /* HZ */
- unsigned int pcm_irq_pos; /* IRQ position */
- unsigned int pcm_buf_pos; /* position in buffer */
- struct snd_pcm_substream *substream;
-};
-
-
-static inline void snd_card_dummy_pcm_timer_start(struct snd_dummy_pcm *dpcm)
-{
-int i;
-int found=0;
-
-
-//printk("giova: 1 timer_start %d %p\n", __LINE__, dpcm);
-for(i=0; i<giovaindex+1; i++){
- if(i > MAX_PCM_SUBSTREAMS || giovaindex > MAX_PCM_SUBSTREAMS){
- printk("giova, %s:%d, i=%d, giovaindex=%d dpcm=%p\n", __FILE__, __LINE__, i, giovaindex, dpcm);
- }
-
-if(giovadpcms[i].dpcm == dpcm){
- giovadpcms[i].started=1;
- found=1;
-}
-}
-if(!found){
- printk("skypiax: start, NOT found?\n");
-}
-
-
-
-//printk("giova: 2 timer_start %d %p\n", __LINE__, dpcm);
-}
-
-static inline void snd_card_dummy_pcm_timer_stop(struct snd_dummy_pcm *dpcm)
-{
- //del_timer(&dpcm->timer);
-int i;
-int found=0;
-
-//printk("giova: 1 timer_stop %d %p\n", __LINE__, dpcm);
-for(i=0; i<giovaindex +1; i++){
-
- if(i > MAX_PCM_SUBSTREAMS || giovaindex > MAX_PCM_SUBSTREAMS){
- printk("giova, %s:%d, i=%d, giovaindex=%d dpcm=%p\n", __FILE__, __LINE__, i, giovaindex, dpcm);
- }
-if(giovadpcms[i].dpcm == dpcm){
- giovadpcms[i].started=0;
- found=1;
-}
-}
-if(!found){
- //printk("skypiax: stop, NOT found?\n");
- } else {
- //printk("skypiax: stop, YES found!\n");
- }
-
-
-
-//printk("giova: 2 timer_stop %d %p\n", __LINE__, dpcm);
-}
-
-static int snd_card_dummy_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
-{
- struct snd_pcm_runtime *runtime = substream->runtime;
- struct snd_dummy_pcm *dpcm = runtime->private_data;
- int err = 0;
-
- //spin_lock(&dpcm->lock, flags);
- spin_lock_bh(&giovalock);
- switch (cmd) {
- case SNDRV_PCM_TRIGGER_START:
- case SNDRV_PCM_TRIGGER_RESUME:
-//printk("giova: trigger timer_start %d %p\n", __LINE__, dpcm);
- snd_card_dummy_pcm_timer_start(dpcm);
- break;
- case SNDRV_PCM_TRIGGER_STOP:
- case SNDRV_PCM_TRIGGER_SUSPEND:
-//printk("giova: trigger timer_stop %d %p\n", __LINE__, dpcm);
- snd_card_dummy_pcm_timer_stop(dpcm);
- break;
- default:
- err = -EINVAL;
- break;
- }
- //spin_unlock(&dpcm->lock, flags);
- spin_unlock_bh(&giovalock);
- return 0;
-}
-
-static int snd_card_dummy_pcm_prepare(struct snd_pcm_substream *substream)
-{
- struct snd_pcm_runtime *runtime = substream->runtime;
- struct snd_dummy_pcm *dpcm = runtime->private_data;
- int bps;
-
- bps = snd_pcm_format_width(runtime->format) * runtime->rate *
- runtime->channels / 8;
-
- if (bps <= 0)
- return -EINVAL;
-
- dpcm->pcm_bps = bps;
- dpcm->pcm_hz = HZ;
- dpcm->pcm_buffer_size = snd_pcm_lib_buffer_bytes(substream);
- dpcm->pcm_period_size = snd_pcm_lib_period_bytes(substream);
- dpcm->pcm_irq_pos = 0;
- dpcm->pcm_buf_pos = 0;
- snd_pcm_format_set_silence(runtime->format, runtime->dma_area,
- bytes_to_samples(runtime, runtime->dma_bytes));
-
-//printk("giova: prepare %d %p\n", __LINE__, dpcm);
- return 0;
-}
-
-static void snd_card_dummy_pcm_timer_function(unsigned long data)
-{
- //struct snd_dummy_pcm *dpcm = (struct snd_dummy_pcm *)data;
- struct snd_dummy_pcm *dpcm=NULL;
- //unsigned long flags;
-int i;
-
-
- giovatimer.expires = (HZ/100) + jiffies;
- add_timer(&giovatimer);
-
-for(i=0; i< giovaindex +1; i++) {
-
- if(i > MAX_PCM_SUBSTREAMS || giovaindex > MAX_PCM_SUBSTREAMS){
- printk("giova, %s:%d, i=%d, giovaindex=%d dpcm=%p\n", __FILE__, __LINE__, i, giovaindex, dpcm);
- }
-//printk("giova: timer_func %d i=%d\n", __LINE__, i);
-
-if(giovadpcms[i].started != 1)
- continue;
-dpcm = giovadpcms[i].dpcm;
-if(dpcm==NULL){
- printk("giova: timer_func %d %d NULL: continue\n", __LINE__, i);
- continue;
- }
- if(in_irq())
- printk("giova: timer_func %d %d we are in HARDWARE IRQ\n", __LINE__, i);
- //if(in_softirq())
- //printk("giova: timer_func %d %d we are in SOFT IRQ\n", __LINE__, i);
-//printk("giova: timer_func %d %d\n", __LINE__, i);
- //spin_lock_irqsave(&dpcm->lock, flags);
- spin_lock_bh(&dpcm->lock);
- dpcm->pcm_irq_pos += dpcm->pcm_bps * (HZ/100);
- dpcm->pcm_buf_pos += dpcm->pcm_bps * (HZ/100);
- dpcm->pcm_buf_pos %= dpcm->pcm_buffer_size * dpcm->pcm_hz;
- if (dpcm->pcm_irq_pos >= dpcm->pcm_period_size * dpcm->pcm_hz) {
- dpcm->pcm_irq_pos %= dpcm->pcm_period_size * dpcm->pcm_hz;
- //spin_unlock_irqrestore(&dpcm->lock, flags);
- spin_unlock_bh(&dpcm->lock);
- snd_pcm_period_elapsed(dpcm->substream);
- } else {
- //spin_unlock_irqrestore(&dpcm->lock, flags);
- spin_unlock_bh(&dpcm->lock);
- }
-}
-}
-
-static snd_pcm_uframes_t snd_card_dummy_pcm_pointer(struct snd_pcm_substream *substream)
-{
- struct snd_pcm_runtime *runtime = substream->runtime;
- struct snd_dummy_pcm *dpcm = runtime->private_data;
-
-//printk("giova: pointer %d %p\n", __LINE__, dpcm);
- //return bytes_to_frames(runtime, dpcm->pcm_buf_pos / dpcm->pcm_hz);
- return (dpcm->pcm_buf_pos / dpcm->pcm_hz)/2;
-}
-
-static struct snd_pcm_hardware snd_card_dummy_playback =
-{
- .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
- SNDRV_PCM_INFO_RESUME | SNDRV_PCM_INFO_MMAP_VALID),
- .formats = USE_FORMATS,
- .rates = USE_RATE,
- .rate_min = USE_RATE_MIN,
- .rate_max = USE_RATE_MAX,
- .channels_min = USE_CHANNELS_MIN,
- .channels_max = USE_CHANNELS_MAX,
- .buffer_bytes_max = MAX_BUFFER_SIZE,
- .period_bytes_min = 64,
- .period_bytes_max = MAX_PERIOD_SIZE,
- .periods_min = USE_PERIODS_MIN,
- .periods_max = USE_PERIODS_MAX,
- .fifo_size = 0,
-};
-
-static struct snd_pcm_hardware snd_card_dummy_capture =
-{
- .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
- SNDRV_PCM_INFO_RESUME | SNDRV_PCM_INFO_MMAP_VALID),
- .formats = USE_FORMATS,
- .rates = USE_RATE,
- .rate_min = USE_RATE_MIN,
- .rate_max = USE_RATE_MAX,
- .channels_min = USE_CHANNELS_MIN,
- .channels_max = USE_CHANNELS_MAX,
- .buffer_bytes_max = MAX_BUFFER_SIZE,
- .period_bytes_min = 64,
- .period_bytes_max = MAX_PERIOD_SIZE,
- .periods_min = USE_PERIODS_MIN,
- .periods_max = USE_PERIODS_MAX,
- .fifo_size = 0,
-};
-
-static void snd_card_dummy_runtime_free(struct snd_pcm_runtime *runtime)
-{
-int i;
-//int found=0;
-
-//printk("snd_card_dummy_runtime_free giova 1 giovaindex=%d dpcm=%p runtime=%p\n", giovaindex, runtime->private_data, runtime);
- spin_lock_bh(&giovalock);
-
-for(i=0; i < giovaindex; i++) {
-
- if(i > MAX_PCM_SUBSTREAMS || giovaindex > MAX_PCM_SUBSTREAMS){
- printk("giova, %s:%d, i=%d, giovaindex=%d \n", __FILE__, __LINE__, i, giovaindex);
- }
- //if((giovadpcms[i].substream == substream) && (giovadpcms[i].dpcm == dpcm)){
- if((giovadpcms[i].dpcm == runtime->private_data)){
- //printk("giova, %s:%d, i=%d, giovaindex=%d %p==%p YES I AM!!!!\n", __FILE__, __LINE__, i, giovaindex, giovadpcms[i].dpcm , runtime->private_data);
- //giovadpcms[i].dpcm = NULL;
- //giovadpcms[i].substream = NULL;
- giovadpcms[i].started = 0;
- //break;
- } else {
- //printk("giova, %s:%d, i=%d, giovaindex=%d %p!=%p NOT ME\n", __FILE__, __LINE__, i, giovaindex, giovadpcms[i].dpcm , runtime->private_data);
- }
-}
-
- spin_unlock_bh(&giovalock);
- kfree(runtime->private_data);
-}
-
-static int snd_card_dummy_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *hw_params)
-{
- return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
-}
-
-static int snd_card_dummy_hw_free(struct snd_pcm_substream *substream)
-{
- return snd_pcm_lib_free_pages(substream);
-}
-
-static struct snd_dummy_pcm *new_pcm_stream(struct snd_pcm_substream *substream)
-{
- struct snd_dummy_pcm *dpcm;
- int i;
- int found=0;
-
- //printk("giova, %s:%d, i=%d, giovaindex=%d %p==%p YES I AM!!!!\n", __FILE__, __LINE__, i, giovaindex, giovadpcms[i].dpcm , runtime->private_data);
- //printk("giova, %s:%d, giovaindex=%d\n", __FILE__, __LINE__, giovaindex);
- dpcm = kzalloc(sizeof(*dpcm), GFP_KERNEL);
- //printk("giova, %s:%d, giovaindex=%d\n", __FILE__, __LINE__, giovaindex);
- if (! dpcm){
- //spin_unlock_bh(&giovalock);
- printk("giova, %s:%d, giovaindex=%d NO MEMORY!!!!\n", __FILE__, __LINE__, giovaindex);
- return dpcm;
- }
- //printk("giova, %s:%d, giovaindex=%d dpcm=%p\n", __FILE__, __LINE__, giovaindex, dpcm);
- init_timer(&dpcm->timer);
- //dpcm->timer.data = (unsigned long) dpcm;
- //dpcm->timer.function = snd_card_dummy_pcm_timer_function;
- spin_lock_init(&dpcm->lock);
- dpcm->substream = substream;
-
- spin_lock_bh(&giovalock);
- //printk("giova 1 giovaindex=%d dpcm=%p substream=%p sizeof=%lu\n", giovaindex, dpcm, substream, sizeof(*dpcm));
- for(i=0; i < giovaindex; i++) {
-
- if(i > MAX_PCM_SUBSTREAMS || giovaindex > MAX_PCM_SUBSTREAMS){
- printk("giova, %s:%d, i=%d, giovaindex=%d dpcm=%p\n", __FILE__, __LINE__, i, giovaindex, dpcm);
- }
- //if((giovadpcms[i].substream == substream) && (giovadpcms[i].dpcm == dpcm))
- if((giovadpcms[i].substream == substream)){
- found=1;
- break;
- }
-
- }
-
- if(!found){
-
- giovadpcms[giovaindex].substream=substream;
- giovaindex++;
- //printk("giova 2 giovaindex=%d dpcm=%p substream=%p\n", giovaindex, dpcm, substream);
- }
-
-
-
- found =0;
- for(i=0; i < giovaindex; i++) {
-
- if(i > MAX_PCM_SUBSTREAMS || giovaindex > MAX_PCM_SUBSTREAMS){
- printk("giova, %s:%d, i=%d, giovaindex=%d dpcm=%p\n", __FILE__, __LINE__, i, giovaindex, dpcm);
- }
- if(giovadpcms[i].substream == substream){
- giovadpcms[i].dpcm=dpcm;
- giovadpcms[i].started=0;
- found = 1;
- //printk("giova 3 giovaindex=%d dpcm=%p substream=%p\n", giovaindex, dpcm, substream);
- break;
- }
-
- }
-
- spin_unlock_bh(&giovalock);
- if(!found) {
- printk("skypiax giovaindex=%d NOT found????\n", giovaindex);
- }
-
- //printk("giova, %s:%d, giovaindex=%d\n", __FILE__, __LINE__, giovaindex);
- return dpcm;
-}
-
-static int snd_card_dummy_playback_open(struct snd_pcm_substream *substream)
-{
- struct snd_pcm_runtime *runtime = substream->runtime;
- struct snd_dummy_pcm *dpcm;
- int err;
-
- if ((dpcm = new_pcm_stream(substream)) == NULL)
- return -ENOMEM;
- //printk("giova, %s:%d, giovaindex=%d dpcm=%p\n", __FILE__, __LINE__, giovaindex, dpcm);
- runtime->private_data = dpcm;
- /* makes the infrastructure responsible for freeing dpcm */
- runtime->private_free = snd_card_dummy_runtime_free;
- runtime->hw = snd_card_dummy_playback;
- if (substream->pcm->device & 1) {
- runtime->hw.info &= ~SNDRV_PCM_INFO_INTERLEAVED;
- runtime->hw.info |= SNDRV_PCM_INFO_NONINTERLEAVED;
- }
- if (substream->pcm->device & 2)
- runtime->hw.info &= ~(SNDRV_PCM_INFO_MMAP|SNDRV_PCM_INFO_MMAP_VALID);
- err = add_playback_constraints(runtime);
- if (err < 0)
- return err;
-
- return 0;
-}
-
-static int snd_card_dummy_capture_open(struct snd_pcm_substream *substream)
-{
- struct snd_pcm_runtime *runtime = substream->runtime;
- struct snd_dummy_pcm *dpcm;
- int err;
-
- if ((dpcm = new_pcm_stream(substream)) == NULL)
- return -ENOMEM;
- //printk("giova, %s:%d, giovaindex=%d dpcm=%p\n", __FILE__, __LINE__, giovaindex, dpcm);
- runtime->private_data = dpcm;
- /* makes the infrastructure responsible for freeing dpcm */
- runtime->private_free = snd_card_dummy_runtime_free;
- runtime->hw = snd_card_dummy_capture;
- if (substream->pcm->device == 1) {
- runtime->hw.info &= ~SNDRV_PCM_INFO_INTERLEAVED;
- runtime->hw.info |= SNDRV_PCM_INFO_NONINTERLEAVED;
- }
- if (substream->pcm->device & 2)
- runtime->hw.info &= ~(SNDRV_PCM_INFO_MMAP|SNDRV_PCM_INFO_MMAP_VALID);
- err = add_capture_constraints(runtime);
- if (err < 0)
- return err;
-
- return 0;
-}
-
-static int snd_card_dummy_playback_close(struct snd_pcm_substream *substream)
-{
-//printk("play giova 1 giovaindex=%d dpcm=%p substream=%p\n", giovaindex, substream->private_data, substream);
- snd_card_dummy_pcm_timer_stop(substream->private_data);
- return 0;
-}
-
-static int snd_card_dummy_capture_close(struct snd_pcm_substream *substream)
-{
-//printk("capt giova 2 giovaindex=%d dpcm=%p substream=%p\n", giovaindex, substream->private_data, substream);
- snd_card_dummy_pcm_timer_stop(substream->private_data);
- return 0;
-}
-
-static struct snd_pcm_ops snd_card_dummy_playback_ops = {
- .open = snd_card_dummy_playback_open,
- .close = snd_card_dummy_playback_close,
- .ioctl = snd_pcm_lib_ioctl,
- .hw_params = snd_card_dummy_hw_params,
- .hw_free = snd_card_dummy_hw_free,
- .prepare = snd_card_dummy_pcm_prepare,
- .trigger = snd_card_dummy_pcm_trigger,
- .pointer = snd_card_dummy_pcm_pointer,
-};
-
-static struct snd_pcm_ops snd_card_dummy_capture_ops = {
- .open = snd_card_dummy_capture_open,
- .close = snd_card_dummy_capture_close,
- .ioctl = snd_pcm_lib_ioctl,
- .hw_params = snd_card_dummy_hw_params,
- .hw_free = snd_card_dummy_hw_free,
- .prepare = snd_card_dummy_pcm_prepare,
- .trigger = snd_card_dummy_pcm_trigger,
- .pointer = snd_card_dummy_pcm_pointer,
-};
-
-static int __devinit snd_card_dummy_pcm(struct snd_dummy *dummy, int device,
- int substreams)
-{
- struct snd_pcm *pcm;
- int err;
-
- err = snd_pcm_new(dummy->card, "Dummy PCM", device,
- substreams, substreams, &pcm);
- if (err < 0)
- return err;
- dummy->pcm = pcm;
- snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_card_dummy_playback_ops);
- snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_card_dummy_capture_ops);
- pcm->private_data = dummy;
- pcm->info_flags = 0;
- strcpy(pcm->name, "Dummy PCM");
- snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_CONTINUOUS,
- snd_dma_continuous_data(GFP_KERNEL),
- 128*1024, 1024*1024);
-
- return 0;
-}
-
-#define DUMMY_VOLUME(xname, xindex, addr) \
-{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
- .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
- .name = xname, .index = xindex, \
- .info = snd_dummy_volume_info, \
- .get = snd_dummy_volume_get, .put = snd_dummy_volume_put, \
- .private_value = addr, \
- .tlv = { .p = db_scale_dummy } }
-
-static int snd_dummy_volume_info(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_info *uinfo)
-{
- uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
- uinfo->count = 2;
- uinfo->value.integer.min = -50;
- uinfo->value.integer.max = 100;
- return 0;
-}
-
-static int snd_dummy_volume_get(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
-{
- struct snd_dummy *dummy = snd_kcontrol_chip(kcontrol);
- int addr = kcontrol->private_value;
- //unsigned long flags;
-
- if(in_irq())
- printk("giova: line %d we are in HARDWARE IRQ\n", __LINE__);
-//printk("giova: volume get %d %d\n", __LINE__, addr);
- //spin_lock_irq(&dummy->mixer_lock);
- //spin_lock_irqsave(&dummy->mixer_lock, flags);
- spin_lock_bh(&dummy->mixer_lock);
- ucontrol->value.integer.value[0] = dummy->mixer_volume[addr][0];
- ucontrol->value.integer.value[1] = dummy->mixer_volume[addr][1];
- //spin_unlock_irqrestore(&dummy->mixer_lock, flags);
- spin_unlock_bh(&dummy->mixer_lock);
- return 0;
-}
-
-static int snd_dummy_volume_put(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
-{
- struct snd_dummy *dummy = snd_kcontrol_chip(kcontrol);
- int change, addr = kcontrol->private_value;
- int left, right;
- //unsigned long flags;
-
- if(in_irq())
- printk("giova: line %d we are in HARDWARE IRQ\n", __LINE__);
- left = ucontrol->value.integer.value[0];
- if (left < -50)
- left = -50;
- if (left > 100)
- left = 100;
- right = ucontrol->value.integer.value[1];
- if (right < -50)
- right = -50;
- if (right > 100)
- right = 100;
-//printk("giova: volume put %d %d\n", __LINE__, addr);
- //spin_lock_irq(&dummy->mixer_lock);
- //spin_lock_irqsave(&dummy->mixer_lock, flags);
- spin_lock_bh(&dummy->mixer_lock);
- change = dummy->mixer_volume[addr][0] != left ||
- dummy->mixer_volume[addr][1] != right;
- dummy->mixer_volume[addr][0] = left;
- dummy->mixer_volume[addr][1] = right;
- //spin_unlock_irq(&dummy->mixer_lock);
- //spin_unlock_irqrestore(&dummy->mixer_lock, flags);
- spin_unlock_bh(&dummy->mixer_lock);
- return change;
-}
-
-static const DECLARE_TLV_DB_SCALE(db_scale_dummy, -4500, 30, 0);
-
-#define DUMMY_CAPSRC(xname, xindex, addr) \
-{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
- .info = snd_dummy_capsrc_info, \
- .get = snd_dummy_capsrc_get, .put = snd_dummy_capsrc_put, \
- .private_value = addr }
-
-#define snd_dummy_capsrc_info snd_ctl_boolean_stereo_info
-
-static int snd_dummy_capsrc_get(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
-{
- struct snd_dummy *dummy = snd_kcontrol_chip(kcontrol);
- int addr = kcontrol->private_value;
- //unsigned long flags;
-
- if(in_irq())
- printk("giova: line %d we are in HARDWARE IRQ\n", __LINE__);
- //spin_lock_irq(&dummy->mixer_lock);
- //spin_lock_irqsave(&dummy->mixer_lock, flags);
- spin_lock_bh(&dummy->mixer_lock);
- ucontrol->value.integer.value[0] = dummy->capture_source[addr][0];
- ucontrol->value.integer.value[1] = dummy->capture_source[addr][1];
- //spin_unlock_irq(&dummy->mixer_lock);
- //spin_unlock_irqrestore(&dummy->mixer_lock, flags);
- spin_unlock_bh(&dummy->mixer_lock);
-//printk("giova: capsrc_get %d %d\n", __LINE__, addr);
- return 0;
-}
-
-static int snd_dummy_capsrc_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
-{
- struct snd_dummy *dummy = snd_kcontrol_chip(kcontrol);
- int change, addr = kcontrol->private_value;
- int left, right;
- //unsigned long flags;
-
- if(in_irq())
- printk("giova: line %d we are in HARDWARE IRQ\n", __LINE__);
- left = ucontrol->value.integer.value[0] & 1;
- right = ucontrol->value.integer.value[1] & 1;
- //spin_lock_irq(&dummy->mixer_lock);
- //spin_lock_irqsave(&dummy->mixer_lock, flags);
- spin_lock_bh(&dummy->mixer_lock);
- change = dummy->capture_source[addr][0] != left &&
- dummy->capture_source[addr][1] != right;
- dummy->capture_source[addr][0] = left;
- dummy->capture_source[addr][1] = right;
- //spin_unlock_irq(&dummy->mixer_lock);
- //spin_unlock_irqrestore(&dummy->mixer_lock, flags);
- spin_unlock_bh(&dummy->mixer_lock);
-//printk("giova: capsrc_put %d %d\n", __LINE__, addr);
- return change;
-}
-
-static struct snd_kcontrol_new snd_dummy_controls[] = {
-DUMMY_VOLUME("Master Volume", 0, MIXER_ADDR_MASTER),
-DUMMY_CAPSRC("Master Capture Switch", 0, MIXER_ADDR_MASTER),
-DUMMY_VOLUME("Synth Volume", 0, MIXER_ADDR_SYNTH),
-DUMMY_CAPSRC("Synth Capture Switch", 0, MIXER_ADDR_SYNTH),
-DUMMY_VOLUME("Line Volume", 0, MIXER_ADDR_LINE),
-DUMMY_CAPSRC("Line Capture Switch", 0, MIXER_ADDR_LINE),
-DUMMY_VOLUME("Mic Volume", 0, MIXER_ADDR_MIC),
-DUMMY_CAPSRC("Mic Capture Switch", 0, MIXER_ADDR_MIC),
-DUMMY_VOLUME("CD Volume", 0, MIXER_ADDR_CD),
-DUMMY_CAPSRC("CD Capture Switch", 0, MIXER_ADDR_CD)
-};
-
-static int __devinit snd_card_dummy_new_mixer(struct snd_dummy *dummy)
-{
- struct snd_card *card = dummy->card;
- unsigned int idx;
- int err;
-
- //giova if (snd_BUG_ON(!dummy))
- //giova return -EINVAL;
- spin_lock_init(&dummy->mixer_lock);
- strcpy(card->mixername, "Dummy Mixer");
-//printk("giova: new_mixer %d\n", __LINE__);
- return 0; //giova no mixer
-
- for (idx = 0; idx < ARRAY_SIZE(snd_dummy_controls); idx++) {
- err = snd_ctl_add(card, snd_ctl_new1(&snd_dummy_controls[idx], dummy));
- if (err < 0)
- return err;
- }
- return 0;
-}
-
-static int __devinit snd_dummy_probe(struct platform_device *devptr)
-{
- struct snd_card *card;
- struct snd_dummy *dummy;
- int idx, err;
- int dev = devptr->id;
-
- card = snd_card_new(index[dev], id[dev], THIS_MODULE,
- sizeof(struct snd_dummy));
- if (card == NULL)
- return -ENOMEM;
-
- //giova err = snd_card_create(index[dev], id[dev], THIS_MODULE,
- //giova sizeof(struct snd_dummy), &card);
- //giova if (err < 0)
- //giova return err;
- dummy = card->private_data;
- dummy->card = card;
- for (idx = 0; idx < MAX_PCM_DEVICES && idx < pcm_devs[dev]; idx++) {
- if (pcm_substreams[dev] < 1)
- pcm_substreams[dev] = 1;
- if (pcm_substreams[dev] > MAX_PCM_SUBSTREAMS)
- pcm_substreams[dev] = MAX_PCM_SUBSTREAMS;
- err = snd_card_dummy_pcm(dummy, idx, pcm_substreams[dev]);
- if (err < 0)
- goto __nodev;
- }
- err = snd_card_dummy_new_mixer(dummy);
- if (err < 0)
- goto __nodev;
- strcpy(card->driver, "Dummy");
- strcpy(card->shortname, "Dummy");
- sprintf(card->longname, "Dummy %i", dev + 1);
-
- snd_card_set_dev(card, &devptr->dev);
-
- err = snd_card_register(card);
- if (err == 0) {
- platform_set_drvdata(devptr, card);
- return 0;
- }
- __nodev:
- snd_card_free(card);
- return err;
-}
-
-static int __devexit snd_dummy_remove(struct platform_device *devptr)
-{
-
- del_timer(&giovatimer);
- snd_card_free(platform_get_drvdata(devptr));
- platform_set_drvdata(devptr, NULL);
- return 0;
-}
-
-#ifdef CONFIG_PM
-static int snd_dummy_suspend(struct platform_device *pdev, pm_message_t state)
-{
- struct snd_card *card = platform_get_drvdata(pdev);
- struct snd_dummy *dummy = card->private_data;
-
- snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
- snd_pcm_suspend_all(dummy->pcm);
- return 0;
-}
-
-static int snd_dummy_resume(struct platform_device *pdev)
-{
- struct snd_card *card = platform_get_drvdata(pdev);
-
- snd_power_change_state(card, SNDRV_CTL_POWER_D0);
- return 0;
-}
-#endif
-
-#define SND_DUMMY_DRIVER "snd_dummy"
-
-static struct platform_driver snd_dummy_driver = {
- .probe = snd_dummy_probe,
- .remove = __devexit_p(snd_dummy_remove),
-#ifdef CONFIG_PM
- .suspend = snd_dummy_suspend,
- .resume = snd_dummy_resume,
-#endif
- .driver = {
- .name = SND_DUMMY_DRIVER
- },
-};
-
-static void snd_dummy_unregister_all(void)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(devices); ++i)
- platform_device_unregister(devices[i]);
- platform_driver_unregister(&snd_dummy_driver);
-}
-
-static int __init alsa_card_dummy_init(void)
-{
- int i, cards, err;
-
- err = platform_driver_register(&snd_dummy_driver);
- if (err < 0)
- return err;
-
-if(!giovastarted){
-giovastarted=1;
- spin_lock_init(&giovalock);
-
- spin_lock_bh(&giovalock);
-for(i=0; i<MAX_PCM_SUBSTREAMS;i++){
-
- if(i > MAX_PCM_SUBSTREAMS || giovaindex > MAX_PCM_SUBSTREAMS){
- printk("giova, %s:%d, i=%d, giovaindex=%d \n", __FILE__, __LINE__, i, giovaindex);
- }
-giovadpcms[i].substream=NULL;
-giovadpcms[i].dpcm=NULL;
-giovadpcms[i].started=0;
-}
- init_timer(&giovatimer);
- //giovatimer.data = (unsigned long) dpcm;
- giovatimer.data = (unsigned long) &giovadpcms;
- giovatimer.function = snd_card_dummy_pcm_timer_function;
- giovatimer.expires = (HZ/100) + jiffies;
- add_timer(&giovatimer);
-printk("snd-dummy skypiax driver, %s:%d working on a machine with %dHZ kernel\n", __FILE__, __LINE__, HZ);
- spin_unlock_bh(&giovalock);
-}
-
-
- cards = 0;
- for (i = 0; i < SNDRV_CARDS; i++) {
- struct platform_device *device;
- if (! enable[i])
- continue;
- device = platform_device_register_simple(SND_DUMMY_DRIVER,
- i, NULL, 0);
- if (IS_ERR(device))
- continue;
- if (!platform_get_drvdata(device)) {
- platform_device_unregister(device);
- continue;
- }
- devices[i] = device;
- cards++;
- }
- if (!cards) {
-#ifdef MODULE
- printk(KERN_ERR "Dummy soundcard not found or device busy\n");
-#endif
- snd_dummy_unregister_all();
- return -ENODEV;
- }
- return 0;
-}
-
-static void __exit alsa_card_dummy_exit(void)
-{
- del_timer(&giovatimer);
- snd_dummy_unregister_all();
-}
-
-module_init(alsa_card_dummy_init)
-module_exit(alsa_card_dummy_exit)
projects / thirdparty / freeswitch.git / commitdiff
