From 9b93b1dc8bb2c5044bf2f08a34a0060550af132b Mon Sep 17 00:00:00 2001 From: Giovanni Maruzzelli Date: Wed, 19 Aug 2009 13:42:46 +0000 Subject: [PATCH] skypiax: added files in mod_skypiax/kernel/ directory, eg: how to make a kernel for centos git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@14566 d0543943-73ff-0310-b7d9-9358b9ac24b2 --- .../mod_skypiax/kernel/README-linux-2.6.24.7 | 12 + .../mod_skypiax/kernel/dummy.c.skypiax | 958 ++++++++++++++++++ 2 files changed, 970 insertions(+) create mode 100644 src/mod/endpoints/mod_skypiax/kernel/README-linux-2.6.24.7 create mode 100644 src/mod/endpoints/mod_skypiax/kernel/dummy.c.skypiax diff --git a/src/mod/endpoints/mod_skypiax/kernel/README-linux-2.6.24.7 b/src/mod/endpoints/mod_skypiax/kernel/README-linux-2.6.24.7 new file mode 100644 index 0000000000..89b5f983d8 --- /dev/null +++ b/src/mod/endpoints/mod_skypiax/kernel/README-linux-2.6.24.7 @@ -0,0 +1,12 @@ +#using linux-2.6.24.7.tar.bz2 from kernel.org +wget http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.24.7.tar.bz2 +tar xjf linux-2.6.24.7.tar.bz2 +cd linux-2.6.24.7 +make mrproper +cp config-linux-2.6.24.7-skypiax08D02 .config +cp dummy.c.skypiax sound/drivers/dummy.c #optional step, halves the load +make +make install +make modules_install +make install +#enjoy diff --git a/src/mod/endpoints/mod_skypiax/kernel/dummy.c.skypiax b/src/mod/endpoints/mod_skypiax/kernel/dummy.c.skypiax new file mode 100644 index 0000000000..676f9c8eec --- /dev/null +++ b/src/mod/endpoints/mod_skypiax/kernel/dummy.c.skypiax @@ -0,0 +1,958 @@ +/* + * Dummy soundcard + * Copyright (c) by Jaroslav Kysela + * + * 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 //giova +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + + +MODULE_AUTHOR("Jaroslav Kysela "); +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 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 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 || 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("giova skypiax: %d\n", __LINE__); + 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)