- Alsa-devel - mailman.alsa-project.org

[alsa-devel] When turning up the volume, the sound dies and I'm forced to reboot...
by Sean Thayne 02 May '08

02 May '08

Hi All, I've got a via8237 audio card, and I'm using the latest alsa driver via82xx, and I got a problem. Basically if I start playing say a music file, and then turn the volume up above 75%, My sound craps out and I get a muffled, very low volume version of the song, the only way I've found to fix this is to reboot. This also happens randomly at low volume. I thought it might be a hardware issue, but I've tried it on 3 other boxes with the same card. Thanks for any input at all... -- Sean Thayne

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[alsa-devel] How to support several sound cards using same driver?
by Cliff Cai 01 May '08

01 May '08

Hi all, I have a sound card which has 8 DAC/ADC pairs,and each DAC/ADC pair can be seen as an independent sub-card.An 8-slot buffer struct is introduced to feed/get data to/from one of the 8 sub-cards.For example,if an application wants to play muic using No.7 sub-card,the driver only need to copy the pcm data from PCM layer to No.7 slot and fill the other 7 slots with zero.The driver has been implemented. The problem is how to expose the 8 sub-cards to application developers,so they can see 8 independent device nodesunder /dev?They should be /dev/dsp0,/dev/dsp1,.../dev/dsp7 and card0,card1,...card7.Also when a sub-card is opened(i.e. /dev/dsp7),the driver must know the sub-card's index ,here is 7,so it can choose a relevant slot to feed/get data. Any suggestion is appreciated! Best Regards Cliff _________________________________________________________________ 新年换新颜，快来妆扮自己的MSN给心仪的TA一个惊喜！ http://im.live.cn/emoticons/?ID=18

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[alsa-devel] How to support several cards using the same driver?
by Cliff Cai 01 May '08

01 May '08

Hi all, I have a sound card which has 8 DAC/ADC pairs,and each DAC/ADC pair can be seen as an independent sub-card. An 8-slot buffer struct is introduced to feed/get data to/from the 8 sub-cards.For example, if an application wants to play music using No.x(x,from 0 to 7) sub-card,the driver only need to copy the data from pcm layer to NO.x slot in the buffer struct and fill the other 7 slots with zero. The driver has been implemented now. The problem is how to expose the 8 sub-cards to application,So the application developer can see 8 independant device nodes under /dev.Those are /dev/dsp0,/dev/dsp1,...dev/dsp7(for oss emulation) or card0,card1...card7(for alsa).When one sub-card is opened the driver need to get the index of the sub-card,so it can feed/get data to/from the relevant slot.For example ,if an application opens /dev/dsp7, then the index "7" can be seen by the driver,and the driver know that No.7 slot will be used. Have I made myself clear?Any suggestion is appreciated! Best Regards Cliff . _________________________________________________________________ 多个邮箱同步管理，live mail客户端万人抢用中 http://get.live.cn/product/mail.html

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[PATCH] Include shuffle in 2.6.25 kernels.
by Robert Jarzmik 01 May '08

01 May '08

Signed-off-by: Robert Jarzmik <rjarzmik(a)free.fr> --- sound/soc/pxa/pxa2xx-ac97.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/sound/soc/pxa/pxa2xx-ac97.c b/sound/soc/pxa/pxa2xx-ac97.c index 86fb9c2..04156d6 100644 --- a/sound/soc/pxa/pxa2xx-ac97.c +++ b/sound/soc/pxa/pxa2xx-ac97.c @@ -28,6 +28,7 @@ #include <linux/mutex.h> #include <asm/hardware.h> #include <asm/arch/pxa-regs.h> +#include <asm/arch/pxa2xx-gpio.h> #include <asm/arch/audio.h> #include "pxa2xx-pcm.h" -- 1.5.5.3 --=-=-= Content-Type: text/x-diff Content-Disposition: inline; filename=0005-Revert-wm9713-Expose-the-PLL-configuration.patch

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[alsa-devel] Problem with aloop
by Gustavo da Silva Serra 30 Apr '08

30 Apr '08

Hi, I am developing an application that captures sound and send it through a network, just like a sound server. To test it I am using kaffeine with alsa output plugin. After some time playing continuously, or if I keep moving the position slider backward and forward, I get choppy sound. If I close and reopen the capture stream opened by my sound server, the sound is restored to good quality. Sometimes I have to reopen many times before I get a good sound. When I use kaffeine oss output plugin I don't have this issue. I don't have an audio sound card, so I don't know if this is an aloop issue. Here are some details: - RedHat EL 4 kernel 2.6.9.55-ELsmp 64bit - Alsa 1.0.16 - Xinelib 1.1.12 Please, if more details are needed I will be happy to provide them. Thanks in advance.

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[alsa-devel] [PATCH 1/4] soc - neo1973_wm8753.c cleanup checkpatch issues
by Mark Brown 30 Apr '08

30 Apr '08

From: Graeme Gregory <graeme(a)openmoko.org> Clean up a few issues with the file that checkpatch noted, no functionality changes. Signed-off-by: Graeme Gregory <graeme(a)openmoko.org> Signed-off-by: Mark Brown <broonie(a)opensource.wolfsonmicro.com> --- sound/soc/s3c24xx/neo1973_wm8753.c | 24 ++++++++++++------------ 1 files changed, 12 insertions(+), 12 deletions(-) diff --git a/sound/soc/s3c24xx/neo1973_wm8753.c b/sound/soc/s3c24xx/neo1973_wm8753.c index 962cc20..e2339b9 100644 --- a/sound/soc/s3c24xx/neo1973_wm8753.c +++ b/sound/soc/s3c24xx/neo1973_wm8753.c @@ -33,7 +33,7 @@ #include <asm/arch/regs-gpio.h> #include <asm/hardware.h> #include <asm/arch/audio.h> -#include <asm/io.h> +#include <linux/io.h> #include <asm/arch/spi-gpio.h> #include <asm/plat-s3c24xx/regs-iis.h> @@ -122,7 +122,7 @@ static int neo1973_hifi_hw_params(struct snd_pcm_substream *substream, /* set MCLK division for sample rate */ ret = cpu_dai->dai_ops.set_clkdiv(cpu_dai, S3C24XX_DIV_MCLK, - S3C2410_IISMOD_32FS ); + S3C2410_IISMOD_32FS); if (ret < 0) return ret; @@ -133,7 +133,7 @@ static int neo1973_hifi_hw_params(struct snd_pcm_substream *substream, /* set prescaler division for sample rate */ ret = cpu_dai->dai_ops.set_clkdiv(cpu_dai, S3C24XX_DIV_PRESCALER, - S3C24XX_PRESCALE(4,4)); + S3C24XX_PRESCALE(4, 4)); if (ret < 0) return ret; @@ -222,7 +222,7 @@ static struct snd_soc_ops neo1973_voice_ops = { .hw_free = neo1973_voice_hw_free, }; -static int neo1973_scenario = 0; +static int neo1973_scenario; static int neo1973_get_scenario(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) @@ -233,7 +233,7 @@ static int neo1973_get_scenario(struct snd_kcontrol *kcontrol, static int set_scenario_endpoints(struct snd_soc_codec *codec, int scenario) { - switch(neo1973_scenario) { + switch (neo1973_scenario) { case NEO_AUDIO_OFF: snd_soc_dapm_set_endpoint(codec, "Audio Out", 0); snd_soc_dapm_set_endpoint(codec, "GSM Line Out", 0); @@ -334,7 +334,7 @@ static void lm4857_write_regs(void) static int lm4857_get_reg(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { - int reg=kcontrol->private_value & 0xFF; + int reg = kcontrol->private_value & 0xFF; int shift = (kcontrol->private_value >> 8) & 0x0F; int mask = (kcontrol->private_value >> 16) & 0xFF; @@ -349,11 +349,11 @@ static int lm4857_set_reg(struct snd_kcontrol *kcontrol, int shift = (kcontrol->private_value >> 8) & 0x0F; int mask = (kcontrol->private_value >> 16) & 0xFF; - if (((lm4857_regs[reg] >> shift ) & mask) == + if (((lm4857_regs[reg] >> shift) & mask) == ucontrol->value.integer.value[0]) return 0; - lm4857_regs[reg] &= ~ (mask << shift); + lm4857_regs[reg] &= ~(mask << shift); lm4857_regs[reg] |= ucontrol->value.integer.value[0] << shift; lm4857_write_regs(); return 1; @@ -398,7 +398,7 @@ static const struct snd_soc_dapm_widget wm8753_dapm_widgets[] = { /* example machine audio_mapnections */ -static const char* audio_map[][3] = { +static const char *audio_map[][3] = { /* Connections to the lm4857 amp */ {"Audio Out", NULL, "LOUT1"}, @@ -450,7 +450,7 @@ static const char *neo_scenarios[] = { }; static const struct soc_enum neo_scenario_enum[] = { - SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(neo_scenarios),neo_scenarios), + SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(neo_scenarios), neo_scenarios), }; static const struct snd_kcontrol_new wm8753_neo1973_controls[] = { @@ -521,8 +521,8 @@ static int neo1973_wm8753_init(struct snd_soc_codec *codec) /* * BT Codec DAI */ -static struct snd_soc_cpu_dai bt_dai = -{ .name = "Bluetooth", +static struct snd_soc_cpu_dai bt_dai = { + .name = "Bluetooth", .id = 0, .type = SND_SOC_DAI_PCM, .playback = { -- 1.5.5.1

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[alsa-devel] [PATCH] asoc tlv320aic3x: set power bits correctly
by Daniel Mack 30 Apr '08

30 Apr '08

Set power bits in output stage control registers to reflect the "!muted" bits. The codec needs them set in order to operate correctly. Signed-off-by: Daniel Mack <daniel(a)caiaq.de>

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[alsa-devel] Patch for alsa-info.sh to include stderr of some tools
by Kristoffer Janke 30 Apr '08

30 Apr '08

Here is a small patch for the alsa-info.sh tool, now the stderr isnt trown away. -- Kristoffer 'spq' Janke 3c3 < SCRIPT_VERSION=0.4.41 --- > SCRIPT_VERSION=0.4.42 80c80 < aplay -l >> $FILE --- > aplay -l >> $FILE 2>&1 84c84 < arecord -l >> $FILE --- > arecord -l >> $FILE 2>&1 105c105 < amixer -c$i>> $FILE --- > amixer -c$i >> $FILE 2>&1

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[alsa-devel] [PATCH 1/6] soc - wm8753 - Clean up checkpatch warnings
by Mark Brown 30 Apr '08

30 Apr '08

Signed-off-by: Mark Brown <broonie(a)opensource.wolfsonmicro.com> --- sound/soc/codecs/wm8753.c | 34 ++++++++++++++++++---------------- 1 files changed, 18 insertions(+), 16 deletions(-) diff --git a/sound/soc/codecs/wm8753.c b/sound/soc/codecs/wm8753.c index 76a5c7b..fb41826 100644 --- a/sound/soc/codecs/wm8753.c +++ b/sound/soc/codecs/wm8753.c @@ -150,7 +150,7 @@ static int wm8753_write(struct snd_soc_codec *codec, unsigned int reg, data[0] = (reg << 1) | ((value >> 8) & 0x0001); data[1] = value & 0x00ff; - wm8753_write_reg_cache (codec, reg, value); + wm8753_write_reg_cache(codec, reg, value); if (codec->hw_write(codec->control_data, data, 2) == 2) return 0; else @@ -249,7 +249,7 @@ static int wm8753_set_dai(struct snd_kcontrol *kcontrol, struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); int mode = wm8753_read_reg_cache(codec, WM8753_IOCTL); - if (((mode &0xc) >> 2) == ucontrol->value.integer.value[0]) + if (((mode & 0xc) >> 2) == ucontrol->value.integer.value[0]) return 0; mode &= 0xfff3; @@ -342,7 +342,8 @@ static int wm8753_add_controls(struct snd_soc_codec *codec) for (i = 0; i < ARRAY_SIZE(wm8753_snd_controls); i++) { err = snd_ctl_add(codec->card, - snd_soc_cnew(&wm8753_snd_controls[i],codec, NULL)); + snd_soc_cnew(&wm8753_snd_controls[i], + codec, NULL)); if (err < 0) return err; } @@ -722,7 +723,7 @@ static void pll_factors(struct _pll_div *pll_div, unsigned int target, if ((Ndiv < 6) || (Ndiv > 12)) printk(KERN_WARNING - "WM8753 N value outwith recommended range! N = %d\n",Ndiv); + "wm8753: unsupported N = %d\n", Ndiv); pll_div->n = Ndiv; Nmod = target % source; @@ -1300,8 +1301,9 @@ static int wm8753_dapm_event(struct snd_soc_codec *codec, int event) } #define WM8753_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\ - SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 | \ - SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000) + SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\ + SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\ + SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000) #define WM8753_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ SNDRV_PCM_FMTBIT_S24_LE) @@ -1507,9 +1509,9 @@ static int wm8753_suspend(struct platform_device *pdev, pm_message_t state) struct snd_soc_codec *codec = socdev->codec; /* we only need to suspend if we are a valid card */ - if(!codec->card) + if (!codec->card) return 0; - + wm8753_dapm_event(codec, SNDRV_CTL_POWER_D3cold); return 0; } @@ -1523,7 +1525,7 @@ static int wm8753_resume(struct platform_device *pdev) u16 *cache = codec->reg_cache; /* we only need to resume if we are a valid card */ - if(!codec->card) + if (!codec->card) return 0; /* Sync reg_cache with the hardware */ @@ -1613,9 +1615,10 @@ static int wm8753_init(struct snd_soc_device *socdev) wm8753_add_widgets(codec); ret = snd_soc_register_card(socdev); if (ret < 0) { - printk(KERN_ERR "wm8753: failed to register card\n"); + printk(KERN_ERR "wm8753: failed to register card\n"); goto card_err; - } + } + return ret; card_err: @@ -1630,7 +1633,7 @@ pcm_err: around */ static struct snd_soc_device *wm8753_socdev; -#if defined (CONFIG_I2C) || defined (CONFIG_I2C_MODULE) +#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) /* * WM8753 2 wire address is determined by GPIO5 @@ -1661,7 +1664,7 @@ static int wm8753_codec_probe(struct i2c_adapter *adap, int addr, int kind) client_template.addr = addr; i2c = kmemdup(&client_template, sizeof(client_template), GFP_KERNEL); - if (i2c == NULL){ + if (!i2c) { kfree(codec); return -ENOMEM; } @@ -1749,7 +1752,7 @@ static int wm8753_probe(struct platform_device *pdev) wm8753_socdev = socdev; INIT_DELAYED_WORK(&codec->delayed_work, wm8753_work); -#if defined (CONFIG_I2C) || defined (CONFIG_I2C_MODULE) +#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) if (setup->i2c_address) { normal_i2c[0] = setup->i2c_address; codec->hw_write = (hw_write_t)i2c_master_send; @@ -1793,7 +1796,7 @@ static int wm8753_remove(struct platform_device *pdev) run_delayed_work(&codec->delayed_work); snd_soc_free_pcms(socdev); snd_soc_dapm_free(socdev); -#if defined (CONFIG_I2C) || defined (CONFIG_I2C_MODULE) +#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) i2c_del_driver(&wm8753_i2c_driver); #endif kfree(codec->private_data); @@ -1808,7 +1811,6 @@ struct snd_soc_codec_device soc_codec_dev_wm8753 = { .suspend = wm8753_suspend, .resume = wm8753_resume, }; - EXPORT_SYMBOL_GPL(soc_codec_dev_wm8753); MODULE_DESCRIPTION("ASoC WM8753 driver"); -- 1.5.5.1

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[alsa-devel] [PATCH 0/3] asoc tlv320aic3x
by Daniel Mack 30 Apr '08

30 Apr '08

Hi, Here are 3 patches regarding the tlv320aic3x driver. 1/3: revisit clock setup and drop dividers table 2/3: add support for GPIO lines 3/3: add more controls to allow cross-mixing Best regards, Daniel

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