July 2009 - Alsa-devel - mailman.alsa-project.org

[PATCH] ASoC: MPC5200: Support for buffer wrap around
by John Bonesio 29 Jul '09

29 Jul '09

The code in psc_dma_bcom_enqueue_tx() didn't account for the fact that s->runtime->control->appl_ptr can wrap around to the beginning of the buffer. This change fixes this problem. Signed-off-by: John Bonesio <bones(a)secretlab.ca> --- sound/soc/fsl/mpc5200_dma.c | 17 +++++++++++++++++ 1 files changed, 17 insertions(+), 0 deletions(-) diff --git a/sound/soc/fsl/mpc5200_dma.c b/sound/soc/fsl/mpc5200_dma.c index cfe0ea4..2551c58 100644 --- a/sound/soc/fsl/mpc5200_dma.c +++ b/sound/soc/fsl/mpc5200_dma.c @@ -70,6 +70,23 @@ static void psc_dma_bcom_enqueue_next_buffer(struct psc_dma_stream *s) static void psc_dma_bcom_enqueue_tx(struct psc_dma_stream *s) { + if (s->appl_ptr > s->runtime->control->appl_ptr) { + /* + * In this case s->runtime->control->appl_ptr has wrapped around. + * Play the data to the end of the boundary, then wrap our own + * appl_ptr back around. + */ + while (s->appl_ptr < s->runtime->boundary) { + if (bcom_queue_full(s->bcom_task)) + return; + + s->appl_ptr += s->period_size; + + psc_dma_bcom_enqueue_next_buffer(s); + } + s->appl_ptr -= s->runtime->boundary; + } + while (s->appl_ptr < s->runtime->control->appl_ptr) { if (bcom_queue_full(s->bcom_task)) -- 1.6.0.4 --=-D7TcNx246dz2g/fqLr/C--

1 0

[alsa-devel] [PATCH] ASoC: CX20442: fix issues pointed out by subsystem maintainer
by Janusz Krzysztofik 28 Jul '09

28 Jul '09

The patch fixes some checkpatch identified issues and adds a comment about line discipline interaction to my driver code, as requested by Mark on my inital submission (thank you Mark for applying my imperfect patch anyway). It also fixes MODULE_ALIAS mismatch as used in my machine driver. Signed-off-by: Janusz Krzysztofik <jkrzyszt(a)tis.icnet.pl> --- In my next attempt, I'll try to satisfy Mark's request for pushing down the line discipline code, now existing in my machine driver, to the codec driver. --- linux-2.6.31-rc3/sound/soc/codecs/cx20442.c.orig 2009-07-22 04:56:45.000000000 +0200 +++ linux-2.6.31-rc3/sound/soc/codecs/cx20442.c 2009-07-22 21:46:41.000000000 +0200 @@ -132,7 +132,7 @@ enum v253_vls { static int cx20442_pm_to_v253_vls(u8 value) { - switch(value & ~(1 << CX20442_AGC)) { + switch (value & ~(1 << CX20442_AGC)) { case 0: return V253_VLS_T; case (1 << CX20442_SPKOUT): @@ -152,7 +152,7 @@ static int cx20442_pm_to_v253_vls(u8 val } static int cx20442_pm_to_v253_vsp(u8 value) { - switch(value & ~(1 << CX20442_AGC)) { + switch (value & ~(1 << CX20442_AGC)) { case (1 << CX20442_SPKOUT): case (1 << CX20442_MIC): case (1 << CX20442_SPKOUT) | (1 << CX20442_MIC): @@ -171,6 +171,9 @@ static int cx20442_write(struct snd_soc_ if (reg >= codec->reg_cache_size) return -EINVAL; + /* hw_write and control_data pointers required for talking to the modem + * are expected to be set by the machine driver's line discipline + * initialization code */ if (!codec->hw_write || !codec->control_data) return -EIO; @@ -182,7 +185,7 @@ static int cx20442_write(struct snd_soc_ return vls; vsp = cx20442_pm_to_v253_vsp(value); - if (vsp < 0 ) + if (vsp < 0) return vsp; if ((vls == V253_VLS_T) || @@ -232,7 +235,7 @@ static int cx20442_codec_probe(struct pl struct snd_soc_codec *codec; int ret; - if(!cx20442_codec) { + if (!cx20442_codec) { dev_err(&pdev->dev, "cx20442 not yet discovered\n"); return -ENODEV; } @@ -310,13 +313,13 @@ static int cx20442_register(struct cx204 ret = snd_soc_register_codec(codec); if (ret != 0) { - //dev_err(&dev->dev, "Failed to register codec: %d\n", ret); + dev_err(&codec->dev, "Failed to register codec: %d\n", ret); goto err; } ret = snd_soc_register_dai(&cx20442_dai); if (ret != 0) { - //dev_err(&dev->dev, "Failed to register DAI: %d\n", ret); + dev_err(&codec->dev, "Failed to register DAI: %d\n", ret); goto err_codec; } @@ -392,4 +395,4 @@ module_exit(cx20442_exit); MODULE_DESCRIPTION("ASoC CX20442-11 voice modem codec driver"); MODULE_AUTHOR("Janusz Krzysztofik"); MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:cx20442-codec"); +MODULE_ALIAS("platform:cx20442");

2 1

[alsa-devel] [RFC] [PATCH] ASoC: CX20442: push down machine independent line discipline bits
by Janusz Krzysztofik 28 Jul '09

28 Jul '09

This patch adds machine independent line discipline code, prevoiusly exsiting inside my Amstrad Delta ASoC machine dirver, to the Conexant CX20442 codec driver. The code can be used as a standalone line discipline, or as a set of codec specific functions called from machine's line discipline callbacks. Anyway, the line discipline itself must be registered by a machine driver. Suggested by ASoC manintainer Mark Brown <broonie(a)opensource.wolfsonmicro.com> (Hardly understood, imperfectly implemented and) Signed-off-by: Janusz Krzysztofik <jkrzyszt(a)tis.icnet.pl> --- Mark, does it follow your idea closely enough? --- linux-2.6.31-rc3/sound/soc/codecs/cx20442.h.orig 2009-07-22 04:56:45.000000000 +0200 +++ linux-2.6.31-rc3/sound/soc/codecs/cx20442.h 2009-07-28 21:23:17.000000000 +0200 @@ -15,5 +15,6 @@ extern struct snd_soc_dai cx20442_dai; extern struct snd_soc_codec_device cx20442_codec_dev; +extern struct tty_ldisc_ops v253_ops; #endif --- linux-2.6.31-rc3/sound/soc/codecs/cx20442.c.orig 2009-07-28 20:26:18.000000000 +0200 +++ linux-2.6.31-rc3/sound/soc/codecs/cx20442.c 2009-07-28 21:19:43.000000000 +0200 @@ -13,6 +13,8 @@ * option) any later version. */ +#include <linux/tty.h> + #include <sound/core.h> #include <sound/initval.h> #include <sound/soc-dapm.h> @@ -172,8 +174,7 @@ static int cx20442_write(struct snd_soc_ return -EINVAL; /* hw_write and control_data pointers required for talking to the modem - * are expected to be set by the machine driver's line discipline - * initialization code */ + * are expected to be set by a line discipline initialization code */ if (!codec->hw_write || !codec->control_data) return -EIO; @@ -208,6 +209,111 @@ static int cx20442_write(struct snd_soc_ return 0; } + +/* Moved up here as line discipline referres it during initialization */ +static struct snd_soc_codec *cx20442_codec; + + +/* + * Line discpline related code + * + * Any of the callback functions below can be used in two ways: + * 1) registerd by a machine driver as one of line discipline operations, + * 2) called from inside a machine specific line discipline callback function + * in case when extra machine specific code must be run as well. + */ + +/* Modem init: echo off, digital speaker off, quiet off, voice mode */ +static const char *v253_init = "ate0m0q0+fclass=8\r"; + +/* Line discipline .open() */ +static int v253_open(struct tty_struct *tty) +{ + struct snd_soc_codec *codec = cx20442_codec; + int ret, len = strlen(v253_init); + + /* Doesn't make sense without write callback */ + if (!tty->ops->write) + return -EINVAL; + + /* Pass the codec structure address for use by other ldisc callbacks */ + tty->disc_data = codec; + + if (tty->ops->write(tty, v253_init, len) != len) { + ret = -EIO; + goto err; + } + /* Actual setup will be performed after the modem responds. */ + return 0; +err: + tty->disc_data = NULL; + return ret; +} + +/* Line discipline .close() */ +static void v253_close(struct tty_struct *tty) +{ + struct snd_soc_codec *codec = tty->disc_data; + + tty->disc_data = NULL; + + if (!codec) + return; + + /* Prevent the codec driver from further accessing the modem */ + codec->hw_write = NULL; + codec->control_data = NULL; + codec->pop_time = 0; +} + +/* Line discipline .hangup() */ +static int v253_hangup(struct tty_struct *tty) +{ + v253_close(tty); + return 0; +} + +/* Line discipline .receive_buf() */ +static void v253_receive(struct tty_struct *tty, + const unsigned char *cp, char *fp, int count) +{ + struct snd_soc_codec *codec = tty->disc_data; + + if (!codec) + return; + + if (!codec->control_data) { + /* First modem response, complete setup procedure */ + + /* Set up codec driver access to modem controls */ + codec->control_data = tty; + codec->hw_write = (hw_write_t)tty->ops->write; + codec->pop_time = 1; + } +} + +/* Line discipline .write_wakeup() */ +static void v253_wakeup(struct tty_struct *tty) +{ +} + +static struct tty_ldisc_ops v253_ops = { + .magic = TTY_LDISC_MAGIC, + .name = "cx20442", + .owner = THIS_MODULE, + .open = v253_open, + .close = v253_close, + .hangup = v253_hangup, + .receive_buf = v253_receive, + .write_wakeup = v253_wakeup, +}; +EXPORT_SYMBOL_GPL(v253_ops); + + +/* + * Codec DAI + */ + struct snd_soc_dai cx20442_dai = { .name = "CX20442", .playback = { @@ -227,8 +333,6 @@ struct snd_soc_dai cx20442_dai = { }; EXPORT_SYMBOL_GPL(cx20442_dai); -static struct snd_soc_codec *cx20442_codec; - static int cx20442_codec_probe(struct platform_device *pdev) { struct snd_soc_device *socdev = platform_get_drvdata(pdev);

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[alsa-devel] [PATCH 0/2]blackfin TDM dai and blackfin-ad1938 machine driver
by Barry Song 28 Jul '09

28 Jul '09

Hi Mark, The following two patches are the 2nd version for the "new support for ad1938 codec" patch sequence. Since you have applied the codec driver patch([PATCH 1/3] new ad1938 codec driver based on asoc), here I only send the DAI and Board driver patches again according to your feedback. Patch 1: blackfin I2S(TDM mode) CPU DAI driver Patch 2: board driver to connect bf5xx with ad1938 Detailed description about every patch and changes is included in the corresponding patch. Thanks Barry

2 9

[alsa-devel] [PATCH 1/2] blackfin I2S(TDM mode) CPU DAI driver
by Barry Song 28 Jul '09

28 Jul '09

The I2S DAI driver for blackfin SPORT, but works in TDM mode. I2S is not a special case of TDM with only left and right two slots for SPORT interface. I2S coordinates with TDM in SPORT, but not a part of TDM. TDM require different hardware configuration with I2S, not only different slot number. One is "Stereo Serial Operation" mode of SPORT, the other one is "Multichannel Operation" mode. They are incompatible at the same time. Hardware and DMA description and data transfer flow are much different for I2S and TDM. Merging them as a whole will be very ugly and difficult to maintain. So we don't define a new DAI type, but give two DAI instances for standard I2S and TDM, both in I2S-family DAI type. The TDM instance still uses the I2S-family DAI type. Signed-off-by: Barry Song <21cnbao(a)gmail.com> --- sound/soc/blackfin/Kconfig | 15 ++- sound/soc/blackfin/Makefile | 4 + sound/soc/blackfin/bf5xx-tdm-pcm.c | 330 ++++++++++++++++++++++++++++++++++ sound/soc/blackfin/bf5xx-tdm-pcm.h | 21 +++ sound/soc/blackfin/bf5xx-tdm.c | 343 ++++++++++++++++++++++++++++++++++++ sound/soc/blackfin/bf5xx-tdm.h | 14 ++ 6 files changed, 726 insertions(+), 1 deletions(-) create mode 100644 sound/soc/blackfin/bf5xx-tdm-pcm.c create mode 100644 sound/soc/blackfin/bf5xx-tdm-pcm.h create mode 100644 sound/soc/blackfin/bf5xx-tdm.c create mode 100644 sound/soc/blackfin/bf5xx-tdm.h diff --git a/sound/soc/blackfin/Kconfig b/sound/soc/blackfin/Kconfig index 811596f..2ab6d2f 100644 --- a/sound/soc/blackfin/Kconfig +++ b/sound/soc/blackfin/Kconfig @@ -7,6 +7,15 @@ config SND_BF5XX_I2S mode (supports single stereo In/Out). You will also need to select the audio interfaces to support below. +config SND_BF5XX_TDM + tristate "SoC I2S(TDM mode) Audio for the ADI BF5xx chip" + depends on (BLACKFIN && SND_SOC) + help + Say Y or M if you want to add support for codecs attached to + the Blackfin SPORT (synchronous serial ports) interface in TDM + mode. + You will also need to select the audio interfaces to support below. + config SND_BF5XX_SOC_SSM2602 tristate "SoC SSM2602 Audio support for BF52x ezkit" depends on SND_BF5XX_I2S @@ -69,6 +78,10 @@ config SND_BF5XX_SOC_I2S tristate select SND_BF5XX_SOC_SPORT +config SND_BF5XX_SOC_TDM + tristate + select SND_BF5XX_SOC_SPORT + config SND_BF5XX_SOC_AC97 tristate select AC97_BUS @@ -85,7 +98,7 @@ config SND_BF5XX_SOC_AD1980 config SND_BF5XX_SPORT_NUM int "Set a SPORT for Sound chip" - depends on (SND_BF5XX_I2S || SND_BF5XX_AC97) + depends on (SND_BF5XX_I2S || SND_BF5XX_AC97 || SND_BF5XX_TDM) range 0 3 if BF54x range 0 1 if !BF54x default 0 diff --git a/sound/soc/blackfin/Makefile b/sound/soc/blackfin/Makefile index 97bb37a..f861926 100644 --- a/sound/soc/blackfin/Makefile +++ b/sound/soc/blackfin/Makefile @@ -1,15 +1,19 @@ # Blackfin Platform Support snd-bf5xx-ac97-objs := bf5xx-ac97-pcm.o snd-bf5xx-i2s-objs := bf5xx-i2s-pcm.o +snd-bf5xx-tdm-objs := bf5xx-tdm-pcm.o snd-soc-bf5xx-sport-objs := bf5xx-sport.o snd-soc-bf5xx-ac97-objs := bf5xx-ac97.o snd-soc-bf5xx-i2s-objs := bf5xx-i2s.o +snd-soc-bf5xx-tdm-objs := bf5xx-tdm.o obj-$(CONFIG_SND_BF5XX_AC97) += snd-bf5xx-ac97.o obj-$(CONFIG_SND_BF5XX_I2S) += snd-bf5xx-i2s.o +obj-$(CONFIG_SND_BF5XX_TDM) += snd-bf5xx-tdm.o obj-$(CONFIG_SND_BF5XX_SOC_SPORT) += snd-soc-bf5xx-sport.o obj-$(CONFIG_SND_BF5XX_SOC_AC97) += snd-soc-bf5xx-ac97.o obj-$(CONFIG_SND_BF5XX_SOC_I2S) += snd-soc-bf5xx-i2s.o +obj-$(CONFIG_SND_BF5XX_SOC_TDM) += snd-soc-bf5xx-tdm.o # Blackfin Machine Support snd-ad1980-objs := bf5xx-ad1980.o diff --git a/sound/soc/blackfin/bf5xx-tdm-pcm.c b/sound/soc/blackfin/bf5xx-tdm-pcm.c new file mode 100644 index 0000000..af7fa8d --- /dev/null +++ b/sound/soc/blackfin/bf5xx-tdm-pcm.c @@ -0,0 +1,330 @@ +/* + * File: sound/soc/blackfin/bf5xx-tdm-pcm.c + * Author: Barry Song <Barry.Song(a)analog.com> + * + * Created: Tue June 06 2009 + * Description: DMA driver for tdm codec + * + * Modified: + * Copyright 2009 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * 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, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/slab.h> +#include <linux/dma-mapping.h> + +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> + +#include <asm/dma.h> + +#include "bf5xx-tdm-pcm.h" +#include "bf5xx-tdm.h" +#include "bf5xx-sport.h" + +#define PCM_BUFFER_MAX 0x10000 +#define FRAGMENT_SIZE_MIN (4*1024) +#define FRAGMENTS_MIN 2 +#define FRAGMENTS_MAX 32 + +static void bf5xx_dma_irq(void *data) +{ + struct snd_pcm_substream *pcm = data; + snd_pcm_period_elapsed(pcm); +} + +static const struct snd_pcm_hardware bf5xx_pcm_hardware = { + .info = (SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER | + SNDRV_PCM_INFO_RESUME), + .formats = SNDRV_PCM_FMTBIT_S32_LE, + .rates = SNDRV_PCM_RATE_48000, + .channels_min = 2, + .channels_max = 8, + .buffer_bytes_max = PCM_BUFFER_MAX, + .period_bytes_min = FRAGMENT_SIZE_MIN, + .period_bytes_max = PCM_BUFFER_MAX/2, + .periods_min = FRAGMENTS_MIN, + .periods_max = FRAGMENTS_MAX, +}; + +static int bf5xx_pcm_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + size_t size = bf5xx_pcm_hardware.buffer_bytes_max; + snd_pcm_lib_malloc_pages(substream, size * 4); + + return 0; +} + +static int bf5xx_pcm_hw_free(struct snd_pcm_substream *substream) +{ + snd_pcm_lib_free_pages(substream); + + return 0; +} + +static int bf5xx_pcm_prepare(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct sport_device *sport = runtime->private_data; + int fragsize_bytes = frames_to_bytes(runtime, runtime->period_size); + + fragsize_bytes /= runtime->channels; + /* inflate the fragsize to match the dma width of SPORT */ + fragsize_bytes *= 8; + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + sport_set_tx_callback(sport, bf5xx_dma_irq, substream); + sport_config_tx_dma(sport, runtime->dma_area, + runtime->periods, fragsize_bytes); + } else { + sport_set_rx_callback(sport, bf5xx_dma_irq, substream); + sport_config_rx_dma(sport, runtime->dma_area, + runtime->periods, fragsize_bytes); + } + + return 0; +} + +static int bf5xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct sport_device *sport = runtime->private_data; + int ret = 0; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + sport_tx_start(sport); + else + sport_rx_start(sport); + break; + case SNDRV_PCM_TRIGGER_STOP: + case SNDRV_PCM_TRIGGER_SUSPEND: + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + sport_tx_stop(sport); + else + sport_rx_stop(sport); + break; + default: + ret = -EINVAL; + } + + return ret; +} + +static snd_pcm_uframes_t bf5xx_pcm_pointer(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct sport_device *sport = runtime->private_data; + unsigned int diff; + snd_pcm_uframes_t frames; + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + diff = sport_curr_offset_tx(sport); + frames = diff / (8*4); /* 32 bytes per frame */ + } else { + diff = sport_curr_offset_rx(sport); + frames = diff / (8*4); + } + return frames; +} + +static int bf5xx_pcm_open(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + int ret = 0; + + snd_soc_set_runtime_hwparams(substream, &bf5xx_pcm_hardware); + + ret = snd_pcm_hw_constraint_integer(runtime, + SNDRV_PCM_HW_PARAM_PERIODS); + if (ret < 0) + goto out; + + if (sport_handle != NULL) + runtime->private_data = sport_handle; + else { + pr_err("sport_handle is NULL\n"); + ret = -ENODEV; + } +out: + return ret; +} + +static int bf5xx_pcm_copy(struct snd_pcm_substream *substream, int channel, + snd_pcm_uframes_t pos, void *buf, snd_pcm_uframes_t count) +{ + unsigned int *src; + unsigned int *dst; + int i; + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + src = buf; + dst = (unsigned int *)substream->runtime->dma_area; + + dst += pos * 8; + while (count--) { + for (i = 0; i < substream->runtime->channels; i++) + *(dst + i) = *src++; + dst += 8; + } + } else { + src = (unsigned int *)substream->runtime->dma_area; + dst = buf; + + src += pos * 8; + while (count--) { + for (i = 0; i < substream->runtime->channels; i++) + *dst++ = *(src+i); + src += 8; + } + } + + return 0; +} + +static int bf5xx_pcm_silence(struct snd_pcm_substream *substream, + int channel, snd_pcm_uframes_t pos, snd_pcm_uframes_t count) +{ + unsigned char *buf = substream->runtime->dma_area; + buf += pos * 8 * 4; + memset(buf, '\0', count * 8 * 4); + + return 0; +} + + +struct snd_pcm_ops bf5xx_pcm_tdm_ops = { + .open = bf5xx_pcm_open, + .ioctl = snd_pcm_lib_ioctl, + .hw_params = bf5xx_pcm_hw_params, + .hw_free = bf5xx_pcm_hw_free, + .prepare = bf5xx_pcm_prepare, + .trigger = bf5xx_pcm_trigger, + .pointer = bf5xx_pcm_pointer, + .copy = bf5xx_pcm_copy, + .silence = bf5xx_pcm_silence, +}; + +static int bf5xx_pcm_preallocate_dma_buffer(struct snd_pcm *pcm, int stream) +{ + struct snd_pcm_substream *substream = pcm->streams[stream].substream; + struct snd_dma_buffer *buf = &substream->dma_buffer; + size_t size = bf5xx_pcm_hardware.buffer_bytes_max; + + buf->dev.type = SNDRV_DMA_TYPE_DEV; + buf->dev.dev = pcm->card->dev; + buf->private_data = NULL; + buf->area = dma_alloc_coherent(pcm->card->dev, size * 4, + &buf->addr, GFP_KERNEL); + if (!buf->area) { + pr_err("Failed to allocate dma memory \ + Please increase uncached DMA memory region\n"); + return -ENOMEM; + } + buf->bytes = size; + + if (stream == SNDRV_PCM_STREAM_PLAYBACK) + sport_handle->tx_buf = buf->area; + else + sport_handle->rx_buf = buf->area; + + return 0; +} + +static void bf5xx_pcm_free_dma_buffers(struct snd_pcm *pcm) +{ + struct snd_pcm_substream *substream; + struct snd_dma_buffer *buf; + int stream; + + for (stream = 0; stream < 2; stream++) { + substream = pcm->streams[stream].substream; + if (!substream) + continue; + + buf = &substream->dma_buffer; + if (!buf->area) + continue; + dma_free_coherent(NULL, buf->bytes, buf->area, 0); + buf->area = NULL; + } + if (sport_handle) + sport_done(sport_handle); +} + +static u64 bf5xx_pcm_dmamask = DMA_32BIT_MASK; + +static int bf5xx_pcm_tdm_new(struct snd_card *card, struct snd_soc_dai *dai, + struct snd_pcm *pcm) +{ + int ret = 0; + + if (!card->dev->dma_mask) + card->dev->dma_mask = &bf5xx_pcm_dmamask; + if (!card->dev->coherent_dma_mask) + card->dev->coherent_dma_mask = DMA_32BIT_MASK; + + if (dai->playback.channels_min) { + ret = bf5xx_pcm_preallocate_dma_buffer(pcm, + SNDRV_PCM_STREAM_PLAYBACK); + if (ret) + goto out; + } + + if (dai->capture.channels_min) { + ret = bf5xx_pcm_preallocate_dma_buffer(pcm, + SNDRV_PCM_STREAM_CAPTURE); + if (ret) + goto out; + } +out: + return ret; +} + +struct snd_soc_platform bf5xx_tdm_soc_platform = { + .name = "bf5xx-audio", + .pcm_ops = &bf5xx_pcm_tdm_ops, + .pcm_new = bf5xx_pcm_tdm_new, + .pcm_free = bf5xx_pcm_free_dma_buffers, +}; +EXPORT_SYMBOL_GPL(bf5xx_tdm_soc_platform); + +static int __init bfin_pcm_tdm_init(void) +{ + return snd_soc_register_platform(&bf5xx_tdm_soc_platform); +} +module_init(bfin_pcm_tdm_init); + +static void __exit bfin_pcm_tdm_exit(void) +{ + snd_soc_unregister_platform(&bf5xx_tdm_soc_platform); +} +module_exit(bfin_pcm_tdm_exit); + +MODULE_AUTHOR("Barry Song"); +MODULE_DESCRIPTION("ADI Blackfin TDM PCM DMA module"); +MODULE_LICENSE("GPL"); diff --git a/sound/soc/blackfin/bf5xx-tdm-pcm.h b/sound/soc/blackfin/bf5xx-tdm-pcm.h new file mode 100644 index 0000000..9e8473d --- /dev/null +++ b/sound/soc/blackfin/bf5xx-tdm-pcm.h @@ -0,0 +1,21 @@ +/* + * linux/sound/arm/bf5xx-tdm-pcm.h -- ALSA PCM interface for the Blackfin + * + * Copyright 2009 Analog Device Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef _BF5XX_TDM_PCM_H +#define _BF5XX_TDM_PCM_H + +struct bf5xx_pcm_dma_params { + char *name; /* stream identifier */ +}; + +/* platform data */ +extern struct snd_soc_platform bf5xx_tdm_soc_platform; + +#endif diff --git a/sound/soc/blackfin/bf5xx-tdm.c b/sound/soc/blackfin/bf5xx-tdm.c new file mode 100644 index 0000000..3096bad --- /dev/null +++ b/sound/soc/blackfin/bf5xx-tdm.c @@ -0,0 +1,343 @@ +/* + * File: sound/soc/blackfin/bf5xx-tdm.c + * Author: Barry Song <Barry.Song(a)analog.com> + * + * Created: Thurs June 04 2009 + * Description: Blackfin I2S(TDM) CPU DAI driver + * Even though TDM mode can be as part of I2S DAI, but there + * are so much difference in configuration and data flow, + * it's very ugly to integrate I2S and TDM into a module + * + * Modified: + * Copyright 2009 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * 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, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/device.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/initval.h> +#include <sound/soc.h> + +#include <asm/irq.h> +#include <asm/portmux.h> +#include <linux/mutex.h> +#include <linux/gpio.h> + +#include "bf5xx-sport.h" +#include "bf5xx-tdm.h" + +struct bf5xx_tdm_port { + u16 tcr1; + u16 rcr1; + u16 tcr2; + u16 rcr2; + int configured; +}; + +static struct bf5xx_tdm_port bf5xx_tdm; +static int sport_num = CONFIG_SND_BF5XX_SPORT_NUM; + +static struct sport_param sport_params[2] = { + { + .dma_rx_chan = CH_SPORT0_RX, + .dma_tx_chan = CH_SPORT0_TX, + .err_irq = IRQ_SPORT0_ERROR, + .regs = (struct sport_register *)SPORT0_TCR1, + }, + { + .dma_rx_chan = CH_SPORT1_RX, + .dma_tx_chan = CH_SPORT1_TX, + .err_irq = IRQ_SPORT1_ERROR, + .regs = (struct sport_register *)SPORT1_TCR1, + } +}; + +/* + * Setting the TFS pin selector for SPORT 0 based on whether the selected + * port id F or G. If the port is F then no conflict should exist for the + * TFS. When Port G is selected and EMAC then there is a conflict between + * the PHY interrupt line and TFS. Current settings prevent the conflict + * by ignoring the TFS pin when Port G is selected. This allows both + * ssm2602 using Port G and EMAC concurrently. + */ +#ifdef CONFIG_BF527_SPORT0_PORTF +#define LOCAL_SPORT0_TFS (P_SPORT0_TFS) +#else +#define LOCAL_SPORT0_TFS (0) +#endif + +static u16 sport_req[][7] = { {P_SPORT0_DTPRI, P_SPORT0_TSCLK, P_SPORT0_RFS, + P_SPORT0_DRPRI, P_SPORT0_RSCLK, LOCAL_SPORT0_TFS, 0}, + {P_SPORT1_DTPRI, P_SPORT1_TSCLK, P_SPORT1_RFS, P_SPORT1_DRPRI, + P_SPORT1_RSCLK, P_SPORT1_TFS, 0} }; + +static int bf5xx_tdm_set_dai_fmt(struct snd_soc_dai *cpu_dai, + unsigned int fmt) +{ + int ret = 0; + + /* interface format:support TDM,slave mode */ + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_DSP_A: + break; + default: + printk(KERN_ERR "%s: Unknown DAI format type\n", __func__); + ret = -EINVAL; + break; + } + + switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { + case SND_SOC_DAIFMT_CBM_CFM: + break; + case SND_SOC_DAIFMT_CBS_CFS: + case SND_SOC_DAIFMT_CBM_CFS: + case SND_SOC_DAIFMT_CBS_CFM: + ret = -EINVAL; + break; + default: + printk(KERN_ERR "%s: Unknown DAI master type\n", __func__); + ret = -EINVAL; + break; + } + + return ret; +} + +static int bf5xx_tdm_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + int ret = 0; + + bf5xx_tdm.tcr2 &= ~0x1f; + bf5xx_tdm.rcr2 &= ~0x1f; + switch (params_format(params)) { + case SNDRV_PCM_FORMAT_S32_LE: + bf5xx_tdm.tcr2 |= 31; + bf5xx_tdm.rcr2 |= 31; + sport_handle->wdsize = 4; + break; + /* at present, we only support 32bit transfer */ + default: + pr_err("not supported PCM format yet\n"); + return -EINVAL; + break; + } + + if (!bf5xx_tdm.configured) { + /* + * TX and RX are not independent,they are enabled at the + * same time, even if only one side is running. So, we + * need to configure both of them at the time when the first + * stream is opened. + * + * CPU DAI:slave mode. + */ + ret = sport_config_rx(sport_handle, bf5xx_tdm.rcr1, + bf5xx_tdm.rcr2, 0, 0); + if (ret) { + pr_err("SPORT is busy!\n"); + return -EBUSY; + } + + ret = sport_config_tx(sport_handle, bf5xx_tdm.tcr1, + bf5xx_tdm.tcr2, 0, 0); + if (ret) { + pr_err("SPORT is busy!\n"); + return -EBUSY; + } + + bf5xx_tdm.configured = 1; + } + + return 0; +} + +static void bf5xx_tdm_shutdown(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + /* No active stream, SPORT is allowed to be configured again. */ + if (!dai->active) + bf5xx_tdm.configured = 0; +} + +#ifdef CONFIG_PM +static int bf5xx_tdm_suspend(struct snd_soc_dai *dai) +{ + struct sport_device *sport = + (struct sport_device *)dai->private_data; + + if (!dai->active) + return 0; + if (dai->capture.active) + sport_rx_stop(sport); + if (dai->playback.active) + sport_tx_stop(sport); + return 0; +} + +static int bf5xx_tdm_resume(struct snd_soc_dai *dai) +{ + int ret; + struct sport_device *sport = + (struct sport_device *)dai->private_data; + + if (!dai->active) + return 0; + + ret = sport_set_multichannel(sport, 8, 0xFF, 1); + if (ret) { + pr_err("SPORT is busy!\n"); + ret = -EBUSY; + } + + ret = sport_config_rx(sport, IRFS, 0x1F, 0, 0); + if (ret) { + pr_err("SPORT is busy!\n"); + ret = -EBUSY; + } + + ret = sport_config_tx(sport, ITFS, 0x1F, 0, 0); + if (ret) { + pr_err("SPORT is busy!\n"); + ret = -EBUSY; + } + + return 0; +} + +#else +#define bf5xx_tdm_suspend NULL +#define bf5xx_tdm_resume NULL +#endif + +static struct snd_soc_dai_ops bf5xx_tdm_dai_ops = { + .hw_params = bf5xx_tdm_hw_params, + .set_fmt = bf5xx_tdm_set_dai_fmt, + .shutdown = bf5xx_tdm_shutdown, +}; + +struct snd_soc_dai bf5xx_tdm_dai = { + .name = "bf5xx-tdm", + .id = 0, + .suspend = bf5xx_tdm_suspend, + .resume = bf5xx_tdm_resume, + .playback = { + .channels_min = 2, + .channels_max = 8, + .rates = SNDRV_PCM_RATE_48000, + .formats = SNDRV_PCM_FMTBIT_S32_LE,}, + .capture = { + .channels_min = 2, + .channels_max = 8, + .rates = SNDRV_PCM_RATE_48000, + .formats = SNDRV_PCM_FMTBIT_S32_LE,}, + .ops = &bf5xx_tdm_dai_ops, +}; +EXPORT_SYMBOL_GPL(bf5xx_tdm_dai); + +static int __devinit bfin_tdm_probe(struct platform_device *pdev) +{ + int ret = 0; + + if (peripheral_request_list(&sport_req[sport_num][0], "soc-audio")) { + pr_err("Requesting Peripherals failed\n"); + return -EFAULT; + } + + /* request DMA for SPORT */ + sport_handle = sport_init(&sport_params[sport_num], 4, \ + 8 * sizeof(u32), NULL); + if (!sport_handle) { + peripheral_free_list(&sport_req[sport_num][0]); + return -ENODEV; + } + + /* SPORT works in TDM mode */ + ret = sport_set_multichannel(sport_handle, 8, 0xFF, 1); + if (ret) { + pr_err("SPORT is busy!\n"); + ret = -EBUSY; + goto sport_config_err; + } + + ret = sport_config_rx(sport_handle, IRFS, 0x1F, 0, 0); + if (ret) { + pr_err("SPORT is busy!\n"); + ret = -EBUSY; + goto sport_config_err; + } + + ret = sport_config_tx(sport_handle, ITFS, 0x1F, 0, 0); + if (ret) { + pr_err("SPORT is busy!\n"); + ret = -EBUSY; + goto sport_config_err; + } + + ret = snd_soc_register_dai(&bf5xx_tdm_dai); + if (ret) { + pr_err("Failed to register DAI: %d\n", ret); + goto sport_config_err; + } + return 0; + +sport_config_err: + peripheral_free_list(&sport_req[sport_num][0]); + return ret; +} + +static int __devexit bfin_tdm_remove(struct platform_device *pdev) +{ + peripheral_free_list(&sport_req[sport_num][0]); + snd_soc_unregister_dai(&bf5xx_tdm_dai); + + return 0; +} + +static struct platform_driver bfin_tdm_driver = { + .probe = bfin_tdm_probe, + .remove = __devexit_p(bfin_tdm_remove), + .driver = { + .name = "bfin-tdm", + .owner = THIS_MODULE, + }, +}; + +static int __init bfin_tdm_init(void) +{ + return platform_driver_register(&bfin_tdm_driver); +} +module_init(bfin_tdm_init); + +static void __exit bfin_tdm_exit(void) +{ + platform_driver_unregister(&bfin_tdm_driver); +} +module_exit(bfin_tdm_exit); + +/* Module information */ +MODULE_AUTHOR("Barry Song"); +MODULE_DESCRIPTION("TDM driver for ADI Blackfin"); +MODULE_LICENSE("GPL"); + diff --git a/sound/soc/blackfin/bf5xx-tdm.h b/sound/soc/blackfin/bf5xx-tdm.h new file mode 100644 index 0000000..e5157cd --- /dev/null +++ b/sound/soc/blackfin/bf5xx-tdm.h @@ -0,0 +1,14 @@ +/* + * linux/sound/arm/bf5xx-i2s.h + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef _BF5XX_TDM_H +#define _BF5XX_TDM_H + +extern struct snd_soc_dai bf5xx_tdm_dai; + +#endif -- 1.5.6.3

2 1

[alsa-devel] [RFC] [PATCH 1/3] ASoC: Add support for Conexant CX20442-11 voice modem codec
by Janusz Krzysztofik 28 Jul '09

28 Jul '09

This patch adds support for Conexant CX20442-11 voice modem codec, suitable for use by the ASoC board driver for Amstrad E3 (Delta) videophone. Related sound card driver will follow. Created and tested against linux-2.6.31-rc3. Applies and works with linux-omap-2.6 commit 7c5cb7862d32cb344be7831d466535d5255e35ac as well. Signed-off-by: Janusz Krzysztofik <jkrzyszt(a)tis.icnet.pl> --- This codec is an optional part of the Conexant SmartV three chip modem design. As such, documentation for its proprietary digital audio interface is not available. However, on Amstrad Delta board, thanks to Mark Underwood who created an initial, omap-alsa based sound driver a few years ago[1], the codec has been discovered to be accessible not only from the modem side, but also over the OMAP McBSP based CPU DAI. Thus, the driver can be used by any sound card that can access the codec DAI directly. The DAI configuration parameters (sample rate and format, number of channels) has been selected out empirically for best user experience. The codec analogue interface consists of two pairs of analogue I/O pins: speakerphone interface or telephone handset/headset interface. Furthermore, it seams to provide two operation modes for speakerphone I/O: standard and advanced, with automatic gain control and echo cancelation. Even if the codec control interface is unknown and not available, all those interfaces and modes can be selected over the modem chip using V.253 commands. The driver is able to issue necessary commands over a suitable hw_write function if provided by a sound card driver. Otherwise, the codec can be controlled over the modem from userspace while inactive. Even if nothig is known about the codec internal power management capabilities, DAPM widgets has been used to model the codec audio map. Automatically performed powering up/down of those virtual widgets results in corresponding V.253 commands being issued. Some driver features/oddities may be board specific, but I have no way to verify that with any board other than Amstrad Delta. [1] http://www.earth.li/pipermail/e3-hacking/2006-April/000481.html --- linux-2.6.31-rc1/sound/soc/codecs/Kconfig.orig 2009-07-04 16:40:00.000000000 +0200 +++ linux-2.6.31-rc1/sound/soc/codecs/Kconfig 2009-07-22 01:01:08.000000000 +0200 @@ -17,6 +17,7 @@ config SND_SOC_ALL_CODECS select SND_SOC_AK4104 if SPI_MASTER select SND_SOC_AK4535 if I2C select SND_SOC_CS4270 if I2C + select SND_SOC_CX20442 select SND_SOC_PCM3008 select SND_SOC_SPDIF select SND_SOC_SSM2602 if I2C @@ -86,6 +87,9 @@ config SND_SOC_CS4270_VD33_ERRATA bool depends on SND_SOC_CS4270 +config SND_SOC_CX20442 + tristate + config SND_SOC_L3 tristate --- linux-2.6.31-rc1/sound/soc/codecs/Makefile.orig 2009-07-04 16:40:00.000000000 +0200 +++ linux-2.6.31-rc1/sound/soc/codecs/Makefile 2009-07-22 01:01:08.000000000 +0200 @@ -4,6 +4,7 @@ snd-soc-ad73311-objs := ad73311.o snd-soc-ak4104-objs := ak4104.o snd-soc-ak4535-objs := ak4535.o snd-soc-cs4270-objs := cs4270.o +snd-soc-cx20442-objs := cx20442.o snd-soc-l3-objs := l3.o snd-soc-pcm3008-objs := pcm3008.o snd-soc-spdif-objs := spdif_transciever.o @@ -41,6 +42,7 @@ obj-$(CONFIG_SND_SOC_AD73311) += snd-soc obj-$(CONFIG_SND_SOC_AK4104) += snd-soc-ak4104.o obj-$(CONFIG_SND_SOC_AK4535) += snd-soc-ak4535.o obj-$(CONFIG_SND_SOC_CS4270) += snd-soc-cs4270.o +obj-$(CONFIG_SND_SOC_CX20442) += snd-soc-cx20442.o obj-$(CONFIG_SND_SOC_L3) += snd-soc-l3.o obj-$(CONFIG_SND_SOC_PCM3008) += snd-soc-pcm3008.o obj-$(CONFIG_SND_SOC_SPDIF) += snd-soc-spdif.o --- /dev/null 2009-06-24 10:33:03.437003511 +0200 +++ linux-2.6.31-rc1/sound/soc/codecs/cx20442.h 2009-07-22 01:01:08.000000000 +0200 @@ -0,0 +1,19 @@ +/* + * cx20442.h -- audio driver for CX20442 + * + * Copyright 2009 Janusz Krzysztofik <jkrzyszt(a)tis.icnet.pl> + * + * 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. + * + */ + +#ifndef _CX20442_CODEC_H +#define _CX20442_CODEC_H + +extern struct snd_soc_dai cx20442_dai; +extern struct snd_soc_codec_device cx20442_codec_dev; + +#endif --- /dev/null 2009-06-24 10:33:03.437003511 +0200 +++ linux-2.6.31-rc1/sound/soc/codecs/cx20442.c 2009-07-22 01:01:08.000000000 +0200 @@ -0,0 +1,395 @@ +/* + * cx20442.c -- CX20442 ALSA Soc Audio driver + * + * Copyright 2009 Janusz Krzysztofik <jkrzyszt(a)tis.icnet.pl> + * + * Initially based on sound/soc/codecs/wm8400.c + * Copyright 2008, 2009 Wolfson Microelectronics PLC. + * Author: Mark Brown <broonie(a)opensource.wolfsonmicro.com> + * + * 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. + */ + +#include <sound/core.h> +#include <sound/initval.h> +#include <sound/soc-dapm.h> + +#include "cx20442.h" + + +struct cx20442_priv { + struct snd_soc_codec codec; + u8 reg_cache[1]; +}; + +#define CX20442_PM 0x0 + +#define CX20442_TELIN 0 +#define CX20442_TELOUT 1 +#define CX20442_MIC 2 +#define CX20442_SPKOUT 3 +#define CX20442_AGC 4 + +static const struct snd_soc_dapm_widget cx20442_dapm_widgets[] = { + SND_SOC_DAPM_OUTPUT("TELOUT"), + SND_SOC_DAPM_OUTPUT("SPKOUT"), + SND_SOC_DAPM_OUTPUT("AGCOUT"), + + SND_SOC_DAPM_MIXER("SPKOUT Mixer", SND_SOC_NOPM, 0, 0, NULL, 0), + + SND_SOC_DAPM_PGA("TELOUT Amp", CX20442_PM, CX20442_TELOUT, 0, NULL, 0), + SND_SOC_DAPM_PGA("SPKOUT Amp", CX20442_PM, CX20442_SPKOUT, 0, NULL, 0), + SND_SOC_DAPM_PGA("SPKOUT AGC", CX20442_PM, CX20442_AGC, 0, NULL, 0), + + SND_SOC_DAPM_DAC("DAC", "Playback", SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_ADC("ADC", "Capture", SND_SOC_NOPM, 0, 0), + + SND_SOC_DAPM_MIXER("Input Mixer", SND_SOC_NOPM, 0, 0, NULL, 0), + + SND_SOC_DAPM_MICBIAS("TELIN Bias", CX20442_PM, CX20442_TELIN, 0), + SND_SOC_DAPM_MICBIAS("MIC Bias", CX20442_PM, CX20442_MIC, 0), + + SND_SOC_DAPM_PGA("MIC AGC", CX20442_PM, CX20442_AGC, 0, NULL, 0), + + SND_SOC_DAPM_INPUT("TELIN"), + SND_SOC_DAPM_INPUT("MIC"), + SND_SOC_DAPM_INPUT("AGCIN"), +}; + +static const struct snd_soc_dapm_route cx20442_audio_map[] = { + {"TELOUT", NULL, "TELOUT Amp"}, + + {"SPKOUT", NULL, "SPKOUT Mixer"}, + {"SPKOUT Mixer", NULL, "SPKOUT Amp"}, + + {"TELOUT Amp", NULL, "DAC"}, + {"SPKOUT Amp", NULL, "DAC"}, + + {"SPKOUT Mixer", NULL, "SPKOUT AGC"}, + {"SPKOUT AGC", NULL, "AGCIN"}, + + {"AGCOUT", NULL, "MIC AGC"}, + {"MIC AGC", NULL, "MIC"}, + + {"MIC Bias", NULL, "MIC"}, + {"Input Mixer", NULL, "MIC Bias"}, + + {"TELIN Bias", NULL, "TELIN"}, + {"Input Mixer", NULL, "TELIN Bias"}, + + {"ADC", NULL, "Input Mixer"}, +}; + +static int cx20442_add_widgets(struct snd_soc_codec *codec) +{ + snd_soc_dapm_new_controls(codec, cx20442_dapm_widgets, + ARRAY_SIZE(cx20442_dapm_widgets)); + + snd_soc_dapm_add_routes(codec, cx20442_audio_map, + ARRAY_SIZE(cx20442_audio_map)); + + snd_soc_dapm_new_widgets(codec); + return 0; +} + +static unsigned int cx20442_read_reg_cache(struct snd_soc_codec *codec, + unsigned int reg) +{ + u8 *reg_cache = codec->reg_cache; + + if (reg >= codec->reg_cache_size) + return -EINVAL; + + return reg_cache[reg]; +} + +enum v253_vls { + V253_VLS_NONE = 0, + V253_VLS_T, + V253_VLS_L, + V253_VLS_LT, + V253_VLS_S, + V253_VLS_ST, + V253_VLS_M, + V253_VLS_MST, + V253_VLS_S1, + V253_VLS_S1T, + V253_VLS_MS1T, + V253_VLS_M1, + V253_VLS_M1ST, + V253_VLS_M1S1T, + V253_VLS_H, + V253_VLS_HT, + V253_VLS_MS, + V253_VLS_MS1, + V253_VLS_M1S, + V253_VLS_M1S1, + V253_VLS_TEST, +}; + +static int cx20442_pm_to_v253_vls(u8 value) +{ + switch(value & ~(1 << CX20442_AGC)) { + case 0: + return V253_VLS_T; + case (1 << CX20442_SPKOUT): + return V253_VLS_S1; + case (1 << CX20442_MIC): + return V253_VLS_M1; + case (1 << CX20442_SPKOUT) | (1 << CX20442_MIC): + return V253_VLS_M1S1; + case (1 << CX20442_TELOUT): + case (1 << CX20442_TELIN): + case (1 << CX20442_TELOUT) | (1 << CX20442_TELIN): + return V253_VLS_L; + case (1 << CX20442_TELOUT) | (1 << CX20442_MIC): + return V253_VLS_NONE; + } + return -EINVAL; +} +static int cx20442_pm_to_v253_vsp(u8 value) +{ + switch(value & ~(1 << CX20442_AGC)) { + case (1 << CX20442_SPKOUT): + case (1 << CX20442_MIC): + case (1 << CX20442_SPKOUT) | (1 << CX20442_MIC): + return (bool)(value & (1 << CX20442_AGC)); + } + return (value & (1 << CX20442_AGC)) ? -EINVAL : 0; +} + +static int cx20442_write(struct snd_soc_codec *codec, unsigned int reg, + unsigned int value) +{ + u8 *reg_cache = codec->reg_cache; + int vls, vsp, old, len; + char buf[18]; + + if (reg >= codec->reg_cache_size) + return -EINVAL; + + if (!codec->hw_write || !codec->control_data) + return -EIO; + + old = reg_cache[reg]; + reg_cache[reg] = value; + + vls = cx20442_pm_to_v253_vls(value); + if (vls < 0) + return vls; + + vsp = cx20442_pm_to_v253_vsp(value); + if (vsp < 0 ) + return vsp; + + if ((vls == V253_VLS_T) || + (vls == cx20442_pm_to_v253_vls(old))) { + if (vsp == cx20442_pm_to_v253_vsp(old)) + return 0; + len = snprintf(buf, ARRAY_SIZE(buf), "at+vsp=%d\r", vsp); + } else if (vsp == cx20442_pm_to_v253_vsp(old)) + len = snprintf(buf, ARRAY_SIZE(buf), "at+vls=%d\r", vls); + else + len = snprintf(buf, ARRAY_SIZE(buf), + "at+vls=%d;+vsp=%d\r", vls, vsp); + + if (unlikely(len > (ARRAY_SIZE(buf) - 1))) + return -ENOMEM; + + if (codec->hw_write(codec->control_data, buf, len) != len) + return -EIO; + + return 0; +} + +struct snd_soc_dai cx20442_dai = { + .name = "CX20442", + .playback = { + .stream_name = "Playback", + .channels_min = 1, + .channels_max = 1, + .rates = SNDRV_PCM_RATE_8000, + .formats = SNDRV_PCM_FMTBIT_S16_LE, + }, + .capture = { + .stream_name = "Capture", + .channels_min = 1, + .channels_max = 1, + .rates = SNDRV_PCM_RATE_8000, + .formats = SNDRV_PCM_FMTBIT_S16_LE, + }, +}; +EXPORT_SYMBOL_GPL(cx20442_dai); + +static struct snd_soc_codec *cx20442_codec; + +static int cx20442_codec_probe(struct platform_device *pdev) +{ + struct snd_soc_device *socdev = platform_get_drvdata(pdev); + struct snd_soc_codec *codec; + int ret; + + if(!cx20442_codec) { + dev_err(&pdev->dev, "cx20442 not yet discovered\n"); + return -ENODEV; + } + codec = cx20442_codec; + + socdev->card->codec = codec; + + /* register pcms */ + ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1); + if (ret < 0) { + dev_err(&pdev->dev, "failed to create pcms\n"); + goto pcm_err; + } + + cx20442_add_widgets(codec); + + ret = snd_soc_init_card(socdev); + if (ret < 0) { + dev_err(&pdev->dev, "failed to register card\n"); + goto card_err; + } + + return ret; + +card_err: + snd_soc_free_pcms(socdev); + snd_soc_dapm_free(socdev); +pcm_err: + return ret; +} + +/* power down chip */ +static int cx20442_codec_remove(struct platform_device *pdev) +{ + struct snd_soc_device *socdev = platform_get_drvdata(pdev); + + snd_soc_free_pcms(socdev); + snd_soc_dapm_free(socdev); + + return 0; +} + +struct snd_soc_codec_device cx20442_codec_dev = { + .probe = cx20442_codec_probe, + .remove = cx20442_codec_remove, +}; +EXPORT_SYMBOL_GPL(cx20442_codec_dev); + +static int cx20442_register(struct cx20442_priv *cx20442) +{ + struct snd_soc_codec *codec = &cx20442->codec; + int ret; + + mutex_init(&codec->mutex); + INIT_LIST_HEAD(&codec->dapm_widgets); + INIT_LIST_HEAD(&codec->dapm_paths); + + codec->name = "CX20442"; + codec->owner = THIS_MODULE; + codec->private_data = cx20442; + + codec->dai = &cx20442_dai; + codec->num_dai = 1; + + codec->reg_cache = &cx20442->reg_cache; + codec->reg_cache_size = ARRAY_SIZE(cx20442->reg_cache); + codec->read = cx20442_read_reg_cache; + codec->write = cx20442_write; + + codec->bias_level = SND_SOC_BIAS_OFF; + + cx20442_dai.dev = codec->dev; + + cx20442_codec = codec; + + ret = snd_soc_register_codec(codec); + if (ret != 0) { + //dev_err(&dev->dev, "Failed to register codec: %d\n", ret); + goto err; + } + + ret = snd_soc_register_dai(&cx20442_dai); + if (ret != 0) { + //dev_err(&dev->dev, "Failed to register DAI: %d\n", ret); + goto err_codec; + } + + return 0; + +err_codec: + snd_soc_unregister_codec(codec); +err: + cx20442_codec = NULL; + kfree(cx20442); + return ret; +} + +static void cx20442_unregister(struct cx20442_priv *cx20442) +{ + snd_soc_unregister_dai(&cx20442_dai); + snd_soc_unregister_codec(&cx20442->codec); + + cx20442_codec = NULL; + kfree(cx20442); +} + +static int cx20442_platform_probe(struct platform_device *pdev) +{ + struct cx20442_priv *cx20442; + struct snd_soc_codec *codec; + + cx20442 = kzalloc(sizeof(struct cx20442_priv), GFP_KERNEL); + if (cx20442 == NULL) + return -ENOMEM; + + codec = &cx20442->codec; + + codec->control_data = NULL; + codec->hw_write = NULL; + codec->pop_time = 0; + + codec->dev = &pdev->dev; + platform_set_drvdata(pdev, cx20442); + + return cx20442_register(cx20442); +} + +static int __exit cx20442_platform_remove(struct platform_device *pdev) +{ + struct cx20442_priv *cx20442 = platform_get_drvdata(pdev); + + cx20442_unregister(cx20442); + return 0; +} + +static struct platform_driver cx20442_platform_driver = { + .driver = { + .name = "cx20442", + .owner = THIS_MODULE, + }, + .probe = cx20442_platform_probe, + .remove = __exit_p(cx20442_platform_remove), +}; + +static int __init cx20442_init(void) +{ + return platform_driver_register(&cx20442_platform_driver); +} +module_init(cx20442_init); + +static void __exit cx20442_exit(void) +{ + platform_driver_unregister(&cx20442_platform_driver); +} +module_exit(cx20442_exit); + +MODULE_DESCRIPTION("ASoC CX20442-11 voice modem codec driver"); +MODULE_AUTHOR("Janusz Krzysztofik"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:cx20442-codec");

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[alsa-devel] Using Alsa for AD1981b on 9263
by Shilpa Kedar Walvekar 28 Jul '09

28 Jul '09

Hi, I am using AT91SAM9263 evaluation kit with AD1981b codec. I want to use alsa to play and record audio on this kit. I tried to install the alsa library, alsa-oss, alsa-util. Alsa driver was part of kernel (2.6.27). I did, ./configure && make && make install for library, oss and util. Now when I try to do aplay -l following happens: aplay: device_list:223: no soundcards found... Don't know what is happening. Am I missing any step? What else should be done? Please help me asap. Regards, --Shilpa.

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Re: [alsa-devel] get two mono channel from stereo line
by Clemens Ladisch 28 Jul '09

28 Jul '09

arif setiawan wrote: > It worked now. thank you. Apparently we changed something in your > plugin sample. Sorry, that was my error; I wrote a wrong number for the right dshare plugin. > The ipc_key for dshare in both left and right is supposed to be same > right?, also for dsnoop. Yes; the two processes that are to share the device use this to communicate with each other. Best regards, Clemens

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Re: [alsa-devel] HDA Intel IDT 92HD71B7X - HP Pavilion DV7-1299EF - Subwoofer not Working
by Wael Nasreddine (a.k.a eMxyzptlk) 27 Jul '09

27 Jul '09

I still got no solution for this problem, guys please HELP!! I removed completely Windows, and I can't even enjoy music nor a movie!! On Thu, Jun 11, 2009 at 8:31 PM, Wael Nasreddine (a.k.a eMxyzptlk) < mla(a)nasreddine.com> wrote: > Yes it does mute the speakers once I plug in headphones.. > > > On Thu, Jun 11, 2009 at 8:12 PM, Gustavo Vieira <gustavo(a)sagui.org> wrote: > >> Em Dom, 2009-06-07 às 16:57 +0200, Wael Nasreddine (a.k.a eMxyzptlk) >> escreveu: >> > Last night I bought myself a new laptop, the HP Pavilion DV7-1299EF. >> > >> >> Sorry for hijacking your thread, but does this laptop mute the speaker >> if you plug in the headphones? >> >> I'm experiencing problems with jack sensing in a Pavilion DV4 with the >> same codec and what to know if this problem is general to the codec or >> specific to my model. >> >> Abraços, >> Gustavo >> >> >> > > > -- > Wael Nasreddine > > Blog : http://wael.nasreddine.com > E-mail : wael.nasreddine(a)gmail.com > gTalk : wael.nasreddine(a)gmail.com > Tel : +33.6.32.94.70.13 > Skype : eMxyzptlk > Twitter : @eMxyzptlk > > Sabayon Linux Chief Development Officer - http://www.sabayonlinux.org > > PGP: 1024D/C8DD18A2 06F6 1622 4BC8 4CEB D724 DE12 5565 3945 C8DD 18A2 > > .: An infinite number of monkeys typing into GNU emacs, > would never make a good program. (L. Torvalds 1995) :. > > -- Wael Nasreddine Blog : http://wael.nasreddine.com E-mail : wael.nasreddine(a)gmail.com gTalk : wael.nasreddine(a)gmail.com Tel : +33.6.32.94.70.13 Skype : eMxyzptlk Twitter : @eMxyzptlk Sabayon Linux Chief Development Officer - http://www.sabayonlinux.org PGP: 1024D/C8DD18A2 06F6 1622 4BC8 4CEB D724 DE12 5565 3945 C8DD 18A2 .: An infinite number of monkeys typing into GNU emacs, would never make a good program. (L. Torvalds 1995) :.

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[alsa-devel] my driver can't reproduce continuously
by Kuninori Morimoto 27 Jul '09

27 Jul '09

Hi Now I'm creating sound driver. But can't reproduce continuously. So, I would like to ask. I use module of SH to play sound. Player is aplay, sound data is wav file. Q1) When I play sound, aplay said underrun!!! (at least 0.000 ms long) underrun!!! (at least 0.000 ms long) underrun!!! (at least 0.000 ms long) underrun!!! (at least 0.000 ms long) I checked source of aplay, but can not understand about snd_pcm_status_get_state. why snd_pcm_status_get_state return SND_PCM_STATE_XRUN ? What should my driver do (or where should I check) ? Q2) The reason that it can not reproduce continuously seems soc-core.c :: soc_pcm_trigger timing. Call timing of soc_pcm_trigger is slow. What should my driver do to make call timing more fast ? Best regards -- Kuninori Morimoto

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