forked from Minki/linux
776 lines
22 KiB
C
776 lines
22 KiB
C
/*****************************************************************************
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*
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* Copyright (C) 2008 Cedric Bregardis <cedric.bregardis@free.fr> and
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* Jean-Christian Hassler <jhassler@free.fr>
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*
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* This file is part of the Audiowerk2 ALSA driver
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*
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* The Audiowerk2 ALSA driver is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2.
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*
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* The Audiowerk2 ALSA driver is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with the Audiowerk2 ALSA driver; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
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* USA.
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*
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*****************************************************************************/
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#include <linux/init.h>
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#include <linux/pci.h>
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#include <linux/dma-mapping.h>
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#include <linux/slab.h>
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#include <linux/interrupt.h>
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#include <linux/delay.h>
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#include <linux/io.h>
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#include <linux/module.h>
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#include <sound/core.h>
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#include <sound/initval.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include <sound/control.h>
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#include "saa7146.h"
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#include "aw2-saa7146.h"
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MODULE_AUTHOR("Cedric Bregardis <cedric.bregardis@free.fr>, "
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"Jean-Christian Hassler <jhassler@free.fr>");
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MODULE_DESCRIPTION("Emagic Audiowerk 2 sound driver");
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MODULE_LICENSE("GPL");
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/*********************************
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* DEFINES
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********************************/
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#define CTL_ROUTE_ANALOG 0
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#define CTL_ROUTE_DIGITAL 1
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/*********************************
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* TYPEDEFS
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********************************/
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/* hardware definition */
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static struct snd_pcm_hardware snd_aw2_playback_hw = {
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.info = (SNDRV_PCM_INFO_MMAP |
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SNDRV_PCM_INFO_INTERLEAVED |
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SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_MMAP_VALID),
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.formats = SNDRV_PCM_FMTBIT_S16_LE,
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.rates = SNDRV_PCM_RATE_44100,
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.rate_min = 44100,
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.rate_max = 44100,
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.channels_min = 2,
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.channels_max = 4,
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.buffer_bytes_max = 32768,
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.period_bytes_min = 4096,
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.period_bytes_max = 32768,
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.periods_min = 1,
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.periods_max = 1024,
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};
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static struct snd_pcm_hardware snd_aw2_capture_hw = {
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.info = (SNDRV_PCM_INFO_MMAP |
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SNDRV_PCM_INFO_INTERLEAVED |
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SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_MMAP_VALID),
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.formats = SNDRV_PCM_FMTBIT_S16_LE,
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.rates = SNDRV_PCM_RATE_44100,
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.rate_min = 44100,
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.rate_max = 44100,
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.channels_min = 2,
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.channels_max = 2,
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.buffer_bytes_max = 32768,
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.period_bytes_min = 4096,
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.period_bytes_max = 32768,
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.periods_min = 1,
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.periods_max = 1024,
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};
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struct aw2_pcm_device {
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struct snd_pcm *pcm;
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unsigned int stream_number;
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struct aw2 *chip;
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};
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struct aw2 {
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struct snd_aw2_saa7146 saa7146;
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struct pci_dev *pci;
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int irq;
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spinlock_t reg_lock;
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struct mutex mtx;
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unsigned long iobase_phys;
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void __iomem *iobase_virt;
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struct snd_card *card;
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struct aw2_pcm_device device_playback[NB_STREAM_PLAYBACK];
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struct aw2_pcm_device device_capture[NB_STREAM_CAPTURE];
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};
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/*********************************
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* FUNCTION DECLARATIONS
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********************************/
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static int snd_aw2_dev_free(struct snd_device *device);
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static int __devinit snd_aw2_create(struct snd_card *card,
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struct pci_dev *pci, struct aw2 **rchip);
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static int __devinit snd_aw2_probe(struct pci_dev *pci,
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const struct pci_device_id *pci_id);
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static void __devexit snd_aw2_remove(struct pci_dev *pci);
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static int snd_aw2_pcm_playback_open(struct snd_pcm_substream *substream);
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static int snd_aw2_pcm_playback_close(struct snd_pcm_substream *substream);
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static int snd_aw2_pcm_capture_open(struct snd_pcm_substream *substream);
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static int snd_aw2_pcm_capture_close(struct snd_pcm_substream *substream);
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static int snd_aw2_pcm_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *hw_params);
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static int snd_aw2_pcm_hw_free(struct snd_pcm_substream *substream);
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static int snd_aw2_pcm_prepare_playback(struct snd_pcm_substream *substream);
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static int snd_aw2_pcm_prepare_capture(struct snd_pcm_substream *substream);
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static int snd_aw2_pcm_trigger_playback(struct snd_pcm_substream *substream,
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int cmd);
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static int snd_aw2_pcm_trigger_capture(struct snd_pcm_substream *substream,
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int cmd);
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static snd_pcm_uframes_t snd_aw2_pcm_pointer_playback(struct snd_pcm_substream
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*substream);
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static snd_pcm_uframes_t snd_aw2_pcm_pointer_capture(struct snd_pcm_substream
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*substream);
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static int __devinit snd_aw2_new_pcm(struct aw2 *chip);
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static int snd_aw2_control_switch_capture_info(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_info *uinfo);
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static int snd_aw2_control_switch_capture_get(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value
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*ucontrol);
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static int snd_aw2_control_switch_capture_put(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value
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*ucontrol);
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/*********************************
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* VARIABLES
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********************************/
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static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
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static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
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static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
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module_param_array(index, int, NULL, 0444);
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MODULE_PARM_DESC(index, "Index value for Audiowerk2 soundcard.");
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module_param_array(id, charp, NULL, 0444);
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MODULE_PARM_DESC(id, "ID string for the Audiowerk2 soundcard.");
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module_param_array(enable, bool, NULL, 0444);
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MODULE_PARM_DESC(enable, "Enable Audiowerk2 soundcard.");
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static DEFINE_PCI_DEVICE_TABLE(snd_aw2_ids) = {
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{PCI_VENDOR_ID_PHILIPS, PCI_DEVICE_ID_PHILIPS_SAA7146, 0, 0,
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0, 0, 0},
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{0}
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};
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MODULE_DEVICE_TABLE(pci, snd_aw2_ids);
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/* pci_driver definition */
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static struct pci_driver aw2_driver = {
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.name = KBUILD_MODNAME,
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.id_table = snd_aw2_ids,
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.probe = snd_aw2_probe,
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.remove = __devexit_p(snd_aw2_remove),
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};
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module_pci_driver(aw2_driver);
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/* operators for playback PCM alsa interface */
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static struct snd_pcm_ops snd_aw2_playback_ops = {
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.open = snd_aw2_pcm_playback_open,
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.close = snd_aw2_pcm_playback_close,
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.ioctl = snd_pcm_lib_ioctl,
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.hw_params = snd_aw2_pcm_hw_params,
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.hw_free = snd_aw2_pcm_hw_free,
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.prepare = snd_aw2_pcm_prepare_playback,
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.trigger = snd_aw2_pcm_trigger_playback,
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.pointer = snd_aw2_pcm_pointer_playback,
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};
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/* operators for capture PCM alsa interface */
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static struct snd_pcm_ops snd_aw2_capture_ops = {
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.open = snd_aw2_pcm_capture_open,
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.close = snd_aw2_pcm_capture_close,
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.ioctl = snd_pcm_lib_ioctl,
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.hw_params = snd_aw2_pcm_hw_params,
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.hw_free = snd_aw2_pcm_hw_free,
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.prepare = snd_aw2_pcm_prepare_capture,
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.trigger = snd_aw2_pcm_trigger_capture,
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.pointer = snd_aw2_pcm_pointer_capture,
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};
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static struct snd_kcontrol_new aw2_control __devinitdata = {
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.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
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.name = "PCM Capture Route",
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.index = 0,
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.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
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.private_value = 0xffff,
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.info = snd_aw2_control_switch_capture_info,
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.get = snd_aw2_control_switch_capture_get,
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.put = snd_aw2_control_switch_capture_put
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};
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/*********************************
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* FUNCTION IMPLEMENTATIONS
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********************************/
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/* component-destructor */
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static int snd_aw2_dev_free(struct snd_device *device)
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{
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struct aw2 *chip = device->device_data;
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/* Free hardware */
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snd_aw2_saa7146_free(&chip->saa7146);
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/* release the irq */
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if (chip->irq >= 0)
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free_irq(chip->irq, (void *)chip);
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/* release the i/o ports & memory */
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if (chip->iobase_virt)
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iounmap(chip->iobase_virt);
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pci_release_regions(chip->pci);
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/* disable the PCI entry */
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pci_disable_device(chip->pci);
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/* release the data */
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kfree(chip);
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return 0;
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}
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/* chip-specific constructor */
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static int __devinit snd_aw2_create(struct snd_card *card,
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struct pci_dev *pci, struct aw2 **rchip)
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{
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struct aw2 *chip;
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int err;
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static struct snd_device_ops ops = {
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.dev_free = snd_aw2_dev_free,
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};
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*rchip = NULL;
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/* initialize the PCI entry */
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err = pci_enable_device(pci);
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if (err < 0)
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return err;
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pci_set_master(pci);
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/* check PCI availability (32bit DMA) */
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if ((pci_set_dma_mask(pci, DMA_BIT_MASK(32)) < 0) ||
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(pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(32)) < 0)) {
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printk(KERN_ERR "aw2: Impossible to set 32bit mask DMA\n");
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pci_disable_device(pci);
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return -ENXIO;
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}
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chip = kzalloc(sizeof(*chip), GFP_KERNEL);
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if (chip == NULL) {
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pci_disable_device(pci);
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return -ENOMEM;
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}
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/* initialize the stuff */
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chip->card = card;
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chip->pci = pci;
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chip->irq = -1;
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/* (1) PCI resource allocation */
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err = pci_request_regions(pci, "Audiowerk2");
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if (err < 0) {
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pci_disable_device(pci);
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kfree(chip);
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return err;
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}
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chip->iobase_phys = pci_resource_start(pci, 0);
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chip->iobase_virt =
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ioremap_nocache(chip->iobase_phys,
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pci_resource_len(pci, 0));
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if (chip->iobase_virt == NULL) {
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printk(KERN_ERR "aw2: unable to remap memory region");
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pci_release_regions(pci);
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pci_disable_device(pci);
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kfree(chip);
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return -ENOMEM;
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}
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/* (2) initialization of the chip hardware */
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snd_aw2_saa7146_setup(&chip->saa7146, chip->iobase_virt);
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if (request_irq(pci->irq, snd_aw2_saa7146_interrupt,
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IRQF_SHARED, KBUILD_MODNAME, chip)) {
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printk(KERN_ERR "aw2: Cannot grab irq %d\n", pci->irq);
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iounmap(chip->iobase_virt);
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pci_release_regions(chip->pci);
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pci_disable_device(chip->pci);
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kfree(chip);
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return -EBUSY;
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}
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chip->irq = pci->irq;
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err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
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if (err < 0) {
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free_irq(chip->irq, (void *)chip);
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iounmap(chip->iobase_virt);
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pci_release_regions(chip->pci);
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pci_disable_device(chip->pci);
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kfree(chip);
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return err;
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}
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snd_card_set_dev(card, &pci->dev);
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*rchip = chip;
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printk(KERN_INFO
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"Audiowerk 2 sound card (saa7146 chipset) detected and "
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"managed\n");
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return 0;
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}
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/* constructor */
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static int __devinit snd_aw2_probe(struct pci_dev *pci,
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const struct pci_device_id *pci_id)
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{
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static int dev;
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struct snd_card *card;
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struct aw2 *chip;
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int err;
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/* (1) Continue if device is not enabled, else inc dev */
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if (dev >= SNDRV_CARDS)
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return -ENODEV;
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if (!enable[dev]) {
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dev++;
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return -ENOENT;
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}
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/* (2) Create card instance */
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err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card);
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if (err < 0)
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return err;
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/* (3) Create main component */
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err = snd_aw2_create(card, pci, &chip);
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if (err < 0) {
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snd_card_free(card);
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return err;
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}
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/* initialize mutex */
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mutex_init(&chip->mtx);
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/* init spinlock */
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spin_lock_init(&chip->reg_lock);
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/* (4) Define driver ID and name string */
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strcpy(card->driver, "aw2");
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strcpy(card->shortname, "Audiowerk2");
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sprintf(card->longname, "%s with SAA7146 irq %i",
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card->shortname, chip->irq);
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/* (5) Create other components */
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snd_aw2_new_pcm(chip);
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/* (6) Register card instance */
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err = snd_card_register(card);
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if (err < 0) {
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snd_card_free(card);
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return err;
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}
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/* (7) Set PCI driver data */
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pci_set_drvdata(pci, card);
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dev++;
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return 0;
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}
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/* destructor */
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static void __devexit snd_aw2_remove(struct pci_dev *pci)
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{
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snd_card_free(pci_get_drvdata(pci));
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pci_set_drvdata(pci, NULL);
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}
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/* open callback */
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static int snd_aw2_pcm_playback_open(struct snd_pcm_substream *substream)
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{
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struct snd_pcm_runtime *runtime = substream->runtime;
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snd_printdd(KERN_DEBUG "aw2: Playback_open\n");
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runtime->hw = snd_aw2_playback_hw;
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return 0;
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}
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/* close callback */
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static int snd_aw2_pcm_playback_close(struct snd_pcm_substream *substream)
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{
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return 0;
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}
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static int snd_aw2_pcm_capture_open(struct snd_pcm_substream *substream)
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{
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struct snd_pcm_runtime *runtime = substream->runtime;
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snd_printdd(KERN_DEBUG "aw2: Capture_open\n");
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runtime->hw = snd_aw2_capture_hw;
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return 0;
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}
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/* close callback */
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static int snd_aw2_pcm_capture_close(struct snd_pcm_substream *substream)
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{
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/* TODO: something to do ? */
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return 0;
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}
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/* hw_params callback */
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static int snd_aw2_pcm_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *hw_params)
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{
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return snd_pcm_lib_malloc_pages(substream,
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params_buffer_bytes(hw_params));
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}
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/* hw_free callback */
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static int snd_aw2_pcm_hw_free(struct snd_pcm_substream *substream)
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{
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return snd_pcm_lib_free_pages(substream);
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}
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/* prepare callback for playback */
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static int snd_aw2_pcm_prepare_playback(struct snd_pcm_substream *substream)
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{
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struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream);
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struct aw2 *chip = pcm_device->chip;
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struct snd_pcm_runtime *runtime = substream->runtime;
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unsigned long period_size, buffer_size;
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mutex_lock(&chip->mtx);
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period_size = snd_pcm_lib_period_bytes(substream);
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buffer_size = snd_pcm_lib_buffer_bytes(substream);
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snd_aw2_saa7146_pcm_init_playback(&chip->saa7146,
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pcm_device->stream_number,
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runtime->dma_addr, period_size,
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buffer_size);
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/* Define Interrupt callback */
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snd_aw2_saa7146_define_it_playback_callback(pcm_device->stream_number,
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(snd_aw2_saa7146_it_cb)
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snd_pcm_period_elapsed,
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(void *)substream);
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mutex_unlock(&chip->mtx);
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return 0;
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}
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/* prepare callback for capture */
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static int snd_aw2_pcm_prepare_capture(struct snd_pcm_substream *substream)
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{
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struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream);
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struct aw2 *chip = pcm_device->chip;
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struct snd_pcm_runtime *runtime = substream->runtime;
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unsigned long period_size, buffer_size;
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mutex_lock(&chip->mtx);
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period_size = snd_pcm_lib_period_bytes(substream);
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buffer_size = snd_pcm_lib_buffer_bytes(substream);
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snd_aw2_saa7146_pcm_init_capture(&chip->saa7146,
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pcm_device->stream_number,
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runtime->dma_addr, period_size,
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buffer_size);
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/* Define Interrupt callback */
|
|
snd_aw2_saa7146_define_it_capture_callback(pcm_device->stream_number,
|
|
(snd_aw2_saa7146_it_cb)
|
|
snd_pcm_period_elapsed,
|
|
(void *)substream);
|
|
|
|
mutex_unlock(&chip->mtx);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* playback trigger callback */
|
|
static int snd_aw2_pcm_trigger_playback(struct snd_pcm_substream *substream,
|
|
int cmd)
|
|
{
|
|
int status = 0;
|
|
struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream);
|
|
struct aw2 *chip = pcm_device->chip;
|
|
spin_lock(&chip->reg_lock);
|
|
switch (cmd) {
|
|
case SNDRV_PCM_TRIGGER_START:
|
|
snd_aw2_saa7146_pcm_trigger_start_playback(&chip->saa7146,
|
|
pcm_device->
|
|
stream_number);
|
|
break;
|
|
case SNDRV_PCM_TRIGGER_STOP:
|
|
snd_aw2_saa7146_pcm_trigger_stop_playback(&chip->saa7146,
|
|
pcm_device->
|
|
stream_number);
|
|
break;
|
|
default:
|
|
status = -EINVAL;
|
|
}
|
|
spin_unlock(&chip->reg_lock);
|
|
return status;
|
|
}
|
|
|
|
/* capture trigger callback */
|
|
static int snd_aw2_pcm_trigger_capture(struct snd_pcm_substream *substream,
|
|
int cmd)
|
|
{
|
|
int status = 0;
|
|
struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream);
|
|
struct aw2 *chip = pcm_device->chip;
|
|
spin_lock(&chip->reg_lock);
|
|
switch (cmd) {
|
|
case SNDRV_PCM_TRIGGER_START:
|
|
snd_aw2_saa7146_pcm_trigger_start_capture(&chip->saa7146,
|
|
pcm_device->
|
|
stream_number);
|
|
break;
|
|
case SNDRV_PCM_TRIGGER_STOP:
|
|
snd_aw2_saa7146_pcm_trigger_stop_capture(&chip->saa7146,
|
|
pcm_device->
|
|
stream_number);
|
|
break;
|
|
default:
|
|
status = -EINVAL;
|
|
}
|
|
spin_unlock(&chip->reg_lock);
|
|
return status;
|
|
}
|
|
|
|
/* playback pointer callback */
|
|
static snd_pcm_uframes_t snd_aw2_pcm_pointer_playback(struct snd_pcm_substream
|
|
*substream)
|
|
{
|
|
struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream);
|
|
struct aw2 *chip = pcm_device->chip;
|
|
unsigned int current_ptr;
|
|
|
|
/* get the current hardware pointer */
|
|
struct snd_pcm_runtime *runtime = substream->runtime;
|
|
current_ptr =
|
|
snd_aw2_saa7146_get_hw_ptr_playback(&chip->saa7146,
|
|
pcm_device->stream_number,
|
|
runtime->dma_area,
|
|
runtime->buffer_size);
|
|
|
|
return bytes_to_frames(substream->runtime, current_ptr);
|
|
}
|
|
|
|
/* capture pointer callback */
|
|
static snd_pcm_uframes_t snd_aw2_pcm_pointer_capture(struct snd_pcm_substream
|
|
*substream)
|
|
{
|
|
struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream);
|
|
struct aw2 *chip = pcm_device->chip;
|
|
unsigned int current_ptr;
|
|
|
|
/* get the current hardware pointer */
|
|
struct snd_pcm_runtime *runtime = substream->runtime;
|
|
current_ptr =
|
|
snd_aw2_saa7146_get_hw_ptr_capture(&chip->saa7146,
|
|
pcm_device->stream_number,
|
|
runtime->dma_area,
|
|
runtime->buffer_size);
|
|
|
|
return bytes_to_frames(substream->runtime, current_ptr);
|
|
}
|
|
|
|
/* create a pcm device */
|
|
static int __devinit snd_aw2_new_pcm(struct aw2 *chip)
|
|
{
|
|
struct snd_pcm *pcm_playback_ana;
|
|
struct snd_pcm *pcm_playback_num;
|
|
struct snd_pcm *pcm_capture;
|
|
struct aw2_pcm_device *pcm_device;
|
|
int err = 0;
|
|
|
|
/* Create new Alsa PCM device */
|
|
|
|
err = snd_pcm_new(chip->card, "Audiowerk2 analog playback", 0, 1, 0,
|
|
&pcm_playback_ana);
|
|
if (err < 0) {
|
|
printk(KERN_ERR "aw2: snd_pcm_new error (0x%X)\n", err);
|
|
return err;
|
|
}
|
|
|
|
/* Creation ok */
|
|
pcm_device = &chip->device_playback[NUM_STREAM_PLAYBACK_ANA];
|
|
|
|
/* Set PCM device name */
|
|
strcpy(pcm_playback_ana->name, "Analog playback");
|
|
/* Associate private data to PCM device */
|
|
pcm_playback_ana->private_data = pcm_device;
|
|
/* set operators of PCM device */
|
|
snd_pcm_set_ops(pcm_playback_ana, SNDRV_PCM_STREAM_PLAYBACK,
|
|
&snd_aw2_playback_ops);
|
|
/* store PCM device */
|
|
pcm_device->pcm = pcm_playback_ana;
|
|
/* give base chip pointer to our internal pcm device
|
|
structure */
|
|
pcm_device->chip = chip;
|
|
/* Give stream number to PCM device */
|
|
pcm_device->stream_number = NUM_STREAM_PLAYBACK_ANA;
|
|
|
|
/* pre-allocation of buffers */
|
|
/* Preallocate continuous pages. */
|
|
err = snd_pcm_lib_preallocate_pages_for_all(pcm_playback_ana,
|
|
SNDRV_DMA_TYPE_DEV,
|
|
snd_dma_pci_data
|
|
(chip->pci),
|
|
64 * 1024, 64 * 1024);
|
|
if (err)
|
|
printk(KERN_ERR "aw2: snd_pcm_lib_preallocate_pages_for_all "
|
|
"error (0x%X)\n", err);
|
|
|
|
err = snd_pcm_new(chip->card, "Audiowerk2 digital playback", 1, 1, 0,
|
|
&pcm_playback_num);
|
|
|
|
if (err < 0) {
|
|
printk(KERN_ERR "aw2: snd_pcm_new error (0x%X)\n", err);
|
|
return err;
|
|
}
|
|
/* Creation ok */
|
|
pcm_device = &chip->device_playback[NUM_STREAM_PLAYBACK_DIG];
|
|
|
|
/* Set PCM device name */
|
|
strcpy(pcm_playback_num->name, "Digital playback");
|
|
/* Associate private data to PCM device */
|
|
pcm_playback_num->private_data = pcm_device;
|
|
/* set operators of PCM device */
|
|
snd_pcm_set_ops(pcm_playback_num, SNDRV_PCM_STREAM_PLAYBACK,
|
|
&snd_aw2_playback_ops);
|
|
/* store PCM device */
|
|
pcm_device->pcm = pcm_playback_num;
|
|
/* give base chip pointer to our internal pcm device
|
|
structure */
|
|
pcm_device->chip = chip;
|
|
/* Give stream number to PCM device */
|
|
pcm_device->stream_number = NUM_STREAM_PLAYBACK_DIG;
|
|
|
|
/* pre-allocation of buffers */
|
|
/* Preallocate continuous pages. */
|
|
err = snd_pcm_lib_preallocate_pages_for_all(pcm_playback_num,
|
|
SNDRV_DMA_TYPE_DEV,
|
|
snd_dma_pci_data
|
|
(chip->pci),
|
|
64 * 1024, 64 * 1024);
|
|
if (err)
|
|
printk(KERN_ERR
|
|
"aw2: snd_pcm_lib_preallocate_pages_for_all error "
|
|
"(0x%X)\n", err);
|
|
|
|
|
|
|
|
err = snd_pcm_new(chip->card, "Audiowerk2 capture", 2, 0, 1,
|
|
&pcm_capture);
|
|
|
|
if (err < 0) {
|
|
printk(KERN_ERR "aw2: snd_pcm_new error (0x%X)\n", err);
|
|
return err;
|
|
}
|
|
|
|
/* Creation ok */
|
|
pcm_device = &chip->device_capture[NUM_STREAM_CAPTURE_ANA];
|
|
|
|
/* Set PCM device name */
|
|
strcpy(pcm_capture->name, "Capture");
|
|
/* Associate private data to PCM device */
|
|
pcm_capture->private_data = pcm_device;
|
|
/* set operators of PCM device */
|
|
snd_pcm_set_ops(pcm_capture, SNDRV_PCM_STREAM_CAPTURE,
|
|
&snd_aw2_capture_ops);
|
|
/* store PCM device */
|
|
pcm_device->pcm = pcm_capture;
|
|
/* give base chip pointer to our internal pcm device
|
|
structure */
|
|
pcm_device->chip = chip;
|
|
/* Give stream number to PCM device */
|
|
pcm_device->stream_number = NUM_STREAM_CAPTURE_ANA;
|
|
|
|
/* pre-allocation of buffers */
|
|
/* Preallocate continuous pages. */
|
|
err = snd_pcm_lib_preallocate_pages_for_all(pcm_capture,
|
|
SNDRV_DMA_TYPE_DEV,
|
|
snd_dma_pci_data
|
|
(chip->pci),
|
|
64 * 1024, 64 * 1024);
|
|
if (err)
|
|
printk(KERN_ERR
|
|
"aw2: snd_pcm_lib_preallocate_pages_for_all error "
|
|
"(0x%X)\n", err);
|
|
|
|
|
|
/* Create control */
|
|
err = snd_ctl_add(chip->card, snd_ctl_new1(&aw2_control, chip));
|
|
if (err < 0) {
|
|
printk(KERN_ERR "aw2: snd_ctl_add error (0x%X)\n", err);
|
|
return err;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int snd_aw2_control_switch_capture_info(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_info *uinfo)
|
|
{
|
|
static char *texts[2] = {
|
|
"Analog", "Digital"
|
|
};
|
|
uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
|
|
uinfo->count = 1;
|
|
uinfo->value.enumerated.items = 2;
|
|
if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items) {
|
|
uinfo->value.enumerated.item =
|
|
uinfo->value.enumerated.items - 1;
|
|
}
|
|
strcpy(uinfo->value.enumerated.name,
|
|
texts[uinfo->value.enumerated.item]);
|
|
return 0;
|
|
}
|
|
|
|
static int snd_aw2_control_switch_capture_get(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value
|
|
*ucontrol)
|
|
{
|
|
struct aw2 *chip = snd_kcontrol_chip(kcontrol);
|
|
if (snd_aw2_saa7146_is_using_digital_input(&chip->saa7146))
|
|
ucontrol->value.enumerated.item[0] = CTL_ROUTE_DIGITAL;
|
|
else
|
|
ucontrol->value.enumerated.item[0] = CTL_ROUTE_ANALOG;
|
|
return 0;
|
|
}
|
|
|
|
static int snd_aw2_control_switch_capture_put(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value
|
|
*ucontrol)
|
|
{
|
|
struct aw2 *chip = snd_kcontrol_chip(kcontrol);
|
|
int changed = 0;
|
|
int is_disgital =
|
|
snd_aw2_saa7146_is_using_digital_input(&chip->saa7146);
|
|
|
|
if (((ucontrol->value.integer.value[0] == CTL_ROUTE_DIGITAL)
|
|
&& !is_disgital)
|
|
|| ((ucontrol->value.integer.value[0] == CTL_ROUTE_ANALOG)
|
|
&& is_disgital)) {
|
|
snd_aw2_saa7146_use_digital_input(&chip->saa7146, !is_disgital);
|
|
changed = 1;
|
|
}
|
|
return changed;
|
|
}
|