[ALSA] Add support for the CS5535 Audio device
Add support for the CS5535 Audio device. I've fixed up some errors as per Takashi's advice from the thread: http://lkml.org/lkml/2005/9/15/119 From: Alan Cox <alan@lxorguk.ukuu.org.uk> cs5535 is a 32bit x86 only device using weird CPU features Signed-off-by: Jaya Kumar <jayakumar.alsa@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Jaya Kumar
Jaroslav Kysela
parent
c3e6f7d876
commit
9b4ffa48ae
1
CREDITS
1
CREDITS
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@ -1883,6 +1883,7 @@ N: Jaya Kumar
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E: jayalk@intworks.biz
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W: http://www.intworks.biz
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D: Arc monochrome LCD framebuffer driver, x86 reboot fixups
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D: pirq addr, CS5535 alsa audio driver
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S: Gurgaon, India
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S: Kuala Lumpur, Malaysia
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@ -650,6 +650,11 @@ L: linux-crypto@vger.kernel.org
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T: git kernel.org:/pub/scm/linux/kernel/git/herbert/crypto-2.6.git
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S: Maintained
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CS5535 Audio ALSA driver
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P: Jaya Kumar
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M: jayakumar.alsa@gmail.com
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S: Maintained
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CYBERPRO FB DRIVER
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P: Russell King
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M: rmk@arm.linux.org.uk
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@ -376,6 +376,10 @@
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#define PCI_DEVICE_ID_NS_87560_USB 0x0012
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#define PCI_DEVICE_ID_NS_83815 0x0020
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#define PCI_DEVICE_ID_NS_83820 0x0022
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#define PCI_DEVICE_ID_NS_CS5535_IDE 0x002d
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#define PCI_DEVICE_ID_NS_CS5535_AUDIO 0x002e
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#define PCI_DEVICE_ID_NS_CS5535_USB 0x002f
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#define PCI_DEVICE_ID_NS_CS5535_VIDEO 0x0030
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#define PCI_DEVICE_ID_NS_SATURN 0x0035
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#define PCI_DEVICE_ID_NS_SCx200_BRIDGE 0x0500
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#define PCI_DEVICE_ID_NS_SCx200_SMI 0x0501
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@ -359,6 +359,19 @@ config SND_ENS1370
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To compile this driver as a module, choose M here: the module
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will be called snd-ens1370.
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config SND_CS5535AUDIO
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tristate "CS5535 Audio"
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depends on SND && X86 && !X86_64
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select SND_PCM
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select SND_AC97_CODEC
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help
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Say Y here to include support for audio on CS5535 chips. It is
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referred to as NS CS5535 IO or AMD CS5535 IO companion in
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various literature.
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To compile this driver as a module, choose M here: the module
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will be called snd-cs5535audio.
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config SND_ENS1371
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tristate "(Creative) Ensoniq AudioPCI 1371/1373"
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depends on SND
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@ -54,6 +54,7 @@ obj-$(CONFIG_SND) += \
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au88x0/ \
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ca0106/ \
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cs46xx/ \
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cs5535audio/ \
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emu10k1/ \
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hda/ \
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ice1712/ \
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@ -0,0 +1,8 @@
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#
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# Makefile for cs5535audio
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#
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snd-cs5535audio-objs := cs5535audio.o cs5535audio_pcm.o
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# Toplevel Module Dependency
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obj-$(CONFIG_SND_CS5535AUDIO) += snd-cs5535audio.o
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@ -0,0 +1,410 @@
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/*
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* Driver for audio on multifunction CS5535 companion device
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* Copyright (C) Jaya Kumar
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*
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* Based on Jaroslav Kysela and Takashi Iwai's examples.
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* This work was sponsored by CIS(M) Sdn Bhd.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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 this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include <linux/delay.h>
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#include <linux/interrupt.h>
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#include <linux/init.h>
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#include <linux/pci.h>
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#include <linux/slab.h>
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#include <linux/moduleparam.h>
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#include <asm/io.h>
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#include <sound/driver.h>
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#include <sound/core.h>
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#include <sound/control.h>
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#include <sound/pcm.h>
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#include <sound/rawmidi.h>
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#include <sound/ac97_codec.h>
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#include <sound/initval.h>
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#include <sound/asoundef.h>
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#include "cs5535audio.h"
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#define DRIVER_NAME "cs5535audio"
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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 int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
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static struct pci_device_id snd_cs5535audio_ids[] = {
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{ PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_CS5535_AUDIO, PCI_ANY_ID,
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PCI_ANY_ID, 0, 0, 0, },
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{}
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};
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MODULE_DEVICE_TABLE(pci, snd_cs5535audio_ids);
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static void wait_till_cmd_acked(cs5535audio_t *cs5535au, unsigned long timeout)
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{
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unsigned long tmp;
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do {
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tmp = cs_readl(cs5535au, ACC_CODEC_CNTL);
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if (!(tmp & CMD_NEW))
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break;
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msleep(10);
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} while (--timeout);
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if (!timeout)
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snd_printk(KERN_ERR "Failure writing to cs5535 codec\n");
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}
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static unsigned short snd_cs5535audio_codec_read(cs5535audio_t *cs5535au,
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unsigned short reg)
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{
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unsigned long regdata;
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unsigned long timeout;
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unsigned long val;
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regdata = ((unsigned long) reg) << 24;
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regdata |= ACC_CODEC_CNTL_RD_CMD;
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regdata |= CMD_NEW;
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cs_writel(cs5535au, ACC_CODEC_CNTL, regdata);
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wait_till_cmd_acked(cs5535au, 500);
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timeout = 50;
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do {
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val = cs_readl(cs5535au, ACC_CODEC_STATUS);
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if ( (val & STS_NEW) &&
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((unsigned long) reg == ((0xFF000000 & val)>>24)) )
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break;
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msleep(10);
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} while (--timeout);
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if (!timeout)
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snd_printk(KERN_ERR "Failure reading cs5535 codec\n");
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return ((unsigned short) val);
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}
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static void snd_cs5535audio_codec_write(cs5535audio_t *cs5535au,
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unsigned short reg, unsigned short val)
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{
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unsigned long regdata;
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regdata = ((unsigned long) reg) << 24;
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regdata |= (unsigned long) val;
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regdata &= CMD_MASK;
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regdata |= CMD_NEW;
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regdata &= ACC_CODEC_CNTL_WR_CMD;
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cs_writel(cs5535au, ACC_CODEC_CNTL, regdata);
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wait_till_cmd_acked(cs5535au, 50);
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}
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static void snd_cs5535audio_ac97_codec_write(ac97_t *ac97,
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unsigned short reg, unsigned short val)
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{
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cs5535audio_t *cs5535au = ac97->private_data;
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snd_cs5535audio_codec_write(cs5535au, reg, val);
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}
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static unsigned short snd_cs5535audio_ac97_codec_read(ac97_t *ac97,
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unsigned short reg)
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{
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cs5535audio_t *cs5535au = ac97->private_data;
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return snd_cs5535audio_codec_read(cs5535au, reg);
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}
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static void snd_cs5535audio_mixer_free_ac97(ac97_t *ac97)
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{
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cs5535audio_t *cs5535audio = ac97->private_data;
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cs5535audio->ac97 = NULL;
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}
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static int snd_cs5535audio_mixer(cs5535audio_t *cs5535au)
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{
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snd_card_t *card = cs5535au->card;
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ac97_bus_t *pbus;
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ac97_template_t ac97;
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int err;
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static ac97_bus_ops_t ops = {
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.write = snd_cs5535audio_ac97_codec_write,
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.read = snd_cs5535audio_ac97_codec_read,
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};
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if ((err = snd_ac97_bus(card, 0, &ops, NULL, &pbus)) < 0)
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return err;
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memset(&ac97, 0, sizeof(ac97));
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ac97.scaps = AC97_SCAP_AUDIO|AC97_SCAP_SKIP_MODEM;
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ac97.private_data = cs5535au;
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ac97.pci = cs5535au->pci;
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ac97.private_free = snd_cs5535audio_mixer_free_ac97;
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if ((err = snd_ac97_mixer(pbus, &ac97, &cs5535au->ac97)) < 0) {
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snd_printk("mixer failed\n");
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return err;
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}
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return 0;
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}
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static void process_bm0_irq(cs5535audio_t *cs5535au)
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{
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u8 bm_stat;
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spin_lock(&cs5535au->reg_lock);
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bm_stat = cs_readb(cs5535au, ACC_BM0_STATUS);
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spin_unlock(&cs5535au->reg_lock);
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if (bm_stat & EOP) {
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cs5535audio_dma_t *dma;
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dma = cs5535au->playback_substream->runtime->private_data;
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snd_pcm_period_elapsed(cs5535au->playback_substream);
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} else {
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snd_printk(KERN_ERR "unexpected bm0 irq src, bm_stat=%x\n",
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bm_stat);
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}
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}
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static void process_bm1_irq(cs5535audio_t *cs5535au)
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{
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u8 bm_stat;
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spin_lock(&cs5535au->reg_lock);
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bm_stat = cs_readb(cs5535au, ACC_BM1_STATUS);
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spin_unlock(&cs5535au->reg_lock);
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if (bm_stat & EOP) {
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cs5535audio_dma_t *dma;
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dma = cs5535au->capture_substream->runtime->private_data;
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snd_pcm_period_elapsed(cs5535au->capture_substream);
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}
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}
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static irqreturn_t snd_cs5535audio_interrupt(int irq, void *dev_id,
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struct pt_regs *regs)
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{
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u16 acc_irq_stat;
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u8 bm_stat;
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unsigned char count;
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cs5535audio_t *cs5535au = dev_id;
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if (cs5535au == NULL)
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return IRQ_NONE;
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acc_irq_stat = cs_readw(cs5535au, ACC_IRQ_STATUS);
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if (!acc_irq_stat)
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return IRQ_NONE;
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for (count=0; count < 10; count++) {
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if (acc_irq_stat & (1<<count)) {
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switch (count) {
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case IRQ_STS:
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cs_readl(cs5535au, ACC_GPIO_STATUS);
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break;
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case WU_IRQ_STS:
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cs_readl(cs5535au, ACC_GPIO_STATUS);
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break;
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case BM0_IRQ_STS:
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process_bm0_irq(cs5535au);
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break;
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case BM1_IRQ_STS:
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process_bm1_irq(cs5535au);
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break;
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case BM2_IRQ_STS:
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bm_stat = cs_readb(cs5535au, ACC_BM2_STATUS);
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break;
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case BM3_IRQ_STS:
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bm_stat = cs_readb(cs5535au, ACC_BM3_STATUS);
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break;
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case BM4_IRQ_STS:
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bm_stat = cs_readb(cs5535au, ACC_BM4_STATUS);
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break;
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case BM5_IRQ_STS:
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bm_stat = cs_readb(cs5535au, ACC_BM5_STATUS);
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break;
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case BM6_IRQ_STS:
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bm_stat = cs_readb(cs5535au, ACC_BM6_STATUS);
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break;
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case BM7_IRQ_STS:
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bm_stat = cs_readb(cs5535au, ACC_BM7_STATUS);
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break;
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default:
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snd_printk(KERN_ERR "Unexpected irq src\n");
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break;
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}
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}
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}
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return IRQ_HANDLED;
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}
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static int snd_cs5535audio_free(cs5535audio_t *cs5535au)
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{
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synchronize_irq(cs5535au->irq);
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pci_set_power_state(cs5535au->pci, 3);
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if (cs5535au->irq >= 0)
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free_irq(cs5535au->irq, cs5535au);
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pci_release_regions(cs5535au->pci);
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pci_disable_device(cs5535au->pci);
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kfree(cs5535au);
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return 0;
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}
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static int snd_cs5535audio_dev_free(snd_device_t *device)
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{
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cs5535audio_t *cs5535au = device->device_data;
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return snd_cs5535audio_free(cs5535au);
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}
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static int __devinit snd_cs5535audio_create(snd_card_t *card,
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struct pci_dev *pci,
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cs5535audio_t **rcs5535au)
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{
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cs5535audio_t *cs5535au;
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int err;
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static snd_device_ops_t ops = {
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.dev_free = snd_cs5535audio_dev_free,
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};
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*rcs5535au = NULL;
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if ((err = pci_enable_device(pci)) < 0)
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return err;
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if (pci_set_dma_mask(pci, DMA_32BIT_MASK) < 0 ||
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pci_set_consistent_dma_mask(pci, DMA_32BIT_MASK) < 0) {
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printk(KERN_WARNING "unable to get 32bit dma\n");
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err = -ENXIO;
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goto pcifail;
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}
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cs5535au = kzalloc(sizeof(*cs5535au), GFP_KERNEL);
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if (cs5535au == NULL) {
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err = -ENOMEM;
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goto pcifail;
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}
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spin_lock_init(&cs5535au->reg_lock);
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cs5535au->card = card;
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cs5535au->pci = pci;
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cs5535au->irq = -1;
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if ((err = pci_request_regions(pci, "CS5535 Audio")) < 0) {
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kfree(cs5535au);
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goto pcifail;
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}
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cs5535au->port = pci_resource_start(pci, 0);
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if (request_irq(pci->irq, snd_cs5535audio_interrupt,
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SA_INTERRUPT|SA_SHIRQ, "CS5535 Audio", cs5535au)) {
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snd_printk("unable to grab IRQ %d\n", pci->irq);
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err = -EBUSY;
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goto sndfail;
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}
|
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cs5535au->irq = pci->irq;
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pci_set_master(pci);
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if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
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cs5535au, &ops)) < 0)
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goto sndfail;
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snd_card_set_dev(card, &pci->dev);
|
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*rcs5535au = cs5535au;
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return 0;
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sndfail: /* leave the device alive, just kill the snd */
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snd_cs5535audio_free(cs5535au);
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return err;
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pcifail:
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pci_disable_device(pci);
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return err;
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}
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static int __devinit snd_cs5535audio_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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snd_card_t *card;
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cs5535audio_t *cs5535au;
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int err;
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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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card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
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if (card == NULL)
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return -ENOMEM;
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if ((err = snd_cs5535audio_create(card, pci, &cs5535au)) < 0)
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goto probefail_out;
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if ((err = snd_cs5535audio_mixer(cs5535au)) < 0)
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goto probefail_out;
|
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|
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if ((err = snd_cs5535audio_pcm(cs5535au)) < 0)
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goto probefail_out;
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strcpy(card->driver, DRIVER_NAME);
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strcpy(card->shortname, "CS5535 Audio");
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sprintf(card->longname, "%s %s at 0x%lx, irq %i",
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card->shortname, card->driver,
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cs5535au->port, cs5535au->irq);
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if ((err = snd_card_register(card)) < 0)
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goto probefail_out;
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pci_set_drvdata(pci, card);
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dev++;
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return 0;
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probefail_out:
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snd_card_free(card);
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return err;
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}
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|
||||
static void __devexit snd_cs5535audio_remove(struct pci_dev *pci)
|
||||
{
|
||||
snd_card_free(pci_get_drvdata(pci));
|
||||
pci_set_drvdata(pci, NULL);
|
||||
}
|
||||
|
||||
static struct pci_driver driver = {
|
||||
.name = DRIVER_NAME,
|
||||
.id_table = snd_cs5535audio_ids,
|
||||
.probe = snd_cs5535audio_probe,
|
||||
.remove = __devexit_p(snd_cs5535audio_remove),
|
||||
};
|
||||
|
||||
static int __init alsa_card_cs5535audio_init(void)
|
||||
{
|
||||
return pci_module_init(&driver);
|
||||
}
|
||||
|
||||
static void __exit alsa_card_cs5535audio_exit(void)
|
||||
{
|
||||
pci_unregister_driver(&driver);
|
||||
}
|
||||
|
||||
module_init(alsa_card_cs5535audio_init)
|
||||
module_exit(alsa_card_cs5535audio_exit)
|
||||
|
||||
MODULE_AUTHOR("Jaya Kumar");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_DESCRIPTION("CS5535 Audio");
|
||||
MODULE_SUPPORTED_DEVICE("CS5535 Audio");
|
||||
|
|
@ -0,0 +1,123 @@
|
|||
#ifndef __SOUND_CS5535AUDIO_H
|
||||
#define __SOUND_CS5535AUDIO_H
|
||||
|
||||
#define cs_writel(cs5535au, reg, val) outl(val, (int) cs5535au->port + reg)
|
||||
#define cs_writeb(cs5535au, reg, val) outb(val, (int) cs5535au->port + reg)
|
||||
#define cs_readl(cs5535au, reg) inl((unsigned short) (cs5535au->port + reg))
|
||||
#define cs_readw(cs5535au, reg) inw((unsigned short) (cs5535au->port + reg))
|
||||
#define cs_readb(cs5535au, reg) inb((unsigned short) (cs5535au->port + reg))
|
||||
|
||||
#define CS5535AUDIO_MAX_DESCRIPTORS 128
|
||||
|
||||
/* acc_codec bar0 reg addrs */
|
||||
#define ACC_GPIO_STATUS 0x00
|
||||
#define ACC_CODEC_STATUS 0x08
|
||||
#define ACC_CODEC_CNTL 0x0C
|
||||
#define ACC_IRQ_STATUS 0x12
|
||||
#define ACC_BM0_CMD 0x20
|
||||
#define ACC_BM1_CMD 0x28
|
||||
#define ACC_BM2_CMD 0x30
|
||||
#define ACC_BM3_CMD 0x38
|
||||
#define ACC_BM4_CMD 0x40
|
||||
#define ACC_BM5_CMD 0x48
|
||||
#define ACC_BM6_CMD 0x50
|
||||
#define ACC_BM7_CMD 0x58
|
||||
#define ACC_BM0_PRD 0x24
|
||||
#define ACC_BM1_PRD 0x2C
|
||||
#define ACC_BM2_PRD 0x34
|
||||
#define ACC_BM3_PRD 0x3C
|
||||
#define ACC_BM4_PRD 0x44
|
||||
#define ACC_BM5_PRD 0x4C
|
||||
#define ACC_BM6_PRD 0x54
|
||||
#define ACC_BM7_PRD 0x5C
|
||||
#define ACC_BM0_STATUS 0x21
|
||||
#define ACC_BM1_STATUS 0x29
|
||||
#define ACC_BM2_STATUS 0x31
|
||||
#define ACC_BM3_STATUS 0x39
|
||||
#define ACC_BM4_STATUS 0x41
|
||||
#define ACC_BM5_STATUS 0x49
|
||||
#define ACC_BM6_STATUS 0x51
|
||||
#define ACC_BM7_STATUS 0x59
|
||||
#define ACC_BM0_PNTR 0x60
|
||||
#define ACC_BM1_PNTR 0x64
|
||||
#define ACC_BM2_PNTR 0x68
|
||||
#define ACC_BM3_PNTR 0x6C
|
||||
#define ACC_BM4_PNTR 0x70
|
||||
#define ACC_BM5_PNTR 0x74
|
||||
#define ACC_BM6_PNTR 0x78
|
||||
#define ACC_BM7_PNTR 0x7C
|
||||
/* acc_codec bar0 reg bits */
|
||||
/* ACC_IRQ_STATUS */
|
||||
#define IRQ_STS 0
|
||||
#define WU_IRQ_STS 1
|
||||
#define BM0_IRQ_STS 2
|
||||
#define BM1_IRQ_STS 3
|
||||
#define BM2_IRQ_STS 4
|
||||
#define BM3_IRQ_STS 5
|
||||
#define BM4_IRQ_STS 6
|
||||
#define BM5_IRQ_STS 7
|
||||
#define BM6_IRQ_STS 8
|
||||
#define BM7_IRQ_STS 9
|
||||
/* ACC_BMX_STATUS */
|
||||
#define EOP (1<<0)
|
||||
#define BM_EOP_ERR (1<<1)
|
||||
/* ACC_BMX_CTL */
|
||||
#define BM_CTL_EN 0x00000001
|
||||
#define BM_CTL_PAUSE 0x00000011
|
||||
#define BM_CTL_DIS 0x00000000
|
||||
#define BM_CTL_BYTE_ORD_LE 0x00000000
|
||||
#define BM_CTL_BYTE_ORD_BE 0x00000100
|
||||
/* cs5535 specific ac97 codec register defines */
|
||||
#define CMD_MASK 0xFF00FFFF
|
||||
#define CMD_NEW 0x00010000
|
||||
#define STS_NEW 0x00020000
|
||||
#define PRM_RDY_STS 0x00800000
|
||||
#define ACC_CODEC_CNTL_WR_CMD (~0x80000000)
|
||||
#define ACC_CODEC_CNTL_RD_CMD 0x80000000
|
||||
#define PRD_JMP 0x2000
|
||||
#define PRD_EOP 0x4000
|
||||
#define PRD_EOT 0x8000
|
||||
|
||||
typedef struct _snd_cs5535audio cs5535audio_t;
|
||||
typedef struct snd_cs5535audio_dma cs5535audio_dma_t;
|
||||
typedef struct snd_cs5535audio_dma_ops cs5535audio_dma_ops_t;
|
||||
|
||||
enum { CS5535AUDIO_DMA_PLAYBACK, CS5535AUDIO_DMA_CAPTURE, NUM_CS5535AUDIO_DMAS };
|
||||
struct snd_cs5535audio_dma_ops {
|
||||
int type;
|
||||
void (*enable_dma)(cs5535audio_t *cs5535au);
|
||||
void (*disable_dma)(cs5535audio_t *cs5535au);
|
||||
void (*pause_dma)(cs5535audio_t *cs5535au);
|
||||
void (*setup_prd)(cs5535audio_t *cs5535au, u32 prd_addr);
|
||||
u32 (*read_dma_pntr)(cs5535audio_t *cs5535au);
|
||||
};
|
||||
|
||||
typedef struct cs5535audio_dma_desc {
|
||||
u32 addr;
|
||||
u16 size;
|
||||
u16 ctlreserved;
|
||||
} cs5535audio_dma_desc_t;
|
||||
|
||||
struct snd_cs5535audio_dma {
|
||||
const cs5535audio_dma_ops_t *ops;
|
||||
struct snd_dma_buffer desc_buf;
|
||||
snd_pcm_substream_t *substream;
|
||||
unsigned int buf_addr, buf_bytes;
|
||||
unsigned int period_bytes, periods;
|
||||
};
|
||||
|
||||
struct _snd_cs5535audio {
|
||||
snd_card_t *card;
|
||||
ac97_t *ac97;
|
||||
int irq;
|
||||
struct pci_dev *pci;
|
||||
unsigned long port;
|
||||
spinlock_t reg_lock;
|
||||
snd_pcm_substream_t *playback_substream;
|
||||
snd_pcm_substream_t *capture_substream;
|
||||
cs5535audio_dma_t dmas[NUM_CS5535AUDIO_DMAS];
|
||||
};
|
||||
|
||||
int __devinit snd_cs5535audio_pcm(cs5535audio_t *cs5535audio);
|
||||
#endif /* __SOUND_CS5535AUDIO_H */
|
||||
|
||||
|
|
@ -0,0 +1,430 @@
|
|||
/*
|
||||
* Driver for audio on multifunction CS5535 companion device
|
||||
* Copyright (C) Jaya Kumar
|
||||
*
|
||||
* Based on Jaroslav Kysela and Takashi Iwai's examples.
|
||||
* This work was sponsored by CIS(M) Sdn Bhd.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*
|
||||
* todo: add be fmt support, spdif, pm
|
||||
*/
|
||||
|
||||
#include <linux/init.h>
|
||||
#include <linux/slab.h>
|
||||
#include <linux/pci.h>
|
||||
#include <sound/driver.h>
|
||||
#include <sound/core.h>
|
||||
#include <sound/control.h>
|
||||
#include <sound/initval.h>
|
||||
#include <sound/asoundef.h>
|
||||
#include <sound/pcm.h>
|
||||
#include <sound/pcm_params.h>
|
||||
#include <sound/ac97_codec.h>
|
||||
#include "cs5535audio.h"
|
||||
|
||||
static snd_pcm_hardware_t snd_cs5535audio_playback =
|
||||
{
|
||||
.info = (
|
||||
SNDRV_PCM_INFO_MMAP |
|
||||
SNDRV_PCM_INFO_INTERLEAVED |
|
||||
SNDRV_PCM_INFO_BLOCK_TRANSFER |
|
||||
SNDRV_PCM_INFO_MMAP_VALID |
|
||||
SNDRV_PCM_INFO_PAUSE |
|
||||
SNDRV_PCM_INFO_SYNC_START
|
||||
),
|
||||
.formats = (
|
||||
SNDRV_PCM_FMTBIT_S16_LE
|
||||
),
|
||||
.rates = (
|
||||
SNDRV_PCM_RATE_CONTINUOUS |
|
||||
SNDRV_PCM_RATE_8000_48000
|
||||
),
|
||||
.rate_min = 4000,
|
||||
.rate_max = 48000,
|
||||
.channels_min = 2,
|
||||
.channels_max = 2,
|
||||
.buffer_bytes_max = (128*1024),
|
||||
.period_bytes_min = 64,
|
||||
.period_bytes_max = (64*1024 - 16),
|
||||
.periods_min = 1,
|
||||
.periods_max = CS5535AUDIO_MAX_DESCRIPTORS,
|
||||
.fifo_size = 0,
|
||||
};
|
||||
|
||||
static snd_pcm_hardware_t snd_cs5535audio_capture =
|
||||
{
|
||||
.info = (
|
||||
SNDRV_PCM_INFO_MMAP |
|
||||
SNDRV_PCM_INFO_INTERLEAVED |
|
||||
SNDRV_PCM_INFO_BLOCK_TRANSFER |
|
||||
SNDRV_PCM_INFO_MMAP_VALID |
|
||||
SNDRV_PCM_INFO_SYNC_START
|
||||
),
|
||||
.formats = (
|
||||
SNDRV_PCM_FMTBIT_S16_LE
|
||||
),
|
||||
.rates = (
|
||||
SNDRV_PCM_RATE_CONTINUOUS |
|
||||
SNDRV_PCM_RATE_8000_48000
|
||||
),
|
||||
.rate_min = 4000,
|
||||
.rate_max = 48000,
|
||||
.channels_min = 2,
|
||||
.channels_max = 2,
|
||||
.buffer_bytes_max = (128*1024),
|
||||
.period_bytes_min = 64,
|
||||
.period_bytes_max = (64*1024 - 16),
|
||||
.periods_min = 1,
|
||||
.periods_max = CS5535AUDIO_MAX_DESCRIPTORS,
|
||||
.fifo_size = 0,
|
||||
};
|
||||
|
||||
static int snd_cs5535audio_playback_open(snd_pcm_substream_t *substream)
|
||||
{
|
||||
int err;
|
||||
cs5535audio_t *cs5535au = snd_pcm_substream_chip(substream);
|
||||
snd_pcm_runtime_t *runtime = substream->runtime;
|
||||
|
||||
runtime->hw = snd_cs5535audio_playback;
|
||||
cs5535au->playback_substream = substream;
|
||||
runtime->private_data = &(cs5535au->dmas[CS5535AUDIO_DMA_PLAYBACK]);
|
||||
snd_pcm_set_sync(substream);
|
||||
if ((err = snd_pcm_hw_constraint_integer(runtime,
|
||||
SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
|
||||
return err;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int snd_cs5535audio_playback_close(snd_pcm_substream_t *substream)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
#define CS5535AUDIO_DESC_LIST_SIZE \
|
||||
PAGE_ALIGN(CS5535AUDIO_MAX_DESCRIPTORS * sizeof(cs5535audio_dma_desc_t))
|
||||
|
||||
static int cs5535audio_build_dma_packets(cs5535audio_t *cs5535au,
|
||||
cs5535audio_dma_t *dma,
|
||||
snd_pcm_substream_t *substream,
|
||||
unsigned int periods,
|
||||
unsigned int period_bytes)
|
||||
{
|
||||
unsigned int i;
|
||||
u32 addr, desc_addr, jmpprd_addr;
|
||||
cs5535audio_dma_desc_t *lastdesc;
|
||||
|
||||
if (periods > CS5535AUDIO_MAX_DESCRIPTORS)
|
||||
return -ENOMEM;
|
||||
|
||||
if (dma->desc_buf.area == NULL) {
|
||||
if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
|
||||
snd_dma_pci_data(cs5535au->pci),
|
||||
CS5535AUDIO_DESC_LIST_SIZE+1,
|
||||
&dma->desc_buf) < 0)
|
||||
return -ENOMEM;
|
||||
dma->period_bytes = dma->periods = 0;
|
||||
}
|
||||
|
||||
if (dma->periods == periods && dma->period_bytes == period_bytes)
|
||||
return 0;
|
||||
|
||||
/* the u32 cast is okay because in snd*create we succesfully told
|
||||
pci alloc that we're only 32 bit capable so the uppper will be 0 */
|
||||
addr = (u32) substream->runtime->dma_addr;
|
||||
desc_addr = (u32) dma->desc_buf.addr;
|
||||
for (i = 0; i < periods; i++) {
|
||||
cs5535audio_dma_desc_t *desc =
|
||||
&((cs5535audio_dma_desc_t *) dma->desc_buf.area)[i];
|
||||
desc->addr = cpu_to_le32(addr);
|
||||
desc->size = period_bytes;
|
||||
desc->ctlreserved = PRD_EOP;
|
||||
desc_addr += sizeof(cs5535audio_dma_desc_t);
|
||||
addr += period_bytes;
|
||||
}
|
||||
/* we reserved one dummy descriptor at the end to do the PRD jump */
|
||||
lastdesc = &((cs5535audio_dma_desc_t *) dma->desc_buf.area)[periods];
|
||||
lastdesc->addr = cpu_to_le32((u32) dma->desc_buf.addr);
|
||||
lastdesc->size = 0;
|
||||
lastdesc->ctlreserved = PRD_JMP;
|
||||
jmpprd_addr = cpu_to_le32(lastdesc->addr +
|
||||
(sizeof(cs5535audio_dma_desc_t)*periods));
|
||||
|
||||
dma->period_bytes = period_bytes;
|
||||
dma->periods = periods;
|
||||
spin_lock_irq(&cs5535au->reg_lock);
|
||||
dma->ops->disable_dma(cs5535au);
|
||||
dma->ops->setup_prd(cs5535au, jmpprd_addr);
|
||||
spin_unlock_irq(&cs5535au->reg_lock);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void cs5535audio_playback_enable_dma(cs5535audio_t *cs5535au)
|
||||
{
|
||||
cs_writeb(cs5535au, ACC_BM0_CMD, BM_CTL_EN);
|
||||
}
|
||||
|
||||
static void cs5535audio_playback_disable_dma(cs5535audio_t *cs5535au)
|
||||
{
|
||||
cs_writeb(cs5535au, ACC_BM0_CMD, 0);
|
||||
}
|
||||
|
||||
static void cs5535audio_playback_pause_dma(cs5535audio_t *cs5535au)
|
||||
{
|
||||
cs_writeb(cs5535au, ACC_BM0_CMD, BM_CTL_PAUSE);
|
||||
}
|
||||
|
||||
static void cs5535audio_playback_setup_prd(cs5535audio_t *cs5535au,
|
||||
u32 prd_addr)
|
||||
{
|
||||
cs_writel(cs5535au, ACC_BM0_PRD, prd_addr);
|
||||
}
|
||||
|
||||
static u32 cs5535audio_playback_read_dma_pntr(cs5535audio_t *cs5535au)
|
||||
{
|
||||
return cs_readl(cs5535au, ACC_BM0_PNTR);
|
||||
}
|
||||
|
||||
static void cs5535audio_capture_enable_dma(cs5535audio_t *cs5535au)
|
||||
{
|
||||
cs_writeb(cs5535au, ACC_BM1_CMD, BM_CTL_EN);
|
||||
}
|
||||
|
||||
static void cs5535audio_capture_disable_dma(cs5535audio_t *cs5535au)
|
||||
{
|
||||
cs_writeb(cs5535au, ACC_BM1_CMD, 0);
|
||||
}
|
||||
|
||||
static void cs5535audio_capture_pause_dma(cs5535audio_t *cs5535au)
|
||||
{
|
||||
cs_writeb(cs5535au, ACC_BM1_CMD, BM_CTL_PAUSE);
|
||||
}
|
||||
|
||||
static void cs5535audio_capture_setup_prd(cs5535audio_t *cs5535au,
|
||||
u32 prd_addr)
|
||||
{
|
||||
cs_writel(cs5535au, ACC_BM1_PRD, prd_addr);
|
||||
}
|
||||
|
||||
static u32 cs5535audio_capture_read_dma_pntr(cs5535audio_t *cs5535au)
|
||||
{
|
||||
return cs_readl(cs5535au, ACC_BM1_PNTR);
|
||||
}
|
||||
|
||||
static void cs5535audio_clear_dma_packets(cs5535audio_t *cs5535au,
|
||||
cs5535audio_dma_t *dma,
|
||||
snd_pcm_substream_t *substream)
|
||||
{
|
||||
snd_dma_free_pages(&dma->desc_buf);
|
||||
dma->desc_buf.area = NULL;
|
||||
}
|
||||
|
||||
static int snd_cs5535audio_hw_params(snd_pcm_substream_t *substream,
|
||||
snd_pcm_hw_params_t *hw_params)
|
||||
{
|
||||
cs5535audio_t *cs5535au = snd_pcm_substream_chip(substream);
|
||||
cs5535audio_dma_t *dma = substream->runtime->private_data;
|
||||
int err;
|
||||
|
||||
err = snd_pcm_lib_malloc_pages(substream,
|
||||
params_buffer_bytes(hw_params));
|
||||
if (err < 0)
|
||||
return err;
|
||||
dma->buf_addr = substream->runtime->dma_addr;
|
||||
dma->buf_bytes = params_buffer_bytes(hw_params);
|
||||
|
||||
err = cs5535audio_build_dma_packets(cs5535au, dma, substream,
|
||||
params_periods(hw_params),
|
||||
params_period_bytes(hw_params));
|
||||
return err;
|
||||
}
|
||||
|
||||
static int snd_cs5535audio_hw_free(snd_pcm_substream_t *substream)
|
||||
{
|
||||
cs5535audio_t *cs5535au = snd_pcm_substream_chip(substream);
|
||||
cs5535audio_dma_t *dma = substream->runtime->private_data;
|
||||
|
||||
cs5535audio_clear_dma_packets(cs5535au, dma, substream);
|
||||
return snd_pcm_lib_free_pages(substream);
|
||||
}
|
||||
|
||||
static int snd_cs5535audio_playback_prepare(snd_pcm_substream_t *substream)
|
||||
{
|
||||
cs5535audio_t *cs5535au = snd_pcm_substream_chip(substream);
|
||||
return snd_ac97_set_rate(cs5535au->ac97, AC97_PCM_FRONT_DAC_RATE,
|
||||
substream->runtime->rate);
|
||||
}
|
||||
|
||||
static int snd_cs5535audio_trigger(snd_pcm_substream_t *substream, int cmd)
|
||||
{
|
||||
cs5535audio_t *cs5535au = snd_pcm_substream_chip(substream);
|
||||
cs5535audio_dma_t *dma = substream->runtime->private_data;
|
||||
|
||||
switch (cmd) {
|
||||
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
|
||||
spin_lock_irq(&cs5535au->reg_lock);
|
||||
dma->ops->pause_dma(cs5535au);
|
||||
spin_unlock_irq(&cs5535au->reg_lock);
|
||||
break;
|
||||
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
|
||||
spin_lock_irq(&cs5535au->reg_lock);
|
||||
dma->ops->enable_dma(cs5535au);
|
||||
spin_unlock_irq(&cs5535au->reg_lock);
|
||||
break;
|
||||
case SNDRV_PCM_TRIGGER_START:
|
||||
spin_lock_irq(&cs5535au->reg_lock);
|
||||
dma->ops->enable_dma(cs5535au);
|
||||
spin_unlock_irq(&cs5535au->reg_lock);
|
||||
break;
|
||||
case SNDRV_PCM_TRIGGER_STOP:
|
||||
spin_lock_irq(&cs5535au->reg_lock);
|
||||
dma->ops->disable_dma(cs5535au);
|
||||
spin_unlock_irq(&cs5535au->reg_lock);
|
||||
break;
|
||||
default:
|
||||
snd_printk(KERN_ERR "unhandled trigger\n");
|
||||
return -EINVAL;
|
||||
break;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static snd_pcm_uframes_t snd_cs5535audio_pcm_pointer(snd_pcm_substream_t
|
||||
*substream)
|
||||
{
|
||||
cs5535audio_t *cs5535au = snd_pcm_substream_chip(substream);
|
||||
u32 curdma;
|
||||
cs5535audio_dma_t *dma;
|
||||
|
||||
dma = substream->runtime->private_data;
|
||||
curdma = dma->ops->read_dma_pntr(cs5535au);
|
||||
if (curdma < dma->buf_addr) {
|
||||
snd_printk(KERN_ERR "curdma=%x < %x bufaddr.\n",
|
||||
curdma, dma->buf_addr);
|
||||
return 0;
|
||||
}
|
||||
curdma -= dma->buf_addr;
|
||||
if (curdma >= dma->buf_bytes) {
|
||||
snd_printk(KERN_ERR "diff=%x >= %x buf_bytes.\n",
|
||||
curdma, dma->buf_bytes);
|
||||
return 0;
|
||||
}
|
||||
return bytes_to_frames(substream->runtime, curdma);
|
||||
}
|
||||
|
||||
static int snd_cs5535audio_capture_open(snd_pcm_substream_t *substream)
|
||||
{
|
||||
int err;
|
||||
cs5535audio_t *cs5535au = snd_pcm_substream_chip(substream);
|
||||
snd_pcm_runtime_t *runtime = substream->runtime;
|
||||
|
||||
runtime->hw = snd_cs5535audio_capture;
|
||||
cs5535au->capture_substream = substream;
|
||||
runtime->private_data = &(cs5535au->dmas[CS5535AUDIO_DMA_CAPTURE]);
|
||||
snd_pcm_set_sync(substream);
|
||||
if ((err = snd_pcm_hw_constraint_integer(runtime,
|
||||
SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
|
||||
return err;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int snd_cs5535audio_capture_close(snd_pcm_substream_t *substream)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int snd_cs5535audio_capture_prepare(snd_pcm_substream_t *substream)
|
||||
{
|
||||
cs5535audio_t *cs5535au = snd_pcm_substream_chip(substream);
|
||||
return snd_ac97_set_rate(cs5535au->ac97, AC97_PCM_LR_ADC_RATE,
|
||||
substream->runtime->rate);
|
||||
}
|
||||
|
||||
static snd_pcm_ops_t snd_cs5535audio_playback_ops = {
|
||||
.open = snd_cs5535audio_playback_open,
|
||||
.close = snd_cs5535audio_playback_close,
|
||||
.ioctl = snd_pcm_lib_ioctl,
|
||||
.hw_params = snd_cs5535audio_hw_params,
|
||||
.hw_free = snd_cs5535audio_hw_free,
|
||||
.prepare = snd_cs5535audio_playback_prepare,
|
||||
.trigger = snd_cs5535audio_trigger,
|
||||
.pointer = snd_cs5535audio_pcm_pointer,
|
||||
};
|
||||
|
||||
static snd_pcm_ops_t snd_cs5535audio_capture_ops = {
|
||||
.open = snd_cs5535audio_capture_open,
|
||||
.close = snd_cs5535audio_capture_close,
|
||||
.ioctl = snd_pcm_lib_ioctl,
|
||||
.hw_params = snd_cs5535audio_hw_params,
|
||||
.hw_free = snd_cs5535audio_hw_free,
|
||||
.prepare = snd_cs5535audio_capture_prepare,
|
||||
.trigger = snd_cs5535audio_trigger,
|
||||
.pointer = snd_cs5535audio_pcm_pointer,
|
||||
};
|
||||
|
||||
static void snd_cs5535audio_pcm_free(snd_pcm_t *pcm)
|
||||
{
|
||||
snd_pcm_lib_preallocate_free_for_all(pcm);
|
||||
}
|
||||
|
||||
static cs5535audio_dma_ops_t snd_cs5535audio_playback_dma_ops = {
|
||||
.type = CS5535AUDIO_DMA_PLAYBACK,
|
||||
.enable_dma = cs5535audio_playback_enable_dma,
|
||||
.disable_dma = cs5535audio_playback_disable_dma,
|
||||
.setup_prd = cs5535audio_playback_setup_prd,
|
||||
.pause_dma = cs5535audio_playback_pause_dma,
|
||||
.read_dma_pntr = cs5535audio_playback_read_dma_pntr,
|
||||
};
|
||||
|
||||
static cs5535audio_dma_ops_t snd_cs5535audio_capture_dma_ops = {
|
||||
.type = CS5535AUDIO_DMA_CAPTURE,
|
||||
.enable_dma = cs5535audio_capture_enable_dma,
|
||||
.disable_dma = cs5535audio_capture_disable_dma,
|
||||
.setup_prd = cs5535audio_capture_setup_prd,
|
||||
.pause_dma = cs5535audio_capture_pause_dma,
|
||||
.read_dma_pntr = cs5535audio_capture_read_dma_pntr,
|
||||
};
|
||||
|
||||
int __devinit snd_cs5535audio_pcm(cs5535audio_t *cs5535au)
|
||||
{
|
||||
snd_pcm_t *pcm;
|
||||
int err;
|
||||
|
||||
err = snd_pcm_new(cs5535au->card, "CS5535 Audio", 0, 1, 1, &pcm);
|
||||
if (err < 0)
|
||||
return err;
|
||||
|
||||
cs5535au->dmas[CS5535AUDIO_DMA_PLAYBACK].ops =
|
||||
&snd_cs5535audio_playback_dma_ops;
|
||||
cs5535au->dmas[CS5535AUDIO_DMA_CAPTURE].ops =
|
||||
&snd_cs5535audio_capture_dma_ops;
|
||||
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
|
||||
&snd_cs5535audio_playback_ops);
|
||||
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
|
||||
&snd_cs5535audio_capture_ops);
|
||||
|
||||
pcm->private_data = cs5535au;
|
||||
pcm->private_free = snd_cs5535audio_pcm_free;
|
||||
pcm->info_flags = 0;
|
||||
strcpy(pcm->name, "CS5535 Audio");
|
||||
|
||||
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
|
||||
snd_dma_pci_data(cs5535au->pci),
|
||||
64*1024, 128*1024);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
Reference in New Issue