433 lines
10 KiB
C
433 lines
10 KiB
C
/*
|
|
* Driver for audio on multifunction CS5535/6 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
|
|
*
|
|
*/
|
|
|
|
#include <sound/driver.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/init.h>
|
|
#include <linux/pci.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/moduleparam.h>
|
|
#include <asm/io.h>
|
|
#include <sound/core.h>
|
|
#include <sound/control.h>
|
|
#include <sound/pcm.h>
|
|
#include <sound/rawmidi.h>
|
|
#include <sound/ac97_codec.h>
|
|
#include <sound/initval.h>
|
|
#include <sound/asoundef.h>
|
|
#include "cs5535audio.h"
|
|
|
|
#define DRIVER_NAME "cs5535audio"
|
|
|
|
static char *ac97_quirk;
|
|
module_param(ac97_quirk, charp, 0444);
|
|
MODULE_PARM_DESC(ac97_quirk, "AC'97 board specific workarounds.");
|
|
|
|
static struct ac97_quirk ac97_quirks[] __devinitdata = {
|
|
#if 0 /* Not yet confirmed if all 5536 boards are HP only */
|
|
{
|
|
.subvendor = PCI_VENDOR_ID_AMD,
|
|
.subdevice = PCI_DEVICE_ID_AMD_CS5536_AUDIO,
|
|
.name = "AMD RDK",
|
|
.type = AC97_TUNE_HP_ONLY
|
|
},
|
|
#endif
|
|
{}
|
|
};
|
|
|
|
static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
|
|
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
|
|
static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
|
|
|
|
module_param_array(index, int, NULL, 0444);
|
|
MODULE_PARM_DESC(index, "Index value for " DRIVER_NAME);
|
|
module_param_array(id, charp, NULL, 0444);
|
|
MODULE_PARM_DESC(id, "ID string for " DRIVER_NAME);
|
|
module_param_array(enable, bool, NULL, 0444);
|
|
MODULE_PARM_DESC(enable, "Enable " DRIVER_NAME);
|
|
|
|
static struct pci_device_id snd_cs5535audio_ids[] = {
|
|
{ PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_CS5535_AUDIO) },
|
|
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CS5536_AUDIO) },
|
|
{}
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(pci, snd_cs5535audio_ids);
|
|
|
|
static void wait_till_cmd_acked(struct cs5535audio *cs5535au, unsigned long timeout)
|
|
{
|
|
unsigned int tmp;
|
|
do {
|
|
tmp = cs_readl(cs5535au, ACC_CODEC_CNTL);
|
|
if (!(tmp & CMD_NEW))
|
|
break;
|
|
udelay(1);
|
|
} while (--timeout);
|
|
if (!timeout)
|
|
snd_printk(KERN_ERR "Failure writing to cs5535 codec\n");
|
|
}
|
|
|
|
static unsigned short snd_cs5535audio_codec_read(struct cs5535audio *cs5535au,
|
|
unsigned short reg)
|
|
{
|
|
unsigned int regdata;
|
|
unsigned int timeout;
|
|
unsigned int val;
|
|
|
|
regdata = ((unsigned int) reg) << 24;
|
|
regdata |= ACC_CODEC_CNTL_RD_CMD;
|
|
regdata |= CMD_NEW;
|
|
|
|
cs_writel(cs5535au, ACC_CODEC_CNTL, regdata);
|
|
wait_till_cmd_acked(cs5535au, 50);
|
|
|
|
timeout = 50;
|
|
do {
|
|
val = cs_readl(cs5535au, ACC_CODEC_STATUS);
|
|
if ((val & STS_NEW) && reg == (val >> 24))
|
|
break;
|
|
udelay(1);
|
|
} while (--timeout);
|
|
if (!timeout)
|
|
snd_printk(KERN_ERR "Failure reading codec reg 0x%x,"
|
|
"Last value=0x%x\n", reg, val);
|
|
|
|
return (unsigned short) val;
|
|
}
|
|
|
|
static void snd_cs5535audio_codec_write(struct cs5535audio *cs5535au,
|
|
unsigned short reg, unsigned short val)
|
|
{
|
|
unsigned int regdata;
|
|
|
|
regdata = ((unsigned int) reg) << 24;
|
|
regdata |= val;
|
|
regdata &= CMD_MASK;
|
|
regdata |= CMD_NEW;
|
|
regdata &= ACC_CODEC_CNTL_WR_CMD;
|
|
|
|
cs_writel(cs5535au, ACC_CODEC_CNTL, regdata);
|
|
wait_till_cmd_acked(cs5535au, 50);
|
|
}
|
|
|
|
static void snd_cs5535audio_ac97_codec_write(struct snd_ac97 *ac97,
|
|
unsigned short reg, unsigned short val)
|
|
{
|
|
struct cs5535audio *cs5535au = ac97->private_data;
|
|
snd_cs5535audio_codec_write(cs5535au, reg, val);
|
|
}
|
|
|
|
static unsigned short snd_cs5535audio_ac97_codec_read(struct snd_ac97 *ac97,
|
|
unsigned short reg)
|
|
{
|
|
struct cs5535audio *cs5535au = ac97->private_data;
|
|
return snd_cs5535audio_codec_read(cs5535au, reg);
|
|
}
|
|
|
|
static int snd_cs5535audio_mixer(struct cs5535audio *cs5535au)
|
|
{
|
|
struct snd_card *card = cs5535au->card;
|
|
struct snd_ac97_bus *pbus;
|
|
struct snd_ac97_template ac97;
|
|
int err;
|
|
static struct snd_ac97_bus_ops ops = {
|
|
.write = snd_cs5535audio_ac97_codec_write,
|
|
.read = snd_cs5535audio_ac97_codec_read,
|
|
};
|
|
|
|
if ((err = snd_ac97_bus(card, 0, &ops, NULL, &pbus)) < 0)
|
|
return err;
|
|
|
|
memset(&ac97, 0, sizeof(ac97));
|
|
ac97.scaps = AC97_SCAP_AUDIO|AC97_SCAP_SKIP_MODEM;
|
|
ac97.private_data = cs5535au;
|
|
ac97.pci = cs5535au->pci;
|
|
|
|
if ((err = snd_ac97_mixer(pbus, &ac97, &cs5535au->ac97)) < 0) {
|
|
snd_printk(KERN_ERR "mixer failed\n");
|
|
return err;
|
|
}
|
|
|
|
snd_ac97_tune_hardware(cs5535au->ac97, ac97_quirks, ac97_quirk);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void process_bm0_irq(struct cs5535audio *cs5535au)
|
|
{
|
|
u8 bm_stat;
|
|
spin_lock(&cs5535au->reg_lock);
|
|
bm_stat = cs_readb(cs5535au, ACC_BM0_STATUS);
|
|
spin_unlock(&cs5535au->reg_lock);
|
|
if (bm_stat & EOP) {
|
|
struct cs5535audio_dma *dma;
|
|
dma = cs5535au->playback_substream->runtime->private_data;
|
|
snd_pcm_period_elapsed(cs5535au->playback_substream);
|
|
} else {
|
|
snd_printk(KERN_ERR "unexpected bm0 irq src, bm_stat=%x\n",
|
|
bm_stat);
|
|
}
|
|
}
|
|
|
|
static void process_bm1_irq(struct cs5535audio *cs5535au)
|
|
{
|
|
u8 bm_stat;
|
|
spin_lock(&cs5535au->reg_lock);
|
|
bm_stat = cs_readb(cs5535au, ACC_BM1_STATUS);
|
|
spin_unlock(&cs5535au->reg_lock);
|
|
if (bm_stat & EOP) {
|
|
struct cs5535audio_dma *dma;
|
|
dma = cs5535au->capture_substream->runtime->private_data;
|
|
snd_pcm_period_elapsed(cs5535au->capture_substream);
|
|
}
|
|
}
|
|
|
|
static irqreturn_t snd_cs5535audio_interrupt(int irq, void *dev_id)
|
|
{
|
|
u16 acc_irq_stat;
|
|
u8 bm_stat;
|
|
unsigned char count;
|
|
struct cs5535audio *cs5535au = dev_id;
|
|
|
|
if (cs5535au == NULL)
|
|
return IRQ_NONE;
|
|
|
|
acc_irq_stat = cs_readw(cs5535au, ACC_IRQ_STATUS);
|
|
|
|
if (!acc_irq_stat)
|
|
return IRQ_NONE;
|
|
for (count = 0; count < 10; count++) {
|
|
if (acc_irq_stat & (1 << count)) {
|
|
switch (count) {
|
|
case IRQ_STS:
|
|
cs_readl(cs5535au, ACC_GPIO_STATUS);
|
|
break;
|
|
case WU_IRQ_STS:
|
|
cs_readl(cs5535au, ACC_GPIO_STATUS);
|
|
break;
|
|
case BM0_IRQ_STS:
|
|
process_bm0_irq(cs5535au);
|
|
break;
|
|
case BM1_IRQ_STS:
|
|
process_bm1_irq(cs5535au);
|
|
break;
|
|
case BM2_IRQ_STS:
|
|
bm_stat = cs_readb(cs5535au, ACC_BM2_STATUS);
|
|
break;
|
|
case BM3_IRQ_STS:
|
|
bm_stat = cs_readb(cs5535au, ACC_BM3_STATUS);
|
|
break;
|
|
case BM4_IRQ_STS:
|
|
bm_stat = cs_readb(cs5535au, ACC_BM4_STATUS);
|
|
break;
|
|
case BM5_IRQ_STS:
|
|
bm_stat = cs_readb(cs5535au, ACC_BM5_STATUS);
|
|
break;
|
|
case BM6_IRQ_STS:
|
|
bm_stat = cs_readb(cs5535au, ACC_BM6_STATUS);
|
|
break;
|
|
case BM7_IRQ_STS:
|
|
bm_stat = cs_readb(cs5535au, ACC_BM7_STATUS);
|
|
break;
|
|
default:
|
|
snd_printk(KERN_ERR "Unexpected irq src\n");
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static int snd_cs5535audio_free(struct cs5535audio *cs5535au)
|
|
{
|
|
synchronize_irq(cs5535au->irq);
|
|
pci_set_power_state(cs5535au->pci, 3);
|
|
|
|
if (cs5535au->irq >= 0)
|
|
free_irq(cs5535au->irq, cs5535au);
|
|
|
|
pci_release_regions(cs5535au->pci);
|
|
pci_disable_device(cs5535au->pci);
|
|
kfree(cs5535au);
|
|
return 0;
|
|
}
|
|
|
|
static int snd_cs5535audio_dev_free(struct snd_device *device)
|
|
{
|
|
struct cs5535audio *cs5535au = device->device_data;
|
|
return snd_cs5535audio_free(cs5535au);
|
|
}
|
|
|
|
static int __devinit snd_cs5535audio_create(struct snd_card *card,
|
|
struct pci_dev *pci,
|
|
struct cs5535audio **rcs5535au)
|
|
{
|
|
struct cs5535audio *cs5535au;
|
|
|
|
int err;
|
|
static struct snd_device_ops ops = {
|
|
.dev_free = snd_cs5535audio_dev_free,
|
|
};
|
|
|
|
*rcs5535au = NULL;
|
|
if ((err = pci_enable_device(pci)) < 0)
|
|
return err;
|
|
|
|
if (pci_set_dma_mask(pci, DMA_32BIT_MASK) < 0 ||
|
|
pci_set_consistent_dma_mask(pci, DMA_32BIT_MASK) < 0) {
|
|
printk(KERN_WARNING "unable to get 32bit dma\n");
|
|
err = -ENXIO;
|
|
goto pcifail;
|
|
}
|
|
|
|
cs5535au = kzalloc(sizeof(*cs5535au), GFP_KERNEL);
|
|
if (cs5535au == NULL) {
|
|
err = -ENOMEM;
|
|
goto pcifail;
|
|
}
|
|
|
|
spin_lock_init(&cs5535au->reg_lock);
|
|
cs5535au->card = card;
|
|
cs5535au->pci = pci;
|
|
cs5535au->irq = -1;
|
|
|
|
if ((err = pci_request_regions(pci, "CS5535 Audio")) < 0) {
|
|
kfree(cs5535au);
|
|
goto pcifail;
|
|
}
|
|
|
|
cs5535au->port = pci_resource_start(pci, 0);
|
|
|
|
if (request_irq(pci->irq, snd_cs5535audio_interrupt,
|
|
IRQF_SHARED, "CS5535 Audio", cs5535au)) {
|
|
snd_printk("unable to grab IRQ %d\n", pci->irq);
|
|
err = -EBUSY;
|
|
goto sndfail;
|
|
}
|
|
|
|
cs5535au->irq = pci->irq;
|
|
pci_set_master(pci);
|
|
|
|
if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
|
|
cs5535au, &ops)) < 0)
|
|
goto sndfail;
|
|
|
|
snd_card_set_dev(card, &pci->dev);
|
|
|
|
*rcs5535au = cs5535au;
|
|
return 0;
|
|
|
|
sndfail: /* leave the device alive, just kill the snd */
|
|
snd_cs5535audio_free(cs5535au);
|
|
return err;
|
|
|
|
pcifail:
|
|
pci_disable_device(pci);
|
|
return err;
|
|
}
|
|
|
|
static int __devinit snd_cs5535audio_probe(struct pci_dev *pci,
|
|
const struct pci_device_id *pci_id)
|
|
{
|
|
static int dev;
|
|
struct snd_card *card;
|
|
struct cs5535audio *cs5535au;
|
|
int err;
|
|
|
|
if (dev >= SNDRV_CARDS)
|
|
return -ENODEV;
|
|
if (!enable[dev]) {
|
|
dev++;
|
|
return -ENOENT;
|
|
}
|
|
|
|
card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
|
|
if (card == NULL)
|
|
return -ENOMEM;
|
|
|
|
if ((err = snd_cs5535audio_create(card, pci, &cs5535au)) < 0)
|
|
goto probefail_out;
|
|
|
|
card->private_data = cs5535au;
|
|
|
|
if ((err = snd_cs5535audio_mixer(cs5535au)) < 0)
|
|
goto probefail_out;
|
|
|
|
if ((err = snd_cs5535audio_pcm(cs5535au)) < 0)
|
|
goto probefail_out;
|
|
|
|
strcpy(card->driver, DRIVER_NAME);
|
|
|
|
strcpy(card->shortname, "CS5535 Audio");
|
|
sprintf(card->longname, "%s %s at 0x%lx, irq %i",
|
|
card->shortname, card->driver,
|
|
cs5535au->port, cs5535au->irq);
|
|
|
|
if ((err = snd_card_register(card)) < 0)
|
|
goto probefail_out;
|
|
|
|
pci_set_drvdata(pci, card);
|
|
dev++;
|
|
return 0;
|
|
|
|
probefail_out:
|
|
snd_card_free(card);
|
|
return err;
|
|
}
|
|
|
|
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),
|
|
#ifdef CONFIG_PM
|
|
.suspend = snd_cs5535audio_suspend,
|
|
.resume = snd_cs5535audio_resume,
|
|
#endif
|
|
};
|
|
|
|
static int __init alsa_card_cs5535audio_init(void)
|
|
{
|
|
return pci_register_driver(&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");
|