UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

[SOUND] sparc: Port amd7930 to new SBUS device layer. 

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2006-06-23 16:23:12 -07:00
parent 576c352e89
commit 69b5c4f18b
1 changed files with 80 additions and 64 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

144
sound/sparc/amd7930.c
View File

@ -46,6 +46,7 @@
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/sbus.h>
#include <asm/prom.h>
static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
@ -335,7 +336,6 @@ struct snd_amd7930 {
int pgain;
int mgain;
struct sbus_dev *sdev;
unsigned int irq;
unsigned int regs_size;
struct snd_amd7930 *next;
@ -946,11 +946,9 @@ static struct snd_device_ops snd_amd7930_dev_ops = {
};
static int __init snd_amd7930_create(struct snd_card *card,
struct sbus_dev *sdev,
struct resource *rp,
unsigned int reg_size,
struct linux_prom_irqs *irq_prop,
int dev,
int irq, int dev,
struct snd_amd7930 **ramd)
{
unsigned long flags;
@ -964,7 +962,6 @@ static int __init snd_amd7930_create(struct snd_card *card,
spin_lock_init(&amd->lock);
amd->card = card;
amd->sdev = sdev;
amd->regs_size = reg_size;
amd->regs = sbus_ioremap(rp, 0, amd->regs_size, "amd7930");
@ -975,15 +972,14 @@ static int __init snd_amd7930_create(struct snd_card *card,
amd7930_idle(amd);
if (request_irq(irq_prop->pri, snd_amd7930_interrupt,
if (request_irq(irq, snd_amd7930_interrupt,
SA_INTERRUPT | SA_SHIRQ, "amd7930", amd)) {
snd_printk("amd7930-%d: Unable to grab IRQ %d\n",
dev,
irq_prop->pri);
dev, irq);
snd_amd7930_free(amd);
return -EBUSY;
}
amd->irq = irq_prop->pri;
amd->irq = irq;
amd7930_enable_ints(amd);
@ -1017,47 +1013,21 @@ static int __init snd_amd7930_create(struct snd_card *card,
return 0;
}
static int __init amd7930_attach(int prom_node, struct sbus_dev *sdev)
static int __init amd7930_attach_common(struct resource *rp, int irq)
{
static int dev;
struct linux_prom_registers reg_prop;
struct linux_prom_irqs irq_prop;
struct resource res, *rp;
static int dev_num;
struct snd_card *card;
struct snd_amd7930 *amd;
int err;
if (dev >= SNDRV_CARDS)
if (dev_num >= SNDRV_CARDS)
return -ENODEV;
if (!enable[dev]) {
dev++;
if (!enable[dev_num]) {
dev_num++;
return -ENOENT;
}
err = prom_getproperty(prom_node, "intr",
(char *) &irq_prop, sizeof(irq_prop));
if (err < 0) {
snd_printk("amd7930-%d: Firmware node lacks IRQ property.\n", dev);
return -ENODEV;
}
err = prom_getproperty(prom_node, "reg",
(char *) &reg_prop, sizeof(reg_prop));
if (err < 0) {
snd_printk("amd7930-%d: Firmware node lacks register property.\n", dev);
return -ENODEV;
}
if (sdev) {
rp = &sdev->resource[0];
} else {
rp = &res;
rp->start = reg_prop.phys_addr;
rp->end = rp->start + reg_prop.reg_size - 1;
rp->flags = IORESOURCE_IO | (reg_prop.which_io & 0xff);
}
card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
card = snd_card_new(index[dev_num], id[dev_num], THIS_MODULE, 0);
if (card == NULL)
return -ENOMEM;
@ -1067,10 +1037,11 @@ static int __init amd7930_attach(int prom_node, struct sbus_dev *sdev)
card->shortname,
rp->flags & 0xffL,
rp->start,
irq_prop.pri);
irq);
if ((err = snd_amd7930_create(card, sdev, rp, reg_prop.reg_size,
&irq_prop, dev, &amd)) < 0)
if ((err = snd_amd7930_create(card, rp,
(rp->end - rp->start) + 1,
irq, dev_num, &amd)) < 0)
goto out_err;
if ((err = snd_amd7930_pcm(amd)) < 0)
@ -1085,7 +1056,8 @@ static int __init amd7930_attach(int prom_node, struct sbus_dev *sdev)
amd->next = amd7930_list;
amd7930_list = amd;
dev++;
dev_num++;
return 0;
out_err:
@ -1093,29 +1065,71 @@ out_err:
return err;
}
static int __init amd7930_init(void)
static int __init amd7930_obio_attach(struct device_node *dp)
{
struct sbus_bus *sbus;
struct sbus_dev *sdev;
int node, found;
struct linux_prom_registers *regs;
struct linux_prom_irqs *irqp;
struct resource res, *rp;
int len;
found = 0;
/* Try to find the sun4c "audio" node first. */
node = prom_getchild(prom_root_node);
node = prom_searchsiblings(node, "audio");
if (node && amd7930_attach(node, NULL) == 0)
found++;
/* Probe each SBUS for amd7930 chips. */
for_all_sbusdev(sdev, sbus) {
if (!strcmp(sdev->prom_name, "audio")) {
if (amd7930_attach(sdev->prom_node, sdev) == 0)
found++;
}
irqp = of_get_property(dp, "intr", &len);
if (!irqp) {
snd_printk("%s: Firmware node lacks IRQ property.\n",
dp->full_name);
return -ENODEV;
}
return (found > 0) ? 0 : -EIO;
regs = of_get_property(dp, "reg", &len);
if (!regs) {
snd_printk("%s: Firmware node lacks register property.\n",
dp->full_name);
return -ENODEV;
}
rp = &res;
rp->start = regs->phys_addr;
rp->end = rp->start + regs->reg_size - 1;
rp->flags = IORESOURCE_IO | (regs->which_io & 0xff);
return amd7930_attach_common(rp, irqp->pri);
}
static int __devinit amd7930_sbus_probe(struct of_device *dev, const struct of_device_id *match)
{
struct sbus_dev *sdev = to_sbus_device(&dev->dev);
return amd7930_attach_common(&sdev->resource[0], sdev->irqs[0]);
}
static struct of_device_id amd7930_match[] = {
{
.name = "audio",
},
{},
};
static struct of_platform_driver amd7930_sbus_driver = {
.name = "audio",
.match_table = amd7930_match,
.probe = amd7930_sbus_probe,
};
static int __init amd7930_init(void)
{
struct device_node *dp;
/* Try to find the sun4c "audio" node first. */
dp = of_find_node_by_path("/");
dp = dp->child;
while (dp) {
if (!strcmp(dp->name, "audio"))
amd7930_obio_attach(dp);
dp = dp->sibling;
}
/* Probe each SBUS for amd7930 chips. */
return of_register_driver(&amd7930_sbus_driver, &sbus_bus_type);
}
static void __exit amd7930_exit(void)
@ -1131,6 +1145,8 @@ static void __exit amd7930_exit(void)
}
amd7930_list = NULL;
of_unregister_driver(&amd7930_sbus_driver);
}
module_init(amd7930_init);