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[ALSA] dbri: conversion to OpenFirmware framework
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This patch converts the dbri driver to use OF framework.

Signed-off-by: Krzysztof Helt <[email protected]>
Signed-off-by: Takashi Iwai <[email protected]>
Signed-off-by: Jaroslav Kysela <[email protected]>
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@Krzysztof-H @perexg
Krzysztof-H authored and perexg committed Oct 16, 2007
1 parent f545714 commit afeacfd
Showing 1 changed file with 69 additions and 74 deletions.
143 changes: 69 additions & 74 deletions sound/sparc/dbri.c
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Original file line number Diff line number Diff line change
Expand Up @@ -66,6 +66,7 @@
#include <sound/control.h>
#include <sound/initval.h>

#include <asm/prom.h>
#include <asm/sbus.h>
#include <asm/atomic.h>

Expand Down Expand Up @@ -296,8 +297,6 @@ struct dbri_streaminfo {

/* This structure holds the information for both chips (DBRI & CS4215) */
struct snd_dbri {
struct snd_card *card; /* ALSA card */

int regs_size, irq; /* Needed for unload */
struct sbus_dev *sdev; /* SBUS device info */
spinlock_t lock;
Expand All @@ -318,8 +317,6 @@ struct snd_dbri {
struct cs4215 mm; /* mmcodec special info */
/* per stream (playback/record) info */
struct dbri_streaminfo stream_info[DBRI_NO_STREAMS];

struct snd_dbri *next;
};

#define DBRI_MAX_VOLUME 63 /* Output volume */
Expand Down Expand Up @@ -571,8 +568,6 @@ struct snd_dbri {
#define DBRI_STREAM(dbri, substream) \
&dbri->stream_info[DBRI_STREAMNO(substream)]

static struct snd_dbri *dbri_list; /* All DBRI devices */

/*
* Short data pipes transmit LSB first. The CS4215 receives MSB first. Grrr.
* So we have to reverse the bits. Note: not all bit lengths are supported
Expand Down Expand Up @@ -748,7 +743,7 @@ static void dbri_reset(struct snd_dbri *dbri)
}

/* Lock must not be held before calling this */
static void __init dbri_initialize(struct snd_dbri *dbri)
static void __devinit dbri_initialize(struct snd_dbri *dbri)
{
s32 *cmd;
u32 dma_addr;
Expand Down Expand Up @@ -1308,7 +1303,7 @@ to the DBRI via the CHI interface and few of the DBRI's PIO pins.
* Lock must not be held before calling it.
*/
static __init void cs4215_setup_pipes(struct snd_dbri *dbri)
static __devinit void cs4215_setup_pipes(struct snd_dbri *dbri)
{
unsigned long flags;

Expand Down Expand Up @@ -1341,7 +1336,7 @@ static __init void cs4215_setup_pipes(struct snd_dbri *dbri)
dbri_cmdwait(dbri);
}

static __init int cs4215_init_data(struct cs4215 *mm)
static __devinit int cs4215_init_data(struct cs4215 *mm)
{
/*
* No action, memory resetting only.
Expand Down Expand Up @@ -1633,7 +1628,7 @@ static int cs4215_prepare(struct snd_dbri *dbri, unsigned int rate,
/*
*
*/
static __init int cs4215_init(struct snd_dbri *dbri)
static __devinit int cs4215_init(struct snd_dbri *dbri)
{
u32 reg2 = sbus_readl(dbri->regs + REG2);
dprintk(D_MM, "cs4215_init: reg2=0x%x\n", reg2);
Expand Down Expand Up @@ -2218,12 +2213,12 @@ static struct snd_pcm_ops snd_dbri_ops = {
.pointer = snd_dbri_pointer,
};

static int __devinit snd_dbri_pcm(struct snd_dbri *dbri)
static int __devinit snd_dbri_pcm(struct snd_card *card)
{
struct snd_pcm *pcm;
int err;

if ((err = snd_pcm_new(dbri->card,
if ((err = snd_pcm_new(card,
/* ID */ "sun_dbri",
/* device */ 0,
/* playback count */ 1,
Expand All @@ -2234,9 +2229,9 @@ static int __devinit snd_dbri_pcm(struct snd_dbri *dbri)
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_dbri_ops);
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_dbri_ops);

pcm->private_data = dbri;
pcm->private_data = card->private_data;
pcm->info_flags = 0;
strcpy(pcm->name, dbri->card->shortname);
strcpy(pcm->name, card->shortname);

if ((err = snd_pcm_lib_preallocate_pages_for_all(pcm,
SNDRV_DMA_TYPE_CONTINUOUS,
Expand Down Expand Up @@ -2422,14 +2417,14 @@ static struct snd_kcontrol_new dbri_controls[] __devinitdata = {
CS4215_SINGLE("Mic boost", 4, 4, 1, 1)
};

static int __init snd_dbri_mixer(struct snd_dbri *dbri)
static int __devinit snd_dbri_mixer(struct snd_card *card)
{
struct snd_card *card;
int idx, err;
struct snd_dbri *dbri;

snd_assert(dbri != NULL && dbri->card != NULL, return -EINVAL);
snd_assert(card != NULL && card->private_data != NULL, return -EINVAL);
dbri = card->private_data;

card = dbri->card;
strcpy(card->mixername, card->shortname);

for (idx = 0; idx < ARRAY_SIZE(dbri_controls); idx++) {
Expand Down Expand Up @@ -2485,15 +2480,16 @@ static void dbri_debug_read(struct snd_info_entry *entry,
}
#endif

void snd_dbri_proc(struct snd_dbri *dbri)
void __devinit snd_dbri_proc(struct snd_card *card)
{
struct snd_dbri *dbri = card->private_data;
struct snd_info_entry *entry;

if (!snd_card_proc_new(dbri->card, "regs", &entry))
if (!snd_card_proc_new(card, "regs", &entry))
snd_info_set_text_ops(entry, dbri, dbri_regs_read);

#ifdef DBRI_DEBUG
if (!snd_card_proc_new(dbri->card, "debug", &entry)) {
if (!snd_card_proc_new(card, "debug", &entry)) {
snd_info_set_text_ops(entry, dbri, dbri_debug_read);
entry->mode = S_IFREG | S_IRUGO; /* Readable only. */
}
Expand All @@ -2507,17 +2503,16 @@ void snd_dbri_proc(struct snd_dbri *dbri)
*/
static void snd_dbri_free(struct snd_dbri *dbri);

static int __init snd_dbri_create(struct snd_card *card,
static int __devinit snd_dbri_create(struct snd_card *card,
struct sbus_dev *sdev,
struct linux_prom_irqs *irq, int dev)
int irq, int dev)
{
struct snd_dbri *dbri = card->private_data;
int err;

spin_lock_init(&dbri->lock);
dbri->card = card;
dbri->sdev = sdev;
dbri->irq = irq->pri;
dbri->irq = irq;

dbri->dma = sbus_alloc_consistent(sdev, sizeof(struct dbri_dma),
&dbri->dma_dvma);
Expand Down Expand Up @@ -2555,9 +2550,6 @@ static int __init snd_dbri_create(struct snd_card *card,
return err;
}

dbri->next = dbri_list;
dbri_list = dbri;

return 0;
}

Expand All @@ -2577,20 +2569,19 @@ static void snd_dbri_free(struct snd_dbri *dbri)
(void *)dbri->dma, dbri->dma_dvma);
}

static int __init dbri_attach(int prom_node, struct sbus_dev *sdev)
static int __devinit dbri_probe(struct of_device *of_dev,
const struct of_device_id *match)
{
struct sbus_dev *sdev = to_sbus_device(&of_dev->dev);
struct snd_dbri *dbri;
struct linux_prom_irqs irq;
int irq;
struct resource *rp;
struct snd_card *card;
static int dev = 0;
int err;

if (sdev->prom_name[9] < 'e') {
printk(KERN_ERR "DBRI: unsupported chip version %c found.\n",
sdev->prom_name[9]);
return -EIO;
}
dprintk(D_GEN, "DBRI: Found %s in SBUS slot %d\n",
sdev->prom_name, sdev->slot);

if (dev >= SNDRV_CARDS)
return -ENODEV;
Expand All @@ -2599,10 +2590,9 @@ static int __init dbri_attach(int prom_node, struct sbus_dev *sdev)
return -ENOENT;
}

err = prom_getproperty(prom_node, "intr", (char *)&irq, sizeof(irq));
if (err < 0) {
printk(KERN_ERR "DBRI-%d: Firmware node lacks IRQ property.\n",
dev);
irq = sdev->irqs[0];
if (irq <= 0) {
printk(KERN_ERR "DBRI-%d: No IRQ.\n", dev);
return -ENODEV;
}

Expand All @@ -2616,24 +2606,26 @@ static int __init dbri_attach(int prom_node, struct sbus_dev *sdev)
rp = &sdev->resource[0];
sprintf(card->longname, "%s at 0x%02lx:0x%016Lx, irq %d",
card->shortname,
rp->flags & 0xffL, (unsigned long long)rp->start, irq.pri);
rp->flags & 0xffL, (unsigned long long)rp->start, irq);

if ((err = snd_dbri_create(card, sdev, &irq, dev)) < 0) {
err = snd_dbri_create(card, sdev, irq, dev);
if (err < 0) {
snd_card_free(card);
return err;
}

dbri = card->private_data;
err = snd_dbri_pcm(dbri);
err = snd_dbri_pcm(card);
if (err < 0)
goto _err;

err = snd_dbri_mixer(dbri);
err = snd_dbri_mixer(card);
if (err < 0)
goto _err;

/* /proc file handling */
snd_dbri_proc(dbri);
snd_dbri_proc(card);
dev_set_drvdata(&of_dev->dev, card);

err = snd_card_register(card);
if (err < 0)
Expand All @@ -2652,43 +2644,46 @@ static int __init dbri_attach(int prom_node, struct sbus_dev *sdev)
return err;
}

/* Probe for the dbri chip and then attach the driver. */
static int __init dbri_init(void)
static int __devexit dbri_remove(struct of_device *dev)
{
struct sbus_bus *sbus;
struct sbus_dev *sdev;
int found = 0;

/* Probe each SBUS for the DBRI chip(s). */
for_all_sbusdev(sdev, sbus) {
/*
* The version is coded in the last character
*/
if (!strncmp(sdev->prom_name, "SUNW,DBRI", 9)) {
dprintk(D_GEN, "DBRI: Found %s in SBUS slot %d\n",
sdev->prom_name, sdev->slot);
struct snd_card *card = dev_get_drvdata(&dev->dev);

if (dbri_attach(sdev->prom_node, sdev) == 0)
found++;
}
}
snd_dbri_free(card->private_data);
snd_card_free(card);

return (found > 0) ? 0 : -EIO;
dev_set_drvdata(&dev->dev, NULL);

return 0;
}

static void __exit dbri_exit(void)
{
struct snd_dbri *this = dbri_list;
static struct of_device_id dbri_match[] = {
{
.name = "SUNW,DBRIe",
},
{
.name = "SUNW,DBRIf",
},
{},
};

while (this != NULL) {
struct snd_dbri *next = this->next;
struct snd_card *card = this->card;
MODULE_DEVICE_TABLE(of, dbri_match);

snd_dbri_free(this);
snd_card_free(card);
this = next;
}
dbri_list = NULL;
static struct of_platform_driver dbri_sbus_driver = {
.name = "dbri",
.match_table = dbri_match,
.probe = dbri_probe,
.remove = __devexit_p(dbri_remove),
};

/* Probe for the dbri chip and then attach the driver. */
static int __init dbri_init(void)
{
return of_register_driver(&dbri_sbus_driver, &sbus_bus_type);
}

static void __exit dbri_exit(void)
{
of_unregister_driver(&dbri_sbus_driver);
}

module_init(dbri_init);
Expand Down

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