* other DBRI low-level stuff
*/
-#include <sound/driver.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/irq.h>
#include <linux/io.h>
+#include <linux/dma-mapping.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/control.h>
#include <sound/initval.h>
-#include <asm/sbus.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
#include <asm/atomic.h>
MODULE_AUTHOR("Rudolf Koenig, Brent Baccala and Martin Habets");
****************************************************************************/
/* DBRI main registers */
-#define REG0 0x00UL /* Status and Control */
-#define REG1 0x04UL /* Mode and Interrupt */
-#define REG2 0x08UL /* Parallel IO */
-#define REG3 0x0cUL /* Test */
-#define REG8 0x20UL /* Command Queue Pointer */
-#define REG9 0x24UL /* Interrupt Queue Pointer */
+#define REG0 0x00 /* Status and Control */
+#define REG1 0x04 /* Mode and Interrupt */
+#define REG2 0x08 /* Parallel IO */
+#define REG3 0x0c /* Test */
+#define REG8 0x20 /* Command Queue Pointer */
+#define REG9 0x24 /* Interrupt Queue Pointer */
#define DBRI_NO_CMDS 64
#define DBRI_INT_BLK 64
/* 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 */
+ struct of_device *op; /* OF device info */
spinlock_t lock;
struct dbri_dma *dma; /* Pointer to our DMA block */
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 */
/* Translate the ALSA direction into the array index */
#define DBRI_STREAMNO(substream) \
(substream->stream == \
- SNDRV_PCM_STREAM_PLAYBACK? DBRI_PLAY: DBRI_REC)
+ SNDRV_PCM_STREAM_PLAYBACK ? DBRI_PLAY: DBRI_REC)
/* Return a pointer to dbri_streaminfo */
#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
CPU interrupt to signal completion.
Since the DBRI can run in parallel with the CPU, several means of
-synchronization present themselves. The method implemented here is only
-use of the dbri_cmdwait() to wait for execution of batch of sent commands.
+synchronization present themselves. The method implemented here uses
+the dbri_cmdwait() to wait for execution of batch of sent commands.
A circular command buffer is used here. A new command is being added
while another can be executed. The scheme works by adding two WAIT commands
}
spin_unlock_irqrestore(&dbri->lock, flags);
- if (maxloops == 0) {
+ if (maxloops == 0)
printk(KERN_ERR "DBRI: Chip never completed command buffer\n");
- } else {
+ else
dprintk(D_CMD, "Chip completed command buffer (%d)\n",
MAXLOOPS - maxloops - 1);
- }
}
/*
- * Lock the command queue and returns pointer to a space for len cmd words
+ * Lock the command queue and return pointer to space for len cmd words
* It locks the cmdlock spinlock.
*/
static s32 *dbri_cmdlock(struct snd_dbri *dbri, int len)
}
/* Lock must not be held before calling this */
-static void dbri_initialize(struct snd_dbri *dbri)
+static void __devinit dbri_initialize(struct snd_dbri *dbri)
{
s32 *cmd;
u32 dma_addr;
here interface closely with the transmit and receive interrupt code.
*/
-static int pipe_active(struct snd_dbri *dbri, int pipe)
+static inline int pipe_active(struct snd_dbri *dbri, int pipe)
{
return ((pipe >= 0) && (dbri->pipes[pipe].desc != -1));
}
if (!dbri->dma->desc[desc].ba)
break;
}
+
if (desc == DBRI_NO_DESCS) {
printk(KERN_ERR "DBRI: setup_descs: No descriptors\n");
return -1;
* Lock must not be held before calling it.
*/
-static void cs4215_setup_pipes(struct snd_dbri *dbri)
+static __devinit void cs4215_setup_pipes(struct snd_dbri *dbri)
{
unsigned long flags;
dbri_cmdwait(dbri);
}
-static int cs4215_init_data(struct cs4215 *mm)
+static __devinit int cs4215_init_data(struct cs4215 *mm)
{
/*
* No action, memory resetting only.
/*
*
*/
-static 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);
static void transmission_complete_intr(struct snd_dbri *dbri, int pipe)
{
- struct dbri_streaminfo *info;
- int td;
+ struct dbri_streaminfo *info = &dbri->stream_info[DBRI_PLAY];
+ int td = dbri->pipes[pipe].desc;
int status;
- info = &dbri->stream_info[DBRI_PLAY];
-
- td = dbri->pipes[pipe].desc;
while (td >= 0) {
if (td >= DBRI_NO_DESCS) {
printk(KERN_ERR "DBRI: invalid td on pipe %d\n", pipe);
}
/* Notify ALSA */
- if (spin_is_locked(&dbri->lock)) {
- spin_unlock(&dbri->lock);
- snd_pcm_period_elapsed(info->substream);
- spin_lock(&dbri->lock);
- } else
- snd_pcm_period_elapsed(info->substream);
+ spin_unlock(&dbri->lock);
+ snd_pcm_period_elapsed(info->substream);
+ spin_lock(&dbri->lock);
}
static void reception_complete_intr(struct snd_dbri *dbri, int pipe)
rd, DBRI_RD_STATUS(status), DBRI_RD_CNT(status));
/* Notify ALSA */
- if (spin_is_locked(&dbri->lock)) {
- spin_unlock(&dbri->lock);
- snd_pcm_period_elapsed(info->substream);
- spin_lock(&dbri->lock);
- } else
- snd_pcm_period_elapsed(info->substream);
+ spin_unlock(&dbri->lock);
+ snd_pcm_period_elapsed(info->substream);
+ spin_lock(&dbri->lock);
}
static void dbri_process_one_interrupt(struct snd_dbri *dbri, int x)
PCM Interface
****************************************************************************/
static struct snd_pcm_hardware snd_dbri_pcm_hw = {
- .info = (SNDRV_PCM_INFO_MMAP |
- SNDRV_PCM_INFO_INTERLEAVED |
- SNDRV_PCM_INFO_BLOCK_TRANSFER |
- SNDRV_PCM_INFO_MMAP_VALID),
+ .info = SNDRV_PCM_INFO_MMAP |
+ SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_BLOCK_TRANSFER |
+ SNDRV_PCM_INFO_MMAP_VALID,
.formats = SNDRV_PCM_FMTBIT_MU_LAW |
SNDRV_PCM_FMTBIT_A_LAW |
SNDRV_PCM_FMTBIT_U8 |
.rate_max = 48000,
.channels_min = 1,
.channels_max = 2,
- .buffer_bytes_max = (64 * 1024),
+ .buffer_bytes_max = 64 * 1024,
.period_bytes_min = 1,
.period_bytes_max = DBRI_TD_MAXCNT,
.periods_min = 1,
*/
if (info->dvma_buffer == 0) {
if (DBRI_STREAMNO(substream) == DBRI_PLAY)
- direction = SBUS_DMA_TODEVICE;
+ direction = DMA_TO_DEVICE;
else
- direction = SBUS_DMA_FROMDEVICE;
+ direction = DMA_FROM_DEVICE;
- info->dvma_buffer = sbus_map_single(dbri->sdev,
- runtime->dma_area,
- params_buffer_bytes(hw_params),
- direction);
+ info->dvma_buffer =
+ dma_map_single(&dbri->op->dev,
+ runtime->dma_area,
+ params_buffer_bytes(hw_params),
+ direction);
}
direction = params_buffer_bytes(hw_params);
*/
if (info->dvma_buffer) {
if (DBRI_STREAMNO(substream) == DBRI_PLAY)
- direction = SBUS_DMA_TODEVICE;
+ direction = DMA_TO_DEVICE;
else
- direction = SBUS_DMA_FROMDEVICE;
+ direction = DMA_FROM_DEVICE;
- sbus_unmap_single(dbri->sdev, info->dvma_buffer,
- substream->runtime->buffer_size, direction);
+ dma_unmap_single(&dbri->op->dev, info->dvma_buffer,
+ substream->runtime->buffer_size, direction);
info->dvma_buffer = 0;
}
if (info->pipe != -1) {
.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,
/* capture count */ 1, &pcm)) < 0)
return err;
- snd_assert(pcm != NULL, return -EINVAL);
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,
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = 2;
uinfo->value.integer.min = 0;
- if (kcontrol->private_value == DBRI_PLAY) {
+ if (kcontrol->private_value == DBRI_PLAY)
uinfo->value.integer.max = DBRI_MAX_VOLUME;
- } else {
+ else
uinfo->value.integer.max = DBRI_MAX_GAIN;
- }
return 0;
}
{
struct snd_dbri *dbri = snd_kcontrol_chip(kcontrol);
struct dbri_streaminfo *info;
- snd_assert(dbri != NULL, return -EINVAL);
+
+ if (snd_BUG_ON(!dbri))
+ return -EINVAL;
info = &dbri->stream_info[kcontrol->private_value];
- snd_assert(info != NULL, return -EINVAL);
ucontrol->value.integer.value[0] = info->left_gain;
ucontrol->value.integer.value[1] = info->right_gain;
struct snd_dbri *dbri = snd_kcontrol_chip(kcontrol);
struct dbri_streaminfo *info =
&dbri->stream_info[kcontrol->private_value];
+ unsigned int vol[2];
int changed = 0;
- if (info->left_gain != ucontrol->value.integer.value[0]) {
- info->left_gain = ucontrol->value.integer.value[0];
+ vol[0] = ucontrol->value.integer.value[0];
+ vol[1] = ucontrol->value.integer.value[1];
+ if (kcontrol->private_value == DBRI_PLAY) {
+ if (vol[0] > DBRI_MAX_VOLUME || vol[1] > DBRI_MAX_VOLUME)
+ return -EINVAL;
+ } else {
+ if (vol[0] > DBRI_MAX_GAIN || vol[1] > DBRI_MAX_GAIN)
+ return -EINVAL;
+ }
+
+ if (info->left_gain != vol[0]) {
+ info->left_gain = vol[0];
changed = 1;
}
- if (info->right_gain != ucontrol->value.integer.value[1]) {
- info->right_gain = ucontrol->value.integer.value[1];
+ if (info->right_gain != vol[1]) {
+ info->right_gain = vol[1];
changed = 1;
}
- if (changed == 1) {
+ if (changed) {
/* First mute outputs, and wait 1/8000 sec (125 us)
* to make sure this takes. This avoids clicking noises.
*/
int shift = (kcontrol->private_value >> 8) & 0xff;
int mask = (kcontrol->private_value >> 16) & 0xff;
int invert = (kcontrol->private_value >> 24) & 1;
- snd_assert(dbri != NULL, return -EINVAL);
+
+ if (snd_BUG_ON(!dbri))
+ return -EINVAL;
if (elem < 4)
ucontrol->value.integer.value[0] =
int invert = (kcontrol->private_value >> 24) & 1;
int changed = 0;
unsigned short val;
- snd_assert(dbri != NULL, return -EINVAL);
+
+ if (snd_BUG_ON(!dbri))
+ return -EINVAL;
val = (ucontrol->value.integer.value[0] & mask);
if (invert == 1)
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);
+ if (snd_BUG_ON(!card || !card->private_data))
+ return -EINVAL;
+ dbri = card->private_data;
- card = dbri->card;
strcpy(card->mixername, card->shortname);
for (idx = 0; idx < ARRAY_SIZE(dbri_controls); idx++) {
- if ((err = snd_ctl_add(card,
- snd_ctl_new1(&dbri_controls[idx], dbri))) < 0)
+ err = snd_ctl_add(card,
+ snd_ctl_new1(&dbri_controls[idx], dbri));
+ if (err < 0)
return err;
}
"Pipe %d: %s SDP=0x%x desc=%d, "
"len=%d next %d\n",
pipe,
- ((pptr->sdp & D_SDP_TO_SER) ? "output" :
- "input"),
+ (pptr->sdp & D_SDP_TO_SER) ? "output" :
+ "input",
pptr->sdp, pptr->desc,
pptr->length, pptr->nextpipe);
}
}
#endif
-void snd_dbri_proc(struct snd_dbri *dbri)
+static 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. */
}
*/
static void snd_dbri_free(struct snd_dbri *dbri);
-static int __init snd_dbri_create(struct snd_card *card,
- struct sbus_dev *sdev,
- struct linux_prom_irqs *irq, int dev)
+static int __devinit snd_dbri_create(struct snd_card *card,
+ struct of_device *op,
+ 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->op = op;
+ dbri->irq = irq;
- dbri->dma = sbus_alloc_consistent(sdev, sizeof(struct dbri_dma),
- &dbri->dma_dvma);
+ dbri->dma = dma_alloc_coherent(&op->dev,
+ sizeof(struct dbri_dma),
+ &dbri->dma_dvma, GFP_ATOMIC);
+ if (!dbri->dma)
+ return -ENOMEM;
memset((void *)dbri->dma, 0, sizeof(struct dbri_dma));
dprintk(D_GEN, "DMA Cmd Block 0x%p (0x%08x)\n",
dbri->dma, dbri->dma_dvma);
/* Map the registers into memory. */
- dbri->regs_size = sdev->reg_addrs[0].reg_size;
- dbri->regs = sbus_ioremap(&sdev->resource[0], 0,
- dbri->regs_size, "DBRI Registers");
+ dbri->regs_size = resource_size(&op->resource[0]);
+ dbri->regs = of_ioremap(&op->resource[0], 0,
+ dbri->regs_size, "DBRI Registers");
if (!dbri->regs) {
printk(KERN_ERR "DBRI: could not allocate registers\n");
- sbus_free_consistent(sdev, sizeof(struct dbri_dma),
- (void *)dbri->dma, dbri->dma_dvma);
+ dma_free_coherent(&op->dev, sizeof(struct dbri_dma),
+ (void *)dbri->dma, dbri->dma_dvma);
return -EIO;
}
"DBRI audio", dbri);
if (err) {
printk(KERN_ERR "DBRI: Can't get irq %d\n", dbri->irq);
- sbus_iounmap(dbri->regs, dbri->regs_size);
- sbus_free_consistent(sdev, sizeof(struct dbri_dma),
- (void *)dbri->dma, dbri->dma_dvma);
+ of_iounmap(&op->resource[0], dbri->regs, dbri->regs_size);
+ dma_free_coherent(&op->dev, sizeof(struct dbri_dma),
+ (void *)dbri->dma, dbri->dma_dvma);
return err;
}
return err;
}
- dbri->next = dbri_list;
- dbri_list = dbri;
-
return 0;
}
free_irq(dbri->irq, dbri);
if (dbri->regs)
- sbus_iounmap(dbri->regs, dbri->regs_size);
+ of_iounmap(&dbri->op->resource[0], dbri->regs, dbri->regs_size);
if (dbri->dma)
- sbus_free_consistent(dbri->sdev, sizeof(struct dbri_dma),
- (void *)dbri->dma, dbri->dma_dvma);
+ dma_free_coherent(&dbri->op->dev,
+ sizeof(struct dbri_dma),
+ (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 *op, const struct of_device_id *match)
{
struct snd_dbri *dbri;
- struct linux_prom_irqs irq;
struct resource *rp;
struct snd_card *card;
static int dev = 0;
+ int irq;
int err;
- if (sdev->prom_name[9] < 'e') {
- printk(KERN_ERR "DBRI: unsupported chip version %c found.\n",
- sdev->prom_name[9]);
- return -EIO;
- }
-
if (dev >= SNDRV_CARDS)
return -ENODEV;
if (!enable[dev]) {
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 = op->irqs[0];
+ if (irq <= 0) {
+ printk(KERN_ERR "DBRI-%d: No IRQ.\n", dev);
return -ENODEV;
}
strcpy(card->driver, "DBRI");
strcpy(card->shortname, "Sun DBRI");
- rp = &sdev->resource[0];
+ rp = &op->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, op, irq, dev);
+ if (err < 0) {
snd_card_free(card);
return err;
}
dbri = card->private_data;
- if ((err = snd_dbri_pcm(dbri)) < 0)
+ err = snd_dbri_pcm(card);
+ if (err < 0)
goto _err;
- if ((err = snd_dbri_mixer(dbri)) < 0)
- if ((err = snd_dbri_mixer(dbri)) < 0)
+ err = snd_dbri_mixer(card);
+ if (err < 0)
goto _err;
/* /proc file handling */
- snd_dbri_proc(dbri);
+ snd_dbri_proc(card);
+ dev_set_drvdata(&op->dev, card);
err = snd_card_register(card);
if (err < 0)
printk(KERN_INFO "audio%d at %p (irq %d) is DBRI(%c)+CS4215(%d)\n",
dev, dbri->regs,
- dbri->irq, sdev->prom_name[9], dbri->mm.version);
+ dbri->irq, op->node->name[9], dbri->mm.version);
dev++;
return 0;
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 *op)
{
- 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(&op->dev);
- if (dbri_attach(sdev->prom_node, sdev) == 0)
- found++;
- }
- }
+ snd_dbri_free(card->private_data);
+ snd_card_free(card);
+
+ dev_set_drvdata(&op->dev, NULL);
- return (found > 0) ? 0 : -EIO;
+ return 0;
}
-static void __exit dbri_exit(void)
-{
- struct snd_dbri *this = dbri_list;
+static const 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, &of_bus_type);
+}
+
+static void __exit dbri_exit(void)
+{
+ of_unregister_driver(&dbri_sbus_driver);
}
module_init(dbri_init);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff