#include <linux/interrupt.h>
#include <linux/pci.h>
#include <linux/module.h>
+#include <linux/vmalloc.h>
#include <sound/core.h>
#include <sound/info.h>
#define RME96_AD1852_VOL_BITS 14
#define RME96_AD1855_VOL_BITS 10
+/* Defines for snd_rme96_trigger */
+#define RME96_TB_START_PLAYBACK 1
+#define RME96_TB_START_CAPTURE 2
+#define RME96_TB_STOP_PLAYBACK 4
+#define RME96_TB_STOP_CAPTURE 8
+#define RME96_TB_RESET_PLAYPOS 16
+#define RME96_TB_RESET_CAPTUREPOS 32
+#define RME96_TB_CLEAR_PLAYBACK_IRQ 64
+#define RME96_TB_CLEAR_CAPTURE_IRQ 128
+#define RME96_RESUME_PLAYBACK (RME96_TB_START_PLAYBACK)
+#define RME96_RESUME_CAPTURE (RME96_TB_START_CAPTURE)
+#define RME96_RESUME_BOTH (RME96_RESUME_PLAYBACK \
+ | RME96_RESUME_CAPTURE)
+#define RME96_START_PLAYBACK (RME96_TB_START_PLAYBACK \
+ | RME96_TB_RESET_PLAYPOS)
+#define RME96_START_CAPTURE (RME96_TB_START_CAPTURE \
+ | RME96_TB_RESET_CAPTUREPOS)
+#define RME96_START_BOTH (RME96_START_PLAYBACK \
+ | RME96_START_CAPTURE)
+#define RME96_STOP_PLAYBACK (RME96_TB_STOP_PLAYBACK \
+ | RME96_TB_CLEAR_PLAYBACK_IRQ)
+#define RME96_STOP_CAPTURE (RME96_TB_STOP_CAPTURE \
+ | RME96_TB_CLEAR_CAPTURE_IRQ)
+#define RME96_STOP_BOTH (RME96_STOP_PLAYBACK \
+ | RME96_STOP_CAPTURE)
struct rme96 {
spinlock_t lock;
u8 rev; /* card revision number */
+#ifdef CONFIG_PM
+ u32 playback_pointer;
+ u32 capture_pointer;
+ void *playback_suspend_buffer;
+ void *capture_suspend_buffer;
+#endif
+
struct snd_pcm_substream *playback_substream;
struct snd_pcm_substream *capture_substream;
{
.info = (SNDRV_PCM_INFO_MMAP_IOMEM |
SNDRV_PCM_INFO_MMAP_VALID |
+ SNDRV_PCM_INFO_SYNC_START |
+ SNDRV_PCM_INFO_RESUME |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_PAUSE),
.formats = (SNDRV_PCM_FMTBIT_S16_LE |
{
.info = (SNDRV_PCM_INFO_MMAP_IOMEM |
SNDRV_PCM_INFO_MMAP_VALID |
+ SNDRV_PCM_INFO_SYNC_START |
+ SNDRV_PCM_INFO_RESUME |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_PAUSE),
.formats = (SNDRV_PCM_FMTBIT_S16_LE |
{
.info = (SNDRV_PCM_INFO_MMAP_IOMEM |
SNDRV_PCM_INFO_MMAP_VALID |
+ SNDRV_PCM_INFO_SYNC_START |
+ SNDRV_PCM_INFO_RESUME |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_PAUSE),
.formats = (SNDRV_PCM_FMTBIT_S16_LE |
{
.info = (SNDRV_PCM_INFO_MMAP_IOMEM |
SNDRV_PCM_INFO_MMAP_VALID |
+ SNDRV_PCM_INFO_SYNC_START |
+ SNDRV_PCM_INFO_RESUME |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_PAUSE),
.formats = (SNDRV_PCM_FMTBIT_S16_LE |
}
static void
-snd_rme96_playback_start(struct rme96 *rme96,
- int from_pause)
+snd_rme96_trigger(struct rme96 *rme96,
+ int op)
{
- if (!from_pause) {
+ if (op & RME96_TB_RESET_PLAYPOS)
writel(0, rme96->iobase + RME96_IO_RESET_PLAY_POS);
- }
-
- rme96->wcreg |= RME96_WCR_START;
- writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
-}
-
-static void
-snd_rme96_capture_start(struct rme96 *rme96,
- int from_pause)
-{
- if (!from_pause) {
+ if (op & RME96_TB_RESET_CAPTUREPOS)
writel(0, rme96->iobase + RME96_IO_RESET_REC_POS);
- }
-
- rme96->wcreg |= RME96_WCR_START_2;
+ if (op & RME96_TB_CLEAR_PLAYBACK_IRQ) {
+ rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
+ if (rme96->rcreg & RME96_RCR_IRQ)
+ writel(0, rme96->iobase + RME96_IO_CONFIRM_PLAY_IRQ);
+ }
+ if (op & RME96_TB_CLEAR_CAPTURE_IRQ) {
+ rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
+ if (rme96->rcreg & RME96_RCR_IRQ_2)
+ writel(0, rme96->iobase + RME96_IO_CONFIRM_REC_IRQ);
+ }
+ if (op & RME96_TB_START_PLAYBACK)
+ rme96->wcreg |= RME96_WCR_START;
+ if (op & RME96_TB_STOP_PLAYBACK)
+ rme96->wcreg &= ~RME96_WCR_START;
+ if (op & RME96_TB_START_CAPTURE)
+ rme96->wcreg |= RME96_WCR_START_2;
+ if (op & RME96_TB_STOP_CAPTURE)
+ rme96->wcreg &= ~RME96_WCR_START_2;
writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
}
-static void
-snd_rme96_playback_stop(struct rme96 *rme96)
-{
- /*
- * Check if there is an unconfirmed IRQ, if so confirm it, or else
- * the hardware will not stop generating interrupts
- */
- rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
- if (rme96->rcreg & RME96_RCR_IRQ) {
- writel(0, rme96->iobase + RME96_IO_CONFIRM_PLAY_IRQ);
- }
- rme96->wcreg &= ~RME96_WCR_START;
- writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
-}
-static void
-snd_rme96_capture_stop(struct rme96 *rme96)
-{
- rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
- if (rme96->rcreg & RME96_RCR_IRQ_2) {
- writel(0, rme96->iobase + RME96_IO_CONFIRM_REC_IRQ);
- }
- rme96->wcreg &= ~RME96_WCR_START_2;
- writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
-}
static irqreturn_t
snd_rme96_interrupt(int irq,
struct rme96 *rme96 = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
+ snd_pcm_set_sync(substream);
spin_lock_irq(&rme96->lock);
if (rme96->playback_substream != NULL) {
spin_unlock_irq(&rme96->lock);
struct rme96 *rme96 = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
+ snd_pcm_set_sync(substream);
runtime->hw = snd_rme96_capture_spdif_info;
if (snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
(rate = snd_rme96_capture_getrate(rme96, &isadat)) > 0)
struct rme96 *rme96 = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
+ snd_pcm_set_sync(substream);
spin_lock_irq(&rme96->lock);
if (rme96->playback_substream != NULL) {
spin_unlock_irq(&rme96->lock);
struct rme96 *rme96 = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
+ snd_pcm_set_sync(substream);
runtime->hw = snd_rme96_capture_adat_info;
if (snd_rme96_getinputtype(rme96) == RME96_INPUT_ANALOG) {
/* makes no sense to use analog input. Note that analog
spin_lock_irq(&rme96->lock);
if (RME96_ISPLAYING(rme96)) {
- snd_rme96_playback_stop(rme96);
+ snd_rme96_trigger(rme96, RME96_STOP_PLAYBACK);
}
rme96->playback_substream = NULL;
rme96->playback_periodsize = 0;
spin_lock_irq(&rme96->lock);
if (RME96_ISRECORDING(rme96)) {
- snd_rme96_capture_stop(rme96);
+ snd_rme96_trigger(rme96, RME96_STOP_CAPTURE);
}
rme96->capture_substream = NULL;
rme96->capture_periodsize = 0;
spin_lock_irq(&rme96->lock);
if (RME96_ISPLAYING(rme96)) {
- snd_rme96_playback_stop(rme96);
+ snd_rme96_trigger(rme96, RME96_STOP_PLAYBACK);
}
writel(0, rme96->iobase + RME96_IO_RESET_PLAY_POS);
spin_unlock_irq(&rme96->lock);
spin_lock_irq(&rme96->lock);
if (RME96_ISRECORDING(rme96)) {
- snd_rme96_capture_stop(rme96);
+ snd_rme96_trigger(rme96, RME96_STOP_CAPTURE);
}
writel(0, rme96->iobase + RME96_IO_RESET_REC_POS);
spin_unlock_irq(&rme96->lock);
int cmd)
{
struct rme96 *rme96 = snd_pcm_substream_chip(substream);
+ struct snd_pcm_substream *s;
+ bool sync;
+
+ snd_pcm_group_for_each_entry(s, substream) {
+ if (snd_pcm_substream_chip(s) == rme96)
+ snd_pcm_trigger_done(s, substream);
+ }
+
+ sync = (rme96->playback_substream && rme96->capture_substream) &&
+ (rme96->playback_substream->group ==
+ rme96->capture_substream->group);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
if (!RME96_ISPLAYING(rme96)) {
- if (substream != rme96->playback_substream) {
+ if (substream != rme96->playback_substream)
return -EBUSY;
- }
- snd_rme96_playback_start(rme96, 0);
+ snd_rme96_trigger(rme96, sync ? RME96_START_BOTH
+ : RME96_START_PLAYBACK);
}
break;
+ case SNDRV_PCM_TRIGGER_SUSPEND:
case SNDRV_PCM_TRIGGER_STOP:
if (RME96_ISPLAYING(rme96)) {
- if (substream != rme96->playback_substream) {
+ if (substream != rme96->playback_substream)
return -EBUSY;
- }
- snd_rme96_playback_stop(rme96);
+ snd_rme96_trigger(rme96, sync ? RME96_STOP_BOTH
+ : RME96_STOP_PLAYBACK);
}
break;
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
- if (RME96_ISPLAYING(rme96)) {
- snd_rme96_playback_stop(rme96);
- }
+ if (RME96_ISPLAYING(rme96))
+ snd_rme96_trigger(rme96, sync ? RME96_STOP_BOTH
+ : RME96_STOP_PLAYBACK);
break;
+ case SNDRV_PCM_TRIGGER_RESUME:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
- if (!RME96_ISPLAYING(rme96)) {
- snd_rme96_playback_start(rme96, 1);
- }
+ if (!RME96_ISPLAYING(rme96))
+ snd_rme96_trigger(rme96, sync ? RME96_RESUME_BOTH
+ : RME96_RESUME_PLAYBACK);
break;
-
+
default:
return -EINVAL;
}
+
return 0;
}
int cmd)
{
struct rme96 *rme96 = snd_pcm_substream_chip(substream);
+ struct snd_pcm_substream *s;
+ bool sync;
+
+ snd_pcm_group_for_each_entry(s, substream) {
+ if (snd_pcm_substream_chip(s) == rme96)
+ snd_pcm_trigger_done(s, substream);
+ }
+
+ sync = (rme96->playback_substream && rme96->capture_substream) &&
+ (rme96->playback_substream->group ==
+ rme96->capture_substream->group);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
if (!RME96_ISRECORDING(rme96)) {
- if (substream != rme96->capture_substream) {
+ if (substream != rme96->capture_substream)
return -EBUSY;
- }
- snd_rme96_capture_start(rme96, 0);
+ snd_rme96_trigger(rme96, sync ? RME96_START_BOTH
+ : RME96_START_CAPTURE);
}
break;
+ case SNDRV_PCM_TRIGGER_SUSPEND:
case SNDRV_PCM_TRIGGER_STOP:
if (RME96_ISRECORDING(rme96)) {
- if (substream != rme96->capture_substream) {
+ if (substream != rme96->capture_substream)
return -EBUSY;
- }
- snd_rme96_capture_stop(rme96);
+ snd_rme96_trigger(rme96, sync ? RME96_STOP_BOTH
+ : RME96_STOP_CAPTURE);
}
break;
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
- if (RME96_ISRECORDING(rme96)) {
- snd_rme96_capture_stop(rme96);
- }
+ if (RME96_ISRECORDING(rme96))
+ snd_rme96_trigger(rme96, sync ? RME96_STOP_BOTH
+ : RME96_STOP_CAPTURE);
break;
+ case SNDRV_PCM_TRIGGER_RESUME:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
- if (!RME96_ISRECORDING(rme96)) {
- snd_rme96_capture_start(rme96, 1);
- }
+ if (!RME96_ISRECORDING(rme96))
+ snd_rme96_trigger(rme96, sync ? RME96_RESUME_BOTH
+ : RME96_RESUME_CAPTURE);
break;
-
+
default:
return -EINVAL;
}
return;
}
if (rme96->irq >= 0) {
- snd_rme96_playback_stop(rme96);
- snd_rme96_capture_stop(rme96);
+ snd_rme96_trigger(rme96, RME96_STOP_BOTH);
rme96->areg &= ~RME96_AR_DAC_EN;
writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
free_irq(rme96->irq, (void *)rme96);
pci_release_regions(rme96->pci);
rme96->port = 0;
}
+#ifdef CONFIG_PM
+ vfree(rme96->playback_suspend_buffer);
+ vfree(rme96->capture_suspend_buffer);
+#endif
pci_disable_device(rme96->pci);
}
rme96->capture_periodsize = 0;
/* make sure playback/capture is stopped, if by some reason active */
- snd_rme96_playback_stop(rme96);
- snd_rme96_capture_stop(rme96);
+ snd_rme96_trigger(rme96, RME96_STOP_BOTH);
/* set default values in registers */
rme96->wcreg =
* Card initialisation
*/
+#ifdef CONFIG_PM
+
+static int
+snd_rme96_suspend(struct pci_dev *pci,
+ pm_message_t state)
+{
+ struct snd_card *card = pci_get_drvdata(pci);
+ struct rme96 *rme96 = card->private_data;
+
+ snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
+ snd_pcm_suspend(rme96->playback_substream);
+ snd_pcm_suspend(rme96->capture_substream);
+
+ /* save capture & playback pointers */
+ rme96->playback_pointer = readl(rme96->iobase + RME96_IO_GET_PLAY_POS)
+ & RME96_RCR_AUDIO_ADDR_MASK;
+ rme96->capture_pointer = readl(rme96->iobase + RME96_IO_GET_REC_POS)
+ & RME96_RCR_AUDIO_ADDR_MASK;
+
+ /* save playback and capture buffers */
+ memcpy_fromio(rme96->playback_suspend_buffer,
+ rme96->iobase + RME96_IO_PLAY_BUFFER, RME96_BUFFER_SIZE);
+ memcpy_fromio(rme96->capture_suspend_buffer,
+ rme96->iobase + RME96_IO_REC_BUFFER, RME96_BUFFER_SIZE);
+
+ /* disable the DAC */
+ rme96->areg &= ~RME96_AR_DAC_EN;
+ writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
+
+ pci_disable_device(pci);
+ pci_save_state(pci);
+
+ return 0;
+}
+
+static int
+snd_rme96_resume(struct pci_dev *pci)
+{
+ struct snd_card *card = pci_get_drvdata(pci);
+ struct rme96 *rme96 = card->private_data;
+
+ pci_restore_state(pci);
+ if (pci_enable_device(pci) < 0) {
+ printk(KERN_ERR "rme96: pci_enable_device failed, disabling device\n");
+ snd_card_disconnect(card);
+ return -EIO;
+ }
+
+ /* reset playback and record buffer pointers */
+ writel(0, rme96->iobase + RME96_IO_SET_PLAY_POS
+ + rme96->playback_pointer);
+ writel(0, rme96->iobase + RME96_IO_SET_REC_POS
+ + rme96->capture_pointer);
+
+ /* restore playback and capture buffers */
+ memcpy_toio(rme96->iobase + RME96_IO_PLAY_BUFFER,
+ rme96->playback_suspend_buffer, RME96_BUFFER_SIZE);
+ memcpy_toio(rme96->iobase + RME96_IO_REC_BUFFER,
+ rme96->capture_suspend_buffer, RME96_BUFFER_SIZE);
+
+ /* reset the ADC */
+ writel(rme96->areg | RME96_AR_PD2,
+ rme96->iobase + RME96_IO_ADDITIONAL_REG);
+ writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
+
+ /* reset and enable DAC, restore analog volume */
+ snd_rme96_reset_dac(rme96);
+ rme96->areg |= RME96_AR_DAC_EN;
+ writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
+ if (RME96_HAS_ANALOG_OUT(rme96)) {
+ usleep_range(3000, 10000);
+ snd_rme96_apply_dac_volume(rme96);
+ }
+
+ snd_power_change_state(card, SNDRV_CTL_POWER_D0);
+
+ return 0;
+}
+
+#endif
+
static void snd_rme96_card_free(struct snd_card *card)
{
snd_rme96_free(card->private_data);
return err;
}
+#ifdef CONFIG_PM
+ rme96->playback_suspend_buffer = vmalloc(RME96_BUFFER_SIZE);
+ if (!rme96->playback_suspend_buffer) {
+ snd_printk(KERN_ERR
+ "Failed to allocate playback suspend buffer!\n");
+ snd_card_free(card);
+ return -ENOMEM;
+ }
+ rme96->capture_suspend_buffer = vmalloc(RME96_BUFFER_SIZE);
+ if (!rme96->capture_suspend_buffer) {
+ snd_printk(KERN_ERR
+ "Failed to allocate capture suspend buffer!\n");
+ snd_card_free(card);
+ return -ENOMEM;
+ }
+#endif
+
strcpy(card->driver, "Digi96");
switch (rme96->pci->device) {
case PCI_DEVICE_ID_RME_DIGI96:
.id_table = snd_rme96_ids,
.probe = snd_rme96_probe,
.remove = snd_rme96_remove,
+#ifdef CONFIG_PM
+ .suspend = snd_rme96_suspend,
+ .resume = snd_rme96_resume,
+#endif
};
module_pci_driver(rme96_driver);
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