[ALSA] oxygen: add PM support
Add suspend/resume support.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
diff --git a/sound/pci/oxygen/hifier.c b/sound/pci/oxygen/hifier.c
index 6e45a58..7442460 100644
--- a/sound/pci/oxygen/hifier.c
+++ b/sound/pci/oxygen/hifier.c
@@ -146,6 +146,7 @@
.init = hifier_init,
.control_filter = hifier_control_filter,
.cleanup = hifier_cleanup,
+ .resume = hifier_registers_init,
.set_dac_params = set_ak4396_params,
.set_adc_params = set_cs5340_params,
.update_dac_volume = update_ak4396_volume,
@@ -186,6 +187,10 @@
.id_table = hifier_ids,
.probe = hifier_probe,
.remove = __devexit_p(oxygen_pci_remove),
+#ifdef CONFIG_PM
+ .suspend = oxygen_pci_suspend,
+ .resume = oxygen_pci_resume,
+#endif
};
static int __init alsa_card_hifier_init(void)
diff --git a/sound/pci/oxygen/oxygen.c b/sound/pci/oxygen/oxygen.c
index 800ae30..7c8ae31 100644
--- a/sound/pci/oxygen/oxygen.c
+++ b/sound/pci/oxygen/oxygen.c
@@ -192,6 +192,12 @@
{
}
+static void generic_resume(struct oxygen *chip)
+{
+ ak4396_registers_init(chip);
+ wm8785_registers_init(chip);
+}
+
static void set_ak4396_params(struct oxygen *chip,
struct snd_pcm_hw_params *params)
{
@@ -278,6 +284,7 @@
.owner = THIS_MODULE,
.init = generic_init,
.cleanup = generic_cleanup,
+ .resume = generic_resume,
.set_dac_params = set_ak4396_params,
.set_adc_params = set_wm8785_params,
.update_dac_volume = update_ak4396_volume,
@@ -305,6 +312,7 @@
.owner = THIS_MODULE,
.init = meridian_init,
.cleanup = generic_cleanup,
+ .resume = ak4396_registers_init,
.set_dac_params = set_ak4396_params,
.set_adc_params = set_ak5385_params,
.update_dac_volume = update_ak4396_volume,
@@ -353,6 +361,10 @@
.id_table = oxygen_ids,
.probe = generic_oxygen_probe,
.remove = __devexit_p(oxygen_pci_remove),
+#ifdef CONFIG_PM
+ .suspend = oxygen_pci_suspend,
+ .resume = oxygen_pci_resume,
+#endif
};
static int __init alsa_card_oxygen_init(void)
diff --git a/sound/pci/oxygen/oxygen.h b/sound/pci/oxygen/oxygen.h
index 29c9fa4..74a6448 100644
--- a/sound/pci/oxygen/oxygen.h
+++ b/sound/pci/oxygen/oxygen.h
@@ -97,6 +97,8 @@
int (*control_filter)(struct snd_kcontrol_new *template);
int (*mixer_init)(struct oxygen *chip);
void (*cleanup)(struct oxygen *chip);
+ void (*suspend)(struct oxygen *chip);
+ void (*resume)(struct oxygen *chip);
void (*pcm_hardware_filter)(unsigned int channel,
struct snd_pcm_hardware *hardware);
void (*set_dac_params)(struct oxygen *chip,
@@ -125,6 +127,10 @@
int oxygen_pci_probe(struct pci_dev *pci, int index, char *id,
const struct oxygen_model *model);
void oxygen_pci_remove(struct pci_dev *pci);
+#ifdef CONFIG_PM
+int oxygen_pci_suspend(struct pci_dev *pci, pm_message_t state);
+int oxygen_pci_resume(struct pci_dev *pci);
+#endif
/* oxygen_mixer.c */
diff --git a/sound/pci/oxygen/oxygen_lib.c b/sound/pci/oxygen/oxygen_lib.c
index 60bc159..22f3785 100644
--- a/sound/pci/oxygen/oxygen_lib.c
+++ b/sound/pci/oxygen/oxygen_lib.c
@@ -314,6 +314,10 @@
OXYGEN_SPDIF_LOCK_MASK |
OXYGEN_SPDIF_RATE_MASK);
oxygen_write32(chip, OXYGEN_SPDIF_OUTPUT_BITS, chip->spdif_bits);
+ oxygen_write16(chip, OXYGEN_2WIRE_BUS_STATUS,
+ OXYGEN_2WIRE_LENGTH_8 |
+ OXYGEN_2WIRE_INTERRUPT_MASK |
+ OXYGEN_2WIRE_SPEED_STANDARD);
oxygen_clear_bits8(chip, OXYGEN_MPU401_CONTROL, OXYGEN_MPU401_LOOPBACK);
oxygen_write8(chip, OXYGEN_GPI_INTERRUPT_MASK, 0);
oxygen_write16(chip, OXYGEN_GPIO_INTERRUPT_MASK, 0);
@@ -534,3 +538,99 @@
pci_set_drvdata(pci, NULL);
}
EXPORT_SYMBOL(oxygen_pci_remove);
+
+#ifdef CONFIG_PM
+int oxygen_pci_suspend(struct pci_dev *pci, pm_message_t state)
+{
+ struct snd_card *card = pci_get_drvdata(pci);
+ struct oxygen *chip = card->private_data;
+ unsigned int i, saved_interrupt_mask;
+
+ snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
+
+ for (i = 0; i < PCM_COUNT; ++i)
+ if (chip->streams[i])
+ snd_pcm_suspend(chip->streams[i]);
+
+ if (chip->model->suspend)
+ chip->model->suspend(chip);
+
+ spin_lock_irq(&chip->reg_lock);
+ saved_interrupt_mask = chip->interrupt_mask;
+ chip->interrupt_mask = 0;
+ oxygen_write16(chip, OXYGEN_DMA_STATUS, 0);
+ oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, 0);
+ spin_unlock_irq(&chip->reg_lock);
+
+ synchronize_irq(chip->irq);
+ flush_scheduled_work();
+ chip->interrupt_mask = saved_interrupt_mask;
+
+ pci_disable_device(pci);
+ pci_save_state(pci);
+ pci_set_power_state(pci, pci_choose_state(pci, state));
+ return 0;
+}
+EXPORT_SYMBOL(oxygen_pci_suspend);
+
+static const u32 registers_to_restore[OXYGEN_IO_SIZE / 32] = {
+ 0xffffffff, 0x00ff077f, 0x00011d08, 0x007f00ff,
+ 0x00300000, 0x00000fe4, 0x0ff7001f, 0x00000000
+};
+static const u32 ac97_registers_to_restore[2][0x40 / 32] = {
+ { 0x18284fa2, 0x03060000 },
+ { 0x00007fa6, 0x00200000 }
+};
+
+static inline int is_bit_set(const u32 *bitmap, unsigned int bit)
+{
+ return bitmap[bit / 32] & (1 << (bit & 31));
+}
+
+static void oxygen_restore_ac97(struct oxygen *chip, unsigned int codec)
+{
+ unsigned int i;
+
+ oxygen_write_ac97(chip, codec, AC97_RESET, 0);
+ msleep(1);
+ for (i = 1; i < 0x40; ++i)
+ if (is_bit_set(ac97_registers_to_restore[codec], i))
+ oxygen_write_ac97(chip, codec, i * 2,
+ chip->saved_ac97_registers[codec][i]);
+}
+
+int oxygen_pci_resume(struct pci_dev *pci)
+{
+ struct snd_card *card = pci_get_drvdata(pci);
+ struct oxygen *chip = card->private_data;
+ unsigned int i;
+
+ pci_set_power_state(pci, PCI_D0);
+ pci_restore_state(pci);
+ if (pci_enable_device(pci) < 0) {
+ snd_printk(KERN_ERR "cannot reenable device");
+ snd_card_disconnect(card);
+ return -EIO;
+ }
+ pci_set_master(pci);
+
+ oxygen_write16(chip, OXYGEN_DMA_STATUS, 0);
+ oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, 0);
+ for (i = 0; i < OXYGEN_IO_SIZE; ++i)
+ if (is_bit_set(registers_to_restore, i))
+ oxygen_write8(chip, i, chip->saved_registers._8[i]);
+ if (chip->has_ac97_0)
+ oxygen_restore_ac97(chip, 0);
+ if (chip->has_ac97_1)
+ oxygen_restore_ac97(chip, 1);
+
+ if (chip->model->resume)
+ chip->model->resume(chip);
+
+ oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, chip->interrupt_mask);
+
+ snd_power_change_state(card, SNDRV_CTL_POWER_D0);
+ return 0;
+}
+EXPORT_SYMBOL(oxygen_pci_resume);
+#endif /* CONFIG_PM */
diff --git a/sound/pci/oxygen/oxygen_pcm.c b/sound/pci/oxygen/oxygen_pcm.c
index b17c405..9680aa3 100644
--- a/sound/pci/oxygen/oxygen_pcm.c
+++ b/sound/pci/oxygen/oxygen_pcm.c
@@ -517,6 +517,7 @@
switch (cmd) {
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
pausing = 0;
break;
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
diff --git a/sound/pci/oxygen/virtuoso.c b/sound/pci/oxygen/virtuoso.c
index abd5313..9a2c16b 100644
--- a/sound/pci/oxygen/virtuoso.c
+++ b/sound/pci/oxygen/virtuoso.c
@@ -359,6 +359,18 @@
oxygen_clear_bits8(chip, OXYGEN_FUNCTION, OXYGEN_FUNCTION_RESET_CODEC);
}
+static void xonar_d2_resume(struct oxygen *chip)
+{
+ pcm1796_init(chip);
+ xonar_enable_output(chip);
+}
+
+static void xonar_dx_resume(struct oxygen *chip)
+{
+ cs43xx_init(chip);
+ xonar_enable_output(chip);
+}
+
static void set_pcm1796_params(struct oxygen *chip,
struct snd_pcm_hw_params *params)
{
@@ -551,6 +563,8 @@
.control_filter = xonar_d2_control_filter,
.mixer_init = xonar_mixer_init,
.cleanup = xonar_cleanup,
+ .suspend = xonar_cleanup,
+ .resume = xonar_d2_resume,
.set_dac_params = set_pcm1796_params,
.set_adc_params = set_cs53x1_params,
.update_dac_volume = update_pcm1796_volume,
@@ -579,6 +593,8 @@
.control_filter = xonar_d2_control_filter,
.mixer_init = xonar_mixer_init,
.cleanup = xonar_cleanup,
+ .suspend = xonar_cleanup,
+ .resume = xonar_d2_resume,
.set_dac_params = set_pcm1796_params,
.set_adc_params = set_cs53x1_params,
.update_dac_volume = update_pcm1796_volume,
@@ -608,6 +624,8 @@
.control_filter = xonar_dx_control_filter,
.mixer_init = xonar_dx_mixer_init,
.cleanup = xonar_dx_cleanup,
+ .suspend = xonar_dx_cleanup,
+ .resume = xonar_dx_resume,
.set_dac_params = set_cs43xx_params,
.set_adc_params = set_cs53x1_params,
.update_dac_volume = update_cs43xx_volume,
@@ -652,6 +670,10 @@
.id_table = xonar_ids,
.probe = xonar_probe,
.remove = __devexit_p(oxygen_pci_remove),
+#ifdef CONFIG_PM
+ .suspend = oxygen_pci_suspend,
+ .resume = oxygen_pci_resume,
+#endif
};
static int __init alsa_card_xonar_init(void)