[ALSA] PM support for cs5535audio
Appended is my patch adding PM support to the cs5535audio driver.
I also added the ac97 quirk but it's not yet confirmed which
boards need to be in the quirk list. The patch also includes some
Kconfig and misc cleanup.
Signed-off-by: Jaya Kumar <jayakumar.alsa@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/cs5535audio/cs5535audio.h b/sound/pci/cs5535audio/cs5535audio.h
index 5e55a1a..4fd1f31 100644
--- a/sound/pci/cs5535audio/cs5535audio.h
+++ b/sound/pci/cs5535audio/cs5535audio.h
@@ -74,6 +74,8 @@
#define PRM_RDY_STS 0x00800000
#define ACC_CODEC_CNTL_WR_CMD (~0x80000000)
#define ACC_CODEC_CNTL_RD_CMD 0x80000000
+#define ACC_CODEC_CNTL_LNK_SHUTDOWN 0x00040000
+#define ACC_CODEC_CNTL_LNK_WRM_RST 0x00020000
#define PRD_JMP 0x2000
#define PRD_EOP 0x4000
#define PRD_EOT 0x8000
@@ -88,6 +90,7 @@
void (*disable_dma)(struct cs5535audio *cs5535au);
void (*pause_dma)(struct cs5535audio *cs5535au);
void (*setup_prd)(struct cs5535audio *cs5535au, u32 prd_addr);
+ u32 (*read_prd)(struct cs5535audio *cs5535au);
u32 (*read_dma_pntr)(struct cs5535audio *cs5535au);
};
@@ -103,11 +106,14 @@
struct snd_pcm_substream *substream;
unsigned int buf_addr, buf_bytes;
unsigned int period_bytes, periods;
+ int suspended;
+ u32 saved_prd;
};
struct cs5535audio {
struct snd_card *card;
struct snd_ac97 *ac97;
+ struct snd_pcm *pcm;
int irq;
struct pci_dev *pci;
unsigned long port;
@@ -117,6 +123,8 @@
struct cs5535audio_dma dmas[NUM_CS5535AUDIO_DMAS];
};
+int snd_cs5535audio_suspend(struct pci_dev *pci, pm_message_t state);
+int snd_cs5535audio_resume(struct pci_dev *pci);
int __devinit snd_cs5535audio_pcm(struct cs5535audio *cs5535audio);
#endif /* __SOUND_CS5535AUDIO_H */