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path: root/sound/pci/cs5535audio/cs5535audio.h
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Diffstat (limited to 'sound/pci/cs5535audio/cs5535audio.h')
-rw-r--r--sound/pci/cs5535audio/cs5535audio.h139
1 files changed, 139 insertions, 0 deletions
diff --git a/sound/pci/cs5535audio/cs5535audio.h b/sound/pci/cs5535audio/cs5535audio.h
new file mode 100644
index 000000000..0579daa62
--- /dev/null
+++ b/sound/pci/cs5535audio/cs5535audio.h
@@ -0,0 +1,139 @@
+#ifndef __SOUND_CS5535AUDIO_H
+#define __SOUND_CS5535AUDIO_H
+
+#define cs_writel(cs5535au, reg, val) outl(val, (cs5535au)->port + reg)
+#define cs_writeb(cs5535au, reg, val) outb(val, (cs5535au)->port + reg)
+#define cs_readl(cs5535au, reg) inl((cs5535au)->port + reg)
+#define cs_readw(cs5535au, reg) inw((cs5535au)->port + reg)
+#define cs_readb(cs5535au, reg) inb((cs5535au)->port + reg)
+
+#define CS5535AUDIO_MAX_DESCRIPTORS 128
+
+/* acc_codec bar0 reg addrs */
+#define ACC_GPIO_STATUS 0x00
+#define ACC_CODEC_STATUS 0x08
+#define ACC_CODEC_CNTL 0x0C
+#define ACC_IRQ_STATUS 0x12
+#define ACC_BM0_CMD 0x20
+#define ACC_BM1_CMD 0x28
+#define ACC_BM0_PRD 0x24
+#define ACC_BM1_PRD 0x2C
+#define ACC_BM0_STATUS 0x21
+#define ACC_BM1_STATUS 0x29
+#define ACC_BM0_PNTR 0x60
+#define ACC_BM1_PNTR 0x64
+
+/* acc_codec bar0 reg bits */
+/* ACC_IRQ_STATUS */
+#define IRQ_STS 0
+#define WU_IRQ_STS 1
+#define BM0_IRQ_STS 2
+#define BM1_IRQ_STS 3
+/* ACC_BMX_STATUS */
+#define EOP (1<<0)
+#define BM_EOP_ERR (1<<1)
+/* ACC_BMX_CTL */
+#define BM_CTL_EN 0x01
+#define BM_CTL_PAUSE 0x03
+#define BM_CTL_DIS 0x00
+#define BM_CTL_BYTE_ORD_LE 0x00
+#define BM_CTL_BYTE_ORD_BE 0x04
+/* cs5535 specific ac97 codec register defines */
+#define CMD_MASK 0xFF00FFFF
+#define CMD_NEW 0x00010000
+#define STS_NEW 0x00020000
+#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
+
+enum { CS5535AUDIO_DMA_PLAYBACK, CS5535AUDIO_DMA_CAPTURE, NUM_CS5535AUDIO_DMAS };
+
+struct cs5535audio;
+
+struct cs5535audio_dma_ops {
+ int type;
+ void (*enable_dma)(struct cs5535audio *cs5535au);
+ 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);
+};
+
+struct cs5535audio_dma_desc {
+ u32 addr;
+ u16 size;
+ u16 ctlreserved;
+};
+
+struct cs5535audio_dma {
+ const struct cs5535audio_dma_ops *ops;
+ struct snd_dma_buffer desc_buf;
+ struct snd_pcm_substream *substream;
+ unsigned int buf_addr, buf_bytes;
+ unsigned int period_bytes, periods;
+ u32 saved_prd;
+ int pcm_open_flag;
+};
+
+struct cs5535audio {
+ struct snd_card *card;
+ struct snd_ac97 *ac97;
+ struct snd_pcm *pcm;
+ int irq;
+ struct pci_dev *pci;
+ unsigned long port;
+ spinlock_t reg_lock;
+ struct snd_pcm_substream *playback_substream;
+ struct snd_pcm_substream *capture_substream;
+ struct cs5535audio_dma dmas[NUM_CS5535AUDIO_DMAS];
+};
+
+extern const struct dev_pm_ops snd_cs5535audio_pm;
+
+#ifdef CONFIG_OLPC
+void olpc_prequirks(struct snd_card *card,
+ struct snd_ac97_template *ac97);
+int olpc_quirks(struct snd_card *card, struct snd_ac97 *ac97);
+void olpc_quirks_cleanup(void);
+void olpc_analog_input(struct snd_ac97 *ac97, int on);
+void olpc_mic_bias(struct snd_ac97 *ac97, int on);
+
+static inline void olpc_capture_open(struct snd_ac97 *ac97)
+{
+ /* default to Analog Input off */
+ olpc_analog_input(ac97, 0);
+ /* enable MIC Bias for recording */
+ olpc_mic_bias(ac97, 1);
+}
+
+static inline void olpc_capture_close(struct snd_ac97 *ac97)
+{
+ /* disable Analog Input */
+ olpc_analog_input(ac97, 0);
+ /* disable the MIC Bias (so the recording LED turns off) */
+ olpc_mic_bias(ac97, 0);
+}
+#else
+static inline void olpc_prequirks(struct snd_card *card,
+ struct snd_ac97_template *ac97) { }
+static inline int olpc_quirks(struct snd_card *card, struct snd_ac97 *ac97)
+{
+ return 0;
+}
+static inline void olpc_quirks_cleanup(void) { }
+static inline void olpc_analog_input(struct snd_ac97 *ac97, int on) { }
+static inline void olpc_mic_bias(struct snd_ac97 *ac97, int on) { }
+static inline void olpc_capture_open(struct snd_ac97 *ac97) { }
+static inline void olpc_capture_close(struct snd_ac97 *ac97) { }
+#endif
+
+int snd_cs5535audio_pcm(struct cs5535audio *cs5535audio);
+
+#endif /* __SOUND_CS5535AUDIO_H */
+