sgio2audio.c File Reference

#include <linux/init.h>
#include <linux/delay.h>
#include <linux/spinlock.h>
#include <linux/interrupt.h>
#include <linux/dma-mapping.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <asm/ip32/ip32_ints.h>
#include <asm/ip32/mace.h>
#include <sound/core.h>
#include <sound/control.h>
#include <sound/pcm.h>
#include <sound/initval.h>
#include <sound/ad1843.h>

Go to the source code of this file.

Data Structures
struct	snd_sgio2audio_chan
struct	snd_sgio2audio

Macros
#define	SNDRV_GET_ID
#define	AUDIO_CONTROL_RESET   BIT(0) /* 1: reset audio interface */
#define	AUDIO_CONTROL_CODEC_PRESENT   BIT(1) /* 1: codec detected */
#define	CODEC_CONTROL_WORD_SHIFT   0
#define	CODEC_CONTROL_READ   BIT(16)
#define	CODEC_CONTROL_ADDRESS_SHIFT   17
#define	CHANNEL_CONTROL_RESET   BIT(10) /* 1: reset channel */
#define	CHANNEL_DMA_ENABLE   BIT(9) /* 1: enable DMA transfer */
#define	CHANNEL_INT_THRESHOLD_DISABLED   (0 << 5) /* interrupt disabled */
#define	CHANNEL_INT_THRESHOLD_25   (1 << 5) /* int on buffer >25% full */
#define	CHANNEL_INT_THRESHOLD_50   (2 << 5) /* int on buffer >50% full */
#define	CHANNEL_INT_THRESHOLD_75   (3 << 5) /* int on buffer >75% full */
#define	CHANNEL_INT_THRESHOLD_EMPTY   (4 << 5) /* int on buffer empty */
#define	CHANNEL_INT_THRESHOLD_NOT_EMPTY   (5 << 5) /* int on buffer !empty */
#define	CHANNEL_INT_THRESHOLD_FULL   (6 << 5) /* int on buffer empty */
#define	CHANNEL_INT_THRESHOLD_NOT_FULL   (7 << 5) /* int on buffer !empty */
#define	CHANNEL_RING_SHIFT   12
#define	CHANNEL_RING_SIZE   (1 << CHANNEL_RING_SHIFT)
#define	CHANNEL_RING_MASK   (CHANNEL_RING_SIZE - 1)
#define	CHANNEL_LEFT_SHIFT   40
#define	CHANNEL_RIGHT_SHIFT   8

Functions
	MODULE_AUTHOR ("Vivien Chappelier <[email protected]>")
	MODULE_DESCRIPTION ("SGI O2 Audio")
	MODULE_LICENSE ("GPL")
	MODULE_SUPPORTED_DEVICE ("{{Silicon Graphics, O2 Audio}}")
	module_param (index, int, 0444)
	MODULE_PARM_DESC (index,"Index value for SGI O2 soundcard.")
	module_param (id, charp, 0444)
	MODULE_PARM_DESC (id,"ID string for SGI O2 soundcard.")
	module_platform_driver (sgio2audio_driver)

Macro Definition Documentation

#define AUDIO_CONTROL_CODEC_PRESENT   BIT(1) /* 1: codec detected */

Definition at line 61 of file sgio2audio.c.

#define AUDIO_CONTROL_RESET   BIT(0) /* 1: reset audio interface */

Definition at line 60 of file sgio2audio.c.

#define CHANNEL_CONTROL_RESET   BIT(10) /* 1: reset channel */

Definition at line 67 of file sgio2audio.c.

#define CHANNEL_DMA_ENABLE   BIT(9) /* 1: enable DMA transfer */

Definition at line 68 of file sgio2audio.c.

#define CHANNEL_INT_THRESHOLD_25   (1 << 5) /* int on buffer >25% full */

Definition at line 70 of file sgio2audio.c.

#define CHANNEL_INT_THRESHOLD_50   (2 << 5) /* int on buffer >50% full */

Definition at line 71 of file sgio2audio.c.

#define CHANNEL_INT_THRESHOLD_75   (3 << 5) /* int on buffer >75% full */

Definition at line 72 of file sgio2audio.c.

#define CHANNEL_INT_THRESHOLD_DISABLED   (0 << 5) /* interrupt disabled */

Definition at line 69 of file sgio2audio.c.

#define CHANNEL_INT_THRESHOLD_EMPTY   (4 << 5) /* int on buffer empty */

Definition at line 73 of file sgio2audio.c.

#define CHANNEL_INT_THRESHOLD_FULL   (6 << 5) /* int on buffer empty */

Definition at line 75 of file sgio2audio.c.

#define CHANNEL_INT_THRESHOLD_NOT_EMPTY   (5 << 5) /* int on buffer !empty */

Definition at line 74 of file sgio2audio.c.

#define CHANNEL_INT_THRESHOLD_NOT_FULL   (7 << 5) /* int on buffer !empty */

Definition at line 76 of file sgio2audio.c.

#define CHANNEL_LEFT_SHIFT   40

Definition at line 82 of file sgio2audio.c.

#define CHANNEL_RIGHT_SHIFT   8

Definition at line 83 of file sgio2audio.c.

#define CHANNEL_RING_MASK   (CHANNEL_RING_SIZE - 1)

Definition at line 80 of file sgio2audio.c.

#define CHANNEL_RING_SHIFT   12

Definition at line 78 of file sgio2audio.c.

#define CHANNEL_RING_SIZE   (1 << CHANNEL_RING_SHIFT)

Definition at line 79 of file sgio2audio.c.

#define CODEC_CONTROL_ADDRESS_SHIFT   17

Definition at line 65 of file sgio2audio.c.

#define CODEC_CONTROL_READ   BIT(16)

Definition at line 64 of file sgio2audio.c.

#define CODEC_CONTROL_WORD_SHIFT   0

Definition at line 63 of file sgio2audio.c.

#define SNDRV_GET_ID

Definition at line 41 of file sgio2audio.c.

Function Documentation

MODULE_AUTHOR

(

"Vivien Chappelier <[email protected]>"

)

MODULE_DESCRIPTION

(

"SGI O2 Audio"

)

MODULE_LICENSE

(

"GPL"

)

module_param	(	index	,
		int	,
		0444
	)

module_param	(	id	,
		charp	,
		0444
	)

MODULE_PARM_DESC	(	index	,
		"Index value for SGI O2 soundcard."
	)

MODULE_PARM_DESC	(	id	,
		"ID string for SGI O2 soundcard."
	)

module_platform_driver

(

sgio2audio_driver

)

MODULE_SUPPORTED_DEVICE

(

"{{Silicon Graphics, O2 Audio}}"

)

Variable Documentation

const char* desc

Definition at line 767 of file sgio2audio.c.

int idx

Definition at line 764 of file sgio2audio.c.

int irq

Definition at line 765 of file sgio2audio.c.

irqreturn_t(* isr)(int, void *)

Definition at line 766 of file sgio2audio.c.