IPMUX1IPMUX2IPMUX3: minte module

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minte module

详细描述

THE FORMAT is FOR DOXYGEN to Generate the document opulan.com.

作者:: stephanxu@sina.com

版本:: v0.2

日期:: June-29-2007 date description
----------------------------------------------------------------- June-29-2007 mainly from the old version and rewrite the opulan_read function.
July-05-2007 distill the interrupt handle way from the old ipmux driver module.
July-09-2007 change transfer global g_opl_chip_irq_pending to get_irq_pending() and clear_irq_pending().


模块
组	function_description(opl_minte.c)
#define	OPL_MINTE_MAJOR 120
#define	OPL_MINTE_DEVICE "opl_minte"
Macro definition
#define	opl_minte_hw0_irqexit ipmux_hw0_irqexit
#define	opl_minte_hw0_irqinit ipmux_hw0_irqinit
int	ipmux_hw0_irqinit (void)
	description: request the ipmux irq and enable the its intr.
void	ipmux_hw0_irqexit (void)
	description: free irq,and disable ipmux interrupt.
the variable and function imported.
u32	get_irq_pending (void)
void	clear_irq_pending (void)
void	ipmux_irq_enable (unsigned int irq)
void	ipmux_irq_disable (unsigned int irq)
local function declaration
int	opl_minte_open (struct inode inode, struct file filp)
int	opl_minte_release (struct inode inode, struct file filp)
ssize_t	opl_minte_read (struct file filp, char buffer, size_t length, loff_t *offset)
	description: copy the opl_chip_irq_pending(indicate which interrupt occured) to user App, which will handle its interrupt.if the no irq pending occured,the process will sleep until the isr wake up it.
ssize_t	opl_minte_write (struct file filp, const char buffer, size_t length, loff_t *offset)
	description: because the enable irq or disable irq will be in atomic mode,so it should be operated in kernel mode is correct.
the global variable declaration and definition.
u32	g_opl_chip_irq_event = 0
wait_queue_head_t	g_opl_chip_waitq
local variable declaration and definition
u32	opl_minte_open_count = 0
u32	opl_minte_is_open = 0
file_operations	opl_minte_fops

宏定义文档

#define OPL_MINTE_DEVICE "opl_minte"

在文件opl_minte.c第36行定义。

参考自 opl_minte_exit()及opl_minte_init().

#define opl_minte_hw0_irqexit ipmux_hw0_irqexit

在文件opl_minte.h第23行定义。

参考自 opl_minte_exit().

#define opl_minte_hw0_irqinit ipmux_hw0_irqinit

在文件opl_minte.h第24行定义。

参考自 opl_minte_init().

#define OPL_MINTE_MAJOR 120

在文件opl_minte.c第35行定义。

参考自 opl_minte_exit()及opl_minte_init().

函数文档

void clear_irq_pending

(

void

)

参考自 opl_minte_read().

u32 get_irq_pending

(

void

)

参考自 opl_minte_read().

void ipmux_hw0_irqexit

(

void

)

description: free irq,and disable ipmux interrupt.

参数:

void

返回:: NULL

参见:: ipmux_module_exit()

Deprecated:

在文件ipmux_interrupt.c第165行定义。

参考 OPL_IPMUX_IRQ、REG_INT_EN_ATB、REG_INT_EN_BRG、REG_INT_EN_DNTM、REG_INT_EN_IWF、REG_INT_EN_MC、REG_INT_EN_POS_UPT、REG_INT_EN_PPE、REG_INT_EN_UPTM及turn_off_level2_intr().

int ipmux_hw0_irqinit

(

void

)

description: request the ipmux irq and enable the its intr.

参数:

void

返回值:

	0	success
	-1	failure

参见:: ipmux_module_init

Deprecated:

在文件ipmux_interrupt.c第139行定义。

参考 intr_status、ipmux_interrupt_handler()、OPL_IPMUX_IRQ、REG_INT_EN_ATB、REG_INT_EN_BRG、REG_INT_EN_DNTM、REG_INT_EN_IWF、REG_INT_EN_MC、REG_INT_EN_POS_UPT、REG_INT_EN_PPE、REG_INT_EN_UPTM及turn_on_level2_intr().

void ipmux_irq_disable

(

unsigned int

irq

)

参考自 opl_host_ioctl()及opl_minte_write().

void ipmux_irq_enable

(

unsigned int

irq

)

参考自 opl_host_ioctl()及opl_minte_write().

int opl_minte_open	(	struct inode *	inode,
		struct file *	filp
	)	`[static]`

在文件opl_minte.c第163行定义。

参考 opl_minte_is_open及opl_minte_open_count.

ssize_t opl_minte_read	(	struct file *	filp,
		char *	buffer,
		size_t	length,
		loff_t *	offset
	)	`[static]`

description: copy the opl_chip_irq_pending(indicate which interrupt occured) to user App, which will handle its interrupt.if the no irq pending occured,the process will sleep until the isr wake up it.

参数:

	struct	file *filp
	char	*buffer
	size_t	length
	loff_t	offset

返回:: the length of bytes process read.

参见:: opl_minte_interrupt_handler

Deprecated:

在文件opl_minte.c第109行定义。

参考 clear_irq_pending()、g_opl_chip_irq_event、g_opl_chip_waitq、get_irq_pending()、opl_minte_is_open及u32.

int opl_minte_release	(	struct inode *	inode,
		struct file *	filp
	)	`[static]`

在文件opl_minte.c第172行定义。

参考 opl_minte_is_open及opl_minte_open_count.

ssize_t opl_minte_write	(	struct file *	filp,
		const char *	buffer,
		size_t	length,
		loff_t *	offset
	)	`[static]`

description: because the enable irq or disable irq will be in atomic mode,so it should be operated in kernel mode is correct.

the value in user *buffer it is the enable or disable. 1. enable 0. disable if the value is enable, to enble the ipmux interrupt, call the function in malta_int.c

参数:

	@param	const char *buffer: contain the value(0-disable or 1-enable).

返回值:

	0	is success
	!0	failure. the device is not open or copy *buf from user to kernel fails.

参见:

Deprecated:

在文件opl_minte.c第146行定义。

参考 ipmux_irq_disable()、ipmux_irq_enable()、OPL_IPMUX_IRQ及opl_minte_is_open.

变量文档

u32 g_opl_chip_irq_event = 0

在文件opl_minte.c第61行定义。

参考自 ipmux_interrupt_handler()及opl_minte_read().

wait_queue_head_t g_opl_chip_waitq

在文件opl_minte.c第62行定义。

参考自 ipmux_interrupt_handler()、opl_minte_init()及opl_minte_read().

struct file_operations opl_minte_fops

初始化序列：

 {
  .read = opl_minte_read,
  .write = opl_minte_write,
  .open = opl_minte_open,
  .release = opl_minte_release, 
}

在文件opl_minte.c第83行定义。

参考自 opl_minte_init().

u32 opl_minte_is_open = 0 [static]

在文件opl_minte.c第82行定义。

参考自 opl_minte_open()、opl_minte_read()、opl_minte_release()及opl_minte_write().

u32 opl_minte_open_count = 0 [static]

在文件opl_minte.c第81行定义。

参考自 opl_minte_open()及opl_minte_release().

Generated at Mon Jul 30 16:43:48 2007 for IPMUX1IPMUX2IPMUX3 by

1.3.9.1

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IPMUX1IPMUX2IPMUX3: minte module

minte module

详细描述

模块

Macro definition

the variable and function imported.

local function declaration

the global variable declaration and definition.

local variable declaration and definition

宏定义文档

函数文档

变量文档