IA32 Port I/O API

Collaboration diagram for IA32 Port I/O API:

Functions
l4_uint8_t	l4util_in8 (l4_uint16_t port)
	Read byte from I/O port.
l4_uint16_t	l4util_in16 (l4_uint16_t port)
	Read 16-bit-value from I/O port.
l4_uint32_t	l4util_in32 (l4_uint16_t port)
	Read 32-bit-value from I/O port.
void	l4util_ins8 (l4_uint16_t port, l4_umword_t addr, l4_umword_t count)
	Read a block of 8-bit-values from I/O ports.
void	l4util_ins16 (l4_uint16_t port, l4_umword_t addr, l4_umword_t count)
	Read a block of 16-bit-values from I/O ports.
void	l4util_ins32 (l4_uint16_t port, l4_umword_t addr, l4_umword_t count)
	Read a block of 32-bit-values from I/O ports.
void	l4util_out8 (l4_uint8_t value, l4_uint16_t port)
	Write byte to I/O port.
void	l4util_out16 (l4_uint16_t value, l4_uint16_t port)
	Write 16-bit-value to I/O port.
void	l4util_out32 (l4_uint32_t value, l4_uint16_t port)
	Write 32-bit-value to I/O port.
void	l4util_outs8 (l4_uint16_t port, l4_umword_t addr, l4_umword_t count)
	Write a block of bytes to I/O port.
void	l4util_outs16 (l4_uint16_t port, l4_umword_t addr, l4_umword_t count)
	Write a block of 16-bit-values to I/O port.
void	l4util_outs32 (l4_uint16_t port, l4_umword_t addr, l4_umword_t count)
	Write block of 32-bit-values to I/O port.
void	l4util_iodelay (void)
	delay I/O port access by writing to port 0x80

Detailed Description

Function Documentation

l4util_in16()

l4_uint16_t l4util_in16 ( l4_uint16_t  port )

inline

Read 16-bit-value from I/O port.

Parameters

port	I/O port address

Returns

value

Definition at line 180 of file port_io.h.

l4util_in32()

l4_uint32_t l4util_in32 ( l4_uint16_t  port )

inline

Read 32-bit-value from I/O port.

Parameters

port	I/O port address

Returns

value

Definition at line 188 of file port_io.h.

l4util_in8()

l4_uint8_t l4util_in8 ( l4_uint16_t  port )

inline

Read byte from I/O port.

Parameters

port	I/O port address

Returns

value

Definition at line 172 of file port_io.h.

Referenced by l4util_irq_acknowledge().

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l4util_ins16()

void l4util_ins16 ( l4_uint16_t  port, l4_umword_t  addr, l4_umword_t  count  )

inline

Read a block of 16-bit-values from I/O ports.

Parameters

port	I/O port address
addr	address of buffer
count	number of I/O operations

Definition at line 205 of file port_io.h.

l4util_ins32()

void l4util_ins32 ( l4_uint16_t  port, l4_umword_t  addr, l4_umword_t  count  )

inline

Read a block of 32-bit-values from I/O ports.

Parameters

port	I/O port address
addr	address of buffer
count	number of I/O operations

Definition at line 214 of file port_io.h.

l4util_ins8()

void l4util_ins8 ( l4_uint16_t  port, l4_umword_t  addr, l4_umword_t  count  )

inline

Read a block of 8-bit-values from I/O ports.

Parameters

port	I/O port address
addr	address of buffer
count	number of I/O operations

Definition at line 196 of file port_io.h.

l4util_out16()

void l4util_out16 ( l4_uint16_t  value, l4_uint16_t  port  )

inline

Write 16-bit-value to I/O port.

Parameters

port	I/O port address
value	value to write

Definition at line 229 of file port_io.h.

l4util_out32()

void l4util_out32 ( l4_uint32_t  value, l4_uint16_t  port  )

inline

Write 32-bit-value to I/O port.

Parameters

port	I/O port address
value	value to write

Definition at line 235 of file port_io.h.

l4util_out8()

void l4util_out8 ( l4_uint8_t  value, l4_uint16_t  port  )

inline

Write byte to I/O port.

Parameters

port	I/O port address
value	value to write

Definition at line 223 of file port_io.h.

Referenced by l4util_irq_acknowledge().

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l4util_outs16()

void l4util_outs16 ( l4_uint16_t  port, l4_umword_t  addr, l4_umword_t  count  )

inline

Write a block of 16-bit-values to I/O port.

Parameters

port	I/O port address
addr	address of buffer
count	number of I/O operations

Definition at line 250 of file port_io.h.

l4util_outs32()

void l4util_outs32 ( l4_uint16_t  port, l4_umword_t  addr, l4_umword_t  count  )

inline

Write block of 32-bit-values to I/O port.

Parameters

port	I/O port address
addr	address of buffer
count	number of I/O operations

Definition at line 259 of file port_io.h.

l4util_outs8()

void l4util_outs8 ( l4_uint16_t  port, l4_umword_t  addr, l4_umword_t  count  )

inline

Write a block of bytes to I/O port.

Parameters

port	I/O port address
addr	address of buffer
count	number of I/O operations

Definition at line 241 of file port_io.h.