lp_gpio.c File Reference

#include <stdint.h>
#include <arch/io.h>
#include <device/pci_ops.h>
#include <device/device.h>
#include <device/pci.h>
#include "pch.h"
#include "lp_gpio.h"

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Functions
static u16	get_gpio_base (void)
static int	lp_gpio_to_pirq (int gpio)
void	setup_pch_lp_gpios (const struct pch_lp_gpio_map map[])
int	get_gpio (int gpio_num)
unsigned int	get_gpios (const int *gpio_num_array)
void	set_gpio (int gpio_num, int value)
int	gpio_is_native (int gpio_num)

Function Documentation

get_gpio()

int get_gpio

(

int

gpio_num

)

Definition at line 102 of file lp_gpio.c.

References get_gpio_base(), GPI_LEVEL, GPIO_CONFIG0, inl(), and MAX_GPIO_NUMBER.

Referenced by get_gpios().

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get_gpio_base()

static u16 get_gpio_base ( void  )

static

Definition at line 12 of file lp_gpio.c.

References GPIO_BASE, PCH_LPC_DEV, pci_read_config16(), and pcidev_on_root().

Referenced by get_gpio(), gpio_is_native(), set_gpio(), and setup_pch_lp_gpios().

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get_gpios()

unsigned int get_gpios

(

const int *

gpio_num_array

)

Definition at line 116 of file lp_gpio.c.

References get_gpio(), and pch_lp_gpio_map::gpio.

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gpio_is_native()

int gpio_is_native

(

int

gpio_num

)

Definition at line 145 of file lp_gpio.c.

References get_gpio_base(), GPIO_CONFIG0, and inl().

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lp_gpio_to_pirq()

static int lp_gpio_to_pirq ( int  gpio )

static

Definition at line 27 of file lp_gpio.c.

Referenced by setup_pch_lp_gpios().

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set_gpio()

void set_gpio	(	int	gpio_num,
		int	value
	)

Definition at line 131 of file lp_gpio.c.

References pch_lp_gpio_map::conf0, get_gpio_base(), GPIO_CONFIG0, GPO_LEVEL_MASK, GPO_LEVEL_SHIFT, inl(), MAX_GPIO_NUMBER, outl(), and value.

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setup_pch_lp_gpios()

void setup_pch_lp_gpios

(

const struct pch_lp_gpio_map

map[]

)

Definition at line 50 of file lp_gpio.c.

References pch_lp_gpio_map::blink, config, get_gpio_base(), GPIO_BLINK, GPIO_CONFIG0, GPIO_CONFIG1, GPIO_IRQ_IE, GPIO_LIST_END, GPIO_OWNER, GPIO_PIRQ_APIC_EN, GPIO_PIRQ_APIC_ROUTE, GPIO_RESET, GPIO_ROUTE, pch_lp_gpio_map::irqen, lp_gpio_to_pirq(), MAX_GPIO_NUMBER, outl(), pch_lp_gpio_map::owner, reset(), and pch_lp_gpio_map::route.

Referenced by early_pch_init(), and mainboard_romstage_entry().

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