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 "gpio.h"

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Macros
#define	MAX_GPIO_NUMBER   75 /* zero based */
#define	GPIO_BASE   0x48

Functions
static u16	get_gpio_base (void)
void	setup_pch_gpios (const struct pch_gpio_map *gpio)
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)

Macro Definition Documentation

GPIO_BASE

#define GPIO_BASE   0x48

Definition at line 14 of file gpio.c.

MAX_GPIO_NUMBER

#define MAX_GPIO_NUMBER   75 /* zero based */

Definition at line 11 of file gpio.c.

Function Documentation

get_gpio()

int get_gpio

(

int

gpio_num

)

Definition at line 88 of file gpio.c.

References get_gpio_base(), GP_LVL, GP_LVL2, GP_LVL3, 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 16 of file gpio.c.

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

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

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get_gpios()

unsigned int get_gpios

(

const int *

gpio_num_array

)

Definition at line 107 of file gpio.c.

References get_gpio().

Referenced by dock_present(), locate_spd(), mainboard_get_spd(), and variant_get_spd_index().

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gpio_is_native()

int gpio_is_native

(

int

gpio_num

)

Definition at line 147 of file gpio.c.

References config, get_gpio_base(), GPIO_USE_SEL, GPIO_USE_SEL2, GPIO_USE_SEL3, inl(), and MAX_GPIO_NUMBER.

Referenced by pch_enable_mphy(), and pcie_enable_clock_gating().

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set_gpio()

void set_gpio	(	int	gpio_num,
		int	value
	)

Definition at line 125 of file gpio.c.

References config, get_gpio_base(), GP_LVL, GP_LVL2, GP_LVL3, inl(), MAX_GPIO_NUMBER, outl(), and value.

Referenced by dock_connect(), dock_disconnect(), early_hybrid_graphics(), mainboard_disable_gpios(), mainboard_post_raminit(), mainboard_smi_sleep(), and mb_post_raminit_setup().

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setup_pch_gpios()

void setup_pch_gpios

(

const struct pch_gpio_map *

gpio

)

Definition at line 33 of file gpio.c.

References get_gpio_base(), GP_IO_SEL, GP_IO_SEL2, GP_IO_SEL3, GP_LVL, GP_LVL2, GP_LVL3, GP_RST_SEL1, GP_RST_SEL2, GP_RST_SEL3, GPI_INV, GPIO_USE_SEL, GPIO_USE_SEL2, GPIO_USE_SEL3, GPO_BLINK, and outl().

Referenced by bootblock_mainboard_early_init(), early_gpio_init(), early_pch_init(), i82801jx_early_init(), and mainboard_romstage_entry().

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