gpio.c File Reference

#include <assert.h>
#include <device/mmio.h>
#include <gpio.h>

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Functions
void	gpio_configure (gpio_t gpio, uint32_t func, uint32_t pull, uint32_t drive_str, uint32_t enable)
void	gpio_set (gpio_t gpio, int value)
int	gpio_get (gpio_t gpio)
void	gpio_input_pulldown (gpio_t gpio)
void	gpio_input_pullup (gpio_t gpio)
void	gpio_input (gpio_t gpio)
void	gpio_output (gpio_t gpio, int value)
void	gpio_input_irq (gpio_t gpio, enum gpio_irq_type type, uint32_t pull)
int	gpio_irq_status (gpio_t gpio)

Function Documentation

gpio_configure()

void gpio_configure	(	gpio_t	gpio,
		uint32_t	func,
		uint32_t	pull,
		uint32_t	drive_str,
		uint32_t	enable
	)

Definition at line 7 of file gpio.c.

References assert, GPIO_BMSK, GPIO_CFG_DRV_BMSK, GPIO_CFG_DRV_SHFT, GPIO_CFG_EGPIO_BMSK, GPIO_CFG_EGPIO_SHFT, GPIO_CFG_FUNC_BMSK, GPIO_CFG_FUNC_SHFT, GPIO_CFG_OE_SHFT, GPIO_CFG_PULL_BMSK, GPIO_CFG_PULL_SHFT, GPIO_PULL_UP, pull, read32(), and write32().

Referenced by blsp_i2c_init(), configure_gpios(), gpio_input(), gpio_input_irq(), gpio_input_pulldown(), gpio_input_pullup(), gpio_output(), i2c_init(), ipq_configure_gpio(), qi2s_configure_gpios(), qup_spi_init(), spi_ctrlr_claim_bus(), and uart_init().

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gpio_get()

int gpio_get

(

gpio_t

gpio

)

Definition at line 33 of file gpio.c.

References GPIO_BMSK, GPIO_IO_IN_SHFT, and read32().

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gpio_input()

void gpio_input

(

gpio_t

gpio

)

Definition at line 52 of file gpio.c.

References GPIO_2MA, gpio_configure(), GPIO_FUNC_GPIO, GPIO_INPUT, and GPIO_NO_PULL.

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gpio_input_irq()

void gpio_input_irq	(	gpio_t	gpio,
		enum gpio_irq_type	type,
		uint32_t	pull
	)

Definition at line 65 of file gpio.c.

References clrsetbits32, GPIO_2MA, gpio_configure(), GPIO_FUNC_GPIO, GPIO_INPUT, GPIO_INTR_DECT_CTL_MASK, GPIO_INTR_DECT_CTL_SHFT, GPIO_INTR_RAW_STATUS_EN_SHFT, GPIO_INTR_STATUS_ENABLE, pull, and type.

Referenced by configure_tpm(), and setup_chromeos_gpios().

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gpio_input_pulldown()

void gpio_input_pulldown

(

gpio_t

gpio

)

Definition at line 40 of file gpio.c.

References GPIO_2MA, gpio_configure(), GPIO_FUNC_GPIO, GPIO_INPUT, and GPIO_PULL_DOWN.

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gpio_input_pullup()

void gpio_input_pullup

(

gpio_t

gpio

)

Definition at line 46 of file gpio.c.

References GPIO_2MA, gpio_configure(), GPIO_FUNC_GPIO, GPIO_INPUT, and GPIO_PULL_UP.

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gpio_irq_status()

int gpio_irq_status

(

gpio_t

gpio

)

Definition at line 79 of file gpio.c.

References GPIO_INTR_STATUS_DISABLE, GPIO_INTR_STATUS_ENABLE, GPIO_INTR_STATUS_MASK, read32(), and write32().

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gpio_output()

void gpio_output	(	gpio_t	gpio,
		int	value
	)

Definition at line 58 of file gpio.c.

References GPIO_2MA, gpio_configure(), GPIO_FUNC_GPIO, GPIO_NO_PULL, GPIO_OUTPUT, gpio_set(), and value.

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gpio_set()

void gpio_set	(	gpio_t	gpio,
		int	value
	)

Definition at line 26 of file gpio.c.

References GPIO_IO_OUT_SHFT, value, and write32().

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