#include "memory_map.h"

Include dependency graph for hal_io.h:

This graph shows which files directly or indirectly include this file:

Defines
#define	GPIO_TX_BANK 0
#define	GPIO_RX_BANK 1
Functions
void	hal_io_init (void)
void	hal_finish ()
void	hal_gpio_set_ddr (int bank, int value, int mask)
	Set the data direction for GPIO pins.
void	hal_gpio_set_sel (int bank, int bitno, char code)
	Select the source of the signal for an output pin.
void	hal_gpio_set_sels (int bank, char *codes)
	Select the source of the signal for the output pins.
void	hal_gpio_write (int bank, int value, int mask)
	write `value` to gpio pins specified by `mask`.
int	hal_gpio_read (int bank)
	read GPIO bits
void	hal_set_leds (int value, int mask)
void	hal_set_led_src (int value, int mask)
void	hal_toggle_leds (int mask)
static void	hal_set_timeout (int delta_ticks)
static int	hal_disable_ints (void)
	Disable interrupts and return previous interrupt enable state. [Microblaze specific].
static int	hal_enable_ints (void)
	Enable interrupts and return previous interrupt enable state. [Microblaze specific].
static void	hal_restore_ints (int prev_state)
	Set interrupt enable state to `prev_state`. [Microblaze specific].

Define Documentation

#define GPIO_RX_BANK 1

#define GPIO_TX_BANK 0

Function Documentation

static int hal_disable_ints ( void ) [inline, static]

Disable interrupts and return previous interrupt enable state. [Microblaze specific].

static int hal_enable_ints ( void ) [inline, static]

Enable interrupts and return previous interrupt enable state. [Microblaze specific].

void hal_finish ( )

int hal_gpio_read ( int bank )

read GPIO bits

void hal_gpio_set_ddr	(	int	bank,
		int	value,
		int	mask
	)

Set the data direction for GPIO pins.

If the bit is set, it's an output from the FPGA.

Parameters:

value	is a 16-bit bitmask of values
mask	is a 16-bit bitmask of which bits to effect.

void hal_gpio_set_sel	(	int	bank,
		int	bitno,
		char	code
	)

Select the source of the signal for an output pin.

Parameters:

code	is is one of 's', 'a', '0', '1' where 's' selects software output, 'a' selects ATR output, '0' selects debug 0, '1' selects debug 1.

void hal_gpio_set_sels	(	int	bank,
		char *	codes
	)

Select the source of the signal for the output pins.

Parameters:

codes is is a string of 16 characters composed of '.', 's', 'a', '0', or '1' where '.' means "don't change", 's' selects software output, 'a' selects ATR output, '0' selects debug 0, '1' selects debug 1.

void hal_gpio_write	(	int	bank,
		int	value,
		int	mask
	)

write value to gpio pins specified by mask.

void hal_io_init ( void )

static void hal_restore_ints ( int prev_state ) [inline, static]

Set interrupt enable state to prev_state. [Microblaze specific].

void hal_set_led_src	(	int	value,
		int	mask
	)

void hal_set_leds	(	int	value,
		int	mask
	)

static void hal_set_timeout ( int delta_ticks ) [inline, static]

References timer_regs.

void hal_toggle_leds ( int mask )

Defines

Functions

Define Documentation

Function Documentation