5  *  Copyright 2006 Phil Sutter <n0-1@freewrt.org>
37 #include <asm/mach-rc32434/rb.h>
38 #include <asm/mach-rc32434/gpio.h>
41 /* Offsets relative to GPIOBASE */
51 	struct gpio_chip chip;  member
59 		.end	= REGBASE + GPIOBASE + sizeof(struct rb532_gpio_reg) - 1,
64 /* rb532_set_bit - sanely set a bit
86 /* rb532_get_bit - read a bit
97 static int rb532_gpio_get(struct gpio_chip *chip, unsigned offset)  in rb532_gpio_get()  argument
101 	gpch = gpiochip_get_data(chip);  in rb532_gpio_get()
102 	return !!rb532_get_bit(offset, gpch->regbase + GPIOD);  in rb532_gpio_get()
108 static void rb532_gpio_set(struct gpio_chip *chip,  in rb532_gpio_set()  argument
113 	gpch = gpiochip_get_data(chip);  in rb532_gpio_set()
114 	rb532_set_bit(value, offset, gpch->regbase + GPIOD);  in rb532_gpio_set()
120 static int rb532_gpio_direction_input(struct gpio_chip *chip, unsigned offset)  in rb532_gpio_direction_input()  argument
124 	gpch = gpiochip_get_data(chip);  in rb532_gpio_direction_input()
127 	rb532_set_bit(0, offset, gpch->regbase + GPIOFUNC);  in rb532_gpio_direction_input()
129 	rb532_set_bit(0, offset, gpch->regbase + GPIOCFG);  in rb532_gpio_direction_input()
136 static int rb532_gpio_direction_output(struct gpio_chip *chip,  in rb532_gpio_direction_output()  argument
141 	gpch = gpiochip_get_data(chip);  in rb532_gpio_direction_output()
144 	rb532_set_bit(0, offset, gpch->regbase + GPIOFUNC);  in rb532_gpio_direction_output()
147 	rb532_set_bit(value, offset, gpch->regbase + GPIOD);  in rb532_gpio_direction_output()
149 	rb532_set_bit(1, offset, gpch->regbase + GPIOCFG);  in rb532_gpio_direction_output()
153 static int rb532_gpio_to_irq(struct gpio_chip *chip, unsigned gpio)  in rb532_gpio_to_irq()  argument
160 		.chip = {
178 	rb532_set_bit(bit, gpio, rb532_gpio_chip->regbase + GPIOILEVEL);  in rb532_gpio_set_ilevel()
187 	rb532_set_bit(bit, gpio, rb532_gpio_chip->regbase + GPIOISTAT);  in rb532_gpio_set_istat()
196        rb532_set_bit(1, gpio, rb532_gpio_chip->regbase + GPIOFUNC);  in rb532_gpio_set_func()
205 	rb532_gpio_chip->regbase = ioremap(r->start, resource_size(r));  in rb532_gpio_init()
207 	if (!rb532_gpio_chip->regbase) {  in rb532_gpio_init()
209 		return -ENXIO;  in rb532_gpio_init()
212 	/* Register our GPIO chip */  in rb532_gpio_init()
213 	gpiochip_add_data(&rb532_gpio_chip->chip, rb532_gpio_chip);  in rb532_gpio_init()