1 /*-
55 #define GPIO_LOCK(sc)			mtx_lock(&(sc)->sc_mtx)
56 #define	GPIO_UNLOCK(sc)		mtx_unlock(&(sc)->sc_mtx)
58 	mtx_init(&(sc)->sc_mtx, device_get_nameunit((sc)->dev),	\
60 #define GPIO_LOCK_DESTROY(_sc)	mtx_destroy(&_sc->sc_mtx);
77 	return (sc->busdev);  in mpc85xx_gpio_get_bus()
88 /* Get a specific pin's capabilities. */
90 mpc85xx_gpio_pin_getcaps(device_t dev, uint32_t pin, uint32_t *caps)  in mpc85xx_gpio_pin_getcaps()  argument
93 	if (!VALID_PIN(pin))  in mpc85xx_gpio_pin_getcaps()
101 /* Get a specific pin's name. */
103 mpc85xx_gpio_pin_getname(device_t dev, uint32_t pin, char *name)  in mpc85xx_gpio_pin_getname()  argument
106 	if (!VALID_PIN(pin))  in mpc85xx_gpio_pin_getname()
109 	snprintf(name, GPIOMAXNAME, "GPIO%d", pin);  in mpc85xx_gpio_pin_getname()
110 	name[GPIOMAXNAME-1] = '\0';  in mpc85xx_gpio_pin_getname()
115 /* Set a specific output pin's value. */
117 mpc85xx_gpio_pin_set(device_t dev, uint32_t pin, unsigned int value)  in mpc85xx_gpio_pin_set()  argument
123 	if (!VALID_PIN(pin) || value > 1)  in mpc85xx_gpio_pin_set()
127 	pinbit = 31 - pin;  in mpc85xx_gpio_pin_set()
129 	outvals = bus_read_4(sc->out_res, 0);  in mpc85xx_gpio_pin_set()
132 	bus_write_4(sc->out_res, 0, outvals);  in mpc85xx_gpio_pin_set()
139 /* Get a specific pin's input value. */
141 mpc85xx_gpio_pin_get(device_t dev, uint32_t pin, unsigned int *value)  in mpc85xx_gpio_pin_get()  argument
145 	if (!VALID_PIN(pin))  in mpc85xx_gpio_pin_get()
148 	*value = (bus_read_4(sc->in_res, 0) >> (31 - pin)) & 1;  in mpc85xx_gpio_pin_get()
153 /* Toggle a pin's output value. */
155 mpc85xx_gpio_pin_toggle(device_t dev, uint32_t pin)  in mpc85xx_gpio_pin_toggle()  argument
158 	uint32_t val;  in mpc85xx_gpio_pin_toggle()  local
160 	if (!VALID_PIN(pin))  in mpc85xx_gpio_pin_toggle()
165 	val = bus_read_4(sc->out_res, 0);  in mpc85xx_gpio_pin_toggle()
166 	val ^= (1 << (31 - pin));  in mpc85xx_gpio_pin_toggle()
167 	bus_write_4(sc->out_res, 0, val);  in mpc85xx_gpio_pin_toggle()
206 	sc->dev = dev;  in mpc85xx_gpio_attach()
212 	sc->out_res = bus_alloc_resource_any(dev,  in mpc85xx_gpio_attach()
214 	if (sc->out_res == NULL) {  in mpc85xx_gpio_attach()
221 	sc->in_res = bus_alloc_resource_any(dev,  in mpc85xx_gpio_attach()
223 	if (sc->in_res == NULL) {  in mpc85xx_gpio_attach()
229 	sc->busdev = gpiobus_attach_bus(dev);  in mpc85xx_gpio_attach()
230 	if (sc->busdev == NULL) {  in mpc85xx_gpio_attach()
247 	if (sc->out_res != NULL) {  in mpc85xx_gpio_detach()
250 				     rman_get_rid(sc->out_res), sc->out_res);  in mpc85xx_gpio_detach()
253 	if (sc->in_res != NULL) {  in mpc85xx_gpio_detach()
256 				     rman_get_rid(sc->in_res), sc->in_res);  in mpc85xx_gpio_detach()