1 /*-
36 #include <sys/resource.h>
42 #include <machine/resource.h>
55 #define GPIO_LOCK(sc)			mtx_lock(&(sc)->sc_mtx)  argument
56 #define	GPIO_UNLOCK(sc)		mtx_unlock(&(sc)->sc_mtx)  argument
57 #define GPIO_LOCK_INIT(sc) \  argument
58 	mtx_init(&(sc)->sc_mtx, device_get_nameunit((sc)->dev),	\
60 #define GPIO_LOCK_DESTROY(_sc)	mtx_destroy(&_sc->sc_mtx);
66 	struct resource *out_res;	/* Memory resource */
67 	struct resource *in_res;
73 	struct mpc85xx_gpio_softc *sc;  in mpc85xx_gpio_get_bus()  local
75 	sc = device_get_softc(dev);  in mpc85xx_gpio_get_bus()
77 	return (sc->busdev);  in mpc85xx_gpio_get_bus()
110 	name[GPIOMAXNAME-1] = '\0';  in mpc85xx_gpio_pin_getname()
119 	struct mpc85xx_gpio_softc *sc = device_get_softc(dev);  in mpc85xx_gpio_pin_set()  local
126 	GPIO_LOCK(sc);  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()
134 	GPIO_UNLOCK(sc);  in mpc85xx_gpio_pin_set()
143 	struct mpc85xx_gpio_softc *sc = device_get_softc(dev);  in mpc85xx_gpio_pin_get()  local
148 	*value = (bus_read_4(sc->in_res, 0) >> (31 - pin)) & 1;  in mpc85xx_gpio_pin_get()
157 	struct mpc85xx_gpio_softc *sc = device_get_softc(dev);  in mpc85xx_gpio_pin_toggle()  local
163 	GPIO_LOCK(sc);  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()
169 	GPIO_UNLOCK(sc);  in mpc85xx_gpio_pin_toggle()
203 	struct mpc85xx_gpio_softc *sc = device_get_softc(dev);  in mpc85xx_gpio_attach()  local
206 	sc->dev = dev;  in mpc85xx_gpio_attach()
208 	GPIO_LOCK_INIT(sc);  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()
231 	sc->busdev = gpiobus_add_bus(dev);  in mpc85xx_gpio_attach()
232 	if (sc->busdev == NULL) {  in mpc85xx_gpio_attach()
244 	struct mpc85xx_gpio_softc *sc = device_get_softc(dev);  in mpc85xx_gpio_detach()  local
248 	if (sc->out_res != NULL) {  in mpc85xx_gpio_detach()
249 		/* Release output port resource. */  in mpc85xx_gpio_detach()
251 				     rman_get_rid(sc->out_res), sc->out_res);  in mpc85xx_gpio_detach()
254 	if (sc->in_res != NULL) {  in mpc85xx_gpio_detach()
255 		/* Release input port resource. */  in mpc85xx_gpio_detach()
257 				     rman_get_rid(sc->in_res), sc->in_res);  in mpc85xx_gpio_detach()
260 	GPIO_LOCK_DESTROY(sc);  in mpc85xx_gpio_detach()