1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
62 #define TCA64XX_BIT_FROM_PIN(pin)	(pin % TCA64XX_PINS_PER_REG)  argument
63 #define TCA64XX_REG_ADDR(pin, baseaddr)	(baseaddr | (pin / \  argument
173 	msgs[0].slave = sc->addr;  in tca64xx_read()
178 	msgs[1].slave = sc->addr;  in tca64xx_read()
188 tca64xx_write(device_t dev, uint8_t reg, uint8_t val)  in tca64xx_write()  argument
193 	uint8_t buffer[2] = {reg, val};  in tca64xx_write()
197 	msg.slave = sc->addr;  in tca64xx_write()
216 	switch (compat_ptr->ocd_data) {  in tca64xx_probe()
239 	switch (compat_ptr->ocd_data) {  in tca64xx_attach()
241 		sc->in_port_reg = TCA6416_IN_PORT_REG;  in tca64xx_attach()
242 		sc->out_port_reg = TCA6416_OUT_PORT_REG;  in tca64xx_attach()
243 		sc->polarity_inv_reg = TCA6416_POLARITY_INV_REG;  in tca64xx_attach()
244 		sc->conf_reg = TCA6416_CONF_REG;  in tca64xx_attach()
245 		sc->num_pins = TCA6416_NUM_PINS;  in tca64xx_attach()
248 		sc->in_port_reg = TCA6408_IN_PORT_REG;  in tca64xx_attach()
249 		sc->out_port_reg = TCA6408_OUT_PORT_REG;  in tca64xx_attach()
250 		sc->polarity_inv_reg = TCA6408_POLARITY_INV_REG;  in tca64xx_attach()
251 		sc->conf_reg = TCA6408_CONF_REG;  in tca64xx_attach()
252 		sc->num_pins = TCA6408_NUM_PINS;  in tca64xx_attach()
258 	sc->pin_caps = TCA64XX_PIN_CAPS;  in tca64xx_attach()
259 	sc->chip = compat_ptr->ocd_data;  in tca64xx_attach()
260 	sc->dev = dev;  in tca64xx_attach()
261 	sc->addr = iicbus_get_addr(dev);  in tca64xx_attach()
263 	mtx_init(&sc->mtx, "tca64xx gpio", "gpio", MTX_DEF);  in tca64xx_attach()
264 	sc->busdev = gpiobus_attach_bus(dev);  in tca64xx_attach()
265 	if (sc->busdev == NULL) {  in tca64xx_attach()
273 	switch (sc->chip) {  in tca64xx_attach()
295 	if (sc->busdev != NULL)  in tca64xx_detach()
296 		gpiobus_detach_bus(sc->busdev);  in tca64xx_detach()
298 	mtx_destroy(&sc->mtx);  in tca64xx_detach()
310 	return (sc->busdev);  in tca64xx_get_bus()
323 	*maxpin = sc->num_pins-1;  in tca64xx_pin_max()
329 tca64xx_pin_getcaps(device_t dev, uint32_t pin, uint32_t *caps)  in tca64xx_pin_getcaps()  argument
335 	if (pin >= sc->num_pins || caps == NULL)  in tca64xx_pin_getcaps()
337 	*caps = sc->pin_caps;  in tca64xx_pin_getcaps()
343 tca64xx_pin_getflags(device_t dev, uint32_t pin, uint32_t *pflags)  in tca64xx_pin_getflags()  argument
346 	uint8_t bit, val, addr;  in tca64xx_pin_getflags()  local
351 	bit = TCA64XX_BIT_FROM_PIN(pin);  in tca64xx_pin_getflags()
353 	if (pin >= sc->num_pins || pflags == NULL)  in tca64xx_pin_getflags()
356 	addr = TCA64XX_REG_ADDR(pin, sc->conf_reg);  in tca64xx_pin_getflags()
357 	error = tca64xx_read(dev, addr, &val);  in tca64xx_pin_getflags()
361 	*pflags = (val & (1 << bit)) ? GPIO_PIN_INPUT : GPIO_PIN_OUTPUT;  in tca64xx_pin_getflags()
363 	addr = TCA64XX_REG_ADDR(pin, sc->polarity_inv_reg);  in tca64xx_pin_getflags()
364 	error = tca64xx_read(dev, addr, &val);  in tca64xx_pin_getflags()
368 	if (val & (1 << bit))  in tca64xx_pin_getflags()
375 tca64xx_pin_setflags(device_t dev, uint32_t pin, uint32_t flags)  in tca64xx_pin_setflags()  argument
377 	uint8_t bit, val, addr, pins, inv_val;  in tca64xx_pin_setflags()  local
383 	pins = sc->num_pins;  in tca64xx_pin_setflags()
384 	bit = TCA64XX_BIT_FROM_PIN(pin);  in tca64xx_pin_setflags()
386 	if (pin >= pins)  in tca64xx_pin_setflags()
388 	mtx_lock(&sc->mtx);  in tca64xx_pin_setflags()
390 	addr = TCA64XX_REG_ADDR(pin, sc->conf_reg);  in tca64xx_pin_setflags()
391 	error = tca64xx_read(dev, addr, &val);  in tca64xx_pin_setflags()
395 	addr = TCA64XX_REG_ADDR(pin, sc->polarity_inv_reg);  in tca64xx_pin_setflags()
401 		val |= (1 << bit);  in tca64xx_pin_setflags()
403 		val &= ~(1 << bit);  in tca64xx_pin_setflags()
410 	addr = TCA64XX_REG_ADDR(pin, sc->conf_reg);  in tca64xx_pin_setflags()
411 	error = tca64xx_write(dev, addr, val);  in tca64xx_pin_setflags()
415 	addr = TCA64XX_REG_ADDR(pin, sc->polarity_inv_reg);  in tca64xx_pin_setflags()
419 	mtx_unlock(&sc->mtx);  in tca64xx_pin_setflags()
424 tca64xx_pin_getname(device_t dev, uint32_t pin, char *name)  in tca64xx_pin_getname()  argument
430 	if (pin >= sc->num_pins || name == NULL)  in tca64xx_pin_getname()
433 	snprintf(name, GPIOMAXNAME, "gpio_P%d%d", pin / TCA64XX_PINS_PER_REG,  in tca64xx_pin_getname()
434 	    pin % TCA64XX_PINS_PER_REG);  in tca64xx_pin_getname()
440 tca64xx_pin_get(device_t dev, uint32_t pin, unsigned int *pval)  in tca64xx_pin_get()  argument
448 	pins = sc->num_pins;  in tca64xx_pin_get()
449 	addr = TCA64XX_REG_ADDR(pin, sc->in_port_reg);  in tca64xx_pin_get()
450 	bit = TCA64XX_BIT_FROM_PIN(pin);  in tca64xx_pin_get()
452 	if (pin >= pins || pval == NULL)  in tca64xx_pin_get()
455 	dbg_dev_printf(dev, "Reading pin %u pvalue.", pin);  in tca64xx_pin_get()
466 tca64xx_pin_set(device_t dev, uint32_t pin, unsigned int val)  in tca64xx_pin_set()  argument
474 	pins = sc->num_pins;  in tca64xx_pin_set()
475 	addr = TCA64XX_REG_ADDR(pin, sc->out_port_reg);  in tca64xx_pin_set()
476 	bit = TCA64XX_BIT_FROM_PIN(pin);  in tca64xx_pin_set()
478 	if (pin >= pins)  in tca64xx_pin_set()
481 	dbg_dev_printf(dev, "Setting pin: %u to %u\n", pin, val);  in tca64xx_pin_set()
483 	mtx_lock(&sc->mtx);  in tca64xx_pin_set()
487 		mtx_unlock(&sc->mtx);  in tca64xx_pin_set()
492 	if (val != 0)  in tca64xx_pin_set()
499 		mtx_unlock(&sc->mtx);  in tca64xx_pin_set()
504 	mtx_unlock(&sc->mtx);  in tca64xx_pin_set()
510 tca64xx_pin_toggle(device_t dev, uint32_t pin)  in tca64xx_pin_toggle()  argument
518 	pins = sc->num_pins;  in tca64xx_pin_toggle()
519 	addr = TCA64XX_REG_ADDR(pin, sc->out_port_reg);  in tca64xx_pin_toggle()
520 	bit = TCA64XX_BIT_FROM_PIN(pin);  in tca64xx_pin_toggle()
522 	if (pin >= pins)  in tca64xx_pin_toggle()
525 	dbg_dev_printf(dev, "Toggling pin: %d\n", pin);  in tca64xx_pin_toggle()
527 	mtx_lock(&sc->mtx);  in tca64xx_pin_toggle()
531 		mtx_unlock(&sc->mtx);  in tca64xx_pin_toggle()
540 		mtx_unlock(&sc->mtx);  in tca64xx_pin_toggle()
545 	mtx_unlock(&sc->mtx);  in tca64xx_pin_toggle()