Lines Matching +full:i2c +full:- +full:slave +full:- +full:addr

1 /*-
28  * i2c-tiny-usb, DIY USB to IIC bridge (using AVR or RP2040) from
31  *   https://github.com/harbaum/I2C-Tiny-USB
33  *   https://github.com/Nicolai-Electronics/rp2040-i2c-interface
86 static int i2ctinyusb_reset(device_t dev, u_char speed, u_char addr,
103 	error = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx, &req, data, 0,  in usb_read()
107 		actlen = -1;  in usb_read()
126 	error = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx, &req, data, 0,  in usb_write()
130 		actlen = -1;  in usb_write()
143 	if (uaa->usb_mode != USB_MODE_HOST)  in i2ctinyusb_probe()
148 		device_set_desc(dev, "I2C-Tiny-USB I2C interface");  in i2ctinyusb_probe()
167 	sc->sc_udev = uaa->device;  in i2ctinyusb_attach()
168 	mtx_init(&sc->sc_mtx, "i2ctinyusb lock", NULL, MTX_DEF | MTX_RECURSE);  in i2ctinyusb_attach()
170 	sc->iicbus_dev = device_add_child(dev, "iicbus", DEVICE_UNIT_ANY);  in i2ctinyusb_attach()
171 	if (sc->iicbus_dev == NULL) {  in i2ctinyusb_attach()
197 	mtx_destroy(&sc->sc_mtx);  in i2ctinyusb_detach()
214 	mtx_lock(&sc->sc_mtx);  in i2ctinyusb_transfer()
220 		if (i == nmsgs - 1)  in i2ctinyusb_transfer()
224 			if ((ret = usb_read(sc, cmd, pmsg->flags, pmsg->slave, pmsg->buf,  in i2ctinyusb_transfer()
225 							pmsg->len)) != pmsg->len) {  in i2ctinyusb_transfer()
231 			if ((ret = usb_write(sc, cmd, pmsg->flags, pmsg->slave, pmsg->buf,  in i2ctinyusb_transfer()
232 							pmsg->len)) != pmsg->len) {  in i2ctinyusb_transfer()
254 	mtx_unlock(&sc->sc_mtx);  in i2ctinyusb_transfer()
259 i2ctinyusb_reset(device_t dev, u_char speed, u_char addr, u_char *oldaddr)  in i2ctinyusb_reset()  argument
266 	mtx_lock(&sc->sc_mtx);  in i2ctinyusb_reset()
268 	mtx_unlock(&sc->sc_mtx);  in i2ctinyusb_reset()
282 	/* I2C methods */