xref: /freebsd/sys/dev/usb/serial/uark.c (revision f29a072444d6e31d57f7edd94f952395ae7bb22e)
102ac6454SAndrew Thompson /*	$OpenBSD: uark.c,v 1.1 2006/08/14 08:30:22 jsg Exp $	*/
202ac6454SAndrew Thompson 
302ac6454SAndrew Thompson /*
402ac6454SAndrew Thompson  * Copyright (c) 2006 Jonathan Gray <jsg@openbsd.org>
502ac6454SAndrew Thompson  *
602ac6454SAndrew Thompson  * Permission to use, copy, modify, and distribute this software for any
702ac6454SAndrew Thompson  * purpose with or without fee is hereby granted, provided that the above
802ac6454SAndrew Thompson  * copyright notice and this permission notice appear in all copies.
902ac6454SAndrew Thompson  *
1002ac6454SAndrew Thompson  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
1102ac6454SAndrew Thompson  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
1202ac6454SAndrew Thompson  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
1302ac6454SAndrew Thompson  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
1402ac6454SAndrew Thompson  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
1502ac6454SAndrew Thompson  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
1602ac6454SAndrew Thompson  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1702ac6454SAndrew Thompson  *
1802ac6454SAndrew Thompson  * $FreeBSD$
1902ac6454SAndrew Thompson  */
2002ac6454SAndrew Thompson 
2102ac6454SAndrew Thompson /*
2202ac6454SAndrew Thompson  * NOTE: all function names beginning like "uark_cfg_" can only
2302ac6454SAndrew Thompson  * be called from within the config thread function !
2402ac6454SAndrew Thompson  */
2502ac6454SAndrew Thompson 
2602ac6454SAndrew Thompson #include "usbdevs.h"
2702ac6454SAndrew Thompson #include <dev/usb/usb.h>
2802ac6454SAndrew Thompson #include <dev/usb/usb_mfunc.h>
2902ac6454SAndrew Thompson #include <dev/usb/usb_error.h>
3002ac6454SAndrew Thompson #include <dev/usb/usb_cdc.h>
3102ac6454SAndrew Thompson 
3202ac6454SAndrew Thompson #define	USB_DEBUG_VAR usb2_debug
3302ac6454SAndrew Thompson 
3402ac6454SAndrew Thompson #include <dev/usb/usb_core.h>
3502ac6454SAndrew Thompson #include <dev/usb/usb_debug.h>
3602ac6454SAndrew Thompson #include <dev/usb/usb_process.h>
3702ac6454SAndrew Thompson #include <dev/usb/usb_request.h>
3802ac6454SAndrew Thompson #include <dev/usb/usb_lookup.h>
3902ac6454SAndrew Thompson #include <dev/usb/usb_util.h>
4002ac6454SAndrew Thompson 
4102ac6454SAndrew Thompson #include <dev/usb/serial/usb_serial.h>
4202ac6454SAndrew Thompson 
4302ac6454SAndrew Thompson #define	UARK_BUF_SIZE		1024	/* bytes */
4402ac6454SAndrew Thompson 
4502ac6454SAndrew Thompson #define	UARK_SET_DATA_BITS(x)	((x) - 5)
4602ac6454SAndrew Thompson 
4702ac6454SAndrew Thompson #define	UARK_PARITY_NONE	0x00
4802ac6454SAndrew Thompson #define	UARK_PARITY_ODD		0x08
4902ac6454SAndrew Thompson #define	UARK_PARITY_EVEN	0x18
5002ac6454SAndrew Thompson 
5102ac6454SAndrew Thompson #define	UARK_STOP_BITS_1	0x00
5202ac6454SAndrew Thompson #define	UARK_STOP_BITS_2	0x04
5302ac6454SAndrew Thompson 
5402ac6454SAndrew Thompson #define	UARK_BAUD_REF		3000000
5502ac6454SAndrew Thompson 
5602ac6454SAndrew Thompson #define	UARK_WRITE		0x40
5702ac6454SAndrew Thompson #define	UARK_READ		0xc0
5802ac6454SAndrew Thompson 
5902ac6454SAndrew Thompson #define	UARK_REQUEST		0xfe
6002ac6454SAndrew Thompson 
6102ac6454SAndrew Thompson #define	UARK_CONFIG_INDEX	0
6202ac6454SAndrew Thompson #define	UARK_IFACE_INDEX	0
6302ac6454SAndrew Thompson 
6402ac6454SAndrew Thompson enum {
6502ac6454SAndrew Thompson 	UARK_BULK_DT_WR,
6602ac6454SAndrew Thompson 	UARK_BULK_DT_RD,
6702ac6454SAndrew Thompson 	UARK_N_TRANSFER,
6802ac6454SAndrew Thompson };
6902ac6454SAndrew Thompson 
7002ac6454SAndrew Thompson struct uark_softc {
7102ac6454SAndrew Thompson 	struct usb2_com_super_softc sc_super_ucom;
7202ac6454SAndrew Thompson 	struct usb2_com_softc sc_ucom;
7302ac6454SAndrew Thompson 
7402ac6454SAndrew Thompson 	struct usb2_xfer *sc_xfer[UARK_N_TRANSFER];
7502ac6454SAndrew Thompson 	struct usb2_device *sc_udev;
76deefe583SAndrew Thompson 	struct mtx sc_mtx;
7702ac6454SAndrew Thompson 
7802ac6454SAndrew Thompson 	uint8_t	sc_msr;
7902ac6454SAndrew Thompson 	uint8_t	sc_lsr;
8002ac6454SAndrew Thompson };
8102ac6454SAndrew Thompson 
8202ac6454SAndrew Thompson /* prototypes */
8302ac6454SAndrew Thompson 
8402ac6454SAndrew Thompson static device_probe_t uark_probe;
8502ac6454SAndrew Thompson static device_attach_t uark_attach;
8602ac6454SAndrew Thompson static device_detach_t uark_detach;
8702ac6454SAndrew Thompson 
8802ac6454SAndrew Thompson static usb2_callback_t uark_bulk_write_callback;
8902ac6454SAndrew Thompson static usb2_callback_t uark_bulk_read_callback;
9002ac6454SAndrew Thompson 
9102ac6454SAndrew Thompson static void	uark_start_read(struct usb2_com_softc *);
9202ac6454SAndrew Thompson static void	uark_stop_read(struct usb2_com_softc *);
9302ac6454SAndrew Thompson static void	uark_start_write(struct usb2_com_softc *);
9402ac6454SAndrew Thompson static void	uark_stop_write(struct usb2_com_softc *);
9502ac6454SAndrew Thompson static int	uark_pre_param(struct usb2_com_softc *, struct termios *);
9602ac6454SAndrew Thompson static void	uark_cfg_param(struct usb2_com_softc *, struct termios *);
9702ac6454SAndrew Thompson static void	uark_cfg_get_status(struct usb2_com_softc *, uint8_t *,
9802ac6454SAndrew Thompson 		    uint8_t *);
9902ac6454SAndrew Thompson static void	uark_cfg_set_break(struct usb2_com_softc *, uint8_t);
10002ac6454SAndrew Thompson static void	uark_cfg_write(struct uark_softc *, uint16_t, uint16_t);
10102ac6454SAndrew Thompson 
10202ac6454SAndrew Thompson static const struct usb2_config
10302ac6454SAndrew Thompson 	uark_xfer_config[UARK_N_TRANSFER] = {
10402ac6454SAndrew Thompson 
10502ac6454SAndrew Thompson 	[UARK_BULK_DT_WR] = {
10602ac6454SAndrew Thompson 		.type = UE_BULK,
10702ac6454SAndrew Thompson 		.endpoint = UE_ADDR_ANY,
10802ac6454SAndrew Thompson 		.direction = UE_DIR_OUT,
1094eae601eSAndrew Thompson 		.bufsize = UARK_BUF_SIZE,
1104eae601eSAndrew Thompson 		.flags = {.pipe_bof = 1,.force_short_xfer = 1,},
1114eae601eSAndrew Thompson 		.callback = &uark_bulk_write_callback,
11202ac6454SAndrew Thompson 	},
11302ac6454SAndrew Thompson 
11402ac6454SAndrew Thompson 	[UARK_BULK_DT_RD] = {
11502ac6454SAndrew Thompson 		.type = UE_BULK,
11602ac6454SAndrew Thompson 		.endpoint = UE_ADDR_ANY,
11702ac6454SAndrew Thompson 		.direction = UE_DIR_IN,
1184eae601eSAndrew Thompson 		.bufsize = UARK_BUF_SIZE,
1194eae601eSAndrew Thompson 		.flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
1204eae601eSAndrew Thompson 		.callback = &uark_bulk_read_callback,
12102ac6454SAndrew Thompson 	},
12202ac6454SAndrew Thompson };
12302ac6454SAndrew Thompson 
12402ac6454SAndrew Thompson static const struct usb2_com_callback uark_callback = {
12502ac6454SAndrew Thompson 	.usb2_com_cfg_get_status = &uark_cfg_get_status,
12602ac6454SAndrew Thompson 	.usb2_com_cfg_set_break = &uark_cfg_set_break,
12702ac6454SAndrew Thompson 	.usb2_com_cfg_param = &uark_cfg_param,
12802ac6454SAndrew Thompson 	.usb2_com_pre_param = &uark_pre_param,
12902ac6454SAndrew Thompson 	.usb2_com_start_read = &uark_start_read,
13002ac6454SAndrew Thompson 	.usb2_com_stop_read = &uark_stop_read,
13102ac6454SAndrew Thompson 	.usb2_com_start_write = &uark_start_write,
13202ac6454SAndrew Thompson 	.usb2_com_stop_write = &uark_stop_write,
13302ac6454SAndrew Thompson };
13402ac6454SAndrew Thompson 
13502ac6454SAndrew Thompson static device_method_t uark_methods[] = {
13602ac6454SAndrew Thompson 	/* Device methods */
13702ac6454SAndrew Thompson 	DEVMETHOD(device_probe, uark_probe),
13802ac6454SAndrew Thompson 	DEVMETHOD(device_attach, uark_attach),
13902ac6454SAndrew Thompson 	DEVMETHOD(device_detach, uark_detach),
14002ac6454SAndrew Thompson 	{0, 0}
14102ac6454SAndrew Thompson };
14202ac6454SAndrew Thompson 
14302ac6454SAndrew Thompson static devclass_t uark_devclass;
14402ac6454SAndrew Thompson 
14502ac6454SAndrew Thompson static driver_t uark_driver = {
14602ac6454SAndrew Thompson 	.name = "uark",
14702ac6454SAndrew Thompson 	.methods = uark_methods,
14802ac6454SAndrew Thompson 	.size = sizeof(struct uark_softc),
14902ac6454SAndrew Thompson };
15002ac6454SAndrew Thompson 
1519aef556dSAndrew Thompson DRIVER_MODULE(uark, uhub, uark_driver, uark_devclass, NULL, 0);
15202ac6454SAndrew Thompson MODULE_DEPEND(uark, ucom, 1, 1, 1);
15302ac6454SAndrew Thompson MODULE_DEPEND(uark, usb, 1, 1, 1);
15402ac6454SAndrew Thompson 
15502ac6454SAndrew Thompson static const struct usb2_device_id uark_devs[] = {
15602ac6454SAndrew Thompson 	{USB_VPI(USB_VENDOR_ARKMICRO, USB_PRODUCT_ARKMICRO_ARK3116, 0)},
15702ac6454SAndrew Thompson };
15802ac6454SAndrew Thompson 
15902ac6454SAndrew Thompson static int
16002ac6454SAndrew Thompson uark_probe(device_t dev)
16102ac6454SAndrew Thompson {
16202ac6454SAndrew Thompson 	struct usb2_attach_arg *uaa = device_get_ivars(dev);
16302ac6454SAndrew Thompson 
164f29a0724SAndrew Thompson 	if (uaa->usb_mode != USB_MODE_HOST) {
16502ac6454SAndrew Thompson 		return (ENXIO);
16602ac6454SAndrew Thompson 	}
16702ac6454SAndrew Thompson 	if (uaa->info.bConfigIndex != 0) {
16802ac6454SAndrew Thompson 		return (ENXIO);
16902ac6454SAndrew Thompson 	}
17002ac6454SAndrew Thompson 	if (uaa->info.bIfaceIndex != UARK_IFACE_INDEX) {
17102ac6454SAndrew Thompson 		return (ENXIO);
17202ac6454SAndrew Thompson 	}
17302ac6454SAndrew Thompson 	return (usb2_lookup_id_by_uaa(uark_devs, sizeof(uark_devs), uaa));
17402ac6454SAndrew Thompson }
17502ac6454SAndrew Thompson 
17602ac6454SAndrew Thompson static int
17702ac6454SAndrew Thompson uark_attach(device_t dev)
17802ac6454SAndrew Thompson {
17902ac6454SAndrew Thompson 	struct usb2_attach_arg *uaa = device_get_ivars(dev);
18002ac6454SAndrew Thompson 	struct uark_softc *sc = device_get_softc(dev);
18102ac6454SAndrew Thompson 	int32_t error;
18202ac6454SAndrew Thompson 	uint8_t iface_index;
18302ac6454SAndrew Thompson 
18402ac6454SAndrew Thompson 	device_set_usb2_desc(dev);
185deefe583SAndrew Thompson 	mtx_init(&sc->sc_mtx, "uark", NULL, MTX_DEF);
18602ac6454SAndrew Thompson 
18702ac6454SAndrew Thompson 	sc->sc_udev = uaa->device;
18802ac6454SAndrew Thompson 
18902ac6454SAndrew Thompson 	iface_index = UARK_IFACE_INDEX;
19002ac6454SAndrew Thompson 	error = usb2_transfer_setup
19102ac6454SAndrew Thompson 	    (uaa->device, &iface_index, sc->sc_xfer,
192deefe583SAndrew Thompson 	    uark_xfer_config, UARK_N_TRANSFER, sc, &sc->sc_mtx);
19302ac6454SAndrew Thompson 
19402ac6454SAndrew Thompson 	if (error) {
19502ac6454SAndrew Thompson 		device_printf(dev, "allocating control USB "
19602ac6454SAndrew Thompson 		    "transfers failed!\n");
19702ac6454SAndrew Thompson 		goto detach;
19802ac6454SAndrew Thompson 	}
19902ac6454SAndrew Thompson 	/* clear stall at first run */
200deefe583SAndrew Thompson 	mtx_lock(&sc->sc_mtx);
20102ac6454SAndrew Thompson 	usb2_transfer_set_stall(sc->sc_xfer[UARK_BULK_DT_WR]);
20202ac6454SAndrew Thompson 	usb2_transfer_set_stall(sc->sc_xfer[UARK_BULK_DT_RD]);
203deefe583SAndrew Thompson 	mtx_unlock(&sc->sc_mtx);
20402ac6454SAndrew Thompson 
20502ac6454SAndrew Thompson 	error = usb2_com_attach(&sc->sc_super_ucom, &sc->sc_ucom, 1, sc,
206deefe583SAndrew Thompson 	    &uark_callback, &sc->sc_mtx);
20702ac6454SAndrew Thompson 	if (error) {
20802ac6454SAndrew Thompson 		DPRINTF("usb2_com_attach failed\n");
20902ac6454SAndrew Thompson 		goto detach;
21002ac6454SAndrew Thompson 	}
21102ac6454SAndrew Thompson 	return (0);			/* success */
21202ac6454SAndrew Thompson 
21302ac6454SAndrew Thompson detach:
21402ac6454SAndrew Thompson 	uark_detach(dev);
21502ac6454SAndrew Thompson 	return (ENXIO);			/* failure */
21602ac6454SAndrew Thompson }
21702ac6454SAndrew Thompson 
21802ac6454SAndrew Thompson static int
21902ac6454SAndrew Thompson uark_detach(device_t dev)
22002ac6454SAndrew Thompson {
22102ac6454SAndrew Thompson 	struct uark_softc *sc = device_get_softc(dev);
22202ac6454SAndrew Thompson 
22302ac6454SAndrew Thompson 	usb2_com_detach(&sc->sc_super_ucom, &sc->sc_ucom, 1);
22402ac6454SAndrew Thompson 	usb2_transfer_unsetup(sc->sc_xfer, UARK_N_TRANSFER);
225deefe583SAndrew Thompson 	mtx_destroy(&sc->sc_mtx);
22602ac6454SAndrew Thompson 
22702ac6454SAndrew Thompson 	return (0);
22802ac6454SAndrew Thompson }
22902ac6454SAndrew Thompson 
23002ac6454SAndrew Thompson static void
23102ac6454SAndrew Thompson uark_bulk_write_callback(struct usb2_xfer *xfer)
23202ac6454SAndrew Thompson {
23302ac6454SAndrew Thompson 	struct uark_softc *sc = xfer->priv_sc;
23402ac6454SAndrew Thompson 	uint32_t actlen;
23502ac6454SAndrew Thompson 
23602ac6454SAndrew Thompson 	switch (USB_GET_STATE(xfer)) {
23702ac6454SAndrew Thompson 	case USB_ST_SETUP:
23802ac6454SAndrew Thompson 	case USB_ST_TRANSFERRED:
23902ac6454SAndrew Thompson tr_setup:
24002ac6454SAndrew Thompson 		if (usb2_com_get_data(&sc->sc_ucom, xfer->frbuffers, 0,
24102ac6454SAndrew Thompson 		    UARK_BUF_SIZE, &actlen)) {
24202ac6454SAndrew Thompson 			xfer->frlengths[0] = actlen;
24302ac6454SAndrew Thompson 			usb2_start_hardware(xfer);
24402ac6454SAndrew Thompson 		}
24502ac6454SAndrew Thompson 		return;
24602ac6454SAndrew Thompson 
24702ac6454SAndrew Thompson 	default:			/* Error */
24802ac6454SAndrew Thompson 		if (xfer->error != USB_ERR_CANCELLED) {
24902ac6454SAndrew Thompson 			/* try to clear stall first */
25002ac6454SAndrew Thompson 			xfer->flags.stall_pipe = 1;
25102ac6454SAndrew Thompson 			goto tr_setup;
25202ac6454SAndrew Thompson 		}
25302ac6454SAndrew Thompson 		return;
25402ac6454SAndrew Thompson 
25502ac6454SAndrew Thompson 	}
25602ac6454SAndrew Thompson }
25702ac6454SAndrew Thompson 
25802ac6454SAndrew Thompson static void
25902ac6454SAndrew Thompson uark_bulk_read_callback(struct usb2_xfer *xfer)
26002ac6454SAndrew Thompson {
26102ac6454SAndrew Thompson 	struct uark_softc *sc = xfer->priv_sc;
26202ac6454SAndrew Thompson 
26302ac6454SAndrew Thompson 	switch (USB_GET_STATE(xfer)) {
26402ac6454SAndrew Thompson 	case USB_ST_TRANSFERRED:
26502ac6454SAndrew Thompson 		usb2_com_put_data(&sc->sc_ucom, xfer->frbuffers, 0,
26602ac6454SAndrew Thompson 		    xfer->actlen);
26702ac6454SAndrew Thompson 
26802ac6454SAndrew Thompson 	case USB_ST_SETUP:
26902ac6454SAndrew Thompson tr_setup:
27002ac6454SAndrew Thompson 		xfer->frlengths[0] = xfer->max_data_length;
27102ac6454SAndrew Thompson 		usb2_start_hardware(xfer);
27202ac6454SAndrew Thompson 		return;
27302ac6454SAndrew Thompson 
27402ac6454SAndrew Thompson 	default:			/* Error */
27502ac6454SAndrew Thompson 		if (xfer->error != USB_ERR_CANCELLED) {
27602ac6454SAndrew Thompson 			/* try to clear stall first */
27702ac6454SAndrew Thompson 			xfer->flags.stall_pipe = 1;
27802ac6454SAndrew Thompson 			goto tr_setup;
27902ac6454SAndrew Thompson 		}
28002ac6454SAndrew Thompson 		return;
28102ac6454SAndrew Thompson 	}
28202ac6454SAndrew Thompson }
28302ac6454SAndrew Thompson 
28402ac6454SAndrew Thompson static void
28502ac6454SAndrew Thompson uark_start_read(struct usb2_com_softc *ucom)
28602ac6454SAndrew Thompson {
28702ac6454SAndrew Thompson 	struct uark_softc *sc = ucom->sc_parent;
28802ac6454SAndrew Thompson 
28902ac6454SAndrew Thompson 	usb2_transfer_start(sc->sc_xfer[UARK_BULK_DT_RD]);
29002ac6454SAndrew Thompson }
29102ac6454SAndrew Thompson 
29202ac6454SAndrew Thompson static void
29302ac6454SAndrew Thompson uark_stop_read(struct usb2_com_softc *ucom)
29402ac6454SAndrew Thompson {
29502ac6454SAndrew Thompson 	struct uark_softc *sc = ucom->sc_parent;
29602ac6454SAndrew Thompson 
29702ac6454SAndrew Thompson 	usb2_transfer_stop(sc->sc_xfer[UARK_BULK_DT_RD]);
29802ac6454SAndrew Thompson }
29902ac6454SAndrew Thompson 
30002ac6454SAndrew Thompson static void
30102ac6454SAndrew Thompson uark_start_write(struct usb2_com_softc *ucom)
30202ac6454SAndrew Thompson {
30302ac6454SAndrew Thompson 	struct uark_softc *sc = ucom->sc_parent;
30402ac6454SAndrew Thompson 
30502ac6454SAndrew Thompson 	usb2_transfer_start(sc->sc_xfer[UARK_BULK_DT_WR]);
30602ac6454SAndrew Thompson }
30702ac6454SAndrew Thompson 
30802ac6454SAndrew Thompson static void
30902ac6454SAndrew Thompson uark_stop_write(struct usb2_com_softc *ucom)
31002ac6454SAndrew Thompson {
31102ac6454SAndrew Thompson 	struct uark_softc *sc = ucom->sc_parent;
31202ac6454SAndrew Thompson 
31302ac6454SAndrew Thompson 	usb2_transfer_stop(sc->sc_xfer[UARK_BULK_DT_WR]);
31402ac6454SAndrew Thompson }
31502ac6454SAndrew Thompson 
31602ac6454SAndrew Thompson static int
31702ac6454SAndrew Thompson uark_pre_param(struct usb2_com_softc *ucom, struct termios *t)
31802ac6454SAndrew Thompson {
31902ac6454SAndrew Thompson 	if ((t->c_ospeed < 300) || (t->c_ospeed > 115200))
32002ac6454SAndrew Thompson 		return (EINVAL);
32102ac6454SAndrew Thompson 	return (0);
32202ac6454SAndrew Thompson }
32302ac6454SAndrew Thompson 
32402ac6454SAndrew Thompson static void
32502ac6454SAndrew Thompson uark_cfg_param(struct usb2_com_softc *ucom, struct termios *t)
32602ac6454SAndrew Thompson {
32702ac6454SAndrew Thompson 	struct uark_softc *sc = ucom->sc_parent;
32802ac6454SAndrew Thompson 	uint32_t speed = t->c_ospeed;
32902ac6454SAndrew Thompson 	uint16_t data;
33002ac6454SAndrew Thompson 
33102ac6454SAndrew Thompson 	/*
33202ac6454SAndrew Thompson 	 * NOTE: When reverse computing the baud rate from the "data" all
33302ac6454SAndrew Thompson 	 * allowed baud rates are within 3% of the initial baud rate.
33402ac6454SAndrew Thompson 	 */
33502ac6454SAndrew Thompson 	data = (UARK_BAUD_REF + (speed / 2)) / speed;
33602ac6454SAndrew Thompson 
33702ac6454SAndrew Thompson 	uark_cfg_write(sc, 3, 0x83);
33802ac6454SAndrew Thompson 	uark_cfg_write(sc, 0, data & 0xFF);
33902ac6454SAndrew Thompson 	uark_cfg_write(sc, 1, data >> 8);
34002ac6454SAndrew Thompson 	uark_cfg_write(sc, 3, 0x03);
34102ac6454SAndrew Thompson 
34202ac6454SAndrew Thompson 	if (t->c_cflag & CSTOPB)
34302ac6454SAndrew Thompson 		data = UARK_STOP_BITS_2;
34402ac6454SAndrew Thompson 	else
34502ac6454SAndrew Thompson 		data = UARK_STOP_BITS_1;
34602ac6454SAndrew Thompson 
34702ac6454SAndrew Thompson 	if (t->c_cflag & PARENB) {
34802ac6454SAndrew Thompson 		if (t->c_cflag & PARODD)
34902ac6454SAndrew Thompson 			data |= UARK_PARITY_ODD;
35002ac6454SAndrew Thompson 		else
35102ac6454SAndrew Thompson 			data |= UARK_PARITY_EVEN;
35202ac6454SAndrew Thompson 	} else
35302ac6454SAndrew Thompson 		data |= UARK_PARITY_NONE;
35402ac6454SAndrew Thompson 
35502ac6454SAndrew Thompson 	switch (t->c_cflag & CSIZE) {
35602ac6454SAndrew Thompson 	case CS5:
35702ac6454SAndrew Thompson 		data |= UARK_SET_DATA_BITS(5);
35802ac6454SAndrew Thompson 		break;
35902ac6454SAndrew Thompson 	case CS6:
36002ac6454SAndrew Thompson 		data |= UARK_SET_DATA_BITS(6);
36102ac6454SAndrew Thompson 		break;
36202ac6454SAndrew Thompson 	case CS7:
36302ac6454SAndrew Thompson 		data |= UARK_SET_DATA_BITS(7);
36402ac6454SAndrew Thompson 		break;
36502ac6454SAndrew Thompson 	default:
36602ac6454SAndrew Thompson 	case CS8:
36702ac6454SAndrew Thompson 		data |= UARK_SET_DATA_BITS(8);
36802ac6454SAndrew Thompson 		break;
36902ac6454SAndrew Thompson 	}
37002ac6454SAndrew Thompson 	uark_cfg_write(sc, 3, 0x00);
37102ac6454SAndrew Thompson 	uark_cfg_write(sc, 3, data);
37202ac6454SAndrew Thompson }
37302ac6454SAndrew Thompson 
37402ac6454SAndrew Thompson static void
37502ac6454SAndrew Thompson uark_cfg_get_status(struct usb2_com_softc *ucom, uint8_t *lsr, uint8_t *msr)
37602ac6454SAndrew Thompson {
37702ac6454SAndrew Thompson 	struct uark_softc *sc = ucom->sc_parent;
37802ac6454SAndrew Thompson 
37902ac6454SAndrew Thompson 	*lsr = sc->sc_lsr;
38002ac6454SAndrew Thompson 	*msr = sc->sc_msr;
38102ac6454SAndrew Thompson }
38202ac6454SAndrew Thompson 
38302ac6454SAndrew Thompson static void
38402ac6454SAndrew Thompson uark_cfg_set_break(struct usb2_com_softc *ucom, uint8_t onoff)
38502ac6454SAndrew Thompson {
38602ac6454SAndrew Thompson 	struct uark_softc *sc = ucom->sc_parent;
38702ac6454SAndrew Thompson 
38802ac6454SAndrew Thompson 	DPRINTF("onoff=%d\n", onoff);
38902ac6454SAndrew Thompson 
39002ac6454SAndrew Thompson 	uark_cfg_write(sc, 4, onoff ? 0x01 : 0x00);
39102ac6454SAndrew Thompson }
39202ac6454SAndrew Thompson 
39302ac6454SAndrew Thompson static void
39402ac6454SAndrew Thompson uark_cfg_write(struct uark_softc *sc, uint16_t index, uint16_t value)
39502ac6454SAndrew Thompson {
39602ac6454SAndrew Thompson 	struct usb2_device_request req;
39702ac6454SAndrew Thompson 	usb2_error_t err;
39802ac6454SAndrew Thompson 
39902ac6454SAndrew Thompson 	req.bmRequestType = UARK_WRITE;
40002ac6454SAndrew Thompson 	req.bRequest = UARK_REQUEST;
40102ac6454SAndrew Thompson 	USETW(req.wValue, value);
40202ac6454SAndrew Thompson 	USETW(req.wIndex, index);
40302ac6454SAndrew Thompson 	USETW(req.wLength, 0);
40402ac6454SAndrew Thompson 
40502ac6454SAndrew Thompson 	err = usb2_com_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
40602ac6454SAndrew Thompson 	    &req, NULL, 0, 1000);
40702ac6454SAndrew Thompson 	if (err) {
40802ac6454SAndrew Thompson 		DPRINTFN(0, "device request failed, err=%s "
40902ac6454SAndrew Thompson 		    "(ignored)\n", usb2_errstr(err));
41002ac6454SAndrew Thompson 	}
41102ac6454SAndrew Thompson }
412