| Current Path : /sys/dev/usb/serial/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : //sys/dev/usb/serial/uslcom.c |
/* $OpenBSD: uslcom.c,v 1.17 2007/11/24 10:52:12 jsg Exp $ */
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: release/9.1.0/sys/dev/usb/serial/uslcom.c 229082 2011-12-31 13:12:29Z hselasky $");
/*
* Copyright (c) 2006 Jonathan Gray <jsg@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/stdint.h>
#include <sys/stddef.h>
#include <sys/param.h>
#include <sys/queue.h>
#include <sys/types.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <sys/module.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/condvar.h>
#include <sys/sysctl.h>
#include <sys/sx.h>
#include <sys/unistd.h>
#include <sys/callout.h>
#include <sys/malloc.h>
#include <sys/priv.h>
#include <dev/usb/usb.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usbdi_util.h>
#include <dev/usb/usb_ioctl.h>
#include "usbdevs.h"
#define USB_DEBUG_VAR uslcom_debug
#include <dev/usb/usb_debug.h>
#include <dev/usb/usb_process.h>
#include <dev/usb/serial/usb_serial.h>
#ifdef USB_DEBUG
static int uslcom_debug = 0;
SYSCTL_NODE(_hw_usb, OID_AUTO, uslcom, CTLFLAG_RW, 0, "USB uslcom");
SYSCTL_INT(_hw_usb_uslcom, OID_AUTO, debug, CTLFLAG_RW,
&uslcom_debug, 0, "Debug level");
#endif
#define USLCOM_BULK_BUF_SIZE 1024
#define USLCOM_CONFIG_INDEX 0
#define USLCOM_IFACE_INDEX 0
#define USLCOM_SET_DATA_BITS(x) ((x) << 8)
/* Request types */
#define USLCOM_WRITE 0x41
#define USLCOM_READ 0xc1
/* Request codes */
#define USLCOM_UART 0x00
#define USLCOM_BAUD_RATE 0x01
#define USLCOM_DATA 0x03
#define USLCOM_BREAK 0x05
#define USLCOM_CTRL 0x07
#define USLCOM_RCTRL 0x08
#define USLCOM_SET_FLOWCTRL 0x13
#define USLCOM_VENDOR_SPECIFIC 0xff
/* USLCOM_UART values */
#define USLCOM_UART_DISABLE 0x00
#define USLCOM_UART_ENABLE 0x01
/* USLCOM_CTRL/USLCOM_RCTRL values */
#define USLCOM_CTRL_DTR_ON 0x0001
#define USLCOM_CTRL_DTR_SET 0x0100
#define USLCOM_CTRL_RTS_ON 0x0002
#define USLCOM_CTRL_RTS_SET 0x0200
#define USLCOM_CTRL_CTS 0x0010
#define USLCOM_CTRL_DSR 0x0020
#define USLCOM_CTRL_RI 0x0040
#define USLCOM_CTRL_DCD 0x0080
/* USLCOM_BAUD_RATE values */
#define USLCOM_BAUD_REF 0x384000
/* USLCOM_DATA values */
#define USLCOM_STOP_BITS_1 0x00
#define USLCOM_STOP_BITS_2 0x02
#define USLCOM_PARITY_NONE 0x00
#define USLCOM_PARITY_ODD 0x10
#define USLCOM_PARITY_EVEN 0x20
#define USLCOM_PORT_NO 0x0000
/* USLCOM_BREAK values */
#define USLCOM_BREAK_OFF 0x00
#define USLCOM_BREAK_ON 0x01
/* USLCOM_SET_FLOWCTRL values - 1st word */
#define USLCOM_FLOW_DTR_ON 0x00000001 /* DTR static active */
#define USLCOM_FLOW_CTS_HS 0x00000008 /* CTS handshake */
/* USLCOM_SET_FLOWCTRL values - 2nd word */
#define USLCOM_FLOW_RTS_ON 0x00000040 /* RTS static active */
#define USLCOM_FLOW_RTS_HS 0x00000080 /* RTS handshake */
/* USLCOM_VENDOR_SPECIFIC values */
#define USLCOM_WRITE_LATCH 0x37E1
#define USLCOM_READ_LATCH 0x00C2
enum {
USLCOM_BULK_DT_WR,
USLCOM_BULK_DT_RD,
USLCOM_CTRL_DT_RD,
USLCOM_N_TRANSFER,
};
struct uslcom_softc {
struct ucom_super_softc sc_super_ucom;
struct ucom_softc sc_ucom;
struct usb_callout sc_watchdog;
struct usb_xfer *sc_xfer[USLCOM_N_TRANSFER];
struct usb_device *sc_udev;
struct mtx sc_mtx;
uint8_t sc_msr;
uint8_t sc_lsr;
};
static device_probe_t uslcom_probe;
static device_attach_t uslcom_attach;
static device_detach_t uslcom_detach;
static usb_callback_t uslcom_write_callback;
static usb_callback_t uslcom_read_callback;
static usb_callback_t uslcom_control_callback;
static void uslcom_open(struct ucom_softc *);
static void uslcom_close(struct ucom_softc *);
static void uslcom_set_dtr(struct ucom_softc *, uint8_t);
static void uslcom_set_rts(struct ucom_softc *, uint8_t);
static void uslcom_set_break(struct ucom_softc *, uint8_t);
static int uslcom_ioctl(struct ucom_softc *, uint32_t, caddr_t, int,
struct thread *);
static int uslcom_pre_param(struct ucom_softc *, struct termios *);
static void uslcom_param(struct ucom_softc *, struct termios *);
static void uslcom_get_status(struct ucom_softc *, uint8_t *, uint8_t *);
static void uslcom_start_read(struct ucom_softc *);
static void uslcom_stop_read(struct ucom_softc *);
static void uslcom_start_write(struct ucom_softc *);
static void uslcom_stop_write(struct ucom_softc *);
static void uslcom_poll(struct ucom_softc *ucom);
static const struct usb_config uslcom_config[USLCOM_N_TRANSFER] = {
[USLCOM_BULK_DT_WR] = {
.type = UE_BULK,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_OUT,
.bufsize = USLCOM_BULK_BUF_SIZE,
.flags = {.pipe_bof = 1,},
.callback = &uslcom_write_callback,
},
[USLCOM_BULK_DT_RD] = {
.type = UE_BULK,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_IN,
.bufsize = USLCOM_BULK_BUF_SIZE,
.flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
.callback = &uslcom_read_callback,
},
[USLCOM_CTRL_DT_RD] = {
.type = UE_CONTROL,
.endpoint = 0x00,
.direction = UE_DIR_ANY,
.bufsize = sizeof(struct usb_device_request) + 8,
.flags = {.pipe_bof = 1,},
.callback = &uslcom_control_callback,
.timeout = 1000, /* 1 second timeout */
},
};
static struct ucom_callback uslcom_callback = {
.ucom_cfg_open = &uslcom_open,
.ucom_cfg_close = &uslcom_close,
.ucom_cfg_get_status = &uslcom_get_status,
.ucom_cfg_set_dtr = &uslcom_set_dtr,
.ucom_cfg_set_rts = &uslcom_set_rts,
.ucom_cfg_set_break = &uslcom_set_break,
.ucom_ioctl = &uslcom_ioctl,
.ucom_cfg_param = &uslcom_param,
.ucom_pre_param = &uslcom_pre_param,
.ucom_start_read = &uslcom_start_read,
.ucom_stop_read = &uslcom_stop_read,
.ucom_start_write = &uslcom_start_write,
.ucom_stop_write = &uslcom_stop_write,
.ucom_poll = &uslcom_poll,
};
static const STRUCT_USB_HOST_ID uslcom_devs[] = {
#define USLCOM_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) }
USLCOM_DEV(BALTECH, CARDREADER),
USLCOM_DEV(CLIPSAL, 5500PCU),
USLCOM_DEV(DATAAPEX, MULTICOM),
USLCOM_DEV(DELL, DW700),
USLCOM_DEV(DIGIANSWER, ZIGBEE802154),
USLCOM_DEV(DYNASTREAM, ANTDEVBOARD),
USLCOM_DEV(DYNASTREAM, ANTDEVBOARD2),
USLCOM_DEV(DYNASTREAM, ANT2USB),
USLCOM_DEV(ELV, USBI2C),
USLCOM_DEV(FOXCONN, PIRELLI_DP_L10),
USLCOM_DEV(FOXCONN, TCOM_TC_300),
USLCOM_DEV(GEMALTO, PROXPU),
USLCOM_DEV(JABLOTRON, PC60B),
USLCOM_DEV(MEI, CASHFLOW_SC),
USLCOM_DEV(MEI, S2000),
USLCOM_DEV(JABLOTRON, PC60B),
USLCOM_DEV(OWEN, AC4),
USLCOM_DEV(PHILIPS, ACE1001),
USLCOM_DEV(PLX, CA42),
USLCOM_DEV(RENESAS, RX610),
USLCOM_DEV(SILABS, AEROCOMM),
USLCOM_DEV(SILABS, AMBER_AMB2560),
USLCOM_DEV(SILABS, ARGUSISP),
USLCOM_DEV(SILABS, ARKHAM_DS101_A),
USLCOM_DEV(SILABS, ARKHAM_DS101_M),
USLCOM_DEV(SILABS, ARYGON_MIFARE),
USLCOM_DEV(SILABS, AVIT_USB_TTL),
USLCOM_DEV(SILABS, B_G_H3000),
USLCOM_DEV(SILABS, BALLUFF_RFID),
USLCOM_DEV(SILABS, BEI_VCP),
USLCOM_DEV(SILABS, BSM7DUSB),
USLCOM_DEV(SILABS, BURNSIDE),
USLCOM_DEV(SILABS, C2_EDGE_MODEM),
USLCOM_DEV(SILABS, CP2102),
USLCOM_DEV(SILABS, CP210X_2),
USLCOM_DEV(SILABS, CRUMB128),
USLCOM_DEV(SILABS, CYGNAL),
USLCOM_DEV(SILABS, CYGNAL_DEBUG),
USLCOM_DEV(SILABS, CYGNAL_GPS),
USLCOM_DEV(SILABS, DEGREE),
USLCOM_DEV(SILABS, EMS_C1007),
USLCOM_DEV(SILABS, HELICOM),
USLCOM_DEV(SILABS, IMS_USB_RS422),
USLCOM_DEV(SILABS, INFINITY_MIC),
USLCOM_DEV(SILABS, INSYS_MODEM),
USLCOM_DEV(SILABS, KYOCERA_GPS),
USLCOM_DEV(SILABS, LIPOWSKY_HARP),
USLCOM_DEV(SILABS, LIPOWSKY_JTAG),
USLCOM_DEV(SILABS, LIPOWSKY_LIN),
USLCOM_DEV(SILABS, MC35PU),
USLCOM_DEV(SILABS, MJS_TOSLINK),
USLCOM_DEV(SILABS, MSD_DASHHAWK),
USLCOM_DEV(SILABS, POLOLU),
USLCOM_DEV(SILABS, PROCYON_AVS),
USLCOM_DEV(SILABS, SB_PARAMOUNT_ME),
USLCOM_DEV(SILABS, SUUNTO),
USLCOM_DEV(SILABS, TAMSMASTER),
USLCOM_DEV(SILABS, TELEGESYS_ETRX2),
USLCOM_DEV(SILABS, TRACIENT),
USLCOM_DEV(SILABS, TRAQMATE),
USLCOM_DEV(SILABS, USBCOUNT50),
USLCOM_DEV(SILABS, USBPULSE100),
USLCOM_DEV(SILABS, USBSCOPE50),
USLCOM_DEV(SILABS, USBWAVE12),
USLCOM_DEV(SILABS, VSTABI),
USLCOM_DEV(SILABS, WAVIT),
USLCOM_DEV(SILABS, WMRBATT),
USLCOM_DEV(SILABS, WMRRIGBLASTER),
USLCOM_DEV(SILABS, WMRRIGTALK),
USLCOM_DEV(SILABS, ZEPHYR_BIO),
USLCOM_DEV(SILABS2, DCU11CLONE),
USLCOM_DEV(SILABS3, GPRS_MODEM),
USLCOM_DEV(SILABS4, 100EU_MODEM),
USLCOM_DEV(SYNTECH, CYPHERLAB100),
USLCOM_DEV(USI, MC60),
USLCOM_DEV(VAISALA, CABLE),
USLCOM_DEV(WAGO, SERVICECABLE),
USLCOM_DEV(WAVESENSE, JAZZ),
USLCOM_DEV(WIENERPLEINBAUS, PL512),
USLCOM_DEV(WIENERPLEINBAUS, RCM),
USLCOM_DEV(WIENERPLEINBAUS, MPOD),
USLCOM_DEV(WIENERPLEINBAUS, CML),
#undef USLCOM_DEV
};
static device_method_t uslcom_methods[] = {
DEVMETHOD(device_probe, uslcom_probe),
DEVMETHOD(device_attach, uslcom_attach),
DEVMETHOD(device_detach, uslcom_detach),
{0, 0}
};
static devclass_t uslcom_devclass;
static driver_t uslcom_driver = {
.name = "uslcom",
.methods = uslcom_methods,
.size = sizeof(struct uslcom_softc),
};
DRIVER_MODULE(uslcom, uhub, uslcom_driver, uslcom_devclass, NULL, 0);
MODULE_DEPEND(uslcom, ucom, 1, 1, 1);
MODULE_DEPEND(uslcom, usb, 1, 1, 1);
MODULE_VERSION(uslcom, 1);
static void
uslcom_watchdog(void *arg)
{
struct uslcom_softc *sc = arg;
mtx_assert(&sc->sc_mtx, MA_OWNED);
usbd_transfer_start(sc->sc_xfer[USLCOM_CTRL_DT_RD]);
usb_callout_reset(&sc->sc_watchdog,
hz / 4, &uslcom_watchdog, sc);
}
static int
uslcom_probe(device_t dev)
{
struct usb_attach_arg *uaa = device_get_ivars(dev);
DPRINTFN(11, "\n");
if (uaa->usb_mode != USB_MODE_HOST) {
return (ENXIO);
}
if (uaa->info.bConfigIndex != USLCOM_CONFIG_INDEX) {
return (ENXIO);
}
if (uaa->info.bIfaceIndex != USLCOM_IFACE_INDEX) {
return (ENXIO);
}
return (usbd_lookup_id_by_uaa(uslcom_devs, sizeof(uslcom_devs), uaa));
}
static int
uslcom_attach(device_t dev)
{
struct usb_attach_arg *uaa = device_get_ivars(dev);
struct uslcom_softc *sc = device_get_softc(dev);
int error;
DPRINTFN(11, "\n");
device_set_usb_desc(dev);
mtx_init(&sc->sc_mtx, "uslcom", NULL, MTX_DEF);
usb_callout_init_mtx(&sc->sc_watchdog, &sc->sc_mtx, 0);
sc->sc_udev = uaa->device;
error = usbd_transfer_setup(uaa->device,
&uaa->info.bIfaceIndex, sc->sc_xfer, uslcom_config,
USLCOM_N_TRANSFER, sc, &sc->sc_mtx);
if (error) {
DPRINTF("one or more missing USB endpoints, "
"error=%s\n", usbd_errstr(error));
goto detach;
}
/* clear stall at first run */
mtx_lock(&sc->sc_mtx);
usbd_xfer_set_stall(sc->sc_xfer[USLCOM_BULK_DT_WR]);
usbd_xfer_set_stall(sc->sc_xfer[USLCOM_BULK_DT_RD]);
mtx_unlock(&sc->sc_mtx);
error = ucom_attach(&sc->sc_super_ucom, &sc->sc_ucom, 1, sc,
&uslcom_callback, &sc->sc_mtx);
if (error) {
goto detach;
}
ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev);
return (0);
detach:
uslcom_detach(dev);
return (ENXIO);
}
static int
uslcom_detach(device_t dev)
{
struct uslcom_softc *sc = device_get_softc(dev);
DPRINTF("sc=%p\n", sc);
ucom_detach(&sc->sc_super_ucom, &sc->sc_ucom);
usbd_transfer_unsetup(sc->sc_xfer, USLCOM_N_TRANSFER);
usb_callout_drain(&sc->sc_watchdog);
mtx_destroy(&sc->sc_mtx);
return (0);
}
static void
uslcom_open(struct ucom_softc *ucom)
{
struct uslcom_softc *sc = ucom->sc_parent;
struct usb_device_request req;
req.bmRequestType = USLCOM_WRITE;
req.bRequest = USLCOM_UART;
USETW(req.wValue, USLCOM_UART_ENABLE);
USETW(req.wIndex, USLCOM_PORT_NO);
USETW(req.wLength, 0);
if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
&req, NULL, 0, 1000)) {
DPRINTF("UART enable failed (ignored)\n");
}
/* start polling status */
uslcom_watchdog(sc);
}
static void
uslcom_close(struct ucom_softc *ucom)
{
struct uslcom_softc *sc = ucom->sc_parent;
struct usb_device_request req;
/* stop polling status */
usb_callout_stop(&sc->sc_watchdog);
req.bmRequestType = USLCOM_WRITE;
req.bRequest = USLCOM_UART;
USETW(req.wValue, USLCOM_UART_DISABLE);
USETW(req.wIndex, USLCOM_PORT_NO);
USETW(req.wLength, 0);
if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
&req, NULL, 0, 1000)) {
DPRINTF("UART disable failed (ignored)\n");
}
}
static void
uslcom_set_dtr(struct ucom_softc *ucom, uint8_t onoff)
{
struct uslcom_softc *sc = ucom->sc_parent;
struct usb_device_request req;
uint16_t ctl;
DPRINTF("onoff = %d\n", onoff);
ctl = onoff ? USLCOM_CTRL_DTR_ON : 0;
ctl |= USLCOM_CTRL_DTR_SET;
req.bmRequestType = USLCOM_WRITE;
req.bRequest = USLCOM_CTRL;
USETW(req.wValue, ctl);
USETW(req.wIndex, USLCOM_PORT_NO);
USETW(req.wLength, 0);
if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
&req, NULL, 0, 1000)) {
DPRINTF("Setting DTR failed (ignored)\n");
}
}
static void
uslcom_set_rts(struct ucom_softc *ucom, uint8_t onoff)
{
struct uslcom_softc *sc = ucom->sc_parent;
struct usb_device_request req;
uint16_t ctl;
DPRINTF("onoff = %d\n", onoff);
ctl = onoff ? USLCOM_CTRL_RTS_ON : 0;
ctl |= USLCOM_CTRL_RTS_SET;
req.bmRequestType = USLCOM_WRITE;
req.bRequest = USLCOM_CTRL;
USETW(req.wValue, ctl);
USETW(req.wIndex, USLCOM_PORT_NO);
USETW(req.wLength, 0);
if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
&req, NULL, 0, 1000)) {
DPRINTF("Setting DTR failed (ignored)\n");
}
}
static int
uslcom_pre_param(struct ucom_softc *ucom, struct termios *t)
{
if (t->c_ospeed <= 0 || t->c_ospeed > 921600)
return (EINVAL);
return (0);
}
static void
uslcom_param(struct ucom_softc *ucom, struct termios *t)
{
struct uslcom_softc *sc = ucom->sc_parent;
struct usb_device_request req;
uint32_t flowctrl[4];
uint16_t data;
DPRINTF("\n");
req.bmRequestType = USLCOM_WRITE;
req.bRequest = USLCOM_BAUD_RATE;
USETW(req.wValue, USLCOM_BAUD_REF / t->c_ospeed);
USETW(req.wIndex, USLCOM_PORT_NO);
USETW(req.wLength, 0);
if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
&req, NULL, 0, 1000)) {
DPRINTF("Set baudrate failed (ignored)\n");
}
if (t->c_cflag & CSTOPB)
data = USLCOM_STOP_BITS_2;
else
data = USLCOM_STOP_BITS_1;
if (t->c_cflag & PARENB) {
if (t->c_cflag & PARODD)
data |= USLCOM_PARITY_ODD;
else
data |= USLCOM_PARITY_EVEN;
} else
data |= USLCOM_PARITY_NONE;
switch (t->c_cflag & CSIZE) {
case CS5:
data |= USLCOM_SET_DATA_BITS(5);
break;
case CS6:
data |= USLCOM_SET_DATA_BITS(6);
break;
case CS7:
data |= USLCOM_SET_DATA_BITS(7);
break;
case CS8:
data |= USLCOM_SET_DATA_BITS(8);
break;
}
req.bmRequestType = USLCOM_WRITE;
req.bRequest = USLCOM_DATA;
USETW(req.wValue, data);
USETW(req.wIndex, USLCOM_PORT_NO);
USETW(req.wLength, 0);
if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
&req, NULL, 0, 1000)) {
DPRINTF("Set format failed (ignored)\n");
}
if (t->c_cflag & CRTSCTS) {
flowctrl[0] = htole32(USLCOM_FLOW_DTR_ON | USLCOM_FLOW_CTS_HS);
flowctrl[1] = htole32(USLCOM_FLOW_RTS_HS);
flowctrl[2] = 0;
flowctrl[3] = 0;
} else {
flowctrl[0] = htole32(USLCOM_FLOW_DTR_ON);
flowctrl[1] = htole32(USLCOM_FLOW_RTS_ON);
flowctrl[2] = 0;
flowctrl[3] = 0;
}
req.bmRequestType = USLCOM_WRITE;
req.bRequest = USLCOM_SET_FLOWCTRL;
USETW(req.wValue, 0);
USETW(req.wIndex, USLCOM_PORT_NO);
USETW(req.wLength, sizeof(flowctrl));
if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
&req, flowctrl, 0, 1000)) {
DPRINTF("Set flowcontrol failed (ignored)\n");
}
}
static void
uslcom_get_status(struct ucom_softc *ucom, uint8_t *lsr, uint8_t *msr)
{
struct uslcom_softc *sc = ucom->sc_parent;
DPRINTF("\n");
*lsr = sc->sc_lsr;
*msr = sc->sc_msr;
}
static void
uslcom_set_break(struct ucom_softc *ucom, uint8_t onoff)
{
struct uslcom_softc *sc = ucom->sc_parent;
struct usb_device_request req;
uint16_t brk = onoff ? USLCOM_BREAK_ON : USLCOM_BREAK_OFF;
req.bmRequestType = USLCOM_WRITE;
req.bRequest = USLCOM_BREAK;
USETW(req.wValue, brk);
USETW(req.wIndex, USLCOM_PORT_NO);
USETW(req.wLength, 0);
if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
&req, NULL, 0, 1000)) {
DPRINTF("Set BREAK failed (ignored)\n");
}
}
static int
uslcom_ioctl(struct ucom_softc *ucom, uint32_t cmd, caddr_t data,
int flag, struct thread *td)
{
struct uslcom_softc *sc = ucom->sc_parent;
struct usb_device_request req;
int error = 0;
uint8_t latch;
DPRINTF("cmd=0x%08x\n", cmd);
switch (cmd) {
case USB_GET_GPIO:
req.bmRequestType = USLCOM_READ;
req.bRequest = USLCOM_VENDOR_SPECIFIC;
USETW(req.wValue, USLCOM_READ_LATCH);
USETW(req.wIndex, 0);
USETW(req.wLength, sizeof(latch));
if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
&req, &latch, 0, 1000)) {
DPRINTF("Get LATCH failed\n");
error = EIO;
}
*(int *)data = latch;
break;
case USB_SET_GPIO:
req.bmRequestType = USLCOM_WRITE;
req.bRequest = USLCOM_VENDOR_SPECIFIC;
USETW(req.wValue, USLCOM_WRITE_LATCH);
USETW(req.wIndex, (*(int *)data));
USETW(req.wLength, 0);
if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
&req, NULL, 0, 1000)) {
DPRINTF("Set LATCH failed\n");
error = EIO;
}
break;
default:
DPRINTF("Unknown IOCTL\n");
error = ENOIOCTL;
break;
}
return (error);
}
static void
uslcom_write_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct uslcom_softc *sc = usbd_xfer_softc(xfer);
struct usb_page_cache *pc;
uint32_t actlen;
switch (USB_GET_STATE(xfer)) {
case USB_ST_SETUP:
case USB_ST_TRANSFERRED:
tr_setup:
pc = usbd_xfer_get_frame(xfer, 0);
if (ucom_get_data(&sc->sc_ucom, pc, 0,
USLCOM_BULK_BUF_SIZE, &actlen)) {
DPRINTF("actlen = %d\n", actlen);
usbd_xfer_set_frame_len(xfer, 0, actlen);
usbd_transfer_submit(xfer);
}
return;
default: /* Error */
if (error != USB_ERR_CANCELLED) {
/* try to clear stall first */
usbd_xfer_set_stall(xfer);
goto tr_setup;
}
return;
}
}
static void
uslcom_read_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct uslcom_softc *sc = usbd_xfer_softc(xfer);
struct usb_page_cache *pc;
int actlen;
usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
pc = usbd_xfer_get_frame(xfer, 0);
ucom_put_data(&sc->sc_ucom, pc, 0, actlen);
case USB_ST_SETUP:
tr_setup:
usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
usbd_transfer_submit(xfer);
return;
default: /* Error */
if (error != USB_ERR_CANCELLED) {
/* try to clear stall first */
usbd_xfer_set_stall(xfer);
goto tr_setup;
}
return;
}
}
static void
uslcom_control_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct uslcom_softc *sc = usbd_xfer_softc(xfer);
struct usb_page_cache *pc;
struct usb_device_request req;
uint8_t msr = 0;
uint8_t buf;
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
pc = usbd_xfer_get_frame(xfer, 1);
usbd_copy_out(pc, 0, &buf, sizeof(buf));
if (buf & USLCOM_CTRL_CTS)
msr |= SER_CTS;
if (buf & USLCOM_CTRL_DSR)
msr |= SER_DSR;
if (buf & USLCOM_CTRL_RI)
msr |= SER_RI;
if (buf & USLCOM_CTRL_DCD)
msr |= SER_DCD;
if (msr != sc->sc_msr) {
DPRINTF("status change msr=0x%02x "
"(was 0x%02x)\n", msr, sc->sc_msr);
sc->sc_msr = msr;
ucom_status_change(&sc->sc_ucom);
}
break;
case USB_ST_SETUP:
req.bmRequestType = USLCOM_READ;
req.bRequest = USLCOM_RCTRL;
USETW(req.wValue, 0);
USETW(req.wIndex, USLCOM_PORT_NO);
USETW(req.wLength, sizeof(buf));
usbd_xfer_set_frames(xfer, 2);
usbd_xfer_set_frame_len(xfer, 0, sizeof(req));
usbd_xfer_set_frame_len(xfer, 1, sizeof(buf));
pc = usbd_xfer_get_frame(xfer, 0);
usbd_copy_in(pc, 0, &req, sizeof(req));
usbd_transfer_submit(xfer);
break;
default: /* error */
if (error != USB_ERR_CANCELLED)
DPRINTF("error=%s\n", usbd_errstr(error));
break;
}
}
static void
uslcom_start_read(struct ucom_softc *ucom)
{
struct uslcom_softc *sc = ucom->sc_parent;
/* start read endpoint */
usbd_transfer_start(sc->sc_xfer[USLCOM_BULK_DT_RD]);
}
static void
uslcom_stop_read(struct ucom_softc *ucom)
{
struct uslcom_softc *sc = ucom->sc_parent;
/* stop read endpoint */
usbd_transfer_stop(sc->sc_xfer[USLCOM_BULK_DT_RD]);
}
static void
uslcom_start_write(struct ucom_softc *ucom)
{
struct uslcom_softc *sc = ucom->sc_parent;
usbd_transfer_start(sc->sc_xfer[USLCOM_BULK_DT_WR]);
}
static void
uslcom_stop_write(struct ucom_softc *ucom)
{
struct uslcom_softc *sc = ucom->sc_parent;
usbd_transfer_stop(sc->sc_xfer[USLCOM_BULK_DT_WR]);
}
static void
uslcom_poll(struct ucom_softc *ucom)
{
struct uslcom_softc *sc = ucom->sc_parent;
usbd_transfer_poll(sc->sc_xfer, USLCOM_N_TRANSFER);
}