/* $NetBSD: uvscom.c,v 1.40 2022/11/01 19:24:31 andvar Exp $ */ /*- * Copyright (c) 2001-2002, Shunsuke Akiyama . * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD: src/sys/dev/usb/uvscom.c,v 1.1 2002/03/18 18:23:39 joe Exp $ */ /* * uvscom: SUNTAC Slipper U VS-10U driver. * Slipper U is a PC card to USB converter for data communication card * adapter. It supports DDI Pocket's Air H" C@rd, C@rd H" 64, NTT's P-in, * P-in m@ater and various data communication card adapters. */ #include __KERNEL_RCSID(0, "$NetBSD: uvscom.c,v 1.40 2022/11/01 19:24:31 andvar Exp $"); #ifdef _KERNEL_OPT #include "opt_usb.h" #endif #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef UVSCOM_DEBUG static int uvscomdebug = 1; #define DPRINTFN(n, x) do { \ if (uvscomdebug > (n)) \ printf x; \ } while (0) #else #define DPRINTFN(n, x) #endif #define DPRINTF(x) DPRINTFN(0, x) #define UVSCOM_CONFIG_INDEX 0 #define UVSCOM_IFACE_INDEX 0 #define UVSCOM_INTR_INTERVAL 100 /* mS */ #define UVSCOM_UNIT_WAIT 5 /* Request */ #define UVSCOM_SET_SPEED 0x10 #define UVSCOM_LINE_CTL 0x11 #define UVSCOM_SET_PARAM 0x12 #define UVSCOM_READ_STATUS 0xd0 #define UVSCOM_SHUTDOWN 0xe0 /* UVSCOM_SET_SPEED parameters */ #define UVSCOM_SPEED_150BPS 0x00 #define UVSCOM_SPEED_300BPS 0x01 #define UVSCOM_SPEED_600BPS 0x02 #define UVSCOM_SPEED_1200BPS 0x03 #define UVSCOM_SPEED_2400BPS 0x04 #define UVSCOM_SPEED_4800BPS 0x05 #define UVSCOM_SPEED_9600BPS 0x06 #define UVSCOM_SPEED_19200BPS 0x07 #define UVSCOM_SPEED_38400BPS 0x08 #define UVSCOM_SPEED_57600BPS 0x09 #define UVSCOM_SPEED_115200BPS 0x0a /* UVSCOM_LINE_CTL parameters */ #define UVSCOM_BREAK 0x40 #define UVSCOM_RTS 0x02 #define UVSCOM_DTR 0x01 #define UVSCOM_LINE_INIT 0x08 /* UVSCOM_SET_PARAM parameters */ #define UVSCOM_DATA_MASK 0x03 #define UVSCOM_DATA_BIT_8 0x03 #define UVSCOM_DATA_BIT_7 0x02 #define UVSCOM_DATA_BIT_6 0x01 #define UVSCOM_DATA_BIT_5 0x00 #define UVSCOM_STOP_MASK 0x04 #define UVSCOM_STOP_BIT_2 0x04 #define UVSCOM_STOP_BIT_1 0x00 #define UVSCOM_PARITY_MASK 0x18 #define UVSCOM_PARITY_EVEN 0x18 #if 0 #define UVSCOM_PARITY_UNK 0x10 #endif #define UVSCOM_PARITY_ODD 0x08 #define UVSCOM_PARITY_NONE 0x00 /* Status bits */ #define UVSCOM_TXRDY 0x04 #define UVSCOM_RXRDY 0x01 #define UVSCOM_DCD 0x08 #define UVSCOM_NOCARD 0x04 #define UVSCOM_DSR 0x02 #define UVSCOM_CTS 0x01 #define UVSCOM_USTAT_MASK (UVSCOM_NOCARD | UVSCOM_DSR | UVSCOM_CTS) struct uvscom_softc { device_t sc_dev; /* base device */ struct usbd_device * sc_udev; /* USB device */ struct usbd_interface * sc_iface; /* interface */ int sc_iface_number;/* interface number */ struct usbd_interface * sc_intr_iface; /* interrupt interface */ int sc_intr_number; /* interrupt number */ struct usbd_pipe * sc_intr_pipe; /* interrupt pipe */ u_char *sc_intr_buf; /* interrupt buffer */ int sc_isize; u_char sc_dtr; /* current DTR state */ u_char sc_rts; /* current RTS state */ u_char sc_lsr; /* Local status register */ u_char sc_msr; /* uvscom status register */ uint16_t sc_lcr; /* Line control */ u_char sc_usr; /* unit status */ device_t sc_subdev; /* ucom device */ bool sc_dying; /* disconnecting */ }; /* * These are the maximum number of bytes transferred per frame. * The output buffer size cannot be increased due to the size encoding. */ #define UVSCOMIBUFSIZE 512 #define UVSCOMOBUFSIZE 64 static usbd_status uvscom_readstat(struct uvscom_softc *); static usbd_status uvscom_shutdown(struct uvscom_softc *); static usbd_status uvscom_reset(struct uvscom_softc *); static usbd_status uvscom_set_line_coding(struct uvscom_softc *, uint16_t, uint16_t); static usbd_status uvscom_set_line(struct uvscom_softc *, uint16_t); static usbd_status uvscom_set_crtscts(struct uvscom_softc *); static void uvscom_get_status(void *, int, u_char *, u_char *); static void uvscom_dtr(struct uvscom_softc *, int); static void uvscom_rts(struct uvscom_softc *, int); static void uvscom_break(struct uvscom_softc *, int); static void uvscom_set(void *, int, int, int); static void uvscom_intr(struct usbd_xfer *, void *, usbd_status); static int uvscom_param(void *, int, struct termios *); static int uvscom_open(void *, int); static void uvscom_close(void *, int); static const struct ucom_methods uvscom_methods = { .ucom_get_status = uvscom_get_status, .ucom_set = uvscom_set, .ucom_param = uvscom_param, .ucom_ioctl = NULL, /* TODO */ .ucom_open = uvscom_open, .ucom_close = uvscom_close, }; static const struct usb_devno uvscom_devs [] = { /* SUNTAC U-Cable type A4 */ { USB_VENDOR_SUNTAC, USB_PRODUCT_SUNTAC_AS144L4 }, /* SUNTAC U-Cable type D2 */ { USB_VENDOR_SUNTAC, USB_PRODUCT_SUNTAC_DS96L }, /* SUNTAC U-Cable type P1 */ { USB_VENDOR_SUNTAC, USB_PRODUCT_SUNTAC_PS64P1 }, /* SUNTAC Slipper U */ { USB_VENDOR_SUNTAC, USB_PRODUCT_SUNTAC_VS10U }, /* SUNTAC Ir-Trinity */ { USB_VENDOR_SUNTAC, USB_PRODUCT_SUNTAC_IS96U }, }; #define uvscom_lookup(v, p) usb_lookup(uvscom_devs, v, p) static int uvscom_match(device_t, cfdata_t, void *); static void uvscom_attach(device_t, device_t, void *); static void uvscom_childdet(device_t, device_t); static int uvscom_detach(device_t, int); CFATTACH_DECL2_NEW(uvscom, sizeof(struct uvscom_softc), uvscom_match, uvscom_attach, uvscom_detach, NULL, NULL, uvscom_childdet); static int uvscom_match(device_t parent, cfdata_t match, void *aux) { struct usb_attach_arg *uaa = aux; return uvscom_lookup(uaa->uaa_vendor, uaa->uaa_product) != NULL ? UMATCH_VENDOR_PRODUCT : UMATCH_NONE; } static void uvscom_attach(device_t parent, device_t self, void *aux) { struct uvscom_softc *sc = device_private(self); struct usb_attach_arg *uaa = aux; struct usbd_device *dev = uaa->uaa_device; usb_config_descriptor_t *cdesc; usb_interface_descriptor_t *id; usb_endpoint_descriptor_t *ed; char *devinfop; usbd_status err; int i; struct ucom_attach_args ucaa; aprint_naive("\n"); aprint_normal("\n"); devinfop = usbd_devinfo_alloc(dev, 0); aprint_normal_dev(self, "%s\n", devinfop); usbd_devinfo_free(devinfop); sc->sc_dev = self; sc->sc_udev = dev; sc->sc_dying = false; DPRINTF(("uvscom attach: sc = %p\n", sc)); /* initialize endpoints */ ucaa.ucaa_bulkin = ucaa.ucaa_bulkout = -1; sc->sc_intr_number = -1; sc->sc_intr_pipe = NULL; /* Move the device into the configured state. */ err = usbd_set_config_index(dev, UVSCOM_CONFIG_INDEX, 1); if (err) { aprint_error_dev(self, "failed to set configuration, err=%s\n", usbd_errstr(err)); sc->sc_dying = true; return; } /* get the config descriptor */ cdesc = usbd_get_config_descriptor(sc->sc_udev); if (cdesc == NULL) { aprint_error_dev(self, "failed to get configuration descriptor\n"); sc->sc_dying = true; return; } /* get the common interface */ err = usbd_device2interface_handle(dev, UVSCOM_IFACE_INDEX, &sc->sc_iface); if (err) { aprint_error_dev(self, "failed to get interface, err=%s\n", usbd_errstr(err)); sc->sc_dying = true; return; } id = usbd_get_interface_descriptor(sc->sc_iface); sc->sc_iface_number = id->bInterfaceNumber; /* Find endpoints */ for (i = 0; i < id->bNumEndpoints; i++) { ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i); if (ed == NULL) { aprint_error_dev(self, "no endpoint descriptor for %d\n", i); sc->sc_dying = true; return; } if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { ucaa.ucaa_bulkin = ed->bEndpointAddress; } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { ucaa.ucaa_bulkout = ed->bEndpointAddress; } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { sc->sc_intr_number = ed->bEndpointAddress; sc->sc_isize = UGETW(ed->wMaxPacketSize); } } if (ucaa.ucaa_bulkin == -1) { aprint_error_dev(self, "Could not find data bulk in\n"); sc->sc_dying = true; return; } if (ucaa.ucaa_bulkout == -1) { aprint_error_dev(self, "Could not find data bulk out\n"); sc->sc_dying = true; return; } if (sc->sc_intr_number == -1) { aprint_error_dev(self, "Could not find interrupt in\n"); sc->sc_dying = true; return; } sc->sc_dtr = sc->sc_rts = 0; sc->sc_lcr = UVSCOM_LINE_INIT; ucaa.ucaa_portno = UCOM_UNK_PORTNO; /* ucaa_bulkin, ucaa_bulkout set above */ ucaa.ucaa_ibufsize = UVSCOMIBUFSIZE; ucaa.ucaa_obufsize = UVSCOMOBUFSIZE; ucaa.ucaa_ibufsizepad = UVSCOMIBUFSIZE; ucaa.ucaa_opkthdrlen = 0; ucaa.ucaa_device = dev; ucaa.ucaa_iface = sc->sc_iface; ucaa.ucaa_methods = &uvscom_methods; ucaa.ucaa_arg = sc; ucaa.ucaa_info = NULL; err = uvscom_reset(sc); if (err) { aprint_error_dev(self, "reset failed, %s\n", usbd_errstr(err)); sc->sc_dying = true; return; } DPRINTF(("uvscom: in = %#x out = %#x intr = %#x\n", ucaa.ucaa_bulkin, ucaa.ucaa_bulkout, sc->sc_intr_number)); usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, sc->sc_dev); DPRINTF(("uplcom: in=%#x out=%#x intr=%#x\n", ucaa.ucaa_bulkin, ucaa.ucaa_bulkout, sc->sc_intr_number )); sc->sc_subdev = config_found(self, &ucaa, ucomprint, CFARGS(.submatch = ucomsubmatch)); return; } static void uvscom_childdet(device_t self, device_t child) { struct uvscom_softc *sc = device_private(self); KASSERT(sc->sc_subdev == child); sc->sc_subdev = NULL; } static void uvscom_close_pipe(struct uvscom_softc *sc) { if (sc->sc_intr_pipe != NULL) { usbd_abort_pipe(sc->sc_intr_pipe); usbd_close_pipe(sc->sc_intr_pipe); sc->sc_intr_pipe = NULL; } if (sc->sc_intr_buf) { kmem_free(sc->sc_intr_buf, sc->sc_isize); sc->sc_intr_buf = NULL; } } static int uvscom_detach(device_t self, int flags) { struct uvscom_softc *sc = device_private(self); int rv = 0; DPRINTF(("uvscom_detach: sc = %p\n", sc)); sc->sc_dying = true; uvscom_close_pipe(sc); if (sc->sc_subdev != NULL) { rv = config_detach(sc->sc_subdev, flags); sc->sc_subdev = NULL; } usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, sc->sc_dev); return rv; } static usbd_status uvscom_readstat(struct uvscom_softc *sc) { usb_device_request_t req; usbd_status err; uint16_t r; DPRINTF(("%s: send readstat\n", device_xname(sc->sc_dev))); req.bmRequestType = UT_READ_VENDOR_DEVICE; req.bRequest = UVSCOM_READ_STATUS; USETW(req.wValue, 0); USETW(req.wIndex, 0); USETW(req.wLength, 2); err = usbd_do_request(sc->sc_udev, &req, &r); if (err) { aprint_error_dev(sc->sc_dev, "uvscom_readstat: %s\n", usbd_errstr(err)); return err; } DPRINTF(("%s: uvscom_readstat: r = %d\n", device_xname(sc->sc_dev), r)); return USBD_NORMAL_COMPLETION; } static usbd_status uvscom_shutdown(struct uvscom_softc *sc) { usb_device_request_t req; usbd_status err; DPRINTF(("%s: send shutdown\n", device_xname(sc->sc_dev))); req.bmRequestType = UT_WRITE_VENDOR_DEVICE; req.bRequest = UVSCOM_SHUTDOWN; USETW(req.wValue, 0); USETW(req.wIndex, 0); USETW(req.wLength, 0); err = usbd_do_request(sc->sc_udev, &req, NULL); if (err) { aprint_error_dev(sc->sc_dev, "uvscom_shutdown: %s\n", usbd_errstr(err)); return err; } return USBD_NORMAL_COMPLETION; } static usbd_status uvscom_reset(struct uvscom_softc *sc) { DPRINTF(("%s: uvscom_reset\n", device_xname(sc->sc_dev))); return USBD_NORMAL_COMPLETION; } static usbd_status uvscom_set_crtscts(struct uvscom_softc *sc) { DPRINTF(("%s: uvscom_set_crtscts\n", device_xname(sc->sc_dev))); return USBD_NORMAL_COMPLETION; } static usbd_status uvscom_set_line(struct uvscom_softc *sc, uint16_t line) { usb_device_request_t req; usbd_status err; DPRINTF(("%s: uvscom_set_line: %04x\n", device_xname(sc->sc_dev), line)); req.bmRequestType = UT_WRITE_VENDOR_DEVICE; req.bRequest = UVSCOM_LINE_CTL; USETW(req.wValue, line); USETW(req.wIndex, 0); USETW(req.wLength, 0); err = usbd_do_request(sc->sc_udev, &req, NULL); if (err) { aprint_error_dev(sc->sc_dev, "uvscom_set_line: %s\n", usbd_errstr(err)); return err; } return USBD_NORMAL_COMPLETION; } static usbd_status uvscom_set_line_coding(struct uvscom_softc *sc, uint16_t lsp, uint16_t ls) { usb_device_request_t req; usbd_status err; DPRINTF(("%s: uvscom_set_line_coding: %02x %02x\n", device_xname(sc->sc_dev), lsp, ls)); req.bmRequestType = UT_WRITE_VENDOR_DEVICE; req.bRequest = UVSCOM_SET_SPEED; USETW(req.wValue, lsp); USETW(req.wIndex, 0); USETW(req.wLength, 0); err = usbd_do_request(sc->sc_udev, &req, NULL); if (err) { aprint_error_dev(sc->sc_dev, "uvscom_set_line_coding: %s\n", usbd_errstr(err)); return err; } req.bmRequestType = UT_WRITE_VENDOR_DEVICE; req.bRequest = UVSCOM_SET_PARAM; USETW(req.wValue, ls); USETW(req.wIndex, 0); USETW(req.wLength, 0); err = usbd_do_request(sc->sc_udev, &req, NULL); if (err) { aprint_error_dev(sc->sc_dev, "uvscom_set_line_coding: %s\n", usbd_errstr(err)); return err; } return USBD_NORMAL_COMPLETION; } static void uvscom_dtr(struct uvscom_softc *sc, int onoff) { DPRINTF(("%s: uvscom_dtr: onoff = %d\n", device_xname(sc->sc_dev), onoff)); if (sc->sc_dtr == onoff) return; /* no change */ sc->sc_dtr = onoff; if (onoff) SET(sc->sc_lcr, UVSCOM_DTR); else CLR(sc->sc_lcr, UVSCOM_DTR); uvscom_set_line(sc, sc->sc_lcr); } static void uvscom_rts(struct uvscom_softc *sc, int onoff) { DPRINTF(("%s: uvscom_rts: onoff = %d\n", device_xname(sc->sc_dev), onoff)); if (sc->sc_rts == onoff) return; /* no change */ sc->sc_rts = onoff; if (onoff) SET(sc->sc_lcr, UVSCOM_RTS); else CLR(sc->sc_lcr, UVSCOM_RTS); uvscom_set_line(sc, sc->sc_lcr); } static void uvscom_break(struct uvscom_softc *sc, int onoff) { DPRINTF(("%s: uvscom_break: onoff = %d\n", device_xname(sc->sc_dev), onoff)); if (onoff) uvscom_set_line(sc, SET(sc->sc_lcr, UVSCOM_BREAK)); } static void uvscom_set(void *addr, int portno, int reg, int onoff) { struct uvscom_softc *sc = addr; if (sc->sc_dying) return; switch (reg) { case UCOM_SET_DTR: uvscom_dtr(sc, onoff); break; case UCOM_SET_RTS: uvscom_rts(sc, onoff); break; case UCOM_SET_BREAK: uvscom_break(sc, onoff); break; default: break; } } static int uvscom_param(void *addr, int portno, struct termios *t) { struct uvscom_softc *sc = addr; usbd_status err; uint16_t lsp; uint16_t ls; DPRINTF(("%s: uvscom_param: sc = %p\n", device_xname(sc->sc_dev), sc)); if (sc->sc_dying) return EIO; ls = 0; switch (t->c_ospeed) { case B150: lsp = UVSCOM_SPEED_150BPS; break; case B300: lsp = UVSCOM_SPEED_300BPS; break; case B600: lsp = UVSCOM_SPEED_600BPS; break; case B1200: lsp = UVSCOM_SPEED_1200BPS; break; case B2400: lsp = UVSCOM_SPEED_2400BPS; break; case B4800: lsp = UVSCOM_SPEED_4800BPS; break; case B9600: lsp = UVSCOM_SPEED_9600BPS; break; case B19200: lsp = UVSCOM_SPEED_19200BPS; break; case B38400: lsp = UVSCOM_SPEED_38400BPS; break; case B57600: lsp = UVSCOM_SPEED_57600BPS; break; case B115200: lsp = UVSCOM_SPEED_115200BPS; break; default: return EIO; } if (ISSET(t->c_cflag, CSTOPB)) SET(ls, UVSCOM_STOP_BIT_2); else SET(ls, UVSCOM_STOP_BIT_1); if (ISSET(t->c_cflag, PARENB)) { if (ISSET(t->c_cflag, PARODD)) SET(ls, UVSCOM_PARITY_ODD); else SET(ls, UVSCOM_PARITY_EVEN); } else SET(ls, UVSCOM_PARITY_NONE); switch (ISSET(t->c_cflag, CSIZE)) { case CS5: SET(ls, UVSCOM_DATA_BIT_5); break; case CS6: SET(ls, UVSCOM_DATA_BIT_6); break; case CS7: SET(ls, UVSCOM_DATA_BIT_7); break; case CS8: SET(ls, UVSCOM_DATA_BIT_8); break; default: return EIO; } err = uvscom_set_line_coding(sc, lsp, ls); if (err) return EIO; if (ISSET(t->c_cflag, CRTSCTS)) { err = uvscom_set_crtscts(sc); if (err) return EIO; } return 0; } static int uvscom_open(void *addr, int portno) { struct uvscom_softc *sc = addr; int err; int i; if (sc->sc_dying) return EIO; DPRINTF(("uvscom_open: sc = %p\n", sc)); if (sc->sc_intr_number != -1 && sc->sc_intr_pipe == NULL) { DPRINTF(("uvscom_open: open interrupt pipe.\n")); sc->sc_usr = 0; /* clear unit status */ err = uvscom_readstat(sc); if (err) { DPRINTF(("%s: uvscom_open: readstat failed\n", device_xname(sc->sc_dev))); return EIO; } sc->sc_intr_buf = kmem_alloc(sc->sc_isize, KM_SLEEP); err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_intr_number, USBD_SHORT_XFER_OK, &sc->sc_intr_pipe, sc, sc->sc_intr_buf, sc->sc_isize, uvscom_intr, UVSCOM_INTR_INTERVAL); if (err) { aprint_error_dev(sc->sc_dev, "cannot open interrupt pipe (addr %d)\n", sc->sc_intr_number); return EIO; } } else { DPRINTF(("uvscom_open: did not open interrupt pipe.\n")); } if ((sc->sc_usr & UVSCOM_USTAT_MASK) == 0) { /* unit is not ready */ for (i = UVSCOM_UNIT_WAIT; i > 0; --i) { kpause("uvsopen", false, hz, NULL); if (ISSET(sc->sc_usr, UVSCOM_USTAT_MASK)) break; } if (i == 0) { DPRINTF(("%s: unit is not ready\n", device_xname(sc->sc_dev))); return EIO; } /* check PC card was inserted */ if (ISSET(sc->sc_usr, UVSCOM_NOCARD)) { DPRINTF(("%s: no card\n", device_xname(sc->sc_dev))); return EIO; } } return 0; } static void uvscom_close(void *addr, int portno) { struct uvscom_softc *sc = addr; DPRINTF(("uvscom_close: close\n")); if (sc->sc_dying) return; uvscom_shutdown(sc); uvscom_close_pipe(sc); } static void uvscom_intr(struct usbd_xfer *xfer, void *priv, usbd_status status) { struct uvscom_softc *sc = priv; u_char *buf = sc->sc_intr_buf; u_char pstatus; if (sc->sc_dying) return; if (status != USBD_NORMAL_COMPLETION) { if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) return; aprint_error_dev(sc->sc_dev, "uvscom_intr: abnormal status: %s\n", usbd_errstr(status)); usbd_clear_endpoint_stall_async(sc->sc_intr_pipe); return; } DPRINTFN(2, ("%s: uvscom status = %02x %02x\n", device_xname(sc->sc_dev), buf[0], buf[1])); sc->sc_lsr = sc->sc_msr = 0; sc->sc_usr = buf[1]; pstatus = buf[0]; if (ISSET(pstatus, UVSCOM_TXRDY)) SET(sc->sc_lsr, ULSR_TXRDY); if (ISSET(pstatus, UVSCOM_RXRDY)) SET(sc->sc_lsr, ULSR_RXRDY); pstatus = buf[1]; if (ISSET(pstatus, UVSCOM_CTS)) SET(sc->sc_msr, UMSR_CTS); if (ISSET(pstatus, UVSCOM_DSR)) SET(sc->sc_msr, UMSR_DSR); if (ISSET(pstatus, UVSCOM_DCD)) SET(sc->sc_msr, UMSR_DCD); ucom_status_change(device_private(sc->sc_subdev)); } static void uvscom_get_status(void *addr, int portno, u_char *lsr, u_char *msr) { struct uvscom_softc *sc = addr; if (sc->sc_dying) return; *lsr = sc->sc_lsr; *msr = sc->sc_msr; }