/* $OpenBSD: uplcom.c,v 1.4 2002/05/07 18:29:18 nate Exp $ */ /* $NetBSD: uplcom.c,v 1.20 2001/07/31 12:33:11 ichiro Exp $ */ /* * Copyright (c) 2001 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Ichiro FUKUHARA (ichiro@ichiro.org). * * 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the NetBSD * Foundation, Inc. and its contributors. * 4. Neither the name of The NetBSD Foundation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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. */ /* * Simple datasheet * http://www.prolific.com.tw/download/DataSheet/pl2303_ds11.PDF * http://www.nisseisg.co.jp/jyouhou/_cp/@gif/2303.pdf * (english) * */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef UPLCOM_DEBUG #define DPRINTFN(n, x) if (uplcomdebug > (n)) logprintf x int uplcomdebug = 0; #else #define DPRINTFN(n, x) #endif #define DPRINTF(x) DPRINTFN(0, x) #define UPLCOM_CONFIG_INDEX 0 #define UPLCOM_IFACE_INDEX 0 #define UPLCOM_SECOND_IFACE_INDEX 1 #define UPLCOM_SET_REQUEST 0x01 #define UPLCOM_SET_CRTSCTS 0x41 #define RSAQ_STATUS_DSR 0x02 #define RSAQ_STATUS_DCD 0x01 struct uplcom_softc { USBBASEDEVICE sc_dev; /* base device */ usbd_device_handle sc_udev; /* USB device */ usbd_interface_handle sc_iface; /* interface */ int sc_iface_number; /* interface number */ usbd_interface_handle sc_intr_iface; /* interrupt interface */ int sc_intr_number; /* interrupt number */ usbd_pipe_handle sc_intr_pipe; /* interrupt pipe */ u_char *sc_intr_buf; /* interrupt buffer */ int sc_isize; usb_cdc_line_state_t sc_line_state; /* current line state */ u_char sc_dtr; /* current DTR state */ u_char sc_rts; /* current RTS state */ u_char sc_status; device_ptr_t sc_subdev; /* ucom device */ u_char sc_dying; /* disconnecting */ u_char sc_lsr; /* Local status register */ u_char sc_msr; /* uplcom status register */ }; /* * These are the maximum number of bytes transferred per frame. * The output buffer size cannot be increased due to the size encoding. */ #define UPLCOMIBUFSIZE 256 #define UPLCOMOBUFSIZE 256 Static usbd_status uplcom_reset(struct uplcom_softc *); Static usbd_status uplcom_set_line_coding(struct uplcom_softc *sc, usb_cdc_line_state_t *state); Static usbd_status uplcom_set_crtscts(struct uplcom_softc *); Static void uplcom_intr(usbd_xfer_handle, usbd_private_handle, usbd_status); Static void uplcom_set(void *, int, int, int); Static void uplcom_dtr(struct uplcom_softc *, int); Static void uplcom_rts(struct uplcom_softc *, int); Static void uplcom_break(struct uplcom_softc *, int); Static void uplcom_set_line_state(struct uplcom_softc *); Static void uplcom_get_status(void *, int portno, u_char *lsr, u_char *msr); #if TODO Static int uplcom_ioctl(void *, int, u_long, caddr_t, int, struct proc *); #endif Static int uplcom_param(void *, int, struct termios *); Static int uplcom_open(void *, int); Static void uplcom_close(void *, int); struct ucom_methods uplcom_methods = { uplcom_get_status, uplcom_set, uplcom_param, NULL, /* uplcom_ioctl, TODO */ uplcom_open, uplcom_close, NULL, NULL, }; static const struct uplcom_product { uint16_t vendor; uint16_t product; } uplcom_products [] = { /* I/O DATA USB-RSAQ2 */ { USB_VENDOR_PROLIFIC, USB_PRODUCT_PROLIFIC_RSAQ2 }, /* I/O DATA USB-RSAQ */ { USB_VENDOR_IODATA, USB_PRODUCT_IODATA_USBRSAQ }, /* PLANEX USB-RS232 URS-03 */ { USB_VENDOR_ATEN, USB_PRODUCT_ATEN_UC232A }, /* IOGEAR/ATEN UC-232A */ { USB_VENDOR_PROLIFIC, USB_PRODUCT_PROLIFIC_PL2303 }, { 0, 0 } }; USB_DECLARE_DRIVER(uplcom); USB_MATCH(uplcom) { USB_MATCH_START(uplcom, uaa); int i; if (uaa->iface != NULL) return (UMATCH_NONE); for (i = 0; uplcom_products[i].vendor != 0; i++) { if (uplcom_products[i].vendor == uaa->vendor && uplcom_products[i].product == uaa->product) { return (UMATCH_VENDOR_PRODUCT); } } return (UMATCH_NONE); } USB_ATTACH(uplcom) { USB_ATTACH_START(uplcom, sc, uaa); usbd_device_handle dev = uaa->device; usb_config_descriptor_t *cdesc; usb_interface_descriptor_t *id; usb_endpoint_descriptor_t *ed; char devinfo[1024]; char *devname = USBDEVNAME(sc->sc_dev); usbd_status err; int i; struct ucom_attach_args uca; usbd_devinfo(dev, 0, devinfo); USB_ATTACH_SETUP; printf("%s: %s\n", devname, devinfo); sc->sc_udev = dev; DPRINTF(("\n\nuplcom attach: sc=%p\n", sc)); /* initialize endpoints */ uca.bulkin = uca.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, UPLCOM_CONFIG_INDEX, 1); if (err) { printf("\n%s: failed to set configuration, err=%s\n", devname, usbd_errstr(err)); sc->sc_dying = 1; USB_ATTACH_ERROR_RETURN; } /* get the config descriptor */ cdesc = usbd_get_config_descriptor(sc->sc_udev); if (cdesc == NULL) { printf("%s: failed to get configuration descriptor\n", USBDEVNAME(sc->sc_dev)); sc->sc_dying = 1; USB_ATTACH_ERROR_RETURN; } /* get the (first/common) interface */ err = usbd_device2interface_handle(dev, UPLCOM_IFACE_INDEX, &sc->sc_iface); if (err) { printf("\n%s: failed to get interface, err=%s\n", devname, usbd_errstr(err)); sc->sc_dying = 1; USB_ATTACH_ERROR_RETURN; } /* Find the interrupt endpoints */ id = usbd_get_interface_descriptor(sc->sc_iface); sc->sc_iface_number = id->bInterfaceNumber; for (i = 0; i < id->bNumEndpoints; i++) { ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i); if (ed == NULL) { printf("%s: no endpoint descriptor for %d\n", USBDEVNAME(sc->sc_dev), i); sc->sc_dying = 1; USB_ATTACH_ERROR_RETURN; } 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 (sc->sc_intr_number== -1) { printf("%s: Could not find interrupt in\n", USBDEVNAME(sc->sc_dev)); sc->sc_dying = 1; USB_ATTACH_ERROR_RETURN; } /* keep interface for interrupt */ sc->sc_intr_iface = sc->sc_iface; /* * USB-RSAQ1 has two interface * * USB-RSAQ1 | USB-RSAQ2 * -----------------+----------------- * Interface 0 |Interface 0 * Interrupt(0x81) | Interrupt(0x81) * -----------------+ BulkIN(0x02) * Interface 1 | BulkOUT(0x83) * BulkIN(0x02) | * BulkOUT(0x83) | */ if (cdesc->bNumInterface == 2) { err = usbd_device2interface_handle(dev, UPLCOM_SECOND_IFACE_INDEX, &sc->sc_iface); if (err) { printf("\n%s: failed to get second interface, err=%s\n", devname, usbd_errstr(err)); sc->sc_dying = 1; USB_ATTACH_ERROR_RETURN; } } /* Find the bulk{in,out} endpoints */ id = usbd_get_interface_descriptor(sc->sc_iface); sc->sc_iface_number = id->bInterfaceNumber; for (i = 0; i < id->bNumEndpoints; i++) { ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i); if (ed == NULL) { printf("%s: no endpoint descriptor for %d\n", USBDEVNAME(sc->sc_dev), i); sc->sc_dying = 1; USB_ATTACH_ERROR_RETURN; } if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { uca.bulkin = ed->bEndpointAddress; } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { uca.bulkout = ed->bEndpointAddress; } } if (uca.bulkin == -1) { printf("%s: Could not find data bulk in\n", USBDEVNAME(sc->sc_dev)); sc->sc_dying = 1; USB_ATTACH_ERROR_RETURN; } if (uca.bulkout == -1) { printf("%s: Could not find data bulk out\n", USBDEVNAME(sc->sc_dev)); sc->sc_dying = 1; USB_ATTACH_ERROR_RETURN; } sc->sc_dtr = sc->sc_rts = -1; uca.portno = UCOM_UNK_PORTNO; /* bulkin, bulkout set above */ uca.ibufsize = UPLCOMIBUFSIZE; uca.obufsize = UPLCOMOBUFSIZE; uca.ibufsizepad = UPLCOMIBUFSIZE; uca.opkthdrlen = 0; uca.device = dev; uca.iface = sc->sc_iface; uca.methods = &uplcom_methods; uca.arg = sc; uca.info = NULL; err = uplcom_reset(sc); if (err) { printf("%s: reset failed, %s\n", USBDEVNAME(sc->sc_dev), usbd_errstr(err)); sc->sc_dying = 1; USB_ATTACH_ERROR_RETURN; } usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, USBDEV(sc->sc_dev)); DPRINTF(("uplcom: in=0x%x out=0x%x intr=0x%x\n", uca.bulkin, uca.bulkout, sc->sc_intr_number )); sc->sc_subdev = config_found_sm(self, &uca, ucomprint, ucomsubmatch); USB_ATTACH_SUCCESS_RETURN; } USB_DETACH(uplcom) { USB_DETACH_START(uplcom, sc); int rv = 0; DPRINTF(("uplcom_detach: sc=%p flags=%d\n", sc, flags)); if (sc->sc_intr_pipe != NULL) { usbd_abort_pipe(sc->sc_intr_pipe); usbd_close_pipe(sc->sc_intr_pipe); free(sc->sc_intr_buf, M_USBDEV); sc->sc_intr_pipe = NULL; } sc->sc_dying = 1; 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, USBDEV(sc->sc_dev)); return (rv); } int uplcom_activate(device_ptr_t self, enum devact act) { struct uplcom_softc *sc = (struct uplcom_softc *)self; int rv = 0; switch (act) { case DVACT_ACTIVATE: return (EOPNOTSUPP); break; case DVACT_DEACTIVATE: if (sc->sc_subdev != NULL) rv = config_deactivate(sc->sc_subdev); sc->sc_dying = 1; break; } return (rv); } usbd_status uplcom_reset(struct uplcom_softc *sc) { usb_device_request_t req; usbd_status err; req.bmRequestType = UT_WRITE_VENDOR_DEVICE; req.bRequest = UPLCOM_SET_REQUEST; USETW(req.wValue, 0); USETW(req.wIndex, sc->sc_iface_number); USETW(req.wLength, 0); err = usbd_do_request(sc->sc_udev, &req, 0); if (err) return (EIO); return (0); } void uplcom_set_line_state(struct uplcom_softc *sc) { usb_device_request_t req; int ls; ls = (sc->sc_dtr ? UCDC_LINE_DTR : 0) | (sc->sc_rts ? UCDC_LINE_RTS : 0); req.bmRequestType = UT_WRITE_CLASS_INTERFACE; req.bRequest = UCDC_SET_CONTROL_LINE_STATE; USETW(req.wValue, ls); USETW(req.wIndex, sc->sc_iface_number); USETW(req.wLength, 0); (void)usbd_do_request(sc->sc_udev, &req, 0); } void uplcom_set(void *addr, int portno, int reg, int onoff) { struct uplcom_softc *sc = addr; switch (reg) { case UCOM_SET_DTR: uplcom_dtr(sc, onoff); break; case UCOM_SET_RTS: uplcom_rts(sc, onoff); break; case UCOM_SET_BREAK: uplcom_break(sc, onoff); break; default: break; } } void uplcom_dtr(struct uplcom_softc *sc, int onoff) { DPRINTF(("uplcom_dtr: onoff=%d\n", onoff)); if (sc->sc_dtr == onoff) return; sc->sc_dtr = onoff; uplcom_set_line_state(sc); } void uplcom_rts(struct uplcom_softc *sc, int onoff) { DPRINTF(("uplcom_rts: onoff=%d\n", onoff)); if (sc->sc_rts == onoff) return; sc->sc_rts = onoff; uplcom_set_line_state(sc); } void uplcom_break(struct uplcom_softc *sc, int onoff) { usb_device_request_t req; DPRINTF(("uplcom_break: onoff=%d\n", onoff)); req.bmRequestType = UT_WRITE_CLASS_INTERFACE; req.bRequest = UCDC_SEND_BREAK; USETW(req.wValue, onoff ? UCDC_BREAK_ON : UCDC_BREAK_OFF); USETW(req.wIndex, sc->sc_iface_number); USETW(req.wLength, 0); (void)usbd_do_request(sc->sc_udev, &req, 0); } usbd_status uplcom_set_crtscts(struct uplcom_softc *sc) { usb_device_request_t req; usbd_status err; DPRINTF(("uplcom_set_crtscts: on\n")); req.bmRequestType = UT_WRITE_VENDOR_DEVICE; req.bRequest = UPLCOM_SET_REQUEST; USETW(req.wValue, 0); USETW(req.wIndex, UPLCOM_SET_CRTSCTS); USETW(req.wLength, 0); err = usbd_do_request(sc->sc_udev, &req, 0); if (err) { DPRINTF(("uplcom_set_crtscts: failed, err=%s\n", usbd_errstr(err))); return (err); } return (USBD_NORMAL_COMPLETION); } usbd_status uplcom_set_line_coding(struct uplcom_softc *sc, usb_cdc_line_state_t *state) { usb_device_request_t req; usbd_status err; DPRINTF(("uplcom_set_line_coding: rate=%d fmt=%d parity=%d bits=%d\n", UGETDW(state->dwDTERate), state->bCharFormat, state->bParityType, state->bDataBits)); if (memcmp(state, &sc->sc_line_state, UCDC_LINE_STATE_LENGTH) == 0) { DPRINTF(("uplcom_set_line_coding: already set\n")); return (USBD_NORMAL_COMPLETION); } req.bmRequestType = UT_WRITE_CLASS_INTERFACE; req.bRequest = UCDC_SET_LINE_CODING; USETW(req.wValue, 0); USETW(req.wIndex, sc->sc_iface_number); USETW(req.wLength, UCDC_LINE_STATE_LENGTH); err = usbd_do_request(sc->sc_udev, &req, state); if (err) { DPRINTF(("uplcom_set_line_coding: failed, err=%s\n", usbd_errstr(err))); return (err); } sc->sc_line_state = *state; return (USBD_NORMAL_COMPLETION); } int uplcom_param(void *addr, int portno, struct termios *t) { struct uplcom_softc *sc = addr; usbd_status err; usb_cdc_line_state_t ls; DPRINTF(("uplcom_param: sc=%p\n", sc)); USETDW(ls.dwDTERate, t->c_ospeed); if (ISSET(t->c_cflag, CSTOPB)) ls.bCharFormat = UCDC_STOP_BIT_2; else ls.bCharFormat = UCDC_STOP_BIT_1; if (ISSET(t->c_cflag, PARENB)) { if (ISSET(t->c_cflag, PARODD)) ls.bParityType = UCDC_PARITY_ODD; else ls.bParityType = UCDC_PARITY_EVEN; } else ls.bParityType = UCDC_PARITY_NONE; switch (ISSET(t->c_cflag, CSIZE)) { case CS5: ls.bDataBits = 5; break; case CS6: ls.bDataBits = 6; break; case CS7: ls.bDataBits = 7; break; case CS8: ls.bDataBits = 8; break; } err = uplcom_set_line_coding(sc, &ls); if (err) { DPRINTF(("uplcom_param: err=%s\n", usbd_errstr(err))); return (EIO); } if (ISSET(t->c_cflag, CRTSCTS)) uplcom_set_crtscts(sc); if (err) { DPRINTF(("uplcom_param: err=%s\n", usbd_errstr(err))); return (EIO); } return (0); } int uplcom_open(void *addr, int portno) { struct uplcom_softc *sc = addr; int err; if (sc->sc_dying) return (EIO); DPRINTF(("uplcom_open: sc=%p\n", sc)); if (sc->sc_intr_number != -1 && sc->sc_intr_pipe == NULL) { sc->sc_status = 0; /* clear status bit */ sc->sc_intr_buf = malloc(sc->sc_isize, M_USBDEV, M_WAITOK); err = usbd_open_pipe_intr(sc->sc_intr_iface, sc->sc_intr_number, USBD_SHORT_XFER_OK, &sc->sc_intr_pipe, sc, sc->sc_intr_buf, sc->sc_isize, uplcom_intr, USBD_DEFAULT_INTERVAL); if (err) { DPRINTF(("%s: cannot open interrupt pipe (addr %d)\n", USBDEVNAME(sc->sc_dev), sc->sc_intr_number)); return (EIO); } } return (0); } void uplcom_close(void *addr, int portno) { struct uplcom_softc *sc = addr; int err; if (sc->sc_dying) return; DPRINTF(("uplcom_close: close\n")); if (sc->sc_intr_pipe != NULL) { err = usbd_abort_pipe(sc->sc_intr_pipe); if (err) printf("%s: abort interrupt pipe failed: %s\n", USBDEVNAME(sc->sc_dev), usbd_errstr(err)); err = usbd_close_pipe(sc->sc_intr_pipe); if (err) printf("%s: close interrupt pipe failed: %s\n", USBDEVNAME(sc->sc_dev), usbd_errstr(err)); free(sc->sc_intr_buf, M_USBDEV); sc->sc_intr_pipe = NULL; } } void uplcom_intr(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) { struct uplcom_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; DPRINTF(("%s: abnormal status: %s\n", USBDEVNAME(sc->sc_dev), usbd_errstr(status))); usbd_clear_endpoint_stall_async(sc->sc_intr_pipe); return; } DPRINTF(("%s: uplcom status = %02x\n", USBDEVNAME(sc->sc_dev), buf[8])); sc->sc_lsr = sc->sc_msr = 0; pstatus = buf[8]; if (ISSET(pstatus, RSAQ_STATUS_DSR)) sc->sc_msr |= UMSR_DSR; if (ISSET(pstatus, RSAQ_STATUS_DCD)) sc->sc_msr |= UMSR_DCD; ucom_status_change((struct ucom_softc *) sc->sc_subdev); } void uplcom_get_status(void *addr, int portno, u_char *lsr, u_char *msr) { struct uplcom_softc *sc = addr; DPRINTF(("uplcom_get_status:\n")); if (lsr != NULL) *lsr = sc->sc_lsr; if (msr != NULL) *msr = sc->sc_msr; } #if TODO int uplcom_ioctl(void *addr, int portno, u_long cmd, caddr_t data, int flag, struct proc *p) { struct uplcom_softc *sc = addr; int error = 0; if (sc->sc_dying) return (EIO); DPRINTF(("uplcom_ioctl: cmd=0x%08lx\n", cmd)); switch (cmd) { case TIOCNOTTY: case TIOCMGET: case TIOCMSET: case USB_GET_CM_OVER_DATA: case USB_SET_CM_OVER_DATA: break; default: DPRINTF(("uplcom_ioctl: unknown\n")); error = ENOTTY; break; } return (error); } #endif