diff options
Diffstat (limited to 'sys/dev/usb/umodem.c')
| -rw-r--r-- | sys/dev/usb/umodem.c | 791 |
1 files changed, 791 insertions, 0 deletions
diff --git a/sys/dev/usb/umodem.c b/sys/dev/usb/umodem.c new file mode 100644 index 0000000..317a894 --- /dev/null +++ b/sys/dev/usb/umodem.c @@ -0,0 +1,791 @@ +/* $NetBSD: umodem.c,v 1.45 2002/09/23 05:51:23 simonb Exp $ */ +/* $FreeBSD$ */ + +/*- + * Copyright (c) 2003, M. Warner Losh <imp@freebsd.org>. + * 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. + */ + +/* + * Copyright (c) 1998 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Lennart Augustsson (lennart@augustsson.net) at + * Carlstedt Research & Technology. + * + * 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. + */ + +/* + * Comm Class spec: http://www.usb.org/developers/data/devclass/usbcdc10.pdf + * http://www.usb.org/developers/data/devclass/usbcdc11.pdf + */ + +/* + * TODO: + * - Add error recovery in various places; the big problem is what + * to do in a callback if there is an error. + * - Implement a Call Device for modems without multiplexed commands. + * + */ + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/kernel.h> +#include <sys/ioccom.h> +#include <sys/conf.h> +#include <sys/tty.h> +#include <sys/file.h> +#include <sys/select.h> +#include <sys/sysctl.h> +#include <sys/proc.h> +#include <sys/vnode.h> +#include <sys/bus.h> +#include <sys/poll.h> + +#include <dev/usb/usb.h> +#include <dev/usb/usbcdc.h> + +#include <dev/usb/usbdi.h> +#include <dev/usb/usbdi_util.h> +#include <dev/usb/usbdevs.h> +#include <dev/usb/usb_quirks.h> + +#include <dev/usb/usbdevs.h> +#include <dev/usb/ucomvar.h> + +#ifdef USB_DEBUG +int umodemdebug = 0; +SYSCTL_NODE(_hw_usb, OID_AUTO, umodem, CTLFLAG_RW, 0, "USB umodem"); +SYSCTL_INT(_hw_usb_umodem, OID_AUTO, debug, CTLFLAG_RW, + &umodemdebug, 0, "umodem debug level"); +#define DPRINTFN(n, x) if (umodemdebug > (n)) logprintf x +#else +#define DPRINTFN(n, x) +#endif +#define DPRINTF(x) DPRINTFN(0, x) + +/* + * These are the maximum number of bytes transferred per frame. + * If some really high speed devices should use this driver they + * may need to be increased, but this is good enough for normal modems. + */ +#define UMODEMIBUFSIZE 64 +#define UMODEMOBUFSIZE 256 + +#define UMODEM_MODVER 1 /* module version */ + +struct umodem_softc { + struct ucom_softc sc_ucom; + + USBBASEDEVICE sc_dev; /* base device */ + + usbd_device_handle sc_udev; /* USB device */ + + int sc_ctl_iface_no; + usbd_interface_handle sc_ctl_iface; /* control interface */ + int sc_data_iface_no; + usbd_interface_handle sc_data_iface; /* data interface */ + + int sc_cm_cap; /* CM capabilities */ + int sc_acm_cap; /* ACM capabilities */ + + int sc_cm_over_data; + + 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_opening; /* lock during open */ + + int sc_ctl_notify; /* Notification endpoint */ + usbd_pipe_handle sc_notify_pipe; /* Notification pipe */ + usb_cdc_notification_t sc_notify_buf; /* Notification structure */ + u_char sc_lsr; /* Local status register */ + u_char sc_msr; /* Modem status register */ +}; + +Static void *umodem_get_desc(usbd_device_handle dev, int type, int subtype); +Static usbd_status umodem_set_comm_feature(struct umodem_softc *sc, + int feature, int state); +Static usbd_status umodem_set_line_coding(struct umodem_softc *sc, + usb_cdc_line_state_t *state); + +Static void umodem_get_caps(usbd_device_handle, int *, int *); + +Static void umodem_get_status(void *, int portno, u_char *lsr, u_char *msr); +Static void umodem_set(void *, int, int, int); +Static void umodem_dtr(struct umodem_softc *, int); +Static void umodem_rts(struct umodem_softc *, int); +Static void umodem_break(struct umodem_softc *, int); +Static void umodem_set_line_state(struct umodem_softc *); +Static int umodem_param(void *, int, struct termios *); +Static int umodem_ioctl(void *, int, u_long, caddr_t, int, usb_proc_ptr ); +Static int umodem_open(void *, int portno); +Static void umodem_close(void *, int portno); +Static void umodem_intr(usbd_xfer_handle, usbd_private_handle, usbd_status); + +Static struct ucom_callback umodem_callback = { + umodem_get_status, + umodem_set, + umodem_param, + umodem_ioctl, + umodem_open, + umodem_close, + NULL, + NULL, +}; + +Static device_probe_t umodem_match; +Static device_attach_t umodem_attach; +Static device_detach_t umodem_detach; + +Static device_method_t umodem_methods[] = { + /* Device interface */ + DEVMETHOD(device_probe, umodem_match), + DEVMETHOD(device_attach, umodem_attach), + DEVMETHOD(device_detach, umodem_detach), + { 0, 0 } +}; + +Static driver_t umodem_driver = { + "ucom", + umodem_methods, + sizeof (struct umodem_softc) +}; + +DRIVER_MODULE(umodem, uhub, umodem_driver, ucom_devclass, usbd_driver_load, 0); +MODULE_DEPEND(umodem, usb, 1, 1, 1); +MODULE_DEPEND(umodem, ucom, UCOM_MINVER, UCOM_PREFVER, UCOM_MAXVER); +MODULE_VERSION(umodem, UMODEM_MODVER); + +USB_MATCH(umodem) +{ + USB_MATCH_START(umodem, uaa); + usb_interface_descriptor_t *id; + int cm, acm; + + if (uaa->iface == NULL) + return (UMATCH_NONE); + + id = usbd_get_interface_descriptor(uaa->iface); + if (id == NULL || + id->bInterfaceClass != UICLASS_CDC || + id->bInterfaceSubClass != UISUBCLASS_ABSTRACT_CONTROL_MODEL || + id->bInterfaceProtocol != UIPROTO_CDC_AT) + return (UMATCH_NONE); + + umodem_get_caps(uaa->device, &cm, &acm); + if (!(cm & USB_CDC_CM_DOES_CM) || + !(cm & USB_CDC_CM_OVER_DATA) || + !(acm & USB_CDC_ACM_HAS_LINE)) + return (UMATCH_NONE); + + return (UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO); +} + +USB_ATTACH(umodem) +{ + USB_ATTACH_START(umodem, sc, uaa); + usbd_device_handle dev = uaa->device; + usb_interface_descriptor_t *id; + usb_endpoint_descriptor_t *ed; + usb_cdc_cm_descriptor_t *cmd; + char *devinfo = NULL; + const char *devname; + usbd_status err; + int data_ifcno; + int i; + struct ucom_softc *ucom; + + devinfo = malloc(1024, M_USBDEV, M_WAITOK); + usbd_devinfo(dev, 0, devinfo); + ucom = &sc->sc_ucom; + ucom->sc_dev = self; + sc->sc_dev = self; + device_set_desc_copy(self, devinfo); + ucom->sc_udev = dev; + ucom->sc_iface = uaa->iface; + /*USB_ATTACH_SETUP; */ + + sc->sc_udev = dev; + sc->sc_ctl_iface = uaa->iface; + + devname = USBDEVNAME(sc->sc_dev); + /* XXX ? use something else ? XXX */ + id = usbd_get_interface_descriptor(sc->sc_ctl_iface); + printf("%s: %s, iclass %d/%d\n", devname, devinfo, + id->bInterfaceClass, id->bInterfaceSubClass); + sc->sc_ctl_iface_no = id->bInterfaceNumber; + + umodem_get_caps(dev, &sc->sc_cm_cap, &sc->sc_acm_cap); + + /* Get the data interface no. */ + cmd = umodem_get_desc(dev, UDESC_CS_INTERFACE, UDESCSUB_CDC_CM); + if (cmd == NULL) { + printf("%s: no CM descriptor\n", devname); + goto bad; + } + sc->sc_data_iface_no = data_ifcno = cmd->bDataInterface; + + printf("%s: data interface %d, has %sCM over data, has %sbreak\n", + devname, data_ifcno, + sc->sc_cm_cap & USB_CDC_CM_OVER_DATA ? "" : "no ", + sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK ? "" : "no "); + + /* Get the data interface too. */ + for (i = 0; i < uaa->nifaces; i++) { + if (uaa->ifaces[i] != NULL) { + id = usbd_get_interface_descriptor(uaa->ifaces[i]); + if (id != NULL && id->bInterfaceNumber == data_ifcno) { + sc->sc_data_iface = uaa->ifaces[i]; + uaa->ifaces[i] = NULL; + } + } + } + if (sc->sc_data_iface == NULL) { + printf("%s: no data interface\n", devname); + goto bad; + } + ucom->sc_iface = sc->sc_data_iface; + + /* + * Find the bulk endpoints. + * Iterate over all endpoints in the data interface and take note. + */ + ucom->sc_bulkin_no = ucom->sc_bulkout_no = -1; + + id = usbd_get_interface_descriptor(sc->sc_data_iface); + for (i = 0; i < id->bNumEndpoints; i++) { + ed = usbd_interface2endpoint_descriptor(sc->sc_data_iface, i); + if (ed == NULL) { + printf("%s: no endpoint descriptor for %d\n", devname, + i); + goto bad; + } + if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && + UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { + ucom->sc_bulkin_no = ed->bEndpointAddress; + } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && + UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { + ucom->sc_bulkout_no = ed->bEndpointAddress; + } + } + + if (ucom->sc_bulkin_no == -1) { + printf("%s: Could not find data bulk in\n", devname); + goto bad; + } + if (ucom->sc_bulkout_no == -1) { + printf("%s: Could not find data bulk out\n", devname); + goto bad; + } + + if (usbd_get_quirks(sc->sc_udev)->uq_flags & UQ_ASSUME_CM_OVER_DATA) { + DPRINTF(("Quirk says to assume CM over data\n")); + sc->sc_cm_over_data = 1; + } else { + if (sc->sc_cm_cap & USB_CDC_CM_OVER_DATA) { + if (sc->sc_acm_cap & USB_CDC_ACM_HAS_FEATURE) + err = umodem_set_comm_feature(sc, + UCDC_ABSTRACT_STATE, UCDC_DATA_MULTIPLEXED); + else + err = 0; + if (err) { + printf("%s: could not set data multiplex mode\n", + devname); + goto bad; + } + sc->sc_cm_over_data = 1; + } + } + + /* + * The standard allows for notification messages (to indicate things + * like a modem hangup) to come in via an interrupt endpoint + * off of the control interface. Iterate over the endpoints on + * the control interface and see if there are any interrupt + * endpoints; if there are, then register it. + */ + + sc->sc_ctl_notify = -1; + sc->sc_notify_pipe = NULL; + + for (i = 0; i < id->bNumEndpoints; i++) { + ed = usbd_interface2endpoint_descriptor(sc->sc_ctl_iface, i); + if (ed == NULL) + continue; + + if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && + (ed->bmAttributes & UE_XFERTYPE) == UE_INTERRUPT) { + printf("%s: status change notification available\n", + devname); + sc->sc_ctl_notify = ed->bEndpointAddress; + } + } + + sc->sc_dtr = -1; + + ucom->sc_parent = sc; + ucom->sc_portno = UCOM_UNK_PORTNO; + /* bulkin, bulkout set above */ + ucom->sc_ibufsize = UMODEMIBUFSIZE; + ucom->sc_obufsize = UMODEMOBUFSIZE; + ucom->sc_ibufsizepad = UMODEMIBUFSIZE; + ucom->sc_opkthdrlen = 0; + ucom->sc_callback = &umodem_callback; + + ucom_attach(&sc->sc_ucom); + + free(devinfo, M_USBDEV); + USB_ATTACH_SUCCESS_RETURN; + + bad: + ucom->sc_dying = 1; + free(devinfo, M_USBDEV); + USB_ATTACH_ERROR_RETURN; +} + +Static int +umodem_open(void *addr, int portno) +{ + struct umodem_softc *sc = addr; + int err; + + DPRINTF(("umodem_open: sc=%p\n", sc)); + + if (sc->sc_ctl_notify != -1 && sc->sc_notify_pipe == NULL) { + err = usbd_open_pipe_intr(sc->sc_ctl_iface, sc->sc_ctl_notify, + USBD_SHORT_XFER_OK, &sc->sc_notify_pipe, sc, + &sc->sc_notify_buf, sizeof(sc->sc_notify_buf), + umodem_intr, USBD_DEFAULT_INTERVAL); + + if (err) { + DPRINTF(("Failed to establish notify pipe: %s\n", + usbd_errstr(err))); + return EIO; + } + } + + return 0; +} + +Static void +umodem_close(void *addr, int portno) +{ + struct umodem_softc *sc = addr; + int err; + + DPRINTF(("umodem_close: sc=%p\n", sc)); + + if (sc->sc_notify_pipe != NULL) { + err = usbd_abort_pipe(sc->sc_notify_pipe); + if (err) + printf("%s: abort notify pipe failed: %s\n", + USBDEVNAME(sc->sc_dev), usbd_errstr(err)); + err = usbd_close_pipe(sc->sc_notify_pipe); + if (err) + printf("%s: close notify pipe failed: %s\n", + USBDEVNAME(sc->sc_dev), usbd_errstr(err)); + sc->sc_notify_pipe = NULL; + } +} + +Static void +umodem_intr(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) +{ + struct umodem_softc *sc = priv; + u_char mstatus; + + if (sc->sc_ucom.sc_dying) + return; + + if (status != USBD_NORMAL_COMPLETION) { + if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) + return; + printf("%s: abnormal status: %s\n", USBDEVNAME(sc->sc_dev), + usbd_errstr(status)); + return; + } + + if (sc->sc_notify_buf.bmRequestType != UCDC_NOTIFICATION) { + DPRINTF(("%s: unknown message type (%02x) on notify pipe\n", + USBDEVNAME(sc->sc_dev), + sc->sc_notify_buf.bmRequestType)); + return; + } + + switch (sc->sc_notify_buf.bNotification) { + case UCDC_N_SERIAL_STATE: + /* + * Set the serial state in ucom driver based on + * the bits from the notify message + */ + if (UGETW(sc->sc_notify_buf.wLength) != 2) { + printf("%s: Invalid notification length! (%d)\n", + USBDEVNAME(sc->sc_dev), + UGETW(sc->sc_notify_buf.wLength)); + break; + } + DPRINTF(("%s: notify bytes = %02x%02x\n", + USBDEVNAME(sc->sc_dev), + sc->sc_notify_buf.data[0], + sc->sc_notify_buf.data[1])); + /* Currently, lsr is always zero. */ + sc->sc_lsr = sc->sc_msr = 0; + mstatus = sc->sc_notify_buf.data[0]; + + if (ISSET(mstatus, UCDC_N_SERIAL_RI)) + sc->sc_msr |= UMSR_RI; + if (ISSET(mstatus, UCDC_N_SERIAL_DSR)) + sc->sc_msr |= UMSR_DSR; + if (ISSET(mstatus, UCDC_N_SERIAL_DCD)) + sc->sc_msr |= UMSR_DCD; + ucom_status_change(&sc->sc_ucom); + break; + default: + DPRINTF(("%s: unknown notify message: %02x\n", + USBDEVNAME(sc->sc_dev), + sc->sc_notify_buf.bNotification)); + break; + } +} + +void +umodem_get_caps(usbd_device_handle dev, int *cm, int *acm) +{ + usb_cdc_cm_descriptor_t *cmd; + usb_cdc_acm_descriptor_t *cad; + + *cm = *acm = 0; + + cmd = umodem_get_desc(dev, UDESC_CS_INTERFACE, UDESCSUB_CDC_CM); + if (cmd == NULL) { + DPRINTF(("umodem_get_desc: no CM desc\n")); + return; + } + *cm = cmd->bmCapabilities; + + cad = umodem_get_desc(dev, UDESC_CS_INTERFACE, UDESCSUB_CDC_ACM); + if (cad == NULL) { + DPRINTF(("umodem_get_desc: no ACM desc\n")); + return; + } + *acm = cad->bmCapabilities; +} + +void +umodem_get_status(void *addr, int portno, u_char *lsr, u_char *msr) +{ + struct umodem_softc *sc = addr; + + DPRINTF(("umodem_get_status:\n")); + + if (lsr != NULL) + *lsr = sc->sc_lsr; + if (msr != NULL) + *msr = sc->sc_msr; +} + +int +umodem_param(void *addr, int portno, struct termios *t) +{ + struct umodem_softc *sc = addr; + usbd_status err; + usb_cdc_line_state_t ls; + + DPRINTF(("umodem_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 = umodem_set_line_coding(sc, &ls); + if (err) { + DPRINTF(("umodem_param: err=%s\n", usbd_errstr(err))); + return (ENOTTY); + } + return (0); +} + +int +umodem_ioctl(void *addr, int portno, u_long cmd, caddr_t data, int flag, + usb_proc_ptr p) +{ + struct umodem_softc *sc = addr; + int error = 0; + + if (sc->sc_ucom.sc_dying) + return (EIO); + + DPRINTF(("umodemioctl: cmd=0x%08lx\n", cmd)); + + switch (cmd) { + case USB_GET_CM_OVER_DATA: + *(int *)data = sc->sc_cm_over_data; + break; + + case USB_SET_CM_OVER_DATA: + if (*(int *)data != sc->sc_cm_over_data) { + /* XXX change it */ + } + break; + + default: + DPRINTF(("umodemioctl: unknown\n")); + error = ENOTTY; + break; + } + + return (error); +} + +void +umodem_dtr(struct umodem_softc *sc, int onoff) +{ + DPRINTF(("umodem_modem: onoff=%d\n", onoff)); + + if (sc->sc_dtr == onoff) + return; + sc->sc_dtr = onoff; + + umodem_set_line_state(sc); +} + +void +umodem_rts(struct umodem_softc *sc, int onoff) +{ + DPRINTF(("umodem_modem: onoff=%d\n", onoff)); + + if (sc->sc_rts == onoff) + return; + sc->sc_rts = onoff; + + umodem_set_line_state(sc); +} + +void +umodem_set_line_state(struct umodem_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_ctl_iface_no); + USETW(req.wLength, 0); + + (void)usbd_do_request(sc->sc_udev, &req, 0); + +} + +void +umodem_break(struct umodem_softc *sc, int onoff) +{ + usb_device_request_t req; + + DPRINTF(("umodem_break: onoff=%d\n", onoff)); + + if (!(sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK)) + return; + + 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_ctl_iface_no); + USETW(req.wLength, 0); + + (void)usbd_do_request(sc->sc_udev, &req, 0); +} + +void +umodem_set(void *addr, int portno, int reg, int onoff) +{ + struct umodem_softc *sc = addr; + + switch (reg) { + case UCOM_SET_DTR: + umodem_dtr(sc, onoff); + break; + case UCOM_SET_RTS: + umodem_rts(sc, onoff); + break; + case UCOM_SET_BREAK: + umodem_break(sc, onoff); + break; + default: + break; + } +} + +usbd_status +umodem_set_line_coding(struct umodem_softc *sc, usb_cdc_line_state_t *state) +{ + usb_device_request_t req; + usbd_status err; + + DPRINTF(("umodem_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(("umodem_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_ctl_iface_no); + USETW(req.wLength, UCDC_LINE_STATE_LENGTH); + + err = usbd_do_request(sc->sc_udev, &req, state); + if (err) { + DPRINTF(("umodem_set_line_coding: failed, err=%s\n", + usbd_errstr(err))); + return (err); + } + + sc->sc_line_state = *state; + + return (USBD_NORMAL_COMPLETION); +} + +void * +umodem_get_desc(usbd_device_handle dev, int type, int subtype) +{ + usb_descriptor_t *desc; + usb_config_descriptor_t *cd = usbd_get_config_descriptor(dev); + uByte *p = (uByte *)cd; + uByte *end = p + UGETW(cd->wTotalLength); + + while (p < end) { + desc = (usb_descriptor_t *)p; + if (desc->bDescriptorType == type && + desc->bDescriptorSubtype == subtype) + return (desc); + p += desc->bLength; + } + + return (0); +} + +usbd_status +umodem_set_comm_feature(struct umodem_softc *sc, int feature, int state) +{ + usb_device_request_t req; + usbd_status err; + usb_cdc_abstract_state_t ast; + + DPRINTF(("umodem_set_comm_feature: feature=%d state=%d\n", feature, + state)); + + req.bmRequestType = UT_WRITE_CLASS_INTERFACE; + req.bRequest = UCDC_SET_COMM_FEATURE; + USETW(req.wValue, feature); + USETW(req.wIndex, sc->sc_ctl_iface_no); + USETW(req.wLength, UCDC_ABSTRACT_STATE_LENGTH); + USETW(ast.wState, state); + + err = usbd_do_request(sc->sc_udev, &req, &ast); + if (err) { + DPRINTF(("umodem_set_comm_feature: feature=%d, err=%s\n", + feature, usbd_errstr(err))); + return (err); + } + + return (USBD_NORMAL_COMPLETION); +} + +USB_DETACH(umodem) +{ + USB_DETACH_START(umodem, sc); + int rv = 0; + + DPRINTF(("umodem_detach: sc=%p\n", sc)); + + if (sc->sc_notify_pipe != NULL) { + usbd_abort_pipe(sc->sc_notify_pipe); + usbd_close_pipe(sc->sc_notify_pipe); + sc->sc_notify_pipe = NULL; + } + + sc->sc_ucom.sc_dying = 1; + rv = ucom_detach(&sc->sc_ucom); + + return (rv); +} |
