diff options
Diffstat (limited to 'sys/legacy/dev/usb/ubsa.c')
| -rw-r--r-- | sys/legacy/dev/usb/ubsa.c | 742 |
1 files changed, 742 insertions, 0 deletions
diff --git a/sys/legacy/dev/usb/ubsa.c b/sys/legacy/dev/usb/ubsa.c new file mode 100644 index 0000000..b66cce8 --- /dev/null +++ b/sys/legacy/dev/usb/ubsa.c @@ -0,0 +1,742 @@ +/*- + * Copyright (c) 2002, Alexander Kabaev <kan.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. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); +/*- + * 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. + */ + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/kernel.h> +#include <sys/malloc.h> +#include <sys/module.h> +#include <sys/bus.h> +#include <sys/ioccom.h> +#include <sys/fcntl.h> +#include <sys/taskqueue.h> +#include <sys/conf.h> +#include <sys/tty.h> +#include <sys/file.h> +#include <sys/selinfo.h> +#include <sys/proc.h> +#include <sys/poll.h> +#include <sys/sysctl.h> + +#include <dev/usb/usb.h> +#include <dev/usb/usbcdc.h> + +#include <dev/usb/usbdi.h> +#include <dev/usb/usbdi_util.h> +#include "usbdevs.h" +#include <dev/usb/usb_quirks.h> + +#include <dev/usb/ucomvar.h> + +#ifdef USB_DEBUG +static int ubsadebug = 0; +SYSCTL_NODE(_hw_usb, OID_AUTO, ubsa, CTLFLAG_RW, 0, "USB ubsa"); +SYSCTL_INT(_hw_usb_ubsa, OID_AUTO, debug, CTLFLAG_RW, + &ubsadebug, 0, "ubsa debug level"); + +#define DPRINTFN(n, x) do { \ + if (ubsadebug > (n)) \ + printf x; \ + } while (0) +#else +#define DPRINTFN(n, x) +#endif +#define DPRINTF(x) DPRINTFN(0, x) + +#define UBSA_MODVER 1 /* module version */ + +#define UBSA_CONFIG_INDEX 1 +#define UBSA_IFACE_INDEX 0 + +#define UBSA_INTR_INTERVAL 100 /* ms */ + +#define UBSA_SET_BAUDRATE 0x00 +#define UBSA_SET_STOP_BITS 0x01 +#define UBSA_SET_DATA_BITS 0x02 +#define UBSA_SET_PARITY 0x03 +#define UBSA_SET_DTR 0x0A +#define UBSA_SET_RTS 0x0B +#define UBSA_SET_BREAK 0x0C +#define UBSA_SET_FLOW_CTRL 0x10 + +#define UBSA_PARITY_NONE 0x00 +#define UBSA_PARITY_EVEN 0x01 +#define UBSA_PARITY_ODD 0x02 +#define UBSA_PARITY_MARK 0x03 +#define UBSA_PARITY_SPACE 0x04 + +#define UBSA_FLOW_NONE 0x0000 +#define UBSA_FLOW_OCTS 0x0001 +#define UBSA_FLOW_ODSR 0x0002 +#define UBSA_FLOW_IDSR 0x0004 +#define UBSA_FLOW_IDTR 0x0008 +#define UBSA_FLOW_IRTS 0x0010 +#define UBSA_FLOW_ORTS 0x0020 +#define UBSA_FLOW_UNKNOWN 0x0040 +#define UBSA_FLOW_OXON 0x0080 +#define UBSA_FLOW_IXON 0x0100 + +/* line status register */ +#define UBSA_LSR_TSRE 0x40 /* Transmitter empty: byte sent */ +#define UBSA_LSR_TXRDY 0x20 /* Transmitter buffer empty */ +#define UBSA_LSR_BI 0x10 /* Break detected */ +#define UBSA_LSR_FE 0x08 /* Framing error: bad stop bit */ +#define UBSA_LSR_PE 0x04 /* Parity error */ +#define UBSA_LSR_OE 0x02 /* Overrun, lost incoming byte */ +#define UBSA_LSR_RXRDY 0x01 /* Byte ready in Receive Buffer */ +#define UBSA_LSR_RCV_MASK 0x1f /* Mask for incoming data or error */ + +/* modem status register */ +/* All deltas are from the last read of the MSR. */ +#define UBSA_MSR_DCD 0x80 /* Current Data Carrier Detect */ +#define UBSA_MSR_RI 0x40 /* Current Ring Indicator */ +#define UBSA_MSR_DSR 0x20 /* Current Data Set Ready */ +#define UBSA_MSR_CTS 0x10 /* Current Clear to Send */ +#define UBSA_MSR_DDCD 0x08 /* DCD has changed state */ +#define UBSA_MSR_TERI 0x04 /* RI has toggled low to high */ +#define UBSA_MSR_DDSR 0x02 /* DSR has changed state */ +#define UBSA_MSR_DCTS 0x01 /* CTS has changed state */ + +struct ubsa_softc { + struct ucom_softc sc_ucom; + + 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; + + 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; /* ubsa status register */ + struct task sc_task; +}; + +static void ubsa_intr(usbd_xfer_handle, usbd_private_handle, usbd_status); +static void ubsa_notify(void *, int count); + +static void ubsa_get_status(void *, int, u_char *, u_char *); +static void ubsa_set(void *, int, int, int); +static int ubsa_param(void *, int, struct termios *); +static int ubsa_open(void *, int); +static void ubsa_close(void *, int); + +static int ubsa_request(struct ubsa_softc *, u_int8_t, u_int16_t); +static void ubsa_dtr(struct ubsa_softc *, int); +static void ubsa_rts(struct ubsa_softc *, int); +static void ubsa_baudrate(struct ubsa_softc *, speed_t); +static void ubsa_parity(struct ubsa_softc *, tcflag_t); +static void ubsa_databits(struct ubsa_softc *, tcflag_t); +static void ubsa_stopbits(struct ubsa_softc *, tcflag_t); +static void ubsa_flow(struct ubsa_softc *, tcflag_t, tcflag_t); + +struct ucom_callback ubsa_callback = { + ubsa_get_status, + ubsa_set, + ubsa_param, + NULL, + ubsa_open, + ubsa_close, + NULL, + NULL +}; + +static const struct ubsa_product { + uint16_t vendor; + uint16_t product; +} ubsa_products [] = { + /* AnyData ADU-500A */ + { USB_VENDOR_ANYDATA, USB_PRODUCT_ANYDATA_ADU_500A }, + /* AnyData ADU-E100A/H */ + { USB_VENDOR_ANYDATA, USB_PRODUCT_ANYDATA_ADU_E100X }, + /* Axesstel MV100H */ + { USB_VENDOR_AXESSTEL, USB_PRODUCT_AXESSTEL_DATAMODEM }, + /* BELKIN F5U103 */ + { USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5U103 }, + /* BELKIN F5U120 */ + { USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5U120 }, + /* GoHubs GO-COM232 */ + { USB_VENDOR_ETEK, USB_PRODUCT_ETEK_1COM }, + /* GoHubs GO-COM232 */ + { USB_VENDOR_GOHUBS, USB_PRODUCT_GOHUBS_GOCOM232 }, + /* Peracom */ + { USB_VENDOR_PERACOM, USB_PRODUCT_PERACOM_SERIAL1 }, + { 0, 0 } +}; + +static device_probe_t ubsa_match; +static device_attach_t ubsa_attach; +static device_detach_t ubsa_detach; + +static device_method_t ubsa_methods[] = { + /* Device interface */ + DEVMETHOD(device_probe, ubsa_match), + DEVMETHOD(device_attach, ubsa_attach), + DEVMETHOD(device_detach, ubsa_detach), + { 0, 0 } +}; + +static driver_t ubsa_driver = { + "ucom", + ubsa_methods, + sizeof (struct ubsa_softc) +}; + +DRIVER_MODULE(ubsa, uhub, ubsa_driver, ucom_devclass, usbd_driver_load, 0); +MODULE_DEPEND(ubsa, usb, 1, 1, 1); +MODULE_DEPEND(ubsa, ucom, UCOM_MINVER, UCOM_PREFVER, UCOM_MAXVER); +MODULE_VERSION(ubsa, UBSA_MODVER); + +static int +ubsa_match(device_t self) +{ + struct usb_attach_arg *uaa = device_get_ivars(self); + int i; + + if (uaa->iface != NULL) + return (UMATCH_NONE); + + for (i = 0; ubsa_products[i].vendor != 0; i++) { + if (ubsa_products[i].vendor == uaa->vendor && + ubsa_products[i].product == uaa->product) { + return (UMATCH_VENDOR_PRODUCT); + } + } + return (UMATCH_NONE); +} + +static int +ubsa_attach(device_t self) +{ + struct ubsa_softc *sc = device_get_softc(self); + struct usb_attach_arg *uaa = device_get_ivars(self); + usbd_device_handle dev; + struct ucom_softc *ucom; + usb_config_descriptor_t *cdesc; + usb_interface_descriptor_t *id; + usb_endpoint_descriptor_t *ed; + usbd_status err; + int i; + + dev = uaa->device; + ucom = &sc->sc_ucom; + + /* + * initialize rts, dtr variables to something + * different from boolean 0, 1 + */ + sc->sc_dtr = -1; + sc->sc_rts = -1; + + ucom->sc_dev = self; + ucom->sc_udev = dev; + ucom->sc_iface = uaa->iface; + + DPRINTF(("ubsa attach: sc = %p\n", sc)); + + /* initialize endpoints */ + ucom->sc_bulkin_no = ucom->sc_bulkout_no = -1; + sc->sc_intr_number = -1; + sc->sc_intr_pipe = NULL; + + /* Move the device into the configured state. */ + err = usbd_set_config_index(dev, UBSA_CONFIG_INDEX, 1); + if (err) { + device_printf(ucom->sc_dev, "failed to set configuration: %s\n", + usbd_errstr(err)); + ucom->sc_dying = 1; + goto error; + } + + /* get the config descriptor */ + cdesc = usbd_get_config_descriptor(ucom->sc_udev); + + if (cdesc == NULL) { + device_printf(ucom->sc_dev, + "failed to get configuration descriptor\n"); + ucom->sc_dying = 1; + goto error; + } + + /* get the first interface */ + err = usbd_device2interface_handle(dev, UBSA_IFACE_INDEX, + &ucom->sc_iface); + if (err) { + device_printf(ucom->sc_dev, "failed to get interface: %s\n", + usbd_errstr(err)); + ucom->sc_dying = 1; + goto error; + } + + /* Find the endpoints */ + + id = usbd_get_interface_descriptor(ucom->sc_iface); + sc->sc_iface_number = id->bInterfaceNumber; + + for (i = 0; i < id->bNumEndpoints; i++) { + ed = usbd_interface2endpoint_descriptor(ucom->sc_iface, i); + if (ed == NULL) { + device_printf(ucom->sc_dev, + "no endpoint descriptor for %d\n", i); + ucom->sc_dying = 1; + goto error; + } + + 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); + } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && + UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { + ucom->sc_bulkin_no = ed->bEndpointAddress; + ucom->sc_ibufsize = UGETW(ed->wMaxPacketSize); + } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && + UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { + ucom->sc_bulkout_no = ed->bEndpointAddress; + ucom->sc_obufsize = UGETW(ed->wMaxPacketSize); + } + } + + if (sc->sc_intr_number == -1) { + device_printf(ucom->sc_dev, "Could not find interrupt in\n"); + ucom->sc_dying = 1; + goto error; + } + + /* keep interface for interrupt */ + sc->sc_intr_iface = ucom->sc_iface; + + if (ucom->sc_bulkin_no == -1) { + device_printf(ucom->sc_dev, "Could not find data bulk in\n"); + ucom->sc_dying = 1; + goto error; + } + + if (ucom->sc_bulkout_no == -1) { + device_printf(ucom->sc_dev, "Could not find data bulk out\n"); + ucom->sc_dying = 1; + goto error; + } + + ucom->sc_parent = sc; + ucom->sc_portno = UCOM_UNK_PORTNO; + /* bulkin, bulkout set above */ + ucom->sc_ibufsize = 1024; + ucom->sc_obufsize = 1024; + ucom->sc_ibufsizepad = ucom->sc_ibufsize; + ucom->sc_opkthdrlen = 0; + ucom->sc_callback = &ubsa_callback; + + DPRINTF(("ubsa: in = 0x%x, out = 0x%x, intr = 0x%x\n", + ucom->sc_bulkin_no, ucom->sc_bulkout_no, sc->sc_intr_number)); + + TASK_INIT(&sc->sc_task, 0, ubsa_notify, sc); + ucom_attach(ucom); + return 0; + +error: + return ENXIO; +} + +static int +ubsa_detach(device_t self) +{ + struct ubsa_softc *sc = device_get_softc(self); + int rv; + + DPRINTF(("ubsa_detach: sc = %p\n", sc)); + + 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_ucom.sc_dying = 1; +#if 0 + taskqueue_drain(taskqueue_swi_giant); +#endif + rv = ucom_detach(&sc->sc_ucom); + + return (rv); +} + +static int +ubsa_request(struct ubsa_softc *sc, u_int8_t request, u_int16_t value) +{ + usb_device_request_t req; + usbd_status err; + + req.bmRequestType = UT_WRITE_VENDOR_DEVICE; + req.bRequest = request; + USETW(req.wValue, value); + USETW(req.wIndex, sc->sc_iface_number); + USETW(req.wLength, 0); + + err = usbd_do_request(sc->sc_ucom.sc_udev, &req, 0); + if (err) + device_printf(sc->sc_ucom.sc_dev, "ubsa_request(%x, %x): %s\n", + request, value, usbd_errstr(err)); + return (err); +} + +static void +ubsa_dtr(struct ubsa_softc *sc, int onoff) +{ + + DPRINTF(("ubsa_dtr: onoff = %d\n", onoff)); + + if (sc->sc_dtr == onoff) + return; + sc->sc_dtr = onoff; + + ubsa_request(sc, UBSA_SET_DTR, onoff ? 1 : 0); +} + +static void +ubsa_rts(struct ubsa_softc *sc, int onoff) +{ + + DPRINTF(("ubsa_rts: onoff = %d\n", onoff)); + + if (sc->sc_rts == onoff) + return; + sc->sc_rts = onoff; + + ubsa_request(sc, UBSA_SET_RTS, onoff ? 1 : 0); +} + +static void +ubsa_break(struct ubsa_softc *sc, int onoff) +{ + + DPRINTF(("ubsa_rts: onoff = %d\n", onoff)); + + ubsa_request(sc, UBSA_SET_BREAK, onoff ? 1 : 0); +} + +static void +ubsa_set(void *addr, int portno, int reg, int onoff) +{ + struct ubsa_softc *sc; + + sc = addr; + switch (reg) { + case UCOM_SET_DTR: + ubsa_dtr(sc, onoff); + break; + case UCOM_SET_RTS: + ubsa_rts(sc, onoff); + break; + case UCOM_SET_BREAK: + ubsa_break(sc, onoff); + break; + default: + break; + } +} + +static void +ubsa_baudrate(struct ubsa_softc *sc, speed_t speed) +{ + u_int16_t value = 0; + + DPRINTF(("ubsa_baudrate: speed = %d\n", speed)); + + switch(speed) { + case B0: + break; + case B300: + case B600: + case B1200: + case B2400: + case B4800: + case B9600: + case B19200: + case B38400: + case B57600: + case B115200: + case B230400: + value = B230400 / speed; + break; + default: + device_printf(sc->sc_ucom.sc_dev, + "ubsa_param: unsupported baud, forcing default of 9600\n"); + value = B230400 / B9600; + break; + }; + + if (speed == B0) { + ubsa_flow(sc, 0, 0); + ubsa_dtr(sc, 0); + ubsa_rts(sc, 0); + } else + ubsa_request(sc, UBSA_SET_BAUDRATE, value); +} + +static void +ubsa_parity(struct ubsa_softc *sc, tcflag_t cflag) +{ + int value; + + DPRINTF(("ubsa_parity: cflag = 0x%x\n", cflag)); + + if (cflag & PARENB) + value = (cflag & PARODD) ? UBSA_PARITY_ODD : UBSA_PARITY_EVEN; + else + value = UBSA_PARITY_NONE; + + ubsa_request(sc, UBSA_SET_PARITY, value); +} + +static void +ubsa_databits(struct ubsa_softc *sc, tcflag_t cflag) +{ + int value; + + DPRINTF(("ubsa_databits: cflag = 0x%x\n", cflag)); + + switch (cflag & CSIZE) { + case CS5: value = 0; break; + case CS6: value = 1; break; + case CS7: value = 2; break; + case CS8: value = 3; break; + default: + device_printf(sc->sc_ucom.sc_dev, + "ubsa_param: unsupported databits requested, " + "forcing default of 8\n"); + value = 3; + } + + ubsa_request(sc, UBSA_SET_DATA_BITS, value); +} + +static void +ubsa_stopbits(struct ubsa_softc *sc, tcflag_t cflag) +{ + int value; + + DPRINTF(("ubsa_stopbits: cflag = 0x%x\n", cflag)); + + value = (cflag & CSTOPB) ? 1 : 0; + + ubsa_request(sc, UBSA_SET_STOP_BITS, value); +} + +static void +ubsa_flow(struct ubsa_softc *sc, tcflag_t cflag, tcflag_t iflag) +{ + int value; + + DPRINTF(("ubsa_flow: cflag = 0x%x, iflag = 0x%x\n", cflag, iflag)); + + value = 0; + if (cflag & CRTSCTS) + value |= UBSA_FLOW_OCTS | UBSA_FLOW_IRTS; + if (iflag & (IXON|IXOFF)) + value |= UBSA_FLOW_OXON | UBSA_FLOW_IXON; + + ubsa_request(sc, UBSA_SET_FLOW_CTRL, value); +} + +static int +ubsa_param(void *addr, int portno, struct termios *ti) +{ + struct ubsa_softc *sc; + + sc = addr; + + DPRINTF(("ubsa_param: sc = %p\n", sc)); + + ubsa_baudrate(sc, ti->c_ospeed); + ubsa_parity(sc, ti->c_cflag); + ubsa_databits(sc, ti->c_cflag); + ubsa_stopbits(sc, ti->c_cflag); + ubsa_flow(sc, ti->c_cflag, ti->c_iflag); + + return (0); +} + +static int +ubsa_open(void *addr, int portno) +{ + struct ubsa_softc *sc; + int err; + + sc = addr; + if (sc->sc_ucom.sc_dying) + return (ENXIO); + + DPRINTF(("ubsa_open: sc = %p\n", sc)); + + if (sc->sc_intr_number != -1 && sc->sc_intr_pipe == NULL) { + 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, + ubsa_intr, + UBSA_INTR_INTERVAL); + if (err) { + device_printf(sc->sc_ucom.sc_dev, + "cannot open interrupt pipe (addr %d)\n", + sc->sc_intr_number); + return (EIO); + } + } + + return (0); +} + +static void +ubsa_close(void *addr, int portno) +{ + struct ubsa_softc *sc; + int err; + + sc = addr; + if (sc->sc_ucom.sc_dying) + return; + + DPRINTF(("ubsa_close: close\n")); + + if (sc->sc_intr_pipe != NULL) { + err = usbd_abort_pipe(sc->sc_intr_pipe); + if (err) + device_printf(sc->sc_ucom.sc_dev, + "abort interrupt pipe failed: %s\n", + usbd_errstr(err)); + err = usbd_close_pipe(sc->sc_intr_pipe); + if (err) + device_printf(sc->sc_ucom.sc_dev, + "close interrupt pipe failed: %s\n", + usbd_errstr(err)); + free(sc->sc_intr_buf, M_USBDEV); + sc->sc_intr_pipe = NULL; + } +} + +static void +ubsa_intr(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) +{ + struct ubsa_softc *sc; + u_char *buf; + + sc = priv; + buf = sc->sc_intr_buf; + if (sc->sc_ucom.sc_dying) + return; + + if (status != USBD_NORMAL_COMPLETION) { + if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) + return; + + DPRINTF(("%s: ubsa_intr: abnormal status: %s\n", + device_get_nameunit(sc->sc_ucom.sc_dev), + usbd_errstr(status))); + usbd_clear_endpoint_stall_async(sc->sc_intr_pipe); + return; + } + + /* incidentally, Belkin adapter status bits match UART 16550 bits */ + sc->sc_lsr = buf[2]; + sc->sc_msr = buf[3]; + + DPRINTF(("%s: ubsa lsr = 0x%02x, msr = 0x%02x\n", + device_get_nameunit(sc->sc_ucom.sc_dev), sc->sc_lsr, sc->sc_msr)); + + taskqueue_enqueue(taskqueue_swi_giant, &sc->sc_task); +} + +/* Handle delayed events. */ +static void +ubsa_notify(void *arg, int count) +{ + struct ubsa_softc *sc; + + sc = arg; + ucom_status_change(&sc->sc_ucom); +} + +static void +ubsa_get_status(void *addr, int portno, u_char *lsr, u_char *msr) +{ + struct ubsa_softc *sc; + + DPRINTF(("ubsa_get_status\n")); + + sc = addr; + if (lsr != NULL) + *lsr = sc->sc_lsr; + if (msr != NULL) + *msr = sc->sc_msr; +} |
