09979ece0f
cp2103 usb-to-serial chip. - This patch also makes the line status polling asynchronous, to reduce the time needed to change the GPIO pins. Submitted by: JD Louw MFC after: 1 week
824 lines
21 KiB
C
824 lines
21 KiB
C
/* $OpenBSD: uslcom.c,v 1.17 2007/11/24 10:52:12 jsg Exp $ */
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/*
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* Copyright (c) 2006 Jonathan Gray <jsg@openbsd.org>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/stdint.h>
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#include <sys/stddef.h>
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#include <sys/param.h>
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#include <sys/queue.h>
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#include <sys/types.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/bus.h>
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#include <sys/module.h>
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#include <sys/lock.h>
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#include <sys/mutex.h>
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#include <sys/condvar.h>
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#include <sys/sysctl.h>
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#include <sys/sx.h>
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#include <sys/unistd.h>
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#include <sys/callout.h>
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#include <sys/malloc.h>
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#include <sys/priv.h>
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#include <dev/usb/usb.h>
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#include <dev/usb/usbdi.h>
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#include <dev/usb/usbdi_util.h>
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#include <dev/usb/usb_ioctl.h>
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#include "usbdevs.h"
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#define USB_DEBUG_VAR uslcom_debug
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#include <dev/usb/usb_debug.h>
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#include <dev/usb/usb_process.h>
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#include <dev/usb/serial/usb_serial.h>
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#ifdef USB_DEBUG
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static int uslcom_debug = 0;
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static SYSCTL_NODE(_hw_usb, OID_AUTO, uslcom, CTLFLAG_RW, 0, "USB uslcom");
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SYSCTL_INT(_hw_usb_uslcom, OID_AUTO, debug, CTLFLAG_RW,
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&uslcom_debug, 0, "Debug level");
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#endif
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#define USLCOM_BULK_BUF_SIZE 1024
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#define USLCOM_CONFIG_INDEX 0
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#define USLCOM_IFACE_INDEX 0
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#define USLCOM_SET_DATA_BITS(x) ((x) << 8)
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/* Request types */
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#define USLCOM_WRITE 0x41
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#define USLCOM_READ 0xc1
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/* Request codes */
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#define USLCOM_UART 0x00
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#define USLCOM_BAUD_RATE 0x01
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#define USLCOM_DATA 0x03
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#define USLCOM_BREAK 0x05
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#define USLCOM_CTRL 0x07
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#define USLCOM_RCTRL 0x08
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#define USLCOM_SET_FLOWCTRL 0x13
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#define USLCOM_VENDOR_SPECIFIC 0xff
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/* USLCOM_UART values */
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#define USLCOM_UART_DISABLE 0x00
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#define USLCOM_UART_ENABLE 0x01
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/* USLCOM_CTRL/USLCOM_RCTRL values */
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#define USLCOM_CTRL_DTR_ON 0x0001
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#define USLCOM_CTRL_DTR_SET 0x0100
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#define USLCOM_CTRL_RTS_ON 0x0002
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#define USLCOM_CTRL_RTS_SET 0x0200
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#define USLCOM_CTRL_CTS 0x0010
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#define USLCOM_CTRL_DSR 0x0020
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#define USLCOM_CTRL_RI 0x0040
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#define USLCOM_CTRL_DCD 0x0080
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/* USLCOM_BAUD_RATE values */
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#define USLCOM_BAUD_REF 0x384000
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/* USLCOM_DATA values */
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#define USLCOM_STOP_BITS_1 0x00
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#define USLCOM_STOP_BITS_2 0x02
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#define USLCOM_PARITY_NONE 0x00
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#define USLCOM_PARITY_ODD 0x10
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#define USLCOM_PARITY_EVEN 0x20
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#define USLCOM_PORT_NO 0x0000
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/* USLCOM_BREAK values */
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#define USLCOM_BREAK_OFF 0x00
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#define USLCOM_BREAK_ON 0x01
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/* USLCOM_SET_FLOWCTRL values - 1st word */
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#define USLCOM_FLOW_DTR_ON 0x00000001 /* DTR static active */
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#define USLCOM_FLOW_CTS_HS 0x00000008 /* CTS handshake */
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/* USLCOM_SET_FLOWCTRL values - 2nd word */
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#define USLCOM_FLOW_RTS_ON 0x00000040 /* RTS static active */
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#define USLCOM_FLOW_RTS_HS 0x00000080 /* RTS handshake */
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/* USLCOM_VENDOR_SPECIFIC values */
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#define USLCOM_WRITE_LATCH 0x37E1
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#define USLCOM_READ_LATCH 0x00C2
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enum {
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USLCOM_BULK_DT_WR,
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USLCOM_BULK_DT_RD,
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USLCOM_CTRL_DT_RD,
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USLCOM_N_TRANSFER,
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};
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struct uslcom_softc {
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struct ucom_super_softc sc_super_ucom;
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struct ucom_softc sc_ucom;
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struct usb_callout sc_watchdog;
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struct usb_xfer *sc_xfer[USLCOM_N_TRANSFER];
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struct usb_device *sc_udev;
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struct mtx sc_mtx;
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uint8_t sc_msr;
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uint8_t sc_lsr;
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};
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static device_probe_t uslcom_probe;
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static device_attach_t uslcom_attach;
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static device_detach_t uslcom_detach;
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static usb_callback_t uslcom_write_callback;
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static usb_callback_t uslcom_read_callback;
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static usb_callback_t uslcom_control_callback;
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static void uslcom_open(struct ucom_softc *);
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static void uslcom_close(struct ucom_softc *);
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static void uslcom_set_dtr(struct ucom_softc *, uint8_t);
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static void uslcom_set_rts(struct ucom_softc *, uint8_t);
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static void uslcom_set_break(struct ucom_softc *, uint8_t);
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static int uslcom_ioctl(struct ucom_softc *, uint32_t, caddr_t, int,
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struct thread *);
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static int uslcom_pre_param(struct ucom_softc *, struct termios *);
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static void uslcom_param(struct ucom_softc *, struct termios *);
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static void uslcom_get_status(struct ucom_softc *, uint8_t *, uint8_t *);
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static void uslcom_start_read(struct ucom_softc *);
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static void uslcom_stop_read(struct ucom_softc *);
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static void uslcom_start_write(struct ucom_softc *);
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static void uslcom_stop_write(struct ucom_softc *);
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static void uslcom_poll(struct ucom_softc *ucom);
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static const struct usb_config uslcom_config[USLCOM_N_TRANSFER] = {
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[USLCOM_BULK_DT_WR] = {
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.type = UE_BULK,
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.endpoint = UE_ADDR_ANY,
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.direction = UE_DIR_OUT,
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.bufsize = USLCOM_BULK_BUF_SIZE,
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.flags = {.pipe_bof = 1,},
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.callback = &uslcom_write_callback,
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},
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[USLCOM_BULK_DT_RD] = {
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.type = UE_BULK,
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.endpoint = UE_ADDR_ANY,
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.direction = UE_DIR_IN,
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.bufsize = USLCOM_BULK_BUF_SIZE,
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.flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
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.callback = &uslcom_read_callback,
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},
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[USLCOM_CTRL_DT_RD] = {
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.type = UE_CONTROL,
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.endpoint = 0x00,
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.direction = UE_DIR_ANY,
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.bufsize = sizeof(struct usb_device_request) + 8,
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.flags = {.pipe_bof = 1,},
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.callback = &uslcom_control_callback,
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.timeout = 1000, /* 1 second timeout */
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},
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};
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static struct ucom_callback uslcom_callback = {
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.ucom_cfg_open = &uslcom_open,
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.ucom_cfg_close = &uslcom_close,
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.ucom_cfg_get_status = &uslcom_get_status,
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.ucom_cfg_set_dtr = &uslcom_set_dtr,
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.ucom_cfg_set_rts = &uslcom_set_rts,
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.ucom_cfg_set_break = &uslcom_set_break,
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.ucom_ioctl = &uslcom_ioctl,
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.ucom_cfg_param = &uslcom_param,
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.ucom_pre_param = &uslcom_pre_param,
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.ucom_start_read = &uslcom_start_read,
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.ucom_stop_read = &uslcom_stop_read,
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.ucom_start_write = &uslcom_start_write,
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.ucom_stop_write = &uslcom_stop_write,
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.ucom_poll = &uslcom_poll,
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};
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static const STRUCT_USB_HOST_ID uslcom_devs[] = {
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#define USLCOM_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) }
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USLCOM_DEV(BALTECH, CARDREADER),
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USLCOM_DEV(CLIPSAL, 5500PCU),
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USLCOM_DEV(DATAAPEX, MULTICOM),
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USLCOM_DEV(DELL, DW700),
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USLCOM_DEV(DIGIANSWER, ZIGBEE802154),
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USLCOM_DEV(DYNASTREAM, ANTDEVBOARD),
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USLCOM_DEV(DYNASTREAM, ANTDEVBOARD2),
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USLCOM_DEV(DYNASTREAM, ANT2USB),
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USLCOM_DEV(ELV, USBI2C),
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USLCOM_DEV(FOXCONN, PIRELLI_DP_L10),
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USLCOM_DEV(FOXCONN, TCOM_TC_300),
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USLCOM_DEV(GEMALTO, PROXPU),
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USLCOM_DEV(JABLOTRON, PC60B),
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USLCOM_DEV(MEI, CASHFLOW_SC),
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USLCOM_DEV(MEI, S2000),
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USLCOM_DEV(JABLOTRON, PC60B),
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USLCOM_DEV(OWEN, AC4),
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USLCOM_DEV(PHILIPS, ACE1001),
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USLCOM_DEV(PLX, CA42),
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USLCOM_DEV(RENESAS, RX610),
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USLCOM_DEV(SILABS, AEROCOMM),
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USLCOM_DEV(SILABS, AMBER_AMB2560),
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USLCOM_DEV(SILABS, ARGUSISP),
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USLCOM_DEV(SILABS, ARKHAM_DS101_A),
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USLCOM_DEV(SILABS, ARKHAM_DS101_M),
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USLCOM_DEV(SILABS, ARYGON_MIFARE),
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USLCOM_DEV(SILABS, AVIT_USB_TTL),
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USLCOM_DEV(SILABS, B_G_H3000),
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USLCOM_DEV(SILABS, BALLUFF_RFID),
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USLCOM_DEV(SILABS, BEI_VCP),
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USLCOM_DEV(SILABS, BSM7DUSB),
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USLCOM_DEV(SILABS, BURNSIDE),
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USLCOM_DEV(SILABS, C2_EDGE_MODEM),
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USLCOM_DEV(SILABS, CP2102),
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USLCOM_DEV(SILABS, CP210X_2),
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USLCOM_DEV(SILABS, CRUMB128),
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USLCOM_DEV(SILABS, CYGNAL),
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USLCOM_DEV(SILABS, CYGNAL_DEBUG),
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USLCOM_DEV(SILABS, CYGNAL_GPS),
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USLCOM_DEV(SILABS, DEGREE),
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USLCOM_DEV(SILABS, EMS_C1007),
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USLCOM_DEV(SILABS, HELICOM),
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USLCOM_DEV(SILABS, IMS_USB_RS422),
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USLCOM_DEV(SILABS, INFINITY_MIC),
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USLCOM_DEV(SILABS, INSYS_MODEM),
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USLCOM_DEV(SILABS, KYOCERA_GPS),
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USLCOM_DEV(SILABS, LIPOWSKY_HARP),
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USLCOM_DEV(SILABS, LIPOWSKY_JTAG),
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USLCOM_DEV(SILABS, LIPOWSKY_LIN),
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USLCOM_DEV(SILABS, MC35PU),
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USLCOM_DEV(SILABS, MJS_TOSLINK),
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USLCOM_DEV(SILABS, MSD_DASHHAWK),
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USLCOM_DEV(SILABS, POLOLU),
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USLCOM_DEV(SILABS, PROCYON_AVS),
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USLCOM_DEV(SILABS, SB_PARAMOUNT_ME),
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USLCOM_DEV(SILABS, SUUNTO),
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USLCOM_DEV(SILABS, TAMSMASTER),
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USLCOM_DEV(SILABS, TELEGESYS_ETRX2),
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USLCOM_DEV(SILABS, TRACIENT),
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USLCOM_DEV(SILABS, TRAQMATE),
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USLCOM_DEV(SILABS, USBCOUNT50),
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USLCOM_DEV(SILABS, USBPULSE100),
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USLCOM_DEV(SILABS, USBSCOPE50),
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USLCOM_DEV(SILABS, USBWAVE12),
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USLCOM_DEV(SILABS, VSTABI),
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USLCOM_DEV(SILABS, WAVIT),
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USLCOM_DEV(SILABS, WMRBATT),
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USLCOM_DEV(SILABS, WMRRIGBLASTER),
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USLCOM_DEV(SILABS, WMRRIGTALK),
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USLCOM_DEV(SILABS, ZEPHYR_BIO),
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USLCOM_DEV(SILABS2, DCU11CLONE),
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USLCOM_DEV(SILABS3, GPRS_MODEM),
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USLCOM_DEV(SILABS4, 100EU_MODEM),
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USLCOM_DEV(SYNTECH, CYPHERLAB100),
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USLCOM_DEV(USI, MC60),
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USLCOM_DEV(VAISALA, CABLE),
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USLCOM_DEV(WAGO, SERVICECABLE),
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USLCOM_DEV(WAVESENSE, JAZZ),
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USLCOM_DEV(WIENERPLEINBAUS, PL512),
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USLCOM_DEV(WIENERPLEINBAUS, RCM),
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USLCOM_DEV(WIENERPLEINBAUS, MPOD),
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USLCOM_DEV(WIENERPLEINBAUS, CML),
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#undef USLCOM_DEV
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};
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static device_method_t uslcom_methods[] = {
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DEVMETHOD(device_probe, uslcom_probe),
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DEVMETHOD(device_attach, uslcom_attach),
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DEVMETHOD(device_detach, uslcom_detach),
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{0, 0}
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};
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static devclass_t uslcom_devclass;
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static driver_t uslcom_driver = {
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.name = "uslcom",
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.methods = uslcom_methods,
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.size = sizeof(struct uslcom_softc),
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};
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DRIVER_MODULE(uslcom, uhub, uslcom_driver, uslcom_devclass, NULL, 0);
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MODULE_DEPEND(uslcom, ucom, 1, 1, 1);
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MODULE_DEPEND(uslcom, usb, 1, 1, 1);
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MODULE_VERSION(uslcom, 1);
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static void
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uslcom_watchdog(void *arg)
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{
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struct uslcom_softc *sc = arg;
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mtx_assert(&sc->sc_mtx, MA_OWNED);
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usbd_transfer_start(sc->sc_xfer[USLCOM_CTRL_DT_RD]);
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usb_callout_reset(&sc->sc_watchdog,
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hz / 4, &uslcom_watchdog, sc);
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}
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static int
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uslcom_probe(device_t dev)
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{
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struct usb_attach_arg *uaa = device_get_ivars(dev);
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DPRINTFN(11, "\n");
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if (uaa->usb_mode != USB_MODE_HOST) {
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return (ENXIO);
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}
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if (uaa->info.bConfigIndex != USLCOM_CONFIG_INDEX) {
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return (ENXIO);
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}
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if (uaa->info.bIfaceIndex != USLCOM_IFACE_INDEX) {
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return (ENXIO);
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}
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return (usbd_lookup_id_by_uaa(uslcom_devs, sizeof(uslcom_devs), uaa));
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}
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static int
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uslcom_attach(device_t dev)
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{
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struct usb_attach_arg *uaa = device_get_ivars(dev);
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struct uslcom_softc *sc = device_get_softc(dev);
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int error;
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DPRINTFN(11, "\n");
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device_set_usb_desc(dev);
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mtx_init(&sc->sc_mtx, "uslcom", NULL, MTX_DEF);
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usb_callout_init_mtx(&sc->sc_watchdog, &sc->sc_mtx, 0);
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sc->sc_udev = uaa->device;
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error = usbd_transfer_setup(uaa->device,
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&uaa->info.bIfaceIndex, sc->sc_xfer, uslcom_config,
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USLCOM_N_TRANSFER, sc, &sc->sc_mtx);
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if (error) {
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DPRINTF("one or more missing USB endpoints, "
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"error=%s\n", usbd_errstr(error));
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goto detach;
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}
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/* clear stall at first run */
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mtx_lock(&sc->sc_mtx);
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usbd_xfer_set_stall(sc->sc_xfer[USLCOM_BULK_DT_WR]);
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usbd_xfer_set_stall(sc->sc_xfer[USLCOM_BULK_DT_RD]);
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mtx_unlock(&sc->sc_mtx);
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error = ucom_attach(&sc->sc_super_ucom, &sc->sc_ucom, 1, sc,
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&uslcom_callback, &sc->sc_mtx);
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if (error) {
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goto detach;
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}
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ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev);
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return (0);
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detach:
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uslcom_detach(dev);
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return (ENXIO);
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}
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static int
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uslcom_detach(device_t dev)
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{
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struct uslcom_softc *sc = device_get_softc(dev);
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DPRINTF("sc=%p\n", sc);
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ucom_detach(&sc->sc_super_ucom, &sc->sc_ucom);
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usbd_transfer_unsetup(sc->sc_xfer, USLCOM_N_TRANSFER);
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usb_callout_drain(&sc->sc_watchdog);
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mtx_destroy(&sc->sc_mtx);
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return (0);
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}
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static void
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uslcom_open(struct ucom_softc *ucom)
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{
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struct uslcom_softc *sc = ucom->sc_parent;
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struct usb_device_request req;
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req.bmRequestType = USLCOM_WRITE;
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req.bRequest = USLCOM_UART;
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USETW(req.wValue, USLCOM_UART_ENABLE);
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USETW(req.wIndex, USLCOM_PORT_NO);
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USETW(req.wLength, 0);
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|
|
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);
|
|
}
|