585b13f2cb
conversion. Submitted by: Hans Petter Selasky
638 lines
15 KiB
C
638 lines
15 KiB
C
#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/*-
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* Copyright (c) 2003 Scott Long
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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/*
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* Driver for the MCT (Magic Control Technology) USB-RS232 Converter.
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* Based on the superb documentation from the linux mct_u232 driver by
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* Wolfgang Grandeggar <wolfgang@cec.ch>.
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* This device smells a lot like the Belkin F5U103, except that it has
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* suffered some mild brain-damage. This driver is based off of the ubsa.c
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* driver from Alexander Kabaev <kan@FreeBSD.org>. Merging the two together
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* might be useful, though the subtle differences might lead to lots of
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* #ifdef's.
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*/
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/*
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* NOTE: all function names beginning like "umct_cfg_" can only
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* be called from within the config thread function !
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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/linker_set.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 "usbdevs.h"
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#define USB_DEBUG_VAR usb_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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/* The UMCT advertises the standard 8250 UART registers */
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#define UMCT_GET_MSR 2 /* Get Modem Status Register */
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#define UMCT_GET_MSR_SIZE 1
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#define UMCT_GET_LCR 6 /* Get Line Control Register */
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#define UMCT_GET_LCR_SIZE 1
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#define UMCT_SET_BAUD 5 /* Set the Baud Rate Divisor */
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#define UMCT_SET_BAUD_SIZE 4
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#define UMCT_SET_LCR 7 /* Set Line Control Register */
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#define UMCT_SET_LCR_SIZE 1
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#define UMCT_SET_MCR 10 /* Set Modem Control Register */
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#define UMCT_SET_MCR_SIZE 1
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#define UMCT_INTR_INTERVAL 100
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#define UMCT_IFACE_INDEX 0
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#define UMCT_CONFIG_INDEX 0
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enum {
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UMCT_BULK_DT_WR,
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UMCT_BULK_DT_RD,
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UMCT_INTR_DT_RD,
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UMCT_N_TRANSFER,
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};
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struct umct_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_device *sc_udev;
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struct usb_xfer *sc_xfer[UMCT_N_TRANSFER];
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struct mtx sc_mtx;
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uint32_t sc_unit;
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uint16_t sc_obufsize;
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uint8_t sc_lsr;
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uint8_t sc_msr;
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uint8_t sc_lcr;
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uint8_t sc_mcr;
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uint8_t sc_iface_no;
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uint8_t sc_swap_cb;
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uint8_t sc_name[16];
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};
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/* prototypes */
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static device_probe_t umct_probe;
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static device_attach_t umct_attach;
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static device_detach_t umct_detach;
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static usb_callback_t umct_intr_callback;
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static usb_callback_t umct_intr_callback_sub;
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static usb_callback_t umct_read_callback;
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static usb_callback_t umct_read_callback_sub;
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static usb_callback_t umct_write_callback;
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static void umct_cfg_do_request(struct umct_softc *sc, uint8_t request,
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uint16_t len, uint32_t value);
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static void umct_cfg_get_status(struct ucom_softc *, uint8_t *,
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uint8_t *);
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static void umct_cfg_set_break(struct ucom_softc *, uint8_t);
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static void umct_cfg_set_dtr(struct ucom_softc *, uint8_t);
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static void umct_cfg_set_rts(struct ucom_softc *, uint8_t);
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static uint8_t umct_calc_baud(uint32_t);
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static int umct_pre_param(struct ucom_softc *, struct termios *);
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static void umct_cfg_param(struct ucom_softc *, struct termios *);
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static void umct_start_read(struct ucom_softc *);
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static void umct_stop_read(struct ucom_softc *);
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static void umct_start_write(struct ucom_softc *);
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static void umct_stop_write(struct ucom_softc *);
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static void umct_poll(struct ucom_softc *ucom);
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static const struct usb_config umct_config[UMCT_N_TRANSFER] = {
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[UMCT_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 = 0, /* use wMaxPacketSize */
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.flags = {.pipe_bof = 1,.force_short_xfer = 1,},
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.callback = &umct_write_callback,
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},
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[UMCT_BULK_DT_RD] = {
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.type = UE_INTERRUPT,
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.endpoint = UE_ADDR_ANY,
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.direction = UE_DIR_IN,
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.flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
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.bufsize = 0, /* use wMaxPacketSize */
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.callback = &umct_read_callback,
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.ep_index = 0, /* first interrupt endpoint */
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},
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[UMCT_INTR_DT_RD] = {
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.type = UE_INTERRUPT,
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.endpoint = UE_ADDR_ANY,
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.direction = UE_DIR_IN,
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.flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
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.bufsize = 0, /* use wMaxPacketSize */
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.callback = &umct_intr_callback,
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.ep_index = 1, /* second interrupt endpoint */
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},
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};
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static const struct ucom_callback umct_callback = {
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.ucom_cfg_get_status = &umct_cfg_get_status,
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.ucom_cfg_set_dtr = &umct_cfg_set_dtr,
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.ucom_cfg_set_rts = &umct_cfg_set_rts,
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.ucom_cfg_set_break = &umct_cfg_set_break,
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.ucom_cfg_param = &umct_cfg_param,
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.ucom_pre_param = &umct_pre_param,
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.ucom_start_read = &umct_start_read,
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.ucom_stop_read = &umct_stop_read,
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.ucom_start_write = &umct_start_write,
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.ucom_stop_write = &umct_stop_write,
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.ucom_poll = &umct_poll,
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};
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static const struct usb_device_id umct_devs[] = {
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{USB_VPI(USB_VENDOR_MCT, USB_PRODUCT_MCT_USB232, 0)},
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{USB_VPI(USB_VENDOR_MCT, USB_PRODUCT_MCT_SITECOM_USB232, 0)},
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{USB_VPI(USB_VENDOR_MCT, USB_PRODUCT_MCT_DU_H3SP_USB232, 0)},
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{USB_VPI(USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5U109, 0)},
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{USB_VPI(USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5U409, 0)},
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};
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static device_method_t umct_methods[] = {
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DEVMETHOD(device_probe, umct_probe),
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DEVMETHOD(device_attach, umct_attach),
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DEVMETHOD(device_detach, umct_detach),
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{0, 0}
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};
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static devclass_t umct_devclass;
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static driver_t umct_driver = {
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.name = "umct",
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.methods = umct_methods,
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.size = sizeof(struct umct_softc),
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};
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DRIVER_MODULE(umct, uhub, umct_driver, umct_devclass, NULL, 0);
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MODULE_DEPEND(umct, ucom, 1, 1, 1);
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MODULE_DEPEND(umct, usb, 1, 1, 1);
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static int
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umct_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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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 != UMCT_CONFIG_INDEX) {
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return (ENXIO);
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}
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if (uaa->info.bIfaceIndex != UMCT_IFACE_INDEX) {
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return (ENXIO);
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}
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return (usbd_lookup_id_by_uaa(umct_devs, sizeof(umct_devs), uaa));
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}
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static int
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umct_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 umct_softc *sc = device_get_softc(dev);
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int32_t error;
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uint16_t maxp;
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uint8_t iface_index;
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sc->sc_udev = uaa->device;
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sc->sc_unit = device_get_unit(dev);
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device_set_usb_desc(dev);
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mtx_init(&sc->sc_mtx, "umct", NULL, MTX_DEF);
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snprintf(sc->sc_name, sizeof(sc->sc_name),
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"%s", device_get_nameunit(dev));
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sc->sc_iface_no = uaa->info.bIfaceNum;
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iface_index = UMCT_IFACE_INDEX;
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error = usbd_transfer_setup(uaa->device, &iface_index,
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sc->sc_xfer, umct_config, UMCT_N_TRANSFER, sc, &sc->sc_mtx);
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if (error) {
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device_printf(dev, "allocating USB "
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"transfers failed!\n");
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goto detach;
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}
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/*
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* The real bulk-in endpoint is also marked as an interrupt.
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* The only way to differentiate it from the real interrupt
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* endpoint is to look at the wMaxPacketSize field.
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*/
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maxp = usbd_xfer_max_framelen(sc->sc_xfer[UMCT_BULK_DT_RD]);
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if (maxp == 0x2) {
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/* guessed wrong - switch around endpoints */
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struct usb_xfer *temp = sc->sc_xfer[UMCT_INTR_DT_RD];
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sc->sc_xfer[UMCT_INTR_DT_RD] = sc->sc_xfer[UMCT_BULK_DT_RD];
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sc->sc_xfer[UMCT_BULK_DT_RD] = temp;
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sc->sc_swap_cb = 1;
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}
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sc->sc_obufsize = usbd_xfer_max_len(sc->sc_xfer[UMCT_BULK_DT_WR]);
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if (uaa->info.idProduct == USB_PRODUCT_MCT_SITECOM_USB232) {
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if (sc->sc_obufsize > 16) {
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sc->sc_obufsize = 16;
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}
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}
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error = ucom_attach(&sc->sc_super_ucom, &sc->sc_ucom, 1, sc,
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&umct_callback, &sc->sc_mtx);
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if (error) {
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goto detach;
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}
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return (0); /* success */
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detach:
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umct_detach(dev);
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return (ENXIO); /* failure */
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}
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static int
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umct_detach(device_t dev)
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{
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struct umct_softc *sc = device_get_softc(dev);
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ucom_detach(&sc->sc_super_ucom, &sc->sc_ucom, 1);
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usbd_transfer_unsetup(sc->sc_xfer, UMCT_N_TRANSFER);
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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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umct_cfg_do_request(struct umct_softc *sc, uint8_t request,
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uint16_t len, uint32_t value)
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{
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struct usb_device_request req;
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usb_error_t err;
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uint8_t temp[4];
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if (len > 4)
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len = 4;
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req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
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req.bRequest = request;
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USETW(req.wValue, 0);
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req.wIndex[0] = sc->sc_iface_no;
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req.wIndex[1] = 0;
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USETW(req.wLength, len);
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USETDW(temp, value);
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err = ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
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&req, temp, 0, 1000);
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if (err) {
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DPRINTFN(0, "device request failed, err=%s "
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"(ignored)\n", usbd_errstr(err));
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}
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return;
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}
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static void
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umct_intr_callback_sub(struct usb_xfer *xfer, usb_error_t error)
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{
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struct umct_softc *sc = usbd_xfer_softc(xfer);
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struct usb_page_cache *pc;
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uint8_t buf[2];
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int actlen;
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usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
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switch (USB_GET_STATE(xfer)) {
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case USB_ST_TRANSFERRED:
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if (actlen < 2) {
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DPRINTF("too short message\n");
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goto tr_setup;
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}
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pc = usbd_xfer_get_frame(xfer, 0);
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usbd_copy_out(pc, 0, buf, sizeof(buf));
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sc->sc_msr = buf[0];
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sc->sc_lsr = buf[1];
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ucom_status_change(&sc->sc_ucom);
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case USB_ST_SETUP:
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tr_setup:
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usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
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usbd_transfer_submit(xfer);
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return;
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default: /* Error */
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if (error != USB_ERR_CANCELLED) {
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/* try to clear stall first */
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usbd_xfer_set_stall(xfer);
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goto tr_setup;
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}
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return;
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}
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}
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static void
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umct_cfg_get_status(struct ucom_softc *ucom, uint8_t *lsr, uint8_t *msr)
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{
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struct umct_softc *sc = ucom->sc_parent;
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*lsr = sc->sc_lsr;
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*msr = sc->sc_msr;
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}
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static void
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umct_cfg_set_break(struct ucom_softc *ucom, uint8_t onoff)
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{
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struct umct_softc *sc = ucom->sc_parent;
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if (onoff)
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sc->sc_lcr |= 0x40;
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else
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sc->sc_lcr &= ~0x40;
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umct_cfg_do_request(sc, UMCT_SET_LCR, UMCT_SET_LCR_SIZE, sc->sc_lcr);
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}
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static void
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umct_cfg_set_dtr(struct ucom_softc *ucom, uint8_t onoff)
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{
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struct umct_softc *sc = ucom->sc_parent;
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if (onoff)
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sc->sc_mcr |= 0x01;
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else
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sc->sc_mcr &= ~0x01;
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umct_cfg_do_request(sc, UMCT_SET_MCR, UMCT_SET_MCR_SIZE, sc->sc_mcr);
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}
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static void
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umct_cfg_set_rts(struct ucom_softc *ucom, uint8_t onoff)
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{
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struct umct_softc *sc = ucom->sc_parent;
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if (onoff)
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sc->sc_mcr |= 0x02;
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else
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sc->sc_mcr &= ~0x02;
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umct_cfg_do_request(sc, UMCT_SET_MCR, UMCT_SET_MCR_SIZE, sc->sc_mcr);
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}
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static uint8_t
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umct_calc_baud(uint32_t baud)
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{
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switch (baud) {
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case B300:return (0x1);
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case B600:
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return (0x2);
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case B1200:
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return (0x3);
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case B2400:
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return (0x4);
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case B4800:
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return (0x6);
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case B9600:
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return (0x8);
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case B19200:
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return (0x9);
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case B38400:
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return (0xa);
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case B57600:
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return (0xb);
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case 115200:
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return (0xc);
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case B0:
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default:
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break;
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}
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return (0x0);
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}
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static int
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umct_pre_param(struct ucom_softc *ucom, struct termios *t)
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{
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return (0); /* we accept anything */
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}
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static void
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umct_cfg_param(struct ucom_softc *ucom, struct termios *t)
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{
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struct umct_softc *sc = ucom->sc_parent;
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uint32_t value;
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value = umct_calc_baud(t->c_ospeed);
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umct_cfg_do_request(sc, UMCT_SET_BAUD, UMCT_SET_BAUD_SIZE, value);
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value = (sc->sc_lcr & 0x40);
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switch (t->c_cflag & CSIZE) {
|
|
case CS5:
|
|
value |= 0x0;
|
|
break;
|
|
case CS6:
|
|
value |= 0x1;
|
|
break;
|
|
case CS7:
|
|
value |= 0x2;
|
|
break;
|
|
default:
|
|
case CS8:
|
|
value |= 0x3;
|
|
break;
|
|
}
|
|
|
|
value |= (t->c_cflag & CSTOPB) ? 0x4 : 0;
|
|
if (t->c_cflag & PARENB) {
|
|
value |= 0x8;
|
|
value |= (t->c_cflag & PARODD) ? 0x0 : 0x10;
|
|
}
|
|
/*
|
|
* XXX There doesn't seem to be a way to tell the device
|
|
* to use flow control.
|
|
*/
|
|
|
|
sc->sc_lcr = value;
|
|
umct_cfg_do_request(sc, UMCT_SET_LCR, UMCT_SET_LCR_SIZE, value);
|
|
}
|
|
|
|
static void
|
|
umct_start_read(struct ucom_softc *ucom)
|
|
{
|
|
struct umct_softc *sc = ucom->sc_parent;
|
|
|
|
/* start interrupt endpoint */
|
|
usbd_transfer_start(sc->sc_xfer[UMCT_INTR_DT_RD]);
|
|
|
|
/* start read endpoint */
|
|
usbd_transfer_start(sc->sc_xfer[UMCT_BULK_DT_RD]);
|
|
}
|
|
|
|
static void
|
|
umct_stop_read(struct ucom_softc *ucom)
|
|
{
|
|
struct umct_softc *sc = ucom->sc_parent;
|
|
|
|
/* stop interrupt endpoint */
|
|
usbd_transfer_stop(sc->sc_xfer[UMCT_INTR_DT_RD]);
|
|
|
|
/* stop read endpoint */
|
|
usbd_transfer_stop(sc->sc_xfer[UMCT_BULK_DT_RD]);
|
|
}
|
|
|
|
static void
|
|
umct_start_write(struct ucom_softc *ucom)
|
|
{
|
|
struct umct_softc *sc = ucom->sc_parent;
|
|
|
|
usbd_transfer_start(sc->sc_xfer[UMCT_BULK_DT_WR]);
|
|
}
|
|
|
|
static void
|
|
umct_stop_write(struct ucom_softc *ucom)
|
|
{
|
|
struct umct_softc *sc = ucom->sc_parent;
|
|
|
|
usbd_transfer_stop(sc->sc_xfer[UMCT_BULK_DT_WR]);
|
|
}
|
|
|
|
static void
|
|
umct_read_callback(struct usb_xfer *xfer, usb_error_t error)
|
|
{
|
|
struct umct_softc *sc = usbd_xfer_softc(xfer);
|
|
|
|
if (sc->sc_swap_cb)
|
|
umct_intr_callback_sub(xfer, error);
|
|
else
|
|
umct_read_callback_sub(xfer, error);
|
|
}
|
|
|
|
static void
|
|
umct_intr_callback(struct usb_xfer *xfer, usb_error_t error)
|
|
{
|
|
struct umct_softc *sc = usbd_xfer_softc(xfer);
|
|
|
|
if (sc->sc_swap_cb)
|
|
umct_read_callback_sub(xfer, error);
|
|
else
|
|
umct_intr_callback_sub(xfer, error);
|
|
}
|
|
|
|
static void
|
|
umct_write_callback(struct usb_xfer *xfer, usb_error_t error)
|
|
{
|
|
struct umct_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,
|
|
sc->sc_obufsize, &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
|
|
umct_read_callback_sub(struct usb_xfer *xfer, usb_error_t error)
|
|
{
|
|
struct umct_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
|
|
umct_poll(struct ucom_softc *ucom)
|
|
{
|
|
struct umct_softc *sc = ucom->sc_parent;
|
|
usbd_transfer_poll(sc->sc_xfer, UMCT_N_TRANSFER);
|
|
}
|