828 lines
20 KiB
C
828 lines
20 KiB
C
/* $NetBSD: uftdi.c,v 1.13 2002/09/23 05:51:23 simonb Exp $ */
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/*-
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* Copyright (c) 2000 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Lennart Augustsson (lennart@augustsson.net).
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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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/*
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* NOTE: all function names beginning like "uftdi_cfg_" can only
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* be called from within the config thread function !
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*/
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/*
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* FTDI FT8U100AX serial adapter driver
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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 uftdi_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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#include <dev/usb/serial/uftdi_reg.h>
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#if USB_DEBUG
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static int uftdi_debug = 0;
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SYSCTL_NODE(_hw_usb, OID_AUTO, uftdi, CTLFLAG_RW, 0, "USB uftdi");
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SYSCTL_INT(_hw_usb_uftdi, OID_AUTO, debug, CTLFLAG_RW,
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&uftdi_debug, 0, "Debug level");
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#endif
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#define UFTDI_CONFIG_INDEX 0
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#define UFTDI_IFACE_INDEX 0
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#define UFTDI_IBUFSIZE 64 /* bytes, maximum number of bytes per
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* frame */
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#define UFTDI_OBUFSIZE 64 /* bytes, cannot be increased due to
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* do size encoding */
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enum {
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UFTDI_BULK_DT_WR,
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UFTDI_BULK_DT_RD,
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UFTDI_N_TRANSFER,
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};
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struct uftdi_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[UFTDI_N_TRANSFER];
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device_t sc_dev;
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struct mtx sc_mtx;
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uint32_t sc_unit;
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enum uftdi_type sc_type;
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uint16_t sc_last_lcr;
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uint8_t sc_iface_index;
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uint8_t sc_hdrlen;
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uint8_t sc_msr;
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uint8_t sc_lsr;
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uint8_t sc_name[16];
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};
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struct uftdi_param_config {
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uint16_t rate;
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uint16_t lcr;
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uint8_t v_start;
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uint8_t v_stop;
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uint8_t v_flow;
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};
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/* prototypes */
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static device_probe_t uftdi_probe;
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static device_attach_t uftdi_attach;
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static device_detach_t uftdi_detach;
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static usb_callback_t uftdi_write_callback;
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static usb_callback_t uftdi_read_callback;
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static void uftdi_cfg_open(struct ucom_softc *);
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static void uftdi_cfg_set_dtr(struct ucom_softc *, uint8_t);
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static void uftdi_cfg_set_rts(struct ucom_softc *, uint8_t);
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static void uftdi_cfg_set_break(struct ucom_softc *, uint8_t);
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static int uftdi_set_parm_soft(struct termios *,
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struct uftdi_param_config *, uint8_t);
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static int uftdi_pre_param(struct ucom_softc *, struct termios *);
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static void uftdi_cfg_param(struct ucom_softc *, struct termios *);
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static void uftdi_cfg_get_status(struct ucom_softc *, uint8_t *,
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uint8_t *);
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static void uftdi_start_read(struct ucom_softc *);
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static void uftdi_stop_read(struct ucom_softc *);
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static void uftdi_start_write(struct ucom_softc *);
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static void uftdi_stop_write(struct ucom_softc *);
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static uint8_t uftdi_8u232am_getrate(uint32_t, uint16_t *);
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static void uftdi_poll(struct ucom_softc *ucom);
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static const struct usb_config uftdi_config[UFTDI_N_TRANSFER] = {
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[UFTDI_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 = UFTDI_OBUFSIZE,
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.flags = {.pipe_bof = 1,},
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.callback = &uftdi_write_callback,
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},
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[UFTDI_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 = UFTDI_IBUFSIZE,
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.flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
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.callback = &uftdi_read_callback,
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},
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};
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static const struct ucom_callback uftdi_callback = {
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.ucom_cfg_get_status = &uftdi_cfg_get_status,
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.ucom_cfg_set_dtr = &uftdi_cfg_set_dtr,
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.ucom_cfg_set_rts = &uftdi_cfg_set_rts,
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.ucom_cfg_set_break = &uftdi_cfg_set_break,
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.ucom_cfg_param = &uftdi_cfg_param,
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.ucom_cfg_open = &uftdi_cfg_open,
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.ucom_pre_param = &uftdi_pre_param,
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.ucom_start_read = &uftdi_start_read,
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.ucom_stop_read = &uftdi_stop_read,
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.ucom_start_write = &uftdi_start_write,
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.ucom_stop_write = &uftdi_stop_write,
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.ucom_poll = &uftdi_poll,
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};
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static device_method_t uftdi_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, uftdi_probe),
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DEVMETHOD(device_attach, uftdi_attach),
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DEVMETHOD(device_detach, uftdi_detach),
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{0, 0}
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};
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static devclass_t uftdi_devclass;
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static driver_t uftdi_driver = {
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.name = "uftdi",
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.methods = uftdi_methods,
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.size = sizeof(struct uftdi_softc),
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};
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DRIVER_MODULE(uftdi, uhub, uftdi_driver, uftdi_devclass, NULL, 0);
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MODULE_DEPEND(uftdi, ucom, 1, 1, 1);
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MODULE_DEPEND(uftdi, usb, 1, 1, 1);
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static struct usb_device_id uftdi_devs[] = {
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#define UFTDI_DEV(v,p,t) \
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{ USB_VPI(USB_VENDOR_##v, USB_PRODUCT_##v##_##p, UFTDI_TYPE_##t) }
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UFTDI_DEV(ATMEL, STK541, 8U232AM),
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UFTDI_DEV(DRESDENELEKTRONIK, SENSORTERMINALBOARD, 8U232AM),
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UFTDI_DEV(DRESDENELEKTRONIK, WIRELESSHANDHELDTERMINAL, 8U232AM),
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UFTDI_DEV(FTDI, SERIAL_8U100AX, SIO),
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UFTDI_DEV(FTDI, SERIAL_2232C, 8U232AM),
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UFTDI_DEV(FTDI, SERIAL_2232D, 8U232AM),
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UFTDI_DEV(FTDI, SERIAL_8U232AM, 8U232AM),
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UFTDI_DEV(FTDI, SERIAL_8U232AM4, 8U232AM),
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UFTDI_DEV(FTDI, SEMC_DSS20, 8U232AM),
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UFTDI_DEV(FTDI, CFA_631, 8U232AM),
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UFTDI_DEV(FTDI, CFA_632, 8U232AM),
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UFTDI_DEV(FTDI, CFA_633, 8U232AM),
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UFTDI_DEV(FTDI, CFA_634, 8U232AM),
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UFTDI_DEV(FTDI, CFA_635, 8U232AM),
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UFTDI_DEV(FTDI, USBSERIAL, 8U232AM),
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UFTDI_DEV(FTDI, MX2_3, 8U232AM),
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UFTDI_DEV(FTDI, MX4_5, 8U232AM),
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UFTDI_DEV(FTDI, LK202, 8U232AM),
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UFTDI_DEV(FTDI, LK204, 8U232AM),
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UFTDI_DEV(FTDI, TACTRIX_OPENPORT_13M, 8U232AM),
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UFTDI_DEV(FTDI, TACTRIX_OPENPORT_13S, 8U232AM),
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UFTDI_DEV(FTDI, TACTRIX_OPENPORT_13U, 8U232AM),
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UFTDI_DEV(FTDI, EISCOU, 8U232AM),
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UFTDI_DEV(FTDI, UOPTBR, 8U232AM),
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UFTDI_DEV(FTDI, EMCU2D, 8U232AM),
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UFTDI_DEV(FTDI, PCMSFU, 8U232AM),
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UFTDI_DEV(FTDI, EMCU2H, 8U232AM),
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UFTDI_DEV(FTDI, MAXSTREAM, 8U232AM),
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UFTDI_DEV(FTDI, CTI_USB_NANO_485, 8U232AM),
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UFTDI_DEV(FTDI, CTI_USB_MINI_485, 8U232AM),
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UFTDI_DEV(SIIG2, US2308, 8U232AM),
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UFTDI_DEV(INTREPIDCS, VALUECAN, 8U232AM),
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UFTDI_DEV(INTREPIDCS, NEOVI, 8U232AM),
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UFTDI_DEV(BBELECTRONICS, USOTL4, 8U232AM),
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UFTDI_DEV(MARVELL, SHEEVAPLUG, 8U232AM),
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UFTDI_DEV(MELCO, PCOPRS1, 8U232AM),
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UFTDI_DEV(RATOC, REXUSB60F, 8U232AM),
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#undef UFTDI_DEV
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};
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static int
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uftdi_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 != UFTDI_CONFIG_INDEX) {
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return (ENXIO);
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}
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/* attach to all present interfaces */
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return (usbd_lookup_id_by_uaa(uftdi_devs, sizeof(uftdi_devs), uaa));
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}
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static int
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uftdi_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 uftdi_softc *sc = device_get_softc(dev);
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int error;
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sc->sc_udev = uaa->device;
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sc->sc_dev = dev;
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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, "uftdi", 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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DPRINTF("\n");
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sc->sc_iface_index = uaa->info.bIfaceIndex;
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sc->sc_type = USB_GET_DRIVER_INFO(uaa);
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switch (sc->sc_type) {
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case UFTDI_TYPE_SIO:
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sc->sc_hdrlen = 1;
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break;
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case UFTDI_TYPE_8U232AM:
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default:
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sc->sc_hdrlen = 0;
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break;
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}
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error = usbd_transfer_setup(uaa->device,
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&sc->sc_iface_index, sc->sc_xfer, uftdi_config,
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UFTDI_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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sc->sc_ucom.sc_portno = FTDI_PIT_SIOA + uaa->info.bIfaceNum;
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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[UFTDI_BULK_DT_WR]);
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usbd_xfer_set_stall(sc->sc_xfer[UFTDI_BULK_DT_RD]);
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mtx_unlock(&sc->sc_mtx);
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/* set a valid "lcr" value */
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sc->sc_last_lcr =
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(FTDI_SIO_SET_DATA_STOP_BITS_2 |
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FTDI_SIO_SET_DATA_PARITY_NONE |
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FTDI_SIO_SET_DATA_BITS(8));
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error = ucom_attach(&sc->sc_super_ucom, &sc->sc_ucom, 1, sc,
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&uftdi_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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uftdi_detach(dev);
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return (ENXIO);
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}
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static int
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uftdi_detach(device_t dev)
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{
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struct uftdi_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, UFTDI_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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uftdi_cfg_open(struct ucom_softc *ucom)
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{
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struct uftdi_softc *sc = ucom->sc_parent;
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uint16_t wIndex = ucom->sc_portno;
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struct usb_device_request req;
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DPRINTF("");
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/* perform a full reset on the device */
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req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
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req.bRequest = FTDI_SIO_RESET;
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USETW(req.wValue, FTDI_SIO_RESET_SIO);
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USETW(req.wIndex, wIndex);
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USETW(req.wLength, 0);
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ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
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&req, NULL, 0, 1000);
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/* turn on RTS/CTS flow control */
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req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
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req.bRequest = FTDI_SIO_SET_FLOW_CTRL;
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USETW(req.wValue, 0);
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USETW2(req.wIndex, FTDI_SIO_RTS_CTS_HS, wIndex);
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USETW(req.wLength, 0);
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ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
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&req, NULL, 0, 1000);
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/*
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* NOTE: with the new UCOM layer there will always be a
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* "uftdi_cfg_param()" call after "open()", so there is no need for
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* "open()" to configure anything
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*/
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}
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static void
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uftdi_write_callback(struct usb_xfer *xfer, usb_error_t error)
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{
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struct uftdi_softc *sc = usbd_xfer_softc(xfer);
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struct usb_page_cache *pc;
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uint32_t actlen;
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uint8_t buf[1];
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switch (USB_GET_STATE(xfer)) {
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case USB_ST_SETUP:
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case USB_ST_TRANSFERRED:
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tr_setup:
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pc = usbd_xfer_get_frame(xfer, 0);
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if (ucom_get_data(&sc->sc_ucom, pc,
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sc->sc_hdrlen, UFTDI_OBUFSIZE - sc->sc_hdrlen,
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&actlen)) {
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if (sc->sc_hdrlen > 0) {
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buf[0] =
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FTDI_OUT_TAG(actlen, sc->sc_ucom.sc_portno);
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usbd_copy_in(pc, 0, buf, 1);
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}
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usbd_xfer_set_frame_len(xfer, 0, actlen + sc->sc_hdrlen);
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usbd_transfer_submit(xfer);
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}
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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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uftdi_read_callback(struct usb_xfer *xfer, usb_error_t error)
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{
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struct uftdi_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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uint8_t ftdi_msr;
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uint8_t msr;
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uint8_t lsr;
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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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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, 2);
|
|
|
|
ftdi_msr = FTDI_GET_MSR(buf);
|
|
lsr = FTDI_GET_LSR(buf);
|
|
|
|
msr = 0;
|
|
if (ftdi_msr & FTDI_SIO_CTS_MASK)
|
|
msr |= SER_CTS;
|
|
if (ftdi_msr & FTDI_SIO_DSR_MASK)
|
|
msr |= SER_DSR;
|
|
if (ftdi_msr & FTDI_SIO_RI_MASK)
|
|
msr |= SER_RI;
|
|
if (ftdi_msr & FTDI_SIO_RLSD_MASK)
|
|
msr |= SER_DCD;
|
|
|
|
if ((sc->sc_msr != msr) ||
|
|
((sc->sc_lsr & FTDI_LSR_MASK) != (lsr & FTDI_LSR_MASK))) {
|
|
DPRINTF("status change msr=0x%02x (0x%02x) "
|
|
"lsr=0x%02x (0x%02x)\n", msr, sc->sc_msr,
|
|
lsr, sc->sc_lsr);
|
|
|
|
sc->sc_msr = msr;
|
|
sc->sc_lsr = lsr;
|
|
|
|
ucom_status_change(&sc->sc_ucom);
|
|
}
|
|
actlen -= 2;
|
|
|
|
if (actlen > 0) {
|
|
ucom_put_data(&sc->sc_ucom, pc, 2, 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
|
|
uftdi_cfg_set_dtr(struct ucom_softc *ucom, uint8_t onoff)
|
|
{
|
|
struct uftdi_softc *sc = ucom->sc_parent;
|
|
uint16_t wIndex = ucom->sc_portno;
|
|
uint16_t wValue;
|
|
struct usb_device_request req;
|
|
|
|
wValue = onoff ? FTDI_SIO_SET_DTR_HIGH : FTDI_SIO_SET_DTR_LOW;
|
|
|
|
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
|
|
req.bRequest = FTDI_SIO_MODEM_CTRL;
|
|
USETW(req.wValue, wValue);
|
|
USETW(req.wIndex, wIndex);
|
|
USETW(req.wLength, 0);
|
|
ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
|
|
&req, NULL, 0, 1000);
|
|
}
|
|
|
|
static void
|
|
uftdi_cfg_set_rts(struct ucom_softc *ucom, uint8_t onoff)
|
|
{
|
|
struct uftdi_softc *sc = ucom->sc_parent;
|
|
uint16_t wIndex = ucom->sc_portno;
|
|
uint16_t wValue;
|
|
struct usb_device_request req;
|
|
|
|
wValue = onoff ? FTDI_SIO_SET_RTS_HIGH : FTDI_SIO_SET_RTS_LOW;
|
|
|
|
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
|
|
req.bRequest = FTDI_SIO_MODEM_CTRL;
|
|
USETW(req.wValue, wValue);
|
|
USETW(req.wIndex, wIndex);
|
|
USETW(req.wLength, 0);
|
|
ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
|
|
&req, NULL, 0, 1000);
|
|
}
|
|
|
|
static void
|
|
uftdi_cfg_set_break(struct ucom_softc *ucom, uint8_t onoff)
|
|
{
|
|
struct uftdi_softc *sc = ucom->sc_parent;
|
|
uint16_t wIndex = ucom->sc_portno;
|
|
uint16_t wValue;
|
|
struct usb_device_request req;
|
|
|
|
if (onoff) {
|
|
sc->sc_last_lcr |= FTDI_SIO_SET_BREAK;
|
|
} else {
|
|
sc->sc_last_lcr &= ~FTDI_SIO_SET_BREAK;
|
|
}
|
|
|
|
wValue = sc->sc_last_lcr;
|
|
|
|
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
|
|
req.bRequest = FTDI_SIO_SET_DATA;
|
|
USETW(req.wValue, wValue);
|
|
USETW(req.wIndex, wIndex);
|
|
USETW(req.wLength, 0);
|
|
ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
|
|
&req, NULL, 0, 1000);
|
|
}
|
|
|
|
static int
|
|
uftdi_set_parm_soft(struct termios *t,
|
|
struct uftdi_param_config *cfg, uint8_t type)
|
|
{
|
|
bzero(cfg, sizeof(*cfg));
|
|
|
|
switch (type) {
|
|
case UFTDI_TYPE_SIO:
|
|
switch (t->c_ospeed) {
|
|
case 300:
|
|
cfg->rate = ftdi_sio_b300;
|
|
break;
|
|
case 600:
|
|
cfg->rate = ftdi_sio_b600;
|
|
break;
|
|
case 1200:
|
|
cfg->rate = ftdi_sio_b1200;
|
|
break;
|
|
case 2400:
|
|
cfg->rate = ftdi_sio_b2400;
|
|
break;
|
|
case 4800:
|
|
cfg->rate = ftdi_sio_b4800;
|
|
break;
|
|
case 9600:
|
|
cfg->rate = ftdi_sio_b9600;
|
|
break;
|
|
case 19200:
|
|
cfg->rate = ftdi_sio_b19200;
|
|
break;
|
|
case 38400:
|
|
cfg->rate = ftdi_sio_b38400;
|
|
break;
|
|
case 57600:
|
|
cfg->rate = ftdi_sio_b57600;
|
|
break;
|
|
case 115200:
|
|
cfg->rate = ftdi_sio_b115200;
|
|
break;
|
|
default:
|
|
return (EINVAL);
|
|
}
|
|
break;
|
|
|
|
case UFTDI_TYPE_8U232AM:
|
|
if (uftdi_8u232am_getrate(t->c_ospeed, &cfg->rate)) {
|
|
return (EINVAL);
|
|
}
|
|
break;
|
|
}
|
|
|
|
if (t->c_cflag & CSTOPB)
|
|
cfg->lcr = FTDI_SIO_SET_DATA_STOP_BITS_2;
|
|
else
|
|
cfg->lcr = FTDI_SIO_SET_DATA_STOP_BITS_1;
|
|
|
|
if (t->c_cflag & PARENB) {
|
|
if (t->c_cflag & PARODD) {
|
|
cfg->lcr |= FTDI_SIO_SET_DATA_PARITY_ODD;
|
|
} else {
|
|
cfg->lcr |= FTDI_SIO_SET_DATA_PARITY_EVEN;
|
|
}
|
|
} else {
|
|
cfg->lcr |= FTDI_SIO_SET_DATA_PARITY_NONE;
|
|
}
|
|
|
|
switch (t->c_cflag & CSIZE) {
|
|
case CS5:
|
|
cfg->lcr |= FTDI_SIO_SET_DATA_BITS(5);
|
|
break;
|
|
|
|
case CS6:
|
|
cfg->lcr |= FTDI_SIO_SET_DATA_BITS(6);
|
|
break;
|
|
|
|
case CS7:
|
|
cfg->lcr |= FTDI_SIO_SET_DATA_BITS(7);
|
|
break;
|
|
|
|
case CS8:
|
|
cfg->lcr |= FTDI_SIO_SET_DATA_BITS(8);
|
|
break;
|
|
}
|
|
|
|
if (t->c_cflag & CRTSCTS) {
|
|
cfg->v_flow = FTDI_SIO_RTS_CTS_HS;
|
|
} else if (t->c_iflag & (IXON | IXOFF)) {
|
|
cfg->v_flow = FTDI_SIO_XON_XOFF_HS;
|
|
cfg->v_start = t->c_cc[VSTART];
|
|
cfg->v_stop = t->c_cc[VSTOP];
|
|
} else {
|
|
cfg->v_flow = FTDI_SIO_DISABLE_FLOW_CTRL;
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
uftdi_pre_param(struct ucom_softc *ucom, struct termios *t)
|
|
{
|
|
struct uftdi_softc *sc = ucom->sc_parent;
|
|
struct uftdi_param_config cfg;
|
|
|
|
DPRINTF("\n");
|
|
|
|
return (uftdi_set_parm_soft(t, &cfg, sc->sc_type));
|
|
}
|
|
|
|
static void
|
|
uftdi_cfg_param(struct ucom_softc *ucom, struct termios *t)
|
|
{
|
|
struct uftdi_softc *sc = ucom->sc_parent;
|
|
uint16_t wIndex = ucom->sc_portno;
|
|
struct uftdi_param_config cfg;
|
|
struct usb_device_request req;
|
|
|
|
if (uftdi_set_parm_soft(t, &cfg, sc->sc_type)) {
|
|
/* should not happen */
|
|
return;
|
|
}
|
|
sc->sc_last_lcr = cfg.lcr;
|
|
|
|
DPRINTF("\n");
|
|
|
|
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
|
|
req.bRequest = FTDI_SIO_SET_BAUD_RATE;
|
|
USETW(req.wValue, cfg.rate);
|
|
USETW(req.wIndex, wIndex);
|
|
USETW(req.wLength, 0);
|
|
ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
|
|
&req, NULL, 0, 1000);
|
|
|
|
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
|
|
req.bRequest = FTDI_SIO_SET_DATA;
|
|
USETW(req.wValue, cfg.lcr);
|
|
USETW(req.wIndex, wIndex);
|
|
USETW(req.wLength, 0);
|
|
ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
|
|
&req, NULL, 0, 1000);
|
|
|
|
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
|
|
req.bRequest = FTDI_SIO_SET_FLOW_CTRL;
|
|
USETW2(req.wValue, cfg.v_stop, cfg.v_start);
|
|
USETW2(req.wIndex, cfg.v_flow, wIndex);
|
|
USETW(req.wLength, 0);
|
|
ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
|
|
&req, NULL, 0, 1000);
|
|
}
|
|
|
|
static void
|
|
uftdi_cfg_get_status(struct ucom_softc *ucom, uint8_t *lsr, uint8_t *msr)
|
|
{
|
|
struct uftdi_softc *sc = ucom->sc_parent;
|
|
|
|
DPRINTF("msr=0x%02x lsr=0x%02x\n",
|
|
sc->sc_msr, sc->sc_lsr);
|
|
|
|
*msr = sc->sc_msr;
|
|
*lsr = sc->sc_lsr;
|
|
}
|
|
|
|
static void
|
|
uftdi_start_read(struct ucom_softc *ucom)
|
|
{
|
|
struct uftdi_softc *sc = ucom->sc_parent;
|
|
|
|
usbd_transfer_start(sc->sc_xfer[UFTDI_BULK_DT_RD]);
|
|
}
|
|
|
|
static void
|
|
uftdi_stop_read(struct ucom_softc *ucom)
|
|
{
|
|
struct uftdi_softc *sc = ucom->sc_parent;
|
|
|
|
usbd_transfer_stop(sc->sc_xfer[UFTDI_BULK_DT_RD]);
|
|
}
|
|
|
|
static void
|
|
uftdi_start_write(struct ucom_softc *ucom)
|
|
{
|
|
struct uftdi_softc *sc = ucom->sc_parent;
|
|
|
|
usbd_transfer_start(sc->sc_xfer[UFTDI_BULK_DT_WR]);
|
|
}
|
|
|
|
static void
|
|
uftdi_stop_write(struct ucom_softc *ucom)
|
|
{
|
|
struct uftdi_softc *sc = ucom->sc_parent;
|
|
|
|
usbd_transfer_stop(sc->sc_xfer[UFTDI_BULK_DT_WR]);
|
|
}
|
|
|
|
/*------------------------------------------------------------------------*
|
|
* uftdi_8u232am_getrate
|
|
*
|
|
* Return values:
|
|
* 0: Success
|
|
* Else: Failure
|
|
*------------------------------------------------------------------------*/
|
|
static uint8_t
|
|
uftdi_8u232am_getrate(uint32_t speed, uint16_t *rate)
|
|
{
|
|
/* Table of the nearest even powers-of-2 for values 0..15. */
|
|
static const uint8_t roundoff[16] = {
|
|
0, 2, 2, 4, 4, 4, 8, 8,
|
|
8, 8, 8, 8, 16, 16, 16, 16,
|
|
};
|
|
uint32_t d;
|
|
uint32_t freq;
|
|
uint16_t result;
|
|
|
|
if ((speed < 178) || (speed > ((3000000 * 100) / 97)))
|
|
return (1); /* prevent numerical overflow */
|
|
|
|
/* Special cases for 2M and 3M. */
|
|
if ((speed >= ((3000000 * 100) / 103)) &&
|
|
(speed <= ((3000000 * 100) / 97))) {
|
|
result = 0;
|
|
goto done;
|
|
}
|
|
if ((speed >= ((2000000 * 100) / 103)) &&
|
|
(speed <= ((2000000 * 100) / 97))) {
|
|
result = 1;
|
|
goto done;
|
|
}
|
|
d = (FTDI_8U232AM_FREQ << 4) / speed;
|
|
d = (d & ~15) + roundoff[d & 15];
|
|
|
|
if (d < FTDI_8U232AM_MIN_DIV)
|
|
d = FTDI_8U232AM_MIN_DIV;
|
|
else if (d > FTDI_8U232AM_MAX_DIV)
|
|
d = FTDI_8U232AM_MAX_DIV;
|
|
|
|
/*
|
|
* Calculate the frequency needed for "d" to exactly divide down to
|
|
* our target "speed", and check that the actual frequency is within
|
|
* 3% of this.
|
|
*/
|
|
freq = (speed * d);
|
|
if ((freq < ((FTDI_8U232AM_FREQ * 1600ULL) / 103)) ||
|
|
(freq > ((FTDI_8U232AM_FREQ * 1600ULL) / 97)))
|
|
return (1);
|
|
|
|
/*
|
|
* Pack the divisor into the resultant value. The lower 14-bits
|
|
* hold the integral part, while the upper 2 bits encode the
|
|
* fractional component: either 0, 0.5, 0.25, or 0.125.
|
|
*/
|
|
result = (d >> 4);
|
|
if (d & 8)
|
|
result |= 0x4000;
|
|
else if (d & 4)
|
|
result |= 0x8000;
|
|
else if (d & 2)
|
|
result |= 0xc000;
|
|
|
|
done:
|
|
*rate = result;
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
uftdi_poll(struct ucom_softc *ucom)
|
|
{
|
|
struct uftdi_softc *sc = ucom->sc_parent;
|
|
usbd_transfer_poll(sc->sc_xfer, UFTDI_N_TRANSFER);
|
|
}
|