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freebsd-dev/sys/dev/usb/serial/uplcom.c
Pedro F. Giffuni 718cf2ccb9 sys/dev: further adoption of SPDX licensing ID tags. 
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
2017-11-27 14:52:40 +00:00

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/* $NetBSD: uplcom.c,v 1.21 2001/11/13 06:24:56 lukem Exp $ */
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD AND BSD-2-Clause-NetBSD
*
* Copyright (c) 2001-2003, 2005 Shunsuke Akiyama <akiyama@jp.FreeBSD.org>.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*-
* Copyright (c) 2001 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Ichiro FUKUHARA (ichiro@ichiro.org).
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* This driver supports several USB-to-RS232 serial adapters driven by
* Prolific PL-2303, PL-2303X and probably PL-2303HX USB-to-RS232
* bridge chip. The adapters are sold under many different brand
* names.
*
* Datasheets are available at Prolific www site at
* http://www.prolific.com.tw. The datasheets don't contain full
* programming information for the chip.
*
* PL-2303HX is probably programmed the same as PL-2303X.
*
* There are several differences between PL-2303 and PL-2303(H)X.
* PL-2303(H)X can do higher bitrate in bulk mode, has _probably_
* different command for controlling CRTSCTS and needs special
* sequence of commands for initialization which aren't also
* documented in the datasheet.
*/
#include <sys/stdint.h>
#include <sys/stddef.h>
#include <sys/param.h>
#include <sys/queue.h>
#include <sys/types.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <sys/module.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/condvar.h>
#include <sys/sysctl.h>
#include <sys/sx.h>
#include <sys/unistd.h>
#include <sys/callout.h>
#include <sys/malloc.h>
#include <sys/priv.h>
#include <dev/usb/usb.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usbdi_util.h>
#include <dev/usb/usb_cdc.h>
#include "usbdevs.h"
#define USB_DEBUG_VAR uplcom_debug
#include <dev/usb/usb_debug.h>
#include <dev/usb/usb_process.h>
#include <dev/usb/serial/usb_serial.h>
#ifdef USB_DEBUG
static int uplcom_debug = 0;
static SYSCTL_NODE(_hw_usb, OID_AUTO, uplcom, CTLFLAG_RW, 0, "USB uplcom");
SYSCTL_INT(_hw_usb_uplcom, OID_AUTO, debug, CTLFLAG_RWTUN,
&uplcom_debug, 0, "Debug level");
#endif
#define UPLCOM_MODVER 1 /* module version */
#define UPLCOM_CONFIG_INDEX 0
#define UPLCOM_IFACE_INDEX 0
#define UPLCOM_SECOND_IFACE_INDEX 1
#ifndef UPLCOM_INTR_INTERVAL
#define UPLCOM_INTR_INTERVAL 0 /* default */
#endif
#define UPLCOM_BULK_BUF_SIZE 1024 /* bytes */
#define UPLCOM_SET_REQUEST 0x01
#define UPLCOM_SET_CRTSCTS 0x41
#define UPLCOM_SET_CRTSCTS_PL2303X 0x61
#define RSAQ_STATUS_CTS 0x80
#define RSAQ_STATUS_DSR 0x02
#define RSAQ_STATUS_DCD 0x01
#define TYPE_PL2303 0
#define TYPE_PL2303HX 1
enum {
UPLCOM_BULK_DT_WR,
UPLCOM_BULK_DT_RD,
UPLCOM_INTR_DT_RD,
UPLCOM_N_TRANSFER,
};
struct uplcom_softc {
struct ucom_super_softc sc_super_ucom;
struct ucom_softc sc_ucom;
struct usb_xfer *sc_xfer[UPLCOM_N_TRANSFER];
struct usb_device *sc_udev;
struct mtx sc_mtx;
uint16_t sc_line;
uint8_t sc_lsr; /* local status register */
uint8_t sc_msr; /* uplcom status register */
uint8_t sc_chiptype; /* type of chip */
uint8_t sc_ctrl_iface_no;
uint8_t sc_data_iface_no;
uint8_t sc_iface_index[2];
};
/* prototypes */
static usb_error_t uplcom_reset(struct uplcom_softc *, struct usb_device *);
static usb_error_t uplcom_pl2303_do(struct usb_device *, uint8_t, uint8_t,
uint16_t, uint16_t, uint16_t);
static int uplcom_pl2303_init(struct usb_device *, uint8_t);
static void uplcom_free(struct ucom_softc *);
static void uplcom_cfg_set_dtr(struct ucom_softc *, uint8_t);
static void uplcom_cfg_set_rts(struct ucom_softc *, uint8_t);
static void uplcom_cfg_set_break(struct ucom_softc *, uint8_t);
static int uplcom_pre_param(struct ucom_softc *, struct termios *);
static void uplcom_cfg_param(struct ucom_softc *, struct termios *);
static void uplcom_start_read(struct ucom_softc *);
static void uplcom_stop_read(struct ucom_softc *);
static void uplcom_start_write(struct ucom_softc *);
static void uplcom_stop_write(struct ucom_softc *);
static void uplcom_cfg_get_status(struct ucom_softc *, uint8_t *,
uint8_t *);
static void uplcom_poll(struct ucom_softc *ucom);
static device_probe_t uplcom_probe;
static device_attach_t uplcom_attach;
static device_detach_t uplcom_detach;
static void uplcom_free_softc(struct uplcom_softc *);
static usb_callback_t uplcom_intr_callback;
static usb_callback_t uplcom_write_callback;
static usb_callback_t uplcom_read_callback;
static const struct usb_config uplcom_config_data[UPLCOM_N_TRANSFER] = {
[UPLCOM_BULK_DT_WR] = {
.type = UE_BULK,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_OUT,
.bufsize = UPLCOM_BULK_BUF_SIZE,
.flags = {.pipe_bof = 1,.force_short_xfer = 1,},
.callback = &uplcom_write_callback,
.if_index = 0,
},
[UPLCOM_BULK_DT_RD] = {
.type = UE_BULK,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_IN,
.bufsize = UPLCOM_BULK_BUF_SIZE,
.flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
.callback = &uplcom_read_callback,
.if_index = 0,
},
[UPLCOM_INTR_DT_RD] = {
.type = UE_INTERRUPT,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_IN,
.flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
.bufsize = 0, /* use wMaxPacketSize */
.callback = &uplcom_intr_callback,
.if_index = 1,
},
};
static struct ucom_callback uplcom_callback = {
.ucom_cfg_get_status = &uplcom_cfg_get_status,
.ucom_cfg_set_dtr = &uplcom_cfg_set_dtr,
.ucom_cfg_set_rts = &uplcom_cfg_set_rts,
.ucom_cfg_set_break = &uplcom_cfg_set_break,
.ucom_cfg_param = &uplcom_cfg_param,
.ucom_pre_param = &uplcom_pre_param,
.ucom_start_read = &uplcom_start_read,
.ucom_stop_read = &uplcom_stop_read,
.ucom_start_write = &uplcom_start_write,
.ucom_stop_write = &uplcom_stop_write,
.ucom_poll = &uplcom_poll,
.ucom_free = &uplcom_free,
};
#define UPLCOM_DEV(v,p) \
{ USB_VENDOR(USB_VENDOR_##v), USB_PRODUCT(USB_PRODUCT_##v##_##p) }
static const STRUCT_USB_HOST_ID uplcom_devs[] = {
UPLCOM_DEV(ACERP, S81), /* BenQ S81 phone */
UPLCOM_DEV(ADLINK, ND6530), /* ADLINK ND-6530 USB-Serial */
UPLCOM_DEV(ALCATEL, OT535), /* Alcatel One Touch 535/735 */
UPLCOM_DEV(ALCOR, AU9720), /* Alcor AU9720 USB 2.0-RS232 */
UPLCOM_DEV(ANCHOR, SERIAL), /* Anchor Serial adapter */
UPLCOM_DEV(ATEN, UC232A), /* PLANEX USB-RS232 URS-03 */
UPLCOM_DEV(BELKIN, F5U257), /* Belkin F5U257 USB to Serial */
UPLCOM_DEV(COREGA, CGUSBRS232R), /* Corega CG-USBRS232R */
UPLCOM_DEV(EPSON, CRESSI_EDY), /* Cressi Edy diving computer */
UPLCOM_DEV(EPSON, N2ITION3), /* Zeagle N2iTion3 diving computer */
UPLCOM_DEV(ELECOM, UCSGT), /* ELECOM UC-SGT Serial Adapter */
UPLCOM_DEV(ELECOM, UCSGT0), /* ELECOM UC-SGT Serial Adapter */
UPLCOM_DEV(HAL, IMR001), /* HAL Corporation Crossam2+USB */
UPLCOM_DEV(HP, LD220), /* HP LD220 POS Display */
UPLCOM_DEV(IODATA, USBRSAQ), /* I/O DATA USB-RSAQ */
UPLCOM_DEV(IODATA, USBRSAQ5), /* I/O DATA USB-RSAQ5 */
UPLCOM_DEV(ITEGNO, WM1080A), /* iTegno WM1080A GSM/GFPRS modem */
UPLCOM_DEV(ITEGNO, WM2080A), /* iTegno WM2080A CDMA modem */
UPLCOM_DEV(LEADTEK, 9531), /* Leadtek 9531 GPS */
UPLCOM_DEV(MICROSOFT, 700WX), /* Microsoft Palm 700WX */
UPLCOM_DEV(MOBILEACTION, MA620), /* Mobile Action MA-620 Infrared Adapter */
UPLCOM_DEV(NETINDEX, WS002IN), /* Willcom W-S002IN */
UPLCOM_DEV(NOKIA2, CA42), /* Nokia CA-42 cable */
UPLCOM_DEV(OTI, DKU5), /* OTI DKU-5 cable */
UPLCOM_DEV(PANASONIC, TYTP50P6S), /* Panasonic TY-TP50P6-S flat screen */
UPLCOM_DEV(PLX, CA42), /* PLX CA-42 clone cable */
UPLCOM_DEV(PROLIFIC, ALLTRONIX_GPRS), /* Alltronix ACM003U00 modem */
UPLCOM_DEV(PROLIFIC, ALDIGA_AL11U), /* AlDiga AL-11U modem */
UPLCOM_DEV(PROLIFIC, DCU11), /* DCU-11 Phone Cable */
UPLCOM_DEV(PROLIFIC, HCR331), /* HCR331 Card Reader */
UPLCOM_DEV(PROLIFIC, MICROMAX_610U), /* Micromax 610U modem */
UPLCOM_DEV(PROLIFIC, MOTOROLA), /* Motorola cable */
UPLCOM_DEV(PROLIFIC, PHAROS), /* Prolific Pharos */
UPLCOM_DEV(PROLIFIC, PL2303), /* Generic adapter */
UPLCOM_DEV(PROLIFIC, RSAQ2), /* I/O DATA USB-RSAQ2 */
UPLCOM_DEV(PROLIFIC, RSAQ3), /* I/O DATA USB-RSAQ3 */
UPLCOM_DEV(PROLIFIC, UIC_MSR206), /* UIC MSR206 Card Reader */
UPLCOM_DEV(PROLIFIC2, PL2303), /* Prolific adapter */
UPLCOM_DEV(RADIOSHACK, USBCABLE), /* Radio Shack USB Adapter */
UPLCOM_DEV(RATOC, REXUSB60), /* RATOC REX-USB60 */
UPLCOM_DEV(SAGEM, USBSERIAL), /* Sagem USB-Serial Controller */
UPLCOM_DEV(SAMSUNG, I330), /* Samsung I330 phone cradle */
UPLCOM_DEV(SANWA, KB_USB2), /* Sanwa KB-USB2 Multimeter cable */
UPLCOM_DEV(SIEMENS3, EF81), /* Siemens EF81 */
UPLCOM_DEV(SIEMENS3, SX1), /* Siemens SX1 */
UPLCOM_DEV(SIEMENS3, X65), /* Siemens X65 */
UPLCOM_DEV(SIEMENS3, X75), /* Siemens X75 */
UPLCOM_DEV(SITECOM, SERIAL), /* Sitecom USB to Serial */
UPLCOM_DEV(SMART, PL2303), /* SMART Technologies USB to Serial */
UPLCOM_DEV(SONY, QN3), /* Sony QN3 phone cable */
UPLCOM_DEV(SONYERICSSON, DATAPILOT), /* Sony Ericsson Datapilot */
UPLCOM_DEV(SONYERICSSON, DCU10), /* Sony Ericsson DCU-10 Cable */
UPLCOM_DEV(SOURCENEXT, KEIKAI8), /* SOURCENEXT KeikaiDenwa 8 */
UPLCOM_DEV(SOURCENEXT, KEIKAI8_CHG), /* SOURCENEXT KeikaiDenwa 8 with charger */
UPLCOM_DEV(SPEEDDRAGON, MS3303H), /* Speed Dragon USB-Serial */
UPLCOM_DEV(SYNTECH, CPT8001C), /* Syntech CPT-8001C Barcode scanner */
UPLCOM_DEV(TDK, UHA6400), /* TDK USB-PHS Adapter UHA6400 */
UPLCOM_DEV(TDK, UPA9664), /* TDK USB-PHS Adapter UPA9664 */
UPLCOM_DEV(TRIPPLITE, U209), /* Tripp-Lite U209-000-R USB to Serial */
UPLCOM_DEV(YCCABLE, PL2303), /* YC Cable USB-Serial */
};
#undef UPLCOM_DEV
static device_method_t uplcom_methods[] = {
DEVMETHOD(device_probe, uplcom_probe),
DEVMETHOD(device_attach, uplcom_attach),
DEVMETHOD(device_detach, uplcom_detach),
DEVMETHOD_END
};
static devclass_t uplcom_devclass;
static driver_t uplcom_driver = {
.name = "uplcom",
.methods = uplcom_methods,
.size = sizeof(struct uplcom_softc),
};
DRIVER_MODULE(uplcom, uhub, uplcom_driver, uplcom_devclass, NULL, 0);
MODULE_DEPEND(uplcom, ucom, 1, 1, 1);
MODULE_DEPEND(uplcom, usb, 1, 1, 1);
MODULE_VERSION(uplcom, UPLCOM_MODVER);
USB_PNP_HOST_INFO(uplcom_devs);
static int
uplcom_probe(device_t dev)
{
struct usb_attach_arg *uaa = device_get_ivars(dev);
DPRINTFN(11, "\n");
if (uaa->usb_mode != USB_MODE_HOST) {
return (ENXIO);
}
if (uaa->info.bConfigIndex != UPLCOM_CONFIG_INDEX) {
return (ENXIO);
}
if (uaa->info.bIfaceIndex != UPLCOM_IFACE_INDEX) {
return (ENXIO);
}
return (usbd_lookup_id_by_uaa(uplcom_devs, sizeof(uplcom_devs), uaa));
}
static int
uplcom_attach(device_t dev)
{
struct usb_attach_arg *uaa = device_get_ivars(dev);
struct uplcom_softc *sc = device_get_softc(dev);
struct usb_interface *iface;
struct usb_interface_descriptor *id;
struct usb_device_descriptor *dd;
int error;
DPRINTFN(11, "\n");
device_set_usb_desc(dev);
mtx_init(&sc->sc_mtx, "uplcom", NULL, MTX_DEF);
ucom_ref(&sc->sc_super_ucom);
DPRINTF("sc = %p\n", sc);
sc->sc_udev = uaa->device;
/* Determine the chip type. This algorithm is taken from Linux. */
dd = usbd_get_device_descriptor(sc->sc_udev);
if (dd->bDeviceClass == 0x02)
sc->sc_chiptype = TYPE_PL2303;
else if (dd->bMaxPacketSize == 0x40)
sc->sc_chiptype = TYPE_PL2303HX;
else
sc->sc_chiptype = TYPE_PL2303;
DPRINTF("chiptype: %s\n",
(sc->sc_chiptype == TYPE_PL2303HX) ?
"2303X" : "2303");
/*
* USB-RSAQ1 has two interface
*
* USB-RSAQ1 | USB-RSAQ2
* -----------------+-----------------
* Interface 0 |Interface 0
* Interrupt(0x81) | Interrupt(0x81)
* -----------------+ BulkIN(0x02)
* Interface 1 | BulkOUT(0x83)
* BulkIN(0x02) |
* BulkOUT(0x83) |
*/
sc->sc_ctrl_iface_no = uaa->info.bIfaceNum;
sc->sc_iface_index[1] = UPLCOM_IFACE_INDEX;
iface = usbd_get_iface(uaa->device, UPLCOM_SECOND_IFACE_INDEX);
if (iface) {
id = usbd_get_interface_descriptor(iface);
if (id == NULL) {
device_printf(dev, "no interface descriptor (2)\n");
goto detach;
}
sc->sc_data_iface_no = id->bInterfaceNumber;
sc->sc_iface_index[0] = UPLCOM_SECOND_IFACE_INDEX;
usbd_set_parent_iface(uaa->device,
UPLCOM_SECOND_IFACE_INDEX, uaa->info.bIfaceIndex);
} else {
sc->sc_data_iface_no = sc->sc_ctrl_iface_no;
sc->sc_iface_index[0] = UPLCOM_IFACE_INDEX;
}
error = usbd_transfer_setup(uaa->device,
sc->sc_iface_index, sc->sc_xfer, uplcom_config_data,
UPLCOM_N_TRANSFER, sc, &sc->sc_mtx);
if (error) {
DPRINTF("one or more missing USB endpoints, "
"error=%s\n", usbd_errstr(error));
goto detach;
}
error = uplcom_reset(sc, uaa->device);
if (error) {
device_printf(dev, "reset failed, error=%s\n",
usbd_errstr(error));
goto detach;
}
if (sc->sc_chiptype != TYPE_PL2303HX) {
/* HX variants seem to lock up after a clear stall request. */
mtx_lock(&sc->sc_mtx);
usbd_xfer_set_stall(sc->sc_xfer[UPLCOM_BULK_DT_WR]);
usbd_xfer_set_stall(sc->sc_xfer[UPLCOM_BULK_DT_RD]);
mtx_unlock(&sc->sc_mtx);
} else {
if (uplcom_pl2303_do(sc->sc_udev, UT_WRITE_VENDOR_DEVICE,
UPLCOM_SET_REQUEST, 8, 0, 0) ||
uplcom_pl2303_do(sc->sc_udev, UT_WRITE_VENDOR_DEVICE,
UPLCOM_SET_REQUEST, 9, 0, 0)) {
goto detach;
}
}
error = ucom_attach(&sc->sc_super_ucom, &sc->sc_ucom, 1, sc,
&uplcom_callback, &sc->sc_mtx);
if (error) {
goto detach;
}
/*
* do the initialization during attach so that the system does not
* sleep during open:
*/
if (uplcom_pl2303_init(uaa->device, sc->sc_chiptype)) {
device_printf(dev, "init failed\n");
goto detach;
}
ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev);
return (0);
detach:
uplcom_detach(dev);
return (ENXIO);
}
static int
uplcom_detach(device_t dev)
{
struct uplcom_softc *sc = device_get_softc(dev);
DPRINTF("sc=%p\n", sc);
ucom_detach(&sc->sc_super_ucom, &sc->sc_ucom);
usbd_transfer_unsetup(sc->sc_xfer, UPLCOM_N_TRANSFER);
device_claim_softc(dev);
uplcom_free_softc(sc);
return (0);
}
UCOM_UNLOAD_DRAIN(uplcom);
static void
uplcom_free_softc(struct uplcom_softc *sc)
{
if (ucom_unref(&sc->sc_super_ucom)) {
mtx_destroy(&sc->sc_mtx);
device_free_softc(sc);
}
}
static void
uplcom_free(struct ucom_softc *ucom)
{
uplcom_free_softc(ucom->sc_parent);
}
static usb_error_t
uplcom_reset(struct uplcom_softc *sc, struct usb_device *udev)
{
struct usb_device_request req;
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
req.bRequest = UPLCOM_SET_REQUEST;
USETW(req.wValue, 0);
req.wIndex[0] = sc->sc_data_iface_no;
req.wIndex[1] = 0;
USETW(req.wLength, 0);
return (usbd_do_request(udev, NULL, &req, NULL));
}
static usb_error_t
uplcom_pl2303_do(struct usb_device *udev, uint8_t req_type, uint8_t request,
uint16_t value, uint16_t index, uint16_t length)
{
struct usb_device_request req;
usb_error_t err;
uint8_t buf[4];
req.bmRequestType = req_type;
req.bRequest = request;
USETW(req.wValue, value);
USETW(req.wIndex, index);
USETW(req.wLength, length);
err = usbd_do_request(udev, NULL, &req, buf);
if (err) {
DPRINTF("error=%s\n", usbd_errstr(err));
return (1);
}
return (0);
}
static int
uplcom_pl2303_init(struct usb_device *udev, uint8_t chiptype)
{
int err;
if (uplcom_pl2303_do(udev, UT_READ_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 0x8484, 0, 1)
|| uplcom_pl2303_do(udev, UT_WRITE_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 0x0404, 0, 0)
|| uplcom_pl2303_do(udev, UT_READ_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 0x8484, 0, 1)
|| uplcom_pl2303_do(udev, UT_READ_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 0x8383, 0, 1)
|| uplcom_pl2303_do(udev, UT_READ_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 0x8484, 0, 1)
|| uplcom_pl2303_do(udev, UT_WRITE_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 0x0404, 1, 0)
|| uplcom_pl2303_do(udev, UT_READ_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 0x8484, 0, 1)
|| uplcom_pl2303_do(udev, UT_READ_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 0x8383, 0, 1)
|| uplcom_pl2303_do(udev, UT_WRITE_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 0, 1, 0)
|| uplcom_pl2303_do(udev, UT_WRITE_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 1, 0, 0))
return (EIO);
if (chiptype == TYPE_PL2303HX)
err = uplcom_pl2303_do(udev, UT_WRITE_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 2, 0x44, 0);
else
err = uplcom_pl2303_do(udev, UT_WRITE_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 2, 0x24, 0);
if (err)
return (EIO);
return (0);
}
static void
uplcom_cfg_set_dtr(struct ucom_softc *ucom, uint8_t onoff)
{
struct uplcom_softc *sc = ucom->sc_parent;
struct usb_device_request req;
DPRINTF("onoff = %d\n", onoff);
if (onoff)
sc->sc_line |= UCDC_LINE_DTR;
else
sc->sc_line &= ~UCDC_LINE_DTR;
req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
req.bRequest = UCDC_SET_CONTROL_LINE_STATE;
USETW(req.wValue, sc->sc_line);
req.wIndex[0] = sc->sc_data_iface_no;
req.wIndex[1] = 0;
USETW(req.wLength, 0);
ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
&req, NULL, 0, 1000);
}
static void
uplcom_cfg_set_rts(struct ucom_softc *ucom, uint8_t onoff)
{
struct uplcom_softc *sc = ucom->sc_parent;
struct usb_device_request req;
DPRINTF("onoff = %d\n", onoff);
if (onoff)
sc->sc_line |= UCDC_LINE_RTS;
else
sc->sc_line &= ~UCDC_LINE_RTS;
req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
req.bRequest = UCDC_SET_CONTROL_LINE_STATE;
USETW(req.wValue, sc->sc_line);
req.wIndex[0] = sc->sc_data_iface_no;
req.wIndex[1] = 0;
USETW(req.wLength, 0);
ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
&req, NULL, 0, 1000);
}
static void
uplcom_cfg_set_break(struct ucom_softc *ucom, uint8_t onoff)
{
struct uplcom_softc *sc = ucom->sc_parent;
struct usb_device_request req;
uint16_t temp;
DPRINTF("onoff = %d\n", onoff);
temp = (onoff ? UCDC_BREAK_ON : UCDC_BREAK_OFF);
req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
req.bRequest = UCDC_SEND_BREAK;
USETW(req.wValue, temp);
req.wIndex[0] = sc->sc_data_iface_no;
req.wIndex[1] = 0;
USETW(req.wLength, 0);
ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
&req, NULL, 0, 1000);
}
static const uint32_t uplcom_rates[] = {
75, 150, 300, 600, 1200, 1800, 2400, 3600, 4800, 7200, 9600, 14400,
19200, 28800, 38400, 57600, 115200,
/*
* Higher speeds are probably possible. PL2303X supports up to
* 6Mb and can set any rate
*/
230400, 460800, 614400, 921600, 1228800
};
#define N_UPLCOM_RATES nitems(uplcom_rates)
static int
uplcom_pre_param(struct ucom_softc *ucom, struct termios *t)
{
struct uplcom_softc *sc = ucom->sc_parent;
uint8_t i;
DPRINTF("\n");
/**
* Check requested baud rate.
*
* The PL2303 can only set specific baud rates, up to 1228800 baud.
* The PL2303X can set any baud rate up to 6Mb.
* The PL2303HX rev. D can set any baud rate up to 12Mb.
*
* XXX: We currently cannot identify the PL2303HX rev. D, so treat
* it the same as the PL2303X.
*/
if (sc->sc_chiptype != TYPE_PL2303HX) {
for (i = 0; i < N_UPLCOM_RATES; i++) {
if (uplcom_rates[i] == t->c_ospeed)
return (0);
}
} else {
if (t->c_ospeed <= 6000000)
return (0);
}
DPRINTF("uplcom_param: bad baud rate (%d)\n", t->c_ospeed);
return (EIO);
}
static void
uplcom_cfg_param(struct ucom_softc *ucom, struct termios *t)
{
struct uplcom_softc *sc = ucom->sc_parent;
struct usb_cdc_line_state ls;
struct usb_device_request req;
DPRINTF("sc = %p\n", sc);
memset(&ls, 0, sizeof(ls));
USETDW(ls.dwDTERate, t->c_ospeed);
if (t->c_cflag & CSTOPB) {
ls.bCharFormat = UCDC_STOP_BIT_2;
} else {
ls.bCharFormat = UCDC_STOP_BIT_1;
}
if (t->c_cflag & PARENB) {
if (t->c_cflag & PARODD) {
ls.bParityType = UCDC_PARITY_ODD;
} else {
ls.bParityType = UCDC_PARITY_EVEN;
}
} else {
ls.bParityType = UCDC_PARITY_NONE;
}
switch (t->c_cflag & CSIZE) {
case CS5:
ls.bDataBits = 5;
break;
case CS6:
ls.bDataBits = 6;
break;
case CS7:
ls.bDataBits = 7;
break;
case CS8:
ls.bDataBits = 8;
break;
}
DPRINTF("rate=%d fmt=%d parity=%d bits=%d\n",
UGETDW(ls.dwDTERate), ls.bCharFormat,
ls.bParityType, ls.bDataBits);
req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
req.bRequest = UCDC_SET_LINE_CODING;
USETW(req.wValue, 0);
req.wIndex[0] = sc->sc_data_iface_no;
req.wIndex[1] = 0;
USETW(req.wLength, UCDC_LINE_STATE_LENGTH);
ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
&req, &ls, 0, 1000);
if (t->c_cflag & CRTSCTS) {
DPRINTF("crtscts = on\n");
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
req.bRequest = UPLCOM_SET_REQUEST;
USETW(req.wValue, 0);
if (sc->sc_chiptype == TYPE_PL2303HX)
USETW(req.wIndex, UPLCOM_SET_CRTSCTS_PL2303X);
else
USETW(req.wIndex, UPLCOM_SET_CRTSCTS);
USETW(req.wLength, 0);
ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
&req, NULL, 0, 1000);
} else {
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
req.bRequest = UPLCOM_SET_REQUEST;
USETW(req.wValue, 0);
USETW(req.wIndex, 0);
USETW(req.wLength, 0);
ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
&req, NULL, 0, 1000);
}
}
static void
uplcom_start_read(struct ucom_softc *ucom)
{
struct uplcom_softc *sc = ucom->sc_parent;
/* start interrupt endpoint */
usbd_transfer_start(sc->sc_xfer[UPLCOM_INTR_DT_RD]);
/* start read endpoint */
usbd_transfer_start(sc->sc_xfer[UPLCOM_BULK_DT_RD]);
}
static void
uplcom_stop_read(struct ucom_softc *ucom)
{
struct uplcom_softc *sc = ucom->sc_parent;
/* stop interrupt endpoint */
usbd_transfer_stop(sc->sc_xfer[UPLCOM_INTR_DT_RD]);
/* stop read endpoint */
usbd_transfer_stop(sc->sc_xfer[UPLCOM_BULK_DT_RD]);
}
static void
uplcom_start_write(struct ucom_softc *ucom)
{
struct uplcom_softc *sc = ucom->sc_parent;
usbd_transfer_start(sc->sc_xfer[UPLCOM_BULK_DT_WR]);
}
static void
uplcom_stop_write(struct ucom_softc *ucom)
{
struct uplcom_softc *sc = ucom->sc_parent;
usbd_transfer_stop(sc->sc_xfer[UPLCOM_BULK_DT_WR]);
}
static void
uplcom_cfg_get_status(struct ucom_softc *ucom, uint8_t *lsr, uint8_t *msr)
{
struct uplcom_softc *sc = ucom->sc_parent;
DPRINTF("\n");
/* XXX Note: sc_lsr is always zero */
*lsr = sc->sc_lsr;
*msr = sc->sc_msr;
}
static void
uplcom_intr_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct uplcom_softc *sc = usbd_xfer_softc(xfer);
struct usb_page_cache *pc;
uint8_t buf[9];
int actlen;
usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
DPRINTF("actlen = %u\n", actlen);
if (actlen >= 9) {
pc = usbd_xfer_get_frame(xfer, 0);
usbd_copy_out(pc, 0, buf, sizeof(buf));
DPRINTF("status = 0x%02x\n", buf[8]);
sc->sc_lsr = 0;
sc->sc_msr = 0;
if (buf[8] & RSAQ_STATUS_CTS) {
sc->sc_msr |= SER_CTS;
}
if (buf[8] & RSAQ_STATUS_DSR) {
sc->sc_msr |= SER_DSR;
}
if (buf[8] & RSAQ_STATUS_DCD) {
sc->sc_msr |= SER_DCD;
}
ucom_status_change(&sc->sc_ucom);
}
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
uplcom_write_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct uplcom_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,
UPLCOM_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
uplcom_read_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct uplcom_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
uplcom_poll(struct ucom_softc *ucom)
{
struct uplcom_softc *sc = ucom->sc_parent;
usbd_transfer_poll(sc->sc_xfer, UPLCOM_N_TRANSFER);
}
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