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freebsd-skq/sys/dev/usb/serial/uplcom.c
Hans Petter Selasky 9efb73396e Fix uplcom clear stall logic for PL2303HX. 
Submitted by:	Mark Johnston
MFC after:	1 week
2012-11-21 22:04:40 +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("$FreeBSD$");
/*-
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* 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_RW,
&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 *, int8_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);
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, int8_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 (sizeof(uplcom_rates)/sizeof(uplcom_rates[0]))
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");
*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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