827 lines
20 KiB
C
827 lines
20 KiB
C
/* $NetBSD: uftdi.c,v 1.13 2002/09/23 05:51:23 simonb Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 2000 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Lennart Augustsson (lennart@augustsson.net).
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
/*
|
|
* NOTE: all function names beginning like "uftdi_cfg_" can only
|
|
* be called from within the config thread function !
|
|
*/
|
|
|
|
/*
|
|
* FTDI FT8U100AX serial adapter driver
|
|
*/
|
|
|
|
#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 "usbdevs.h"
|
|
|
|
#define USB_DEBUG_VAR uftdi_debug
|
|
#include <dev/usb/usb_debug.h>
|
|
#include <dev/usb/usb_process.h>
|
|
|
|
#include <dev/usb/serial/usb_serial.h>
|
|
#include <dev/usb/serial/uftdi_reg.h>
|
|
|
|
#ifdef USB_DEBUG
|
|
static int uftdi_debug = 0;
|
|
|
|
SYSCTL_NODE(_hw_usb, OID_AUTO, uftdi, CTLFLAG_RW, 0, "USB uftdi");
|
|
SYSCTL_INT(_hw_usb_uftdi, OID_AUTO, debug, CTLFLAG_RW,
|
|
&uftdi_debug, 0, "Debug level");
|
|
#endif
|
|
|
|
#define UFTDI_CONFIG_INDEX 0
|
|
#define UFTDI_IFACE_INDEX 0
|
|
|
|
#define UFTDI_OBUFSIZE 64 /* bytes, cannot be increased due to
|
|
* do size encoding */
|
|
|
|
enum {
|
|
UFTDI_BULK_DT_WR,
|
|
UFTDI_BULK_DT_RD,
|
|
UFTDI_N_TRANSFER,
|
|
};
|
|
|
|
struct uftdi_softc {
|
|
struct ucom_super_softc sc_super_ucom;
|
|
struct ucom_softc sc_ucom;
|
|
|
|
struct usb_device *sc_udev;
|
|
struct usb_xfer *sc_xfer[UFTDI_N_TRANSFER];
|
|
device_t sc_dev;
|
|
struct mtx sc_mtx;
|
|
|
|
uint32_t sc_unit;
|
|
enum uftdi_type sc_type;
|
|
|
|
uint16_t sc_last_lcr;
|
|
|
|
uint8_t sc_iface_index;
|
|
uint8_t sc_hdrlen;
|
|
uint8_t sc_msr;
|
|
uint8_t sc_lsr;
|
|
|
|
uint8_t sc_name[16];
|
|
};
|
|
|
|
struct uftdi_param_config {
|
|
uint16_t rate;
|
|
uint16_t lcr;
|
|
uint8_t v_start;
|
|
uint8_t v_stop;
|
|
uint8_t v_flow;
|
|
};
|
|
|
|
/* prototypes */
|
|
|
|
static device_probe_t uftdi_probe;
|
|
static device_attach_t uftdi_attach;
|
|
static device_detach_t uftdi_detach;
|
|
|
|
static usb_callback_t uftdi_write_callback;
|
|
static usb_callback_t uftdi_read_callback;
|
|
|
|
static void uftdi_cfg_open(struct ucom_softc *);
|
|
static void uftdi_cfg_set_dtr(struct ucom_softc *, uint8_t);
|
|
static void uftdi_cfg_set_rts(struct ucom_softc *, uint8_t);
|
|
static void uftdi_cfg_set_break(struct ucom_softc *, uint8_t);
|
|
static int uftdi_set_parm_soft(struct termios *,
|
|
struct uftdi_param_config *, uint8_t);
|
|
static int uftdi_pre_param(struct ucom_softc *, struct termios *);
|
|
static void uftdi_cfg_param(struct ucom_softc *, struct termios *);
|
|
static void uftdi_cfg_get_status(struct ucom_softc *, uint8_t *,
|
|
uint8_t *);
|
|
static void uftdi_start_read(struct ucom_softc *);
|
|
static void uftdi_stop_read(struct ucom_softc *);
|
|
static void uftdi_start_write(struct ucom_softc *);
|
|
static void uftdi_stop_write(struct ucom_softc *);
|
|
static uint8_t uftdi_8u232am_getrate(uint32_t, uint16_t *);
|
|
static void uftdi_poll(struct ucom_softc *ucom);
|
|
|
|
static const struct usb_config uftdi_config[UFTDI_N_TRANSFER] = {
|
|
|
|
[UFTDI_BULK_DT_WR] = {
|
|
.type = UE_BULK,
|
|
.endpoint = UE_ADDR_ANY,
|
|
.direction = UE_DIR_OUT,
|
|
.bufsize = UFTDI_OBUFSIZE,
|
|
.flags = {.pipe_bof = 1,},
|
|
.callback = &uftdi_write_callback,
|
|
},
|
|
|
|
[UFTDI_BULK_DT_RD] = {
|
|
.type = UE_BULK,
|
|
.endpoint = UE_ADDR_ANY,
|
|
.direction = UE_DIR_IN,
|
|
.bufsize = 0, /* use wMaxPacketSize */
|
|
.flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
|
|
.callback = &uftdi_read_callback,
|
|
},
|
|
};
|
|
|
|
static const struct ucom_callback uftdi_callback = {
|
|
.ucom_cfg_get_status = &uftdi_cfg_get_status,
|
|
.ucom_cfg_set_dtr = &uftdi_cfg_set_dtr,
|
|
.ucom_cfg_set_rts = &uftdi_cfg_set_rts,
|
|
.ucom_cfg_set_break = &uftdi_cfg_set_break,
|
|
.ucom_cfg_param = &uftdi_cfg_param,
|
|
.ucom_cfg_open = &uftdi_cfg_open,
|
|
.ucom_pre_param = &uftdi_pre_param,
|
|
.ucom_start_read = &uftdi_start_read,
|
|
.ucom_stop_read = &uftdi_stop_read,
|
|
.ucom_start_write = &uftdi_start_write,
|
|
.ucom_stop_write = &uftdi_stop_write,
|
|
.ucom_poll = &uftdi_poll,
|
|
};
|
|
|
|
static device_method_t uftdi_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, uftdi_probe),
|
|
DEVMETHOD(device_attach, uftdi_attach),
|
|
DEVMETHOD(device_detach, uftdi_detach),
|
|
|
|
{0, 0}
|
|
};
|
|
|
|
static devclass_t uftdi_devclass;
|
|
|
|
static driver_t uftdi_driver = {
|
|
.name = "uftdi",
|
|
.methods = uftdi_methods,
|
|
.size = sizeof(struct uftdi_softc),
|
|
};
|
|
|
|
DRIVER_MODULE(uftdi, uhub, uftdi_driver, uftdi_devclass, NULL, 0);
|
|
MODULE_DEPEND(uftdi, ucom, 1, 1, 1);
|
|
MODULE_DEPEND(uftdi, usb, 1, 1, 1);
|
|
MODULE_VERSION(uftdi, 1);
|
|
|
|
static struct usb_device_id uftdi_devs[] = {
|
|
#define UFTDI_DEV(v,p,t) \
|
|
{ USB_VPI(USB_VENDOR_##v, USB_PRODUCT_##v##_##p, UFTDI_TYPE_##t) }
|
|
UFTDI_DEV(ATMEL, STK541, 8U232AM),
|
|
UFTDI_DEV(DRESDENELEKTRONIK, SENSORTERMINALBOARD, 8U232AM),
|
|
UFTDI_DEV(DRESDENELEKTRONIK, WIRELESSHANDHELDTERMINAL, 8U232AM),
|
|
UFTDI_DEV(FALCOM, TWIST, 8U232AM),
|
|
UFTDI_DEV(FTDI, GAMMASCOUT, 8U232AM),
|
|
UFTDI_DEV(FTDI, SERIAL_8U100AX, SIO),
|
|
UFTDI_DEV(FTDI, SERIAL_2232C, 8U232AM),
|
|
UFTDI_DEV(FTDI, SERIAL_2232D, 8U232AM),
|
|
UFTDI_DEV(FTDI, SERIAL_4232H, 8U232AM),
|
|
UFTDI_DEV(FTDI, SERIAL_8U232AM, 8U232AM),
|
|
UFTDI_DEV(FTDI, SERIAL_8U232AM4, 8U232AM),
|
|
UFTDI_DEV(FTDI, SEMC_DSS20, 8U232AM),
|
|
UFTDI_DEV(FTDI, CFA_631, 8U232AM),
|
|
UFTDI_DEV(FTDI, CFA_632, 8U232AM),
|
|
UFTDI_DEV(FTDI, CFA_633, 8U232AM),
|
|
UFTDI_DEV(FTDI, CFA_634, 8U232AM),
|
|
UFTDI_DEV(FTDI, CFA_635, 8U232AM),
|
|
UFTDI_DEV(FTDI, USB_UIRT, 8U232AM),
|
|
UFTDI_DEV(FTDI, USBSERIAL, 8U232AM),
|
|
UFTDI_DEV(FTDI, KBS, 8U232AM),
|
|
UFTDI_DEV(FTDI, MX2_3, 8U232AM),
|
|
UFTDI_DEV(FTDI, MX4_5, 8U232AM),
|
|
UFTDI_DEV(FTDI, LK202, 8U232AM),
|
|
UFTDI_DEV(FTDI, LK204, 8U232AM),
|
|
UFTDI_DEV(FTDI, TACTRIX_OPENPORT_13M, 8U232AM),
|
|
UFTDI_DEV(FTDI, TACTRIX_OPENPORT_13S, 8U232AM),
|
|
UFTDI_DEV(FTDI, TACTRIX_OPENPORT_13U, 8U232AM),
|
|
UFTDI_DEV(FTDI, EISCOU, 8U232AM),
|
|
UFTDI_DEV(FTDI, UOPTBR, 8U232AM),
|
|
UFTDI_DEV(FTDI, EMCU2D, 8U232AM),
|
|
UFTDI_DEV(FTDI, PCMSFU, 8U232AM),
|
|
UFTDI_DEV(FTDI, EMCU2H, 8U232AM),
|
|
UFTDI_DEV(FTDI, MAXSTREAM, 8U232AM),
|
|
UFTDI_DEV(FTDI, CTI_USB_NANO_485, 8U232AM),
|
|
UFTDI_DEV(FTDI, CTI_USB_MINI_485, 8U232AM),
|
|
UFTDI_DEV(SIIG2, US2308, 8U232AM),
|
|
UFTDI_DEV(INTREPIDCS, VALUECAN, 8U232AM),
|
|
UFTDI_DEV(INTREPIDCS, NEOVI, 8U232AM),
|
|
UFTDI_DEV(BBELECTRONICS, USOTL4, 8U232AM),
|
|
UFTDI_DEV(MATRIXORBITAL, MOUA, 8U232AM),
|
|
UFTDI_DEV(MARVELL, SHEEVAPLUG, 8U232AM),
|
|
UFTDI_DEV(MELCO, PCOPRS1, 8U232AM),
|
|
UFTDI_DEV(RATOC, REXUSB60F, 8U232AM),
|
|
#undef UFTDI_DEV
|
|
};
|
|
|
|
static int
|
|
uftdi_probe(device_t dev)
|
|
{
|
|
struct usb_attach_arg *uaa = device_get_ivars(dev);
|
|
|
|
if (uaa->usb_mode != USB_MODE_HOST) {
|
|
return (ENXIO);
|
|
}
|
|
if (uaa->info.bConfigIndex != UFTDI_CONFIG_INDEX) {
|
|
return (ENXIO);
|
|
}
|
|
/* attach to all present interfaces */
|
|
|
|
return (usbd_lookup_id_by_uaa(uftdi_devs, sizeof(uftdi_devs), uaa));
|
|
}
|
|
|
|
static int
|
|
uftdi_attach(device_t dev)
|
|
{
|
|
struct usb_attach_arg *uaa = device_get_ivars(dev);
|
|
struct uftdi_softc *sc = device_get_softc(dev);
|
|
int error;
|
|
|
|
sc->sc_udev = uaa->device;
|
|
sc->sc_dev = dev;
|
|
sc->sc_unit = device_get_unit(dev);
|
|
|
|
device_set_usb_desc(dev);
|
|
mtx_init(&sc->sc_mtx, "uftdi", NULL, MTX_DEF);
|
|
|
|
snprintf(sc->sc_name, sizeof(sc->sc_name),
|
|
"%s", device_get_nameunit(dev));
|
|
|
|
DPRINTF("\n");
|
|
|
|
sc->sc_iface_index = uaa->info.bIfaceIndex;
|
|
sc->sc_type = USB_GET_DRIVER_INFO(uaa);
|
|
|
|
switch (sc->sc_type) {
|
|
case UFTDI_TYPE_SIO:
|
|
sc->sc_hdrlen = 1;
|
|
break;
|
|
case UFTDI_TYPE_8U232AM:
|
|
default:
|
|
sc->sc_hdrlen = 0;
|
|
break;
|
|
}
|
|
|
|
error = usbd_transfer_setup(uaa->device,
|
|
&sc->sc_iface_index, sc->sc_xfer, uftdi_config,
|
|
UFTDI_N_TRANSFER, sc, &sc->sc_mtx);
|
|
|
|
if (error) {
|
|
device_printf(dev, "allocating USB "
|
|
"transfers failed\n");
|
|
goto detach;
|
|
}
|
|
sc->sc_ucom.sc_portno = FTDI_PIT_SIOA + uaa->info.bIfaceNum;
|
|
|
|
/* clear stall at first run */
|
|
mtx_lock(&sc->sc_mtx);
|
|
usbd_xfer_set_stall(sc->sc_xfer[UFTDI_BULK_DT_WR]);
|
|
usbd_xfer_set_stall(sc->sc_xfer[UFTDI_BULK_DT_RD]);
|
|
mtx_unlock(&sc->sc_mtx);
|
|
|
|
/* set a valid "lcr" value */
|
|
|
|
sc->sc_last_lcr =
|
|
(FTDI_SIO_SET_DATA_STOP_BITS_2 |
|
|
FTDI_SIO_SET_DATA_PARITY_NONE |
|
|
FTDI_SIO_SET_DATA_BITS(8));
|
|
|
|
error = ucom_attach(&sc->sc_super_ucom, &sc->sc_ucom, 1, sc,
|
|
&uftdi_callback, &sc->sc_mtx);
|
|
if (error) {
|
|
goto detach;
|
|
}
|
|
ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev);
|
|
|
|
return (0); /* success */
|
|
|
|
detach:
|
|
uftdi_detach(dev);
|
|
return (ENXIO);
|
|
}
|
|
|
|
static int
|
|
uftdi_detach(device_t dev)
|
|
{
|
|
struct uftdi_softc *sc = device_get_softc(dev);
|
|
|
|
ucom_detach(&sc->sc_super_ucom, &sc->sc_ucom);
|
|
usbd_transfer_unsetup(sc->sc_xfer, UFTDI_N_TRANSFER);
|
|
mtx_destroy(&sc->sc_mtx);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
uftdi_cfg_open(struct ucom_softc *ucom)
|
|
{
|
|
struct uftdi_softc *sc = ucom->sc_parent;
|
|
uint16_t wIndex = ucom->sc_portno;
|
|
struct usb_device_request req;
|
|
|
|
DPRINTF("");
|
|
|
|
/* perform a full reset on the device */
|
|
|
|
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
|
|
req.bRequest = FTDI_SIO_RESET;
|
|
USETW(req.wValue, FTDI_SIO_RESET_SIO);
|
|
USETW(req.wIndex, wIndex);
|
|
USETW(req.wLength, 0);
|
|
ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
|
|
&req, NULL, 0, 1000);
|
|
|
|
/* turn on RTS/CTS flow control */
|
|
|
|
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
|
|
req.bRequest = FTDI_SIO_SET_FLOW_CTRL;
|
|
USETW(req.wValue, 0);
|
|
USETW2(req.wIndex, FTDI_SIO_RTS_CTS_HS, wIndex);
|
|
USETW(req.wLength, 0);
|
|
ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
|
|
&req, NULL, 0, 1000);
|
|
|
|
/*
|
|
* NOTE: with the new UCOM layer there will always be a
|
|
* "uftdi_cfg_param()" call after "open()", so there is no need for
|
|
* "open()" to configure anything
|
|
*/
|
|
}
|
|
|
|
static void
|
|
uftdi_write_callback(struct usb_xfer *xfer, usb_error_t error)
|
|
{
|
|
struct uftdi_softc *sc = usbd_xfer_softc(xfer);
|
|
struct usb_page_cache *pc;
|
|
uint32_t actlen;
|
|
uint8_t buf[1];
|
|
|
|
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,
|
|
sc->sc_hdrlen, UFTDI_OBUFSIZE - sc->sc_hdrlen,
|
|
&actlen)) {
|
|
|
|
if (sc->sc_hdrlen > 0) {
|
|
buf[0] =
|
|
FTDI_OUT_TAG(actlen, sc->sc_ucom.sc_portno);
|
|
usbd_copy_in(pc, 0, buf, 1);
|
|
}
|
|
usbd_xfer_set_frame_len(xfer, 0, actlen + sc->sc_hdrlen);
|
|
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_read_callback(struct usb_xfer *xfer, usb_error_t error)
|
|
{
|
|
struct uftdi_softc *sc = usbd_xfer_softc(xfer);
|
|
struct usb_page_cache *pc;
|
|
uint8_t buf[2];
|
|
uint8_t ftdi_msr;
|
|
uint8_t msr;
|
|
uint8_t lsr;
|
|
int actlen;
|
|
|
|
usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
|
|
|
|
switch (USB_GET_STATE(xfer)) {
|
|
case USB_ST_TRANSFERRED:
|
|
|
|
if (actlen < 2) {
|
|
goto tr_setup;
|
|
}
|
|
pc = usbd_xfer_get_frame(xfer, 0);
|
|
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);
|
|
}
|