File: [local] / sys / dev / usb / uslcom.c (download)
Revision 1.1, Tue Mar 4 16:14:33 2008 UTC (16 years, 6 months ago) by nbrk
Branch point for: MAIN
Initial revision
|
/* $OpenBSD: uslcom.c,v 1.13 2007/06/14 10:11:16 mbalmer Exp $ */
/*
* Copyright (c) 2006 Jonathan Gray <jsg@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/conf.h>
#include <sys/tty.h>
#include <sys/device.h>
#include <dev/usb/usb.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usbdi_util.h>
#include <dev/usb/usbdevs.h>
#include <dev/usb/usbdevs.h>
#include <dev/usb/ucomvar.h>
#ifdef USLCOM_DEBUG
#define DPRINTFN(n, x) do { if (uslcomdebug > (n)) printf x; } while (0)
int uslcomdebug = 0;
#else
#define DPRINTFN(n, x)
#endif
#define DPRINTF(x) DPRINTFN(0, x)
#define USLCOMBUFSZ 256
#define USLCOM_CONFIG_NO 0
#define USLCOM_IFACE_NO 0
#define USLCOM_SET_DATA_BITS(x) (x << 8)
#define USLCOM_WRITE 0x41
#define USLCOM_READ 0xc1
#define USLCOM_UART 0x00
#define USLCOM_BAUD_RATE 0x01
#define USLCOM_DATA 0x03
#define USLCOM_BREAK 0x05
#define USLCOM_CTRL 0x07
#define USLCOM_UART_DISABLE 0x00
#define USLCOM_UART_ENABLE 0x01
#define USLCOM_CTRL_DTR_ON 0x0001
#define USLCOM_CTRL_DTR_SET 0x0100
#define USLCOM_CTRL_RTS_ON 0x0002
#define USLCOM_CTRL_RTS_SET 0x0200
#define USLCOM_CTRL_CTS 0x0010
#define USLCOM_CTRL_DSR 0x0020
#define USLCOM_CTRL_DCD 0x0080
#define USLCOM_BAUD_REF 0x384000
#define USLCOM_STOP_BITS_1 0x00
#define USLCOM_STOP_BITS_2 0x02
#define USLCOM_PARITY_NONE 0x00
#define USLCOM_PARITY_ODD 0x10
#define USLCOM_PARITY_EVEN 0x20
#define USLCOM_BREAK_OFF 0x00
#define USLCOM_BREAK_ON 0x01
struct uslcom_softc {
struct device sc_dev;
usbd_device_handle sc_udev;
usbd_interface_handle sc_iface;
struct device *sc_subdev;
u_char sc_msr;
u_char sc_lsr;
u_char sc_dying;
};
void uslcom_get_status(void *, int portno, u_char *lsr, u_char *msr);
void uslcom_set(void *, int, int, int);
int uslcom_param(void *, int, struct termios *);
int uslcom_open(void *sc, int portno);
void uslcom_close(void *, int);
void uslcom_break(void *sc, int portno, int onoff);
struct ucom_methods uslcom_methods = {
uslcom_get_status,
uslcom_set,
uslcom_param,
NULL,
uslcom_open,
uslcom_close,
NULL,
NULL,
};
static const struct usb_devno uslcom_devs[] = {
{ USB_VENDOR_BALTECH, USB_PRODUCT_BALTECH_CARDREADER },
{ USB_VENDOR_DYNASTREAM, USB_PRODUCT_DYNASTREAM_ANTDEVBOARD },
{ USB_VENDOR_JABLOTRON, USB_PRODUCT_JABLOTRON_PC60B },
{ USB_VENDOR_SILABS, USB_PRODUCT_SILABS_ARGUSISP },
{ USB_VENDOR_SILABS, USB_PRODUCT_SILABS_CRUMB128 },
{ USB_VENDOR_SILABS, USB_PRODUCT_SILABS_DEGREECONT },
{ USB_VENDOR_SILABS, USB_PRODUCT_SILABS_DESKTOPMOBILE },
{ USB_VENDOR_SILABS, USB_PRODUCT_SILABS_IPLINK1220 },
{ USB_VENDOR_SILABS, USB_PRODUCT_SILABS_LIPOWSKY_HARP },
{ USB_VENDOR_SILABS, USB_PRODUCT_SILABS_LIPOWSKY_JTAG },
{ USB_VENDOR_SILABS, USB_PRODUCT_SILABS_LIPOWSKY_LIN },
{ USB_VENDOR_SILABS, USB_PRODUCT_SILABS_POLOLU },
{ USB_VENDOR_SILABS, USB_PRODUCT_SILABS_CP210X_1 },
{ USB_VENDOR_SILABS, USB_PRODUCT_SILABS_CP210X_2 },
{ USB_VENDOR_SILABS, USB_PRODUCT_SILABS_SUNNTO },
{ USB_VENDOR_SILABS2, USB_PRODUCT_SILABS2_DCU11CLONE },
{ USB_VENDOR_USI, USB_PRODUCT_USI_MC60 }
};
int uslcom_match(struct device *, void *, void *);
void uslcom_attach(struct device *, struct device *, void *);
int uslcom_detach(struct device *, int);
int uslcom_activate(struct device *, enum devact);
struct cfdriver uslcom_cd = {
NULL, "uslcom", DV_DULL
};
const struct cfattach uslcom_ca = {
sizeof(struct uslcom_softc),
uslcom_match,
uslcom_attach,
uslcom_detach,
uslcom_activate,
};
int
uslcom_match(struct device *parent, void *match, void *aux)
{
struct usb_attach_arg *uaa = aux;
if (uaa->iface != NULL)
return UMATCH_NONE;
return (usb_lookup(uslcom_devs, uaa->vendor, uaa->product) != NULL) ?
UMATCH_VENDOR_PRODUCT : UMATCH_NONE;
}
void
uslcom_attach(struct device *parent, struct device *self, void *aux)
{
struct uslcom_softc *sc = (struct uslcom_softc *)self;
struct usb_attach_arg *uaa = aux;
struct ucom_attach_args uca;
usb_interface_descriptor_t *id;
usb_endpoint_descriptor_t *ed;
usbd_status error;
char *devinfop;
int i;
bzero(&uca, sizeof(uca));
sc->sc_udev = uaa->device;
devinfop = usbd_devinfo_alloc(uaa->device, 0);
printf("\n%s: %s\n", sc->sc_dev.dv_xname, devinfop);
usbd_devinfo_free(devinfop);
if (usbd_set_config_index(sc->sc_udev, USLCOM_CONFIG_NO, 1) != 0) {
printf("%s: could not set configuration no\n",
sc->sc_dev.dv_xname);
sc->sc_dying = 1;
return;
}
/* get the first interface handle */
error = usbd_device2interface_handle(sc->sc_udev, USLCOM_IFACE_NO,
&sc->sc_iface);
if (error != 0) {
printf("%s: could not get interface handle\n",
sc->sc_dev.dv_xname);
sc->sc_dying = 1;
return;
}
id = usbd_get_interface_descriptor(sc->sc_iface);
uca.bulkin = uca.bulkout = -1;
for (i = 0; i < id->bNumEndpoints; i++) {
ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i);
if (ed == NULL) {
printf("%s: no endpoint descriptor found for %d\n",
sc->sc_dev.dv_xname, i);
sc->sc_dying = 1;
return;
}
if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK)
uca.bulkin = ed->bEndpointAddress;
else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK)
uca.bulkout = ed->bEndpointAddress;
}
if (uca.bulkin == -1 || uca.bulkout == -1) {
printf("%s: missing endpoint\n", sc->sc_dev.dv_xname);
sc->sc_dying = 1;
return;
}
uca.ibufsize = USLCOMBUFSZ;
uca.obufsize = USLCOMBUFSZ;
uca.ibufsizepad = USLCOMBUFSZ;
uca.opkthdrlen = 0;
uca.device = sc->sc_udev;
uca.iface = sc->sc_iface;
uca.methods = &uslcom_methods;
uca.arg = sc;
uca.info = NULL;
usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev,
&sc->sc_dev);
sc->sc_subdev = config_found_sm(self, &uca, ucomprint, ucomsubmatch);
}
int
uslcom_detach(struct device *self, int flags)
{
struct uslcom_softc *sc = (struct uslcom_softc *)self;
int rv = 0;
sc->sc_dying = 1;
if (sc->sc_subdev != NULL) {
rv = config_detach(sc->sc_subdev, flags);
sc->sc_subdev = NULL;
}
usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev,
&sc->sc_dev);
return (rv);
}
int
uslcom_activate(struct device *self, enum devact act)
{
struct uslcom_softc *sc = (struct uslcom_softc *)self;
int rv = 0;
switch (act) {
case DVACT_ACTIVATE:
break;
case DVACT_DEACTIVATE:
if (sc->sc_subdev != NULL)
rv = config_deactivate(sc->sc_subdev);
sc->sc_dying = 1;
break;
}
return (rv);
}
int
uslcom_open(void *vsc, int portno)
{
struct uslcom_softc *sc = vsc;
usb_device_request_t req;
usbd_status err;
if (sc->sc_dying)
return (EIO);
req.bmRequestType = USLCOM_WRITE;
req.bRequest = USLCOM_UART;
USETW(req.wValue, USLCOM_UART_ENABLE);
USETW(req.wIndex, portno);
USETW(req.wLength, 0);
err = usbd_do_request(sc->sc_udev, &req, NULL);
if (err)
return (EIO);
return (0);
}
void
uslcom_close(void *vsc, int portno)
{
struct uslcom_softc *sc = vsc;
usb_device_request_t req;
if (sc->sc_dying)
return;
req.bmRequestType = USLCOM_WRITE;
req.bRequest = USLCOM_UART;
USETW(req.wValue, USLCOM_UART_DISABLE);
USETW(req.wIndex, portno);
USETW(req.wLength, 0);
usbd_do_request(sc->sc_udev, &req, NULL);
}
void
uslcom_set(void *vsc, int portno, int reg, int onoff)
{
struct uslcom_softc *sc = vsc;
usb_device_request_t req;
int ctl;
switch (reg) {
case UCOM_SET_DTR:
ctl = onoff ? USLCOM_CTRL_DTR_ON : 0;
ctl |= USLCOM_CTRL_DTR_SET;
break;
case UCOM_SET_RTS:
ctl = onoff ? USLCOM_CTRL_RTS_ON : 0;
ctl |= USLCOM_CTRL_RTS_SET;
break;
case UCOM_SET_BREAK:
uslcom_break(sc, portno, onoff);
return;
default:
return;
}
req.bmRequestType = USLCOM_WRITE;
req.bRequest = USLCOM_CTRL;
USETW(req.wValue, ctl);
USETW(req.wIndex, portno);
USETW(req.wLength, 0);
usbd_do_request(sc->sc_udev, &req, NULL);
}
int
uslcom_param(void *vsc, int portno, struct termios *t)
{
struct uslcom_softc *sc = (struct uslcom_softc *)vsc;
usbd_status err;
usb_device_request_t req;
int data;
switch (t->c_ospeed) {
case 600:
case 1200:
case 1800:
case 2400:
case 4800:
case 9600:
case 19200:
case 38400:
case 57600:
case 115200:
case 460800:
case 921600:
req.bmRequestType = USLCOM_WRITE;
req.bRequest = USLCOM_BAUD_RATE;
USETW(req.wValue, USLCOM_BAUD_REF / t->c_ospeed);
USETW(req.wIndex, portno);
USETW(req.wLength, 0);
err = usbd_do_request(sc->sc_udev, &req, NULL);
if (err)
return (EIO);
break;
default:
return (EINVAL);
}
if (ISSET(t->c_cflag, CSTOPB))
data = USLCOM_STOP_BITS_2;
else
data = USLCOM_STOP_BITS_1;
if (ISSET(t->c_cflag, PARENB)) {
if (ISSET(t->c_cflag, PARODD))
data |= USLCOM_PARITY_ODD;
else
data |= USLCOM_PARITY_EVEN;
} else
data |= USLCOM_PARITY_NONE;
switch (ISSET(t->c_cflag, CSIZE)) {
case CS5:
data |= USLCOM_SET_DATA_BITS(5);
break;
case CS6:
data |= USLCOM_SET_DATA_BITS(6);
break;
case CS7:
data |= USLCOM_SET_DATA_BITS(7);
break;
case CS8:
data |= USLCOM_SET_DATA_BITS(8);
break;
}
req.bmRequestType = USLCOM_WRITE;
req.bRequest = USLCOM_DATA;
USETW(req.wValue, data);
USETW(req.wIndex, portno);
USETW(req.wLength, 0);
err = usbd_do_request(sc->sc_udev, &req, NULL);
if (err)
return (EIO);
#if 0
/* XXX flow control */
if (ISSET(t->c_cflag, CRTSCTS))
/* rts/cts flow ctl */
} else if (ISSET(t->c_iflag, IXON|IXOFF)) {
/* xon/xoff flow ctl */
} else {
/* disable flow ctl */
}
#endif
return (0);
}
void
uslcom_get_status(void *vsc, int portno, u_char *lsr, u_char *msr)
{
struct uslcom_softc *sc = vsc;
if (msr != NULL)
*msr = sc->sc_msr;
if (lsr != NULL)
*lsr = sc->sc_lsr;
}
void
uslcom_break(void *vsc, int portno, int onoff)
{
struct uslcom_softc *sc = vsc;
usb_device_request_t req;
int brk = onoff ? USLCOM_BREAK_ON : USLCOM_BREAK_OFF;
req.bmRequestType = USLCOM_WRITE;
req.bRequest = USLCOM_BREAK;
USETW(req.wValue, brk);
USETW(req.wIndex, portno);
USETW(req.wLength, 0);
usbd_do_request(sc->sc_udev, &req, NULL);
}