Aren
/
NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
NetBSD/sys/dev/usb/moscom.c

463 lines
11 KiB
C
Raw Blame History

/* $NetBSD: moscom.c,v 1.8 2012/09/23 01:08:17 chs Exp $ */
/* $OpenBSD: moscom.c,v 1.11 2007/10/11 18:33:14 deraadt 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/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: moscom.c,v 1.8 2012/09/23 01:08:17 chs Exp $");
#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>
#define MOSCOMBUFSZ 256
#define MOSCOM_CONFIG_NO 0
#define MOSCOM_IFACE_NO 0
#define MOSCOM_READ 0x0d
#define MOSCOM_WRITE 0x0e
#define MOSCOM_UART_REG 0x0300
#define MOSCOM_VEND_REG 0x0000
#define MOSCOM_TXBUF 0x00 /* Write */
#define MOSCOM_RXBUF 0x00 /* Read */
#define MOSCOM_INT 0x01
#define MOSCOM_FIFO 0x02 /* Write */
#define MOSCOM_ISR 0x02 /* Read */
#define MOSCOM_LCR 0x03
#define MOSCOM_MCR 0x04
#define MOSCOM_LSR 0x05
#define MOSCOM_MSR 0x06
#define MOSCOM_SCRATCH 0x07
#define MOSCOM_DIV_LO 0x08
#define MOSCOM_DIV_HI 0x09
#define MOSCOM_EFR 0x0a
#define MOSCOM_XON1 0x0b
#define MOSCOM_XON2 0x0c
#define MOSCOM_XOFF1 0x0d
#define MOSCOM_XOFF2 0x0e
#define MOSCOM_BAUDLO 0x00
#define MOSCOM_BAUDHI 0x01
#define MOSCOM_INT_RXEN 0x01
#define MOSCOM_INT_TXEN 0x02
#define MOSCOM_INT_RSEN 0x04
#define MOSCOM_INT_MDMEM 0x08
#define MOSCOM_INT_SLEEP 0x10
#define MOSCOM_INT_XOFF 0x20
#define MOSCOM_INT_RTS 0x40
#define MOSCOM_FIFO_EN 0x01
#define MOSCOM_FIFO_RXCLR 0x02
#define MOSCOM_FIFO_TXCLR 0x04
#define MOSCOM_FIFO_DMA_BLK 0x08
#define MOSCOM_FIFO_TXLVL_MASK 0x30
#define MOSCOM_FIFO_TXLVL_8 0x00
#define MOSCOM_FIFO_TXLVL_16 0x10
#define MOSCOM_FIFO_TXLVL_32 0x20
#define MOSCOM_FIFO_TXLVL_56 0x30
#define MOSCOM_FIFO_RXLVL_MASK 0xc0
#define MOSCOM_FIFO_RXLVL_8 0x00
#define MOSCOM_FIFO_RXLVL_16 0x40
#define MOSCOM_FIFO_RXLVL_56 0x80
#define MOSCOM_FIFO_RXLVL_80 0xc0
#define MOSCOM_ISR_MDM 0x00
#define MOSCOM_ISR_NONE 0x01
#define MOSCOM_ISR_TX 0x02
#define MOSCOM_ISR_RX 0x04
#define MOSCOM_ISR_LINE 0x06
#define MOSCOM_ISR_RXTIMEOUT 0x0c
#define MOSCOM_ISR_RX_XOFF 0x10
#define MOSCOM_ISR_RTSCTS 0x20
#define MOSCOM_ISR_FIFOEN 0xc0
#define MOSCOM_LCR_DBITS(x) (x - 5)
#define MOSCOM_LCR_STOP_BITS_1 0x00
#define MOSCOM_LCR_STOP_BITS_2 0x04 /* 2 if 6-8 bits/char or 1.5 if 5 */
#define MOSCOM_LCR_PARITY_NONE 0x00
#define MOSCOM_LCR_PARITY_ODD 0x08
#define MOSCOM_LCR_PARITY_EVEN 0x18
#define MOSCOM_LCR_BREAK 0x40
#define MOSCOM_LCR_DIVLATCH_EN 0x80
#define MOSCOM_MCR_DTR 0x01
#define MOSCOM_MCR_RTS 0x02
#define MOSCOM_MCR_LOOP 0x04
#define MOSCOM_MCR_INTEN 0x08
#define MOSCOM_MCR_LOOPBACK 0x10
#define MOSCOM_MCR_XONANY 0x20
#define MOSCOM_MCR_IRDA_EN 0x40
#define MOSCOM_MCR_BAUD_DIV4 0x80
#define MOSCOM_LSR_RXDATA 0x01
#define MOSCOM_LSR_RXOVER 0x02
#define MOSCOM_LSR_RXPAR_ERR 0x04
#define MOSCOM_LSR_RXFRM_ERR 0x08
#define MOSCOM_LSR_RXBREAK 0x10
#define MOSCOM_LSR_TXEMPTY 0x20
#define MOSCOM_LSR_TXALLEMPTY 0x40
#define MOSCOM_LSR_TXFIFO_ERR 0x80
#define MOSCOM_MSR_CTS_CHG 0x01
#define MOSCOM_MSR_DSR_CHG 0x02
#define MOSCOM_MSR_RI_CHG 0x04
#define MOSCOM_MSR_CD_CHG 0x08
#define MOSCOM_MSR_CTS 0x10
#define MOSCOM_MSR_RTS 0x20
#define MOSCOM_MSR_RI 0x40
#define MOSCOM_MSR_CD 0x80
#define MOSCOM_BAUD_REF 115200
struct moscom_softc {
device_t sc_dev;
usbd_device_handle sc_udev;
usbd_interface_handle sc_iface;
device_t sc_subdev;
u_char sc_msr;
u_char sc_lsr;
u_char sc_lcr;
u_char sc_dying;
};
void moscom_get_status(void *, int, u_char *, u_char *);
void moscom_set(void *, int, int, int);
int moscom_param(void *, int, struct termios *);
int moscom_open(void *, int);
int moscom_cmd(struct moscom_softc *, int, int);
struct ucom_methods moscom_methods = {
NULL,
moscom_set,
moscom_param,
NULL,
moscom_open,
NULL,
NULL,
NULL,
};
static const struct usb_devno moscom_devs[] = {
{ USB_VENDOR_MOSCHIP, USB_PRODUCT_MOSCHIP_MCS7703 },
{ USB_VENDOR_MOSCHIP, USB_PRODUCT_MOSCHIP_MCS7840 },
{ USB_VENDOR_ATEN, USB_PRODUCT_ATEN_UC2324 }
};
#define moscom_lookup(v, p) usb_lookup(moscom_devs, v, p)
int moscom_match(device_t, cfdata_t, void *);
void moscom_attach(device_t, device_t, void *);
void moscom_childdet(device_t, device_t);
int moscom_detach(device_t, int);
int moscom_activate(device_t, enum devact);
CFATTACH_DECL2_NEW(moscom, sizeof(struct moscom_softc), moscom_match,
moscom_attach, moscom_detach, moscom_activate, NULL, moscom_childdet);
int
moscom_match(device_t parent, cfdata_t match, void *aux)
{
struct usb_attach_arg *uaa = aux;
return (moscom_lookup(uaa->vendor, uaa->product) != NULL ?
UMATCH_VENDOR_PRODUCT : UMATCH_NONE);
}
void
moscom_attach(device_t parent, device_t self, void *aux)
{
struct moscom_softc *sc = device_private(self);
struct usb_attach_arg *uaa = aux;
usbd_device_handle dev = uaa->device;
struct ucom_attach_args uca;
usb_interface_descriptor_t *id;
usb_endpoint_descriptor_t *ed;
char *devinfop;
usbd_status error;
int i;
aprint_naive("\n");
aprint_normal("\n");
devinfop = usbd_devinfo_alloc(dev, 0);
aprint_normal_dev(self, "%s\n", devinfop);
usbd_devinfo_free(devinfop);
sc->sc_dev = self;
bzero(&uca, sizeof(uca));
sc->sc_udev = uaa->device;
if (usbd_set_config_index(sc->sc_udev, MOSCOM_CONFIG_NO, 1) != 0) {
aprint_error_dev(self, "could not set configuration no\n");
sc->sc_dying = 1;
return;
}
/* get the first interface handle */
error = usbd_device2interface_handle(sc->sc_udev, MOSCOM_IFACE_NO,
&sc->sc_iface);
if (error != 0) {
aprint_error_dev(self, "could not get interface handle\n");
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) {
aprint_error_dev(self,
"no endpoint descriptor found for %d\n", 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) {
aprint_error_dev(self, "missing endpoint\n");
sc->sc_dying = 1;
return;
}
uca.ibufsize = MOSCOMBUFSZ;
uca.obufsize = MOSCOMBUFSZ;
uca.ibufsizepad = MOSCOMBUFSZ;
uca.opkthdrlen = 0;
uca.device = sc->sc_udev;
uca.iface = sc->sc_iface;
uca.methods = &moscom_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_loc(self, "ucombus", NULL, &uca,
ucomprint, ucomsubmatch);
return;
}
void
moscom_childdet(device_t self, device_t child)
{
struct moscom_softc *sc = device_private(self);
KASSERT(sc->sc_subdev == child);
sc->sc_subdev = NULL;
}
int
moscom_detach(device_t self, int flags)
{
struct moscom_softc *sc = device_private(self);
int rv = 0;
sc->sc_dying = 1;
if (sc->sc_subdev != NULL)
rv = config_detach(sc->sc_subdev, flags);
usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev,
sc->sc_dev);
return (rv);
}
int
moscom_activate(device_t self, enum devact act)
{
struct moscom_softc *sc = device_private(self);
switch (act) {
case DVACT_DEACTIVATE:
sc->sc_dying = 1;
return 0;
default:
return EOPNOTSUPP;
}
}
int
moscom_open(void *vsc, int portno)
{
struct moscom_softc *sc = vsc;
usb_device_request_t req;
if (sc->sc_dying)
return (EIO);
/* Purge FIFOs or odd things happen */
if (moscom_cmd(sc, MOSCOM_FIFO, 0x00) != 0)
return (EIO);
if (moscom_cmd(sc, MOSCOM_FIFO, MOSCOM_FIFO_EN |
MOSCOM_FIFO_RXCLR | MOSCOM_FIFO_TXCLR |
MOSCOM_FIFO_DMA_BLK | MOSCOM_FIFO_RXLVL_MASK) != 0)
return (EIO);
/* Magic tell device we're ready for data command */
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
req.bRequest = MOSCOM_WRITE;
USETW(req.wValue, 0x08);
USETW(req.wIndex, MOSCOM_INT);
USETW(req.wLength, 0);
if (usbd_do_request(sc->sc_udev, &req, NULL) != 0)
return (EIO);
return (0);
}
void
moscom_set(void *vsc, int portno, int reg, int onoff)
{
struct moscom_softc *sc = vsc;
int val;
switch (reg) {
case UCOM_SET_DTR:
val = onoff ? MOSCOM_MCR_DTR : 0;
break;
case UCOM_SET_RTS:
val = onoff ? MOSCOM_MCR_RTS : 0;
break;
case UCOM_SET_BREAK:
val = sc->sc_lcr;
if (onoff)
val |= MOSCOM_LCR_BREAK;
moscom_cmd(sc, MOSCOM_LCR, val);
return;
default:
return;
}
moscom_cmd(sc, MOSCOM_MCR, val);
}
int
moscom_param(void *vsc, int portno, struct termios *t)
{
struct moscom_softc *sc = (struct moscom_softc *)vsc;
int data;
if (t->c_ospeed <= 0 || t->c_ospeed > 115200)
return (EINVAL);
data = MOSCOM_BAUD_REF / t->c_ospeed;
if (data == 0 || data > 0xffff)
return (EINVAL);
moscom_cmd(sc, MOSCOM_LCR, MOSCOM_LCR_DIVLATCH_EN);
moscom_cmd(sc, MOSCOM_BAUDLO, data & 0xFF);
moscom_cmd(sc, MOSCOM_BAUDHI, (data >> 8) & 0xFF);
if (ISSET(t->c_cflag, CSTOPB))
data = MOSCOM_LCR_STOP_BITS_2;
else
data = MOSCOM_LCR_STOP_BITS_1;
if (ISSET(t->c_cflag, PARENB)) {
if (ISSET(t->c_cflag, PARODD))
data |= MOSCOM_LCR_PARITY_ODD;
else
data |= MOSCOM_LCR_PARITY_EVEN;
} else
data |= MOSCOM_LCR_PARITY_NONE;
switch (ISSET(t->c_cflag, CSIZE)) {
case CS5:
data |= MOSCOM_LCR_DBITS(5);
break;
case CS6:
data |= MOSCOM_LCR_DBITS(6);
break;
case CS7:
data |= MOSCOM_LCR_DBITS(7);
break;
case CS8:
data |= MOSCOM_LCR_DBITS(8);
break;
}
sc->sc_lcr = data;
moscom_cmd(sc, MOSCOM_LCR, sc->sc_lcr);
#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
moscom_get_status(void *vsc, int portno, u_char *lsr, u_char *msr)
{
struct moscom_softc *sc = vsc;
if (msr != NULL)
*msr = sc->sc_msr;
if (lsr != NULL)
*lsr = sc->sc_lsr;
}
int
moscom_cmd(struct moscom_softc *sc, int reg, int val)
{
usb_device_request_t req;
usbd_status err;
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
req.bRequest = MOSCOM_WRITE;
USETW(req.wValue, val + MOSCOM_UART_REG);
USETW(req.wIndex, reg);
USETW(req.wLength, 0);
err = usbd_do_request(sc->sc_udev, &req, NULL);
if (err)
return (EIO);
else
return (0);
}
Reference in New Issue View Git Blame Copy Permalink