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NetBSD/sys/dev/usb/uirda.c

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/* $NetBSD: uirda.c,v 1.22 2006/11/16 01:33:27 christos Exp $ */
/*
* Copyright (c) 2001 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.
* 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.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: uirda.c,v 1.22 2006/11/16 01:33:27 christos Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/device.h>
#include <sys/lock.h>
#include <sys/ioctl.h>
#include <sys/conf.h>
#include <sys/file.h>
#include <sys/poll.h>
#include <sys/select.h>
#include <sys/proc.h>
#include <dev/usb/usb.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usbdi_util.h>
#include <dev/usb/usbdevs.h>
#include <dev/ir/ir.h>
#include <dev/ir/irdaio.h>
#include <dev/ir/irframevar.h>
#ifdef UIRDA_DEBUG
#define DPRINTF(x) if (uirdadebug) logprintf x
#define DPRINTFN(n,x) if (uirdadebug>(n)) logprintf x
int uirdadebug = 0;
#else
#define DPRINTF(x)
#define DPRINTFN(n,x)
#endif
/*
* Protocol related definitions
*/
#define UIRDA_INPUT_HEADER_SIZE 1
/* Inbound header byte */
#define UIRDA_MEDIA_BUSY 0x80
#define UIRDA_SPEED_MASK 0x0f
#define UIRDA_NO_SPEED 0x00
#define UIRDA_2400 0x01
#define UIRDA_9600 0x02
#define UIRDA_19200 0x03
#define UIRDA_38400 0x04
#define UIRDA_57600 0x05
#define UIRDA_115200 0x06
#define UIRDA_576000 0x07
#define UIRDA_1152000 0x08
#define UIRDA_4000000 0x09
#define UIRDA_OUTPUT_HEADER_SIZE 1
/* Outbound header byte */
#define UIRDA_EB_NO_CHANGE 0x00
#define UIRDA_EB_48 0x10
#define UIRDA_EB_24 0x20
#define UIRDA_EB_12 0x30
#define UIRDA_EB_6 0x40
#define UIRDA_EB_3 0x50
#define UIRDA_EB_2 0x60
#define UIRDA_EB_1 0x70
#define UIRDA_EB_0 0x80
/* Speeds as above */
/* Class specific requests */
#define UR_IRDA_RECEIVING 0x01 /* Receive in progress? */
#define UR_IRDA_CHECK_MEDIA_BUSY 0x03
#define UR_IRDA_SET_RATE_SNIFF 0x04 /* opt */
#define UR_IRDA_SET_UNICAST_LIST 0x05 /* opt */
#define UR_IRDA_GET_DESC 0x06
typedef struct {
uByte bLength;
uByte bDescriptorType;
#define UDESC_IRDA 0x21
uWord bcdSpecRevision;
uByte bmDataSize;
#define UI_DS_2048 0x20
#define UI_DS_1024 0x10
#define UI_DS_512 0x08
#define UI_DS_256 0x04
#define UI_DS_128 0x02
#define UI_DS_64 0x01
uByte bmWindowSize;
#define UI_WS_7 0x40
#define UI_WS_6 0x20
#define UI_WS_5 0x10
#define UI_WS_4 0x08
#define UI_WS_3 0x04
#define UI_WS_2 0x02
#define UI_WS_1 0x01
uByte bmMinTurnaroundTime;
#define UI_TA_0 0x80
#define UI_TA_10 0x40
#define UI_TA_50 0x20
#define UI_TA_100 0x10
#define UI_TA_500 0x08
#define UI_TA_1000 0x04
#define UI_TA_5000 0x02
#define UI_TA_10000 0x01
uWord wBaudRate;
#define UI_BR_4000000 0x0100
#define UI_BR_1152000 0x0080
#define UI_BR_576000 0x0040
#define UI_BR_115200 0x0020
#define UI_BR_57600 0x0010
#define UI_BR_38400 0x0008
#define UI_BR_19200 0x0004
#define UI_BR_9600 0x0002
#define UI_BR_2400 0x0001
uByte bmAdditionalBOFs;
#define UI_EB_0 0x80
#define UI_EB_1 0x40
#define UI_EB_2 0x20
#define UI_EB_3 0x10
#define UI_EB_6 0x08
#define UI_EB_12 0x04
#define UI_EB_24 0x02
#define UI_EB_48 0x01
uByte bIrdaSniff;
uByte bMaxUnicastList;
} UPACKED usb_irda_descriptor_t;
#define USB_IRDA_DESCRIPTOR_SIZE 12
#define UIRDA_NEBOFS 8
static struct {
int count;
int mask;
int header;
} uirda_ebofs[UIRDA_NEBOFS] = {
{ 0, UI_EB_0, UIRDA_EB_0 },
{ 1, UI_EB_1, UIRDA_EB_1 },
{ 2, UI_EB_2, UIRDA_EB_2 },
{ 3, UI_EB_3, UIRDA_EB_3 },
{ 6, UI_EB_6, UIRDA_EB_6 },
{ 12, UI_EB_12, UIRDA_EB_12 },
{ 24, UI_EB_24, UIRDA_EB_24 },
{ 48, UI_EB_48, UIRDA_EB_48 }
};
#define UIRDA_NSPEEDS 9
static struct {
int speed;
int mask;
int header;
} uirda_speeds[UIRDA_NSPEEDS] = {
{ 4000000, UI_BR_4000000, UIRDA_4000000 },
{ 1152000, UI_BR_1152000, UIRDA_1152000 },
{ 576000, UI_BR_576000, UIRDA_576000 },
{ 115200, UI_BR_115200, UIRDA_115200 },
{ 57600, UI_BR_57600, UIRDA_57600 },
{ 38400, UI_BR_38400, UIRDA_38400 },
{ 19200, UI_BR_19200, UIRDA_19200 },
{ 9600, UI_BR_9600, UIRDA_9600 },
{ 2400, UI_BR_2400, UIRDA_2400 },
};
struct uirda_softc {
USBBASEDEVICE sc_dev;
usbd_device_handle sc_udev;
usbd_interface_handle sc_iface;
struct lock sc_rd_buf_lk;
u_int8_t *sc_rd_buf;
int sc_rd_addr;
usbd_pipe_handle sc_rd_pipe;
usbd_xfer_handle sc_rd_xfer;
struct selinfo sc_rd_sel;
u_int sc_rd_count;
u_char sc_rd_err;
struct lock sc_wr_buf_lk;
u_int8_t *sc_wr_buf;
int sc_wr_addr;
usbd_xfer_handle sc_wr_xfer;
usbd_pipe_handle sc_wr_pipe;
int sc_wr_hdr;
struct selinfo sc_wr_sel;
struct device *sc_child;
struct irda_params sc_params;
usb_irda_descriptor_t sc_irdadesc;
int sc_refcnt;
char sc_dying;
};
#define UIRDA_WR_TIMEOUT 200
int uirda_open(void *h, int flag, int mode, struct lwp *l);
int uirda_close(void *h, int flag, int mode, struct lwp *l);
int uirda_read(void *h, struct uio *uio, int flag);
int uirda_write(void *h, struct uio *uio, int flag);
int uirda_set_params(void *h, struct irda_params *params);
int uirda_get_speeds(void *h, int *speeds);
int uirda_get_turnarounds(void *h, int *times);
int uirda_poll(void *h, int events, struct lwp *l);
int uirda_kqfilter(void *h, struct knote *kn);
struct irframe_methods uirda_methods = {
uirda_open, uirda_close, uirda_read, uirda_write, uirda_poll,
uirda_kqfilter, uirda_set_params, uirda_get_speeds,
uirda_get_turnarounds
};
void uirda_rd_cb(usbd_xfer_handle xfer, usbd_private_handle priv,
usbd_status status);
usbd_status uirda_start_read(struct uirda_softc *sc);
/*
* These devices don't quite follow the spec. Speed changing is broken
* and they don't handle windows.
* But we change speed in a safe way, and don't use windows now.
* Some devices also seem to have an interrupt pipe that can be ignored.
*
* Table information taken from Linux driver.
*/
Static const struct usb_devno uirda_devs[] = {
{ USB_VENDOR_ACTISYS, USB_PRODUCT_ACTISYS_IR2000U },
{ USB_VENDOR_EXTENDED, USB_PRODUCT_EXTENDED_XTNDACCESS },
{ USB_VENDOR_KAWATSU, USB_PRODUCT_KAWATSU_KC180 },
};
#define uirda_lookup(v, p) (usb_lookup(uirda_devs, v, p))
USB_DECLARE_DRIVER(uirda);
USB_MATCH(uirda)
{
USB_MATCH_START(uirda, uaa);
usb_interface_descriptor_t *id;
DPRINTFN(50,("uirda_match\n"));
if (uaa->iface == NULL)
return (UMATCH_NONE);
if (uirda_lookup(uaa->vendor, uaa->product) != NULL)
return (UMATCH_VENDOR_PRODUCT);
id = usbd_get_interface_descriptor(uaa->iface);
if (id != NULL &&
id->bInterfaceClass == UICLASS_APPL_SPEC &&
id->bInterfaceSubClass == UISUBCLASS_IRDA &&
id->bInterfaceProtocol == UIPROTO_IRDA)
return (UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO);
return (UMATCH_NONE);
}
USB_ATTACH(uirda)
{
USB_ATTACH_START(uirda, sc, uaa);
usbd_device_handle dev = uaa->device;
usbd_interface_handle iface = uaa->iface;
char *devinfop;
usb_endpoint_descriptor_t *ed;
usbd_status err;
u_int8_t epcount;
u_int specrev;
int i;
struct ir_attach_args ia;
DPRINTFN(10,("uirda_attach: sc=%p\n", sc));
devinfop = usbd_devinfo_alloc(dev, 0);
USB_ATTACH_SETUP;
printf("%s: %s\n", USBDEVNAME(sc->sc_dev), devinfop);
usbd_devinfo_free(devinfop);
sc->sc_udev = dev;
sc->sc_iface = iface;
epcount = 0;
(void)usbd_endpoint_count(iface, &epcount);
sc->sc_rd_addr = -1;
sc->sc_wr_addr = -1;
for (i = 0; i < epcount; i++) {
ed = usbd_interface2endpoint_descriptor(iface, i);
if (ed == NULL) {
printf("%s: couldn't get ep %d\n",
USBDEVNAME(sc->sc_dev), i);
USB_ATTACH_ERROR_RETURN;
}
if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
sc->sc_rd_addr = ed->bEndpointAddress;
} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
sc->sc_wr_addr = ed->bEndpointAddress;
}
}
if (sc->sc_rd_addr == -1 || sc->sc_wr_addr == -1) {
printf("%s: missing endpoint\n", USBDEVNAME(sc->sc_dev));
USB_ATTACH_ERROR_RETURN;
}
/* Get the IrDA descriptor */
err = usbd_get_desc(sc->sc_udev, UDESC_IRDA, 0,
USB_IRDA_DESCRIPTOR_SIZE, &sc->sc_irdadesc);
if (err) {
/* maybe it's embedded in the config desc? */
const void *d = usb_find_desc(sc->sc_udev, UDESC_IRDA,
USBD_SUBTYPE_ANY);
if (d == NULL) {
printf("%s: Cannot get IrDA descriptor\n",
USBDEVNAME(sc->sc_dev));
USB_ATTACH_ERROR_RETURN;
}
memcpy(&sc->sc_irdadesc, d, USB_IRDA_DESCRIPTOR_SIZE);
}
DPRINTF(("uirda_attach: bmDataSize=0x%02x bmWindowSize=0x%02x "
"bmMinTurnaroundTime=0x%02x wBaudRate=0x%04x "
"bmAdditionalBOFs=0x%02x bIrdaSniff=%d bMaxUnicastList=%d\n",
sc->sc_irdadesc.bmDataSize,
sc->sc_irdadesc.bmWindowSize,
sc->sc_irdadesc.bmMinTurnaroundTime,
UGETW(sc->sc_irdadesc.wBaudRate),
sc->sc_irdadesc.bmAdditionalBOFs,
sc->sc_irdadesc.bIrdaSniff,
sc->sc_irdadesc.bMaxUnicastList));
specrev = UGETW(sc->sc_irdadesc.bcdSpecRevision);
printf("%s: USB-IrDA protocol version %x.%02x\n",
USBDEVNAME(sc->sc_dev), specrev >> 8, specrev & 0xff);
DPRINTFN(10, ("uirda_attach: %p\n", sc->sc_udev));
usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev,
USBDEV(sc->sc_dev));
lockinit(&sc->sc_wr_buf_lk, PZERO, "iirwrl", 0, 0);
lockinit(&sc->sc_rd_buf_lk, PZERO, "uirrdl", 0, 0);
ia.ia_type = IR_TYPE_IRFRAME;
ia.ia_methods = &uirda_methods;
ia.ia_handle = sc;
sc->sc_child = config_found(self, &ia, ir_print);
USB_ATTACH_SUCCESS_RETURN;
}
USB_DETACH(uirda)
{
USB_DETACH_START(uirda, sc);
int s;
int rv = 0;
DPRINTF(("uirda_detach: sc=%p flags=%d\n", sc, flags));
sc->sc_dying = 1;
/* Abort all pipes. Causes processes waiting for transfer to wake. */
if (sc->sc_rd_pipe != NULL) {
usbd_abort_pipe(sc->sc_rd_pipe);
usbd_close_pipe(sc->sc_rd_pipe);
sc->sc_rd_pipe = NULL;
}
if (sc->sc_wr_pipe != NULL) {
usbd_abort_pipe(sc->sc_wr_pipe);
usbd_close_pipe(sc->sc_wr_pipe);
sc->sc_wr_pipe = NULL;
}
wakeup(&sc->sc_rd_count);
s = splusb();
if (--sc->sc_refcnt >= 0) {
/* Wait for processes to go away. */
usb_detach_wait(USBDEV(sc->sc_dev));
}
splx(s);
if (sc->sc_child != NULL) {
rv = config_detach(sc->sc_child, flags);
sc->sc_child = NULL;
}
usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev,
USBDEV(sc->sc_dev));
return (rv);
}
int
uirda_activate(device_ptr_t self, enum devact act)
{
struct uirda_softc *sc = (struct uirda_softc *)self;
int error = 0;
switch (act) {
case DVACT_ACTIVATE:
return (EOPNOTSUPP);
break;
case DVACT_DEACTIVATE:
sc->sc_dying = 1;
if (sc->sc_child != NULL)
error = config_deactivate(sc->sc_child);
break;
}
return (error);
}
int
uirda_open(void *h, int flag, int mode,
struct lwp *l)
{
struct uirda_softc *sc = h;
int error;
usbd_status err;
DPRINTF(("%s: sc=%p\n", __func__, sc));
err = usbd_open_pipe(sc->sc_iface, sc->sc_rd_addr, 0, &sc->sc_rd_pipe);
if (err) {
error = EIO;
goto bad1;
}
err = usbd_open_pipe(sc->sc_iface, sc->sc_wr_addr, 0, &sc->sc_wr_pipe);
if (err) {
error = EIO;
goto bad2;
}
sc->sc_rd_xfer = usbd_alloc_xfer(sc->sc_udev);
if (sc->sc_rd_xfer == NULL) {
error = ENOMEM;
goto bad3;
}
sc->sc_wr_xfer = usbd_alloc_xfer(sc->sc_udev);
if (sc->sc_wr_xfer == NULL) {
error = ENOMEM;
goto bad4;
}
sc->sc_rd_buf = usbd_alloc_buffer(sc->sc_rd_xfer,
IRDA_MAX_FRAME_SIZE + UIRDA_INPUT_HEADER_SIZE);
if (sc->sc_rd_buf == NULL) {
error = ENOMEM;
goto bad5;
}
sc->sc_wr_buf = usbd_alloc_buffer(sc->sc_wr_xfer,
IRDA_MAX_FRAME_SIZE + UIRDA_OUTPUT_HEADER_SIZE);
if (sc->sc_wr_buf == NULL) {
error = ENOMEM;
goto bad5;
}
sc->sc_rd_count = 0;
sc->sc_rd_err = 0;
sc->sc_params.speed = 0;
sc->sc_params.ebofs = 0;
sc->sc_params.maxsize = IRDA_MAX_FRAME_SIZE;
sc->sc_wr_hdr = -1;
err = uirda_start_read(sc);
/* XXX check err */
return (0);
bad5:
usbd_free_xfer(sc->sc_wr_xfer);
sc->sc_wr_xfer = NULL;
bad4:
usbd_free_xfer(sc->sc_rd_xfer);
sc->sc_rd_xfer = NULL;
bad3:
usbd_close_pipe(sc->sc_wr_pipe);
sc->sc_wr_pipe = NULL;
bad2:
usbd_close_pipe(sc->sc_rd_pipe);
sc->sc_rd_pipe = NULL;
bad1:
return (error);
}
int
uirda_close(void *h, int flag, int mode,
struct lwp *l)
{
struct uirda_softc *sc = h;
DPRINTF(("%s: sc=%p\n", __func__, sc));
if (sc->sc_rd_pipe != NULL) {
usbd_abort_pipe(sc->sc_rd_pipe);
usbd_close_pipe(sc->sc_rd_pipe);
sc->sc_rd_pipe = NULL;
}
if (sc->sc_wr_pipe != NULL) {
usbd_abort_pipe(sc->sc_wr_pipe);
usbd_close_pipe(sc->sc_wr_pipe);
sc->sc_wr_pipe = NULL;
}
if (sc->sc_rd_xfer != NULL) {
usbd_free_xfer(sc->sc_rd_xfer);
sc->sc_rd_xfer = NULL;
sc->sc_rd_buf = NULL;
}
if (sc->sc_wr_xfer != NULL) {
usbd_free_xfer(sc->sc_wr_xfer);
sc->sc_wr_xfer = NULL;
sc->sc_wr_buf = NULL;
}
return (0);
}
int
uirda_read(void *h, struct uio *uio, int flag)
{
struct uirda_softc *sc = h;
usbd_status err;
int s;
int error;
u_int n;
DPRINTFN(1,("%s: sc=%p\n", __func__, sc));
if (sc->sc_dying)
return (EIO);
#ifdef DIAGNOSTIC
if (sc->sc_rd_buf == NULL)
return (EINVAL);
#endif
sc->sc_refcnt++;
do {
s = splusb();
while (sc->sc_rd_count == 0) {
DPRINTFN(5,("uirda_read: calling tsleep()\n"));
error = tsleep(&sc->sc_rd_count, PZERO | PCATCH,
"uirdrd", 0);
if (sc->sc_dying)
error = EIO;
if (error) {
splx(s);
DPRINTF(("uirda_read: tsleep() = %d\n", error));
goto ret;
}
}
splx(s);
lockmgr(&sc->sc_rd_buf_lk, LK_EXCLUSIVE, NULL);
n = sc->sc_rd_count - UIRDA_INPUT_HEADER_SIZE;
DPRINTFN(1,("%s: sc=%p n=%u, hdr=0x%02x\n", __func__,
sc, n, sc->sc_rd_buf[0]));
if (n > uio->uio_resid)
error = EINVAL;
else
error = uiomove(sc->sc_rd_buf+UIRDA_INPUT_HEADER_SIZE,
n, uio);
sc->sc_rd_count = 0;
lockmgr(&sc->sc_rd_buf_lk, LK_RELEASE, NULL);
err = uirda_start_read(sc);
/* XXX check err */
} while (n == 0);
DPRINTFN(1,("uirda_read: return %d\n", error));
ret:
if (--sc->sc_refcnt < 0)
usb_detach_wakeup(USBDEV(sc->sc_dev));
return (error);
}
int
uirda_write(void *h, struct uio *uio, int flag)
{
struct uirda_softc *sc = h;
usbd_status err;
u_int32_t n;
int error = 0;
DPRINTFN(1,("%s: sc=%p\n", __func__, sc));
if (sc->sc_dying)
return (EIO);
#ifdef DIAGNOSTIC
if (sc->sc_wr_buf == NULL)
return (EINVAL);
#endif
n = uio->uio_resid;
if (n > sc->sc_params.maxsize)
return (EINVAL);
sc->sc_refcnt++;
lockmgr(&sc->sc_wr_buf_lk, LK_EXCLUSIVE, NULL);
sc->sc_wr_buf[0] = UIRDA_EB_NO_CHANGE | UIRDA_NO_SPEED;
error = uiomove(sc->sc_wr_buf + UIRDA_OUTPUT_HEADER_SIZE, n, uio);
if (!error) {
DPRINTFN(1, ("uirdawrite: transfer %d bytes\n", n));
n++;
err = usbd_bulk_transfer(sc->sc_wr_xfer, sc->sc_wr_pipe,
USBD_FORCE_SHORT_XFER | USBD_NO_COPY,
UIRDA_WR_TIMEOUT,
sc->sc_wr_buf, &n, "uirdawr");
DPRINTFN(2, ("uirdawrite: err=%d\n", err));
if (err) {
if (err == USBD_INTERRUPTED)
error = EINTR;
else if (err == USBD_TIMEOUT)
error = ETIMEDOUT;
else
error = EIO;
}
}
lockmgr(&sc->sc_wr_buf_lk, LK_RELEASE, NULL);
if (--sc->sc_refcnt < 0)
usb_detach_wakeup(USBDEV(sc->sc_dev));
DPRINTFN(1,("%s: sc=%p done\n", __func__, sc));
return (error);
}
int
uirda_poll(void *h, int events, struct lwp *l)
{
struct uirda_softc *sc = h;
int revents = 0;
int s;
DPRINTFN(1,("%s: sc=%p\n", __func__, sc));
s = splusb();
if (events & (POLLOUT | POLLWRNORM))
revents |= events & (POLLOUT | POLLWRNORM);
if (events & (POLLIN | POLLRDNORM)) {
if (sc->sc_rd_count != 0) {
DPRINTFN(2,("%s: have data\n", __func__));
revents |= events & (POLLIN | POLLRDNORM);
} else {
DPRINTFN(2,("%s: recording select\n", __func__));
selrecord(l, &sc->sc_rd_sel);
}
}
splx(s);
return (revents);
}
static void
filt_uirdardetach(struct knote *kn)
{
struct uirda_softc *sc = kn->kn_hook;
int s;
s = splusb();
SLIST_REMOVE(&sc->sc_rd_sel.sel_klist, kn, knote, kn_selnext);
splx(s);
}
static int
filt_uirdaread(struct knote *kn, long hint)
{
struct uirda_softc *sc = kn->kn_hook;
kn->kn_data = sc->sc_rd_count;
return (kn->kn_data > 0);
}
static void
filt_uirdawdetach(struct knote *kn)
{
struct uirda_softc *sc = kn->kn_hook;
int s;
s = splusb();
SLIST_REMOVE(&sc->sc_wr_sel.sel_klist, kn, knote, kn_selnext);
splx(s);
}
static const struct filterops uirdaread_filtops =
{ 1, NULL, filt_uirdardetach, filt_uirdaread };
static const struct filterops uirdawrite_filtops =
{ 1, NULL, filt_uirdawdetach, filt_seltrue };
int
uirda_kqfilter(void *h, struct knote *kn)
{
struct uirda_softc *sc = kn->kn_hook;
struct klist *klist;
int s;
switch (kn->kn_filter) {
case EVFILT_READ:
klist = &sc->sc_rd_sel.sel_klist;
kn->kn_fop = &uirdaread_filtops;
break;
case EVFILT_WRITE:
klist = &sc->sc_wr_sel.sel_klist;
kn->kn_fop = &uirdawrite_filtops;
break;
default:
return (1);
}
kn->kn_hook = sc;
s = splusb();
SLIST_INSERT_HEAD(klist, kn, kn_selnext);
splx(s);
return (0);
}
int
uirda_set_params(void *h, struct irda_params *p)
{
struct uirda_softc *sc = h;
usbd_status err;
int i;
u_int8_t hdr;
u_int32_t n;
u_int mask;
DPRINTF(("%s: sc=%p, speed=%d ebofs=%d maxsize=%d\n", __func__,
sc, p->speed, p->ebofs, p->maxsize));
if (sc->sc_dying)
return (EIO);
hdr = 0;
if (p->ebofs != sc->sc_params.ebofs) {
/* round up ebofs */
mask = sc->sc_irdadesc.bmAdditionalBOFs;
for (i = 0; i < UIRDA_NEBOFS; i++) {
if ((mask & uirda_ebofs[i].mask) &&
uirda_ebofs[i].count >= p->ebofs) {
hdr = uirda_ebofs[i].header;
goto found1;
}
}
/* no good value found */
return (EINVAL);
found1:
DPRINTF(("uirda_set_params: ebofs hdr=0x%02x\n", hdr));
;
}
if (hdr != 0 || p->speed != sc->sc_params.speed) {
/* find speed */
mask = UGETW(sc->sc_irdadesc.wBaudRate);
for (i = 0; i < UIRDA_NSPEEDS; i++) {
if ((mask & uirda_speeds[i].mask) &&
uirda_speeds[i].speed == p->speed) {
hdr |= uirda_speeds[i].header;
goto found2;
}
}
/* no good value found */
return (EINVAL);
found2:
DPRINTF(("uirda_set_params: speed hdr=0x%02x\n", hdr));
;
}
if (p->maxsize != sc->sc_params.maxsize) {
if (p->maxsize > IRDA_MAX_FRAME_SIZE)
return (EINVAL);
sc->sc_params.maxsize = p->maxsize;
#if 0
DPRINTF(("%s: new buffers, old size=%d\n", __func__,
sc->sc_params.maxsize));
if (p->maxsize > 10000 || p < 0) /* XXX */
return (EINVAL);
/* Change the write buffer */
lockmgr(&sc->sc_wr_buf_lk, LK_EXCLUSIVE, NULL);
if (sc->sc_wr_buf != NULL)
usbd_free_buffer(sc->sc_wr_xfer);
sc->sc_wr_buf = usbd_alloc_buffer(sc->sc_wr_xfer, p->maxsize+1);
lockmgr(&sc->sc_wr_buf_lk, LK_RELEASE, NULL);
if (sc->sc_wr_buf == NULL)
return (ENOMEM);
/* Change the read buffer */
lockmgr(&sc->sc_rd_buf_lk, LK_EXCLUSIVE, NULL);
usbd_abort_pipe(sc->sc_rd_pipe);
if (sc->sc_rd_buf != NULL)
usbd_free_buffer(sc->sc_rd_xfer);
sc->sc_rd_buf = usbd_alloc_buffer(sc->sc_rd_xfer, p->maxsize+1);
sc->sc_rd_count = 0;
if (sc->sc_rd_buf == NULL) {
lockmgr(&sc->sc_rd_buf_lk, LK_RELEASE, NULL);
return (ENOMEM);
}
sc->sc_params.maxsize = p->maxsize;
err = uirda_start_read(sc); /* XXX check */
lockmgr(&sc->sc_rd_buf_lk, LK_RELEASE, NULL);
#endif
}
if (hdr != 0 && hdr != sc->sc_wr_hdr) {
/*
* A change has occurred, transmit a 0 length frame with
* the new settings. The 0 length frame is not sent to the
* device.
*/
DPRINTF(("%s: sc=%p setting header 0x%02x\n",
__func__, sc, hdr));
sc->sc_wr_hdr = hdr;
lockmgr(&sc->sc_wr_buf_lk, LK_EXCLUSIVE, NULL);
sc->sc_wr_buf[0] = hdr;
n = UIRDA_OUTPUT_HEADER_SIZE;
err = usbd_bulk_transfer(sc->sc_wr_xfer, sc->sc_wr_pipe,
USBD_FORCE_SHORT_XFER | USBD_NO_COPY,
UIRDA_WR_TIMEOUT, sc->sc_wr_buf, &n, "uirdast");
if (err) {
printf("%s: set failed, err=%d\n",
USBDEVNAME(sc->sc_dev), err);
usbd_clear_endpoint_stall(sc->sc_wr_pipe);
}
lockmgr(&sc->sc_wr_buf_lk, LK_RELEASE, NULL);
}
sc->sc_params = *p;
return (0);
}
int
uirda_get_speeds(void *h, int *speeds)
{
struct uirda_softc *sc = h;
u_int isp;
u_int usp;
DPRINTF(("%s: sc=%p\n", __func__, sc));
if (sc->sc_dying)
return (EIO);
usp = UGETW(sc->sc_irdadesc.wBaudRate);
isp = 0;
if (usp & UI_BR_4000000) isp |= IRDA_SPEED_4000000;
if (usp & UI_BR_1152000) isp |= IRDA_SPEED_1152000;
if (usp & UI_BR_576000) isp |= IRDA_SPEED_576000;
if (usp & UI_BR_115200) isp |= IRDA_SPEED_115200;
if (usp & UI_BR_57600) isp |= IRDA_SPEED_57600;
if (usp & UI_BR_38400) isp |= IRDA_SPEED_38400;
if (usp & UI_BR_19200) isp |= IRDA_SPEED_19200;
if (usp & UI_BR_9600) isp |= IRDA_SPEED_9600;
if (usp & UI_BR_2400) isp |= IRDA_SPEED_2400;
*speeds = isp;
return (0);
}
int
uirda_get_turnarounds(void *h, int *turnarounds)
{
struct uirda_softc *sc = h;
u_int ita;
u_int uta;
DPRINTF(("%s: sc=%p\n", __func__, sc));
if (sc->sc_dying)
return (EIO);
uta = sc->sc_irdadesc.bmMinTurnaroundTime;
ita = 0;
if (uta & UI_TA_0) ita |= IRDA_TURNT_0;
if (uta & UI_TA_10) ita |= IRDA_TURNT_10;
if (uta & UI_TA_50) ita |= IRDA_TURNT_50;
if (uta & UI_TA_100) ita |= IRDA_TURNT_100;
if (uta & UI_TA_500) ita |= IRDA_TURNT_500;
if (uta & UI_TA_1000) ita |= IRDA_TURNT_1000;
if (uta & UI_TA_5000) ita |= IRDA_TURNT_5000;
if (uta & UI_TA_10000) ita |= IRDA_TURNT_10000;
*turnarounds = ita;
return (0);
}
void
uirda_rd_cb(usbd_xfer_handle xfer, usbd_private_handle priv,
usbd_status status)
{
struct uirda_softc *sc = priv;
u_int32_t size;
DPRINTFN(1,("%s: sc=%p\n", __func__, sc));
if (status == USBD_CANCELLED) /* this is normal */
return;
if (status) {
size = UIRDA_INPUT_HEADER_SIZE;
sc->sc_rd_err = 1;
} else {
usbd_get_xfer_status(xfer, NULL, NULL, &size, NULL);
}
DPRINTFN(1,("%s: sc=%p size=%u, err=%d\n", __func__, sc, size,
sc->sc_rd_err));
sc->sc_rd_count = size;
wakeup(&sc->sc_rd_count); /* XXX should use flag */
selnotify(&sc->sc_rd_sel, 0);
}
usbd_status
uirda_start_read(struct uirda_softc *sc)
{
usbd_status err;
DPRINTFN(1,("%s: sc=%p, size=%d\n", __func__, sc,
sc->sc_params.maxsize + UIRDA_INPUT_HEADER_SIZE));
if (sc->sc_dying)
return (USBD_IOERROR);
if (sc->sc_rd_err) {
sc->sc_rd_err = 0;
DPRINTF(("uirda_start_read: clear stall\n"));
usbd_clear_endpoint_stall(sc->sc_rd_pipe);
}
usbd_setup_xfer(sc->sc_rd_xfer, sc->sc_rd_pipe, sc, sc->sc_rd_buf,
sc->sc_params.maxsize + UIRDA_INPUT_HEADER_SIZE,
USBD_SHORT_XFER_OK | USBD_NO_COPY,
USBD_NO_TIMEOUT, uirda_rd_cb);
err = usbd_transfer(sc->sc_rd_xfer);
if (err != USBD_IN_PROGRESS) {
DPRINTF(("uirda_start_read: err=%d\n", err));
return (err);
}
return (USBD_NORMAL_COMPLETION);
}
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