freebsd-skq/sys/dev/usb/usbdi_util.c
2003-07-14 20:19:21 +00:00

506 lines
14 KiB
C

/* $NetBSD: usbdi_util.c,v 1.36 2001/11/13 06:24:57 lukem Exp $ */
/* $FreeBSD$ */
/*
* Copyright (c) 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Lennart Augustsson (lennart@augustsson.net) at
* Carlstedt Research & Technology.
*
* 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/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#if defined(__NetBSD__) || defined(__OpenBSD__)
#include <sys/proc.h>
#include <sys/device.h>
#elif defined(__FreeBSD__)
#include <sys/bus.h>
#endif
#include <dev/usb/usb.h>
#include <dev/usb/usbhid.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usbdi_util.h>
#ifdef USB_DEBUG
#define DPRINTF(x) if (usbdebug) logprintf x
#define DPRINTFN(n,x) if (usbdebug>(n)) logprintf x
extern int usbdebug;
#else
#define DPRINTF(x)
#define DPRINTFN(n,x)
#endif
usbd_status
usbd_get_desc(usbd_device_handle dev, int type, int index, int len, void *desc)
{
usb_device_request_t req;
DPRINTFN(3,("usbd_get_desc: type=%d, index=%d, len=%d\n",
type, index, len));
req.bmRequestType = UT_READ_DEVICE;
req.bRequest = UR_GET_DESCRIPTOR;
USETW2(req.wValue, type, index);
USETW(req.wIndex, 0);
USETW(req.wLength, len);
return (usbd_do_request(dev, &req, desc));
}
usbd_status
usbd_get_config_desc(usbd_device_handle dev, int confidx,
usb_config_descriptor_t *d)
{
usbd_status err;
DPRINTFN(3,("usbd_get_config_desc: confidx=%d\n", confidx));
err = usbd_get_desc(dev, UDESC_CONFIG, confidx,
USB_CONFIG_DESCRIPTOR_SIZE, d);
if (err)
return (err);
if (d->bDescriptorType != UDESC_CONFIG) {
DPRINTFN(-1,("usbd_get_config_desc: confidx=%d, bad desc "
"len=%d type=%d\n",
confidx, d->bLength, d->bDescriptorType));
return (USBD_INVAL);
}
return (USBD_NORMAL_COMPLETION);
}
usbd_status
usbd_get_config_desc_full(usbd_device_handle dev, int conf, void *d, int size)
{
DPRINTFN(3,("usbd_get_config_desc_full: conf=%d\n", conf));
return (usbd_get_desc(dev, UDESC_CONFIG, conf, size, d));
}
usbd_status
usbd_get_device_desc(usbd_device_handle dev, usb_device_descriptor_t *d)
{
DPRINTFN(3,("usbd_get_device_desc:\n"));
return (usbd_get_desc(dev, UDESC_DEVICE,
0, USB_DEVICE_DESCRIPTOR_SIZE, d));
}
usbd_status
usbd_get_device_status(usbd_device_handle dev, usb_status_t *st)
{
usb_device_request_t req;
req.bmRequestType = UT_READ_DEVICE;
req.bRequest = UR_GET_STATUS;
USETW(req.wValue, 0);
USETW(req.wIndex, 0);
USETW(req.wLength, sizeof(usb_status_t));
return (usbd_do_request(dev, &req, st));
}
usbd_status
usbd_get_hub_status(usbd_device_handle dev, usb_hub_status_t *st)
{
usb_device_request_t req;
req.bmRequestType = UT_READ_CLASS_DEVICE;
req.bRequest = UR_GET_STATUS;
USETW(req.wValue, 0);
USETW(req.wIndex, 0);
USETW(req.wLength, sizeof(usb_hub_status_t));
return (usbd_do_request(dev, &req, st));
}
usbd_status
usbd_set_address(usbd_device_handle dev, int addr)
{
usb_device_request_t req;
req.bmRequestType = UT_WRITE_DEVICE;
req.bRequest = UR_SET_ADDRESS;
USETW(req.wValue, addr);
USETW(req.wIndex, 0);
USETW(req.wLength, 0);
return usbd_do_request(dev, &req, 0);
}
usbd_status
usbd_get_port_status(usbd_device_handle dev, int port, usb_port_status_t *ps)
{
usb_device_request_t req;
req.bmRequestType = UT_READ_CLASS_OTHER;
req.bRequest = UR_GET_STATUS;
USETW(req.wValue, 0);
USETW(req.wIndex, port);
USETW(req.wLength, sizeof *ps);
return (usbd_do_request(dev, &req, ps));
}
usbd_status
usbd_clear_hub_feature(usbd_device_handle dev, int sel)
{
usb_device_request_t req;
req.bmRequestType = UT_WRITE_CLASS_DEVICE;
req.bRequest = UR_CLEAR_FEATURE;
USETW(req.wValue, sel);
USETW(req.wIndex, 0);
USETW(req.wLength, 0);
return (usbd_do_request(dev, &req, 0));
}
usbd_status
usbd_set_hub_feature(usbd_device_handle dev, int sel)
{
usb_device_request_t req;
req.bmRequestType = UT_WRITE_CLASS_DEVICE;
req.bRequest = UR_SET_FEATURE;
USETW(req.wValue, sel);
USETW(req.wIndex, 0);
USETW(req.wLength, 0);
return (usbd_do_request(dev, &req, 0));
}
usbd_status
usbd_clear_port_feature(usbd_device_handle dev, int port, int sel)
{
usb_device_request_t req;
req.bmRequestType = UT_WRITE_CLASS_OTHER;
req.bRequest = UR_CLEAR_FEATURE;
USETW(req.wValue, sel);
USETW(req.wIndex, port);
USETW(req.wLength, 0);
return (usbd_do_request(dev, &req, 0));
}
usbd_status
usbd_set_port_feature(usbd_device_handle dev, int port, int sel)
{
usb_device_request_t req;
req.bmRequestType = UT_WRITE_CLASS_OTHER;
req.bRequest = UR_SET_FEATURE;
USETW(req.wValue, sel);
USETW(req.wIndex, port);
USETW(req.wLength, 0);
return (usbd_do_request(dev, &req, 0));
}
usbd_status
usbd_set_protocol(usbd_interface_handle iface, int report)
{
usb_interface_descriptor_t *id = usbd_get_interface_descriptor(iface);
usbd_device_handle dev;
usb_device_request_t req;
DPRINTFN(4, ("usbd_set_protocol: iface=%p, report=%d, endpt=%d\n",
iface, report, id->bInterfaceNumber));
if (id == NULL)
return (USBD_IOERROR);
usbd_interface2device_handle(iface, &dev);
req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
req.bRequest = UR_SET_PROTOCOL;
USETW(req.wValue, report);
USETW(req.wIndex, id->bInterfaceNumber);
USETW(req.wLength, 0);
return (usbd_do_request(dev, &req, 0));
}
usbd_status
usbd_set_report(usbd_interface_handle iface, int type, int id, void *data,
int len)
{
usb_interface_descriptor_t *ifd = usbd_get_interface_descriptor(iface);
usbd_device_handle dev;
usb_device_request_t req;
DPRINTFN(4, ("usbd_set_report: len=%d\n", len));
if (ifd == NULL)
return (USBD_IOERROR);
usbd_interface2device_handle(iface, &dev);
req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
req.bRequest = UR_SET_REPORT;
USETW2(req.wValue, type, id);
USETW(req.wIndex, ifd->bInterfaceNumber);
USETW(req.wLength, len);
return (usbd_do_request(dev, &req, data));
}
usbd_status
usbd_set_report_async(usbd_interface_handle iface, int type, int id, void *data,
int len)
{
usb_interface_descriptor_t *ifd = usbd_get_interface_descriptor(iface);
usbd_device_handle dev;
usb_device_request_t req;
DPRINTFN(4, ("usbd_set_report_async: len=%d\n", len));
if (ifd == NULL)
return (USBD_IOERROR);
usbd_interface2device_handle(iface, &dev);
req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
req.bRequest = UR_SET_REPORT;
USETW2(req.wValue, type, id);
USETW(req.wIndex, ifd->bInterfaceNumber);
USETW(req.wLength, len);
return (usbd_do_request_async(dev, &req, data));
}
usbd_status
usbd_get_report(usbd_interface_handle iface, int type, int id, void *data,
int len)
{
usb_interface_descriptor_t *ifd = usbd_get_interface_descriptor(iface);
usbd_device_handle dev;
usb_device_request_t req;
DPRINTFN(4, ("usbd_set_report: len=%d\n", len));
if (id == 0)
return (USBD_IOERROR);
usbd_interface2device_handle(iface, &dev);
req.bmRequestType = UT_READ_CLASS_INTERFACE;
req.bRequest = UR_GET_REPORT;
USETW2(req.wValue, type, id);
USETW(req.wIndex, ifd->bInterfaceNumber);
USETW(req.wLength, len);
return (usbd_do_request(dev, &req, data));
}
usbd_status
usbd_set_idle(usbd_interface_handle iface, int duration, int id)
{
usb_interface_descriptor_t *ifd = usbd_get_interface_descriptor(iface);
usbd_device_handle dev;
usb_device_request_t req;
DPRINTFN(4, ("usbd_set_idle: %d %d\n", duration, id));
if (ifd == NULL)
return (USBD_IOERROR);
usbd_interface2device_handle(iface, &dev);
req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
req.bRequest = UR_SET_IDLE;
USETW2(req.wValue, duration, id);
USETW(req.wIndex, ifd->bInterfaceNumber);
USETW(req.wLength, 0);
return (usbd_do_request(dev, &req, 0));
}
usbd_status
usbd_get_report_descriptor(usbd_device_handle dev, int ifcno,
int size, void *d)
{
usb_device_request_t req;
req.bmRequestType = UT_READ_INTERFACE;
req.bRequest = UR_GET_DESCRIPTOR;
USETW2(req.wValue, UDESC_REPORT, 0); /* report id should be 0 */
USETW(req.wIndex, ifcno);
USETW(req.wLength, size);
return (usbd_do_request(dev, &req, d));
}
usb_hid_descriptor_t *
usbd_get_hid_descriptor(usbd_interface_handle ifc)
{
usb_interface_descriptor_t *idesc = usbd_get_interface_descriptor(ifc);
usbd_device_handle dev;
usb_config_descriptor_t *cdesc;
usb_hid_descriptor_t *hd;
char *p, *end;
if (idesc == NULL)
return (0);
usbd_interface2device_handle(ifc, &dev);
cdesc = usbd_get_config_descriptor(dev);
p = (char *)idesc + idesc->bLength;
end = (char *)cdesc + UGETW(cdesc->wTotalLength);
for (; p < end; p += hd->bLength) {
hd = (usb_hid_descriptor_t *)p;
if (p + hd->bLength <= end && hd->bDescriptorType == UDESC_HID)
return (hd);
if (hd->bDescriptorType == UDESC_INTERFACE)
break;
}
return (0);
}
usbd_status
usbd_read_report_desc(usbd_interface_handle ifc, void **descp, int *sizep,
usb_malloc_type mem)
{
usb_interface_descriptor_t *id;
usb_hid_descriptor_t *hid;
usbd_device_handle dev;
usbd_status err;
usbd_interface2device_handle(ifc, &dev);
id = usbd_get_interface_descriptor(ifc);
if (id == NULL)
return (USBD_INVAL);
hid = usbd_get_hid_descriptor(ifc);
if (hid == NULL)
return (USBD_IOERROR);
*sizep = UGETW(hid->descrs[0].wDescriptorLength);
*descp = malloc(*sizep, mem, M_NOWAIT);
if (*descp == NULL)
return (USBD_NOMEM);
err = usbd_get_report_descriptor(dev, id->bInterfaceNumber,
*sizep, *descp);
if (err) {
free(*descp, mem);
*descp = NULL;
return (err);
}
return (USBD_NORMAL_COMPLETION);
}
usbd_status
usbd_get_config(usbd_device_handle dev, u_int8_t *conf)
{
usb_device_request_t req;
req.bmRequestType = UT_READ_DEVICE;
req.bRequest = UR_GET_CONFIG;
USETW(req.wValue, 0);
USETW(req.wIndex, 0);
USETW(req.wLength, 1);
return (usbd_do_request(dev, &req, conf));
}
Static void usbd_bulk_transfer_cb(usbd_xfer_handle xfer,
usbd_private_handle priv, usbd_status status);
Static void
usbd_bulk_transfer_cb(usbd_xfer_handle xfer, usbd_private_handle priv,
usbd_status status)
{
wakeup(xfer);
}
usbd_status
usbd_bulk_transfer(usbd_xfer_handle xfer, usbd_pipe_handle pipe,
u_int16_t flags, u_int32_t timeout, void *buf,
u_int32_t *size, char *lbl)
{
usbd_status err;
int s, error;
usbd_setup_xfer(xfer, pipe, 0, buf, *size,
flags, timeout, usbd_bulk_transfer_cb);
DPRINTFN(1, ("usbd_bulk_transfer: start transfer %d bytes\n", *size));
s = splusb(); /* don't want callback until tsleep() */
err = usbd_transfer(xfer);
if (err != USBD_IN_PROGRESS) {
splx(s);
return (err);
}
error = tsleep(xfer, PZERO | PCATCH, lbl, 0);
splx(s);
if (error) {
DPRINTF(("usbd_bulk_transfer: tsleep=%d\n", error));
usbd_abort_pipe(pipe);
return (USBD_INTERRUPTED);
}
usbd_get_xfer_status(xfer, NULL, NULL, size, &err);
DPRINTFN(1,("usbd_bulk_transfer: transferred %d\n", *size));
if (err) {
DPRINTF(("usbd_bulk_transfer: error=%d\n", err));
usbd_clear_endpoint_stall(pipe);
}
return (err);
}
Static void usbd_intr_transfer_cb(usbd_xfer_handle xfer,
usbd_private_handle priv, usbd_status status);
Static void
usbd_intr_transfer_cb(usbd_xfer_handle xfer, usbd_private_handle priv,
usbd_status status)
{
wakeup(xfer);
}
usbd_status
usbd_intr_transfer(usbd_xfer_handle xfer, usbd_pipe_handle pipe,
u_int16_t flags, u_int32_t timeout, void *buf,
u_int32_t *size, char *lbl)
{
usbd_status err;
int s, error;
usbd_setup_xfer(xfer, pipe, 0, buf, *size,
flags, timeout, usbd_intr_transfer_cb);
DPRINTFN(1, ("usbd_intr_transfer: start transfer %d bytes\n", *size));
s = splusb(); /* don't want callback until tsleep() */
err = usbd_transfer(xfer);
if (err != USBD_IN_PROGRESS) {
splx(s);
return (err);
}
error = tsleep(xfer, PZERO | PCATCH, lbl, 0);
splx(s);
if (error) {
DPRINTF(("usbd_intr_transfer: tsleep=%d\n", error));
usbd_abort_pipe(pipe);
return (USBD_INTERRUPTED);
}
usbd_get_xfer_status(xfer, NULL, NULL, size, &err);
DPRINTFN(1,("usbd_intr_transfer: transferred %d\n", *size));
if (err) {
DPRINTF(("usbd_intr_transfer: error=%d\n", err));
usbd_clear_endpoint_stall(pipe);
}
return (err);
}
void
usb_detach_wait(device_ptr_t dv)
{
DPRINTF(("usb_detach_wait: waiting for %s\n", USBDEVPTRNAME(dv)));
if (tsleep(dv, PZERO, "usbdet", hz * 60))
printf("usb_detach_wait: %s didn't detach\n",
USBDEVPTRNAME(dv));
DPRINTF(("usb_detach_wait: %s done\n", USBDEVPTRNAME(dv)));
}
void
usb_detach_wakeup(device_ptr_t dv)
{
DPRINTF(("usb_detach_wakeup: for %s\n", USBDEVPTRNAME(dv)));
wakeup(dv);
}