File: [cvs.NetBSD.org] / src / sys / rump / dev / lib / libugenhc / ugenhc.c (download)
Revision 1.22.4.5, Wed Dec 3 22:40:55 2014 UTC (9 years, 4 months ago) by skrll
Branch: nick-nhusb
Changes since 1.22.4.4: +7 -6
lines
Provide a USETWD macro for use with USB words designated
initialisers.
|
/* $NetBSD: ugenhc.c,v 1.22.4.5 2014/12/03 22:40:55 skrll Exp $ */
/*
* Copyright (c) 2009, 2010 Antti Kantee. All Rights Reserved.
*
* 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 AUTHOR ``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 AUTHOR 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.
*/
/*
* Copyright (c) 1998, 2004 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.
*
* 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.
*/
/*
* This rump driver attaches ugen as a kernel usb host controller.
* It's still somewhat under the hammer ....
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: ugenhc.c,v 1.22.4.5 2014/12/03 22:40:55 skrll Exp $");
#include <sys/param.h>
#include <sys/bus.h>
#include <sys/conf.h>
#include <sys/device.h>
#include <sys/fcntl.h>
#include <sys/kmem.h>
#include <sys/kernel.h>
#include <sys/kthread.h>
#include <sys/mutex.h>
#include <dev/usb/usb.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usbhid.h>
#include <dev/usb/usbdivar.h>
#include <dev/usb/usb_mem.h>
#include <dev/usb/usbroothub_subr.h>
#include <rump/rumpuser.h>
#include "ugenhc_user.h"
#include "rump_private.h"
#include "rump_dev_private.h"
#define UGEN_NEPTS 16
#define UGEN_EPT_CTRL 0 /* ugenx.00 is the control endpoint */
struct ugenhc_softc {
struct usbd_bus sc_bus;
int sc_devnum;
int sc_ugenfd[UGEN_NEPTS];
int sc_fdmodes[UGEN_NEPTS];
int sc_port_status;
int sc_port_change;
int sc_addr;
int sc_conf;
struct lwp *sc_rhintr;
usbd_xfer_handle sc_intrxfer;
kmutex_t sc_lock;
};
static int ugenhc_probe(device_t, cfdata_t, void *);
static void ugenhc_attach(device_t, device_t, void *);
CFATTACH_DECL_NEW(ugenhc, sizeof(struct ugenhc_softc),
ugenhc_probe, ugenhc_attach, NULL, NULL);
struct rusb_xfer {
struct usbd_xfer rusb_xfer;
int rusb_status; /* now this is a cheap trick */
};
#define RUSB(x) ((struct rusb_xfer *)x)
#define UGENDEV_BASESTR "/dev/ugen"
#define UGENDEV_BUFSIZE 32
static void
makeugendevstr(int devnum, int endpoint, char *buf, size_t len)
{
CTASSERT(UGENDEV_BUFSIZE > sizeof(UGENDEV_BASESTR)+sizeof("0.00")+1);
snprintf(buf, len, "%s%d.%02d", UGENDEV_BASESTR, devnum, endpoint);
}
/*
* Our fictional hubbie.
*/
static const usb_device_descriptor_t rumphub_udd = {
.bLength = USB_DEVICE_DESCRIPTOR_SIZE,
.bDescriptorType = UDESC_DEVICE,
.bDeviceClass = UDCLASS_HUB,
.bDeviceSubClass = UDSUBCLASS_HUB,
.bDeviceProtocol = UDPROTO_FSHUB,
.bMaxPacketSize = 64,
.idVendor = { 0x75, 0x72 },
.idProduct = { 0x70, 0x6d },
.bNumConfigurations = 1,
};
static const usb_config_descriptor_t rumphub_ucd = {
.bLength = USB_CONFIG_DESCRIPTOR_SIZE,
.bDescriptorType = UDESC_CONFIG,
.wTotalLength = USETWD(
USB_CONFIG_DESCRIPTOR_SIZE +
USB_INTERFACE_DESCRIPTOR_SIZE +
USB_ENDPOINT_DESCRIPTOR_SIZE),
.bNumInterface = 1,
.bmAttributes = UC_SELF_POWERED | UC_ATTR_MBO,
};
static const usb_interface_descriptor_t rumphub_uid = {
.bLength = USB_INTERFACE_DESCRIPTOR_SIZE,
.bDescriptorType = UDESC_INTERFACE,
.bInterfaceNumber = 0,
.bNumEndpoints = 1,
.bInterfaceClass = UICLASS_HUB,
.bInterfaceSubClass = UISUBCLASS_HUB,
.bInterfaceProtocol = UIPROTO_FSHUB,
};
static const usb_endpoint_descriptor_t rumphub_epd = {
.bLength = USB_ENDPOINT_DESCRIPTOR_SIZE,
.bDescriptorType = UDESC_ENDPOINT,
.bmAttributes = UE_INTERRUPT,
.wMaxPacketSize = USETWD(64),
};
static const usb_hub_descriptor_t rumphub_hdd = {
.bDescLength = USB_HUB_DESCRIPTOR_SIZE,
.bDescriptorType = UDESC_HUB,
.bNbrPorts = 1,
};
static usbd_status
rumpusb_root_ctrl_start(usbd_xfer_handle xfer)
{
usb_device_request_t *req = &xfer->ux_request;
struct ugenhc_softc *sc = xfer->ux_pipe->up_dev->ud_bus->ub_hcpriv;
int len, totlen, value, curlen, err;
uint8_t *buf = NULL;
len = totlen = UGETW(req->wLength);
if (len)
buf = KERNADDR(&xfer->ux_dmabuf, 0);
value = UGETW(req->wValue);
#define C(x,y) ((x) | ((y) << 8))
switch(C(req->bRequest, req->bmRequestType)) {
case C(UR_GET_CONFIG, UT_READ_DEVICE):
if (len > 0) {
*buf = sc->sc_conf;
totlen = 1;
}
break;
case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE):
switch (value >> 8) {
case UDESC_DEVICE:
totlen = min(len, USB_DEVICE_DESCRIPTOR_SIZE);
memcpy(buf, &rumphub_udd, totlen);
break;
case UDESC_CONFIG:
totlen = 0;
curlen = min(len, USB_CONFIG_DESCRIPTOR_SIZE);
memcpy(buf, &rumphub_ucd, curlen);
len -= curlen;
buf += curlen;
totlen += curlen;
curlen = min(len, USB_INTERFACE_DESCRIPTOR_SIZE);
memcpy(buf, &rumphub_uid, curlen);
len -= curlen;
buf += curlen;
totlen += curlen;
curlen = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE);
memcpy(buf, &rumphub_epd, curlen);
len -= curlen;
buf += curlen;
totlen += curlen;
break;
case UDESC_STRING:
#define sd ((usb_string_descriptor_t *)buf)
switch (value & 0xff) {
case 0: /* Language table */
totlen = usb_makelangtbl(sd, len);
break;
case 1: /* Vendor */
totlen = usb_makestrdesc(sd, len, "rod nevada");
break;
case 2: /* Product */
totlen = usb_makestrdesc(sd, len,
"RUMPUSBHC root hub");
break;
}
#undef sd
break;
default:
panic("unhandled read device request");
break;
}
break;
case C(UR_SET_ADDRESS, UT_WRITE_DEVICE):
if (value >= USB_MAX_DEVICES) {
err = USBD_IOERROR;
goto ret;
}
sc->sc_addr = value;
break;
case C(UR_SET_CONFIG, UT_WRITE_DEVICE):
if (value != 0 && value != 1) {
err = USBD_IOERROR;
goto ret;
}
sc->sc_conf = value;
break;
case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER):
switch (value) {
case UHF_PORT_RESET:
sc->sc_port_change |= UPS_C_PORT_RESET;
break;
case UHF_PORT_POWER:
break;
default:
panic("unhandled");
}
break;
case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER):
sc->sc_port_change &= ~value;
break;
case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE):
totlen = min(len, USB_HUB_DESCRIPTOR_SIZE);
memcpy(buf, &rumphub_hdd, totlen);
break;
case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE):
/* huh? other hc's do this */
memset(buf, 0, len);
totlen = len;
break;
case C(UR_GET_STATUS, UT_READ_CLASS_OTHER):
{
usb_port_status_t ps;
USETW(ps.wPortStatus, sc->sc_port_status);
USETW(ps.wPortChange, sc->sc_port_change);
totlen = min(len, sizeof(ps));
memcpy(buf, &ps, totlen);
break;
}
default:
panic("unhandled request");
break;
}
err = USBD_NORMAL_COMPLETION;
xfer->ux_actlen = totlen;
ret:
xfer->ux_status = err;
mutex_enter(&sc->sc_lock);
usb_transfer_complete(xfer);
mutex_exit(&sc->sc_lock);
return (USBD_IN_PROGRESS);
}
static usbd_status
rumpusb_root_ctrl_transfer(usbd_xfer_handle xfer)
{
struct ugenhc_softc *sc = xfer->ux_pipe->up_dev->ud_bus->ub_hcpriv;
usbd_status err;
mutex_enter(&sc->sc_lock);
err = usb_insert_transfer(xfer);
mutex_exit(&sc->sc_lock);
if (err)
return (err);
return (rumpusb_root_ctrl_start(SIMPLEQ_FIRST(&xfer->ux_pipe->up_queue)));
}
static void
rumpusb_root_ctrl_abort(usbd_xfer_handle xfer)
{
}
static void
rumpusb_root_ctrl_close(usbd_pipe_handle pipe)
{
}
static void
rumpusb_root_ctrl_cleartoggle(usbd_pipe_handle pipe)
{
}
static void
rumpusb_root_ctrl_done(usbd_xfer_handle xfer)
{
}
static const struct usbd_pipe_methods rumpusb_root_ctrl_methods = {
.upm_transfer = rumpusb_root_ctrl_transfer,
.upm_start = rumpusb_root_ctrl_start,
.upm_abort = rumpusb_root_ctrl_abort,
.upm_close = rumpusb_root_ctrl_close,
.upm_cleartoggle = rumpusb_root_ctrl_cleartoggle,
.upm_done = rumpusb_root_ctrl_done,
};
static usbd_status
rumpusb_device_ctrl_start(usbd_xfer_handle xfer)
{
usb_device_request_t *req = &xfer->ux_request;
struct ugenhc_softc *sc = xfer->ux_pipe->up_dev->ud_bus->ub_hcpriv;
uint8_t *buf = NULL;
int len, totlen;
int value;
int err = 0;
int ru_error, mightfail = 0;
len = totlen = UGETW(req->wLength);
if (len)
buf = KERNADDR(&xfer->ux_dmabuf, 0);
value = UGETW(req->wValue);
#define C(x,y) ((x) | ((y) << 8))
switch(C(req->bRequest, req->bmRequestType)) {
case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE):
switch (value>>8) {
case UDESC_DEVICE:
{
usb_device_descriptor_t uddesc;
totlen = min(len, USB_DEVICE_DESCRIPTOR_SIZE);
memset(buf, 0, totlen);
if (rumpcomp_ugenhc_ioctl(sc->sc_ugenfd[UGEN_EPT_CTRL],
USB_GET_DEVICE_DESC, &uddesc, &ru_error) == -1) {
err = EIO;
goto ret;
}
memcpy(buf, &uddesc, totlen);
}
break;
case UDESC_CONFIG:
{
struct usb_full_desc ufdesc;
ufdesc.ufd_config_index = value & 0xff;
ufdesc.ufd_size = len;
ufdesc.ufd_data = buf;
memset(buf, 0, len);
if (rumpcomp_ugenhc_ioctl(sc->sc_ugenfd[UGEN_EPT_CTRL],
USB_GET_FULL_DESC, &ufdesc, &ru_error) == -1) {
err = USBD_IOERROR;
goto ret;
}
totlen = ufdesc.ufd_size;
}
break;
case UDESC_STRING:
{
struct usb_device_info udi;
if (rumpcomp_ugenhc_ioctl(sc->sc_ugenfd[UGEN_EPT_CTRL],
USB_GET_DEVICEINFO, &udi, &ru_error) == -1) {
printf("ugenhc: get dev info failed: %d\n",
ru_error);
err = USBD_IOERROR;
goto ret;
}
switch (value & 0xff) {
#define sd ((usb_string_descriptor_t *)buf)
case 0: /* language table */
break;
case 1: /* vendor */
totlen = usb_makestrdesc(sd, len,
udi.udi_vendor);
break;
case 2: /* product */
totlen = usb_makestrdesc(sd, len,
udi.udi_product);
break;
}
#undef sd
}
break;
default:
panic("not handled");
}
break;
case C(UR_SET_ADDRESS, UT_WRITE_DEVICE):
/* ignored, ugen won't let us */
break;
case C(UR_SET_CONFIG, UT_WRITE_DEVICE):
if (rumpcomp_ugenhc_ioctl(sc->sc_ugenfd[UGEN_EPT_CTRL],
USB_SET_CONFIG, &value, &ru_error) == -1) {
printf("ugenhc: set config failed: %d\n",
ru_error);
err = USBD_IOERROR;
goto ret;
}
break;
case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE):
{
struct usb_alt_interface uai;
totlen = 0;
uai.uai_interface_index = UGETW(req->wIndex);
uai.uai_alt_no = value;
if (rumpcomp_ugenhc_ioctl(sc->sc_ugenfd[UGEN_EPT_CTRL],
USB_SET_ALTINTERFACE, &uai, &ru_error) == -1) {
printf("ugenhc: set alt interface failed: %d\n",
ru_error);
err = USBD_IOERROR;
goto ret;
}
break;
}
/*
* This request might fail unknown reasons. "EIO" doesn't
* give much help, and debugging the host ugen would be
* necessary. However, since it doesn't seem to really
* affect anything, just let it fail for now.
*/
case C(0x00, UT_WRITE_CLASS_INTERFACE):
mightfail = 1;
/*FALLTHROUGH*/
/*
* XXX: don't wildcard these yet. I want to better figure
* out what to trap here. This is kinda silly, though ...
*/
case C(0x01, UT_WRITE_VENDOR_DEVICE):
case C(0x06, UT_WRITE_VENDOR_DEVICE):
case C(0x07, UT_READ_VENDOR_DEVICE):
case C(0x09, UT_READ_VENDOR_DEVICE):
case C(0xfe, UT_READ_CLASS_INTERFACE):
case C(0x01, UT_READ_CLASS_INTERFACE):
case C(UR_GET_STATUS, UT_READ_CLASS_OTHER):
case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE):
case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE):
case C(UR_GET_DESCRIPTOR, UT_READ_INTERFACE):
case C(0xff, UT_WRITE_CLASS_INTERFACE):
case C(0x20, UT_WRITE_CLASS_INTERFACE):
case C(0x22, UT_WRITE_CLASS_INTERFACE):
case C(0x0a, UT_WRITE_CLASS_INTERFACE):
case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER):
case C(0x00, UT_WRITE_CLASS_DEVICE):
case C(UR_SET_FEATURE, UT_WRITE_DEVICE):
case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER):
case C(UR_SET_REPORT, UT_WRITE_CLASS_INTERFACE):
case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT):
{
struct usb_ctl_request ucr;
memcpy(&ucr.ucr_request, req, sizeof(ucr.ucr_request));
ucr.ucr_data = buf;
if (rumpcomp_ugenhc_ioctl(sc->sc_ugenfd[UGEN_EPT_CTRL],
USB_DO_REQUEST, &ucr, &ru_error) == -1) {
if (!mightfail) {
panic("request failed: %d", ru_error);
} else {
err = ru_error;
}
}
}
break;
default:
panic("unhandled request");
break;
}
xfer->ux_actlen = totlen;
err = USBD_NORMAL_COMPLETION;
ret:
xfer->ux_status = err;
mutex_enter(&sc->sc_lock);
usb_transfer_complete(xfer);
mutex_exit(&sc->sc_lock);
return (USBD_IN_PROGRESS);
}
static usbd_status
rumpusb_device_ctrl_transfer(usbd_xfer_handle xfer)
{
struct ugenhc_softc *sc = xfer->ux_pipe->up_dev->ud_bus->ub_hcpriv;
usbd_status err;
mutex_enter(&sc->sc_lock);
err = usb_insert_transfer(xfer);
mutex_exit(&sc->sc_lock);
if (err)
return (err);
return (rumpusb_device_ctrl_start(SIMPLEQ_FIRST(&xfer->ux_pipe->up_queue)));
}
static void
rumpusb_device_ctrl_abort(usbd_xfer_handle xfer)
{
}
static void
rumpusb_device_ctrl_close(usbd_pipe_handle pipe)
{
}
static void
rumpusb_device_ctrl_cleartoggle(usbd_pipe_handle pipe)
{
}
static void
rumpusb_device_ctrl_done(usbd_xfer_handle xfer)
{
}
static const struct usbd_pipe_methods rumpusb_device_ctrl_methods = {
.upm_transfer = rumpusb_device_ctrl_transfer,
.upm_start = rumpusb_device_ctrl_start,
.upm_abort = rumpusb_device_ctrl_abort,
.upm_close = rumpusb_device_ctrl_close,
.upm_cleartoggle = rumpusb_device_ctrl_cleartoggle,
.upm_done = rumpusb_device_ctrl_done,
};
static void
rhscintr(void *arg)
{
char buf[UGENDEV_BUFSIZE];
struct ugenhc_softc *sc = arg;
usbd_xfer_handle xfer;
int fd, error;
makeugendevstr(sc->sc_devnum, 0, buf, sizeof(buf));
for (;;) {
/*
* Detect device attach.
*/
for (;;) {
error = rumpuser_open(buf, RUMPUSER_OPEN_RDWR, &fd);
if (error == 0)
break;
kpause("ugwait", false, hz/4, NULL);
}
sc->sc_ugenfd[UGEN_EPT_CTRL] = fd;
sc->sc_port_status = UPS_CURRENT_CONNECT_STATUS
| UPS_PORT_ENABLED | UPS_PORT_POWER;
sc->sc_port_change = UPS_C_CONNECT_STATUS | UPS_C_PORT_RESET;
xfer = sc->sc_intrxfer;
memset(xfer->ux_buffer, 0xff, xfer->ux_length);
xfer->ux_actlen = xfer->ux_length;
xfer->ux_status = USBD_NORMAL_COMPLETION;
mutex_enter(&sc->sc_lock);
usb_transfer_complete(xfer);
mutex_exit(&sc->sc_lock);
kpause("ugwait2", false, hz, NULL);
/*
* Detect device detach.
*/
for (;;) {
fd = rumpuser_open(buf, RUMPUSER_OPEN_RDWR, &error);
if (fd == -1)
break;
error = rumpuser_close(fd);
kpause("ugwait2", false, hz/4, NULL);
}
sc->sc_port_status = ~(UPS_CURRENT_CONNECT_STATUS
| UPS_PORT_ENABLED | UPS_PORT_POWER);
sc->sc_port_change = UPS_C_CONNECT_STATUS | UPS_C_PORT_RESET;
error = rumpuser_close(sc->sc_ugenfd[UGEN_EPT_CTRL]);
sc->sc_ugenfd[UGEN_EPT_CTRL] = -1;
xfer = sc->sc_intrxfer;
memset(xfer->ux_buffer, 0xff, xfer->ux_length);
xfer->ux_actlen = xfer->ux_length;
xfer->ux_status = USBD_NORMAL_COMPLETION;
mutex_enter(&sc->sc_lock);
usb_transfer_complete(xfer);
mutex_exit(&sc->sc_lock);
kpause("ugwait3", false, hz, NULL);
}
kthread_exit(0);
}
static usbd_status
rumpusb_root_intr_start(usbd_xfer_handle xfer)
{
struct ugenhc_softc *sc = xfer->ux_pipe->up_dev->ud_bus->ub_hcpriv;
int error;
mutex_enter(&sc->sc_lock);
sc->sc_intrxfer = xfer;
if (!sc->sc_rhintr) {
error = kthread_create(PRI_NONE, 0, NULL,
rhscintr, sc, &sc->sc_rhintr, "ugenrhi");
if (error)
xfer->ux_status = USBD_IOERROR;
}
mutex_exit(&sc->sc_lock);
return (USBD_IN_PROGRESS);
}
static usbd_status
rumpusb_root_intr_transfer(usbd_xfer_handle xfer)
{
struct ugenhc_softc *sc = xfer->ux_pipe->up_dev->ud_bus->ub_hcpriv;
usbd_status err;
mutex_enter(&sc->sc_lock);
err = usb_insert_transfer(xfer);
mutex_exit(&sc->sc_lock);
if (err)
return (err);
return (rumpusb_root_intr_start(SIMPLEQ_FIRST(&xfer->ux_pipe->up_queue)));
}
static void
rumpusb_root_intr_abort(usbd_xfer_handle xfer)
{
}
static void
rumpusb_root_intr_close(usbd_pipe_handle pipe)
{
}
static void
rumpusb_root_intr_cleartoggle(usbd_pipe_handle pipe)
{
}
static void
rumpusb_root_intr_done(usbd_xfer_handle xfer)
{
}
static const struct usbd_pipe_methods rumpusb_root_intr_methods = {
.upm_transfer = rumpusb_root_intr_transfer,
.upm_start = rumpusb_root_intr_start,
.upm_abort = rumpusb_root_intr_abort,
.upm_close = rumpusb_root_intr_close,
.upm_cleartoggle = rumpusb_root_intr_cleartoggle,
.upm_done = rumpusb_root_intr_done,
};
static usbd_status
rumpusb_device_bulk_start(usbd_xfer_handle xfer)
{
struct ugenhc_softc *sc = xfer->ux_pipe->up_dev->ud_bus->ub_hcpriv;
usb_endpoint_descriptor_t *ed = xfer->ux_pipe->up_endpoint->ue_edesc;
size_t n, done;
bool isread;
int len, error, endpt;
uint8_t *buf;
int xfererr = USBD_NORMAL_COMPLETION;
int shortval, i;
ed = xfer->ux_pipe->up_endpoint->ue_edesc;
endpt = ed->bEndpointAddress;
isread = UE_GET_DIR(endpt) == UE_DIR_IN;
endpt = UE_GET_ADDR(endpt);
KASSERT(endpt < UGEN_NEPTS);
buf = KERNADDR(&xfer->ux_dmabuf, 0);
done = 0;
if ((ed->bmAttributes & UE_XFERTYPE) == UE_ISOCHRONOUS) {
for (i = 0, len = 0; i < xfer->ux_nframes; i++)
len += xfer->ux_frlengths[i];
} else {
KASSERT(xfer->ux_length);
len = xfer->ux_length;
}
shortval = (xfer->ux_flags & USBD_SHORT_XFER_OK) != 0;
while (RUSB(xfer)->rusb_status == 0) {
if (isread) {
struct rumpuser_iovec iov;
rumpcomp_ugenhc_ioctl(sc->sc_ugenfd[endpt],
USB_SET_SHORT_XFER, &shortval, &error);
iov.iov_base = buf+done;
iov.iov_len = len-done;
error = rumpuser_iovread(sc->sc_ugenfd[endpt], &iov, 1,
RUMPUSER_IOV_NOSEEK, &n);
if (error) {
n = 0;
if (done == 0) {
if (error == ETIMEDOUT)
continue;
xfererr = USBD_IOERROR;
goto out;
}
}
done += n;
if (done == len)
break;
} else {
struct rumpuser_iovec iov;
iov.iov_base = buf;
iov.iov_len = len;
error = rumpuser_iovwrite(sc->sc_ugenfd[endpt], &iov, 1,
RUMPUSER_IOV_NOSEEK, &n);
done = n;
if (done == len)
break;
else if (!error)
panic("short write");
xfererr = USBD_IOERROR;
goto out;
}
if (shortval) {
/*
* Holy XXX, bitman. I get >16byte interrupt
* transfers from ugen in 16 byte chunks.
* Don't know how to better fix this for now.
* Of course this hack will fail e.g. if someone
* sports other magic values or if the transfer
* happens to be an integral multiple of 16
* in size ....
*/
if ((ed->bmAttributes & UE_XFERTYPE) == UE_INTERRUPT
&& n == 16) {
continue;
} else {
break;
}
}
}
if (RUSB(xfer)->rusb_status == 0) {
xfer->ux_actlen = done;
} else {
xfererr = USBD_CANCELLED;
RUSB(xfer)->rusb_status = 2;
}
out:
if ((ed->bmAttributes & UE_XFERTYPE) == UE_ISOCHRONOUS)
if (done != len)
panic("lazy bum");
xfer->ux_status = xfererr;
mutex_enter(&sc->sc_lock);
usb_transfer_complete(xfer);
mutex_exit(&sc->sc_lock);
return (USBD_IN_PROGRESS);
}
static void
doxfer_kth(void *arg)
{
usbd_pipe_handle pipe = arg;
struct ugenhc_softc *sc = pipe->up_dev->ud_bus->ub_hcpriv;
mutex_enter(&sc->sc_lock);
do {
usbd_xfer_handle xfer = SIMPLEQ_FIRST(&pipe->up_queue);
mutex_exit(&sc->sc_lock);
rumpusb_device_bulk_start(xfer);
mutex_enter(&sc->sc_lock);
} while (!SIMPLEQ_EMPTY(&pipe->up_queue));
mutex_exit(&sc->sc_lock);
kthread_exit(0);
}
static usbd_status
rumpusb_device_bulk_transfer(usbd_xfer_handle xfer)
{
struct ugenhc_softc *sc = xfer->ux_pipe->up_dev->ud_bus->ub_hcpriv;
usbd_status err;
if (!rump_threads) {
/* XXX: lie about supporting async transfers */
if ((xfer->ux_flags & USBD_SYNCHRONOUS) == 0) {
printf("non-threaded rump does not support "
"async transfers.\n");
return USBD_IN_PROGRESS;
}
mutex_enter(&sc->sc_lock);
err = usb_insert_transfer(xfer);
mutex_exit(&sc->sc_lock);
if (err)
return err;
return rumpusb_device_bulk_start(
SIMPLEQ_FIRST(&xfer->ux_pipe->up_queue));
} else {
mutex_enter(&sc->sc_lock);
err = usb_insert_transfer(xfer);
mutex_exit(&sc->sc_lock);
if (err)
return err;
kthread_create(PRI_NONE, 0, NULL, doxfer_kth, xfer->ux_pipe, NULL,
"rusbhcxf");
return USBD_IN_PROGRESS;
}
}
/* wait for transfer to abort. yea, this is cheesy (from a spray can) */
static void
rumpusb_device_bulk_abort(usbd_xfer_handle xfer)
{
struct rusb_xfer *rx = RUSB(xfer);
rx->rusb_status = 1;
while (rx->rusb_status < 2) {
kpause("jopo", false, hz/10, NULL);
}
}
static void
rumpusb_device_bulk_close(usbd_pipe_handle pipe)
{
struct ugenhc_softc *sc = pipe->up_dev->ud_bus->ub_hcpriv;
int endpt = pipe->up_endpoint->ue_edesc->bEndpointAddress;
usbd_xfer_handle xfer;
KASSERT(mutex_owned(&sc->sc_lock));
endpt = UE_GET_ADDR(endpt);
while ((xfer = SIMPLEQ_FIRST(&pipe->up_queue)) != NULL)
rumpusb_device_bulk_abort(xfer);
rumpuser_close(sc->sc_ugenfd[endpt]);
sc->sc_ugenfd[endpt] = -1;
sc->sc_fdmodes[endpt] = -1;
}
static void
rumpusb_device_bulk_cleartoggle(usbd_pipe_handle pipe)
{
}
static void
rumpusb_device_bulk_done(usbd_xfer_handle xfer)
{
}
static const struct usbd_pipe_methods rumpusb_device_bulk_methods = {
.upm_transfer = rumpusb_device_bulk_transfer,
.upm_start = rumpusb_device_bulk_start,
.upm_abort = rumpusb_device_bulk_abort,
.upm_close = rumpusb_device_bulk_close,
.upm_cleartoggle = rumpusb_device_bulk_cleartoggle,
.upm_done = rumpusb_device_bulk_done,
};
static usbd_status
ugenhc_open(struct usbd_pipe *pipe)
{
usbd_device_handle dev = pipe->up_dev;
struct ugenhc_softc *sc = dev->ud_bus->ub_hcpriv;
usb_endpoint_descriptor_t *ed = pipe->up_endpoint->ue_edesc;
uint8_t addr = dev->ud_addr;
uint8_t xfertype = ed->bmAttributes & UE_XFERTYPE;
char buf[UGENDEV_BUFSIZE];
int endpt, oflags, error;
int fd, val;
if (addr == sc->sc_addr) {
switch (xfertype) {
case UE_CONTROL:
pipe->up_methods = &rumpusb_root_ctrl_methods;
break;
case UE_INTERRUPT:
pipe->up_methods = &rumpusb_root_intr_methods;
break;
default:
panic("%d not supported", xfertype);
break;
}
} else {
switch (xfertype) {
case UE_CONTROL:
pipe->up_methods = &rumpusb_device_ctrl_methods;
break;
case UE_INTERRUPT:
case UE_BULK:
case UE_ISOCHRONOUS:
pipe->up_methods = &rumpusb_device_bulk_methods;
endpt = pipe->up_endpoint->ue_edesc->bEndpointAddress;
if (UE_GET_DIR(endpt) == UE_DIR_IN) {
oflags = O_RDONLY;
} else {
oflags = O_WRONLY;
}
endpt = UE_GET_ADDR(endpt);
if (oflags != O_RDONLY && xfertype == UE_ISOCHRONOUS) {
printf("WARNING: faking isoc write open\n");
oflags = O_RDONLY;
}
if (sc->sc_fdmodes[endpt] == oflags
|| sc->sc_fdmodes[endpt] == O_RDWR)
break;
if (sc->sc_fdmodes[endpt] != -1) {
/* XXX: closing from under someone? */
error = rumpuser_close(sc->sc_ugenfd[endpt]);
oflags = O_RDWR;
}
makeugendevstr(sc->sc_devnum, endpt, buf, sizeof(buf));
/* XXX: theoretically should convert oflags */
error = rumpuser_open(buf, oflags, &fd);
if (error != 0) {
return USBD_INVAL; /* XXX: no mapping */
}
val = 100;
if (rumpcomp_ugenhc_ioctl(fd, USB_SET_TIMEOUT, &val,
&error) == -1)
panic("timeout set failed");
sc->sc_ugenfd[endpt] = fd;
sc->sc_fdmodes[endpt] = oflags;
break;
default:
panic("%d not supported", xfertype);
break;
}
}
return 0;
}
static void
ugenhc_softint(void *arg)
{
}
static void
ugenhc_poll(struct usbd_bus *ubus)
{
}
static struct usbd_xfer *
ugenhc_allocx(struct usbd_bus *bus)
{
usbd_xfer_handle xfer;
xfer = kmem_zalloc(sizeof(struct usbd_xfer), KM_SLEEP);
xfer->ux_state = XFER_BUSY;
return xfer;
}
static void
ugenhc_freex(struct usbd_bus *bus, struct usbd_xfer *xfer)
{
kmem_free(xfer, sizeof(struct usbd_xfer));
}
static void
ugenhc_getlock(struct usbd_bus *bus, kmutex_t **lock)
{
struct ugenhc_softc *sc = bus->ub_hcpriv;
*lock = &sc->sc_lock;
}
struct ugenhc_pipe {
struct usbd_pipe pipe;
};
static const struct usbd_bus_methods ugenhc_bus_methods = {
.ubm_open = ugenhc_open,
.ubm_softint = ugenhc_softint,
.ubm_dopoll = ugenhc_poll,
.ubm_allocx = ugenhc_allocx,
.ubm_freex = ugenhc_freex,
.ubm_getlock = ugenhc_getlock
};
static int
ugenhc_probe(device_t parent, cfdata_t match, void *aux)
{
char buf[UGENDEV_BUFSIZE];
makeugendevstr(match->cf_unit, 0, buf, sizeof(buf));
if (rumpuser_getfileinfo(buf, NULL, NULL) != 0)
return 0;
return 1;
}
static void
ugenhc_attach(device_t parent, device_t self, void *aux)
{
struct mainbus_attach_args *maa = aux;
struct ugenhc_softc *sc = device_private(self);
aprint_normal("\n");
memset(sc, 0, sizeof(*sc));
memset(&sc->sc_ugenfd, -1, sizeof(sc->sc_ugenfd));
memset(&sc->sc_fdmodes, -1, sizeof(sc->sc_fdmodes));
sc->sc_bus.ub_revision = USBREV_2_0;
sc->sc_bus.ub_methods = &ugenhc_bus_methods;
sc->sc_bus.ub_hcpriv = sc;
sc->sc_bus.ub_pipesize = sizeof(struct ugenhc_pipe);
sc->sc_bus.ub_usedma = false;
sc->sc_devnum = maa->maa_unit;
mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_NONE);
config_found(self, &sc->sc_bus, usbctlprint);
}
![[BACK]](/icons/back.gif){kind=icon}
Return to ugenhc.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [cvs.NetBSD.org] / src / sys / rump / dev / lib / libugenhc