/*      $NetBSD: usb_subr_30.c,v 1.7 2023/07/31 17:41:17 christos Exp $ */
/*      $FreeBSD: src/sys/dev/usb/usb_subr.c,v 1.18 1999/11/17 22:33:47 n_hibma Exp $   */

/*
* 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 ([email protected]) 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.
*/

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: usb_subr_30.c,v 1.7 2023/07/31 17:41:17 christos Exp $");

#ifdef _KERNEL_OPT
#include "opt_compat_netbsd.h"
#include "opt_usb.h"
#endif

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/kmem.h>
#include <sys/device.h>
#include <sys/select.h>
#include <sys/proc.h>

#include <sys/bus.h>
#include <sys/module.h>
#include <sys/compat_stub.h>

#include <compat/common/compat_mod.h>

#include <dev/usb/usb.h>

#include <dev/usb/usbdi.h>
#include <dev/usb/usbdi_util.h>
#include <dev/usb/usbdivar.h>
#include <dev/usb/usbdevs.h>
#include <dev/usb/usb_quirks.h>
#include <dev/usb/usb_verbose.h>
#include <dev/usb/usbhist.h>

static void usb_copy30_devinfo(struct usb_device_info30 *,
   const struct usb_device_info *);

static void
usb_copy30_devinfo(struct usb_device_info30 *uo,
                    const struct usb_device_info *ue)
{
       const unsigned char *p;
       unsigned char *q;
       int i, n;

       uo->udi_bus = ue->udi_bus;
       uo->udi_addr = ue->udi_addr;
       uo->udi_cookie = ue->udi_cookie;
       for (i = 0, p = (const unsigned char *)ue->udi_product,
            q = (unsigned char *)uo->udi_product;
            *p && i < USB_MAX_STRING_LEN - 1; p++) {
               if (*p < 0x80)
                       q[i++] = *p;
               else {
                       q[i++] = '?';
                       if ((*p & 0xe0) == 0xe0)
                               p++;
                       p++;
               }
       }
       q[i] = 0;

       for (i = 0, p = ue->udi_vendor, q = uo->udi_vendor;
            *p && i < USB_MAX_STRING_LEN - 1; p++) {
               if (* p < 0x80)
                       q[i++] = *p;
               else {
                       q[i++] = '?';
                       p++;
                       if ((*p & 0xe0) == 0xe0)
                               p++;
               }
       }
       q[i] = 0;

       memcpy(uo->udi_release, ue->udi_release, sizeof(uo->udi_release));

       uo->udi_productNo = ue->udi_productNo;
       uo->udi_vendorNo = ue->udi_vendorNo;
       uo->udi_releaseNo = ue->udi_releaseNo;
       uo->udi_class = ue->udi_class;
       uo->udi_subclass = ue->udi_subclass;
       uo->udi_protocol = ue->udi_protocol;
       uo->udi_config = ue->udi_config;
       uo->udi_speed = ue->udi_speed;
       uo->udi_power = ue->udi_power;
       uo->udi_nports = ue->udi_nports;

       for (n=0; n<USB_MAX_DEVNAMES; n++)
               memcpy(uo->udi_devnames[n],
                      ue->udi_devnames[n], USB_MAX_DEVNAMELEN);
       memcpy(uo->udi_ports, ue->udi_ports, sizeof(uo->udi_ports));
}

static int
usbd_fill_deviceinfo30(struct usbd_device *dev,
   struct usb_device_info30 *di, int usedev,
   void (*do_devinfo_vp)(struct usbd_device *, char *, size_t, char *,
           size_t, int, int),
   int (*do_printBCD)(char *cp, size_t l, int bcd))
{
       struct usbd_port *p;
       size_t i, j;
       int err;

       di->udi_bus = device_unit(dev->ud_bus->ub_usbctl);
       di->udi_addr = dev->ud_addr;
       di->udi_cookie = dev->ud_cookie;
       (*do_devinfo_vp)(dev, di->udi_vendor, sizeof(di->udi_vendor),
           di->udi_product, sizeof(di->udi_product), usedev, 0);
       (*do_printBCD)(di->udi_release, sizeof(di->udi_release),
           UGETW(dev->ud_ddesc.bcdDevice));
       di->udi_vendorNo = UGETW(dev->ud_ddesc.idVendor);
       di->udi_productNo = UGETW(dev->ud_ddesc.idProduct);
       di->udi_releaseNo = UGETW(dev->ud_ddesc.bcdDevice);
       di->udi_class = dev->ud_ddesc.bDeviceClass;
       di->udi_subclass = dev->ud_ddesc.bDeviceSubClass;
       di->udi_protocol = dev->ud_ddesc.bDeviceProtocol;
       di->udi_config = dev->ud_config;
       di->udi_power = dev->ud_selfpowered ? 0 : dev->ud_power;
       di->udi_speed = dev->ud_speed;

       if (dev->ud_subdevlen > 0) {
               for (i = 0, j = 0; i < dev->ud_subdevlen &&
                            j < USB_MAX_DEVNAMES; i++) {
                       if (!dev->ud_subdevs[i])
                               continue;
                       strncpy(di->udi_devnames[j],
                           device_xname(dev->ud_subdevs[i]), USB_MAX_DEVNAMELEN);
                       di->udi_devnames[j][USB_MAX_DEVNAMELEN-1] = '\0';
                       j++;
               }
       } else {
               j = 0;
       }
       for (/* j is set */; j < USB_MAX_DEVNAMES; j++)
               di->udi_devnames[j][0] = 0;              /* empty */

       if (!dev->ud_hub) {
               di->udi_nports = 0;
               return 0;
       }

       const u_int nports = dev->ud_hub->uh_hubdesc.bNbrPorts;
       for (i = 1; i <= __arraycount(di->udi_ports) && i <= nports;
            i++) {
               p = &dev->ud_hub->uh_ports[i - 1];
               if (p->up_dev)
                       err = p->up_dev->ud_addr;
               else {
                       const int s = UGETW(p->up_status.wPortStatus);
                       if (s & UPS_PORT_ENABLED)
                               err = USB_PORT_ENABLED;
                       else if (s & UPS_SUSPEND)
                               err = USB_PORT_SUSPENDED;
                       else if (s & UPS_PORT_POWER)
                               err = USB_PORT_POWERED;
                       else
                               err = USB_PORT_DISABLED;
               }
               di->udi_ports[i - 1] = err;
       }
       di->udi_nports = nports;

       return 0;
}

static int
usb_copy_to30(struct usb_event *ue, struct usb_event30 *ueo,
   struct uio *uio)
{

       ueo->ue_type = ue->ue_type;
       memcpy(&ueo->ue_time, &ue->ue_time, sizeof(struct timespec));
       switch (ue->ue_type) {
               case USB_EVENT_DEVICE_ATTACH:
               case USB_EVENT_DEVICE_DETACH:
                       usb_copy30_devinfo(&ueo->u.ue_device,
                           &ue->u.ue_device);
                       break;

               case USB_EVENT_CTRLR_ATTACH:
               case USB_EVENT_CTRLR_DETACH:
                       ueo->u.ue_ctrlr.ue_bus=ue->u.ue_ctrlr.ue_bus;
                       break;

               case USB_EVENT_DRIVER_ATTACH:
               case USB_EVENT_DRIVER_DETACH:
                       ueo->u.ue_driver.ue_cookie=ue->u.ue_driver.ue_cookie;
                       memcpy(ueo->u.ue_driver.ue_devname,
                           ue->u.ue_driver.ue_devname,
                           sizeof(ue->u.ue_driver.ue_devname));
                       break;
               default:
                       ;
       }

       return 0;
}

void
usb_30_init(void)
{

       MODULE_HOOK_SET(usb_subr_fill_30_hook, usbd_fill_deviceinfo30);
       MODULE_HOOK_SET(usb_subr_copy_30_hook, usb_copy_to30);
}

void
usb_30_fini(void)
{

       MODULE_HOOK_UNSET(usb_subr_fill_30_hook);
       MODULE_HOOK_UNSET(usb_subr_copy_30_hook);
}

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