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      1 /*	$NetBSD: uipad.c,v 1.9 2020/01/07 06:42:26 maxv Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2011 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Christos Zoulas.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 __KERNEL_RCSID(0, "$NetBSD: uipad.c,v 1.9 2020/01/07 06:42:26 maxv Exp $");
     34 
     35 #ifdef _KERNEL_OPT
     36 #include "opt_usb.h"
     37 #endif
     38 
     39 #include <sys/param.h>
     40 #include <sys/systm.h>
     41 #include <sys/kernel.h>
     42 #include <sys/device.h>
     43 #include <sys/ioctl.h>
     44 #include <sys/conf.h>
     45 #include <sys/file.h>
     46 #include <sys/select.h>
     47 #include <sys/proc.h>
     48 #include <sys/vnode.h>
     49 #include <sys/poll.h>
     50 #include <sys/bus.h>
     51 
     52 #include <dev/usb/usb.h>
     53 #include <dev/usb/usbdi.h>
     54 #include <dev/usb/usbdi_util.h>
     55 #include <dev/usb/usbdivar.h>
     56 
     57 #include <dev/usb/usbdevs.h>
     58 
     59 #ifdef UIPAD_DEBUG
     60 #define DPRINTF(x)	if (uipaddebug) printf x
     61 #define DPRINTFN(n, x)	if (uipaddebug > n) printf x
     62 int	uipaddebug = 0;
     63 #else
     64 #define DPRINTF(x)
     65 #define DPRINTFN(n, x)
     66 #endif
     67 
     68 struct uipad_softc {
     69 	device_t		sc_dev;
     70 	struct usbd_device *	sc_udev;
     71 };
     72 
     73 static const struct usb_devno uipad_devs[] = {
     74 	{ USB_VENDOR_APPLE, USB_PRODUCT_APPLE_IPAD },
     75 	{ USB_VENDOR_APPLE, USB_PRODUCT_APPLE_IPAD_2 },
     76 	{ USB_VENDOR_APPLE, USB_PRODUCT_APPLE_IPAD_3 },
     77 	{ USB_VENDOR_APPLE, USB_PRODUCT_APPLE_IPAD_MINI },
     78 #if 0
     79 	{ USB_VENDOR_APPLE, USB_PRODUCT_APPLE_IPHONE },
     80 	{ USB_VENDOR_APPLE, USB_PRODUCT_APPLE_IPHONE_3G },
     81 	{ USB_VENDOR_APPLE, USB_PRODUCT_APPLE_IPHONE_3GS },
     82 	{ USB_VENDOR_APPLE, USB_PRODUCT_APPLE_IPHONE_4 },
     83 	{ USB_VENDOR_APPLE, USB_PRODUCT_APPLE_IPHONE_4_VZW },
     84 	{ USB_VENDOR_APPLE, USB_PRODUCT_APPLE_IPHONE_4S },
     85 	{ USB_VENDOR_APPLE, USB_PRODUCT_APPLE_IPHONE_5 },
     86 #endif
     87 };
     88 
     89 #define uipad_lookup(v, p) usb_lookup(uipad_devs, v, p)
     90 
     91 static int	uipad_match(device_t, cfdata_t, void *);
     92 static void	uipad_attach(device_t, device_t, void *);
     93 static int	uipad_detach(device_t, int);
     94 
     95 CFATTACH_DECL_NEW(uipad, sizeof(struct uipad_softc), uipad_match,
     96     uipad_attach, uipad_detach, NULL);
     97 
     98 static void
     99 uipad_cmd(struct uipad_softc *sc, uint8_t requestType, uint8_t reqno,
    100     uint16_t value, uint16_t index)
    101 {
    102 	usb_device_request_t req;
    103 	usbd_status err;
    104 
    105 	DPRINTF(("ipad cmd type=%x, number=%x, value=%d, index=%d\n",
    106 	    requestType, reqno, value, index));
    107         req.bmRequestType = requestType;
    108         req.bRequest = reqno;
    109         USETW(req.wValue, value);
    110         USETW(req.wIndex, index);
    111         USETW(req.wLength, 0);
    112 
    113         if ((err = usbd_do_request(sc->sc_udev, &req, NULL)) != 0)
    114 		aprint_error_dev(sc->sc_dev, "sending command failed %d\n",
    115 		    err);
    116 }
    117 
    118 static void
    119 uipad_charge(struct uipad_softc *sc)
    120 {
    121 	if (sc->sc_udev->ud_power != USB_MAX_POWER)
    122 		uipad_cmd(sc, UT_VENDOR | UT_WRITE, 0x40, 0x6400, 0x6400);
    123 }
    124 
    125 static int
    126 uipad_match(device_t parent, cfdata_t match, void *aux)
    127 {
    128 	struct usb_attach_arg *uaa = aux;
    129 
    130 	DPRINTFN(50, ("uipad_match\n"));
    131 	return uipad_lookup(uaa->uaa_vendor, uaa->uaa_product) != NULL ?
    132 	    UMATCH_VENDOR_PRODUCT : UMATCH_NONE;
    133 }
    134 
    135 static void
    136 uipad_attach(device_t parent, device_t self, void *aux)
    137 {
    138 	struct uipad_softc *sc = device_private(self);
    139 	struct usb_attach_arg *uaa = aux;
    140 	struct usbd_device *	dev = uaa->uaa_device;
    141 	char			*devinfop;
    142 
    143 	DPRINTFN(10,("uipad_attach: sc=%p\n", sc));
    144 
    145 	sc->sc_dev = self;
    146 	sc->sc_udev = dev;
    147 
    148 	aprint_naive("\n");
    149 	aprint_normal("\n");
    150 
    151 	devinfop = usbd_devinfo_alloc(dev, 0);
    152 	aprint_normal_dev(self, "%s\n", devinfop);
    153 	usbd_devinfo_free(devinfop);
    154 
    155 	uipad_charge(sc);
    156 
    157 	DPRINTFN(10, ("uipad_attach: %p\n", sc->sc_udev));
    158 
    159 	if (!pmf_device_register(self, NULL, NULL))
    160 		aprint_error_dev(self, "couldn't establish power handler\n");
    161 
    162 	usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, sc->sc_dev);
    163 	return;
    164 }
    165 
    166 static int
    167 uipad_detach(device_t self, int flags)
    168 {
    169 	struct uipad_softc *sc = device_private(self);
    170 	DPRINTF(("uipad_detach: sc=%p flags=%d\n", sc, flags));
    171 
    172 	pmf_device_deregister(self);
    173 
    174 	usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, sc->sc_dev);
    175 
    176 	return 0;
    177 }
    178