1 /* $NetBSD: uipad.c,v 1.4 2016/12/04 10:12:35 skrll 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific pipadr written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: uipad.c,v 1.4 2016/12/04 10:12:35 skrll Exp $"); 41 42 #ifdef _KERNEL_OPT 43 #include "opt_usb.h" 44 #endif 45 46 #include <sys/param.h> 47 #include <sys/systm.h> 48 #include <sys/kernel.h> 49 #include <sys/device.h> 50 #include <sys/ioctl.h> 51 #include <sys/conf.h> 52 #include <sys/file.h> 53 #include <sys/select.h> 54 #include <sys/proc.h> 55 #include <sys/vnode.h> 56 #include <sys/poll.h> 57 #include <sys/bus.h> 58 59 #include <dev/usb/usb.h> 60 #include <dev/usb/usbdi.h> 61 #include <dev/usb/usbdi_util.h> 62 #include <dev/usb/usbdivar.h> 63 64 #include <dev/usb/usbdevs.h> 65 66 #ifdef UIPAD_DEBUG 67 #define DPRINTF(x) if (uipaddebug) printf x 68 #define DPRINTFN(n, x) if (uipaddebug > n) printf x 69 int uipaddebug = 0; 70 #else 71 #define DPRINTF(x) 72 #define DPRINTFN(n, x) 73 #endif 74 75 struct uipad_softc { 76 device_t sc_dev; 77 struct usbd_device * sc_udev; 78 }; 79 80 /* 81 * Note that we do not attach to USB_PRODUCT_RIM_BLACKBERRY_PEARL_DUAL 82 * as we let umass claim the device instead. 83 */ 84 static const struct usb_devno uipad_devs[] = { 85 { USB_VENDOR_APPLE, USB_PRODUCT_APPLE_IPAD }, 86 }; 87 88 #define uipad_lookup(v, p) usb_lookup(uipad_devs, v, p) 89 90 int uipad_match(device_t, cfdata_t, void *); 91 void uipad_attach(device_t, device_t, void *); 92 int uipad_detach(device_t, int); 93 int uipad_activate(device_t, enum devact); 94 95 extern struct cfdriver uipad_cd; 96 CFATTACH_DECL_NEW(uipad, sizeof(struct uipad_softc), uipad_match, 97 uipad_attach, uipad_detach, NULL); 98 99 static void 100 uipad_cmd(struct uipad_softc *sc, uint8_t requestType, uint8_t reqno, 101 uint16_t value, uint16_t index) 102 { 103 usb_device_request_t req; 104 usbd_status err; 105 106 DPRINTF(("ipad cmd type=%x, number=%x, value=%d, index=%d\n", 107 requestType, reqno, value, index)); 108 req.bmRequestType = requestType; 109 req.bRequest = reqno; 110 USETW(req.wValue, value); 111 USETW(req.wIndex, index); 112 USETW(req.wLength, 0); 113 114 if ((err = usbd_do_request(sc->sc_udev, &req, NULL)) != 0) 115 aprint_error_dev(sc->sc_dev, "sending command failed %d\n", 116 err); 117 } 118 119 static void 120 uipad_charge(struct uipad_softc *sc) 121 { 122 if (sc->sc_udev->ud_power != USB_MAX_POWER) 123 uipad_cmd(sc, UT_VENDOR | UT_WRITE, 0x40, 0x6400, 0x6400); 124 } 125 126 int 127 uipad_match(device_t parent, cfdata_t match, void *aux) 128 { 129 struct usb_attach_arg *uaa = aux; 130 131 DPRINTFN(50, ("uipad_match\n")); 132 return uipad_lookup(uaa->uaa_vendor, uaa->uaa_product) != NULL ? 133 UMATCH_VENDOR_PRODUCT : UMATCH_NONE; 134 } 135 136 void 137 uipad_attach(device_t parent, device_t self, void *aux) 138 { 139 struct uipad_softc *sc = device_private(self); 140 struct usb_attach_arg *uaa = aux; 141 struct usbd_device * dev = uaa->uaa_device; 142 char *devinfop; 143 144 DPRINTFN(10,("uipad_attach: sc=%p\n", sc)); 145 146 sc->sc_dev = self; 147 sc->sc_udev = dev; 148 149 aprint_naive("\n"); 150 aprint_normal("\n"); 151 152 devinfop = usbd_devinfo_alloc(dev, 0); 153 aprint_normal_dev(self, "%s\n", devinfop); 154 usbd_devinfo_free(devinfop); 155 156 uipad_charge(sc); 157 158 DPRINTFN(10, ("uipad_attach: %p\n", sc->sc_udev)); 159 160 if (!pmf_device_register(self, NULL, NULL)) 161 aprint_error_dev(self, "couldn't establish power handler\n"); 162 163 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, sc->sc_dev); 164 return; 165 } 166 167 int 168 uipad_detach(device_t self, int flags) 169 { 170 struct uipad_softc *sc = device_private(self); 171 DPRINTF(("uipad_detach: sc=%p flags=%d\n", sc, flags)); 172 173 pmf_device_deregister(self); 174 175 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, sc->sc_dev); 176 177 return 0; 178 } 179