1 /* $NetBSD: uipad.c,v 1.1 2011/12/31 00:08:48 christos 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 1.1 2011/12/31 00:08:48 christos Exp $"); 41 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 #include <sys/kernel.h> 45 #include <sys/malloc.h> 46 #include <sys/device.h> 47 #include <sys/ioctl.h> 48 #include <sys/conf.h> 49 #include <sys/file.h> 50 #include <sys/select.h> 51 #include <sys/proc.h> 52 #include <sys/vnode.h> 53 #include <sys/poll.h> 54 #include <sys/bus.h> 55 56 #include <dev/usb/usb.h> 57 #include <dev/usb/usbdi.h> 58 #include <dev/usb/usbdi_util.h> 59 #include <dev/usb/usbdivar.h> 60 61 #include <dev/usb/usbdevs.h> 62 63 #ifdef UIPAD_DEBUG 64 #define DPRINTF(x) if (uipaddebug) printf x 65 #define DPRINTFN(n, x) if (uipaddebug > n) printf x 66 int uipaddebug = 0; 67 #else 68 #define DPRINTF(x) 69 #define DPRINTFN(n, x) 70 #endif 71 72 struct uipad_softc { 73 device_t sc_dev; 74 usbd_device_handle sc_udev; 75 }; 76 77 /* 78 * Note that we do not attach to USB_PRODUCT_RIM_BLACKBERRY_PEARL_DUAL 79 * as we let umass claim the device instead. 80 */ 81 static const struct usb_devno uipad_devs[] = { 82 { USB_VENDOR_APPLE, USB_PRODUCT_APPLE_IPAD }, 83 }; 84 85 #define uipad_lookup(v, p) usb_lookup(uipad_devs, v, p) 86 87 int uipad_match(device_t, cfdata_t, void *); 88 void uipad_attach(device_t, device_t, void *); 89 int uipad_detach(device_t, int); 90 int uipad_activate(device_t, enum devact); 91 92 extern struct cfdriver uipad_cd; 93 CFATTACH_DECL_NEW(uipad, sizeof(struct uipad_softc), uipad_match, 94 uipad_attach, uipad_detach, NULL); 95 96 static void 97 uipad_cmd(struct uipad_softc *sc, uint8_t requestType, uint8_t reqno, 98 uint16_t value, uint16_t index) 99 { 100 usb_device_request_t req; 101 usbd_status err; 102 103 DPRINTF(("ipad cmd type=%x, number=%x, value=%d, index=%d\n", 104 requestType, reqno, value, index)); 105 req.bmRequestType = requestType; 106 req.bRequest = reqno; 107 USETW(req.wValue, value); 108 USETW(req.wIndex, index); 109 USETW(req.wLength, 0); 110 111 if ((err = usbd_do_request(sc->sc_udev, &req, NULL)) != 0) 112 aprint_error_dev(sc->sc_dev, "sending command failed %d\n", 113 err); 114 } 115 116 static void 117 uipad_charge(struct uipad_softc *sc) 118 { 119 if (sc->sc_udev->power != USB_MAX_POWER) 120 uipad_cmd(sc, UT_VENDOR | UT_WRITE, 0x40, 0x6400, 0x6400); 121 } 122 123 int 124 uipad_match(device_t parent, cfdata_t match, void *aux) 125 { 126 struct usb_attach_arg *uaa = aux; 127 128 DPRINTFN(50, ("uipad_match\n")); 129 return uipad_lookup(uaa->vendor, uaa->product) != NULL ? 130 UMATCH_VENDOR_PRODUCT : UMATCH_NONE; 131 } 132 133 void 134 uipad_attach(device_t parent, device_t self, void *aux) 135 { 136 struct uipad_softc *sc = device_private(self); 137 struct usb_attach_arg *uaa = aux; 138 usbd_device_handle dev = uaa->device; 139 char *devinfop; 140 141 DPRINTFN(10,("uipad_attach: sc=%p\n", sc)); 142 143 sc->sc_dev = self; 144 sc->sc_udev = dev; 145 146 aprint_naive("\n"); 147 aprint_normal("\n"); 148 149 devinfop = usbd_devinfo_alloc(dev, 0); 150 aprint_normal_dev(self, "%s\n", devinfop); 151 usbd_devinfo_free(devinfop); 152 153 uipad_charge(sc); 154 155 DPRINTFN(10, ("uipad_attach: %p\n", sc->sc_udev)); 156 157 if (!pmf_device_register(self, NULL, NULL)) 158 aprint_error_dev(self, "couldn't establish power handler\n"); 159 160 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, sc->sc_dev); 161 return; 162 } 163 164 int 165 uipad_detach(device_t self, int flags) 166 { 167 struct uipad_softc *sc = device_private(self); 168 DPRINTF(("uipad_detach: sc=%p flags=%d\n", sc, flags)); 169 170 pmf_device_deregister(self); 171 172 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, sc->sc_dev); 173 174 return 0; 175 } 176