1/* $NetBSD: uipad.c,v 1.2 2016/04/23 10:15:32 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 1.2 2016/04/23 10:15:32 skrll Exp $");
41
42#include <sys/param.h>
43#include <sys/systm.h>
44#include <sys/kernel.h>
45#include <sys/device.h>
46#include <sys/ioctl.h>
47#include <sys/conf.h>
48#include <sys/file.h>
49#include <sys/select.h>
50#include <sys/proc.h>
51#include <sys/vnode.h>
52#include <sys/poll.h>
53#include <sys/bus.h>
54
55#include <dev/usb/usb.h>
56#include <dev/usb/usbdi.h>
57#include <dev/usb/usbdi_util.h>
58#include <dev/usb/usbdivar.h>
59
60#include <dev/usb/usbdevs.h>
61
62#ifdef UIPAD_DEBUG
63#define DPRINTF(x) if (uipaddebug) printf x
64#define DPRINTFN(n, x) if (uipaddebug > n) printf x
65int uipaddebug = 0;
66#else
67#define DPRINTF(x)
68#define DPRINTFN(n, x)
69#endif
70
71struct uipad_softc {
72 device_t sc_dev;
73 struct usbd_device * sc_udev;
74};
75
76/*
77 * Note that we do not attach to USB_PRODUCT_RIM_BLACKBERRY_PEARL_DUAL
78 * as we let umass claim the device instead.
79 */
80static const struct usb_devno uipad_devs[] = {
81 { USB_VENDOR_APPLE, USB_PRODUCT_APPLE_IPAD },
82};
83
84#define uipad_lookup(v, p) usb_lookup(uipad_devs, v, p)
85
86int uipad_match(device_t, cfdata_t, void *);
87void uipad_attach(device_t, device_t, void *);
88int uipad_detach(device_t, int);
89int uipad_activate(device_t, enum devact);
90
91extern struct cfdriver uipad_cd;
92CFATTACH_DECL_NEW(uipad, sizeof(struct uipad_softc), uipad_match,
93 uipad_attach, uipad_detach, NULL);
94
95static void
96uipad_cmd(struct uipad_softc *sc, uint8_t requestType, uint8_t reqno,
97 uint16_t value, uint16_t index)
98{
99 usb_device_request_t req;
100 usbd_status err;
101
102 DPRINTF(("ipad cmd type=%x, number=%x, value=%d, index=%d\n",
103 requestType, reqno, value, index));
104 req.bmRequestType = requestType;
105 req.bRequest = reqno;
106 USETW(req.wValue, value);
107 USETW(req.wIndex, index);
108 USETW(req.wLength, 0);
109
110 if ((err = usbd_do_request(sc->sc_udev, &req, NULL)) != 0)
111 aprint_error_dev(sc->sc_dev, "sending command failed %d\n",
112 err);
113}
114
115static void
116uipad_charge(struct uipad_softc *sc)
117{
118 if (sc->sc_udev->ud_power != USB_MAX_POWER)
119 uipad_cmd(sc, UT_VENDOR | UT_WRITE, 0x40, 0x6400, 0x6400);
120}
121
122int
123uipad_match(device_t parent, cfdata_t match, void *aux)
124{
125 struct usb_attach_arg *uaa = aux;
126
127 DPRINTFN(50, ("uipad_match\n"));
128 return uipad_lookup(uaa->uaa_vendor, uaa->uaa_product) != NULL ?
129 UMATCH_VENDOR_PRODUCT : UMATCH_NONE;
130}
131
132void
133uipad_attach(device_t parent, device_t self, void *aux)
134{
135 struct uipad_softc *sc = device_private(self);
136 struct usb_attach_arg *uaa = aux;
137 struct usbd_device * dev = uaa->uaa_device;
138 char *devinfop;
139
140 DPRINTFN(10,("uipad_attach: sc=%p\n", sc));
141
142 sc->sc_dev = self;
143 sc->sc_udev = dev;
144
145 aprint_naive("\n");
146 aprint_normal("\n");
147
148 devinfop = usbd_devinfo_alloc(dev, 0);
149 aprint_normal_dev(self, "%s\n", devinfop);
150 usbd_devinfo_free(devinfop);
151
152 uipad_charge(sc);
153
154 DPRINTFN(10, ("uipad_attach: %p\n", sc->sc_udev));
155
156 if (!pmf_device_register(self, NULL, NULL))
157 aprint_error_dev(self, "couldn't establish power handler\n");
158
159 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, sc->sc_dev);
160 return;
161}
162
163int
164uipad_detach(device_t self, int flags)
165{
166 struct uipad_softc *sc = device_private(self);
167 DPRINTF(("uipad_detach: sc=%p flags=%d\n", sc, flags));
168
169 pmf_device_deregister(self);
170
171 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, sc->sc_dev);
172
173 return 0;
174}
175