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
uipad_cmd(struct uipad_softc * sc,uint8_t requestType,uint8_t reqno,uint16_t value,uint16_t index)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
uipad_charge(struct uipad_softc * sc)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
uipad_match(device_t parent,cfdata_t match,void * aux)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
uipad_attach(device_t parent,device_t self,void * aux)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
uipad_detach(device_t self,int flags)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