[src/trunk]: src/sys/dev/usb Add a tiny driver that sends the magic command t...

[christos <christos%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/1ae4f8c0fb06
branches:  trunk
changeset: 772361:1ae4f8c0fb06
user:      christos <christos%NetBSD.org@localhost>
date:      Sat Dec 31 00:08:48 2011 +0000

description:
Add a tiny driver that sends the magic command to an ipad instructing it
to charge.

diffstat:

 sys/dev/usb/files.usb |    7 +-
 sys/dev/usb/uipad.c   |  175 ++++++++++++++++++++++++++++++++++++++++++++++++++
 sys/dev/usb/usbdevs   |    3 +-
 3 files changed, 183 insertions(+), 2 deletions(-)

diffs (217 lines):

diff -r b4bec03d8e53 -r 1ae4f8c0fb06 sys/dev/usb/files.usb
--- a/sys/dev/usb/files.usb     Fri Dec 30 21:14:58 2011 +0000
+++ b/sys/dev/usb/files.usb     Sat Dec 31 00:08:48 2011 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: files.usb,v 1.116 2011/11/03 02:41:29 macallan Exp $
+#      $NetBSD: files.usb,v 1.117 2011/12/31 00:08:48 christos Exp $
 #
 # Config file and device description for machine-independent USB code.
 # Included by ports that need it.  Ports that use it must provide
@@ -189,6 +189,11 @@
 attach urio at usbdevif
 file   dev/usb/urio.c                  urio                    needs-flag
 
+# Apple iPad
+device uipad
+attach uipad at usbdevif
+file   dev/usb/uipad.c                         uipad
+
 # BlackBerries
 device uberry
 attach uberry at usbdevif
diff -r b4bec03d8e53 -r 1ae4f8c0fb06 sys/dev/usb/uipad.c
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/dev/usb/uipad.c       Sat Dec 31 00:08:48 2011 +0000
@@ -0,0 +1,175 @@
+/*     $NetBSD: uipad.c,v 1.1 2011/12/31 00:08:48 christos Exp $       */
+
+/*-
+ * Copyright (c) 2011 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Christos Zoulas.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *        This product includes software developed by the NetBSD
+ *        Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific pipadr written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__KERNEL_RCSID(0, "$NetBSD: uipad.c,v 1.1 2011/12/31 00:08:48 christos Exp $");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/malloc.h>
+#include <sys/device.h>
+#include <sys/ioctl.h>
+#include <sys/conf.h>
+#include <sys/file.h>
+#include <sys/select.h>
+#include <sys/proc.h>
+#include <sys/vnode.h>
+#include <sys/poll.h>
+#include <sys/bus.h>
+
+#include <dev/usb/usb.h>
+#include <dev/usb/usbdi.h>
+#include <dev/usb/usbdi_util.h>
+#include <dev/usb/usbdivar.h>
+
+#include <dev/usb/usbdevs.h>
+
+#ifdef UIPAD_DEBUG
+#define DPRINTF(x)     if (uipaddebug) printf x
+#define DPRINTFN(n, x) if (uipaddebug > n) printf x
+int    uipaddebug = 0;
+#else
+#define DPRINTF(x)
+#define DPRINTFN(n, x)
+#endif
+
+struct uipad_softc {
+       device_t                sc_dev;
+       usbd_device_handle      sc_udev;
+};
+
+/*
+ * Note that we do not attach to USB_PRODUCT_RIM_BLACKBERRY_PEARL_DUAL
+ * as we let umass claim the device instead.
+ */
+static const struct usb_devno uipad_devs[] = {
+       { USB_VENDOR_APPLE, USB_PRODUCT_APPLE_IPAD },
+};
+
+#define uipad_lookup(v, p) usb_lookup(uipad_devs, v, p)
+
+int    uipad_match(device_t, cfdata_t, void *);
+void   uipad_attach(device_t, device_t, void *);
+int    uipad_detach(device_t, int);
+int    uipad_activate(device_t, enum devact);
+
+extern struct cfdriver uipad_cd;
+CFATTACH_DECL_NEW(uipad, sizeof(struct uipad_softc), uipad_match,
+    uipad_attach, uipad_detach, NULL);
+
+static void
+uipad_cmd(struct uipad_softc *sc, uint8_t requestType, uint8_t reqno,
+    uint16_t value, uint16_t index)
+{
+       usb_device_request_t req;
+       usbd_status err;
+ 
+       DPRINTF(("ipad cmd type=%x, number=%x, value=%d, index=%d\n",
+           requestType, reqno, value, index));
+        req.bmRequestType = requestType;
+        req.bRequest = reqno;
+        USETW(req.wValue, value); 
+        USETW(req.wIndex, index);
+        USETW(req.wLength, 0);
+   
+        if ((err = usbd_do_request(sc->sc_udev, &req, NULL)) != 0)
+               aprint_error_dev(sc->sc_dev, "sending command failed %d\n",
+                   err);
+}
+
+static void
+uipad_charge(struct uipad_softc *sc)
+{
+       if (sc->sc_udev->power != USB_MAX_POWER)
+               uipad_cmd(sc, UT_VENDOR | UT_WRITE, 0x40, 0x6400, 0x6400);
+}
+
+int 
+uipad_match(device_t parent, cfdata_t match, void *aux)
+{
+       struct usb_attach_arg *uaa = aux;
+
+       DPRINTFN(50, ("uipad_match\n"));
+       return uipad_lookup(uaa->vendor, uaa->product) != NULL ?
+           UMATCH_VENDOR_PRODUCT : UMATCH_NONE;
+}
+
+void 
+uipad_attach(device_t parent, device_t self, void *aux)
+{
+       struct uipad_softc *sc = device_private(self);
+       struct usb_attach_arg *uaa = aux;
+       usbd_device_handle      dev = uaa->device;
+       char                    *devinfop;
+
+       DPRINTFN(10,("uipad_attach: sc=%p\n", sc));
+
+       sc->sc_dev = self;
+       sc->sc_udev = dev;
+
+       aprint_naive("\n");
+       aprint_normal("\n");
+
+       devinfop = usbd_devinfo_alloc(dev, 0);
+       aprint_normal_dev(self, "%s\n", devinfop);
+       usbd_devinfo_free(devinfop);
+
+       uipad_charge(sc);
+
+       DPRINTFN(10, ("uipad_attach: %p\n", sc->sc_udev));
+
+       if (!pmf_device_register(self, NULL, NULL))
+               aprint_error_dev(self, "couldn't establish power handler\n");
+
+       usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, sc->sc_dev);
+       return;
+}
+
+int 
+uipad_detach(device_t self, int flags)
+{
+       struct uipad_softc *sc = device_private(self);
+       DPRINTF(("uipad_detach: sc=%p flags=%d\n", sc, flags));
+
+       pmf_device_deregister(self);
+
+       usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, sc->sc_dev);
+
+       return 0;
+}
diff -r b4bec03d8e53 -r 1ae4f8c0fb06 sys/dev/usb/usbdevs
--- a/sys/dev/usb/usbdevs       Fri Dec 30 21:14:58 2011 +0000
+++ b/sys/dev/usb/usbdevs       Sat Dec 31 00:08:48 2011 +0000
@@ -1,4 +1,4 @@
-$NetBSD: usbdevs,v 1.602 2011/11/26 18:34:17 nonaka Exp $
+$NetBSD: usbdevs,v 1.603 2011/12/31 00:08:48 christos Exp $
 
 /*
  * Copyright (c) 1998-2004 The NetBSD Foundation, Inc.
@@ -796,6 +796,7 @@
 product APPLE IPOD_TOUCH       0x1291  iPod Touch
 product APPLE IPHONE_3G                0x1292  iPhone 3G
 product APPLE IPHONE_3GS       0x1294  iPhone 3GS
+product APPLE IPAD             0x129a  Apple iPad
 product APPLE ETHERNET         0x1402  Apple USB to Ethernet
 
 /* ArkMicroChips products */