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Subject[patch] via-pmu: add input device
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New version of this patch.

Should I split it up into two, one for the change to input.h and one for
the change in via-pmu?

Ben, what about recognising the PMU here? What else can it report/what
else should I pick up? What about older versions?

---
This patch adds an input device for the button and lid switch
so that userspace gets notified about the user pressing them
via the standard input layer.

Cc: Pavel Machek <pavel@suse.cz>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: linux-input@atrey.karlin.mff.cuni.cz
Cc: Dmitry Torokhov <dtor_core@ameritech.net>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>

--- wireless-dev.orig/drivers/macintosh/Makefile 2006-05-02 13:42:26.992596627 +0200
+++ wireless-dev/drivers/macintosh/Makefile 2006-05-02 13:42:27.052596627 +0200
@@ -11,7 +11,7 @@ obj-$(CONFIG_MAC_EMUMOUSEBTN) += mac_hid
obj-$(CONFIG_INPUT_ADBHID) += adbhid.o
obj-$(CONFIG_ANSLCD) += ans-lcd.o

-obj-$(CONFIG_ADB_PMU) += via-pmu.o
+obj-$(CONFIG_ADB_PMU) += via-pmu.o via-pmu-event.o
obj-$(CONFIG_ADB_PMU_LED) += via-pmu-led.o
obj-$(CONFIG_ADB_CUDA) += via-cuda.o
obj-$(CONFIG_PMAC_APM_EMU) += apm_emu.o
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ wireless-dev/drivers/macintosh/via-pmu-event.c 2006-05-05 17:00:24.718326302 +0200
@@ -0,0 +1,75 @@
+/*
+ * via-pmu event device for reporting some events that come through the PMU
+ *
+ * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
+ * NON INFRINGEMENT. See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ */
+
+#include <linux/input.h>
+#include <linux/adb.h>
+#include <linux/pmu.h>
+#include "via-pmu-event.h"
+
+static struct input_dev *pmu_input_dev;
+
+static int pmu_event_init(void)
+{
+ /* do other models report button/lid status? */
+ if (pmu_get_model() != PMU_KEYLARGO_BASED)
+ return -ENODEV;
+
+ pmu_input_dev = input_allocate_device();
+ if (!pmu_input_dev)
+ return -ENODEV;
+
+ pmu_input_dev->name = "PMU";
+ pmu_input_dev->id.bustype = BUS_HOST;
+ pmu_input_dev->id.vendor = 0x0001;
+ pmu_input_dev->id.product = 0x0001;
+ pmu_input_dev->id.version = 0x0100;
+
+ set_bit(EV_KEY, pmu_input_dev->evbit);
+ set_bit(EV_SW, pmu_input_dev->evbit);
+ set_bit(KEY_POWER, pmu_input_dev->keybit);
+ set_bit(SW_LID, pmu_input_dev->swbit);
+
+ return input_register_device(pmu_input_dev);
+}
+
+void pmu_event(int key, int down)
+{
+
+ if (unlikely(!pmu_input_dev))
+ return;
+
+ switch (key) {
+ case PMU_EVT_POWER:
+ input_report_key(pmu_input_dev, KEY_POWER, down);
+ break;
+ case PMU_EVT_LID:
+ input_report_switch(pmu_input_dev, SW_LID, down);
+ break;
+ default:
+ /* no such key handled */
+ return;
+ }
+
+ input_sync(pmu_input_dev);
+}
+
+late_initcall(pmu_event_init);
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ wireless-dev/drivers/macintosh/via-pmu-event.h 2006-05-02 13:42:27.052596627 +0200
@@ -0,0 +1,8 @@
+#ifndef __VIA_PMU_EVENT_H
+#define __VIA_PMU_EVENT_H
+
+#define PMU_EVT_POWER 0
+#define PMU_EVT_LID 1
+extern void pmu_event(int key, int down);
+
+#endif /* __VIA_PMU_EVENT_H */
--- wireless-dev.orig/include/linux/input.h 2006-05-02 13:42:23.842596627 +0200
+++ wireless-dev/include/linux/input.h 2006-05-04 13:08:39.821539002 +0200
@@ -577,7 +577,9 @@ struct input_absinfo {
* Switch events
*/

-#define SW_0 0x00
+#define SW_LID 0x00
+/* numeric ones should go away */
+#define SW_0 SW_LID
#define SW_1 0x01
#define SW_2 0x02
#define SW_3 0x03
--- wireless-dev.orig/drivers/macintosh/via-pmu.c 2006-05-02 13:42:23.782596627 +0200
+++ wireless-dev/drivers/macintosh/via-pmu.c 2006-05-02 13:42:27.122596627 +0200
@@ -69,6 +69,8 @@
#include <asm/open_pic.h>
#endif

+#include "via-pmu-event.h"
+
/* Some compile options */
#undef SUSPEND_USES_PMU
#define DEBUG_SLEEP
@@ -1441,6 +1443,12 @@ next:
if (pmu_battery_count)
query_battery_state();
pmu_pass_intr(data, len);
+ /* len == 6 is probably a bad check. But how do I
+ * know what PMU versions send what events here? */
+ if (len == 6) {
+ pmu_event(PMU_EVT_POWER, !!(data[1]&8));
+ pmu_event(PMU_EVT_LID, data[1]&1);
+ }
} else {
pmu_pass_intr(data, len);
}

-
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