This patch adds an input device for the power button so that userspace gets
notified about the user pressing it via the standard input layer.
Signed-off-by: Johannes Berg <[EMAIL PROTECTED]>
--- linux-2.6.orig/drivers/macintosh/Makefile 2006-04-28 19:07:27.057288704
+0200
+++ linux-2.6/drivers/macintosh/Makefile 2006-04-28 19:07:49.987288704
+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
+++ linux-2.6/drivers/macintosh/via-pmu-event.c 2006-04-28 20:35:12.277288704
+0200
@@ -0,0 +1,35 @@
+#include <linux/input.h>
+#include "via-pmu-event.h"
+
+static struct input_dev *pmu_input_dev;
+
+int pmu_event_init(void)
+{
+ pmu_input_dev = input_allocate_device();
+ if (unlikely(!pmu_input_dev))
+ return -ENODEV;
+
+ pmu_input_dev->name = "PMU powerbutton";
+ pmu_input_dev->id.bustype = BUS_PMU;
+ pmu_input_dev->id.vendor = 0x0001;
+ pmu_input_dev->id.product = 0x0001;
+ pmu_input_dev->id.version = 0x0100;
+
+ pmu_input_dev->evbit[0] = BIT(EV_KEY);
+ pmu_input_dev->keybit[LONG(KEY_POWER)] = BIT(KEY_POWER);
+
+ return input_register_device(pmu_input_dev);
+}
+
+void pmu_event_powerbutton(int down)
+{
+ static int powerbutton_pressed;
+
+ if (unlikely(!pmu_input_dev))
+ return;
+ if (powerbutton_pressed == down)
+ return;
+ powerbutton_pressed = down;
+ input_report_key(pmu_input_dev, KEY_POWER, down);
+ input_sync(pmu_input_dev);
+}
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6/drivers/macintosh/via-pmu-event.h 2006-04-28 20:09:34.967288704
+0200
@@ -0,0 +1,8 @@
+#ifndef __VIA_PMU_EVENT_H
+#define __VIA_PMU_EVENT_H
+
+extern int pmu_event_init(void);
+
+extern void pmu_event_powerbutton(int down);
+
+#endif /* __VIA_PMU_EVENT_H */
--- linux-2.6.orig/include/linux/input.h 2006-04-28 20:00:37.417288704
+0200
+++ linux-2.6/include/linux/input.h 2006-04-28 20:00:48.157288704 +0200
@@ -658,6 +658,7 @@ struct input_absinfo {
#define BUS_I2C 0x18
#define BUS_HOST 0x19
#define BUS_GSC 0x1A
+#define BUS_PMU 0x20
/*
* Values describing the status of an effect
--- linux-2.6.orig/drivers/macintosh/via-pmu.c 2006-04-28 19:07:19.207288704
+0200
+++ linux-2.6/drivers/macintosh/via-pmu.c 2006-04-28 20:35:23.417288704
+0200
@@ -70,6 +70,7 @@
#endif
#include "via-pmu-led.h"
+#include "via-pmu-event.h"
/* Some compile options */
#undef SUSPEND_USES_PMU
@@ -1443,6 +1444,11 @@ next:
if (pmu_battery_count)
query_battery_state();
pmu_pass_intr(data, len);
+ /* if the thing has the powerbutton bit set then
+ * update the powerbutton key status */
+ if (len == 6) {
+ pmu_event_powerbutton(!!(data[1]&8));
+ }
} else {
pmu_pass_intr(data, len);
}
@@ -2915,6 +2921,10 @@ static int __init init_pmu_led(void)
if (pmu_led_init()) {
printk(KERN_WARNING "via-pmu: LED failed to init\n");
}
+
+ /* only on keylargo can the power button be on the pmu ... */
+ if (pmu_event_init())
+ printk(KERN_WARNING "via-pmu: couldn't add event
device");
}
return 0;
--
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