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fc54b9bf15
(stable-branch of Openmoko) git-svn-id: svn://svn.openwrt.org/openwrt/trunk@13613 3c298f89-4303-0410-b956-a3cf2f4a3e73
177 lines
6.0 KiB
Diff
177 lines
6.0 KiB
Diff
From 71f219082f5c04a80f9b143fc92a51a3de5c6683 Mon Sep 17 00:00:00 2001
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From: \\\\\\\"Mike (mwester)\\\\\\ <mwester@dls.net>
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Date: Tue, 14 Oct 2008 05:46:34 +0100
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Subject: [PATCH] suppress "onkey" events on resume [Was: Re: Where are actions configured for buttons in FSO?]
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Michael 'Mickey' Lauer wrote:
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...
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> The problem is (and this is the reason why I'm crossposting this to the
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> kernel mailing list), the kernel is not swallowing the power button
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> presses that triggers the resume, so you need some "real" programming
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> (as opposed to the expressional complexity of our rules) in order to
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> prevent falling asleep right after resume.
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>
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> Kernel-guys, can we change that?
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suppress-resume-onkey-event.patch
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This suppresses the key press and key release events from the
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power button, in the case where the power button is the wake
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event for the GTA01 or GTA02 device.
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Signed-off-by: Mike Westerhof <mwester@dls.net>
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---
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drivers/i2c/chips/pcf50606.c | 34 +++++++++++++++++++++++++++++-----
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drivers/i2c/chips/pcf50633.c | 30 ++++++++++++++++++++++++++----
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2 files changed, 55 insertions(+), 9 deletions(-)
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diff --git a/drivers/i2c/chips/pcf50606.c b/drivers/i2c/chips/pcf50606.c
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index 18263fb..706ce6d 100644
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--- a/drivers/i2c/chips/pcf50606.c
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+++ b/drivers/i2c/chips/pcf50606.c
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@@ -120,6 +120,7 @@ struct pcf50606_data {
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int onkey_seconds;
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int irq;
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int coldplug_done;
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+ int suppress_onkey_events;
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enum pcf50606_suspend_states suspend_state;
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#ifdef CONFIG_PM
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struct {
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@@ -656,9 +657,21 @@ static void pcf50606_work(struct work_struct *work)
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*
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* pcf50606 resume is really really over now then.
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*/
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- if (pcf->suspend_state != PCF50606_SS_RUNNING)
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+ if (pcf->suspend_state != PCF50606_SS_RUNNING) {
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pcf->suspend_state = PCF50606_SS_RUNNING;
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+ /* peek at the IRQ reason, if power button then set a flag
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+ * so that we do not signal the event to userspace
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+ */
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+ if (pcfirq[0] & (PCF50606_INT1_ONKEYF | PCF50606_INT1_ONKEYR)) {
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+ pcf->suppress_onkey_events = 1;
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+ dev_dbg(&pcf->client.dev,
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+ "Wake by ONKEY, suppressing ONKEY events");
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+ } else {
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+ pcf->suppress_onkey_events = 0;
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+ }
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+ }
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+
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if (!pcf->coldplug_done) {
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DEBUGPC("PMU Coldplug init\n");
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@@ -689,9 +702,13 @@ static void pcf50606_work(struct work_struct *work)
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if (pcfirq[0] & PCF50606_INT1_ONKEYF) {
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/* ONKEY falling edge (start of button press) */
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- DEBUGPC("ONKEYF ");
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pcf->flags |= PCF50606_F_PWR_PRESSED;
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- input_report_key(pcf->input_dev, KEY_POWER, 1);
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+ if (!pcf->suppress_onkey_events) {
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+ DEBUGPC("ONKEYF ");
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+ input_report_key(pcf->input_dev, KEY_POWER, 1);
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+ } else {
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+ DEBUGPC("ONKEYF(unreported) ");
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+ }
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}
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if (pcfirq[0] & PCF50606_INT1_ONKEY1S) {
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/* ONKEY pressed for more than 1 second */
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@@ -706,10 +723,16 @@ static void pcf50606_work(struct work_struct *work)
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}
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if (pcfirq[0] & PCF50606_INT1_ONKEYR) {
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/* ONKEY rising edge (end of button press) */
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- DEBUGPC("ONKEYR ");
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pcf->flags &= ~PCF50606_F_PWR_PRESSED;
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pcf->onkey_seconds = -1;
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- input_report_key(pcf->input_dev, KEY_POWER, 0);
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+ if (!pcf->suppress_onkey_events) {
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+ DEBUGPC("ONKEYR ");
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+ input_report_key(pcf->input_dev, KEY_POWER, 0);
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+ } else {
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+ DEBUGPC("ONKEYR(suppressed) ");
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+ /* don't suppress any more power button events */
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+ pcf->suppress_onkey_events = 0;
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+ }
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/* disable SECOND interrupt in case RTC didn't
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* request it */
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if (!(pcf->flags & PCF50606_F_RTC_SECOND))
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@@ -1766,6 +1789,7 @@ static int pcf50606_detect(struct i2c_adapter *adapter, int address, int kind)
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INIT_WORK(&data->work, pcf50606_work);
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data->irq = irq;
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data->working = 0;
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+ data->suppress_onkey_events = 0;
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data->onkey_seconds = -1;
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data->pdata = pcf50606_pdev->dev.platform_data;
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diff --git a/drivers/i2c/chips/pcf50633.c b/drivers/i2c/chips/pcf50633.c
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index c186fdb..490e34d 100644
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--- a/drivers/i2c/chips/pcf50633.c
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+++ b/drivers/i2c/chips/pcf50633.c
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@@ -135,6 +135,7 @@ struct pcf50633_data {
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int usb_removal_count;
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u8 pcfirq_resume[5];
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int probe_completed;
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+ int suppress_onkey_events;
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/* if he pulls battery while charging, we notice that and correctly
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* report that the charger is idle. But there is no interrupt that
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@@ -848,6 +849,16 @@ static void pcf50633_work(struct work_struct *work)
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/* pcf50633 resume is really really over now then */
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pcf->suspend_state = PCF50633_SS_RUNNING;
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+
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+ /* peek at the IRQ reason, if power button then set a flag
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+ * so that we do not signal the event to userspace
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+ */
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+ if (pcfirq[1] & (PCF50633_INT2_ONKEYF | PCF50633_INT2_ONKEYR)) {
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+ pcf->suppress_onkey_events = 1;
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+ DEBUGP("Wake by ONKEY, suppressing ONKEY event");
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+ } else {
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+ pcf->suppress_onkey_events = 0;
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+ }
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}
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if (!pcf->coldplug_done) {
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@@ -988,16 +999,26 @@ static void pcf50633_work(struct work_struct *work)
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if (pcfirq[1] & PCF50633_INT2_ONKEYF) {
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/* ONKEY falling edge (start of button press) */
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- DEBUGPC("ONKEYF ");
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pcf->flags |= PCF50633_F_PWR_PRESSED;
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- input_report_key(pcf->input_dev, KEY_POWER, 1);
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+ if (!pcf->suppress_onkey_events) {
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+ DEBUGPC("ONKEYF ");
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+ input_report_key(pcf->input_dev, KEY_POWER, 1);
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+ } else {
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+ DEBUGPC("ONKEYF(unreported) ");
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+ }
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}
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if (pcfirq[1] & PCF50633_INT2_ONKEYR) {
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/* ONKEY rising edge (end of button press) */
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- DEBUGPC("ONKEYR ");
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pcf->flags &= ~PCF50633_F_PWR_PRESSED;
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pcf->onkey_seconds = -1;
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- input_report_key(pcf->input_dev, KEY_POWER, 0);
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+ if (!pcf->suppress_onkey_events) {
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+ DEBUGPC("ONKEYR ");
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+ input_report_key(pcf->input_dev, KEY_POWER, 0);
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+ } else {
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+ DEBUGPC("ONKEYR(unreported) ");
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+ /* don't suppress any more power button events */
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+ pcf->suppress_onkey_events = 0;
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+ }
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/* disable SECOND interrupt in case RTC didn't
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* request it */
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if (!(pcf->flags & PCF50633_F_RTC_SECOND))
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@@ -2135,6 +2156,7 @@ static int pcf50633_detect(struct i2c_adapter *adapter, int address, int kind)
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INIT_WORK(&pcf->work_usb_curlimit, pcf50633_work_usbcurlim);
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pcf->irq = irq;
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pcf->working = 0;
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+ pcf->suppress_onkey_events = 0;
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pcf->onkey_seconds = -1;
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pcf->pdata = pcf50633_pdev->dev.platform_data;
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--
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1.5.6.5
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