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| author | Lv Zheng <lv.zheng@intel.com> | 2016-08-04 10:43:45 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2016-08-17 02:10:44 +0200 |
| commit | 18864cc4892d207bf8bb81898f5dc7fe9e66d6f0 (patch) | |
| tree | 1417480fa88b43c2ed0dc44877bce460555185f0 /drivers/acpi/sysfs.c | |
| parent | ACPICA: Update version to 20160729 (diff) | |
| download | linux-18864cc4892d207bf8bb81898f5dc7fe9e66d6f0.tar.xz linux-18864cc4892d207bf8bb81898f5dc7fe9e66d6f0.zip | |
ACPI / sysfs: Use new GPE masking mechanism in GPE interface
Now GPE can be masked via the new acpi_mask_gpe() API and this patch
modifies /sys/firmware/acpi/interrupts/gpexx to use this new facility.
Writes "mask/unmask" to this file now invokes acpi_mask_gpe().
Reads from this file now returns new "EN/STS" when the corresponding GPE
hardware register's EN/STS bits are flagged, and new "masked/unmasked"
attribute to indicate the status of the masking mechanism.
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
[ rjw: Subject ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/sysfs.c')
| -rw-r--r-- | drivers/acpi/sysfs.c | 33 |
1 files changed, 25 insertions, 8 deletions
diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c index 358165e9f5b8..703c993888b2 100644 --- a/drivers/acpi/sysfs.c +++ b/drivers/acpi/sysfs.c @@ -597,14 +597,27 @@ static ssize_t counter_show(struct kobject *kobj, if (result) goto end; + if (status & ACPI_EVENT_FLAG_ENABLE_SET) + size += sprintf(buf + size, " EN"); + else + size += sprintf(buf + size, " "); + if (status & ACPI_EVENT_FLAG_STATUS_SET) + size += sprintf(buf + size, " STS"); + else + size += sprintf(buf + size, " "); + if (!(status & ACPI_EVENT_FLAG_HAS_HANDLER)) - size += sprintf(buf + size, " invalid"); + size += sprintf(buf + size, " invalid "); else if (status & ACPI_EVENT_FLAG_ENABLED) - size += sprintf(buf + size, " enabled"); + size += sprintf(buf + size, " enabled "); else if (status & ACPI_EVENT_FLAG_WAKE_ENABLED) - size += sprintf(buf + size, " wake_enabled"); + size += sprintf(buf + size, " wake_enabled"); else - size += sprintf(buf + size, " disabled"); + size += sprintf(buf + size, " disabled "); + if (status & ACPI_EVENT_FLAG_MASKED) + size += sprintf(buf + size, " masked "); + else + size += sprintf(buf + size, " unmasked"); end: size += sprintf(buf + size, "\n"); @@ -655,8 +668,12 @@ static ssize_t counter_set(struct kobject *kobj, !(status & ACPI_EVENT_FLAG_ENABLED)) result = acpi_enable_gpe(handle, index); else if (!strcmp(buf, "clear\n") && - (status & ACPI_EVENT_FLAG_SET)) + (status & ACPI_EVENT_FLAG_STATUS_SET)) result = acpi_clear_gpe(handle, index); + else if (!strcmp(buf, "mask\n")) + result = acpi_mask_gpe(handle, index, TRUE); + else if (!strcmp(buf, "unmask\n")) + result = acpi_mask_gpe(handle, index, FALSE); else if (!kstrtoul(buf, 0, &tmp)) all_counters[index].count = tmp; else @@ -664,13 +681,13 @@ static ssize_t counter_set(struct kobject *kobj, } else if (index < num_gpes + ACPI_NUM_FIXED_EVENTS) { int event = index - num_gpes; if (!strcmp(buf, "disable\n") && - (status & ACPI_EVENT_FLAG_ENABLED)) + (status & ACPI_EVENT_FLAG_ENABLE_SET)) result = acpi_disable_event(event, ACPI_NOT_ISR); else if (!strcmp(buf, "enable\n") && - !(status & ACPI_EVENT_FLAG_ENABLED)) + !(status & ACPI_EVENT_FLAG_ENABLE_SET)) result = acpi_enable_event(event, ACPI_NOT_ISR); else if (!strcmp(buf, "clear\n") && - (status & ACPI_EVENT_FLAG_SET)) + (status & ACPI_EVENT_FLAG_STATUS_SET)) result = acpi_clear_event(event); else if (!kstrtoul(buf, 0, &tmp)) all_counters[index].count = tmp; |