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[v3,6/8] hw/arm/virt-acpi-build: Add _E03 for Power Button

Message ID 1447680189-2128-7-git-send-email-shannon.zhao@linaro.org
State New
Headers show

Commit Message

Shannon Zhao Nov. 16, 2015, 1:23 p.m. UTC 
From: Shannon Zhao <shannon.zhao@linaro.org>


Here GPIO pin 3 is used for Power Button, add _E03 in ACPI DSDT table.

Signed-off-by: Shannon Zhao <zhaoshenglong@huawei.com>

Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>

Tested-by: Wei Huang <wei@redhat.com>

---
 hw/arm/virt-acpi-build.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

-- 
2.1.0
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Patch

diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c
index b25c90b..12c9e8b 100644
--- a/hw/arm/virt-acpi-build.c
+++ b/hw/arm/virt-acpi-build.c
@@ -337,6 +337,19 @@  static void acpi_dsdt_add_gpio(Aml *scope, const MemMapEntry *gpio_memmap,
     aml_append(crs, aml_interrupt(AML_CONSUMER, AML_LEVEL, AML_ACTIVE_HIGH,
                                   AML_EXCLUSIVE, gpio_irq));
     aml_append(dev, aml_name_decl("_CRS", crs));
+
+    Aml *aei = aml_resource_template();
+    /* Pin 3 for power button */
+    int32_t pin_num[1] = {3};
+    aml_append(aei, aml_gpio_int(AML_CONSUMER_PRODUCER, AML_EDGE,
+                                 AML_ACTIVE_HIGH, AML_EXCLUSIVE, AML_PULL_UP, 0,
+                                 pin_num, 1, "GPO0", NULL));
+    aml_append(dev, aml_name_decl("_AEI", aei));
+
+    /* _E03 is handle for power button */
+    Aml *method = aml_method("_E03", 0);
+    aml_append(method, aml_notify(aml_name("PWRB"), aml_int(0x80)));
+    aml_append(dev, method);
     aml_append(scope, dev);
 }