[Qemu-arm] [PATCH v4 6/8] ARM: ACPI: Add _E03 for Power Button

[Shannon Zhao]

From: Shannon Zhao <address@hidden>

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

Signed-off-by: Shannon Zhao <address@hidden>
Signed-off-by: Shannon Zhao <address@hidden>
Tested-by: Wei Huang <address@hidden>
---
 hw/arm/virt-acpi-build.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c
index 1424672..d693135 100644
--- a/hw/arm/virt-acpi-build.c
+++ b/hw/arm/virt-acpi-build.c
@@ -338,6 +338,20 @@ 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 */
+    const uint32_t pin_list[1] = {3};
+    aml_append(aei, aml_gpio_int(AML_CONSUMER_PRODUCER, AML_EDGE,
+                                 AML_ACTIVE_HIGH, AML_EXCLUSIVE, AML_PULL_UP, 
0,
+                                 pin_list, 1, "GPO0", NULL, 0));
+    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(ACPI_POWER_BUTTON_DEVICE),
+                                  aml_int(0x80)));
+    aml_append(dev, method);
     aml_append(scope, dev);
 }
 
-- 
2.0.4