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[Qemu-devel] [PATCH 4/7] hw/acpi/aml-build: Add aml_gpio_int() term
From: |
shannon . zhao |
Subject: |
[Qemu-devel] [PATCH 4/7] hw/acpi/aml-build: Add aml_gpio_int() term |
Date: |
Tue, 12 May 2015 12:24:13 +0800 |
From: Shannon Zhao <address@hidden>
Signed-off-by: Shannon Zhao <address@hidden>
Signed-off-by: Shannon Zhao <address@hidden>
---
hw/acpi/aml-build.c | 60 +++++++++++++++++++++++++++++++++++++++++++++
include/hw/acpi/aml-build.h | 16 ++++++++++++
2 files changed, 76 insertions(+)
diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
index 643e885..40d7fa0 100644
--- a/hw/acpi/aml-build.c
+++ b/hw/acpi/aml-build.c
@@ -525,6 +525,66 @@ Aml *aml_call4(const char *method, Aml *arg1, Aml *arg2,
Aml *arg3, Aml *arg4)
}
/*
+ * ACPI 5.0: 19.5.53
+ * GpioInt(GPIO Interrupt Connection Resource Descriptor Macro)
+ */
+Aml *aml_gpio_int(AmlLevelAndEdge level_and_edge,
+ AmlActiveHighAndLow high_and_low,
+ AmlExclusiveAndShared exclusive_and_shared,
+ AmlWakeCap wake_capable, AmlPinConfig pin_cfg,
+ int32_t pin_num, const char *name)
+{
+ Aml *var = aml_alloc();
+ uint8_t flags = level_and_edge | (high_and_low << 1)
+ | (exclusive_and_shared << 3) | (wake_capable << 4);
+
+ build_append_byte(var->buf, 0x8C); /* GpioInt Resource Descriptor */
+ /* Length */
+ build_append_byte(var->buf, 0x1B); /* bits[7:0] */
+ build_append_byte(var->buf, 0); /* bits[15:8] */
+ build_append_byte(var->buf, 1); /* Revision ID */
+ /* GPIO Connection Type 0x00 = Interrupt Connection */
+ build_append_byte(var->buf, 0);
+ /* General Flags */
+ build_append_byte(var->buf, 1); /* bits[7:0] */
+ build_append_byte(var->buf, 0); /* bits[15:8] */
+ /* Interrupt and IO Flags */
+ build_append_byte(var->buf, flags); /* bits[7:0] */
+ build_append_byte(var->buf, 0); /* bits[15:8] */
+ /* Pin Configuration 0 = Default 1 = Pull-up 2 = Pull-down 3 = No Pull */
+ build_append_byte(var->buf, pin_cfg);
+ /* Output Drive Strength */
+ build_append_byte(var->buf, 0); /* bits[7:0] */
+ build_append_byte(var->buf, 0); /* bits[15:8] */
+ /* Debounce timeout */
+ build_append_byte(var->buf, 0); /* bits[7:0] */
+ build_append_byte(var->buf, 0); /* bits[15:8] */
+
+ /* Pin Table Offset */
+ build_append_byte(var->buf, 0x17); /* bits[7:0] */
+ build_append_byte(var->buf, 0); /* bits[15:8] */
+ /* Resource Source Index */
+ build_append_byte(var->buf, 0);
+ /* Resource Source Name */
+ build_append_byte(var->buf, 0x19); /* bits[7:0] */
+ build_append_byte(var->buf, 0); /* bits[15:8] */
+ /* Vendor Data Offse */
+ build_append_byte(var->buf, 0x1E); /* bits[7:0] */
+ build_append_byte(var->buf, 0); /* bits[15:8] */
+ /* Vendor Data Length */
+ build_append_byte(var->buf, 0); /* bits[7:0] */
+ build_append_byte(var->buf, 0); /* bits[15:8] */
+ /* Pin Numbe */
+ build_append_byte(var->buf, pin_num & 0xff); /* bits[7:0] */
+ build_append_byte(var->buf, (pin_num >> 8) & 0xff); /* bits[15:8] */
+ /* Resource Source */
+ build_append_namestring(var->buf, "%s", name);
+ build_append_byte(var->buf, '\0');
+
+ return var;
+}
+
+/*
* ACPI 1.0: 6.4.3.4 Memory32Fixed (Memory Resource Descriptor Macro)
*/
Aml *aml_memory32_fixed(uint32_t addr, uint32_t size,
diff --git a/include/hw/acpi/aml-build.h b/include/hw/acpi/aml-build.h
index 39b44e4..b95a8e8 100644
--- a/include/hw/acpi/aml-build.h
+++ b/include/hw/acpi/aml-build.h
@@ -150,6 +150,17 @@ typedef enum {
aml_wake_capable = 1,
} AmlWakeCap;
+/*
+ * ACPI 5.0: Table 6-189 GPIO Connection Descriptor Definition
+ * _PPI field definition
+ */
+typedef enum {
+ aml_default_config = 0,
+ aml_pull_up = 1,
+ aml_pull_down = 2,
+ aml_no_pull = 3,
+} AmlPinConfig;
+
typedef
struct AcpiBuildTables {
GArray *table_data;
@@ -208,6 +219,11 @@ Aml *aml_call1(const char *method, Aml *arg1);
Aml *aml_call2(const char *method, Aml *arg1, Aml *arg2);
Aml *aml_call3(const char *method, Aml *arg1, Aml *arg2, Aml *arg3);
Aml *aml_call4(const char *method, Aml *arg1, Aml *arg2, Aml *arg3, Aml *arg4);
+Aml *aml_gpio_int(AmlLevelAndEdge level_and_edge,
+ AmlActiveHighAndLow high_and_low,
+ AmlExclusiveAndShared exclusive_and_shared,
+ AmlWakeCap wake_capable, AmlPinConfig pin_cfg,
+ int32_t pin_num, const char *name);
Aml *aml_memory32_fixed(uint32_t addr, uint32_t size,
AmlReadAndWrite read_and_write);
Aml *aml_interrupt(AmlConsumerAndProducer con_and_pro,
--
2.1.0