[edk2,2/3] EmbeddedPkg: enhance for multiple gpio controllers

Message ID 1439888692-2304-1-git-send-email-haojian.zhuang@linaro.org
State New
Headers show

Commit Message

Haojian Zhuang Aug. 18, 2015, 9:04 a.m.
EmbeddedGpio only supports one gpio controller in one platform. Now create
PLATFORM_GPIO_CONTROLLER to support multiple gpio controllers in one platform.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
---
 EmbeddedPkg/EmbeddedPkg.dec                 |  1 +
 EmbeddedPkg/Include/Protocol/EmbeddedGpio.h | 18 ++++++++++++++++++
 2 files changed, 19 insertions(+)

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diff --git a/EmbeddedPkg/EmbeddedPkg.dec b/EmbeddedPkg/EmbeddedPkg.dec
index 4bac580..bd3e301 100644
--- a/EmbeddedPkg/EmbeddedPkg.dec
+++ b/EmbeddedPkg/EmbeddedPkg.dec
@@ -65,6 +65,7 @@ 
   gAndroidFastbootTransportProtocolGuid = { 0x74bd9fe0, 0x8902, 0x11e3, {0xb9, 0xd3, 0xf7, 0x22, 0x38, 0xfc, 0x9a, 0x31}}
   gAndroidFastbootPlatformProtocolGuid =  { 0x524685a0, 0x89a0, 0x11e3, {0x9d, 0x4d, 0xbf, 0xa9, 0xf6, 0xa4, 0x03, 0x08}}
   gUsbDeviceProtocolGuid =  { 0x021bd2ca, 0x51d2, 0x11e3, {0x8e, 0x56, 0xb7, 0x54, 0x17, 0xc7,  0x0b, 0x44 }}
+  gPlatformGpioProtocolGuid = { 0x52ce9845, 0x5af4, 0x43e2, {0xba, 0xfd, 0x23, 0x08, 0x12, 0x54, 0x7a, 0xc2 }}
 
 [PcdsFeatureFlag.common]
   gEmbeddedTokenSpaceGuid.PcdEmbeddedMacBoot|FALSE|BOOLEAN|0x00000001
diff --git a/EmbeddedPkg/Include/Protocol/EmbeddedGpio.h b/EmbeddedPkg/Include/Protocol/EmbeddedGpio.h
index 4e7c8db..c1a86c1 100644
--- a/EmbeddedPkg/Include/Protocol/EmbeddedGpio.h
+++ b/EmbeddedPkg/Include/Protocol/EmbeddedGpio.h
@@ -164,4 +164,22 @@  struct _EMBEDDED_GPIO {
 
 extern EFI_GUID gEmbeddedGpioProtocolGuid;
 
+typedef struct _GPIO_CONTROLLER              GPIO_CONTROLLER;
+typedef struct _PLATFORM_GPIO_CONTROLLER     PLATFORM_GPIO_CONTROLLER;
+
+struct _GPIO_CONTROLLER {
+  UINTN                   RegisterBase;
+  UINTN                   GpioIndex;
+  UINTN                   InternalGpioCount;
+};
+
+struct _PLATFORM_GPIO_CONTROLLER {
+  UINTN                   GpioCount;
+  UINTN                   GpioControllerCount;
+  UINTN                   GpioControllerSize;
+  GPIO_CONTROLLER         *GpioController;
+};
+
+extern EFI_GUID gPlatformGpioProtocolGuid;
+
 #endif