diff options
| author | vanjeff <vanjeff@6f19259b-4bc3-4df7-8a09-765794883524> | 2009-04-15 03:36:35 +0000 |
|---|---|---|
| committer | vanjeff <vanjeff@6f19259b-4bc3-4df7-8a09-765794883524> | 2009-04-15 03:36:35 +0000 |
| commit | 9f3543108564e17c40134a8ec6a0bc2709f06ccf (patch) | |
| tree | 0a8b658d388f16b0ccbac7b09baa1234f501db05 /OptionRomPkg/CirrusLogic5430Dxe/CirrusLogic5430I2c.h | |
| parent | 33ae1b2d8730338f8ae310a5f93641e336158f33 (diff) | |
| download | edk2-platforms-9f3543108564e17c40134a8ec6a0bc2709f06ccf.tar.xz | |
add new files.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8087 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'OptionRomPkg/CirrusLogic5430Dxe/CirrusLogic5430I2c.h')
| -rw-r--r-- | OptionRomPkg/CirrusLogic5430Dxe/CirrusLogic5430I2c.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/OptionRomPkg/CirrusLogic5430Dxe/CirrusLogic5430I2c.h b/OptionRomPkg/CirrusLogic5430Dxe/CirrusLogic5430I2c.h new file mode 100644 index 0000000000..b39f47f719 --- /dev/null +++ b/OptionRomPkg/CirrusLogic5430Dxe/CirrusLogic5430I2c.h @@ -0,0 +1,68 @@ +/** @file + I2c Bus byte read/write functions. + + Copyright (c) 2008 - 2009, Intel Corporation + All rights reserved. This program and the accompanying materials + are licensed and made available under the terms and conditions of the BSD License + which accompanies this distribution. The full text of the license may be found at + http://opensource.org/licenses/bsd-license.php + + THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, + WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. + +**/
+
+#ifndef _CIRRUS_LOGIC_I2C_H_
+#define _CIRRUS_LOGIC_I2C_H_
+
+#include <Protocol/PciIo.h>
+
+/**
+ Read one byte data on I2C Bus.
+
+ Read one byte data from the slave device connectet to I2C Bus.
+ If Data is NULL, then ASSERT().
+
+ @param PciIo The pointer to PCI_IO_PROTOCOL.
+ @param DeviceAddress Slave device's address.
+ @param RegisterAddress The register address on slave device.
+ @param Data The pointer to returned data if EFI_SUCCESS returned.
+
+ @retval EFI_DEVICE_ERROR
+ @retval EFI_SUCCESS
+
+**/
+EFI_STATUS
+EFIAPI
+I2cReadByte (
+ EFI_PCI_IO_PROTOCOL *PciIo,
+ UINT8 DeviceAddress,
+ UINT8 RegisterAddress,
+ UINT8 *Data
+ );
+
+/**
+ Write one byte data onto I2C Bus.
+
+ Write one byte data to the slave device connectet to I2C Bus.
+ If Data is NULL, then ASSERT().
+
+ @param PciIo The pointer to PCI_IO_PROTOCOL.
+ @param DeviceAddress Slave device's address.
+ @param RegisterAddress The register address on slave device.
+ @param Data The pointer to write data.
+
+ @retval EFI_DEVICE_ERROR
+ @retval EFI_SUCCESS
+
+**/
+EFI_STATUS
+EFIAPI
+I2cWriteByte (
+ EFI_PCI_IO_PROTOCOL *PciIo,
+ UINT8 DeviceAddress,
+ UINT8 RegisterAddress,
+ UINT8 *Data
+ );
+
+#endif
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