add new files.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8087 6f19259b-4bc3-4df7-8a09-765794883524

diff --git a/OptionRomPkg/CirrusLogic5430Dxe/CirrusLogic5430I2c.c b/OptionRomPkg/CirrusLogic5430Dxe/CirrusLogic5430I2c.c
new file mode 100644 (file)
index 0000000..377a597
--- /dev/null
+++ b/OptionRomPkg/CirrusLogic5430Dxe/CirrusLogic5430I2c.c
@@ -0,0 +1,433 @@
+/** @file\r
+  I2C Bus implementation upon CirrusLogic.\r
+\r
+  Copyright (c) 2008 - 2009, Intel Corporation\r
+  All rights reserved. This program and the accompanying materials\r
+  are licensed and made available under the terms and conditions of the BSD License\r
+  which accompanies this distribution.  The full text of the license may be found at\r
+  http://opensource.org/licenses/bsd-license.php\r
+\r
+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+\r
+**/\r
+\r
+#include "CirrusLogic5430.h"\r
+#include "CirrusLogic5430I2c.h"\r
+\r
+#define SEQ_ADDRESS_REGISTER    0x3c4\r
+#define SEQ_DATA_REGISTER       0x3c5\r
+\r
+#define I2C_CONTROL             0x08\r
+#define I2CDAT_IN               7\r
+#define I2CCLK_IN               2\r
+#define I2CDAT_OUT              1\r
+#define I2CCLK_OUT              0\r
+\r
+#define I2C_BUS_SPEED           100  //100kbps\r
+\r
+/**\r
+  PCI I/O byte write function.\r
+\r
+  @param  PciIo        The pointer to PCI_IO_PROTOCOL.\r
+  @param  Address      The bit map of I2C Data or I2C Clock pins.\r
+  @param  Data         The date to write.\r
+\r
+**/\r
+VOID\r
+I2cOutb (\r
+  EFI_PCI_IO_PROTOCOL    *PciIo,\r
+  UINTN                  Address,\r
+  UINT8                  Data\r
+  )\r
+{\r
+  PciIo->Io.Write (\r
+             PciIo,\r
+             EfiPciIoWidthUint8,\r
+             EFI_PCI_IO_PASS_THROUGH_BAR,\r
+             Address,\r
+             1,\r
+             &Data\r
+             );\r
+}\r
+/**\r
+  PCI I/O byte read function.\r
+\r
+  @param  PciIo        The pointer to PCI_IO_PROTOCOL.\r
+  @param  Address      The bit map of I2C Data or I2C Clock pins.\r
+\r
+  return byte value read from PCI I/O space.\r
+\r
+**/\r
+UINT8\r
+I2cInb (\r
+  EFI_PCI_IO_PROTOCOL    *PciIo,\r
+  UINTN                  Address\r
+  )\r
+{\r
+  UINT8 Data;\r
+\r
+  PciIo->Io.Read (\r
+             PciIo,\r
+             EfiPciIoWidthUint8,\r
+             EFI_PCI_IO_PASS_THROUGH_BAR,\r
+             Address,\r
+             1,\r
+             &Data\r
+             );\r
+  return Data;\r
+}\r
+\r
+/**\r
+  Read status of I2C Data and I2C Clock Pins.\r
+\r
+  @param  PciIo        The pointer to PCI_IO_PROTOCOL.\r
+  @param  Blt          The bit map of I2C Data or I2C Clock pins.\r
+\r
+  @retval 0            Low on I2C Data or I2C Clock Pin.\r
+  @retval 1            High on I2C Data or I2C Clock Pin.\r
+\r
+**/\r
+UINT8\r
+I2cPinRead (\r
+  EFI_PCI_IO_PROTOCOL    *PciIo,\r
+  UINT8                  Bit\r
+  )\r
+{\r
+  I2cOutb (PciIo, SEQ_ADDRESS_REGISTER, I2C_CONTROL);\r
+  return (UINT8) ((I2cInb (PciIo, SEQ_DATA_REGISTER) >> Bit ) & 0xfe);\r
+}\r
+\r
+\r
+/**\r
+  Set/Clear I2C Data and I2C Clock Pins.\r
+\r
+  @param  PciIo              The pointer to PCI_IO_PROTOCOL.\r
+  @param  Blt                The bit map to controller I2C Data or I2C Clock pins.\r
+  @param  Value              1 or 0 stands for Set or Clear I2C Data and I2C Clock Pins.\r
+\r
+**/\r
+VOID\r
+I2cPinWrite (\r
+  EFI_PCI_IO_PROTOCOL    *PciIo,\r
+  UINT8                  Bit,\r
+  UINT8                  Value\r
+  )\r
+{\r
+  UINT8        Byte;\r
+  I2cOutb (PciIo, SEQ_ADDRESS_REGISTER, I2C_CONTROL);\r
+  Byte = (UINT8) (I2cInb (PciIo, SEQ_DATA_REGISTER) & (UINT8) ~(1 << Bit)) ;\r
+  Byte = (UINT8) (Byte | ((Value & 0x01) << Bit));\r
+  I2cOutb (PciIo, SEQ_DATA_REGISTER, (UINT8) (Byte | 0x40));\r
+  return;\r
+}\r
+\r
+/**\r
+  Read/write delay acoording to I2C Bus Speed.\r
+\r
+**/\r
+VOID\r
+I2cDelay (\r
+  VOID\r
+  )\r
+{\r
+  MicroSecondDelay (1000 / I2C_BUS_SPEED);\r
+}\r
+\r
+/**\r
+  Write a 8-bit data onto I2C Data Pin.\r
+\r
+  @param  PciIo              The pointer to PCI_IO_PROTOCOL.\r
+  @param  Data               The byte data to write.\r
+\r
+**/\r
+VOID\r
+I2cSendByte (\r
+  EFI_PCI_IO_PROTOCOL    *PciIo,\r
+  UINT8                  Data\r
+  )\r
+{\r
+  UINTN                  Index;\r
+  //\r
+  // Send byte data onto I2C Bus\r
+  //\r
+  for (Index = 0; Index < 8; Index --) {\r
+    I2cPinWrite (PciIo, I2CDAT_OUT, (UINT8) (Data >> (7 - Index)));\r
+    I2cPinWrite (PciIo, I2CCLK_OUT, 1);\r
+    I2cDelay ();\r
+    I2cPinWrite (PciIo, I2CCLK_OUT, 0);\r
+  }\r
+}\r
+\r
+/**\r
+  Read a 8-bit data from I2C Data Pin.\r
+\r
+  @param  PciIo              The pointer to PCI_IO_PROTOCOL.\r
+\r
+  Return the byte data read from I2C Data Pin.\r
+**/\r
+UINT8\r
+I2cReceiveByte (\r
+  EFI_PCI_IO_PROTOCOL    *PciIo\r
+  )\r
+{\r
+  UINT8          Data;\r
+  UINTN          Index;\r
+\r
+  Data = 0;\r
+  //\r
+  // Read byte data from I2C Bus\r
+  //\r
+  for (Index = 0; Index < 8; Index --) {\r
+    I2cPinWrite (PciIo, I2CCLK_OUT, 1);\r
+    I2cDelay ();\r
+    Data = (UINT8) (Data << 1);\r
+    Data = (UINT8) (Data | I2cPinRead (PciIo, I2CDAT_IN));\r
+    I2cPinWrite (PciIo, I2CCLK_OUT, 0);\r
+  }\r
+\r
+  return Data;\r
+}\r
+\r
+/**\r
+  Receive an ACK signal from I2C Bus.\r
+\r
+  @param  PciIo              The pointer to PCI_IO_PROTOCOL.\r
+\r
+**/\r
+BOOLEAN\r
+I2cWaitAck (\r
+  EFI_PCI_IO_PROTOCOL    *PciIo\r
+  )\r
+{\r
+  //\r
+  // Wait for ACK signal\r
+  //\r
+  I2cPinWrite (PciIo, I2CDAT_OUT, 1);\r
+  I2cPinWrite (PciIo, I2CCLK_OUT, 1);\r
+  I2cDelay ();\r
+  if (I2cPinRead (PciIo, I2CDAT_IN) == 0) {\r
+    I2cPinWrite (PciIo, I2CDAT_OUT, 1);\r
+    return TRUE;\r
+  } else {\r
+    return FALSE;\r
+  }\r
+}\r
+\r
+/**\r
+  Send an ACK signal onto I2C Bus.\r
+\r
+  @param  PciIo              The pointer to PCI_IO_PROTOCOL.\r
+\r
+**/\r
+VOID\r
+I2cSendAck (\r
+  EFI_PCI_IO_PROTOCOL    *PciIo\r
+  )\r
+{\r
+  I2cPinWrite (PciIo, I2CCLK_OUT, 1);\r
+  I2cPinWrite (PciIo, I2CDAT_OUT, 1);\r
+  I2cPinWrite (PciIo, I2CDAT_OUT, 0);\r
+  I2cPinWrite (PciIo, I2CCLK_OUT, 0);\r
+}\r
+\r
+/**\r
+  Start a I2C transfer on I2C Bus.\r
+\r
+  @param  PciIo              The pointer to PCI_IO_PROTOCOL.\r
+\r
+**/\r
+VOID\r
+I2cStart (\r
+  EFI_PCI_IO_PROTOCOL    *PciIo\r
+  )\r
+{\r
+  //\r
+  // Init CLK and DAT pins\r
+  //\r
+  I2cPinWrite (PciIo, I2CCLK_OUT, 1);\r
+  I2cPinWrite (PciIo, I2CDAT_OUT, 1);\r
+  //\r
+  // Start a I2C transfer, set SDA low from high, when SCL is high\r
+  //\r
+  I2cPinWrite (PciIo, I2CDAT_OUT, 0);\r
+  I2cPinWrite (PciIo, I2CCLK_OUT, 0);\r
+}\r
+\r
+/**\r
+  Stop a I2C transfer on I2C Bus.\r
+\r
+  @param  PciIo              The pointer to PCI_IO_PROTOCOL.\r
+\r
+**/\r
+VOID\r
+I2cStop (\r
+  EFI_PCI_IO_PROTOCOL    *PciIo\r
+  )\r
+{\r
+  //\r
+  // Stop a I2C transfer, set SDA high from low, when SCL is high\r
+  //\r
+  I2cPinWrite (PciIo, I2CDAT_OUT, 0);\r
+  I2cPinWrite (PciIo, I2CCLK_OUT, 1);\r
+  I2cPinWrite (PciIo, I2CDAT_OUT, 1);\r
+}\r
+\r
+/**\r
+  Read one byte data on I2C Bus.\r
+\r
+  Read one byte data from the slave device connectet to I2C Bus.\r
+  If Data is NULL, then ASSERT().\r
+\r
+  @param  PciIo              The pointer to PCI_IO_PROTOCOL.\r
+  @param  DeviceAddress      Slave device's address.\r
+  @param  RegisterAddress    The register address on slave device.\r
+  @param  Data               The pointer to returned data if EFI_SUCCESS returned.\r
+\r
+  @retval EFI_DEVICE_ERROR\r
+  @retval EFI_SUCCESS\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+I2cReadByte (\r
+  EFI_PCI_IO_PROTOCOL    *PciIo,\r
+  UINT8                  DeviceAddress,\r
+  UINT8                  RegisterAddress,\r
+  UINT8                  *Data\r
+  )\r
+{\r
+  ASSERT (Data != NULL);\r
+\r
+  //\r
+  // Start I2C transfer\r
+  //\r
+  I2cStart (PciIo);\r
+\r
+  //\r
+  // Send slave address with enabling write flag\r
+  //\r
+  I2cSendByte (PciIo, (UINT8) (DeviceAddress & 0xfe));\r
+\r
+  //\r
+  // Wait for ACK signal\r
+  //\r
+  if (I2cWaitAck (PciIo) == FALSE) {\r
+    return EFI_DEVICE_ERROR;\r
+  }\r
+\r
+  //\r
+  // Send register address\r
+  //\r
+  I2cSendByte (PciIo, RegisterAddress);\r
+\r
+  //\r
+  // Wait for ACK signal\r
+  //\r
+  if (I2cWaitAck (PciIo) == FALSE) {\r
+    return EFI_DEVICE_ERROR;\r
+  }\r
+\r
+  //\r
+  // Send slave address with enabling read flag\r
+  //\r
+  I2cSendByte (PciIo, (UINT8) (DeviceAddress | 0x01));\r
+\r
+  //\r
+  // Wait for ACK signal\r
+  //\r
+  if (I2cWaitAck (PciIo) == FALSE) {\r
+    return EFI_DEVICE_ERROR;\r
+  }\r
+\r
+  //\r
+  // Read byte data from I2C Bus\r
+  //\r
+  *Data = I2cReceiveByte (PciIo);\r
+\r
+  //\r
+  // Send ACK signal onto I2C Bus\r
+  //\r
+  I2cSendAck (PciIo);\r
+\r
+  //\r
+  // Stop a I2C transfer\r
+  //\r
+  I2cStop (PciIo);\r
+\r
+  return EFI_SUCCESS;\r
+}\r
+\r
+/**\r
+  Write one byte data onto I2C Bus.\r
+\r
+  Write one byte data to the slave device connectet to I2C Bus.\r
+  If Data is NULL, then ASSERT().\r
+\r
+  @param  PciIo              The pointer to PCI_IO_PROTOCOL.\r
+  @param  DeviceAddress      Slave device's address.\r
+  @param  RegisterAddress    The register address on slave device.\r
+  @param  Data               The pointer to write data.\r
+\r
+  @retval EFI_DEVICE_ERROR\r
+  @retval EFI_SUCCESS\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+I2cWriteByte (\r
+  EFI_PCI_IO_PROTOCOL    *PciIo,\r
+  UINT8                  DeviceAddress,\r
+  UINT8                  RegisterAddress,\r
+  UINT8                  *Data\r
+  )\r
+{\r
+  ASSERT (Data != NULL);\r
+\r
+  I2cStart (PciIo);\r
+  //\r
+  // Send slave address with enabling write flag\r
+  //\r
+  I2cSendByte (PciIo, (UINT8) (DeviceAddress & 0xfe));\r
+\r
+  //\r
+  // Wait for ACK signal\r
+  //\r
+  if (I2cWaitAck (PciIo) == FALSE) {\r
+    return EFI_DEVICE_ERROR;\r
+  }\r
+\r
+  //\r
+  // Send register address\r
+  //\r
+  I2cSendByte (PciIo, RegisterAddress);\r
+\r
+  //\r
+  // Wait for ACK signal\r
+  //\r
+  if (I2cWaitAck (PciIo) == FALSE) {\r
+    return EFI_DEVICE_ERROR;\r
+  }\r
+\r
+  //\r
+  // Send byte data onto I2C Bus\r
+  //\r
+  I2cSendByte (PciIo, *Data);\r
+\r
+  //\r
+  // Wait for ACK signal\r
+  //\r
+  if (I2cWaitAck (PciIo) == FALSE) {\r
+    return EFI_DEVICE_ERROR;\r
+  }\r
+\r
+  //\r
+  // Stop a I2C transfer\r
+  //\r
+  I2cStop (PciIo);\r
+\r
+  return EFI_SUCCESS;\r
+}\r
+\r
+\r
+\r

diff --git a/OptionRomPkg/CirrusLogic5430Dxe/CirrusLogic5430I2c.h b/OptionRomPkg/CirrusLogic5430Dxe/CirrusLogic5430I2c.h
new file mode 100644 (file)
index 0000000..b39f47f
--- /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.
+
+**/\r
+\r
+#ifndef _CIRRUS_LOGIC_I2C_H_\r
+#define _CIRRUS_LOGIC_I2C_H_\r
+\r
+#include <Protocol/PciIo.h>\r
+\r
+/**\r
+  Read one byte data on I2C Bus.\r
+\r
+  Read one byte data from the slave device connectet to I2C Bus.\r
+  If Data is NULL, then ASSERT().\r
+\r
+  @param  PciIo              The pointer to PCI_IO_PROTOCOL.\r
+  @param  DeviceAddress      Slave device's address.\r
+  @param  RegisterAddress    The register address on slave device.\r
+  @param  Data               The pointer to returned data if EFI_SUCCESS returned.\r
+\r
+  @retval EFI_DEVICE_ERROR\r
+  @retval EFI_SUCCESS\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+I2cReadByte (\r
+  EFI_PCI_IO_PROTOCOL    *PciIo,\r
+  UINT8                  DeviceAddress,\r
+  UINT8                  RegisterAddress,\r
+  UINT8                  *Data\r
+  );\r
+\r
+/**\r
+  Write one byte data onto I2C Bus.\r
+\r
+  Write one byte data to the slave device connectet to I2C Bus.\r
+  If Data is NULL, then ASSERT().\r
+\r
+  @param  PciIo              The pointer to PCI_IO_PROTOCOL.\r
+  @param  DeviceAddress      Slave device's address.\r
+  @param  RegisterAddress    The register address on slave device.\r
+  @param  Data               The pointer to write data.\r
+\r
+  @retval EFI_DEVICE_ERROR\r
+  @retval EFI_SUCCESS\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+I2cWriteByte (\r
+  EFI_PCI_IO_PROTOCOL    *PciIo,\r
+  UINT8                  DeviceAddress,\r
+  UINT8                  RegisterAddress,\r
+  UINT8                  *Data\r
+  );\r
+\r
+#endif\r