+++ /dev/null
-/** @file
- Basic serial IO abstaction for GDB
-
- Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
-
- 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.
-
-**/
-
-#include <Uefi.h>
-#include <Library/GdbSerialLib.h>
-#include <Library/PcdLib.h>
-#include <Library/IoLib.h>
-
-#include <ArmEb/ArmEb.h>
-
-RETURN_STATUS
-EFIAPI
-GdbSerialLibConstructor (
- VOID
- )
-{
- return GdbSerialInit (115200, 0, 8, 1);
-}
-
-RETURN_STATUS
-EFIAPI
-GdbSerialInit (
- IN UINT64 BaudRate,
- IN UINT8 Parity,
- IN UINT8 DataBits,
- IN UINT8 StopBits
- )
-{
- if ((Parity != 0) || (DataBits != 8) || (StopBits != 1)) {
- return RETURN_UNSUPPORTED;
- }
-
- if (BaudRate != 115200) {
- // Could add support for different Baud rates....
- return RETURN_UNSUPPORTED;
- }
-
- UINT32 Base = PcdGet32 (PcdGdbUartBase);\r
- \r
- // initialize baud rate generator to 115200 based on EB clock REFCLK24MHZ\r
- MmioWrite32 (Base + UARTIBRD, UART_115200_IDIV);\r
- MmioWrite32 (Base + UARTFBRD, UART_115200_FDIV);\r
-\r
- // no parity, 1 stop, no fifo, 8 data bits\r
- MmioWrite32 (Base + UARTLCR_H, 0x60);\r
-\r
- // clear any pending errors\r
- MmioWrite32 (Base + UARTECR, 0);\r
-\r
- // enable tx, rx, and uart overall\r
- MmioWrite32 (Base + UARTCR, 0x301);\r
-\r
- return RETURN_SUCCESS;\r
-}
-
-BOOLEAN
-EFIAPI
-GdbIsCharAvailable (
- VOID
- )
-{
- UINT32 FR = PcdGet32 (PcdGdbUartBase) + UARTFR;\r
-\r
- if ((MmioRead32 (FR) & UART_RX_EMPTY_FLAG_MASK) == 0) {\r
- return TRUE;\r
- } else {\r
- return FALSE;\r
- }\r
-}
-
-CHAR8
-EFIAPI
-GdbGetChar (
- VOID
- )
-{
- UINT32 FR = PcdGet32 (PcdGdbUartBase) + UARTFR;\r
- UINT32 DR = PcdGet32 (PcdGdbUartBase) + UARTDR;\r
- \r
- while ((MmioRead32 (FR) & UART_RX_EMPTY_FLAG_MASK) == 0);\r
- return MmioRead8 (DR);\r
-}
-
-VOID
-EFIAPI
-GdbPutChar (
- IN CHAR8 Char
- )
-{
- UINT32 FR = PcdGet32 (PcdGdbUartBase) + UARTFR;\r
- UINT32 DR = PcdGet32 (PcdGdbUartBase) + UARTDR;\r
-\r
- while ((MmioRead32 (FR) & UART_TX_EMPTY_FLAG_MASK) != 0);\r
- MmioWrite8 (DR, Char);\r
- return;
-}
-
-VOID
-GdbPutString (
- IN CHAR8 *String
- )
-{
- while (*String != '\0') {
- GdbPutChar (*String);
- String++;
- }
-}
-
-
-
-