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1e57a462 | 1 | /** @file\r |
2 | Basic serial IO abstaction for GDB\r | |
3 | \r | |
4 | Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>\r | |
3402aac7 | 5 | \r |
1e57a462 | 6 | This program and the accompanying materials\r |
7 | are licensed and made available under the terms and conditions of the BSD License\r | |
8 | which accompanies this distribution. The full text of the license may be found at\r | |
9 | http://opensource.org/licenses/bsd-license.php\r | |
10 | \r | |
11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
12 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
13 | \r | |
14 | **/\r | |
15 | \r | |
16 | #include <Uefi.h>\r | |
17 | #include <Library/GdbSerialLib.h>\r | |
18 | #include <Library/PcdLib.h>\r | |
19 | #include <Library/IoLib.h>\r | |
20 | #include <Library/DebugLib.h>\r | |
21 | #include <Library/OmapLib.h>\r | |
22 | #include <Omap3530/Omap3530.h>\r | |
23 | \r | |
24 | RETURN_STATUS\r | |
25 | EFIAPI\r | |
26 | GdbSerialLibConstructor (\r | |
27 | IN EFI_HANDLE ImageHandle,\r | |
28 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
29 | )\r | |
30 | {\r | |
31 | return RETURN_SUCCESS;\r | |
32 | }\r | |
33 | \r | |
34 | RETURN_STATUS\r | |
35 | EFIAPI\r | |
36 | GdbSerialInit (\r | |
3402aac7 RC |
37 | IN UINT64 BaudRate,\r |
38 | IN UINT8 Parity,\r | |
39 | IN UINT8 DataBits,\r | |
40 | IN UINT8 StopBits\r | |
1e57a462 | 41 | )\r |
42 | {\r | |
43 | return RETURN_SUCCESS;\r | |
44 | }\r | |
45 | \r | |
46 | BOOLEAN\r | |
47 | EFIAPI\r | |
48 | GdbIsCharAvailable (\r | |
49 | VOID\r | |
3402aac7 | 50 | )\r |
1e57a462 | 51 | {\r |
52 | UINT32 LSR = UartBase(PcdGet32(PcdOmap35xxConsoleUart)) + UART_LSR_REG;\r | |
53 | \r | |
54 | if ((MmioRead8(LSR) & UART_LSR_RX_FIFO_E_MASK) == UART_LSR_RX_FIFO_E_NOT_EMPTY) {\r | |
55 | return TRUE;\r | |
56 | } else {\r | |
57 | return FALSE;\r | |
58 | }\r | |
59 | }\r | |
60 | \r | |
61 | CHAR8\r | |
62 | EFIAPI\r | |
63 | GdbGetChar (\r | |
64 | VOID\r | |
65 | )\r | |
66 | {\r | |
67 | UINT32 LSR = UartBase(PcdGet32(PcdOmap35xxConsoleUart)) + UART_LSR_REG;\r | |
68 | UINT32 RBR = UartBase(PcdGet32(PcdOmap35xxConsoleUart)) + UART_RBR_REG;\r | |
69 | CHAR8 Char;\r | |
3402aac7 | 70 | \r |
1e57a462 | 71 | while ((MmioRead8(LSR) & UART_LSR_RX_FIFO_E_MASK) == UART_LSR_RX_FIFO_E_EMPTY);\r |
72 | Char = MmioRead8(RBR);\r | |
73 | \r | |
74 | return Char;\r | |
75 | }\r | |
76 | \r | |
77 | VOID\r | |
78 | EFIAPI\r | |
79 | GdbPutChar (\r | |
80 | IN CHAR8 Char\r | |
81 | )\r | |
82 | {\r | |
83 | UINT32 LSR = UartBase(PcdGet32(PcdOmap35xxConsoleUart)) + UART_LSR_REG;\r | |
84 | UINT32 THR = UartBase(PcdGet32(PcdOmap35xxConsoleUart)) + UART_THR_REG;\r | |
3402aac7 | 85 | \r |
1e57a462 | 86 | while ((MmioRead8(LSR) & UART_LSR_TX_FIFO_E_MASK) == UART_LSR_TX_FIFO_E_NOT_EMPTY);\r |
87 | MmioWrite8(THR, Char);\r | |
88 | }\r | |
89 | \r | |
90 | VOID\r | |
91 | GdbPutString (\r | |
92 | IN CHAR8 *String\r | |
93 | )\r | |
94 | {\r | |
95 | while (*String != '\0') {\r | |
96 | GdbPutChar (*String);\r | |
97 | String++;\r | |
98 | }\r | |
99 | }\r | |
100 | \r | |
101 | \r | |
102 | \r | |
103 | \r |