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1 | /** @file\r |
2 | Serial I/O Port library functions with no library constructor/destructor\r |
3 | \r |
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4 | Copyright (c) 2012-2013, ARM Ltd. All rights reserved.<BR>\r |
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5 | \r |
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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 <Base.h>\r |
17 | \r |
18 | #include <Library/IoLib.h>\r |
19 | #include <Library/PcdLib.h>\r |
20 | #include <Library/SerialPortExtLib.h>\r |
21 | \r |
22 | #include <Drivers/PL011Uart.h>\r |
23 | \r |
24 | /**\r |
25 | Set new attributes to PL011.\r |
26 | \r |
27 | @param BaudRate The baud rate of the serial device. If the baud rate is not supported,\r |
28 | the speed will be reduced down to the nearest supported one and the\r |
29 | variable's value will be updated accordingly.\r |
30 | @param ReceiveFifoDepth The number of characters the device will buffer on input. If the specified\r |
31 | value is not supported, the variable's value will be reduced down to the\r |
32 | nearest supported one.\r |
33 | @param Timeout If applicable, the number of microseconds the device will wait\r |
34 | before timing out a Read or a Write operation.\r |
35 | @param Parity If applicable, this is the EFI_PARITY_TYPE that is computed or checked\r |
36 | as each character is transmitted or received. If the device does not\r |
37 | support parity, the value is the default parity value.\r |
38 | @param DataBits The number of data bits in each character\r |
39 | @param StopBits If applicable, the EFI_STOP_BITS_TYPE number of stop bits per character.\r |
40 | If the device does not support stop bits, the value is the default stop\r |
41 | bit value.\r |
42 | \r |
43 | @retval EFI_SUCCESS All attributes were set correctly on the serial device.\r |
44 | @retval EFI_INVALID_PARAMETERS One or more of the attributes has an unsupported value.\r |
45 | \r |
46 | **/\r |
47 | RETURN_STATUS\r |
48 | EFIAPI\r |
49 | SerialPortSetAttributes (\r |
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50 | IN OUT UINT64 *BaudRate,\r |
51 | IN OUT UINT32 *ReceiveFifoDepth,\r |
52 | IN OUT UINT32 *Timeout,\r |
53 | IN OUT EFI_PARITY_TYPE *Parity,\r |
54 | IN OUT UINT8 *DataBits,\r |
55 | IN OUT EFI_STOP_BITS_TYPE *StopBits\r |
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56 | )\r |
57 | {\r |
58 | return PL011UartInitializePort (\r |
59 | (UINTN)PcdGet64 (PcdSerialRegisterBase),\r |
60 | BaudRate,\r |
61 | ReceiveFifoDepth,\r |
62 | Parity,\r |
63 | DataBits,\r |
64 | StopBits);\r |
65 | }\r |
66 | \r |
67 | /**\r |
68 | Set the serial device control bits.\r |
69 | \r |
70 | @param Control Control bits which are to be set on the serial device.\r |
71 | \r |
72 | @retval EFI_SUCCESS The new control bits were set on the serial device.\r |
73 | @retval EFI_UNSUPPORTED The serial device does not support this operation.\r |
74 | @retval EFI_DEVICE_ERROR The serial device is not functioning correctly.\r |
75 | \r |
76 | **/\r |
77 | RETURN_STATUS\r |
78 | EFIAPI\r |
79 | SerialPortSetControl (\r |
80 | IN UINT32 Control\r |
81 | )\r |
82 | {\r |
83 | return PL011UartSetControl ((UINTN)PcdGet64 (PcdSerialRegisterBase), Control);\r |
84 | }\r |
85 | \r |
86 | /**\r |
87 | Get the serial device control bits.\r |
88 | \r |
89 | @param Control Control signals read from the serial device.\r |
90 | \r |
91 | @retval EFI_SUCCESS The control bits were read from the serial device.\r |
92 | @retval EFI_DEVICE_ERROR The serial device is not functioning correctly.\r |
93 | \r |
94 | **/\r |
95 | RETURN_STATUS\r |
96 | EFIAPI\r |
97 | SerialPortGetControl (\r |
98 | OUT UINT32 *Control\r |
99 | )\r |
100 | {\r |
101 | return PL011UartGetControl ((UINTN)PcdGet64 (PcdSerialRegisterBase), Control);\r |
102 | }\r |
103 | \r |