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3cbfba02 DW |
1 | /** @file\r |
2 | \r | |
3 | Copyright (c) 2004 - 2014, Intel Corporation. All rights reserved.<BR>\r | |
4 | \r\r | |
9dc8036d MK |
5 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
6 | \r | |
3cbfba02 DW |
7 | \r\r |
8 | \r | |
9 | Module Name:\r | |
10 | \r | |
11 | LegacySpeaker.c\r | |
12 | \r | |
13 | Abstract:\r | |
14 | \r | |
15 | This file implements DXE for Legacy Speaker.\r | |
16 | \r | |
17 | --*/\r | |
18 | \r | |
19 | #include "LegacySpeaker.h"\r | |
20 | \r | |
21 | /**\r | |
22 | \r | |
23 | This function will enable the speaker to generate beep\r | |
24 | \r | |
25 | @retval EFI_STATUS\r | |
26 | \r | |
27 | **/\r | |
28 | EFI_STATUS\r | |
29 | TurnOnSpeaker (\r | |
30 | )\r | |
31 | {\r | |
32 | UINT8 Data;\r | |
33 | Data = IoRead8 (EFI_SPEAKER_CONTROL_PORT);\r | |
34 | Data |= 0x03;\r | |
35 | IoWrite8(EFI_SPEAKER_CONTROL_PORT, Data);\r | |
36 | return EFI_SUCCESS;\r | |
37 | }\r | |
38 | \r | |
39 | /**\r | |
40 | \r | |
41 | This function will stop beep from speaker.\r | |
42 | \r | |
43 | @retval Status\r | |
44 | \r | |
45 | **/\r | |
46 | EFI_STATUS\r | |
47 | TurnOffSpeaker (\r | |
48 | )\r | |
49 | {\r | |
50 | UINT8 Data;\r | |
51 | \r | |
52 | Data = IoRead8 (EFI_SPEAKER_CONTROL_PORT);\r | |
53 | Data &= 0xFC;\r | |
54 | IoWrite8(EFI_SPEAKER_CONTROL_PORT, Data);\r | |
55 | return EFI_SUCCESS;\r | |
56 | }\r | |
57 | \r | |
58 | /**\r | |
59 | Generate beep sound based upon number of beeps and duration of the beep\r | |
60 | \r | |
61 | @param NumberOfBeeps Number of beeps which user want to produce\r | |
62 | @param BeepDuration Duration for speaker gate need to be enabled\r | |
63 | @param TimeInterval Interval between each beep\r | |
64 | \r | |
65 | @retval Does not return if the reset takes place.\r | |
66 | EFI_INVALID_PARAMETER If ResetType is invalid.\r | |
67 | \r | |
68 | **/\r | |
69 | EFI_STATUS\r | |
70 | OutputBeep (\r | |
71 | IN UINTN NumberOfBeep,\r | |
72 | IN UINTN BeepDuration,\r | |
73 | IN UINTN TimeInterval\r | |
74 | )\r | |
75 | {\r | |
76 | UINTN Num;\r | |
77 | \r | |
78 | for (Num=0; Num < NumberOfBeep; Num++) {\r | |
79 | TurnOnSpeaker ();\r | |
80 | //\r | |
81 | // wait some time,at least 120us\r | |
82 | //\r | |
83 | gBS->Stall (BeepDuration);\r | |
84 | TurnOffSpeaker();\r | |
85 | gBS->Stall (TimeInterval);\r | |
86 | }\r | |
87 | \r | |
88 | return EFI_SUCCESS;\r | |
89 | }\r | |
90 | \r | |
91 | /**\r | |
92 | This function will program the speaker tone frequency. The value should be with 64k\r | |
93 | boundary since it takes only 16 bit value which gets programmed in two step IO opearattion\r | |
94 | \r | |
95 | @param Frequency A value which should be 16 bit only.\r | |
96 | \r | |
97 | @retval EFI_SUCESS\r | |
98 | \r | |
99 | **/\r | |
100 | EFI_STATUS\r | |
101 | EFIAPI \r | |
102 | ProgramToneFrequency (\r | |
103 | IN EFI_SPEAKER_IF_PROTOCOL * This,\r | |
104 | IN UINT16 Frequency\r | |
105 | )\r | |
106 | {\r | |
107 | UINT8 Data;\r | |
108 | \r | |
109 | Data = 0xB6;\r | |
110 | IoWrite8(EFI_TIMER_CONTROL_PORT, Data);\r | |
111 | \r | |
112 | Data = (UINT8)(Frequency & 0x00FF);\r | |
113 | IoWrite8(EFI_TIMER_2_PORT, Data);\r | |
114 | Data = (UINT8)((Frequency & 0xFF00) >> 8);\r | |
115 | IoWrite8(EFI_TIMER_2_PORT, Data);\r | |
116 | return EFI_SUCCESS;\r | |
117 | }\r | |
118 | \r | |
119 | /**\r | |
120 | This function will generate the beep for specified duration.\r | |
121 | \r | |
122 | @param NumberOfBeeps Number of beeps which user want to produce\r | |
123 | @param BeepDuration Duration for speaker gate need to be enabled\r | |
124 | @param TimeInterval Interval between each beep\r | |
125 | \r | |
126 | @retval EFI_STATUS\r | |
127 | \r | |
128 | **/\r | |
129 | EFI_STATUS\r | |
130 | EFIAPI\r | |
131 | GenerateBeepTone (\r | |
132 | IN EFI_SPEAKER_IF_PROTOCOL * This,\r | |
133 | IN UINTN NumberOfBeeps,\r | |
134 | IN UINTN BeepDuration,\r | |
135 | IN UINTN TimeInterval\r | |
136 | )\r | |
137 | {\r | |
138 | \r | |
139 | if ((NumberOfBeeps == 1) && (BeepDuration == 0) && (TimeInterval == 0)) {\r | |
140 | TurnOnSpeaker ();\r | |
141 | return EFI_SUCCESS;\r | |
142 | }\r | |
143 | \r | |
144 | if ((NumberOfBeeps == 0) && (BeepDuration == 0) && (TimeInterval == 0)) {\r | |
145 | TurnOffSpeaker ();\r | |
146 | return EFI_SUCCESS;\r | |
147 | }\r | |
148 | \r | |
149 | if (BeepDuration == 0) {\r | |
150 | BeepDuration = EFI_DEFAULT_SHORT_BEEP_DURATION;\r | |
151 | }\r | |
152 | \r | |
153 | if (TimeInterval == 0) {\r | |
154 | TimeInterval = EFI_DEFAULT_BEEP_TIME_INTERVAL;\r | |
155 | }\r | |
156 | \r | |
157 | OutputBeep (NumberOfBeeps, BeepDuration, TimeInterval);\r | |
158 | return EFI_SUCCESS;\r | |
159 | \r | |
160 | \r | |
161 | }\r |