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gerrit.devboardsforandroid.linaro.org / device / linaro / hikey960 / 82c807137a2c3f033e23e414476d131e88ad221a / . / uefi / linaro-edk2 / PcAtChipsetPkg / PciHostBridgeDxe / X64 / IoFifo.asm
blob: d16f0249d7a64d48fe764ae39a208f40c8b42ddb [file] [log] [blame]
Vishal Bhoj82c80712015-12-15 21:13:33 +0530[diff] [blame^]1;------------------------------------------------------------------------------
2;
3; Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
4; This program and the accompanying materials
5; are licensed and made available under the terms and conditions of the BSD License
6; which accompanies this distribution. The full text of the license may be found at
7; http://opensource.org/licenses/bsd-license.php.
8;
9; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
10; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
11;
12;------------------------------------------------------------------------------
13
14 .code
15
16;------------------------------------------------------------------------------
17; VOID
18; EFIAPI
19; IoReadFifo8 (
20; IN UINTN Port, // rcx
21; IN UINTN Size, // rdx
22; IN VOID *Buffer // r8
23; );
24;------------------------------------------------------------------------------
25IoReadFifo8 PROC
26 cld
27 xchg rcx, rdx
28 xchg rdi, r8 ; rdi: buffer address; r8: save rdi
29rep insb
30 mov rdi, r8 ; restore rdi
31 ret
32IoReadFifo8 ENDP
33
34;------------------------------------------------------------------------------
35; VOID
36; EFIAPI
37; IoReadFifo16 (
38; IN UINTN Port, // rcx
39; IN UINTN Size, // rdx
40; IN VOID *Buffer // r8
41; );
42;------------------------------------------------------------------------------
43IoReadFifo16 PROC
44 cld
45 xchg rcx, rdx
46 xchg rdi, r8 ; rdi: buffer address; r8: save rdi
47rep insw
48 mov rdi, r8 ; restore rdi
49 ret
50IoReadFifo16 ENDP
51
52;------------------------------------------------------------------------------
53; VOID
54; EFIAPI
55; IoReadFifo32 (
56; IN UINTN Port, // rcx
57; IN UINTN Size, // rdx
58; IN VOID *Buffer // r8
59; );
60;------------------------------------------------------------------------------
61IoReadFifo32 PROC
62 cld
63 xchg rcx, rdx
64 xchg rdi, r8 ; rdi: buffer address; r8: save rdi
65rep insd
66 mov rdi, r8 ; restore rdi
67 ret
68IoReadFifo32 ENDP
69
70;------------------------------------------------------------------------------
71; VOID
72; EFIAPI
73; IoWriteFifo8 (
74; IN UINTN Port, // rcx
75; IN UINTN Size, // rdx
76; IN VOID *Buffer // r8
77; );
78;------------------------------------------------------------------------------
79IoWriteFifo8 PROC
80 cld
81 xchg rcx, rdx
82 xchg rsi, r8 ; rsi: buffer address; r8: save rsi
83rep outsb
84 mov rsi, r8 ; restore rsi
85 ret
86IoWriteFifo8 ENDP
87
88;------------------------------------------------------------------------------
89; VOID
90; EFIAPI
91; IoWriteFifo16 (
92; IN UINTN Port, // rcx
93; IN UINTN Size, // rdx
94; IN VOID *Buffer // r8
95; );
96;------------------------------------------------------------------------------
97IoWriteFifo16 PROC
98 cld
99 xchg rcx, rdx
100 xchg rsi, r8 ; rsi: buffer address; r8: save rsi
101rep outsw
102 mov rsi, r8 ; restore rsi
103 ret
104IoWriteFifo16 ENDP
105
106;------------------------------------------------------------------------------
107; VOID
108; EFIAPI
109; IoWriteFifo32 (
110; IN UINTN Port, // rcx
111; IN UINTN Size, // rdx
112; IN VOID *Buffer // r8
113; );
114;------------------------------------------------------------------------------
115IoWriteFifo32 PROC
116 cld
117 xchg rcx, rdx
118 xchg rsi, r8 ; rsi: buffer address; r8: save rsi
119rep outsd
120 mov rsi, r8 ; restore rsi
121 ret
122IoWriteFifo32 ENDP
123
124 END
125