1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104 | -- Abstract interface for I2C bus controllers
-- Copyright (C)2016-2023, Philip Munts dba Munts Technologies.
--
-- Redistribution and use in source and binary forms, with or without
-- modification, are permitted provided that the following conditions are met:
--
-- * Redistributions of source code must retain the above copyright notice,
-- this list of conditions and the following disclaimer.
--
-- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-- AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-- IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-- ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
-- LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
-- CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
-- SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-- INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
-- CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-- ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-- POSSIBILITY OF SUCH DAMAGE.
WITH Ada.Strings.Fixed;
WITH Ada.Text_IO; USE Ada.Text_IO;
PACKAGE BODY I2C IS
PACKAGE ByteIO IS NEW Ada.Text_IO.Modular_IO(Byte);
-- Dump a command buffer in hexadecimal format
PROCEDURE Dump
(cmd : Command;
cmdlen : Natural := Natural'Last) IS
buf : String(1 .. 6);
count : Natural := cmdlen;
BEGIN
FOR b OF cmd LOOP
EXIT WHEN count = 0;
ByteIO.Put(buf, b, 16);
IF buf(1) = ' ' THEN
Ada.Strings.Fixed.Insert(buf, 5, "0", Ada.Strings.Left);
END IF;
Ada.Strings.Fixed.Replace_Slice(buf, 6, 6, " ");
Ada.Strings.Fixed.Replace_Slice(buf, 1, 3, " ");
Put(Ada.Strings.Fixed.Trim(buf, Ada.Strings.Both));
Put(" ");
count := count - 1;
END LOOP;
New_Line;
END Dump;
-- Dump a response buffer in hexadecimal format
PROCEDURE Dump
(resp : Response;
resplen : Natural := Natural'Last) IS
buf : String(1 .. 6);
count : Natural := resplen;
BEGIN
FOR b OF resp LOOP
EXIT WHEN count = 0;
ByteIO.Put(buf, b, 16);
IF buf(1) = ' ' THEN
Ada.Strings.Fixed.Insert(buf, 5, "0", Ada.Strings.Left);
END IF;
Ada.Strings.Fixed.Replace_Slice(buf, 6, 6, " ");
Ada.Strings.Fixed.Replace_Slice(buf, 1, 3, " ");
Put(Ada.Strings.Fixed.Trim(buf, Ada.Strings.Both));
Put(" ");
count := count - 1;
END LOOP;
New_Line;
END Dump;
-- Get an I2C address value from operator
FUNCTION GetAddress(prompt : String) RETURN Address IS
addr : Address;
BEGIN
Put(prompt);
AddressIO.Get(addr);
RETURN addr;
END GetAddress;
END I2C;
|