e6e83a0814f85aff0208793bb6fc28a56158ef5a
[tmk_keyboard.git] / ps2_vusb / usart_print.h
1 /* Name: oddebug.h
2 * Project: AVR library
3 * Author: Christian Starkjohann
4 * Creation Date: 2005-01-16
5 * Tabsize: 4
6 * Copyright: (c) 2005 by OBJECTIVE DEVELOPMENT Software GmbH
7 * License: GNU GPL v2 (see License.txt), GNU GPL v3 or proprietary (CommercialLicense.txt)
8 * This Revision: $Id: oddebug.h 692 2008-11-07 15:07:40Z cs $
9 */
10
11 #ifndef __oddebug_h_included__
12 #define __oddebug_h_included__
13
14 /*
15 General Description:
16 This module implements a function for debug logs on the serial line of the
17 AVR microcontroller. Debugging can be configured with the define
18 'DEBUG_LEVEL'. If this macro is not defined or defined to 0, all debugging
19 calls are no-ops. If it is 1, DBG1 logs will appear, but not DBG2. If it is
20 2, DBG1 and DBG2 logs will be printed.
21
22 A debug log consists of a label ('prefix') to indicate which debug log created
23 the output and a memory block to dump in hex ('data' and 'len').
24 */
25
26
27 #ifndef F_CPU
28 # define F_CPU 12000000 /* 12 MHz */
29 #endif
30
31 /* make sure we have the UART defines: */
32 #include "usbportability.h"
33
34 #ifndef uchar
35 # define uchar unsigned char
36 #endif
37
38 #if DEBUG_LEVEL > 0 && !(defined TXEN || defined TXEN0) /* no UART in device */
39 # warning "Debugging disabled because device has no UART"
40 # undef DEBUG_LEVEL
41 #endif
42
43 #ifndef DEBUG_LEVEL
44 # define DEBUG_LEVEL 0
45 #endif
46
47 /* ------------------------------------------------------------------------- */
48
49 #if DEBUG_LEVEL > 0
50 # define DBG1(prefix, data, len) odDebug(prefix, data, len)
51 #else
52 # define DBG1(prefix, data, len)
53 #endif
54
55 #if DEBUG_LEVEL > 1
56 # define DBG2(prefix, data, len) odDebug(prefix, data, len)
57 #else
58 # define DBG2(prefix, data, len)
59 #endif
60
61 /* ------------------------------------------------------------------------- */
62
63 extern void odDebug(uchar prefix, uchar *data, uchar len);
64 void uartPutc(char c);
65 void printHex(uchar c);
66
67 /* Try to find our control registers; ATMEL likes to rename these */
68
69 #if defined UBRR
70 # define ODDBG_UBRR UBRR
71 #elif defined UBRRL
72 # define ODDBG_UBRR UBRRL
73 #elif defined UBRR0
74 # define ODDBG_UBRR UBRR0
75 #elif defined UBRR0L
76 # define ODDBG_UBRR UBRR0L
77 #endif
78
79 #if defined UCR
80 # define ODDBG_UCR UCR
81 #elif defined UCSRB
82 # define ODDBG_UCR UCSRB
83 #elif defined UCSR0B
84 # define ODDBG_UCR UCSR0B
85 #endif
86
87 #if defined TXEN
88 # define ODDBG_TXEN TXEN
89 #else
90 # define ODDBG_TXEN TXEN0
91 #endif
92
93 #if defined USR
94 # define ODDBG_USR USR
95 #elif defined UCSRA
96 # define ODDBG_USR UCSRA
97 #elif defined UCSR0A
98 # define ODDBG_USR UCSR0A
99 #endif
100
101 #if defined UDRE
102 # define ODDBG_UDRE UDRE
103 #else
104 # define ODDBG_UDRE UDRE0
105 #endif
106
107 #if defined UDR
108 # define ODDBG_UDR UDR
109 #elif defined UDR0
110 # define ODDBG_UDR UDR0
111 #endif
112
113 static inline void odDebugInit(void)
114 {
115 ODDBG_UCR |= (1<<ODDBG_TXEN);
116 ODDBG_UBRR = F_CPU / (57600 * 16L) - 1;
117 }
118
119 /* ------------------------------------------------------------------------- */
120
121 #endif /* __oddebug_h_included__ */
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