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git.gir.st - tmk_keyboard.git/blob - common/print.c
1 /* Copyright 2012 Jun Wako <wakojun@gmail.com> */
2 /* Very basic print functions, intended to be used with usb_debug_only.c
3 * http://www.pjrc.com/teensy/
4 * Copyright (c) 2008 PJRC.COM, LLC
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
26 #include <avr/pgmspace.h>
30 #define sendchar(c) do { if (print_enable && print_sendchar_func) (print_sendchar_func)(c); } while (0)
33 int8_t (*print_sendchar_func
)(uint8_t) = 0;
34 bool print_enable
= true;
37 /* print string stored in data memory(SRAM)
38 * print_P("hello world");
39 * This consumes precious SRAM memory space for string.
41 void print_S(const char *s
)
47 if (c
== '\n') sendchar('\r');
52 /* print string stored in program memory(FLASH)
53 * print_P(PSTR("hello world");
54 * This consumes relatively abundant FLASH memory area not SRAM.
56 void print_P(const char *s
)
60 c
= pgm_read_byte(s
++);
62 if (c
== '\n') sendchar('\r');
69 sendchar('\r'); sendchar('\n');
82 return (i
< 10 ? '0' + i
: 'A' + i
- 10);
86 void print_int(uint16_t data
, uint8_t base
)
90 if ((base
& SIGNED
) && (data
& 0x8000)) {
99 *(--p
) = itoc(n
- data
*base
);
101 if (buf
[0]) *(--p
) = buf
[0];
105 void print_dec(uint16_t data
)
107 print_int(data
, DEC
);
110 void print_decs(int16_t data
)
112 print_int(data
, DEC
|SIGNED
);
116 void print_hex4(uint8_t data
)
118 sendchar(data
+ ((data
< 10) ? '0' : 'A' - 10));
121 void print_hex8(uint8_t data
)
124 print_hex4(data
&0x0F);
127 void print_hex16(uint16_t data
)
133 void print_hex32(uint32_t data
)
135 print_hex16(data
>>16);
139 void print_bin4(uint8_t data
)
141 for (int i
= 4; i
>= 0; i
--) {
142 sendchar((data
& (1<<i
)) ? '1' : '0');
146 void print_bin8(uint8_t data
)
148 for (int i
= 7; i
>= 0; i
--) {
149 sendchar((data
& (1<<i
)) ? '1' : '0');
153 void print_bin16(uint16_t data
)
159 void print_bin32(uint32_t data
)
161 print_bin8(data
>>24);
162 print_bin8(data
>>16);
167 void print_bin_reverse8(uint8_t data
)
169 for (int i
= 0; i
< 8; i
++) {
170 sendchar((data
& (1<<i
)) ? '1' : '0');
174 void print_bin_reverse16(uint16_t data
)
176 print_bin_reverse8(data
);
177 print_bin_reverse8(data
>>8);
180 void print_bin_reverse32(uint32_t data
)
182 print_bin_reverse8(data
);
183 print_bin_reverse8(data
>>8);
184 print_bin_reverse8(data
>>16);
185 print_bin_reverse8(data
>>24);