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331 | cascade | 1 | /**************************************************************************** |
2 | * Copyright (C) 2009 by Claas Anders "CaScAdE" Rathje * |
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3 | * admiralcascade@gmail.com * |
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4 | * Project-URL: http://www.mylifesucks.de/oss/c-osd/ * |
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5 | * * |
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6 | * This program is free software; you can redistribute it and/or modify * |
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7 | * it under the terms of the GNU General Public License as published by * |
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8 | * the Free Software Foundation; either version 2 of the License. * |
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9 | * * |
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10 | * This program is distributed in the hope that it will be useful, * |
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11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
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12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
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13 | * GNU General Public License for more details. * |
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14 | * * |
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15 | * You should have received a copy of the GNU General Public License * |
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16 | * along with this program; if not, write to the * |
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17 | * Free Software Foundation, Inc., * |
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18 | * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * |
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19 | ****************************************************************************/ |
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20 | |||
21 | /* ########################################################################## |
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22 | * Software SPI to communicate with MAX7456 |
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23 | * ##########################################################################*/ |
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24 | #define MAX_CS_HIGH PORTA |= (1 << PA1); |
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25 | #define MAX_CS_LOW PORTA &= ~(1 << PA1); |
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26 | #define MAX_SDIN_HIGH PORTA |= (1 << PA2); |
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27 | #define MAX_SDIN_LOW PORTA &= ~(1 << PA2); |
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28 | #define MAX_SCLK_HIGH PORTA |= (1 << PA3); |
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29 | #define MAX_SCLK_LOW PORTA &= ~(1 << PA3); |
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30 | #define MAX_RESET_HIGH PORTA |= (1 << PA5); |
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31 | #define MAX_RESET_LOW PORTA &= ~(1 << PA5); |
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32 | |||
33 | |||
34 | /* ########################################################################## |
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35 | * MAX7456 SPI & Display stuff |
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36 | * ##########################################################################*/ |
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37 | |||
38 | /** |
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39 | * Send a byte through SPI |
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40 | */ |
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41 | void spi_send(uint8_t); |
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42 | |||
43 | /** |
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44 | * Send <byte> to <address> of MAX7456 |
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45 | */ |
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46 | void spi_send_byte(uint8_t, uint8_t); |
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47 | |||
48 | /** |
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49 | * write a <character> to <address> of MAX7456 display memory |
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50 | */ |
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51 | void write_char(uint16_t, char); |
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52 | |||
53 | /** |
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54 | * write a character <attribute> to <address> of MAX7456 display memory |
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55 | */ |
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56 | void write_char_att(uint16_t, char); |
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57 | /** |
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58 | * write a <character> at <x>/<y> to MAX7456 display memory |
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59 | */ |
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60 | void write_char_xy(uint8_t, uint8_t, char); |
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61 | /** |
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62 | * write a character <attribute> at <x>/<y> to MAX7456 display memory |
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63 | */ |
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64 | void write_char_att_xy(uint8_t, uint8_t, char attribute); |
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65 | |||
66 | /** |
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404 | cascade | 67 | * clear display memory |
68 | * (also sets 8bit mode) |
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331 | cascade | 69 | */ |
70 | void clear(void); |
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71 | |||
72 | /** |
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73 | * write an ascii <character> to <address> of MAX7456 display memory |
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74 | */ |
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75 | void write_ascii_char(uint16_t, char); |
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76 | |||
77 | /** |
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78 | * write an ascii <string> at <x>/<y> to MAX7456 display memory |
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79 | */ |
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80 | void write_ascii_string(uint8_t, uint8_t, char*); |
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81 | |||
82 | /** |
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346 | cascade | 83 | * write an ascii <string> from progmen at <x>/<y> to MAX7456 display memory |
84 | */ |
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489 | woggle | 85 | void write_ascii_string_pgm(uint8_t, uint8_t, const char*); |
346 | cascade | 86 | |
87 | /** |
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379 | cascade | 88 | * write an <string> from progmen at <x>/<y> downwards to MAX7456 display memory |
89 | */ |
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489 | woggle | 90 | void write_string_pgm_down(uint8_t, uint8_t, const char*, uint8_t); |
379 | cascade | 91 | |
92 | /** |
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349 | cascade | 93 | * Write only some digits of a unsigned <number> at <x>/<y> to MAX7456 display memory |
94 | * <num> represents the largest multiple of 10 that will still be displayable as |
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95 | * the first digit, so num = 10 will be 0-99 and so on |
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96 | * <pad> = 1 will cause blank spaced to be filled up with zeros e.g. 007 instead of 7 |
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331 | cascade | 97 | */ |
349 | cascade | 98 | void write_ndigit_number_u(uint8_t, uint8_t, uint16_t, int16_t, uint8_t); |
331 | cascade | 99 | |
100 | /** |
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349 | cascade | 101 | * Write only some digits of a signed <number> at <x>/<y> to MAX7456 display memory |
102 | * <num> represents the largest multiple of 10 that will still be displayable as |
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103 | * the first digit, so num = 10 will be 0-99 and so on |
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104 | * <pad> = 1 will cause blank spaced to be filled up with zeros e.g. 007 instead of 7 |
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331 | cascade | 105 | */ |
349 | cascade | 106 | void write_ndigit_number_s(uint8_t, uint8_t, int16_t, int16_t, uint8_t); |
331 | cascade | 107 | |
108 | /** |
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349 | cascade | 109 | * Write only some digits of a unsigned <number> at <x>/<y> to MAX7456 display memory |
110 | * as /10th of the value |
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111 | * <num> represents the largest multiple of 10 that will still be displayable as |
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112 | * the first digit, so num = 10 will be 0-99 and so on |
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113 | * <pad> = 1 will cause blank spaced to be filled up with zeros e.g. 00.7 instead of .7 |
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331 | cascade | 114 | */ |
349 | cascade | 115 | void write_ndigit_number_u_10th(uint8_t, uint8_t, uint16_t, int16_t, uint8_t); |
331 | cascade | 116 | |
117 | /** |
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349 | cascade | 118 | * Write only some digits of a signed <number> at <x>/<y> to MAX7456 display memory |
119 | * as /10th of the value |
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120 | * <num> represents the largest multiple of 10 that will still be displayable as |
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121 | * the first digit, so num = 10 will be 0-99 and so on |
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122 | * <pad> = 1 will cause blank spaced to be filled up with zeros e.g. 00.7 instead of .7 |
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331 | cascade | 123 | */ |
349 | cascade | 124 | void write_ndigit_number_s_10th(uint8_t, uint8_t, int16_t, int16_t, uint8_t); |
331 | cascade | 125 | |
126 | /** |
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127 | * write <seconds> as human readable time at <x>/<y> to MAX7456 display mem |
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128 | */ |
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129 | void write_time(uint8_t, uint8_t, uint16_t); |
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130 | |||
131 | /** |
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132 | * for testing write all chars to screen |
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133 | */ |
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134 | void write_all_chars(); |
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135 | |||
136 | /** |
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137 | * let the MAX7456 learn a new character at <number> |
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138 | * with <data>. |
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139 | */ |
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140 | void learn_char(uint8_t, unsigned char*); |
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412 | cascade | 141 | |
142 | /** |
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143 | * wirte a <position> at <x>/<y> assuming it is a gps position for long-/latitude |
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144 | */ |
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145 | void write_gps_pos(uint8_t, uint8_t, int32_t); |