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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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67 | * clear display by writing blank characters all over it |
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68 | */ |
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69 | void clear(void); |
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70 | |||
71 | /** |
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72 | * write an ascii <character> to <address> of MAX7456 display memory |
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73 | */ |
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74 | void write_ascii_char(uint16_t, char); |
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75 | |||
76 | /** |
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77 | * write an ascii <string> at <x>/<y> to MAX7456 display memory |
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78 | */ |
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79 | void write_ascii_string(uint8_t, uint8_t, char*); |
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80 | |||
81 | /** |
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346 | cascade | 82 | * write an ascii <string> from progmen at <x>/<y> to MAX7456 display memory |
83 | */ |
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84 | void write_ascii_string_pgm(uint8_t, uint8_t, char*); |
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85 | |||
86 | /** |
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349 | cascade | 87 | * Write only some digits of a unsigned <number> at <x>/<y> to MAX7456 display memory |
88 | * <num> represents the largest multiple of 10 that will still be displayable as |
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89 | * the first digit, so num = 10 will be 0-99 and so on |
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90 | * <pad> = 1 will cause blank spaced to be filled up with zeros e.g. 007 instead of 7 |
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331 | cascade | 91 | */ |
349 | cascade | 92 | void write_ndigit_number_u(uint8_t, uint8_t, uint16_t, int16_t, uint8_t); |
331 | cascade | 93 | |
94 | /** |
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349 | cascade | 95 | * Write only some digits of a signed <number> at <x>/<y> to MAX7456 display memory |
96 | * <num> represents the largest multiple of 10 that will still be displayable as |
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97 | * the first digit, so num = 10 will be 0-99 and so on |
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98 | * <pad> = 1 will cause blank spaced to be filled up with zeros e.g. 007 instead of 7 |
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331 | cascade | 99 | */ |
349 | cascade | 100 | void write_ndigit_number_s(uint8_t, uint8_t, int16_t, int16_t, uint8_t); |
331 | cascade | 101 | |
102 | /** |
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349 | cascade | 103 | * Write only some digits of a unsigned <number> at <x>/<y> to MAX7456 display memory |
104 | * as /10th of the value |
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105 | * <num> represents the largest multiple of 10 that will still be displayable as |
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106 | * the first digit, so num = 10 will be 0-99 and so on |
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107 | * <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 | 108 | */ |
349 | cascade | 109 | void write_ndigit_number_u_10th(uint8_t, uint8_t, uint16_t, int16_t, uint8_t); |
331 | cascade | 110 | |
111 | /** |
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349 | cascade | 112 | * Write only some digits of a signed <number> at <x>/<y> to MAX7456 display memory |
113 | * as /10th of the value |
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114 | * <num> represents the largest multiple of 10 that will still be displayable as |
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115 | * the first digit, so num = 10 will be 0-99 and so on |
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116 | * <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 | 117 | */ |
349 | cascade | 118 | void write_ndigit_number_s_10th(uint8_t, uint8_t, int16_t, int16_t, uint8_t); |
331 | cascade | 119 | |
120 | /** |
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121 | * write <seconds> as human readable time at <x>/<y> to MAX7456 display mem |
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122 | */ |
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123 | void write_time(uint8_t, uint8_t, uint16_t); |
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124 | |||
125 | /** |
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126 | * for testing write all chars to screen |
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127 | */ |
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128 | void write_all_chars(); |
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129 | |||
130 | /** |
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131 | * let the MAX7456 learn a new character at <number> |
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132 | * with <data>. |
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133 | */ |
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134 | void learn_char(uint8_t, unsigned char*); |