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| Rev | Author | Line No. | Line |
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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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| 331 | cascade | 87 | * Write only the last three digits of a <number> at <x>/<y> to MAX7456 |
| 88 | * display memory. takes full 16bit numbers as well for stuff |
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| 89 | * like compass only taking three characters (values <= 999) |
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| 90 | */ |
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| 91 | void write_3digit_number_u(uint8_t, uint8_t, uint16_t); |
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| 92 | |||
| 93 | /** |
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| 94 | * Write only the last two digits of a number at <x>/<y> to MAX7456 |
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| 95 | * display memory. takes full 16bit numbers as well for stuff |
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| 96 | * like seconds only taking two characters (values <= 99) |
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| 97 | * Since this is used for seconds only and it looks better, there |
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| 98 | * is a trading 0 attached |
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| 99 | */ |
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| 100 | void write_2digit_number_u(uint8_t, uint8_t, uint16_t); |
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| 101 | /** |
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| 102 | * write a unsigned number as /10th at <x>/<y> to MAX7456 display memory |
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| 103 | */ |
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| 104 | void write_number_u_10th(uint8_t, uint8_t, uint16_t); |
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| 105 | |||
| 106 | /** |
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| 107 | * write a unsigned number at <x>/<y> to MAX7456 display memory |
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| 108 | */ |
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| 109 | void write_number_u(uint8_t, uint8_t, uint16_t); |
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| 110 | |||
| 111 | /** |
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| 112 | * write a signed number at <x>/<y> to MAX7456 display memory |
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| 113 | */ |
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| 114 | void write_number_s(uint8_t, uint8_t, int16_t); |
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| 115 | |||
| 116 | /** |
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| 117 | * write <seconds> as human readable time at <x>/<y> to MAX7456 display mem |
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| 118 | */ |
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| 119 | void write_time(uint8_t, uint8_t, uint16_t); |
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| 120 | |||
| 121 | /** |
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| 122 | * for testing write all chars to screen |
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| 123 | */ |
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| 124 | void write_all_chars(); |
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| 125 | |||
| 126 | /** |
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| 127 | * let the MAX7456 learn a new character at <number> |
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| 128 | * with <data>. |
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| 129 | */ |
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| 130 | void learn_char(uint8_t, unsigned char*); |