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Dependencies:   mbed Blynk

u8glibARM/u8g_com_api.c@1:0e75de2a5d21, 2016-06-13 (annotated)

Committer:
lixianyu
Date:
Mon Jun 13 02:21:11 2016 +0000
Revision:
1:0e75de2a5d21
Parent:
0:d8f4c441e032 
u8glib???????????????????????????Adafruit_GFX????OLED????????bitmap??????

Who changed what in which revision?

UserRevisionLine numberNew contents of line
lixianyu 1:0e75de2a5d21 1 /*
lixianyu 1:0e75de2a5d21 2
lixianyu 1:0e75de2a5d21 3 u8g_com_api.c
lixianyu 1:0e75de2a5d21 4
lixianyu 1:0e75de2a5d21 5 Universal 8bit Graphics Library
lixianyu 1:0e75de2a5d21 6
lixianyu 1:0e75de2a5d21 7 Copyright (c) 2011, olikraus@gmail.com
lixianyu 1:0e75de2a5d21 8 All rights reserved.
lixianyu 1:0e75de2a5d21 9
lixianyu 1:0e75de2a5d21 10 Redistribution and use in source and binary forms, with or without modification,
lixianyu 1:0e75de2a5d21 11 are permitted provided that the following conditions are met:
lixianyu 1:0e75de2a5d21 12
lixianyu 1:0e75de2a5d21 13 * Redistributions of source code must retain the above copyright notice, this list
lixianyu 1:0e75de2a5d21 14 of conditions and the following disclaimer.
lixianyu 1:0e75de2a5d21 15
lixianyu 1:0e75de2a5d21 16 * Redistributions in binary form must reproduce the above copyright notice, this
lixianyu 1:0e75de2a5d21 17 list of conditions and the following disclaimer in the documentation and/or other
lixianyu 1:0e75de2a5d21 18 materials provided with the distribution.
lixianyu 1:0e75de2a5d21 19
lixianyu 1:0e75de2a5d21 20 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
lixianyu 1:0e75de2a5d21 21 CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
lixianyu 1:0e75de2a5d21 22 INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
lixianyu 1:0e75de2a5d21 23 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
lixianyu 1:0e75de2a5d21 24 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
lixianyu 1:0e75de2a5d21 25 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
lixianyu 1:0e75de2a5d21 26 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
lixianyu 1:0e75de2a5d21 27 NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
lixianyu 1:0e75de2a5d21 28 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
lixianyu 1:0e75de2a5d21 29 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
lixianyu 1:0e75de2a5d21 30 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
lixianyu 1:0e75de2a5d21 31 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
lixianyu 1:0e75de2a5d21 32 ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
lixianyu 1:0e75de2a5d21 33
lixianyu 1:0e75de2a5d21 34
lixianyu 1:0e75de2a5d21 35 */
lixianyu 1:0e75de2a5d21 36
lixianyu 1:0e75de2a5d21 37 #include "u8g.h"
lixianyu 1:0e75de2a5d21 38
lixianyu 1:0e75de2a5d21 39 uint8_t u8g_InitCom(u8g_t *u8g, u8g_dev_t *dev, uint8_t clk_cycle_time)
lixianyu 1:0e75de2a5d21 40 {
lixianyu 1:0e75de2a5d21 41 return dev->com_fn(u8g, U8G_COM_MSG_INIT, clk_cycle_time, NULL);
lixianyu 1:0e75de2a5d21 42 }
lixianyu 1:0e75de2a5d21 43
lixianyu 1:0e75de2a5d21 44 void u8g_StopCom(u8g_t *u8g, u8g_dev_t *dev)
lixianyu 1:0e75de2a5d21 45 {
lixianyu 1:0e75de2a5d21 46 dev->com_fn(u8g, U8G_COM_MSG_STOP, 0, NULL);
lixianyu 1:0e75de2a5d21 47 }
lixianyu 1:0e75de2a5d21 48
lixianyu 1:0e75de2a5d21 49 /* cs contains the chip number, which should be enabled */
lixianyu 1:0e75de2a5d21 50 void u8g_SetChipSelect(u8g_t *u8g, u8g_dev_t *dev, uint8_t cs)
lixianyu 1:0e75de2a5d21 51 {
lixianyu 1:0e75de2a5d21 52 dev->com_fn(u8g, U8G_COM_MSG_CHIP_SELECT, cs, NULL);
lixianyu 1:0e75de2a5d21 53 }
lixianyu 1:0e75de2a5d21 54
lixianyu 1:0e75de2a5d21 55 void u8g_SetResetLow(u8g_t *u8g, u8g_dev_t *dev)
lixianyu 1:0e75de2a5d21 56 {
lixianyu 1:0e75de2a5d21 57 dev->com_fn(u8g, U8G_COM_MSG_RESET, 0, NULL);
lixianyu 1:0e75de2a5d21 58 }
lixianyu 1:0e75de2a5d21 59
lixianyu 1:0e75de2a5d21 60 void u8g_SetResetHigh(u8g_t *u8g, u8g_dev_t *dev)
lixianyu 1:0e75de2a5d21 61 {
lixianyu 1:0e75de2a5d21 62 dev->com_fn(u8g, U8G_COM_MSG_RESET, 1, NULL);
lixianyu 1:0e75de2a5d21 63 }
lixianyu 1:0e75de2a5d21 64
lixianyu 1:0e75de2a5d21 65
lixianyu 1:0e75de2a5d21 66 void u8g_SetAddress(u8g_t *u8g, u8g_dev_t *dev, uint8_t address)
lixianyu 1:0e75de2a5d21 67 {
lixianyu 1:0e75de2a5d21 68 dev->com_fn(u8g, U8G_COM_MSG_ADDRESS, address, NULL);
lixianyu 1:0e75de2a5d21 69 }
lixianyu 1:0e75de2a5d21 70
lixianyu 1:0e75de2a5d21 71 uint8_t u8g_WriteByte(u8g_t *u8g, u8g_dev_t *dev, uint8_t val)
lixianyu 1:0e75de2a5d21 72 {
lixianyu 1:0e75de2a5d21 73 return dev->com_fn(u8g, U8G_COM_MSG_WRITE_BYTE, val, NULL);
lixianyu 1:0e75de2a5d21 74 }
lixianyu 0:d8f4c441e032 75
lixianyu 1:0e75de2a5d21 76 uint8_t u8g_WriteSequence(u8g_t *u8g, u8g_dev_t *dev, uint8_t cnt, uint8_t *seq)
lixianyu 1:0e75de2a5d21 77 {
lixianyu 1:0e75de2a5d21 78 return dev->com_fn(u8g, U8G_COM_MSG_WRITE_SEQ, cnt, seq);
lixianyu 1:0e75de2a5d21 79 }
lixianyu 1:0e75de2a5d21 80
lixianyu 1:0e75de2a5d21 81 uint8_t u8g_WriteSequenceP(u8g_t *u8g, u8g_dev_t *dev, uint8_t cnt, const uint8_t *seq)
lixianyu 1:0e75de2a5d21 82 {
lixianyu 1:0e75de2a5d21 83 return dev->com_fn(u8g, U8G_COM_MSG_WRITE_SEQ_P, cnt, (void *)seq);
lixianyu 1:0e75de2a5d21 84 }
lixianyu 1:0e75de2a5d21 85
lixianyu 1:0e75de2a5d21 86 /*
lixianyu 1:0e75de2a5d21 87 sequence := { direct_value | escape_sequence }
lixianyu 1:0e75de2a5d21 88 direct_value := 0..254
lixianyu 1:0e75de2a5d21 89 escape_sequence := value_255 | sequence_end | delay | adr | cs | not_used
lixianyu 1:0e75de2a5d21 90 value_255 := 255 255
lixianyu 1:0e75de2a5d21 91 sequence_end = 255 254
lixianyu 1:0e75de2a5d21 92 delay := 255 0..127
lixianyu 1:0e75de2a5d21 93 adr := 255 0x0e0 .. 0x0ef
lixianyu 1:0e75de2a5d21 94 cs := 255 0x0d0 .. 0x0df
lixianyu 1:0e75de2a5d21 95 not_used := 255 101..254
lixianyu 1:0e75de2a5d21 96
lixianyu 1:0e75de2a5d21 97 #define U8G_ESC_DLY(x) 255, ((x) & 0x7f)
lixianyu 1:0e75de2a5d21 98 #define U8G_ESC_CS(x) 255, (0xd0 | ((x)&0x0f))
lixianyu 1:0e75de2a5d21 99 #define U8G_ESC_ADR(x) 255, (0xe0 | ((x)&0x0f))
lixianyu 1:0e75de2a5d21 100 #define U8G_ESC_VCC(x) 255, (0xbe | ((x)&0x01))
lixianyu 1:0e75de2a5d21 101 #define U8G_ESC_END 255, 254
lixianyu 1:0e75de2a5d21 102 #define U8G_ESC_255 255, 255
lixianyu 1:0e75de2a5d21 103 #define U8G_ESC_RST(x) 255, (0xc0 | ((x)&0x0f))
lixianyu 1:0e75de2a5d21 104
lixianyu 1:0e75de2a5d21 105 */
lixianyu 1:0e75de2a5d21 106 uint8_t u8g_WriteEscSeqP(u8g_t *u8g, u8g_dev_t *dev, const uint8_t *esc_seq)
lixianyu 1:0e75de2a5d21 107 {
lixianyu 1:0e75de2a5d21 108 uint8_t is_escape = 0;
lixianyu 1:0e75de2a5d21 109 uint8_t value;
lixianyu 1:0e75de2a5d21 110 for(;;) {
lixianyu 1:0e75de2a5d21 111 value = u8g_pgm_read(esc_seq);
lixianyu 1:0e75de2a5d21 112 if ( is_escape == 0 ) {
lixianyu 1:0e75de2a5d21 113 if ( value != 255 ) {
lixianyu 1:0e75de2a5d21 114 if ( u8g_WriteByte(u8g, dev, value) == 0 )
lixianyu 1:0e75de2a5d21 115 return 0;
lixianyu 1:0e75de2a5d21 116 } else {
lixianyu 1:0e75de2a5d21 117 is_escape = 1;
lixianyu 1:0e75de2a5d21 118 }
lixianyu 1:0e75de2a5d21 119 } else {
lixianyu 1:0e75de2a5d21 120 if ( value == 255 ) {
lixianyu 1:0e75de2a5d21 121 if ( u8g_WriteByte(u8g, dev, value) == 0 )
lixianyu 1:0e75de2a5d21 122 return 0;
lixianyu 1:0e75de2a5d21 123 } else if ( value == 254 ) {
lixianyu 1:0e75de2a5d21 124 break;
lixianyu 1:0e75de2a5d21 125 } else if ( value >= 0x0f0 ) {
lixianyu 1:0e75de2a5d21 126 /* not yet used, do nothing */
lixianyu 1:0e75de2a5d21 127 } else if ( value >= 0xe0 ) {
lixianyu 1:0e75de2a5d21 128 u8g_SetAddress(u8g, dev, value & 0x0f);
lixianyu 1:0e75de2a5d21 129 } else if ( value >= 0xd0 ) {
lixianyu 1:0e75de2a5d21 130 u8g_SetChipSelect(u8g, dev, value & 0x0f);
lixianyu 1:0e75de2a5d21 131 } else if ( value >= 0xc0 ) {
lixianyu 1:0e75de2a5d21 132 u8g_SetResetLow(u8g, dev);
lixianyu 1:0e75de2a5d21 133 value &= 0x0f;
lixianyu 1:0e75de2a5d21 134 value <<= 4;
lixianyu 1:0e75de2a5d21 135 value+=2;
lixianyu 1:0e75de2a5d21 136 u8g_Delay(value);
lixianyu 1:0e75de2a5d21 137 u8g_SetResetHigh(u8g, dev);
lixianyu 1:0e75de2a5d21 138 u8g_Delay(value);
lixianyu 1:0e75de2a5d21 139 } else if ( value >= 0xbe ) {
lixianyu 1:0e75de2a5d21 140 /* not yet implemented */
lixianyu 1:0e75de2a5d21 141 /* u8g_SetVCC(u8g, dev, value & 0x01); */
lixianyu 1:0e75de2a5d21 142 } else if ( value <= 127 ) {
lixianyu 1:0e75de2a5d21 143 u8g_Delay(value);
lixianyu 1:0e75de2a5d21 144 }
lixianyu 1:0e75de2a5d21 145 is_escape = 0;
lixianyu 1:0e75de2a5d21 146 }
lixianyu 1:0e75de2a5d21 147 esc_seq++;
lixianyu 1:0e75de2a5d21 148 }
lixianyu 1:0e75de2a5d21 149 return 1;
lixianyu 1:0e75de2a5d21 150 }
lixianyu 1:0e75de2a5d21 151
lixianyu 1:0e75de2a5d21 152