Arunkumar Mourougappane / UniGraphic

UniGraphics Library Fork to support mbed os 6.3 Release for ILI9341

Dependents:   TFT_ILI9341_UniGraphic TFT_ILI9341_os6

Protocols/I2C_bus.cpp@0:bb2bda4f5846, 2020-10-06 (annotated)

Committer:
amouroug
Date:
Tue Oct 06 05:07:55 2020 +0000
Revision:
0:bb2bda4f5846
Unigraphics Library Fork to support mbed-os 6.3 for ILI9341;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
amouroug 0:bb2bda4f5846 1 /* mbed UniGraphic library - I2C protocol class
amouroug 0:bb2bda4f5846 2 * Copyright (c) 2017 Peter Drescher
amouroug 0:bb2bda4f5846 3 * Released under the MIT License: http://mbed.org/license/mit
amouroug 0:bb2bda4f5846 4 *
amouroug 0:bb2bda4f5846 5 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
amouroug 0:bb2bda4f5846 6 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
amouroug 0:bb2bda4f5846 7 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
amouroug 0:bb2bda4f5846 8 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
amouroug 0:bb2bda4f5846 9 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
amouroug 0:bb2bda4f5846 10 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
amouroug 0:bb2bda4f5846 11 * THE SOFTWARE.
amouroug 0:bb2bda4f5846 12 */
amouroug 0:bb2bda4f5846 13
amouroug 0:bb2bda4f5846 14 #include "I2C_bus.h"
amouroug 0:bb2bda4f5846 15
amouroug 0:bb2bda4f5846 16 I2C_bus::I2C_bus(int Hz, int address, PinName sda, PinName scl)
amouroug 0:bb2bda4f5846 17 : _i2c(sda,scl)
amouroug 0:bb2bda4f5846 18 {
amouroug 0:bb2bda4f5846 19 _i2c.frequency(Hz);
amouroug 0:bb2bda4f5846 20 _address = address;
amouroug 0:bb2bda4f5846 21 //hw_reset();
amouroug 0:bb2bda4f5846 22 }
amouroug 0:bb2bda4f5846 23
amouroug 0:bb2bda4f5846 24 void I2C_bus::wr_cmd8(unsigned char cmd)
amouroug 0:bb2bda4f5846 25 {
amouroug 0:bb2bda4f5846 26 char tmp[2];
amouroug 0:bb2bda4f5846 27 tmp[0] = 0x00; //command
amouroug 0:bb2bda4f5846 28 tmp[1] = cmd;
amouroug 0:bb2bda4f5846 29 _i2c.write(_address,tmp,2);
amouroug 0:bb2bda4f5846 30 }
amouroug 0:bb2bda4f5846 31 void I2C_bus::wr_data8(unsigned char data)
amouroug 0:bb2bda4f5846 32 {
amouroug 0:bb2bda4f5846 33 _i2c.write(data); // write 8bit
amouroug 0:bb2bda4f5846 34 }
amouroug 0:bb2bda4f5846 35 void I2C_bus::wr_cmd16(unsigned short cmd)
amouroug 0:bb2bda4f5846 36 {
amouroug 0:bb2bda4f5846 37 char tmp[3];
amouroug 0:bb2bda4f5846 38 tmp[0] = 00; //command
amouroug 0:bb2bda4f5846 39 tmp[1] = cmd>>8;
amouroug 0:bb2bda4f5846 40 tmp[2] = cmd&0xFF;
amouroug 0:bb2bda4f5846 41
amouroug 0:bb2bda4f5846 42 _i2c.write(_address,tmp,3);
amouroug 0:bb2bda4f5846 43 }
amouroug 0:bb2bda4f5846 44 void I2C_bus::wr_data16(unsigned short data)
amouroug 0:bb2bda4f5846 45 {
amouroug 0:bb2bda4f5846 46 _i2c.write(data>>8); // write 8bit
amouroug 0:bb2bda4f5846 47 _i2c.write(data&0xFF); // write 8bit
amouroug 0:bb2bda4f5846 48 }
amouroug 0:bb2bda4f5846 49 void I2C_bus::wr_gram(unsigned short data)
amouroug 0:bb2bda4f5846 50 {
amouroug 0:bb2bda4f5846 51 _i2c.write(data>>8); // write 8bit
amouroug 0:bb2bda4f5846 52 _i2c.write(data&0xFF); // write 8bit
amouroug 0:bb2bda4f5846 53 }
amouroug 0:bb2bda4f5846 54 void I2C_bus::wr_gram(unsigned short data, unsigned int count)
amouroug 0:bb2bda4f5846 55 {
amouroug 0:bb2bda4f5846 56 _i2c.start();
amouroug 0:bb2bda4f5846 57 _i2c.write(_address);
amouroug 0:bb2bda4f5846 58 _i2c.write(0x40); // data continue
amouroug 0:bb2bda4f5846 59 if((data>>8)==(data&0xFF))
amouroug 0:bb2bda4f5846 60 {
amouroug 0:bb2bda4f5846 61 count<<=1;
amouroug 0:bb2bda4f5846 62 while(count)
amouroug 0:bb2bda4f5846 63 {
amouroug 0:bb2bda4f5846 64 _i2c.write(data); // write 8bit
amouroug 0:bb2bda4f5846 65 count--;
amouroug 0:bb2bda4f5846 66 }
amouroug 0:bb2bda4f5846 67 }
amouroug 0:bb2bda4f5846 68 else
amouroug 0:bb2bda4f5846 69 {
amouroug 0:bb2bda4f5846 70 while(count)
amouroug 0:bb2bda4f5846 71 {
amouroug 0:bb2bda4f5846 72 _i2c.write(data>>8); // write 8bit
amouroug 0:bb2bda4f5846 73 _i2c.write(data&0xFF); // write 8bit
amouroug 0:bb2bda4f5846 74 count--;
amouroug 0:bb2bda4f5846 75 }
amouroug 0:bb2bda4f5846 76 }
amouroug 0:bb2bda4f5846 77 _i2c.stop();
amouroug 0:bb2bda4f5846 78 }
amouroug 0:bb2bda4f5846 79 void I2C_bus::wr_grambuf(unsigned short* data, unsigned int lenght)
amouroug 0:bb2bda4f5846 80 {
amouroug 0:bb2bda4f5846 81 _i2c.start();
amouroug 0:bb2bda4f5846 82 _i2c.write(_address);
amouroug 0:bb2bda4f5846 83 _i2c.write(0x40); // data continue
amouroug 0:bb2bda4f5846 84 while(lenght)
amouroug 0:bb2bda4f5846 85 {
amouroug 0:bb2bda4f5846 86 _i2c.write((*data)>>8); // write 8bit
amouroug 0:bb2bda4f5846 87 _i2c.write((*data)&0xFF); // write 8bit
amouroug 0:bb2bda4f5846 88 data++;
amouroug 0:bb2bda4f5846 89 lenght--;
amouroug 0:bb2bda4f5846 90 }
amouroug 0:bb2bda4f5846 91 _i2c.stop();
amouroug 0:bb2bda4f5846 92 }
amouroug 0:bb2bda4f5846 93
amouroug 0:bb2bda4f5846 94 void I2C_bus::hw_reset()
amouroug 0:bb2bda4f5846 95 {
amouroug 0:bb2bda4f5846 96
amouroug 0:bb2bda4f5846 97 }
amouroug 0:bb2bda4f5846 98 void I2C_bus::BusEnable(bool enable)
amouroug 0:bb2bda4f5846 99 {
amouroug 0:bb2bda4f5846 100 }
amouroug 0:bb2bda4f5846 101
amouroug 0:bb2bda4f5846 102 void I2C_bus::reg_select(unsigned char reg, bool forread)
amouroug 0:bb2bda4f5846 103 {
amouroug 0:bb2bda4f5846 104 }
amouroug 0:bb2bda4f5846 105
amouroug 0:bb2bda4f5846 106 unsigned int I2C_bus::rd_reg_data32(unsigned char reg)
amouroug 0:bb2bda4f5846 107 {
amouroug 0:bb2bda4f5846 108 return 0;
amouroug 0:bb2bda4f5846 109 }
amouroug 0:bb2bda4f5846 110
amouroug 0:bb2bda4f5846 111 unsigned int I2C_bus::rd_extcreg_data32(unsigned char reg, unsigned char SPIreadenablecmd)
amouroug 0:bb2bda4f5846 112 {
amouroug 0:bb2bda4f5846 113 return 0;
amouroug 0:bb2bda4f5846 114 }
amouroug 0:bb2bda4f5846 115
amouroug 0:bb2bda4f5846 116 void I2C_bus::dummyread()
amouroug 0:bb2bda4f5846 117 {
amouroug 0:bb2bda4f5846 118 }
amouroug 0:bb2bda4f5846 119
amouroug 0:bb2bda4f5846 120 unsigned short I2C_bus::rd_gram(bool convert)
amouroug 0:bb2bda4f5846 121 {
amouroug 0:bb2bda4f5846 122 return (0);
amouroug 0:bb2bda4f5846 123 }
amouroug 0:bb2bda4f5846 124
amouroug 0:bb2bda4f5846 125 unsigned short I2C_bus::reg_read(unsigned char reg)
amouroug 0:bb2bda4f5846 126 {
amouroug 0:bb2bda4f5846 127 return (0);
amouroug 0:bb2bda4f5846 128 }
amouroug 0:bb2bda4f5846 129
amouroug 0:bb2bda4f5846 130 void I2C_bus::reg_write(unsigned char reg, unsigned short data)
amouroug 0:bb2bda4f5846 131 {
amouroug 0:bb2bda4f5846 132 }