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ft800.c
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ft800.c
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/**
******************************************************************************
* Home Automation System - Central Unit
******************************************************************************
* @author Akos Pasztor (http://akospasztor.com)
* @file ft800.c
* @brief FT800 Display Controller Library
* This file contains the initialization and functions for
* the FT800 EVE module.
* @info http://www.ftdichip.com/Products/ICs/FT800.html
******************************************************************************
* Copyright (c) 2014 Akos Pasztor. All rights reserved.
******************************************************************************
**/
#include "stm32f4xx.h"
#include "spi.h"
#include "ft800.h"
#include <stdlib.h>
#include <string.h>
/*
Function: HOST_MEM_READ_STR
ARGS: addr: 24 Bit Command Address
pnt: output buffer for read data
len: length of bytes to be read
Description: Reads len(n) bytes of data, starting at addr into pnt(buffer)
*/
void HOST_MEM_READ_STR(uint32_t addr, uint8_t *pnt, uint8_t len)
{
FT_spi_select();
SPI_send(((addr>>16)&0x3F) ); // Send out bits 23:16 of addr, bits 7:6 of this byte must be 00
SPI_send(((addr>>8)&0xFF)); // Send out bits 15:8 of addr
SPI_send((addr&0xFF)); // Send out bits 7:0 of addr
SPI_send(0); // Send out DUMMY (0) byte
while(len--) // While Len > 0 Read out n bytes
*pnt++ = SPI_send(0);
FT_spi_deselect();
}
/*
Function: HOST_MEM_WR_STR
ARGS: addr: 24 Bit Command Address
pnt: input buffer of data to send
len: length of bytes to be send
Description: Writes len(n) bytes of data from pnt (buffer) to addr
*/
void HOST_MEM_WR_STR(uint32_t addr, uint8_t *pnt, uint8_t len)
{
FT_spi_select();
SPI_send(((addr>>16)&0x3F)|0x80); // Send out 23:16 of addr, bits 7:6 of this byte must be 10
SPI_send(((addr>>8)&0xFF)); // Send out bits 15:8 of addr
SPI_send((addr&0xFF)); // Send out bits 7:0 of addr
while(len--) // While Len > 0 Write *pnt (then increment pnt)
SPI_send(*pnt++);
FT_spi_deselect();
}
/*
Function: HOST_CMD_WRITE
ARGS: CMD: 5 bit Command
Description: Writes Command to FT800
*/
void HOST_CMD_WRITE(uint8_t CMD)
{
FT_spi_select();
SPI_send((uint8_t)(CMD|0x40)); // Send out Command, bits 7:6 must be 01
SPI_send(0x00);
SPI_send(0x00);
FT_spi_deselect();
}
void HOST_CMD_ACTIVE(void)
{
FT_spi_select();
SPI_send(0x00);
SPI_send(0x00);
SPI_send(0x00);
FT_spi_deselect();
}
/*
Function: HOST_MEM_WR8
ARGS: addr: 24 Bit Command Address
data: 8bit Data Byte
Description: Writes 1 byte of data to addr
*/
void HOST_MEM_WR8(uint32_t addr, uint8_t data)
{
FT_spi_select();
SPI_send((addr>>16)|0x80);
SPI_send(((addr>>8)&0xFF));
SPI_send((addr&0xFF));
SPI_send(data);
FT_spi_deselect();
}
/*
Function: HOST_MEM_WR16
ARGS: addr: 24 Bit Command Address
data: 16bit (2 bytes)
Description: Writes 2 bytes of data to addr
*/
void HOST_MEM_WR16(uint32_t addr, uint32_t data)
{
FT_spi_select();
SPI_send((addr>>16)|0x80);
SPI_send(((addr>>8)&0xFF));
SPI_send((addr&0xFF));
/* Little-Endian: Least Significant Byte to: smallest address */
SPI_send( (uint8_t)((data&0xFF)) ); //byte 0
SPI_send( (uint8_t)((data>>8)) ); //byte 1
FT_spi_deselect();
}
/*
Function: HOST_MEM_WR32
ARGS: addr: 24 Bit Command Address
data: 32bit (4 bytes)
Description: Writes 4 bytes of data to addr
*/
void HOST_MEM_WR32(uint32_t addr, uint32_t data)
{
FT_spi_select();
SPI_send((addr>>16)|0x80);
SPI_send(((addr>>8)&0xFF));
SPI_send((addr&0xFF));
SPI_send( (uint8_t)(data&0xFF) );
SPI_send( (uint8_t)((data>>8)&0xFF) );
SPI_send( (uint8_t)((data>>16)&0xFF) );
SPI_send( (uint8_t)((data>>24)&0xFF) );
FT_spi_deselect();
}
/*
Function: HOST_MEM_RD8
ARGS: addr: 24 Bit Command Address
Description: Returns 1 byte of data from addr
*/
uint8_t HOST_MEM_RD8(uint32_t addr)
{
uint8_t data_in;
FT_spi_select();
SPI_send((uint8_t)((addr>>16)&0x3F));
SPI_send((uint8_t)((addr>>8)&0xFF));
SPI_send((uint8_t)(addr));
SPI_send(0);
data_in = SPI_send(0);
FT_spi_deselect();
return data_in;
}
/*
Function: HOST_MEM_RD16
ARGS: addr: 24 Bit Command Address
Description: Returns 2 byte of data from addr in a 32bit variable
*/
uint32_t HOST_MEM_RD16(uint32_t addr)
{
uint8_t data_in = 0;
uint32_t data = 0;
uint8_t i;
FT_spi_select();
SPI_send(((addr>>16)&0x3F));
SPI_send(((addr>>8)&0xFF));
SPI_send((addr&0xFF));
SPI_send(0);
for(i=0;i<2;i++)
{
data_in = SPI_send(0);
data |= ( ((uint32_t)data_in) << (8*i) );
}
FT_spi_deselect();
return data;
}
/*
Function: HOST_MEM_RD32
ARGS: addr: 24 Bit Command Address
Description: Returns 4 byte of data from addr in a 32bit variable
*/
uint32_t HOST_MEM_RD32(uint32_t addr)
{
uint8_t data_in = 0;
uint32_t data = 0;
uint8_t i;
FT_spi_select();
SPI_send(((addr>>16)&0x3F));
SPI_send(((addr>>8)&0xFF));
SPI_send((addr&0xFF));
SPI_send(0);
for(i=0;i<4;i++)
{
data_in = SPI_send(0);
data |= ( ((uint32_t)data_in) << (8*i) );
}
FT_spi_deselect();
return data;
}
/***********************************************************************************/
uint8_t cmd_execute(uint32_t data)
{
uint32_t cmdBufferRd = 0;
uint32_t cmdBufferWr = 0;
cmdBufferRd = HOST_MEM_RD32(REG_CMD_READ);
cmdBufferWr = HOST_MEM_RD32(REG_CMD_WRITE);
uint32_t cmdBufferDiff = cmdBufferWr-cmdBufferRd;
if( (4096-cmdBufferDiff) > 4)
{
HOST_MEM_WR32(RAM_CMD + cmdBufferWr, data);
HOST_MEM_WR32(REG_CMD_WRITE, cmdBufferWr + 4);
return 1;
}
return 0;
}
uint8_t cmd(uint32_t data)
{
uint8_t tryCount = 255;
for(tryCount = 255; tryCount > 0; --tryCount)
{
if(cmd_execute(data)) { return 1; }
}
return 0;
}
uint8_t cmd_ready(void)
{
uint32_t cmdBufferRd = HOST_MEM_RD32(REG_CMD_READ);
uint32_t cmdBufferWr = HOST_MEM_RD32(REG_CMD_WRITE);
return (cmdBufferRd == cmdBufferWr) ? 1 : 0;
}
void cmd_track(int16_t x, int16_t y, int16_t w, int16_t h, int16_t tag)
{
cmd(CMD_TRACK);
cmd( ((uint32_t)y<<16)|(x & 0xffff) );
cmd( ((uint32_t)h<<16)|(w & 0xffff) );
cmd( (uint32_t)tag );
}
void cmd_spinner(int16_t x, int16_t y, uint16_t style, uint16_t scale)
{
cmd(CMD_SPINNER);
cmd( ((uint32_t)y<<16)|(x & 0xffff) );
cmd( ((uint32_t)scale<<16)|style );
}
void cmd_slider(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t options, uint16_t val, uint16_t range)
{
cmd(CMD_SLIDER);
cmd( ((uint32_t)y<<16)|(x & 0xffff) );
cmd( ((uint32_t)h<<16)|(w & 0xffff) );
cmd( ((uint32_t)val<<16)|(options & 0xffff) );
cmd( (uint32_t)range );
}
void cmd_text(int16_t x, int16_t y, int16_t font, uint16_t options, const char* str)
{
/*
i: data pointer
q: str pointer
j: loop counter
*/
uint16_t i,j,q;
const uint16_t length = strlen(str);
if(!length) return ;
uint32_t* data = (uint32_t*) calloc((length/4)+1, sizeof(uint32_t));
q = 0;
for(i=0; i<(length/4); ++i, q=q+4)
{
data[i] = (uint32_t)str[q+3]<<24 | (uint32_t)str[q+2]<<16 | (uint32_t)str[q+1]<<8 | (uint32_t)str[q];
}
for(j=0; j<(length%4); ++j, ++q)
{
data[i] |= (uint32_t)str[q] << (j*8);
}
cmd(CMD_TEXT);
cmd( ((uint32_t)y<<16)|(x & 0xffff) );
cmd( ((uint32_t)options<<16)|(font & 0xffff) );
for(j=0; j<(length/4)+1; ++j)
{
cmd(data[j]);
}
free(data);
}
void cmd_button(int16_t x, int16_t y, int16_t w, int16_t h, int16_t font, uint16_t options, const char* str)
{
/*
i: data pointer
q: str pointer
j: loop counter
*/
uint16_t i,j,q;
const uint16_t length = strlen(str);
if(!length) return ;
uint32_t* data = (uint32_t*) calloc((length/4)+1, sizeof(uint32_t));
q = 0;
for(i=0; i<(length/4); ++i, q=q+4)
{
data[i] = (uint32_t)str[q+3]<<24 | (uint32_t)str[q+2]<<16 | (uint32_t)str[q+1]<<8 | (uint32_t)str[q];
}
for(j=0; j<(length%4); ++j, ++q)
{
data[i] |= (uint32_t)str[q] << (j*8);
}
cmd(CMD_BUTTON);
cmd( ((uint32_t)y<<16)|(x & 0xffff) );
cmd( ((uint32_t)h<<16)|(w & 0xffff) );
cmd( ((uint32_t)options<<16)|(font & 0xffff) );
for(j=0; j<(length/4)+1; ++j)
{
cmd(data[j]);
}
free(data);
}
void cmd_keys(int16_t x, int16_t y, int16_t w, int16_t h, int16_t font, uint16_t options, const char* str)
{
/*
i: data pointer
q: str pointer
j: loop counter
*/
uint16_t i,j,q;
const uint16_t length = strlen(str);
if(!length) return ;
uint32_t* data = (uint32_t*) calloc((length/4)+1, sizeof(uint32_t));
q = 0;
for(i=0; i<(length/4); ++i, q=q+4)
{
data[i] = (uint32_t)str[q+3]<<24 | (uint32_t)str[q+2]<<16 | (uint32_t)str[q+1]<<8 | (uint32_t)str[q];
}
for(j=0; j<(length%4); ++j, ++q)
{
data[i] |= (uint32_t)str[q] << (j*8);
}
cmd(CMD_KEYS);
cmd( ((uint32_t)y<<16)|(x & 0xffff) );
cmd( ((uint32_t)h<<16)|(w & 0xffff) );
cmd( ((uint32_t)options<<16)|(font & 0xffff) );
for(j=0; j<(length/4)+1; ++j)
{
cmd(data[j]);
}
free(data);
}
void cmd_memzero(uint32_t ptr, uint32_t num)
{
cmd(CMD_MEMZERO);
cmd(ptr);
cmd(num);
}
void cmd_fgcolor(uint32_t c)
{
cmd(CMD_FGCOLOR);
cmd(c);
}
void cmd_bgcolor(uint32_t c)
{
cmd(CMD_BGCOLOR);
cmd(c);
}
void cmd_gradcolor(uint32_t c)
{
cmd(CMD_GRADCOLOR);
cmd(c);
}
void cmd_gradient(int16_t x0, int16_t y0, uint32_t rgb0, int16_t x1, int16_t y1, uint32_t rgb1)
{
cmd(CMD_GRADIENT);
cmd( ((uint32_t)y0<<16)|(x0 & 0xffff) );
cmd(rgb0);
cmd( ((uint32_t)y1<<16)|(x1 & 0xffff) );
cmd(rgb1);
}
void cmd_loadidentity(void)
{
cmd(CMD_LOADIDENTITY);
}
void cmd_setmatrix(void)
{
cmd(CMD_SETMATRIX);
}
void cmd_rotate(int32_t angle)
{
cmd(CMD_ROTATE);
cmd(angle);
}
void cmd_translate(int32_t tx, int32_t ty)
{
cmd(CMD_TRANSLATE);
cmd(tx);
cmd(ty);
}