di0ib/controller
Archived
1
0
Fork 0
Code Releases Activity
This repo is archived. You can view files and clone it, but cannot push or open issues or pull requests.
581b464a13
controller/Scan/STLcd/lcd_scan.c
Jacob Alexander 55d03f448e UARTConnect enumeration working! 
- Fixed cli reflash mode set
- Cleaned up debugging code
- 4 500 000 baud seems to be reliable
- Fixed master selection (assumes slave node unless USB enumerates)
2015-07-18 18:53:21 -07:00

369 lines
11 KiB
C
Raw Blame History

/* Copyright (C) 2015 by Jacob Alexander
*
* This file is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This file is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this file. If not, see <http://www.gnu.org/licenses/>.
*/
// ----- Includes -----
// Compiler Includes
#include <Lib/ScanLib.h>
// Project Includes
#include <cli.h>
#include <led.h>
#include <print.h>
// Local Includes
#include "lcd_scan.h"
// ----- Defines -----
#define LCD_TOTAL_VISIBLE_PAGES 4
#define LCD_PAGE_LEN 128
// ----- Macros -----
// Number of entries in the SPI0 TxFIFO
#define SPI0_TxFIFO_CNT ( ( SPI0_SR & SPI_SR_TXCTR ) >> 12 )
// ----- Structs -----
// ----- Function Declarations -----
// CLI Functions
void cliFunc_lcdCmd( char* args );
void cliFunc_lcdInit( char* args );
void cliFunc_lcdTest( char* args );
// ----- Variables -----
// Full Toggle State
uint8_t cliFullToggleState = 0;
// Normal/Reverse Toggle State
uint8_t cliNormalReverseToggleState = 0;
// Scan Module command dictionary
CLIDict_Entry( lcdCmd, "Send byte via SPI, second argument enables a0. Defaults to control." );
CLIDict_Entry( lcdInit, "Re-initialize the LCD display." );
CLIDict_Entry( lcdTest, "Test out the LCD display." );
CLIDict_Def( lcdCLIDict, "ST LCD Module Commands" ) = {
CLIDict_Item( lcdCmd ),
CLIDict_Item( lcdInit ),
CLIDict_Item( lcdTest ),
{ 0, 0, 0 } // Null entry for dictionary end
};
// ----- Interrupt Functions -----
// ----- Functions -----
inline void SPI_setup()
{
// Enable SPI internal clock
SIM_SCGC6 |= SIM_SCGC6_SPI0;
// Setup MOSI (SOUT) and SCLK (SCK)
PORTC_PCR6 = PORT_PCR_DSE | PORT_PCR_MUX(2);
PORTC_PCR5 = PORT_PCR_DSE | PORT_PCR_MUX(2);
// Setup SS (PCS)
PORTC_PCR4 = PORT_PCR_DSE | PORT_PCR_MUX(2);
// Master Mode, CS0
SPI0_MCR = SPI_MCR_MSTR | SPI_MCR_PCSIS(1);
// DSPI Clock and Transfer Attributes
// Frame Size: 8 bits
// MSB First
// CLK Low by default
SPI0_CTAR0 = SPI_CTAR_FMSZ(7)
| SPI_CTAR_ASC(7)
| SPI_CTAR_DT(7)
| SPI_CTAR_CSSCK(7)
| SPI_CTAR_PBR(0) | SPI_CTAR_BR(7);
}
// Write buffer to SPI FIFO
void SPI_write( uint8_t *buffer, uint8_t len )
{
for ( uint8_t byte = 0; byte < len; byte++ )
{
// Wait for SPI TxFIFO to have 4 or fewer entries
while ( !( SPI0_SR & SPI_SR_TFFF ) )
delayMicroseconds(10);
// Write byte to TxFIFO
// CS0, CTAR0
SPI0_PUSHR = ( buffer[ byte ] & 0xff ) | SPI_PUSHR_PCS(1);
// Indicate transfer has completed
while ( !( SPI0_SR & SPI_SR_TCF ) );
SPI0_SR |= SPI_SR_TCF;
}
}
// Write to a control register
void LCD_writeControlReg( uint8_t byte )
{
// Wait for TxFIFO to be empt
while ( SPI0_TxFIFO_CNT != 0 );
// Set A0 low to enter control register mode
GPIOC_PCOR |= (1<<7);
// Write byte to SPI FIFO
SPI_write( &byte, 1 );
// Wait for TxFIFO to be empty
while ( SPI0_TxFIFO_CNT != 0 );
// Make sure data has transferred
delayMicroseconds(10); // XXX Adjust if SPI speed changes
// Set A0 high to go back to display register mode
GPIOC_PSOR |= (1<<7);
}
// Write to display register
// Pages 0-7 normal display
// Page 8 icon buffer
void LCD_writeDisplayReg( uint8_t page, uint8_t *buffer, uint8_t len )
{
// Set the register page
LCD_writeControlReg( 0xB0 | ( 0x0F & page ) );
// Set display start line
LCD_writeControlReg( 0x40 );
// Reset Column Address
LCD_writeControlReg( 0x10 );
LCD_writeControlReg( 0x00 );
// Write buffer to SPI
SPI_write( buffer, len );
}
inline void LCD_clearPage( uint8_t page )
{
// Set the register page
LCD_writeControlReg( 0xB0 | ( 0x0F & page ) );
// Set display start line
LCD_writeControlReg( 0x40 );
// Reset Column Address
LCD_writeControlReg( 0x10 );
LCD_writeControlReg( 0x00 );
for ( uint8_t page_reg = 0; page_reg < LCD_PAGE_LEN; page_reg++ )
{
uint8_t byte = 0;
// Write buffer to SPI
SPI_write( &byte, 1 );
}
// Wait for TxFIFO to be empty
while ( SPI0_TxFIFO_CNT != 0 );
}
// Clear Display
void LCD_clear()
{
// Setup each page
for ( uint8_t page = 0; page < LCD_TOTAL_VISIBLE_PAGES; page++ )
{
LCD_clearPage( page );
}
// Reset Page, Start Line, and Column Address
// Page
LCD_writeControlReg( 0xB0 );
// Start Line
LCD_writeControlReg( 0x40 );
// Reset Column Address
LCD_writeControlReg( 0x10 );
LCD_writeControlReg( 0x00 );
}
// Intialize display
void LCD_initialize()
{
// ADC Select (Normal)
LCD_writeControlReg( 0xA0 );
// LCD Off
LCD_writeControlReg( 0xAE );
// COM Scan Output Direction
LCD_writeControlReg( 0xC0 );
// LCD Bias (1/6 bias)
LCD_writeControlReg( 0xA2 );
// Power Supply Operating Mode (Internal Only)
LCD_writeControlReg( 0x2F );
// Internal Rb/Ra Ratio
LCD_writeControlReg( 0x26 );
// Reset
LCD_writeControlReg( 0xE2 );
// Electric volume mode set, and value
LCD_writeControlReg( 0x81 );
LCD_writeControlReg( 0x00 );
// LCD On
LCD_writeControlReg( 0xAF );
// Clear Display RAM
LCD_clear();
}
// Setup
inline void LCD_setup()
{
// Register Scan CLI dictionary
CLI_registerDictionary( lcdCLIDict, lcdCLIDictName );
// Initialize SPI
SPI_setup();
// Setup Register Control Signal (A0)
// Start in display register mode (1)
GPIOC_PDDR |= (1<<7);
PORTC_PCR7 = PORT_PCR_SRE | PORT_PCR_DSE | PORT_PCR_MUX(1);
GPIOC_PSOR |= (1<<7);
// Setup LCD Reset pin (RST)
// 0 - Reset, 1 - Normal Operation
// Start in normal mode (1)
GPIOC_PDDR |= (1<<8);
PORTC_PCR8 = PORT_PCR_SRE | PORT_PCR_DSE | PORT_PCR_MUX(1);
GPIOC_PSOR |= (1<<8);
// Run LCD intialization sequence
LCD_initialize();
// Setup Backlight
// TODO Expose default settings
// TODO Setup PWM
GPIOC_PDDR |= (1<<1);
PORTC_PCR1 = PORT_PCR_SRE | PORT_PCR_DSE | PORT_PCR_MUX(1);
GPIOC_PCOR |= (1<<1);
GPIOC_PDDR |= (1<<2);
PORTC_PCR2 = PORT_PCR_SRE | PORT_PCR_DSE | PORT_PCR_MUX(1);
GPIOC_PCOR |= (1<<2);
GPIOC_PDDR |= (1<<3);
PORTC_PCR3 = PORT_PCR_SRE | PORT_PCR_DSE | PORT_PCR_MUX(1);
GPIOC_PCOR |= (1<<3);
}
// LCD State processing loop
inline uint8_t LCD_scan()
{
// NOP - Screen Refresh
//LCD_writeControlReg( 0xE3 );
return 0;
}
// ----- CLI Command Functions -----
void cliFunc_lcdInit( char* args )
{
print( NL ); // No \r\n by default after the command is entered
LCD_initialize();
}
void cliFunc_lcdTest( char* args )
{
print( NL ); // No \r\n by default after the command is entered
//LCD_initialize();
// Test pattern
uint8_t pattern[] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
uint8_t logo[] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x03, 0x03, 0x03, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x03, 0x03, 0x03, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xf8, 0xf8, 0xf8, 0xf8, 0xf8, 0xf8, 0xf8, 0xf8, 0xf8, 0xf8, 0xf8, 0xf8, 0xf8, 0xf8, 0xf8, 0xf8, 0xf8, 0xf8, 0xf8, 0xf8, 0xf8, 0xf8, 0xf8, 0xf8, 0xf8, 0xf8, 0xf8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
};
//uint8_t pattern[] = { 0xFF, 0x00, 0x96, 0xFF, 0x00, 0xFF, 0x00 };
// Write to page D0
//LCD_writeDisplayReg( 0, pattern, sizeof( pattern ) );
for ( uint8_t page = 0; page < LCD_TOTAL_VISIBLE_PAGES; page++ )
{
LCD_writeDisplayReg( page, &logo[page * LCD_PAGE_LEN], LCD_PAGE_LEN );
}
}
void cliFunc_lcdCmd( char* args )
{
char* curArgs;
char* arg1Ptr;
char* arg2Ptr = args;
print( NL ); // No \r\n by default after the command is entered
curArgs = arg2Ptr; // Use the previous 2nd arg pointer to separate the next arg from the list
CLI_argumentIsolation( curArgs, &arg1Ptr, &arg2Ptr );
// No args
if ( *arg1Ptr == '\0' )
return;
// SPI Command
uint8_t cmd = (uint8_t)numToInt( arg1Ptr );
curArgs = arg2Ptr; // Use the previous 2nd arg pointer to separate the next arg from the list
CLI_argumentIsolation( curArgs, &arg1Ptr, &arg2Ptr );
// Single Arg
if ( *arg1Ptr == '\0' )
goto cmd;
// TODO Deal with a0
cmd:
info_msg("Sending - ");
printHex( cmd );
print( NL );
LCD_writeControlReg( cmd );
}
View Git Blame Copy Permalink