Closing in on lcd!

1 files changed, 0 insertions, 381 deletions

diff --git a/3rd-party/LCDHD44780.c b/3rd-party/LCDHD44780.c
deleted file mode 100644
index 8a01a20..0000000
--- a/3rd-party/LCDHD44780.c
+++ /dev/null
@@ -1,381 +0,0 @@
-/*##############################################################*/
-/* Author: Marcus Nasarek                                       */
-/* File:   LCDH44780.c                                          */
-/* Compile with:                                                */
-/*      gcc -Wall -c LCDHD44780.c -o LCDHD44780.o               */
-/* License:                                                     */
-/*                                                              */
-/*  This program 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 program 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 program; if not,             */
-/*  see <http://www.gnu.org/licenses/>.                         */
-/*                                                              */
-/*##############################################################*/
-
-#include "LCDHD44780.h"
-
-void init_gpio(void)
-{
-	// Set all pins to output
-	bcm2835_gpio_fsel(LCD_RS, BCM2835_GPIO_FSEL_OUTP);
-	bcm2835_gpio_fsel(LCD_D4, BCM2835_GPIO_FSEL_OUTP);
-	bcm2835_gpio_fsel(LCD_D5, BCM2835_GPIO_FSEL_OUTP);
-	bcm2835_gpio_fsel(LCD_D6, BCM2835_GPIO_FSEL_OUTP);
-	bcm2835_gpio_fsel(LCD_D7, BCM2835_GPIO_FSEL_OUTP);
-	bcm2835_gpio_fsel(LCD_E,  BCM2835_GPIO_FSEL_OUTP);
-
-	bcm2835_delayMicroseconds(C_DELAY);
-
-	// Set all pins to LOW
-	bcm2835_gpio_clr(LCD_RS);
-	bcm2835_gpio_clr(LCD_D4);
-	bcm2835_gpio_clr(LCD_D5);
-	bcm2835_gpio_clr(LCD_D5);
-	bcm2835_gpio_clr(LCD_D7);
-	bcm2835_gpio_clr(LCD_E);
-
-}
-
-void pulse_e(void)
-{
-	// Toogle ENABLE pin in us
-	// bcm2835_gpio_fsel(LCD_E, BCM2835_GPIO_FSEL_OUTP);
-	bcm2835_delayMicroseconds(E_DELAY);
-	bcm2835_gpio_set(LCD_E);
-	bcm2835_delayMicroseconds(E_DATA_PULSE);
-	bcm2835_gpio_clr(LCD_E);
-	(LCD_DATA) ? bcm2835_delayMicroseconds(E_DATA_PULSE) :bcm2835_delayMicroseconds(E_CMD_PULSE);
-}
-
-void init_lcd(void)
-{
-	init_gpio();
-
-	/*
-	The busy flag (BF) is kept in the busy state
-	until the initialization ends (BF = 1). The
-	busy state lasts for 10 ms after VCC rises to 4.5 V
-	*/
-
-	/*
-	--- symbols:
-	I/D = 1: Increment
-	I/D = 0: Decrement
-	S = 1: Accompanies display shift
-	S/C = 1: Display shift
-	S/C = 0: Cursor move
-	R/L = 1: Shift to the right
-	R/L = 0: Shift to the left
-	DL = 1: 8 bits, DL = 0: 4 bits
-	N = 1: 2 lines, N = 0: 1 line
-	F = 1: 5
-	×
-	10 dots, F = 0: 5
-	×
-	8 dots
-	BF = 1: Internally operating
-	BF = 0: Instructions acceptable
-	*/
-
-	/*
-	--- Display init after turn on:
-	1. Display clear
-	2. Function set:
-			DL = 1; 8-bit interface data
-			N = 0; 1-line display
-			F = 0; 5×8 dot character font
-	3. Display on/off control:
-			D = 0; Display off
-			C = 0; Cursor off
-			B = 0; Blinking off
-	4. Entry mode set:
-			I/D = 1; Increment by 1
-			S = 0; No shift
-	*/
-
-	// begin of "warming up"
-	// see fig 24 on page 46 of datasheet
-
-	// Function set -
-	// Sets interface data length
-	// (DL), number of display lines
-	// (N), and character font (F).
-	// RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
-	// 0  0   0   0   1   DL   N   F   -   -
-	// DL = 0 --> 4 bit data length (1 = 8 bit)
-	// N = 1 --> 2 line display (0 = 1 line)
-	// F = 0 --> 5x8 dot character font
-	// 0x33 =
-	// 0  0   0   0   1   1    0   0   1   1
-	// --> ?
-	write_to_lcd(0x33, LCD_CMD);
-	bcm2835_delayMicroseconds(100);
-
-	// Function set -
-	// Sets interface data length
-	// (DL), number of display lines
-	// (N), and character font (F).
-	// RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
-	// 0  0   0   0   1   DL   N   F   -   -
-	// DL = 0 --> 4 bit data length (1 = 8 bit)
-	// N = 1 --> 2 line display (0 = 1 line)
-	// F = 0 --> 5x8 dot character font
-	// 0x32 =
-	// 0  0   0   0   1   1    0   0   1   0
-	// --> ?
-	write_to_lcd(0x32, LCD_CMD);
-	bcm2835_delayMicroseconds(R_EXEC_TIME);
-
-	// end of "warming up"
-
-	lcd_function_set(TWO_LINES);
-
-	lcd_control(DISPLAY_ON);
-
-	lcd_entry_mode(ADDR_INCREMENT);
-
-	clear_lcd();
-
-}
-
-void lcd_function_set(uint8_t control_flags)
-{
-	// Function set -
-	// Sets interface data length
-	// (DL), number of display lines
-	// (N), and character font (F).
-	// RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
-	// 0  0   0   0   1   DL   N   F   -   -
-	// DL = 0 --> 4 bit data length (1 = 8 bit)
-	// N = 1 --> 2 line display (0 = 1 line)
-	// F = 0 --> 5x8 dot character font
-	// F = 1 --> 5x10 dot character font
-	// 0x28 =
-	// 0  0   0   0   1   0    1  0   0   0
-	write_to_lcd(LCD_FUNCTION_SET | control_flags, LCD_CMD);
-	bcm2835_delayMicroseconds(R_EXEC_TIME);
-}
-
-void lcd_control(uint8_t control_flags)
-{
-	// Display on/off control -
-	// Sets entire display (D) on/off,
-	// cursor on/off (C), and
-	// blinking of cursor position
-	// character (B).
-	// RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
-	// 0  0   0   0   0   0   1   D   C   B
-	// D = 1 --> display on
-	// C = 0 --> cursor off
-	// B = 0 --> blinking off
-	write_to_lcd(LCD_CONTROL | control_flags, LCD_CMD);
-	bcm2835_delayMicroseconds(R_EXEC_TIME);
-}
-
-void lcd_shift_control(uint8_t control_flags)
-{
-	// Cursor or display shift -
-	// Moves the cursor and shifts
-	// display without chaning
-	// DDRAM contents.
-	// Execution time 37us
-	// RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
-	// 0  0   0   0   0   1   S/C R/L -   -
-	// S/C = cursor/display shift
-	// S/C = 0 --> cursor shift
-	// R/L = shift direction
-	// R/L = 1 --> shift to right
-	write_to_lcd(CURSOR_DISPLAY_SHIFT | control_flags, LCD_CMD);
-	bcm2835_delayMicroseconds(R_EXEC_TIME);
-}
-
-void lcd_entry_mode(uint8_t control_flags)
-{
-	// Entry mode set -
-	// Sets cursor move direction
-	// and specifies display shift.
-	// These operations are
-	// performed during data write
-	// and read.
-	// Execution time 37us
-	// RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
-	// 0  0   0   0   0   0   0   1   I/D S
-	// I/D = increment/decrement address pointer
-	// I/D = 1 --> increment
-	// S = 0 --> no shift
-	write_to_lcd(LCD_ENTRY_MODE | control_flags, LCD_CMD);
-	bcm2835_delayMicroseconds(R_EXEC_TIME);
-}
-
-void clear_lcd(void) {
-	// Clear display -
-	// Clears entire display and
-	// sets DDRAM address 0 in
-	// address counter:
-	// RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
-	// 0  0   0   0   0   0   0   0   0   1
-	write_to_lcd(0x01, LCD_CMD);
-	bcm2835_delayMicroseconds(R_EXEC_TIME);
-}
-
-void return_home(void)
-{
-	// Return home -
-	// Sets DDRAM address to 0
-	// in address counter. Also
-	// returns display from being
-	// shifted to original position
-	// DDRAM contents remains unchanged
-	// RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
-	// 0  0   0   0   0   0   0   0   1   -
-	write_to_lcd(0x02, LCD_CMD);
-	bcm2835_delayMicroseconds(R_EXEC_TIME);
-}
-
-
-void display_off(void)
-{
-	lcd_control(DISPLAY_OFF);
-}
-
-void show_cursor(bool on)
-{
-	uint8_t cursor_flag;
-	cursor_flag = ( on ? CURSOR_ON : 0x00);
-	lcd_control(DISPLAY_ON | cursor_flag);
-}
-
-void cursor_blinking(bool on)
-{
-	uint8_t blinking_flag;
-	blinking_flag = ( on ? BLINKING_ON : 0x00);
-	lcd_control(DISPLAY_ON | blinking_flag);
-}
-
-void set_cursor(uint8_t addr)
-{
-	// Set DDRAM address
-	// RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
-	// 0  0   1   ADD ADD ADD ADD ADD ADD ADD
-	write_to_lcd(addr, LCD_CMD);
-	bcm2835_delayMicroseconds(R_EXEC_TIME);
-	// fprintf(stdout,"cursor on addr: 0x%0x\n", addr);
-}
-
-void shift_cursor(uint8_t direction)
-{
-	lcd_shift_control(CURSOR_SHIFT | direction);
-}
-
-void shift_display(uint8_t direction)
-{
-	lcd_shift_control(DISPLAY_SHIFT | direction);
-}
-
-void write_to_lcd(uint8_t byte, uint8_t mode)
-{
-	switch (mode) {
-		case LCD_CMD:
-			bcm2835_gpio_clr(LCD_RS);
-			// fprintf(stdout, "Set RS to cmd mode\n");
-			break;
-		case LCD_DATA:
-			bcm2835_gpio_set(LCD_RS);
-			// fprintf(stdout, "Set RS to data mode for '%c'\n", byte);
-			break;
-		default:
-			// fprintf(stderr, "mode for setting GPIO pin unknown: %i\n", mode);
-			exit(EXIT_FAILURE);
-	}
-
-	// write high bits
-	bcm2835_gpio_clr(LCD_D4);
-	bcm2835_gpio_clr(LCD_D5);
-	bcm2835_gpio_clr(LCD_D6);
-	bcm2835_gpio_clr(LCD_D7);
-
-	if ((byte & 0x10) == 0x10) {
-		bcm2835_gpio_set(LCD_D4);
-	}
-	if ((byte & 0x20) == 0x20) {
-		bcm2835_gpio_set(LCD_D5);
-	}
-	if ((byte & 0x40) == 0x40) {
-		bcm2835_gpio_set(LCD_D6);
-	}
-	if ((byte & 0x80) == 0x80) {
-		bcm2835_gpio_set(LCD_D7);
-	}
-
-	// Toogle ENABLE pin in us
-	pulse_e();
-
-	// write low bits
-	bcm2835_gpio_clr(LCD_D4);
-	bcm2835_gpio_clr(LCD_D5);
-	bcm2835_gpio_clr(LCD_D6);
-	bcm2835_gpio_clr(LCD_D7);
-
-	if ((byte & 0x01) == 0x01) {
-		bcm2835_gpio_set(LCD_D4);
-	}
-	if ((byte & 0x02) == 0x02) {
-		bcm2835_gpio_set(LCD_D5);
-	}
-	if ((byte & 0x04) == 0x04) {
-		bcm2835_gpio_set(LCD_D6);
-	}
-	if ((byte & 0x08) == 0x08) {
-		bcm2835_gpio_set(LCD_D7);
-	}
-
-	pulse_e();
-
-}
-
-void write_string(char *str)
-{
-	uint16_t i;
-	uint8_t len = 0;
-
-	len = (strlen(str) > LCD_WIDTH ? LCD_WIDTH : strlen(str));
-
-	for (i=0; i<len;i++) {
-		write_to_lcd(str[i], LCD_DATA);
-	}
-}
-
-void gpio_reset(void)
-{
-	// bcm2835_gpio_fsel(LCD_RS, BCM2835_GPIO_PUD_OFF);
-	// bcm2835_gpio_fsel(LCD_E, BCM2835_GPIO_PUD_OFF);
-	// bcm2835_gpio_fsel(LCD_D4, BCM2835_GPIO_PUD_OFF);
-	// bcm2835_gpio_fsel(LCD_D5, BCM2835_GPIO_PUD_OFF);
-	// bcm2835_gpio_fsel(LCD_D6, BCM2835_GPIO_PUD_OFF);
-	// bcm2835_gpio_fsel(LCD_D7, BCM2835_GPIO_PUD_OFF);
-
-	// bcm2835_gpio_fsel(LCD_RS, BCM2835_GPIO_FSEL_INPT);
-	// bcm2835_gpio_fsel(LCD_E, BCM2835_GPIO_FSEL_INPT);
-	// bcm2835_gpio_fsel(LCD_D4, BCM2835_GPIO_FSEL_INPT);
-	// bcm2835_gpio_fsel(LCD_D5, BCM2835_GPIO_FSEL_INPT);
-	// bcm2835_gpio_fsel(LCD_D6, BCM2835_GPIO_FSEL_INPT);
-	// bcm2835_gpio_fsel(LCD_D7, BCM2835_GPIO_FSEL_INPT);
-
-	bcm2835_gpio_clr(LCD_RS);
-	bcm2835_gpio_clr(LCD_E);
-	bcm2835_gpio_clr(LCD_D4);
-	bcm2835_gpio_clr(LCD_D5);
-	bcm2835_gpio_clr(LCD_D6);
-	bcm2835_gpio_clr(LCD_D7);
-}