From f27b19a531a61aa088d380174cc960b9f2e68237 Mon Sep 17 00:00:00 2001
From: Clyne Sullivan <tullivan99@gmail.com>
Date: Tue, 20 Feb 2018 17:50:47 -0500
Subject: major work, own malloc, making things work

---
 src/lcd.c | 168 --------------------------------------------------------------
 1 file changed, 168 deletions(-)
 delete mode 100644 src/lcd.c

(limited to 'src/lcd.c')

diff --git a/src/lcd.c b/src/lcd.c
deleted file mode 100644
index a2a8ca7..0000000
--- a/src/lcd.c
+++ /dev/null
@@ -1,168 +0,0 @@
-#include <lcd.h>
-#include <clock.h>
-#include <gpio.h>
-#include <string.h>
-
-//#define USE_DELAY
-
-#define LCD_D0 GPIO_PORT(A, 0)
-#define LCD_D1 GPIO_PORT(A, 1)
-#define LCD_D2 GPIO_PORT(A, 4)
-#define LCD_D3 GPIO_PORT(B, 0)
-#define LCD_D4 GPIO_PORT(C, 1)
-#define LCD_D5 GPIO_PORT(C, 0)
-#define LCD_D6 GPIO_PORT(C, 2)
-#define LCD_D7 GPIO_PORT(C, 3)
-#define LCD_E  GPIO_PORT(C, 12)
-#define LCD_RS GPIO_PORT(C, 10)
-
-#define lcd_data() gpio_dout(LCD_RS, 1)
-
-void lcd_pulse(void)
-{
-	gpio_dout(LCD_E, 1);
-#ifdef USE_DELAY
-	delay(1);
-#else
-	for (uint16_t i = 0; i < 10000; i++)
-		asm("");
-#endif // USE_DELAY
-	gpio_dout(LCD_E, 0);
-}
-
-void lcd_byte(uint8_t byte)
-{
-	gpio_dout(LCD_D0, byte & 0x01);
-	gpio_dout(LCD_D1, byte & 0x02);
-	gpio_dout(LCD_D2, byte & 0x04);
-	gpio_dout(LCD_D3, byte & 0x08);
-	gpio_dout(LCD_D4, byte & 0x10);
-	gpio_dout(LCD_D5, byte & 0x20);
-	gpio_dout(LCD_D6, byte & 0x40);
-	gpio_dout(LCD_D7, byte & 0x80);
-}
-
-void lcd_cmd(uint8_t cmd)
-{
-	gpio_dout(LCD_RS, 0);
-	lcd_byte(cmd);
-	lcd_pulse();
-}
-
-void lcd_putchar(int c)
-{
-	lcd_data();
-	lcd_byte((uint8_t)c);
-	lcd_pulse();
-}
-
-static int lcd_index = 0;
-void lcd_puts(const char *s)
-{
-	lcd_cmd(0x06);
-	while (*s) {
-		lcd_putchar(*s++);
-		if (++lcd_index == 0x10) {
-			lcd_cmd(0x80 | 0x40);
-		} else if (lcd_index == 0x20) {
-			lcd_cmd(0x80);
-			lcd_index = 0;
-		}
-	}
-}
-
-extern char *itoa(int n, int base);
-void lcd_puti(int i)
-{
-	lcd_puts(itoa(i, 10));
-}
-
-void lcd_puth(int h)
-{
-	lcd_puts(itoa(h, 16));
-}
-
-void lcd_putb(uint8_t b)
-{
-	lcd_puts(itoa(b, 2));
-}
-
-void lcd_clear(void)
-{
-	lcd_cmd(0x01);
-	delay(2);
-	lcd_index = 0;
-}
-
-void lcd_init(void)
-{
-	gpio_mode(LCD_D0, OUTPUT);
-	gpio_mode(LCD_D1, OUTPUT);
-	gpio_mode(LCD_D2, OUTPUT);
-	gpio_mode(LCD_D3, OUTPUT);
-	gpio_mode(LCD_D4, OUTPUT);
-	gpio_mode(LCD_D5, OUTPUT);
-	gpio_mode(LCD_D6, OUTPUT);
-	gpio_mode(LCD_D7, OUTPUT);
-	gpio_mode(LCD_E,  OUTPUT);
-	gpio_mode(LCD_RS, OUTPUT);
-	gpio_dout(LCD_D0, 0);
-	gpio_dout(LCD_D1, 0);
-	gpio_dout(LCD_D2, 0);
-	gpio_dout(LCD_D3, 0);
-	gpio_dout(LCD_D4, 0);
-	gpio_dout(LCD_D5, 0);
-	gpio_dout(LCD_D6, 0);
-	gpio_dout(LCD_D7, 0);
-	gpio_dout(LCD_E,  0);
-	gpio_dout(LCD_RS, 0);
-
-	lcd_cmd(0x38);
-	lcd_cmd(0x10);
-	lcd_cmd(0x0D);
-	delay(5);
-	lcd_clear();
-}
-
-/**
- * Task code
- */
-
-volatile int bufpos = 0;
-volatile char buf[32];
-volatile uint8_t using = 0;
-
-void lcd_clearbuf(void)
-{
-	bufpos = 0;
-	for (int i = 0; i < 32; i++)
-		buf[i] = 0;
-}
-
-void lcd_put(const char *s)
-{
-	int len = strlen(s);
-	int i;
-
-	using = 1;
-	for (i = 0; i < len; bufpos++, i++) {
-		if (bufpos > 31)
-			bufpos = 0;
-		buf[bufpos] = s[i];
-	}
-	using = 0;
-}
-
-void lcd_handler(void)
-{
-	lcd_init();
-	lcd_clearbuf();
-
-	while (1) {
-		if (!using && buf[0] != '\0') {
-			lcd_puts(buf);
-			lcd_clearbuf();
-		}
-		delay(100);
-	}
-}
-- 
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