X-Git-Url: https://hackdaworld.org/gitweb/?p=my-code%2Farm.git;a=blobdiff_plain;f=betty%2Fbetty.c;fp=betty%2Fbetty.c;h=31bc5a2458772c0b388bda8b27016bd6796eacb9;hp=3b19542792abb64df57cb0bb015519224e3a3543;hb=b4ca71fc214ba3c58cec25661ba1f81cf7b1b871;hpb=d6814c7408b23db8a441f731b44d4b638df24c64

diff --git a/betty/betty.c b/betty/betty.c
index 3b19542..31bc5a2 100644
--- a/betty/betty.c
+++ b/betty/betty.c
@@ -5,249 +5,14 @@
  *
  */
 
+/* includes */
 #include "betty.h"
 
 /*
  * functions
  */
 
-void mmap_init(u8 memtype) {
-
-	MEMMAP=memtype;
-}
-
-void pll_init(void) {
-
-	/* configuration */
-	PLLCFG=0x42;	// multiplier = 3 (for cclk), dividor = 4 (for f_cco)
-	PLLCON=0x03;	// enable and set as clk source for the lpc
-	/* feed sequence */
-	PLLFEED=0xaa;
-	PLLFEED=0x55;
-	/* wait for lock */
-	while(!(PLLSTAT&(1<<10)))
-		continue;
-}
-
-void ext_mem_bank_init(void) {
-
-	BCFG0=0x10000420;       // flash 1
-	BCFG1=0x00000c42;       // lcd
-	BCFG2=0x10000420;       // flash 2
-}
-
-
-void pin_select_init() {
-
-	/*
-	 * a[19:2] -> address lines
-	 */
-
-	PINSEL2=0x0d6041d4;
-}
-
-void uart0_init(void) {
-
-	/* select pins 0.0 and 0.1 as tx and rx */
-	PINSEL0=(PINSEL0&~(0xf))|0x05;		// pin select -> tx, rx
-
-	/* configure uart0 */
-	UART0_FCR=0x07;			// enable fifo
-	UART0_LCR=0x83;			// set dlab + word length
-	UART0_DLL=0x04;			// br: 38400 @ 10/4 mhz
-	UART0_DLM=0x00;
-	UART0_LCR=0x03;			// unset dlab
-}
-
-void uart0_send_string(char *txbuf) {
-
-	int i;
-
-	i=0;
-
-	while(txbuf[i]) {
-		UART0_THR=txbuf[i++];
-		/* flush if tx buffer maximum reached */
-		if(!(i%16))
-			while(!(UART0_LSR&(1<<6)))
-				continue;
-	}
-	
-	/* flush if \n and \r do not fit in the tx buffer */
-	if(i>14)
-		while(!(UART0_LSR&(1<<6)))
-			continue;
-
-	UART0_THR='\n';
-	UART0_THR='\r';
-
-	/* flush uart0 anyways */
-	while(!(UART0_LSR&(1<<6)))
-		continue;
-}
-
-void uart0_send_buf16(u16 *buf,int len) {
-
-	int i;
-
-	i=0;
-
-	for(i=0;i<len/2;i++) {
-		if(!(i%8))
-			while(!(UART0_LSR&(1<<6)))
-				continue;
-		UART0_THR=buf[i]&0xff;
-		UART0_THR=(buf[i]>>8)&0xff;
-	}
-}
-
-void uart0_send_buf32(u32 *buf,int len) {
-
-	int i;
-
-	i=0;
-
-	for(i=0;i<len/4;i++) {
-		if(!(i%4))
-			while(!(UART0_LSR&(1<<6)))
-				continue;
-		UART0_THR=buf[i]&0xff;
-		UART0_THR=(buf[i]>>8)&0xff;
-		UART0_THR=(buf[i]>>16)&0xff;
-		UART0_THR=(buf[i]>>24)&0xff;
-	}
-}
-
-void uart0_send_byte(u8 send) {
-
-	while(!(UART0_LSR&(1<<5)))
-		continue;
-
-	UART0_THR=send;
-}
-
-u8 uart0_get_byte(void) {
-
-	u8 rx;
-
-	while(!(UART0_LSR&(1<<0)))
-		continue;
-
-	rx=UART0_RBR;
-
-	return rx;
-}
-
-void pause(int cnt) {
-
-	while(cnt--)
-		asm volatile ("nop");
-}
-	
-void init_lcd(u8 s) {
-
-	LCD_CMD=0xe1;	// ?
-	LCD_CMD=0xe2;
-	pause(48000);
-	LCD_CMD=0xab;
-	LCD_CMD=0x27;
-	LCD_CMD=0x81;
-	LCD_CMD=0x3f;
-	LCD_CMD=0x65;
-	LCD_CMD=0x60;
-	LCD_CMD=0x1c;
-	LCD_CMD=0x61;
-	LCD_CMD=0x0a;
-	LCD_CMD=0x62;
-	LCD_CMD=0x75;
-	LCD_CMD=0x63;
-	LCD_CMD=0x81;
-	LCD_CMD=0x90;
-	LCD_CMD=0x88;
-	LCD_CMD=0x00;
-	LCD_CMD=0x89;
-	LCD_CMD=0x00;
-	LCD_CMD=0x8a;
-	LCD_CMD=0x33;
-	LCD_CMD=0x8b;
-	LCD_CMD=0x33;
-	LCD_CMD=0x8c;
-	LCD_CMD=0x66;
-	LCD_CMD=0x8d;
-	LCD_CMD=0x66;
-	LCD_CMD=0x8e;
-	LCD_CMD=0x99;
-	LCD_CMD=0x8f;
-	LCD_CMD=0x99;
-	if(s) {
-		LCD_CMD=0xa1;
-		LCD_CMD=0xc0;
-	}
-	else {
-		LCD_CMD=0xa0;
-		LCD_CMD=0xc8;
-	}
-	LCD_CMD=0x2e;
-	pause(48000);
-	LCD_CMD=0x2f;
-	LCD_CMD=0xa4;
-	LCD_CMD=0xa6;
-}
-
-/*
- * spi0 stuff (+ cc1100)
- */
-
-#define SLAVE	0
-#define MASTER	1
-
-void spi1_init(u8 width,u8 type,u8 div) {
-
-	if((width<8)|(width>16))
-		width=8;
-	if(width==16)
-		width=0;
-
-	div&=0xfe;
-	if(div<8)
-		div=8;
-
-	S1SPCR=(1<<2)|(width<<8)|(type<<5);
-	S1SPCCR=div;
-}
-
-#define cc1100_init	spi1_init(8,MASTER,8)
-
-void spi1_send(u16 data) {
-
-	S1SPDR=data;
-
-	while(!(S1SPSR&(1<<7)))
-		continue;
-}
-
-void bl_init(void) {
-
-	IODIR0|=(1<<4);
-}
-
-void bl_toggle(void) {
-
-	if(IOPIN0&(1<<4))
-		IOCLR0=(1<<4);
-	else
-		IOSET0=(1<<4);
-}
-
-void bl_on(void) {
-
-	IOCLR0=(1<<4);
-}
-
-void bl_off(void) {
-
-	IOSET0=(1<<4);
-}
+#define cc1100_init	spi1_init(8,SPI_MASTER,8)
 
 /*
  * main function
@@ -258,17 +23,24 @@ int main() {
 	char buf[]="betty - live from flash at 0x80000000! ;)\r\n";
 	t_button button;
 
+	/* system init */
 	pll_init();
+
+	/* uart init */
 	uart0_init();
-	ext_mem_bank_init();
-	pin_select_init();
-	init_lcd(0);
+
+	/* display init */
 	bl_init();
+
+	/* button init */
 	button_init(&button);
 	button_set_retries(&button,100);
 
-	pause(0xffffff);
+	/*
+	 * start it ...
+	 */
 
+	pause(0xffffff);
 	bl_toggle();
 
 	while(1) {