example for the button api

[my-code/arm.git] / betty / betty.c

diff --git a/betty/betty.c b/betty/betty.c
index f3e08ce..3b19542 100644 (file)
--- a/betty/betty.c
+++ b/betty/betty.c
@@ -5,43 +5,12 @@
  *
  */
 
-/*
- * includes
- */
-
-#include "lpc2xxx.h"
-
-/*
- * defines
- */
-
-/* bank 0/2 and boootloader addr/size */
-#define BANK0                  0x80000000
-#define BANK2                  0x82000000
-#define BANK_SIZE              0x00100000
-#define BOOTLOADER             0x7fffe000
-#define BL_SIZE                        0x00002000
-
-/* flash cmd addresses - flash[0-18] <--> arm[1-19]*/
-#define B0F555 (*((volatile unsigned short *)(BANK0|0xaaa)))   // 0x555
-#define B0F2AA (*((volatile unsigned short *)(BANK0|0x554)))   // 0x2aa
-#define B0F    (*((volatile unsigned short *)(BANK0)))
-#define B2F555 (*((volatile unsigned short *)(BANK2|0xaaa)))   // 0x555
-#define B2F2AA (*((volatile unsigned short *)(BANK2|0x554)))   // 0x2aa
-#define B2F    (*((volatile unsigned short *)(BANK2)))
+#include "betty.h"
 
 /*
- * type definitions
+ * functions
  */
 
-typedef unsigned char u8;
-typedef unsigned short u16;
-typedef unsigned int u32;
-
- /*
-  * functions
-  */
-
 void mmap_init(u8 memtype) {
 
        MEMMAP=memtype;
@@ -79,7 +48,10 @@ void pin_select_init() {
 
 void uart0_init(void) {
 
-       PINSEL0=0x05;                   // pin select -> tx, rx
+       /* 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
@@ -166,24 +138,148 @@ u8 uart0_get_byte(void) {
        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);
+}
+
 /*
  * main function
  */
 
 int main() {
 
-       char buf[]="betty - live from the flash at 0x80000000! ;)\r\n";
-       u8 byte;
+       char buf[]="betty - live from flash at 0x80000000! ;)\r\n";
+       t_button button;
 
        pll_init();
        uart0_init();
        ext_mem_bank_init();
        pin_select_init();
+       init_lcd(0);
+       bl_init();
+       button_init(&button);
+       button_set_retries(&button,100);
+
+       pause(0xffffff);
+
+       bl_toggle();
 
        while(1) {
-               byte=uart0_get_byte();
-               uart0_send_string(buf);
-               uart0_send_byte(byte);
+               pause(0x0fffff);
+
+               /* button test! */
+               if(button_get_event(&button)) {
+                       uart0_send_string(buf);
+                       if(button.key[0]==BUTTON_POWER)
+                               bl_toggle();
+               }
        }
 
        return 0;