bootloader/samsung_yps3.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2009 by Bertrik Sikken
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21
  22 #include <stdlib.h>
  23 #include <stdio.h>
  24 #include <stdarg.h>
  25 #include <string.h>
  26
  27 #include "config.h"
  28
  29 #include "inttypes.h"
  30 #include "cpu.h"
  31 #include "system.h"
  32 #include "lcd.h"
  33 #include "kernel.h"
  34 #include "thread.h"
  35 #include "backlight.h"
  36 #include "backlight-target.h"
  37 #include "button.h"
  38 #include "panic.h"
  39 #include "power.h"
  40 #include "common.h"
  41 #include "usb.h"
  42 #include "bitmaps/rockboxlogo.h"
  43
  44 #include "adc.h"
  45 #include "adc-target.h"
  46
  47 #include "timer.h"
  48
  49 #include "i2c-s5l8700.h"
  50 #include "dma-target.h"
  51 #include "pcm.h"
  52 #include "audiohw.h"
  53 #include "rtc.h"
  54 #include "tuner.h"
  55 #include "si4700.h"
  56 #include "fmradio_i2c.h"
  57
  58 char version[] = APPSVERSION;
  59 #define LONG_DELAY  200000
  60 #define SHORT_DELAY  50000
  61 #define PAUSE_DELAY  50000
  62
  63 static inline void delay(unsigned int duration)
  64 {
  65     volatile unsigned int i;
  66     for(i=0;i<duration;i++);
  67 }
  68
  69 // forward declaration
  70 static int rds_decode(int line, struct si4700_dbg_info *nfo);
  71
  72 static int count = 0;
  73
  74 static void timer_callback(void)
  75 {
  76     count++;
  77 }
  78
  79 void main(void)
  80 {
  81     char mystring[64];
  82     int line, col;
  83     unsigned char read_data[16];
  84     int i;
  85     struct si4700_dbg_info si4700_info;
  86
  87     line = 1;
  88
  89     // enable all peripherals
  90     PWRCON = 0;
  91
  92     // disable all interrupts
  93     INTMSK = 0;
  94
  95     // start with all GPIOs as input
  96     PCON0 = 0;
  97     PCON1 = 0;
  98     PCON2 = 0;
  99     PCON3 = 0;
 100     PCON4 = 0;
 101     PCON5 = 0;
 102     PCON6 = 0;
 103     PCON7 = 0;
 104
 105     system_init();
 106     kernel_init();
 107
 108     asm volatile("msr cpsr_c, #0x13\n\t"); // enable interrupts
 109
 110     lcd_init();
 111
 112     lcd_clear_display();
 113     lcd_bitmap(rockboxlogo, 0, 160, BMPWIDTH_rockboxlogo, BMPHEIGHT_rockboxlogo);
 114     lcd_update();
 115
 116     power_init();
 117
 118     i2c_init();
 119     fmradio_i2c_init();
 120     adc_init();
 121     _backlight_init();
 122
 123     timer_register(1, NULL, 3 * TIMER_FREQ, timer_callback);
 124
 125     // LED outputs
 126     PCON3 = (PCON3 & ~(0x0000FF00)) | 0x00001100;
 127     PDAT3 |= (1 << 2) | (1 << 3);
 128
 129     // FM power
 130     si4700_init();
 131     tuner_power(true);
 132     si4700_set(RADIO_SLEEP, 0);
 133     si4700_set(RADIO_MUTE, 0);
 134     si4700_set(RADIO_FREQUENCY, 100700000);
 135
 136     lcd_puts_scroll(0,0,"+++ this is a very very long line to test scrolling. ---");
 137
 138     while (true)
 139     {
 140         line = 1;
 141
 142 #if 1   /* enable to see GPIOs */
 143         snprintf(mystring, 64, "%02X %02X %02X %02X %02X %02X %02X %02X", PDAT0, PDAT1, PDAT2, PDAT3, PDAT4, PDAT5, PDAT6, PDAT7);
 144         lcd_puts(0, line++, mystring);
 145 #endif
 146
 147 #if 1   /* enable this to see info about the RTC */
 148         rtc_read_datetime(read_data);
 149         snprintf(mystring, 64, "RTC:");
 150         for (i = 0; i < 7; i++) {
 151             snprintf(mystring + 2 * i + 4, 64, "%02X", read_data[i]);
 152         }
 153         lcd_puts(0, line++, mystring);
 154 #endif
 155
 156 #if 0   /* enable this so see info about the codec */
 157         memset(read_data, 0, sizeof(read_data));
 158         for (i = 0; i < 1; i++) {
 159             i2c_read(0x34, i, 2, read_data);
 160             data = read_data[0] << 8 | read_data[1];
 161             snprintf(mystring + 4 * i, 64, "%04X", data);
 162         }
 163         lcd_puts(0, line++, mystring);
 164 #endif
 165
 166 #if 1   /* enable this to see radio debug info */
 167         si4700_dbg_info(&si4700_info);
 168         col = snprintf(mystring, 64, "FM: ");
 169         for (i = 0; i < 16; i++) {
 170             col += snprintf(mystring + col, 64, "%04X ", si4700_info.regs[i]);
 171             if (((i + 1) % 4) == 0) {
 172                 lcd_puts(0, line++, mystring);
 173                 col = 4;
 174             }
 175         }
 176         line = rds_decode(line, &si4700_info);
 177 #endif
 178
 179 #if 1   /* enable this to see ADC info */
 180         snprintf(mystring, 64, "%04X %04X %04X %04X", adc_read(0), adc_read(1), adc_read(2), adc_read(3));
 181         lcd_puts(0, line++, mystring);
 182         snprintf(mystring, 64, "ADC:USB %4d mV BAT %4d mV",
 183             (adc_read(0) * 6000) >> 10, (adc_read(2) * 4650) >> 10);
 184         lcd_puts(0, line++, mystring);
 185 #endif
 186
 187 #if 1   /* enable this so see USB info */
 188         snprintf(mystring, 64, "CLK %08X CLK2 %08X", CLKCON, CLKCON2);
 189         lcd_puts(0, line++, mystring);
 190
 191         snprintf(mystring, 64, "%04X %04X %04X %04X", PHYCTRL, PHYPWR, URSTCON, UCLKCON);
 192         lcd_puts(0, line++, mystring);
 193
 194         snprintf(mystring, 64, "SCR %04X SSR %04X EIR %04X", SCR, SSR, EIR);
 195         lcd_puts(0, line++, mystring);
 196
 197         snprintf(mystring, 64, "FAR %04X FNR %04X EP0 %04X", FAR, FNR, EP0SR);
 198         lcd_puts(0, line++, mystring);
 199 #endif
 200
 201 #if 1   /* enable to see timer/counter info */
 202         snprintf(mystring, 64, "TIMER: %08X", count);
 203         lcd_puts(0, line++, mystring);
 204         snprintf(mystring, 64, "current_tick: %08X", current_tick);
 205         lcd_puts(0, line++, mystring);
 206         snprintf(mystring, 64, "TIMER %04X %04X %04X", TDCON, TDPRE, TDDATA0);
 207         lcd_puts(0, line++, mystring);
 208 #endif
 209
 210 #if 1   /* enable this to control backlight brightness with the hold switch */
 211         if (PDAT4 & (1 << 3)) {
 212             _backlight_set_brightness(10);
 213             PDAT3 &= ~(1 << 4);
 214         }
 215         else {
 216             _backlight_set_brightness(15);
 217             PDAT3 |= (1 << 4);
 218         }
 219 #endif
 220
 221         lcd_update();
 222    }
 223 }
 224
 225
 226 static int rds_decode(int line, struct si4700_dbg_info *nfo)
 227 {
 228     unsigned short rdsdata[4];
 229     unsigned int pi, group, tp, pty, segment, abflag;
 230     static unsigned int af1 = 0, af2 = 0;
 231     static unsigned int day = 0, hour = 0, minute = 0;
 232     static unsigned int abflag_prev = -1;
 233     static char mystring[64];
 234
 235     /* big RDS arrays */
 236     static char ps[9];
 237     static char rt[65];
 238
 239     rdsdata[0] = nfo->regs[12];
 240     rdsdata[1] = nfo->regs[13];
 241     rdsdata[2] = nfo->regs[14];
 242     rdsdata[3] = nfo->regs[15];
 243
 244     pi = rdsdata[0];
 245     group = (rdsdata[1] >> 11) & 0x1F;
 246     tp = (rdsdata[1] >> 10) & 1;
 247     pty = (rdsdata[1] >> 5) & 0x1F;
 248
 249     switch (group) {
 250
 251     case 0: /* group 0A: basic info */
 252         af1 = (rdsdata[2] >> 8) & 0xFF;
 253         af2 = (rdsdata[2] >> 0) & 0xFF;
 254         /* fall through */
 255     case 1: /* group 0B: basic info */
 256         segment = rdsdata[1] & 3;
 257         ps[segment * 2 + 0]  = (rdsdata[3] >> 8) & 0xFF;
 258         ps[segment * 2 + 1]  = (rdsdata[3] >> 0) & 0xFF;
 259         break;
 260
 261     case 2: /* group 1A: programme item */
 262     case 3: /* group 1B: programme item */
 263         day = (rdsdata[3] >> 11) & 0x1F;
 264         hour = (rdsdata[3] >> 6) & 0x1F;
 265         minute = (rdsdata[3] >> 0) & 0x3F;
 266         break;
 267
 268     case 4: /* group 2A: radio text */
 269         segment = rdsdata[1] & 0xF;
 270         abflag = (rdsdata[1] >> 4) & 1;
 271         if (abflag != abflag_prev) {
 272             memset(rt, '.', 64);
 273             abflag_prev = abflag;
 274         }
 275         rt[segment * 4 + 0] = (rdsdata[2] >> 8) & 0xFF;
 276         rt[segment * 4 + 1] = (rdsdata[2] >> 0) & 0xFF;
 277         rt[segment * 4 + 2] = (rdsdata[3] >> 8) & 0xFF;
 278         rt[segment * 4 + 3] = (rdsdata[3] >> 0) & 0xFF;
 279         break;
 280
 281     case 5: /* group 2B: radio text */
 282         segment = rdsdata[1] & 0xF;
 283         abflag = (rdsdata[1] >> 4) & 1;
 284         if (abflag != abflag_prev) {
 285             memset(rt, '.', 64);
 286             abflag_prev = abflag;
 287         }
 288         rt[segment * 2 + 0] = (rdsdata[3] >> 8) & 0xFF;
 289         rt[segment * 2 + 1] = (rdsdata[3] >> 0) & 0xFF;
 290         break;
 291
 292     default:
 293         break;
 294     }
 295
 296     snprintf(mystring, 64, "PI:%04X,TP:%d,PTY:%2d,AF:%02X/%02X", pi, tp, pty, af1, af2);
 297     lcd_puts(0, line++, mystring);
 298     snprintf(mystring, 64, "PS:%s,ITEM:%02d-%02d:%02d", ps, day, hour, minute);
 299     lcd_puts(0, line++, mystring);
 300     snprintf(mystring, 64, "RT:%s", rt);
 301     lcd_puts(0, line++, mystring);
 302
 303     return line;
 304 }
 305
 306