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 #include "wmcodec.h"
  58
  59 char version[] = APPSVERSION;
  60 #define LONG_DELAY  200000
  61 #define SHORT_DELAY  50000
  62 #define PAUSE_DELAY  50000
  63
  64 static inline void delay(unsigned int duration)
  65 {
  66     volatile unsigned int i;
  67     for(i=0;i<duration;i++);
  68 }
  69
  70 // forward declaration
  71 static int rds_decode(int line, struct si4700_dbg_info *nfo);
  72
  73 void main(void)
  74 {
  75     char mystring[64];
  76     int line, col;
  77     unsigned char read_data[16];
  78     int i;
  79     struct si4700_dbg_info si4700_info;
  80 //    unsigned int data;
  81     int brightness = DEFAULT_BRIGHTNESS_SETTING;
  82     unsigned int button;
  83     unsigned int fm_frequency = 100700000;
  84     int audiovol = 0x60;
  85
  86     // enable all peripherals
  87     PWRCON = 0;
  88
  89     // disable all interrupts
  90     INTMSK = 0;
  91
  92     // start with all GPIOs as input
  93     PCON0 = 0;
  94     PCON1 = 0;
  95     PCON2 = 0;
  96     PCON3 = 0;
  97     PCON4 = 0;
  98     PCON5 = 0;
  99     PCON6 = 0;
 100     PCON7 = 0;
 101
 102     system_init();
 103     kernel_init();
 104
 105     asm volatile("msr cpsr_c, #0x13\n\t"); // enable interrupts
 106
 107     lcd_init();
 108
 109     lcd_clear_display();
 110     lcd_bitmap(rockboxlogo, 0, 160, BMPWIDTH_rockboxlogo, BMPHEIGHT_rockboxlogo);
 111     lcd_update();
 112
 113     power_init();
 114
 115     i2c_init();
 116     fmradio_i2c_init();
 117     adc_init();
 118     _backlight_init();
 119     button_init_device();
 120
 121     // FM power
 122     si4700_init();
 123     tuner_power(true);
 124     si4700_set(RADIO_SLEEP, 0);
 125     si4700_set(RADIO_MUTE, 0);
 126     si4700_set(RADIO_FREQUENCY, fm_frequency);
 127
 128     lcd_puts_scroll(0,0,"+++ this is a very very long line to test scrolling. ---");
 129
 130     // WM1800 codec configuration
 131     wmcodec_write(0x0F, 0);     // codec reset
 132     wmcodec_write(0x19, 0xF0);  // pwr mgmt1: VMID = 1, VREF, AINL, AINR
 133     wmcodec_write(0x1A, 0x60);  // pwr mgmt2: LOUT1, ROUT1
 134     wmcodec_write(0x2F, 0x0C);  // pwr mgmt3: LOMIX, ROMIX
 135     wmcodec_write(0x02, audiovol);              // LOUT1VOL
 136     wmcodec_write(0x03, audiovol | (1 << 8));   // ROUT1VOL
 137     wmcodec_write(0x22, (1 << 7) | (7 << 4));   // left out mix (1)
 138     wmcodec_write(0x25, (1 << 7) | (7 << 4));   // right out mix (2)
 139
 140     // enable audio
 141     PCON5 = (PCON5 & ~0x0000000F) | 0x00000001;
 142     PDAT5 |= 1;
 143
 144     while (true)
 145     {
 146         line = 1;
 147
 148 #if 1   /* enable to see GPIOs */
 149         snprintf(mystring, 64, "%02X %02X %02X %02X %02X %02X %02X %02X", PDAT0, PDAT1, PDAT2, PDAT3, PDAT4, PDAT5, PDAT6, PDAT7);
 150         lcd_puts(0, line++, mystring);
 151 #endif
 152
 153 #if 1   /* enable this to see info about the RTC */
 154         rtc_read_datetime(read_data);
 155         snprintf(mystring, 64, "RTC:");
 156         for (i = 0; i < 7; i++) {
 157             snprintf(mystring + 2 * i + 4, 64, "%02X", read_data[i]);
 158         }
 159         lcd_puts(0, line++, mystring);
 160 #endif
 161
 162 #if 1   /* enable this to see radio debug info */
 163         button = button_read_device();
 164         if (button & BUTTON_RIGHT) {
 165             fm_frequency += 100000;
 166             si4700_set(RADIO_FREQUENCY, fm_frequency);
 167         }
 168         if (button & BUTTON_LEFT) {
 169             fm_frequency -= 100000;
 170             si4700_set(RADIO_FREQUENCY, fm_frequency);
 171         }
 172         snprintf(mystring, 64, "FM frequency: %9d", fm_frequency);
 173         lcd_puts(0, line++, mystring);
 174
 175         si4700_dbg_info(&si4700_info);
 176         col = snprintf(mystring, 64, "FM: ");
 177         for (i = 0; i < 16; i++) {
 178             col += snprintf(mystring + col, 64, "%04X ", si4700_info.regs[i]);
 179             if (((i + 1) % 4) == 0) {
 180                 lcd_puts(0, line++, mystring);
 181                 col = 4;
 182             }
 183         }
 184         line = rds_decode(line, &si4700_info);
 185 #endif
 186
 187 #if 1   /* volume control with up/down keys */
 188         button = button_read_device();
 189         if (button & BUTTON_UP) {
 190             if (audiovol < 127) {
 191                 audiovol++;
 192                 wmcodec_write(0x02, audiovol);
 193                 wmcodec_write(0x03, (1 << 8) | audiovol);
 194             }
 195         }
 196         if (button & BUTTON_DOWN) {
 197             if (audiovol > 0) {
 198                 audiovol--;
 199                 wmcodec_write(0x02, audiovol);
 200                 wmcodec_write(0x03, (1 << 8) | audiovol);
 201             }
 202         }
 203         snprintf(mystring, 64, "volume %3d", audiovol);
 204         lcd_puts(0, line++, mystring);
 205 #endif
 206
 207 #if 1   /* enable this to see ADC info */
 208         snprintf(mystring, 64, "%04X %04X %04X %04X", adc_read(0), adc_read(1), adc_read(2), adc_read(3));
 209         lcd_puts(0, line++, mystring);
 210         snprintf(mystring, 64, "ADC:USB %4d mV BAT %4d mV",
 211             (adc_read(0) * 6000) >> 10, (adc_read(2) * 4650) >> 10);
 212         lcd_puts(0, line++, mystring);
 213 #endif
 214
 215 #if 1   /* enable this so see USB info */
 216         snprintf(mystring, 64, "CLK %08X CLK2 %08X", CLKCON, CLKCON2);
 217         lcd_puts(0, line++, mystring);
 218
 219         snprintf(mystring, 64, "%04X %04X %04X %04X", PHYCTRL, PHYPWR, URSTCON, UCLKCON);
 220         lcd_puts(0, line++, mystring);
 221
 222         snprintf(mystring, 64, "SCR %04X SSR %04X EIR %04X", SCR, SSR, EIR);
 223         lcd_puts(0, line++, mystring);
 224
 225         snprintf(mystring, 64, "FAR %04X FNR %04X EP0 %04X", FAR, FNR, EP0SR);
 226         lcd_puts(0, line++, mystring);
 227 #endif
 228
 229 #if 1   /* button lights controlled by keypad */
 230         button = button_read_device();
 231         if (button & (BUTTON_UP | BUTTON_DOWN | BUTTON_LEFT | BUTTON_RIGHT)) {
 232             PDAT3 |= (1 << 3);
 233         }
 234         else {
 235             PDAT3 &= ~(1 << 3);
 236         }
 237         if (button & (BUTTON_BACK | BUTTON_MENU)) {
 238             PDAT3 |= (1 << 2);
 239         }
 240         else {
 241             PDAT3 &= ~(1 << 2);
 242         }
 243         if (button & (BUTTON_SELECT)) {
 244             PDAT4 |= (1 << 2);
 245         }
 246         else {
 247             PDAT4 &= ~(1 << 2);
 248         }
 249 #endif
 250
 251 #if 1   /* backlight brightness controlled by up/down keys */
 252         button = button_read_device();
 253         if (button & BUTTON_MENU) {
 254             if (brightness < MAX_BRIGHTNESS_SETTING) {
 255                 brightness++;
 256                 _backlight_set_brightness(brightness);
 257             }
 258         }
 259         else  if (button & BUTTON_BACK) {
 260             if (brightness > MIN_BRIGHTNESS_SETTING) {
 261                 brightness--;
 262                 _backlight_set_brightness(brightness);
 263             }
 264         }
 265         snprintf(mystring, 64, "bright %3d", brightness);
 266         lcd_puts(0, line++, mystring);
 267 #endif
 268
 269 #if 1   /* power off using power button */
 270         button = button_read_device();
 271         if (button & BUTTON_POWER) {
 272             power_off();
 273         }
 274 #endif
 275
 276 #if 1   /* button info */
 277         snprintf(mystring, 64, "BUTTONS %08X, %s", button_read_device(),
 278                  headphones_inserted() ? "HP" : "hp");
 279         lcd_puts(0, line++, mystring);
 280 #endif
 281
 282         lcd_update();
 283     }
 284 }
 285
 286
 287 static int rds_decode(int line, struct si4700_dbg_info *nfo)
 288 {
 289     unsigned short rdsdata[4];
 290     unsigned int pi, group, tp, pty, segment, abflag;
 291     static unsigned int af1 = 0, af2 = 0;
 292     static unsigned int day = 0, hour = 0, minute = 0;
 293     static unsigned int abflag_prev = -1;
 294     static char mystring[64];
 295
 296     /* big RDS arrays */
 297     static char ps[9];
 298     static char rt[65];
 299
 300     rdsdata[0] = nfo->regs[12];
 301     rdsdata[1] = nfo->regs[13];
 302     rdsdata[2] = nfo->regs[14];
 303     rdsdata[3] = nfo->regs[15];
 304
 305     pi = rdsdata[0];
 306     group = (rdsdata[1] >> 11) & 0x1F;
 307     tp = (rdsdata[1] >> 10) & 1;
 308     pty = (rdsdata[1] >> 5) & 0x1F;
 309
 310     switch (group) {
 311
 312     case 0: /* group 0A: basic info */
 313         af1 = (rdsdata[2] >> 8) & 0xFF;
 314         af2 = (rdsdata[2] >> 0) & 0xFF;
 315         /* fall through */
 316     case 1: /* group 0B: basic info */
 317         segment = rdsdata[1] & 3;
 318         ps[segment * 2 + 0]  = (rdsdata[3] >> 8) & 0xFF;
 319         ps[segment * 2 + 1]  = (rdsdata[3] >> 0) & 0xFF;
 320         break;
 321
 322     case 2: /* group 1A: programme item */
 323     case 3: /* group 1B: programme item */
 324         day = (rdsdata[3] >> 11) & 0x1F;
 325         hour = (rdsdata[3] >> 6) & 0x1F;
 326         minute = (rdsdata[3] >> 0) & 0x3F;
 327         break;
 328
 329     case 4: /* group 2A: radio text */
 330         segment = rdsdata[1] & 0xF;
 331         abflag = (rdsdata[1] >> 4) & 1;
 332         if (abflag != abflag_prev) {
 333             memset(rt, '.', 64);
 334             abflag_prev = abflag;
 335         }
 336         rt[segment * 4 + 0] = (rdsdata[2] >> 8) & 0xFF;
 337         rt[segment * 4 + 1] = (rdsdata[2] >> 0) & 0xFF;
 338         rt[segment * 4 + 2] = (rdsdata[3] >> 8) & 0xFF;
 339         rt[segment * 4 + 3] = (rdsdata[3] >> 0) & 0xFF;
 340         break;
 341
 342     case 5: /* group 2B: radio text */
 343         segment = rdsdata[1] & 0xF;
 344         abflag = (rdsdata[1] >> 4) & 1;
 345         if (abflag != abflag_prev) {
 346             memset(rt, '.', 64);
 347             abflag_prev = abflag;
 348         }
 349         rt[segment * 2 + 0] = (rdsdata[3] >> 8) & 0xFF;
 350         rt[segment * 2 + 1] = (rdsdata[3] >> 0) & 0xFF;
 351         break;
 352
 353     default:
 354         break;
 355     }
 356
 357     snprintf(mystring, 64, "PI:%04X,TP:%d,PTY:%2d,AF:%02X/%02X", pi, tp, pty, af1, af2);
 358     lcd_puts(0, line++, mystring);
 359     snprintf(mystring, 64, "PS:%s,ITEM:%02d-%02d:%02d", ps, day, hour, minute);
 360     lcd_puts(0, line++, mystring);
 361     snprintf(mystring, 64, "RT:%s", rt);
 362     lcd_puts(0, line++, mystring);
 363
 364     return line;
 365 }
 366
 367