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osab.c
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osab.c
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/*
* osab.c - Firmware for the Open Source Audio Bible player.
*
* Copyright (C) 2011-2020 Theophilus (http://theaudiobible.org)
*
* Parts of this code are derived from VLSI's audio book and MMC sample code - http://vlsi.fi
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <vs1000.h>
#include <audio.h>
#include <mappertiny.h>
#include <minifat.h>
#include <codec.h>
#include <vsNand.h>
#include <player.h>
#include <usblowlib.h>
#include <dev1000.h>
/* Address of config data in eeprom = 8192 - 32 (i.e. last page) */
#define CONFIG 8160
#define CHAPTER 0 /* Offset of chapter number (file number) */
#define SECONDS 2 /* cs.playTimeSeconds */
#define VOLUME 4 /* Offset of volume setting */
#define BOOKMARK 6 /* Offset of bookmark setting */
/* Address of bookmark data in eeprom = 8192 - 2*32 (i.e. 2'nd last page) */
#define BOOKMARKS 8128
#define BKMK_FIRST 0 /* First Bookmark (4 bytes per bookmark) */
#define BKMK_LAST 28 /* Last Bookmark (n-1)*4 */
#define VOL_MIN 64 /* Minimum volume to save to eeprom - remember
that the greater this number, the lower the
volume */
#define SYSTEMMAINFREQ 6000000
#define BATTERYCHECKFREQ 1
#define BATTERYLOWTIME 90
/* Battery Status LED on GPIO0_13 */
#define BAT_LED_BIT 13
#define BAT_LED (1 << BAT_LED_BIT)
/* Amp Shutdown on GPIO0_14 */
#define AMP_BIT 14
#define AMP (1 << AMP_BIT)
/* UART TX and RX pins on GPIO1_4 and GPIO1_5, respectively */
#define TX_BIT 4
#define RX_BIT 5
#define TX (1 << TX_BIT)
#define RX (1 << RX_BIT)
// #define USE_DEBUG
#ifdef USE_DEBUG
#define DEBUG_LEVEL 1
#endif
/* Removes 4G restriction from USB (SCSI).
Also detects MMC/SD removal while attached to USB.
(62 words) */
#define PATCH_LBAB
/* Note that PATCH_LBAB is still needed - srp */
extern struct FsPhysical *ph;
extern struct FsMapper *map;
extern struct Codec *cod;
extern struct CodecServices cs;
extern u_int16 codecVorbis[];
struct MENUENTRY {
u_int16 parent; /*0 parent index: 0 or 1..65535 */
u_int16 subtree; /*1 subtree index: 0 or 1..65535 */
};
struct MENU {
u_int32 currentSector;
u_int16 buffer[256];
} menu;
/* Global variables */
struct MENUENTRY playingEntry;
u_int32 menuStart; /* menu file must be unfragmented! */
u_int16 offset; /* menu index offset of first file */
u_int16 book1; /* parent index of first book */
u_int16 battery_low = BATTERYLOWTIME; /* Seconds to warn of battery low */
s_int16 bookmark; /* pointer to current bookmark */
u_int16 bkmk_pressed = 0; /* set if bookmark was pressed */
u_int16 goTo; /* offset of seconds to start within file */
u_int16 repeat = 0; /* repeat chapter */
u_int16 prejump_file; /* to save file before jump elsewhere */
u_int16 prejump_playtime; /* to save PlayTime (sec) before jump */
static const u_int32 oggFiles[] = { FAT_MKID('O','G','G'), 0 };
const struct KeyMapping playModeMap[] = {
{KEY_POWER, ke_pauseToggle},
{KEY_LONG_PRESS|KEY_POWER, ke_powerOff},
{(~KEY_8)&KEY_1, ke_volumeDown2},
{(~KEY_8)&KEY_LONG_PRESS|KEY_1, ke_volumeDown2},
{(~KEY_8)&KEY_2, ke_volumeUp2},
{(~KEY_8)&KEY_LONG_PRESS|KEY_2, ke_volumeUp2},
{(~KEY_8)&KEY_1|KEY_2, ke_repeat},
{(~KEY_8)&KEY_3, ke_previous},
{(~KEY_8)&KEY_LONG_PRESS|KEY_3, ke_rewind},
{(~KEY_8)&KEY_4, ke_next},
{(~KEY_8)&KEY_LONG_PRESS|KEY_4, ke_ff_faster},
{(~KEY_8)&KEY_LONG_PRESS|KEY_1|KEY_2, KEY_LONG_ONESHOT|(u_int16)ke_earSpeakerToggle},
{(~KEY_8)&KEY_LONG_PRESS|KEY_RELEASED, ke_ff_off},
{(~KEY_8)&KEY_5, ke_OT_NT},
{(~KEY_8)&KEY_LONG_PRESS|KEY_5, KEY_LONG_ONESHOT|(u_int16)ke_bookmark},
{(~KEY_8)&KEY_6, ke_bookPrev},
{(~KEY_8)&KEY_LONG_PRESS|KEY_6, KEY_LONG_ONESHOT|(u_int16)ke_markPrev},
{(~KEY_8)&KEY_7, ke_bookNext},
{(~KEY_8)&KEY_LONG_PRESS|KEY_7, KEY_LONG_ONESHOT|(u_int16)ke_markNext},
{(~KEY_8)&KEY_LONG_PRESS|KEY_5|KEY_6, KEY_LONG_ONESHOT|(u_int16)ke_resetBookmarks},
{(~KEY_8)&KEY_1|KEY_3, KEY_LONG_ONESHOT|(u_int16)ke_back},
{(~KEY_8)&KEY_2|KEY_3, KEY_LONG_ONESHOT|(u_int16)ke_back},
{0, ke_null}
};
#define SPI_EEPROM_COMMAND_WRITE_ENABLE 0x06
#define SPI_EEPROM_COMMAND_WRITE_DISABLE 0x04
#define SPI_EEPROM_COMMAND_READ_STATUS_REGISTER 0x05
#define SPI_EEPROM_COMMAND_WRITE_STATUS_REGISTER 0x01
#define SPI_EEPROM_COMMAND_READ 0x03
#define SPI_EEPROM_COMMAND_WRITE 0x02
//macro to set SPI to MASTER; 8BIT; FSYNC Idle => xCS high
#define SPI_MASTER_8BIT_CSHI PERIP(SPI0_CONFIG) = \
SPI_CF_MASTER | SPI_CF_DLEN8 | SPI_CF_FSIDLE1
//macro to set SPI to MASTER; 8BIT; FSYNC not Idle => xCS low
#define SPI_MASTER_8BIT_CSLO PERIP(SPI0_CONFIG) = \
SPI_CF_MASTER | SPI_CF_DLEN8 | SPI_CF_FSIDLE0
//macro to set SPI to MASTER; 16BIT; FSYNC not Idle => xCS low
#define SPI_MASTER_16BIT_CSLO PERIP(SPI0_CONFIG) = \
SPI_CF_MASTER | SPI_CF_DLEN16 | SPI_CF_FSIDLE0
void SetInterruptVector_Timer1(void);
/* Emit a short beep for user feedback */
void beep(void) {
__y s_int16 *p = audioBuffer;
register u_int16 i;
for (i = 100; i > 0; i--) {
if (p >= audioBuffer + DEFAULT_AUDIO_BUFFER_SAMPLES) {
p -= DEFAULT_AUDIO_BUFFER_SAMPLES;
}
*p += 8000;
p += 27;
}
}
/// Wait for not_busy (status[0] = 0) and return status
void SpiWaitStatus(void) {
u_int16 status;
SPI_MASTER_8BIT_CSHI;
SpiDelay(0);
SPI_MASTER_8BIT_CSLO;
SpiSendReceive(SPI_EEPROM_COMMAND_READ_STATUS_REGISTER);
while ((status = SpiSendReceive(0xff)) & 0x01){
#ifdef USE_DEBUG
puthex(status); puts("=eeprom status");
#endif
SpiDelay(0);
}
SPI_MASTER_8BIT_CSHI;
}
void SpiWrite(u_int16 addr, u_int16 data) {
SPI_MASTER_8BIT_CSHI;
SpiDelay(0);
SPI_MASTER_8BIT_CSLO;
SpiSendReceive(SPI_EEPROM_COMMAND_WRITE_ENABLE);
SPI_MASTER_8BIT_CSHI;
SpiDelay(0);
SPI_MASTER_8BIT_CSLO;
SpiSendReceive(SPI_EEPROM_COMMAND_WRITE);
SPI_MASTER_16BIT_CSLO;
SpiSendReceive(addr);
SpiSendReceive(data);
SPI_MASTER_8BIT_CSHI;
SpiWaitStatus();
SPI_MASTER_8BIT_CSHI;
SpiDelay(0);
SPI_MASTER_8BIT_CSLO;
SpiSendReceive(SPI_EEPROM_COMMAND_WRITE_DISABLE);
SPI_MASTER_8BIT_CSHI;
}
u_int16 SpiRead(u_int16 addr) {
register u_int16 data;
SpiWaitStatus();
SPI_MASTER_8BIT_CSLO;
SpiSendReceive(SPI_EEPROM_COMMAND_READ);
SPI_MASTER_16BIT_CSLO;
SpiSendReceive(addr);
data = SpiSendReceive(0);
SPI_MASTER_8BIT_CSHI;
return data;
}
int MenuInit(void) {
static const u_int32 mnuFiles[] = {FAT_MKID('M', 'N', 'U'), 0 };
minifatInfo.supportedSuffixes = &mnuFiles[0];
/* MENU.MNU */
#ifdef USE_DEBUG
puts("Entered MenuInit()");
#endif
if (OpenFileBaseName("\pMENU ") != 0xffffU) {
#ifdef USE_DEBUG
puts("Opened menu.mnu");
#endif
menuStart = minifatFragments[0].start & 0x7fffffffUL;
#ifdef USE_DEBUG
puthex(menuStart); puts("=menuStart");
#endif
return 0;
}
#ifdef USE_DEBUG
puts("Failed to open menu.mnu");
#endif
return -1;
}
const void *MenuGetEntry(register __c0 u_int16 entry) {
register u_int32 wordPos = (u_int32)entry * 2; /* 4 bytes per entry */
u_int32 sector = (wordPos >> 8) + menuStart;
#if 0
puthex(entry);
puts("=entry");
puthex(wordPos);
puts("=pos");
puthex(sector);
puts("=sector");
#endif
if (sector != menu.currentSector) {
menu.currentSector = sector;
MapperReadDiskSector(menu.buffer, sector);
}
return (void *)(menu.buffer + (wordPos & 255));
}
#ifdef PATCH_LBAB
#include <scsi.h>
extern struct SCSIVARS {
SCSIStageEnum State;
SCSIStatusEnum Status;
u_int16 *DataOutBuffer;
u_int16 DataOutSize;
u_int16 DataBuffer[32];
u_int16 *DataInBuffer;
u_int16 DataInSize;
unsigned int BlocksLeftToSend;
unsigned int BlocksLeftToReceive;
u_int32 CurrentDiskSector;
u_int32 mapperNextFlushed;
u_int16 cswPacket[7]; /*< command reply (Command Status Wrapper) data */
u_int32 DataTransferLength; /*< what is expected by CBW */
s_int32 Residue; /*< difference of what is actually transmitted by SCSI */
s_int16 DataDirection;
} SCSI;
#endif/*PATCH_LBAB*/
enum mmcState {
mmcNA = 0,
mmcOk = 1,
};
struct {
enum mmcState state;
s_int16 errors;
s_int16 hcShift;
u_int32 blocks;
} mmc;
#ifdef USE_DEBUG
static char hex[] = "0123456789ABCDEF";
void puthex(u_int16 d) {
char mem[5];
mem[0] = hex[(d>>12)&15];
mem[1] = hex[(d>>8)&15];
mem[2] = hex[(d>>4)&15];
mem[3] = hex[(d>>0)&15];
mem[4] = '\0';
fputs(mem, stdout);
}
#endif
s_int16 InitializeMmc(s_int16 tries) {
register u_int16 i;
mmc.state = mmcNA;
mmc.blocks = 0;
mmc.errors = 0;
#if DEBUG_LEVEL > 1
puthex(clockX);
puts(" clockX");
#endif
tryagain:
IdleHook();
mmc.hcShift = 9;
if (tries-- <= 0) {
return ++mmc.errors;
}
for (i = 512; i > 0; i--) {
SpiSendClocks();
}
/* MMC Init, command 0x40 should return 0x01 if all is ok. */
i = MmcCommand(MMC_GO_IDLE_STATE/*CMD0*/|0x40, 0);
if (i != 1) {
#if DEBUG_LEVEL > 1
puthex(i);
puts(" Init");
#endif
BusyWait10();
goto tryagain;//continue; /* No valid idle response */
}
//cmd = MMC_SEND_OP_COND|0x40;
/*CMD8 is mandatory before ACMD41
for hosts compliant to phys. spec. 2.00 */
i = MmcCommand(MMC_SEND_IF_COND/*CMD8*/|0x40, 0x00000122/*2.7-3.6V*/); /*note: 0x22 for the right CRC!*/
#if DEBUG_LEVEL > 2
puthex(i);
puts("=IF_COND");
#endif
{
register u_int16 parametr;
if (i == 1) parametr = 0x4010;
else if (i == 5) parametr = 0;
else goto tryagain;//return ++mmc.errors;
#if DEBUG_LEVEL > 1
puthex(SpiSendReceiveMmc(-1, 16));
puthex(SpiSendReceiveMmc(-1, 16));
puts("=R7");
i = MmcCommand(MMC_READ_OCR/*CMD58*/|0x40, 0);
puthex(i);
puts("=READ_OCR");
puthex(SpiSendReceiveMmc(-1, 16));
puthex(SpiSendReceiveMmc(-1, 16));
puts("=R3");
#else
MmcCommand(MMC_READ_OCR/*CMD58*/|0x40, 0);
i = SpiSendReceiveMmc(-1, 16);
SpiSendReceiveMmc(-1, 16);
if ((i & 0x00FF) != 0x00FF) goto tryagain;//return ++mmc.errors; /*Check support voltage*/
#endif
while (1) {
MmcCommand(0x40|55/*CMD55*/, 0);
#if DEBUG_LEVEL > 2
puthex(i);
puts("=CMD55");
#endif
i = MmcCommand(41|0x40/*MMC_SEND_OP_COND|0x40*/, (u_int32)parametr << 16);
#if DEBUG_LEVEL > 1
puthex(i);
puts("=ACMD41");
#endif
if (i == 0) {
#if DEBUG_LEVEL > 1
puts("got 0");
#endif
break;
}
if (i != 1) {
#if DEBUG_LEVEL > 1
puthex(i);
puts(" Timeout 2");
#endif
goto tryagain; /* Not able to power up mmc */
}
BusyWait10();
}
if (parametr) {
#if DEBUG_LEVEL > 1
i = MmcCommand(MMC_READ_OCR/*CMD58*/|0x40, 0);
puthex(i);
puts("=READ_OCR");
if (i == 0) {
i = SpiSendReceiveMmc(-1, 16);
if (i & 0x4000) {
/* OCR[30]:CCS - card capacity select */
/* HighCapacity! */
puts("=HC");
mmc.hcShift = 0;
}
puthex(i);
puthex(SpiSendReceiveMmc(-1, 16));
puts("=R3");
}
#else
if (MmcCommand(MMC_READ_OCR/*CMD58*/|0x40, 0) == 0) {
if (SpiSendReceiveMmc(-1, 16) & 0x4000) mmc.hcShift = 0;
SpiSendReceiveMmc(-1, 16);
}
#endif
}
if (MmcCommand(MMC_SEND_CSD/*CMD9*/|0x40, 0) == 0) {
register s_int16 *p = (s_int16 *)minifatBuffer;
i = 640;
while (SpiSendReceiveMmc(0xff00, 8) == 0xff) {
if (i-- == 0) {
#if DEBUG_LEVEL > 1
puts("Timeout 3");
#endif
goto tryagain;
}
}
for (i = 9; i > 0; i--) {
*p++ = SpiSendReceiveMmc(-1, 16);
#if DEBUG_LEVEL > 1
puthex(p[-1]);
#endif
}
if ((minifatBuffer[0] & 0xf000) == 0x4000) {
/* v2.0 in 512kB resolution */
mmc.blocks = (((((u_int32)minifatBuffer[3] << 16) | minifatBuffer[4]) & 0x3fffff) + 1) << 10;
} else {
/* v1.0 */
register u_int16 c_mult = ((minifatBuffer[4] & 3) << 1) | ((u_int16)minifatBuffer[5] >> 15);
register u_int32 c_size = (((minifatBuffer[3] & 0x03ff) << 2 ) | ((minifatBuffer[4] >> 14) & 3)) + 1;
mmc.blocks = c_size << (2 + c_mult + (minifatBuffer[2] & 15) - 9);
}
#if DEBUG_LEVEL > 1
puts("=CSD");
puthex(mmc.blocks>>16);
puthex(mmc.blocks);
puts("=mmcBlocks");
#endif
}
#if DEBUG_LEVEL > 1
if (MmcCommand(MMC_SEND_CID/*CMD10*/|0x40, 0) == 0) {
i = 3200;
while (SpiSendReceiveMmc(0xff00, 8) == 0xff) {
if (i-- == 0) goto tryagain;
}
for (i = 9; i > 0; i--) puthex(SpiSendReceiveMmc(-1, 16));
puts("=CID");
}
#endif
/* Set Block Size of 512 bytes -- default for at least HC */
/* Needed by MaxNova S043618ATA 2J310700 MV016Q-MMC */
/* Must check return value! (MicroSD restart!) */
#if DEBUG_LEVEL > 1
i = MmcCommand(MMC_SET_BLOCKLEN|0x40, 512);
if (i != 0) {
puthex(i);
puts(" SetBlockLen failed");
goto tryagain;
}
#else
if (MmcCommand(MMC_SET_BLOCKLEN|0x40, 512) != 0) {
goto tryagain;
}
#endif
/* All OK return */
//mmc.errors = 0;
mmc.state = mmcOk;
map->blocks = mmc.blocks;
#ifdef USE_DEBUG
puts("Completed MMC Init OK.");
#endif
return 0;//mmc.errors;
}
}
auto u_int16 MyReadDiskSector(register __i0 u_int16 *buffer, register __reg_a u_int32 sector) {
register s_int16 i;
register u_int16 t = 65535;
if (mmc.state == mmcNA || mmc.errors) {
cs.cancel = 1;
return 5;
}
#if 0 && defined(USE_DEBUG)
puthex(sector>>16);
puthex(sector);
puts("=ReadDiskSector");
#endif
MmcCommand(MMC_READ_SINGLE_BLOCK|0x40, sector << mmc.hcShift);
do {
i = SpiSendReceiveMmc(0xff00, 8);
} while (i == 0xff && --t != 0);
if (i != 0xfe) {
memset(buffer, 0, 256);
if (i > 15 /*unknown error code*/) {
mmc.errors++;
#if 0
putch('R');
#endif
} else {
/* data retrieval failed:
D4-D7 = 0
D3 = out of range
D2 = Card ECC Failed
D1 = CC Error
D0 = Error
*/
}
SpiSendClocks();
return 1;
}
for (i = 512/2; i > 0; i--) {
*buffer++ = SpiSendReceiveMmc(0xffff, 16);
}
SpiSendReceiveMmc(0xffff, 16); /* discard crc */
/* generate some extra SPI clock edges to finish up the command */
SpiSendClocks();
SpiSendClocks();
/* We force a call of user interface after each block even if we
have no idle CPU. This prevents problems with key response in
fast play mode. */
IdleHook();
return 0; /* All OK return */
}
u_int16 FsMapMmcRead(struct FsMapper *map, u_int32 firstBlock, u_int16 blocks, u_int16 *data);
const struct FsMapper mmcMapper = {
0x010c, /*version*/
256, /*blocksize in words*/
0, /*blocks -- read from CSD*/
0, /*cacheBlocks*/
NULL, //FsMapMmcCreate,
FsMapFlNullOk, //RamMapperDelete,
FsMapMmcRead,
NULL, //FsMapMmcWrite,
NULL, //FsMapFlNullOk, //RamMapperFree,
FsMapFlNullOk, //RamMapperFlush,
NULL /* no physical */
};
u_int16 FsMapMmcRead(struct FsMapper *map, u_int32 firstBlock, u_int16 blocks, u_int16 *data) {
register u_int16 bl = 0;
#ifndef PATCH_LBAB /*if not patched already*/
firstBlock &= 0x00ffffff; /*remove sign extension: 4G -> 8BG limit*/
#endif
while (bl < blocks) {
if (MyReadDiskSector(data, firstBlock))
break; /* probably MMC detached */
data += 256;
firstBlock++;
bl++;
}
return bl;
}
#if defined(PATCH_TEST_UNIT_READY) && defined(PATCH_LBAB)
void ScsiTestUnitReady(void) {
/* Poll MMC present by giving it a command. */
if (mmc.state == mmcOk && mmc.errors == 0 && MmcCommand(MMC_SET_BLOCKLEN|0x40, 512) != 0) {
mmc.errors++;
}
if (mmc.state == mmcNA || mmc.errors) {
SCSI.Status = SCSI_REQUEST_ERROR; /* report error at least once! */
}
}
#endif
void MyKeyEventHandler(enum keyEvent event) { /*140 words*/
register const struct MENUENTRY *m;
register u_int16 subtree, parent, i;
/* separate the small-numbered cases */
switch (event) {
case ke_bookPrev:
if (playingEntry.parent > book1) {
m = (struct MENUENTRY *)MenuGetEntry(playingEntry.parent-1);
} else {
m = (struct MENUENTRY *)MenuGetEntry(offset-1);
}
subtree = m->subtree;
player.nextFile = subtree - offset;
cs.cancel = 1;
repeat = 0;
prejump_file = player.currentFile;
prejump_playtime = (u_int16)cs.playTimeSeconds;
beep();
break;
case ke_bookNext:
if (playingEntry.parent < offset-1) {
m = (struct MENUENTRY *)MenuGetEntry(playingEntry.parent+1);
subtree = m->subtree;
player.nextFile = subtree - offset;
} else {
player.nextFile = 0;
}
cs.cancel = 1;
repeat = 0;
prejump_file = player.currentFile;
prejump_playtime = (u_int16)cs.playTimeSeconds;
beep();
break;
case ke_OT_NT:
m = (struct MENUENTRY *)MenuGetEntry(playingEntry.parent);
parent = m->parent;
if (++parent >= book1) {
parent = 0;
}
m = (struct MENUENTRY *)MenuGetEntry(parent);
subtree = m->subtree;
while (subtree) {
parent = subtree;
m = (struct MENUENTRY *)MenuGetEntry(subtree);
subtree = m->subtree;
}
player.nextFile = parent - offset;
cs.cancel = 1;
repeat = 0;
prejump_file = player.currentFile;
prejump_playtime = (u_int16)cs.playTimeSeconds;
beep();
break;
case ke_previous:
if (player.currentFile==0) player.nextFile = player.totalFiles - 1;
else player.nextFile = player.currentFile - 1;
cs.cancel = 1;
repeat = 0;
prejump_file = player.currentFile;
prejump_playtime = (u_int16)cs.playTimeSeconds;
beep();
break;
case ke_next:
if (player.currentFile == player.totalFiles - 1) player.nextFile = 0;
else player.nextFile = player.currentFile + 1;
cs.cancel = 1;
repeat = 0;
prejump_file = player.currentFile;
prejump_playtime = (u_int16)cs.playTimeSeconds;
beep();
break;
case ke_pauseToggle:
player.pauseOn ^= 1;
PERIP(GPIO0_ODATA) ^= AMP;
break;
case ke_bookmark:
beep();
SpiWrite(BOOKMARKS + bookmark, player.currentFile);
SpiWrite(BOOKMARKS + bookmark + 2, (u_int16)cs.playTimeSeconds);
bookmark = (bookmark + 4) & 0x1f;
break;
case ke_markPrev:
bookmark -= 8;
case ke_markNext:
beep();
for (i = 20; i > 0; i-- ) BusyWait10();
PERIP(GPIO0_ODATA) &= ~AMP; /* amp off */
bkmk_pressed = 1;
bookmark = (bookmark + 4) & 0x1f;
player.nextFile = SpiRead(BOOKMARKS + bookmark);
goTo = SpiRead(BOOKMARKS + bookmark + 2);
cs.cancel = 1;
repeat = 0;
prejump_file = player.currentFile;
prejump_playtime = (u_int16)cs.playTimeSeconds;
break;
case ke_repeat:
player.nextFile = player.currentFile;
repeat = 1;
beep();
break;
case ke_resetBookmarks:
beep();
for (i = 0; i < 32; i += 2) {
SpiWrite(BOOKMARKS + i, 0);
}
break;
case ke_back:
beep();
for (i = 20; i > 0; i-- ) BusyWait10();
PERIP(GPIO0_ODATA) &= ~AMP; /* amp off */
bkmk_pressed = 1;
player.nextFile = prejump_file;
goTo = prejump_playtime;
cs.cancel = 1;
repeat = 0;
break;
default:
RealKeyEventHandler(event);
}
}
void MyUserInterfaceIdleHook(void) { /*94 words*/
if (uiTrigger) {
uiTrigger = 0;
KeyScan9();
}
}
auto void MyPowerOff(void) {
register u_int16 i;
SpiWrite(CONFIG + CHAPTER, player.currentFile); /* save current chapter */
SpiWrite(CONFIG + SECONDS, (u_int16)cs.playTimeSeconds); /* and time */
if (player.volume > VOL_MIN) player.volume = VOL_MIN;
SpiWrite(CONFIG + VOLUME, player.volume); /* save current volume */
SpiWrite(CONFIG + BOOKMARK, bookmark); /* save current bookmark */
PERIP(INT_ENABLEL) &= ~INTF_TIM1; /*Disable interrupt TIM1*/
i = PERIP(GPIO0_ODATA);
i &= ~AMP; // amp off
i &= ~BAT_LED; //LED off
PERIP(GPIO0_ODATA) = i;
for (i = 50; i > 0; i--) BusyWait10();
RealPowerOff();
}
void InterruptHandler_Timer1(void) {
register u_int16 i;
PERIP(INT_ENABLEL) &= ~INTF_TIM1; /*Disable interrupt TIM1*/
if (PERIP(SCI_STATUS) & SCISTF_REGU_POWERLOW) {
#ifdef USE_DEBUG
puts("=LOW");
#endif
i = battery_low - 1;
if (!i) PowerOff(); /* check the 60seconds */
if (i < 60) {
beep();
PERIP(GPIO0_ODATA) ^= BAT_LED;
}
} else {
PERIP(GPIO0_ODATA) |= BAT_LED; // switch it on
i = BATTERYLOWTIME;
#if DEBUG_LEVEL > 1
puts("=GOOD");
#endif
}
battery_low = i;
PERIP(INT_ENABLEL) |= INTF_TIM1;
}
void Initialize(void) {
/* Configure GPIO for Amp Shutdown, Battery Status LED*/
PERIP(GPIO0_MODE) &= ~(AMP | BAT_LED);
PERIP(GPIO0_DDR) |= AMP | BAT_LED;
PERIP(GPIO0_ODATA) &= ~AMP; // amp off
PERIP(GPIO0_ODATA) |= BAT_LED; // LED on
#ifndef USE_DEBUG
/* Make UART pins output low to make invisible on USB bus */
PERIP(GPIO1_MODE) &= ~(TX | RX);
PERIP(GPIO1_DDR) |= TX | RX;
PERIP(GPIO1_ODATA) &= ~(TX | RX);
#endif
SPI_MASTER_8BIT_CSHI;
PERIP(SPI0_FSYNC) = 0;
PERIP(SPI0_CLKCONFIG) = SPI_CC_CLKDIV * (12-1);
PERIP(GPIO1_MODE) |= 0x0f; /* enable SPI pins */
PERIP(INT_ENABLEL) &= ~INTF_RX; //Disable UART RX interrupt
/* Adjust voltages */
//voltages[voltIoPlayer] = 27; /*3.3V for microSD card */
voltages[voltAnaPlayer] = 16;/*3.0V for high-current MMC/SD!*/
PowerSetVoltages(&voltages[voltCorePlayer]);
BusyWait10(); /*make the regulator stable */
#ifdef USE_DEBUG
puthex(PERIP(SCI_STATUS));
puts("=SCI_STATUS");
#endif
{
register u_int16 i = 0; /*VHIGH >= 3.3V*/
while (PERIP(SCI_STATUS) & SCISTF_REGU_POWERLOW) {
i++;
BusyWait10();
if (i > 10) PowerOff();
}
}
currentKeyMap = playModeMap;
SetHookFunction((u_int16)KeyEventHandler, MyKeyEventHandler);
SetHookFunction((u_int16)IdleHook, MyUserInterfaceIdleHook);
SetHookFunction((u_int16)PowerOff, MyPowerOff);
{
register u_int16 low = SYSTEMMAINFREQ / BATTERYCHECKFREQ;
register u_int16 high = SYSTEMMAINFREQ / BATTERYCHECKFREQ >> 16;
PERIP(TIMER_T1L) = low; //default main clock is 6MHz See Page74
PERIP(TIMER_T1H) = high; //change to 1Hz
PERIP(TIMER_T1CNTL) = low; //Current Value Low
PERIP(TIMER_T1CNTH) = high; //Current Value High
}
SetInterruptVector_Timer1();
PERIP(TIMER_ENABLE) |= (1 << 1); //Enable timer 1
#if 1 /*Perform some extra inits because we are started from SPI boot. */
InitAudio(); /* goto 3.0x..4.0x */
PERIP(INT_ENABLEL) = INTF_RX | INTF_TIM0 | INTF_TIM1;
PERIP(INT_ENABLEH) = INTF_DAC;
#endif
SetHookFunction((u_int16)OpenFile, FatFastOpenFile); /*Faster!*/
#ifdef PATCH_LBAB
/* Increases the allowed disk size from 4GB to 2TB.
Reference to PatchMSCPacketFromPC will link the function from
libdev1000.a. */
SetHookFunction((u_int16)MSCPacketFromPC, PatchMSCPacketFromPC);
#endif/*PATCH_LBAB*/
/* Replicate main loop */
player.volume = -24;
player.volumeOffset = -24;
keyOld = KEY_POWER;
keyOldTime = -32767; /* ignores the first release of KEY_POWER */
bookmark = BKMK_FIRST;
PERIP(GPIO0_MODE) &= ~(MMC_MISO|MMC_CLK|MMC_MOSI|MMC_XCS);
PERIP(GPIO0_DDR) = (PERIP(GPIO0_DDR) & ~(MMC_MISO)) | (MMC_CLK|MMC_MOSI|MMC_XCS);
PERIP(GPIO0_ODATA) = (PERIP(GPIO0_ODATA) & ~(MMC_CLK|MMC_MOSI)) | (MMC_XCS | GPIO0_CS1); /* NFCE high */
#if DEBUG_LEVEL > 1
puts("Configured MMC pins\n");
#endif
memset(&mmc, 0, sizeof(mmc));
map = &mmcMapper;
PlayerVolume();
}
void main(void) {
register const struct MENUENTRY *m;
#ifdef USE_DEBUG
puts("Entered main()");
#endif
Initialize();
{ // Check button lock and power off if locked
register u_int16 i;
PERIP(GPIO0_MODE) &= ~KEY_8;
PERIP(GPIO0_DDR) &= ~KEY_8;
for (i=0;i<100;i++) PERIP(GPIO0_IDATA);
if ((PERIP(GPIO0_IDATA) & KEY_8) == 0) RealPowerOff();
}
while (1) {
/* If MMC is not available, try to reinitialize it. */
if (mmc.state == mmcNA || mmc.errors) {
#ifdef USE_DEBUG
puts("InitializeMmc(50)");
#endif
InitializeMmc(50);
}
#ifdef USE_DEBUG
puts("Try to init FAT...");
#endif
/* Try to init FAT. */
if (InitFileSystem() == 0) {
#ifdef USE_DEBUG
puts("FAT init ok.");
#endif
#ifdef USE_DEBUG
puts("Start MenuInit()...");
#endif
if (MenuInit()) {
/* no menu found */
#ifdef USE_DEBUG
puts("No menu found.");
#endif
while (1) {;} // No menu found
}
#ifdef USE_DEBUG
puts("Done MenuInit()...");
#endif
/* Restore the default suffixes. */
minifatInfo.supportedSuffixes = oggFiles;
player.totalFiles = OpenFile(0xffffU);
if (player.totalFiles == 0) {
/* If no files found, output some samples.
This causes the idle hook to be called, which in turn
scans the keys and you can turn off the unit if you like.
*/
#ifdef USE_DEBUG
puts("no .ogg files");
#endif
goto noFSnorFiles;
}
/* Determine offset, i.e. index of first file */
m = (struct MENUENTRY *)MenuGetEntry(0);
book1 = m->subtree;
m = (struct MENUENTRY *)MenuGetEntry(book1);
offset = m->subtree;
{
register u_int16 subtree, offsetlastbook = offset - 1;
m = (struct MENUENTRY *)MenuGetEntry(offsetlastbook);
subtree = m->subtree;
do {
m = (struct MENUENTRY *)MenuGetEntry(subtree);
subtree++;
} while (m->parent == offsetlastbook);
if (player.totalFiles > (subtree - offset)) player.totalFiles = subtree - offset;
}
player.pauseOn = 0;
player.nextStep = 1;
#ifdef USE_DEBUG
puts("About to read eeprom...");
#endif
player.nextFile = SpiRead(CONFIG + CHAPTER); /* read saved chapter */
goTo = SpiRead(CONFIG + SECONDS); /* read saved playTimeSeconds */
player.volume = SpiRead(CONFIG + VOLUME); /* read saved volume */
if (player.volume > VOL_MIN) player.volume = VOL_MIN;
bookmark = SpiRead(CONFIG + BOOKMARK) & 0x1C;// read saved bookmark
#ifdef USE_DEBUG
puthex(player.nextFile); puts("=SpiRead");
#endif
while (1) {
PERIP(GPIO0_ODATA) |= AMP; /* amp on */
player.currentFile = player.nextFile;
if ((player.currentFile < 0) || (player.currentFile >= player.totalFiles)) {
#ifdef USE_DEBUG
puthex(player.currentFile); puts("=player.currentFile (< 0)");
#endif
player.currentFile = 0;
}
player.nextFile = player.currentFile + 1 - repeat;
/* If the file can be opened, start playing it. */
if (OpenFile(player.currentFile) < 0) {
player.ffCount = 0;
cs.cancel = 0;
cs.goTo = goTo; /* start playing from saved place */
cs.fileSize = cs.fileLeft = minifatInfo.fileSize;
cs.fastForward = 1; /* reset play speed to normal */
#ifdef USE_DEBUG
puthex(player.currentFile); puts("=player.currentFile");
#endif
m = (struct MENUENTRY *)MenuGetEntry(player.currentFile + offset);
memcpy(&playingEntry, m, sizeof(playingEntry));
{
register s_int16 oldStep = player.nextStep;
register s_int16 ret;
ret = PlayCurrentFile();
/* If unsupported, keep skipping */
if (ret == ceFormatNotFound) player.nextFile = player.currentFile + player.nextStep;
/* If a supported file found, restore play direction */
if (ret == ceOk && oldStep == -1) player.nextStep = 1;
}
}
/* Leaves play loop when MMC changed */
if (mmc.state == mmcNA || mmc.errors) break;
if (bkmk_pressed) {
bkmk_pressed = 0;
} else {
goTo = -1;
}
}
} else {
/* If not a valid FAT (perhaps because MMC/SD is not inserted),
just send some samples to audio buffer and try again. */
noFSnorFiles:
#ifdef USE_DEBUG
puts("FAT init failed.");
#endif
LoadCheck(&cs, 32); /* decrease or increase clock */