Procyon AVRlib: sta013.c Source File

00001 /*! \file sta013.c \brief STMicroelectronics STA013 MP3 player driver. */
00002 //*****************************************************************************
00003 //
00004 // File Name    : 'sta013.c'
00005 // Title        : STMicroelectronics STA013 MP3 player driver
00006 // Author       : Pascal Stang
00007 // Created      : 10/22/2000
00008 // Revised      : 7/11/2003
00009 // Version      : 0.3
00010 // Target MCU   : ATmega103 (should work for Atmel AVR Series)
00011 // Editor Tabs  : 4
00012 //
00013 // NOTE: This code is currently below version 1.0, and therefore is considered
00014 // to be lacking in some functionality or documentation, or may not be fully
00015 // tested.  Nonetheless, you can expect most functions to work.
00016 //
00017 // This code is distributed under the GNU Public License
00018 //      which can be found at http://www.gnu.org/licenses/gpl.txt
00019 //
00020 //*****************************************************************************
00021 
00022 #include <avr/io.h>
00023 #include <avr/pgmspace.h>
00024 
00025 #include "global.h"
00026 #include "i2csw.h"
00027 #include "timer.h"
00028 //#include "procyon.h"
00029 
00030 #include "sta013.h"
00031 
00032 // bitrate and sampling frequency mappings
00033 //static int __attribute__ ((progmem)) MP3_Bitrates[] =
00034 //  { 0,  8, 16, 24, 32, 40, 48, 56,  64,  80,  96, 112, 128, 144, 160, 0,
00035 //     0, 32, 40, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320, 0};
00036 static unsigned char __attribute__ ((progmem)) MP3_Bitrates[] =
00037     { 0,  4,  8, 12, 16, 20, 24, 28, 32, 40, 48, 56,  64,  72,  80, 0,
00038       0, 16, 20, 24, 28, 32, 40, 48, 56, 64, 80, 96, 112, 128, 160, 0};
00039 
00040 static unsigned char __attribute__ ((progmem)) MP3_SamplingFrequencies[] =
00041    { 11, 12,  8,  0,      // MPEG 2.5 rates
00042       0,  0,  0,  0,      // reserved rates
00043      22, 24, 16,  0,      // MPEG 2   rates
00044      44, 48, 32,  0       // MPEG 1   rates
00045    };
00046 
00047 // STA013 firmware update and configuration data
00048 static unsigned char __attribute__ ((progmem)) STA013_UpdateData[] = 
00049    {
00050 0x3a, 0x01, 0x2a, 0x04, 0x28, 0x00, 0x29, 0x00, 0x20, 0x00, 
00051 0x21, 0x00, 0x22, 0x00, 0x23, 0x00, 0x24, 0x00, 0x25, 0x00, 
00052 0x26, 0x00, 0x27, 0x00, 0x28, 0x01, 0x28, 0x02, 0x21, 0x8f, 
00053 0x28, 0x03, 0x21, 0x00, 0x28, 0x04, 0x28, 0x05, 0x28, 0x06, 
00054 0x28, 0x07, 0x28, 0x08, 0x28, 0x09, 0x28, 0x0a, 0x28, 0x0b, 
00055 0x28, 0x0c, 0x20, 0x80, 0x21, 0x90, 0x28, 0x0d, 0x20, 0x00, 
00056 0x21, 0x00, 0x28, 0x0e, 0x20, 0x81, 0x21, 0x91, 0x28, 0x0f, 
00057 0x20, 0x00, 0x21, 0x92, 0x28, 0x10, 0x21, 0x00, 0x28, 0x11, 
00058 0x21, 0x93, 0x28, 0x12, 0x21, 0x00, 0x28, 0x13, 0x28, 0x14, 
00059 0x28, 0x15, 0x20, 0x82, 0x28, 0x16, 0x20, 0x00, 0x28, 0x17, 
00060 0x28, 0x18, 0x28, 0x19, 0x21, 0x94, 0x28, 0x1a, 0x21, 0x95, 
00061 0x28, 0x1b, 0x21, 0x96, 0x28, 0x1c, 0x21, 0x00, 0x28, 0x1d, 
00062 0x20, 0x83, 0x28, 0x1e, 0x20, 0x00, 0x28, 0x1f, 0x21, 0x97, 
00063 0x28, 0x20, 0x21, 0x00, 0x28, 0x21, 0x28, 0x22, 0x28, 0x23, 
00064 0x28, 0x24, 0x28, 0x25, 0x28, 0x26, 0x28, 0x27, 0x28, 0x28, 
00065 0x28, 0x29, 0x28, 0x2a, 0x20, 0x84, 0x28, 0x2b, 0x20, 0x00, 
00066 0x28, 0x2c, 0x28, 0x2d, 0x28, 0x2e, 0x28, 0x2f, 0x28, 0x30, 
00067 0x28, 0x31, 0x28, 0x32, 0x20, 0x85, 0x28, 0x33, 0x20, 0x00, 
00068 0x28, 0x34, 0x28, 0x35, 0x28, 0x36, 0x28, 0x37, 0x21, 0x98, 
00069 0x28, 0x38, 0x21, 0x00, 0x28, 0x39, 0x28, 0x3a, 0x28, 0x3b, 
00070 0x28, 0x3c, 0x28, 0x3d, 0x28, 0x3e, 0x28, 0x3f, 0x28, 0x40, 
00071 0x28, 0x41, 0x28, 0x42, 0x28, 0x43, 0x28, 0x44, 0x28, 0x45, 
00072 0x28, 0x46, 0x28, 0x47, 0x28, 0x48, 0x28, 0x49, 0x28, 0x4a, 
00073 0x28, 0x4b, 0x28, 0x4c, 0x28, 0x4d, 0x28, 0x4e, 0x28, 0x4f, 
00074 0x28, 0x50, 0x28, 0x51, 0x28, 0x52, 0x28, 0x53, 0x28, 0x54, 
00075 0x28, 0x55, 0x28, 0x56, 0x28, 0x57, 0x28, 0x58, 0x28, 0x59, 
00076 0x28, 0x5a, 0x28, 0x5b, 0x28, 0x5c, 0x28, 0x5d, 0x28, 0x5e, 
00077 0x28, 0x5f, 0x28, 0x60, 0x28, 0x61, 0x28, 0x62, 0x21, 0x99, 
00078 0x28, 0x63, 0x21, 0x00, 0x28, 0x64, 0x28, 0x65, 0x28, 0x66, 
00079 0x28, 0x67, 0x28, 0x68, 0x28, 0x69, 0x28, 0x6a, 0x28, 0x6b, 
00080 0x28, 0x6c, 0x28, 0x6d, 0x28, 0x6e, 0x28, 0x6f, 0x28, 0x70, 
00081 0x28, 0x71, 0x28, 0x72, 0x28, 0x73, 0x28, 0x74, 0x28, 0x75, 
00082 0x28, 0x76, 0x28, 0x77, 0x28, 0x78, 0x28, 0x79, 0x28, 0x7a, 
00083 0x28, 0x7b, 0x28, 0x7c, 0x28, 0x7d, 0x28, 0x7e, 0x28, 0x7f, 
00084 0x28, 0x80, 0x28, 0x81, 0x28, 0x82, 0x28, 0x83, 0x28, 0x84, 
00085 0x28, 0x85, 0x28, 0x86, 0x28, 0x87, 0x28, 0x88, 0x28, 0x89, 
00086 0x28, 0x8a, 0x28, 0x8b, 0x28, 0x8c, 0x28, 0x8d, 0x28, 0x8e, 
00087 0x28, 0x8f, 0x28, 0x90, 0x28, 0x91, 0x20, 0x86, 0x28, 0x92, 
00088 0x20, 0x87, 0x28, 0x93, 0x20, 0x00, 0x28, 0x94, 0x28, 0x95, 
00089 0x28, 0x96, 0x28, 0x97, 0x28, 0x98, 0x28, 0x99, 0x28, 0x9a, 
00090 0x28, 0x9b, 0x28, 0x9c, 0x28, 0x9d, 0x28, 0x9e, 0x28, 0x9f, 
00091 0x21, 0x9a, 0x28, 0xa0, 0x21, 0x00, 0x28, 0xa1, 0x28, 0xa2, 
00092 0x28, 0xa3, 0x28, 0xa4, 0x28, 0xa5, 0x28, 0xa6, 0x28, 0xa7, 
00093 0x28, 0xa8, 0x28, 0xa9, 0x28, 0xaa, 0x28, 0xab, 0x28, 0xac, 
00094 0x28, 0xad, 0x28, 0xae, 0x28, 0xaf, 0x28, 0xb0, 0x28, 0xb1, 
00095 0x28, 0xb2, 0x28, 0xb3, 0x28, 0xb4, 0x28, 0xb5, 0x28, 0xb6, 
00096 0x28, 0xb7, 0x28, 0xb8, 0x28, 0xb9, 0x20, 0x88, 0x28, 0xba, 
00097 0x20, 0x00, 0x28, 0xbb, 0x20, 0x89, 0x28, 0xbc, 0x20, 0x00, 
00098 0x28, 0xbd, 0x28, 0xbe, 0x28, 0xbf, 0x28, 0xc0, 0x28, 0xc1, 
00099 0x28, 0xc2, 0x28, 0xc3, 0x21, 0x9b, 0x28, 0xc4, 0x21, 0x00, 
00100 0x28, 0xc5, 0x28, 0xc6, 0x28, 0xc7, 0x28, 0xc8, 0x28, 0xc9, 
00101 0x28, 0xca, 0x28, 0xcb, 0x28, 0xcc, 0x28, 0xcd, 0x28, 0xce, 
00102 0x28, 0xcf, 0x28, 0xd0, 0x28, 0xd1, 0x28, 0xd2, 0x28, 0xd3, 
00103 0x28, 0xd4, 0x28, 0xd5, 0x28, 0xd6, 0x28, 0xd7, 0x28, 0xd8, 
00104 0x28, 0xd9, 0x28, 0xda, 0x28, 0xdb, 0x28, 0xdc, 0x28, 0xdd, 
00105 0x28, 0xde, 0x28, 0xdf, 0x28, 0xe0, 0x28, 0xe1, 0x20, 0x8a, 
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00107 0x28, 0xe5, 0x28, 0xe6, 0x28, 0xe7, 0x28, 0xe8, 0x28, 0xe9, 
00108 0x28, 0xea, 0x28, 0xeb, 0x28, 0xec, 0x28, 0xed, 0x28, 0xee, 
00109 0x28, 0xef, 0x28, 0xf0, 0x28, 0xf1, 0x28, 0xf2, 0x28, 0xf3, 
00110 0x28, 0xf4, 0x28, 0xf5, 0x28, 0xf6, 0x28, 0xf7, 0x28, 0xf8, 
00111 0x20, 0x8c, 0x28, 0xf9, 0x20, 0x00, 0x21, 0x9c, 0x28, 0xfa, 
00112 0x21, 0x9d, 0x28, 0xfb, 0x20, 0x8d, 0x21, 0x9e, 0x28, 0xfc, 
00113 0x20, 0x8e, 0x21, 0x9f, 0x28, 0xfd, 0x20, 0x00, 0x21, 0x00, 
00114 0x28, 0xfe, 0x28, 0xff, 0x2a, 0x01, 0x28, 0x00, 0x22, 0x01, 
00115 0x23, 0x95, 0x24, 0x89, 0x25, 0x07, 0x26, 0xa4, 0x27, 0x07, 
00116 0x28, 0x01, 0x21, 0xc7, 0x22, 0x00, 0x23, 0x80, 0x26, 0xc4, 
00117 0x27, 0x0c, 0x28, 0x02, 0x20, 0x09, 0x21, 0x1c, 0x22, 0x04, 
00118 0x26, 0xaa, 0x27, 0x0a, 0x28, 0x03, 0x20, 0x00, 0x21, 0x00, 
00119 0x22, 0x00, 0x23, 0xa6, 0x26, 0xa0, 0x27, 0x07, 0x28, 0x04, 
00120 0x28, 0x05, 0x20, 0x05, 0x23, 0x84, 0x26, 0xb4, 0x27, 0x09, 
00121 0x28, 0x06, 0x20, 0x00, 0x22, 0x03, 0x23, 0x00, 0x24, 0x81, 
00122 0x25, 0xc0, 0x26, 0xab, 0x27, 0x0a, 0x28, 0x07, 0x21, 0xae, 
00123 0x22, 0x00, 0x23, 0x95, 0x24, 0x89, 0x25, 0x07, 0x26, 0xa4, 
00124 0x27, 0x00, 0x28, 0x08, 0x21, 0x48, 0x22, 0x01, 0x23, 0x80, 
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00129 0x26, 0xc4, 0x27, 0x0c, 0x28, 0x0d, 0x22, 0x24, 0x26, 0xc6, 
00130 0x28, 0x0e, 0x21, 0x9e, 0x22, 0x00, 0x26, 0xc8, 0x28, 0x0f, 
00131 0x20, 0x09, 0x21, 0x02, 0x22, 0x14, 0x26, 0xaa, 0x27, 0x0a, 
00132 0x28, 0x10, 0x20, 0x05, 0x21, 0x00, 0x22, 0x00, 0x23, 0x84, 
00133 0x26, 0xb4, 0x27, 0x09, 0x28, 0x11, 0x20, 0x00, 0x21, 0x01, 
00134 0x23, 0x00, 0x24, 0x01, 0x25, 0xc0, 0x26, 0xab, 0x27, 0x0a, 
00135 0x28, 0x12, 0x21, 0xc3, 0x23, 0x95, 0x24, 0x89, 0x25, 0x07, 
00136 0x26, 0x20, 0x27, 0x00, 0x28, 0x13, 0x20, 0x03, 0x21, 0xc2, 
00137 0x23, 0x83, 0x26, 0x26, 0x27, 0x0d, 0x28, 0x14, 0x21, 0xb3, 
00138 0x22, 0x08, 0x28, 0x15, 0x20, 0x00, 0x21, 0xc6, 0x22, 0x00, 
00139 0x23, 0x95, 0x26, 0x00, 0x27, 0x08, 0x28, 0x16, 0x21, 0x00, 
00140 0x23, 0x00, 0x24, 0x96, 0x25, 0x03, 0x26, 0xaa, 0x27, 0x0a, 
00141 0x28, 0x17, 0x20, 0x42, 0x21, 0xb6, 0x23, 0x80, 0x24, 0x89, 
00142 0x25, 0x07, 0x28, 0x18, 0x20, 0x00, 0x21, 0x00, 0x23, 0x94, 
00143 0x26, 0x0e, 0x28, 0x19, 0x20, 0x0f, 0x23, 0x84, 0x26, 0xb4, 
00144 0x27, 0x09, 0x28, 0x1a, 0x20, 0x00, 0x23, 0x93, 0x26, 0xa8, 
00145 0x27, 0x03, 0x28, 0x1b, 0x26, 0x28, 0x27, 0x00, 0x28, 0x1c, 
00146 0x21, 0x01, 0x23, 0x00, 0x24, 0x01, 0x25, 0xc0, 0x26, 0xab, 
00147 0x27, 0x0a, 0x28, 0x1d, 0x21, 0xc5, 0x23, 0x95, 0x24, 0x89, 
00148 0x25, 0x07, 0x26, 0x20, 0x27, 0x00, 0x28, 0x1e, 0x21, 0x00, 
00149 0x23, 0x94, 0x26, 0x00, 0x27, 0x0a, 0x28, 0x1f, 0x26, 0x0e, 
00150 0x28, 0x20, 0x20, 0x03, 0x21, 0x79, 0x22, 0x01, 0x23, 0x83, 
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00154 0x23, 0x00, 0x25, 0x00, 0x28, 0x24, 0x21, 0xa3, 0x22, 0x0d, 
00155 0x23, 0x80, 0x24, 0x9e, 0x25, 0x3b, 0x28, 0x25, 0x20, 0x42, 
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00158 0x28, 0x27, 0x21, 0x08, 0x22, 0x98, 0x23, 0x95, 0x24, 0x89, 
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00165 0x27, 0x0a, 0x28, 0x2c, 0x21, 0x02, 0x23, 0x80, 0x24, 0x86, 
00166 0x25, 0xc3, 0x26, 0xab, 0x28, 0x2d, 0x20, 0x42, 0x21, 0x97, 
00167 0x22, 0x01, 0x24, 0x89, 0x25, 0x07, 0x26, 0xaa, 0x28, 0x2e, 
00168 0x20, 0x00, 0x21, 0x00, 0x22, 0x00, 0x24, 0x1f, 0x25, 0x04, 
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00170 0x26, 0x20, 0x27, 0x04, 0x28, 0x30, 0x20, 0x42, 0x21, 0x8b, 
00171 0x22, 0x04, 0x23, 0x80, 0x26, 0xaa, 0x27, 0x0a, 0x28, 0x31, 
00172 0x20, 0x00, 0x21, 0xb1, 0x22, 0x00, 0x23, 0x95, 0x26, 0xa0, 
00173 0x27, 0x07, 0x28, 0x32, 0x20, 0x03, 0x21, 0x75, 0x22, 0x04, 
00174 0x23, 0x83, 0x26, 0x26, 0x27, 0x0d, 0x28, 0x33, 0x20, 0x05, 
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00176 0x28, 0x34, 0x20, 0x00, 0x21, 0x60, 0x23, 0x00, 0x24, 0x01, 
00177 0x25, 0xc0, 0x26, 0xab, 0x27, 0x0a, 0x28, 0x35, 0x21, 0x08, 
00178 0x22, 0x98, 0x23, 0x95, 0x24, 0x89, 0x25, 0x07, 0x26, 0x24, 
00179 0x27, 0x00, 0x28, 0x36, 0x21, 0xbc, 0x22, 0x00, 0x28, 0x37, 
00180 0x21, 0xa3, 0x22, 0x0d, 0x23, 0x00, 0x24, 0x01, 0x25, 0xc0, 
00181 0x26, 0xab, 0x27, 0x0a, 0x28, 0x38, 0x21, 0x60, 0x22, 0x00, 
00182 0x23, 0x80, 0x24, 0x00, 0x25, 0x38, 0x26, 0xaa, 0x28, 0x39, 
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00185 0x28, 0x3b, 0x20, 0x05, 0x21, 0x00, 0x23, 0x84, 0x26, 0xb4, 
00186 0x27, 0x09, 0x28, 0x3c, 0x20, 0x00, 0x21, 0x60, 0x23, 0x00, 
00187 0x24, 0x01, 0x25, 0xc0, 0x26, 0xab, 0x27, 0x0a, 0x28, 0x3d, 
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00191 0x21, 0x60, 0x22, 0x00, 0x23, 0x00, 0x24, 0x01, 0x25, 0xc0, 
00192 0x26, 0xab, 0x27, 0x0a, 0x28, 0x41, 0x21, 0x0c, 0x22, 0x98, 
00193 0x23, 0x95, 0x24, 0x89, 0x25, 0x07, 0x26, 0x24, 0x27, 0x00, 
00194 0x28, 0x42, 0x20, 0x05, 0x21, 0x00, 0x22, 0x00, 0x23, 0x84, 
00195 0x26, 0xb4, 0x27, 0x09, 0x28, 0x43, 0x20, 0x00, 0x23, 0x80, 
00196 0x24, 0x00, 0x25, 0x10, 0x26, 0xab, 0x27, 0x0a, 0x28, 0x44, 
00197 0x21, 0x22, 0x22, 0x01, 0x23, 0x95, 0x24, 0x89, 0x25, 0x07, 
00198 0x26, 0x24, 0x27, 0x00, 0x28, 0x45, 0x21, 0x00, 0x22, 0x00, 
00199 0x23, 0x00, 0x24, 0x04, 0x25, 0x12, 0x26, 0xaa, 0x27, 0x0a, 
00200 0x28, 0x46, 0x20, 0x03, 0x21, 0xd4, 0x22, 0x05, 0x23, 0x83, 
00201 0x24, 0x89, 0x25, 0x07, 0x26, 0x26, 0x27, 0x0d, 0x28, 0x47, 
00202 0x20, 0x00, 0x21, 0x60, 0x22, 0x00, 0x23, 0x00, 0x24, 0x01, 
00203 0x25, 0xc0, 0x26, 0xab, 0x27, 0x0a, 0x28, 0x48, 0x21, 0xb3, 
00204 0x23, 0x95, 0x24, 0x89, 0x25, 0x07, 0x26, 0x00, 0x27, 0x08, 
00205 0x28, 0x49, 0x21, 0x00, 0x23, 0x00, 0x24, 0x09, 0x25, 0x00, 
00206 0x26, 0xaa, 0x27, 0x0a, 0x28, 0x4a, 0x21, 0x02, 0x23, 0x80, 
00207 0x24, 0x86, 0x25, 0x3b, 0x28, 0x4b, 0x20, 0x42, 0x21, 0xdd, 
00208 0x22, 0x05, 0x24, 0x89, 0x25, 0x07, 0x28, 0x4c, 0x20, 0x00, 
00209 0x21, 0x00, 0x22, 0x00, 0x24, 0x1f, 0x25, 0x00, 0x28, 0x4d, 
00210 0x21, 0xb3, 0x23, 0x95, 0x24, 0x89, 0x25, 0x07, 0x26, 0x20, 
00211 0x27, 0x00, 0x28, 0x4e, 0x21, 0x00, 0x23, 0x00, 0x24, 0x97, 
00212 0x25, 0x03, 0x26, 0xaa, 0x27, 0x0a, 0x28, 0x4f, 0x20, 0x42, 
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00394 0x20, 0x42, 0x21, 0x1c, 0x22, 0x0e, 0x23, 0x00, 0x24, 0x80, 
00395 0x25, 0x07, 0x28, 0xda, 0x20, 0x00, 0x21, 0x35, 0x22, 0x29, 
00396 0x26, 0xc4, 0x27, 0x0c, 0x28, 0xdb, 0x20, 0x02, 0x21, 0x1d, 
00397 0x22, 0x0e, 0x26, 0x1e, 0x27, 0x00, 0x28, 0xdc, 0x20, 0x00, 
00398 0x21, 0x7f, 0x22, 0x34, 0x26, 0xc4, 0x27, 0x0c, 0x28, 0xdd, 
00399 0x21, 0x00, 0x22, 0x00, 0x23, 0x90, 0x24, 0x9f, 0x25, 0x04, 
00400 0x26, 0x10, 0x27, 0x0a, 0x28, 0xde, 0x23, 0x00, 0x24, 0x84, 
00401 0x25, 0x00, 0x26, 0x80, 0x27, 0x10, 0x28, 0xdf, 0x21, 0x06, 
00402 0x23, 0x63, 0x24, 0x80, 0x25, 0x07, 0x26, 0x2a, 0x27, 0x00, 
00403 0x28, 0xe0, 0x21, 0x00, 0x23, 0x80, 0x24, 0x89, 0x26, 0xaa, 
00404 0x27, 0x0a, 0x28, 0xe1, 0x20, 0x05, 0x23, 0x84, 0x26, 0xb4, 
00405 0x27, 0x09, 0x28, 0xe2, 0x20, 0x70, 0x21, 0x61, 0x22, 0xb8, 
00406 0x23, 0x95, 0x26, 0x12, 0x27, 0x08, 0x28, 0xe3, 0x20, 0x00, 
00407 0x21, 0x01, 0x22, 0x00, 0x23, 0x80, 0x24, 0x86, 0x25, 0xc3, 
00408 0x26, 0xab, 0x27, 0x0a, 0x28, 0xe4, 0x20, 0x42, 0x21, 0xce, 
00409 0x22, 0x0f, 0x24, 0x89, 0x25, 0x07, 0x26, 0xaa, 0x28, 0xe5, 
00410 0x20, 0x70, 0x21, 0x50, 0x22, 0xb8, 0x23, 0x95, 0x26, 0x12, 
00411 0x27, 0x08, 0x28, 0xe6, 0x20, 0x05, 0x21, 0x00, 0x22, 0x00, 
00412 0x23, 0x84, 0x26, 0xb4, 0x27, 0x09, 0x28, 0xe7, 0x20, 0x70, 
00413 0x21, 0x64, 0x22, 0xb8, 0x23, 0x95, 0x26, 0x12, 0x27, 0x08, 
00414 0x28, 0xe8, 0x20, 0x00, 0x21, 0x01, 0x22, 0x00, 0x23, 0x80, 
00415 0x24, 0x86, 0x25, 0xc3, 0x26, 0xab, 0x27, 0x0a, 0x28, 0xe9, 
00416 0x20, 0x42, 0x21, 0xd3, 0x22, 0x0f, 0x24, 0x89, 0x25, 0x07, 
00417 0x26, 0xaa, 0x28, 0xea, 0x20, 0x70, 0x21, 0x51, 0x22, 0xb8, 
00418 0x23, 0x95, 0x26, 0x12, 0x27, 0x08, 0x28, 0xeb, 0x20, 0x05, 
00419 0x21, 0x00, 0x22, 0x00, 0x23, 0x84, 0x26, 0xb4, 0x27, 0x09, 
00420 0x28, 0xec, 0x20, 0x70, 0x21, 0x65, 0x22, 0xb8, 0x23, 0x95, 
00421 0x26, 0x12, 0x27, 0x08, 0x28, 0xed, 0x20, 0x00, 0x21, 0x01, 
00422 0x22, 0x00, 0x23, 0x80, 0x24, 0x86, 0x25, 0xc3, 0x26, 0xab, 
00423 0x27, 0x0a, 0x28, 0xee, 0x20, 0x42, 0x21, 0xd8, 0x22, 0x0f, 
00424 0x24, 0x89, 0x25, 0x07, 0x26, 0xaa, 0x28, 0xef, 0x20, 0x70, 
00425 0x21, 0x52, 0x22, 0xb8, 0x23, 0x95, 0x26, 0x12, 0x27, 0x08, 
00426 0x28, 0xf0, 0x20, 0x05, 0x21, 0x00, 0x22, 0x00, 0x23, 0x84, 
00427 0x26, 0xb4, 0x27, 0x09, 0x28, 0xf1, 0x20, 0x70, 0x21, 0x61, 
00428 0x22, 0xb8, 0x23, 0x95, 0x26, 0x02, 0x27, 0x08, 0x28, 0xf2, 
00429 0x20, 0x00, 0x21, 0x01, 0x22, 0x00, 0x23, 0x80, 0x24, 0x86, 
00430 0x25, 0xc3, 0x26, 0xab, 0x27, 0x0a, 0x28, 0xf3, 0x20, 0x42, 
00431 0x21, 0xdd, 0x22, 0x0f, 0x24, 0x89, 0x25, 0x07, 0x26, 0xaa, 
00432 0x28, 0xf4, 0x20, 0x70, 0x21, 0x50, 0x22, 0xb8, 0x23, 0x95, 
00433 0x26, 0x02, 0x27, 0x08, 0x28, 0xf5, 0x20, 0x05, 0x21, 0x00, 
00434 0x22, 0x00, 0x23, 0x84, 0x26, 0xb4, 0x27, 0x09, 0x28, 0xf6, 
00435 0x20, 0x00, 0x21, 0x01, 0x23, 0x80, 0x24, 0x86, 0x25, 0xcb, 
00436 0x26, 0xab, 0x27, 0x0a, 0x28, 0xf7, 0x20, 0x42, 0x21, 0xe1, 
00437 0x22, 0x0f, 0x24, 0x89, 0x25, 0x07, 0x26, 0xaa, 0x28, 0xf8, 
00438 0x20, 0x00, 0x21, 0x02, 0x22, 0x00, 0x23, 0x00, 0x24, 0x81, 
00439 0x25, 0xc4, 0x26, 0xab, 0x28, 0xf9, 0x21, 0x00, 0x23, 0x80, 
00440 0x24, 0x89, 0x25, 0x48, 0x26, 0xaa, 0x28, 0xfa, 0x20, 0x05, 
00441 0x23, 0x84, 0x25, 0x07, 0x26, 0xb4, 0x27, 0x09, 0x28, 0xfb, 
00442 0x20, 0x70, 0x21, 0x4e, 0x22, 0xb8, 0x23, 0x95, 0x26, 0x10, 
00443 0x27, 0x08, 0x28, 0xfc, 0x20, 0x00, 0x21, 0x00, 0x22, 0x00, 
00444 0x23, 0x80, 0x24, 0x86, 0x25, 0xc3, 0x26, 0xab, 0x27, 0x0a, 
00445 0x28, 0xfd, 0x20, 0x42, 0x21, 0xe7, 0x22, 0x0f, 0x24, 0x89, 
00446 0x25, 0x07, 0x26, 0xaa, 0x28, 0xfe, 0x20, 0x00, 0x21, 0xbb, 
00447 0x22, 0x00, 0x23, 0x95, 0x26, 0x20, 0x27, 0x00, 0x28, 0xff, 
00448 0x20, 0x05, 0x21, 0x00, 0x23, 0x84, 0x26, 0xb4, 0x27, 0x09, 
00449 0x2a, 0x08, 0x10, 0x01, 0x3a, 0x00, 0x64, 0x3a, 0x65, 0xbb, 
00450 0x08, 0x3a, 0x09, 0xbb, 0x50, 0x10, 0x52, 0x67, 0x51, 0x77, 
00451 0x05, 0xa1, 0x18, 0x04, 0xff, 0xff
00452    };
00453 
00454 void sta013HWReset(void)
00455 {
00456     sbi(DDRD, 2);       // set reset pin to output
00457     sbi(PORTD, 2);      // clock RESET low
00458     cbi(PORTD, 2);
00459     timerPause(10);
00460     sbi(PORTD, 2);
00461 
00462     // give the sta013 a little time to come out of reset
00463     timerPause(50);
00464 }
00465 
00466 u08 sta013ReadReg(u08 reg)
00467 {
00468     u08 data;
00469     i2cReceive(STA_I2C_DEV, reg, 1, &data);
00470     return data;
00471 }
00472 
00473 void sta013WriteReg(u08 reg, u08 data)
00474 {
00475     i2cSend(STA_I2C_DEV, reg, 1, &data);
00476 }
00477 
00478 void sta013DownloadUpdate(void)
00479 {
00480     u16 i;
00481     u08 reg, data;
00482 
00483     i=0;
00484     // get first reg/data pair
00485     reg = pgm_read_byte(STA013_UpdateData + i++);
00486     data = pgm_read_byte(STA013_UpdateData + i++);
00487     // loop until end of update
00488     while( (reg != 0xff) )
00489     {
00490         sta013WriteReg(reg, data);
00491         reg = pgm_read_byte(STA013_UpdateData + i++);
00492         data = pgm_read_byte(STA013_UpdateData + i++);
00493     }
00494 }
00495 
00496 
00497 u08 sta013Init(void)
00498 {
00499     // reset STA013 device
00500     sta013HWReset();
00501 
00502     // identify STA013 device
00503     if(sta013ReadReg(STA_REG_IDENT) != STA_IDENT)
00504     {
00505         return FALSE;
00506     }
00507 
00508     // do firmware configuration and update
00509     sta013DownloadUpdate();
00510     // start decoder
00511     sta013StartDecoder();
00512     
00513     return TRUE;
00514 }
00515 
00516 
00517 void sta013StartDecoder(void)
00518 {
00519     // Soft reset
00520     sta013WriteReg(STA_REG_SOFT_RESET,          0x01);
00521     sta013WriteReg(STA_REG_SOFT_RESET,          0x00);
00522 
00523     // Mute and configure DAC output
00524     sta013WriteReg(STA_REG_MUTE,                0x01);
00525     sta013WriteReg(STA_REG_PCMDIVIDER,          0x01);  // 32-bit mode, O_FAC = 256
00526     sta013WriteReg(STA_REG_PCMCONF,             0x31);  // 18-bit mode & more
00527 
00528     // Configure PLL for MP3 rates
00529     sta013WriteReg(STA_REG_PLLFRAC_441_H,       0x67);
00530     sta013WriteReg(STA_REG_PLLFRAC_441_L,       0x77);
00531     sta013WriteReg(STA_REG_PLLFRAC_H,           0xbb);
00532     sta013WriteReg(STA_REG_PLLFRAC_L,           0x3a);
00533     sta013WriteReg(STA_REG_MFSDF_441,           0x10);
00534     sta013WriteReg(STA_REG_MFSDF,               0x0F);
00535 
00536     // Configure interface polarities, etc
00537     sta013WriteReg(STA_REG_PLLCTL_2,            0x0C);
00538     sta013WriteReg(STA_REG_PLLCTL_3,            0x00);
00539     sta013WriteReg(STA_REG_PLLCTL_1,            0xA1);
00540     sta013WriteReg(STA_REG_SCLK_POL,            0x00);  // data sampled on rising edge
00541     sta013WriteReg(STA_REG_REQ_POL,             0x01);  // REQ line active high
00542     sta013WriteReg(STA_REG_DATA_REQ_ENABLE,     0x04);
00543     sta013WriteReg(STA_REG_PLLCTL_1,            0xA1);
00544 
00545     // Set audio tone controls
00546     sta013SetTone(0, 0, 0, 0);
00547 
00548     // Unmute and start running
00549     sta013WriteReg(STA_REG_RUN,  0x01);
00550     sta013WriteReg(STA_REG_PLAY, 0x01);
00551     sta013WriteReg(STA_REG_MUTE, 0x00);
00552 }
00553 
00554 
00555 void sta013StopDecoder(void)
00556 {
00557     // mute output
00558     sta013WriteReg(STA_REG_MUTE, 0x01);
00559     // soft reset
00560     sta013WriteReg(STA_REG_SOFT_RESET, 0x01);
00561     sta013WriteReg(STA_REG_SOFT_RESET, 0x00);
00562 }
00563 
00564 
00565 void sta013PauseDecoder(void)
00566 {
00567     // enable mute
00568     sta013WriteReg(STA_REG_MUTE, 0x01);
00569     // stop the decoder
00570     sta013WriteReg(STA_REG_PLAY, 0x00);
00571 }
00572 
00573 
00574 void sta013ResumeDecoder(void)
00575 {
00576     // run the decoder
00577     sta013WriteReg(STA_REG_PLAY, 0x01);
00578     // disable mute
00579     sta013WriteReg(STA_REG_MUTE, 0x00);
00580 }
00581 
00582 void sta013GetMP3Info(u16 *bitrate, u08 *sampFreq, u08 *mode)
00583 {
00584     u08 headL, headM, headH;
00585     u08 mpegID, bitrateIndex, sampFreqIndex;
00586     
00587     // get the MP3 header info
00588     headH = sta013ReadReg(STA_REG_HEAD_H);
00589     headM = sta013ReadReg(STA_REG_HEAD_M);
00590     headL = sta013ReadReg(STA_REG_HEAD_L);
00591 
00592     // IDex:ID is in head[20:19]
00593     // 00 - MPEG2.5
00594     // 01 - reserved
00595     // 10 - MPEG2
00596     // 11 - MPEG1
00597     mpegID = (headH & 0x18)>>3;
00598 
00599     // sampling frequency is in head[11:10]
00600     sampFreqIndex = ((headM & 0x0C)>>2) | (mpegID<<2);
00601 
00602     // bitrate index is in head[15:12]
00603     bitrateIndex = ((headM & 0xF0)>>4) | ((mpegID & 0x01)<<4);
00604     //bitrateIndex = ((headM & 0xF0)>>4) | (1<<4);
00605     
00606     // mode is in head[7:6]
00607     // 00 - stereo
00608     // 01 - joint stereo
00609     // 10 - dual channel
00610     // 11 - single channel (mono)
00611     *mode = (headL & 0xC0)>>6;
00612     
00613     *bitrate =  2 * pgm_read_byte( MP3_Bitrates + bitrateIndex );
00614     *sampFreq = pgm_read_byte( MP3_SamplingFrequencies + sampFreqIndex );
00615 
00616 /*
00617    header = (unsigned long)sta013ReadReg(STA_REG_HEAD_H) << 16 |
00618        (unsigned long)sta013ReadReg(STA_REG_HEAD_M) << 8  |
00619        (unsigned long)sta013ReadReg(STA_REG_HEAD_L);
00620 
00621 //   hdr->word           = l;
00622 //   hdr->emphasis       = l & 0x03;
00623 //   hdr->isOriginal     = (l >> 2) & 0x01;
00624 //   hdr->isCopyrighted  = (l >> 3) & 0x01;
00625 //   hdr->modeExtension  = (l >> 4) & 0x03;
00626 //   hdr->mode           = (l >> 6) & 0x03;
00627 //   hdr->private        = (l >> 8) & 0x01;
00628 //   hdr->padding        = (l >> 9) & 0x01;
00629 //   hdr->frequencyIndex = (l >> 10) & 0x03;
00630 //   hdr->bitrateIndex   = (l >> 12) & 0x0f;
00631 //   hdr->protection     = (l >> 16) & 0x01;
00632 //   hdr->layer          = (l >> 17) & 0x03;
00633 //   hdr->ID             = (l >> 19) & 0x01;
00634 //   hdr->ID_ex          = (l >> 20) & 0x01;
00635 */
00636 }
00637 
00638 u16 sta013GetAverageBitrate(void)
00639 {
00640     return (2 * sta013ReadReg(STA_REG_AVERAGE_BITRATE));
00641 }
00642 
00643 void sta013SetVolume(u08 volume, s08 balance)
00644 {
00645     char attenL, attenR;
00646 
00647     // volume is expected as 0-100 value
00648     // Note:
00649     //  #define MIN_VOLUME_ATTENUATION     0
00650     //  #define MAX_VOLUME_ATTENUATION     96
00651 
00652     if( balance > 0)
00653     {   // balance to the left, attenuate right
00654         attenL = (100 - volume);
00655         attenR = (100 - volume) - (balance);
00656     }
00657     else
00658     {   // balance to the right, attenuate left
00659         attenL = (100 - volume) + (balance);
00660         attenR = (100 - volume);
00661     }
00662     // respect limits
00663     attenL = MIN(attenL,MAX_VOLUME_ATTENUATION);
00664     attenL = MAX(attenL,MIN_VOLUME_ATTENUATION);
00665     attenR = MIN(attenR,MAX_VOLUME_ATTENUATION);
00666     attenR = MAX(attenR,MIN_VOLUME_ATTENUATION);
00667 
00668     // set volume
00669     sta013WriteReg(STA_REG_DLA, attenL);
00670     sta013WriteReg(STA_REG_DLB, MAX_VOLUME_ATTENUATION);
00671     sta013WriteReg(STA_REG_DRA, attenR);
00672     sta013WriteReg(STA_REG_DRB, MAX_VOLUME_ATTENUATION);
00673 }
00674 
00675 
00676 void sta013SetTone(s08 bassEnh, u16 bassFreq, s08 trebleEnh, u16 trebleFreq)
00677 {
00678     // set bass enhancement
00679     sta013WriteReg(STA_REG_BASS_FREQUENCY_LOW,  (bassFreq   ) & 0xFF );
00680     sta013WriteReg(STA_REG_BASS_FREQUENCY_HIGH, (bassFreq>>8) & 0xFF );
00681     // respect limits
00682     bassEnh = MIN(bassEnh,MAX_BASS_ENHANCE);
00683     bassEnh = MAX(bassEnh,MIN_BASS_ENHANCE);
00684     sta013WriteReg(STA_REG_BASS_ENHANCE, bassEnh);
00685 
00686     // set treble enhancement
00687     sta013WriteReg(STA_REG_TREBLE_FREQUENCY_LOW,  (trebleFreq   ) & 0xFF );
00688     sta013WriteReg(STA_REG_TREBLE_FREQUENCY_HIGH, (trebleFreq>>8) & 0xFF );
00689     // respect limits
00690     trebleEnh = MIN(trebleEnh,MAX_TREBLE_ENHANCE);
00691     trebleEnh = MAX(trebleEnh,MIN_TREBLE_ENHANCE);
00692     sta013WriteReg(STA_REG_TREBLE_ENHANCE, trebleEnh);
00693 
00694     // set attentuation to avoid clipping
00695     sta013WriteReg( STA_REG_TONE_ATTEN, MAX(bassEnh,trebleEnh) );
00696 }
00697 
00698 u08 sta013Demand(void)
00699 {
00700     return bit_is_set(STA013_DEMAND_PORTIN,STA013_DEMAND_PIN);
00701 }