nkeynes@185 | 1 | #include <assert.h>
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nkeynes@185 | 2 | #include <stdlib.h>
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nkeynes@185 | 3 | #include "ide.h"
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nkeynes@185 | 4 | #include "lib.h"
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nkeynes@185 | 5 |
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nkeynes@185 | 6 | #define IDE_BASE 0xA05F7000
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nkeynes@185 | 7 |
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nkeynes@185 | 8 | #define IDE_ALTSTATUS IDE_BASE+0x018
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nkeynes@185 | 9 | #define IDE_UNKNOWN IDE_BASE+0x01C
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nkeynes@185 | 10 | #define IDE_DATA IDE_BASE+0x080 /* 16 bits */
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nkeynes@185 | 11 | #define IDE_FEATURE IDE_BASE+0x084
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nkeynes@185 | 12 | #define IDE_COUNT IDE_BASE+0x088
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nkeynes@185 | 13 | #define IDE_LBA0 IDE_BASE+0x08C
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nkeynes@185 | 14 | #define IDE_LBA1 IDE_BASE+0x090
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nkeynes@185 | 15 | #define IDE_LBA2 IDE_BASE+0x094
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nkeynes@185 | 16 | #define IDE_DEVICE IDE_BASE+0x098
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nkeynes@185 | 17 | #define IDE_COMMAND IDE_BASE+0x09C
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nkeynes@185 | 18 | #define IDE_ACTIVATE IDE_BASE+0x4E4
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nkeynes@185 | 19 |
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nkeynes@185 | 20 | #define IDE_DEVCONTROL IDE_ALTSTATUS
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nkeynes@185 | 21 | #define IDE_ERROR IDE_FEATURE
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nkeynes@185 | 22 | #define IDE_STATUS IDE_COMMAND
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nkeynes@185 | 23 |
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nkeynes@185 | 24 | #define IDE_DMA_ADDR IDE_BASE+0x404
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nkeynes@185 | 25 | #define IDE_DMA_SIZE IDE_BASE+0x408
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nkeynes@185 | 26 | #define IDE_DMA_DIR IDE_BASE+0x40C
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nkeynes@185 | 27 | #define IDE_DMA_CTL1 IDE_BASE+0x414
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nkeynes@185 | 28 | #define IDE_DMA_CTL2 IDE_BASE+0x418
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nkeynes@185 | 29 | #define IDE_DMA_MAGIC IDE_BASE+0x4B8
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nkeynes@185 | 30 | #define IDE_DMA_STATUS IDE_BASE+0x4F8
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nkeynes@185 | 31 |
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nkeynes@185 | 32 | #define DMA_BASE 0xFFA00000
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nkeynes@185 | 33 | #define DMA_SAR1 DMA_BASE+0x010
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nkeynes@185 | 34 | #define DMA_DAR1 DMA_BASE+0x014
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nkeynes@185 | 35 | #define DMA_TCR1 DMA_BASE+0x018
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nkeynes@185 | 36 | #define DMA_CHCR1 DMA_BASE+0x01C
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nkeynes@185 | 37 | #define DMA_SAR2 DMA_BASE+0x020
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nkeynes@185 | 38 | #define DMA_DAR2 DMA_BASE+0x024
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nkeynes@185 | 39 | #define DMA_TCR2 DMA_BASE+0x028
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nkeynes@185 | 40 | #define DMA_CHCR2 DMA_BASE+0x02C
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nkeynes@185 | 41 | #define DMA_SAR3 DMA_BASE+0x030
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nkeynes@185 | 42 | #define DMA_DAR3 DMA_BASE+0x034
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nkeynes@185 | 43 | #define DMA_TCR3 DMA_BASE+0x038
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nkeynes@185 | 44 | #define DMA_CHCR3 DMA_BASE+0x03C
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nkeynes@185 | 45 | #define DMA_DMAOR DMA_BASE+0x040
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nkeynes@185 | 46 | #define QUEUECR0 0xFF000038
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nkeynes@185 | 47 | #define QUEUECR1 0xFF00003C
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nkeynes@185 | 48 |
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nkeynes@185 | 49 | #define IDE_CMD_RESET 0x08
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nkeynes@185 | 50 | #define IDE_CMD_PACKET 0xA0
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nkeynes@185 | 51 | #define IDE_CMD_IDENTIFY_PACKET_DEVICE 0xA1
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nkeynes@185 | 52 | #define IDE_CMD_IDENTIFY_DEVICE 0xEC
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nkeynes@185 | 53 |
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nkeynes@185 | 54 | #define MMC_CMD_GET_CONFIGURATION 0x46
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nkeynes@185 | 55 | #define GD_CMD_IDENTIFY 0x11 /* guessing */
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nkeynes@185 | 56 |
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nkeynes@185 | 57 |
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nkeynes@185 | 58 | #define IDE_DMA_MAGIC_VALUE 0x8843407F
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nkeynes@185 | 59 |
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nkeynes@185 | 60 |
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nkeynes@185 | 61 | #define MAX_WAIT 10000000
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nkeynes@185 | 62 | #define MAX_IRQ_WAIT 1000000000
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nkeynes@185 | 63 |
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nkeynes@185 | 64 | /**
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nkeynes@185 | 65 | * Dump all ide registers to stdout.
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nkeynes@185 | 66 | */
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nkeynes@185 | 67 | void ide_dump_registers() {
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nkeynes@185 | 68 | int i,j;
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nkeynes@185 | 69 | printf( "IDE registers:\n");
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nkeynes@185 | 70 | printf( "Stats: %02X ", byte_read(IDE_ALTSTATUS) );
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nkeynes@185 | 71 | printf( "Error: %02X ", byte_read(IDE_ERROR) );
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nkeynes@185 | 72 | printf( "Count: %02X ", byte_read(IDE_COUNT) );
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nkeynes@185 | 73 | printf( "Dvice: %02X ", byte_read(IDE_DEVICE) );
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nkeynes@185 | 74 | if( long_read(ASIC_STATUS1)&1 ) {
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nkeynes@185 | 75 | printf( "INTRQ! " );
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nkeynes@185 | 76 | }
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nkeynes@185 | 77 | if( (long_read(ASIC_STATUS0)>>14)&1 ) {
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nkeynes@185 | 78 | printf( "DMARQ! " );
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nkeynes@185 | 79 | }
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nkeynes@185 | 80 | printf( "\nLBA 0: %02X ", byte_read(IDE_LBA0) );
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nkeynes@185 | 81 | printf( "LBA 1: %02X ", byte_read(IDE_LBA1) );
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nkeynes@185 | 82 | printf( "LBA 2: %02X ", byte_read(IDE_LBA2) );
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nkeynes@185 | 83 | printf( "0x01C: %02X\n", byte_read(IDE_UNKNOWN) );
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nkeynes@185 | 84 | printf( "DAddr: %08X ", long_read(IDE_DMA_ADDR) );
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nkeynes@185 | 85 | printf( "DSize: %08X ", long_read(IDE_DMA_SIZE) );
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nkeynes@185 | 86 | printf( "DDir : %08X ", long_read(IDE_DMA_DIR) );
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nkeynes@185 | 87 | printf( "DCtl1: %08X ", long_read(IDE_DMA_CTL1) );
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nkeynes@185 | 88 | printf( "DCtl2: %08X\n", long_read(IDE_DMA_CTL2) );
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nkeynes@185 | 89 | printf( "DStat: %08X\n", long_read(IDE_DMA_STATUS) );
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nkeynes@185 | 90 | printf( "ASIC: " );
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nkeynes@185 | 91 | for( i=0; i<12; i+=4 ) {
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nkeynes@185 | 92 | unsigned int val = long_read(ASIC_STATUS0+i);
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nkeynes@185 | 93 | for( j=0; j<32; j++ ) {
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nkeynes@185 | 94 | if( val & (1<<j) ) {
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nkeynes@185 | 95 | printf( "%d ", j );
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nkeynes@185 | 96 | }
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nkeynes@185 | 97 | }
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nkeynes@185 | 98 | printf( "| " );
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nkeynes@185 | 99 | }
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nkeynes@185 | 100 | printf( "\n" );
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nkeynes@185 | 101 | }
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nkeynes@185 | 102 |
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nkeynes@185 | 103 | /**
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nkeynes@185 | 104 | * Wait for the IDE INTRQ line to go active (bit 0 of the second word)
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nkeynes@185 | 105 | * @return 0 on success, non-zero on timeout
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nkeynes@185 | 106 | */
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nkeynes@185 | 107 | int ide_wait_irq() {
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nkeynes@185 | 108 | unsigned int status;
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nkeynes@185 | 109 | int i;
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nkeynes@185 | 110 | for( i=0; i<MAX_WAIT; i++ ) {
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nkeynes@185 | 111 | status = long_read( ASIC_STATUS1 );
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nkeynes@185 | 112 | if( (status&1) != 0 )
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nkeynes@185 | 113 | return 0;
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nkeynes@185 | 114 | }
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nkeynes@185 | 115 | printf( "Timeout waiting for IDE INTRQ\n" );
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nkeynes@185 | 116 | ide_dump_registers();
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nkeynes@185 | 117 | return 1;
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nkeynes@185 | 118 | }
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nkeynes@185 | 119 |
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nkeynes@185 | 120 | /**
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nkeynes@185 | 121 | * Wait for the IDE BSY flag to be de-asserted.
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nkeynes@185 | 122 | * @return 0 on success, non-zero on timeout
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nkeynes@185 | 123 | */
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nkeynes@185 | 124 | int ide_wait_ready() {
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nkeynes@185 | 125 | unsigned char status;
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nkeynes@185 | 126 | int i;
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nkeynes@185 | 127 | for( i=0; i<MAX_WAIT; i++ ) {
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nkeynes@185 | 128 | status = byte_read(IDE_ALTSTATUS);
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nkeynes@185 | 129 | if( (status & 0x80) != 0x80 )
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nkeynes@185 | 130 | return 0;
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nkeynes@185 | 131 | }
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nkeynes@185 | 132 | printf( "Timeout waiting for IDE to become ready\n" );
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nkeynes@185 | 133 | ide_dump_registers();
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nkeynes@185 | 134 | return 1;
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nkeynes@185 | 135 | }
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nkeynes@185 | 136 |
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nkeynes@185 | 137 | int ide_wait_dma() {
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nkeynes@185 | 138 | unsigned int status;
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nkeynes@185 | 139 | int i;
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nkeynes@185 | 140 | for( i=0; i<MAX_WAIT; i++ ) {
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nkeynes@185 | 141 | status = long_read(IDE_DMA_CTL2);
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nkeynes@185 | 142 | if( (status & 1) == 0 )
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nkeynes@185 | 143 | return 0;
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nkeynes@185 | 144 | }
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nkeynes@185 | 145 | printf( "[IDE] Timeout waiting for DMA to become ready\n" );
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nkeynes@185 | 146 | return 1;
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nkeynes@185 | 147 | }
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nkeynes@185 | 148 |
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nkeynes@185 | 149 | /**
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nkeynes@185 | 150 | * Write the command packet out to the interface.
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nkeynes@185 | 151 | * @param cmd 12 byte ATAPI command packet
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nkeynes@185 | 152 | * @param dma 1 = dma mode, 0 = pio mode
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nkeynes@185 | 153 | */
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nkeynes@185 | 154 | int ide_write_command_packet( char *cmd, int dma )
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nkeynes@185 | 155 | {
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nkeynes@185 | 156 | int i, status;
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nkeynes@185 | 157 | unsigned short *spkt = (unsigned short *)cmd;
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nkeynes@185 | 158 | unsigned short length = 8;
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nkeynes@185 | 159 | if( ide_wait_ready() )
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nkeynes@185 | 160 | return 1;
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nkeynes@185 | 161 | byte_write( IDE_FEATURE, dma );
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nkeynes@185 | 162 | byte_write( IDE_COUNT, 0 );
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nkeynes@185 | 163 | byte_write( IDE_LBA0, 0 );
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nkeynes@185 | 164 | byte_write( IDE_LBA1, (length&0xFF) );
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nkeynes@185 | 165 | byte_write( IDE_LBA2, (length>>8)&0xFF );
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nkeynes@185 | 166 | byte_write( IDE_DEVICE, 0 );
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nkeynes@185 | 167 | byte_write( IDE_COMMAND, IDE_CMD_PACKET );
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nkeynes@185 | 168 | status = byte_read(IDE_ALTSTATUS); /* delay 1 PIO cycle as per spec */
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nkeynes@185 | 169 | printf( "After writing PACKET command byte:\n" );
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nkeynes@185 | 170 | ide_dump_registers();
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nkeynes@185 | 171 | /* Wait until device is ready to accept command */
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nkeynes@185 | 172 | if( ide_wait_ready() )
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nkeynes@185 | 173 | return 1;
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nkeynes@185 | 174 | printf( "Device ready to receive packet:\n" );
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nkeynes@185 | 175 | ide_dump_registers();
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nkeynes@185 | 176 |
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nkeynes@185 | 177 | /* Write the command */
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nkeynes@185 | 178 | for( i=0; i<6; i++ ) {
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nkeynes@185 | 179 | word_write( IDE_DATA, spkt[i] );
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nkeynes@185 | 180 | }
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nkeynes@185 | 181 | printf( "After writing command packet:\n" );
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nkeynes@185 | 182 | ide_dump_registers();
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nkeynes@185 | 183 | }
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nkeynes@185 | 184 |
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nkeynes@185 | 185 | int ide_read_pio( char *buf, int buflen ) {
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nkeynes@185 | 186 | int i;
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nkeynes@185 | 187 | unsigned short *bufptr = (unsigned short *)buf;
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nkeynes@185 | 188 | unsigned int length = 0, avail;
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nkeynes@185 | 189 | int status;
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nkeynes@185 | 190 |
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nkeynes@185 | 191 | while(1) {
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nkeynes@185 | 192 | if( ide_wait_ready() )
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nkeynes@185 | 193 | return -1;
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nkeynes@185 | 194 | status = byte_read( IDE_STATUS );
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nkeynes@185 | 195 | if( (status & 0xE9) == 0x48 ) {
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nkeynes@185 | 196 | /* Bytes available */
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nkeynes@185 | 197 | avail = (byte_read( IDE_LBA1 )) | (byte_read(IDE_LBA2)<<8);
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nkeynes@185 | 198 | for( i=0; i<avail; i+=2 ) {
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nkeynes@185 | 199 | if( buflen > 0 ) {
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nkeynes@185 | 200 | *bufptr++ = word_read(IDE_DATA);
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nkeynes@185 | 201 | buflen-=2;
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nkeynes@185 | 202 | }
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nkeynes@185 | 203 | }
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nkeynes@185 | 204 | length += avail;
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nkeynes@185 | 205 | if( avail == 0 ) {
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nkeynes@185 | 206 | /* Should never happen */
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nkeynes@185 | 207 | printf( "[IDE] Unexpected read length 0\n" );
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nkeynes@185 | 208 | return -1;
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nkeynes@185 | 209 | }
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nkeynes@185 | 210 | } else {
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nkeynes@185 | 211 | if( status&0x01 ) {
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nkeynes@185 | 212 | printf( "[IDE] ERROR! (%02X)\n", status );
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nkeynes@185 | 213 | } else if( (status&0x08) == 0 ) {
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nkeynes@185 | 214 | /* No more data */
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nkeynes@185 | 215 | return length;
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nkeynes@185 | 216 | } else {
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nkeynes@185 | 217 | printf( "[IDE] Unexpected status result: %02X\n", status );
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nkeynes@185 | 218 | return -1;
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nkeynes@185 | 219 | }
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nkeynes@185 | 220 | }
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nkeynes@185 | 221 | }
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nkeynes@185 | 222 | }
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nkeynes@185 | 223 |
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nkeynes@185 | 224 | int ide_read_dma( char *buf, int buflen )
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nkeynes@185 | 225 | {
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nkeynes@185 | 226 | int status;
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nkeynes@185 | 227 |
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nkeynes@185 | 228 | long_write( IDE_DMA_CTL1, 1 );
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nkeynes@185 | 229 | long_write( IDE_DMA_CTL2, 1 );
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nkeynes@185 | 230 |
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nkeynes@185 | 231 | printf( "Started DMA\n" );
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nkeynes@185 | 232 | ide_dump_registers();
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nkeynes@185 | 233 |
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nkeynes@185 | 234 | ide_wait_irq();
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nkeynes@185 | 235 | printf( "After IRQ\n" );
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nkeynes@185 | 236 | ide_dump_registers();
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nkeynes@185 | 237 | long_write( IDE_DMA_CTL1, 0 );
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nkeynes@185 | 238 | status = ide_wait_dma();
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nkeynes@185 | 239 | printf( "After DMA finished\n");
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nkeynes@185 | 240 | ide_dump_registers();
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nkeynes@185 | 241 | if( status != 0 ) {
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nkeynes@185 | 242 | return -1;
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nkeynes@185 | 243 | }
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nkeynes@185 | 244 | status = long_read(ASIC_STATUS0);
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nkeynes@185 | 245 | if( (status & (1<<14)) == 0 ) {
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nkeynes@185 | 246 | printf( "DMARQ cleared already\n");
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nkeynes@185 | 247 | } else {
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nkeynes@185 | 248 | /*
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nkeynes@185 | 249 | status &= ~(1<<14);
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nkeynes@185 | 250 | long_write(ASIC_STATUS0, status);
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nkeynes@185 | 251 | status = long_read(ASIC_STATUS0);
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nkeynes@185 | 252 | */
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nkeynes@185 | 253 | byte_read(IDE_STATUS );
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nkeynes@185 | 254 | if( (status & (1<<14)) == 0 ) {
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nkeynes@185 | 255 | printf( "DMARQ cleared successfully\n" );
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nkeynes@185 | 256 | } else {
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nkeynes@185 | 257 | printf( "DMARQ not cleared: %08X\n", long_read(ASIC_STATUS0) );
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nkeynes@185 | 258 | }
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nkeynes@185 | 259 | }
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nkeynes@185 | 260 | status = ide_wait_ready();
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nkeynes@185 | 261 | printf( "After IDE ready\n");
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nkeynes@185 | 262 | ide_dump_registers();
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nkeynes@185 | 263 | if( status != 0 ) {
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nkeynes@185 | 264 | return -1;
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nkeynes@185 | 265 | }
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nkeynes@185 | 266 | return long_read( IDE_DMA_STATUS );
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nkeynes@185 | 267 | }
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nkeynes@185 | 268 |
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nkeynes@185 | 269 | int ide_do_packet_command_pio( char *cmd, char *buf, int length )
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nkeynes@185 | 270 | {
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nkeynes@185 | 271 | ide_write_command_packet( cmd, 0 );
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nkeynes@185 | 272 | length = ide_read_pio( buf, length );
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nkeynes@185 | 273 | return length;
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nkeynes@185 | 274 | }
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nkeynes@185 | 275 |
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nkeynes@185 | 276 | int ide_do_packet_command_dma( char *cmd, char *buf, int length )
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nkeynes@185 | 277 | {
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nkeynes@185 | 278 | long_write( QUEUECR0, 0x10 );
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nkeynes@185 | 279 | long_write( QUEUECR1, 0x10 );
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nkeynes@185 | 280 | long_write( IDE_DMA_MAGIC, IDE_DMA_MAGIC_VALUE );
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nkeynes@185 | 281 | long_write( IDE_DMA_ADDR, (unsigned int)buf );
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nkeynes@185 | 282 | long_write( IDE_DMA_SIZE, length );
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nkeynes@185 | 283 | long_write( IDE_DMA_DIR, 1 );
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nkeynes@185 | 284 | ide_write_command_packet( cmd, 1 );
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nkeynes@185 | 285 | length = ide_read_dma( buf, length );
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nkeynes@185 | 286 | return length;
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nkeynes@185 | 287 | }
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nkeynes@185 | 288 |
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nkeynes@185 | 289 | int ide_init()
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nkeynes@185 | 290 | {
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nkeynes@185 | 291 | if( ide_wait_ready() )
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nkeynes@185 | 292 | return -1;
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nkeynes@185 | 293 |
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nkeynes@185 | 294 | /** Set Default PIO mode */
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nkeynes@185 | 295 | byte_write( IDE_FEATURE, 0x03 );
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nkeynes@185 | 296 | byte_write( IDE_COUNT, 0x0B );
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nkeynes@185 | 297 | byte_write( IDE_COMMAND, 0xEF );
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nkeynes@185 | 298 |
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nkeynes@185 | 299 | if( ide_wait_ready() )
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nkeynes@185 | 300 | return -1;
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nkeynes@185 | 301 |
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nkeynes@185 | 302 | /** Set Multi-word DMA mode 2 */
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nkeynes@185 | 303 | long_write( 0xA05F7490, 0x222 );
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nkeynes@185 | 304 | long_write( 0xA05F7494, 0x222 );
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nkeynes@185 | 305 | byte_write( IDE_FEATURE, 0x03 );
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nkeynes@185 | 306 | byte_write( IDE_COUNT, 0x22 );
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nkeynes@185 | 307 | byte_write( IDE_COMMAND, 0xEF );
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nkeynes@185 | 308 | if( ide_wait_ready() )
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nkeynes@185 | 309 | return -1;
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nkeynes@185 | 310 |
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nkeynes@185 | 311 | word_write( 0xA05F7480, 0x400 );
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nkeynes@185 | 312 | long_write( 0xA05F7488, 0x200 );
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nkeynes@185 | 313 | long_write( 0xA05F748C, 0x200 );
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nkeynes@185 | 314 | long_write( 0xA05F74A0, 0x2001 );
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nkeynes@185 | 315 | long_write( 0xA05F74A4, 0x2001 );
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nkeynes@185 | 316 | long_write( 0xA05F74B4, 0x0001 );
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nkeynes@185 | 317 | }
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nkeynes@185 | 318 |
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nkeynes@185 | 319 | int ide_sense_error( char *buf )
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nkeynes@185 | 320 | {
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nkeynes@185 | 321 | char cmd[12] = { 0x13,0,0,0, 10,0,0,0, 0,0,0,0 };
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nkeynes@185 | 322 | return ide_do_packet_command_pio( cmd, buf, 10 );
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nkeynes@185 | 323 | }
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nkeynes@185 | 324 |
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nkeynes@185 | 325 | void ide_print_sense_error()
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nkeynes@185 | 326 | {
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nkeynes@185 | 327 | char buf[10];
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nkeynes@185 | 328 | if( ide_sense_error(buf) != 10 ) {
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nkeynes@185 | 329 | printf( "ERROR - Sense error failed!\n" );
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nkeynes@185 | 330 | return;
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nkeynes@185 | 331 | }
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nkeynes@185 | 332 | int major = buf[2] & 0xFF;
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nkeynes@185 | 333 | int minor = buf[8] & 0xFF;
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nkeynes@185 | 334 | printf( "[IDE] Error code %02X,%02X\n", major, minor );
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nkeynes@185 | 335 | }
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nkeynes@185 | 336 |
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nkeynes@185 | 337 | int ide_test_ready()
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nkeynes@185 | 338 | {
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nkeynes@185 | 339 | char cmd[12] = { 0,0,0,0, 0,0,0,0, 0,0,0,0 };
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nkeynes@185 | 340 | int length = ide_do_packet_command_pio( cmd, NULL, 0 );
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nkeynes@185 | 341 | return length;
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nkeynes@185 | 342 | }
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nkeynes@185 | 343 |
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nkeynes@185 | 344 | int ide_read_toc( char *buf, int length )
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nkeynes@185 | 345 | {
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nkeynes@185 | 346 | char cmd[12] = { 0x14,0,0,0, 0x98,0,0,0, 0,0,0,0 };
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nkeynes@185 | 347 | return ide_do_packet_command_pio( cmd, buf, length );
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nkeynes@185 | 348 | }
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nkeynes@185 | 349 |
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nkeynes@185 | 350 | int ide_get_session( int session, struct gdrom_session *session_data )
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nkeynes@185 | 351 | {
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nkeynes@185 | 352 | char cmd[12] = {0x15, 0, session, 0, 6,0,0,0, 0,0,0,0 };
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nkeynes@185 | 353 | char buf[6];
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nkeynes@185 | 354 | int length = ide_do_packet_command_pio( cmd, buf, sizeof(buf) );
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nkeynes@185 | 355 | if( length < 0 )
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nkeynes@185 | 356 | return length;
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nkeynes@185 | 357 | if( length != 6 )
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nkeynes@185 | 358 | return -1;
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nkeynes@185 | 359 | assert(length == 6);
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nkeynes@185 | 360 | session_data->track = ((int)buf[2])&0xFF;
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nkeynes@185 | 361 | session_data->lba = (((int)buf[3])&0xFF) << 16 |
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nkeynes@185 | 362 | (((int)buf[4])&0xFF) << 8 |
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nkeynes@185 | 363 | (((int)buf[5])&0xFF);
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nkeynes@185 | 364 | return 0;
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nkeynes@185 | 365 | }
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nkeynes@185 | 366 |
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nkeynes@185 | 367 | int ide_spinup( )
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nkeynes@185 | 368 | {
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nkeynes@185 | 369 | char cmd[12] = {0x70,0x1F,0,0, 0,0,0,0, 0,0,0,0};
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nkeynes@185 | 370 | int length = ide_do_packet_command_pio( cmd, NULL, 0 );
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nkeynes@185 | 371 | return length;
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nkeynes@185 | 372 | }
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nkeynes@185 | 373 |
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nkeynes@185 | 374 | int ide_unknown71( char *buf, int length )
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nkeynes@185 | 375 | {
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nkeynes@185 | 376 | char cmd[12] = {0x71,0,0,0, 0,0,0,0, 0,0,0,0};
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nkeynes@185 | 377 | return ide_do_packet_command_pio( cmd, buf, length );
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nkeynes@185 | 378 | }
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nkeynes@185 | 379 |
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nkeynes@185 | 380 | int ide_read_sector_pio( uint32_t sector, uint32_t count, int mode,
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nkeynes@185 | 381 | char *buf, int length )
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nkeynes@185 | 382 | {
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nkeynes@185 | 383 | char cmd[12] = { 0x30,0,0,0, 0,0,0,0, 0,0,0,0 };
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nkeynes@185 | 384 |
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nkeynes@185 | 385 | cmd[1] = mode;
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nkeynes@185 | 386 | cmd[2] = (sector>>16)&0xFF;
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nkeynes@185 | 387 | cmd[3] = (sector>>8)&0xFF;
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nkeynes@185 | 388 | cmd[4] = sector&0xFF;
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nkeynes@185 | 389 | cmd[8] = (count>>16)&0xFF;
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nkeynes@185 | 390 | cmd[9] = (count>>8)&0xFF;
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nkeynes@185 | 391 | cmd[10] = count&0xFF;
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nkeynes@185 | 392 | return ide_do_packet_command_pio( cmd, buf, length );
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nkeynes@185 | 393 | }
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nkeynes@185 | 394 |
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nkeynes@185 | 395 |
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nkeynes@185 | 396 | int ide_read_sector_dma( uint32_t sector, uint32_t count, int mode,
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nkeynes@185 | 397 | char *buf, int length )
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nkeynes@185 | 398 | {
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nkeynes@185 | 399 | char cmd[12] = { 0x30,0,0,0, 0,0,0,0, 0,0,0,0 };
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nkeynes@185 | 400 |
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nkeynes@185 | 401 | cmd[1] = mode;
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nkeynes@185 | 402 | cmd[2] = (sector>>16)&0xFF;
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nkeynes@185 | 403 | cmd[3] = (sector>>8)&0xFF;
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nkeynes@185 | 404 | cmd[4] = sector&0xFF;
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nkeynes@185 | 405 | cmd[8] = (count>>16)&0xFF;
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nkeynes@185 | 406 | cmd[9] = (count>>8)&0xFF;
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nkeynes@185 | 407 | cmd[10] = count&0xFF;
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nkeynes@185 | 408 | return ide_do_packet_command_dma( cmd, buf, length );
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nkeynes@185 | 409 | }
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nkeynes@185 | 410 |
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nkeynes@185 | 411 | int ide_read_something( )
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nkeynes@185 | 412 | {
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nkeynes@185 | 413 | char cmd[12] = { 0x12,0,0,0, 0x0a,0,0,0, 0,0,0,0 };
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nkeynes@185 | 414 | char result[10];
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nkeynes@185 | 415 | ide_do_packet_command_pio( cmd, result, 10 );
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nkeynes@185 | 416 | debug_dump_buffer(result,10);
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nkeynes@185 | 417 | return 0;
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nkeynes@185 | 418 | } |