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TOS: use FileReadEx/MMCReadMultiple for ACSI read

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This commit is contained in:
Gyorgy Szombathelyi
2019-11-27 18:34:47 +01:00
parent b6f47718f3
commit 5444d594ec
1 changed files with 20 additions and 11 deletions
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31
tos.c
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@@ -324,25 +324,34 @@ static void handle_acsi(unsigned char *buffer) {
}
if(lba+length <= blocks) {
// SD-Card -> FPGA direct SPI transfer on MIST2
unsigned char *sector_buffer = (user_io_core_type() == CORE_TYPE_MIST2) ? 0 : dma_buffer;
DISKLED_ON;
while(length) {
if (user_io_core_type() == CORE_TYPE_MIST2) {
// SD-Card -> FPGA direct SPI transfer on MIST2
spi_speed = spi_get_speed();
mist2_spi_set_speed(spi_newspeed);
if(hdd_direct && target == 0) {
if(user_io_dip_switch1())
tos_debugf("ACSI: direct read %ld", lba);
MMC_Read(lba++, sector_buffer);
tos_debugf("ACSI: direct read %ld", lba);
MMC_ReadMultiple(lba, 0, length);
} else {
FileSeek(&hdd_image[target], lba++, SEEK_SET);
FileRead(&hdd_image[target], sector_buffer);
FileSeek(&hdd_image[target], lba, SEEK_SET);
FileReadEx(&hdd_image[target], 0, length);
}
mist2_spi_set_speed(spi_speed);
// hexdump(dma_buffer, 32, 0);
if (sector_buffer) mist_memory_write_block(sector_buffer);
length--;
} else {
while(length) {
if(hdd_direct && target == 0) {
if(user_io_dip_switch1())
tos_debugf("ACSI: direct read %ld", lba);
MMC_Read(lba++, dma_buffer);
} else {
FileSeek(&hdd_image[target], lba++, SEEK_SET);
FileRead(&hdd_image[target], dma_buffer);
}
// hexdump(dma_buffer, 32, 0);
mist_memory_write_block(dma_buffer);
length--;
}
}
DISKLED_OFF;
dma_ack(0x00);