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IDE/ATAPI SRST fixes - fixes ATAPI CD-ROM detection on the Nec PowerMate V.

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This commit is contained in:
OBattler 2023-12-14 21:19:58 +01:00
parent 2a2432207a
commit 5221a77dbf
1 changed files with 21 additions and 8 deletions
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29
src/disk/hdc_ide.c
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@ -1389,7 +1389,13 @@ ide_write_devctl(UNUSED(uint16_t addr), uint8_t val, void *priv)
} else {
/* Currently active device is 1, simply reset the status and the active device. */
dev_reset(ide);
ide->tf->atastat = DRDY_STAT | DSC_STAT;
if (ide->type == IDE_ATAPI) {
/* Non-early ATAPI devices have DRDY clear after SRST. */
ide->tf->atastat = 0;
if (IDE_ATAPI_IS_EARLY)
ide->tf->atastat |= DRDY_STAT;
} else
ide->tf->atastat = DRDY_STAT | DSC_STAT;
ide->tf->error = 1;
dev->cur_dev &= ~1;
ch = dev->cur_dev;
@ -1788,7 +1794,7 @@ ide_read_data(ide_t *ide, int length)
double xfer_us;
#if defined(ENABLE_IDE_LOG) && (ENABLE_IDE_LOG == 2)
ide_log("ide_read_data(): ch = %i, board = %i, type = %i\n", ch,
ide_log("ide_read_data(): ch = %i, board = %i, type = %i\n", ide->channel,
ide->board, ide->type);
#endif
@ -1868,7 +1874,8 @@ ide_status(ide_t *ide, ide_t *ide_other, int ch)
/* On real hardware, a slave with a present master always
returns a status of 0x00.
Confirmed by the ATA-3 and ATA-4 specifications. */
ret = 0x00;
// ret = 0x00;
ret = 0x01;
} else {
ret = ide->tf->atastat;
if (ide->type == IDE_ATAPI)
@ -1948,8 +1955,8 @@ ide_readb(uint16_t addr, void *priv)
else
ret = ide->tf->cylinder >> 8;
#if defined(ENABLE_IDE_LOG) && (ENABLE_IDE_LOG == 2)
pclog("Cylinder high @ board %i, channel %i: ide->type = %i, "
"ret = %02X\n", ide->board, ide->channel, ide->type, ret);
ide_log("Cylinder high @ board %i, channel %i: ide->type = %i, "
"ret = %02X\n", ide->board, ide->channel, ide->type, ret);
#endif
break;
@ -2070,7 +2077,11 @@ ide_board_callback(void *priv)
ide_log("ide_board_callback(%i)\n", dev->cur_dev >> 1);
for (uint8_t i = 0; i < 2; i++) {
dev->cur_dev &= ~1;
/* Reset the devices in reverse so if there's a slave without a master,
its copy of the master's task file gets reset first. */
for (int8_t i = 1; i >= 0; i--) {
ide = dev->ide[i];
if (ide->type == IDE_ATAPI) {
ide->tf->atastat = 0;
@ -2080,8 +2091,6 @@ ide_board_callback(void *priv)
ide->tf->atastat = DRDY_STAT | DSC_STAT;
}
dev->cur_dev &= ~1;
ide = dev->ide[0];
if (dev->diag) {
dev->diag = 0;
@ -2287,6 +2296,9 @@ ide_callback(void *priv)
case WIN_WRITE:
case WIN_WRITE_NORETRY:
#ifdef ENABLE_IDE_LOG
off64_t s = ide_get_sector(ide);
#endif
if (ide->type == IDE_ATAPI)
err = ABRT_ERR;
else if (!ide->tf->lba && (ide->cfg_spt == 0))
@ -2305,6 +2317,7 @@ ide_callback(void *priv)
ui_sb_update_icon(SB_HDD | hdd[ide->hdd_num].bus, 0);
}
}
ide_log("Write: %02X, %i, %08X, %" PRIi64 "\n", err, ide->hdd_num, ide->lba_addr, s);
break;
case WIN_WRITE_DMA: