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IDE: Hard disks now have a valid default configuration, per ATA-2 and later.

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This commit is contained in:
OBattler
2024-05-09 18:02:27 +02:00
parent a4fe16c9a0
commit 72ff4501f7
2 changed files with 37 additions and 12 deletions
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47
src/disk/hdc_ide.c
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@@ -516,24 +516,29 @@ ide_hd_identify(const ide_t *ide)
{
char device_identify[9] = { '8', '6', 'B', '_', 'H', 'D', '0', '0', 0 };
const ide_bm_t *bm = ide_boards[ide->board]->bm;
const uint32_t d_spt = ide->spt;
uint64_t full_size = (((uint64_t) hdd[ide->hdd_num].tracks) *
hdd[ide->hdd_num].hpc * hdd[ide->hdd_num].spt);
uint32_t d_hpc;
uint32_t d_tracks;
device_identify[6] = (ide->hdd_num / 10) + 0x30;
device_identify[7] = (ide->hdd_num % 10) + 0x30;
ide_log("IDE Identify: %s\n", device_identify);
if (ide->hpc <= 16) {
uint32_t d_hpc = ide->hpc;
uint32_t d_spt = ide->spt;
uint32_t d_tracks;
if ((ide->hpc <= 16) && (ide->spt <= 63)) {
/* HPC <= 16, report as needed. */
d_tracks = ide->tracks;
d_hpc = ide->hpc;
} else {
/* HPC > 16, convert to 16 HPC. */
d_hpc = 16;
d_tracks = (ide->tracks * ide->hpc) / 16;
if (ide->hpc > 16)
d_hpc = 16;
if (ide->spt > 63)
d_spt = 63;
d_tracks = (ide->tracks * ide->hpc * ide->spt) / (16 * 63);
if (d_tracks > 16383)
d_tracks = 16383;
}
/* Specify default CHS translation */
@@ -579,7 +584,7 @@ ide_hd_identify(const ide_t *ide)
*/
ide->buffer[53] = 1;
if (ide->cfg_spt != 0) {
if (ide->params_specified) {
ide->buffer[54] = (full_size / ide->cfg_hpc) / ide->cfg_spt;
ide->buffer[55] = ide->cfg_hpc;
ide->buffer[56] = ide->cfg_spt;
@@ -2427,10 +2432,12 @@ ide_callback(void *priv)
if (ide->type == IDE_ATAPI)
err = ABRT_ERR;
else {
if (ide->cfg_spt == 0) {
/* Only accept after RESET or DIAG. */
/* Only accept after RESET or DIAG. */
if (ide->params_specified) {
ide->cfg_spt = ide->tf->secount;
ide->cfg_hpc = ide->tf->head + 1;
ide->params_specified = 1;
}
ide->command = 0x00;
ide->tf->atastat = DRDY_STAT | DSC_STAT;
@@ -2744,8 +2751,26 @@ ide_board_setup(const int board)
dev->tf->error = 1;
if (dev->type != IDE_HDD)
dev->cfg_spt = dev->cfg_hpc = 0;
if (dev->type == IDE_HDD)
if (dev->type == IDE_HDD) {
dev->blocksize = hdd[dev->hdd_num].max_multiple_block;
/* Calculate the default heads and sectors. */
uint32_t d_hpc = dev->hpc;
uint32_t d_spt = dev->spt;
if ((dev->hpc > 16) || (dev->spt > 63)) {
/* HPC > 16, convert to 16 HPC. */
if (dev->hpc > 16)
d_hpc = 16;
if (dev->spt > 63)
d_spt = 63;
}
dev->cfg_spt = d_spt;
dev->cfg_hpc = d_hpc;
}
dev->params_specified = 0;
}
}

2
src/include/86box/hdc_ide.h
View File

@@ -82,7 +82,7 @@ typedef struct ide_s {
uint8_t selected;
uint8_t command;
uint8_t head;
uint8_t pad;
uint8_t params_specified;
int type;
int board;
int irqstat;