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ide: Convert PIO read/write commands to ide_cmd_table handler 

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Kevin Wolf 2013-06-18 10:26:01 +02:00 committed by Stefan Hajnoczi
parent adf3a2c46e
commit 0e6498ed65
1 changed files with 50 additions and 43 deletions
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93
hw/ide/core.c
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@ -1110,6 +1110,48 @@ static bool cmd_write_multiple(IDEState *s, uint8_t cmd)
return false;
}
static bool cmd_read_pio(IDEState *s, uint8_t cmd)
{
bool lba48 = (cmd == WIN_READ_EXT);
if (s->drive_kind == IDE_CD) {
ide_set_signature(s); /* odd, but ATA4 8.27.5.2 requires it */
ide_abort_command(s);
return true;
}
if (!s->bs) {
ide_abort_command(s);
return true;
}
ide_cmd_lba48_transform(s, lba48);
s->req_nb_sectors = 1;
ide_sector_read(s);
return false;
}
static bool cmd_write_pio(IDEState *s, uint8_t cmd)
{
bool lba48 = (cmd == WIN_WRITE_EXT);
if (!s->bs) {
ide_abort_command(s);
return true;
}
ide_cmd_lba48_transform(s, lba48);
s->req_nb_sectors = 1;
s->status = SEEK_STAT | READY_STAT;
ide_transfer_start(s, s->io_buffer, 512, ide_sector_write);
s->media_changed = 1;
return false;
}
#define HD_OK (1u << IDE_HD)
#define CD_OK (1u << IDE_CD)
#define CFA_OK (1u << IDE_CFATA)
@ -1130,19 +1172,19 @@ static const struct {
[WIN_DSM] = { cmd_data_set_management, ALL_OK },
[WIN_DEVICE_RESET] = { NULL, CD_OK },
[WIN_RECAL] = { cmd_nop, HD_CFA_OK | SET_DSC},
[WIN_READ] = { NULL, ALL_OK },
[WIN_READ_ONCE] = { NULL, ALL_OK },
[WIN_READ_EXT] = { NULL, HD_CFA_OK },
[WIN_READ] = { cmd_read_pio, ALL_OK },
[WIN_READ_ONCE] = { cmd_read_pio, ALL_OK },
[WIN_READ_EXT] = { cmd_read_pio, HD_CFA_OK },
[WIN_READDMA_EXT] = { NULL, HD_CFA_OK },
[WIN_READ_NATIVE_MAX_EXT] = { NULL, HD_CFA_OK },
[WIN_MULTREAD_EXT] = { cmd_read_multiple, HD_CFA_OK },
[WIN_WRITE] = { NULL, HD_CFA_OK },
[WIN_WRITE_ONCE] = { NULL, HD_CFA_OK },
[WIN_WRITE_EXT] = { NULL, HD_CFA_OK },
[WIN_WRITE] = { cmd_write_pio, HD_CFA_OK },
[WIN_WRITE_ONCE] = { cmd_write_pio, HD_CFA_OK },
[WIN_WRITE_EXT] = { cmd_write_pio, HD_CFA_OK },
[WIN_WRITEDMA_EXT] = { NULL, HD_CFA_OK },
[CFA_WRITE_SECT_WO_ERASE] = { NULL, CFA_OK },
[CFA_WRITE_SECT_WO_ERASE] = { cmd_write_pio, CFA_OK },
[WIN_MULTWRITE_EXT] = { cmd_write_multiple, HD_CFA_OK },
[WIN_WRITE_VERIFY] = { NULL, HD_CFA_OK },
[WIN_WRITE_VERIFY] = { cmd_write_pio, HD_CFA_OK },
[WIN_VERIFY] = { cmd_verify, HD_CFA_OK | SET_DSC },
[WIN_VERIFY_ONCE] = { cmd_verify, HD_CFA_OK | SET_DSC },
[WIN_VERIFY_EXT] = { cmd_verify, HD_CFA_OK | SET_DSC },
@ -1235,41 +1277,6 @@ void ide_exec_cmd(IDEBus *bus, uint32_t val)
}
switch(val) {
case WIN_READ_EXT:
lba48 = 1;
/* fall through */
case WIN_READ:
case WIN_READ_ONCE:
if (s->drive_kind == IDE_CD) {
ide_set_signature(s); /* odd, but ATA4 8.27.5.2 requires it */
goto abort_cmd;
}
if (!s->bs) {
goto abort_cmd;
}
ide_cmd_lba48_transform(s, lba48);
s->req_nb_sectors = 1;
ide_sector_read(s);
break;
case WIN_WRITE_EXT:
lba48 = 1;
/* fall through */
case WIN_WRITE:
case WIN_WRITE_ONCE:
case CFA_WRITE_SECT_WO_ERASE:
case WIN_WRITE_VERIFY:
if (!s->bs) {
goto abort_cmd;
}
ide_cmd_lba48_transform(s, lba48);
s->error = 0;
s->status = SEEK_STAT | READY_STAT;
s->req_nb_sectors = 1;
ide_transfer_start(s, s->io_buffer, 512, ide_sector_write);
s->media_changed = 1;
break;
case WIN_READDMA_EXT:
lba48 = 1;
/* fall through */