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ata: Parameterize the SMART query, add support to primary ATA driver

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There are numerous sub-commands, this makes it possible to call the others.

Also in this patch is the ability for the "default" ATA driver to
query smart data too

Change-Id: Ie3aaf9e0b2d7a5d25d09dea34e4f10ee29047e1b
This commit is contained in:
Solomon Peachy 2025-09-16 09:48:56 -04:00
parent e09829a71d
commit c307fd5525
5 changed files with 56 additions and 13 deletions
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39
firmware/drivers/ata.c
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@ -730,6 +730,45 @@ static int STORAGE_INIT_ATTR ata_hard_reset(void)
return ret;
}
#ifdef HAVE_ATA_SMART
static int ata_smart(uint16_t *buf, uint8_t cmd)
{
int i;
ATA_OUT8(ATA_SELECT, ata_device);
if(!wait_for_rdy()) {
DEBUGF("identify() - not RDY\n");
return -1;
}
ATA_OUT8(&ATA_PIO_FED, cmd);
ATA_OUT8(&ATA_PIO_HCYL, 0xc2);
ATA_OUT8(&ATA_PIO_LCYL, 0x4f);
ATA_OUT8(ATA_SELECT, SELECT_LBA | ata_device);
ATA_OUT8(ATA_COMMAND, CMD_SMART);
if (!wait_for_start_of_transfer())
{
DEBUGF("identify() - CMD failed\n");
return -2;
}
for (i = 0 ; i < 256 ; i++) {
/* The SMART words are already swapped, so we need to treat
this info differently that normal sector data */
buf[i] = ATA_SWAP_IDENTIFY(ATA_IN16(ATA_DATA));
}
}
int ata_read_smart(struct ata_smart_values* smart_data, uint8_t cmd)
{
mutex_lock(&ata_mutex);
int rc = ata_smart((uint16_t*)smart_data, cmd);
mutex_unlock(&ata_mutex);
return rc;
}
#endif /* HAVE_ATA_SMART */
// not putting this into STORAGE_INIT_ATTR, as ATA spec recommends to
// re-read identify_info after soft reset. So we'll do that.
static int identify(void)