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Experiment: enable ATA STANDBY when switching to USB mode

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@3668 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Linus Nielsen Feltzing 2003-05-10 01:55:23 +00:00
parent f70a41cdc6
commit 159d04d3f9
3 changed files with 29 additions and 0 deletions
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27
firmware/drivers/ata.c
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@ -503,6 +503,33 @@ static int ata_perform_sleep(void)
return ret;
}
int ata_standby(int time)
{
int ret = 0;
mutex_lock(&ata_mtx);
ATA_SELECT = ata_device;
if(!wait_for_rdy()) {
DEBUGF("ata_standby() - not RDY\n");
mutex_unlock(&ata_mtx);
return -1;
}
ATA_NSECTOR = ((time + 5) / 5) & 0xff; /* Round up to nearest 5 secs */
ATA_COMMAND = CMD_STANDBY;
if (!wait_for_rdy())
{
DEBUGF("ata_standby() - CMD failed\n");
ret = -2;
}
mutex_unlock(&ata_mtx);
return ret;
}
int ata_sleep(void)
{
queue_post(&ata_queue, Q_SLEEP, NULL);