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better place and method for the spinup wait code, still I'd welcome comments on this

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@3815 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Jörg Hohensohn 2003-07-08 06:33:30 +00:00
parent f937912b5c
commit adef8fb17e
1 changed files with 14 additions and 11 deletions
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25
firmware/drivers/ata.c
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@ -424,19 +424,9 @@ extern void ata_flush(void)
static int check_registers(void) static int check_registers(void)
{ {
/* When starting from Flash, the disk is not yet ready when we get here. */ if ( ATA_STATUS & STATUS_BSY )
/* Crude first fix is to block and poll here for a while,
can we do better? */
int time = 0;
while ((ATA_STATUS & STATUS_BSY))
{
if (time >= HZ*10) /* timeout, disk is not coming up */
return -1; return -1;
sleep(HZ/10);
time += HZ/10;
};
ATA_NSECTOR = 0xa5; ATA_NSECTOR = 0xa5;
ATA_SECTOR = 0x5a; ATA_SECTOR = 0x5a;
ATA_LCYL = 0xaa; ATA_LCYL = 0xaa;
@ -819,6 +809,19 @@ int ata_init(void)
ata_enable(true); ata_enable(true);
if ( !initialized ) { if ( !initialized ) {
/* When starting from Flash, the disk is not yet ready when we get here. */
/* Crude first fix is to block and poll here for a while,
can we do better? */
int time = 0;
while ((ATA_STATUS & STATUS_BSY))
{
if (time >= HZ*10) /* timeout, disk is not coming up */
return -6;
sleep(HZ/10);
time += HZ/10;
};
if (master_slave_detect()) if (master_slave_detect())
return -1; return -1;