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TCC78x: Make the NAND driver yield during reads (thanks to bertrik for spotting the obvious error that caused this to crash until now). Fixes the D2 'delay before playback starts' bug.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21465 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Rob Purchase 2009-06-22 18:06:08 +00:00
parent 4b831753e7
commit 67c86a76d9
1 changed files with 11 additions and 0 deletions
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11
firmware/target/arm/ata-nand-telechips.c
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@ -40,6 +40,9 @@ long last_disk_activity = -1;
/** static, private data **/ /** static, private data **/
static bool initialized = false; static bool initialized = false;
static long next_yield = 0;
#define MIN_YIELD_PERIOD 1000
static struct mutex ata_mtx SHAREDBSS_ATTR; static struct mutex ata_mtx SHAREDBSS_ATTR;
#if defined(COWON_D2) || defined(IAUDIO_7) #if defined(COWON_D2) || defined(IAUDIO_7)
@ -714,6 +717,14 @@ int nand_read_sectors(IF_MV2(int drive,) unsigned long start, int incount,
return -1; return -1;
} }
#ifdef CPU_TCC780X /* 77x doesn't have USEC_TIMER yet */
if (TIME_AFTER(USEC_TIMER, next_yield))
{
next_yield = USEC_TIMER + MIN_YIELD_PERIOD;
yield();
}
#endif
inbuf += SECTOR_SIZE; inbuf += SECTOR_SIZE;
incount--; incount--;
secmod++; secmod++;