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[mii] Add mii_dump() to dump all MII registers 

Signed-off-by: Michael Brown <mcb30@ipxe.org>
pull/17/head
Michael Brown 2014-03-10 12:21:54 +00:00
parent 42bf3b9aa9
commit 9d615539f0
1 changed files with 31 additions and 0 deletions
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31
src/include/ipxe/mii.h
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@ -78,6 +78,37 @@ mii_write ( struct mii_interface *mii, unsigned int reg, unsigned int data ) {
return mii->op->write ( mii, reg, data ); return mii->op->write ( mii, reg, data );
} }
/**
* Dump MII registers (for debugging)
*
* @v mii MII interface
*/
static inline void
mii_dump ( struct mii_interface *mii ) {
unsigned int i;
int data;
/* Do nothing unless debug output is enabled */
if ( ! DBG_LOG )
return;
/* Dump basic MII register set */
for ( i = 0 ; i < 16 ; i++ ) {
if ( ( i % 8 ) == 0 ) {
DBGC ( mii, "MII %p registers %02x-%02x:",
mii, i, ( i + 7 ) );
}
data = mii_read ( mii, i );
if ( data >= 0 ) {
DBGC ( mii, " %04x", data );
} else {
DBGC ( mii, " XXXX" );
}
if ( ( i % 8 ) == 7 )
DBGC ( mii, "\n" );
}
}
/** Maximum time to wait for a reset, in milliseconds */ /** Maximum time to wait for a reset, in milliseconds */
#define MII_RESET_MAX_WAIT_MS 500 #define MII_RESET_MAX_WAIT_MS 500