static void
aic787X_cable_detect(struct ahc_softc *ahc, int *internal50_present,
int *internal68_present, int *externalcable_present,
int *eeprom_present)
{
uint8_t brdctl;
/*
* First read the status of our cables.
* Set the rom bank to 0 since the
* bank setting serves as a multiplexor
* for the cable detection logic.
* BRDDAT5 controls the bank switch.
*/
write_brdctl(ahc, 0);
/*
* Now read the state of the internal
* connectors. BRDDAT6 is INT50 and
* BRDDAT7 is INT68.
*/
brdctl = read_brdctl(ahc);
*internal50_present = (brdctl & BRDDAT6) ? 0 : 1;
*internal68_present = (brdctl & BRDDAT7) ? 0 : 1;
/*
* Set the rom bank to 1 and determine
* the other signals.
*/
write_brdctl(ahc, BRDDAT5);
/*
* Now read the state of the external
* connectors. BRDDAT6 is EXT68 and
* BRDDAT7 is EPROMPS.
*/
brdctl = read_brdctl(ahc);
*externalcable_present = (brdctl & BRDDAT6) ? 0 : 1;
*eeprom_present = (brdctl & BRDDAT7) ? 1 : 0;
}
static void
aic787X_cable_detect(struct ahc_softc *ahc, int *internal50_present,
int *internal68_present, int *externalcable_present,
int *eeprom_present)
{
uint8_t brdctl;
write_brdctl(ahc, 0);
brdctl = read_brdctl(ahc);
*internal50_present = (brdctl & BRDDAT6) ? 0 : 1;
*internal68_present = (brdctl & BRDDAT7) ? 0 : 1;
write_brdctl(ahc, BRDDAT5);
brdctl = read_brdctl(ahc);
*externalcable_present = (brdctl & BRDDAT6) ? 0 : 1;
*eeprom_present = (brdctl & BRDDAT7) ? 1 : 0;
}
static void
ahc_new_term_detect(struct ahc_softc *ahc, int *enableSEC_low,
int *enableSEC_high, int *enablePRI_low,
int *enablePRI_high, int *eeprom_present)
{
uint8_t brdctl;
brdctl = read_brdctl(ahc);
*eeprom_present = brdctl & BRDDAT7;
*enableSEC_high = (brdctl & BRDDAT6);
*enableSEC_low = (brdctl & BRDDAT5);
*enablePRI_high = (brdctl & BRDDAT4);
*enablePRI_low = (brdctl & BRDDAT3);
}
static void
ahc_new_term_detect(struct ahc_softc *ahc, int *enableSEC_low,
int *enableSEC_high, int *enablePRI_low,
int *enablePRI_high, int *eeprom_present)
{
uint8_t brdctl;
/*
* BRDDAT7 = Eeprom
* BRDDAT6 = Enable Secondary High Byte termination
* BRDDAT5 = Enable Secondary Low Byte termination
* BRDDAT4 = Enable Primary high byte termination
* BRDDAT3 = Enable Primary low byte termination
*/
brdctl = read_brdctl(ahc);
*eeprom_present = brdctl & BRDDAT7;
*enableSEC_high = (brdctl & BRDDAT6);
*enableSEC_low = (brdctl & BRDDAT5);
*enablePRI_high = (brdctl & BRDDAT4);
*enablePRI_low = (brdctl & BRDDAT3);
}
