Differential D7771 Diff 20015 head/sys/dev/ppbus/ppb_base.c

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head/sys/dev/ppbus/ppb_base.c

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	* ppb_poll_bus()			* ppb_poll_bus()
	*			*
	* Polls the bus			* Polls the bus
	*			*
	* max is a delay in 10-milliseconds			* max is a delay in 10-milliseconds
	*/			*/
	int			int
	ppb_poll_bus(device_t bus, int max,			ppb_poll_bus(device_t bus, int max,
	char mask, char status, int how)			uint8_t mask, uint8_t status, int how)
	{			{
	struct ppb_data *ppb = DEVTOSOFTC(bus);			struct ppb_data *ppb = DEVTOSOFTC(bus);
	int i, j, error;			int i, j, error;
	char r;			uint8_t r;

	ppb_assert_locked(bus);			ppb_assert_locked(bus);

	/* try at least up to 10ms */			/* try at least up to 10ms */
	for (j = 0; j < ((how & PPB_POLL) ? max : 1); j++) {			for (j = 0; j < ((how & PPB_POLL) ? max : 1); j++) {
	for (i = 0; i < 10000; i++) {			for (i = 0; i < 10000; i++) {
	r = ppb_rstr(bus);			r = ppb_rstr(bus);
	DELAY(1);			DELAY(1);
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	/*			/*
	* ppb_get_status()			* ppb_get_status()
	*			*
	* Read the status register and update the status info			* Read the status register and update the status info
	*/			*/
	int			int
	ppb_get_status(device_t bus, struct ppb_status *status)			ppb_get_status(device_t bus, struct ppb_status *status)
	{			{
	register char r;			uint8_t r;

	ppb_assert_locked(bus);			ppb_assert_locked(bus);

	r = status->status = ppb_rstr(bus);			r = status->status = ppb_rstr(bus);

	status->timeout = r & TIMEOUT;			status->timeout = r & TIMEOUT;
	status->error = !(r & nFAULT);			status->error = !(r & nFAULT);
	status->select = r & SELECT;			status->select = r & SELECT;
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