iopin_85xx.h

u-boot-1.1.6 源码包

/*
 * MPC85xx I/O port pin manipulation functions
 */

#ifndef _ASM_IOPIN_85xx_H_
#define _ASM_IOPIN_85xx_H_

#include <linux/types.h>
#include <asm/immap_85xx.h>

#ifdef __KERNEL__

typedef struct {
	u_char port:2;		/* port number (A=0, B=1, C=2, D=3) */
	u_char pin:5;		/* port pin (0-31) */
	u_char flag:1;		/* for whatever */
} iopin_t;

#define IOPIN_PORTA	0
#define IOPIN_PORTB	1
#define IOPIN_PORTC	2
#define IOPIN_PORTD	3

extern __inline__ void iopin_set_high (iopin_t * iopin)
{
	volatile uint *datp = &((immap_t *) CFG_IMMR)->im_cpm.im_cpm_iop.pdata;
	datp[iopin->port * 8] |= (1 << (31 - iopin->pin));
}

extern __inline__ void iopin_set_low (iopin_t * iopin)
{
	volatile uint *datp = &((immap_t *) CFG_IMMR)->im_cpm.im_cpm_iop.pdata;
	datp[iopin->port * 8] &= ~(1 << (31 - iopin->pin));
}

extern __inline__ uint iopin_is_high (iopin_t * iopin)
{
	volatile uint *datp = &((immap_t *) CFG_IMMR)->im_cpm.im_cpm_iop.pdata;
	return (datp[iopin->port * 8] >> (31 - iopin->pin)) & 1;
}

extern __inline__ uint iopin_is_low (iopin_t * iopin)
{
	volatile uint *datp = &((immap_t *) CFG_IMMR)->im_cpm.im_cpm_iop.pdata;
	return ((datp[iopin->port * 8] >> (31 - iopin->pin)) & 1) ^ 1;
}

extern __inline__ void iopin_set_out (iopin_t * iopin)
{
	volatile uint *dirp = &((immap_t *) CFG_IMMR)->im_cpm.im_cpm_iop.pdira;
	dirp[iopin->port * 8] |= (1 << (31 - iopin->pin));
}

extern __inline__ void iopin_set_in (iopin_t * iopin)
{
	volatile uint *dirp = &((immap_t *) CFG_IMMR)->im_cpm.im_cpm_iop.pdira;
	dirp[iopin->port * 8] &= ~(1 << (31 - iopin->pin));
}

extern __inline__ uint iopin_is_out (iopin_t * iopin)
{
	volatile uint *dirp = &((immap_t *) CFG_IMMR)->im_cpm.im_cpm_iop.pdira;
	return (dirp[iopin->port * 8] >> (31 - iopin->pin)) & 1;
}

extern __inline__ uint iopin_is_in (iopin_t * iopin)
{
	volatile uint *dirp = &((immap_t *) CFG_IMMR)->im_cpm.im_cpm_iop.pdira;
	return ((dirp[iopin->port * 8] >> (31 - iopin->pin)) & 1) ^ 1;
}

extern __inline__ void iopin_set_odr (iopin_t * iopin)
{
	volatile uint *odrp = &((immap_t *) CFG_IMMR)->im_cpm.im_cpm_iop.podra;
	odrp[iopin->port * 8] |= (1 << (31 - iopin->pin));
}

extern __inline__ void iopin_set_act (iopin_t * iopin)
{
	volatile uint *odrp = &((immap_t *) CFG_IMMR)->im_cpm.im_cpm_iop.podra;
	odrp[iopin->port * 8] &= ~(1 << (31 - iopin->pin));
}

extern __inline__ uint iopin_is_odr (iopin_t * iopin)
{
	volatile uint *odrp = &((immap_t *) CFG_IMMR)->im_cpm.im_cpm_iop.podra;
	return (odrp[iopin->port * 8] >> (31 - iopin->pin)) & 1;
}

extern __inline__ uint iopin_is_act (iopin_t * iopin)
{
	volatile uint *odrp = &((immap_t *) CFG_IMMR)->im_cpm.im_cpm_iop.podra;
	return ((odrp[iopin->port * 8] >> (31 - iopin->pin)) & 1) ^ 1;
}

extern __inline__ void iopin_set_ded (iopin_t * iopin)
{
	volatile uint *parp = &((immap_t *) CFG_IMMR)->im_cpm.im_cpm_iop.ppara;
	parp[iopin->port * 8] |= (1 << (31 - iopin->pin));
}

extern __inline__ void iopin_set_gen (iopin_t * iopin)
{
	volatile uint *parp = &((immap_t *) CFG_IMMR)->im_cpm.im_cpm_iop.ppara;
	parp[iopin->port * 8] &= ~(1 << (31 - iopin->pin));
}

extern __inline__ uint iopin_is_ded (iopin_t * iopin)
{
	volatile uint *parp = &((immap_t *) CFG_IMMR)->im_cpm.im_cpm_iop.ppara;
	return (parp[iopin->port * 8] >> (31 - iopin->pin)) & 1;
}

extern __inline__ uint iopin_is_gen (iopin_t * iopin)
{
	volatile uint *parp = &((immap_t *) CFG_IMMR)->im_cpm.im_cpm_iop.ppara;
	return ((parp[iopin->port * 8] >> (31 - iopin->pin)) & 1) ^ 1;
}

extern __inline__ void iopin_set_opt2 (iopin_t * iopin)
{
	volatile uint *sorp = &((immap_t *) CFG_IMMR)->im_cpm.im_cpm_iop.psora;
	sorp[iopin->port * 8] |= (1 << (31 - iopin->pin));
}

extern __inline__ void iopin_set_opt1 (iopin_t * iopin)
{
	volatile uint *sorp = &((immap_t *) CFG_IMMR)->im_cpm.im_cpm_iop.psora;
	sorp[iopin->port * 8] &= ~(1 << (31 - iopin->pin));
}

extern __inline__ uint iopin_is_opt2 (iopin_t * iopin)
{
	volatile uint *sorp = &((immap_t *) CFG_IMMR)->im_cpm.im_cpm_iop.psora;
	return (sorp[iopin->port * 8] >> (31 - iopin->pin)) & 1;
}

extern __inline__ uint iopin_is_opt1 (iopin_t * iopin)
{
	volatile uint *sorp = &((immap_t *) CFG_IMMR)->im_cpm.im_cpm_iop.psora;
	return ((sorp[iopin->port * 8] >> (31 - iopin->pin)) & 1) ^ 1;
}

#endif /* __KERNEL__ */

#endif /* _ASM_IOPIN_85xx_H_ */