adconvert.h

linux下ad7888使用spi口驱动程序代码

#ifndef _ADC_H_
#define _ADC_H_

/*
 * Macros to help debugging
 */
#undef PDEBUG			/* undef it, just in case */
#ifdef ADC_DEBUG
#  ifdef __KERNEL__
     /* This one if debugging is on, and kernel space */
#    define PDEBUG(fmt, args...) printk( KERN_DEBUG "ADC: " fmt, ## args )
#  else
     /* This one for user space */
     define PDEBUG(fmt, args...) fptrintf(stderr, fmt, ## args)
#  endif
#else
#  define PDEBUG(fmt, args...)  /* not dubugging: nothing */
#endif

#undef PDEBUGG
#define PDEBUGG(fmt, args...)   /* nothing: it's a placeholder */

#ifndef ADC_MAJOR
#define ADC_MAJOR	0	/* dynamic major by default */
#endif

#ifndef ADC_NR_DEVS
#define ADC_NR_DEVS	4	/* ADC through adc3 */
#endif


/*
 * The different configurable parameters
 */
extern int adc_major;		/* main.c */
extern int adc_nr_devs;

unsigned char	ADCRxdata[225];
unsigned char	ADCTxdata[225];
unsigned char	*dbuf;

/*
 * 
 */
static unsigned int *r_SPSTA0;
static unsigned int *r_SPPRE0;
static unsigned int *r_SPCON0;
static unsigned int *r_SPTDAT0;
static unsigned int *r_SPRDAT0;

static unsigned int *r_GPECON;
static unsigned int *r_GPEUP;

static unsigned int *r_GPHCON;
static unsigned int *r_GPHUP;
static unsigned int *r_GPHDAT;


/*#if 0*/
void adc_convert( void );
static void adc_spi_init( void );
static void adc_tx_data(unsigned char data);
void spi_poll_done( void );

void adc_address_map( void );
void adc_cancel_add_map( void );

/*#endif*/

static ssize_t adc_read( struct file *filp, char __user *buf, size_t count, loff_t *f_ops );
static ssize_t adc_write( struct file *filp, const char __user *buf, size_t count,
			loff_t *f_ops );
static int adc_release( struct inode *inode, struct file *filp );
static int adc_open( struct inode *inode, struct file *filp );

/*
// I/O PORT 
#define rGPECON			(*(volatile unsigned *)0x56000040)
#define rGPEDAT			(*(volatile unsigned *)0x56000044)
#define rGPEUP			(*(volatile unsigned *)0x56000048)

#define rGPHCON			(*(volatile unsigned *)0x56000070)
#define rGPHDAT			(*(volatile unsigned *)0x56000074)
#define rGPHUP			(*(volatile unsigned *)0x56000078)

// ADC Control Register
#define rADCCON			(*(volatile unsigned *)0x58000000)
#define rADCTSC			(*(volatile unsigned *)0x58000004)
#define rADCDLY			(*(volatile unsigned *)0x58000008)
#define rADCDAT0		(*(volatile unsigned *)0x5800000C)
#define rADCDAT1		(*(volatile unsigned *)0x58000010)


// SPI Control Register
#define rSPCON0			(*(volatile unsigned *)0x59000000)
#define rSPSTA0			(*(volatile unsigned *)0x59000004)
#define rSPPIN0			(*(volatile unsigned *)0x59000008)
#define rSPPRE0			(*(volatile unsigned *)0x5900000C)
#define rSPTDAT0		(*(volatile unsigned *)0x59000010)
#define rSPRDAT0		(*(volatile unsigned *)0x59000014)
#define rSPCON1			(*(volatile unsigned *)0x59000020)
#define rSPSTA1			(*(volatile unsigned *)0x59000024)
#define rSPPIN1			(*(volatile unsigned *)0x59000028)
#define rSPPRE1			(*(volatile unsigned *)0x5900002C)
#define rSPTDAT1		(*(volatile unsigned *)0x59000030)
#define rSPRDAT1		(*(volatile unsigned *)0x59000034)
*/

// I/O PORT 
#define rGPECON                 0x56000040
#define rGPEDAT                 0x56000044
#define rGPEUP                  0x56000048

#define rGPHCON                 0x56000070
#define rGPHDAT                 0x56000074
#define rGPHUP                  0x56000078

// ADC Control Register
#define rADCCON                 0x58000000
#define rADCTSC                 0x58000004
#define rADCDLY                 0x58000008
#define rADCDAT0                0x5800000C
#define rADCDAT1                0x58000010


// SPI Control Register
#define rSPCON0                 0x59000000
#define rSPSTA0                 0x59000004
#define rSPPIN0                 0x59000008
#define rSPPRE0                 0x5900000C
#define rSPTDAT0                0x59000010
#define rSPRDAT0                0x59000014
#define rSPCON1                 0x59000020
#define rSPSTA1                 0x59000024
#define rSPPIN1                 0x59000028
#define rSPPRE1                 0x5900002C
#define rSPTDAT1                0x59000030
#define rSPRDAT1                0x59000034



#endif	/* _ADC_H_ */