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/* GRCTM - CCSDS Time Manager - register driver interface.
*
* COPYRIGHT (c) 2009.
* Cobham Gaisler AB
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*/
#ifndef __GRCTM_H__
#define __GRCTM_H__
#define DAT0_IRQ 0x1
#define DAT1_IRQ 0x2
#define DAT2_IRQ 0x4
#define PULSE0_IRQ 0x10
#define PULSE1_IRQ 0x20
#define PULSE2_IRQ 0x40
#define PULSE3_IRQ 0x80
#define PULSE4_IRQ 0x100
#define PULSE5_IRQ 0x200
#define PULSE6_IRQ 0x400
#define PULSE7_IRQ 0x800
struct grctm_regs {
volatile unsigned int grr;
volatile unsigned int gcr;
volatile unsigned int gsr;
volatile unsigned int unused[2];
volatile unsigned int pfr;
volatile unsigned int etcr;
volatile unsigned int etfr;
volatile unsigned int dcr0;
volatile unsigned int dfr0;
volatile unsigned int dcr1;
volatile unsigned int dfr1;
volatile unsigned int dcr2;
volatile unsigned int dfr2;
volatile unsigned int stcr;
volatile unsigned int stfr;
volatile unsigned int pdr[8];
volatile unsigned int pimsr;
volatile unsigned int pimr;
volatile unsigned int pisr;
volatile unsigned int pir;
volatile unsigned int imr;
volatile unsigned int picr;
volatile unsigned int unused1[2];
volatile unsigned int etir;
volatile unsigned int fsir;
volatile unsigned int serconf;
volatile unsigned int unused2;
volatile unsigned int twsc;
volatile unsigned int twadj;
volatile unsigned int twtx;
volatile unsigned int twrx;
};
struct grctm_stats {
/* IRQ Stats */
unsigned int nirqs;
unsigned int pulse;
};
/* Function ISR callback prototype */
typedef void (*grctm_isr_t)(unsigned int pimr, void *data);
/* Open a GRCTM device by minor number. */
extern void *grctm_open(int minor);
/* Close a previously opened GRCTM device */
extern void grctm_close(void *spwcuc);
/* Hardware Reset of GRCTM */
extern int grctm_reset(void *grctm);
/* Enable Interrupts at Interrupt controller */
extern void grctm_int_enable(void *grctm);
/* Disable Interrupts at Interrupt controller */
extern void grctm_int_disable(void *grctm);
/* Clear Statistics gathered by the driver */
extern void grctm_clr_stats(void *grctm);
/* Get Statistics gathered by the driver */
extern void grctm_get_stats(void *grctm, struct grctm_stats *stats);
/* Register an Interrupt handler and custom data, the function call is
* removed by setting func to NULL.
*/
extern void grctm_int_register(void *grctm, grctm_isr_t func, void *data);
/* Enable external synchronisation (from spwcuc) */
extern void grctm_enable_ext_sync(void *grctm);
/* Disable external synchronisation (from spwcuc) */
extern void grctm_disable_ext_sync(void *grctm);
/* Enable TimeWire synchronisation */
extern void grctm_enable_tw_sync(void *grctm);
/* Disable TimeWire synchronisation */
extern void grctm_disable_tw_sync(void *grctm);
/* Disable frequency synthesizer from driving ET */
extern void grctm_disable_fs(void *grctm);
/* Enable frequency synthesizer to drive ET */
extern void grctm_enable_fs(void *grctm);
/* Return elapsed coarse time */
extern unsigned int grctm_get_et_coarse(void *grctm);
/* Return elapsed fine time */
extern unsigned int grctm_get_et_fine(void *grctm);
/* Return elapsed time (coarse and fine) */
extern unsigned long long grctm_get_et(void *grctm);
/* Return 1 if specified datation has been latched */
extern int grctm_is_dat_latched(void *grctm, int dat);
/* Set triggering edge of datation input */
extern void grctm_set_dat_edge(void *grctm, int dat, int edge);
/* Return latched datation coarse time */
extern unsigned int grctm_get_dat_coarse(void *grctm, int dat);
/* Return latched datation fine time */
extern unsigned int grctm_get_dat_fine(void *grctm, int dat);
/* Return latched datation ET */
extern unsigned long long grctm_get_dat_et(void *grctm, int dat);
/* Return current pulse configuration */
extern unsigned int grctm_get_pulse_reg(void *grctm, int pulse);
/* Set pulse register */
extern void grctm_set_pulse_reg(void *grctm, int pulse, unsigned int val);
/* Configure pulse: pp = period, pw = width, pl = level, en = enable */
extern void grctm_cfg_pulse(void *grctm, int pulse, int pp, int pw, int pl, int en);
/* Enable pulse output */
extern void grctm_enable_pulse(void *grctm, int pulse);
/* Disable pulse output */
extern void grctm_disable_pulse(void *grctm, int pulse);
/* Clear interrupts */
extern void grctm_clear_irqs(void *grctm, int irqs);
/* Enable interrupts */
extern void grctm_enable_irqs(void *grctm, int irqs);
/* Set Frequency synthesizer increment */
void grctm_set_fs_incr(void *grctm, int incr);
/* Set ET increment */
void grctm_set_et_incr(void *grctm, int incr);
/* Get register base address */
struct grctm_regs *grctm_get_regs(void *grctm);
/* Register the GRCTM driver to Driver Manager */
extern void grctm_register(void);
#endif
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