s35390a.c File Reference

#include <sys/cdefs.h>
#include "opt_platform.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/clock.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <dev/iicbus/iicbus.h>
#include <dev/iicbus/iiconf.h>
#include "clock_if.h"
#include "iicbus_if.h"

Include dependency graph for s35390a.c:

Go to the source code of this file.

Data Structures
struct	s390rtc_softc

Macros
#define	S390_DEVNAME   "s35390a_rtc"
#define	S390_DEVCODE   0x6 /* 0110 */
#define	S390_ADDR   (S390_DEVCODE << 4)
#define	S390_STATUS1   (0 << 1)
#define	S390_STATUS2   (1 << 1)
#define	S390_REALTIME1   (2 << 1)
#define	S390_REALTIME2   (3 << 1)
#define	S390_INT1_1   (4 << 1)
#define	S390_INT1_2   (5 << 1)
#define	S390_CLOCKADJ   (6 << 1)
#define	S390_FREE   (7 << 1)
#define	S390_ST1_POC   (1 << 7)
#define	S390_ST1_BLD   (1 << 6)
#define	S390_ST1_24H   (1 << 1)
#define	S390_ST1_RESET   (1 << 0)
#define	S390_ST2_TEST   (1 << 7)
#define	S390_RT1_NBYTES   7
#define	S390_RT1_YEAR   0
#define	S390_RT1_MONTH   1
#define	S390_RT1_DAY   2
#define	S390_RT1_WDAY   3
#define	S390_RT1_HOUR   4
#define	S390_RT1_MINUTE   5
#define	S390_RT1_SECOND   6

Functions
	__FBSDID ("$FreeBSD$")
static uint8_t	bitreverse (uint8_t x)
static int	s390rtc_read (device_t dev, uint8_t reg, uint8_t *buf, size_t len)
static int	s390rtc_write (device_t dev, uint8_t reg, uint8_t *buf, size_t len)
static int	s390rtc_probe (device_t dev)
static void	s390rtc_start (void *arg)
static int	s390rtc_attach (device_t dev)
static int	s390rtc_detach (device_t dev)
static int	s390rtc_gettime (device_t dev, struct timespec *ts)
static int	s390rtc_settime (device_t dev, struct timespec *ts)
	DRIVER_MODULE (s35390a, iicbus, s390rtc_driver, s390rtc_devclass, NULL, NULL)
	MODULE_VERSION (s35390a, 1)
	MODULE_DEPEND (s35390a, iicbus, 1, 1, 1)

Variables
static const uint8_t	nibbletab []
static device_method_t	s390rtc_methods []
static driver_t	s390rtc_driver
static devclass_t	s390rtc_devclass

Macro Definition Documentation

S390_ADDR

#define S390_ADDR   (S390_DEVCODE << 4)

Definition at line 92 of file s35390a.c.

S390_CLOCKADJ

#define S390_CLOCKADJ   (6 << 1)

Definition at line 101 of file s35390a.c.

S390_DEVCODE

#define S390_DEVCODE   0x6 /* 0110 */

Definition at line 86 of file s35390a.c.

S390_DEVNAME

#define S390_DEVNAME   "s35390a_rtc"

Definition at line 85 of file s35390a.c.

S390_FREE

#define S390_FREE   (7 << 1)

Definition at line 102 of file s35390a.c.

S390_INT1_1

#define S390_INT1_1   (4 << 1)

Definition at line 99 of file s35390a.c.

S390_INT1_2

#define S390_INT1_2   (5 << 1)

Definition at line 100 of file s35390a.c.

S390_REALTIME1

#define S390_REALTIME1   (2 << 1)

Definition at line 97 of file s35390a.c.

S390_REALTIME2

#define S390_REALTIME2   (3 << 1)

Definition at line 98 of file s35390a.c.

S390_RT1_DAY

#define S390_RT1_DAY   2

Definition at line 117 of file s35390a.c.

S390_RT1_HOUR

#define S390_RT1_HOUR   4

Definition at line 119 of file s35390a.c.

S390_RT1_MINUTE

#define S390_RT1_MINUTE   5

Definition at line 120 of file s35390a.c.

S390_RT1_MONTH

#define S390_RT1_MONTH   1

Definition at line 116 of file s35390a.c.

S390_RT1_NBYTES

#define S390_RT1_NBYTES   7

Definition at line 114 of file s35390a.c.

S390_RT1_SECOND

#define S390_RT1_SECOND   6

Definition at line 121 of file s35390a.c.

S390_RT1_WDAY

#define S390_RT1_WDAY   3

Definition at line 118 of file s35390a.c.

S390_RT1_YEAR

#define S390_RT1_YEAR   0

Definition at line 115 of file s35390a.c.

S390_ST1_24H

#define S390_ST1_24H   (1 << 1)

Definition at line 107 of file s35390a.c.

S390_ST1_BLD

#define S390_ST1_BLD   (1 << 6)

Definition at line 106 of file s35390a.c.

S390_ST1_POC

#define S390_ST1_POC   (1 << 7)

Definition at line 105 of file s35390a.c.

S390_ST1_RESET

#define S390_ST1_RESET   (1 << 0)

Definition at line 108 of file s35390a.c.

S390_ST2_TEST

#define S390_ST2_TEST   (1 << 7)

Definition at line 111 of file s35390a.c.

S390_STATUS1

#define S390_STATUS1   (0 << 1)

Definition at line 95 of file s35390a.c.

S390_STATUS2

#define S390_STATUS2   (1 << 1)

Definition at line 96 of file s35390a.c.

Function Documentation

__FBSDID()

__FBSDID

(

"$FreeBSD$"

)

bitreverse()

static uint8_t bitreverse ( uint8_t  x )

static

Definition at line 151 of file s35390a.c.

References nibbletab.

Referenced by s390rtc_read(), and s390rtc_write().

Here is the caller graph for this function:

DRIVER_MODULE()

DRIVER_MODULE	(	s35390a	,
		iicbus	,
		s390rtc_driver	,
		s390rtc_devclass	,
		NULL	,
		NULL
	)

MODULE_DEPEND()

MODULE_DEPEND	(	s35390a	,
		iicbus	,
		1	,
		1	,
		1
	)

MODULE_VERSION()

MODULE_VERSION	(	s35390a	,
		1
	)

s390rtc_attach()

static int s390rtc_attach ( device_t  dev )

static

Definition at line 275 of file s35390a.c.

References dev, s390rtc_start(), s390rtc_softc::sc_addr, and s390rtc_softc::sc_dev.

Here is the call graph for this function:

s390rtc_detach()

static int s390rtc_detach ( device_t  dev )

static

Definition at line 289 of file s35390a.c.

References dev.

s390rtc_gettime()

static int s390rtc_gettime ( device_t  dev, struct timespec *  ts  )

static

Definition at line 297 of file s35390a.c.

References dev, S390_REALTIME1, S390_RT1_DAY, S390_RT1_HOUR, S390_RT1_MINUTE, S390_RT1_MONTH, S390_RT1_NBYTES, S390_RT1_SECOND, S390_RT1_WDAY, S390_RT1_YEAR, and s390rtc_read().

Here is the call graph for this function:

s390rtc_probe()

static int s390rtc_probe ( device_t  dev )

static

Definition at line 205 of file s35390a.c.

References dev, and S390_ADDR.

s390rtc_read()

static int s390rtc_read ( device_t  dev, uint8_t  reg, uint8_t *  buf, size_t  len  )

static

Definition at line 158 of file s35390a.c.

References bitreverse(), buf, dev, IIC_M_RD, IIC_WAIT, iicbus_transfer_excl(), len, s390rtc_softc::sc_addr, and iic_msg::slave.

Referenced by s390rtc_gettime(), and s390rtc_start().

Here is the call graph for this function:

Here is the caller graph for this function:

s390rtc_settime()

static int s390rtc_settime ( device_t  dev, struct timespec *  ts  )

static

Definition at line 327 of file s35390a.c.

References dev, S390_REALTIME1, S390_RT1_DAY, S390_RT1_HOUR, S390_RT1_MINUTE, S390_RT1_MONTH, S390_RT1_NBYTES, S390_RT1_SECOND, S390_RT1_WDAY, S390_RT1_YEAR, and s390rtc_write().

Here is the call graph for this function:

s390rtc_start()

static void s390rtc_start ( void *  arg )

static

Definition at line 229 of file s35390a.c.

References dev, S390_ST1_24H, S390_ST1_BLD, S390_ST1_POC, S390_ST1_RESET, S390_ST2_TEST, S390_STATUS1, S390_STATUS2, s390rtc_read(), and s390rtc_write().

Referenced by s390rtc_attach().

Here is the call graph for this function:

Here is the caller graph for this function:

s390rtc_write()

static int s390rtc_write ( device_t  dev, uint8_t  reg, uint8_t *  buf, size_t  len  )

static

Definition at line 184 of file s35390a.c.

References bitreverse(), buf, dev, IIC_M_WR, IIC_WAIT, iicbus_transfer_excl(), len, s390rtc_softc::sc_addr, and iic_msg::slave.

Referenced by s390rtc_settime(), and s390rtc_start().

Here is the call graph for this function:

Here is the caller graph for this function:

Variable Documentation

nibbletab

const uint8_t nibbletab[]

static

Initial value:

= {
                0x0,
                0x8,
                0x4,
                0xc,
                0x2,
                0xa,
                0x6,
                0xe,
                0x1,
                0x9,
                0x5,
                0xd,
                0x3,
                0xb,
                0x7,
                0xf, }

Definition at line 132 of file s35390a.c.

Referenced by bitreverse().

s390rtc_devclass

devclass_t s390rtc_devclass

static

Definition at line 366 of file s35390a.c.

s390rtc_driver

driver_t s390rtc_driver

static

Initial value:

= {
        S390_DEVNAME,
        s390rtc_methods,
        sizeof(struct s390rtc_softc),
}

Definition at line 361 of file s35390a.c.

s390rtc_methods

device_method_t s390rtc_methods[]

static

Initial value:

= {
        DEVMETHOD(device_probe,         s390rtc_probe),
        DEVMETHOD(device_attach,        s390rtc_attach),
        DEVMETHOD(device_detach,        s390rtc_detach),
 
        DEVMETHOD(clock_gettime,        s390rtc_gettime),
        DEVMETHOD(clock_settime,        s390rtc_settime),
 
        DEVMETHOD_END
}

Definition at line 350 of file s35390a.c.