librtas_src/procfs_calls.c File Reference

#include <fcntl.h>
#include <unistd.h>
#include <string.h>
#include "common.h"
#include "procfs.h"
#include "librtas.h"

Defines
#define	CFG_CONN_FILE   "cfg_connector"
#define	GET_POWER_FILE   "get_power"
#define	GET_SENSOR_FILE   "get_sensor"
#define	GET_SYSPARM_FILE   "get_sysparm"
#define	SET_INDICATOR_FILE   "set_indicator"
#define	SET_POWER_FILE   "set_power"
Functions
int	pfs_cfg_connector (int token, char *workarea)
	Set up arguments for procfs cfg-connector rtas call.
int	pfs_get_power (int token, int domain, int *level)
	Set up args for procfs get-power-level rtas call.
int	pfs_get_sensor (int token, int sensor, int index, int *state)
	Set up args for procfs get-sensor-state rtas call.
int	pfs_get_sysparm (int token, unsigned int parameter, unsigned int length, char *data)
	Set up call to procfs get-system-parameter rtas call.
int	pfs_set_indicator (int token, int indicator, int index, int new_value)
	Set up call to procfs set-indicator rtas call.
int	pfs_set_power (int token, int domain, int level, int *setlevel)
int	procfs_interface_exists ()
	VAlidate that the procfs interface to rtas exists.
static int	do_rtas_op (const char *proc_filename, void *buf, size_t buf_size)
	Perform the actual rtas call via the supplied procfs file.
Variables
struct rtas_operations	procfs_rtas_ops

---

Detailed Description

Copyright (C) 2005 IBM Corporation Common Public License Version 1.0 (see COPYRIGHT)

Author:

John Rose <johnrose@us.ibm.com>

---

Define Documentation

#define CFG_CONN_FILE   "cfg_connector"

Referenced by pfs_cfg_connector().

#define GET_POWER_FILE   "get_power"

Referenced by pfs_get_power().

#define GET_SENSOR_FILE   "get_sensor"

Referenced by pfs_get_sensor().

#define GET_SYSPARM_FILE   "get_sysparm"

Referenced by pfs_get_sysparm().

#define SET_INDICATOR_FILE   "set_indicator"

Referenced by pfs_set_indicator().

#define SET_POWER_FILE   "set_power"

Referenced by pfs_set_power().

---

Function Documentation

static int do_rtas_op	(	const char *	proc_filename,
		void *	buf,
		size_t	buf_size
	)			[static]

do_rtas_op

Parameters:

	proc_filename	procfs filename for the rtas call
	buf	buffer to read rtas call results into
	buf_size	size of the buf

Returns:

0 on success, !0 otherwise

References open_proc_rtas_file(), RTAS_IO_ASSERT, and RTAS_KERNEL_IMP.

Referenced by pfs_cfg_connector(), pfs_get_power(), pfs_get_sensor(), pfs_get_sysparm(), pfs_set_indicator(), and pfs_set_power().

int pfs_cfg_connector	(	int	token,
		char *	workarea
	)

pfs_cfg_connector

Parameters:

	token
	workarea

Returns:

0 on success, !0 otherwise

References CFG_CONN_FILE, do_rtas_op(), PAGE_SIZE, rtas_cfg_connector::status, and rtas_cfg_connector::workarea.

int pfs_get_power	(	int	token,
		int	domain,
		int *	level
	)

pfs_get_power

Parameters:

	token
	domain
	level

Returns:

0 on success, !0 otherwise

References do_rtas_op(), GET_POWER_FILE, rtas_get_power_level::level, rtas_get_power_level::powerdomain, and rtas_get_power_level::status.

int pfs_get_sensor	(	int	token,
		int	sensor,
		int	index,
		int *	state
	)

pfs_get_sensor

Parameters:

	token
	sensor
	index
	state

Returns:

0 on success, !0 otherwise

References do_rtas_op(), GET_SENSOR_FILE, rtas_get_sensor::index, rtas_get_sensor::sensor, rtas_get_sensor::state, and rtas_get_sensor::status.

int pfs_get_sysparm	(	int	token,
		unsigned int	parameter,
		unsigned int	length,
		char *	data
	)

pfs_get_sysparm

Parameters:

	token
	parameter
	length
	data

Returns:

0 on success, !0 otherwise

References rtas_get_sysparm::data, do_rtas_op(), GET_SYSPARM_FILE, rtas_get_sysparm::length, PAGE_SIZE, rtas_get_sysparm::parameter, and rtas_get_sysparm::status.

int pfs_set_indicator	(	int	token,
		int	indicator,
		int	index,
		int	new_value
	)

pfs_set_indicator

Parameters:

	token
	indicator
	index
	new_value

Returns:

0 on success, !0 otherwise

References do_rtas_op(), rtas_set_indicator::index, rtas_set_indicator::indicator, rtas_set_indicator::new_value, SET_INDICATOR_FILE, and rtas_set_indicator::status.

int pfs_set_power	(	int	token,
		int	domain,
		int	level,
		int *	setlevel
	)

pfs_set_power

Parameters:

	token
	domain
	level
	setlevel

Returns:

0 on success, !0 otherwise

References do_rtas_op(), rtas_set_power_level::level, rtas_set_power_level::powerdomain, SET_POWER_FILE, rtas_set_power_level::setlevel, and rtas_set_power_level::status.

int procfs_interface_exists

(

)

procfs_interfac_exists

Returns:

0 on success, !0 otherwise

References open_proc_rtas_file().

---

Variable Documentation

struct rtas_operations procfs_rtas_ops

Initial value:

 {
        .cfg_connector = pfs_cfg_connector,
        .get_power_level = pfs_get_power,
        .get_sensor = pfs_get_sensor,
        .get_sysparm = pfs_get_sysparm,
        .set_indicator = pfs_set_indicator,
        .set_power_level = pfs_set_power,
        .interface_exists = procfs_interface_exists,
}