[LV-kern-commit] CVS: kernel-2.4/drivers/acpi/ospm/ac_adapter Makefile,NONE,1.1 ac.c,NONE,1.1 ac_osl

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Update of /cvsroot/linux-vax/kernel-2.4/drivers/acpi/ospm/ac_adapter
In directory usw-pr-cvs1:/tmp/cvs-serv13840/acpi/ospm/ac_adapter

Added Files:
	Makefile ac.c ac_osl.c 
Log Message:
synch 2.4.15 commit 17

--- NEW FILE ---
O_TARGET	:= ospm_$(notdir $(CURDIR)).o
obj-m		:= $(O_TARGET)
EXTRA_CFLAGS	+= $(ACPI_CFLAGS)
obj-y		:= $(patsubst %.c,%.o,$(wildcard *.c))

include $(TOPDIR)/Rules.make

--- NEW FILE ---
/*****************************************************************************
 *
 * Module Name: ac.c
 *   $Revision: 1.1 $
 *
 *****************************************************************************/

/*
 *  Copyright (C) 2000, 2001 Andrew Grover
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include <acpi.h>
#include "ac.h"

#define _COMPONENT		ACPI_AC_ADAPTER
	MODULE_NAME 		("ac")

/****************************************************************************
 *                            Internal Functions
 ****************************************************************************/

/****************************************************************************
 *
 * FUNCTION:	ac_print
 *
 * PARAMETERS:	
 *
 * RETURN:	
 *
 * DESCRIPTION: Prints out information on a specific ac_adapter.
 *
 ****************************************************************************/

void
ac_print (
	AC_CONTEXT		*ac_adapter)
{
#ifdef ACPI_DEBUG

	acpi_buffer		buffer;

	PROC_NAME("ac_print");

	if (!ac_adapter) {
		return;
	}

	buffer.length = 256;
	buffer.pointer = acpi_os_callocate(buffer.length);
	if (!buffer.pointer) {
		return;
	}

	/*
	 * Get the full pathname for this ACPI object.
	 */
	acpi_get_name(ac_adapter->acpi_handle, ACPI_FULL_PATHNAME, &buffer);

	/*
	 * Print out basic adapter information.
	 */
	ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INFO, "+------------------------------------------------------------\n"));
	ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INFO, "| AC Adapter[%02x]:[%p] %s\n", ac_adapter->device_handle, ac_adapter->acpi_handle, (char*)buffer.pointer));
	ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INFO, "+------------------------------------------------------------\n"));

	acpi_os_free(buffer.pointer);
#endif /*ACPI_DEBUG*/

	return;
}

/****************************************************************************
 *
 * FUNCTION:	ac_add_device
 *
 * PARAMETERS:	
 *
 * RETURN:	
 *
 * DESCRIPTION:
 *
 ****************************************************************************/

acpi_status
ac_add_device(
	BM_HANDLE		device_handle,
	void			**context)
{
	acpi_status 		status = AE_OK;
	BM_DEVICE		*device = NULL;
	AC_CONTEXT		*ac_adapter = NULL;
	acpi_device_info	info;

	FUNCTION_TRACE("ac_add_device");

	ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Adding ac_adapter device [%02x].\n", device_handle));

	if (!context || *context) {
		ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Invalid (NULL) context."));
		return_ACPI_STATUS(AE_BAD_PARAMETER);
	}

	/*
	 * Get information on this device.
	 */
	status = bm_get_device_info(device_handle, &device);
	if (ACPI_FAILURE(status)) {
		return_ACPI_STATUS(status);
	}

	/*
	 * Allocate a new AC_CONTEXT structure.
	 */
	ac_adapter = acpi_os_callocate(sizeof(AC_CONTEXT));
	if (!ac_adapter) {
		return_ACPI_STATUS(AE_NO_MEMORY);
	}

	ac_adapter->device_handle = device->handle;
	ac_adapter->acpi_handle = device->acpi_handle;

	/*
	 * Get information on this object.
	 */
	status = acpi_get_object_info(ac_adapter->acpi_handle, &info);
	if (ACPI_FAILURE(status)) {
		ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Unable to get object info for ac_adapter device."));
		goto end;
	}

	/*
	 * _UID?
	 * -----
	 */
	if (info.valid & ACPI_VALID_UID) {
		strncpy(ac_adapter->uid, info.unique_id, sizeof(info.unique_id));
	}
	else {
		strncpy(ac_adapter->uid, "0", sizeof("0"));
	}

	/*
	 * _STA?
	 * -----
	 */
	if (!(info.valid & ACPI_VALID_STA)) {
		ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Must have valid _STA.\n"));
		status = AE_ERROR;
		goto end;
	}

	status = ac_osl_add_device(ac_adapter);
	if (ACPI_FAILURE(status)) {
		goto end;
	}

	*context = ac_adapter;

	ac_print(ac_adapter);

end:
	if (ACPI_FAILURE(status)) {
		acpi_os_free(ac_adapter);
	}

	return_ACPI_STATUS(status);
}

/****************************************************************************
 *
 * FUNCTION:	ac_remove_device
 *
 * PARAMETERS:	
 *
 * RETURN:	
 *
 * DESCRIPTION:
 *
 ****************************************************************************/

acpi_status
ac_remove_device (
	void			**context)
{
	acpi_status 		status = AE_OK;
	AC_CONTEXT		*ac_adapter = NULL;

	FUNCTION_TRACE("ac_remove_device");

	if (!context || !*context) {
		return_ACPI_STATUS(AE_BAD_PARAMETER);
	}

	ac_adapter = (AC_CONTEXT*)*context;

	ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Removing ac_adapter device [%02x].\n", ac_adapter->device_handle));

	ac_osl_remove_device(ac_adapter);

	acpi_os_free(ac_adapter);

	*context = NULL;

	return_ACPI_STATUS(status);
}

/****************************************************************************
 *                             External Functions
 ****************************************************************************/

/****************************************************************************
 *
 * FUNCTION:	ac_initialize
 *
 * PARAMETERS:	<none>
 *
 * RETURN:	
 *
 * DESCRIPTION:
 *
 ****************************************************************************/

acpi_status
ac_initialize (void)
{
	acpi_status		status = AE_OK;
	BM_DEVICE_ID		criteria;
	BM_DRIVER		driver;

	FUNCTION_TRACE("ac_initialize");

	MEMSET(&criteria, 0, sizeof(BM_DEVICE_ID));
	MEMSET(&driver, 0, sizeof(BM_DRIVER));

	driver.notify = &ac_notify;
	driver.request = &ac_request;

	/*
	 * Register driver for AC Adapter devices.
	 */
	MEMCPY(criteria.hid, AC_HID_AC_ADAPTER, sizeof(AC_HID_AC_ADAPTER));

	status = bm_register_driver(&criteria, &driver);

	return_ACPI_STATUS(status);
}

/****************************************************************************
 *
 * FUNCTION:	ac_terminate
 *
 * PARAMETERS:	<none>
 *
 * RETURN:	
 *
 * DESCRIPTION:
 *
 ****************************************************************************/

acpi_status
ac_terminate (void)
{
	acpi_status 		status = AE_OK;
	BM_DEVICE_ID		criteria;
	BM_DRIVER		driver;

	FUNCTION_TRACE("ac_terminate");

	MEMSET(&criteria, 0, sizeof(BM_DEVICE_ID));
	MEMSET(&driver, 0, sizeof(BM_DRIVER));

	/*
	 * Unregister driver for AC Adapter devices.
	 */
	MEMCPY(criteria.hid, AC_HID_AC_ADAPTER, sizeof(AC_HID_AC_ADAPTER));

	driver.notify = &ac_notify;
	driver.request = &ac_request;

	status = bm_unregister_driver(&criteria, &driver);

	return_ACPI_STATUS(status);
}

/*****************************************************************************
 *
 * FUNCTION:	ac_notify
 *
 * PARAMETERS:	<none>
 *
 * RETURN:	
 *
 * DESCRIPTION:
 *
 ****************************************************************************/
acpi_status
ac_notify (
	BM_NOTIFY		notify_type,
	BM_HANDLE		device_handle,
	void			**context)
{
	acpi_status 		status = AE_OK;

	FUNCTION_TRACE("ac_notify");

	if (!context) {
		return_ACPI_STATUS(AE_BAD_PARAMETER);
	}

	switch (notify_type) {

	case BM_NOTIFY_DEVICE_ADDED:
		status = ac_add_device(device_handle, context);
		break;

	case BM_NOTIFY_DEVICE_REMOVED:
		status = ac_remove_device(context);
		break;

	case AC_NOTIFY_STATUS_CHANGE:
		ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Status change event detected.\n"));
		status = ac_osl_generate_event(notify_type,
			((AC_CONTEXT*)*context));
		break;

	default:
		status = AE_SUPPORT;
		break;
	}

	return_ACPI_STATUS(status);
}

/****************************************************************************
 *
 * FUNCTION:	ac_request
 *
 * PARAMETERS:	
 *
 * RETURN:	
 *
 * DESCRIPTION:
 *
 ****************************************************************************/

acpi_status
ac_request (
	BM_REQUEST		*request,
	void			*context)
{
	acpi_status 		status = AE_OK;

	FUNCTION_TRACE("ac_request");

	/*
	 * Must have a valid request structure and context.
	 */
	if (!request || !context) {
		return_ACPI_STATUS(AE_BAD_PARAMETER);
	}

	/*
	 * Handle Request:
	 * ---------------
	 */
	switch (request->command) {

	default:
		status = AE_SUPPORT;
		break;
	}

	request->status = status;

	return_ACPI_STATUS(status);
}

--- NEW FILE ---
/*****************************************************************************
 *
 * Module Name: ac_osl.c
 *   $Revision: 1.1 $
 *
 *****************************************************************************/

/*
 *  Copyright (C) 2000, 2001 Andrew Grover
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/proc_fs.h>
#include <acpi.h>
#include "ac.h"

MODULE_AUTHOR("Andrew Grover");
MODULE_DESCRIPTION("ACPI Component Architecture (CA) - AC Adapter Driver");

#define AC_PROC_ROOT		"ac_adapter"
#define AC_PROC_STATUS		"status"
#define AC_ON_LINE		"on-line"
#define AC_OFF_LINE		"off-line"

extern struct proc_dir_entry	*bm_proc_root;
static struct proc_dir_entry	*ac_proc_root = NULL;

/****************************************************************************
 *
 * FUNCTION:	ac_osl_proc_read_status
 *
 ****************************************************************************/

static int
ac_osl_proc_read_status (
	char			*page,
	char			**start,
	off_t			off,
	int 			count,
	int 			*eof,
	void			*context)
{
	acpi_status 		status = AE_OK;
	AC_CONTEXT		*ac_adapter = NULL;
	char			*p = page;
	int			len;

	if (!context) {
		goto end;
	}

	ac_adapter = (AC_CONTEXT*)context;

	/* don't get status more than once for a single proc read */
	if (off != 0) {
		goto end;
	}

	status = bm_evaluate_simple_integer(ac_adapter->acpi_handle,
		"_PSR", &(ac_adapter->is_online));
	if (ACPI_FAILURE(status)) {
		p += sprintf(p, "Error reading AC Adapter status\n");
		goto end;
	}

	if (ac_adapter->is_online) {
		p += sprintf(p, "Status:                  %s\n",
			AC_ON_LINE);
	}
	else {
		p += sprintf(p, "Status:                  %s\n",
			AC_OFF_LINE);
	}

end:
	len = (p - page);
	if (len <= off+count) *eof = 1;
	*start = page + off;
	len -= off;
	if (len>count) len = count;
	if (len<0) len = 0;

	return(len);
}

/****************************************************************************
 *
 * FUNCTION:	ac_osl_add_device
 *
 ****************************************************************************/

acpi_status
ac_osl_add_device(
	AC_CONTEXT		*ac_adapter)
{
	struct proc_dir_entry	*proc_entry = NULL;

	if (!ac_adapter) {
		return(AE_BAD_PARAMETER);
	}

	printk(KERN_INFO "ACPI: AC Adapter found\n");

	proc_entry = proc_mkdir(ac_adapter->uid, ac_proc_root);
	if (!proc_entry) {
		return(AE_ERROR);
	}

	create_proc_read_entry(AC_PROC_STATUS, S_IFREG | S_IRUGO,
		proc_entry, ac_osl_proc_read_status, (void*)ac_adapter);

	return(AE_OK);
}

/****************************************************************************
 *
 * FUNCTION:	ac_osl_remove_device
 *
 ****************************************************************************/

acpi_status
ac_osl_remove_device (
	AC_CONTEXT		*ac_adapter)
{
	char			proc_entry[64];

	if (!ac_adapter) {
		return(AE_BAD_PARAMETER);
	}

	sprintf(proc_entry, "%s/%s", ac_adapter->uid, AC_PROC_STATUS);
	remove_proc_entry(proc_entry, ac_proc_root);

	sprintf(proc_entry, "%s", ac_adapter->uid);
	remove_proc_entry(proc_entry, ac_proc_root);

	return(AE_OK);
}

/****************************************************************************
 *
 * FUNCTION:	ac_osl_generate_event
 *
 ****************************************************************************/

acpi_status
ac_osl_generate_event (
	u32			event,
	AC_CONTEXT		*ac_adapter)
{
	acpi_status		status = AE_OK;

	if (!ac_adapter) {
		return(AE_BAD_PARAMETER);
	}

	switch (event) {

	case AC_NOTIFY_STATUS_CHANGE:
		status = bm_osl_generate_event(ac_adapter->device_handle,
			AC_PROC_ROOT, ac_adapter->uid, event, 0);
		break;

	default:
		return(AE_BAD_PARAMETER);
		break;
	}

	return(status);
}

/****************************************************************************
 *
 * FUNCTION:	ac_osl_init
 *
 * PARAMETERS:	<none>
 *
 * RETURN:	0: Success
 *
 * DESCRIPTION: Module initialization.
 *
 ****************************************************************************/

static int __init
ac_osl_init (void)
{
	acpi_status		status = AE_OK;

	ac_proc_root = proc_mkdir(AC_PROC_ROOT, bm_proc_root);
	if (!ac_proc_root) {
		status = AE_ERROR;
	}
	else {
		status = ac_initialize();
		if (ACPI_FAILURE(status)) {
			remove_proc_entry(AC_PROC_ROOT, bm_proc_root);
		}

	}

	return (ACPI_SUCCESS(status)) ? 0 : -ENODEV;
}

/****************************************************************************
 *
 * FUNCTION:	ac_osl_cleanup
 *
 * PARAMETERS:	<none>
 *
 * RETURN:	<none>
 *
 * DESCRIPTION: Module cleanup.
 *
 ****************************************************************************/

static void __exit
ac_osl_cleanup (void)
{
	ac_terminate();

	if (ac_proc_root) {
		remove_proc_entry(AC_PROC_ROOT, bm_proc_root);
	}

	return;
}

module_init(ac_osl_init);
module_exit(ac_osl_cleanup);

[LV-kern-commit] CVS: kernel-2.4/drivers/acpi/ospm/ac_adapter Makefile,NONE,1.1 ac.c,NONE,1.1 ac_osl

[LV-kern-commit] CVS: kernel-2.4/drivers/acpi/ospm/ac_adapter Makefile,NONE,1.1 ac.c,NONE,1.1 ac_osl.c,NONE,1.1