patch-2.4.22 linux-2.4.22/drivers/acpi/ospm/ec/ecgpe.c

• Lines: 250
• Date: 1969-12-31 16:00:00.000000000 -0800
• Orig file: linux-2.4.21/drivers/acpi/ospm/ec/ecgpe.c
• Orig date: 2001-09-23 09:42:32.000000000 -0700

diff -urN linux-2.4.21/drivers/acpi/ospm/ec/ecgpe.c linux-2.4.22/drivers/acpi/ospm/ec/ecgpe.c
@@ -1,249 +0,0 @@
-/*****************************************************************************
- *
- * Module Name: ecgpe.c
- *   $Revision: 28 $
- *
- *****************************************************************************/
-
-/*
- *  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 "ec.h"
-
-#define _COMPONENT		ACPI_EC
-	MODULE_NAME		("ecgpe")
-
-
-/****************************************************************************
- *
- * FUNCTION:    ec_query_handler
- *
- * PARAMETERS:
- *
- * RETURN:
- *
- * DESCRIPTION:
- *
- ****************************************************************************/
-
-void
-ec_query_handler (
-	void                    *context)
-{
-	EC_CONTEXT		*ec = (EC_CONTEXT*)context;
-	static char		object_name[5] = {'_','Q','0','0','\0'};
-	const char		hex[] = {'0','1','2','3','4','5','6','7','8',
-					'9','A','B','C','D','E','F'};
-
-	FUNCTION_TRACE("ec_query_handler");
-
-	if (!ec) {
-		ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Invalid (NULL) context.\n"));
-		return_VOID;
-	}
-
-	/*
-	 * Evaluate _Qxx:
-	 * --------------
-	 * Evaluate corresponding _Qxx method.  Note that a zero query value
-	 * indicates a spurious EC_SCI (no such thing as _Q00).
-	 */
-	object_name[2] = hex[((ec->query_data >> 4) & 0x0F)];
-	object_name[3] = hex[(ec->query_data & 0x0F)];
-
-	ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Evaluating [%s] for ec [%02x].\n", object_name, ec->device_handle));
-
-	bm_evaluate_object(ec->acpi_handle, object_name, NULL, NULL);
-
-	return_VOID;
-}
-
-
-/****************************************************************************
- *
- * FUNCTION:    ec_gpe_handler
- *
- * PARAMETERS:
- *
- * RETURN:
- *
- * DESCRIPTION:
- *
- ****************************************************************************/
-
-void
-ec_gpe_handler (
-	void                    *context)
-{
-	acpi_status             status = AE_OK;
-	EC_CONTEXT              *ec = (EC_CONTEXT*)context;
-	EC_STATUS               ec_status = 0;
-
-	FUNCTION_TRACE("ec_gpe_handler");
-
-	if (!ec) {
-		ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Invalid (NULL) context.\n"));
-		return_VOID;
-	}
-
-	/* TBD: synchronize w/ transaction (ectransx). */
-
-	/*
-	 * EC_SCI?
-	 * -------
-	 * Check the EC_SCI bit to see if this is an EC_SCI event.  If not (e.g.
-	 * OBF/IBE) just return, as we already poll to detect these events.
-	 */
-	acpi_os_read_port(ec->status_port, &ec_status, 8);
-	if (!(ec_status & EC_FLAG_SCI)) {
-		return_VOID;
-	}
-
-	ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "EC_SCI event detected on ec [%02x] - running query.\n", ec->device_handle));
-
-	/*
-	 * Run Query:
-	 * ----------
-	 * Query the EC to find out which _Qxx method we need to evaluate.
-	 * Note that successful completion of the query causes the EC_SCI
-	 * bit to be cleared (and thus clearing the interrupt source).
-	 */
-	status = ec_io_write(ec, ec->command_port, EC_COMMAND_QUERY,
-		EC_EVENT_OUTPUT_BUFFER_FULL);
-	if (ACPI_FAILURE(status)) {
-		ACPI_DEBUG_PRINT ((ACPI_DB_WARN, "Unable to send 'query command' to EC.\n"));
-		return_VOID;
-	}
-
-	status = ec_io_read(ec, ec->data_port, &(ec->query_data),
-		EC_EVENT_NONE);
-	if (ACPI_FAILURE(status)) {
-		ACPI_DEBUG_PRINT ((ACPI_DB_WARN, "Error reading query data.\n"));
-		return_VOID;
-	}
-
-	/* TBD: un-synchronize w/ transaction (ectransx). */
-
-	/*
-	 * Spurious EC_SCI?
-	 * ----------------
-	 */
-	if (!ec->query_data) {
-		ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Spurious EC SCI detected.\n"));
-		return_VOID;
-	}
-
-	/*
-	 * Defer _Qxx Execution:
-	 * ---------------------
-	 * Can't evaluate this method now 'cause we're at interrupt-level.
-	 */
-	status = acpi_os_queue_for_execution(OSD_PRIORITY_GPE,
-		ec_query_handler, ec);
-	if (ACPI_FAILURE(status)) {
-		ACPI_DEBUG_PRINT ((ACPI_DB_WARN, "Unable to defer _Qxx method evaluation.\n"));
-		return_VOID;
-	}
-
-	return_VOID;
-}
-
-
-/****************************************************************************
- *
- * FUNCTION:    ec_install_gpe_handler
- *
- * PARAMETERS:
- *
- * RETURN:
- *
- * DESCRIPTION:
- *
- ****************************************************************************/
-
-acpi_status
-ec_install_gpe_handler (
-	EC_CONTEXT              *ec)
-{
-	acpi_status             status = AE_OK;
-
-	FUNCTION_TRACE("ec_install_gpe_handler");
-
-	if (!ec) {
-		return_ACPI_STATUS(AE_BAD_PARAMETER);
-	}
-
-	/*
-	 * Evaluate _GPE:
-	 * --------------
-	 * Evaluate the "_GPE" object (required) to find out which GPE bit
-	 * is used by this EC to signal events (SCIs).
-	 */
-	status = bm_evaluate_simple_integer(ec->acpi_handle,
-		"_GPE", &(ec->gpe_bit));
-	if (ACPI_FAILURE(status)) {
-		return_ACPI_STATUS(status);
-	}
-
-	/*
-	 * Install GPE Handler:
-	 * --------------------
-	 * Install a handler for this EC's GPE bit.
-	 */
-	status = acpi_install_gpe_handler(ec->gpe_bit, ACPI_EVENT_EDGE_TRIGGERED,
-		&ec_gpe_handler, ec);
-	if (ACPI_FAILURE(status)) {
-		ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "acpi_install_gpe_handler() failed for GPE bit [%02x] with status [%08x].\n", ec->gpe_bit, status));
-		ec->gpe_bit = EC_GPE_UNKNOWN;
-		return_ACPI_STATUS(status);
-	}
-
-	return_ACPI_STATUS(status);
-}
-
-
-/****************************************************************************
- *
- * FUNCTION:    ec_remove_gpe_handler
- *
- * PARAMETERS:
- *
- * RETURN:
- *
- * DESCRIPTION:
- *
- ****************************************************************************/
-
-acpi_status
-ec_remove_gpe_handler (
-	EC_CONTEXT              *ec)
-{
-	acpi_status             status = AE_OK;
-
-	FUNCTION_TRACE("ec_remove_gpe_handler");
-
-	if (!ec) {
-		return_ACPI_STATUS(AE_BAD_PARAMETER);
-	}
-
-	status = acpi_remove_gpe_handler(ec->gpe_bit, &ec_gpe_handler);
-
-	return_ACPI_STATUS(status);
-}