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

• Lines: 499
• Date: 1969-12-31 16:00:00.000000000 -0800
• Orig file: linux-2.4.21/drivers/acpi/ospm/ec/ecmain.c
• Orig date: 2001-10-24 14:06:22.000000000 -0700

diff -urN linux-2.4.21/drivers/acpi/ospm/ec/ecmain.c linux-2.4.22/drivers/acpi/ospm/ec/ecmain.c
@@ -1,498 +0,0 @@
-/*****************************************************************************
- *
- * Module Name: ecmain.c
- *   $Revision: 29 $
- *
- *****************************************************************************/
-
-/*
- *  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		("ecmain")
-
-
-/****************************************************************************
- *                            Internal Functions
- ****************************************************************************/
-
-/****************************************************************************
- *
- * FUNCTION:    ec_print
- *
- * PARAMETERS:
- *
- * RETURN:
- *
- * DESCRIPTION: Prints out information on a specific ec.
- *
- ****************************************************************************/
-
-void
-ec_print (
-	EC_CONTEXT              *ec)
-{
-#ifdef ACPI_DEBUG
-	acpi_buffer             buffer;
-#endif /*ACPI_DEBUG*/
-
-	PROC_NAME("ec_print");
-
-	if (!ec) {
-		return;
-	}
-
-	acpi_os_printf("EC: found, GPE %d\n", ec->gpe_bit);
-
-#ifdef ACPI_DEBUG
-	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(ec->acpi_handle, ACPI_FULL_PATHNAME, &buffer);
-
-	/*
-	 * Print out basic thermal zone information.
-	 */
-	ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INFO, "+------------------------------------------------------------\n"));
-	ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INFO, "| Embedded_controller[%02x]:[%p] %s\n", ec->device_handle, ec->acpi_handle, (char*)buffer.pointer));
-	ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INFO, "|   gpe_bit[%02x] status/command_port[%02x] data_port[%02x]\n", ec->gpe_bit, ec->status_port, ec->data_port));
-	ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INFO, "+------------------------------------------------------------\n"));
-
-	acpi_os_free(buffer.pointer);
-#endif /*ACPI_DEBUG*/
-
-	return;
-}
-
-
-/****************************************************************************
- *
- * FUNCTION:    ec_get_port_values
- *
- * PARAMETERS:
- *
- * RETURN:
- *
- * DESCRIPTION: Evaluate _CRS to get the current resources (I/O port
- *              addresses) for this EC.
- *
- ****************************************************************************/
-
-acpi_status
-ec_get_port_values(
-	EC_CONTEXT              *ec)
-{
-	acpi_status             status = AE_OK;
-	acpi_buffer             buffer;
-	acpi_resource           *resource = NULL;
-
-	FUNCTION_TRACE("ec_get_port_values");
-
-	if (!ec) {
-		return_ACPI_STATUS(AE_BAD_PARAMETER);
-	}
-
-	buffer.length = 0;
-	buffer.pointer = NULL;
-
-	status = acpi_get_current_resources(ec->acpi_handle, &buffer);
-	if (status != AE_BUFFER_OVERFLOW) {
-		return_ACPI_STATUS(status);
-	}
-
-	buffer.pointer = acpi_os_callocate(buffer.length);
-	if (!buffer.pointer) {
-		return_ACPI_STATUS(AE_NO_MEMORY);
-	}
-
-	status = acpi_get_current_resources(ec->acpi_handle, &buffer);
-	if (ACPI_FAILURE(status)) {
-		goto end;
-	}
-
-	resource = (acpi_resource *) buffer.pointer;
-	ec->data_port = resource->data.io.min_base_address;
-
-	resource = NEXT_RESOURCE(resource);
-
-	ec->status_port = ec->command_port =
-		resource->data.io.min_base_address;
-end:
-	acpi_os_free(buffer.pointer);
-
-	return_ACPI_STATUS(status);
-}
-
-
-/****************************************************************************
- *
- * FUNCTION:    ec_add_device
- *
- * PARAMETERS:
- *
- * RETURN:
- *
- * DESCRIPTION:
- *
- ****************************************************************************/
-
-acpi_status
-ec_add_device(
-	BM_HANDLE               device_handle,
-	void                    **context)
-{
-	acpi_status             status = AE_OK;
-	BM_DEVICE		*device = NULL;
-	EC_CONTEXT              *ec = NULL;
-	u8                      gpe_handler = FALSE;
-	u8                      space_handler = FALSE;
-
-	FUNCTION_TRACE("ec_add_device");
-
-	ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Adding EC device [%02x].\n", device_handle));
-
-	if (!context || *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 EC_CONTEXT structure.
-	 */
-	ec = acpi_os_callocate(sizeof(EC_CONTEXT));
-	if (!ec) {
-		return_ACPI_STATUS(AE_NO_MEMORY);
-	}
-
-	ec->device_handle = device->handle;
-	ec->acpi_handle = device->acpi_handle;
-
-	/*
-	 * Get the I/O port addresses for the command/status and data ports.
-	 */
-	status = ec_get_port_values(ec);
-	if (ACPI_FAILURE(status)) {
-		goto end;
-	}
-
-	/*
-	 * See if we need to obtain the global lock for EC transactions.
-	 */
-	status = bm_evaluate_simple_integer(ec->acpi_handle, "_GLK",
-		&ec->use_global_lock);
-	if (status == AE_NOT_FOUND) {
-		ec->use_global_lock = 0;
-	}
-	else if (ACPI_FAILURE(status)) {
-		ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "EC _GLK failed\n"));
-		goto end;
-	}
-
-	/*
-	 * Install a handler for servicing this EC's GPE.
-	 */
-	status = ec_install_gpe_handler(ec);
-	if (ACPI_FAILURE(status)) {
-		goto end;
-	}
-	else {
-		gpe_handler = TRUE;
-	}
-
-	/*
-	 * Install a handler for servicing this EC's address space.
-	 */
-	status = ec_install_space_handler(ec);
-	if (ACPI_FAILURE(status)) {
-		goto end;
-	}
-	else {
-		space_handler = TRUE;
-	}
-
-	/*
-	 * Create a semaphore to serialize EC transactions.
-	 */
-	status = acpi_os_create_semaphore(1,1, &(ec->mutex));
-	if (ACPI_FAILURE(status)) {
-		goto end;
-	}
-
-	/*
-	 * Context now contains information specific to this EC.  Note
-	 * that we'll get this pointer back on every ec_request() and
-	 * ec_notify().
-	 */
-	*context = ec;
-
-	ec_print(ec);
-
-end:
-	if (ACPI_FAILURE(status)) {
-
-		if (gpe_handler) {
-			ec_remove_gpe_handler(ec);
-		}
-
-		if (space_handler) {
-			ec_remove_space_handler(ec);
-		}
-
-		if (ec->mutex) {
-			acpi_os_delete_semaphore(ec->mutex);
-		}
-
-		acpi_os_free(ec);
-	}
-
-	return_ACPI_STATUS(status);
-}
-
-
-/****************************************************************************
- *
- * FUNCTION:    ec_remove_device
- *
- * PARAMETERS:
- *
- * RETURN:
- *
- * DESCRIPTION:
- *
- ****************************************************************************/
-
-acpi_status
-ec_remove_device(
-	void                    **context)
-{
-	acpi_status             status = AE_OK;
-	EC_CONTEXT              *ec = NULL;
-
-	FUNCTION_TRACE("ec_remove_device");
-
-	if (!context || !*context) {
-		return_ACPI_STATUS(AE_BAD_PARAMETER);
-	}
-
-	ec = (EC_CONTEXT*)*context;
-
-	ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Removing EC device [%02x].\n", ec->device_handle));
-
-	ec_remove_space_handler(ec);
-
-	ec_remove_gpe_handler(ec);
-
-	if (ec->mutex) {
-		acpi_os_delete_semaphore(ec->mutex);
-	}
-
-	acpi_os_free(ec);
-
-	*context = NULL;
-
-	return_ACPI_STATUS(status);
-}
-
-
-/****************************************************************************
- *                             External Functions
- ****************************************************************************/
-
-/****************************************************************************
- *
- * FUNCTION:    ec_initialize
- *
- * PARAMETERS:
- *
- * RETURN:
- *
- * DESCRIPTION:
- *
- ****************************************************************************/
-
-acpi_status
-ec_initialize (void)
-{
-	acpi_status             status = AE_OK;
-	BM_DEVICE_ID		criteria;
-	BM_DRIVER		driver;
-
-	FUNCTION_TRACE("ec_initialize");
-
-	MEMSET(&criteria, 0, sizeof(BM_DEVICE_ID));
-	MEMSET(&driver, 0, sizeof(BM_DRIVER));
-
-	/*
-	 * Register driver for AC Adapter devices.
-	 */
-	MEMCPY(criteria.hid, EC_HID_EC, sizeof(EC_HID_EC));
-
-	driver.notify = &ec_notify;
-	driver.request = &ec_request;
-
-	status = bm_register_driver(&criteria, &driver);
-
-	return_ACPI_STATUS(status);
-}
-
-
-/****************************************************************************
- *
- * FUNCTION:    ec_terminate
- *
- * PARAMETERS:
- *
- * RETURN:
- *
- * DESCRIPTION:
- *
- ****************************************************************************/
-
-acpi_status
-ec_terminate(void)
-{
-	acpi_status             status = AE_OK;
-	BM_DEVICE_ID		criteria;
-	BM_DRIVER		driver;
-
-	FUNCTION_TRACE("ec_terminate");
-
-	MEMSET(&criteria, 0, sizeof(BM_DEVICE_ID));
-	MEMSET(&driver, 0, sizeof(BM_DRIVER));
-
-	/*
-	 * Unregister driver for AC Adapter devices.
-	 */
-	MEMCPY(criteria.hid, EC_HID_EC, sizeof(EC_HID_EC));
-
-	driver.notify = &ec_notify;
-	driver.request = &ec_request;
-
-	status = bm_unregister_driver(&criteria, &driver);
-
-	return_ACPI_STATUS(status);
-}
-
-
-/****************************************************************************
- *
- * FUNCTION:    ec_notify
- *
- * PARAMETERS:
- *
- * RETURN:
- *
- * DESCRIPTION:
- *
- ****************************************************************************/
-
-acpi_status
-ec_notify (
-	BM_NOTIFY               notify,
-	BM_HANDLE               device_handle,
-	void                    **context)
-{
-	acpi_status             status = AE_OK;
-
-	FUNCTION_TRACE("ec_notify");
-
-	switch (notify) {
-
-	case BM_NOTIFY_DEVICE_ADDED:
-		status = ec_add_device(device_handle, context);
-		break;
-
-	case BM_NOTIFY_DEVICE_REMOVED:
-		status = ec_remove_device(context);
-		break;
-
-	default:
-		status = AE_SUPPORT;
-		break;
-	}
-
-	return_ACPI_STATUS(status);
-}
-
-
-/****************************************************************************
- *
- * FUNCTION:    ec_request
- *
- * PARAMETERS:
- *
- * RETURN:
- *
- * DESCRIPTION:
- *
- ****************************************************************************/
-
-acpi_status
-ec_request (
-	BM_REQUEST              *request,
-	void                    *context)
-{
-	acpi_status             status = AE_OK;
-	EC_REQUEST              *ec_request = NULL;
-	EC_CONTEXT              *ec = NULL;
-
-	FUNCTION_TRACE("ec_request");
-
-	/*
-	 * Must have a valid request structure and context.
-	 */
-	if (!request || !context)
-		return_ACPI_STATUS(AE_BAD_PARAMETER);
-
-	/*
-	 * buffer must contain a valid EC_REQUEST structure.
-	 */
-	status = bm_cast_buffer(&(request->buffer), (void**)&ec_request,
-		sizeof(EC_REQUEST));
-	if (ACPI_FAILURE(status))
-		return_ACPI_STATUS(status);
-
-	/*
-	 * context contains information specific to this EC.
-	 */
-	ec = (EC_CONTEXT*)context;
-
-	/*
-	 * Perform the Transaction.
-	 */
-	status = ec_transaction(ec, ec_request);
-
-	return_ACPI_STATUS(status);
-}