set_adapter.c

HP PCI热插拔代码GUI HP内部珍贵资料！

/*
 *    Compaq Hot Plug Controller Graphical User Interface 
 *    Copyright 2000, 2001 Compaq Computer Corporation
 *    All rights reserved.
 *
 *    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, GOOD TITLE or
 *    NON INFRINGEMENT.  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., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 *    Please send all questions or concerns to [e-mail]
 */

#include "commonheader.h"
#include "callbacks.h"
#include "interface.h"
#include "refresh_table.h"
#include "set_adapter.h"
#include "tree.h"
#include "build_tree.h"

// since adding/removing a device is a slot-based operation, the ioctl call is placed in this function
void set_adapter_from_slot (int function, GtkCTree* tree, GtkCTreeNode* node, GtkWidget* table, GtkWidget* status_bar, pci_tree_node* user_data)
{
	int rt = 0;
	char msg[MAXLEN];
	pci_tree_node* tmp_p_node;
	GtkCList* clist = GTK_CLIST(tree);

        if (selected_row != NOT_SELECTED)
        {
		sigset_t current, backup;

		sigemptyset(&current);
		sigaddset(&current, SIGIO);
		sigprocmask(SIG_BLOCK, &current, &backup);

		if (rt < 0) {
			g_print ("Error blocking SIGIO\n");
			return;
		} 
		else {
			public_slot_info* slot = (public_slot_info*) user_data->node_info;

			if ( (slot->is_hotpluggable && slot->power == 1 && function == ADD_ADAPTER) || 
			     (slot->is_hotpluggable && slot->power == 0 && function == REMOVE_ADAPTER) ) {
				if (function == ADD_ADAPTER)
				        sprintf(msg, "Slot %d: The device is already on.", selected_row);
				else
				        sprintf(msg, "Slot %d: The device is already off.", selected_row);
			       	gtk_statusbar_pop(GTK_STATUSBAR(status_bar), context_id);
		                gtk_statusbar_push(GTK_STATUSBAR(status_bar), context_id, msg);
				return;
			}
			
			if (function == ADD_ADAPTER) {
				stuff.type_of_request = ADD_BOARD;
			}
			else {
	                      	stuff.type_of_request = POWER_DOWN_BOARD;
			}	
	
		        stuff.physical_slot = selected_row;
			rt = ioctl(dev_hpc, GUI_BACK_DOOR, &stuff);     // rt = 0 is success
			
			build_tree((GtkCTree*)clist);
			gtk_ctree_select(tree, root_nodes[selected_row-1]);  // set focus on the appropriate parent
			clist->focus_row = -1;				// remove errant focus 
			gtk_widget_draw(GTK_WIDGET(clist), NULL);	// repaint 
		
			refresh_table(table, node);
	
			tmp_p_node = ctree_partner(tree, root_nodes[selected_row-1], slot_based);
			
			if (tmp_p_node->type == 0) {
				slot = (public_slot_info*) tmp_p_node->node_info;
	
				if (slot->is_hotpluggable) {
					if ( (rt == 0 && slot->power == 1 && function == ADD_ADAPTER) || 
					     (rt == 0 && slot->power == 0 && function == REMOVE_ADAPTER) ) {
						if (function == ADD_ADAPTER)
							sprintf(msg, "Slot %d: The device has been powered on.", selected_row);
						else
							sprintf(msg, "Slot %d: The device has been powered off.", selected_row);
						gtk_statusbar_pop(GTK_STATUSBAR(status_bar), context_id);
						gtk_statusbar_push(GTK_STATUSBAR(status_bar), context_id, msg);
					} 
					else {
						if (function == ADD_ADAPTER)
							sprintf(msg, "Slot %d: Problems occurred while powering on the device.", selected_row);
						else
							sprintf(msg, "Slot %d: Problems occurred while powering off the device.", selected_row);
						gtk_statusbar_pop(GTK_STATUSBAR(status_bar), context_id);
						gtk_statusbar_push(GTK_STATUSBAR(status_bar), context_id, msg);
					}
				}
			}
		}
	
		rt = sigprocmask(SIG_SETMASK, &backup, NULL); //restore mask
		if (rt < 0) {
			g_print ("Error unblocking SIGIO\n");
		} 
        }
}

// obtain the slot node and re-direct to the slot-based function
void set_adapter_from_adapter (int function, GtkCTree* tree, GtkCTreeNode* node, GtkWidget* table, GtkWidget* status_bar, pci_tree_node* user_data)
{
	GtkCTreeNode* parent_node;
	pci_tree_node* data;
	
	parent_node = get_parent(node);
	data = (pci_tree_node*) gtk_ctree_node_get_row_data(tree, parent_node);	
	set_adapter_from_slot (function, tree, parent_node, table, status_bar, data);
}

// obtain the slot node and re-direct to the slot-based function
void set_adapter_from_function (int function, GtkCTree* tree, GtkCTreeNode* node, GtkWidget* table, GtkWidget* status_bar, pci_tree_node* user_data)
{
	GtkCTreeNode* parent_node;
	pci_tree_node* data;
	
	parent_node = get_parent(node);
	data = (pci_tree_node*) gtk_ctree_node_get_row_data(tree, parent_node);	
	set_adapter_from_slot (function, tree, parent_node, table, status_bar, data);
}