2 * RPA Virtual I/O device functions
3 * Copyright (C) 2004 Linda Xie <lxie@us.ibm.com>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or (at
10 * your option) any later version.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
15 * NON INFRINGEMENT. See the GNU General Public License for more
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 * Send feedback to <lxie@us.ibm.com>
25 #include <linux/kernel.h>
26 #include <linux/module.h>
27 #include <linux/kobject.h>
28 #include <linux/sysfs.h>
29 #include <linux/pci.h>
32 static ssize_t location_read_file (struct hotplug_slot *php_slot, char *buf)
36 struct slot *slot = (struct slot *)php_slot->private;
41 value = slot->location;
42 retval = sprintf (buf, "%s\n", value);
46 static struct hotplug_slot_attribute hotplug_slot_attr_location = {
47 .attr = {.name = "phy_location", .mode = S_IFREG | S_IRUGO},
48 .show = location_read_file,
51 static void rpaphp_sysfs_add_attr_location (struct hotplug_slot *slot)
53 sysfs_create_file(&slot->kobj, &hotplug_slot_attr_location.attr);
56 void rpaphp_sysfs_remove_attr_location (struct hotplug_slot *slot)
58 sysfs_remove_file(&slot->kobj, &hotplug_slot_attr_location.attr);
61 /* free up the memory used by a slot */
62 static void rpaphp_release_slot(struct hotplug_slot *hotplug_slot)
64 struct slot *slot = (struct slot *) hotplug_slot->private;
66 dealloc_slot_struct(slot);
69 void dealloc_slot_struct(struct slot *slot)
71 kfree(slot->hotplug_slot->info);
72 kfree(slot->hotplug_slot->name);
73 kfree(slot->hotplug_slot);
78 struct slot *alloc_slot_struct(struct device_node *dn, int drc_index, char *drc_name,
83 slot = kmalloc(sizeof (struct slot), GFP_KERNEL);
86 memset(slot, 0, sizeof (struct slot));
87 slot->hotplug_slot = kmalloc(sizeof (struct hotplug_slot), GFP_KERNEL);
88 if (!slot->hotplug_slot)
90 memset(slot->hotplug_slot, 0, sizeof (struct hotplug_slot));
91 slot->hotplug_slot->info = kmalloc(sizeof (struct hotplug_slot_info),
93 if (!slot->hotplug_slot->info)
95 memset(slot->hotplug_slot->info, 0, sizeof (struct hotplug_slot_info));
96 slot->hotplug_slot->name = kmalloc(BUS_ID_SIZE + 1, GFP_KERNEL);
97 if (!slot->hotplug_slot->name)
99 slot->location = kmalloc(strlen(drc_name) + 1, GFP_KERNEL);
102 slot->name = slot->hotplug_slot->name;
104 slot->index = drc_index;
105 strcpy(slot->location, drc_name);
106 slot->power_domain = power_domain;
107 slot->hotplug_slot->private = slot;
108 slot->hotplug_slot->ops = &rpaphp_hotplug_slot_ops;
109 slot->hotplug_slot->release = &rpaphp_release_slot;
110 slot->hotplug_slot->info->cur_bus_speed = PCI_SPEED_UNKNOWN;
115 kfree(slot->hotplug_slot->name);
117 kfree(slot->hotplug_slot->info);
119 kfree(slot->hotplug_slot);
126 int register_slot(struct slot *slot)
129 char *vio_uni_addr = NULL;
131 dbg("%s registering slot:path[%s] index[%x], name[%s] pdomain[%x] type[%d]\n",
132 __FUNCTION__, slot->dn->full_name, slot->index, slot->name,
133 slot->power_domain, slot->type);
135 retval = pci_hp_register(slot->hotplug_slot);
137 err("pci_hp_register failed with error %d\n", retval);
138 rpaphp_release_slot(slot->hotplug_slot);
142 /* create "phy_locatoin" file */
143 rpaphp_sysfs_add_attr_location(slot->hotplug_slot);
145 /* add slot to our internal list */
146 dbg("%s adding slot[%s] to rpaphp_slot_list\n",
147 __FUNCTION__, slot->name);
149 list_add(&slot->rpaphp_slot_list, &rpaphp_slot_head);
152 info("Slot [%s](vio_uni_addr=%s) registered\n",
153 slot->name, vio_uni_addr);
155 info("Slot [%s](bus_id=%s) registered\n",
156 slot->name, pci_name(slot->bridge));
161 int rpaphp_get_power_status(struct slot *slot, u8 * value)
165 rc = rtas_get_power_level(slot->power_domain, (int *) value);
167 err("failed to get power-level for slot(%s), rc=0x%x\n",
173 int rpaphp_set_attention_status(struct slot *slot, u8 status)
177 /* status: LED_OFF or LED_ON */
178 rc = rtas_set_indicator(DR_INDICATOR, slot->index, status);
180 err("slot(%s) set attention-status(%d) failed! rc=0x%x\n",
181 slot->name, status, rc);