cpqphp_sysfs.c (a8b3e6f10f08f66ae1072efd087b30966a3654f6) | cpqphp_sysfs.c (9f3f4681291fc88864bb27f8f3832b95bb53aae5) |
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1/* 2 * Compaq Hot Plug Controller Driver 3 * 4 * Copyright (C) 1995,2001 Compaq Computer Corporation 5 * Copyright (C) 2001,2003 Greg Kroah-Hartman (greg@kroah.com) 6 * Copyright (C) 2001 IBM Corp. 7 * 8 * All rights reserved. --- 19 unchanged lines hidden (view full) --- 28 29#include <linux/config.h> 30#include <linux/module.h> 31#include <linux/kernel.h> 32#include <linux/types.h> 33#include <linux/proc_fs.h> 34#include <linux/workqueue.h> 35#include <linux/pci.h> | 1/* 2 * Compaq Hot Plug Controller Driver 3 * 4 * Copyright (C) 1995,2001 Compaq Computer Corporation 5 * Copyright (C) 2001,2003 Greg Kroah-Hartman (greg@kroah.com) 6 * Copyright (C) 2001 IBM Corp. 7 * 8 * All rights reserved. --- 19 unchanged lines hidden (view full) --- 28 29#include <linux/config.h> 30#include <linux/module.h> 31#include <linux/kernel.h> 32#include <linux/types.h> 33#include <linux/proc_fs.h> 34#include <linux/workqueue.h> 35#include <linux/pci.h> |
36#include <linux/debugfs.h> |
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36#include "cpqphp.h" 37 | 37#include "cpqphp.h" 38 |
38 39/* A few routines that create sysfs entries for the hot plug controller */ 40 41static ssize_t show_ctrl (struct device *dev, struct device_attribute *attr, char *buf) | 39static int show_ctrl (struct controller *ctrl, char *buf) |
42{ | 40{ |
43 struct pci_dev *pci_dev; 44 struct controller *ctrl; 45 char * out = buf; | 41 char *out = buf; |
46 int index; 47 struct pci_resource *res; 48 | 42 int index; 43 struct pci_resource *res; 44 |
49 pci_dev = container_of (dev, struct pci_dev, dev); 50 ctrl = pci_get_drvdata(pci_dev); 51 | |
52 out += sprintf(buf, "Free resources: memory\n"); 53 index = 11; 54 res = ctrl->mem_head; 55 while (res && index--) { 56 out += sprintf(out, "start = %8.8x, length = %8.8x\n", res->base, res->length); 57 res = res->next; 58 } 59 out += sprintf(out, "Free resources: prefetchable memory\n"); --- 15 unchanged lines hidden (view full) --- 75 res = ctrl->bus_head; 76 while (res && index--) { 77 out += sprintf(out, "start = %8.8x, length = %8.8x\n", res->base, res->length); 78 res = res->next; 79 } 80 81 return out - buf; 82} | 45 out += sprintf(buf, "Free resources: memory\n"); 46 index = 11; 47 res = ctrl->mem_head; 48 while (res && index--) { 49 out += sprintf(out, "start = %8.8x, length = %8.8x\n", res->base, res->length); 50 res = res->next; 51 } 52 out += sprintf(out, "Free resources: prefetchable memory\n"); --- 15 unchanged lines hidden (view full) --- 68 res = ctrl->bus_head; 69 while (res && index--) { 70 out += sprintf(out, "start = %8.8x, length = %8.8x\n", res->base, res->length); 71 res = res->next; 72 } 73 74 return out - buf; 75} |
83static DEVICE_ATTR (ctrl, S_IRUGO, show_ctrl, NULL); | |
84 | 76 |
85static ssize_t show_dev (struct device *dev, struct device_attribute *attr, char *buf) | 77static int show_dev (struct controller *ctrl, char *buf) |
86{ | 78{ |
87 struct pci_dev *pci_dev; 88 struct controller *ctrl; | |
89 char * out = buf; 90 int index; 91 struct pci_resource *res; 92 struct pci_func *new_slot; 93 struct slot *slot; 94 | 79 char * out = buf; 80 int index; 81 struct pci_resource *res; 82 struct pci_func *new_slot; 83 struct slot *slot; 84 |
95 pci_dev = container_of (dev, struct pci_dev, dev); 96 ctrl = pci_get_drvdata(pci_dev); | 85 slot = ctrl->slot; |
97 | 86 |
98 slot=ctrl->slot; 99 | |
100 while (slot) { 101 new_slot = cpqhp_slot_find(slot->bus, slot->device, 0); 102 if (!new_slot) 103 break; 104 out += sprintf(out, "assigned resources: memory\n"); 105 index = 11; 106 res = new_slot->mem_head; 107 while (res && index--) { --- 21 unchanged lines hidden (view full) --- 129 out += sprintf(out, "start = %8.8x, length = %8.8x\n", res->base, res->length); 130 res = res->next; 131 } 132 slot=slot->next; 133 } 134 135 return out - buf; 136} | 87 while (slot) { 88 new_slot = cpqhp_slot_find(slot->bus, slot->device, 0); 89 if (!new_slot) 90 break; 91 out += sprintf(out, "assigned resources: memory\n"); 92 index = 11; 93 res = new_slot->mem_head; 94 while (res && index--) { --- 21 unchanged lines hidden (view full) --- 116 out += sprintf(out, "start = %8.8x, length = %8.8x\n", res->base, res->length); 117 res = res->next; 118 } 119 slot=slot->next; 120 } 121 122 return out - buf; 123} |
137static DEVICE_ATTR (dev, S_IRUGO, show_dev, NULL); | |
138 | 124 |
139void cpqhp_create_ctrl_files (struct controller *ctrl) | 125static int spew_debug_info(struct controller *ctrl, char *data, int size) |
140{ | 126{ |
141 device_create_file (&ctrl->pci_dev->dev, &dev_attr_ctrl); 142 device_create_file (&ctrl->pci_dev->dev, &dev_attr_dev); | 127 int used; 128 129 used = size - show_ctrl(ctrl, data); 130 used = (size - used) - show_dev(ctrl, &data[used]); 131 return used; |
143} | 132} |
133 134struct ctrl_dbg { 135 int size; 136 char *data; 137 struct controller *ctrl; 138}; 139 140#define MAX_OUTPUT (4*PAGE_SIZE) 141 142static int open(struct inode *inode, struct file *file) 143{ 144 struct controller *ctrl = inode->u.generic_ip; 145 struct ctrl_dbg *dbg; 146 int retval = -ENOMEM; 147 148 lock_kernel(); 149 dbg = kmalloc(sizeof(*dbg), GFP_KERNEL); 150 if (!dbg) 151 goto exit; 152 dbg->data = kmalloc(MAX_OUTPUT, GFP_KERNEL); 153 if (!dbg->data) { 154 kfree(dbg); 155 goto exit; 156 } 157 dbg->size = spew_debug_info(ctrl, dbg->data, MAX_OUTPUT); 158 file->private_data = dbg; 159 retval = 0; 160exit: 161 unlock_kernel(); 162 return retval; 163} 164 165static loff_t lseek(struct file *file, loff_t off, int whence) 166{ 167 struct ctrl_dbg *dbg; 168 loff_t new = -1; 169 170 lock_kernel(); 171 dbg = file->private_data; 172 173 switch (whence) { 174 case 0: 175 new = off; 176 break; 177 case 1: 178 new = file->f_pos + off; 179 break; 180 } 181 if (new < 0 || new > dbg->size) { 182 unlock_kernel(); 183 return -EINVAL; 184 } 185 unlock_kernel(); 186 return (file->f_pos = new); 187} 188 189static ssize_t read(struct file *file, char __user *buf, 190 size_t nbytes, loff_t *ppos) 191{ 192 struct ctrl_dbg *dbg = file->private_data; 193 return simple_read_from_buffer(buf, nbytes, ppos, dbg->data, dbg->size); 194} 195 196static int release(struct inode *inode, struct file *file) 197{ 198 struct ctrl_dbg *dbg = file->private_data; 199 200 kfree(dbg->data); 201 kfree(dbg); 202 return 0; 203} 204 205static struct file_operations debug_ops = { 206 .owner = THIS_MODULE, 207 .open = open, 208 .llseek = lseek, 209 .read = read, 210 .release = release, 211}; 212 213static struct dentry *root; 214 215void cpqhp_initialize_debugfs(void) 216{ 217 if (!root) 218 root = debugfs_create_dir("cpqhp", NULL); 219} 220 221void cpqhp_shutdown_debugfs(void) 222{ 223 debugfs_remove(root); 224} 225 226void cpqhp_create_debugfs_files(struct controller *ctrl) 227{ 228 ctrl->dentry = debugfs_create_file(ctrl->pci_dev->dev.bus_id, S_IRUGO, root, ctrl, &debug_ops); 229} 230 231void cpqhp_remove_debugfs_files(struct controller *ctrl) 232{ 233 if (ctrl->dentry) 234 debugfs_remove(ctrl->dentry); 235 ctrl->dentry = NULL; 236} 237 |
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