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path: root/drivers/pnp/core.c
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-rw-r--r--drivers/pnp/core.c50
1 files changed, 13 insertions, 37 deletions
diff --git a/drivers/pnp/core.c b/drivers/pnp/core.c
index 8e7b2dd38810..61066fdb9e6d 100644
--- a/drivers/pnp/core.c
+++ b/drivers/pnp/core.c
@@ -2,7 +2,6 @@
2 * core.c - contains all core device and protocol registration functions 2 * core.c - contains all core device and protocol registration functions
3 * 3 *
4 * Copyright 2002 Adam Belay <ambx1@neo.rr.com> 4 * Copyright 2002 Adam Belay <ambx1@neo.rr.com>
5 *
6 */ 5 */
7 6
8#include <linux/pnp.h> 7#include <linux/pnp.h>
@@ -18,7 +17,6 @@
18 17
19#include "base.h" 18#include "base.h"
20 19
21
22static LIST_HEAD(pnp_protocols); 20static LIST_HEAD(pnp_protocols);
23LIST_HEAD(pnp_global); 21LIST_HEAD(pnp_global);
24DEFINE_SPINLOCK(pnp_lock); 22DEFINE_SPINLOCK(pnp_lock);
@@ -36,7 +34,7 @@ void *pnp_alloc(long size)
36 void *result; 34 void *result;
37 35
38 result = kzalloc(size, GFP_KERNEL); 36 result = kzalloc(size, GFP_KERNEL);
39 if (!result){ 37 if (!result) {
40 printk(KERN_ERR "pnp: Out of Memory\n"); 38 printk(KERN_ERR "pnp: Out of Memory\n");
41 return NULL; 39 return NULL;
42 } 40 }
@@ -49,11 +47,10 @@ void *pnp_alloc(long size)
49 * 47 *
50 * Ex protocols: ISAPNP, PNPBIOS, etc 48 * Ex protocols: ISAPNP, PNPBIOS, etc
51 */ 49 */
52
53int pnp_register_protocol(struct pnp_protocol *protocol) 50int pnp_register_protocol(struct pnp_protocol *protocol)
54{ 51{
55 int nodenum; 52 int nodenum;
56 struct list_head * pos; 53 struct list_head *pos;
57 54
58 if (!protocol) 55 if (!protocol)
59 return -EINVAL; 56 return -EINVAL;
@@ -64,9 +61,9 @@ int pnp_register_protocol(struct pnp_protocol *protocol)
64 spin_lock(&pnp_lock); 61 spin_lock(&pnp_lock);
65 62
66 /* assign the lowest unused number */ 63 /* assign the lowest unused number */
67 list_for_each(pos,&pnp_protocols) { 64 list_for_each(pos, &pnp_protocols) {
68 struct pnp_protocol * cur = to_pnp_protocol(pos); 65 struct pnp_protocol *cur = to_pnp_protocol(pos);
69 if (cur->number == nodenum){ 66 if (cur->number == nodenum) {
70 pos = &pnp_protocols; 67 pos = &pnp_protocols;
71 nodenum++; 68 nodenum++;
72 } 69 }
@@ -83,7 +80,6 @@ int pnp_register_protocol(struct pnp_protocol *protocol)
83/** 80/**
84 * pnp_protocol_unregister - removes a pnp protocol from the pnp layer 81 * pnp_protocol_unregister - removes a pnp protocol from the pnp layer
85 * @protocol: pointer to the corresponding pnp_protocol structure 82 * @protocol: pointer to the corresponding pnp_protocol structure
86 *
87 */ 83 */
88void pnp_unregister_protocol(struct pnp_protocol *protocol) 84void pnp_unregister_protocol(struct pnp_protocol *protocol)
89{ 85{
@@ -93,11 +89,11 @@ void pnp_unregister_protocol(struct pnp_protocol *protocol)
93 device_unregister(&protocol->dev); 89 device_unregister(&protocol->dev);
94} 90}
95 91
96
97static void pnp_free_ids(struct pnp_dev *dev) 92static void pnp_free_ids(struct pnp_dev *dev)
98{ 93{
99 struct pnp_id * id; 94 struct pnp_id *id;
100 struct pnp_id * next; 95 struct pnp_id *next;
96
101 if (!dev) 97 if (!dev)
102 return; 98 return;
103 id = dev->id; 99 id = dev->id;
@@ -110,7 +106,8 @@ static void pnp_free_ids(struct pnp_dev *dev)
110 106
111static void pnp_release_device(struct device *dmdev) 107static void pnp_release_device(struct device *dmdev)
112{ 108{
113 struct pnp_dev * dev = to_pnp_dev(dmdev); 109 struct pnp_dev *dev = to_pnp_dev(dmdev);
110
114 pnp_free_option(dev->independent); 111 pnp_free_option(dev->independent);
115 pnp_free_option(dev->dependent); 112 pnp_free_option(dev->dependent);
116 pnp_free_ids(dev); 113 pnp_free_ids(dev);
@@ -120,6 +117,7 @@ static void pnp_release_device(struct device *dmdev)
120int __pnp_add_device(struct pnp_dev *dev) 117int __pnp_add_device(struct pnp_dev *dev)
121{ 118{
122 int ret; 119 int ret;
120
123 pnp_fixup_device(dev); 121 pnp_fixup_device(dev);
124 dev->dev.bus = &pnp_bus_type; 122 dev->dev.bus = &pnp_bus_type;
125 dev->dev.dma_mask = &dev->dma_mask; 123 dev->dev.dma_mask = &dev->dma_mask;
@@ -143,13 +141,13 @@ int __pnp_add_device(struct pnp_dev *dev)
143 * 141 *
144 * adds to driver model, name database, fixups, interface, etc. 142 * adds to driver model, name database, fixups, interface, etc.
145 */ 143 */
146
147int pnp_add_device(struct pnp_dev *dev) 144int pnp_add_device(struct pnp_dev *dev)
148{ 145{
149 if (!dev || !dev->protocol || dev->card) 146 if (!dev || !dev->protocol || dev->card)
150 return -EINVAL; 147 return -EINVAL;
151 dev->dev.parent = &dev->protocol->dev; 148 dev->dev.parent = &dev->protocol->dev;
152 sprintf(dev->dev.bus_id, "%02x:%02x", dev->protocol->number, dev->number); 149 sprintf(dev->dev.bus_id, "%02x:%02x", dev->protocol->number,
150 dev->number);
153 return __pnp_add_device(dev); 151 return __pnp_add_device(dev);
154} 152}
155 153
@@ -162,21 +160,6 @@ void __pnp_remove_device(struct pnp_dev *dev)
162 device_unregister(&dev->dev); 160 device_unregister(&dev->dev);
163} 161}
164 162
165/**
166 * pnp_remove_device - removes a pnp device from the pnp layer
167 * @dev: pointer to dev to add
168 *
169 * this function will free all mem used by dev
170 */
171#if 0
172void pnp_remove_device(struct pnp_dev *dev)
173{
174 if (!dev || dev->card)
175 return;
176 __pnp_remove_device(dev);
177}
178#endif /* 0 */
179
180static int __init pnp_init(void) 163static int __init pnp_init(void)
181{ 164{
182 printk(KERN_INFO "Linux Plug and Play Support v0.97 (c) Adam Belay\n"); 165 printk(KERN_INFO "Linux Plug and Play Support v0.97 (c) Adam Belay\n");
@@ -184,10 +167,3 @@ static int __init pnp_init(void)
184} 167}
185 168
186subsys_initcall(pnp_init); 169subsys_initcall(pnp_init);
187
188#if 0
189EXPORT_SYMBOL(pnp_register_protocol);
190EXPORT_SYMBOL(pnp_unregister_protocol);
191EXPORT_SYMBOL(pnp_add_device);
192EXPORT_SYMBOL(pnp_remove_device);
193#endif /* 0 */