1 /*
2 * ISA Plug & Play support
3 * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
4 *
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 *
20 */
21
22 #ifndef LINUX_ISAPNP_H
23 #define LINUX_ISAPNP_H
24
25 #include <linux/config.h>
26 #include <linux/errno.h>
27
28 /*
29 * Configuration registers (TODO: change by specification)
30 */
31
32 #define ISAPNP_CFG_ACTIVATE 0x30 /* byte */
33 #define ISAPNP_CFG_MEM 0x40 /* 4 * dword */
34 #define ISAPNP_CFG_PORT 0x60 /* 8 * word */
35 #define ISAPNP_CFG_IRQ 0x70 /* 2 * word */
36 #define ISAPNP_CFG_DMA 0x74 /* 2 * byte */
37
38 /*
39 *
40 */
41
42 #define ISAPNP_VENDOR(a,b,c) (((((a)-'A'+1)&0x3f)<<2)|\
43 ((((b)-'A'+1)&0x18)>>3)|((((b)-'A'+1)&7)<<13)|\
44 ((((c)-'A'+1)&0x1f)<<8))
45 #define ISAPNP_DEVICE(x) ((((x)&0xf000)>>8)|\
46 (((x)&0x0f00)>>8)|\
47 (((x)&0x00f0)<<8)|\
48 (((x)&0x000f)<<8))
49 #define ISAPNP_FUNCTION(x) ISAPNP_DEVICE(x)
50
51 /*
52 *
53 */
54
55 #ifdef __KERNEL__
56
57 #include <linux/pci.h>
58
59 #define ISAPNP_PORT_FLAG_16BITADDR (1<<0)
60 #define ISAPNP_PORT_FLAG_FIXED (1<<1)
61
62 struct isapnp_port {
63 unsigned short min; /* min base number */
64 unsigned short max; /* max base number */
65 unsigned char align; /* align boundary */
66 unsigned char size; /* size of range */
67 unsigned char flags; /* port flags */
68 unsigned char pad; /* pad */
69 struct isapnp_resources *res; /* parent */
70 struct isapnp_port *next; /* next port */
71 };
72
73 struct isapnp_irq {
74 unsigned short map; /* bitmaks for IRQ lines */
75 unsigned char flags; /* IRQ flags */
76 unsigned char pad; /* pad */
77 struct isapnp_resources *res; /* parent */
78 struct isapnp_irq *next; /* next IRQ */
79 };
80
81 struct isapnp_dma {
82 unsigned char map; /* bitmask for DMA channels */
83 unsigned char flags; /* DMA flags */
84 struct isapnp_resources *res; /* parent */
85 struct isapnp_dma *next; /* next port */
86 };
87
88 struct isapnp_mem {
89 unsigned int min; /* min base number */
90 unsigned int max; /* max base number */
91 unsigned int align; /* align boundary */
92 unsigned int size; /* size of range */
93 unsigned char flags; /* memory flags */
94 unsigned char pad; /* pad */
95 struct isapnp_resources *res; /* parent */
96 struct isapnp_mem *next; /* next memory resource */
97 };
98
99 struct isapnp_mem32 {
100 /* TODO */
101 unsigned char data[17];
102 struct isapnp_resources *res; /* parent */
103 struct isapnp_mem32 *next; /* next 32-bit memory resource */
104 };
105
106 struct isapnp_fixup {
107 unsigned short vendor; /* matching vendor */
108 unsigned short device; /* matching device */
109 void (*quirk_function)(struct pci_dev *dev); /* fixup function */
110 };
111
112
113 #define ISAPNP_RES_PRIORITY_PREFERRED 0
114 #define ISAPNP_RES_PRIORITY_ACCEPTABLE 1
115 #define ISAPNP_RES_PRIORITY_FUNCTIONAL 2
116 #define ISAPNP_RES_PRIORITY_INVALID 65535
117
118 struct isapnp_resources {
119 unsigned short priority; /* priority */
120 unsigned short dependent; /* dependent resources */
121 struct isapnp_port *port; /* first port */
122 struct isapnp_irq *irq; /* first IRQ */
123 struct isapnp_dma *dma; /* first DMA */
124 struct isapnp_mem *mem; /* first memory resource */
125 struct isapnp_mem32 *mem32; /* first 32-bit memory */
126 struct pci_dev *dev; /* parent */
127 struct isapnp_resources *alt; /* alternative resource (aka dependent resources) */
128 struct isapnp_resources *next; /* next resource */
129 };
130
131 #define ISAPNP_ANY_ID 0xffff
132 #define ISAPNP_CARD_DEVS 8
133
134 #define ISAPNP_CARD_ID(_va, _vb, _vc, _device) \
135 card_vendor: ISAPNP_VENDOR(_va, _vb, _vc), card_device: ISAPNP_DEVICE(_device)
136 #define ISAPNP_CARD_END \
137 card_vendor: 0, card_device: 0
138 #define ISAPNP_DEVICE_ID(_va, _vb, _vc, _function) \
139 { vendor: ISAPNP_VENDOR(_va, _vb, _vc), function: ISAPNP_FUNCTION(_function) }
140
141 /* export used IDs outside module */
142 #define ISAPNP_CARD_TABLE(name) \
143 MODULE_GENERIC_TABLE(isapnp_card, name)
144
145 struct isapnp_card_id {
146 unsigned long driver_data; /* data private to the driver */
147 unsigned short card_vendor, card_device;
148 struct {
149 unsigned short vendor, function;
150 } devs[ISAPNP_CARD_DEVS]; /* logical devices */
151 };
152
153 #define ISAPNP_DEVICE_SINGLE(_cva, _cvb, _cvc, _cdevice, _dva, _dvb, _dvc, _dfunction) \
154 card_vendor: ISAPNP_VENDOR(_cva, _cvb, _cvc), card_device: ISAPNP_DEVICE(_cdevice), \
155 vendor: ISAPNP_VENDOR(_dva, _dvb, _dvc), function: ISAPNP_FUNCTION(_dfunction)
156 #define ISAPNP_DEVICE_SINGLE_END \
157 card_vendor: 0, card_device: 0
158
159 struct isapnp_device_id {
160 unsigned short card_vendor, card_device;
161 unsigned short vendor, function;
162 unsigned long driver_data; /* data private to the driver */
163 };
164
165 struct isapnp_driver {
166 struct list_head node;
167 char *name;
168 const struct isapnp_device_id *id_table; /* NULL if wants all devices */
169 int (*probe) (struct pci_dev *dev, const struct isapnp_device_id *id); /* New device inserted */
170 void (*remove) (struct pci_dev *dev); /* Device removed (NULL if not a hot-plug capable driver) */
171 };
172
173 #if defined(CONFIG_ISAPNP) || (defined(CONFIG_ISAPNP_MODULE) && defined(MODULE))
174
175 #define __ISAPNP__
176
177 /* lowlevel configuration */
178 int isapnp_present(void);
179 int isapnp_cfg_begin(int csn, int device);
180 int isapnp_cfg_end(void);
181 unsigned char isapnp_read_byte(unsigned char idx);
182 unsigned short isapnp_read_word(unsigned char idx);
183 unsigned int isapnp_read_dword(unsigned char idx);
184 void isapnp_write_byte(unsigned char idx, unsigned char val);
185 void isapnp_write_word(unsigned char idx, unsigned short val);
186 void isapnp_write_dword(unsigned char idx, unsigned int val);
187 void isapnp_wake(unsigned char csn);
188 void isapnp_device(unsigned char device);
189 void isapnp_activate(unsigned char device);
190 void isapnp_deactivate(unsigned char device);
191 void isapnp_fixup_device(struct pci_dev *dev);
192 void *isapnp_alloc(long size);
193 int isapnp_proc_init(void);
194 int isapnp_proc_done(void);
195 /* manager */
196 struct pci_bus *isapnp_find_card(unsigned short vendor,
197 unsigned short device,
198 struct pci_bus *from);
199 struct pci_dev *isapnp_find_dev(struct pci_bus *card,
200 unsigned short vendor,
201 unsigned short function,
202 struct pci_dev *from);
203 int isapnp_probe_cards(const struct isapnp_card_id *ids,
204 int (*probe)(struct pci_bus *card,
205 const struct isapnp_card_id *id));
206 int isapnp_probe_devs(const struct isapnp_device_id *ids,
207 int (*probe)(struct pci_dev *dev,
208 const struct isapnp_device_id *id));
209 /* misc */
210 void isapnp_resource_change(struct resource *resource,
211 unsigned long start,
212 unsigned long size);
213 int isapnp_activate_dev(struct pci_dev *dev, const char *name);
214 /* init/main.c */
215 int isapnp_init(void);
216
217 extern struct list_head isapnp_cards;
218 extern struct list_head isapnp_devices;
219
220 #define isapnp_for_each_card(card) \
221 for(card = pci_bus_b(isapnp_cards.next); card != pci_bus_b(&isapnp_cards); card = pci_bus_b(card->node.next))
222 #define isapnp_for_each_dev(dev) \
223 for(dev = pci_dev_g(isapnp_devices.next); dev != pci_dev_g(&isapnp_devices); dev = pci_dev_g(dev->global_list.next))
224
225 int isapnp_register_driver(struct isapnp_driver *drv);
226 void isapnp_unregister_driver(struct isapnp_driver *drv);
227
228 #else /* !CONFIG_ISAPNP */
229
230 /* lowlevel configuration */
isapnp_present(void)231 static inline int isapnp_present(void) { return 0; }
isapnp_cfg_begin(int csn,int device)232 static inline int isapnp_cfg_begin(int csn, int device) { return -ENODEV; }
isapnp_cfg_end(void)233 static inline int isapnp_cfg_end(void) { return -ENODEV; }
isapnp_read_byte(unsigned char idx)234 static inline unsigned char isapnp_read_byte(unsigned char idx) { return 0xff; }
isapnp_read_word(unsigned char idx)235 static inline unsigned short isapnp_read_word(unsigned char idx) { return 0xffff; }
isapnp_read_dword(unsigned char idx)236 static inline unsigned int isapnp_read_dword(unsigned char idx) { return 0xffffffff; }
isapnp_write_byte(unsigned char idx,unsigned char val)237 static inline void isapnp_write_byte(unsigned char idx, unsigned char val) { ; }
isapnp_write_word(unsigned char idx,unsigned short val)238 static inline void isapnp_write_word(unsigned char idx, unsigned short val) { ; }
isapnp_write_dword(unsigned char idx,unsigned int val)239 static inline void isapnp_write_dword(unsigned char idx, unsigned int val) { ; }
isapnp_wake(unsigned char csn)240 static inline void isapnp_wake(unsigned char csn) { ; }
isapnp_device(unsigned char device)241 static inline void isapnp_device(unsigned char device) { ; }
isapnp_activate(unsigned char device)242 static inline void isapnp_activate(unsigned char device) { ; }
isapnp_deactivate(unsigned char device)243 static inline void isapnp_deactivate(unsigned char device) { ; }
244 /* manager */
isapnp_find_card(unsigned short vendor,unsigned short device,struct pci_bus * from)245 static inline struct pci_bus *isapnp_find_card(unsigned short vendor,
246 unsigned short device,
247 struct pci_bus *from) { return NULL; }
isapnp_find_dev(struct pci_bus * card,unsigned short vendor,unsigned short function,struct pci_dev * from)248 static inline struct pci_dev *isapnp_find_dev(struct pci_bus *card,
249 unsigned short vendor,
250 unsigned short function,
251 struct pci_dev *from) { return NULL; }
isapnp_probe_cards(const struct isapnp_card_id * ids,int (* probe)(struct pci_bus * card,const struct isapnp_card_id * id))252 static inline int isapnp_probe_cards(const struct isapnp_card_id *ids,
253 int (*probe)(struct pci_bus *card,
254 const struct isapnp_card_id *id)) { return -ENODEV; }
isapnp_probe_devs(const struct isapnp_device_id * ids,int (* probe)(struct pci_dev * dev,const struct isapnp_device_id * id))255 static inline int isapnp_probe_devs(const struct isapnp_device_id *ids,
256 int (*probe)(struct pci_dev *dev,
257 const struct isapnp_device_id *id)) { return -ENODEV; }
isapnp_resource_change(struct resource * resource,unsigned long start,unsigned long size)258 static inline void isapnp_resource_change(struct resource *resource,
259 unsigned long start,
260 unsigned long size) { ; }
isapnp_activate_dev(struct pci_dev * dev,const char * name)261 static inline int isapnp_activate_dev(struct pci_dev *dev, const char *name) { return -ENODEV; }
262
isapnp_register_driver(struct isapnp_driver * drv)263 static inline int isapnp_register_driver(struct isapnp_driver *drv) { return 0; }
264
isapnp_unregister_driver(struct isapnp_driver * drv)265 static inline void isapnp_unregister_driver(struct isapnp_driver *drv) { }
266
267 #endif /* CONFIG_ISAPNP */
268
269 #endif /* __KERNEL__ */
270 #endif /* LINUX_ISAPNP_H */
271