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 #if defined(CONFIG_ISAPNP) || (defined(CONFIG_ISAPNP_MODULE) && defined(MODULE))
166
167 #define __ISAPNP__
168
169 /* lowlevel configuration */
170 int isapnp_present(void);
171 int isapnp_cfg_begin(int csn, int device);
172 int isapnp_cfg_end(void);
173 unsigned char isapnp_read_byte(unsigned char idx);
174 unsigned short isapnp_read_word(unsigned char idx);
175 unsigned int isapnp_read_dword(unsigned char idx);
176 void isapnp_write_byte(unsigned char idx, unsigned char val);
177 void isapnp_write_word(unsigned char idx, unsigned short val);
178 void isapnp_write_dword(unsigned char idx, unsigned int val);
179 void isapnp_wake(unsigned char csn);
180 void isapnp_device(unsigned char device);
181 void isapnp_activate(unsigned char device);
182 void isapnp_deactivate(unsigned char device);
183 void isapnp_fixup_device(struct pci_dev *dev);
184 void *isapnp_alloc(long size);
185 int isapnp_proc_init(void);
186 int isapnp_proc_done(void);
187 /* manager */
188 struct pci_bus *isapnp_find_card(unsigned short vendor,
189 unsigned short device,
190 struct pci_bus *from);
191 struct pci_dev *isapnp_find_dev(struct pci_bus *card,
192 unsigned short vendor,
193 unsigned short function,
194 struct pci_dev *from);
195 int isapnp_probe_cards(const struct isapnp_card_id *ids,
196 int (*probe)(struct pci_bus *card,
197 const struct isapnp_card_id *id));
198 int isapnp_probe_devs(const struct isapnp_device_id *ids,
199 int (*probe)(struct pci_dev *dev,
200 const struct isapnp_device_id *id));
201 /* misc */
202 void isapnp_resource_change(struct resource *resource,
203 unsigned long start,
204 unsigned long size);
205 int isapnp_activate_dev(struct pci_dev *dev, const char *name);
206 /* init/main.c */
207 int isapnp_init(void);
208
209 extern struct list_head isapnp_cards;
210 extern struct list_head isapnp_devices;
211
212 #define isapnp_for_each_card(card) \
213 for(card = pci_bus_b(isapnp_cards.next); card != pci_bus_b(&isapnp_cards); card = pci_bus_b(card->node.next))
214 #define isapnp_for_each_dev(dev) \
215 for(dev = pci_dev_g(isapnp_devices.next); dev != pci_dev_g(&isapnp_devices); dev = pci_dev_g(dev->global_list.next))
216
217 #else /* !CONFIG_ISAPNP */
218
219 /* lowlevel configuration */
220 extern inline int isapnp_present(void) { return 0; }
221 extern inline int isapnp_cfg_begin(int csn, int device) { return -ENODEV; }
222 extern inline int isapnp_cfg_end(void) { return -ENODEV; }
223 extern inline unsigned char isapnp_read_byte(unsigned char idx) { return 0xff; }
224 extern inline unsigned short isapnp_read_word(unsigned char idx) { return 0xffff; }
225 extern inline unsigned int isapnp_read_dword(unsigned char idx) { return 0xffffffff; }
226 extern inline void isapnp_write_byte(unsigned char idx, unsigned char val) { ; }
227 extern inline void isapnp_write_word(unsigned char idx, unsigned short val) { ; }
228 extern inline void isapnp_write_dword(unsigned char idx, unsigned int val) { ; }
229 extern inline void isapnp_wake(unsigned char csn) { ; }
230 extern inline void isapnp_device(unsigned char device) { ; }
231 extern inline void isapnp_activate(unsigned char device) { ; }
232 extern inline void isapnp_deactivate(unsigned char device) { ; }
233 /* manager */
234 extern inline struct pci_bus *isapnp_find_card(unsigned short vendor,
235 unsigned short device,
236 struct pci_bus *from) { return NULL; }
237 extern inline struct pci_dev *isapnp_find_dev(struct pci_bus *card,
238 unsigned short vendor,
239 unsigned short function,
240 struct pci_dev *from) { return NULL; }
241 extern inline int isapnp_probe_cards(const struct isapnp_card_id *ids,
242 int (*probe)(struct pci_bus *card,
243 const struct isapnp_card_id *id)) { return -ENODEV; }
244 extern inline int isapnp_probe_devs(const struct isapnp_device_id *ids,
245 int (*probe)(struct pci_dev *dev,
246 const struct isapnp_device_id *id)) { return -ENODEV; }
247 extern inline void isapnp_resource_change(struct resource *resource,
248 unsigned long start,
249 unsigned long size) { ; }
250 extern inline int isapnp_activate_dev(struct pci_dev *dev, const char *name) { return -ENODEV; }
251
252 #endif /* CONFIG_ISAPNP */
253
254 #endif /* __KERNEL__ */
255 #endif /* LINUX_ISAPNP_H */
256
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