1 /* SPDX-License-Identifier: GPL-2.0 */ <<
2 /* 1 /*
3 * ISA bus. 2 * ISA bus.
4 */ 3 */
5 4
6 #ifndef __LINUX_ISA_H 5 #ifndef __LINUX_ISA_H
7 #define __LINUX_ISA_H 6 #define __LINUX_ISA_H
8 7
9 #include <linux/device.h> 8 #include <linux/device.h>
10 #include <linux/errno.h> <<
11 #include <linux/kernel.h> 9 #include <linux/kernel.h>
12 10
13 struct isa_driver { 11 struct isa_driver {
14 int (*match)(struct device *, unsigned 12 int (*match)(struct device *, unsigned int);
15 int (*probe)(struct device *, unsigned 13 int (*probe)(struct device *, unsigned int);
16 void (*remove)(struct device *, unsign !! 14 int (*remove)(struct device *, unsigned int);
17 void (*shutdown)(struct device *, unsi 15 void (*shutdown)(struct device *, unsigned int);
18 int (*suspend)(struct device *, unsign 16 int (*suspend)(struct device *, unsigned int, pm_message_t);
19 int (*resume)(struct device *, unsigne 17 int (*resume)(struct device *, unsigned int);
20 18
21 struct device_driver driver; 19 struct device_driver driver;
22 struct device *devices; 20 struct device *devices;
23 }; 21 };
24 22
25 #define to_isa_driver(x) container_of((x), str 23 #define to_isa_driver(x) container_of((x), struct isa_driver, driver)
26 24
27 #ifdef CONFIG_ISA_BUS_API !! 25 #ifdef CONFIG_ISA
28 int isa_register_driver(struct isa_driver *, u 26 int isa_register_driver(struct isa_driver *, unsigned int);
29 void isa_unregister_driver(struct isa_driver * 27 void isa_unregister_driver(struct isa_driver *);
30 #else 28 #else
31 static inline int isa_register_driver(struct i 29 static inline int isa_register_driver(struct isa_driver *d, unsigned int i)
32 { 30 {
33 return -ENODEV; !! 31 return 0;
34 } 32 }
35 33
36 static inline void isa_unregister_driver(struc 34 static inline void isa_unregister_driver(struct isa_driver *d)
37 { 35 {
38 } 36 }
39 #endif 37 #endif
40 <<
41 #define module_isa_driver_init(__isa_driver, _ <<
42 static int __init __isa_driver##_init(void) \ <<
43 { \ <<
44 return isa_register_driver(&(__isa_dri <<
45 } \ <<
46 module_init(__isa_driver##_init) <<
47 <<
48 #define module_isa_driver_with_irq_init(__isa_ <<
49 static int __init __isa_driver##_init(void) \ <<
50 { \ <<
51 if (__num_irq != __num_isa_dev) { \ <<
52 pr_err("%s: Number of irq (%u) <<
53 __isa_driver.driver.nam <<
54 return -EINVAL; \ <<
55 } \ <<
56 return isa_register_driver(&(__isa_dri <<
57 } \ <<
58 module_init(__isa_driver##_init) <<
59 <<
60 #define module_isa_driver_exit(__isa_driver) \ <<
61 static void __exit __isa_driver##_exit(void) \ <<
62 { \ <<
63 isa_unregister_driver(&(__isa_driver)) <<
64 } \ <<
65 module_exit(__isa_driver##_exit) <<
66 <<
67 /** <<
68 * module_isa_driver() - Helper macro for regi <<
69 * @__isa_driver: isa_driver struct <<
70 * @__num_isa_dev: number of devices to regist <<
71 * <<
72 * Helper macro for ISA drivers which do not d <<
73 * init/exit. This eliminates a lot of boilerp <<
74 * use this macro once, and calling it replace <<
75 */ <<
76 #define module_isa_driver(__isa_driver, __num_ <<
77 module_isa_driver_init(__isa_driver, __num_isa <<
78 module_isa_driver_exit(__isa_driver) <<
79 <<
80 /** <<
81 * module_isa_driver_with_irq() - Helper macro <<
82 * @__isa_driver: isa_driver struct <<
83 * @__num_isa_dev: number of devices to regist <<
84 * @__num_irq: number of IRQ to register <<
85 * <<
86 * Helper macro for ISA drivers with irq that <<
87 * module init/exit. Each module may only use <<
88 * replaces module_init and module_exit. <<
89 */ <<
90 #define module_isa_driver_with_irq(__isa_drive <<
91 module_isa_driver_with_irq_init(__isa_driver, <<
92 module_isa_driver_exit(__isa_driver) <<
93 <<
94 /** <<
95 * max_num_isa_dev() - Maximum possible number <<
96 * @__ida_dev_ext: ISA device address extent <<
97 * <<
98 * The highest base address possible for an IS <<
99 * 1024 possible base addresses. Dividing the <<
100 * by the address extent taken by each device <<
101 * devices on a system. <<
102 */ <<
103 #define max_num_isa_dev(__isa_dev_ext) (1024 / <<
104 38
105 #endif /* __LINUX_ISA_H */ 39 #endif /* __LINUX_ISA_H */
106 40
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