1 /* SPDX-License-Identifier: GPL-2.0 */ 1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _LINUX_EISA_H 2 #ifndef _LINUX_EISA_H
3 #define _LINUX_EISA_H 3 #define _LINUX_EISA_H
4 4
5 #include <linux/ioport.h> 5 #include <linux/ioport.h>
6 #include <linux/device.h> 6 #include <linux/device.h>
7 #include <linux/mod_devicetable.h> 7 #include <linux/mod_devicetable.h>
8 8
9 #define EISA_MAX_SLOTS 8 9 #define EISA_MAX_SLOTS 8
10 10
11 #define EISA_MAX_RESOURCES 4 11 #define EISA_MAX_RESOURCES 4
12 12
13 /* A few EISA constants/offsets... */ 13 /* A few EISA constants/offsets... */
14 14
15 #define EISA_DMA1_STATUS 8 15 #define EISA_DMA1_STATUS 8
16 #define EISA_INT1_CTRL 0x20 16 #define EISA_INT1_CTRL 0x20
17 #define EISA_INT1_MASK 0x21 17 #define EISA_INT1_MASK 0x21
18 #define EISA_INT2_CTRL 0xA0 18 #define EISA_INT2_CTRL 0xA0
19 #define EISA_INT2_MASK 0xA1 19 #define EISA_INT2_MASK 0xA1
20 #define EISA_DMA2_STATUS 0xD0 20 #define EISA_DMA2_STATUS 0xD0
21 #define EISA_DMA2_WRITE_SINGLE 0xD4 21 #define EISA_DMA2_WRITE_SINGLE 0xD4
22 #define EISA_EXT_NMI_RESET_CTRL 0x461 22 #define EISA_EXT_NMI_RESET_CTRL 0x461
23 #define EISA_INT1_EDGE_LEVEL 0x4D0 23 #define EISA_INT1_EDGE_LEVEL 0x4D0
24 #define EISA_INT2_EDGE_LEVEL 0x4D1 24 #define EISA_INT2_EDGE_LEVEL 0x4D1
25 #define EISA_VENDOR_ID_OFFSET 0xC80 25 #define EISA_VENDOR_ID_OFFSET 0xC80
26 #define EISA_CONFIG_OFFSET 0xC84 26 #define EISA_CONFIG_OFFSET 0xC84
27 27
28 #define EISA_CONFIG_ENABLED 1 28 #define EISA_CONFIG_ENABLED 1
29 #define EISA_CONFIG_FORCED 2 29 #define EISA_CONFIG_FORCED 2
30 30
31 /* There is not much we can say about an EISA 31 /* There is not much we can say about an EISA device, apart from
32 * signature, slot number, and base address. d 32 * signature, slot number, and base address. dma_mask is set by
33 * default to parent device mask..*/ 33 * default to parent device mask..*/
34 34
35 struct eisa_device { 35 struct eisa_device {
36 struct eisa_device_id id; 36 struct eisa_device_id id;
37 int slot; 37 int slot;
38 int state; 38 int state;
39 unsigned long base_addr; 39 unsigned long base_addr;
40 struct resource res[EISA_MAX_RES 40 struct resource res[EISA_MAX_RESOURCES];
41 u64 dma_mask; 41 u64 dma_mask;
42 struct device dev; /* generic 42 struct device dev; /* generic device */
43 #ifdef CONFIG_EISA_NAMES 43 #ifdef CONFIG_EISA_NAMES
44 char pretty_name[50]; 44 char pretty_name[50];
45 #endif 45 #endif
46 }; 46 };
47 47
48 #define to_eisa_device(n) container_of(n, stru 48 #define to_eisa_device(n) container_of(n, struct eisa_device, dev)
49 49
50 static inline int eisa_get_region_index (void 50 static inline int eisa_get_region_index (void *addr)
51 { 51 {
52 unsigned long x = (unsigned long) addr 52 unsigned long x = (unsigned long) addr;
53 53
54 x &= 0xc00; 54 x &= 0xc00;
55 return (x >> 12); 55 return (x >> 12);
56 } 56 }
57 57
58 struct eisa_driver { 58 struct eisa_driver {
59 const struct eisa_device_id *id_table; 59 const struct eisa_device_id *id_table;
60 struct device_driver driver; 60 struct device_driver driver;
61 }; 61 };
62 62
63 #define to_eisa_driver(drv) container_of_const !! 63 #define to_eisa_driver(drv) container_of(drv,struct eisa_driver, driver)
64 64
65 /* These external functions are only available 65 /* These external functions are only available when EISA support is enabled. */
66 #ifdef CONFIG_EISA 66 #ifdef CONFIG_EISA
67 67
68 extern struct bus_type eisa_bus_type; 68 extern struct bus_type eisa_bus_type;
69 int eisa_driver_register (struct eisa_driver * 69 int eisa_driver_register (struct eisa_driver *edrv);
70 void eisa_driver_unregister (struct eisa_drive 70 void eisa_driver_unregister (struct eisa_driver *edrv);
71 71
72 #else /* !CONFIG_EISA */ 72 #else /* !CONFIG_EISA */
73 73
74 static inline int eisa_driver_register (struct 74 static inline int eisa_driver_register (struct eisa_driver *edrv) { return 0; }
75 static inline void eisa_driver_unregister (str 75 static inline void eisa_driver_unregister (struct eisa_driver *edrv) { }
76 76
77 #endif /* !CONFIG_EISA */ 77 #endif /* !CONFIG_EISA */
78 78
79 /* Mimics pci.h... */ 79 /* Mimics pci.h... */
80 static inline void *eisa_get_drvdata (struct e 80 static inline void *eisa_get_drvdata (struct eisa_device *edev)
81 { 81 {
82 return dev_get_drvdata(&edev->dev); 82 return dev_get_drvdata(&edev->dev);
83 } 83 }
84 84
85 static inline void eisa_set_drvdata (struct ei 85 static inline void eisa_set_drvdata (struct eisa_device *edev, void *data)
86 { 86 {
87 dev_set_drvdata(&edev->dev, data); 87 dev_set_drvdata(&edev->dev, data);
88 } 88 }
89 89
90 /* The EISA root device. There's rumours about 90 /* The EISA root device. There's rumours about machines with multiple
91 * busses (PA-RISC ?), so we try to handle tha 91 * busses (PA-RISC ?), so we try to handle that. */
92 92
93 struct eisa_root_device { 93 struct eisa_root_device {
94 struct device *dev; /* Pointer to 94 struct device *dev; /* Pointer to bridge device */
95 struct resource *res; 95 struct resource *res;
96 unsigned long bus_base_addr; 96 unsigned long bus_base_addr;
97 int slots; /* Max slot n 97 int slots; /* Max slot number */
98 int force_probe; /* Probe 98 int force_probe; /* Probe even when no slot 0 */
99 u64 dma_mask; /* from bri 99 u64 dma_mask; /* from bridge device */
100 int bus_nr; /* Set by eis 100 int bus_nr; /* Set by eisa_root_register */
101 struct resource eisa_root_res; /* dit 101 struct resource eisa_root_res; /* ditto */
102 }; 102 };
103 103
104 int eisa_root_register (struct eisa_root_devic 104 int eisa_root_register (struct eisa_root_device *root);
105 105
106 #ifdef CONFIG_EISA 106 #ifdef CONFIG_EISA
107 extern int EISA_bus; 107 extern int EISA_bus;
108 #else 108 #else
109 # define EISA_bus 0 109 # define EISA_bus 0
110 #endif 110 #endif
111 111
112 #endif 112 #endif
113 113
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