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