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