Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
1da177e4 LT |
2 | * Procfs interface for the Zorro bus. |
3 | * | |
4 | * Copyright (C) 1998-2003 Geert Uytterhoeven | |
5 | * | |
6 | * Heavily based on the procfs interface for the PCI bus, which is | |
7 | * | |
8 | * Copyright (C) 1997, 1998 Martin Mares <mj@atrey.karlin.mff.cuni.cz> | |
9 | */ | |
10 | ||
11 | #include <linux/types.h> | |
12 | #include <linux/zorro.h> | |
13 | #include <linux/proc_fs.h> | |
8331438b | 14 | #include <linux/seq_file.h> |
1da177e4 | 15 | #include <linux/init.h> |
8aaf7a0e | 16 | #include <linux/export.h> |
bd9ba8f4 GU |
17 | |
18 | #include <asm/byteorder.h> | |
1da177e4 LT |
19 | #include <asm/uaccess.h> |
20 | #include <asm/amigahw.h> | |
21 | #include <asm/setup.h> | |
22 | ||
23 | static loff_t | |
24 | proc_bus_zorro_lseek(struct file *file, loff_t off, int whence) | |
25 | { | |
3be1f2b8 | 26 | return fixed_size_llseek(file, off, whence, sizeof(struct ConfigDev)); |
1da177e4 LT |
27 | } |
28 | ||
29 | static ssize_t | |
d998265f | 30 | proc_bus_zorro_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos) |
1da177e4 | 31 | { |
d9dda78b | 32 | struct zorro_dev *z = PDE_DATA(file_inode(file)); |
1da177e4 LT |
33 | struct ConfigDev cd; |
34 | loff_t pos = *ppos; | |
35 | ||
36 | if (pos >= sizeof(struct ConfigDev)) | |
37 | return 0; | |
38 | if (nbytes >= sizeof(struct ConfigDev)) | |
39 | nbytes = sizeof(struct ConfigDev); | |
40 | if (pos + nbytes > sizeof(struct ConfigDev)) | |
41 | nbytes = sizeof(struct ConfigDev) - pos; | |
42 | ||
43 | /* Construct a ConfigDev */ | |
44 | memset(&cd, 0, sizeof(cd)); | |
45 | cd.cd_Rom = z->rom; | |
bd9ba8f4 GU |
46 | cd.cd_SlotAddr = cpu_to_be16(z->slotaddr); |
47 | cd.cd_SlotSize = cpu_to_be16(z->slotsize); | |
48 | cd.cd_BoardAddr = cpu_to_be32(zorro_resource_start(z)); | |
49 | cd.cd_BoardSize = cpu_to_be32(zorro_resource_len(z)); | |
1da177e4 | 50 | |
2190a1e7 | 51 | if (copy_to_user(buf, (void *)&cd + pos, nbytes)) |
1da177e4 LT |
52 | return -EFAULT; |
53 | *ppos += nbytes; | |
54 | ||
55 | return nbytes; | |
56 | } | |
57 | ||
00977a59 | 58 | static const struct file_operations proc_bus_zorro_operations = { |
659f865e | 59 | .owner = THIS_MODULE, |
1da177e4 LT |
60 | .llseek = proc_bus_zorro_lseek, |
61 | .read = proc_bus_zorro_read, | |
62 | }; | |
63 | ||
8331438b | 64 | static void * zorro_seq_start(struct seq_file *m, loff_t *pos) |
1da177e4 | 65 | { |
8331438b AD |
66 | return (*pos < zorro_num_autocon) ? pos : NULL; |
67 | } | |
68 | ||
69 | static void * zorro_seq_next(struct seq_file *m, void *v, loff_t *pos) | |
70 | { | |
71 | (*pos)++; | |
72 | return (*pos < zorro_num_autocon) ? pos : NULL; | |
73 | } | |
74 | ||
75 | static void zorro_seq_stop(struct seq_file *m, void *v) | |
76 | { | |
77 | } | |
78 | ||
79 | static int zorro_seq_show(struct seq_file *m, void *v) | |
80 | { | |
0d305464 | 81 | unsigned int slot = *(loff_t *)v; |
8331438b AD |
82 | struct zorro_dev *z = &zorro_autocon[slot]; |
83 | ||
84 | seq_printf(m, "%02x\t%08x\t%08lx\t%08lx\t%02x\n", slot, z->id, | |
85 | (unsigned long)zorro_resource_start(z), | |
86 | (unsigned long)zorro_resource_len(z), | |
87 | z->rom.er_Type); | |
88 | return 0; | |
89 | } | |
90 | ||
91 | static const struct seq_operations zorro_devices_seq_ops = { | |
92 | .start = zorro_seq_start, | |
93 | .next = zorro_seq_next, | |
94 | .stop = zorro_seq_stop, | |
95 | .show = zorro_seq_show, | |
96 | }; | |
97 | ||
98 | static int zorro_devices_proc_open(struct inode *inode, struct file *file) | |
99 | { | |
100 | return seq_open(file, &zorro_devices_seq_ops); | |
1da177e4 LT |
101 | } |
102 | ||
8331438b AD |
103 | static const struct file_operations zorro_devices_proc_fops = { |
104 | .owner = THIS_MODULE, | |
105 | .open = zorro_devices_proc_open, | |
106 | .read = seq_read, | |
107 | .llseek = seq_lseek, | |
108 | .release = seq_release, | |
109 | }; | |
110 | ||
1da177e4 LT |
111 | static struct proc_dir_entry *proc_bus_zorro_dir; |
112 | ||
0d305464 | 113 | static int __init zorro_proc_attach_device(unsigned int slot) |
1da177e4 LT |
114 | { |
115 | struct proc_dir_entry *entry; | |
116 | char name[4]; | |
117 | ||
118 | sprintf(name, "%02x", slot); | |
659f865e DL |
119 | entry = proc_create_data(name, 0, proc_bus_zorro_dir, |
120 | &proc_bus_zorro_operations, | |
121 | &zorro_autocon[slot]); | |
1da177e4 LT |
122 | if (!entry) |
123 | return -ENOMEM; | |
271a15ea | 124 | proc_set_size(entry, sizeof(struct zorro_dev)); |
1da177e4 LT |
125 | return 0; |
126 | } | |
127 | ||
128 | static int __init zorro_proc_init(void) | |
129 | { | |
0d305464 | 130 | unsigned int slot; |
1da177e4 LT |
131 | |
132 | if (MACH_IS_AMIGA && AMIGAHW_PRESENT(ZORRO)) { | |
9c37066d | 133 | proc_bus_zorro_dir = proc_mkdir("bus/zorro", NULL); |
8331438b AD |
134 | proc_create("devices", 0, proc_bus_zorro_dir, |
135 | &zorro_devices_proc_fops); | |
1da177e4 LT |
136 | for (slot = 0; slot < zorro_num_autocon; slot++) |
137 | zorro_proc_attach_device(slot); | |
138 | } | |
139 | return 0; | |
140 | } | |
141 | ||
a6a26a3e | 142 | device_initcall(zorro_proc_init); |