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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 | /* * $Id: proc.c,v 1.1.2.1 1998/06/07 23:21:01 geert Exp $ * * Procfs interface for the Zorro bus. * * Copyright (C) 1998 Geert Uytterhoeven * * Heavily based on the procfs interface for the PCI bus, which is * * Copyright (C) 1997, 1998 Martin Mares <mj@atrey.karlin.mff.cuni.cz> */ #include <linux/types.h> #include <linux/zorro.h> #include <linux/proc_fs.h> #include <linux/init.h> #include <asm/uaccess.h> #include <asm/amigahw.h> #include <asm/setup.h> static loff_t proc_bus_zorro_lseek(struct file *file, loff_t off, int whence) { loff_t new; switch (whence) { case 0: new = off; break; case 1: new = file->f_pos + off; break; case 2: new = sizeof(struct ConfigDev) + off; break; default: return -EINVAL; } if (new < 0 || new > sizeof(struct ConfigDev)) return -EINVAL; return (file->f_pos = new); } static ssize_t proc_bus_zorro_read(struct file *file, char *buf, size_t nbytes, loff_t *ppos) { struct inode *ino = file->f_dentry->d_inode; struct proc_dir_entry *dp = ino->u.generic_ip; struct ConfigDev *cd = dp->data; int pos = *ppos; if (pos >= sizeof(struct ConfigDev)) return 0; if (nbytes >= sizeof(struct ConfigDev)) nbytes = sizeof(struct ConfigDev); if (pos + nbytes > sizeof(struct ConfigDev)) nbytes = sizeof(struct ConfigDev) - pos; if (copy_to_user(buf, cd, nbytes)) return -EFAULT; *ppos += nbytes; return nbytes; } static struct file_operations proc_bus_zorro_operations = { proc_bus_zorro_lseek, proc_bus_zorro_read, NULL, /* write */ NULL, /* readdir */ NULL, /* poll */ NULL, /* ioctl */ NULL, /* mmap */ NULL, /* no special open code */ NULL, /* flush */ NULL, /* no special release code */ NULL /* can't fsync */ }; static struct inode_operations proc_bus_zorro_inode_operations = { &proc_bus_zorro_operations, /* default base directory file-ops */ NULL, /* create */ NULL, /* lookup */ NULL, /* link */ NULL, /* unlink */ NULL, /* symlink */ NULL, /* mkdir */ NULL, /* rmdir */ NULL, /* mknod */ NULL, /* rename */ NULL, /* readlink */ NULL, /* follow_link */ NULL, /* readpage */ NULL, /* writepage */ NULL, /* bmap */ NULL, /* truncate */ NULL /* permission */ }; int get_zorro_dev_info(char *buf, char **start, off_t pos, int count, int wr) { u_int slot; off_t at = 0; int len, cnt; for (slot = cnt = 0; slot < zorro_num_autocon && count > cnt; slot++) { struct ConfigDev *cd = &zorro_autocon[slot]; u16 manuf = cd->cd_Rom.er_Manufacturer; u8 prod = cd->cd_Rom.er_Product; u8 epc; if (manuf == ZORRO_MANUF(ZORRO_PROD_GVP_EPC_BASE) && prod == ZORRO_PROD(ZORRO_PROD_GVP_EPC_BASE)) { /* GVP quirk */ u32 addr = (u32)cd->cd_BoardAddr; epc = (*(u16 *)ZTWO_VADDR(addr+0x8000)) & GVP_PRODMASK; } else epc = 0; len = sprintf(buf, "%02x\t%04x%02x%02x\t%08x\t%08x\t%02x\n", slot, manuf, prod, epc, (u32)cd->cd_BoardAddr, cd->cd_BoardSize, cd->cd_Rom.er_Type); at += len; if (at >= pos) { if (!*start) { *start = buf + (pos - (at - len)); cnt = at - pos; } else cnt += len; buf += len; } } return (count > cnt) ? cnt : count; } static struct proc_dir_entry proc_zorro_devices = { PROC_BUS_ZORRO_DEVICES, 7, "devices", S_IFREG | S_IRUGO, 1, 0, 0, 0, &proc_array_inode_operations, get_zorro_dev_info }; static struct proc_dir_entry *proc_bus_zorro_dir; __initfunc(static int zorro_proc_attach_device(u_int slot)) { struct proc_dir_entry *entry; char name[4]; sprintf(name, "%02x", slot); entry = create_proc_entry(name, S_IFREG | S_IRUGO, proc_bus_zorro_dir); if (!entry) return -ENOMEM; entry->ops = &proc_bus_zorro_inode_operations; entry->data = &zorro_autocon[slot]; entry->size = sizeof(struct ConfigDev); return 0; } __initfunc(void zorro_proc_init(void)) { u_int slot; if (!MACH_IS_AMIGA || !AMIGAHW_PRESENT(ZORRO)) return; proc_bus_zorro_dir = create_proc_entry("zorro", S_IFDIR, proc_bus); proc_register(proc_bus_zorro_dir, &proc_zorro_devices); for (slot = 0; slot < zorro_num_autocon; slot++) zorro_proc_attach_device(slot); } |