^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Procfs interface for the Zorro bus.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 1998-2003 Geert Uytterhoeven
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Heavily based on the procfs interface for the PCI bus, which is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * Copyright (C) 1997, 1998 Martin Mares <mj@atrey.karlin.mff.cuni.cz>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/zorro.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/proc_fs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/seq_file.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/export.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <asm/byteorder.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/uaccess.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <asm/amigahw.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <asm/setup.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) static loff_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) proc_bus_zorro_lseek(struct file *file, loff_t off, int whence)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) return fixed_size_llseek(file, off, whence, sizeof(struct ConfigDev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) static ssize_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) proc_bus_zorro_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) struct zorro_dev *z = PDE_DATA(file_inode(file));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) struct ConfigDev cd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) loff_t pos = *ppos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) if (pos >= sizeof(struct ConfigDev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) if (nbytes >= sizeof(struct ConfigDev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) nbytes = sizeof(struct ConfigDev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) if (pos + nbytes > sizeof(struct ConfigDev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) nbytes = sizeof(struct ConfigDev) - pos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) /* Construct a ConfigDev */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) memset(&cd, 0, sizeof(cd));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) cd.cd_Rom = z->rom;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) cd.cd_SlotAddr = cpu_to_be16(z->slotaddr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) cd.cd_SlotSize = cpu_to_be16(z->slotsize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) cd.cd_BoardAddr = cpu_to_be32(zorro_resource_start(z));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) cd.cd_BoardSize = cpu_to_be32(zorro_resource_len(z));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) if (copy_to_user(buf, (void *)&cd + pos, nbytes))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) *ppos += nbytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) return nbytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) static const struct proc_ops bus_zorro_proc_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) .proc_lseek = proc_bus_zorro_lseek,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) .proc_read = proc_bus_zorro_read,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) static void * zorro_seq_start(struct seq_file *m, loff_t *pos)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) return (*pos < zorro_num_autocon) ? pos : NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) static void * zorro_seq_next(struct seq_file *m, void *v, loff_t *pos)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) (*pos)++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) return (*pos < zorro_num_autocon) ? pos : NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) static void zorro_seq_stop(struct seq_file *m, void *v)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) static int zorro_seq_show(struct seq_file *m, void *v)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) unsigned int slot = *(loff_t *)v;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) struct zorro_dev *z = &zorro_autocon[slot];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) seq_printf(m, "%02x\t%08x\t%08lx\t%08lx\t%02x\n", slot, z->id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) (unsigned long)zorro_resource_start(z),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) (unsigned long)zorro_resource_len(z),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) z->rom.er_Type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) static const struct seq_operations zorro_devices_seq_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) .start = zorro_seq_start,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) .next = zorro_seq_next,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) .stop = zorro_seq_stop,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) .show = zorro_seq_show,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) static struct proc_dir_entry *proc_bus_zorro_dir;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) static int __init zorro_proc_attach_device(unsigned int slot)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) struct proc_dir_entry *entry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) char name[4];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) sprintf(name, "%02x", slot);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) entry = proc_create_data(name, 0, proc_bus_zorro_dir,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) &bus_zorro_proc_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) &zorro_autocon[slot]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) if (!entry)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) proc_set_size(entry, sizeof(struct zorro_dev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) static int __init zorro_proc_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) unsigned int slot;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) if (MACH_IS_AMIGA && AMIGAHW_PRESENT(ZORRO)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) proc_bus_zorro_dir = proc_mkdir("bus/zorro", NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) proc_create_seq("devices", 0, proc_bus_zorro_dir,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) &zorro_devices_seq_ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) for (slot = 0; slot < zorro_num_autocon; slot++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) zorro_proc_attach_device(slot);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) device_initcall(zorro_proc_init);
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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