Release 4.14 drivers/zorro/zorro.c
/*
* Zorro Bus Services
*
* Copyright (C) 1995-2003 Geert Uytterhoeven
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file COPYING in the main directory of this archive
* for more details.
*/
#include <linux/module.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/zorro.h>
#include <linux/bitops.h>
#include <linux/string.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <asm/byteorder.h>
#include <asm/setup.h>
#include <asm/amigahw.h>
#include "zorro.h"
/*
* Zorro Expansion Devices
*/
unsigned int zorro_num_autocon;
struct zorro_dev_init zorro_autocon_init[ZORRO_NUM_AUTO] __initdata;
struct zorro_dev *zorro_autocon;
/*
* Zorro bus
*/
struct zorro_bus {
struct device dev;
struct zorro_dev devices[0];
};
/*
* Find Zorro Devices
*/
struct zorro_dev *zorro_find_device(zorro_id id, struct zorro_dev *from)
{
struct zorro_dev *z;
if (!zorro_num_autocon)
return NULL;
for (z = from ? from+1 : &zorro_autocon[0];
z < zorro_autocon+zorro_num_autocon;
z++)
if (id == ZORRO_WILDCARD || id == z->id)
return z;
return NULL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 64 | 90.14% | 4 | 66.67% |
| Andrew Morton | 6 | 8.45% | 1 | 16.67% |
| Geert Uytterhoeven | 1 | 1.41% | 1 | 16.67% |
| Total | 71 | 100.00% | 6 | 100.00% |
EXPORT_SYMBOL(zorro_find_device);
/*
* Bitmask indicating portions of available Zorro II RAM that are unused
* by the system. Every bit represents a 64K chunk, for a maximum of 8MB
* (128 chunks, physical 0x00200000-0x009fffff).
*
* If you want to use (= allocate) portions of this RAM, you should clear
* the corresponding bits.
*
* Possible uses:
* - z2ram device
* - SCSI DMA bounce buffers
*
* FIXME: use the normal resource management
*/
DECLARE_BITMAP(zorro_unused_z2ram, 128);
EXPORT_SYMBOL(zorro_unused_z2ram);
static void __init mark_region(unsigned long start, unsigned long end,
int flag)
{
if (flag)
start += Z2RAM_CHUNKMASK;
else
end += Z2RAM_CHUNKMASK;
start &= ~Z2RAM_CHUNKMASK;
end &= ~Z2RAM_CHUNKMASK;
if (end <= Z2RAM_START || start >= Z2RAM_END)
return;
start = start < Z2RAM_START ? 0x00000000 : start-Z2RAM_START;
end = end > Z2RAM_END ? Z2RAM_SIZE : end-Z2RAM_START;
while (start < end) {
u32 chunk = start>>Z2RAM_CHUNKSHIFT;
if (flag)
set_bit(chunk, zorro_unused_z2ram);
else
clear_bit(chunk, zorro_unused_z2ram);
start += Z2RAM_CHUNKSIZE;
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 114 | 100.00% | 4 | 100.00% |
| Total | 114 | 100.00% | 4 | 100.00% |
static struct resource __init *zorro_find_parent_resource(
struct platform_device *bridge, struct zorro_dev *z)
{
int i;
for (i = 0; i < bridge->num_resources; i++) {
struct resource *r = &bridge->resource[i];
if (zorro_resource_start(z) >= r->start &&
zorro_resource_end(z) <= r->end)
return r;
}
return &iomem_resource;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 45 | 56.96% | 1 | 33.33% |
| Geert Uytterhoeven | 27 | 34.18% | 1 | 33.33% |
| Andrew Morton | 7 | 8.86% | 1 | 33.33% |
| Total | 79 | 100.00% | 3 | 100.00% |
static int __init amiga_zorro_probe(struct platform_device *pdev)
{
struct zorro_bus *bus;
struct zorro_dev_init *zi;
struct zorro_dev *z;
struct resource *r;
unsigned int i;
int error;
/* Initialize the Zorro bus */
bus = kzalloc(sizeof(*bus) +
zorro_num_autocon * sizeof(bus->devices[0]),
GFP_KERNEL);
if (!bus)
return -ENOMEM;
zorro_autocon = bus->devices;
bus->dev.parent = &pdev->dev;
dev_set_name(&bus->dev, zorro_bus_type.name);
error = device_register(&bus->dev);
if (error) {
pr_err("Zorro: Error registering zorro_bus\n");
put_device(&bus->dev);
kfree(bus);
return error;
}
platform_set_drvdata(pdev, bus);
pr_info("Zorro: Probing AutoConfig expansion devices: %u device%s\n",
zorro_num_autocon, zorro_num_autocon == 1 ? "" : "s");
/* First identify all devices ... */
for (i = 0; i < zorro_num_autocon; i++) {
zi = &zorro_autocon_init[i];
z = &zorro_autocon[i];
z->rom = zi->rom;
z->id = (be16_to_cpu(z->rom.er_Manufacturer) << 16) |
(z->rom.er_Product << 8);
if (z->id == ZORRO_PROD_GVP_EPC_BASE) {
/* GVP quirk */
unsigned long magic = zi->boardaddr + 0x8000;
z->id |= *(u16 *)ZTWO_VADDR(magic) & GVP_PRODMASK;
}
z->slotaddr = zi->slotaddr;
z->slotsize = zi->slotsize;
sprintf(z->name, "Zorro device %08x", z->id);
zorro_name_device(z);
z->resource.start = zi->boardaddr;
z->resource.end = zi->boardaddr + zi->boardsize - 1;
z->resource.name = z->name;
r = zorro_find_parent_resource(pdev, z);
error = request_resource(r, &z->resource);
if (error)
dev_err(&bus->dev,
"Address space collision on device %s %pR\n",
z->name, &z->resource);
z->dev.parent = &bus->dev;
z->dev.bus = &zorro_bus_type;
z->dev.id = i;
}
/* ... then register them */
for (i = 0; i < zorro_num_autocon; i++) {
z = &zorro_autocon[i];
error = device_register(&z->dev);
if (error) {
dev_err(&bus->dev, "Error registering device %s\n",
z->name);
put_device(&z->dev);
continue;
}
}
/* Mark all available Zorro II memory */
zorro_for_each_dev(z) {
if (z->rom.er_Type & ERTF_MEMLIST)
mark_region(zorro_resource_start(z),
zorro_resource_end(z)+1, 1);
}
/* Unmark all used Zorro II memory */
for (i = 0; i < m68k_num_memory; i++)
if (m68k_memory[i].addr < 16*1024*1024)
mark_region(m68k_memory[i].addr,
m68k_memory[i].addr+m68k_memory[i].size,
0);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Geert Uytterhoeven | 258 | 45.83% | 7 | 38.89% |
| Linus Torvalds (pre-git) | 213 | 37.83% | 7 | 38.89% |
| Andrew Morton | 67 | 11.90% | 1 | 5.56% |
| Vasiliy Kulikov | 16 | 2.84% | 1 | 5.56% |
| Roman Zippel | 7 | 1.24% | 1 | 5.56% |
| Kay Sievers | 2 | 0.36% | 1 | 5.56% |
| Total | 563 | 100.00% | 18 | 100.00% |
static struct platform_driver amiga_zorro_driver = {
.driver = {
.name = "amiga-zorro",
},
};
static int __init amiga_zorro_init(void)
{
return platform_driver_probe(&amiga_zorro_driver, amiga_zorro_probe);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Geert Uytterhoeven | 16 | 88.89% | 1 | 50.00% |
| Linus Torvalds (pre-git) | 2 | 11.11% | 1 | 50.00% |
| Total | 18 | 100.00% | 2 | 100.00% |
module_init(amiga_zorro_init);
MODULE_LICENSE("GPL");
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 475 | 49.17% | 10 | 37.04% |
| Geert Uytterhoeven | 370 | 38.30% | 8 | 29.63% |
| Andrew Morton | 84 | 8.70% | 1 | 3.70% |
| Vasiliy Kulikov | 16 | 1.66% | 1 | 3.70% |
| Roman Zippel | 7 | 0.72% | 1 | 3.70% |
| Linus Torvalds | 6 | 0.62% | 2 | 7.41% |
| Tim Schmielau | 3 | 0.31% | 1 | 3.70% |
| Adrian Bunk | 3 | 0.31% | 2 | 7.41% |
| Kay Sievers | 2 | 0.21% | 1 | 3.70% |
| Total | 966 | 100.00% | 27 | 100.00% |
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