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linux/drivers/net/arcnet/com20020-pci.c
Michael Grzeschik 5b85bad2a4 ARCNET: enable eae arcnet card support 
This patch adds support for the EAE arcnet cards
which has two Interfaces.

Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-29 14:36:26 -04:00

400 lines
7.6 KiB
C
Raw Blame History

/*
* Linux ARCnet driver - COM20020 PCI support
* Contemporary Controls PCI20 and SOHARD SH-ARC PCI
*
* Written 1994-1999 by Avery Pennarun,
* based on an ISA version by David Woodhouse.
* Written 1999-2000 by Martin Mares <mj@ucw.cz>.
* Derived from skeleton.c by Donald Becker.
*
* Special thanks to Contemporary Controls, Inc. (www.ccontrols.com)
* for sponsoring the further development of this driver.
*
* **********************
*
* The original copyright of skeleton.c was as follows:
*
* skeleton.c Written 1993 by Donald Becker.
* Copyright 1993 United States Government as represented by the
* Director, National Security Agency. This software may only be used
* and distributed according to the terms of the GNU General Public License as
* modified by SRC, incorporated herein by reference.
*
* **********************
*
* For more details, see drivers/net/arcnet.c
*
* **********************
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/ioport.h>
#include <linux/errno.h>
#include <linux/netdevice.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/pci.h>
#include <linux/arcdevice.h>
#include <linux/com20020.h>
#include <linux/list.h>
#include <asm/io.h>
#define VERSION "arcnet: COM20020 PCI support\n"
/* Module parameters */
static int node;
static char device[9]; /* use eg. device="arc1" to change name */
static int timeout = 3;
static int backplane;
static int clockp;
static int clockm;
module_param(node, int, 0);
module_param_string(device, device, sizeof(device), 0);
module_param(timeout, int, 0);
module_param(backplane, int, 0);
module_param(clockp, int, 0);
module_param(clockm, int, 0);
MODULE_LICENSE("GPL");
static void com20020pci_remove(struct pci_dev *pdev);
static int com20020pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
struct com20020_pci_card_info *ci;
struct net_device *dev;
struct arcnet_local *lp;
struct com20020_priv *priv;
int i, ioaddr, ret;
struct resource *r;
if (pci_enable_device(pdev))
return -EIO;
priv = devm_kzalloc(&pdev->dev, sizeof(struct com20020_priv),
GFP_KERNEL);
ci = (struct com20020_pci_card_info *)id->driver_data;
priv->ci = ci;
INIT_LIST_HEAD(&priv->list_dev);
for (i = 0; i < ci->devcount; i++) {
struct com20020_pci_channel_map *cm = &ci->chan_map_tbl[i];
struct com20020_dev *card;
dev = alloc_arcdev(device);
if (!dev) {
ret = -ENOMEM;
goto out_port;
}
dev->netdev_ops = &com20020_netdev_ops;
lp = netdev_priv(dev);
BUGMSG(D_NORMAL, "%s Controls\n", ci->name);
ioaddr = pci_resource_start(pdev, cm->bar) + cm->offset;
r = devm_request_region(&pdev->dev, ioaddr, cm->size,
"com20020-pci");
if (!r) {
pr_err("IO region %xh-%xh already allocated.\n",
ioaddr, ioaddr + cm->size - 1);
ret = -EBUSY;
goto out_port;
}
/* Dummy access after Reset
* ARCNET controller needs
* this access to detect bustype
*/
outb(0x00, ioaddr + 1);
inb(ioaddr + 1);
dev->base_addr = ioaddr;
dev->dev_addr[0] = node;
dev->irq = pdev->irq;
lp->card_name = "PCI COM20020";
lp->card_flags = ci->flags;
lp->backplane = backplane;
lp->clockp = clockp & 7;
lp->clockm = clockm & 3;
lp->timeout = timeout;
lp->hw.owner = THIS_MODULE;
if (ASTATUS() == 0xFF) {
pr_err("IO address %Xh is empty!\n", ioaddr);
ret = -EIO;
goto out_port;
}
if (com20020_check(dev)) {
ret = -EIO;
goto out_port;
}
card = devm_kzalloc(&pdev->dev, sizeof(struct com20020_dev),
GFP_KERNEL);
if (!card) {
pr_err("%s out of memory!\n", __func__);
return -ENOMEM;
}
card->index = i;
card->pci_priv = priv;
card->dev = dev;
dev_set_drvdata(&dev->dev, card);
ret = com20020_found(dev, IRQF_SHARED);
if (ret)
goto out_port;
list_add(&card->list, &priv->list_dev);
}
pci_set_drvdata(pdev, priv);
return 0;
out_port:
com20020pci_remove(pdev);
return ret;
}
static void com20020pci_remove(struct pci_dev *pdev)
{
struct com20020_dev *card, *tmpcard;
struct com20020_priv *priv;
priv = pci_get_drvdata(pdev);
list_for_each_entry_safe(card, tmpcard, &priv->list_dev, list) {
struct net_device *dev = card->dev;
unregister_netdev(dev);
free_irq(dev->irq, dev);
free_netdev(dev);
}
}
static struct com20020_pci_card_info card_info_10mbit = {
.name = "ARC-PCI",
.devcount = 1,
.chan_map_tbl = {
{ 2, 0x00, 0x08 },
},
.flags = ARC_CAN_10MBIT,
};
static struct com20020_pci_card_info card_info_5mbit = {
.name = "ARC-PCI",
.devcount = 1,
.chan_map_tbl = {
{ 2, 0x00, 0x08 },
},
.flags = ARC_IS_5MBIT,
};
static struct com20020_pci_card_info card_info_sohard = {
.name = "PLX-PCI",
.devcount = 1,
/* SOHARD needs PCI base addr 4 */
.chan_map_tbl = {
{4, 0x00, 0x08},
},
.flags = ARC_CAN_10MBIT,
};
static struct com20020_pci_card_info card_info_eae = {
.name = "EAE PLX-PCI",
.devcount = 2,
.chan_map_tbl = {
{ 2, 0x00, 0x08 },
{ 2, 0x08, 0x08 }
},
.flags = ARC_CAN_10MBIT,
};
static const struct pci_device_id com20020pci_id_table[] = {
{
0x1571, 0xa001,
PCI_ANY_ID, PCI_ANY_ID,
0, 0,
0,
},
{
0x1571, 0xa002,
PCI_ANY_ID, PCI_ANY_ID,
0, 0,
0,
},
{
0x1571, 0xa003,
PCI_ANY_ID, PCI_ANY_ID,
0, 0,
0
},
{
0x1571, 0xa004,
PCI_ANY_ID, PCI_ANY_ID,
0, 0,
0,
},
{
0x1571, 0xa005,
PCI_ANY_ID, PCI_ANY_ID,
0, 0,
0
},
{
0x1571, 0xa006,
PCI_ANY_ID, PCI_ANY_ID,
0, 0,
0
},
{
0x1571, 0xa007,
PCI_ANY_ID, PCI_ANY_ID,
0, 0,
0
},
{
0x1571, 0xa008,
PCI_ANY_ID, PCI_ANY_ID,
0, 0,
0
},
{
0x1571, 0xa009,
PCI_ANY_ID, PCI_ANY_ID,
0, 0,
(kernel_ulong_t)&card_info_5mbit
},
{
0x1571, 0xa00a,
PCI_ANY_ID, PCI_ANY_ID,
0, 0,
(kernel_ulong_t)&card_info_5mbit
},
{
0x1571, 0xa00b,
PCI_ANY_ID, PCI_ANY_ID,
0, 0,
(kernel_ulong_t)&card_info_5mbit
},
{
0x1571, 0xa00c,
PCI_ANY_ID, PCI_ANY_ID,
0, 0,
(kernel_ulong_t)&card_info_5mbit
},
{
0x1571, 0xa00d,
PCI_ANY_ID, PCI_ANY_ID,
0, 0,
(kernel_ulong_t)&card_info_5mbit
},
{
0x1571, 0xa00e,
PCI_ANY_ID, PCI_ANY_ID,
0, 0,
(kernel_ulong_t)&card_info_5mbit
},
{
0x1571, 0xa201,
PCI_ANY_ID, PCI_ANY_ID,
0, 0,
(kernel_ulong_t)&card_info_10mbit
},
{
0x1571, 0xa202,
PCI_ANY_ID, PCI_ANY_ID,
0, 0,
(kernel_ulong_t)&card_info_10mbit
},
{
0x1571, 0xa203,
PCI_ANY_ID, PCI_ANY_ID,
0, 0,
(kernel_ulong_t)&card_info_10mbit
},
{
0x1571, 0xa204,
PCI_ANY_ID, PCI_ANY_ID,
0, 0,
(kernel_ulong_t)&card_info_10mbit
},
{
0x1571, 0xa205,
PCI_ANY_ID, PCI_ANY_ID,
0, 0,
(kernel_ulong_t)&card_info_10mbit
},
{
0x1571, 0xa206,
PCI_ANY_ID, PCI_ANY_ID,
0, 0,
(kernel_ulong_t)&card_info_10mbit
},
{
0x10B5, 0x9030,
0x10B5, 0x2978,
0, 0,
(kernel_ulong_t)&card_info_sohard
},
{
0x10B5, 0x9050,
0x10B5, 0x2273,
0, 0,
(kernel_ulong_t)&card_info_sohard
},
{
0x10B5, 0x9050,
0x10B5, 0x3292,
0, 0,
(kernel_ulong_t)&card_info_eae
},
{
0x14BA, 0x6000,
PCI_ANY_ID, PCI_ANY_ID,
0, 0,
(kernel_ulong_t)&card_info_10mbit
},
{
0x10B5, 0x2200,
PCI_ANY_ID, PCI_ANY_ID,
0, 0,
(kernel_ulong_t)&card_info_10mbit
},
{ 0, }
};
MODULE_DEVICE_TABLE(pci, com20020pci_id_table);
static struct pci_driver com20020pci_driver = {
.name = "com20020",
.id_table = com20020pci_id_table,
.probe = com20020pci_probe,
.remove = com20020pci_remove,
};
static int __init com20020pci_init(void)
{
BUGLVL(D_NORMAL) printk(VERSION);
return pci_register_driver(&com20020pci_driver);
}
static void __exit com20020pci_cleanup(void)
{
pci_unregister_driver(&com20020pci_driver);
}
module_init(com20020pci_init)
module_exit(com20020pci_cleanup)
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