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[PARPORT] sunbpp: Convert to new SBUS device framework. 

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2006-06-23 22:22:13 -07:00
parent 9eccf1b312
commit 4f62d158a3
1 changed files with 70 additions and 64 deletions
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134
drivers/parport/parport_sunbpp.c
View File

@ -1,5 +1,4 @@
/* $Id: parport_sunbpp.c,v 1.12 2001/05/26 03:01:42 davem Exp $
* Parallel-port routines for Sun architecture
/* parport_sunbpp.c: Parallel-port routines for SBUS
*
* Author: Derrick J. Brashear <shadow@dementia.org>
*
@ -14,6 +13,9 @@
* Gus Baldauf (gbaldauf@ix.netcom.com)
* Peter Zaitcev
* Tom Dyas
*
* Updated to new SBUS device framework: David S. Miller <davem@davemloft.net>
*
*/
#include <linux/string.h>
@ -287,14 +289,7 @@ static struct parport_operations parport_sunbpp_ops =
.owner = THIS_MODULE,
};
typedef struct {
struct list_head list;
struct parport *port;
} Node;
/* no locks, everything's serialized */
static LIST_HEAD(port_list);
static int __init init_one_port(struct sbus_dev *sdev)
static int __devinit init_one_port(struct sbus_dev *sdev)
{
struct parport *p;
/* at least in theory there may be a "we don't dma" case */
@ -303,109 +298,120 @@ static int __init init_one_port(struct sbus_dev *sdev)
int irq, dma, err = 0, size;
struct bpp_regs __iomem *regs;
unsigned char value_tcr;
Node *node;
dprintk((KERN_DEBUG "init_one_port(%p): ranges, alloc_io, ", sdev));
node = kmalloc(sizeof(Node), GFP_KERNEL);
if (!node)
goto out0;
irq = sdev->irqs[0];
base = sbus_ioremap(&sdev->resource[0], 0,
sdev->reg_addrs[0].reg_size,
"sunbpp");
if (!base)
goto out1;
return -ENODEV;
size = sdev->reg_addrs[0].reg_size;
dma = PARPORT_DMA_NONE;
dprintk(("alloc(ppops), "));
ops = kmalloc (sizeof (struct parport_operations), GFP_KERNEL);
ops = kmalloc(sizeof(struct parport_operations), GFP_KERNEL);
if (!ops)
goto out2;
goto out_unmap;
memcpy (ops, &parport_sunbpp_ops, sizeof (struct parport_operations));
dprintk(("register_port\n"));
if (!(p = parport_register_port((unsigned long)base, irq, dma, ops)))
goto out3;
goto out_free_ops;
p->size = size;
dprintk((KERN_DEBUG "init_one_port: request_irq(%08x:%p:%x:%s:%p) ",
p->irq, parport_sunbpp_interrupt, SA_SHIRQ, p->name, p));
if ((err = request_irq(p->irq, parport_sunbpp_interrupt,
SA_SHIRQ, p->name, p)) != 0) {
dprintk(("ERROR %d\n", err));
goto out4;
goto out_put_port;
}
dprintk(("OK\n"));
parport_sunbpp_enable_irq(p);
regs = (struct bpp_regs __iomem *)p->base;
dprintk((KERN_DEBUG "forward\n"));
value_tcr = sbus_readb(&regs->p_tcr);
value_tcr &= ~P_TCR_DIR;
sbus_writeb(value_tcr, &regs->p_tcr);
printk(KERN_INFO "%s: sunbpp at 0x%lx\n", p->name, p->base);
node->port = p;
list_add(&node->list, &port_list);
parport_announce_port (p);
return 1;
dev_set_drvdata(&sdev->ofdev.dev, p);
out4:
parport_announce_port(p);
return 0;
out_put_port:
parport_put_port(p);
out3:
out_free_ops:
kfree(ops);
out2:
out_unmap:
sbus_iounmap(base, size);
out1:
kfree(node);
out0:
return err;
}
static int __devinit bpp_probe(struct of_device *dev, const struct of_device_id *match)
{
struct sbus_dev *sdev = to_sbus_device(&dev->dev);
return init_one_port(sdev);
}
static int __devexit bpp_remove(struct of_device *dev)
{
struct parport *p = dev_get_drvdata(&dev->dev);
struct parport_operations *ops = p->ops;
parport_remove_port(p);
if (p->irq != PARPORT_IRQ_NONE) {
parport_sunbpp_disable_irq(p);
free_irq(p->irq, p);
}
sbus_iounmap((void __iomem *) p->base, p->size);
parport_put_port(p);
kfree(ops);
dev_set_drvdata(&dev->dev, NULL);
return 0;
}
static struct of_device_id bpp_match[] = {
{
.name = "SUNW,bpp",
},
{},
};
MODULE_DEVICE_TABLE(of, qec_sbus_match);
static struct of_platform_driver bpp_sbus_driver = {
.name = "bpp",
.match_table = bpp_match,
.probe = bpp_probe,
.remove = __devexit_p(bpp_remove),
};
static int __init parport_sunbpp_init(void)
{
struct sbus_bus *sbus;
struct sbus_dev *sdev;
int count = 0;
for_each_sbus(sbus) {
for_each_sbusdev(sdev, sbus) {
if (!strcmp(sdev->prom_name, "SUNW,bpp"))
count += init_one_port(sdev);
}
}
return count ? 0 : -ENODEV;
return of_register_driver(&bpp_sbus_driver, &sbus_bus_type);
}
static void __exit parport_sunbpp_exit(void)
{
while (!list_empty(&port_list)) {
Node *node = list_entry(port_list.next, Node, list);
struct parport *p = node->port;
struct parport_operations *ops = p->ops;
parport_remove_port(p);
if (p->irq != PARPORT_IRQ_NONE) {
parport_sunbpp_disable_irq(p);
free_irq(p->irq, p);
}
sbus_iounmap((void __iomem *)p->base, p->size);
parport_put_port(p);
kfree (ops);
list_del(&node->list);
kfree (node);
}
of_unregister_driver(&bpp_sbus_driver);
}
MODULE_AUTHOR("Derrick J Brashear");
MODULE_DESCRIPTION("Parport Driver for Sparc bidirectional Port");
MODULE_SUPPORTED_DEVICE("Sparc Bidirectional Parallel Port");
MODULE_VERSION("2.0");
MODULE_LICENSE("GPL");
module_init(parport_sunbpp_init)