-/* $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>
*
* 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>
#define dprintk(x)
#endif
-static irqreturn_t parport_sunbpp_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t parport_sunbpp_interrupt(int irq, void *dev_id)
{
- parport_generic_irq(irq, (struct parport *) dev_id, regs);
+ parport_generic_irq(irq, (struct parport *) dev_id);
return IRQ_HANDLED;
}
.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 */
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;
+ IRQF_SHARED, p->name, p)) != 0) {
+ 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(®s->p_tcr);
value_tcr &= ~P_TCR_DIR;
sbus_writeb(value_tcr, ®s->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);
+
+ parport_announce_port(p);
+
+ return 0;
-out4:
+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 __init parport_sunbpp_init(void)
+static int __devinit bpp_probe(struct of_device *dev, const struct of_device_id *match)
{
- 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);
- }
+ 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);
}
- return count ? 0 : -ENODEV;
+
+ 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, bpp_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)
+{
+ 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)
git://git.onelab.eu / linux-2.6.git / blobdiff