-/* parport_sunbpp.c: Parallel-port routines for SBUS
+/* $Id: parport_sunbpp.c,v 1.12 2001/05/26 03:01:42 davem Exp $
+ * Parallel-port routines for Sun architecture
*
* 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>
.owner = THIS_MODULE,
};
-static int __devinit init_one_port(struct sbus_dev *sdev)
+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)
{
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)
- return -ENODEV;
+ goto out1;
size = sdev->reg_addrs[0].reg_size;
dma = PARPORT_DMA_NONE;
- ops = kmalloc(sizeof(struct parport_operations), GFP_KERNEL);
+ dprintk(("alloc(ppops), "));
+ ops = kmalloc (sizeof (struct parport_operations), GFP_KERNEL);
if (!ops)
- goto out_unmap;
+ goto out2;
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 out_free_ops;
+ goto out3;
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,
- IRQF_SHARED, p->name, p)) != 0) {
- goto out_put_port;
+ SA_SHIRQ, p->name, p)) != 0) {
+ dprintk(("ERROR %d\n", err));
+ goto out4;
}
-
+ 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);
- dev_set_drvdata(&sdev->ofdev.dev, p);
-
- parport_announce_port(p);
-
- return 0;
+ return 1;
-out_put_port:
+out4:
parport_put_port(p);
-
-out_free_ops:
+out3:
kfree(ops);
-
-out_unmap:
+out2:
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, 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);
+ 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;
}
static void __exit parport_sunbpp_exit(void)
{
- of_unregister_driver(&bpp_sbus_driver);
+ 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);
+ }
}
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