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

/* $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>

	.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);

        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);

	dev_set_drvdata(&sdev->ofdev.dev, p);

	parport_announce_port(p);

	return 1;

	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;

	struct sbus_dev *sdev = to_sbus_device(&dev->dev);

	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 init_one_port(sdev);

}

static void __exit parport_sunbpp_exit(void)

static int __devexit bpp_remove(struct of_device *dev)

{

	while (!list_empty(&port_list)) {

		Node *node = list_entry(port_list.next, Node, list);

		struct parport *p = node->port;

	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);

		list_del(&node->list);

		kfree (node);

	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)

{

	return of_register_driver(&bpp_sbus_driver, &sbus_bus_type);

}

static void __exit parport_sunbpp_exit(void)

{

	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)