mirror of https://gitee.com/openkylin/linux.git
[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
parent
9eccf1b312
commit
4f62d158a3
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@ -1,5 +1,4 @@
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/* $Id: parport_sunbpp.c,v 1.12 2001/05/26 03:01:42 davem Exp $
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* Parallel-port routines for Sun architecture
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/* parport_sunbpp.c: Parallel-port routines for SBUS
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*
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* Author: Derrick J. Brashear <shadow@dementia.org>
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*
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@ -14,6 +13,9 @@
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* Gus Baldauf (gbaldauf@ix.netcom.com)
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* Peter Zaitcev
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* Tom Dyas
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*
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* Updated to new SBUS device framework: David S. Miller <davem@davemloft.net>
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*
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*/
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#include <linux/string.h>
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@ -287,14 +289,7 @@ static struct parport_operations parport_sunbpp_ops =
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.owner = THIS_MODULE,
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};
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typedef struct {
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struct list_head list;
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struct parport *port;
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} Node;
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/* no locks, everything's serialized */
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static LIST_HEAD(port_list);
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static int __init init_one_port(struct sbus_dev *sdev)
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static int __devinit init_one_port(struct sbus_dev *sdev)
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{
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struct parport *p;
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/* at least in theory there may be a "we don't dma" case */
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@ -303,109 +298,120 @@ static int __init init_one_port(struct sbus_dev *sdev)
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int irq, dma, err = 0, size;
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struct bpp_regs __iomem *regs;
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unsigned char value_tcr;
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Node *node;
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dprintk((KERN_DEBUG "init_one_port(%p): ranges, alloc_io, ", sdev));
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node = kmalloc(sizeof(Node), GFP_KERNEL);
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if (!node)
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goto out0;
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irq = sdev->irqs[0];
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base = sbus_ioremap(&sdev->resource[0], 0,
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sdev->reg_addrs[0].reg_size,
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"sunbpp");
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if (!base)
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goto out1;
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return -ENODEV;
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size = sdev->reg_addrs[0].reg_size;
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dma = PARPORT_DMA_NONE;
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dprintk(("alloc(ppops), "));
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ops = kmalloc (sizeof (struct parport_operations), GFP_KERNEL);
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ops = kmalloc(sizeof(struct parport_operations), GFP_KERNEL);
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if (!ops)
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goto out2;
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goto out_unmap;
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memcpy (ops, &parport_sunbpp_ops, sizeof (struct parport_operations));
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dprintk(("register_port\n"));
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if (!(p = parport_register_port((unsigned long)base, irq, dma, ops)))
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goto out3;
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goto out_free_ops;
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p->size = size;
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dprintk((KERN_DEBUG "init_one_port: request_irq(%08x:%p:%x:%s:%p) ",
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p->irq, parport_sunbpp_interrupt, SA_SHIRQ, p->name, p));
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if ((err = request_irq(p->irq, parport_sunbpp_interrupt,
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SA_SHIRQ, p->name, p)) != 0) {
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dprintk(("ERROR %d\n", err));
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goto out4;
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goto out_put_port;
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}
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dprintk(("OK\n"));
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parport_sunbpp_enable_irq(p);
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regs = (struct bpp_regs __iomem *)p->base;
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dprintk((KERN_DEBUG "forward\n"));
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value_tcr = sbus_readb(®s->p_tcr);
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value_tcr &= ~P_TCR_DIR;
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sbus_writeb(value_tcr, ®s->p_tcr);
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printk(KERN_INFO "%s: sunbpp at 0x%lx\n", p->name, p->base);
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node->port = p;
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list_add(&node->list, &port_list);
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parport_announce_port (p);
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return 1;
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dev_set_drvdata(&sdev->ofdev.dev, p);
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out4:
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parport_announce_port(p);
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return 0;
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out_put_port:
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parport_put_port(p);
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out3:
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out_free_ops:
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kfree(ops);
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out2:
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out_unmap:
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sbus_iounmap(base, size);
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out1:
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kfree(node);
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out0:
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return err;
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}
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static int __init parport_sunbpp_init(void)
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static int __devinit bpp_probe(struct of_device *dev, const struct of_device_id *match)
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{
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struct sbus_bus *sbus;
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struct sbus_dev *sdev;
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int count = 0;
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struct sbus_dev *sdev = to_sbus_device(&dev->dev);
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for_each_sbus(sbus) {
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for_each_sbusdev(sdev, sbus) {
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if (!strcmp(sdev->prom_name, "SUNW,bpp"))
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count += init_one_port(sdev);
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}
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}
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return count ? 0 : -ENODEV;
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return init_one_port(sdev);
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}
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static void __exit parport_sunbpp_exit(void)
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static int __devexit bpp_remove(struct of_device *dev)
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{
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while (!list_empty(&port_list)) {
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Node *node = list_entry(port_list.next, Node, list);
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struct parport *p = node->port;
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struct parport *p = dev_get_drvdata(&dev->dev);
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struct parport_operations *ops = p->ops;
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parport_remove_port(p);
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if (p->irq != PARPORT_IRQ_NONE) {
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parport_sunbpp_disable_irq(p);
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free_irq(p->irq, p);
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}
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sbus_iounmap((void __iomem *)p->base, p->size);
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sbus_iounmap((void __iomem *) p->base, p->size);
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parport_put_port(p);
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kfree (ops);
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list_del(&node->list);
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kfree (node);
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}
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kfree(ops);
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dev_set_drvdata(&dev->dev, NULL);
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return 0;
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}
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static struct of_device_id bpp_match[] = {
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{
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.name = "SUNW,bpp",
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},
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{},
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};
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MODULE_DEVICE_TABLE(of, qec_sbus_match);
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static struct of_platform_driver bpp_sbus_driver = {
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.name = "bpp",
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.match_table = bpp_match,
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.probe = bpp_probe,
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.remove = __devexit_p(bpp_remove),
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};
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static int __init parport_sunbpp_init(void)
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{
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return of_register_driver(&bpp_sbus_driver, &sbus_bus_type);
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}
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static void __exit parport_sunbpp_exit(void)
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{
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of_unregister_driver(&bpp_sbus_driver);
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}
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MODULE_AUTHOR("Derrick J Brashear");
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MODULE_DESCRIPTION("Parport Driver for Sparc bidirectional Port");
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MODULE_SUPPORTED_DEVICE("Sparc Bidirectional Parallel Port");
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MODULE_VERSION("2.0");
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MODULE_LICENSE("GPL");
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module_init(parport_sunbpp_init)
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