diff options
Diffstat (limited to 'drivers/parport')
-rw-r--r-- | drivers/parport/parport_sunbpp.c | 134 |
1 files changed, 70 insertions, 64 deletions
diff --git a/drivers/parport/parport_sunbpp.c b/drivers/parport/parport_sunbpp.c index 36a1556e64c7..69a4bbd4cbee 100644 --- a/drivers/parport/parport_sunbpp.c +++ b/drivers/parport/parport_sunbpp.c | |||
@@ -1,5 +1,4 @@ | |||
1 | /* $Id: parport_sunbpp.c,v 1.12 2001/05/26 03:01:42 davem Exp $ | 1 | /* parport_sunbpp.c: Parallel-port routines for SBUS |
2 | * Parallel-port routines for Sun architecture | ||
3 | * | 2 | * |
4 | * Author: Derrick J. Brashear <shadow@dementia.org> | 3 | * Author: Derrick J. Brashear <shadow@dementia.org> |
5 | * | 4 | * |
@@ -14,6 +13,9 @@ | |||
14 | * Gus Baldauf (gbaldauf@ix.netcom.com) | 13 | * Gus Baldauf (gbaldauf@ix.netcom.com) |
15 | * Peter Zaitcev | 14 | * Peter Zaitcev |
16 | * Tom Dyas | 15 | * Tom Dyas |
16 | * | ||
17 | * Updated to new SBUS device framework: David S. Miller <davem@davemloft.net> | ||
18 | * | ||
17 | */ | 19 | */ |
18 | 20 | ||
19 | #include <linux/string.h> | 21 | #include <linux/string.h> |
@@ -287,14 +289,7 @@ static struct parport_operations parport_sunbpp_ops = | |||
287 | .owner = THIS_MODULE, | 289 | .owner = THIS_MODULE, |
288 | }; | 290 | }; |
289 | 291 | ||
290 | typedef struct { | 292 | static int __devinit init_one_port(struct sbus_dev *sdev) |
291 | struct list_head list; | ||
292 | struct parport *port; | ||
293 | } Node; | ||
294 | /* no locks, everything's serialized */ | ||
295 | static LIST_HEAD(port_list); | ||
296 | |||
297 | static int __init init_one_port(struct sbus_dev *sdev) | ||
298 | { | 293 | { |
299 | struct parport *p; | 294 | struct parport *p; |
300 | /* at least in theory there may be a "we don't dma" case */ | 295 | /* 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) | |||
303 | int irq, dma, err = 0, size; | 298 | int irq, dma, err = 0, size; |
304 | struct bpp_regs __iomem *regs; | 299 | struct bpp_regs __iomem *regs; |
305 | unsigned char value_tcr; | 300 | unsigned char value_tcr; |
306 | Node *node; | ||
307 | |||
308 | dprintk((KERN_DEBUG "init_one_port(%p): ranges, alloc_io, ", sdev)); | ||
309 | node = kmalloc(sizeof(Node), GFP_KERNEL); | ||
310 | if (!node) | ||
311 | goto out0; | ||
312 | 301 | ||
313 | irq = sdev->irqs[0]; | 302 | irq = sdev->irqs[0]; |
314 | base = sbus_ioremap(&sdev->resource[0], 0, | 303 | base = sbus_ioremap(&sdev->resource[0], 0, |
315 | sdev->reg_addrs[0].reg_size, | 304 | sdev->reg_addrs[0].reg_size, |
316 | "sunbpp"); | 305 | "sunbpp"); |
317 | if (!base) | 306 | if (!base) |
318 | goto out1; | 307 | return -ENODEV; |
319 | 308 | ||
320 | size = sdev->reg_addrs[0].reg_size; | 309 | size = sdev->reg_addrs[0].reg_size; |
321 | dma = PARPORT_DMA_NONE; | 310 | dma = PARPORT_DMA_NONE; |
322 | 311 | ||
323 | dprintk(("alloc(ppops), ")); | 312 | ops = kmalloc(sizeof(struct parport_operations), GFP_KERNEL); |
324 | ops = kmalloc (sizeof (struct parport_operations), GFP_KERNEL); | ||
325 | if (!ops) | 313 | if (!ops) |
326 | goto out2; | 314 | goto out_unmap; |
327 | 315 | ||
328 | memcpy (ops, &parport_sunbpp_ops, sizeof (struct parport_operations)); | 316 | memcpy (ops, &parport_sunbpp_ops, sizeof (struct parport_operations)); |
329 | 317 | ||
330 | dprintk(("register_port\n")); | 318 | dprintk(("register_port\n")); |
331 | if (!(p = parport_register_port((unsigned long)base, irq, dma, ops))) | 319 | if (!(p = parport_register_port((unsigned long)base, irq, dma, ops))) |
332 | goto out3; | 320 | goto out_free_ops; |
333 | 321 | ||
334 | p->size = size; | 322 | p->size = size; |
335 | 323 | ||
336 | dprintk((KERN_DEBUG "init_one_port: request_irq(%08x:%p:%x:%s:%p) ", | ||
337 | p->irq, parport_sunbpp_interrupt, SA_SHIRQ, p->name, p)); | ||
338 | if ((err = request_irq(p->irq, parport_sunbpp_interrupt, | 324 | if ((err = request_irq(p->irq, parport_sunbpp_interrupt, |
339 | SA_SHIRQ, p->name, p)) != 0) { | 325 | SA_SHIRQ, p->name, p)) != 0) { |
340 | dprintk(("ERROR %d\n", err)); | 326 | goto out_put_port; |
341 | goto out4; | ||
342 | } | 327 | } |
343 | dprintk(("OK\n")); | 328 | |
344 | parport_sunbpp_enable_irq(p); | 329 | parport_sunbpp_enable_irq(p); |
345 | 330 | ||
346 | regs = (struct bpp_regs __iomem *)p->base; | 331 | regs = (struct bpp_regs __iomem *)p->base; |
347 | dprintk((KERN_DEBUG "forward\n")); | 332 | |
348 | value_tcr = sbus_readb(®s->p_tcr); | 333 | value_tcr = sbus_readb(®s->p_tcr); |
349 | value_tcr &= ~P_TCR_DIR; | 334 | value_tcr &= ~P_TCR_DIR; |
350 | sbus_writeb(value_tcr, ®s->p_tcr); | 335 | sbus_writeb(value_tcr, ®s->p_tcr); |
351 | 336 | ||
352 | printk(KERN_INFO "%s: sunbpp at 0x%lx\n", p->name, p->base); | 337 | printk(KERN_INFO "%s: sunbpp at 0x%lx\n", p->name, p->base); |
353 | node->port = p; | ||
354 | list_add(&node->list, &port_list); | ||
355 | parport_announce_port (p); | ||
356 | 338 | ||
357 | return 1; | 339 | dev_set_drvdata(&sdev->ofdev.dev, p); |
340 | |||
341 | parport_announce_port(p); | ||
342 | |||
343 | return 0; | ||
358 | 344 | ||
359 | out4: | 345 | out_put_port: |
360 | parport_put_port(p); | 346 | parport_put_port(p); |
361 | out3: | 347 | |
348 | out_free_ops: | ||
362 | kfree(ops); | 349 | kfree(ops); |
363 | out2: | 350 | |
351 | out_unmap: | ||
364 | sbus_iounmap(base, size); | 352 | sbus_iounmap(base, size); |
365 | out1: | 353 | |
366 | kfree(node); | ||
367 | out0: | ||
368 | return err; | 354 | return err; |
369 | } | 355 | } |
370 | 356 | ||
371 | static int __init parport_sunbpp_init(void) | 357 | static int __devinit bpp_probe(struct of_device *dev, const struct of_device_id *match) |
372 | { | 358 | { |
373 | struct sbus_bus *sbus; | 359 | struct sbus_dev *sdev = to_sbus_device(&dev->dev); |
374 | struct sbus_dev *sdev; | 360 | |
375 | int count = 0; | 361 | return init_one_port(sdev); |
376 | 362 | } | |
377 | for_each_sbus(sbus) { | 363 | |
378 | for_each_sbusdev(sdev, sbus) { | 364 | static int __devexit bpp_remove(struct of_device *dev) |
379 | if (!strcmp(sdev->prom_name, "SUNW,bpp")) | 365 | { |
380 | count += init_one_port(sdev); | 366 | struct parport *p = dev_get_drvdata(&dev->dev); |
381 | } | 367 | struct parport_operations *ops = p->ops; |
368 | |||
369 | parport_remove_port(p); | ||
370 | |||
371 | if (p->irq != PARPORT_IRQ_NONE) { | ||
372 | parport_sunbpp_disable_irq(p); | ||
373 | free_irq(p->irq, p); | ||
382 | } | 374 | } |
383 | return count ? 0 : -ENODEV; | 375 | |
376 | sbus_iounmap((void __iomem *) p->base, p->size); | ||
377 | parport_put_port(p); | ||
378 | kfree(ops); | ||
379 | |||
380 | dev_set_drvdata(&dev->dev, NULL); | ||
381 | |||
382 | return 0; | ||
383 | } | ||
384 | |||
385 | static struct of_device_id bpp_match[] = { | ||
386 | { | ||
387 | .name = "SUNW,bpp", | ||
388 | }, | ||
389 | {}, | ||
390 | }; | ||
391 | |||
392 | MODULE_DEVICE_TABLE(of, qec_sbus_match); | ||
393 | |||
394 | static struct of_platform_driver bpp_sbus_driver = { | ||
395 | .name = "bpp", | ||
396 | .match_table = bpp_match, | ||
397 | .probe = bpp_probe, | ||
398 | .remove = __devexit_p(bpp_remove), | ||
399 | }; | ||
400 | |||
401 | static int __init parport_sunbpp_init(void) | ||
402 | { | ||
403 | return of_register_driver(&bpp_sbus_driver, &sbus_bus_type); | ||
384 | } | 404 | } |
385 | 405 | ||
386 | static void __exit parport_sunbpp_exit(void) | 406 | static void __exit parport_sunbpp_exit(void) |
387 | { | 407 | { |
388 | while (!list_empty(&port_list)) { | 408 | of_unregister_driver(&bpp_sbus_driver); |
389 | Node *node = list_entry(port_list.next, Node, list); | ||
390 | struct parport *p = node->port; | ||
391 | struct parport_operations *ops = p->ops; | ||
392 | parport_remove_port(p); | ||
393 | |||
394 | if (p->irq != PARPORT_IRQ_NONE) { | ||
395 | parport_sunbpp_disable_irq(p); | ||
396 | free_irq(p->irq, p); | ||
397 | } | ||
398 | sbus_iounmap((void __iomem *)p->base, p->size); | ||
399 | parport_put_port(p); | ||
400 | kfree (ops); | ||
401 | list_del(&node->list); | ||
402 | kfree (node); | ||
403 | } | ||
404 | } | 409 | } |
405 | 410 | ||
406 | MODULE_AUTHOR("Derrick J Brashear"); | 411 | MODULE_AUTHOR("Derrick J Brashear"); |
407 | MODULE_DESCRIPTION("Parport Driver for Sparc bidirectional Port"); | 412 | MODULE_DESCRIPTION("Parport Driver for Sparc bidirectional Port"); |
408 | MODULE_SUPPORTED_DEVICE("Sparc Bidirectional Parallel Port"); | 413 | MODULE_SUPPORTED_DEVICE("Sparc Bidirectional Parallel Port"); |
414 | MODULE_VERSION("2.0"); | ||
409 | MODULE_LICENSE("GPL"); | 415 | MODULE_LICENSE("GPL"); |
410 | 416 | ||
411 | module_init(parport_sunbpp_init) | 417 | module_init(parport_sunbpp_init) |