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Commit 224b148e authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/scjody/ieee1394 



* 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/scjody/ieee1394:
  ohci1394: cleanup the "Unexpected PCI resource length" warning.
  sbp2: misc debug logging cleanups
  sbp2: proper treatment of DID_OK
  ieee1394: set read permission for parameter disable_irm
  sbp2: check for ARM failure
  ohci1394: clean up asynchronous and physical request filters programming
  ieee1394: remove amdtp remains from ieee1394_core.h
  ieee1394: remove devfs support
  Signed-off-by: default avatarJody McIntyre <scjody@modernduck.com>
  sbp2: prevent unloading of 1394 low-level driver
parents 54767908 c0e4077c

drivers/ieee1394/dv1394.c

+2 −39
Original line number Diff line number Diff line
@@ -73,7 +73,7 @@ 
  - fix all XXX showstoppers

  - disable IR/IT DMA interrupts on shutdown

  - flush pci writes to the card by issuing a read

  - devfs and character device dispatching (* needs testing with Linux 2.2.x)

  - character device dispatching

  - switch over to the new kernel DMA API (pci_map_*()) (* needs testing on platforms with IOMMU!)

  - keep all video_cards in a list (for open() via chardev), set file->private_data = video

  - dv1394_poll should indicate POLLIN when receiving buffers are available
@@ -1096,7 +1096,6 @@ static int do_dv1394_init_default(struct video_card *video) 


	init.api_version = DV1394_API_VERSION;

	init.n_frames = DV1394_MAX_FRAMES / 4;

	/* the following are now set via devfs */

	init.channel = video->channel;

	init.format = video->pal_or_ntsc;

	init.cip_n = video->cip_n;
@@ -1791,8 +1790,6 @@ static int dv1394_open(struct inode *inode, struct file *file) 
{

	struct video_card *video = NULL;



	/* if the device was opened through devfs, then file->private_data

	   has already been set to video by devfs */

	if (file->private_data) {

		video = (struct video_card*) file->private_data;
@@ -2211,7 +2208,7 @@ static int dv1394_init(struct ti_ohci *ohci, enum pal_or_ntsc format, enum modes 
	video = kzalloc(sizeof(*video), GFP_KERNEL);

	if (!video) {

		printk(KERN_ERR "dv1394: cannot allocate video_card\n");

		goto err;

		return -1;

	}



	video->ohci = ohci;
@@ -2266,37 +2263,14 @@ static int dv1394_init(struct ti_ohci *ohci, enum pal_or_ntsc format, enum modes 
	list_add_tail(&video->list, &dv1394_cards);

	spin_unlock_irqrestore(&dv1394_cards_lock, flags);



	if (devfs_mk_cdev(MKDEV(IEEE1394_MAJOR,

				IEEE1394_MINOR_BLOCK_DV1394*16 + video->id),

			S_IFCHR|S_IRUGO|S_IWUGO,

			 "ieee1394/dv/host%d/%s/%s",

			 (video->id>>2),

			 (video->pal_or_ntsc == DV1394_NTSC ? "NTSC" : "PAL"),

			 (video->mode == MODE_RECEIVE ? "in" : "out")) < 0)

			goto err_free;



	debug_printk("dv1394: dv1394_init() OK on ID %d\n", video->id);



	return 0;



 err_free:

	kfree(video);

 err:

	return -1;

}



static void dv1394_un_init(struct video_card *video)

{

	char buf[32];



	/* obviously nobody has the driver open at this point */

	do_dv1394_shutdown(video, 1);

	snprintf(buf, sizeof(buf), "dv/host%d/%s/%s", (video->id >> 2),

		(video->pal_or_ntsc == DV1394_NTSC ? "NTSC" : "PAL"),

		(video->mode == MODE_RECEIVE ? "in" : "out")

		);



	devfs_remove("ieee1394/%s", buf);

	kfree(video);

}
@@ -2333,9 +2307,6 @@ static void dv1394_remove_host (struct hpsb_host *host) 


	class_device_destroy(hpsb_protocol_class,

		MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_DV1394 * 16 + (id<<2)));

	devfs_remove("ieee1394/dv/host%d/NTSC", id);

	devfs_remove("ieee1394/dv/host%d/PAL", id);

	devfs_remove("ieee1394/dv/host%d", id);

}



static void dv1394_add_host (struct hpsb_host *host)
@@ -2352,9 +2323,6 @@ static void dv1394_add_host (struct hpsb_host *host) 
	class_device_create(hpsb_protocol_class, NULL, MKDEV(

		IEEE1394_MAJOR,	IEEE1394_MINOR_BLOCK_DV1394 * 16 + (id<<2)), 

		NULL, "dv1394-%d", id);

	devfs_mk_dir("ieee1394/dv/host%d", id);

	devfs_mk_dir("ieee1394/dv/host%d/NTSC", id);

	devfs_mk_dir("ieee1394/dv/host%d/PAL", id);



	dv1394_init(ohci, DV1394_NTSC, MODE_RECEIVE);

	dv1394_init(ohci, DV1394_NTSC, MODE_TRANSMIT);
@@ -2611,10 +2579,8 @@ MODULE_LICENSE("GPL"); 
static void __exit dv1394_exit_module(void)

{

	hpsb_unregister_protocol(&dv1394_driver);



	hpsb_unregister_highlevel(&dv1394_highlevel);

	cdev_del(&dv1394_cdev);

	devfs_remove("ieee1394/dv");

}



static int __init dv1394_init_module(void)
@@ -2630,15 +2596,12 @@ static int __init dv1394_init_module(void) 
		return ret;

	}



	devfs_mk_dir("ieee1394/dv");



	hpsb_register_highlevel(&dv1394_highlevel);



	ret = hpsb_register_protocol(&dv1394_driver);

	if (ret) {

		printk(KERN_ERR "dv1394: failed to register protocol\n");

		hpsb_unregister_highlevel(&dv1394_highlevel);

		devfs_remove("ieee1394/dv");

		cdev_del(&dv1394_cdev);

		return ret;

	}

drivers/ieee1394/ieee1394_core.c

+3 −13
Original line number Diff line number Diff line
@@ -58,7 +58,7 @@ MODULE_PARM_DESC(disable_nodemgr, "Disable nodemgr functionality."); 


/* Disable Isochronous Resource Manager functionality */

int hpsb_disable_irm = 0;

module_param_named(disable_irm, hpsb_disable_irm, bool, 0);

module_param_named(disable_irm, hpsb_disable_irm, bool, 0444);

MODULE_PARM_DESC(disable_irm,

		 "Disable Isochronous Resource Manager functionality.");
@@ -1078,17 +1078,10 @@ static int __init ieee1394_init(void) 
		goto exit_release_kernel_thread;

	}



	/* actually this is a non-fatal error */

	ret = devfs_mk_dir("ieee1394");

	if (ret < 0) {

		HPSB_ERR("unable to make devfs dir for device major %d!\n", IEEE1394_MAJOR);

		goto release_chrdev;

	}



	ret = bus_register(&ieee1394_bus_type);

	if (ret < 0) {

		HPSB_INFO("bus register failed");

		goto release_devfs;

		goto release_chrdev;

	}



	for (i = 0; fw_bus_attrs[i]; i++) {
@@ -1099,7 +1092,7 @@ static int __init ieee1394_init(void) 
						fw_bus_attrs[i--]);

			}

			bus_unregister(&ieee1394_bus_type);

			goto release_devfs;

			goto release_chrdev;

		}

	}
@@ -1152,8 +1145,6 @@ release_all_bus: 
	for (i = 0; fw_bus_attrs[i]; i++)

		bus_remove_file(&ieee1394_bus_type, fw_bus_attrs[i]);

	bus_unregister(&ieee1394_bus_type);

release_devfs:

	devfs_remove("ieee1394");

release_chrdev:

	unregister_chrdev_region(IEEE1394_CORE_DEV, 256);

exit_release_kernel_thread:
@@ -1191,7 +1182,6 @@ static void __exit ieee1394_cleanup(void) 
	hpsb_cleanup_config_roms();



	unregister_chrdev_region(IEEE1394_CORE_DEV, 256);

	devfs_remove("ieee1394");

}



module_init(ieee1394_init);

drivers/ieee1394/ieee1394_core.h

+0 −3
Original line number Diff line number Diff line
@@ -3,7 +3,6 @@ 
#define _IEEE1394_CORE_H



#include <linux/slab.h>

#include <linux/devfs_fs_kernel.h>

#include <asm/atomic.h>

#include <asm/semaphore.h>

#include "hosts.h"
@@ -202,14 +201,12 @@ void hpsb_packet_received(struct hpsb_host *host, quadlet_t *data, size_t size, 
#define IEEE1394_MINOR_BLOCK_RAW1394	   0

#define IEEE1394_MINOR_BLOCK_VIDEO1394	   1

#define IEEE1394_MINOR_BLOCK_DV1394	   2

#define IEEE1394_MINOR_BLOCK_AMDTP	   3

#define IEEE1394_MINOR_BLOCK_EXPERIMENTAL 15



#define IEEE1394_CORE_DEV	  MKDEV(IEEE1394_MAJOR, 0)

#define IEEE1394_RAW1394_DEV	  MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_RAW1394 * 16)

#define IEEE1394_VIDEO1394_DEV	  MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_VIDEO1394 * 16)

#define IEEE1394_DV1394_DEV	  MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_DV1394 * 16)

#define IEEE1394_AMDTP_DEV	  MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_AMDTP * 16)

#define IEEE1394_EXPERIMENTAL_DEV MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_EXPERIMENTAL * 16)



/* return the index (within a minor number block) of a file */

drivers/ieee1394/ohci1394.c

+26 −23
Original line number Diff line number Diff line
@@ -544,13 +544,20 @@ static void ohci_initialize(struct ti_ohci *ohci) 
	/* Initialize IR Legacy DMA channel mask */

	ohci->ir_legacy_channels = 0;



	/*

	 * Accept AT requests from all nodes. This probably

	 * will have to be controlled from the subsystem

	 * on a per node basis.

	 */

	/* Accept AR requests from all nodes */

	reg_write(ohci, OHCI1394_AsReqFilterHiSet, 0x80000000);



	/* Set the address range of the physical response unit.

	 * Most controllers do not implement it as a writable register though.

	 * They will keep a hardwired offset of 0x00010000 and show 0x0 as

	 * register content.

	 * To actually enable physical responses is the job of our interrupt

	 * handler which programs the physical request filter. */

	reg_write(ohci, OHCI1394_PhyUpperBound, 0xffff0000);



	DBGMSG("physUpperBoundOffset=%08x",

	       reg_read(ohci, OHCI1394_PhyUpperBound));



	/* Specify AT retries */

	reg_write(ohci, OHCI1394_ATRetries,

		  OHCI1394_MAX_AT_REQ_RETRIES |
@@ -572,6 +579,7 @@ static void ohci_initialize(struct ti_ohci *ohci) 
		  OHCI1394_reqTxComplete |

		  OHCI1394_isochRx |

		  OHCI1394_isochTx |

		  OHCI1394_postedWriteErr |

		  OHCI1394_cycleInconsistent);



	/* Enable link */
@@ -2374,7 +2382,10 @@ static irqreturn_t ohci_irq_handler(int irq, void *dev_id, 


		event &= ~OHCI1394_unrecoverableError;

	}



	if (event & OHCI1394_postedWriteErr) {

		PRINT(KERN_ERR, "physical posted write error");

		/* no recovery strategy yet, had to involve protocol drivers */

	}

	if (event & OHCI1394_cycleInconsistent) {

		/* We subscribe to the cycleInconsistent event only to

		 * clear the corresponding event bit... otherwise,
@@ -2382,7 +2393,6 @@ static irqreturn_t ohci_irq_handler(int irq, void *dev_id, 
		DBGMSG("OHCI1394_cycleInconsistent");

		event &= ~OHCI1394_cycleInconsistent;

	}



	if (event & OHCI1394_busReset) {

		/* The busReset event bit can't be cleared during the

		 * selfID phase, so we disable busReset interrupts, to
@@ -2426,7 +2436,6 @@ static irqreturn_t ohci_irq_handler(int irq, void *dev_id, 
		}

		event &= ~OHCI1394_busReset;

	}



	if (event & OHCI1394_reqTxComplete) {

		struct dma_trm_ctx *d = &ohci->at_req_context;

		DBGMSG("Got reqTxComplete interrupt "
@@ -2514,21 +2523,15 @@ static irqreturn_t ohci_irq_handler(int irq, void *dev_id, 
			reg_write(ohci, OHCI1394_IntMaskSet, OHCI1394_busReset);

			spin_unlock_irqrestore(&ohci->event_lock, flags);



			/* Accept Physical requests from all nodes. */

			reg_write(ohci,OHCI1394_AsReqFilterHiSet, 0xffffffff);

			reg_write(ohci,OHCI1394_AsReqFilterLoSet, 0xffffffff);



			/* Turn on phys dma reception.

			 *

			 * TODO: Enable some sort of filtering management.

			 */

			if (phys_dma) {

				reg_write(ohci,OHCI1394_PhyReqFilterHiSet, 0xffffffff);

				reg_write(ohci,OHCI1394_PhyReqFilterLoSet, 0xffffffff);

				reg_write(ohci,OHCI1394_PhyUpperBound, 0xffff0000);

			} else {

				reg_write(ohci,OHCI1394_PhyReqFilterHiSet, 0x00000000);

				reg_write(ohci,OHCI1394_PhyReqFilterLoSet, 0x00000000);

				reg_write(ohci, OHCI1394_PhyReqFilterHiSet,

					  0xffffffff);

				reg_write(ohci, OHCI1394_PhyReqFilterLoSet,

					  0xffffffff);

			}



			DBGMSG("PhyReqFilter=%08x%08x",
@@ -3259,8 +3262,8 @@ static int __devinit ohci1394_pci_probe(struct pci_dev *dev, 
	 * fail to report the right length.  Anyway, the ohci spec

	 * clearly says it's 2kb, so this shouldn't be a problem. */

	ohci_base = pci_resource_start(dev, 0);

	if (pci_resource_len(dev, 0) != OHCI1394_REGISTER_SIZE)

		PRINT(KERN_WARNING, "Unexpected PCI resource length of %lx!",

	if (pci_resource_len(dev, 0) < OHCI1394_REGISTER_SIZE)

		PRINT(KERN_WARNING, "PCI resource length of %lx too small!",

		      pci_resource_len(dev, 0));



	/* Seems PCMCIA handles this internally. Not sure why. Seems

drivers/ieee1394/raw1394.c

+0 −6
Original line number Diff line number Diff line
@@ -41,7 +41,6 @@ 
#include <linux/cdev.h>

#include <asm/uaccess.h>

#include <asm/atomic.h>

#include <linux/devfs_fs_kernel.h>

#include <linux/compat.h>



#include "csr1212.h"
@@ -2999,9 +2998,6 @@ static int __init init_raw1394(void) 
		goto out_unreg;

	}



	devfs_mk_cdev(MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_RAW1394 * 16),

		      S_IFCHR | S_IRUSR | S_IWUSR, RAW1394_DEVICE_NAME);



	cdev_init(&raw1394_cdev, &raw1394_fops);

	raw1394_cdev.owner = THIS_MODULE;

	kobject_set_name(&raw1394_cdev.kobj, RAW1394_DEVICE_NAME);
@@ -3023,7 +3019,6 @@ static int __init init_raw1394(void) 
	goto out;



      out_dev:

	devfs_remove(RAW1394_DEVICE_NAME);

	class_device_destroy(hpsb_protocol_class,

			     MKDEV(IEEE1394_MAJOR,

				   IEEE1394_MINOR_BLOCK_RAW1394 * 16));
@@ -3039,7 +3034,6 @@ static void __exit cleanup_raw1394(void) 
			     MKDEV(IEEE1394_MAJOR,

				   IEEE1394_MINOR_BLOCK_RAW1394 * 16));

	cdev_del(&raw1394_cdev);

	devfs_remove(RAW1394_DEVICE_NAME);

	hpsb_unregister_highlevel(&raw1394_highlevel);

	hpsb_unregister_protocol(&raw1394_driver);

}