Return to pvrusb2-wm8775.c CVS log

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Update 2.6.x-xfs to 2.6.23-rc4.

Also update fs/xfs with external mainline changes.
There were 12 such missing commits that I detected:

--------
commit ad690ef9e690f6c31f7d310b09ef1314bcec9033
Author: Al Viro <viro@ftp.linux.org.uk>
    xfs ioctl __user annotations

commit 20c2df83d25c6a95affe6157a4c9cac4cf5ffaac
Author: Paul Mundt <lethal@linux-sh.org>
    mm: Remove slab destructors from kmem_cache_create().

commit d0217ac04ca6591841e5665f518e38064f4e65bd
Author: Nick Piggin <npiggin@suse.de>
    mm: fault feedback #1

commit 54cb8821de07f2ffcd28c380ce9b93d5784b40d7
Author: Nick Piggin <npiggin@suse.de>
    mm: merge populate and nopage into fault (fixes nonlinear)

commit d00806b183152af6d24f46f0c33f14162ca1262a
Author: Nick Piggin <npiggin@suse.de>
    mm: fix fault vs invalidate race for linear mappings

commit a569425512253992cc64ebf8b6d00a62f986db3e
Author: Christoph Hellwig <hch@infradead.org>
    knfsd: exportfs: add exportfs.h header

commit 831441862956fffa17b9801db37e6ea1650b0f69
Author: Rafael J. Wysocki <rjw@sisk.pl>
    Freezer: make kernel threads nonfreezable by default

commit 8e1f936b73150f5095448a0fee6d4f30a1f9001d
Author: Rusty Russell <rusty@rustcorp.com.au>
    mm: clean up and kernelify shrinker registration

commit 5ffc4ef45b3b0a57872f631b4e4ceb8ace0d7496
Author: Jens Axboe <jens.axboe@oracle.com>
    sendfile: remove .sendfile from filesystems that use generic_file_sendfile()

commit 8bb7844286fb8c9fce6f65d8288aeb09d03a5e0d
Author: Rafael J. Wysocki <rjw@sisk.pl>
    Add suspend-related notifications for CPU hotplug

commit 59c51591a0ac7568824f541f57de967e88adaa07
Author: Michael Opdenacker <michael@free-electrons.com>
    Fix occurrences of "the the "

commit 0ceb331433e8aad9c5f441a965d7c681f8b9046f
Author: Dmitriy Monakhov <dmonakhov@openvz.org>
    mm: move common segment checks to separate helper function
--------
Merge of 2.6.x-xfs-melb:linux:29656b by kenmcd.

/*
 *
 *  $Id: pvrusb2-wm8775.c,v 1.12 2007/09/12 17:09:56 tes.longdrop.melbourne.sgi.com Exp $
 *
 *  Copyright (C) 2005 Mike Isely <isely@pobox.com>
 *  Copyright (C) 2004 Aurelien Alleaume <slts@free.fr>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

/*

   This source file is specifically designed to interface with the
   wm8775.

*/

#include "pvrusb2-wm8775.h"
#include "pvrusb2-i2c-cmd-v4l2.h"


#include "pvrusb2-hdw-internal.h"
#include "pvrusb2-debug.h"
#include <linux/videodev2.h>
#include <media/v4l2-common.h>
#include <linux/errno.h>
#include <linux/slab.h>

struct pvr2_v4l_wm8775 {
	struct pvr2_i2c_handler handler;
	struct pvr2_i2c_client *client;
	struct pvr2_hdw *hdw;
	unsigned long stale_mask;
};


static void set_input(struct pvr2_v4l_wm8775 *ctxt)
{
	struct v4l2_routing route;
	struct pvr2_hdw *hdw = ctxt->hdw;

	memset(&route,0,sizeof(route));

	switch(hdw->input_val) {
	case PVR2_CVAL_INPUT_RADIO:
		route.input = 1;
		break;
	default:
		/* All other cases just use the second input */
		route.input = 2;
		break;
	}
	pvr2_trace(PVR2_TRACE_CHIPS,"i2c wm8775 set_input(val=%d route=0x%x)",
		   hdw->input_val,route.input);

	pvr2_i2c_client_cmd(ctxt->client,VIDIOC_INT_S_AUDIO_ROUTING,&route);
}

static int check_input(struct pvr2_v4l_wm8775 *ctxt)
{
	struct pvr2_hdw *hdw = ctxt->hdw;
	return hdw->input_dirty != 0;
}


struct pvr2_v4l_wm8775_ops {
	void (*update)(struct pvr2_v4l_wm8775 *);
	int (*check)(struct pvr2_v4l_wm8775 *);
};


static const struct pvr2_v4l_wm8775_ops wm8775_ops[] = {
	{ .update = set_input, .check = check_input},
};


static unsigned int wm8775_describe(struct pvr2_v4l_wm8775 *ctxt,
				     char *buf,unsigned int cnt)
{
	return scnprintf(buf,cnt,"handler: pvrusb2-wm8775");
}


static void wm8775_detach(struct pvr2_v4l_wm8775 *ctxt)
{
	ctxt->client->handler = NULL;
	kfree(ctxt);
}


static int wm8775_check(struct pvr2_v4l_wm8775 *ctxt)
{
	unsigned long msk;
	unsigned int idx;

	for (idx = 0; idx < ARRAY_SIZE(wm8775_ops); idx++) {
		msk = 1 << idx;
		if (ctxt->stale_mask & msk) continue;
		if (wm8775_ops[idx].check(ctxt)) {
			ctxt->stale_mask |= msk;
		}
	}
	return ctxt->stale_mask != 0;
}


static void wm8775_update(struct pvr2_v4l_wm8775 *ctxt)
{
	unsigned long msk;
	unsigned int idx;

	for (idx = 0; idx < ARRAY_SIZE(wm8775_ops); idx++) {
		msk = 1 << idx;
		if (!(ctxt->stale_mask & msk)) continue;
		ctxt->stale_mask &= ~msk;
		wm8775_ops[idx].update(ctxt);
	}
}


static const struct pvr2_i2c_handler_functions hfuncs = {
	.detach = (void (*)(void *))wm8775_detach,
	.check = (int (*)(void *))wm8775_check,
	.update = (void (*)(void *))wm8775_update,
	.describe = (unsigned int (*)(void *,char *,unsigned int))wm8775_describe,
};


int pvr2_i2c_wm8775_setup(struct pvr2_hdw *hdw,struct pvr2_i2c_client *cp)
{
	struct pvr2_v4l_wm8775 *ctxt;

	if (cp->handler) return 0;

	ctxt = kzalloc(sizeof(*ctxt),GFP_KERNEL);
	if (!ctxt) return 0;

	ctxt->handler.func_data = ctxt;
	ctxt->handler.func_table = &hfuncs;
	ctxt->client = cp;
	ctxt->hdw = hdw;
	ctxt->stale_mask = (1 << ARRAY_SIZE(wm8775_ops)) - 1;
	cp->handler = &ctxt->handler;
	pvr2_trace(PVR2_TRACE_CHIPS,"i2c 0x%x wm8775 V4L2 handler set up",
		   cp->client->addr);
	return !0;
}




/*
  Stuff for Emacs to see, in order to encourage consistent editing style:
  *** Local Variables: ***
  *** mode: c ***
  *** fill-column: 70 ***
  *** tab-width: 8 ***
  *** c-basic-offset: 8 ***
  *** End: ***
  */