/*
* cx18 ADEC audio functions
*
* Derived from cx25840-core.c
*
* Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl>
* Copyright (C) 2008 Andy Walls <awalls@md.metrocast.net>
*
* 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, or (at your option) any later version.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
#include <media/v4l2-chip-ident.h>
#include "cx18-driver.h"
#include "cx18-io.h"
#include "cx18-cards.h"
int cx18_av_write(struct cx18 *cx, u16 addr, u8 value)
{
u32 reg = 0xc40000 + (addr & ~3);
u32 mask = 0xff;
int shift = (addr & 3) * 8;
u32 x = cx18_read_reg(cx, reg);
x = (x & ~(mask << shift)) | ((u32)value << shift);
cx18_write_reg(cx, x, reg);
return 0;
}
int cx18_av_write_expect(struct cx18 *cx, u16 addr, u8 value, u8 eval, u8 mask)
{
u32 reg = 0xc40000 + (addr & ~3);
int shift = (addr & 3) * 8;
u32 x = cx18_read_reg(cx, reg);
x = (x & ~((u32)0xff << shift)) | ((u32)value 