// SPDX-License-Identifier: GPL-2.0-or-later
/*
* 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>
*/
#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 << shift);
cx18_write_reg_expect(cx, x, reg,
((u32)eval << shift), ((u32)mask << shift));
return 0;
}
int cx18_av_write4(struct cx18 *cx, u16 addr, u32 value)
{
cx18_write_reg(cx, value, 0xc40000 + addr);
return 0;
}
int
cx18_av_write4_expect(struct cx18 *cx, u16 addr<