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V4L/DVB (11061): au8522: move shared state and common functions into a separate header files 

Move the au8522 state structure, as well as exposing functions needed by the
analog side of the demodulator into a common header file.

Thanks to Michael Krufky <mkrufky@linuxtv.org> and Steven Toth
<stoth@linuxtv.org> for providing sample hardware, engineering level support,
and testing.

Signed-off-by: Devin Heitmueller <dheitmueller@linuxtv.org>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Devin Heitmueller 2009-03-11 02:59:56 -03:00 committed by Mauro Carvalho Chehab
parent f56738cd81
commit 0c44bf362f
2 changed files with 62 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
drivers/media/dvb/frontends/au8522_dig.c
View File

@ -27,22 +27,7 @@
#include <linux/delay.h>
#include "dvb_frontend.h"
#include "au8522.h"
struct au8522_state {
struct i2c_adapter *i2c;
/* configuration settings */
const struct au8522_config *config;
struct dvb_frontend frontend;
u32 current_frequency;
fe_modulation_t current_modulation;
u32 fe_status;
unsigned int led_state;
};
#include "au8522_priv.h"
static int debug;
@ -52,7 +37,7 @@ static int debug;
} while (0)
/* 16 bit registers, 8 bit values */
static int au8522_writereg(struct au8522_state *state, u16 reg, u8 data)
int au8522_writereg(struct au8522_state *state, u16 reg, u8 data)
{
int ret;
u8 buf [] = { reg >> 8, reg & 0xff, data };
@ -69,7 +54,7 @@ static int au8522_writereg(struct au8522_state *state, u16 reg, u8 data)
return (ret != 1) ? -1 : 0;
}
static u8 au8522_readreg(struct au8522_state *state, u16 reg)
u8 au8522_readreg(struct au8522_state *state, u16 reg)
{
int ret;
u8 b0 [] = { reg >> 8, reg & 0xff };
@ -528,7 +513,7 @@ static int au8522_set_frontend(struct dvb_frontend *fe,
/* Reset the demod hardware and reset all of the configuration registers
to a default state. */
static int au8522_init(struct dvb_frontend *fe)
int au8522_init(struct dvb_frontend *fe)
{
struct au8522_state *state = fe->demodulator_priv;
dprintk("%s()\n", __func__);
@ -624,7 +609,7 @@ static int au8522_led_ctrl(struct au8522_state *state, int led)
return 0;
}
static int au8522_sleep(struct dvb_frontend *fe)
int au8522_sleep(struct dvb_frontend *fe)
{
struct au8522_state *state = fe->demodulator_priv;
dprintk("%s()\n", __func__);

57
drivers/media/dvb/frontends/au8522_priv.h Normal file
View File

@ -0,0 +1,57 @@
/*
Auvitek AU8522 QAM/8VSB demodulator driver
Copyright (C) 2008 Steven Toth <stoth@linuxtv.org>
Copyright (C) 2008 Devin Heitmueller <dheitmueller@linuxtv.org>
Copyright (C) 2005-2008 Auvitek International, Ltd.
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/string.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/videodev2.h>
#include <media/v4l2-device.h>
#include <linux/i2c.h>
#include "dvb_frontend.h"
#include "au8522.h"
#include "tuner-i2c.h"
struct au8522_state {
struct i2c_adapter *i2c;
/* configuration settings */
const struct au8522_config *config;
struct dvb_frontend frontend;
u32 current_frequency;
fe_modulation_t current_modulation;
u32 fe_status;
unsigned int led_state;
};
/* These are routines shared by both the VSB/QAM demodulator and the analog
decoder */
int au8522_writereg(struct au8522_state *state, u16 reg, u8 data);
u8 au8522_readreg(struct au8522_state *state, u16 reg);
int au8522_init(struct dvb_frontend *fe);
int au8522_sleep(struct dvb_frontend *fe);