mirror of
https://github.com/torvalds/linux.git
synced 2024-12-25 04:11:49 +00:00
bcb63314e2
Drop the FSF's postal address from the source code files that typically
contain mostly the license text. Of the 628 removed instances, 578 are
outdated.
The patch has been created with the following command without manual edits:
git grep -l "675 Mass Ave\|59 Temple Place\|51 Franklin St" -- \
drivers/media/ include/media|while read i; do i=$i perl -e '
open(F,"< $ENV{i}");
$a=join("", <F>);
$a =~ s/[ \t]*\*\n.*You should.*\n.*along with.*\n.*(\n.*USA.*$)?\n//m
&& $a =~ s/(^.*)Or, (point your browser to) /$1To obtain the license, $2\n$1/m;
close(F);
open(F, "> $ENV{i}");
print F $a;
close(F);'; done
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
167 lines
4.3 KiB
C
167 lines
4.3 KiB
C
/*
|
|
* isl6421.h - driver for lnb supply and control ic ISL6421
|
|
*
|
|
* Copyright (C) 2006 Andrew de Quincey
|
|
* Copyright (C) 2006 Oliver Endriss
|
|
*
|
|
* 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.
|
|
*
|
|
* To obtain the license, point your browser to
|
|
* http://www.gnu.org/copyleft/gpl.html
|
|
*
|
|
*
|
|
* the project's page is at https://linuxtv.org
|
|
*/
|
|
#include <linux/delay.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/init.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/string.h>
|
|
#include <linux/slab.h>
|
|
|
|
#include "dvb_frontend.h"
|
|
#include "isl6421.h"
|
|
|
|
struct isl6421 {
|
|
u8 config;
|
|
u8 override_or;
|
|
u8 override_and;
|
|
struct i2c_adapter *i2c;
|
|
u8 i2c_addr;
|
|
};
|
|
|
|
static int isl6421_set_voltage(struct dvb_frontend *fe,
|
|
enum fe_sec_voltage voltage)
|
|
{
|
|
struct isl6421 *isl6421 = (struct isl6421 *) fe->sec_priv;
|
|
struct i2c_msg msg = { .addr = isl6421->i2c_addr, .flags = 0,
|
|
.buf = &isl6421->config,
|
|
.len = sizeof(isl6421->config) };
|
|
|
|
isl6421->config &= ~(ISL6421_VSEL1 | ISL6421_EN1);
|
|
|
|
switch(voltage) {
|
|
case SEC_VOLTAGE_OFF:
|
|
break;
|
|
case SEC_VOLTAGE_13:
|
|
isl6421->config |= ISL6421_EN1;
|
|
break;
|
|
case SEC_VOLTAGE_18:
|
|
isl6421->config |= (ISL6421_EN1 | ISL6421_VSEL1);
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
isl6421->config |= isl6421->override_or;
|
|
isl6421->config &= isl6421->override_and;
|
|
|
|
return (i2c_transfer(isl6421->i2c, &msg, 1) == 1) ? 0 : -EIO;
|
|
}
|
|
|
|
static int isl6421_enable_high_lnb_voltage(struct dvb_frontend *fe, long arg)
|
|
{
|
|
struct isl6421 *isl6421 = (struct isl6421 *) fe->sec_priv;
|
|
struct i2c_msg msg = { .addr = isl6421->i2c_addr, .flags = 0,
|
|
.buf = &isl6421->config,
|
|
.len = sizeof(isl6421->config) };
|
|
|
|
if (arg)
|
|
isl6421->config |= ISL6421_LLC1;
|
|
else
|
|
isl6421->config &= ~ISL6421_LLC1;
|
|
|
|
isl6421->config |= isl6421->override_or;
|
|
isl6421->config &= isl6421->override_and;
|
|
|
|
return (i2c_transfer(isl6421->i2c, &msg, 1) == 1) ? 0 : -EIO;
|
|
}
|
|
|
|
static int isl6421_set_tone(struct dvb_frontend *fe,
|
|
enum fe_sec_tone_mode tone)
|
|
{
|
|
struct isl6421 *isl6421 = (struct isl6421 *) fe->sec_priv;
|
|
struct i2c_msg msg = { .addr = isl6421->i2c_addr, .flags = 0,
|
|
.buf = &isl6421->config,
|
|
.len = sizeof(isl6421->config) };
|
|
|
|
switch (tone) {
|
|
case SEC_TONE_ON:
|
|
isl6421->config |= ISL6421_ENT1;
|
|
break;
|
|
case SEC_TONE_OFF:
|
|
isl6421->config &= ~ISL6421_ENT1;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
isl6421->config |= isl6421->override_or;
|
|
isl6421->config &= isl6421->override_and;
|
|
|
|
return (i2c_transfer(isl6421->i2c, &msg, 1) == 1) ? 0 : -EIO;
|
|
}
|
|
|
|
static void isl6421_release(struct dvb_frontend *fe)
|
|
{
|
|
/* power off */
|
|
isl6421_set_voltage(fe, SEC_VOLTAGE_OFF);
|
|
|
|
/* free */
|
|
kfree(fe->sec_priv);
|
|
fe->sec_priv = NULL;
|
|
}
|
|
|
|
struct dvb_frontend *isl6421_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, u8 i2c_addr,
|
|
u8 override_set, u8 override_clear, bool override_tone)
|
|
{
|
|
struct isl6421 *isl6421 = kmalloc(sizeof(struct isl6421), GFP_KERNEL);
|
|
if (!isl6421)
|
|
return NULL;
|
|
|
|
/* default configuration */
|
|
isl6421->config = ISL6421_ISEL1;
|
|
isl6421->i2c = i2c;
|
|
isl6421->i2c_addr = i2c_addr;
|
|
fe->sec_priv = isl6421;
|
|
|
|
/* bits which should be forced to '1' */
|
|
isl6421->override_or = override_set;
|
|
|
|
/* bits which should be forced to '0' */
|
|
isl6421->override_and = ~override_clear;
|
|
|
|
/* detect if it is present or not */
|
|
if (isl6421_set_voltage(fe, SEC_VOLTAGE_OFF)) {
|
|
kfree(isl6421);
|
|
fe->sec_priv = NULL;
|
|
return NULL;
|
|
}
|
|
|
|
/* install release callback */
|
|
fe->ops.release_sec = isl6421_release;
|
|
|
|
/* override frontend ops */
|
|
fe->ops.set_voltage = isl6421_set_voltage;
|
|
fe->ops.enable_high_lnb_voltage = isl6421_enable_high_lnb_voltage;
|
|
if (override_tone)
|
|
fe->ops.set_tone = isl6421_set_tone;
|
|
|
|
return fe;
|
|
}
|
|
EXPORT_SYMBOL(isl6421_attach);
|
|
|
|
MODULE_DESCRIPTION("Driver for lnb supply and control ic isl6421");
|
|
MODULE_AUTHOR("Andrew de Quincey & Oliver Endriss");
|
|
MODULE_LICENSE("GPL");
|