mirror of
https://github.com/torvalds/linux.git
synced 2024-12-23 19:31:53 +00:00
9b174527e7
In the media drivers, the v4l2 core knows about all submodules and calls into them from a common function. However this cannot work if the modules that get called are loadable and the core is built-in. In that case we get drivers/built-in.o: In function `set_type': drivers/media/v4l2-core/tuner-core.c:301: undefined reference to `tea5767_attach' drivers/media/v4l2-core/tuner-core.c:307: undefined reference to `tea5761_attach' drivers/media/v4l2-core/tuner-core.c:349: undefined reference to `tda9887_attach' drivers/media/v4l2-core/tuner-core.c:405: undefined reference to `xc4000_attach' This was working previously, until the IS_ENABLED() macro was used to replace the construct like #if defined(CONFIG_DVB_CX24110) || (defined(CONFIG_DVB_CX24110_MODULE) && defined(MODULE)) with the difference that the new code no longer checks whether it is being built as a loadable module itself. To fix this, this new patch adds an 'IS_REACHABLE' macro, which evaluates true in exactly the condition that was used previously. The downside of this is that this trades an obvious link error for a more subtle runtime failure, but it is clear that the change that introduced the link error was unintentional and it seems better to revert it for now. Also, a similar change was originally created by Trent Piepho and then reverted by teh change to the IS_ENABLED macro. Ideally Kconfig would be used to avoid the case of a broken dependency, or the code restructured in a way to turn around the dependency, but either way would require much larger changes here. Fixes:7b34be71db("[media] use IS_ENABLED() macro") See-also:c5dec9fb24("V4L/DVB (4751): Fix DBV_FE_CUSTOMISE for card drivers compiled into kernel") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
119 lines
3.1 KiB
C
119 lines
3.1 KiB
C
/*
|
|
* Afatech AF9013 demodulator driver
|
|
*
|
|
* Copyright (C) 2007 Antti Palosaari <crope@iki.fi>
|
|
* Copyright (C) 2011 Antti Palosaari <crope@iki.fi>
|
|
*
|
|
* Thanks to Afatech who kindly provided information.
|
|
*
|
|
* 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.
|
|
*
|
|
*/
|
|
|
|
#ifndef AF9013_H
|
|
#define AF9013_H
|
|
|
|
#include <linux/kconfig.h>
|
|
#include <linux/dvb/frontend.h>
|
|
|
|
/* AF9013/5 GPIOs (mostly guessed)
|
|
demod#1-gpio#0 - set demod#2 i2c-addr for dual devices
|
|
demod#1-gpio#1 - xtal setting (?)
|
|
demod#1-gpio#3 - tuner#1
|
|
demod#2-gpio#0 - tuner#2
|
|
demod#2-gpio#1 - xtal setting (?)
|
|
*/
|
|
|
|
struct af9013_config {
|
|
/*
|
|
* I2C address
|
|
*/
|
|
u8 i2c_addr;
|
|
|
|
/*
|
|
* clock
|
|
* 20480000, 25000000, 28000000, 28800000
|
|
*/
|
|
u32 clock;
|
|
|
|
/*
|
|
* tuner
|
|
*/
|
|
#define AF9013_TUNER_MXL5003D 3 /* MaxLinear */
|
|
#define AF9013_TUNER_MXL5005D 13 /* MaxLinear */
|
|
#define AF9013_TUNER_MXL5005R 30 /* MaxLinear */
|
|
#define AF9013_TUNER_ENV77H11D5 129 /* Panasonic */
|
|
#define AF9013_TUNER_MT2060 130 /* Microtune */
|
|
#define AF9013_TUNER_MC44S803 133 /* Freescale */
|
|
#define AF9013_TUNER_QT1010 134 /* Quantek */
|
|
#define AF9013_TUNER_UNKNOWN 140 /* for can tuners ? */
|
|
#define AF9013_TUNER_MT2060_2 147 /* Microtune */
|
|
#define AF9013_TUNER_TDA18271 156 /* NXP */
|
|
#define AF9013_TUNER_QT1010A 162 /* Quantek */
|
|
#define AF9013_TUNER_MXL5007T 177 /* MaxLinear */
|
|
#define AF9013_TUNER_TDA18218 179 /* NXP */
|
|
u8 tuner;
|
|
|
|
/*
|
|
* IF frequency
|
|
*/
|
|
u32 if_frequency;
|
|
|
|
/*
|
|
* TS settings
|
|
*/
|
|
#define AF9013_TS_USB 0
|
|
#define AF9013_TS_PARALLEL 1
|
|
#define AF9013_TS_SERIAL 2
|
|
u8 ts_mode:2;
|
|
|
|
/*
|
|
* input spectrum inversion
|
|
*/
|
|
bool spec_inv;
|
|
|
|
/*
|
|
* firmware API version
|
|
*/
|
|
u8 api_version[4];
|
|
|
|
/*
|
|
* GPIOs
|
|
*/
|
|
#define AF9013_GPIO_ON (1 << 0)
|
|
#define AF9013_GPIO_EN (1 << 1)
|
|
#define AF9013_GPIO_O (1 << 2)
|
|
#define AF9013_GPIO_I (1 << 3)
|
|
#define AF9013_GPIO_LO (AF9013_GPIO_ON|AF9013_GPIO_EN)
|
|
#define AF9013_GPIO_HI (AF9013_GPIO_ON|AF9013_GPIO_EN|AF9013_GPIO_O)
|
|
#define AF9013_GPIO_TUNER_ON (AF9013_GPIO_ON|AF9013_GPIO_EN)
|
|
#define AF9013_GPIO_TUNER_OFF (AF9013_GPIO_ON|AF9013_GPIO_EN|AF9013_GPIO_O)
|
|
u8 gpio[4];
|
|
};
|
|
|
|
#if IS_REACHABLE(CONFIG_DVB_AF9013)
|
|
extern struct dvb_frontend *af9013_attach(const struct af9013_config *config,
|
|
struct i2c_adapter *i2c);
|
|
#else
|
|
static inline struct dvb_frontend *af9013_attach(
|
|
const struct af9013_config *config, struct i2c_adapter *i2c)
|
|
{
|
|
pr_warn("%s: driver disabled by Kconfig\n", __func__);
|
|
return NULL;
|
|
}
|
|
#endif /* CONFIG_DVB_AF9013 */
|
|
|
|
#endif /* AF9013_H */
|