OpenCloudOS-Kernel/drivers/media/dvb-frontends/af9013.h

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/*
* 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.
*
*/
#ifndef AF9013_H
#define AF9013_H
#include <linux/dvb/frontend.h>
/*
* I2C address: 0x1c, 0x1d
*/
/**
* struct af9013_platform_data - Platform data for the af9013 driver
* @clk: Clock frequency.
* @tuner: Used tuner model.
* @if_frequency: IF frequency.
* @ts_mode: TS mode.
* @ts_output_pin: TS output pin.
* @spec_inv: Input spectrum inverted.
* @api_version: Firmware API version.
* @gpio: GPIOs.
* @get_dvb_frontend: Get DVB frontend callback.
*
* 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_platform_data {
/*
* 20480000, 25000000, 28000000, 28800000
*/
u32 clk;
#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;
u32 if_frequency;
#define AF9013_TS_MODE_USB 0
#define AF9013_TS_MODE_PARALLEL 1
#define AF9013_TS_MODE_SERIAL 2
u8 ts_mode;
u8 ts_output_pin;
bool spec_inv;
u8 api_version[4];
#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];
struct dvb_frontend* (*get_dvb_frontend)(struct i2c_client *);
/* private: For legacy media attach wrapper. Do not set value. */
bool attach_in_use;
u8 i2c_addr;
u32 clock;
};
#define af9013_config af9013_platform_data
#define AF9013_TS_USB AF9013_TS_MODE_USB
#define AF9013_TS_PARALLEL AF9013_TS_MODE_PARALLEL
#define AF9013_TS_SERIAL AF9013_TS_MODE_SERIAL
[media] Add and use IS_REACHABLE macro 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: 7b34be71db53 ("[media] use IS_ENABLED() macro") See-also: c5dec9fb248e ("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>
2015-02-19 01:12:42 +08:00
#if IS_REACHABLE(CONFIG_DVB_AF9013)
/**
* Attach an af9013 demod
*
* @config: pointer to &struct af9013_config with demod configuration.
* @i2c: i2c adapter to use.
*
* return: FE pointer on success, NULL on failure.
*/
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 */