Files
cubelinux-kernel/drivers/media/dvb-frontends/drxk.h
T
Greg Kroah-Hartman 598cf27219 Linux 6.19.3
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Brett A C Sheffield <bacs@librecast.net>
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Luna Jernberg <droidbittin@gmail.com>
Tested-by: Ronald Warsow <rwarsow@gmx.de>
Tested-by: Justin M. Forbes <jforbes@fedoraproject.org>
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-02-19 16:33:27 +01:00

76 lines
2.2 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _DRXK_H_
#define _DRXK_H_
#include <linux/types.h>
#include <linux/i2c.h>
/**
* struct drxk_config - Configure the initial parameters for DRX-K
*
* @adr: I2C address of the DRX-K
* @parallel_ts: True means that the device uses parallel TS,
* Serial otherwise.
* @dynamic_clk: True means that the clock will be dynamically
* adjusted. Static clock otherwise.
* @enable_merr_cfg: Enable SIO_PDR_PERR_CFG/SIO_PDR_MVAL_CFG.
* @single_master: Device is on the single master mode
* @no_i2c_bridge: Don't switch the I2C bridge to talk with tuner
* @antenna_gpio: GPIO bit used to control the antenna
* @antenna_dvbt: GPIO bit for changing antenna to DVB-C. A value of 1
* means that 1=DVBC, 0 = DVBT. Zero means the opposite.
* @mpeg_out_clk_strength: DRXK Mpeg output clock drive strength.
* @chunk_size: maximum size for I2C messages
* @microcode_name: Name of the firmware file with the microcode
* @qam_demod_parameter_count: The number of parameters used for the command
* to set the demodulator parameters. All
* firmwares are using the 2-parameter command.
* An exception is the ``drxk_a3.mc`` firmware,
* which uses the 4-parameter command.
* A value of 0 (default) or lower indicates that
* the correct number of parameters will be
* automatically detected.
*
* On the ``*_gpio`` vars, bit 0 is UIO-1, bit 1 is UIO-2 and bit 2 is
* UIO-3.
*/
struct drxk_config {
u8 adr;
bool single_master;
bool no_i2c_bridge;
bool parallel_ts;
bool dynamic_clk;
bool enable_merr_cfg;
bool antenna_dvbt;
u16 antenna_gpio;
u8 mpeg_out_clk_strength;
int chunk_size;
const char *microcode_name;
int qam_demod_parameter_count;
};
#if IS_REACHABLE(CONFIG_DVB_DRXK)
/**
* drxk_attach - Attach a drxk demod
*
* @config: pointer to &struct drxk_config with demod configuration.
* @i2c: i2c adapter to use.
*
* return: FE pointer on success, NULL on failure.
*/
extern struct dvb_frontend *drxk_attach(const struct drxk_config *config,
struct i2c_adapter *i2c);
#else
static inline struct dvb_frontend *drxk_attach(const struct drxk_config *config,
struct i2c_adapter *i2c)
{
printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
return NULL;
}
#endif
#endif