// SPDX-License-Identifier: GPL-2.0-or-later /* Driver for SAA6588 RDS decoder (c) 2005 Hans J. Koch */ #include <linux/module.h> #include <linux/kernel.h> #include <linux/i2c.h> #include <linux/types.h> #include <linux/videodev2.h> #include <linux/init.h> #include <linux/errno.h> #include <linux/slab.h> #include <linux/poll.h> #include <linux/wait.h> #include <linux/uaccess.h> #include <media/i2c/saa6588.h> #include <media/v4l2-device.h> /* insmod options */ static unsigned int debug; static unsigned int xtal; static unsigned int mmbs; static unsigned int plvl; static unsigned int bufblocks = …; module_param(debug, int, 0644); MODULE_PARM_DESC(…) …; module_param(xtal, int, 0); MODULE_PARM_DESC(…) …; module_param(mmbs, int, 0); MODULE_PARM_DESC(…) …; module_param(plvl, int, 0); MODULE_PARM_DESC(…) …; module_param(bufblocks, int, 0); MODULE_PARM_DESC(…) …; MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …; /* ---------------------------------------------------------------------- */ #define UNSET … #define PREFIX … #define dprintk … struct saa6588 { … }; static inline struct saa6588 *to_saa6588(struct v4l2_subdev *sd) { … } /* ---------------------------------------------------------------------- */ /* * SAA6588 defines */ /* Initialization and mode control byte (0w) */ /* bit 0+1 (DAC0/DAC1) */ #define cModeStandard … #define cModeFastPI … #define cModeReducedRequest … #define cModeInvalid … /* bit 2 (RBDS) */ #define cProcessingModeRDS … #define cProcessingModeRBDS … /* bit 3+4 (SYM0/SYM1) */ #define cErrCorrectionNone … #define cErrCorrection2Bits … #define cErrCorrection5Bits … #define cErrCorrectionNoneRBDS … /* bit 5 (NWSY) */ #define cSyncNormal … #define cSyncRestart … /* bit 6 (TSQD) */ #define cSigQualityDetectOFF … #define cSigQualityDetectON … /* bit 7 (SQCM) */ #define cSigQualityTriggered … #define cSigQualityContinous … /* Pause level and flywheel control byte (1w) */ /* bits 0..5 (FEB0..FEB5) */ #define cFlywheelMaxBlocksMask … #define cFlywheelDefault … /* bits 6+7 (PL0/PL1) */ #define cPauseLevel_11mV … #define cPauseLevel_17mV … #define cPauseLevel_27mV … #define cPauseLevel_43mV … /* Pause time/oscillator frequency/quality detector control byte (1w) */ /* bits 0..4 (SQS0..SQS4) */ #define cQualityDetectSensMask … #define cQualityDetectDefault … /* bit 5 (SOSC) */ #define cSelectOscFreqOFF … #define cSelectOscFreqON … /* bit 6+7 (PTF0/PTF1) */ #define cOscFreq_4332kHz … #define cOscFreq_8664kHz … #define cOscFreq_12996kHz … #define cOscFreq_17328kHz … /* ---------------------------------------------------------------------- */ static bool block_from_buf(struct saa6588 *s, unsigned char *buf) { … } static void read_from_buf(struct saa6588 *s, struct saa6588_command *a) { … } static void block_to_buf(struct saa6588 *s, unsigned char *blockbuf) { … } static void saa6588_i2c_poll(struct saa6588 *s) { … } static void saa6588_work(struct work_struct *work) { … } static void saa6588_configure(struct saa6588 *s) { … } /* ---------------------------------------------------------------------- */ static long saa6588_command(struct v4l2_subdev *sd, unsigned int cmd, void *arg) { … } static int saa6588_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt) { … } static int saa6588_s_tuner(struct v4l2_subdev *sd, const struct v4l2_tuner *vt) { … } /* ----------------------------------------------------------------------- */ static const struct v4l2_subdev_core_ops saa6588_core_ops = …; static const struct v4l2_subdev_tuner_ops saa6588_tuner_ops = …; static const struct v4l2_subdev_ops saa6588_ops = …; /* ---------------------------------------------------------------------- */ static int saa6588_probe(struct i2c_client *client) { … } static void saa6588_remove(struct i2c_client *client) { … } /* ----------------------------------------------------------------------- */ static const struct i2c_device_id saa6588_id[] = …; MODULE_DEVICE_TABLE(i2c, saa6588_id); static struct i2c_driver saa6588_driver = …; module_i2c_driver(…) …;
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