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![Mark Brown](/assets/img/avatar_default.png)
The legacy I2C PM functions have been deprecated and warning on boot for over a year, convert the drivers still using them to dev_pm_ops. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
1343 lines
34 KiB
C
1343 lines
34 KiB
C
/*
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* i2c tv tuner chip device driver
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* core core, i.e. kernel interfaces, registering and so on
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*
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* Copyright(c) by Ralph Metzler, Gerd Knorr, Gunther Mayer
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*
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* Copyright(c) 2005-2011 by Mauro Carvalho Chehab
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* - Added support for a separate Radio tuner
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* - Major rework and cleanups at the code
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*
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* This driver supports many devices and the idea is to let the driver
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* detect which device is present. So rather than listing all supported
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* devices here, we pretend to support a single, fake device type that will
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* handle both radio and analog TV tuning.
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/string.h>
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#include <linux/timer.h>
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#include <linux/delay.h>
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#include <linux/errno.h>
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#include <linux/slab.h>
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#include <linux/poll.h>
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#include <linux/i2c.h>
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#include <linux/types.h>
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#include <linux/init.h>
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#include <linux/videodev2.h>
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#include <media/tuner.h>
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#include <media/tuner-types.h>
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#include <media/v4l2-device.h>
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#include <media/v4l2-ioctl.h>
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#include "mt20xx.h"
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#include "tda8290.h"
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#include "tea5761.h"
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#include "tea5767.h"
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#include "tuner-xc2028.h"
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#include "tuner-simple.h"
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#include "tda9887.h"
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#include "xc5000.h"
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#include "tda18271.h"
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#include "xc4000.h"
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#define UNSET (-1U)
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#define PREFIX (t->i2c->driver->driver.name)
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/*
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* Driver modprobe parameters
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*/
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/* insmod options used at init time => read/only */
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static unsigned int addr;
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static unsigned int no_autodetect;
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static unsigned int show_i2c;
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module_param(addr, int, 0444);
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module_param(no_autodetect, int, 0444);
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module_param(show_i2c, int, 0444);
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/* insmod options used at runtime => read/write */
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static int tuner_debug;
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static unsigned int tv_range[2] = { 44, 958 };
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static unsigned int radio_range[2] = { 65, 108 };
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static char pal[] = "--";
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static char secam[] = "--";
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static char ntsc[] = "-";
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module_param_named(debug, tuner_debug, int, 0644);
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module_param_array(tv_range, int, NULL, 0644);
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module_param_array(radio_range, int, NULL, 0644);
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module_param_string(pal, pal, sizeof(pal), 0644);
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module_param_string(secam, secam, sizeof(secam), 0644);
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module_param_string(ntsc, ntsc, sizeof(ntsc), 0644);
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/*
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* Static vars
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*/
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static LIST_HEAD(tuner_list);
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static const struct v4l2_subdev_ops tuner_ops;
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/*
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* Debug macros
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*/
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#define tuner_warn(fmt, arg...) do { \
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printk(KERN_WARNING "%s %d-%04x: " fmt, PREFIX, \
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i2c_adapter_id(t->i2c->adapter), \
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t->i2c->addr, ##arg); \
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} while (0)
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#define tuner_info(fmt, arg...) do { \
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printk(KERN_INFO "%s %d-%04x: " fmt, PREFIX, \
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i2c_adapter_id(t->i2c->adapter), \
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t->i2c->addr, ##arg); \
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} while (0)
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#define tuner_err(fmt, arg...) do { \
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printk(KERN_ERR "%s %d-%04x: " fmt, PREFIX, \
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i2c_adapter_id(t->i2c->adapter), \
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t->i2c->addr, ##arg); \
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} while (0)
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#define tuner_dbg(fmt, arg...) do { \
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if (tuner_debug) \
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printk(KERN_DEBUG "%s %d-%04x: " fmt, PREFIX, \
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i2c_adapter_id(t->i2c->adapter), \
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t->i2c->addr, ##arg); \
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} while (0)
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/*
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* Internal struct used inside the driver
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*/
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struct tuner {
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/* device */
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struct dvb_frontend fe;
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struct i2c_client *i2c;
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struct v4l2_subdev sd;
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struct list_head list;
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/* keep track of the current settings */
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v4l2_std_id std;
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unsigned int tv_freq;
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unsigned int radio_freq;
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unsigned int audmode;
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enum v4l2_tuner_type mode;
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unsigned int mode_mask; /* Combination of allowable modes */
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bool standby; /* Standby mode */
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unsigned int type; /* chip type id */
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unsigned int config;
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const char *name;
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};
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/*
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* Function prototypes
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*/
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static void set_tv_freq(struct i2c_client *c, unsigned int freq);
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static void set_radio_freq(struct i2c_client *c, unsigned int freq);
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/*
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* tuner attach/detach logic
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*/
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/* This macro allows us to probe dynamically, avoiding static links */
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#ifdef CONFIG_MEDIA_ATTACH
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#define tuner_symbol_probe(FUNCTION, ARGS...) ({ \
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int __r = -EINVAL; \
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typeof(&FUNCTION) __a = symbol_request(FUNCTION); \
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if (__a) { \
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__r = (int) __a(ARGS); \
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symbol_put(FUNCTION); \
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} else { \
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printk(KERN_ERR "TUNER: Unable to find " \
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"symbol "#FUNCTION"()\n"); \
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} \
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__r; \
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})
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static void tuner_detach(struct dvb_frontend *fe)
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{
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if (fe->ops.tuner_ops.release) {
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fe->ops.tuner_ops.release(fe);
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symbol_put_addr(fe->ops.tuner_ops.release);
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}
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if (fe->ops.analog_ops.release) {
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fe->ops.analog_ops.release(fe);
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symbol_put_addr(fe->ops.analog_ops.release);
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}
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}
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#else
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#define tuner_symbol_probe(FUNCTION, ARGS...) ({ \
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FUNCTION(ARGS); \
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})
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static void tuner_detach(struct dvb_frontend *fe)
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{
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if (fe->ops.tuner_ops.release)
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fe->ops.tuner_ops.release(fe);
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if (fe->ops.analog_ops.release)
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fe->ops.analog_ops.release(fe);
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}
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#endif
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static inline struct tuner *to_tuner(struct v4l2_subdev *sd)
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{
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return container_of(sd, struct tuner, sd);
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}
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/*
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* struct analog_demod_ops callbacks
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*/
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static void fe_set_params(struct dvb_frontend *fe,
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struct analog_parameters *params)
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{
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struct dvb_tuner_ops *fe_tuner_ops = &fe->ops.tuner_ops;
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struct tuner *t = fe->analog_demod_priv;
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if (NULL == fe_tuner_ops->set_analog_params) {
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tuner_warn("Tuner frontend module has no way to set freq\n");
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return;
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}
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fe_tuner_ops->set_analog_params(fe, params);
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}
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static void fe_standby(struct dvb_frontend *fe)
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{
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struct dvb_tuner_ops *fe_tuner_ops = &fe->ops.tuner_ops;
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if (fe_tuner_ops->sleep)
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fe_tuner_ops->sleep(fe);
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}
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static int fe_has_signal(struct dvb_frontend *fe)
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{
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u16 strength = 0;
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if (fe->ops.tuner_ops.get_rf_strength)
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fe->ops.tuner_ops.get_rf_strength(fe, &strength);
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return strength;
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}
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static int fe_set_config(struct dvb_frontend *fe, void *priv_cfg)
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{
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struct dvb_tuner_ops *fe_tuner_ops = &fe->ops.tuner_ops;
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struct tuner *t = fe->analog_demod_priv;
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if (fe_tuner_ops->set_config)
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return fe_tuner_ops->set_config(fe, priv_cfg);
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tuner_warn("Tuner frontend module has no way to set config\n");
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return 0;
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}
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static void tuner_status(struct dvb_frontend *fe);
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static struct analog_demod_ops tuner_analog_ops = {
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.set_params = fe_set_params,
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.standby = fe_standby,
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.has_signal = fe_has_signal,
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.set_config = fe_set_config,
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.tuner_status = tuner_status
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};
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/*
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* Functions to select between radio and TV and tuner probe/remove functions
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*/
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/**
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* set_type - Sets the tuner type for a given device
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*
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* @c: i2c_client descriptoy
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* @type: type of the tuner (e. g. tuner number)
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* @new_mode_mask: Indicates if tuner supports TV and/or Radio
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* @new_config: an optional parameter ranging from 0-255 used by
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a few tuners to adjust an internal parameter,
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like LNA mode
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* @tuner_callback: an optional function to be called when switching
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* to analog mode
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*
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* This function applys the tuner config to tuner specified
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* by tun_setup structure. It contains several per-tuner initialization "magic"
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*/
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static void set_type(struct i2c_client *c, unsigned int type,
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unsigned int new_mode_mask, unsigned int new_config,
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int (*tuner_callback) (void *dev, int component, int cmd, int arg))
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{
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struct tuner *t = to_tuner(i2c_get_clientdata(c));
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struct dvb_tuner_ops *fe_tuner_ops = &t->fe.ops.tuner_ops;
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struct analog_demod_ops *analog_ops = &t->fe.ops.analog_ops;
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unsigned char buffer[4];
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int tune_now = 1;
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if (type == UNSET || type == TUNER_ABSENT) {
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tuner_dbg("tuner 0x%02x: Tuner type absent\n", c->addr);
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return;
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}
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t->type = type;
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/* prevent invalid config values */
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t->config = new_config < 256 ? new_config : 0;
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if (tuner_callback != NULL) {
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tuner_dbg("defining GPIO callback\n");
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t->fe.callback = tuner_callback;
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}
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/* discard private data, in case set_type() was previously called */
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tuner_detach(&t->fe);
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t->fe.analog_demod_priv = NULL;
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switch (t->type) {
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case TUNER_MT2032:
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if (!dvb_attach(microtune_attach,
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&t->fe, t->i2c->adapter, t->i2c->addr))
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goto attach_failed;
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break;
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case TUNER_PHILIPS_TDA8290:
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{
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struct tda829x_config cfg = {
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.lna_cfg = t->config,
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};
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if (!dvb_attach(tda829x_attach, &t->fe, t->i2c->adapter,
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t->i2c->addr, &cfg))
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goto attach_failed;
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break;
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}
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case TUNER_TEA5767:
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if (!dvb_attach(tea5767_attach, &t->fe,
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t->i2c->adapter, t->i2c->addr))
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goto attach_failed;
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t->mode_mask = T_RADIO;
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break;
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case TUNER_TEA5761:
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if (!dvb_attach(tea5761_attach, &t->fe,
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t->i2c->adapter, t->i2c->addr))
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goto attach_failed;
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t->mode_mask = T_RADIO;
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break;
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case TUNER_PHILIPS_FMD1216ME_MK3:
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case TUNER_PHILIPS_FMD1216MEX_MK3:
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buffer[0] = 0x0b;
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buffer[1] = 0xdc;
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buffer[2] = 0x9c;
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buffer[3] = 0x60;
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i2c_master_send(c, buffer, 4);
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mdelay(1);
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buffer[2] = 0x86;
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buffer[3] = 0x54;
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i2c_master_send(c, buffer, 4);
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if (!dvb_attach(simple_tuner_attach, &t->fe,
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t->i2c->adapter, t->i2c->addr, t->type))
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goto attach_failed;
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break;
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case TUNER_PHILIPS_TD1316:
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buffer[0] = 0x0b;
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buffer[1] = 0xdc;
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buffer[2] = 0x86;
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buffer[3] = 0xa4;
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i2c_master_send(c, buffer, 4);
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if (!dvb_attach(simple_tuner_attach, &t->fe,
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t->i2c->adapter, t->i2c->addr, t->type))
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goto attach_failed;
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break;
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case TUNER_XC2028:
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{
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struct xc2028_config cfg = {
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.i2c_adap = t->i2c->adapter,
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.i2c_addr = t->i2c->addr,
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};
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if (!dvb_attach(xc2028_attach, &t->fe, &cfg))
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goto attach_failed;
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tune_now = 0;
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break;
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}
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case TUNER_TDA9887:
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if (!dvb_attach(tda9887_attach,
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&t->fe, t->i2c->adapter, t->i2c->addr))
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goto attach_failed;
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break;
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case TUNER_XC5000:
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{
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struct xc5000_config xc5000_cfg = {
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.i2c_address = t->i2c->addr,
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/* if_khz will be set at dvb_attach() */
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.if_khz = 0,
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};
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|
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if (!dvb_attach(xc5000_attach,
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&t->fe, t->i2c->adapter, &xc5000_cfg))
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goto attach_failed;
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tune_now = 0;
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break;
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}
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case TUNER_XC5000C:
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{
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struct xc5000_config xc5000c_cfg = {
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.i2c_address = t->i2c->addr,
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/* if_khz will be set at dvb_attach() */
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.if_khz = 0,
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.chip_id = XC5000C,
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};
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|
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if (!dvb_attach(xc5000_attach,
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&t->fe, t->i2c->adapter, &xc5000c_cfg))
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goto attach_failed;
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tune_now = 0;
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break;
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}
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case TUNER_NXP_TDA18271:
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{
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struct tda18271_config cfg = {
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.config = t->config,
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.small_i2c = TDA18271_03_BYTE_CHUNK_INIT,
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};
|
|
|
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if (!dvb_attach(tda18271_attach, &t->fe, t->i2c->addr,
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t->i2c->adapter, &cfg))
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goto attach_failed;
|
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tune_now = 0;
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break;
|
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}
|
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case TUNER_XC4000:
|
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{
|
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struct xc4000_config xc4000_cfg = {
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.i2c_address = t->i2c->addr,
|
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/* FIXME: the correct parameters will be set */
|
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/* only when the digital dvb_attach() occurs */
|
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.default_pm = 0,
|
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.dvb_amplitude = 0,
|
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.set_smoothedcvbs = 0,
|
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.if_khz = 0
|
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};
|
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if (!dvb_attach(xc4000_attach,
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&t->fe, t->i2c->adapter, &xc4000_cfg))
|
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goto attach_failed;
|
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tune_now = 0;
|
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break;
|
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}
|
|
default:
|
|
if (!dvb_attach(simple_tuner_attach, &t->fe,
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t->i2c->adapter, t->i2c->addr, t->type))
|
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goto attach_failed;
|
|
|
|
break;
|
|
}
|
|
|
|
if ((NULL == analog_ops->set_params) &&
|
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(fe_tuner_ops->set_analog_params)) {
|
|
|
|
t->name = fe_tuner_ops->info.name;
|
|
|
|
t->fe.analog_demod_priv = t;
|
|
memcpy(analog_ops, &tuner_analog_ops,
|
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sizeof(struct analog_demod_ops));
|
|
|
|
} else {
|
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t->name = analog_ops->info.name;
|
|
}
|
|
|
|
tuner_dbg("type set to %s\n", t->name);
|
|
|
|
t->mode_mask = new_mode_mask;
|
|
|
|
/* Some tuners require more initialization setup before use,
|
|
such as firmware download or device calibration.
|
|
trying to set a frequency here will just fail
|
|
FIXME: better to move set_freq to the tuner code. This is needed
|
|
on analog tuners for PLL to properly work
|
|
*/
|
|
if (tune_now) {
|
|
if (V4L2_TUNER_RADIO == t->mode)
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set_radio_freq(c, t->radio_freq);
|
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else
|
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set_tv_freq(c, t->tv_freq);
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}
|
|
|
|
tuner_dbg("%s %s I2C addr 0x%02x with type %d used for 0x%02x\n",
|
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c->adapter->name, c->driver->driver.name, c->addr << 1, type,
|
|
t->mode_mask);
|
|
return;
|
|
|
|
attach_failed:
|
|
tuner_dbg("Tuner attach for type = %d failed.\n", t->type);
|
|
t->type = TUNER_ABSENT;
|
|
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* tuner_s_type_addr - Sets the tuner type for a device
|
|
*
|
|
* @sd: subdev descriptor
|
|
* @tun_setup: type to be associated to a given tuner i2c address
|
|
*
|
|
* This function applys the tuner config to tuner specified
|
|
* by tun_setup structure.
|
|
* If tuner I2C address is UNSET, then it will only set the device
|
|
* if the tuner supports the mode specified in the call.
|
|
* If the address is specified, the change will be applied only if
|
|
* tuner I2C address matches.
|
|
* The call can change the tuner number and the tuner mode.
|
|
*/
|
|
static int tuner_s_type_addr(struct v4l2_subdev *sd,
|
|
struct tuner_setup *tun_setup)
|
|
{
|
|
struct tuner *t = to_tuner(sd);
|
|
struct i2c_client *c = v4l2_get_subdevdata(sd);
|
|
|
|
tuner_dbg("Calling set_type_addr for type=%d, addr=0x%02x, mode=0x%02x, config=0x%02x\n",
|
|
tun_setup->type,
|
|
tun_setup->addr,
|
|
tun_setup->mode_mask,
|
|
tun_setup->config);
|
|
|
|
if ((t->type == UNSET && ((tun_setup->addr == ADDR_UNSET) &&
|
|
(t->mode_mask & tun_setup->mode_mask))) ||
|
|
(tun_setup->addr == c->addr)) {
|
|
set_type(c, tun_setup->type, tun_setup->mode_mask,
|
|
tun_setup->config, tun_setup->tuner_callback);
|
|
} else
|
|
tuner_dbg("set addr discarded for type %i, mask %x. "
|
|
"Asked to change tuner at addr 0x%02x, with mask %x\n",
|
|
t->type, t->mode_mask,
|
|
tun_setup->addr, tun_setup->mode_mask);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* tuner_s_config - Sets tuner configuration
|
|
*
|
|
* @sd: subdev descriptor
|
|
* @cfg: tuner configuration
|
|
*
|
|
* Calls tuner set_config() private function to set some tuner-internal
|
|
* parameters
|
|
*/
|
|
static int tuner_s_config(struct v4l2_subdev *sd,
|
|
const struct v4l2_priv_tun_config *cfg)
|
|
{
|
|
struct tuner *t = to_tuner(sd);
|
|
struct analog_demod_ops *analog_ops = &t->fe.ops.analog_ops;
|
|
|
|
if (t->type != cfg->tuner)
|
|
return 0;
|
|
|
|
if (analog_ops->set_config) {
|
|
analog_ops->set_config(&t->fe, cfg->priv);
|
|
return 0;
|
|
}
|
|
|
|
tuner_dbg("Tuner frontend module has no way to set config\n");
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* tuner_lookup - Seek for tuner adapters
|
|
*
|
|
* @adap: i2c_adapter struct
|
|
* @radio: pointer to be filled if the adapter is radio
|
|
* @tv: pointer to be filled if the adapter is TV
|
|
*
|
|
* Search for existing radio and/or TV tuners on the given I2C adapter,
|
|
* discarding demod-only adapters (tda9887).
|
|
*
|
|
* Note that when this function is called from tuner_probe you can be
|
|
* certain no other devices will be added/deleted at the same time, I2C
|
|
* core protects against that.
|
|
*/
|
|
static void tuner_lookup(struct i2c_adapter *adap,
|
|
struct tuner **radio, struct tuner **tv)
|
|
{
|
|
struct tuner *pos;
|
|
|
|
*radio = NULL;
|
|
*tv = NULL;
|
|
|
|
list_for_each_entry(pos, &tuner_list, list) {
|
|
int mode_mask;
|
|
|
|
if (pos->i2c->adapter != adap ||
|
|
strcmp(pos->i2c->driver->driver.name, "tuner"))
|
|
continue;
|
|
|
|
mode_mask = pos->mode_mask;
|
|
if (*radio == NULL && mode_mask == T_RADIO)
|
|
*radio = pos;
|
|
/* Note: currently TDA9887 is the only demod-only
|
|
device. If other devices appear then we need to
|
|
make this test more general. */
|
|
else if (*tv == NULL && pos->type != TUNER_TDA9887 &&
|
|
(pos->mode_mask & T_ANALOG_TV))
|
|
*tv = pos;
|
|
}
|
|
}
|
|
|
|
/**
|
|
*tuner_probe - Probes the existing tuners on an I2C bus
|
|
*
|
|
* @client: i2c_client descriptor
|
|
* @id: not used
|
|
*
|
|
* This routine probes for tuners at the expected I2C addresses. On most
|
|
* cases, if a device answers to a given I2C address, it assumes that the
|
|
* device is a tuner. On a few cases, however, an additional logic is needed
|
|
* to double check if the device is really a tuner, or to identify the tuner
|
|
* type, like on tea5767/5761 devices.
|
|
*
|
|
* During client attach, set_type is called by adapter's attach_inform callback.
|
|
* set_type must then be completed by tuner_probe.
|
|
*/
|
|
static int tuner_probe(struct i2c_client *client,
|
|
const struct i2c_device_id *id)
|
|
{
|
|
struct tuner *t;
|
|
struct tuner *radio;
|
|
struct tuner *tv;
|
|
|
|
t = kzalloc(sizeof(struct tuner), GFP_KERNEL);
|
|
if (NULL == t)
|
|
return -ENOMEM;
|
|
v4l2_i2c_subdev_init(&t->sd, client, &tuner_ops);
|
|
t->i2c = client;
|
|
t->name = "(tuner unset)";
|
|
t->type = UNSET;
|
|
t->audmode = V4L2_TUNER_MODE_STEREO;
|
|
t->standby = 1;
|
|
t->radio_freq = 87.5 * 16000; /* Initial freq range */
|
|
t->tv_freq = 400 * 16; /* Sets freq to VHF High - needed for some PLL's to properly start */
|
|
|
|
if (show_i2c) {
|
|
unsigned char buffer[16];
|
|
int i, rc;
|
|
|
|
memset(buffer, 0, sizeof(buffer));
|
|
rc = i2c_master_recv(client, buffer, sizeof(buffer));
|
|
tuner_info("I2C RECV = ");
|
|
for (i = 0; i < rc; i++)
|
|
printk(KERN_CONT "%02x ", buffer[i]);
|
|
printk("\n");
|
|
}
|
|
|
|
/* autodetection code based on the i2c addr */
|
|
if (!no_autodetect) {
|
|
switch (client->addr) {
|
|
case 0x10:
|
|
if (tuner_symbol_probe(tea5761_autodetection,
|
|
t->i2c->adapter,
|
|
t->i2c->addr) >= 0) {
|
|
t->type = TUNER_TEA5761;
|
|
t->mode_mask = T_RADIO;
|
|
tuner_lookup(t->i2c->adapter, &radio, &tv);
|
|
if (tv)
|
|
tv->mode_mask &= ~T_RADIO;
|
|
|
|
goto register_client;
|
|
}
|
|
kfree(t);
|
|
return -ENODEV;
|
|
case 0x42:
|
|
case 0x43:
|
|
case 0x4a:
|
|
case 0x4b:
|
|
/* If chip is not tda8290, don't register.
|
|
since it can be tda9887*/
|
|
if (tuner_symbol_probe(tda829x_probe, t->i2c->adapter,
|
|
t->i2c->addr) >= 0) {
|
|
tuner_dbg("tda829x detected\n");
|
|
} else {
|
|
/* Default is being tda9887 */
|
|
t->type = TUNER_TDA9887;
|
|
t->mode_mask = T_RADIO | T_ANALOG_TV;
|
|
goto register_client;
|
|
}
|
|
break;
|
|
case 0x60:
|
|
if (tuner_symbol_probe(tea5767_autodetection,
|
|
t->i2c->adapter, t->i2c->addr)
|
|
>= 0) {
|
|
t->type = TUNER_TEA5767;
|
|
t->mode_mask = T_RADIO;
|
|
/* Sets freq to FM range */
|
|
tuner_lookup(t->i2c->adapter, &radio, &tv);
|
|
if (tv)
|
|
tv->mode_mask &= ~T_RADIO;
|
|
|
|
goto register_client;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Initializes only the first TV tuner on this adapter. Why only the
|
|
first? Because there are some devices (notably the ones with TI
|
|
tuners) that have more than one i2c address for the *same* device.
|
|
Experience shows that, except for just one case, the first
|
|
address is the right one. The exception is a Russian tuner
|
|
(ACORP_Y878F). So, the desired behavior is just to enable the
|
|
first found TV tuner. */
|
|
tuner_lookup(t->i2c->adapter, &radio, &tv);
|
|
if (tv == NULL) {
|
|
t->mode_mask = T_ANALOG_TV;
|
|
if (radio == NULL)
|
|
t->mode_mask |= T_RADIO;
|
|
tuner_dbg("Setting mode_mask to 0x%02x\n", t->mode_mask);
|
|
}
|
|
|
|
/* Should be just before return */
|
|
register_client:
|
|
/* Sets a default mode */
|
|
if (t->mode_mask & T_ANALOG_TV)
|
|
t->mode = V4L2_TUNER_ANALOG_TV;
|
|
else
|
|
t->mode = V4L2_TUNER_RADIO;
|
|
set_type(client, t->type, t->mode_mask, t->config, t->fe.callback);
|
|
list_add_tail(&t->list, &tuner_list);
|
|
|
|
tuner_info("Tuner %d found with type(s)%s%s.\n",
|
|
t->type,
|
|
t->mode_mask & T_RADIO ? " Radio" : "",
|
|
t->mode_mask & T_ANALOG_TV ? " TV" : "");
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* tuner_remove - detaches a tuner
|
|
*
|
|
* @client: i2c_client descriptor
|
|
*/
|
|
|
|
static int tuner_remove(struct i2c_client *client)
|
|
{
|
|
struct tuner *t = to_tuner(i2c_get_clientdata(client));
|
|
|
|
v4l2_device_unregister_subdev(&t->sd);
|
|
tuner_detach(&t->fe);
|
|
t->fe.analog_demod_priv = NULL;
|
|
|
|
list_del(&t->list);
|
|
kfree(t);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Functions to switch between Radio and TV
|
|
*
|
|
* A few cards have a separate I2C tuner for radio. Those routines
|
|
* take care of switching between TV/Radio mode, filtering only the
|
|
* commands that apply to the Radio or TV tuner.
|
|
*/
|
|
|
|
/**
|
|
* check_mode - Verify if tuner supports the requested mode
|
|
* @t: a pointer to the module's internal struct_tuner
|
|
*
|
|
* This function checks if the tuner is capable of tuning analog TV,
|
|
* digital TV or radio, depending on what the caller wants. If the
|
|
* tuner can't support that mode, it returns -EINVAL. Otherwise, it
|
|
* returns 0.
|
|
* This function is needed for boards that have a separate tuner for
|
|
* radio (like devices with tea5767).
|
|
* NOTE: mt20xx uses V4L2_TUNER_DIGITAL_TV and calls set_tv_freq to
|
|
* select a TV frequency. So, t_mode = T_ANALOG_TV could actually
|
|
* be used to represent a Digital TV too.
|
|
*/
|
|
static inline int check_mode(struct tuner *t, enum v4l2_tuner_type mode)
|
|
{
|
|
int t_mode;
|
|
if (mode == V4L2_TUNER_RADIO)
|
|
t_mode = T_RADIO;
|
|
else
|
|
t_mode = T_ANALOG_TV;
|
|
|
|
if ((t_mode & t->mode_mask) == 0)
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* set_mode - Switch tuner to other mode.
|
|
* @t: a pointer to the module's internal struct_tuner
|
|
* @mode: enum v4l2_type (radio or TV)
|
|
*
|
|
* If tuner doesn't support the needed mode (radio or TV), prints a
|
|
* debug message and returns -EINVAL, changing its state to standby.
|
|
* Otherwise, changes the mode and returns 0.
|
|
*/
|
|
static int set_mode(struct tuner *t, enum v4l2_tuner_type mode)
|
|
{
|
|
struct analog_demod_ops *analog_ops = &t->fe.ops.analog_ops;
|
|
|
|
if (mode != t->mode) {
|
|
if (check_mode(t, mode) == -EINVAL) {
|
|
tuner_dbg("Tuner doesn't support mode %d. "
|
|
"Putting tuner to sleep\n", mode);
|
|
t->standby = true;
|
|
if (analog_ops->standby)
|
|
analog_ops->standby(&t->fe);
|
|
return -EINVAL;
|
|
}
|
|
t->mode = mode;
|
|
tuner_dbg("Changing to mode %d\n", mode);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* set_freq - Set the tuner to the desired frequency.
|
|
* @t: a pointer to the module's internal struct_tuner
|
|
* @freq: frequency to set (0 means to use the current frequency)
|
|
*/
|
|
static void set_freq(struct tuner *t, unsigned int freq)
|
|
{
|
|
struct i2c_client *client = v4l2_get_subdevdata(&t->sd);
|
|
|
|
if (t->mode == V4L2_TUNER_RADIO) {
|
|
if (!freq)
|
|
freq = t->radio_freq;
|
|
set_radio_freq(client, freq);
|
|
} else {
|
|
if (!freq)
|
|
freq = t->tv_freq;
|
|
set_tv_freq(client, freq);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Functions that are specific for TV mode
|
|
*/
|
|
|
|
/**
|
|
* set_tv_freq - Set tuner frequency, freq in Units of 62.5 kHz = 1/16MHz
|
|
*
|
|
* @c: i2c_client descriptor
|
|
* @freq: frequency
|
|
*/
|
|
static void set_tv_freq(struct i2c_client *c, unsigned int freq)
|
|
{
|
|
struct tuner *t = to_tuner(i2c_get_clientdata(c));
|
|
struct analog_demod_ops *analog_ops = &t->fe.ops.analog_ops;
|
|
|
|
struct analog_parameters params = {
|
|
.mode = t->mode,
|
|
.audmode = t->audmode,
|
|
.std = t->std
|
|
};
|
|
|
|
if (t->type == UNSET) {
|
|
tuner_warn("tuner type not set\n");
|
|
return;
|
|
}
|
|
if (NULL == analog_ops->set_params) {
|
|
tuner_warn("Tuner has no way to set tv freq\n");
|
|
return;
|
|
}
|
|
if (freq < tv_range[0] * 16 || freq > tv_range[1] * 16) {
|
|
tuner_dbg("TV freq (%d.%02d) out of range (%d-%d)\n",
|
|
freq / 16, freq % 16 * 100 / 16, tv_range[0],
|
|
tv_range[1]);
|
|
/* V4L2 spec: if the freq is not possible then the closest
|
|
possible value should be selected */
|
|
if (freq < tv_range[0] * 16)
|
|
freq = tv_range[0] * 16;
|
|
else
|
|
freq = tv_range[1] * 16;
|
|
}
|
|
params.frequency = freq;
|
|
tuner_dbg("tv freq set to %d.%02d\n",
|
|
freq / 16, freq % 16 * 100 / 16);
|
|
t->tv_freq = freq;
|
|
t->standby = false;
|
|
|
|
analog_ops->set_params(&t->fe, ¶ms);
|
|
}
|
|
|
|
/**
|
|
* tuner_fixup_std - force a given video standard variant
|
|
*
|
|
* @t: tuner internal struct
|
|
* @std: TV standard
|
|
*
|
|
* A few devices or drivers have problem to detect some standard variations.
|
|
* On other operational systems, the drivers generally have a per-country
|
|
* code, and some logic to apply per-country hacks. V4L2 API doesn't provide
|
|
* such hacks. Instead, it relies on a proper video standard selection from
|
|
* the userspace application. However, as some apps are buggy, not allowing
|
|
* to distinguish all video standard variations, a modprobe parameter can
|
|
* be used to force a video standard match.
|
|
*/
|
|
static v4l2_std_id tuner_fixup_std(struct tuner *t, v4l2_std_id std)
|
|
{
|
|
if (pal[0] != '-' && (std & V4L2_STD_PAL) == V4L2_STD_PAL) {
|
|
switch (pal[0]) {
|
|
case '6':
|
|
return V4L2_STD_PAL_60;
|
|
case 'b':
|
|
case 'B':
|
|
case 'g':
|
|
case 'G':
|
|
return V4L2_STD_PAL_BG;
|
|
case 'i':
|
|
case 'I':
|
|
return V4L2_STD_PAL_I;
|
|
case 'd':
|
|
case 'D':
|
|
case 'k':
|
|
case 'K':
|
|
return V4L2_STD_PAL_DK;
|
|
case 'M':
|
|
case 'm':
|
|
return V4L2_STD_PAL_M;
|
|
case 'N':
|
|
case 'n':
|
|
if (pal[1] == 'c' || pal[1] == 'C')
|
|
return V4L2_STD_PAL_Nc;
|
|
return V4L2_STD_PAL_N;
|
|
default:
|
|
tuner_warn("pal= argument not recognised\n");
|
|
break;
|
|
}
|
|
}
|
|
if (secam[0] != '-' && (std & V4L2_STD_SECAM) == V4L2_STD_SECAM) {
|
|
switch (secam[0]) {
|
|
case 'b':
|
|
case 'B':
|
|
case 'g':
|
|
case 'G':
|
|
case 'h':
|
|
case 'H':
|
|
return V4L2_STD_SECAM_B |
|
|
V4L2_STD_SECAM_G |
|
|
V4L2_STD_SECAM_H;
|
|
case 'd':
|
|
case 'D':
|
|
case 'k':
|
|
case 'K':
|
|
return V4L2_STD_SECAM_DK;
|
|
case 'l':
|
|
case 'L':
|
|
if ((secam[1] == 'C') || (secam[1] == 'c'))
|
|
return V4L2_STD_SECAM_LC;
|
|
return V4L2_STD_SECAM_L;
|
|
default:
|
|
tuner_warn("secam= argument not recognised\n");
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (ntsc[0] != '-' && (std & V4L2_STD_NTSC) == V4L2_STD_NTSC) {
|
|
switch (ntsc[0]) {
|
|
case 'm':
|
|
case 'M':
|
|
return V4L2_STD_NTSC_M;
|
|
case 'j':
|
|
case 'J':
|
|
return V4L2_STD_NTSC_M_JP;
|
|
case 'k':
|
|
case 'K':
|
|
return V4L2_STD_NTSC_M_KR;
|
|
default:
|
|
tuner_info("ntsc= argument not recognised\n");
|
|
break;
|
|
}
|
|
}
|
|
return std;
|
|
}
|
|
|
|
/*
|
|
* Functions that are specific for Radio mode
|
|
*/
|
|
|
|
/**
|
|
* set_radio_freq - Set tuner frequency, freq in Units of 62.5 Hz = 1/16kHz
|
|
*
|
|
* @c: i2c_client descriptor
|
|
* @freq: frequency
|
|
*/
|
|
static void set_radio_freq(struct i2c_client *c, unsigned int freq)
|
|
{
|
|
struct tuner *t = to_tuner(i2c_get_clientdata(c));
|
|
struct analog_demod_ops *analog_ops = &t->fe.ops.analog_ops;
|
|
|
|
struct analog_parameters params = {
|
|
.mode = t->mode,
|
|
.audmode = t->audmode,
|
|
.std = t->std
|
|
};
|
|
|
|
if (t->type == UNSET) {
|
|
tuner_warn("tuner type not set\n");
|
|
return;
|
|
}
|
|
if (NULL == analog_ops->set_params) {
|
|
tuner_warn("tuner has no way to set radio frequency\n");
|
|
return;
|
|
}
|
|
if (freq < radio_range[0] * 16000 || freq > radio_range[1] * 16000) {
|
|
tuner_dbg("radio freq (%d.%02d) out of range (%d-%d)\n",
|
|
freq / 16000, freq % 16000 * 100 / 16000,
|
|
radio_range[0], radio_range[1]);
|
|
/* V4L2 spec: if the freq is not possible then the closest
|
|
possible value should be selected */
|
|
if (freq < radio_range[0] * 16000)
|
|
freq = radio_range[0] * 16000;
|
|
else
|
|
freq = radio_range[1] * 16000;
|
|
}
|
|
params.frequency = freq;
|
|
tuner_dbg("radio freq set to %d.%02d\n",
|
|
freq / 16000, freq % 16000 * 100 / 16000);
|
|
t->radio_freq = freq;
|
|
t->standby = false;
|
|
|
|
analog_ops->set_params(&t->fe, ¶ms);
|
|
}
|
|
|
|
/*
|
|
* Debug function for reporting tuner status to userspace
|
|
*/
|
|
|
|
/**
|
|
* tuner_status - Dumps the current tuner status at dmesg
|
|
* @fe: pointer to struct dvb_frontend
|
|
*
|
|
* This callback is used only for driver debug purposes, answering to
|
|
* VIDIOC_LOG_STATUS. No changes should happen on this call.
|
|
*/
|
|
static void tuner_status(struct dvb_frontend *fe)
|
|
{
|
|
struct tuner *t = fe->analog_demod_priv;
|
|
unsigned long freq, freq_fraction;
|
|
struct dvb_tuner_ops *fe_tuner_ops = &fe->ops.tuner_ops;
|
|
struct analog_demod_ops *analog_ops = &fe->ops.analog_ops;
|
|
const char *p;
|
|
|
|
switch (t->mode) {
|
|
case V4L2_TUNER_RADIO:
|
|
p = "radio";
|
|
break;
|
|
case V4L2_TUNER_DIGITAL_TV: /* Used by mt20xx */
|
|
p = "digital TV";
|
|
break;
|
|
case V4L2_TUNER_ANALOG_TV:
|
|
default:
|
|
p = "analog TV";
|
|
break;
|
|
}
|
|
if (t->mode == V4L2_TUNER_RADIO) {
|
|
freq = t->radio_freq / 16000;
|
|
freq_fraction = (t->radio_freq % 16000) * 100 / 16000;
|
|
} else {
|
|
freq = t->tv_freq / 16;
|
|
freq_fraction = (t->tv_freq % 16) * 100 / 16;
|
|
}
|
|
tuner_info("Tuner mode: %s%s\n", p,
|
|
t->standby ? " on standby mode" : "");
|
|
tuner_info("Frequency: %lu.%02lu MHz\n", freq, freq_fraction);
|
|
tuner_info("Standard: 0x%08lx\n", (unsigned long)t->std);
|
|
if (t->mode != V4L2_TUNER_RADIO)
|
|
return;
|
|
if (fe_tuner_ops->get_status) {
|
|
u32 tuner_status;
|
|
|
|
fe_tuner_ops->get_status(&t->fe, &tuner_status);
|
|
if (tuner_status & TUNER_STATUS_LOCKED)
|
|
tuner_info("Tuner is locked.\n");
|
|
if (tuner_status & TUNER_STATUS_STEREO)
|
|
tuner_info("Stereo: yes\n");
|
|
}
|
|
if (analog_ops->has_signal)
|
|
tuner_info("Signal strength: %d\n",
|
|
analog_ops->has_signal(fe));
|
|
}
|
|
|
|
/*
|
|
* Function to splicitly change mode to radio. Probably not needed anymore
|
|
*/
|
|
|
|
static int tuner_s_radio(struct v4l2_subdev *sd)
|
|
{
|
|
struct tuner *t = to_tuner(sd);
|
|
|
|
if (set_mode(t, V4L2_TUNER_RADIO) == 0)
|
|
set_freq(t, 0);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Tuner callbacks to handle userspace ioctl's
|
|
*/
|
|
|
|
/**
|
|
* tuner_s_power - controls the power state of the tuner
|
|
* @sd: pointer to struct v4l2_subdev
|
|
* @on: a zero value puts the tuner to sleep, non-zero wakes it up
|
|
*/
|
|
static int tuner_s_power(struct v4l2_subdev *sd, int on)
|
|
{
|
|
struct tuner *t = to_tuner(sd);
|
|
struct analog_demod_ops *analog_ops = &t->fe.ops.analog_ops;
|
|
|
|
if (on) {
|
|
if (t->standby && set_mode(t, t->mode) == 0) {
|
|
tuner_dbg("Waking up tuner\n");
|
|
set_freq(t, 0);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
tuner_dbg("Putting tuner to sleep\n");
|
|
t->standby = true;
|
|
if (analog_ops->standby)
|
|
analog_ops->standby(&t->fe);
|
|
return 0;
|
|
}
|
|
|
|
static int tuner_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
|
|
{
|
|
struct tuner *t = to_tuner(sd);
|
|
|
|
if (set_mode(t, V4L2_TUNER_ANALOG_TV))
|
|
return 0;
|
|
|
|
t->std = tuner_fixup_std(t, std);
|
|
if (t->std != std)
|
|
tuner_dbg("Fixup standard %llx to %llx\n", std, t->std);
|
|
set_freq(t, 0);
|
|
return 0;
|
|
}
|
|
|
|
static int tuner_s_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *f)
|
|
{
|
|
struct tuner *t = to_tuner(sd);
|
|
|
|
if (set_mode(t, f->type) == 0)
|
|
set_freq(t, f->frequency);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* tuner_g_frequency - Get the tuned frequency for the tuner
|
|
* @sd: pointer to struct v4l2_subdev
|
|
* @f: pointer to struct v4l2_frequency
|
|
*
|
|
* At return, the structure f will be filled with tuner frequency
|
|
* if the tuner matches the f->type.
|
|
* Note: f->type should be initialized before calling it.
|
|
* This is done by either video_ioctl2 or by the bridge driver.
|
|
*/
|
|
static int tuner_g_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *f)
|
|
{
|
|
struct tuner *t = to_tuner(sd);
|
|
struct dvb_tuner_ops *fe_tuner_ops = &t->fe.ops.tuner_ops;
|
|
|
|
if (check_mode(t, f->type) == -EINVAL)
|
|
return 0;
|
|
if (f->type == t->mode && fe_tuner_ops->get_frequency && !t->standby) {
|
|
u32 abs_freq;
|
|
|
|
fe_tuner_ops->get_frequency(&t->fe, &abs_freq);
|
|
f->frequency = (V4L2_TUNER_RADIO == t->mode) ?
|
|
DIV_ROUND_CLOSEST(abs_freq * 2, 125) :
|
|
DIV_ROUND_CLOSEST(abs_freq, 62500);
|
|
} else {
|
|
f->frequency = (V4L2_TUNER_RADIO == f->type) ?
|
|
t->radio_freq : t->tv_freq;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* tuner_g_tuner - Fill in tuner information
|
|
* @sd: pointer to struct v4l2_subdev
|
|
* @vt: pointer to struct v4l2_tuner
|
|
*
|
|
* At return, the structure vt will be filled with tuner information
|
|
* if the tuner matches vt->type.
|
|
* Note: vt->type should be initialized before calling it.
|
|
* This is done by either video_ioctl2 or by the bridge driver.
|
|
*/
|
|
static int tuner_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
|
|
{
|
|
struct tuner *t = to_tuner(sd);
|
|
struct analog_demod_ops *analog_ops = &t->fe.ops.analog_ops;
|
|
struct dvb_tuner_ops *fe_tuner_ops = &t->fe.ops.tuner_ops;
|
|
|
|
if (check_mode(t, vt->type) == -EINVAL)
|
|
return 0;
|
|
if (vt->type == t->mode && analog_ops->get_afc)
|
|
vt->afc = analog_ops->get_afc(&t->fe);
|
|
if (t->mode != V4L2_TUNER_RADIO) {
|
|
vt->capability |= V4L2_TUNER_CAP_NORM;
|
|
vt->rangelow = tv_range[0] * 16;
|
|
vt->rangehigh = tv_range[1] * 16;
|
|
return 0;
|
|
}
|
|
|
|
/* radio mode */
|
|
if (vt->type == t->mode) {
|
|
vt->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
|
|
if (fe_tuner_ops->get_status) {
|
|
u32 tuner_status;
|
|
|
|
fe_tuner_ops->get_status(&t->fe, &tuner_status);
|
|
vt->rxsubchans =
|
|
(tuner_status & TUNER_STATUS_STEREO) ?
|
|
V4L2_TUNER_SUB_STEREO :
|
|
V4L2_TUNER_SUB_MONO;
|
|
}
|
|
if (analog_ops->has_signal)
|
|
vt->signal = analog_ops->has_signal(&t->fe);
|
|
vt->audmode = t->audmode;
|
|
}
|
|
vt->capability |= V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO;
|
|
vt->rangelow = radio_range[0] * 16000;
|
|
vt->rangehigh = radio_range[1] * 16000;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* tuner_s_tuner - Set the tuner's audio mode
|
|
* @sd: pointer to struct v4l2_subdev
|
|
* @vt: pointer to struct v4l2_tuner
|
|
*
|
|
* Sets the audio mode if the tuner matches vt->type.
|
|
* Note: vt->type should be initialized before calling it.
|
|
* This is done by either video_ioctl2 or by the bridge driver.
|
|
*/
|
|
static int tuner_s_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
|
|
{
|
|
struct tuner *t = to_tuner(sd);
|
|
|
|
if (set_mode(t, vt->type))
|
|
return 0;
|
|
|
|
if (t->mode == V4L2_TUNER_RADIO)
|
|
t->audmode = vt->audmode;
|
|
set_freq(t, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tuner_log_status(struct v4l2_subdev *sd)
|
|
{
|
|
struct tuner *t = to_tuner(sd);
|
|
struct analog_demod_ops *analog_ops = &t->fe.ops.analog_ops;
|
|
|
|
if (analog_ops->tuner_status)
|
|
analog_ops->tuner_status(&t->fe);
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_PM_SLEEP
|
|
static int tuner_suspend(struct device *dev)
|
|
{
|
|
struct i2c_client *c = to_i2c_client(dev);
|
|
struct tuner *t = to_tuner(i2c_get_clientdata(c));
|
|
struct analog_demod_ops *analog_ops = &t->fe.ops.analog_ops;
|
|
|
|
tuner_dbg("suspend\n");
|
|
|
|
if (!t->standby && analog_ops->standby)
|
|
analog_ops->standby(&t->fe);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tuner_resume(struct device *dev)
|
|
{
|
|
struct i2c_client *c = to_i2c_client(dev);
|
|
struct tuner *t = to_tuner(i2c_get_clientdata(c));
|
|
|
|
tuner_dbg("resume\n");
|
|
|
|
if (!t->standby)
|
|
if (set_mode(t, t->mode) == 0)
|
|
set_freq(t, 0);
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
static int tuner_command(struct i2c_client *client, unsigned cmd, void *arg)
|
|
{
|
|
struct v4l2_subdev *sd = i2c_get_clientdata(client);
|
|
|
|
/* TUNER_SET_CONFIG is still called by tuner-simple.c, so we have
|
|
to handle it here.
|
|
There must be a better way of doing this... */
|
|
switch (cmd) {
|
|
case TUNER_SET_CONFIG:
|
|
return tuner_s_config(sd, arg);
|
|
}
|
|
return -ENOIOCTLCMD;
|
|
}
|
|
|
|
/*
|
|
* Callback structs
|
|
*/
|
|
|
|
static const struct v4l2_subdev_core_ops tuner_core_ops = {
|
|
.log_status = tuner_log_status,
|
|
.s_std = tuner_s_std,
|
|
.s_power = tuner_s_power,
|
|
};
|
|
|
|
static const struct v4l2_subdev_tuner_ops tuner_tuner_ops = {
|
|
.s_radio = tuner_s_radio,
|
|
.g_tuner = tuner_g_tuner,
|
|
.s_tuner = tuner_s_tuner,
|
|
.s_frequency = tuner_s_frequency,
|
|
.g_frequency = tuner_g_frequency,
|
|
.s_type_addr = tuner_s_type_addr,
|
|
.s_config = tuner_s_config,
|
|
};
|
|
|
|
static const struct v4l2_subdev_ops tuner_ops = {
|
|
.core = &tuner_core_ops,
|
|
.tuner = &tuner_tuner_ops,
|
|
};
|
|
|
|
/*
|
|
* I2C structs and module init functions
|
|
*/
|
|
|
|
static const struct dev_pm_ops tuner_pm_ops = {
|
|
SET_SYSTEM_SLEEP_PM_OPS(tuner_suspend, tuner_resume)
|
|
};
|
|
|
|
static const struct i2c_device_id tuner_id[] = {
|
|
{ "tuner", }, /* autodetect */
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(i2c, tuner_id);
|
|
|
|
static struct i2c_driver tuner_driver = {
|
|
.driver = {
|
|
.owner = THIS_MODULE,
|
|
.name = "tuner",
|
|
.pm = &tuner_pm_ops,
|
|
},
|
|
.probe = tuner_probe,
|
|
.remove = tuner_remove,
|
|
.command = tuner_command,
|
|
.id_table = tuner_id,
|
|
};
|
|
|
|
module_i2c_driver(tuner_driver);
|
|
|
|
MODULE_DESCRIPTION("device driver for various TV and TV+FM radio tuners");
|
|
MODULE_AUTHOR("Ralph Metzler, Gerd Knorr, Gunther Mayer");
|
|
MODULE_LICENSE("GPL");
|