#define PREFIX t->i2c->driver->driver.name
+/*
+ * Driver modprobe parameters
+ */
+
+/* insmod options used at init time => read/only */
+static unsigned int addr;
+static unsigned int no_autodetect;
+static unsigned int show_i2c;
+
+module_param(addr, int, 0444);
+module_param(no_autodetect, int, 0444);
+module_param(show_i2c, int, 0444);
+
+/* insmod options used at runtime => read/write */
+static int tuner_debug;
+static unsigned int tv_range[2] = { 44, 958 };
+static unsigned int radio_range[2] = { 65, 108 };
+static char pal[] = "--";
+static char secam[] = "--";
+static char ntsc[] = "-";
+
+module_param_named(debug,tuner_debug, int, 0644);
+module_param_array(tv_range, int, NULL, 0644);
+module_param_array(radio_range, int, NULL, 0644);
+module_param_string(pal, pal, sizeof(pal), 0644);
+module_param_string(secam, secam, sizeof(secam), 0644);
+module_param_string(ntsc, ntsc, sizeof(ntsc), 0644);
+
+/*
+ * Static vars
+ */
+
+static struct xc5000_config xc5000_cfg;
+static LIST_HEAD(tuner_list);
+
+/*
+ * Debug macros
+ */
+
+#define tuner_warn(fmt, arg...) do { \
+ printk(KERN_WARNING "%s %d-%04x: " fmt, PREFIX, \
+ i2c_adapter_id(t->i2c->adapter), \
+ t->i2c->addr, ##arg); \
+ } while (0)
+
+#define tuner_info(fmt, arg...) do { \
+ printk(KERN_INFO "%s %d-%04x: " fmt, PREFIX, \
+ i2c_adapter_id(t->i2c->adapter), \
+ t->i2c->addr, ##arg); \
+ } while (0)
+
+#define tuner_err(fmt, arg...) do { \
+ printk(KERN_ERR "%s %d-%04x: " fmt, PREFIX, \
+ i2c_adapter_id(t->i2c->adapter), \
+ t->i2c->addr, ##arg); \
+ } while (0)
+
+#define tuner_dbg(fmt, arg...) do { \
+ if (tuner_debug) \
+ printk(KERN_DEBUG "%s %d-%04x: " fmt, PREFIX, \
+ i2c_adapter_id(t->i2c->adapter), \
+ t->i2c->addr, ##arg); \
+ } while (0)
+
+/*
+ * Internal struct used inside the driver
+ */
+
+struct tuner {
+ /* device */
+ struct dvb_frontend fe;
+ struct i2c_client *i2c;
+ struct v4l2_subdev sd;
+ struct list_head list;
+
+ /* keep track of the current settings */
+ v4l2_std_id std;
+ unsigned int tv_freq;
+ unsigned int radio_freq;
+ unsigned int audmode;
+
+ unsigned int mode;
+ unsigned int mode_mask; /* Combination of allowable modes */
+
+ unsigned int type; /* chip type id */
+ unsigned int config;
+ const char *name;
+};
+
+/*
+ * tuner attach/detach logic
+ */
+
/** This macro allows us to probe dynamically, avoiding static links */
#ifdef CONFIG_MEDIA_ATTACH
#define tuner_symbol_probe(FUNCTION, ARGS...) ({ \
}
#endif
-struct tuner {
- /* device */
- struct dvb_frontend fe;
- struct i2c_client *i2c;
- struct v4l2_subdev sd;
- struct list_head list;
-
- /* keep track of the current settings */
- v4l2_std_id std;
- unsigned int tv_freq;
- unsigned int radio_freq;
- unsigned int audmode;
-
- unsigned int mode;
- unsigned int mode_mask; /* Combination of allowable modes */
-
- unsigned int type; /* chip type id */
- unsigned int config;
- const char *name;
-};
static inline struct tuner *to_tuner(struct v4l2_subdev *sd)
{
return container_of(sd, struct tuner, sd);
}
-
-/* insmod options used at init time => read/only */
-static unsigned int addr;
-static unsigned int no_autodetect;
-static unsigned int show_i2c;
-
-/* insmod options used at runtime => read/write */
-static int tuner_debug;
-
-#define tuner_warn(fmt, arg...) do { \
- printk(KERN_WARNING "%s %d-%04x: " fmt, PREFIX, \
- i2c_adapter_id(t->i2c->adapter), \
- t->i2c->addr, ##arg); \
- } while (0)
-
-#define tuner_info(fmt, arg...) do { \
- printk(KERN_INFO "%s %d-%04x: " fmt, PREFIX, \
- i2c_adapter_id(t->i2c->adapter), \
- t->i2c->addr, ##arg); \
- } while (0)
-
-#define tuner_err(fmt, arg...) do { \
- printk(KERN_ERR "%s %d-%04x: " fmt, PREFIX, \
- i2c_adapter_id(t->i2c->adapter), \
- t->i2c->addr, ##arg); \
- } while (0)
-
-#define tuner_dbg(fmt, arg...) do { \
- if (tuner_debug) \
- printk(KERN_DEBUG "%s %d-%04x: " fmt, PREFIX, \
- i2c_adapter_id(t->i2c->adapter), \
- t->i2c->addr, ##arg); \
- } while (0)
-
-/* ------------------------------------------------------------------------ */
-
-static unsigned int tv_range[2] = { 44, 958 };
-static unsigned int radio_range[2] = { 65, 108 };
-
-static char pal[] = "--";
-static char secam[] = "--";
-static char ntsc[] = "-";
-
-
-module_param(addr, int, 0444);
-module_param(no_autodetect, int, 0444);
-module_param(show_i2c, int, 0444);
-module_param_named(debug,tuner_debug, int, 0644);
-module_param_string(pal, pal, sizeof(pal), 0644);
-module_param_string(secam, secam, sizeof(secam), 0644);
-module_param_string(ntsc, ntsc, sizeof(ntsc), 0644);
-module_param_array(tv_range, int, NULL, 0644);
-module_param_array(radio_range, int, NULL, 0644);
-
-MODULE_DESCRIPTION("device driver for various TV and TV+FM radio tuners");
-MODULE_AUTHOR("Ralph Metzler, Gerd Knorr, Gunther Mayer");
-MODULE_LICENSE("GPL");
-
-/* ---------------------------------------------------------------------- */
+/*
+ * struct analog_demod_ops callbacks
+ */
static void fe_set_params(struct dvb_frontend *fe,
struct analog_parameters *params)
.tuner_status = tuner_status
};
-/* Set tuner frequency, freq in Units of 62.5kHz = 1/16MHz */
-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 %lu.%02lu\n",
- freq / 16, freq % 16 * 100 / 16);
- t->tv_freq = freq;
-
- analog_ops->set_params(&t->fe, ¶ms);
-}
-
-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 %lu.%02lu\n",
- freq / 16000, freq % 16000 * 100 / 16000);
- t->radio_freq = freq;
-
- analog_ops->set_params(&t->fe, ¶ms);
-}
-
-static void set_freq(struct i2c_client *c, unsigned long freq)
-{
- struct tuner *t = to_tuner(i2c_get_clientdata(c));
-
- switch (t->mode) {
- case V4L2_TUNER_RADIO:
- set_radio_freq(c, freq);
- break;
- case V4L2_TUNER_ANALOG_TV:
- case V4L2_TUNER_DIGITAL_TV:
- set_tv_freq(c, freq);
- break;
- default:
- tuner_dbg("freq set: unknown mode: 0x%04x!\n",t->mode);
- }
-}
+/*
+ * Functions that are common to both TV and radio
+ */
-static struct xc5000_config xc5000_cfg;
+static void set_tv_freq(struct i2c_client *c, unsigned int freq);
+static void set_radio_freq(struct i2c_client *c, unsigned int freq);
+static const struct v4l2_subdev_ops tuner_ops;
static void set_type(struct i2c_client *c, unsigned int type,
unsigned int new_mode_mask, unsigned int new_config,
.small_i2c = TDA18271_03_BYTE_CHUNK_INIT,
};
- if (!dvb_attach(tda18271_attach, &t->fe, t->i2c->addr,
- t->i2c->adapter, &cfg))
- goto attach_failed;
- tune_now = 0;
- break;
+ if (!dvb_attach(tda18271_attach, &t->fe, t->i2c->addr,
+ t->i2c->adapter, &cfg))
+ goto attach_failed;
+ tune_now = 0;
+ break;
+ }
+ default:
+ if (!dvb_attach(simple_tuner_attach, &t->fe,
+ t->i2c->adapter, t->i2c->addr, t->type))
+ goto attach_failed;
+
+ break;
+ }
+
+ if ((NULL == analog_ops->set_params) &&
+ (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,
+ sizeof(struct analog_demod_ops));
+
+ } else {
+ t->name = analog_ops->info.name;
+ }
+
+ tuner_dbg("type set to %s\n", t->name);
+
+ if (t->mode_mask == T_UNINITIALIZED)
+ 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)
+ set_radio_freq(c, t->radio_freq);
+ else
+ set_tv_freq(c, t->tv_freq);
+ }
+
+ tuner_dbg("%s %s I2C addr 0x%02x with type %d used for 0x%02x\n",
+ 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;
+ t->mode_mask = T_UNINITIALIZED;
+
+ return;
+}
+
+/*
+ * This function apply tuner config to tuner specified
+ * by tun_setup structure. I addr is unset, then admin status
+ * and tun addr status is more precise then current status,
+ * it's applied. Otherwise status and type are applied only to
+ * tuner with exactly the same addr.
+*/
+
+static void set_addr(struct i2c_client *c, struct tuner_setup *tun_setup)
+{
+ struct tuner *t = to_tuner(i2c_get_clientdata(c));
+
+ 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);
+}
+
+static int tuner_s_type_addr(struct v4l2_subdev *sd, struct tuner_setup *type)
+{
+ struct tuner *t = to_tuner(sd);
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+ tuner_dbg("Calling set_type_addr for type=%d, addr=0x%02x, mode=0x%02x, config=0x%02x\n",
+ type->type,
+ type->addr,
+ type->mode_mask,
+ type->config);
+
+ set_addr(client, type);
+ return 0;
+}
+
+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;
+}
+
+/* Search for existing radio and/or TV tuners on the given I2C adapter.
+ 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 & ~T_STANDBY;
+ 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 | T_DIGITAL_TV)))
+ *tv = pos;
+ }
+}
+
+/* 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->mode_mask = T_UNINITIALIZED;
+
+ 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;
+ t->mode = T_STANDBY;
+ /* Sets freq to FM range */
+ t->radio_freq = 87.5 * 16000;
+ 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 |
+ T_DIGITAL_TV;
+ t->mode = T_STANDBY;
+ 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;
+ t->mode = T_STANDBY;
+ /* Sets freq to FM range */
+ t->radio_freq = 87.5 * 16000;
+ tuner_lookup(t->i2c->adapter, &radio, &tv);
+ if (tv)
+ tv->mode_mask &= ~T_RADIO;
+
+ goto register_client;
+ }
+ break;
+ }
}
- default:
- if (!dvb_attach(simple_tuner_attach, &t->fe,
- t->i2c->adapter, t->i2c->addr, t->type))
- goto attach_failed;
- 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 | T_DIGITAL_TV;
+ if (radio == NULL)
+ t->mode_mask |= T_RADIO;
+ tuner_dbg("Setting mode_mask to 0x%02x\n", t->mode_mask);
+ t->tv_freq = 400 * 16; /* Sets freq to VHF High */
+ t->radio_freq = 87.5 * 16000; /* Sets freq to FM range */
}
- if ((NULL == analog_ops->set_params) &&
- (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,
- sizeof(struct analog_demod_ops));
+ /* Should be just before return */
+register_client:
+ tuner_info("chip found @ 0x%x (%s)\n", client->addr << 1,
+ client->adapter->name);
+ /* Sets a default mode */
+ if (t->mode_mask & T_ANALOG_TV) {
+ t->mode = V4L2_TUNER_ANALOG_TV;
+ } else if (t->mode_mask & T_RADIO) {
+ t->mode = V4L2_TUNER_RADIO;
} else {
- t->name = analog_ops->info.name;
+ t->mode = V4L2_TUNER_DIGITAL_TV;
}
+ set_type(client, t->type, t->mode_mask, t->config, t->fe.callback);
+ list_add_tail(&t->list, &tuner_list);
+ return 0;
+}
- tuner_dbg("type set to %s\n", t->name);
-
- if (t->mode_mask == T_UNINITIALIZED)
- 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)
- set_freq(c, (V4L2_TUNER_RADIO == t->mode) ?
- t->radio_freq : t->tv_freq);
-
- tuner_dbg("%s %s I2C addr 0x%02x with type %d used for 0x%02x\n",
- c->adapter->name, c->driver->driver.name, c->addr << 1, type,
- t->mode_mask);
- return;
+static int tuner_remove(struct i2c_client *client)
+{
+ struct tuner *t = to_tuner(i2c_get_clientdata(client));
-attach_failed:
- tuner_dbg("Tuner attach for type = %d failed.\n", t->type);
- t->type = TUNER_ABSENT;
- t->mode_mask = T_UNINITIALIZED;
+ v4l2_device_unregister_subdev(&t->sd);
+ tuner_detach(&t->fe);
+ t->fe.analog_demod_priv = NULL;
- return;
+ list_del(&t->list);
+ kfree(t);
+ return 0;
}
/*
- * This function apply tuner config to tuner specified
- * by tun_setup structure. I addr is unset, then admin status
- * and tun addr status is more precise then current status,
- * it's applied. Otherwise status and type are applied only to
- * tuner with exactly the same addr.
-*/
+ * Functions that are specific for TV mode
+ */
-static void set_addr(struct i2c_client *c, struct tuner_setup *tun_setup)
+/* Set tuner frequency, freq in Units of 62.5kHz = 1/16MHz */
+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;
- 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);
-}
+ struct analog_parameters params = {
+ .mode = t->mode,
+ .audmode = t->audmode,
+ .std = t->std
+ };
-static inline int check_mode(struct tuner *t, char *cmd)
-{
- if ((1 << t->mode & t->mode_mask) == 0) {
- return -EINVAL;
+ if (t->type == UNSET) {
+ tuner_warn ("tuner type not set\n");
+ return;
}
-
- switch (t->mode) {
- case V4L2_TUNER_RADIO:
- tuner_dbg("Cmd %s accepted for radio\n", cmd);
- break;
- case V4L2_TUNER_ANALOG_TV:
- tuner_dbg("Cmd %s accepted for analog TV\n", cmd);
- break;
- case V4L2_TUNER_DIGITAL_TV:
- tuner_dbg("Cmd %s accepted for digital TV\n", cmd);
- break;
+ if (NULL == analog_ops->set_params) {
+ tuner_warn ("Tuner has no way to set tv freq\n");
+ return;
}
- return 0;
+ 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;
+
+ analog_ops->set_params(&t->fe, ¶ms);
}
/* get more precise norm info from insmod option */
break;
}
}
- return 0;
+ return 0;
+}
+
+/*
+ * Functions that are specific for Radio mode
+ */
+
+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;
+
+ analog_ops->set_params(&t->fe, ¶ms);
+}
+
+/*
+ * Functions that should be broken into separate radio/TV functions
+ */
+
+static inline int check_mode(struct tuner *t, char *cmd)
+{
+ if ((1 << t->mode & t->mode_mask) == 0) {
+ return -EINVAL;
+ }
+
+ switch (t->mode) {
+ case V4L2_TUNER_RADIO:
+ tuner_dbg("Cmd %s accepted for radio\n", cmd);
+ break;
+ case V4L2_TUNER_ANALOG_TV:
+ tuner_dbg("Cmd %s accepted for analog TV\n", cmd);
+ break;
+ case V4L2_TUNER_DIGITAL_TV:
+ tuner_dbg("Cmd %s accepted for digital TV\n", cmd);
+ break;
+ }
+ return 0;
+}
+
+/*
+ * Switch tuner to other mode. If tuner support both tv and radio,
+ * set another frequency to some value (This is needed for some pal
+ * tuners to avoid locking). Otherwise, just put second tuner in
+ * standby mode.
+ */
+
+static inline int set_mode(struct i2c_client *client, struct tuner *t, int mode, char *cmd)
+{
+ struct analog_demod_ops *analog_ops = &t->fe.ops.analog_ops;
+
+ if (mode == t->mode)
+ return 0;
+
+ t->mode = mode;
+
+ if (check_mode(t, cmd) == -EINVAL) {
+ tuner_dbg("Tuner doesn't support this mode. "
+ "Putting tuner to sleep\n");
+ t->mode = T_STANDBY;
+ if (analog_ops->standby)
+ analog_ops->standby(&t->fe);
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static void set_freq(struct i2c_client *c, unsigned long freq)
+{
+ struct tuner *t = to_tuner(i2c_get_clientdata(c));
+
+ switch (t->mode) {
+ case V4L2_TUNER_RADIO:
+ set_radio_freq(c, freq);
+ break;
+ case V4L2_TUNER_ANALOG_TV:
+ case V4L2_TUNER_DIGITAL_TV:
+ set_tv_freq(c, freq);
+ break;
+ default:
+ tuner_dbg("freq set: unknown mode: 0x%04x!\n",t->mode);
+ }
}
static void tuner_status(struct dvb_frontend *fe)
analog_ops->has_signal(fe));
}
-/* ---------------------------------------------------------------------- */
-
-/*
- * Switch tuner to other mode. If tuner support both tv and radio,
- * set another frequency to some value (This is needed for some pal
- * tuners to avoid locking). Otherwise, just put second tuner in
- * standby mode.
- */
-
-static inline int set_mode(struct i2c_client *client, struct tuner *t, int mode, char *cmd)
-{
- struct analog_demod_ops *analog_ops = &t->fe.ops.analog_ops;
-
- if (mode == t->mode)
- return 0;
-
- t->mode = mode;
-
- if (check_mode(t, cmd) == -EINVAL) {
- tuner_dbg("Tuner doesn't support this mode. "
- "Putting tuner to sleep\n");
- t->mode = T_STANDBY;
- if (analog_ops->standby)
- analog_ops->standby(&t->fe);
- return -EINVAL;
- }
- return 0;
-}
-
-static int tuner_s_type_addr(struct v4l2_subdev *sd, struct tuner_setup *type)
-{
- struct tuner *t = to_tuner(sd);
- struct i2c_client *client = v4l2_get_subdevdata(sd);
-
- tuner_dbg("Calling set_type_addr for type=%d, addr=0x%02x, mode=0x%02x, config=0x%02x\n",
- type->type,
- type->addr,
- type->mode_mask,
- type->config);
-
- set_addr(client, type);
- return 0;
-}
-
-static int tuner_s_radio(struct v4l2_subdev *sd)
-{
- struct tuner *t = to_tuner(sd);
- struct i2c_client *client = v4l2_get_subdevdata(sd);
-
- if (set_mode(client, t, V4L2_TUNER_RADIO, "s_radio") == -EINVAL)
- return 0;
- if (t->radio_freq)
- set_freq(client, t->radio_freq);
- return 0;
-}
-
static int tuner_s_power(struct v4l2_subdev *sd, int on)
{
struct tuner *t = to_tuner(sd);
return 0;
}
-static int tuner_s_config(struct v4l2_subdev *sd, const struct v4l2_priv_tun_config *cfg)
+/* ---------------------------------------------------------------------- */
+
+
+static int tuner_s_radio(struct v4l2_subdev *sd)
{
struct tuner *t = to_tuner(sd);
- struct analog_demod_ops *analog_ops = &t->fe.ops.analog_ops;
-
- if (t->type != cfg->tuner)
- return 0;
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
- if (analog_ops->set_config) {
- analog_ops->set_config(&t->fe, cfg->priv);
+ if (set_mode(client, t, V4L2_TUNER_RADIO, "s_radio") == -EINVAL)
return 0;
- }
-
- tuner_dbg("Tuner frontend module has no way to set config\n");
+ if (t->radio_freq)
+ set_freq(client, t->radio_freq);
return 0;
}
.tuner = &tuner_tuner_ops,
};
-/* ---------------------------------------------------------------------- */
-
-static LIST_HEAD(tuner_list);
-
-/* Search for existing radio and/or TV tuners on the given I2C adapter.
- 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 & ~T_STANDBY;
- 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 | T_DIGITAL_TV)))
- *tv = pos;
- }
-}
-
-/* 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->mode_mask = T_UNINITIALIZED;
-
- 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;
- t->mode = T_STANDBY;
- /* Sets freq to FM range */
- t->radio_freq = 87.5 * 16000;
- 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 |
- T_DIGITAL_TV;
- t->mode = T_STANDBY;
- 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;
- t->mode = T_STANDBY;
- /* Sets freq to FM range */
- t->radio_freq = 87.5 * 16000;
- 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 | T_DIGITAL_TV;
- if (radio == NULL)
- t->mode_mask |= T_RADIO;
- tuner_dbg("Setting mode_mask to 0x%02x\n", t->mode_mask);
- t->tv_freq = 400 * 16; /* Sets freq to VHF High */
- t->radio_freq = 87.5 * 16000; /* Sets freq to FM range */
- }
-
- /* Should be just before return */
-register_client:
- tuner_info("chip found @ 0x%x (%s)\n", client->addr << 1,
- client->adapter->name);
-
- /* Sets a default mode */
- if (t->mode_mask & T_ANALOG_TV) {
- t->mode = V4L2_TUNER_ANALOG_TV;
- } else if (t->mode_mask & T_RADIO) {
- t->mode = V4L2_TUNER_RADIO;
- } else {
- t->mode = V4L2_TUNER_DIGITAL_TV;
- }
- set_type(client, t->type, t->mode_mask, t->config, t->fe.callback);
- list_add_tail(&t->list, &tuner_list);
- return 0;
-}
-
-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;
-}
-
/* ----------------------------------------------------------------------- */
/* This driver supports many devices and the idea is to let the driver
module_init(init_tuner);
module_exit(exit_tuner);
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-basic-offset: 8
- * End:
- */
+MODULE_DESCRIPTION("device driver for various TV and TV+FM radio tuners");
+MODULE_AUTHOR("Ralph Metzler, Gerd Knorr, Gunther Mayer");
+MODULE_LICENSE("GPL");
projects / linux-beck.git / commitdiff