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-rw-r--r--drivers/media/tuners/fc2580.c262
-rw-r--r--drivers/media/tuners/fc2580.h5
-rw-r--r--drivers/media/tuners/fc2580_priv.h11
3 files changed, 249 insertions, 29 deletions
diff --git a/drivers/media/tuners/fc2580.c b/drivers/media/tuners/fc2580.c
index 30cee76b5f37..db21902b6e63 100644
--- a/drivers/media/tuners/fc2580.c
+++ b/drivers/media/tuners/fc2580.c
@@ -38,20 +38,19 @@ static int fc2580_wr_reg_ff(struct fc2580_dev *dev, u8 reg, u8 val)
return regmap_write(dev->regmap, reg, val);
}
-static int fc2580_set_params(struct dvb_frontend *fe)
+static int fc2580_set_params(struct fc2580_dev *dev)
{
- struct fc2580_dev *dev = fe->tuner_priv;
struct i2c_client *client = dev->client;
- struct dtv_frontend_properties *c = &fe->dtv_property_cache;
int ret, i;
unsigned int uitmp, div_ref, div_ref_val, div_n, k, k_cw, div_out;
u64 f_vco;
u8 synth_config;
unsigned long timeout;
- dev_dbg(&client->dev,
- "delivery_system=%u frequency=%u bandwidth_hz=%u\n",
- c->delivery_system, c->frequency, c->bandwidth_hz);
+ if (!dev->active) {
+ dev_dbg(&client->dev, "tuner is sleeping\n");
+ return 0;
+ }
/*
* Fractional-N synthesizer
@@ -69,7 +68,7 @@ static int fc2580_set_params(struct dvb_frontend *fe)
* +-------+
*/
for (i = 0; i < ARRAY_SIZE(fc2580_pll_lut); i++) {
- if (c->frequency <= fc2580_pll_lut[i].freq)
+ if (dev->f_frequency <= fc2580_pll_lut[i].freq)
break;
}
if (i == ARRAY_SIZE(fc2580_pll_lut)) {
@@ -80,7 +79,7 @@ static int fc2580_set_params(struct dvb_frontend *fe)
#define DIV_PRE_N 2
#define F_REF dev->clk
div_out = fc2580_pll_lut[i].div_out;
- f_vco = (u64) c->frequency * div_out;
+ f_vco = (u64) dev->f_frequency * div_out;
synth_config = fc2580_pll_lut[i].band;
if (f_vco < 2600000000ULL)
synth_config |= 0x06;
@@ -106,8 +105,9 @@ static int fc2580_set_params(struct dvb_frontend *fe)
k_cw = div_u64((u64) k * 0x100000, uitmp);
dev_dbg(&client->dev,
- "frequency=%u f_vco=%llu F_REF=%u div_ref=%u div_n=%u k=%u div_out=%u k_cw=%0x\n",
- c->frequency, f_vco, F_REF, div_ref, div_n, k, div_out, k_cw);
+ "frequency=%u bandwidth=%u f_vco=%llu F_REF=%u div_ref=%u div_n=%u k=%u div_out=%u k_cw=%0x\n",
+ dev->f_frequency, dev->f_bandwidth, f_vco, F_REF, div_ref,
+ div_n, k, div_out, k_cw);
ret = regmap_write(dev->regmap, 0x02, synth_config);
if (ret)
@@ -131,7 +131,7 @@ static int fc2580_set_params(struct dvb_frontend *fe)
/* registers */
for (i = 0; i < ARRAY_SIZE(fc2580_freq_regs_lut); i++) {
- if (c->frequency <= fc2580_freq_regs_lut[i].freq)
+ if (dev->f_frequency <= fc2580_freq_regs_lut[i].freq)
break;
}
if (i == ARRAY_SIZE(fc2580_freq_regs_lut)) {
@@ -237,7 +237,7 @@ static int fc2580_set_params(struct dvb_frontend *fe)
/* IF filters */
for (i = 0; i < ARRAY_SIZE(fc2580_if_filter_lut); i++) {
- if (c->bandwidth_hz <= fc2580_if_filter_lut[i].freq)
+ if (dev->f_bandwidth <= fc2580_if_filter_lut[i].freq)
break;
}
if (i == ARRAY_SIZE(fc2580_if_filter_lut)) {
@@ -249,7 +249,7 @@ static int fc2580_set_params(struct dvb_frontend *fe)
if (ret)
goto err;
- uitmp = (unsigned int) 8058000 - (c->bandwidth_hz * 122 / 100 / 2);
+ uitmp = (unsigned int) 8058000 - (dev->f_bandwidth * 122 / 100 / 2);
uitmp = div64_u64((u64) dev->clk * uitmp, 1000000000000ULL);
ret = regmap_write(dev->regmap, 0x37, uitmp);
if (ret)
@@ -285,9 +285,8 @@ err:
return ret;
}
-static int fc2580_init(struct dvb_frontend *fe)
+static int fc2580_init(struct fc2580_dev *dev)
{
- struct fc2580_dev *dev = fe->tuner_priv;
struct i2c_client *client = dev->client;
int ret, i;
@@ -300,56 +299,236 @@ static int fc2580_init(struct dvb_frontend *fe)
goto err;
}
+ dev->active = true;
return 0;
err:
dev_dbg(&client->dev, "failed=%d\n", ret);
return ret;
}
-static int fc2580_sleep(struct dvb_frontend *fe)
+static int fc2580_sleep(struct fc2580_dev *dev)
{
- struct fc2580_dev *dev = fe->tuner_priv;
struct i2c_client *client = dev->client;
int ret;
dev_dbg(&client->dev, "\n");
+ dev->active = false;
+
ret = regmap_write(dev->regmap, 0x02, 0x0a);
if (ret)
goto err;
-
return 0;
err:
dev_dbg(&client->dev, "failed=%d\n", ret);
return ret;
}
-static int fc2580_get_if_frequency(struct dvb_frontend *fe, u32 *frequency)
+/*
+ * DVB API
+ */
+static int fc2580_dvb_set_params(struct dvb_frontend *fe)
{
struct fc2580_dev *dev = fe->tuner_priv;
- struct i2c_client *client = dev->client;
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
- dev_dbg(&client->dev, "\n");
+ dev->f_frequency = c->frequency;
+ dev->f_bandwidth = c->bandwidth_hz;
+ return fc2580_set_params(dev);
+}
- *frequency = 0; /* Zero-IF */
+static int fc2580_dvb_init(struct dvb_frontend *fe)
+{
+ return fc2580_init(fe->tuner_priv);
+}
+static int fc2580_dvb_sleep(struct dvb_frontend *fe)
+{
+ return fc2580_sleep(fe->tuner_priv);
+}
+
+static int fc2580_dvb_get_if_frequency(struct dvb_frontend *fe, u32 *frequency)
+{
+ *frequency = 0; /* Zero-IF */
return 0;
}
-static const struct dvb_tuner_ops fc2580_tuner_ops = {
+static const struct dvb_tuner_ops fc2580_dvb_tuner_ops = {
.info = {
.name = "FCI FC2580",
.frequency_min = 174000000,
.frequency_max = 862000000,
},
- .init = fc2580_init,
- .sleep = fc2580_sleep,
- .set_params = fc2580_set_params,
+ .init = fc2580_dvb_init,
+ .sleep = fc2580_dvb_sleep,
+ .set_params = fc2580_dvb_set_params,
- .get_if_frequency = fc2580_get_if_frequency,
+ .get_if_frequency = fc2580_dvb_get_if_frequency,
};
+/*
+ * V4L2 API
+ */
+#if IS_ENABLED(CONFIG_VIDEO_V4L2)
+static const struct v4l2_frequency_band bands[] = {
+ {
+ .type = V4L2_TUNER_RF,
+ .index = 0,
+ .capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS,
+ .rangelow = 130000000,
+ .rangehigh = 2000000000,
+ },
+};
+
+static inline struct fc2580_dev *fc2580_subdev_to_dev(struct v4l2_subdev *sd)
+{
+ return container_of(sd, struct fc2580_dev, subdev);
+}
+
+static int fc2580_s_power(struct v4l2_subdev *sd, int on)
+{
+ struct fc2580_dev *dev = fc2580_subdev_to_dev(sd);
+ struct i2c_client *client = dev->client;
+ int ret;
+
+ dev_dbg(&client->dev, "on=%d\n", on);
+
+ if (on)
+ ret = fc2580_init(dev);
+ else
+ ret = fc2580_sleep(dev);
+ if (ret)
+ return ret;
+
+ return fc2580_set_params(dev);
+}
+
+static const struct v4l2_subdev_core_ops fc2580_subdev_core_ops = {
+ .s_power = fc2580_s_power,
+};
+
+static int fc2580_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *v)
+{
+ struct fc2580_dev *dev = fc2580_subdev_to_dev(sd);
+ struct i2c_client *client = dev->client;
+
+ dev_dbg(&client->dev, "index=%d\n", v->index);
+
+ strlcpy(v->name, "FCI FC2580", sizeof(v->name));
+ v->type = V4L2_TUNER_RF;
+ v->capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS;
+ v->rangelow = bands[0].rangelow;
+ v->rangehigh = bands[0].rangehigh;
+ return 0;
+}
+
+static int fc2580_s_tuner(struct v4l2_subdev *sd, const struct v4l2_tuner *v)
+{
+ struct fc2580_dev *dev = fc2580_subdev_to_dev(sd);
+ struct i2c_client *client = dev->client;
+
+ dev_dbg(&client->dev, "index=%d\n", v->index);
+ return 0;
+}
+
+static int fc2580_g_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *f)
+{
+ struct fc2580_dev *dev = fc2580_subdev_to_dev(sd);
+ struct i2c_client *client = dev->client;
+
+ dev_dbg(&client->dev, "tuner=%d\n", f->tuner);
+ f->frequency = dev->f_frequency;
+ return 0;
+}
+
+static int fc2580_s_frequency(struct v4l2_subdev *sd,
+ const struct v4l2_frequency *f)
+{
+ struct fc2580_dev *dev = fc2580_subdev_to_dev(sd);
+ struct i2c_client *client = dev->client;
+
+ dev_dbg(&client->dev, "tuner=%d type=%d frequency=%u\n",
+ f->tuner, f->type, f->frequency);
+
+ dev->f_frequency = clamp_t(unsigned int, f->frequency,
+ bands[0].rangelow, bands[0].rangehigh);
+ return fc2580_set_params(dev);
+}
+
+static int fc2580_enum_freq_bands(struct v4l2_subdev *sd,
+ struct v4l2_frequency_band *band)
+{
+ struct fc2580_dev *dev = fc2580_subdev_to_dev(sd);
+ struct i2c_client *client = dev->client;
+
+ dev_dbg(&client->dev, "tuner=%d type=%d index=%d\n",
+ band->tuner, band->type, band->index);
+
+ if (band->index >= ARRAY_SIZE(bands))
+ return -EINVAL;
+
+ band->capability = bands[band->index].capability;
+ band->rangelow = bands[band->index].rangelow;
+ band->rangehigh = bands[band->index].rangehigh;
+ return 0;
+}
+
+static const struct v4l2_subdev_tuner_ops fc2580_subdev_tuner_ops = {
+ .g_tuner = fc2580_g_tuner,
+ .s_tuner = fc2580_s_tuner,
+ .g_frequency = fc2580_g_frequency,
+ .s_frequency = fc2580_s_frequency,
+ .enum_freq_bands = fc2580_enum_freq_bands,
+};
+
+static const struct v4l2_subdev_ops fc2580_subdev_ops = {
+ .core = &fc2580_subdev_core_ops,
+ .tuner = &fc2580_subdev_tuner_ops,
+};
+
+static int fc2580_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct fc2580_dev *dev = container_of(ctrl->handler, struct fc2580_dev, hdl);
+ struct i2c_client *client = dev->client;
+ int ret;
+
+ dev_dbg(&client->dev, "ctrl: id=%d name=%s cur.val=%d val=%d\n",
+ ctrl->id, ctrl->name, ctrl->cur.val, ctrl->val);
+
+ switch (ctrl->id) {
+ case V4L2_CID_RF_TUNER_BANDWIDTH_AUTO:
+ case V4L2_CID_RF_TUNER_BANDWIDTH:
+ /*
+ * TODO: Auto logic does not work 100% correctly as tuner driver
+ * do not have information to calculate maximum suitable
+ * bandwidth. Calculating it is responsible of master driver.
+ */
+ dev->f_bandwidth = dev->bandwidth->val;
+ ret = fc2580_set_params(dev);
+ break;
+ default:
+ dev_dbg(&client->dev, "unknown ctrl");
+ ret = -EINVAL;
+ }
+ return ret;
+}
+
+static const struct v4l2_ctrl_ops fc2580_ctrl_ops = {
+ .s_ctrl = fc2580_s_ctrl,
+};
+#endif
+
+static struct v4l2_subdev *fc2580_get_v4l2_subdev(struct i2c_client *client)
+{
+ struct fc2580_dev *dev = i2c_get_clientdata(client);
+
+ if (dev->subdev.ops)
+ return &dev->subdev;
+ else
+ return NULL;
+}
+
static int fc2580_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
@@ -395,9 +574,31 @@ static int fc2580_probe(struct i2c_client *client,
goto err_kfree;
}
+#if IS_ENABLED(CONFIG_VIDEO_V4L2)
+ /* Register controls */
+ v4l2_ctrl_handler_init(&dev->hdl, 2);
+ dev->bandwidth_auto = v4l2_ctrl_new_std(&dev->hdl, &fc2580_ctrl_ops,
+ V4L2_CID_RF_TUNER_BANDWIDTH_AUTO,
+ 0, 1, 1, 1);
+ dev->bandwidth = v4l2_ctrl_new_std(&dev->hdl, &fc2580_ctrl_ops,
+ V4L2_CID_RF_TUNER_BANDWIDTH,
+ 3000, 10000000, 1, 3000);
+ v4l2_ctrl_auto_cluster(2, &dev->bandwidth_auto, 0, false);
+ if (dev->hdl.error) {
+ ret = dev->hdl.error;
+ dev_err(&client->dev, "Could not initialize controls\n");
+ v4l2_ctrl_handler_free(&dev->hdl);
+ goto err_kfree;
+ }
+ dev->subdev.ctrl_handler = &dev->hdl;
+ dev->f_frequency = bands[0].rangelow;
+ dev->f_bandwidth = dev->bandwidth->val;
+ v4l2_i2c_subdev_init(&dev->subdev, client, &fc2580_subdev_ops);
+#endif
fe->tuner_priv = dev;
- memcpy(&fe->ops.tuner_ops, &fc2580_tuner_ops,
- sizeof(struct dvb_tuner_ops));
+ memcpy(&fe->ops.tuner_ops, &fc2580_dvb_tuner_ops,
+ sizeof(fe->ops.tuner_ops));
+ pdata->get_v4l2_subdev = fc2580_get_v4l2_subdev;
i2c_set_clientdata(client, dev);
dev_info(&client->dev, "FCI FC2580 successfully identified\n");
@@ -415,6 +616,9 @@ static int fc2580_remove(struct i2c_client *client)
dev_dbg(&client->dev, "\n");
+#if IS_ENABLED(CONFIG_VIDEO_V4L2)
+ v4l2_ctrl_handler_free(&dev->hdl);
+#endif
kfree(dev);
return 0;
}
diff --git a/drivers/media/tuners/fc2580.h b/drivers/media/tuners/fc2580.h
index 61ee0e826cb9..862ea46995d7 100644
--- a/drivers/media/tuners/fc2580.h
+++ b/drivers/media/tuners/fc2580.h
@@ -22,6 +22,8 @@
#define FC2580_H
#include "dvb_frontend.h"
+#include <media/v4l2-subdev.h>
+#include <linux/i2c.h>
/*
* I2C address
@@ -32,10 +34,13 @@
* struct fc2580_platform_data - Platform data for the fc2580 driver
* @clk: Clock frequency (0 = internal clock).
* @dvb_frontend: DVB frontend.
+ * @get_v4l2_subdev: Get V4L2 subdev.
*/
struct fc2580_platform_data {
u32 clk;
struct dvb_frontend *dvb_frontend;
+
+ struct v4l2_subdev* (*get_v4l2_subdev)(struct i2c_client *);
};
#endif
diff --git a/drivers/media/tuners/fc2580_priv.h b/drivers/media/tuners/fc2580_priv.h
index bd88b0141141..031a43d7e7af 100644
--- a/drivers/media/tuners/fc2580_priv.h
+++ b/drivers/media/tuners/fc2580_priv.h
@@ -22,6 +22,8 @@
#define FC2580_PRIV_H
#include "fc2580.h"
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-subdev.h>
#include <linux/regmap.h>
#include <linux/math64.h>
@@ -131,6 +133,15 @@ struct fc2580_dev {
u32 clk;
struct i2c_client *client;
struct regmap *regmap;
+ struct v4l2_subdev subdev;
+ bool active;
+ unsigned int f_frequency;
+ unsigned int f_bandwidth;
+
+ /* Controls */
+ struct v4l2_ctrl_handler hdl;
+ struct v4l2_ctrl *bandwidth_auto;
+ struct v4l2_ctrl *bandwidth;
};
#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-11 15:28:42 +0000