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path: root/drivers/media/tuners/e4000.c
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Diffstat (limited to 'drivers/media/tuners/e4000.c')
-rw-r--r--drivers/media/tuners/e4000.c592
1 files changed, 373 insertions, 219 deletions
diff --git a/drivers/media/tuners/e4000.c b/drivers/media/tuners/e4000.c
index 510239f80..03538f88f 100644
--- a/drivers/media/tuners/e4000.c
+++ b/drivers/media/tuners/e4000.c
@@ -19,164 +19,176 @@
*/
#include "e4000_priv.h"
-#include <linux/math64.h>
-static int e4000_init(struct dvb_frontend *fe)
+static int e4000_init(struct e4000_dev *dev)
{
- struct e4000 *s = fe->tuner_priv;
+ struct i2c_client *client = dev->client;
int ret;
- dev_dbg(&s->client->dev, "\n");
-
- /* dummy I2C to ensure I2C wakes up */
- ret = regmap_write(s->regmap, 0x02, 0x40);
+ dev_dbg(&client->dev, "\n");
/* reset */
- ret = regmap_write(s->regmap, 0x00, 0x01);
+ ret = regmap_write(dev->regmap, 0x00, 0x01);
if (ret)
goto err;
/* disable output clock */
- ret = regmap_write(s->regmap, 0x06, 0x00);
+ ret = regmap_write(dev->regmap, 0x06, 0x00);
if (ret)
goto err;
- ret = regmap_write(s->regmap, 0x7a, 0x96);
+ ret = regmap_write(dev->regmap, 0x7a, 0x96);
if (ret)
goto err;
/* configure gains */
- ret = regmap_bulk_write(s->regmap, 0x7e, "\x01\xfe", 2);
+ ret = regmap_bulk_write(dev->regmap, 0x7e, "\x01\xfe", 2);
if (ret)
goto err;
- ret = regmap_write(s->regmap, 0x82, 0x00);
+ ret = regmap_write(dev->regmap, 0x82, 0x00);
if (ret)
goto err;
- ret = regmap_write(s->regmap, 0x24, 0x05);
+ ret = regmap_write(dev->regmap, 0x24, 0x05);
if (ret)
goto err;
- ret = regmap_bulk_write(s->regmap, 0x87, "\x20\x01", 2);
+ ret = regmap_bulk_write(dev->regmap, 0x87, "\x20\x01", 2);
if (ret)
goto err;
- ret = regmap_bulk_write(s->regmap, 0x9f, "\x7f\x07", 2);
+ ret = regmap_bulk_write(dev->regmap, 0x9f, "\x7f\x07", 2);
if (ret)
goto err;
/* DC offset control */
- ret = regmap_write(s->regmap, 0x2d, 0x1f);
+ ret = regmap_write(dev->regmap, 0x2d, 0x1f);
if (ret)
goto err;
- ret = regmap_bulk_write(s->regmap, 0x70, "\x01\x01", 2);
+ ret = regmap_bulk_write(dev->regmap, 0x70, "\x01\x01", 2);
if (ret)
goto err;
/* gain control */
- ret = regmap_write(s->regmap, 0x1a, 0x17);
+ ret = regmap_write(dev->regmap, 0x1a, 0x17);
if (ret)
goto err;
- ret = regmap_write(s->regmap, 0x1f, 0x1a);
+ ret = regmap_write(dev->regmap, 0x1f, 0x1a);
if (ret)
goto err;
- s->active = true;
-err:
- if (ret)
- dev_dbg(&s->client->dev, "failed=%d\n", ret);
+ dev->active = true;
+ return 0;
+err:
+ dev_dbg(&client->dev, "failed=%d\n", ret);
return ret;
}
-static int e4000_sleep(struct dvb_frontend *fe)
+static int e4000_sleep(struct e4000_dev *dev)
{
- struct e4000 *s = fe->tuner_priv;
+ struct i2c_client *client = dev->client;
int ret;
- dev_dbg(&s->client->dev, "\n");
+ dev_dbg(&client->dev, "\n");
- s->active = false;
+ dev->active = false;
- ret = regmap_write(s->regmap, 0x00, 0x00);
+ ret = regmap_write(dev->regmap, 0x00, 0x00);
if (ret)
goto err;
-err:
- if (ret)
- dev_dbg(&s->client->dev, "failed=%d\n", ret);
+ return 0;
+err:
+ dev_dbg(&client->dev, "failed=%d\n", ret);
return ret;
}
-static int e4000_set_params(struct dvb_frontend *fe)
+static int e4000_set_params(struct e4000_dev *dev)
{
- struct e4000 *s = fe->tuner_priv;
- struct dtv_frontend_properties *c = &fe->dtv_property_cache;
- int ret, i, sigma_delta;
- unsigned int pll_n, pll_f;
+ struct i2c_client *client = dev->client;
+ int ret, i;
+ unsigned int div_n, k, k_cw, div_out;
u64 f_vco;
u8 buf[5], i_data[4], q_data[4];
- dev_dbg(&s->client->dev,
- "delivery_system=%d 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;
+ }
/* gain control manual */
- ret = regmap_write(s->regmap, 0x1a, 0x00);
- if (ret)
- goto err;
-
- /* PLL */
+ ret = regmap_write(dev->regmap, 0x1a, 0x00);
+ if (ret)
+ goto err;
+
+ /*
+ * Fractional-N synthesizer
+ *
+ * +----------------------------+
+ * v |
+ * Fref +----+ +-------+ +------+ +---+
+ * ------> | PD | --> | VCO | ------> | /N.F | <-- | K |
+ * +----+ +-------+ +------+ +---+
+ * |
+ * |
+ * v
+ * +-------+ Fout
+ * | /Rout | ------>
+ * +-------+
+ */
for (i = 0; i < ARRAY_SIZE(e4000_pll_lut); i++) {
- if (c->frequency <= e4000_pll_lut[i].freq)
+ if (dev->f_frequency <= e4000_pll_lut[i].freq)
break;
}
-
if (i == ARRAY_SIZE(e4000_pll_lut)) {
ret = -EINVAL;
goto err;
}
- f_vco = 1ull * c->frequency * e4000_pll_lut[i].mul;
- pll_n = div_u64_rem(f_vco, s->clock, &pll_f);
- sigma_delta = div_u64(0x10000ULL * pll_f, s->clock);
- buf[0] = pll_n;
- buf[1] = (sigma_delta >> 0) & 0xff;
- buf[2] = (sigma_delta >> 8) & 0xff;
+ #define F_REF dev->clk
+ div_out = e4000_pll_lut[i].div_out;
+ f_vco = (u64) dev->f_frequency * div_out;
+ /* calculate PLL integer and fractional control word */
+ div_n = div_u64_rem(f_vco, F_REF, &k);
+ k_cw = div_u64((u64) k * 0x10000, F_REF);
+
+ dev_dbg(&client->dev,
+ "frequency=%u bandwidth=%u f_vco=%llu F_REF=%u div_n=%u k=%u k_cw=%04x div_out=%u\n",
+ dev->f_frequency, dev->f_bandwidth, f_vco, F_REF, div_n, k,
+ k_cw, div_out);
+
+ buf[0] = div_n;
+ buf[1] = (k_cw >> 0) & 0xff;
+ buf[2] = (k_cw >> 8) & 0xff;
buf[3] = 0x00;
- buf[4] = e4000_pll_lut[i].div;
-
- dev_dbg(&s->client->dev, "f_vco=%llu pll div=%d sigma_delta=%04x\n",
- f_vco, buf[0], sigma_delta);
-
- ret = regmap_bulk_write(s->regmap, 0x09, buf, 5);
+ buf[4] = e4000_pll_lut[i].div_out_reg;
+ ret = regmap_bulk_write(dev->regmap, 0x09, buf, 5);
if (ret)
goto err;
/* LNA filter (RF filter) */
for (i = 0; i < ARRAY_SIZE(e400_lna_filter_lut); i++) {
- if (c->frequency <= e400_lna_filter_lut[i].freq)
+ if (dev->f_frequency <= e400_lna_filter_lut[i].freq)
break;
}
-
if (i == ARRAY_SIZE(e400_lna_filter_lut)) {
ret = -EINVAL;
goto err;
}
- ret = regmap_write(s->regmap, 0x10, e400_lna_filter_lut[i].val);
+ ret = regmap_write(dev->regmap, 0x10, e400_lna_filter_lut[i].val);
if (ret)
goto err;
/* IF filters */
for (i = 0; i < ARRAY_SIZE(e4000_if_filter_lut); i++) {
- if (c->bandwidth_hz <= e4000_if_filter_lut[i].freq)
+ if (dev->f_bandwidth <= e4000_if_filter_lut[i].freq)
break;
}
-
if (i == ARRAY_SIZE(e4000_if_filter_lut)) {
ret = -EINVAL;
goto err;
@@ -185,48 +197,47 @@ static int e4000_set_params(struct dvb_frontend *fe)
buf[0] = e4000_if_filter_lut[i].reg11_val;
buf[1] = e4000_if_filter_lut[i].reg12_val;
- ret = regmap_bulk_write(s->regmap, 0x11, buf, 2);
+ ret = regmap_bulk_write(dev->regmap, 0x11, buf, 2);
if (ret)
goto err;
/* frequency band */
for (i = 0; i < ARRAY_SIZE(e4000_band_lut); i++) {
- if (c->frequency <= e4000_band_lut[i].freq)
+ if (dev->f_frequency <= e4000_band_lut[i].freq)
break;
}
-
if (i == ARRAY_SIZE(e4000_band_lut)) {
ret = -EINVAL;
goto err;
}
- ret = regmap_write(s->regmap, 0x07, e4000_band_lut[i].reg07_val);
+ ret = regmap_write(dev->regmap, 0x07, e4000_band_lut[i].reg07_val);
if (ret)
goto err;
- ret = regmap_write(s->regmap, 0x78, e4000_band_lut[i].reg78_val);
+ ret = regmap_write(dev->regmap, 0x78, e4000_band_lut[i].reg78_val);
if (ret)
goto err;
/* DC offset */
for (i = 0; i < 4; i++) {
if (i == 0)
- ret = regmap_bulk_write(s->regmap, 0x15, "\x00\x7e\x24", 3);
+ ret = regmap_bulk_write(dev->regmap, 0x15, "\x00\x7e\x24", 3);
else if (i == 1)
- ret = regmap_bulk_write(s->regmap, 0x15, "\x00\x7f", 2);
+ ret = regmap_bulk_write(dev->regmap, 0x15, "\x00\x7f", 2);
else if (i == 2)
- ret = regmap_bulk_write(s->regmap, 0x15, "\x01", 1);
+ ret = regmap_bulk_write(dev->regmap, 0x15, "\x01", 1);
else
- ret = regmap_bulk_write(s->regmap, 0x16, "\x7e", 1);
+ ret = regmap_bulk_write(dev->regmap, 0x16, "\x7e", 1);
if (ret)
goto err;
- ret = regmap_write(s->regmap, 0x29, 0x01);
+ ret = regmap_write(dev->regmap, 0x29, 0x01);
if (ret)
goto err;
- ret = regmap_bulk_read(s->regmap, 0x2a, buf, 3);
+ ret = regmap_bulk_read(dev->regmap, 0x2a, buf, 3);
if (ret)
goto err;
@@ -237,174 +248,294 @@ static int e4000_set_params(struct dvb_frontend *fe)
swap(q_data[2], q_data[3]);
swap(i_data[2], i_data[3]);
- ret = regmap_bulk_write(s->regmap, 0x50, q_data, 4);
+ ret = regmap_bulk_write(dev->regmap, 0x50, q_data, 4);
if (ret)
goto err;
- ret = regmap_bulk_write(s->regmap, 0x60, i_data, 4);
+ ret = regmap_bulk_write(dev->regmap, 0x60, i_data, 4);
if (ret)
goto err;
/* gain control auto */
- ret = regmap_write(s->regmap, 0x1a, 0x17);
+ ret = regmap_write(dev->regmap, 0x1a, 0x17);
if (ret)
goto err;
+
+ return 0;
err:
+ dev_dbg(&client->dev, "failed=%d\n", ret);
+ return ret;
+}
+
+/*
+ * 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 = 59000000,
+ .rangehigh = 1105000000,
+ },
+ {
+ .type = V4L2_TUNER_RF,
+ .index = 1,
+ .capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS,
+ .rangelow = 1249000000,
+ .rangehigh = 2208000000UL,
+ },
+};
+
+static inline struct e4000_dev *e4000_subdev_to_dev(struct v4l2_subdev *sd)
+{
+ return container_of(sd, struct e4000_dev, sd);
+}
+
+static int e4000_s_power(struct v4l2_subdev *sd, int on)
+{
+ struct e4000_dev *dev = e4000_subdev_to_dev(sd);
+ struct i2c_client *client = dev->client;
+ int ret;
+
+ dev_dbg(&client->dev, "on=%d\n", on);
+
+ if (on)
+ ret = e4000_init(dev);
+ else
+ ret = e4000_sleep(dev);
if (ret)
- dev_dbg(&s->client->dev, "failed=%d\n", ret);
+ return ret;
- return ret;
+ return e4000_set_params(dev);
+}
+
+static const struct v4l2_subdev_core_ops e4000_subdev_core_ops = {
+ .s_power = e4000_s_power,
+};
+
+static int e4000_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *v)
+{
+ struct e4000_dev *dev = e4000_subdev_to_dev(sd);
+ struct i2c_client *client = dev->client;
+
+ dev_dbg(&client->dev, "index=%d\n", v->index);
+
+ strlcpy(v->name, "Elonics E4000", 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[1].rangehigh;
+ return 0;
}
-static int e4000_get_if_frequency(struct dvb_frontend *fe, u32 *frequency)
+static int e4000_s_tuner(struct v4l2_subdev *sd, const struct v4l2_tuner *v)
{
- struct e4000 *s = fe->tuner_priv;
+ struct e4000_dev *dev = e4000_subdev_to_dev(sd);
+ struct i2c_client *client = dev->client;
- dev_dbg(&s->client->dev, "\n");
+ dev_dbg(&client->dev, "index=%d\n", v->index);
+ return 0;
+}
- *frequency = 0; /* Zero-IF */
+static int e4000_g_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *f)
+{
+ struct e4000_dev *dev = e4000_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;
}
-#if IS_ENABLED(CONFIG_VIDEO_V4L2)
+static int e4000_s_frequency(struct v4l2_subdev *sd,
+ const struct v4l2_frequency *f)
+{
+ struct e4000_dev *dev = e4000_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[1].rangehigh);
+ return e4000_set_params(dev);
+}
+
+static int e4000_enum_freq_bands(struct v4l2_subdev *sd,
+ struct v4l2_frequency_band *band)
+{
+ struct e4000_dev *dev = e4000_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 e4000_subdev_tuner_ops = {
+ .g_tuner = e4000_g_tuner,
+ .s_tuner = e4000_s_tuner,
+ .g_frequency = e4000_g_frequency,
+ .s_frequency = e4000_s_frequency,
+ .enum_freq_bands = e4000_enum_freq_bands,
+};
+
+static const struct v4l2_subdev_ops e4000_subdev_ops = {
+ .core = &e4000_subdev_core_ops,
+ .tuner = &e4000_subdev_tuner_ops,
+};
+
static int e4000_set_lna_gain(struct dvb_frontend *fe)
{
- struct e4000 *s = fe->tuner_priv;
+ struct e4000_dev *dev = fe->tuner_priv;
+ struct i2c_client *client = dev->client;
int ret;
u8 u8tmp;
- dev_dbg(&s->client->dev, "lna auto=%d->%d val=%d->%d\n",
- s->lna_gain_auto->cur.val, s->lna_gain_auto->val,
- s->lna_gain->cur.val, s->lna_gain->val);
+ dev_dbg(&client->dev, "lna auto=%d->%d val=%d->%d\n",
+ dev->lna_gain_auto->cur.val, dev->lna_gain_auto->val,
+ dev->lna_gain->cur.val, dev->lna_gain->val);
- if (s->lna_gain_auto->val && s->if_gain_auto->cur.val)
+ if (dev->lna_gain_auto->val && dev->if_gain_auto->cur.val)
u8tmp = 0x17;
- else if (s->lna_gain_auto->val)
+ else if (dev->lna_gain_auto->val)
u8tmp = 0x19;
- else if (s->if_gain_auto->cur.val)
+ else if (dev->if_gain_auto->cur.val)
u8tmp = 0x16;
else
u8tmp = 0x10;
- ret = regmap_write(s->regmap, 0x1a, u8tmp);
+ ret = regmap_write(dev->regmap, 0x1a, u8tmp);
if (ret)
goto err;
- if (s->lna_gain_auto->val == false) {
- ret = regmap_write(s->regmap, 0x14, s->lna_gain->val);
+ if (dev->lna_gain_auto->val == false) {
+ ret = regmap_write(dev->regmap, 0x14, dev->lna_gain->val);
if (ret)
goto err;
}
-err:
- if (ret)
- dev_dbg(&s->client->dev, "failed=%d\n", ret);
+ return 0;
+err:
+ dev_dbg(&client->dev, "failed=%d\n", ret);
return ret;
}
static int e4000_set_mixer_gain(struct dvb_frontend *fe)
{
- struct e4000 *s = fe->tuner_priv;
+ struct e4000_dev *dev = fe->tuner_priv;
+ struct i2c_client *client = dev->client;
int ret;
u8 u8tmp;
- dev_dbg(&s->client->dev, "mixer auto=%d->%d val=%d->%d\n",
- s->mixer_gain_auto->cur.val, s->mixer_gain_auto->val,
- s->mixer_gain->cur.val, s->mixer_gain->val);
+ dev_dbg(&client->dev, "mixer auto=%d->%d val=%d->%d\n",
+ dev->mixer_gain_auto->cur.val, dev->mixer_gain_auto->val,
+ dev->mixer_gain->cur.val, dev->mixer_gain->val);
- if (s->mixer_gain_auto->val)
+ if (dev->mixer_gain_auto->val)
u8tmp = 0x15;
else
u8tmp = 0x14;
- ret = regmap_write(s->regmap, 0x20, u8tmp);
+ ret = regmap_write(dev->regmap, 0x20, u8tmp);
if (ret)
goto err;
- if (s->mixer_gain_auto->val == false) {
- ret = regmap_write(s->regmap, 0x15, s->mixer_gain->val);
+ if (dev->mixer_gain_auto->val == false) {
+ ret = regmap_write(dev->regmap, 0x15, dev->mixer_gain->val);
if (ret)
goto err;
}
-err:
- if (ret)
- dev_dbg(&s->client->dev, "failed=%d\n", ret);
+ return 0;
+err:
+ dev_dbg(&client->dev, "failed=%d\n", ret);
return ret;
}
static int e4000_set_if_gain(struct dvb_frontend *fe)
{
- struct e4000 *s = fe->tuner_priv;
+ struct e4000_dev *dev = fe->tuner_priv;
+ struct i2c_client *client = dev->client;
int ret;
u8 buf[2];
u8 u8tmp;
- dev_dbg(&s->client->dev, "if auto=%d->%d val=%d->%d\n",
- s->if_gain_auto->cur.val, s->if_gain_auto->val,
- s->if_gain->cur.val, s->if_gain->val);
+ dev_dbg(&client->dev, "if auto=%d->%d val=%d->%d\n",
+ dev->if_gain_auto->cur.val, dev->if_gain_auto->val,
+ dev->if_gain->cur.val, dev->if_gain->val);
- if (s->if_gain_auto->val && s->lna_gain_auto->cur.val)
+ if (dev->if_gain_auto->val && dev->lna_gain_auto->cur.val)
u8tmp = 0x17;
- else if (s->lna_gain_auto->cur.val)
+ else if (dev->lna_gain_auto->cur.val)
u8tmp = 0x19;
- else if (s->if_gain_auto->val)
+ else if (dev->if_gain_auto->val)
u8tmp = 0x16;
else
u8tmp = 0x10;
- ret = regmap_write(s->regmap, 0x1a, u8tmp);
+ ret = regmap_write(dev->regmap, 0x1a, u8tmp);
if (ret)
goto err;
- if (s->if_gain_auto->val == false) {
- buf[0] = e4000_if_gain_lut[s->if_gain->val].reg16_val;
- buf[1] = e4000_if_gain_lut[s->if_gain->val].reg17_val;
- ret = regmap_bulk_write(s->regmap, 0x16, buf, 2);
+ if (dev->if_gain_auto->val == false) {
+ buf[0] = e4000_if_gain_lut[dev->if_gain->val].reg16_val;
+ buf[1] = e4000_if_gain_lut[dev->if_gain->val].reg17_val;
+ ret = regmap_bulk_write(dev->regmap, 0x16, buf, 2);
if (ret)
goto err;
}
-err:
- if (ret)
- dev_dbg(&s->client->dev, "failed=%d\n", ret);
+ return 0;
+err:
+ dev_dbg(&client->dev, "failed=%d\n", ret);
return ret;
}
static int e4000_pll_lock(struct dvb_frontend *fe)
{
- struct e4000 *s = fe->tuner_priv;
+ struct e4000_dev *dev = fe->tuner_priv;
+ struct i2c_client *client = dev->client;
int ret;
- unsigned int utmp;
+ unsigned int uitmp;
- ret = regmap_read(s->regmap, 0x07, &utmp);
+ ret = regmap_read(dev->regmap, 0x07, &uitmp);
if (ret)
goto err;
- s->pll_lock->val = (utmp & 0x01);
-err:
- if (ret)
- dev_dbg(&s->client->dev, "failed=%d\n", ret);
+ dev->pll_lock->val = (uitmp & 0x01);
+ return 0;
+err:
+ dev_dbg(&client->dev, "failed=%d\n", ret);
return ret;
}
static int e4000_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
{
- struct e4000 *s = container_of(ctrl->handler, struct e4000, hdl);
+ struct e4000_dev *dev = container_of(ctrl->handler, struct e4000_dev, hdl);
+ struct i2c_client *client = dev->client;
int ret;
- if (!s->active)
+ if (!dev->active)
return 0;
switch (ctrl->id) {
case V4L2_CID_RF_TUNER_PLL_LOCK:
- ret = e4000_pll_lock(s->fe);
+ ret = e4000_pll_lock(dev->fe);
break;
default:
- dev_dbg(&s->client->dev, "unknown ctrl: id=%d name=%s\n",
- ctrl->id, ctrl->name);
+ dev_dbg(&client->dev, "unknown ctrl: id=%d name=%s\n",
+ ctrl->id, ctrl->name);
ret = -EINVAL;
}
@@ -413,35 +544,39 @@ static int e4000_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
static int e4000_s_ctrl(struct v4l2_ctrl *ctrl)
{
- struct e4000 *s = container_of(ctrl->handler, struct e4000, hdl);
- struct dvb_frontend *fe = s->fe;
- struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+ struct e4000_dev *dev = container_of(ctrl->handler, struct e4000_dev, hdl);
+ struct i2c_client *client = dev->client;
int ret;
- if (!s->active)
+ if (!dev->active)
return 0;
switch (ctrl->id) {
case V4L2_CID_RF_TUNER_BANDWIDTH_AUTO:
case V4L2_CID_RF_TUNER_BANDWIDTH:
- c->bandwidth_hz = s->bandwidth->val;
- ret = e4000_set_params(s->fe);
+ /*
+ * 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 = e4000_set_params(dev);
break;
case V4L2_CID_RF_TUNER_LNA_GAIN_AUTO:
case V4L2_CID_RF_TUNER_LNA_GAIN:
- ret = e4000_set_lna_gain(s->fe);
+ ret = e4000_set_lna_gain(dev->fe);
break;
case V4L2_CID_RF_TUNER_MIXER_GAIN_AUTO:
case V4L2_CID_RF_TUNER_MIXER_GAIN:
- ret = e4000_set_mixer_gain(s->fe);
+ ret = e4000_set_mixer_gain(dev->fe);
break;
case V4L2_CID_RF_TUNER_IF_GAIN_AUTO:
case V4L2_CID_RF_TUNER_IF_GAIN:
- ret = e4000_set_if_gain(s->fe);
+ ret = e4000_set_if_gain(dev->fe);
break;
default:
- dev_dbg(&s->client->dev, "unknown ctrl: id=%d name=%s\n",
- ctrl->id, ctrl->name);
+ dev_dbg(&client->dev, "unknown ctrl: id=%d name=%s\n",
+ ctrl->id, ctrl->name);
ret = -EINVAL;
}
@@ -454,157 +589,176 @@ static const struct v4l2_ctrl_ops e4000_ctrl_ops = {
};
#endif
-static const struct dvb_tuner_ops e4000_tuner_ops = {
+/*
+ * DVB API
+ */
+static int e4000_dvb_set_params(struct dvb_frontend *fe)
+{
+ struct e4000_dev *dev = fe->tuner_priv;
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+
+ dev->f_frequency = c->frequency;
+ dev->f_bandwidth = c->bandwidth_hz;
+ return e4000_set_params(dev);
+}
+
+static int e4000_dvb_init(struct dvb_frontend *fe)
+{
+ return e4000_init(fe->tuner_priv);
+}
+
+static int e4000_dvb_sleep(struct dvb_frontend *fe)
+{
+ return e4000_sleep(fe->tuner_priv);
+}
+
+static int e4000_dvb_get_if_frequency(struct dvb_frontend *fe, u32 *frequency)
+{
+ *frequency = 0; /* Zero-IF */
+ return 0;
+}
+
+static const struct dvb_tuner_ops e4000_dvb_tuner_ops = {
.info = {
.name = "Elonics E4000",
.frequency_min = 174000000,
.frequency_max = 862000000,
},
- .init = e4000_init,
- .sleep = e4000_sleep,
- .set_params = e4000_set_params,
+ .init = e4000_dvb_init,
+ .sleep = e4000_dvb_sleep,
+ .set_params = e4000_dvb_set_params,
- .get_if_frequency = e4000_get_if_frequency,
+ .get_if_frequency = e4000_dvb_get_if_frequency,
};
-/*
- * Use V4L2 subdev to carry V4L2 control handler, even we don't implement
- * subdev itself, just to avoid reinventing the wheel.
- */
static int e4000_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
+ const struct i2c_device_id *id)
{
+ struct e4000_dev *dev;
struct e4000_config *cfg = client->dev.platform_data;
struct dvb_frontend *fe = cfg->fe;
- struct e4000 *s;
int ret;
- unsigned int utmp;
+ unsigned int uitmp;
static const struct regmap_config regmap_config = {
.reg_bits = 8,
.val_bits = 8,
- .max_register = 0xff,
};
- s = kzalloc(sizeof(struct e4000), GFP_KERNEL);
- if (!s) {
+ dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+ if (!dev) {
ret = -ENOMEM;
- dev_err(&client->dev, "kzalloc() failed\n");
goto err;
}
- s->clock = cfg->clock;
- s->client = client;
- s->fe = cfg->fe;
- s->regmap = devm_regmap_init_i2c(client, &regmap_config);
- if (IS_ERR(s->regmap)) {
- ret = PTR_ERR(s->regmap);
- goto err;
+ dev->clk = cfg->clock;
+ dev->client = client;
+ dev->fe = cfg->fe;
+ dev->regmap = devm_regmap_init_i2c(client, &regmap_config);
+ if (IS_ERR(dev->regmap)) {
+ ret = PTR_ERR(dev->regmap);
+ goto err_kfree;
}
/* check if the tuner is there */
- ret = regmap_read(s->regmap, 0x02, &utmp);
+ ret = regmap_read(dev->regmap, 0x02, &uitmp);
if (ret)
- goto err;
+ goto err_kfree;
- dev_dbg(&s->client->dev, "chip id=%02x\n", utmp);
+ dev_dbg(&client->dev, "chip id=%02x\n", uitmp);
- if (utmp != 0x40) {
+ if (uitmp != 0x40) {
ret = -ENODEV;
- goto err;
+ goto err_kfree;
}
/* put sleep as chip seems to be in normal mode by default */
- ret = regmap_write(s->regmap, 0x00, 0x00);
+ ret = regmap_write(dev->regmap, 0x00, 0x00);
if (ret)
- goto err;
+ goto err_kfree;
#if IS_ENABLED(CONFIG_VIDEO_V4L2)
/* Register controls */
- v4l2_ctrl_handler_init(&s->hdl, 9);
- s->bandwidth_auto = v4l2_ctrl_new_std(&s->hdl, &e4000_ctrl_ops,
+ v4l2_ctrl_handler_init(&dev->hdl, 9);
+ dev->bandwidth_auto = v4l2_ctrl_new_std(&dev->hdl, &e4000_ctrl_ops,
V4L2_CID_RF_TUNER_BANDWIDTH_AUTO, 0, 1, 1, 1);
- s->bandwidth = v4l2_ctrl_new_std(&s->hdl, &e4000_ctrl_ops,
+ dev->bandwidth = v4l2_ctrl_new_std(&dev->hdl, &e4000_ctrl_ops,
V4L2_CID_RF_TUNER_BANDWIDTH, 4300000, 11000000, 100000, 4300000);
- v4l2_ctrl_auto_cluster(2, &s->bandwidth_auto, 0, false);
- s->lna_gain_auto = v4l2_ctrl_new_std(&s->hdl, &e4000_ctrl_ops,
+ v4l2_ctrl_auto_cluster(2, &dev->bandwidth_auto, 0, false);
+ dev->lna_gain_auto = v4l2_ctrl_new_std(&dev->hdl, &e4000_ctrl_ops,
V4L2_CID_RF_TUNER_LNA_GAIN_AUTO, 0, 1, 1, 1);
- s->lna_gain = v4l2_ctrl_new_std(&s->hdl, &e4000_ctrl_ops,
+ dev->lna_gain = v4l2_ctrl_new_std(&dev->hdl, &e4000_ctrl_ops,
V4L2_CID_RF_TUNER_LNA_GAIN, 0, 15, 1, 10);
- v4l2_ctrl_auto_cluster(2, &s->lna_gain_auto, 0, false);
- s->mixer_gain_auto = v4l2_ctrl_new_std(&s->hdl, &e4000_ctrl_ops,
+ v4l2_ctrl_auto_cluster(2, &dev->lna_gain_auto, 0, false);
+ dev->mixer_gain_auto = v4l2_ctrl_new_std(&dev->hdl, &e4000_ctrl_ops,
V4L2_CID_RF_TUNER_MIXER_GAIN_AUTO, 0, 1, 1, 1);
- s->mixer_gain = v4l2_ctrl_new_std(&s->hdl, &e4000_ctrl_ops,
+ dev->mixer_gain = v4l2_ctrl_new_std(&dev->hdl, &e4000_ctrl_ops,
V4L2_CID_RF_TUNER_MIXER_GAIN, 0, 1, 1, 1);
- v4l2_ctrl_auto_cluster(2, &s->mixer_gain_auto, 0, false);
- s->if_gain_auto = v4l2_ctrl_new_std(&s->hdl, &e4000_ctrl_ops,
+ v4l2_ctrl_auto_cluster(2, &dev->mixer_gain_auto, 0, false);
+ dev->if_gain_auto = v4l2_ctrl_new_std(&dev->hdl, &e4000_ctrl_ops,
V4L2_CID_RF_TUNER_IF_GAIN_AUTO, 0, 1, 1, 1);
- s->if_gain = v4l2_ctrl_new_std(&s->hdl, &e4000_ctrl_ops,
+ dev->if_gain = v4l2_ctrl_new_std(&dev->hdl, &e4000_ctrl_ops,
V4L2_CID_RF_TUNER_IF_GAIN, 0, 54, 1, 0);
- v4l2_ctrl_auto_cluster(2, &s->if_gain_auto, 0, false);
- s->pll_lock = v4l2_ctrl_new_std(&s->hdl, &e4000_ctrl_ops,
+ v4l2_ctrl_auto_cluster(2, &dev->if_gain_auto, 0, false);
+ dev->pll_lock = v4l2_ctrl_new_std(&dev->hdl, &e4000_ctrl_ops,
V4L2_CID_RF_TUNER_PLL_LOCK, 0, 1, 1, 0);
- if (s->hdl.error) {
- ret = s->hdl.error;
- dev_err(&s->client->dev, "Could not initialize controls\n");
- v4l2_ctrl_handler_free(&s->hdl);
- goto err;
+ 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;
}
- s->sd.ctrl_handler = &s->hdl;
+ dev->sd.ctrl_handler = &dev->hdl;
+ dev->f_frequency = bands[0].rangelow;
+ dev->f_bandwidth = dev->bandwidth->val;
+ v4l2_i2c_subdev_init(&dev->sd, client, &e4000_subdev_ops);
#endif
+ fe->tuner_priv = dev;
+ memcpy(&fe->ops.tuner_ops, &e4000_dvb_tuner_ops,
+ sizeof(fe->ops.tuner_ops));
+ v4l2_set_subdevdata(&dev->sd, client);
+ i2c_set_clientdata(client, &dev->sd);
- dev_info(&s->client->dev, "Elonics E4000 successfully identified\n");
-
- fe->tuner_priv = s;
- memcpy(&fe->ops.tuner_ops, &e4000_tuner_ops,
- sizeof(struct dvb_tuner_ops));
-
- v4l2_set_subdevdata(&s->sd, client);
- i2c_set_clientdata(client, &s->sd);
-
+ dev_info(&client->dev, "Elonics E4000 successfully identified\n");
return 0;
+err_kfree:
+ kfree(dev);
err:
- if (ret) {
- dev_dbg(&client->dev, "failed=%d\n", ret);
- kfree(s);
- }
-
+ dev_dbg(&client->dev, "failed=%d\n", ret);
return ret;
}
static int e4000_remove(struct i2c_client *client)
{
struct v4l2_subdev *sd = i2c_get_clientdata(client);
- struct e4000 *s = container_of(sd, struct e4000, sd);
- struct dvb_frontend *fe = s->fe;
+ struct e4000_dev *dev = container_of(sd, struct e4000_dev, sd);
dev_dbg(&client->dev, "\n");
#if IS_ENABLED(CONFIG_VIDEO_V4L2)
- v4l2_ctrl_handler_free(&s->hdl);
+ v4l2_ctrl_handler_free(&dev->hdl);
#endif
- memset(&fe->ops.tuner_ops, 0, sizeof(struct dvb_tuner_ops));
- fe->tuner_priv = NULL;
- kfree(s);
+ kfree(dev);
return 0;
}
-static const struct i2c_device_id e4000_id[] = {
+static const struct i2c_device_id e4000_id_table[] = {
{"e4000", 0},
{}
};
-MODULE_DEVICE_TABLE(i2c, e4000_id);
+MODULE_DEVICE_TABLE(i2c, e4000_id_table);
static struct i2c_driver e4000_driver = {
.driver = {
.owner = THIS_MODULE,
.name = "e4000",
+ .suppress_bind_attrs = true,
},
.probe = e4000_probe,
.remove = e4000_remove,
- .id_table = e4000_id,
+ .id_table = e4000_id_table,
};
module_i2c_driver(e4000_driver);
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-07-04 19:24:49 +0000