From e5fd91f1ef340da553f7a79da9540c3db711c937 Mon Sep 17 00:00:00 2001 From: AndrĂ© Fabian Silva Delgado Date: Tue, 8 Sep 2015 01:01:14 -0300 Subject: Linux-libre 4.2-gnu --- drivers/media/tuners/e4000.c | 592 +++++++++++++++++++++++++++---------------- 1 file changed, 373 insertions(+), 219 deletions(-) (limited to 'drivers/media/tuners/e4000.c') 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 -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, ®map_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, ®map_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); -- cgit v1.2.3-54-g00ecf