--- zzzz-none-000/linux-3.10.107/drivers/media/tuners/e4000.c 2017-06-27 09:49:32.000000000 +0000 +++ scorpion-7490-727/linux-3.10.107/drivers/media/tuners/e4000.c 2021-02-04 17:41:59.000000000 +0000 @@ -20,406 +20,747 @@ #include "e4000_priv.h" -/* Max transfer size done by I2C transfer functions */ -#define MAX_XFER_SIZE 64 - -/* write multiple registers */ -static int e4000_wr_regs(struct e4000_priv *priv, u8 reg, u8 *val, int len) -{ - int ret; - u8 buf[MAX_XFER_SIZE]; - struct i2c_msg msg[1] = { - { - .addr = priv->cfg->i2c_addr, - .flags = 0, - .len = 1 + len, - .buf = buf, - } - }; - - if (1 + len > sizeof(buf)) { - dev_warn(&priv->i2c->dev, - "%s: i2c wr reg=%04x: len=%d is too big!\n", - KBUILD_MODNAME, reg, len); - return -EINVAL; - } - - buf[0] = reg; - memcpy(&buf[1], val, len); - - ret = i2c_transfer(priv->i2c, msg, 1); - if (ret == 1) { - ret = 0; - } else { - dev_warn(&priv->i2c->dev, "%s: i2c wr failed=%d reg=%02x " \ - "len=%d\n", KBUILD_MODNAME, ret, reg, len); - ret = -EREMOTEIO; - } - return ret; -} - -/* read multiple registers */ -static int e4000_rd_regs(struct e4000_priv *priv, u8 reg, u8 *val, int len) +static int e4000_init(struct e4000_dev *dev) { + struct i2c_client *client = dev->client; int ret; - u8 buf[MAX_XFER_SIZE]; - struct i2c_msg msg[2] = { - { - .addr = priv->cfg->i2c_addr, - .flags = 0, - .len = 1, - .buf = ®, - }, { - .addr = priv->cfg->i2c_addr, - .flags = I2C_M_RD, - .len = len, - .buf = buf, - } - }; - if (len > sizeof(buf)) { - dev_warn(&priv->i2c->dev, - "%s: i2c rd reg=%04x: len=%d is too big!\n", - KBUILD_MODNAME, reg, len); - return -EINVAL; - } - - ret = i2c_transfer(priv->i2c, msg, 2); - if (ret == 2) { - memcpy(val, buf, len); - ret = 0; - } else { - dev_warn(&priv->i2c->dev, "%s: i2c rd failed=%d reg=%02x " \ - "len=%d\n", KBUILD_MODNAME, ret, reg, len); - ret = -EREMOTEIO; - } - - return ret; -} - -/* write single register */ -static int e4000_wr_reg(struct e4000_priv *priv, u8 reg, u8 val) -{ - return e4000_wr_regs(priv, reg, &val, 1); -} - -/* read single register */ -static int e4000_rd_reg(struct e4000_priv *priv, u8 reg, u8 *val) -{ - return e4000_rd_regs(priv, reg, val, 1); -} - -static int e4000_init(struct dvb_frontend *fe) -{ - struct e4000_priv *priv = fe->tuner_priv; - int ret; - - dev_dbg(&priv->i2c->dev, "%s:\n", __func__); - - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 1); - - /* dummy I2C to ensure I2C wakes up */ - ret = e4000_wr_reg(priv, 0x02, 0x40); + dev_dbg(&client->dev, "\n"); /* reset */ - ret = e4000_wr_reg(priv, 0x00, 0x01); - if (ret < 0) + ret = regmap_write(dev->regmap, 0x00, 0x01); + if (ret) goto err; /* disable output clock */ - ret = e4000_wr_reg(priv, 0x06, 0x00); - if (ret < 0) + ret = regmap_write(dev->regmap, 0x06, 0x00); + if (ret) goto err; - ret = e4000_wr_reg(priv, 0x7a, 0x96); - if (ret < 0) + ret = regmap_write(dev->regmap, 0x7a, 0x96); + if (ret) goto err; /* configure gains */ - ret = e4000_wr_regs(priv, 0x7e, "\x01\xfe", 2); - if (ret < 0) + ret = regmap_bulk_write(dev->regmap, 0x7e, "\x01\xfe", 2); + if (ret) goto err; - ret = e4000_wr_reg(priv, 0x82, 0x00); - if (ret < 0) + ret = regmap_write(dev->regmap, 0x82, 0x00); + if (ret) goto err; - ret = e4000_wr_reg(priv, 0x24, 0x05); - if (ret < 0) + ret = regmap_write(dev->regmap, 0x24, 0x05); + if (ret) goto err; - ret = e4000_wr_regs(priv, 0x87, "\x20\x01", 2); - if (ret < 0) + ret = regmap_bulk_write(dev->regmap, 0x87, "\x20\x01", 2); + if (ret) goto err; - ret = e4000_wr_regs(priv, 0x9f, "\x7f\x07", 2); - if (ret < 0) + ret = regmap_bulk_write(dev->regmap, 0x9f, "\x7f\x07", 2); + if (ret) goto err; - /* - * TODO: Implement DC offset control correctly. - * DC offsets has quite much effect for received signal quality in case - * of direct conversion tuners (Zero-IF). Surely we will now lose few - * decimals or even decibels from SNR... - */ /* DC offset control */ - ret = e4000_wr_reg(priv, 0x2d, 0x0c); - if (ret < 0) + ret = regmap_write(dev->regmap, 0x2d, 0x1f); + if (ret) + goto err; + + ret = regmap_bulk_write(dev->regmap, 0x70, "\x01\x01", 2); + if (ret) goto err; /* gain control */ - ret = e4000_wr_reg(priv, 0x1a, 0x17); - if (ret < 0) + ret = regmap_write(dev->regmap, 0x1a, 0x17); + if (ret) goto err; - ret = e4000_wr_reg(priv, 0x1f, 0x1a); - if (ret < 0) + ret = regmap_write(dev->regmap, 0x1f, 0x1a); + if (ret) goto err; - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 0); + dev->active = true; return 0; err: - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 0); - - dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret); + 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_priv *priv = fe->tuner_priv; + struct i2c_client *client = dev->client; int ret; - dev_dbg(&priv->i2c->dev, "%s:\n", __func__); + dev_dbg(&client->dev, "\n"); - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 1); + dev->active = false; - ret = e4000_wr_reg(priv, 0x00, 0x00); - if (ret < 0) + ret = regmap_write(dev->regmap, 0x00, 0x00); + if (ret) goto err; - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 0); - return 0; err: - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 0); - - dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret); + 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_priv *priv = fe->tuner_priv; - struct dtv_frontend_properties *c = &fe->dtv_property_cache; - int ret, i, sigma_delta; - unsigned int f_VCO; - u8 buf[5]; - - dev_dbg(&priv->i2c->dev, "%s: delivery_system=%d frequency=%d " \ - "bandwidth_hz=%d\n", __func__, - c->delivery_system, c->frequency, c->bandwidth_hz); - - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 1); + 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]; + + if (!dev->active) { + dev_dbg(&client->dev, "tuner is sleeping\n"); + return 0; + } /* gain control manual */ - ret = e4000_wr_reg(priv, 0x1a, 0x00); - if (ret < 0) + ret = regmap_write(dev->regmap, 0x1a, 0x00); + if (ret) goto err; - /* PLL */ + /* + * 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)) + if (i == ARRAY_SIZE(e4000_pll_lut)) { + ret = -EINVAL; goto err; + } - /* - * Note: Currently f_VCO overflows when c->frequency is 1 073 741 824 Hz - * or more. - */ - f_VCO = c->frequency * e4000_pll_lut[i].mul; - sigma_delta = 0x10000UL * (f_VCO % priv->cfg->clock) / priv->cfg->clock; - buf[0] = f_VCO / priv->cfg->clock; - 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(&priv->i2c->dev, "%s: f_VCO=%u pll div=%d sigma_delta=%04x\n", - __func__, f_VCO, buf[0], sigma_delta); - - ret = e4000_wr_regs(priv, 0x09, buf, 5); - if (ret < 0) + 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)) + if (i == ARRAY_SIZE(e400_lna_filter_lut)) { + ret = -EINVAL; goto err; + } - ret = e4000_wr_reg(priv, 0x10, e400_lna_filter_lut[i].val); - if (ret < 0) + 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)) + if (i == ARRAY_SIZE(e4000_if_filter_lut)) { + ret = -EINVAL; goto err; + } buf[0] = e4000_if_filter_lut[i].reg11_val; buf[1] = e4000_if_filter_lut[i].reg12_val; - ret = e4000_wr_regs(priv, 0x11, buf, 2); - if (ret < 0) + 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; + } - if (i == ARRAY_SIZE(e4000_band_lut)) + ret = regmap_write(dev->regmap, 0x07, e4000_band_lut[i].reg07_val); + if (ret) goto err; - ret = e4000_wr_reg(priv, 0x07, e4000_band_lut[i].reg07_val); - if (ret < 0) + ret = regmap_write(dev->regmap, 0x78, e4000_band_lut[i].reg78_val); + if (ret) goto err; - ret = e4000_wr_reg(priv, 0x78, e4000_band_lut[i].reg78_val); - if (ret < 0) + /* DC offset */ + for (i = 0; i < 4; i++) { + if (i == 0) + ret = regmap_bulk_write(dev->regmap, 0x15, "\x00\x7e\x24", 3); + else if (i == 1) + ret = regmap_bulk_write(dev->regmap, 0x15, "\x00\x7f", 2); + else if (i == 2) + ret = regmap_bulk_write(dev->regmap, 0x15, "\x01", 1); + else + ret = regmap_bulk_write(dev->regmap, 0x16, "\x7e", 1); + + if (ret) + goto err; + + ret = regmap_write(dev->regmap, 0x29, 0x01); + if (ret) + goto err; + + ret = regmap_bulk_read(dev->regmap, 0x2a, buf, 3); + if (ret) + goto err; + + i_data[i] = (((buf[2] >> 0) & 0x3) << 6) | (buf[0] & 0x3f); + q_data[i] = (((buf[2] >> 4) & 0x3) << 6) | (buf[1] & 0x3f); + } + + swap(q_data[2], q_data[3]); + swap(i_data[2], i_data[3]); + + ret = regmap_bulk_write(dev->regmap, 0x50, q_data, 4); + if (ret) + goto err; + + ret = regmap_bulk_write(dev->regmap, 0x60, i_data, 4); + if (ret) goto err; /* gain control auto */ - ret = e4000_wr_reg(priv, 0x1a, 0x17); - if (ret < 0) + ret = regmap_write(dev->regmap, 0x1a, 0x17); + if (ret) goto err; - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 0); + 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) + 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_s_tuner(struct v4l2_subdev *sd, const 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); + return 0; +} + +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; +} + +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_dev *dev = fe->tuner_priv; + struct i2c_client *client = dev->client; + int ret; + u8 u8tmp; + + 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 (dev->lna_gain_auto->val && dev->if_gain_auto->cur.val) + u8tmp = 0x17; + else if (dev->lna_gain_auto->val) + u8tmp = 0x19; + else if (dev->if_gain_auto->cur.val) + u8tmp = 0x16; + else + u8tmp = 0x10; + + ret = regmap_write(dev->regmap, 0x1a, u8tmp); + if (ret) + goto err; + + if (dev->lna_gain_auto->val == false) { + ret = regmap_write(dev->regmap, 0x14, dev->lna_gain->val); + if (ret) + goto err; + } return 0; err: - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 0); + dev_dbg(&client->dev, "failed=%d\n", ret); + return ret; +} + +static int e4000_set_mixer_gain(struct dvb_frontend *fe) +{ + struct e4000_dev *dev = fe->tuner_priv; + struct i2c_client *client = dev->client; + int ret; + u8 u8tmp; + + 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 (dev->mixer_gain_auto->val) + u8tmp = 0x15; + else + u8tmp = 0x14; - dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret); + ret = regmap_write(dev->regmap, 0x20, u8tmp); + if (ret) + goto err; + + if (dev->mixer_gain_auto->val == false) { + ret = regmap_write(dev->regmap, 0x15, dev->mixer_gain->val); + if (ret) + goto err; + } + + return 0; +err: + dev_dbg(&client->dev, "failed=%d\n", ret); return ret; } -static int e4000_get_if_frequency(struct dvb_frontend *fe, u32 *frequency) +static int e4000_set_if_gain(struct dvb_frontend *fe) { - struct e4000_priv *priv = 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(&priv->i2c->dev, "%s:\n", __func__); + 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 (dev->if_gain_auto->val && dev->lna_gain_auto->cur.val) + u8tmp = 0x17; + else if (dev->lna_gain_auto->cur.val) + u8tmp = 0x19; + else if (dev->if_gain_auto->val) + u8tmp = 0x16; + else + u8tmp = 0x10; + + ret = regmap_write(dev->regmap, 0x1a, u8tmp); + if (ret) + goto err; + + 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; + } - *frequency = 0; /* Zero-IF */ + return 0; +err: + dev_dbg(&client->dev, "failed=%d\n", ret); + return ret; +} + +static int e4000_pll_lock(struct dvb_frontend *fe) +{ + struct e4000_dev *dev = fe->tuner_priv; + struct i2c_client *client = dev->client; + int ret; + unsigned int uitmp; + + ret = regmap_read(dev->regmap, 0x07, &uitmp); + if (ret) + goto err; + + dev->pll_lock->val = (uitmp & 0x01); return 0; +err: + dev_dbg(&client->dev, "failed=%d\n", ret); + return ret; } -static int e4000_release(struct dvb_frontend *fe) +static int e4000_g_volatile_ctrl(struct v4l2_ctrl *ctrl) { - struct e4000_priv *priv = fe->tuner_priv; + struct e4000_dev *dev = container_of(ctrl->handler, struct e4000_dev, hdl); + struct i2c_client *client = dev->client; + int ret; - dev_dbg(&priv->i2c->dev, "%s:\n", __func__); + if (!dev->active) + return 0; - kfree(fe->tuner_priv); + switch (ctrl->id) { + case V4L2_CID_RF_TUNER_PLL_LOCK: + ret = e4000_pll_lock(dev->fe); + break; + default: + dev_dbg(&client->dev, "unknown ctrl: id=%d name=%s\n", + ctrl->id, ctrl->name); + ret = -EINVAL; + } + return ret; +} + +static int e4000_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct e4000_dev *dev = container_of(ctrl->handler, struct e4000_dev, hdl); + struct i2c_client *client = dev->client; + int ret; + + if (!dev->active) + return 0; + + 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 = 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(dev->fe); + break; + case V4L2_CID_RF_TUNER_MIXER_GAIN_AUTO: + case V4L2_CID_RF_TUNER_MIXER_GAIN: + 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(dev->fe); + break; + default: + dev_dbg(&client->dev, "unknown ctrl: id=%d name=%s\n", + ctrl->id, ctrl->name); + ret = -EINVAL; + } + + return ret; +} + +static const struct v4l2_ctrl_ops e4000_ctrl_ops = { + .g_volatile_ctrl = e4000_g_volatile_ctrl, + .s_ctrl = e4000_s_ctrl, +}; +#endif + +/* + * 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_tuner_ops = { +static const struct dvb_tuner_ops e4000_dvb_tuner_ops = { .info = { .name = "Elonics E4000", .frequency_min = 174000000, .frequency_max = 862000000, }, - .release = e4000_release, + .init = e4000_dvb_init, + .sleep = e4000_dvb_sleep, + .set_params = e4000_dvb_set_params, - .init = e4000_init, - .sleep = e4000_sleep, - .set_params = e4000_set_params, - - .get_if_frequency = e4000_get_if_frequency, + .get_if_frequency = e4000_dvb_get_if_frequency, }; -struct dvb_frontend *e4000_attach(struct dvb_frontend *fe, - struct i2c_adapter *i2c, const struct e4000_config *cfg) +static int e4000_probe(struct i2c_client *client, + const struct i2c_device_id *id) { - struct e4000_priv *priv; + struct e4000_dev *dev; + struct e4000_config *cfg = client->dev.platform_data; + struct dvb_frontend *fe = cfg->fe; int ret; - u8 chip_id; - - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 1); + unsigned int uitmp; + static const struct regmap_config regmap_config = { + .reg_bits = 8, + .val_bits = 8, + }; - priv = kzalloc(sizeof(struct e4000_priv), GFP_KERNEL); - if (!priv) { + dev = kzalloc(sizeof(*dev), GFP_KERNEL); + if (!dev) { ret = -ENOMEM; - dev_err(&i2c->dev, "%s: kzalloc() failed\n", KBUILD_MODNAME); goto err; } - priv->cfg = cfg; - priv->i2c = i2c; + 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 = e4000_rd_reg(priv, 0x02, &chip_id); - if (ret < 0) - goto err; - - dev_dbg(&priv->i2c->dev, "%s: chip_id=%02x\n", __func__, chip_id); - - if (chip_id != 0x40) - goto err; + ret = regmap_read(dev->regmap, 0x02, &uitmp); + if (ret) + goto err_kfree; + + dev_dbg(&client->dev, "chip id=%02x\n", uitmp); + + if (uitmp != 0x40) { + ret = -ENODEV; + goto err_kfree; + } /* put sleep as chip seems to be in normal mode by default */ - ret = e4000_wr_reg(priv, 0x00, 0x00); - if (ret < 0) - goto err; + ret = regmap_write(dev->regmap, 0x00, 0x00); + if (ret) + goto err_kfree; + +#if IS_ENABLED(CONFIG_VIDEO_V4L2) + /* Register controls */ + 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); + 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, &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); + 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, &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); + 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, &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); + 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, &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 (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_info(&priv->i2c->dev, - "%s: Elonics E4000 successfully identified\n", - KBUILD_MODNAME); + 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); - fe->tuner_priv = priv; - memcpy(&fe->ops.tuner_ops, &e4000_tuner_ops, - sizeof(struct dvb_tuner_ops)); + dev_info(&client->dev, "Elonics E4000 successfully identified\n"); + return 0; +err_kfree: + kfree(dev); +err: + 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_dev *dev = container_of(sd, struct e4000_dev, sd); - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 0); + dev_dbg(&client->dev, "\n"); - return fe; -err: - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 0); +#if IS_ENABLED(CONFIG_VIDEO_V4L2) + v4l2_ctrl_handler_free(&dev->hdl); +#endif + kfree(dev); - dev_dbg(&i2c->dev, "%s: failed=%d\n", __func__, ret); - kfree(priv); - return NULL; + return 0; } -EXPORT_SYMBOL(e4000_attach); + +static const struct i2c_device_id e4000_id_table[] = { + {"e4000", 0}, + {} +}; +MODULE_DEVICE_TABLE(i2c, e4000_id_table); + +static struct i2c_driver e4000_driver = { + .driver = { + .name = "e4000", + .suppress_bind_attrs = true, + }, + .probe = e4000_probe, + .remove = e4000_remove, + .id_table = e4000_id_table, +}; + +module_i2c_driver(e4000_driver); MODULE_DESCRIPTION("Elonics E4000 silicon tuner driver"); MODULE_AUTHOR("Antti Palosaari ");