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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.c608
1 files changed, 378 insertions, 230 deletions
diff --git a/drivers/media/tuners/e4000.c b/drivers/media/tuners/e4000.c
index 40c1da707d15..90d93348f20c 100644
--- a/drivers/media/tuners/e4000.c
+++ b/drivers/media/tuners/e4000.c
@@ -21,220 +21,113 @@
#include "e4000_priv.h"
#include <linux/math64.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)
-{
- int ret;
- u8 buf[MAX_XFER_SIZE];
- struct i2c_msg msg[2] = {
- {
- .addr = priv->cfg->i2c_addr,
- .flags = 0,
- .len = 1,
- .buf = &reg,
- }, {
- .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;
+ struct e4000 *s = 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);
+ dev_dbg(&s->client->dev, "%s:\n", __func__);
/* dummy I2C to ensure I2C wakes up */
- ret = e4000_wr_reg(priv, 0x02, 0x40);
+ ret = regmap_write(s->regmap, 0x02, 0x40);
/* reset */
- ret = e4000_wr_reg(priv, 0x00, 0x01);
- if (ret < 0)
+ ret = regmap_write(s->regmap, 0x00, 0x01);
+ if (ret)
goto err;
/* disable output clock */
- ret = e4000_wr_reg(priv, 0x06, 0x00);
- if (ret < 0)
+ ret = regmap_write(s->regmap, 0x06, 0x00);
+ if (ret)
goto err;
- ret = e4000_wr_reg(priv, 0x7a, 0x96);
- if (ret < 0)
+ ret = regmap_write(s->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(s->regmap, 0x7e, "\x01\xfe", 2);
+ if (ret)
goto err;
- ret = e4000_wr_reg(priv, 0x82, 0x00);
- if (ret < 0)
+ ret = regmap_write(s->regmap, 0x82, 0x00);
+ if (ret)
goto err;
- ret = e4000_wr_reg(priv, 0x24, 0x05);
- if (ret < 0)
+ ret = regmap_write(s->regmap, 0x24, 0x05);
+ if (ret)
goto err;
- ret = e4000_wr_regs(priv, 0x87, "\x20\x01", 2);
- if (ret < 0)
+ ret = regmap_bulk_write(s->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(s->regmap, 0x9f, "\x7f\x07", 2);
+ if (ret)
goto err;
/* DC offset control */
- ret = e4000_wr_reg(priv, 0x2d, 0x1f);
- if (ret < 0)
+ ret = regmap_write(s->regmap, 0x2d, 0x1f);
+ if (ret)
goto err;
- ret = e4000_wr_regs(priv, 0x70, "\x01\x01", 2);
- if (ret < 0)
+ ret = regmap_bulk_write(s->regmap, 0x70, "\x01\x01", 2);
+ if (ret)
goto err;
/* gain control */
- ret = e4000_wr_reg(priv, 0x1a, 0x17);
- if (ret < 0)
+ ret = regmap_write(s->regmap, 0x1a, 0x17);
+ if (ret)
goto err;
- ret = e4000_wr_reg(priv, 0x1f, 0x1a);
- if (ret < 0)
+ ret = regmap_write(s->regmap, 0x1f, 0x1a);
+ if (ret)
goto err;
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 0);
-
- return 0;
+ s->active = true;
err:
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 0);
+ if (ret)
+ dev_dbg(&s->client->dev, "%s: failed=%d\n", __func__, ret);
- dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
return ret;
}
static int e4000_sleep(struct dvb_frontend *fe)
{
- struct e4000_priv *priv = fe->tuner_priv;
+ struct e4000 *s = fe->tuner_priv;
int ret;
- dev_dbg(&priv->i2c->dev, "%s:\n", __func__);
+ dev_dbg(&s->client->dev, "%s:\n", __func__);
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 1);
+ s->active = false;
- ret = e4000_wr_reg(priv, 0x00, 0x00);
- if (ret < 0)
+ ret = regmap_write(s->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);
+ if (ret)
+ dev_dbg(&s->client->dev, "%s: failed=%d\n", __func__, ret);
- dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
return ret;
}
static int e4000_set_params(struct dvb_frontend *fe)
{
- struct e4000_priv *priv = fe->tuner_priv;
+ struct e4000 *s = fe->tuner_priv;
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
int ret, i, sigma_delta;
- unsigned int f_vco;
+ unsigned int pll_n, pll_f;
+ u64 f_vco;
u8 buf[5], i_data[4], q_data[4];
- dev_dbg(&priv->i2c->dev,
- "%s: delivery_system=%d frequency=%d bandwidth_hz=%d\n",
+ dev_dbg(&s->client->dev,
+ "%s: delivery_system=%d frequency=%u bandwidth_hz=%u\n",
__func__, c->delivery_system, c->frequency,
c->bandwidth_hz);
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 1);
-
/* gain control manual */
- ret = e4000_wr_reg(priv, 0x1a, 0x00);
- if (ret < 0)
+ ret = regmap_write(s->regmap, 0x1a, 0x00);
+ if (ret)
goto err;
/* PLL */
@@ -248,23 +141,21 @@ static int e4000_set_params(struct dvb_frontend *fe)
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 = div_u64(0x10000ULL * (f_vco % priv->cfg->clock), priv->cfg->clock);
- buf[0] = f_vco / priv->cfg->clock;
+ 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;
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",
+ dev_dbg(&s->client->dev,
+ "%s: f_vco=%llu 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)
+ ret = regmap_bulk_write(s->regmap, 0x09, buf, 5);
+ if (ret)
goto err;
/* LNA filter (RF filter) */
@@ -278,8 +169,8 @@ static int e4000_set_params(struct dvb_frontend *fe)
goto err;
}
- ret = e4000_wr_reg(priv, 0x10, e400_lna_filter_lut[i].val);
- if (ret < 0)
+ ret = regmap_write(s->regmap, 0x10, e400_lna_filter_lut[i].val);
+ if (ret)
goto err;
/* IF filters */
@@ -296,8 +187,8 @@ 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 = e4000_wr_regs(priv, 0x11, buf, 2);
- if (ret < 0)
+ ret = regmap_bulk_write(s->regmap, 0x11, buf, 2);
+ if (ret)
goto err;
/* frequency band */
@@ -311,34 +202,34 @@ static int e4000_set_params(struct dvb_frontend *fe)
goto err;
}
- ret = e4000_wr_reg(priv, 0x07, e4000_band_lut[i].reg07_val);
- if (ret < 0)
+ ret = regmap_write(s->regmap, 0x07, e4000_band_lut[i].reg07_val);
+ if (ret)
goto err;
- ret = e4000_wr_reg(priv, 0x78, e4000_band_lut[i].reg78_val);
- if (ret < 0)
+ ret = regmap_write(s->regmap, 0x78, e4000_band_lut[i].reg78_val);
+ if (ret)
goto err;
/* DC offset */
for (i = 0; i < 4; i++) {
if (i == 0)
- ret = e4000_wr_regs(priv, 0x15, "\x00\x7e\x24", 3);
+ ret = regmap_bulk_write(s->regmap, 0x15, "\x00\x7e\x24", 3);
else if (i == 1)
- ret = e4000_wr_regs(priv, 0x15, "\x00\x7f", 2);
+ ret = regmap_bulk_write(s->regmap, 0x15, "\x00\x7f", 2);
else if (i == 2)
- ret = e4000_wr_regs(priv, 0x15, "\x01", 1);
+ ret = regmap_bulk_write(s->regmap, 0x15, "\x01", 1);
else
- ret = e4000_wr_regs(priv, 0x16, "\x7e", 1);
+ ret = regmap_bulk_write(s->regmap, 0x16, "\x7e", 1);
- if (ret < 0)
+ if (ret)
goto err;
- ret = e4000_wr_reg(priv, 0x29, 0x01);
- if (ret < 0)
+ ret = regmap_write(s->regmap, 0x29, 0x01);
+ if (ret)
goto err;
- ret = e4000_rd_regs(priv, 0x2a, buf, 3);
- if (ret < 0)
+ ret = regmap_bulk_read(s->regmap, 0x2a, buf, 3);
+ if (ret)
goto err;
i_data[i] = (((buf[2] >> 0) & 0x3) << 6) | (buf[0] & 0x3f);
@@ -348,53 +239,226 @@ static int e4000_set_params(struct dvb_frontend *fe)
swap(q_data[2], q_data[3]);
swap(i_data[2], i_data[3]);
- ret = e4000_wr_regs(priv, 0x50, q_data, 4);
- if (ret < 0)
+ ret = regmap_bulk_write(s->regmap, 0x50, q_data, 4);
+ if (ret)
goto err;
- ret = e4000_wr_regs(priv, 0x60, i_data, 4);
- if (ret < 0)
+ ret = regmap_bulk_write(s->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(s->regmap, 0x1a, 0x17);
+ 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);
+ if (ret)
+ dev_dbg(&s->client->dev, "%s: failed=%d\n", __func__, ret);
- dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
return ret;
}
static int e4000_get_if_frequency(struct dvb_frontend *fe, u32 *frequency)
{
- struct e4000_priv *priv = fe->tuner_priv;
+ struct e4000 *s = fe->tuner_priv;
- dev_dbg(&priv->i2c->dev, "%s:\n", __func__);
+ dev_dbg(&s->client->dev, "%s:\n", __func__);
*frequency = 0; /* Zero-IF */
return 0;
}
-static int e4000_release(struct dvb_frontend *fe)
+#if IS_ENABLED(CONFIG_VIDEO_V4L2)
+static int e4000_set_lna_gain(struct dvb_frontend *fe)
{
- struct e4000_priv *priv = fe->tuner_priv;
+ struct e4000 *s = fe->tuner_priv;
+ int ret;
+ u8 u8tmp;
+
+ dev_dbg(&s->client->dev, "%s: lna auto=%d->%d val=%d->%d\n",
+ __func__, s->lna_gain_auto->cur.val,
+ s->lna_gain_auto->val, s->lna_gain->cur.val,
+ s->lna_gain->val);
+
+ if (s->lna_gain_auto->val && s->if_gain_auto->cur.val)
+ u8tmp = 0x17;
+ else if (s->lna_gain_auto->val)
+ u8tmp = 0x19;
+ else if (s->if_gain_auto->cur.val)
+ u8tmp = 0x16;
+ else
+ u8tmp = 0x10;
+
+ ret = regmap_write(s->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 (ret)
+ goto err;
+ }
+err:
+ if (ret)
+ dev_dbg(&s->client->dev, "%s: failed=%d\n", __func__, ret);
- dev_dbg(&priv->i2c->dev, "%s:\n", __func__);
+ return ret;
+}
- kfree(fe->tuner_priv);
+static int e4000_set_mixer_gain(struct dvb_frontend *fe)
+{
+ struct e4000 *s = fe->tuner_priv;
+ int ret;
+ u8 u8tmp;
- return 0;
+ dev_dbg(&s->client->dev, "%s: mixer auto=%d->%d val=%d->%d\n",
+ __func__, s->mixer_gain_auto->cur.val,
+ s->mixer_gain_auto->val, s->mixer_gain->cur.val,
+ s->mixer_gain->val);
+
+ if (s->mixer_gain_auto->val)
+ u8tmp = 0x15;
+ else
+ u8tmp = 0x14;
+
+ ret = regmap_write(s->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 (ret)
+ goto err;
+ }
+err:
+ if (ret)
+ dev_dbg(&s->client->dev, "%s: failed=%d\n", __func__, ret);
+
+ return ret;
}
+static int e4000_set_if_gain(struct dvb_frontend *fe)
+{
+ struct e4000 *s = fe->tuner_priv;
+ int ret;
+ u8 buf[2];
+ u8 u8tmp;
+
+ dev_dbg(&s->client->dev, "%s: if auto=%d->%d val=%d->%d\n",
+ __func__, s->if_gain_auto->cur.val,
+ s->if_gain_auto->val, s->if_gain->cur.val,
+ s->if_gain->val);
+
+ if (s->if_gain_auto->val && s->lna_gain_auto->cur.val)
+ u8tmp = 0x17;
+ else if (s->lna_gain_auto->cur.val)
+ u8tmp = 0x19;
+ else if (s->if_gain_auto->val)
+ u8tmp = 0x16;
+ else
+ u8tmp = 0x10;
+
+ ret = regmap_write(s->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 (ret)
+ goto err;
+ }
+err:
+ if (ret)
+ dev_dbg(&s->client->dev, "%s: failed=%d\n", __func__, ret);
+
+ return ret;
+}
+
+static int e4000_pll_lock(struct dvb_frontend *fe)
+{
+ struct e4000 *s = fe->tuner_priv;
+ int ret;
+ unsigned int utmp;
+
+ ret = regmap_read(s->regmap, 0x07, &utmp);
+ if (ret)
+ goto err;
+
+ s->pll_lock->val = (utmp & 0x01);
+err:
+ if (ret)
+ dev_dbg(&s->client->dev, "%s: failed=%d\n", __func__, ret);
+
+ return ret;
+}
+
+static int e4000_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct e4000 *s = container_of(ctrl->handler, struct e4000, hdl);
+ int ret;
+
+ if (s->active == false)
+ return 0;
+
+ switch (ctrl->id) {
+ case V4L2_CID_RF_TUNER_PLL_LOCK:
+ ret = e4000_pll_lock(s->fe);
+ break;
+ default:
+ dev_dbg(&s->client->dev, "%s: unknown ctrl: id=%d name=%s\n",
+ __func__, ctrl->id, ctrl->name);
+ ret = -EINVAL;
+ }
+
+ return ret;
+}
+
+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;
+ int ret;
+
+ if (s->active == false)
+ 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);
+ break;
+ case V4L2_CID_RF_TUNER_LNA_GAIN_AUTO:
+ case V4L2_CID_RF_TUNER_LNA_GAIN:
+ ret = e4000_set_lna_gain(s->fe);
+ break;
+ case V4L2_CID_RF_TUNER_MIXER_GAIN_AUTO:
+ case V4L2_CID_RF_TUNER_MIXER_GAIN:
+ ret = e4000_set_mixer_gain(s->fe);
+ break;
+ case V4L2_CID_RF_TUNER_IF_GAIN_AUTO:
+ case V4L2_CID_RF_TUNER_IF_GAIN:
+ ret = e4000_set_if_gain(s->fe);
+ break;
+ default:
+ dev_dbg(&s->client->dev, "%s: unknown ctrl: id=%d name=%s\n",
+ __func__, 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
+
static const struct dvb_tuner_ops e4000_tuner_ops = {
.info = {
.name = "Elonics E4000",
@@ -402,8 +466,6 @@ static const struct dvb_tuner_ops e4000_tuner_ops = {
.frequency_max = 862000000,
},
- .release = e4000_release,
-
.init = e4000_init,
.sleep = e4000_sleep,
.set_params = e4000_set_params,
@@ -411,62 +473,148 @@ static const struct dvb_tuner_ops e4000_tuner_ops = {
.get_if_frequency = e4000_get_if_frequency,
};
-struct dvb_frontend *e4000_attach(struct dvb_frontend *fe,
- struct i2c_adapter *i2c, const struct e4000_config *cfg)
+/*
+ * 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)
{
- struct e4000_priv *priv;
+ struct e4000_config *cfg = client->dev.platform_data;
+ struct dvb_frontend *fe = cfg->fe;
+ struct e4000 *s;
int ret;
- u8 chip_id;
-
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 1);
+ unsigned int utmp;
+ static const struct regmap_config regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .max_register = 0xff,
+ };
- priv = kzalloc(sizeof(struct e4000_priv), GFP_KERNEL);
- if (!priv) {
+ s = kzalloc(sizeof(struct e4000), GFP_KERNEL);
+ if (!s) {
ret = -ENOMEM;
- dev_err(&i2c->dev, "%s: kzalloc() failed\n", KBUILD_MODNAME);
+ dev_err(&client->dev, "%s: kzalloc() failed\n", KBUILD_MODNAME);
goto err;
}
- priv->cfg = cfg;
- priv->i2c = i2c;
+ 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;
+ }
/* check if the tuner is there */
- ret = e4000_rd_reg(priv, 0x02, &chip_id);
- if (ret < 0)
+ ret = regmap_read(s->regmap, 0x02, &utmp);
+ if (ret)
goto err;
- dev_dbg(&priv->i2c->dev, "%s: chip_id=%02x\n", __func__, chip_id);
+ dev_dbg(&s->client->dev, "%s: chip id=%02x\n", __func__, utmp);
- if (chip_id != 0x40)
+ if (utmp != 0x40) {
+ ret = -ENODEV;
goto err;
+ }
/* put sleep as chip seems to be in normal mode by default */
- ret = e4000_wr_reg(priv, 0x00, 0x00);
- if (ret < 0)
+ ret = regmap_write(s->regmap, 0x00, 0x00);
+ if (ret)
goto err;
- dev_info(&priv->i2c->dev,
+#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_CID_RF_TUNER_BANDWIDTH_AUTO, 0, 1, 1, 1);
+ s->bandwidth = v4l2_ctrl_new_std(&s->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_CID_RF_TUNER_LNA_GAIN_AUTO, 0, 1, 1, 1);
+ s->lna_gain = v4l2_ctrl_new_std(&s->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_CID_RF_TUNER_MIXER_GAIN_AUTO, 0, 1, 1, 1);
+ s->mixer_gain = v4l2_ctrl_new_std(&s->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_CID_RF_TUNER_IF_GAIN_AUTO, 0, 1, 1, 1);
+ s->if_gain = v4l2_ctrl_new_std(&s->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_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;
+ }
+
+ s->sd.ctrl_handler = &s->hdl;
+#endif
+
+ dev_info(&s->client->dev,
"%s: Elonics E4000 successfully identified\n",
KBUILD_MODNAME);
- fe->tuner_priv = priv;
+ fe->tuner_priv = s;
memcpy(&fe->ops.tuner_ops, &e4000_tuner_ops,
sizeof(struct dvb_tuner_ops));
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 0);
+ v4l2_set_subdevdata(&s->sd, client);
+ i2c_set_clientdata(client, &s->sd);
- return fe;
+ return 0;
err:
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 0);
+ if (ret) {
+ dev_dbg(&client->dev, "%s: failed=%d\n", __func__, ret);
+ kfree(s);
+ }
+
+ 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;
+
+ dev_dbg(&client->dev, "%s:\n", __func__);
- dev_dbg(&i2c->dev, "%s: failed=%d\n", __func__, ret);
- kfree(priv);
- return NULL;
+#if IS_ENABLED(CONFIG_VIDEO_V4L2)
+ v4l2_ctrl_handler_free(&s->hdl);
+#endif
+ memset(&fe->ops.tuner_ops, 0, sizeof(struct dvb_tuner_ops));
+ fe->tuner_priv = NULL;
+ kfree(s);
+
+ return 0;
}
-EXPORT_SYMBOL(e4000_attach);
+
+static const struct i2c_device_id e4000_id[] = {
+ {"e4000", 0},
+ {}
+};
+MODULE_DEVICE_TABLE(i2c, e4000_id);
+
+static struct i2c_driver e4000_driver = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "e4000",
+ },
+ .probe = e4000_probe,
+ .remove = e4000_remove,
+ .id_table = e4000_id,
+};
+
+module_i2c_driver(e4000_driver);
MODULE_DESCRIPTION("Elonics E4000 silicon tuner driver");
MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-19 23:26:34 +0100