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path: root/drivers/media/tuners
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-rw-r--r--drivers/media/tuners/Kconfig7
-rw-r--r--drivers/media/tuners/Makefile1
-rw-r--r--drivers/media/tuners/e4000.c16
-rw-r--r--drivers/media/tuners/m88ts2022.c674
-rw-r--r--drivers/media/tuners/m88ts2022.h54
-rw-r--r--drivers/media/tuners/m88ts2022_priv.h34
-rw-r--r--drivers/media/tuners/tuner-xc2028.c38
7 files changed, 808 insertions, 16 deletions
diff --git a/drivers/media/tuners/Kconfig b/drivers/media/tuners/Kconfig
index 15665debc57..ba2e365296c 100644
--- a/drivers/media/tuners/Kconfig
+++ b/drivers/media/tuners/Kconfig
@@ -215,6 +215,13 @@ config MEDIA_TUNER_FC2580
help
FCI FC2580 silicon tuner driver.
+config MEDIA_TUNER_M88TS2022
+ tristate "Montage M88TS2022 silicon tuner"
+ depends on MEDIA_SUPPORT && I2C
+ default m if !MEDIA_SUBDRV_AUTOSELECT
+ help
+ Montage M88TS2022 silicon tuner driver.
+
config MEDIA_TUNER_TUA9001
tristate "Infineon TUA 9001 silicon tuner"
depends on MEDIA_SUPPORT && I2C
diff --git a/drivers/media/tuners/Makefile b/drivers/media/tuners/Makefile
index 308f108eadb..efe82a904b1 100644
--- a/drivers/media/tuners/Makefile
+++ b/drivers/media/tuners/Makefile
@@ -31,6 +31,7 @@ obj-$(CONFIG_MEDIA_TUNER_TDA18212) += tda18212.o
obj-$(CONFIG_MEDIA_TUNER_E4000) += e4000.o
obj-$(CONFIG_MEDIA_TUNER_FC2580) += fc2580.o
obj-$(CONFIG_MEDIA_TUNER_TUA9001) += tua9001.o
+obj-$(CONFIG_MEDIA_TUNER_M88TS2022) += m88ts2022.o
obj-$(CONFIG_MEDIA_TUNER_FC0011) += fc0011.o
obj-$(CONFIG_MEDIA_TUNER_FC0012) += fc0012.o
obj-$(CONFIG_MEDIA_TUNER_FC0013) += fc0013.o
diff --git a/drivers/media/tuners/e4000.c b/drivers/media/tuners/e4000.c
index 72971a8d3c3..40c1da707d1 100644
--- a/drivers/media/tuners/e4000.c
+++ b/drivers/media/tuners/e4000.c
@@ -243,8 +243,10 @@ static int e4000_set_params(struct dvb_frontend *fe)
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
@@ -271,8 +273,10 @@ static int e4000_set_params(struct dvb_frontend *fe)
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)
@@ -284,8 +288,10 @@ static int e4000_set_params(struct dvb_frontend *fe)
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;
@@ -300,8 +306,10 @@ static int e4000_set_params(struct dvb_frontend *fe)
break;
}
- if (i == ARRAY_SIZE(e4000_band_lut))
+ if (i == ARRAY_SIZE(e4000_band_lut)) {
+ ret = -EINVAL;
goto err;
+ }
ret = e4000_wr_reg(priv, 0x07, e4000_band_lut[i].reg07_val);
if (ret < 0)
diff --git a/drivers/media/tuners/m88ts2022.c b/drivers/media/tuners/m88ts2022.c
new file mode 100644
index 00000000000..40c42dec721
--- /dev/null
+++ b/drivers/media/tuners/m88ts2022.c
@@ -0,0 +1,674 @@
+/*
+ * Montage M88TS2022 silicon tuner driver
+ *
+ * Copyright (C) 2013 Antti Palosaari <crope@iki.fi>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Some calculations are taken from existing TS2020 driver.
+ */
+
+#include "m88ts2022_priv.h"
+
+/* write multiple registers */
+static int m88ts2022_wr_regs(struct m88ts2022_priv *priv,
+ u8 reg, const u8 *val, int len)
+{
+#define MAX_WR_LEN 3
+#define MAX_WR_XFER_LEN (MAX_WR_LEN + 1)
+ int ret;
+ u8 buf[MAX_WR_XFER_LEN];
+ struct i2c_msg msg[1] = {
+ {
+ .addr = priv->client->addr,
+ .flags = 0,
+ .len = 1 + len,
+ .buf = buf,
+ }
+ };
+
+ if (WARN_ON(len > MAX_WR_LEN))
+ return -EINVAL;
+
+ buf[0] = reg;
+ memcpy(&buf[1], val, len);
+
+ ret = i2c_transfer(priv->client->adapter, msg, 1);
+ if (ret == 1) {
+ ret = 0;
+ } else {
+ dev_warn(&priv->client->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 m88ts2022_rd_regs(struct m88ts2022_priv *priv, u8 reg,
+ u8 *val, int len)
+{
+#define MAX_RD_LEN 1
+#define MAX_RD_XFER_LEN (MAX_RD_LEN)
+ int ret;
+ u8 buf[MAX_RD_XFER_LEN];
+ struct i2c_msg msg[2] = {
+ {
+ .addr = priv->client->addr,
+ .flags = 0,
+ .len = 1,
+ .buf = &reg,
+ }, {
+ .addr = priv->client->addr,
+ .flags = I2C_M_RD,
+ .len = len,
+ .buf = buf,
+ }
+ };
+
+ if (WARN_ON(len > MAX_RD_LEN))
+ return -EINVAL;
+
+ ret = i2c_transfer(priv->client->adapter, msg, 2);
+ if (ret == 2) {
+ memcpy(val, buf, len);
+ ret = 0;
+ } else {
+ dev_warn(&priv->client->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 m88ts2022_wr_reg(struct m88ts2022_priv *priv, u8 reg, u8 val)
+{
+ return m88ts2022_wr_regs(priv, reg, &val, 1);
+}
+
+/* read single register */
+static int m88ts2022_rd_reg(struct m88ts2022_priv *priv, u8 reg, u8 *val)
+{
+ return m88ts2022_rd_regs(priv, reg, val, 1);
+}
+
+/* write single register with mask */
+static int m88ts2022_wr_reg_mask(struct m88ts2022_priv *priv,
+ u8 reg, u8 val, u8 mask)
+{
+ int ret;
+ u8 u8tmp;
+
+ /* no need for read if whole reg is written */
+ if (mask != 0xff) {
+ ret = m88ts2022_rd_regs(priv, reg, &u8tmp, 1);
+ if (ret)
+ return ret;
+
+ val &= mask;
+ u8tmp &= ~mask;
+ val |= u8tmp;
+ }
+
+ return m88ts2022_wr_regs(priv, reg, &val, 1);
+}
+
+static int m88ts2022_cmd(struct dvb_frontend *fe,
+ int op, int sleep, u8 reg, u8 mask, u8 val, u8 *reg_val)
+{
+ struct m88ts2022_priv *priv = fe->tuner_priv;
+ int ret, i;
+ u8 u8tmp;
+ struct m88ts2022_reg_val reg_vals[] = {
+ {0x51, 0x1f - op},
+ {0x51, 0x1f},
+ {0x50, 0x00 + op},
+ {0x50, 0x00},
+ };
+
+ for (i = 0; i < 2; i++) {
+ dev_dbg(&priv->client->dev,
+ "%s: i=%d op=%02x reg=%02x mask=%02x val=%02x\n",
+ __func__, i, op, reg, mask, val);
+
+ for (i = 0; i < ARRAY_SIZE(reg_vals); i++) {
+ ret = m88ts2022_wr_reg(priv, reg_vals[i].reg,
+ reg_vals[i].val);
+ if (ret)
+ goto err;
+ }
+
+ usleep_range(sleep * 1000, sleep * 10000);
+
+ ret = m88ts2022_rd_reg(priv, reg, &u8tmp);
+ if (ret)
+ goto err;
+
+ if ((u8tmp & mask) != val)
+ break;
+ }
+
+ if (reg_val)
+ *reg_val = u8tmp;
+err:
+ return ret;
+}
+
+static int m88ts2022_set_params(struct dvb_frontend *fe)
+{
+ struct m88ts2022_priv *priv = fe->tuner_priv;
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+ int ret;
+ unsigned int frequency_khz, frequency_offset_khz, f_3db_hz;
+ unsigned int f_ref_khz, f_vco_khz, div_ref, div_out, pll_n, gdiv28;
+ u8 buf[3], u8tmp, cap_code, lpf_gm, lpf_mxdiv, div_max, div_min;
+ u16 u16tmp;
+ dev_dbg(&priv->client->dev,
+ "%s: frequency=%d symbol_rate=%d rolloff=%d\n",
+ __func__, c->frequency, c->symbol_rate, c->rolloff);
+ /*
+ * Integer-N PLL synthesizer
+ * kHz is used for all calculations to keep calculations within 32-bit
+ */
+ f_ref_khz = DIV_ROUND_CLOSEST(priv->cfg.clock, 1000);
+ div_ref = DIV_ROUND_CLOSEST(f_ref_khz, 2000);
+
+ if (c->symbol_rate < 5000000)
+ frequency_offset_khz = 3000; /* 3 MHz */
+ else
+ frequency_offset_khz = 0;
+
+ frequency_khz = c->frequency + frequency_offset_khz;
+
+ if (frequency_khz < 1103000) {
+ div_out = 4;
+ u8tmp = 0x1b;
+ } else {
+ div_out = 2;
+ u8tmp = 0x0b;
+ }
+
+ buf[0] = u8tmp;
+ buf[1] = 0x40;
+ ret = m88ts2022_wr_regs(priv, 0x10, buf, 2);
+ if (ret)
+ goto err;
+
+ f_vco_khz = frequency_khz * div_out;
+ pll_n = f_vco_khz * div_ref / f_ref_khz;
+ pll_n += pll_n % 2;
+ priv->frequency_khz = pll_n * f_ref_khz / div_ref / div_out;
+
+ if (pll_n < 4095)
+ u16tmp = pll_n - 1024;
+ else if (pll_n < 6143)
+ u16tmp = pll_n + 1024;
+ else
+ u16tmp = pll_n + 3072;
+
+ buf[0] = (u16tmp >> 8) & 0x3f;
+ buf[1] = (u16tmp >> 0) & 0xff;
+ buf[2] = div_ref - 8;
+ ret = m88ts2022_wr_regs(priv, 0x01, buf, 3);
+ if (ret)
+ goto err;
+
+ dev_dbg(&priv->client->dev,
+ "%s: frequency=%u offset=%d f_vco_khz=%u pll_n=%u div_ref=%u div_out=%u\n",
+ __func__, priv->frequency_khz,
+ priv->frequency_khz - c->frequency, f_vco_khz, pll_n,
+ div_ref, div_out);
+
+ ret = m88ts2022_cmd(fe, 0x10, 5, 0x15, 0x40, 0x00, NULL);
+ if (ret)
+ goto err;
+
+ ret = m88ts2022_rd_reg(priv, 0x14, &u8tmp);
+ if (ret)
+ goto err;
+
+ u8tmp &= 0x7f;
+ if (u8tmp < 64) {
+ ret = m88ts2022_wr_reg_mask(priv, 0x10, 0x80, 0x80);
+ if (ret)
+ goto err;
+
+ ret = m88ts2022_wr_reg(priv, 0x11, 0x6f);
+ if (ret)
+ goto err;
+
+ ret = m88ts2022_cmd(fe, 0x10, 5, 0x15, 0x40, 0x00, NULL);
+ if (ret)
+ goto err;
+ }
+
+ ret = m88ts2022_rd_reg(priv, 0x14, &u8tmp);
+ if (ret)
+ goto err;
+
+ u8tmp &= 0x1f;
+ if (u8tmp > 19) {
+ ret = m88ts2022_wr_reg_mask(priv, 0x10, 0x00, 0x02);
+ if (ret)
+ goto err;
+ }
+
+ ret = m88ts2022_cmd(fe, 0x08, 5, 0x3c, 0xff, 0x00, NULL);
+ if (ret)
+ goto err;
+
+ ret = m88ts2022_wr_reg(priv, 0x25, 0x00);
+ if (ret)
+ goto err;
+
+ ret = m88ts2022_wr_reg(priv, 0x27, 0x70);
+ if (ret)
+ goto err;
+
+ ret = m88ts2022_wr_reg(priv, 0x41, 0x09);
+ if (ret)
+ goto err;
+
+ ret = m88ts2022_wr_reg(priv, 0x08, 0x0b);
+ if (ret)
+ goto err;
+
+ /* filters */
+ gdiv28 = DIV_ROUND_CLOSEST(f_ref_khz * 1694U, 1000000U);
+
+ ret = m88ts2022_wr_reg(priv, 0x04, gdiv28);
+ if (ret)
+ goto err;
+
+ ret = m88ts2022_cmd(fe, 0x04, 2, 0x26, 0xff, 0x00, &u8tmp);
+ if (ret)
+ goto err;
+
+ cap_code = u8tmp & 0x3f;
+
+ ret = m88ts2022_wr_reg(priv, 0x41, 0x0d);
+ if (ret)
+ goto err;
+
+ ret = m88ts2022_cmd(fe, 0x04, 2, 0x26, 0xff, 0x00, &u8tmp);
+ if (ret)
+ goto err;
+
+ u8tmp &= 0x3f;
+ cap_code = (cap_code + u8tmp) / 2;
+ gdiv28 = gdiv28 * 207 / (cap_code * 2 + 151);
+ div_max = gdiv28 * 135 / 100;
+ div_min = gdiv28 * 78 / 100;
+ div_max = clamp_val(div_max, 0U, 63U);
+
+ f_3db_hz = c->symbol_rate * 135UL / 200UL;
+ f_3db_hz += 2000000U + (frequency_offset_khz * 1000U);
+ f_3db_hz = clamp(f_3db_hz, 7000000U, 40000000U);
+
+#define LPF_COEFF 3200U
+ lpf_gm = DIV_ROUND_CLOSEST(f_3db_hz * gdiv28, LPF_COEFF * f_ref_khz);
+ lpf_gm = clamp_val(lpf_gm, 1U, 23U);
+
+ lpf_mxdiv = DIV_ROUND_CLOSEST(lpf_gm * LPF_COEFF * f_ref_khz, f_3db_hz);
+ if (lpf_mxdiv < div_min)
+ lpf_mxdiv = DIV_ROUND_CLOSEST(++lpf_gm * LPF_COEFF * f_ref_khz, f_3db_hz);
+ lpf_mxdiv = clamp_val(lpf_mxdiv, 0U, div_max);
+
+ ret = m88ts2022_wr_reg(priv, 0x04, lpf_mxdiv);
+ if (ret)
+ goto err;
+
+ ret = m88ts2022_wr_reg(priv, 0x06, lpf_gm);
+ if (ret)
+ goto err;
+
+ ret = m88ts2022_cmd(fe, 0x04, 2, 0x26, 0xff, 0x00, &u8tmp);
+ if (ret)
+ goto err;
+
+ cap_code = u8tmp & 0x3f;
+
+ ret = m88ts2022_wr_reg(priv, 0x41, 0x09);
+ if (ret)
+ goto err;
+
+ ret = m88ts2022_cmd(fe, 0x04, 2, 0x26, 0xff, 0x00, &u8tmp);
+ if (ret)
+ goto err;
+
+ u8tmp &= 0x3f;
+ cap_code = (cap_code + u8tmp) / 2;
+
+ u8tmp = cap_code | 0x80;
+ ret = m88ts2022_wr_reg(priv, 0x25, u8tmp);
+ if (ret)
+ goto err;
+
+ ret = m88ts2022_wr_reg(priv, 0x27, 0x30);
+ if (ret)
+ goto err;
+
+ ret = m88ts2022_wr_reg(priv, 0x08, 0x09);
+ if (ret)
+ goto err;
+
+ ret = m88ts2022_cmd(fe, 0x01, 20, 0x21, 0xff, 0x00, NULL);
+ if (ret)
+ goto err;
+err:
+ if (ret)
+ dev_dbg(&priv->client->dev, "%s: failed=%d\n", __func__, ret);
+
+ return ret;
+}
+
+static int m88ts2022_init(struct dvb_frontend *fe)
+{
+ struct m88ts2022_priv *priv = fe->tuner_priv;
+ int ret, i;
+ u8 u8tmp;
+ static const struct m88ts2022_reg_val reg_vals[] = {
+ {0x7d, 0x9d},
+ {0x7c, 0x9a},
+ {0x7a, 0x76},
+ {0x3b, 0x01},
+ {0x63, 0x88},
+ {0x61, 0x85},
+ {0x22, 0x30},
+ {0x30, 0x40},
+ {0x20, 0x23},
+ {0x24, 0x02},
+ {0x12, 0xa0},
+ };
+ dev_dbg(&priv->client->dev, "%s:\n", __func__);
+
+ ret = m88ts2022_wr_reg(priv, 0x00, 0x01);
+ if (ret)
+ goto err;
+
+ ret = m88ts2022_wr_reg(priv, 0x00, 0x03);
+ if (ret)
+ goto err;
+
+ switch (priv->cfg.clock_out) {
+ case M88TS2022_CLOCK_OUT_DISABLED:
+ u8tmp = 0x60;
+ break;
+ case M88TS2022_CLOCK_OUT_ENABLED:
+ u8tmp = 0x70;
+ ret = m88ts2022_wr_reg(priv, 0x05, priv->cfg.clock_out_div);
+ if (ret)
+ goto err;
+ break;
+ case M88TS2022_CLOCK_OUT_ENABLED_XTALOUT:
+ u8tmp = 0x6c;
+ break;
+ default:
+ goto err;
+ }
+
+ ret = m88ts2022_wr_reg(priv, 0x42, u8tmp);
+ if (ret)
+ goto err;
+
+ if (priv->cfg.loop_through)
+ u8tmp = 0xec;
+ else
+ u8tmp = 0x6c;
+
+ ret = m88ts2022_wr_reg(priv, 0x62, u8tmp);
+ if (ret)
+ goto err;
+
+ for (i = 0; i < ARRAY_SIZE(reg_vals); i++) {
+ ret = m88ts2022_wr_reg(priv, reg_vals[i].reg, reg_vals[i].val);
+ if (ret)
+ goto err;
+ }
+err:
+ if (ret)
+ dev_dbg(&priv->client->dev, "%s: failed=%d\n", __func__, ret);
+ return ret;
+}
+
+static int m88ts2022_sleep(struct dvb_frontend *fe)
+{
+ struct m88ts2022_priv *priv = fe->tuner_priv;
+ int ret;
+ dev_dbg(&priv->client->dev, "%s:\n", __func__);
+
+ ret = m88ts2022_wr_reg(priv, 0x00, 0x00);
+ if (ret)
+ goto err;
+err:
+ if (ret)
+ dev_dbg(&priv->client->dev, "%s: failed=%d\n", __func__, ret);
+ return ret;
+}
+
+static int m88ts2022_get_frequency(struct dvb_frontend *fe, u32 *frequency)
+{
+ struct m88ts2022_priv *priv = fe->tuner_priv;
+ dev_dbg(&priv->client->dev, "%s:\n", __func__);
+
+ *frequency = priv->frequency_khz;
+ return 0;
+}
+
+static int m88ts2022_get_if_frequency(struct dvb_frontend *fe, u32 *frequency)
+{
+ struct m88ts2022_priv *priv = fe->tuner_priv;
+ dev_dbg(&priv->client->dev, "%s:\n", __func__);
+
+ *frequency = 0; /* Zero-IF */
+ return 0;
+}
+
+static int m88ts2022_get_rf_strength(struct dvb_frontend *fe, u16 *strength)
+{
+ struct m88ts2022_priv *priv = fe->tuner_priv;
+ int ret;
+ u8 u8tmp;
+ u16 gain, u16tmp;
+ unsigned int gain1, gain2, gain3;
+
+ ret = m88ts2022_rd_reg(priv, 0x3d, &u8tmp);
+ if (ret)
+ goto err;
+
+ gain1 = (u8tmp >> 0) & 0x1f;
+ gain1 = clamp(gain1, 0U, 15U);
+
+ ret = m88ts2022_rd_reg(priv, 0x21, &u8tmp);
+ if (ret)
+ goto err;
+
+ gain2 = (u8tmp >> 0) & 0x1f;
+ gain2 = clamp(gain2, 2U, 16U);
+
+ ret = m88ts2022_rd_reg(priv, 0x66, &u8tmp);
+ if (ret)
+ goto err;
+
+ gain3 = (u8tmp >> 3) & 0x07;
+ gain3 = clamp(gain3, 0U, 6U);
+
+ gain = gain1 * 265 + gain2 * 338 + gain3 * 285;
+
+ /* scale value to 0x0000-0xffff */
+ u16tmp = (0xffff - gain);
+ u16tmp = clamp_val(u16tmp, 59000U, 61500U);
+
+ *strength = (u16tmp - 59000) * 0xffff / (61500 - 59000);
+err:
+ if (ret)
+ dev_dbg(&priv->client->dev, "%s: failed=%d\n", __func__, ret);
+ return ret;
+}
+
+static const struct dvb_tuner_ops m88ts2022_tuner_ops = {
+ .info = {
+ .name = "Montage M88TS2022",
+ .frequency_min = 950000,
+ .frequency_max = 2150000,
+ },
+
+ .init = m88ts2022_init,
+ .sleep = m88ts2022_sleep,
+ .set_params = m88ts2022_set_params,
+
+ .get_frequency = m88ts2022_get_frequency,
+ .get_if_frequency = m88ts2022_get_if_frequency,
+ .get_rf_strength = m88ts2022_get_rf_strength,
+};
+
+static int m88ts2022_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct m88ts2022_config *cfg = client->dev.platform_data;
+ struct dvb_frontend *fe = cfg->fe;
+ struct m88ts2022_priv *priv;
+ int ret;
+ u8 chip_id, u8tmp;
+
+ priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+ if (!priv) {
+ ret = -ENOMEM;
+ dev_err(&client->dev, "%s: kzalloc() failed\n", KBUILD_MODNAME);
+ goto err;
+ }
+
+ memcpy(&priv->cfg, cfg, sizeof(struct m88ts2022_config));
+ priv->client = client;
+
+ /* check if the tuner is there */
+ ret = m88ts2022_rd_reg(priv, 0x00, &u8tmp);
+ if (ret)
+ goto err;
+
+ if ((u8tmp & 0x03) == 0x00) {
+ ret = m88ts2022_wr_reg(priv, 0x00, 0x01);
+ if (ret < 0)
+ goto err;
+
+ usleep_range(2000, 50000);
+ }
+
+ ret = m88ts2022_wr_reg(priv, 0x00, 0x03);
+ if (ret)
+ goto err;
+
+ usleep_range(2000, 50000);
+
+ ret = m88ts2022_rd_reg(priv, 0x00, &chip_id);
+ if (ret)
+ goto err;
+
+ dev_dbg(&priv->client->dev, "%s: chip_id=%02x\n", __func__, chip_id);
+
+ switch (chip_id) {
+ case 0xc3:
+ case 0x83:
+ break;
+ default:
+ goto err;
+ }
+
+ switch (priv->cfg.clock_out) {
+ case M88TS2022_CLOCK_OUT_DISABLED:
+ u8tmp = 0x60;
+ break;
+ case M88TS2022_CLOCK_OUT_ENABLED:
+ u8tmp = 0x70;
+ ret = m88ts2022_wr_reg(priv, 0x05, priv->cfg.clock_out_div);
+ if (ret)
+ goto err;
+ break;
+ case M88TS2022_CLOCK_OUT_ENABLED_XTALOUT:
+ u8tmp = 0x6c;
+ break;
+ default:
+ goto err;
+ }
+
+ ret = m88ts2022_wr_reg(priv, 0x42, u8tmp);
+ if (ret)
+ goto err;
+
+ if (priv->cfg.loop_through)
+ u8tmp = 0xec;
+ else
+ u8tmp = 0x6c;
+
+ ret = m88ts2022_wr_reg(priv, 0x62, u8tmp);
+ if (ret)
+ goto err;
+
+ /* sleep */
+ ret = m88ts2022_wr_reg(priv, 0x00, 0x00);
+ if (ret)
+ goto err;
+
+ dev_info(&priv->client->dev,
+ "%s: Montage M88TS2022 successfully identified\n",
+ KBUILD_MODNAME);
+
+ fe->tuner_priv = priv;
+ memcpy(&fe->ops.tuner_ops, &m88ts2022_tuner_ops,
+ sizeof(struct dvb_tuner_ops));
+
+ i2c_set_clientdata(client, priv);
+ return 0;
+err:
+ dev_dbg(&client->dev, "%s: failed=%d\n", __func__, ret);
+ kfree(priv);
+ return ret;
+}
+
+static int m88ts2022_remove(struct i2c_client *client)
+{
+ struct m88ts2022_priv *priv = i2c_get_clientdata(client);
+ struct dvb_frontend *fe = priv->cfg.fe;
+ dev_dbg(&client->dev, "%s:\n", __func__);
+
+ memset(&fe->ops.tuner_ops, 0, sizeof(struct dvb_tuner_ops));
+ fe->tuner_priv = NULL;
+ kfree(priv);
+
+ return 0;
+}
+
+static const struct i2c_device_id m88ts2022_id[] = {
+ {"m88ts2022", 0},
+ {}
+};
+MODULE_DEVICE_TABLE(i2c, m88ts2022_id);
+
+static struct i2c_driver m88ts2022_driver = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "m88ts2022",
+ },
+ .probe = m88ts2022_probe,
+ .remove = m88ts2022_remove,
+ .id_table = m88ts2022_id,
+};
+
+module_i2c_driver(m88ts2022_driver);
+
+MODULE_DESCRIPTION("Montage M88TS2022 silicon tuner driver");
+MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/media/tuners/m88ts2022.h b/drivers/media/tuners/m88ts2022.h
new file mode 100644
index 00000000000..659fa1b1633
--- /dev/null
+++ b/drivers/media/tuners/m88ts2022.h
@@ -0,0 +1,54 @@
+/*
+ * Montage M88TS2022 silicon tuner driver
+ *
+ * Copyright (C) 2013 Antti Palosaari <crope@iki.fi>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef M88TS2022_H
+#define M88TS2022_H
+
+#include "dvb_frontend.h"
+
+struct m88ts2022_config {
+ /*
+ * clock
+ * 16000000 - 32000000
+ */
+ u32 clock;
+
+ /*
+ * RF loop-through
+ */
+ u8 loop_through:1;
+
+ /*
+ * clock output
+ */
+#define M88TS2022_CLOCK_OUT_DISABLED 0
+#define M88TS2022_CLOCK_OUT_ENABLED 1
+#define M88TS2022_CLOCK_OUT_ENABLED_XTALOUT 2
+ u8 clock_out:2;
+
+ /*
+ * clock output divider
+ * 1 - 31
+ */
+ u8 clock_out_div:5;
+
+ /*
+ * pointer to DVB frontend
+ */
+ struct dvb_frontend *fe;
+};
+
+#endif
diff --git a/drivers/media/tuners/m88ts2022_priv.h b/drivers/media/tuners/m88ts2022_priv.h
new file mode 100644
index 00000000000..0363dd866a2
--- /dev/null
+++ b/drivers/media/tuners/m88ts2022_priv.h
@@ -0,0 +1,34 @@
+/*
+ * Montage M88TS2022 silicon tuner driver
+ *
+ * Copyright (C) 2013 Antti Palosaari <crope@iki.fi>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef M88TS2022_PRIV_H
+#define M88TS2022_PRIV_H
+
+#include "m88ts2022.h"
+
+struct m88ts2022_priv {
+ struct m88ts2022_config cfg;
+ struct i2c_client *client;
+ struct dvb_frontend *fe;
+ u32 frequency_khz;
+};
+
+struct m88ts2022_reg_val {
+ u8 reg;
+ u8 val;
+};
+
+#endif
diff --git a/drivers/media/tuners/tuner-xc2028.c b/drivers/media/tuners/tuner-xc2028.c
index 4be5cf808a4..cca508d4aaf 100644
--- a/drivers/media/tuners/tuner-xc2028.c
+++ b/drivers/media/tuners/tuner-xc2028.c
@@ -134,15 +134,6 @@ struct xc2028_data {
_rc; \
})
-#define i2c_rcv(priv, buf, size) ({ \
- int _rc; \
- _rc = tuner_i2c_xfer_recv(&priv->i2c_props, buf, size); \
- if (size != _rc) \
- tuner_err("i2c input error: rc = %d (should be %d)\n", \
- _rc, (int)size); \
- _rc; \
-})
-
#define i2c_send_recv(priv, obuf, osize, ibuf, isize) ({ \
int _rc; \
_rc = tuner_i2c_xfer_send_recv(&priv->i2c_props, obuf, osize, \
@@ -276,6 +267,7 @@ static int check_device_status(struct xc2028_data *priv)
case XC2028_WAITING_FIRMWARE:
return -EAGAIN;
case XC2028_ACTIVE:
+ return 1;
case XC2028_SLEEP:
return 0;
case XC2028_NODEV:
@@ -718,6 +710,8 @@ static int load_scode(struct dvb_frontend *fe, unsigned int type,
return 0;
}
+static int xc2028_sleep(struct dvb_frontend *fe);
+
static int check_firmware(struct dvb_frontend *fe, unsigned int type,
v4l2_std_id std, __u16 int_freq)
{
@@ -890,7 +884,7 @@ read_not_reliable:
return 0;
fail:
- priv->state = XC2028_SLEEP;
+ priv->state = XC2028_NO_FIRMWARE;
memset(&priv->cur_fw, 0, sizeof(priv->cur_fw));
if (retry_count < 8) {
@@ -900,6 +894,9 @@ fail:
goto retry;
}
+ /* Firmware didn't load. Put the device to sleep */
+ xc2028_sleep(fe);
+
if (rc == -ENOENT)
rc = -EINVAL;
return rc;
@@ -917,6 +914,12 @@ static int xc2028_signal(struct dvb_frontend *fe, u16 *strength)
if (rc < 0)
return rc;
+ /* If the device is sleeping, no channel is tuned */
+ if (!rc) {
+ *strength = 0;
+ return 0;
+ }
+
mutex_lock(&priv->lock);
/* Sync Lock Indicator */
@@ -964,6 +967,12 @@ static int xc2028_get_afc(struct dvb_frontend *fe, s32 *afc)
if (rc < 0)
return rc;
+ /* If the device is sleeping, no channel is tuned */
+ if (!rc) {
+ *afc = 0;
+ return 0;
+ }
+
mutex_lock(&priv->lock);
/* Sync Lock Indicator */
@@ -1281,6 +1290,10 @@ static int xc2028_sleep(struct dvb_frontend *fe)
if (rc < 0)
return rc;
+ /* Device is already in sleep mode */
+ if (!rc)
+ return 0;
+
/* Avoid firmware reload on slow devices or if PM disabled */
if (no_poweroff || priv->ctrl.disable_power_mgmt)
return 0;
@@ -1298,7 +1311,8 @@ static int xc2028_sleep(struct dvb_frontend *fe)
else
rc = send_seq(priv, {0x80, XREG_POWER_DOWN, 0x00, 0x00});
- priv->state = XC2028_SLEEP;
+ if (rc >= 0)
+ priv->state = XC2028_SLEEP;
mutex_unlock(&priv->lock);
@@ -1366,7 +1380,7 @@ static void load_firmware_cb(const struct firmware *fw,
if (rc < 0)
return;
- priv->state = XC2028_SLEEP;
+ priv->state = XC2028_ACTIVE;
}
static int xc2028_set_config(struct dvb_frontend *fe, void *priv_cfg)
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-27 03:27:25 +0000