Move MSi001 driver from staging to drivers/media/tuners/.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
help
Say Y here to include support for the Philips TEA5767 radio tuner.
+config MEDIA_TUNER_MSI001
+ tristate "Mirics MSi001"
+ depends on MEDIA_SUPPORT && SPI && VIDEO_V4L2
+ help
+ Mirics MSi001 silicon tuner driver.
+
config MEDIA_TUNER_MT20XX
tristate "Microtune 2032 / 2050 tuners"
depends on MEDIA_SUPPORT && I2C
obj-$(CONFIG_MEDIA_TUNER_TDA18271) += tda18271.o
obj-$(CONFIG_MEDIA_TUNER_XC5000) += xc5000.o
obj-$(CONFIG_MEDIA_TUNER_XC4000) += xc4000.o
+obj-$(CONFIG_MEDIA_TUNER_MSI001) += msi001.o
obj-$(CONFIG_MEDIA_TUNER_MT2060) += mt2060.o
obj-$(CONFIG_MEDIA_TUNER_MT2063) += mt2063.o
obj-$(CONFIG_MEDIA_TUNER_MT2266) += mt2266.o
--- /dev/null
+/*
+ * Mirics MSi001 silicon tuner driver
+ *
+ * Copyright (C) 2013 Antti Palosaari <crope@iki.fi>
+ * Copyright (C) 2014 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.
+ */
+
+#include <linux/module.h>
+#include <linux/gcd.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ctrls.h>
+
+static const struct v4l2_frequency_band bands[] = {
+ {
+ .type = V4L2_TUNER_RF,
+ .index = 0,
+ .capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS,
+ .rangelow = 49000000,
+ .rangehigh = 263000000,
+ }, {
+ .type = V4L2_TUNER_RF,
+ .index = 1,
+ .capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS,
+ .rangelow = 390000000,
+ .rangehigh = 960000000,
+ },
+};
+
+struct msi001 {
+ struct spi_device *spi;
+ struct v4l2_subdev sd;
+
+ /* Controls */
+ struct v4l2_ctrl_handler hdl;
+ struct v4l2_ctrl *bandwidth_auto;
+ struct v4l2_ctrl *bandwidth;
+ struct v4l2_ctrl *lna_gain;
+ struct v4l2_ctrl *mixer_gain;
+ struct v4l2_ctrl *if_gain;
+
+ unsigned int f_tuner;
+};
+
+static inline struct msi001 *sd_to_msi001(struct v4l2_subdev *sd)
+{
+ return container_of(sd, struct msi001, sd);
+}
+
+static int msi001_wreg(struct msi001 *s, u32 data)
+{
+ /* Register format: 4 bits addr + 20 bits value */
+ return spi_write(s->spi, &data, 3);
+};
+
+static int msi001_set_gain(struct msi001 *s, int lna_gain, int mixer_gain,
+ int if_gain)
+{
+ int ret;
+ u32 reg;
+ dev_dbg(&s->spi->dev, "%s: lna=%d mixer=%d if=%d\n", __func__,
+ lna_gain, mixer_gain, if_gain);
+
+ reg = 1 << 0;
+ reg |= (59 - if_gain) << 4;
+ reg |= 0 << 10;
+ reg |= (1 - mixer_gain) << 12;
+ reg |= (1 - lna_gain) << 13;
+ reg |= 4 << 14;
+ reg |= 0 << 17;
+ ret = msi001_wreg(s, reg);
+ if (ret)
+ goto err;
+
+ return 0;
+err:
+ dev_dbg(&s->spi->dev, "%s: failed %d\n", __func__, ret);
+ return ret;
+};
+
+static int msi001_set_tuner(struct msi001 *s)
+{
+ int ret, i;
+ unsigned int n, m, thresh, frac, vco_step, tmp, f_if1;
+ u32 reg;
+ u64 f_vco, tmp64;
+ u8 mode, filter_mode, lo_div;
+ static const struct {
+ u32 rf;
+ u8 mode;
+ u8 lo_div;
+ } band_lut[] = {
+ { 50000000, 0xe1, 16}, /* AM_MODE2, antenna 2 */
+ {108000000, 0x42, 32}, /* VHF_MODE */
+ {330000000, 0x44, 16}, /* B3_MODE */
+ {960000000, 0x48, 4}, /* B45_MODE */
+ { ~0U, 0x50, 2}, /* BL_MODE */
+ };
+ static const struct {
+ u32 freq;
+ u8 filter_mode;
+ } if_freq_lut[] = {
+ { 0, 0x03}, /* Zero IF */
+ { 450000, 0x02}, /* 450 kHz IF */
+ {1620000, 0x01}, /* 1.62 MHz IF */
+ {2048000, 0x00}, /* 2.048 MHz IF */
+ };
+ static const struct {
+ u32 freq;
+ u8 val;
+ } bandwidth_lut[] = {
+ { 200000, 0x00}, /* 200 kHz */
+ { 300000, 0x01}, /* 300 kHz */
+ { 600000, 0x02}, /* 600 kHz */
+ {1536000, 0x03}, /* 1.536 MHz */
+ {5000000, 0x04}, /* 5 MHz */
+ {6000000, 0x05}, /* 6 MHz */
+ {7000000, 0x06}, /* 7 MHz */
+ {8000000, 0x07}, /* 8 MHz */
+ };
+
+ unsigned int f_rf = s->f_tuner;
+
+ /*
+ * bandwidth (Hz)
+ * 200000, 300000, 600000, 1536000, 5000000, 6000000, 7000000, 8000000
+ */
+ unsigned int bandwidth;
+
+ /*
+ * intermediate frequency (Hz)
+ * 0, 450000, 1620000, 2048000
+ */
+ unsigned int f_if = 0;
+ #define F_REF 24000000
+ #define R_REF 4
+ #define F_OUT_STEP 1
+
+ dev_dbg(&s->spi->dev,
+ "%s: f_rf=%d f_if=%d\n",
+ __func__, f_rf, f_if);
+
+ for (i = 0; i < ARRAY_SIZE(band_lut); i++) {
+ if (f_rf <= band_lut[i].rf) {
+ mode = band_lut[i].mode;
+ lo_div = band_lut[i].lo_div;
+ break;
+ }
+ }
+
+ if (i == ARRAY_SIZE(band_lut)) {
+ ret = -EINVAL;
+ goto err;
+ }
+
+ /* AM_MODE is upconverted */
+ if ((mode >> 0) & 0x1)
+ f_if1 = 5 * F_REF;
+ else
+ f_if1 = 0;
+
+ for (i = 0; i < ARRAY_SIZE(if_freq_lut); i++) {
+ if (f_if == if_freq_lut[i].freq) {
+ filter_mode = if_freq_lut[i].filter_mode;
+ break;
+ }
+ }
+
+ if (i == ARRAY_SIZE(if_freq_lut)) {
+ ret = -EINVAL;
+ goto err;
+ }
+
+ /* filters */
+ bandwidth = s->bandwidth->val;
+ bandwidth = clamp(bandwidth, 200000U, 8000000U);
+
+ for (i = 0; i < ARRAY_SIZE(bandwidth_lut); i++) {
+ if (bandwidth <= bandwidth_lut[i].freq) {
+ bandwidth = bandwidth_lut[i].val;
+ break;
+ }
+ }
+
+ if (i == ARRAY_SIZE(bandwidth_lut)) {
+ ret = -EINVAL;
+ goto err;
+ }
+
+ s->bandwidth->val = bandwidth_lut[i].freq;
+
+ dev_dbg(&s->spi->dev, "%s: bandwidth selected=%d\n",
+ __func__, bandwidth_lut[i].freq);
+
+ f_vco = (u64) (f_rf + f_if + f_if1) * lo_div;
+ tmp64 = f_vco;
+ m = do_div(tmp64, F_REF * R_REF);
+ n = (unsigned int) tmp64;
+
+ vco_step = F_OUT_STEP * lo_div;
+ thresh = (F_REF * R_REF) / vco_step;
+ frac = 1ul * thresh * m / (F_REF * R_REF);
+
+ /* Find out greatest common divisor and divide to smaller. */
+ tmp = gcd(thresh, frac);
+ thresh /= tmp;
+ frac /= tmp;
+
+ /* Force divide to reg max. Resolution will be reduced. */
+ tmp = DIV_ROUND_UP(thresh, 4095);
+ thresh = DIV_ROUND_CLOSEST(thresh, tmp);
+ frac = DIV_ROUND_CLOSEST(frac, tmp);
+
+ /* calc real RF set */
+ tmp = 1ul * F_REF * R_REF * n;
+ tmp += 1ul * F_REF * R_REF * frac / thresh;
+ tmp /= lo_div;
+
+ dev_dbg(&s->spi->dev,
+ "%s: rf=%u:%u n=%d thresh=%d frac=%d\n",
+ __func__, f_rf, tmp, n, thresh, frac);
+
+ ret = msi001_wreg(s, 0x00000e);
+ if (ret)
+ goto err;
+
+ ret = msi001_wreg(s, 0x000003);
+ if (ret)
+ goto err;
+
+ reg = 0 << 0;
+ reg |= mode << 4;
+ reg |= filter_mode << 12;
+ reg |= bandwidth << 14;
+ reg |= 0x02 << 17;
+ reg |= 0x00 << 20;
+ ret = msi001_wreg(s, reg);
+ if (ret)
+ goto err;
+
+ reg = 5 << 0;
+ reg |= thresh << 4;
+ reg |= 1 << 19;
+ reg |= 1 << 21;
+ ret = msi001_wreg(s, reg);
+ if (ret)
+ goto err;
+
+ reg = 2 << 0;
+ reg |= frac << 4;
+ reg |= n << 16;
+ ret = msi001_wreg(s, reg);
+ if (ret)
+ goto err;
+
+ ret = msi001_set_gain(s, s->lna_gain->cur.val, s->mixer_gain->cur.val,
+ s->if_gain->cur.val);
+ if (ret)
+ goto err;
+
+ reg = 6 << 0;
+ reg |= 63 << 4;
+ reg |= 4095 << 10;
+ ret = msi001_wreg(s, reg);
+ if (ret)
+ goto err;
+
+ return 0;
+err:
+ dev_dbg(&s->spi->dev, "%s: failed %d\n", __func__, ret);
+ return ret;
+};
+
+static int msi001_s_power(struct v4l2_subdev *sd, int on)
+{
+ struct msi001 *s = sd_to_msi001(sd);
+ int ret;
+ dev_dbg(&s->spi->dev, "%s: on=%d\n", __func__, on);
+
+ if (on)
+ ret = 0;
+ else
+ ret = msi001_wreg(s, 0x000000);
+
+ return ret;
+}
+
+static const struct v4l2_subdev_core_ops msi001_core_ops = {
+ .s_power = msi001_s_power,
+};
+
+static int msi001_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *v)
+{
+ struct msi001 *s = sd_to_msi001(sd);
+ dev_dbg(&s->spi->dev, "%s: index=%d\n", __func__, v->index);
+
+ strlcpy(v->name, "Mirics MSi001", sizeof(v->name));
+ v->type = V4L2_TUNER_RF;
+ v->capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS;
+ v->rangelow = 49000000;
+ v->rangehigh = 960000000;
+
+ return 0;
+}
+
+static int msi001_s_tuner(struct v4l2_subdev *sd, const struct v4l2_tuner *v)
+{
+ struct msi001 *s = sd_to_msi001(sd);
+ dev_dbg(&s->spi->dev, "%s: index=%d\n", __func__, v->index);
+ return 0;
+}
+
+static int msi001_g_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *f)
+{
+ struct msi001 *s = sd_to_msi001(sd);
+ dev_dbg(&s->spi->dev, "%s: tuner=%d\n", __func__, f->tuner);
+ f->frequency = s->f_tuner;
+ return 0;
+}
+
+static int msi001_s_frequency(struct v4l2_subdev *sd,
+ const struct v4l2_frequency *f)
+{
+ struct msi001 *s = sd_to_msi001(sd);
+ unsigned int band;
+ dev_dbg(&s->spi->dev, "%s: tuner=%d type=%d frequency=%u\n",
+ __func__, f->tuner, f->type, f->frequency);
+
+ if (f->frequency < ((bands[0].rangehigh + bands[1].rangelow) / 2))
+ band = 0;
+ else
+ band = 1;
+ s->f_tuner = clamp_t(unsigned int, f->frequency,
+ bands[band].rangelow, bands[band].rangehigh);
+
+ return msi001_set_tuner(s);
+}
+
+static int msi001_enum_freq_bands(struct v4l2_subdev *sd,
+ struct v4l2_frequency_band *band)
+{
+ struct msi001 *s = sd_to_msi001(sd);
+ dev_dbg(&s->spi->dev, "%s: tuner=%d type=%d index=%d\n",
+ __func__, 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 msi001_tuner_ops = {
+ .g_tuner = msi001_g_tuner,
+ .s_tuner = msi001_s_tuner,
+ .g_frequency = msi001_g_frequency,
+ .s_frequency = msi001_s_frequency,
+ .enum_freq_bands = msi001_enum_freq_bands,
+};
+
+static const struct v4l2_subdev_ops msi001_ops = {
+ .core = &msi001_core_ops,
+ .tuner = &msi001_tuner_ops,
+};
+
+static int msi001_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct msi001 *s = container_of(ctrl->handler, struct msi001, hdl);
+
+ int ret;
+ dev_dbg(&s->spi->dev,
+ "%s: id=%d name=%s val=%d min=%lld max=%lld step=%lld\n",
+ __func__, ctrl->id, ctrl->name, ctrl->val,
+ ctrl->minimum, ctrl->maximum, ctrl->step);
+
+ switch (ctrl->id) {
+ case V4L2_CID_RF_TUNER_BANDWIDTH_AUTO:
+ case V4L2_CID_RF_TUNER_BANDWIDTH:
+ ret = msi001_set_tuner(s);
+ break;
+ case V4L2_CID_RF_TUNER_LNA_GAIN:
+ ret = msi001_set_gain(s, s->lna_gain->val,
+ s->mixer_gain->cur.val, s->if_gain->cur.val);
+ break;
+ case V4L2_CID_RF_TUNER_MIXER_GAIN:
+ ret = msi001_set_gain(s, s->lna_gain->cur.val,
+ s->mixer_gain->val, s->if_gain->cur.val);
+ break;
+ case V4L2_CID_RF_TUNER_IF_GAIN:
+ ret = msi001_set_gain(s, s->lna_gain->cur.val,
+ s->mixer_gain->cur.val, s->if_gain->val);
+ break;
+ default:
+ dev_dbg(&s->spi->dev, "%s: unkown control %d\n",
+ __func__, ctrl->id);
+ ret = -EINVAL;
+ }
+
+ return ret;
+}
+
+static const struct v4l2_ctrl_ops msi001_ctrl_ops = {
+ .s_ctrl = msi001_s_ctrl,
+};
+
+static int msi001_probe(struct spi_device *spi)
+{
+ struct msi001 *s;
+ int ret;
+ dev_dbg(&spi->dev, "%s:\n", __func__);
+
+ s = kzalloc(sizeof(struct msi001), GFP_KERNEL);
+ if (s == NULL) {
+ ret = -ENOMEM;
+ dev_dbg(&spi->dev, "Could not allocate memory for msi001\n");
+ goto err_kfree;
+ }
+
+ s->spi = spi;
+ s->f_tuner = bands[0].rangelow;
+ v4l2_spi_subdev_init(&s->sd, spi, &msi001_ops);
+
+ /* Register controls */
+ v4l2_ctrl_handler_init(&s->hdl, 5);
+ s->bandwidth_auto = v4l2_ctrl_new_std(&s->hdl, &msi001_ctrl_ops,
+ V4L2_CID_RF_TUNER_BANDWIDTH_AUTO, 0, 1, 1, 1);
+ s->bandwidth = v4l2_ctrl_new_std(&s->hdl, &msi001_ctrl_ops,
+ V4L2_CID_RF_TUNER_BANDWIDTH, 200000, 8000000, 1, 200000);
+ v4l2_ctrl_auto_cluster(2, &s->bandwidth_auto, 0, false);
+ s->lna_gain = v4l2_ctrl_new_std(&s->hdl, &msi001_ctrl_ops,
+ V4L2_CID_RF_TUNER_LNA_GAIN, 0, 1, 1, 1);
+ s->mixer_gain = v4l2_ctrl_new_std(&s->hdl, &msi001_ctrl_ops,
+ V4L2_CID_RF_TUNER_MIXER_GAIN, 0, 1, 1, 1);
+ s->if_gain = v4l2_ctrl_new_std(&s->hdl, &msi001_ctrl_ops,
+ V4L2_CID_RF_TUNER_IF_GAIN, 0, 59, 1, 0);
+ if (s->hdl.error) {
+ ret = s->hdl.error;
+ dev_err(&s->spi->dev, "Could not initialize controls\n");
+ /* control init failed, free handler */
+ goto err_ctrl_handler_free;
+ }
+
+ s->sd.ctrl_handler = &s->hdl;
+ return 0;
+
+err_ctrl_handler_free:
+ v4l2_ctrl_handler_free(&s->hdl);
+err_kfree:
+ kfree(s);
+ return ret;
+}
+
+static int msi001_remove(struct spi_device *spi)
+{
+ struct v4l2_subdev *sd = spi_get_drvdata(spi);
+ struct msi001 *s = sd_to_msi001(sd);
+ dev_dbg(&spi->dev, "%s:\n", __func__);
+
+ /*
+ * Registered by v4l2_spi_new_subdev() from master driver, but we must
+ * unregister it from here. Weird.
+ */
+ v4l2_device_unregister_subdev(&s->sd);
+ v4l2_ctrl_handler_free(&s->hdl);
+ kfree(s);
+ return 0;
+}
+
+static const struct spi_device_id msi001_id[] = {
+ {"msi001", 0},
+ {}
+};
+MODULE_DEVICE_TABLE(spi, msi001_id);
+
+static struct spi_driver msi001_driver = {
+ .driver = {
+ .name = "msi001",
+ .owner = THIS_MODULE,
+ },
+ .probe = msi001_probe,
+ .remove = msi001_remove,
+ .id_table = msi001_id,
+};
+module_spi_driver(msi001_driver);
+
+MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
+MODULE_DESCRIPTION("Mirics MSi001");
+MODULE_LICENSE("GPL");
select VIDEOBUF2_VMALLOC
select MEDIA_TUNER_MSI001
-config MEDIA_TUNER_MSI001
- tristate "Mirics MSi001"
- depends on VIDEO_V4L2 && SPI
obj-$(CONFIG_USB_MSI3101) += sdr-msi3101.o
-obj-$(CONFIG_MEDIA_TUNER_MSI001) += msi001.o
+++ /dev/null
-/*
- * Mirics MSi001 silicon tuner driver
- *
- * Copyright (C) 2013 Antti Palosaari <crope@iki.fi>
- * Copyright (C) 2014 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.
- */
-
-#include <linux/module.h>
-#include <linux/gcd.h>
-#include <media/v4l2-device.h>
-#include <media/v4l2-ctrls.h>
-
-static const struct v4l2_frequency_band bands[] = {
- {
- .type = V4L2_TUNER_RF,
- .index = 0,
- .capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS,
- .rangelow = 49000000,
- .rangehigh = 263000000,
- }, {
- .type = V4L2_TUNER_RF,
- .index = 1,
- .capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS,
- .rangelow = 390000000,
- .rangehigh = 960000000,
- },
-};
-
-struct msi001 {
- struct spi_device *spi;
- struct v4l2_subdev sd;
-
- /* Controls */
- struct v4l2_ctrl_handler hdl;
- struct v4l2_ctrl *bandwidth_auto;
- struct v4l2_ctrl *bandwidth;
- struct v4l2_ctrl *lna_gain;
- struct v4l2_ctrl *mixer_gain;
- struct v4l2_ctrl *if_gain;
-
- unsigned int f_tuner;
-};
-
-static inline struct msi001 *sd_to_msi001(struct v4l2_subdev *sd)
-{
- return container_of(sd, struct msi001, sd);
-}
-
-static int msi001_wreg(struct msi001 *s, u32 data)
-{
- /* Register format: 4 bits addr + 20 bits value */
- return spi_write(s->spi, &data, 3);
-};
-
-static int msi001_set_gain(struct msi001 *s, int lna_gain, int mixer_gain,
- int if_gain)
-{
- int ret;
- u32 reg;
- dev_dbg(&s->spi->dev, "%s: lna=%d mixer=%d if=%d\n", __func__,
- lna_gain, mixer_gain, if_gain);
-
- reg = 1 << 0;
- reg |= (59 - if_gain) << 4;
- reg |= 0 << 10;
- reg |= (1 - mixer_gain) << 12;
- reg |= (1 - lna_gain) << 13;
- reg |= 4 << 14;
- reg |= 0 << 17;
- ret = msi001_wreg(s, reg);
- if (ret)
- goto err;
-
- return 0;
-err:
- dev_dbg(&s->spi->dev, "%s: failed %d\n", __func__, ret);
- return ret;
-};
-
-static int msi001_set_tuner(struct msi001 *s)
-{
- int ret, i;
- unsigned int n, m, thresh, frac, vco_step, tmp, f_if1;
- u32 reg;
- u64 f_vco, tmp64;
- u8 mode, filter_mode, lo_div;
- static const struct {
- u32 rf;
- u8 mode;
- u8 lo_div;
- } band_lut[] = {
- { 50000000, 0xe1, 16}, /* AM_MODE2, antenna 2 */
- {108000000, 0x42, 32}, /* VHF_MODE */
- {330000000, 0x44, 16}, /* B3_MODE */
- {960000000, 0x48, 4}, /* B45_MODE */
- { ~0U, 0x50, 2}, /* BL_MODE */
- };
- static const struct {
- u32 freq;
- u8 filter_mode;
- } if_freq_lut[] = {
- { 0, 0x03}, /* Zero IF */
- { 450000, 0x02}, /* 450 kHz IF */
- {1620000, 0x01}, /* 1.62 MHz IF */
- {2048000, 0x00}, /* 2.048 MHz IF */
- };
- static const struct {
- u32 freq;
- u8 val;
- } bandwidth_lut[] = {
- { 200000, 0x00}, /* 200 kHz */
- { 300000, 0x01}, /* 300 kHz */
- { 600000, 0x02}, /* 600 kHz */
- {1536000, 0x03}, /* 1.536 MHz */
- {5000000, 0x04}, /* 5 MHz */
- {6000000, 0x05}, /* 6 MHz */
- {7000000, 0x06}, /* 7 MHz */
- {8000000, 0x07}, /* 8 MHz */
- };
-
- unsigned int f_rf = s->f_tuner;
-
- /*
- * bandwidth (Hz)
- * 200000, 300000, 600000, 1536000, 5000000, 6000000, 7000000, 8000000
- */
- unsigned int bandwidth;
-
- /*
- * intermediate frequency (Hz)
- * 0, 450000, 1620000, 2048000
- */
- unsigned int f_if = 0;
- #define F_REF 24000000
- #define R_REF 4
- #define F_OUT_STEP 1
-
- dev_dbg(&s->spi->dev,
- "%s: f_rf=%d f_if=%d\n",
- __func__, f_rf, f_if);
-
- for (i = 0; i < ARRAY_SIZE(band_lut); i++) {
- if (f_rf <= band_lut[i].rf) {
- mode = band_lut[i].mode;
- lo_div = band_lut[i].lo_div;
- break;
- }
- }
-
- if (i == ARRAY_SIZE(band_lut)) {
- ret = -EINVAL;
- goto err;
- }
-
- /* AM_MODE is upconverted */
- if ((mode >> 0) & 0x1)
- f_if1 = 5 * F_REF;
- else
- f_if1 = 0;
-
- for (i = 0; i < ARRAY_SIZE(if_freq_lut); i++) {
- if (f_if == if_freq_lut[i].freq) {
- filter_mode = if_freq_lut[i].filter_mode;
- break;
- }
- }
-
- if (i == ARRAY_SIZE(if_freq_lut)) {
- ret = -EINVAL;
- goto err;
- }
-
- /* filters */
- bandwidth = s->bandwidth->val;
- bandwidth = clamp(bandwidth, 200000U, 8000000U);
-
- for (i = 0; i < ARRAY_SIZE(bandwidth_lut); i++) {
- if (bandwidth <= bandwidth_lut[i].freq) {
- bandwidth = bandwidth_lut[i].val;
- break;
- }
- }
-
- if (i == ARRAY_SIZE(bandwidth_lut)) {
- ret = -EINVAL;
- goto err;
- }
-
- s->bandwidth->val = bandwidth_lut[i].freq;
-
- dev_dbg(&s->spi->dev, "%s: bandwidth selected=%d\n",
- __func__, bandwidth_lut[i].freq);
-
- f_vco = (u64) (f_rf + f_if + f_if1) * lo_div;
- tmp64 = f_vco;
- m = do_div(tmp64, F_REF * R_REF);
- n = (unsigned int) tmp64;
-
- vco_step = F_OUT_STEP * lo_div;
- thresh = (F_REF * R_REF) / vco_step;
- frac = 1ul * thresh * m / (F_REF * R_REF);
-
- /* Find out greatest common divisor and divide to smaller. */
- tmp = gcd(thresh, frac);
- thresh /= tmp;
- frac /= tmp;
-
- /* Force divide to reg max. Resolution will be reduced. */
- tmp = DIV_ROUND_UP(thresh, 4095);
- thresh = DIV_ROUND_CLOSEST(thresh, tmp);
- frac = DIV_ROUND_CLOSEST(frac, tmp);
-
- /* calc real RF set */
- tmp = 1ul * F_REF * R_REF * n;
- tmp += 1ul * F_REF * R_REF * frac / thresh;
- tmp /= lo_div;
-
- dev_dbg(&s->spi->dev,
- "%s: rf=%u:%u n=%d thresh=%d frac=%d\n",
- __func__, f_rf, tmp, n, thresh, frac);
-
- ret = msi001_wreg(s, 0x00000e);
- if (ret)
- goto err;
-
- ret = msi001_wreg(s, 0x000003);
- if (ret)
- goto err;
-
- reg = 0 << 0;
- reg |= mode << 4;
- reg |= filter_mode << 12;
- reg |= bandwidth << 14;
- reg |= 0x02 << 17;
- reg |= 0x00 << 20;
- ret = msi001_wreg(s, reg);
- if (ret)
- goto err;
-
- reg = 5 << 0;
- reg |= thresh << 4;
- reg |= 1 << 19;
- reg |= 1 << 21;
- ret = msi001_wreg(s, reg);
- if (ret)
- goto err;
-
- reg = 2 << 0;
- reg |= frac << 4;
- reg |= n << 16;
- ret = msi001_wreg(s, reg);
- if (ret)
- goto err;
-
- ret = msi001_set_gain(s, s->lna_gain->cur.val, s->mixer_gain->cur.val,
- s->if_gain->cur.val);
- if (ret)
- goto err;
-
- reg = 6 << 0;
- reg |= 63 << 4;
- reg |= 4095 << 10;
- ret = msi001_wreg(s, reg);
- if (ret)
- goto err;
-
- return 0;
-err:
- dev_dbg(&s->spi->dev, "%s: failed %d\n", __func__, ret);
- return ret;
-};
-
-static int msi001_s_power(struct v4l2_subdev *sd, int on)
-{
- struct msi001 *s = sd_to_msi001(sd);
- int ret;
- dev_dbg(&s->spi->dev, "%s: on=%d\n", __func__, on);
-
- if (on)
- ret = 0;
- else
- ret = msi001_wreg(s, 0x000000);
-
- return ret;
-}
-
-static const struct v4l2_subdev_core_ops msi001_core_ops = {
- .s_power = msi001_s_power,
-};
-
-static int msi001_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *v)
-{
- struct msi001 *s = sd_to_msi001(sd);
- dev_dbg(&s->spi->dev, "%s: index=%d\n", __func__, v->index);
-
- strlcpy(v->name, "Mirics MSi001", sizeof(v->name));
- v->type = V4L2_TUNER_RF;
- v->capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS;
- v->rangelow = 49000000;
- v->rangehigh = 960000000;
-
- return 0;
-}
-
-static int msi001_s_tuner(struct v4l2_subdev *sd, const struct v4l2_tuner *v)
-{
- struct msi001 *s = sd_to_msi001(sd);
- dev_dbg(&s->spi->dev, "%s: index=%d\n", __func__, v->index);
- return 0;
-}
-
-static int msi001_g_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *f)
-{
- struct msi001 *s = sd_to_msi001(sd);
- dev_dbg(&s->spi->dev, "%s: tuner=%d\n", __func__, f->tuner);
- f->frequency = s->f_tuner;
- return 0;
-}
-
-static int msi001_s_frequency(struct v4l2_subdev *sd,
- const struct v4l2_frequency *f)
-{
- struct msi001 *s = sd_to_msi001(sd);
- unsigned int band;
- dev_dbg(&s->spi->dev, "%s: tuner=%d type=%d frequency=%u\n",
- __func__, f->tuner, f->type, f->frequency);
-
- if (f->frequency < ((bands[0].rangehigh + bands[1].rangelow) / 2))
- band = 0;
- else
- band = 1;
- s->f_tuner = clamp_t(unsigned int, f->frequency,
- bands[band].rangelow, bands[band].rangehigh);
-
- return msi001_set_tuner(s);
-}
-
-static int msi001_enum_freq_bands(struct v4l2_subdev *sd,
- struct v4l2_frequency_band *band)
-{
- struct msi001 *s = sd_to_msi001(sd);
- dev_dbg(&s->spi->dev, "%s: tuner=%d type=%d index=%d\n",
- __func__, 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 msi001_tuner_ops = {
- .g_tuner = msi001_g_tuner,
- .s_tuner = msi001_s_tuner,
- .g_frequency = msi001_g_frequency,
- .s_frequency = msi001_s_frequency,
- .enum_freq_bands = msi001_enum_freq_bands,
-};
-
-static const struct v4l2_subdev_ops msi001_ops = {
- .core = &msi001_core_ops,
- .tuner = &msi001_tuner_ops,
-};
-
-static int msi001_s_ctrl(struct v4l2_ctrl *ctrl)
-{
- struct msi001 *s = container_of(ctrl->handler, struct msi001, hdl);
-
- int ret;
- dev_dbg(&s->spi->dev,
- "%s: id=%d name=%s val=%d min=%lld max=%lld step=%lld\n",
- __func__, ctrl->id, ctrl->name, ctrl->val,
- ctrl->minimum, ctrl->maximum, ctrl->step);
-
- switch (ctrl->id) {
- case V4L2_CID_RF_TUNER_BANDWIDTH_AUTO:
- case V4L2_CID_RF_TUNER_BANDWIDTH:
- ret = msi001_set_tuner(s);
- break;
- case V4L2_CID_RF_TUNER_LNA_GAIN:
- ret = msi001_set_gain(s, s->lna_gain->val,
- s->mixer_gain->cur.val, s->if_gain->cur.val);
- break;
- case V4L2_CID_RF_TUNER_MIXER_GAIN:
- ret = msi001_set_gain(s, s->lna_gain->cur.val,
- s->mixer_gain->val, s->if_gain->cur.val);
- break;
- case V4L2_CID_RF_TUNER_IF_GAIN:
- ret = msi001_set_gain(s, s->lna_gain->cur.val,
- s->mixer_gain->cur.val, s->if_gain->val);
- break;
- default:
- dev_dbg(&s->spi->dev, "%s: unkown control %d\n",
- __func__, ctrl->id);
- ret = -EINVAL;
- }
-
- return ret;
-}
-
-static const struct v4l2_ctrl_ops msi001_ctrl_ops = {
- .s_ctrl = msi001_s_ctrl,
-};
-
-static int msi001_probe(struct spi_device *spi)
-{
- struct msi001 *s;
- int ret;
- dev_dbg(&spi->dev, "%s:\n", __func__);
-
- s = kzalloc(sizeof(struct msi001), GFP_KERNEL);
- if (s == NULL) {
- ret = -ENOMEM;
- dev_dbg(&spi->dev, "Could not allocate memory for msi001\n");
- goto err_kfree;
- }
-
- s->spi = spi;
- s->f_tuner = bands[0].rangelow;
- v4l2_spi_subdev_init(&s->sd, spi, &msi001_ops);
-
- /* Register controls */
- v4l2_ctrl_handler_init(&s->hdl, 5);
- s->bandwidth_auto = v4l2_ctrl_new_std(&s->hdl, &msi001_ctrl_ops,
- V4L2_CID_RF_TUNER_BANDWIDTH_AUTO, 0, 1, 1, 1);
- s->bandwidth = v4l2_ctrl_new_std(&s->hdl, &msi001_ctrl_ops,
- V4L2_CID_RF_TUNER_BANDWIDTH, 200000, 8000000, 1, 200000);
- v4l2_ctrl_auto_cluster(2, &s->bandwidth_auto, 0, false);
- s->lna_gain = v4l2_ctrl_new_std(&s->hdl, &msi001_ctrl_ops,
- V4L2_CID_RF_TUNER_LNA_GAIN, 0, 1, 1, 1);
- s->mixer_gain = v4l2_ctrl_new_std(&s->hdl, &msi001_ctrl_ops,
- V4L2_CID_RF_TUNER_MIXER_GAIN, 0, 1, 1, 1);
- s->if_gain = v4l2_ctrl_new_std(&s->hdl, &msi001_ctrl_ops,
- V4L2_CID_RF_TUNER_IF_GAIN, 0, 59, 1, 0);
- if (s->hdl.error) {
- ret = s->hdl.error;
- dev_err(&s->spi->dev, "Could not initialize controls\n");
- /* control init failed, free handler */
- goto err_ctrl_handler_free;
- }
-
- s->sd.ctrl_handler = &s->hdl;
- return 0;
-
-err_ctrl_handler_free:
- v4l2_ctrl_handler_free(&s->hdl);
-err_kfree:
- kfree(s);
- return ret;
-}
-
-static int msi001_remove(struct spi_device *spi)
-{
- struct v4l2_subdev *sd = spi_get_drvdata(spi);
- struct msi001 *s = sd_to_msi001(sd);
- dev_dbg(&spi->dev, "%s:\n", __func__);
-
- /*
- * Registered by v4l2_spi_new_subdev() from master driver, but we must
- * unregister it from here. Weird.
- */
- v4l2_device_unregister_subdev(&s->sd);
- v4l2_ctrl_handler_free(&s->hdl);
- kfree(s);
- return 0;
-}
-
-static const struct spi_device_id msi001_id[] = {
- {"msi001", 0},
- {}
-};
-MODULE_DEVICE_TABLE(spi, msi001_id);
-
-static struct spi_driver msi001_driver = {
- .driver = {
- .name = "msi001",
- .owner = THIS_MODULE,
- },
- .probe = msi001_probe,
- .remove = msi001_remove,
- .id_table = msi001_id,
-};
-module_spi_driver(msi001_driver);
-
-MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
-MODULE_DESCRIPTION("Mirics MSi001");
-MODULE_LICENSE("GPL");
projects / GitHub / LineageOS / android_kernel_motorola_exynos9610.git / commitdiff