[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/drivers/media/tuners/msi001.c b/src/kernel/linux/v4.14/drivers/media/tuners/msi001.c
new file mode 100644
index 0000000..3a12ef3
--- /dev/null
+++ b/src/kernel/linux/v4.14/drivers/media/tuners/msi001.c
@@ -0,0 +1,526 @@
+/*
+ * 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_dev {
+ 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_dev *sd_to_msi001_dev(struct v4l2_subdev *sd)
+{
+ return container_of(sd, struct msi001_dev, sd);
+}
+
+static int msi001_wreg(struct msi001_dev *dev, u32 data)
+{
+ /* Register format: 4 bits addr + 20 bits value */
+ return spi_write(dev->spi, &data, 3);
+};
+
+static int msi001_set_gain(struct msi001_dev *dev, int lna_gain, int mixer_gain,
+ int if_gain)
+{
+ struct spi_device *spi = dev->spi;
+ int ret;
+ u32 reg;
+
+ dev_dbg(&spi->dev, "lna=%d mixer=%d if=%d\n",
+ 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(dev, reg);
+ if (ret)
+ goto err;
+
+ return 0;
+err:
+ dev_dbg(&spi->dev, "failed %d\n", ret);
+ return ret;
+};
+
+static int msi001_set_tuner(struct msi001_dev *dev)
+{
+ struct spi_device *spi = dev->spi;
+ int ret, i;
+ unsigned int uitmp, div_n, k, k_thresh, k_frac, div_lo, f_if1;
+ u32 reg;
+ u64 f_vco;
+ u8 mode, filter_mode;
+
+ static const struct {
+ u32 rf;
+ u8 mode;
+ u8 div_lo;
+ } 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 = dev->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 DIV_PRE_N 4
+ #define F_VCO_STEP div_lo
+
+ dev_dbg(&spi->dev, "f_rf=%d f_if=%d\n", 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;
+ div_lo = band_lut[i].div_lo;
+ 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 = dev->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;
+ }
+
+ dev->bandwidth->val = bandwidth_lut[i].freq;
+
+ dev_dbg(&spi->dev, "bandwidth selected=%d\n", bandwidth_lut[i].freq);
+
+ /*
+ * Fractional-N synthesizer
+ *
+ * +---------------------------------------+
+ * v |
+ * Fref +----+ +-------+ +----+ +------+ +---+
+ * ------> | PD | --> | VCO | ------> | /4 | --> | /N.F | <-- | K |
+ * +----+ +-------+ +----+ +------+ +---+
+ * |
+ * |
+ * v
+ * +-------+ Fout
+ * | /Rout | ------>
+ * +-------+
+ */
+
+ /* Calculate PLL integer and fractional control word. */
+ f_vco = (u64) (f_rf + f_if + f_if1) * div_lo;
+ div_n = div_u64_rem(f_vco, DIV_PRE_N * F_REF, &k);
+ k_thresh = (DIV_PRE_N * F_REF) / F_VCO_STEP;
+ k_frac = div_u64((u64) k * k_thresh, (DIV_PRE_N * F_REF));
+
+ /* Find out greatest common divisor and divide to smaller. */
+ uitmp = gcd(k_thresh, k_frac);
+ k_thresh /= uitmp;
+ k_frac /= uitmp;
+
+ /* Force divide to reg max. Resolution will be reduced. */
+ uitmp = DIV_ROUND_UP(k_thresh, 4095);
+ k_thresh = DIV_ROUND_CLOSEST(k_thresh, uitmp);
+ k_frac = DIV_ROUND_CLOSEST(k_frac, uitmp);
+
+ /* Calculate real RF set. */
+ uitmp = (unsigned int) F_REF * DIV_PRE_N * div_n;
+ uitmp += (unsigned int) F_REF * DIV_PRE_N * k_frac / k_thresh;
+ uitmp /= div_lo;
+
+ dev_dbg(&spi->dev,
+ "f_rf=%u:%u f_vco=%llu div_n=%u k_thresh=%u k_frac=%u div_lo=%u\n",
+ f_rf, uitmp, f_vco, div_n, k_thresh, k_frac, div_lo);
+
+ ret = msi001_wreg(dev, 0x00000e);
+ if (ret)
+ goto err;
+
+ ret = msi001_wreg(dev, 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(dev, reg);
+ if (ret)
+ goto err;
+
+ reg = 5 << 0;
+ reg |= k_thresh << 4;
+ reg |= 1 << 19;
+ reg |= 1 << 21;
+ ret = msi001_wreg(dev, reg);
+ if (ret)
+ goto err;
+
+ reg = 2 << 0;
+ reg |= k_frac << 4;
+ reg |= div_n << 16;
+ ret = msi001_wreg(dev, reg);
+ if (ret)
+ goto err;
+
+ ret = msi001_set_gain(dev, dev->lna_gain->cur.val,
+ dev->mixer_gain->cur.val, dev->if_gain->cur.val);
+ if (ret)
+ goto err;
+
+ reg = 6 << 0;
+ reg |= 63 << 4;
+ reg |= 4095 << 10;
+ ret = msi001_wreg(dev, reg);
+ if (ret)
+ goto err;
+
+ return 0;
+err:
+ dev_dbg(&spi->dev, "failed %d\n", ret);
+ return ret;
+}
+
+static int msi001_s_power(struct v4l2_subdev *sd, int on)
+{
+ struct msi001_dev *dev = sd_to_msi001_dev(sd);
+ struct spi_device *spi = dev->spi;
+ int ret;
+
+ dev_dbg(&spi->dev, "on=%d\n", on);
+
+ if (on)
+ ret = 0;
+ else
+ ret = msi001_wreg(dev, 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_dev *dev = sd_to_msi001_dev(sd);
+ struct spi_device *spi = dev->spi;
+
+ dev_dbg(&spi->dev, "index=%d\n", 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_dev *dev = sd_to_msi001_dev(sd);
+ struct spi_device *spi = dev->spi;
+
+ dev_dbg(&spi->dev, "index=%d\n", v->index);
+ return 0;
+}
+
+static int msi001_g_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *f)
+{
+ struct msi001_dev *dev = sd_to_msi001_dev(sd);
+ struct spi_device *spi = dev->spi;
+
+ dev_dbg(&spi->dev, "tuner=%d\n", f->tuner);
+ f->frequency = dev->f_tuner;
+ return 0;
+}
+
+static int msi001_s_frequency(struct v4l2_subdev *sd,
+ const struct v4l2_frequency *f)
+{
+ struct msi001_dev *dev = sd_to_msi001_dev(sd);
+ struct spi_device *spi = dev->spi;
+ unsigned int band;
+
+ dev_dbg(&spi->dev, "tuner=%d type=%d frequency=%u\n",
+ f->tuner, f->type, f->frequency);
+
+ if (f->frequency < ((bands[0].rangehigh + bands[1].rangelow) / 2))
+ band = 0;
+ else
+ band = 1;
+ dev->f_tuner = clamp_t(unsigned int, f->frequency,
+ bands[band].rangelow, bands[band].rangehigh);
+
+ return msi001_set_tuner(dev);
+}
+
+static int msi001_enum_freq_bands(struct v4l2_subdev *sd,
+ struct v4l2_frequency_band *band)
+{
+ struct msi001_dev *dev = sd_to_msi001_dev(sd);
+ struct spi_device *spi = dev->spi;
+
+ dev_dbg(&spi->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 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_dev *dev = container_of(ctrl->handler, struct msi001_dev, hdl);
+ struct spi_device *spi = dev->spi;
+
+ int ret;
+
+ dev_dbg(&spi->dev, "id=%d name=%s val=%d min=%lld max=%lld step=%lld\n",
+ 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(dev);
+ break;
+ case V4L2_CID_RF_TUNER_LNA_GAIN:
+ ret = msi001_set_gain(dev, dev->lna_gain->val,
+ dev->mixer_gain->cur.val,
+ dev->if_gain->cur.val);
+ break;
+ case V4L2_CID_RF_TUNER_MIXER_GAIN:
+ ret = msi001_set_gain(dev, dev->lna_gain->cur.val,
+ dev->mixer_gain->val,
+ dev->if_gain->cur.val);
+ break;
+ case V4L2_CID_RF_TUNER_IF_GAIN:
+ ret = msi001_set_gain(dev, dev->lna_gain->cur.val,
+ dev->mixer_gain->cur.val,
+ dev->if_gain->val);
+ break;
+ default:
+ dev_dbg(&spi->dev, "unknown control %d\n", 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_dev *dev;
+ int ret;
+
+ dev_dbg(&spi->dev, "\n");
+
+ dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+ if (!dev) {
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ dev->spi = spi;
+ dev->f_tuner = bands[0].rangelow;
+ v4l2_spi_subdev_init(&dev->sd, spi, &msi001_ops);
+
+ /* Register controls */
+ v4l2_ctrl_handler_init(&dev->hdl, 5);
+ dev->bandwidth_auto = v4l2_ctrl_new_std(&dev->hdl, &msi001_ctrl_ops,
+ V4L2_CID_RF_TUNER_BANDWIDTH_AUTO, 0, 1, 1, 1);
+ dev->bandwidth = v4l2_ctrl_new_std(&dev->hdl, &msi001_ctrl_ops,
+ V4L2_CID_RF_TUNER_BANDWIDTH, 200000, 8000000, 1, 200000);
+ v4l2_ctrl_auto_cluster(2, &dev->bandwidth_auto, 0, false);
+ dev->lna_gain = v4l2_ctrl_new_std(&dev->hdl, &msi001_ctrl_ops,
+ V4L2_CID_RF_TUNER_LNA_GAIN, 0, 1, 1, 1);
+ dev->mixer_gain = v4l2_ctrl_new_std(&dev->hdl, &msi001_ctrl_ops,
+ V4L2_CID_RF_TUNER_MIXER_GAIN, 0, 1, 1, 1);
+ dev->if_gain = v4l2_ctrl_new_std(&dev->hdl, &msi001_ctrl_ops,
+ V4L2_CID_RF_TUNER_IF_GAIN, 0, 59, 1, 0);
+ if (dev->hdl.error) {
+ ret = dev->hdl.error;
+ dev_err(&spi->dev, "Could not initialize controls\n");
+ /* control init failed, free handler */
+ goto err_ctrl_handler_free;
+ }
+
+ dev->sd.ctrl_handler = &dev->hdl;
+ return 0;
+err_ctrl_handler_free:
+ v4l2_ctrl_handler_free(&dev->hdl);
+ kfree(dev);
+err:
+ return ret;
+}
+
+static int msi001_remove(struct spi_device *spi)
+{
+ struct v4l2_subdev *sd = spi_get_drvdata(spi);
+ struct msi001_dev *dev = sd_to_msi001_dev(sd);
+
+ dev_dbg(&spi->dev, "\n");
+
+ /*
+ * Registered by v4l2_spi_new_subdev() from master driver, but we must
+ * unregister it from here. Weird.
+ */
+ v4l2_device_unregister_subdev(&dev->sd);
+ v4l2_ctrl_handler_free(&dev->hdl);
+ kfree(dev);
+ return 0;
+}
+
+static const struct spi_device_id msi001_id_table[] = {
+ {"msi001", 0},
+ {}
+};
+MODULE_DEVICE_TABLE(spi, msi001_id_table);
+
+static struct spi_driver msi001_driver = {
+ .driver = {
+ .name = "msi001",
+ .suppress_bind_attrs = true,
+ },
+ .probe = msi001_probe,
+ .remove = msi001_remove,
+ .id_table = msi001_id_table,
+};
+module_spi_driver(msi001_driver);
+
+MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
+MODULE_DESCRIPTION("Mirics MSi001");
+MODULE_LICENSE("GPL");