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9958d30f38
media Kconfig has two entries associated to V4L API: VIDEO_DEV and VIDEO_V4L2. On Kernel 2.6.x, there were two V4L APIs, each one with its own flag. VIDEO_DEV were meant to: 1) enable Video4Linux and make its Kconfig options to appear; 2) it makes the Kernel build the V4L core. while VIDEO_V4L2 where used to distinguish between drivers that implement the newer API and drivers that implemented the former one. With time, such meaning changed, specially after the removal of all V4L version 1 drivers. At the current implementation, VIDEO_DEV only does (1): it enables the media options related to V4L, that now has: menu "Video4Linux options" visible if VIDEO_DEV source "drivers/media/v4l2-core/Kconfig" endmenu but it doesn't affect anymore the V4L core drivers. The rationale is that the V4L2 core has a "soft" dependency at the I2C bus, and now requires to select a number of other Kconfig options: config VIDEO_V4L2 tristate depends on (I2C || I2C=n) && VIDEO_DEV select RATIONAL select VIDEOBUF2_V4L2 if VIDEOBUF2_CORE default (I2C || I2C=n) && VIDEO_DEV In the past, merging them would be tricky, but it seems that it is now possible to merge those symbols, in order to simplify V4L dependencies. Let's keep VIDEO_DEV, as this one is used on some make *defconfig configurations. Suggested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Neil Armstrong <narmstrong@baylibre.com> # for meson-vdec & meson-ge2d Acked-by: Andrzej Pietrasiewicz <andrzejtp2010@gmail.com> Acked-by: Łukasz Stelmach <l.stelmach@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
745 lines
17 KiB
C
745 lines
17 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Elonics E4000 silicon tuner driver
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*
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* Copyright (C) 2012 Antti Palosaari <crope@iki.fi>
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*/
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#include "e4000_priv.h"
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static int e4000_init(struct e4000_dev *dev)
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{
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struct i2c_client *client = dev->client;
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int ret;
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dev_dbg(&client->dev, "\n");
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/* reset */
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ret = regmap_write(dev->regmap, 0x00, 0x01);
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if (ret)
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goto err;
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/* disable output clock */
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ret = regmap_write(dev->regmap, 0x06, 0x00);
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if (ret)
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goto err;
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ret = regmap_write(dev->regmap, 0x7a, 0x96);
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if (ret)
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goto err;
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/* configure gains */
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ret = regmap_bulk_write(dev->regmap, 0x7e, "\x01\xfe", 2);
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if (ret)
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goto err;
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ret = regmap_write(dev->regmap, 0x82, 0x00);
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if (ret)
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goto err;
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ret = regmap_write(dev->regmap, 0x24, 0x05);
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if (ret)
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goto err;
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ret = regmap_bulk_write(dev->regmap, 0x87, "\x20\x01", 2);
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if (ret)
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goto err;
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ret = regmap_bulk_write(dev->regmap, 0x9f, "\x7f\x07", 2);
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if (ret)
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goto err;
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/* DC offset control */
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ret = regmap_write(dev->regmap, 0x2d, 0x1f);
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if (ret)
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goto err;
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ret = regmap_bulk_write(dev->regmap, 0x70, "\x01\x01", 2);
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if (ret)
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goto err;
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/* gain control */
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ret = regmap_write(dev->regmap, 0x1a, 0x17);
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if (ret)
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goto err;
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ret = regmap_write(dev->regmap, 0x1f, 0x1a);
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if (ret)
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goto err;
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dev->active = true;
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return 0;
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err:
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dev_dbg(&client->dev, "failed=%d\n", ret);
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return ret;
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}
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static int e4000_sleep(struct e4000_dev *dev)
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{
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struct i2c_client *client = dev->client;
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int ret;
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dev_dbg(&client->dev, "\n");
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dev->active = false;
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ret = regmap_write(dev->regmap, 0x00, 0x00);
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if (ret)
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goto err;
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return 0;
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err:
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dev_dbg(&client->dev, "failed=%d\n", ret);
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return ret;
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}
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static int e4000_set_params(struct e4000_dev *dev)
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{
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struct i2c_client *client = dev->client;
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int ret, i;
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unsigned int div_n, k, k_cw, div_out;
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u64 f_vco;
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u8 buf[5], i_data[4], q_data[4];
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if (!dev->active) {
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dev_dbg(&client->dev, "tuner is sleeping\n");
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return 0;
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}
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/* gain control manual */
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ret = regmap_write(dev->regmap, 0x1a, 0x00);
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if (ret)
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goto err;
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/*
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* Fractional-N synthesizer
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*
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* +----------------------------+
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* v |
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* Fref +----+ +-------+ +------+ +---+
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* ------> | PD | --> | VCO | ------> | /N.F | <-- | K |
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* +----+ +-------+ +------+ +---+
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* |
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* |
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* v
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* +-------+ Fout
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* | /Rout | ------>
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* +-------+
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*/
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for (i = 0; i < ARRAY_SIZE(e4000_pll_lut); i++) {
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if (dev->f_frequency <= e4000_pll_lut[i].freq)
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break;
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}
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if (i == ARRAY_SIZE(e4000_pll_lut)) {
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ret = -EINVAL;
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goto err;
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}
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#define F_REF dev->clk
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div_out = e4000_pll_lut[i].div_out;
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f_vco = (u64) dev->f_frequency * div_out;
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/* calculate PLL integer and fractional control word */
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div_n = div_u64_rem(f_vco, F_REF, &k);
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k_cw = div_u64((u64) k * 0x10000, F_REF);
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dev_dbg(&client->dev,
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"frequency=%u bandwidth=%u f_vco=%llu F_REF=%u div_n=%u k=%u k_cw=%04x div_out=%u\n",
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dev->f_frequency, dev->f_bandwidth, f_vco, F_REF, div_n, k,
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k_cw, div_out);
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buf[0] = div_n;
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buf[1] = (k_cw >> 0) & 0xff;
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buf[2] = (k_cw >> 8) & 0xff;
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buf[3] = 0x00;
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buf[4] = e4000_pll_lut[i].div_out_reg;
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ret = regmap_bulk_write(dev->regmap, 0x09, buf, 5);
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if (ret)
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goto err;
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/* LNA filter (RF filter) */
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for (i = 0; i < ARRAY_SIZE(e400_lna_filter_lut); i++) {
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if (dev->f_frequency <= e400_lna_filter_lut[i].freq)
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break;
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}
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if (i == ARRAY_SIZE(e400_lna_filter_lut)) {
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ret = -EINVAL;
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goto err;
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}
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ret = regmap_write(dev->regmap, 0x10, e400_lna_filter_lut[i].val);
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if (ret)
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goto err;
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/* IF filters */
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for (i = 0; i < ARRAY_SIZE(e4000_if_filter_lut); i++) {
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if (dev->f_bandwidth <= e4000_if_filter_lut[i].freq)
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break;
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}
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if (i == ARRAY_SIZE(e4000_if_filter_lut)) {
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ret = -EINVAL;
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goto err;
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}
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buf[0] = e4000_if_filter_lut[i].reg11_val;
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buf[1] = e4000_if_filter_lut[i].reg12_val;
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ret = regmap_bulk_write(dev->regmap, 0x11, buf, 2);
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if (ret)
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goto err;
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/* frequency band */
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for (i = 0; i < ARRAY_SIZE(e4000_band_lut); i++) {
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if (dev->f_frequency <= e4000_band_lut[i].freq)
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break;
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}
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if (i == ARRAY_SIZE(e4000_band_lut)) {
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ret = -EINVAL;
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goto err;
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}
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ret = regmap_write(dev->regmap, 0x07, e4000_band_lut[i].reg07_val);
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if (ret)
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goto err;
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ret = regmap_write(dev->regmap, 0x78, e4000_band_lut[i].reg78_val);
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if (ret)
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goto err;
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/* DC offset */
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for (i = 0; i < 4; i++) {
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if (i == 0)
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ret = regmap_bulk_write(dev->regmap, 0x15, "\x00\x7e\x24", 3);
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else if (i == 1)
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ret = regmap_bulk_write(dev->regmap, 0x15, "\x00\x7f", 2);
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else if (i == 2)
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ret = regmap_bulk_write(dev->regmap, 0x15, "\x01", 1);
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else
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ret = regmap_bulk_write(dev->regmap, 0x16, "\x7e", 1);
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if (ret)
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goto err;
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ret = regmap_write(dev->regmap, 0x29, 0x01);
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if (ret)
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goto err;
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ret = regmap_bulk_read(dev->regmap, 0x2a, buf, 3);
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if (ret)
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goto err;
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i_data[i] = (((buf[2] >> 0) & 0x3) << 6) | (buf[0] & 0x3f);
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q_data[i] = (((buf[2] >> 4) & 0x3) << 6) | (buf[1] & 0x3f);
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}
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swap(q_data[2], q_data[3]);
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swap(i_data[2], i_data[3]);
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ret = regmap_bulk_write(dev->regmap, 0x50, q_data, 4);
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if (ret)
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goto err;
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ret = regmap_bulk_write(dev->regmap, 0x60, i_data, 4);
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if (ret)
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goto err;
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/* gain control auto */
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ret = regmap_write(dev->regmap, 0x1a, 0x17);
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if (ret)
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goto err;
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return 0;
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err:
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dev_dbg(&client->dev, "failed=%d\n", ret);
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return ret;
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}
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/*
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* V4L2 API
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*/
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#if IS_ENABLED(CONFIG_VIDEO_DEV)
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static const struct v4l2_frequency_band bands[] = {
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{
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.type = V4L2_TUNER_RF,
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.index = 0,
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.capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS,
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.rangelow = 59000000,
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.rangehigh = 1105000000,
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},
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{
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.type = V4L2_TUNER_RF,
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.index = 1,
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.capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS,
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.rangelow = 1249000000,
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.rangehigh = 2208000000UL,
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},
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};
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static inline struct e4000_dev *e4000_subdev_to_dev(struct v4l2_subdev *sd)
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{
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return container_of(sd, struct e4000_dev, sd);
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}
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static int e4000_standby(struct v4l2_subdev *sd)
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{
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struct e4000_dev *dev = e4000_subdev_to_dev(sd);
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int ret;
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ret = e4000_sleep(dev);
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if (ret)
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return ret;
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return e4000_set_params(dev);
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}
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static int e4000_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *v)
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{
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struct e4000_dev *dev = e4000_subdev_to_dev(sd);
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struct i2c_client *client = dev->client;
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dev_dbg(&client->dev, "index=%d\n", v->index);
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strscpy(v->name, "Elonics E4000", sizeof(v->name));
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v->type = V4L2_TUNER_RF;
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v->capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS;
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v->rangelow = bands[0].rangelow;
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v->rangehigh = bands[1].rangehigh;
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return 0;
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}
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static int e4000_s_tuner(struct v4l2_subdev *sd, const struct v4l2_tuner *v)
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{
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struct e4000_dev *dev = e4000_subdev_to_dev(sd);
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struct i2c_client *client = dev->client;
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dev_dbg(&client->dev, "index=%d\n", v->index);
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return 0;
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}
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static int e4000_g_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *f)
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{
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struct e4000_dev *dev = e4000_subdev_to_dev(sd);
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struct i2c_client *client = dev->client;
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dev_dbg(&client->dev, "tuner=%d\n", f->tuner);
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f->frequency = dev->f_frequency;
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return 0;
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}
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static int e4000_s_frequency(struct v4l2_subdev *sd,
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const struct v4l2_frequency *f)
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{
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struct e4000_dev *dev = e4000_subdev_to_dev(sd);
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struct i2c_client *client = dev->client;
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dev_dbg(&client->dev, "tuner=%d type=%d frequency=%u\n",
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f->tuner, f->type, f->frequency);
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dev->f_frequency = clamp_t(unsigned int, f->frequency,
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bands[0].rangelow, bands[1].rangehigh);
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return e4000_set_params(dev);
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}
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static int e4000_enum_freq_bands(struct v4l2_subdev *sd,
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struct v4l2_frequency_band *band)
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{
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struct e4000_dev *dev = e4000_subdev_to_dev(sd);
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struct i2c_client *client = dev->client;
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dev_dbg(&client->dev, "tuner=%d type=%d index=%d\n",
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band->tuner, band->type, band->index);
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if (band->index >= ARRAY_SIZE(bands))
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return -EINVAL;
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band->capability = bands[band->index].capability;
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band->rangelow = bands[band->index].rangelow;
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band->rangehigh = bands[band->index].rangehigh;
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return 0;
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}
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static const struct v4l2_subdev_tuner_ops e4000_subdev_tuner_ops = {
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.standby = e4000_standby,
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.g_tuner = e4000_g_tuner,
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.s_tuner = e4000_s_tuner,
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.g_frequency = e4000_g_frequency,
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.s_frequency = e4000_s_frequency,
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.enum_freq_bands = e4000_enum_freq_bands,
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};
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static const struct v4l2_subdev_ops e4000_subdev_ops = {
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.tuner = &e4000_subdev_tuner_ops,
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};
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static int e4000_set_lna_gain(struct dvb_frontend *fe)
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{
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struct e4000_dev *dev = fe->tuner_priv;
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struct i2c_client *client = dev->client;
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int ret;
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u8 u8tmp;
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dev_dbg(&client->dev, "lna auto=%d->%d val=%d->%d\n",
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dev->lna_gain_auto->cur.val, dev->lna_gain_auto->val,
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dev->lna_gain->cur.val, dev->lna_gain->val);
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if (dev->lna_gain_auto->val && dev->if_gain_auto->cur.val)
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u8tmp = 0x17;
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else if (dev->lna_gain_auto->val)
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u8tmp = 0x19;
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else if (dev->if_gain_auto->cur.val)
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u8tmp = 0x16;
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else
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u8tmp = 0x10;
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ret = regmap_write(dev->regmap, 0x1a, u8tmp);
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if (ret)
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goto err;
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if (dev->lna_gain_auto->val == false) {
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ret = regmap_write(dev->regmap, 0x14, dev->lna_gain->val);
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if (ret)
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goto err;
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}
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return 0;
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err:
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dev_dbg(&client->dev, "failed=%d\n", ret);
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return ret;
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}
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static int e4000_set_mixer_gain(struct dvb_frontend *fe)
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{
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struct e4000_dev *dev = fe->tuner_priv;
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struct i2c_client *client = dev->client;
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int ret;
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u8 u8tmp;
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dev_dbg(&client->dev, "mixer auto=%d->%d val=%d->%d\n",
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dev->mixer_gain_auto->cur.val, dev->mixer_gain_auto->val,
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dev->mixer_gain->cur.val, dev->mixer_gain->val);
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if (dev->mixer_gain_auto->val)
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u8tmp = 0x15;
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else
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u8tmp = 0x14;
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ret = regmap_write(dev->regmap, 0x20, u8tmp);
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if (ret)
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goto err;
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if (dev->mixer_gain_auto->val == false) {
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ret = regmap_write(dev->regmap, 0x15, dev->mixer_gain->val);
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if (ret)
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goto err;
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}
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return 0;
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err:
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dev_dbg(&client->dev, "failed=%d\n", ret);
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return ret;
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}
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static int e4000_set_if_gain(struct dvb_frontend *fe)
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{
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struct e4000_dev *dev = fe->tuner_priv;
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struct i2c_client *client = dev->client;
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int ret;
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u8 buf[2];
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u8 u8tmp;
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dev_dbg(&client->dev, "if auto=%d->%d val=%d->%d\n",
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dev->if_gain_auto->cur.val, dev->if_gain_auto->val,
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dev->if_gain->cur.val, dev->if_gain->val);
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if (dev->if_gain_auto->val && dev->lna_gain_auto->cur.val)
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u8tmp = 0x17;
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else if (dev->lna_gain_auto->cur.val)
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u8tmp = 0x19;
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else if (dev->if_gain_auto->val)
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u8tmp = 0x16;
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else
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u8tmp = 0x10;
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|
|
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;
|
|
}
|
|
|
|
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_g_volatile_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_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_dvb_tuner_ops = {
|
|
.info = {
|
|
.name = "Elonics E4000",
|
|
.frequency_min_hz = 174 * MHz,
|
|
.frequency_max_hz = 862 * MHz,
|
|
},
|
|
|
|
.init = e4000_dvb_init,
|
|
.sleep = e4000_dvb_sleep,
|
|
.set_params = e4000_dvb_set_params,
|
|
|
|
.get_if_frequency = e4000_dvb_get_if_frequency,
|
|
};
|
|
|
|
static int e4000_probe(struct i2c_client *client,
|
|
const struct i2c_device_id *id)
|
|
{
|
|
struct e4000_dev *dev;
|
|
struct e4000_config *cfg = client->dev.platform_data;
|
|
struct dvb_frontend *fe = cfg->fe;
|
|
int ret;
|
|
unsigned int uitmp;
|
|
static const struct regmap_config regmap_config = {
|
|
.reg_bits = 8,
|
|
.val_bits = 8,
|
|
};
|
|
|
|
dev = kzalloc(sizeof(*dev), GFP_KERNEL);
|
|
if (!dev) {
|
|
ret = -ENOMEM;
|
|
goto err;
|
|
}
|
|
|
|
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 = 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 = regmap_write(dev->regmap, 0x00, 0x00);
|
|
if (ret)
|
|
goto err_kfree;
|
|
|
|
#if IS_ENABLED(CONFIG_VIDEO_DEV)
|
|
/* 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->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);
|
|
|
|
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);
|
|
|
|
dev_dbg(&client->dev, "\n");
|
|
|
|
#if IS_ENABLED(CONFIG_VIDEO_DEV)
|
|
v4l2_ctrl_handler_free(&dev->hdl);
|
|
#endif
|
|
kfree(dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
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 <crope@iki.fi>");
|
|
MODULE_LICENSE("GPL");
|