forked from Minki/linux
252fad1cee
Implement V4L2 subdevice for bandwidth and frequency controls of SDR usage. That driver now implements both DVB frontend and V4L2 subdevice. Driver itself is I2C driver. Lets see how it works. Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
148 lines
3.5 KiB
C
148 lines
3.5 KiB
C
/*
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* FCI FC2580 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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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef FC2580_PRIV_H
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#define FC2580_PRIV_H
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#include "fc2580.h"
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#include <media/v4l2-ctrls.h>
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#include <media/v4l2-subdev.h>
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#include <linux/regmap.h>
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#include <linux/math64.h>
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struct fc2580_reg_val {
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u8 reg;
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u8 val;
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};
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static const struct fc2580_reg_val fc2580_init_reg_vals[] = {
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{0x00, 0x00},
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{0x12, 0x86},
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{0x14, 0x5c},
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{0x16, 0x3c},
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{0x1f, 0xd2},
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{0x09, 0xd7},
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{0x0b, 0xd5},
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{0x0c, 0x32},
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{0x0e, 0x43},
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{0x21, 0x0a},
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{0x22, 0x82},
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{0x45, 0x10},
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{0x4c, 0x00},
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{0x3f, 0x88},
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{0x02, 0x0e},
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{0x58, 0x14},
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};
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struct fc2580_pll {
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u32 freq;
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u8 div_out;
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u8 band;
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};
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static const struct fc2580_pll fc2580_pll_lut[] = {
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/* VCO min VCO max */
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{ 400000000, 12, 0x80}, /* .......... 4800000000 */
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{1000000000, 4, 0x00}, /* 1600000000 4000000000 */
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{0xffffffff, 2, 0x40}, /* 2000000000 .......... */
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};
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struct fc2580_if_filter {
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u32 freq;
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u8 r36_val;
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u8 r39_val;
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};
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static const struct fc2580_if_filter fc2580_if_filter_lut[] = {
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{ 6000000, 0x18, 0x00},
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{ 7000000, 0x18, 0x80},
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{ 8000000, 0x18, 0x80},
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{0xffffffff, 0x18, 0x80},
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};
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struct fc2580_freq_regs {
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u32 freq;
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u8 r25_val;
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u8 r27_val;
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u8 r28_val;
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u8 r29_val;
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u8 r2b_val;
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u8 r2c_val;
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u8 r2d_val;
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u8 r30_val;
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u8 r44_val;
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u8 r50_val;
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u8 r53_val;
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u8 r5f_val;
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u8 r61_val;
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u8 r62_val;
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u8 r63_val;
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u8 r67_val;
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u8 r68_val;
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u8 r69_val;
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u8 r6a_val;
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u8 r6b_val;
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u8 r6c_val;
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u8 r6d_val;
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u8 r6e_val;
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u8 r6f_val;
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};
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/* XXX: 0xff is used for don't-care! */
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static const struct fc2580_freq_regs fc2580_freq_regs_lut[] = {
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{ 400000000,
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0xff, 0x77, 0x33, 0x40, 0xff, 0xff, 0xff, 0x09, 0xff, 0x8c,
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0x50, 0x0f, 0x07, 0x00, 0x15, 0x03, 0x05, 0x10, 0x12, 0x08,
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0x0a, 0x78, 0x32, 0x54},
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{ 538000000,
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0xf0, 0x77, 0x53, 0x60, 0xff, 0xff, 0x9f, 0x09, 0xff, 0x8c,
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0x50, 0x13, 0x07, 0x06, 0x15, 0x06, 0x08, 0x10, 0x12, 0x0b,
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0x0c, 0x78, 0x32, 0x14},
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{ 794000000,
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0xf0, 0x77, 0x53, 0x60, 0xff, 0xff, 0x9f, 0x09, 0xff, 0x8c,
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0x50, 0x15, 0x03, 0x03, 0x15, 0x03, 0x05, 0x0c, 0x0e, 0x0b,
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0x0c, 0x78, 0x32, 0x14},
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{1000000000,
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0xf0, 0x77, 0x53, 0x60, 0xff, 0xff, 0x8f, 0x09, 0xff, 0x8c,
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0x50, 0x15, 0x07, 0x06, 0x15, 0x07, 0x09, 0x10, 0x12, 0x0b,
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0x0c, 0x78, 0x32, 0x14},
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{0xffffffff,
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0xff, 0xff, 0xff, 0xff, 0x70, 0x37, 0xe7, 0x09, 0x20, 0x8c,
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0x50, 0x0f, 0x0f, 0x00, 0x13, 0x00, 0x02, 0x0c, 0x0e, 0x08,
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0x0a, 0xa0, 0x50, 0x14},
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};
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struct fc2580_dev {
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u32 clk;
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struct i2c_client *client;
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struct regmap *regmap;
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struct v4l2_subdev subdev;
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bool active;
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unsigned int f_frequency;
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unsigned int f_bandwidth;
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/* Controls */
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struct v4l2_ctrl_handler hdl;
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struct v4l2_ctrl *bandwidth_auto;
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struct v4l2_ctrl *bandwidth;
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};
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#endif
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