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120 lines
2.6 KiB
C
120 lines
2.6 KiB
C
/*
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* Rafael Micro R820T/R828D driver
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*
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* Copyright (C) 2013 Mauro Carvalho Chehab <mchehab@redhat.com>
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* Copyright (C) 2013 Steve Markgraf <steve@steve-m.de>
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*
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* This driver is a heavily modified version of the driver found in the
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* Linux kernel:
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* http://git.linuxtv.org/linux-2.6.git/history/HEAD:/drivers/media/tuners/r820t.c
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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
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef R82XX_H
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#define R82XX_H
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#define R820T_I2C_ADDR 0x34
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#define R828D_I2C_ADDR 0x74
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#define R828D_XTAL_FREQ 16000000
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#define R82XX_CHECK_ADDR 0x00
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#define R82XX_CHECK_VAL 0x69
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#define R82XX_IF_FREQ 3570000
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#define REG_SHADOW_START 5
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#define NUM_REGS 30
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#define NUM_IMR 5
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#define IMR_TRIAL 9
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#define VER_NUM 49
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enum r82xx_chip {
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CHIP_R820T,
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CHIP_R620D,
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CHIP_R828D,
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CHIP_R828,
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CHIP_R828S,
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CHIP_R820C,
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};
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enum r82xx_tuner_type {
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TUNER_RADIO = 1,
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TUNER_ANALOG_TV,
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TUNER_DIGITAL_TV
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};
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enum r82xx_xtal_cap_value {
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XTAL_LOW_CAP_30P = 0,
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XTAL_LOW_CAP_20P,
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XTAL_LOW_CAP_10P,
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XTAL_LOW_CAP_0P,
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XTAL_HIGH_CAP_0P
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};
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struct r82xx_config {
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uint8_t i2c_addr;
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uint32_t xtal;
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enum r82xx_chip rafael_chip;
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unsigned int max_i2c_msg_len;
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int use_predetect;
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};
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struct r82xx_priv {
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struct r82xx_config *cfg;
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uint8_t regs[NUM_REGS];
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uint8_t buf[NUM_REGS + 1];
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enum r82xx_xtal_cap_value xtal_cap_sel;
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uint16_t pll; /* kHz */
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uint32_t int_freq;
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uint8_t fil_cal_code;
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uint8_t input;
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int has_lock;
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int init_done;
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/* Store current mode */
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uint32_t delsys;
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enum r82xx_tuner_type type;
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uint32_t bw; /* in MHz */
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void *rtl_dev;
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};
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struct r82xx_freq_range {
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uint32_t freq;
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uint8_t open_d;
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uint8_t rf_mux_ploy;
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uint8_t tf_c;
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uint8_t xtal_cap20p;
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uint8_t xtal_cap10p;
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uint8_t xtal_cap0p;
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};
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enum r82xx_delivery_system {
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SYS_UNDEFINED,
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SYS_DVBT,
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SYS_DVBT2,
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SYS_ISDBT,
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};
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int r82xx_standby(struct r82xx_priv *priv);
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int r82xx_init(struct r82xx_priv *priv);
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int r82xx_set_freq(struct r82xx_priv *priv, uint32_t freq);
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int r82xx_set_gain(struct r82xx_priv *priv, int set_manual_gain, int gain);
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#endif
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