mirror of https://gitee.com/openkylin/linux.git
1697 lines
38 KiB
C
1697 lines
38 KiB
C
/*
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* DVB USB Linux driver for Afatech AF9015 DVB-T USB2.0 receiver
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*
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* Copyright (C) 2007 Antti Palosaari <crope@iki.fi>
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*
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* Thanks to Afatech who kindly provided information.
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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, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <linux/string.h>
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#include <linux/slab.h>
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#include <linux/firmware.h>
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#include "dvb_frontend.h"
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#include "af9013_priv.h"
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#include "af9013.h"
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int af9013_debug;
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struct af9013_state {
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struct i2c_adapter *i2c;
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struct dvb_frontend frontend;
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struct af9013_config config;
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u16 signal_strength;
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u32 ber;
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u32 ucblocks;
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u16 snr;
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u32 frequency;
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unsigned long next_statistics_check;
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};
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static u8 regmask[8] = { 0x01, 0x03, 0x07, 0x0f, 0x1f, 0x3f, 0x7f, 0xff };
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static int af9013_write_regs(struct af9013_state *state, u8 mbox, u16 reg,
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u8 *val, u8 len)
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{
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u8 buf[3+len];
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struct i2c_msg msg = {
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.addr = state->config.demod_address,
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.flags = 0,
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.len = sizeof(buf),
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.buf = buf };
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buf[0] = reg >> 8;
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buf[1] = reg & 0xff;
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buf[2] = mbox;
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memcpy(&buf[3], val, len);
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if (i2c_transfer(state->i2c, &msg, 1) != 1) {
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warn("I2C write failed reg:%04x len:%d", reg, len);
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return -EREMOTEIO;
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}
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return 0;
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}
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static int af9013_write_ofdm_regs(struct af9013_state *state, u16 reg, u8 *val,
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u8 len)
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{
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u8 mbox = (1 << 0)|(1 << 1)|((len - 1) << 2)|(0 << 6)|(0 << 7);
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return af9013_write_regs(state, mbox, reg, val, len);
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}
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static int af9013_write_ofsm_regs(struct af9013_state *state, u16 reg, u8 *val,
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u8 len)
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{
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u8 mbox = (1 << 0)|(1 << 1)|((len - 1) << 2)|(1 << 6)|(1 << 7);
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return af9013_write_regs(state, mbox, reg, val, len);
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}
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/* write single register */
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static int af9013_write_reg(struct af9013_state *state, u16 reg, u8 val)
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{
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return af9013_write_ofdm_regs(state, reg, &val, 1);
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}
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/* read single register */
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static int af9013_read_reg(struct af9013_state *state, u16 reg, u8 *val)
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{
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u8 obuf[3] = { reg >> 8, reg & 0xff, 0 };
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u8 ibuf[1];
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struct i2c_msg msg[2] = {
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{
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.addr = state->config.demod_address,
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.flags = 0,
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.len = sizeof(obuf),
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.buf = obuf
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}, {
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.addr = state->config.demod_address,
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.flags = I2C_M_RD,
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.len = sizeof(ibuf),
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.buf = ibuf
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}
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};
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if (i2c_transfer(state->i2c, msg, 2) != 2) {
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warn("I2C read failed reg:%04x", reg);
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return -EREMOTEIO;
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}
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*val = ibuf[0];
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return 0;
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}
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static int af9013_write_reg_bits(struct af9013_state *state, u16 reg, u8 pos,
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u8 len, u8 val)
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{
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int ret;
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u8 tmp, mask;
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ret = af9013_read_reg(state, reg, &tmp);
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if (ret)
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return ret;
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mask = regmask[len - 1] << pos;
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tmp = (tmp & ~mask) | ((val << pos) & mask);
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return af9013_write_reg(state, reg, tmp);
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}
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static int af9013_read_reg_bits(struct af9013_state *state, u16 reg, u8 pos,
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u8 len, u8 *val)
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{
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int ret;
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u8 tmp;
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ret = af9013_read_reg(state, reg, &tmp);
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if (ret)
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return ret;
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*val = (tmp >> pos) & regmask[len - 1];
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return 0;
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}
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static int af9013_set_gpio(struct af9013_state *state, u8 gpio, u8 gpioval)
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{
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int ret;
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u8 pos;
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u16 addr;
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deb_info("%s: gpio:%d gpioval:%02x\n", __func__, gpio, gpioval);
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/* GPIO0 & GPIO1 0xd735
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GPIO2 & GPIO3 0xd736 */
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switch (gpio) {
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case 0:
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case 1:
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addr = 0xd735;
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break;
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case 2:
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case 3:
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addr = 0xd736;
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break;
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default:
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err("invalid gpio:%d\n", gpio);
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ret = -EINVAL;
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goto error;
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};
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switch (gpio) {
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case 0:
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case 2:
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pos = 0;
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break;
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case 1:
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case 3:
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default:
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pos = 4;
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break;
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};
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ret = af9013_write_reg_bits(state, addr, pos, 4, gpioval);
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error:
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return ret;
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}
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static u32 af913_div(u32 a, u32 b, u32 x)
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{
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u32 r = 0, c = 0, i;
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deb_info("%s: a:%d b:%d x:%d\n", __func__, a, b, x);
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if (a > b) {
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c = a / b;
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a = a - c * b;
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}
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for (i = 0; i < x; i++) {
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if (a >= b) {
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r += 1;
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a -= b;
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}
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a <<= 1;
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r <<= 1;
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}
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r = (c << (u32)x) + r;
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deb_info("%s: a:%d b:%d x:%d r:%d r:%x\n", __func__, a, b, x, r, r);
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return r;
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}
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static int af9013_set_coeff(struct af9013_state *state, fe_bandwidth_t bw)
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{
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int ret = 0;
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u8 i = 0;
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u8 buf[24];
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u32 uninitialized_var(ns_coeff1_2048nu);
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u32 uninitialized_var(ns_coeff1_8191nu);
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u32 uninitialized_var(ns_coeff1_8192nu);
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u32 uninitialized_var(ns_coeff1_8193nu);
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u32 uninitialized_var(ns_coeff2_2k);
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u32 uninitialized_var(ns_coeff2_8k);
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deb_info("%s: adc_clock:%d bw:%d\n", __func__,
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state->config.adc_clock, bw);
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switch (state->config.adc_clock) {
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case 28800: /* 28.800 MHz */
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switch (bw) {
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case BANDWIDTH_6_MHZ:
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ns_coeff1_2048nu = 0x01e79e7a;
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ns_coeff1_8191nu = 0x0079eb6e;
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ns_coeff1_8192nu = 0x0079e79e;
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ns_coeff1_8193nu = 0x0079e3cf;
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ns_coeff2_2k = 0x00f3cf3d;
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ns_coeff2_8k = 0x003cf3cf;
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break;
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case BANDWIDTH_7_MHZ:
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ns_coeff1_2048nu = 0x0238e38e;
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ns_coeff1_8191nu = 0x008e3d55;
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ns_coeff1_8192nu = 0x008e38e4;
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ns_coeff1_8193nu = 0x008e3472;
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ns_coeff2_2k = 0x011c71c7;
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ns_coeff2_8k = 0x00471c72;
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break;
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case BANDWIDTH_8_MHZ:
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ns_coeff1_2048nu = 0x028a28a3;
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ns_coeff1_8191nu = 0x00a28f3d;
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ns_coeff1_8192nu = 0x00a28a29;
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ns_coeff1_8193nu = 0x00a28514;
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ns_coeff2_2k = 0x01451451;
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ns_coeff2_8k = 0x00514514;
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break;
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default:
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ret = -EINVAL;
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}
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break;
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case 20480: /* 20.480 MHz */
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switch (bw) {
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case BANDWIDTH_6_MHZ:
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ns_coeff1_2048nu = 0x02adb6dc;
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ns_coeff1_8191nu = 0x00ab7313;
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ns_coeff1_8192nu = 0x00ab6db7;
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ns_coeff1_8193nu = 0x00ab685c;
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ns_coeff2_2k = 0x0156db6e;
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ns_coeff2_8k = 0x0055b6dc;
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break;
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case BANDWIDTH_7_MHZ:
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ns_coeff1_2048nu = 0x03200001;
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ns_coeff1_8191nu = 0x00c80640;
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ns_coeff1_8192nu = 0x00c80000;
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ns_coeff1_8193nu = 0x00c7f9c0;
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ns_coeff2_2k = 0x01900000;
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ns_coeff2_8k = 0x00640000;
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break;
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case BANDWIDTH_8_MHZ:
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ns_coeff1_2048nu = 0x03924926;
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ns_coeff1_8191nu = 0x00e4996e;
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ns_coeff1_8192nu = 0x00e49249;
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ns_coeff1_8193nu = 0x00e48b25;
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ns_coeff2_2k = 0x01c92493;
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ns_coeff2_8k = 0x00724925;
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break;
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default:
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ret = -EINVAL;
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}
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break;
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case 28000: /* 28.000 MHz */
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switch (bw) {
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case BANDWIDTH_6_MHZ:
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ns_coeff1_2048nu = 0x01f58d10;
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ns_coeff1_8191nu = 0x007d672f;
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ns_coeff1_8192nu = 0x007d6344;
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ns_coeff1_8193nu = 0x007d5f59;
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ns_coeff2_2k = 0x00fac688;
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ns_coeff2_8k = 0x003eb1a2;
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break;
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case BANDWIDTH_7_MHZ:
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ns_coeff1_2048nu = 0x02492492;
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ns_coeff1_8191nu = 0x00924db7;
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ns_coeff1_8192nu = 0x00924925;
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ns_coeff1_8193nu = 0x00924492;
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ns_coeff2_2k = 0x01249249;
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ns_coeff2_8k = 0x00492492;
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break;
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case BANDWIDTH_8_MHZ:
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ns_coeff1_2048nu = 0x029cbc15;
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ns_coeff1_8191nu = 0x00a7343f;
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ns_coeff1_8192nu = 0x00a72f05;
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ns_coeff1_8193nu = 0x00a729cc;
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ns_coeff2_2k = 0x014e5e0a;
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ns_coeff2_8k = 0x00539783;
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break;
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default:
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ret = -EINVAL;
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}
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break;
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case 25000: /* 25.000 MHz */
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switch (bw) {
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case BANDWIDTH_6_MHZ:
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ns_coeff1_2048nu = 0x0231bcb5;
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ns_coeff1_8191nu = 0x008c7391;
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ns_coeff1_8192nu = 0x008c6f2d;
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ns_coeff1_8193nu = 0x008c6aca;
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ns_coeff2_2k = 0x0118de5b;
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ns_coeff2_8k = 0x00463797;
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break;
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case BANDWIDTH_7_MHZ:
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ns_coeff1_2048nu = 0x028f5c29;
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ns_coeff1_8191nu = 0x00a3dc29;
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ns_coeff1_8192nu = 0x00a3d70a;
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ns_coeff1_8193nu = 0x00a3d1ec;
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ns_coeff2_2k = 0x0147ae14;
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ns_coeff2_8k = 0x0051eb85;
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break;
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case BANDWIDTH_8_MHZ:
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ns_coeff1_2048nu = 0x02ecfb9d;
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ns_coeff1_8191nu = 0x00bb44c1;
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ns_coeff1_8192nu = 0x00bb3ee7;
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ns_coeff1_8193nu = 0x00bb390d;
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ns_coeff2_2k = 0x01767dce;
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ns_coeff2_8k = 0x005d9f74;
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break;
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default:
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ret = -EINVAL;
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}
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break;
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default:
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err("invalid xtal");
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return -EINVAL;
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}
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if (ret) {
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err("invalid bandwidth");
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return ret;
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}
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buf[i++] = (u8) ((ns_coeff1_2048nu & 0x03000000) >> 24);
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buf[i++] = (u8) ((ns_coeff1_2048nu & 0x00ff0000) >> 16);
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buf[i++] = (u8) ((ns_coeff1_2048nu & 0x0000ff00) >> 8);
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buf[i++] = (u8) ((ns_coeff1_2048nu & 0x000000ff));
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buf[i++] = (u8) ((ns_coeff2_2k & 0x01c00000) >> 22);
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buf[i++] = (u8) ((ns_coeff2_2k & 0x003fc000) >> 14);
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buf[i++] = (u8) ((ns_coeff2_2k & 0x00003fc0) >> 6);
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buf[i++] = (u8) ((ns_coeff2_2k & 0x0000003f));
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buf[i++] = (u8) ((ns_coeff1_8191nu & 0x03000000) >> 24);
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buf[i++] = (u8) ((ns_coeff1_8191nu & 0x00ffc000) >> 16);
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buf[i++] = (u8) ((ns_coeff1_8191nu & 0x0000ff00) >> 8);
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buf[i++] = (u8) ((ns_coeff1_8191nu & 0x000000ff));
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buf[i++] = (u8) ((ns_coeff1_8192nu & 0x03000000) >> 24);
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buf[i++] = (u8) ((ns_coeff1_8192nu & 0x00ffc000) >> 16);
|
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buf[i++] = (u8) ((ns_coeff1_8192nu & 0x0000ff00) >> 8);
|
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buf[i++] = (u8) ((ns_coeff1_8192nu & 0x000000ff));
|
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buf[i++] = (u8) ((ns_coeff1_8193nu & 0x03000000) >> 24);
|
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buf[i++] = (u8) ((ns_coeff1_8193nu & 0x00ffc000) >> 16);
|
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buf[i++] = (u8) ((ns_coeff1_8193nu & 0x0000ff00) >> 8);
|
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buf[i++] = (u8) ((ns_coeff1_8193nu & 0x000000ff));
|
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buf[i++] = (u8) ((ns_coeff2_8k & 0x01c00000) >> 22);
|
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buf[i++] = (u8) ((ns_coeff2_8k & 0x003fc000) >> 14);
|
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buf[i++] = (u8) ((ns_coeff2_8k & 0x00003fc0) >> 6);
|
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buf[i++] = (u8) ((ns_coeff2_8k & 0x0000003f));
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|
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deb_info("%s: coeff:", __func__);
|
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debug_dump(buf, sizeof(buf), deb_info);
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|
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/* program */
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for (i = 0; i < sizeof(buf); i++) {
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ret = af9013_write_reg(state, 0xae00 + i, buf[i]);
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if (ret)
|
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break;
|
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}
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|
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return ret;
|
|
}
|
|
|
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static int af9013_set_adc_ctrl(struct af9013_state *state)
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{
|
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int ret;
|
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u8 buf[3], tmp, i;
|
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u32 adc_cw;
|
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|
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deb_info("%s: adc_clock:%d\n", __func__, state->config.adc_clock);
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|
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/* adc frequency type */
|
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switch (state->config.adc_clock) {
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case 28800: /* 28.800 MHz */
|
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tmp = 0;
|
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break;
|
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case 20480: /* 20.480 MHz */
|
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tmp = 1;
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break;
|
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case 28000: /* 28.000 MHz */
|
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tmp = 2;
|
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break;
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case 25000: /* 25.000 MHz */
|
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tmp = 3;
|
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break;
|
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default:
|
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err("invalid xtal");
|
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return -EINVAL;
|
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}
|
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|
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adc_cw = af913_div(state->config.adc_clock*1000, 1000000ul, 19ul);
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|
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buf[0] = (u8) ((adc_cw & 0x000000ff));
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buf[1] = (u8) ((adc_cw & 0x0000ff00) >> 8);
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buf[2] = (u8) ((adc_cw & 0x00ff0000) >> 16);
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|
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deb_info("%s: adc_cw:", __func__);
|
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debug_dump(buf, sizeof(buf), deb_info);
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|
|
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/* program */
|
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for (i = 0; i < sizeof(buf); i++) {
|
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ret = af9013_write_reg(state, 0xd180 + i, buf[i]);
|
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if (ret)
|
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goto error;
|
|
}
|
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ret = af9013_write_reg_bits(state, 0x9bd2, 0, 4, tmp);
|
|
error:
|
|
return ret;
|
|
}
|
|
|
|
static int af9013_set_freq_ctrl(struct af9013_state *state, fe_bandwidth_t bw)
|
|
{
|
|
int ret;
|
|
u16 addr;
|
|
u8 buf[3], i, j;
|
|
u32 adc_freq, freq_cw;
|
|
s8 bfs_spec_inv;
|
|
int if_sample_freq;
|
|
|
|
for (j = 0; j < 3; j++) {
|
|
if (j == 0) {
|
|
addr = 0xd140; /* fcw normal */
|
|
bfs_spec_inv = state->config.rf_spec_inv ? -1 : 1;
|
|
} else if (j == 1) {
|
|
addr = 0x9be7; /* fcw dummy ram */
|
|
bfs_spec_inv = state->config.rf_spec_inv ? -1 : 1;
|
|
} else {
|
|
addr = 0x9bea; /* fcw inverted */
|
|
bfs_spec_inv = state->config.rf_spec_inv ? 1 : -1;
|
|
}
|
|
|
|
adc_freq = state->config.adc_clock * 1000;
|
|
if_sample_freq = state->config.tuner_if * 1000;
|
|
|
|
/* TDA18271 uses different sampling freq for every bw */
|
|
if (state->config.tuner == AF9013_TUNER_TDA18271) {
|
|
switch (bw) {
|
|
case BANDWIDTH_6_MHZ:
|
|
if_sample_freq = 3300000; /* 3.3 MHz */
|
|
break;
|
|
case BANDWIDTH_7_MHZ:
|
|
if_sample_freq = 3800000; /* 3.8 MHz */
|
|
break;
|
|
case BANDWIDTH_8_MHZ:
|
|
default:
|
|
if_sample_freq = 4300000; /* 4.3 MHz */
|
|
break;
|
|
}
|
|
}
|
|
|
|
while (if_sample_freq > (adc_freq / 2))
|
|
if_sample_freq = if_sample_freq - adc_freq;
|
|
|
|
if (if_sample_freq >= 0)
|
|
bfs_spec_inv = bfs_spec_inv * (-1);
|
|
else
|
|
if_sample_freq = if_sample_freq * (-1);
|
|
|
|
freq_cw = af913_div(if_sample_freq, adc_freq, 23ul);
|
|
|
|
if (bfs_spec_inv == -1)
|
|
freq_cw = 0x00800000 - freq_cw;
|
|
|
|
buf[0] = (u8) ((freq_cw & 0x000000ff));
|
|
buf[1] = (u8) ((freq_cw & 0x0000ff00) >> 8);
|
|
buf[2] = (u8) ((freq_cw & 0x007f0000) >> 16);
|
|
|
|
|
|
deb_info("%s: freq_cw:", __func__);
|
|
debug_dump(buf, sizeof(buf), deb_info);
|
|
|
|
/* program */
|
|
for (i = 0; i < sizeof(buf); i++) {
|
|
ret = af9013_write_reg(state, addr++, buf[i]);
|
|
if (ret)
|
|
goto error;
|
|
}
|
|
}
|
|
error:
|
|
return ret;
|
|
}
|
|
|
|
static int af9013_set_ofdm_params(struct af9013_state *state,
|
|
struct dvb_ofdm_parameters *params, u8 *auto_mode)
|
|
{
|
|
int ret;
|
|
u8 i, buf[3] = {0, 0, 0};
|
|
*auto_mode = 0; /* set if parameters are requested to auto set */
|
|
|
|
/* Try auto-detect transmission parameters in case of AUTO requested or
|
|
garbage parameters given by application for compatibility.
|
|
MPlayer seems to provide garbage parameters currently. */
|
|
|
|
switch (params->transmission_mode) {
|
|
case TRANSMISSION_MODE_AUTO:
|
|
*auto_mode = 1;
|
|
case TRANSMISSION_MODE_2K:
|
|
break;
|
|
case TRANSMISSION_MODE_8K:
|
|
buf[0] |= (1 << 0);
|
|
break;
|
|
default:
|
|
deb_info("%s: invalid transmission_mode\n", __func__);
|
|
*auto_mode = 1;
|
|
}
|
|
|
|
switch (params->guard_interval) {
|
|
case GUARD_INTERVAL_AUTO:
|
|
*auto_mode = 1;
|
|
case GUARD_INTERVAL_1_32:
|
|
break;
|
|
case GUARD_INTERVAL_1_16:
|
|
buf[0] |= (1 << 2);
|
|
break;
|
|
case GUARD_INTERVAL_1_8:
|
|
buf[0] |= (2 << 2);
|
|
break;
|
|
case GUARD_INTERVAL_1_4:
|
|
buf[0] |= (3 << 2);
|
|
break;
|
|
default:
|
|
deb_info("%s: invalid guard_interval\n", __func__);
|
|
*auto_mode = 1;
|
|
}
|
|
|
|
switch (params->hierarchy_information) {
|
|
case HIERARCHY_AUTO:
|
|
*auto_mode = 1;
|
|
case HIERARCHY_NONE:
|
|
break;
|
|
case HIERARCHY_1:
|
|
buf[0] |= (1 << 4);
|
|
break;
|
|
case HIERARCHY_2:
|
|
buf[0] |= (2 << 4);
|
|
break;
|
|
case HIERARCHY_4:
|
|
buf[0] |= (3 << 4);
|
|
break;
|
|
default:
|
|
deb_info("%s: invalid hierarchy_information\n", __func__);
|
|
*auto_mode = 1;
|
|
};
|
|
|
|
switch (params->constellation) {
|
|
case QAM_AUTO:
|
|
*auto_mode = 1;
|
|
case QPSK:
|
|
break;
|
|
case QAM_16:
|
|
buf[1] |= (1 << 6);
|
|
break;
|
|
case QAM_64:
|
|
buf[1] |= (2 << 6);
|
|
break;
|
|
default:
|
|
deb_info("%s: invalid constellation\n", __func__);
|
|
*auto_mode = 1;
|
|
}
|
|
|
|
/* Use HP. How and which case we can switch to LP? */
|
|
buf[1] |= (1 << 4);
|
|
|
|
switch (params->code_rate_HP) {
|
|
case FEC_AUTO:
|
|
*auto_mode = 1;
|
|
case FEC_1_2:
|
|
break;
|
|
case FEC_2_3:
|
|
buf[2] |= (1 << 0);
|
|
break;
|
|
case FEC_3_4:
|
|
buf[2] |= (2 << 0);
|
|
break;
|
|
case FEC_5_6:
|
|
buf[2] |= (3 << 0);
|
|
break;
|
|
case FEC_7_8:
|
|
buf[2] |= (4 << 0);
|
|
break;
|
|
default:
|
|
deb_info("%s: invalid code_rate_HP\n", __func__);
|
|
*auto_mode = 1;
|
|
}
|
|
|
|
switch (params->code_rate_LP) {
|
|
case FEC_AUTO:
|
|
/* if HIERARCHY_NONE and FEC_NONE then LP FEC is set to FEC_AUTO
|
|
by dvb_frontend.c for compatibility */
|
|
if (params->hierarchy_information != HIERARCHY_NONE)
|
|
*auto_mode = 1;
|
|
case FEC_1_2:
|
|
break;
|
|
case FEC_2_3:
|
|
buf[2] |= (1 << 3);
|
|
break;
|
|
case FEC_3_4:
|
|
buf[2] |= (2 << 3);
|
|
break;
|
|
case FEC_5_6:
|
|
buf[2] |= (3 << 3);
|
|
break;
|
|
case FEC_7_8:
|
|
buf[2] |= (4 << 3);
|
|
break;
|
|
case FEC_NONE:
|
|
if (params->hierarchy_information == HIERARCHY_AUTO)
|
|
break;
|
|
default:
|
|
deb_info("%s: invalid code_rate_LP\n", __func__);
|
|
*auto_mode = 1;
|
|
}
|
|
|
|
switch (params->bandwidth) {
|
|
case BANDWIDTH_6_MHZ:
|
|
break;
|
|
case BANDWIDTH_7_MHZ:
|
|
buf[1] |= (1 << 2);
|
|
break;
|
|
case BANDWIDTH_8_MHZ:
|
|
buf[1] |= (2 << 2);
|
|
break;
|
|
default:
|
|
deb_info("%s: invalid bandwidth\n", __func__);
|
|
buf[1] |= (2 << 2); /* cannot auto-detect BW, try 8 MHz */
|
|
}
|
|
|
|
/* program */
|
|
for (i = 0; i < sizeof(buf); i++) {
|
|
ret = af9013_write_reg(state, 0xd3c0 + i, buf[i]);
|
|
if (ret)
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int af9013_reset(struct af9013_state *state, u8 sleep)
|
|
{
|
|
int ret;
|
|
u8 tmp, i;
|
|
deb_info("%s\n", __func__);
|
|
|
|
/* enable OFDM reset */
|
|
ret = af9013_write_reg_bits(state, 0xd417, 4, 1, 1);
|
|
if (ret)
|
|
goto error;
|
|
|
|
/* start reset mechanism */
|
|
ret = af9013_write_reg(state, 0xaeff, 1);
|
|
if (ret)
|
|
goto error;
|
|
|
|
/* reset is done when bit 1 is set */
|
|
for (i = 0; i < 150; i++) {
|
|
ret = af9013_read_reg_bits(state, 0xd417, 1, 1, &tmp);
|
|
if (ret)
|
|
goto error;
|
|
if (tmp)
|
|
break; /* reset done */
|
|
msleep(10);
|
|
}
|
|
if (!tmp)
|
|
return -ETIMEDOUT;
|
|
|
|
/* don't clear reset when going to sleep */
|
|
if (!sleep) {
|
|
/* clear OFDM reset */
|
|
ret = af9013_write_reg_bits(state, 0xd417, 1, 1, 0);
|
|
if (ret)
|
|
goto error;
|
|
|
|
/* disable OFDM reset */
|
|
ret = af9013_write_reg_bits(state, 0xd417, 4, 1, 0);
|
|
}
|
|
error:
|
|
return ret;
|
|
}
|
|
|
|
static int af9013_power_ctrl(struct af9013_state *state, u8 onoff)
|
|
{
|
|
int ret;
|
|
deb_info("%s: onoff:%d\n", __func__, onoff);
|
|
|
|
if (onoff) {
|
|
/* power on */
|
|
ret = af9013_write_reg_bits(state, 0xd73a, 3, 1, 0);
|
|
if (ret)
|
|
goto error;
|
|
ret = af9013_write_reg_bits(state, 0xd417, 1, 1, 0);
|
|
if (ret)
|
|
goto error;
|
|
ret = af9013_write_reg_bits(state, 0xd417, 4, 1, 0);
|
|
} else {
|
|
/* power off */
|
|
ret = af9013_reset(state, 1);
|
|
if (ret)
|
|
goto error;
|
|
ret = af9013_write_reg_bits(state, 0xd73a, 3, 1, 1);
|
|
}
|
|
error:
|
|
return ret;
|
|
}
|
|
|
|
static int af9013_lock_led(struct af9013_state *state, u8 onoff)
|
|
{
|
|
deb_info("%s: onoff:%d\n", __func__, onoff);
|
|
|
|
return af9013_write_reg_bits(state, 0xd730, 0, 1, onoff);
|
|
}
|
|
|
|
static int af9013_set_frontend(struct dvb_frontend *fe,
|
|
struct dvb_frontend_parameters *params)
|
|
{
|
|
struct af9013_state *state = fe->demodulator_priv;
|
|
int ret;
|
|
u8 auto_mode; /* auto set TPS */
|
|
|
|
deb_info("%s: freq:%d bw:%d\n", __func__, params->frequency,
|
|
params->u.ofdm.bandwidth);
|
|
|
|
state->frequency = params->frequency;
|
|
|
|
/* program CFOE coefficients */
|
|
ret = af9013_set_coeff(state, params->u.ofdm.bandwidth);
|
|
if (ret)
|
|
goto error;
|
|
|
|
/* program frequency control */
|
|
ret = af9013_set_freq_ctrl(state, params->u.ofdm.bandwidth);
|
|
if (ret)
|
|
goto error;
|
|
|
|
/* clear TPS lock flag (inverted flag) */
|
|
ret = af9013_write_reg_bits(state, 0xd330, 3, 1, 1);
|
|
if (ret)
|
|
goto error;
|
|
|
|
/* clear MPEG2 lock flag */
|
|
ret = af9013_write_reg_bits(state, 0xd507, 6, 1, 0);
|
|
if (ret)
|
|
goto error;
|
|
|
|
/* empty channel function */
|
|
ret = af9013_write_reg_bits(state, 0x9bfe, 0, 1, 0);
|
|
if (ret)
|
|
goto error;
|
|
|
|
/* empty DVB-T channel function */
|
|
ret = af9013_write_reg_bits(state, 0x9bc2, 0, 1, 0);
|
|
if (ret)
|
|
goto error;
|
|
|
|
/* program tuner */
|
|
if (fe->ops.tuner_ops.set_params)
|
|
fe->ops.tuner_ops.set_params(fe, params);
|
|
|
|
/* program TPS and bandwidth, check if auto mode needed */
|
|
ret = af9013_set_ofdm_params(state, ¶ms->u.ofdm, &auto_mode);
|
|
if (ret)
|
|
goto error;
|
|
|
|
if (auto_mode) {
|
|
/* clear easy mode flag */
|
|
ret = af9013_write_reg(state, 0xaefd, 0);
|
|
deb_info("%s: auto TPS\n", __func__);
|
|
} else {
|
|
/* set easy mode flag */
|
|
ret = af9013_write_reg(state, 0xaefd, 1);
|
|
if (ret)
|
|
goto error;
|
|
ret = af9013_write_reg(state, 0xaefe, 0);
|
|
deb_info("%s: manual TPS\n", __func__);
|
|
}
|
|
if (ret)
|
|
goto error;
|
|
|
|
/* everything is set, lets try to receive channel - OFSM GO! */
|
|
ret = af9013_write_reg(state, 0xffff, 0);
|
|
if (ret)
|
|
goto error;
|
|
|
|
error:
|
|
return ret;
|
|
}
|
|
|
|
static int af9013_get_frontend(struct dvb_frontend *fe,
|
|
struct dvb_frontend_parameters *p)
|
|
{
|
|
struct af9013_state *state = fe->demodulator_priv;
|
|
int ret;
|
|
u8 i, buf[3];
|
|
deb_info("%s\n", __func__);
|
|
|
|
/* read TPS registers */
|
|
for (i = 0; i < 3; i++) {
|
|
ret = af9013_read_reg(state, 0xd3c0 + i, &buf[i]);
|
|
if (ret)
|
|
goto error;
|
|
}
|
|
|
|
switch ((buf[1] >> 6) & 3) {
|
|
case 0:
|
|
p->u.ofdm.constellation = QPSK;
|
|
break;
|
|
case 1:
|
|
p->u.ofdm.constellation = QAM_16;
|
|
break;
|
|
case 2:
|
|
p->u.ofdm.constellation = QAM_64;
|
|
break;
|
|
}
|
|
|
|
switch ((buf[0] >> 0) & 3) {
|
|
case 0:
|
|
p->u.ofdm.transmission_mode = TRANSMISSION_MODE_2K;
|
|
break;
|
|
case 1:
|
|
p->u.ofdm.transmission_mode = TRANSMISSION_MODE_8K;
|
|
}
|
|
|
|
switch ((buf[0] >> 2) & 3) {
|
|
case 0:
|
|
p->u.ofdm.guard_interval = GUARD_INTERVAL_1_32;
|
|
break;
|
|
case 1:
|
|
p->u.ofdm.guard_interval = GUARD_INTERVAL_1_16;
|
|
break;
|
|
case 2:
|
|
p->u.ofdm.guard_interval = GUARD_INTERVAL_1_8;
|
|
break;
|
|
case 3:
|
|
p->u.ofdm.guard_interval = GUARD_INTERVAL_1_4;
|
|
break;
|
|
}
|
|
|
|
switch ((buf[0] >> 4) & 7) {
|
|
case 0:
|
|
p->u.ofdm.hierarchy_information = HIERARCHY_NONE;
|
|
break;
|
|
case 1:
|
|
p->u.ofdm.hierarchy_information = HIERARCHY_1;
|
|
break;
|
|
case 2:
|
|
p->u.ofdm.hierarchy_information = HIERARCHY_2;
|
|
break;
|
|
case 3:
|
|
p->u.ofdm.hierarchy_information = HIERARCHY_4;
|
|
break;
|
|
}
|
|
|
|
switch ((buf[2] >> 0) & 7) {
|
|
case 0:
|
|
p->u.ofdm.code_rate_HP = FEC_1_2;
|
|
break;
|
|
case 1:
|
|
p->u.ofdm.code_rate_HP = FEC_2_3;
|
|
break;
|
|
case 2:
|
|
p->u.ofdm.code_rate_HP = FEC_3_4;
|
|
break;
|
|
case 3:
|
|
p->u.ofdm.code_rate_HP = FEC_5_6;
|
|
break;
|
|
case 4:
|
|
p->u.ofdm.code_rate_HP = FEC_7_8;
|
|
break;
|
|
}
|
|
|
|
switch ((buf[2] >> 3) & 7) {
|
|
case 0:
|
|
p->u.ofdm.code_rate_LP = FEC_1_2;
|
|
break;
|
|
case 1:
|
|
p->u.ofdm.code_rate_LP = FEC_2_3;
|
|
break;
|
|
case 2:
|
|
p->u.ofdm.code_rate_LP = FEC_3_4;
|
|
break;
|
|
case 3:
|
|
p->u.ofdm.code_rate_LP = FEC_5_6;
|
|
break;
|
|
case 4:
|
|
p->u.ofdm.code_rate_LP = FEC_7_8;
|
|
break;
|
|
}
|
|
|
|
switch ((buf[1] >> 2) & 3) {
|
|
case 0:
|
|
p->u.ofdm.bandwidth = BANDWIDTH_6_MHZ;
|
|
break;
|
|
case 1:
|
|
p->u.ofdm.bandwidth = BANDWIDTH_7_MHZ;
|
|
break;
|
|
case 2:
|
|
p->u.ofdm.bandwidth = BANDWIDTH_8_MHZ;
|
|
break;
|
|
}
|
|
|
|
p->inversion = INVERSION_AUTO;
|
|
p->frequency = state->frequency;
|
|
|
|
error:
|
|
return ret;
|
|
}
|
|
|
|
static int af9013_update_ber_unc(struct dvb_frontend *fe)
|
|
{
|
|
struct af9013_state *state = fe->demodulator_priv;
|
|
int ret;
|
|
u8 buf[3], i;
|
|
u32 error_bit_count = 0;
|
|
u32 total_bit_count = 0;
|
|
u32 abort_packet_count = 0;
|
|
|
|
state->ber = 0;
|
|
|
|
/* check if error bit count is ready */
|
|
ret = af9013_read_reg_bits(state, 0xd391, 4, 1, &buf[0]);
|
|
if (ret)
|
|
goto error;
|
|
if (!buf[0])
|
|
goto exit;
|
|
|
|
/* get RSD packet abort count */
|
|
for (i = 0; i < 2; i++) {
|
|
ret = af9013_read_reg(state, 0xd38a + i, &buf[i]);
|
|
if (ret)
|
|
goto error;
|
|
}
|
|
abort_packet_count = (buf[1] << 8) + buf[0];
|
|
|
|
/* get error bit count */
|
|
for (i = 0; i < 3; i++) {
|
|
ret = af9013_read_reg(state, 0xd387 + i, &buf[i]);
|
|
if (ret)
|
|
goto error;
|
|
}
|
|
error_bit_count = (buf[2] << 16) + (buf[1] << 8) + buf[0];
|
|
error_bit_count = error_bit_count - abort_packet_count * 8 * 8;
|
|
|
|
/* get used RSD counting period (10000 RSD packets used) */
|
|
for (i = 0; i < 2; i++) {
|
|
ret = af9013_read_reg(state, 0xd385 + i, &buf[i]);
|
|
if (ret)
|
|
goto error;
|
|
}
|
|
total_bit_count = (buf[1] << 8) + buf[0];
|
|
total_bit_count = total_bit_count - abort_packet_count;
|
|
total_bit_count = total_bit_count * 204 * 8;
|
|
|
|
if (total_bit_count)
|
|
state->ber = error_bit_count * 1000000000 / total_bit_count;
|
|
|
|
state->ucblocks += abort_packet_count;
|
|
|
|
deb_info("%s: err bits:%d total bits:%d abort count:%d\n", __func__,
|
|
error_bit_count, total_bit_count, abort_packet_count);
|
|
|
|
/* set BER counting range */
|
|
ret = af9013_write_reg(state, 0xd385, 10000 & 0xff);
|
|
if (ret)
|
|
goto error;
|
|
ret = af9013_write_reg(state, 0xd386, 10000 >> 8);
|
|
if (ret)
|
|
goto error;
|
|
/* reset and start BER counter */
|
|
ret = af9013_write_reg_bits(state, 0xd391, 4, 1, 1);
|
|
if (ret)
|
|
goto error;
|
|
|
|
exit:
|
|
error:
|
|
return ret;
|
|
}
|
|
|
|
static int af9013_update_snr(struct dvb_frontend *fe)
|
|
{
|
|
struct af9013_state *state = fe->demodulator_priv;
|
|
int ret;
|
|
u8 buf[3], i, len;
|
|
u32 quant = 0;
|
|
struct snr_table *uninitialized_var(snr_table);
|
|
|
|
/* check if quantizer ready (for snr) */
|
|
ret = af9013_read_reg_bits(state, 0xd2e1, 3, 1, &buf[0]);
|
|
if (ret)
|
|
goto error;
|
|
if (buf[0]) {
|
|
/* quantizer ready - read it */
|
|
for (i = 0; i < 3; i++) {
|
|
ret = af9013_read_reg(state, 0xd2e3 + i, &buf[i]);
|
|
if (ret)
|
|
goto error;
|
|
}
|
|
quant = (buf[2] << 16) + (buf[1] << 8) + buf[0];
|
|
|
|
/* read current constellation */
|
|
ret = af9013_read_reg(state, 0xd3c1, &buf[0]);
|
|
if (ret)
|
|
goto error;
|
|
|
|
switch ((buf[0] >> 6) & 3) {
|
|
case 0:
|
|
len = ARRAY_SIZE(qpsk_snr_table);
|
|
snr_table = qpsk_snr_table;
|
|
break;
|
|
case 1:
|
|
len = ARRAY_SIZE(qam16_snr_table);
|
|
snr_table = qam16_snr_table;
|
|
break;
|
|
case 2:
|
|
len = ARRAY_SIZE(qam64_snr_table);
|
|
snr_table = qam64_snr_table;
|
|
break;
|
|
default:
|
|
len = 0;
|
|
break;
|
|
}
|
|
|
|
if (len) {
|
|
for (i = 0; i < len; i++) {
|
|
if (quant < snr_table[i].val) {
|
|
state->snr = snr_table[i].snr * 10;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* set quantizer super frame count */
|
|
ret = af9013_write_reg(state, 0xd2e2, 1);
|
|
if (ret)
|
|
goto error;
|
|
|
|
/* check quantizer availability */
|
|
for (i = 0; i < 10; i++) {
|
|
msleep(10);
|
|
ret = af9013_read_reg_bits(state, 0xd2e6, 0, 1,
|
|
&buf[0]);
|
|
if (ret)
|
|
goto error;
|
|
if (!buf[0])
|
|
break;
|
|
}
|
|
|
|
/* reset quantizer */
|
|
ret = af9013_write_reg_bits(state, 0xd2e1, 3, 1, 1);
|
|
if (ret)
|
|
goto error;
|
|
}
|
|
|
|
error:
|
|
return ret;
|
|
}
|
|
|
|
static int af9013_update_signal_strength(struct dvb_frontend *fe)
|
|
{
|
|
struct af9013_state *state = fe->demodulator_priv;
|
|
int ret;
|
|
u8 tmp0;
|
|
u8 rf_gain, rf_50, rf_80, if_gain, if_50, if_80;
|
|
int signal_strength;
|
|
|
|
deb_info("%s\n", __func__);
|
|
|
|
state->signal_strength = 0;
|
|
|
|
ret = af9013_read_reg_bits(state, 0x9bee, 0, 1, &tmp0);
|
|
if (ret)
|
|
goto error;
|
|
if (tmp0) {
|
|
ret = af9013_read_reg(state, 0x9bbd, &rf_50);
|
|
if (ret)
|
|
goto error;
|
|
ret = af9013_read_reg(state, 0x9bd0, &rf_80);
|
|
if (ret)
|
|
goto error;
|
|
ret = af9013_read_reg(state, 0x9be2, &if_50);
|
|
if (ret)
|
|
goto error;
|
|
ret = af9013_read_reg(state, 0x9be4, &if_80);
|
|
if (ret)
|
|
goto error;
|
|
ret = af9013_read_reg(state, 0xd07c, &rf_gain);
|
|
if (ret)
|
|
goto error;
|
|
ret = af9013_read_reg(state, 0xd07d, &if_gain);
|
|
if (ret)
|
|
goto error;
|
|
signal_strength = (0xffff / (9 * (rf_50 + if_50) - \
|
|
11 * (rf_80 + if_80))) * (10 * (rf_gain + if_gain) - \
|
|
11 * (rf_80 + if_80));
|
|
if (signal_strength < 0)
|
|
signal_strength = 0;
|
|
else if (signal_strength > 0xffff)
|
|
signal_strength = 0xffff;
|
|
|
|
state->signal_strength = signal_strength;
|
|
}
|
|
|
|
error:
|
|
return ret;
|
|
}
|
|
|
|
static int af9013_update_statistics(struct dvb_frontend *fe)
|
|
{
|
|
struct af9013_state *state = fe->demodulator_priv;
|
|
int ret;
|
|
|
|
if (time_before(jiffies, state->next_statistics_check))
|
|
return 0;
|
|
|
|
/* set minimum statistic update interval */
|
|
state->next_statistics_check = jiffies + msecs_to_jiffies(1200);
|
|
|
|
ret = af9013_update_signal_strength(fe);
|
|
if (ret)
|
|
goto error;
|
|
ret = af9013_update_snr(fe);
|
|
if (ret)
|
|
goto error;
|
|
ret = af9013_update_ber_unc(fe);
|
|
if (ret)
|
|
goto error;
|
|
|
|
error:
|
|
return ret;
|
|
}
|
|
|
|
static int af9013_get_tune_settings(struct dvb_frontend *fe,
|
|
struct dvb_frontend_tune_settings *fesettings)
|
|
{
|
|
fesettings->min_delay_ms = 800;
|
|
fesettings->step_size = 0;
|
|
fesettings->max_drift = 0;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int af9013_read_status(struct dvb_frontend *fe, fe_status_t *status)
|
|
{
|
|
struct af9013_state *state = fe->demodulator_priv;
|
|
int ret = 0;
|
|
u8 tmp;
|
|
*status = 0;
|
|
|
|
/* TPS lock */
|
|
ret = af9013_read_reg_bits(state, 0xd330, 3, 1, &tmp);
|
|
if (ret)
|
|
goto error;
|
|
if (tmp)
|
|
*status |= FE_HAS_VITERBI | FE_HAS_CARRIER | FE_HAS_SIGNAL;
|
|
|
|
/* MPEG2 lock */
|
|
ret = af9013_read_reg_bits(state, 0xd507, 6, 1, &tmp);
|
|
if (ret)
|
|
goto error;
|
|
if (tmp)
|
|
*status |= FE_HAS_SYNC | FE_HAS_LOCK;
|
|
|
|
if (!(*status & FE_HAS_SIGNAL)) {
|
|
/* AGC lock */
|
|
ret = af9013_read_reg_bits(state, 0xd1a0, 6, 1, &tmp);
|
|
if (ret)
|
|
goto error;
|
|
if (tmp)
|
|
*status |= FE_HAS_SIGNAL;
|
|
}
|
|
|
|
if (!(*status & FE_HAS_CARRIER)) {
|
|
/* CFO lock */
|
|
ret = af9013_read_reg_bits(state, 0xd333, 7, 1, &tmp);
|
|
if (ret)
|
|
goto error;
|
|
if (tmp)
|
|
*status |= FE_HAS_CARRIER;
|
|
}
|
|
|
|
if (!(*status & FE_HAS_CARRIER)) {
|
|
/* SFOE lock */
|
|
ret = af9013_read_reg_bits(state, 0xd334, 6, 1, &tmp);
|
|
if (ret)
|
|
goto error;
|
|
if (tmp)
|
|
*status |= FE_HAS_CARRIER;
|
|
}
|
|
|
|
ret = af9013_update_statistics(fe);
|
|
|
|
error:
|
|
return ret;
|
|
}
|
|
|
|
|
|
static int af9013_read_ber(struct dvb_frontend *fe, u32 *ber)
|
|
{
|
|
struct af9013_state *state = fe->demodulator_priv;
|
|
int ret;
|
|
ret = af9013_update_statistics(fe);
|
|
*ber = state->ber;
|
|
return ret;
|
|
}
|
|
|
|
static int af9013_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
|
|
{
|
|
struct af9013_state *state = fe->demodulator_priv;
|
|
int ret;
|
|
ret = af9013_update_statistics(fe);
|
|
*strength = state->signal_strength;
|
|
return ret;
|
|
}
|
|
|
|
static int af9013_read_snr(struct dvb_frontend *fe, u16 *snr)
|
|
{
|
|
struct af9013_state *state = fe->demodulator_priv;
|
|
int ret;
|
|
ret = af9013_update_statistics(fe);
|
|
*snr = state->snr;
|
|
return ret;
|
|
}
|
|
|
|
static int af9013_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
|
|
{
|
|
struct af9013_state *state = fe->demodulator_priv;
|
|
int ret;
|
|
ret = af9013_update_statistics(fe);
|
|
*ucblocks = state->ucblocks;
|
|
return ret;
|
|
}
|
|
|
|
static int af9013_sleep(struct dvb_frontend *fe)
|
|
{
|
|
struct af9013_state *state = fe->demodulator_priv;
|
|
int ret;
|
|
deb_info("%s\n", __func__);
|
|
|
|
ret = af9013_lock_led(state, 0);
|
|
if (ret)
|
|
goto error;
|
|
|
|
ret = af9013_power_ctrl(state, 0);
|
|
error:
|
|
return ret;
|
|
}
|
|
|
|
static int af9013_init(struct dvb_frontend *fe)
|
|
{
|
|
struct af9013_state *state = fe->demodulator_priv;
|
|
int ret, i, len;
|
|
u8 tmp0, tmp1;
|
|
struct regdesc *init;
|
|
deb_info("%s\n", __func__);
|
|
|
|
/* reset OFDM */
|
|
ret = af9013_reset(state, 0);
|
|
if (ret)
|
|
goto error;
|
|
|
|
/* power on */
|
|
ret = af9013_power_ctrl(state, 1);
|
|
if (ret)
|
|
goto error;
|
|
|
|
/* enable ADC */
|
|
ret = af9013_write_reg(state, 0xd73a, 0xa4);
|
|
if (ret)
|
|
goto error;
|
|
|
|
/* write API version to firmware */
|
|
for (i = 0; i < sizeof(state->config.api_version); i++) {
|
|
ret = af9013_write_reg(state, 0x9bf2 + i,
|
|
state->config.api_version[i]);
|
|
if (ret)
|
|
goto error;
|
|
}
|
|
|
|
/* program ADC control */
|
|
ret = af9013_set_adc_ctrl(state);
|
|
if (ret)
|
|
goto error;
|
|
|
|
/* set I2C master clock */
|
|
ret = af9013_write_reg(state, 0xd416, 0x14);
|
|
if (ret)
|
|
goto error;
|
|
|
|
/* set 16 embx */
|
|
ret = af9013_write_reg_bits(state, 0xd700, 1, 1, 1);
|
|
if (ret)
|
|
goto error;
|
|
|
|
/* set no trigger */
|
|
ret = af9013_write_reg_bits(state, 0xd700, 2, 1, 0);
|
|
if (ret)
|
|
goto error;
|
|
|
|
/* set read-update bit for constellation */
|
|
ret = af9013_write_reg_bits(state, 0xd371, 1, 1, 1);
|
|
if (ret)
|
|
goto error;
|
|
|
|
/* enable FEC monitor */
|
|
ret = af9013_write_reg_bits(state, 0xd392, 1, 1, 1);
|
|
if (ret)
|
|
goto error;
|
|
|
|
/* load OFSM settings */
|
|
deb_info("%s: load ofsm settings\n", __func__);
|
|
len = ARRAY_SIZE(ofsm_init);
|
|
init = ofsm_init;
|
|
for (i = 0; i < len; i++) {
|
|
ret = af9013_write_reg_bits(state, init[i].addr, init[i].pos,
|
|
init[i].len, init[i].val);
|
|
if (ret)
|
|
goto error;
|
|
}
|
|
|
|
/* load tuner specific settings */
|
|
deb_info("%s: load tuner specific settings\n", __func__);
|
|
switch (state->config.tuner) {
|
|
case AF9013_TUNER_MXL5003D:
|
|
len = ARRAY_SIZE(tuner_init_mxl5003d);
|
|
init = tuner_init_mxl5003d;
|
|
break;
|
|
case AF9013_TUNER_MXL5005D:
|
|
case AF9013_TUNER_MXL5005R:
|
|
len = ARRAY_SIZE(tuner_init_mxl5005);
|
|
init = tuner_init_mxl5005;
|
|
break;
|
|
case AF9013_TUNER_ENV77H11D5:
|
|
len = ARRAY_SIZE(tuner_init_env77h11d5);
|
|
init = tuner_init_env77h11d5;
|
|
break;
|
|
case AF9013_TUNER_MT2060:
|
|
len = ARRAY_SIZE(tuner_init_mt2060);
|
|
init = tuner_init_mt2060;
|
|
break;
|
|
case AF9013_TUNER_MC44S803:
|
|
len = ARRAY_SIZE(tuner_init_mc44s803);
|
|
init = tuner_init_mc44s803;
|
|
break;
|
|
case AF9013_TUNER_QT1010:
|
|
case AF9013_TUNER_QT1010A:
|
|
len = ARRAY_SIZE(tuner_init_qt1010);
|
|
init = tuner_init_qt1010;
|
|
break;
|
|
case AF9013_TUNER_MT2060_2:
|
|
len = ARRAY_SIZE(tuner_init_mt2060_2);
|
|
init = tuner_init_mt2060_2;
|
|
break;
|
|
case AF9013_TUNER_TDA18271:
|
|
len = ARRAY_SIZE(tuner_init_tda18271);
|
|
init = tuner_init_tda18271;
|
|
break;
|
|
case AF9013_TUNER_UNKNOWN:
|
|
default:
|
|
len = ARRAY_SIZE(tuner_init_unknown);
|
|
init = tuner_init_unknown;
|
|
break;
|
|
}
|
|
|
|
for (i = 0; i < len; i++) {
|
|
ret = af9013_write_reg_bits(state, init[i].addr, init[i].pos,
|
|
init[i].len, init[i].val);
|
|
if (ret)
|
|
goto error;
|
|
}
|
|
|
|
/* set TS mode */
|
|
deb_info("%s: setting ts mode\n", __func__);
|
|
tmp0 = 0; /* parallel mode */
|
|
tmp1 = 0; /* serial mode */
|
|
switch (state->config.output_mode) {
|
|
case AF9013_OUTPUT_MODE_PARALLEL:
|
|
tmp0 = 1;
|
|
break;
|
|
case AF9013_OUTPUT_MODE_SERIAL:
|
|
tmp1 = 1;
|
|
break;
|
|
case AF9013_OUTPUT_MODE_USB:
|
|
/* usb mode for AF9015 */
|
|
default:
|
|
break;
|
|
}
|
|
ret = af9013_write_reg_bits(state, 0xd500, 1, 1, tmp0); /* parallel */
|
|
if (ret)
|
|
goto error;
|
|
ret = af9013_write_reg_bits(state, 0xd500, 2, 1, tmp1); /* serial */
|
|
if (ret)
|
|
goto error;
|
|
|
|
/* enable lock led */
|
|
ret = af9013_lock_led(state, 1);
|
|
if (ret)
|
|
goto error;
|
|
|
|
error:
|
|
return ret;
|
|
}
|
|
|
|
static struct dvb_frontend_ops af9013_ops;
|
|
|
|
static int af9013_download_firmware(struct af9013_state *state)
|
|
{
|
|
int i, len, packets, remainder, ret;
|
|
const struct firmware *fw;
|
|
u16 addr = 0x5100; /* firmware start address */
|
|
u16 checksum = 0;
|
|
u8 val;
|
|
u8 fw_params[4];
|
|
u8 *data;
|
|
u8 *fw_file = AF9013_DEFAULT_FIRMWARE;
|
|
|
|
msleep(100);
|
|
/* check whether firmware is already running */
|
|
ret = af9013_read_reg(state, 0x98be, &val);
|
|
if (ret)
|
|
goto error;
|
|
else
|
|
deb_info("%s: firmware status:%02x\n", __func__, val);
|
|
|
|
if (val == 0x0c) /* fw is running, no need for download */
|
|
goto exit;
|
|
|
|
info("found a '%s' in cold state, will try to load a firmware",
|
|
af9013_ops.info.name);
|
|
|
|
/* request the firmware, this will block and timeout */
|
|
ret = request_firmware(&fw, fw_file, state->i2c->dev.parent);
|
|
if (ret) {
|
|
err("did not find the firmware file. (%s) "
|
|
"Please see linux/Documentation/dvb/ for more details" \
|
|
" on firmware-problems. (%d)",
|
|
fw_file, ret);
|
|
goto error;
|
|
}
|
|
|
|
info("downloading firmware from file '%s'", fw_file);
|
|
|
|
/* calc checksum */
|
|
for (i = 0; i < fw->size; i++)
|
|
checksum += fw->data[i];
|
|
|
|
fw_params[0] = checksum >> 8;
|
|
fw_params[1] = checksum & 0xff;
|
|
fw_params[2] = fw->size >> 8;
|
|
fw_params[3] = fw->size & 0xff;
|
|
|
|
/* write fw checksum & size */
|
|
ret = af9013_write_ofsm_regs(state, 0x50fc,
|
|
fw_params, sizeof(fw_params));
|
|
if (ret)
|
|
goto error_release;
|
|
|
|
#define FW_PACKET_MAX_DATA 16
|
|
|
|
packets = fw->size / FW_PACKET_MAX_DATA;
|
|
remainder = fw->size % FW_PACKET_MAX_DATA;
|
|
len = FW_PACKET_MAX_DATA;
|
|
for (i = 0; i <= packets; i++) {
|
|
if (i == packets) /* set size of the last packet */
|
|
len = remainder;
|
|
|
|
data = (u8 *)(fw->data + i * FW_PACKET_MAX_DATA);
|
|
ret = af9013_write_ofsm_regs(state, addr, data, len);
|
|
addr += FW_PACKET_MAX_DATA;
|
|
|
|
if (ret) {
|
|
err("firmware download failed at %d with %d", i, ret);
|
|
goto error_release;
|
|
}
|
|
}
|
|
|
|
/* request boot firmware */
|
|
ret = af9013_write_reg(state, 0xe205, 1);
|
|
if (ret)
|
|
goto error_release;
|
|
|
|
for (i = 0; i < 15; i++) {
|
|
msleep(100);
|
|
|
|
/* check firmware status */
|
|
ret = af9013_read_reg(state, 0x98be, &val);
|
|
if (ret)
|
|
goto error_release;
|
|
|
|
deb_info("%s: firmware status:%02x\n", __func__, val);
|
|
|
|
if (val == 0x0c || val == 0x04) /* success or fail */
|
|
break;
|
|
}
|
|
|
|
if (val == 0x04) {
|
|
err("firmware did not run");
|
|
ret = -1;
|
|
} else if (val != 0x0c) {
|
|
err("firmware boot timeout");
|
|
ret = -1;
|
|
}
|
|
|
|
error_release:
|
|
release_firmware(fw);
|
|
error:
|
|
exit:
|
|
if (!ret)
|
|
info("found a '%s' in warm state.", af9013_ops.info.name);
|
|
return ret;
|
|
}
|
|
|
|
static int af9013_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)
|
|
{
|
|
int ret;
|
|
struct af9013_state *state = fe->demodulator_priv;
|
|
deb_info("%s: enable:%d\n", __func__, enable);
|
|
|
|
if (state->config.output_mode == AF9013_OUTPUT_MODE_USB)
|
|
ret = af9013_write_reg_bits(state, 0xd417, 3, 1, enable);
|
|
else
|
|
ret = af9013_write_reg_bits(state, 0xd607, 2, 1, enable);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void af9013_release(struct dvb_frontend *fe)
|
|
{
|
|
struct af9013_state *state = fe->demodulator_priv;
|
|
kfree(state);
|
|
}
|
|
|
|
static struct dvb_frontend_ops af9013_ops;
|
|
|
|
struct dvb_frontend *af9013_attach(const struct af9013_config *config,
|
|
struct i2c_adapter *i2c)
|
|
{
|
|
int ret;
|
|
struct af9013_state *state = NULL;
|
|
u8 buf[3], i;
|
|
|
|
/* allocate memory for the internal state */
|
|
state = kzalloc(sizeof(struct af9013_state), GFP_KERNEL);
|
|
if (state == NULL)
|
|
goto error;
|
|
|
|
/* setup the state */
|
|
state->i2c = i2c;
|
|
memcpy(&state->config, config, sizeof(struct af9013_config));
|
|
|
|
/* chip version */
|
|
ret = af9013_read_reg_bits(state, 0xd733, 4, 4, &buf[2]);
|
|
if (ret)
|
|
goto error;
|
|
|
|
/* ROM version */
|
|
for (i = 0; i < 2; i++) {
|
|
ret = af9013_read_reg(state, 0x116b + i, &buf[i]);
|
|
if (ret)
|
|
goto error;
|
|
}
|
|
deb_info("%s: chip version:%d ROM version:%d.%d\n", __func__,
|
|
buf[2], buf[0], buf[1]);
|
|
|
|
/* download firmware */
|
|
if (state->config.output_mode != AF9013_OUTPUT_MODE_USB) {
|
|
ret = af9013_download_firmware(state);
|
|
if (ret)
|
|
goto error;
|
|
}
|
|
|
|
/* firmware version */
|
|
for (i = 0; i < 3; i++) {
|
|
ret = af9013_read_reg(state, 0x5103 + i, &buf[i]);
|
|
if (ret)
|
|
goto error;
|
|
}
|
|
info("firmware version:%d.%d.%d", buf[0], buf[1], buf[2]);
|
|
|
|
/* settings for mp2if */
|
|
if (state->config.output_mode == AF9013_OUTPUT_MODE_USB) {
|
|
/* AF9015 split PSB to 1.5k + 0.5k */
|
|
ret = af9013_write_reg_bits(state, 0xd50b, 2, 1, 1);
|
|
} else {
|
|
/* AF9013 change the output bit to data7 */
|
|
ret = af9013_write_reg_bits(state, 0xd500, 3, 1, 1);
|
|
if (ret)
|
|
goto error;
|
|
/* AF9013 set mpeg to full speed */
|
|
ret = af9013_write_reg_bits(state, 0xd502, 4, 1, 1);
|
|
}
|
|
if (ret)
|
|
goto error;
|
|
ret = af9013_write_reg_bits(state, 0xd520, 4, 1, 1);
|
|
if (ret)
|
|
goto error;
|
|
|
|
/* set GPIOs */
|
|
for (i = 0; i < sizeof(state->config.gpio); i++) {
|
|
ret = af9013_set_gpio(state, i, state->config.gpio[i]);
|
|
if (ret)
|
|
goto error;
|
|
}
|
|
|
|
/* create dvb_frontend */
|
|
memcpy(&state->frontend.ops, &af9013_ops,
|
|
sizeof(struct dvb_frontend_ops));
|
|
state->frontend.demodulator_priv = state;
|
|
|
|
return &state->frontend;
|
|
error:
|
|
kfree(state);
|
|
return NULL;
|
|
}
|
|
EXPORT_SYMBOL(af9013_attach);
|
|
|
|
static struct dvb_frontend_ops af9013_ops = {
|
|
.info = {
|
|
.name = "Afatech AF9013 DVB-T",
|
|
.type = FE_OFDM,
|
|
.frequency_min = 174000000,
|
|
.frequency_max = 862000000,
|
|
.frequency_stepsize = 250000,
|
|
.frequency_tolerance = 0,
|
|
.caps =
|
|
FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
|
|
FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
|
|
FE_CAN_QPSK | FE_CAN_QAM_16 |
|
|
FE_CAN_QAM_64 | FE_CAN_QAM_AUTO |
|
|
FE_CAN_TRANSMISSION_MODE_AUTO |
|
|
FE_CAN_GUARD_INTERVAL_AUTO |
|
|
FE_CAN_HIERARCHY_AUTO |
|
|
FE_CAN_RECOVER |
|
|
FE_CAN_MUTE_TS
|
|
},
|
|
|
|
.release = af9013_release,
|
|
.init = af9013_init,
|
|
.sleep = af9013_sleep,
|
|
.i2c_gate_ctrl = af9013_i2c_gate_ctrl,
|
|
|
|
.set_frontend = af9013_set_frontend,
|
|
.get_frontend = af9013_get_frontend,
|
|
|
|
.get_tune_settings = af9013_get_tune_settings,
|
|
|
|
.read_status = af9013_read_status,
|
|
.read_ber = af9013_read_ber,
|
|
.read_signal_strength = af9013_read_signal_strength,
|
|
.read_snr = af9013_read_snr,
|
|
.read_ucblocks = af9013_read_ucblocks,
|
|
};
|
|
|
|
module_param_named(debug, af9013_debug, int, 0644);
|
|
MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
|
|
|
|
MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
|
|
MODULE_DESCRIPTION("Afatech AF9013 DVB-T demodulator driver");
|
|
MODULE_LICENSE("GPL");
|