632 lines
17 KiB
C
632 lines
17 KiB
C
/*
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* Support for OR51211 (pcHDTV HD-2000) - VSB
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*
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* Copyright (C) 2005 Kirk Lapray <kirk_lapray@bigfoot.com>
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*
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* Based on code from Jack Kelliher (kelliher@xmission.com)
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* Copyright (C) 2002 & pcHDTV, inc.
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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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/*
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* This driver needs external firmware. Please use the command
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* "<kerneldir>/Documentation/dvb/get_dvb_firmware or51211" to
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* download/extract it, and then copy it to /usr/lib/hotplug/firmware.
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*/
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#define OR51211_DEFAULT_FIRMWARE "dvb-fe-or51211.fw"
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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/device.h>
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#include <linux/firmware.h>
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#include <asm/byteorder.h>
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#include "dvb_frontend.h"
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#include "or51211.h"
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static int debug;
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#define dprintk(args...) \
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do { \
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if (debug) printk(KERN_DEBUG "or51211: " args); \
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} while (0)
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static u8 run_buf[] = {0x7f,0x01};
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static u8 cmd_buf[] = {0x04,0x01,0x50,0x80,0x06}; // ATSC
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struct or51211_state {
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struct i2c_adapter* i2c;
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struct dvb_frontend_ops ops;
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/* Configuration settings */
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const struct or51211_config* config;
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struct dvb_frontend frontend;
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struct bt878* bt;
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/* Demodulator private data */
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u8 initialized:1;
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/* Tuner private data */
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u32 current_frequency;
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};
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static int i2c_writebytes (struct or51211_state* state, u8 reg, u8 *buf,
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int len)
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{
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int err;
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struct i2c_msg msg;
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msg.addr = reg;
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msg.flags = 0;
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msg.len = len;
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msg.buf = buf;
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if ((err = i2c_transfer (state->i2c, &msg, 1)) != 1) {
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printk(KERN_WARNING "or51211: i2c_writebytes error "
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"(addr %02x, err == %i)\n", reg, err);
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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 u8 i2c_readbytes (struct or51211_state* state, u8 reg, u8* buf, int len)
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{
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int err;
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struct i2c_msg msg;
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msg.addr = reg;
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msg.flags = I2C_M_RD;
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msg.len = len;
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msg.buf = buf;
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if ((err = i2c_transfer (state->i2c, &msg, 1)) != 1) {
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printk(KERN_WARNING "or51211: i2c_readbytes error "
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"(addr %02x, err == %i)\n", reg, err);
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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 or51211_load_firmware (struct dvb_frontend* fe,
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const struct firmware *fw)
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{
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struct or51211_state* state = fe->demodulator_priv;
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u8 tudata[585];
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int i;
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dprintk("Firmware is %d bytes\n",fw->size);
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/* Get eprom data */
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tudata[0] = 17;
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if (i2c_writebytes(state,0x50,tudata,1)) {
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printk(KERN_WARNING "or51211:load_firmware error eprom addr\n");
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return -1;
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}
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if (i2c_readbytes(state,0x50,&tudata[145],192)) {
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printk(KERN_WARNING "or51211: load_firmware error eprom\n");
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return -1;
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}
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/* Create firmware buffer */
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for (i = 0; i < 145; i++)
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tudata[i] = fw->data[i];
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for (i = 0; i < 248; i++)
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tudata[i+337] = fw->data[145+i];
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state->config->reset(fe);
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if (i2c_writebytes(state,state->config->demod_address,tudata,585)) {
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printk(KERN_WARNING "or51211: load_firmware error 1\n");
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return -1;
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}
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msleep(1);
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if (i2c_writebytes(state,state->config->demod_address,
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&fw->data[393],8125)) {
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printk(KERN_WARNING "or51211: load_firmware error 2\n");
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return -1;
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}
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msleep(1);
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if (i2c_writebytes(state,state->config->demod_address,run_buf,2)) {
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printk(KERN_WARNING "or51211: load_firmware error 3\n");
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return -1;
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}
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/* Wait at least 5 msec */
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msleep(10);
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if (i2c_writebytes(state,state->config->demod_address,run_buf,2)) {
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printk(KERN_WARNING "or51211: load_firmware error 4\n");
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return -1;
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}
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msleep(10);
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printk("or51211: Done.\n");
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return 0;
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};
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static int or51211_setmode(struct dvb_frontend* fe, int mode)
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{
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struct or51211_state* state = fe->demodulator_priv;
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u8 rec_buf[14];
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state->config->setmode(fe, mode);
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if (i2c_writebytes(state,state->config->demod_address,run_buf,2)) {
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printk(KERN_WARNING "or51211: setmode error 1\n");
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return -1;
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}
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/* Wait at least 5 msec */
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msleep(10);
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if (i2c_writebytes(state,state->config->demod_address,run_buf,2)) {
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printk(KERN_WARNING "or51211: setmode error 2\n");
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return -1;
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}
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msleep(10);
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/* Set operation mode in Receiver 1 register;
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* type 1:
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* data 0x50h Automatic sets receiver channel conditions
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* Automatic NTSC rejection filter
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* Enable MPEG serial data output
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* MPEG2tr
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* High tuner phase noise
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* normal +/-150kHz Carrier acquisition range
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*/
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if (i2c_writebytes(state,state->config->demod_address,cmd_buf,3)) {
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printk(KERN_WARNING "or51211: setmode error 3\n");
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return -1;
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}
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rec_buf[0] = 0x04;
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rec_buf[1] = 0x00;
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rec_buf[2] = 0x03;
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rec_buf[3] = 0x00;
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msleep(20);
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if (i2c_writebytes(state,state->config->demod_address,rec_buf,3)) {
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printk(KERN_WARNING "or51211: setmode error 5\n");
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}
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msleep(3);
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if (i2c_readbytes(state,state->config->demod_address,&rec_buf[10],2)) {
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printk(KERN_WARNING "or51211: setmode error 6");
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return -1;
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}
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dprintk("setmode rec status %02x %02x\n",rec_buf[10],rec_buf[11]);
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return 0;
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}
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static int or51211_set_parameters(struct dvb_frontend* fe,
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struct dvb_frontend_parameters *param)
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{
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struct or51211_state* state = fe->demodulator_priv;
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u32 freq = 0;
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u16 tunerfreq = 0;
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u8 buf[4];
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/* Change only if we are actually changing the channel */
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if (state->current_frequency != param->frequency) {
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freq = 44000 + (param->frequency/1000);
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tunerfreq = freq * 16/1000;
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dprintk("set_parameters frequency = %d (tunerfreq = %d)\n",
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param->frequency,tunerfreq);
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buf[0] = (tunerfreq >> 8) & 0x7F;
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buf[1] = (tunerfreq & 0xFF);
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buf[2] = 0x8E;
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if (param->frequency < 157250000) {
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buf[3] = 0xA0;
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dprintk("set_parameters VHF low range\n");
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} else if (param->frequency < 454000000) {
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buf[3] = 0x90;
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dprintk("set_parameters VHF high range\n");
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} else {
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buf[3] = 0x30;
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dprintk("set_parameters UHF range\n");
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}
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dprintk("set_parameters tuner bytes: 0x%02x 0x%02x "
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"0x%02x 0x%02x\n",buf[0],buf[1],buf[2],buf[3]);
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if (i2c_writebytes(state,0xC2>>1,buf,4))
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printk(KERN_WARNING "or51211:set_parameters error "
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"writing to tuner\n");
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/* Set to ATSC mode */
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or51211_setmode(fe,0);
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/* Update current frequency */
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state->current_frequency = param->frequency;
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}
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return 0;
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}
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static int or51211_read_status(struct dvb_frontend* fe, fe_status_t* status)
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{
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struct or51211_state* state = fe->demodulator_priv;
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unsigned char rec_buf[2];
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unsigned char snd_buf[] = {0x04,0x00,0x03,0x00};
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*status = 0;
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/* Receiver Status */
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if (i2c_writebytes(state,state->config->demod_address,snd_buf,3)) {
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printk(KERN_WARNING "or51132: read_status write error\n");
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return -1;
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}
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msleep(3);
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if (i2c_readbytes(state,state->config->demod_address,rec_buf,2)) {
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printk(KERN_WARNING "or51132: read_status read error\n");
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return -1;
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}
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dprintk("read_status %x %x\n",rec_buf[0],rec_buf[1]);
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if (rec_buf[0] & 0x01) { /* Receiver Lock */
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*status |= FE_HAS_SIGNAL;
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*status |= FE_HAS_CARRIER;
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*status |= FE_HAS_VITERBI;
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*status |= FE_HAS_SYNC;
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*status |= FE_HAS_LOCK;
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}
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return 0;
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}
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/* log10-1 table at .5 increments from 1 to 100.5 */
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static unsigned int i100x20log10[] = {
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0, 352, 602, 795, 954, 1088, 1204, 1306, 1397, 1480,
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1556, 1625, 1690, 1750, 1806, 1858, 1908, 1955, 2000, 2042,
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2082, 2121, 2158, 2193, 2227, 2260, 2292, 2322, 2352, 2380,
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2408, 2434, 2460, 2486, 2510, 2534, 2557, 2580, 2602, 2623,
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2644, 2664, 2684, 2704, 2723, 2742, 2760, 2778, 2795, 2813,
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2829, 2846, 2862, 2878, 2894, 2909, 2924, 2939, 2954, 2968,
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2982, 2996, 3010, 3023, 3037, 3050, 3062, 3075, 3088, 3100,
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3112, 3124, 3136, 3148, 3159, 3170, 3182, 3193, 3204, 3214,
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3225, 3236, 3246, 3256, 3266, 3276, 3286, 3296, 3306, 3316,
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3325, 3334, 3344, 3353, 3362, 3371, 3380, 3389, 3397, 3406,
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3415, 3423, 3432, 3440, 3448, 3456, 3464, 3472, 3480, 3488,
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3496, 3504, 3511, 3519, 3526, 3534, 3541, 3549, 3556, 3563,
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3570, 3577, 3584, 3591, 3598, 3605, 3612, 3619, 3625, 3632,
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3639, 3645, 3652, 3658, 3665, 3671, 3677, 3683, 3690, 3696,
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3702, 3708, 3714, 3720, 3726, 3732, 3738, 3744, 3750, 3755,
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3761, 3767, 3772, 3778, 3784, 3789, 3795, 3800, 3806, 3811,
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3816, 3822, 3827, 3832, 3838, 3843, 3848, 3853, 3858, 3863,
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3868, 3874, 3879, 3884, 3888, 3893, 3898, 3903, 3908, 3913,
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3918, 3922, 3927, 3932, 3936, 3941, 3946, 3950, 3955, 3960,
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3964, 3969, 3973, 3978, 3982, 3986, 3991, 3995, 4000, 4004,
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};
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static unsigned int denom[] = {1,1,100,1000,10000,100000,1000000,10000000,100000000};
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static unsigned int i20Log10(unsigned short val)
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{
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unsigned int rntval = 100;
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unsigned int tmp = val;
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unsigned int exp = 1;
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while(tmp > 100) {tmp /= 100; exp++;}
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val = (2 * val)/denom[exp];
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if (exp > 1) rntval = 2000*exp;
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rntval += i100x20log10[val];
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return rntval;
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}
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static int or51211_read_signal_strength(struct dvb_frontend* fe, u16* strength)
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{
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struct or51211_state* state = fe->demodulator_priv;
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u8 rec_buf[2];
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u8 snd_buf[4];
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u8 snr_equ;
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/* SNR after Equalizer */
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snd_buf[0] = 0x04;
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snd_buf[1] = 0x00;
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snd_buf[2] = 0x04;
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snd_buf[3] = 0x00;
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if (i2c_writebytes(state,state->config->demod_address,snd_buf,3)) {
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printk(KERN_WARNING "or51211: read_status write error\n");
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return -1;
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}
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msleep(3);
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if (i2c_readbytes(state,state->config->demod_address,rec_buf,2)) {
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printk(KERN_WARNING "or51211: read_status read error\n");
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return -1;
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}
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snr_equ = rec_buf[0] & 0xff;
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/* The value reported back from the frontend will be FFFF=100% 0000=0% */
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*strength = (((5334 - i20Log10(snr_equ))/3+5)*65535)/1000;
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dprintk("read_signal_strength %i\n",*strength);
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return 0;
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}
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static int or51211_read_snr(struct dvb_frontend* fe, u16* snr)
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{
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struct or51211_state* state = fe->demodulator_priv;
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u8 rec_buf[2];
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u8 snd_buf[4];
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/* SNR after Equalizer */
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snd_buf[0] = 0x04;
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snd_buf[1] = 0x00;
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snd_buf[2] = 0x04;
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snd_buf[3] = 0x00;
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if (i2c_writebytes(state,state->config->demod_address,snd_buf,3)) {
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printk(KERN_WARNING "or51211: read_status write error\n");
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return -1;
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}
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msleep(3);
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if (i2c_readbytes(state,state->config->demod_address,rec_buf,2)) {
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printk(KERN_WARNING "or51211: read_status read error\n");
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return -1;
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}
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*snr = rec_buf[0] & 0xff;
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dprintk("read_snr %i\n",*snr);
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return 0;
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}
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static int or51211_read_ber(struct dvb_frontend* fe, u32* ber)
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{
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*ber = -ENOSYS;
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return 0;
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}
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static int or51211_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
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{
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*ucblocks = -ENOSYS;
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return 0;
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}
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static int or51211_sleep(struct dvb_frontend* fe)
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{
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return 0;
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}
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static int or51211_init(struct dvb_frontend* fe)
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{
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struct or51211_state* state = fe->demodulator_priv;
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const struct or51211_config* config = state->config;
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const struct firmware* fw;
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unsigned char get_ver_buf[] = {0x04,0x00,0x30,0x00,0x00};
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unsigned char rec_buf[14];
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int ret,i;
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if (!state->initialized) {
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/* Request the firmware, this will block until it uploads */
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printk(KERN_INFO "or51211: Waiting for firmware upload "
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"(%s)...\n", OR51211_DEFAULT_FIRMWARE);
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ret = config->request_firmware(fe, &fw,
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OR51211_DEFAULT_FIRMWARE);
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printk(KERN_INFO "or51211:Got Hotplug firmware\n");
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if (ret) {
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printk(KERN_WARNING "or51211: No firmware uploaded "
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"(timeout or file not found?)\n");
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return ret;
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}
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ret = or51211_load_firmware(fe, fw);
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if (ret) {
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printk(KERN_WARNING "or51211: Writing firmware to "
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"device failed!\n");
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release_firmware(fw);
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return ret;
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}
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printk(KERN_INFO "or51211: Firmware upload complete.\n");
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/* Set operation mode in Receiver 1 register;
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* type 1:
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* data 0x50h Automatic sets receiver channel conditions
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* Automatic NTSC rejection filter
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* Enable MPEG serial data output
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* MPEG2tr
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* High tuner phase noise
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* normal +/-150kHz Carrier acquisition range
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*/
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if (i2c_writebytes(state,state->config->demod_address,
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cmd_buf,3)) {
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printk(KERN_WARNING "or51211: Load DVR Error 5\n");
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return -1;
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}
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/* Read back ucode version to besure we loaded correctly */
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/* and are really up and running */
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rec_buf[0] = 0x04;
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rec_buf[1] = 0x00;
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rec_buf[2] = 0x03;
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rec_buf[3] = 0x00;
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msleep(30);
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if (i2c_writebytes(state,state->config->demod_address,
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rec_buf,3)) {
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printk(KERN_WARNING "or51211: Load DVR Error A\n");
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return -1;
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}
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msleep(3);
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if (i2c_readbytes(state,state->config->demod_address,
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&rec_buf[10],2)) {
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printk(KERN_WARNING "or51211: Load DVR Error B\n");
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return -1;
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}
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rec_buf[0] = 0x04;
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rec_buf[1] = 0x00;
|
|
rec_buf[2] = 0x01;
|
|
rec_buf[3] = 0x00;
|
|
msleep(20);
|
|
if (i2c_writebytes(state,state->config->demod_address,
|
|
rec_buf,3)) {
|
|
printk(KERN_WARNING "or51211: Load DVR Error C\n");
|
|
return -1;
|
|
}
|
|
msleep(3);
|
|
if (i2c_readbytes(state,state->config->demod_address,
|
|
&rec_buf[12],2)) {
|
|
printk(KERN_WARNING "or51211: Load DVR Error D\n");
|
|
return -1;
|
|
}
|
|
|
|
for (i = 0; i < 8; i++)
|
|
rec_buf[i]=0xed;
|
|
|
|
for (i = 0; i < 5; i++) {
|
|
msleep(30);
|
|
get_ver_buf[4] = i+1;
|
|
if (i2c_writebytes(state,state->config->demod_address,
|
|
get_ver_buf,5)) {
|
|
printk(KERN_WARNING "or51211:Load DVR Error 6"
|
|
" - %d\n",i);
|
|
return -1;
|
|
}
|
|
msleep(3);
|
|
|
|
if (i2c_readbytes(state,state->config->demod_address,
|
|
&rec_buf[i*2],2)) {
|
|
printk(KERN_WARNING "or51211:Load DVR Error 7"
|
|
" - %d\n",i);
|
|
return -1;
|
|
}
|
|
/* If we didn't receive the right index, try again */
|
|
if ((int)rec_buf[i*2+1]!=i+1){
|
|
i--;
|
|
}
|
|
}
|
|
dprintk("read_fwbits %x %x %x %x %x %x %x %x %x %x\n",
|
|
rec_buf[0], rec_buf[1], rec_buf[2], rec_buf[3],
|
|
rec_buf[4], rec_buf[5], rec_buf[6], rec_buf[7],
|
|
rec_buf[8], rec_buf[9]);
|
|
|
|
printk(KERN_INFO "or51211: ver TU%02x%02x%02x VSB mode %02x"
|
|
" Status %02x\n",
|
|
rec_buf[2], rec_buf[4],rec_buf[6],
|
|
rec_buf[12],rec_buf[10]);
|
|
|
|
rec_buf[0] = 0x04;
|
|
rec_buf[1] = 0x00;
|
|
rec_buf[2] = 0x03;
|
|
rec_buf[3] = 0x00;
|
|
msleep(20);
|
|
if (i2c_writebytes(state,state->config->demod_address,
|
|
rec_buf,3)) {
|
|
printk(KERN_WARNING "or51211: Load DVR Error 8\n");
|
|
return -1;
|
|
}
|
|
msleep(20);
|
|
if (i2c_readbytes(state,state->config->demod_address,
|
|
&rec_buf[8],2)) {
|
|
printk(KERN_WARNING "or51211: Load DVR Error 9\n");
|
|
return -1;
|
|
}
|
|
state->initialized = 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int or51211_get_tune_settings(struct dvb_frontend* fe,
|
|
struct dvb_frontend_tune_settings* fesettings)
|
|
{
|
|
fesettings->min_delay_ms = 500;
|
|
fesettings->step_size = 0;
|
|
fesettings->max_drift = 0;
|
|
return 0;
|
|
}
|
|
|
|
static void or51211_release(struct dvb_frontend* fe)
|
|
{
|
|
struct or51211_state* state = fe->demodulator_priv;
|
|
state->config->sleep(fe);
|
|
kfree(state);
|
|
}
|
|
|
|
static struct dvb_frontend_ops or51211_ops;
|
|
|
|
struct dvb_frontend* or51211_attach(const struct or51211_config* config,
|
|
struct i2c_adapter* i2c)
|
|
{
|
|
struct or51211_state* state = NULL;
|
|
|
|
/* Allocate memory for the internal state */
|
|
state = kmalloc(sizeof(struct or51211_state), GFP_KERNEL);
|
|
if (state == NULL)
|
|
goto error;
|
|
|
|
/* Setup the state */
|
|
state->config = config;
|
|
state->i2c = i2c;
|
|
memcpy(&state->ops, &or51211_ops, sizeof(struct dvb_frontend_ops));
|
|
state->initialized = 0;
|
|
state->current_frequency = 0;
|
|
|
|
/* Create dvb_frontend */
|
|
state->frontend.ops = &state->ops;
|
|
state->frontend.demodulator_priv = state;
|
|
return &state->frontend;
|
|
|
|
error:
|
|
kfree(state);
|
|
return NULL;
|
|
}
|
|
|
|
static struct dvb_frontend_ops or51211_ops = {
|
|
|
|
.info = {
|
|
.name = "Oren OR51211 VSB Frontend",
|
|
.type = FE_ATSC,
|
|
.frequency_min = 44000000,
|
|
.frequency_max = 958000000,
|
|
.frequency_stepsize = 166666,
|
|
.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_8VSB
|
|
},
|
|
|
|
.release = or51211_release,
|
|
|
|
.init = or51211_init,
|
|
.sleep = or51211_sleep,
|
|
|
|
.set_frontend = or51211_set_parameters,
|
|
.get_tune_settings = or51211_get_tune_settings,
|
|
|
|
.read_status = or51211_read_status,
|
|
.read_ber = or51211_read_ber,
|
|
.read_signal_strength = or51211_read_signal_strength,
|
|
.read_snr = or51211_read_snr,
|
|
.read_ucblocks = or51211_read_ucblocks,
|
|
};
|
|
|
|
module_param(debug, int, 0644);
|
|
MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
|
|
|
|
MODULE_DESCRIPTION("Oren OR51211 VSB [pcHDTV HD-2000] Demodulator Driver");
|
|
MODULE_AUTHOR("Kirk Lapray");
|
|
MODULE_LICENSE("GPL");
|
|
|
|
EXPORT_SYMBOL(or51211_attach);
|
|
|