diff options
| author | Tom Rondeau <trondeau@vt.edu> | 2013-03-17 17:45:38 -0400 |
|---|---|---|
| committer | Tom Rondeau <trondeau@vt.edu> | 2013-03-17 17:45:38 -0400 |
| commit | cab7429540a5790d4fe0997c3fa056386ebaca5f (patch) | |
| tree | b59758de225fe8ae83127cbeb42f377907073852 /gnuradio-core/src/lib/io/microtune_4702.cc | |
| parent | 1521e18e41d888dc938f88f92d051875a90e6cde (diff) | |
core: removed i2c, sdr1000, microtune code.
Diffstat (limited to 'gnuradio-core/src/lib/io/microtune_4702.cc')
| -rw-r--r-- | gnuradio-core/src/lib/io/microtune_4702.cc | 183 |
1 files changed, 0 insertions, 183 deletions
diff --git a/gnuradio-core/src/lib/io/microtune_4702.cc b/gnuradio-core/src/lib/io/microtune_4702.cc deleted file mode 100644 index 3ec072d51b..0000000000 --- a/gnuradio-core/src/lib/io/microtune_4702.cc +++ /dev/null @@ -1,183 +0,0 @@ -/* -*- c++-*- */ -/* - * Copyright 2001,2003,2004 Free Software Foundation, Inc. - * - * This file is part of GNU Radio - * - * GNU Radio is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 3, or (at your option) - * any later version. - * - * GNU Radio is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with GNU Radio; see the file COPYING. If not, write to - * the Free Software Foundation, Inc., 51 Franklin Street, - * Boston, MA 02110-1301, USA. - */ - -#include "microtune_4702.h" -#include <stdlib.h> -#include <stdio.h> -#include "i2c.h" - -static const double FIRST_IF = 36.00e6; - -// The tuner internally has 3 bands: VHF Low, VHF High & UHF. -// These are the recommened boundaries -static const double VHF_High_takeover = 174e6; -static const double UHF_takeover = 470e6; - -static int PLL_I2C_ADDR = 0x60; - -static unsigned char -control_byte_1 (bool prescaler, int reference_divisor) -{ - int c = 0x80; - //Note: Last two divider bits (bits 2 and 3 of this byte) determined later - if (prescaler) - c |= 0x10; - - switch (reference_divisor){ - case 2: - c |= 0x00; break; - case 4: - c |= 0x01; break; - case 8: - c |= 0x02; break; - case 16: - c |= 0x03; break; - case 32: - c |= 0x04; break; - case 64: - c |= 0x05; break; - case 128: - c |= 0x06; break; - case 256: - c |= 0x07; break; - case 24: - c |= 0x08; break; - case 5: - c |= 0x09; break; - case 10: - c |= 0x0A; break; - case 20: - c |= 0x0B; break; - case 40: - c |= 0x0C; break; - case 80: - c |= 0x0D; break; - case 160: - c |= 0x0E; break; - case 320: - c |= 0x0F; break; - default: - abort (); - } - return c; -} - -static unsigned char -control_byte_2 (double target_freq) -{ - int c; - - if (target_freq < VHF_High_takeover) // VHF low - c = 0x8E; - - else if (target_freq < UHF_takeover){ // VHF high - c = 0x05; - if (target_freq < 390e6) - c |= 0x40; - else - c |= 0x80; - } - else { // UHF - c = 0x03; - if (target_freq < 750e6) - c |= 0x80; - else - c |= 0xC0; - } - - return c; -} - - -microtune_4702::microtune_4702 (i2c_sptr i2c, int i2c_addr) -{ - d_i2c = i2c; - d_i2c_addr = i2c_addr; - d_reference_divider = 320; - d_prescaler = false; -} - -microtune_4702::~microtune_4702 () -{ - // nop -} - -/*! - * \brief select RF frequency to be tuned to output frequency. - * \p target_freq is the requested frequency in Hz, \p actual_freq - * is set to the actual frequency tuned. It takes about 100 ms - * for the PLL to settle. - * - * \returns true iff sucessful. - */ -bool -microtune_4702::set_RF_freq (double target_freq, double *p_actual_freq) -{ - unsigned char buf[4]; - - double target_f_osc = target_freq + FIRST_IF; - - double f_ref = 4e6 / d_reference_divider; - - //int divisor = (int) ((target_f_osc + (f_ref * 4)) / (f_ref * 8)); - - long int divisor = (long int) (target_f_osc / f_ref); - double actual_freq = (f_ref * divisor) - FIRST_IF; - if (p_actual_freq != 0) - *p_actual_freq = actual_freq; - - if ((divisor & ~0x1ffff) != 0) // >17 bit divisor - return false; - - buf[0] = ((divisor & 0x07f00) >> 8) & 0xff; // DB1 - buf[1] = divisor & 0xff; // DB2 - buf[2] = control_byte_1 (d_prescaler, d_reference_divider); - buf[2] = buf[2] | (((divisor & 0x18000) >> 10) & 0xff); - buf[3] = control_byte_2 (target_freq); - - printf ("%x\n", PLL_I2C_ADDR); -//#if 0 - printf ("set_RF_freq: target: %g MHz actual: %g MHz %02x %02x %02x %02x\n", - target_freq/1e6, actual_freq/1e6, buf[0], buf[1], buf[2], buf[3]); -//#endif - - return d_i2c->write (d_i2c_addr, buf, sizeof (buf)); -} - -/*! - * \returns true iff PLL is locked - */ -bool -microtune_4702::pll_locked_p () -{ - // FIXME - return true; -} - -/*! - * \returns the output frequency of the tuner in Hz. - */ -double -microtune_4702::get_output_freq () -{ - return FIRST_IF; -} |