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authorJosh Blum <josh@joshknows.com>2010-02-10 12:30:05 -0800
committerJosh Blum <josh@joshknows.com>2010-02-10 12:30:05 -0800
commita61cc56bb6d544742487326ccba7c457bbddb0e6 (patch)
tree26fd06055ab5fa9eb11c3439321c78dba96cd201 /firmware/microblaze/lib/db_dbsrx.c
parentd088a11bf7c257ba45bf0c37a41e5038b302bc44 (diff)
downloaduhd-a61cc56bb6d544742487326ccba7c457bbddb0e6.tar.gz
uhd-a61cc56bb6d544742487326ccba7c457bbddb0e6.tar.bz2
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removed dboard files
Diffstat (limited to 'firmware/microblaze/lib/db_dbsrx.c')
-rw-r--r--firmware/microblaze/lib/db_dbsrx.c395
1 files changed, 0 insertions, 395 deletions
diff --git a/firmware/microblaze/lib/db_dbsrx.c b/firmware/microblaze/lib/db_dbsrx.c
deleted file mode 100644
index 2174a6cd8..000000000
--- a/firmware/microblaze/lib/db_dbsrx.c
+++ /dev/null
@@ -1,395 +0,0 @@
-/* -*- c++ -*- */
-/*
- * Copyright 2009 Free Software Foundation, Inc.
- *
- * This program 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 of the License, or
- * (at your option) any later version.
- *
- * This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <i2c.h>
-#include <db_base.h>
-#include <lsdac.h>
-#include <memory_map.h>
-#include <clocks.h>
-#include <stdio.h>
-#include <hal_io.h>
-
-#define min(X,Y) ((X) < (Y) ? (X) : (Y))
-#define max(X,Y) ((X) > (Y) ? (X) : (Y))
-#define abs(X) ((X) < (0) ? ((-1)*(X)) : (X))
-
-#define I2C_ADDR 0x67
-#define REFCLK_DIVISOR 25 // Gives a 4 MHz clock
-#define REFCLK_FREQ U2_DOUBLE_TO_FXPT_FREQ(MASTER_CLK_RATE/REFCLK_DIVISOR)
-#define REFCLK_FREQ_INT u2_fxpt_freq_round_to_int(REFCLK_FREQ)
-
-#define VMAXGAIN .75
-#define VMINGAIN 2.6
-#define RFGAINMAX 60
-#define BBGAINMAX 24
-#define DACFULLSCALE 3.3
-
-bool db_dbsrx_init(struct db_base *db);
-bool db_dbsrx_set_freq(struct db_base *db, u2_fxpt_freq_t freq, u2_fxpt_freq_t *dc);
-bool db_dbsrx_set_gain(struct db_base *db, u2_fxpt_gain_t gain);
-
-struct db_dbsrx_common {
- int d_n;
- int d_div2;
- int d_osc;
- int d_cp;
- int d_r_reg;
- int d_fdac;
- int d_m;
- int d_dl;
- int d_ade;
- int d_adl;
- int d_gc2;
- int d_diag;
-};
-
-struct db_dbsrx_dummy {
- struct db_base base;
- struct db_dbsrx_common common;
-};
-
-struct db_dbsrx {
- struct db_base base;
- struct db_dbsrx_common common;
-};
-
-struct db_dbsrx db_dbsrx = {
- .base.dbid = 0x000d,
- .base.is_tx = false,
- .base.output_enables = 0x0000,
- .base.used_pins = 0x0000,
- .base.freq_min = U2_DOUBLE_TO_FXPT_FREQ(500e6),
- .base.freq_max = U2_DOUBLE_TO_FXPT_FREQ(2.6e9),
- .base.gain_min = U2_DOUBLE_TO_FXPT_GAIN(0),
- .base.gain_max = U2_DOUBLE_TO_FXPT_GAIN(RFGAINMAX+BBGAINMAX),
- .base.gain_step_size = U2_DOUBLE_TO_FXPT_GAIN(1),
- .base.is_quadrature = true,
- .base.i_and_q_swapped = false,
- .base.spectrum_inverted = false,
- .base.default_lo_offset = U2_DOUBLE_TO_FXPT_FREQ(0),
- .base.init = db_dbsrx_init,
- .base.set_freq = db_dbsrx_set_freq,
- .base.set_gain = db_dbsrx_set_gain,
- .base.set_tx_enable = 0,
- .base.atr_mask = 0x0000,
- .base.atr_txval = 0,
- .base.atr_rxval = 0,
- //.base.atr_tx_delay =
- //.base.atr_rx_delay =
- .common.d_n = 950,
- .common.d_div2 = 0,
- .common.d_osc = 5,
- .common.d_cp = 3,
- .common.d_r_reg = 1,
- .common.d_fdac = 127,
- .common.d_m = 2,
- .common.d_dl = 1,
- .common.d_ade = 0,
- .common.d_adl = 0,
- .common.d_gc2 = 31,
- .common.d_diag = 0,
-};
-
-bool
-db_dbsrx_init(struct db_base *dbb){
- struct db_dbsrx_dummy *db = (struct db_dbsrx_dummy *) dbb;
- db->base.set_gain(dbb, (db->base.gain_max + db->base.gain_min)/2);
- clocks_enable_rx_dboard(true, REFCLK_DIVISOR); // Gives 4 MHz clock
-
- return true;
-}
-
-/**************************************************
- * Registers
- **************************************************/
-static int
-_read_adc (void){
- unsigned char readback[2];
- i2c_read(I2C_ADDR, readback, 2*sizeof(unsigned char));
- int adc_val = (readback[0] >> 2)&7;
- //printf("READBACK[0] %d, [1] %d\n",readback[0],readback[1]);
- //printf("ADC: %d\n",adc_val);
- return adc_val;
-}
-
-static void
-_write_reg (int regno, int v){
- //regno is in [0,5], v is value to write to register"""
- unsigned char args[2];
- args[0] = (unsigned char)regno;
- args[1] = (unsigned char)v;
- i2c_write(I2C_ADDR, args, 2*sizeof(unsigned char));
- //printf("Reg %d, Val %x\n",regno,v);
-}
-
-static void _send_reg_0(struct db_dbsrx_dummy *db){
- _write_reg(0,(db->common.d_div2<<7) + (db->common.d_n>>8));
-}
-
-static void _send_reg_1(struct db_dbsrx_dummy *db){
- _write_reg(1,db->common.d_n & 255);
-}
-
-static void _send_reg_2(struct db_dbsrx_dummy *db){
- _write_reg(2,db->common.d_osc + (db->common.d_cp<<3) + (db->common.d_r_reg<<5));
-}
-
-static void _send_reg_3(struct db_dbsrx_dummy *db){
- _write_reg(3,db->common.d_fdac);
-}
-
-static void _send_reg_4(struct db_dbsrx_dummy *db){
- _write_reg(4,db->common.d_m + (db->common.d_dl<<5) + (db->common.d_ade<<6) + (db->common.d_adl<<7));
-}
-
-static void _send_reg_5(struct db_dbsrx_dummy *db){
- _write_reg(5,db->common.d_gc2 + (db->common.d_diag<<5));
-}
-
-/**************************************************
- * Helpers for setting the freq
- **************************************************/
-static void
-_set_div2(struct db_dbsrx_dummy *db, int div2){
- db->common.d_div2 = div2;
- _send_reg_0(db);
-}
-
-// FIXME How do we handle ADE and ADL properly?
-static void
-_set_ade(struct db_dbsrx_dummy *db, int ade){
- db->common.d_ade = ade;
- _send_reg_4(db);
-}
-
-static void
-_set_r(struct db_dbsrx_dummy *db, int r){
- db->common.d_r_reg = r;
- _send_reg_2(db);
-}
-
-static void
-_set_n(struct db_dbsrx_dummy *db, int n){
- db->common.d_n = n;
- _send_reg_0(db);
- _send_reg_1(db);
-}
-
-static void
-_set_osc(struct db_dbsrx_dummy *db, int osc){
- db->common.d_osc = osc;
- _send_reg_2(db);
-}
-
-static void
-_set_cp(struct db_dbsrx_dummy *db, int cp){
- db->common.d_cp = cp;
- _send_reg_2(db);
-}
-
-/**************************************************
- * Set the freq
- **************************************************/
-
-
-bool
-db_dbsrx_set_freq(struct db_base *dbb, u2_fxpt_freq_t freq, u2_fxpt_freq_t *dc){
- struct db_dbsrx_dummy *db = (struct db_dbsrx_dummy *) dbb;
-
- if(!(freq>=db->base.freq_min && freq<=db->base.freq_max)) {
- return false;
- }
-
- u2_fxpt_freq_t vcofreq;
- if(freq < U2_DOUBLE_TO_FXPT_FREQ(1150e6)) {
- _set_div2(db, 0);
- vcofreq = 4 * freq;
- }
- else {
- _set_div2(db, 1);
- vcofreq = 2 * freq;
- }
-
- _set_ade(db, 1);
- int rmin = max(2, u2_fxpt_freq_round_to_int(REFCLK_FREQ/2e6)); //TODO? remove max()
- //int rmax = min(128, u2_fxpt_freq_round_to_int(REFCLK_FREQ/500e3)); //TODO? remove min()
- int n = 0;
- u2_fxpt_freq_t best_delta = U2_DOUBLE_TO_FXPT_FREQ(10e6);
- u2_fxpt_freq_t delta;
-
- int r_reg = 0;
- while ((r_reg<7) && ((2<<r_reg) < rmin)) {
- r_reg++;
- }
- //printf ("r_reg = %d, r = %d\n",r_reg,2<<r_reg);
- int best_r = r_reg;
- int best_n = 0;
-
- while(r_reg <= 7) {
- n = u2_fxpt_freq_round_to_int(freq/REFCLK_FREQ_INT*(2<<r_reg));
- //printf("LOOP: r_reg %d, best_r %d, best_n %d, best_delta %d\n",
- //r_reg,best_r,best_n,u2_fxpt_freq_round_to_int(best_delta));
-
- //printf("N: %d\n",n);
- if(n<256) {
- r_reg++;
- continue;
- }
- delta = abs(n*REFCLK_FREQ/(2<<r_reg) - freq);
- if(delta < best_delta) {
- best_r = r_reg;
- best_n = n;
- best_delta = delta;
- }
- if(best_delta < U2_DOUBLE_TO_FXPT_FREQ(75e3)) {
- break;
- }
- r_reg++;
- }
-
- //printf("BEST R: %d Best Delta %d Best N %d\n",
- // best_r,u2_fxpt_freq_round_to_int(best_delta),best_n);
- _set_r(db, best_r);
- _set_n(db, best_n);
-
- int vco;
- if(vcofreq < U2_DOUBLE_TO_FXPT_FREQ(2433e6))
- vco = 0;
- else if(vcofreq < U2_DOUBLE_TO_FXPT_FREQ(2711e6))
- vco=1;
- else if(vcofreq < U2_DOUBLE_TO_FXPT_FREQ(3025e6))
- vco=2;
- else if(vcofreq < U2_DOUBLE_TO_FXPT_FREQ(3341e6))
- vco=3;
- else if(vcofreq < U2_DOUBLE_TO_FXPT_FREQ(3727e6))
- vco=4;
- else if(vcofreq < U2_DOUBLE_TO_FXPT_FREQ(4143e6))
- vco=5;
- else if(vcofreq < U2_DOUBLE_TO_FXPT_FREQ(4493e6))
- vco=6;
- else
- vco=7;
- //printf("Initial VCO choice %d\n",vco);
- _set_osc(db, vco);
-
-
- int adc_val = 0;
- while(adc_val == 0 || adc_val == 7) {
- adc_val = _read_adc();
- //printf("adc %d\n",adc_val);
-
- if(adc_val == 0) {
- if(vco <= 0) {
- return false;
- }
- else {
- vco = vco - 1;
- }
- }
- else if(adc_val == 7) {
- if(vco >= 7) {
- return false;
- }
- else {
- vco = vco + 1;
- }
- }
- _set_osc(db, vco);
- }
-
- if(adc_val == 1 || adc_val == 2) {
- _set_cp(db, 1);
- }
- else if(adc_val == 3 || adc_val == 4) {
- _set_cp(db, 2);
- }
- else {
- _set_cp(db, 3);
- }
- //printf("Final VCO choice %d\n",vco);
-
- *dc = db->common.d_n * REFCLK_FREQ / (2<<db->common.d_r_reg);
- return true;
-
-}
-
-/**************************************************
- * Helpers for setting the gain
- **************************************************/
-
-static void
-_set_gc2(struct db_dbsrx_dummy *db, int gc2){
- db->common.d_gc2 = gc2;
- _send_reg_5(db);
-}
-
-/**************************************************
- * Set the gain
- **************************************************/
-bool
-db_dbsrx_set_gain(struct db_base *dbb, u2_fxpt_gain_t gain){
- struct db_dbsrx_dummy *db = (struct db_dbsrx_dummy *) dbb;
-
- u2_fxpt_gain_t rfgain, bbgain;
-
- if(!(gain >= db->base.gain_min && gain <= db->base.gain_max)) {
- return false;
- }
-
- if(gain < U2_DOUBLE_TO_FXPT_GAIN(RFGAINMAX)) {
- rfgain = gain;
- bbgain = 0;
- }
- else {
- rfgain = U2_DOUBLE_TO_FXPT_GAIN(RFGAINMAX);
- bbgain = gain - U2_DOUBLE_TO_FXPT_GAIN(RFGAINMAX);
- }
-
- int rf_gain_slope_q8 = 256 * 4096 * (VMAXGAIN-VMINGAIN) / RFGAINMAX / DACFULLSCALE;
- int rf_gain_offset_q8 = 128 * 256 * 4096 * VMINGAIN / DACFULLSCALE;
-
- int rfdac = (rfgain*rf_gain_slope_q8 + rf_gain_offset_q8)>>15;
-
- //printf("Set RF Gain %d, %d\n",rfgain,rfdac);
- lsdac_write_rx(1,rfdac);
-
- // Set GC2
- int bb_gain_slope_q8 = 256*(0-31)/(BBGAINMAX-0);
-
- int gc2 = u2_fxpt_gain_round_to_int((bb_gain_slope_q8 * bbgain)>>8) + 31;
- //printf("Set BB Gain: %d, gc2 %d\n",bbgain,gc2);
-
- _set_gc2(db, gc2);
-
- return true;
-}
-
-/**************************************************
- * Helpers for setting the bw
- **************************************************/
-static void
-_set_m(struct db_dbsrx_dummy *db, int m){
- db->common.d_m = m;
- _send_reg_4(db);
-}
-
-static void
-_set_fdac(struct db_dbsrx_dummy *db, int fdac){
- db->common.d_fdac = fdac;
- _send_reg_3(db);
-}