From: Jason Abele <jason@ettus.com>
Date: Thu, 3 Jun 2010 19:49:03 +0000 (-0700)
Subject: Fixing wbx to use _refclk_freq()
X-Git-Url: https://git.gag.com/?a=commitdiff_plain;ds=sidebyside;h=1e44cf9e9c46c83e9acde104478fa2bd9acadc35;p=debian%2Fgnuradio

Fixing wbx to use _refclk_freq()
---

diff --git a/usrp/host/include/usrp/db_wbxng.h b/usrp/host/include/usrp/db_wbxng.h
index 8611d478..d0caf8b0 100644
--- a/usrp/host/include/usrp/db_wbxng.h
+++ b/usrp/host/include/usrp/db_wbxng.h
@@ -40,6 +40,7 @@ public:
   double freq_max();
 
 protected:
+  int _refclk_divisor();
   bool _lock_detect();
   bool _set_pga(float pga_gain);
 
diff --git a/usrp/host/lib/db_wbxng.cc b/usrp/host/lib/db_wbxng.cc
index bd836dfe..0666025b 100644
--- a/usrp/host/lib/db_wbxng.cc
+++ b/usrp/host/lib/db_wbxng.cc
@@ -71,6 +71,12 @@ wbxng_base::~wbxng_base()
     delete d_common;
 }
 
+int
+wbxng_base::_refclk_divisor()
+{
+  return 1;
+}
+
 struct freq_result_t
 wbxng_base::set_freq(double freq)
 {
@@ -83,8 +89,8 @@ wbxng_base::set_freq(double freq)
   // clamp freq
   freq_t int_freq = freq_t(std::max(freq_min(), std::min(freq, freq_max())));
 
-  bool ok = d_common->_set_freq(int_freq*2);
-  double freq_result = (double) d_common->_get_freq()/2.0;
+  bool ok = d_common->_set_freq(int_freq*2, _refclk_freq());
+  double freq_result = (double) d_common->_get_freq(_refclk_freq())/2.0;
   struct freq_result_t args = {ok, freq_result};
 
   /* Wait before reading Lock Detect*/
diff --git a/usrp/host/lib/db_wbxng_adf4350.cc b/usrp/host/lib/db_wbxng_adf4350.cc
index c17e8d67..fe80ccee 100644
--- a/usrp/host/lib/db_wbxng_adf4350.cc
+++ b/usrp/host/lib/db_wbxng_adf4350.cc
@@ -27,9 +27,7 @@
 #include <stdio.h>
 
 #define FREQ_C(freq) uint64_t(freq)
-#define INPUT_REF_FREQ FREQ_C(64e6)
 #define DIV_ROUND(num, denom) (((num) + ((denom)/2))/(denom))
-#define INPUT_REF_FREQ_2X (2*INPUT_REF_FREQ)                            /* input ref freq with doubler turned on */
 #define MIN_INT_DIV uint16_t(23)                                        /* minimum int divider, prescaler 4/5 only */
 #define MAX_RF_DIV uint8_t(16)                                          /* max rf divider, divides rf output */
 #define MIN_VCO_FREQ FREQ_C(2.2e9)                                      /* minimum vco freq */
@@ -130,7 +128,7 @@ adf4350::_write(uint8_t addr, uint32_t data)
 }
 
 bool
-adf4350::_set_freq(freq_t freq)
+adf4350::_set_freq(freq_t freq, freq_t refclock_freq)
 {
     /* Set the frequency by setting int, frac, mod, r, div */
     if (freq > MAX_FREQ || freq < MIN_FREQ) return false;
@@ -147,7 +145,7 @@ adf4350::_set_freq(freq_t freq)
         d_regs->d_divider_select++; //double the divider
     }
     /* Ramp up the R divider until the N divider is at least the minimum. */
-    //d_regs->d_10_bit_r_counter = INPUT_REF_FREQ*MIN_INT_DIV/freq;
+    //d_regs->d_10_bit_r_counter = refclock_freq*MIN_INT_DIV/freq;
     d_regs->d_10_bit_r_counter = 2;
     uint64_t n_mod;
     do{
@@ -155,7 +153,7 @@ adf4350::_set_freq(freq_t freq)
         n_mod = freq;
         n_mod *= d_regs->d_10_bit_r_counter;
         n_mod *= d_regs->d_mod;
-        n_mod /= INPUT_REF_FREQ;
+        n_mod /= refclock_freq;
         /* calculate int and frac */
         d_regs->d_int = n_mod/d_regs->d_mod;
         d_regs->d_frac = (n_mod - (freq_t)d_regs->d_int*d_regs->d_mod) & uint16_t(0xfff);
@@ -169,11 +167,11 @@ adf4350::_set_freq(freq_t freq)
     }while(d_regs->d_int < min_int_div);
     /* calculate the band select so PFD is under 125 KHz */
     d_regs->d_8_bit_band_select_clock_divider_value = \
-        INPUT_REF_FREQ/(FREQ_C(30e3)*d_regs->d_10_bit_r_counter) + 1;
+        refclock_freq/(FREQ_C(30e3)*d_regs->d_10_bit_r_counter) + 1;
     /*
     fprintf(stderr, "Band Selection: Div %u, Freq %lu\n",
         d_regs->d_8_bit_band_select_clock_divider_value,
-        INPUT_REF_FREQ/(d_regs->d_8_bit_band_select_clock_divider_value * d_regs->d_10_bit_r_counter) + 1
+        refclock_freq/(d_regs->d_8_bit_band_select_clock_divider_value * d_regs->d_10_bit_r_counter) + 1
     );
     */
     d_regs->_load_register(5);
@@ -187,7 +185,7 @@ adf4350::_set_freq(freq_t freq)
 }
 
 freq_t
-adf4350::_get_freq(void)
+adf4350::_get_freq(freq_t refclock_freq)
 {
     /* Calculate the freq from int, frac, mod, ref, r, div:
      *  freq = (int + frac/mod) * (ref/r)
@@ -198,7 +196,7 @@ adf4350::_get_freq(void)
     temp = d_regs->d_int;
     temp *= d_regs->d_mod;
     temp += d_regs->d_frac;
-    temp *= INPUT_REF_FREQ;
+    temp *= refclock_freq;
     temp /= d_regs->d_mod;
     temp /= d_regs->d_10_bit_r_counter;
     temp /= (1 << d_regs->d_divider_select);
diff --git a/usrp/host/lib/db_wbxng_adf4350.h b/usrp/host/lib/db_wbxng_adf4350.h
index 2b0783c2..ca8de6eb 100644
--- a/usrp/host/lib/db_wbxng_adf4350.h
+++ b/usrp/host/lib/db_wbxng_adf4350.h
@@ -37,8 +37,8 @@ public:
     bool _get_locked();
     void _enable(bool enable);
     void _write(uint8_t addr, uint32_t data);
-    bool _set_freq(freq_t freq);
-    freq_t _get_freq();
+    bool _set_freq(freq_t freq, freq_t refclock_freq);
+    freq_t _get_freq(freq_t refclock_freq);
     freq_t _get_max_freq();
     freq_t _get_min_freq();