removed unused firmware code

3 files changed, 0 insertions, 370 deletions

diff --git a/firmware/microblaze/lib/db.h b/firmware/microblaze/lib/db.h
index 5153822c6..358cb222b 100644
--- a/firmware/microblaze/lib/db.h
+++ b/firmware/microblaze/lib/db.h
@@ -28,82 +28,4 @@
 
 int read_dboard_eeprom(int i2c_addr);
 
-struct db_base;
-
-/* pointers to daughterboard structures */
-extern struct db_base *tx_dboard;
-extern struct db_base *rx_dboard;
-
-
-//! Intermediate tuning information
-
-struct tune_result
-{
-  //! The RF frequency that corresponds to DC in the IF from the daughterboard
-  u2_fxpt_freq_t 	baseband_freq;
-
-  //! The DDC/DUC frequency used to down/up convert to/from the target frequency
-  u2_fxpt_freq_t 	dxc_freq;
-
-  //! Any differerence btwn target and actual (typically < 0.01 Hz)
-  u2_fxpt_freq_t 	residual_freq;
-
-  //! Is the complex baseband spectrum inverted
-  bool			inverted;
-};
-
-
-/*!
- * \brief One-time init at powerup
- *
- *  Sets rx_dboard, tx_dboard and initializes daughterboards.
- */
-void 
-db_init(void);
-
-/*!
- * \brief Set daughterboard LO offset frequency.
- *
- * \param[in] db is the daughterboard instance
- * \param[in] offset is the amount to add to tuning requests
- * \param[out] success or failure
- */
-bool
-db_set_lo_offset(struct db_base *db, u2_fxpt_freq_t offset);
-
-/*!
- * \brief Two stage tuning.  Given target_freq, tune LO and DDC/DUC
- *
- * \param[in] db is the daughterboard instance
- * \param[in] target_freq is the freq to translate the complex baseband to/from.
- * \param[out] result provides details of the resulting configuration.
- * 
- */
-bool
-db_tune(struct db_base *db, u2_fxpt_freq_t target_freq, struct tune_result *result);
-
-
-/*
- * Set only the DDC frequency
- */
-bool
-db_set_ddc_freq(u2_fxpt_freq_t dxc_freq, u2_fxpt_freq_t *actual_dxc_freq);
-
-/*
- * Set only the DUC frequency
- */
-bool
-db_set_duc_freq(u2_fxpt_freq_t dxc_freq, u2_fxpt_freq_t *actual_dxc_freq);
-
-
-/*!
- * \brief Set gain
- */
-bool
-db_set_gain(struct db_base *db, u2_fxpt_gain_t gain);
- 
-
-void
-set_atr_regs(int bank, int atr_rxval, int atr_txval);
-
 #endif /* INCLUDED_DB_H */
diff --git a/firmware/microblaze/lib/db_init.c b/firmware/microblaze/lib/db_init.c
index 4a0b49ada..23805d9cd 100644
--- a/firmware/microblaze/lib/db_init.c
+++ b/firmware/microblaze/lib/db_init.c
@@ -75,294 +75,3 @@ read_dboard_eeprom(int i2c_addr)
     return -2;
   }
 }
-
-
-static struct db_base *
-lookup_dbid(int dbid)
-{
-  return 0;
-}
-
-static struct db_base *
-lookup_dboard(int i2c_addr, struct db_base *default_db, char *msg)
-{
-  struct db_base *db;
-  int dbid = read_dboard_eeprom(i2c_addr);
-
-  // FIXME removing this printf has the system hang if there are two d'boards
-  // installed.  (I think the problem is in i2c_read/write or the way
-  // I kludge the zero-byte write to set the read address in eeprom_read.)
-  printf("%s dbid: 0x%x\n", msg, dbid);
-
-  if (dbid < 0){	// there was some kind of problem.  Treat as Basic Tx
-    return default_db;
-  }
-  else if ((db = lookup_dbid(dbid)) == 0){
-    printf("No daugherboard code for dbid = 0x%x\n", dbid);
-    return default_db;
-  }
-  return db;
-}
-
-void
-set_atr_regs(int bank, int atr_rxval, int atr_txval)
-{
-  uint32_t	val[4];
-  int		shift;
-  int		mask;
-  int		i;
-
-  val[ATR_IDLE] = atr_rxval;
-  val[ATR_RX]   = atr_rxval;
-  val[ATR_TX]   = atr_txval;
-  val[ATR_FULL] = atr_txval;
-
-  if (bank == GPIO_TX_BANK){
-    mask = 0xffff0000;
-    shift = 16;
-  }
-  else {
-    mask = 0x0000ffff;
-    shift = 0;
-  }
-
-  for (i = 0; i < 4; i++){
-    int t = (atr_regs->v[i] & ~mask) | ((val[i] << shift) & mask);
-    //printf("atr_regs[%d] = 0x%x\n", i, t);
-    atr_regs->v[i] = t;
-  }
-}
-
-static void
-set_gpio_mode(int bank, struct db_base *db)
-{
-  int	i;
-
-  hal_gpio_set_ddr(bank, /*db->output_enables*/0, 0xffff);
-  //set_atr_regs(bank, db);
-
-  for (i = 0; i < 16; i++){
-    if (/*db->used_pins*/0 & (1 << i)){
-      // set to either GPIO_SEL_SW or GPIO_SEL_ATR
-      hal_gpio_set_sel(bank, i, (/*db->atr_mask*/0 & (1 << i)) ? 'a' : 's');
-    }
-  }
-}
-
-static int __attribute__((unused))
-determine_tx_mux_value(struct db_base *db) 
-{
-  if (/*db->i_and_q_swapped*/0)
-    return 0x01;
-  else
-    return 0x10;
-}
-
-static int
-determine_rx_mux_value(struct db_base *db)
-{
-#define	ADC0 0x0
-#define	ADC1 0x1
-#define ZERO 0x2
-  
-  static int truth_table[8] = {
-    /* swap_iq, uses */
-    /* 0, 0x0 */    (ZERO << 2) | ZERO,		// N/A
-    /* 0, 0x1 */    (ZERO << 2) | ADC0,
-    /* 0, 0x2 */    (ZERO << 2) | ADC1,
-    /* 0, 0x3 */    (ADC1 << 2) | ADC0,
-    /* 1, 0x0 */    (ZERO << 2) | ZERO,		// N/A
-    /* 1, 0x1 */    (ZERO << 2) | ADC0,
-    /* 1, 0x2 */    (ZERO << 2) | ADC1,
-    /* 1, 0x3 */    (ADC0 << 2) | ADC1,
-  };
-
-  int	subdev0_uses;
-  int	subdev1_uses;
-  int	uses;
-
-  if (/*db->is_quadrature*/0)
-    subdev0_uses = 0x3;		// uses A/D 0 and 1
-  else
-    subdev0_uses = 0x1;		// uses A/D 0 only
-
-  // FIXME second subdev on Basic Rx, LF RX
-  // if subdev2 exists
-  // subdev1_uses = 0x2;
-  subdev1_uses = 0;
-
-  uses = subdev0_uses;
-
-  int swap_iq = /*db->i_and_q_swapped*/0 & 0x1;
-  int index = (swap_iq << 2) | uses;
-
-  return truth_table[index];
-}
-
-
-void
-db_init(void)
-{
-  /*int	m;
-
-  tx_dboard = lookup_dboard(I2C_ADDR_TX_A, &db_basic_tx, "Tx");
-  //printf("db_init: tx dbid = 0x%x\n", tx_dboard->dbid);
-  set_gpio_mode(GPIO_TX_BANK, tx_dboard);
-  tx_dboard->init(tx_dboard);
-  m = determine_tx_mux_value(tx_dboard);
-  dsp_tx_regs->tx_mux = m;
-  //printf("tx_mux = 0x%x\n", m);
-  tx_dboard->current_lo_offset = tx_dboard->default_lo_offset;
-
-  rx_dboard = lookup_dboard(I2C_ADDR_RX_A, &db_basic_rx, "Rx");
-  //printf("db_init: rx dbid = 0x%x\n", rx_dboard->dbid);
-  set_gpio_mode(GPIO_RX_BANK, rx_dboard);
-  rx_dboard->init(rx_dboard);
-  m = determine_rx_mux_value(rx_dboard);
-  dsp_rx_regs->rx_mux = m;
-  //printf("rx_mux = 0x%x\n", m);
-  rx_dboard->current_lo_offset = rx_dboard->default_lo_offset;*/
-}
-
-/*!
- *  Calculate the frequency to use for setting the digital down converter.
- *
- *  \param[in] target_freq   desired RF frequency (Hz)
- *  \param[in] baseband_freq the RF frequency that corresponds to DC in the IF.
- * 
- *  \param[out] dxc_freq is the value for the ddc
- *  \param[out] inverted is true if we're operating in an inverted Nyquist zone.
-*/
-void
-calc_dxc_freq(u2_fxpt_freq_t target_freq, u2_fxpt_freq_t baseband_freq,
-	      u2_fxpt_freq_t *dxc_freq, bool *inverted)
-{
-  u2_fxpt_freq_t fs = U2_DOUBLE_TO_FXPT_FREQ(100e6);	// converter sample rate
-  u2_fxpt_freq_t delta = target_freq - baseband_freq;
-
-#if 0
-  printf("calc_dxc_freq\n");
-  printf("  fs       = "); print_fxpt_freq(fs); newline();
-  printf("  target   = "); print_fxpt_freq(target_freq); newline();
-  printf("  baseband = "); print_fxpt_freq(baseband_freq); newline();
-  printf("  delta    = "); print_fxpt_freq(delta); newline();
-#endif  
-
-  if (delta >= 0){
-    while (delta > fs)
-      delta -= fs;
-    if (delta <= fs/2){		// non-inverted region
-      *dxc_freq = -delta;
-      *inverted = false;
-    }
-    else {			// inverted region
-      *dxc_freq = delta - fs;
-      *inverted = true;
-    }
-  }
-  else {
-    while (delta < -fs)
-      delta += fs;
-    if (delta >= -fs/2){	// non-inverted region
-      *dxc_freq = -delta;
-      *inverted = false;
-    }
-    else {			// inverted region
-      *dxc_freq = delta + fs;
-      *inverted = true;
-    }
-  }
-}
-
-bool
-db_set_lo_offset(struct db_base *db, u2_fxpt_freq_t offset)
-{
-  //db->current_lo_offset = offset;
-  return true;
-}
-
-bool
-db_tune(struct db_base *db, u2_fxpt_freq_t target_freq, struct tune_result *result)
-{
-  /*memset(result, 0, sizeof(*result));
-  bool inverted = false;
-  u2_fxpt_freq_t dxc_freq;
-  u2_fxpt_freq_t actual_dxc_freq;
-
-  // Ask the d'board to tune as closely as it can to target_freq+lo_offset
-  bool ok = db->set_freq(db, target_freq+db->current_lo_offset, &result->baseband_freq);
-
-  // Calculate the DDC setting that will downconvert the baseband from the
-  // daughterboard to our target frequency.
-  calc_dxc_freq(target_freq, result->baseband_freq, &dxc_freq, &inverted);
-
-  // If the spectrum is inverted, and the daughterboard doesn't do
-  // quadrature downconversion, we can fix the inversion by flipping the
-  // sign of the dxc_freq...  (This only happens using the basic_rx board)
-  
-  if (db->spectrum_inverted)
-    inverted = !inverted;
-
-  if (inverted && !db->is_quadrature){
-    dxc_freq = -dxc_freq;
-    inverted = !inverted;
-  }
-
-  if (db->is_tx){
-    dxc_freq = -dxc_freq;	// down conversion versus up conversion
-    ok &= db_set_duc_freq(dxc_freq, &actual_dxc_freq);
-  }
-  else {
-    ok &= db_set_ddc_freq(dxc_freq, &actual_dxc_freq);
-  }
-
-  result->dxc_freq = dxc_freq;
-  result->residual_freq = dxc_freq - actual_dxc_freq;
-  result->inverted = inverted;
-  return ok;*/return false;
-}
-
-static int32_t
-compute_freq_control_word(u2_fxpt_freq_t target_freq, u2_fxpt_freq_t *actual_freq)
-{
-  // If we were using floating point, we'd calculate
-  //   master = 100e6;
-  //   v = (int) rint(target_freq / master_freq) * pow(2.0, 32.0);
-
-  //printf("compute_freq_control_word\n");
-  //printf("  target_freq = "); print_fxpt_freq(target_freq); newline();
-
-  int32_t master_freq = 100000000;	// 100M
-
-  int32_t v = ((target_freq << 12)) / master_freq;
-  //printf("  fcw = %d\n", v);
-
-  *actual_freq = (v * (int64_t) master_freq) >> 12;
-
-  //printf("  actual = "); print_fxpt_freq(*actual_freq); newline();
-
-  return v;
-}
-
-
-bool
-db_set_ddc_freq(u2_fxpt_freq_t dxc_freq, u2_fxpt_freq_t *actual_dxc_freq)
-{
-  int32_t v = compute_freq_control_word(dxc_freq, actual_dxc_freq);
-  dsp_rx_regs->freq = v;
-  return true;
-}
-
-bool
-db_set_duc_freq(u2_fxpt_freq_t dxc_freq, u2_fxpt_freq_t *actual_dxc_freq)
-{
-  int32_t v = compute_freq_control_word(dxc_freq, actual_dxc_freq);
-  dsp_tx_regs->freq = v;
-  return true;
-}
-
-bool
-db_set_gain(struct db_base *db, u2_fxpt_gain_t gain)
-{
-  return false;//db->set_gain(db, gain);
-}
diff --git a/firmware/microblaze/lib/u2_init.c b/firmware/microblaze/lib/u2_init.c
index c56468c08..bd3302d95 100644
--- a/firmware/microblaze/lib/u2_init.c
+++ b/firmware/microblaze/lib/u2_init.c
@@ -86,7 +86,6 @@ u2_init(void)
   bp_init();	// buffer pool
   lsadc_init();	    // low-speed ADCs
   lsdac_init();	    // low-speed DACs
-  db_init();	    // daughterboard init
   
   hal_enable_ints();