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path: root/usrp2/firmware/lib/db_xcvr2450.c
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Diffstat (limited to 'usrp2/firmware/lib/db_xcvr2450.c')
-rw-r--r--usrp2/firmware/lib/db_xcvr2450.c127
1 files changed, 88 insertions, 39 deletions
diff --git a/usrp2/firmware/lib/db_xcvr2450.c b/usrp2/firmware/lib/db_xcvr2450.c
index 1db817dc5..7b5b6e228 100644
--- a/usrp2/firmware/lib/db_xcvr2450.c
+++ b/usrp2/firmware/lib/db_xcvr2450.c
@@ -55,8 +55,6 @@ bool xcvr2450_set_gain_tx(struct db_base *db, u2_fxpt_gain_t gain);
bool xcvr2450_set_tx_enable(struct db_base *db, bool on);
struct db_xcvr2450_common {
- //int d_spi_format, d_spi_enable;
-
int d_mimo, d_int_div, d_frac_div, d_highband, d_five_gig;
int d_cp_current, d_ref_div, d_rssi_hbw;
int d_txlpf_bw, d_rxlpf_bw, d_rxlpf_fine, d_rxvga_ser;
@@ -64,15 +62,9 @@ struct db_xcvr2450_common {
int d_rx_hp_pin, d_rx_hpf, d_rx_ant;
int d_tx_ant, d_txvga_ser, d_tx_driver_lin;
int d_tx_vga_lin, d_tx_upconv_lin, d_tx_bb_gain;
- int d_pabias_delay, d_pabias; //rx_rf_gain, rx_bb_gain;//, d_txgain;
- //int d_rx_rf_gain, d_rx_bb_gain;
-
- int d_reg_standby;//, d_reg_int_divider, d_reg_frac_divider, d_reg_bandselpll;
- int d_reg_cal, dsend_reg, d_reg_lpf, d_reg_rxrssi_ctrl, d_reg_txlin_gain;
- int d_reg_pabias;//, d_reg_rxgain;//, d_reg_txgain;
-
+ int d_pabias_delay, d_pabias;
+ int d_rx_rf_gain, d_rx_bb_gain, d_txgain;
int d_ad9515_div;
-
int spi_mask;
};
@@ -157,14 +149,14 @@ send_reg(struct db_xcvr2450_dummy *db, int v){
}
void
-set_reg_txgain(struct db_xcvr2450_dummy *db, int txgain){
- int reg_txgain = (txgain<<4) | 12;
+set_reg_txgain(struct db_xcvr2450_dummy *db){
+ int reg_txgain = (db->common.d_txgain<<4) | 12;
send_reg(db, reg_txgain);
}
void
-set_reg_rxgain(struct db_xcvr2450_dummy *db, int rx_bb_gain, int rx_rf_gain){
- int reg_rxgain = ( (rx_rf_gain<<9) | (rx_bb_gain<<4) | 11);
+set_reg_rxgain(struct db_xcvr2450_dummy *db){
+ int reg_rxgain = ( (db->common.d_rx_rf_gain<<9) | (db->common.d_rx_bb_gain<<4) | 11);
send_reg(db, reg_rxgain);
}
@@ -194,6 +186,65 @@ set_reg_bandselpll(struct db_xcvr2450_dummy *db){
send_reg(db, reg_bandselpll);
}
+void
+set_reg_standby(struct db_xcvr2450_dummy *db){
+ int reg_standby = ((db->common.d_mimo<<17) |
+ (1<<16) |
+ (1<<6) |
+ (1<<5) |
+ (1<<4) | 2);
+ send_reg(db, reg_standby);
+}
+
+void
+set_reg_cal(struct db_xcvr2450_dummy *db){
+ // FIXME do calibration
+ int reg_cal = (1<<14)|6;
+ send_reg(db, reg_cal);
+}
+
+void
+set_reg_lpf(struct db_xcvr2450_dummy *db){
+ int reg_lpf = (
+ (db->common.d_rssi_hbw<<15) |
+ (db->common.d_txlpf_bw<<10) |
+ (db->common.d_rxlpf_bw<<9) |
+ (db->common.d_rxlpf_fine<<4) | 7);
+ send_reg(db, reg_lpf);
+}
+
+void
+set_reg_rxrssi_ctrl(struct db_xcvr2450_dummy *db){
+ int reg_rxrssi_ctrl = (
+ (db->common.d_rxvga_ser<<16) |
+ (db->common.d_rssi_range<<15) |
+ (db->common.d_rssi_mode<<14) |
+ (db->common.d_rssi_mux<<12) |
+ (1<<9) |
+ (db->common.d_rx_hpf<<6) |
+ (1<<4) | 8);
+ send_reg(db, reg_rxrssi_ctrl);
+}
+
+void
+set_reg_txlin_gain(struct db_xcvr2450_dummy *db){
+ int reg_txlin_gain = (
+ (db->common.d_txvga_ser<<14) |
+ (db->common.d_tx_driver_lin<<12) |
+ (db->common.d_tx_vga_lin<<10) |
+ (db->common.d_tx_upconv_lin<<6) |
+ (db->common.d_tx_bb_gain<<4) | 9);
+ send_reg(db, reg_txlin_gain);
+}
+
+void
+set_reg_pabias(struct db_xcvr2450_dummy *db){
+ int reg_pabias = (
+ (db->common.d_pabias_delay<<10) |
+ (db->common.d_pabias<<4) | 10);
+ send_reg(db, reg_pabias);
+}
+
/**************************************************
* GPIO
**************************************************/
@@ -289,10 +340,10 @@ xcvr2450_init(struct db_base *dbb){
db->common.d_tx_bb_gain = 3; // 0=maxgain-5dB, 1=max-3dB, 2=max-1.5dB, 3=max
db->common.d_pabias_delay = 15; // 0 = 0, 15 = 7uS
db->common.d_pabias = 0; // 0 = 0 uA, 63 = 315uA
- //db->common.d_rx_rf_gain = 0; // 0 = 0dB, 1 = 0dB, 2 = 15dB, 3 = 30dB
- //db->common.d_rx_bb_gain = 16; // 0 = min, 31 = max (0 - 62 dB)
+ db->common.d_rx_rf_gain = 0; // 0 = 0dB, 1 = 0dB, 2 = 15dB, 3 = 30dB
+ db->common.d_rx_bb_gain = 16; // 0 = min, 31 = max (0 - 62 dB)
- //db->common.d_txgain = 63; // 0 = min, 63 = max
+ db->common.d_txgain = 63; // 0 = min, 63 = max
/*
// Initialize GPIO and ATR
@@ -307,21 +358,20 @@ xcvr2450_init(struct db_base *dbb){
rx_set_atr_rxval(RX_SAFE_IO);
rx_set_atr_txval(RX_SAFE_IO);
rx_set_atr_mask(RX_OE_MASK);
-
+ */
// Initialize chipset
// TODO: perform reset sequence to ensure power up defaults
- set_reg_standby();
- set_reg_bandselpll();
- set_reg_cal();
- set_reg_lpf();
- set_reg_rxrssi_ctrl();
- set_reg_txlin_gain();
- set_reg_pabias();
- set_reg_rxgain();
- set_reg_txgain();
+ set_reg_standby(db);
+ set_reg_bandselpll(db);
+ set_reg_cal(db);
+ set_reg_lpf(db);
+ set_reg_rxrssi_ctrl(db);
+ set_reg_txlin_gain(db);
+ set_reg_pabias(db);
+ set_reg_rxgain(db);
+ set_reg_txgain(db);
//FIXME: set_freq(2.45e9);
- */
-
+
db->base.set_gain(dbb, (db->base.gain_max - db->base.gain_min)/2); //set mid-range gain
return true;
}
@@ -437,22 +487,21 @@ xcvr2450_set_gain_rx(struct db_base *dbb, u2_fxpt_gain_t gain){
if(!(gain >= db->base.gain_min && gain <= db->base.gain_max)) {
return false;
}
- int rx_rf_gain = 0, rx_bb_gain = 0;
// Split the gain between RF and baseband
// This is experimental, not prescribed
if(gain < U2_DOUBLE_TO_FXPT_GAIN(30.0)) {
- rx_rf_gain = 0; // 0 dB RF gain
- rx_bb_gain = gain/U2_DOUBLE_TO_FXPT_GAIN(2.0);
+ db->common.d_rx_rf_gain = 0; // 0 dB RF gain
+ db->common.d_rx_bb_gain = gain/U2_DOUBLE_TO_FXPT_GAIN(2.0);
}
else if(gain >= U2_DOUBLE_TO_FXPT_GAIN(30.0) && gain < U2_DOUBLE_TO_FXPT_GAIN(61.0)) {
- rx_rf_gain = 2; // 15 dB RF gain
- rx_bb_gain = (gain-U2_DOUBLE_TO_FXPT_GAIN(15.0))/U2_DOUBLE_TO_FXPT_GAIN(2.0);
+ db->common.d_rx_rf_gain = 2; // 15 dB RF gain
+ db->common.d_rx_bb_gain = (gain-U2_DOUBLE_TO_FXPT_GAIN(15.0))/U2_DOUBLE_TO_FXPT_GAIN(2.0);
}
else if(gain >= U2_DOUBLE_TO_FXPT_GAIN(61.0)) {
- rx_rf_gain = 3; // 30.5 dB RF gain
- rx_bb_gain = (gain-U2_DOUBLE_TO_FXPT_GAIN(30.5))/U2_DOUBLE_TO_FXPT_GAIN(2.0);
+ db->common.d_rx_rf_gain = 3; // 30.5 dB RF gain
+ db->common.d_rx_bb_gain = (gain-U2_DOUBLE_TO_FXPT_GAIN(30.5))/U2_DOUBLE_TO_FXPT_GAIN(2.0);
}
- set_reg_rxgain(db, rx_bb_gain, rx_rf_gain);
+ set_reg_rxgain(db);
return true;
}
@@ -467,8 +516,8 @@ xcvr2450_set_gain_tx(struct db_base *dbb, u2_fxpt_gain_t gain){
return false;
}
//scale for register and set
- int txgain = gain/db->base.gain_step_size;
- set_reg_txgain(db, txgain);
+ db->common.d_txgain = gain/db->base.gain_step_size;
+ set_reg_txgain(db);
return true;
}
generated by cgit (git 2.34.1) at 2024-12-21 09:43:46 +0000