[rf] Adding rffe_set_gain() and rffe_get_gain() to get/set computed gain

rffe_compute_gain() is the new name for rffe_set_gain(). I needed to change
this, to solve the name collision with the rffe_set_gain() function, which
actually sets the absolute gain.

rffe_get_gain() will now read the absolute gain which has been computed by
rffe_compute_gain() or set by rffe_set_gain().

2 files changed, 12 insertions, 4 deletions

diff --git a/src/target/firmware/include/rf/trf6151.h b/src/target/firmware/include/rf/trf6151.h
index 73ff8c09..f0891b6b 100644
--- a/src/target/firmware/include/rf/trf6151.h
+++ b/src/target/firmware/include/rf/trf6151.h
@@ -9,10 +9,16 @@ void trf6151_init(uint8_t tsp_uid, uint16_t tsp_reset_id);
 /* switch power off or on */
 void trf6151_power(int on);
 
-/* set the VGA and RF gain */
-int trf6151_set_gain(uint8_t dbm, int high);
-
 /* obtain the current total gain of the TRF6151 */
+uint8_t trf6151_get_gain_reg(void);
+
+/* put current set (or computed) gain to register */
+int trf6151_set_gain_reg(uint8_t dbm, int high);
+
+/* set the global gain to use */
+int trf6151_set_gain(uint8_t dbm);
+
+/* obtain the global gain set */
 uint8_t trf6151_get_gain(void);
 
 /* Request the PLL to be tuned to the given frequency */
diff --git a/src/target/firmware/include/rffe.h b/src/target/firmware/include/rffe.h
index c28c696f..63a3a4b5 100644
--- a/src/target/firmware/include/rffe.h
+++ b/src/target/firmware/include/rffe.h
@@ -28,6 +28,8 @@ uint32_t rffe_get_tx_ports(void);
 /* get current gain of RF frontend (anything between antenna and baseband in dBm */
 uint8_t rffe_get_gain(void);
 
-void rffe_set_gain(int16_t exp_inp, int16_t target_bb);
+void rffe_set_gain(uint8_t dbm);
+
+void rffe_compute_gain(int16_t exp_inp, int16_t target_bb);
 
 #endif