added initial support for CC1101 via SPI (#66)

platformio.ini

@@ -16,6 +16,11 @@ default_envs =
 	m5stack-core2
 	m5stack-core16mb
 	m5stack-core4mb
+;uncomment to not use global dirs to avoid possible conflicts
+;platforms_dir = .pio/platforms
+;packages_dir = .pio/packages
+;build_cache_dir = .pio/buildcache
+;cache_dir = .pio/cache
 
 [common]
 build_flags = 
@@ -42,6 +47,7 @@ lib_deps =
 	ESP8266SAM
 	TinyGPSPlus
 	tinyu-zhao/FFT@^0.0.1
+	lsatan/SmartRC-CC1101-Driver-Lib@^2.5.7
 
 [env:m5stack-cplus2]
 platform = espressif32
@@ -632,6 +638,11 @@ board = esp32-s3-devkitc-1
 framework = arduino
 ;board_build.partitions = custom_16Mb.csv
 ;board_upload.flash_size = 16MB
+;monitor_speed = 115200
+;board_build.partitions = custom_16Mb.csv
+;board_build.f_flash = 40000000L
+;board_upload.flash_size = 16MB
+;board_upload.maximum_size = 16777216
 build_flags =
 	${common.build_flags}
 	-DESP32S3DEVKITC1
@@ -643,16 +654,18 @@ build_flags =
 	-DLED_ON=HIGH
 	-DLED_OFF=LOW
 	; sd card pins
+	; suggested https://github.com/espressif/esp-idf/tree/master/examples/storage/sd_card/sdmmc
 	-DSDCARD_CS=-1
 	-DSDCARD_SCK=-1
 	-DSDCARD_MISO=-1
 	-DSDCARD_MOSI=-1
-	; grove pins (SDA=default TX pin, SCL=default RX pin)
-	-DGROVE_SDA=35
-	-DGROVE_SCL=36
+	; grove pins (SDA=default TX pin, SCL=default RX pin, for both IR and RF)
+	; defaults from https://github.com/espressif/arduino-esp32/blob/master/variants/esp32s3/pins_arduino.h
+	-DGROVE_SDA=8  ; default RF TX pin
+	-DGROVE_SCL=9  ; default IR/RF RX pin
 	; tft vars
 	-DROTATION=1
-	-DBACKLIGHT=15  ; tft backlight pin
+	-DBACKLIGHT=-1  ; tft backlight pin
 	-DWIDTH=240
 	-DHEIGHT=135
 	-DMINBRIGHT=160  ; unused?
@@ -665,17 +678,25 @@ build_flags =
 	-DFM=2
 	-DFG=3
 	; ui control buttons
-	-DSEL_BTN=1
-	-DUP_BTN=2  ; also work as ESC
-	-DDW_BTN=3  ; also work as NEXT
-	-DTOUCH_THRESHOLD=20
+	;-DSEL_BTN=1
+	;-DUP_BTN=2  ; also work as ESC
+	;-DDW_BTN=3  ; also work as NEXT
 	-DBTN_ALIAS='"OK"'
 	;Microphone
 	;-DMIC_SPM1423=1 ; uncomment to enable Applicable for SPM1423 device
-    -DPIN_CLK=43
-    -DI2S_SCLK_PIN=43
-    -DI2S_DATA_PIN=46
-    -DPIN_DATA=46
+    ;-DPIN_CLK=-1
+    ;-DI2S_SCLK_PIN=-1
+    ;-DI2S_DATA_PIN=-1
+    ;-DPIN_DATA=-1
+    ;CC1101 SPI connection pins, can use any on this board https://esp32.com/viewtopic.php?t=37729
+    ; best connection pins for higher speed https://docs.espressif.com/projects/esp-idf/en/latest/esp32s3/api-reference/peripherals/spi_master.html#gpio-matrix-and-io-mux
+    -DUSE_CC1101_VIA_SPI
+	-DCC1101_GDO0_PIN=9  ; RFSend (SPI2_IOMUX_PIN_NUM_HD / FSPIHD)
+	-DCC1101_SS_PIN=10
+	-DCC1101_MOSI_PIN=11
+    -DCC1101_SCK_PIN=12
+	-DCC1101_MISO_PIN=13
+	-DCC1101_GDO2_PIN=14  ; RFRecv (SPI2_IOMUX_PIN_NUM_CS  / FSPIWP)
 lib_deps =
 	${common.lib_deps}
 

src/modules/rf/rf.cpp

@@ -7,6 +7,7 @@
 #include "core/mykeyboard.h"
 #include "core/display.h"
 #include "core/sd_functions.h"
+#include "core/settings.h"
 #include "rf.h"
 
 // Cria um objeto PCA9554 com o endereço I2C do PCA9554PW
@@ -186,14 +187,22 @@ void rf_jammerIntermittent() { //@IncursioHack - https://github.com/IncursioHack
     digitalWrite(RfTx, LOW); // Deactivate pin
 }
 
-
+#ifdef USE_CC1101_VIA_SPI
+    #include <ELECHOUSE_CC1101_SRC_DRV.h>
+#endif
+
 void RCSwitch_send(uint64_t data, unsigned int bits, int pulse, int protocol, int repeat)
 {
     RCSwitch mySwitch = RCSwitch();
-    mySwitch.enableTransmit(RfTx);
-    mySwitch.setProtocol(protocol);
+
+    #ifdef USE_CC1101_VIA_SPI
+        mySwitch.enableTransmit(CC1101_GDO0_PIN);
+    #else
+        mySwitch.enableTransmit(RfTx);
+    #endif
+
+    mySwitch.setProtocol(protocol);  // override
     if (pulse) { mySwitch.setPulseLength(pulse); }
-    mySwitch.setPulseLength(pulse);
     mySwitch.setRepeatTransmit(repeat);
     mySwitch.send(data, bits);
 
@@ -523,56 +532,112 @@ void sendRfCommand(struct RfCodes rfcode) {
       String preset = rfcode.preset;
       String data = rfcode.data;
       uint64_t key = rfcode.key;
+      byte modulation = 2;  // possible values for CC1101: 0 = 2-FSK, 1 =GFSK, 2=ASK, 3 = 4-FSK, 4 = MSK
+      float deviation = 0;
+      float rxBW = 0;  // Receive bandwidth
 /*
     Serial.println("sendRawRfCommand");
     Serial.println(data);
     Serial.println(frequency);
     Serial.println(preset);
     Serial.println(protocol);
   */
-    if(frequency != 433920000) {
-        Serial.print("unsupported frequency: ");
-        Serial.println(frequency);
-        return;
-    }
-    // MEMO: frequency is fixed with some transmitters https://github.com/sui77/rc-switch/issues/256
-    // TODO: add frequency switching via CC1101  https://github.com/LSatan/SmartRC-CC1101-Driver-Lib
 
     // Radio preset name (configures modulation, bandwidth, filters, etc.).
+    /*  supported flipper presets:
+        FuriHalSubGhzPresetIDLE, // < default configuration
+        FuriHalSubGhzPresetOok270Async, ///< OOK, bandwidth 270kHz, asynchronous
+        FuriHalSubGhzPresetOok650Async, ///< OOK, bandwidth 650kHz, asynchronous
+        FuriHalSubGhzPreset2FSKDev238Async, //< FM, deviation 2.380371 kHz, asynchronous
+        FuriHalSubGhzPreset2FSKDev476Async, //< FM, deviation 47.60742 kHz, asynchronous
+        FuriHalSubGhzPresetMSK99_97KbAsync, //< MSK, deviation 47.60742 kHz, 99.97Kb/s, asynchronous
+        FuriHalSubGhzPresetGFSK9_99KbAsync, //< GFSK, deviation 19.042969 kHz, 9.996Kb/s, asynchronous
+        FuriHalSubGhzPresetCustom, //Custom Preset
+    */
     struct Protocol rcswitch_protocol;
     int rcswitch_protocol_no = 1;
     if(preset == "FuriHalSubGhzPresetOok270Async") {
         rcswitch_protocol_no = 1;
         //  pulseLength , syncFactor , zero , one, invertedSignal
         rcswitch_protocol = { 350, {  1, 31 }, {  1,  3 }, {  3,  1 }, false };
+        modulation = 2;
+        rxBW = 270;
     }
     else if(preset == "FuriHalSubGhzPresetOok650Async") {
         rcswitch_protocol_no = 2;
         rcswitch_protocol = { 650, {  1, 10 }, {  1,  2 }, {  2,  1 }, false };
-    } else if(preset == "1" || preset == "2" || preset == "3" || preset == "4" || preset == "5" || preset == "6" || preset == "7" || preset == "8" || preset == "9" || preset == "10" || preset == "11" || preset == "12"|| preset == "13" || preset == "14") {
+        modulation = 2;
+        rxBW = 650;
+    }
+    else if(preset == "FuriHalSubGhzPreset2FSKDev238Async") {
+        modulation = 0;
+        deviation = 2.380371;
+    }
+    else if(preset == "FuriHalSubGhzPreset2FSKDev476Async") {
+        modulation = 0;
+        deviation = 47.60742;
+    }
+    else if(preset == "FuriHalSubGhzPresetMSK99_97KbAsync") {
+        modulation = 4;
+        deviation = 47.60742;
+    }
+    else if(preset == "FuriHalSubGhzPresetGFSK9_99KbAsync") {
+        modulation = 1;
+        deviation = 19.042969;
+    }
+    else if(preset == "1" || preset == "2" || preset == "3" || preset == "4" || preset == "5" || preset == "6" || preset == "7" || preset == "8" || preset == "9" || preset == "10" || preset == "11" || preset == "12"|| preset == "13" || preset == "14") {
         rcswitch_protocol_no = preset.toInt();
     }
     else {
         Serial.print("unsupported preset: ");
         Serial.println(preset);
         return;
     }
-    /*  supported flipper presets:
-        FuriHalSubGhzPresetIDLE, // < default configuration
-        FuriHalSubGhzPresetOok270Async, ///< OOK, bandwidth 270kHz, asynchronous
-        FuriHalSubGhzPresetOok650Async, ///< OOK, bandwidth 650kHz, asynchronous
-        FuriHalSubGhzPreset2FSKDev238Async, //< FM, deviation 2.380371 kHz, asynchronous
-        FuriHalSubGhzPreset2FSKDev476Async, //< FM, deviation 47.60742 kHz, asynchronous
-        FuriHalSubGhzPresetMSK99_97KbAsync, //< MSK, deviation 47.60742 kHz, 99.97Kb/s, asynchronous
-        FuriHalSubGhzPresetGFSK9_99KbAsync, //< GFSK, deviation 19.042969 kHz, 9.996Kb/s, asynchronous
-        FuriHalSubGhzPresetCustom, //Custom Preset
-    */
+
+  #ifndef USE_CC1101_VIA_SPI
+    // check supported frequency and modulation by the current module
+    if(frequency != 433920000) {
+        Serial.print("unsupported frequency: ");
+        Serial.println(frequency);
+        return;
+    }
+    // MEMO: frequency is fixed with some transmitters https://github.com/sui77/rc-switch/issues/256
+    if(modulation != 2) {
+        Serial.print("unsupported modulation: ");
+        Serial.println(modulation);
+        return;
+    }
 
     // init output pin
-    digitalWrite(RfTx, LED_OFF);
-    if(RfTx==0) RfTx=GROVE_SDA; // quick fix
+    gsetRfTxPin(false);
+    //if(RfTx==0) RfTx=GROVE_SDA; // quick fix
     pinMode(RfTx, OUTPUT);
-
+    digitalWrite(RfTx, LED_OFF);
+
+  #else  // USE_CC1101_VIA_SPI
+      // init cc1101 module
+      // derived from https://github.com/LSatan/SmartRC-CC1101-Driver-Lib/blob/master/examples/Rc-Switch%20examples%20cc1101/SendDemo_cc1101/SendDemo_cc1101.ino
+
+      ELECHOUSE_cc1101.setSpiPin(CC1101_SCK_PIN, CC1101_MISO_PIN, CC1101_MOSI_PIN, CC1101_SS_PIN);
+      ELECHOUSE_cc1101.setGDO(CC1101_GDO0_PIN, CC1101_GDO2_PIN); 	//Set Gdo0 (tx) and Gdo2 (rx) for serial transmission function.
+
+      if (ELECHOUSE_cc1101.getCC1101()){       // Check the CC1101 Spi connection.
+        Serial.println("cc1101 Connection OK");
+      }else{
+        Serial.println("cc1101 Connection Error");
+        return;
+      }
+
+      ELECHOUSE_cc1101.Init();            // must be set to initialize the cc1101!
+      ELECHOUSE_cc1101.setMHZ(frequency / 1000000.0); // e.g. 433.92.  Here you can set your basic frequency. The lib calculates the frequency automatically (default = 433.92).The cc1101 can: 300-348 MHZ, 387-464MHZ and 779-928MHZ. Read More info from datasheet.
+      //ELECHOUSE_cc1101.setMHZ(433.92); // e.g. 433.92.  Here you can set your basic frequency. The lib calculates the frequency automatically (default = 433.92).The cc1101 can: 300-348 MHZ, 387-464MHZ and 779-928MHZ. Read More info from datasheet.
+      ELECHOUSE_cc1101.setModulation(modulation);
+      if(deviation) ELECHOUSE_cc1101.setDeviation(deviation);
+      if(rxBW) ELECHOUSE_cc1101.setRxBW(rxBW);		// Set the Receive Bandwidth in kHz. Value from 58.03 to 812.50. Default is 812.50 kHz.
+      ELECHOUSE_cc1101.setPA(12);       // set TxPower. The following settings are possible depending on the frequency band.  (-30  -20  -15  -10  -6    0    5    7    10   11   12)   Default is max!
+      ELECHOUSE_cc1101.SetTx();   
+  #endif
+
     if(protocol == "RAW") {
         // count the number of elements of RAW_Data
         int buff_size=0;