-
Notifications
You must be signed in to change notification settings - Fork 224
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
initial build infra for RadioHead driver
- Loading branch information
Showing
5 changed files
with
200 additions
and
19 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
171 changes: 171 additions & 0 deletions
171
software/firmware/source/SoftRF/src/driver/radio/radiohead.cpp
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,171 @@ | ||
| /* | ||
| * radiohead.cpp | ||
| * Copyright (C) 2025 Linar Yusupov | ||
| * | ||
| * This program is free software: you can redistribute it and/or modify | ||
| * it under the terms of the GNU General Public License as published by | ||
| * the Free Software Foundation, either version 3 of the License, or | ||
| * (at your option) any later version. | ||
| * | ||
| * This program is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| * GNU General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU General Public License | ||
| * along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
| */ | ||
|
|
||
| #include "../RF.h" | ||
|
|
||
| #if defined(USE_RADIOHEAD) && !defined(USE_RADIOLIB) | ||
|
|
||
| #include "../EEPROM.h" | ||
| #include "../Battery.h" | ||
|
|
||
| #include <manchester.h> | ||
|
|
||
| #ifndef RadioSPI | ||
| #define RadioSPI SPI | ||
| #endif | ||
|
|
||
| #if !defined(USE_BASICMAC) | ||
| #include <SPI.h> | ||
|
|
||
| static const SPISettings probe_settings(1000000UL, MSBFIRST, SPI_MODE0); | ||
|
|
||
| static void hal_spi_select (int on) { | ||
|
|
||
| #if defined(SPI_HAS_TRANSACTION) | ||
| if (on) | ||
| RadioSPI.beginTransaction(probe_settings); | ||
| else | ||
| RadioSPI.endTransaction(); | ||
| #endif | ||
|
|
||
| //Serial.println(val?">>":"<<"); | ||
| digitalWrite(lmic_pins.nss, !on ? HIGH : LOW); | ||
| } | ||
|
|
||
| // Datasheet defins typical times until busy goes low. Most are < 200us, | ||
| // except when waking up from sleep, which typically takes 3500us. Since | ||
| // we cannot know here if we are in sleep, we'll have to assume we are. | ||
| // Since 3500 is typical, not maximum, wait a bit more than that. | ||
| static unsigned long MAX_BUSY_TIME = 5000; | ||
|
|
||
| static void hal_pin_busy_wait (void) { | ||
| if (lmic_pins.busy == LMIC_UNUSED_PIN) { | ||
| // TODO: We could probably keep some state so we know the chip | ||
| // is in sleep, since otherwise the delay can be much shorter. | ||
| // Also, all delays after commands (rather than waking up from | ||
| // sleep) are measured from the *end* of the previous SPI | ||
| // transaction, so we could wait shorter if we remember when | ||
| // that was. | ||
| delayMicroseconds(MAX_BUSY_TIME); | ||
| } else { | ||
| unsigned long start = micros(); | ||
|
|
||
| while((micros() - start) < MAX_BUSY_TIME && digitalRead(lmic_pins.busy)) /* wait */; | ||
| } | ||
| } | ||
| #endif /* USE_BASICMAC */ | ||
|
|
||
| #if !defined(EXCLUDE_SI443X) | ||
|
|
||
| #include <RH_RF22.h> | ||
|
|
||
| #define RADIOHEAD_SI443X_DEVICE_VERSION 0x06 // 4 0 chip version register | ||
|
|
||
| static bool si4432_probe(void); | ||
| static void si4432_setup(void); | ||
| static void si4432_channel(int8_t); | ||
| static bool si4432_receive(void); | ||
| static bool si4432_transmit(void); | ||
| static void si4432_shutdown(void); | ||
|
|
||
| const rfchip_ops_t si4432_ops = { | ||
| RF_IC_SI4432, | ||
| "SI4432", | ||
| si4432_probe, | ||
| si4432_setup, | ||
| si4432_channel, | ||
| si4432_receive, | ||
| si4432_transmit, | ||
| si4432_shutdown | ||
| }; | ||
|
|
||
| RH_RF22 *radio_silabs; | ||
|
|
||
| static u1_t si4432_readReg (u1_t addr) { | ||
| #if defined(USE_BASICMAC) | ||
| hal_spi_select(1); | ||
| #else | ||
| hal_pin_nss(0); | ||
| #endif | ||
| hal_spi(addr & 0x7F); | ||
| u1_t val = hal_spi(0x00); | ||
| #if defined(USE_BASICMAC) | ||
| hal_spi_select(0); | ||
| #else | ||
| hal_pin_nss(1); | ||
| #endif | ||
| return val; | ||
| } | ||
|
|
||
| static bool si4432_probe() | ||
| { | ||
| SoC->SPI_begin(); | ||
|
|
||
| lmic_hal_init (nullptr); | ||
|
|
||
| hal_pin_rst(1); // drive SDN pin high | ||
| delay(1); | ||
|
|
||
| hal_pin_rst(0); // drive SDN pin low | ||
| delay(100); | ||
|
|
||
| u1_t v = si4432_readReg(RH_RF22_REG_01_VERSION_CODE); | ||
|
|
||
| #if 1 | ||
| Serial.print("si4432 version = "); Serial.println(v, HEX); | ||
| #endif | ||
|
|
||
| pinMode(lmic_pins.nss, INPUT); | ||
| RadioSPI.end(); | ||
|
|
||
| hal_pin_rst(2); // configure SDN pin floating! | ||
|
|
||
| if (v == RADIOHEAD_SI443X_DEVICE_VERSION) { | ||
| return true; | ||
| } else { | ||
| return false; | ||
| } | ||
| } | ||
|
|
||
| static void si4432_channel(int8_t channel) | ||
| { | ||
| /* TBD */ | ||
| } | ||
|
|
||
| static void si4432_setup() | ||
| { | ||
| /* TBD */ | ||
| } | ||
|
|
||
| static bool si4432_receive() | ||
| { | ||
| return false; /* TBD */ | ||
| } | ||
|
|
||
| static bool si4432_transmit() | ||
| { | ||
| return false; /* TBD */ | ||
| } | ||
|
|
||
| static void si4432_shutdown() | ||
| { | ||
| /* TBD */ | ||
| } | ||
| #endif /* EXCLUDE_SI443X */ | ||
|
|
||
| #endif /* USE_RADIOHEAD */ |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters