greatscottgadgets · mossmann · Apr 6, 2026 · Mar 20, 2026 · Mar 20, 2026 · mossmann
diff --git a/firmware/common/adc.h b/firmware/common/adc.h
@@ -19,12 +19,9 @@
  * Boston, MA 02110-1301, USA.
  */
 
-#ifndef __ADC_H__
-#define __ADC_H__
+#pragma once
 
 #include <stdint.h>
 
 uint16_t adc_read(uint8_t pin);
 void adc_off(void);
-
-#endif // __ADC_H__
diff --git a/firmware/common/bitband.h b/firmware/common/bitband.h
@@ -20,8 +20,7 @@
  * Boston, MA 02110-1301, USA.
  */
 
-#ifndef __BITBAND_H__
-#define __BITBAND_H__
+#pragma once
 
 #include <stdint.h>
 
@@ -37,5 +36,3 @@ void peripheral_bitband_clear(
 uint32_t peripheral_bitband_get(
 	volatile void* const peripheral_address,
 	const uint_fast8_t bit_number);
-
-#endif //__BITBAND_H__
diff --git a/firmware/common/clkin.h b/firmware/common/clkin.h
@@ -19,12 +19,9 @@
  * Boston, MA 02110-1301, USA.
  */
 
-#ifndef __CLKIN_H__
-#define __CLKIN_H__
+#pragma once
 
 #include <stdint.h>
 
 void clkin_detect_init(void);
 uint32_t clkin_frequency(void);
-
-#endif //__CLKIN_H__
diff --git a/firmware/common/cpld_jtag.h b/firmware/common/cpld_jtag.h
@@ -19,8 +19,7 @@
  * Boston, MA 02110-1301, USA.
  */
 
-#ifndef __CPLD_JTAG_H__
-#define __CPLD_JTAG_H__
+#pragma once
 
 #include <stdint.h>
 
@@ -59,5 +58,3 @@ int cpld_jtag_program(
 	unsigned char* const buffer,
 	refill_buffer_cb refill);
 unsigned char cpld_jtag_get_next_byte(void);
-
-#endif //__CPLD_JTAG_H__
diff --git a/firmware/common/cpld_xc2c.h b/firmware/common/cpld_xc2c.h
@@ -20,8 +20,7 @@
  * Boston, MA 02110-1301, USA.
  */
 
-#ifndef __CPLD_XC2C_H__
-#define __CPLD_XC2C_H__
+#pragma once
 
 #include <stdbool.h>
 #include <stdint.h>
@@ -69,5 +68,3 @@ bool cpld_xc2c64a_jtag_sram_verify(
 extern const cpld_xc2c64a_program_t cpld_hackrf_program_sram;
 extern const cpld_xc2c64a_verify_t cpld_hackrf_verify;
 extern const cpld_xc2c64a_row_addresses_t cpld_hackrf_row_addresses;
-
-#endif /*__CPLD_XC2C_H__*/
diff --git a/firmware/common/crc.h b/firmware/common/crc.h
@@ -20,8 +20,7 @@
  * Boston, MA 02110-1301, USA.
  */
 
-#ifndef __CRC_H__
-#define __CRC_H__
+#pragma once
 
 #include <stddef.h>
 #include <stdint.h>
@@ -35,5 +34,3 @@ typedef struct {
 void crc32_init(crc32_t* const crc);
 void crc32_update(crc32_t* const crc, const uint8_t* const data, const size_t byte_count);
 uint32_t crc32_digest(const crc32_t* const crc);
-
-#endif //__CRC_H__
diff --git a/firmware/common/da7219.h b/firmware/common/da7219.h
@@ -19,13 +19,10 @@
  * Boston, MA 02110-1301, USA.
  */
 
-#ifndef __DA7219_H
-#define __DA7219_H
+#pragma once
 
 #include <stdbool.h>
 
 #define DA7219_ADDRESS 0x1A
 
 bool da7219_detect(void);
-
-#endif /* __DA7219_H */
diff --git a/firmware/common/delay.h b/firmware/common/delay.h
@@ -19,8 +19,7 @@
  * Boston, MA 02110-1301, USA.
  */
 
-#ifndef __DELAY_H
-#define __DELAY_H
+#pragma once
 
 #ifdef __cplusplus
 extern "C" {
@@ -31,4 +30,6 @@ extern "C" {
 void delay(uint32_t duration);
 void delay_us_at_mhz(uint32_t us, uint32_t mhz);
 
-#endif /* __DELAY_H */
+#ifdef __cplusplus
+}
+#endif
diff --git a/firmware/common/fault_handler.h b/firmware/common/fault_handler.h
@@ -20,8 +20,7 @@
  * Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FAULT_HANDLER__
-#define __FAULT_HANDLER__
+#pragma once
 
 #include <stdint.h>
 
@@ -71,5 +70,3 @@ static armv7m_scb_t* const SCB = (armv7m_scb_t*) SCB_BASE;
 #define SCB_HFSR_DEBUGEVT (1 << 31)
 #define SCB_HFSR_FORCED   (1 << 30)
 #define SCB_HFSR_VECTTBL  (1 << 1)
-
-#endif //__FAULT_HANDLER__
diff --git a/firmware/common/firmware_info.h b/firmware/common/firmware_info.h
@@ -19,8 +19,7 @@
  * Boston, MA 02110-1301, USA.
  */
 
-#ifndef FIRMWARE_INFO_H
-#define FIRMWARE_INFO_H
+#pragma once
 
 #include <stdint.h>
 
@@ -33,5 +32,3 @@ struct firmware_info_t {
 } __attribute__((packed, aligned(1)));
 
 extern const struct firmware_info_t firmware_info;
-
-#endif
diff --git a/firmware/common/fixed_point.h b/firmware/common/fixed_point.h
@@ -19,8 +19,7 @@
  * Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FIXED_POINT_H__
-#define __FIXED_POINT_H__
+#pragma once
 
 #include <stdint.h>
 
@@ -32,5 +31,3 @@ typedef uint64_t fp_40_24_t;
 
 /* one in 40.24 fixed-point */
 #define FP_ONE_HZ (1 << 24)
-
-#endif /*__FIXED_POINT_H__*/
diff --git a/firmware/common/fpga.h b/firmware/common/fpga.h
@@ -19,8 +19,7 @@
  * Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FPGA_H
-#define __FPGA_H
+#pragma once
 
 #include <stdbool.h>
 #include <stdint.h>
@@ -94,5 +93,3 @@ bool fpga_image_load(struct fpga_loader_t* loader, unsigned int index);
 bool fpga_spi_selftest(void);
 bool fpga_sgpio_selftest(void);
 bool fpga_if_xcvr_selftest(void);
-
-#endif // __FPGA_H
diff --git a/firmware/common/fpga_regs.def b/firmware/common/fpga_regs.def
@@ -1,7 +1,7 @@
 /* -*- mode: c -*-
  *
  * Copyright 2012 Michael Ossmann
- * Copyright 2025 Great Scott Gadgets <info@greatscottgadgets.com>
+ * Copyright 2025-2026 Great Scott Gadgets <info@greatscottgadgets.com>
  *
  * This file is part of HackRF.
  *
@@ -21,8 +21,7 @@
  * Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FPGA_REGS_DEF
-#define __FPGA_REGS_DEF
+#pragma once
 
 #define FPGA_REG_SET_CLEAN(_d, _r) (_d->regs_dirty &= ~(1UL<<_r))
 #define FPGA_REG_SET_DIRTY(_d, _r) (_d->regs_dirty |= (1UL<<_r))
@@ -71,5 +70,3 @@ __MREG__(FPGA_STANDARD_TX_INTRP, 5, 0, 3)
 
 /* REG 06 (6): TX_PSTEP */
 __MREG__(FPGA_STANDARD_TX_PSTEP, 6, 0, 8)
-
-#endif // __FPGA_REGS_DEF
diff --git a/firmware/common/gpdma.h b/firmware/common/gpdma.h
@@ -20,8 +20,7 @@
  * Boston, MA 02110-1301, USA.
  */
 
-#ifndef __GPDMA_H__
-#define __GPDMA_H__
+#pragma once
 
 #include <stddef.h>
 #include <stdint.h>
@@ -40,5 +39,3 @@ void gpdma_lli_enable_interrupt(gpdma_lli_t* const lli);
 
 void gpdma_lli_create_loop(gpdma_lli_t* const lli, const size_t lli_count);
 void gpdma_lli_create_oneshot(gpdma_lli_t* const lli, const size_t lli_count);
-
-#endif /*__GPDMA_H__*/
diff --git a/firmware/common/gpio.h b/firmware/common/gpio.h
@@ -20,8 +20,7 @@
  * Boston, MA 02110-1301, USA.
  */
 
-#ifndef __GPIO_H__
-#define __GPIO_H__
+#pragma once
 
 #include <stdbool.h>
 
@@ -35,5 +34,3 @@ void gpio_output(gpio_t gpio);
 void gpio_input(gpio_t gpio);
 void gpio_write(gpio_t gpio, const bool value);
 bool gpio_read(gpio_t gpio);
-
-#endif /*__GPIO_H__*/
diff --git a/firmware/common/gpio_lpc.h b/firmware/common/gpio_lpc.h
@@ -20,8 +20,7 @@
  * Boston, MA 02110-1301, USA.
  */
 
-#ifndef __GPIO_LPC_H__
-#define __GPIO_LPC_H__
+#pragma once
 
 #include <stdint.h>
 
@@ -69,5 +68,3 @@ struct gpio {
 	.gpio_w = GPIO_LPC_W(_port_num, _pin_num), \
 }
 // clang-format on
-
-#endif /*__GPIO_LPC_H__*/
diff --git a/firmware/common/hackrf_core.h b/firmware/common/hackrf_core.h
@@ -21,8 +21,7 @@
  * Boston, MA 02110-1301, USA.
  */
 
-#ifndef __HACKRF_CORE_H
-#define __HACKRF_CORE_H
+#pragma once
 
 #ifdef __cplusplus
 extern "C" {
@@ -146,5 +145,3 @@ void pps_out_set(const uint8_t value);
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __HACKRF_CORE_H */
diff --git a/firmware/common/hackrf_ui.h b/firmware/common/hackrf_ui.h
@@ -20,8 +20,7 @@
  * Boston, MA 02110-1301, USA.
  */
 
-#ifndef HACKRF_UI_H
-#define HACKRF_UI_H
+#pragma once
 
 #include <stdbool.h>
 #include <stdint.h>
@@ -71,5 +70,3 @@ typedef struct {
  */
 const hackrf_ui_t* hackrf_ui(void);
 void hackrf_ui_set_enable(bool);
-
-#endif
diff --git a/firmware/common/i2c_bus.h b/firmware/common/i2c_bus.h
@@ -20,8 +20,7 @@
  * Boston, MA 02110-1301, USA.
  */
 
-#ifndef __I2C_BUS_H__
-#define __I2C_BUS_H__
+#pragma once
 
 #include <stddef.h>
 #include <stdint.h>
@@ -51,5 +50,3 @@ void i2c_bus_transfer(
 	const size_t tx_count,
 	uint8_t* const rx,
 	const size_t rx_count);
-
-#endif /*__I2C_BUS_H__*/
diff --git a/firmware/common/i2c_lpc.h b/firmware/common/i2c_lpc.h
@@ -20,8 +20,7 @@
  * Boston, MA 02110-1301, USA.
  */
 
-#ifndef __I2C_LPC_H__
-#define __I2C_LPC_H__
+#pragma once
 
 #include <stdbool.h>
 #include <stddef.h>
@@ -43,5 +42,3 @@ void i2c_lpc_transfer(
 	uint8_t* const data_rx,
 	const size_t count_rx);
 bool i2c_probe(i2c_bus_t* const bus, const uint_fast8_t device_address);
-
-#endif /*__I2C_LPC_H__*/
diff --git a/firmware/common/ice40_spi.h b/firmware/common/ice40_spi.h
@@ -19,8 +19,7 @@
  * Boston, MA 02110-1301, USA.
  */
 
-#ifndef __ICE40_SPI_H
-#define __ICE40_SPI_H
+#pragma once
 
 #include <stdbool.h>
 #include <stdint.h>
@@ -47,5 +46,3 @@ bool ice40_spi_syscfg_program(
 	uint8_t* buf,
 	size_t (*read_block_cb)(void* ctx),
 	void* read_ctx);
-
-#endif // __ICE40_SPI_H
diff --git a/firmware/common/locking.h b/firmware/common/locking.h
@@ -19,8 +19,7 @@
  * Boston, MA 02110-1301, USA.
  */
 
-#ifndef __LOCKING_H__
-#define __LOCKING_H__
+#pragma once
 
 #include <stdint.h>
 
@@ -51,5 +50,3 @@ static inline uint32_t store_exclusive(uint32_t val, volatile uint32_t* addr)
 	return 0;
 }
 #endif
-
-#endif /* __LOCKING_H__ */
diff --git a/firmware/common/lz4_blk.h b/firmware/common/lz4_blk.h
@@ -19,12 +19,9 @@
  * Boston, MA 02110-1301, USA.
  */
 
-#ifndef __LZ4_BLK_H
-#define __LZ4_BLK_H
+#pragma once
 
 #include <stdint.h>
 #include <stdlib.h>
 
 int lz4_blk_decompress(const uint8_t* src, uint8_t* dst, size_t length);
-
-#endif
diff --git a/firmware/common/lz4_buf.h b/firmware/common/lz4_buf.h
@@ -19,8 +19,7 @@
  * Boston, MA 02110-1301, USA.
  */
 
-#ifndef __LZ4_BUF_H
-#define __LZ4_BUF_H
+#pragma once
 
 #include <stdint.h>
 
@@ -31,5 +30,3 @@
 
 extern uint8_t lz4_in_buf[LZ4_BUFFER_SIZE];
 extern uint8_t lz4_out_buf[LZ4_BUFFER_SIZE];
-
-#endif /*__LZ4_BUF_H */