Fix strict non-prototype declaration warn.

Fixes #22.

Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>

src/fs/file.c

@@ -33,7 +33,7 @@ extern uint16_t flash_read_uint16(uintptr_t addr);
 extern uint8_t flash_read_uint8(uintptr_t addr);
 extern uint8_t *flash_read(uintptr_t addr);
 extern int flash_clear_file(file_t *ef);
-extern void low_flash_available();
+extern void low_flash_available(void);
 
 #ifndef ENABLE_EMULATION
 file_t sef_phy = {.fid = EF_PHY, .parent = 5, .name = NULL, .type = FILE_TYPE_INTERNAL_EF | FILE_DATA_FLASH | FILE_PERSISTENT, .data = NULL, .ef_structure = FILE_EF_TRANSPARENT, .acl = {0xff}};

src/fs/flash.c

@@ -61,7 +61,7 @@ extern uintptr_t flash_read_uintptr(uintptr_t addr);
 extern uint16_t flash_read_uint16(uintptr_t addr);
 extern uint8_t *flash_read(uintptr_t addr);
 
-extern void low_flash_available();
+extern void low_flash_available(void);
 
 uintptr_t last_base;
 uint32_t num_files = 0;

src/fs/low_flash.c

@@ -230,7 +230,7 @@ void low_flash_init() {
     flash_set_bounds(data_start_addr, data_end_addr);
 }
 
-void low_flash_init_core1() {
+void low_flash_init_core1(void) {
     mutex_enter_blocking(&mtx_flash);
     multicore_lockout_victim_init();
     locked_out = true;
@@ -243,7 +243,7 @@ void wait_flash_finish() {
     sem_acquire_blocking(&sem_flash); //decrease permits
 }
 
-void low_flash_available() {
+void low_flash_available(void) {
     mutex_enter_blocking(&mtx_flash);
     flash_available = true;
     mutex_exit(&mtx_flash);

src/fs/otp.c

@@ -315,7 +315,7 @@ bool otp_is_secure_boot_enabled(uint8_t *bootkey) {
     return false;
 }
 
-bool otp_is_secure_boot_locked() {
+bool otp_is_secure_boot_locked(void) {
     uint8_t bootkey_idx = 0xFF;
     if (otp_is_secure_boot_enabled(&bootkey_idx) == false) {
         return false;
@@ -518,7 +518,7 @@ void otp_migrate_chaff() {
 }
 #endif
 
-void init_otp_files() {
+void init_otp_files(void) {
 
 #ifdef PICO_RP2350
     otp_migrate_chaff();

src/fs/otp.h

@@ -46,12 +46,12 @@ extern int otp_write_data_raw(uint16_t row, const uint8_t *data, uint16_t len);
 #endif
 
 extern int otp_enable_secure_boot(uint8_t bootkey, bool secure_lock);
-extern void init_otp_files();
+extern void init_otp_files(void);
 
 extern const uint8_t *otp_key_1;
 extern const uint8_t *otp_key_2;
 
 extern bool otp_is_secure_boot_enabled(uint8_t *bootkey);
-extern bool otp_is_secure_boot_locked();
+extern bool otp_is_secure_boot_locked(void);
 
 #endif // _OTP_H_

src/main.c

@@ -47,7 +47,7 @@
 
 extern void do_flash();
 extern void low_flash_init();
-extern void init_otp_files();
+extern void init_otp_files(void);
 
 app_t apps[16];
 uint8_t num_apps = 0;
@@ -109,7 +109,7 @@ void execute_tasks();
 
 static bool req_button_pending = false;
 
-bool is_req_button_pending() {
+bool is_req_button_pending(void) {
     return req_button_pending;
 }
 
@@ -196,7 +196,7 @@ bool picok_board_button_read(void) {
 bool button_pressed_state = false;
 uint32_t button_pressed_time = 0;
 uint8_t button_press = 0;
-bool wait_button() {
+bool wait_button(void) {
     /* Disabled by default. As LED may not be properly configured,
        it will not be possible to indicate button press unless it
        is commissioned. */
@@ -244,7 +244,7 @@ __attribute__((weak)) int picokey_init() {
 
 bool set_rtc = false;
 
-bool has_set_rtc() {
+bool has_set_rtc(void) {
     return set_rtc;
 }
 
@@ -259,7 +259,7 @@ void set_rtc_time(time_t t) {
     set_rtc = true;
 }
 
-time_t get_rtc_time() {
+time_t get_rtc_time(void) {
 #ifdef PICO_PLATFORM
     struct timespec tv;
     aon_timer_get_time(&tv);

src/pico_keys.h

@@ -70,9 +70,9 @@
 #include <time.h>
 #endif
 
-extern bool wait_button();
+extern bool wait_button(void);
 
-extern void low_flash_init_core1();
+extern void low_flash_init_core1(void);
 
 static inline uint16_t make_uint16_t_be(uint8_t b1, uint8_t b2) {
     return (b1 << 8) | b2;
@@ -159,12 +159,12 @@ static inline uint32_t put_uint64_t_le(uint64_t n, uint8_t *b) {
     return 8;
 }
 
-extern void low_flash_available();
+extern void low_flash_available(void);
 extern int flash_clear_file(file_t *file);
 
 extern int (*button_pressed_cb)(uint8_t);
 
-extern bool is_req_button_pending();
+extern bool is_req_button_pending(void);
 
 #define SW_BYTES_REMAINING_00()             set_res_sw(0x61, 0x00)
 #define SW_WARNING_STATE_UNCHANGED()        set_res_sw(0x62, 0x00)
@@ -251,8 +251,8 @@ extern uint8_t pico_serial_hash[32];
 #define multicore_launch_func_core1(a) multicore_launch_core1((void (*) (void))a)
 #endif
 
-extern bool has_set_rtc();
-extern time_t get_rtc_time();
+extern bool has_set_rtc(void);
+extern time_t get_rtc_time(void);
 extern void set_rtc_time(time_t tv_sec);
 
 #endif