tools: Mass fixing of empty prototypes (for -Wstrict-prototypes)

components/driver/include/driver/adc.h

@@ -229,13 +229,13 @@ int adc1_get_voltage(adc1_channel_t channel) __attribute__((deprecated));
 /**
  * @brief Enable ADC power
  */
-void adc_power_on();
+void adc_power_on(void);
 
 /**
  * @brief Power off SAR ADC
  * This function will force power down for ADC
  */
-void adc_power_off();
+void adc_power_off(void);
 
 /**
  * @brief Initialize ADC pad
@@ -292,7 +292,7 @@ esp_err_t adc_i2s_mode_init(adc_unit_t adc_unit, adc_channel_t channel);
  * Note that adc1_config_channel_atten, adc1_config_width functions need
  * to be called to configure ADC1 channels, before ADC1 is used by the ULP.
  */
-void adc1_ulp_enable();
+void adc1_ulp_enable(void);
 
 /**
  * @brief Read Hall Sensor
@@ -313,7 +313,7 @@ void adc1_ulp_enable();
  *
  * @return The hall sensor reading.
  */
-int hall_sensor_read();
+int hall_sensor_read(void);
 
 /**
  * @brief Get the gpio number of a specific ADC2 channel.

components/driver/include/driver/adc2_wifi_internal.h

@@ -31,7 +31,7 @@ extern "C" {
  *      - ESP_OK success
  *      - ESP_ERR_TIMEOUT reserved for future use. Currently the function will wait until success.
  */
-esp_err_t adc2_wifi_acquire();
+esp_err_t adc2_wifi_acquire(void);
 
 
 /**
@@ -42,7 +42,7 @@ esp_err_t adc2_wifi_acquire();
  *
  * @return always return ESP_OK.
  */
-esp_err_t adc2_wifi_release();
+esp_err_t adc2_wifi_release(void);
 
 #ifdef __cplusplus
 }

components/driver/include/driver/can.h

@@ -238,7 +238,7 @@ esp_err_t can_driver_install(const can_general_config_t *g_config, const can_tim
  *      - ESP_OK: Successfully uninstalled CAN driver
  *      - ESP_ERR_INVALID_STATE: Driver is not in stopped/bus-off state, or is not installed
  */
-esp_err_t can_driver_uninstall();
+esp_err_t can_driver_uninstall(void);
 
 /**
  * @brief   Start the CAN driver
@@ -253,7 +253,7 @@ esp_err_t can_driver_uninstall();
  *      - ESP_OK: CAN driver is now running
  *      - ESP_ERR_INVALID_STATE: Driver is not in stopped state, or is not installed
  */
-esp_err_t can_start();
+esp_err_t can_start(void);
 
 /**
  * @brief   Stop the CAN driver
@@ -272,7 +272,7 @@ esp_err_t can_start();
  *      - ESP_OK: CAN driver is now Stopped
  *      - ESP_ERR_INVALID_STATE: Driver is not in running state, or is not installed
  */
-esp_err_t can_stop();
+esp_err_t can_stop(void);
 
 /**
  * @brief   Transmit a CAN message
@@ -379,7 +379,7 @@ esp_err_t can_reconfigure_alerts(uint32_t alerts_enabled, uint32_t *current_aler
  *      - ESP_OK: Bus recovery started
  *      - ESP_ERR_INVALID_STATE: CAN driver is not in the bus-off state, or is not installed
  */
-esp_err_t can_initiate_recovery();
+esp_err_t can_initiate_recovery(void);
 
 /**
  * @brief   Get current status information of the CAN driver
@@ -405,7 +405,7 @@ esp_err_t can_get_status_info(can_status_info_t *status_info);
  *      - ESP_OK: Transmit queue cleared
  *      - ESP_ERR_INVALID_STATE: CAN driver is not installed or TX queue is disabled
  */
-esp_err_t can_clear_transmit_queue();
+esp_err_t can_clear_transmit_queue(void);
 
 /**
  * @brief   Clear the receive queue
@@ -419,7 +419,7 @@ esp_err_t can_clear_transmit_queue();
  *      - ESP_OK: Transmit queue cleared
  *      - ESP_ERR_INVALID_STATE: CAN driver is not installed
  */
-esp_err_t can_clear_receive_queue();
+esp_err_t can_clear_receive_queue(void);
 
 #ifdef __cplusplus
 }

components/driver/include/driver/dac.h

@@ -99,12 +99,12 @@ esp_err_t dac_output_disable(dac_channel_t channel);
 /**
  * @brief Enable DAC output data from I2S
  */
-esp_err_t dac_i2s_enable();
+esp_err_t dac_i2s_enable(void);
 
 /**
  * @brief Disable DAC output data from I2S
  */
-esp_err_t dac_i2s_disable();
+esp_err_t dac_i2s_disable(void);
 #ifdef __cplusplus
 }
 #endif

components/driver/include/driver/gpio.h

@@ -475,7 +475,7 @@ esp_err_t gpio_install_isr_service(int intr_alloc_flags);
 /**
   * @brief Uninstall the driver's GPIO ISR service, freeing related resources.
   */
-void gpio_uninstall_isr_service();
+void gpio_uninstall_isr_service(void);
 
 /**
   * @brief Add ISR handler for the corresponding GPIO pin.

components/driver/include/driver/i2c.h

@@ -224,7 +224,7 @@ esp_err_t i2c_set_pin(i2c_port_t i2c_num, int sda_io_num, int scl_io_num,
  *
  * @return i2c command link handler
  */
-i2c_cmd_handle_t i2c_cmd_link_create();
+i2c_cmd_handle_t i2c_cmd_link_create(void);
 
 /**
  * @brief Free I2C command link

components/driver/include/driver/ledc.h

@@ -435,7 +435,7 @@ esp_err_t ledc_fade_func_install(int intr_alloc_flags);
  * @brief Uninstall LEDC fade function.
  *
  */
-void ledc_fade_func_uninstall();
+void ledc_fade_func_uninstall(void);
 
 /**
  * @brief Start LEDC fading.

components/driver/include/driver/rtc_io.h

@@ -219,7 +219,7 @@ esp_err_t rtc_gpio_isolate(gpio_num_t gpio_num);
  * Force hold signal is enabled before going into deep sleep for pins which
  * are used for EXT1 wakeup.
  */
-void rtc_gpio_force_hold_dis_all();
+void rtc_gpio_force_hold_dis_all(void);
 
 /**
  * @brief Set RTC GPIO pad drive capability

components/driver/include/driver/sdio_slave.h

@@ -111,7 +111,7 @@ esp_err_t sdio_slave_initialize(sdio_slave_config_t *config);
 
 /** De-initialize the sdio slave driver to release the resources.
  */
-void sdio_slave_deinit();
+void sdio_slave_deinit(void);
 
 /** Start hardware for sending and receiving, as well as set the IOREADY1 to 1.
  *
@@ -122,19 +122,19 @@ void sdio_slave_deinit();
  *  - ESP_ERR_INVALID_STATE if already started.
  *  - ESP_OK otherwise.
  */
-esp_err_t sdio_slave_start();
+esp_err_t sdio_slave_start(void);
 
 /** Stop hardware from sending and receiving, also set IOREADY1 to 0.
  *
  * @note this will not clear the data already in the driver, and also not reset the PKT_LEN and TOKEN1 counting. Call ``sdio_slave_reset`` to do that.
  */
-void sdio_slave_stop();
+void sdio_slave_stop(void);
 
 /** Clear the data still in the driver, as well as reset the PKT_LEN and TOKEN1 counting.
  *
  * @return always return ESP_OK.
  */
-esp_err_t sdio_slave_reset();
+esp_err_t sdio_slave_reset(void);
 
 /*---------------------------------------------------------------------------
  *                  Receive
@@ -263,7 +263,7 @@ esp_err_t sdio_slave_write_reg(int pos, uint8_t reg);
  *
  * @return the interrupt mask.
  */
-sdio_slave_hostint_t sdio_slave_get_host_intena();
+sdio_slave_hostint_t sdio_slave_get_host_intena(void);
 
 /** Set the interrupt enable for host.
  *

components/driver/include/driver/sdmmc_host.h

@@ -91,7 +91,7 @@ typedef struct {
  *      - ESP_ERR_INVALID_STATE if sdmmc_host_init was already called
  *      - ESP_ERR_NO_MEM if memory can not be allocated
  */
-esp_err_t sdmmc_host_init();
+esp_err_t sdmmc_host_init(void);
 
 /**
  * @brief Initialize given slot of SDMMC peripheral
@@ -218,7 +218,7 @@ esp_err_t sdmmc_host_io_int_wait(int slot, TickType_t timeout_ticks);
  *      - ESP_OK on success
  *      - ESP_ERR_INVALID_STATE if sdmmc_host_init function has not been called
  */
-esp_err_t sdmmc_host_deinit();
+esp_err_t sdmmc_host_deinit(void);
 
 /**
  * @brief Enable the pull-ups of sd pins.

components/driver/include/driver/sdspi_host.h

@@ -91,7 +91,7 @@ typedef struct {
  *      - ESP_OK on success
  *      - other error codes may be returned in future versions
  */
-esp_err_t sdspi_host_init();
+esp_err_t sdspi_host_init(void);
 
 /**
 * @brief Initialize SD SPI driver for the specific SPI controller
@@ -159,7 +159,7 @@ esp_err_t sdspi_host_set_card_clk(int slot, uint32_t freq_khz);
  *      - ESP_OK on success
  *      - ESP_ERR_INVALID_STATE if sdspi_host_init function has not been called
  */
-esp_err_t sdspi_host_deinit();
+esp_err_t sdspi_host_deinit(void);
 
 /**
  * @brief Enable SDIO interrupt.

components/driver/include/driver/spi_common.h

@@ -381,7 +381,7 @@ bool spicommon_dmaworkaround_req_reset(int dmachan, dmaworkaround_cb_t cb, void
  *
  * @return True when a DMA reset is requested but hasn't completed yet. False otherwise.
  */
-bool spicommon_dmaworkaround_reset_in_progress();
+bool spicommon_dmaworkaround_reset_in_progress(void);
 
 
 /**

components/driver/include/driver/touch_pad.h

@@ -117,7 +117,7 @@ typedef intr_handle_t touch_isr_handle_t;
  *     - ESP_OK Success
  *     - ESP_FAIL Touch pad init error
  */
-esp_err_t touch_pad_init();
+esp_err_t touch_pad_init(void);
 
 /**
  * @brief Un-install touch pad driver.
@@ -126,7 +126,7 @@ esp_err_t touch_pad_init();
  *     - ESP_OK   Success
  *     - ESP_FAIL Touch pad driver not initialized
  */
-esp_err_t touch_pad_deinit();
+esp_err_t touch_pad_deinit(void);
 
 /**
  * @brief Configure touch pad interrupt threshold.
@@ -364,7 +364,7 @@ esp_err_t touch_pad_get_fsm_mode(touch_fsm_mode_t *mode);
  * @return
  *      - ESP_OK on success
  */
-esp_err_t touch_pad_sw_start();
+esp_err_t touch_pad_sw_start(void);
 
 /**
  * @brief Set touch sensor interrupt threshold
@@ -468,28 +468,28 @@ esp_err_t touch_pad_clear_group_mask(uint16_t set1_mask, uint16_t set2_mask, uin
  * @return
  *      - ESP_OK on success
  */
-esp_err_t touch_pad_clear_status();
+esp_err_t touch_pad_clear_status(void);
 
 /**
  * @brief Get the touch sensor status, usually used in ISR to decide which pads are 'touched'.
  * @return
  *      - touch status
  */
-uint32_t touch_pad_get_status();
+uint32_t touch_pad_get_status(void);
 
 /**
  * @brief To enable touch pad interrupt
  * @return
  *      - ESP_OK on success
  */
-esp_err_t touch_pad_intr_enable();
+esp_err_t touch_pad_intr_enable(void);
 
 /**
  * @brief To disable touch pad interrupt
  * @return
  *      - ESP_OK on success
  */
-esp_err_t touch_pad_intr_disable();
+esp_err_t touch_pad_intr_disable(void);
 
 /**
  * @brief set touch pad filter calibration period, in ms.
@@ -539,7 +539,7 @@ esp_err_t touch_pad_filter_start(uint32_t filter_period_ms);
  *      - ESP_OK Success
  *      - ESP_ERR_INVALID_STATE driver state error
  */
-esp_err_t touch_pad_filter_stop();
+esp_err_t touch_pad_filter_stop(void);
 
 /**
  * @brief delete touch pad filter driver and release the memory
@@ -548,7 +548,7 @@ esp_err_t touch_pad_filter_stop();
  *      - ESP_OK Success
  *      - ESP_ERR_INVALID_STATE driver state error
  */
-esp_err_t touch_pad_filter_delete();
+esp_err_t touch_pad_filter_delete(void);
 
 /**
  * @brief Get the touch pad which caused wakeup from sleep

components/driver/include/driver/uart_select.h

@@ -40,7 +40,7 @@ void uart_set_select_notif_callback(uart_port_t uart_num, uart_select_notif_call
 /**
  * @brief Get mutex guarding select() notifications
  */
-portMUX_TYPE *uart_get_selectlock();
+portMUX_TYPE *uart_get_selectlock(void);
 
 #ifdef __cplusplus
 }