incubator-nuttx/drivers/wireless/spirit/include/spirit_gpio.h

580 lines
24 KiB
C

/******************************************************************************
* drivers/wireless/spirit/include/spirit_gpio.h
*
* Copyright(c) 2015 STMicroelectronics
* Author: VMA division - AMS
* Version 3.2.2 08-July-2015
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************/
#ifndef __DRIVERS_WIRELESS_SPIRIT_INCLUDE_SPIRIT_GPIO_H
#define __DRIVERS_WIRELESS_SPIRIT_INCLUDE_SPIRIT_GPIO_H
/* This module can be used to configure the Spirit GPIO pins to perform
* specific functions. The structure gpioIRQ can be used to specify these
* features for one of the four Spirit GPIO pin.
*
* The following example shows how to configure a pin (GPIO 3) to be used as
* an IRQ source for a microcontroller using the spirit_gpio_initialize()
* function.
*
* Example:
*
* struct spirit_gpio_init_s g_gpio_init =
* {
* SPIRIT_GPIO_3,
* SPIRIT_GPIO_MODE_DIGITAL_OUTPUT_LP,
* SPIRIT_GPIO_DIG_OUT_IRQ
* };
*
* ...
*
* spirit_gpio_initialize(&g_gpio_init);
*
* NOTE: Please read the functions documentation for the other GPIO
* features.
*/
/******************************************************************************
* Included Files
******************************************************************************/
#include "spirit_regs.h"
#include "spirit_types.h"
/******************************************************************************
* Pre-processor Definitions
******************************************************************************/
/* Macros used in debug assertions */
#define IS_SPIRIT_GPIO(pin) \
((pin == SPIRIT_GPIO_0) || (pin == SPIRIT_GPIO_1) || \
(pin == SPIRIT_GPIO_2) || (pin == SPIRIT_GPIO_3))
#define IS_SPIRIT_GPIO_MODE(mode) \
((mode == SPIRIT_GPIO_MODE_DIGITAL_INPUT) || \
(mode == SPIRIT_GPIO_MODE_DIGITAL_OUTPUT_LP) || \
(mode == SPIRIT_GPIO_MODE_DIGITAL_OUTPUT_HP))
#define IS_SPIRIT_GPIO_IO(iosel) \
((iosel == SPIRIT_GPIO_DIG_OUT_IRQ) || \
(iosel == SPIRIT_GPIO_DIG_OUT_POR_INV) || \
(iosel == SPIRIT_GPIO_DIG_OUT_WUT_EXP) || \
(iosel == SPIRIT_GPIO_DIG_OUT_LBD) || \
(iosel == SPIRIT_GPIO_DIG_OUT_TX_DATA) || \
(iosel == SPIRIT_GPIO_DIG_OUT_TX_STATE) || \
(iosel == SPIRIT_GPIO_DIG_OUT_TX_FIFO_ALMOST_EMPTY) || \
(iosel == SPIRIT_GPIO_DIG_OUT_TX_FIFO_ALMOST_FULL) || \
(iosel == SPIRIT_GPIO_DIG_OUT_RX_DATA) || \
(iosel == SPIRIT_GPIO_DIG_OUT_RX_CLOCK) || \
(iosel == SPIRIT_GPIO_DIG_OUT_RX_STATE) || \
(iosel == SPIRIT_GPIO_DIG_OUT_RX_FIFO_ALMOST_FULL) || \
(iosel == SPIRIT_GPIO_DIG_OUT_RX_FIFO_ALMOST_EMPTY) || \
(iosel == SPIRIT_GPIO_DIG_OUT_ANTENNA_SWITCH) || \
(iosel == SPIRIT_GPIO_DIG_OUT_VALID_PREAMBLE) || \
(iosel == SPIRIT_GPIO_DIG_OUT_SYNC_DETECTED) || \
(iosel == SPIRIT_GPIO_DIG_OUT_RSSI_THRESHOLD) || \
(iosel == SPIRIT_GPIO_DIG_OUT_MCU_CLOCK) || \
(iosel == SPIRIT_GPIO_DIG_OUT_TX_RX_MODE) || \
(iosel == SPIRIT_GPIO_DIG_OUT_VDD) || \
(iosel == SPIRIT_GPIO_DIG_OUT_GND) || \
(iosel == SPIRIT_GPIO_DIG_OUT_SMPS_EXT) ||\
(iosel == SPIRIT_GPIO_DIG_OUT_SLEEP_OR_STANDBY) ||\
(iosel == SPIRIT_GPIO_DIG_OUT_READY) ||\
(iosel == SPIRIT_GPIO_DIG_OUT_LOCK) ||\
(iosel == SPIRIT_GPIO_DIG_OUT_WAIT_FOR_LOCK_SIG) ||\
(iosel == SPIRIT_GPIO_DIG_OUT_WAIT_FOR_TIMER_FOR_LOCK) ||\
(iosel == SPIRIT_GPIO_DIG_OUT_WAIT_FOR_READY2_SIG) ||\
(iosel == SPIRIT_GPIO_DIG_OUT_WAIT_FOR_TIMER_FOR_PM_SET) ||\
(iosel == SPIRIT_GPIO_DIG_OUT_WAIT_VCO_CALIBRATION) ||\
(iosel == SPIRIT_GPIO_DIG_OUT_ENABLE_SYNTH_FULL_CIRCUIT) ||\
(iosel == SPIRIT_GPIO_DIG_OUT_WAIT_FOR_RCCAL_OK_SIG) ||\
(iosel == SPIRIT_GPIO_DIG_IN_TX_COMMAND) ||\
(iosel == SPIRIT_GPIO_DIG_IN_RX_COMMAND) ||\
(iosel == SPIRIT_GPIO_DIG_IN_TX_DATA_INPUT_FOR_DIRECTRF) ||\
(iosel == SPIRIT_GPIO_DIG_IN_DATA_WAKEUP) ||\
(iosel == SPIRIT_GPIO_DIG_IN_EXT_CLOCK_AT_34_7KHZ))
#define IS_SPIRIT_GPIO_LEVEL(level) \
(((level) == LOW) || ((level) == HIGH))
#define IS_SPIRIT_CLOCK_OUTPUT_XO(ratio) \
(((ratio) == XO_RATIO_1) || ((ratio) == XO_RATIO_2_3) || \
((ratio) == XO_RATIO_1_2) || ((ratio) == XO_RATIO_1_3) || \
((ratio) == XO_RATIO_1_4) || ((ratio) == XO_RATIO_1_6) || \
((ratio) == XO_RATIO_1_8) || ((ratio) == XO_RATIO_1_12) || \
((ratio) == XO_RATIO_1_16) || ((ratio) == XO_RATIO_1_24) || \
((ratio) == XO_RATIO_1_36) || ((ratio) == XO_RATIO_1_48) || \
((ratio) == XO_RATIO_1_64) || ((ratio) == XO_RATIO_1_96) || \
((ratio) == XO_RATIO_1_128) || ((ratio) == XO_RATIO_1_192))
#define IS_SPIRIT_CLOCK_OUTPUT_RCO(ratio) \
(((ratio) == RCO_RATIO_1) || ((ratio) == RCO_RATIO_1_128))
#define IS_SPIRIT_CLOCK_OUTPUT_EXTRA_CYCLES(cycles) \
(((cycles) == EXTRA_CLOCK_CYCLES_0) || \
((cycles) == EXTRA_CLOCK_CYCLES_64) || \
((cycles) == EXTRA_CLOCK_CYCLES_256) || \
((cycles) == EXTRA_CLOCK_CYCLES_512))
/******************************************************************************
* Public Types
******************************************************************************/
#ifdef __cplusplus
extern "C"
{
#endif
/* SPIRIT GPIO pin enumeration. */
enum spirit_gpio_pin_e
{
SPIRIT_GPIO_0 = GPIO0_CONF_BASE, /* GPIO_0 selected */
SPIRIT_GPIO_1 = GPIO1_CONF_BASE, /* GPIO_1 selected */
SPIRIT_GPIO_2 = GPIO2_CONF_BASE, /* GPIO_2 selected */
SPIRIT_GPIO_3 = GPIO3_CONF_BASE /* GPIO_3 selected */
};
/* SPIRIT GPIO mode enumeration. */
enum spirit_gpio_mode_e
{
SPIRIT_GPIO_MODE_DIGITAL_INPUT = 0x01, /* Digital Input on GPIO */
SPIRIT_GPIO_MODE_DIGITAL_OUTPUT_LP = 0x02, /* Digital Output on GPIO
* (low current) */
SPIRIT_GPIO_MODE_DIGITAL_OUTPUT_HP = 0x03 /* Digital Output on GPIO
* (high current) */
};
/* SPIRIT I/O selection enumeration. */
enum spirit_gpio_io_e
{
SPIRIT_GPIO_DIG_OUT_IRQ = 0x00, /* nIRQ (Interrupt Request,
* active low) , default
* configuration after POR */
SPIRIT_GPIO_DIG_OUT_POR_INV = 0x08, /* POR inverted (active low) */
SPIRIT_GPIO_DIG_OUT_WUT_EXP = 0x10, /* Wake-Up Timer expiration:
* "1" when WUT has expired */
SPIRIT_GPIO_DIG_OUT_LBD = 0x18, /* Low battery detection: "1"
* when battery is below
* threshold setting */
SPIRIT_GPIO_DIG_OUT_TX_DATA = 0x20, /* TX data internal clock
* output (TX data are sampled
* on the rising edge of it) */
SPIRIT_GPIO_DIG_OUT_TX_STATE = 0x28, /* TX state indication: "1"
* when Spirit1 is passing in
* the TX state */
SPIRIT_GPIO_DIG_OUT_TX_FIFO_ALMOST_EMPTY = 0x30, /* TX FIFO Almost Empty Flag */
SPIRIT_GPIO_DIG_OUT_TX_FIFO_ALMOST_FULL = 0x38, /* TX FIFO Almost Full Flag */
SPIRIT_GPIO_DIG_OUT_RX_DATA = 0x40, /* RX data output */
SPIRIT_GPIO_DIG_OUT_RX_CLOCK = 0x48, /* RX clock output
* (recovered from received
* data) */
SPIRIT_GPIO_DIG_OUT_RX_STATE = 0x50, /* RX state indication: "1"
* when Spirit1 is passing in
* the RX state */
SPIRIT_GPIO_DIG_OUT_RX_FIFO_ALMOST_FULL = 0x58, /* RX FIFO Almost Full Flag */
SPIRIT_GPIO_DIG_OUT_RX_FIFO_ALMOST_EMPTY = 0x60, /* RX FIFO Almost Empty Flag */
SPIRIT_GPIO_DIG_OUT_ANTENNA_SWITCH = 0x68, /* Antenna switch used for
* antenna diversity */
SPIRIT_GPIO_DIG_OUT_VALID_PREAMBLE = 0x70, /* Valid Preamble Detected Flag */
SPIRIT_GPIO_DIG_OUT_SYNC_DETECTED = 0x78, /* Sync WordSync Word Detected
* Flag */
SPIRIT_GPIO_DIG_OUT_RSSI_THRESHOLD = 0x80, /* RSSI above threshold */
SPIRIT_GPIO_DIG_OUT_MCU_CLOCK = 0x88, /* MCU Clock */
SPIRIT_GPIO_DIG_OUT_TX_RX_MODE = 0x90, /* TX or RX mode indicator
* (to enable an external range
* extender) */
SPIRIT_GPIO_DIG_OUT_VDD = 0x98, /* VDD (to emulate an additional
* GPIO of the MCU, programmable
* by SPI) */
SPIRIT_GPIO_DIG_OUT_GND = 0xa0, /* GND (to emulate an additional
* GPIO of the MCU, programmable
* by SPI) */
SPIRIT_GPIO_DIG_OUT_SMPS_EXT = 0xa8, /* External SMPS enable
* signal (active high) */
SPIRIT_GPIO_DIG_OUT_SLEEP_OR_STANDBY = 0xb0,
SPIRIT_GPIO_DIG_OUT_READY = 0xb8,
SPIRIT_GPIO_DIG_OUT_LOCK = 0xc0,
SPIRIT_GPIO_DIG_OUT_WAIT_FOR_LOCK_SIG = 0xc8,
SPIRIT_GPIO_DIG_OUT_WAIT_FOR_TIMER_FOR_LOCK = 0xd0,
SPIRIT_GPIO_DIG_OUT_WAIT_FOR_READY2_SIG = 0xd8,
SPIRIT_GPIO_DIG_OUT_WAIT_FOR_TIMER_FOR_PM_SET = 0xe0,
SPIRIT_GPIO_DIG_OUT_WAIT_VCO_CALIBRATION = 0xe8,
SPIRIT_GPIO_DIG_OUT_ENABLE_SYNTH_FULL_CIRCUIT = 0xf0,
SPIRIT_GPIO_DIG_OUT_WAIT_FOR_RCCAL_OK_SIG = 0xff,
SPIRIT_GPIO_DIG_IN_TX_COMMAND = 0x00,
SPIRIT_GPIO_DIG_IN_RX_COMMAND = 0x08,
SPIRIT_GPIO_DIG_IN_TX_DATA_INPUT_FOR_DIRECTRF = 0x10,
SPIRIT_GPIO_DIG_IN_DATA_WAKEUP = 0x18,
SPIRIT_GPIO_DIG_IN_EXT_CLOCK_AT_34_7KHZ = 0x20
};
/* SPIRIT GPIO Init structure definition. */
struct spirit_gpio_init_s
{
enum spirit_gpio_pin_e gpiopin; /* Specifies the GPIO pins to be
* configured. This parameter can be
* any value of enum spirit_gpio_pin_e */
enum spirit_gpio_mode_e gpiomode; /* Specifies the operating mode for
* the selected pins. This parameter
* can be a value of enum
* spirit_gpio_mode_e */
enum spirit_gpio_io_e gpioio; /* Specifies the I/O selection for
* the selected pins. This parameter
* can be a value of enum spirit_gpio_io_e */
};
/* SPIRIT OutputLevel enumeration. */
enum spirit_outputlevel_e
{
LOW = 0,
HIGH = 1
};
/* SPIRIT clock output XO prescaler enumeration. */
enum spirit_clockoutput_xoprescaler_e
{
XO_RATIO_1 = 0x00, /* XO Clock signal available on the GPIO divided by 1 */
XO_RATIO_2_3 = 0x02, /* XO Clock signal available on the GPIO divided by 2/3 */
XO_RATIO_1_2 = 0x04, /* XO Clock signal available on the GPIO divided by 1/2 */
XO_RATIO_1_3 = 0x06, /* XO Clock signal available on the GPIO divided by 1/3 */
XO_RATIO_1_4 = 0x08, /* XO Clock signal available on the GPIO divided by 1/4 */
XO_RATIO_1_6 = 0x0a, /* XO Clock signal available on the GPIO divided by 1/6 */
XO_RATIO_1_8 = 0x0c, /* XO Clock signal available on the GPIO divided by 1/8 */
XO_RATIO_1_12 = 0x0e, /* XO Clock signal available on the GPIO divided by 1/12 */
XO_RATIO_1_16 = 0x10, /* XO Clock signal available on the GPIO divided by 1/16 */
XO_RATIO_1_24 = 0x12, /* XO Clock signal available on the GPIO divided by 1/24 */
XO_RATIO_1_36 = 0x14, /* XO Clock signal available on the GPIO divided by 1/36 */
XO_RATIO_1_48 = 0x16, /* XO Clock signal available on the GPIO divided by 1/48 */
XO_RATIO_1_64 = 0x18, /* XO Clock signal available on the GPIO divided by 1/64 */
XO_RATIO_1_96 = 0x1a, /* XO Clock signal available on the GPIO divided by 1/96 */
XO_RATIO_1_128 = 0x1c, /* XO Clock signal available on the GPIO divided by 1/128 */
XO_RATIO_1_192 = 0x1e /* XO Clock signal available on the GPIO divided by 1/196 */
};
/* SPIRIT Clock Output RCO prescaler enumeration. */
enum spirit_clockoutput_rcoprescaler_e
{
RCO_RATIO_1 = 0x00, /* RCO Clock signal available on the GPIO divided by 1 */
RCO_RATIO_1_128 = 0x01 /* RCO Clock signal available on the GPIO divided by 1/128 */
};
/* SPIRIT Extra Clock Cycles enumeration. */
enum spirit_extra_clockcycles_e
{
EXTRA_CLOCK_CYCLES_0 = 0x00, /* 0 extra clock cycles provided to the MCU
* before switching to STANDBY * state */
EXTRA_CLOCK_CYCLES_64 = 0x20, /* 64 extra clock cycles provided to the
* MCU before switching to STANDBY state */
EXTRA_CLOCK_CYCLES_256 = 0x40, /* 256 extra clock cycles provided to the
* MCU before switching to STANDBY state */
EXTRA_CLOCK_CYCLES_512 = 0x60 /* 512 extra clock cycles provided to the
* MCU before switching to STANDBY state */
};
/* SPIRIT Clock Output initialization structure definition. */
struct spirit_clockoutput_init_s
{
uint8_t xoprescaler; /* Specifies the XO Ratio as clock output. This
* parameter can be any value from enum
* spirit_clockoutput_xoprescaler_e */
uint8_t rcoprescaler; /* Specifies the RCO Ratio as clock output. This
* parameter can be any value from enum
* spirit_clockoutput_rcoprescaler_e */
uint8_t xtracycles; /* Specifies the Extra Clock Cycles provided before
* entering in Standby State. This parameter can
* be any value from enum spirit_extra_clockcycles_e */
};
/******************************************************************************
* Public Function Prototypes
******************************************************************************/
/******************************************************************************
* Name: spirit_gpio_initialize
*
* Description:
* Initializes the Spirit GPIOx according to the specified parameters in
* the gpioinit parameter.
*
* Input Parameters:
* spirit - Reference to a Spirit library state structure instance
* gpioinit - A pointer to a struct spirit_gpio_init_s structure that
* contains the configuration information for the specified
* SPIRIT GPIO.
*
* Returned Value:
* Zero (OK) on success; a negated errno value on failure.
*
******************************************************************************/
int spirit_gpio_initialize(FAR struct spirit_library_s *spirit,
FAR const struct spirit_gpio_init_s *gpioinit);
/******************************************************************************
* Name: spirit_gpio_enable_tempsensor
*
* Description:
* Enables or Disables the output of temperature sensor on SPIRIT GPIO_0.
*
* Input Parameters:
* spirit - Reference to a Spirit library state structure instance
* newstate - Bew state for temperature sensor.
*
* Returned Value:
* Zero (OK) on success; a negated errno value on failure.
*
******************************************************************************/
int spirit_gpio_enable_tempsensor(FAR struct spirit_library_s *spirit,
enum spirit_functional_state_e newstate);
/******************************************************************************
* Name: spirit_gpio_set_outputlevel
*
* Description:
* Forces SPIRIT GPIO_x configured as digital output, to VDD or GND.
*
* Input Parameters:
* spirit - Reference to a Spirit library state structure instance
* gpio - Specifies the GPIO to be configured. This parameter can be one
* of following values:
*
* SPIRIT_GPIO_0: SPIRIT GPIO_0
* SPIRIT_GPIO_1: SPIRIT GPIO_1
* SPIRIT_GPIO_2: SPIRIT GPIO_2
* SPIRIT_GPIO_3: SPIRIT GPIO_3
*
* level - Specifies the level. This parameter can be: HIGH or LOW.
*
* Returned Value:
* Zero (OK) on success; a negated errno value on failure.
*
******************************************************************************/
int spirit_gpio_set_outputlevel(FAR struct spirit_library_s *spirit,
enum spirit_gpio_pin_e gpio,
enum spirit_outputlevel_e level);
/******************************************************************************
* Name: spirit_gpio_get_outputlevel
*
* Description:
* Returns output value (VDD or GND) of SPIRIT GPIO_x, when it is configured
* as digital output.
*
* Input Parameters:
* spirit - Reference to a Spirit library state structure instance
* gpio - Specifies the GPIO to be read. This parameter can be one of
* following values:
*
* SPIRIT_GPIO_0: SPIRIT GPIO_0
* SPIRIT_GPIO_1: SPIRIT GPIO_1
* SPIRIT_GPIO_2: SPIRIT GPIO_2
* SPIRIT_GPIO_3: SPIRIT GPIO_3
*
* Returned Value:
* Logical level of selected GPIO configured as digital output. This
* parameter can be: HIGH or LOW.
*
******************************************************************************/
enum spirit_outputlevel_e
spirit_gpio_get_outputlevel(FAR struct spirit_library_s *spirit,
enum spirit_gpio_pin_e gpio);
/******************************************************************************
* Name: spirit_gpio_enable_clockoutput
*
* Description:
* Enables or Disables the MCU clock output.
*
* Input Parameters:
* spirit - Reference to a Spirit library state structure instance
* newstate - New state for the MCU clock output. This parameter can be:
* S_ENABLE or S_DISABLE.
*
* Returned Value:
* Zero (OK) on success; a negated errno value on failure.
*
******************************************************************************/
int spirit_gpio_enable_clockoutput(FAR struct spirit_library_s *spirit,
enum spirit_functional_state_e newstate);
/******************************************************************************
* Name: spirit_gpio_clockoutput_initialize
*
* Description:
* Initializes the SPIRIT Clock Output according to the specified parameters
* in the xClockOutputInitStruct.
*
* NOTE:
* The function spirit_gpio_enable_clockoutput() must be called in order to
* enable or disable the MCU clock dividers.
*
* Input Parameters:
* spirit - Reference to a Spirit library state structure instance
* clockoutput - Pointer to a struct spirit_clockoutput_init_s structure
* that contains the configuration information for the SPIRIT
* Clock Output.
*
* Returned Value:
* Zero (OK) on success; a negated errno value on failure.
*
******************************************************************************/
int spirit_gpio_clockoutput_initialize(FAR struct spirit_library_s *spirit,
FAR const struct spirit_clockoutput_init_s *clockoutput);
/******************************************************************************
* Name: spirit_gpio_set_xoprescaler
*
* Description:
* Sets the XO ratio as clock output.
*
* Input Parameters:
* spirit - Reference to a Spirit library state structure instance
* xoprescaler - the XO prescaler to be used as clock output. This
* parameter can be any value from enum
* spirit_clockoutput_xoprescaler_e .
*
* Returned Value:
* Zero (OK) on success; a negated errno value on failure.
*
******************************************************************************/
int spirit_gpio_set_xoprescaler(FAR struct spirit_library_s *spirit,
enum spirit_clockoutput_xoprescaler_e xoprescaler);
/******************************************************************************
* Name: spirit_gpio_get_xoprescaler
*
* Description:
* Returns the settled XO prescaler as clock output.
*
* Input Parameters:
* spirit - Reference to a Spirit library state structure instance
*
* Returned Value:
* Settled XO prescaler used for clock output.
*
******************************************************************************/
enum spirit_clockoutput_xoprescaler_e
spirit_gpio_get_xoprescaler(FAR struct spirit_library_s *spirit);
/******************************************************************************
* Name: spirit_gpio_set_rcoprescaler
*
* Description:
* Sets the RCO ratio as clock output
*
* Input Parameters:
* spirit - Reference to a Spirit library state structure instance
* rcoprescaler - The RCO prescaler to be used as clock output. This
* parameter can be any value from enum
* spirit_clockoutput_rcoprescaler_e .
*
* Returned Value:
* Zero (OK) on success; a negated errno value on failure.
*
******************************************************************************/
int spirit_gpio_set_rcoprescaler(FAR struct spirit_library_s *spirit,
enum spirit_clockoutput_rcoprescaler_e rcoprescaler);
/******************************************************************************
* Name: spirit_gpio_get_rcoprescaler
*
* Description:
* Returns the settled RCO prescaler as clock output.
*
* Input Parameters:
* spirit - Reference to a Spirit library state structure instance
*
* Returned Value:
* Settled RCO prescaler used for clock output.
*
******************************************************************************/
enum spirit_clockoutput_rcoprescaler_e
spirit_gpio_get_rcoprescaler(FAR struct spirit_library_s *spirit);
/******************************************************************************
* Name: spirit_gpio_set_extracycles
*
* Description:
* Sets the RCO ratio as clock output.
*
* Input Parameters:
* spirit - Reference to a Spirit library state structure instance
* xtracycles - The number of extra clock cycles provided before switching
* to STANDBY state. This parameter can be any value of enum
* spirit_extra_clockcycles_e.
*
* Returned Value:
* Zero (OK) on success; a negated errno value on failure.
*
******************************************************************************/
int spirit_gpio_set_extracycles(FAR struct spirit_library_s *spirit,
enum spirit_extra_clockcycles_e xtracycles);
/******************************************************************************
* Name: spirit_gpio_get_extracycles
*
* Description:
* Returns the settled RCO prescaler as clock output.
*
* Input Parameters:
* spirit - Reference to a Spirit library state structure instance
*
* Returned Value:
* Settled number of extra clock cycles provided before switching to STANDBY
* state.
*
******************************************************************************/
enum spirit_extra_clockcycles_e
spirit_gpio_get_extracycles(FAR struct spirit_library_s *spirit);
#endif /* __DRIVERS_WIRELESS_SPIRIT_INCLUDE_SPIRIT_GPIO_H*/