69 lines
1.8 KiB
C
69 lines
1.8 KiB
C
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#ifndef SAM9G20_COMIF_COOKIES_I2C_COOKIE_H_
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#define SAM9G20_COMIF_COOKIES_I2C_COOKIE_H_
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#include <fsfw/devicehandlers/CookieIF.h>
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#include <bsp_q7s/gpio/GpioIF.h>
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#include <string>
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namespace Gpio {
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enum Direction {
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IN = 0,
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OUT = 1
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};
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}
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/**
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* @brief Struct containing information about the GPIO to use. This is
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* required by the libgpiod to access and drive a GPIO.
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* @param chipname String of the chipname specifying the group which contains
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* the GPIO to access. E.g. gpiochip0. To detect names of
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* GPIO groups run gpiodetect on the linux command line.
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* @param lineNum The offset of the GPIO within the GPIO group.
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* @param consumer Name of the consumer currently accessing the GPIO.
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* @param direction Specifies whether the GPIO should be used as in- or output.
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*/
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typedef struct GpioConfig {
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GpioConfig(std::string chipname_, int lineNum_, std::string consumer_,
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Gpio::Direction direction_) :
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chipname(chipname_), lineNum(lineNum_), consumer(consumer_), direction(
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directio_) {
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}
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std::string chipname;
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int lineNum;
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std::string consumer;
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Gpio::Direction direction;
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} GpioConfig_t;
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using GpioMap = std::unordered_map<gpioId_t, GpioConfig_t>;
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using GpioMapIter = GpioMap::iterator;
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/**
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* @brief Cookie for the GpioIF. Allows the GpioIF to determine which
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* GPIOs to initialize and whether they should be configured as in- or
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* output.
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* @details One GpioCookie can hold multiple GPIO configurations. To add a new
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* GPIO configuration to a GpioCookie use the GpioCookie::addGpio
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* function.
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*
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* @author J. Meier
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*/
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class GpioCookie: public CookieIF {
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public:
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GpioCookie();
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virtual ~GpioCookie();
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void addGpio(GpioMap newEntry);
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/**
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* @brief Get map with registered GPIOs.
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*/
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GpioMap getGpioMap() const;
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private:
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GpioMap gpioMap;
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GpioMapIter gpioMapIter;
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};
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#endif
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