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jlechner |
/**
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* \brief Driver for 7-segment module.
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*/
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#ifndef __dis7seg_h__
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#define __dis7seg_h__
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#include "drivers.h"
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#define DISP7SEG_STATUS_BOFF 0
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#define DISP7SEG_STATUS_LOOR 0x7
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#define DISP7SEG_STATUS_FSS 0x4
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#define DISP7SEG_STATUS_BUSY 0x3
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#define DISP7SEG_STATUS_ERR 0x2
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#define DISP7SEG_STATUS_RDY 0x1
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#define DISP7SEG_STATUS_INT 0x0
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#define DISP7SEG_CONFIG_BOFF 2
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#define DISP7SEG_CONFIG_LOOW 0x7
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#define DISP7SEG_CONFIG_EFSS 0x4
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#define DISP7SEG_CONFIG_OUTD 0x3
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#define DISP7SEG_CONFIG_SRES 0x2
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#define DISP7SEG_CONFIG_ID 0x1
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#define DISP7SEG_CONFIG_INTA 0x0
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#define DISP7SEG_PRESC_L_BOFF 4
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#define DISP7SEG_PRESC_H_BOFF 5
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#define DISP7SEG_DISPLAY_CMD 6
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#define DISP7SEG_DISPLAY_VALUE 7
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/**
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* \struct dis7seg_handle_t
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* \brief Stores context for access of a specific extension module.
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*/
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typedef struct {
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scarts_addr_t baseAddress;
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uint8_t segmentCount;
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} dis7seg_handle_t;
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/**
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* \brief Initilizes a new handle for a memory mapped module.
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* \param h The handle which is initialized.
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* \param baseAddress The base addresse where the module is mapped.
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* \param segmentCount The number of available segments.
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*/
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void dis7seg_initHandle(dis7seg_handle_t *h, scarts_addr_t baseAddress, uint8_t segmentCount);
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/**
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* \brief Free dynamically allocated resources.
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* \param h Handle.
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*/
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void dis7seg_releaseHandle(dis7seg_handle_t *h);
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/**
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* \brief Sets the prescaler for multiplexing digits.
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* \param h Handle.
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* \param value Specifies the number of clock cycles for multiplexing the digits.
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*/
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void dis7seg_setPrescaler(dis7seg_handle_t *h, uint16_t value);
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/**
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* \brief Display a value on a specific digit.
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* \param h Handle.
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* \param index Specifies which digit is used.
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* \param value Displayed value.
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*/
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void dis7seg_setDigitValue(dis7seg_handle_t *h, uint8_t index, uint8_t value);
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void dis7seg_displayUInt(dis7seg_handle_t *h, uint8_t index, uint32_t value);
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/**
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* \brief Display a byte value on two digits.
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* \param h Handle.
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* \param index Specifies the index of the first digit.
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* The second digit is written on index+1.
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* \param value Displayed value.
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*/
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void dis7seg_displayUInt8(dis7seg_handle_t *h, uint8_t index, uint8_t value);
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/**
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* \brief Display a 2-byte value on four digits.
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* \param h Handle.
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* \param index Specifies the index of the first digit.
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* The second digit is written on index+1, etc.
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* \param value Displayed value.
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*/
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void dis7seg_displayUInt16(dis7seg_handle_t *h, uint8_t index, uint16_t value);
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/**
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* \brief Display a 4-byte value on eight digits.
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* \param h Handle.
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* \param index Specifies the index of the first digit.
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* The second digit is written on index+1, etc.
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* \param value Displayed value.
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*/
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void dis7seg_displayUInt32(dis7seg_handle_t *h, uint8_t index, uint32_t value);
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/**
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* \brief Display a byte value as hexadecimal number on two digits.
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* \param h Handle.
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* \param index Specifies the index of the first digit.
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* The second digit is written on index+1.
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* \param value Displayed value.
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*/
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void dis7seg_displayHexUInt8(dis7seg_handle_t *h, uint8_t index, uint8_t value);
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/**
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* \brief Display a 2-byte value as hexadecimal number on four digits.
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* \param h Handle.
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* \param index Specifies the index of the first digit.
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* The second digit is written on index+1, etc.
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* \param value Displayed value.
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*/
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void dis7seg_displayHexUInt16(dis7seg_handle_t *h, uint8_t index, uint16_t value);
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/**
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* \brief Display a 4-byte value as hexadecimal number on eight digits.
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* \param h Handle.
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* \param index Specifies the index of the first digit.
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* The second digit is written on index+1, etc.
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* \param value Displayed value.
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*/
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void dis7seg_displayHexUInt32(dis7seg_handle_t *h, uint8_t index, uint32_t value);
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/**
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* \brief Get the currently displayed value of a specific digit.
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* \param h Handle.
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* \param index Specifies the index of the digit.
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* \return The Displayed value.
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*/
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uint8_t dis7seg_getDigitValue(dis7seg_handle_t *h, uint8_t index);
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/**
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* \brief Enable/disable the dot segment of a specific digit.
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* \param h Handle.
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* \param index Specifies the index of the digit.
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* \param enabled 1..enabled, 0..disabled.
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*/
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/**
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* \brief Display a byte value on two digits.
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* \param h Handle.
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* \param index Specifies the index of the first digit.
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* The second digit is written on index+1.
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* \param value Displayed value.
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*/
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void dis7seg_displayByte(dis7seg_handle_t *h, uint8_t index, uint8_t value);
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/**
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* \brief Display a 2-byte value on four digits.
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* \param h Handle.
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* \param index Specifies the index of the first digit.
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* The second digit is written on index+1, etc.
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* \param value Displayed value.
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*/
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void dis7seg_displayHalfword(dis7seg_handle_t *h, uint8_t index, uint16_t value);
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/**
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* \brief Display a 4-byte value on eight digits.
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* \param h Handle.
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* \param index Specifies the index of the first digit.
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* The second digit is written on index+1, etc.
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* \param value Displayed value.
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*/
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void dis7seg_displayWord(dis7seg_handle_t *h, uint8_t index, uint32_t value);
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void dis7seg_setDigitDot(dis7seg_handle_t *h, uint8_t index, uint8_t enabled);
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#endif // __dis7seg_h__
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