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147 lines
4.5 KiB
147 lines
4.5 KiB
#ifndef SOFT_SERIAL_H
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#define SOFT_SERIAL_H
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#include <stdbool.h>
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// ////////////////////////////////////////////
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// Need Soft Serial defines in serial_config.h
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// ////////////////////////////////////////////
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// ex.
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// #define SERIAL_PIN_DDR DDRD
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// #define SERIAL_PIN_PORT PORTD
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// #define SERIAL_PIN_INPUT PIND
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// #define SERIAL_PIN_MASK _BV(PD?) ?=0,2
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// #define SERIAL_PIN_INTERRUPT INT?_vect ?=0,2
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// Soft Serial Transaction Descriptor
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typedef struct _SSTD_t {
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uint8_t *status;
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uint8_t initiator2target_buffer_size;
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uint8_t *initiator2target_buffer;
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uint8_t target2initiator_buffer_size;
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uint8_t *target2initiator_buffer;
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} SSTD_t;
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// initiator is transaction start side
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void soft_serial_initiator_init(SSTD_t *sstd_table);
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// target is interrupt accept side
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void soft_serial_target_init(SSTD_t *sstd_table);
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// initiator resullt
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#define TRANSACTION_END 0
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#define TRANSACTION_NO_RESPONSE 0x1
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#define TRANSACTION_DATA_ERROR 0x2
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#ifndef SERIAL_USE_MULTI_TRANSACTION
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int soft_serial_transaction(void);
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#else
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int soft_serial_transaction(int sstd_index);
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#endif
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// target status
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// *SSTD_t.status has
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// initiator:
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// TRANSACTION_END
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// or TRANSACTION_NO_RESPONSE
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// or TRANSACTION_DATA_ERROR
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// target:
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// TRANSACTION_DATA_ERROR
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// or TRANSACTION_ACCEPTED
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#define TRANSACTION_ACCEPTED 0x4
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#ifdef SERIAL_USE_MULTI_TRANSACTION
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int soft_serial_get_and_clean_status(int sstd_index);
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#endif
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// debug flags
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#define SERIAL_DEBUG_MODE_WATCH_OUTMODE 0x1
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#define SERIAL_DEBUG_MODE_WATCH_RCVSAMPLE 0x2
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#define SERIAL_DEBUG_MODE_WATCH_BYTEWIDTH 0x4
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#define SERIAL_DEBUG_MODE_WATCH_SYNC 0x8
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#define SERIAL_DEBUG_MODE_WATCH_IOCHG 0x10
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#define SERIAL_DEBUG_MODE_WATCH_PARITY 0x20
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//#define SERIAL_DEBUG_MODE SERIAL_DEBUG_MODE_WATCH_OUTMODE
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//#define SERIAL_DEBUG_MODE SERIAL_DEBUG_MODE_WATCH_RCVSAMPLE
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//#define SERIAL_DEBUG_MODE SERIAL_DEBUG_MODE_WATCH_BYTEWIDTH
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//#define SERIAL_DEBUG_MODE (SERIAL_DEBUG_MODE_WATCH_RCVSAMPLE|SERIAL_DEBUG_MODE_WATCH_BYTEWIDTH)
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//#define SERIAL_DEBUG_MODE SERIAL_DEBUG_MODE_WATCH_SYNC
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//#define SERIAL_DEBUG_MODE (SERIAL_DEBUG_MODE_WATCH_RCVSAMPLE|SERIAL_DEBUG_MODE_WATCH_SYNC)
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//#define SERIAL_DEBUG_MODE SERIAL_DEBUG_MODE_WATCH_IOCHG
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//#define SERIAL_DEBUG_MODE (SERIAL_DEBUG_MODE_WATCH_IOCHG|SERIAL_DEBUG_MODE_WATCH_SYNC)
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//#define SERIAL_DEBUG_MODE SERIAL_DEBUG_MODE_WATCH_PARITY
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// Helix keyboard unused port (for Logic analyzer or oscilloscope)
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#ifdef SERIAL_DEBUG_MODE
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#define SERIAL_DBGPIN_DDR DDRB
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#define SERIAL_DBGPIN_PORT PORTB
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#define SERIAL_DBGPIN_MASK _BV(PB5)
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#endif
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#ifdef SERIAL_DEBUG_MODE
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#define serial_debug_init() SERIAL_DBGPIN_DDR |= SERIAL_DBGPIN_MASK
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#else
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#define serial_debug_init()
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#endif
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#if SERIAL_DEBUG_MODE & SERIAL_DEBUG_MODE_WATCH_OUTMODE
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#define debug_output_mode() SERIAL_DBGPIN_PORT |= SERIAL_DBGPIN_MASK
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#define debug_input_mode() SERIAL_DBGPIN_PORT &= ~SERIAL_DBGPIN_MASK
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#else
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#define debug_output_mode()
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#define debug_input_mode()
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#endif
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#if SERIAL_DEBUG_MODE & SERIAL_DEBUG_MODE_WATCH_RCVSAMPLE
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#define debug_recvsample() SERIAL_DBGPIN_PORT ^= SERIAL_DBGPIN_MASK
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#else
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#define debug_recvsample()
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#endif
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#if SERIAL_DEBUG_MODE & SERIAL_DEBUG_MODE_WATCH_BYTEWIDTH
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#define debug_bytewidth_start() SERIAL_DBGPIN_PORT |= SERIAL_DBGPIN_MASK
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#define debug_bytewidth_end() SERIAL_DBGPIN_PORT &= ~SERIAL_DBGPIN_MASK
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#else
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#define debug_bytewidth_start()
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#define debug_bytewidth_end()
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#endif
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#if SERIAL_DEBUG_MODE & SERIAL_DEBUG_MODE_WATCH_SYNC
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#define debug_sync_start() SERIAL_DBGPIN_PORT |= SERIAL_DBGPIN_MASK
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#define debug_sync_end() SERIAL_DBGPIN_PORT &= ~SERIAL_DBGPIN_MASK
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#else
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#define debug_sync_start()
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#define debug_sync_end()
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#endif
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#if SERIAL_DEBUG_MODE & SERIAL_DEBUG_MODE_WATCH_IOCHG
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#define debug_iochg_on() SERIAL_DBGPIN_PORT |= SERIAL_DBGPIN_MASK
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#define debug_iochg_off() SERIAL_DBGPIN_PORT &= ~SERIAL_DBGPIN_MASK
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#else
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#define debug_iochg_on()
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#define debug_iochg_off()
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#endif
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#if SERIAL_DEBUG_MODE & SERIAL_DEBUG_MODE_WATCH_PARITY
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#define debug_parity_on() SERIAL_DBGPIN_PORT |= SERIAL_DBGPIN_MASK
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#define debug_parity_off() SERIAL_DBGPIN_PORT &= ~SERIAL_DBGPIN_MASK
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#else
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#define debug_parity_on()
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#define debug_parity_off()
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#endif
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#define SYNC_DEBUG_MODE 0
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#if SYNC_DEBUG_MODE == 0
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#define debug_dummy_delay_recv()
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#define debug_dummy_delay_send()
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#endif
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#if SYNC_DEBUG_MODE == 1
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#define debug_dummy_delay_recv() _delay_us(3); _delay_sub_us(2)
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#define debug_dummy_delay_send()
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#endif
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#if SYNC_DEBUG_MODE == 2
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#define debug_dummy_delay_recv()
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#define debug_dummy_delay_send() _delay_us(3); _delay_sub_us(2)
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#endif
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#endif /* SOFT_SERIAL_H */
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