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feb5e4aaeb
* add change_reciver2sender()/change_sender2reciver()
This is a change to improve readability.
* txled, rxled off in matrix_init()
* add serial_send_packet() / serial_recive_packet()
This is a change to reduce object size.
* add serial_low() at ISR() top
* add __attribute__((always_inline)) to some functions
* modify serial_send_packet()/serial_recive_packet()
A little, object size reduction.
A little, speedup.
* add debug code to helix/serial.c
* Adjust sampling timing of serial signal being received
* add split_scomm.c/split_scomm.h and change serial.c/serial.h
serial.c was divided into 2 layers, split_scom.c and serial.c.
The upper layer split_scomm.c is called from matrix.c.
The lower layer serial.c accesses the hardware.
* add split_scomm.c/split_scomm.h into helix/rev1
* reduce object size helix/rev2/matrix.c
* remove checksum check, add parity check
* force occur parity error for test
* parity test ok. remove test code
* change some comment & add skip code when buffer_size == 0
* serial.c: multiple types of transaction support
Add 4 bits transaction-type field at packet top.
Select Transaction Descriptor Table entry by transaction-type.
* helix serial master-slave transaction optimize
Using multi-type transaction feature of serial.c, communication contents between master slaves were optimized.
* add debug code for retry
* add comment into each config.h
* fix ISR status drop
* add a debug macro 'debug_retry_chg()'
* reduce led_test size
* remove debug code from helix/serial.c and etc.
* helix:five_rows change TAPPING_TERM value 140
* Improved compatibility with let's split of serial.c. Finish helix/serial.c improvement.
- The difference with the original let's split's serial.c
- It's high-speed about 4 times.
- Stable bi-directional data transfer. (Helix need master to slave transfer)
- serial.h was divided 2 files, serial_config.h and sereial.h
- With multiple types of transaction support, communication contents can be optimized. (NEW flexible API)
- USE OLD Simple APIs (compatible with let's split serial.c)
- files :
- serial_config.h -- hardware configuration (need include by config.h)
- serial.c/serial.h -- serial communication
- USE NEW flexible APIs. (Support multi-type transaction function.)
serial.c was divided into 2 layers, split_scom.c and serial.c.
The upper layer split_scomm.c is called from matrix.c.
The lower layer serial.c accesses the hardware.
- files
- split_scomm.c -- communication buffer is defined in here. call by matrix.c.
- split_scomm.h -- buffer size is defined in here. include by matrix.c, split_util.c
- serial_config.h -- hardware configuration (need include by config.h)
To use the NEW API, specify #define SERIAL_USE_MULTI_TRANSACTION
- serial.c/serial.h -- serial communication lower layer
- NEW APIs for serial.c / serial.h (The lower layer)
// Soft Serial Transaction Descriptor
typedef struct _SSTD_t {
uint8_t *status;
uint8_t initiator2target_buffer_size;
uint8_t *initiator2target_buffer;
uint8_t target2initiator_buffer_size;
uint8_t *target2initiator_buffer;
} SSTD_t;
// initiator is transaction start side
void soft_serial_initiator_init(SSTD_t *sstd_table);
// target is interrupt accept side
void soft_serial_target_init(SSTD_t *sstd_table);
int soft_serial_transaction(int sstd_index);
int soft_serial_get_and_clean_target_status(int sstd_index);
- NEW APIs for split_scomm.c / split_scomm.h (The upper layer)
move from old serial.c the following buffer and functions
serial_slave_buffer[]
serial_master_buffer[]
void serial_master_init(void)
void serial_slave_init(void)
int serial_update_buffers(void)
define SERIAL_xxxxx_BUFFER_LENGTH move from serial_config.h to split_scomm.h
74 lines
2.1 KiB
C
74 lines
2.1 KiB
C
#ifdef USE_SERIAL
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#ifdef SERIAL_USE_MULTI_TRANSACTION
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/* --- USE flexible API (using multi-type transaction function) --- */
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#include <stdbool.h>
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#include <stdint.h>
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#include <stddef.h>
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#include <split_scomm.h>
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#include "serial.h"
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#ifdef SERIAL_DEBUG_MODE
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#include <avr/io.h>
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#endif
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uint8_t volatile serial_slave_buffer[SERIAL_SLAVE_BUFFER_LENGTH] = {0};
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uint8_t volatile serial_master_buffer[SERIAL_MASTER_BUFFER_LENGTH] = {0};
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uint8_t volatile status_com = 0;
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uint8_t volatile status1 = 0;
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uint8_t slave_buffer_change_count = 0;
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uint8_t s_change_old = 0xff;
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SSTD_t transactions[] = {
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#define GET_SLAVE_STATUS 0
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/* master buffer not changed, only recive slave_buffer_change_count */
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{ (uint8_t *)&status_com,
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0, NULL,
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sizeof(slave_buffer_change_count), &slave_buffer_change_count,
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},
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#define PUT_MASTER_GET_SLAVE_STATUS 1
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/* master buffer changed need send, and recive slave_buffer_change_count */
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{ (uint8_t *)&status_com,
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sizeof(serial_master_buffer), (uint8_t *)serial_master_buffer,
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sizeof(slave_buffer_change_count), &slave_buffer_change_count,
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},
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#define GET_SLAVE_BUFFER 2
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/* recive serial_slave_buffer */
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{ (uint8_t *)&status1,
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0, NULL,
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sizeof(serial_slave_buffer), (uint8_t *)serial_slave_buffer
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}
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};
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void serial_master_init(void)
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{
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soft_serial_initiator_init(transactions);
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}
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void serial_slave_init(void)
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{
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soft_serial_target_init(transactions);
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}
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// 0 => no error
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// 1 => slave did not respond
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// 2 => checksum error
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int serial_update_buffers(int master_update)
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{
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int status;
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static int need_retry = 0;
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if( s_change_old != slave_buffer_change_count ) {
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status = soft_serial_transaction(GET_SLAVE_BUFFER);
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if( status == TRANSACTION_END )
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s_change_old = slave_buffer_change_count;
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}
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if( !master_update && !need_retry)
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status = soft_serial_transaction(GET_SLAVE_STATUS);
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else
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status = soft_serial_transaction(PUT_MASTER_GET_SLAVE_STATUS);
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need_retry = ( status == TRANSACTION_END ) ? 0 : 1;
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return status;
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}
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#endif // SERIAL_USE_MULTI_TRANSACTION
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#endif /* USE_SERIAL */
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