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Keyboard: Helix serial.c, split_scom.c bug fix and update (#4191)

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* helix/serial.c add support PD1,PD3,PE6 and configuration simplify

* Add comment about ATmega32U4 I2C

* Add compile time check for ATmega32U4 I2C

* change TAB code to 8 SPACE code

* Helix serial.c PORTD,PD0 test. OK

  OK PD0
  -  PD1
  OK PD2
  -  PD3
  -  PE6

* Helix serial.c PORTD,PD1 test. OK

   OK PD0
   OK PD1
   OK PD2
   -  PD3
   -  PE6

* Helix serial.c PORTD,PD3 test. OK

   OK PD0
   OK PD1
   OK PD2
   OK PD3
   -  PE6

* Helix serial.c PORTE,PD6 test. OK

   OK PD0
   OK PD1
   OK PD2
   OK PD3
   OK PE6

* Helix serial.c: PD0,PD1,PD3,PE6 all test end

* Helix serial.c: rename SOFT_SERIAL_PORT to SOFT_SERIAL_PIN

* Helix serial.c add debug code

* Helix serial.c: add transaction ID range check

* Helix serial.c debug code update

* Helix serial.c debug code update

* Helix serial.c: Strict checking of the value of tid.

* adjust the delay of serial.c

* Helix serial.c: remove debug code

* remove EXTRAFLAGS += -DCONSOLE_ENABLE from five_rows/rules.mk

tmk_core/common.mk has
 >ifeq ($(strip $(CONSOLE_ENABLE)), yes)
 >   TMK_COMMON_DEFS += -DCONSOLE_ENABLE

* Fix error handling in split_scomm.c

* add some comment to serial.c

* add some comment about SELECT_SOFT_SERIAL_SPEED
pull/4205/head
Takeshi ISHII 6 years ago committed by Drashna Jaelre
parent fbc6bd8266
commit 4665e4ffff
8 changed files with 227 additions and 135 deletions
Show Stats Download Patch File Download Diff File

15
keyboards/helix/pico/serial_config.h
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@ -1,16 +1,9 @@
#ifndef SOFT_SERIAL_CONFIG_H
#define SOFT_SERIAL_CONFIG_H
//// #error rev2 serial config
#ifndef SOFT_SERIAL_PIN
/* Soft Serial defines */
#define SERIAL_PIN_DDR DDRD
#define SERIAL_PIN_PORT PORTD
#define SERIAL_PIN_INPUT PIND
#define SERIAL_PIN_MASK _BV(PD2)
#define SERIAL_PIN_INTERRUPT INT2_vect
#define SOFT_SERIAL_PIN D2
#define SERIAL_SLAVE_BUFFER_LENGTH MATRIX_ROWS/2
#define SERIAL_MASTER_BUFFER_LENGTH MATRIX_ROWS/2
//// #error rev2 serial config
#endif /* SOFT_SERIAL_CONFIG_H */
#endif

15
keyboards/helix/rev1/keymaps/OLED_sample/serial_config.h
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@ -1,16 +1,9 @@
#ifndef SOFT_SERIAL_CONFIG_H
#define SOFT_SERIAL_CONFIG_H
//// #error rev1/keymaps/OLED_sample serial config
#ifndef SOFT_SERIAL_PIN
/* Soft Serial defines */
#define SERIAL_PIN_DDR DDRD
#define SERIAL_PIN_PORT PORTD
#define SERIAL_PIN_INPUT PIND
#define SERIAL_PIN_MASK _BV(PD2)
#define SERIAL_PIN_INTERRUPT INT2_vect
#define SOFT_SERIAL_PIN D2
#define SERIAL_SLAVE_BUFFER_LENGTH MATRIX_ROWS/2
#define SERIAL_MASTER_BUFFER_LENGTH 0
//// #error rev1/keymaps/OLED_sample serial config
#endif /* SOFT_SERIAL_CONFIG_H */
#endif

15
keyboards/helix/rev1/serial_config.h
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@ -1,16 +1,9 @@
#ifndef SOFT_SERIAL_CONFIG_H
#define SOFT_SERIAL_CONFIG_H
/// #error rev1 serial config
#ifndef SOFT_SERIAL_PIN
/* Soft Serial defines */
#define SERIAL_PIN_DDR DDRD
#define SERIAL_PIN_PORT PORTD
#define SERIAL_PIN_INPUT PIND
#define SERIAL_PIN_MASK _BV(PD0)
#define SERIAL_PIN_INTERRUPT INT0_vect
#define SOFT_SERIAL_PIN D0
#define SERIAL_SLAVE_BUFFER_LENGTH MATRIX_ROWS/2
#define SERIAL_MASTER_BUFFER_LENGTH 0
/// #error rev1 serial config
#endif /* SOFT_SERIAL_CONFIG_H */
#endif

4
keyboards/helix/rev2/keymaps/five_rows/rules.mk
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@ -122,10 +122,6 @@ ifeq ($(strip $(Link_Time_Optimization)),yes)
EXTRAFLAGS += -flto -DUSE_Link_Time_Optimization
endif
ifeq ($(strip $(CONSOLE_ENABLE)),yes)
EXTRAFLAGS += -DCONSOLE_ENABLE
endif
# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
SLEEP_LED_ENABLE = no # Breathing sleep LED during USB suspend

15
keyboards/helix/rev2/serial_config.h
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@ -1,15 +1,8 @@
#ifndef SOFT_SERIAL_CONFIG_H
#define SOFT_SERIAL_CONFIG_H
//// #error rev2 serial config
#ifndef SOFT_SERIAL_PIN
/* Soft Serial defines */
#define SERIAL_PIN_DDR DDRD
#define SERIAL_PIN_PORT PORTD
#define SERIAL_PIN_INPUT PIND
#define SERIAL_PIN_MASK _BV(PD2)
#define SERIAL_PIN_INTERRUPT INT2_vect
#define SOFT_SERIAL_PIN D2
#define SERIAL_USE_MULTI_TRANSACTION
//// #error rev2 serial config
#endif /* SOFT_SERIAL_CONFIG_H */
#endif

48
keyboards/helix/rev2/split_scomm.c
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@ -10,6 +10,9 @@
#ifdef SERIAL_DEBUG_MODE
#include <avr/io.h>
#endif
#ifdef CONSOLE_ENABLE
#include <print.h>
#endif
uint8_t volatile serial_slave_buffer[SERIAL_SLAVE_BUFFER_LENGTH] = {0};
uint8_t volatile serial_master_buffer[SERIAL_MASTER_BUFFER_LENGTH] = {0};
@ -17,6 +20,7 @@ uint8_t volatile status_com = 0;
uint8_t volatile status1 = 0;
uint8_t slave_buffer_change_count = 0;
uint8_t s_change_old = 0xff;
uint8_t s_change_new = 0xff;
SSTD_t transactions[] = {
#define GET_SLAVE_STATUS 0
@ -41,12 +45,12 @@ SSTD_t transactions[] = {
void serial_master_init(void)
{
soft_serial_initiator_init(transactions);
soft_serial_initiator_init(transactions, TID_LIMIT(transactions));
}
void serial_slave_init(void)
{
soft_serial_target_init(transactions);
soft_serial_target_init(transactions, TID_LIMIT(transactions));
}
// 0 => no error
@ -54,19 +58,37 @@ void serial_slave_init(void)
// 2 => checksum error
int serial_update_buffers(int master_update)
{
int status;
int status, smatstatus;
static int need_retry = 0;
if( s_change_old != slave_buffer_change_count ) {
status = soft_serial_transaction(GET_SLAVE_BUFFER);
if( status == TRANSACTION_END )
s_change_old = slave_buffer_change_count;
if( s_change_old != s_change_new ) {
smatstatus = soft_serial_transaction(GET_SLAVE_BUFFER);
if( smatstatus == TRANSACTION_END ) {
s_change_old = s_change_new;
#ifdef CONSOLE_ENABLE
uprintf("slave matrix = %b %b %b %b %b\n",
serial_slave_buffer[0], serial_slave_buffer[1],
serial_slave_buffer[2], serial_slave_buffer[3],
serial_slave_buffer[4] );
#endif
}
} else {
// serial_slave_buffer dosen't change
smatstatus = TRANSACTION_END; // dummy status
}
if( !master_update && !need_retry) {
status = soft_serial_transaction(GET_SLAVE_STATUS);
} else {
status = soft_serial_transaction(PUT_MASTER_GET_SLAVE_STATUS);
}
if( status == TRANSACTION_END ) {
s_change_new = slave_buffer_change_count;
need_retry = 0;
} else {
need_retry = 1;
}
if( !master_update && !need_retry)
status = soft_serial_transaction(GET_SLAVE_STATUS);
else
status = soft_serial_transaction(PUT_MASTER_GET_SLAVE_STATUS);
need_retry = ( status == TRANSACTION_END ) ? 0 : 1;
return status;
return smatstatus;
}
#endif // SERIAL_USE_MULTI_TRANSACTION

228
keyboards/helix/serial.c
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@ -14,7 +14,56 @@
#include "serial.h"
//#include <pro_micro.h>
#ifdef USE_SERIAL
#ifdef SOFT_SERIAL_PIN
#ifdef __AVR_ATmega32U4__
// if using ATmega32U4 I2C, can not use PD0 and PD1 in soft serial.
#ifdef USE_I2C
#if SOFT_SERIAL_PIN == D0 || SOFT_SERIAL_PIN == D1
#error Using ATmega32U4 I2C, so can not use PD0, PD1
#endif
#endif
#if SOFT_SERIAL_PIN >= D0 && SOFT_SERIAL_PIN <= D3
#define SERIAL_PIN_DDR DDRD
#define SERIAL_PIN_PORT PORTD
#define SERIAL_PIN_INPUT PIND
#if SOFT_SERIAL_PIN == D0
#define SERIAL_PIN_MASK _BV(PD0)
#define EIMSK_BIT _BV(INT0)
#define EICRx_BIT (~(_BV(ISC00) | _BV(ISC01)))
#define SERIAL_PIN_INTERRUPT INT0_vect
#elif SOFT_SERIAL_PIN == D1
#define SERIAL_PIN_MASK _BV(PD1)
#define EIMSK_BIT _BV(INT1)
#define EICRx_BIT (~(_BV(ISC10) | _BV(ISC11)))
#define SERIAL_PIN_INTERRUPT INT1_vect
#elif SOFT_SERIAL_PIN == D2
#define SERIAL_PIN_MASK _BV(PD2)
#define EIMSK_BIT _BV(INT2)
#define EICRx_BIT (~(_BV(ISC20) | _BV(ISC21)))
#define SERIAL_PIN_INTERRUPT INT2_vect
#elif SOFT_SERIAL_PIN == D3
#define SERIAL_PIN_MASK _BV(PD3)
#define EIMSK_BIT _BV(INT3)
#define EICRx_BIT (~(_BV(ISC30) | _BV(ISC31)))
#define SERIAL_PIN_INTERRUPT INT3_vect
#endif
#elif SOFT_SERIAL_PIN == E6
#define SERIAL_PIN_DDR DDRE
#define SERIAL_PIN_PORT PORTE
#define SERIAL_PIN_INPUT PINE
#define SERIAL_PIN_MASK _BV(PE6)
#define EIMSK_BIT _BV(INT6)
#define EICRx_BIT (~(_BV(ISC60) | _BV(ISC61)))
#define SERIAL_PIN_INTERRUPT INT6_vect
#else
#error invalid SOFT_SERIAL_PIN value
#endif
#else
#error serial.c now support ATmega32U4 only
#endif
#ifndef SERIAL_USE_MULTI_TRANSACTION
/* --- USE Simple API (OLD API, compatible with let's split serial.c) */
@ -42,16 +91,20 @@ SSTD_t transactions[] = {
};
void serial_master_init(void)
{ soft_serial_initiator_init(transactions); }
{ soft_serial_initiator_init(transactions, TID_LIMIT(transactions)); }
void serial_slave_init(void)
{ soft_serial_target_init(transactions); }
{ soft_serial_target_init(transactions, TID_LIMIT(transactions)); }
// 0 => no error
// 1 => slave did not respond
// 2 => checksum error
int serial_update_buffers()
{ return soft_serial_transaction(); }
{
int result;
result = soft_serial_transaction();
return result;
}
#endif // Simple API (OLD API, compatible with let's split serial.c)
@ -59,39 +112,66 @@ int serial_update_buffers()
#define NO_INLINE __attribute__((noinline))
#define _delay_sub_us(x) __builtin_avr_delay_cycles(x)
// Serial pulse period in microseconds.
#define TID_SEND_ADJUST 14
// parity check
#define ODD_PARITY 1
#define EVEN_PARITY 0
#define PARITY EVEN_PARITY
#ifdef SERIAL_DELAY
// custom setup in config.h
// #define TID_SEND_ADJUST 2
// #define SERIAL_DELAY 6 // micro sec
// #define READ_WRITE_START_ADJUST 30 // cycles
// #define READ_WRITE_WIDTH_ADJUST 8 // cycles
#else
// ============ Standard setups ============
#ifndef SELECT_SOFT_SERIAL_SPEED
#define SELECT_SOFT_SERIAL_SPEED 1
// 0: about 189kbps
// 1: about 137kbps (default)
// 2: about 75kbps
// 3: about 39kbps
// 4: about 26kbps
// 5: about 20kbps
#endif
#define TID_SEND_ADJUST 2
#define SELECT_SERIAL_SPEED 1
#if SELECT_SERIAL_SPEED == 0
#if SELECT_SOFT_SERIAL_SPEED == 0
// Very High speed
#define SERIAL_DELAY 4 // micro sec
#define READ_WRITE_START_ADJUST 33 // cycles
#define READ_WRITE_WIDTH_ADJUST 3 // cycles
#elif SELECT_SERIAL_SPEED == 1
#define READ_WRITE_WIDTH_ADJUST 6 // cycles
#elif SELECT_SOFT_SERIAL_SPEED == 1
// High speed
#define SERIAL_DELAY 6 // micro sec
#define READ_WRITE_START_ADJUST 30 // cycles
#define READ_WRITE_WIDTH_ADJUST 3 // cycles
#elif SELECT_SERIAL_SPEED == 2
#define READ_WRITE_WIDTH_ADJUST 7 // cycles
#elif SELECT_SOFT_SERIAL_SPEED == 2
// Middle speed
#define SERIAL_DELAY 12 // micro sec
#define READ_WRITE_START_ADJUST 30 // cycles
#define READ_WRITE_WIDTH_ADJUST 3 // cycles
#elif SELECT_SERIAL_SPEED == 3
#define READ_WRITE_WIDTH_ADJUST 7 // cycles
#elif SELECT_SOFT_SERIAL_SPEED == 3
// Low speed
#define SERIAL_DELAY 24 // micro sec
#define READ_WRITE_START_ADJUST 30 // cycles
#define READ_WRITE_WIDTH_ADJUST 3 // cycles
#elif SELECT_SERIAL_SPEED == 4
#define READ_WRITE_WIDTH_ADJUST 7 // cycles
#elif SELECT_SOFT_SERIAL_SPEED == 4
// Very Low speed
#define SERIAL_DELAY 50 // micro sec
#define SERIAL_DELAY 36 // micro sec
#define READ_WRITE_START_ADJUST 30 // cycles
#define READ_WRITE_WIDTH_ADJUST 7 // cycles
#elif SELECT_SOFT_SERIAL_SPEED == 5
// Ultra Low speed
#define SERIAL_DELAY 48 // micro sec
#define READ_WRITE_START_ADJUST 30 // cycles
#define READ_WRITE_WIDTH_ADJUST 3 // cycles
#define READ_WRITE_WIDTH_ADJUST 7 // cycles
#else
#error Illegal Serial Speed
#endif
#error invalid SELECT_SOFT_SERIAL_SPEED value
#endif /* SELECT_SOFT_SERIAL_SPEED */
#endif /* SERIAL_DELAY */
#define SERIAL_DELAY_HALF1 (SERIAL_DELAY/2)
#define SERIAL_DELAY_HALF2 (SERIAL_DELAY - SERIAL_DELAY/2)
@ -105,6 +185,7 @@ int serial_update_buffers()
#endif
static SSTD_t *Transaction_table = NULL;
static uint8_t Transaction_table_size = 0;
inline static
void serial_delay(void) {
@ -152,30 +233,28 @@ void serial_high(void) {
SERIAL_PIN_PORT |= SERIAL_PIN_MASK;
}
void soft_serial_initiator_init(SSTD_t *sstd_table)
void soft_serial_initiator_init(SSTD_t *sstd_table, int sstd_table_size)
{
Transaction_table = sstd_table;
Transaction_table_size = (uint8_t)sstd_table_size;
serial_output();
serial_high();
}
void soft_serial_target_init(SSTD_t *sstd_table)
void soft_serial_target_init(SSTD_t *sstd_table, int sstd_table_size)
{
Transaction_table = sstd_table;
Transaction_table_size = (uint8_t)sstd_table_size;
serial_input_with_pullup();
#if SERIAL_PIN_MASK == _BV(PD0)
// Enable INT0
EIMSK |= _BV(INT0);
// Trigger on falling edge of INT0
EICRA &= ~(_BV(ISC00) | _BV(ISC01));
#elif SERIAL_PIN_MASK == _BV(PD2)
// Enable INT2
EIMSK |= _BV(INT2);
// Trigger on falling edge of INT2
EICRA &= ~(_BV(ISC20) | _BV(ISC21));
// Enable INT0-INT3,INT6
EIMSK |= EIMSK_BIT;
#if SERIAL_PIN_MASK == _BV(PE6)
// Trigger on falling edge of INT6
EICRB &= EICRx_BIT;
#else
#error unknown SERIAL_PIN_MASK value
// Trigger on falling edge of INT0-INT3
EICRA &= EICRx_BIT;
#endif
}
@ -205,12 +284,12 @@ static uint8_t serial_read_chunk(uint8_t *pterrcount, uint8_t bit) {
uint8_t byte, i, p, pb;
_delay_sub_us(READ_WRITE_START_ADJUST);
for( i = 0, byte = 0, p = 0; i < bit; i++ ) {
for( i = 0, byte = 0, p = PARITY; i < bit; i++ ) {
serial_delay_half1(); // read the middle of pulses
if( serial_read_pin() ) {
byte = (byte << 1) | 1; p ^= 1;
byte = (byte << 1) | 1; p ^= 1;
} else {
byte = (byte << 1) | 0; p ^= 0;
byte = (byte << 1) | 0; p ^= 0;
}
_delay_sub_us(READ_WRITE_WIDTH_ADJUST);
serial_delay_half2();
@ -230,13 +309,13 @@ static uint8_t serial_read_chunk(uint8_t *pterrcount, uint8_t bit) {
void serial_write_chunk(uint8_t data, uint8_t bit) NO_INLINE;
void serial_write_chunk(uint8_t data, uint8_t bit) {
uint8_t b, p;
for( p = 0, b = 1<<(bit-1); b ; b >>= 1) {
if(data & b) {
serial_high(); p ^= 1;
} else {
serial_low(); p ^= 0;
}
serial_delay();
for( p = PARITY, b = 1<<(bit-1); b ; b >>= 1) {
if(data & b) {
serial_high(); p ^= 1;
} else {
serial_low(); p ^= 0;
}
serial_delay();
}
/* send parity bit */
if(p & 1) { serial_high(); }
@ -288,6 +367,13 @@ void change_reciver2sender(void) {
serial_delay_half1(); //4
}
static inline uint8_t nibble_bits_count(uint8_t bits)
{
bits = (bits & 0x5) + (bits >> 1 & 0x5);
bits = (bits & 0x3) + (bits >> 2 & 0x3);
return bits;
}
// interrupt handle to be used by the target device
ISR(SERIAL_PIN_INTERRUPT) {
@ -297,12 +383,15 @@ ISR(SERIAL_PIN_INTERRUPT) {
SSTD_t *trans = Transaction_table;
#else
// recive transaction table index
uint8_t tid;
uint8_t tid, bits;
uint8_t pecount = 0;
sync_recv();
tid = serial_read_chunk(&pecount,4);
if(pecount> 0)
bits = serial_read_chunk(&pecount,7);
tid = bits>>3;
bits = (bits&7) != nibble_bits_count(tid);
if( bits || pecount> 0 || tid > Transaction_table_size ) {
return;
}
serial_delay_half1();
serial_high(); // response step1 low->high
@ -315,17 +404,17 @@ ISR(SERIAL_PIN_INTERRUPT) {
// target send phase
if( trans->target2initiator_buffer_size > 0 )
serial_send_packet((uint8_t *)trans->target2initiator_buffer,
trans->target2initiator_buffer_size);
trans->target2initiator_buffer_size);
// target switch to input
change_sender2reciver();
// target recive phase
if( trans->initiator2target_buffer_size > 0 ) {
if (serial_recive_packet((uint8_t *)trans->initiator2target_buffer,
trans->initiator2target_buffer_size) ) {
*trans->status = TRANSACTION_ACCEPTED;
trans->initiator2target_buffer_size) ) {
*trans->status = TRANSACTION_ACCEPTED;
} else {
*trans->status = TRANSACTION_DATA_ERROR;
*trans->status = TRANSACTION_DATA_ERROR;
}
} else {
*trans->status = TRANSACTION_ACCEPTED;
@ -349,6 +438,8 @@ int soft_serial_transaction(void) {
SSTD_t *trans = Transaction_table;
#else
int soft_serial_transaction(int sstd_index) {
if( sstd_index > Transaction_table_size )
return TRANSACTION_TYPE_ERROR;
SSTD_t *trans = &Transaction_table[sstd_index];
#endif
cli();
@ -375,9 +466,10 @@ int soft_serial_transaction(int sstd_index) {
#else
// send transaction table index
int tid = (sstd_index<<3) | (7 & nibble_bits_count(sstd_index));
sync_send();
_delay_sub_us(TID_SEND_ADJUST);
serial_write_chunk(sstd_index, 4);
serial_write_chunk(tid, 7);
serial_delay_half1();
// wait for the target response (step1 low->high)
@ -389,12 +481,12 @@ int soft_serial_transaction(int sstd_index) {
// check if the target is present (step2 high->low)
for( int i = 0; serial_read_pin(); i++ ) {
if (i > SLAVE_INT_ACK_WIDTH + 1) {
// slave failed to pull the line low, assume not present
serial_output();
serial_high();
*trans->status = TRANSACTION_NO_RESPONSE;
sei();
return TRANSACTION_NO_RESPONSE;
// slave failed to pull the line low, assume not present
serial_output();
serial_high();
*trans->status = TRANSACTION_NO_RESPONSE;
sei();
return TRANSACTION_NO_RESPONSE;
}
_delay_sub_us(SLAVE_INT_ACK_WIDTH_UNIT);
}
@ -404,12 +496,12 @@ int soft_serial_transaction(int sstd_index) {
// if the target is present syncronize with it
if( trans->target2initiator_buffer_size > 0 ) {
if (!serial_recive_packet((uint8_t *)trans->target2initiator_buffer,
trans->target2initiator_buffer_size) ) {
serial_output();
serial_high();
*trans->status = TRANSACTION_DATA_ERROR;
sei();
return TRANSACTION_DATA_ERROR;
trans->target2initiator_buffer_size) ) {
serial_output();
serial_high();
*trans->status = TRANSACTION_DATA_ERROR;
sei();
return TRANSACTION_DATA_ERROR;
}
}
@ -419,7 +511,7 @@ int soft_serial_transaction(int sstd_index) {
// initiator send phase
if( trans->initiator2target_buffer_size > 0 ) {
serial_send_packet((uint8_t *)trans->initiator2target_buffer,
trans->initiator2target_buffer_size);
trans->initiator2target_buffer_size);
}
// always, release the line when not in use
@ -442,3 +534,9 @@ int soft_serial_get_and_clean_status(int sstd_index) {
#endif
#endif
// Helix serial.c history
// 2018-1-29 fork from let's split (#2308)
// 2018-6-28 bug fix master to slave comm (#3255)
// 2018-8-11 improvements (#3608)
// 2018-10-21 fix serial and RGB animation conflict (#4191)

22
keyboards/helix/serial.h
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@ -4,14 +4,16 @@
#include <stdbool.h>
// /////////////////////////////////////////////////////////////////
// Need Soft Serial defines in serial_config.h
// Need Soft Serial defines in config.h
// /////////////////////////////////////////////////////////////////
// ex.
// #define SERIAL_PIN_DDR DDRD
// #define SERIAL_PIN_PORT PORTD
// #define SERIAL_PIN_INPUT PIND
// #define SERIAL_PIN_MASK _BV(PD?) ?=0,2
// #define SERIAL_PIN_INTERRUPT INT?_vect ?=0,2
// #define SOFT_SERIAL_PIN ?? // ?? = D0,D1,D2,D3,E6
// OPTIONAL: #define SELECT_SOFT_SERIAL_SPEED ? // ? = 1,2,3,4,5
// // 1: about 137kbps (default)
// // 2: about 75kbps
// // 3: about 39kbps
// // 4: about 26kbps
// // 5: about 20kbps
//
// //// USE Simple API (OLD API, compatible with let's split serial.c)
// ex.
@ -47,16 +49,18 @@ typedef struct _SSTD_t {
uint8_t target2initiator_buffer_size;
uint8_t *target2initiator_buffer;
} SSTD_t;
#define TID_LIMIT( table ) (sizeof(table) / sizeof(SSTD_t))
// initiator is transaction start side
void soft_serial_initiator_init(SSTD_t *sstd_table);
void soft_serial_initiator_init(SSTD_t *sstd_table, int sstd_table_size);
// target is interrupt accept side
void soft_serial_target_init(SSTD_t *sstd_table);
void soft_serial_target_init(SSTD_t *sstd_table, int sstd_table_size);
// initiator resullt
#define TRANSACTION_END 0
#define TRANSACTION_NO_RESPONSE 0x1
#define TRANSACTION_DATA_ERROR 0x2
#define TRANSACTION_TYPE_ERROR 0x4
#ifndef SERIAL_USE_MULTI_TRANSACTION
int soft_serial_transaction(void);
#else
@ -72,7 +76,7 @@ int soft_serial_transaction(int sstd_index);
// target:
// TRANSACTION_DATA_ERROR
// or TRANSACTION_ACCEPTED
#define TRANSACTION_ACCEPTED 0x4
#define TRANSACTION_ACCEPTED 0x8
#ifdef SERIAL_USE_MULTI_TRANSACTION
int soft_serial_get_and_clean_status(int sstd_index);
#endif

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