Update split serial code to use driver pattern (#7990)

* Move avr serial code to drivers

* Update src+= serial.c to driver pattern

2 files changed, 0 insertions, 570 deletions

diff --git a/quantum/split_common/serial.c b/quantum/split_common/serial.c
deleted file mode 100644
index c27cbfdd0..000000000
--- a/quantum/split_common/serial.c
+++ /dev/null
@@ -1,508 +0,0 @@
-/*
- * WARNING: be careful changing this code, it is very timing dependent
- *
- * 2018-10-28 checked
- *  avr-gcc 4.9.2
- *  avr-gcc 5.4.0
- *  avr-gcc 7.3.0
- */
-
-#ifndef F_CPU
-#    define F_CPU 16000000
-#endif
-
-#include <avr/io.h>
-#include <avr/interrupt.h>
-#include <util/delay.h>
-#include <stddef.h>
-#include <stdbool.h>
-#include "serial.h"
-
-#ifdef SOFT_SERIAL_PIN
-
-#    ifdef __AVR_ATmega32U4__
-// if using ATmega32U4 I2C, can not use PD0 and PD1 in soft serial.
-#        ifdef USE_AVR_I2C
-#            if SOFT_SERIAL_PIN == D0 || SOFT_SERIAL_PIN == D1
-#                error Using ATmega32U4 I2C, so can not use PD0, PD1
-#            endif
-#        endif
-
-#        define setPinInputHigh(pin) (DDRx_ADDRESS(pin) &= ~_BV((pin)&0xF), PORTx_ADDRESS(pin) |= _BV((pin)&0xF))
-#        define setPinOutput(pin) (DDRx_ADDRESS(pin) |= _BV((pin)&0xF))
-#        define writePinHigh(pin) (PORTx_ADDRESS(pin) |= _BV((pin)&0xF))
-#        define writePinLow(pin) (PORTx_ADDRESS(pin) &= ~_BV((pin)&0xF))
-#        define readPin(pin) ((bool)(PINx_ADDRESS(pin) & _BV((pin)&0xF)))
-
-#        if SOFT_SERIAL_PIN >= D0 && SOFT_SERIAL_PIN <= D3
-#            if SOFT_SERIAL_PIN == D0
-#                define EIMSK_BIT _BV(INT0)
-#                define EICRx_BIT (~(_BV(ISC00) | _BV(ISC01)))
-#                define SERIAL_PIN_INTERRUPT INT0_vect
-#            elif SOFT_SERIAL_PIN == D1
-#                define EIMSK_BIT _BV(INT1)
-#                define EICRx_BIT (~(_BV(ISC10) | _BV(ISC11)))
-#                define SERIAL_PIN_INTERRUPT INT1_vect
-#            elif SOFT_SERIAL_PIN == D2
-#                define EIMSK_BIT _BV(INT2)
-#                define EICRx_BIT (~(_BV(ISC20) | _BV(ISC21)))
-#                define SERIAL_PIN_INTERRUPT INT2_vect
-#            elif SOFT_SERIAL_PIN == D3
-#                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 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
-
-#    define ALWAYS_INLINE __attribute__((always_inline))
-#    define NO_INLINE __attribute__((noinline))
-#    define _delay_sub_us(x) __builtin_avr_delay_cycles(x)
-
-// 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 (Experimental only)
-//  1: about 137kbps (default)
-//  2: about 75kbps
-//  3: about 39kbps
-//  4: about 26kbps
-//  5: about 20kbps
-#        endif
-
-#        if __GNUC__ < 6
-#            define TID_SEND_ADJUST 14
-#        else
-#            define TID_SEND_ADJUST 2
-#        endif
-
-#        if SELECT_SOFT_SERIAL_SPEED == 0
-// Very High speed
-#            define SERIAL_DELAY 4  // micro sec
-#            if __GNUC__ < 6
-#                define READ_WRITE_START_ADJUST 33  // cycles
-#                define READ_WRITE_WIDTH_ADJUST 3   // cycles
-#            else
-#                define READ_WRITE_START_ADJUST 34  // cycles
-#                define READ_WRITE_WIDTH_ADJUST 7   // cycles
-#            endif
-#        elif SELECT_SOFT_SERIAL_SPEED == 1
-// High speed
-#            define SERIAL_DELAY 6  // micro sec
-#            if __GNUC__ < 6
-#                define READ_WRITE_START_ADJUST 30  // cycles
-#                define READ_WRITE_WIDTH_ADJUST 3   // cycles
-#            else
-#                define READ_WRITE_START_ADJUST 33  // cycles
-#                define READ_WRITE_WIDTH_ADJUST 7   // cycles
-#            endif
-#        elif SELECT_SOFT_SERIAL_SPEED == 2
-// Middle speed
-#            define SERIAL_DELAY 12             // micro sec
-#            define READ_WRITE_START_ADJUST 30  // cycles
-#            if __GNUC__ < 6
-#                define READ_WRITE_WIDTH_ADJUST 3  // cycles
-#            else
-#                define READ_WRITE_WIDTH_ADJUST 7  // cycles
-#            endif
-#        elif SELECT_SOFT_SERIAL_SPEED == 3
-// Low speed
-#            define SERIAL_DELAY 24             // micro sec
-#            define READ_WRITE_START_ADJUST 30  // cycles
-#            if __GNUC__ < 6
-#                define READ_WRITE_WIDTH_ADJUST 3  // cycles
-#            else
-#                define READ_WRITE_WIDTH_ADJUST 7  // cycles
-#            endif
-#        elif SELECT_SOFT_SERIAL_SPEED == 4
-// Very Low speed
-#            define SERIAL_DELAY 36             // micro sec
-#            define READ_WRITE_START_ADJUST 30  // cycles
-#            if __GNUC__ < 6
-#                define READ_WRITE_WIDTH_ADJUST 3  // cycles
-#            else
-#                define READ_WRITE_WIDTH_ADJUST 7  // cycles
-#            endif
-#        elif SELECT_SOFT_SERIAL_SPEED == 5
-// Ultra Low speed
-#            define SERIAL_DELAY 48             // micro sec
-#            define READ_WRITE_START_ADJUST 30  // cycles
-#            if __GNUC__ < 6
-#                define READ_WRITE_WIDTH_ADJUST 3  // cycles
-#            else
-#                define READ_WRITE_WIDTH_ADJUST 7  // cycles
-#            endif
-#        else
-#            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)
-
-#    define SLAVE_INT_WIDTH_US 1
-#    ifndef SERIAL_USE_MULTI_TRANSACTION
-#        define SLAVE_INT_RESPONSE_TIME SERIAL_DELAY
-#    else
-#        define SLAVE_INT_ACK_WIDTH_UNIT 2
-#        define SLAVE_INT_ACK_WIDTH 4
-#    endif
-
-static SSTD_t *Transaction_table      = NULL;
-static uint8_t Transaction_table_size = 0;
-
-inline static void serial_delay(void) ALWAYS_INLINE;
-inline static void serial_delay(void) { _delay_us(SERIAL_DELAY); }
-
-inline static void serial_delay_half1(void) ALWAYS_INLINE;
-inline static void serial_delay_half1(void) { _delay_us(SERIAL_DELAY_HALF1); }
-
-inline static void serial_delay_half2(void) ALWAYS_INLINE;
-inline static void serial_delay_half2(void) { _delay_us(SERIAL_DELAY_HALF2); }
-
-inline static void serial_output(void) ALWAYS_INLINE;
-inline static void serial_output(void) { setPinOutput(SOFT_SERIAL_PIN); }
-
-// make the serial pin an input with pull-up resistor
-inline static void serial_input_with_pullup(void) ALWAYS_INLINE;
-inline static void serial_input_with_pullup(void) { setPinInputHigh(SOFT_SERIAL_PIN); }
-
-inline static uint8_t serial_read_pin(void) ALWAYS_INLINE;
-inline static uint8_t serial_read_pin(void) { return !!readPin(SOFT_SERIAL_PIN); }
-
-inline static void serial_low(void) ALWAYS_INLINE;
-inline static void serial_low(void) { writePinLow(SOFT_SERIAL_PIN); }
-
-inline static void serial_high(void) ALWAYS_INLINE;
-inline static void serial_high(void) { writePinHigh(SOFT_SERIAL_PIN); }
-
-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, int sstd_table_size) {
-    Transaction_table      = sstd_table;
-    Transaction_table_size = (uint8_t)sstd_table_size;
-    serial_input_with_pullup();
-
-    // Enable INT0-INT3,INT6
-    EIMSK |= EIMSK_BIT;
-#    if SOFT_SERIAL_PIN == E6
-    // Trigger on falling edge of INT6
-    EICRB &= EICRx_BIT;
-#    else
-    // Trigger on falling edge of INT0-INT3
-    EICRA &= EICRx_BIT;
-#    endif
-}
-
-// Used by the sender to synchronize timing with the reciver.
-static void sync_recv(void) NO_INLINE;
-static void sync_recv(void) {
-    for (uint8_t i = 0; i < SERIAL_DELAY * 5 && serial_read_pin(); i++) {
-    }
-    // This shouldn't hang if the target disconnects because the
-    // serial line will float to high if the target does disconnect.
-    while (!serial_read_pin())
-        ;
-}
-
-// Used by the reciver to send a synchronization signal to the sender.
-static void sync_send(void) NO_INLINE;
-static void sync_send(void) {
-    serial_low();
-    serial_delay();
-    serial_high();
-}
-
-// Reads a byte from the serial line
-static uint8_t serial_read_chunk(uint8_t *pterrcount, uint8_t bit) NO_INLINE;
-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 = PARITY; i < bit; i++) {
-        serial_delay_half1();  // read the middle of pulses
-        if (serial_read_pin()) {
-            byte = (byte << 1) | 1;
-            p ^= 1;
-        } else {
-            byte = (byte << 1) | 0;
-            p ^= 0;
-        }
-        _delay_sub_us(READ_WRITE_WIDTH_ADJUST);
-        serial_delay_half2();
-    }
-    /* recive parity bit */
-    serial_delay_half1();  // read the middle of pulses
-    pb = serial_read_pin();
-    _delay_sub_us(READ_WRITE_WIDTH_ADJUST);
-    serial_delay_half2();
-
-    *pterrcount += (p != pb) ? 1 : 0;
-
-    return byte;
-}
-
-// Sends a byte with MSB ordering
-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 = 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();
-    } else {
-        serial_low();
-    }
-    serial_delay();
-
-    serial_low();  // sync_send() / senc_recv() need raise edge
-}
-
-static void serial_send_packet(uint8_t *buffer, uint8_t size) NO_INLINE;
-static void serial_send_packet(uint8_t *buffer, uint8_t size) {
-    for (uint8_t i = 0; i < size; ++i) {
-        uint8_t data;
-        data = buffer[i];
-        sync_send();
-        serial_write_chunk(data, 8);
-    }
-}
-
-static uint8_t serial_recive_packet(uint8_t *buffer, uint8_t size) NO_INLINE;
-static uint8_t serial_recive_packet(uint8_t *buffer, uint8_t size) {
-    uint8_t pecount = 0;
-    for (uint8_t i = 0; i < size; ++i) {
-        uint8_t data;
-        sync_recv();
-        data      = serial_read_chunk(&pecount, 8);
-        buffer[i] = data;
-    }
-    return pecount == 0;
-}
-
-inline static void change_sender2reciver(void) {
-    sync_send();                 // 0
-    serial_delay_half1();        // 1
-    serial_low();                // 2
-    serial_input_with_pullup();  // 2
-    serial_delay_half1();        // 3
-}
-
-inline static void change_reciver2sender(void) {
-    sync_recv();           // 0
-    serial_delay();        // 1
-    serial_low();          // 3
-    serial_output();       // 3
-    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) {
-#    ifndef SERIAL_USE_MULTI_TRANSACTION
-    serial_low();
-    serial_output();
-    SSTD_t *trans = Transaction_table;
-#    else
-    // recive transaction table index
-    uint8_t tid, bits;
-    uint8_t pecount = 0;
-    sync_recv();
-    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
-    serial_output();
-    _delay_sub_us(SLAVE_INT_ACK_WIDTH_UNIT * SLAVE_INT_ACK_WIDTH);
-    SSTD_t *trans = &Transaction_table[tid];
-    serial_low();  // response step2 ack high->low
-#    endif
-
-    // target send phase
-    if (trans->target2initiator_buffer_size > 0) serial_send_packet((uint8_t *)trans->target2initiator_buffer, 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;
-        } else {
-            *trans->status = TRANSACTION_DATA_ERROR;
-        }
-    } else {
-        *trans->status = TRANSACTION_ACCEPTED;
-    }
-
-    sync_recv();  // weit initiator output to high
-}
-
-/////////
-//  start transaction by initiator
-//
-// int  soft_serial_transaction(int sstd_index)
-//
-// Returns:
-//    TRANSACTION_END
-//    TRANSACTION_NO_RESPONSE
-//    TRANSACTION_DATA_ERROR
-// this code is very time dependent, so we need to disable interrupts
-#    ifndef SERIAL_USE_MULTI_TRANSACTION
-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();
-
-    // signal to the target that we want to start a transaction
-    serial_output();
-    serial_low();
-    _delay_us(SLAVE_INT_WIDTH_US);
-
-#    ifndef SERIAL_USE_MULTI_TRANSACTION
-    // wait for the target response
-    serial_input_with_pullup();
-    _delay_us(SLAVE_INT_RESPONSE_TIME);
-
-    // check if the target is present
-    if (serial_read_pin()) {
-        // target failed to pull the line low, assume not present
-        serial_output();
-        serial_high();
-        *trans->status = TRANSACTION_NO_RESPONSE;
-        sei();
-        return TRANSACTION_NO_RESPONSE;
-    }
-
-#    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(tid, 7);
-    serial_delay_half1();
-
-    // wait for the target response (step1 low->high)
-    serial_input_with_pullup();
-    while (!serial_read_pin()) {
-        _delay_sub_us(2);
-    }
-
-    // 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;
-        }
-        _delay_sub_us(SLAVE_INT_ACK_WIDTH_UNIT);
-    }
-#    endif
-
-    // initiator recive phase
-    // 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;
-        }
-    }
-
-    // initiator switch to output
-    change_reciver2sender();
-
-    // initiator send phase
-    if (trans->initiator2target_buffer_size > 0) {
-        serial_send_packet((uint8_t *)trans->initiator2target_buffer, trans->initiator2target_buffer_size);
-    }
-
-    // always, release the line when not in use
-    sync_send();
-
-    *trans->status = TRANSACTION_END;
-    sei();
-    return TRANSACTION_END;
-}
-
-#    ifdef SERIAL_USE_MULTI_TRANSACTION
-int soft_serial_get_and_clean_status(int sstd_index) {
-    SSTD_t *trans = &Transaction_table[sstd_index];
-    cli();
-    int retval     = *trans->status;
-    *trans->status = 0;
-    ;
-    sei();
-    return retval;
-}
-#    endif
-
-#endif
-
-// Helix serial.c history
-//   2018-1-29 fork from let's split and add PD2, modify sync_recv() (#2308, bceffdefc)
-//   2018-6-28 bug fix master to slave comm and speed up (#3255, 1038bbef4)
-//             (adjusted with avr-gcc 4.9.2)
-//   2018-7-13 remove USE_SERIAL_PD2 macro (#3374, f30d6dd78)
-//             (adjusted with avr-gcc 4.9.2)
-//   2018-8-11 add support multi-type transaction (#3608, feb5e4aae)
-//             (adjusted with avr-gcc 4.9.2)
-//   2018-10-21 fix serial and RGB animation conflict (#4191, 4665e4fff)
-//             (adjusted with avr-gcc 7.3.0)
-//   2018-10-28 re-adjust compiler depend value of delay (#4269, 8517f8a66)
-//             (adjusted with avr-gcc 5.4.0, 7.3.0)
-//   2018-12-17 copy to TOP/quantum/split_common/ and remove backward compatibility code (#4669)
diff --git a/quantum/split_common/serial.h b/quantum/split_common/serial.h
deleted file mode 100644
index 53e66cf90..000000000
--- a/quantum/split_common/serial.h
+++ /dev/null
@@ -1,62 +0,0 @@
-#pragma once
-
-#include <stdbool.h>
-
-// /////////////////////////////////////////////////////////////////
-// Need Soft Serial defines in config.h
-// /////////////////////////////////////////////////////////////////
-// ex.
-//  #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 (using signle-type transaction function)
-//   /* nothing */
-// //// USE flexible API (using multi-type transaction function)
-//   #define SERIAL_USE_MULTI_TRANSACTION
-//
-// /////////////////////////////////////////////////////////////////
-
-// 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;
-#define TID_LIMIT(table) (sizeof(table) / sizeof(SSTD_t))
-
-// initiator is transaction start side
-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, 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
-int soft_serial_transaction(int sstd_index);
-#endif
-
-// target status
-// *SSTD_t.status has
-//   initiator:
-//       TRANSACTION_END
-//    or TRANSACTION_NO_RESPONSE
-//    or TRANSACTION_DATA_ERROR
-//   target:
-//       TRANSACTION_DATA_ERROR
-//    or TRANSACTION_ACCEPTED
-#define TRANSACTION_ACCEPTED 0x8
-#ifdef SERIAL_USE_MULTI_TRANSACTION
-int soft_serial_get_and_clean_status(int sstd_index);
-#endif