Relocate PS2 code (#14895)

* Relocate ps2 protocol code

* clang

* Move makefile logic

1 files changed, 0 insertions, 340 deletions

diff --git a/tmk_core/protocol/ps2_interrupt.c b/tmk_core/protocol/ps2_interrupt.c
deleted file mode 100644
index 70debd02f..000000000
--- a/tmk_core/protocol/ps2_interrupt.c
+++ /dev/null
@@ -1,340 +0,0 @@
-/*
-Copyright 2010,2011,2012,2013 Jun WAKO <wakojun@gmail.com>
-
-This software is licensed with a Modified BSD License.
-All of this is supposed to be Free Software, Open Source, DFSG-free,
-GPL-compatible, and OK to use in both free and proprietary applications.
-Additions and corrections to this file are welcome.
-
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are met:
-
-* Redistributions of source code must retain the above copyright
-  notice, this list of conditions and the following disclaimer.
-
-* Redistributions in binary form must reproduce the above copyright
-  notice, this list of conditions and the following disclaimer in
-  the documentation and/or other materials provided with the
-  distribution.
-
-* Neither the name of the copyright holders nor the names of
-  contributors may be used to endorse or promote products derived
-  from this software without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
-LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
-CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
-SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
-CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-POSSIBILITY OF SUCH DAMAGE.
-*/
-
-/*
- * PS/2 protocol Pin interrupt version
- */
-
-#include <stdbool.h>
-
-#if defined(__AVR__)
-#    include <avr/interrupt.h>
-#elif defined(PROTOCOL_CHIBIOS)  // TODO: or STM32 ?
-// chibiOS headers
-#    include "ch.h"
-#    include "hal.h"
-#endif
-
-#include "ps2.h"
-#include "ps2_io.h"
-#include "print.h"
-#include "wait.h"
-
-#define WAIT(stat, us, err)     \
-    do {                        \
-        if (!wait_##stat(us)) { \
-            ps2_error = err;    \
-            goto ERROR;         \
-        }                       \
-    } while (0)
-
-uint8_t ps2_error = PS2_ERR_NONE;
-
-static inline uint8_t pbuf_dequeue(void);
-static inline void    pbuf_enqueue(uint8_t data);
-static inline bool    pbuf_has_data(void);
-static inline void    pbuf_clear(void);
-
-#if defined(PROTOCOL_CHIBIOS)
-void ps2_interrupt_service_routine(void);
-void palCallback(void *arg) { ps2_interrupt_service_routine(); }
-
-#    define PS2_INT_INIT()                                 \
-        { palSetLineMode(PS2_CLOCK_PIN, PAL_MODE_INPUT); } \
-        while (0)
-#    define PS2_INT_ON()                                                    \
-        {                                                                   \
-            palEnableLineEvent(PS2_CLOCK_PIN, PAL_EVENT_MODE_FALLING_EDGE); \
-            palSetLineCallback(PS2_CLOCK_PIN, palCallback, NULL);           \
-        }                                                                   \
-        while (0)
-#    define PS2_INT_OFF()                       \
-        { palDisableLineEvent(PS2_CLOCK_PIN); } \
-        while (0)
-#endif  // PROTOCOL_CHIBIOS
-
-void ps2_host_init(void) {
-    idle();
-    PS2_INT_INIT();
-    PS2_INT_ON();
-    // POR(150-2000ms) plus BAT(300-500ms) may take 2.5sec([3]p.20)
-    // wait_ms(2500);
-}
-
-uint8_t ps2_host_send(uint8_t data) {
-    bool parity = true;
-    ps2_error   = PS2_ERR_NONE;
-
-    PS2_INT_OFF();
-
-    /* terminate a transmission if we have */
-    inhibit();
-    wait_us(100);  // 100us [4]p.13, [5]p.50
-
-    /* 'Request to Send' and Start bit */
-    data_lo();
-    clock_hi();
-    WAIT(clock_lo, 10000, 10);  // 10ms [5]p.50
-
-    /* Data bit[2-9] */
-    for (uint8_t i = 0; i < 8; i++) {
-        if (data & (1 << i)) {
-            parity = !parity;
-            data_hi();
-        } else {
-            data_lo();
-        }
-        WAIT(clock_hi, 50, 2);
-        WAIT(clock_lo, 50, 3);
-    }
-
-    /* Parity bit */
-    wait_us(15);
-    if (parity) {
-        data_hi();
-    } else {
-        data_lo();
-    }
-    WAIT(clock_hi, 50, 4);
-    WAIT(clock_lo, 50, 5);
-
-    /* Stop bit */
-    wait_us(15);
-    data_hi();
-
-    /* Ack */
-    WAIT(data_lo, 50, 6);
-    WAIT(clock_lo, 50, 7);
-
-    /* wait for idle state */
-    WAIT(clock_hi, 50, 8);
-    WAIT(data_hi, 50, 9);
-
-    idle();
-    PS2_INT_ON();
-    return ps2_host_recv_response();
-ERROR:
-    idle();
-    PS2_INT_ON();
-    return 0;
-}
-
-uint8_t ps2_host_recv_response(void) {
-    // Command may take 25ms/20ms at most([5]p.46, [3]p.21)
-    uint8_t retry = 25;
-    while (retry-- && !pbuf_has_data()) {
-        wait_ms(1);
-    }
-    return pbuf_dequeue();
-}
-
-/* get data received by interrupt */
-uint8_t ps2_host_recv(void) {
-    if (pbuf_has_data()) {
-        ps2_error = PS2_ERR_NONE;
-        return pbuf_dequeue();
-    } else {
-        ps2_error = PS2_ERR_NODATA;
-        return 0;
-    }
-}
-
-void ps2_interrupt_service_routine(void) {
-    static enum {
-        INIT,
-        START,
-        BIT0,
-        BIT1,
-        BIT2,
-        BIT3,
-        BIT4,
-        BIT5,
-        BIT6,
-        BIT7,
-        PARITY,
-        STOP,
-    } state               = INIT;
-    static uint8_t data   = 0;
-    static uint8_t parity = 1;
-
-    // TODO: abort if elapse 100us from previous interrupt
-
-    // return unless falling edge
-    if (clock_in()) {
-        goto RETURN;
-    }
-
-    state++;
-    switch (state) {
-        case START:
-            if (data_in()) goto ERROR;
-            break;
-        case BIT0:
-        case BIT1:
-        case BIT2:
-        case BIT3:
-        case BIT4:
-        case BIT5:
-        case BIT6:
-        case BIT7:
-            data >>= 1;
-            if (data_in()) {
-                data |= 0x80;
-                parity++;
-            }
-            break;
-        case PARITY:
-            if (data_in()) {
-                if (!(parity & 0x01)) goto ERROR;
-            } else {
-                if (parity & 0x01) goto ERROR;
-            }
-            break;
-        case STOP:
-            if (!data_in()) goto ERROR;
-            pbuf_enqueue(data);
-            goto DONE;
-            break;
-        default:
-            goto ERROR;
-    }
-    goto RETURN;
-ERROR:
-    ps2_error = state;
-DONE:
-    state  = INIT;
-    data   = 0;
-    parity = 1;
-RETURN:
-    return;
-}
-
-#if defined(__AVR__)
-ISR(PS2_INT_VECT) { ps2_interrupt_service_routine(); }
-#endif
-
-/* send LED state to keyboard */
-void ps2_host_set_led(uint8_t led) {
-    ps2_host_send(0xED);
-    ps2_host_send(led);
-}
-
-/*--------------------------------------------------------------------
- * Ring buffer to store scan codes from keyboard
- *------------------------------------------------------------------*/
-#define PBUF_SIZE 32
-static uint8_t     pbuf[PBUF_SIZE];
-static uint8_t     pbuf_head = 0;
-static uint8_t     pbuf_tail = 0;
-static inline void pbuf_enqueue(uint8_t data) {
-#if defined(__AVR__)
-    uint8_t sreg = SREG;
-    cli();
-#elif defined(PROTOCOL_CHIBIOS)
-    chSysLockFromISR();
-#endif
-
-    uint8_t next = (pbuf_head + 1) % PBUF_SIZE;
-    if (next != pbuf_tail) {
-        pbuf[pbuf_head] = data;
-        pbuf_head       = next;
-    } else {
-        print("pbuf: full\n");
-    }
-
-#if defined(__AVR__)
-    SREG = sreg;
-#elif defined(PROTOCOL_CHIBIOS)
-    chSysUnlockFromISR();
-#endif
-}
-static inline uint8_t pbuf_dequeue(void) {
-    uint8_t val = 0;
-
-#if defined(__AVR__)
-    uint8_t sreg = SREG;
-    cli();
-#elif defined(PROTOCOL_CHIBIOS)
-    chSysLock();
-#endif
-
-    if (pbuf_head != pbuf_tail) {
-        val       = pbuf[pbuf_tail];
-        pbuf_tail = (pbuf_tail + 1) % PBUF_SIZE;
-    }
-
-#if defined(__AVR__)
-    SREG = sreg;
-#elif defined(PROTOCOL_CHIBIOS)
-    chSysUnlock();
-#endif
-
-    return val;
-}
-static inline bool pbuf_has_data(void) {
-#if defined(__AVR__)
-    uint8_t sreg = SREG;
-    cli();
-#elif defined(PROTOCOL_CHIBIOS)
-    chSysLock();
-#endif
-
-    bool has_data = (pbuf_head != pbuf_tail);
-
-#if defined(__AVR__)
-    SREG = sreg;
-#elif defined(PROTOCOL_CHIBIOS)
-    chSysUnlock();
-#endif
-    return has_data;
-}
-static inline void pbuf_clear(void) {
-#if defined(__AVR__)
-    uint8_t sreg = SREG;
-    cli();
-#elif defined(PROTOCOL_CHIBIOS)
-    chSysLock();
-#endif
-
-    pbuf_head = pbuf_tail = 0;
-
-#if defined(__AVR__)
-    SREG = sreg;
-#elif defined(PROTOCOL_CHIBIOS)
-    chSysUnlock();
-#endif
-}