1 files changed, 0 insertions, 110 deletions
diff --git a/protocol/ibm4704.h b/protocol/ibm4704.h
deleted file mode 100644
index 618cce6be0..0000000000
--- a/protocol/ibm4704.h
+++ /dev/null
@@ -1,110 +0,0 @@
-/*
-Copyright 2014 Jun WAKO <wakojun@gmail.com>
-*/
-#ifndef IBM4704_H
-#define IBM4704_H
-
-#define IBM4704_ERR_NONE        0
-#define IBM4704_ERR_PARITY      0x70
-
-
-void ibm4704_init(void);
-uint8_t ibm4704_send(uint8_t data);
-uint8_t ibm4704_recv_response(void);
-uint8_t ibm4704_recv(void);
-
-
-/* Check pin configuration */
-#if !(defined(IBM4704_CLOCK_PORT) && \
-      defined(IBM4704_CLOCK_PIN) && \
-      defined(IBM4704_CLOCK_DDR) && \
-      defined(IBM4704_CLOCK_BIT))
-#   error "ibm4704 clock pin configuration is required in config.h"
-#endif
-
-#if !(defined(IBM4704_DATA_PORT) && \
-      defined(IBM4704_DATA_PIN) && \
-      defined(IBM4704_DATA_DDR) && \
-      defined(IBM4704_DATA_BIT))
-#   error "ibm4704 data pin configuration is required in config.h"
-#endif
-
-
-/*--------------------------------------------------------------------
- * static functions
- *------------------------------------------------------------------*/
-static inline void clock_lo(void)
-{
-    IBM4704_CLOCK_PORT &= ~(1<<IBM4704_CLOCK_BIT);
-    IBM4704_CLOCK_DDR  |=  (1<<IBM4704_CLOCK_BIT);
-}
-static inline void clock_hi(void)
-{
-    /* input with pull up */
-    IBM4704_CLOCK_DDR  &= ~(1<<IBM4704_CLOCK_BIT);
-    IBM4704_CLOCK_PORT |=  (1<<IBM4704_CLOCK_BIT);
-}
-static inline bool clock_in(void)
-{
-    IBM4704_CLOCK_DDR  &= ~(1<<IBM4704_CLOCK_BIT);
-    IBM4704_CLOCK_PORT |=  (1<<IBM4704_CLOCK_BIT);
-    _delay_us(1);
-    return IBM4704_CLOCK_PIN&(1<<IBM4704_CLOCK_BIT);
-}
-static inline void data_lo(void)
-{
-    IBM4704_DATA_PORT &= ~(1<<IBM4704_DATA_BIT);
-    IBM4704_DATA_DDR  |=  (1<<IBM4704_DATA_BIT);
-}
-static inline void data_hi(void)
-{
-    /* input with pull up */
-    IBM4704_DATA_DDR  &= ~(1<<IBM4704_DATA_BIT);
-    IBM4704_DATA_PORT |=  (1<<IBM4704_DATA_BIT);
-}
-static inline bool data_in(void)
-{
-    IBM4704_DATA_DDR  &= ~(1<<IBM4704_DATA_BIT);
-    IBM4704_DATA_PORT |=  (1<<IBM4704_DATA_BIT);
-    _delay_us(1);
-    return IBM4704_DATA_PIN&(1<<IBM4704_DATA_BIT);
-}
-
-static inline uint16_t wait_clock_lo(uint16_t us)
-{
-    while (clock_in()  && us) { asm(""); _delay_us(1); us--; }
-    return us;
-}
-static inline uint16_t wait_clock_hi(uint16_t us)
-{
-    while (!clock_in() && us) { asm(""); _delay_us(1); us--; }
-    return us;
-}
-static inline uint16_t wait_data_lo(uint16_t us)
-{
-    while (data_in() && us)  { asm(""); _delay_us(1); us--; }
-    return us;
-}
-static inline uint16_t wait_data_hi(uint16_t us)
-{
-    while (!data_in() && us)  { asm(""); _delay_us(1); us--; }
-    return us;
-}
-
-/* idle state that device can send */
-static inline void idle(void)
-{
-    clock_hi();
-    data_hi();
-}
-
-/* inhibit device to send 
- * keyboard checks Data line on start bit(Data:hi) and it stops sending if Data line is low.
- */
-static inline void inhibit(void)
-{
-    clock_hi();
-    data_lo();
-}
-
-#endif