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-rw-r--r--protocol/ibm4704.h110
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