diff options
Diffstat (limited to 'tmk_core/protocol/ibm4704.h')
| -rw-r--r-- | tmk_core/protocol/ibm4704.h | 103 | 
1 files changed, 0 insertions, 103 deletions
| diff --git a/tmk_core/protocol/ibm4704.h b/tmk_core/protocol/ibm4704.h deleted file mode 100644 index 4f88d148b3..0000000000 --- a/tmk_core/protocol/ibm4704.h +++ /dev/null @@ -1,103 +0,0 @@ -/* -Copyright 2014 Jun WAKO <[email protected]> -*/ - -#pragma once - -#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(); -} | 
