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ibmpc_usb: C++ class for two-interface support

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This commit is contained in:
tmk 2021-07-04 22:01:38 +09:00
parent f4f47aaee7
commit e9dab95909
5 changed files with 1538 additions and 30 deletions
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79
converter/ibmpc_usb/config.h
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@ -53,56 +53,77 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
* Pin and interrupt configuration
*/
#if defined(__AVR_ATmega32U4__) || defined(__AVR_ATmega32U2__) || defined(__AVR_AT90USB1286__)
/* clock line */
// clock requires External Interrupt pin(INT*)
#define IBMPC_CLOCK_PORT PORTD
#define IBMPC_CLOCK_PIN PIND
#define IBMPC_CLOCK_DDR DDRD
#define IBMPC_CLOCK_BIT 1
/* data line */
#define IBMPC_DATA_PORT PORTD
#define IBMPC_DATA_PIN PIND
#define IBMPC_DATA_DDR DDRD
// primary interface
#define IBMPC_CLOCK_BIT 1
#define IBMPC_DATA_BIT 0
/* reset line */
#define IBMPC_RST_PORT PORTB
#define IBMPC_RST_PIN PINB
#define IBMPC_RST_DDR DDRB
#define IBMPC_RST_BIT1 6
#define IBMPC_RST_BIT2 7
/* reset for XT Type-1 keyboard: low pulse for 500ms */
#define IBMPC_RST_HIZ() do { \
IBMPC_RST_PORT &= ~(1<<IBMPC_RST_BIT1); \
IBMPC_RST_DDR &= ~(1<<IBMPC_RST_BIT1); \
IBMPC_RST_PORT &= ~(1<<IBMPC_RST_BIT2); \
IBMPC_RST_DDR &= ~(1<<IBMPC_RST_BIT2); \
} while (0)
#define IBMPC_RST_LO() do { \
IBMPC_RST_PORT &= ~(1<<IBMPC_RST_BIT1); \
IBMPC_RST_DDR |= (1<<IBMPC_RST_BIT1); \
IBMPC_RST_PORT &= ~(1<<IBMPC_RST_BIT2); \
IBMPC_RST_DDR |= (1<<IBMPC_RST_BIT2); \
} while (0)
/* interrupt for clock line */
#define IBMPC_INT_INIT() do { \
EICRA |= ((1<<ISC11) | \
(0<<ISC10)); \
} while (0)
/* NOTE: clear flag and enabling to ditch unwanted interrupt */
#define IBMPC_INT_ON() do { \
EIFR |= (1<<INTF1); \
EIMSK |= (1<<INT1); \
} while (0)
#define IBMPC_INT_OFF() do { \
EIMSK &= ~(1<<INT1); \
} while (0)
#define IBMPC_INT_VECT INT1_vect
// secondary interface
#ifdef IBMPC_SECONDARY
#define IBMPC_CLOCK_BIT1 3
#define IBMPC_DATA_BIT1 2
#define IBMPC_INT_INIT1() do { \
EICRA |= ((1<<ISC31) | \
(0<<ISC30)); \
} while (0)
#define IBMPC_INT_ON1() do { \
EIFR |= (1<<INTF3); \
EIMSK |= (1<<INT3); \
} while (0)
#define IBMPC_INT_OFF1() do { \
EIMSK &= ~(1<<INT3); \
} while (0)
#define IBMPC_INT_VECT1 INT3_vect
#endif
/* reset line */
#define IBMPC_RST_PORT PORTB
#define IBMPC_RST_PIN PINB
#define IBMPC_RST_DDR DDRB
#define IBMPC_RST_BIT0 6
#define IBMPC_RST_BIT1 7
/* reset for XT Type-1 keyboard: low pulse for 500ms */
#define IBMPC_RST_HIZ() do { \
IBMPC_RST_PORT &= ~(1<<IBMPC_RST_BIT0); \
IBMPC_RST_DDR &= ~(1<<IBMPC_RST_BIT0); \
IBMPC_RST_PORT &= ~(1<<IBMPC_RST_BIT1); \
IBMPC_RST_DDR &= ~(1<<IBMPC_RST_BIT1); \
} while (0)
#define IBMPC_RST_LO() do { \
IBMPC_RST_PORT &= ~(1<<IBMPC_RST_BIT0); \
IBMPC_RST_DDR |= (1<<IBMPC_RST_BIT0); \
IBMPC_RST_PORT &= ~(1<<IBMPC_RST_BIT1); \
IBMPC_RST_DDR |= (1<<IBMPC_RST_BIT1); \
} while (0)
// for debug
#define LED_ON() do { DDRD |= (1<<6); PORTD |= (1<<6); } while (0)
#define LED_OFF() do { DDRD |= (1<<6); PORTD &= ~(1<<6); } while (0)
#else
#error "No pin configuration in config.h"
#endif