Subversion Repositories or1k_soc_on_altera_embedded_dev_kit

#if KBD_ENABLED

/*

 * keyboard controller registers

 */

#define KBD_STATUS_REG      (unsigned int) KBD_BASE_ADD+0x4

#define KBD_CNTL_REG        (unsigned int) KBD_BASE_ADD+0x4

#define KBD_DATA_REG        (unsigned int) KBD_BASE_ADD+0x0

/*

 * controller commands

 */

#define KBD_READ_MODE       (unsigned int) 0x20

#define KBD_WRITE_MODE      (unsigned int) 0x60

#define KBD_SELF_TEST       (unsigned int) 0xAA

#define KBD_SELF_TEST2      (unsigned int) 0xAB

#define KBD_CNTL_ENABLE     (unsigned int) 0xAE

/*

 * keyboard commands

 */

#define KBD_ENABLE          (unsigned int) 0xF4

#define KBD_DISABLE         (unsigned int) 0xF5

#define KBD_RESET           (unsigned int) 0xFF

/*

 * keyboard replies

 */

#define KBD_ACK             (unsigned int) 0xFA

#define KBD_POR             (unsigned int) 0xAA

/*

 * status register bits

 */

#define KBD_OBF             (unsigned int) 0x01

#define KBD_IBF             (unsigned int) 0x02

#define KBD_GTO             (unsigned int) 0x40

#define KBD_PERR            (unsigned int) 0x80

/*

 * keyboard controller mode register bits

 */

#define KBD_EKI             (unsigned int) 0x01

#define KBD_SYS             (unsigned int) 0x04

#define KBD_DMS             (unsigned int) 0x20

#define KBD_KCC             (unsigned int) 0x40

#define TIMEOUT_CONST   500000

extern volatile int kbd_tail;

extern volatile int kbd_head;

extern volatile int kbd_buf[KBDBUF_SIZE];

extern int kbd_init(void);

#endif /* KBD_ENABLED */