diff options
Diffstat (limited to 'board/cogent/kbm.h')
| -rw-r--r-- | board/cogent/kbm.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/board/cogent/kbm.h b/board/cogent/kbm.h new file mode 100644 index 0000000..7eb419c --- /dev/null +++ b/board/cogent/kbm.h @@ -0,0 +1,79 @@ +/* keyboard/mouse not implemented yet */ + +extern int cma_kbm_not_implemented; + +/**************** DEFINES for H8542B Keyboard/Mouse Controller ***************/ + +/* + * note the auxillary port is used to control the mouse + */ + +/* 8542B Commands (Sent to the Command Port) */ +#define HT8542_CMD_SET_BYTE 0x60 /* Set the command byte */ +#define HT8542_CMD_GET_BYTE 0x20 /* Get the command byte */ +#define HT8542_CMD_KBD_OBUFF 0xD2 /* Write to HT8542 Kbd Output Buffer */ +#define HT8542_CMD_AUX_OBUFF 0xD3 /* Write to HT8542 Mse Output Buffer */ +#define HT8542_CMD_AUX_WRITE 0xD4 /* Write to Mouse Port */ +#define HT8542_CMD_AUX_OFF 0xA7 /* Disable Mouse Port */ +#define HT8542_CMD_AUX_ON 0xA8 /* Re-Enable Mouse Port */ +#define HT8542_CMD_AUX_TEST 0xA9 /* Test for the presence of a Mouse */ +#define HT8542_CMD_DIAG 0xAA /* Start Diagnostics */ +#define HT8542_CMD_KBD_TEST 0xAB /* Test for presence of a keyboard */ +#define HT8542_CMD_KBD_OFF 0xAD /* Disable Kbd Port (use KBD_DAT_ON) */ +#define HT8542_CMD_KBD_ON 0xAE /* Enable Kbd Port (use KBD_DAT_OFF) */ + +/* HT8542B cmd byte set by KBD_CMD_SET_BYTE and retrieved by KBD_CMD_GET_BYTE */ +#define HT8542_CMD_BYTE_TRANS 0x40 +#define HT8542_CMD_BYTE_AUX_OFF 0x20 /* 1 = mse port disabled, 0 = enabled */ +#define HT8542_CMD_BYTE_KBD_OFF 0x10 /* 1 = kbd port disabled, 0 = enabled */ +#define HT8542_CMD_BYTE_OVER 0x08 /* 1 = override keyboard lock */ +#define HT8542_CMD_BYTE_RES 0x04 /* reserved */ +#define HT8542_CMD_BYTE_AUX_INT 0x02 /* 1 = enable mouse interrupt */ +#define HT8542_CMD_BYTE_KBD_INT 0x01 /* 1 = enable keyboard interrupt */ + +/* Keyboard Commands (Sent to the Data Port) */ +#define KBD_CMD_LED 0xED /* Set Keyboard LEDS with next byte */ +#define KBD_CMD_ECHO 0xEE /* Echo - we get 0xFA, 0xEE back */ +#define KBD_CMD_MODE 0xF0 /* set scan code mode with next byte */ +#define KBD_CMD_ID 0xF2 /* get keyboard/mouse ID */ +#define KBD_CMD_RPT 0xF3 /* Set Repeat Rate and Delay 2nd Byte */ +#define KBD_CMD_ON 0xF4 /* Enable keyboard */ +#define KBD_CMD_OFF 0xF5 /* Disables Scanning, Resets to Def */ +#define KBD_CMD_DEF 0xF6 /* Reverts kbd to default settings */ +#define KBD_CMD_RST 0xFF /* Reset - should get 0xFA, 0xAA back */ + +/* Set LED second bit defines */ +#define KBD_CMD_LED_SCROLL 0x01 /* Set SCROLL LOCK LED on */ +#define KBD_CMD_LED_NUM 0x02 /* Set NUM LOCK LED on */ +#define KBD_CMD_LED_CAPS 0x04 /* Set CAPS LOCK LED on */ + +/* Set Mode second byte defines */ +#define KBD_CMD_MODE_STAT 0x00 /* get current scan code mode */ +#define KBD_CMD_MODE_SCAN1 0x01 /* set mode to scan code 1 */ +#define KBD_CMD_MODE_SCAN2 0x02 /* set mode to scan code 2 */ +#define KBD_CMD_MODE_SCAN3 0x03 /* set mode to scan code 3 */ + +/* Keyboard/Mouse ID Codes */ +#define KBD_CMD_ID_1ST 0xAB /* 1st byte is 0xAB, 2nd is actual ID */ +#define KBD_CMD_ID_KBD 0x83 /* Keyboard */ +#define KBD_CMD_ID_MOUSE 0x00 /* Mouse */ + +/* Keyboard Data Return Defines */ +#define KBD_STAT_OVER 0x00 /* Buffer Overrun */ +#define KBD_STAT_DIAG_OK 0x55 /* Internal Self Test OK */ +#define KBD_STAT_RST_OK 0xAA /* Reset Complete */ +#define KBD_STAT_ECHO 0xEE /* Echo Command Return */ +#define KBD_STAT_BRK 0xF0 /* Prefix for Break Key Code */ +#define KBD_STAT_ACK 0xFA /* Received after all commands */ +#define KBD_STAT_DIAG_FAIL 0xFD /* Internal Self Test Failed */ +#define KBD_STAT_RESEND 0xFE /* Resend Last Command */ + +/* HT8542B Status Register Bit Defines */ +#define HT8542_STAT_OBF 0x01 /* 1 = output buffer is full */ +#define HT8542_STAT_IBF 0x02 /* 1 = input buffer is full */ +#define HT8542_STAT_SYS 0x04 /* system flag - unused */ +#define HT8542_STAT_CMD 0x08 /* 1 = cmd in input buffer, 0 = data */ +#define HT8542_STAT_INH 0x10 /* 1 = Inhibit - unused */ +#define HT8542_STAT_TX 0x20 /* 1 = Transmit Timeout has occured */ +#define HT8542_STAT_RX 0x40 /* 1 = Receive Timeout has occured */ +#define HT8542_STAT_PERR 0x80 /* 1 = Parity Error from Keyboard */ |