root / proj / kbc_macros.h @ 151
History | View | Annotate | Download (2.49 KB)
| 1 |
#ifndef KBC_MACROS_H_INCLUDED
|
|---|---|
| 2 |
#define KBC_MACROS_H_INCLUDED
|
| 3 |
|
| 4 |
/* KBC IRQ Line */
|
| 5 |
|
| 6 |
#define KBC_IRQ 1 /* @brief KBC Controller IRQ Line */ |
| 7 |
#define MOUSE_IRQ 12 /* @brief Mouse IRQ Line */ |
| 8 |
|
| 9 |
/* Delay for KBC */
|
| 10 |
#define DELAY 20000 /* @brief KBC Response Delay */ |
| 11 |
#define KBC_NUM_TRIES 20 /* @brief Number of tries to issue command before timeout */ |
| 12 |
|
| 13 |
/* I/O Ports Addresses */
|
| 14 |
|
| 15 |
#define KBC_CMD 0x64 /* @brief Address to send commands to KBC */ |
| 16 |
#define KBC_CMD_ARG 0x60 /* @brief Address to write KBC Command Arguments */ |
| 17 |
#define STATUS_REG 0x64 /* @brief KBC Status Register address */ |
| 18 |
|
| 19 |
#define OUTPUT_BUF 0x60 /* @brief Address of Output Buffer of KBC */ |
| 20 |
|
| 21 |
/* KBC Commands */
|
| 22 |
#define READ_KBC_CMD 0x20 /* @brief Read KBC Command Byte */ |
| 23 |
#define WRITE_KBC_CMD 0x60 /* @brief Write KBC Command Byte */ |
| 24 |
#define KBC_SELF_TEST 0xAA /* @brief KBC Diagnostic Tests */ |
| 25 |
#define KBC_INT_TEST 0xAB /* @brief Tests Keyboard Clock and Data lines */ |
| 26 |
#define KBC_INT_DISABLE 0xAD /* @brief Disable KBC Interface */ |
| 27 |
#define KBC_INT_ENABLE 0xAE /* @brief Enable KBC Interface */ |
| 28 |
#define MOUSE_DISABLE 0xA7 /* @brief Disable Mouse */ |
| 29 |
#define MOUSE_ENABLE 0xA8 /* @brief Enable Mouse */ |
| 30 |
#define MOUSE_INT_TEST 0xA9 /* @brief Tests Mouse data line */ |
| 31 |
#define MOUSE_WRITE_B 0xD4 /* @brief Write a byte directly to the mouse */ |
| 32 |
|
| 33 |
/* Status Byte Masking */
|
| 34 |
|
| 35 |
#define OUT_BUF_FUL BIT(0) /* @brief Output Buffer State */ |
| 36 |
#define IN_BUF_FULL BIT(1) /* @brief Input Buffer State */ |
| 37 |
#define SYS_FLAG BIT(2) /* @brief System Flag */ |
| 38 |
#define DATA_CMD_WRITE BIT(3) /* @brief Identifier of type of byte in input buffer */ |
| 39 |
#define INH_FLAG BIT(4) /* @brief Keyboard inihibited */ |
| 40 |
#define AUX_MOUSE BIT(5) /* @brief Mouse Data */ |
| 41 |
#define TIME_OUT_REC BIT(6) /* @brief Time Out Error - Invalid Data */ |
| 42 |
#define PARITY_ERROR BIT(7) /* @brief Parity Error - Invalid Data */ |
| 43 |
|
| 44 |
/* Scancode Constants */
|
| 45 |
|
| 46 |
#define ESC_BREAK_CODE 0x81 /* @brief ESC Break Code */ |
| 47 |
#define TWO_BYTE_CODE 0xE0 /* @brief First byte of a two byte Scancode */ |
| 48 |
#define BREAK_CODE_BIT BIT(7) /* @brief Bit to distinguish between Make code and Break code */ |
| 49 |
|
| 50 |
/* Command byte masks */
|
| 51 |
#define INT_KBD BIT(0) /* @brief Enable Keyboard Interrupts */ |
| 52 |
#define INT_MOU BIT(1) /* @brief Enable Mouse Interrupts */ |
| 53 |
#define DIS_KBD BIT(4) /* @brief Disable Keyboard */ |
| 54 |
#define DIS_MOU BIT(5) /* @brief Disable Mouse */ |
| 55 |
|
| 56 |
#endif //KBC_MACROS_H_INCLUDED |