1 /* Basic ps2 port (keyboard/mouse) command handling.
2 
3    This file is copied (mostly) intact from SeaBIOS.
4    It is covered by the GNU Lesser General Public License, v3.
5 
6    You should have received a copy of the GNU Lesser General Public License
7    along with this program; see the file COPYING.  If not see
8    <http://www.gnu.org/licenses/>.  */
9 
10 #ifndef PS2PORT_H
11 #define PS2PORT_H
12 
13 typedef uint8_t u8;
14 
15 // Standard commands.
16 #define I8042_CMD_CTL_RCTR      0x0120
17 #define I8042_CMD_CTL_WCTR      0x1060
18 #define I8042_CMD_CTL_TEST      0x01aa
19 
20 #define I8042_CMD_KBD_TEST      0x01ab
21 #define I8042_CMD_KBD_DISABLE   0x00ad
22 #define I8042_CMD_KBD_ENABLE    0x00ae
23 
24 #define I8042_CMD_AUX_DISABLE   0x00a7
25 #define I8042_CMD_AUX_ENABLE    0x00a8
26 #define I8042_CMD_AUX_SEND      0x10d4
27 
28 // Keyboard commands
29 #define ATKBD_CMD_SETLEDS       0x10ed
30 #define ATKBD_CMD_SSCANSET      0x10f0
31 #define ATKBD_CMD_GETID         0x02f2
32 #define ATKBD_CMD_ENABLE        0x00f4
33 #define ATKBD_CMD_RESET_DIS     0x00f5
34 #define ATKBD_CMD_RESET_BAT     0x02ff
35 
36 // Mouse commands
37 #define PSMOUSE_CMD_SETSCALE11  0x00e6
38 #define PSMOUSE_CMD_SETSCALE21  0x00e7
39 #define PSMOUSE_CMD_SETRES      0x10e8
40 #define PSMOUSE_CMD_GETINFO     0x03e9
41 #define PSMOUSE_CMD_GETID       0x02f2
42 #define PSMOUSE_CMD_SETRATE     0x10f3
43 #define PSMOUSE_CMD_ENABLE      0x00f4
44 #define PSMOUSE_CMD_DISABLE     0x00f5
45 #define PSMOUSE_CMD_RESET_BAT   0x02ff
46 
47 // Status register bits.
48 #define I8042_STR_PARITY        0x80
49 #define I8042_STR_TIMEOUT       0x40
50 #define I8042_STR_AUXDATA       0x20
51 #define I8042_STR_KEYLOCK       0x10
52 #define I8042_STR_CMDDAT        0x08
53 #define I8042_STR_MUXERR        0x04
54 #define I8042_STR_IBF           0x02
55 #define I8042_STR_OBF           0x01
56 
57 // Control register bits.
58 #define I8042_CTR_KBDINT        0x01
59 #define I8042_CTR_AUXINT        0x02
60 #define I8042_CTR_IGNKEYLOCK    0x08
61 #define I8042_CTR_KBDDIS        0x10
62 #define I8042_CTR_AUXDIS        0x20
63 #define I8042_CTR_XLATE         0x40
64 
65 // functions
66 void i8042_reboot(void);
67 int ps2_kbd_command(int command, u8 *param);
68 int ps2_mouse_command(int command, u8 *param);
69 void ps2port_setup(void);
70 
71 #endif // ps2port.h
72