scoutos / prex-0.9.0 / bsp / drv / dev / input / i8042.h @ 03e9c04a
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1 | 03e9c04a | Brad Neuman | /*
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2 | * Copyright (c) 2005, Kohsuke Ohtani
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3 | * All rights reserved.
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4 | *
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5 | * Redistribution and use in source and binary forms, with or without
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6 | * modification, are permitted provided that the following conditions
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7 | * are met:
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8 | * 1. Redistributions of source code must retain the above copyright
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9 | * notice, this list of conditions and the following disclaimer.
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10 | * 2. Redistributions in binary form must reproduce the above copyright
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11 | * notice, this list of conditions and the following disclaimer in the
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12 | * documentation and/or other materials provided with the distribution.
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13 | * 3. Neither the name of the author nor the names of any co-contributors
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14 | * may be used to endorse or promote products derived from this software
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15 | * without specific prior written permission.
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16 | *
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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18 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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21 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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23 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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24 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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25 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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26 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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27 | * SUCH DAMAGE.
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28 | */
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29 | |||
30 | #ifndef _KMC_H
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31 | #define _KMC_H
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32 | /*
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33 | * i8042 Keyboard Mouse Controller definition
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34 | */
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35 | |||
36 | /* I/O ports */
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37 | #define KMC_DATA 0x60 |
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38 | #define KMC_PORTB 0x61 |
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39 | #define KMC_CMD 0x64 |
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40 | #define KMC_STS 0x64 |
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41 | |||
42 | /* Status */
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43 | #define STS_PERR 0x80 /* Parity error */ |
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44 | #define STS_TMO 0x40 /* Timeout */ |
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45 | #define STS_AUXOBF 0x20 /* Mouse OBF */ |
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46 | #define STS_INH 0x10 /* 0: inhibit 1: no-inhibit */ |
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47 | #define STS_SYS 0x04 /* 0: power up 1:Init comp */ |
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48 | #define STS_IBF 0x02 /* Input (to kbd) buffer full */ |
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49 | #define STS_OBF 0x01 /* Output (from kbd) buffer full */ |
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50 | |||
51 | /* Command */
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52 | #define CMD_READ_CMD 0x20 |
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53 | #define CMD_WRITE_CMD 0x60 |
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54 | #define CMD_AUX_DIS 0xa7 |
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55 | #define CMD_AUX_EN 0xa8 |
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56 | #define CMD_KBD_DIS 0xad |
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57 | #define CMD_KBD_EN 0xae |
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58 | #define CMD_READ_OPORT 0xd0 |
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59 | #define CMD_WRITE_OPORT 0xd1 |
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60 | #define CMD_WRITE_AUX 0xd4 |
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61 | |||
62 | /* Auxillary device command */
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63 | #define AUX_ENABLE 0xf4 |
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64 | #define AUX_DISABLE 0xf5 |
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65 | #define AUX_RESET 0xff |
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66 | |||
67 | /*
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68 | * wait_obf: Wait output buffer full
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69 | * wait_obe: Wait input buffer empty
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70 | * wait_ibf: Wait input buffer full
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71 | * wait_ibe: Wait input buffer empty
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72 | */
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73 | #define kmc_wait_obf() while ((bus_read_8(KMC_STS) & STS_OBF) == 0) |
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74 | #define kmc_wait_obe() while (bus_read_8(KMC_STS) & STS_OBF) |
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75 | #define kmc_wait_ibf() while ((bus_read_8(KMC_STS) & STS_IBF) == 0) |
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76 | #define kmc_wait_ibe() while (bus_read_8(KMC_STS) & STS_IBF) |
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77 | |||
78 | #endif /* !_KMC_H */ |