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3924 | svoboda | 1 | /* |
2 | * Copyright (c) 2006 Martin Decky |
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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 | * |
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9 | * - Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * - Redistributions in binary form must reproduce the above copyright |
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12 | * notice, this list of conditions and the following disclaimer in the |
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13 | * documentation and/or other materials provided with the distribution. |
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14 | * - The name of the author may not be used to endorse or promote products |
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15 | * derived from this software without specific prior written permission. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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27 | */ |
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28 | |||
29 | /** @addtogroup kbd_port |
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30 | * @ingroup kbd |
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31 | * @{ |
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32 | */ |
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33 | /** @file |
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3925 | svoboda | 34 | * @brief Z8530 keyboard port driver. |
3924 | svoboda | 35 | */ |
36 | |||
37 | #include <ipc/ipc.h> |
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38 | #include <async.h> |
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39 | #include <sysinfo.h> |
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40 | #include <kbd.h> |
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41 | #include <kbd_port.h> |
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42 | #include <sys/types.h> |
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43 | |||
3961 | jermar | 44 | #define CHAN_A_STATUS 4 |
45 | #define CHAN_A_DATA 6 |
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46 | |||
47 | #define RR0_RCA 1 |
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48 | |||
49 | static irq_cmd_t z8530_cmds[] = { |
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3924 | svoboda | 50 | { |
3961 | jermar | 51 | .cmd = CMD_PIO_READ_8, |
52 | .addr = (void *) 0, /* will be patched in run-time */ |
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53 | .dstarg = 1 |
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54 | }, |
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55 | { |
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56 | .cmd = CMD_BTEST, |
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57 | .value = RR0_RCA, |
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58 | .srcarg = 1, |
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59 | .dstarg = 3 |
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60 | }, |
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61 | { |
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62 | .cmd = CMD_PREDICATE, |
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63 | .value = 2, |
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64 | .srcarg = 3 |
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65 | }, |
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66 | { |
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67 | .cmd = CMD_PIO_READ_8, |
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68 | .addr = (void *) 0, /* will be patched in run-time */ |
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69 | .dstarg = 2 |
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70 | }, |
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71 | { |
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72 | .cmd = CMD_ACCEPT |
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3924 | svoboda | 73 | } |
74 | }; |
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75 | |||
76 | irq_code_t z8530_kbd = { |
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3961 | jermar | 77 | sizeof(z8530_cmds) / sizeof(irq_cmd_t), |
3924 | svoboda | 78 | z8530_cmds |
79 | }; |
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80 | |||
81 | static void z8530_irq_handler(ipc_callid_t iid, ipc_call_t *call); |
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82 | |||
83 | int kbd_port_init(void) |
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84 | { |
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3925 | svoboda | 85 | async_set_interrupt_received(z8530_irq_handler); |
3961 | jermar | 86 | z8530_cmds[0].addr = (void *) sysinfo_value("kbd.address.virtual") + |
87 | CHAN_A_STATUS; |
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88 | z8530_cmds[3].addr = (void *) sysinfo_value("kbd.address.virtual") + |
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89 | CHAN_A_DATA; |
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3924 | svoboda | 90 | ipc_register_irq(sysinfo_value("kbd.inr"), sysinfo_value("kbd.devno"), |
91 | 0, &z8530_kbd); |
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92 | return 0; |
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93 | } |
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94 | |||
95 | static void z8530_irq_handler(ipc_callid_t iid, ipc_call_t *call) |
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96 | { |
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3961 | jermar | 97 | int scan_code = IPC_GET_ARG2(*call); |
3924 | svoboda | 98 | kbd_push_scancode(scan_code); |
99 | } |
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100 | |||
101 | /** @} |
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102 | */ |