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78 | jermar | 1 | /* |
2071 | jermar | 2 | * Copyright (c) 2005 Jakub Jermar |
78 | jermar | 3 | * All rights reserved. |
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 | |||
1888 | jermar | 29 | /** @addtogroup ia64 |
1702 | cejka | 30 | * @{ |
31 | */ |
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32 | /** @file |
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33 | */ |
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34 | |||
78 | jermar | 35 | #include <arch/ski/ski.h> |
577 | palkovsky | 36 | #include <console/console.h> |
37 | #include <console/chardev.h> |
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1507 | vana | 38 | #include <sysinfo/sysinfo.h> |
1942 | jermar | 39 | #include <arch/types.h> |
1945 | jermar | 40 | #include <proc/thread.h> |
1942 | jermar | 41 | #include <synch/spinlock.h> |
42 | #include <arch/asm.h> |
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3661 | vana | 43 | #include <arch/drivers/kbd.h> |
4060 | jermar | 44 | #include <arch.h> |
78 | jermar | 45 | |
4060 | jermar | 46 | static chardev_t *skiout; |
1942 | jermar | 47 | |
4060 | jermar | 48 | static chardev_t ski_stdout; |
1942 | jermar | 49 | |
50 | static bool kbd_disabled; |
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51 | |||
79 | jermar | 52 | /** Display character on debug console |
53 | * |
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54 | * Use SSC (Simulator System Call) to |
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55 | * display character on debug console. |
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56 | * |
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583 | jermar | 57 | * @param d Character device. |
58 | * @param ch Character to be printed. |
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79 | jermar | 59 | */ |
3844 | decky | 60 | static void ski_putchar(chardev_t *d, const char ch, bool silent) |
78 | jermar | 61 | { |
3844 | decky | 62 | if (!silent) { |
63 | asm volatile ( |
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64 | "mov r15 = %0\n" |
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65 | "mov r32 = %1\n" /* r32 is in0 */ |
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66 | "break 0x80000\n" /* modifies r8 */ |
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67 | : |
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68 | : "i" (SKI_PUTCHAR), "r" (ch) |
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69 | : "r15", "in0", "r8" |
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70 | ); |
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71 | |||
72 | if (ch == '\n') |
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3854 | decky | 73 | ski_putchar(d, '\r', false); |
3844 | decky | 74 | } |
78 | jermar | 75 | } |
519 | vana | 76 | |
4060 | jermar | 77 | static chardev_operations_t ski_ops = { |
78 | .write = ski_putchar |
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79 | }; |
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80 | |||
523 | jermar | 81 | /** Ask debug console if a key was pressed. |
519 | vana | 82 | * |
83 | * Use SSC (Simulator System Call) to |
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84 | * get character from debug console. |
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523 | jermar | 85 | * |
86 | * This call is non-blocking. |
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87 | * |
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88 | * @return ASCII code of pressed key or 0 if no key pressed. |
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519 | vana | 89 | */ |
3844 | decky | 90 | static int32_t ski_getchar(void) |
519 | vana | 91 | { |
1780 | jermar | 92 | uint64_t ch; |
519 | vana | 93 | |
2082 | decky | 94 | asm volatile ( |
1942 | jermar | 95 | "mov r15 = %1\n" |
519 | vana | 96 | "break 0x80000;;\n" /* modifies r8 */ |
1942 | jermar | 97 | "mov %0 = r8;;\n" |
519 | vana | 98 | |
584 | jermar | 99 | : "=r" (ch) |
100 | : "i" (SKI_GETCHAR) |
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1942 | jermar | 101 | : "r15", "r8" |
519 | vana | 102 | ); |
103 | |||
1780 | jermar | 104 | return (int32_t) ch; |
519 | vana | 105 | } |
577 | palkovsky | 106 | |
107 | /** Ask keyboard if a key was pressed. */ |
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1945 | jermar | 108 | static void poll_keyboard(void) |
577 | palkovsky | 109 | { |
110 | char ch; |
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1942 | jermar | 111 | ipl_t ipl; |
3880 | decky | 112 | |
1942 | jermar | 113 | ipl = interrupts_disable(); |
3880 | decky | 114 | |
1942 | jermar | 115 | if (kbd_disabled) { |
116 | interrupts_restore(ipl); |
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577 | palkovsky | 117 | return; |
1942 | jermar | 118 | } |
3880 | decky | 119 | |
577 | palkovsky | 120 | ch = ski_getchar(); |
121 | if(ch == '\r') |
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122 | ch = '\n'; |
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4060 | jermar | 123 | if (ch && skiout) { |
124 | chardev_push_character(skiout, ch); |
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1942 | jermar | 125 | interrupts_restore(ipl); |
1570 | vana | 126 | return; |
1942 | jermar | 127 | } |
1507 | vana | 128 | |
1942 | jermar | 129 | interrupts_restore(ipl); |
577 | palkovsky | 130 | } |
131 | |||
4060 | jermar | 132 | #define POLL_INTERVAL 10000 /* 10 ms */ |
577 | palkovsky | 133 | |
4060 | jermar | 134 | /** Kernel thread for polling keyboard. */ |
135 | static void kkbdpoll(void *arg) |
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577 | palkovsky | 136 | { |
4060 | jermar | 137 | while (1) { |
138 | if (!silent) { |
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139 | poll_keyboard(); |
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140 | } |
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141 | thread_usleep(POLL_INTERVAL); |
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142 | } |
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577 | palkovsky | 143 | } |
144 | |||
145 | /** Initialize debug console |
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146 | * |
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147 | * Issue SSC (Simulator System Call) to |
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148 | * to open debug console. |
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149 | */ |
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4060 | jermar | 150 | void ski_console_init(chardev_t *devout) |
577 | palkovsky | 151 | { |
2082 | decky | 152 | asm volatile ( |
1942 | jermar | 153 | "mov r15 = %0\n" |
577 | palkovsky | 154 | "break 0x80000\n" |
155 | : |
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156 | : "i" (SKI_INIT_CONSOLE) |
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157 | : "r15", "r8" |
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158 | ); |
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159 | |||
4060 | jermar | 160 | skiout = devout; |
161 | chardev_initialize("ski_stdout", &ski_stdout, &ski_ops); |
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162 | stdout = &ski_stdout; |
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1507 | vana | 163 | |
4060 | jermar | 164 | thread_t *t = thread_create(kkbdpoll, NULL, TASK, 0, "kkbdpoll", true); |
165 | if (!t) |
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166 | panic("Cannot create kkbdpoll."); |
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167 | thread_ready(t); |
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1942 | jermar | 168 | |
169 | sysinfo_set_item_val("kbd", NULL, true); |
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3657 | vana | 170 | sysinfo_set_item_val("kbd.type", NULL, KBD_SKI); |
3718 | svoboda | 171 | |
172 | sysinfo_set_item_val("fb", NULL, false); |
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1507 | vana | 173 | } |
1702 | cejka | 174 | |
1942 | jermar | 175 | void ski_kbd_grab(void) |
176 | { |
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4060 | jermar | 177 | kbd_disabled = true; |
1942 | jermar | 178 | } |
179 | |||
180 | void ski_kbd_release(void) |
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181 | { |
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4060 | jermar | 182 | kbd_disabled = false; |
1942 | jermar | 183 | } |
184 | |||
1888 | jermar | 185 | /** @} |
1702 | cejka | 186 | */ |