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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 | |||
4223 | decky | 29 | /** @addtogroup ia64 |
1702 | cejka | 30 | * @{ |
31 | */ |
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32 | /** @file |
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33 | */ |
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34 | |||
4311 | decky | 35 | #include <arch/drivers/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> |
4220 | decky | 44 | #include <string.h> |
4060 | jermar | 45 | #include <arch.h> |
78 | jermar | 46 | |
4311 | decky | 47 | #define POLL_INTERVAL 10000 /* 10 ms */ |
1942 | jermar | 48 | |
4311 | decky | 49 | #define SKI_INIT_CONSOLE 20 |
50 | #define SKI_GETCHAR 21 |
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51 | #define SKI_PUTCHAR 31 |
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1942 | jermar | 52 | |
4311 | decky | 53 | static void ski_putchar(outdev_t *, const wchar_t, bool); |
54 | |||
55 | static outdev_operations_t skiout_ops = { |
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56 | .write = ski_putchar |
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57 | }; |
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58 | |||
59 | static outdev_t skiout; /**< Ski output device. */ |
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60 | static bool initialized = false; |
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61 | static bool kbd_disabled = false; |
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62 | |||
63 | /** Initialize debug console |
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64 | * |
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65 | * Issue SSC (Simulator System Call) to |
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66 | * to open debug console. |
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67 | * |
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68 | */ |
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69 | static void ski_init(void) |
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70 | { |
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71 | if (initialized) |
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72 | return; |
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73 | |||
74 | asm volatile ( |
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75 | "mov r15 = %0\n" |
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76 | "break 0x80000\n" |
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77 | : |
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78 | : "i" (SKI_INIT_CONSOLE) |
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79 | : "r15", "r8" |
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80 | ); |
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81 | |||
82 | initialized = true; |
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83 | } |
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84 | |||
4220 | decky | 85 | static void ski_do_putchar(const wchar_t ch) |
86 | { |
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87 | asm volatile ( |
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88 | "mov r15 = %[cmd]\n" |
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89 | "mov r32 = %[ch]\n" /* r32 is in0 */ |
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4311 | decky | 90 | "break 0x80000\n" /* modifies r8 */ |
4220 | decky | 91 | : |
92 | : [cmd] "i" (SKI_PUTCHAR), [ch] "r" (ch) |
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93 | : "r15", "in0", "r8" |
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94 | ); |
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95 | } |
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96 | |||
79 | jermar | 97 | /** Display character on debug console |
98 | * |
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99 | * Use SSC (Simulator System Call) to |
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100 | * display character on debug console. |
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101 | * |
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4311 | decky | 102 | * @param dev Character device. |
103 | * @param ch Character to be printed. |
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104 | * @param silent Whether the output should be silenced. |
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105 | * |
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79 | jermar | 106 | */ |
4311 | decky | 107 | static void ski_putchar(outdev_t *dev, const wchar_t ch, bool silent) |
78 | jermar | 108 | { |
3844 | decky | 109 | if (!silent) { |
4220 | decky | 110 | if (ascii_check(ch)) { |
111 | if (ch == '\n') |
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112 | ski_do_putchar('\r'); |
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113 | |||
114 | ski_do_putchar(ch); |
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115 | } else |
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4311 | decky | 116 | ski_do_putchar(U_SPECIAL); |
3844 | decky | 117 | } |
78 | jermar | 118 | } |
519 | vana | 119 | |
4311 | decky | 120 | void skiout_init(void) |
121 | { |
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122 | ski_init(); |
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123 | |||
124 | outdev_initialize("skiout", &skiout, &skiout_ops); |
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125 | stdout = &skiout; |
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126 | |||
127 | sysinfo_set_item_val("fb", NULL, false); |
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128 | } |
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4114 | jermar | 129 | |
523 | jermar | 130 | /** Ask debug console if a key was pressed. |
519 | vana | 131 | * |
132 | * Use SSC (Simulator System Call) to |
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133 | * get character from debug console. |
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523 | jermar | 134 | * |
135 | * This call is non-blocking. |
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136 | * |
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137 | * @return ASCII code of pressed key or 0 if no key pressed. |
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4311 | decky | 138 | * |
519 | vana | 139 | */ |
4311 | decky | 140 | static wchar_t ski_getchar(void) |
519 | vana | 141 | { |
1780 | jermar | 142 | uint64_t ch; |
519 | vana | 143 | |
2082 | decky | 144 | asm volatile ( |
1942 | jermar | 145 | "mov r15 = %1\n" |
4311 | decky | 146 | "break 0x80000;;\n" /* modifies r8 */ |
147 | "mov %0 = r8;;\n" |
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148 | |||
584 | jermar | 149 | : "=r" (ch) |
150 | : "i" (SKI_GETCHAR) |
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1942 | jermar | 151 | : "r15", "r8" |
519 | vana | 152 | ); |
4311 | decky | 153 | |
154 | return (wchar_t) ch; |
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519 | vana | 155 | } |
577 | palkovsky | 156 | |
157 | /** Ask keyboard if a key was pressed. */ |
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4311 | decky | 158 | static void poll_keyboard(ski_instance_t *instance) |
577 | palkovsky | 159 | { |
4114 | jermar | 160 | if (kbd_disabled) |
577 | palkovsky | 161 | return; |
4311 | decky | 162 | |
163 | wchar_t ch = ski_getchar(); |
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164 | |||
165 | if (ch != 0) |
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166 | indev_push_character(instance->srlnin, ch); |
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577 | palkovsky | 167 | } |
168 | |||
4060 | jermar | 169 | /** Kernel thread for polling keyboard. */ |
4311 | decky | 170 | static void kskipoll(void *arg) |
577 | palkovsky | 171 | { |
4311 | decky | 172 | ski_instance_t *instance = (ski_instance_t *) arg; |
173 | |||
174 | while (true) { |
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175 | if (!silent) |
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176 | poll_keyboard(instance); |
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177 | |||
4060 | jermar | 178 | thread_usleep(POLL_INTERVAL); |
179 | } |
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577 | palkovsky | 180 | } |
181 | |||
4311 | decky | 182 | ski_instance_t *skiin_init(void) |
577 | palkovsky | 183 | { |
4311 | decky | 184 | ski_init(); |
4114 | jermar | 185 | |
4313 | jermar | 186 | ski_instance_t *instance = |
187 | malloc(sizeof(ski_instance_t), FRAME_ATOMIC); |
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4114 | jermar | 188 | |
4311 | decky | 189 | if (instance) { |
4313 | jermar | 190 | instance->thread = thread_create(kskipoll, instance, TASK, 0, |
191 | "kskipoll", true); |
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4311 | decky | 192 | |
193 | if (!instance->thread) { |
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194 | free(instance); |
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195 | return NULL; |
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196 | } |
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197 | |||
198 | instance->srlnin = NULL; |
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199 | } |
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200 | |||
201 | return instance; |
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4114 | jermar | 202 | } |
577 | palkovsky | 203 | |
4311 | decky | 204 | void skiin_wire(ski_instance_t *instance, indev_t *srlnin) |
4114 | jermar | 205 | { |
4311 | decky | 206 | ASSERT(instance); |
207 | ASSERT(srlnin); |
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208 | |||
209 | instance->srlnin = srlnin; |
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210 | thread_ready(instance->thread); |
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211 | |||
1942 | jermar | 212 | sysinfo_set_item_val("kbd", NULL, true); |
3657 | vana | 213 | sysinfo_set_item_val("kbd.type", NULL, KBD_SKI); |
4114 | jermar | 214 | } |
215 | |||
1942 | jermar | 216 | void ski_kbd_grab(void) |
217 | { |
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4329 | svoboda | 218 | kbd_disabled = false; |
1942 | jermar | 219 | } |
220 | |||
221 | void ski_kbd_release(void) |
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222 | { |
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4329 | svoboda | 223 | kbd_disabled = true; |
1942 | jermar | 224 | } |
225 | |||
1888 | jermar | 226 | /** @} |
1702 | cejka | 227 | */ |