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1 | /* |
1 | /* |
2 | * Copyright (c) 2005 Jakub Jermar |
2 | * Copyright (c) 2005 Jakub Jermar |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | /** @addtogroup ia64 |
29 | /** @addtogroup ia64 |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | /** @file |
32 | /** @file |
33 | */ |
33 | */ |
34 | 34 | ||
35 | #include <arch/ski/ski.h> |
35 | #include <arch/ski/ski.h> |
36 | #include <console/console.h> |
36 | #include <console/console.h> |
37 | #include <console/chardev.h> |
37 | #include <console/chardev.h> |
38 | #include <arch/interrupt.h> |
- | |
39 | #include <sysinfo/sysinfo.h> |
38 | #include <sysinfo/sysinfo.h> |
40 | #include <arch/types.h> |
39 | #include <arch/types.h> |
41 | #include <ddi/device.h> |
- | |
42 | #include <ddi/irq.h> |
- | |
43 | #include <ipc/irq.h> |
- | |
44 | #include <proc/thread.h> |
40 | #include <proc/thread.h> |
45 | #include <synch/spinlock.h> |
41 | #include <synch/spinlock.h> |
46 | #include <arch/asm.h> |
42 | #include <arch/asm.h> |
47 | #include <arch/drivers/kbd.h> |
43 | #include <arch/drivers/kbd.h> |
- | 44 | #include <arch.h> |
|
48 | 45 | ||
49 | #define SKI_KBD_INR 0 |
- | |
50 | - | ||
51 | static irq_t ski_kbd_irq; |
46 | static indev_t skiin; /**< Ski input device. */ |
52 | static devno_t ski_kbd_devno; |
47 | static outdev_t skiout; /**< Ski output device. */ |
53 | - | ||
54 | chardev_t ski_console; |
- | |
55 | chardev_t ski_uconsole; |
- | |
56 | 48 | ||
57 | static bool kbd_disabled; |
49 | static bool kbd_disabled; |
58 | 50 | ||
59 | /** Display character on debug console |
51 | /** Display character on debug console |
60 | * |
52 | * |
61 | * Use SSC (Simulator System Call) to |
53 | * Use SSC (Simulator System Call) to |
62 | * display character on debug console. |
54 | * display character on debug console. |
63 | * |
55 | * |
64 | * @param d Character device. |
56 | * @param d Character device. |
65 | * @param ch Character to be printed. |
57 | * @param ch Character to be printed. |
66 | */ |
58 | */ |
67 | static void ski_putchar(chardev_t *d, const char ch, bool silent) |
59 | static void ski_putchar(outdev_t *d, const char ch, bool silent) |
68 | { |
60 | { |
69 | if (!silent) { |
61 | if (!silent) { |
70 | asm volatile ( |
62 | asm volatile ( |
71 | "mov r15 = %0\n" |
63 | "mov r15 = %0\n" |
72 | "mov r32 = %1\n" /* r32 is in0 */ |
64 | "mov r32 = %1\n" /* r32 is in0 */ |
73 | "break 0x80000\n" /* modifies r8 */ |
65 | "break 0x80000\n" /* modifies r8 */ |
74 | : |
66 | : |
75 | : "i" (SKI_PUTCHAR), "r" (ch) |
67 | : "i" (SKI_PUTCHAR), "r" (ch) |
76 | : "r15", "in0", "r8" |
68 | : "r15", "in0", "r8" |
77 | ); |
69 | ); |
78 | 70 | ||
79 | if (ch == '\n') |
71 | if (ch == '\n') |
80 | ski_putchar(d, '\r', false); |
72 | ski_putchar(d, '\r', false); |
81 | } |
73 | } |
82 | } |
74 | } |
83 | 75 | ||
- | 76 | static indev_operations_t skiin_ops = { |
|
- | 77 | .poll = NULL |
|
- | 78 | }; |
|
- | 79 | ||
- | 80 | static outdev_operations_t skiout_ops = { |
|
- | 81 | .write = ski_putchar |
|
- | 82 | }; |
|
- | 83 | ||
84 | /** Ask debug console if a key was pressed. |
84 | /** Ask debug console if a key was pressed. |
85 | * |
85 | * |
86 | * Use SSC (Simulator System Call) to |
86 | * Use SSC (Simulator System Call) to |
87 | * get character from debug console. |
87 | * get character from debug console. |
88 | * |
88 | * |
89 | * This call is non-blocking. |
89 | * This call is non-blocking. |
90 | * |
90 | * |
91 | * @return ASCII code of pressed key or 0 if no key pressed. |
91 | * @return ASCII code of pressed key or 0 if no key pressed. |
92 | */ |
92 | */ |
93 | static int32_t ski_getchar(void) |
93 | static int32_t ski_getchar(void) |
94 | { |
94 | { |
95 | uint64_t ch; |
95 | uint64_t ch; |
96 | 96 | ||
97 | asm volatile ( |
97 | asm volatile ( |
98 | "mov r15 = %1\n" |
98 | "mov r15 = %1\n" |
99 | "break 0x80000;;\n" /* modifies r8 */ |
99 | "break 0x80000;;\n" /* modifies r8 */ |
100 | "mov %0 = r8;;\n" |
100 | "mov %0 = r8;;\n" |
101 | 101 | ||
102 | : "=r" (ch) |
102 | : "=r" (ch) |
103 | : "i" (SKI_GETCHAR) |
103 | : "i" (SKI_GETCHAR) |
104 | : "r15", "r8" |
104 | : "r15", "r8" |
105 | ); |
105 | ); |
106 | 106 | ||
107 | return (int32_t) ch; |
107 | return (int32_t) ch; |
108 | } |
108 | } |
109 | 109 | ||
110 | /** |
- | |
111 | * This is a blocking wrapper for ski_getchar(). |
- | |
112 | * To be used when the kernel crashes. |
- | |
113 | */ |
- | |
114 | static char ski_getchar_blocking(chardev_t *d) |
- | |
115 | { |
- | |
116 | int ch; |
- | |
117 | - | ||
118 | while(!(ch = ski_getchar())); |
- | |
119 | - | ||
120 | if (ch == '\r') |
- | |
121 | ch = '\n'; |
- | |
122 | return (char) ch; |
- | |
123 | } |
- | |
124 | - | ||
125 | /** Ask keyboard if a key was pressed. */ |
110 | /** Ask keyboard if a key was pressed. */ |
126 | static void poll_keyboard(void) |
111 | static void poll_keyboard(void) |
127 | { |
112 | { |
128 | char ch; |
113 | char ch; |
129 | static char last; |
- | |
130 | ipl_t ipl; |
- | |
131 | 114 | ||
132 | ipl = interrupts_disable(); |
- | |
133 | - | ||
134 | if (kbd_disabled) { |
115 | if (kbd_disabled) |
135 | interrupts_restore(ipl); |
- | |
136 | return; |
116 | return; |
137 | } |
- | |
138 | - | ||
139 | spinlock_lock(&ski_kbd_irq.lock); |
- | |
140 | - | ||
141 | ch = ski_getchar(); |
117 | ch = ski_getchar(); |
142 | if(ch == '\r') |
118 | if(ch == '\r') |
143 | ch = '\n'; |
119 | ch = '\n'; |
144 | if (ch) { |
120 | if (ch) { |
145 | if (ski_kbd_irq.notif_cfg.notify && |
- | |
146 | ski_kbd_irq.notif_cfg.answerbox) { |
- | |
147 | chardev_push_character(&ski_uconsole, ch); |
- | |
148 | /* XXX: send notification to userspace */ |
- | |
149 | } else { |
- | |
150 | chardev_push_character(&ski_console, ch); |
121 | indev_push_character(&skiin, ch); |
151 | } |
- | |
152 | last = ch; |
- | |
153 | spinlock_unlock(&ski_kbd_irq.lock); |
- | |
154 | interrupts_restore(ipl); |
- | |
155 | return; |
122 | return; |
156 | } |
123 | } |
157 | - | ||
158 | if (last) { |
- | |
159 | if (ski_kbd_irq.notif_cfg.notify && |
- | |
160 | ski_kbd_irq.notif_cfg.answerbox) { |
- | |
161 | chardev_push_character(&ski_uconsole, 0); |
- | |
162 | /* XXX: send notification to userspace */ |
- | |
163 | } |
- | |
164 | last = 0; |
- | |
165 | } |
- | |
166 | - | ||
167 | spinlock_unlock(&ski_kbd_irq.lock); |
- | |
168 | interrupts_restore(ipl); |
- | |
169 | } |
124 | } |
170 | 125 | ||
171 | /* Called from getc(). */ |
- | |
172 | static void ski_kbd_enable(chardev_t *d) |
126 | #define POLL_INTERVAL 10000 /* 10 ms */ |
173 | { |
- | |
174 | kbd_disabled = false; |
- | |
175 | } |
- | |
176 | 127 | ||
177 | /* Called from getc(). */ |
128 | /** Kernel thread for polling keyboard. */ |
178 | static void ski_kbd_disable(chardev_t *d) |
129 | static void kkbdpoll(void *arg) |
179 | { |
- | |
180 | kbd_disabled = true; |
- | |
181 | } |
- | |
182 | - | ||
183 | /** Decline to service hardware IRQ. |
- | |
184 | * |
- | |
185 | * This is only a virtual IRQ, so always decline. |
- | |
186 | * |
- | |
187 | * @return Always IRQ_DECLINE. |
- | |
188 | */ |
- | |
189 | static irq_ownership_t ski_kbd_claim(irq_t *irq) |
- | |
190 | { |
130 | { |
- | 131 | while (1) { |
|
- | 132 | if (!silent) { |
|
- | 133 | poll_keyboard(); |
|
- | 134 | } |
|
191 | return IRQ_DECLINE; |
135 | thread_usleep(POLL_INTERVAL); |
- | 136 | } |
|
192 | } |
137 | } |
193 | 138 | ||
194 | static chardev_operations_t ski_ops = { |
- | |
195 | .resume = ski_kbd_enable, |
- | |
196 | .suspend = ski_kbd_disable, |
- | |
197 | .write = ski_putchar, |
- | |
198 | .read = ski_getchar_blocking |
- | |
199 | }; |
- | |
200 | - | ||
201 | /** Initialize debug console |
139 | /** Initialize debug console |
202 | * |
140 | * |
203 | * Issue SSC (Simulator System Call) to |
141 | * Issue SSC (Simulator System Call) to |
204 | * to open debug console. |
142 | * to open debug console. |
205 | */ |
143 | */ |
206 | void ski_init_console(void) |
144 | static void ski_init(void) |
207 | { |
145 | { |
- | 146 | static bool initialized; |
|
- | 147 | ||
- | 148 | if (initialized) |
|
- | 149 | return; |
|
- | 150 | ||
208 | asm volatile ( |
151 | asm volatile ( |
209 | "mov r15 = %0\n" |
152 | "mov r15 = %0\n" |
210 | "break 0x80000\n" |
153 | "break 0x80000\n" |
211 | : |
154 | : |
212 | : "i" (SKI_INIT_CONSOLE) |
155 | : "i" (SKI_INIT_CONSOLE) |
213 | : "r15", "r8" |
156 | : "r15", "r8" |
214 | ); |
157 | ); |
- | 158 | ||
- | 159 | initialized = true; |
|
- | 160 | } |
|
215 | 161 | ||
216 | chardev_initialize("ski_console", &ski_console, &ski_ops); |
- | |
217 | chardev_initialize("ski_uconsole", &ski_uconsole, &ski_ops); |
- | |
218 | stdin = &ski_console; |
162 | indev_t *skiin_init(void) |
- | 163 | { |
|
219 | stdout = &ski_console; |
164 | ski_init(); |
220 | 165 | ||
221 | ski_kbd_devno = device_assign_devno(); |
166 | indev_initialize("skiin", &skiin, &skiin_ops); |
222 | - | ||
223 | irq_initialize(&ski_kbd_irq); |
167 | thread_t *t = thread_create(kkbdpoll, NULL, TASK, 0, "kkbdpoll", true); |
224 | ski_kbd_irq.inr = SKI_KBD_INR; |
168 | if (t) |
225 | ski_kbd_irq.devno = ski_kbd_devno; |
169 | thread_ready(t); |
226 | ski_kbd_irq.claim = ski_kbd_claim; |
170 | else |
227 | irq_register(&ski_kbd_irq); |
171 | return NULL; |
228 | 172 | ||
229 | sysinfo_set_item_val("kbd", NULL, true); |
173 | sysinfo_set_item_val("kbd", NULL, true); |
230 | sysinfo_set_item_val("kbd.inr", NULL, SKI_KBD_INR); |
- | |
231 | sysinfo_set_item_val("kbd.devno", NULL, ski_kbd_devno); |
- | |
232 | sysinfo_set_item_val("kbd.type", NULL, KBD_SKI); |
174 | sysinfo_set_item_val("kbd.type", NULL, KBD_SKI); |
233 | 175 | ||
234 | sysinfo_set_item_val("fb", NULL, false); |
176 | return &skiin; |
235 | } |
177 | } |
236 | 178 | ||
- | 179 | ||
237 | void ski_kbd_grab(void) |
180 | void skiout_init(void) |
238 | { |
181 | { |
239 | ipl_t ipl = interrupts_disable(); |
182 | ski_init(); |
- | 183 | ||
240 | spinlock_lock(&ski_kbd_irq.lock); |
184 | outdev_initialize("skiout", &skiout, &skiout_ops); |
241 | ski_kbd_irq.notif_cfg.notify = false; |
185 | stdout = &skiout; |
- | 186 | ||
242 | spinlock_unlock(&ski_kbd_irq.lock); |
187 | sysinfo_set_item_val("fb", NULL, false); |
243 | interrupts_restore(ipl); |
- | |
244 | } |
188 | } |
245 | 189 | ||
246 | void ski_kbd_release(void) |
190 | void ski_kbd_grab(void) |
247 | { |
191 | { |
248 | ipl_t ipl = interrupts_disable(); |
- | |
249 | spinlock_lock(&ski_kbd_irq.lock); |
- | |
250 | if (ski_kbd_irq.notif_cfg.answerbox) |
- | |
251 | ski_kbd_irq.notif_cfg.notify = true; |
192 | kbd_disabled = true; |
252 | spinlock_unlock(&ski_kbd_irq.lock); |
- | |
253 | interrupts_restore(ipl); |
- | |
254 | } |
193 | } |
255 | 194 | ||
256 | - | ||
257 | #define POLL_INTERVAL 50000 /* 50 ms */ |
- | |
258 | - | ||
259 | /** Kernel thread for polling keyboard. */ |
- | |
260 | void kkbdpoll(void *arg) |
195 | void ski_kbd_release(void) |
261 | { |
196 | { |
262 | while (1) { |
- | |
263 | if (!silent) { |
197 | kbd_disabled = false; |
264 | poll_keyboard(); |
- | |
265 | } |
- | |
266 | thread_usleep(POLL_INTERVAL); |
- | |
267 | } |
- | |
268 | } |
198 | } |
269 | 199 | ||
270 | /** @} |
200 | /** @} |
271 | */ |
201 | */ |
272 | 202 |