Rev 4296 | Go to most recent revision | Only display areas with differences | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed
Rev 4296 | Rev 4420 | ||
---|---|---|---|
1 | /* |
1 | /* |
2 | * Copyright (c) 2003 Josef Cejka |
2 | * Copyright (c) 2003 Josef Cejka |
3 | * Copyright (c) 2005 Jakub Jermar |
3 | * Copyright (c) 2005 Jakub Jermar |
4 | * All rights reserved. |
4 | * All rights reserved. |
5 | * |
5 | * |
6 | * Redistribution and use in source and binary forms, with or without |
6 | * Redistribution and use in source and binary forms, with or without |
7 | * modification, are permitted provided that the following conditions |
7 | * modification, are permitted provided that the following conditions |
8 | * are met: |
8 | * are met: |
9 | * |
9 | * |
10 | * - Redistributions of source code must retain the above copyright |
10 | * - Redistributions of source code must retain the above copyright |
11 | * notice, this list of conditions and the following disclaimer. |
11 | * notice, this list of conditions and the following disclaimer. |
12 | * - Redistributions in binary form must reproduce the above copyright |
12 | * - Redistributions in binary form must reproduce the above copyright |
13 | * notice, this list of conditions and the following disclaimer in the |
13 | * notice, this list of conditions and the following disclaimer in the |
14 | * documentation and/or other materials provided with the distribution. |
14 | * documentation and/or other materials provided with the distribution. |
15 | * - The name of the author may not be used to endorse or promote products |
15 | * - The name of the author may not be used to endorse or promote products |
16 | * derived from this software without specific prior written permission. |
16 | * derived from this software without specific prior written permission. |
17 | * |
17 | * |
18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
28 | */ |
28 | */ |
29 | 29 | ||
30 | /** @addtogroup genericconsole |
30 | /** @addtogroup genericconsole |
31 | * @{ |
31 | * @{ |
32 | */ |
32 | */ |
33 | /** @file |
33 | /** @file |
34 | */ |
34 | */ |
35 | 35 | ||
36 | #include <console/console.h> |
36 | #include <console/console.h> |
37 | #include <console/chardev.h> |
37 | #include <console/chardev.h> |
38 | #include <sysinfo/sysinfo.h> |
38 | #include <sysinfo/sysinfo.h> |
39 | #include <synch/waitq.h> |
39 | #include <synch/waitq.h> |
40 | #include <synch/spinlock.h> |
40 | #include <synch/spinlock.h> |
41 | #include <arch/types.h> |
41 | #include <arch/types.h> |
42 | #include <ddi/irq.h> |
42 | #include <ddi/irq.h> |
43 | #include <ddi/ddi.h> |
43 | #include <ddi/ddi.h> |
44 | #include <ipc/event.h> |
44 | #include <ipc/event.h> |
45 | #include <ipc/irq.h> |
45 | #include <ipc/irq.h> |
46 | #include <arch.h> |
46 | #include <arch.h> |
47 | #include <func.h> |
- | |
48 | #include <print.h> |
47 | #include <print.h> |
49 | #include <putchar.h> |
48 | #include <putchar.h> |
50 | #include <atomic.h> |
49 | #include <atomic.h> |
51 | #include <syscall/copy.h> |
50 | #include <syscall/copy.h> |
52 | #include <errno.h> |
51 | #include <errno.h> |
53 | #include <string.h> |
52 | #include <string.h> |
54 | 53 | ||
55 | #define KLOG_PAGES 4 |
54 | #define KLOG_PAGES 4 |
56 | #define KLOG_LENGTH (KLOG_PAGES * PAGE_SIZE / sizeof(wchar_t)) |
55 | #define KLOG_LENGTH (KLOG_PAGES * PAGE_SIZE / sizeof(wchar_t)) |
57 | #define KLOG_LATENCY 8 |
56 | #define KLOG_LATENCY 8 |
58 | 57 | ||
59 | /** Kernel log cyclic buffer */ |
58 | /** Kernel log cyclic buffer */ |
60 | static wchar_t klog[KLOG_LENGTH] __attribute__ ((aligned (PAGE_SIZE))); |
59 | static wchar_t klog[KLOG_LENGTH] __attribute__ ((aligned (PAGE_SIZE))); |
61 | 60 | ||
62 | /** Kernel log initialized */ |
61 | /** Kernel log initialized */ |
63 | static bool klog_inited = false; |
62 | static bool klog_inited = false; |
64 | /** First kernel log characters */ |
63 | /** First kernel log characters */ |
65 | static index_t klog_start = 0; |
64 | static index_t klog_start = 0; |
66 | /** Number of valid kernel log characters */ |
65 | /** Number of valid kernel log characters */ |
67 | static size_t klog_len = 0; |
66 | static size_t klog_len = 0; |
68 | /** Number of stored (not printed) kernel log characters */ |
67 | /** Number of stored (not printed) kernel log characters */ |
69 | static size_t klog_stored = 0; |
68 | static size_t klog_stored = 0; |
70 | /** Number of stored kernel log characters for uspace */ |
69 | /** Number of stored kernel log characters for uspace */ |
71 | static size_t klog_uspace = 0; |
70 | static size_t klog_uspace = 0; |
72 | 71 | ||
73 | /** Silence output */ |
- | |
74 | bool silent = false; |
- | |
75 | - | ||
76 | /** Kernel log spinlock */ |
72 | /** Kernel log spinlock */ |
77 | SPINLOCK_INITIALIZE(klog_lock); |
73 | SPINLOCK_INITIALIZE(klog_lock); |
78 | 74 | ||
79 | /** Physical memory area used for klog buffer */ |
75 | /** Physical memory area used for klog buffer */ |
80 | static parea_t klog_parea; |
76 | static parea_t klog_parea; |
81 | 77 | ||
- | 78 | static indev_operations_t stdin_ops = { |
|
- | 79 | .poll = NULL |
|
- | 80 | }; |
|
- | 81 | ||
- | 82 | /** Silence output */ |
|
- | 83 | bool silent = false; |
|
- | 84 | ||
82 | /** Standard input and output character devices */ |
85 | /** Standard input and output character devices */ |
83 | indev_t *stdin = NULL; |
86 | indev_t *stdin = NULL; |
84 | outdev_t *stdout = NULL; |
87 | outdev_t *stdout = NULL; |
85 | 88 | ||
- | 89 | indev_t *stdin_wire(void) |
|
- | 90 | { |
|
- | 91 | if (stdin == NULL) { |
|
- | 92 | stdin = malloc(sizeof(indev_t), FRAME_ATOMIC); |
|
- | 93 | if (stdin != NULL) |
|
- | 94 | indev_initialize("stdin", stdin, &stdin_ops); |
|
- | 95 | } |
|
- | 96 | ||
- | 97 | return stdin; |
|
- | 98 | } |
|
- | 99 | ||
86 | /** Initialize kernel logging facility |
100 | /** Initialize kernel logging facility |
87 | * |
101 | * |
88 | * The shared area contains kernel cyclic buffer. Userspace application may |
102 | * The shared area contains kernel cyclic buffer. Userspace application may |
89 | * be notified on new data with indication of position and size |
103 | * be notified on new data with indication of position and size |
90 | * of the data within the circular buffer. |
104 | * of the data within the circular buffer. |
91 | * |
105 | * |
92 | */ |
106 | */ |
93 | void klog_init(void) |
107 | void klog_init(void) |
94 | { |
108 | { |
95 | void *faddr = (void *) KA2PA(klog); |
109 | void *faddr = (void *) KA2PA(klog); |
96 | 110 | ||
97 | ASSERT((uintptr_t) faddr % FRAME_SIZE == 0); |
111 | ASSERT((uintptr_t) faddr % FRAME_SIZE == 0); |
98 | 112 | ||
99 | klog_parea.pbase = (uintptr_t) faddr; |
113 | klog_parea.pbase = (uintptr_t) faddr; |
100 | klog_parea.frames = SIZE2FRAMES(sizeof(klog)); |
114 | klog_parea.frames = SIZE2FRAMES(sizeof(klog)); |
101 | ddi_parea_register(&klog_parea); |
115 | ddi_parea_register(&klog_parea); |
102 | 116 | ||
103 | sysinfo_set_item_val("klog.faddr", NULL, (unative_t) faddr); |
117 | sysinfo_set_item_val("klog.faddr", NULL, (unative_t) faddr); |
104 | sysinfo_set_item_val("klog.pages", NULL, KLOG_PAGES); |
118 | sysinfo_set_item_val("klog.pages", NULL, KLOG_PAGES); |
105 | 119 | ||
106 | spinlock_lock(&klog_lock); |
120 | spinlock_lock(&klog_lock); |
107 | klog_inited = true; |
121 | klog_inited = true; |
108 | spinlock_unlock(&klog_lock); |
122 | spinlock_unlock(&klog_lock); |
109 | } |
123 | } |
110 | 124 | ||
111 | void grab_console(void) |
125 | void grab_console(void) |
112 | { |
126 | { |
- | 127 | bool prev = silent; |
|
- | 128 | ||
113 | silent = false; |
129 | silent = false; |
114 | arch_grab_console(); |
130 | arch_grab_console(); |
- | 131 | ||
- | 132 | /* Force the console to print the prompt */ |
|
- | 133 | if ((stdin) && (prev)) |
|
- | 134 | indev_push_character(stdin, '\n'); |
|
115 | } |
135 | } |
116 | 136 | ||
117 | void release_console(void) |
137 | void release_console(void) |
118 | { |
138 | { |
119 | silent = true; |
139 | silent = true; |
120 | arch_release_console(); |
140 | arch_release_console(); |
121 | } |
141 | } |
122 | 142 | ||
123 | /** Tell kernel to get keyboard/console access again */ |
143 | /** Tell kernel to get keyboard/console access again */ |
124 | unative_t sys_debug_enable_console(void) |
144 | unative_t sys_debug_enable_console(void) |
125 | { |
145 | { |
126 | #ifdef CONFIG_KCONSOLE |
146 | #ifdef CONFIG_KCONSOLE |
127 | grab_console(); |
147 | grab_console(); |
128 | return true; |
148 | return true; |
129 | #else |
149 | #else |
130 | return false; |
150 | return false; |
131 | #endif |
151 | #endif |
132 | } |
152 | } |
133 | 153 | ||
134 | /** Tell kernel to relinquish keyboard/console access */ |
154 | /** Tell kernel to relinquish keyboard/console access */ |
135 | unative_t sys_debug_disable_console(void) |
155 | unative_t sys_debug_disable_console(void) |
136 | { |
156 | { |
137 | release_console(); |
157 | release_console(); |
138 | return true; |
158 | return true; |
139 | } |
159 | } |
140 | 160 | ||
141 | bool check_poll(indev_t *indev) |
- | |
142 | { |
- | |
143 | if (indev == NULL) |
- | |
144 | return false; |
- | |
145 | - | ||
146 | if (indev->op == NULL) |
- | |
147 | return false; |
- | |
148 | - | ||
149 | return (indev->op->poll != NULL); |
- | |
150 | } |
- | |
151 | - | ||
152 | /** Get character from input character device. Do not echo character. |
- | |
153 | * |
- | |
154 | * @param indev Input character device. |
- | |
155 | * @return Character read. |
- | |
156 | * |
- | |
157 | */ |
- | |
158 | wchar_t _getc(indev_t *indev) |
- | |
159 | { |
- | |
160 | if (atomic_get(&haltstate)) { |
- | |
161 | /* If we are here, we are hopefully on the processor that |
- | |
162 | * issued the 'halt' command, so proceed to read the character |
- | |
163 | * directly from input |
- | |
164 | */ |
- | |
165 | if (check_poll(indev)) |
- | |
166 | return indev->op->poll(indev); |
- | |
167 | - | ||
168 | /* No other way of interacting with user */ |
- | |
169 | interrupts_disable(); |
- | |
170 | - | ||
171 | if (CPU) |
- | |
172 | printf("cpu%u: ", CPU->id); |
- | |
173 | else |
- | |
174 | printf("cpu: "); |
- | |
175 | printf("halted (no polling input)\n"); |
- | |
176 | cpu_halt(); |
- | |
177 | } |
- | |
178 | - | ||
179 | waitq_sleep(&indev->wq); |
- | |
180 | ipl_t ipl = interrupts_disable(); |
- | |
181 | spinlock_lock(&indev->lock); |
- | |
182 | wchar_t ch = indev->buffer[(indev->index - indev->counter) % INDEV_BUFLEN]; |
- | |
183 | indev->counter--; |
- | |
184 | spinlock_unlock(&indev->lock); |
- | |
185 | interrupts_restore(ipl); |
- | |
186 | - | ||
187 | return ch; |
- | |
188 | } |
- | |
189 | - | ||
190 | /** Get string from input character device. |
161 | /** Get string from input character device. |
191 | * |
162 | * |
192 | * Read characters from input character device until first occurrence |
163 | * Read characters from input character device until first occurrence |
193 | * of newline character. |
164 | * of newline character. |
194 | * |
165 | * |
195 | * @param indev Input character device. |
166 | * @param indev Input character device. |
196 | * @param buf Buffer where to store string terminated by NULL. |
167 | * @param buf Buffer where to store string terminated by NULL. |
197 | * @param buflen Size of the buffer. |
168 | * @param buflen Size of the buffer. |
198 | * |
169 | * |
199 | * @return Number of characters read. |
170 | * @return Number of characters read. |
200 | * |
171 | * |
201 | */ |
172 | */ |
202 | count_t gets(indev_t *indev, char *buf, size_t buflen) |
173 | count_t gets(indev_t *indev, char *buf, size_t buflen) |
203 | { |
174 | { |
204 | size_t offset = 0; |
175 | size_t offset = 0; |
205 | count_t count = 0; |
176 | count_t count = 0; |
206 | buf[offset] = 0; |
177 | buf[offset] = 0; |
207 | 178 | ||
208 | wchar_t ch; |
179 | wchar_t ch; |
209 | while ((ch = _getc(indev)) != '\n') { |
180 | while ((ch = indev_pop_character(indev)) != '\n') { |
210 | if (ch == '\b') { |
181 | if (ch == '\b') { |
211 | if (count > 0) { |
182 | if (count > 0) { |
212 | /* Space, backspace, space */ |
183 | /* Space, backspace, space */ |
213 | putchar('\b'); |
184 | putchar('\b'); |
214 | putchar(' '); |
185 | putchar(' '); |
215 | putchar('\b'); |
186 | putchar('\b'); |
216 | 187 | ||
217 | count--; |
188 | count--; |
218 | offset = str_lsize(buf, count); |
189 | offset = str_lsize(buf, count); |
219 | buf[offset] = 0; |
190 | buf[offset] = 0; |
220 | } |
191 | } |
221 | } |
192 | } |
222 | if (chr_encode(ch, buf, &offset, buflen - 1) == EOK) { |
193 | if (chr_encode(ch, buf, &offset, buflen - 1) == EOK) { |
223 | putchar(ch); |
194 | putchar(ch); |
224 | count++; |
195 | count++; |
225 | buf[offset] = 0; |
196 | buf[offset] = 0; |
226 | } |
197 | } |
227 | } |
198 | } |
228 | 199 | ||
229 | return count; |
200 | return count; |
230 | } |
201 | } |
231 | 202 | ||
232 | /** Get character from input device & echo it to screen */ |
203 | /** Get character from input device & echo it to screen */ |
233 | wchar_t getc(indev_t *indev) |
204 | wchar_t getc(indev_t *indev) |
234 | { |
205 | { |
235 | wchar_t ch = _getc(indev); |
206 | wchar_t ch = indev_pop_character(indev); |
236 | putchar(ch); |
207 | putchar(ch); |
237 | return ch; |
208 | return ch; |
238 | } |
209 | } |
239 | 210 | ||
240 | void klog_update(void) |
211 | void klog_update(void) |
241 | { |
212 | { |
242 | spinlock_lock(&klog_lock); |
213 | spinlock_lock(&klog_lock); |
243 | 214 | ||
244 | if ((klog_inited) && (event_is_subscribed(EVENT_KLOG)) && (klog_uspace > 0)) { |
215 | if ((klog_inited) && (event_is_subscribed(EVENT_KLOG)) && (klog_uspace > 0)) { |
245 | event_notify_3(EVENT_KLOG, klog_start, klog_len, klog_uspace); |
216 | event_notify_3(EVENT_KLOG, klog_start, klog_len, klog_uspace); |
246 | klog_uspace = 0; |
217 | klog_uspace = 0; |
247 | } |
218 | } |
248 | 219 | ||
249 | spinlock_unlock(&klog_lock); |
220 | spinlock_unlock(&klog_lock); |
250 | } |
221 | } |
251 | 222 | ||
252 | void putchar(const wchar_t ch) |
223 | void putchar(const wchar_t ch) |
253 | { |
224 | { |
254 | spinlock_lock(&klog_lock); |
225 | spinlock_lock(&klog_lock); |
255 | 226 | ||
256 | if ((klog_stored > 0) && (stdout) && (stdout->op->write)) { |
227 | if ((klog_stored > 0) && (stdout) && (stdout->op->write)) { |
257 | /* Print charaters stored in kernel log */ |
228 | /* Print charaters stored in kernel log */ |
258 | index_t i; |
229 | index_t i; |
259 | for (i = klog_len - klog_stored; i < klog_len; i++) |
230 | for (i = klog_len - klog_stored; i < klog_len; i++) |
260 | stdout->op->write(stdout, klog[(klog_start + i) % KLOG_LENGTH], silent); |
231 | stdout->op->write(stdout, klog[(klog_start + i) % KLOG_LENGTH], silent); |
261 | klog_stored = 0; |
232 | klog_stored = 0; |
262 | } |
233 | } |
263 | 234 | ||
264 | /* Store character in the cyclic kernel log */ |
235 | /* Store character in the cyclic kernel log */ |
265 | klog[(klog_start + klog_len) % KLOG_LENGTH] = ch; |
236 | klog[(klog_start + klog_len) % KLOG_LENGTH] = ch; |
266 | if (klog_len < KLOG_LENGTH) |
237 | if (klog_len < KLOG_LENGTH) |
267 | klog_len++; |
238 | klog_len++; |
268 | else |
239 | else |
269 | klog_start = (klog_start + 1) % KLOG_LENGTH; |
240 | klog_start = (klog_start + 1) % KLOG_LENGTH; |
270 | 241 | ||
271 | if ((stdout) && (stdout->op->write)) |
242 | if ((stdout) && (stdout->op->write)) |
272 | stdout->op->write(stdout, ch, silent); |
243 | stdout->op->write(stdout, ch, silent); |
273 | else { |
244 | else { |
274 | /* The character is just in the kernel log */ |
245 | /* The character is just in the kernel log */ |
275 | if (klog_stored < klog_len) |
246 | if (klog_stored < klog_len) |
276 | klog_stored++; |
247 | klog_stored++; |
277 | } |
248 | } |
278 | 249 | ||
279 | /* The character is stored for uspace */ |
250 | /* The character is stored for uspace */ |
280 | if (klog_uspace < klog_len) |
251 | if (klog_uspace < klog_len) |
281 | klog_uspace++; |
252 | klog_uspace++; |
282 | 253 | ||
283 | /* Check notify uspace to update */ |
254 | /* Check notify uspace to update */ |
284 | bool update; |
255 | bool update; |
285 | if ((klog_uspace > KLOG_LATENCY) || (ch == '\n')) |
256 | if ((klog_uspace > KLOG_LATENCY) || (ch == '\n')) |
286 | update = true; |
257 | update = true; |
287 | else |
258 | else |
288 | update = false; |
259 | update = false; |
289 | 260 | ||
290 | spinlock_unlock(&klog_lock); |
261 | spinlock_unlock(&klog_lock); |
291 | 262 | ||
292 | if (update) |
263 | if (update) |
293 | klog_update(); |
264 | klog_update(); |
294 | } |
265 | } |
295 | 266 | ||
296 | /** Print using kernel facility |
267 | /** Print using kernel facility |
297 | * |
268 | * |
298 | * Print to kernel log. |
269 | * Print to kernel log. |
299 | * |
270 | * |
300 | */ |
271 | */ |
301 | unative_t sys_klog(int fd, const void *buf, size_t size) |
272 | unative_t sys_klog(int fd, const void *buf, size_t size) |
302 | { |
273 | { |
303 | char *data; |
274 | char *data; |
304 | int rc; |
275 | int rc; |
305 | 276 | ||
306 | if (size > PAGE_SIZE) |
277 | if (size > PAGE_SIZE) |
307 | return ELIMIT; |
278 | return ELIMIT; |
308 | 279 | ||
309 | if (size > 0) { |
280 | if (size > 0) { |
310 | data = (char *) malloc(size + 1, 0); |
281 | data = (char *) malloc(size + 1, 0); |
311 | if (!data) |
282 | if (!data) |
312 | return ENOMEM; |
283 | return ENOMEM; |
313 | 284 | ||
314 | rc = copy_from_uspace(data, buf, size); |
285 | rc = copy_from_uspace(data, buf, size); |
315 | if (rc) { |
286 | if (rc) { |
316 | free(data); |
287 | free(data); |
317 | return rc; |
288 | return rc; |
318 | } |
289 | } |
319 | data[size] = 0; |
290 | data[size] = 0; |
320 | 291 | ||
321 | printf("%s", data); |
292 | printf("%s", data); |
322 | free(data); |
293 | free(data); |
323 | } else |
294 | } else |
324 | klog_update(); |
295 | klog_update(); |
325 | 296 | ||
326 | return size; |
297 | return size; |
327 | } |
298 | } |
328 | 299 | ||
329 | /** @} |
300 | /** @} |
330 | */ |
301 | */ |
331 | 302 |