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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 <print.h> |
47 | #include <print.h> |
48 | #include <putchar.h> |
48 | #include <putchar.h> |
49 | #include <atomic.h> |
49 | #include <atomic.h> |
50 | #include <syscall/copy.h> |
50 | #include <syscall/copy.h> |
51 | #include <errno.h> |
51 | #include <errno.h> |
52 | #include <string.h> |
52 | #include <string.h> |
53 | 53 | ||
54 | #define KLOG_PAGES 4 |
54 | #define KLOG_PAGES 4 |
55 | #define KLOG_LENGTH (KLOG_PAGES * PAGE_SIZE / sizeof(wchar_t)) |
55 | #define KLOG_LENGTH (KLOG_PAGES * PAGE_SIZE / sizeof(wchar_t)) |
56 | #define KLOG_LATENCY 8 |
56 | #define KLOG_LATENCY 8 |
57 | 57 | ||
58 | /** Kernel log cyclic buffer */ |
58 | /** Kernel log cyclic buffer */ |
59 | static wchar_t klog[KLOG_LENGTH] __attribute__ ((aligned (PAGE_SIZE))); |
59 | static wchar_t klog[KLOG_LENGTH] __attribute__ ((aligned (PAGE_SIZE))); |
60 | 60 | ||
61 | /** Kernel log initialized */ |
61 | /** Kernel log initialized */ |
62 | static bool klog_inited = false; |
62 | static bool klog_inited = false; |
63 | /** First kernel log characters */ |
63 | /** First kernel log characters */ |
64 | static index_t klog_start = 0; |
64 | static index_t klog_start = 0; |
65 | /** Number of valid kernel log characters */ |
65 | /** Number of valid kernel log characters */ |
66 | static size_t klog_len = 0; |
66 | static size_t klog_len = 0; |
67 | /** Number of stored (not printed) kernel log characters */ |
67 | /** Number of stored (not printed) kernel log characters */ |
68 | static size_t klog_stored = 0; |
68 | static size_t klog_stored = 0; |
69 | /** Number of stored kernel log characters for uspace */ |
69 | /** Number of stored kernel log characters for uspace */ |
70 | static size_t klog_uspace = 0; |
70 | static size_t klog_uspace = 0; |
71 | 71 | ||
72 | /** Kernel log spinlock */ |
72 | /** Kernel log spinlock */ |
73 | SPINLOCK_INITIALIZE(klog_lock); |
73 | SPINLOCK_INITIALIZE(klog_lock); |
74 | 74 | ||
75 | /** Physical memory area used for klog buffer */ |
75 | /** Physical memory area used for klog buffer */ |
76 | static parea_t klog_parea; |
76 | static parea_t klog_parea; |
77 | 77 | ||
78 | static indev_operations_t stdin_ops = { |
78 | static indev_operations_t stdin_ops = { |
79 | .poll = NULL |
79 | .poll = NULL |
80 | }; |
80 | }; |
81 | 81 | ||
82 | /** Silence output */ |
82 | /** Silence output */ |
83 | bool silent = false; |
83 | bool silent = false; |
84 | 84 | ||
85 | /** Standard input and output character devices */ |
85 | /** Standard input and output character devices */ |
86 | indev_t *stdin = NULL; |
86 | indev_t *stdin = NULL; |
87 | outdev_t *stdout = NULL; |
87 | outdev_t *stdout = NULL; |
88 | 88 | ||
89 | indev_t *stdin_wire(void) |
89 | indev_t *stdin_wire(void) |
90 | { |
90 | { |
91 | if (stdin == NULL) { |
91 | if (stdin == NULL) { |
92 | stdin = malloc(sizeof(indev_t), FRAME_ATOMIC); |
92 | stdin = malloc(sizeof(indev_t), FRAME_ATOMIC); |
93 | if (stdin != NULL) |
93 | if (stdin != NULL) |
94 | indev_initialize("stdin", stdin, &stdin_ops); |
94 | indev_initialize("stdin", stdin, &stdin_ops); |
95 | } |
95 | } |
96 | 96 | ||
97 | return stdin; |
97 | return stdin; |
98 | } |
98 | } |
99 | 99 | ||
100 | /** Initialize kernel logging facility |
100 | /** Initialize kernel logging facility |
101 | * |
101 | * |
102 | * The shared area contains kernel cyclic buffer. Userspace application may |
102 | * The shared area contains kernel cyclic buffer. Userspace application may |
103 | * be notified on new data with indication of position and size |
103 | * be notified on new data with indication of position and size |
104 | * of the data within the circular buffer. |
104 | * of the data within the circular buffer. |
105 | * |
105 | * |
106 | */ |
106 | */ |
107 | void klog_init(void) |
107 | void klog_init(void) |
108 | { |
108 | { |
109 | void *faddr = (void *) KA2PA(klog); |
109 | void *faddr = (void *) KA2PA(klog); |
110 | 110 | ||
111 | ASSERT((uintptr_t) faddr % FRAME_SIZE == 0); |
111 | ASSERT((uintptr_t) faddr % FRAME_SIZE == 0); |
112 | 112 | ||
113 | klog_parea.pbase = (uintptr_t) faddr; |
113 | klog_parea.pbase = (uintptr_t) faddr; |
114 | klog_parea.frames = SIZE2FRAMES(sizeof(klog)); |
114 | klog_parea.frames = SIZE2FRAMES(sizeof(klog)); |
115 | ddi_parea_register(&klog_parea); |
115 | ddi_parea_register(&klog_parea); |
116 | 116 | ||
117 | sysinfo_set_item_val("klog.faddr", NULL, (unative_t) faddr); |
117 | sysinfo_set_item_val("klog.faddr", NULL, (unative_t) faddr); |
118 | sysinfo_set_item_val("klog.pages", NULL, KLOG_PAGES); |
118 | sysinfo_set_item_val("klog.pages", NULL, KLOG_PAGES); |
119 | 119 | ||
120 | spinlock_lock(&klog_lock); |
120 | spinlock_lock(&klog_lock); |
121 | klog_inited = true; |
121 | klog_inited = true; |
122 | spinlock_unlock(&klog_lock); |
122 | spinlock_unlock(&klog_lock); |
123 | } |
123 | } |
124 | 124 | ||
125 | void grab_console(void) |
125 | void grab_console(void) |
126 | { |
126 | { |
127 | silent = false; |
127 | silent = false; |
128 | arch_grab_console(); |
128 | arch_grab_console(); |
- | 129 | ||
- | 130 | /* Force the console to print the prompt */ |
|
- | 131 | if (stdin) |
|
- | 132 | indev_push_character(stdin, '\n'); |
|
129 | } |
133 | } |
130 | 134 | ||
131 | void release_console(void) |
135 | void release_console(void) |
132 | { |
136 | { |
133 | silent = true; |
137 | silent = true; |
134 | arch_release_console(); |
138 | arch_release_console(); |
135 | } |
139 | } |
136 | 140 | ||
137 | /** Tell kernel to get keyboard/console access again */ |
141 | /** Tell kernel to get keyboard/console access again */ |
138 | unative_t sys_debug_enable_console(void) |
142 | unative_t sys_debug_enable_console(void) |
139 | { |
143 | { |
140 | #ifdef CONFIG_KCONSOLE |
144 | #ifdef CONFIG_KCONSOLE |
141 | grab_console(); |
145 | grab_console(); |
142 | return true; |
146 | return true; |
143 | #else |
147 | #else |
144 | return false; |
148 | return false; |
145 | #endif |
149 | #endif |
146 | } |
150 | } |
147 | 151 | ||
148 | /** Tell kernel to relinquish keyboard/console access */ |
152 | /** Tell kernel to relinquish keyboard/console access */ |
149 | unative_t sys_debug_disable_console(void) |
153 | unative_t sys_debug_disable_console(void) |
150 | { |
154 | { |
151 | release_console(); |
155 | release_console(); |
152 | return true; |
156 | return true; |
153 | } |
157 | } |
154 | 158 | ||
155 | /** Get string from input character device. |
159 | /** Get string from input character device. |
156 | * |
160 | * |
157 | * Read characters from input character device until first occurrence |
161 | * Read characters from input character device until first occurrence |
158 | * of newline character. |
162 | * of newline character. |
159 | * |
163 | * |
160 | * @param indev Input character device. |
164 | * @param indev Input character device. |
161 | * @param buf Buffer where to store string terminated by NULL. |
165 | * @param buf Buffer where to store string terminated by NULL. |
162 | * @param buflen Size of the buffer. |
166 | * @param buflen Size of the buffer. |
163 | * |
167 | * |
164 | * @return Number of characters read. |
168 | * @return Number of characters read. |
165 | * |
169 | * |
166 | */ |
170 | */ |
167 | count_t gets(indev_t *indev, char *buf, size_t buflen) |
171 | count_t gets(indev_t *indev, char *buf, size_t buflen) |
168 | { |
172 | { |
169 | size_t offset = 0; |
173 | size_t offset = 0; |
170 | count_t count = 0; |
174 | count_t count = 0; |
171 | buf[offset] = 0; |
175 | buf[offset] = 0; |
172 | 176 | ||
173 | wchar_t ch; |
177 | wchar_t ch; |
174 | while ((ch = indev_pop_character(indev)) != '\n') { |
178 | while ((ch = indev_pop_character(indev)) != '\n') { |
175 | if (ch == '\b') { |
179 | if (ch == '\b') { |
176 | if (count > 0) { |
180 | if (count > 0) { |
177 | /* Space, backspace, space */ |
181 | /* Space, backspace, space */ |
178 | putchar('\b'); |
182 | putchar('\b'); |
179 | putchar(' '); |
183 | putchar(' '); |
180 | putchar('\b'); |
184 | putchar('\b'); |
181 | 185 | ||
182 | count--; |
186 | count--; |
183 | offset = str_lsize(buf, count); |
187 | offset = str_lsize(buf, count); |
184 | buf[offset] = 0; |
188 | buf[offset] = 0; |
185 | } |
189 | } |
186 | } |
190 | } |
187 | if (chr_encode(ch, buf, &offset, buflen - 1) == EOK) { |
191 | if (chr_encode(ch, buf, &offset, buflen - 1) == EOK) { |
188 | putchar(ch); |
192 | putchar(ch); |
189 | count++; |
193 | count++; |
190 | buf[offset] = 0; |
194 | buf[offset] = 0; |
191 | } |
195 | } |
192 | } |
196 | } |
193 | 197 | ||
194 | return count; |
198 | return count; |
195 | } |
199 | } |
196 | 200 | ||
197 | /** Get character from input device & echo it to screen */ |
201 | /** Get character from input device & echo it to screen */ |
198 | wchar_t getc(indev_t *indev) |
202 | wchar_t getc(indev_t *indev) |
199 | { |
203 | { |
200 | wchar_t ch = indev_pop_character(indev); |
204 | wchar_t ch = indev_pop_character(indev); |
201 | putchar(ch); |
205 | putchar(ch); |
202 | return ch; |
206 | return ch; |
203 | } |
207 | } |
204 | 208 | ||
205 | void klog_update(void) |
209 | void klog_update(void) |
206 | { |
210 | { |
207 | spinlock_lock(&klog_lock); |
211 | spinlock_lock(&klog_lock); |
208 | 212 | ||
209 | if ((klog_inited) && (event_is_subscribed(EVENT_KLOG)) && (klog_uspace > 0)) { |
213 | if ((klog_inited) && (event_is_subscribed(EVENT_KLOG)) && (klog_uspace > 0)) { |
210 | event_notify_3(EVENT_KLOG, klog_start, klog_len, klog_uspace); |
214 | event_notify_3(EVENT_KLOG, klog_start, klog_len, klog_uspace); |
211 | klog_uspace = 0; |
215 | klog_uspace = 0; |
212 | } |
216 | } |
213 | 217 | ||
214 | spinlock_unlock(&klog_lock); |
218 | spinlock_unlock(&klog_lock); |
215 | } |
219 | } |
216 | 220 | ||
217 | void putchar(const wchar_t ch) |
221 | void putchar(const wchar_t ch) |
218 | { |
222 | { |
219 | spinlock_lock(&klog_lock); |
223 | spinlock_lock(&klog_lock); |
220 | 224 | ||
221 | if ((klog_stored > 0) && (stdout) && (stdout->op->write)) { |
225 | if ((klog_stored > 0) && (stdout) && (stdout->op->write)) { |
222 | /* Print charaters stored in kernel log */ |
226 | /* Print charaters stored in kernel log */ |
223 | index_t i; |
227 | index_t i; |
224 | for (i = klog_len - klog_stored; i < klog_len; i++) |
228 | for (i = klog_len - klog_stored; i < klog_len; i++) |
225 | stdout->op->write(stdout, klog[(klog_start + i) % KLOG_LENGTH], silent); |
229 | stdout->op->write(stdout, klog[(klog_start + i) % KLOG_LENGTH], silent); |
226 | klog_stored = 0; |
230 | klog_stored = 0; |
227 | } |
231 | } |
228 | 232 | ||
229 | /* Store character in the cyclic kernel log */ |
233 | /* Store character in the cyclic kernel log */ |
230 | klog[(klog_start + klog_len) % KLOG_LENGTH] = ch; |
234 | klog[(klog_start + klog_len) % KLOG_LENGTH] = ch; |
231 | if (klog_len < KLOG_LENGTH) |
235 | if (klog_len < KLOG_LENGTH) |
232 | klog_len++; |
236 | klog_len++; |
233 | else |
237 | else |
234 | klog_start = (klog_start + 1) % KLOG_LENGTH; |
238 | klog_start = (klog_start + 1) % KLOG_LENGTH; |
235 | 239 | ||
236 | if ((stdout) && (stdout->op->write)) |
240 | if ((stdout) && (stdout->op->write)) |
237 | stdout->op->write(stdout, ch, silent); |
241 | stdout->op->write(stdout, ch, silent); |
238 | else { |
242 | else { |
239 | /* The character is just in the kernel log */ |
243 | /* The character is just in the kernel log */ |
240 | if (klog_stored < klog_len) |
244 | if (klog_stored < klog_len) |
241 | klog_stored++; |
245 | klog_stored++; |
242 | } |
246 | } |
243 | 247 | ||
244 | /* The character is stored for uspace */ |
248 | /* The character is stored for uspace */ |
245 | if (klog_uspace < klog_len) |
249 | if (klog_uspace < klog_len) |
246 | klog_uspace++; |
250 | klog_uspace++; |
247 | 251 | ||
248 | /* Check notify uspace to update */ |
252 | /* Check notify uspace to update */ |
249 | bool update; |
253 | bool update; |
250 | if ((klog_uspace > KLOG_LATENCY) || (ch == '\n')) |
254 | if ((klog_uspace > KLOG_LATENCY) || (ch == '\n')) |
251 | update = true; |
255 | update = true; |
252 | else |
256 | else |
253 | update = false; |
257 | update = false; |
254 | 258 | ||
255 | spinlock_unlock(&klog_lock); |
259 | spinlock_unlock(&klog_lock); |
256 | 260 | ||
257 | if (update) |
261 | if (update) |
258 | klog_update(); |
262 | klog_update(); |
259 | } |
263 | } |
260 | 264 | ||
261 | /** Print using kernel facility |
265 | /** Print using kernel facility |
262 | * |
266 | * |
263 | * Print to kernel log. |
267 | * Print to kernel log. |
264 | * |
268 | * |
265 | */ |
269 | */ |
266 | unative_t sys_klog(int fd, const void *buf, size_t size) |
270 | unative_t sys_klog(int fd, const void *buf, size_t size) |
267 | { |
271 | { |
268 | char *data; |
272 | char *data; |
269 | int rc; |
273 | int rc; |
270 | 274 | ||
271 | if (size > PAGE_SIZE) |
275 | if (size > PAGE_SIZE) |
272 | return ELIMIT; |
276 | return ELIMIT; |
273 | 277 | ||
274 | if (size > 0) { |
278 | if (size > 0) { |
275 | data = (char *) malloc(size + 1, 0); |
279 | data = (char *) malloc(size + 1, 0); |
276 | if (!data) |
280 | if (!data) |
277 | return ENOMEM; |
281 | return ENOMEM; |
278 | 282 | ||
279 | rc = copy_from_uspace(data, buf, size); |
283 | rc = copy_from_uspace(data, buf, size); |
280 | if (rc) { |
284 | if (rc) { |
281 | free(data); |
285 | free(data); |
282 | return rc; |
286 | return rc; |
283 | } |
287 | } |
284 | data[size] = 0; |
288 | data[size] = 0; |
285 | 289 | ||
286 | printf("%s", data); |
290 | printf("%s", data); |
287 | free(data); |
291 | free(data); |
288 | } else |
292 | } else |
289 | klog_update(); |
293 | klog_update(); |
290 | 294 | ||
291 | return size; |
295 | return size; |
292 | } |
296 | } |
293 | 297 | ||
294 | /** @} |
298 | /** @} |
295 | */ |
299 | */ |
296 | 300 |