063ae4be |
1 | /* |
2 | * pandora live info |
3 | * (C) notaz, 2014 |
4 | * |
5 | * This work is licensed under the terms of 3-clause BSD license. |
6 | * See COPYING file in the top-level directory. |
7 | */ |
8 | |
9 | #include <stdio.h> |
15f42220 |
10 | #include <stdlib.h> |
063ae4be |
11 | #include <string.h> |
12 | #include <stdarg.h> |
13 | #include <pthread.h> |
14 | #include <sys/types.h> |
15 | #include <sys/stat.h> |
16 | #include <fcntl.h> |
17 | #include <sys/ioctl.h> |
18 | #include <sys/mman.h> |
19 | #include <unistd.h> |
20 | #include <sys/time.h> |
21 | #include <time.h> |
22 | #include <sys/socket.h> |
23 | #include <sys/un.h> |
24 | #include <signal.h> |
25 | #include <poll.h> |
26 | #include <linux/fb.h> |
27 | #include <linux/omapfb.h> |
28 | #include <stdint.h> |
29 | #include "fonts.h" |
30 | |
31 | #define SCREEN_WIDTH 800 |
32 | #define SCREEN_HEIGHT 480 |
33 | #define WIDTH 80 |
34 | #define HEIGHT 480 |
35 | #define MEM_SIZE (((WIDTH * HEIGHT * 2 * 2) + 0xfff) & ~0xfff) |
36 | #define Y_STEP 9 |
37 | |
38 | static struct fb_var_screeninfo g_vi; |
39 | static uint16_t *g_screen_base, *g_screen; |
40 | static unsigned int g_old_mem; |
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41 | static int g_flip_id; |
42 | static int g_exit, g_hide; |
43 | static pthread_cond_t g_cond; |
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44 | |
b7d8fc1a |
45 | #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0])) |
063ae4be |
46 | #define IS_START(buf, str) \ |
47 | !strncmp(buf, str, sizeof(str) - 1) |
48 | |
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49 | static void clear_bytes(void *mem, int bytes); |
50 | |
51 | static int setup_layer(int fd) |
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52 | { |
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53 | struct omapfb_plane_info pi; |
54 | struct omapfb_mem_info mi; |
55 | struct omapfb_color_key key; |
56 | int ret; |
57 | |
15f42220 |
58 | ret = ioctl(fd, OMAPFB_QUERY_PLANE, &pi); |
063ae4be |
59 | if (ret < 0) { |
60 | perror("ioctl OMAPFB_QUERY_PLANE"); |
61 | return 1; |
62 | } |
63 | |
15f42220 |
64 | ret = ioctl(fd, OMAPFB_QUERY_MEM, &mi); |
063ae4be |
65 | if (ret < 0) { |
66 | perror("ioctl OMAPFB_QUERY_MEM"); |
67 | return 1; |
68 | } |
69 | |
70 | /* must disable when changing stuff */ |
71 | if (pi.enabled) { |
72 | pi.enabled = 0; |
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73 | ret = ioctl(fd, OMAPFB_SETUP_PLANE, &pi); |
063ae4be |
74 | if (ret < 0) { |
75 | perror("ioctl OMAPFB_SETUP_PLANE (d)"); |
76 | return 1; |
77 | } |
78 | } |
79 | |
80 | g_old_mem = mi.size; |
81 | if (mi.size < MEM_SIZE) { |
82 | mi.size = MEM_SIZE; |
15f42220 |
83 | ret = ioctl(fd, OMAPFB_SETUP_MEM, &mi); |
063ae4be |
84 | if (ret < 0) { |
85 | perror("ioctl SETUP_MEM"); |
86 | return 1; |
87 | } |
88 | } |
89 | |
90 | pi.pos_x = SCREEN_WIDTH - WIDTH; |
91 | pi.pos_y = 0; |
92 | pi.out_width = WIDTH; |
93 | pi.out_height = HEIGHT; |
15f42220 |
94 | ret = ioctl(fd, OMAPFB_SETUP_PLANE, &pi); |
063ae4be |
95 | if (ret < 0) { |
96 | perror("ioctl OMAPFB_SETUP_PLANE (e1)"); |
97 | return 1; |
98 | } |
99 | |
15f42220 |
100 | ret = ioctl(fd, FBIOGET_VSCREENINFO, &g_vi); |
063ae4be |
101 | if (ret < 0) { |
102 | perror("ioctl FBIOGET_VSCREENINFO"); |
103 | return 1; |
104 | } |
105 | |
106 | g_vi.xres = g_vi.xres_virtual = WIDTH; |
107 | g_vi.yres = HEIGHT; |
108 | g_vi.yres_virtual = HEIGHT * 2; |
109 | g_vi.bits_per_pixel = 16; |
110 | |
15f42220 |
111 | ret = ioctl(fd, FBIOPUT_VSCREENINFO, &g_vi); |
063ae4be |
112 | if (ret < 0) { |
113 | perror("ioctl FBIOPUT_VSCREENINFO"); |
114 | return 1; |
115 | } |
116 | |
117 | pi.enabled = 1; |
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118 | ret = ioctl(fd, OMAPFB_SETUP_PLANE, &pi); |
063ae4be |
119 | if (ret < 0) { |
120 | perror("ioctl OMAPFB_SETUP_PLANE (e2)"); |
121 | return 1; |
122 | } |
123 | |
124 | memset(&key, 0, sizeof(key)); |
125 | key.key_type = OMAPFB_COLOR_KEY_VID_SRC; |
126 | key.trans_key = 0x07e0; |
127 | |
15f42220 |
128 | ret = ioctl(fd, OMAPFB_SET_COLOR_KEY, &key); |
129 | if (ret < 0) { |
130 | perror("ioctl OMAPFB_SET_COLOR_KEY"); |
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131 | return 1; |
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132 | } |
133 | |
134 | g_screen_base = mmap(NULL, MEM_SIZE, PROT_READ | PROT_WRITE, |
135 | MAP_SHARED, fd, 0); |
136 | if (g_screen_base == MAP_FAILED) { |
137 | perror("mmap"); |
138 | g_screen = g_screen_base = NULL; |
139 | return 1; |
140 | } |
141 | clear_bytes(g_screen_base, MEM_SIZE); |
142 | g_screen = g_screen_base; |
143 | g_flip_id = 0; |
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144 | |
145 | return 0; |
146 | } |
147 | |
15f42220 |
148 | static int check_layer(int fd) |
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149 | { |
150 | struct omapfb_plane_info pi; |
151 | int ret; |
152 | |
15f42220 |
153 | ret = ioctl(fd, OMAPFB_QUERY_PLANE, &pi); |
063ae4be |
154 | if (ret < 0) { |
155 | perror("ioctl OMAPFB_QUERY_PLANE"); |
156 | return 1; |
157 | } |
158 | |
159 | if (!pi.enabled) { |
160 | printf("something disabled the layer (tv-out?), quitting\n"); |
161 | return 1; |
162 | } |
163 | |
164 | return 0; |
165 | } |
166 | |
15f42220 |
167 | static void remove_layer(int fd) |
063ae4be |
168 | { |
169 | struct omapfb_plane_info pi; |
170 | struct omapfb_mem_info mi; |
171 | int ret; |
172 | |
15f42220 |
173 | if (g_screen_base != NULL) { |
174 | munmap(g_screen_base, MEM_SIZE); |
175 | g_screen = g_screen_base = NULL; |
176 | } |
177 | |
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178 | memset(&pi, 0, sizeof(pi)); |
179 | pi.enabled = 0; |
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180 | ret = ioctl(fd, OMAPFB_SETUP_PLANE, &pi); |
063ae4be |
181 | if (ret < 0) |
182 | perror("ioctl OMAPFB_SETUP_PLANE (c)"); |
183 | |
15f42220 |
184 | ret = ioctl(fd, OMAPFB_QUERY_MEM, &mi); |
063ae4be |
185 | if (ret < 0) { |
186 | perror("ioctl OMAPFB_QUERY_MEM"); |
187 | goto out; |
188 | } |
189 | |
190 | if (mi.size != g_old_mem) { |
191 | mi.size = g_old_mem; |
15f42220 |
192 | ret = ioctl(fd, OMAPFB_SETUP_MEM, &mi); |
063ae4be |
193 | if (ret < 0) { |
194 | perror("ioctl SETUP_MEM"); |
195 | goto out; |
196 | } |
197 | } |
198 | |
15f42220 |
199 | out:; |
063ae4be |
200 | } |
201 | |
15f42220 |
202 | static void flip_fb(int fd) |
063ae4be |
203 | { |
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204 | g_vi.yoffset = g_flip_id * HEIGHT; |
205 | ioctl(fd, FBIOPAN_DISPLAY, &g_vi); |
206 | g_flip_id ^= 1; |
207 | g_screen = g_screen_base + g_flip_id * WIDTH * HEIGHT; |
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208 | } |
209 | |
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210 | static void handle_term(int num) |
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211 | { |
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212 | g_exit = 1; |
213 | pthread_cond_signal(&g_cond); |
214 | } |
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215 | |
15f42220 |
216 | static void handle_usr1(int num) |
217 | { |
218 | g_hide = !g_hide; |
219 | pthread_cond_signal(&g_cond); |
063ae4be |
220 | } |
221 | |
b7d8fc1a |
222 | static struct { |
223 | char text[16]; |
224 | int idle; |
225 | } user_msgs[16]; |
226 | |
227 | static int handle_socket(int sock) |
228 | { |
229 | char buf[256], *p; |
230 | int i, ret; |
231 | |
232 | ret = recv(sock, buf, sizeof(buf) - 1, 0); |
233 | if (ret < 0) { |
234 | perror("recv"); |
235 | return ret; |
236 | } |
237 | if (ret == 0) |
238 | return 0; |
239 | |
240 | buf[ret] = 0; |
241 | p = strchr(buf, ':'); |
242 | if (p != NULL) { |
243 | for (i = 0; i < ARRAY_SIZE(user_msgs); i++) { |
244 | if (user_msgs[i].text[0] == 0) |
245 | break; |
246 | if (!strncmp(user_msgs[i].text, buf, p - buf + 1)) |
247 | break; |
248 | } |
249 | if (i == ARRAY_SIZE(user_msgs)) { |
250 | printf("out of user_msg slots\n"); |
251 | return 0; |
252 | } |
253 | memcpy(user_msgs[i].text, buf, sizeof(user_msgs[i].text) - 1); |
254 | user_msgs[i].text[sizeof(user_msgs[i].text) - 1] = 0; |
255 | user_msgs[i].idle = 0; |
256 | } |
257 | else if (!strcmp(buf, "poke")) { |
258 | // if hidden, show up |
259 | // if visible, exit |
260 | if (g_hide) { |
261 | g_hide = 0; |
262 | return 1; |
263 | } |
264 | g_exit = 1; |
265 | return 1; |
266 | } |
267 | else if (!strcmp(buf, "hide")) { |
268 | g_hide = 1; |
269 | return 1; |
270 | } |
271 | else if (!strcmp(buf, "show")) { |
272 | g_hide = 0; |
273 | return 1; |
274 | } |
275 | else if (!strcmp(buf, "quit")) { |
276 | g_exit = 1; |
277 | return 1; |
278 | } |
279 | else { |
280 | printf("unknown command: '%s'\n", buf); |
281 | } |
282 | |
283 | return 0; |
284 | } |
285 | |
063ae4be |
286 | #define s_printf(x, y, fmt, ...) \ |
287 | basic_text_out16(g_screen, WIDTH, x, y, fmt, ##__VA_ARGS__); |
288 | |
289 | static int read_int_file(const char *fn, int *val) |
290 | { |
291 | FILE *f; |
292 | int ret; |
293 | |
294 | *val = 0; |
295 | f = fopen(fn, "r"); |
296 | if (f == NULL) |
297 | return 1; |
298 | ret = fscanf(f, "%d", val); |
299 | fclose(f); |
300 | if (ret != 1) |
301 | return 1; |
302 | |
303 | return 0; |
304 | } |
305 | |
15f42220 |
306 | static void clear_bytes(void *mem, int bytes) |
063ae4be |
307 | { |
15f42220 |
308 | int *p = mem; |
309 | int l = bytes / 4; |
063ae4be |
310 | |
311 | for (; l >= 4; l -= 4, p += 4) |
312 | p[0] = p[1] = p[2] = p[3] = 0x07e007e0; |
313 | for (; l > 0; l--, p++) |
314 | *p = 0x07e007e0; |
315 | } |
316 | |
15f42220 |
317 | static void clear(int h) |
318 | { |
319 | clear_bytes(g_screen, WIDTH * h * 2); |
320 | } |
321 | |
063ae4be |
322 | struct proc_stat { |
323 | unsigned long idlesum; |
324 | unsigned long sys; |
325 | unsigned long irqs; |
326 | unsigned long ctxt; |
327 | }; |
328 | |
329 | static struct { |
330 | struct proc_stat last_st; |
331 | int cpu_usage; |
332 | int cpu_sys; |
333 | int irqs; |
334 | int ctxt; |
335 | int mem_free; |
336 | int mem_huge; |
337 | int mem_free_swap; |
338 | } stats; |
339 | |
340 | static void collect_proc_stat(void) |
341 | { |
342 | static long hz; |
343 | struct proc_stat st; |
344 | char buf[256]; |
345 | unsigned long wait; |
346 | unsigned long iowait; |
347 | FILE *f; |
348 | |
349 | if (hz == 0) { |
350 | hz = sysconf(_SC_CLK_TCK); |
351 | printf("hz: %ld\n", hz); |
352 | } |
353 | |
354 | f = fopen("/proc/stat", "r"); |
355 | if (f == NULL) |
356 | return; |
357 | |
358 | if (fscanf(f, "cpu %*s %*s %lu %lu %lu", |
359 | &st.sys, &wait, &iowait) != 3) |
360 | goto out; |
361 | do { |
362 | if (fgets(buf, sizeof(buf), f) == NULL) |
363 | goto out; |
364 | } while (fscanf(f, "intr %lu", &st.irqs) != 1); |
365 | do { |
366 | if (fgets(buf, sizeof(buf), f) == NULL) |
367 | goto out; |
368 | } while (fscanf(f, "ctxt %lu", &st.ctxt) != 1); |
369 | |
370 | st.idlesum = wait + iowait; |
371 | |
372 | stats.cpu_usage = hz - (st.idlesum - stats.last_st.idlesum); |
373 | stats.cpu_sys = st.sys - stats.last_st.sys; |
374 | if (hz != 100) { |
375 | stats.cpu_usage = stats.cpu_usage * 100 / hz; |
376 | stats.cpu_sys = stats.cpu_sys * 100 / hz; |
377 | } |
378 | stats.irqs = st.irqs - stats.last_st.irqs; |
379 | stats.ctxt = st.ctxt - stats.last_st.ctxt; |
380 | |
381 | out: |
382 | stats.last_st = st; |
383 | fclose(f); |
384 | } |
385 | |
386 | static void collect_mem_stat(void) |
387 | { |
388 | static const char fn[] = "/proc/meminfo"; |
389 | uint32_t total = 0, free = 0, buffers = 0, cached = 0; |
390 | uint32_t anonhuge = 0, hugetot = 0, hugefree = 0, hugepgsz = 0; |
391 | uint32_t free_swap = 0; |
392 | char buf[128]; |
393 | FILE *f; |
394 | |
395 | f = fopen(fn, "r"); |
396 | if (f == NULL) |
397 | return; |
398 | |
399 | while (fgets(buf, sizeof(buf), f)) { |
400 | if (total == 0 && sscanf(buf, "MemTotal: %u", &total) == 1) |
401 | continue; |
402 | if (free == 0 && sscanf(buf, "MemFree: %u", &free) == 1) |
403 | continue; |
404 | if (buffers == 0 && sscanf(buf, "Buffers: %u", &buffers) == 1) |
405 | continue; |
406 | if (cached == 0 && sscanf(buf, "Cached: %u", &cached) == 1) |
407 | continue; |
408 | if (free_swap == 0 && sscanf(buf, "SwapFree: %u", &free_swap) == 1) |
409 | continue; |
410 | if (anonhuge == 0 && sscanf(buf, "AnonHugePages: %u", &anonhuge) == 1) |
411 | continue; |
412 | if (hugetot == 0 && sscanf(buf, "HugePages_Total: %u", &hugetot) == 1) |
413 | continue; |
414 | if (hugefree == 0 && sscanf(buf, "HugePages_Free: %u", &hugefree) == 1) |
415 | continue; |
416 | if (hugepgsz == 0 && sscanf(buf, "Hugepagesize: %u", &hugepgsz) == 1) |
417 | continue; |
418 | } |
419 | |
420 | fclose(f); |
421 | |
422 | hugetot = (hugetot - hugefree) * hugepgsz; |
423 | free += buffers + cached; |
424 | stats.mem_free = free >> 10; |
425 | stats.mem_huge = hugetot >> 10; |
426 | stats.mem_free_swap = free_swap >> 10; |
427 | } |
428 | |
429 | struct io_stat { |
430 | unsigned long sec_r; |
431 | unsigned long sec_w; |
432 | }; |
433 | |
434 | static struct { |
435 | struct io_stat last_st; |
436 | int read; // kB/s |
437 | int write; |
438 | } io_stats; |
439 | |
440 | static void collect_io_stat(void) |
441 | { |
442 | unsigned long sec_r, sec_w; |
443 | struct io_stat st = { 0, }; |
444 | char buf[128]; |
445 | FILE *f; |
446 | int i; |
447 | |
448 | for (i = 0; i < 2; i++) { |
449 | snprintf(buf, sizeof(buf), "/sys/block/mmcblk%d/stat", i); |
450 | f = fopen(buf, "r"); |
451 | if (f == NULL) |
452 | continue; |
453 | |
454 | if (fscanf(f, "%*s %*s %lu %*s %*s %*s %lu", |
455 | &sec_r, &sec_w) == 2) |
456 | { |
457 | st.sec_r += sec_r; |
458 | st.sec_w += sec_w; |
459 | } |
460 | fclose(f); |
461 | } |
462 | |
463 | io_stats.read = st.sec_r - io_stats.last_st.sec_r; |
464 | io_stats.write = st.sec_w - io_stats.last_st.sec_w; |
465 | // assuming 512 byte sectors.. |
466 | io_stats.read >>= 1; |
467 | io_stats.write >>= 1; |
468 | |
469 | io_stats.last_st = st; |
470 | } |
471 | |
472 | struct net_stat { |
473 | unsigned long rx; |
474 | unsigned long tx; |
475 | }; |
476 | |
477 | static struct { |
478 | struct net_stat last_st; |
479 | int down; // kB/s |
480 | int up; |
481 | int have_wlan; |
482 | int link; |
483 | int level; |
484 | } net_stats; |
485 | |
486 | static void collect_net_stat(void) |
487 | { |
488 | struct net_stat st = { 0, }; |
489 | unsigned long rx, tx; |
490 | int found = 0; |
491 | char buf[256]; |
492 | FILE *f; |
493 | |
494 | net_stats.down = net_stats.up = |
495 | net_stats.have_wlan = net_stats.link = net_stats.level = 0; |
496 | |
497 | f = fopen("/proc/net/dev", "r"); |
498 | if (f == NULL) |
499 | return; |
500 | |
501 | while (!feof(f)) { |
502 | static const char fmt[] = |
503 | "%255s %lu %*s %*s %*s %*s %*s %*s %lu"; |
504 | if (fscanf(f, fmt, buf, &rx, &tx) != 3) |
505 | continue; |
506 | if (IS_START(buf, "lo")) |
507 | continue; |
508 | st.rx += rx; |
509 | st.tx += tx; |
510 | found = 1; |
511 | } |
512 | fclose(f); |
513 | |
514 | if (found) { |
515 | net_stats.down = st.rx - net_stats.last_st.rx; |
516 | net_stats.up = st.tx - net_stats.last_st.tx; |
517 | } |
518 | net_stats.last_st = st; |
519 | |
520 | f = fopen("/proc/net/wireless", "r"); |
521 | if (f == NULL) |
522 | return; |
523 | |
524 | while (!feof(f)) { |
525 | int lnk, lvl; |
526 | if (fscanf(f, "%255s %*x %d. %d.", buf, &lnk, &lvl) != 3) |
527 | continue; |
528 | if (IS_START(buf, "lo")) |
529 | continue; |
530 | // first one should be enough |
531 | net_stats.have_wlan = 1; |
532 | net_stats.link = lnk; |
533 | net_stats.level = lvl; |
534 | break; |
535 | } |
536 | fclose(f); |
537 | } |
538 | |
539 | static void collect_stats(void) |
540 | { |
541 | collect_proc_stat(); |
542 | collect_mem_stat(); |
543 | collect_io_stat(); |
544 | collect_net_stat(); |
545 | } |
546 | |
547 | static char cpu_reg_path[64]; |
548 | |
549 | static void init_stats(void) |
550 | { |
551 | char buf[64]; |
552 | int found; |
553 | FILE *f; |
554 | int i; |
555 | |
556 | // find the CPU regulator |
557 | for (i = found = 0; ; i++) { |
558 | snprintf(buf, sizeof(buf), |
559 | "/sys/class/regulator/regulator.%d/name", i); |
560 | f = fopen(buf, "r"); |
561 | if (f == NULL) |
562 | break; |
563 | fgets(buf, sizeof(buf), f); |
564 | fclose(f); |
565 | if (IS_START(buf, "vdd_mpu")) { |
566 | found = 1; |
567 | break; |
568 | } |
569 | } |
570 | |
571 | if (found) |
572 | snprintf(cpu_reg_path, sizeof(cpu_reg_path), |
573 | "/sys/class/regulator/regulator.%d/microvolts", i); |
574 | |
575 | // do collect so differential stats get sane values |
576 | collect_stats(); |
577 | } |
578 | |
579 | static void get_time(int x, int y) |
580 | { |
581 | struct timeval tv; |
582 | struct tm *t; |
583 | char buf[16]; |
584 | |
585 | gettimeofday(&tv, NULL); |
586 | t = localtime(&tv.tv_sec); |
587 | strftime(buf, sizeof(buf), "%T", t); |
588 | s_printf(x, y, " %s", buf); |
589 | } |
590 | |
591 | static void get_cpu(int x, int y) |
592 | { |
593 | s_printf(x, y, "CPU:%5d%%", stats.cpu_usage); |
594 | } |
595 | |
596 | static void get_sys(int x, int y) |
597 | { |
598 | s_printf(x, y, "SYS:%5d%%", stats.cpu_sys); |
599 | } |
600 | |
601 | static void get_irq(int x, int y) |
602 | { |
603 | s_printf(x, y, "IRQ:%5u", stats.irqs); |
604 | } |
605 | |
606 | static void get_cs(int x, int y) |
607 | { |
608 | s_printf(x, y, "CS:%6u", stats.ctxt); |
609 | } |
610 | |
611 | static void get_cpuf(int x, int y) |
612 | { |
613 | static const char fn[] = |
614 | "/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq"; |
615 | int f; |
616 | |
617 | if (read_int_file(fn, &f)) |
618 | return; |
619 | s_printf(x, y, "f:%7dM", f / 1000); |
620 | } |
621 | |
622 | static void get_cpuv(int x, int y) |
623 | { |
624 | int v = 0; |
625 | |
626 | if (!cpu_reg_path[0] || read_int_file(cpu_reg_path, &v)) |
627 | return; |
628 | s_printf(x, y, "V:%7.3fV", (float)v / 1000000.0f); |
629 | } |
630 | |
631 | static void get_memfree(int x, int y) |
632 | { |
633 | s_printf(x, y, "M:%7dM", stats.mem_free); |
634 | } |
635 | |
636 | static void get_memhuge(int x, int y) |
637 | { |
638 | s_printf(x, y, "H:%7dM", stats.mem_huge); |
639 | } |
640 | |
641 | static void get_memswap(int x, int y) |
642 | { |
643 | s_printf(x, y, "S:%7dM", stats.mem_free_swap); |
644 | } |
645 | |
646 | #define PS_BASE "/sys/class/power_supply/bq27500-0/" |
647 | |
648 | static void get_bcap(int x, int y) |
649 | { |
650 | static const char fnc[] = PS_BASE "capacity"; |
651 | int c; |
652 | |
653 | if (read_int_file(fnc, &c)) |
654 | return; |
655 | s_printf(x, y, "C:%7d%%", c); |
656 | } |
657 | |
658 | static void get_btime(int x, int y) |
659 | { |
660 | static const char fne[] = PS_BASE "time_to_empty_now"; |
661 | static const char fnf[] = PS_BASE "time_to_full_now"; |
662 | int t = 0; |
663 | |
664 | if (read_int_file(fne, &t) || t == 0) { |
665 | if (read_int_file(fnf, &t)) |
666 | return; |
667 | } |
668 | s_printf(x, y, "t:%4d:%02d", t / 3600, t / 60 % 60); |
669 | } |
670 | |
671 | static void get_bvolts(int x, int y) |
672 | { |
673 | static const char fnv[] = PS_BASE "voltage_now"; |
674 | int volt = 0; |
675 | |
676 | if (read_int_file(fnv, &volt)) |
677 | return; |
678 | |
679 | s_printf(x, y, "V:%7.3fV", (float)volt / 1000000.0f); |
680 | } |
681 | |
682 | static void get_bwatts(int x, int y) |
683 | { |
684 | static const char fnc[] = PS_BASE "current_now"; |
685 | static const char fnv[] = PS_BASE "voltage_now"; |
686 | int w, cur = 0, volt = 0; |
687 | |
688 | if (read_int_file(fnc, &cur)) |
689 | return; |
690 | if (read_int_file(fnv, &volt)) |
691 | return; |
692 | |
693 | w = (cur / 1000) * (volt / 1000); |
694 | s_printf(x, y, "P:%7.3fW", (float)w / 1000000.0f); |
695 | } |
696 | |
697 | static void get_btemp(int x, int y) |
698 | { |
699 | static const char fnt[] = PS_BASE "temp"; |
700 | int t; |
701 | |
702 | if (read_int_file(fnt, &t)) |
703 | return; |
704 | s_printf(x, y, "T:%7.1fC", (float)t / 10.0f); |
705 | } |
706 | |
707 | static void get_ioread(int x, int y) |
708 | { |
709 | s_printf(x, y, "R:%5.1fM/s", (float)io_stats.read / 1000.0f); |
710 | } |
711 | |
712 | static void get_iowrite(int x, int y) |
713 | { |
714 | s_printf(x, y, "W:%5.1fM/s", (float)io_stats.write / 1000.0f); |
715 | } |
716 | |
717 | static void get_netdown(int x, int y) |
718 | { |
719 | s_printf(x, y, "D:%5uK/s", net_stats.down / 1000); |
720 | } |
721 | |
722 | static void get_netup(int x, int y) |
723 | { |
724 | s_printf(x, y, "U:%5uK/s", net_stats.up / 1000); |
725 | } |
726 | |
727 | static void get_netsgnl(int x, int y) |
728 | { |
729 | s_printf(x, y, "S:%5ddBm", net_stats.level); |
730 | } |
731 | |
732 | int main(int argc, char *argv[]) |
733 | { |
15f42220 |
734 | static const char socket_name[] = "\0liveinfo"; |
735 | static const char fbname[] = "/dev/fb2"; |
063ae4be |
736 | pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER; |
063ae4be |
737 | pthread_condattr_t condattr; |
738 | struct sockaddr_un sun; |
739 | struct timespec ts; |
740 | struct pollfd pfd; |
15f42220 |
741 | const char *p; |
742 | int is_hidden = 0; |
063ae4be |
743 | int y = 0, y_max = 0; |
15f42220 |
744 | int fd = -1; |
063ae4be |
745 | int sock; |
b7d8fc1a |
746 | int i, ret; |
063ae4be |
747 | |
748 | // look for other instance |
b7d8fc1a |
749 | sock = socket(PF_UNIX, SOCK_DGRAM, 0); |
063ae4be |
750 | if (sock == -1) { |
751 | perror("socket PF_UNIX"); |
752 | return 1; |
753 | } |
754 | |
755 | memset(&sun, 0, sizeof(sun)); |
756 | sun.sun_family = AF_UNIX; |
757 | memcpy(sun.sun_path, socket_name, sizeof(socket_name)); |
758 | |
759 | ret = connect(sock, (struct sockaddr *)&sun, sizeof(sun)); |
760 | if (ret == 0) { |
15f42220 |
761 | printf("other instance detected, sending poke command\n"); |
b7d8fc1a |
762 | ret = send(sock, "poke", 4, 0); |
763 | if (ret != 4) |
063ae4be |
764 | perror("send"); |
765 | close(sock); |
b7d8fc1a |
766 | return ret == 4 ? 0 : 1; |
15f42220 |
767 | } |
768 | |
769 | fd = open(fbname, O_RDWR); |
770 | if (fd == -1) { |
771 | fprintf(stderr, "open %s: ", fbname); |
772 | perror(NULL); |
773 | return 1; |
063ae4be |
774 | } |
775 | |
15f42220 |
776 | nice(-1); |
777 | |
778 | // no need for privileges any more |
779 | p = getenv("SUDO_UID"); |
780 | if (p != NULL) { |
781 | ret = atoi(p); |
782 | if (ret != 0) { |
783 | ret = setuid(ret); |
784 | if (ret) |
785 | perror("setuid"); |
786 | } |
787 | } |
788 | |
789 | // bind/listen for commands |
063ae4be |
790 | ret = bind(sock, (struct sockaddr *)&sun, sizeof(sun)); |
791 | if (ret != 0) { |
792 | perror("bind"); |
793 | close(sock); |
794 | return 1; |
795 | } |
796 | |
b7d8fc1a |
797 | #if 0 |
063ae4be |
798 | ret = listen(sock, 1); |
799 | if (ret != 0) { |
800 | perror("listen"); |
801 | close(sock); |
802 | return 1; |
803 | } |
b7d8fc1a |
804 | #endif |
063ae4be |
805 | |
806 | pfd.fd = sock; |
807 | pfd.events = POLLIN | POLLPRI; |
808 | pfd.revents = 0; |
809 | |
063ae4be |
810 | ret = pthread_condattr_init(&condattr); |
811 | ret |= pthread_condattr_setclock(&condattr, CLOCK_MONOTONIC); |
15f42220 |
812 | ret |= pthread_cond_init(&g_cond, &condattr); |
063ae4be |
813 | pthread_condattr_destroy(&condattr); |
814 | if (ret != 0) { |
815 | fprintf(stderr, "cond init failed\n"); |
816 | return 1; |
817 | } |
818 | |
15f42220 |
819 | ret = setup_layer(fd); |
063ae4be |
820 | if (ret) |
821 | return ret; |
822 | |
15f42220 |
823 | // clean up on kill too |
824 | signal(SIGTERM, handle_term); |
825 | signal(SIGUSR1, handle_usr1); |
063ae4be |
826 | |
827 | pthread_mutex_lock(&mutex); |
828 | ret = clock_gettime(CLOCK_MONOTONIC, &ts); |
829 | if (ret != 0) { |
830 | perror("clock_gettime CLOCK_MONOTONIC"); |
831 | return 1; |
832 | } |
833 | |
063ae4be |
834 | init_stats(); |
835 | |
15f42220 |
836 | while (!g_exit) |
837 | { |
b7d8fc1a |
838 | // anything on unix socket? |
839 | ret = poll(&pfd, 1, 0); |
840 | if (ret < 0) { |
841 | perror("poll"); |
842 | break; |
843 | } |
844 | if (ret > 0) { |
845 | ret = handle_socket(sock); |
846 | if (ret < 0) |
847 | break; |
848 | continue; |
849 | } |
850 | |
15f42220 |
851 | // handle hiding |
852 | if (g_hide) { |
853 | if (!is_hidden) { |
854 | remove_layer(fd); |
855 | is_hidden = 1; |
856 | } |
857 | goto do_sleep; |
858 | } |
859 | else if (is_hidden) { |
860 | ret = setup_layer(fd); |
861 | if (ret) |
862 | break; |
863 | is_hidden = 0; |
864 | } |
865 | |
b7d8fc1a |
866 | if (check_layer(fd) != 0) |
867 | break; |
868 | |
063ae4be |
869 | collect_stats(); |
870 | |
871 | y += Y_STEP; |
872 | if (y > y_max) |
873 | y_max = y; |
874 | clear(y_max); |
875 | |
876 | y = 0; |
877 | get_time (0, y += Y_STEP); |
878 | y += Y_STEP / 2; |
879 | get_cpu (0, y += Y_STEP); |
880 | get_sys (0, y += Y_STEP); |
881 | get_irq (0, y += Y_STEP); |
882 | get_cs (0, y += Y_STEP); |
883 | get_cpuf (0, y += Y_STEP); |
884 | get_cpuv (0, y += Y_STEP); |
885 | y += Y_STEP / 2; |
886 | s_printf(0, y += Y_STEP, "mem"); |
887 | get_memfree(0, y += Y_STEP); |
888 | get_memswap(0, y += Y_STEP); |
889 | if (stats.mem_huge) |
890 | get_memhuge(0, y += Y_STEP); |
891 | y += Y_STEP / 2; |
892 | s_printf(0, y += Y_STEP, "i/o"); |
893 | get_ioread (0, y += Y_STEP); |
894 | get_iowrite(0, y += Y_STEP); |
895 | y += Y_STEP / 2; |
896 | s_printf(0, y += Y_STEP, "net"); |
897 | get_netdown(0, y += Y_STEP); |
898 | get_netup (0, y += Y_STEP); |
899 | if (net_stats.have_wlan) |
900 | get_netsgnl(0, y += Y_STEP); |
901 | y += Y_STEP / 2; |
902 | s_printf(0, y += Y_STEP, "batt"); |
903 | get_bcap (0, y += Y_STEP); |
904 | get_btime (0, y += Y_STEP); |
905 | get_bvolts (0, y += Y_STEP); |
906 | get_bwatts (0, y += Y_STEP); |
907 | get_btemp (0, y += Y_STEP); |
908 | |
b7d8fc1a |
909 | // print user messages |
910 | y += Y_STEP; |
911 | for (i = 0; i < ARRAY_SIZE(user_msgs); i++) { |
912 | if (user_msgs[i].text[0] == 0) |
913 | break; |
914 | user_msgs[i].idle++; |
915 | if (user_msgs[i].idle > 6) { |
916 | // drop old entry, shift others up |
917 | memmove(&user_msgs[i], &user_msgs[i + 1], |
918 | (ARRAY_SIZE(user_msgs) - i - 1) * sizeof(user_msgs[0])); |
919 | user_msgs[ARRAY_SIZE(user_msgs) - 1].text[0] = 0; |
920 | // reprocess |
921 | i--; |
922 | continue; |
923 | } |
15f42220 |
924 | |
b7d8fc1a |
925 | s_printf(0, y += Y_STEP, user_msgs[i].text); |
063ae4be |
926 | } |
927 | |
b7d8fc1a |
928 | flip_fb(fd); |
929 | |
15f42220 |
930 | do_sleep: |
063ae4be |
931 | ts.tv_sec++; |
15f42220 |
932 | pthread_cond_timedwait(&g_cond, &mutex, &ts); |
063ae4be |
933 | } |
934 | |
15f42220 |
935 | remove_layer(fd); |
936 | close(fd); |
063ae4be |
937 | close(sock); |
938 | |
939 | return 0; |
940 | } |
941 | |
942 | // vim:expandtab:sw=2:ts=2 |