| 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> |
| 10 | #include <stdlib.h> |
| 11 | #include <string.h> |
| 12 | #include <stdarg.h> |
| 13 | #include <ctype.h> |
| 14 | #include <pthread.h> |
| 15 | #include <sys/types.h> |
| 16 | #include <sys/stat.h> |
| 17 | #include <fcntl.h> |
| 18 | #include <sys/ioctl.h> |
| 19 | #include <sys/mman.h> |
| 20 | #include <unistd.h> |
| 21 | #include <sys/time.h> |
| 22 | #include <time.h> |
| 23 | #include <sys/socket.h> |
| 24 | #include <sys/un.h> |
| 25 | #include <signal.h> |
| 26 | #include <poll.h> |
| 27 | #include <linux/fb.h> |
| 28 | #include <linux/omapfb.h> |
| 29 | #include <stdint.h> |
| 30 | #include "fonts.h" |
| 31 | |
| 32 | #define SCREEN_WIDTH 800 |
| 33 | #define SCREEN_HEIGHT 480 |
| 34 | #define WIDTH 80 |
| 35 | #define HEIGHT 480 |
| 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 struct { |
| 41 | int x, y, w, h; |
| 42 | } g_layer; |
| 43 | static unsigned int g_mem_size; |
| 44 | static unsigned int g_old_mem; |
| 45 | static int g_flip_id; |
| 46 | static int g_exit, g_hide; |
| 47 | static pthread_cond_t g_cond; |
| 48 | |
| 49 | #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0])) |
| 50 | #define PAGE_ALIGN(x) (((x) + 0xfff) & ~0xfff) |
| 51 | #define IS_START(buf, str) \ |
| 52 | !strncmp(buf, str, sizeof(str) - 1) |
| 53 | |
| 54 | static void clear_bytes(void *mem, int bytes); |
| 55 | |
| 56 | static int setup_layer(int fd) |
| 57 | { |
| 58 | struct omapfb_plane_info pi; |
| 59 | struct omapfb_mem_info mi; |
| 60 | struct omapfb_color_key key; |
| 61 | int ret; |
| 62 | |
| 63 | ret = ioctl(fd, OMAPFB_QUERY_PLANE, &pi); |
| 64 | if (ret < 0) { |
| 65 | perror("ioctl OMAPFB_QUERY_PLANE"); |
| 66 | return 1; |
| 67 | } |
| 68 | |
| 69 | ret = ioctl(fd, OMAPFB_QUERY_MEM, &mi); |
| 70 | if (ret < 0) { |
| 71 | perror("ioctl OMAPFB_QUERY_MEM"); |
| 72 | return 1; |
| 73 | } |
| 74 | |
| 75 | /* must disable when changing stuff */ |
| 76 | if (pi.enabled) { |
| 77 | pi.enabled = 0; |
| 78 | ret = ioctl(fd, OMAPFB_SETUP_PLANE, &pi); |
| 79 | if (ret < 0) { |
| 80 | perror("ioctl OMAPFB_SETUP_PLANE (d)"); |
| 81 | return 1; |
| 82 | } |
| 83 | } |
| 84 | |
| 85 | g_old_mem = mi.size; |
| 86 | g_mem_size = PAGE_ALIGN(g_layer.w * g_layer.h * 2 * 2); |
| 87 | if (mi.size < g_mem_size) { |
| 88 | mi.size = g_mem_size; |
| 89 | ret = ioctl(fd, OMAPFB_SETUP_MEM, &mi); |
| 90 | if (ret < 0) { |
| 91 | perror("ioctl SETUP_MEM"); |
| 92 | return 1; |
| 93 | } |
| 94 | } |
| 95 | |
| 96 | printf("layer: %d %d %d %d\n", |
| 97 | g_layer.x, g_layer.y, g_layer.w, g_layer.h); |
| 98 | |
| 99 | pi.pos_x = g_layer.x; |
| 100 | pi.pos_y = g_layer.y; |
| 101 | pi.out_width = g_layer.w; |
| 102 | pi.out_height = g_layer.h; |
| 103 | ret = ioctl(fd, OMAPFB_SETUP_PLANE, &pi); |
| 104 | if (ret < 0) { |
| 105 | perror("ioctl OMAPFB_SETUP_PLANE (e1)"); |
| 106 | return 1; |
| 107 | } |
| 108 | |
| 109 | ret = ioctl(fd, FBIOGET_VSCREENINFO, &g_vi); |
| 110 | if (ret < 0) { |
| 111 | perror("ioctl FBIOGET_VSCREENINFO"); |
| 112 | return 1; |
| 113 | } |
| 114 | |
| 115 | g_vi.xres = g_vi.xres_virtual = g_layer.w; |
| 116 | g_vi.yres = g_layer.h; |
| 117 | g_vi.yres_virtual = g_layer.h * 2; |
| 118 | g_vi.bits_per_pixel = 16; |
| 119 | |
| 120 | ret = ioctl(fd, FBIOPUT_VSCREENINFO, &g_vi); |
| 121 | if (ret < 0) { |
| 122 | perror("ioctl FBIOPUT_VSCREENINFO"); |
| 123 | return 1; |
| 124 | } |
| 125 | |
| 126 | pi.enabled = 1; |
| 127 | ret = ioctl(fd, OMAPFB_SETUP_PLANE, &pi); |
| 128 | if (ret < 0) { |
| 129 | perror("ioctl OMAPFB_SETUP_PLANE (e2)"); |
| 130 | return 1; |
| 131 | } |
| 132 | |
| 133 | memset(&key, 0, sizeof(key)); |
| 134 | key.key_type = OMAPFB_COLOR_KEY_VID_SRC; |
| 135 | key.trans_key = 0x07e0; |
| 136 | |
| 137 | ret = ioctl(fd, OMAPFB_SET_COLOR_KEY, &key); |
| 138 | if (ret < 0) { |
| 139 | perror("ioctl OMAPFB_SET_COLOR_KEY"); |
| 140 | return 1; |
| 141 | } |
| 142 | |
| 143 | g_screen_base = mmap(NULL, g_mem_size, PROT_READ | PROT_WRITE, |
| 144 | MAP_SHARED, fd, 0); |
| 145 | if (g_screen_base == MAP_FAILED) { |
| 146 | perror("mmap"); |
| 147 | g_screen = g_screen_base = NULL; |
| 148 | return 1; |
| 149 | } |
| 150 | clear_bytes(g_screen_base, g_mem_size); |
| 151 | g_screen = g_screen_base; |
| 152 | g_flip_id = 0; |
| 153 | |
| 154 | return 0; |
| 155 | } |
| 156 | |
| 157 | static int check_layer(int fd) |
| 158 | { |
| 159 | struct omapfb_plane_info pi; |
| 160 | int ret; |
| 161 | |
| 162 | ret = ioctl(fd, OMAPFB_QUERY_PLANE, &pi); |
| 163 | if (ret < 0) { |
| 164 | perror("ioctl OMAPFB_QUERY_PLANE"); |
| 165 | return 1; |
| 166 | } |
| 167 | |
| 168 | if (!pi.enabled) { |
| 169 | printf("something disabled the layer (tv-out?), quitting\n"); |
| 170 | return 1; |
| 171 | } |
| 172 | |
| 173 | return 0; |
| 174 | } |
| 175 | |
| 176 | static void remove_layer(int fd) |
| 177 | { |
| 178 | struct omapfb_plane_info pi; |
| 179 | struct omapfb_mem_info mi; |
| 180 | int ret; |
| 181 | |
| 182 | if (g_screen_base != NULL) { |
| 183 | munmap(g_screen_base, g_mem_size); |
| 184 | g_screen = g_screen_base = NULL; |
| 185 | } |
| 186 | |
| 187 | memset(&pi, 0, sizeof(pi)); |
| 188 | pi.enabled = 0; |
| 189 | ret = ioctl(fd, OMAPFB_SETUP_PLANE, &pi); |
| 190 | if (ret < 0) |
| 191 | perror("ioctl OMAPFB_SETUP_PLANE (c)"); |
| 192 | |
| 193 | ret = ioctl(fd, OMAPFB_QUERY_MEM, &mi); |
| 194 | if (ret < 0) { |
| 195 | perror("ioctl OMAPFB_QUERY_MEM"); |
| 196 | goto out; |
| 197 | } |
| 198 | |
| 199 | if (mi.size != g_old_mem) { |
| 200 | mi.size = g_old_mem; |
| 201 | ret = ioctl(fd, OMAPFB_SETUP_MEM, &mi); |
| 202 | if (ret < 0) { |
| 203 | perror("ioctl SETUP_MEM"); |
| 204 | goto out; |
| 205 | } |
| 206 | } |
| 207 | |
| 208 | out:; |
| 209 | } |
| 210 | |
| 211 | static void flip_fb(int fd) |
| 212 | { |
| 213 | g_vi.yoffset = g_flip_id * g_layer.h; |
| 214 | ioctl(fd, FBIOPAN_DISPLAY, &g_vi); |
| 215 | g_flip_id ^= 1; |
| 216 | g_screen = g_screen_base + g_flip_id * g_layer.w * g_layer.h; |
| 217 | } |
| 218 | |
| 219 | static void handle_term(int num) |
| 220 | { |
| 221 | g_exit = 1; |
| 222 | pthread_cond_signal(&g_cond); |
| 223 | } |
| 224 | |
| 225 | static void handle_usr1(int num) |
| 226 | { |
| 227 | g_hide = !g_hide; |
| 228 | pthread_cond_signal(&g_cond); |
| 229 | } |
| 230 | |
| 231 | static struct { |
| 232 | char text[16]; |
| 233 | int idle; |
| 234 | } user_msgs[16]; |
| 235 | |
| 236 | static int handle_socket(int sock) |
| 237 | { |
| 238 | char buf[256], *p; |
| 239 | int i, ret; |
| 240 | |
| 241 | ret = recv(sock, buf, sizeof(buf) - 1, 0); |
| 242 | if (ret < 0) { |
| 243 | perror("recv"); |
| 244 | return ret; |
| 245 | } |
| 246 | if (ret == 0) |
| 247 | return 0; |
| 248 | |
| 249 | buf[ret] = 0; |
| 250 | p = strchr(buf, ':'); |
| 251 | if (p != NULL) { |
| 252 | for (i = 0; i < ARRAY_SIZE(user_msgs); i++) { |
| 253 | if (user_msgs[i].text[0] == 0) |
| 254 | break; |
| 255 | if (!strncmp(user_msgs[i].text, buf, p - buf + 1)) |
| 256 | break; |
| 257 | } |
| 258 | if (i == ARRAY_SIZE(user_msgs)) { |
| 259 | printf("out of user_msg slots\n"); |
| 260 | return 0; |
| 261 | } |
| 262 | memcpy(user_msgs[i].text, buf, sizeof(user_msgs[i].text) - 1); |
| 263 | user_msgs[i].text[sizeof(user_msgs[i].text) - 1] = 0; |
| 264 | user_msgs[i].idle = 0; |
| 265 | } |
| 266 | else if (!strcmp(buf, "poke")) { |
| 267 | // if hidden, show up |
| 268 | // if visible, exit |
| 269 | if (g_hide) { |
| 270 | g_hide = 0; |
| 271 | return 1; |
| 272 | } |
| 273 | g_exit = 1; |
| 274 | return 1; |
| 275 | } |
| 276 | else if (!strcmp(buf, "hide")) { |
| 277 | g_hide = 1; |
| 278 | return 1; |
| 279 | } |
| 280 | else if (!strcmp(buf, "show")) { |
| 281 | g_hide = 0; |
| 282 | return 1; |
| 283 | } |
| 284 | else if (!strcmp(buf, "quit")) { |
| 285 | g_exit = 1; |
| 286 | return 1; |
| 287 | } |
| 288 | else { |
| 289 | printf("unknown command: '%s'\n", buf); |
| 290 | } |
| 291 | |
| 292 | return 0; |
| 293 | } |
| 294 | |
| 295 | static void default_config(void) |
| 296 | { |
| 297 | g_layer.x = SCREEN_WIDTH - WIDTH; |
| 298 | g_layer.y = 0; |
| 299 | g_layer.w = WIDTH; |
| 300 | g_layer.h = HEIGHT; |
| 301 | } |
| 302 | |
| 303 | static void handle_config(void) |
| 304 | { |
| 305 | char buf[256], *p; |
| 306 | int x, y, v; |
| 307 | FILE *f; |
| 308 | |
| 309 | default_config(); |
| 310 | |
| 311 | f = fopen("config.cfg", "r"); |
| 312 | if (f == NULL) |
| 313 | return; |
| 314 | |
| 315 | while ((p = fgets(buf, sizeof(buf), f))) { |
| 316 | while (isspace(*p)) |
| 317 | p++; |
| 318 | if (*p == '#' || *p == ';' || *p == 0) |
| 319 | continue; |
| 320 | |
| 321 | if (sscanf(p, "position = %d %d", &x, &y) == 2) { |
| 322 | g_layer.x = x; |
| 323 | g_layer.y = y; |
| 324 | } |
| 325 | else { |
| 326 | printf("unhandled config entry: '%s'\n", p); |
| 327 | } |
| 328 | } |
| 329 | fclose(f); |
| 330 | |
| 331 | v = SCREEN_WIDTH - g_layer.x; |
| 332 | if (v <= 0) { |
| 333 | printf("bad x position in config: %d\n", g_layer.x); |
| 334 | default_config(); |
| 335 | return; |
| 336 | } |
| 337 | if (v < WIDTH) |
| 338 | g_layer.w = v; |
| 339 | |
| 340 | v = SCREEN_HEIGHT - g_layer.y; |
| 341 | if (v <= 0) { |
| 342 | printf("bad y position in config: %d\n", g_layer.y); |
| 343 | default_config(); |
| 344 | return; |
| 345 | } |
| 346 | if (v < HEIGHT) |
| 347 | g_layer.h = v; |
| 348 | } |
| 349 | |
| 350 | #define s_printf(x, y, fmt, ...) do { \ |
| 351 | if ((y) <= g_layer.h - 8) \ |
| 352 | basic_text_out16(g_screen, g_layer.w, x, y, fmt, ##__VA_ARGS__); \ |
| 353 | } while (0) |
| 354 | |
| 355 | static int read_int_file(const char *fn, int *val) |
| 356 | { |
| 357 | FILE *f; |
| 358 | int ret; |
| 359 | |
| 360 | *val = 0; |
| 361 | f = fopen(fn, "r"); |
| 362 | if (f == NULL) |
| 363 | return 1; |
| 364 | ret = fscanf(f, "%d", val); |
| 365 | fclose(f); |
| 366 | if (ret != 1) |
| 367 | return 1; |
| 368 | |
| 369 | return 0; |
| 370 | } |
| 371 | |
| 372 | static void clear_bytes(void *mem, int bytes) |
| 373 | { |
| 374 | int *p = mem; |
| 375 | int l = bytes / 4; |
| 376 | |
| 377 | for (; l >= 4; l -= 4, p += 4) |
| 378 | p[0] = p[1] = p[2] = p[3] = 0x07e007e0; |
| 379 | for (; l > 0; l--, p++) |
| 380 | *p = 0x07e007e0; |
| 381 | } |
| 382 | |
| 383 | static void clear(int h) |
| 384 | { |
| 385 | if (h > g_layer.h) |
| 386 | h = g_layer.h; |
| 387 | |
| 388 | clear_bytes(g_screen, g_layer.w * h * 2); |
| 389 | } |
| 390 | |
| 391 | struct proc_stat { |
| 392 | unsigned long idlesum; |
| 393 | unsigned long sys; |
| 394 | unsigned long irqs; |
| 395 | unsigned long ctxt; |
| 396 | }; |
| 397 | |
| 398 | static struct { |
| 399 | struct proc_stat last_st; |
| 400 | int cpu_usage; |
| 401 | int cpu_sys; |
| 402 | int irqs; |
| 403 | int ctxt; |
| 404 | int mem_free; |
| 405 | int mem_huge; |
| 406 | int mem_free_swap; |
| 407 | } stats; |
| 408 | |
| 409 | static void collect_proc_stat(void) |
| 410 | { |
| 411 | static long hz; |
| 412 | struct proc_stat st; |
| 413 | char buf[256]; |
| 414 | unsigned long wait; |
| 415 | unsigned long iowait; |
| 416 | FILE *f; |
| 417 | |
| 418 | if (hz == 0) { |
| 419 | hz = sysconf(_SC_CLK_TCK); |
| 420 | printf("hz: %ld\n", hz); |
| 421 | } |
| 422 | |
| 423 | f = fopen("/proc/stat", "r"); |
| 424 | if (f == NULL) |
| 425 | return; |
| 426 | |
| 427 | if (fscanf(f, "cpu %*s %*s %lu %lu %lu", |
| 428 | &st.sys, &wait, &iowait) != 3) |
| 429 | goto out; |
| 430 | do { |
| 431 | if (fgets(buf, sizeof(buf), f) == NULL) |
| 432 | goto out; |
| 433 | } while (fscanf(f, "intr %lu", &st.irqs) != 1); |
| 434 | do { |
| 435 | if (fgets(buf, sizeof(buf), f) == NULL) |
| 436 | goto out; |
| 437 | } while (fscanf(f, "ctxt %lu", &st.ctxt) != 1); |
| 438 | |
| 439 | st.idlesum = wait + iowait; |
| 440 | |
| 441 | stats.cpu_usage = hz - (st.idlesum - stats.last_st.idlesum); |
| 442 | stats.cpu_sys = st.sys - stats.last_st.sys; |
| 443 | if (hz != 100) { |
| 444 | stats.cpu_usage = stats.cpu_usage * 100 / hz; |
| 445 | stats.cpu_sys = stats.cpu_sys * 100 / hz; |
| 446 | } |
| 447 | stats.irqs = st.irqs - stats.last_st.irqs; |
| 448 | stats.ctxt = st.ctxt - stats.last_st.ctxt; |
| 449 | |
| 450 | out: |
| 451 | stats.last_st = st; |
| 452 | fclose(f); |
| 453 | } |
| 454 | |
| 455 | static void collect_mem_stat(void) |
| 456 | { |
| 457 | static const char fn[] = "/proc/meminfo"; |
| 458 | uint32_t total = 0, free = 0, buffers = 0, cached = 0; |
| 459 | uint32_t anonhuge = 0, hugetot = 0, hugefree = 0, hugepgsz = 0; |
| 460 | uint32_t free_swap = 0; |
| 461 | char buf[128]; |
| 462 | FILE *f; |
| 463 | |
| 464 | f = fopen(fn, "r"); |
| 465 | if (f == NULL) |
| 466 | return; |
| 467 | |
| 468 | while (fgets(buf, sizeof(buf), f)) { |
| 469 | if (total == 0 && sscanf(buf, "MemTotal: %u", &total) == 1) |
| 470 | continue; |
| 471 | if (free == 0 && sscanf(buf, "MemFree: %u", &free) == 1) |
| 472 | continue; |
| 473 | if (buffers == 0 && sscanf(buf, "Buffers: %u", &buffers) == 1) |
| 474 | continue; |
| 475 | if (cached == 0 && sscanf(buf, "Cached: %u", &cached) == 1) |
| 476 | continue; |
| 477 | if (free_swap == 0 && sscanf(buf, "SwapFree: %u", &free_swap) == 1) |
| 478 | continue; |
| 479 | if (anonhuge == 0 && sscanf(buf, "AnonHugePages: %u", &anonhuge) == 1) |
| 480 | continue; |
| 481 | if (hugetot == 0 && sscanf(buf, "HugePages_Total: %u", &hugetot) == 1) |
| 482 | continue; |
| 483 | if (hugefree == 0 && sscanf(buf, "HugePages_Free: %u", &hugefree) == 1) |
| 484 | continue; |
| 485 | if (hugepgsz == 0 && sscanf(buf, "Hugepagesize: %u", &hugepgsz) == 1) |
| 486 | continue; |
| 487 | } |
| 488 | |
| 489 | fclose(f); |
| 490 | |
| 491 | hugetot = (hugetot - hugefree) * hugepgsz; |
| 492 | free += buffers + cached; |
| 493 | stats.mem_free = free >> 10; |
| 494 | stats.mem_huge = hugetot >> 10; |
| 495 | stats.mem_free_swap = free_swap >> 10; |
| 496 | } |
| 497 | |
| 498 | struct io_stat { |
| 499 | unsigned long sec_r; |
| 500 | unsigned long sec_w; |
| 501 | }; |
| 502 | |
| 503 | static struct { |
| 504 | struct io_stat last_st; |
| 505 | int read; // kB/s |
| 506 | int write; |
| 507 | } io_stats; |
| 508 | |
| 509 | static void collect_io_stat(void) |
| 510 | { |
| 511 | unsigned long sec_r, sec_w; |
| 512 | struct io_stat st = { 0, }; |
| 513 | char buf[128]; |
| 514 | FILE *f; |
| 515 | int i; |
| 516 | |
| 517 | for (i = 0; i < 2; i++) { |
| 518 | snprintf(buf, sizeof(buf), "/sys/block/mmcblk%d/stat", i); |
| 519 | f = fopen(buf, "r"); |
| 520 | if (f == NULL) |
| 521 | continue; |
| 522 | |
| 523 | if (fscanf(f, "%*s %*s %lu %*s %*s %*s %lu", |
| 524 | &sec_r, &sec_w) == 2) |
| 525 | { |
| 526 | st.sec_r += sec_r; |
| 527 | st.sec_w += sec_w; |
| 528 | } |
| 529 | fclose(f); |
| 530 | } |
| 531 | |
| 532 | io_stats.read = st.sec_r - io_stats.last_st.sec_r; |
| 533 | io_stats.write = st.sec_w - io_stats.last_st.sec_w; |
| 534 | // assuming 512 byte sectors.. |
| 535 | io_stats.read >>= 1; |
| 536 | io_stats.write >>= 1; |
| 537 | |
| 538 | io_stats.last_st = st; |
| 539 | } |
| 540 | |
| 541 | struct net_stat { |
| 542 | unsigned long rx; |
| 543 | unsigned long tx; |
| 544 | }; |
| 545 | |
| 546 | static struct { |
| 547 | struct net_stat last_st; |
| 548 | int down; // kB/s |
| 549 | int up; |
| 550 | int have_wlan; |
| 551 | int link; |
| 552 | int level; |
| 553 | } net_stats; |
| 554 | |
| 555 | static void collect_net_stat(void) |
| 556 | { |
| 557 | struct net_stat st = { 0, }; |
| 558 | unsigned long rx, tx; |
| 559 | int found = 0; |
| 560 | char buf[256]; |
| 561 | FILE *f; |
| 562 | |
| 563 | net_stats.down = net_stats.up = |
| 564 | net_stats.have_wlan = net_stats.link = net_stats.level = 0; |
| 565 | |
| 566 | f = fopen("/proc/net/dev", "r"); |
| 567 | if (f == NULL) |
| 568 | return; |
| 569 | |
| 570 | while (!feof(f)) { |
| 571 | static const char fmt[] = |
| 572 | "%255s %lu %*s %*s %*s %*s %*s %*s %lu"; |
| 573 | if (fscanf(f, fmt, buf, &rx, &tx) != 3) |
| 574 | continue; |
| 575 | if (IS_START(buf, "lo")) |
| 576 | continue; |
| 577 | st.rx += rx; |
| 578 | st.tx += tx; |
| 579 | found = 1; |
| 580 | } |
| 581 | fclose(f); |
| 582 | |
| 583 | if (found) { |
| 584 | net_stats.down = st.rx - net_stats.last_st.rx; |
| 585 | net_stats.up = st.tx - net_stats.last_st.tx; |
| 586 | } |
| 587 | net_stats.last_st = st; |
| 588 | |
| 589 | f = fopen("/proc/net/wireless", "r"); |
| 590 | if (f == NULL) |
| 591 | return; |
| 592 | |
| 593 | while (!feof(f)) { |
| 594 | int lnk, lvl; |
| 595 | if (fscanf(f, "%255s %*x %d. %d.", buf, &lnk, &lvl) != 3) |
| 596 | continue; |
| 597 | if (IS_START(buf, "lo")) |
| 598 | continue; |
| 599 | // first one should be enough |
| 600 | net_stats.have_wlan = 1; |
| 601 | net_stats.link = lnk; |
| 602 | net_stats.level = lvl; |
| 603 | break; |
| 604 | } |
| 605 | fclose(f); |
| 606 | } |
| 607 | |
| 608 | static void collect_stats(void) |
| 609 | { |
| 610 | collect_proc_stat(); |
| 611 | collect_mem_stat(); |
| 612 | collect_io_stat(); |
| 613 | collect_net_stat(); |
| 614 | } |
| 615 | |
| 616 | static char cpu_reg_path[64]; |
| 617 | |
| 618 | static void init_stats(void) |
| 619 | { |
| 620 | char buf[64]; |
| 621 | int found; |
| 622 | FILE *f; |
| 623 | int i; |
| 624 | |
| 625 | // find the CPU regulator |
| 626 | for (i = found = 0; ; i++) { |
| 627 | snprintf(buf, sizeof(buf), |
| 628 | "/sys/class/regulator/regulator.%d/name", i); |
| 629 | f = fopen(buf, "r"); |
| 630 | if (f == NULL) |
| 631 | break; |
| 632 | fgets(buf, sizeof(buf), f); |
| 633 | fclose(f); |
| 634 | if (IS_START(buf, "vdd_mpu")) { |
| 635 | found = 1; |
| 636 | break; |
| 637 | } |
| 638 | } |
| 639 | |
| 640 | if (found) |
| 641 | snprintf(cpu_reg_path, sizeof(cpu_reg_path), |
| 642 | "/sys/class/regulator/regulator.%d/microvolts", i); |
| 643 | |
| 644 | // do collect so differential stats get sane values |
| 645 | collect_stats(); |
| 646 | } |
| 647 | |
| 648 | static void get_time(int x, int y) |
| 649 | { |
| 650 | struct timeval tv; |
| 651 | struct tm *t; |
| 652 | char buf[16]; |
| 653 | |
| 654 | gettimeofday(&tv, NULL); |
| 655 | t = localtime(&tv.tv_sec); |
| 656 | strftime(buf, sizeof(buf), "%T", t); |
| 657 | s_printf(x, y, " %s", buf); |
| 658 | } |
| 659 | |
| 660 | static void get_cpu(int x, int y) |
| 661 | { |
| 662 | s_printf(x, y, "CPU:%5d%%", stats.cpu_usage); |
| 663 | } |
| 664 | |
| 665 | static void get_sys(int x, int y) |
| 666 | { |
| 667 | s_printf(x, y, "SYS:%5d%%", stats.cpu_sys); |
| 668 | } |
| 669 | |
| 670 | static void get_irq(int x, int y) |
| 671 | { |
| 672 | s_printf(x, y, "IRQ:%5u", stats.irqs); |
| 673 | } |
| 674 | |
| 675 | static void get_cs(int x, int y) |
| 676 | { |
| 677 | s_printf(x, y, "CS:%6u", stats.ctxt); |
| 678 | } |
| 679 | |
| 680 | static void get_cpuf(int x, int y) |
| 681 | { |
| 682 | static const char fn[] = |
| 683 | "/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq"; |
| 684 | int f; |
| 685 | |
| 686 | if (read_int_file(fn, &f)) |
| 687 | return; |
| 688 | s_printf(x, y, "f:%7dM", f / 1000); |
| 689 | } |
| 690 | |
| 691 | static void get_cpuv(int x, int y) |
| 692 | { |
| 693 | int v = 0; |
| 694 | |
| 695 | if (!cpu_reg_path[0] || read_int_file(cpu_reg_path, &v)) |
| 696 | return; |
| 697 | s_printf(x, y, "V:%7.3fV", (float)v / 1000000.0f); |
| 698 | } |
| 699 | |
| 700 | static void get_memfree(int x, int y) |
| 701 | { |
| 702 | s_printf(x, y, "M:%7dM", stats.mem_free); |
| 703 | } |
| 704 | |
| 705 | static void get_memhuge(int x, int y) |
| 706 | { |
| 707 | s_printf(x, y, "H:%7dM", stats.mem_huge); |
| 708 | } |
| 709 | |
| 710 | static void get_memswap(int x, int y) |
| 711 | { |
| 712 | s_printf(x, y, "S:%7dM", stats.mem_free_swap); |
| 713 | } |
| 714 | |
| 715 | #define PS_BASE "/sys/class/power_supply/bq27500-0/" |
| 716 | |
| 717 | static void get_bcap(int x, int y) |
| 718 | { |
| 719 | static const char fnc[] = PS_BASE "capacity"; |
| 720 | int c; |
| 721 | |
| 722 | if (read_int_file(fnc, &c)) |
| 723 | return; |
| 724 | s_printf(x, y, "C:%7d%%", c); |
| 725 | } |
| 726 | |
| 727 | static void get_btime(int x, int y) |
| 728 | { |
| 729 | static const char fne[] = PS_BASE "time_to_empty_now"; |
| 730 | static const char fnf[] = PS_BASE "time_to_full_now"; |
| 731 | int t = 0; |
| 732 | |
| 733 | if (read_int_file(fne, &t) || t == 0) { |
| 734 | if (read_int_file(fnf, &t)) |
| 735 | return; |
| 736 | } |
| 737 | s_printf(x, y, "t:%4d:%02d", t / 3600, t / 60 % 60); |
| 738 | } |
| 739 | |
| 740 | static void get_bvolts(int x, int y) |
| 741 | { |
| 742 | static const char fnv[] = PS_BASE "voltage_now"; |
| 743 | int volt = 0; |
| 744 | |
| 745 | if (read_int_file(fnv, &volt)) |
| 746 | return; |
| 747 | |
| 748 | s_printf(x, y, "V:%7.3fV", (float)volt / 1000000.0f); |
| 749 | } |
| 750 | |
| 751 | static void get_bwatts(int x, int y) |
| 752 | { |
| 753 | static const char fnc[] = PS_BASE "current_now"; |
| 754 | static const char fnv[] = PS_BASE "voltage_now"; |
| 755 | int w, cur = 0, volt = 0; |
| 756 | |
| 757 | if (read_int_file(fnc, &cur)) |
| 758 | return; |
| 759 | if (read_int_file(fnv, &volt)) |
| 760 | return; |
| 761 | |
| 762 | w = (cur / 1000) * (volt / 1000); |
| 763 | s_printf(x, y, "P:%7.3fW", (float)w / 1000000.0f); |
| 764 | } |
| 765 | |
| 766 | static void get_btemp(int x, int y) |
| 767 | { |
| 768 | static const char fnt[] = PS_BASE "temp"; |
| 769 | int t; |
| 770 | |
| 771 | if (read_int_file(fnt, &t)) |
| 772 | return; |
| 773 | s_printf(x, y, "T:%7.1fC", (float)t / 10.0f); |
| 774 | } |
| 775 | |
| 776 | static void get_ioread(int x, int y) |
| 777 | { |
| 778 | s_printf(x, y, "R:%5.1fM/s", (float)io_stats.read / 1000.0f); |
| 779 | } |
| 780 | |
| 781 | static void get_iowrite(int x, int y) |
| 782 | { |
| 783 | s_printf(x, y, "W:%5.1fM/s", (float)io_stats.write / 1000.0f); |
| 784 | } |
| 785 | |
| 786 | static void get_netdown(int x, int y) |
| 787 | { |
| 788 | s_printf(x, y, "D:%5uK/s", net_stats.down / 1000); |
| 789 | } |
| 790 | |
| 791 | static void get_netup(int x, int y) |
| 792 | { |
| 793 | s_printf(x, y, "U:%5uK/s", net_stats.up / 1000); |
| 794 | } |
| 795 | |
| 796 | static void get_netsgnl(int x, int y) |
| 797 | { |
| 798 | s_printf(x, y, "S:%5ddBm", net_stats.level); |
| 799 | } |
| 800 | |
| 801 | int main(int argc, char *argv[]) |
| 802 | { |
| 803 | static const char socket_name[] = "\0liveinfo"; |
| 804 | static const char fbname[] = "/dev/fb2"; |
| 805 | pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER; |
| 806 | pthread_condattr_t condattr; |
| 807 | struct sockaddr_un sun; |
| 808 | struct timespec ts; |
| 809 | struct pollfd pfd; |
| 810 | const char *p; |
| 811 | int is_hidden = 0; |
| 812 | int y = 0, y_max = 0; |
| 813 | int fd = -1; |
| 814 | int sock; |
| 815 | int i, ret; |
| 816 | |
| 817 | // look for other instance |
| 818 | sock = socket(PF_UNIX, SOCK_DGRAM, 0); |
| 819 | if (sock == -1) { |
| 820 | perror("socket PF_UNIX"); |
| 821 | return 1; |
| 822 | } |
| 823 | |
| 824 | memset(&sun, 0, sizeof(sun)); |
| 825 | sun.sun_family = AF_UNIX; |
| 826 | memcpy(sun.sun_path, socket_name, sizeof(socket_name)); |
| 827 | |
| 828 | ret = connect(sock, (struct sockaddr *)&sun, sizeof(sun)); |
| 829 | if (ret == 0) { |
| 830 | printf("other instance detected, sending poke command\n"); |
| 831 | ret = send(sock, "poke", 4, 0); |
| 832 | if (ret != 4) |
| 833 | perror("send"); |
| 834 | close(sock); |
| 835 | return ret == 4 ? 0 : 1; |
| 836 | } |
| 837 | |
| 838 | // load the config |
| 839 | handle_config(); |
| 840 | |
| 841 | fd = open(fbname, O_RDWR); |
| 842 | if (fd == -1) { |
| 843 | fprintf(stderr, "open %s: ", fbname); |
| 844 | perror(NULL); |
| 845 | return 1; |
| 846 | } |
| 847 | |
| 848 | nice(-1); |
| 849 | |
| 850 | // no need for privileges any more |
| 851 | p = getenv("SUDO_UID"); |
| 852 | if (p != NULL) { |
| 853 | ret = atoi(p); |
| 854 | if (ret != 0) { |
| 855 | ret = setuid(ret); |
| 856 | if (ret) |
| 857 | perror("setuid"); |
| 858 | } |
| 859 | } |
| 860 | |
| 861 | // bind/listen for commands |
| 862 | ret = bind(sock, (struct sockaddr *)&sun, sizeof(sun)); |
| 863 | if (ret != 0) { |
| 864 | perror("bind"); |
| 865 | close(sock); |
| 866 | return 1; |
| 867 | } |
| 868 | |
| 869 | #if 0 |
| 870 | ret = listen(sock, 1); |
| 871 | if (ret != 0) { |
| 872 | perror("listen"); |
| 873 | close(sock); |
| 874 | return 1; |
| 875 | } |
| 876 | #endif |
| 877 | |
| 878 | pfd.fd = sock; |
| 879 | pfd.events = POLLIN | POLLPRI; |
| 880 | pfd.revents = 0; |
| 881 | |
| 882 | ret = pthread_condattr_init(&condattr); |
| 883 | ret |= pthread_condattr_setclock(&condattr, CLOCK_MONOTONIC); |
| 884 | ret |= pthread_cond_init(&g_cond, &condattr); |
| 885 | pthread_condattr_destroy(&condattr); |
| 886 | if (ret != 0) { |
| 887 | fprintf(stderr, "cond init failed\n"); |
| 888 | return 1; |
| 889 | } |
| 890 | |
| 891 | ret = setup_layer(fd); |
| 892 | if (ret) |
| 893 | return ret; |
| 894 | |
| 895 | // clean up on kill too |
| 896 | signal(SIGTERM, handle_term); |
| 897 | signal(SIGUSR1, handle_usr1); |
| 898 | |
| 899 | pthread_mutex_lock(&mutex); |
| 900 | ret = clock_gettime(CLOCK_MONOTONIC, &ts); |
| 901 | if (ret != 0) { |
| 902 | perror("clock_gettime CLOCK_MONOTONIC"); |
| 903 | return 1; |
| 904 | } |
| 905 | |
| 906 | init_stats(); |
| 907 | |
| 908 | while (!g_exit) |
| 909 | { |
| 910 | // anything on unix socket? |
| 911 | ret = poll(&pfd, 1, 0); |
| 912 | if (ret < 0) { |
| 913 | perror("poll"); |
| 914 | break; |
| 915 | } |
| 916 | if (ret > 0) { |
| 917 | ret = handle_socket(sock); |
| 918 | if (ret < 0) |
| 919 | break; |
| 920 | continue; |
| 921 | } |
| 922 | |
| 923 | // handle hiding |
| 924 | if (g_hide) { |
| 925 | if (!is_hidden) { |
| 926 | remove_layer(fd); |
| 927 | is_hidden = 1; |
| 928 | } |
| 929 | goto do_sleep; |
| 930 | } |
| 931 | else if (is_hidden) { |
| 932 | ret = setup_layer(fd); |
| 933 | if (ret) |
| 934 | break; |
| 935 | is_hidden = 0; |
| 936 | } |
| 937 | |
| 938 | if (check_layer(fd) != 0) |
| 939 | break; |
| 940 | |
| 941 | collect_stats(); |
| 942 | |
| 943 | y += Y_STEP; |
| 944 | if (y > y_max) |
| 945 | y_max = y; |
| 946 | clear(y_max); |
| 947 | |
| 948 | y = 0; |
| 949 | get_time (0, y += Y_STEP); |
| 950 | y += Y_STEP / 2; |
| 951 | get_cpu (0, y += Y_STEP); |
| 952 | get_sys (0, y += Y_STEP); |
| 953 | get_irq (0, y += Y_STEP); |
| 954 | get_cs (0, y += Y_STEP); |
| 955 | get_cpuf (0, y += Y_STEP); |
| 956 | get_cpuv (0, y += Y_STEP); |
| 957 | y += Y_STEP / 2; |
| 958 | s_printf(0, y += Y_STEP, "mem"); |
| 959 | get_memfree(0, y += Y_STEP); |
| 960 | get_memswap(0, y += Y_STEP); |
| 961 | if (stats.mem_huge) |
| 962 | get_memhuge(0, y += Y_STEP); |
| 963 | y += Y_STEP / 2; |
| 964 | s_printf(0, y += Y_STEP, "i/o"); |
| 965 | get_ioread (0, y += Y_STEP); |
| 966 | get_iowrite(0, y += Y_STEP); |
| 967 | y += Y_STEP / 2; |
| 968 | s_printf(0, y += Y_STEP, "net"); |
| 969 | get_netdown(0, y += Y_STEP); |
| 970 | get_netup (0, y += Y_STEP); |
| 971 | if (net_stats.have_wlan) |
| 972 | get_netsgnl(0, y += Y_STEP); |
| 973 | y += Y_STEP / 2; |
| 974 | s_printf(0, y += Y_STEP, "batt"); |
| 975 | get_bcap (0, y += Y_STEP); |
| 976 | get_btime (0, y += Y_STEP); |
| 977 | get_bvolts (0, y += Y_STEP); |
| 978 | get_bwatts (0, y += Y_STEP); |
| 979 | get_btemp (0, y += Y_STEP); |
| 980 | |
| 981 | // print user messages |
| 982 | y += Y_STEP; |
| 983 | for (i = 0; i < ARRAY_SIZE(user_msgs); i++) { |
| 984 | if (user_msgs[i].text[0] == 0) |
| 985 | break; |
| 986 | user_msgs[i].idle++; |
| 987 | if (user_msgs[i].idle > 6) { |
| 988 | // drop old entry, shift others up |
| 989 | memmove(&user_msgs[i], &user_msgs[i + 1], |
| 990 | (ARRAY_SIZE(user_msgs) - i - 1) * sizeof(user_msgs[0])); |
| 991 | user_msgs[ARRAY_SIZE(user_msgs) - 1].text[0] = 0; |
| 992 | // reprocess |
| 993 | i--; |
| 994 | continue; |
| 995 | } |
| 996 | |
| 997 | s_printf(0, y += Y_STEP, user_msgs[i].text); |
| 998 | } |
| 999 | |
| 1000 | flip_fb(fd); |
| 1001 | |
| 1002 | do_sleep: |
| 1003 | ts.tv_sec++; |
| 1004 | pthread_cond_timedwait(&g_cond, &mutex, &ts); |
| 1005 | } |
| 1006 | |
| 1007 | remove_layer(fd); |
| 1008 | close(fd); |
| 1009 | close(sock); |
| 1010 | |
| 1011 | return 0; |
| 1012 | } |
| 1013 | |
| 1014 | // vim:expandtab:sw=2:ts=2 |