1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * tui.c ncurses text user interface for TMON program
4 *
5 * Copyright (C) 2013 Intel Corporation. All rights reserved.
6 *
7 * Author: Jacob Pan <jacob.jun.pan@linux.intel.com>
8 */
9
10 #include <unistd.h>
11 #include <stdio.h>
12 #include <stdlib.h>
13 #include <string.h>
14 #include <stdint.h>
15 #include <ncurses.h>
16 #include <time.h>
17 #include <syslog.h>
18 #include <panel.h>
19 #include <pthread.h>
20 #include <signal.h>
21
22 #include "tmon.h"
23
24 #define min(x, y) ({ \
25 typeof(x) _min1 = (x); \
26 typeof(y) _min2 = (y); \
27 (void) (&_min1 == &_min2); \
28 _min1 < _min2 ? _min1 : _min2; })
29
30 #define max(x, y) ({ \
31 typeof(x) _max1 = (x); \
32 typeof(y) _max2 = (y); \
33 (void) (&_max1 == &_max2); \
34 _max1 > _max2 ? _max1 : _max2; })
35
36 static PANEL *data_panel;
37 static PANEL *dialogue_panel;
38 static PANEL *top;
39
40 static WINDOW *title_bar_window;
41 static WINDOW *tz_sensor_window;
42 static WINDOW *cooling_device_window;
43 static WINDOW *control_window;
44 static WINDOW *status_bar_window;
45 static WINDOW *thermal_data_window;
46 static WINDOW *dialogue_window;
47
48 char status_bar_slots[10][40];
49 static void draw_hbar(WINDOW *win, int y, int start, int len,
50 unsigned long pattern, bool end);
51
52 static int maxx, maxy;
53 static int maxwidth = 200;
54
55 #define TITLE_BAR_HIGHT 1
56 #define SENSOR_WIN_HIGHT 4 /* one row for tz name, one for trip points */
57
58
59 /* daemon mode flag (set by startup parameter -d) */
60 static int tui_disabled;
61
close_panel(PANEL * p)62 static void close_panel(PANEL *p)
63 {
64 if (p) {
65 del_panel(p);
66 p = NULL;
67 }
68 }
69
close_window(WINDOW * win)70 static void close_window(WINDOW *win)
71 {
72 if (win) {
73 delwin(win);
74 win = NULL;
75 }
76 }
77
close_windows(void)78 void close_windows(void)
79 {
80 if (tui_disabled)
81 return;
82 /* must delete panels before their attached windows */
83 if (dialogue_window)
84 close_panel(dialogue_panel);
85 if (cooling_device_window)
86 close_panel(data_panel);
87
88 close_window(title_bar_window);
89 close_window(tz_sensor_window);
90 close_window(status_bar_window);
91 close_window(cooling_device_window);
92 close_window(control_window);
93 close_window(thermal_data_window);
94 close_window(dialogue_window);
95
96 }
97
write_status_bar(int x,char * line)98 void write_status_bar(int x, char *line)
99 {
100 mvwprintw(status_bar_window, 0, x, "%s", line);
101 wrefresh(status_bar_window);
102 }
103
104 /* wrap at 5 */
105 #define DIAG_DEV_ROWS 5
106 /*
107 * list cooling devices + "set temp" entry; wraps after 5 rows, if they fit
108 */
diag_dev_rows(void)109 static int diag_dev_rows(void)
110 {
111 int entries = ptdata.nr_cooling_dev + 1;
112 int rows = max(DIAG_DEV_ROWS, (entries + 1) / 2);
113 return min(rows, entries);
114 }
115
setup_windows(void)116 void setup_windows(void)
117 {
118 int y_begin = 1;
119
120 if (tui_disabled)
121 return;
122
123 getmaxyx(stdscr, maxy, maxx);
124 resizeterm(maxy, maxx);
125
126 title_bar_window = subwin(stdscr, TITLE_BAR_HIGHT, maxx, 0, 0);
127 y_begin += TITLE_BAR_HIGHT;
128
129 tz_sensor_window = subwin(stdscr, SENSOR_WIN_HIGHT, maxx, y_begin, 0);
130 y_begin += SENSOR_WIN_HIGHT;
131
132 cooling_device_window = subwin(stdscr, ptdata.nr_cooling_dev + 3, maxx,
133 y_begin, 0);
134 y_begin += ptdata.nr_cooling_dev + 3; /* 2 lines for border */
135 /* two lines to show borders, one line per tz show trip point position
136 * and value.
137 * dialogue window is a pop-up, when needed it lays on top of cdev win
138 */
139
140 dialogue_window = subwin(stdscr, diag_dev_rows() + 5, maxx-50,
141 DIAG_Y, DIAG_X);
142
143 thermal_data_window = subwin(stdscr, ptdata.nr_tz_sensor *
144 NR_LINES_TZDATA + 3, maxx, y_begin, 0);
145 y_begin += ptdata.nr_tz_sensor * NR_LINES_TZDATA + 3;
146 control_window = subwin(stdscr, 4, maxx, y_begin, 0);
147
148 scrollok(cooling_device_window, TRUE);
149 maxwidth = maxx - 18;
150 status_bar_window = subwin(stdscr, 1, maxx, maxy-1, 0);
151
152 strcpy(status_bar_slots[0], " Ctrl-c - Quit ");
153 strcpy(status_bar_slots[1], " TAB - Tuning ");
154 wmove(status_bar_window, 1, 30);
155
156 /* prepare panels for dialogue, if panel already created then we must
157 * be doing resizing, so just replace windows with new ones, old ones
158 * should have been deleted by close_window
159 */
160 data_panel = new_panel(cooling_device_window);
161 if (!data_panel)
162 syslog(LOG_DEBUG, "No data panel\n");
163 else {
164 if (dialogue_window) {
165 dialogue_panel = new_panel(dialogue_window);
166 if (!dialogue_panel)
167 syslog(LOG_DEBUG, "No dialogue panel\n");
168 else {
169 /* Set up the user pointer to the next panel*/
170 set_panel_userptr(data_panel, dialogue_panel);
171 set_panel_userptr(dialogue_panel, data_panel);
172 top = data_panel;
173 }
174 } else
175 syslog(LOG_INFO, "no dialogue win, term too small\n");
176 }
177 doupdate();
178 werase(stdscr);
179 refresh();
180 }
181
resize_handler(int sig)182 void resize_handler(int sig)
183 {
184 /* start over when term gets resized, but first we clean up */
185 close_windows();
186 endwin();
187 refresh();
188 clear();
189 getmaxyx(stdscr, maxy, maxx); /* get the new screen size */
190 setup_windows();
191 /* rate limit */
192 sleep(1);
193 syslog(LOG_DEBUG, "SIG %d, term resized to %d x %d\n",
194 sig, maxy, maxx);
195 signal(SIGWINCH, resize_handler);
196 }
197
198 const char cdev_title[] = " COOLING DEVICES ";
show_cooling_device(void)199 void show_cooling_device(void)
200 {
201 int i, j, x, y = 0;
202
203 if (tui_disabled || !cooling_device_window)
204 return;
205
206 werase(cooling_device_window);
207 wattron(cooling_device_window, A_BOLD);
208 mvwprintw(cooling_device_window, 1, 1,
209 "ID Cooling Dev Cur Max Thermal Zone Binding");
210 wattroff(cooling_device_window, A_BOLD);
211 for (j = 0; j < ptdata.nr_cooling_dev; j++) {
212 /* draw cooling device list on the left in the order of
213 * cooling device instances. skip unused idr.
214 */
215 mvwprintw(cooling_device_window, j + 2, 1,
216 "%02d %12.12s%6lu %6lu",
217 ptdata.cdi[j].instance,
218 ptdata.cdi[j].type,
219 ptdata.cdi[j].cur_state,
220 ptdata.cdi[j].max_state);
221 }
222
223 /* show cdev binding, y is the global cooling device instance */
224 for (i = 0; i < ptdata.nr_tz_sensor; i++) {
225 int tz_inst = ptdata.tzi[i].instance;
226 for (j = 0; j < ptdata.nr_cooling_dev; j++) {
227 int cdev_inst;
228 y = j;
229 x = tz_inst * TZONE_RECORD_SIZE + TZ_LEFT_ALIGN;
230
231 draw_hbar(cooling_device_window, y+2, x,
232 TZONE_RECORD_SIZE-1, ACS_VLINE, false);
233
234 /* draw a column of spaces to separate thermal zones */
235 mvwprintw(cooling_device_window, y+2, x-1, " ");
236 if (ptdata.tzi[i].cdev_binding) {
237 cdev_inst = ptdata.cdi[j].instance;
238 unsigned long trip_binding =
239 ptdata.tzi[i].trip_binding[cdev_inst];
240 int k = 0; /* per zone trip point id that
241 * binded to this cdev, one to
242 * many possible based on the
243 * binding bitmask.
244 */
245 syslog(LOG_DEBUG,
246 "bind tz%d cdev%d tp%lx %d cdev%lx\n",
247 i, j, trip_binding, y,
248 ptdata.tzi[i].cdev_binding);
249 /* draw each trip binding for the cdev */
250 while (trip_binding >>= 1) {
251 k++;
252 if (!(trip_binding & 1))
253 continue;
254 /* draw '*' to show binding */
255 mvwprintw(cooling_device_window,
256 y + 2,
257 x + ptdata.tzi[i].nr_trip_pts -
258 k - 1, "*");
259 }
260 }
261 }
262 }
263 /* draw border after data so that border will not be messed up
264 * even there is not enough space for all the data to be shown
265 */
266 wborder(cooling_device_window, 0, 0, 0, 0, 0, 0, 0, 0);
267 wattron(cooling_device_window, A_BOLD);
268 mvwprintw(cooling_device_window, 0, maxx/2 - sizeof(cdev_title),
269 cdev_title);
270 wattroff(cooling_device_window, A_BOLD);
271
272 wrefresh(cooling_device_window);
273 }
274
275 const char DIAG_TITLE[] = "[ TUNABLES ]";
show_dialogue(void)276 void show_dialogue(void)
277 {
278 int j, x = 0, y = 0;
279 int rows, cols;
280 WINDOW *w = dialogue_window;
281
282 if (tui_disabled || !w)
283 return;
284
285 getmaxyx(w, rows, cols);
286
287 /* Silence compiler 'unused' warnings */
288 (void)cols;
289
290 werase(w);
291 box(w, 0, 0);
292 mvwprintw(w, 0, maxx/4, DIAG_TITLE);
293 /* list all the available tunables */
294 for (j = 0; j <= ptdata.nr_cooling_dev; j++) {
295 y = j % diag_dev_rows();
296 if (y == 0 && j != 0)
297 x += 20;
298 if (j == ptdata.nr_cooling_dev)
299 /* save last choice for target temp */
300 mvwprintw(w, y+1, x+1, "%C-%.12s", 'A'+j, "Set Temp");
301 else
302 mvwprintw(w, y+1, x+1, "%C-%.10s-%2d", 'A'+j,
303 ptdata.cdi[j].type, ptdata.cdi[j].instance);
304 }
305 wattron(w, A_BOLD);
306 mvwprintw(w, diag_dev_rows()+1, 1, "Enter Choice [A-Z]?");
307 wattroff(w, A_BOLD);
308 /* print legend at the bottom line */
309 mvwprintw(w, rows - 2, 1,
310 "Legend: A=Active, P=Passive, C=Critical");
311
312 wrefresh(dialogue_window);
313 }
314
write_dialogue_win(char * buf,int y,int x)315 void write_dialogue_win(char *buf, int y, int x)
316 {
317 WINDOW *w = dialogue_window;
318
319 mvwprintw(w, y, x, "%s", buf);
320 }
321
322 const char control_title[] = " CONTROLS ";
show_control_w(void)323 void show_control_w(void)
324 {
325 unsigned long state;
326
327 get_ctrl_state(&state);
328
329 if (tui_disabled || !control_window)
330 return;
331
332 werase(control_window);
333 mvwprintw(control_window, 1, 1,
334 "PID gain: kp=%2.2f ki=%2.2f kd=%2.2f Output %2.2f",
335 p_param.kp, p_param.ki, p_param.kd, p_param.y_k);
336
337 mvwprintw(control_window, 2, 1,
338 "Target Temp: %2.1fC, Zone: %d, Control Device: %.12s",
339 p_param.t_target, target_thermal_zone, ctrl_cdev);
340
341 /* draw border last such that everything is within boundary */
342 wborder(control_window, 0, 0, 0, 0, 0, 0, 0, 0);
343 wattron(control_window, A_BOLD);
344 mvwprintw(control_window, 0, maxx/2 - sizeof(control_title),
345 control_title);
346 wattroff(control_window, A_BOLD);
347
348 wrefresh(control_window);
349 }
350
initialize_curses(void)351 void initialize_curses(void)
352 {
353 if (tui_disabled)
354 return;
355
356 initscr();
357 start_color();
358 keypad(stdscr, TRUE); /* enable keyboard mapping */
359 nonl(); /* tell curses not to do NL->CR/NL on output */
360 cbreak(); /* take input chars one at a time */
361 noecho(); /* dont echo input */
362 curs_set(0); /* turn off cursor */
363 use_default_colors();
364
365 init_pair(PT_COLOR_DEFAULT, COLOR_WHITE, COLOR_BLACK);
366 init_pair(PT_COLOR_HEADER_BAR, COLOR_BLACK, COLOR_WHITE);
367 init_pair(PT_COLOR_ERROR, COLOR_BLACK, COLOR_RED);
368 init_pair(PT_COLOR_RED, COLOR_WHITE, COLOR_RED);
369 init_pair(PT_COLOR_YELLOW, COLOR_WHITE, COLOR_YELLOW);
370 init_pair(PT_COLOR_GREEN, COLOR_WHITE, COLOR_GREEN);
371 init_pair(PT_COLOR_BLUE, COLOR_WHITE, COLOR_BLUE);
372 init_pair(PT_COLOR_BRIGHT, COLOR_WHITE, COLOR_BLACK);
373
374 }
375
show_title_bar(void)376 void show_title_bar(void)
377 {
378 int i;
379 int x = 0;
380
381 if (tui_disabled || !title_bar_window)
382 return;
383
384 wattrset(title_bar_window, COLOR_PAIR(PT_COLOR_HEADER_BAR));
385 wbkgd(title_bar_window, COLOR_PAIR(PT_COLOR_HEADER_BAR));
386 werase(title_bar_window);
387
388 mvwprintw(title_bar_window, 0, 0,
389 " TMON v%s", VERSION);
390
391 wrefresh(title_bar_window);
392
393 werase(status_bar_window);
394
395 for (i = 0; i < 10; i++) {
396 if (strlen(status_bar_slots[i]) == 0)
397 continue;
398 wattron(status_bar_window, A_REVERSE);
399 mvwprintw(status_bar_window, 0, x, "%s", status_bar_slots[i]);
400 wattroff(status_bar_window, A_REVERSE);
401 x += strlen(status_bar_slots[i]) + 1;
402 }
403 wrefresh(status_bar_window);
404 }
405
handle_input_val(int ch)406 static void handle_input_val(int ch)
407 {
408 char buf[32];
409 int val;
410 char path[256];
411 WINDOW *w = dialogue_window;
412
413 echo();
414 keypad(w, TRUE);
415 wgetnstr(w, buf, 31);
416 val = atoi(buf);
417
418 if (ch == ptdata.nr_cooling_dev) {
419 snprintf(buf, 31, "Invalid Temp %d! %d-%d", val,
420 MIN_CTRL_TEMP, MAX_CTRL_TEMP);
421 if (val < MIN_CTRL_TEMP || val > MAX_CTRL_TEMP)
422 write_status_bar(40, buf);
423 else {
424 p_param.t_target = val;
425 snprintf(buf, 31, "Set New Target Temp %d", val);
426 write_status_bar(40, buf);
427 }
428 } else {
429 snprintf(path, 256, "%s/%s%d", THERMAL_SYSFS,
430 CDEV, ptdata.cdi[ch].instance);
431 sysfs_set_ulong(path, "cur_state", val);
432 }
433 noecho();
434 dialogue_on = 0;
435 show_data_w();
436 show_control_w();
437
438 top = (PANEL *)panel_userptr(top);
439 top_panel(top);
440 }
441
handle_input_choice(int ch)442 static void handle_input_choice(int ch)
443 {
444 char buf[48];
445 int base = 0;
446 int cdev_id = 0;
447
448 if ((ch >= 'A' && ch <= 'A' + ptdata.nr_cooling_dev) ||
449 (ch >= 'a' && ch <= 'a' + ptdata.nr_cooling_dev)) {
450 base = (ch < 'a') ? 'A' : 'a';
451 cdev_id = ch - base;
452 if (ptdata.nr_cooling_dev == cdev_id)
453 snprintf(buf, sizeof(buf), "New Target Temp:");
454 else
455 snprintf(buf, sizeof(buf), "New Value for %.10s-%2d: ",
456 ptdata.cdi[cdev_id].type,
457 ptdata.cdi[cdev_id].instance);
458 write_dialogue_win(buf, diag_dev_rows() + 2, 2);
459 handle_input_val(cdev_id);
460 } else {
461 snprintf(buf, sizeof(buf), "Invalid selection %d", ch);
462 write_dialogue_win(buf, 8, 2);
463 }
464 }
465
handle_tui_events(void * arg)466 void *handle_tui_events(void *arg)
467 {
468 int ch;
469
470 keypad(cooling_device_window, TRUE);
471 while ((ch = wgetch(cooling_device_window)) != EOF) {
472 if (tmon_exit)
473 break;
474 /* when term size is too small, no dialogue panels are set.
475 * we need to filter out such cases.
476 */
477 if (!data_panel || !dialogue_panel ||
478 !cooling_device_window ||
479 !dialogue_window) {
480
481 continue;
482 }
483 pthread_mutex_lock(&input_lock);
484 if (dialogue_on) {
485 handle_input_choice(ch);
486 /* top panel filter */
487 if (ch == 'q' || ch == 'Q')
488 ch = 0;
489 }
490 switch (ch) {
491 case KEY_LEFT:
492 box(cooling_device_window, 10, 0);
493 break;
494 case 9: /* TAB */
495 top = (PANEL *)panel_userptr(top);
496 top_panel(top);
497 if (top == dialogue_panel) {
498 dialogue_on = 1;
499 show_dialogue();
500 } else {
501 dialogue_on = 0;
502 /* force refresh */
503 show_data_w();
504 show_control_w();
505 }
506 break;
507 case 'q':
508 case 'Q':
509 tmon_exit = 1;
510 break;
511 }
512 update_panels();
513 doupdate();
514 pthread_mutex_unlock(&input_lock);
515 }
516
517 if (arg)
518 *(int *)arg = 0; /* make gcc happy */
519
520 return NULL;
521 }
522
523 /* draw a horizontal bar in given pattern */
draw_hbar(WINDOW * win,int y,int start,int len,unsigned long ptn,bool end)524 static void draw_hbar(WINDOW *win, int y, int start, int len, unsigned long ptn,
525 bool end)
526 {
527 mvwaddch(win, y, start, ptn);
528 whline(win, ptn, len);
529 if (end)
530 mvwaddch(win, y, MAX_DISP_TEMP+TDATA_LEFT, ']');
531 }
532
trip_type_to_char(int type)533 static char trip_type_to_char(int type)
534 {
535 switch (type) {
536 case THERMAL_TRIP_CRITICAL: return 'C';
537 case THERMAL_TRIP_HOT: return 'H';
538 case THERMAL_TRIP_PASSIVE: return 'P';
539 case THERMAL_TRIP_ACTIVE: return 'A';
540 default:
541 return '?';
542 }
543 }
544
545 /* fill a string with trip point type and value in one line
546 * e.g. P(56) C(106)
547 * maintain the distance one degree per char
548 */
draw_tp_line(int tz,int y)549 static void draw_tp_line(int tz, int y)
550 {
551 int j;
552 int x;
553
554 for (j = 0; j < ptdata.tzi[tz].nr_trip_pts; j++) {
555 x = ptdata.tzi[tz].tp[j].temp / 1000;
556 mvwprintw(thermal_data_window, y + 0, x + TDATA_LEFT,
557 "%c%d", trip_type_to_char(ptdata.tzi[tz].tp[j].type),
558 x);
559 syslog(LOG_INFO, "%s:tz %d tp %d temp = %lu\n", __func__,
560 tz, j, ptdata.tzi[tz].tp[j].temp);
561 }
562 }
563
564 const char data_win_title[] = " THERMAL DATA ";
show_data_w(void)565 void show_data_w(void)
566 {
567 int i;
568
569
570 if (tui_disabled || !thermal_data_window)
571 return;
572
573 werase(thermal_data_window);
574 wattron(thermal_data_window, A_BOLD);
575 mvwprintw(thermal_data_window, 0, maxx/2 - sizeof(data_win_title),
576 data_win_title);
577 wattroff(thermal_data_window, A_BOLD);
578 /* draw a line as ruler */
579 for (i = 10; i < MAX_DISP_TEMP; i += 10)
580 mvwprintw(thermal_data_window, 1, i+TDATA_LEFT, "%2d", i);
581
582 for (i = 0; i < ptdata.nr_tz_sensor; i++) {
583 int temp = trec[cur_thermal_record].temp[i] / 1000;
584 int y = 0;
585
586 y = i * NR_LINES_TZDATA + 2;
587 /* y at tz temp data line */
588 mvwprintw(thermal_data_window, y, 1, "%6.6s%2d:[%3d][",
589 ptdata.tzi[i].type,
590 ptdata.tzi[i].instance, temp);
591 draw_hbar(thermal_data_window, y, TDATA_LEFT, temp, ACS_RARROW,
592 true);
593 draw_tp_line(i, y);
594 }
595 wborder(thermal_data_window, 0, 0, 0, 0, 0, 0, 0, 0);
596 wrefresh(thermal_data_window);
597 }
598
599 const char tz_title[] = "THERMAL ZONES(SENSORS)";
600
show_sensors_w(void)601 void show_sensors_w(void)
602 {
603 int i, j;
604 char buffer[512];
605
606 if (tui_disabled || !tz_sensor_window)
607 return;
608
609 werase(tz_sensor_window);
610
611 memset(buffer, 0, sizeof(buffer));
612 wattron(tz_sensor_window, A_BOLD);
613 mvwprintw(tz_sensor_window, 1, 1, "Thermal Zones:");
614 wattroff(tz_sensor_window, A_BOLD);
615
616 mvwprintw(tz_sensor_window, 1, TZ_LEFT_ALIGN, "%s", buffer);
617 /* fill trip points for each tzone */
618 wattron(tz_sensor_window, A_BOLD);
619 mvwprintw(tz_sensor_window, 2, 1, "Trip Points:");
620 wattroff(tz_sensor_window, A_BOLD);
621
622 /* draw trip point from low to high for each tz */
623 for (i = 0; i < ptdata.nr_tz_sensor; i++) {
624 int inst = ptdata.tzi[i].instance;
625
626 mvwprintw(tz_sensor_window, 1,
627 TZ_LEFT_ALIGN+TZONE_RECORD_SIZE * inst, "%.9s%02d",
628 ptdata.tzi[i].type, ptdata.tzi[i].instance);
629 for (j = ptdata.tzi[i].nr_trip_pts - 1; j >= 0; j--) {
630 /* loop through all trip points */
631 char type;
632 int tp_pos;
633 /* reverse the order here since trips are sorted
634 * in ascending order in terms of temperature.
635 */
636 tp_pos = ptdata.tzi[i].nr_trip_pts - j - 1;
637
638 type = trip_type_to_char(ptdata.tzi[i].tp[j].type);
639 mvwaddch(tz_sensor_window, 2,
640 inst * TZONE_RECORD_SIZE + TZ_LEFT_ALIGN +
641 tp_pos, type);
642 syslog(LOG_DEBUG, "draw tz %d tp %d ch:%c\n",
643 inst, j, type);
644 }
645 }
646 wborder(tz_sensor_window, 0, 0, 0, 0, 0, 0, 0, 0);
647 wattron(tz_sensor_window, A_BOLD);
648 mvwprintw(tz_sensor_window, 0, maxx/2 - sizeof(tz_title), tz_title);
649 wattroff(tz_sensor_window, A_BOLD);
650 wrefresh(tz_sensor_window);
651 }
652
disable_tui(void)653 void disable_tui(void)
654 {
655 tui_disabled = 1;
656 }
657