111 lines
3.5 KiB
C
111 lines
3.5 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2016 Amaury Pouly
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "nwz_lib.h"
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int main(int argc, char **argv)
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{
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/* clear screen and display welcome message */
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nwz_lcdmsg(true, 0, 0, "test_bl");
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nwz_lcdmsg(false, 0, 2, "UP/DOWN: level");
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nwz_lcdmsg(false, 0, 3, "LEFT/RIGHT: step");
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nwz_lcdmsg(false, 0, 4, "VOL UP/DOWN: period");
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nwz_lcdmsg(false, 0, 5, "PWR OFF: quit");
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/* open input and framebuffer device */
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int input_fd = nwz_key_open();
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if(input_fd < 0)
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{
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nwz_lcdmsg(false, 3, 7, "Cannot open input device");
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sleep(2);
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return 1;
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}
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int fb_fd = nwz_fb_open(true);
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if(fb_fd < 0)
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{
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nwz_lcdmsg(false, 3, 7, "Cannot open framebuffer device");
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sleep(2);
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return 1;
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}
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/* display input state in a loop */
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while(1)
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{
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struct nwz_fb_brightness bl;
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if(nwz_fb_get_brightness(fb_fd, &bl) == 1)
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{
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nwz_lcdmsgf(false, 1, 7, "level: %d ", bl.level);
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nwz_lcdmsgf(false, 1, 8, "step: %d ", bl.step);
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nwz_lcdmsgf(false, 1, 9, "period: %d ", bl.period);
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}
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/* wait for event */
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int ret = nwz_key_wait_event(input_fd, -1);
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if(ret != 1)
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continue;
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struct input_event evt;
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if(nwz_key_read_event(input_fd, &evt) != 1)
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continue;
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int code = nwz_key_event_get_keycode(&evt);
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bool press = nwz_key_event_is_press(&evt);
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/* only act on release */
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if(press)
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continue;
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if(code == NWZ_KEY_OPTION)
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break; /* quit */
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bool change_bl = false;
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if(code == NWZ_KEY_UP && bl.level < NWZ_FB_BL_MAX_LEVEL)
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{
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change_bl = true;
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bl.level++;
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}
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else if(code == NWZ_KEY_DOWN && bl.level > NWZ_FB_BL_MIN_LEVEL)
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{
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change_bl = true;
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bl.level--;
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}
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else if(code == NWZ_KEY_RIGHT && bl.step < NWZ_FB_BL_MAX_STEP)
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{
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change_bl = true;
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bl.step++;
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}
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else if(code == NWZ_KEY_LEFT && bl.step > NWZ_FB_BL_MIN_STEP)
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{
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change_bl = true;
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bl.step--;
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}
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else if(code == NWZ_KEY_VOL_UP && bl.period < 100) /* artificial bound on period */
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{
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change_bl = true;
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bl.period++;
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}
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else if(code == NWZ_KEY_VOL_DOWN && bl.period > NWZ_FB_BL_MIN_PERIOD)
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{
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change_bl = true;
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bl.period--;
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}
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/* change bl */
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if(change_bl)
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nwz_fb_set_brightness(fb_fd, &bl);
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}
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/* close input device */
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close(input_fd);
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/* finish nicely */
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return 0;
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}
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