| /*************************************************************************** |
| * __________ __ ___. |
| * Open \______ \ ____ ____ | | _\_ |__ _______ ___ |
| * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / |
| * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < |
| * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ |
| * \/ \/ \/ \/ \/ |
| * $Id$ |
| * |
| * Copyright (C) 2016 Amaury Pouly |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; either version 2 |
| * of the License, or (at your option) any later version. |
| * |
| * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY |
| * KIND, either express or implied. |
| * |
| ****************************************************************************/ |
| #include "nwz_lib.h" |
| #include "nwz_plattools.h" |
| |
| int NWZ_TOOL_MAIN(test_adc)(int argc, char **argv) |
| { |
| /* clear screen and display welcome message */ |
| nwz_lcdmsg(true, 0, 0, "test_adc"); |
| nwz_lcdmsg(false, 0, 2, "BACK: quit"); |
| /* open input device */ |
| int input_fd = nwz_key_open(); |
| if(input_fd < 0) |
| { |
| nwz_lcdmsg(false, 3, 4, "Cannot open input device"); |
| sleep(2); |
| return 1; |
| } |
| /* open adc device */ |
| int adc_fd = nwz_adc_open(); |
| if(adc_fd < 0) |
| { |
| nwz_key_close(input_fd); |
| nwz_lcdmsg(false, 3, 4, "Cannot open adc device"); |
| sleep(2); |
| return 1; |
| } |
| /* display input state in a loop */ |
| while(1) |
| { |
| /* print channels */ |
| for(int i = NWZ_ADC_MIN_CHAN; i <= NWZ_ADC_MAX_CHAN; i++) |
| nwz_lcdmsgf(false, 1, 4 + i, "%s: %d ", nwz_adc_get_name(i), |
| nwz_adc_get_val(adc_fd, i)); |
| /* wait for event (10ms) */ |
| int ret = nwz_key_wait_event(input_fd, 10000); |
| if(ret != 1) |
| continue; |
| struct input_event evt; |
| if(nwz_key_read_event(input_fd, &evt) != 1) |
| continue; |
| if(nwz_key_event_get_keycode(&evt) == NWZ_KEY_BACK && !nwz_key_event_is_press(&evt)) |
| break; |
| } |
| /* finish nicely */ |
| nwz_key_close(input_fd); |
| nwz_adc_close(adc_fd); |
| return 0; |
| } |