diff options
Diffstat (limited to 'utils/nwztools/plattools/test_adc.c')
-rw-r--r-- | utils/nwztools/plattools/test_adc.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/utils/nwztools/plattools/test_adc.c b/utils/nwztools/plattools/test_adc.c new file mode 100644 index 0000000000..52eafd042d --- /dev/null +++ b/utils/nwztools/plattools/test_adc.c @@ -0,0 +1,64 @@ +/*************************************************************************** + * __________ __ ___. + * 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" + +int main(int argc, char **argv) +{ + /* clear screen and display welcome message */ + nwz_lcdmsg(true, 0, 0, "test_adc"); + nwz_lcdmsg(false, 0, 2, "PWR OFF: quit"); + /* open input device */ + int input_fd = nwz_key_open(); + if(input_fd < 0) + { + nwz_lcdmsg(false, 3, 7, "Cannot open input device"); + sleep(2); + return 1; + } + /* open adc device */ + int adc_fd = nwz_adc_open(); + if(adc_fd < 0) + { + 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_OPTION && !nwz_key_event_is_press(&evt)) + break; + } + /* finish nicely */ + return 0; +} + |