9ee7c284e6
Added GINPUT Dial support and a driver that uses GADC to read the dial. Added support for Dial inputs to the GWIN slider. Updated the slider demo for Dial Inputs. Simplified the assigning of inputs to GWIN "widgets" button and slider. Updated the demo's to match the new input to button assignment.
101 lines
2.8 KiB
C
101 lines
2.8 KiB
C
/*
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ChibiOS/GFX - Copyright (C) 2012, 2013
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Joel Bodenmann aka Tectu <joel@unormal.org>
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This file is part of ChibiOS/GFX.
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ChibiOS/GFX is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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ChibiOS/GFX is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @file drivers/ginput/dial/GADC/ginput_lld_dial.c
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* @brief GINPUT Dial low level driver source for GADC hardware.
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*
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* @defgroup Dial Dial
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* @ingroup GINPUT
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* @{
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*/
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#include "ch.h"
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#include "hal.h"
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#include "gfx.h"
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#if GFX_USE_GINPUT && GINPUT_NEED_DIAL
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#include "ginput/lld/dial.h"
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#if GINPUT_DIAL_NUM_PORTS >= 5
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#error "GINPUT: Dial - GADC driver currently only supports 4 devices"
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#endif
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static adcsample_t samplebuf[GINPUT_DIAL_NUM_PORTS];
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#if GINPUT_DIAL_CYCLE_POLL
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static uint16_t cycle;
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#endif
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static void GADCCallback(adcsample_t *buffer, void *param) {
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((DialCallbackFn)param)(buffer-samplebuf, buffer[0]);
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}
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void ginput_lld_dial_init(void) {
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#if GINPUT_DIAL_CYCLE_POLL
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cycle = 0;
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#endif
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}
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void ginput_lld_dial_poll(DialCallbackFn fn) {
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#if GINPUT_DIAL_CYCLE_POLL
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switch(cycle++) {
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#if GINPUT_DIAL_NUM_PORTS >= 1
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case 0:
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gadcLowSpeedStart(GINPUT_DIAL_DEVICE0, samplebuf+0, GADCCallback, (void *)fn);
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break;
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#endif
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#if GINPUT_DIAL_NUM_PORTS >= 2
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case 1:
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gadcLowSpeedStart(GINPUT_DIAL_DEVICE1, samplebuf+1, GADCCallback, (void *)fn);
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break;
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#endif
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#if GINPUT_DIAL_NUM_PORTS >= 3
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case 2:
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gadcLowSpeedStart(GINPUT_DIAL_DEVICE2, samplebuf+2, GADCCallback, (void *)fn);
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break;
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#endif
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#if GINPUT_DIAL_NUM_PORTS >= 4
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case 3:
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gadcLowSpeedStart(GINPUT_DIAL_DEVICE3, samplebuf+3, GADCCallback, (void *)fn);
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break;
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#endif
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}
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if (cycle >= GINPUT_DIAL_NUM_PORTS)
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cycle = 0;
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#else
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#if GINPUT_DIAL_NUM_PORTS >= 1
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gadcLowSpeedStart(GINPUT_DIAL_DEVICE0, samplebuf+0, GADCCallback, (void *)fn);
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#endif
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#if GINPUT_DIAL_NUM_PORTS >= 2
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gadcLowSpeedStart(GINPUT_DIAL_DEVICE1, samplebuf+1, GADCCallback, (void *)fn);
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#endif
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#if GINPUT_DIAL_NUM_PORTS >= 3
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gadcLowSpeedStart(GINPUT_DIAL_DEVICE2, samplebuf+2, GADCCallback, (void *)fn);
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#endif
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#if GINPUT_DIAL_NUM_PORTS >= 4
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gadcLowSpeedStart(GINPUT_DIAL_DEVICE3, samplebuf+3, GADCCallback, (void *)fn);
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#endif
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#endif
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}
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#endif /* GFX_USE_GINPUT && GINPUT_NEED_DIAL */
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/** @} */
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