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| author | Andrew Hannam <andrewh@inmarket.com.au> | 2012-11-26 18:45:26 +1000 |
|---|---|---|
| committer | Andrew Hannam <andrewh@inmarket.com.au> | 2012-11-26 18:45:26 +1000 |
| commit | 8275c8820f230342939a2410dd0b24c0f26a14e5 (patch) | |
| tree | fcb202fb077e7d78e1381e5ef531bbf96dcca3cf /src/ginput/toggle.c | |
| parent | 6cc2bc280cc7dc4cb546d94219210d65c15df2e1 (diff) | |
| download | uGFX-8275c8820f230342939a2410dd0b24c0f26a14e5.tar.gz uGFX-8275c8820f230342939a2410dd0b24c0f26a14e5.tar.bz2 uGFX-8275c8820f230342939a2410dd0b24c0f26a14e5.zip | |
Ginput and structure changes
GINPUT Touch including drivers
GTIMER fixes
GEVENT fixes
GWIN button completion
Structure changes to better seperate sections of a sub-system
Diffstat (limited to 'src/ginput/toggle.c')
| -rw-r--r-- | src/ginput/toggle.c | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/src/ginput/toggle.c b/src/ginput/toggle.c new file mode 100644 index 00000000..a49ebfd3 --- /dev/null +++ b/src/ginput/toggle.c @@ -0,0 +1,161 @@ +/*
+ ChibiOS/GFX - Copyright (C) 2012
+ Joel Bodenmann aka Tectu <joel@unormal.org>
+
+ This file is part of ChibiOS/GFX.
+
+ ChibiOS/GFX 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 3 of the License, or
+ (at your option) any later version.
+
+ ChibiOS/GFX is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/**
+ * @file src/ginput/toggle.c
+ * @brief GINPUT toggle code.
+ *
+ * @addtogroup GINPUT_TOGGLE
+ * @{
+ */
+#include "ch.h"
+#include "hal.h"
+#include "gtimer.h"
+#include "ginput.h"
+
+#if GINPUT_NEED_TOGGLE || defined(__DOXYGEN__)
+
+#include "lld/ginput/toggle.h"
+
+#ifndef GINPUT_TOGGLE_POLL_PERIOD
+ #define GINPUT_TOGGLE_POLL_PERIOD 250
+#endif
+
+#define GINPUT_TOGGLE_ISON 0x01
+#define GINPUT_TOGGLE_INVERT 0x02
+
+static GTIMER_DECL(ToggleTimer);
+static struct GEventToggleStatus_t {
+ uint8_t status;
+} ToggleStatus[GINPUT_TOGGLE_NUM_PORTS];
+
+// Our polling function
+static void TogglePoll(void *param) {
+ (void) param;
+
+ const GToggleConfig *ptc;
+ GSourceListener *psl;
+ GEventToggle *pe;
+ unsigned i, bits, mask;
+ uint8_t state;
+
+ // Loop while there are bits to get
+ for(ptc = GInputToggleConfigTable, i=0; i < GINPUT_TOGGLE_NUM_PORTS; ptc++) {
+
+ // Get the next block of bits
+ bits = ginput_lld_toggle_getbits(ptc) ^ ptc->invert;
+
+ // Extract the bits of use
+ for(mask = ptc->mask; i < GINPUT_TOGGLE_NUM_PORTS && mask; mask >>= 1, bits >>= 1) {
+ // Ignore bits not in our mask
+ if (!(mask & 1))
+ continue;
+
+ // Calculate our new state
+ state = ToggleStatus[i].status & ~GINPUT_TOGGLE_ISON;
+ if (state & GINPUT_TOGGLE_INVERT)
+ bits ^= 1;
+ if (bits & 1)
+ state |= GINPUT_TOGGLE_ISON;
+
+ // Has it changed?
+ if ((state ^ ToggleStatus[i].status) & GINPUT_TOGGLE_ISON) {
+
+ // Save the new state
+ ToggleStatus[i].status = state;
+
+ // Send the event to the listeners that are interested.
+ psl = 0;
+ while ((psl = geventGetSourceListener((GSourceHandle)(ToggleStatus+i), psl))) {
+ if (!(pe = (GEventToggle *)geventGetEventBuffer(psl)))
+ continue;
+ if ((state & GINPUT_TOGGLE_ISON)) {
+ if ((psl->listenflags & GLISTEN_TOGGLE_ON)) {
+ pe->type = GEVENT_TOGGLE;
+ pe->instance = i;
+ pe->on = TRUE;
+ geventSendEvent(psl);
+ }
+ } else {
+ if ((psl->listenflags & GLISTEN_TOGGLE_OFF)) {
+ pe->type = GEVENT_TOGGLE;
+ pe->instance = i;
+ pe->on = FALSE;
+ geventSendEvent(psl);
+ }
+ }
+ }
+ }
+
+ // Next toggle switch
+ i++;
+ }
+ }
+}
+
+/* Hardware Toggle/Switch/Button Functions */
+GSourceHandle ginputGetToggle(uint16_t instance) {
+ const GToggleConfig *ptc;
+
+ if (instance >= GINPUT_TOGGLE_NUM_PORTS)
+ return 0;
+
+ // Do we need to initialise the toggle subsystem?
+ if (!gtimerIsActive(&ToggleTimer)) {
+ for(ptc = GInputToggleConfigTable; ptc < GInputToggleConfigTable+sizeof(GInputToggleConfigTable)/sizeof(GInputToggleConfigTable[0]); ptc++)
+ ginput_lld_toggle_init(ptc);
+ gtimerStart(&ToggleTimer, TogglePoll, 0, TRUE, GINPUT_TOGGLE_POLL_PERIOD);
+ }
+
+ // OK - return this input
+ return (GSourceHandle)(ToggleStatus+instance);
+}
+
+// If invert is true, invert the on/off sense for the toggle
+void ginputInvertToggle(uint16_t instance, bool_t invert) {
+ if (instance >= GINPUT_TOGGLE_NUM_PORTS)
+ return;
+ if (invert) {
+ if (!(ToggleStatus[instance].status & GINPUT_TOGGLE_INVERT)) {
+ ToggleStatus[instance].status |= GINPUT_TOGGLE_INVERT;
+ ToggleStatus[instance].status ^= GINPUT_TOGGLE_ISON;
+ }
+ } else {
+ if ((ToggleStatus[instance].status & GINPUT_TOGGLE_INVERT)) {
+ ToggleStatus[instance].status &= ~GINPUT_TOGGLE_INVERT;
+ ToggleStatus[instance].status ^= GINPUT_TOGGLE_ISON;
+ }
+ }
+}
+
+/* Get the current toggle status.
+ * Returns FALSE on error (eg invalid instance)
+ */
+bool_t ginputGetToggleStatus(uint16_t instance, GEventToggle *ptoggle) {
+ if (instance >= GINPUT_TOGGLE_NUM_PORTS)
+ return FALSE;
+ ptoggle->type = GEVENT_TOGGLE;
+ ptoggle->instance = instance;
+ ptoggle->on = (ToggleStatus[instance].status & GINPUT_TOGGLE_ISON) ? TRUE : FALSE;
+ return TRUE;
+}
+
+#endif /* GINPUT_NEED_TOGGLE */
+/** @} */
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