diff options
Diffstat (limited to 'os/hal/ports/NRF5/LLD/GPIOv1/hal_pal_lld.c')
| -rw-r--r-- | os/hal/ports/NRF5/LLD/GPIOv1/hal_pal_lld.c | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/os/hal/ports/NRF5/LLD/GPIOv1/hal_pal_lld.c b/os/hal/ports/NRF5/LLD/GPIOv1/hal_pal_lld.c index 9cfad8d..3029367 100644 --- a/os/hal/ports/NRF5/LLD/GPIOv1/hal_pal_lld.c +++ b/os/hal/ports/NRF5/LLD/GPIOv1/hal_pal_lld.c @@ -1,4 +1,5 @@ /*
+ Copyright (C) 2018 Konstantin Oblaukhov
Copyright (C) 2015 Fabio Utzig
Licensed under the Apache License, Version 2.0 (the "License");
@@ -35,6 +36,11 @@ /* Driver exported variables. */
/*===========================================================================*/
+/**
+ * @brief Event records for the GPIOTE channels.
+ */
+palevent_t _pal_events[NRF5_GPIOTE_NUM_CHANNELS];
+
/*===========================================================================*/
/* Driver local variables and types. */
/*===========================================================================*/
@@ -127,6 +133,12 @@ void _pal_lld_init(const PALConfig *config) for (i = 0; i < TOTAL_GPIO_PADS; i++) {
pal_lld_setpadmode(IOPORT1, i, config->pads[i]);
}
+
+#if PAL_USE_CALLBACKS || PAL_USE_WAIT || defined(__DOXYGEN__)
+ for (i = 0; i < NRF5_GPIOTE_NUM_CHANNELS; i++) {
+ _pal_init_event(i);
+ }
+#endif
}
/**
@@ -153,6 +165,76 @@ void _pal_lld_setgroupmode(ioportid_t port, }
}
+#if PAL_USE_CALLBACKS || PAL_USE_WAIT || defined(__DOXYGEN__)
+/**
+ * @brief Pad event enable.
+ * @note Programming an unknown or unsupported mode is silently ignored.
+ *
+ * @param[in] port port identifier
+ * @param[in] pad pad number within the port
+ * @param[in] mode pad event mode
+ *
+ * @notapi
+ */
+void _pal_lld_enablepadevent(ioportid_t port,
+ iopadid_t pad,
+ ioeventmode_t mode) {
+ (void)port;
+
+ int ch = NRF5_PAL_PAD_TO_EVENT(pad);
+ uint32_t config = NRF_GPIOTE->CONFIG[ch];
+
+ osalDbgAssert((((config & GPIOTE_CONFIG_PSEL_Msk) >> GPIOTE_CONFIG_PSEL_Pos) == pad) ||
+ (((config & GPIOTE_CONFIG_MODE_Msk) >> GPIOTE_CONFIG_MODE_Pos) != GPIOTE_CONFIG_MODE_Event),
+ "channel already in use");
+
+ if ((mode & PAL_EVENT_MODE_RISING_EDGE) && (mode & PAL_EVENT_MODE_FALLING_EDGE))
+ config |= (GPIOTE_CONFIG_POLARITY_Toggle << GPIOTE_CONFIG_POLARITY_Pos);
+ else if (mode & PAL_EVENT_MODE_RISING_EDGE)
+ config |= (GPIOTE_CONFIG_POLARITY_LoToHi << GPIOTE_CONFIG_POLARITY_Pos);
+ else
+ config |= (GPIOTE_CONFIG_POLARITY_HiToLo << GPIOTE_CONFIG_POLARITY_Pos);
+
+ config |= (pad << GPIOTE_CONFIG_PSEL_Pos);
+
+ config |= (GPIOTE_CONFIG_MODE_Event << GPIOTE_CONFIG_MODE_Pos);
+
+ NRF_GPIOTE->CONFIG[ch] = config;
+ NRF_GPIOTE->EVENTS_PORT = 0;
+ NRF_GPIOTE->EVENTS_IN[ch] = 0;
+ NRF_GPIOTE->INTENSET = (1 << ch);
+}
+
+/**
+ * @brief Pad event disable.
+ * @details This function disables previously programmed event callbacks.
+ *
+ * @param[in] port port identifier
+ * @param[in] pad pad number within the port
+ *
+ * @notapi
+ */
+void _pal_lld_disablepadevent(ioportid_t port, iopadid_t pad) {
+ (void)port;
+ int ch = NRF5_PAL_PAD_TO_EVENT(pad);
+ uint32_t config = NRF_GPIOTE->CONFIG[ch];
+
+ if (((config & GPIOTE_CONFIG_MODE_Msk) >> GPIOTE_CONFIG_MODE_Pos) == GPIOTE_CONFIG_MODE_Event)
+ {
+ osalDbgAssert(((config & GPIOTE_CONFIG_PSEL_Msk) >> GPIOTE_CONFIG_PSEL_Pos) == pad,
+ "channel mapped on different pad");
+
+ NRF_GPIOTE->INTENSET &= ~(1 << ch);
+ NRF_GPIOTE->CONFIG[ch] = 0;
+
+#if PAL_USE_CALLBACKS || PAL_USE_WAIT
+ /* Callback cleared and/or thread reset.*/
+ _pal_clear_event(pad);
+#endif
+ }
+}
+#endif /* PAL_USE_CALLBACKS || PAL_USE_WAIT */
+
#endif /* HAL_USE_PAL == TRUE */
/** @} */
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