diff options
Diffstat (limited to 'watch-library/hal_gpio.h')
| -rwxr-xr-x | watch-library/hal_gpio.h | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/watch-library/hal_gpio.h b/watch-library/hal_gpio.h new file mode 100755 index 00000000..821a7a9b --- /dev/null +++ b/watch-library/hal_gpio.h @@ -0,0 +1,126 @@ +/*
+ * Copyright (c) 2014-2016, Alex Taradov <alex@taradov.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _HAL_GPIO_H_
+#define _HAL_GPIO_H_
+
+/*- Definitions -------------------------------------------------------------*/
+#define HAL_GPIO_PORTA 0
+#define HAL_GPIO_PORTB 1
+#define HAL_GPIO_PORTC 2
+
+#define HAL_GPIO_PMUX_A 0
+#define HAL_GPIO_PMUX_B 1
+#define HAL_GPIO_PMUX_C 2
+#define HAL_GPIO_PMUX_D 3
+#define HAL_GPIO_PMUX_E 4
+#define HAL_GPIO_PMUX_F 5
+#define HAL_GPIO_PMUX_G 6
+#define HAL_GPIO_PMUX_H 7
+#define HAL_GPIO_PMUX_I 8
+
+#define HAL_GPIO_PIN(name, port, pin) \
+ static inline void HAL_GPIO_##name##_set(void) \
+ { \
+ PORT->Group[HAL_GPIO_PORT##port].OUTSET.reg = (1 << pin); \
+ (void)HAL_GPIO_##name##_set; \
+ } \
+ \
+ static inline void HAL_GPIO_##name##_clr(void) \
+ { \
+ PORT->Group[HAL_GPIO_PORT##port].OUTCLR.reg = (1 << pin); \
+ (void)HAL_GPIO_##name##_clr; \
+ } \
+ \
+ static inline void HAL_GPIO_##name##_toggle(void) \
+ { \
+ PORT->Group[HAL_GPIO_PORT##port].OUTTGL.reg = (1 << pin); \
+ (void)HAL_GPIO_##name##_toggle; \
+ } \
+ \
+ static inline void HAL_GPIO_##name##_write(int value) \
+ { \
+ if (value) \
+ PORT->Group[HAL_GPIO_PORT##port].OUTSET.reg = (1 << pin); \
+ else \
+ PORT->Group[HAL_GPIO_PORT##port].OUTCLR.reg = (1 << pin); \
+ (void)HAL_GPIO_##name##_write; \
+ } \
+ \
+ static inline void HAL_GPIO_##name##_in(void) \
+ { \
+ PORT->Group[HAL_GPIO_PORT##port].DIRCLR.reg = (1 << pin); \
+ PORT->Group[HAL_GPIO_PORT##port].PINCFG[pin].reg |= PORT_PINCFG_INEN; \
+ PORT->Group[HAL_GPIO_PORT##port].PINCFG[pin].reg &= ~PORT_PINCFG_PULLEN; \
+ (void)HAL_GPIO_##name##_in; \
+ } \
+ \
+ static inline void HAL_GPIO_##name##_out(void) \
+ { \
+ PORT->Group[HAL_GPIO_PORT##port].DIRSET.reg = (1 << pin); \
+ PORT->Group[HAL_GPIO_PORT##port].PINCFG[pin].reg |= PORT_PINCFG_INEN; \
+ (void)HAL_GPIO_##name##_out; \
+ } \
+ \
+ static inline void HAL_GPIO_##name##_pullup(void) \
+ { \
+ PORT->Group[HAL_GPIO_PORT##port].OUTSET.reg = (1 << pin); \
+ PORT->Group[HAL_GPIO_PORT##port].PINCFG[pin].reg |= PORT_PINCFG_PULLEN; \
+ (void)HAL_GPIO_##name##_pullup; \
+ } \
+ \
+ static inline int HAL_GPIO_##name##_read(void) \
+ { \
+ return (PORT->Group[HAL_GPIO_PORT##port].IN.reg & (1 << pin)) != 0; \
+ (void)HAL_GPIO_##name##_read; \
+ } \
+ \
+ static inline int HAL_GPIO_##name##_state(void) \
+ { \
+ return (PORT->Group[HAL_GPIO_PORT##port].DIR.reg & (1 << pin)) != 0; \
+ (void)HAL_GPIO_##name##_state; \
+ } \
+ \
+ static inline void HAL_GPIO_##name##_pmuxen(int mux) \
+ { \
+ PORT->Group[HAL_GPIO_PORT##port].PINCFG[pin].reg |= PORT_PINCFG_PMUXEN; \
+ if (pin & 1) \
+ PORT->Group[HAL_GPIO_PORT##port].PMUX[pin>>1].bit.PMUXO = mux; \
+ else \
+ PORT->Group[HAL_GPIO_PORT##port].PMUX[pin>>1].bit.PMUXE = mux; \
+ (void)HAL_GPIO_##name##_pmuxen; \
+ } \
+ \
+ static inline void HAL_GPIO_##name##_pmuxdis(void) \
+ { \
+ PORT->Group[HAL_GPIO_PORT##port].PINCFG[pin].reg &= ~PORT_PINCFG_PMUXEN; \
+ (void)HAL_GPIO_##name##_pmuxdis; \
+ } \
+
+#endif // _HAL_GPIO_H_
+
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