Diff: nvic.h

Revision:

0:7a91348b4a02

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/nvic.h	Sun Jul 03 17:11:55 2011 +0000
@@ -0,0 +1,101 @@
+/* Copyright (C) 2011 by Ivo van Poorten <ivop@euronet.nl>
+ * This file is licensed under the terms of the GNU Lesser
+ * General Public License, version 3.
+ */
+
+#ifndef FASTLIB_NVIC_H
+#define FASTLIB_NVIC_H
+
+#include "fastlib/common.h"
+
+#define FL_NVIC_ISER0           ((volatile uint32_t *) 0xE000E100)
+#define FL_NVIC_ISER1           ((volatile uint32_t *) 0xE000E104)
+#define FL_NVIC_ICER0           ((volatile uint32_t *) 0xE000E180)
+#define FL_NVIC_ICER1           ((volatile uint32_t *) 0xE000E184)
+#define FL_NVIC_ISPR0           ((volatile uint32_t *) 0xE000E200)
+#define FL_NVIC_ISPR1           ((volatile uint32_t *) 0xE000E204)
+#define FL_NVIC_ICPR0           ((volatile uint32_t *) 0xE000E280)
+#define FL_NVIC_ICPR1           ((volatile uint32_t *) 0xE000E284)
+#define FL_NVIC_IABR0           ((volatile uint32_t *) 0xE000E300)
+#define FL_NVIC_IABR1           ((volatile uint32_t *) 0xE000E304)
+#define FL_NVIC_IPR0            ((volatile uint32_t *) 0xE000E400)
+#define FL_NVIC_IPR1            ((volatile uint32_t *) 0xE000E404)
+#define FL_NVIC_IPR2            ((volatile uint32_t *) 0xE000E408)
+#define FL_NVIC_IPR3            ((volatile uint32_t *) 0xE000E40C)
+#define FL_NVIC_IPR4            ((volatile uint32_t *) 0xE000E410)
+#define FL_NVIC_IPR5            ((volatile uint32_t *) 0xE000E414)
+#define FL_NVIC_IPR6            ((volatile uint32_t *) 0xE000E418)
+#define FL_NVIC_IPR7            ((volatile uint32_t *) 0xE000E41C)
+#define FL_NVIC_IPR8            ((volatile uint32_t *) 0xE000E420)
+#define FL_NVIC_STIR            ((volatile uint32_t *) 0xE000EF00)
+
+#define FL_NVIC_INT_WDT         0
+#define FL_NVIC_INT_TIMER0      1
+#define FL_NVIC_INT_TIMER1      2
+#define FL_NVIC_INT_TIMER2      3
+#define FL_NVIC_INT_TIMER3      4
+#define FL_NVIC_INT_UART0       5
+#define FL_NVIC_INT_UART1       6
+#define FL_NVIC_INT_UART2       7
+#define FL_NVIC_INT_UART3       8
+#define FL_NVIC_INT_PWM         9
+#define FL_NVIC_INT_I2C0        10
+#define FL_NVIC_INT_I2C1        11
+#define FL_NVIC_INT_I2C2        12
+#define FL_NVIC_INT_SPI         13
+#define FL_NVIC_INT_SSP0        14
+#define FL_NVIC_INT_SSP1        15
+#define FL_NVIC_INT_PLL0        16
+#define FL_NVIC_INT_RTC         17
+#define FL_NVIC_INT_EINT0       18
+#define FL_NVIC_INT_EINT1       19
+#define FL_NVIC_INT_EINT2       20
+#define FL_NVIC_INT_EINT3       21
+#define FL_NVIC_INT_ADC         22
+#define FL_NVIC_INT_BOD         23
+#define FL_NVIC_INT_USB         24
+#define FL_NVIC_INT_CAN         25
+#define FL_NVIC_INT_DMA         26
+#define FL_NVIC_INT_I2S         27
+#define FL_NVIC_INT_ENET        28
+#define FL_NVIC_INT_RIT         29
+#define FL_NVIC_INT_MCPWM       30
+#define FL_NVIC_INT_QEI         31
+
+#define FL_NVIC_INT_PLL1        32
+#define FL_NVIC_INT_USBACT      33
+#define FL_NVIC_INT_CANACT      34
+
+#define FL_NVIC_INTERRUPT_FUNC(x, y) \
+    static inline void fl_nvic_interrupt_##x(const unsigned interrupt) { \
+        if (interrupt < 32) *FL_NVIC_##y##0 |= 1U<<interrupt;            \
+        else                *FL_NVIC_##y##1 |= 1U<<(interrupt-32);       \
+    } \
+    static inline unsigned fl_nvic_interrupt_##x##_status(const unsigned interrupt) { \
+        if (interrupt < 32) return (*FL_NVIC_##y##0) & (1U<<interrupt);               \
+        else                return (*FL_NVIC_##y##1) & (1U<<(interrupt-32));          \
+    }
+
+FL_NVIC_INTERRUPT_FUNC(set_enable,    ISER)
+FL_NVIC_INTERRUPT_FUNC(clear_enable,  ICER)
+FL_NVIC_INTERRUPT_FUNC(set_pending,   ISPR)
+FL_NVIC_INTERRUPT_FUNC(clear_pending, ICPR)
+
+static inline unsigned fl_nvic_interrupt_active_bit_status(const unsigned interrupt) {
+    if (interrupt < 32) return (*FL_NVIC_IABR0) & (1U<<interrupt);
+    else                return (*FL_NVIC_IABR1) & (1U<<(interrupt-32));
+}
+
+static inline void fl_nvic_interrupt_set_priority(const unsigned interrupt, const unsigned priority) {
+    const unsigned i = interrupt >> 3,
+                   j = (31      <<3) << ((interrupt&3)<<3),
+                   k = (priority<<3) << ((interrupt&3)<<3);
+    *(FL_NVIC_IPR0 + i) &= ~j;
+    *(FL_NVIC_IPR0 + i) |=  k;
+}
+
+static inline void fl_nvic_interrupt_software_trigger(const unsigned interrupt) {
+    *FL_NVIC_STIR = interrupt;
+}
+
+#endif
\ No newline at end of file