nvic.h

00001 /* Copyright (C) 2011 by Ivo van Poorten <ivop@euronet.nl>
00002  * This file is licensed under the terms of the GNU Lesser
00003  * General Public License, version 3.
00004  */
00005 
00006 #ifndef FASTLIB_NVIC_H
00007 #define FASTLIB_NVIC_H
00008 
00009 #include "fastlib/common.h"
00010 
00011 #define FL_NVIC_ISER0           ((volatile uint32_t *) 0xE000E100)
00012 #define FL_NVIC_ISER1           ((volatile uint32_t *) 0xE000E104)
00013 #define FL_NVIC_ICER0           ((volatile uint32_t *) 0xE000E180)
00014 #define FL_NVIC_ICER1           ((volatile uint32_t *) 0xE000E184)
00015 #define FL_NVIC_ISPR0           ((volatile uint32_t *) 0xE000E200)
00016 #define FL_NVIC_ISPR1           ((volatile uint32_t *) 0xE000E204)
00017 #define FL_NVIC_ICPR0           ((volatile uint32_t *) 0xE000E280)
00018 #define FL_NVIC_ICPR1           ((volatile uint32_t *) 0xE000E284)
00019 #define FL_NVIC_IABR0           ((volatile uint32_t *) 0xE000E300)
00020 #define FL_NVIC_IABR1           ((volatile uint32_t *) 0xE000E304)
00021 #define FL_NVIC_IPR0            ((volatile uint32_t *) 0xE000E400)
00022 #define FL_NVIC_IPR1            ((volatile uint32_t *) 0xE000E404)
00023 #define FL_NVIC_IPR2            ((volatile uint32_t *) 0xE000E408)
00024 #define FL_NVIC_IPR3            ((volatile uint32_t *) 0xE000E40C)
00025 #define FL_NVIC_IPR4            ((volatile uint32_t *) 0xE000E410)
00026 #define FL_NVIC_IPR5            ((volatile uint32_t *) 0xE000E414)
00027 #define FL_NVIC_IPR6            ((volatile uint32_t *) 0xE000E418)
00028 #define FL_NVIC_IPR7            ((volatile uint32_t *) 0xE000E41C)
00029 #define FL_NVIC_IPR8            ((volatile uint32_t *) 0xE000E420)
00030 #define FL_NVIC_STIR            ((volatile uint32_t *) 0xE000EF00)
00031 
00032 #define FL_NVIC_INT_WDT         0
00033 #define FL_NVIC_INT_TIMER0      1
00034 #define FL_NVIC_INT_TIMER1      2
00035 #define FL_NVIC_INT_TIMER2      3
00036 #define FL_NVIC_INT_TIMER3      4
00037 #define FL_NVIC_INT_UART0       5
00038 #define FL_NVIC_INT_UART1       6
00039 #define FL_NVIC_INT_UART2       7
00040 #define FL_NVIC_INT_UART3       8
00041 #define FL_NVIC_INT_PWM         9
00042 #define FL_NVIC_INT_I2C0        10
00043 #define FL_NVIC_INT_I2C1        11
00044 #define FL_NVIC_INT_I2C2        12
00045 #define FL_NVIC_INT_SPI         13
00046 #define FL_NVIC_INT_SSP0        14
00047 #define FL_NVIC_INT_SSP1        15
00048 #define FL_NVIC_INT_PLL0        16
00049 #define FL_NVIC_INT_RTC         17
00050 #define FL_NVIC_INT_EINT0       18
00051 #define FL_NVIC_INT_EINT1       19
00052 #define FL_NVIC_INT_EINT2       20
00053 #define FL_NVIC_INT_EINT3       21
00054 #define FL_NVIC_INT_ADC         22
00055 #define FL_NVIC_INT_BOD         23
00056 #define FL_NVIC_INT_USB         24
00057 #define FL_NVIC_INT_CAN         25
00058 #define FL_NVIC_INT_DMA         26
00059 #define FL_NVIC_INT_I2S         27
00060 #define FL_NVIC_INT_ENET        28
00061 #define FL_NVIC_INT_RIT         29
00062 #define FL_NVIC_INT_MCPWM       30
00063 #define FL_NVIC_INT_QEI         31
00064 
00065 #define FL_NVIC_INT_PLL1        32
00066 #define FL_NVIC_INT_USBACT      33
00067 #define FL_NVIC_INT_CANACT      34
00068 
00069 #define FL_NVIC_INTERRUPT_FUNC(x, y) \
00070     static inline void fl_nvic_interrupt_##x(const unsigned interrupt) { \
00071         if (interrupt < 32) *FL_NVIC_##y##0 |= 1U<<interrupt;            \
00072         else                *FL_NVIC_##y##1 |= 1U<<(interrupt-32);       \
00073     } \
00074     static inline unsigned fl_nvic_interrupt_##x##_status(const unsigned interrupt) { \
00075         if (interrupt < 32) return (*FL_NVIC_##y##0) & (1U<<interrupt);               \
00076         else                return (*FL_NVIC_##y##1) & (1U<<(interrupt-32));          \
00077     }
00078 
00079 FL_NVIC_INTERRUPT_FUNC(set_enable,    ISER)
00080 FL_NVIC_INTERRUPT_FUNC(clear_enable,  ICER)
00081 FL_NVIC_INTERRUPT_FUNC(set_pending,   ISPR)
00082 FL_NVIC_INTERRUPT_FUNC(clear_pending, ICPR)
00083 
00084 static inline unsigned fl_nvic_interrupt_active_bit_status(const unsigned interrupt) {
00085     if (interrupt < 32) return (*FL_NVIC_IABR0) & (1U<<interrupt);
00086     else                return (*FL_NVIC_IABR1) & (1U<<(interrupt-32));
00087 }
00088 
00089 static inline void fl_nvic_interrupt_set_priority(const unsigned interrupt, const unsigned priority) {
00090     const unsigned i = interrupt >> 3,
00091                    j = (31      <<3) << ((interrupt&3)<<3),
00092                    k = (priority<<3) << ((interrupt&3)<<3);
00093     *(FL_NVIC_IPR0 + i) &= ~j;
00094     *(FL_NVIC_IPR0 + i) |=  k;
00095 }
00096 
00097 static inline void fl_nvic_interrupt_software_trigger(const unsigned interrupt) {
00098     *FL_NVIC_STIR = interrupt;
00099 }
00100 
00101 #endif