git.gag.com Git - fw/altos/blob - src/stm/ao_interrupt.c

   1 /*
   2  * Copyright © 2012 Keith Packard <keithp@keithp.com>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; version 2 of the License.
   7  *
   8  * This program is distributed in the hope that it will be useful, but
   9  * WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  * General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along
  14  * with this program; if not, write to the Free Software Foundation, Inc.,
  15  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  16  */
  17
  18 #include "stm32l.h"
  19 #include <string.h>
  20
  21 extern void main(void);
  22 extern char __stack__;
  23 extern char __text_start__, __text_end__;
  24 extern char __data_start__, __data_end__;
  25 extern char __bss_start__, __bss_end__;
  26
  27 /* Interrupt functions */
  28
  29 void stm_halt_isr(void)
  30 {
  31         for(;;);
  32 }
  33
  34 void stm_ignore_isr(void)
  35 {
  36 }
  37
  38 void start(void) {
  39         memcpy(&__data_start__, &__text_end__, &__data_end__ - &__data_start__);
  40         memset(&__bss_start__, '\0', &__bss_end__ - &__bss_start__);
  41         main();
  42 }
  43
  44 #define STRINGIFY(x) #x
  45
  46 #define isr(name) \
  47         void __attribute__ ((weak)) stm_ ## name ## _isr(void); \
  48         _Pragma(STRINGIFY(weak stm_ ## name ## _isr = stm_ignore_isr))
  49
  50 #define isr_halt(name) \
  51         void __attribute__ ((weak)) stm_ ## name ## _isr(void); \
  52         _Pragma(STRINGIFY(weak stm_ ## name ## _isr = stm_halt_isr))
  53
  54 isr(nmi)
  55 isr_halt(hardfault)
  56 isr_halt(memmanage)
  57 isr_halt(busfault)
  58 isr_halt(usagefault)
  59 isr(svc)
  60 isr(debugmon)
  61 isr(pendsv)
  62 isr(systick)
  63 isr(wwdg)
  64 isr(pvd)
  65 isr(tamper_stamp)
  66 isr(rtc_wkup)
  67 isr(flash)
  68 isr(rcc)
  69 isr(exti0)
  70 isr(exti1)
  71 isr(exti2)
  72 isr(exti3)
  73 isr(exti4)
  74 isr(dma1_channel1)
  75 isr(dma1_channel2)
  76 isr(dma1_channel3)
  77 isr(dma1_channel4)
  78 isr(dma1_channel5)
  79 isr(dma1_channel6)
  80 isr(dma1_channel7)
  81 isr(adc1)
  82 isr(usb_hp)
  83 isr(usb_lp)
  84 isr(dac)
  85 isr(comp)
  86 isr(exti9_5)
  87 isr(lcd)
  88 isr(tim9)
  89 isr(tim10)
  90 isr(tim11)
  91 isr(tim2)
  92 isr(tim3)
  93 isr(tim4)
  94 isr(i2c1_ev)
  95 isr(i2c1_er)
  96 isr(i2c2_ev)
  97 isr(i2c2_er)
  98 isr(spi1)
  99 isr(spi2)
 100 isr(usart1)
 101 isr(usart2)
 102 isr(usart3)
 103 isr(exti15_10)
 104 isr(rtc_alarm)
 105 isr(usb_fs_wkup)
 106 isr(tim6)
 107 isr(tim7)
 108
 109 #define i(addr,name)    [(addr)/4] = stm_ ## name ## _isr
 110
 111 __attribute__ ((section(".interrupt")))
 112 const void *stm_interrupt_vector[] = {
 113         [0] = &__stack__,
 114         [1] = start,
 115         i(0x08, nmi),
 116         i(0x0c, hardfault),
 117         i(0x10, memmanage),
 118         i(0x14, busfault),
 119         i(0x18, usagefault),
 120         i(0x2c, svc),
 121         i(0x30, debugmon),
 122         i(0x38, pendsv),
 123         i(0x3c, systick),
 124         i(0x40, wwdg),
 125         i(0x44, pvd),
 126         i(0x48, tamper_stamp),
 127         i(0x4c, rtc_wkup),
 128         i(0x50, flash),
 129         i(0x54, rcc),
 130         i(0x58, exti0),
 131         i(0x5c, exti1),
 132         i(0x60, exti2),
 133         i(0x64, exti3),
 134         i(0x68, exti4),
 135         i(0x6c, dma1_channel1),
 136         i(0x70, dma1_channel2),
 137         i(0x74, dma1_channel3),
 138         i(0x78, dma1_channel4),
 139         i(0x7c, dma1_channel5),
 140         i(0x80, dma1_channel6),
 141         i(0x84, dma1_channel7),
 142         i(0x88, adc1),
 143         i(0x8c, usb_hp),
 144         i(0x90, usb_lp),
 145         i(0x94, dac),
 146         i(0x98, comp),
 147         i(0x9c, exti9_5),
 148         i(0xa0, lcd),
 149         i(0xa4, tim9),
 150         i(0xa8, tim10),
 151         i(0xac, tim11),
 152         i(0xb0, tim2),
 153         i(0xb4, tim3),
 154         i(0xb8, tim4),
 155         i(0xbc, i2c1_ev),
 156         i(0xc0, i2c1_er),
 157         i(0xc4, i2c2_ev),
 158         i(0xc8, i2c2_er),
 159         i(0xcc, spi1),
 160         i(0xd0, spi2),
 161         i(0xd4, usart1),
 162         i(0xd8, usart2),
 163         i(0xdc, usart3),
 164         i(0xe0, exti15_10),
 165         i(0xe4, rtc_alarm),
 166         i(0xe8, usb_fs_wkup),
 167         i(0xec, tim6),
 168         i(0xf0, tim7),
 169 };