#ifndef _AO_ARCH_H_
#define _AO_ARCH_H_
+#include <stdio.h>
#include <avr/io.h>
#include <avr/interrupt.h>
+#include <avr/sleep.h>
#ifdef AVR_DEMO
#define TEENSY 1
#define __reentrant
#define __critical
#define __interrupt(n)
+#define __at(n)
#define ao_arch_reboot() /* XXX */
extern void putchar(char c);
extern char getchar(void);
+extern void ao_avr_stdio_init(void);
-extern int ao_serial_number;
+extern const uint16_t ao_serial_number;
+
+#define AVR_PUSH8(stack, val) (*((stack)--) = (val))
+
+extern uint8_t ao_cpu_sleep_disable;
+
+#define ao_arch_task_globals uint8_t ao_cpu_sleep_disable;
+
+#define ao_arch_task_members\
+ uint8_t *sp; /* saved stack pointer */
#define ao_arch_init_stack(task, start) do { \
uint8_t *sp = task->stack + AO_STACK_SIZE - 1; \
int i; \
\
/* Return address */ \
- PUSH8(sp, a); \
- PUSH8(sp, (a >> 8)); \
+ AVR_PUSH8(sp, a); \
+ AVR_PUSH8(sp, (a >> 8)); \
\
/* Clear register values */ \
i = 32; \
while (i--) \
- PUSH8(sp, 0); \
+ AVR_PUSH8(sp, 0); \
\
/* SREG with interrupts enabled */ \
- PUSH8(sp, 0x80); \
+ AVR_PUSH8(sp, 0x80); \
task->sp = sp; \
} while (0);
-#define ao_arch_save_context() do { \
- asm("push r31" "\n\t" "push r30"); \
- asm("push r29" "\n\t" "push r28" "\n\t" "push r27" "\n\t" "push r26" "\n\t" "push r25"); \
- asm("push r24" "\n\t" "push r23" "\n\t" "push r22" "\n\t" "push r21" "\n\t" "push r20"); \
- asm("push r19" "\n\t" "push r18" "\n\t" "push r17" "\n\t" "push r16" "\n\t" "push r15"); \
- asm("push r14" "\n\t" "push r13" "\n\t" "push r12" "\n\t" "push r11" "\n\t" "push r10"); \
- asm("push r9" "\n\t" "push r8" "\n\t" "push r7" "\n\t" "push r6" "\n\t" "push r5"); \
- asm("push r4" "\n\t" "push r3" "\n\t" "push r2" "\n\t" "push r1" "\n\t" "push r0"); \
- asm("in r0, __SREG__" "\n\t" "push r0"); \
- sei(); \
+#define ao_arch_save_regs() do { \
+ asm("push r31" "\n\t" "push r30"); \
+ asm("push r29" "\n\t" "push r28" "\n\t" "push r27" "\n\t" "push r26" "\n\t" "push r25"); \
+ asm("push r24" "\n\t" "push r23" "\n\t" "push r22" "\n\t" "push r21" "\n\t" "push r20"); \
+ asm("push r19" "\n\t" "push r18" "\n\t" "push r17" "\n\t" "push r16" "\n\t" "push r15"); \
+ asm("push r14" "\n\t" "push r13" "\n\t" "push r12" "\n\t" "push r11" "\n\t" "push r10"); \
+ asm("push r9" "\n\t" "push r8" "\n\t" "push r7" "\n\t" "push r6" "\n\t" "push r5"); \
+ asm("push r4" "\n\t" "push r3" "\n\t" "push r2" "\n\t" "push r1" "\n\t" "push r0"); \
+ cli(); \
+ asm("in r0, __SREG__" "\n\t" "push r0"); \
+ sei(); \
+ } while (0)
+
+#define ao_arch_save_stack() do { \
+ uint8_t sp_l, sp_h; \
+ asm("in %0,__SP_L__" : "=&r" (sp_l) ); \
+ asm("in %0,__SP_H__" : "=&r" (sp_h) ); \
+ ao_cur_task->sp = (uint8_t *) ((uint16_t) sp_l | ((uint16_t) sp_h << 8)); \
} while (0)
+#define ao_arch_isr_stack() /* nothing */
+
+#define ao_arch_cpu_idle() do { \
+ if (!ao_cpu_sleep_disable) \
+ sleep_cpu(); \
+ } while (0)
+
+#define ao_arch_restore_stack() do { \
+ uint8_t sp_l, sp_h; \
+ sp_l = (uint16_t) ao_cur_task->sp; \
+ sp_h = ((uint16_t) ao_cur_task->sp) >> 8; \
+ cli(); \
+ asm("out __SP_H__,%0" : : "r" (sp_h) ); \
+ asm("out __SP_L__,%0" : : "r" (sp_l) ); \
+ asm("pop r0" "\n\t" \
+ "out __SREG__, r0"); \
+ asm("pop r0" "\n\t" "pop r1" "\n\t" "pop r2" "\n\t" "pop r3" "\n\t" "pop r4"); \
+ asm("pop r5" "\n\t" "pop r6" "\n\t" "pop r7" "\n\t" "pop r8" "\n\t" "pop r9"); \
+ asm("pop r10" "\n\t" "pop r11" "\n\t" "pop r12" "\n\t" "pop r13" "\n\t" "pop r14"); \
+ asm("pop r15" "\n\t" "pop r16" "\n\t" "pop r17" "\n\t" "pop r18" "\n\t" "pop r19"); \
+ asm("pop r20" "\n\t" "pop r21" "\n\t" "pop r22" "\n\t" "pop r23" "\n\t" "pop r24"); \
+ asm("pop r25" "\n\t" "pop r26" "\n\t" "pop r27" "\n\t" "pop r28" "\n\t" "pop r29"); \
+ asm("pop r30" "\n\t" "pop r31"); \
+ asm("ret"); \
+ } while(0)
+
+#define ao_arch_critical(b) do { cli(); b; sei(); } while (0)
+
+#define AO_TELESCIENCE_NUM_ADC 12
+
+struct ao_adc {
+ uint16_t tick; /* tick when the sample was read */
+ uint16_t adc[AO_TELESCIENCE_NUM_ADC]; /* samples */
+};
+
+#define AO_ADC_RING 16
+
#endif /* _AO_ARCH_H_ */
+
projects / fw / altos / blobdiff