X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=src%2Favr%2Fao_arch.h;h=d626e830ee97bf4bdb7bf760ef2832fff698853a;hb=77dc89ed5b7bf8f5b3fa3b6131660f1a98f583ea;hp=c189ccba08438d825348e874749917552520abb3;hpb=f1573a752425121d4c6a14285f1eb0fef3a8bea5;p=fw%2Faltos

diff --git a/src/avr/ao_arch.h b/src/avr/ao_arch.h
index c189ccba..d626e830 100644
--- a/src/avr/ao_arch.h
+++ b/src/avr/ao_arch.h
@@ -37,7 +37,9 @@
  * AVR definitions and code fragments for AltOS
  */
 
+#ifndef AO_STACK_SIZE
 #define AO_STACK_SIZE	116
+#endif
 
 /* Various definitions to make GCC look more like SDCC */
 
@@ -67,7 +69,11 @@ extern void putchar(char c);
 extern char getchar(void);
 extern void ao_avr_stdio_init(void);
 
-extern const uint16_t ao_serial_number;
+#define AO_ROMCONFIG_VERSION	2
+
+#define AO_ROMCONFIG_SYMBOL(a) const
+
+extern AO_ROMCONFIG_SYMBOL(0) uint16_t ao_serial_number;
 
 #define AVR_PUSH8(stack, val)	(*((stack)--) = (val))
 
@@ -105,9 +111,7 @@ extern uint8_t	ao_cpu_sleep_disable;
 		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 {					\
@@ -119,16 +123,28 @@ extern uint8_t	ao_cpu_sleep_disable;
 
 #define ao_arch_isr_stack()	/* nothing */
 
-#define ao_arch_cpu_idle() do {			\
-		if (!ao_cpu_sleep_disable)	\
+/* Idle the CPU (if possible) waiting for an interrupt. Enabling
+ * interrupts and sleeping the CPU must be adjacent to eliminate race
+ * conditions. In all cases, we execute a single nop with interrupts
+ * enabled
+ */
+#define ao_arch_wait_interrupt() do {		\
+		if (!ao_cpu_sleep_disable) {	\
+			sleep_enable();		\
+			sei();			\
 			sleep_cpu();		\
+			sleep_disable();	\
+		} else {			\
+			sei();			\
+		}				\
+		ao_arch_nop();			\
+		cli();				\
 	} 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"					\
@@ -145,14 +161,10 @@ extern uint8_t	ao_cpu_sleep_disable;
 
 #define ao_arch_critical(b) do { cli(); do { b } while (0); 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_arch_block_interrupts()	cli()
+#define ao_arch_release_interrupts()	sei()
 
-#define AO_ADC_RING	16
+#define AO_TELESCIENCE_NUM_ADC	12
 
 #endif /* _AO_ARCH_H_ */