Switch from GPLv2 to GPLv2+
[fw/altos] / src / cc1111 / ao_arch.h
index 7fdfad80825cbbd22fffe62d6e0b89e7d52bd0f3..bacfabb87f53852ba1f63b1803e15f178f76f120 100644 (file)
@@ -3,7 +3,8 @@
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
  *
  * This program is distributed in the hope that it will be useful, but
  * WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -40,6 +41,8 @@
 #define AO_STACK_END   0xfe
 #define AO_STACK_SIZE  (AO_STACK_END - AO_STACK_START + 1)
 
+#define AO_PORT_TYPE   uint8_t
+
 #define ao_arch_reboot() do {                                  \
        WDCTL = WDCTL_EN | WDCTL_MODE_WATCHDOG | WDCTL_INT_64;  \
        ao_delay(AO_SEC_TO_TICKS(2));                           \
@@ -112,9 +115,7 @@ extern AO_ROMCONFIG_SYMBOL(0x00a6) uint32_t ao_radio_cal;
        /* Push ACC first, as when restoring the context it must be restored \
         * last (it is used to set the IE register). */                 \
        push    ACC                                                     \
-       /* Store the IE register then enable interrupts. */             \
        push    _IEN0                                                   \
-       setb    _EA                                                     \
        push    DPL                                                     \
        push    DPH                                                     \
        push    b                                                       \
@@ -147,11 +148,18 @@ extern AO_ROMCONFIG_SYMBOL(0x00a6) uint32_t ao_radio_cal;
                while (--stack_len);                                    \
        }
 
-#define ao_arch_isr_stack()                                            \
-       /* Empty the stack; might as well let interrupts have the whole thing */ \
-       (SP = AO_STACK_START - 1)
+/* Empty the stack; might as well let interrupts have the whole thing */
+#define ao_arch_isr_stack()            (SP = AO_STACK_START - 1)
+
+#define ao_arch_block_interrupts()     __asm clr _EA __endasm
+#define ao_arch_release_interrupts()   __asm setb _EA __endasm
 
-#define ao_arch_cpu_idle()     (PCON = PCON_IDLE)
+/* Idle the CPU, waking when an interrupt occurs */
+#define ao_arch_wait_interrupt() do {          \
+               ao_arch_release_interrupts();   \
+               (PCON = PCON_IDLE);             \
+               ao_arch_block_interrupts();     \
+       } while (0)
 
 #define ao_arch_restore_stack() {                                      \
                uint8_t stack_len;                                      \
@@ -192,7 +200,7 @@ extern AO_ROMCONFIG_SYMBOL(0x00a6) uint32_t ao_radio_cal;
                0098$:                                                  \
                        SETB            _EA                             \
                0099$:                                                  \
-               /* Finally pop off the ACC, which was the first register saved. */ \
+               /* Finally restore ACC, which was the first register saved. */ \
                pop             ACC                                     \
                ret                                                     \
                __endasm;                                               \
@@ -221,7 +229,7 @@ void
 ao_button_init(void);
 
 char
-ao_button_get(void) __critical;
+ao_button_get(uint16_t timeout) __critical;
 
 void
 ao_button_clear(void) __critical;
@@ -316,4 +324,11 @@ void
 ao_serial1_tx_isr(void) ao_arch_interrupt(14);
 #endif
 
+#if HAS_EXTI_0
+void
+ao_p0_isr(void) __interrupt(13);
+#endif
+
+#define AO_ADC_MAX     32767
+
 #endif /* _AO_ARCH_H_ */