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/*
* Copyright © 2011 Keith Packard <keithp@keithp.com>
*
* 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.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
/*
* CC1111 definitions and code fragments for AltOS
*/
#ifndef _AO_ARCH_H_
#define _AO_ARCH_H_
#include "cc1111.h"
/* Convert a __data pointer into an __xdata pointer */
#define DATA_TO_XDATA(a) ((void __xdata *) ((uint8_t) (a) | 0xff00))
/* Stack runs from above the allocated __data space to 0xfe, which avoids
* writing to 0xff as that triggers the stack overflow indicator
*/
#define AO_STACK_START 0x90
#define AO_STACK_END 0xfe
#define AO_STACK_SIZE (AO_STACK_END - AO_STACK_START + 1)
#define ao_arch_reboot() do { \
WDCTL = WDCTL_EN | WDCTL_MODE_WATCHDOG | WDCTL_INT_64; \
ao_delay(AO_SEC_TO_TICKS(2)); \
} while (0)
#define ao_arch_nop() _asm nop _endasm
#define ao_arch_interrupt(n) __interrupt n
#define ao_arch_naked_declare __naked
#define ao_arch_naked_define __naked
/* CC1111-specific drivers */
/*
* ao_romconfig.c
*/
#define AO_ROMCONFIG_VERSION 2
extern __code __at (0x00a0) uint16_t ao_romconfig_version;
extern __code __at (0x00a2) uint16_t ao_romconfig_check;
extern __code __at (0x00a4) uint16_t ao_serial_number;
extern __code __at (0x00a6) uint32_t ao_radio_cal;
#ifndef HAS_USB
#error Please define HAS_USB
#endif
#if HAS_USB
extern __code __at (0x00aa) uint8_t ao_usb_descriptors [];
#endif
/* Initialize stack */
#define ao_arch_init_stack(task, start) { \
uint8_t __xdata *stack = task->stack; \
uint8_t t; \
*stack++ = ((uint16_t) start); /* 0 */ \
*stack++ = ((uint16_t) start) >> 8; /* 1 */ \
\
/* and the stuff saved by ao_switch */ \
*stack++ = 0; /* 2 acc */ \
*stack++ = 0x80; /* 3 IE */ \
\
/* 4 DPL \
* 5 DPH \
* 6 B \
* 7 R2 \
* 8 R3 \
* 9 R4 \
* 10 R5 \
* 11 R6 \
* 12 R7 \
* 13 R0 \
* 14 R1 \
* 15 PSW \
* 16 BP \
*/ \
for (t = 0; t < 13; t++) \
*stack++ = 0; \
task->stack_count = 17; \
}
/* Save current context */
#define ao_arch_save_context() \
_asm \
/* 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 \
push ar2 \
push ar3 \
push ar4 \
push ar5 \
push ar6 \
push ar7 \
push ar0 \
push ar1 \
push PSW \
_endasm; \
PSW = 0; \
_asm \
push _bp \
_endasm
#endif /* _AO_ARCH_H_ */
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