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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))
/* Code and xdata use the same address space */
#define CODE_TO_XDATA(a) ((__xdata void *) ((uint16_t) (a)))
/* Pdata lives at the start of xdata */
#define PDATA_TO_XDATA(a) ((void __xdata *) ((uint8_t) (a) | 0xf000))
/* 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
#define AO_ROMCONFIG_SYMBOL(a) __code __at(a)
extern AO_ROMCONFIG_SYMBOL(0x00a0) uint16_t ao_romconfig_version;
extern AO_ROMCONFIG_SYMBOL(0x00a2) uint16_t ao_romconfig_check;
extern AO_ROMCONFIG_SYMBOL(0x00a4) uint16_t ao_serial_number;
extern AO_ROMCONFIG_SYMBOL(0x00a6) uint32_t ao_radio_cal;
#ifndef HAS_USB
#error Please define HAS_USB
#endif
#define ao_arch_task_members\
uint8_t stack_count; /* amount of saved stack */
/* 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_regs() \
__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
#define ao_arch_save_stack() { \
uint8_t stack_len; \
__data uint8_t *stack_ptr; \
__xdata uint8_t *save_ptr; \
/* Save the current stack */ \
stack_len = SP - (AO_STACK_START - 1); \
ao_cur_task->stack_count = stack_len; \
stack_ptr = (uint8_t __data *) AO_STACK_START; \
save_ptr = (uint8_t __xdata *) ao_cur_task->stack; \
do \
*save_ptr++ = *stack_ptr++; \
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)
#define ao_arch_cpu_idle() (PCON = PCON_IDLE)
#define ao_arch_restore_stack() { \
uint8_t stack_len; \
__data uint8_t *stack_ptr; \
__xdata uint8_t *save_ptr; \
\
/* Restore the old stack */ \
stack_len = ao_cur_task->stack_count; \
SP = AO_STACK_START - 1 + stack_len; \
\
stack_ptr = (uint8_t __data *) AO_STACK_START; \
save_ptr = (uint8_t __xdata *) ao_cur_task->stack; \
do \
*stack_ptr++ = *save_ptr++; \
while (--stack_len); \
\
__asm \
pop _bp \
pop PSW \
pop ar1 \
pop ar0 \
pop ar7 \
pop ar6 \
pop ar5 \
pop ar4 \
pop ar3 \
pop ar2 \
pop b \
pop DPH \
pop DPL \
/* The next byte of the stack is the IE register. Only the global \
enable bit forms part of the task context. Pop off the IE then set \
the global enable bit to match that of the stored IE register. */ \
pop ACC \
JB ACC.7,0098$ \
CLR _EA \
LJMP 0099$ \
0098$: \
SETB _EA \
0099$: \
/* Finally pop off the ACC, which was the first register saved. */ \
pop ACC \
ret \
__endasm; \
}
#define ao_arch_critical(b) __critical { b }
#define AO_DATA_RING 32
/* ao_button.c */
#ifdef HAS_BUTTON
void
ao_p0_isr(void) ao_arch_interrupt(13);
void
ao_p1_isr(void) ao_arch_interrupt(15);
void
ao_p2_isr(void);
#define HAS_P2_ISR 1
#endif
void
ao_button_init(void);
char
ao_button_get(void) __critical;
void
ao_button_clear(void) __critical;
/* ao_string.c */
void
_ao_xmemcpy(__xdata void *dst, __xdata void *src, uint8_t count);
#define ao_xmemcpy(d,s,c) _ao_xmemcpy(d,s,c)
void
_ao_xmemset(__xdata void *dst, uint8_t value, uint8_t count);
#define ao_xmemset(d,v,c) _ao_xmemset(d,v,c)
int8_t
_ao_xmemcmp(__xdata void *a, __xdata void *b, uint8_t count);
#define ao_xmemcmp(d,s,c) _ao_xmemcmp((d), (s), (c))
struct ao_serial_speed {
uint8_t baud;
uint8_t gcr;
};
extern const __code struct ao_serial_speed ao_serial_speeds[];
/*
* ao_dma.c
*/
/* Allocate a DMA channel. the 'done' parameter will be set when the
* dma is finished and will be used to wakeup any waiters
*/
uint8_t
ao_dma_alloc(__xdata uint8_t * done);
/* Setup a DMA channel */
void
ao_dma_set_transfer(uint8_t id,
void __xdata *srcaddr,
void __xdata *dstaddr,
uint16_t count,
uint8_t cfg0,
uint8_t cfg1);
/* Start a DMA channel */
void
ao_dma_start(uint8_t id);
/* Manually trigger a DMA channel */
void
ao_dma_trigger(uint8_t id);
/* Abort a running DMA transfer */
void
ao_dma_abort(uint8_t id);
/* DMA interrupt routine */
void
ao_dma_isr(void) ao_arch_interrupt(8);
/* ao_adc.c */
#if HAS_ADC
/* The A/D interrupt handler */
void
ao_adc_isr(void) ao_arch_interrupt(1);
#endif
#if HAS_USB
/* USB interrupt handler */
void
ao_usb_isr(void) ao_arch_interrupt(6);
#endif
#if HAS_SERIAL_0
void
ao_serial0_rx_isr(void) ao_arch_interrupt(2);
void
ao_serial0_tx_isr(void) ao_arch_interrupt(7);
#endif
#if HAS_SERIAL_1
void
ao_serial1_rx_isr(void) ao_arch_interrupt(3);
void
ao_serial1_tx_isr(void) ao_arch_interrupt(14);
#endif
#endif /* _AO_ARCH_H_ */
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