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Rename opensdk dir to open_esplibs

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Alex Stewart 2016-03-22 16:26:53 -07:00 • committed by Angus Gratton
parent 2ecbf1d584
commit eee4a3660c
8 changed files with 1 additions and 1 deletions
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121
open_esplibs/libmain/os_cpu_a.c Normal file
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#include "esp/types.h"
#include "FreeRTOS.h"
#include "task.h"
#include "xtensa_ops.h"
#include "common_macros.h"
// xPortSysTickHandle is defined in FreeRTOS/Source/portable/esp8266/port.c but
// does not exist in any header files.
void xPortSysTickHandle(void);
/* The following "functions" manipulate the stack at a low level and thus cannot be coded directly in C */
void IRAM vPortYield(void) {
asm(" wsr a0, excsave1 \n\
addi sp, sp, -80 \n\
s32i a0, sp, 4 \n\
addi a0, sp, 80 \n\
s32i a0, sp, 16 \n\
rsr a0, ps \n\
s32i a0, sp, 8 \n\
rsr a0, excsave1 \n\
s32i a0, sp, 12 \n\
movi a0, _xt_user_exit \n\
s32i a0, sp, 0 \n\
call0 sdk__xt_int_enter \n\
call0 vPortEnterCritical \n\
call0 vTaskSwitchContext \n\
call0 vPortExitCritical \n\
call0 sdk__xt_int_exit \n\
");
}
void IRAM sdk__xt_int_enter(void) {
asm(" s32i a12, sp, 60 \n\
s32i a13, sp, 64 \n\
mov a12, a0 \n\
call0 sdk__xt_context_save \n\
movi a0, pxCurrentTCB \n\
l32i a0, a0, 0 \n\
s32i sp, a0, 0 \n\
mov a0, a12 \n\
");
}
void IRAM sdk__xt_int_exit(void) {
asm(" s32i a14, sp, 68 \n\
s32i a15, sp, 72 \n\
movi sp, pxCurrentTCB \n\
l32i sp, sp, 0 \n\
l32i sp, sp, 0 \n\
movi a14, pxCurrentTCB \n\
l32i a14, a14, 0 \n\
addi a15, sp, 80 \n\
s32i a15, a14, 0 \n\
call0 sdk__xt_context_restore \n\
l32i a14, sp, 68 \n\
l32i a15, sp, 72 \n\
l32i a0, sp, 0 \n\
");
}
void IRAM sdk__xt_timer_int(void) {
uint32_t trigger_ccount;
uint32_t current_ccount;
uint32_t ccount_interval = portTICK_RATE_MS * 80000; //FIXME
do {
RSR(trigger_ccount, ccompare0);
WSR(trigger_ccount + ccount_interval, ccompare0);
ESYNC();
xPortSysTickHandle();
ESYNC();
RSR(current_ccount, ccount);
} while (current_ccount - trigger_ccount > ccount_interval);
}
void IRAM sdk__xt_timer_int1(void) {
vTaskSwitchContext();
}
#define INTENABLE_CCOMPARE BIT(6)
void IRAM sdk__xt_tick_timer_init(void) {
uint32_t ints_enabled;
uint32_t current_ccount;
uint32_t ccount_interval = portTICK_RATE_MS * 80000; //FIXME
RSR(current_ccount, ccount);
WSR(current_ccount + ccount_interval, ccompare0);
ints_enabled = 0;
XSR(ints_enabled, intenable);
WSR(ints_enabled | INTENABLE_CCOMPARE, intenable);
}
void IRAM sdk__xt_isr_unmask(uint32_t mask) {
uint32_t ints_enabled;
ints_enabled = 0;
XSR(ints_enabled, intenable);
WSR(ints_enabled | mask, intenable);
}
void IRAM sdk__xt_isr_mask(uint32_t mask) {
uint32_t ints_enabled;
ints_enabled = 0;
XSR(ints_enabled, intenable);
WSR(ints_enabled & mask, intenable);
}
uint32_t IRAM sdk__xt_read_ints(void) {
uint32_t ints_enabled;
RSR(ints_enabled, intenable);
return ints_enabled;
}
void IRAM sdk__xt_clear_ints(uint32_t mask) {
WSR(mask, intclear);
}