esp-idf/components/esp32/test/test_dport_xt_highint5.S

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#include <xtensa/coreasm.h>
#include <xtensa/corebits.h>
#include <xtensa/config/system.h>
#include "freertos/xtensa_context.h"
#include "sdkconfig.h"
#include "soc/soc.h"
#include "soc/dport_reg.h"
#ifndef CONFIG_FREERTOS_UNICORE
#define L5_INTR_STACK_SIZE 12
#define L5_INTR_A2_OFFSET 0
#define L5_INTR_A3_OFFSET 4
#define L5_INTR_A4_OFFSET 8
.data
_l5_intr_stack:
.space L5_INTR_STACK_SIZE
.section .iram1,"ax"
.global xt_highint5
.type xt_highint5,@function
.align 4
xt_highint5:
movi a0, xt_highint5_read_apb
l32i a0, a0, 0
bnez a0, .read_apb_reg
// Short interrupt
esync
rsr a0, CCOUNT
addi a0, a0, 27
wsr a0, CCOMPARE2
esync
rsr a0, EXCSAVE_5 // restore a0
rfi 5
// read APB reg 10 time.
.read_apb_reg:
movi a0, _l5_intr_stack
s32i a2, a0, L5_INTR_A2_OFFSET
s32i a3, a0, L5_INTR_A3_OFFSET
s32i a4, a0, L5_INTR_A4_OFFSET
movi a4, 10 // count of reading
movi a0, 0x3ff40078 // read APB reg
l32i a2, a0, 0
.loop_read_apb_reg:
l32i a3, a0, 0
bne a3, a2, .need_set_apb_test_result
addi a4, a4, -1
l32i a2, a0, 0
bnez a4, .loop_read_apb_reg
j 1f
.need_set_apb_test_result:
movi a0, apb_intr_test_result // set fail
movi a2, 0
s32i a2, a0, 0
memw
1:
movi a0, _l5_intr_stack
l32i a2, a0, L5_INTR_A2_OFFSET
l32i a3, a0, L5_INTR_A3_OFFSET
l32i a4, a0, L5_INTR_A4_OFFSET
rsync
.L_xt_highint5_exit:
rsr a0, EXCSAVE_5 // restore a0
rfi 5
/* The linker has no reason to link in this file; all symbols it exports are already defined
(weakly!) in the default int handler. Define a symbol here so we can use it to have the
linker inspect this anyway. */
.global ld_include_test_dport_xt_highint5
ld_include_test_dport_xt_highint5:
#endif // CONFIG_FREERTOS_UNICORE