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DSView/libsigrok4DSL/trigger.c
dreamsourcelabTAI b63cc00d9e the step 1 of code refactoring
2022-07-14 13:50:40 +08:00

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/*
* This file is part of the libsigrok project.
*
* Copyright (C) 2013 DreamSourceLab <support@dreamsourcelab.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; 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
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "libsigrok-internal.h"
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <assert.h>
#include <glib.h>
#include "log.h"
#undef LOG_PREFIX
#define LOG_PREFIX "trigger: "
/**
* @file
*
* init, set DSLogic trigger.
*/
/**
* @defgroup Trigger handling
*
* init, set DSLogic trigger
*
* @{
*/
struct ds_trigger *trigger = NULL;
/**
* recovery trigger to initial status.
*
* @return SR_OK upon success.
*/
SR_API int ds_trigger_init(void)
{
int i, j;
if (!trigger) {
if (!(trigger = g_try_malloc0(sizeof(struct ds_trigger)))) {
sr_err("Trigger malloc failed.");
return SR_ERR_MALLOC;
}
}
trigger->trigger_en = 0;
trigger->trigger_mode = SIMPLE_TRIGGER;
trigger->trigger_pos = 0;
trigger->trigger_stages = 0;
for (i = 0; i <= TriggerStages; i++) {
for (j = 0; j < MaxTriggerProbes; j++) {
trigger->trigger0[i][j] = 'X';
trigger->trigger1[i][j] = 'X';
}
trigger->trigger0_count[i] = 0;
trigger->trigger1_count[i] = 0;
trigger->trigger0_inv[i] = 0;
trigger->trigger1_inv[i] = 0;
trigger->trigger_logic[i] = 1;
}
return SR_OK;
}
SR_API int ds_trigger_destroy(void)
{
if (trigger)
g_free(trigger);
trigger = NULL;
return SR_OK;
}
/**
*
*
*/
SR_API struct ds_trigger *ds_trigger_get(void)
{
return trigger;
}
/**
* set trigger based on stage
*
* @return SR_OK upon success.
*/
SR_API int ds_trigger_stage_set_value(uint16_t stage, uint16_t probes, char *trigger0, char *trigger1)
{
assert(stage < TriggerStages);
assert(probes <= MaxTriggerProbes);
int j;
for (j = 0; j< probes; j++) {
trigger->trigger0[stage][probes - j - 1] = *(trigger0 + j * 2);
trigger->trigger1[stage][probes - j - 1] = *(trigger1 + j * 2);
}
return SR_OK;
}
SR_API int ds_trigger_stage_set_logic(uint16_t stage, uint16_t probes, unsigned char trigger_logic)
{
assert(stage < TriggerStages);
assert(probes <= MaxTriggerProbes);
trigger->trigger_logic[stage] = trigger_logic;
return SR_OK;
}
SR_API int ds_trigger_stage_set_inv(uint16_t stage, uint16_t probes, unsigned char trigger0_inv, unsigned char trigger1_inv)
{
assert(stage < TriggerStages);
assert(probes <= MaxTriggerProbes);
trigger->trigger0_inv[stage] = trigger0_inv;
trigger->trigger1_inv[stage] = trigger1_inv;
return SR_OK;
}
SR_API int ds_trigger_stage_set_count(uint16_t stage, uint16_t probes, uint32_t trigger0_count, uint32_t trigger1_count)
{
assert(stage < TriggerStages);
assert(probes <= MaxTriggerProbes);
trigger->trigger0_count[stage] = trigger0_count;
trigger->trigger1_count[stage] = trigger1_count;
return SR_OK;
}
/**
* set trigger based on probe
*
* @return SR_OK upon success.
*/
SR_API int ds_trigger_probe_set(uint16_t probe, unsigned char trigger0, unsigned char trigger1)
{
assert(probe < MaxTriggerProbes);
trigger->trigger0[TriggerStages][probe] = trigger0;
trigger->trigger1[TriggerStages][probe] = trigger1;
return SR_OK;
}
/**
* set trigger stage
*
* @return SR_OK upon success.
*/
SR_API int ds_trigger_set_stage(uint16_t stages)
{
assert(stages <= TriggerStages);
trigger->trigger_stages = stages;
return SR_OK;
}
/**
* set trigger position
*
* @return SR_OK upon success.
*/
SR_API int ds_trigger_set_pos(uint16_t position)
{
assert(position <= 100);
trigger->trigger_pos = position;
return SR_OK;
}
/**
* get trigger position
*
* @return uint16_t trigger_pos.
*/
SR_API uint16_t ds_trigger_get_pos()
{
return trigger->trigger_pos;
}
/**
* set trigger en
*
* @return SR_OK upon success.
*/
SR_API int ds_trigger_set_en(uint16_t enable)
{
trigger->trigger_en = enable;
return SR_OK;
}
/**
* get trigger en
*
* @return SR_OK upon success.
*/
SR_API uint16_t ds_trigger_get_en()
{
if (trigger == NULL)
return 0;
else
return trigger->trigger_en;
}
/**
* set trigger mode
*
* @return SR_OK upon success.
*/
SR_API int ds_trigger_set_mode(uint16_t mode)
{
trigger->trigger_mode = mode;
return SR_OK;
}
/*
*
*/
SR_PRIV uint16_t ds_trigger_get_mask0(uint16_t stage, uint16_t msc, uint16_t lsc, gboolean qutr_mode, gboolean half_mode)
{
assert(stage <= TriggerStages);
assert(lsc <= msc);
assert(msc < MaxTriggerProbes);
uint16_t mask = 0;
const uint16_t qutr_mask = (0xffff >> (TriggerProbes - TriggerProbes/4));
const uint16_t half_mask = (0xffff >> (TriggerProbes - TriggerProbes/2));
int i;
for (i = msc; i >= lsc ; i--) {
mask = (mask << 1);
mask += ((trigger->trigger0[stage][i] == 'X') | (trigger->trigger0[stage][i] == 'C'));
}
if (qutr_mode)
mask = ((mask & qutr_mask) << (TriggerProbes/4*3)) +
((mask & qutr_mask) << (TriggerProbes/4*2)) +
((mask & qutr_mask) << (TriggerProbes/4*1)) +
((mask & qutr_mask) << (TriggerProbes/4*0));
else if (half_mode)
mask = ((mask & half_mask) << (TriggerProbes/2*1)) +
((mask & half_mask) << (TriggerProbes/2*0));
return mask;
}
SR_PRIV uint16_t ds_trigger_get_mask1(uint16_t stage, uint16_t msc, uint16_t lsc, gboolean qutr_mode, gboolean half_mode)
{
assert(stage <= TriggerStages);
assert(lsc <= msc);
assert(msc < MaxTriggerProbes);
uint16_t mask = 0;
const uint16_t qutr_mask = (0xffff >> (TriggerProbes - TriggerProbes/4));
const uint16_t half_mask = (0xffff >> (TriggerProbes - TriggerProbes/2));
int i;
for (i = msc; i >= lsc ; i--) {
mask = (mask << 1);
mask += ((trigger->trigger1[stage][i] == 'X') | (trigger->trigger1[stage][i] == 'C'));
}
if (qutr_mode)
mask = ((mask & qutr_mask) << (TriggerProbes/4*3)) +
((mask & qutr_mask) << (TriggerProbes/4*2)) +
((mask & qutr_mask) << (TriggerProbes/4*1)) +
((mask & qutr_mask) << (TriggerProbes/4*0));
else if (half_mode)
mask = ((mask & half_mask) << (TriggerProbes/2*1)) +
((mask & half_mask) << (TriggerProbes/2*0));
return mask;
}
SR_PRIV uint16_t ds_trigger_get_value0(uint16_t stage, uint16_t msc, uint16_t lsc, gboolean qutr_mode, gboolean half_mode)
{
assert(stage <= TriggerStages);
assert(lsc <= msc);
assert(msc < MaxTriggerProbes);
uint16_t value = 0;
const uint16_t qutr_mask = (0xffff >> (TriggerProbes - TriggerProbes/4));
const uint16_t half_mask = (0xffff >> (TriggerProbes - TriggerProbes/2));
int i;
for (i = msc; i >= lsc ; i--) {
value = (value << 1);
value += ((trigger->trigger0[stage][i] == '1') | (trigger->trigger0[stage][i] == 'R'));
}
if (qutr_mode)
value = ((value & qutr_mask) << (TriggerProbes/4*3)) +
((value & qutr_mask) << (TriggerProbes/4*2)) +
((value & qutr_mask) << (TriggerProbes/4*1)) +
((value & qutr_mask) << (TriggerProbes/4*0));
else if (half_mode)
value = ((value & half_mask) << (TriggerProbes/2*1)) +
((value & half_mask) << (TriggerProbes/2*0));
return value;
}
SR_PRIV uint16_t ds_trigger_get_value1(uint16_t stage, uint16_t msc, uint16_t lsc, gboolean qutr_mode, gboolean half_mode)
{
assert(stage <= TriggerStages);
assert(lsc <= msc);
assert(msc < MaxTriggerProbes);
uint16_t value = 0;
const uint16_t qutr_mask = (0xffff >> (TriggerProbes - TriggerProbes/4));
const uint16_t half_mask = (0xffff >> (TriggerProbes - TriggerProbes/2));
int i;
for (i = msc; i >= lsc ; i--) {
value = (value << 1);
value += ((trigger->trigger1[stage][i] == '1') | (trigger->trigger1[stage][i] == 'R'));
}
if (qutr_mode)
value = ((value & qutr_mask) << (TriggerProbes/4*3)) +
((value & qutr_mask) << (TriggerProbes/4*2)) +
((value & qutr_mask) << (TriggerProbes/4*1)) +
((value & qutr_mask) << (TriggerProbes/4*0));
else if (half_mode)
value = ((value & half_mask) << (TriggerProbes/2*1)) +
((value & half_mask) << (TriggerProbes/2*0));
return value;
}
SR_PRIV uint16_t ds_trigger_get_edge0(uint16_t stage, uint16_t msc, uint16_t lsc, gboolean qutr_mode, gboolean half_mode)
{
assert(stage <= TriggerStages);
assert(lsc <= msc);
assert(msc < MaxTriggerProbes);
uint16_t edge = 0;
const uint16_t qutr_mask = (0xffff >> (TriggerProbes - TriggerProbes/4));
const uint16_t half_mask = (0xffff >> (TriggerProbes - TriggerProbes/2));
int i;
for (i = msc; i >= lsc ; i--) {
edge = (edge << 1);
edge += ((trigger->trigger0[stage][i] == 'R') | (trigger->trigger0[stage][i] == 'F') |
(trigger->trigger0[stage][i] == 'C'));
}
if (qutr_mode)
edge = ((edge & qutr_mask) << (TriggerProbes/4*3)) +
((edge & qutr_mask) << (TriggerProbes/4*2)) +
((edge & qutr_mask) << (TriggerProbes/4*1)) +
((edge & qutr_mask) << (TriggerProbes/4*0));
else if (half_mode)
edge = ((edge & half_mask) << (TriggerProbes/2*1)) +
((edge & half_mask) << (TriggerProbes/2*0));
return edge;
}
SR_PRIV uint16_t ds_trigger_get_edge1(uint16_t stage, uint16_t msc, uint16_t lsc, gboolean qutr_mode, gboolean half_mode)
{
assert(stage <= TriggerStages);
assert(lsc <= msc);
assert(msc < MaxTriggerProbes);
uint16_t edge = 0;
const uint16_t qutr_mask = (0xffff >> (TriggerProbes - TriggerProbes/4));
const uint16_t half_mask = (0xffff >> (TriggerProbes - TriggerProbes/2));
int i;
for (i = msc; i >= lsc ; i--) {
edge = (edge << 1);
edge += ((trigger->trigger1[stage][i] == 'R') | (trigger->trigger1[stage][i] == 'F') |
(trigger->trigger1[stage][i] == 'C'));
}
if (qutr_mode)
edge = ((edge & qutr_mask) << (TriggerProbes/4*3)) +
((edge & qutr_mask) << (TriggerProbes/4*2)) +
((edge & qutr_mask) << (TriggerProbes/4*1)) +
((edge & qutr_mask) << (TriggerProbes/4*0));
else if (half_mode)
edge = ((edge & half_mask) << (TriggerProbes/2*1)) +
((edge & half_mask) << (TriggerProbes/2*0));
return edge;
}
/** @} */
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