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DSView/libsigrok4DSL/hardware/DSL/dscope.c
DreamSourceLab 45abe48a91 Fix issue #87: Hangs at 100% on Arch Linux
2017-06-01 13:31:35 +08:00

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/*
* This file is part of the libsigrok project.
*
* Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
* Copyright (C) 2013 DreamSourceLab <dreamsourcelab@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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <errno.h>
#include <assert.h>
#include <sys/stat.h>
#include <inttypes.h>
//#include <libusb.h>
#include "dsl.h"
#include "command.h"
#undef min
#define min(a,b) ((a)<(b)?(a):(b))
static const int single_buffer_time = 20;
static const int total_buffer_time = 200;
static const int buffer_size = 1024 * 1024;
static const int instant_buffer_size = 1024 * 1024;
static const int cons_buffer_size = 128;
static struct sr_dev_mode mode_list[] = {
{"OSC", DSO},
};
static const char *opmodes[] = {
"Normal",
"Internal Test",
"External Test",
"DRAM Loopback Test",
};
static const char *thresholds[] = {
"1.8/2.5/3.3V Level",
"5.0V Level",
};
static const char *filters[] = {
"None",
"1 Sample Clock",
};
static const int32_t hwopts[] = {
SR_CONF_CONN,
};
static const int32_t hwcaps[] = {
SR_CONF_LOGIC_ANALYZER,
SR_CONF_TRIGGER_TYPE,
SR_CONF_SAMPLERATE,
/* These are really implemented in the driver, not the hardware. */
SR_CONF_LIMIT_SAMPLES,
SR_CONF_CONTINUOUS,
};
static const int32_t hwoptions[] = {
SR_CONF_OPERATION_MODE,
};
static const int32_t sessions[] = {
SR_CONF_SAMPLERATE,
SR_CONF_LIMIT_SAMPLES,
SR_CONF_OPERATION_MODE,
SR_CONF_TIMEBASE,
SR_CONF_TRIGGER_SLOPE,
SR_CONF_TRIGGER_SOURCE,
SR_CONF_TRIGGER_CHANNEL,
SR_CONF_HORIZ_TRIGGERPOS,
SR_CONF_TRIGGER_HOLDOFF,
SR_CONF_TRIGGER_MARGIN,
};
static const char *probe_names[] = {
"0", "1", "2", "3", "4", "5", "6", "7",
"8", "9", "10", "11", "12", "13", "14", "15",
NULL,
};
static uint16_t test_sample_value;
static uint16_t test_init = 1;
static const uint64_t samplerates[] = {
SR_KHZ(10),
SR_KHZ(20),
SR_KHZ(50),
SR_KHZ(100),
SR_KHZ(200),
SR_KHZ(500),
SR_MHZ(1),
SR_MHZ(2),
SR_MHZ(5),
SR_MHZ(10),
SR_MHZ(20),
SR_MHZ(25),
SR_MHZ(50),
SR_MHZ(100),
SR_MHZ(200),
};
static const uint64_t samplecounts[] = {
SR_KB(1),
SR_KB(2),
SR_KB(4),
SR_KB(8),
SR_KB(16),
SR_KB(32),
SR_KB(64),
SR_KB(128),
SR_KB(256),
SR_KB(512),
SR_MB(1),
SR_MB(2),
SR_MB(4),
SR_MB(8),
SR_MB(16),
SR_MB(32),
};
static uint16_t opmodes_show_count = 2;
static const uint8_t zero_base_addr = 0x40;
SR_PRIV struct sr_dev_driver DSCope_driver_info;
static struct sr_dev_driver *di = &DSCope_driver_info;
extern struct ds_trigger *trigger;
gboolean mstatus_valid = FALSE;
struct sr_status mstatus;
static const uint64_t DSCOPE_DEFAULT_VGAIN[] = {
DSCOPE_DEFAULT_VGAIN0,
DSCOPE_DEFAULT_VGAIN1,
DSCOPE_DEFAULT_VGAIN2,
DSCOPE_DEFAULT_VGAIN3,
DSCOPE_DEFAULT_VGAIN4,
DSCOPE_DEFAULT_VGAIN5,
DSCOPE_DEFAULT_VGAIN6,
DSCOPE_DEFAULT_VGAIN7,
};
static const uint64_t DSCOPE20_DEFAULT_VGAIN[] = {
DSCOPE20_DEFAULT_VGAIN0,
DSCOPE20_DEFAULT_VGAIN1,
DSCOPE20_DEFAULT_VGAIN2,
DSCOPE20_DEFAULT_VGAIN3,
DSCOPE20_DEFAULT_VGAIN4,
DSCOPE20_DEFAULT_VGAIN5,
DSCOPE20_DEFAULT_VGAIN6,
DSCOPE20_DEFAULT_VGAIN7,
};
struct DSL_vga DSCope_vga[] = {
{10, DSCOPE_DEFAULT_VGAIN0, DSCOPE_DEFAULT_VGAIN0, DSCOPE_DEFAULT_VOFF, DSCOPE_DEFAULT_VOFF},
{20, DSCOPE_DEFAULT_VGAIN1, DSCOPE_DEFAULT_VGAIN1, DSCOPE_DEFAULT_VOFF, DSCOPE_DEFAULT_VOFF},
{50, DSCOPE_DEFAULT_VGAIN2, DSCOPE_DEFAULT_VGAIN2, DSCOPE_DEFAULT_VOFF, DSCOPE_DEFAULT_VOFF},
{100, DSCOPE_DEFAULT_VGAIN3, DSCOPE_DEFAULT_VGAIN3, DSCOPE_DEFAULT_VOFF, DSCOPE_DEFAULT_VOFF},
{200, DSCOPE_DEFAULT_VGAIN4, DSCOPE_DEFAULT_VGAIN4, DSCOPE_DEFAULT_VOFF, DSCOPE_DEFAULT_VOFF},
{500, DSCOPE_DEFAULT_VGAIN5, DSCOPE_DEFAULT_VGAIN5, DSCOPE_DEFAULT_VOFF, DSCOPE_DEFAULT_VOFF},
{1000,DSCOPE_DEFAULT_VGAIN6, DSCOPE_DEFAULT_VGAIN6, DSCOPE_DEFAULT_VOFF, DSCOPE_DEFAULT_VOFF},
{2000,DSCOPE_DEFAULT_VGAIN7, DSCOPE_DEFAULT_VGAIN7, DSCOPE_DEFAULT_VOFF, DSCOPE_DEFAULT_VOFF},
{0, 0, 0, 0, 0},
};
struct DSL_vga DSCope20_vga[] = {
{10, DSCOPE20_DEFAULT_VGAIN0, DSCOPE20_DEFAULT_VGAIN0, DSCOPE20_DEFAULT_VOFF, CALI_VOFF_RANGE-DSCOPE20_DEFAULT_VOFF},
{20, DSCOPE20_DEFAULT_VGAIN1, DSCOPE20_DEFAULT_VGAIN1, DSCOPE20_DEFAULT_VOFF, CALI_VOFF_RANGE-DSCOPE20_DEFAULT_VOFF},
{50, DSCOPE20_DEFAULT_VGAIN2, DSCOPE20_DEFAULT_VGAIN2, DSCOPE20_DEFAULT_VOFF, CALI_VOFF_RANGE-DSCOPE20_DEFAULT_VOFF},
{100, DSCOPE20_DEFAULT_VGAIN3, DSCOPE20_DEFAULT_VGAIN3, DSCOPE20_DEFAULT_VOFF, CALI_VOFF_RANGE-DSCOPE20_DEFAULT_VOFF},
{200, DSCOPE20_DEFAULT_VGAIN4, DSCOPE20_DEFAULT_VGAIN4, DSCOPE20_DEFAULT_VOFF, CALI_VOFF_RANGE-DSCOPE20_DEFAULT_VOFF},
{500, DSCOPE20_DEFAULT_VGAIN5, DSCOPE20_DEFAULT_VGAIN5, DSCOPE20_DEFAULT_VOFF, CALI_VOFF_RANGE-DSCOPE20_DEFAULT_VOFF},
{1000,DSCOPE20_DEFAULT_VGAIN6, DSCOPE20_DEFAULT_VGAIN6, DSCOPE20_DEFAULT_VOFF, CALI_VOFF_RANGE-DSCOPE20_DEFAULT_VOFF},
{2000,DSCOPE20_DEFAULT_VGAIN7, DSCOPE20_DEFAULT_VGAIN7, DSCOPE20_DEFAULT_VOFF, CALI_VOFF_RANGE-DSCOPE20_DEFAULT_VOFF},
{0, 0, 0, 0, 0},
};
/**
* Check the USB configuration to determine if this is an DSCope device.
*
* @return TRUE if the device's configuration profile match DSCope
* configuration, FALSE otherwise.
*/
static gboolean check_conf_profile(libusb_device *dev)
{
struct libusb_device_descriptor des;
struct libusb_device_handle *hdl;
gboolean ret;
unsigned char strdesc[64];
hdl = NULL;
ret = FALSE;
while (!ret) {
/* Assume the FW has not been loaded, unless proven wrong. */
if (libusb_get_device_descriptor(dev, &des) != 0)
break;
if (libusb_open(dev, &hdl) != 0)
break;
if (libusb_get_string_descriptor_ascii(hdl,
des.iManufacturer, strdesc, sizeof(strdesc)) < 0)
break;
if (strncmp((const char *)strdesc, "DreamSourceLab", 14))
break;
if (libusb_get_string_descriptor_ascii(hdl,
des.iProduct, strdesc, sizeof(strdesc)) < 0)
break;
if (strncmp((const char *)strdesc, "USB-based Instrument", 20))
break;
/* If we made it here, it must be an DSCope. */
ret = TRUE;
}
if (hdl)
libusb_close(hdl);
return ret;
}
static int en_ch_num(const struct sr_dev_inst *sdi)
{
GSList *l;
int channel_en_cnt = 0;
for (l = sdi->channels; l; l = l->next) {
struct sr_channel *probe = (struct sr_channel *)l->data;
channel_en_cnt += probe->enabled;
}
channel_en_cnt += (channel_en_cnt == 0);
return channel_en_cnt;
}
static int fpga_setting(const struct sr_dev_inst *sdi)
{
struct DSL_context *devc;
struct sr_usb_dev_inst *usb;
struct libusb_device_handle *hdl;
struct DSL_setting setting;
int ret;
int transferred;
int result;
int i;
GSList *l;
uint32_t tmp_u32;
uint64_t tmp_u64;
devc = sdi->priv;
usb = sdi->conn;
hdl = usb->devhdl;
setting.sync = 0xf5a5f5a5;
setting.mode_header = 0x0001;
setting.divider_header = 0x0102;
setting.count_header = 0x0302;
setting.trig_pos_header = 0x0502;
setting.trig_glb_header = 0x0701;
setting.ch_en_header = 0x0801;
setting.trig_header = 0x40a0;
setting.end_sync = 0xfa5afa5a;
//setting.mode = (test_mode ? 0x8000 : 0x0000) + trigger->trigger_en + (sdi->mode << 4);
setting.mode = (trigger->trigger_en << TRIG_EN_BIT) +
(devc->clock_type << CLK_TYPE_BIT) +
(devc->clock_edge << CLK_EDGE_BIT) +
((sdi->mode == DSO) << DSO_MODE_BIT) +
((((devc->cur_samplerate == (2 * DSLOGIC_MAX_LOGIC_SAMPLERATE)) && sdi->mode != DSO) || (sdi->mode == ANALOG)) << HALF_MODE_BIT) +
((devc->cur_samplerate == (4 * DSLOGIC_MAX_LOGIC_SAMPLERATE)) << QUAR_MODE_BIT) +
((sdi->mode == ANALOG) << ANALOG_MODE_BIT) +
((devc->filter == SR_FILTER_1T) << FILTER_BIT) +
(devc->instant << INSTANT_BIT) +
((devc->op_mode == SR_OP_LOOPBACK_TEST) << LPB_TEST_BIT) +
((devc->op_mode == SR_OP_EXTERNAL_TEST) << EXT_TEST_BIT) +
((devc->op_mode == SR_OP_INTERNAL_TEST) << INT_TEST_BIT);
// sample rate divider
tmp_u32 = (sdi->mode == DSO) ? (uint32_t)ceil(DSLOGIC_MAX_DSO_SAMPLERATE * 1.0 / devc->cur_samplerate / en_ch_num(sdi)) :
(uint32_t)ceil(DSLOGIC_MAX_LOGIC_SAMPLERATE * 1.0 / devc->cur_samplerate);
setting.div_l = tmp_u32 & 0x0000ffff;
setting.div_h = tmp_u32 >> 16;
// capture counter
// analog: 16bits, but sample with half mode(0-7 valid only)
tmp_u64 = (sdi->mode == DSO) ? (devc->limit_samples / (g_slist_length(sdi->channels) / en_ch_num(sdi))) :
(sdi->mode == ANALOG) ? (devc->limit_samples * g_slist_length(sdi->channels) * 4) :
(devc->limit_samples);
tmp_u64 >>= 4; // hardware minimum unit 64
setting.cnt_l = tmp_u64 & 0x0000ffff;
setting.cnt_h = tmp_u64 >> 16;
// trigger position
tmp_u32 = (uint32_t)(trigger->trigger_pos / 100.0 * devc->limit_samples);
if (setting.mode & (1 << QUAR_MODE_BIT))
setting.tpos_l = tmp_u32 & 0x0000fffc;
else if (setting.mode & (1 << HALF_MODE_BIT))
setting.tpos_l = tmp_u32 & 0x0000fffe;
else
setting.tpos_l = tmp_u32 & 0x0000ffff;
setting.tpos_h = tmp_u32 >> 16;
// trigger global settings
setting.trig_glb = ((en_ch_num(sdi) & 0xf) << 4) +
trigger->trigger_stages;
// channel enable mapping
setting.ch_en = 0;
for (l = sdi->channels; l; l = l->next) {
struct sr_channel *probe = (struct sr_channel *)l->data;
setting.ch_en += probe->enabled << probe->index;
}
// trigger advanced configuration
if (trigger->trigger_mode == SIMPLE_TRIGGER) {
setting.trig_mask0[0] = ds_trigger_get_mask0(TriggerStages);
setting.trig_mask1[0] = ds_trigger_get_mask1(TriggerStages);
setting.trig_value0[0] = ds_trigger_get_value0(TriggerStages);
setting.trig_value1[0] = ds_trigger_get_value1(TriggerStages);
setting.trig_edge0[0] = ds_trigger_get_edge0(TriggerStages);
setting.trig_edge1[0] = ds_trigger_get_edge1(TriggerStages);
if (setting.mode & (1 << QUAR_MODE_BIT)) {
setting.trig_mask0[0] = ((setting.trig_mask0[0] & 0x0f) << 12) +
((setting.trig_mask0[0] & 0x0f) << 8) +
((setting.trig_mask0[0] & 0x0f) << 4) +
((setting.trig_mask0[0] & 0x0f) << 0);
setting.trig_mask1[0] = ((setting.trig_mask1[0] & 0x0f) << 12) +
((setting.trig_mask1[0] & 0x0f) << 8) +
((setting.trig_mask1[0] & 0x0f) << 4) +
((setting.trig_mask1[0] & 0x0f) << 0);
setting.trig_value0[0] = ((setting.trig_value0[0] & 0x0f) << 12) +
((setting.trig_value0[0] & 0x0f) << 8) +
((setting.trig_value0[0] & 0x0f) << 4) +
((setting.trig_value0[0] & 0x0f) << 0);
setting.trig_value1[0] = ((setting.trig_value1[0] & 0x0f) << 12) +
((setting.trig_value1[0] & 0x0f) << 8) +
((setting.trig_value1[0] & 0x0f) << 4) +
((setting.trig_value1[0] & 0x0f) << 0);
setting.trig_edge0[0] = ((setting.trig_edge0[0] & 0x0f) << 12) +
((setting.trig_edge0[0] & 0x0f) << 8) +
((setting.trig_edge0[0] & 0x0f) << 4) +
((setting.trig_edge0[0] & 0x0f) << 0);
setting.trig_edge1[0] = ((setting.trig_edge1[0] & 0x0f) << 12) +
((setting.trig_edge1[0] & 0x0f) << 8) +
((setting.trig_edge1[0] & 0x0f) << 4) +
((setting.trig_edge1[0] & 0x0f) << 0);
} else if (setting.mode & (1 << HALF_MODE_BIT)) {
setting.trig_mask0[0] = ((setting.trig_mask0[0] & 0xff) << 8) +
((setting.trig_mask0[0] & 0xff) << 0);
setting.trig_mask1[0] = ((setting.trig_mask1[0] & 0xff) << 8) +
((setting.trig_mask1[0] & 0xff) << 0);
setting.trig_value0[0] = ((setting.trig_value0[0] & 0xff) << 8) +
((setting.trig_value0[0] & 0xff) << 0);
setting.trig_value1[0] = ((setting.trig_value1[0] & 0xff) << 8) +
((setting.trig_value1[0] & 0xff) << 0);
setting.trig_edge0[0] = ((setting.trig_edge0[0] & 0xff) << 8) +
((setting.trig_edge0[0] & 0xff) << 0);
setting.trig_edge1[0] = ((setting.trig_edge1[0] & 0xff) << 8) +
((setting.trig_edge1[0] & 0xff) << 0);
}
setting.trig_logic0[0] = (trigger->trigger_logic[TriggerStages] << 1) + trigger->trigger0_inv[TriggerStages];
setting.trig_logic1[0] = (trigger->trigger_logic[TriggerStages] << 1) + trigger->trigger1_inv[TriggerStages];
setting.trig_count[0] = trigger->trigger0_count[TriggerStages];
for (i = 1; i < NUM_TRIGGER_STAGES; i++) {
setting.trig_mask0[i] = 0xffff;
setting.trig_mask1[i] = 0xffff;
setting.trig_value0[i] = 0;
setting.trig_value1[i] = 0;
setting.trig_edge0[i] = 0;
setting.trig_edge1[i] = 0;
setting.trig_logic0[i] = 2;
setting.trig_logic1[i] = 2;
setting.trig_count[i] = 0;
}
} else {
for (i = 0; i < NUM_TRIGGER_STAGES; i++) {
setting.trig_mask0[i] = ds_trigger_get_mask0(i);
setting.trig_mask1[i] = ds_trigger_get_mask1(i);
setting.trig_value0[i] = ds_trigger_get_value0(i);
setting.trig_value1[i] = ds_trigger_get_value1(i);
setting.trig_edge0[i] = ds_trigger_get_edge0(i);
setting.trig_edge1[i] = ds_trigger_get_edge1(i);
if (setting.mode & (1 << STRIG_MODE_BIT) && i == STriggerDataStage) {
// serial trigger, data mask/value should not be duplicated
} else {
if (setting.mode & (1 << QUAR_MODE_BIT)) {
setting.trig_mask0[i] = ((setting.trig_mask0[i] & 0x0f) << 12) +
((setting.trig_mask0[i] & 0x0f) << 8) +
((setting.trig_mask0[i] & 0x0f) << 4) +
((setting.trig_mask0[i] & 0x0f) << 0);
setting.trig_mask1[i] = ((setting.trig_mask1[i] & 0x0f) << 12) +
((setting.trig_mask1[i] & 0x0f) << 8) +
((setting.trig_mask1[i] & 0x0f) << 4) +
((setting.trig_mask1[i] & 0x0f) << 0);
setting.trig_value0[i] = ((setting.trig_value0[i] & 0x0f) << 12) +
((setting.trig_value0[i] & 0x0f) << 8) +
((setting.trig_value0[i] & 0x0f) << 4) +
((setting.trig_value0[i] & 0x0f) << 0);
setting.trig_value1[i] = ((setting.trig_value1[i] & 0x0f) << 12) +
((setting.trig_value1[i] & 0x0f) << 8) +
((setting.trig_value1[i] & 0x0f) << 4) +
((setting.trig_value1[i] & 0x0f) << 0);
setting.trig_edge0[i] = ((setting.trig_edge0[i] & 0x0f) << 12) +
((setting.trig_edge0[i] & 0x0f) << 8) +
((setting.trig_edge0[i] & 0x0f) << 4) +
((setting.trig_edge0[i] & 0x0f) << 0);
setting.trig_edge1[i] = ((setting.trig_edge1[i] & 0x0f) << 12) +
((setting.trig_edge1[i] & 0x0f) << 8) +
((setting.trig_edge1[i] & 0x0f) << 4) +
((setting.trig_edge1[i] & 0x0f) << 0);
} else if (setting.mode & (1 << HALF_MODE_BIT)) {
setting.trig_mask0[i] = ((setting.trig_mask0[i] & 0xff) << 8) +
((setting.trig_mask0[i] & 0xff) << 0);
setting.trig_mask1[i] = ((setting.trig_mask1[i] & 0xff) << 8) +
((setting.trig_mask1[i] & 0xff) << 0);
setting.trig_value0[i] = ((setting.trig_value0[i] & 0xff) << 8) +
((setting.trig_value0[i] & 0xff) << 0);
setting.trig_value1[i] = ((setting.trig_value1[i] & 0xff) << 8) +
((setting.trig_value1[i] & 0xff) << 0);
setting.trig_edge0[i] = ((setting.trig_edge0[i] & 0xff) << 8) +
((setting.trig_edge0[i] & 0xff) << 0);
setting.trig_edge1[i] = ((setting.trig_edge1[i] & 0xff) << 8) +
((setting.trig_edge1[i] & 0xff) << 0);
}
}
setting.trig_logic0[i] = (trigger->trigger_logic[i] << 1) + trigger->trigger0_inv[i];
setting.trig_logic1[i] = (trigger->trigger_logic[i] << 1) + trigger->trigger1_inv[i];
setting.trig_count[i] = trigger->trigger0_count[i];
}
}
result = SR_OK;
ret = libusb_bulk_transfer(hdl, 2 | LIBUSB_ENDPOINT_OUT,
(unsigned char*)&setting, sizeof(struct DSL_setting),
&transferred, 1000);
if (ret < 0) {
sr_err("Unable to setting FPGA of DSCope: %s.",
libusb_error_name(ret));
result = SR_ERR;
} else if (transferred != sizeof(struct DSL_setting)) {
sr_err("Setting FPGA error: expacted transfer size %d; actually %d",
sizeof(struct DSL_setting), transferred);
result = SR_ERR;
}
if (result == SR_OK)
sr_info("FPGA setting done");
return result;
}
static int fpga_config(struct libusb_device_handle *hdl, const char *filename)
{
FILE *fw;
int offset, chunksize, ret, result;
unsigned char *buf;
int transferred;
uint64_t filesize;
struct stat f_stat;
sr_info("Configure FPGA using %s", filename);
if ((fw = fopen(filename, "rb")) == NULL) {
sr_err("Unable to open FPGA bit file %s for reading: %s",
filename, strerror(errno));
return SR_ERR;
}
if (stat(filename, &f_stat) == -1)
return SR_ERR;
filesize = (uint64_t)f_stat.st_size;
if (!(buf = g_try_malloc(filesize))) {
sr_err("FPGA configure bit malloc failed.");
return SR_ERR;
}
result = SR_OK;
offset = 0;
while (1) {
chunksize = fread(buf, 1, filesize, fw);
if (chunksize == 0)
break;
//do {
ret = libusb_bulk_transfer(hdl, 2 | LIBUSB_ENDPOINT_OUT,
buf, chunksize,
&transferred, 1000);
//} while(ret == LIBUSB_ERROR_TIMEOUT);
if (ret < 0) {
sr_err("Unable to configure FPGA of DSCope: %s.",
libusb_error_name(ret));
result = SR_ERR;
break;
} else if (transferred != chunksize) {
sr_err("Configure FPGA error: expacted transfer size %d; actually %d",
chunksize, transferred);
result = SR_ERR;
break;
}
sr_info("Configure %d bytes", chunksize);
offset += chunksize;
}
fclose(fw);
g_free(buf);
if (result == SR_OK)
sr_info("FPGA configure done");
return result;
}
static int DSCope_dev_open(struct sr_dev_inst *sdi)
{
libusb_device **devlist;
struct sr_usb_dev_inst *usb;
struct libusb_device_descriptor des;
struct DSL_context *devc;
struct drv_context *drvc;
struct version_info vi;
int ret, skip, i, device_count;
uint8_t revid;
drvc = di->priv;
devc = sdi->priv;
usb = sdi->conn;
if (sdi->status == SR_ST_ACTIVE) {
/* Device is already in use. */
return SR_ERR;
}
skip = 0;
device_count = libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);
if (device_count < 0) {
sr_err("Failed to get device list: %s.",
libusb_error_name(device_count));
return SR_ERR;
}
for (i = 0; i < device_count; i++) {
if ((ret = libusb_get_device_descriptor(devlist[i], &des))) {
sr_err("Failed to get device descriptor: %s.",
libusb_error_name(ret));
continue;
}
if (des.idVendor != devc->profile->vid
|| des.idProduct != devc->profile->pid)
continue;
if (sdi->status == SR_ST_INITIALIZING) {
if (skip != sdi->index) {
/* Skip devices of this type that aren't the one we want. */
skip += 1;
continue;
}
} else if (sdi->status == SR_ST_INACTIVE) {
/*
* This device is fully enumerated, so we need to find
* this device by vendor, product, bus and address.
*/
if (libusb_get_bus_number(devlist[i]) != usb->bus
|| libusb_get_device_address(devlist[i]) != usb->address)
/* This is not the one. */
continue;
}
if (!(ret = libusb_open(devlist[i], &usb->devhdl))) {
if (usb->address == 0xff)
/*
* First time we touch this device after FW
* upload, so we don't know the address yet.
*/
usb->address = libusb_get_device_address(devlist[i]);
} else {
sr_err("Failed to open device: %s.",
libusb_error_name(ret));
break;
}
ret = command_get_fw_version(usb->devhdl, &vi);
if (ret != SR_OK) {
sr_err("Failed to get firmware version.");
break;
}
ret = command_get_revid_version(usb->devhdl, &revid);
if (ret != SR_OK) {
sr_err("Failed to get REVID.");
break;
}
/*
* Different versions may have incompatible issue,
* Mark for up level process
*/
if (vi.major != DSL_REQUIRED_VERSION_MAJOR ||
vi.minor != DSL_REQUIRED_VERSION_MINOR) {
sr_err("Expected firmware version %d.%d, "
"got %d.%d.", DSL_REQUIRED_VERSION_MAJOR, DSL_REQUIRED_VERSION_MINOR,
vi.major, vi.minor);
sdi->status = SR_ST_INCOMPATIBLE;
} else {
sdi->status = SR_ST_ACTIVE;
}
sr_info("Opened device %d on %d.%d, "
"interface %d, firmware %d.%d.",
sdi->index, usb->bus, usb->address,
USB_INTERFACE, vi.major, vi.minor);
sr_info("Detected REVID=%d, it's a Cypress CY7C68013%s.",
revid, (revid != 1) ? " (FX2)" : "A (FX2LP)");
break;
}
libusb_free_device_list(devlist, 1);
if ((sdi->status != SR_ST_ACTIVE) &&
(sdi->status != SR_ST_INCOMPATIBLE))
return SR_ERR;
return SR_OK;
}
static int configure_probes(const struct sr_dev_inst *sdi)
{
struct DSL_context *devc;
struct sr_channel *probe;
GSList *l;
int probe_bit, stage, i;
char *tc;
devc = sdi->priv;
for (i = 0; i < NUM_TRIGGER_STAGES; i++) {
devc->trigger_mask[i] = 0;
devc->trigger_value[i] = 0;
}
stage = -1;
for (l = sdi->channels; l; l = l->next) {
probe = (struct sr_channel *)l->data;
if (probe->enabled == FALSE)
continue;
if ((probe->index > 7 && probe->type == SR_CHANNEL_LOGIC) ||
(probe->type == SR_CHANNEL_ANALOG || probe->type == SR_CHANNEL_DSO))
devc->sample_wide = TRUE;
else
devc->sample_wide = FALSE;
probe_bit = 1 << (probe->index);
if (!(probe->trigger))
continue;
stage = 0;
for (tc = probe->trigger; *tc; tc++) {
devc->trigger_mask[stage] |= probe_bit;
if (*tc == '1')
devc->trigger_value[stage] |= probe_bit;
stage++;
if (stage > NUM_TRIGGER_STAGES)
return SR_ERR;
}
}
return SR_OK;
}
static struct DSL_context *DSCope_dev_new(void)
{
struct DSL_context *devc;
if (!(devc = g_try_malloc(sizeof(struct DSL_context)))) {
sr_err("Device context malloc failed.");
return NULL;
}
devc->profile = NULL;
devc->fw_updated = 0;
devc->cur_samplerate = DSCOPE_MAX_SAMPLERATE / MAX_DSO_PROBES_NUM;
devc->limit_samples = DSCOPE_MAX_DEPTH / MAX_DSO_PROBES_NUM;
devc->sample_wide = 0;
devc->clock_type = FALSE;
devc->clock_edge = FALSE;
devc->instant = FALSE;
devc->op_mode = SR_OP_BUFFER;
devc->th_level = SR_TH_3V3;
devc->filter = SR_FILTER_NONE;
devc->timebase = 10000;
devc->trigger_slope = DSO_TRIGGER_RISING;
devc->trigger_source = DSO_TRIGGER_AUTO;
devc->trigger_holdoff = 0;
devc->trigger_hpos = 0x0;
devc->trigger_hrate = 0;
devc->zero = FALSE;
devc->data_lock = FALSE;
devc->cali = FALSE;
devc->dso_bits = 8;
devc->trigger_margin = 8;
devc->trigger_channel = 0;
devc->rle_mode = FALSE;
return devc;
}
static int dev_clear(void)
{
return std_dev_clear(di, NULL);
}
static int init(struct sr_context *sr_ctx)
{
return std_hw_init(sr_ctx, di, LOG_PREFIX);
}
static struct DSL_vga* get_vga_ptr(const struct sr_dev_inst *sdi)
{
struct DSL_vga *vga_ptr = NULL;
if (strcmp(sdi->model, "DSCope") == 0)
vga_ptr = DSCope_vga;
else if (strcmp(sdi->model, "DSCope20") == 0)
vga_ptr = DSCope20_vga;
return vga_ptr;
}
static uint16_t get_default_trans(const struct sr_dev_inst *sdi)
{
uint16_t trans = 1;
if (strcmp(sdi->model, "DSCope") == 0)
trans = DSCOPE_DEFAULT_TRANS;
else if (strcmp(sdi->model, "DSCope20") == 0)
trans = DSCOPE20_DEFAULT_TRANS;
return trans;
}
static uint16_t get_default_voff(const struct sr_dev_inst *sdi, int ch_index)
{
uint16_t voff = 0;
if (strcmp(sdi->model, "DSCope") == 0) {
voff = DSCOPE_DEFAULT_VOFF;
} else if (strcmp(sdi->model, "DSCope20") == 0) {
if (ch_index == 1)
voff = CALI_VOFF_RANGE - DSCOPE20_DEFAULT_VOFF;
else
voff = DSCOPE20_DEFAULT_VOFF;
}
return voff;
}
static uint64_t get_default_vgain(const struct sr_dev_inst *sdi, unsigned int num)
{
uint64_t vgain = 0;
if (strcmp(sdi->model, "DSCope") == 0) {
assert(num < sizeof(DSCOPE_DEFAULT_VGAIN));
vgain = DSCOPE_DEFAULT_VGAIN[num];
}
else if (strcmp(sdi->model, "DSCope20") == 0) {
assert(num < sizeof(DSCOPE20_DEFAULT_VGAIN));
vgain = DSCOPE20_DEFAULT_VGAIN[num];
}
return vgain;
}
static void probe_init(struct sr_dev_inst *sdi)
{
int i;
GSList *l;
for (l = sdi->channels; l; l = l->next) {
struct sr_channel *probe = (struct sr_channel *)l->data;
if (sdi->mode == DSO) {
probe->vdiv = 1000;
probe->vfactor = 1;
probe->vpos = 0;
probe->coupling = SR_DC_COUPLING;
probe->trig_value = 0x80;
probe->vpos_trans = get_default_trans(sdi);
probe->ms_show = TRUE;
for (i = DSO_MS_BEGIN; i < DSO_MS_END; i++)
probe->ms_en[i] = default_ms_en[i];
}
}
}
static int set_probes(struct sr_dev_inst *sdi, int num_probes)
{
uint16_t j;
struct sr_channel *probe;
for (j = 0; j < num_probes; j++) {
if (!(probe = sr_channel_new(j, (sdi->mode == LOGIC) ? SR_CHANNEL_LOGIC : ((sdi->mode == DSO) ? SR_CHANNEL_DSO : SR_CHANNEL_ANALOG),
TRUE, probe_names[j])))
return SR_ERR;
sdi->channels = g_slist_append(sdi->channels, probe);
}
probe_init(sdi);
return SR_OK;
}
static int adjust_probes(struct sr_dev_inst *sdi, int num_probes)
{
uint16_t j;
struct sr_channel *probe;
assert(num_probes > 0);
j = g_slist_length(sdi->channels);
while(j < num_probes) {
if (!(probe = sr_channel_new(j, (sdi->mode == LOGIC) ? SR_CHANNEL_LOGIC : ((sdi->mode == DSO) ? SR_CHANNEL_DSO : SR_CHANNEL_ANALOG),
TRUE, probe_names[j])))
return SR_ERR;
sdi->channels = g_slist_append(sdi->channels, probe);
j++;
}
while(j > num_probes) {
sdi->channels = g_slist_delete_link(sdi->channels, g_slist_last(sdi->channels));
j--;
}
return SR_OK;
}
static GSList *scan(GSList *options)
{
struct drv_context *drvc;
struct DSL_context *devc;
struct sr_dev_inst *sdi;
struct sr_usb_dev_inst *usb;
struct sr_config *src;
const struct DSL_profile *prof;
GSList *l, *devices, *conn_devices;
struct libusb_device_descriptor des;
libusb_device **devlist;
int devcnt, ret, i, j;
const char *conn;
drvc = di->priv;
conn = NULL;
for (l = options; l; l = l->next) {
src = l->data;
switch (src->key) {
case SR_CONF_CONN:
conn = g_variant_get_string(src->data, NULL);
break;
}
}
if (conn)
conn_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn);
else
conn_devices = NULL;
/* Find all DSCope compatible devices and upload firmware to them. */
devices = NULL;
libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);
for (i = 0; devlist[i]; i++) {
if (conn) {
usb = NULL;
for (l = conn_devices; l; l = l->next) {
usb = l->data;
if (usb->bus == libusb_get_bus_number(devlist[i])
&& usb->address == libusb_get_device_address(devlist[i]))
break;
}
if (!l)
/* This device matched none of the ones that
* matched the conn specification. */
continue;
}
if ((ret = libusb_get_device_descriptor( devlist[i], &des)) != 0) {
sr_warn("Failed to get device descriptor: %s.",
libusb_error_name(ret));
continue;
}
prof = NULL;
for (j = 0; supported_DSCope[j].vid; j++) {
if (des.idVendor == supported_DSCope[j].vid &&
des.idProduct == supported_DSCope[j].pid) {
prof = &supported_DSCope[j];
}
}
/* Skip if the device was not found. */
if (!prof)
continue;
devcnt = g_slist_length(drvc->instances);
sdi = sr_dev_inst_new(DSO, devcnt, SR_ST_INITIALIZING,
prof->vendor, prof->model, prof->model_version);
if (!sdi)
return NULL;
sdi->driver = di;
/* Fill in probelist according to this device's profile. */
if (set_probes(sdi, 2) != SR_OK)
return NULL;
devc = DSCope_dev_new();
devc->profile = prof;
sdi->priv = devc;
drvc->instances = g_slist_append(drvc->instances, sdi);
//devices = g_slist_append(devices, sdi);
if (check_conf_profile(devlist[i])) {
/* Already has the firmware, so fix the new address. */
sr_dbg("Found an DSCope device.");
sdi->status = SR_ST_INACTIVE;
sdi->inst_type = SR_INST_USB;
sdi->conn = sr_usb_dev_inst_new(libusb_get_bus_number(devlist[i]),
libusb_get_device_address(devlist[i]), NULL);
/* only report device after firmware is ready */
devices = g_slist_append(devices, sdi);
} else {
char *firmware = malloc(strlen(DS_RES_PATH)+strlen(prof->firmware)+1);
if (firmware == NULL)
return NULL;
strcpy(firmware, DS_RES_PATH);
strcat(firmware, prof->firmware);
if (ezusb_upload_firmware(devlist[i], USB_CONFIGURATION,
firmware) == SR_OK)
/* Store when this device's FW was updated. */
devc->fw_updated = g_get_monotonic_time();
else
sr_err("Firmware upload failed for "
"device %d.", devcnt);
g_free(firmware);
sdi->inst_type = SR_INST_USB;
sdi->conn = sr_usb_dev_inst_new (libusb_get_bus_number(devlist[i]),
0xff, NULL);
}
}
libusb_free_device_list(devlist, 1);
g_slist_free_full(conn_devices, (GDestroyNotify)sr_usb_dev_inst_free);
return devices;
}
static GSList *dev_list(void)
{
return ((struct drv_context *)(di->priv))->instances;
}
static GSList *dev_mode_list(const struct sr_dev_inst *sdi)
{
(void)sdi;
GSList *l = NULL;
unsigned int i;
for(i = 0; i < ARRAY_SIZE(mode_list); i++) {
l = g_slist_append(l, &mode_list[i]);
}
return l;
}
static uint64_t dso_vga(const struct sr_dev_inst *sdi, const struct sr_channel* ch)
{
int i;
struct DSL_vga *vga_ptr = get_vga_ptr(sdi);
for (i = 0; vga_ptr && (vga_ptr+i)->key; i++) {
if ((vga_ptr+i)->key == ch->vdiv)
return (ch->index == 0) ? (vga_ptr+i)->vgain0 : (vga_ptr+i)->vgain1;
}
return 0;
}
static uint64_t dso_voff(const struct sr_dev_inst *sdi, const struct sr_channel* ch)
{
int i;
struct DSL_vga *vga_ptr = get_vga_ptr(sdi);
for (i = 0; vga_ptr && (vga_ptr+i)->key; i++) {
if ((vga_ptr+i)->key == ch->vdiv)
return (ch->index == 0) ? (vga_ptr+i)->voff0 : (vga_ptr+i)->voff1;
}
return 0;
}
static uint64_t dso_vpos(const struct sr_dev_inst *sdi, const struct sr_channel* ch)
{
uint64_t vpos;
int vpos_coarse, vpos_fine;
int trans_coarse, trans_fine;
struct DSL_context *devc = sdi->priv;
const double voltage = (devc->zero && devc->zero_comb == -1) ? 0 : ch->vpos;
if (strcmp(sdi->model, "DSCope") == 0) {
trans_coarse = (ch->vpos_trans & 0xFF00) >> 8;
trans_fine = (ch->vpos_trans & 0x00FF);
if (ch->vdiv < 500) {
vpos_coarse = floor(-voltage*DSCOPE_TRANS_CMULTI/trans_coarse + 0.5);
vpos_fine = floor((voltage + vpos_coarse*trans_coarse/DSCOPE_TRANS_CMULTI)*1000.0/trans_fine + 0.5);
} else {
vpos_coarse = floor(-voltage/trans_coarse + 0.5);
vpos_fine = floor((voltage + vpos_coarse*trans_coarse)*DSCOPE_TRANS_FMULTI/trans_fine + 0.5);
}
//vpos = (vpos_coarse << 16) + vpos_fine;
} else if (strcmp(sdi->model, "DSCope20") == 0) {
vpos = ((ch->vdiv*5.0) - voltage)/(ch->vdiv*10.0)*ch->vpos_trans;
}
const uint64_t voff = dso_voff(sdi, ch);
if (strcmp(sdi->model, "DSCope") == 0)
return ((vpos_coarse+DSCOPE_CONSTANT_BIAS+(voff>>10)) << 16)+vpos_fine+(voff&0x03ff);
else if (strcmp(sdi->model, "DSCope20") == 0)
return vpos+voff;
else
return 0;
}
static uint64_t dso_cmd_gen(const struct sr_dev_inst *sdi, struct sr_channel* ch, int id)
{
struct DSL_context *devc;
uint64_t cmd = 0;
uint64_t vpos;
GSList *l;
const int ch_bit = 7;
devc = sdi->priv;
switch (id) {
case SR_CONF_EN_CH:
case SR_CONF_COUPLING:
if (devc->zero || en_ch_num(sdi) == 2) {
cmd += 0x0E00;
//cmd += 0x000;
} else if (en_ch_num(sdi) == 1) {
if (((ch->index == 0) && ch->enabled) || ((ch->index == 1) && !ch->enabled))
cmd += 0x1600;
else if (((ch->index == 1) && ch->enabled) || ((ch->index == 0) && !ch->enabled))
cmd += 0x1A00;
} else {
return 0x0;
}
cmd += ch->index << ch_bit;
if (devc->zero || ch->coupling == SR_DC_COUPLING)
cmd += 0x100;
else if (ch->coupling == SR_GND_COUPLING)
cmd &= 0xFFFFFDFF;
break;
case SR_CONF_VDIV:
case SR_CONF_TIMEBASE:
cmd += 0x8;
cmd += ch->index << ch_bit;
// --VGAIN
cmd += dso_vga(sdi, ch);
break;
case SR_CONF_VPOS:
cmd += 0x10;
cmd += ch->index << ch_bit;
vpos = dso_vpos(sdi, ch);
cmd += (vpos << 8);
break;
case SR_CONF_SAMPLERATE:
cmd += 0x18;
uint32_t divider = devc->zero ? 0x1 : (uint32_t)ceil(DSCOPE_MAX_SAMPLERATE * 1.0 / devc->cur_samplerate / en_ch_num(sdi));
cmd += divider << 8;
break;
case SR_CONF_HORIZ_TRIGGERPOS:
cmd += 0x20;
cmd += devc->trigger_hpos << 8;
break;
case SR_CONF_TRIGGER_SLOPE:
cmd += 0x28;
cmd += devc->trigger_slope << 8;
break;
case SR_CONF_TRIGGER_SOURCE:
cmd += 0x30;
cmd += devc->zero ? 0x0 : devc->trigger_source << 8;
break;
case SR_CONF_TRIGGER_VALUE:
cmd += 0x38;
for (l = sdi->channels; l; l = l->next) {
struct sr_channel *probe = (struct sr_channel *)l->data;
cmd += probe->trig_value << (8 * (probe->index + 1));
}
break;
case SR_CONF_TRIGGER_MARGIN:
cmd += 0x40;
cmd += ((uint64_t)devc->trigger_margin << 8);
break;
case SR_CONF_TRIGGER_HOLDOFF:
cmd += 0x58;
cmd += ((uint64_t)devc->trigger_holdoff << 8);
break;
case SR_CONF_DSO_SYNC:
cmd = 0xa5a5a500;
break;
default:
cmd = 0xFFFFFFFF;
}
return cmd;
}
static gboolean dso_load_eep(struct sr_dev_inst *sdi, struct sr_channel *probe, gboolean fpga_done)
{
int ret, i;
struct sr_usb_dev_inst *usb = sdi->conn;
struct cmd_zero_info zero_info;
uint8_t dst_addr = (zero_base_addr +
probe->index * (sizeof(struct cmd_zero_info) + sizeof(struct cmd_vga_info)));
zero_info.zero_addr = dst_addr;
if ((ret = command_rd_nvm(usb->devhdl, (unsigned char *)&zero_info, zero_info.zero_addr, sizeof(struct cmd_zero_info))) != SR_OK) {
return FALSE;
sr_err("%s: Send Get Zero command failed!", __func__);
} else {
if (zero_info.zero_addr == dst_addr) {
uint8_t* voff_ptr = &zero_info.zero_addr + 1;
struct DSL_vga *vga_ptr = get_vga_ptr(sdi);
for (i = 0; vga_ptr && (vga_ptr+i)->key; i++) {
if (probe->index == 0)
(vga_ptr+i)->voff0 = (*(voff_ptr + 2*i+1) << 8) + *(voff_ptr + 2*i);
else
(vga_ptr+i)->voff1 = (*(voff_ptr + 2*i+1) << 8) + *(voff_ptr + 2*i);
}
if (i != 0) {
probe->comb_diff_top = *(voff_ptr + 2*i);
probe->comb_diff_bom = *(voff_ptr + 2*i + 1);
probe->vpos_trans = *(voff_ptr + 2*i + 2) + (*(voff_ptr + 2*i + 3) << 8);
if (!fpga_done) {
const double slope = (probe->comb_diff_bom - probe->comb_diff_top)/(2.0*255.0);
for (i = 0; i < 256; i++) {
ret = command_wr_reg(usb->devhdl, i, COMB_ADDR + probe->index*2);
int value = i+i*slope+probe->comb_diff_top*0.5+0.5;
value = (value < 0) ? 0 :
(value > 255) ? 255 : value;
ret = command_wr_reg(usb->devhdl, value, COMB_ADDR + probe->index*2 + 1);
}
}
}
} else {
return FALSE;
}
}
struct cmd_vga_info vga_info;
vga_info.vga_addr = dst_addr + sizeof(struct cmd_zero_info);
if ((ret = command_rd_nvm(usb->devhdl, (unsigned char *)&vga_info, vga_info.vga_addr, sizeof(struct cmd_vga_info))) != SR_OK) {
return FALSE;
sr_err("%s: Send Get Zero command failed!", __func__);
} else {
if (vga_info.vga_addr == dst_addr + sizeof(struct cmd_zero_info)) {
uint16_t* vgain_ptr = &vga_info.vga0;
struct DSL_vga *vga_ptr = get_vga_ptr(sdi);
for (i = 0; vga_ptr && (vga_ptr+i)->key; i++) {
if (probe->index == 0)
(vga_ptr+i)->vgain0 = *(vgain_ptr + i) << 8;
else
(vga_ptr+i)->vgain1 = *(vgain_ptr + i) << 8;
}
} else {
return FALSE;
}
}
return TRUE;
}
static int config_get(int id, GVariant **data, const struct sr_dev_inst *sdi,
const struct sr_channel *ch,
const struct sr_channel_group *cg)
{
struct DSL_context *devc;
struct sr_usb_dev_inst *usb;
char str[128];
unsigned int i;
struct DSL_vga *vga_ptr;
uint8_t tmp_u8;
int ret;
(void)cg;
switch (id) {
case SR_CONF_CONN:
if (!sdi || !sdi->conn)
return SR_ERR_ARG;
usb = sdi->conn;
if (usb->address == 255)
/* Device still needs to re-enumerate after firmware
* upload, so we don't know its (future) address. */
return SR_ERR;
snprintf(str, 128, "%d.%d", usb->bus, usb->address);
*data = g_variant_new_string(str);
break;
case SR_CONF_LIMIT_SAMPLES:
if (!sdi)
return SR_ERR;
devc = sdi->priv;
*data = g_variant_new_uint64(devc->limit_samples);
break;
case SR_CONF_SAMPLERATE:
if (!sdi)
return SR_ERR;
devc = sdi->priv;
*data = g_variant_new_uint64(devc->cur_samplerate);
break;
case SR_CONF_CLOCK_TYPE:
if (!sdi)
return SR_ERR;
devc = sdi->priv;
*data = g_variant_new_boolean(devc->clock_type);
break;
case SR_CONF_CLOCK_EDGE:
if (!sdi)
return SR_ERR;
devc = sdi->priv;
*data = g_variant_new_boolean(devc->clock_edge);
break;
case SR_CONF_INSTANT:
if (!sdi)
return SR_ERR;
devc = sdi->priv;
*data = g_variant_new_boolean(devc->instant);
break;
case SR_CONF_OPERATION_MODE:
if (!sdi)
return SR_ERR;
devc = sdi->priv;
*data = g_variant_new_string(opmodes[devc->op_mode]);
break;
case SR_CONF_FILTER:
if (!sdi)
return SR_ERR;
devc = sdi->priv;
*data = g_variant_new_string(filters[devc->filter]);
break;
case SR_CONF_THRESHOLD:
if (!sdi)
return SR_ERR;
devc = sdi->priv;
*data = g_variant_new_string(thresholds[devc->th_level]);
break;
case SR_CONF_VDIV:
if (!ch)
return SR_ERR;
*data = g_variant_new_uint64(ch->vdiv);
break;
case SR_CONF_FACTOR:
if (!ch)
return SR_ERR;
*data = g_variant_new_uint64(ch->vfactor);
break;
case SR_CONF_VPOS:
if (!ch)
return SR_ERR;
*data = g_variant_new_double(ch->vpos);
break;
case SR_CONF_TIMEBASE:
if (!sdi)
return SR_ERR;
devc = sdi->priv;
*data = g_variant_new_uint64(devc->timebase);
break;
case SR_CONF_COUPLING:
if (!ch)
return SR_ERR;
*data = g_variant_new_byte(ch->coupling);
break;
case SR_CONF_EN_CH:
if (!ch)
return SR_ERR;
*data = g_variant_new_boolean(ch->enabled);
break;
case SR_CONF_DATALOCK:
if (!sdi)
return SR_ERR;
devc = sdi->priv;
*data = g_variant_new_boolean(devc->data_lock);
break;
case SR_CONF_TRIGGER_SLOPE:
if (!sdi)
return SR_ERR;
devc = sdi->priv;
*data = g_variant_new_byte(devc->trigger_slope);
break;
case SR_CONF_TRIGGER_SOURCE:
if (!sdi)
return SR_ERR;
devc = sdi->priv;
*data = g_variant_new_byte(devc->trigger_source&0x0f);
break;
case SR_CONF_TRIGGER_CHANNEL:
if (!sdi)
return SR_ERR;
devc = sdi->priv;
*data = g_variant_new_byte(devc->trigger_source>>4);
break;
case SR_CONF_TRIGGER_VALUE:
if (!ch)
return SR_ERR;
*data = g_variant_new_byte(ch->trig_value);
break;
case SR_CONF_HORIZ_TRIGGERPOS:
if (!sdi)
return SR_ERR;
devc = sdi->priv;
if (sdi->mode == DSO) {
*data = g_variant_new_byte(devc->trigger_hrate);
} else {
*data = g_variant_new_byte(devc->trigger_hpos);
}
break;
case SR_CONF_TRIGGER_HOLDOFF:
if (!sdi)
return SR_ERR;
devc = sdi->priv;
*data = g_variant_new_uint64(devc->trigger_holdoff);
break;
case SR_CONF_TRIGGER_MARGIN:
if (!sdi)
return SR_ERR;
devc = sdi->priv;
*data = g_variant_new_byte(devc->trigger_margin);
break;
case SR_CONF_ZERO:
if (!sdi)
return SR_ERR;
devc = sdi->priv;
*data = g_variant_new_boolean(devc->zero);
break;
case SR_CONF_CALI:
if (!sdi)
return SR_ERR;
devc = sdi->priv;
*data = g_variant_new_boolean(devc->cali);
break;
case SR_CONF_ROLL:
if (!sdi)
return SR_ERR;
devc = sdi->priv;
*data = g_variant_new_boolean(devc->roll);
break;
case SR_CONF_TEST:
if (!sdi)
return SR_ERR;
*data = g_variant_new_boolean(FALSE);
break;
case SR_CONF_MAX_DSO_SAMPLERATE:
if (!sdi)
return SR_ERR;
*data = g_variant_new_uint64(DSCOPE_MAX_SAMPLERATE);
break;
case SR_CONF_MAX_DSO_SAMPLELIMITS:
if (!sdi)
return SR_ERR;
*data = g_variant_new_uint64(DSCOPE_MAX_DEPTH);
break;
case SR_CONF_HW_DEPTH:
if (!sdi)
return SR_ERR;
*data = g_variant_new_uint64(DSCOPE_INSTANT_DEPTH);
break;
case SR_CONF_VGAIN:
if (!sdi || !ch)
return SR_ERR;
*data = g_variant_new_uint64(dso_vga(sdi, ch)>>8);
break;
case SR_CONF_VGAIN_DEFAULT:
if (!sdi || !ch)
return SR_ERR;
vga_ptr = get_vga_ptr(sdi);
for (i = 0; vga_ptr && (vga_ptr+i)->key; i++) {
if ((vga_ptr+i)->key == ch->vdiv)
break;
}
*data = g_variant_new_uint64(get_default_vgain(sdi, i)>>8);
break;
case SR_CONF_VGAIN_RANGE:
if (!sdi)
return SR_ERR;
vga_ptr = get_vga_ptr(sdi);
for (i = 0; vga_ptr && (vga_ptr+i)->key; i++) {
if ((vga_ptr+i)->key == ch->vdiv)
break;
}
uint16_t vgain_default= (get_default_vgain(sdi, i)>>8) & 0x0FFF;
*data = g_variant_new_uint16(min(CALI_VGAIN_RANGE, vgain_default*2));
break;
case SR_CONF_VOFF:
if (!sdi || !ch)
return SR_ERR;
uint16_t voff = dso_voff(sdi, ch);
uint16_t voff_default = get_default_voff(sdi, ch->index);
if (strcmp(sdi->model, "DSCope") == 0) {
int voff_skew_coarse = (voff >> 10) - (voff_default >> 10);
int voff_skew_fine = (voff & 0x03ff) - (voff_default & 0x03ff);
double trans_coarse = (ch->vdiv < 500) ? (ch->vpos_trans >> 8)/DSCOPE_TRANS_CMULTI : (ch->vpos_trans >> 8);
double trans_fine = (ch->vdiv < 500) ? (ch->vpos_trans & 0x00ff) / 1000.0 : (ch->vpos_trans & 0x00ff) / DSCOPE_TRANS_FMULTI;
double voff_rate = (voff_skew_coarse*trans_coarse - voff_skew_fine*trans_fine) / ch->vdiv;
voff = (voff_rate * 0.5 + 0.5) * CALI_VOFF_RANGE;
}
*data = g_variant_new_uint16(voff);
break;
case SR_CONF_VOFF_DEFAULT:
if (!sdi || !ch)
return SR_ERR;
*data = g_variant_new_uint16(get_default_voff(sdi, ch->index));
break;
case SR_CONF_VOFF_RANGE:
if (!sdi)
return SR_ERR;
*data = g_variant_new_uint16(CALI_VOFF_RANGE);
break;
case SR_CONF_DSO_BITS:
if (!sdi)
return SR_ERR;
devc = sdi->priv;
*data = g_variant_new_byte(devc->dso_bits);
break;
case SR_CONF_HW_STATUS:
if (!sdi)
return SR_ERR;
usb = sdi->conn;
ret = command_get_hw_info(usb->devhdl, &tmp_u8);
if (ret == SR_OK)
*data = g_variant_new_byte(tmp_u8);
else
*data = g_variant_new_byte(0);
break;
default:
return SR_ERR_NA;
}
return SR_OK;
}
static int config_set(int id, GVariant *data, struct sr_dev_inst *sdi,
struct sr_channel *ch,
struct sr_channel_group *cg )
{
struct DSL_context *devc;
const char *stropt;
int ret, num_probes;
struct sr_usb_dev_inst *usb;
struct drv_context *drvc;
(void)cg;
if (sdi->status != SR_ST_ACTIVE)
return SR_ERR;
drvc = di->priv;
devc = sdi->priv;
usb = sdi->conn;
ret = SR_OK;
if (id == SR_CONF_SAMPLERATE) {
devc->cur_samplerate = g_variant_get_uint64(data);
if (sdi->mode == LOGIC) {
if (devc->cur_samplerate >= SR_MHZ(200)) {
adjust_probes(sdi, SR_MHZ(1600)/devc->cur_samplerate);
} else {
adjust_probes(sdi, 16);
}
} else if(sdi->mode == DSO) {
ret = command_dso_ctrl(usb->devhdl, dso_cmd_gen(sdi, 0, SR_CONF_SAMPLERATE));
}
} else if (id == SR_CONF_CLOCK_TYPE) {
devc->clock_type = g_variant_get_boolean(data);
} else if (id == SR_CONF_CLOCK_EDGE) {
devc->clock_edge = g_variant_get_boolean(data);
} else if (id == SR_CONF_INSTANT) {
devc->instant = g_variant_get_boolean(data);
if (en_ch_num(sdi) != 0) {
if (devc->instant)
devc->limit_samples = DSCOPE_INSTANT_DEPTH / en_ch_num(sdi);
else
devc->limit_samples = DSCOPE_MAX_DEPTH / en_ch_num(sdi);
}
} else if (id == SR_CONF_LIMIT_SAMPLES) {
devc->limit_samples = g_variant_get_uint64(data);
} else if (id == SR_CONF_DEVICE_MODE) {
sdi->mode = g_variant_get_int16(data);
if (sdi->mode == LOGIC) {
num_probes = devc->profile->dev_caps & DEV_CAPS_16BIT ? 16 : 8;
} else if (sdi->mode == DSO) {
sdi->mode = DSO;
num_probes = devc->profile->dev_caps & DEV_CAPS_16BIT ? MAX_DSO_PROBES_NUM : 1;
ret = command_dso_ctrl(usb->devhdl, dso_cmd_gen(sdi, NULL, SR_CONF_DSO_SYNC));
if (ret != SR_OK)
sr_dbg("%s: DSO configuration sync failed", __func__);
ret = command_dso_ctrl(usb->devhdl, dso_cmd_gen(sdi, sdi->channels->data, SR_CONF_VDIV));
if (ret == SR_OK)
sr_dbg("%s: Initial setting for DSO mode", __func__);
else
sr_dbg("%s: Initial setting for DSO mode failed", __func__);
devc->cur_samplerate = DSCOPE_MAX_SAMPLERATE / num_probes;
devc->limit_samples = DSCOPE_MAX_DEPTH / num_probes;
} else {
num_probes = devc->profile->dev_caps & DEV_CAPS_16BIT ? MAX_ANALOG_PROBES_NUM : 1;
}
sr_dev_probes_free(sdi);
set_probes(sdi, num_probes);
sr_dbg("%s: setting mode to %d", __func__, sdi->mode);
} else if (id == SR_CONF_OPERATION_MODE) {
stropt = g_variant_get_string(data, NULL);
if (!strcmp(stropt, opmodes[SR_OP_BUFFER])) {
devc->op_mode = SR_OP_BUFFER;
} else if (!strcmp(stropt, opmodes[SR_OP_INTERNAL_TEST])) {
devc->op_mode = SR_OP_INTERNAL_TEST;
} else if (!strcmp(stropt, opmodes[SR_OP_EXTERNAL_TEST])) {
devc->op_mode = SR_OP_EXTERNAL_TEST;
} else if (!strcmp(stropt, opmodes[SR_OP_LOOPBACK_TEST])) {
devc->op_mode = SR_OP_LOOPBACK_TEST;
} else {
ret = SR_ERR;
}
sr_dbg("%s: setting pattern to %d",
__func__, devc->op_mode);
} else if (id == SR_CONF_THRESHOLD) {
stropt = g_variant_get_string(data, NULL);
if (!strcmp(stropt, thresholds[SR_TH_3V3])) {
devc->th_level = SR_TH_3V3;
} else if (!strcmp(stropt, thresholds[SR_TH_5V0])) {
devc->th_level = SR_TH_5V0;
} else {
ret = SR_ERR;
}
if ((ret = command_fpga_config(usb->devhdl)) != SR_OK) {
sr_err("Send FPGA configure command failed!");
} else {
/* Takes >= 10ms for the FX2 to be ready for FPGA configure. */
g_usleep(10 * 1000);
//char filename[256];
//sprintf(filename,"%s%s",DS_RES_PATH,devc->profile->fpga_bit33);
//const char *fpga_bit = filename;
char *fpga_bit = malloc(strlen(DS_RES_PATH)+strlen(devc->profile->fpga_bit33)+1);
if (fpga_bit == NULL)
return SR_ERR_MALLOC;
strcpy(fpga_bit, DS_RES_PATH);
strcat(fpga_bit, devc->profile->fpga_bit33);
ret = fpga_config(usb->devhdl, fpga_bit);
if (ret != SR_OK) {
sr_err("Configure FPGA failed!");
}
}
sr_dbg("%s: setting threshold to %d",
__func__, devc->th_level);
} else if (id == SR_CONF_FILTER) {
stropt = g_variant_get_string(data, NULL);
if (!strcmp(stropt, filters[SR_FILTER_NONE])) {
devc->filter = SR_FILTER_NONE;
} else if (!strcmp(stropt, filters[SR_FILTER_1T])) {
devc->filter = SR_FILTER_1T;
} else {
ret = SR_ERR;
}
sr_dbg("%s: setting threshold to %d",
__func__, devc->th_level);
} else if (id == SR_CONF_EN_CH) {
ch->enabled = g_variant_get_boolean(data);
if (sdi->mode == DSO) {
ret = command_dso_ctrl(usb->devhdl, dso_cmd_gen(sdi, ch, SR_CONF_EN_CH));
if (en_ch_num(sdi) != 0) {
ret = command_dso_ctrl(usb->devhdl, dso_cmd_gen(sdi, 0, SR_CONF_SAMPLERATE));
}
}
if (ret == SR_OK)
sr_dbg("%s: setting ENABLE of channel %d to %d",
__func__, ch->index, ch->enabled);
else
sr_dbg("%s: setting ENABLE of channel %d to %d failed",
__func__, ch->index, ch->enabled);
} else if (id == SR_CONF_DATALOCK) {
while(libusb_try_lock_events(drvc->sr_ctx->libusb_ctx));
devc->data_lock = g_variant_get_boolean(data);
libusb_unlock_events(drvc->sr_ctx->libusb_ctx);
} else if (id == SR_CONF_VDIV) {
ch->vdiv = g_variant_get_uint64(data);
if (sdi->mode == DSO) {
ret = command_dso_ctrl(usb->devhdl, dso_cmd_gen(sdi, ch, SR_CONF_VDIV));
}
if (ret == SR_OK)
sr_dbg("%s: setting VDIV of channel %d to %d mv",
__func__, ch->index, ch->vdiv);
else
sr_dbg("%s: setting VDIV of channel %d to %d mv failed",
__func__, ch->index, ch->vdiv);
} else if (id == SR_CONF_FACTOR) {
ch->vfactor = g_variant_get_uint64(data);
} else if (id == SR_CONF_VPOS) {
ch->vpos = g_variant_get_double(data);
if (sdi->mode == DSO) {
ret = command_dso_ctrl(usb->devhdl, dso_cmd_gen(sdi, ch, SR_CONF_VPOS));
}
if (ret == SR_OK)
sr_dbg("%s: setting VPOS of channel %d to %lf mv",
__func__, ch->index, ch->vpos);
else
sr_dbg("%s: setting VPOS of channel %d to %lf mv failed",
__func__, ch->index, ch->vpos);
} else if (id == SR_CONF_TIMEBASE) {
devc->timebase = g_variant_get_uint64(data);
} else if (id == SR_CONF_COUPLING) {
ch->coupling = g_variant_get_byte(data);
if (sdi->mode == DSO) {
ret = command_dso_ctrl(usb->devhdl, dso_cmd_gen(sdi, ch, SR_CONF_COUPLING));
}
if (ret == SR_OK)
sr_dbg("%s: setting AC COUPLING of channel %d to %d",
__func__, ch->index, ch->coupling);
else
sr_dbg("%s: setting AC COUPLING of channel %d to %d failed",
__func__, ch->index, ch->coupling);
} else if (id == SR_CONF_TRIGGER_SLOPE) {
devc->trigger_slope = g_variant_get_byte(data);
if (sdi->mode == DSO) {
ret = command_dso_ctrl(usb->devhdl, dso_cmd_gen(sdi, NULL, SR_CONF_TRIGGER_SLOPE));
}
if (ret == SR_OK)
sr_dbg("%s: setting DSO Trigger Slope to %d",
__func__, devc->trigger_slope);
else
sr_dbg("%s: setting DSO Trigger Slope to %d failed",
__func__, devc->trigger_slope);
} else if (id == SR_CONF_TRIGGER_SOURCE) {
devc->trigger_source = (devc->trigger_source & 0xf0) + (g_variant_get_byte(data) & 0x0f);
ret = command_dso_ctrl(usb->devhdl, dso_cmd_gen(sdi, NULL, SR_CONF_TRIGGER_SOURCE));
if (ret == SR_OK)
sr_dbg("%s: setting DSO Trigger Source to %d",
__func__, devc->trigger_source);
else
sr_dbg("%s: setting DSO Trigger Source to %d failed",
__func__, devc->trigger_source);
} else if (id == SR_CONF_TRIGGER_CHANNEL) {
devc->trigger_source = (g_variant_get_byte(data) << 4) + (devc->trigger_source & 0x0f);
ret = command_dso_ctrl(usb->devhdl, dso_cmd_gen(sdi, NULL, SR_CONF_TRIGGER_SOURCE));
if (ret == SR_OK)
sr_dbg("%s: setting DSO Trigger Source to %d",
__func__, devc->trigger_source);
else
sr_dbg("%s: setting DSO Trigger Source to %d failed",
__func__, devc->trigger_source);
} else if (id == SR_CONF_TRIGGER_VALUE) {
ch->trig_value = g_variant_get_byte(data);
if (sdi->mode == DSO) {
ret = command_dso_ctrl(usb->devhdl, dso_cmd_gen(sdi, ch, SR_CONF_TRIGGER_VALUE));
}
if (ret == SR_OK)
sr_dbg("%s: setting channel %d Trigger Value to %d",
__func__, ch->index, ch->trig_value);
else
sr_dbg("%s: setting DSO Trigger Value to %d failed",
__func__, ch->index, ch->trig_value);
} else if (id == SR_CONF_HORIZ_TRIGGERPOS) {
devc->trigger_hrate = g_variant_get_byte(data);
//devc->trigger_hpos = devc->trigger_hrate * en_ch_num(sdi) * devc->limit_samples / 200.0;
/*
* devc->trigger_hpos should be updated before each acquisition
* because the samplelimits may changed
*/
devc->trigger_hpos = devc->trigger_hrate * en_ch_num(sdi) * devc->limit_samples / 200.0;
if ((ret = command_dso_ctrl(usb->devhdl, dso_cmd_gen(sdi, NULL, SR_CONF_HORIZ_TRIGGERPOS))) == SR_OK)
sr_dbg("%s: setting DSO Horiz Trigger Position to %d",
__func__, devc->trigger_hpos);
else
sr_dbg("%s: setting DSO Horiz Trigger Position to %d failed",
__func__, devc->trigger_hpos);
} else if (id == SR_CONF_TRIGGER_HOLDOFF) {
devc->trigger_holdoff = g_variant_get_uint64(data);
if (sdi->mode == DSO) {
ret = command_dso_ctrl(usb->devhdl, dso_cmd_gen(sdi, NULL, SR_CONF_TRIGGER_HOLDOFF));
}
if (ret == SR_OK)
sr_dbg("%s: setting Trigger Holdoff Time to %d",
__func__, devc->trigger_holdoff);
else
sr_dbg("%s: setting Trigger Holdoff Time to %d failed",
__func__, devc->trigger_holdoff);
} else if (id == SR_CONF_TRIGGER_MARGIN) {
devc->trigger_margin = g_variant_get_byte(data);
if (sdi->mode == DSO) {
ret = command_dso_ctrl(usb->devhdl, dso_cmd_gen(sdi, NULL, SR_CONF_TRIGGER_MARGIN));
}
if (ret == SR_OK)
sr_dbg("%s: setting Trigger Margin to %d",
__func__, devc->trigger_margin);
else
sr_dbg("%s: setting Trigger Margin to %d failed",
__func__, devc->trigger_margin);
} else if (id == SR_CONF_ZERO) {
devc->zero = g_variant_get_boolean(data);
if (devc->zero) {
devc->zero_stage = -1;
devc->zero_pcnt = 0;
devc->zero_comb = -1;
GSList *l;
unsigned int i;
struct DSL_vga *vga_ptr = get_vga_ptr(sdi);
for(l = sdi->channels; l; l = l->next) {
struct sr_channel *probe = (struct sr_channel *)l->data;
probe->vpos_trans = get_default_trans(sdi);
}
for (i = 0; vga_ptr && (vga_ptr+i)->key; i++) {
(vga_ptr+i)->vgain0 = get_default_vgain(sdi, i);
(vga_ptr+i)->vgain1 = get_default_vgain(sdi, i);
(vga_ptr+i)->voff0 = get_default_voff(sdi, 0);
(vga_ptr+i)->voff1 = get_default_voff(sdi, 1);
}
}
} else if (id == SR_CONF_CALI) {
devc->cali = g_variant_get_boolean(data);
} else if (id == SR_CONF_ZERO_LOAD) {
GSList *l;
for(l = sdi->channels; l; l = l->next) {
struct sr_channel *probe = (struct sr_channel *)l->data;
if (!dso_load_eep(sdi, probe, FALSE)) {
config_set(SR_CONF_ZERO, g_variant_new_boolean(TRUE), sdi, NULL, NULL);
sr_info("Zero have not been setted!");
break;
}
}
} else if (id == SR_CONF_ZERO_SET) {
GSList *l;
struct cmd_zero_info zero_info;
struct cmd_vga_info vga_info;
for(l = sdi->channels; l; l = l->next) {
struct sr_channel *probe = (struct sr_channel *)l->data;
zero_info.zero_addr = zero_base_addr +
probe->index * (sizeof(struct cmd_zero_info) + sizeof(struct cmd_vga_info));
int i;
struct DSL_vga *vga_ptr = get_vga_ptr(sdi);
uint8_t *voff_ptr = &zero_info.zero_addr + 1;
for (i = 0; vga_ptr && (vga_ptr+i)->key; i++) {
*(voff_ptr+2*i) = ((probe->index == 0) ? (vga_ptr+i)->voff0 : (vga_ptr+i)->voff1) & 0x00ff;
*(voff_ptr+2*i+1) = ((probe->index == 0) ? (vga_ptr+i)->voff0 : (vga_ptr+i)->voff1) >> 8;
}
if (i != 0) {
*(voff_ptr+2*i) = probe->comb_diff_top;
*(voff_ptr+2*i+1) = probe->comb_diff_bom;
*(voff_ptr+2*i+2) = (probe->vpos_trans&0x00FF);
*(voff_ptr+2*i+3) = (probe->vpos_trans>>8);
vga_info.vga_addr = zero_info.zero_addr + sizeof(struct cmd_zero_info);
uint16_t *vgain_ptr = &vga_info.vga0;
for (i=0; vga_ptr && (vga_ptr+i)->key; i++){
*(vgain_ptr+i) = ((probe->index == 0) ? (vga_ptr+i)->vgain0 : (vga_ptr+i)->vgain1) >> 8;
}
ret = command_wr_reg(usb->devhdl, bmEEWP, EEWP_ADDR);
if (ret == SR_OK)
ret = command_wr_nvm(usb->devhdl, (unsigned char *)&zero_info, sizeof(struct cmd_zero_info));
if (ret == SR_OK)
ret = command_wr_nvm(usb->devhdl, (unsigned char *)&vga_info, sizeof(struct cmd_vga_info));
if (ret == SR_OK)
ret = command_wr_reg(usb->devhdl, bmZERO, EEWP_ADDR);
if (ret != SR_OK)
sr_err("DSO channel %d Set Zero command failed!", probe->index);
const double slope = (probe->comb_diff_bom - probe->comb_diff_top)/(2.0*255.0);
for (i = 0; i < 256; i++) {
ret = command_wr_reg(usb->devhdl, i, COMB_ADDR + probe->index*2);
int value = i+i*slope+probe->comb_diff_top*0.5+0.5;
value = (value < 0) ? 0 :
(value > 255) ? 255 : value;
ret = command_wr_reg(usb->devhdl, value, COMB_ADDR + probe->index*2 + 1);
}
}
}
} else if (id == SR_CONF_VOCM) {
const uint8_t vocm = g_variant_get_byte(data);
ret = command_wr_reg(usb->devhdl, vocm, COMB_ADDR+4);
} else if (id == SR_CONF_VGAIN) {
const uint64_t vgain = g_variant_get_uint64(data) << 8;
int i;
struct DSL_vga *vga_ptr = get_vga_ptr(sdi);
for (i = 0; vga_ptr && (vga_ptr+i)->key; i++) {
if ((vga_ptr+i)->key == ch->vdiv) {
if (ch->index == 0)
(vga_ptr+i)->vgain0 = vgain;
else if (ch->index == 1)
(vga_ptr+i)->vgain1 = vgain;
}
}
ret = command_dso_ctrl(usb->devhdl, dso_cmd_gen(sdi, ch, SR_CONF_VDIV));
if (ret == SR_OK)
sr_dbg("%s: setting VDIV of channel %d to %d mv",
__func__, ch->index, ch->vdiv);
else
sr_dbg("%s: setting VDIV of channel %d to %d mv failed",
__func__, ch->index, ch->vdiv);
} else if (id == SR_CONF_VOFF) {
uint16_t voff = g_variant_get_uint16(data);
if (strcmp(sdi->model, "DSCope") == 0) {
double voltage_off = (2.0 * voff / CALI_VOFF_RANGE - 1) * ch->vdiv;
double trans_coarse = (ch->vdiv < 500) ? (ch->vpos_trans >> 8)/DSCOPE_TRANS_CMULTI : (ch->vpos_trans >> 8);
double trans_fine = (ch->vdiv < 500) ? (ch->vpos_trans & 0x00ff) / 1000.0 : (ch->vpos_trans & 0x00ff) / DSCOPE_TRANS_FMULTI;
uint16_t default_voff = get_default_voff(sdi, ch->index);
int voff_coarse = floor(voltage_off / trans_coarse + 0.5);
int voff_fine = floor(-(voltage_off - voff_coarse*trans_coarse)/trans_fine + 0.5);
voff_coarse = (default_voff >> 10) + voff_coarse;
voff_fine = (default_voff&0x03ff) + voff_fine;
voff = (voff_coarse << 10) + voff_fine;
}
int i;
struct DSL_vga *vga_ptr = get_vga_ptr(sdi);
for (i = 0; vga_ptr && (vga_ptr+i)->key; i++) {
if ((vga_ptr+i)->key == ch->vdiv) {
if (ch->index == 0)
(vga_ptr+i)->voff0 = voff;
else if (ch->index == 1)
(vga_ptr+i)->voff1 = voff;
}
}
ret = command_dso_ctrl(usb->devhdl, dso_cmd_gen(sdi, ch, SR_CONF_VPOS));
if (ret == SR_OK)
sr_dbg("%s: setting VPOS of channel %d to %lf mv",
__func__, ch->index, ch->vpos);
else
sr_dbg("%s: setting VPOS of channel %d to %lf mv failed",
__func__, ch->index, ch->vpos);
}else {
ret = SR_ERR_NA;
}
return ret;
}
static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi,
const struct sr_channel_group *cg)
{
GVariant *gvar;
GVariantBuilder gvb;
(void)sdi;
(void)cg;
switch (key) {
case SR_CONF_SCAN_OPTIONS:
// *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
// hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t));
*data = g_variant_new_from_data(G_VARIANT_TYPE("ai"),
hwopts, ARRAY_SIZE(hwopts)*sizeof(int32_t), TRUE, NULL, NULL);
break;
case SR_CONF_DEVICE_OPTIONS:
// *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
// hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t));
*data = g_variant_new_from_data(G_VARIANT_TYPE("ai"),
hwcaps, ARRAY_SIZE(hwcaps)*sizeof(int32_t), TRUE, NULL, NULL);
break;
case SR_CONF_DEVICE_CONFIGS:
// *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
// hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t));
*data = g_variant_new_from_data(G_VARIANT_TYPE("ai"),
hwoptions, ARRAY_SIZE(hwoptions)*sizeof(int32_t), TRUE, NULL, NULL);
break;
case SR_CONF_DEVICE_SESSIONS:
*data = g_variant_new_from_data(G_VARIANT_TYPE("ai"),
sessions, ARRAY_SIZE(sessions)*sizeof(int32_t), TRUE, NULL, NULL);
break;
case SR_CONF_SAMPLERATE:
g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
// gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), samplerates,
// ARRAY_SIZE(samplerates), sizeof(uint64_t));
gvar = g_variant_new_from_data(G_VARIANT_TYPE("at"),
samplerates, ARRAY_SIZE(samplerates)*sizeof(uint64_t), TRUE, NULL, NULL);
g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar);
*data = g_variant_builder_end(&gvb);
break;
case SR_CONF_LIMIT_SAMPLES:
g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
gvar = g_variant_new_from_data(G_VARIANT_TYPE("at"),
samplecounts, ARRAY_SIZE(samplecounts)*sizeof(uint64_t), TRUE, NULL, NULL);
g_variant_builder_add(&gvb, "{sv}", "samplecounts", gvar);
*data = g_variant_builder_end(&gvb);
break;
case SR_CONF_TRIGGER_TYPE:
*data = g_variant_new_string(TRIGGER_TYPE);
break;
case SR_CONF_OPERATION_MODE:
*data = g_variant_new_strv(opmodes, opmodes_show_count);
break;
case SR_CONF_THRESHOLD:
*data = g_variant_new_strv(thresholds, ARRAY_SIZE(thresholds));
break;
case SR_CONF_FILTER:
*data = g_variant_new_strv(filters, ARRAY_SIZE(filters));
break;
default:
return SR_ERR_NA;
}
return SR_OK;
}
static int dso_init(const struct sr_dev_inst *sdi)
{
int ret;
GSList *l;
struct sr_usb_dev_inst *usb = sdi->conn;
for(l = sdi->channels; l; l = l->next) {
struct sr_channel *probe = (struct sr_channel *)l->data;
ret = command_dso_ctrl(usb->devhdl, dso_cmd_gen(sdi, probe, SR_CONF_COUPLING));
if (ret != SR_OK) {
sr_err("DSO set coupling of channel %d command failed!", probe->index);
return ret;
}
ret = command_dso_ctrl(usb->devhdl, dso_cmd_gen(sdi, probe, SR_CONF_VDIV));
if (ret != SR_OK) {
sr_err("Set VDIV of channel %d command failed!", probe->index);
return ret;
}
ret = command_dso_ctrl(usb->devhdl, dso_cmd_gen(sdi, probe, SR_CONF_VPOS));
if (ret != SR_OK) {
sr_err("Set VPOS of channel %d command failed!", probe->index);
return ret;
}
}
ret = command_dso_ctrl(usb->devhdl, dso_cmd_gen(sdi, 0, SR_CONF_SAMPLERATE));
if (ret != SR_OK) {
sr_err("Set Sample Rate command failed!");
return ret;
}
ret = command_dso_ctrl(usb->devhdl, dso_cmd_gen(sdi, NULL, SR_CONF_HORIZ_TRIGGERPOS));
if (ret != SR_OK) {
sr_err("Set Horiz Trigger Position command failed!");
return ret;
}
ret = command_dso_ctrl(usb->devhdl, dso_cmd_gen(sdi, NULL, SR_CONF_TRIGGER_HOLDOFF));
if (ret != SR_OK) {
sr_err("Set Trigger Holdoff Time command failed!");
return ret;
}
ret = command_dso_ctrl(usb->devhdl, dso_cmd_gen(sdi, NULL, SR_CONF_TRIGGER_SLOPE));
if (ret != SR_OK) {
sr_err("Set Trigger Slope command failed!");
return ret;
}
ret = command_dso_ctrl(usb->devhdl, dso_cmd_gen(sdi, NULL, SR_CONF_TRIGGER_SOURCE));
if (ret != SR_OK) {
sr_err("Set Trigger Source command failed!");
return ret;
}
ret = command_dso_ctrl(usb->devhdl, dso_cmd_gen(sdi, NULL, SR_CONF_TRIGGER_VALUE));
if (ret != SR_OK) {
sr_err("Set Trigger Value command failed!");
return ret;
}
ret = command_dso_ctrl(usb->devhdl, dso_cmd_gen(sdi, NULL, SR_CONF_TRIGGER_MARGIN));
if (ret != SR_OK) {
sr_err("Set Trigger Margin command failed!");
return ret;
}
return ret;
}
static int dso_zero(const struct sr_dev_inst *sdi, struct sr_status mstatus)
{
struct DSL_context *devc = sdi->priv;
struct sr_usb_dev_inst *usb = sdi->conn;
GSList *l;
int ret;
static double vpos_back[2];
static uint64_t vdiv_back[2];
struct DSL_vga *vga_ptr = get_vga_ptr(sdi);
struct sr_channel *probe0 = NULL, *probe1 = NULL;
for(l = sdi->channels; l; l = l->next) {
struct sr_channel *probe = (struct sr_channel *)l->data;
if (probe->index == 0)
probe0 = probe;
if (probe->index == 1)
probe1 = probe;
}
if (devc->zero_stage == -1) {
// initialize before Auto Calibration
if (dso_init(sdi) == SR_OK)
devc->zero_stage = 0;
} else if ((vga_ptr+devc->zero_stage)->key == 0) {
ret = SR_OK;
if (strcmp(sdi->model, "DSCope20") == 0) {
if (devc->zero_pcnt == 0) {
devc->zero_comb = 0;
vpos_back[0] = probe0->vpos;
probe0->vpos = (vga_ptr+devc->zero_stage-1)->key * -4.8;
vdiv_back[0] = probe0->vdiv;
probe0->vdiv = (vga_ptr+devc->zero_stage-1)->key;
ret = command_dso_ctrl(usb->devhdl, dso_cmd_gen(sdi, probe0, SR_CONF_VPOS));
} else if (devc->zero_pcnt == 4) {
const double voff = 255*0.98 - (mstatus.ch0_max + mstatus.ch0_min) / 2.0;
if (abs(voff) < 0.5) {
probe0->vpos = vpos_back[0];
} else {
probe0->vpos_trans += voff;
ret = command_dso_ctrl(usb->devhdl, dso_cmd_gen(sdi, probe0, SR_CONF_VPOS));
devc->zero_pcnt = 1;
}
} else if (devc->zero_pcnt == 5) {
devc->zero_comb = 0;
vpos_back[1] = probe1->vpos;
probe1->vpos = (vga_ptr+devc->zero_stage-1)->key * -4.8;
vdiv_back[1] = probe1->vdiv;
probe1->vdiv = (vga_ptr+devc->zero_stage-1)->key;
ret = command_dso_ctrl(usb->devhdl, dso_cmd_gen(sdi, probe1, SR_CONF_VPOS));
} else if (devc->zero_pcnt == 9) {
const double voff = 255*0.98 - (mstatus.ch1_max + mstatus.ch1_min) / 2.0;
if (abs(voff) < 0.5) {
probe1->vpos = vpos_back[1];
} else {
probe1->vpos_trans += voff;
ret = command_dso_ctrl(usb->devhdl, dso_cmd_gen(sdi, probe1, SR_CONF_VPOS));
devc->zero_pcnt = 6;
}
}
}
if (devc->zero_pcnt == 10) {
ret = command_wr_reg(usb->devhdl, 0b1101, COMB_ADDR+6);
devc->zero_comb = 0;
vpos_back[0] = probe0->vpos;
probe0->vpos = (vga_ptr+devc->zero_stage-1)->key * 4.5;
ret = command_dso_ctrl(usb->devhdl, dso_cmd_gen(sdi, probe0, SR_CONF_VPOS));
} else if (devc->zero_pcnt == 15) {
probe0->comb_diff_top = (mstatus.ch0_max - mstatus.ch1_max) +
(mstatus.ch0_min - mstatus.ch1_min);
probe0->vpos = (vga_ptr+devc->zero_stage-1)->key * -4.5;
ret = command_dso_ctrl(usb->devhdl, dso_cmd_gen(sdi, probe0, SR_CONF_VPOS));
} else if (devc->zero_pcnt == 20) {
probe0->comb_diff_bom = (mstatus.ch0_max - mstatus.ch1_max) +
(mstatus.ch0_min - mstatus.ch1_min);
probe0->vpos = vpos_back[0];
ret = command_dso_ctrl(usb->devhdl, dso_cmd_gen(sdi, probe0, SR_CONF_VPOS));
}
if (devc->zero_pcnt == 25) {
ret = command_wr_reg(usb->devhdl, 0b1110, COMB_ADDR+6);
devc->zero_comb = 1;
vpos_back[1] = probe1->vpos;
probe1->vpos = (vga_ptr+devc->zero_stage-1)->key * 4.5;
ret = command_dso_ctrl(usb->devhdl, dso_cmd_gen(sdi, probe1, SR_CONF_VPOS));
} else if (devc->zero_pcnt == 30) {
probe1->comb_diff_top = (mstatus.ch1_max - mstatus.ch0_max) +
(mstatus.ch1_min - mstatus.ch0_min);
probe1->vpos = (vga_ptr+devc->zero_stage-1)->key * -4.5;
ret = command_dso_ctrl(usb->devhdl, dso_cmd_gen(sdi, probe1, SR_CONF_VPOS));
} else if (devc->zero_pcnt == 35) {
probe1->comb_diff_bom = (mstatus.ch1_max - mstatus.ch0_max) +
(mstatus.ch1_min - mstatus.ch0_min);
probe1->vpos = vpos_back[1];
ret = command_dso_ctrl(usb->devhdl, dso_cmd_gen(sdi, probe1, SR_CONF_VPOS));
}
if (devc->zero_pcnt == 40) {
if (strcmp(sdi->model, "DSCope20") == 0) {
probe0->vdiv = vdiv_back[0];
probe1->vdiv = vdiv_back[1];
}
ret = command_wr_reg(usb->devhdl, 0b0011, COMB_ADDR+6);
devc->zero = FALSE;
dso_init(sdi);
}
if (ret == SR_OK)
devc->zero_pcnt++;
} else {
if (devc->zero_pcnt == 0) {
for(l = sdi->channels; l; l = l->next) {
struct sr_channel *probe = (struct sr_channel *)l->data;
uint64_t vdiv_back = probe->vdiv;
probe->vdiv = (vga_ptr+devc->zero_stage)->key;
ret = command_dso_ctrl(usb->devhdl, dso_cmd_gen(sdi, probe, SR_CONF_VDIV));
ret = command_dso_ctrl(usb->devhdl, dso_cmd_gen(sdi, probe, SR_CONF_VPOS));
probe->vdiv = vdiv_back;
}
}
if (devc->zero_pcnt == 4) {
const double voff0 = 255/2.0 - (mstatus.ch0_max + mstatus.ch0_min)/2.0;
const double voff1 = 255/2.0 - (mstatus.ch1_max + mstatus.ch1_min)/2.0;
if (abs(voff0) < 0.5 && abs(voff1) < 0.5) {
devc->zero_stage++;
} else {
if (strcmp(sdi->model, "DSCope") == 0) {
for(l = sdi->channels; l; l = l->next) {
struct sr_channel *probe = (struct sr_channel *)l->data;
double trans_coarse = ((vga_ptr+devc->zero_stage)->key < 500) ? (probe->vpos_trans >> 8)/DSCOPE_TRANS_CMULTI : (probe->vpos_trans >> 8);
double trans_fine = ((vga_ptr+devc->zero_stage)->key < 500) ? (probe->vpos_trans & 0x00ff) / 1000.0 : (probe->vpos_trans & 0x00ff) / DSCOPE_TRANS_FMULTI;
double voltage_off = ((probe->index == 0) ? voff0 : voff1) * (vga_ptr+devc->zero_stage)->key * 10 / 255.0;
uint16_t last_voff = ((probe->index == 0) ? (vga_ptr+devc->zero_stage)->voff0 : (vga_ptr+devc->zero_stage)->voff1);
int voff_coarse = floor(voltage_off / trans_coarse + 0.5);
int voff_fine = floor(-(voltage_off - voff_coarse*trans_coarse)/trans_fine + 0.5);
voff_coarse = (last_voff >> 10) + voff_coarse;
voff_fine = (last_voff&0x03ff) + voff_fine;
if (probe->index == 0)
(vga_ptr+devc->zero_stage)->voff0 = (voff_coarse << 10) + voff_fine;
else if (probe->index == 1)
(vga_ptr+devc->zero_stage)->voff1 = (voff_coarse << 10) + voff_fine;
}
} else if (strcmp(sdi->model, "DSCope20") == 0) {
(vga_ptr+devc->zero_stage)->voff0 += voff0;
(vga_ptr+devc->zero_stage)->voff1 += voff1;
}
}
devc->zero_pcnt = 0;
} else {
devc->zero_pcnt++;
}
}
return ret;
}
static int dev_open(struct sr_dev_inst *sdi)
{
struct sr_usb_dev_inst *usb;
struct DSL_context *devc;
int ret;
uint8_t hw_info;
GSList *l;
gboolean zeroed;
gboolean fpga_done;
devc = sdi->priv;
usb = sdi->conn;
/*
* If the firmware was recently uploaded, no dev_open operation should be called.
* Just wait for renumerate -> detach -> attach
*/
ret = SR_ERR;
if (devc->fw_updated > 0) {
return SR_ERR;
} else {
sr_info("%s: Firmware upload was not needed.", __func__);
ret = DSCope_dev_open(sdi);
}
if (ret != SR_OK) {
sr_err("%s: Unable to open device.", __func__);
return SR_ERR;
}
ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE);
if (ret != 0) {
switch(ret) {
case LIBUSB_ERROR_BUSY:
sr_err("%s: Unable to claim USB interface. Another "
"program or driver has already claimed it.", __func__);
break;
case LIBUSB_ERROR_NO_DEVICE:
sr_err("%s: Device has been disconnected.", __func__);
break;
default:
sr_err("%s: Unable to claim interface: %s.",
__func__, libusb_error_name(ret));
break;
}
return SR_ERR;
}
ret = command_get_hw_info(usb->devhdl, &hw_info);
if (ret != SR_OK) {
sr_err("Failed to get hardware infos.");
return SR_ERR;
}
fpga_done = (hw_info & 0x80) != 0;
if (sdi->status == SR_ST_ACTIVE && !fpga_done) {
if ((ret = command_fpga_config(usb->devhdl)) != SR_OK) {
sr_err("%s: Send FPGA configure command failed!", __func__);
} else {
/* Takes >= 10ms for the FX2 to be ready for FPGA configure. */
g_usleep(10 * 1000);
char *fpga_bit = malloc(strlen(DS_RES_PATH)+strlen(devc->profile->fpga_bit33)+1);
if (fpga_bit == NULL)
return SR_ERR_MALLOC;
strcpy(fpga_bit, DS_RES_PATH);
strcat(fpga_bit, devc->profile->fpga_bit33);
ret = fpga_config(usb->devhdl, fpga_bit);
if (ret != SR_OK) {
sr_err("%s: Configure FPGA failed!", __func__);
}
g_free(fpga_bit);
}
}
// load zero informations
if (sdi->mode == DSO) {
for(l = sdi->channels; l; l = l->next) {
struct sr_channel *probe = (struct sr_channel *)l->data;
zeroed = dso_load_eep(sdi, probe, fpga_done);
if (!zeroed)
break;
}
if (!zeroed) {
config_set(SR_CONF_ZERO, g_variant_new_boolean(TRUE), sdi, NULL, NULL);
sr_info("Zero have not been setted!");
}
if (!fpga_done)
dso_init(sdi);
}
return SR_OK;
}
static int dev_close(struct sr_dev_inst *sdi)
{
struct sr_usb_dev_inst *usb;
usb = sdi->conn;
if (usb->devhdl == NULL)
return SR_ERR;
sr_info("DSCope: Closing device %d on %d.%d interface %d.",
sdi->index, usb->bus, usb->address, USB_INTERFACE);
libusb_release_interface(usb->devhdl, USB_INTERFACE);
libusb_close(usb->devhdl);
usb->devhdl = NULL;
sdi->status = SR_ST_INACTIVE;
return SR_OK;
}
static int cleanup(void)
{
int ret;
struct drv_context *drvc;
if (!(drvc = di->priv))
return SR_OK;
ret = dev_clear();
g_free(drvc);
di->priv = NULL;
return ret;
}
static void remove_sources(struct DSL_context *devc)
{
int i;
sr_err("%s: remove fds from polling", __func__);
/* Remove fds from polling. */
for (i = 0; devc->usbfd[i] != -1; i++)
sr_source_remove(devc->usbfd[i]);
g_free(devc->usbfd);
}
static void finish_acquisition(struct DSL_context *devc)
{
struct sr_datafeed_packet packet;
sr_err("%s: send SR_DF_END packet", __func__);
/* Terminate session. */
packet.type = SR_DF_END;
packet.status = SR_PKT_OK;
sr_session_send(devc->cb_data, &packet);
if (devc->num_transfers != 0) {
devc->num_transfers = 0;
g_free(devc->transfers);
}
devc->status = DSL_FINISH;
}
static void free_transfer(struct libusb_transfer *transfer)
{
struct DSL_context *devc;
unsigned int i;
devc = transfer->user_data;
g_free(transfer->buffer);
transfer->buffer = NULL;
libusb_free_transfer(transfer);
for (i = 0; i < devc->num_transfers; i++) {
if (devc->transfers[i] == transfer) {
devc->transfers[i] = NULL;
break;
}
}
devc->submitted_transfers--;
if (devc->submitted_transfers == 0 && devc->status != DSL_TRIGGERED)
finish_acquisition(devc);
}
static void resubmit_transfer(struct libusb_transfer *transfer)
{
int ret;
if ((ret = libusb_submit_transfer(transfer)) == LIBUSB_SUCCESS)
return;
free_transfer(transfer);
/* TODO: Stop session? */
sr_err("%s: %s", __func__, libusb_error_name(ret));
}
static void receive_transfer(struct libusb_transfer *transfer)
{
struct sr_datafeed_packet packet;
struct sr_datafeed_logic logic;
struct sr_datafeed_dso dso;
struct sr_datafeed_analog analog;
uint8_t *cur_buf = transfer->buffer;
struct DSL_context *devc = transfer->user_data;
struct sr_dev_inst *sdi = devc->cb_data;
const int sample_width = 2;
int cur_sample_count = transfer->actual_length / sample_width;
unsigned int i;
if (devc->data_lock) {
resubmit_transfer(transfer);
return;
}
if (devc->abort)
devc->status = DSL_STOP;
sr_info("receive_transfer(): status %d; timeout %d; received %d bytes.",
transfer->status, transfer->timeout, transfer->actual_length);
switch (transfer->status) {
case LIBUSB_TRANSFER_COMPLETED:
case LIBUSB_TRANSFER_TIMED_OUT: /* We may have received some data though. */
break;
default:
devc->status = DSL_ERROR;
break;
}
packet.status = SR_PKT_OK;
if (devc->status == DSL_DATA &&
transfer->actual_length != 0) {
// check packet type
if (sdi->mode == LOGIC) {
packet.type = SR_DF_LOGIC;
packet.payload = &logic;
logic.length = transfer->actual_length;
logic.data_error = 0;
logic.data = cur_buf;
} else if (sdi->mode == DSO) {
if (!devc->instant) {
const uint32_t mstatus_offset = devc->limit_samples / (g_slist_length(sdi->channels)/en_ch_num(sdi));
mstatus.pkt_id = *((const uint16_t*)cur_buf + mstatus_offset);
mstatus.ch0_max = *((const uint8_t*)cur_buf + mstatus_offset*2 + 1*2);
mstatus.ch0_min = *((const uint8_t*)cur_buf + mstatus_offset*2 + 3);
mstatus.ch0_period = *((const uint32_t*)cur_buf + mstatus_offset/2 + 2/2);
mstatus.ch0_period += ((uint64_t)*((const uint32_t*)cur_buf + mstatus_offset/2 + 4/2)) << 32;
mstatus.ch0_pcnt = *((const uint32_t*)cur_buf + mstatus_offset/2 + 6/2);
mstatus.ch1_max = *((const uint8_t*)cur_buf + mstatus_offset*2 + 9*2);
mstatus.ch1_min = *((const uint8_t*)cur_buf + mstatus_offset*2 + 19);
mstatus.ch1_period = *((const uint32_t*)cur_buf + mstatus_offset/2 + 10/2);
mstatus.ch1_period += ((uint64_t)*((const uint32_t*)cur_buf + mstatus_offset/2 + 12/2)) << 32;
mstatus.ch1_pcnt = *((const uint32_t*)cur_buf + mstatus_offset/2 + 14/2);
mstatus.vlen = *((const uint32_t*)cur_buf + mstatus_offset/2 + 16/2) & 0x7fffffff;
mstatus.stream_mode = *((const uint32_t*)cur_buf + mstatus_offset/2 + 16/2) & 0x80000000;
mstatus.sample_divider = *((const uint32_t*)cur_buf + mstatus_offset/2 + 18/2) & 0x0fffffff;
mstatus.sample_divider_tog = *((const uint32_t*)cur_buf + mstatus_offset/2 + 18/2) & 0x80000000;
mstatus.trig_flag = *((const uint32_t*)cur_buf + mstatus_offset/2 + 18/2) & 0x40000000;
} else {
mstatus.vlen = instant_buffer_size;
}
const uint32_t divider = devc->zero ? 0x1 : (uint32_t)ceil(DSCOPE_MAX_SAMPLERATE * 1.0 / devc->cur_samplerate / en_ch_num(sdi));
if ((mstatus.pkt_id == DSO_PKTID &&
mstatus.sample_divider == divider &&
mstatus.vlen != 0 &&
mstatus.vlen <= (transfer->actual_length - 512) / sample_width) ||
devc->instant) {
devc->roll = (mstatus.stream_mode != 0);
devc->mstatus_valid = devc->instant ? FALSE : TRUE;
packet.type = SR_DF_DSO;
packet.payload = &dso;
dso.probes = sdi->channels;
//dso.num_samples = (transfer->actual_length - 512) / sample_width;
cur_sample_count = 2 * mstatus.vlen / en_ch_num(sdi) ;
dso.num_samples = cur_sample_count;
dso.mq = SR_MQ_VOLTAGE;
dso.unit = SR_UNIT_VOLT;
dso.mqflags = SR_MQFLAG_AC;
dso.samplerate_tog = (mstatus.sample_divider_tog != 0);
dso.trig_flag = (mstatus.trig_flag != 0);
dso.data = cur_buf;
} else {
packet.type = SR_DF_DSO;
packet.status = SR_PKT_DATA_ERROR;
devc->mstatus_valid = FALSE;
}
} else {
packet.type = SR_DF_ANALOG;
packet.payload = &analog;
analog.probes = sdi->channels;
analog.num_samples = (transfer->actual_length / sample_width)/g_slist_length(analog.probes);
analog.mq = SR_MQ_VOLTAGE;
analog.unit = SR_UNIT_VOLT;
analog.mqflags = SR_MQFLAG_AC;
analog.data = (float *)cur_buf;
}
if (devc->limit_samples) {
const uint64_t remain_length= (devc->limit_samples - devc->num_samples) * sample_width;
logic.length = min(logic.length, remain_length);
/* in test mode, check data content*/
if (devc->op_mode == SR_OP_INTERNAL_TEST) {
//for (i = 0; i < logic.length / sample_width; i++) {
for (i = 0; i < logic.length / 2; i++) {
// const uint16_t cur_sample = devc->sample_wide ?
// *((const uint16_t*)cur_buf + i) :
// *((const uint8_t*)cur_buf + i);
const uint16_t cur_sample = *((const uint16_t*)cur_buf + i);
if (test_init == 1) {
test_sample_value = cur_sample;
test_init = 0;
}
if (cur_sample != test_sample_value) {
logic.data_error = 1;
sr_err("exp: %d; act: %d", test_sample_value, cur_sample);
break;
}
test_sample_value++;
}
}
if (devc->op_mode == SR_OP_EXTERNAL_TEST) {
for (i = 0; i < logic.length / 2; i++) {
const uint16_t cur_sample = *((const uint16_t*)cur_buf + i);
if (test_init == 1) {
test_sample_value = cur_sample;
test_init = 0;
}
if (cur_sample != test_sample_value) {
logic.data_error = 1;
sr_err("exp: %d; act: %d", test_sample_value, cur_sample);
break;
}
test_sample_value = (test_sample_value + 1) % 65001;
//test_sample_value = test_sample_value + 1;
}
}
/* send data to session bus */
if (packet.status != SR_PKT_DATA_ERROR)
sr_session_send(sdi, &packet);
}
devc->num_samples += cur_sample_count;
if ((sdi->mode == LOGIC || devc->instant) &&
devc->limit_samples &&
devc->num_samples >= devc->limit_samples) {
devc->status = DSL_STOP;
}
}
if (devc->status == DSL_DATA)
resubmit_transfer(transfer);
else
free_transfer(transfer);
}
static unsigned int to_bytes_per_ms(struct DSL_context *devc)
{
if (devc->cur_samplerate > SR_MHZ(100))
return SR_MHZ(100) / 1000 * (devc->sample_wide ? 2 : 1);
else
return devc->cur_samplerate / 1000 * (devc->sample_wide ? 2 : 1);
}
static size_t get_buffer_size(struct DSL_context *devc)
{
size_t s;
/*
* The buffer should be large enough to hold 10ms of data and
* a multiple of 512.
*/
s = single_buffer_time * to_bytes_per_ms(devc);
//s = to_bytes_per_ms(devc->cur_samplerate);
return (s + 511) & ~511;
}
static unsigned int get_number_of_transfers(struct DSL_context *devc)
{
unsigned int n;
size_t total_size;
total_size = min(devc->limit_samples * (devc->sample_wide ? 2 : 1),
total_buffer_time * to_bytes_per_ms(devc));
/* Total buffer size should be able to hold about 500ms of data. */
//n = 500 * to_bytes_per_ms(devc) / get_buffer_size(devc);
n = ceil(total_size * 1.0f / get_buffer_size(devc));
if (n > NUM_SIMUL_TRANSFERS)
return NUM_SIMUL_TRANSFERS;
return n;
//return 1;
}
static unsigned int get_timeout(struct DSL_context *devc)
{
size_t total_size;
unsigned int timeout;
total_size = get_buffer_size(devc) * get_number_of_transfers(devc);
timeout = total_size / to_bytes_per_ms(devc);
//return timeout + timeout / 4; /* Leave a headroom of 25% percent. */
return timeout * 4;
}
static int dev_transfer_start(const struct sr_dev_inst *sdi)
{
struct DSL_context *devc;
struct sr_usb_dev_inst *usb;
struct libusb_transfer *transfer;
unsigned int i, num_transfers;
int ret;
unsigned char *buf;
size_t size;
int dso_buffer_size;
devc = sdi->priv;
usb = sdi->conn;
#ifndef _WIN32
num_transfers = 1;
#else
num_transfers = buffer_cnt;
#endif
if (devc->instant)
dso_buffer_size = instant_buffer_size * g_slist_length(sdi->channels);
else
dso_buffer_size = devc->limit_samples * en_ch_num(sdi) + 512;
size = (sdi->mode == ANALOG) ? cons_buffer_size : ((sdi->mode == DSO) ? dso_buffer_size : buffer_size);
devc->submitted_transfers = 0;
devc->transfers = g_try_malloc0(sizeof(*devc->transfers) * num_transfers);
if (!devc->transfers) {
sr_err("%s: USB transfers malloc failed.", __func__);
return SR_ERR_MALLOC;
}
for (i = 0; i < num_transfers; i++) {
if (!(buf = g_try_malloc(size))) {
sr_err("%s: USB transfer buffer malloc failed.", __func__);
return SR_ERR_MALLOC;
}
transfer = libusb_alloc_transfer(0);
libusb_fill_bulk_transfer(transfer, usb->devhdl,
6 | LIBUSB_ENDPOINT_IN, buf, size,
receive_transfer, devc, 0);
if ((ret = libusb_submit_transfer(transfer)) != 0) {
sr_err("%s: Failed to submit transfer: %s.",
__func__, libusb_error_name(ret));
libusb_free_transfer(transfer);
g_free(buf);
devc->status = DSL_ERROR;
devc->abort = TRUE;
return SR_ERR;
}
devc->transfers[i] = transfer;
devc->submitted_transfers++;
devc->num_transfers++;
}
devc->status = DSL_DATA;
return SR_OK;
}
static int receive_data(int fd, int revents, const struct sr_dev_inst *sdi)
{
int completed = 0;
struct timeval tv;
struct drv_context *drvc;
struct DSL_context *devc;
(void)fd;
(void)revents;
drvc = di->priv;
devc = sdi->priv;
tv.tv_sec = tv.tv_usec = 0;
libusb_handle_events_timeout_completed(drvc->sr_ctx->libusb_ctx, &tv, &completed);
if (devc->zero) {
dso_zero(sdi, mstatus);
}
if (devc->status == DSL_FINISH) {
remove_sources(devc);
}
return TRUE;
}
static void receive_trigger_pos(struct libusb_transfer *transfer)
{
struct DSL_context *devc;
struct sr_datafeed_packet packet;
struct ds_trigger_pos *trigger_pos;
const struct sr_dev_inst *sdi;
int ret;
packet.status = SR_PKT_OK;
devc = transfer->user_data;
sdi = devc->cb_data;
trigger_pos = (struct ds_trigger_pos *)transfer->buffer;
devc->status = DSL_ERROR;
if (transfer->status == LIBUSB_TRANSFER_COMPLETED &&
trigger_pos->check_id == TRIG_CHECKID) {
sr_info("receive_trigger_pos(): status %d; timeout %d; received %d bytes.",
transfer->status, transfer->timeout, transfer->actual_length);
if (transfer->actual_length == sizeof(struct ds_trigger_pos)) {
packet.type = SR_DF_TRIGGER;
packet.payload = trigger_pos;
sr_session_send(sdi, &packet);
devc->status = DSL_TRIGGERED;
devc->num_transfers = 0;
devc->empty_transfer_count = 0;
}
}
if (devc->status == DSL_TRIGGERED) {
// successfull
free_transfer(transfer);
if ((ret = dev_transfer_start(devc->cb_data)) != SR_OK) {
sr_err("%s: could not start data transfer"
"(%d)%d", __func__, ret, errno);
}
} else if (devc->status == DSL_START) {
// retry
resubmit_transfer(transfer);
} else {
// failed
free_transfer(transfer);
}
}
static int dev_acquisition_start(struct sr_dev_inst *sdi, void *cb_data)
{
(void)cb_data;
struct DSL_context *devc;
struct drv_context *drvc;
struct sr_usb_dev_inst *usb;
struct libusb_transfer *transfer;
struct ds_trigger_pos *trigger_pos;
const struct libusb_pollfd **lupfd;
unsigned int i;
int ret;
test_init = 1;
if (sdi->status != SR_ST_ACTIVE)
return SR_ERR_DEV_CLOSED;
drvc = di->priv;
devc = sdi->priv;
usb = sdi->conn;
//devc->cb_data = cb_data;
devc->cb_data = sdi;
devc->num_samples = 0;
devc->empty_transfer_count = 0;
devc->status = DSL_INIT;
devc->num_transfers = 0;
devc->submitted_transfers = 0;
test_sample_value = 0;
devc->abort = FALSE;
/* Configures devc->trigger_* and devc->sample_wide */
if (configure_probes(sdi) != SR_OK) {
sr_err("%s: Failed to configure probes.", __func__);
return SR_ERR;
}
/* Stop Previous GPIF acquisition */
if ((ret = command_stop_acquisition (usb->devhdl)) != SR_OK) {
sr_err("%s: Stop DSCope acquisition failed!", __func__);
return ret;
} else {
sr_info("%s: Stop Previous DSCope acquisition!", __func__);
}
/* Setting FPGA before acquisition start*/
if ((ret = command_fpga_setting(usb->devhdl, sizeof(struct DSL_setting) / sizeof(uint16_t))) != SR_OK) {
sr_err("%s: Send FPGA setting command failed!", __func__);
} else {
if ((ret = fpga_setting(sdi)) != SR_OK) {
sr_err("%s: Configure FPGA failed!", __func__);
return ret;
}
}
if (devc->zero && devc->zero_stage == -1) {
// initialize before Auto Calibration
if ((ret = dso_init(sdi)) == SR_OK) {
devc->zero_stage = 0;
} else {
sr_err("%s: DSO zero initialization failed!", __func__);
return ret;
}
devc->zero_stage = 0;
}
/*
* settings must be updated before acquisition
*/
if (sdi->mode == DSO) {
devc->trigger_hpos = devc->trigger_hrate * en_ch_num(sdi) * devc->limit_samples / 200.0;
if ((ret = command_dso_ctrl(usb->devhdl, dso_cmd_gen(sdi, NULL, SR_CONF_HORIZ_TRIGGERPOS))) == SR_OK)
sr_dbg("%s: setting DSO Horiz Trigger Position to %d",
__func__, devc->trigger_hpos);
else
sr_dbg("%s: setting DSO Horiz Trigger Position to %d failed",
__func__, devc->trigger_hpos);
}
/* poll trigger status transfer*/
if (!(trigger_pos = g_try_malloc0(sizeof(struct ds_trigger_pos)))) {
sr_err("%s: USB trigger_pos buffer malloc failed.", __func__);
return SR_ERR_MALLOC;
}
devc->transfers = g_try_malloc0(sizeof(*devc->transfers));
if (!devc->transfers) {
sr_err("%s: USB trigger_pos transfer malloc failed.", __func__);
return SR_ERR_MALLOC;
}
transfer = libusb_alloc_transfer(0);
libusb_fill_bulk_transfer(transfer, usb->devhdl,
6 | LIBUSB_ENDPOINT_IN, (unsigned char*)trigger_pos, sizeof(struct ds_trigger_pos),
receive_trigger_pos, devc, 0);
if ((ret = libusb_submit_transfer(transfer)) != 0) {
sr_err("%s: Failed to submit trigger_pos transfer: %s.",
__func__, libusb_error_name(ret));
libusb_free_transfer(transfer);
g_free(trigger_pos);
return SR_ERR;
} else {
devc->num_transfers++;
devc->transfers[0] = transfer;
devc->submitted_transfers++;
}
/* setup callback function for data transfer */
lupfd = libusb_get_pollfds(drvc->sr_ctx->libusb_ctx);
for (i = 0; lupfd[i]; i++);
if (!(devc->usbfd = g_try_malloc(sizeof(struct libusb_pollfd) * (i + 1))))
return SR_ERR;
for (i = 0; lupfd[i]; i++) {
sr_source_add(lupfd[i]->fd, lupfd[i]->events,
get_timeout(devc), receive_data, sdi);
devc->usbfd[i] = lupfd[i]->fd;
}
devc->usbfd[i] = -1;
free(lupfd);
devc->status = DSL_START;
devc->mstatus_valid = FALSE;
if ((ret = command_start_acquisition (usb->devhdl,
devc->cur_samplerate, devc->sample_wide, (sdi->mode == LOGIC))) != SR_OK) {
devc->status = DSL_ERROR;
devc->abort = TRUE;
return ret;
}
/* Send header packet to the session bus. */
//std_session_send_df_header(cb_data, LOG_PREFIX);
std_session_send_df_header(sdi, LOG_PREFIX);
return SR_OK;
}
static int dev_acquisition_stop(const struct sr_dev_inst *sdi, void *cb_data)
{
(void)cb_data;
struct DSL_context *devc;
struct sr_usb_dev_inst *usb;
int ret;
devc = sdi->priv;
usb = sdi->conn;
if (!devc->abort) {
devc->abort = TRUE;
command_wr_reg(usb->devhdl, bmFORCE_RDY, EEWP_ADDR);
} else if (devc->status == DSL_FINISH) {
/* Stop GPIF acquisition */
if ((ret = command_stop_acquisition (usb->devhdl)) != SR_OK)
sr_err("%s: Sent acquisition stop command failed!", __func__);
else
sr_info("%s: Sent acquisition stop command!", __func__);
}
return SR_OK;
}
static int dev_status_get(const struct sr_dev_inst *sdi, struct sr_status *status, int begin, int end)
{
int ret = SR_ERR;
if (sdi) {
struct DSL_context *devc;
struct sr_usb_dev_inst *usb;
devc = sdi->priv;
usb = sdi->conn;
if (devc->status == DSL_START) {
ret = command_get_status(usb->devhdl, (unsigned char*)status, begin, end);
} else if (devc->mstatus_valid) {
*status = mstatus;
ret = SR_OK;
}
}
return ret;
}
SR_PRIV struct sr_dev_driver DSCope_driver_info = {
.name = "DSCope",
.longname = "DSCope (generic driver for DScope oscilloscope)",
.api_version = 1,
.init = init,
.cleanup = cleanup,
.scan = scan,
.dev_list = dev_list,
.dev_mode_list = dev_mode_list,
.dev_clear = dev_clear,
.config_get = config_get,
.config_set = config_set,
.config_list = config_list,
.dev_open = dev_open,
.dev_close = dev_close,
.dev_status_get = dev_status_get,
.dev_acquisition_start = dev_acquisition_start,
.dev_acquisition_stop = dev_acquisition_stop,
.priv = NULL,
};
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