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/*
* This file is part of the libsigrok project.
*
* Copyright (C) 2013 Bert Vermeulen <bert@biot.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 <libusb.h>
#include "command.h"
//#include "libsigrok.h"
#include "libsigrok-internal.h"
#include "dslogic.h"
SR_PRIV int command_get_fw_version(libusb_device_handle *devhdl,
struct version_info *vi)
{
int ret;
ret = libusb_control_transfer(devhdl, LIBUSB_REQUEST_TYPE_VENDOR |
LIBUSB_ENDPOINT_IN, CMD_GET_FW_VERSION, 0x0000, 0x0000,
(unsigned char *)vi, sizeof(struct version_info), 100);
if (ret < 0) {
sr_err("Unable to get version info: %s.",
libusb_error_name(ret));
return SR_ERR;
}
return SR_OK;
}
SR_PRIV int command_get_revid_version(libusb_device_handle *devhdl,
uint8_t *revid)
{
int ret;
ret = libusb_control_transfer(devhdl, LIBUSB_REQUEST_TYPE_VENDOR |
LIBUSB_ENDPOINT_IN, CMD_GET_REVID_VERSION, 0x0000, 0x0000,
revid, 1, 100);
if (ret < 0) {
sr_err("Unable to get REVID: %s.", libusb_error_name(ret));
return SR_ERR;
}
return SR_OK;
}
SR_PRIV int command_start_acquisition(libusb_device_handle *devhdl,
uint64_t samplerate, gboolean samplewide)
{
struct cmd_start_acquisition cmd;
int delay = 0, ret;
/* Compute the sample rate. */
// if (samplewide && samplerate > MAX_16BIT_SAMPLE_RATE) {
// sr_err("Unable to sample at %" PRIu64 "Hz "
// "when collecting 16-bit samples.", samplerate);
// return SR_ERR;
// }
// if ((SR_MHZ(48) % samplerate) == 0) {
// cmd.flags = CMD_START_FLAGS_CLK_48MHZ;
// delay = SR_MHZ(48) / samplerate - 1;
// if (delay > MAX_SAMPLE_DELAY)
// delay = 0;
// }
// if (delay == 0 && (SR_MHZ(30) % samplerate) == 0) {
// cmd.flags = CMD_START_FLAGS_CLK_30MHZ;
// delay = SR_MHZ(30) / samplerate - 1;
// }
cmd.flags = CMD_START_FLAGS_CLK_30MHZ;
delay = 0;
sr_info("GPIF delay = %d, clocksource = %sMHz.", delay,
(cmd.flags & CMD_START_FLAGS_CLK_48MHZ) ? "48" : "30");
// if (delay <= 0 || delay > MAX_SAMPLE_DELAY) {
// sr_err("Unable to sample at %" PRIu64 "Hz.", samplerate);
// return SR_ERR;
// }
cmd.sample_delay_h = (delay >> 8) & 0xff;
cmd.sample_delay_l = delay & 0xff;
/* Select the sampling width. */
cmd.flags |= samplewide ? CMD_START_FLAGS_SAMPLE_16BIT :
CMD_START_FLAGS_SAMPLE_8BIT;
/* Send the control message. */
ret = libusb_control_transfer(devhdl, LIBUSB_REQUEST_TYPE_VENDOR |
LIBUSB_ENDPOINT_OUT, CMD_START, 0x0000, 0x0000,
(unsigned char *)&cmd, sizeof(cmd), 3000);
if (ret < 0) {
sr_err("Unable to send start command: %s.",
libusb_error_name(ret));
return SR_ERR;
}
return SR_OK;
}
SR_PRIV int command_stop_acquisition(libusb_device_handle *devhdl)
{
struct cmd_start_acquisition cmd;
int ret;
/* stop acquisition command */
cmd.flags = CMD_START_FLAGS_STOP;
cmd.sample_delay_h = 0;
cmd.sample_delay_l = 0;
/* Send the control message. */
ret = libusb_control_transfer(devhdl, LIBUSB_REQUEST_TYPE_VENDOR |
LIBUSB_ENDPOINT_OUT, CMD_START, 0x0000, 0x0000,
(unsigned char *)&cmd, sizeof(cmd), 3000);
if (ret < 0) {
sr_err("Unable to send stop command: %s.",
libusb_error_name(ret));
return SR_ERR;
}
return SR_OK;
}
SR_PRIV int command_fpga_config(libusb_device_handle *devhdl)
{
struct cmd_cfg_count cmd;
int ret;
/* ... */
cmd.byte0 = (uint8_t)XC6SLX9_BYTE_CNT;
cmd.byte1 = (uint8_t)(XC6SLX9_BYTE_CNT >> 8);
cmd.byte2 = (uint8_t)(XC6SLX9_BYTE_CNT >> 16);
/* Send the control message. */
ret = libusb_control_transfer(devhdl, LIBUSB_REQUEST_TYPE_VENDOR |
LIBUSB_ENDPOINT_OUT, CMD_CONFIG, 0x0000, 0x0000,
(unsigned char *)&cmd, sizeof(cmd), 3000);
if (ret < 0) {
sr_err("Unable to send FPGA configure command: %s.",
libusb_error_name(ret));
return SR_ERR;
}
return SR_OK;
}
SR_PRIV int command_fpga_setting(libusb_device_handle *devhdl, uint32_t setting_count)
{
struct cmd_setting_count cmd;
int ret;
/* ... */
cmd.byte0 = (uint8_t)setting_count;
cmd.byte1 = (uint8_t)(setting_count >> 8);
cmd.byte2 = (uint8_t)(setting_count >> 16);
/* Send the control message. */
ret = libusb_control_transfer(devhdl, LIBUSB_REQUEST_TYPE_VENDOR |
LIBUSB_ENDPOINT_OUT, CMD_SETTING, 0x0000, 0x0000,
(unsigned char *)&cmd, sizeof(cmd), 3000);
if (ret < 0) {
sr_err("Unable to send FPGA setting command: %s.",
libusb_error_name(ret));
return SR_ERR;
}
return SR_OK;
}
SR_PRIV int command_dso_ctrl(libusb_device_handle *devhdl, uint32_t command)
{
struct cmd_control cmd;
int ret;
/* ... */
cmd.byte0 = (uint8_t)command;
cmd.byte1 = (uint8_t)(command >> 8);
cmd.byte2 = (uint8_t)(command >> 16);
cmd.byte3 = (uint8_t)(command >> 24);
/* Send the control command. */
ret = libusb_control_transfer(devhdl, LIBUSB_REQUEST_TYPE_VENDOR |
LIBUSB_ENDPOINT_OUT, CMD_CONTROL, 0x0000, 0x0000,
(unsigned char *)&cmd, sizeof(cmd), 3000);
if (ret < 0) {
sr_err("Unable to send oscilloscope control command: %s.",
libusb_error_name(ret));
return SR_ERR;
}
return SR_OK;
}
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