gwinstek-gds-800: Initial driver skeleton.

Makefile.am

@@ -262,6 +262,12 @@ libsigrok_la_SOURCES += \
 	src/hardware/gmc-mh-1x-2x/protocol.c \
 	src/hardware/gmc-mh-1x-2x/api.c
 endif
+if HW_GWINSTEK_GDS_800
+libsigrok_la_SOURCES += \
+	src/hardware/gwinstek-gds-800/protocol.h \
+	src/hardware/gwinstek-gds-800/protocol.c \
+	src/hardware/gwinstek-gds-800/api.c
+endif
 if HW_HAMEG_HMO
 libsigrok_la_SOURCES += \
 	src/hardware/hameg-hmo/protocol.h \

configure.ac

@@ -229,6 +229,7 @@ SR_DRIVER([demo], [demo])
 SR_DRIVER([Fluke DMM], [fluke-dmm], [libserialport])
 SR_DRIVER([fx2lafw], [fx2lafw], [libusb])
 SR_DRIVER([GMC MH 1x/2x], [gmc-mh-1x-2x], [libserialport])
+SR_DRIVER([gwinstek gds-800], [gwinstek-gds-800], [libserialport])
 SR_DRIVER([Hameg HMO], [hameg-hmo], [libserialport])
 SR_DRIVER([Hantek DSO], [hantek-dso], [libusb])
 SR_DRIVER([Hung-Chang DSO-2100], [hung-chang-dso-2100], [libieee1284])

src/drivers.c

@@ -78,6 +78,9 @@ extern SR_PRIV struct sr_dev_driver fx2lafw_driver_info;
 extern SR_PRIV struct sr_dev_driver gmc_mh_1x_2x_rs232_driver_info;
 extern SR_PRIV struct sr_dev_driver gmc_mh_2x_bd232_driver_info;
 #endif
+#ifdef HAVE_HW_GWINSTEK_GDS_800
+extern SR_PRIV struct sr_dev_driver gwinstek_gds_800_driver_info;
+#endif
 #ifdef HAVE_HW_HAMEG_HMO
 extern SR_PRIV struct sr_dev_driver hameg_hmo_driver_info;
 #endif
@@ -172,6 +175,9 @@ extern SR_PRIV struct sr_dev_driver zeroplus_logic_cube_driver_info;
 
 SR_PRIV struct sr_dev_driver **drivers_lists[] = {
 #ifdef HAVE_HW_AGILENT_DMM
+#ifdef HAVE_HW_GWINSTEK_GDS_800
+	(DRVS) {&gwinstek_gds_800_driver_info, NULL},
+#endif
 	(DRVS) {&agdmm_driver_info, NULL},
 #endif
 #ifdef HAVE_HW_APPA_55II

src/hardware/gwinstek-gds-800/api.c

@@ -0,0 +1,190 @@
+/*
+ * This file is part of the libsigrok project.
+ *
+ * Copyright (C) 2015 Martin Lederhilger <martin.lederhilger@gmx.at>
+ *
+ * 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 "protocol.h"
+
+SR_PRIV struct sr_dev_driver gwinstek_gds_800_driver_info;
+
+static int init(struct sr_dev_driver *di, struct sr_context *sr_ctx)
+{
+	return std_init(sr_ctx, di, LOG_PREFIX);
+}
+
+static GSList *scan(struct sr_dev_driver *di, GSList *options)
+{
+	struct drv_context *drvc;
+	GSList *devices;
+
+	(void)options;
+
+	devices = NULL;
+	drvc = di->context;
+	drvc->instances = NULL;
+
+	/* TODO: scan for devices, either based on a SR_CONF_CONN option
+	 * or on a USB scan. */
+
+	return devices;
+}
+
+static GSList *dev_list(const struct sr_dev_driver *di)
+{
+	return ((struct drv_context *)(di->context))->instances;
+}
+
+static int dev_clear(const struct sr_dev_driver *di)
+{
+	return std_dev_clear(di, NULL);
+}
+
+static int dev_open(struct sr_dev_inst *sdi)
+{
+	(void)sdi;
+
+	/* TODO: get handle from sdi->conn and open it. */
+
+	sdi->status = SR_ST_ACTIVE;
+
+	return SR_OK;
+}
+
+static int dev_close(struct sr_dev_inst *sdi)
+{
+	(void)sdi;
+
+	/* TODO: get handle from sdi->conn and close it. */
+
+	sdi->status = SR_ST_INACTIVE;
+
+	return SR_OK;
+}
+
+static int cleanup(const struct sr_dev_driver *di)
+{
+	dev_clear(di);
+
+	/* TODO: free other driver resources, if any. */
+
+	return SR_OK;
+}
+
+static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
+		const struct sr_channel_group *cg)
+{
+	int ret;
+
+	(void)sdi;
+	(void)data;
+	(void)cg;
+
+	ret = SR_OK;
+	switch (key) {
+	/* TODO */
+	default:
+		return SR_ERR_NA;
+	}
+
+	return ret;
+}
+
+static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
+		const struct sr_channel_group *cg)
+{
+	int ret;
+
+	(void)data;
+	(void)cg;
+
+	if (sdi->status != SR_ST_ACTIVE)
+		return SR_ERR_DEV_CLOSED;
+
+	ret = SR_OK;
+	switch (key) {
+	/* TODO */
+	default:
+		ret = SR_ERR_NA;
+	}
+
+	return ret;
+}
+
+static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
+		const struct sr_channel_group *cg)
+{
+	int ret;
+
+	(void)sdi;
+	(void)data;
+	(void)cg;
+
+	ret = SR_OK;
+	switch (key) {
+	/* TODO */
+	default:
+		return SR_ERR_NA;
+	}
+
+	return ret;
+}
+
+static int dev_acquisition_start(const struct sr_dev_inst *sdi,
+		void *cb_data)
+{
+	(void)sdi;
+	(void)cb_data;
+
+	if (sdi->status != SR_ST_ACTIVE)
+		return SR_ERR_DEV_CLOSED;
+
+	/* TODO: configure hardware, reset acquisition state, set up
+	 * callbacks and send header packet. */
+
+	return SR_OK;
+}
+
+static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
+{
+	(void)cb_data;
+
+	if (sdi->status != SR_ST_ACTIVE)
+		return SR_ERR_DEV_CLOSED;
+
+	/* TODO: stop acquisition. */
+
+	return SR_OK;
+}
+
+SR_PRIV struct sr_dev_driver gwinstek_gds_800_driver_info = {
+	.name = "gwinstek-gds-800",
+	.longname = "gwinstek gds-800",
+	.api_version = 1,
+	.init = init,
+	.cleanup = cleanup,
+	.scan = scan,
+	.dev_list = dev_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_acquisition_start = dev_acquisition_start,
+	.dev_acquisition_stop = dev_acquisition_stop,
+	.context = NULL,
+};

src/hardware/gwinstek-gds-800/protocol.c

@@ -0,0 +1,40 @@
+/*
+ * This file is part of the libsigrok project.
+ *
+ * Copyright (C) 2015 Martin Lederhilger <martin.lederhilger@gmx.at>
+ *
+ * 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 "protocol.h"
+
+SR_PRIV int gwinstek_gds_800_receive_data(int fd, int revents, void *cb_data)
+{
+	const struct sr_dev_inst *sdi;
+	struct dev_context *devc;
+
+	(void)fd;
+
+	if (!(sdi = cb_data))
+		return TRUE;
+
+	if (!(devc = sdi->priv))
+		return TRUE;
+
+	if (revents == G_IO_IN) {
+		/* TODO */
+	}
+
+	return TRUE;
+}

src/hardware/gwinstek-gds-800/protocol.h

@@ -0,0 +1,44 @@
+/*
+ * This file is part of the libsigrok project.
+ *
+ * Copyright (C) 2015 Martin Lederhilger <martin.lederhilger@gmx.at>
+ *
+ * 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/>.
+ */
+
+#ifndef LIBSIGROK_HARDWARE_GWINSTEK_GDS_800_PROTOCOL_H
+#define LIBSIGROK_HARDWARE_GWINSTEK_GDS_800_PROTOCOL_H
+
+#include <stdint.h>
+#include <glib.h>
+#include "libsigrok.h"
+#include "libsigrok-internal.h"
+
+#define LOG_PREFIX "gwinstek-gds-800"
+
+/** Private, per-device-instance driver context. */
+struct dev_context {
+	/* Model-specific information */
+
+	/* Acquisition settings */
+
+	/* Operational state */
+
+	/* Temporary state across callbacks */
+
+};
+
+SR_PRIV int gwinstek_gds_800_receive_data(int fd, int revents, void *cb_data);
+
+#endif