baylibre-acme: Initial driver skeleton.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>

Makefile.am

@@ -147,6 +147,12 @@ libsigrok_la_SOURCES += \
 	src/hardware/atten-pps3xxx/protocol.c \
 	src/hardware/atten-pps3xxx/api.c
 endif
+if HW_BAYLIBRE_ACME
+libsigrok_la_SOURCES += \
+	src/hardware/baylibre-acme/protocol.h \
+	src/hardware/baylibre-acme/protocol.c \
+	src/hardware/baylibre-acme/api.c
+endif
 if HW_BEAGLELOGIC
 libsigrok_la_SOURCES += \
 	src/hardware/beaglelogic/beaglelogic.h \

configure.ac

@@ -109,6 +109,7 @@ DRIVER([Agilent DMM], [agilent-dmm])
 DRIVER([Appa 55II], [appa-55ii])
 DRIVER([ASIX SIGMA/SIGMA2], [asix-sigma])
 DRIVER([Atten PPS3xxx], [atten-pps3xxx])
+DRIVER([BayLibre ACME], [baylibre-acme])
 DRIVER([BeagleLogic], [beaglelogic])
 DRIVER([Brymen BM86x], [brymen-bm86x])
 DRIVER([Brymen DMM], [brymen-dmm])
@@ -473,6 +474,7 @@ DRIVER2([HW_AGILENT_DMM], [$HW_AGILENT_DMM], [HAVE_HW_AGILENT_DMM])
 DRIVER2([HW_APPA_55II], [$HW_APPA_55II], [HAVE_HW_APPA_55II])
 DRIVER2([HW_ASIX_SIGMA], [$HW_ASIX_SIGMA], [HAVE_HW_ASIX_SIGMA])
 DRIVER2([HW_ATTEN_PPS3XXX], [$HW_ATTEN_PPS3XXX], [HAVE_HW_ATTEN_PPS3XXX])
+DRIVER2([HW_BAYLIBRE_ACME], [$HW_BAYLIBRE_ACME], [HAVE_HW_BAYLIBRE_ACME])
 DRIVER2([HW_BEAGLELOGIC], [$HW_BEAGLELOGIC], [HAVE_HW_BEAGLELOGIC])
 DRIVER2([HW_BRYMEN_BM86X], [$HW_BRYMEN_BM86X], [HAVE_HW_BRYMEN_BM86X])
 DRIVER2([HW_BRYMEN_DMM], [$HW_BRYMEN_DMM], [HAVE_HW_BRYMEN_DMM])

src/drivers.c

@@ -33,6 +33,9 @@ extern SR_PRIV struct sr_dev_driver asix_sigma_driver_info;
 #ifdef HAVE_HW_ATTEN_PPS3XXX
 extern SR_PRIV struct sr_dev_driver atten_pps3203_driver_info;
 #endif
+#ifdef HAVE_HW_BAYLIBRE_ACME
+extern SR_PRIV struct sr_dev_driver baylibre_acme_driver_info;
+#endif
 #ifdef HAVE_HW_BEAGLELOGIC
 extern SR_PRIV struct sr_dev_driver beaglelogic_driver_info;
 #endif
@@ -229,6 +232,9 @@ SR_PRIV struct sr_dev_driver *drivers_list[] = {
 #ifdef HAVE_HW_ATTEN_PPS3XXX
 	&atten_pps3203_driver_info,
 #endif
+#ifdef HAVE_HW_BAYLIBRE_ACME
+	&baylibre_acme_driver_info,
+#endif
 #ifdef HAVE_HW_BEAGLELOGIC
 	&beaglelogic_driver_info,
 #endif

src/hardware/baylibre-acme/api.c

@@ -0,0 +1,191 @@
+/*
+ * This file is part of the libsigrok project.
+ *
+ * Copyright (C) 2015 Bartosz Golaszewski <bgolaszewski@baylibre.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 "protocol.h"
+
+SR_PRIV struct sr_dev_driver baylibre_acme_driver_info;
+static struct sr_dev_driver *di = &baylibre_acme_driver_info;
+
+static int init(struct sr_context *sr_ctx)
+{
+	return std_init(sr_ctx, di, LOG_PREFIX);
+}
+
+static GSList *scan(GSList *options)
+{
+	struct drv_context *drvc;
+	GSList *devices;
+
+	(void)options;
+
+	devices = NULL;
+	drvc = di->priv;
+	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(void)
+{
+	return ((struct drv_context *)(di->priv))->instances;
+}
+
+static int dev_clear(void)
+{
+	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(void)
+{
+	dev_clear();
+
+	/* 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 baylibre_acme_driver_info = {
+	.name = "baylibre-acme",
+	.longname = "baylibre-acme",
+	.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,
+	.priv = NULL,
+};

src/hardware/baylibre-acme/protocol.c

@@ -0,0 +1,40 @@
+/*
+ * This file is part of the libsigrok project.
+ *
+ * Copyright (C) 2015 Bartosz Golaszewski <bgolaszewski@baylibre.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 "protocol.h"
+
+SR_PRIV int baylibre_acme_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/baylibre-acme/protocol.h

@@ -0,0 +1,44 @@
+/*
+ * This file is part of the libsigrok project.
+ *
+ * Copyright (C) 2015 Bartosz Golaszewski <bgolaszewski@baylibre.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/>.
+ */
+
+#ifndef LIBSIGROK_HARDWARE_BAYLIBRE_ACME_PROTOCOL_H
+#define LIBSIGROK_HARDWARE_BAYLIBRE_ACME_PROTOCOL_H
+
+#include <stdint.h>
+#include <glib.h>
+#include "libsigrok.h"
+#include "libsigrok-internal.h"
+
+#define LOG_PREFIX "baylibre-acme"
+
+/** Private, per-device-instance driver context. */
+struct dev_context {
+	/* Model-specific information */
+
+	/* Acquisition settings */
+
+	/* Operational state */
+
+	/* Temporary state across callbacks */
+
+};
+
+SR_PRIV int baylibre_acme_receive_data(int fd, int revents, void *cb_data);
+
+#endif