X-Git-Url: https://sigrok.org/gitweb/?p=libsigrok.git;a=blobdiff_plain;f=hardware%2Flascar-el-usb%2Fapi.c;h=04f844b3318b1d575a4eec0a8f23708e59a162a9;hp=8ebb4ca0d4a3a6ba75aa420e2f31902ce0142e62;hb=43cd4637285833706f8a404ca027bcf0ee75b9ae;hpb=0d485e30c607b22b5f328512327e4e0fafc6cbb7

diff --git a/hardware/lascar-el-usb/api.c b/hardware/lascar-el-usb/api.c
index 8ebb4ca0..04f844b3 100644
--- a/hardware/lascar-el-usb/api.c
+++ b/hardware/lascar-el-usb/api.c
@@ -23,92 +23,42 @@
 #include "libsigrok-internal.h"
 #include "protocol.h"
 
-SR_PRIV struct sr_dev_inst *lascar_scan(int bus, int address);
 SR_PRIV struct sr_dev_driver lascar_el_usb_driver_info;
 static struct sr_dev_driver *di = &lascar_el_usb_driver_info;
-static int hw_dev_close(struct sr_dev_inst *sdi);
 
-static const int hwopts[] = {
+static const int32_t hwopts[] = {
 	SR_CONF_CONN,
-	0,
 };
 
-static const int hwcaps[] = {
+static const int32_t hwcaps[] = {
 	SR_CONF_THERMOMETER,
 	SR_CONF_HYGROMETER,
+	SR_CONF_DATALOG,
 	SR_CONF_LIMIT_SAMPLES,
-	0
 };
 
-/* Properly close and free all devices. */
-static int clear_instances(void)
+static int init(struct sr_context *sr_ctx)
 {
-	struct sr_dev_inst *sdi;
-	struct drv_context *drvc;
-	struct dev_context *devc;
-	GSList *l;
-
-	if (!(drvc = di->priv))
-		return SR_OK;
-
-	for (l = drvc->instances; l; l = l->next) {
-		if (!(sdi = l->data))
-			continue;
-		if (!(devc = sdi->priv))
-			continue;
-
-		hw_dev_close(sdi);
-		sr_usb_dev_inst_free(devc->usb);
-		sr_dev_inst_free(sdi);
-	}
-
-	g_slist_free(drvc->instances);
-	drvc->instances = NULL;
-
-	return SR_OK;
+	return std_init(sr_ctx, di, LOG_PREFIX);
 }
 
-static int hw_init(struct sr_context *sr_ctx)
+static GSList *scan(GSList *options)
 {
 	struct drv_context *drvc;
-
-	if (!(drvc = g_try_malloc0(sizeof(struct drv_context)))) {
-		sr_err("Driver context malloc failed.");
-		return SR_ERR_MALLOC;
-	}
-
-	drvc->sr_ctx = sr_ctx;
-	di->priv = drvc;
-
-	return SR_OK;
-}
-
-static GSList *hw_scan(GSList *options)
-{
-	struct drv_context *drvc;
-	struct dev_context *devc;
 	struct sr_dev_inst *sdi;
 	struct sr_usb_dev_inst *usb;
 	struct sr_config *src;
 	GSList *usb_devices, *devices, *l;
 	const char *conn;
 
-	(void)options;
-
-	if (!(drvc = di->priv)) {
-		sr_err("Driver was not initialized.");
-		return NULL;
-	}
-
-	/* USB scan is always authoritative. */
-	clear_instances();
+	drvc = di->priv;
 
 	conn = NULL;
 	for (l = options; l; l = l->next) {
 		src = l->data;
 		switch (src->key) {
 		case SR_CONF_CONN:
-			conn = src->value;
+			conn = g_variant_get_string(src->data, NULL);
 			break;
 		}
 	}
@@ -126,8 +76,8 @@ static GSList *hw_scan(GSList *options)
 				g_free(usb);
 				continue;
 			}
-			devc = sdi->priv;
-			devc->usb = usb;
+			sdi->inst_type = SR_INST_USB;
+			sdi->conn = usb;
 			drvc->instances = g_slist_append(drvc->instances, sdi);
 			devices = g_slist_append(devices, sdi);
 		}
@@ -138,22 +88,15 @@ static GSList *hw_scan(GSList *options)
 	return devices;
 }
 
-static GSList *hw_dev_list(void)
+static GSList *dev_list(void)
 {
-	struct drv_context *drvc;
-
-	if (!(drvc = di->priv)) {
-		sr_err("Driver was not initialized.");
-		return NULL;
-	}
-
-	return drvc->instances;
+	return ((struct drv_context *)(di->priv))->instances;
 }
 
-static int hw_dev_open(struct sr_dev_inst *sdi)
+static int dev_open(struct sr_dev_inst *sdi)
 {
 	struct drv_context *drvc;
-	struct dev_context *devc;
+	struct sr_usb_dev_inst *usb;
 	int ret;
 
 	if (!(drvc = di->priv)) {
@@ -161,11 +104,12 @@ static int hw_dev_open(struct sr_dev_inst *sdi)
 		return SR_ERR;
 	}
 
-	devc = sdi->priv;
-	if (sr_usb_open(drvc->sr_ctx->libusb_ctx, devc->usb) != SR_OK)
+	usb = sdi->conn;
+
+	if (sr_usb_open(drvc->sr_ctx->libusb_ctx, usb) != SR_OK)
 		return SR_ERR;
 
-	if ((ret = libusb_claim_interface(devc->usb->devhdl, LASCAR_INTERFACE))) {
+	if ((ret = libusb_claim_interface(usb->devhdl, LASCAR_INTERFACE))) {
 		sr_err("Failed to claim interface: %s.", libusb_error_name(ret));
 		return SR_ERR;
 	}
@@ -174,101 +118,139 @@ static int hw_dev_open(struct sr_dev_inst *sdi)
 	return ret;
 }
 
-static int hw_dev_close(struct sr_dev_inst *sdi)
+static int dev_close(struct sr_dev_inst *sdi)
 {
-	struct dev_context *devc;
+	struct sr_usb_dev_inst *usb;
 
 	if (!di->priv) {
 		sr_err("Driver was not initialized.");
 		return SR_ERR;
 	}
 
-	devc = sdi->priv;
-	if (!devc->usb->devhdl)
+	usb = sdi->conn;
+
+	if (!usb->devhdl)
 		/*  Nothing to do. */
 		return SR_OK;
 
-	libusb_release_interface(devc->usb->devhdl, LASCAR_INTERFACE);
-	libusb_close(devc->usb->devhdl);
-	devc->usb->devhdl = NULL;
-	g_free(devc->config);
+	libusb_release_interface(usb->devhdl, LASCAR_INTERFACE);
+	libusb_close(usb->devhdl);
+	usb->devhdl = NULL;
 	sdi->status = SR_ST_INACTIVE;
 
-
 	return SR_OK;
 }
 
-static int hw_cleanup(void)
+static int cleanup(void)
 {
+	int ret;
 	struct drv_context *drvc;
 
 	if (!(drvc = di->priv))
 		/* Can get called on an unused driver, doesn't matter. */
 		return SR_OK;
 
-	clear_instances();
+
+	ret = std_dev_clear(di, NULL);
 	g_free(drvc);
 	di->priv = NULL;
 
-	return SR_OK;
+	return ret;
 }
 
-static int config_get(int id, const void **data, const struct sr_dev_inst *sdi)
+static int config_get(int id, GVariant **data, const struct sr_dev_inst *sdi,
+		const struct sr_channel_group *cg)
 {
-	(void)sdi;
+	struct dev_context *devc;
+	struct sr_usb_dev_inst *usb;
+	int ret;
+	char str[128];
 
+	(void)cg;
+
+	devc = sdi->priv;
 	switch (id) {
+	case SR_CONF_CONN:
+		if (!sdi || !sdi->conn)
+			return SR_ERR_ARG;
+		usb = sdi->conn;
+		snprintf(str, 128, "%d.%d", usb->bus, usb->address);
+		*data = g_variant_new_string(str);
+		break;
+	case SR_CONF_DATALOG:
+		if (!sdi)
+			return SR_ERR_ARG;
+		if ((ret = lascar_is_logging(sdi)) == -1)
+			return SR_ERR;
+		*data = g_variant_new_boolean(ret ? TRUE : FALSE);
+		break;
+	case SR_CONF_LIMIT_SAMPLES:
+		*data = g_variant_new_uint64(devc->limit_samples);
+		break;
 	default:
-		return SR_ERR_ARG;
+		return SR_ERR_NA;
 	}
 
 	return SR_OK;
 }
 
-static int config_set(int id, const void *value, const struct sr_dev_inst *sdi)
+static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi,
+		const struct sr_channel_group *cg)
 {
 	struct dev_context *devc;
 	int ret;
 
+	(void)cg;
+
+	if (sdi->status != SR_ST_ACTIVE)
+		return SR_ERR_DEV_CLOSED;
+
 	if (!di->priv) {
 		sr_err("Driver was not initialized.");
 		return SR_ERR;
 	}
-	if (sdi->status != SR_ST_ACTIVE) {
-		sr_err("Device inactive, can't set config options.");
-		return SR_ERR;
-	}
 
 	devc = sdi->priv;
 	ret = SR_OK;
 	switch (id) {
+	case SR_CONF_DATALOG:
+		if (g_variant_get_boolean(data)) {
+			/* Start logging. */
+			ret = lascar_start_logging(sdi);
+		} else {
+			/* Stop logging. */
+			ret = lascar_stop_logging(sdi);
+		}
+		break;
 	case SR_CONF_LIMIT_SAMPLES:
-		devc->limit_samples = *(const uint64_t *)value;
+		devc->limit_samples = g_variant_get_uint64(data);
 		sr_dbg("Setting sample limit to %" PRIu64 ".",
 		       devc->limit_samples);
 		break;
 	default:
-		sr_err("Unknown hardware capability: %d.", id);
-		ret = SR_ERR_ARG;
+		ret = SR_ERR_NA;
 	}
 
 	return ret;
 }
 
-static int config_list(int key, const void **data, const struct sr_dev_inst *sdi)
+static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi,
+		const struct sr_channel_group *cg)
 {
-
 	(void)sdi;
+	(void)cg;
 
 	switch (key) {
 	case SR_CONF_SCAN_OPTIONS:
-		*data = hwopts;
+		*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
+				hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t));
 		break;
 	case SR_CONF_DEVICE_OPTIONS:
-		*data = hwcaps;
+		*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
+				hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t));
 		break;
 	default:
-		return SR_ERR_ARG;
+		return SR_ERR_NA;
 	}
 
 	return SR_OK;
@@ -306,10 +288,13 @@ static float binary32_le_to_float(unsigned char *buf)
 static int lascar_proc_config(const struct sr_dev_inst *sdi)
 {
 	struct dev_context *devc;
-	int ret;
+	struct sr_usb_dev_inst *usb;
+	int dummy, ret;
 
 	devc = sdi->priv;
-	if (!(devc->config = lascar_get_config(devc->usb->devhdl)))
+	usb = sdi->conn;
+
+	if (lascar_get_config(usb->devhdl, devc->config, &dummy) != SR_OK)
 		return SR_ERR;
 
 	ret = SR_OK;
@@ -341,25 +326,31 @@ static int lascar_proc_config(const struct sr_dev_inst *sdi)
 	return ret;
 }
 
-static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
-		void *cb_data)
+static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
 {
 	struct sr_datafeed_packet packet;
-	struct sr_datafeed_header header;
+	struct sr_datafeed_meta meta;
+	struct sr_config *src;
 	struct dev_context *devc;
-	struct drv_context *drvc = di->priv;
+	struct drv_context *drvc;
+	struct sr_usb_dev_inst *usb;
 	struct libusb_transfer *xfer_in, *xfer_out;
-	const struct libusb_pollfd **pfd;
 	struct timeval tv;
-	int ret, i;
+	uint64_t interval;
+	int ret;
 	unsigned char cmd[3], resp[4], *buf;
 
+	if (sdi->status != SR_ST_ACTIVE)
+		return SR_ERR_DEV_CLOSED;
+
 	if (!di->priv) {
 		sr_err("Driver was not initialized.");
 		return SR_ERR;
 	}
 
+	drvc = di->priv;
 	devc = sdi->priv;
+	usb = sdi->conn;
 	devc->cb_data = cb_data;
 
 	if (lascar_proc_config(sdi) != SR_OK)
@@ -368,11 +359,15 @@ static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
 	sr_dbg("Starting log retrieval.");
 
 	/* Send header packet to the session bus. */
-	sr_dbg("Sending SR_DF_HEADER.");
-	packet.type = SR_DF_HEADER;
-	packet.payload = (uint8_t *)&header;
-	header.feed_version = 1;
+	std_session_send_df_header(cb_data, LOG_PREFIX);
+
+	interval = (devc->config[0x1c] | (devc->config[0x1d] << 8)) * 1000;
+	packet.type = SR_DF_META;
+	packet.payload = &meta;
+	src = sr_config_new(SR_CONF_SAMPLE_INTERVAL, g_variant_new_uint64(interval));
+	meta.config = g_slist_append(NULL, src);
 	sr_session_send(devc->cb_data, &packet);
+	g_free(src);
 
 	if (devc->logged_samples == 0) {
 		/* This ensures the frontend knows the session is done. */
@@ -385,20 +380,20 @@ static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
 			!(xfer_out = libusb_alloc_transfer(0)))
 		return SR_ERR;
 
-	libusb_control_transfer(devc->usb->devhdl, LIBUSB_REQUEST_TYPE_VENDOR,
+	libusb_control_transfer(usb->devhdl, LIBUSB_REQUEST_TYPE_VENDOR,
 			0x00, 0xffff, 0x00, NULL, 0, 50);
-	libusb_control_transfer(devc->usb->devhdl, LIBUSB_REQUEST_TYPE_VENDOR,
+	libusb_control_transfer(usb->devhdl, LIBUSB_REQUEST_TYPE_VENDOR,
 			0x02, 0x0002, 0x00, NULL, 0, 50);
-	libusb_control_transfer(devc->usb->devhdl, LIBUSB_REQUEST_TYPE_VENDOR,
+	libusb_control_transfer(usb->devhdl, LIBUSB_REQUEST_TYPE_VENDOR,
 			0x02, 0x0001, 0x00, NULL, 0, 50);
 
 
 	/* Flush input. The F321 requires this. */
-	while (libusb_bulk_transfer(devc->usb->devhdl, LASCAR_EP_IN, resp,
+	while (libusb_bulk_transfer(usb->devhdl, LASCAR_EP_IN, resp,
 			256, &ret, 5) == 0 && ret > 0)
 		;
 
-	libusb_fill_bulk_transfer(xfer_in, devc->usb->devhdl, LASCAR_EP_IN,
+	libusb_fill_bulk_transfer(xfer_in, usb->devhdl, LASCAR_EP_IN,
 			resp, sizeof(resp), mark_xfer, 0, 10000);
 	if (libusb_submit_transfer(xfer_in) != 0) {
 		libusb_free_transfer(xfer_in);
@@ -409,7 +404,7 @@ static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
 	cmd[0] = 0x03;
 	cmd[1] = 0xff;
 	cmd[2] = 0xff;
-	libusb_fill_bulk_transfer(xfer_out, devc->usb->devhdl, LASCAR_EP_OUT,
+	libusb_fill_bulk_transfer(xfer_out, usb->devhdl, LASCAR_EP_OUT,
 			cmd, 3, mark_xfer, 0, 100);
 	if (libusb_submit_transfer(xfer_out) != 0) {
 		libusb_free_transfer(xfer_in);
@@ -439,18 +434,11 @@ static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
 	devc->log_size = xfer_in->buffer[1] + (xfer_in->buffer[2] << 8);
 	libusb_free_transfer(xfer_out);
 
-	pfd = libusb_get_pollfds(drvc->sr_ctx->libusb_ctx);
-	for (i = 0; pfd[i]; i++) {
-		/* Handle USB events every 100ms, for decent latency. */
-		sr_source_add(pfd[i]->fd, pfd[i]->events, 100,
-				lascar_el_usb_handle_events, (void *)sdi);
-		/* We'll need to remove this fd later. */
-		devc->usbfd[i] = pfd[i]->fd;
-	}
-	devc->usbfd[i] = -1;
+	usb_source_add(sdi->session, drvc->sr_ctx, 100,
+			lascar_el_usb_handle_events, (void *)sdi);
 
 	buf = g_try_malloc(4096);
-	libusb_fill_bulk_transfer(xfer_in, devc->usb->devhdl, LASCAR_EP_IN,
+	libusb_fill_bulk_transfer(xfer_in, usb->devhdl, LASCAR_EP_IN,
 			buf, 4096, lascar_el_usb_receive_transfer, cb_data, 100);
 	if ((ret = libusb_submit_transfer(xfer_in) != 0)) {
 		sr_err("Unable to submit transfer: %s.", libusb_error_name(ret));
@@ -462,7 +450,7 @@ static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
 	return SR_OK;
 }
 
-SR_PRIV int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
+SR_PRIV int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
 {
 	(void)cb_data;
 
@@ -486,17 +474,17 @@ SR_PRIV struct sr_dev_driver lascar_el_usb_driver_info = {
 	.name = "lascar-el-usb",
 	.longname = "Lascar EL-USB",
 	.api_version = 1,
-	.init = hw_init,
-	.cleanup = hw_cleanup,
-	.scan = hw_scan,
-	.dev_list = hw_dev_list,
-	.dev_clear = clear_instances,
+	.init = init,
+	.cleanup = cleanup,
+	.scan = scan,
+	.dev_list = dev_list,
+	.dev_clear = NULL,
 	.config_get = config_get,
 	.config_set = config_set,
 	.config_list = config_list,
-	.dev_open = hw_dev_open,
-	.dev_close = hw_dev_close,
-	.dev_acquisition_start = hw_dev_acquisition_start,
-	.dev_acquisition_stop = hw_dev_acquisition_stop,
+	.dev_open = dev_open,
+	.dev_close = dev_close,
+	.dev_acquisition_start = dev_acquisition_start,
+	.dev_acquisition_stop = dev_acquisition_stop,
 	.priv = NULL,
 };