X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Fhardware%2Fsaleae-logic16%2Fapi.c;h=bf41b759a3dda3c94c11399791999ecd95799183;hb=1c47e0da8f2571bc34dbdc368c3c1f55318c3aa0;hp=c3aaacc52c0a83250848697b30298fa3cde1eabf;hpb=aac29cc192ccf82b64e77b5e6b11b411da32deed;p=libsigrok.git

diff --git a/src/hardware/saleae-logic16/api.c b/src/hardware/saleae-logic16/api.c
index c3aaacc5..bf41b759 100644
--- a/src/hardware/saleae-logic16/api.c
+++ b/src/hardware/saleae-logic16/api.c
@@ -19,12 +19,13 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <config.h>
 #include <glib.h>
 #include <libusb.h>
 #include <stdlib.h>
 #include <string.h>
 #include <math.h>
-#include "libsigrok.h"
+#include <libsigrok/libsigrok.h>
 #include "libsigrok-internal.h"
 #include "protocol.h"
 
@@ -33,13 +34,12 @@
 
 #define USB_INTERFACE		0
 #define USB_CONFIGURATION	1
-#define FX2_FIRMWARE		FIRMWARE_DIR "/saleae-logic16-fx2.fw"
+#define FX2_FIRMWARE		"saleae-logic16-fx2.fw"
 
 #define MAX_RENUM_DELAY_MS	3000
 #define NUM_SIMUL_TRANSFERS	32
 
 SR_PRIV struct sr_dev_driver saleae_logic16_driver_info;
-static struct sr_dev_driver *di = &saleae_logic16_driver_info;
 
 static const uint32_t scanopts[] = {
 	SR_CONF_CONN,
@@ -53,6 +53,7 @@ static const uint32_t devopts[] = {
 	SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
 	SR_CONF_VOLTAGE_THRESHOLD | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
 	SR_CONF_TRIGGER_MATCH | SR_CONF_LIST,
+	SR_CONF_CAPTURE_RATIO | SR_CONF_GET | SR_CONF_SET,
 };
 
 static const int32_t soft_trigger_matches[] = {
@@ -66,7 +67,6 @@ static const int32_t soft_trigger_matches[] = {
 static const char *channel_names[] = {
 	"0", "1", "2", "3", "4", "5", "6", "7", "8",
 	"9", "10", "11", "12", "13", "14", "15",
-	NULL,
 };
 
 static const struct {
@@ -95,7 +95,7 @@ static const uint64_t samplerates[] = {
 	SR_MHZ(100),
 };
 
-static int init(struct sr_context *sr_ctx)
+static int init(struct sr_dev_driver *di, struct sr_context *sr_ctx)
 {
 	return std_init(sr_ctx, di, LOG_PREFIX);
 }
@@ -111,8 +111,7 @@ static gboolean check_conf_profile(libusb_device *dev)
 	ret = FALSE;
 	while (!ret) {
 		/* Assume the FW has not been loaded, unless proven wrong. */
-		if (libusb_get_device_descriptor(dev, &des) != 0)
-			break;
+		libusb_get_device_descriptor(dev, &des);
 
 		if (libusb_open(dev, &hdl) != 0)
 			break;
@@ -138,22 +137,21 @@ static gboolean check_conf_profile(libusb_device *dev)
 	return ret;
 }
 
-static GSList *scan(GSList *options)
+static GSList *scan(struct sr_dev_driver *di, GSList *options)
 {
 	struct drv_context *drvc;
 	struct dev_context *devc;
 	struct sr_dev_inst *sdi;
 	struct sr_usb_dev_inst *usb;
-	struct sr_channel *ch;
 	struct sr_config *src;
 	GSList *l, *devices, *conn_devices;
 	struct libusb_device_descriptor des;
 	libusb_device **devlist;
-	int ret, i, j;
+	unsigned int i, j;
 	const char *conn;
 	char connection_id[64];
 
-	drvc = di->priv;
+	drvc = di->context;
 
 	conn = NULL;
 	for (l = options; l; l = l->next) {
@@ -187,11 +185,7 @@ static GSList *scan(GSList *options)
 				continue;
 		}
 
-		if ((ret = libusb_get_device_descriptor(devlist[i], &des)) != 0) {
-			sr_warn("Failed to get device descriptor: %s.",
-				libusb_error_name(ret));
-			continue;
-		}
+		libusb_get_device_descriptor(devlist[i], &des);
 
 		usb_get_port_path(devlist[i], connection_id, sizeof(connection_id));
 
@@ -205,15 +199,11 @@ static GSList *scan(GSList *options)
 		sdi->driver = di;
 		sdi->connection_id = g_strdup(connection_id);
 
-		for (j = 0; channel_names[j]; j++) {
-			if (!(ch = sr_channel_new(j, SR_CHANNEL_LOGIC, TRUE,
-						   channel_names[j])))
-				return NULL;
-			sdi->channels = g_slist_append(sdi->channels, ch);
-		}
+		for (j = 0; j < ARRAY_SIZE(channel_names); j++)
+			sr_channel_new(sdi, j, SR_CHANNEL_LOGIC, TRUE,
+					    channel_names[j]);
 
-		if (!(devc = g_try_malloc0(sizeof(struct dev_context))))
-			return NULL;
+		devc = g_malloc0(sizeof(struct dev_context));
 		devc->selected_voltage_range = VOLTAGE_RANGE_18_33_V;
 		sdi->priv = devc;
 		drvc->instances = g_slist_append(drvc->instances, sdi);
@@ -228,8 +218,8 @@ static GSList *scan(GSList *options)
 				libusb_get_bus_number(devlist[i]),
 				libusb_get_device_address(devlist[i]), NULL);
 		} else {
-			if (ezusb_upload_firmware(devlist[i], USB_CONFIGURATION,
-						  FX2_FIRMWARE) == SR_OK)
+			if (ezusb_upload_firmware(drvc->sr_ctx, devlist[i],
+					USB_CONFIGURATION, FX2_FIRMWARE) == SR_OK)
 				/* Store when this device's FW was updated. */
 				devc->fw_updated = g_get_monotonic_time();
 			else
@@ -245,13 +235,14 @@ static GSList *scan(GSList *options)
 	return devices;
 }
 
-static GSList *dev_list(void)
+static GSList *dev_list(const struct sr_dev_driver *di)
 {
-	return ((struct drv_context *)(di->priv))->instances;
+	return ((struct drv_context *)(di->context))->instances;
 }
 
 static int logic16_dev_open(struct sr_dev_inst *sdi)
 {
+	struct sr_dev_driver *di;
 	libusb_device **devlist;
 	struct sr_usb_dev_inst *usb;
 	struct libusb_device_descriptor des;
@@ -259,7 +250,8 @@ static int logic16_dev_open(struct sr_dev_inst *sdi)
 	int ret, i, device_count;
 	char connection_id[64];
 
-	drvc = di->priv;
+	di = sdi->driver;
+	drvc = di->context;
 	usb = sdi->conn;
 
 	if (sdi->status == SR_ST_ACTIVE)
@@ -274,11 +266,7 @@ static int logic16_dev_open(struct sr_dev_inst *sdi)
 	}
 
 	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;
-		}
+		libusb_get_device_descriptor(devlist[i], &des);
 
 		if (des.idVendor != LOGIC16_VID || des.idProduct != LOGIC16_PID)
 			continue;
@@ -401,7 +389,7 @@ static int dev_close(struct sr_dev_inst *sdi)
 	struct sr_usb_dev_inst *usb;
 
 	usb = sdi->conn;
-	if (usb->devhdl == NULL)
+	if (!usb->devhdl)
 		return SR_ERR;
 
 	sr_info("Closing device on %d.%d (logical) / %s (physical) interface %d.",
@@ -414,18 +402,17 @@ static int dev_close(struct sr_dev_inst *sdi)
 	return SR_OK;
 }
 
-static int cleanup(void)
+static int cleanup(const struct sr_dev_driver *di)
 {
 	int ret;
 	struct drv_context *drvc;
 
-	if (!(drvc = di->priv))
+	if (!(drvc = di->context))
 		/* Can get called on an unused driver, doesn't matter. */
 		return SR_OK;
 
 	ret = std_dev_clear(di, NULL);
 	g_free(drvc);
-	di->priv = NULL;
 
 	return ret;
 }
@@ -461,6 +448,12 @@ static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *s
 		devc = sdi->priv;
 		*data = g_variant_new_uint64(devc->cur_samplerate);
 		break;
+	case SR_CONF_CAPTURE_RATIO:
+		if (!sdi)
+			return SR_ERR;
+		devc = sdi->priv;
+		*data = g_variant_new_uint64(devc->capture_ratio);
+		break;
 	case SR_CONF_VOLTAGE_THRESHOLD:
 		if (!sdi)
 			return SR_ERR;
@@ -507,6 +500,10 @@ static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sd
 	case SR_CONF_LIMIT_SAMPLES:
 		devc->limit_samples = g_variant_get_uint64(data);
 		break;
+	case SR_CONF_CAPTURE_RATIO:
+		devc->capture_ratio = g_variant_get_uint64(data);
+		ret = (devc->capture_ratio > 100) ? SR_ERR : SR_OK;
+		break;
 	case SR_CONF_VOLTAGE_THRESHOLD:
 		g_variant_get(data, "(dd)", &low, &high);
 		ret = SR_ERR_ARG;
@@ -670,12 +667,14 @@ static int receive_data(int fd, int revents, void *cb_data)
 	struct dev_context *devc;
 	struct drv_context *drvc;
 	const struct sr_dev_inst *sdi;
+	struct sr_dev_driver *di;
 
 	(void)fd;
 	(void)revents;
 
 	sdi = cb_data;
-	drvc = di->priv;
+	di = sdi->driver;
+	drvc = di->context;
 	devc = sdi->priv;
 
 	tv.tv_sec = tv.tv_usec = 0;
@@ -691,6 +690,7 @@ static int receive_data(int fd, int revents, void *cb_data)
 
 static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
 {
+	struct sr_dev_driver *di = sdi->driver;
 	struct dev_context *devc;
 	struct drv_context *drvc;
 	struct sr_usb_dev_inst *usb;
@@ -704,7 +704,7 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
 	if (sdi->status != SR_ST_ACTIVE)
 		return SR_ERR_DEV_CLOSED;
 
-	drvc = di->priv;
+	drvc = di->context;
 	devc = sdi->priv;
 	usb = sdi->conn;
 
@@ -721,7 +721,12 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
 	memset(devc->channel_data, 0, sizeof(devc->channel_data));
 
 	if ((trigger = sr_session_trigger_get(sdi->session))) {
-		devc->stl = soft_trigger_logic_new(sdi, trigger);
+		int pre_trigger_samples = 0;
+		if (devc->limit_samples > 0)
+			pre_trigger_samples = devc->capture_ratio * devc->limit_samples/100;
+		devc->stl = soft_trigger_logic_new(sdi, trigger, pre_trigger_samples);
+		if (!devc->stl)
+			return SR_ERR_MALLOC;
 		devc->trigger_fired = FALSE;
 	} else
 		devc->trigger_fired = TRUE;
@@ -784,7 +789,6 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
 
 	usb_source_add(sdi->session, devc->ctx, timeout, receive_data, (void *)sdi);
 
-	/* Send header packet to the session bus. */
 	std_session_send_df_header(cb_data, LOG_PREFIX);
 
 	if ((ret = logic16_start_acquisition(sdi)) != SR_OK) {
@@ -827,5 +831,5 @@ SR_PRIV struct sr_dev_driver saleae_logic16_driver_info = {
 	.dev_close = dev_close,
 	.dev_acquisition_start = dev_acquisition_start,
 	.dev_acquisition_stop = dev_acquisition_stop,
-	.priv = NULL,
+	.context = NULL,
 };