X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=hardware%2Fikalogic-scanalogic2%2Fapi.c;h=1fe869c38d4c7b4ce8db9300e0a0cc9ddf2e8b53;hb=7b4edcb654d6b36da4369bac3688ad77f6132766;hp=924bc3c42c954b46f334a0b9b0d3a679d28d9855;hpb=16e76baec9b1df806e46d4da61269375924ab950;p=libsigrok.git

diff --git a/hardware/ikalogic-scanalogic2/api.c b/hardware/ikalogic-scanalogic2/api.c
index 924bc3c4..1fe869c3 100644
--- a/hardware/ikalogic-scanalogic2/api.c
+++ b/hardware/ikalogic-scanalogic2/api.c
@@ -19,51 +19,260 @@
 
 #include "protocol.h"
 
+static const int hwcaps[] = {
+	SR_CONF_LOGIC_ANALYZER,
+	SR_CONF_SAMPLERATE,
+	SR_CONF_LIMIT_SAMPLES,
+	SR_CONF_TRIGGER_TYPE,
+	SR_CONF_CAPTURE_RATIO,
+};
+
+SR_PRIV const uint64_t sl2_samplerates[NUM_SAMPLERATES] = {
+	SR_KHZ(1.25),
+	SR_KHZ(10),
+	SR_KHZ(50),
+	SR_KHZ(100),
+	SR_KHZ(250),
+	SR_KHZ(500),
+	SR_MHZ(1),
+	SR_MHZ(2.5),
+	SR_MHZ(5),
+	SR_MHZ(10),
+	SR_MHZ(20),
+};
+
+static const char *probe_names[NUM_PROBES + 1] = {
+	"0", "1", "2", "3",
+	NULL,
+};
+
 SR_PRIV struct sr_dev_driver ikalogic_scanalogic2_driver_info;
 static struct sr_dev_driver *di = &ikalogic_scanalogic2_driver_info;
 
-
 static int init(struct sr_context *sr_ctx)
 {
-	return std_hw_init(sr_ctx, di, LOG_PREFIX);
+	return std_init(sr_ctx, di, LOG_PREFIX);
 }
 
 static GSList *scan(GSList *options)
 {
+	GSList *usb_devices, *devices, *l;
 	struct drv_context *drvc;
-	GSList *devices;
+	struct sr_dev_inst *sdi;
+	struct sr_probe *probe;
+	struct dev_context *devc;
+	struct sr_usb_dev_inst *usb;
+	struct device_info dev_info;
+	int ret, device_index, i;
+	char *fw_ver_str;
 
 	(void)options;
 
 	devices = NULL;
 	drvc = di->priv;
 	drvc->instances = NULL;
+	device_index = 0;
+
+	usb_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, USB_VID_PID);
+
+	if (usb_devices == NULL)
+		return NULL;
+
+	for (l = usb_devices; l; l = l->next) {
+		usb = l->data;
+
+		if ((ret = sl2_get_device_info(*usb, &dev_info)) < 0) {
+			sr_warn("Failed to get device information: %d.", ret);
+			sr_usb_dev_inst_free(usb);
+			continue;
+		}
+
+		if (!(devc = g_try_malloc(sizeof(struct dev_context)))) {
+			sr_err("Device instance malloc failed.");
+			sr_usb_dev_inst_free(usb);
+			continue;
+		}
+
+		if (!(devc->xfer_in = libusb_alloc_transfer(0))) {
+			sr_err("Transfer malloc failed.");
+			sr_usb_dev_inst_free(usb);
+			g_free(devc);
+			continue;
+		}
+
+		if (!(devc->xfer_out = libusb_alloc_transfer(0))) {
+			sr_err("Transfer malloc failed.");
+			sr_usb_dev_inst_free(usb);
+			libusb_free_transfer(devc->xfer_in);
+			g_free(devc);
+			continue;
+		}
+
+		fw_ver_str = g_strdup_printf("%u.%u", dev_info.fw_ver_major,
+			dev_info.fw_ver_minor);
+		if (!fw_ver_str) {
+			sr_err("Firmware string malloc failed.");
+			sr_usb_dev_inst_free(usb);
+			libusb_free_transfer(devc->xfer_in);
+			libusb_free_transfer(devc->xfer_out);
+			g_free(devc);
+			continue;
+		}
+
+		sdi = sr_dev_inst_new(device_index, SR_ST_INACTIVE, VENDOR_NAME,
+			MODEL_NAME, fw_ver_str);
+		g_free(fw_ver_str);
+		if (!sdi) {
+			sr_err("sr_dev_inst_new failed.");
+			sr_usb_dev_inst_free(usb);
+			libusb_free_transfer(devc->xfer_in);
+			libusb_free_transfer(devc->xfer_out);
+			g_free(devc);
+			continue;
+		}
+
+		sdi->priv = devc;
+		sdi->driver = di;
+		sdi->inst_type = SR_INST_USB;
+		sdi->conn = usb;
+
+		for (i = 0; probe_names[i]; i++) {
+			probe = sr_probe_new(i, SR_PROBE_LOGIC, TRUE,
+				probe_names[i]);
+			sdi->probes = g_slist_append(sdi->probes, probe);
+			devc->probes[i] = probe;
+		}
+
+		devc->state = STATE_IDLE;
+		devc->next_state = STATE_IDLE;
+
+		/* Set default samplerate. */
+		sl2_set_samplerate(sdi, DEFAULT_SAMPLERATE);
+
+		/* Set default capture ratio. */
+		devc->capture_ratio = 0;
+
+		/* Set default after trigger delay. */
+		devc->after_trigger_delay = 0;
+
+		memset(devc->xfer_buf_in, 0, LIBUSB_CONTROL_SETUP_SIZE +
+			PACKET_LENGTH);
+		memset(devc->xfer_buf_out, 0, LIBUSB_CONTROL_SETUP_SIZE +
+			PACKET_LENGTH);
+
+		libusb_fill_control_setup(devc->xfer_buf_in,
+			USB_REQUEST_TYPE_IN, USB_HID_GET_REPORT,
+			USB_HID_REPORT_TYPE_FEATURE, USB_INTERFACE,
+			PACKET_LENGTH);
+		libusb_fill_control_setup(devc->xfer_buf_out,
+			USB_REQUEST_TYPE_OUT, USB_HID_SET_REPORT,
+			USB_HID_REPORT_TYPE_FEATURE, USB_INTERFACE,
+			PACKET_LENGTH);
+
+		devc->xfer_data_in = devc->xfer_buf_in +
+			LIBUSB_CONTROL_SETUP_SIZE;
+		devc->xfer_data_out = devc->xfer_buf_out +
+			LIBUSB_CONTROL_SETUP_SIZE;
+
+		drvc->instances = g_slist_append(drvc->instances, sdi);
+		devices = g_slist_append(devices, sdi);
+
+		device_index++;
+	}
 
-	/* TODO: scan for devices, either based on a SR_CONF_CONN option
-	 * or on a USB scan. */
+	g_slist_free(usb_devices);
 
 	return devices;
 }
 
 static GSList *dev_list(void)
 {
-	struct drv_context *drvc;
+	return ((struct drv_context *)(di->priv))->instances;
+}
 
-	drvc = di->priv;
+static void clear_dev_context(void *priv)
+{
+	struct dev_context *devc;
+
+	devc = priv;
+
+	sr_dbg("Device context cleared.");
 
-	return drvc->instances;
+	libusb_free_transfer(devc->xfer_in);
+	libusb_free_transfer(devc->xfer_out);
+	g_free(devc);
 }
 
 static int dev_clear(void)
 {
-	return std_dev_clear(di, NULL);
+	return std_dev_clear(di, &clear_dev_context);
 }
 
 static int dev_open(struct sr_dev_inst *sdi)
 {
-	(void)sdi;
+	struct drv_context *drvc;
+	struct dev_context *devc;
+	struct sr_usb_dev_inst *usb;
+	uint8_t buffer[PACKET_LENGTH];
+	int ret;
 
-	/* TODO: get handle from sdi->conn and open it. */
+	if (!(drvc = di->priv)) {
+		sr_err("Driver was not initialized.");
+		return SR_ERR;
+	}
+
+	usb = sdi->conn;
+	devc = sdi->priv;
+
+	if (sr_usb_open(drvc->sr_ctx->libusb_ctx, usb) != SR_OK)
+		return SR_ERR;
+
+	/*
+	 * Determine if a kernel driver is active on this interface and, if so,
+	 * detach it.
+	 */
+	if (libusb_kernel_driver_active(usb->devhdl, USB_INTERFACE) == 1) {
+		ret = libusb_detach_kernel_driver(usb->devhdl, USB_INTERFACE);
+		if (ret < 0) {
+			sr_err("Failed to detach kernel driver: %s.",
+				libusb_error_name(ret));
+			return SR_ERR;
+		}
+	}
+
+	if ((ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE)) < 0) {
+		sr_err("Failed to claim interface: %s.",
+			libusb_error_name(ret));
+		return SR_ERR;
+	}
+
+	libusb_fill_control_transfer(devc->xfer_in, usb->devhdl,
+		devc->xfer_buf_in, sl2_receive_transfer_in,
+		sdi, USB_TIMEOUT);
+
+	libusb_fill_control_transfer(devc->xfer_out, usb->devhdl,
+		devc->xfer_buf_out, sl2_receive_transfer_out,
+		sdi, USB_TIMEOUT);
+
+	memset(buffer, 0, sizeof(buffer));
+
+	buffer[0] = CMD_RESET;
+	if ((ret = sl2_transfer_out(usb->devhdl, buffer)) != PACKET_LENGTH) {
+		sr_err("Device reset failed: %s.", libusb_error_name(ret));
+		return SR_ERR;
+	}
+
+	/*
+	 * Set the device to idle state. If the device is not in idle state it
+	 * possibly will reset itself after a few seconds without being used
+	 * and thereby close the connection.
+	 */
+	buffer[0] = CMD_IDLE;
+	if ((ret = sl2_transfer_out(usb->devhdl, buffer)) != PACKET_LENGTH) {
+		sr_err("Failed to set device in idle state: %s.",
+			libusb_error_name(ret));
+		return SR_ERR;
+	}
 
 	sdi->status = SR_ST_ACTIVE;
 
@@ -72,10 +281,22 @@ static int dev_open(struct sr_dev_inst *sdi)
 
 static int dev_close(struct sr_dev_inst *sdi)
 {
-	(void)sdi;
+	struct sr_usb_dev_inst *usb;
+
+	if (!di->priv) {
+		sr_err("Driver was not initialized.");
+		return SR_ERR;
+	}
+
+	usb = sdi->conn;
 
-	/* TODO: get handle from sdi->conn and close it. */
+	if (!usb->devhdl)
+		return SR_OK;
 
+	libusb_release_interface(usb->devhdl, USB_INTERFACE);
+	libusb_close(usb->devhdl);
+
+	usb->devhdl = NULL;
 	sdi->status = SR_ST_INACTIVE;
 
 	return SR_OK;
@@ -83,23 +304,27 @@ static int dev_close(struct sr_dev_inst *sdi)
 
 static int cleanup(void)
 {
-	dev_clear();
-
-	/* TODO: free other driver resources, if any. */
-
-	return SR_OK;
+	return dev_clear();
 }
 
-static int config_get(int key, GVariant **data, const struct sr_dev_inst *sdi)
+static int config_get(int key, GVariant **data, const struct sr_dev_inst *sdi,
+		const struct sr_probe_group *probe_group)
 {
+	struct dev_context *devc;
 	int ret;
 
-	(void)sdi;
-	(void)data;
+	(void)probe_group;
 
 	ret = SR_OK;
+	devc = sdi->priv;
+
 	switch (key) {
-	/* TODO */
+	case SR_CONF_SAMPLERATE:
+		*data = g_variant_new_uint64(devc->samplerate);
+		break;
+	case SR_CONF_CAPTURE_RATIO:
+		*data = g_variant_new_uint64(devc->capture_ratio);
+		break;
 	default:
 		return SR_ERR_NA;
 	}
@@ -107,35 +332,67 @@ static int config_get(int key, GVariant **data, const struct sr_dev_inst *sdi)
 	return ret;
 }
 
-static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi)
+static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi,
+		const struct sr_probe_group *probe_group)
 {
+	uint64_t samplerate, limit_samples, capture_ratio;
 	int ret;
 
-	(void)data;
+	(void)probe_group;
 
 	if (sdi->status != SR_ST_ACTIVE)
 		return SR_ERR_DEV_CLOSED;
 
 	ret = SR_OK;
+
 	switch (key) {
-	/* TODO */
+	case SR_CONF_LIMIT_SAMPLES:
+		limit_samples = g_variant_get_uint64(data);
+		ret = sl2_set_limit_samples(sdi, limit_samples);
+		break;
+	case SR_CONF_SAMPLERATE:
+		samplerate = g_variant_get_uint64(data);
+		ret = sl2_set_samplerate(sdi, samplerate);
+		break;
+	case SR_CONF_CAPTURE_RATIO:
+		capture_ratio = g_variant_get_uint64(data);
+		ret = sl2_set_capture_ratio(sdi, capture_ratio);
+		break;
 	default:
-		ret = SR_ERR_NA;
+		return SR_ERR_NA;
 	}
 
 	return ret;
 }
 
-static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi)
+static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi,
+		const struct sr_probe_group *probe_group)
 {
+	GVariant *gvar;
+	GVariantBuilder gvb;
 	int ret;
 
 	(void)sdi;
-	(void)data;
+	(void)probe_group;
 
 	ret = SR_OK;
+
 	switch (key) {
-	/* TODO */
+	case SR_CONF_DEVICE_OPTIONS:
+		*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, hwcaps,
+			ARRAY_SIZE(hwcaps), sizeof(int32_t));
+		break;
+	case SR_CONF_SAMPLERATE:
+		g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
+		gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"),
+			sl2_samplerates, ARRAY_SIZE(sl2_samplerates),
+			sizeof(uint64_t));
+		g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar);
+		*data = g_variant_builder_end(&gvb);
+		break;
+	case SR_CONF_TRIGGER_TYPE:
+		*data = g_variant_new_string(TRIGGER_TYPES);
+		break;
 	default:
 		return SR_ERR_NA;
 	}
@@ -143,17 +400,114 @@ static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi)
 	return ret;
 }
 
-static int 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)
 {
-	(void)sdi;
-	(void)cb_data;
+	const struct libusb_pollfd **pfd;
+	struct drv_context *drvc;
+	struct dev_context *devc;
+	uint16_t trigger_bytes, tmp;
+	unsigned int i, j;
+	int ret;
 
 	if (sdi->status != SR_ST_ACTIVE)
 		return SR_ERR_DEV_CLOSED;
 
-	/* TODO: configure hardware, reset acquisition state, set up
-	 * callbacks and send header packet. */
+	devc = sdi->priv;
+	drvc = di->priv;
+
+	devc->cb_data = cb_data;
+	devc->wait_data_ready_locked = TRUE;
+	devc->stopping_in_progress = FALSE;
+	devc->transfer_error = FALSE;
+	devc->samples_processed = 0;
+	devc->channel = 0;
+	devc->sample_packet = 0;
+
+	/*
+	 * The trigger must be configured first because the calculation of the
+	 * pre and post trigger samples depends on a configured trigger.
+	 */
+	sl2_configure_trigger(sdi);
+	sl2_calculate_trigger_samples(sdi);
+
+	trigger_bytes = devc->pre_trigger_bytes + devc->post_trigger_bytes;
+
+	/* Calculate the number of expected sample packets. */
+	devc->num_sample_packets = trigger_bytes / PACKET_NUM_SAMPLE_BYTES;
+
+	/* Round up the number of expected sample packets. */
+	if (trigger_bytes % PACKET_NUM_SAMPLE_BYTES != 0)
+		devc->num_sample_packets++;
+
+	devc->num_enabled_probes = 0;
+
+	/*
+	 * Count the number of enabled probes and number them for a sequential
+	 * access.
+	 */
+	for (i = 0, j = 0; i < NUM_PROBES; i++) {
+		if (devc->probes[i]->enabled) {
+			devc->num_enabled_probes++;
+			devc->probe_map[j] = i;
+			j++;
+		}
+	}
+
+	sr_dbg("Number of enabled probes: %i.", devc->num_enabled_probes);
+
+	/* Set up the transfer buffer for the acquisition. */
+	devc->xfer_data_out[0] = CMD_SAMPLE;
+	devc->xfer_data_out[1] = 0x00;
+
+	tmp = GUINT16_TO_LE(devc->pre_trigger_bytes);
+	memcpy(devc->xfer_data_out + 2, &tmp, sizeof(tmp));
+
+	tmp = GUINT16_TO_LE(devc->post_trigger_bytes);
+	memcpy(devc->xfer_data_out + 4, &tmp, sizeof(tmp));
+
+	devc->xfer_data_out[6] = devc->samplerate_id;
+	devc->xfer_data_out[7] = devc->trigger_type;
+	devc->xfer_data_out[8] = devc->trigger_channel;
+	devc->xfer_data_out[9] = 0x00;
+
+	tmp = GUINT16_TO_LE(devc->after_trigger_delay);
+	memcpy(devc->xfer_data_out + 10, &tmp, sizeof(tmp));
+
+	if (!(pfd = libusb_get_pollfds(drvc->sr_ctx->libusb_ctx))) {
+		sr_err("libusb_get_pollfds failed.");
+		return SR_ERR;
+	}
+
+	/* Count the number of file descriptors. */
+	for (devc->num_usbfd = 0; pfd[devc->num_usbfd]; devc->num_usbfd++);
+
+	if (!(devc->usbfd = g_try_malloc(devc->num_usbfd * sizeof(int)))) {
+		sr_err("File descriptor array malloc failed.");
+		free(pfd);
+		return SR_ERR_MALLOC;
+	}
+
+	if ((ret = libusb_submit_transfer(devc->xfer_out)) != 0) {
+		sr_err("Submit transfer failed: %s.", libusb_error_name(ret));
+		g_free(devc->usbfd);
+		return SR_ERR;
+	}
+
+	for (i = 0; i < devc->num_usbfd; i++) {
+		sr_source_add(pfd[i]->fd, pfd[i]->events, 100,
+			ikalogic_scanalogic2_receive_data, (void *)sdi);
+
+		devc->usbfd[i] = pfd[i]->fd;
+	}
+
+	free(pfd);
+
+	sr_dbg("Acquisition started successfully.");
+
+	/* Send header packet to the session bus. */
+	std_session_send_df_header(cb_data, LOG_PREFIX);
+
+	devc->next_state = STATE_SAMPLE;
 
 	return SR_OK;
 }
@@ -165,14 +519,16 @@ static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
 	if (sdi->status != SR_ST_ACTIVE)
 		return SR_ERR_DEV_CLOSED;
 
-	/* TODO: stop acquisition. */
+	sr_dbg("Stopping acquisition.");
+
+	sdi->status = SR_ST_STOPPING;
 
 	return SR_OK;
 }
 
 SR_PRIV struct sr_dev_driver ikalogic_scanalogic2_driver_info = {
 	.name = "ikalogic-scanalogic2",
-	.longname = "IKALOGIC Scanalogic2",
+	.longname = "IKALOGIC Scanalogic-2",
 	.api_version = 1,
 	.init = init,
 	.cleanup = cleanup,