]> sigrok.org Git - libsigrok.git/blobdiff - src/hardware/fx2lafw/api.c
fx2lafw: Add SR_CONF_CAPTURE_RATIO support.
[libsigrok.git] / src / hardware / fx2lafw / api.c
index 3242afcead486cb01dc4a7490d37101f6f4a4871..213be9cf2d72488a9a5d3a216e086829c3dfc2b6 100644 (file)
@@ -73,18 +73,21 @@ static const struct fx2lafw_profile supported_fx2[] = {
        { 0, 0, 0, 0, 0, 0, 0, 0, 0 }
 };
 
-static const int32_t hwopts[] = {
-       SR_CONF_CONN,
+static const uint32_t drvopts[] = {
+       SR_CONF_LOGIC_ANALYZER,
 };
 
-static const int32_t hwcaps[] = {
-       SR_CONF_LOGIC_ANALYZER,
-       SR_CONF_TRIGGER_MATCH,
-       SR_CONF_SAMPLERATE,
+static const uint32_t scanopts[] = {
+       SR_CONF_CONN,
+};
 
-       /* These are really implemented in the driver, not the hardware. */
-       SR_CONF_LIMIT_SAMPLES,
-       SR_CONF_CONTINUOUS,
+static const uint32_t devopts[] = {
+       SR_CONF_CONTINUOUS | SR_CONF_SET,
+       SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
+       SR_CONF_CONN | SR_CONF_GET,
+       SR_CONF_SAMPLERATE | 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 char *channel_names[] = {
@@ -141,9 +144,9 @@ static GSList *scan(GSList *options)
        struct libusb_device_descriptor des;
        libusb_device **devlist;
        struct libusb_device_handle *hdl;
-       int devcnt, num_logic_channels, ret, i, j;
+       int num_logic_channels, ret, i, j;
        const char *conn;
-       char manufacturer[64], product[64];
+       char manufacturer[64], product[64], serial_num[64], connection_id[64];
 
        drvc = di->priv;
 
@@ -208,6 +211,18 @@ static GSList *scan(GSList *options)
                        continue;
                }
 
+               if (des.iSerialNumber == 0) {
+                       serial_num[0] = '\0';
+               } else if ((ret = libusb_get_string_descriptor_ascii(hdl,
+                               des.iSerialNumber, (unsigned char *) serial_num,
+                               sizeof(serial_num))) < 0) {
+                       sr_warn("Failed to get serial number string descriptor: %s.",
+                               libusb_error_name(ret));
+                       continue;
+               }
+
+               usb_get_port_path(devlist[i], connection_id, sizeof(connection_id));
+
                libusb_close(hdl);
 
                prof = NULL;
@@ -227,24 +242,26 @@ static GSList *scan(GSList *options)
                if (!prof)
                        continue;
 
-               devcnt = g_slist_length(drvc->instances);
-               sdi = sr_dev_inst_new(devcnt, SR_ST_INITIALIZING,
-                       prof->vendor, prof->model, prof->model_version);
-               if (!sdi)
-                       return NULL;
+               sdi = g_malloc0(sizeof(struct sr_dev_inst));
+               sdi->status = SR_ST_INITIALIZING;
+               sdi->vendor = g_strdup(prof->vendor);
+               sdi->model = g_strdup(prof->model);
+               sdi->version = g_strdup(prof->model_version);
                sdi->driver = di;
+               sdi->serial_num = g_strdup(serial_num);
+               sdi->connection_id = g_strdup(connection_id);
 
                /* Fill in channellist according to this device's profile. */
                num_logic_channels = prof->dev_caps & DEV_CAPS_16BIT ? 16 : 8;
                for (j = 0; j < num_logic_channels; j++) {
-                       if (!(ch = sr_channel_new(j, SR_CHANNEL_LOGIC, TRUE,
-                                       channel_names[j])))
-                               return NULL;
+                       ch = sr_channel_new(j, SR_CHANNEL_LOGIC, TRUE,
+                                       channel_names[j]);
                        sdi->channels = g_slist_append(sdi->channels, ch);
                }
 
                devc = fx2lafw_dev_new();
                devc->profile = prof;
+               devc->sample_wide = (prof->dev_caps & DEV_CAPS_16BIT) != 0;
                sdi->priv = devc;
                drvc->instances = g_slist_append(drvc->instances, sdi);
                devices = g_slist_append(devices, sdi);
@@ -263,7 +280,9 @@ static GSList *scan(GSList *options)
                                devc->fw_updated = g_get_monotonic_time();
                        else
                                sr_err("Firmware upload failed for "
-                                      "device %d.", devcnt);
+                                      "device %d.%d (logical).",
+                                      libusb_get_bus_number(devlist[i]),
+                                      libusb_get_device_address(devlist[i]));
                        sdi->inst_type = SR_INST_USB;
                        sdi->conn = sr_usb_dev_inst_new(libusb_get_bus_number(devlist[i]),
                                        0xff, NULL);
@@ -359,8 +378,8 @@ static int dev_close(struct sr_dev_inst *sdi)
        if (usb->devhdl == NULL)
                return SR_ERR;
 
-       sr_info("fx2lafw: Closing device %d on %d.%d interface %d.",
-               sdi->index, usb->bus, usb->address, USB_INTERFACE);
+       sr_info("fx2lafw: Closing device on %d.%d (logical) / %s (physical) interface %d.",
+               usb->bus, usb->address, sdi->connection_id, USB_INTERFACE);
        libusb_release_interface(usb->devhdl, USB_INTERFACE);
        libusb_close(usb->devhdl);
        usb->devhdl = NULL;
@@ -385,7 +404,7 @@ static int cleanup(void)
        return ret;
 }
 
-static int config_get(int id, GVariant **data, const struct sr_dev_inst *sdi,
+static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
                const struct sr_channel_group *cg)
 {
        struct dev_context *devc;
@@ -399,7 +418,7 @@ static int config_get(int id, GVariant **data, const struct sr_dev_inst *sdi,
 
        devc = sdi->priv;
 
-       switch (id) {
+       switch (key) {
        case SR_CONF_CONN:
                if (!sdi->conn)
                        return SR_ERR_ARG;
@@ -417,6 +436,9 @@ static int config_get(int id, GVariant **data, const struct sr_dev_inst *sdi,
        case SR_CONF_SAMPLERATE:
                *data = g_variant_new_uint64(devc->cur_samplerate);
                break;
+       case SR_CONF_CAPTURE_RATIO:
+               *data = g_variant_new_uint64(devc->capture_ratio);
+               break;
        default:
                return SR_ERR_NA;
        }
@@ -424,10 +446,12 @@ static int config_get(int id, GVariant **data, const struct sr_dev_inst *sdi,
        return SR_OK;
 }
 
-static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi,
+static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
                const struct sr_channel_group *cg)
 {
        struct dev_context *devc;
+       uint64_t arg;
+       unsigned int i;
        int ret;
 
        (void)cg;
@@ -442,14 +466,29 @@ static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi,
 
        ret = SR_OK;
 
-       switch (id)
-       {
+       switch (key) {
                case SR_CONF_SAMPLERATE:
-                       devc->cur_samplerate = g_variant_get_uint64(data);
+                       arg = g_variant_get_uint64(data);
+                       for (i = 0; i < ARRAY_SIZE(samplerates); i++) {
+                               if (samplerates[i] == arg) {
+                                       devc->cur_samplerate = arg;
+                                       break;
+                               }
+                       }
+                       if (i == ARRAY_SIZE(samplerates))
+                               ret = SR_ERR_ARG;
                        break;
                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);
+                       if (devc->capture_ratio > 100) {
+                               devc->capture_ratio = 0;
+                               ret = SR_ERR;
+                       } else
+                               ret = SR_OK;
+                       break;
                default:
                        ret = SR_ERR_NA;
        }
@@ -457,7 +496,7 @@ static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi,
        return ret;
 }
 
-static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi,
+static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
                const struct sr_channel_group *cg)
 {
        GVariant *gvar;
@@ -468,12 +507,16 @@ static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi,
 
        switch (key) {
        case SR_CONF_SCAN_OPTIONS:
-               *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
-                               hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t));
+               *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
+                               scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
                break;
        case SR_CONF_DEVICE_OPTIONS:
-               *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
-                               hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t));
+               if (!sdi)
+                       *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
+                                       drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
+               else
+                       *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
+                                       devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
                break;
        case SR_CONF_SAMPLERATE:
                g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
@@ -536,7 +579,12 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
        devc->empty_transfer_count = 0;
 
        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 == NULL)
+                       return SR_ERR_MALLOC;
                devc->trigger_fired = FALSE;
        } else
                devc->trigger_fired = TRUE;