]> sigrok.org Git - libsigrok.git/blobdiff - hardware/fx2lafw/fx2lafw.c
fx2lafw: Support conn scan parameter
[libsigrok.git] / hardware / fx2lafw / fx2lafw.c
index 75b4557c9ebf70ada03b7497e7060b4c5bb45668..f76fa57f73020c9ec1c95249a1401be4e30e46c2 100644 (file)
@@ -1,7 +1,7 @@
 /*
  * This file is part of the sigrok project.
  *
- * Copyright (C) 2010-2012 Bert Vermeulen <bert@biot.com>
+ * Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
  * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
  *
  * This program is free software: you can redistribute it and/or modify
@@ -81,14 +81,14 @@ static const struct fx2lafw_profile supported_fx2[] = {
        { 0, 0, 0, 0, 0, 0, 0 }
 };
 
-static const int hwcaps[] = {
+static const int32_t hwcaps[] = {
        SR_CONF_LOGIC_ANALYZER,
+       SR_CONF_TRIGGER_TYPE,
        SR_CONF_SAMPLERATE,
 
        /* These are really implemented in the driver, not the hardware. */
        SR_CONF_LIMIT_SAMPLES,
        SR_CONF_CONTINUOUS,
-       0,
 };
 
 static const char *probe_names[] = {
@@ -97,7 +97,7 @@ static const char *probe_names[] = {
        NULL,
 };
 
-static const uint64_t supported_samplerates[] = {
+static const uint64_t samplerates[] = {
        SR_KHZ(20),
        SR_KHZ(25),
        SR_KHZ(50),
@@ -114,20 +114,11 @@ static const uint64_t supported_samplerates[] = {
        SR_MHZ(12),
        SR_MHZ(16),
        SR_MHZ(24),
-       0,
-};
-
-static const struct sr_samplerates samplerates = {
-       .low  = 0,
-       .high = 0,
-       .step = 0,
-       .list = supported_samplerates,
 };
 
 SR_PRIV struct sr_dev_driver fx2lafw_driver_info;
 static struct sr_dev_driver *di = &fx2lafw_driver_info;
 static int hw_dev_close(struct sr_dev_inst *sdi);
-static int config_set(int id, const void *value, const struct sr_dev_inst *sdi);
 static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data);
 
 /**
@@ -389,15 +380,18 @@ static int hw_init(struct sr_context *sr_ctx)
 
 static GSList *hw_scan(GSList *options)
 {
-       GSList *devices;
-       struct libusb_device_descriptor des;
-       struct sr_dev_inst *sdi;
-       const struct fx2lafw_profile *prof;
        struct drv_context *drvc;
        struct dev_context *devc;
+       struct sr_dev_inst *sdi;
+       struct sr_usb_dev_inst *usb;
        struct sr_probe *probe;
+       struct sr_config *src;
+       const struct fx2lafw_profile *prof;
+       GSList *l, *devices, *conn_devices;
+       struct libusb_device_descriptor des;
        libusb_device **devlist;
        int devcnt, num_logic_probes, ret, i, j;
+       const char *conn;
 
        (void)options;
 
@@ -406,13 +400,39 @@ static GSList *hw_scan(GSList *options)
        /* This scan always invalidates any previous scans. */
        clear_instances();
 
+       conn = NULL;
+       for (l = options; l; l = l->next) {
+               src = l->data;
+               switch (src->key) {
+               case SR_CONF_CONN:
+                       conn = g_variant_get_string(src->data, NULL);
+                       break;
+               }
+       }
+       if (conn)
+               conn_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn);
+       else
+               conn_devices = NULL;
+
        /* Find all fx2lafw compatible devices and upload firmware to them. */
        devices = NULL;
        libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);
        for (i = 0; devlist[i]; i++) {
+               if (conn) {
+                       usb = NULL;
+                       for (l = conn_devices; l; l = l->next) {
+                               usb = l->data;
+                               if (usb->bus == libusb_get_bus_number(devlist[i])
+                                       && usb->address == libusb_get_device_address(devlist[i]))
+                                       break;
+                       }
+                       if (!l)
+                               /* This device matched none of the ones that
+                                * matched the conn specification. */
+                               continue;
+               }
 
-               if ((ret = libusb_get_device_descriptor(
-                    devlist[i], &des)) != 0) {
+               if ((ret = libusb_get_device_descriptor( devlist[i], &des)) != 0) {
                        sr_warn("Failed to get device descriptor: %s.",
                                libusb_error_name(ret));
                        continue;
@@ -546,9 +566,7 @@ static int hw_dev_open(struct sr_dev_inst *sdi)
 
        if (devc->cur_samplerate == 0) {
                /* Samplerate hasn't been set; default to the slowest one. */
-               if (config_set(SR_CONF_SAMPLERATE, &supported_samplerates[0],
-                               sdi) == SR_ERR)
-                       return SR_ERR;
+               devc->cur_samplerate = samplerates[0];
        }
 
        return SR_OK;
@@ -559,6 +577,7 @@ static int hw_dev_close(struct sr_dev_inst *sdi)
        struct dev_context *devc;
 
        devc = sdi->priv;
+
        if (devc->usb->devhdl == NULL)
                return SR_ERR;
 
@@ -588,7 +607,7 @@ static int hw_cleanup(void)
        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)
 {
        struct dev_context *devc;
 
@@ -596,7 +615,7 @@ static int config_get(int id, const void **data, const struct sr_dev_inst *sdi)
        case SR_CONF_SAMPLERATE:
                if (sdi) {
                        devc = sdi->priv;
-                       *data = &devc->cur_samplerate;
+                       *data = g_variant_new_uint64(devc->cur_samplerate);
                } else
                        return SR_ERR;
                break;
@@ -607,7 +626,7 @@ static int config_get(int id, const void **data, const struct sr_dev_inst *sdi)
        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)
 {
        struct dev_context *devc;
        int ret;
@@ -615,10 +634,10 @@ static int config_set(int id, const void *value, const struct sr_dev_inst *sdi)
        devc = sdi->priv;
 
        if (id == SR_CONF_SAMPLERATE) {
-               devc->cur_samplerate = *(const uint64_t *)value;
+               devc->cur_samplerate = g_variant_get_uint64(data);
                ret = SR_OK;
        } else if (id == SR_CONF_LIMIT_SAMPLES) {
-               devc->limit_samples = *(const uint64_t *)value;
+               devc->limit_samples = g_variant_get_uint64(data);
                ret = SR_OK;
        } else {
                ret = SR_ERR;
@@ -627,20 +646,27 @@ static int config_set(int id, const void *value, const struct sr_dev_inst *sdi)
        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)
 {
+       GVariant *gvar;
+       GVariantBuilder gvb;
 
        (void)sdi;
 
        switch (key) {
        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;
        case SR_CONF_SAMPLERATE:
-               *data = &samplerates;
+               g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
+               gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), samplerates,
+                               ARRAY_SIZE(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 = TRIGGER_TYPE;
+               *data = g_variant_new_string(TRIGGER_TYPE);
                break;
        default:
                return SR_ERR_ARG;
@@ -687,7 +713,7 @@ static void finish_acquisition(struct dev_context *devc)
 
        /* Terminate session. */
        packet.type = SR_DF_END;
-       sr_session_send(devc->session_dev_id, &packet);
+       sr_session_send(devc->cb_data, &packet);
 
        /* Remove fds from polling. */
        lupfd = libusb_get_pollfds(drvc->sr_ctx->libusb_ctx);
@@ -819,7 +845,7 @@ static void receive_transfer(struct libusb_transfer *transfer)
                                         */
                                        packet.type = SR_DF_TRIGGER;
                                        packet.payload = NULL;
-                                       sr_session_send(devc->session_dev_id, &packet);
+                                       sr_session_send(devc->cb_data, &packet);
 
                                        /*
                                         * Send the samples that triggered it,
@@ -830,7 +856,7 @@ static void receive_transfer(struct libusb_transfer *transfer)
                                        logic.unitsize = sizeof(*devc->trigger_buffer);
                                        logic.length = devc->trigger_stage * logic.unitsize;
                                        logic.data = devc->trigger_buffer;
-                                       sr_session_send(devc->session_dev_id, &packet);
+                                       sr_session_send(devc->cb_data, &packet);
 
                                        devc->trigger_stage = TRIGGER_FIRED;
                                        break;
@@ -860,7 +886,7 @@ static void receive_transfer(struct libusb_transfer *transfer)
                logic.length = transfer->actual_length - trigger_offset_bytes;
                logic.unitsize = sample_width;
                logic.data = cur_buf + trigger_offset_bytes;
-               sr_session_send(devc->session_dev_id, &packet);
+               sr_session_send(devc->cb_data, &packet);
 
                devc->num_samples += cur_sample_count;
                if (devc->limit_samples &&
@@ -922,8 +948,6 @@ static unsigned int get_timeout(struct dev_context *devc)
 static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
                void *cb_data)
 {
-       struct sr_datafeed_packet packet;
-       struct sr_datafeed_header header;
        struct dev_context *devc;
        struct drv_context *drvc;
        struct libusb_transfer *transfer;
@@ -944,7 +968,7 @@ static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
                return SR_ERR;
        }
 
-       devc->session_dev_id = cb_data;
+       devc->cb_data = cb_data;
        devc->num_samples = 0;
        devc->empty_transfer_count = 0;
 
@@ -987,11 +1011,8 @@ static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
                              timeout, receive_data, NULL);
        free(lupfd); /* NOT g_free()! */
 
-       packet.type = SR_DF_HEADER;
-       packet.payload = &header;
-       header.feed_version = 1;
-       gettimeofday(&header.starttime, NULL);
-       sr_session_send(cb_data, &packet);
+       /* Send header packet to the session bus. */
+       std_session_send_df_header(cb_data, DRIVER_LOG_DOMAIN);
 
        if ((ret = command_start_acquisition(devc->usb->devhdl,
                devc->cur_samplerate, devc->sample_wide)) != SR_OK) {