]> sigrok.org Git - libsigrok.git/blobdiff - hardware/zeroplus-logic-cube/zeroplus.c
sr: change all drivers to use SR_DF_META_LOGIC
[libsigrok.git] / hardware / zeroplus-logic-cube / zeroplus.c
index 722aed6f50bcd8f8fd7a42c5ae356118e48803ce..d27fb39bda4a6c797ad4e2e8d0ce0e05523653f6 100644 (file)
 #include "analyzer.h"
 
 #define USB_VENDOR                     0x0c12
-#define USB_VENDOR_NAME                        "Zeroplus"
-#define USB_MODEL_NAME                 "Logic Cube"
-#define USB_MODEL_VERSION              ""
 
+#define VENDOR_NAME                    "ZEROPLUS"
+#define MODEL_NAME                     "Logic Cube LAP-C"
+#define MODEL_VERSION                  NULL
+
+#define NUM_PROBES                     16
 #define USB_INTERFACE                  0
 #define USB_CONFIGURATION              1
 #define NUM_TRIGGER_STAGES             4
@@ -63,7 +65,7 @@ static model_t zeroplus_models[] = {
        {0x7016, "LAP-C(162000)", 16, 2048, 200},
 };
 
-static int capabilities[] = {
+static int hwcaps[] = {
        SR_HWCAP_LOGIC_ANALYZER,
        SR_HWCAP_SAMPLERATE,
        SR_HWCAP_PROBECONFIG,
@@ -74,43 +76,31 @@ static int capabilities[] = {
        0,
 };
 
-static const char *probe_names[] = {
-       "0",
-       "1",
-       "2",
-       "3",
-       "4",
-       "5",
-       "6",
-       "7",
-       "8",
-       "9",
-       "10",
-       "11",
-       "12",
-       "13",
-       "14",
-       "15",
-       "16",
-       "17",
-       "18",
-       "19",
-       "20",
-       "21",
-       "22",
-       "23",
-       "24",
-       "25",
-       "26",
-       "27",
-       "28",
-       "29",
-       "30",
-       "31",
+/*
+ * ZEROPLUS LAP-C (16032) numbers the 16 probes A0-A7 and B0-B7.
+ * We currently ignore other untested/unsupported devices here.
+ */
+static const char *probe_names[NUM_PROBES + 1] = {
+       "A0",
+       "A1",
+       "A2",
+       "A3",
+       "A4",
+       "A5",
+       "A6",
+       "A7",
+       "B0",
+       "B1",
+       "B2",
+       "B3",
+       "B4",
+       "B5",
+       "B6",
+       "B7",
        NULL,
 };
 
-/* List of struct sr_dev_inst, maintained by opendev()/closedev(). */
+/* List of struct sr_dev_inst, maintained by dev_open()/dev_close(). */
 static GSList *dev_insts = NULL;
 
 static libusb_context *usb_context = NULL;
@@ -147,13 +137,14 @@ static uint64_t supported_samplerates[] = {
 };
 
 static struct sr_samplerates samplerates = {
-       SR_HZ(0),
-       SR_HZ(0),
-       SR_HZ(0),
+       0,
+       0,
+       0,
        supported_samplerates,
 };
 
-struct zp {
+/* Private, per-device-instance driver context. */
+struct context {
        uint64_t cur_samplerate;
        uint64_t limit_samples;
        int num_channels; /* TODO: This isn't initialized before it's needed :( */
@@ -166,7 +157,7 @@ struct zp {
        struct sr_usb_dev_inst *usb;
 };
 
-static int hw_set_configuration(int device_index, int capability, void *value);
+static int hw_dev_config_set(int dev_index, int hwcap, void *value);
 
 static unsigned int get_memory_size(int type)
 {
@@ -185,53 +176,53 @@ static unsigned int get_memory_size(int type)
 static int opendev4(struct sr_dev_inst **sdi, libusb_device *dev,
                    struct libusb_device_descriptor *des)
 {
-       struct zp *zp;
+       struct context *ctx;
        unsigned int i;
-       int err;
+       int ret;
 
        /* Note: sdi is non-NULL, the caller already checked this. */
 
-       if (!(zp = (*sdi)->priv)) {
+       if (!(ctx = (*sdi)->priv)) {
                sr_err("zp: %s: (*sdi)->priv was NULL", __func__);
                return -1;
        }
 
-       if ((err = libusb_get_device_descriptor(dev, des))) {
-               sr_err("zp: failed to get device descriptor: %d", err);
+       if ((ret = libusb_get_device_descriptor(dev, des))) {
+               sr_err("zp: failed to get device descriptor: %d", ret);
                return -1;
        }
 
        if (des->idVendor != USB_VENDOR)
                return 0;
 
-       if (libusb_get_bus_number(dev) == zp->usb->bus
-           && libusb_get_device_address(dev) == zp->usb->address) {
+       if (libusb_get_bus_number(dev) == ctx->usb->bus
+           && libusb_get_device_address(dev) == ctx->usb->address) {
 
                for (i = 0; i < ARRAY_SIZE(zeroplus_models); i++) {
                        if (!(des->idProduct == zeroplus_models[i].pid))
                                continue;
 
-                       sr_info("zp: Found ZeroPlus device 0x%04x (%s)",
+                       sr_info("zp: Found ZEROPLUS device 0x%04x (%s)",
                                des->idProduct, zeroplus_models[i].model_name);
-                       zp->num_channels = zeroplus_models[i].channels;
-                       zp->memory_size = zeroplus_models[i].sample_depth * 1024;
+                       ctx->num_channels = zeroplus_models[i].channels;
+                       ctx->memory_size = zeroplus_models[i].sample_depth * 1024;
                        break;
                }
 
-               if (zp->num_channels == 0) {
-                       sr_err("zp: Unknown ZeroPlus device 0x%04x",
+               if (ctx->num_channels == 0) {
+                       sr_err("zp: Unknown ZEROPLUS device 0x%04x",
                               des->idProduct);
                        return -2;
                }
 
                /* Found it. */
-               if (!(err = libusb_open(dev, &(zp->usb->devhdl)))) {
+               if (!(ret = libusb_open(dev, &(ctx->usb->devhdl)))) {
                        (*sdi)->status = SR_ST_ACTIVE;
                        sr_info("zp: opened device %d on %d.%d interface %d",
-                               (*sdi)->index, zp->usb->bus,
-                               zp->usb->address, USB_INTERFACE);
+                               (*sdi)->index, ctx->usb->bus,
+                               ctx->usb->address, USB_INTERFACE);
                } else {
-                       sr_err("zp: failed to open device: %d", err);
+                       sr_err("zp: failed to open device: %d", ret);
                        *sdi = NULL;
                }
        }
@@ -239,14 +230,14 @@ static int opendev4(struct sr_dev_inst **sdi, libusb_device *dev,
        return 0;
 }
 
-static struct sr_dev_inst *zp_open_device(int device_index)
+static struct sr_dev_inst *zp_open_dev(int dev_index)
 {
        struct sr_dev_inst *sdi;
        libusb_device **devlist;
        struct libusb_device_descriptor des;
-       int err, i;
+       int i;
 
-       if (!(sdi = sr_dev_inst_get(dev_insts, device_index)))
+       if (!(sdi = sr_dev_inst_get(dev_insts, dev_index)))
                return NULL;
 
        libusb_get_device_list(usb_context, &devlist);
@@ -255,7 +246,7 @@ static struct sr_dev_inst *zp_open_device(int device_index)
                libusb_get_device_list(usb_context, &devlist);
                for (i = 0; devlist[i]; i++) {
                        /* TODO: Error handling. */
-                       err = opendev4(&sdi, devlist[i], &des);
+                       opendev4(&sdi, devlist[i], &des);
                }
        } else {
                /* Status must be SR_ST_ACTIVE, i.e. already in use... */
@@ -269,43 +260,43 @@ static struct sr_dev_inst *zp_open_device(int device_index)
        return sdi;
 }
 
-static void close_device(struct sr_dev_inst *sdi)
+static void close_dev(struct sr_dev_inst *sdi)
 {
-       struct zp *zp;
+       struct context *ctx;
 
-       if (!(zp = sdi->priv)) {
+       if (!(ctx = sdi->priv)) {
                sr_err("zp: %s: sdi->priv was NULL", __func__);
                return; /* FIXME */
        }
 
-       if (!zp->usb->devhdl)
+       if (!ctx->usb->devhdl)
                return;
 
        sr_info("zp: closing device %d on %d.%d interface %d", sdi->index,
-               zp->usb->bus, zp->usb->address, USB_INTERFACE);
-       libusb_release_interface(zp->usb->devhdl, USB_INTERFACE);
-       libusb_reset_device(zp->usb->devhdl);
-       libusb_close(zp->usb->devhdl);
-       zp->usb->devhdl = NULL;
+               ctx->usb->bus, ctx->usb->address, USB_INTERFACE);
+       libusb_release_interface(ctx->usb->devhdl, USB_INTERFACE);
+       libusb_reset_device(ctx->usb->devhdl);
+       libusb_close(ctx->usb->devhdl);
+       ctx->usb->devhdl = NULL;
        /* TODO: Call libusb_exit() here or only in hw_cleanup()? */
        sdi->status = SR_ST_INACTIVE;
 }
 
 static int configure_probes(struct sr_dev_inst *sdi, GSList *probes)
 {
-       struct zp *zp;
+       struct context *ctx;
        struct sr_probe *probe;
        GSList *l;
        int probe_bit, stage, i;
        char *tc;
 
        /* Note: sdi and sdi->priv are non-NULL, the caller checked this. */
-       zp = sdi->priv;
+       ctx = sdi->priv;
 
-       zp->probe_mask = 0;
+       ctx->probe_mask = 0;
        for (i = 0; i < NUM_TRIGGER_STAGES; i++) {
-               zp->trigger_mask[i] = 0;
-               zp->trigger_value[i] = 0;
+               ctx->trigger_mask[i] = 0;
+               ctx->trigger_value[i] = 0;
        }
 
        stage = -1;
@@ -314,14 +305,14 @@ static int configure_probes(struct sr_dev_inst *sdi, GSList *probes)
                if (probe->enabled == FALSE)
                        continue;
                probe_bit = 1 << (probe->index - 1);
-               zp->probe_mask |= probe_bit;
+               ctx->probe_mask |= probe_bit;
 
                if (probe->trigger) {
                        stage = 0;
                        for (tc = probe->trigger; *tc; tc++) {
-                               zp->trigger_mask[stage] |= probe_bit;
+                               ctx->trigger_mask[stage] |= probe_bit;
                                if (*tc == '1')
-                                       zp->trigger_value[stage] |= probe_bit;
+                                       ctx->trigger_value[stage] |= probe_bit;
                                stage++;
                                if (stage > NUM_TRIGGER_STAGES)
                                        return SR_ERR;
@@ -336,69 +327,70 @@ static int configure_probes(struct sr_dev_inst *sdi, GSList *probes)
  * API callbacks
  */
 
-static int hw_init(const char *deviceinfo)
+static int hw_init(const char *devinfo)
 {
        struct sr_dev_inst *sdi;
        struct libusb_device_descriptor des;
        libusb_device **devlist;
-       int err, devcnt, i;
-       struct zp *zp;
+       int ret, devcnt, i;
+       struct context *ctx;
 
        /* Avoid compiler warnings. */
-       (void)deviceinfo;
+       (void)devinfo;
 
        /* Allocate memory for our private driver context. */
-       if (!(zp = g_try_malloc(sizeof(struct zp)))) {
-               sr_err("zp: %s: struct zp malloc failed", __func__);
+       if (!(ctx = g_try_malloc(sizeof(struct context)))) {
+               sr_err("zp: %s: ctx malloc failed", __func__);
                return 0;
        }
 
        /* Set some sane defaults. */
-       zp->cur_samplerate = 0;
-       zp->limit_samples = 0;
-       zp->num_channels = 32; /* TODO: This isn't initialized before it's needed :( */
-       zp->memory_size = 0;
-       zp->probe_mask = 0;
-       memset(zp->trigger_mask, 0, NUM_TRIGGER_STAGES);
-       memset(zp->trigger_value, 0, NUM_TRIGGER_STAGES);
-       // memset(zp->trigger_buffer, 0, NUM_TRIGGER_STAGES);
+       ctx->cur_samplerate = 0;
+       ctx->limit_samples = 0;
+       /* TODO: num_channels isn't initialized before it's needed :( */
+       ctx->num_channels = NUM_PROBES;
+       ctx->memory_size = 0;
+       ctx->probe_mask = 0;
+       memset(ctx->trigger_mask, 0, NUM_TRIGGER_STAGES);
+       memset(ctx->trigger_value, 0, NUM_TRIGGER_STAGES);
+       // memset(ctx->trigger_buffer, 0, NUM_TRIGGER_STAGES);
 
        if (libusb_init(&usb_context) != 0) {
                sr_err("zp: Failed to initialize USB.");
                return 0;
        }
 
-       /* Find all ZeroPlus analyzers and add them to device list. */
+       /* Find all ZEROPLUS analyzers and add them to device list. */
        devcnt = 0;
        libusb_get_device_list(usb_context, &devlist); /* TODO: Errors. */
 
        for (i = 0; devlist[i]; i++) {
-               err = libusb_get_device_descriptor(devlist[i], &des);
-               if (err != 0) {
-                       sr_err("zp: failed to get device descriptor: %d", err);
+               ret = libusb_get_device_descriptor(devlist[i], &des);
+               if (ret != 0) {
+                       sr_err("zp: failed to get device descriptor: %d", ret);
                        continue;
                }
 
                if (des.idVendor == USB_VENDOR) {
                        /*
-                        * Definitely a Zeroplus.
+                        * Definitely a ZEROPLUS.
                         * TODO: Any way to detect specific model/version in
-                        * the zeroplus range?
+                        * the ZEROPLUS range?
                         */
                        /* Register the device with libsigrok. */
                        if (!(sdi = sr_dev_inst_new(devcnt,
-                                       SR_ST_INACTIVE, USB_VENDOR_NAME,
-                                       USB_MODEL_NAME, USB_MODEL_VERSION))) {
+                                       SR_ST_INACTIVE, VENDOR_NAME,
+                                       MODEL_NAME, MODEL_VERSION))) {
                                sr_err("zp: %s: sr_dev_inst_new failed",
                                       __func__);
                                return 0;
                        }
 
-                       sdi->priv = zp;
+                       sdi->priv = ctx;
 
                        dev_insts =
                            g_slist_append(dev_insts, sdi);
-                       zp->usb = sr_usb_dev_inst_new(
+                       ctx->usb = sr_usb_dev_inst_new(
                                libusb_get_bus_number(devlist[i]),
                                libusb_get_device_address(devlist[i]), NULL);
                        devcnt++;
@@ -409,39 +401,39 @@ static int hw_init(const char *deviceinfo)
        return devcnt;
 }
 
-static int hw_opendev(int device_index)
+static int hw_dev_open(int dev_index)
 {
        struct sr_dev_inst *sdi;
-       struct zp *zp;
-       int err;
+       struct context *ctx;
+       int ret;
 
-       if (!(sdi = zp_open_device(device_index))) {
+       if (!(sdi = zp_open_dev(dev_index))) {
                sr_err("zp: unable to open device");
                return SR_ERR;
        }
 
-       /* TODO: Note: sdi is retrieved in zp_open_device(). */
+       /* TODO: Note: sdi is retrieved in zp_open_dev(). */
 
-       if (!(zp = sdi->priv)) {
+       if (!(ctx = sdi->priv)) {
                sr_err("zp: %s: sdi->priv was NULL", __func__);
                return SR_ERR_ARG;
        }
 
-       err = libusb_set_configuration(zp->usb->devhdl, USB_CONFIGURATION);
-       if (err < 0) {
+       ret = libusb_set_configuration(ctx->usb->devhdl, USB_CONFIGURATION);
+       if (ret < 0) {
                sr_err("zp: Unable to set USB configuration %d: %d",
-                      USB_CONFIGURATION, err);
+                      USB_CONFIGURATION, ret);
                return SR_ERR;
        }
 
-       err = libusb_claim_interface(zp->usb->devhdl, USB_INTERFACE);
-       if (err != 0) {
-               sr_err("zp: Unable to claim interface: %d", err);
+       ret = libusb_claim_interface(ctx->usb->devhdl, USB_INTERFACE);
+       if (ret != 0) {
+               sr_err("zp: Unable to claim interface: %d", ret);
                return SR_ERR;
        }
 
-       analyzer_reset(zp->usb->devhdl);
-       analyzer_initialize(zp->usb->devhdl);
+       analyzer_reset(ctx->usb->devhdl);
+       analyzer_initialize(ctx->usb->devhdl);
 
        analyzer_set_memory_size(MEMORY_SIZE_512K);
        // analyzer_set_freq(g_freq, g_freq_scale);
@@ -460,9 +452,9 @@ static int hw_opendev(int device_index)
 #endif
        analyzer_set_compression(COMPRESSION_NONE);
 
-       if (zp->cur_samplerate == 0) {
+       if (ctx->cur_samplerate == 0) {
                /* Samplerate hasn't been set. Default to the slowest one. */
-               if (hw_set_configuration(device_index, SR_HWCAP_SAMPLERATE,
+               if (hw_dev_config_set(dev_index, SR_HWCAP_SAMPLERATE,
                     &samplerates.list[0]) == SR_ERR)
                        return SR_ERR;
        }
@@ -470,17 +462,17 @@ static int hw_opendev(int device_index)
        return SR_OK;
 }
 
-static int hw_closedev(int device_index)
+static int hw_dev_close(int dev_index)
 {
        struct sr_dev_inst *sdi;
 
-       if (!(sdi = sr_dev_inst_get(dev_insts, device_index))) {
+       if (!(sdi = sr_dev_inst_get(dev_insts, dev_index))) {
                sr_err("zp: %s: sdi was NULL", __func__);
                return SR_ERR; /* TODO: SR_ERR_ARG? */
        }
 
        /* TODO */
-       close_device(sdi);
+       close_dev(sdi);
 
        return SR_OK;
 }
@@ -493,7 +485,7 @@ static int hw_cleanup(void)
        for (l = dev_insts; l; l = l->next) {
                sdi = l->data;
                /* Properly close all devices... */
-               close_device(sdi);
+               close_dev(sdi);
                /* ...and free all their memory. */
                sr_dev_inst_free(sdi);
        }
@@ -507,40 +499,51 @@ static int hw_cleanup(void)
        return SR_OK;
 }
 
-static void *hw_get_device_info(int device_index, int device_info_id)
+static void *hw_dev_info_get(int dev_index, int dev_info_id)
 {
        struct sr_dev_inst *sdi;
-       struct zp *zp;
+       struct context *ctx;
        void *info;
 
-       if (!(sdi = sr_dev_inst_get(dev_insts, device_index))) {
+       if (!(sdi = sr_dev_inst_get(dev_insts, dev_index))) {
                sr_err("zp: %s: sdi was NULL", __func__);
                return NULL;
        }
 
-       if (!(zp = sdi->priv)) {
+       if (!(ctx = sdi->priv)) {
                sr_err("zp: %s: sdi->priv was NULL", __func__);
                return NULL;
        }
 
-       switch (device_info_id) {
-       case SR_DI_INSTANCE:
+       sr_spew("zp: %s: dev_index %d, dev_info_id %d.", __func__,
+               dev_index, dev_info_id);
+
+       switch (dev_info_id) {
+       case SR_DI_INST:
                info = sdi;
+               sr_spew("zp: %s: Returning sdi.", __func__);
                break;
        case SR_DI_NUM_PROBES:
-               info = GINT_TO_POINTER(zp->num_channels);
+               info = GINT_TO_POINTER(ctx->num_channels);
+               sr_spew("zp: %s: Returning number of probes: %d.", __func__,
+                       NUM_PROBES);
                break;
        case SR_DI_PROBE_NAMES:
                info = probe_names;
+               sr_spew("zp: %s: Returning probenames.", __func__);
                break;
        case SR_DI_SAMPLERATES:
                info = &samplerates;
+               sr_spew("zp: %s: Returning samplerates.", __func__);
                break;
        case SR_DI_TRIGGER_TYPES:
                info = TRIGGER_TYPES;
+               sr_spew("zp: %s: Returning triggertypes: %s.", __func__, info);
                break;
        case SR_DI_CUR_SAMPLERATE:
-               info = &zp->cur_samplerate;
+               info = &ctx->cur_samplerate;
+               sr_spew("zp: %s: Returning samplerate: %" PRIu64 "Hz.",
+                       __func__, ctx->cur_samplerate);
                break;
        default:
                /* Unknown device info ID, return NULL. */
@@ -552,33 +555,32 @@ static void *hw_get_device_info(int device_index, int device_info_id)
        return info;
 }
 
-static int hw_get_status(int device_index)
+static int hw_dev_status_get(int dev_index)
 {
        struct sr_dev_inst *sdi;
 
-       sdi = sr_dev_inst_get(dev_insts, device_index);
+       sdi = sr_dev_inst_get(dev_insts, dev_index);
        if (sdi)
                return sdi->status;
        else
                return SR_ST_NOT_FOUND;
 }
 
-static int *hw_get_capabilities(void)
+static int *hw_hwcap_get_all(void)
 {
-       return capabilities;
+       return hwcaps;
 }
 
-static int set_configuration_samplerate(struct sr_dev_inst *sdi,
-                                       uint64_t samplerate)
+static int set_samplerate(struct sr_dev_inst *sdi, uint64_t samplerate)
 {
-       struct zp *zp;
+       struct context *ctx;
 
        if (!sdi) {
                sr_err("zp: %s: sdi was NULL", __func__);
                return SR_ERR_ARG;
        }
 
-       if (!(zp = sdi->priv)) {
+       if (!(ctx = sdi->priv)) {
                sr_err("zp: %s: sdi->priv was NULL", __func__);
                return SR_ERR_ARG;
        }
@@ -592,85 +594,88 @@ static int set_configuration_samplerate(struct sr_dev_inst *sdi,
        else
                analyzer_set_freq(samplerate, FREQ_SCALE_HZ);
 
-       zp->cur_samplerate = samplerate;
+       ctx->cur_samplerate = samplerate;
 
        return SR_OK;
 }
 
-static int hw_set_configuration(int device_index, int capability, void *value)
+static int hw_dev_config_set(int dev_index, int hwcap, void *value)
 {
        struct sr_dev_inst *sdi;
-       uint64_t *tmp_u64;
-       struct zp *zp;
+       struct context *ctx;
 
-       if (!(sdi = sr_dev_inst_get(dev_insts, device_index))) {
+       if (!(sdi = sr_dev_inst_get(dev_insts, dev_index))) {
                sr_err("zp: %s: sdi was NULL", __func__);
                return SR_ERR;
        }
 
-       if (!(zp = sdi->priv)) {
+       if (!(ctx = sdi->priv)) {
                sr_err("zp: %s: sdi->priv was NULL", __func__);
                return SR_ERR_ARG;
        }
 
-       switch (capability) {
+       switch (hwcap) {
        case SR_HWCAP_SAMPLERATE:
-               tmp_u64 = value;
-               return set_configuration_samplerate(sdi, *tmp_u64);
+               return set_samplerate(sdi, *(uint64_t *)value);
        case SR_HWCAP_PROBECONFIG:
                return configure_probes(sdi, (GSList *)value);
        case SR_HWCAP_LIMIT_SAMPLES:
-               tmp_u64 = value;
-               zp->limit_samples = *tmp_u64;
+               ctx->limit_samples = *(uint64_t *)value;
                return SR_OK;
        default:
                return SR_ERR;
        }
 }
 
-static int hw_start_acquisition(int device_index, gpointer session_data)
+static int hw_dev_acquisition_start(int dev_index, void *cb_data)
 {
        struct sr_dev_inst *sdi;
        struct sr_datafeed_packet packet;
        struct sr_datafeed_logic logic;
        struct sr_datafeed_header header;
+       struct sr_datafeed_meta_logic meta;
        uint64_t samples_read;
        int res;
        unsigned int packet_num;
        unsigned char *buf;
-       struct zp *zp;
+       struct context *ctx;
 
-       if (!(sdi = sr_dev_inst_get(dev_insts, device_index))) {
+       if (!(sdi = sr_dev_inst_get(dev_insts, dev_index))) {
                sr_err("zp: %s: sdi was NULL", __func__);
                return SR_ERR;
        }
 
-       if (!(zp = sdi->priv)) {
+       if (!(ctx = sdi->priv)) {
                sr_err("zp: %s: sdi->priv was NULL", __func__);
                return SR_ERR_ARG;
        }
 
        /* push configured settings to device */
-       analyzer_configure(zp->usb->devhdl);
+       analyzer_configure(ctx->usb->devhdl);
 
-       analyzer_start(zp->usb->devhdl);
+       analyzer_start(ctx->usb->devhdl);
        sr_info("zp: Waiting for data");
-       analyzer_wait_data(zp->usb->devhdl);
+       analyzer_wait_data(ctx->usb->devhdl);
 
        sr_info("zp: Stop address    = 0x%x",
-               analyzer_get_stop_address(zp->usb->devhdl));
+               analyzer_get_stop_address(ctx->usb->devhdl));
        sr_info("zp: Now address     = 0x%x",
-               analyzer_get_now_address(zp->usb->devhdl));
+               analyzer_get_now_address(ctx->usb->devhdl));
        sr_info("zp: Trigger address = 0x%x",
-               analyzer_get_trigger_address(zp->usb->devhdl));
+               analyzer_get_trigger_address(ctx->usb->devhdl));
 
        packet.type = SR_DF_HEADER;
        packet.payload = &header;
        header.feed_version = 1;
        gettimeofday(&header.starttime, NULL);
-       header.samplerate = zp->cur_samplerate;
-       header.num_logic_probes = zp->num_channels;
-       sr_session_bus(session_data, &packet);
+       sr_session_send(cb_data, &packet);
+
+       /* Send metadata about the SR_DF_LOGIC packets to come. */
+       packet.type = SR_DF_META_LOGIC;
+       packet.payload = &meta;
+       meta.samplerate = ctx->cur_samplerate;
+       meta.num_probes = ctx->num_channels;
+       sr_session_send(cb_data, &packet);
 
        if (!(buf = g_try_malloc(PACKET_SIZE))) {
                sr_err("zp: %s: buf malloc failed", __func__);
@@ -678,11 +683,11 @@ static int hw_start_acquisition(int device_index, gpointer session_data)
        }
 
        samples_read = 0;
-       analyzer_read_start(zp->usb->devhdl);
+       analyzer_read_start(ctx->usb->devhdl);
        /* Send the incoming transfer to the session bus. */
-       for (packet_num = 0; packet_num < (zp->memory_size * 4 / PACKET_SIZE);
+       for (packet_num = 0; packet_num < (ctx->memory_size * 4 / PACKET_SIZE);
             packet_num++) {
-               res = analyzer_read_data(zp->usb->devhdl, buf, PACKET_SIZE);
+               res = analyzer_read_data(ctx->usb->devhdl, buf, PACKET_SIZE);
                sr_info("zp: Tried to read %llx bytes, actually read %x bytes",
                        PACKET_SIZE, res);
 
@@ -691,56 +696,56 @@ static int hw_start_acquisition(int device_index, gpointer session_data)
                logic.length = PACKET_SIZE;
                logic.unitsize = 4;
                logic.data = buf;
-               sr_session_bus(session_data, &packet);
+               sr_session_send(cb_data, &packet);
                samples_read += res / 4;
        }
-       analyzer_read_stop(zp->usb->devhdl);
+       analyzer_read_stop(ctx->usb->devhdl);
        g_free(buf);
 
        packet.type = SR_DF_END;
-       sr_session_bus(session_data, &packet);
+       sr_session_send(cb_data, &packet);
 
        return SR_OK;
 }
 
-/* This stops acquisition on ALL devices, ignoring device_index. */
-static int hw_stop_acquisition(int device_index, gpointer session_device_id)
+/* TODO: This stops acquisition on ALL devices, ignoring dev_index. */
+static int hw_dev_acquisition_stop(int dev_index, void *cb_data)
 {
        struct sr_datafeed_packet packet;
        struct sr_dev_inst *sdi;
-       struct zp *zp;
+       struct context *ctx;
 
        packet.type = SR_DF_END;
-       sr_session_bus(session_device_id, &packet);
+       sr_session_send(cb_data, &packet);
 
-       if (!(sdi = sr_dev_inst_get(dev_insts, device_index))) {
+       if (!(sdi = sr_dev_inst_get(dev_insts, dev_index))) {
                sr_err("zp: %s: sdi was NULL", __func__);
                return SR_ERR_BUG;
        }
 
-       if (!(zp = sdi->priv)) {
+       if (!(ctx = sdi->priv)) {
                sr_err("zp: %s: sdi->priv was NULL", __func__);
                return SR_ERR_BUG;
        }
 
-       analyzer_reset(zp->usb->devhdl);
+       analyzer_reset(ctx->usb->devhdl);
        /* TODO: Need to cancel and free any queued up transfers. */
 
        return SR_OK;
 }
 
-SR_PRIV struct sr_device_plugin zeroplus_logic_cube_plugin_info = {
+SR_PRIV struct sr_dev_driver zeroplus_logic_cube_driver_info = {
        .name = "zeroplus-logic-cube",
-       .longname = "Zeroplus Logic Cube LAP-C series",
+       .longname = "ZEROPLUS Logic Cube LAP-C series",
        .api_version = 1,
        .init = hw_init,
        .cleanup = hw_cleanup,
-       .opendev = hw_opendev,
-       .closedev = hw_closedev,
-       .get_device_info = hw_get_device_info,
-       .get_status = hw_get_status,
-       .get_capabilities = hw_get_capabilities,
-       .set_configuration = hw_set_configuration,
-       .start_acquisition = hw_start_acquisition,
-       .stop_acquisition = hw_stop_acquisition,
+       .dev_open = hw_dev_open,
+       .dev_close = hw_dev_close,
+       .dev_info_get = hw_dev_info_get,
+       .dev_status_get = hw_dev_status_get,
+       .hwcap_get_all = hw_hwcap_get_all,
+       .dev_config_set = hw_dev_config_set,
+       .dev_acquisition_start = hw_dev_acquisition_start,
+       .dev_acquisition_stop = hw_dev_acquisition_stop,
 };