/*
- * This file is part of the sigrok project.
+ * This file is part of the libsigrok project.
*
- * Copyright (C) 2011-2012 Uwe Hermann <uwe@hermann-uwe.de>
+ * Copyright (C) 2011-2014 Uwe Hermann <uwe@hermann-uwe.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#include <ftdi.h>
-#include <glib.h>
-#include <string.h>
-#include "libsigrok.h"
-#include "libsigrok-internal.h"
-#include "driver.h"
+#include "protocol.h"
SR_PRIV struct sr_dev_driver chronovu_la8_driver_info;
-static struct sr_dev_driver *cdi = &chronovu_la8_driver_info;
+static struct sr_dev_driver *di = &chronovu_la8_driver_info;
-/*
- * The ChronoVu LA8 can have multiple PIDs. Older versions shipped with
- * a standard FTDI USB VID/PID of 0403:6001, newer ones have 0403:8867.
- */
-static const uint16_t usb_pids[] = {
- 0x6001,
- 0x8867,
+static const int32_t hwcaps[] = {
+ SR_CONF_LOGIC_ANALYZER,
+ SR_CONF_SAMPLERATE,
+ SR_CONF_LIMIT_MSEC, /* TODO: Not yet implemented. */
+ SR_CONF_LIMIT_SAMPLES, /* TODO: Not yet implemented. */
+};
+
+/* The ChronoVu LA8/LA16 can have multiple VID/PID pairs. */
+static struct {
+ uint16_t vid;
+ uint16_t pid;
+ int model;
+ const char *iproduct;
+} vid_pid[] = {
+ { 0x0403, 0x6001, CHRONOVU_LA8, "ChronoVu LA8" },
+ { 0x0403, 0x8867, CHRONOVU_LA8, "ChronoVu LA8" },
+ { 0x0403, 0x6001, CHRONOVU_LA16, "ChronoVu LA16" },
+ { 0x0403, 0x8867, CHRONOVU_LA16, "ChronoVu LA16" },
};
-/* Function prototypes. */
-static int hw_dev_acquisition_stop(int dev_index, void *cb_data);
+static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data);
-static void clear_instances(void)
+static void clear_helper(void *priv)
{
- GSList *l;
- struct sr_dev_inst *sdi;
- struct context *ctx;
-
- /* Properly close all devices. */
- for (l = cdi->instances; l; l = l->next) {
- if (!(sdi = l->data)) {
- /* Log error, but continue cleaning up the rest. */
- sr_err("la8: %s: sdi was NULL, continuing", __func__);
- continue;
- }
- if (sdi->priv) {
- ctx = sdi->priv;
- ftdi_free(ctx->ftdic);
- g_free(ctx);
- }
- sr_dev_inst_free(sdi);
- }
- g_slist_free(cdi->instances);
- cdi->instances = NULL;
+ struct dev_context *devc;
+
+ devc = priv;
+ ftdi_free(devc->ftdic);
+ g_free(devc->final_buf);
}
-static int hw_init(void)
+static int dev_clear(void)
{
+ return std_dev_clear(di, clear_helper);
+}
- /* Nothing to do. */
-
- return SR_OK;
+static int init(struct sr_context *sr_ctx)
+{
+ return std_init(sr_ctx, di, LOG_PREFIX);
}
-static GSList *hw_scan(GSList *options)
+static int add_device(int idx, int model, GSList **devices)
{
int ret;
+ unsigned int i;
struct sr_dev_inst *sdi;
- struct context *ctx;
- GSList *devices;
+ struct drv_context *drvc;
+ struct dev_context *devc;
+ struct sr_channel *ch;
- (void)options;
- devices = NULL;
+ ret = SR_OK;
- /* Allocate memory for our private driver context. */
- if (!(ctx = g_try_malloc(sizeof(struct context)))) {
- sr_err("la8: %s: struct context malloc failed", __func__);
- goto err_free_nothing;
- }
+ drvc = di->priv;
+
+ /* Allocate memory for our private device context. */
+ devc = g_try_malloc(sizeof(struct dev_context));
/* Set some sane defaults. */
- ctx->ftdic = NULL;
- ctx->cur_samplerate = SR_MHZ(100); /* 100MHz == max. samplerate */
- ctx->limit_msec = 0;
- ctx->limit_samples = 0;
- ctx->session_dev_id = NULL;
- memset(ctx->mangled_buf, 0, BS);
- ctx->final_buf = NULL;
- ctx->trigger_pattern = 0x00; /* Value irrelevant, see trigger_mask. */
- ctx->trigger_mask = 0x00; /* All probes are "don't care". */
- ctx->trigger_timeout = 10; /* Default to 10s trigger timeout. */
- ctx->trigger_found = 0;
- ctx->done = 0;
- ctx->block_counter = 0;
- ctx->divcount = 0; /* 10ns sample period == 100MHz samplerate */
- ctx->usb_pid = 0;
+ devc->prof = &cv_profiles[model];
+ devc->ftdic = NULL; /* Will be set in the open() API call. */
+ devc->cur_samplerate = 0; /* Set later (different for LA8/LA16). */
+ devc->limit_msec = 0;
+ devc->limit_samples = 0;
+ devc->cb_data = NULL;
+ memset(devc->mangled_buf, 0, BS);
+ devc->final_buf = NULL;
+ devc->trigger_pattern = 0x0000; /* Irrelevant, see trigger_mask. */
+ devc->trigger_mask = 0x0000; /* All channels: "don't care". */
+ devc->trigger_edgemask = 0x0000; /* All channels: "state triggered". */
+ devc->trigger_found = 0;
+ devc->done = 0;
+ devc->block_counter = 0;
+ devc->divcount = 0;
+ devc->usb_vid = vid_pid[idx].vid;
+ devc->usb_pid = vid_pid[idx].pid;
+ memset(devc->samplerates, 0, sizeof(uint64_t) * 255);
/* Allocate memory where we'll store the de-mangled data. */
- if (!(ctx->final_buf = g_try_malloc(SDRAM_SIZE))) {
- sr_err("la8: %s: final_buf malloc failed", __func__);
- goto err_free_ctx;
+ if (!(devc->final_buf = g_try_malloc(SDRAM_SIZE))) {
+ sr_err("Failed to allocate memory for sample buffer.");
+ ret = SR_ERR_MALLOC;
+ goto err_free_devc;
}
- /* Allocate memory for the FTDI context (ftdic) and initialize it. */
- if (!(ctx->ftdic = ftdi_new())) {
- sr_err("la8: %s: ftdi_new failed", __func__);
+ /* We now know the device, set its max. samplerate as default. */
+ devc->cur_samplerate = devc->prof->max_samplerate;
+
+ /* Register the device with libsigrok. */
+ sdi = sr_dev_inst_new(0, SR_ST_INITIALIZING,
+ "ChronoVu", devc->prof->modelname, NULL);
+ if (!sdi) {
+ sr_err("Failed to create device instance.");
+ ret = SR_ERR;
goto err_free_final_buf;
}
+ sdi->driver = di;
+ sdi->priv = devc;
- /* Check for the device and temporarily open it. */
- for (i = 0; i < ARRAY_SIZE(usb_pids); i++) {
- sr_dbg("la8: Probing for VID/PID %04x:%04x.", USB_VENDOR_ID,
- usb_pids[i]);
- ret = ftdi_usb_open_desc(ctx->ftdic, USB_VENDOR_ID,
- usb_pids[i], USB_DESCRIPTION, NULL);
- if (ret == 0) {
- sr_dbg("la8: Found LA8 device (%04x:%04x).",
- USB_VENDOR_ID, usb_pids[i]);
- ctx->usb_pid = usb_pids[i];
+ for (i = 0; i < devc->prof->num_channels; i++) {
+ if (!(ch = sr_channel_new(i, SR_CHANNEL_LOGIC, TRUE,
+ cv_channel_names[i]))) {
+ ret = SR_ERR;
+ goto err_free_dev_inst;
}
+ sdi->channels = g_slist_append(sdi->channels, ch);
}
- if (ctx->usb_pid == 0)
- goto err_free_ftdic;
+ *devices = g_slist_append(*devices, sdi);
+ drvc->instances = g_slist_append(drvc->instances, sdi);
- /* Register the device with libsigrok. */
- sdi = sr_dev_inst_new(0, SR_ST_INITIALIZING,
- USB_VENDOR_NAME, USB_MODEL_NAME, USB_MODEL_VERSION);
- if (!sdi) {
- sr_err("la8: %s: sr_dev_inst_new failed", __func__);
- goto err_close_ftdic;
+ return SR_OK;
+
+err_free_dev_inst:
+ sr_dev_inst_free(sdi);
+err_free_final_buf:
+ g_free(devc->final_buf);
+err_free_devc:
+ g_free(devc);
+
+ return ret;
+}
+
+static GSList *scan(GSList *options)
+{
+ int ret;
+ unsigned int i;
+ GSList *devices;
+ struct ftdi_context *ftdic;
+
+ (void)options;
+
+ devices = NULL;
+
+ /* Allocate memory for the FTDI context and initialize it. */
+ if (!(ftdic = ftdi_new())) {
+ sr_err("Failed to initialize libftdi.");
+ return NULL;
}
- sdi->priv = ctx;
+ /* Check for LA8 and/or LA16 devices with various VID/PIDs. */
+ for (i = 0; i < ARRAY_SIZE(vid_pid); i++) {
+ ret = ftdi_usb_open_desc(ftdic, vid_pid[i].vid,
+ vid_pid[i].pid, vid_pid[i].iproduct, NULL);
+ if (ret < 0)
+ continue; /* No device found. */
- devices = g_slist_append(devices, sdi);
- cdi->instances = g_slist_append(cdi->instances, sdi);
+ sr_dbg("Found %s device (%04x:%04x).",
+ vid_pid[i].iproduct, vid_pid[i].vid, vid_pid[i].pid);
- sr_spew("la8: Device init successful.");
+ if ((ret = add_device(i, vid_pid[i].model, &devices)) < 0)
+ sr_dbg("Failed to add device: %d.", ret);
- /* Close device. We'll reopen it again when we need it. */
- (void) la8_close(ctx); /* Log, but ignore errors. */
+ if ((ret = ftdi_usb_close(ftdic)) < 0)
+ sr_dbg("Failed to close FTDI device (%d): %s.",
+ ret, ftdi_get_error_string(ftdic));
+ }
- return devices;
+ /* Close USB device, deinitialize and free the FTDI context. */
+ ftdi_free(ftdic);
+ ftdic = NULL;
-err_close_ftdic:
- (void) la8_close(ctx); /* Log, but ignore errors. */
-err_free_ftdic:
- free(ctx->ftdic); /* NOT g_free()! */
-err_free_final_buf:
- g_free(ctx->final_buf);
-err_free_ctx:
- g_free(ctx);
-err_free_nothing:
+ return devices;
+}
- return NULL;
+static GSList *dev_list(void)
+{
+ return ((struct drv_context *)(di->priv))->instances;
}
-static int hw_dev_open(int dev_index)
+static int dev_open(struct sr_dev_inst *sdi)
{
+ struct dev_context *devc;
int ret;
- struct sr_dev_inst *sdi;
- struct context *ctx;
- if (!(sdi = sr_dev_inst_get(cdi->instances, dev_index))) {
- sr_err("la8: %s: sdi was NULL", __func__);
- return SR_ERR_BUG;
- }
+ ret = SR_ERR;
- if (!(ctx = sdi->priv)) {
- sr_err("la8: %s: sdi->priv was NULL", __func__);
+ if (!(devc = sdi->priv))
return SR_ERR_BUG;
+
+ /* Allocate memory for the FTDI context and initialize it. */
+ if (!(devc->ftdic = ftdi_new())) {
+ sr_err("Failed to initialize libftdi.");
+ return SR_ERR;
}
- sr_dbg("la8: Opening LA8 device (%04x:%04x).", USB_VENDOR_ID,
- ctx->usb_pid);
+ sr_dbg("Opening %s device (%04x:%04x).", devc->prof->modelname,
+ devc->usb_vid, devc->usb_pid);
/* Open the device. */
- if ((ret = ftdi_usb_open_desc(ctx->ftdic, USB_VENDOR_ID,
- ctx->usb_pid, USB_DESCRIPTION, NULL)) < 0) {
- sr_err("la8: %s: ftdi_usb_open_desc: (%d) %s",
- __func__, ret, ftdi_get_error_string(ctx->ftdic));
- (void) la8_close_usb_reset_sequencer(ctx); /* Ignore errors. */
- return SR_ERR;
+ if ((ret = ftdi_usb_open_desc(devc->ftdic, devc->usb_vid,
+ devc->usb_pid, devc->prof->iproduct, NULL)) < 0) {
+ sr_err("Failed to open FTDI device (%d): %s.",
+ ret, ftdi_get_error_string(devc->ftdic));
+ goto err_ftdi_free;
}
- sr_dbg("la8: Device opened successfully.");
+ sr_dbg("Device opened successfully.");
/* Purge RX/TX buffers in the FTDI chip. */
- if ((ret = ftdi_usb_purge_buffers(ctx->ftdic)) < 0) {
- sr_err("la8: %s: ftdi_usb_purge_buffers: (%d) %s",
- __func__, ret, ftdi_get_error_string(ctx->ftdic));
- (void) la8_close_usb_reset_sequencer(ctx); /* Ignore errors. */
- goto err_dev_open_close_ftdic;
+ if ((ret = ftdi_usb_purge_buffers(devc->ftdic)) < 0) {
+ sr_err("Failed to purge FTDI buffers (%d): %s.",
+ ret, ftdi_get_error_string(devc->ftdic));
+ goto err_ftdi_free;
}
- sr_dbg("la8: FTDI buffers purged successfully.");
+ sr_dbg("FTDI buffers purged successfully.");
/* Enable flow control in the FTDI chip. */
- if ((ret = ftdi_setflowctrl(ctx->ftdic, SIO_RTS_CTS_HS)) < 0) {
- sr_err("la8: %s: ftdi_setflowcontrol: (%d) %s",
- __func__, ret, ftdi_get_error_string(ctx->ftdic));
- (void) la8_close_usb_reset_sequencer(ctx); /* Ignore errors. */
- goto err_dev_open_close_ftdic;
+ if ((ret = ftdi_setflowctrl(devc->ftdic, SIO_RTS_CTS_HS)) < 0) {
+ sr_err("Failed to enable FTDI flow control (%d): %s.",
+ ret, ftdi_get_error_string(devc->ftdic));
+ goto err_ftdi_free;
}
- sr_dbg("la8: FTDI flow control enabled successfully.");
+ sr_dbg("FTDI flow control enabled successfully.");
/* Wait 100ms. */
g_usleep(100 * 1000);
return SR_OK;
-err_dev_open_close_ftdic:
- (void) la8_close(ctx); /* Log, but ignore errors. */
- return SR_ERR;
+err_ftdi_free:
+ ftdi_free(devc->ftdic); /* Close device (if open), free FTDI context. */
+ devc->ftdic = NULL;
+ return ret;
}
-static int hw_dev_close(int dev_index)
+static int dev_close(struct sr_dev_inst *sdi)
{
- struct sr_dev_inst *sdi;
- struct context *ctx;
-
- if (!(sdi = sr_dev_inst_get(cdi->instances, dev_index))) {
- sr_err("la8: %s: sdi was NULL", __func__);
- return SR_ERR_BUG;
- }
-
- if (!(ctx = sdi->priv)) {
- sr_err("la8: %s: sdi->priv was NULL", __func__);
- return SR_ERR_BUG;
- }
+ int ret;
+ struct dev_context *devc;
- sr_dbg("la8: Closing device.");
+ if (sdi->status != SR_ST_ACTIVE)
+ return SR_OK;
- if (sdi->status == SR_ST_ACTIVE) {
- sr_dbg("la8: Status ACTIVE, closing device.");
- /* TODO: Really ignore errors here, or return SR_ERR? */
- (void) la8_close_usb_reset_sequencer(ctx); /* Ignore errors. */
- } else {
- sr_spew("la8: Status not ACTIVE, nothing to do.");
- }
+ devc = sdi->priv;
+ if (devc->ftdic && (ret = ftdi_usb_close(devc->ftdic)) < 0)
+ sr_err("Failed to close FTDI device (%d): %s.",
+ ret, ftdi_get_error_string(devc->ftdic));
sdi->status = SR_ST_INACTIVE;
- sr_dbg("la8: Freeing sample buffer.");
- g_free(ctx->final_buf);
-
return SR_OK;
}
-static int hw_cleanup(void)
+static int cleanup(void)
{
-
- clear_instances();
-
- return SR_OK;
+ return dev_clear();
}
-static const void *hw_dev_info_get(int dev_index, int dev_info_id)
+static int config_get(int id, GVariant **data, const struct sr_dev_inst *sdi,
+ const struct sr_channel_group *cg)
{
- struct sr_dev_inst *sdi;
- struct context *ctx;
- const void *info;
-
- if (!(sdi = sr_dev_inst_get(cdi->instances, dev_index))) {
- sr_err("la8: %s: sdi was NULL", __func__);
- return NULL;
- }
+ struct dev_context *devc;
- if (!(ctx = sdi->priv)) {
- sr_err("la8: %s: sdi->priv was NULL", __func__);
- return NULL;
- }
+ (void)cg;
- sr_spew("la8: %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("la8: %s: Returning sdi.", __func__);
- break;
- case SR_DI_NUM_PROBES:
- info = GINT_TO_POINTER(NUM_PROBES);
- sr_spew("la8: %s: Returning number of probes: %d.", __func__,
- NUM_PROBES);
- break;
- case SR_DI_PROBE_NAMES:
- info = probe_names;
- sr_spew("la8: %s: Returning probenames.", __func__);
- break;
- case SR_DI_SAMPLERATES:
- fill_supported_samplerates_if_needed();
- info = &samplerates;
- sr_spew("la8: %s: Returning samplerates.", __func__);
- break;
- case SR_DI_TRIGGER_TYPES:
- info = TRIGGER_TYPES;
- sr_spew("la8: %s: Returning trigger types: %s.", __func__,
- TRIGGER_TYPES);
- break;
- case SR_DI_CUR_SAMPLERATE:
- info = &ctx->cur_samplerate;
- sr_spew("la8: %s: Returning samplerate: %" PRIu64 "Hz.",
- __func__, ctx->cur_samplerate);
+ switch (id) {
+ case SR_CONF_SAMPLERATE:
+ if (!sdi || !(devc = sdi->priv))
+ return SR_ERR_BUG;
+ *data = g_variant_new_uint64(devc->cur_samplerate);
break;
default:
- /* Unknown device info ID, return NULL. */
- sr_err("la8: %s: Unknown device info ID", __func__);
- info = NULL;
- break;
+ return SR_ERR_NA;
}
- return info;
+ return SR_OK;
}
-static int hw_dev_status_get(int dev_index)
+static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi,
+ const struct sr_channel_group *cg)
{
- struct sr_dev_inst *sdi;
+ struct dev_context *devc;
- if (!(sdi = sr_dev_inst_get(cdi->instances, dev_index))) {
- sr_err("la8: %s: sdi was NULL, device not found", __func__);
- return SR_ST_NOT_FOUND;
- }
+ (void)cg;
- sr_dbg("la8: Returning status: %d.", sdi->status);
+ if (sdi->status != SR_ST_ACTIVE)
+ return SR_ERR_DEV_CLOSED;
- return sdi->status;
-}
+ if (!(devc = sdi->priv))
+ return SR_ERR_BUG;
-static const int *hw_hwcap_get_all(void)
-{
- sr_spew("la8: Returning list of device capabilities.");
+ switch (id) {
+ case SR_CONF_SAMPLERATE:
+ if (cv_set_samplerate(sdi, g_variant_get_uint64(data)) < 0)
+ return SR_ERR;
+ break;
+ case SR_CONF_LIMIT_MSEC:
+ if (g_variant_get_uint64(data) == 0)
+ return SR_ERR_ARG;
+ devc->limit_msec = g_variant_get_uint64(data);
+ break;
+ case SR_CONF_LIMIT_SAMPLES:
+ if (g_variant_get_uint64(data) == 0)
+ return SR_ERR_ARG;
+ devc->limit_samples = g_variant_get_uint64(data);
+ break;
+ default:
+ return SR_ERR_NA;
+ }
- return hwcaps;
+ return SR_OK;
}
-static int hw_dev_config_set(int dev_index, int hwcap, const void *value)
+static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi,
+ const struct sr_channel_group *cg)
{
- struct sr_dev_inst *sdi;
- struct context *ctx;
+ GVariant *gvar, *grange[2];
+ GVariantBuilder gvb;
+ struct dev_context *devc;
- if (!(sdi = sr_dev_inst_get(cdi->instances, dev_index))) {
- sr_err("la8: %s: sdi was NULL", __func__);
- return SR_ERR_BUG;
- }
-
- if (!(ctx = sdi->priv)) {
- sr_err("la8: %s: sdi->priv was NULL", __func__);
- return SR_ERR_BUG;
- }
-
- sr_spew("la8: %s: dev_index %d, hwcap %d", __func__, dev_index, hwcap);
+ (void)cg;
- switch (hwcap) {
- case SR_HWCAP_SAMPLERATE:
- if (set_samplerate(sdi, *(const uint64_t *)value) == SR_ERR) {
- sr_err("la8: %s: setting samplerate failed.", __func__);
- return SR_ERR;
- }
- sr_dbg("la8: SAMPLERATE = %" PRIu64, ctx->cur_samplerate);
+ switch (key) {
+ 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_HWCAP_PROBECONFIG:
- if (configure_probes(ctx, (const GSList *)value) != SR_OK) {
- sr_err("la8: %s: probe config failed.", __func__);
- return SR_ERR;
- }
+ case SR_CONF_SAMPLERATE:
+ if (!sdi || !sdi->priv || !(devc = sdi->priv))
+ return SR_ERR_BUG;
+ cv_fill_samplerates_if_needed(sdi);
+ g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
+ gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"),
+ devc->samplerates,
+ ARRAY_SIZE(devc->samplerates),
+ sizeof(uint64_t));
+ g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar);
+ *data = g_variant_builder_end(&gvb);
break;
- case SR_HWCAP_LIMIT_MSEC:
- if (*(const uint64_t *)value == 0) {
- sr_err("la8: %s: LIMIT_MSEC can't be 0.", __func__);
- return SR_ERR;
- }
- ctx->limit_msec = *(const uint64_t *)value;
- sr_dbg("la8: LIMIT_MSEC = %" PRIu64, ctx->limit_msec);
+ case SR_CONF_LIMIT_SAMPLES:
+ grange[0] = g_variant_new_uint64(0);
+ grange[1] = g_variant_new_uint64(MAX_NUM_SAMPLES);
+ *data = g_variant_new_tuple(grange, 2);
break;
- case SR_HWCAP_LIMIT_SAMPLES:
- if (*(const uint64_t *)value < MIN_NUM_SAMPLES) {
- sr_err("la8: %s: LIMIT_SAMPLES too small.", __func__);
- return SR_ERR;
- }
- ctx->limit_samples = *(const uint64_t *)value;
- sr_dbg("la8: LIMIT_SAMPLES = %" PRIu64, ctx->limit_samples);
+ case SR_CONF_TRIGGER_TYPE:
+ if (!sdi || !sdi->priv || !(devc = sdi->priv) || !devc->prof)
+ return SR_ERR_BUG;
+ *data = g_variant_new_string(devc->prof->trigger_type);
break;
default:
- /* Unknown capability, return SR_ERR. */
- sr_err("la8: %s: Unknown capability.", __func__);
- return SR_ERR;
- break;
+ return SR_ERR_NA;
}
return SR_OK;
{
int i, ret;
struct sr_dev_inst *sdi;
- struct context *ctx;
+ struct dev_context *devc;
- /* Avoid compiler errors. */
(void)fd;
(void)revents;
if (!(sdi = cb_data)) {
- sr_err("la8: %s: cb_data was NULL", __func__);
+ sr_err("cb_data was NULL.");
return FALSE;
}
- if (!(ctx = sdi->priv)) {
- sr_err("la8: %s: sdi->priv was NULL", __func__);
+ if (!(devc = sdi->priv)) {
+ sr_err("sdi->priv was NULL.");
return FALSE;
}
- if (!ctx->ftdic) {
- sr_err("la8: %s: ctx->ftdic was NULL", __func__);
+ if (!devc->ftdic) {
+ sr_err("devc->ftdic was NULL.");
return FALSE;
}
/* Get one block of data. */
- if ((ret = la8_read_block(ctx)) < 0) {
- sr_err("la8: %s: la8_read_block error: %d", __func__, ret);
- hw_dev_acquisition_stop(sdi->index, sdi);
+ if ((ret = cv_read_block(devc)) < 0) {
+ sr_err("Failed to read data block: %d.", ret);
+ dev_acquisition_stop(sdi, sdi);
return FALSE;
}
/* We need to get exactly NUM_BLOCKS blocks (i.e. 8MB) of data. */
- if (ctx->block_counter != (NUM_BLOCKS - 1)) {
- ctx->block_counter++;
+ if (devc->block_counter != (NUM_BLOCKS - 1)) {
+ devc->block_counter++;
return TRUE;
}
- sr_dbg("la8: Sampling finished, sending data to session bus now.");
+ sr_dbg("Sampling finished, sending data to session bus now.");
/* All data was received and demangled, send it to the session bus. */
for (i = 0; i < NUM_BLOCKS; i++)
- send_block_to_session_bus(ctx, i);
+ cv_send_block_to_session_bus(devc, i);
- hw_dev_acquisition_stop(sdi->index, sdi);
+ dev_acquisition_stop(sdi, sdi);
- // return FALSE; /* FIXME? */
return TRUE;
}
-static int hw_dev_acquisition_start(int dev_index, void *cb_data)
+static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
{
- struct sr_dev_inst *sdi;
- struct context *ctx;
- struct sr_datafeed_packet packet;
- struct sr_datafeed_header header;
- struct sr_datafeed_meta_logic meta;
- uint8_t buf[4];
- int bytes_written;
+ struct dev_context *devc;
+ uint8_t buf[8];
+ int bytes_to_write, bytes_written;
- if (!(sdi = sr_dev_inst_get(cdi->instances, dev_index))) {
- sr_err("la8: %s: sdi was NULL", __func__);
- return SR_ERR_BUG;
- }
+ if (sdi->status != SR_ST_ACTIVE)
+ return SR_ERR_DEV_CLOSED;
- if (!(ctx = sdi->priv)) {
- sr_err("la8: %s: sdi->priv was NULL", __func__);
+ if (!(devc = sdi->priv)) {
+ sr_err("sdi->priv was NULL.");
return SR_ERR_BUG;
}
- if (!ctx->ftdic) {
- sr_err("la8: %s: ctx->ftdic was NULL", __func__);
+ if (!devc->ftdic) {
+ sr_err("devc->ftdic was NULL.");
return SR_ERR_BUG;
}
- ctx->divcount = samplerate_to_divcount(ctx->cur_samplerate);
- if (ctx->divcount == 0xff) {
- sr_err("la8: %s: invalid divcount/samplerate", __func__);
+ devc->divcount = cv_samplerate_to_divcount(sdi, devc->cur_samplerate);
+ if (devc->divcount == 0xff) {
+ sr_err("Invalid divcount/samplerate.");
return SR_ERR;
}
- sr_dbg("la8: Starting acquisition.");
+ if (cv_configure_channels(sdi) != SR_OK) {
+ sr_err("Failed to configure channels.");
+ return SR_ERR;
+ }
/* Fill acquisition parameters into buf[]. */
- buf[0] = ctx->divcount;
- buf[1] = 0xff; /* This byte must always be 0xff. */
- buf[2] = ctx->trigger_pattern;
- buf[3] = ctx->trigger_mask;
+ if (devc->prof->model == CHRONOVU_LA8) {
+ buf[0] = devc->divcount;
+ buf[1] = 0xff; /* This byte must always be 0xff. */
+ buf[2] = devc->trigger_pattern & 0xff;
+ buf[3] = devc->trigger_mask & 0xff;
+ bytes_to_write = 4;
+ } else {
+ buf[0] = devc->divcount;
+ buf[1] = 0xff; /* This byte must always be 0xff. */
+ buf[2] = (devc->trigger_pattern & 0xff00) >> 8; /* LSB */
+ buf[3] = (devc->trigger_pattern & 0x00ff) >> 0; /* MSB */
+ buf[4] = (devc->trigger_mask & 0xff00) >> 8; /* LSB */
+ buf[5] = (devc->trigger_mask & 0x00ff) >> 0; /* MSB */
+ buf[6] = (devc->trigger_edgemask & 0xff00) >> 8; /* LSB */
+ buf[7] = (devc->trigger_edgemask & 0x00ff) >> 0; /* MSB */
+ bytes_to_write = 8;
+ }
/* Start acquisition. */
- bytes_written = la8_write(ctx, buf, 4);
+ bytes_written = cv_write(devc, buf, bytes_to_write);
- if (bytes_written < 0) {
- sr_err("la8: Acquisition failed to start.");
+ if (bytes_written < 0 || bytes_written != bytes_to_write) {
+ sr_err("Acquisition failed to start.");
return SR_ERR;
- } else if (bytes_written != 4) {
- sr_err("la8: Acquisition failed to start.");
- return SR_ERR; /* TODO: Other error and return code? */
}
- sr_dbg("la8: Acquisition started successfully.");
+ sr_dbg("Hardware acquisition started successfully.");
- ctx->session_dev_id = cb_data;
+ devc->cb_data = cb_data;
/* Send header packet to the session bus. */
- sr_dbg("la8: Sending SR_DF_HEADER.");
- packet.type = SR_DF_HEADER;
- packet.payload = &header;
- header.feed_version = 1;
- gettimeofday(&header.starttime, NULL);
- sr_session_send(ctx->session_dev_id, &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 = NUM_PROBES;
- sr_session_send(ctx->session_dev_id, &packet);
+ std_session_send_df_header(cb_data, LOG_PREFIX);
/* Time when we should be done (for detecting trigger timeouts). */
- ctx->done = (ctx->divcount + 1) * 0.08388608 + time(NULL)
- + ctx->trigger_timeout;
- ctx->block_counter = 0;
- ctx->trigger_found = 0;
+ devc->done = (devc->divcount + 1) * devc->prof->trigger_constant +
+ g_get_monotonic_time() + (10 * G_TIME_SPAN_SECOND);
+ devc->block_counter = 0;
+ devc->trigger_found = 0;
- /* Hook up a dummy handler to receive data from the LA8. */
- sr_source_add(-1, G_IO_IN, 0, receive_data, sdi);
+ /* Hook up a dummy handler to receive data from the device. */
+ sr_source_add(-1, G_IO_IN, 0, receive_data, (void *)sdi);
return SR_OK;
}
-static int hw_dev_acquisition_stop(int dev_index, void *cb_data)
+static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
{
- struct sr_dev_inst *sdi;
- struct context *ctx;
struct sr_datafeed_packet packet;
- sr_dbg("la8: Stopping acquisition.");
+ (void)sdi;
- if (!(sdi = sr_dev_inst_get(cdi->instances, dev_index))) {
- sr_err("la8: %s: sdi was NULL", __func__);
- return SR_ERR_BUG;
- }
-
- if (!(ctx = sdi->priv)) {
- sr_err("la8: %s: sdi->priv was NULL", __func__);
- return SR_ERR_BUG;
- }
+ sr_dbg("Stopping acquisition.");
+ sr_source_remove(-1);
/* Send end packet to the session bus. */
- sr_dbg("la8: Sending SR_DF_END.");
+ sr_dbg("Sending SR_DF_END.");
packet.type = SR_DF_END;
sr_session_send(cb_data, &packet);
.name = "chronovu-la8",
.longname = "ChronoVu LA8",
.api_version = 1,
- .init = hw_init,
- .cleanup = hw_cleanup,
- .scan = hw_scan,
- .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,
- .instances = NULL,
+ .init = init,
+ .cleanup = cleanup,
+ .scan = scan,
+ .dev_list = dev_list,
+ .dev_clear = dev_clear,
+ .config_get = config_get,
+ .config_set = config_set,
+ .config_list = config_list,
+ .dev_open = dev_open,
+ .dev_close = dev_close,
+ .dev_acquisition_start = dev_acquisition_start,
+ .dev_acquisition_stop = dev_acquisition_stop,
+ .priv = NULL,
};
projects / libsigrok.git / blobdiff