/*
* 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 "protocol.h"
SR_PRIV struct sr_dev_driver chronovu_la8_driver_info;
* Min: 1 sample per 0.01us -> sample time is 0.084s, samplerate 100MHz
* Max: 1 sample per 2.55us -> sample time is 21.391s, samplerate 392.15kHz
*/
-SR_PRIV uint64_t chronovu_la8_samplerates[255] = { 0 };
+SR_PRIV uint64_t cv_samplerates[255] = { 0 };
-/* Note: Continuous sampling is not supported by the hardware. */
-SR_PRIV const int32_t chronovu_la8_hwcaps[] = {
+SR_PRIV const int32_t cv_hwcaps[] = {
SR_CONF_LOGIC_ANALYZER,
SR_CONF_SAMPLERATE,
SR_CONF_LIMIT_MSEC, /* TODO: Not yet implemented. */
0x8867,
};
-/* Function prototypes. */
static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data);
static void clear_helper(void *priv)
{
struct dev_context *devc;
-
+
devc = priv;
ftdi_free(devc->ftdic);
devices = NULL;
/* Allocate memory for our private device context. */
- if (!(devc = g_try_malloc(sizeof(struct dev_context)))) {
- sr_err("Device context malloc failed.");
- goto err_free_nothing;
- }
+ devc = g_try_malloc(sizeof(struct dev_context));
/* Set some sane defaults. */
devc->ftdic = NULL;
/* Allocate memory where we'll store the de-mangled data. */
if (!(devc->final_buf = g_try_malloc(SDRAM_SIZE))) {
- sr_err("final_buf malloc failed.");
+ sr_err("Failed to allocate memory for sample buffer.");
goto err_free_devc;
}
/* Allocate memory for the FTDI context (ftdic) and initialize it. */
if (!(devc->ftdic = ftdi_new())) {
- sr_err("%s: ftdi_new failed.", __func__);
+ sr_err("Failed to initialize libftdi.");
goto err_free_final_buf;
}
sdi = sr_dev_inst_new(0, SR_ST_INITIALIZING,
USB_VENDOR_NAME, USB_MODEL_NAME, USB_MODEL_VERSION);
if (!sdi) {
- sr_err("%s: sr_dev_inst_new failed.", __func__);
+ sr_err("Failed to create device instance.");
goto err_close_ftdic;
}
sdi->driver = di;
sdi->priv = devc;
- for (i = 0; chronovu_la8_channel_names[i]; i++) {
+ for (i = 0; cv_channel_names[i]; i++) {
if (!(ch = sr_channel_new(i, SR_CHANNEL_LOGIC, TRUE,
- chronovu_la8_channel_names[i])))
+ cv_channel_names[i])))
return NULL;
sdi->channels = g_slist_append(sdi->channels, ch);
}
drvc->instances = g_slist_append(drvc->instances, sdi);
/* Close device. We'll reopen it again when we need it. */
- (void) la8_close(devc); /* Log, but ignore errors. */
+ (void) cv_close(devc); /* Log, but ignore errors. */
return devices;
err_close_ftdic:
- (void) la8_close(devc); /* Log, but ignore errors. */
+ (void) cv_close(devc); /* Log, but ignore errors. */
err_free_ftdic:
ftdi_free(devc->ftdic); /* NOT free() or g_free()! */
err_free_final_buf:
struct dev_context *devc;
int ret;
- if (!(devc = sdi->priv)) {
- sr_err("%s: sdi->priv was NULL.", __func__);
+ if (!(devc = sdi->priv))
return SR_ERR_BUG;
- }
sr_dbg("Opening LA8 device (%04x:%04x).", USB_VENDOR_ID,
devc->usb_pid);
/* Open the device. */
if ((ret = ftdi_usb_open_desc(devc->ftdic, USB_VENDOR_ID,
devc->usb_pid, USB_DESCRIPTION, NULL)) < 0) {
- sr_err("%s: ftdi_usb_open_desc: (%d) %s",
- __func__, ret, ftdi_get_error_string(devc->ftdic));
- (void) la8_close_usb_reset_sequencer(devc); /* Ignore errors. */
+ sr_err("Failed to open FTDI device (%d): %s.",
+ ret, ftdi_get_error_string(devc->ftdic));
+ (void) cv_close_usb_reset_sequencer(devc); /* Ignore errors. */
return SR_ERR;
}
sr_dbg("Device opened successfully.");
/* Purge RX/TX buffers in the FTDI chip. */
if ((ret = ftdi_usb_purge_buffers(devc->ftdic)) < 0) {
- sr_err("%s: ftdi_usb_purge_buffers: (%d) %s",
- __func__, ret, ftdi_get_error_string(devc->ftdic));
- (void) la8_close_usb_reset_sequencer(devc); /* Ignore errors. */
+ sr_err("Failed to purge FTDI buffers (%d): %s.",
+ ret, ftdi_get_error_string(devc->ftdic));
+ (void) cv_close_usb_reset_sequencer(devc); /* Ignore errors. */
goto err_dev_open_close_ftdic;
}
sr_dbg("FTDI buffers purged successfully.");
/* Enable flow control in the FTDI chip. */
if ((ret = ftdi_setflowctrl(devc->ftdic, SIO_RTS_CTS_HS)) < 0) {
- sr_err("%s: ftdi_setflowcontrol: (%d) %s",
- __func__, ret, ftdi_get_error_string(devc->ftdic));
- (void) la8_close_usb_reset_sequencer(devc); /* Ignore errors. */
+ sr_err("Failed to enable FTDI flow control (%d): %s.",
+ ret, ftdi_get_error_string(devc->ftdic));
+ (void) cv_close_usb_reset_sequencer(devc); /* Ignore errors. */
goto err_dev_open_close_ftdic;
}
sr_dbg("FTDI flow control enabled successfully.");
return SR_OK;
err_dev_open_close_ftdic:
- (void) la8_close(devc); /* Log, but ignore errors. */
+ (void) cv_close(devc); /* Log, but ignore errors. */
return SR_ERR;
}
if (sdi->status == SR_ST_ACTIVE) {
sr_dbg("Status ACTIVE, closing device.");
- (void) la8_close_usb_reset_sequencer(devc); /* Ignore errors. */
+ (void) cv_close_usb_reset_sequencer(devc); /* Ignore errors. */
} else {
sr_spew("Status not ACTIVE, nothing to do.");
}
switch (id) {
case SR_CONF_SAMPLERATE:
- if (sdi) {
- devc = sdi->priv;
- *data = g_variant_new_uint64(devc->cur_samplerate);
- sr_spew("%s: Returning samplerate: %" PRIu64 "Hz.",
- __func__, devc->cur_samplerate);
- } else
- return SR_ERR;
+ if (!sdi || !(devc = sdi->priv))
+ return SR_ERR_BUG;
+ *data = g_variant_new_uint64(devc->cur_samplerate);
break;
default:
return SR_ERR_NA;
if (sdi->status != SR_ST_ACTIVE)
return SR_ERR_DEV_CLOSED;
- if (!(devc = sdi->priv)) {
- sr_err("%s: sdi->priv was NULL.", __func__);
+ if (!(devc = sdi->priv))
return SR_ERR_BUG;
- }
switch (id) {
case SR_CONF_SAMPLERATE:
- if (set_samplerate(sdi, g_variant_get_uint64(data)) == SR_ERR) {
- sr_err("%s: setting samplerate failed.", __func__);
+ if (set_samplerate(sdi, g_variant_get_uint64(data)) < 0)
return SR_ERR;
- }
- sr_dbg("SAMPLERATE = %" PRIu64, devc->cur_samplerate);
break;
case SR_CONF_LIMIT_MSEC:
- if (g_variant_get_uint64(data) == 0) {
- sr_err("%s: LIMIT_MSEC can't be 0.", __func__);
- return SR_ERR;
- }
+ if (g_variant_get_uint64(data) == 0)
+ return SR_ERR_ARG;
devc->limit_msec = g_variant_get_uint64(data);
- sr_dbg("LIMIT_MSEC = %" PRIu64, devc->limit_msec);
break;
case SR_CONF_LIMIT_SAMPLES:
- if (g_variant_get_uint64(data) < MIN_NUM_SAMPLES) {
- sr_err("%s: LIMIT_SAMPLES too small.", __func__);
- return SR_ERR;
- }
+ if (g_variant_get_uint64(data) == 0)
+ return SR_ERR_ARG;
devc->limit_samples = g_variant_get_uint64(data);
- sr_dbg("LIMIT_SAMPLES = %" PRIu64, devc->limit_samples);
break;
default:
return SR_ERR_NA;
switch (key) {
case SR_CONF_DEVICE_OPTIONS:
*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
- chronovu_la8_hwcaps,
- ARRAY_SIZE(chronovu_la8_hwcaps),
+ cv_hwcaps, ARRAY_SIZE(cv_hwcaps),
sizeof(int32_t));
break;
case SR_CONF_SAMPLERATE:
- fill_supported_samplerates_if_needed();
+ cv_fill_samplerates_if_needed();
g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"),
- chronovu_la8_samplerates,
- ARRAY_SIZE(chronovu_la8_samplerates),
+ cv_samplerates, ARRAY_SIZE(cv_samplerates),
sizeof(uint64_t));
g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar);
*data = g_variant_builder_end(&gvb);
(void)revents;
if (!(sdi = cb_data)) {
- sr_err("%s: cb_data was NULL.", __func__);
+ sr_err("cb_data was NULL.");
return FALSE;
}
if (!(devc = sdi->priv)) {
- sr_err("%s: sdi->priv was NULL.", __func__);
+ sr_err("sdi->priv was NULL.");
return FALSE;
}
if (!devc->ftdic) {
- sr_err("%s: devc->ftdic was NULL.", __func__);
+ sr_err("devc->ftdic was NULL.");
return FALSE;
}
/* Get one block of data. */
- if ((ret = la8_read_block(devc)) < 0) {
- sr_err("%s: la8_read_block error: %d.", __func__, ret);
+ if ((ret = cv_read_block(devc)) < 0) {
+ sr_err("Failed to read data block: %d.", ret);
dev_acquisition_stop(sdi, sdi);
return FALSE;
}
/* All data was received and demangled, send it to the session bus. */
for (i = 0; i < NUM_BLOCKS; i++)
- send_block_to_session_bus(devc, i);
+ cv_send_block_to_session_bus(devc, i);
dev_acquisition_stop(sdi, sdi);
return SR_ERR_DEV_CLOSED;
if (!(devc = sdi->priv)) {
- sr_err("%s: sdi->priv was NULL.", __func__);
+ sr_err("sdi->priv was NULL.");
return SR_ERR_BUG;
}
if (!devc->ftdic) {
- sr_err("%s: devc->ftdic was NULL.", __func__);
+ sr_err("devc->ftdic was NULL.");
return SR_ERR_BUG;
}
- devc->divcount = samplerate_to_divcount(devc->cur_samplerate);
+ devc->divcount = cv_samplerate_to_divcount(devc->cur_samplerate);
if (devc->divcount == 0xff) {
- sr_err("%s: Invalid divcount/samplerate.", __func__);
+ sr_err("Invalid divcount/samplerate.");
return SR_ERR;
}
- if (configure_channels(sdi) != SR_OK) {
+ if (cv_configure_channels(sdi) != SR_OK) {
sr_err("Failed to configure channels.");
return SR_ERR;
}
buf[3] = devc->trigger_mask;
/* Start acquisition. */
- bytes_written = la8_write(devc, buf, 4);
+ bytes_written = cv_write(devc, buf, 4);
if (bytes_written < 0) {
sr_err("Acquisition failed to start: %d.", bytes_written);
devc->block_counter = 0;
devc->trigger_found = 0;
- /* Hook up a dummy handler to receive data from the LA8. */
+ /* 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;
projects / libsigrok.git / blobdiff