/*
* 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;
/*
* 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 "libsigrok.h"
-#include "libsigrok-internal.h"
#include "protocol.h"
/* Channels are numbered 0-7. */
-SR_PRIV const char *chronovu_la8_channel_names[NUM_CHANNELS + 1] = {
+SR_PRIV const char *cv_channel_names[NUM_CHANNELS + 1] = {
"0", "1", "2", "3", "4", "5", "6", "7",
NULL,
};
-SR_PRIV void fill_supported_samplerates_if_needed(void)
+SR_PRIV void cv_fill_samplerates_if_needed(void)
{
int i;
- if (chronovu_la8_samplerates[0] != 0)
+ if (cv_samplerates[0] != 0)
return;
for (i = 0; i < 255; i++)
- chronovu_la8_samplerates[254 - i] = SR_MHZ(100) / (i + 1);
+ cv_samplerates[254 - i] = SR_MHZ(100) / (i + 1);
}
/**
- * Check if the given samplerate is supported by the LA8 hardware.
+ * Check if the given samplerate is supported by the hardware.
*
* @param samplerate The samplerate (in Hz) to check.
* @return 1 if the samplerate is supported/valid, 0 otherwise.
*/
-SR_PRIV int is_valid_samplerate(uint64_t samplerate)
+static int is_valid_samplerate(uint64_t samplerate)
{
int i;
- fill_supported_samplerates_if_needed();
+ cv_fill_samplerates_if_needed();
for (i = 0; i < 255; i++) {
- if (chronovu_la8_samplerates[i] == samplerate)
+ if (cv_samplerates[i] == samplerate)
return 1;
}
}
/**
- * Convert a samplerate (in Hz) to the 'divcount' value the LA8 wants.
+ * Convert a samplerate (in Hz) to the 'divcount' value the device wants.
*
* LA8 hardware: sample period = (divcount + 1) * 10ns.
* Min. value for divcount: 0x00 (10ns sample period, 100MHz samplerate).
* @param samplerate The samplerate in Hz.
* @return The divcount value as needed by the hardware, or 0xff upon errors.
*/
-SR_PRIV uint8_t samplerate_to_divcount(uint64_t samplerate)
+SR_PRIV uint8_t cv_samplerate_to_divcount(uint64_t samplerate)
{
if (samplerate == 0) {
- sr_err("%s: samplerate was 0.", __func__);
+ sr_err("Can't convert invalid samplerate of 0 Hz.");
return 0xff;
}
if (!is_valid_samplerate(samplerate)) {
- sr_err("%s: Can't get divcount, samplerate invalid.", __func__);
+ sr_err("Can't get divcount, samplerate invalid.");
return 0xff;
}
}
/**
- * Write data of a certain length to the LA8's FTDI device.
+ * Write data of a certain length to the FTDI device.
*
* @param devc The struct containing private per-device-instance data. Must not
- * be NULL. devc->ftdic must not be NULL either.
+ * be NULL. devc->ftdic must not be NULL either.
* @param buf The buffer containing the data to write. Must not be NULL.
- * @param size The number of bytes to write. Must be >= 0.
+ * @param size The number of bytes to write. Must be > 0.
+ *
* @return The number of bytes written, or a negative value upon errors.
*/
-SR_PRIV int la8_write(struct dev_context *devc, uint8_t *buf, int size)
+SR_PRIV int cv_write(struct dev_context *devc, uint8_t *buf, int size)
{
int bytes_written;
- /* Note: Caller checked that devc and devc->ftdic != NULL. */
+ /* Note: Caller ensures devc/devc->ftdic/buf != NULL and size > 0. */
- if (!buf) {
- sr_err("%s: buf was NULL.", __func__);
+ if (!buf)
return SR_ERR_ARG;
- }
- if (size < 0) {
- sr_err("%s: size was < 0.", __func__);
+ if (size < 0)
return SR_ERR_ARG;
- }
bytes_written = ftdi_write_data(devc->ftdic, buf, size);
if (bytes_written < 0) {
- sr_err("%s: ftdi_write_data: (%d) %s.", __func__,
+ sr_err("Failed to write data (%d): %s.",
bytes_written, ftdi_get_error_string(devc->ftdic));
- (void) la8_close_usb_reset_sequencer(devc); /* Ignore errors. */
+ (void) cv_close_usb_reset_sequencer(devc); /* Ignore errors. */
} else if (bytes_written != size) {
- sr_err("%s: bytes to write: %d, bytes written: %d.",
- __func__, size, bytes_written);
- (void) la8_close_usb_reset_sequencer(devc); /* Ignore errors. */
+ sr_err("Failed to write data, only %d/%d bytes written.",
+ size, bytes_written);
+ (void) cv_close_usb_reset_sequencer(devc); /* Ignore errors. */
}
return bytes_written;
}
/**
- * Read a certain amount of bytes from the LA8's FTDI device.
+ * Read a certain amount of bytes from the FTDI device.
*
* @param devc The struct containing private per-device-instance data. Must not
- * be NULL. devc->ftdic must not be NULL either.
+ * be NULL. devc->ftdic must not be NULL either.
* @param buf The buffer where the received data will be stored. Must not
* be NULL.
* @param size The number of bytes to read. Must be >= 1.
+ *
* @return The number of bytes read, or a negative value upon errors.
*/
-SR_PRIV int la8_read(struct dev_context *devc, uint8_t *buf, int size)
+static int cv_read(struct dev_context *devc, uint8_t *buf, int size)
{
int bytes_read;
- /* Note: Caller checked that devc and devc->ftdic != NULL. */
-
- if (!buf) {
- sr_err("%s: buf was NULL.", __func__);
- return SR_ERR_ARG;
- }
-
- if (size <= 0) {
- sr_err("%s: size was <= 0.", __func__);
- return SR_ERR_ARG;
- }
+ /* Note: Caller ensures devc/devc->ftdic/buf != NULL and size > 0. */
bytes_read = ftdi_read_data(devc->ftdic, buf, size);
if (bytes_read < 0) {
- sr_err("%s: ftdi_read_data: (%d) %s.", __func__,
+ sr_err("Failed to read data (%d): %s.",
bytes_read, ftdi_get_error_string(devc->ftdic));
} else if (bytes_read != size) {
- // sr_err("%s: Bytes to read: %d, bytes read: %d.",
- // __func__, size, bytes_read);
+ // sr_err("Failed to read data, only %d/%d bytes read.",
+ // bytes_read, size);
}
return bytes_read;
}
-SR_PRIV int la8_close(struct dev_context *devc)
+SR_PRIV int cv_close(struct dev_context *devc)
{
int ret;
}
/**
- * Close the ChronoVu LA8 USB port and reset the LA8 sequencer logic.
+ * Close the USB port and reset the sequencer logic.
*
* @param devc The struct containing private per-device-instance data.
* @return SR_OK upon success, SR_ERR_ARG upon invalid arguments.
*/
-SR_PRIV int la8_close_usb_reset_sequencer(struct dev_context *devc)
+SR_PRIV int cv_close_usb_reset_sequencer(struct dev_context *devc)
{
- /* Magic sequence of bytes for resetting the LA8 sequencer logic. */
+ /* Magic sequence of bytes for resetting the sequencer logic. */
uint8_t buf[8] = {0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01};
int ret;
- if (!devc) {
- sr_err("%s: devc was NULL.", __func__);
+ if (!devc)
return SR_ERR_ARG;
- }
if (!devc->ftdic) {
- sr_err("%s: devc->ftdic was NULL.", __func__);
+ sr_err("devc->ftdic was NULL.");
return SR_ERR_ARG;
}
if (devc->ftdic->usb_dev) {
- /* Reset the LA8 sequencer logic, then wait 100ms. */
+ /* Reset the sequencer logic, then wait 100ms. */
sr_dbg("Resetting sequencer logic.");
- (void) la8_write(devc, buf, 8); /* Ignore errors. */
+ (void) cv_write(devc, buf, 8); /* Ignore errors. */
g_usleep(100 * 1000);
/* Purge FTDI buffers, then reset and close the FTDI device. */
}
/**
- * Reset the ChronoVu LA8.
+ * Reset the ChronoVu device.
*
- * The LA8 must be reset after a failed read/write operation or upon timeouts.
+ * A reset is required after a failed read/write operation or upon timeouts.
*
* @param devc The struct containing private per-device-instance data.
* @return SR_OK upon success, SR_ERR upon failure.
*/
-SR_PRIV int la8_reset(struct dev_context *devc)
+static int cv_reset(struct dev_context *devc)
{
uint8_t buf[BS];
time_t done, now;
*/
done = 20 + time(NULL);
do {
- /* TODO: Ignore errors? Check for < 0 at least! */
- bytes_read = la8_read(devc, (uint8_t *)&buf, BS);
+ /* Try to read bytes until none are left (or errors occur). */
+ bytes_read = cv_read(devc, (uint8_t *)&buf, BS);
now = time(NULL);
} while ((done > now) && (bytes_read > 0));
- /* Reset the LA8 sequencer logic and close the USB port. */
- (void) la8_close_usb_reset_sequencer(devc); /* Ignore errors. */
+ /* Reset the sequencer logic and close the USB port. */
+ (void) cv_close_usb_reset_sequencer(devc); /* Ignore errors. */
sr_dbg("Device reset finished.");
return SR_OK;
}
-SR_PRIV int configure_channels(const struct sr_dev_inst *sdi)
+SR_PRIV int cv_configure_channels(const struct sr_dev_inst *sdi)
{
struct dev_context *devc;
const struct sr_channel *ch;
return SR_OK;
}
-SR_PRIV int set_samplerate(const struct sr_dev_inst *sdi, uint64_t samplerate)
+SR_PRIV int cv_set_samplerate(const struct sr_dev_inst *sdi, uint64_t samplerate)
{
struct dev_context *devc;
sr_spew("Trying to set samplerate to %" PRIu64 "Hz.", samplerate);
- fill_supported_samplerates_if_needed();
+ cv_fill_samplerates_if_needed();
/* Check if this is a samplerate supported by the hardware. */
- if (!is_valid_samplerate(samplerate))
+ if (!is_valid_samplerate(samplerate)) {
+ sr_dbg("Failed to set invalid samplerate (%" PRIu64 "Hz).",
+ samplerate);
return SR_ERR;
+ }
/* Set the new samplerate. */
devc->cur_samplerate = samplerate;
}
/**
- * Get a block of data from the LA8.
+ * Get a block of data from the device.
*
* @param devc The struct containing private per-device-instance data. Must not
- * be NULL. devc->ftdic must not be NULL either.
+ * be NULL. devc->ftdic must not be NULL either.
+ *
* @return SR_OK upon success, or SR_ERR upon errors.
*/
-SR_PRIV int la8_read_block(struct dev_context *devc)
+SR_PRIV int cv_read_block(struct dev_context *devc)
{
int i, byte_offset, m, mi, p, index, bytes_read;
time_t now;
sr_spew("Reading block %d.", devc->block_counter);
- bytes_read = la8_read(devc, devc->mangled_buf, BS);
+ bytes_read = cv_read(devc, devc->mangled_buf, BS);
/* If first block read got 0 bytes, retry until success or timeout. */
if ((bytes_read == 0) && (devc->block_counter == 0)) {
do {
sr_spew("Reading block 0 (again).");
- bytes_read = la8_read(devc, devc->mangled_buf, BS);
+ bytes_read = cv_read(devc, devc->mangled_buf, BS);
/* TODO: How to handle read errors here? */
now = time(NULL);
} while ((devc->done > now) && (bytes_read == 0));
/* Check if block read was successful or a timeout occured. */
if (bytes_read != BS) {
sr_err("Trigger timed out. Bytes read: %d.", bytes_read);
- (void) la8_reset(devc); /* Ignore errors. */
+ (void) cv_reset(devc); /* Ignore errors. */
return SR_ERR;
}
return SR_OK;
}
-SR_PRIV void send_block_to_session_bus(struct dev_context *devc, int block)
+SR_PRIV void cv_send_block_to_session_bus(struct dev_context *devc, int block)
{
int i;
uint8_t sample, expected_sample;
/*
* 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
#define NUM_CHANNELS 8
#define TRIGGER_TYPE "01"
#define SDRAM_SIZE (8 * 1024 * 1024)
-#define MIN_NUM_SAMPLES 1
#define MAX_NUM_SAMPLES SDRAM_SIZE
#define BS 4096 /* Block size */
/** Tells us whether an SR_DF_TRIGGER packet was already sent. */
int trigger_found;
- /** TODO */
+ /** Used for keeping track how much time has passed. */
time_t done;
/** Counter/index for the data block to be read. */
int block_counter;
- /** The divcount value (determines the sample period) for the LA8. */
+ /** The divcount value (determines the sample period). */
uint8_t divcount;
- /** This ChronoVu LA8's USB PID (multiple versions exist). */
+ /** This ChronoVu device's USB PID. */
uint16_t usb_pid;
};
/* protocol.c */
-extern const int32_t chronovu_la8_hwcaps[];
-extern uint64_t chronovu_la8_samplerates[];
-extern SR_PRIV const char *chronovu_la8_channel_names[];
-SR_PRIV void fill_supported_samplerates_if_needed(void);
-SR_PRIV int is_valid_samplerate(uint64_t samplerate);
-SR_PRIV uint8_t samplerate_to_divcount(uint64_t samplerate);
-SR_PRIV int la8_write(struct dev_context *devc, uint8_t *buf, int size);
-SR_PRIV int la8_read(struct dev_context *devc, uint8_t *buf, int size);
-SR_PRIV int la8_close(struct dev_context *devc);
-SR_PRIV int la8_close_usb_reset_sequencer(struct dev_context *devc);
-SR_PRIV int la8_reset(struct dev_context *devc);
-SR_PRIV int configure_channels(const struct sr_dev_inst *sdi);
-SR_PRIV int set_samplerate(const struct sr_dev_inst *sdi, uint64_t samplerate);
-SR_PRIV int la8_read_block(struct dev_context *devc);
-SR_PRIV void send_block_to_session_bus(struct dev_context *devc, int block);
+extern const int32_t cv_hwcaps[];
+extern uint64_t cv_samplerates[];
+extern SR_PRIV const char *cv_channel_names[];
+SR_PRIV void cv_fill_samplerates_if_needed(void);
+SR_PRIV uint8_t cv_samplerate_to_divcount(uint64_t samplerate);
+SR_PRIV int cv_write(struct dev_context *devc, uint8_t *buf, int size);
+SR_PRIV int cv_close(struct dev_context *devc);
+SR_PRIV int cv_close_usb_reset_sequencer(struct dev_context *devc);
+SR_PRIV int cv_configure_channels(const struct sr_dev_inst *sdi);
+SR_PRIV int cv_set_samplerate(const struct sr_dev_inst *sdi, uint64_t samplerate);
+SR_PRIV int cv_read_block(struct dev_context *devc);
+SR_PRIV void cv_send_block_to_session_bus(struct dev_context *devc, int block);
#endif
projects / libsigrok.git / commitdiff