#include <string.h>
#include <inttypes.h>
#include <libusb.h>
-#include "config.h"
#include "libsigrok.h"
#include "libsigrok-internal.h"
#include "fx2lafw.h"
supported_samplerates,
};
-static libusb_context *usb_context = NULL;
-
SR_PRIV struct sr_dev_driver fx2lafw_driver_info;
static struct sr_dev_driver *fdi = &fx2lafw_driver_info;
static int hw_dev_close(struct sr_dev_inst *sdi);
static int hw_dev_config_set(const struct sr_dev_inst *sdi, int hwcap,
const void *value);
-static int hw_dev_acquisition_stop(const struct sr_dev_inst *sdi,
- void *cb_data);
+static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data);
/**
* Check the USB configuration to determine if this is an fx2lafw device.
{
libusb_device **devlist;
struct libusb_device_descriptor des;
- struct context *ctx;
+ struct dev_context *devc;
+ struct drv_context *drvc = fdi->priv;
struct version_info vi;
int ret, skip, i;
uint8_t revid;
- ctx = sdi->priv;
+ devc = sdi->priv;
if (sdi->status == SR_ST_ACTIVE)
/* already in use */
return SR_ERR;
skip = 0;
- const int device_count = libusb_get_device_list(usb_context, &devlist);
+ const int device_count = libusb_get_device_list(
+ drvc->sr_ctx->libusb_ctx, &devlist);
if (device_count < 0) {
sr_err("fx2lafw: Failed to retrieve device list (%d)",
device_count);
for (i = 0; i < device_count; i++) {
if ((ret = libusb_get_device_descriptor(devlist[i], &des))) {
- sr_err("fx2lafw: Failed to get device descriptor: %d.",
- ret);
+ sr_err("fx2lafw: Failed to get device descriptor: %s.",
+ libusb_error_name(ret));
continue;
}
- if (des.idVendor != ctx->profile->vid
- || des.idProduct != ctx->profile->pid)
+ if (des.idVendor != devc->profile->vid
+ || des.idProduct != devc->profile->pid)
continue;
if (sdi->status == SR_ST_INITIALIZING) {
* This device is fully enumerated, so we need to find
* this device by vendor, product, bus and address.
*/
- if (libusb_get_bus_number(devlist[i]) != ctx->usb->bus
- || libusb_get_device_address(devlist[i]) != ctx->usb->address)
+ if (libusb_get_bus_number(devlist[i]) != devc->usb->bus
+ || libusb_get_device_address(devlist[i]) != devc->usb->address)
/* this is not the one */
continue;
}
- if (!(ret = libusb_open(devlist[i], &ctx->usb->devhdl))) {
- if (ctx->usb->address == 0xff)
+ if (!(ret = libusb_open(devlist[i], &devc->usb->devhdl))) {
+ if (devc->usb->address == 0xff)
/*
* first time we touch this device after firmware upload,
* so we don't know the address yet.
*/
- ctx->usb->address = libusb_get_device_address(devlist[i]);
+ devc->usb->address = libusb_get_device_address(devlist[i]);
} else {
- sr_err("fx2lafw: Failed to open device: %d.", ret);
+ sr_err("fx2lafw: Failed to open device: %s.",
+ libusb_error_name(ret));
break;
}
- ret = command_get_fw_version(ctx->usb->devhdl, &vi);
+ ret = command_get_fw_version(devc->usb->devhdl, &vi);
if (ret != SR_OK) {
sr_err("fx2lafw: Failed to retrieve "
"firmware version information.");
break;
}
- ret = command_get_revid_version(ctx->usb->devhdl, &revid);
+ ret = command_get_revid_version(devc->usb->devhdl, &revid);
if (ret != SR_OK) {
sr_err("fx2lafw: Failed to retrieve REVID.");
break;
sdi->status = SR_ST_ACTIVE;
sr_info("fx2lafw: Opened device %d on %d.%d "
"interface %d, firmware %d.%d, REVID %d.",
- sdi->index, ctx->usb->bus, ctx->usb->address,
+ sdi->index, devc->usb->bus, devc->usb->address,
USB_INTERFACE, vi.major, vi.minor, revid);
break;
return SR_OK;
}
-static int configure_probes(struct context *ctx, GSList *probes)
+static int configure_probes(const struct sr_dev_inst *sdi)
{
+ struct dev_context *devc;
struct sr_probe *probe;
GSList *l;
int probe_bit, stage, i;
char *tc;
+ devc = sdi->priv;
for (i = 0; i < NUM_TRIGGER_STAGES; i++) {
- ctx->trigger_mask[i] = 0;
- ctx->trigger_value[i] = 0;
+ devc->trigger_mask[i] = 0;
+ devc->trigger_value[i] = 0;
}
stage = -1;
- for (l = probes; l; l = l->next) {
+ for (l = sdi->probes; l; l = l->next) {
probe = (struct sr_probe *)l->data;
if (probe->enabled == FALSE)
continue;
- if (probe->index > 8)
- ctx->sample_wide = TRUE;
+ if (probe->index > 7)
+ devc->sample_wide = TRUE;
- probe_bit = 1 << (probe->index - 1);
+ probe_bit = 1 << (probe->index);
if (!(probe->trigger))
continue;
stage = 0;
for (tc = probe->trigger; *tc; tc++) {
- ctx->trigger_mask[stage] |= probe_bit;
+ devc->trigger_mask[stage] |= probe_bit;
if (*tc == '1')
- ctx->trigger_value[stage] |= probe_bit;
+ devc->trigger_value[stage] |= probe_bit;
stage++;
if (stage > NUM_TRIGGER_STAGES)
return SR_ERR;
* We didn't configure any triggers, make sure acquisition
* doesn't wait for any.
*/
- ctx->trigger_stage = TRIGGER_FIRED;
+ devc->trigger_stage = TRIGGER_FIRED;
else
- ctx->trigger_stage = 0;
+ devc->trigger_stage = 0;
return SR_OK;
}
-static struct context *fx2lafw_dev_new(void)
+static struct dev_context *fx2lafw_dev_new(void)
{
- struct context *ctx;
+ struct dev_context *devc;
- if (!(ctx = g_try_malloc0(sizeof(struct context)))) {
- sr_err("fx2lafw: %s: ctx malloc failed.", __func__);
+ if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
+ sr_err("fx2lafw: %s: devc malloc failed.", __func__);
return NULL;
}
- ctx->trigger_stage = TRIGGER_FIRED;
+ devc->trigger_stage = TRIGGER_FIRED;
- return ctx;
+ return devc;
}
static int clear_instances(void)
{
GSList *l;
struct sr_dev_inst *sdi;
- struct context *ctx;
+ struct drv_context *drvc;
+ struct dev_context *devc;
int ret;
+ drvc = fdi->priv;
ret = SR_OK;
- for (l = fdi->instances; l; l = l->next) {
+ for (l = drvc->instances; l; l = l->next) {
if (!(sdi = l->data)) {
/* Log error, but continue cleaning up the rest. */
sr_err("fx2lafw: %s: sdi was NULL, continuing.",
ret = SR_ERR_BUG;
continue;
}
- if (!(ctx = sdi->priv)) {
+ if (!(devc = sdi->priv)) {
/* Log error, but continue cleaning up the rest. */
sr_err("fx2lafw: %s: sdi->priv was NULL, continuing",
__func__);
continue;
}
hw_dev_close(sdi);
+ sr_usb_dev_inst_free(devc->usb);
sdi = l->data;
sr_dev_inst_free(sdi);
}
- g_slist_free(fdi->instances);
- fdi->instances = NULL;
+ g_slist_free(drvc->instances);
+ drvc->instances = NULL;
return ret;
}
* API callbacks
*/
-static int hw_init(void)
+static int hw_init(struct sr_context *sr_ctx)
{
+ struct drv_context *drvc;
- if (libusb_init(&usb_context) != 0) {
- sr_warn("fx2lafw: Failed to initialize libusb.");
- return SR_ERR;
+ if (!(drvc = g_try_malloc0(sizeof(struct drv_context)))) {
+ sr_err("fx2lafw: driver context malloc failed.");
+ return SR_ERR_MALLOC;
}
+ drvc->sr_ctx = sr_ctx;
+ fdi->priv = drvc;
+
return SR_OK;
}
struct libusb_device_descriptor des;
struct sr_dev_inst *sdi;
const struct fx2lafw_profile *prof;
- struct context *ctx;
+ struct drv_context *drvc;
+ struct dev_context *devc;
struct sr_probe *probe;
libusb_device **devlist;
int devcnt, num_logic_probes, ret, i, j;
- /* Avoid compiler warnings. */
(void)options;
+ drvc = fdi->priv;
+
/* This scan always invalidates any previous scans. */
clear_instances();
/* Find all fx2lafw compatible devices and upload firmware to them. */
devices = NULL;
- libusb_get_device_list(usb_context, &devlist);
+ libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);
for (i = 0; devlist[i]; i++) {
if ((ret = libusb_get_device_descriptor(
devlist[i], &des)) != 0) {
- sr_warn("fx2lafw: Failed to get device descriptor: %d.", ret);
+ sr_warn("fx2lafw: Failed to get device descriptor: %s.",
+ libusb_error_name(ret));
continue;
}
if (!prof)
continue;
- devcnt = g_slist_length(fdi->instances);
+ devcnt = g_slist_length(drvc->instances);
sdi = sr_dev_inst_new(devcnt, SR_ST_INITIALIZING,
prof->vendor, prof->model, prof->model_version);
if (!sdi)
sdi->probes = g_slist_append(sdi->probes, probe);
}
- ctx = fx2lafw_dev_new();
- ctx->profile = prof;
- sdi->priv = ctx;
- fdi->instances = g_slist_append(fdi->instances, sdi);
+ devc = fx2lafw_dev_new();
+ devc->profile = prof;
+ sdi->priv = devc;
+ drvc->instances = g_slist_append(drvc->instances, sdi);
devices = g_slist_append(devices, sdi);
if (check_conf_profile(devlist[i])) {
/* Already has the firmware, so fix the new address. */
sr_dbg("fx2lafw: Found an fx2lafw device.");
sdi->status = SR_ST_INACTIVE;
- ctx->usb = sr_usb_dev_inst_new
+ devc->usb = sr_usb_dev_inst_new
(libusb_get_bus_number(devlist[i]),
libusb_get_device_address(devlist[i]), NULL);
} else {
if (ezusb_upload_firmware(devlist[i], USB_CONFIGURATION,
prof->firmware) == SR_OK)
/* Remember when the firmware on this device was updated */
- ctx->fw_updated = g_get_monotonic_time();
+ devc->fw_updated = g_get_monotonic_time();
else
sr_err("fx2lafw: Firmware upload failed for "
"device %d.", devcnt);
- ctx->usb = sr_usb_dev_inst_new
+ devc->usb = sr_usb_dev_inst_new
(libusb_get_bus_number(devlist[i]), 0xff, NULL);
}
}
return devices;
}
+static GSList *hw_dev_list(void)
+{
+ struct drv_context *drvc;
+
+ drvc = fdi->priv;
+
+ return drvc->instances;
+}
+
static int hw_dev_open(struct sr_dev_inst *sdi)
{
- struct context *ctx;
+ struct dev_context *devc;
int ret;
int64_t timediff_us, timediff_ms;
- ctx = sdi->priv;
+ devc = sdi->priv;
/*
* If the firmware was recently uploaded, wait up to MAX_RENUM_DELAY_MS
* milliseconds for the FX2 to renumerate.
*/
ret = SR_ERR;
- if (ctx->fw_updated > 0) {
+ if (devc->fw_updated > 0) {
sr_info("fx2lafw: Waiting for device to reset.");
/* takes at least 300ms for the FX2 to be gone from the USB bus */
g_usleep(300 * 1000);
break;
g_usleep(100 * 1000);
- timediff_us = g_get_monotonic_time() - ctx->fw_updated;
+ timediff_us = g_get_monotonic_time() - devc->fw_updated;
timediff_ms = timediff_us / 1000;
sr_spew("fx2lafw: waited %" PRIi64 " ms", timediff_ms);
}
sr_err("fx2lafw: Unable to open device.");
return SR_ERR;
}
- ctx = sdi->priv;
+ devc = sdi->priv;
- ret = libusb_claim_interface(ctx->usb->devhdl, USB_INTERFACE);
+ ret = libusb_claim_interface(devc->usb->devhdl, USB_INTERFACE);
if (ret != 0) {
switch(ret) {
case LIBUSB_ERROR_BUSY:
break;
default:
- sr_err("fx2lafw: Unable to claim interface: %d.", ret);
+ sr_err("fx2lafw: Unable to claim interface: %s.",
+ libusb_error_name(ret));
break;
}
return SR_ERR;
}
- if (ctx->cur_samplerate == 0) {
+ if (devc->cur_samplerate == 0) {
/* Samplerate hasn't been set; default to the slowest one. */
if (hw_dev_config_set(sdi, SR_HWCAP_SAMPLERATE,
&supported_samplerates[0]) == SR_ERR)
static int hw_dev_close(struct sr_dev_inst *sdi)
{
- struct context *ctx;
+ struct dev_context *devc;
- ctx = sdi->priv;
- if (ctx->usb->devhdl == NULL)
+ devc = sdi->priv;
+ if (devc->usb->devhdl == NULL)
return SR_ERR;
sr_info("fx2lafw: Closing device %d on %d.%d interface %d.",
- sdi->index, ctx->usb->bus, ctx->usb->address, USB_INTERFACE);
- libusb_release_interface(ctx->usb->devhdl, USB_INTERFACE);
- libusb_close(ctx->usb->devhdl);
- ctx->usb->devhdl = NULL;
+ sdi->index, devc->usb->bus, devc->usb->address, USB_INTERFACE);
+ libusb_release_interface(devc->usb->devhdl, USB_INTERFACE);
+ libusb_close(devc->usb->devhdl);
+ devc->usb->devhdl = NULL;
sdi->status = SR_ST_INACTIVE;
return SR_OK;
static int hw_cleanup(void)
{
+ struct drv_context *drvc;
int ret;
+ if (!(drvc = fdi->priv))
+ return SR_OK;
+
ret = clear_instances();
- if (usb_context)
- libusb_exit(usb_context);
- usb_context = NULL;
+ g_free(drvc);
+ fdi->priv = NULL;
return ret;
}
static int hw_info_get(int info_id, const void **data,
const struct sr_dev_inst *sdi)
{
- struct context *ctx;
+ struct dev_context *devc;
switch (info_id) {
- case SR_DI_INST:
- *data = sdi;
- break;
case SR_DI_HWCAPS:
*data = hwcaps;
break;
case SR_DI_NUM_PROBES:
if (sdi) {
- ctx = sdi->priv;
+ devc = sdi->priv;
*data = GINT_TO_POINTER(
- (ctx->profile->dev_caps & DEV_CAPS_16BIT) ?
+ (devc->profile->dev_caps & DEV_CAPS_16BIT) ?
16 : 8);
} else
return SR_ERR;
break;
case SR_DI_CUR_SAMPLERATE:
if (sdi) {
- ctx = sdi->priv;
- *data = &ctx->cur_samplerate;
+ devc = sdi->priv;
+ *data = &devc->cur_samplerate;
} else
return SR_ERR;
break;
return SR_OK;
}
-static int hw_dev_status_get(int dev_index)
-{
- const struct sr_dev_inst *const sdi =
- sr_dev_inst_get(fdi->instances, dev_index);
-
- if (!sdi)
- return SR_ST_NOT_FOUND;
-
- return sdi->status;
-}
-
static int hw_dev_config_set(const struct sr_dev_inst *sdi, int hwcap,
const void *value)
{
- struct context *ctx;
+ struct dev_context *devc;
int ret;
- ctx = sdi->priv;
+ devc = sdi->priv;
if (hwcap == SR_HWCAP_SAMPLERATE) {
- ctx->cur_samplerate = *(const uint64_t *)value;
+ devc->cur_samplerate = *(const uint64_t *)value;
ret = SR_OK;
- } else if (hwcap == SR_HWCAP_PROBECONFIG) {
- ret = configure_probes(ctx, (GSList *) value);
} else if (hwcap == SR_HWCAP_LIMIT_SAMPLES) {
- ctx->limit_samples = *(const uint64_t *)value;
+ devc->limit_samples = *(const uint64_t *)value;
ret = SR_OK;
} else {
ret = SR_ERR;
static int receive_data(int fd, int revents, void *cb_data)
{
struct timeval tv;
+ struct drv_context *drvc = fdi->priv;
- /* Avoid compiler warnings. */
(void)fd;
(void)revents;
(void)cb_data;
tv.tv_sec = tv.tv_usec = 0;
- libusb_handle_events_timeout(usb_context, &tv);
+ libusb_handle_events_timeout(drvc->sr_ctx->libusb_ctx, &tv);
return TRUE;
}
-static void abort_acquisition(struct context *ctx)
+static void abort_acquisition(struct dev_context *devc)
{
int i;
- ctx->num_samples = -1;
+ devc->num_samples = -1;
- for (i = ctx->num_transfers - 1; i >= 0; i--) {
- if (ctx->transfers[i])
- libusb_cancel_transfer(ctx->transfers[i]);
+ for (i = devc->num_transfers - 1; i >= 0; i--) {
+ if (devc->transfers[i])
+ libusb_cancel_transfer(devc->transfers[i]);
}
}
-static void finish_acquisition(struct context *ctx)
+static void finish_acquisition(struct dev_context *devc)
{
struct sr_datafeed_packet packet;
+ struct drv_context *drvc = fdi->priv;
int i;
+
/* Terminate session */
packet.type = SR_DF_END;
- sr_session_send(ctx->session_dev_id, &packet);
+ sr_session_send(devc->session_dev_id, &packet);
/* Remove fds from polling */
const struct libusb_pollfd **const lupfd =
- libusb_get_pollfds(usb_context);
+ libusb_get_pollfds(drvc->sr_ctx->libusb_ctx);
for (i = 0; lupfd[i]; i++)
sr_source_remove(lupfd[i]->fd);
free(lupfd); /* NOT g_free()! */
- ctx->num_transfers = 0;
- g_free(ctx->transfers);
+ devc->num_transfers = 0;
+ g_free(devc->transfers);
}
static void free_transfer(struct libusb_transfer *transfer)
{
- struct context *ctx = transfer->user_data;
+ struct dev_context *devc = transfer->user_data;
unsigned int i;
g_free(transfer->buffer);
transfer->buffer = NULL;
libusb_free_transfer(transfer);
- for (i = 0; i < ctx->num_transfers; i++) {
- if (ctx->transfers[i] == transfer) {
- ctx->transfers[i] = NULL;
+ for (i = 0; i < devc->num_transfers; i++) {
+ if (devc->transfers[i] == transfer) {
+ devc->transfers[i] = NULL;
break;
}
}
- ctx->submitted_transfers--;
- if (ctx->submitted_transfers == 0)
- finish_acquisition(ctx);
+ devc->submitted_transfers--;
+ if (devc->submitted_transfers == 0)
+ finish_acquisition(devc);
}
static void resubmit_transfer(struct libusb_transfer *transfer)
{
- if (libusb_submit_transfer(transfer) != 0) {
- free_transfer(transfer);
- /* TODO: Stop session? */
- /* TODO: Better error message. */
- sr_err("fx2lafw: %s: libusb_submit_transfer error.", __func__);
- }
+ int ret = libusb_submit_transfer(transfer);
+
+ if (LIBUSB_SUCCESS == ret)
+ return;
+
+ free_transfer(transfer);
+ /* TODO: Stop session? */
+
+ sr_err("fx2lafw: %s: %s", __func__, libusb_error_name(ret));
}
static void receive_transfer(struct libusb_transfer *transfer)
gboolean packet_has_error = FALSE;
struct sr_datafeed_packet packet;
struct sr_datafeed_logic logic;
- struct context *ctx = transfer->user_data;
+ struct dev_context *devc = transfer->user_data;
int trigger_offset, i;
/*
* If acquisition has already ended, just free any queued up
* transfer that come in.
*/
- if (ctx->num_samples == -1) {
+ if (devc->num_samples == -1) {
free_transfer(transfer);
return;
}
/* Save incoming transfer before reusing the transfer struct. */
uint8_t *const cur_buf = transfer->buffer;
- const int sample_width = ctx->sample_wide ? 2 : 1;
+ const int sample_width = devc->sample_wide ? 2 : 1;
const int cur_sample_count = transfer->actual_length / sample_width;
switch (transfer->status) {
case LIBUSB_TRANSFER_NO_DEVICE:
- abort_acquisition(ctx);
+ abort_acquisition(devc);
free_transfer(transfer);
return;
case LIBUSB_TRANSFER_COMPLETED:
}
if (transfer->actual_length == 0 || packet_has_error) {
- ctx->empty_transfer_count++;
- if (ctx->empty_transfer_count > MAX_EMPTY_TRANSFERS) {
+ devc->empty_transfer_count++;
+ if (devc->empty_transfer_count > MAX_EMPTY_TRANSFERS) {
/*
* The FX2 gave up. End the acquisition, the frontend
* will work out that the samplecount is short.
*/
- abort_acquisition(ctx);
+ abort_acquisition(devc);
free_transfer(transfer);
} else {
resubmit_transfer(transfer);
}
return;
} else {
- ctx->empty_transfer_count = 0;
+ devc->empty_transfer_count = 0;
}
trigger_offset = 0;
- if (ctx->trigger_stage >= 0) {
+ if (devc->trigger_stage >= 0) {
for (i = 0; i < cur_sample_count; i++) {
- const uint16_t cur_sample = ctx->sample_wide ?
+ const uint16_t cur_sample = devc->sample_wide ?
*((const uint16_t*)cur_buf + i) :
*((const uint8_t*)cur_buf + i);
- if ((cur_sample & ctx->trigger_mask[ctx->trigger_stage]) ==
- ctx->trigger_value[ctx->trigger_stage]) {
+ if ((cur_sample & devc->trigger_mask[devc->trigger_stage]) ==
+ devc->trigger_value[devc->trigger_stage]) {
/* Match on this trigger stage. */
- ctx->trigger_buffer[ctx->trigger_stage] = cur_sample;
- ctx->trigger_stage++;
+ devc->trigger_buffer[devc->trigger_stage] = cur_sample;
+ devc->trigger_stage++;
- if (ctx->trigger_stage == NUM_TRIGGER_STAGES ||
- ctx->trigger_mask[ctx->trigger_stage] == 0) {
+ if (devc->trigger_stage == NUM_TRIGGER_STAGES ||
+ devc->trigger_mask[devc->trigger_stage] == 0) {
/* Match on all trigger stages, we're done. */
trigger_offset = i + 1;
*/
packet.type = SR_DF_TRIGGER;
packet.payload = NULL;
- sr_session_send(ctx->session_dev_id, &packet);
+ sr_session_send(devc->session_dev_id, &packet);
/*
* Send the samples that triggered it, since we're
*/
packet.type = SR_DF_LOGIC;
packet.payload = &logic;
- logic.unitsize = sizeof(*ctx->trigger_buffer);
- logic.length = ctx->trigger_stage * logic.unitsize;
- logic.data = ctx->trigger_buffer;
- sr_session_send(ctx->session_dev_id, &packet);
+ 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);
- ctx->trigger_stage = TRIGGER_FIRED;
+ devc->trigger_stage = TRIGGER_FIRED;
break;
}
- } else if (ctx->trigger_stage > 0) {
+ } else if (devc->trigger_stage > 0) {
/*
* We had a match before, but not in the next sample. However, we may
* have a match on this stage in the next bit -- trigger on 0001 will
* the next sample from the one that matched originally, which the
* counter increment at the end of the loop takes care of.
*/
- i -= ctx->trigger_stage;
+ i -= devc->trigger_stage;
if (i < -1)
i = -1; /* Oops, went back past this buffer. */
/* Reset trigger stage. */
- ctx->trigger_stage = 0;
+ devc->trigger_stage = 0;
}
}
}
- if (ctx->trigger_stage == TRIGGER_FIRED) {
+ if (devc->trigger_stage == TRIGGER_FIRED) {
/* Send the incoming transfer to the session bus. */
const int trigger_offset_bytes = trigger_offset * sample_width;
packet.type = SR_DF_LOGIC;
logic.length = transfer->actual_length - trigger_offset_bytes;
logic.unitsize = sample_width;
logic.data = cur_buf + trigger_offset_bytes;
- sr_session_send(ctx->session_dev_id, &packet);
+ sr_session_send(devc->session_dev_id, &packet);
- ctx->num_samples += cur_sample_count;
- if (ctx->limit_samples &&
- (unsigned int)ctx->num_samples > ctx->limit_samples) {
- abort_acquisition(ctx);
+ devc->num_samples += cur_sample_count;
+ if (devc->limit_samples &&
+ (unsigned int)devc->num_samples > devc->limit_samples) {
+ abort_acquisition(devc);
free_transfer(transfer);
return;
}
return samplerate / 1000;
}
-static size_t get_buffer_size(struct context *ctx)
+static size_t get_buffer_size(struct dev_context *devc)
{
size_t s;
/* The buffer should be large enough to hold 10ms of data and a multiple
* of 512. */
- s = 10 * to_bytes_per_ms(ctx->cur_samplerate);
+ s = 10 * to_bytes_per_ms(devc->cur_samplerate);
return (s + 511) & ~511;
}
-static unsigned int get_number_of_transfers(struct context *ctx)
+static unsigned int get_number_of_transfers(struct dev_context *devc)
{
unsigned int n;
/* Total buffer size should be able to hold about 500ms of data */
- n = 500 * to_bytes_per_ms(ctx->cur_samplerate) / get_buffer_size(ctx);
+ n = 500 * to_bytes_per_ms(devc->cur_samplerate) / get_buffer_size(devc);
if (n > NUM_SIMUL_TRANSFERS)
return NUM_SIMUL_TRANSFERS;
return n;
}
-static unsigned int get_timeout(struct context *ctx)
+static unsigned int get_timeout(struct dev_context *devc)
{
size_t total_size;
unsigned int timeout;
- total_size = get_buffer_size(ctx) * get_number_of_transfers(ctx);
- timeout = total_size / to_bytes_per_ms(ctx->cur_samplerate);
+ total_size = get_buffer_size(devc) * get_number_of_transfers(devc);
+ timeout = total_size / to_bytes_per_ms(devc->cur_samplerate);
return timeout + timeout / 4; /* Leave a headroom of 25% percent */
}
struct sr_datafeed_packet packet;
struct sr_datafeed_header header;
struct sr_datafeed_meta_logic meta;
- struct context *ctx;
+ struct dev_context *devc;
+ struct drv_context *drvc = fdi->priv;
struct libusb_transfer *transfer;
const struct libusb_pollfd **lupfd;
unsigned int i;
int ret;
unsigned char *buf;
- ctx = sdi->priv;
- if (ctx->submitted_transfers != 0)
+ devc = sdi->priv;
+ if (devc->submitted_transfers != 0)
return SR_ERR;
- ctx->session_dev_id = cb_data;
- ctx->num_samples = 0;
- ctx->empty_transfer_count = 0;
+ if (configure_probes(sdi) != SR_OK) {
+ sr_err("fx2lafw: failed to configured probes");
+ return SR_ERR;
+ }
- const unsigned int timeout = get_timeout(ctx);
- const unsigned int num_transfers = get_number_of_transfers(ctx);
- const size_t size = get_buffer_size(ctx);
+ devc->session_dev_id = cb_data;
+ devc->num_samples = 0;
+ devc->empty_transfer_count = 0;
- ctx->transfers = g_try_malloc0(sizeof(*ctx->transfers) * num_transfers);
- if (!ctx->transfers)
- return SR_ERR;
+ const unsigned int timeout = get_timeout(devc);
+ const unsigned int num_transfers = get_number_of_transfers(devc);
+ const size_t size = get_buffer_size(devc);
- ctx->num_transfers = num_transfers;
+ devc->transfers = g_try_malloc0(sizeof(*devc->transfers) * num_transfers);
+ if (!devc->transfers) {
+ sr_err("fx2lafw: USB transfers malloc failed.");
+ return SR_ERR_MALLOC;
+ }
+
+ devc->num_transfers = num_transfers;
for (i = 0; i < num_transfers; i++) {
if (!(buf = g_try_malloc(size))) {
return SR_ERR_MALLOC;
}
transfer = libusb_alloc_transfer(0);
- libusb_fill_bulk_transfer(transfer, ctx->usb->devhdl,
+ libusb_fill_bulk_transfer(transfer, devc->usb->devhdl,
2 | LIBUSB_ENDPOINT_IN, buf, size,
- receive_transfer, ctx, timeout);
- if (libusb_submit_transfer(transfer) != 0) {
+ receive_transfer, devc, timeout);
+ if ((ret = libusb_submit_transfer(transfer)) != 0) {
+ sr_err("fx2lafw: %s: libusb_submit_transfer: %s.",
+ __func__, libusb_error_name(ret));
libusb_free_transfer(transfer);
g_free(buf);
- abort_acquisition(ctx);
+ abort_acquisition(devc);
return SR_ERR;
}
- ctx->transfers[i] = transfer;
- ctx->submitted_transfers++;
+ devc->transfers[i] = transfer;
+ devc->submitted_transfers++;
}
- lupfd = libusb_get_pollfds(usb_context);
+ lupfd = libusb_get_pollfds(drvc->sr_ctx->libusb_ctx);
for (i = 0; lupfd[i]; i++)
sr_source_add(lupfd[i]->fd, lupfd[i]->events,
timeout, receive_data, NULL);
/* 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->sample_wide ? 16 : 8;
+ meta.samplerate = devc->cur_samplerate;
+ meta.num_probes = devc->sample_wide ? 16 : 8;
sr_session_send(cb_data, &packet);
- if ((ret = command_start_acquisition (ctx->usb->devhdl,
- ctx->cur_samplerate, ctx->sample_wide)) != SR_OK) {
- abort_acquisition(ctx);
+ if ((ret = command_start_acquisition (devc->usb->devhdl,
+ devc->cur_samplerate, devc->sample_wide)) != SR_OK) {
+ abort_acquisition(devc);
return ret;
}
}
/* TODO: This stops acquisition on ALL devices, ignoring dev_index. */
-static int hw_dev_acquisition_stop(const struct sr_dev_inst *sdi,
- void *cb_data)
+static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
{
-
- /* Avoid compiler warnings. */
(void)cb_data;
abort_acquisition(sdi->priv);
.init = hw_init,
.cleanup = hw_cleanup,
.scan = hw_scan,
+ .dev_list = hw_dev_list,
+ .dev_clear = clear_instances,
.dev_open = hw_dev_open,
.dev_close = hw_dev_close,
.info_get = hw_info_get,
- .dev_status_get = hw_dev_status_get,
.dev_config_set = hw_dev_config_set,
.dev_acquisition_start = hw_dev_acquisition_start,
.dev_acquisition_stop = hw_dev_acquisition_stop,
- .instances = NULL,
+ .priv = NULL,
};
projects / libsigrok.git / blobdiff