* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
+#include <config.h>
#include <glib.h>
#include <libusb.h>
#include <stdlib.h>
#include <string.h>
-#include "libsigrok.h"
+#include <libsigrok/libsigrok.h>
#include "libsigrok-internal.h"
#include "protocol.h"
#define VICTOR_PID 0xd237
#define VICTOR_VENDOR "Victor"
#define VICTOR_INTERFACE 0
-#define VICTOR_ENDPOINT LIBUSB_ENDPOINT_IN | 1
-
-SR_PRIV struct sr_dev_driver victor_dmm_driver_info;
-static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data);
+#define VICTOR_ENDPOINT (LIBUSB_ENDPOINT_IN | 1)
static const uint32_t drvopts[] = {
SR_CONF_MULTIMETER,
};
+
static const uint32_t scanopts[] = {
SR_CONF_CONN,
};
SR_CONF_CONN | SR_CONF_GET,
};
-static int init(struct sr_dev_driver *di, struct sr_context *sr_ctx)
-{
- return std_init(sr_ctx, di, LOG_PREFIX);
-}
-
static GSList *scan(struct sr_dev_driver *di, GSList *options)
{
struct drv_context *drvc;
struct libusb_device_descriptor des;
libusb_device **devlist;
GSList *devices;
- int ret, i;
+ int i;
char connection_id[64];
(void)options;
- drvc = di->priv;
+ drvc = di->context;
devices = NULL;
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("Failed to get device descriptor: %s",
- libusb_error_name(ret));
- continue;
- }
+ libusb_get_device_descriptor(devlist[i], &des);
if (des.idVendor != VICTOR_VID || des.idProduct != VICTOR_PID)
continue;
sdi = g_malloc0(sizeof(struct sr_dev_inst));
sdi->status = SR_ST_INACTIVE;
sdi->vendor = g_strdup(VICTOR_VENDOR);
- sdi->driver = di;
sdi->connection_id = g_strdup(connection_id);
devc = g_malloc0(sizeof(struct dev_context));
+ sr_sw_limits_init(&devc->limits);
sdi->priv = devc;
sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1");
-
sdi->conn = sr_usb_dev_inst_new(libusb_get_bus_number(devlist[i]),
libusb_get_device_address(devlist[i]), NULL);
sdi->inst_type = SR_INST_USB;
- drvc->instances = g_slist_append(drvc->instances, sdi);
devices = g_slist_append(devices, sdi);
}
libusb_free_device_list(devlist, 1);
- return devices;
-}
-
-static GSList *dev_list(const struct sr_dev_driver *di)
-{
- return ((struct drv_context *)(di->priv))->instances;
+ return std_scan_complete(di, devices);
}
static int dev_open(struct sr_dev_inst *sdi)
{
struct sr_dev_driver *di = sdi->driver;
- struct drv_context *drvc = di->priv;
+ struct drv_context *drvc = di->context;
struct sr_usb_dev_inst *usb;
- libusb_device **devlist;
- int ret, i;
- char connection_id[64];
-
- if (!di->priv) {
- sr_err("Driver was not initialized.");
- return SR_ERR;
- }
+ int ret;
usb = sdi->conn;
- libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);
- for (i = 0; devlist[i]; i++) {
- usb_get_port_path(devlist[i], connection_id, sizeof(connection_id));
- if (strcmp(sdi->connection_id, connection_id))
- continue;
- if ((ret = libusb_open(devlist[i], &usb->devhdl))) {
- sr_err("Failed to open device: %s.", libusb_error_name(ret));
- return SR_ERR;
- }
- break;
- }
- libusb_free_device_list(devlist, 1);
- if (!devlist[i]) {
- sr_err("Device not found.");
- return SR_ERR;
- }
+ ret = sr_usb_open(drvc->sr_ctx->libusb_ctx, usb);
+ if (ret != SR_OK)
+ return ret;
/* The device reports as HID class, so the kernel would have
* claimed it. */
sr_err("Failed to claim interface: %s.", libusb_error_name(ret));
return SR_ERR;
}
- sdi->status = SR_ST_ACTIVE;
return SR_OK;
}
static int dev_close(struct sr_dev_inst *sdi)
{
- struct sr_dev_driver *di = sdi->driver;
struct sr_usb_dev_inst *usb;
- if (!di->priv) {
- sr_err("Driver was not initialized.");
- return SR_ERR;
- }
-
usb = sdi->conn;
if (!usb->devhdl)
- /* Nothing to do. */
- return SR_OK;
+ return SR_ERR_BUG;
libusb_release_interface(usb->devhdl, VICTOR_INTERFACE);
libusb_close(usb->devhdl);
usb->devhdl = NULL;
- sdi->status = SR_ST_INACTIVE;
return SR_OK;
}
-static int cleanup(const struct sr_dev_driver *di)
-{
- int ret;
- struct drv_context *drvc;
-
- if (!(drvc = di->priv))
- /* Can get called on an unused driver, doesn't matter. */
- return SR_OK;
-
-
- ret = std_dev_clear(di, NULL);
- g_free(drvc);
-
- return ret;
-}
-
static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
const struct sr_channel_group *cg)
{
+ struct dev_context *devc = sdi->priv;
struct sr_usb_dev_inst *usb;
char str[128];
snprintf(str, 128, "%d.%d", usb->bus, usb->address);
*data = g_variant_new_string(str);
break;
+ case SR_CONF_LIMIT_SAMPLES:
+ case SR_CONF_LIMIT_MSEC:
+ return sr_sw_limits_config_get(&devc->limits, key, data);
default:
return SR_ERR_NA;
}
static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
const struct sr_channel_group *cg)
{
- struct sr_dev_driver *di = sdi->driver;
struct dev_context *devc;
- gint64 now;
- int ret;
(void)cg;
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR_DEV_CLOSED;
-
- if (!di->priv) {
- sr_err("Driver was not initialized.");
- return SR_ERR;
- }
-
devc = sdi->priv;
- ret = SR_OK;
- switch (key) {
- case SR_CONF_LIMIT_MSEC:
- devc->limit_msec = g_variant_get_uint64(data);
- now = g_get_monotonic_time() / 1000;
- devc->end_time = now + devc->limit_msec;
- sr_dbg("Setting time limit to %" PRIu64 "ms.",
- devc->limit_msec);
- break;
- case SR_CONF_LIMIT_SAMPLES:
- devc->limit_samples = g_variant_get_uint64(data);
- sr_dbg("Setting sample limit to %" PRIu64 ".",
- devc->limit_samples);
- break;
- default:
- ret = SR_ERR_NA;
- }
- return ret;
+ return sr_sw_limits_config_set(&devc->limits, key, data);
}
static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
return SR_OK;
}
-static void receive_transfer(struct libusb_transfer *transfer)
+static void LIBUSB_CALL receive_transfer(struct libusb_transfer *transfer)
{
struct dev_context *devc;
struct sr_dev_inst *sdi;
devc = sdi->priv;
if (transfer->status == LIBUSB_TRANSFER_NO_DEVICE) {
/* USB device was unplugged. */
- dev_acquisition_stop(sdi, sdi);
+ sr_dev_acquisition_stop(sdi);
} else if (transfer->status == LIBUSB_TRANSFER_COMPLETED) {
sr_dbg("Got %d-byte packet.", transfer->actual_length);
if (transfer->actual_length == DMM_DATA_SIZE) {
victor_dmm_receive_data(sdi, transfer->buffer);
- if (devc->limit_samples) {
- if (devc->num_samples >= devc->limit_samples)
- dev_acquisition_stop(sdi, sdi);
- }
+ if (sr_sw_limits_check(&devc->limits))
+ sr_dev_acquisition_stop(sdi);
}
}
/* Anything else is either an error or a timeout, which is fine:
libusb_error_name(ret));
g_free(transfer->buffer);
libusb_free_transfer(transfer);
- dev_acquisition_stop(sdi, sdi);
+ sr_dev_acquisition_stop(sdi);
}
} else {
/* This was the last transfer we're going to receive, so
{
struct dev_context *devc;
struct drv_context *drvc;
- struct sr_datafeed_packet packet;
struct sr_dev_inst *sdi;
struct sr_dev_driver *di;
struct timeval tv;
- gint64 now;
(void)fd;
(void)revents;
sdi = cb_data;
devc = sdi->priv;
di = sdi->driver;
- drvc = di->priv;
+ drvc = di->context;
- if (devc->limit_msec) {
- now = g_get_monotonic_time() / 1000;
- if (now > devc->end_time)
- dev_acquisition_stop(sdi, sdi);
- }
+ if (sr_sw_limits_check(&devc->limits))
+ sr_dev_acquisition_stop(sdi);
if (sdi->status == SR_ST_STOPPING) {
usb_source_remove(sdi->session, drvc->sr_ctx);
-
dev_close(sdi);
-
- packet.type = SR_DF_END;
- sr_session_send(cb_data, &packet);
+ std_session_send_df_end(sdi);
}
memset(&tv, 0, sizeof(struct timeval));
return TRUE;
}
-static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
+static int dev_acquisition_start(const struct sr_dev_inst *sdi)
{
struct sr_dev_driver *di = sdi->driver;
- struct dev_context *devc;
- struct drv_context *drvc = di->priv;
+ struct drv_context *drvc = di->context;
struct sr_usb_dev_inst *usb;
struct libusb_transfer *transfer;
int ret;
unsigned char *buf;
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR_DEV_CLOSED;
-
- if (!di->priv) {
- sr_err("Driver was not initialized.");
- return SR_ERR;
- }
-
- devc = sdi->priv;
usb = sdi->conn;
- devc->cb_data = cb_data;
- /* Send header packet to the session bus. */
- std_session_send_df_header(cb_data, LOG_PREFIX);
+ std_session_send_df_header(sdi);
usb_source_add(sdi->session, drvc->sr_ctx, 100,
handle_events, (void *)sdi);
- buf = g_try_malloc(DMM_DATA_SIZE);
+ buf = g_malloc(DMM_DATA_SIZE);
transfer = libusb_alloc_transfer(0);
/* Each transfer request gets 100ms to arrive before it's restarted.
* The device only sends 1 transfer/second no matter how many
* handling above. */
libusb_fill_interrupt_transfer(transfer, usb->devhdl,
VICTOR_ENDPOINT, buf, DMM_DATA_SIZE, receive_transfer,
- cb_data, 100);
+ (struct sr_dev_inst *)sdi, 100);
if ((ret = libusb_submit_transfer(transfer) != 0)) {
sr_err("Unable to submit transfer: %s.", libusb_error_name(ret));
libusb_free_transfer(transfer);
return SR_OK;
}
-static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
+static int dev_acquisition_stop(struct sr_dev_inst *sdi)
{
- struct sr_dev_driver *di = sdi->driver;
- (void)cb_data;
-
- if (!di->priv) {
- sr_err("Driver was not initialized.");
- return SR_ERR;
- }
-
- if (sdi->status != SR_ST_ACTIVE) {
- sr_err("Device not active, can't stop acquisition.");
- return SR_ERR;
- }
-
sdi->status = SR_ST_STOPPING;
return SR_OK;
}
-SR_PRIV struct sr_dev_driver victor_dmm_driver_info = {
+static struct sr_dev_driver victor_dmm_driver_info = {
.name = "victor-dmm",
.longname = "Victor DMMs",
.api_version = 1,
- .init = init,
- .cleanup = cleanup,
+ .init = std_init,
+ .cleanup = std_cleanup,
.scan = scan,
- .dev_list = dev_list,
+ .dev_list = std_dev_list,
.dev_clear = NULL,
.config_get = config_get,
.config_set = config_set,
.dev_close = dev_close,
.dev_acquisition_start = dev_acquisition_start,
.dev_acquisition_stop = dev_acquisition_stop,
- .priv = NULL,
+ .context = NULL,
};
+SR_REGISTER_DEV_DRIVER(victor_dmm_driver_info);
projects / libsigrok.git / blobdiff