static struct sr_dev_inst *probe_device(struct sr_scpi_dev_inst *scpi)
{
struct sr_dev_inst *sdi;
struct dev_context *devc;
struct sr_scpi_hw_info *hw_info;
sdi = NULL;
devc = NULL;
hw_info = NULL;
if (sr_scpi_get_hw_id(scpi, &hw_info) != SR_OK) {
sr_info("Couldn't get IDN response.");
goto fail;
}
if (std_str_idx_s(hw_info->manufacturer, ARRAY_AND_SIZE(manufacturers)) < 0)
goto fail;
sdi = g_malloc0(sizeof(struct sr_dev_inst));
sdi->vendor = g_strdup(hw_info->manufacturer);
sdi->model = g_strdup(hw_info->model);
sdi->version = g_strdup(hw_info->firmware_version);
sdi->serial_num = g_strdup(hw_info->serial_number);
sdi->driver = &hameg_hmo_driver_info;
sdi->inst_type = SR_INST_SCPI;
sdi->conn = scpi;
sr_scpi_hw_info_free(hw_info);
hw_info = NULL;
devc = g_malloc0(sizeof(struct dev_context));
sdi->priv = devc;
if (hmo_init_device(sdi) != SR_OK)
goto fail;
return sdi;
fail:
sr_scpi_hw_info_free(hw_info);
sr_dev_inst_free(sdi);
g_free(devc);
return NULL;
}
/**
* Free the specified input instance and all associated resources.
*
* @since 0.4.0
*/
SR_API void sr_input_free(const struct sr_input *in)
{
if (!in)
return;
if (in->module->cleanup)
in->module->cleanup((struct sr_input *)in);
if (in->sdi)
sr_dev_inst_free(in->sdi);
if (in->buf->len > 64) {
/* That seems more than just some sub-unitsize leftover... */
sr_warn("Found %d unprocessed bytes at free time.", in->buf->len);
}
g_string_free(in->buf, TRUE);
g_free(in->priv);
g_free((gpointer)in);
}
/*
* Standard driver dev_clear() helper.
*
* This function can be used to implement the dev_clear() driver API
* callback. dev_close() is called before every sr_dev_inst is cleared.
*
* The only limitation is driver-specific device contexts (sdi->priv).
* These are freed, but any dynamic allocation within structs stored
* there cannot be freed.
*
* @param driver The driver which will have its instances released.
* @param clear_private If not NULL, this points to a function called
* with sdi->priv as argument. The function can then clear any device
* instance-specific resources kept there. It must also clear the struct
* pointed to by sdi->priv.
*
* @return SR_OK on success.
*/
SR_PRIV int std_dev_clear(const struct sr_dev_driver *driver,
std_dev_clear_t clear_private)
{
struct drv_context *drvc;
struct sr_dev_inst *sdi;
GSList *l;
int ret;
if (!(drvc = driver->priv))
/* Driver was never initialized, nothing to do. */
return SR_OK;
ret = SR_OK;
for (l = drvc->instances; l; l = l->next) {
if (!(sdi = l->data)) {
ret = SR_ERR_BUG;
continue;
}
if (driver->dev_close)
driver->dev_close(sdi);
if (sdi->conn) {
#ifdef HAVE_LIBSERIALPORT
if (sdi->inst_type == SR_INST_SERIAL)
sr_serial_dev_inst_free(sdi->conn);
#endif
#ifdef HAVE_LIBUSB_1_0
if (sdi->inst_type == SR_INST_USB)
sr_usb_dev_inst_free(sdi->conn);
#endif
if (sdi->inst_type == SR_INST_SCPI)
sr_scpi_free(sdi->conn);
}
if (clear_private)
clear_private(sdi->priv);
else
g_free(sdi->priv);
sr_dev_inst_free(sdi);
}
g_slist_free(drvc->instances);
drvc->instances = NULL;
return ret;
}
static int hw_cleanup(void)
{
GSList *l;
struct sr_dev_inst *sdi;
struct context *ctx;
/* Properly close and free all devices. */
for (l = genericdmm_dev_insts; l; l = l->next) {
if (!(sdi = l->data)) {
/* Log error, but continue cleaning up the rest. */
sr_err("genericdmm: sdi was NULL, continuing.");
continue;
}
if (!(ctx = sdi->priv)) {
/* Log error, but continue cleaning up the rest. */
sr_err("genericdmm: sdi->priv was NULL, continuing.");
continue;
}
if (ctx->profile) {
switch (ctx->profile->transport) {
case DMM_TRANSPORT_USBHID:
/* TODO */
break;
case DMM_TRANSPORT_SERIAL:
if (ctx->serial && ctx->serial->fd != -1)
serial_close(ctx->serial->fd);
sr_serial_dev_inst_free(ctx->serial);
break;
}
}
sr_dev_inst_free(sdi);
}
g_slist_free(genericdmm_dev_insts);
genericdmm_dev_insts = NULL;
if (genericdmm_usb_context)
libusb_exit(genericdmm_usb_context);
return SR_OK;
}
static int hw_cleanup(void)
{
GSList *l;
struct sr_dev_inst *sdi;
for (l = dev_insts; l; l = l->next) {
sdi = l->data;
/* Properly close all devices... */
close_dev(sdi);
/* ...and free all their memory. */
sr_dev_inst_free(sdi);
}
g_slist_free(dev_insts);
dev_insts = NULL;
if (usb_context)
libusb_exit(usb_context);
usb_context = NULL;
return SR_OK;
}
static GSList *hw_scan(GSList *options)
{
int i;
GSList *devices = NULL;
const char *conn = NULL;
const char *serialcomm = NULL;
GSList *l;
struct sr_config *src;
struct udev *udev;
(void)options;
for (l = options; l; l = l->next) {
src = l->data;
switch (src->key) {
case SR_CONF_CONN:
conn = src->value;
break;
case SR_CONF_SERIALCOMM:
serialcomm = src->value;
break;
}
}
if (!conn)
conn = SERIALCONN;
if (serialcomm == NULL)
serialcomm = SERIALCOMM;
udev = udev_new();
if (!udev) {
sr_err("Failed to initialize udev.");
}
struct udev_enumerate *enumerate = udev_enumerate_new(udev);
udev_enumerate_add_match_subsystem(enumerate, "usb-serial");
udev_enumerate_scan_devices(enumerate);
struct udev_list_entry *devs = udev_enumerate_get_list_entry(enumerate);
struct udev_list_entry *dev_list_entry;
for (dev_list_entry = devs;
dev_list_entry != NULL;
dev_list_entry = udev_list_entry_get_next(dev_list_entry)) {
const char *syspath = udev_list_entry_get_name(dev_list_entry);
struct udev_device *dev =
udev_device_new_from_syspath(udev, syspath);
const char *sysname = udev_device_get_sysname(dev);
struct udev_device *parent =
udev_device_get_parent_with_subsystem_devtype(dev, "usb",
"usb_device");
if (!parent) {
sr_err("Unable to find parent usb device for %s",
sysname);
continue;
}
const char *idVendor =
udev_device_get_sysattr_value(parent, "idVendor");
const char *idProduct =
udev_device_get_sysattr_value(parent, "idProduct");
if (strcmp(USB_VENDOR, idVendor)
|| strcmp(USB_PRODUCT, idProduct))
continue;
const char *iSerial =
udev_device_get_sysattr_value(parent, "serial");
const char *iProduct =
udev_device_get_sysattr_value(parent, "product");
char path[32];
snprintf(path, sizeof(path), "/dev/%s", sysname);
conn = path;
size_t s = strcspn(iProduct, " ");
char product[32];
char manufacturer[32];
if (s > sizeof(product) ||
strlen(iProduct) - s > sizeof(manufacturer)) {
sr_err("Could not parse iProduct: %s.", iProduct);
continue;
}
strncpy(product, iProduct, s);
product[s] = 0;
strcpy(manufacturer, iProduct + s + 1);
//Create the device context and set its params
struct dev_context *devc;
if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
sr_err("Device context malloc failed.");
return devices;
}
if (mso_parse_serial(iSerial, iProduct, devc) != SR_OK) {
sr_err("Invalid iSerial: %s.", iSerial);
g_free(devc);
return devices;
}
char hwrev[32];
sprintf(hwrev, "r%d", devc->hwrev);
devc->ctlbase1 = 0;
devc->protocol_trigger.spimode = 0;
for (i = 0; i < 4; i++) {
devc->protocol_trigger.word[i] = 0;
devc->protocol_trigger.mask[i] = 0xff;
}
if (!(devc->serial = sr_serial_dev_inst_new(conn, serialcomm))) {
g_free(devc);
return devices;
}
struct sr_dev_inst *sdi = sr_dev_inst_new(0, SR_ST_INACTIVE,
manufacturer, product, hwrev);
if (!sdi) {
sr_err("Unable to create device instance for %s",
sysname);
sr_dev_inst_free(sdi);
g_free(devc);
return devices;
}
sdi->driver = di;
sdi->priv = devc;
for (i = 0; i < NUM_PROBES; i++) {
struct sr_probe *probe;
if (!(probe = sr_probe_new(i, SR_PROBE_LOGIC, TRUE,
mso19_probe_names[i])))
return 0;
sdi->probes = g_slist_append(sdi->probes, probe);
}
//Add the driver
struct drv_context *drvc = di->priv;
drvc->instances = g_slist_append(drvc->instances, sdi);
devices = g_slist_append(devices, sdi);
}
return devices;
}
static GSList *scan(struct sr_dev_driver *di, GSList *options)
{
int i, model_id;
struct drv_context *drvc;
struct dev_context *devc;
struct sr_dev_inst *sdi;
struct sr_config *src;
GSList *devices, *l;
const char *conn, *serialcomm;
struct sr_serial_dev_inst *serial;
char reply[50], **tokens, *dummy;
drvc = di->context;
drvc->instances = NULL;
devices = NULL;
conn = NULL;
serialcomm = NULL;
devc = NULL;
for (l = options; l; l = l->next) {
src = l->data;
switch (src->key) {
case SR_CONF_CONN:
conn = g_variant_get_string(src->data, NULL);
break;
case SR_CONF_SERIALCOMM:
serialcomm = g_variant_get_string(src->data, NULL);
break;
default:
sr_err("Unknown option %d, skipping.", src->key);
break;
}
}
if (!conn)
return NULL;
if (!serialcomm)
serialcomm = "9600/8n1";
serial = sr_serial_dev_inst_new(conn, serialcomm);
if (serial_open(serial, SERIAL_RDWR) != SR_OK)
return NULL;
serial_flush(serial);
sr_info("Probing serial port %s.", conn);
/* Get the device model. */
memset(&reply, 0, sizeof(reply));
if ((hcs_send_cmd(serial, "GMOD\r") < 0) ||
(hcs_read_reply(serial, 2, reply, sizeof(reply)) < 0))
return NULL;
tokens = g_strsplit((const gchar *)&reply, "\r", 2);
model_id = -1;
for (i = 0; models[i].id != NULL; i++) {
if (!strcmp(models[i].id, tokens[0]))
model_id = i;
}
if (model_id < 0) {
sr_err("Unknown model ID '%s' detected, aborting.", tokens[0]);
g_strfreev(tokens);
return NULL;
}
g_strfreev(tokens);
/* Init device instance, etc. */
sdi = g_malloc0(sizeof(struct sr_dev_inst));
sdi->status = SR_ST_INACTIVE;
sdi->vendor = g_strdup("Manson");
sdi->model = g_strdup(models[model_id].name);
sdi->inst_type = SR_INST_SERIAL;
sdi->conn = serial;
sdi->driver = di;
sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "CH1");
devc = g_malloc0(sizeof(struct dev_context));
sr_sw_limits_init(&devc->limits);
devc->model = &models[model_id];
sdi->priv = devc;
/* Get current voltage, current, status. */
if ((hcs_send_cmd(serial, "GETD\r") < 0) ||
(hcs_read_reply(serial, 2, reply, sizeof(reply)) < 0))
goto exit_err;
tokens = g_strsplit((const gchar *)&reply, "\r", 2);
if (hcs_parse_volt_curr_mode(sdi, tokens) < 0) {
g_strfreev(tokens);
goto exit_err;
}
g_strfreev(tokens);
/* Get max. voltage and current. */
if ((hcs_send_cmd(serial, "GMAX\r") < 0) ||
(hcs_read_reply(serial, 2, reply, sizeof(reply)) < 0))
goto exit_err;
tokens = g_strsplit((const gchar *)&reply, "\r", 2);
devc->current_max_device = g_strtod(&tokens[0][3], &dummy) * devc->model->current[2];
tokens[0][3] = '\0';
devc->voltage_max_device = g_strtod(tokens[0], &dummy) * devc->model->voltage[2];
g_strfreev(tokens);
drvc->instances = g_slist_append(drvc->instances, sdi);
devices = g_slist_append(devices, sdi);
serial_close(serial);
if (!devices)
sr_serial_dev_inst_free(serial);
return devices;
exit_err:
sr_dev_inst_free(sdi);
g_free(devc);
return NULL;
}
/**
* Scan for Metrahit 2x in a bidirectional mode using Gossen Metrawatt
* 'BD 232' interface.
*/
static GSList *scan_2x_bd232(struct sr_dev_driver *di, GSList *options)
{
struct sr_dev_inst *sdi;
struct drv_context *drvc;
struct dev_context *devc;
struct sr_config *src;
struct sr_serial_dev_inst *serial;
GSList *l, *devices;
const char *conn, *serialcomm;
int cnt, byte;
gint64 timeout_us;
sdi = NULL;
devc = NULL;
conn = serialcomm = NULL;
devices = NULL;
drvc = di->context;
drvc->instances = NULL;
sr_spew("scan_2x_bd232() called!");
for (l = options; l; l = l->next) {
src = l->data;
switch (src->key) {
case SR_CONF_CONN:
conn = g_variant_get_string(src->data, NULL);
break;
case SR_CONF_SERIALCOMM:
serialcomm = g_variant_get_string(src->data, NULL);
break;
}
}
if (!conn)
return NULL;
if (!serialcomm)
serialcomm = SERIALCOMM_2X;
serial = sr_serial_dev_inst_new(conn, serialcomm);
if (serial_open(serial, SERIAL_RDWR) != SR_OK)
goto exit_err;
devc = g_malloc0(sizeof(struct dev_context));
sdi = g_malloc0(sizeof(struct sr_dev_inst));
sdi->status = SR_ST_INACTIVE;
sdi->vendor = g_strdup(VENDOR_GMC);
sdi->priv = devc;
/* Send message 03 "Query multimeter version and status" */
sdi->conn = serial;
if (req_stat14(sdi, TRUE) != SR_OK)
goto exit_err;
/* Wait for reply from device(s) for up to 2s. */
timeout_us = g_get_monotonic_time() + (2 * 1000 * 1000);
while (timeout_us > g_get_monotonic_time()) {
/* Receive reply (14 bytes) */
devc->buflen = 0;
for (cnt = 0; cnt < GMC_REPLY_SIZE; cnt++) {
byte = read_byte(serial, timeout_us);
if (byte != -1)
devc->buf[devc->buflen++] = (byte & MASK_6BITS);
}
if (devc->buflen != GMC_REPLY_SIZE)
continue;
devc->addr = devc->buf[0];
process_msg14(sdi);
devc->buflen = 0;
if (devc->model != METRAHIT_NONE) {
sr_spew("%s %s detected!", VENDOR_GMC, gmc_model_str(devc->model));
devc->elapsed_msec = g_timer_new();
sdi->model = g_strdup(gmc_model_str(devc->model));
sdi->version = g_strdup_printf("Firmware %d.%d", devc->fw_ver_maj, devc->fw_ver_min);
sdi->conn = serial;
sdi->priv = devc;
sdi->driver = di;
sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1");
drvc->instances = g_slist_append(drvc->instances, sdi);
devices = g_slist_append(devices, sdi);
devc = g_malloc0(sizeof(struct dev_context));
sdi = g_malloc0(sizeof(struct sr_dev_inst));
sdi->status = SR_ST_INACTIVE;
sdi->vendor = g_strdup(VENDOR_GMC);
}
};
/* Free last alloc if no device found */
if (devc->model == METRAHIT_NONE) {
g_free(devc);
sr_dev_inst_free(sdi);
}
return devices;
exit_err:
sr_info("scan_2x_bd232(): Error!");
if (serial)
sr_serial_dev_inst_free(serial);
g_free(devc);
if (sdi)
sr_dev_inst_free(sdi);
return NULL;
}
static GSList *scan(struct sr_dev_driver *di, GSList *options)
{
struct drv_context *drvc;
struct dev_context *devc;
GSList *devices, *l;
struct sr_dev_inst *sdi;
struct sr_config *src;
const char *conn, *serialcomm;
struct sr_serial_dev_inst *serial;
char reply[50];
int i, model_id;
unsigned int len;
devices = NULL;
conn = NULL;
serialcomm = NULL;
drvc = di->context;
drvc->instances = NULL;
for (l = options; l; l = l->next) {
src = l->data;
switch (src->key) {
case SR_CONF_CONN:
conn = g_variant_get_string(src->data, NULL);
break;
case SR_CONF_SERIALCOMM:
serialcomm = g_variant_get_string(src->data, NULL);
break;
default:
sr_err("Unknown option %d, skipping.", src->key);
break;
}
}
if (!conn)
return NULL;
if (!serialcomm)
serialcomm = "9600/8n1";
serial = sr_serial_dev_inst_new(conn, serialcomm);
if (serial_open(serial, SERIAL_RDWR) != SR_OK)
return NULL;
serial_flush(serial);
/* Get the device model. */
len = 0;
for (i = 0; models[i].id; i++) {
if (strlen(models[i].id) > len)
len = strlen(models[i].id);
}
memset(&reply, 0, sizeof(reply));
sr_dbg("Want max %d bytes.", len);
if ((korad_kdxxxxp_send_cmd(serial, "*IDN?") < 0))
return NULL;
/* i is used here for debug purposes only. */
if ((i = korad_kdxxxxp_read_chars(serial, len, reply)) < 0)
return NULL;
sr_dbg("Received: %d, %s", i, reply);
model_id = -1;
for (i = 0; models[i].id; i++) {
if (!strcmp(models[i].id, reply))
model_id = i;
}
if (model_id < 0) {
sr_err("Unknown model ID '%s' detected, aborting.", reply);
return NULL;
}
sr_dbg("Found: %s %s", models[model_id].vendor, models[model_id].name);
/* Init device instance, etc. */
sdi = g_malloc0(sizeof(struct sr_dev_inst));
sdi->status = SR_ST_INACTIVE;
sdi->vendor = g_strdup(models[model_id].vendor);
sdi->model = g_strdup(models[model_id].name);
sdi->inst_type = SR_INST_SERIAL;
sdi->conn = serial;
sdi->driver = di;
sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "CH1");
devc = g_malloc0(sizeof(struct dev_context));
devc->model = &models[model_id];
devc->reply[5] = 0;
devc->req_sent_at = 0;
sdi->priv = devc;
/* Get current status of device. */
if (korad_kdxxxxp_get_all_values(serial, devc) < 0)
goto exit_err;
drvc->instances = g_slist_append(drvc->instances, sdi);
devices = g_slist_append(devices, sdi);
serial_close(serial);
if (!devices)
sr_serial_dev_inst_free(serial);
return devices;
exit_err:
sr_dev_inst_free(sdi);
g_free(devc);
sr_dbg("Scan failed.");
return NULL;
}