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port-probe: avoid QCDM port probing if not for specific plugins

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The QCDM/DIAG port is usually nowadays exclusively used by applications
gathering traces from the modem, so avoid port probing and grabbing
when plugins set the property MM_PLUGIN_ALLOWED_QCDM.

A new property MM_PLUGIN_REQUIRED_QCDM is created for those plugins
requiring the QCDM port for properly using a modem.
This commit is contained in:
Daniele Palmas
2022-05-05 11:29:32 +02:00
committed by Aleksander Morgado
parent 661a63b37b
commit d6203265c2
4 changed files with 107 additions and 70 deletions
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22
src/mm-plugin.c
View File

@@ -91,6 +91,7 @@ struct _MMPluginPrivate {
gboolean at;
gboolean single_at;
gboolean qcdm;
gboolean qcdm_required;
gboolean qmi;
gboolean mbim;
gboolean icera_probe;
@@ -124,6 +125,7 @@ enum {
PROP_ALLOWED_AT,
PROP_ALLOWED_SINGLE_AT,
PROP_ALLOWED_QCDM,
PROP_REQUIRED_QCDM,
PROP_ALLOWED_QMI,
PROP_ALLOWED_MBIM,
PROP_ICERA_PROBE,
@@ -802,7 +804,7 @@ mm_plugin_supports_port (MMPlugin *self,
probe_run_flags |= MM_PORT_PROBE_AT;
else if (self->priv->single_at)
probe_run_flags |= MM_PORT_PROBE_AT;
if (self->priv->qcdm)
if (self->priv->qcdm || self->priv->qcdm_required)
probe_run_flags |= MM_PORT_PROBE_QCDM;
} else if (g_str_equal (mm_kernel_device_get_subsystem (port), "usbmisc")) {
if (self->priv->qmi && !g_strcmp0 (mm_kernel_device_get_driver (port), "qmi_wwan"))
@@ -821,7 +823,7 @@ mm_plugin_supports_port (MMPlugin *self,
probe_run_flags |= MM_PORT_PROBE_MBIM;
if (self->priv->qmi)
probe_run_flags |= MM_PORT_PROBE_QMI;
if (self->priv->qcdm)
if (self->priv->qcdm || self->priv->qcdm_required)
probe_run_flags |= MM_PORT_PROBE_QCDM;
if (self->priv->at)
probe_run_flags |= MM_PORT_PROBE_AT;
@@ -893,6 +895,7 @@ mm_plugin_supports_port (MMPlugin *self,
self->priv->send_lf,
self->priv->custom_at_probe,
self->priv->custom_init,
self->priv->qcdm_required,
cancellable,
(GAsyncReadyCallback) port_probe_run_ready,
task);
@@ -1238,6 +1241,10 @@ set_property (GObject *object,
/* Construct only */
self->priv->qcdm = g_value_get_boolean (value);
break;
case PROP_REQUIRED_QCDM:
/* Construct only */
self->priv->qcdm_required = g_value_get_boolean (value);
break;
case PROP_ALLOWED_QMI:
/* Construct only */
self->priv->qmi = g_value_get_boolean (value);
@@ -1350,6 +1357,9 @@ get_property (GObject *object,
case PROP_ALLOWED_QCDM:
g_value_set_boolean (value, self->priv->qcdm);
break;
case PROP_REQUIRED_QCDM:
g_value_set_boolean (value, self->priv->qcdm_required);
break;
case PROP_ALLOWED_QMI:
g_value_set_boolean (value, self->priv->qmi);
break;
@@ -1583,6 +1593,14 @@ mm_plugin_class_init (MMPluginClass *klass)
FALSE,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
g_object_class_install_property
(object_class, PROP_REQUIRED_QCDM,
g_param_spec_boolean (MM_PLUGIN_REQUIRED_QCDM,
"Required QCDM",
"Whether QCDM ports are required in this plugin",
FALSE,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
g_object_class_install_property
(object_class, PROP_ALLOWED_QMI,
g_param_spec_boolean (MM_PLUGIN_ALLOWED_QMI,

1
src/mm-plugin.h
View File

@@ -62,6 +62,7 @@
#define MM_PLUGIN_ALLOWED_AT "allowed-at"
#define MM_PLUGIN_ALLOWED_SINGLE_AT "allowed-single-at"
#define MM_PLUGIN_ALLOWED_QCDM "allowed-qcdm"
#define MM_PLUGIN_REQUIRED_QCDM "required-qcdm"
#define MM_PLUGIN_ALLOWED_QMI "allowed-qmi"
#define MM_PLUGIN_ALLOWED_MBIM "allowed-mbim"
#define MM_PLUGIN_ICERA_PROBE "icera-probe"

153
src/mm-port-probe.c
View File

@@ -380,6 +380,9 @@ typedef struct {
/* ---- MBIM probing specific context ---- */
MMPortMbim *mbim_port;
#endif
/* ---- QCDM probing specific context ---- */
gboolean qcdm_required;
} PortProbeRunContext;
static gboolean serial_probe_at (MMPortProbe *self);
@@ -756,84 +759,96 @@ serial_probe_qcdm (MMPortProbe *self)
if (port_probe_task_return_error_if_cancelled (self))
return G_SOURCE_REMOVE;
mm_obj_dbg (self, "probing QCDM...");
/* Check if port requires QCDM probing */
if (!ctx->qcdm_required) {
/* Ok, this is probably a QCDM port */
mm_obj_dbg (self, "Likely a QCDM port, but plugin does not require probing and grabbing...");
mm_port_probe_set_result_qcdm (self, TRUE);
self->priv->is_ignored = TRUE;
/* Reschedule probing */
serial_probe_schedule (self);
/* If open, close the AT port */
if (ctx->serial) {
/* Explicitly clear the buffer full signal handler */
if (ctx->buffer_full_id) {
g_signal_handler_disconnect (ctx->serial, ctx->buffer_full_id);
ctx->buffer_full_id = 0;
return G_SOURCE_REMOVE;
} else {
mm_obj_dbg (self, "probing QCDM...");
/* If open, close the AT port */
if (ctx->serial) {
/* Explicitly clear the buffer full signal handler */
if (ctx->buffer_full_id) {
g_signal_handler_disconnect (ctx->serial, ctx->buffer_full_id);
ctx->buffer_full_id = 0;
}
mm_port_serial_close (ctx->serial);
g_object_unref (ctx->serial);
}
mm_port_serial_close (ctx->serial);
g_object_unref (ctx->serial);
}
if (g_str_equal (mm_kernel_device_get_subsystem (self->priv->port), "wwan"))
subsys = MM_PORT_SUBSYS_WWAN;
if (g_str_equal (mm_kernel_device_get_subsystem (self->priv->port), "wwan"))
subsys = MM_PORT_SUBSYS_WWAN;
/* Open the QCDM port */
ctx->serial = MM_PORT_SERIAL (mm_port_serial_qcdm_new (mm_kernel_device_get_name (self->priv->port), subsys));
if (!ctx->serial) {
port_probe_task_return_error (self,
g_error_new (MM_CORE_ERROR,
MM_CORE_ERROR_FAILED,
"(%s/%s) Couldn't create QCDM port",
mm_kernel_device_get_subsystem (self->priv->port),
mm_kernel_device_get_name (self->priv->port)));
return G_SOURCE_REMOVE;
}
/* Open the QCDM port */
ctx->serial = MM_PORT_SERIAL (mm_port_serial_qcdm_new (mm_kernel_device_get_name (self->priv->port), subsys));
if (!ctx->serial) {
port_probe_task_return_error (self,
g_error_new (MM_CORE_ERROR,
MM_CORE_ERROR_FAILED,
"(%s/%s) Couldn't create QCDM port",
mm_kernel_device_get_subsystem (self->priv->port),
mm_kernel_device_get_name (self->priv->port)));
return G_SOURCE_REMOVE;
}
/* Setup port if needed */
common_serial_port_setup (self, ctx->serial);
/* Setup port if needed */
common_serial_port_setup (self, ctx->serial);
/* Try to open the port */
if (!mm_port_serial_open (ctx->serial, &error)) {
port_probe_task_return_error (self,
g_error_new (MM_SERIAL_ERROR,
MM_SERIAL_ERROR_OPEN_FAILED,
"(%s/%s) Failed to open QCDM port: %s",
mm_kernel_device_get_subsystem (self->priv->port),
mm_kernel_device_get_name (self->priv->port),
(error ? error->message : "unknown error")));
g_clear_error (&error);
return G_SOURCE_REMOVE;
}
/* Try to open the port */
if (!mm_port_serial_open (ctx->serial, &error)) {
port_probe_task_return_error (self,
g_error_new (MM_SERIAL_ERROR,
MM_SERIAL_ERROR_OPEN_FAILED,
"(%s/%s) Failed to open QCDM port: %s",
mm_kernel_device_get_subsystem (self->priv->port),
mm_kernel_device_get_name (self->priv->port),
(error ? error->message : "unknown error")));
g_clear_error (&error);
return G_SOURCE_REMOVE;
}
/* Build up the probe command; 0x7E is the frame marker, so put one at the
* beginning of the buffer to ensure that the device discards any AT
* commands that probing might have sent earlier. Should help devices
* respond more quickly and speed up QCDM probing.
*/
verinfo = g_byte_array_sized_new (10);
g_byte_array_append (verinfo, &marker, 1);
len = qcdm_cmd_version_info_new ((char *) (verinfo->data + 1), 9);
if (len <= 0) {
/* Build up the probe command; 0x7E is the frame marker, so put one at the
* beginning of the buffer to ensure that the device discards any AT
* commands that probing might have sent earlier. Should help devices
* respond more quickly and speed up QCDM probing.
*/
verinfo = g_byte_array_sized_new (10);
g_byte_array_append (verinfo, &marker, 1);
len = qcdm_cmd_version_info_new ((char *) (verinfo->data + 1), 9);
if (len <= 0) {
g_byte_array_unref (verinfo);
port_probe_task_return_error (self,
g_error_new (MM_SERIAL_ERROR,
MM_SERIAL_ERROR_OPEN_FAILED,
"(%s/%s) Failed to create QCDM version info command",
mm_kernel_device_get_subsystem (self->priv->port),
mm_kernel_device_get_name (self->priv->port)));
return G_SOURCE_REMOVE;
}
verinfo->len = len + 1;
/* Queuing the command takes ownership over it; save it for the second try */
verinfo2 = g_byte_array_sized_new (verinfo->len);
g_byte_array_append (verinfo2, verinfo->data, verinfo->len);
g_object_set_data_full (G_OBJECT (self), "cmd2", verinfo2, (GDestroyNotify) g_byte_array_unref);
mm_port_serial_qcdm_command (MM_PORT_SERIAL_QCDM (ctx->serial),
verinfo,
3,
NULL,
(GAsyncReadyCallback) serial_probe_qcdm_parse_response,
self);
g_byte_array_unref (verinfo);
port_probe_task_return_error (self,
g_error_new (MM_SERIAL_ERROR,
MM_SERIAL_ERROR_OPEN_FAILED,
"(%s/%s) Failed to create QCDM version info command",
mm_kernel_device_get_subsystem (self->priv->port),
mm_kernel_device_get_name (self->priv->port)));
return G_SOURCE_REMOVE;
}
verinfo->len = len + 1;
/* Queuing the command takes ownership over it; save it for the second try */
verinfo2 = g_byte_array_sized_new (verinfo->len);
g_byte_array_append (verinfo2, verinfo->data, verinfo->len);
g_object_set_data_full (G_OBJECT (self), "cmd2", verinfo2, (GDestroyNotify) g_byte_array_unref);
mm_port_serial_qcdm_command (MM_PORT_SERIAL_QCDM (ctx->serial),
verinfo,
3,
NULL,
(GAsyncReadyCallback) serial_probe_qcdm_parse_response,
self);
g_byte_array_unref (verinfo);
return G_SOURCE_REMOVE;
}
/***************************************************************/
@@ -1428,6 +1443,7 @@ mm_port_probe_run (MMPortProbe *self,
gboolean at_send_lf,
const MMPortProbeAtCommand *at_custom_probe,
const MMAsyncMethod *at_custom_init,
gboolean qcdm_required,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data)
@@ -1453,6 +1469,7 @@ mm_port_probe_run (MMPortProbe *self,
ctx->at_custom_probe = at_custom_probe;
ctx->at_custom_init = at_custom_init ? (MMPortProbeAtCustomInit)at_custom_init->async : NULL;
ctx->at_custom_init_finish = at_custom_init ? (MMPortProbeAtCustomInitFinish)at_custom_init->finish : NULL;
ctx->qcdm_required = qcdm_required;
ctx->cancellable = cancellable ? g_object_ref (cancellable) : NULL;
/* The context will be owned by the task */

1
src/mm-port-probe.h
View File

@@ -117,6 +117,7 @@ void mm_port_probe_run (MMPortProbe *self,
gboolean at_send_lf,
const MMPortProbeAtCommand *at_custom_probe,
const MMAsyncMethod *at_custom_init,
gboolean qcdm_required,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data);