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From 185856133af4d723b719a4ad5395e32153deb98b Mon Sep 17 00:00:00 2001
From: Aleksander Morgado <aleksander@aleksander.es>
Date: Fri, 18 Oct 2019 11:37:17 +0200
Subject: [PATCH 1/3] qmi-device: support and detect smdpkt managed QMI control
ports
https://gitlab.freedesktop.org/mobile-broadband/libqmi/issues/20
https://gitlab.freedesktop.org/mobile-broadband/libqmi/-/merge_requests/72
https://gitlab.freedesktop.org/mobile-broadband/libqmi/-/merge_requests/101
(cherry picked from commit e3851c8d456f32553324beaab1b7c48bbffa2892)
(cherry picked from commit 6fc07ae25a7c3e2375f02f7ab65c92073303e8d0)
---
.../libqmi-glib/libqmi-glib-common.sections | 2 +
src/libqmi-glib/qmi-device.c | 68 ++++++++---------
src/libqmi-glib/qmi-utils.c | 73 ++++++++++++++++---
src/libqmi-glib/qmi-utils.h | 11 ++-
4 files changed, 107 insertions(+), 47 deletions(-)
diff --git a/docs/reference/libqmi-glib/libqmi-glib-common.sections b/docs/reference/libqmi-glib/libqmi-glib-common.sections
index eb6cbeded2ba..75a13653416a 100644
--- a/docs/reference/libqmi-glib/libqmi-glib-common.sections
+++ b/docs/reference/libqmi-glib/libqmi-glib-common.sections
@@ -1403,6 +1403,8 @@ QmiEndian
<SUBSECTION Traces>
qmi_utils_get_traces_enabled
qmi_utils_set_traces_enabled
+<SUBSECTION Private>
+__QmiTransportType
</SECTION>
<SECTION>
diff --git a/src/libqmi-glib/qmi-device.c b/src/libqmi-glib/qmi-device.c
index 1e7d8cd1a9d2..7af4f4cd43b6 100644
--- a/src/libqmi-glib/qmi-device.c
+++ b/src/libqmi-glib/qmi-device.c
@@ -1942,68 +1942,68 @@ device_create_endpoint (QmiDevice *self,
}
static gboolean
-device_setup_open_flags_by_driver (QmiDevice *self,
- DeviceOpenContext *ctx,
- GError **error)
-{
- gchar *driver;
- GError *inner_error = NULL;
-
- driver = __qmi_utils_get_driver (qmi_file_get_path (self->priv->file), &inner_error);
- if (driver)
- g_debug ("[%s] loaded driver of cdc-wdm port: %s", qmi_file_get_path_display (self->priv->file), driver);
- else if (!self->priv->no_file_check)
- g_warning ("[%s] couldn't load driver of cdc-wdm port: %s", qmi_file_get_path_display (self->priv->file), inner_error->message);
+device_setup_open_flags_by_transport (QmiDevice *self,
+ DeviceOpenContext *ctx,
+ GError **error)
+{
+ __QmiTransportType transport;
+ GError *inner_error = NULL;
+
+ transport = __qmi_utils_get_transport_type (qmi_file_get_path (self->priv->file), &inner_error);
+ if ((transport == __QMI_TRANSPORT_TYPE_UNKNOWN) && !self->priv->no_file_check)
+ g_warning ("[%s] couldn't detect transport type of port: %s", qmi_file_get_path_display (self->priv->file), inner_error->message);
g_clear_error (&inner_error);
#if defined MBIM_QMUX_ENABLED
/* Auto mode requested? */
if (ctx->flags & QMI_DEVICE_OPEN_FLAGS_AUTO) {
- if (!g_strcmp0 (driver, "cdc_mbim")) {
+ switch (transport) {
+ case __QMI_TRANSPORT_TYPE_MBIM:
g_debug ("[%s] automatically selecting MBIM mode", qmi_file_get_path_display (self->priv->file));
ctx->flags |= QMI_DEVICE_OPEN_FLAGS_MBIM;
- goto out;
- }
- if (!g_strcmp0 (driver, "qmi_wwan")) {
+ break;
+ case __QMI_TRANSPORT_TYPE_QMUX:
g_debug ("[%s] automatically selecting QMI mode", qmi_file_get_path_display (self->priv->file));
ctx->flags &= ~QMI_DEVICE_OPEN_FLAGS_MBIM;
- goto out;
+ break;
+ case __QMI_TRANSPORT_TYPE_UNKNOWN:
+ g_set_error (&inner_error, QMI_CORE_ERROR, QMI_CORE_ERROR_FAILED,
+ "Cannot automatically select QMI/MBIM mode");
+ break;
}
- g_set_error (&inner_error,
- QMI_CORE_ERROR,
- QMI_CORE_ERROR_FAILED,
- "Cannot automatically select QMI/MBIM mode: driver %s",
- driver ? driver : "unknown");
goto out;
}
/* MBIM mode requested? */
if (ctx->flags & QMI_DEVICE_OPEN_FLAGS_MBIM) {
- if (g_strcmp0 (driver, "cdc_mbim") && !self->priv->no_file_check)
- g_warning ("[%s] requested MBIM mode but unexpected driver found: %s", qmi_file_get_path_display (self->priv->file), driver);
+ if ((transport != __QMI_TRANSPORT_TYPE_MBIM) && !self->priv->no_file_check)
+ g_warning ("[%s] requested MBIM mode but unexpected transport type found", qmi_file_get_path_display (self->priv->file));
goto out;
}
#else
- if (ctx->flags & QMI_DEVICE_OPEN_FLAGS_AUTO)
+ /* Auto mode requested? */
+ if (ctx->flags & QMI_DEVICE_OPEN_FLAGS_AUTO) {
g_warning ("[%s] requested auto mode but no MBIM QMUX support available", qmi_file_get_path_display (self->priv->file));
- if (ctx->flags & QMI_DEVICE_OPEN_FLAGS_MBIM)
+ goto out;
+ }
+
+ /* MBIM mode requested? */
+ if (ctx->flags & QMI_DEVICE_OPEN_FLAGS_MBIM) {
g_warning ("[%s] requested MBIM mode but no MBIM QMUX support available", qmi_file_get_path_display (self->priv->file));
+ goto out;
+ }
#endif /* MBIM_QMUX_ENABLED */
/* QMI mode requested? */
- if (g_strcmp0 (driver, "qmi_wwan") && !self->priv->no_file_check)
- g_warning ("[%s] requested QMI mode but unexpected driver found: %s",
- qmi_file_get_path_display (self->priv->file), driver ? driver : "unknown");
+ if ((transport != __QMI_TRANSPORT_TYPE_QMUX) && !self->priv->no_file_check)
+ g_warning ("[%s] requested QMI mode but unexpected transport type found",
+ qmi_file_get_path_display (self->priv->file));
-#if defined MBIM_QMUX_ENABLED
out:
-#endif
-
- g_free (driver);
if (inner_error) {
g_propagate_error (error, inner_error);
@@ -2029,7 +2029,7 @@ device_open_step (GTask *task)
/* Fall through */
case DEVICE_OPEN_CONTEXT_STEP_DRIVER:
- if (!device_setup_open_flags_by_driver (self, ctx, &error)) {
+ if (!device_setup_open_flags_by_transport (self, ctx, &error)) {
g_task_return_error (task, error);
g_object_unref (task);
return;
diff --git a/src/libqmi-glib/qmi-utils.c b/src/libqmi-glib/qmi-utils.c
index df2420cf5c1f..084dba51d011 100644
--- a/src/libqmi-glib/qmi-utils.c
+++ b/src/libqmi-glib/qmi-utils.c
@@ -120,18 +120,13 @@ __qmi_user_allowed (uid_t uid,
/*****************************************************************************/
-gchar *
-__qmi_utils_get_driver (const gchar *cdc_wdm_path,
- GError **error)
+static gchar *
+utils_get_driver (const gchar *device_basename,
+ GError **error)
{
static const gchar *subsystems[] = { "usbmisc", "usb" };
- guint i;
- gchar *device_basename;
- gchar *driver = NULL;
-
- device_basename = __qmi_utils_get_devname (cdc_wdm_path, error);
- if (!device_basename)
- return NULL;
+ guint i;
+ gchar *driver = NULL;
for (i = 0; !driver && i < G_N_ELEMENTS (subsystems); i++) {
gchar *tmp;
@@ -153,9 +148,65 @@ __qmi_utils_get_driver (const gchar *cdc_wdm_path,
g_free (path);
}
+ if (!driver)
+ g_set_error (error, QMI_CORE_ERROR, QMI_CORE_ERROR_FAILED,
+ "couldn't detect device driver");
+ return driver;
+}
+
+__QmiTransportType
+__qmi_utils_get_transport_type (const gchar *path,
+ GError **error)
+{
+ __QmiTransportType transport = __QMI_TRANSPORT_TYPE_UNKNOWN;
+ gchar *device_basename = NULL;
+ gchar *driver = NULL;
+ gchar *sysfs_path = NULL;
+ GError *inner_error = NULL;
+
+ device_basename = __qmi_utils_get_devname (path, &inner_error);
+ if (!device_basename)
+ goto out;
+
+ driver = utils_get_driver (device_basename, &inner_error);
+
+ /* On Android systems we get access to the QMI control port through
+ * virtual smdcntl devices in the smdpkt subsystem. */
+ if (!driver) {
+ path = g_strdup_printf ("/sys/devices/virtual/smdpkt/%s", device_basename);
+ if (g_file_test (path, G_FILE_TEST_EXISTS)) {
+ g_clear_error (&inner_error);
+ transport = __QMI_TRANSPORT_TYPE_QMUX;
+ }
+ goto out;
+ }
+
+ if (!g_strcmp0 (driver, "cdc_mbim")) {
+ transport = __QMI_TRANSPORT_TYPE_MBIM;
+ goto out;
+ }
+
+ if (!g_strcmp0 (driver, "qmi_wwan")) {
+ transport = __QMI_TRANSPORT_TYPE_QMUX;
+ goto out;
+ }
+
+ g_set_error (&inner_error, QMI_CORE_ERROR, QMI_CORE_ERROR_FAILED,
+ "unexpected driver detected: %s", driver);
+
+ out:
+
g_free (device_basename);
+ g_free (driver);
+ g_free (sysfs_path);
- return driver;
+ if (inner_error) {
+ g_assert (transport == __QMI_TRANSPORT_TYPE_UNKNOWN);
+ g_propagate_error (error, inner_error);
+ } else
+ g_assert (transport != __QMI_TRANSPORT_TYPE_UNKNOWN);
+
+ return transport;
}
gchar *
diff --git a/src/libqmi-glib/qmi-utils.h b/src/libqmi-glib/qmi-utils.h
index b83bf23c184d..8a1c712dfad0 100644
--- a/src/libqmi-glib/qmi-utils.h
+++ b/src/libqmi-glib/qmi-utils.h
@@ -84,9 +84,16 @@ gchar *__qmi_utils_str_hex (gconstpointer mem,
G_GNUC_INTERNAL
gboolean __qmi_user_allowed (uid_t uid,
GError **error);
+
+typedef enum {
+ __QMI_TRANSPORT_TYPE_UNKNOWN,
+ __QMI_TRANSPORT_TYPE_QMUX,
+ __QMI_TRANSPORT_TYPE_MBIM,
+} __QmiTransportType;
+
G_GNUC_INTERNAL
-gchar *__qmi_utils_get_driver (const gchar *cdc_wdm_path,
- GError **error);
+__QmiTransportType __qmi_utils_get_transport_type (const gchar *path,
+ GError **error);
G_GNUC_INTERNAL
gchar *__qmi_utils_get_devname (const gchar *cdc_wdm_path,
--
2.31.1
From 00502d0353d7e056b3348514033001e0a71bbd83 Mon Sep 17 00:00:00 2001
From: Aleksander Morgado <aleksander@aleksander.es>
Date: Fri, 18 Oct 2019 11:41:49 +0200
Subject: [PATCH 2/3] qmi-device: when MBIM/QMUX support not enabled ignore
AUTO warnings
https://gitlab.freedesktop.org/mobile-broadband/libqmi/-/issues/20
https://gitlab.freedesktop.org/mobile-broadband/libqmi/-/merge_requests/72
(cherry picked from commit 99e320c76dc41bc4b4cb0a5b55c06a825cd9224c)
---
src/libqmi-glib/qmi-device.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/src/libqmi-glib/qmi-device.c b/src/libqmi-glib/qmi-device.c
index 7af4f4cd43b6..7e93fad079a4 100644
--- a/src/libqmi-glib/qmi-device.c
+++ b/src/libqmi-glib/qmi-device.c
@@ -1984,18 +1984,14 @@ device_setup_open_flags_by_transport (QmiDevice *self,
#else
- /* Auto mode requested? */
- if (ctx->flags & QMI_DEVICE_OPEN_FLAGS_AUTO) {
- g_warning ("[%s] requested auto mode but no MBIM QMUX support available", qmi_file_get_path_display (self->priv->file));
- goto out;
- }
-
/* MBIM mode requested? */
if (ctx->flags & QMI_DEVICE_OPEN_FLAGS_MBIM) {
g_warning ("[%s] requested MBIM mode but no MBIM QMUX support available", qmi_file_get_path_display (self->priv->file));
goto out;
}
+ /* Treat AUTO as QMI mode, without warnings */
+
#endif /* MBIM_QMUX_ENABLED */
/* QMI mode requested? */
--
2.31.1
From dc013e2e3fee3583f93961900b45d6b2fc59871c Mon Sep 17 00:00:00 2001
From: Luca Weiss <luca@z3ntu.xyz>
Date: Mon, 21 Oct 2019 21:05:28 +0200
Subject: [PATCH 3/3] qmi-device: detect rpmsg control ports
and adjust the path to check for smdpkt nodes
https://gitlab.freedesktop.org/mobile-broadband/libqmi/issues/20
https://gitlab.freedesktop.org/mobile-broadband/libqmi/-/merge_requests/73
https://gitlab.freedesktop.org/mobile-broadband/libqmi/-/merge_requests/101
(cherry picked from commit c2ceb25d6e95e37e9f3394937fd9b9b524207224)
(cherry picked from commit 816c36f9a1d24ac1b2a4c46d04cb2ca47d9c0a4e)
---
src/libqmi-glib/qmi-utils.c | 16 ++++++++++++----
1 file changed, 12 insertions(+), 4 deletions(-)
diff --git a/src/libqmi-glib/qmi-utils.c b/src/libqmi-glib/qmi-utils.c
index 084dba51d011..cb29c91c64b4 100644
--- a/src/libqmi-glib/qmi-utils.c
+++ b/src/libqmi-glib/qmi-utils.c
@@ -170,11 +170,19 @@ __qmi_utils_get_transport_type (const gchar *path,
driver = utils_get_driver (device_basename, &inner_error);
- /* On Android systems we get access to the QMI control port through
- * virtual smdcntl devices in the smdpkt subsystem. */
if (!driver) {
- path = g_strdup_printf ("/sys/devices/virtual/smdpkt/%s", device_basename);
- if (g_file_test (path, G_FILE_TEST_EXISTS)) {
+ /* On Android systems we get access to the QMI control port through
+ * virtual smdcntl devices in the smdpkt subsystem. */
+ sysfs_path = g_strdup_printf ("/sys/class/smdpkt/%s", device_basename);
+ if (g_file_test (sysfs_path, G_FILE_TEST_EXISTS)) {
+ g_clear_error (&inner_error);
+ transport = __QMI_TRANSPORT_TYPE_QMUX;
+ goto out;
+ }
+ g_free (sysfs_path);
+ /* On mainline kernels this control port is provided by rpmsg */
+ sysfs_path = g_strdup_printf ("/sys/class/rpmsg/%s", device_basename);
+ if (g_file_test (sysfs_path, G_FILE_TEST_EXISTS)) {
g_clear_error (&inner_error);
transport = __QMI_TRANSPORT_TYPE_QMUX;
}
--
2.31.1
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