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trivial: synaptics: remove cascaded devices if the direct device falls off

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This commit is contained in:
Mario Limonciello 2017-01-31 11:02:54 -06:00
parent 7319259a84
commit ccee8cd86f
1 changed files with 31 additions and 6 deletions
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37
plugins/synapticsmst/fu-plugin-synapticsmst.c
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@ -146,33 +146,58 @@ fu_plugin_synaptics_scan_cascade (FuPlugin *plugin,
return TRUE;
}
static void
fu_plugin_synapticsmst_remove_cascaded (FuPlugin *plugin, const gchar *aux_node)
{
g_autofree gchar *dev_id_str = NULL;
FuDevice *fu_dev = NULL;
for (guint8 i=0; i < 8; i++) {
for (guint16 j=0; j < 256; j++) {
dev_id_str = g_strdup_printf ("MST-REMOTE-%s-%u-%u",
aux_node, i, j);
fu_dev = fu_plugin_cache_lookup (plugin, dev_id_str);
if (fu_dev != NULL) {
fu_plugin_device_remove (plugin, fu_dev);
fu_plugin_cache_remove (plugin, dev_id_str);
continue;
}
break;
}
}
}
static gboolean
fu_plugin_synapticsmst_enumerate (FuPlugin *plugin,
GError **error)
{
GDir *dir;
const gchar *aux_node = NULL;
g_autofree gchar *dev_id_str = NULL;
dir = g_dir_open (SYSFS_DRM_DP_AUX, 0, NULL);
do {
g_autoptr(GError) error_local = NULL;
g_autoptr(SynapticsMSTDevice) device = NULL;
g_autoptr(FuDevice) dev = NULL;
FuDevice *fu_dev = NULL;
aux_node = g_dir_read_name (dir);
if (aux_node == NULL)
break;
dev = fu_plugin_cache_lookup (plugin, aux_node);
dev_id_str = g_strdup_printf ("MST-DIRECT-%s-0-0", aux_node);
fu_dev = fu_plugin_cache_lookup (plugin, dev_id_str);
/* If we open succesfully a device exists here */
device = synapticsmst_device_new (SYNAPTICSMST_DEVICE_KIND_DIRECT, aux_node, 0, 0);
if (!synapticsmst_device_open (device, NULL)) {
/* No device exists here, but was there - remove from DB */
if (dev != NULL) {
if (fu_dev != NULL) {
g_debug ("removing device at %s", aux_node);
fu_plugin_device_remove (plugin, dev);
fu_plugin_cache_remove (plugin, aux_node);
fu_plugin_device_remove (plugin, fu_dev);
fu_plugin_cache_remove (plugin, dev_id_str);
fu_plugin_synapticsmst_remove_cascaded (plugin,
aux_node);
} else {
/* Nothing to see here - move on*/
g_debug ("no device found on %s", aux_node);
@ -181,7 +206,7 @@ fu_plugin_synapticsmst_enumerate (FuPlugin *plugin,
}
/* node already exists */
if (dev != NULL)
if (fu_dev != NULL)
continue;
/* Add direct devices */