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thunderbolt: Add special handling for safe mode on Dell systems (#84)

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* thunderbolt: Add special handling for safe mode on Dell systems

Dell systems are known to have the Model ID the same as the SystemID
that can be recovered from libsmbios.  If the thunderbolt controller
is in safe mode, identify with this ID to allow the controller to be
flashed with a good FW.
This commit is contained in:
Mario Limonciello 2017-01-23 11:10:31 -06:00 committed by Richard Hughes
parent 94e7f75ef3
commit d25200fc66
2 changed files with 28 additions and 0 deletions
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7
plugins/thunderbolt/Makefile.am
View File

@ -17,6 +17,13 @@ libfu_plugin_thunderbolt_la_LDFLAGS = -module -avoid-version
libfu_plugin_thunderbolt_la_CFLAGS = $(WARN_CFLAGS) \
-DG_LOG_DOMAIN=\"FuPluginThunderbolt\"
if HAVE_DELL
AM_CPPFLAGS += \
$(LIBSMBIOS_CFLAGS)
libfu_plugin_thunderbolt_la_LIBADD = \
$(LIBSMBIOS_LIBS)
endif
EXTRA_DIST = README.md
-include $(top_srcdir)/git.mk

21
plugins/thunderbolt/fu-plugin-thunderbolt.c
View File

@ -32,6 +32,11 @@
#define FU_PLUGIN_THUNDERBOLT_MAX_ID_LEN 255
#define FU_PLUGIN_THUNDERBOLT_DAEMON_DELAY 3000 /* ms */
#ifdef HAVE_DELL
#include <smbios_c/system_info.h>
#include <smbios_c/smbios.h>
#endif /* HAVE_DELL */
struct FuPluginData {
/* A handle on a list of libtbtfwu controller objects. These must
* eventually be freed.
@ -129,6 +134,10 @@ fu_plugin_thunderbolt_rescan (FuPlugin *plugin, GError **error)
g_autofree gchar *guid_id = NULL;
g_autofree gchar *version = NULL;
gint safe_mode = 0;
#ifdef HAVE_DELL
guint8 dell_supported;
struct smbios_struct *de_table;
#endif /* HAVE_DELL */
/* get the ID */
rc = tbt_fwu_Controller_getID (data->controllers[i],
@ -168,6 +177,18 @@ fu_plugin_thunderbolt_rescan (FuPlugin *plugin, GError **error)
"Please visit https://github.com/01org/tbtfwupd/wiki "
"for information on how to restore normal operation.",
info->id);
/* Dell systems are known to have the system ID as the model_id
when in safe mode, they can be flashed */
#ifdef HAVE_DELL
de_table = smbios_get_next_struct_by_type (0, 0xDE);
smbios_struct_get_data (de_table, &dell_supported, 0x00, sizeof(guint8));
if (dell_supported == 0xDE) {
info->vendor_id = 0x00d4;
info->model_id = sysinfo_get_dell_system_id ();
safe_mode = 0;
}
#endif /* HAVE_DELL */
} else {
/* get the vendor ID */
rc = tbt_fwu_Controller_getVendorID (data->controllers[i],