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trivial: synapticsmst: only enable plugin if kernel support is present

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This commit is contained in:
Mario Limonciello 2017-01-16 15:37:11 -06:00
parent 8eaf6dbcd6
commit f53e4a2d4b
3 changed files with 40 additions and 23 deletions
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42
plugins/synapticsmst/fu-plugin-synapticsmst.c
View File

@ -21,6 +21,7 @@
*/
#include "config.h"
#include <smbios_c/smbios.h>
#include "synapticsmst-device.h"
#include "synapticsmst-common.h"
#include "fu-plugin-dell.h"
@ -29,6 +30,40 @@
#define SYNAPTICS_FLASH_MODE_DELAY 2
static gboolean
synapticsmst_common_check_supported_system (GError **error)
{
gint i;
guint8 dell_supported = 0;
gboolean kernel_support = FALSE;
struct smbios_struct *de_table;
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) {
g_set_error (error,
G_IO_ERROR,
G_IO_ERROR_INVALID_DATA,
"MST firmware updating not supported by OEM (%x)",
dell_supported);
return FALSE;
}
for (i=0; i<MAX_DP_AUX_NODES; i++) {
if (kernel_support)
break;
kernel_support = g_file_test (synapticsmst_device_aux_node_to_string (i),
G_FILE_TEST_EXISTS);
}
if (!kernel_support) {
g_set_error (error,
G_IO_ERROR,
G_IO_ERROR_INVALID_DATA,
"MST firmware updating not supported, missing kernel support.");
return FALSE;
}
return TRUE;
}
static gboolean
fu_synaptics_add_device (FuPlugin *plugin,
SynapticsMSTDevice *device,
@ -86,9 +121,6 @@ fu_plugin_synapticsmst_enumerate (FuPlugin *plugin,
g_autoptr(SynapticsMSTDevice) device = NULL;
g_autoptr(FuDevice) dev = NULL;
if (!synapticsmst_common_check_supported_system (error))
return FALSE;
for (i=0; i<MAX_DP_AUX_NODES; i++) {
aux_node = synapticsmst_device_aux_node_to_string (i);
dev = fu_plugin_cache_lookup (plugin, aux_node);
@ -251,6 +283,10 @@ fu_plugin_startup (FuPlugin *plugin, GError **error)
gboolean
fu_plugin_coldplug (FuPlugin *plugin, GError **error)
{
/* verify that this is a supported system */
if (!synapticsmst_common_check_supported_system (error))
return FALSE;
/* look for host devices or already plugged in dock devices */
if (!fu_plugin_synapticsmst_enumerate (plugin, error))
g_debug ("SynapticsMST: Error enumerating.");

19
plugins/synapticsmst/synapticsmst-common.c
View File

@ -28,9 +28,9 @@
#include <time.h>
#include <stdlib.h>
#include <unistd.h>
#include <smbios_c/smbios.h>
#include <glib-object.h>
#include "synapticsmst-common.h"
#include "synapticsmst-device.h"
#define UNIT_SIZE 32
#define MAX_WAIT_TIME 3 /* unit : second */
@ -399,20 +399,3 @@ synapticsmst_common_disable_remote_control (void)
synapticsmst_common_config_connection (tmp_layer, g_RAD);
return rc;
}
gboolean synapticsmst_common_check_supported_system (GError **error)
{
guint8 dell_supported = 0;
struct smbios_struct *de_table;
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) {
g_set_error (error,
G_IO_ERROR,
G_IO_ERROR_INVALID_DATA,
"SynapticsMST: firmware updating not supported. (%x)",
dell_supported);
return FALSE;
}
return TRUE;
}

2
plugins/synapticsmst/synapticsmst-common.h
View File

@ -107,6 +107,4 @@ guchar synapticsmst_common_enable_remote_control (void);
guchar synapticsmst_common_disable_remote_control (void);
gboolean synapticsmst_common_check_supported_system (GError **error);
#endif /* __SYNAPTICSMST_COMMON_H */