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synaptics-mst: Add support for writing firmware

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This commit is contained in:
Richard Hughes 2021-03-10 22:26:18 +00:00 committed by Mario Limonciello
parent e1b4b143d5
commit 35a5962991
3 changed files with 28 additions and 0 deletions
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24
plugins/synaptics-mst/fu-synaptics-mst-firmware.c
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@ -52,6 +52,29 @@ fu_synaptics_mst_firmware_parse (FuFirmware *firmware,
return TRUE;
}
static GBytes *
fu_synaptics_mst_firmware_write (FuFirmware *firmware, GError **error)
{
g_autoptr(GByteArray) buf = g_byte_array_new ();
g_autoptr(GBytes) blob = NULL;
/* assumed header */
fu_byte_array_set_size (buf, ADDR_CUSTOMER_ID + sizeof(guint16));
if (!fu_common_write_uint16_safe (buf->data, buf->len, ADDR_CUSTOMER_ID,
fu_firmware_get_idx (firmware), G_BIG_ENDIAN,
error))
return NULL;
/* payload */
blob = fu_firmware_get_bytes (firmware, error);
if (blob == NULL)
return NULL;
fu_byte_array_append_bytes (buf, blob);
/* success */
return g_byte_array_free_to_bytes (g_steal_pointer (&buf));
}
static void
fu_synaptics_mst_firmware_init (FuSynapticsMstFirmware *self)
{
@ -63,6 +86,7 @@ fu_synaptics_mst_firmware_class_init (FuSynapticsMstFirmwareClass *klass)
FuFirmwareClass *klass_firmware = FU_FIRMWARE_CLASS (klass);
klass_firmware->parse = fu_synaptics_mst_firmware_parse;
klass_firmware->to_string = fu_synaptics_mst_firmware_to_string;
klass_firmware->write = fu_synaptics_mst_firmware_write;
}
FuFirmware *

BIN
src/fuzzing/firmware/synaptics-mst.dat
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4
src/fuzzing/synaptics-mst.builder.xml Normal file
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@ -0,0 +1,4 @@
<firmware gtype="FuSynapticsMstFirmware">
<idx>0x1234</idx>
<data>ZGF2ZQ==</data>
</firmware>