depau/libfprint
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity

synaptics: retry get version command once when receiving non-success

Browse source 
status
This commit is contained in:
Vincent Huang 2020-08-21 17:42:00 +08:00
parent 8b64312f4b
commit a4f7293f32
1 changed files with 36 additions and 27 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

63
libfprint/drivers/synaptics/synaptics.c
View file

@ -898,6 +898,7 @@ dev_probe (FpDevice *device)
const guint8 *data;
gboolean read_ok = TRUE;
g_autofree gchar *serial = NULL;
gboolean retry = TRUE;
G_DEBUG_HERE ();
@ -915,35 +916,43 @@ dev_probe (FpDevice *device)
if (!g_usb_device_claim_interface (usb_dev, 0, 0, &error))
goto err_close;
/* TODO: Do not do this synchronous. */
transfer = fpi_usb_transfer_new (device);
fpi_usb_transfer_fill_bulk (transfer, USB_EP_REQUEST, SENSOR_FW_CMD_HEADER_LEN);
transfer->short_is_error = TRUE;
transfer->buffer[0] = SENSOR_CMD_GET_VERSION;
if (!fpi_usb_transfer_submit_sync (transfer, 1000, &error))
goto err_close;
g_clear_pointer (&transfer, fpi_usb_transfer_unref);
transfer = fpi_usb_transfer_new (device);
fpi_usb_transfer_fill_bulk (transfer, USB_EP_REPLY, 40);
if (!fpi_usb_transfer_submit_sync (transfer, 1000, &error))
goto err_close;
fpi_byte_reader_init (&reader, transfer->buffer, transfer->actual_length);
if (!fpi_byte_reader_get_uint16_le (&reader, &status))
while(1)
{
g_warning ("Transfer in response to version query was too short");
error = fpi_device_error_new (FP_DEVICE_ERROR_PROTO);
goto err_close;
}
if (status != 0)
{
g_warning ("Device responded with error: %d", status);
error = fpi_device_error_new (FP_DEVICE_ERROR_PROTO);
goto err_close;
}
/* TODO: Do not do this synchronous. */
transfer = fpi_usb_transfer_new (device);
fpi_usb_transfer_fill_bulk (transfer, USB_EP_REQUEST, SENSOR_FW_CMD_HEADER_LEN);
transfer->short_is_error = TRUE;
transfer->buffer[0] = SENSOR_CMD_GET_VERSION;
if (!fpi_usb_transfer_submit_sync (transfer, 1000, &error))
goto err_close;
g_clear_pointer (&transfer, fpi_usb_transfer_unref);
transfer = fpi_usb_transfer_new (device);
fpi_usb_transfer_fill_bulk (transfer, USB_EP_REPLY, 40);
if (!fpi_usb_transfer_submit_sync (transfer, 1000, &error))
goto err_close;
fpi_byte_reader_init (&reader, transfer->buffer, transfer->actual_length);
if (!fpi_byte_reader_get_uint16_le (&reader, &status))
{
g_warning ("Transfer in response to version query was too short");
error = fpi_device_error_new (FP_DEVICE_ERROR_PROTO);
goto err_close;
}
if (status != 0)
{
g_warning ("Device responded with error: %d retry: %d", status, retry);
if(retry)
{
retry = FALSE;
continue;
}
error = fpi_device_error_new (FP_DEVICE_ERROR_PROTO);
goto err_close;
}
break;
}
read_ok &= fpi_byte_reader_get_uint32_le (&reader, &self->mis_version.build_time);
read_ok &= fpi_byte_reader_get_uint32_le (&reader, &self->mis_version.build_num);
read_ok &= fpi_byte_reader_get_uint8 (&reader, &self->mis_version.version_major);