fwupd/plugins/steelseries/fu-steelseries-device.c
2021-08-24 11:18:40 -05:00

140 lines
3.5 KiB
C

/*
* Copyright (C) 2016 Richard Hughes <richard@hughsie.com>
*
* SPDX-License-Identifier: LGPL-2.1+
*/
#include "config.h"
#include <string.h>
#include "fu-steelseries-device.h"
#define STEELSERIES_TRANSACTION_TIMEOUT 1000 /* ms */
G_DEFINE_TYPE(FuSteelseriesDevice, fu_steelseries_device, FU_TYPE_USB_DEVICE)
static gboolean
fu_steelseries_device_open(FuDevice *device, GError **error)
{
GUsbDevice *usb_device = fu_usb_device_get_dev(FU_USB_DEVICE(device));
const guint8 iface_idx = 0x00;
/* FuUsbDevice->open */
if (!FU_DEVICE_CLASS(fu_steelseries_device_parent_class)->open(device, error))
return FALSE;
/* get firmware version on SteelSeries Rival 100 */
if (!g_usb_device_claim_interface(usb_device,
iface_idx,
G_USB_DEVICE_CLAIM_INTERFACE_BIND_KERNEL_DRIVER,
error)) {
g_prefix_error(error, "failed to claim interface: ");
return FALSE;
}
/* success */
return TRUE;
}
static gboolean
fu_steelseries_device_setup(FuDevice *device, GError **error)
{
GUsbDevice *usb_device = fu_usb_device_get_dev(FU_USB_DEVICE(device));
gboolean ret;
gsize actual_len = 0;
guint8 data[32];
g_autofree gchar *version = NULL;
/* FuUsbDevice->setup */
if (!FU_DEVICE_CLASS(fu_steelseries_device_parent_class)->setup(device, error))
return FALSE;
memset(data, 0x00, sizeof(data));
data[0] = 0x16;
ret = g_usb_device_control_transfer(usb_device,
G_USB_DEVICE_DIRECTION_HOST_TO_DEVICE,
G_USB_DEVICE_REQUEST_TYPE_CLASS,
G_USB_DEVICE_RECIPIENT_INTERFACE,
0x09,
0x0200,
0x0000,
data,
sizeof(data),
&actual_len,
STEELSERIES_TRANSACTION_TIMEOUT,
NULL,
error);
if (!ret) {
g_prefix_error(error, "failed to do control transfer: ");
return FALSE;
}
if (actual_len != 32) {
g_set_error(error,
G_IO_ERROR,
G_IO_ERROR_INVALID_DATA,
"only wrote %" G_GSIZE_FORMAT "bytes",
actual_len);
return FALSE;
}
ret = g_usb_device_interrupt_transfer(usb_device,
0x81, /* EP1 IN */
data,
sizeof(data),
&actual_len,
STEELSERIES_TRANSACTION_TIMEOUT,
NULL,
error);
if (!ret) {
g_prefix_error(error, "failed to do EP1 transfer: ");
return FALSE;
}
if (actual_len != 32) {
g_set_error(error,
G_IO_ERROR,
G_IO_ERROR_INVALID_DATA,
"only read %" G_GSIZE_FORMAT "bytes",
actual_len);
return FALSE;
}
version = g_strdup_printf("%i.%i.%i", data[0], data[1], data[2]);
fu_device_set_version(FU_DEVICE(device), version);
/* success */
return TRUE;
}
static gboolean
fu_steelseries_device_close(FuDevice *device, GError **error)
{
GUsbDevice *usb_device = fu_usb_device_get_dev(FU_USB_DEVICE(device));
const guint8 iface_idx = 0x00;
/* we're done here */
if (!g_usb_device_release_interface(usb_device,
iface_idx,
G_USB_DEVICE_CLAIM_INTERFACE_BIND_KERNEL_DRIVER,
error)) {
g_prefix_error(error, "failed to release interface: ");
return FALSE;
}
/* FuUsbDevice->close */
return FU_DEVICE_CLASS(fu_steelseries_device_parent_class)->close(device, error);
}
static void
fu_steelseries_device_init(FuSteelseriesDevice *device)
{
fu_device_set_version_format(FU_DEVICE(device), FWUPD_VERSION_FORMAT_TRIPLET);
}
static void
fu_steelseries_device_class_init(FuSteelseriesDeviceClass *klass)
{
FuDeviceClass *klass_device = FU_DEVICE_CLASS(klass);
klass_device->setup = fu_steelseries_device_setup;
klass_device->open = fu_steelseries_device_open;
klass_device->close = fu_steelseries_device_close;
}