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1263446b23
The setup() is the counterpart to probe(), the difference being the former needs the device open and the latter does not. This allows objects that derive from FuDevice, and use FuDeviceLocker to use open() and close() without worrying about the performance implications of probing the hardware, i.e. open() now simply opens a file or device.
138 lines
3.4 KiB
C
138 lines
3.4 KiB
C
/*
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* Copyright (C) 2016-2017 Richard Hughes <richard@hughsie.com>
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*
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* SPDX-License-Identifier: LGPL-2.1+
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*/
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#include "config.h"
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#include <string.h>
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#include "fu-steelseries-device.h"
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#define STEELSERIES_TRANSACTION_TIMEOUT 1000 /* ms */
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G_DEFINE_TYPE (FuSteelseriesDevice, fu_steelseries_device, FU_TYPE_USB_DEVICE)
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static gboolean
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fu_steelseries_device_open (FuUsbDevice *device, GError **error)
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{
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GUsbDevice *usb_device = fu_usb_device_get_dev (device);
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const guint8 iface_idx = 0x00;
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/* get firmware version on SteelSeries Rival 100 */
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if (!g_usb_device_claim_interface (usb_device, iface_idx,
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G_USB_DEVICE_CLAIM_INTERFACE_BIND_KERNEL_DRIVER,
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error)) {
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g_prefix_error (error, "failed to claim interface: ");
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return FALSE;
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}
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/* success */
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return TRUE;
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}
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static gboolean
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fu_steelseries_device_setup (FuDevice *device, GError **error)
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{
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GUsbDevice *usb_device = fu_usb_device_get_dev (FU_USB_DEVICE (device));
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gboolean ret;
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gsize actual_len = 0;
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guint8 data[32];
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g_autofree gchar *version = NULL;
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memset (data, 0x00, sizeof(data));
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data[0] = 0x16;
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ret = g_usb_device_control_transfer (usb_device,
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G_USB_DEVICE_DIRECTION_HOST_TO_DEVICE,
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G_USB_DEVICE_REQUEST_TYPE_CLASS,
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G_USB_DEVICE_RECIPIENT_INTERFACE,
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0x09,
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0x0200,
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0x0000,
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data,
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sizeof(data),
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&actual_len,
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STEELSERIES_TRANSACTION_TIMEOUT,
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NULL,
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error);
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if (!ret) {
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g_prefix_error (error, "failed to do control transfer: ");
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return FALSE;
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}
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if (actual_len != 32) {
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g_set_error (error,
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G_IO_ERROR,
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G_IO_ERROR_INVALID_DATA,
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"only wrote %" G_GSIZE_FORMAT "bytes", actual_len);
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return FALSE;
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}
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ret = g_usb_device_interrupt_transfer (usb_device,
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0x81, /* EP1 IN */
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data,
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sizeof(data),
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&actual_len,
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STEELSERIES_TRANSACTION_TIMEOUT,
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NULL,
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error);
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if (!ret) {
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g_prefix_error (error, "failed to do EP1 transfer: ");
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return FALSE;
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}
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if (actual_len != 32) {
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g_set_error (error,
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G_IO_ERROR,
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G_IO_ERROR_INVALID_DATA,
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"only read %" G_GSIZE_FORMAT "bytes", actual_len);
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return FALSE;
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}
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version = g_strdup_printf ("%i.%i.%i", data[0], data[1], data[2]);
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fu_device_set_version (FU_DEVICE (device), version);
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/* success */
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return TRUE;
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}
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static gboolean
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fu_steelseries_device_close (FuUsbDevice *device, GError **error)
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{
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GUsbDevice *usb_device = fu_usb_device_get_dev (device);
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const guint8 iface_idx = 0x00;
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/* we're done here */
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if (!g_usb_device_release_interface (usb_device, iface_idx,
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G_USB_DEVICE_CLAIM_INTERFACE_BIND_KERNEL_DRIVER,
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error)) {
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g_prefix_error (error, "failed to release interface: ");
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return FALSE;
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}
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/* success */
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return TRUE;
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}
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static void
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fu_steelseries_device_init (FuSteelseriesDevice *device)
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{
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}
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static void
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fu_steelseries_device_class_init (FuSteelseriesDeviceClass *klass)
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{
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FuDeviceClass *klass_device = FU_DEVICE_CLASS (klass);
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FuUsbDeviceClass *klass_usb_device = FU_USB_DEVICE_CLASS (klass);
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klass_device->setup = fu_steelseries_device_setup;
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klass_usb_device->open = fu_steelseries_device_open;
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klass_usb_device->close = fu_steelseries_device_close;
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}
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FuSteelseriesDevice *
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fu_steelseries_device_new (GUsbDevice *usb_device)
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{
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FuSteelseriesDevice *device = NULL;
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device = g_object_new (FU_TYPE_STEELSERIES_DEVICE,
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"usb-device", usb_device,
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NULL);
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return device;
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}
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