diff options
author | 2016-05-18 13:18:31 +0300 | |
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committer | 2016-05-18 13:42:15 +0300 | |
commit | 437fd90c0250dee670290f9b714253671a990160 (patch) | |
tree | b871786c360704244a07411c69fb58da9ead4a06 /qemu/roms/ipxe/src/drivers/usb/usbhid.c | |
parent | 5bbd6fe9b8bab2a93e548c5a53b032d1939eec05 (diff) |
These changes are the raw update to qemu-2.6.
Collission happened in the following patches:
migration: do cleanup operation after completion(738df5b9)
Bug fix.(1750c932f86)
kvmclock: add a new function to update env->tsc.(b52baab2)
The code provided by the patches was already in the upstreamed
version.
Change-Id: I3cc11841a6a76ae20887b2e245710199e1ea7f9a
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'qemu/roms/ipxe/src/drivers/usb/usbhid.c')
-rw-r--r-- | qemu/roms/ipxe/src/drivers/usb/usbhid.c | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/qemu/roms/ipxe/src/drivers/usb/usbhid.c b/qemu/roms/ipxe/src/drivers/usb/usbhid.c new file mode 100644 index 000000000..c74535a05 --- /dev/null +++ b/qemu/roms/ipxe/src/drivers/usb/usbhid.c @@ -0,0 +1,151 @@ +/* + * Copyright (C) 2015 Michael Brown <mbrown@fensystems.co.uk>. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of the + * License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * You can also choose to distribute this program under the terms of + * the Unmodified Binary Distribution Licence (as given in the file + * COPYING.UBDL), provided that you have satisfied its requirements. + */ + +FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); + +#include <string.h> +#include <errno.h> +#include <ipxe/usb.h> +#include <ipxe/usbhid.h> + +/** @file + * + * USB human interface devices (HID) + * + */ + +/** + * Open USB human interface device + * + * @v hid USB human interface device + * @ret rc Return status code + */ +int usbhid_open ( struct usb_hid *hid ) { + int rc; + + /* Open interrupt IN endpoint */ + if ( ( rc = usb_endpoint_open ( &hid->in ) ) != 0 ) { + DBGC ( hid, "HID %s could not open interrupt IN: %s\n", + hid->func->name, strerror ( rc ) ); + goto err_open_in; + } + + /* Refill interrupt IN endpoint */ + if ( ( rc = usb_refill ( &hid->in ) ) != 0 ) { + DBGC ( hid, "HID %s could not refill interrupt IN: %s\n", + hid->func->name, strerror ( rc ) ); + goto err_refill_in; + } + + /* Open interrupt OUT endpoint, if applicable */ + if ( hid->out.usb && + ( ( rc = usb_endpoint_open ( &hid->out ) ) != 0 ) ) { + DBGC ( hid, "HID %s could not open interrupt OUT: %s\n", + hid->func->name, strerror ( rc ) ); + goto err_open_out; + } + + return 0; + + usb_endpoint_close ( &hid->out ); + err_open_out: + err_refill_in: + usb_endpoint_close ( &hid->in ); + err_open_in: + return rc; +} + +/** + * Close USB human interface device + * + * @v hid USB human interface device + */ +void usbhid_close ( struct usb_hid *hid ) { + + /* Close interrupt OUT endpoint, if applicable */ + if ( hid->out.usb ) + usb_endpoint_close ( &hid->out ); + + /* Close interrupt IN endpoint */ + usb_endpoint_close ( &hid->in ); +} + +/** + * Refill USB human interface device endpoints + * + * @v hid USB human interface device + * @ret rc Return status code + */ +int usbhid_refill ( struct usb_hid *hid ) { + int rc; + + /* Refill interrupt IN endpoint */ + if ( ( rc = usb_refill ( &hid->in ) ) != 0 ) + return rc; + + /* Refill interrupt OUT endpoint, if applicable */ + if ( hid->out.usb && ( ( rc = usb_refill ( &hid->out ) ) != 0 ) ) + return rc; + + return 0; +} + +/** + * Describe USB human interface device + * + * @v hid USB human interface device + * @v config Configuration descriptor + * @ret rc Return status code + */ +int usbhid_describe ( struct usb_hid *hid, + struct usb_configuration_descriptor *config ) { + struct usb_interface_descriptor *desc; + int rc; + + /* Locate interface descriptor */ + desc = usb_interface_descriptor ( config, hid->func->interface[0], 0 ); + if ( ! desc ) { + DBGC ( hid, "HID %s has no interface descriptor\n", + hid->func->name ); + return -EINVAL; + } + + /* Describe interrupt IN endpoint */ + if ( ( rc = usb_endpoint_described ( &hid->in, config, desc, + USB_INTERRUPT_IN, 0 ) ) != 0 ) { + DBGC ( hid, "HID %s could not describe interrupt IN: %s\n", + hid->func->name, strerror ( rc ) ); + return rc; + } + + /* Describe interrupt OUT endpoint, if applicable */ + if ( hid->out.usb && + ( ( rc = usb_endpoint_described ( &hid->out, config, desc, + USB_INTERRUPT_OUT, 0 ) ) != 0 )){ + DBGC ( hid, "HID %s could not describe interrupt OUT: %s\n", + hid->func->name, strerror ( rc ) ); + return rc; + } + + return 0; +} |