root / usb-redir.c @ e8a7dd29
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/*
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* USB redirector usb-guest
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*
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* Copyright (c) 2011 Red Hat, Inc.
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*
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* Red Hat Authors:
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* Hans de Goede <hdegoede@redhat.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "qemu-common.h" |
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#include "qemu-timer.h" |
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#include "monitor.h" |
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#include "sysemu.h" |
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#include <dirent.h> |
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#include <sys/ioctl.h> |
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#include <signal.h> |
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#include <usbredirparser.h> |
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#include "hw/usb.h" |
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#define MAX_ENDPOINTS 32 |
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#define EP2I(ep_address) (((ep_address & 0x80) >> 3) | (ep_address & 0x0f)) |
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#define I2EP(i) (((i & 0x10) << 3) | (i & 0x0f)) |
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|
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typedef struct AsyncURB AsyncURB; |
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typedef struct USBRedirDevice USBRedirDevice; |
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|
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/* Struct to hold buffered packets (iso or int input packets) */
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struct buf_packet {
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uint8_t *data; |
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int len;
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int status;
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QTAILQ_ENTRY(buf_packet)next; |
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}; |
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|
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struct endp_data {
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uint8_t type; |
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uint8_t interval; |
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uint8_t interface; /* bInterfaceNumber this ep belongs to */
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uint8_t iso_started; |
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uint8_t iso_error; /* For reporting iso errors to the HC */
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uint8_t interrupt_started; |
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uint8_t interrupt_error; |
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QTAILQ_HEAD(, buf_packet) bufpq; |
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int bufpq_target_size;
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}; |
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struct USBRedirDevice {
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USBDevice dev; |
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/* Properties */
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CharDriverState *cs; |
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uint8_t debug; |
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/* Data passed from chardev the fd_read cb to the usbredirparser read cb */
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const uint8_t *read_buf;
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int read_buf_size;
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/* For async handling of open/close */
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QEMUBH *open_close_bh; |
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/* To delay the usb attach in case of quick chardev close + open */
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QEMUTimer *attach_timer; |
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int64_t next_attach_time; |
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struct usbredirparser *parser;
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struct endp_data endpoint[MAX_ENDPOINTS];
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uint32_t packet_id; |
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QTAILQ_HEAD(, AsyncURB) asyncq; |
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}; |
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struct AsyncURB {
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USBRedirDevice *dev; |
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USBPacket *packet; |
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uint32_t packet_id; |
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int get;
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union {
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struct usb_redir_control_packet_header control_packet;
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struct usb_redir_bulk_packet_header bulk_packet;
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struct usb_redir_interrupt_packet_header interrupt_packet;
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}; |
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QTAILQ_ENTRY(AsyncURB)next; |
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}; |
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static void usbredir_device_connect(void *priv, |
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struct usb_redir_device_connect_header *device_connect);
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static void usbredir_device_disconnect(void *priv); |
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static void usbredir_interface_info(void *priv, |
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struct usb_redir_interface_info_header *interface_info);
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static void usbredir_ep_info(void *priv, |
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struct usb_redir_ep_info_header *ep_info);
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static void usbredir_configuration_status(void *priv, uint32_t id, |
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struct usb_redir_configuration_status_header *configuration_status);
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static void usbredir_alt_setting_status(void *priv, uint32_t id, |
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struct usb_redir_alt_setting_status_header *alt_setting_status);
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static void usbredir_iso_stream_status(void *priv, uint32_t id, |
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struct usb_redir_iso_stream_status_header *iso_stream_status);
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static void usbredir_interrupt_receiving_status(void *priv, uint32_t id, |
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struct usb_redir_interrupt_receiving_status_header
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*interrupt_receiving_status); |
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static void usbredir_bulk_streams_status(void *priv, uint32_t id, |
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struct usb_redir_bulk_streams_status_header *bulk_streams_status);
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static void usbredir_control_packet(void *priv, uint32_t id, |
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struct usb_redir_control_packet_header *control_packet,
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uint8_t *data, int data_len);
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static void usbredir_bulk_packet(void *priv, uint32_t id, |
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struct usb_redir_bulk_packet_header *bulk_packet,
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uint8_t *data, int data_len);
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static void usbredir_iso_packet(void *priv, uint32_t id, |
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struct usb_redir_iso_packet_header *iso_packet,
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uint8_t *data, int data_len);
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static void usbredir_interrupt_packet(void *priv, uint32_t id, |
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struct usb_redir_interrupt_packet_header *interrupt_header,
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uint8_t *data, int data_len);
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static int usbredir_handle_status(USBRedirDevice *dev, |
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int status, int actual_len); |
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#define VERSION "qemu usb-redir guest " QEMU_VERSION |
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/*
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* Logging stuff
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*/
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#define ERROR(...) \
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do { \
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if (dev->debug >= usbredirparser_error) { \
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error_report("usb-redir error: " __VA_ARGS__); \
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} \ |
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} while (0) |
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#define WARNING(...) \
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do { \
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if (dev->debug >= usbredirparser_warning) { \
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error_report("usb-redir warning: " __VA_ARGS__); \
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} \ |
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} while (0) |
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#define INFO(...) \
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do { \
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if (dev->debug >= usbredirparser_info) { \
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error_report("usb-redir: " __VA_ARGS__); \
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} \ |
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} while (0) |
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#define DPRINTF(...) \
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do { \
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if (dev->debug >= usbredirparser_debug) { \
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error_report("usb-redir: " __VA_ARGS__); \
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} \ |
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} while (0) |
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#define DPRINTF2(...) \
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do { \
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if (dev->debug >= usbredirparser_debug_data) { \
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error_report("usb-redir: " __VA_ARGS__); \
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} \ |
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} while (0) |
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static void usbredir_log(void *priv, int level, const char *msg) |
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{
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USBRedirDevice *dev = priv; |
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if (dev->debug < level) {
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return;
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} |
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error_report("%s", msg);
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} |
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static void usbredir_log_data(USBRedirDevice *dev, const char *desc, |
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const uint8_t *data, int len) |
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{
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int i, j, n;
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if (dev->debug < usbredirparser_debug_data) {
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return;
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} |
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for (i = 0; i < len; i += j) { |
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char buf[128]; |
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n = sprintf(buf, "%s", desc);
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for (j = 0; j < 8 && i + j < len; j++) { |
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n += sprintf(buf + n, " %02X", data[i + j]);
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} |
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error_report("%s", buf);
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} |
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} |
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/*
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* usbredirparser io functions
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*/
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static int usbredir_read(void *priv, uint8_t *data, int count) |
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{
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USBRedirDevice *dev = priv; |
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if (dev->read_buf_size < count) {
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count = dev->read_buf_size; |
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} |
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memcpy(data, dev->read_buf, count); |
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dev->read_buf_size -= count; |
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if (dev->read_buf_size) {
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dev->read_buf += count; |
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} else {
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dev->read_buf = NULL;
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} |
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return count;
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} |
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static int usbredir_write(void *priv, uint8_t *data, int count) |
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{
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USBRedirDevice *dev = priv; |
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if (!dev->cs->opened) {
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return 0; |
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} |
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return qemu_chr_fe_write(dev->cs, data, count);
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} |
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/*
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* Async and buffered packets helpers
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*/
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static AsyncURB *async_alloc(USBRedirDevice *dev, USBPacket *p)
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{
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AsyncURB *aurb = (AsyncURB *) g_malloc0(sizeof(AsyncURB));
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aurb->dev = dev; |
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aurb->packet = p; |
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aurb->packet_id = dev->packet_id; |
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QTAILQ_INSERT_TAIL(&dev->asyncq, aurb, next); |
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dev->packet_id++; |
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return aurb;
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} |
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static void async_free(USBRedirDevice *dev, AsyncURB *aurb) |
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{
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QTAILQ_REMOVE(&dev->asyncq, aurb, next); |
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g_free(aurb); |
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} |
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static AsyncURB *async_find(USBRedirDevice *dev, uint32_t packet_id)
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{
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AsyncURB *aurb; |
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QTAILQ_FOREACH(aurb, &dev->asyncq, next) {
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if (aurb->packet_id == packet_id) {
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return aurb;
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} |
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} |
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ERROR("could not find async urb for packet_id %u\n", packet_id);
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return NULL; |
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} |
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static void usbredir_cancel_packet(USBDevice *udev, USBPacket *p) |
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{
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USBRedirDevice *dev = DO_UPCAST(USBRedirDevice, dev, udev); |
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AsyncURB *aurb; |
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QTAILQ_FOREACH(aurb, &dev->asyncq, next) {
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if (p != aurb->packet) {
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continue;
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} |
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DPRINTF("async cancel id %u\n", aurb->packet_id);
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usbredirparser_send_cancel_data_packet(dev->parser, aurb->packet_id); |
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usbredirparser_do_write(dev->parser); |
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/* Mark it as dead */
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aurb->packet = NULL;
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break;
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} |
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} |
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static struct buf_packet *bufp_alloc(USBRedirDevice *dev, |
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uint8_t *data, int len, int status, uint8_t ep) |
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{
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struct buf_packet *bufp = g_malloc(sizeof(struct buf_packet)); |
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bufp->data = data; |
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bufp->len = len; |
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bufp->status = status; |
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QTAILQ_INSERT_TAIL(&dev->endpoint[EP2I(ep)].bufpq, bufp, next); |
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return bufp;
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} |
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static void bufp_free(USBRedirDevice *dev, struct buf_packet *bufp, |
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uint8_t ep) |
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{
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QTAILQ_REMOVE(&dev->endpoint[EP2I(ep)].bufpq, bufp, next); |
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free(bufp->data); |
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g_free(bufp); |
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} |
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static void usbredir_free_bufpq(USBRedirDevice *dev, uint8_t ep) |
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{
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struct buf_packet *buf, *buf_next;
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QTAILQ_FOREACH_SAFE(buf, &dev->endpoint[EP2I(ep)].bufpq, next, buf_next) {
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bufp_free(dev, buf, ep); |
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} |
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} |
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/*
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* USBDevice callbacks
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*/
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|
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static void usbredir_handle_reset(USBDevice *udev) |
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{
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USBRedirDevice *dev = DO_UPCAST(USBRedirDevice, dev, udev); |
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DPRINTF("reset device\n");
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usbredirparser_send_reset(dev->parser); |
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usbredirparser_do_write(dev->parser); |
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} |
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|
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static int usbredir_handle_iso_data(USBRedirDevice *dev, USBPacket *p, |
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uint8_t ep) |
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{
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int status, len;
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if (!dev->endpoint[EP2I(ep)].iso_started &&
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!dev->endpoint[EP2I(ep)].iso_error) {
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struct usb_redir_start_iso_stream_header start_iso = {
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.endpoint = ep, |
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}; |
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int pkts_per_sec;
|
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|
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if (dev->dev.speed == USB_SPEED_HIGH) {
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pkts_per_sec = 8000 / dev->endpoint[EP2I(ep)].interval;
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} else {
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pkts_per_sec = 1000 / dev->endpoint[EP2I(ep)].interval;
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} |
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/* Testing has shown that we need circa 60 ms buffer */
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dev->endpoint[EP2I(ep)].bufpq_target_size = (pkts_per_sec * 60) / 1000; |
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|
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/* Aim for approx 100 interrupts / second on the client to
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balance latency and interrupt load */
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start_iso.pkts_per_urb = pkts_per_sec / 100;
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if (start_iso.pkts_per_urb < 1) { |
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start_iso.pkts_per_urb = 1;
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} else if (start_iso.pkts_per_urb > 32) { |
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start_iso.pkts_per_urb = 32;
|
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} |
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|
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start_iso.no_urbs = (dev->endpoint[EP2I(ep)].bufpq_target_size + |
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start_iso.pkts_per_urb - 1) /
|
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start_iso.pkts_per_urb; |
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/* Output endpoints pre-fill only 1/2 of the packets, keeping the rest
|
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as overflow buffer. Also see the usbredir protocol documentation */
|
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if (!(ep & USB_DIR_IN)) {
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start_iso.no_urbs *= 2;
|
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} |
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if (start_iso.no_urbs > 16) { |
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start_iso.no_urbs = 16;
|
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} |
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|
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/* No id, we look at the ep when receiving a status back */
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usbredirparser_send_start_iso_stream(dev->parser, 0, &start_iso);
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usbredirparser_do_write(dev->parser); |
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DPRINTF("iso stream started ep %02X\n", ep);
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dev->endpoint[EP2I(ep)].iso_started = 1;
|
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} |
| 378 |
|
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if (ep & USB_DIR_IN) {
|
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struct buf_packet *isop;
|
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|
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isop = QTAILQ_FIRST(&dev->endpoint[EP2I(ep)].bufpq); |
| 383 |
if (isop == NULL) { |
| 384 |
DPRINTF2("iso-token-in ep %02X, no isop\n", ep);
|
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/* Check iso_error for stream errors, otherwise its an underrun */
|
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status = dev->endpoint[EP2I(ep)].iso_error; |
| 387 |
dev->endpoint[EP2I(ep)].iso_error = 0;
|
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return usbredir_handle_status(dev, status, 0); |
| 389 |
} |
| 390 |
DPRINTF2("iso-token-in ep %02X status %d len %d\n", ep, isop->status,
|
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isop->len); |
| 392 |
|
| 393 |
status = isop->status; |
| 394 |
if (status != usb_redir_success) {
|
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bufp_free(dev, isop, ep); |
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return usbredir_handle_status(dev, status, 0); |
| 397 |
} |
| 398 |
|
| 399 |
len = isop->len; |
| 400 |
if (len > p->iov.size) {
|
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ERROR("received iso data is larger then packet ep %02X\n", ep);
|
| 402 |
bufp_free(dev, isop, ep); |
| 403 |
return USB_RET_NAK;
|
| 404 |
} |
| 405 |
usb_packet_copy(p, isop->data, len); |
| 406 |
bufp_free(dev, isop, ep); |
| 407 |
return len;
|
| 408 |
} else {
|
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/* If the stream was not started because of a pending error don't
|
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send the packet to the usb-host */
|
| 411 |
if (dev->endpoint[EP2I(ep)].iso_started) {
|
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struct usb_redir_iso_packet_header iso_packet = {
|
| 413 |
.endpoint = ep, |
| 414 |
.length = p->iov.size |
| 415 |
}; |
| 416 |
uint8_t buf[p->iov.size]; |
| 417 |
/* No id, we look at the ep when receiving a status back */
|
| 418 |
usb_packet_copy(p, buf, p->iov.size); |
| 419 |
usbredirparser_send_iso_packet(dev->parser, 0, &iso_packet,
|
| 420 |
buf, p->iov.size); |
| 421 |
usbredirparser_do_write(dev->parser); |
| 422 |
} |
| 423 |
status = dev->endpoint[EP2I(ep)].iso_error; |
| 424 |
dev->endpoint[EP2I(ep)].iso_error = 0;
|
| 425 |
DPRINTF2("iso-token-out ep %02X status %d len %zd\n", ep, status,
|
| 426 |
p->iov.size); |
| 427 |
return usbredir_handle_status(dev, status, p->iov.size);
|
| 428 |
} |
| 429 |
} |
| 430 |
|
| 431 |
static void usbredir_stop_iso_stream(USBRedirDevice *dev, uint8_t ep) |
| 432 |
{
|
| 433 |
struct usb_redir_stop_iso_stream_header stop_iso_stream = {
|
| 434 |
.endpoint = ep |
| 435 |
}; |
| 436 |
if (dev->endpoint[EP2I(ep)].iso_started) {
|
| 437 |
usbredirparser_send_stop_iso_stream(dev->parser, 0, &stop_iso_stream);
|
| 438 |
DPRINTF("iso stream stopped ep %02X\n", ep);
|
| 439 |
dev->endpoint[EP2I(ep)].iso_started = 0;
|
| 440 |
} |
| 441 |
dev->endpoint[EP2I(ep)].iso_error = 0;
|
| 442 |
usbredir_free_bufpq(dev, ep); |
| 443 |
} |
| 444 |
|
| 445 |
static int usbredir_handle_bulk_data(USBRedirDevice *dev, USBPacket *p, |
| 446 |
uint8_t ep) |
| 447 |
{
|
| 448 |
AsyncURB *aurb = async_alloc(dev, p); |
| 449 |
struct usb_redir_bulk_packet_header bulk_packet;
|
| 450 |
|
| 451 |
DPRINTF("bulk-out ep %02X len %zd id %u\n", ep,
|
| 452 |
p->iov.size, aurb->packet_id); |
| 453 |
|
| 454 |
bulk_packet.endpoint = ep; |
| 455 |
bulk_packet.length = p->iov.size; |
| 456 |
bulk_packet.stream_id = 0;
|
| 457 |
aurb->bulk_packet = bulk_packet; |
| 458 |
|
| 459 |
if (ep & USB_DIR_IN) {
|
| 460 |
usbredirparser_send_bulk_packet(dev->parser, aurb->packet_id, |
| 461 |
&bulk_packet, NULL, 0); |
| 462 |
} else {
|
| 463 |
uint8_t buf[p->iov.size]; |
| 464 |
usb_packet_copy(p, buf, p->iov.size); |
| 465 |
usbredir_log_data(dev, "bulk data out:", buf, p->iov.size);
|
| 466 |
usbredirparser_send_bulk_packet(dev->parser, aurb->packet_id, |
| 467 |
&bulk_packet, buf, p->iov.size); |
| 468 |
} |
| 469 |
usbredirparser_do_write(dev->parser); |
| 470 |
return USB_RET_ASYNC;
|
| 471 |
} |
| 472 |
|
| 473 |
static int usbredir_handle_interrupt_data(USBRedirDevice *dev, |
| 474 |
USBPacket *p, uint8_t ep) |
| 475 |
{
|
| 476 |
if (ep & USB_DIR_IN) {
|
| 477 |
/* Input interrupt endpoint, buffered packet input */
|
| 478 |
struct buf_packet *intp;
|
| 479 |
int status, len;
|
| 480 |
|
| 481 |
if (!dev->endpoint[EP2I(ep)].interrupt_started &&
|
| 482 |
!dev->endpoint[EP2I(ep)].interrupt_error) {
|
| 483 |
struct usb_redir_start_interrupt_receiving_header start_int = {
|
| 484 |
.endpoint = ep, |
| 485 |
}; |
| 486 |
/* No id, we look at the ep when receiving a status back */
|
| 487 |
usbredirparser_send_start_interrupt_receiving(dev->parser, 0,
|
| 488 |
&start_int); |
| 489 |
usbredirparser_do_write(dev->parser); |
| 490 |
DPRINTF("interrupt recv started ep %02X\n", ep);
|
| 491 |
dev->endpoint[EP2I(ep)].interrupt_started = 1;
|
| 492 |
} |
| 493 |
|
| 494 |
intp = QTAILQ_FIRST(&dev->endpoint[EP2I(ep)].bufpq); |
| 495 |
if (intp == NULL) { |
| 496 |
DPRINTF2("interrupt-token-in ep %02X, no intp\n", ep);
|
| 497 |
/* Check interrupt_error for stream errors */
|
| 498 |
status = dev->endpoint[EP2I(ep)].interrupt_error; |
| 499 |
dev->endpoint[EP2I(ep)].interrupt_error = 0;
|
| 500 |
return usbredir_handle_status(dev, status, 0); |
| 501 |
} |
| 502 |
DPRINTF("interrupt-token-in ep %02X status %d len %d\n", ep,
|
| 503 |
intp->status, intp->len); |
| 504 |
|
| 505 |
status = intp->status; |
| 506 |
if (status != usb_redir_success) {
|
| 507 |
bufp_free(dev, intp, ep); |
| 508 |
return usbredir_handle_status(dev, status, 0); |
| 509 |
} |
| 510 |
|
| 511 |
len = intp->len; |
| 512 |
if (len > p->iov.size) {
|
| 513 |
ERROR("received int data is larger then packet ep %02X\n", ep);
|
| 514 |
bufp_free(dev, intp, ep); |
| 515 |
return USB_RET_NAK;
|
| 516 |
} |
| 517 |
usb_packet_copy(p, intp->data, len); |
| 518 |
bufp_free(dev, intp, ep); |
| 519 |
return len;
|
| 520 |
} else {
|
| 521 |
/* Output interrupt endpoint, normal async operation */
|
| 522 |
AsyncURB *aurb = async_alloc(dev, p); |
| 523 |
struct usb_redir_interrupt_packet_header interrupt_packet;
|
| 524 |
uint8_t buf[p->iov.size]; |
| 525 |
|
| 526 |
DPRINTF("interrupt-out ep %02X len %zd id %u\n", ep, p->iov.size,
|
| 527 |
aurb->packet_id); |
| 528 |
|
| 529 |
interrupt_packet.endpoint = ep; |
| 530 |
interrupt_packet.length = p->iov.size; |
| 531 |
aurb->interrupt_packet = interrupt_packet; |
| 532 |
|
| 533 |
usb_packet_copy(p, buf, p->iov.size); |
| 534 |
usbredir_log_data(dev, "interrupt data out:", buf, p->iov.size);
|
| 535 |
usbredirparser_send_interrupt_packet(dev->parser, aurb->packet_id, |
| 536 |
&interrupt_packet, buf, p->iov.size); |
| 537 |
usbredirparser_do_write(dev->parser); |
| 538 |
return USB_RET_ASYNC;
|
| 539 |
} |
| 540 |
} |
| 541 |
|
| 542 |
static void usbredir_stop_interrupt_receiving(USBRedirDevice *dev, |
| 543 |
uint8_t ep) |
| 544 |
{
|
| 545 |
struct usb_redir_stop_interrupt_receiving_header stop_interrupt_recv = {
|
| 546 |
.endpoint = ep |
| 547 |
}; |
| 548 |
if (dev->endpoint[EP2I(ep)].interrupt_started) {
|
| 549 |
usbredirparser_send_stop_interrupt_receiving(dev->parser, 0,
|
| 550 |
&stop_interrupt_recv); |
| 551 |
DPRINTF("interrupt recv stopped ep %02X\n", ep);
|
| 552 |
dev->endpoint[EP2I(ep)].interrupt_started = 0;
|
| 553 |
} |
| 554 |
dev->endpoint[EP2I(ep)].interrupt_error = 0;
|
| 555 |
usbredir_free_bufpq(dev, ep); |
| 556 |
} |
| 557 |
|
| 558 |
static int usbredir_handle_data(USBDevice *udev, USBPacket *p) |
| 559 |
{
|
| 560 |
USBRedirDevice *dev = DO_UPCAST(USBRedirDevice, dev, udev); |
| 561 |
uint8_t ep; |
| 562 |
|
| 563 |
ep = p->devep; |
| 564 |
if (p->pid == USB_TOKEN_IN) {
|
| 565 |
ep |= USB_DIR_IN; |
| 566 |
} |
| 567 |
|
| 568 |
switch (dev->endpoint[EP2I(ep)].type) {
|
| 569 |
case USB_ENDPOINT_XFER_CONTROL:
|
| 570 |
ERROR("handle_data called for control transfer on ep %02X\n", ep);
|
| 571 |
return USB_RET_NAK;
|
| 572 |
case USB_ENDPOINT_XFER_ISOC:
|
| 573 |
return usbredir_handle_iso_data(dev, p, ep);
|
| 574 |
case USB_ENDPOINT_XFER_BULK:
|
| 575 |
return usbredir_handle_bulk_data(dev, p, ep);
|
| 576 |
case USB_ENDPOINT_XFER_INT:
|
| 577 |
return usbredir_handle_interrupt_data(dev, p, ep);
|
| 578 |
default:
|
| 579 |
ERROR("handle_data ep %02X has unknown type %d\n", ep,
|
| 580 |
dev->endpoint[EP2I(ep)].type); |
| 581 |
return USB_RET_NAK;
|
| 582 |
} |
| 583 |
} |
| 584 |
|
| 585 |
static int usbredir_set_config(USBRedirDevice *dev, USBPacket *p, |
| 586 |
int config)
|
| 587 |
{
|
| 588 |
struct usb_redir_set_configuration_header set_config;
|
| 589 |
AsyncURB *aurb = async_alloc(dev, p); |
| 590 |
int i;
|
| 591 |
|
| 592 |
DPRINTF("set config %d id %u\n", config, aurb->packet_id);
|
| 593 |
|
| 594 |
for (i = 0; i < MAX_ENDPOINTS; i++) { |
| 595 |
switch (dev->endpoint[i].type) {
|
| 596 |
case USB_ENDPOINT_XFER_ISOC:
|
| 597 |
usbredir_stop_iso_stream(dev, I2EP(i)); |
| 598 |
break;
|
| 599 |
case USB_ENDPOINT_XFER_INT:
|
| 600 |
if (i & 0x10) { |
| 601 |
usbredir_stop_interrupt_receiving(dev, I2EP(i)); |
| 602 |
} |
| 603 |
break;
|
| 604 |
} |
| 605 |
usbredir_free_bufpq(dev, I2EP(i)); |
| 606 |
} |
| 607 |
|
| 608 |
set_config.configuration = config; |
| 609 |
usbredirparser_send_set_configuration(dev->parser, aurb->packet_id, |
| 610 |
&set_config); |
| 611 |
usbredirparser_do_write(dev->parser); |
| 612 |
return USB_RET_ASYNC;
|
| 613 |
} |
| 614 |
|
| 615 |
static int usbredir_get_config(USBRedirDevice *dev, USBPacket *p) |
| 616 |
{
|
| 617 |
AsyncURB *aurb = async_alloc(dev, p); |
| 618 |
|
| 619 |
DPRINTF("get config id %u\n", aurb->packet_id);
|
| 620 |
|
| 621 |
aurb->get = 1;
|
| 622 |
usbredirparser_send_get_configuration(dev->parser, aurb->packet_id); |
| 623 |
usbredirparser_do_write(dev->parser); |
| 624 |
return USB_RET_ASYNC;
|
| 625 |
} |
| 626 |
|
| 627 |
static int usbredir_set_interface(USBRedirDevice *dev, USBPacket *p, |
| 628 |
int interface, int alt) |
| 629 |
{
|
| 630 |
struct usb_redir_set_alt_setting_header set_alt;
|
| 631 |
AsyncURB *aurb = async_alloc(dev, p); |
| 632 |
int i;
|
| 633 |
|
| 634 |
DPRINTF("set interface %d alt %d id %u\n", interface, alt,
|
| 635 |
aurb->packet_id); |
| 636 |
|
| 637 |
for (i = 0; i < MAX_ENDPOINTS; i++) { |
| 638 |
if (dev->endpoint[i].interface == interface) {
|
| 639 |
switch (dev->endpoint[i].type) {
|
| 640 |
case USB_ENDPOINT_XFER_ISOC:
|
| 641 |
usbredir_stop_iso_stream(dev, I2EP(i)); |
| 642 |
break;
|
| 643 |
case USB_ENDPOINT_XFER_INT:
|
| 644 |
if (i & 0x10) { |
| 645 |
usbredir_stop_interrupt_receiving(dev, I2EP(i)); |
| 646 |
} |
| 647 |
break;
|
| 648 |
} |
| 649 |
usbredir_free_bufpq(dev, I2EP(i)); |
| 650 |
} |
| 651 |
} |
| 652 |
|
| 653 |
set_alt.interface = interface; |
| 654 |
set_alt.alt = alt; |
| 655 |
usbredirparser_send_set_alt_setting(dev->parser, aurb->packet_id, |
| 656 |
&set_alt); |
| 657 |
usbredirparser_do_write(dev->parser); |
| 658 |
return USB_RET_ASYNC;
|
| 659 |
} |
| 660 |
|
| 661 |
static int usbredir_get_interface(USBRedirDevice *dev, USBPacket *p, |
| 662 |
int interface)
|
| 663 |
{
|
| 664 |
struct usb_redir_get_alt_setting_header get_alt;
|
| 665 |
AsyncURB *aurb = async_alloc(dev, p); |
| 666 |
|
| 667 |
DPRINTF("get interface %d id %u\n", interface, aurb->packet_id);
|
| 668 |
|
| 669 |
get_alt.interface = interface; |
| 670 |
aurb->get = 1;
|
| 671 |
usbredirparser_send_get_alt_setting(dev->parser, aurb->packet_id, |
| 672 |
&get_alt); |
| 673 |
usbredirparser_do_write(dev->parser); |
| 674 |
return USB_RET_ASYNC;
|
| 675 |
} |
| 676 |
|
| 677 |
static int usbredir_handle_control(USBDevice *udev, USBPacket *p, |
| 678 |
int request, int value, int index, int length, uint8_t *data) |
| 679 |
{
|
| 680 |
USBRedirDevice *dev = DO_UPCAST(USBRedirDevice, dev, udev); |
| 681 |
struct usb_redir_control_packet_header control_packet;
|
| 682 |
AsyncURB *aurb; |
| 683 |
|
| 684 |
/* Special cases for certain standard device requests */
|
| 685 |
switch (request) {
|
| 686 |
case DeviceOutRequest | USB_REQ_SET_ADDRESS:
|
| 687 |
DPRINTF("set address %d\n", value);
|
| 688 |
dev->dev.addr = value; |
| 689 |
return 0; |
| 690 |
case DeviceOutRequest | USB_REQ_SET_CONFIGURATION:
|
| 691 |
return usbredir_set_config(dev, p, value & 0xff); |
| 692 |
case DeviceRequest | USB_REQ_GET_CONFIGURATION:
|
| 693 |
return usbredir_get_config(dev, p);
|
| 694 |
case InterfaceOutRequest | USB_REQ_SET_INTERFACE:
|
| 695 |
return usbredir_set_interface(dev, p, index, value);
|
| 696 |
case InterfaceRequest | USB_REQ_GET_INTERFACE:
|
| 697 |
return usbredir_get_interface(dev, p, index);
|
| 698 |
} |
| 699 |
|
| 700 |
/* "Normal" ctrl requests */
|
| 701 |
aurb = async_alloc(dev, p); |
| 702 |
|
| 703 |
/* Note request is (bRequestType << 8) | bRequest */
|
| 704 |
DPRINTF("ctrl-out type 0x%x req 0x%x val 0x%x index %d len %d id %u\n",
|
| 705 |
request >> 8, request & 0xff, value, index, length, |
| 706 |
aurb->packet_id); |
| 707 |
|
| 708 |
control_packet.request = request & 0xFF;
|
| 709 |
control_packet.requesttype = request >> 8;
|
| 710 |
control_packet.endpoint = control_packet.requesttype & USB_DIR_IN; |
| 711 |
control_packet.value = value; |
| 712 |
control_packet.index = index; |
| 713 |
control_packet.length = length; |
| 714 |
aurb->control_packet = control_packet; |
| 715 |
|
| 716 |
if (control_packet.requesttype & USB_DIR_IN) {
|
| 717 |
usbredirparser_send_control_packet(dev->parser, aurb->packet_id, |
| 718 |
&control_packet, NULL, 0); |
| 719 |
} else {
|
| 720 |
usbredir_log_data(dev, "ctrl data out:", data, length);
|
| 721 |
usbredirparser_send_control_packet(dev->parser, aurb->packet_id, |
| 722 |
&control_packet, data, length); |
| 723 |
} |
| 724 |
usbredirparser_do_write(dev->parser); |
| 725 |
return USB_RET_ASYNC;
|
| 726 |
} |
| 727 |
|
| 728 |
/*
|
| 729 |
* Close events can be triggered by usbredirparser_do_write which gets called
|
| 730 |
* from within the USBDevice data / control packet callbacks and doing a
|
| 731 |
* usb_detach from within these callbacks is not a good idea.
|
| 732 |
*
|
| 733 |
* So we use a bh handler to take care of close events. We also handle
|
| 734 |
* open events from this callback to make sure that a close directly followed
|
| 735 |
* by an open gets handled in the right order.
|
| 736 |
*/
|
| 737 |
static void usbredir_open_close_bh(void *opaque) |
| 738 |
{
|
| 739 |
USBRedirDevice *dev = opaque; |
| 740 |
|
| 741 |
usbredir_device_disconnect(dev); |
| 742 |
|
| 743 |
if (dev->parser) {
|
| 744 |
usbredirparser_destroy(dev->parser); |
| 745 |
dev->parser = NULL;
|
| 746 |
} |
| 747 |
|
| 748 |
if (dev->cs->opened) {
|
| 749 |
dev->parser = qemu_oom_check(usbredirparser_create()); |
| 750 |
dev->parser->priv = dev; |
| 751 |
dev->parser->log_func = usbredir_log; |
| 752 |
dev->parser->read_func = usbredir_read; |
| 753 |
dev->parser->write_func = usbredir_write; |
| 754 |
dev->parser->device_connect_func = usbredir_device_connect; |
| 755 |
dev->parser->device_disconnect_func = usbredir_device_disconnect; |
| 756 |
dev->parser->interface_info_func = usbredir_interface_info; |
| 757 |
dev->parser->ep_info_func = usbredir_ep_info; |
| 758 |
dev->parser->configuration_status_func = usbredir_configuration_status; |
| 759 |
dev->parser->alt_setting_status_func = usbredir_alt_setting_status; |
| 760 |
dev->parser->iso_stream_status_func = usbredir_iso_stream_status; |
| 761 |
dev->parser->interrupt_receiving_status_func = |
| 762 |
usbredir_interrupt_receiving_status; |
| 763 |
dev->parser->bulk_streams_status_func = usbredir_bulk_streams_status; |
| 764 |
dev->parser->control_packet_func = usbredir_control_packet; |
| 765 |
dev->parser->bulk_packet_func = usbredir_bulk_packet; |
| 766 |
dev->parser->iso_packet_func = usbredir_iso_packet; |
| 767 |
dev->parser->interrupt_packet_func = usbredir_interrupt_packet; |
| 768 |
dev->read_buf = NULL;
|
| 769 |
dev->read_buf_size = 0;
|
| 770 |
usbredirparser_init(dev->parser, VERSION, NULL, 0, 0); |
| 771 |
usbredirparser_do_write(dev->parser); |
| 772 |
} |
| 773 |
} |
| 774 |
|
| 775 |
static void usbredir_do_attach(void *opaque) |
| 776 |
{
|
| 777 |
USBRedirDevice *dev = opaque; |
| 778 |
|
| 779 |
usb_device_attach(&dev->dev); |
| 780 |
} |
| 781 |
|
| 782 |
/*
|
| 783 |
* chardev callbacks
|
| 784 |
*/
|
| 785 |
|
| 786 |
static int usbredir_chardev_can_read(void *opaque) |
| 787 |
{
|
| 788 |
USBRedirDevice *dev = opaque; |
| 789 |
|
| 790 |
if (dev->parser) {
|
| 791 |
/* usbredir_parser_do_read will consume *all* data we give it */
|
| 792 |
return 1024 * 1024; |
| 793 |
} else {
|
| 794 |
/* usbredir_open_close_bh hasn't handled the open event yet */
|
| 795 |
return 0; |
| 796 |
} |
| 797 |
} |
| 798 |
|
| 799 |
static void usbredir_chardev_read(void *opaque, const uint8_t *buf, int size) |
| 800 |
{
|
| 801 |
USBRedirDevice *dev = opaque; |
| 802 |
|
| 803 |
/* No recursion allowed! */
|
| 804 |
assert(dev->read_buf == NULL);
|
| 805 |
|
| 806 |
dev->read_buf = buf; |
| 807 |
dev->read_buf_size = size; |
| 808 |
|
| 809 |
usbredirparser_do_read(dev->parser); |
| 810 |
/* Send any acks, etc. which may be queued now */
|
| 811 |
usbredirparser_do_write(dev->parser); |
| 812 |
} |
| 813 |
|
| 814 |
static void usbredir_chardev_event(void *opaque, int event) |
| 815 |
{
|
| 816 |
USBRedirDevice *dev = opaque; |
| 817 |
|
| 818 |
switch (event) {
|
| 819 |
case CHR_EVENT_OPENED:
|
| 820 |
case CHR_EVENT_CLOSED:
|
| 821 |
qemu_bh_schedule(dev->open_close_bh); |
| 822 |
break;
|
| 823 |
} |
| 824 |
} |
| 825 |
|
| 826 |
/*
|
| 827 |
* init + destroy
|
| 828 |
*/
|
| 829 |
|
| 830 |
static int usbredir_initfn(USBDevice *udev) |
| 831 |
{
|
| 832 |
USBRedirDevice *dev = DO_UPCAST(USBRedirDevice, dev, udev); |
| 833 |
int i;
|
| 834 |
|
| 835 |
if (dev->cs == NULL) { |
| 836 |
qerror_report(QERR_MISSING_PARAMETER, "chardev");
|
| 837 |
return -1; |
| 838 |
} |
| 839 |
|
| 840 |
dev->open_close_bh = qemu_bh_new(usbredir_open_close_bh, dev); |
| 841 |
dev->attach_timer = qemu_new_timer_ms(vm_clock, usbredir_do_attach, dev); |
| 842 |
|
| 843 |
QTAILQ_INIT(&dev->asyncq); |
| 844 |
for (i = 0; i < MAX_ENDPOINTS; i++) { |
| 845 |
QTAILQ_INIT(&dev->endpoint[i].bufpq); |
| 846 |
} |
| 847 |
|
| 848 |
/* We'll do the attach once we receive the speed from the usb-host */
|
| 849 |
udev->auto_attach = 0;
|
| 850 |
|
| 851 |
/* Let the backend know we are ready */
|
| 852 |
qemu_chr_fe_open(dev->cs); |
| 853 |
qemu_chr_add_handlers(dev->cs, usbredir_chardev_can_read, |
| 854 |
usbredir_chardev_read, usbredir_chardev_event, dev); |
| 855 |
|
| 856 |
return 0; |
| 857 |
} |
| 858 |
|
| 859 |
static void usbredir_cleanup_device_queues(USBRedirDevice *dev) |
| 860 |
{
|
| 861 |
AsyncURB *aurb, *next_aurb; |
| 862 |
int i;
|
| 863 |
|
| 864 |
QTAILQ_FOREACH_SAFE(aurb, &dev->asyncq, next, next_aurb) {
|
| 865 |
async_free(dev, aurb); |
| 866 |
} |
| 867 |
for (i = 0; i < MAX_ENDPOINTS; i++) { |
| 868 |
usbredir_free_bufpq(dev, I2EP(i)); |
| 869 |
} |
| 870 |
} |
| 871 |
|
| 872 |
static void usbredir_handle_destroy(USBDevice *udev) |
| 873 |
{
|
| 874 |
USBRedirDevice *dev = DO_UPCAST(USBRedirDevice, dev, udev); |
| 875 |
|
| 876 |
qemu_chr_fe_close(dev->cs); |
| 877 |
qemu_chr_delete(dev->cs); |
| 878 |
/* Note must be done after qemu_chr_close, as that causes a close event */
|
| 879 |
qemu_bh_delete(dev->open_close_bh); |
| 880 |
|
| 881 |
qemu_del_timer(dev->attach_timer); |
| 882 |
qemu_free_timer(dev->attach_timer); |
| 883 |
|
| 884 |
usbredir_cleanup_device_queues(dev); |
| 885 |
|
| 886 |
if (dev->parser) {
|
| 887 |
usbredirparser_destroy(dev->parser); |
| 888 |
} |
| 889 |
} |
| 890 |
|
| 891 |
/*
|
| 892 |
* usbredirparser packet complete callbacks
|
| 893 |
*/
|
| 894 |
|
| 895 |
static int usbredir_handle_status(USBRedirDevice *dev, |
| 896 |
int status, int actual_len) |
| 897 |
{
|
| 898 |
switch (status) {
|
| 899 |
case usb_redir_success:
|
| 900 |
return actual_len;
|
| 901 |
case usb_redir_stall:
|
| 902 |
return USB_RET_STALL;
|
| 903 |
case usb_redir_cancelled:
|
| 904 |
WARNING("returning cancelled packet to HC?\n");
|
| 905 |
case usb_redir_inval:
|
| 906 |
case usb_redir_ioerror:
|
| 907 |
case usb_redir_timeout:
|
| 908 |
default:
|
| 909 |
return USB_RET_NAK;
|
| 910 |
} |
| 911 |
} |
| 912 |
|
| 913 |
static void usbredir_device_connect(void *priv, |
| 914 |
struct usb_redir_device_connect_header *device_connect)
|
| 915 |
{
|
| 916 |
USBRedirDevice *dev = priv; |
| 917 |
|
| 918 |
if (qemu_timer_pending(dev->attach_timer) || dev->dev.attached) {
|
| 919 |
ERROR("Received device connect while already connected\n");
|
| 920 |
return;
|
| 921 |
} |
| 922 |
|
| 923 |
switch (device_connect->speed) {
|
| 924 |
case usb_redir_speed_low:
|
| 925 |
DPRINTF("attaching low speed device\n");
|
| 926 |
dev->dev.speed = USB_SPEED_LOW; |
| 927 |
break;
|
| 928 |
case usb_redir_speed_full:
|
| 929 |
DPRINTF("attaching full speed device\n");
|
| 930 |
dev->dev.speed = USB_SPEED_FULL; |
| 931 |
break;
|
| 932 |
case usb_redir_speed_high:
|
| 933 |
DPRINTF("attaching high speed device\n");
|
| 934 |
dev->dev.speed = USB_SPEED_HIGH; |
| 935 |
break;
|
| 936 |
case usb_redir_speed_super:
|
| 937 |
DPRINTF("attaching super speed device\n");
|
| 938 |
dev->dev.speed = USB_SPEED_SUPER; |
| 939 |
break;
|
| 940 |
default:
|
| 941 |
DPRINTF("attaching unknown speed device, assuming full speed\n");
|
| 942 |
dev->dev.speed = USB_SPEED_FULL; |
| 943 |
} |
| 944 |
dev->dev.speedmask = (1 << dev->dev.speed);
|
| 945 |
qemu_mod_timer(dev->attach_timer, dev->next_attach_time); |
| 946 |
} |
| 947 |
|
| 948 |
static void usbredir_device_disconnect(void *priv) |
| 949 |
{
|
| 950 |
USBRedirDevice *dev = priv; |
| 951 |
int i;
|
| 952 |
|
| 953 |
/* Stop any pending attaches */
|
| 954 |
qemu_del_timer(dev->attach_timer); |
| 955 |
|
| 956 |
if (dev->dev.attached) {
|
| 957 |
usb_device_detach(&dev->dev); |
| 958 |
/*
|
| 959 |
* Delay next usb device attach to give the guest a chance to see
|
| 960 |
* see the detach / attach in case of quick close / open succession
|
| 961 |
*/
|
| 962 |
dev->next_attach_time = qemu_get_clock_ms(vm_clock) + 200;
|
| 963 |
} |
| 964 |
|
| 965 |
/* Reset state so that the next dev connected starts with a clean slate */
|
| 966 |
usbredir_cleanup_device_queues(dev); |
| 967 |
memset(dev->endpoint, 0, sizeof(dev->endpoint)); |
| 968 |
for (i = 0; i < MAX_ENDPOINTS; i++) { |
| 969 |
QTAILQ_INIT(&dev->endpoint[i].bufpq); |
| 970 |
} |
| 971 |
} |
| 972 |
|
| 973 |
static void usbredir_interface_info(void *priv, |
| 974 |
struct usb_redir_interface_info_header *interface_info)
|
| 975 |
{
|
| 976 |
/* The intention is to allow specifying acceptable interface classes
|
| 977 |
for redirection on the cmdline and in the future verify this here,
|
| 978 |
and disconnect (or never connect) the device if a not accepted
|
| 979 |
interface class is detected */
|
| 980 |
} |
| 981 |
|
| 982 |
static void usbredir_ep_info(void *priv, |
| 983 |
struct usb_redir_ep_info_header *ep_info)
|
| 984 |
{
|
| 985 |
USBRedirDevice *dev = priv; |
| 986 |
int i;
|
| 987 |
|
| 988 |
for (i = 0; i < MAX_ENDPOINTS; i++) { |
| 989 |
dev->endpoint[i].type = ep_info->type[i]; |
| 990 |
dev->endpoint[i].interval = ep_info->interval[i]; |
| 991 |
dev->endpoint[i].interface = ep_info->interface[i]; |
| 992 |
switch (dev->endpoint[i].type) {
|
| 993 |
case usb_redir_type_invalid:
|
| 994 |
break;
|
| 995 |
case usb_redir_type_iso:
|
| 996 |
case usb_redir_type_interrupt:
|
| 997 |
if (dev->endpoint[i].interval == 0) { |
| 998 |
ERROR("Received 0 interval for isoc or irq endpoint\n");
|
| 999 |
usbredir_device_disconnect(dev); |
| 1000 |
} |
| 1001 |
/* Fall through */
|
| 1002 |
case usb_redir_type_control:
|
| 1003 |
case usb_redir_type_bulk:
|
| 1004 |
DPRINTF("ep: %02X type: %d interface: %d\n", I2EP(i),
|
| 1005 |
dev->endpoint[i].type, dev->endpoint[i].interface); |
| 1006 |
break;
|
| 1007 |
default:
|
| 1008 |
ERROR("Received invalid endpoint type\n");
|
| 1009 |
usbredir_device_disconnect(dev); |
| 1010 |
} |
| 1011 |
} |
| 1012 |
} |
| 1013 |
|
| 1014 |
static void usbredir_configuration_status(void *priv, uint32_t id, |
| 1015 |
struct usb_redir_configuration_status_header *config_status)
|
| 1016 |
{
|
| 1017 |
USBRedirDevice *dev = priv; |
| 1018 |
AsyncURB *aurb; |
| 1019 |
int len = 0; |
| 1020 |
|
| 1021 |
DPRINTF("set config status %d config %d id %u\n", config_status->status,
|
| 1022 |
config_status->configuration, id); |
| 1023 |
|
| 1024 |
aurb = async_find(dev, id); |
| 1025 |
if (!aurb) {
|
| 1026 |
return;
|
| 1027 |
} |
| 1028 |
if (aurb->packet) {
|
| 1029 |
if (aurb->get) {
|
| 1030 |
dev->dev.data_buf[0] = config_status->configuration;
|
| 1031 |
len = 1;
|
| 1032 |
} |
| 1033 |
aurb->packet->result = |
| 1034 |
usbredir_handle_status(dev, config_status->status, len); |
| 1035 |
usb_generic_async_ctrl_complete(&dev->dev, aurb->packet); |
| 1036 |
} |
| 1037 |
async_free(dev, aurb); |
| 1038 |
} |
| 1039 |
|
| 1040 |
static void usbredir_alt_setting_status(void *priv, uint32_t id, |
| 1041 |
struct usb_redir_alt_setting_status_header *alt_setting_status)
|
| 1042 |
{
|
| 1043 |
USBRedirDevice *dev = priv; |
| 1044 |
AsyncURB *aurb; |
| 1045 |
int len = 0; |
| 1046 |
|
| 1047 |
DPRINTF("alt status %d intf %d alt %d id: %u\n",
|
| 1048 |
alt_setting_status->status, |
| 1049 |
alt_setting_status->interface, |
| 1050 |
alt_setting_status->alt, id); |
| 1051 |
|
| 1052 |
aurb = async_find(dev, id); |
| 1053 |
if (!aurb) {
|
| 1054 |
return;
|
| 1055 |
} |
| 1056 |
if (aurb->packet) {
|
| 1057 |
if (aurb->get) {
|
| 1058 |
dev->dev.data_buf[0] = alt_setting_status->alt;
|
| 1059 |
len = 1;
|
| 1060 |
} |
| 1061 |
aurb->packet->result = |
| 1062 |
usbredir_handle_status(dev, alt_setting_status->status, len); |
| 1063 |
usb_generic_async_ctrl_complete(&dev->dev, aurb->packet); |
| 1064 |
} |
| 1065 |
async_free(dev, aurb); |
| 1066 |
} |
| 1067 |
|
| 1068 |
static void usbredir_iso_stream_status(void *priv, uint32_t id, |
| 1069 |
struct usb_redir_iso_stream_status_header *iso_stream_status)
|
| 1070 |
{
|
| 1071 |
USBRedirDevice *dev = priv; |
| 1072 |
uint8_t ep = iso_stream_status->endpoint; |
| 1073 |
|
| 1074 |
DPRINTF("iso status %d ep %02X id %u\n", iso_stream_status->status,
|
| 1075 |
ep, id); |
| 1076 |
|
| 1077 |
if (!dev->dev.attached || !dev->endpoint[EP2I(ep)].iso_started) {
|
| 1078 |
return;
|
| 1079 |
} |
| 1080 |
|
| 1081 |
dev->endpoint[EP2I(ep)].iso_error = iso_stream_status->status; |
| 1082 |
if (iso_stream_status->status == usb_redir_stall) {
|
| 1083 |
DPRINTF("iso stream stopped by peer ep %02X\n", ep);
|
| 1084 |
dev->endpoint[EP2I(ep)].iso_started = 0;
|
| 1085 |
} |
| 1086 |
} |
| 1087 |
|
| 1088 |
static void usbredir_interrupt_receiving_status(void *priv, uint32_t id, |
| 1089 |
struct usb_redir_interrupt_receiving_status_header
|
| 1090 |
*interrupt_receiving_status) |
| 1091 |
{
|
| 1092 |
USBRedirDevice *dev = priv; |
| 1093 |
uint8_t ep = interrupt_receiving_status->endpoint; |
| 1094 |
|
| 1095 |
DPRINTF("interrupt recv status %d ep %02X id %u\n",
|
| 1096 |
interrupt_receiving_status->status, ep, id); |
| 1097 |
|
| 1098 |
if (!dev->dev.attached || !dev->endpoint[EP2I(ep)].interrupt_started) {
|
| 1099 |
return;
|
| 1100 |
} |
| 1101 |
|
| 1102 |
dev->endpoint[EP2I(ep)].interrupt_error = |
| 1103 |
interrupt_receiving_status->status; |
| 1104 |
if (interrupt_receiving_status->status == usb_redir_stall) {
|
| 1105 |
DPRINTF("interrupt receiving stopped by peer ep %02X\n", ep);
|
| 1106 |
dev->endpoint[EP2I(ep)].interrupt_started = 0;
|
| 1107 |
} |
| 1108 |
} |
| 1109 |
|
| 1110 |
static void usbredir_bulk_streams_status(void *priv, uint32_t id, |
| 1111 |
struct usb_redir_bulk_streams_status_header *bulk_streams_status)
|
| 1112 |
{
|
| 1113 |
} |
| 1114 |
|
| 1115 |
static void usbredir_control_packet(void *priv, uint32_t id, |
| 1116 |
struct usb_redir_control_packet_header *control_packet,
|
| 1117 |
uint8_t *data, int data_len)
|
| 1118 |
{
|
| 1119 |
USBRedirDevice *dev = priv; |
| 1120 |
int len = control_packet->length;
|
| 1121 |
AsyncURB *aurb; |
| 1122 |
|
| 1123 |
DPRINTF("ctrl-in status %d len %d id %u\n", control_packet->status,
|
| 1124 |
len, id); |
| 1125 |
|
| 1126 |
aurb = async_find(dev, id); |
| 1127 |
if (!aurb) {
|
| 1128 |
free(data); |
| 1129 |
return;
|
| 1130 |
} |
| 1131 |
|
| 1132 |
aurb->control_packet.status = control_packet->status; |
| 1133 |
aurb->control_packet.length = control_packet->length; |
| 1134 |
if (memcmp(&aurb->control_packet, control_packet,
|
| 1135 |
sizeof(*control_packet))) {
|
| 1136 |
ERROR("return control packet mismatch, please report this!\n");
|
| 1137 |
len = USB_RET_NAK; |
| 1138 |
} |
| 1139 |
|
| 1140 |
if (aurb->packet) {
|
| 1141 |
len = usbredir_handle_status(dev, control_packet->status, len); |
| 1142 |
if (len > 0) { |
| 1143 |
usbredir_log_data(dev, "ctrl data in:", data, data_len);
|
| 1144 |
if (data_len <= sizeof(dev->dev.data_buf)) { |
| 1145 |
memcpy(dev->dev.data_buf, data, data_len); |
| 1146 |
} else {
|
| 1147 |
ERROR("ctrl buffer too small (%d > %zu)\n",
|
| 1148 |
data_len, sizeof(dev->dev.data_buf));
|
| 1149 |
len = USB_RET_STALL; |
| 1150 |
} |
| 1151 |
} |
| 1152 |
aurb->packet->result = len; |
| 1153 |
usb_generic_async_ctrl_complete(&dev->dev, aurb->packet); |
| 1154 |
} |
| 1155 |
async_free(dev, aurb); |
| 1156 |
free(data); |
| 1157 |
} |
| 1158 |
|
| 1159 |
static void usbredir_bulk_packet(void *priv, uint32_t id, |
| 1160 |
struct usb_redir_bulk_packet_header *bulk_packet,
|
| 1161 |
uint8_t *data, int data_len)
|
| 1162 |
{
|
| 1163 |
USBRedirDevice *dev = priv; |
| 1164 |
uint8_t ep = bulk_packet->endpoint; |
| 1165 |
int len = bulk_packet->length;
|
| 1166 |
AsyncURB *aurb; |
| 1167 |
|
| 1168 |
DPRINTF("bulk-in status %d ep %02X len %d id %u\n", bulk_packet->status,
|
| 1169 |
ep, len, id); |
| 1170 |
|
| 1171 |
aurb = async_find(dev, id); |
| 1172 |
if (!aurb) {
|
| 1173 |
free(data); |
| 1174 |
return;
|
| 1175 |
} |
| 1176 |
|
| 1177 |
if (aurb->bulk_packet.endpoint != bulk_packet->endpoint ||
|
| 1178 |
aurb->bulk_packet.stream_id != bulk_packet->stream_id) {
|
| 1179 |
ERROR("return bulk packet mismatch, please report this!\n");
|
| 1180 |
len = USB_RET_NAK; |
| 1181 |
} |
| 1182 |
|
| 1183 |
if (aurb->packet) {
|
| 1184 |
len = usbredir_handle_status(dev, bulk_packet->status, len); |
| 1185 |
if (len > 0) { |
| 1186 |
usbredir_log_data(dev, "bulk data in:", data, data_len);
|
| 1187 |
if (data_len <= aurb->packet->iov.size) {
|
| 1188 |
usb_packet_copy(aurb->packet, data, data_len); |
| 1189 |
} else {
|
| 1190 |
ERROR("bulk buffer too small (%d > %zd)\n", data_len,
|
| 1191 |
aurb->packet->iov.size); |
| 1192 |
len = USB_RET_STALL; |
| 1193 |
} |
| 1194 |
} |
| 1195 |
aurb->packet->result = len; |
| 1196 |
usb_packet_complete(&dev->dev, aurb->packet); |
| 1197 |
} |
| 1198 |
async_free(dev, aurb); |
| 1199 |
free(data); |
| 1200 |
} |
| 1201 |
|
| 1202 |
static void usbredir_iso_packet(void *priv, uint32_t id, |
| 1203 |
struct usb_redir_iso_packet_header *iso_packet,
|
| 1204 |
uint8_t *data, int data_len)
|
| 1205 |
{
|
| 1206 |
USBRedirDevice *dev = priv; |
| 1207 |
uint8_t ep = iso_packet->endpoint; |
| 1208 |
|
| 1209 |
DPRINTF2("iso-in status %d ep %02X len %d id %u\n", iso_packet->status, ep,
|
| 1210 |
data_len, id); |
| 1211 |
|
| 1212 |
if (dev->endpoint[EP2I(ep)].type != USB_ENDPOINT_XFER_ISOC) {
|
| 1213 |
ERROR("received iso packet for non iso endpoint %02X\n", ep);
|
| 1214 |
free(data); |
| 1215 |
return;
|
| 1216 |
} |
| 1217 |
|
| 1218 |
if (dev->endpoint[EP2I(ep)].iso_started == 0) { |
| 1219 |
DPRINTF("received iso packet for non started stream ep %02X\n", ep);
|
| 1220 |
free(data); |
| 1221 |
return;
|
| 1222 |
} |
| 1223 |
|
| 1224 |
/* bufp_alloc also adds the packet to the ep queue */
|
| 1225 |
bufp_alloc(dev, data, data_len, iso_packet->status, ep); |
| 1226 |
} |
| 1227 |
|
| 1228 |
static void usbredir_interrupt_packet(void *priv, uint32_t id, |
| 1229 |
struct usb_redir_interrupt_packet_header *interrupt_packet,
|
| 1230 |
uint8_t *data, int data_len)
|
| 1231 |
{
|
| 1232 |
USBRedirDevice *dev = priv; |
| 1233 |
uint8_t ep = interrupt_packet->endpoint; |
| 1234 |
|
| 1235 |
DPRINTF("interrupt-in status %d ep %02X len %d id %u\n",
|
| 1236 |
interrupt_packet->status, ep, data_len, id); |
| 1237 |
|
| 1238 |
if (dev->endpoint[EP2I(ep)].type != USB_ENDPOINT_XFER_INT) {
|
| 1239 |
ERROR("received int packet for non interrupt endpoint %02X\n", ep);
|
| 1240 |
free(data); |
| 1241 |
return;
|
| 1242 |
} |
| 1243 |
|
| 1244 |
if (ep & USB_DIR_IN) {
|
| 1245 |
if (dev->endpoint[EP2I(ep)].interrupt_started == 0) { |
| 1246 |
DPRINTF("received int packet while not started ep %02X\n", ep);
|
| 1247 |
free(data); |
| 1248 |
return;
|
| 1249 |
} |
| 1250 |
|
| 1251 |
/* bufp_alloc also adds the packet to the ep queue */
|
| 1252 |
bufp_alloc(dev, data, data_len, interrupt_packet->status, ep); |
| 1253 |
} else {
|
| 1254 |
int len = interrupt_packet->length;
|
| 1255 |
|
| 1256 |
AsyncURB *aurb = async_find(dev, id); |
| 1257 |
if (!aurb) {
|
| 1258 |
return;
|
| 1259 |
} |
| 1260 |
|
| 1261 |
if (aurb->interrupt_packet.endpoint != interrupt_packet->endpoint) {
|
| 1262 |
ERROR("return int packet mismatch, please report this!\n");
|
| 1263 |
len = USB_RET_NAK; |
| 1264 |
} |
| 1265 |
|
| 1266 |
if (aurb->packet) {
|
| 1267 |
aurb->packet->result = usbredir_handle_status(dev, |
| 1268 |
interrupt_packet->status, len); |
| 1269 |
usb_packet_complete(&dev->dev, aurb->packet); |
| 1270 |
} |
| 1271 |
async_free(dev, aurb); |
| 1272 |
} |
| 1273 |
} |
| 1274 |
|
| 1275 |
static struct USBDeviceInfo usbredir_dev_info = { |
| 1276 |
.product_desc = "USB Redirection Device",
|
| 1277 |
.qdev.name = "usb-redir",
|
| 1278 |
.qdev.size = sizeof(USBRedirDevice),
|
| 1279 |
.init = usbredir_initfn, |
| 1280 |
.handle_destroy = usbredir_handle_destroy, |
| 1281 |
.handle_packet = usb_generic_handle_packet, |
| 1282 |
.cancel_packet = usbredir_cancel_packet, |
| 1283 |
.handle_reset = usbredir_handle_reset, |
| 1284 |
.handle_data = usbredir_handle_data, |
| 1285 |
.handle_control = usbredir_handle_control, |
| 1286 |
.qdev.props = (Property[]) {
|
| 1287 |
DEFINE_PROP_CHR("chardev", USBRedirDevice, cs),
|
| 1288 |
DEFINE_PROP_UINT8("debug", USBRedirDevice, debug, 0), |
| 1289 |
DEFINE_PROP_END_OF_LIST(), |
| 1290 |
}, |
| 1291 |
}; |
| 1292 |
|
| 1293 |
static void usbredir_register_devices(void) |
| 1294 |
{
|
| 1295 |
usb_qdev_register(&usbredir_dev_info); |
| 1296 |
} |
| 1297 |
device_init(usbredir_register_devices); |