root / usb-redir.c @ c9c3c80a
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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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typedef struct AsyncURB AsyncURB; |
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typedef struct USBRedirDevice USBRedirDevice; |
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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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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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uint8_t bufpq_prefilled; |
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uint8_t bufpq_dropping_packets; |
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QTAILQ_HEAD(, buf_packet) bufpq; |
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int bufpq_size;
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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 void 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;
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if (!dev->endpoint[EP2I(ep)].bufpq_dropping_packets &&
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dev->endpoint[EP2I(ep)].bufpq_size > |
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2 * dev->endpoint[EP2I(ep)].bufpq_target_size) {
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DPRINTF("bufpq overflow, dropping packets ep %02X\n", ep);
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dev->endpoint[EP2I(ep)].bufpq_dropping_packets = 1;
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} |
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/* Since we're interupting the stream anyways, drop enough packets to get
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back to our target buffer size */
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if (dev->endpoint[EP2I(ep)].bufpq_dropping_packets) {
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if (dev->endpoint[EP2I(ep)].bufpq_size >
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dev->endpoint[EP2I(ep)].bufpq_target_size) { |
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free(data); |
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return;
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} |
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dev->endpoint[EP2I(ep)].bufpq_dropping_packets = 0;
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} |
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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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dev->endpoint[EP2I(ep)].bufpq_size++; |
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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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dev->endpoint[EP2I(ep)].bufpq_size--; |
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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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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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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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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; |
373 |
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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) { |
378 |
start_iso.pkts_per_urb = 1;
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} else if (start_iso.pkts_per_urb > 32) { |
380 |
start_iso.pkts_per_urb = 32;
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} |
382 |
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start_iso.no_urbs = (dev->endpoint[EP2I(ep)].bufpq_target_size + |
384 |
start_iso.pkts_per_urb - 1) /
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start_iso.pkts_per_urb; |
386 |
/* 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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} |
391 |
if (start_iso.no_urbs > 16) { |
392 |
start_iso.no_urbs = 16;
|
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} |
394 |
|
395 |
/* 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); |
398 |
DPRINTF("iso stream started pkts/sec %d pkts/urb %d urbs %d ep %02X\n",
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pkts_per_sec, start_iso.pkts_per_urb, start_iso.no_urbs, ep); |
400 |
dev->endpoint[EP2I(ep)].iso_started = 1;
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dev->endpoint[EP2I(ep)].bufpq_prefilled = 0;
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dev->endpoint[EP2I(ep)].bufpq_dropping_packets = 0;
|
403 |
} |
404 |
|
405 |
if (ep & USB_DIR_IN) {
|
406 |
struct buf_packet *isop;
|
407 |
|
408 |
if (dev->endpoint[EP2I(ep)].iso_started &&
|
409 |
!dev->endpoint[EP2I(ep)].bufpq_prefilled) { |
410 |
if (dev->endpoint[EP2I(ep)].bufpq_size <
|
411 |
dev->endpoint[EP2I(ep)].bufpq_target_size) { |
412 |
return usbredir_handle_status(dev, 0, 0); |
413 |
} |
414 |
dev->endpoint[EP2I(ep)].bufpq_prefilled = 1;
|
415 |
} |
416 |
|
417 |
isop = QTAILQ_FIRST(&dev->endpoint[EP2I(ep)].bufpq); |
418 |
if (isop == NULL) { |
419 |
DPRINTF("iso-token-in ep %02X, no isop, iso_error: %d\n",
|
420 |
ep, dev->endpoint[EP2I(ep)].iso_error); |
421 |
/* Re-fill the buffer */
|
422 |
dev->endpoint[EP2I(ep)].bufpq_prefilled = 0;
|
423 |
/* Check iso_error for stream errors, otherwise its an underrun */
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424 |
status = dev->endpoint[EP2I(ep)].iso_error; |
425 |
dev->endpoint[EP2I(ep)].iso_error = 0;
|
426 |
return usbredir_handle_status(dev, status, 0); |
427 |
} |
428 |
DPRINTF2("iso-token-in ep %02X status %d len %d queue-size: %d\n", ep,
|
429 |
isop->status, isop->len, dev->endpoint[EP2I(ep)].bufpq_size); |
430 |
|
431 |
status = isop->status; |
432 |
if (status != usb_redir_success) {
|
433 |
bufp_free(dev, isop, ep); |
434 |
return usbredir_handle_status(dev, status, 0); |
435 |
} |
436 |
|
437 |
len = isop->len; |
438 |
if (len > p->iov.size) {
|
439 |
ERROR("received iso data is larger then packet ep %02X (%d > %d)\n",
|
440 |
ep, len, (int)p->iov.size);
|
441 |
bufp_free(dev, isop, ep); |
442 |
return USB_RET_NAK;
|
443 |
} |
444 |
usb_packet_copy(p, isop->data, len); |
445 |
bufp_free(dev, isop, ep); |
446 |
return len;
|
447 |
} else {
|
448 |
/* If the stream was not started because of a pending error don't
|
449 |
send the packet to the usb-host */
|
450 |
if (dev->endpoint[EP2I(ep)].iso_started) {
|
451 |
struct usb_redir_iso_packet_header iso_packet = {
|
452 |
.endpoint = ep, |
453 |
.length = p->iov.size |
454 |
}; |
455 |
uint8_t buf[p->iov.size]; |
456 |
/* No id, we look at the ep when receiving a status back */
|
457 |
usb_packet_copy(p, buf, p->iov.size); |
458 |
usbredirparser_send_iso_packet(dev->parser, 0, &iso_packet,
|
459 |
buf, p->iov.size); |
460 |
usbredirparser_do_write(dev->parser); |
461 |
} |
462 |
status = dev->endpoint[EP2I(ep)].iso_error; |
463 |
dev->endpoint[EP2I(ep)].iso_error = 0;
|
464 |
DPRINTF2("iso-token-out ep %02X status %d len %zd\n", ep, status,
|
465 |
p->iov.size); |
466 |
return usbredir_handle_status(dev, status, p->iov.size);
|
467 |
} |
468 |
} |
469 |
|
470 |
static void usbredir_stop_iso_stream(USBRedirDevice *dev, uint8_t ep) |
471 |
{ |
472 |
struct usb_redir_stop_iso_stream_header stop_iso_stream = {
|
473 |
.endpoint = ep |
474 |
}; |
475 |
if (dev->endpoint[EP2I(ep)].iso_started) {
|
476 |
usbredirparser_send_stop_iso_stream(dev->parser, 0, &stop_iso_stream);
|
477 |
DPRINTF("iso stream stopped ep %02X\n", ep);
|
478 |
dev->endpoint[EP2I(ep)].iso_started = 0;
|
479 |
} |
480 |
dev->endpoint[EP2I(ep)].iso_error = 0;
|
481 |
usbredir_free_bufpq(dev, ep); |
482 |
} |
483 |
|
484 |
static int usbredir_handle_bulk_data(USBRedirDevice *dev, USBPacket *p, |
485 |
uint8_t ep) |
486 |
{ |
487 |
AsyncURB *aurb = async_alloc(dev, p); |
488 |
struct usb_redir_bulk_packet_header bulk_packet;
|
489 |
|
490 |
DPRINTF("bulk-out ep %02X len %zd id %u\n", ep,
|
491 |
p->iov.size, aurb->packet_id); |
492 |
|
493 |
bulk_packet.endpoint = ep; |
494 |
bulk_packet.length = p->iov.size; |
495 |
bulk_packet.stream_id = 0;
|
496 |
aurb->bulk_packet = bulk_packet; |
497 |
|
498 |
if (ep & USB_DIR_IN) {
|
499 |
usbredirparser_send_bulk_packet(dev->parser, aurb->packet_id, |
500 |
&bulk_packet, NULL, 0); |
501 |
} else {
|
502 |
uint8_t buf[p->iov.size]; |
503 |
usb_packet_copy(p, buf, p->iov.size); |
504 |
usbredir_log_data(dev, "bulk data out:", buf, p->iov.size);
|
505 |
usbredirparser_send_bulk_packet(dev->parser, aurb->packet_id, |
506 |
&bulk_packet, buf, p->iov.size); |
507 |
} |
508 |
usbredirparser_do_write(dev->parser); |
509 |
return USB_RET_ASYNC;
|
510 |
} |
511 |
|
512 |
static int usbredir_handle_interrupt_data(USBRedirDevice *dev, |
513 |
USBPacket *p, uint8_t ep) |
514 |
{ |
515 |
if (ep & USB_DIR_IN) {
|
516 |
/* Input interrupt endpoint, buffered packet input */
|
517 |
struct buf_packet *intp;
|
518 |
int status, len;
|
519 |
|
520 |
if (!dev->endpoint[EP2I(ep)].interrupt_started &&
|
521 |
!dev->endpoint[EP2I(ep)].interrupt_error) { |
522 |
struct usb_redir_start_interrupt_receiving_header start_int = {
|
523 |
.endpoint = ep, |
524 |
}; |
525 |
/* No id, we look at the ep when receiving a status back */
|
526 |
usbredirparser_send_start_interrupt_receiving(dev->parser, 0,
|
527 |
&start_int); |
528 |
usbredirparser_do_write(dev->parser); |
529 |
DPRINTF("interrupt recv started ep %02X\n", ep);
|
530 |
dev->endpoint[EP2I(ep)].interrupt_started = 1;
|
531 |
/* We don't really want to drop interrupt packets ever, but
|
532 |
having some upper limit to how much we buffer is good. */
|
533 |
dev->endpoint[EP2I(ep)].bufpq_target_size = 1000;
|
534 |
dev->endpoint[EP2I(ep)].bufpq_dropping_packets = 0;
|
535 |
} |
536 |
|
537 |
intp = QTAILQ_FIRST(&dev->endpoint[EP2I(ep)].bufpq); |
538 |
if (intp == NULL) { |
539 |
DPRINTF2("interrupt-token-in ep %02X, no intp\n", ep);
|
540 |
/* Check interrupt_error for stream errors */
|
541 |
status = dev->endpoint[EP2I(ep)].interrupt_error; |
542 |
dev->endpoint[EP2I(ep)].interrupt_error = 0;
|
543 |
return usbredir_handle_status(dev, status, 0); |
544 |
} |
545 |
DPRINTF("interrupt-token-in ep %02X status %d len %d\n", ep,
|
546 |
intp->status, intp->len); |
547 |
|
548 |
status = intp->status; |
549 |
if (status != usb_redir_success) {
|
550 |
bufp_free(dev, intp, ep); |
551 |
return usbredir_handle_status(dev, status, 0); |
552 |
} |
553 |
|
554 |
len = intp->len; |
555 |
if (len > p->iov.size) {
|
556 |
ERROR("received int data is larger then packet ep %02X\n", ep);
|
557 |
bufp_free(dev, intp, ep); |
558 |
return USB_RET_NAK;
|
559 |
} |
560 |
usb_packet_copy(p, intp->data, len); |
561 |
bufp_free(dev, intp, ep); |
562 |
return len;
|
563 |
} else {
|
564 |
/* Output interrupt endpoint, normal async operation */
|
565 |
AsyncURB *aurb = async_alloc(dev, p); |
566 |
struct usb_redir_interrupt_packet_header interrupt_packet;
|
567 |
uint8_t buf[p->iov.size]; |
568 |
|
569 |
DPRINTF("interrupt-out ep %02X len %zd id %u\n", ep, p->iov.size,
|
570 |
aurb->packet_id); |
571 |
|
572 |
interrupt_packet.endpoint = ep; |
573 |
interrupt_packet.length = p->iov.size; |
574 |
aurb->interrupt_packet = interrupt_packet; |
575 |
|
576 |
usb_packet_copy(p, buf, p->iov.size); |
577 |
usbredir_log_data(dev, "interrupt data out:", buf, p->iov.size);
|
578 |
usbredirparser_send_interrupt_packet(dev->parser, aurb->packet_id, |
579 |
&interrupt_packet, buf, p->iov.size); |
580 |
usbredirparser_do_write(dev->parser); |
581 |
return USB_RET_ASYNC;
|
582 |
} |
583 |
} |
584 |
|
585 |
static void usbredir_stop_interrupt_receiving(USBRedirDevice *dev, |
586 |
uint8_t ep) |
587 |
{ |
588 |
struct usb_redir_stop_interrupt_receiving_header stop_interrupt_recv = {
|
589 |
.endpoint = ep |
590 |
}; |
591 |
if (dev->endpoint[EP2I(ep)].interrupt_started) {
|
592 |
usbredirparser_send_stop_interrupt_receiving(dev->parser, 0,
|
593 |
&stop_interrupt_recv); |
594 |
DPRINTF("interrupt recv stopped ep %02X\n", ep);
|
595 |
dev->endpoint[EP2I(ep)].interrupt_started = 0;
|
596 |
} |
597 |
dev->endpoint[EP2I(ep)].interrupt_error = 0;
|
598 |
usbredir_free_bufpq(dev, ep); |
599 |
} |
600 |
|
601 |
static int usbredir_handle_data(USBDevice *udev, USBPacket *p) |
602 |
{ |
603 |
USBRedirDevice *dev = DO_UPCAST(USBRedirDevice, dev, udev); |
604 |
uint8_t ep; |
605 |
|
606 |
ep = p->devep; |
607 |
if (p->pid == USB_TOKEN_IN) {
|
608 |
ep |= USB_DIR_IN; |
609 |
} |
610 |
|
611 |
switch (dev->endpoint[EP2I(ep)].type) {
|
612 |
case USB_ENDPOINT_XFER_CONTROL:
|
613 |
ERROR("handle_data called for control transfer on ep %02X\n", ep);
|
614 |
return USB_RET_NAK;
|
615 |
case USB_ENDPOINT_XFER_ISOC:
|
616 |
return usbredir_handle_iso_data(dev, p, ep);
|
617 |
case USB_ENDPOINT_XFER_BULK:
|
618 |
return usbredir_handle_bulk_data(dev, p, ep);
|
619 |
case USB_ENDPOINT_XFER_INT:
|
620 |
return usbredir_handle_interrupt_data(dev, p, ep);
|
621 |
default:
|
622 |
ERROR("handle_data ep %02X has unknown type %d\n", ep,
|
623 |
dev->endpoint[EP2I(ep)].type); |
624 |
return USB_RET_NAK;
|
625 |
} |
626 |
} |
627 |
|
628 |
static int usbredir_set_config(USBRedirDevice *dev, USBPacket *p, |
629 |
int config)
|
630 |
{ |
631 |
struct usb_redir_set_configuration_header set_config;
|
632 |
AsyncURB *aurb = async_alloc(dev, p); |
633 |
int i;
|
634 |
|
635 |
DPRINTF("set config %d id %u\n", config, aurb->packet_id);
|
636 |
|
637 |
for (i = 0; i < MAX_ENDPOINTS; i++) { |
638 |
switch (dev->endpoint[i].type) {
|
639 |
case USB_ENDPOINT_XFER_ISOC:
|
640 |
usbredir_stop_iso_stream(dev, I2EP(i)); |
641 |
break;
|
642 |
case USB_ENDPOINT_XFER_INT:
|
643 |
if (i & 0x10) { |
644 |
usbredir_stop_interrupt_receiving(dev, I2EP(i)); |
645 |
} |
646 |
break;
|
647 |
} |
648 |
usbredir_free_bufpq(dev, I2EP(i)); |
649 |
} |
650 |
|
651 |
set_config.configuration = config; |
652 |
usbredirparser_send_set_configuration(dev->parser, aurb->packet_id, |
653 |
&set_config); |
654 |
usbredirparser_do_write(dev->parser); |
655 |
return USB_RET_ASYNC;
|
656 |
} |
657 |
|
658 |
static int usbredir_get_config(USBRedirDevice *dev, USBPacket *p) |
659 |
{ |
660 |
AsyncURB *aurb = async_alloc(dev, p); |
661 |
|
662 |
DPRINTF("get config id %u\n", aurb->packet_id);
|
663 |
|
664 |
aurb->get = 1;
|
665 |
usbredirparser_send_get_configuration(dev->parser, aurb->packet_id); |
666 |
usbredirparser_do_write(dev->parser); |
667 |
return USB_RET_ASYNC;
|
668 |
} |
669 |
|
670 |
static int usbredir_set_interface(USBRedirDevice *dev, USBPacket *p, |
671 |
int interface, int alt) |
672 |
{ |
673 |
struct usb_redir_set_alt_setting_header set_alt;
|
674 |
AsyncURB *aurb = async_alloc(dev, p); |
675 |
int i;
|
676 |
|
677 |
DPRINTF("set interface %d alt %d id %u\n", interface, alt,
|
678 |
aurb->packet_id); |
679 |
|
680 |
for (i = 0; i < MAX_ENDPOINTS; i++) { |
681 |
if (dev->endpoint[i].interface == interface) {
|
682 |
switch (dev->endpoint[i].type) {
|
683 |
case USB_ENDPOINT_XFER_ISOC:
|
684 |
usbredir_stop_iso_stream(dev, I2EP(i)); |
685 |
break;
|
686 |
case USB_ENDPOINT_XFER_INT:
|
687 |
if (i & 0x10) { |
688 |
usbredir_stop_interrupt_receiving(dev, I2EP(i)); |
689 |
} |
690 |
break;
|
691 |
} |
692 |
usbredir_free_bufpq(dev, I2EP(i)); |
693 |
} |
694 |
} |
695 |
|
696 |
set_alt.interface = interface; |
697 |
set_alt.alt = alt; |
698 |
usbredirparser_send_set_alt_setting(dev->parser, aurb->packet_id, |
699 |
&set_alt); |
700 |
usbredirparser_do_write(dev->parser); |
701 |
return USB_RET_ASYNC;
|
702 |
} |
703 |
|
704 |
static int usbredir_get_interface(USBRedirDevice *dev, USBPacket *p, |
705 |
int interface)
|
706 |
{ |
707 |
struct usb_redir_get_alt_setting_header get_alt;
|
708 |
AsyncURB *aurb = async_alloc(dev, p); |
709 |
|
710 |
DPRINTF("get interface %d id %u\n", interface, aurb->packet_id);
|
711 |
|
712 |
get_alt.interface = interface; |
713 |
aurb->get = 1;
|
714 |
usbredirparser_send_get_alt_setting(dev->parser, aurb->packet_id, |
715 |
&get_alt); |
716 |
usbredirparser_do_write(dev->parser); |
717 |
return USB_RET_ASYNC;
|
718 |
} |
719 |
|
720 |
static int usbredir_handle_control(USBDevice *udev, USBPacket *p, |
721 |
int request, int value, int index, int length, uint8_t *data) |
722 |
{ |
723 |
USBRedirDevice *dev = DO_UPCAST(USBRedirDevice, dev, udev); |
724 |
struct usb_redir_control_packet_header control_packet;
|
725 |
AsyncURB *aurb; |
726 |
|
727 |
/* Special cases for certain standard device requests */
|
728 |
switch (request) {
|
729 |
case DeviceOutRequest | USB_REQ_SET_ADDRESS:
|
730 |
DPRINTF("set address %d\n", value);
|
731 |
dev->dev.addr = value; |
732 |
return 0; |
733 |
case DeviceOutRequest | USB_REQ_SET_CONFIGURATION:
|
734 |
return usbredir_set_config(dev, p, value & 0xff); |
735 |
case DeviceRequest | USB_REQ_GET_CONFIGURATION:
|
736 |
return usbredir_get_config(dev, p);
|
737 |
case InterfaceOutRequest | USB_REQ_SET_INTERFACE:
|
738 |
return usbredir_set_interface(dev, p, index, value);
|
739 |
case InterfaceRequest | USB_REQ_GET_INTERFACE:
|
740 |
return usbredir_get_interface(dev, p, index);
|
741 |
} |
742 |
|
743 |
/* "Normal" ctrl requests */
|
744 |
aurb = async_alloc(dev, p); |
745 |
|
746 |
/* Note request is (bRequestType << 8) | bRequest */
|
747 |
DPRINTF("ctrl-out type 0x%x req 0x%x val 0x%x index %d len %d id %u\n",
|
748 |
request >> 8, request & 0xff, value, index, length, |
749 |
aurb->packet_id); |
750 |
|
751 |
control_packet.request = request & 0xFF;
|
752 |
control_packet.requesttype = request >> 8;
|
753 |
control_packet.endpoint = control_packet.requesttype & USB_DIR_IN; |
754 |
control_packet.value = value; |
755 |
control_packet.index = index; |
756 |
control_packet.length = length; |
757 |
aurb->control_packet = control_packet; |
758 |
|
759 |
if (control_packet.requesttype & USB_DIR_IN) {
|
760 |
usbredirparser_send_control_packet(dev->parser, aurb->packet_id, |
761 |
&control_packet, NULL, 0); |
762 |
} else {
|
763 |
usbredir_log_data(dev, "ctrl data out:", data, length);
|
764 |
usbredirparser_send_control_packet(dev->parser, aurb->packet_id, |
765 |
&control_packet, data, length); |
766 |
} |
767 |
usbredirparser_do_write(dev->parser); |
768 |
return USB_RET_ASYNC;
|
769 |
} |
770 |
|
771 |
/*
|
772 |
* Close events can be triggered by usbredirparser_do_write which gets called
|
773 |
* from within the USBDevice data / control packet callbacks and doing a
|
774 |
* usb_detach from within these callbacks is not a good idea.
|
775 |
*
|
776 |
* So we use a bh handler to take care of close events. We also handle
|
777 |
* open events from this callback to make sure that a close directly followed
|
778 |
* by an open gets handled in the right order.
|
779 |
*/
|
780 |
static void usbredir_open_close_bh(void *opaque) |
781 |
{ |
782 |
USBRedirDevice *dev = opaque; |
783 |
|
784 |
usbredir_device_disconnect(dev); |
785 |
|
786 |
if (dev->parser) {
|
787 |
usbredirparser_destroy(dev->parser); |
788 |
dev->parser = NULL;
|
789 |
} |
790 |
|
791 |
if (dev->cs->opened) {
|
792 |
dev->parser = qemu_oom_check(usbredirparser_create()); |
793 |
dev->parser->priv = dev; |
794 |
dev->parser->log_func = usbredir_log; |
795 |
dev->parser->read_func = usbredir_read; |
796 |
dev->parser->write_func = usbredir_write; |
797 |
dev->parser->device_connect_func = usbredir_device_connect; |
798 |
dev->parser->device_disconnect_func = usbredir_device_disconnect; |
799 |
dev->parser->interface_info_func = usbredir_interface_info; |
800 |
dev->parser->ep_info_func = usbredir_ep_info; |
801 |
dev->parser->configuration_status_func = usbredir_configuration_status; |
802 |
dev->parser->alt_setting_status_func = usbredir_alt_setting_status; |
803 |
dev->parser->iso_stream_status_func = usbredir_iso_stream_status; |
804 |
dev->parser->interrupt_receiving_status_func = |
805 |
usbredir_interrupt_receiving_status; |
806 |
dev->parser->bulk_streams_status_func = usbredir_bulk_streams_status; |
807 |
dev->parser->control_packet_func = usbredir_control_packet; |
808 |
dev->parser->bulk_packet_func = usbredir_bulk_packet; |
809 |
dev->parser->iso_packet_func = usbredir_iso_packet; |
810 |
dev->parser->interrupt_packet_func = usbredir_interrupt_packet; |
811 |
dev->read_buf = NULL;
|
812 |
dev->read_buf_size = 0;
|
813 |
usbredirparser_init(dev->parser, VERSION, NULL, 0, 0); |
814 |
usbredirparser_do_write(dev->parser); |
815 |
} |
816 |
} |
817 |
|
818 |
static void usbredir_do_attach(void *opaque) |
819 |
{ |
820 |
USBRedirDevice *dev = opaque; |
821 |
|
822 |
usb_device_attach(&dev->dev); |
823 |
} |
824 |
|
825 |
/*
|
826 |
* chardev callbacks
|
827 |
*/
|
828 |
|
829 |
static int usbredir_chardev_can_read(void *opaque) |
830 |
{ |
831 |
USBRedirDevice *dev = opaque; |
832 |
|
833 |
if (dev->parser) {
|
834 |
/* usbredir_parser_do_read will consume *all* data we give it */
|
835 |
return 1024 * 1024; |
836 |
} else {
|
837 |
/* usbredir_open_close_bh hasn't handled the open event yet */
|
838 |
return 0; |
839 |
} |
840 |
} |
841 |
|
842 |
static void usbredir_chardev_read(void *opaque, const uint8_t *buf, int size) |
843 |
{ |
844 |
USBRedirDevice *dev = opaque; |
845 |
|
846 |
/* No recursion allowed! */
|
847 |
assert(dev->read_buf == NULL);
|
848 |
|
849 |
dev->read_buf = buf; |
850 |
dev->read_buf_size = size; |
851 |
|
852 |
usbredirparser_do_read(dev->parser); |
853 |
/* Send any acks, etc. which may be queued now */
|
854 |
usbredirparser_do_write(dev->parser); |
855 |
} |
856 |
|
857 |
static void usbredir_chardev_event(void *opaque, int event) |
858 |
{ |
859 |
USBRedirDevice *dev = opaque; |
860 |
|
861 |
switch (event) {
|
862 |
case CHR_EVENT_OPENED:
|
863 |
case CHR_EVENT_CLOSED:
|
864 |
qemu_bh_schedule(dev->open_close_bh); |
865 |
break;
|
866 |
} |
867 |
} |
868 |
|
869 |
/*
|
870 |
* init + destroy
|
871 |
*/
|
872 |
|
873 |
static int usbredir_initfn(USBDevice *udev) |
874 |
{ |
875 |
USBRedirDevice *dev = DO_UPCAST(USBRedirDevice, dev, udev); |
876 |
int i;
|
877 |
|
878 |
if (dev->cs == NULL) { |
879 |
qerror_report(QERR_MISSING_PARAMETER, "chardev");
|
880 |
return -1; |
881 |
} |
882 |
|
883 |
dev->open_close_bh = qemu_bh_new(usbredir_open_close_bh, dev); |
884 |
dev->attach_timer = qemu_new_timer_ms(vm_clock, usbredir_do_attach, dev); |
885 |
|
886 |
QTAILQ_INIT(&dev->asyncq); |
887 |
for (i = 0; i < MAX_ENDPOINTS; i++) { |
888 |
QTAILQ_INIT(&dev->endpoint[i].bufpq); |
889 |
} |
890 |
|
891 |
/* We'll do the attach once we receive the speed from the usb-host */
|
892 |
udev->auto_attach = 0;
|
893 |
|
894 |
/* Let the backend know we are ready */
|
895 |
qemu_chr_fe_open(dev->cs); |
896 |
qemu_chr_add_handlers(dev->cs, usbredir_chardev_can_read, |
897 |
usbredir_chardev_read, usbredir_chardev_event, dev); |
898 |
|
899 |
return 0; |
900 |
} |
901 |
|
902 |
static void usbredir_cleanup_device_queues(USBRedirDevice *dev) |
903 |
{ |
904 |
AsyncURB *aurb, *next_aurb; |
905 |
int i;
|
906 |
|
907 |
QTAILQ_FOREACH_SAFE(aurb, &dev->asyncq, next, next_aurb) { |
908 |
async_free(dev, aurb); |
909 |
} |
910 |
for (i = 0; i < MAX_ENDPOINTS; i++) { |
911 |
usbredir_free_bufpq(dev, I2EP(i)); |
912 |
} |
913 |
} |
914 |
|
915 |
static void usbredir_handle_destroy(USBDevice *udev) |
916 |
{ |
917 |
USBRedirDevice *dev = DO_UPCAST(USBRedirDevice, dev, udev); |
918 |
|
919 |
qemu_chr_fe_close(dev->cs); |
920 |
qemu_chr_delete(dev->cs); |
921 |
/* Note must be done after qemu_chr_close, as that causes a close event */
|
922 |
qemu_bh_delete(dev->open_close_bh); |
923 |
|
924 |
qemu_del_timer(dev->attach_timer); |
925 |
qemu_free_timer(dev->attach_timer); |
926 |
|
927 |
usbredir_cleanup_device_queues(dev); |
928 |
|
929 |
if (dev->parser) {
|
930 |
usbredirparser_destroy(dev->parser); |
931 |
} |
932 |
} |
933 |
|
934 |
/*
|
935 |
* usbredirparser packet complete callbacks
|
936 |
*/
|
937 |
|
938 |
static int usbredir_handle_status(USBRedirDevice *dev, |
939 |
int status, int actual_len) |
940 |
{ |
941 |
switch (status) {
|
942 |
case usb_redir_success:
|
943 |
return actual_len;
|
944 |
case usb_redir_stall:
|
945 |
return USB_RET_STALL;
|
946 |
case usb_redir_cancelled:
|
947 |
WARNING("returning cancelled packet to HC?\n");
|
948 |
case usb_redir_inval:
|
949 |
case usb_redir_ioerror:
|
950 |
case usb_redir_timeout:
|
951 |
default:
|
952 |
return USB_RET_NAK;
|
953 |
} |
954 |
} |
955 |
|
956 |
static void usbredir_device_connect(void *priv, |
957 |
struct usb_redir_device_connect_header *device_connect)
|
958 |
{ |
959 |
USBRedirDevice *dev = priv; |
960 |
|
961 |
if (qemu_timer_pending(dev->attach_timer) || dev->dev.attached) {
|
962 |
ERROR("Received device connect while already connected\n");
|
963 |
return;
|
964 |
} |
965 |
|
966 |
switch (device_connect->speed) {
|
967 |
case usb_redir_speed_low:
|
968 |
DPRINTF("attaching low speed device\n");
|
969 |
dev->dev.speed = USB_SPEED_LOW; |
970 |
break;
|
971 |
case usb_redir_speed_full:
|
972 |
DPRINTF("attaching full speed device\n");
|
973 |
dev->dev.speed = USB_SPEED_FULL; |
974 |
break;
|
975 |
case usb_redir_speed_high:
|
976 |
DPRINTF("attaching high speed device\n");
|
977 |
dev->dev.speed = USB_SPEED_HIGH; |
978 |
break;
|
979 |
case usb_redir_speed_super:
|
980 |
DPRINTF("attaching super speed device\n");
|
981 |
dev->dev.speed = USB_SPEED_SUPER; |
982 |
break;
|
983 |
default:
|
984 |
DPRINTF("attaching unknown speed device, assuming full speed\n");
|
985 |
dev->dev.speed = USB_SPEED_FULL; |
986 |
} |
987 |
dev->dev.speedmask = (1 << dev->dev.speed);
|
988 |
qemu_mod_timer(dev->attach_timer, dev->next_attach_time); |
989 |
} |
990 |
|
991 |
static void usbredir_device_disconnect(void *priv) |
992 |
{ |
993 |
USBRedirDevice *dev = priv; |
994 |
int i;
|
995 |
|
996 |
/* Stop any pending attaches */
|
997 |
qemu_del_timer(dev->attach_timer); |
998 |
|
999 |
if (dev->dev.attached) {
|
1000 |
usb_device_detach(&dev->dev); |
1001 |
/*
|
1002 |
* Delay next usb device attach to give the guest a chance to see
|
1003 |
* see the detach / attach in case of quick close / open succession
|
1004 |
*/
|
1005 |
dev->next_attach_time = qemu_get_clock_ms(vm_clock) + 200;
|
1006 |
} |
1007 |
|
1008 |
/* Reset state so that the next dev connected starts with a clean slate */
|
1009 |
usbredir_cleanup_device_queues(dev); |
1010 |
memset(dev->endpoint, 0, sizeof(dev->endpoint)); |
1011 |
for (i = 0; i < MAX_ENDPOINTS; i++) { |
1012 |
QTAILQ_INIT(&dev->endpoint[i].bufpq); |
1013 |
} |
1014 |
} |
1015 |
|
1016 |
static void usbredir_interface_info(void *priv, |
1017 |
struct usb_redir_interface_info_header *interface_info)
|
1018 |
{ |
1019 |
/* The intention is to allow specifying acceptable interface classes
|
1020 |
for redirection on the cmdline and in the future verify this here,
|
1021 |
and disconnect (or never connect) the device if a not accepted
|
1022 |
interface class is detected */
|
1023 |
} |
1024 |
|
1025 |
static void usbredir_ep_info(void *priv, |
1026 |
struct usb_redir_ep_info_header *ep_info)
|
1027 |
{ |
1028 |
USBRedirDevice *dev = priv; |
1029 |
int i;
|
1030 |
|
1031 |
for (i = 0; i < MAX_ENDPOINTS; i++) { |
1032 |
dev->endpoint[i].type = ep_info->type[i]; |
1033 |
dev->endpoint[i].interval = ep_info->interval[i]; |
1034 |
dev->endpoint[i].interface = ep_info->interface[i]; |
1035 |
switch (dev->endpoint[i].type) {
|
1036 |
case usb_redir_type_invalid:
|
1037 |
break;
|
1038 |
case usb_redir_type_iso:
|
1039 |
case usb_redir_type_interrupt:
|
1040 |
if (dev->endpoint[i].interval == 0) { |
1041 |
ERROR("Received 0 interval for isoc or irq endpoint\n");
|
1042 |
usbredir_device_disconnect(dev); |
1043 |
} |
1044 |
/* Fall through */
|
1045 |
case usb_redir_type_control:
|
1046 |
case usb_redir_type_bulk:
|
1047 |
DPRINTF("ep: %02X type: %d interface: %d\n", I2EP(i),
|
1048 |
dev->endpoint[i].type, dev->endpoint[i].interface); |
1049 |
break;
|
1050 |
default:
|
1051 |
ERROR("Received invalid endpoint type\n");
|
1052 |
usbredir_device_disconnect(dev); |
1053 |
} |
1054 |
} |
1055 |
} |
1056 |
|
1057 |
static void usbredir_configuration_status(void *priv, uint32_t id, |
1058 |
struct usb_redir_configuration_status_header *config_status)
|
1059 |
{ |
1060 |
USBRedirDevice *dev = priv; |
1061 |
AsyncURB *aurb; |
1062 |
int len = 0; |
1063 |
|
1064 |
DPRINTF("set config status %d config %d id %u\n", config_status->status,
|
1065 |
config_status->configuration, id); |
1066 |
|
1067 |
aurb = async_find(dev, id); |
1068 |
if (!aurb) {
|
1069 |
return;
|
1070 |
} |
1071 |
if (aurb->packet) {
|
1072 |
if (aurb->get) {
|
1073 |
dev->dev.data_buf[0] = config_status->configuration;
|
1074 |
len = 1;
|
1075 |
} |
1076 |
aurb->packet->result = |
1077 |
usbredir_handle_status(dev, config_status->status, len); |
1078 |
usb_generic_async_ctrl_complete(&dev->dev, aurb->packet); |
1079 |
} |
1080 |
async_free(dev, aurb); |
1081 |
} |
1082 |
|
1083 |
static void usbredir_alt_setting_status(void *priv, uint32_t id, |
1084 |
struct usb_redir_alt_setting_status_header *alt_setting_status)
|
1085 |
{ |
1086 |
USBRedirDevice *dev = priv; |
1087 |
AsyncURB *aurb; |
1088 |
int len = 0; |
1089 |
|
1090 |
DPRINTF("alt status %d intf %d alt %d id: %u\n",
|
1091 |
alt_setting_status->status, |
1092 |
alt_setting_status->interface, |
1093 |
alt_setting_status->alt, id); |
1094 |
|
1095 |
aurb = async_find(dev, id); |
1096 |
if (!aurb) {
|
1097 |
return;
|
1098 |
} |
1099 |
if (aurb->packet) {
|
1100 |
if (aurb->get) {
|
1101 |
dev->dev.data_buf[0] = alt_setting_status->alt;
|
1102 |
len = 1;
|
1103 |
} |
1104 |
aurb->packet->result = |
1105 |
usbredir_handle_status(dev, alt_setting_status->status, len); |
1106 |
usb_generic_async_ctrl_complete(&dev->dev, aurb->packet); |
1107 |
} |
1108 |
async_free(dev, aurb); |
1109 |
} |
1110 |
|
1111 |
static void usbredir_iso_stream_status(void *priv, uint32_t id, |
1112 |
struct usb_redir_iso_stream_status_header *iso_stream_status)
|
1113 |
{ |
1114 |
USBRedirDevice *dev = priv; |
1115 |
uint8_t ep = iso_stream_status->endpoint; |
1116 |
|
1117 |
DPRINTF("iso status %d ep %02X id %u\n", iso_stream_status->status,
|
1118 |
ep, id); |
1119 |
|
1120 |
if (!dev->dev.attached || !dev->endpoint[EP2I(ep)].iso_started) {
|
1121 |
return;
|
1122 |
} |
1123 |
|
1124 |
dev->endpoint[EP2I(ep)].iso_error = iso_stream_status->status; |
1125 |
if (iso_stream_status->status == usb_redir_stall) {
|
1126 |
DPRINTF("iso stream stopped by peer ep %02X\n", ep);
|
1127 |
dev->endpoint[EP2I(ep)].iso_started = 0;
|
1128 |
} |
1129 |
} |
1130 |
|
1131 |
static void usbredir_interrupt_receiving_status(void *priv, uint32_t id, |
1132 |
struct usb_redir_interrupt_receiving_status_header
|
1133 |
*interrupt_receiving_status) |
1134 |
{ |
1135 |
USBRedirDevice *dev = priv; |
1136 |
uint8_t ep = interrupt_receiving_status->endpoint; |
1137 |
|
1138 |
DPRINTF("interrupt recv status %d ep %02X id %u\n",
|
1139 |
interrupt_receiving_status->status, ep, id); |
1140 |
|
1141 |
if (!dev->dev.attached || !dev->endpoint[EP2I(ep)].interrupt_started) {
|
1142 |
return;
|
1143 |
} |
1144 |
|
1145 |
dev->endpoint[EP2I(ep)].interrupt_error = |
1146 |
interrupt_receiving_status->status; |
1147 |
if (interrupt_receiving_status->status == usb_redir_stall) {
|
1148 |
DPRINTF("interrupt receiving stopped by peer ep %02X\n", ep);
|
1149 |
dev->endpoint[EP2I(ep)].interrupt_started = 0;
|
1150 |
} |
1151 |
} |
1152 |
|
1153 |
static void usbredir_bulk_streams_status(void *priv, uint32_t id, |
1154 |
struct usb_redir_bulk_streams_status_header *bulk_streams_status)
|
1155 |
{ |
1156 |
} |
1157 |
|
1158 |
static void usbredir_control_packet(void *priv, uint32_t id, |
1159 |
struct usb_redir_control_packet_header *control_packet,
|
1160 |
uint8_t *data, int data_len)
|
1161 |
{ |
1162 |
USBRedirDevice *dev = priv; |
1163 |
int len = control_packet->length;
|
1164 |
AsyncURB *aurb; |
1165 |
|
1166 |
DPRINTF("ctrl-in status %d len %d id %u\n", control_packet->status,
|
1167 |
len, id); |
1168 |
|
1169 |
aurb = async_find(dev, id); |
1170 |
if (!aurb) {
|
1171 |
free(data); |
1172 |
return;
|
1173 |
} |
1174 |
|
1175 |
aurb->control_packet.status = control_packet->status; |
1176 |
aurb->control_packet.length = control_packet->length; |
1177 |
if (memcmp(&aurb->control_packet, control_packet,
|
1178 |
sizeof(*control_packet))) {
|
1179 |
ERROR("return control packet mismatch, please report this!\n");
|
1180 |
len = USB_RET_NAK; |
1181 |
} |
1182 |
|
1183 |
if (aurb->packet) {
|
1184 |
len = usbredir_handle_status(dev, control_packet->status, len); |
1185 |
if (len > 0) { |
1186 |
usbredir_log_data(dev, "ctrl data in:", data, data_len);
|
1187 |
if (data_len <= sizeof(dev->dev.data_buf)) { |
1188 |
memcpy(dev->dev.data_buf, data, data_len); |
1189 |
} else {
|
1190 |
ERROR("ctrl buffer too small (%d > %zu)\n",
|
1191 |
data_len, sizeof(dev->dev.data_buf));
|
1192 |
len = USB_RET_STALL; |
1193 |
} |
1194 |
} |
1195 |
aurb->packet->result = len; |
1196 |
usb_generic_async_ctrl_complete(&dev->dev, aurb->packet); |
1197 |
} |
1198 |
async_free(dev, aurb); |
1199 |
free(data); |
1200 |
} |
1201 |
|
1202 |
static void usbredir_bulk_packet(void *priv, uint32_t id, |
1203 |
struct usb_redir_bulk_packet_header *bulk_packet,
|
1204 |
uint8_t *data, int data_len)
|
1205 |
{ |
1206 |
USBRedirDevice *dev = priv; |
1207 |
uint8_t ep = bulk_packet->endpoint; |
1208 |
int len = bulk_packet->length;
|
1209 |
AsyncURB *aurb; |
1210 |
|
1211 |
DPRINTF("bulk-in status %d ep %02X len %d id %u\n", bulk_packet->status,
|
1212 |
ep, len, id); |
1213 |
|
1214 |
aurb = async_find(dev, id); |
1215 |
if (!aurb) {
|
1216 |
free(data); |
1217 |
return;
|
1218 |
} |
1219 |
|
1220 |
if (aurb->bulk_packet.endpoint != bulk_packet->endpoint ||
|
1221 |
aurb->bulk_packet.stream_id != bulk_packet->stream_id) { |
1222 |
ERROR("return bulk packet mismatch, please report this!\n");
|
1223 |
len = USB_RET_NAK; |
1224 |
} |
1225 |
|
1226 |
if (aurb->packet) {
|
1227 |
len = usbredir_handle_status(dev, bulk_packet->status, len); |
1228 |
if (len > 0) { |
1229 |
usbredir_log_data(dev, "bulk data in:", data, data_len);
|
1230 |
if (data_len <= aurb->packet->iov.size) {
|
1231 |
usb_packet_copy(aurb->packet, data, data_len); |
1232 |
} else {
|
1233 |
ERROR("bulk buffer too small (%d > %zd)\n", data_len,
|
1234 |
aurb->packet->iov.size); |
1235 |
len = USB_RET_STALL; |
1236 |
} |
1237 |
} |
1238 |
aurb->packet->result = len; |
1239 |
usb_packet_complete(&dev->dev, aurb->packet); |
1240 |
} |
1241 |
async_free(dev, aurb); |
1242 |
free(data); |
1243 |
} |
1244 |
|
1245 |
static void usbredir_iso_packet(void *priv, uint32_t id, |
1246 |
struct usb_redir_iso_packet_header *iso_packet,
|
1247 |
uint8_t *data, int data_len)
|
1248 |
{ |
1249 |
USBRedirDevice *dev = priv; |
1250 |
uint8_t ep = iso_packet->endpoint; |
1251 |
|
1252 |
DPRINTF2("iso-in status %d ep %02X len %d id %u\n", iso_packet->status, ep,
|
1253 |
data_len, id); |
1254 |
|
1255 |
if (dev->endpoint[EP2I(ep)].type != USB_ENDPOINT_XFER_ISOC) {
|
1256 |
ERROR("received iso packet for non iso endpoint %02X\n", ep);
|
1257 |
free(data); |
1258 |
return;
|
1259 |
} |
1260 |
|
1261 |
if (dev->endpoint[EP2I(ep)].iso_started == 0) { |
1262 |
DPRINTF("received iso packet for non started stream ep %02X\n", ep);
|
1263 |
free(data); |
1264 |
return;
|
1265 |
} |
1266 |
|
1267 |
/* bufp_alloc also adds the packet to the ep queue */
|
1268 |
bufp_alloc(dev, data, data_len, iso_packet->status, ep); |
1269 |
} |
1270 |
|
1271 |
static void usbredir_interrupt_packet(void *priv, uint32_t id, |
1272 |
struct usb_redir_interrupt_packet_header *interrupt_packet,
|
1273 |
uint8_t *data, int data_len)
|
1274 |
{ |
1275 |
USBRedirDevice *dev = priv; |
1276 |
uint8_t ep = interrupt_packet->endpoint; |
1277 |
|
1278 |
DPRINTF("interrupt-in status %d ep %02X len %d id %u\n",
|
1279 |
interrupt_packet->status, ep, data_len, id); |
1280 |
|
1281 |
if (dev->endpoint[EP2I(ep)].type != USB_ENDPOINT_XFER_INT) {
|
1282 |
ERROR("received int packet for non interrupt endpoint %02X\n", ep);
|
1283 |
free(data); |
1284 |
return;
|
1285 |
} |
1286 |
|
1287 |
if (ep & USB_DIR_IN) {
|
1288 |
if (dev->endpoint[EP2I(ep)].interrupt_started == 0) { |
1289 |
DPRINTF("received int packet while not started ep %02X\n", ep);
|
1290 |
free(data); |
1291 |
return;
|
1292 |
} |
1293 |
|
1294 |
/* bufp_alloc also adds the packet to the ep queue */
|
1295 |
bufp_alloc(dev, data, data_len, interrupt_packet->status, ep); |
1296 |
} else {
|
1297 |
int len = interrupt_packet->length;
|
1298 |
|
1299 |
AsyncURB *aurb = async_find(dev, id); |
1300 |
if (!aurb) {
|
1301 |
return;
|
1302 |
} |
1303 |
|
1304 |
if (aurb->interrupt_packet.endpoint != interrupt_packet->endpoint) {
|
1305 |
ERROR("return int packet mismatch, please report this!\n");
|
1306 |
len = USB_RET_NAK; |
1307 |
} |
1308 |
|
1309 |
if (aurb->packet) {
|
1310 |
aurb->packet->result = usbredir_handle_status(dev, |
1311 |
interrupt_packet->status, len); |
1312 |
usb_packet_complete(&dev->dev, aurb->packet); |
1313 |
} |
1314 |
async_free(dev, aurb); |
1315 |
} |
1316 |
} |
1317 |
|
1318 |
static struct USBDeviceInfo usbredir_dev_info = { |
1319 |
.product_desc = "USB Redirection Device",
|
1320 |
.qdev.name = "usb-redir",
|
1321 |
.qdev.size = sizeof(USBRedirDevice),
|
1322 |
.init = usbredir_initfn, |
1323 |
.handle_destroy = usbredir_handle_destroy, |
1324 |
.handle_packet = usb_generic_handle_packet, |
1325 |
.cancel_packet = usbredir_cancel_packet, |
1326 |
.handle_reset = usbredir_handle_reset, |
1327 |
.handle_data = usbredir_handle_data, |
1328 |
.handle_control = usbredir_handle_control, |
1329 |
.qdev.props = (Property[]) { |
1330 |
DEFINE_PROP_CHR("chardev", USBRedirDevice, cs),
|
1331 |
DEFINE_PROP_UINT8("debug", USBRedirDevice, debug, 0), |
1332 |
DEFINE_PROP_END_OF_LIST(), |
1333 |
}, |
1334 |
}; |
1335 |
|
1336 |
static void usbredir_register_devices(void) |
1337 |
{ |
1338 |
usb_qdev_register(&usbredir_dev_info); |
1339 |
} |
1340 |
device_init(usbredir_register_devices); |