1 /*-
2 * Copyright (c) 1997, 1998, 1999, 2000
3 * Bill Paul <wpaul@ee.columbia.edu>. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by Bill Paul.
16 * 4. Neither the name of the author nor the names of any co-contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
30 * THE POSSIBILITY OF SUCH DAMAGE.
31 *
32 * $FreeBSD: releng/7.3/sys/dev/usb/usb_ethersubr.h 165901 2007-01-08 23:21:06Z alfred $
33 */
34
35 #ifndef _USB_ETHERSUBR_H_
36 #define _USB_ETHERSUBR_H_
37
38 #include <sys/bus.h>
39 #include <sys/module.h>
40
41 #include <dev/usb/usbdi.h>
42
43 #define UE_TX_LIST_CNT 1
44 #define UE_RX_LIST_CNT 1
45 #define UE_BUFSZ 1536
46
47 struct usb_qdat {
48 struct ifnet *ifp;
49 void (*if_rxstart) (struct ifnet *);
50 };
51
52 struct ue_chain {
53 void *ue_sc;
54 usbd_xfer_handle ue_xfer;
55 char *ue_buf;
56 struct mbuf *ue_mbuf;
57 int ue_idx;
58 usbd_status ue_status;
59 };
60
61 struct ue_cdata {
62 struct ue_chain ue_tx_chain[UE_TX_LIST_CNT];
63 struct ue_chain ue_rx_chain[UE_RX_LIST_CNT];
64 void *ue_ibuf;
65 int ue_tx_prod;
66 int ue_tx_cons;
67 int ue_tx_cnt;
68 int ue_rx_prod;
69 };
70
71 void usb_register_netisr (void);
72 void usb_ether_input (struct mbuf *);
73 void usb_tx_done (struct mbuf *);
74 struct mbuf *usb_ether_newbuf (void);
75 int usb_ether_rx_list_init (void *, struct ue_cdata *,
76 usbd_device_handle);
77 int usb_ether_tx_list_init (void *, struct ue_cdata *,
78 usbd_device_handle);
79 void usb_ether_rx_list_free (struct ue_cdata *);
80 void usb_ether_tx_list_free (struct ue_cdata *);
81
82 struct usb_taskqueue {
83 int dummy;
84 };
85
86 void usb_ether_task_init(device_t, int, struct usb_taskqueue *);
87 void usb_ether_task_enqueue(struct usb_taskqueue *, struct task *);
88 void usb_ether_task_drain(struct usb_taskqueue *, struct task *);
89 void usb_ether_task_destroy(struct usb_taskqueue *);
90
91 #endif /* _USB_ETHERSUBR_H_ */
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