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net: cdc_ncm: export shared symbols and definitions
Move symbols and definitons which can be shared with a MBIM driver in a new header. Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
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Bjørn Mork
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David S. Miller
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Oct 23, 2012
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| @@ -0,0 +1,124 @@ | ||
| /* | ||
| * Copyright (C) ST-Ericsson 2010-2012 | ||
| * Contact: Alexey Orishko <alexey.orishko@stericsson.com> | ||
| * Original author: Hans Petter Selasky <hans.petter.selasky@stericsson.com> | ||
| * | ||
| * USB Host Driver for Network Control Model (NCM) | ||
| * http://www.usb.org/developers/devclass_docs/NCM10.zip | ||
| * | ||
| * The NCM encoding, decoding and initialization logic | ||
| * derives from FreeBSD 8.x. if_cdce.c and if_cdcereg.h | ||
| * | ||
| * This software is available to you under a choice of one of two | ||
| * licenses. You may choose this file to be licensed under the terms | ||
| * of the GNU General Public License (GPL) Version 2 or the 2-clause | ||
| * BSD license listed below: | ||
| * | ||
| * Redistribution and use in source and binary forms, with or without | ||
| * modification, are permitted provided that the following conditions | ||
| * are met: | ||
| * 1. Redistributions of source code must retain the above copyright | ||
| * notice, this list of conditions and the following disclaimer. | ||
| * 2. Redistributions in binary form must reproduce the above copyright | ||
| * notice, this list of conditions and the following disclaimer in the | ||
| * documentation and/or other materials provided with the distribution. | ||
| * | ||
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND | ||
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
| * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | ||
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | ||
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | ||
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | ||
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | ||
| * SUCH DAMAGE. | ||
| */ | ||
|
|
||
| /* CDC NCM subclass 3.2.1 */ | ||
| #define USB_CDC_NCM_NDP16_LENGTH_MIN 0x10 | ||
|
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||
| /* Maximum NTB length */ | ||
| #define CDC_NCM_NTB_MAX_SIZE_TX 32768 /* bytes */ | ||
| #define CDC_NCM_NTB_MAX_SIZE_RX 32768 /* bytes */ | ||
|
|
||
| /* Minimum value for MaxDatagramSize, ch. 6.2.9 */ | ||
| #define CDC_NCM_MIN_DATAGRAM_SIZE 1514 /* bytes */ | ||
|
|
||
| /* Minimum value for MaxDatagramSize, ch. 8.1.3 */ | ||
| #define CDC_MBIM_MIN_DATAGRAM_SIZE 2048 /* bytes */ | ||
|
|
||
| #define CDC_NCM_MIN_TX_PKT 512 /* bytes */ | ||
|
|
||
| /* Default value for MaxDatagramSize */ | ||
| #define CDC_NCM_MAX_DATAGRAM_SIZE 8192 /* bytes */ | ||
|
|
||
| /* | ||
| * Maximum amount of datagrams in NCM Datagram Pointer Table, not counting | ||
| * the last NULL entry. | ||
| */ | ||
| #define CDC_NCM_DPT_DATAGRAMS_MAX 40 | ||
|
|
||
| /* Restart the timer, if amount of datagrams is less than given value */ | ||
| #define CDC_NCM_RESTART_TIMER_DATAGRAM_CNT 3 | ||
| #define CDC_NCM_TIMER_PENDING_CNT 2 | ||
| #define CDC_NCM_TIMER_INTERVAL (400UL * NSEC_PER_USEC) | ||
|
|
||
| /* The following macro defines the minimum header space */ | ||
| #define CDC_NCM_MIN_HDR_SIZE \ | ||
| (sizeof(struct usb_cdc_ncm_nth16) + sizeof(struct usb_cdc_ncm_ndp16) + \ | ||
| (CDC_NCM_DPT_DATAGRAMS_MAX + 1) * sizeof(struct usb_cdc_ncm_dpe16)) | ||
|
|
||
| #define CDC_NCM_NDP_SIZE \ | ||
| (sizeof(struct usb_cdc_ncm_ndp16) + \ | ||
| (CDC_NCM_DPT_DATAGRAMS_MAX + 1) * sizeof(struct usb_cdc_ncm_dpe16)) | ||
|
|
||
| struct cdc_ncm_ctx { | ||
| struct usb_cdc_ncm_ntb_parameters ncm_parm; | ||
| struct hrtimer tx_timer; | ||
| struct tasklet_struct bh; | ||
|
|
||
| const struct usb_cdc_ncm_desc *func_desc; | ||
| const struct usb_cdc_mbim_desc *mbim_desc; | ||
| const struct usb_cdc_header_desc *header_desc; | ||
| const struct usb_cdc_union_desc *union_desc; | ||
| const struct usb_cdc_ether_desc *ether_desc; | ||
|
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||
| struct net_device *netdev; | ||
| struct usb_device *udev; | ||
| struct usb_host_endpoint *in_ep; | ||
| struct usb_host_endpoint *out_ep; | ||
| struct usb_host_endpoint *status_ep; | ||
| struct usb_interface *intf; | ||
| struct usb_interface *control; | ||
| struct usb_interface *data; | ||
|
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| struct sk_buff *tx_curr_skb; | ||
| struct sk_buff *tx_rem_skb; | ||
| __le32 tx_rem_sign; | ||
|
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| spinlock_t mtx; | ||
| atomic_t stop; | ||
|
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| u32 tx_timer_pending; | ||
| u32 tx_curr_frame_num; | ||
| u32 rx_speed; | ||
| u32 tx_speed; | ||
| u32 rx_max; | ||
| u32 tx_max; | ||
| u32 max_datagram_size; | ||
| u16 tx_max_datagrams; | ||
| u16 tx_remainder; | ||
| u16 tx_modulus; | ||
| u16 tx_ndp_modulus; | ||
| u16 tx_seq; | ||
| u16 rx_seq; | ||
| u16 connected; | ||
| }; | ||
|
|
||
| extern int cdc_ncm_bind_common(struct usbnet *dev, struct usb_interface *intf, u8 data_altsetting); | ||
| extern void cdc_ncm_unbind(struct usbnet *dev, struct usb_interface *intf); | ||
| extern struct sk_buff *cdc_ncm_fill_tx_frame(struct cdc_ncm_ctx *ctx, struct sk_buff *skb, __le32 sign); | ||
| extern int cdc_ncm_rx_verify_nth16(struct cdc_ncm_ctx *ctx, struct sk_buff *skb_in); | ||
| extern int cdc_ncm_rx_verify_ndp16(struct sk_buff *skb_in, int ndpoffset); |