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/* Copyright (c) 2013-2016, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef _RNDIS_IPA_H_
#define _RNDIS_IPA_H_
#include <linux/ipa.h>
/*
* @priv: private data given upon ipa_connect
* @evt: event enum, should be IPA_WRITE_DONE
* @data: for tx path the data field is the sent socket buffer.
*/
typedef void (*ipa_callback)(void *priv,
enum ipa_dp_evt_type evt,
unsigned long data);
/*
* struct ipa_usb_init_params - parameters for driver initialization API
*
* @device_ready_notify: callback supplied by USB core driver
* This callback shall be called by the Netdev once the device
* is ready to recieve data from tethered PC.
* @ipa_rx_notify: The network driver will set this callback (out parameter).
* this callback shall be supplied for ipa_connect upon pipe
* connection (USB->IPA), once IPA driver receive data packets
* from USB pipe destined for Apps this callback will be called.
* @ipa_tx_notify: The network driver will set this callback (out parameter).
* this callback shall be supplied for ipa_connect upon pipe
* connection (IPA->USB), once IPA driver send packets destined
* for USB, IPA BAM will notify for Tx-complete.
* @host_ethaddr: host Ethernet address in network order
* @device_ethaddr: device Ethernet address in network order
* @private: The network driver will set this pointer (out parameter).
* This pointer will hold the network device for later interaction
* with between USB driver and the network driver.
* @skip_ep_cfg: boolean field that determines if Apps-processor
* should or should not configure this end-point.
*/
struct ipa_usb_init_params {
void (*device_ready_notify)(void);
ipa_callback ipa_rx_notify;
ipa_callback ipa_tx_notify;
u8 host_ethaddr[ETH_ALEN];
u8 device_ethaddr[ETH_ALEN];
void *private;
bool skip_ep_cfg;
};
#ifdef CONFIG_RNDIS_IPA
int rndis_ipa_init(struct ipa_usb_init_params *params);
int rndis_ipa_pipe_connect_notify(u32 usb_to_ipa_hdl,
u32 ipa_to_usb_hdl,
u32 max_xfer_size_bytes_to_dev,
u32 max_packet_number_to_dev,
u32 max_xfer_size_bytes_to_host,
void *private);
int rndis_ipa_pipe_disconnect_notify(void *private);
void rndis_ipa_cleanup(void *private);
#else /* CONFIG_RNDIS_IPA*/
static inline int rndis_ipa_init(struct ipa_usb_init_params *params)
{
return -ENOMEM;
}
static inline int rndis_ipa_pipe_connect_notify(u32 usb_to_ipa_hdl,
u32 ipa_to_usb_hdl,
u32 max_xfer_size_bytes_to_dev,
u32 max_packet_number_to_dev,
u32 max_xfer_size_bytes_to_host,
void *private)
{
return -ENOMEM;
}
static inline int rndis_ipa_pipe_disconnect_notify(void *private)
{
return -ENOMEM;
}
static inline void rndis_ipa_cleanup(void *private)
{
}
#endif /* CONFIG_RNDIS_IPA */
#endif /* _RNDIS_IPA_H_ */
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