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/*
All files except if stated otherwise in the begining of the file
are under the ISC license:
----------------------------------------------------------------------
Copyright (c) 2010-2012 Design Art Networks Ltd.
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef __DANIPC_H__
#define __DANIPC_H__
#include <linux/netdevice.h>
#include <linux/ioctl.h>
#include <linux/mutex.h>
#include <linux/timer.h>
#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/interrupt.h>
#include <linux/danipc_ioctl.h>
#define RESOURCE_NUM 3
#define IPC_BUFS_RES 0
#define AGENT_TABLE_RES 1
#define KRAIT_IPC_MUX_RES 2
/* Network device private data */
struct danipc_priv {
struct tasklet_struct rx_task;
struct timer_list timer;
struct mutex lock;
resource_size_t res_start[RESOURCE_NUM];
resource_size_t res_len[RESOURCE_NUM];
unsigned irq;
};
struct delayed_skb {
struct list_head list;
struct sk_buff *skb;
};
/* Connection information. */
struct danipc_pair {
unsigned prio;
danipc_addr_t dst;
danipc_addr_t src;
};
#define HADDR_CB_OFFSET 40
#define COOKIE_BASE 0xE000 /* EtherType */
#define PRIO_SHIFT 4
#define PRIO_MASK (((1 << PRIO_SHIFT)) - 1)
#define COOKIE_TO_AGENTID(cookie) ((cookie - COOKIE_BASE) >> PRIO_SHIFT)
#define COOKIE_TO_PRIO(cookie) ((cookie - COOKIE_BASE) & PRIO_MASK)
#define AGENTID_TO_COOKIE(agentid, pri) (COOKIE_BASE + \
((agentid) << PRIO_SHIFT) + \
(pri))
extern int danipc_ll_init(struct danipc_priv *priv);
extern void danipc_ll_cleanup(void);
extern void danipc_poll(struct net_device *dev);
extern int danipc_ioctl(struct net_device *dev, struct ifreq *ifr,
int cmd);
extern int danipc_hard_start_xmit(struct sk_buff *skb,
struct net_device *dev);
extern void danipc_init_irq(struct net_device *dev,
struct danipc_priv *priv);
extern irqreturn_t danipc_interrupt(int irq, void *data);
extern void high_prio_rx(unsigned long data);
extern void send_pkt(struct sk_buff *skb);
extern struct list_head delayed_skbs;
extern spinlock_t skbs_lock;
extern struct work_struct delayed_skbs_work;
extern struct net_device *danipc_dev;
extern int danipc_change_mtu(struct net_device *dev, int new_mtu);
#endif /* __DANIPC_H__ */
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