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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_LOWLEVEL_H__
#define __DANIPC_LOWLEVEL_H__
#include <linux/irqflags.h>
#include <linux/spinlock.h>
#include <linux/atomic.h>
#define IPC_DUMMY_ADDR 0
#define PLATFORM_MAX_NUM_OF_NODES 16
#define IPC_BUF_SIZE ((2 * IPC_BUF_COUNT_MAX) * \
IPC_BUF_SIZE_MAX)
extern uint8_t __iomem *ipc_buffers;
extern uint32_t ipc_regs_phys[];
extern unsigned ipc_regs_len[];
extern uintptr_t ipc_regs[];
extern uint32_t ipc_shared_mem_sizes[];
extern struct agent_entry __iomem *agent_table;
#define LOCAL_IPC_ID 8 /*CHIP_IPC_KRAIT_ADDR*/
struct ipc_to_virt_map {
/* Physical address of the FIFO data buffer *without* bit 31 set. */
uint32_t paddr;
/* Virtual address of the FIFO data buffer. */
void __iomem *vaddr;
/* How many skbs destined for this core are on delayed_skb list */
atomic_t pending_skbs;
};
extern uint32_t virt_to_ipc(const int cpuid, const unsigned prio, void *v_addr);
extern void *ipc_to_virt(const int cpuid, const unsigned prio,
const uint32_t raw_ipc_addr);
#define __IPC_AGENT_ID(cpuid, lid) \
(((cpuid&(PLATFORM_MAX_NUM_OF_NODES-1)) << 4) + \
(0x0f & (lid)))
extern unsigned ipc_init(void);
extern void ipc_trns_fifo_buf_init(uint8_t cpuid);
extern void ipc_route_table_init(struct ipc_trns_func const *ptr);
extern char *ipc_trns_fifo_buf_alloc(uint8_t dest_aid,
enum ipc_trns_prio pri);
extern void ipc_trns_fifo_buf_free(char *ptr, uint8_t dest_aid,
enum ipc_trns_prio pri);
extern int32_t ipc_trns_fifo_buf_send(char *ptr, uint8_t destId,
enum ipc_trns_prio pri);
extern char *ipc_trns_fifo2eth_buf_alloc(uint8_t dest_aid,
enum ipc_trns_prio pri);
extern void ipc_trns_fifo2eth_buf_free(char *ptr, uint8_t dest_aid,
enum ipc_trns_prio pri);
extern int32_t ipc_trns_fifo2eth_buf_send(char *ptr, uint8_t destId,
enum ipc_trns_prio pri);
extern char *ipc_trns_fifo_buf_read(enum ipc_trns_prio pri);
extern void ipc_agent_table_clean(void);
extern uint8_t ipc_get_own_node(void);
extern struct ipc_trns_func const *get_trns_funcs(uint8_t cpuid);
extern void handle_incoming_packet(char *const packet,
uint8_t cpuid,
enum ipc_trns_prio pri);
extern struct ipc_to_virt_map ipc_to_virt_map[PLATFORM_MAX_NUM_OF_NODES][2];
#endif /* __DANIPC_LOWLEVEL_H__ */
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