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/*
* linux/drivers/mmc/host/sdio_hal.h - Secure Digital Host Controller Interface driver
*
* Copyright (C) 2005-2008 Pierre Ossman, 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 as published by
* the Free Software Foundation; either version 2 of the License, or (at
* your option) any later version.
*/
#ifndef __IPC_SPI_H
#define __IPC_SPI_H
#include <linux/kfifo.h>
#include <linux/miscdevice.h>
#include <linux/wakelock.h>
#include <mach/modem_interface.h>
//#define SETUP_PACKET_SIZE (128)
#define MAX_RECEIVER_SIZE (8*1024)
//#define SETUP_MAGIC 0x1a2b
#define DATA_MAGIC 0x3c4d
#define ACK_MAGIC 0x5e6f
//#define SETUP_ACK_MAGIC 0x789a
#define DATA_ACK_MAGIC 0x9abc
#define DUMMY_MAGIC 0x5a5a
#define CP2AP_NOIRQ 0x0
#define CP2AP_FALLING 0x1
#define CP2AP_RASING 0x2
//#define REMOTE_ALIVE_STATUS 0x1
//#define REMOTE_ASSERT_STATUS 0x2
typedef enum {
TYPE_ACK = 0x1,
TYPE_NAK,
TYPE_NAKALL, //if receive this ack , cancel the data you want to resend
TYPE_DATA,
TYPE_MAX
}packet_type;
struct ack_packet {
u16 magic;
u16 checksum;
u16 type;
u16 dummy;
u32 seq_begin;
u32 seq_end;
};
// data packet type like below
struct data_packet_header {
u16 magic;
u16 checksum;
union {
struct ack_packet ack;
};
u32 seqnum;
u32 len;
};
enum ipc_status {
IDLE_STATUS,
ACK_STATUS,
NAK_STATUS,
NAKALL_STATUS,
MAX_STATUS
};
struct frame_list {
struct list_head frame_list_head;
struct mutex list_mutex;
u32 counter;
};
struct ipc_transfer_frame {
u8* buf_ptr;
u32 buf_size;
u16 pos;
u16 flag;
u32 status;
u32 seq;
struct list_head link;
};
struct ipc_transfer
{
struct mutex transfer_mutex;
struct list_head frame_fifo;
struct ipc_transfer_frame* cur_frame_ptr;
u32 counter;
};
struct timer_info {
unsigned long long time;
u32 status;
};
struct ipc_spi_dev {
bool bneedrcv;
bool ipc_enable;
bool bneedread;
bool bneedsend;
u16 rx_ctl; // gpio control no irq: 0 , falling: 1, rasing: 2
u16 rwctrl; /* read write controlled by mux */
u16 rx_status; // rx status
u32 rx_seqnum; /* received num */
u32 tx_seqnum;
u32 remote_status;
struct frame_list tx_free_lst;
struct ipc_transfer tx_transfer;
struct frame_list rx_free_lst;
struct frame_list rx_recv_lst;
struct ipc_transfer_frame* rx_curframe;
struct ipc_transfer_frame *tx_curframe;
wait_queue_head_t wait;
wait_queue_head_t rx_read_wait;
wait_queue_head_t tx_frame_wait; // tx frame wait
struct task_struct *task;
struct spi_device *spi;
struct miscdevice miscdev;
struct wake_lock wake_lock;
struct modemsts_chg modemsts;
#ifdef CONFIG_PM
bool bsuspend;
#endif
u32 irq_num; /* use for debug cp side irq num */
u32 task_count; /* use for debug task run count*/
u32 task_status; /* use for debug record the status of task */
u32 rwnum;
u32 tx_irqennum; /* use for debug enable gpio num */
u32 tx_irqdisnum; /* usefor debug disable gpio num */
u32 ap_infocnt;
struct timer_info cp2ap[100];
struct timer_info ap_info[100];
};
#endif /* __SDHCI_H */
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