/*****************************************************************************
 *
 * Filename:
 * ---------
 *   ccci_layer.h
 *
 * Project:
 * --------
 *   ALPS
 *
 * Description:
 * ------------
 *   MT65XX CCCI header file
 *
 ****************************************************************************/

#ifndef __CCCI_LAYER_H__
#define __CCCI_LAYER_H__

#include <linux/kfifo.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/spinlock.h>
#include <linux/mm.h>
#include <linux/kfifo.h>
#include <linux/io.h>
#include <linux/atomic.h>
#include <linux/rwlock.h>
#include <linux/bitops.h>
#include <linux/sched.h>
#include <linux/wakelock.h>
#include <ccci_ch.h>
#include <ccif.h>

#define CCCI_DEV_NAME "ccci"
/* #define CCCI_DEV_MAJOR 184 move to platform.h */
#define CCCI_SYSFS_INFO "info"
#define CCCI_FIFO_MAX_LEN 8	/* 8 = max of physical channel */

/* --------------logical channel attribute define-------------------*/
#define L_CH_ATTR_TX            (1<<0)	/*  This logic channel is a TX channel */
#define L_CH_ATTR_PRVLG0        (1<<1)	/*  This logic channel can send data even if runtime data not send */
#define L_CH_ATTR_PRVLG1        (1<<2)	/*  This logic channel can send data even if modem not boot ready */
#define L_CH_ATTR_PRVLG2        (1<<3)	/*  This logic channel can send data even if modem has exception */
#define L_CH_ATTR_DUMMY_WRITE   (1<<4)	/*  This logic channel using dummy write if modem has exception */
#define L_CH_ATTR_OPEN_CLEAR    (1<<5)	/*  Clear all fifo data when open */
#define L_CH_DROP_TOLERATED     (1<<6)  /*  Drop message is tolerated for this channel */
#define L_CH_MUST_RDY_FOR_BOOT  (1<<7)  /*  During modem boot up, the channel must be ready */
/*  Not set runtime data to MD */
/* #define MD_BOOT_STAGE_0      (1) */
/*  Has set runtime data to MD, but MD not ready yet */
/* #define MD_BOOT_STAGE_1      (2) */
/*  Modem is ready */
/* #define MD_BOOT_STAGE_2      (3) */
/* --------------TX transfer function define-------------------*/
#define CCCI_INIT_MAILBOX(buff, mailbox_id) \
	do {    \
		((struct ccci_msg_t *)buff)->magic = 0xFFFFFFFF; \
		((struct ccci_msg_t *)buff)->id = (mailbox_id);  \
		((struct ccci_msg_t *)buff)->channel = CCCI_INVALID_CH_ID;  \
		((struct ccci_msg_t *)buff)->reserved = 0;    \
	} while (0)
/* initialize a CCCI stream buffer */
#define CCCI_INIT_STREAM(buff, stream_addr, stream_len)\
	do {    \
		((struct ccci_msg_t *)buff)->addr = (stream_addr);\
		((struct ccci_msg_t *)buff)->len = (stream_len);\
		((struct ccci_msg_t *)buff)->channel = CCCI_INVALID_CH_ID;\
		((struct ccci_msg_t *)buff)->reserved = 0;\
	} while (0)
/* -----------------data structure define-------------------------*/
/* CCCI API return value */
enum CCCI_RETURNVAL_T {
	CCCI_SUCCESS = 0,
	CCCI_FAIL = -EIO,
	CCCI_IN_USE = -EEXIST,
	CCCI_NOT_OWNER = -EPERM,
	CCCI_INVALID_PARAM = -EINVAL,
	CCCI_NO_PHY_CHANNEL = -ENXIO,
	CCCI_IN_INTERRUPT = -EACCES,
	CCCI_IN_IRQ = -EINTR,
	CCCI_MD_NOT_READY = -EBUSY,
	CCCI_MD_IN_RESET = -ESRCH,
	CCCI_RESET_NOT_READY = -ENODEV
};

/* CCCI mailbox channel structure */
struct CCCI_MAILBOX_T {
	unsigned int magic;	/* 0xFFFFFFFF */
	unsigned int id;
};

/* CCCI stream channel structure */
struct CCCI_STREAM_T {
	unsigned int addr;
	unsigned int len;
};

/* CCCI channel buffer structure */
struct CCCI_BUFF_T {
	unsigned int data[2];
	unsigned int channel;
	unsigned int reserved;
};

/* CCCI callback function prototype */
typedef void (*CCCI_CALLBACK) (struct CCCI_BUFF_T *buff, void *private_data);
enum CCCI_STATE_T {
	CCCI_ENABLED = 0x0,
	CCCI_RUNNING = 0x1,

};
struct CCCI_LOG_T {
	unsigned long sec;
	unsigned long nanosec;
	struct CCCI_BUFF_T buff;
	short rx;
};

/*  CCCI mailbox channel structure */
struct ccci_mail_box_t {
	unsigned int magic;	/*  0xFFFFFFFF */
	unsigned int id;
};
/*  CCCI stream channel structure */
struct ccci_stream_msg_t {
	unsigned int addr;
	unsigned int len;
};

/*  CCCI common channel structure */
struct ccci_common_msg_t {
	unsigned int data[2];
};

struct ccci_msg_t {
	union {
		unsigned int magic;	/*  For mail box magic number */
		unsigned int addr;	/*  For stream start addr */
		unsigned int data0;	/*  For ccci common data[0] */
	};
	union {
		unsigned int id;	/*  For mail box message id */
		unsigned int len;	/*  For stream len */
		unsigned int data1;	/*  For ccci common data[1] */
	};
	unsigned int channel;
	unsigned int reserved;
};

struct DEBUG_INFO_T {
	unsigned int type;
	char *name;
	unsigned int more_info;
	union {
		struct {

			char file_name[30];
			int line_num;
			unsigned int parameters[3];
		} assert;
		struct {
			int err_code1;
			int err_code2;

		} fatal_error;
		struct ccci_msg_t data;
		struct {
			unsigned char execution_unit[9];	/*  8+1 */
			char file_name[30];
			int line_num;
			unsigned int parameters[3];
		} dsp_assert;
		struct {
			unsigned char execution_unit[9];
			unsigned int code1;
		} dsp_exception;
		struct {
			unsigned char execution_unit[9];
			unsigned int err_code[2];
		} dsp_fatal_err;
	};
	int *ext_mem;
	size_t ext_size;
	int *md_image;
	size_t md_size;
	void *platform_data;
	void (*platform_call)(void *data);
};

struct logic_channel_info_t {
	unsigned int m_ch_id;
	unsigned int m_attrs;
	struct kfifo m_kfifo;
	unsigned int m_kfifo_ready;
	char *m_ch_name;
	char *m_owner_name;
	void *m_owner;
	void (*m_call_back)(void *);
	spinlock_t m_lock;
	unsigned int m_register;
	int m_md_id;
};

struct logic_channel_static_info_t {
	unsigned int m_ch_id;
	unsigned int m_kfifo_size;
	char *m_ch_name;
	unsigned int m_attrs;
};

struct logic_dispatch_ctl_block_t {
	struct logic_channel_info_t m_logic_ch_table[CCCI_MAX_CH_NUM];
	struct ccif_t *m_ccif;
	struct tasklet_struct m_dispatch_tasklet;
	unsigned char m_has_pending_data;
	unsigned char m_freezed;
	unsigned char m_running;
	unsigned int m_md_id;
	struct wake_lock m_wakeup_wake_lock;
	char m_wakelock_name[16];
	void (*m_send_notify_cb)(int, unsigned int);
	u64 m_last_send_ref_jiffies;
	unsigned long m_status_flag;
	spinlock_t m_lock;
};

/* -----------------function define-------------------------*/
int register_to_logic_ch(int md_id, int ch, void (*func) (void *), void *owner);
int un_register_to_logic_ch(int md_id, int ch);
int logic_layer_reset(int);
int cal_ring_buffer_free_space(int read_idx, int write_idx, int ring_buf_len);
int cal_ring_buffer_valid_data_size(int read_idx, int write_idx,
				    int ring_buf_len);
int ccci_logic_ctlb_init(int);
void ccci_logic_ctlb_deinit(int);
int get_logic_ch_data(struct logic_channel_info_t *ch_info, struct ccci_msg_t *msg);
int get_logic_ch_data_len(struct logic_channel_info_t *ch_info);
struct logic_channel_info_t *get_logic_ch_info(int md_id, int ch_id);
void freeze_logic_layer_tx(int);
void freeze_all_logic_layer(int);
/* void set_curr_md_state(int md_id, int state); */
void *get_dispatch_ctl_block(int md_sys);
int ccci_message_send(int md_id, struct ccci_msg_t *msg, int retry_en);
void ccci_system_message(int md_id, unsigned int msg, unsigned int resv);
void ccci_disable_md_intr(int md_id);
void ccci_enable_md_intr(int md_id);
void ccci_hal_reset(int md_id);
void ccci_hal_irq_register(int md_id);
void set_md_sys_max_num(unsigned int max_num);
void update_active_md_sys_state(int md_id, int active);
void set_md_enable(int md_id, int en);
int ccci_logic_layer_init(int);
void ccci_logic_layer_exit(int);
int ccci_write_runtime_data(int md_id, unsigned char buf[], int len);

extern int __init ccif_module_init(void);
extern void __exit ccif_module_exit(void);

#endif	/*  __CCCI_LAYER_H__ */