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#ifndef _EEMCS_CHAR_H
#define _EEMCS_CHAR_H
#include <asm/ioctl.h>
#include <asm/atomic.h>
#include <linux/skbuff.h>
#include <linux/wait.h>
#include "eemcs_ccci.h"
#include "eemcs_kal.h"
#define EEMCS_DEV_MAJOR 183
#define EEMCS_DEV_NAME "eemcs"
#define EEMCS_CDEV_MAX_NUM (END_OF_NORMAL_PORT-START_OF_NORMAL_PORT)
#define EEMCS_DEV_NAME_LEN 30
typedef enum _CCCI_CDEV_STATE{
CDEV_CLOSE = 0,
CDEV_OPEN = 1
}CCCI_CDEV_STATE;
typedef struct
{
struct sk_buff *remaining_rx_skb; /* the pointer for streaming read */
atomic_t remaining_rx_cnt;
KAL_UINT32 remaining_len;
}stream_buff_t;
typedef struct
{
KAL_CHAR cdev_name[32];
KAL_UINT8 eemcs_port_id;
ccci_ch_set ccci_ch;
atomic_t cdev_state; /*0: close 1:open*/
/* rx informaiont */
/* 1. [eemcs_cdev_rx_callback] enqueue rx_skb_list
* 2. [eemcs_cdev_rx_callback] rx_pkt_cnt ++
* 3. [eemcs_cdev_rx_callback] wake_up rx_waitq
* 4. [emcs_cdev_read] (wait_event_interruptible rx_waitq)
* 5. [emcs_cdev_read] rx_pkt_cnt --
* 6. [emcs_cdev_read] dequeue rx_skb_list
*/
wait_queue_head_t rx_waitq;
struct sk_buff_head rx_skb_list;
atomic_t rx_pkt_cnt;
atomic_t rx_pkt_drop_cnt; /* happen when user memory is not enough */
stream_buff_t buff;
/* tx informaiont */
wait_queue_head_t tx_waitq;
atomic_t tx_pkt_cnt;
}eemcs_cdev_node_t;
typedef struct
{
struct class *dev_class; /* class_create/class_destroy/device_create/device_destroy */
struct cdev *eemcs_chrdev; /* cdev_alloc/cdev_del/cdev_init/cdev_add */
eemcs_cdev_node_t cdev_node[EEMCS_CDEV_MAX_NUM];
KAL_UINT32 expt_cb_id; /* exception callback function ID */
}eemcs_cdev_inst_t;
/* EMCS opeartion Error. */
// I for Internal use, O for device status, should cover by error handling..
#define EMCS_ERR_NONE 0
#define EMCS_ERR_TIMEOUT 20 /*[O] wait Interrupt or device read fail*/
#define EMCS_ERR_BT_STATUS 21 /*[I] invalid MD Status.*/
#define EMCS_ERR_CMDCRC 22 /*[O] invalid command*/
#define EMCS_ERR_LOAD_BIN 23 /*[O] MD BIN file open fail*/
#define EMCS_ERR_MSG_OVERFLOW 24 /*[O] receive message to long*/
#define EMCS_ERR_PKT_OVERFLOW 25 /*[I] send package big the tx limitaion*/
#define EMCS_ERR_INVALID_PARA 26 /*[I] emcs driver parameter check fail*/
#define EMCS_ERR_GET_OWNER 27 /*[O] get device ownership fail*/
#define EMCS_ERR_NOMEM 28
#define EMCS_ERR_NOINIT 29
#define EMCS_ERR_INVAL_PARA 30
#define EMCS_ERR_TX_FAIL 31
#define EMCS_ERR_RX_FAIL 32
#define EMCS_ERROR_BUSY 33
#define EMCS_ERROR_NODEV 34
#define EMCS_ERR_RESET_MD 35
#if defined(_EEMCS_CDEV_LB_UT_) || defined(_EEMCS_FS_UT)
KAL_UINT32 cdevut_register_callback(CCCI_CHANNEL_T chn, EEMCS_CCCI_CALLBACK func_ptr , KAL_UINT32 private_data) ;
KAL_UINT32 cdevut_unregister_callback(CCCI_CHANNEL_T chn);
inline KAL_INT32 cdevut_UL_write_skb_to_swq(CCCI_CHANNEL_T chn, struct sk_buff *skb);
inline KAL_UINT32 cdevut_UL_write_room_alloc(CCCI_CHANNEL_T chn);
inline KAL_UINT32 cdevut_UL_write_room_release(CCCI_CHANNEL_T chn);
KAL_UINT32 cdevut_UL_write_wait(CCCI_CHANNEL_T chn);
typedef void (*EEMCS_CCCI_EXCEPTION_IND_CALLBACK)(KAL_UINT32 msg_id);
KAL_UINT32 cdevut_register_expt_callback(EEMCS_CCCI_EXCEPTION_IND_CALLBACK func_ptr);
KAL_UINT32 cdevut_unregister_expt_callback(KAL_UINT32 cb_id);
void cdevut_turn_off_dlq_by_port(KAL_UINT32 port_idx);
void cdevut_turn_on_dlq_by_port(KAL_UINT32 port_idx);
#define ccci_cdev_register(ch_num,cb,para) cdevut_register_callback(ch_num,cb,para)
#define ccci_cdev_unregister(ch_num) cdevut_unregister_callback(ch_num)
#define ccci_cdev_write_desc_to_q(ch_num,desc_p) cdevut_UL_write_skb_to_swq(ch_num, desc_p)
#define ccci_cdev_write_space_alloc(ch_num) cdevut_UL_write_room_alloc(ch_num)
#define ccci_cdev_write_space_release(ch_num) cdevut_UL_write_room_release(ch_num)
#define ccci_cdev_write_wait(ch_num) cdevut_UL_write_wait(ch_num)
#define ccci_cdev_register_expt_callback(cb) cdevut_register_expt_callback(cb)
#define ccci_cdev_unregister_expt_callback(cb) cdevut_unregister_expt_callback(cb)
#define ccci_cdev_turn_off_dl_q(port_idx) cdevut_turn_off_dlq_by_port(port_idx)
#define ccci_cdev_turn_on_dl_q(port_idx) cdevut_turn_on_dlq_by_port(port_idx)
#else
#define ccci_cdev_register(ch_num,cb,para) eemcs_ccci_register_callback(ch_num,cb,para)
#define ccci_cdev_unregister(ch_num) eemcs_ccci_unregister_callback(ch_num)
#define ccci_cdev_write_desc_to_q(ch_num,desc_p) eemcs_ccci_UL_write_skb_to_swq(ch_num, desc_p)
#define ccci_cdev_write_space_alloc(ch_num) eemcs_ccci_UL_write_room_alloc(ch_num)
#define ccci_cdev_write_space_release(ch_num) eemcs_ccci_UL_write_room_release(ch_num)
#define ccci_cdev_write_wait(ch_num) eemcs_ccci_UL_write_wait(ch_num)
#define ccci_cdev_register_expt_callback(cb) eemcs_register_expt_callback(cb)
#define ccci_cdev_unregister_expt_callback(cb) eemcs_unregister_expt_callback(cb)
#define ccci_cdev_turn_off_dl_q(port_idx) eemcs_ccci_turn_off_dlq_by_port(port_idx)
#define ccci_cdev_turn_on_dl_q(port_idx) eemcs_ccci_turn_on_dlq_by_port(port_idx)
#endif
#ifdef CCCI_SDIO_HEAD
#define CCCI_CDEV_HEADER_ROOM (sizeof(SDIO_H)+sizeof(CCCI_BUFF_T))
#else
#define CCCI_CDEV_HEADER_ROOM (sizeof(CCCI_BUFF_T))
#endif
//#define ccci_cdev_mem_alloc(sz) dev_alloc_skb(sz)
#define ccci_cdev_mem_alloc(sz, flag) __dev_alloc_skb(sz, flag)
KAL_INT32 eemcs_char_mod_init(void);
void eemcs_char_exit(void);
void eemcs_fs_ut_callback(struct sk_buff *, KAL_UINT32);
bool eemcs_cdev_rst_port_closed(void);
void eemcs_cdev_reset(void);
#endif //_EEMCS_CHAR_H
/*********************************************************************
[SOP to add a char device node] 20130525 Ian
[EEMCS] mediatek/kernel/source/kernel/driver/eemcs
1. add channel in eemcs_ccci.h CCCI_CHANNEL_T
2. add port in eemcs_ccci.h CCCI_PORT
3. update ccci_port_info in eemcs_ccci.c
4. update ccci_cdev_name in eemcs_char.c
5. update exception port information ccci_expt_port_info in eemcs_expt.c
[eemcs_test] mediatek/source/external/eemcs_test
1. add channel in CCCI_CHANNEL_T
2. add port in CCCI_PORT
3. CCCI_CDEV_NUM++
4. update ccci_cdev_name, ccci_cdev_name_select, ccci_expose_cccih
5. modify port_to_tx_cccich function
*********************************************************************/
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