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/**
******************************************************************************
*
* @file sdio.h
*
* @brief sdio driver definitions
*
* Copyright (C) ESWIN 2015-2020
*
******************************************************************************
*/
#ifndef __SDIO_H
#define __SDIO_H
#include "ecrnx_defs.h"
#include "core.h"
#define ESWIN_SDIO_VENDER 0x0296
#define ESWIN_SDIO_DEVICE 0x5347
#define ESWIN_SDIO_BLK_SIZE 512
#define TX_SLOT 0
#define RX_SLOT 1
#define CREDIT_QUEUE_MAX (12)
#define TCN (3*2)
#define TCNE (0)
#define CREDIT_AC0 4//(TCN*4+TCNE) /* BK */
#define CREDIT_AC1 30//(TCN*3+TCNE) /* BE */
#define CREDIT_AC2 4//(TCN*2+TCNE) /* VI */
#define CREDIT_AC3 4//(TCN*1+TCNE) /* VO */
struct sdio_sys_reg {
u8 wakeup; /* 0x0 */
u8 status; /* 0x1 */
u16 chip_id; /* 0x2-0x3 */
u32 modem_id; /* 0x4-0x7 */
u32 sw_id; /* 0x8-0xb */
u32 board_id; /* 0xc-0xf */
} __packed;
struct sdio_status_reg {
struct {
u8 mode;
u8 enable;
u8 latched_status;
u8 status;
} eirq;
u8 txq_status[6];
u8 rxq_status[6];
u32 msg[4];
#define EIRQ_IO_ENABLE (1<<2)
#define EIRQ_EDGE (1<<1)
#define EIRQ_ACTIVE_LO (1<<0)
#define EIRQ_DEV_SLEEP (1<<3)
#define EIRQ_DEV_READY (1<<2)
#define EIRQ_RXQ (1<<1)
#define EIRQ_TXQ (1<<0)
#define TXQ_ERROR (1<<7)
#define TXQ_SLOT_COUNT (0x7F)
#define RXQ_SLOT_COUNT (0x7F)
} __packed;
struct sdio_rx_head_t {
unsigned int next_rx_len;
unsigned short data_len;
unsigned short avl_len;
};
struct sdio_data_t {
unsigned int credit_vif0;
unsigned int credit_vif1;
unsigned int info_wr;
unsigned int info_rd;
};
struct eswin_sdio {
struct eswin * tr;
struct sdio_func *func;
struct sdio_func *func2;
/* work, kthread, ... */
struct delayed_work work;
struct task_struct *kthread;
wait_queue_head_t wait; /* wait queue */
struct task_struct *kthread_unpack;
wait_queue_head_t wait_unpack;
struct {
struct sdio_sys_reg sys;
struct sdio_status_reg status;
} hw;
spinlock_t lock;
struct {
unsigned int head;
unsigned int tail;
unsigned int size;
unsigned int count;
} slot[2];
/* VIF0(AC0~AC3), BCN, CONC, VIF1(AC0~AC3), padding*/
u8 front[CREDIT_QUEUE_MAX];
u8 rear[CREDIT_QUEUE_MAX];
u8 credit_max[CREDIT_QUEUE_MAX];
/*
unsigned long loopback_prev_cnt;
unsigned long loopback_total_cnt;
unsigned long loopback_last_jiffies;
unsigned long loopback_read_usec;
unsigned long loopback_write_usec;
unsigned long loopback_measure_cnt;
*/
//struct eswin_sdio_ops_t *ops;
unsigned int recv_len;
unsigned int recv_num;
// struct dentry *debugfs;
unsigned int credit_vif0;
unsigned int credit_vif1;
struct sdio_data_t sdio_info;
unsigned int slave_avl_buf;
atomic_t slave_buf_suspend;
unsigned int curr_tx_size;
unsigned int next_rx_size;
// struct sk_buff *skb_tx_last;
struct sk_buff_head skb_rx_list;
//struct sk_buff_head *skb_rx_unpack_list;
};
struct sdio_ops {
int (*start)(struct eswin *tr);
int (*xmit)(struct eswin *tr, struct tx_buff_pkg_node * node);
int (*suspend)(struct eswin *tr);
int (*resume)(struct eswin *tr);
int (*write)(struct eswin *tr, const void* data, const u32 len);
int (*wait_ack)(struct eswin *tr);
};
extern int ecrnx_sdio_register_drv(void);
extern void ecrnx_sdio_unregister_drv(void);
#endif /* __SDIO_H */
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