/* 
 * EMAC common driver functions
 * 
 * Copyright (c) 2020 Elvees (support@elvees.com)
 * Author: Dmitry Evtushenko
 *
 */

#ifndef __func_h
#define __func_h

#include <asm/io.h>
#include <linux/stddef.h>
#include <linux/printk.h>

#include "emac.h"


//#define PRINT_ENA

//#define USE_REG_ACCESS_BY_FUNC


#ifndef USE_REG_ACCESS_BY_FUNC

#define MCR(a)		*(volatile unsigned*)(a)
#define MCA(a)		(a)


#define _Rd( pe, ofs) \
	MCR( pe->eth_regs + (ofs))
	
#define _Wr( pe, ofs, val) \
	MCR( pe->eth_regs + (ofs)) = val
	
#define _Rd_RxDMA( pe, ofs) \
	MCR( pe->dma_rx_regs + (ofs))
	
#define _Wr_RxDMA( pe, ofs, val) \
	MCR( pe->dma_rx_regs + (ofs)) = val
	
#define _Rd_TxDMA( pe, ofs) \
	MCR( pe->dma_tx_regs + (ofs))
	
#define _Wr_TxDMA( pe, ofs, val) \
	MCR( pe->dma_tx_regs + (ofs)) = val

#endif // !USE_REG_ACCESS_BY_FUNC


//////////////////// functions: ////////////////////

static inline void print_empty( const char *psFmt, ...) {}

#ifdef PRINT_ENA
	#define PRINT  pr_info
#else //!PRINT_ENA:
	#define PRINT  print_empty
#endif //!PRINT_ENA


#ifdef USE_REG_ACCESS_BY_FUNC

// Функции записи и чтения в регистры EMAC и DMA EMAC:

static inline u32 _Rd( mc_emac_t *pe, unsigned ofs)
{
	return __raw_readl( pe->eth_regs + ofs);
}

static inline void _Wr( mc_emac_t *pe, unsigned ofs, u32 val)
{
	__raw_writel( val, (pe->eth_regs + ofs));
}

static inline u32 _Rd_RxDMA( mc_emac_t *pe, unsigned ofs)
{
	return __raw_readl( pe->dma_rx_regs + ofs);
}

static inline void _Wr_RxDMA( mc_emac_t *pe, unsigned ofs, u32 val)
{
	__raw_writel( val, (pe->dma_rx_regs + ofs));
}

static inline u32 _Rd_TxDMA( mc_emac_t *pe, unsigned ofs)
{
	return __raw_readl( pe->dma_tx_regs + ofs);
}

static inline void _Wr_TxDMA( mc_emac_t *pe, unsigned ofs, u32 val)
{
	__raw_writel( val, (pe->dma_tx_regs + ofs));
}

#endif //USE_REG_ACCESS_BY_FUNC


#endif //!__func_h