146 lines
5.6 KiB
C
146 lines
5.6 KiB
C
/*
|
||
* Copyright : (C) 2022 Phytium Information Technology, Inc.
|
||
* All Rights Reserved.
|
||
*
|
||
* This program is OPEN SOURCE software: you can redistribute it and/or modify it
|
||
* under the terms of the Phytium Public License as published by the Phytium Technology Co.,Ltd,
|
||
* either version 1.0 of the License, or (at your option) any later version.
|
||
*
|
||
* This program is distributed in the hope that it will be useful,but WITHOUT ANY WARRANTY;
|
||
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
||
* See the Phytium Public License for more details.
|
||
*
|
||
*
|
||
* FilePath: fsdmmc_dma.c
|
||
* Date: 2022-02-10 14:53:42
|
||
* LastEditTime: 2022-02-18 08:49:31
|
||
* Description: This file is dma descriptor management API.
|
||
*
|
||
* Modify History:
|
||
* Ver Who Date Changes
|
||
* ----- ------ -------- --------------------------------------
|
||
* 1.0 zhugengyu 2021/12/2 init
|
||
*/
|
||
|
||
/***************************** Include Files *********************************/
|
||
#include "fassert.h"
|
||
#include "fio.h"
|
||
#include "fdebug.h"
|
||
|
||
#include "fsdmmc_hw.h"
|
||
#include "fsdmmc.h"
|
||
#include "fsdmmc_dma.h"
|
||
|
||
/************************** Constant Definitions *****************************/
|
||
|
||
/**************************** Type Definitions *******************************/
|
||
|
||
/***************** Macros (Inline Functions) Definitions *********************/
|
||
#define FSDMMC_DEBUG_TAG "FSDMMC-DMA"
|
||
#define FSDMMC_ERROR(format, ...) FT_DEBUG_PRINT_E(FSDMMC_DEBUG_TAG, format, ##__VA_ARGS__)
|
||
#define FSDMMC_WARN(format, ...) FT_DEBUG_PRINT_W(FSDMMC_DEBUG_TAG, format, ##__VA_ARGS__)
|
||
#define FSDMMC_INFO(format, ...) FT_DEBUG_PRINT_I(FSDMMC_DEBUG_TAG, format, ##__VA_ARGS__)
|
||
#define FSDMMC_DEBUG(format, ...) FT_DEBUG_PRINT_D(FSDMMC_DEBUG_TAG, format, ##__VA_ARGS__)
|
||
|
||
/************************** Function Prototypes ******************************/
|
||
|
||
/************************** Variable Definitions *****************************/
|
||
|
||
/*****************************************************************************/
|
||
/**
|
||
* @name: FSdmmcSetReadDMA
|
||
* @msg: 设置读数据DMA配置
|
||
* @return {*}
|
||
* @param {uintptr} base_addr FSDMMC 控制器基地址
|
||
* @param {uintptr} card_addr 读卡地址
|
||
* @param {u32} blk_cnt 读卡的block数
|
||
* @param {void} *buf_p 读卡的目的地址
|
||
*/
|
||
void FSdmmcSetReadDMA(uintptr base_addr, uintptr card_addr, u32 blk_cnt, void *buf_p)
|
||
{
|
||
FASSERT(buf_p);
|
||
|
||
u32 dsth = UPPER_32_BITS((uintptr)buf_p); /* DMA传输目的地址--> sd read buf */
|
||
u32 dstl = LOWER_32_BITS((uintptr)buf_p);
|
||
u32 srch = UPPER_32_BITS((uintptr)card_addr); /* DMA传输源地址 --> sd card */
|
||
u32 srcl = LOWER_32_BITS((uintptr)card_addr);
|
||
|
||
FSDMMC_INFO("sd card: 0x%x:0x%x ==> mem space: 0x%x:0x%x",
|
||
srch, srcl, dsth, dstl);
|
||
|
||
FSDMMC_INFO("Read %d blks from 0x%x", blk_cnt, card_addr);
|
||
|
||
/* DMA 复位 */
|
||
FSDMMC_SET_BIT(base_addr, FSDMMC_SOFTWARE_RESET_REG_OFFSET, FSDMMC_SOFTWARE_RESET_BDRST);
|
||
FSDMMC_CLR_BIT(base_addr, FSDMMC_SOFTWARE_RESET_REG_OFFSET, FSDMMC_SOFTWARE_RESET_BDRST);
|
||
|
||
/* 设置传输块数目 */
|
||
FSDMMC_WRITE_REG(base_addr, FSDMMC_BLK_CNT_REG_OFFSET, blk_cnt);
|
||
|
||
/* 清除状态寄存器 */
|
||
FSdmmcClearErrorInterruptStatus(base_addr);
|
||
FSdmmcClearBDInterruptStatus(base_addr);
|
||
FSdmmcClearNormalInterruptStatus(base_addr);
|
||
|
||
FSDMMC_INFO("Base addr: 0x%x buf_p: %p", base_addr, buf_p);
|
||
|
||
FSDMMC_DATA_BARRIER();
|
||
|
||
/* DMA 读卡地址配置：4 个 cycle
|
||
系统低 4B-系统高 4B-SD 低 4B- SD 高 4B */
|
||
FSDMMC_WRITE_REG(base_addr, FSDMMC_DAT_IN_M_RX_BD_REG_OFFSET, dstl);
|
||
FSDMMC_WRITE_REG(base_addr, FSDMMC_DAT_IN_M_RX_BD_REG_OFFSET, dsth);
|
||
FSDMMC_WRITE_REG(base_addr, FSDMMC_DAT_IN_M_RX_BD_REG_OFFSET, srcl);
|
||
FSDMMC_WRITE_REG(base_addr, FSDMMC_DAT_IN_M_RX_BD_REG_OFFSET, srch);
|
||
|
||
|
||
FSDMMC_INFO("DMA READ START!");
|
||
return;
|
||
}
|
||
|
||
/**
|
||
* @name: FSdmmcSetWriteDMA
|
||
* @msg: 设置写数据DMA配置
|
||
* @return {*}
|
||
* @param {uintptr} base_addr FSDMMC 控制器基地址
|
||
* @param {uintptr} card_addr 写卡地址
|
||
* @param {u32} blk_cnt 写卡的block数
|
||
* @param {void} *buf_p 写卡的源地址
|
||
*/
|
||
void FSdmmcSetWriteDMA(uintptr base_addr, uintptr card_addr, u32 blk_cnt, const void *buf_p)
|
||
{
|
||
FASSERT(buf_p);
|
||
u32 srch = UPPER_32_BITS((uintptr)buf_p); /* DMA传输源地址--> sd read buf */
|
||
u32 srcl = LOWER_32_BITS((uintptr)buf_p);
|
||
u32 dsth = UPPER_32_BITS((uintptr)card_addr); /* DMA传输目的地址 --> sd card */
|
||
u32 dstl = LOWER_32_BITS((uintptr)card_addr);
|
||
|
||
FSDMMC_INFO("mem space: 0x%x:0x%x ==> sd card: 0x%x:0x%x",
|
||
srch, srcl, dsth, dstl);
|
||
|
||
FSDMMC_INFO("Write %d blks from 0x%x", blk_cnt, card_addr);
|
||
|
||
/* DMA 复位 */
|
||
FSDMMC_SET_BIT(base_addr, FSDMMC_SOFTWARE_RESET_REG_OFFSET, FSDMMC_SOFTWARE_RESET_BDRST);
|
||
FSDMMC_CLR_BIT(base_addr, FSDMMC_SOFTWARE_RESET_REG_OFFSET, FSDMMC_SOFTWARE_RESET_BDRST);
|
||
|
||
/* 设置传输块数目 */
|
||
FSDMMC_WRITE_REG(base_addr, FSDMMC_BLK_CNT_REG_OFFSET, blk_cnt);
|
||
|
||
/* 清除状态寄存器 */
|
||
FSdmmcClearErrorInterruptStatus(base_addr);
|
||
FSdmmcClearBDInterruptStatus(base_addr);
|
||
FSdmmcClearNormalInterruptStatus(base_addr);
|
||
|
||
FSDMMC_DATA_BARRIER();
|
||
|
||
/* DMA 写卡地址配置：4 个 cycle
|
||
系统低 4B-系统高 4B-SD 低 4B- SD 高 4B */
|
||
FSDMMC_WRITE_REG(base_addr, FSDMMC_DAT_IN_M_TX_BD_REG_OFFSET, srcl);
|
||
FSDMMC_WRITE_REG(base_addr, FSDMMC_DAT_IN_M_TX_BD_REG_OFFSET, srch);
|
||
FSDMMC_WRITE_REG(base_addr, FSDMMC_DAT_IN_M_TX_BD_REG_OFFSET, dstl);
|
||
FSDMMC_WRITE_REG(base_addr, FSDMMC_DAT_IN_M_TX_BD_REG_OFFSET, dsth);
|
||
|
||
FSDMMC_INFO("DMA WRITE START!");
|
||
return;
|
||
} |