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/*
* 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: fsdio_intr.c
* Date: 2022-06-01 15:08:58
* LastEditTime: 2022-06-01 15:08:58
* Description: This files is for SDIO interrupt related function implementation
*
* Modify History:
* Ver Who Date Changes
* ----- ------ -------- --------------------------------------
* 1.1 zhugengyu 2022/6/6 modify according to tech manual.
*/
/***************************** Include Files *********************************/
#include "fio.h"
#include "fdebug.h"
#include "fassert.h"
#include "ftypes.h"
#include "fsdio_hw.h"
#include "fsdio.h"
/************************** Constant Definitions *****************************/
/**************************** Type Definitions *******************************/
/***************** Macros (Inline Functions) Definitions *********************/
#define FSDIO_DEBUG_TAG "FSDIO-INTR"
#define FSDIO_ERROR(format, ...) FT_DEBUG_PRINT_E(FSDIO_DEBUG_TAG, format, ##__VA_ARGS__)
#define FSDIO_WARN(format, ...) FT_DEBUG_PRINT_W(FSDIO_DEBUG_TAG, format, ##__VA_ARGS__)
#define FSDIO_INFO(format, ...) FT_DEBUG_PRINT_I(FSDIO_DEBUG_TAG, format, ##__VA_ARGS__)
#define FSDIO_DEBUG(format, ...) FT_DEBUG_PRINT_D(FSDIO_DEBUG_TAG, format, ##__VA_ARGS__)
#define FSDIO_CALL_EVT_HANDLER(instance_p, evt) \
if (instance_p->evt_handlers[evt]) \
{ \
instance_p->evt_handlers[evt](instance_p, instance_p->evt_args[evt]); \
}
static const u32 cmd_err_ints_mask = FSDIO_INT_RTO_BIT | FSDIO_INT_RCRC_BIT | FSDIO_INT_RE_BIT |
FSDIO_INT_DCRC_BIT | FSDIO_INT_DRTO_BIT |
FSDIO_INT_SBE_BCI_BIT | FSDIO_INT_HLE_BIT;
static const u32 dmac_err_ints_mask = FSDIO_DMAC_INT_ENA_FBE | FSDIO_DMAC_INT_ENA_DU |
FSDIO_DMAC_INT_ENA_AIS;
/************************** Function Prototypes ******************************/
/*****************************************************************************/
/**
* @name: FSdioGetInterruptMask
* @msg: Get SDIO controller interrupt mask
* @return {u32} interrupt mask bits
* @param {FSdio} *instance_p, SDIO controller instance
* @param {FSdioIntrType} type, Type of interrupt, controller/DMA interrupt
*/
u32 FSdioGetInterruptMask(FSdio *const instance_p, FSdioIntrType type)
{
FASSERT(instance_p);
uintptr base_addr = instance_p->config.base_addr;
u32 mask = 0U;
if (0 == instance_p->config.base_addr)
{
FSDIO_ERROR("device is not yet initialized!!!");
return mask;
}
if (FSDIO_GENERAL_INTR == type)
{
mask = FSDIO_READ_REG(base_addr, FSDIO_INT_MASK_OFFSET);
}
else
{
mask = FSDIO_READ_REG(base_addr, FSDIO_DMAC_INT_EN_OFFSET);
}
return mask;
}
/**
* @name: FSdioSetInterruptMask
* @msg: Enable/Disable SDIO controller interrupt
* @return {NONE}
* @param {FSdio} *instance_p, SDIO controller instance
* @param {FSdioIntrType} type, Type of interrupt, controller/DMA interrupt
* @param {u32} set_mask, interrupt mask bits
* @param {boolean} enable, TRUE: enable interrupt mask bits
*/
void FSdioSetInterruptMask(FSdio *const instance_p, FSdioIntrType type, u32 set_mask, boolean enable)
{
FASSERT(instance_p);
uintptr base_addr = instance_p->config.base_addr;
u32 mask = 0U;
if (0 == instance_p->config.base_addr)
{
FSDIO_ERROR("device is not yet initialized!!!");
return;
}
mask = FSdioGetInterruptMask(instance_p, type);
if (TRUE == enable)
{
mask |= set_mask;
}
else
{
mask &= ~set_mask;
}
if (FSDIO_GENERAL_INTR == type)
{
FSDIO_WRITE_REG(base_addr, FSDIO_INT_MASK_OFFSET, mask);
}
else
{
FSDIO_WRITE_REG(base_addr, FSDIO_DMAC_INT_EN_OFFSET, mask);
}
return;
}
/**
* @name: FSdioInterruptHandler
* @msg: Interrupt handler for SDIO instance
* @return {NONE}
* @param {s32} vector, Interrupt id
* @param {void} *param, Interrupt params, is SDIO instance
*/
void FSdioInterruptHandler(s32 vector, void *param)
{
FASSERT(param);
FSdio *const instance_p = (FSdio * const)param;
uintptr base_addr = instance_p->config.base_addr;
u32 events, event_mask, dmac_events, dmac_evt_mask;
events = FSDIO_READ_REG(base_addr, FSDIO_RAW_INTS_OFFSET);
dmac_events = FSDIO_READ_REG(base_addr, FSDIO_DMAC_STATUS_OFFSET);
event_mask = FSDIO_READ_REG(base_addr, FSDIO_INT_MASK_OFFSET);
dmac_evt_mask = FSDIO_READ_REG(base_addr, FSDIO_DMAC_INT_EN_OFFSET);
if (!(events & FSDIO_INT_ALL_BITS) &&
!(dmac_events & FSDIO_DMAC_STATUS_ALL_BITS))
{
FSDIO_DEBUG("irq exit with no action");
return; /* no interrupt status */
}
FSDIO_WRITE_REG(base_addr, 0xfd0U, 0U);
FSDIO_DEBUG("events:0x%x,mask:0x%x,dmac_events:%x,dmac_mask:0x%x", events, event_mask, dmac_events, dmac_evt_mask);
FSDIO_WRITE_REG(base_addr, FSDIO_RAW_INTS_OFFSET, events);
FSDIO_WRITE_REG(base_addr, FSDIO_DMAC_STATUS_OFFSET, dmac_events);
if (((events & event_mask) == 0) &&
((dmac_events & dmac_evt_mask == 0)))
{
return; /* no need to handle interrupt */
}
/* handle card detect event */
if (((events & event_mask) & FSDIO_INT_CD_BIT) && (FALSE == instance_p->config.non_removable))
{
FSDIO_DEBUG("sd status changed here ! status:[%d]", FSDIO_READ_REG(base_addr, FSDIO_CARD_DETECT_OFFSET));
FSDIO_CALL_EVT_HANDLER(instance_p, FSDIO_EVT_CARD_DETECTED);
}
if ((events & FSDIO_INT_DTO_BIT) && (events & FSDIO_INT_CMD_BIT)) /* handle cmd && data done */
{
FSDIO_DEBUG("cmd and data over");
FSDIO_CALL_EVT_HANDLER(instance_p, FSDIO_EVT_CMD_DONE);
FSDIO_CALL_EVT_HANDLER(instance_p, FSDIO_EVT_DATA_DONE);
}
else if (events & FSDIO_INT_CMD_BIT) /* handle cmd done */
{
FSDIO_DEBUG("cmd over");
FSDIO_CALL_EVT_HANDLER(instance_p, FSDIO_EVT_CMD_DONE);
}
else if (events & FSDIO_INT_DTO_BIT) /* handle data done */
{
FSDIO_DEBUG("data over");
FSDIO_CALL_EVT_HANDLER(instance_p, FSDIO_EVT_DATA_DONE);
}
/* handle error state */
if ((dmac_events & dmac_err_ints_mask) || (events & cmd_err_ints_mask))
{
FSDIO_ERROR("ERR:events:0x%x,mask:0x%x,dmac_evts:0x%x,dmac_mask:0x%x",
events, event_mask, dmac_events, dmac_evt_mask);
FSDIO_CALL_EVT_HANDLER(instance_p, FSDIO_EVT_ERR_OCCURE);
}
return;
}
/**
* @name: FSdioRegisterEvtHandler
* @msg: Register event call-back function as handler for interrupt events
* @return {NONE}
* @param {FSdio} *instance_p, SDIO controller instance
* @param {FSdioEvtType} evt, interrupt event
* @param {FSdioEvtHandler} handler, event call-back function
* @param {void} *handler_arg, argument of event call-back function
*/
void FSdioRegisterEvtHandler(FSdio *const instance_p, FSdioEvtType evt, FSdioEvtHandler handler, void *handler_arg)
{
FASSERT(instance_p);
instance_p->evt_handlers[evt] = handler;
instance_p->evt_args[evt] = handler_arg;
}
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