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#include "sFRm_flashrom.h"
#include "libu64/stackcheck.h"
#include "os_internal_flash.h"
#include "macros.h"
#include "m_thread.h"
#include "stack.h"
OSMesgQueue sFlashromMsgQueue;
OSMesg sFlashromMsgBuf[1];
OSIoMesg sFlashromIOMsg;
STACK(sFlashromStack, 0x400);
StackEntry sFlashromStackInfo;
OSThread sFlashromThread;
FlashromRequest sFlashromRequest;
s32 sFlashromIsInit = FALSE;
s32 sFRm_Init(void) {
s32 ret = TRUE;
u32 type;
u32 maker;
osFlashInit();
sFRm_InitRequest();
osCreateMesgQueue(&sFlashromMsgQueue, sFlashromMsgBuf, ARRAY_COUNT(sFlashromMsgBuf));
osFlashReadId(&type, &maker);
switch (maker) {
case FLASH_VERSION_MX_PROTO_A:
break;
case FLASH_VERSION_MX_A:
break;
case FLASH_VERSION_MX_C:
break;
case FLASH_VERSION_MX_B_AND_D:
break;
case FLASH_VERSION_MEI:
break;
default:
ret = FALSE;
break;
}
if (ret == TRUE) {
sFlashromIsInit = TRUE;
}
return ret;
}
s32 sFRm_IsInit(void) {
return sFlashromIsInit;
}
s32 sFRm_EraseSector(u32 pageNum) {
return osFlashSectorErase(pageNum);
}
s32 sFRm_EraseAll(void) {
return osFlashAllErase();
}
s32 sFRm_WritePage(void* addr, u32 pageNum) {
s32 ret = -1;
s32 err;
osWritebackDCache(addr, FLASH_BLOCK_SIZE);
err = osFlashWriteBuffer(&sFlashromIOMsg, OS_MESG_PRI_NORMAL, addr, &sFlashromMsgQueue);
osRecvMesg(&sFlashromMsgQueue, NULL, OS_MESG_BLOCK);
if ((err != -1) && (err == 0)) {
ret = osFlashWriteArray(pageNum);
}
return ret;
}
s32 sFRm_Write(void* addr, u32 pageNum, u32 pageCount) {
s32 ret;
s32 retries;
u32 i;
if ((pageNum % FLASH_BLOCK_SIZE) != 0) {
return 1;
}
osWritebackDCache(addr, pageCount * FLASH_BLOCK_SIZE);
retries = 3;
do {
ret = osFlashSectorErase(pageNum);
if (ret == -1) {
return ret;
}
for (i = 0; i < pageCount; i++) {
ret = osFlashWriteBuffer(&sFlashromIOMsg, OS_MESG_PRI_NORMAL, (u8*)addr + i * FLASH_BLOCK_SIZE,
&sFlashromMsgQueue);
osRecvMesg(&sFlashromMsgQueue, NULL, OS_MESG_BLOCK);
if (ret == -1) {
break;
}
ret = osFlashWriteArray(pageNum + i);
if (ret == -1) {
break;
}
}
retries--;
} while ((ret == -1) && (retries != 0));
return ret;
}
s32 sFRm_ReadPage(void* addr, u32 pageNum) {
s32 ret;
osInvalDCache(addr, FLASH_BLOCK_SIZE);
ret = osFlashReadArray(&sFlashromIOMsg, 0, pageNum, addr, 1, &sFlashromMsgQueue);
osRecvMesg(&sFlashromMsgQueue, NULL, OS_MESG_BLOCK);
return ret;
}
s32 sFRm_Read(void* addr, u32 pageNum, u32 pageCount) {
s32 ret;
OSIoMesg msg;
osInvalDCache(addr, pageCount * FLASH_BLOCK_SIZE);
ret = osFlashReadArray(&msg, OS_MESG_PRI_NORMAL, pageNum, addr, pageCount, &sFlashromMsgQueue);
osRecvMesg(&sFlashromMsgQueue, NULL, OS_MESG_BLOCK);
return ret;
}
void sFRm_InitRequest(void) {
FlashromRequest* req = &sFlashromRequest;
req->type = 0;
}
void sFRm_proc(void* arg) {
FlashromRequest* req = (FlashromRequest*)arg;
switch (req->type) {
case FLASHROM_REQUEST_WRITE:
req->response = sFRm_Write(req->addr, req->pageNum, req->pageCount);
osSendMesg(&req->queue, (OSMesg)req->response, OS_MESG_BLOCK);
break;
case FLASHROM_REQUEST_READ:
req->response = sFRm_Read(req->addr, req->pageNum, req->pageCount);
osSendMesg(&req->queue, (OSMesg)req->response, OS_MESG_BLOCK);
break;
}
}
void sFRm_WriteAsync(void* addr, u32 pageNum, u32 pageCount) {
FlashromRequest* req = &sFlashromRequest;
req->type = FLASHROM_REQUEST_WRITE;
req->addr = addr;
req->pageNum = pageNum;
req->pageCount = pageCount;
osCreateMesgQueue(&req->queue, req->msgBuf, ARRAY_COUNT(req->msgBuf));
StackCheck_Init(&sFlashromStackInfo, sFlashromStack, STACK_TOP(sFlashromStack), 0, 0x100, "sFRm_flashrom");
osCreateThread(&sFlashromThread, M_THREAD_ID_FLASHROM, sFRm_proc, &sFlashromRequest, STACK_TOP(sFlashromStack),
M_PRIORITY_FLASHROM);
osStartThread(&sFlashromThread);
}
s32 sFRm_IsBusy(void) {
FlashromRequest* req = &sFlashromRequest;
if (sFRm_IsInit() != 1) {
return -1;
}
return MQ_IS_FULL(&req->queue);
}
s32 sFRm_AwaitResult(void) {
FlashromRequest* req = &sFlashromRequest;
osRecvMesg(&req->queue, NULL, OS_MESG_BLOCK);
osDestroyThread(&sFlashromThread);
StackCheck_Check(&sFlashromStackInfo);
StackCheck_Cleanup(&sFlashromStackInfo);
return req->response;
}
void sFRm_WriteSync(void* addr, u32 pageNum, u32 pageCount) {
sFRm_WriteAsync(addr, pageNum, pageCount);
sFRm_AwaitResult();
}
s32 sFRm_GetResult(void) {
FlashromRequest* req = &sFlashromRequest;
return req->response;
}
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