int MMC_LB_Init() {
// dprintf("MMC Init\r\n");
_MMC_LB_InitCache();
MMC_Initialize(MMC_4BIT_MODE);
return -1;
}
static void MMCGpioTask(void *arg)
{
u8 err;
cardstate = CARD_OUT;
cardexsit = 1 ;
while(1)
{
// __intc_mask_irq(48 + MMC_CD_PIN);
printf("Looks like MMC gpio change! \n");
if ( cardstate == CARD_OUT ) //card have inserted!
{
OSTimeDlyHMSM(0,0,0,500);
if ( __gpio_get_pin(MMC_CD_PIN) == 0 ) //card readlly insert!
{
printf("Card readlly insert! \n");
cardstate = CARD_IN;
info_card_in();
MMC_Initialize();
__gpio_as_irq_rise_edge(MMC_CD_PIN);
}
else
__gpio_as_irq_fall_edge(MMC_CD_PIN);
}
else //card have not inserted!
{
OSTimeDlyHMSM(0,0,0,500);
if ( __gpio_get_pin(MMC_CD_PIN) == 1 ) //card readlly out!
{
printf("Card readlly out! \n");
cardstate = CARD_OUT;
info_card_out();
__gpio_as_irq_fall_edge(MMC_CD_PIN);
}
else
__gpio_as_irq_rise_edge(MMC_CD_PIN);
}
__gpio_ack_irq(MMC_CD_PIN);
__intc_ack_irq(48 + MMC_CD_PIN);
__gpio_unmask_irq(MMC_CD_PIN);
OSSemPend(MMCGPIOEvent, 0, &err);
}
}
//#include "mmc_protocol.h"
//struct mmc_csd csd;
void MMCTest()
{
unsigned short mmcbuf[2048];
int i;
unsigned int t[2];
unsigned int t1[2];
unsigned int size;
JZ_StartTimer();
JZ_GetTimer(t);
MMC_Initialize();
size=MMC_GetSize();
printf("Card Size: %d\n",size);
for(i = 0; i < 2048;i++)
mmcbuf[i] = i;
printf("write mmc 4 8 sector\r\n");
MMC_WriteMultiBlock(4,8,(unsigned char *)mmcbuf);
printf("write mmc 12 8 sector\r\n");
MMC_WriteMultiBlock(12,8,(unsigned char *)mmcbuf);
for(i = 0; i < 2048;i++)
mmcbuf[i] = 0;
printf("read mmc 4 8 sector\r\n");
MMC_ReadMultiBlock(4,8,(unsigned char *)mmcbuf);
for(i = 0; i < 2048;i++)
if(mmcbuf[i] != i)
printf("error %d, %d\r\n", mmcbuf[i],i);
printf("read mmc 12 8 sector\r\n");
for(i = 0; i < 2048;i++)
mmcbuf[i] = 0;
MMC_ReadMultiBlock(12,8,(unsigned char *)mmcbuf);
for(i = 0; i < 2048;i++)
if(mmcbuf[i] != i)
printf("error %d, %d\r\n", mmcbuf[i],i);
printf("Test mmc OK!\n");
JZ_GetTimer(t1);
JZ_DiffTimer(t1,t1,t);
printf("write file use timer %d.%06d s\r\n",t1[1],t1[0]);
JZ_StopTimer();
}
void mmc_detect_init()
{
MMCGPIOEvent = OSSemCreate(0);
__gpio_mask_irq(MMC_CD_PIN);
__gpio_as_input(MMC_CD_PIN);
__gpio_disable_pull(MMC_CD_PIN);
request_irq(48 + MMC_CD_PIN, mmc_gpio_irq_handler, 0);
__gpio_unmask_irq(MMC_CD_PIN);
cardexsit = 0;
mmcsrc.GetRequest = GetRequest;
mmcsrc.Response = Response;
mmcsrc.Name = "MMC";
printf("Register Midware SRC MMC! \n");
RegisterMidSrc(&mmcsrc);
mmcid = mmcsrc.ID;
printf("mmc ID %d \n",mmcsrc.ID);
MMC_Initialize();
OSTaskCreate(MMCGpioTask, (void *)0,
(void *)&MGTaskStack[MMC_GPIO_TASK_STK_SIZE - 1],
MMC_GPIO_TASK_PRIO);
}
