INT32 mtk_wcn_hif_sdio_query_chipid(INT32 waitFlag)
{
UINT32 timeSlotMs = 200;
UINT32 maxTimeSlot = 15;
UINT32 counter = 0;
//gComboChipId = 0x6628;
if (0 == waitFlag) {
return gComboChipId;
}
if (0 <= hif_sdio_is_chipid_valid(gComboChipId)) {
return gComboChipId;
}
wmt_plat_pwr_ctrl(FUNC_ON);
wmt_plat_sdio_ctrl(WMT_SDIO_SLOT_SDIO1, FUNC_ON);
while (counter < maxTimeSlot) {
if (0 <= hif_sdio_is_chipid_valid(gComboChipId)) {
break;
}
msleep(timeSlotMs);
counter++;
}
wmt_plat_sdio_ctrl(WMT_SDIO_SLOT_SDIO1, FUNC_OFF);
wmt_plat_pwr_ctrl(FUNC_OFF);
return gComboChipId;
}
int sdio_detect_query_chipid(int waitFlag)
{
unsigned int timeSlotMs = 200;
unsigned int maxTimeSlot = 15;
unsigned int counter = 0;
//gComboChipId = 0x6628;
if (0 == waitFlag)
return gComboChipId;
if (0 <= hif_sdio_is_chipid_valid(gComboChipId))
return gComboChipId;
while (counter < maxTimeSlot)
{
if (0 <= hif_sdio_is_chipid_valid(gComboChipId))
break;
msleep(timeSlotMs);
counter++;
}
return gComboChipId;
}
int wmt_detect_ext_chip_detect(void)
{
int iRet = -1;
unsigned int chipId = -1;
/*if there is no external combo chip, return -1*/
int bgfEintStatus = -1;
WMT_DETECT_INFO_FUNC("++\n");
/*wait for a stable time*/
msleep (10);
/*read BGF_EINT_PIN status*/
bgfEintStatus = wmt_detect_read_ext_cmb_status();;
/*EINT status is not important for detect chipid,So ingnore it */
#ifdef WMT_NO_EINT_VALUE
bgfEintStatus = 1 ;
#endif
if (0 == bgfEintStatus)
{
/*external chip does not exist*/
WMT_DETECT_INFO_FUNC("external combo chip not detected\n");
}
else if (1 == bgfEintStatus)
{
/*combo chip exists*/
WMT_DETECT_INFO_FUNC("external combo chip detected\n");
/*detect chipid by sdio_detect module*/
chipId = sdio_detect_query_chipid(1);
if (0 <= hif_sdio_is_chipid_valid(chipId))
{
WMT_DETECT_INFO_FUNC("valid external combo chip id (0x%x)\n", chipId);
}
else
{
WMT_DETECT_INFO_FUNC("invalid_external combo chip id (0x%x)\n", chipId);
}
iRet = 0;
}
else
{
/*Error exists*/
WMT_DETECT_ERR_FUNC("error happens when detecting combo chip\n");
}
WMT_DETECT_INFO_FUNC("--\n");
/*return 0*/
return iRet;
/*todo: if there is external combo chip, power on chip return 0*/
}
