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#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/mutex.h>
#include "eemcs_state.h"
#include "eemcs_debug.h"
#include "eemcs_boot_trace.h"
#include "lte_main.h"
static volatile KAL_UINT32 eemcs_state = EEMCS_INVALID;
static KAL_UINT8 eemcs_state_name[EEMCS_STATE_MAX][32] = {
[EEMCS_INVALID]="EEMCS_INVALID",
[EEMCS_GATE]="EEMCS_GATE",
[EEMCS_INIT]="EEMCS_INIT",
[EEMCS_XBOOT]="EEMCS_XBOOT",
[EEMCS_MOLY_HS_P1]="EEMCS_MOLY_HS_P1",
[EEMCS_MOLY_HS_P2]="EEMCS_MOLY_HS_P2",
[EEMCS_BOOTING_DONE]="EEMCS_BOOTING_DONE",
[EEMCS_EXCEPTION]="EEMCS_EXCEPTION"
};
/*
* @brief EEMCS device state change callback list init.
* @param
* None.
* @return None.
*/
static struct {
struct list_head list;
struct mutex mutex;
} eemcs_stat_callback_head;
void eemcs_state_callback_init(){
DBGLOG(INIT, DBG, "%s", FUNC_NAME);
INIT_LIST_HEAD(&eemcs_stat_callback_head.list);
mutex_init(&eemcs_stat_callback_head.mutex);
}
kal_bool eemcs_state_callback(EEMCS_STATE state){
struct list_head *next=NULL;
EEMCS_STATE_CALLBACK_T *node;
DBGLOG(BOOT, DBG, "%s: state=%d", FUNC_NAME, state);
mutex_lock(&eemcs_stat_callback_head.mutex);
list_for_each(next, &eemcs_stat_callback_head.list) {
node = (EEMCS_STATE_CALLBACK_T *) list_entry(next, EEMCS_STATE_CALLBACK_T, list);
node->callback(state);
}
mutex_unlock(&eemcs_stat_callback_head.mutex);
return 0;
}
kal_bool eemcs_state_callback_register(EEMCS_STATE_CALLBACK_T *node){
struct list_head *next=NULL;
EEMCS_STATE_CALLBACK_T *list_node;
DBGLOG(INIT, DBG, "%s: node=%p", FUNC_NAME, node);
mutex_lock(&eemcs_stat_callback_head.mutex);
/* To check if node is already in list or not, otherwise list will be cycle*/
list_for_each(next, &eemcs_stat_callback_head.list) {
list_node = (EEMCS_STATE_CALLBACK_T *) list_entry(next, EEMCS_STATE_CALLBACK_T, list);
if (list_node == node){
DBGLOG(INIT, ERR, "EEMCS_STATE_CALLBACK %#X has registed!", (unsigned int)node);
mutex_unlock(&eemcs_stat_callback_head.mutex);
return KAL_FAIL;
}
}
list_add(&node->list, &eemcs_stat_callback_head.list);
mutex_unlock(&eemcs_stat_callback_head.mutex);
return 0;
}
kal_bool eemcs_state_callback_unregister(EEMCS_STATE_CALLBACK_T *node){
DBGLOG(INIT, DBG, "%s: node=%p", FUNC_NAME, node);
mutex_lock(&eemcs_stat_callback_head.mutex);
list_del(&node->list);
mutex_unlock(&eemcs_stat_callback_head.mutex);
return 0;
}
/*
* @brief Get EEMCS device state.
* @param
* None.
* @return Current EEMCS device state.
*/
KAL_UINT32 check_device_state(void)
{
return eemcs_state;
}
/*
* @brief Check if EEMCS driver is ready.
* @param
* None.
* @return 1 indicates success. Othrewise 0.
*/
kal_bool eemcs_device_ready(void)
{
#if defined(__EEMCS_XBOOT_SUPPORT__)
if ((check_device_state() == EEMCS_BOOTING_DONE) || (check_device_state() == EEMCS_EXCEPTION))
return 1;
else
return 0;
#else // !__EEMCS_XBOOT_SUPPORT__
return 1;
#endif // __EEMCS_XBOOT_SUPPORT__
}
/* EEMCS_EXCEPTION */
#define CHANGE_STATE_ERR(old_state, new_state) \
do { \
DBGLOG(BOOT, ERR, "eemcs state change fail: %s->%s", \
eemcs_state_name[old_state], eemcs_state_name[new_state]); \
} while (0)
/*
* @brief Change the state of EEMCS driver.
* @param
* state [in] New state.
* @return true indicates success. Othrewise false.
*/
kal_bool change_device_state(KAL_UINT32 state)
{
DBGLOG(BOOT, STA, "%s(%d) -> %s(%d)", eemcs_state_name[eemcs_state], eemcs_state, \
eemcs_state_name[state], state);
if(EEMCS_GATE == state){
eemcs_state = EEMCS_GATE;
eemcs_state_callback(eemcs_state);
eemcs_boot_trace_state(state);
return true;
}
switch (eemcs_state)
{
case EEMCS_INVALID:
{
if (state == EEMCS_GATE) {
eemcs_state = EEMCS_GATE;
} else {
CHANGE_STATE_ERR(eemcs_state, state);
}
}
break;
case EEMCS_GATE:
{
if (state == EEMCS_INIT) {
eemcs_state = EEMCS_INIT;
}
else if (state == EEMCS_XBOOT) { //add for handle GATE while xboot fail retry
eemcs_state = EEMCS_XBOOT;
}
else {
CHANGE_STATE_ERR(eemcs_state, state);
}
}
break;
case EEMCS_INIT:
{
if (state == EEMCS_XBOOT) {
eemcs_state = EEMCS_XBOOT;
} else {
CHANGE_STATE_ERR(eemcs_state, state);
}
}
break;
case EEMCS_XBOOT:
{
if (state == EEMCS_MOLY_HS_P1) {
eemcs_state = EEMCS_MOLY_HS_P1;
//Enable WDT Interrupt Mask, shall make sure md WDT setting is ready
mtlte_enable_WDT_flow();
} else if (state == EEMCS_XBOOT) {
eemcs_state = EEMCS_XBOOT;
DBGLOG(BOOT, STA, "RST!! BROM SDIO no response EEMCS_XBOOT -> EEMCS_XBOOT");
} else {
CHANGE_STATE_ERR(eemcs_state, state);
}
}
break;
case EEMCS_MOLY_HS_P1:
{
if (state == EEMCS_MOLY_HS_P2) {
eemcs_state = EEMCS_MOLY_HS_P2;
}
else if (state == EEMCS_EXCEPTION) {
eemcs_state = EEMCS_EXCEPTION;
}
else if (state == EEMCS_XBOOT) {
eemcs_state = EEMCS_XBOOT;
DBGLOG(BOOT, STA, "RST!! EEMCS_MOLY_HS_P1 no response EEMCS_MOLY_HS_P1 -> EEMCS_XBOOT");
}
else {
CHANGE_STATE_ERR(eemcs_state, state);
}
}
break;
case EEMCS_MOLY_HS_P2:
{
if (state == EEMCS_BOOTING_DONE) {
eemcs_state = EEMCS_BOOTING_DONE;
}
else if (state == EEMCS_EXCEPTION) {
eemcs_state = EEMCS_EXCEPTION;
}
else if (state == EEMCS_XBOOT) {
eemcs_state = EEMCS_XBOOT;
DBGLOG(BOOT, STA, "RST!! EEMCS_MOLY_HS_P2 no response EEMCS_MOLY_HS_P2 -> EEMCS_XBOOT");
}
else {
CHANGE_STATE_ERR(eemcs_state, state);
}
}
break;
case EEMCS_BOOTING_DONE:
{
if ((EEMCS_EXCEPTION != state) && (EEMCS_GATE != state)){
CHANGE_STATE_ERR(eemcs_state, state);
}
eemcs_state = state;
}
break;
case EEMCS_EXCEPTION:
{
eemcs_state = state;
}
break;
default:
return false;
}
eemcs_state_callback(eemcs_state);
eemcs_boot_trace_state(state);
return true;
}
bool eemcs_on_reset(void){
return ((EEMCS_GATE == eemcs_state) ? true:false);
}
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