static int client_init(emd_dev_client_t *client, int major,int sub_id)
{
int ret = 0;
if( (sub_id >= EMD_CHR_CLIENT_NUM) || (sub_id < 0) ){
EMD_MSG_INF("chr","client_init:sub_id(%d) error\n",sub_id);
return -1;
}
// 1. Clear client
memset(client, 0, sizeof(emd_dev_client_t));
// 2. Setting device id
client->major_dev_id = major;
client->sub_dev_id = sub_id;
// 3. Init wait queue head, wake lock, spin loc and semaphore
init_waitqueue_head(&client->wait_q);
spin_lock_init(&client->lock);
mutex_init(&client->emd_mutex);
// 4. Set user_num to zero
client->user_num = 0;
// 5. Alloc and init kfifo
ret=kfifo_alloc(&client->fifo, EMD_MAX_MESSAGE_NUM*sizeof(int),GFP_ATOMIC);
if (ret){
EMD_MSG_INF("chr","kfifo alloc failed(ret=%d).\n",ret);
return ret;
}
EMD_MSG_INF("chr","client_init:sub_id=%d\n",client->sub_dev_id);
return 0;
}
// emd_reset_register: register a user for emd reset
// @name: user name
// return a handle if success; return negative value if failure
int emd_reset_register(char *name)
{
int handle;
if (name == NULL) {
EMD_MSG_INF("chr","[Error]emd_reset_register name=null\n");
return -1;
}
mutex_lock(&emd_reset_mutex);
for (handle = 0; handle < NR_EMD_RESET_USER; handle++) {
if (emd_reset_sta[handle].is_allocate == 0) {
emd_reset_sta[handle].is_allocate = 1;
break;
}
}
if (handle < NR_EMD_RESET_USER) {
emd_reset_sta[handle].is_reset = 0;
mutex_unlock(&emd_reset_mutex);
snprintf(emd_reset_sta[handle].name,EMD_RESET_USER_NAME_SIZE,name);
EMD_MSG_INF("chr","Register a reset handle by %s(%d)\n", current->comm, handle);
return handle;
}
else
{
EMD_MSG_INF("chr","[Error]no reset handler\n");
mutex_unlock(&emd_reset_mutex);
return -1;
}
}
int get_eint_info(const char *name, eint_inf_t *eint_item)
{
#ifdef CONFIG_OF
struct device_node *node;
char buf[64];
int ints[2];
if ((NULL==name) || (NULL==eint_item)) {
EMD_MSG_INF("chr","%s: get invalid arguments:%p,%p\n", __func__, name, eint_item);
return -1;
}
snprintf(buf, 64, "mediatek, %s-eint", name);
EMD_MSG_INF("chr","%s: find:%s\n", __func__, buf);
node = of_find_compatible_node(NULL, NULL, buf);
if (node) {
of_property_read_u32_array(node, "debounce", ints, ARRAY_SIZE(ints));
eint_item->gpio_id = ints[0];
eint_item->debounce_time = ints[1];
eint_item->irq_id = irq_of_parse_and_map(node, 0);
} else {
EMD_MSG_INF("chr","%s: can't find %s\n", __func__, name);
return -2;
}
#endif
return 0;
}
/******************************************************************************************
* Driver functions region
******************************************************************************************/
static int emd_dev_open(struct inode *inode, struct file *file)
{
int index=iminor(inode);
int ret=0;
EMD_MSG_INF("chr","Open by %s sub_id:%d\n",current->comm,index);
if( (index >= EMD_CHR_CLIENT_NUM) || (index < 0) ){
EMD_MSG_INF("chr","Open func get invalid dev sub id\n");
return -1;
}
mutex_lock(&drv_client[index].emd_mutex);
if(drv_client[index].user_num > 0){
EMD_MSG_INF("chr","Multi-Open not support!\n");
mutex_unlock(&drv_client[index].emd_mutex);
return -1;
}
drv_client[index].user_num++;
mutex_unlock(&drv_client[index].emd_mutex);
file->private_data=&drv_client[index];
nonseekable_open(inode,file);
return ret;
}
int cm_do_md_power_off(void)
{
EMD_MSG_INF("chr","cm_do_md_power_off\n");
atomic_set(&traffic_on, 0);
atomic_set(&allow_wk_md, 0);
// Release download key to let md can enter normal boot
mt_set_gpio_dir(GPIO_EXT_MD_DL_KEY, 1);
#ifdef GPIO_EXT_USB_SW2
mt_set_gpio_out(GPIO_EXT_MD_DL_KEY, 0);//set evb
#else
mt_set_gpio_out(GPIO_EXT_MD_DL_KEY, 1);//set phone
#endif
cm_disable_ext_md_wdt_irq();
cm_disable_ext_md_wakeup_irq();
cm_disable_ext_md_exp_irq();
mt_set_gpio_dir(GPIO_EXT_AP_WK_MD, 1);
mt_set_gpio_out(GPIO_EXT_AP_WK_MD, 0);
#ifndef GPIO_EXT_USB_SW2
mt_set_gpio_dir(GPIO_EXT_MD_META, 1);
mt_set_gpio_out(GPIO_EXT_MD_META, 0);
#endif
mt_set_gpio_out(GPIO_EXT_MD_PWR_KEY, 0);
//EMD_MSG_INF("chr","cm_do_md_power_off:GPIO_EXT_MD_PWR_KEY(%d)2\n",mt_get_gpio_out(GPIO_EXT_MD_PWR_KEY));
mt_set_gpio_dir(GPIO_EXT_MD_WK_AP, 0);
mt_set_gpio_pull_enable(GPIO_EXT_MD_WK_AP, 1);
mt_set_gpio_pull_select(GPIO_EXT_MD_WK_AP, 0);
mt_set_gpio_dir(GPIO_EXT_MD_EXP, 0);
mt_set_gpio_pull_enable(GPIO_EXT_MD_EXP, 1);
mt_set_gpio_pull_select(GPIO_EXT_MD_EXP, 0);
mt_set_gpio_dir(GPIO_EXT_MD_DUMP, 0);
mt_set_gpio_pull_enable(GPIO_EXT_MD_DUMP, 1);
mt_set_gpio_pull_select(GPIO_EXT_MD_DUMP, 0);
//For low power, we switch UART GPIO when power off md
mt_set_gpio_mode(GPIO_UART_URXD1_PIN, 0);
mt_set_gpio_mode(GPIO_UART_UTXD1_PIN, 0);
mt_set_gpio_mode(GPIO_UART_URTS1_PIN, 0);
mt_set_gpio_mode(GPIO_UART_UCTS1_PIN, 0);
mt_set_gpio_dir(GPIO_UART_URXD1_PIN, 0);
mt_set_gpio_pull_enable(GPIO_UART_URXD1_PIN, 1);
mt_set_gpio_pull_select(GPIO_UART_URXD1_PIN, 0);
mt_set_gpio_dir(GPIO_UART_UTXD1_PIN, 0);
mt_set_gpio_pull_enable(GPIO_UART_UTXD1_PIN, 1);
mt_set_gpio_pull_select(GPIO_UART_UTXD1_PIN, 0);
mt_set_gpio_dir(GPIO_UART_URTS1_PIN, 0);
mt_set_gpio_pull_enable(GPIO_UART_URTS1_PIN, 1);
mt_set_gpio_pull_select(GPIO_UART_URTS1_PIN, 0);
mt_set_gpio_dir(GPIO_UART_UCTS1_PIN, 0);
mt_set_gpio_pull_enable(GPIO_UART_UCTS1_PIN, 1);
mt_set_gpio_pull_select(GPIO_UART_UCTS1_PIN, 0);
EMD_MSG_INF("chr","uart gpio pull down\n");
cm_dump_gpio();
return 0;
}
void cm_gpio_setup(void)
{
EMD_MSG_INF("chr","cm_gpio_setup 1\n");
atomic_set(&traffic_on, 0);
atomic_set(&allow_wk_md, 0);
// MD wake up AP pin
mt_set_gpio_pull_enable(GPIO_EXT_MD_WK_AP, 1);
mt_set_gpio_pull_select(GPIO_EXT_MD_WK_AP, 0);
mt_set_gpio_dir(GPIO_EXT_MD_WK_AP, 0);
mt_set_gpio_mode(GPIO_EXT_MD_WK_AP, GPIO_EXT_MD_WK_AP_M_EINT);
EMD_MSG_INF("chr","cm_gpio_setup:GPIO_EXT_MD_WK_AP(%x)=%d\n",GPIO_EXT_MD_WK_AP,mt_get_gpio_out(GPIO_EXT_MD_WK_AP));
// AP wake up MD pin
mt_set_gpio_mode(GPIO_EXT_AP_WK_MD, GPIO_EXT_AP_WK_MD_M_GPIO); // GPIO Mode
mt_set_gpio_dir(GPIO_EXT_AP_WK_MD, 1);
mt_set_gpio_out(GPIO_EXT_AP_WK_MD, 0);
EMD_MSG_INF("chr","cm_gpio_setup:GPIO_EXT_AP_WK_MD(%x)=%d\n",GPIO_EXT_AP_WK_MD,mt_get_gpio_out(GPIO_EXT_AP_WK_MD));
// Rest MD pin
mt_set_gpio_mode(GPIO_EXT_MD_RST, GPIO_EXT_MD_RST_M_GPIO); //GPIO202 is reset pin
mt_set_gpio_pull_enable(GPIO_EXT_MD_RST, 0);
mt_set_gpio_pull_select(GPIO_EXT_MD_RST, 1);
cm_relese_rst_signal();
EMD_MSG_INF("chr","cm_gpio_setup 4\n");
EMD_MSG_INF("chr","cm_gpio_setup:GPIO_EXT_MD_RST(%x)=%d\n",GPIO_EXT_MD_RST,mt_get_gpio_out(GPIO_EXT_MD_RST));
// MD power key pin
mt_set_gpio_mode(GPIO_EXT_MD_PWR_KEY, GPIO_EXT_MD_PWR_KEY_M_GPIO); //GPIO 200 is power key
mt_set_gpio_pull_enable(GPIO_EXT_MD_PWR_KEY, 0);
mt_set_gpio_dir(GPIO_EXT_MD_PWR_KEY, 1);
mt_set_gpio_out(GPIO_EXT_MD_PWR_KEY, 0);
EMD_MSG_INF("chr","cm_gpio_setup:GPIO_EXT_MD_PWR_KEY(%x)=%d\n",GPIO_EXT_MD_PWR_KEY,mt_get_gpio_out(GPIO_EXT_MD_PWR_KEY));
// MD WDT irq pin
mt_set_gpio_pull_enable(GPIO_EXT_MD_WD, 1);
mt_set_gpio_pull_select(GPIO_EXT_MD_WD, 1);
mt_set_gpio_dir(GPIO_EXT_MD_WD, 0);
mt_set_gpio_mode(GPIO_EXT_MD_WD, GPIO_EXT_MD_WD_M_EINT); // EINT168
EMD_MSG_INF("chr","cm_gpio_setup GPIO_EXT_MD_WD(%x)(in)=%d\n",GPIO_EXT_MD_WD,mt_get_gpio_in(GPIO_EXT_MD_WD));
// MD Exception irq pin
mt_set_gpio_pull_enable(GPIO_EXT_MD_EXP, 1);
mt_set_gpio_pull_select(GPIO_EXT_MD_EXP, 1);
mt_set_gpio_dir(GPIO_EXT_MD_EXP, 0);
mt_set_gpio_mode(GPIO_EXT_MD_EXP, GPIO_EXT_MD_EXP_M_EINT); //
EMD_MSG_INF("chr","cm_gpio_setup GPIO_EXT_MD_EXP(%x)(in)=%d\n",GPIO_EXT_MD_EXP,mt_get_gpio_in(GPIO_EXT_MD_EXP));
#ifndef GPIO_EXT_USB_SW2
mt_set_gpio_mode(GPIO_EXT_MD_META, GPIO_EXT_MD_META_M_GPIO);
mt_set_gpio_dir(GPIO_EXT_MD_META, 1);// Using input floating
mt_set_gpio_out(GPIO_EXT_MD_META, 0);// Default @ reset state
EMD_MSG_INF("chr","cm_gpio_setup:phone GPIO_EXT_MD_META(%x)=%d\n",GPIO_EXT_MD_META,mt_get_gpio_out(GPIO_EXT_MD_META));
#else
mt_set_gpio_pull_enable(GPIO_EXT_MD_DUMP, 1);
mt_set_gpio_pull_select(GPIO_EXT_MD_DUMP, 0);
mt_set_gpio_dir(GPIO_EXT_MD_DUMP, 1);
mt_set_gpio_mode(GPIO_EXT_MD_DUMP, GPIO_EXT_MD_DUMP_M_GPIO);
EMD_MSG_INF("chr","cm_gpio_setup:evb GPIO_EXT_MD_DUMP(%x)(in)=(%d)\n",GPIO_EXT_MD_DUMP,mt_get_gpio_in(GPIO_EXT_MD_DUMP));
#endif
// Configure eint
eint_var_init();
}
void cm_release_wakeup_md_signal(void)
{
if(atomic_read(&allow_wk_md)) {
mt_set_gpio_out(GPIO_EXT_AP_WK_MD, 1);
EMD_MSG_INF("chr","cm_release_wakeup_md_signal:GPIO_EXT_AP_WK_MD=%d,1!\n",mt_get_gpio_out(GPIO_EXT_AP_WK_MD));
} else {
EMD_MSG_INF("chr","cm_release_wakeup_md_signal:GPIO_EXT_AP_WK_MD=%d,ignore!\n",mt_get_gpio_out(GPIO_EXT_AP_WK_MD));
}
}
void cm_dump_gpio(void)
{
unsigned int pin =0;
pin=GPIO_EXT_MD_DL_KEY;
EMD_MSG_INF("chr","cm_dump_gpio:GPIO_EXT_MD_DL_KEY: dir(%d) in(%d),out(%d)\n", \
mt_get_gpio_dir(pin), mt_get_gpio_in(pin), mt_get_gpio_out(pin));
pin=GPIO_EXT_MD_PWR_KEY;
EMD_MSG_INF("chr","cm_dump_gpio:GPIO_EXT_MD_PWR_KEY: dir(%d) in(%d),out(%d)\n", \
mt_get_gpio_dir(pin), mt_get_gpio_in(pin), mt_get_gpio_out(pin));
pin=GPIO_EXT_MD_RST;
EMD_MSG_INF("chr","cm_dump_gpio:GPIO_EXT_MD_RST: dir(%d) in(%d),out(%d)\n", \
mt_get_gpio_dir(pin), mt_get_gpio_in(pin), mt_get_gpio_out(pin));
pin=GPIO_EXT_MD_WD;
EMD_MSG_INF("chr","cm_dump_gpio:GPIO_EXT_MD_WD: dir(%d) in(%d),out(%d)\n", \
mt_get_gpio_dir(pin), mt_get_gpio_in(pin), mt_get_gpio_out(pin));
pin=GPIO_EXT_MD_WK_AP;
EMD_MSG_INF("chr","cm_dump_gpio:GPIO_EXT_MD_WK_AP: dir(%d) in(%d),out(%d)\n", \
mt_get_gpio_dir(pin), mt_get_gpio_in(pin), mt_get_gpio_out(pin));
pin=GPIO_EXT_AP_WK_MD;
EMD_MSG_INF("chr","cm_dump_gpio:GPIO_EXT_AP_WK_MD: dir(%d) in(%d),out(%d)\n", \
mt_get_gpio_dir(pin), mt_get_gpio_in(pin), mt_get_gpio_out(pin));
pin=GPIO_EXT_MD_EXP;
EMD_MSG_INF("chr","cm_dump_gpio:GPIO_EXT_MD_EXP: dir(%d) in(%d),out(%d)\n", \
mt_get_gpio_dir(pin), mt_get_gpio_in(pin), mt_get_gpio_out(pin));
pin=GPIO_EXT_MD_DUMP;
EMD_MSG_INF("chr","cm_dump_gpio:GPIO_EXT_MD_DUMP: dir(%d) in(%d),out(%d)\n", \
mt_get_gpio_dir(pin), mt_get_gpio_in(pin), mt_get_gpio_out(pin));
#ifndef GPIO_EXT_USB_SW2
pin=GPIO_EXT_MD_META;
EMD_MSG_INF("chr","cm_dump_gpio:GPIO_EXT_MD_META: dir(%d) in(%d),out(%d)\n", \
mt_get_gpio_dir(pin), mt_get_gpio_in(pin), mt_get_gpio_out(pin));
#endif
}
// ccci_user_ready_to_reset: ready to reset and request to reset md
// @handle: a user handle gotten from ccci_reset_register()
// return 0 if emd is reset; return negative value for failure
int emd_user_ready_to_reset(int handle)
{
int i,ret;
int reset_ready = 1;
if( 0==atomic_read(&rst_on_going) ){
EMD_MSG_INF("chr", "Ignore reset request\n");
mutex_lock(&emd_reset_mutex);
emd_reset_sta[handle].is_allocate = 0;
emd_reset_sta[handle].is_reset = 0;
mutex_unlock(&emd_reset_mutex);
return 0;
}
if (handle >= NR_EMD_RESET_USER) {
EMD_MSG_INF("chr", "reset_request: invalid handle:%d \n", handle);
return -1;
}
if (emd_reset_sta[handle].is_allocate == 0) {
EMD_MSG_INF("chr", "reset_request: handle(%d) not alloc: alloc=%d \n",
handle, emd_reset_sta[handle].is_allocate);
return -1;
}
EMD_MSG_INF("chr", "%s (%d) call reset request \n",current->comm, handle);
mutex_lock(&emd_reset_mutex);
emd_reset_sta[handle].is_allocate = 0;
emd_reset_sta[handle].is_reset = 1;
EMD_MSG_INF("chr", "Dump not ready list++++\n");
for (i = 0; i < NR_EMD_RESET_USER; i++) {
if (emd_reset_sta[i].is_allocate && (emd_reset_sta[i].is_reset == 0)) {
reset_ready = 0;
EMD_MSG_INF("chr", " ==> %s\n", emd_reset_sta[i].name);
}
}
EMD_MSG_INF("chr", "Dump not ready list----\n");
mutex_unlock(&emd_reset_mutex);
if (reset_ready == 0)
return -1;
// All service ready, send reset request
EMD_MSG_INF("chr", "Reset MD by %s(%d) \n", current->comm, handle);
if(emd_status != EMD_STATE_NOT_READY)
{
emd_power_off();
}
msleep(EMD_RST_LOW_TIME);
check_drv_rdy_to_rst();
EMD_MSG_INF("chr","send wait done message\n");
ret = send_message_to_user(&drv_client[0], EMD_MSG_WAIT_DONE);
if( ret!=0 )
EMD_MSG_INF("chr","send wait done message fail\n");
return 0;
}
void cm_hold_rst_signal(void)
{
EMD_MSG_INF("chr","cm_hold_rst_signal1:GPIO_EXT_MD_RST(%d)\n",mt_get_gpio_out(GPIO_EXT_MD_RST));
mt_set_gpio_dir(GPIO_EXT_MD_RST, 1);
#ifdef GPIO_EXT_USB_SW2
mt_set_gpio_out(GPIO_EXT_MD_RST, 0);
EMD_MSG_INF("chr","cm_hold_rst_signal2:set evb GPIO_EXT_MD_RST(out)=%d!\n",mt_get_gpio_out(GPIO_EXT_MD_RST));
#else
mt_set_gpio_out(GPIO_EXT_MD_RST, 1);
EMD_MSG_INF("chr","cm_hold_rst_signal2:set phone GPIO_EXT_MD_RST(out)=%d!\n",mt_get_gpio_out(GPIO_EXT_MD_RST));
#endif
}
static int emd_ctl_drv_suspend(struct platform_device *dev, pm_message_t state)
{
EMD_MSG_INF("chr","client:%d suspend!!\n", dev->id);
if( (dev->id < 0)||(dev->id >= EMD_CHR_CLIENT_NUM) )
EMD_MSG_INF("chr","invalid id%d!!\n", dev->id);
else{
if(0 == dev->id){
emd_spm_suspend(emd_status==EMD_STATE_NOT_READY);
}
}
return 0;
}
static int emd_ctl_drv_resume(struct platform_device *dev)
{
EMD_MSG_INF("chr","client:%d resume!!\n", dev->id);
if( (dev->id < 0)||(dev->id >= EMD_CHR_CLIENT_NUM) )
EMD_MSG_INF("chr","invalid id%d!!\n", dev->id);
else{
if(0 == dev->id){
emd_spm_resume();
}
}
return 0;
}
static int emd_send_enter_flight_mode(void)
{
int ret=0;
if(emd_status!=EMD_STATE_READY)
{
EMD_MSG_INF("chr","emd_send_enter_flight_mode:ext md not ready!\n");
return -ENODEV;
}
EMD_MSG_INF("chr","emd_send_enter_flight_mode\n");
emd_power_off();
send_message_to_user(&drv_client[0], EMD_MSG_ENTER_FLIGHT_MODE);
return ret;
}
static int push_data(emd_dev_client_t *client, int data)
{
int size, ret;
if(kfifo_is_full(&client->fifo)){
ret=-ENOMEM;
EMD_MSG_INF("chr","sub_dev%d kfifo full\n",client->sub_dev_id);
}else{
EMD_MSG_INF("chr","push data=0x%08x into sub_dev%d kfifo\n",data,client->sub_dev_id);
size=kfifo_in(&client->fifo,&data,sizeof(int));
WARN_ON(size!=sizeof(int));
ret=sizeof(int);
}
return ret;
}
static void emd_aseert_log_work_func(struct work_struct *data)
{
#if defined (CONFIG_MTK_AEE_FEATURE)
char log[]="ExtMD exception\nMD:G*MT6261_S01*11C.unknown*0000/00/00 00:00\nAP:WG*MT6595_S00\n(MD)Debug";
EMD_MSG_INF("chr","Ext MD exception,%s\n",log);
emd_aseert_log_wait_timeout = 1;
wake_up_interruptible(&emd_aseert_log_wait);
aed_md_exception((int *)log, sizeof(log), (int *)log, sizeof(log), log);
#else
EMD_MSG_INF("chr","Ext MD ASSERT -> RESET\n");
emd_aseert_log_wait_timeout = 1;
wake_up_interruptible(&emd_aseert_log_wait);
emd_request_reset();
#endif
}
int request_ext_md_reset()
{
int ret = 0;
if(atomic_add_return(1, &rst_on_going) == 1){
ret = send_message_to_user(&drv_client[0], EMD_MSG_REQUEST_RST);
if(ret!=0){
EMD_MSG_INF("chr","request_ext_md_reset fail, msg does not send\n");
atomic_dec(&rst_on_going);
}
}else{
EMD_MSG_INF("chr","reset is on-going\n");
}
return ret;
}
static int emd_cfifo_release(struct inode *inode, struct file *file)
{
cfifo_instance_t *cfifo_instance = (cfifo_instance_t *)file->private_data;
int md_id;
cfifo_ctl_block_t *ctlb = NULL;
md_id = cfifo_instance->m_md_id;
ctlb = emd_cfifo_ctlb[md_id];
mutex_lock(&cfifo_instance->emd_cfifo_mutex);
cfifo_instance->count--;
EMD_MSG_INF("cfifo","[cfifo_close]Port%d count %d \n", cfifo_instance->idx, cfifo_instance->count);
if (cfifo_instance->count == 0) {
write_lock_bh(&cfifo_instance->emd_cfifo_rwlock);
cfifo_instance->ready = 0;
write_unlock_bh(&cfifo_instance->emd_cfifo_rwlock);
if(cfifo_instance->reset_handle!=-1)
{
emd_user_ready_to_reset(cfifo_instance->reset_handle);
}
}
mutex_unlock(&cfifo_instance->emd_cfifo_mutex);
return 0;
}
void cm_relese_rst_signal(void)
{
EMD_MSG_INF("chr","cm_relese_rst_signal1:GPIO_EXT_MD_RST(%d)\n",mt_get_gpio_out(GPIO_EXT_MD_RST));
mt_set_gpio_dir(GPIO_EXT_MD_RST, 1);
#ifdef GPIO_EXT_USB_SW2
mt_set_gpio_out(GPIO_EXT_MD_RST, 1);
EMD_MSG_INF("chr","cm_relese_rst_signal2:GPIO_EXT_MD_RST(%d)\n",mt_get_gpio_out(GPIO_EXT_MD_RST));
mt_set_gpio_pull_enable(GPIO_EXT_MD_RST, 1);
mt_set_gpio_dir(GPIO_EXT_MD_RST, 0);
mt_set_gpio_pull_select(GPIO_EXT_MD_RST, 1);
EMD_MSG_INF("chr","cm_relese_rst_signal3:set evb GPIO_EXT_MD_RST(in)=%d!\n",mt_get_gpio_in(GPIO_EXT_MD_RST));
#else
mt_set_gpio_out(GPIO_EXT_MD_RST, 0);
EMD_MSG_INF("chr","cm_relese_rst_signal3:set phoneGPIO_EXT_MD_RST(in)=%d!\n",mt_get_gpio_in(GPIO_EXT_MD_RST));
#endif
}
int cm_get_assertlog_status(void)
{
int val;
mt_set_gpio_dir(GPIO_EXT_MD_DUMP, 0);
val = mt_get_gpio_in(GPIO_EXT_MD_DUMP);
EMD_MSG_INF("chr","cm_get_assertlog_status:GPIO_EXT_MD_EXP(in)=%d!\n",val);
return val;
}
int emd_md_exception(void)
{
emd_status=EMD_STATE_EXCEPTION;
EMD_MSG_INF("chr","emd_md_exception happened!\n");
schedule_work(&emd_aseert_log_work);
return 0;
}
int eint_var_init(void)
{
memset(&ext_md_exp_eint, 0, sizeof(ext_md_exp_eint));
spin_lock_init(&ext_md_exp_eint.lock);
memset(&ext_md_wdt_eint, 0, sizeof(ext_md_wdt_eint));
spin_lock_init(&ext_md_wdt_eint.lock);
memset(&ext_md_wk_eint, 0, sizeof(ext_md_wk_eint));
spin_lock_init(&ext_md_wk_eint.lock);
#ifdef CONFIG_OF
EMD_MSG_INF("chr","%s: CONFIG_OF en\n", __func__);
if(get_eint_info("DT_EXT_MD_EXP", &ext_md_exp_eint) != 0)
return -1;
if(get_eint_info("DT_EXT_MD_WDT", &ext_md_wdt_eint) != 0)
return -1;
if(get_eint_info("DT_EXT_MD_WK_UP", &ext_md_wk_eint) != 0)
return -1;
#else
EMD_MSG_INF("chr","%s: CONFIG_OF dis\n", __func__);
// For exp
ext_md_exp_eint.gpio_id = GPIO_EXT_MD_EXP;
ext_md_exp_eint.debounce_time = CUST_EINT_DT_EXT_MD_EXP_DEBOUNCE_CN;
ext_md_exp_eint.irq_id = CUST_EINT_DT_EXT_MD_EXP_NUM;
ext_md_exp_eint.intr_flag = CUST_EINT_DT_EXT_MD_EXP_TYPE;
// For wdt
ext_md_wdt_eint.gpio_id = GPIO_EXT_MD_WD;
ext_md_wdt_eint.debounce_time = CUST_EINT_DT_EXT_MD_WDT_DEBOUNCE_CN;
ext_md_wdt_eint.irq_id = CUST_EINT_DT_EXT_MD_WDT_NUM;
ext_md_wdt_eint.intr_flag = CUST_EINT_DT_EXT_MD_WDT_TYPE;
// For wakeup
ext_md_wk_eint.gpio_id = GPIO_EXT_MD_WK_AP;
ext_md_wk_eint.debounce_time = CUST_EINT_DT_EXT_MD_WK_UP_DEBOUNCE_CN;
ext_md_wk_eint.irq_id = CUST_EINT_DT_EXT_MD_WK_UP_NUM;
ext_md_wk_eint.intr_flag = CUST_EINT_DT_EXT_MD_WK_UP_TYPE;
#endif
EMD_MSG_INF("chr","%s: Eint-EXP(%d,%d,%d,%x)\n", __func__, ext_md_exp_eint.gpio_id, ext_md_exp_eint.debounce_time, \
ext_md_exp_eint.irq_id, ext_md_exp_eint.intr_flag);
EMD_MSG_INF("chr","%s: Eint-WDT(%d,%d,%d,%x)\n", __func__, ext_md_wdt_eint.gpio_id, ext_md_wdt_eint.debounce_time, \
ext_md_wdt_eint.irq_id, ext_md_wdt_eint.intr_flag);
EMD_MSG_INF("chr","%s: Eint-WK UP(%d,%d,%d,%x)\n", __func__, ext_md_wk_eint.gpio_id, ext_md_wk_eint.debounce_time, \
ext_md_wk_eint.irq_id, ext_md_wk_eint.intr_flag);
return 0;
}
static int emd_power_on(int bootmode)
{
EMD_MSG_INF("chr","emd_power_on, bootmode=%d\n",bootmode);
#ifdef CONFIG_MTK_DT_USB_SUPPORT
#ifdef CONFIG_PM_RUNTIME
/* make sure usb device tree is waked up so that usb is ready */
usb11_auto_resume();
#endif
#endif
cm_do_md_power_on(bootmode);
cm_register_irq_cb(0,ext_md_wdt_irq_cb);
cm_register_irq_cb(1,ext_md_wakeup_irq_cb);
cm_register_irq_cb(2,ext_md_exception_irq_cb);
EMD_MSG_INF("chr","let_ext_md_go...\n");
let_ext_md_go();
return 0;
}
static int let_ext_md_go(void)
{
int ret=0;
int retry;
ret = send_message_to_user(&drv_client[0], EMD_MSG_READY);
atomic_set(&rst_on_going, 0);
if( ret==0 ){
retry = cm_do_md_go();
EMD_MSG_INF("chr","cm_do_md_go, ret=%d\n", retry);
emd_status = EMD_STATE_READY;
}else{
EMD_MSG_INF("chr","let_ext_md_go fail, msg does not send\n");
ret = -1;
}
return ret;
}
int cm_do_md_go(void)
{
int ret = -1;
if (is_hold_rst)
{
is_hold_rst=0;
unsigned int retry = 100;
EMD_MSG_INF("chr","cm_do_md_go:1\n");
EMD_MSG_INF("chr","cm_do_md_go2:GPIO_EXT_MD_RST(out)=%d,GPIO_EXT_MD_WD(in)=%d\n",mt_get_gpio_out(GPIO_EXT_MD_RST),mt_get_gpio_in(GPIO_EXT_MD_WD));
cm_relese_rst_signal();
EMD_MSG_INF("chr","cm_do_md_go3:GPIO_EXT_MD_RST(out)=%d,GPIO_EXT_MD_WD(in)=%d\n",mt_get_gpio_out(GPIO_EXT_MD_RST),mt_get_gpio_in(GPIO_EXT_MD_WD));
// Check WDT pin to high
while(retry>0){
retry--;
if(mt_get_gpio_in(GPIO_EXT_MD_WD)==0)
{
msleep(10);
}
else
{
ret=100-retry;
break;
}
}
atomic_set(&traffic_on, 1);
msleep(1000); // for use AP_WK_MD as EXT_MD_META, give 6261 bootloader sometime to read boot mode
atomic_set(&allow_wk_md, 1);
cm_hold_wakeup_md_signal();
EMD_MSG_INF("chr","cm_do_md_go4:GPIO_EXT_MD_RST(out)=%d,GPIO_EXT_MD_WD(in)=%d\n",mt_get_gpio_out(GPIO_EXT_MD_RST),mt_get_gpio_in(GPIO_EXT_MD_WD));
msleep(POWER_ON_HOLD_TIME);
mt_set_gpio_out(GPIO_EXT_MD_PWR_KEY, 0);
}
mt_set_gpio_dir(GPIO_EXT_MD_WK_AP, 0);
mt_set_gpio_pull_enable(GPIO_EXT_MD_WK_AP, 1);
mt_set_gpio_pull_select(GPIO_EXT_MD_WK_AP, 1);
cm_enable_ext_md_wdt_irq();
cm_enable_ext_md_wakeup_irq();
cm_enable_ext_md_exp_irq();
//msleep(50); // WDT IRQ is level triggered now, no need this debounce
ignore_wdt_interrupt = 0;
return ret;
}
void check_drv_rdy_to_rst(void)
{
int check_count = 0; // Max 10 seconds
while(check_count<MAX_CHK_RDY_TIMES){
if(usb_h_acm_all_clear())
return;
msleep(200);
check_count++;
}
EMD_MSG_INF("chr","Wait drv rdy to rst timeout!!\n");
}
static int emd_send_leave_flight_mode(void)
{
int ret=0;
if(emd_status==EMD_STATE_READY)
{
EMD_MSG_INF("chr","emd_send_leave_flight_mode:ext md is ready,cannot leave flight mode!\n");
return -EPERM;
}
if(atomic_add_return(1, &rst_on_going) == 1){
ret = send_message_to_user(&drv_client[0], EMD_MSG_LEAVE_FLIGHT_MODE);
if(ret!=0){
EMD_MSG_INF("chr","emd_send_leave_flight_mode fail, msg does not send\n");
atomic_dec(&rst_on_going);
}
}else{
EMD_MSG_INF("chr","emd_send_leave_flight_mode:reset is on-going\n");
}
return ret;
}
static void emd_power_off(void)
{
EMD_MSG_INF("chr","emd_power_off\n");
#if defined(MTK_DT_SUPPORT) && !defined(EVDO_DT_SUPPORT)
#ifdef CONFIG_PM_RUNTIME
/* make sure usb device tree is waked up so that usb is ready */
usb11_auto_resume();
#endif
#endif
cm_do_md_power_off();
emd_status = EMD_STATE_NOT_READY;
}
static int pop_data(emd_dev_client_t *client, int *buf)
{
int ret = 0;
if(!kfifo_is_empty(&client->fifo))
{
ret = kfifo_out(&client->fifo, buf, sizeof(int));
EMD_MSG_INF("chr","pop data=0x%08x from sub_dev%d kfifo.\n",*buf,client->sub_dev_id);
}
return ret;
}
static int emd_dev_release(struct inode *inode, struct file *file)
{
int ret=0;
emd_dev_client_t *client=(emd_dev_client_t *)file->private_data;
EMD_MSG_INF("chr","client %d call release\n", client->sub_dev_id);
mutex_lock(&client->emd_mutex);
client->user_num--;
mutex_unlock(&client->emd_mutex);
return 0;
}
int cm_do_md_go(void)
{
int ret = -1;
if (is_hold_rst)
{
is_hold_rst=0;
unsigned int retry = 100;
EMD_MSG_INF("chr","cm_do_md_go:1\n");
EMD_MSG_INF("chr","cm_do_md_go2:GPIO_EXT_MD_RST(out)=%d,GPIO_EXT_MD_WD(in)=%d\n",mt_get_gpio_out(GPIO_EXT_MD_RST),mt_get_gpio_in(GPIO_EXT_MD_WD));
cm_relese_rst_signal();
atomic_set(&traffic_on, 1);
EMD_MSG_INF("chr","cm_do_md_go3:GPIO_EXT_MD_RST(out)=%d,GPIO_EXT_MD_WD(in)=%d\n",mt_get_gpio_out(GPIO_EXT_MD_RST),mt_get_gpio_in(GPIO_EXT_MD_WD));
// Check WDT pin to high
while(retry>0){
retry--;
if(mt_get_gpio_in(GPIO_EXT_MD_WD)==0)
{
msleep(10);
}
else
{
ret=100-retry;
break;
}
}
EMD_MSG_INF("chr","cm_do_md_go4:GPIO_EXT_MD_RST(out)=%d,GPIO_EXT_MD_WD(in)=%d\n",mt_get_gpio_out(GPIO_EXT_MD_RST),mt_get_gpio_in(GPIO_EXT_MD_WD));
msleep(POWER_ON_HOLD_TIME);
mt_set_gpio_out(GPIO_EXT_MD_PWR_KEY, 0);
}
mt_set_gpio_dir(GPIO_EXT_MD_WK_AP, 0);
mt_set_gpio_pull_enable(GPIO_EXT_MD_WK_AP, 1);
mt_set_gpio_pull_select(GPIO_EXT_MD_WK_AP, 1);
cm_enable_ext_md_wdt_irq();
cm_enable_ext_md_wakeup_irq();
cm_enable_ext_md_exp_irq();
msleep(50);
ignore_wdt_interrupt = 0;
return ret;
}
