static void initial_connection_check(struct acc_con_info *acc)
{
int dock_state;
int otg_state;
int jig_state;
s16 adc_val;
/* checks dock connectivity before registers dock irq */
dock_state = gpio_get_value(acc->pdata->accessory_irq_gpio);
if (!dock_state)
acc_dock_check(acc, true);
/* checks otg connectivity before registers otg irq */
otg_state = gpio_get_value(acc->pdata->dock_irq_gpio);
if (!otg_state) {
wake_lock(&acc->wake_lock);
msleep(420); /* workaround for jack */
connector_detect_change(acc, &adc_val);
acc_notified(acc, adc_val);
wake_unlock(&acc->wake_lock);
}
/* checks jig connectivity before registers jig irq */
jig_state = gpio_get_value(acc->pdata->jig_on_gpio);
if (jig_state)
_detected(acc, P30_JIG, 1);
}
irqreturn_t acc_ID_interrupt(int irq, void *ptr)
{
struct acc_con_info *acc = ptr;
int acc_ID_val, adc_val;
static int post_state = -1;
ACC_CONDEV_DBG("");
acc_ID_val = gpio_get_value(acc->pdata->dock_irq_gpio);
ACC_CONDEV_DBG("IRQ_DOCK_GPIO is %d", acc_ID_val);
if (acc_ID_val == 1) {
if (post_state != 1) {
post_state = 1;
ACC_CONDEV_DBG("Accessory detached");
// switch_set_state(&acc->ear_jack_switch, 0);
acc_notified(acc, false);
set_irq_type(irq, IRQF_TRIGGER_LOW | IRQF_ONESHOT);
} else
ACC_CONDEV_DBG("[WARNING] duplication detache --> ignore");
} else if (acc_ID_val == 0) {
if (post_state != 0) {
wake_lock(&acc->wake_lock);
post_state = 0;
msleep(420); /* workaround for jack */
ACC_CONDEV_DBG("Accessory attached");
// switch_set_state(&acc->ear_jack_switch, 1);
adc_val = connector_detect_change();
acc_notified(acc, adc_val);
set_irq_type(irq, IRQF_TRIGGER_HIGH | IRQF_ONESHOT);
wake_unlock(&acc->wake_lock);
} else {
adc_val = connector_detect_change();
ACC_CONDEV_DBG("[WARNING] duplication attache (adc = %d) --> ignore", adc_val);
}
}
return IRQ_HANDLED;
}
static irqreturn_t acc_id_interrupt(int irq, void *ptr)
{
struct acc_con_info *acc = ptr;
int acc_id_val;
#ifndef CONFIG_SAMSUNG_Y_CABLE
s16 adc_val;
#endif
int delay = 10;
static int post_state = -1;
acc_id_val = gpio_get_value(acc->pdata->dock_irq_gpio);
pr_info("accessorry_id irq handler: dock_irq gpio val = %d\n",
acc_id_val);
if (acc_id_val == post_state) {
pr_warning("30pin: duplicated otg connection event,ignore(%d).",
acc_id_val);
return IRQ_HANDLED;
}
while (delay > 0) {
if (acc_id_val != gpio_get_value(acc->pdata->dock_irq_gpio))
return IRQ_HANDLED;
usleep_range(10000, 11000);
delay--;
}
if (acc_id_val) {
pr_info("Accessory detached");
acc_notified(acc, false);
#ifdef CONFIG_SAMSUNG_Y_CABLE
adc_val = 0;
/*we are using this value for next detection as well,
we need it to be updated at all times*/
#endif
} else {
wake_lock(&acc->wake_lock);
msleep(420); /* workaround for jack */
connector_detect_change(acc, &adc_val);
pr_info("Accessory attached, adc=%d\n", adc_val);
acc_notified(acc, adc_val);
wake_unlock(&acc->wake_lock);
}
post_state = acc_id_val;
return IRQ_HANDLED;
}
static void acc_dwork_accessory_detect(struct work_struct *work)
{
struct acc_con_info *acc = container_of(work,
struct acc_con_info, acc_id_dwork.work);
int acc_ID_val, adc_val;
static int post_state = -1;
ACC_CONDEV_DBG("");
acc_ID_val = gpio_get_value(acc->pdata->dock_irq_gpio);
ACC_CONDEV_DBG("IRQ_DOCK_GPIO is %d", acc_ID_val);
if (acc_ID_val == 1) {
if (post_state != 1) {
post_state = 1;
ACC_CONDEV_DBG("Accessory detached");
acc_notified(acc, false);
} else
ACC_CONDEV_DBG("Duplication detach");
} else if (acc_ID_val == 0) {
if (post_state != 0) {
wake_lock(&acc->wake_lock);
post_state = 0;
msleep(420); /* workaround for jack */
ACC_CONDEV_DBG("Accessory attached");
adc_val = connector_detect_change();
acc_notified(acc, adc_val);
wake_unlock(&acc->wake_lock);
} else {
adc_val = connector_detect_change();
ACC_CONDEV_DBG("Duplication attach (adc = %d)",
adc_val);
}
}
}
static void acc_id_delay_work(struct work_struct *work)
{
struct acc_con_info *acc = container_of(work,
struct acc_con_info, acc_id_dwork.work);
int adc_val = 0;
if (!acc->pdata->get_dock_state()) {
ACC_CONDEV_DBG("ACCESSORY detached\n");
wake_unlock(&acc->wake_lock);
return;
} else {
ACC_CONDEV_DBG("Accessory attached");
adc_val = connector_detect_change();
ACC_CONDEV_DBG("adc_val : %d", adc_val);
acc_notified(acc, adc_val);
}
wake_unlock(&acc->wake_lock);
}
void acc_ID_intr_handle(struct work_struct *_work)
{
//ACC_CONDEV_DBG("");
int acc_ID_val = 0, adc_val;
acc_ID_val = gpio_get_value(GPIO_DOCK_INT);
ACC_CONDEV_DBG("GPIO_DOCK_INT is %d",acc_ID_val);
if(acc_ID_val!=ACC_STATE)
{
if(1==acc_ID_val)
{
ACC_CONDEV_DBG("Accessory detatched");
ACC_STATE = acc_ID_val;
acc_notified(false);
set_irq_type(IRQ_DOCK_INT, IRQ_TYPE_EDGE_FALLING);
#ifdef CONFIG_USB_S3C_OTG_HOST
if(intr_count++)
s3c_usb_cable(USB_OTGHOST_DETACHED);
#endif
}
else if(0==acc_ID_val)
{
msleep(420); //workaround for jack
ACC_CONDEV_DBG("Accessory attached");
ACC_STATE = acc_ID_val;
adc_val = connector_detect_change();
acc_notified(adc_val);
set_irq_type(IRQ_DOCK_INT, IRQ_TYPE_EDGE_RISING);
#ifdef CONFIG_USB_S3C_OTG_HOST
// check USB OTG Host ADC range...
if(adc_val > 2700 && adc_val < 2799) {
s3c_usb_cable(USB_OTGHOST_ATTACHED);
}
#endif
}
}
else
{
ACC_CONDEV_DBG("Ignored");
}
enable_irq(IRQ_DOCK_INT);
}
