static void hall_device_enable(struct hall_device_chip *chip, int on)
{
SENSOR_LOG_INFO("%s hall_device\n",on? "enable" : "disable");
if (on)
{
hall_device_irq_enable(&(chip->irq_s), true, true);
hall_device_irq_enable(&(chip->irq_n), true, true);
hall_device_check_state(chip);
}
else
{
hall_device_irq_enable(&(chip->irq_s), false, true);
hall_device_irq_enable(&(chip->irq_n), false, true);
}
}
static void hall_device_irq_work_n(struct work_struct *work)
{
struct hall_device_chip *chip = container_of(work, struct hall_device_chip, irq_work_n);
mutex_lock(&chip->lock);
//SENSOR_LOG_INFO("enter\n");
if (0 == gpio_get_value(chip->irq_n.irq_pin))
{
SENSOR_LOG_INFO("MAGNETIC_DEVICE NEAR\n");
input_report_rel(chip->idev, REL_RX, MAGNETIC_DEVICE_NEAR);
hall_device_wakelock_ops(&(chip->wakeup_wakelock),false);
}
else
{
SENSOR_LOG_INFO("MAGNETIC_DEVICE FAR\n");
input_report_rel(chip->idev, REL_RX, MAGNETIC_DEVICE_FAR);
hrtimer_start(&chip->unlock_wakelock_timer, ktime_set(3, 0), HRTIMER_MODE_REL);
}
input_sync(chip->idev);
chip->on_irq_working = false;
hall_device_irq_enable(&(chip->irq_n), true, true);
//SENSOR_LOG_INFO("exit\n");
mutex_unlock(&chip->lock);
};
static void hall_device_irq_work_n(struct work_struct *work)
{
struct hall_device_chip *chip = container_of(work, struct hall_device_chip, irq_work_n);
unsigned int hall_device_state;
mutex_lock(&chip->lock);
hall_device_state = gpio_get_value(chip->irq_n.irq_pin) ? MAGNETIC_DEVICE_FAR : MAGNETIC_DEVICE_NEAR;
if (hall_device_state==chip->state_n)
{
SENSOR_LOG_INFO("MAGNETIC_DEVICE N [%s] same state\n",hall_device_state==1? "NEAR" : "FAR");
}
else
{
chip->state_n = hall_device_state;
chip->state_s = gpio_get_value(chip->irq_s.irq_pin) ? MAGNETIC_DEVICE_FAR : MAGNETIC_DEVICE_NEAR;
SENSOR_LOG_INFO("N is %s, S is %s\n",chip->state_n==1? "NEAR" : "FAR",chip->state_s==1? "NEAR" : "FAR");
input_report_rel(chip->idev, REL_RX, chip->state_s);
input_report_rel(chip->idev, REL_RY, chip->state_n);
input_sync(chip->idev);
}
if (chip->state_n==MAGNETIC_DEVICE_NEAR)
{
hall_device_wakelock_ops(&(chip->wakeup_wakelock),false);
}
else
{
hrtimer_start(&chip->unlock_wakelock_timer, ktime_set(3, 0), HRTIMER_MODE_REL);
}
chip->on_irq_working = false;
hall_device_irq_enable(&(chip->irq_n), true, true);
mutex_unlock(&chip->lock);
};
static irqreturn_t hall_device_irq_n(int irq, void *handle)
{
struct hall_device_chip *chip = handle;
//SENSOR_LOG_INFO("enter\n");
hall_device_irq_enable(&(chip->irq_n), false, false);
chip->on_irq_working = true;
hrtimer_cancel(&chip->unlock_wakelock_timer);
if (true == chip->enabled)
{
hall_device_wakelock_ops(&(chip->wakeup_wakelock),true);
}
if (0==schedule_work(&chip->irq_work_n))
{
SENSOR_LOG_INFO("schedule_work failed!\n");
}
//SENSOR_LOG_INFO("exit\n");
return IRQ_HANDLED;
}
static int __devinit hall_device_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
int ret = 0;
static struct hall_device_chip *chip;
SENSOR_LOG_INFO("prob start\n");
chip = kzalloc(sizeof(struct hall_device_chip), GFP_KERNEL);
if (!chip) {
ret = -ENOMEM;
goto malloc_failed;
}
chip->client = client;
i2c_set_clientdata(client, chip);
hall_device_chip_data_init(chip);
hall_device_parse_dt(chip);
SENSOR_LOG_INFO("hall_device_int_s is %d",chip->irq_s.irq_pin);
SENSOR_LOG_INFO("hall_device_int_n is %d",chip->irq_n.irq_pin);
mutex_init(&chip->lock);
hall_device_class = class_create(THIS_MODULE, "hall_device");
chip->hall_device_dev = device_create(hall_device_class, NULL, hall_device_dev_t, &hall_device_driver ,"hall_device");
if (IS_ERR(chip->hall_device_dev))
{
ret = PTR_ERR(chip->hall_device_dev);
goto create_hall_device_dev_failed;
}
dev_set_drvdata(chip->hall_device_dev, chip);
ret = gpio_request(chip->irq_s.irq_pin, "chip->irq_s.irq_pin");
if (ret)
{
SENSOR_LOG_INFO("gpio %d is busy and then to free it\n",chip->irq_s.irq_pin);
gpio_free(chip->irq_s.irq_pin);
ret = gpio_request(chip->irq_s.irq_pin, "chip->irq_s.irq_pin");
if (ret)
{
SENSOR_LOG_INFO("gpio %d is busy and then to free it\n",chip->irq_s.irq_pin);
return ret;
}
}
ret = gpio_tlmm_config(GPIO_CFG(chip->irq_s.irq_pin, 0, GPIO_CFG_INPUT, GPIO_CFG_PULL_UP, GPIO_CFG_2MA), GPIO_CFG_ENABLE);
chip->irq_s.irq_num = gpio_to_irq(chip->irq_s.irq_pin);
INIT_WORK(&chip->irq_work_s, hall_device_irq_work_s);
ret = request_threaded_irq(chip->irq_s.irq_num, NULL, &hall_device_irq_s, IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING | IRQF_ONESHOT, "hall_device_irq_s", chip);
if (ret) {
SENSOR_LOG_ERROR("Failed to request irq %d\n", chip->irq_s.irq_num);
goto irq_s_register_fail;
}
ret = gpio_request(chip->irq_n.irq_pin, "chip->irq_n.irq_pin");
if (ret)
{
SENSOR_LOG_INFO("gpio %d is busy and then to free it\n",chip->irq_n.irq_pin);
gpio_free(chip->irq_n.irq_pin);
ret = gpio_request(chip->irq_n.irq_pin, "chip->irq_n.irq_pin");
if (ret)
{
SENSOR_LOG_INFO("gpio %d is busy and then to free it\n",chip->irq_n.irq_pin);
return ret;
}
}
ret = gpio_tlmm_config(GPIO_CFG(chip->irq_n.irq_pin, 0, GPIO_CFG_INPUT, GPIO_CFG_PULL_UP, GPIO_CFG_2MA), GPIO_CFG_ENABLE);
chip->irq_n.irq_num = gpio_to_irq(chip->irq_n.irq_pin);
INIT_WORK(&chip->irq_work_n, hall_device_irq_work_n);
ret = request_threaded_irq(chip->irq_n.irq_num , NULL, &hall_device_irq_n, IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING | IRQF_ONESHOT, "hall_device_irq_n", chip);
if (ret) {
SENSOR_LOG_ERROR("Failed to request irq %d\n", chip->irq_n.irq_num );
goto irq_n_register_fail;
}
chip->idev = input_allocate_device();
if (!chip->idev)
{
SENSOR_LOG_ERROR("no memory for idev\n");
ret = -ENODEV;
goto input_alloc_failed;
}
chip->idev->name = "hall_device";
chip->idev->id.bustype = BUS_I2C;
set_bit(EV_REL, chip->idev->evbit);
set_bit(REL_RX, chip->idev->relbit); //NEAR
set_bit(REL_RY, chip->idev->relbit); //FAR
ret = input_register_device(chip->idev);
if (ret) {
input_free_device(chip->idev);
SENSOR_LOG_ERROR("cant register input '%s'\n",chip->idev->name);
goto input_register_failed;
}
create_sysfs_interfaces(chip->hall_device_dev);
hall_device_irq_enable(&(chip->irq_s), false, true);
hall_device_irq_enable(&(chip->irq_n), false, true);
wake_lock_init(&chip->wakeup_wakelock.lock, WAKE_LOCK_SUSPEND, chip->wakeup_wakelock.name);
hrtimer_init(&chip->unlock_wakelock_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
chip->unlock_wakelock_timer.function = hall_device_unlock_wakelock_work_func;
SENSOR_LOG_INFO("prob success\n");
return 0;
input_register_failed:
input_free_device(chip->idev);
input_alloc_failed:
malloc_failed:
irq_n_register_fail:
irq_s_register_fail:
create_hall_device_dev_failed:
chip->hall_device_dev = NULL;
class_destroy(hall_device_class);
SENSOR_LOG_INFO("prob failed\n");
return -1;
}
