C++ (Cpp) ab3100_get_register_page_interruptible Beispiele

Beispiel #1

Datei: ab3100-core.c Projekt: mjduddin/B14CKB1RD_kernel_m8

static irqreturn_t ab3100_irq_handler(int irq, void *data)
{
	struct ab3100 *ab3100 = data;
	u8 event_regs[3];
	u32 fatevent;
	int err;

	err = ab3100_get_register_page_interruptible(ab3100, AB3100_EVENTA1,
				       event_regs, 3);
	if (err)
		goto err_event;

	fatevent = (event_regs[0] << 16) |
		(event_regs[1] << 8) |
		event_regs[2];

	if (!ab3100->startup_events_read) {
		ab3100->startup_events[0] = event_regs[0];
		ab3100->startup_events[1] = event_regs[1];
		ab3100->startup_events[2] = event_regs[2];
		ab3100->startup_events_read = true;
	}
	blocking_notifier_call_chain(&ab3100->event_subscribers,
				     fatevent, NULL);

	dev_dbg(ab3100->dev,
		"IRQ Event: 0x%08x\n", fatevent);

	return IRQ_HANDLED;

 err_event:
	dev_dbg(ab3100->dev,
		"error reading event status\n");
	return IRQ_HANDLED;
}

Beispiel #2

Datei: ab3100-core.c Projekt: ChrisOHu/linux

static int get_register_page_interruptible(struct device *dev, u8 bank,
	u8 first_reg, u8 *regvals, u8 numregs)
{
	struct ab3100 *ab3100 = dev_get_drvdata(dev->parent);

	return ab3100_get_register_page_interruptible(ab3100,
			first_reg, regvals, numregs);
}

Beispiel #3

Datei: ab3100-core.c Projekt: 3null/fastsocket

/* Interrupt handling worker */
static void ab3100_work(struct work_struct *work)
{
	struct ab3100 *ab3100 = container_of(work, struct ab3100, work);
	u8 event_regs[3];
	u32 fatevent;
	int err;

	err = ab3100_get_register_page_interruptible(ab3100, AB3100_EVENTA1,
				       event_regs, 3);
	if (err)
		goto err_event_wq;

	fatevent = (event_regs[0] << 16) |
		(event_regs[1] << 8) |
		event_regs[2];

	if (!ab3100->startup_events_read) {
		ab3100->startup_events = fatevent;
		ab3100->startup_events_read = true;
	}
	/*
	 * The notified parties will have to mask out the events
	 * they're interested in and react to them. They will be
	 * notified on all events, then they use the fatevent value
	 * to determine if they're interested.
	 */
	blocking_notifier_call_chain(&ab3100->event_subscribers,
				     fatevent, NULL);

	dev_dbg(ab3100->dev,
		"IRQ Event: 0x%08x\n", fatevent);

	/* By now the IRQ should be acked and deasserted so enable it again */
	enable_irq(ab3100->i2c_client->irq);
	return;

 err_event_wq:
	dev_dbg(ab3100->dev,
		"error in event workqueue\n");
	/* Enable the IRQ anyway, what choice do we have? */
	enable_irq(ab3100->i2c_client->irq);
	return;
}

Beispiel #4

/*
 * This is a threaded interrupt handler so we can make some
 * I2C calls etc.
 */
static irqreturn_t ab3100_irq_handler(int irq, void *data)
{
	struct ab3100 *ab3100 = data;
	u8 event_regs[3];
	u32 fatevent;
	int err;

	add_interrupt_randomness(irq);

	err = ab3100_get_register_page_interruptible(ab3100, AB3100_EVENTA1,
				       event_regs, 3);
	if (err)
		goto err_event;

	fatevent = (event_regs[0] << 16) |
		(event_regs[1] << 8) |
		event_regs[2];

	if (!ab3100->startup_events_read) {
		ab3100->startup_events[0] = event_regs[0];
		ab3100->startup_events[1] = event_regs[1];
		ab3100->startup_events[2] = event_regs[2];
		ab3100->startup_events_read = true;
	}
	/*
	 * The notified parties will have to mask out the events
	 * they're interested in and react to them. They will be
	 * notified on all events, then they use the fatevent value
	 * to determine if they're interested.
	 */
	blocking_notifier_call_chain(&ab3100->event_subscribers,
				     fatevent, NULL);

	dev_dbg(ab3100->dev,
		"IRQ Event: 0x%08x\n", fatevent);

	return IRQ_HANDLED;

 err_event:
	dev_dbg(ab3100->dev,
		"error reading event status\n");
	return IRQ_HANDLED;
}

Beispiel #5

static void ab3100_work(struct work_struct *work)
{
	struct ab3100 *ab3100 = container_of(work, struct ab3100, work);
	u8 event_regs[3];
	u32 fatevent;
	int err;

	err = ab3100_get_register_page_interruptible(ab3100, AB3100_EVENTA1,
				       event_regs, 3);
	if (err)
		goto err_event_wq;

	fatevent = (event_regs[0] << 16) |
		(event_regs[1] << 8) |
		event_regs[2];

	if (!ab3100->startup_events_read) {
		ab3100->startup_events = fatevent;
		ab3100->startup_events_read = true;
	}
	
	blocking_notifier_call_chain(&ab3100->event_subscribers,
				     fatevent, NULL);

	dev_dbg(ab3100->dev,
		"IRQ Event: 0x%08x\n", fatevent);

	
	enable_irq(ab3100->i2c_client->irq);
	return;

 err_event_wq:
	dev_dbg(ab3100->dev,
		"error in event workqueue\n");
	
	enable_irq(ab3100->i2c_client->irq);
	return;
}