C++ (Cpp) ps2_handle_response Beispiele

Beispiel #1

Datei: atkbd.c Projekt: ExpressOS/third_party-l4re

static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data,
			unsigned int flags, struct pt_regs *regs)
{
	struct atkbd *atkbd = serio->private;
	unsigned int code = data;
	int scroll = 0, click = -1;
	int value;

#ifdef ATKBD_DEBUG
	printk(KERN_DEBUG "atkbd.c: Received %02x flags %02x\n", data, flags);
#endif

#if !defined(__i386__) && !defined (__x86_64__)
	if ((flags & (SERIO_FRAME | SERIO_PARITY)) && (~flags & SERIO_TIMEOUT) && !atkbd->resend && atkbd->write) {
		printk(KERN_WARNING "atkbd.c: frame/parity error: %02x\n", flags);
		serio_write(serio, ATKBD_CMD_RESEND);
		atkbd->resend = 1;
		goto out;
	}

	if (!flags && data == ATKBD_RET_ACK)
		atkbd->resend = 0;
#endif

	if (unlikely(atkbd->ps2dev.flags & PS2_FLAG_ACK))
		if  (ps2_handle_ack(&atkbd->ps2dev, data))
			goto out;

	if (unlikely(atkbd->ps2dev.flags & PS2_FLAG_CMD))
		if  (ps2_handle_response(&atkbd->ps2dev, data))
			goto out;

	if (!atkbd->enabled)
		goto out;

	input_event(&atkbd->dev, EV_MSC, MSC_RAW, code);

	if (atkbd->translated) {

		if (atkbd->emul ||
		    !(code == ATKBD_RET_EMUL0 || code == ATKBD_RET_EMUL1 ||
		      code == ATKBD_RET_HANGUEL || code == ATKBD_RET_HANJA ||
		      code == ATKBD_RET_ERR ||
	             (code == ATKBD_RET_BAT && !atkbd->bat_xl))) {
			atkbd->release = code >> 7;
			code &= 0x7f;
		}

		if (!atkbd->emul &&
		     (code & 0x7f) == (ATKBD_RET_BAT & 0x7f))
			atkbd->bat_xl = !atkbd->release;
	}

Beispiel #2

Datei: libps2.c Projekt: mikuhatsune001/linux2.6.32

int ps2_handle_ack(struct ps2dev *ps2dev, unsigned char data)
{
	switch (data) {
		case PS2_RET_ACK:
			ps2dev->nak = 0;
			break;

		case PS2_RET_NAK:
			ps2dev->flags |= PS2_FLAG_NAK;
			ps2dev->nak = PS2_RET_NAK;
			break;

		case PS2_RET_ERR:
			if (ps2dev->flags & PS2_FLAG_NAK) {
				ps2dev->flags &= ~PS2_FLAG_NAK;
				ps2dev->nak = PS2_RET_ERR;
				break;
			}

		/*
		 * Workaround for mice which don't ACK the Get ID command.
		 * These are valid mouse IDs that we recognize.
		 */
		case 0x00:
		case 0x03:
		case 0x04:
			if (ps2dev->flags & PS2_FLAG_WAITID) {
				ps2dev->nak = 0;
				break;
			}
			/* Fall through */
		default:
			return 0;
	}


	if (!ps2dev->nak) {
		ps2dev->flags &= ~PS2_FLAG_NAK;
		if (ps2dev->cmdcnt)
			ps2dev->flags |= PS2_FLAG_CMD | PS2_FLAG_CMD1;
	}

	ps2dev->flags &= ~PS2_FLAG_ACK;
	wake_up(&ps2dev->wait);

	if (data != PS2_RET_ACK)
		ps2_handle_response(ps2dev, data);

	return 1;
}

Beispiel #3

Datei: atkbd.c Projekt: mpalmer/linux-2.6

static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data,
			unsigned int flags)
{
	struct atkbd *atkbd = serio_get_drvdata(serio);
	struct input_dev *dev = atkbd->dev;
	unsigned int code = data;
	int scroll = 0, hscroll = 0, click = -1;
	int value;
	unsigned short keycode;

#ifdef ATKBD_DEBUG
	printk(KERN_DEBUG "atkbd.c: Received %02x flags %02x\n", data, flags);
#endif

#if !defined(__i386__) && !defined (__x86_64__)
	if ((flags & (SERIO_FRAME | SERIO_PARITY)) && (~flags & SERIO_TIMEOUT) && !atkbd->resend && atkbd->write) {
		printk(KERN_WARNING "atkbd.c: frame/parity error: %02x\n", flags);
		serio_write(serio, ATKBD_CMD_RESEND);
		atkbd->resend = 1;
		goto out;
	}

	if (!flags && data == ATKBD_RET_ACK)
		atkbd->resend = 0;
#endif

	if (unlikely(atkbd->ps2dev.flags & PS2_FLAG_ACK))
		if  (ps2_handle_ack(&atkbd->ps2dev, data))
			goto out;

	if (unlikely(atkbd->ps2dev.flags & PS2_FLAG_CMD))
		if  (ps2_handle_response(&atkbd->ps2dev, data))
			goto out;

	if (!atkbd->enabled)
		goto out;

	input_event(dev, EV_MSC, MSC_RAW, code);

	if (atkbd->translated) {

		if (atkbd->emul || atkbd_need_xlate(atkbd->xl_bit, code)) {
			atkbd->release = code >> 7;
			code &= 0x7f;
		}

		if (!atkbd->emul)
			atkbd_calculate_xl_bit(atkbd, data);
	}