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Commit 0eedab70 authored by Marc Dietrich's avatar Marc Dietrich Committed by Greg Kroah-Hartman
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staging: nvec: ps2: add some more debug functions 



This can print the mouse traffic which goes over the i2c bus. Make
mouse debugging messages configurable and disable them by default.

Signed-off-by: default avatarMarc Dietrich <marvin24@gmx.de>
Signed-off-by: default avatarJulian Andres Klode <jak@jak-linux.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 4b625c3a

drivers/staging/nvec/nvec_ps2.c

+13 −5
Original line number Original line Diff line number Diff line
@@ -25,6 +25,14 @@ 
#define STOP_STREAMING	{'\x06', '\x04'}

#define STOP_STREAMING	{'\x06', '\x04'}

#define SEND_COMMAND	{'\x06', '\x01', '\xf4', '\x01'}

#define SEND_COMMAND	{'\x06', '\x01', '\xf4', '\x01'}





#ifdef NVEC_PS2_DEBUG

#define NVEC_PHD(str, buf, len) \

	print_hex_dump(KERN_DEBUG, str, DUMP_PREFIX_NONE, \

			16, 1, buf, len, false)

#else

#define NVEC_PHD(str, buf, len)

#endif



static const unsigned char MOUSE_RESET[] = {'\x06', '\x01', '\xff', '\x03'};

static const unsigned char MOUSE_RESET[] = {'\x06', '\x01', '\xff', '\x03'};





struct nvec_ps2 {

struct nvec_ps2 {
@@ -67,18 +75,18 @@ static int nvec_ps2_notifier(struct notifier_block *nb, 
	case NVEC_PS2_EVT:

	case NVEC_PS2_EVT:

		for (i = 0; i < msg[1]; i++)

		for (i = 0; i < msg[1]; i++)

			serio_interrupt(ps2_dev.ser_dev, msg[2 + i], 0);

			serio_interrupt(ps2_dev.ser_dev, msg[2 + i], 0);

		NVEC_PHD("ps/2 mouse event: ", &msg[2], msg[1]);

		return NOTIFY_STOP;

		return NOTIFY_STOP;





	case NVEC_PS2:

	case NVEC_PS2:

		if (msg[2] == 1)

		if (msg[2] == 1) {

			for (i = 0; i < (msg[1] - 2); i++)

			for (i = 0; i < (msg[1] - 2); i++)

				serio_interrupt(ps2_dev.ser_dev, msg[i + 4], 0);

				serio_interrupt(ps2_dev.ser_dev, msg[i + 4], 0);

		else if (msg[1] != 2) {	/* !ack */

			NVEC_PHD("ps/2 mouse reply: ", &msg[4], msg[1] - 2);

			print_hex_dump(KERN_WARNING, "unhandled mouse event: ",

				DUMP_PREFIX_NONE, 16, 1,

				msg, msg[1] + 2, true);

		}

		}





		else if (msg[1] != 2) /* !ack */

			NVEC_PHD("unhandled mouse event: ", msg, msg[1] + 2);

		return NOTIFY_STOP;

		return NOTIFY_STOP;

	}

	}