Commit 6718e8ad authored by Jarod Wilson's avatar Jarod Wilson Committed by Mauro Carvalho Chehab
Browse files

V4L/DVB: IR/imon: convert to ir-core protocol change handling 



Drop the imon driver's internal protocol definitions in favor of using
those provided by ir-core. Should make ir-keytable Just Work for
switching protocol on the fly on the imon devices that support both the
native imon remotes and mce remotes.

The imon-no-pad-stabilize pseudo-protocol was dropped as a protocol, and
converted to a separate modprobe option (which it probably should have
been in the first place). On the TODO list is to convert this to an as yet
unwritten protocol-specific options framework.

While the mce remotes obviously map to IR_TYPE_RC6, I've yet to look at
what the actual ir signals from the native imon remotes are, so for the
moment, imon native ir is mapped to IR_TYPE_OTHER. Nailing it down more
accurately is also on the TODO list.

Signed-off-by: default avatarJarod Wilson <jarod@redhat.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 0a4f8d07

drivers/media/IR/imon.c

+65 −86
Original line number Diff line number Diff line
@@ -127,8 +127,7 @@ struct imon_context { 


	u32 kc;				/* current input keycode */

	u32 last_keycode;		/* last reported input keycode */

	u8 ir_protocol;			/* iMON or MCE (RC6) IR protocol? */

	u8 ir_proto_mask;		/* supported IR protocol mask */

	u64 ir_type;			/* iMON or MCE (RC6) IR protocol? */

	u8 mce_toggle_bit;		/* last mce toggle bit */

	bool release_code;		/* some keys send a release code */
@@ -173,20 +172,6 @@ enum { 
	IMON_DISPLAY_TYPE_NONE = 4,

};



enum {

	IMON_IR_PROTOCOL_AUTO       = 0x0,

	IMON_IR_PROTOCOL_MCE        = 0x1,

	IMON_IR_PROTOCOL_IMON       = 0x2,

	IMON_IR_PROTOCOL_IMON_NOPAD = 0x4,

};



enum {

	IMON_IR_PROTO_MASK_NONE = 0x0,

	IMON_IR_PROTO_MASK_MCE  = IMON_IR_PROTOCOL_MCE,

	IMON_IR_PROTO_MASK_IMON = IMON_IR_PROTOCOL_IMON |

				  IMON_IR_PROTOCOL_IMON_NOPAD,

};



enum {

	IMON_KEY_IMON	= 0,

	IMON_KEY_MCE	= 1,
@@ -330,12 +315,10 @@ module_param(display_type, int, S_IRUGO); 
MODULE_PARM_DESC(display_type, "Type of attached display. 0=autodetect, "

		 "1=vfd, 2=lcd, 3=vga, 4=none (default: autodetect)");



/* IR protocol: native iMON, Windows MCE (RC-6), or iMON w/o PAD stabilize */

static int ir_protocol;

module_param(ir_protocol, int, S_IRUGO | S_IWUSR);

MODULE_PARM_DESC(ir_protocol, "Which IR protocol to use. 0=auto-detect, "

		 "1=Windows Media Center Ed. (RC-6), 2=iMON native, "

		 "4=iMON w/o PAD stabilize (default: auto-detect)");

static int pad_stabilize = 1;

module_param(pad_stabilize, int, S_IRUGO | S_IWUSR);

MODULE_PARM_DESC(pad_stabilize, "Apply stabilization algorithm to iMON PAD "

		 "presses in arrow key mode. 0=disable, 1=enable (default).");



/*

 * In certain use cases, mouse mode isn't really helpful, and could actually
@@ -1007,72 +990,67 @@ static void imon_touch_display_timeout(unsigned long data) 
 * really just RC-6), but only one or the other at a time, as the signals

 * are decoded onboard the receiver.

 */

static void imon_set_ir_protocol(struct imon_context *ictx)

int imon_ir_change_protocol(void *priv, u64 ir_type)

{

	int retval;

	struct imon_context *ictx = priv;

	struct device *dev = ictx->dev;

	bool pad_mouse;

	unsigned char ir_proto_packet[] = {

		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x86 };



	if (ir_protocol && !(ir_protocol & ictx->ir_proto_mask))

	if (!(ir_type & ictx->props->allowed_protos))

		dev_warn(dev, "Looks like you're trying to use an IR protocol "

			 "this device does not support\n");



	switch (ir_protocol) {

	case IMON_IR_PROTOCOL_AUTO:

		if (ictx->product == 0xffdc) {

			if (ictx->ir_proto_mask & IMON_IR_PROTO_MASK_MCE) {

				ir_proto_packet[0] = 0x01;

				ictx->ir_protocol = IMON_IR_PROTOCOL_MCE;

				ictx->pad_mouse = 0;

				init_timer(&ictx->itimer);

				ictx->itimer.data = (unsigned long)ictx;

				ictx->itimer.function = imon_mce_timeout;

			} else {

				ictx->ir_protocol = IMON_IR_PROTOCOL_IMON;

				ictx->pad_mouse = 1;

			}

		}

		break;

	case IMON_IR_PROTOCOL_MCE:

	switch (ir_type) {

	case IR_TYPE_RC6:

		dev_dbg(dev, "Configuring IR receiver for MCE protocol\n");

		ir_proto_packet[0] = 0x01;

		ictx->ir_protocol = IMON_IR_PROTOCOL_MCE;

		ictx->pad_mouse = 0;

		pad_mouse = false;

		init_timer(&ictx->itimer);

		ictx->itimer.data = (unsigned long)ictx;

		ictx->itimer.function = imon_mce_timeout;

		break;

	case IMON_IR_PROTOCOL_IMON:

		dev_dbg(dev, "Configuring IR receiver for iMON protocol\n");

		/* ir_proto_packet[0] = 0x00; // already the default */

		ictx->ir_protocol = IMON_IR_PROTOCOL_IMON;

		ictx->pad_mouse = 1;

		break;

	case IMON_IR_PROTOCOL_IMON_NOPAD:

		dev_dbg(dev, "Configuring IR receiver for iMON protocol "

			"without PAD stabilize function enabled\n");

	case IR_TYPE_UNKNOWN:

	case IR_TYPE_OTHER:

		dev_dbg(dev, "Configuring IR receiver for iMON protocol");

		if (pad_stabilize) {

			printk(KERN_CONT "\n");

			pad_mouse = true;

		} else {

			printk(KERN_CONT " (without PAD stabilization)\n");

			pad_mouse = false;

		}

		/* ir_proto_packet[0] = 0x00; // already the default */

		ictx->ir_protocol = IMON_IR_PROTOCOL_IMON_NOPAD;

		ictx->pad_mouse = 0;

		ir_type = IR_TYPE_OTHER;

		break;

	default:

		dev_info(dev, "%s: unknown IR protocol specified, will "

			 "just default to iMON protocol\n", __func__);

		ictx->ir_protocol = IMON_IR_PROTOCOL_IMON;

		ictx->pad_mouse = 1;

		dev_warn(dev, "Unsupported IR protocol specified, overriding "

			 "to iMON IR protocol");

		if (pad_stabilize) {

			printk(KERN_CONT "\n");

			pad_mouse = true;

		} else {

			printk(KERN_CONT " (without PAD stabilization)\n");

			pad_mouse = false;

		}

		/* ir_proto_packet[0] = 0x00; // already the default */

		ir_type = IR_TYPE_OTHER;

		break;

	}



	memcpy(ictx->usb_tx_buf, &ir_proto_packet, sizeof(ir_proto_packet));



	retval = send_packet(ictx);

	if (retval) {

		dev_info(dev, "%s: failed to set IR protocol, falling back "

			 "to standard iMON protocol mode\n", __func__);

		ir_protocol = IMON_IR_PROTOCOL_IMON;

		ictx->ir_protocol = IMON_IR_PROTOCOL_IMON;

	}

	if (retval)

		goto out;



	ictx->ir_type = ir_type;

	ictx->pad_mouse = pad_mouse;



out:

	return retval;

}



static inline int tv2int(const struct timeval *a, const struct timeval *b)
@@ -1329,7 +1307,7 @@ static void imon_pad_to_keys(struct imon_context *ictx, unsigned char *buf) 
		rel_x = buf[2];

		rel_y = buf[3];



		if (ictx->ir_protocol == IMON_IR_PROTOCOL_IMON) {

		if (ictx->ir_type == IR_TYPE_OTHER && pad_stabilize) {

			if ((buf[1] == 0) && ((rel_x != 0) || (rel_y != 0))) {

				dir = stabilize((int)rel_x, (int)rel_y,

						timeout, threshold);
@@ -1386,7 +1364,7 @@ static void imon_pad_to_keys(struct imon_context *ictx, unsigned char *buf) 
		buf[0] = 0x01;

		buf[1] = buf[4] = buf[5] = buf[6] = buf[7] = 0;



		if (ictx->ir_protocol == IMON_IR_PROTOCOL_IMON) {

		if (ictx->ir_type == IR_TYPE_OTHER && pad_stabilize) {

			dir = stabilize((int)rel_x, (int)rel_y,

					timeout, threshold);

			if (!dir) {
@@ -1499,7 +1477,7 @@ static void imon_incoming_packet(struct imon_context *ictx, 
		kc = imon_panel_key_lookup(panel_key);

	} else {

		remote_key = (u32) (le64_to_cpu(temp_key) & 0xffffffff);

		if (ictx->ir_protocol == IMON_IR_PROTOCOL_MCE) {

		if (ictx->ir_type == IR_TYPE_RC6) {

			if (buf[0] == 0x80)

				ktype = IMON_KEY_MCE;

			kc = imon_mce_key_lookup(ictx, remote_key);
@@ -1680,12 +1658,6 @@ static struct input_dev *imon_init_idev(struct imon_context *ictx) 
	struct ir_dev_props *props;

	struct ir_input_dev *ir;

	int ret, i;

	char *ir_codes = NULL;



	if (ir_protocol == IMON_IR_PROTOCOL_MCE)

		ir_codes = RC_MAP_IMON_MCE;

	else

		ir_codes = RC_MAP_IMON_PAD;



	idev = input_allocate_device();

	if (!idev) {
@@ -1727,8 +1699,12 @@ static struct input_dev *imon_init_idev(struct imon_context *ictx) 
		__set_bit(kc, idev->keybit);

	}



	props->priv = ictx;

	props->driver_type = RC_DRIVER_SCANCODE;

	props->allowed_protos = IR_TYPE_UNKNOWN;

	/* IR_TYPE_OTHER maps to iMON PAD remote, IR_TYPE_RC6 to MCE remote */

	props->allowed_protos = IR_TYPE_OTHER | IR_TYPE_RC6;

	props->change_protocol = imon_ir_change_protocol;

	ictx->props = props;



	ictx->ir = ir;

	memcpy(&ir->dev, ictx->dev, sizeof(struct device));
@@ -1738,7 +1714,7 @@ static struct input_dev *imon_init_idev(struct imon_context *ictx) 


	input_set_drvdata(idev, ir);



	ret = ir_input_register(idev, ir_codes, props, MOD_NAME);

	ret = ir_input_register(idev, RC_MAP_IMON_PAD, props, MOD_NAME);

	if (ret < 0) {

		dev_err(ictx->dev, "remote input dev register failed\n");

		goto idev_register_failed;
@@ -2058,13 +2034,14 @@ rx_urb_alloc_failed: 
 * is no actual data to report. However, byte 6 of this buffer looks like

 * its unique across device variants, so we're trying to key off that to

 * figure out which display type (if any) and what IR protocol the device

 * actually supports.

 * actually supports. These devices have their IR protocol hard-coded into

 * their firmware, they can't be changed on the fly like the newer hardware.

 */

static void imon_get_ffdc_type(struct imon_context *ictx)

{

	u8 ffdc_cfg_byte = ictx->usb_rx_buf[6];

	u8 detected_display_type = IMON_DISPLAY_TYPE_NONE;

	u8 ir_proto_mask = IMON_IR_PROTO_MASK_IMON;

	u64 allowed_protos = IR_TYPE_OTHER;



	switch (ffdc_cfg_byte) {

	/* iMON Knob, no display, iMON IR + vol knob */
@@ -2076,7 +2053,6 @@ static void imon_get_ffdc_type(struct imon_context *ictx) 
	case 0x35:

		dev_info(ictx->dev, "0xffdc iMON VFD + knob, no IR");

		detected_display_type = IMON_DISPLAY_TYPE_VFD;

		ir_proto_mask = IMON_IR_PROTO_MASK_NONE;

		break;

	/* iMON VFD, iMON IR */

	case 0x24:
@@ -2088,7 +2064,7 @@ static void imon_get_ffdc_type(struct imon_context *ictx) 
	case 0x9f:

		dev_info(ictx->dev, "0xffdc iMON LCD, MCE IR");

		detected_display_type = IMON_DISPLAY_TYPE_LCD;

		ir_proto_mask = IMON_IR_PROTO_MASK_MCE;

		allowed_protos = IR_TYPE_RC6;

		break;

	default:

		dev_info(ictx->dev, "Unknown 0xffdc device, "
@@ -2097,10 +2073,11 @@ static void imon_get_ffdc_type(struct imon_context *ictx) 
		break;

	}



	printk(" (id 0x%02x)\n", ffdc_cfg_byte);

	printk(KERN_CONT " (id 0x%02x)\n", ffdc_cfg_byte);



	ictx->display_type = detected_display_type;

	ictx->ir_proto_mask = ir_proto_mask;

	ictx->props->allowed_protos = allowed_protos;

	ictx->ir_type = allowed_protos;

}



static void imon_set_display_type(struct imon_context *ictx,
@@ -2255,9 +2232,6 @@ static int __devinit imon_probe(struct usb_interface *interface, 


		if (product == 0xffdc)

			imon_get_ffdc_type(ictx);

		else

			ictx->ir_proto_mask = IMON_IR_PROTO_MASK_MCE |

					      IMON_IR_PROTO_MASK_IMON;



		imon_set_display_type(ictx, interface);
@@ -2266,7 +2240,12 @@ static int __devinit imon_probe(struct usb_interface *interface, 
	}



	/* set IR protocol/remote type */

	imon_set_ir_protocol(ictx);

	ret = imon_ir_change_protocol(ictx, ictx->ir_type);

	if (ret) {

		dev_warn(dev, "%s: failed to set IR protocol, falling back "

			 "to standard iMON protocol mode\n", __func__);

		ictx->ir_type = IR_TYPE_OTHER;

	}



	dev_info(dev, "iMON device (%04x:%04x, intf%d) on "

		 "usb<%d:%d> initialized\n", vendor, product, ifnum,
@@ -2343,7 +2322,7 @@ static void __devexit imon_disconnect(struct usb_interface *interface) 
		if (!ictx->display_isopen)

			free_imon_context(ictx);

	} else {

		if (ictx->ir_protocol == IMON_IR_PROTOCOL_MCE)

		if (ictx->ir_type == IR_TYPE_RC6)

			del_timer_sync(&ictx->itimer);

		mutex_unlock(&ictx->lock);

	}

drivers/media/IR/keymaps/rc-imon-mce.c

+2 −2
Original line number Diff line number Diff line
@@ -119,8 +119,8 @@ static struct rc_keymap imon_mce_map = { 
	.map = {

		.scan    = imon_mce,

		.size    = ARRAY_SIZE(imon_mce),

		/* its actually RC6, but w/a hardware decoder */

		.ir_type = IR_TYPE_UNKNOWN,

		/* its RC6, but w/a hardware decoder */

		.ir_type = IR_TYPE_RC6,

		.name    = RC_MAP_IMON_MCE,

	}

};

drivers/media/IR/keymaps/rc-imon-pad.c

+2 −1
Original line number Diff line number Diff line
@@ -133,7 +133,8 @@ static struct rc_keymap imon_pad_map = { 
	.map = {

		.scan    = imon_pad,

		.size    = ARRAY_SIZE(imon_pad),

		.ir_type = IR_TYPE_UNKNOWN,

		/* actual protocol details unknown, hardware decoder */

		.ir_type = IR_TYPE_OTHER,

		.name    = RC_MAP_IMON_PAD,

	}

};

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