drivers/media/dvb/dvb-usb/cinergyT2-core.c - maze/linux - Git at Google

 /*
  * TerraTec Cinergy T2/qanu USB2 DVB-T adapter.
  *
  * Copyright (C) 2007 Tomi Orava (tomimo@ncircle.nullnet.fi)
  *
  * Based on the dvb-usb-framework code and the
  * original Terratec Cinergy T2 driver by:
  *
  * Copyright (C) 2004 Daniel Mack <daniel@qanu.de> and
  *		    Holger Waechtler <holger@qanu.de>
  *
  *  Protocol Spec published on http://qanu.de/specs/terratec_cinergyT2.pdf
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  *
  */

 #include "cinergyT2.h"


 /* debug */
 int dvb_usb_cinergyt2_debug;

 module_param_named(debug, dvb_usb_cinergyt2_debug, int, 0644);
 MODULE_PARM_DESC(debug, "set debugging level (1=info, xfer=2, rc=4 "
 		"(or-able)).");

 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);

 struct cinergyt2_state {
 	u8 rc_counter;
 };

 /* We are missing a release hook with usb_device data */
 static struct dvb_usb_device *cinergyt2_usb_device;

 static struct dvb_usb_device_properties cinergyt2_properties;

 static int cinergyt2_streaming_ctrl(struct dvb_usb_adapter *adap, int enable)
 {
 	char buf[] = { CINERGYT2_EP1_CONTROL_STREAM_TRANSFER, enable ? 1 : 0 };
 	char result[64];
 	return dvb_usb_generic_rw(adap->dev, buf, sizeof(buf), result,
 				sizeof(result), 0);
 }

 static int cinergyt2_power_ctrl(struct dvb_usb_device *d, int enable)
 {
 	char buf[] = { CINERGYT2_EP1_SLEEP_MODE, enable ? 0 : 1 };
 	char state[3];
 	return dvb_usb_generic_rw(d, buf, sizeof(buf), state, sizeof(state), 0);
 }

 static int cinergyt2_frontend_attach(struct dvb_usb_adapter *adap)
 {
 	char query[] = { CINERGYT2_EP1_GET_FIRMWARE_VERSION };
 	char state[3];
 	int ret;

 	adap->fe = cinergyt2_fe_attach(adap->dev);

 	ret = dvb_usb_generic_rw(adap->dev, query, sizeof(query), state,
 				sizeof(state), 0);
 	if (ret < 0) {
 		deb_rc("cinergyt2_power_ctrl() Failed to retrieve sleep "
 			"state info\n");
 	}

 	/* Copy this pointer as we are gonna need it in the release phase */
 	cinergyt2_usb_device = adap->dev;

 	return 0;
 }

 static struct dvb_usb_rc_key cinergyt2_rc_keys[] = {
 	{ 0x0401, KEY_POWER },
 	{ 0x0402, KEY_1 },
 	{ 0x0403, KEY_2 },
 	{ 0x0404, KEY_3 },
 	{ 0x0405, KEY_4 },
 	{ 0x0406, KEY_5 },
 	{ 0x0407, KEY_6 },
 	{ 0x0408, KEY_7 },
 	{ 0x0409, KEY_8 },
 	{ 0x040a, KEY_9 },
 	{ 0x040c, KEY_0 },
 	{ 0x040b, KEY_VIDEO },
 	{ 0x040d, KEY_REFRESH },
 	{ 0x040e, KEY_SELECT },
 	{ 0x040f, KEY_EPG },
 	{ 0x0410, KEY_UP },
 	{ 0x0414, KEY_DOWN },
 	{ 0x0411, KEY_LEFT },
 	{ 0x0413, KEY_RIGHT },
 	{ 0x0412, KEY_OK },
 	{ 0x0415, KEY_TEXT },
 	{ 0x0416, KEY_INFO },
 	{ 0x0417, KEY_RED },
 	{ 0x0418, KEY_GREEN },
 	{ 0x0419, KEY_YELLOW },
 	{ 0x041a, KEY_BLUE },
 	{ 0x041c, KEY_VOLUMEUP },
 	{ 0x041e, KEY_VOLUMEDOWN },
 	{ 0x041d, KEY_MUTE },
 	{ 0x041b, KEY_CHANNELUP },
 	{ 0x041f, KEY_CHANNELDOWN },
 	{ 0x0440, KEY_PAUSE },
 	{ 0x044c, KEY_PLAY },
 	{ 0x0458, KEY_RECORD },
 	{ 0x0454, KEY_PREVIOUS },
 	{ 0x0448, KEY_STOP },
 	{ 0x045c, KEY_NEXT }
 };

 /* Number of keypresses to ignore before detect repeating */
 #define RC_REPEAT_DELAY 3

 static int repeatable_keys[] = {
 	KEY_UP,
 	KEY_DOWN,
 	KEY_LEFT,
 	KEY_RIGHT,
 	KEY_VOLUMEUP,
 	KEY_VOLUMEDOWN,
 	KEY_CHANNELUP,
 	KEY_CHANNELDOWN
 };

 static int cinergyt2_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
 {
 	struct cinergyt2_state *st = d->priv;
 	u8 key[5] = {0, 0, 0, 0, 0}, cmd = CINERGYT2_EP1_GET_RC_EVENTS;
 	int i;

 	*state = REMOTE_NO_KEY_PRESSED;

 	dvb_usb_generic_rw(d, &cmd, 1, key, sizeof(key), 0);
 	if (key[4] == 0xff) {
 		/* key repeat */
 		st->rc_counter++;
 		if (st->rc_counter > RC_REPEAT_DELAY) {
 			for (i = 0; i < ARRAY_SIZE(repeatable_keys); i++) {
 				if (d->last_event == repeatable_keys[i]) {
 					*state = REMOTE_KEY_REPEAT;
 					*event = d->last_event;
 					deb_rc("repeat key, event %x\n",
 						   *event);
 					return 0;
 				}
 			}
 			deb_rc("repeated key (non repeatable)\n");
 		}
 		return 0;
 	}

 	/* hack to pass checksum on the custom field */
 	key[2] = ~key[1];
 	dvb_usb_nec_rc_key_to_event(d, key, event, state);
 	if (key[0] != 0) {
 		if (*event != d->last_event)
 			st->rc_counter = 0;

 		deb_rc("key: %x %x %x %x %x\n",
 		       key[0], key[1], key[2], key[3], key[4]);
 	}
 	return 0;
 }

 static int cinergyt2_usb_probe(struct usb_interface *intf,
 				const struct usb_device_id *id)
 {
 	return dvb_usb_device_init(intf, &cinergyt2_properties,
 					THIS_MODULE, NULL, adapter_nr);
 }


 static struct usb_device_id cinergyt2_usb_table[] = {
 	{ USB_DEVICE(USB_VID_TERRATEC, 0x0038) },
 	{ 0 }
 };

 MODULE_DEVICE_TABLE(usb, cinergyt2_usb_table);

 static struct dvb_usb_device_properties cinergyt2_properties = {
 	.size_of_priv = sizeof(struct cinergyt2_state),
 	.num_adapters = 1,
 	.adapter = {
 		{
 			.streaming_ctrl   = cinergyt2_streaming_ctrl,
 			.frontend_attach  = cinergyt2_frontend_attach,

 			/* parameter for the MPEG2-data transfer */
 			.stream = {
 				.type = USB_BULK,
 				.count = 5,
 				.endpoint = 0x02,
 				.u = {
 					.bulk = {
 						.buffersize = 512,
 					}
 				}
 			},
 		}
 	},

 	.power_ctrl       = cinergyt2_power_ctrl,

 	.rc_interval      = 50,
 	.rc_key_map       = cinergyt2_rc_keys,
 	.rc_key_map_size  = ARRAY_SIZE(cinergyt2_rc_keys),
 	.rc_query         = cinergyt2_rc_query,

 	.generic_bulk_ctrl_endpoint = 1,

 	.num_device_descs = 1,
 	.devices = {
 		{ .name = "TerraTec/qanu USB2.0 Highspeed DVB-T Receiver",
 		  .cold_ids = {NULL},
 		  .warm_ids = { &cinergyt2_usb_table[0], NULL },
 		},
 		{ NULL },
 	}
 };


 static struct usb_driver cinergyt2_driver = {
 	.name		= "cinergyT2",
 	.probe		= cinergyt2_usb_probe,
 	.disconnect	= dvb_usb_device_exit,
 	.id_table	= cinergyt2_usb_table
 };

 static int __init cinergyt2_usb_init(void)
 {
 	int err;

 	err = usb_register(&cinergyt2_driver);
 	if (err) {
 		err("usb_register() failed! (err %i)\n", err);
 		return err;
 	}
 	return 0;
 }

 static void __exit cinergyt2_usb_exit(void)
 {
 	usb_deregister(&cinergyt2_driver);
 }

 module_init(cinergyt2_usb_init);
 module_exit(cinergyt2_usb_exit);

 MODULE_DESCRIPTION("Terratec Cinergy T2 DVB-T driver");
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Tomi Orava");
	/*
	* TerraTec Cinergy T2/qanu USB2 DVB-T adapter.
	*
	* Copyright (C) 2007 Tomi Orava (tomimo@ncircle.nullnet.fi)
	*
	* Based on the dvb-usb-framework code and the
	* original Terratec Cinergy T2 driver by:
	*
	* Copyright (C) 2004 Daniel Mack <daniel@qanu.de> and
	* Holger Waechtler <holger@qanu.de>
	*
	* Protocol Spec published on http://qanu.de/specs/terratec_cinergyT2.pdf
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License as published by
	* the Free Software Foundation; either version 2 of the License, or
	* (at your option) any later version.
	*
	* This program is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	* GNU General Public License for more details.
	*
	* You should have received a copy of the GNU General Public License
	* along with this program; if not, write to the Free Software
	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	*
	*/

	#include "cinergyT2.h"


	/* debug */
	int dvb_usb_cinergyt2_debug;

	module_param_named(debug, dvb_usb_cinergyt2_debug, int, 0644);
	MODULE_PARM_DESC(debug, "set debugging level (1=info, xfer=2, rc=4 "
	"(or-able)).");

	DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);

	struct cinergyt2_state {
	u8 rc_counter;
	};

	/* We are missing a release hook with usb_device data */
	static struct dvb_usb_device *cinergyt2_usb_device;

	static struct dvb_usb_device_properties cinergyt2_properties;

	static int cinergyt2_streaming_ctrl(struct dvb_usb_adapter *adap, int enable)
	{
	char buf[] = { CINERGYT2_EP1_CONTROL_STREAM_TRANSFER, enable ? 1 : 0 };
	char result[64];
	return dvb_usb_generic_rw(adap->dev, buf, sizeof(buf), result,
	sizeof(result), 0);
	}

	static int cinergyt2_power_ctrl(struct dvb_usb_device *d, int enable)
	{
	char buf[] = { CINERGYT2_EP1_SLEEP_MODE, enable ? 0 : 1 };
	char state[3];
	return dvb_usb_generic_rw(d, buf, sizeof(buf), state, sizeof(state), 0);
	}

	static int cinergyt2_frontend_attach(struct dvb_usb_adapter *adap)
	{
	char query[] = { CINERGYT2_EP1_GET_FIRMWARE_VERSION };
	char state[3];
	int ret;

	adap->fe = cinergyt2_fe_attach(adap->dev);

	ret = dvb_usb_generic_rw(adap->dev, query, sizeof(query), state,
	sizeof(state), 0);
	if (ret < 0) {
	deb_rc("cinergyt2_power_ctrl() Failed to retrieve sleep "
	"state info\n");
	}

	/* Copy this pointer as we are gonna need it in the release phase */
	cinergyt2_usb_device = adap->dev;

	return 0;
	}

	static struct dvb_usb_rc_key cinergyt2_rc_keys[] = {
	{ 0x0401, KEY_POWER },
	{ 0x0402, KEY_1 },
	{ 0x0403, KEY_2 },
	{ 0x0404, KEY_3 },
	{ 0x0405, KEY_4 },
	{ 0x0406, KEY_5 },
	{ 0x0407, KEY_6 },
	{ 0x0408, KEY_7 },
	{ 0x0409, KEY_8 },
	{ 0x040a, KEY_9 },
	{ 0x040c, KEY_0 },
	{ 0x040b, KEY_VIDEO },
	{ 0x040d, KEY_REFRESH },
	{ 0x040e, KEY_SELECT },
	{ 0x040f, KEY_EPG },
	{ 0x0410, KEY_UP },
	{ 0x0414, KEY_DOWN },
	{ 0x0411, KEY_LEFT },
	{ 0x0413, KEY_RIGHT },
	{ 0x0412, KEY_OK },
	{ 0x0415, KEY_TEXT },
	{ 0x0416, KEY_INFO },
	{ 0x0417, KEY_RED },
	{ 0x0418, KEY_GREEN },
	{ 0x0419, KEY_YELLOW },
	{ 0x041a, KEY_BLUE },
	{ 0x041c, KEY_VOLUMEUP },
	{ 0x041e, KEY_VOLUMEDOWN },
	{ 0x041d, KEY_MUTE },
	{ 0x041b, KEY_CHANNELUP },
	{ 0x041f, KEY_CHANNELDOWN },
	{ 0x0440, KEY_PAUSE },
	{ 0x044c, KEY_PLAY },
	{ 0x0458, KEY_RECORD },
	{ 0x0454, KEY_PREVIOUS },
	{ 0x0448, KEY_STOP },
	{ 0x045c, KEY_NEXT }
	};

	/* Number of keypresses to ignore before detect repeating */
	#define RC_REPEAT_DELAY 3

	static int repeatable_keys[] = {
	KEY_UP,
	KEY_DOWN,
	KEY_LEFT,
	KEY_RIGHT,
	KEY_VOLUMEUP,
	KEY_VOLUMEDOWN,
	KEY_CHANNELUP,
	KEY_CHANNELDOWN
	};

	static int cinergyt2_rc_query(struct dvb_usb_device d, u32 event, int *state)
	{
	struct cinergyt2_state *st = d->priv;
	u8 key[5] = {0, 0, 0, 0, 0}, cmd = CINERGYT2_EP1_GET_RC_EVENTS;
	int i;

	*state = REMOTE_NO_KEY_PRESSED;

	dvb_usb_generic_rw(d, &cmd, 1, key, sizeof(key), 0);
	if (key[4] == 0xff) {
	/* key repeat */
	st->rc_counter++;
	if (st->rc_counter > RC_REPEAT_DELAY) {
	for (i = 0; i < ARRAY_SIZE(repeatable_keys); i++) {
	if (d->last_event == repeatable_keys[i]) {
	*state = REMOTE_KEY_REPEAT;
	*event = d->last_event;
	deb_rc("repeat key, event %x\n",
	*event);
	return 0;
	}
	}
	deb_rc("repeated key (non repeatable)\n");
	}
	return 0;
	}

	/* hack to pass checksum on the custom field */
	key[2] = ~key[1];
	dvb_usb_nec_rc_key_to_event(d, key, event, state);
	if (key[0] != 0) {
	if (*event != d->last_event)
	st->rc_counter = 0;

	deb_rc("key: %x %x %x %x %x\n",
	key[0], key[1], key[2], key[3], key[4]);
	}
	return 0;
	}

	static int cinergyt2_usb_probe(struct usb_interface *intf,
	const struct usb_device_id *id)
	{
	return dvb_usb_device_init(intf, &cinergyt2_properties,
	THIS_MODULE, NULL, adapter_nr);
	}


	static struct usb_device_id cinergyt2_usb_table[] = {
	{ USB_DEVICE(USB_VID_TERRATEC, 0x0038) },
	{ 0 }
	};

	MODULE_DEVICE_TABLE(usb, cinergyt2_usb_table);

	static struct dvb_usb_device_properties cinergyt2_properties = {
	.size_of_priv = sizeof(struct cinergyt2_state),
	.num_adapters = 1,
	.adapter = {
	{
	.streaming_ctrl = cinergyt2_streaming_ctrl,
	.frontend_attach = cinergyt2_frontend_attach,

	/* parameter for the MPEG2-data transfer */
	.stream = {
	.type = USB_BULK,
	.count = 5,
	.endpoint = 0x02,
	.u = {
	.bulk = {
	.buffersize = 512,
	}
	}
	},
	}
	},

	.power_ctrl = cinergyt2_power_ctrl,

	.rc_interval = 50,
	.rc_key_map = cinergyt2_rc_keys,
	.rc_key_map_size = ARRAY_SIZE(cinergyt2_rc_keys),
	.rc_query = cinergyt2_rc_query,

	.generic_bulk_ctrl_endpoint = 1,

	.num_device_descs = 1,
	.devices = {
	{ .name = "TerraTec/qanu USB2.0 Highspeed DVB-T Receiver",
	.cold_ids = {NULL},
	.warm_ids = { &cinergyt2_usb_table[0], NULL },
	},
	{ NULL },
	}
	};


	static struct usb_driver cinergyt2_driver = {
	.name = "cinergyT2",
	.probe = cinergyt2_usb_probe,
	.disconnect = dvb_usb_device_exit,
	.id_table = cinergyt2_usb_table
	};

	static int __init cinergyt2_usb_init(void)
	{
	int err;

	err = usb_register(&cinergyt2_driver);
	if (err) {
	err("usb_register() failed! (err %i)\n", err);
	return err;
	}
	return 0;
	}

	static void __exit cinergyt2_usb_exit(void)
	{
	usb_deregister(&cinergyt2_driver);
	}

	module_init(cinergyt2_usb_init);
	module_exit(cinergyt2_usb_exit);

	MODULE_DESCRIPTION("Terratec Cinergy T2 DVB-T driver");
	MODULE_LICENSE("GPL");
	MODULE_AUTHOR("Tomi Orava");