drivers/media/usb/dvb-usb/vp7045.c - third_party/kernel - Git at Google

 /* DVB USB compliant Linux driver for the
  *  - TwinhanDTV Alpha/MagicBoxII USB2.0 DVB-T receiver
  *  - DigitalNow TinyUSB2 DVB-t receiver
  *
  * Copyright (C) 2004-5 Patrick Boettcher (patrick.boettcher@posteo.de)
  *
  * Thanks to Twinhan who kindly provided hardware and information.
  *
  *	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, version 2.
  *
  * see Documentation/media/dvb-drivers/dvb-usb.rst for more information
  */
 #include "vp7045.h"

 /* debug */
 static int dvb_usb_vp7045_debug;
 module_param_named(debug,dvb_usb_vp7045_debug, int, 0644);
 MODULE_PARM_DESC(debug, "set debugging level (1=info,xfer=2,rc=4 (or-able))." DVB_USB_DEBUG_STATUS);

 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);

 #define deb_info(args...) dprintk(dvb_usb_vp7045_debug,0x01,args)
 #define deb_xfer(args...) dprintk(dvb_usb_vp7045_debug,0x02,args)
 #define deb_rc(args...)   dprintk(dvb_usb_vp7045_debug,0x04,args)

 int vp7045_usb_op(struct dvb_usb_device *d, u8 cmd, u8 *out, int outlen, u8 *in, int inlen, int msec)
 {
 	int ret = 0;
 	u8 *buf = d->priv;

 	buf[0] = cmd;

 	if (outlen > 19)
 		outlen = 19;

 	if (inlen > 11)
 		inlen = 11;

 	ret = mutex_lock_interruptible(&d->usb_mutex);
 	if (ret)
 		return ret;

 	if (out != NULL && outlen > 0)
 		memcpy(&buf[1], out, outlen);

 	deb_xfer("out buffer: ");
 	debug_dump(buf, outlen+1, deb_xfer);


 	if (usb_control_msg(d->udev,
 			usb_sndctrlpipe(d->udev,0),
 			TH_COMMAND_OUT, USB_TYPE_VENDOR | USB_DIR_OUT, 0, 0,
 			buf, 20, 2000) != 20) {
 		err("USB control message 'out' went wrong.");
 		ret = -EIO;
 		goto unlock;
 	}

 	msleep(msec);

 	if (usb_control_msg(d->udev,
 			usb_rcvctrlpipe(d->udev,0),
 			TH_COMMAND_IN, USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
 			buf, 12, 2000) != 12) {
 		err("USB control message 'in' went wrong.");
 		ret = -EIO;
 		goto unlock;
 	}

 	deb_xfer("in buffer: ");
 	debug_dump(buf, 12, deb_xfer);

 	if (in != NULL && inlen > 0)
 		memcpy(in, &buf[1], inlen);

 unlock:
 	mutex_unlock(&d->usb_mutex);

 	return ret;
 }

 u8 vp7045_read_reg(struct dvb_usb_device *d, u8 reg)
 {
 	u8 obuf[2] = { 0 },v;
 	obuf[1] = reg;

 	vp7045_usb_op(d,TUNER_REG_READ,obuf,2,&v,1,30);

 	return v;
 }

 static int vp7045_power_ctrl(struct dvb_usb_device *d, int onoff)
 {
 	u8 v = onoff;
 	return vp7045_usb_op(d,SET_TUNER_POWER,&v,1,NULL,0,150);
 }

 static int vp7045_rc_query(struct dvb_usb_device *d)
 {
 	int ret;
 	u8 key;

 	ret = vp7045_usb_op(d, RC_VAL_READ, NULL, 0, &key, 1, 20);
 	if (ret)
 		return ret;

 	deb_rc("remote query key: %x\n", key);

 	if (key != 0x44) {
 		/*
 		 * The 8 bit address isn't available, but since the remote uses
 		 * address 0 we'll use that. nec repeats are ignored too, even
 		 * though the remote sends them.
 		 */
 		rc_keydown(d->rc_dev, RC_PROTO_NEC, RC_SCANCODE_NEC(0, key), 0);
 	}

 	return 0;
 }

 static int vp7045_read_eeprom(struct dvb_usb_device *d,u8 *buf, int len, int offset)
 {
 	int i, ret;
 	u8 v, br[2];
 	for (i=0; i < len; i++) {
 		v = offset + i;
 		ret = vp7045_usb_op(d, GET_EE_VALUE, &v, 1, br, 2, 5);
 		if (ret)
 			return ret;

 		buf[i] = br[1];
 	}
 	deb_info("VP7045 EEPROM read (offs: %d, len: %d) : ", offset, i);
 	debug_dump(buf, i, deb_info);
 	return 0;
 }

 static int vp7045_read_mac_addr(struct dvb_usb_device *d,u8 mac[6])
 {
 	return vp7045_read_eeprom(d,mac, 6, MAC_0_ADDR);
 }

 static int vp7045_frontend_attach(struct dvb_usb_adapter *adap)
 {
 	u8 buf[255] = { 0 };

 	vp7045_usb_op(adap->dev,VENDOR_STRING_READ,NULL,0,buf,20,0);
 	buf[10] = '\0';
 	deb_info("firmware says: %s ",buf);

 	vp7045_usb_op(adap->dev,PRODUCT_STRING_READ,NULL,0,buf,20,0);
 	buf[10] = '\0';
 	deb_info("%s ",buf);

 	vp7045_usb_op(adap->dev,FW_VERSION_READ,NULL,0,buf,20,0);
 	buf[10] = '\0';
 	deb_info("v%s\n",buf);

 /*	Dump the EEPROM */
 /*	vp7045_read_eeprom(d,buf, 255, FX2_ID_ADDR); */

 	adap->fe_adap[0].fe = vp7045_fe_attach(adap->dev);

 	return 0;
 }

 static struct dvb_usb_device_properties vp7045_properties;

 static int vp7045_usb_probe(struct usb_interface *intf,
 		const struct usb_device_id *id)
 {
 	return dvb_usb_device_init(intf, &vp7045_properties,
 				   THIS_MODULE, NULL, adapter_nr);
 }

 static struct usb_device_id vp7045_usb_table [] = {
 	    { USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_TWINHAN_VP7045_COLD) },
 	    { USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_TWINHAN_VP7045_WARM) },
 	    { USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_DNTV_TINYUSB2_COLD) },
 	    { USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_DNTV_TINYUSB2_WARM) },
 	    { 0 },
 };
 MODULE_DEVICE_TABLE(usb, vp7045_usb_table);

 static struct dvb_usb_device_properties vp7045_properties = {
 	.usb_ctrl = CYPRESS_FX2,
 	.firmware = "dvb-usb-vp7045-01.fw",
 	.size_of_priv = 20,

 	.num_adapters = 1,
 	.adapter = {
 		{
 		.num_frontends = 1,
 		.fe = {{
 			.frontend_attach  = vp7045_frontend_attach,
 			/* parameter for the MPEG2-data transfer */
 			.stream = {
 				.type = USB_BULK,
 				.count = 7,
 				.endpoint = 0x02,
 				.u = {
 					.bulk = {
 						.buffersize = 4096,
 					}
 				}
 			},
 		}},
 		}
 	},
 	.power_ctrl       = vp7045_power_ctrl,
 	.read_mac_address = vp7045_read_mac_addr,

 	.rc.core = {
 		.rc_interval	= 400,
 		.rc_codes	= RC_MAP_TWINHAN_VP1027_DVBS,
 		.module_name    = KBUILD_MODNAME,
 		.rc_query	= vp7045_rc_query,
 		.allowed_protos = RC_PROTO_BIT_NEC,
 		.scancode_mask	= 0xff,
 	},

 	.num_device_descs = 2,
 	.devices = {
 		{ .name = "Twinhan USB2.0 DVB-T receiver (TwinhanDTV Alpha/MagicBox II)",
 		  .cold_ids = { &vp7045_usb_table[0], NULL },
 		  .warm_ids = { &vp7045_usb_table[1], NULL },
 		},
 		{ .name = "DigitalNow TinyUSB 2 DVB-t Receiver",
 		  .cold_ids = { &vp7045_usb_table[2], NULL },
 		  .warm_ids = { &vp7045_usb_table[3], NULL },
 		},
 		{ NULL },
 	}
 };

 /* usb specific object needed to register this driver with the usb subsystem */
 static struct usb_driver vp7045_usb_driver = {
 	.name		= "dvb_usb_vp7045",
 	.probe		= vp7045_usb_probe,
 	.disconnect	= dvb_usb_device_exit,
 	.id_table	= vp7045_usb_table,
 };

 module_usb_driver(vp7045_usb_driver);

 MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@posteo.de>");
 MODULE_DESCRIPTION("Driver for Twinhan MagicBox/Alpha and DNTV tinyUSB2 DVB-T USB2.0");
 MODULE_VERSION("1.0");
 MODULE_LICENSE("GPL");
	/* DVB USB compliant Linux driver for the
	* - TwinhanDTV Alpha/MagicBoxII USB2.0 DVB-T receiver
	* - DigitalNow TinyUSB2 DVB-t receiver
	*
	* Copyright (C) 2004-5 Patrick Boettcher (patrick.boettcher@posteo.de)
	*
	* Thanks to Twinhan who kindly provided hardware and information.
	*
	* 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, version 2.
	*
	* see Documentation/media/dvb-drivers/dvb-usb.rst for more information
	*/
	#include "vp7045.h"

	/* debug */
	static int dvb_usb_vp7045_debug;
	module_param_named(debug,dvb_usb_vp7045_debug, int, 0644);
	MODULE_PARM_DESC(debug, "set debugging level (1=info,xfer=2,rc=4 (or-able))." DVB_USB_DEBUG_STATUS);

	DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);

	#define deb_info(args...) dprintk(dvb_usb_vp7045_debug,0x01,args)
	#define deb_xfer(args...) dprintk(dvb_usb_vp7045_debug,0x02,args)
	#define deb_rc(args...) dprintk(dvb_usb_vp7045_debug,0x04,args)

	int vp7045_usb_op(struct dvb_usb_device d, u8 cmd, u8 out, int outlen, u8 *in, int inlen, int msec)
	{
	int ret = 0;
	u8 *buf = d->priv;

	buf[0] = cmd;

	if (outlen > 19)
	outlen = 19;

	if (inlen > 11)
	inlen = 11;

	ret = mutex_lock_interruptible(&d->usb_mutex);
	if (ret)
	return ret;

	if (out != NULL && outlen > 0)
	memcpy(&buf[1], out, outlen);

	deb_xfer("out buffer: ");
	debug_dump(buf, outlen+1, deb_xfer);


	if (usb_control_msg(d->udev,
	usb_sndctrlpipe(d->udev,0),
	TH_COMMAND_OUT, USB_TYPE_VENDOR \| USB_DIR_OUT, 0, 0,
	buf, 20, 2000) != 20) {
	err("USB control message 'out' went wrong.");
	ret = -EIO;
	goto unlock;
	}

	msleep(msec);

	if (usb_control_msg(d->udev,
	usb_rcvctrlpipe(d->udev,0),
	TH_COMMAND_IN, USB_TYPE_VENDOR \| USB_DIR_IN, 0, 0,
	buf, 12, 2000) != 12) {
	err("USB control message 'in' went wrong.");
	ret = -EIO;
	goto unlock;
	}

	deb_xfer("in buffer: ");
	debug_dump(buf, 12, deb_xfer);

	if (in != NULL && inlen > 0)
	memcpy(in, &buf[1], inlen);

	unlock:
	mutex_unlock(&d->usb_mutex);

	return ret;
	}

	u8 vp7045_read_reg(struct dvb_usb_device *d, u8 reg)
	{
	u8 obuf[2] = { 0 },v;
	obuf[1] = reg;

	vp7045_usb_op(d,TUNER_REG_READ,obuf,2,&v,1,30);

	return v;
	}

	static int vp7045_power_ctrl(struct dvb_usb_device *d, int onoff)
	{
	u8 v = onoff;
	return vp7045_usb_op(d,SET_TUNER_POWER,&v,1,NULL,0,150);
	}

	static int vp7045_rc_query(struct dvb_usb_device *d)
	{
	int ret;
	u8 key;

	ret = vp7045_usb_op(d, RC_VAL_READ, NULL, 0, &key, 1, 20);
	if (ret)
	return ret;

	deb_rc("remote query key: %x\n", key);

	if (key != 0x44) {
	/*
	* The 8 bit address isn't available, but since the remote uses
	* address 0 we'll use that. nec repeats are ignored too, even
	* though the remote sends them.
	*/
	rc_keydown(d->rc_dev, RC_PROTO_NEC, RC_SCANCODE_NEC(0, key), 0);
	}

	return 0;
	}

	static int vp7045_read_eeprom(struct dvb_usb_device d,u8 buf, int len, int offset)
	{
	int i, ret;
	u8 v, br[2];
	for (i=0; i < len; i++) {
	v = offset + i;
	ret = vp7045_usb_op(d, GET_EE_VALUE, &v, 1, br, 2, 5);
	if (ret)
	return ret;

	buf[i] = br[1];
	}
	deb_info("VP7045 EEPROM read (offs: %d, len: %d) : ", offset, i);
	debug_dump(buf, i, deb_info);
	return 0;
	}

	static int vp7045_read_mac_addr(struct dvb_usb_device *d,u8 mac[6])
	{
	return vp7045_read_eeprom(d,mac, 6, MAC_0_ADDR);
	}

	static int vp7045_frontend_attach(struct dvb_usb_adapter *adap)
	{
	u8 buf[255] = { 0 };

	vp7045_usb_op(adap->dev,VENDOR_STRING_READ,NULL,0,buf,20,0);
	buf[10] = '\0';
	deb_info("firmware says: %s ",buf);

	vp7045_usb_op(adap->dev,PRODUCT_STRING_READ,NULL,0,buf,20,0);
	buf[10] = '\0';
	deb_info("%s ",buf);

	vp7045_usb_op(adap->dev,FW_VERSION_READ,NULL,0,buf,20,0);
	buf[10] = '\0';
	deb_info("v%s\n",buf);

	/* Dump the EEPROM */
	/* vp7045_read_eeprom(d,buf, 255, FX2_ID_ADDR); */

	adap->fe_adap[0].fe = vp7045_fe_attach(adap->dev);

	return 0;
	}

	static struct dvb_usb_device_properties vp7045_properties;

	static int vp7045_usb_probe(struct usb_interface *intf,
	const struct usb_device_id *id)
	{
	return dvb_usb_device_init(intf, &vp7045_properties,
	THIS_MODULE, NULL, adapter_nr);
	}

	static struct usb_device_id vp7045_usb_table [] = {
	{ USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_TWINHAN_VP7045_COLD) },
	{ USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_TWINHAN_VP7045_WARM) },
	{ USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_DNTV_TINYUSB2_COLD) },
	{ USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_DNTV_TINYUSB2_WARM) },
	{ 0 },
	};
	MODULE_DEVICE_TABLE(usb, vp7045_usb_table);

	static struct dvb_usb_device_properties vp7045_properties = {
	.usb_ctrl = CYPRESS_FX2,
	.firmware = "dvb-usb-vp7045-01.fw",
	.size_of_priv = 20,

	.num_adapters = 1,
	.adapter = {
	{
	.num_frontends = 1,
	.fe = {{
	.frontend_attach = vp7045_frontend_attach,
	/* parameter for the MPEG2-data transfer */
	.stream = {
	.type = USB_BULK,
	.count = 7,
	.endpoint = 0x02,
	.u = {
	.bulk = {
	.buffersize = 4096,
	}
	}
	},
	}},
	}
	},
	.power_ctrl = vp7045_power_ctrl,
	.read_mac_address = vp7045_read_mac_addr,

	.rc.core = {
	.rc_interval = 400,
	.rc_codes = RC_MAP_TWINHAN_VP1027_DVBS,
	.module_name = KBUILD_MODNAME,
	.rc_query = vp7045_rc_query,
	.allowed_protos = RC_PROTO_BIT_NEC,
	.scancode_mask = 0xff,
	},

	.num_device_descs = 2,
	.devices = {
	{ .name = "Twinhan USB2.0 DVB-T receiver (TwinhanDTV Alpha/MagicBox II)",
	.cold_ids = { &vp7045_usb_table[0], NULL },
	.warm_ids = { &vp7045_usb_table[1], NULL },
	},
	{ .name = "DigitalNow TinyUSB 2 DVB-t Receiver",
	.cold_ids = { &vp7045_usb_table[2], NULL },
	.warm_ids = { &vp7045_usb_table[3], NULL },
	},
	{ NULL },
	}
	};

	/* usb specific object needed to register this driver with the usb subsystem */
	static struct usb_driver vp7045_usb_driver = {
	.name = "dvb_usb_vp7045",
	.probe = vp7045_usb_probe,
	.disconnect = dvb_usb_device_exit,
	.id_table = vp7045_usb_table,
	};

	module_usb_driver(vp7045_usb_driver);

	MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@posteo.de>");
	MODULE_DESCRIPTION("Driver for Twinhan MagicBox/Alpha and DNTV tinyUSB2 DVB-T USB2.0");
	MODULE_VERSION("1.0");
	MODULE_LICENSE("GPL");