/* DVB USB compliant Linux driver for the TwinhanDTV StarBox USB2.0 DVB-S * receiver. * * Copyright (C) 2005 Ralph Metzler <rjkm@metzlerbros.de> *                    Metzler Brothers Systementwicklung GbR * * Copyright (C) 2005 Patrick Boettcher <patrick.boettcher@desy.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/dvb/README.dvb-usb for more information */#include "vp702x.h"/* debug */int dvb_usb_vp702x_debug;module_param_named(debug,dvb_usb_vp702x_debug, int, 0644);MODULE_PARM_DESC(debug, "set debugging level (1=info,xfer=2,rc=4 (or-able))." DVB_USB_DEBUG_STATUS);struct vp702x_state {	u8 pid_table[17]; /* [16] controls the pid_table state */};/* check for mutex FIXME */int vp702x_usb_in_op(struct dvb_usb_device *d, u8 req, u16 value, u16 index, u8 *b, int blen){	int ret = 0,try = 0;	while (ret >= 0 && ret != blen && try < 3) {		ret = usb_control_msg(d->udev,			usb_rcvctrlpipe(d->udev,0),			req,			USB_TYPE_VENDOR | USB_DIR_IN,			value,index,b,blen,			2000);		deb_info("reading number %d (ret: %d)\n",try,ret);		try++;	}	if (ret < 0 || ret != blen) {		warn("usb in operation failed.");		ret = -EIO;	} else		ret = 0;	deb_xfer("in: req. %x, val: %x, ind: %x, buffer: ",req,value,index);	debug_dump(b,blen,deb_xfer);	return ret;}static int vp702x_usb_out_op(struct dvb_usb_device *d, u8 req, u16 value,			     u16 index, u8 *b, int blen){	deb_xfer("out: req. %x, val: %x, ind: %x, buffer: ",req,value,index);	debug_dump(b,blen,deb_xfer);	if (usb_control_msg(d->udev,			usb_sndctrlpipe(d->udev,0),			req,			USB_TYPE_VENDOR | USB_DIR_OUT,			value,index,b,blen,			2000) != blen) {		warn("usb out operation failed.");		return -EIO;	} else		return 0;}int vp702x_usb_inout_op(struct dvb_usb_device *d, u8 *o, int olen, u8 *i, int ilen, int msec){	int ret;	if ((ret = mutex_lock_interruptible(&d->usb_mutex)))		return ret;	if ((ret = vp702x_usb_out_op(d,REQUEST_OUT,0,0,o,olen)) < 0)		goto unlock;	msleep(msec);	ret = vp702x_usb_in_op(d,REQUEST_IN,0,0,i,ilen);unlock:	mutex_unlock(&d->usb_mutex);	return ret;}static int vp702x_usb_inout_cmd(struct dvb_usb_device *d, u8 cmd, u8 *o,				int olen, u8 *i, int ilen, int msec){	u8 bout[olen+2];	u8 bin[ilen+1];	int ret = 0;	bout[0] = 0x00;	bout[1] = cmd;	memcpy(&bout[2],o,olen);	ret = vp702x_usb_inout_op(d, bout, olen+2, bin, ilen+1,msec);	if (ret == 0)		memcpy(i,&bin[1],ilen);	return ret;}static int vp702x_pid_filter(struct dvb_usb_device *d, int index, u16 pid, int onoff){	struct vp702x_state *st = d->priv;	u8 buf[9];	if (onoff) {		st->pid_table[16]   |=   1 << index;		st->pid_table[index*2]   = (pid >> 8) & 0xff;		st->pid_table[index*2+1] =  pid       & 0xff;	} else {		st->pid_table[16]   &= ~(1 << index);		st->pid_table[index*2] = st->pid_table[index*2+1] = 0;	}	return vp702x_usb_inout_cmd(d,SET_PID_FILTER,st->pid_table,17,buf,9,10);}static int vp702x_power_ctrl(struct dvb_usb_device *d, int onoff){	vp702x_usb_in_op(d,RESET_TUNER,0,0,NULL,0);	vp702x_usb_in_op(d,SET_TUNER_POWER_REQ,0,onoff,NULL,0);	return vp702x_usb_in_op(d,SET_TUNER_POWER_REQ,0,onoff,NULL,0);}/* keys for the enclosed remote control */static struct dvb_usb_rc_key vp702x_rc_keys[] = {	{ 0x00, 0x01, KEY_1 },	{ 0x00, 0x02, KEY_2 },};/* remote control stuff (does not work with my box) */static int vp702x_rc_query(struct dvb_usb_device *d, u32 *event, int *state){	u8 key[10];	int i;/* remove the following return to enabled remote querying */	return 0;	vp702x_usb_in_op(d,READ_REMOTE_REQ,0,0,key,10);	deb_rc("remote query key: %x %d\n",key[1],key[1]);	if (key[1] == 0x44) {		*state = REMOTE_NO_KEY_PRESSED;		return 0;	}	for (i = 0; i < ARRAY_SIZE(vp702x_rc_keys); i++)		if (vp702x_rc_keys[i].custom == key[1]) {			*state = REMOTE_KEY_PRESSED;			*event = vp702x_rc_keys[i].event;			break;		}	return 0;}static int vp702x_read_mac_addr(struct dvb_usb_device *d,u8 mac[6]){	u8 macb[9];	if (vp702x_usb_inout_cmd(d, GET_MAC_ADDRESS, NULL, 0, macb, 9, 10))		return -EIO;	memcpy(mac,&macb[3],6);	return 0;}static int vp702x_frontend_attach(struct dvb_usb_device *d){	u8 buf[9] = { 0 };	if (vp702x_usb_inout_cmd(d, GET_SYSTEM_STRING, NULL, 0, buf, 9, 10))		return -EIO;	buf[8] = '\0';	info("system string: %s",&buf[1]);	d->fe = vp702x_fe_attach(d);	return 0;}static struct dvb_usb_properties vp702x_properties;static int vp702x_usb_probe(struct usb_interface *intf,		const struct usb_device_id *id){	struct usb_device *udev = interface_to_usbdev(intf);	usb_clear_halt(udev,usb_sndctrlpipe(udev,0));	usb_clear_halt(udev,usb_rcvctrlpipe(udev,0));	return dvb_usb_device_init(intf,&vp702x_properties,THIS_MODULE,NULL);}static struct usb_device_id vp702x_usb_table [] = {	    { USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_TWINHAN_VP7021_COLD) },	    { USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_TWINHAN_VP7021_WARM) },	    { USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_TWINHAN_VP7020_COLD) },	    { USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_TWINHAN_VP7020_WARM) },	    { 0 },};MODULE_DEVICE_TABLE(usb, vp702x_usb_table);static struct dvb_usb_properties vp702x_properties = {	.caps = DVB_USB_HAS_PID_FILTER | DVB_USB_NEED_PID_FILTERING,	.pid_filter_count = 8, /* !!! */	.usb_ctrl = CYPRESS_FX2,	.firmware = "dvb-usb-vp702x-01.fw",	.pid_filter       = vp702x_pid_filter,	.power_ctrl       = vp702x_power_ctrl,	.frontend_attach  = vp702x_frontend_attach,	.read_mac_address = vp702x_read_mac_addr,	.rc_key_map       = vp702x_rc_keys,	.rc_key_map_size  = ARRAY_SIZE(vp702x_rc_keys),	.rc_interval      = 400,	.rc_query         = vp702x_rc_query,	.size_of_priv     = sizeof(struct vp702x_state),	/* parameter for the MPEG2-data transfer */	.urb = {		.type = DVB_USB_BULK,		.count = 7,		.endpoint = 0x02,		.u = {			.bulk = {				.buffersize = 4096,			}		}	},	.num_device_descs = 2,	.devices = {		{ .name = "TwinhanDTV StarBox DVB-S USB2.0 (VP7021)",		  .cold_ids = { &vp702x_usb_table[0], NULL },		  .warm_ids = { &vp702x_usb_table[1], NULL },		},		{ .name = "TwinhanDTV StarBox DVB-S USB2.0 (VP7020)",		  .cold_ids = { &vp702x_usb_table[2], NULL },		  .warm_ids = { &vp702x_usb_table[3], NULL },		},		{ 0 },	}};/* usb specific object needed to register this driver with the usb subsystem */static struct usb_driver vp702x_usb_driver = {#if LINUX_VERSION_CODE <=  KERNEL_VERSION(2,6,15)	.owner		= THIS_MODULE,#endif	.name		= "dvb-usb-vp702x",	.probe 		= vp702x_usb_probe,	.disconnect = dvb_usb_device_exit,	.id_table 	= vp702x_usb_table,};/* module stuff */static int __init vp702x_usb_module_init(void){	int result;	if ((result = usb_register(&vp702x_usb_driver))) {		err("usb_register failed. (%d)",result);		return result;	}	return 0;}static void __exit vp702x_usb_module_exit(void){	/* deregister this driver from the USB subsystem */	usb_deregister(&vp702x_usb_driver);}module_init(vp702x_usb_module_init);module_exit(vp702x_usb_module_exit);MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@desy.de>");MODULE_DESCRIPTION("Driver for Twinhan StarBox DVB-S USB2.0 and clones");MODULE_VERSION("1.0-alpha");MODULE_LICENSE("GPL");