drivers/media/dvb/dvb-usb/vp702x.c - fp2-dev/kernel/msm - Gitiles

 /* 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 = {
 	.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");
	/* 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[index2] = st->pid_table[index2+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 = {
	.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");