drivers/media/dvb/dvb-usb/gp8psk.c - maze/linux - Git at Google

 /* DVB USB compliant Linux driver for the
  *  - GENPIX 8pks/qpsk/DCII USB2.0 DVB-S module
  *
  * Copyright (C) 2006,2007 Alan Nisota (alannisota@gmail.com)
  * Copyright (C) 2006,2007 Genpix Electronics (genpix@genpix-electronics.com)
  *
  * Thanks to GENPIX for the sample code used to implement this module.
  *
  * This module is based off the vp7045 and vp702x modules
  *
  *	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 "gp8psk.h"

 /* debug */
 static char bcm4500_firmware[] = "dvb-usb-gp8psk-02.fw";
 int dvb_usb_gp8psk_debug;
 module_param_named(debug,dvb_usb_gp8psk_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);

 int gp8psk_usb_in_op(struct dvb_usb_device *d, u8 req, u16 value, u16 index, u8 *b, int blen)
 {
 	int ret = 0,try = 0;

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

 	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 %d operation failed.", req);
 		ret = -EIO;
 	} else
 		ret = 0;

 	deb_xfer("in: req. %x, val: %x, ind: %x, buffer: ",req,value,index);
 	debug_dump(b,blen,deb_xfer);

 	mutex_unlock(&d->usb_mutex);

 	return ret;
 }

 int gp8psk_usb_out_op(struct dvb_usb_device *d, u8 req, u16 value,
 			     u16 index, u8 *b, int blen)
 {
 	int ret;

 	deb_xfer("out: req. %x, val: %x, ind: %x, buffer: ",req,value,index);
 	debug_dump(b,blen,deb_xfer);

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

 	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.");
 		ret = -EIO;
 	} else
 		ret = 0;
 	mutex_unlock(&d->usb_mutex);

 	return ret;
 }

 static int gp8psk_load_bcm4500fw(struct dvb_usb_device *d)
 {
 	int ret;
 	const struct firmware *fw = NULL;
 	const u8 *ptr;
 	u8 *buf;
 	if ((ret = request_firmware(&fw, bcm4500_firmware,
 					&d->udev->dev)) != 0) {
 		err("did not find the bcm4500 firmware file. (%s) "
 			"Please see linux/Documentation/dvb/ for more details on firmware-problems. (%d)",
 			bcm4500_firmware,ret);
 		return ret;
 	}

 	ret = -EINVAL;

 	if (gp8psk_usb_out_op(d, LOAD_BCM4500,1,0,NULL, 0))
 		goto out_rel_fw;

 	info("downloading bcm4500 firmware from file '%s'",bcm4500_firmware);

 	ptr = fw->data;
 	buf = kmalloc(64, GFP_KERNEL | GFP_DMA);
 	if (!buf) {
 		ret = -ENOMEM;
 		goto out_rel_fw;
 	}

 	while (ptr[0] != 0xff) {
 		u16 buflen = ptr[0] + 4;
 		if (ptr + buflen >= fw->data + fw->size) {
 			err("failed to load bcm4500 firmware.");
 			goto out_free;
 		}
 		memcpy(buf, ptr, buflen);
 		if (dvb_usb_generic_write(d, buf, buflen)) {
 			err("failed to load bcm4500 firmware.");
 			goto out_free;
 		}
 		ptr += buflen;
 	}

 	ret = 0;

 out_free:
 	kfree(buf);
 out_rel_fw:
 	release_firmware(fw);

 	return ret;
 }

 static int gp8psk_power_ctrl(struct dvb_usb_device *d, int onoff)
 {
 	u8 status, buf;
 	int gp_product_id = le16_to_cpu(d->udev->descriptor.idProduct);

 	if (onoff) {
 		gp8psk_usb_in_op(d, GET_8PSK_CONFIG,0,0,&status,1);
 		if (! (status & bm8pskStarted)) {  /* started */
 			if(gp_product_id == USB_PID_GENPIX_SKYWALKER_CW3K)
 				gp8psk_usb_out_op(d, CW3K_INIT, 1, 0, NULL, 0);
 			if (gp8psk_usb_in_op(d, BOOT_8PSK, 1, 0, &buf, 1))
 				return -EINVAL;
 		}

 		if (gp_product_id == USB_PID_GENPIX_8PSK_REV_1_WARM)
 			if (! (status & bm8pskFW_Loaded)) /* BCM4500 firmware loaded */
 				if(gp8psk_load_bcm4500fw(d))
 					return -EINVAL;

 		if (! (status & bmIntersilOn)) /* LNB Power */
 			if (gp8psk_usb_in_op(d, START_INTERSIL, 1, 0,
 					&buf, 1))
 				return -EINVAL;

 		/* Set DVB mode to 1 */
 		if (gp_product_id == USB_PID_GENPIX_8PSK_REV_1_WARM)
 			if (gp8psk_usb_out_op(d, SET_DVB_MODE, 1, 0, NULL, 0))
 				return -EINVAL;
 		/* Abort possible TS (if previous tune crashed) */
 		if (gp8psk_usb_out_op(d, ARM_TRANSFER, 0, 0, NULL, 0))
 			return -EINVAL;
 	} else {
 		/* Turn off LNB power */
 		if (gp8psk_usb_in_op(d, START_INTERSIL, 0, 0, &buf, 1))
 			return -EINVAL;
 		/* Turn off 8psk power */
 		if (gp8psk_usb_in_op(d, BOOT_8PSK, 0, 0, &buf, 1))
 			return -EINVAL;
 		if(gp_product_id == USB_PID_GENPIX_SKYWALKER_CW3K)
 			gp8psk_usb_out_op(d, CW3K_INIT, 0, 0, NULL, 0);
 	}
 	return 0;
 }

 int gp8psk_bcm4500_reload(struct dvb_usb_device *d)
 {
 	u8 buf;
 	int gp_product_id = le16_to_cpu(d->udev->descriptor.idProduct);
 	/* Turn off 8psk power */
 	if (gp8psk_usb_in_op(d, BOOT_8PSK, 0, 0, &buf, 1))
 		return -EINVAL;
 	/* Turn On 8psk power */
 	if (gp8psk_usb_in_op(d, BOOT_8PSK, 1, 0, &buf, 1))
 		return -EINVAL;
 	/* load BCM4500 firmware */
 	if (gp_product_id == USB_PID_GENPIX_8PSK_REV_1_WARM)
 		if (gp8psk_load_bcm4500fw(d))
 			return -EINVAL;
 	return 0;
 }

 static int gp8psk_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)
 {
 	return gp8psk_usb_out_op(adap->dev, ARM_TRANSFER, onoff, 0 , NULL, 0);
 }

 static int gp8psk_frontend_attach(struct dvb_usb_adapter *adap)
 {
 	adap->fe = gp8psk_fe_attach(adap->dev);
 	return 0;
 }

 static struct dvb_usb_device_properties gp8psk_properties;

 static int gp8psk_usb_probe(struct usb_interface *intf,
 		const struct usb_device_id *id)
 {
 	int ret;
 	struct usb_device *udev = interface_to_usbdev(intf);
 	ret = dvb_usb_device_init(intf, &gp8psk_properties,
 				  THIS_MODULE, NULL, adapter_nr);
 	if (ret == 0) {
 		info("found Genpix USB device pID = %x (hex)",
 			le16_to_cpu(udev->descriptor.idProduct));
 	}
 	return ret;
 }

 static struct usb_device_id gp8psk_usb_table [] = {
 	    { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_8PSK_REV_1_COLD) },
 	    { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_8PSK_REV_1_WARM) },
 	    { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_8PSK_REV_2) },
 	    { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_SKYWALKER_1) },
 	    { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_SKYWALKER_2) },
 /*	    { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_SKYWALKER_CW3K) }, */
 	    { 0 },
 };
 MODULE_DEVICE_TABLE(usb, gp8psk_usb_table);

 static struct dvb_usb_device_properties gp8psk_properties = {
 	.usb_ctrl = CYPRESS_FX2,
 	.firmware = "dvb-usb-gp8psk-01.fw",

 	.num_adapters = 1,
 	.adapter = {
 		{
 			.streaming_ctrl   = gp8psk_streaming_ctrl,
 			.frontend_attach  = gp8psk_frontend_attach,
 			/* parameter for the MPEG2-data transfer */
 			.stream = {
 				.type = USB_BULK,
 				.count = 7,
 				.endpoint = 0x82,
 				.u = {
 					.bulk = {
 						.buffersize = 8192,
 					}
 				}
 			},
 		}
 	},
 	.power_ctrl       = gp8psk_power_ctrl,

 	.generic_bulk_ctrl_endpoint = 0x01,

 	.num_device_descs = 4,
 	.devices = {
 		{ .name = "Genpix 8PSK-to-USB2 Rev.1 DVB-S receiver",
 		  .cold_ids = { &gp8psk_usb_table[0], NULL },
 		  .warm_ids = { &gp8psk_usb_table[1], NULL },
 		},
 		{ .name = "Genpix 8PSK-to-USB2 Rev.2 DVB-S receiver",
 		  .cold_ids = { NULL },
 		  .warm_ids = { &gp8psk_usb_table[2], NULL },
 		},
 		{ .name = "Genpix SkyWalker-1 DVB-S receiver",
 		  .cold_ids = { NULL },
 		  .warm_ids = { &gp8psk_usb_table[3], NULL },
 		},
 		{ .name = "Genpix SkyWalker-2 DVB-S receiver",
 		  .cold_ids = { NULL },
 		  .warm_ids = { &gp8psk_usb_table[4], NULL },
 		},
 		{ NULL },
 	}
 };

 /* usb specific object needed to register this driver with the usb subsystem */
 static struct usb_driver gp8psk_usb_driver = {
 	.name		= "dvb_usb_gp8psk",
 	.probe		= gp8psk_usb_probe,
 	.disconnect = dvb_usb_device_exit,
 	.id_table	= gp8psk_usb_table,
 };

 /* module stuff */
 static int __init gp8psk_usb_module_init(void)
 {
 	int result;
 	if ((result = usb_register(&gp8psk_usb_driver))) {
 		err("usb_register failed. (%d)",result);
 		return result;
 	}

 	return 0;
 }

 static void __exit gp8psk_usb_module_exit(void)
 {
 	/* deregister this driver from the USB subsystem */
 	usb_deregister(&gp8psk_usb_driver);
 }

 module_init(gp8psk_usb_module_init);
 module_exit(gp8psk_usb_module_exit);

 MODULE_AUTHOR("Alan Nisota <alannisota@gamil.com>");
 MODULE_DESCRIPTION("Driver for Genpix DVB-S");
 MODULE_VERSION("1.1");
 MODULE_LICENSE("GPL");
	/* DVB USB compliant Linux driver for the
	* - GENPIX 8pks/qpsk/DCII USB2.0 DVB-S module
	*
	* Copyright (C) 2006,2007 Alan Nisota (alannisota@gmail.com)
	* Copyright (C) 2006,2007 Genpix Electronics (genpix@genpix-electronics.com)
	*
	* Thanks to GENPIX for the sample code used to implement this module.
	*
	* This module is based off the vp7045 and vp702x modules
	*
	* 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 "gp8psk.h"

	/* debug */
	static char bcm4500_firmware[] = "dvb-usb-gp8psk-02.fw";
	int dvb_usb_gp8psk_debug;
	module_param_named(debug,dvb_usb_gp8psk_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);

	int gp8psk_usb_in_op(struct dvb_usb_device d, u8 req, u16 value, u16 index, u8 b, int blen)
	{
	int ret = 0,try = 0;

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

	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 %d operation failed.", req);
	ret = -EIO;
	} else
	ret = 0;

	deb_xfer("in: req. %x, val: %x, ind: %x, buffer: ",req,value,index);
	debug_dump(b,blen,deb_xfer);

	mutex_unlock(&d->usb_mutex);

	return ret;
	}

	int gp8psk_usb_out_op(struct dvb_usb_device *d, u8 req, u16 value,
	u16 index, u8 *b, int blen)
	{
	int ret;

	deb_xfer("out: req. %x, val: %x, ind: %x, buffer: ",req,value,index);
	debug_dump(b,blen,deb_xfer);

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

	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.");
	ret = -EIO;
	} else
	ret = 0;
	mutex_unlock(&d->usb_mutex);

	return ret;
	}

	static int gp8psk_load_bcm4500fw(struct dvb_usb_device *d)
	{
	int ret;
	const struct firmware *fw = NULL;
	const u8 *ptr;
	u8 *buf;
	if ((ret = request_firmware(&fw, bcm4500_firmware,
	&d->udev->dev)) != 0) {
	err("did not find the bcm4500 firmware file. (%s) "
	"Please see linux/Documentation/dvb/ for more details on firmware-problems. (%d)",
	bcm4500_firmware,ret);
	return ret;
	}

	ret = -EINVAL;

	if (gp8psk_usb_out_op(d, LOAD_BCM4500,1,0,NULL, 0))
	goto out_rel_fw;

	info("downloading bcm4500 firmware from file '%s'",bcm4500_firmware);

	ptr = fw->data;
	buf = kmalloc(64, GFP_KERNEL \| GFP_DMA);
	if (!buf) {
	ret = -ENOMEM;
	goto out_rel_fw;
	}

	while (ptr[0] != 0xff) {
	u16 buflen = ptr[0] + 4;
	if (ptr + buflen >= fw->data + fw->size) {
	err("failed to load bcm4500 firmware.");
	goto out_free;
	}
	memcpy(buf, ptr, buflen);
	if (dvb_usb_generic_write(d, buf, buflen)) {
	err("failed to load bcm4500 firmware.");
	goto out_free;
	}
	ptr += buflen;
	}

	ret = 0;

	out_free:
	kfree(buf);
	out_rel_fw:
	release_firmware(fw);

	return ret;
	}

	static int gp8psk_power_ctrl(struct dvb_usb_device *d, int onoff)
	{
	u8 status, buf;
	int gp_product_id = le16_to_cpu(d->udev->descriptor.idProduct);

	if (onoff) {
	gp8psk_usb_in_op(d, GET_8PSK_CONFIG,0,0,&status,1);
	if (! (status & bm8pskStarted)) { /* started */
	if(gp_product_id == USB_PID_GENPIX_SKYWALKER_CW3K)
	gp8psk_usb_out_op(d, CW3K_INIT, 1, 0, NULL, 0);
	if (gp8psk_usb_in_op(d, BOOT_8PSK, 1, 0, &buf, 1))
	return -EINVAL;
	}

	if (gp_product_id == USB_PID_GENPIX_8PSK_REV_1_WARM)
	if (! (status & bm8pskFW_Loaded)) /* BCM4500 firmware loaded */
	if(gp8psk_load_bcm4500fw(d))
	return -EINVAL;

	if (! (status & bmIntersilOn)) /* LNB Power */
	if (gp8psk_usb_in_op(d, START_INTERSIL, 1, 0,
	&buf, 1))
	return -EINVAL;

	/* Set DVB mode to 1 */
	if (gp_product_id == USB_PID_GENPIX_8PSK_REV_1_WARM)
	if (gp8psk_usb_out_op(d, SET_DVB_MODE, 1, 0, NULL, 0))
	return -EINVAL;
	/* Abort possible TS (if previous tune crashed) */
	if (gp8psk_usb_out_op(d, ARM_TRANSFER, 0, 0, NULL, 0))
	return -EINVAL;
	} else {
	/* Turn off LNB power */
	if (gp8psk_usb_in_op(d, START_INTERSIL, 0, 0, &buf, 1))
	return -EINVAL;
	/* Turn off 8psk power */
	if (gp8psk_usb_in_op(d, BOOT_8PSK, 0, 0, &buf, 1))
	return -EINVAL;
	if(gp_product_id == USB_PID_GENPIX_SKYWALKER_CW3K)
	gp8psk_usb_out_op(d, CW3K_INIT, 0, 0, NULL, 0);
	}
	return 0;
	}

	int gp8psk_bcm4500_reload(struct dvb_usb_device *d)
	{
	u8 buf;
	int gp_product_id = le16_to_cpu(d->udev->descriptor.idProduct);
	/* Turn off 8psk power */
	if (gp8psk_usb_in_op(d, BOOT_8PSK, 0, 0, &buf, 1))
	return -EINVAL;
	/* Turn On 8psk power */
	if (gp8psk_usb_in_op(d, BOOT_8PSK, 1, 0, &buf, 1))
	return -EINVAL;
	/* load BCM4500 firmware */
	if (gp_product_id == USB_PID_GENPIX_8PSK_REV_1_WARM)
	if (gp8psk_load_bcm4500fw(d))
	return -EINVAL;
	return 0;
	}

	static int gp8psk_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)
	{
	return gp8psk_usb_out_op(adap->dev, ARM_TRANSFER, onoff, 0 , NULL, 0);
	}

	static int gp8psk_frontend_attach(struct dvb_usb_adapter *adap)
	{
	adap->fe = gp8psk_fe_attach(adap->dev);
	return 0;
	}

	static struct dvb_usb_device_properties gp8psk_properties;

	static int gp8psk_usb_probe(struct usb_interface *intf,
	const struct usb_device_id *id)
	{
	int ret;
	struct usb_device *udev = interface_to_usbdev(intf);
	ret = dvb_usb_device_init(intf, &gp8psk_properties,
	THIS_MODULE, NULL, adapter_nr);
	if (ret == 0) {
	info("found Genpix USB device pID = %x (hex)",
	le16_to_cpu(udev->descriptor.idProduct));
	}
	return ret;
	}

	static struct usb_device_id gp8psk_usb_table [] = {
	{ USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_8PSK_REV_1_COLD) },
	{ USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_8PSK_REV_1_WARM) },
	{ USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_8PSK_REV_2) },
	{ USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_SKYWALKER_1) },
	{ USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_SKYWALKER_2) },
	/* { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_SKYWALKER_CW3K) }, */
	{ 0 },
	};
	MODULE_DEVICE_TABLE(usb, gp8psk_usb_table);

	static struct dvb_usb_device_properties gp8psk_properties = {
	.usb_ctrl = CYPRESS_FX2,
	.firmware = "dvb-usb-gp8psk-01.fw",

	.num_adapters = 1,
	.adapter = {
	{
	.streaming_ctrl = gp8psk_streaming_ctrl,
	.frontend_attach = gp8psk_frontend_attach,
	/* parameter for the MPEG2-data transfer */
	.stream = {
	.type = USB_BULK,
	.count = 7,
	.endpoint = 0x82,
	.u = {
	.bulk = {
	.buffersize = 8192,
	}
	}
	},
	}
	},
	.power_ctrl = gp8psk_power_ctrl,

	.generic_bulk_ctrl_endpoint = 0x01,

	.num_device_descs = 4,
	.devices = {
	{ .name = "Genpix 8PSK-to-USB2 Rev.1 DVB-S receiver",
	.cold_ids = { &gp8psk_usb_table[0], NULL },
	.warm_ids = { &gp8psk_usb_table[1], NULL },
	},
	{ .name = "Genpix 8PSK-to-USB2 Rev.2 DVB-S receiver",
	.cold_ids = { NULL },
	.warm_ids = { &gp8psk_usb_table[2], NULL },
	},
	{ .name = "Genpix SkyWalker-1 DVB-S receiver",
	.cold_ids = { NULL },
	.warm_ids = { &gp8psk_usb_table[3], NULL },
	},
	{ .name = "Genpix SkyWalker-2 DVB-S receiver",
	.cold_ids = { NULL },
	.warm_ids = { &gp8psk_usb_table[4], NULL },
	},
	{ NULL },
	}
	};

	/* usb specific object needed to register this driver with the usb subsystem */
	static struct usb_driver gp8psk_usb_driver = {
	.name = "dvb_usb_gp8psk",
	.probe = gp8psk_usb_probe,
	.disconnect = dvb_usb_device_exit,
	.id_table = gp8psk_usb_table,
	};

	/* module stuff */
	static int __init gp8psk_usb_module_init(void)
	{
	int result;
	if ((result = usb_register(&gp8psk_usb_driver))) {
	err("usb_register failed. (%d)",result);
	return result;
	}

	return 0;
	}

	static void __exit gp8psk_usb_module_exit(void)
	{
	/* deregister this driver from the USB subsystem */
	usb_deregister(&gp8psk_usb_driver);
	}

	module_init(gp8psk_usb_module_init);
	module_exit(gp8psk_usb_module_exit);

	MODULE_AUTHOR("Alan Nisota <alannisota@gamil.com>");
	MODULE_DESCRIPTION("Driver for Genpix DVB-S");
	MODULE_VERSION("1.1");
	MODULE_LICENSE("GPL");