V4L/DVB (4647): Added module for DiB0700 based devices

/* Linux driver for devices based on the DiBcom DiB0700 USB bridge

 *

 *	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.

 *

 *  Copyright (C) 2005-6 DiBcom, SA

 */

#ifndef _DIB0700_H_

#define _DIB0700_H_

#define DVB_USB_LOG_PREFIX "dib0700"

#include "dvb-usb.h"

#include "dib07x0.h"

extern int dvb_usb_dib0700_debug;

#define deb_info(args...)   dprintk(dvb_usb_dib0700_debug,0x01,args)

#define deb_fw(args...)     dprintk(dvb_usb_dib0700_debug,0x02,args)

#define deb_fwdata(args...) dprintk(dvb_usb_dib0700_debug,0x04,args)

#define deb_data(args...)   dprintk(dvb_usb_dib0700_debug,0x08,args)

#define REQUEST_I2C_READ     0x2

#define REQUEST_I2C_WRITE    0x3

#define REQUEST_POLL_RC      0x4

#define REQUEST_JUMPRAM      0x8

#define REQUEST_SET_GPIO     0xC

#define REQUEST_ENABLE_VIDEO 0xF

	// 1 Byte: 4MSB(1 = enable streaming, 0 = disable streaming) 4LSB(Video Mode: 0 = MPEG2 188Bytes, 1 = Analog)

	// 2 Byte: MPEG2 mode:  4MSB(1 = Master Mode, 0 = Slave Mode) 4LSB(Channel 1 = bit0, Channel 2 = bit1)

	// 2 Byte: Analog mode: 4MSB(0 = 625 lines, 1 = 525 lines)    4LSB(     "                "           )

struct dib0700_state {

	u8 channel_state;

	u8 mt2060_if1[2];

};

extern int dib0700_set_gpio(struct dvb_usb_device *, enum dib07x0_gpios gpio, u8 gpio_dir, u8 gpio_val);

extern int dib0700_download_firmware(struct usb_device *udev, const struct firmware *fw);

extern int dib0700_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff);

extern struct i2c_algorithm dib0700_i2c_algo;

extern int dib0700_device_count;

extern struct dvb_usb_device_properties dib0700_devices[];

extern struct usb_device_id dib0700_usb_id_table[];

#endif

/* Linux driver for devices based on the DiBcom DiB0700 USB bridge

 *

 *	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.

 *

 *  Copyright (C) 2005-6 DiBcom, SA

 */

#include "dib0700.h"

/* debug */

int dvb_usb_dib0700_debug;

module_param_named(debug,dvb_usb_dib0700_debug, int, 0644);

MODULE_PARM_DESC(debug, "set debugging level (1=info,2=fw,4=fwdata,8=data (or-able))." DVB_USB_DEBUG_STATUS);

/* expecting rx buffer: request data[0] data[1] ... data[2] */

static int dib0700_ctrl_wr(struct dvb_usb_device *d, u8 *tx, u8 txlen)

{

	int status;

	deb_data(">>> ");

	debug_dump(tx,txlen,deb_data);

	status = usb_control_msg(d->udev, usb_sndctrlpipe(d->udev,0),

		tx[0], USB_TYPE_VENDOR | USB_DIR_OUT, 0, 0, tx, txlen,

		USB_CTRL_GET_TIMEOUT);

	if (status != txlen)

		err("ep 0 write error (status = %d, len: %d)",status,txlen);

	return status < 0 ? status : 0;

}

/* expecting tx buffer: request data[0] ... data[n] (n <= 4) */

static int dib0700_ctrl_rd(struct dvb_usb_device *d, u8 *tx, u8 txlen, u8 *rx, u8 rxlen)

{

	u16 index, value;

	int status;

	if (txlen < 2) {

		err("tx buffer length is smaller than 2. Makes no sense.");

		return -EINVAL;

	}

	if (txlen > 4) {

		err("tx buffer length is larger than 4. Not supported.");

		return -EINVAL;

	}

	deb_data(">>> ");

	debug_dump(tx,txlen,deb_data);

	value = ((txlen - 2) << 8) | tx[1];

	index = 0;

	if (txlen > 2)

		index |= (tx[2] << 8);

	if (txlen > 3)

		index |= tx[3];

	/* think about swapping here */

	value = le16_to_cpu(value);

	index = le16_to_cpu(index);

	status = usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev,0), tx[0],

			USB_TYPE_VENDOR | USB_DIR_IN, value, index, rx, rxlen,

			USB_CTRL_GET_TIMEOUT);

	if (status < 0)

		err("ep 0 read error (status = %d)",status);

	deb_data("<<< ");

	debug_dump(rx,rxlen,deb_data);

	return status; /* length in case of success */

}

int dib0700_set_gpio(struct dvb_usb_device *d, enum dib07x0_gpios gpio, u8 gpio_dir, u8 gpio_val)

{

	u8 buf[3] = { REQUEST_SET_GPIO, gpio, ((gpio_dir & 0x01) << 7) | ((gpio_val & 0x01) << 6) };

	return dib0700_ctrl_wr(d,buf,3);

}

/*

 * I2C master xfer function

 */

static int dib0700_i2c_xfer(struct i2c_adapter *adap,struct i2c_msg *msg,int num)

{

	struct dvb_usb_device *d = i2c_get_adapdata(adap);

	int i,len;

	u8 buf[255];

	if (mutex_lock_interruptible(&d->i2c_mutex) < 0)

		return -EAGAIN;

	for (i = 0; i < num; i++) {

		/* fill in the address */

		buf[1] = (msg[i].addr << 1);

		/* fill the buffer */

		memcpy(&buf[2], msg[i].buf, msg[i].len);

		/* write/read request */

		if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) {

			buf[0] = REQUEST_I2C_READ;

			buf[1] |= 1;

			/* special thing in the current firmware: when length is zero the read-failed */

			if ((len = dib0700_ctrl_rd(d, buf, msg[i].len + 2, msg[i+1].buf, msg[i+1].len)) <= 0)

				break;

			msg[i+1].len = len;

			i++;

		} else {

			buf[0] = REQUEST_I2C_WRITE;

			if (dib0700_ctrl_wr(d, buf, msg[i].len + 2) < 0)

				break;

		}

	}

	mutex_unlock(&d->i2c_mutex);

	return i;

}

static u32 dib0700_i2c_func(struct i2c_adapter *adapter)

{

	return I2C_FUNC_I2C;

}

struct i2c_algorithm dib0700_i2c_algo = {

	.master_xfer   = dib0700_i2c_xfer,

	.functionality = dib0700_i2c_func,

};

static int dib0700_jumpram(struct usb_device *udev, u32 address)

{

	int ret, actlen;

	u8 buf[8] = { REQUEST_JUMPRAM, 0, 0, 0,

		(address >> 24) & 0xff,

		(address >> 16) & 0xff,

		(address >> 8)  & 0xff,

		 address        & 0xff };

	if ((ret = usb_bulk_msg(udev, usb_sndbulkpipe(udev, 0x01),buf,8,&actlen,1000)) < 0) {

		deb_fw("jumpram to 0x%x failed\n",address);

		return ret;

	}

	if (actlen != 8) {

		deb_fw("jumpram to 0x%x failed\n",address);

		return -EIO;

	}

	return 0;

}

int dib0700_download_firmware(struct usb_device *udev, const struct firmware *fw)

{

	struct hexline hx;

	int pos = 0, ret, act_len;

	u8 buf[260];

	while ((ret = dvb_usb_get_hexline(fw, &hx, &pos)) > 0) {

		deb_fwdata("writing to address 0x%04x (buffer: 0x%02x %02x)\n",hx.addr, hx.len, hx.chk);

		buf[0] = hx.len;

		buf[1] = hx.addr >> 8;

		buf[2] = hx.addr & 0xff;

		buf[3] = hx.type;

		memcpy(&buf[4],hx.data,hx.len);

		buf[4+hx.len] = hx.chk;

		ret = usb_bulk_msg(udev,

			usb_sndbulkpipe(udev, 0x01),

			buf,

			hx.len + 5,

			&act_len,

			1000);

		if (ret < 0) {

			err("firmware download failed at %d with %d",pos,ret);

			return ret;

		}

	}

	if (ret == 0) {

		/* start the firmware */

		if ((ret = dib0700_jumpram(udev,0x70000000)) == 0)

			info("firmware started successfully.");

	} else

		ret = -EIO;

	return ret;

}

int dib0700_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)

{

	struct dib0700_state *st = adap->dev->priv;

	u8 b[4];

	b[0] = REQUEST_ENABLE_VIDEO;

	b[1] = 0x00;

	b[2] = (0x01 << 4); /* Master mode */

	b[3] = 0x00;

	deb_info("modifying (%d) streaming state for %d\n", onoff, adap->id);

	if (onoff)

		st->channel_state |=   1 << adap->id;

	else

		st->channel_state &= ~(1 << adap->id);

	b[2] |= st->channel_state;

	if (st->channel_state) /* if at least one channel is active */

		b[1] = (0x01 << 4) | 0x00;

	deb_info("data for streaming: %x %x\n",b[1],b[2]);

	return dib0700_ctrl_wr(adap->dev, b, 4);

}

static int dib0700_probe(struct usb_interface *intf,

		const struct usb_device_id *id)

{

	int i;

	for (i = 0; i < dib0700_device_count; i++)

		if (dvb_usb_device_init(intf, &dib0700_devices[i], THIS_MODULE, NULL) == 0)

			return 0;

	return -ENODEV;

}

static struct usb_driver dib0700_driver = {

	.name       = "dvb_usb_dib0700",

	.probe      = dib0700_probe,

	.disconnect = dvb_usb_device_exit,

	.id_table   = dib0700_usb_id_table,

};

/* module stuff */

static int __init dib0700_module_init(void)

{

	int result;

	info("loaded with support for %d different device-types", dib0700_device_count);

	if ((result = usb_register(&dib0700_driver))) {

		err("usb_register failed. Error number %d",result);

		return result;

	}

	return 0;

}

static void __exit dib0700_module_exit(void)

{

	/* deregister this driver from the USB subsystem */

	usb_deregister(&dib0700_driver);

}

module_init (dib0700_module_init);

module_exit (dib0700_module_exit);

MODULE_AUTHOR("Patrick Boettcher <pboettcher@dibcom.fr>");

MODULE_DESCRIPTION("Driver for devices based on DiBcom DiB0700 - USB bridge");

MODULE_VERSION("1.0");

MODULE_LICENSE("GPL");

/* Linux driver for devices based on the DiBcom DiB0700 USB bridge

 *

 *	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.

 *

 *  Copyright (C) 2005-6 DiBcom, SA

 */

#include "dib0700.h"

#include "dib3000mc.h"

#include "dib7000m.h"

#include "mt2060.h"

/* Hauppauge Nova-T 500

 *  has a LNA on GPIO0 which is enabled by setting 1 */

static struct mt2060_config bristol_mt2060_config[2] = {

	{

		.i2c_address = 0x60,

		.clock_out   = 1,

	}, {

		.i2c_address = 0x61,

	}

};

static struct dibx000_agc_config bristol_dib3000p_mt2060_agc_config = {

	.band_caps = BAND_VHF | BAND_UHF,

	.setup     = (0 << 15) | (0 << 14) | (1 << 13) | (1 << 12) | (29 << 0),

	.agc1_max = 48497,

	.agc1_min = 23593,

	.agc2_max = 46531,

	.agc2_min = 24904,

	.agc1_pt1 = 0x65,

	.agc1_pt2 = 0x69,

	.agc1_slope1 = 0x51,

	.agc1_slope2 = 0x27,

	.agc2_pt1 = 0,

	.agc2_pt2 = 0x33,

	.agc2_slope1 = 0x35,

	.agc2_slope2 = 0x37,

};

static struct dib3000mc_config bristol_dib3000mc_config[2] = {

	{	.agc          = &bristol_dib3000p_mt2060_agc_config,

		.max_time     = 0x196,

		.ln_adc_level = 0x1cc7,

		.output_mpeg2_in_188_bytes = 1,

	},

	{	.agc          = &bristol_dib3000p_mt2060_agc_config,

		.max_time     = 0x196,

		.ln_adc_level = 0x1cc7,

		.output_mpeg2_in_188_bytes = 1,

	}

};

static int bristol_frontend_attach(struct dvb_usb_adapter *adap)

{

	if (adap->id == 0) {

		dib0700_set_gpio(adap->dev, GPIO6,  GPIO_OUT, 0); msleep(10);

		dib0700_set_gpio(adap->dev, GPIO6,  GPIO_OUT, 1); msleep(10);

		dib0700_set_gpio(adap->dev, GPIO10, GPIO_OUT, 0); msleep(10);

		dib0700_set_gpio(adap->dev, GPIO10, GPIO_OUT, 1); msleep(10);

		if (dib3000mc_i2c_enumeration(&adap->dev->i2c_adap, 2, DEFAULT_DIB3000P_I2C_ADDRESS, bristol_dib3000mc_config) != 0) {

			dib0700_set_gpio(adap->dev, GPIO6, GPIO_OUT, 0); msleep(10);

			return -ENODEV;

		}

	}

	return (adap->fe = dvb_attach(dib3000mc_attach, &adap->dev->i2c_adap, 10 + adap->id, &bristol_dib3000mc_config[adap->id])) == NULL ? -ENODEV : 0;

}

static int bristol_tuner_attach(struct dvb_usb_adapter *adap)

{

	struct dib0700_state *st = adap->dev->priv;

	struct i2c_adapter *tun_i2c = dib3000mc_get_tuner_i2c_master(adap->fe, 1);

	return mt2060_attach(adap->fe, tun_i2c, &bristol_mt2060_config[adap->id], st->mt2060_if1[adap->id]);

}

/* STK7700P: Hauppauge Nova-T Stick, AVerMedia Volar */

static struct mt2060_config stk7000p_mt2060_config = {

	0x60

};

static int stk7700p_frontend_attach(struct dvb_usb_adapter *adap)

{

	/* unless there is no real power management in DVB - we leave the device on GPIO6 */

	dib0700_set_gpio(adap->dev, GPIO6, GPIO_OUT, 0); msleep(10);

	dib0700_set_gpio(adap->dev, GPIO6, GPIO_OUT, 1); msleep(10);

	dib0700_set_gpio(adap->dev, GPIO10, GPIO_OUT, 1); msleep(10);

	dib0700_set_gpio(adap->dev, GPIO10, GPIO_OUT, 0); msleep(10);

//	adap->fe = dib7000m_attach(&adap->dev->i2c_adap, &stk7700p_dib7000m_config, 18);

	return 0;

}

static int stk7700p_tuner_attach(struct dvb_usb_adapter *adap)

{

//	tun_i2c = dib7000m_get_tuner_i2c_master(adap->fe, 1);

//	return mt2060_attach(adap->fe, tun_i2c, &stk3000p_mt2060_config, if1);

	return 0;

}

struct usb_device_id dib0700_usb_id_table[] = {

		{ USB_DEVICE(USB_VID_DIBCOM,    USB_PID_DIBCOM_STK7700P) },

		{ USB_DEVICE(USB_VID_HAUPPAUGE, USB_PID_HAUPPAUGE_NOVA_T_500) },

		{ USB_DEVICE(USB_VID_HAUPPAUGE, USB_PID_HAUPPAUGE_NOVA_T_STICK) },

		{ USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_VOLAR) },

		{ }		/* Terminating entry */

};

MODULE_DEVICE_TABLE(usb, dib0700_usb_id_table);

#define DIB0700_DEFAULT_DEVICE_PROPERTIES \

	.caps              = DVB_USB_IS_AN_I2C_ADAPTER, \

	.usb_ctrl          = DEVICE_SPECIFIC, \

	.firmware          = "dvb-usb-dib0700-01.fw", \

	.download_firmware = dib0700_download_firmware, \

	.size_of_priv      = sizeof(struct dib0700_state), \

	.i2c_algo          = &dib0700_i2c_algo

#define DIB0700_DEFAULT_STREAMING_CONFIG(ep) \

	.streaming_ctrl   = dib0700_streaming_ctrl, \

	.stream = { \

		.type = USB_BULK, \

		.count = 4, \

		.endpoint = ep, \

		.u = { \

			.bulk = { \

				.buffersize = 39480, \

			} \

		} \

	}

struct dvb_usb_device_properties dib0700_devices[] = {

	{

		DIB0700_DEFAULT_DEVICE_PROPERTIES,

		.num_adapters = 1,

		.adapter = {

			{

				.frontend_attach  = stk7700p_frontend_attach,

				.tuner_attach     = stk7700p_tuner_attach,

				DIB0700_DEFAULT_STREAMING_CONFIG(0x02),

			},

		},

		.num_device_descs = 3,

		.devices = {

			{   "DiBcom STK7700P reference design",

				{ &dib0700_usb_id_table[0], NULL },

				{ NULL },

			},

			{   "Hauppauge Nova-T Stick",

				{ &dib0700_usb_id_table[2], NULL },

				{ NULL },

			},

			{   "AVerMedia AVerTV DVB-T Volar",

				{ &dib0700_usb_id_table[3], NULL },

				{ NULL },

			},

		}

	}, { DIB0700_DEFAULT_DEVICE_PROPERTIES,

		.num_adapters = 2,

		.adapter = {

			{

				.frontend_attach  = bristol_frontend_attach,

				.tuner_attach     = bristol_tuner_attach,

				DIB0700_DEFAULT_STREAMING_CONFIG(0x02),

			}, {

				.frontend_attach  = bristol_frontend_attach,

				.tuner_attach     = bristol_tuner_attach,

				DIB0700_DEFAULT_STREAMING_CONFIG(0x03),

			}

		},

		.num_device_descs = 1,

		.devices = {

			{   "Hauppauge Nova-T 500 Dual DVB-T",

				{ &dib0700_usb_id_table[1], NULL },

				{ NULL },

			},

		}

	}

};

int dib0700_device_count = ARRAY_SIZE(dib0700_devices);

#ifndef _DIB07X0_H_

#define _DIB07X0_H_

enum dib07x0_gpios {

	GPIO0  =  0,

	GPIO1  =  2,

	GPIO2  =  3,

	GPIO3  =  4,

	GPIO4  =  5,

	GPIO5  =  6,

	GPIO6  =  8,

	GPIO7  = 10,

	GPIO8  = 11,

	GPIO9  = 14,

	GPIO10 = 15,

};

#define GPIO_IN  0

#define GPIO_OUT 1

#endif