dw2102.c

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/* DVB USB framework compliant Linux driver for the
*	DVBWorld DVB-S 2101, 2102, DVB-S2 2104 Card
*
* Copyright (C) 2008 Igor M. Liplianin ([e-mail])
*
*	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 "dw2102.h"
#include "si21xx.h"
#include "stv0299.h"
#include "z0194a.h"
#include "stv0288.h"
#include "stb6000.h"
#include "eds1547.h"
#include "cx24116.h"

#ifndef USB_PID_DW2102
#define USB_PID_DW2102 0x2102
#endif

#ifndef USB_PID_DW2104
#define USB_PID_DW2104 0x2104
#endif

#define DW210X_READ_MSG 0
#define DW210X_WRITE_MSG 1

#define REG_1F_SYMBOLRATE_BYTE0 0x1f
#define REG_20_SYMBOLRATE_BYTE1 0x20
#define REG_21_SYMBOLRATE_BYTE2 0x21
/* on my own*/
#define DW2102_VOLTAGE_CTRL (0x1800)
#define DW2102_RC_QUERY (0x1a00)

struct dw210x_state {
	u32 last_key_pressed;
};
struct dw210x_rc_keys {
	u32 keycode;
	u32 event;
};

/* debug */
static int dvb_usb_dw2102_debug;
module_param_named(debug, dvb_usb_dw2102_debug, int, 0644);
MODULE_PARM_DESC(debug, "set debugging level (1=info 2=xfer (or-able))." DVB_USB_DEBUG_STATUS);

DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);

static int dw210x_op_rw(struct usb_device *dev, u8 request, u16 value,
			u16 index, u8 * data, u16 len, int flags)
{
	int ret;
	u8 u8buf[len];

	unsigned int pipe = (flags == DW210X_READ_MSG) ?
				usb_rcvctrlpipe(dev, 0) : usb_sndctrlpipe(dev, 0);
	u8 request_type = (flags == DW210X_READ_MSG) ? USB_DIR_IN : USB_DIR_OUT;

	if (flags == DW210X_WRITE_MSG)
		memcpy(u8buf, data, len);
	ret = usb_control_msg(dev, pipe, request, request_type | USB_TYPE_VENDOR,
				value, index , u8buf, len, 2000);

	if (flags == DW210X_READ_MSG)
		memcpy(data, u8buf, len);
	return ret;
}

/* I2C */
static int dw2102_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[],
		int num)
{
struct dvb_usb_device *d = i2c_get_adapdata(adap);
	int i = 0, ret = 0;
	u8 buf6[] = {0x2c, 0x05, 0xc0, 0, 0, 0, 0};
	u16 value;

	if (!d)
		return -ENODEV;
	if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
		return -EAGAIN;

	switch (num) {
	case 2:
		/* read stv0299 register */
		value = msg[0].buf[0];/* register */
		for (i = 0; i < msg[1].len; i++) {
			value = value + i;
			ret = dw210x_op_rw(d->udev, 0xb5, value, 0,
					buf6, 2, DW210X_READ_MSG);
			msg[1].buf[i] = buf6[0];
		}
		break;
	case 1:
		switch (msg[0].addr) {
		case 0x68:
			/* write to stv0299 register */
			buf6[0] = 0x2a;
			buf6[1] = msg[0].buf[0];
			buf6[2] = msg[0].buf[1];
			ret = dw210x_op_rw(d->udev, 0xb2, 0, 0,
					buf6, 3, DW210X_WRITE_MSG);
			break;
		case 0x60:
			if (msg[0].flags == 0) {
			/* write to tuner pll */
				buf6[0] = 0x2c;
				buf6[1] = 5;
				buf6[2] = 0xc0;
				buf6[3] = msg[0].buf[0];
				buf6[4] = msg[0].buf[1];
				buf6[5] = msg[0].buf[2];
				buf6[6] = msg[0].buf[3];
				ret = dw210x_op_rw(d->udev, 0xb2, 0, 0,
						buf6, 7, DW210X_WRITE_MSG);
			} else {
			/* read from tuner */
				ret = dw210x_op_rw(d->udev, 0xb5, 0, 0,
						buf6, 1, DW210X_READ_MSG);
				msg[0].buf[0] = buf6[0];
			}
			break;
		case (DW2102_RC_QUERY):
			ret  = dw210x_op_rw(d->udev, 0xb8, 0, 0,
					buf6, 2, DW210X_READ_MSG);
			msg[0].buf[0] = buf6[0];
			msg[0].buf[1] = buf6[1];
			break;
		case (DW2102_VOLTAGE_CTRL):
			buf6[0] = 0x30;
			buf6[1] = msg[0].buf[0];
			ret = dw210x_op_rw(d->udev, 0xb2, 0, 0,
					buf6, 2, DW210X_WRITE_MSG);
			break;
		}

		break;
	}

	mutex_unlock(&d->i2c_mutex);
	return num;
}

static int dw2102_serit_i2c_transfer(struct i2c_adapter *adap,
						struct i2c_msg msg[], int num)
{
	struct dvb_usb_device *d = i2c_get_adapdata(adap);
	int ret = 0;
	u8 buf6[] = {0, 0, 0, 0, 0, 0, 0};

	if (!d)
		return -ENODEV;
	if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
		return -EAGAIN;

	switch (num) {
	case 2:
		/* read si2109 register by number */
		buf6[0] = 0xd0;
		buf6[1] = msg[0].len;
		buf6[2] = msg[0].buf[0];
		ret = dw210x_op_rw(d->udev, 0xc2, 0, 0,
				buf6, msg[0].len + 2, DW210X_WRITE_MSG);
		/* read si2109 register */
		ret = dw210x_op_rw(d->udev, 0xc3, 0xd0, 0,
				buf6, msg[1].len + 2, DW210X_READ_MSG);
		memcpy(msg[1].buf, buf6 + 2, msg[1].len);

		break;
	case 1:
		switch (msg[0].addr) {
		case 0x68:
			/* write to si2109 register */
			buf6[0] = 0xd0;
			buf6[1] = msg[0].len;
			memcpy(buf6 + 2, msg[0].buf, msg[0].len);
			ret = dw210x_op_rw(d->udev, 0xc2, 0, 0, buf6,
					msg[0].len + 2, DW210X_WRITE_MSG);
			break;
		case(DW2102_RC_QUERY):
			ret  = dw210x_op_rw(d->udev, 0xb8, 0, 0,
					buf6, 2, DW210X_READ_MSG);
			msg[0].buf[0] = buf6[0];
			msg[0].buf[1] = buf6[1];
			break;
		case(DW2102_VOLTAGE_CTRL):
			buf6[0] = 0x30;
			buf6[1] = msg[0].buf[0];
			ret = dw210x_op_rw(d->udev, 0xb2, 0, 0,
					buf6, 2, DW210X_WRITE_MSG);
			break;
		}
		break;
	}

	mutex_unlock(&d->i2c_mutex);
	return num;
}
static int dw2102_earda_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[], int num)
{
	struct dvb_usb_device *d = i2c_get_adapdata(adap);
	int ret = 0;

	if (!d)
		return -ENODEV;
	if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
		return -EAGAIN;

	switch (num) {
	case 2: {
		/* read */
		/* first write first register number */
		u8 ibuf [msg[1].len + 2], obuf[3];
		obuf[0] = 0xd0;
		obuf[1] = msg[0].len;
		obuf[2] = msg[0].buf[0];
		ret = dw210x_op_rw(d->udev, 0xc2, 0, 0,
				obuf, msg[0].len + 2, DW210X_WRITE_MSG);
		/* second read registers */
		ret = dw210x_op_rw(d->udev, 0xc3, 0xd1 , 0,
				ibuf, msg[1].len + 2, DW210X_READ_MSG);
		memcpy(msg[1].buf, ibuf + 2, msg[1].len);

		break;
	}
	case 1:
		switch (msg[0].addr) {
		case 0x68: {
			/* write to register */
			u8 obuf[msg[0].len + 2];
			obuf[0] = 0xd0;
			obuf[1] = msg[0].len;
			memcpy(obuf + 2, msg[0].buf, msg[0].len);
			ret = dw210x_op_rw(d->udev, 0xc2, 0, 0,
					obuf, msg[0].len + 2, DW210X_WRITE_MSG);
			break;
		}
		case 0x61: {
			/* write to tuner */
			u8 obuf[msg[0].len + 2];
			obuf[0] = 0xc2;
			obuf[1] = msg[0].len;
			memcpy(obuf + 2, msg[0].buf, msg[0].len);
			ret = dw210x_op_rw(d->udev, 0xc2, 0, 0,
					obuf, msg[0].len + 2, DW210X_WRITE_MSG);
			break;
		}
		case(DW2102_RC_QUERY): {
			u8 ibuf[2];
			ret  = dw210x_op_rw(d->udev, 0xb8, 0, 0,
					ibuf, 2, DW210X_READ_MSG);
			memcpy(msg[0].buf, ibuf , 2);
			break;
		}
		case(DW2102_VOLTAGE_CTRL): {
			u8 obuf[2];
			obuf[0] = 0x30;
			obuf[1] = msg[0].buf[0];
			ret = dw210x_op_rw(d->udev, 0xb2, 0, 0,
					obuf, 2, DW210X_WRITE_MSG);
			break;
		}
		}

		break;
	}

	mutex_unlock(&d->i2c_mutex);
	return num;
}

static int dw2104_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[], int num)
{
	struct dvb_usb_device *d = i2c_get_adapdata(adap);
	int ret = 0;
	int len, i;

	if (!d)
		return -ENODEV;
	if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
		return -EAGAIN;

	switch (num) {
	case 2: {
		/* read */
		/* first write first register number */
		u8 ibuf [msg[1].len + 2], obuf[3];
		obuf[0] = 0xaa;
		obuf[1] = msg[0].len;
		obuf[2] = msg[0].buf[0];
		ret = dw210x_op_rw(d->udev, 0xc2, 0, 0,
				obuf, msg[0].len + 2, DW210X_WRITE_MSG);
		/* second read registers */
		ret = dw210x_op_rw(d->udev, 0xc3, 0xab , 0,
				ibuf, msg[1].len + 2, DW210X_READ_MSG);
		memcpy(msg[1].buf, ibuf + 2, msg[1].len);

		break;
	}
	case 1:
		switch (msg[0].addr) {
		case 0x55: {
			if (msg[0].buf[0] == 0xf7) {
				/* firmware */
				/* Write in small blocks */
				u8 obuf[19];
				obuf[0] = 0xaa;
				obuf[1] = 0x11;
				obuf[2] = 0xf7;
				len = msg[0].len - 1;
				i = 1;
				do {
					memcpy(obuf + 3, msg[0].buf + i, (len > 16 ? 16 : len));
					ret = dw210x_op_rw(d->udev, 0xc2, 0, 0,
						obuf, (len > 16 ? 16 : len) + 3, DW210X_WRITE_MSG);
					i += 16;
					len -= 16;
				} while (len > 0);
			} else {
				/* write to register */
				u8 obuf[msg[0].len + 2];
				obuf[0] = 0xaa;
				obuf[1] = msg[0].len;
				memcpy(obuf + 2, msg[0].buf, msg[0].len);
				ret = dw210x_op_rw(d->udev, 0xc2, 0, 0,
						obuf, msg[0].len + 2, DW210X_WRITE_MSG);
			}
			break;
		}
		case(DW2102_RC_QUERY): {
			u8 ibuf[2];
			ret  = dw210x_op_rw(d->udev, 0xb8, 0, 0,
					ibuf, 2, DW210X_READ_MSG);
			memcpy(msg[0].buf, ibuf , 2);
			break;
		}
		case(DW2102_VOLTAGE_CTRL): {
			u8 obuf[2];
			obuf[0] = 0x30;
			obuf[1] = msg[0].buf[0];
			ret = dw210x_op_rw(d->udev, 0xb2, 0, 0,
					obuf, 2, DW210X_WRITE_MSG);
			break;
		}
		}

		break;
	}

	mutex_unlock(&d->i2c_mutex);
	return num;
}

static u32 dw210x_i2c_func(struct i2c_adapter *adapter)
{
	return I2C_FUNC_I2C;
}

static struct i2c_algorithm dw2102_i2c_algo = {
	.master_xfer = dw2102_i2c_transfer,
	.functionality = dw210x_i2c_func,
};

static struct i2c_algorithm dw2102_serit_i2c_algo = {
	.master_xfer = dw2102_serit_i2c_transfer,
	.functionality = dw210x_i2c_func,
};

static struct i2c_algorithm dw2102_earda_i2c_algo = {
	.master_xfer = dw2102_earda_i2c_transfer,
	.functionality = dw210x_i2c_func,
};

static struct i2c_algorithm dw2104_i2c_algo = {
	.master_xfer = dw2104_i2c_transfer,
	.functionality = dw210x_i2c_func,
};

static int dw210x_read_mac_address(struct dvb_usb_device *d, u8 mac[6])
{
	int i;
	u8 ibuf[] = {0, 0};
	u8 eeprom[256], eepromline[16];

	for (i = 0; i < 256; i++) {
		if (dw210x_op_rw(d->udev, 0xb6, 0xa0 , i, ibuf, 2, DW210X_READ_MSG) < 0) {
			err("read eeprom failed.");
			return -1;
		} else {
			eepromline[i%16] = ibuf[0];
			eeprom[i] = ibuf[0];
		}
		if ((i % 16) == 15) {
			deb_xfer("%02x: ", i - 15);
			debug_dump(eepromline, 16, deb_xfer);
		}
	}
	memcpy(mac, eeprom + 8, 6);
	return 0;
};

static int dw210x_set_voltage(struct dvb_frontend *fe, fe_sec_voltage_t voltage)
{
	static u8 command_13v[1] = {0x00};
	static u8 command_18v[1] = {0x01};
	struct i2c_msg msg[] = {
		{.addr = DW2102_VOLTAGE_CTRL, .flags = 0,
			.buf = command_13v, .len = 1},
	};