[deliverable/linux.git] / drivers / media / usb / dvb-usb / vp702x-fe.c

/* DVB frontend part of the 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@posteo.de>
 *
 * Thanks to Twinhan who kindly provided hardware and information.
 *
 * This file can be removed soon, after the DST-driver is rewritten to provice
 * the frontend-controlling separately.
 *
 *	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"

struct vp702x_fe_state {
	struct dvb_frontend fe;
	struct dvb_usb_device *d;

	struct dvb_frontend_ops ops;

	enum fe_sec_voltage voltage;
	enum fe_sec_tone_mode tone_mode;

	u8 lnb_buf[8];

	u8 lock;
	u8 sig;
	u8 snr;

	unsigned long next_status_check;
	unsigned long status_check_interval;
};

static int vp702x_fe_refresh_state(struct vp702x_fe_state *st)
{
	struct vp702x_device_state *dst = st->d->priv;
	u8 *buf;

	if (time_after(jiffies, st->next_status_check)) {
		mutex_lock(&dst->buf_mutex);
		buf = dst->buf;

		vp702x_usb_in_op(st->d, READ_STATUS, 0, 0, buf, 10);
		st->lock = buf[4];

		vp702x_usb_in_op(st->d, READ_TUNER_REG_REQ, 0x11, 0, buf, 1);
		st->snr = buf[0];

		vp702x_usb_in_op(st->d, READ_TUNER_REG_REQ, 0x15, 0, buf, 1);
		st->sig = buf[0];

		mutex_unlock(&dst->buf_mutex);
		st->next_status_check = jiffies + (st->status_check_interval*HZ)/1000;
	}
	return 0;
}

static u8 vp702x_chksum(u8 *buf,int f, int count)
{
	u8 s = 0;
	int i;
	for (i = f; i < f+count; i++)
		s += buf[i];
	return ~s+1;
}

static int vp702x_fe_read_status(struct dvb_frontend *fe,
				 enum fe_status *status)
{
	struct vp702x_fe_state *st = fe->demodulator_priv;
	vp702x_fe_refresh_state(st);
	deb_fe("%s\n",__func__);

	if (st->lock == 0)
		*status = FE_HAS_LOCK | FE_HAS_SYNC | FE_HAS_VITERBI | FE_HAS_SIGNAL | FE_HAS_CARRIER;
	else
		*status = 0;

	if (*status & FE_HAS_LOCK)
		st->status_check_interval = 1000;
	else
		st->status_check_interval = 250;
	return 0;
}

/* not supported by this Frontend */
static int vp702x_fe_read_ber(struct dvb_frontend* fe, u32 *ber)
{
	struct vp702x_fe_state *st = fe->demodulator_priv;
	vp702x_fe_refresh_state(st);
	*ber = 0;
	return 0;
}

/* not supported by this Frontend */
static int vp702x_fe_read_unc_blocks(struct dvb_frontend* fe, u32 *unc)
{
	struct vp702x_fe_state *st = fe->demodulator_priv;
	vp702x_fe_refresh_state(st);
	*unc = 0;
	return 0;
}

static int vp702x_fe_read_signal_strength(struct dvb_frontend* fe, u16 *strength)
{
	struct vp702x_fe_state *st = fe->demodulator_priv;
	vp702x_fe_refresh_state(st);

	*strength = (st->sig << 8) | st->sig;
	return 0;
}

static int vp702x_fe_read_snr(struct dvb_frontend* fe, u16 *snr)
{
	u8 _snr;
	struct vp702x_fe_state *st = fe->demodulator_priv;
	vp702x_fe_refresh_state(st);

	_snr = (st->snr & 0x1f) * 0xff / 0x1f;
	*snr = (_snr << 8) | _snr;
	return 0;
}

static int vp702x_fe_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings *tune)
{
	deb_fe("%s\n",__func__);
	tune->min_delay_ms = 2000;
	return 0;
}

static int vp702x_fe_set_frontend(struct dvb_frontend *fe)
{
	struct dtv_frontend_properties *fep = &fe->dtv_property_cache;
	struct vp702x_fe_state *st = fe->demodulator_priv;
	struct vp702x_device_state *dst = st->d->priv;
	u32 freq = fep->frequency/1000;
	/*CalFrequency*/
/*	u16 frequencyRef[16] = { 2, 4, 8, 16, 32, 64, 128, 256, 24, 5, 10, 20, 40, 80, 160, 320 }; */
	u64 sr;
	u8 *cmd;

	mutex_lock(&dst->buf_mutex);

	cmd = dst->buf;
	memset(cmd, 0, 10);

	cmd[0] = (freq >> 8) & 0x7f;
	cmd[1] =  freq       & 0xff;
	cmd[2] = 1; /* divrate == 4 -> frequencyRef[1] -> 1 here */

	sr = (u64) (fep->symbol_rate/1000) << 20;
	do_div(sr,88000);
	cmd[3] = (sr >> 12) & 0xff;
	cmd[4] = (sr >> 4)  & 0xff;
	cmd[5] = (sr << 4)  & 0xf0;

	deb_fe("setting frontend to: %u -> %u (%x) LNB-based GHz, symbolrate: %d -> %lu (%lx)\n",
			fep->frequency, freq, freq, fep->symbol_rate,
			(unsigned long) sr, (unsigned long) sr);

/*	if (fep->inversion == INVERSION_ON)
		cmd[6] |= 0x80; */

	if (st->voltage == SEC_VOLTAGE_18)
		cmd[6] |= 0x40;

/*	if (fep->symbol_rate > 8000000)
		cmd[6] |= 0x20;

	if (fep->frequency < 1531000)
		cmd[6] |= 0x04;

	if (st->tone_mode == SEC_TONE_ON)
		cmd[6] |= 0x01;*/

	cmd[7] = vp702x_chksum(cmd,0,7);

	st->status_check_interval = 250;
	st->next_status_check = jiffies;

	vp702x_usb_inout_op(st->d, cmd, 8, cmd, 10, 100);

	if (cmd[2] == 0 && cmd[3] == 0)
		deb_fe("tuning failed.\n");
	else
		deb_fe("tuning succeeded.\n");

	mutex_unlock(&dst->buf_mutex);

	return 0;
}

static int vp702x_fe_init(struct dvb_frontend *fe)
{
	struct vp702x_fe_state *st = fe->demodulator_priv;
	deb_fe("%s\n",__func__);
	vp702x_usb_in_op(st->d, RESET_TUNER, 0, 0, NULL, 0);
	return 0;
}

static int vp702x_fe_sleep(struct dvb_frontend *fe)
{
	deb_fe("%s\n",__func__);
	return 0;
}

static int vp702x_fe_send_diseqc_msg (struct dvb_frontend* fe,
				    struct dvb_diseqc_master_cmd *m)
{
	u8 *cmd;
	struct vp702x_fe_state *st = fe->demodulator_priv;
	struct vp702x_device_state *dst = st->d->priv;

	deb_fe("%s\n",__func__);

	if (m->msg_len > 4)
		return -EINVAL;

	mutex_lock(&dst->buf_mutex);

	cmd = dst->buf;
	cmd[1] = SET_DISEQC_CMD;
	cmd[2] = m->msg_len;
	memcpy(&cmd[3], m->msg, m->msg_len);
	cmd[7] = vp702x_chksum(cmd, 0, 7);

	vp702x_usb_inout_op(st->d, cmd, 8, cmd, 10, 100);

	if (cmd[2] == 0 && cmd[3] == 0)
		deb_fe("diseqc cmd failed.\n");
	else
		deb_fe("diseqc cmd succeeded.\n");

	mutex_unlock(&dst->buf_mutex);

	return 0;
}

static int vp702x_fe_send_diseqc_burst(struct dvb_frontend *fe,
				       enum fe_sec_mini_cmd burst)
{
	deb_fe("%s\n",__func__);
	return 0;
}

static int vp702x_fe_set_tone(struct dvb_frontend *fe,
			      enum fe_sec_tone_mode tone)
{
	struct vp702x_fe_state *st = fe->demodulator_priv;
	struct vp702x_device_state *dst = st->d->priv;
	u8 *buf;

	deb_fe("%s\n",__func__);

	st->tone_mode = tone;

	if (tone == SEC_TONE_ON)
		st->lnb_buf[2] = 0x02;
	else
		st->lnb_buf[2] = 0x00;

	st->lnb_buf[7] = vp702x_chksum(st->lnb_buf, 0, 7);

	mutex_lock(&dst->buf_mutex);

	buf = dst->buf;
	memcpy(buf, st->lnb_buf, 8);

	vp702x_usb_inout_op(st->d, buf, 8, buf, 10, 100);
	if (buf[2] == 0 && buf[3] == 0)
		deb_fe("set_tone cmd failed.\n");
	else
		deb_fe("set_tone cmd succeeded.\n");

	mutex_unlock(&dst->buf_mutex);

	return 0;
}

static int vp702x_fe_set_voltage(struct dvb_frontend *fe,
				 enum fe_sec_voltage voltage)
{
	struct vp702x_fe_state *st = fe->demodulator_priv;
	struct vp702x_device_state *dst = st->d->priv;
	u8 *buf;
	deb_fe("%s\n",__func__);

	st->voltage = voltage;

	if (voltage != SEC_VOLTAGE_OFF)
		st->lnb_buf[4] = 0x01;
	else
		st->lnb_buf[4] = 0x00;

	st->lnb_buf[7] = vp702x_chksum(st->lnb_buf, 0, 7);

	mutex_lock(&dst->buf_mutex);

	buf = dst->buf;
	memcpy(buf, st->lnb_buf, 8);

	vp702x_usb_inout_op(st->d, buf, 8, buf, 10, 100);
	if (buf[2] == 0 && buf[3] == 0)
		deb_fe("set_voltage cmd failed.\n");
	else
		deb_fe("set_voltage cmd succeeded.\n");

	mutex_unlock(&dst->buf_mutex);
	return 0;
}

static void vp702x_fe_release(struct dvb_frontend* fe)
{
	struct vp702x_fe_state *st = fe->demodulator_priv;
	kfree(st);
}

static struct dvb_frontend_ops vp702x_fe_ops;

struct dvb_frontend * vp702x_fe_attach(struct dvb_usb_device *d)
{
	struct vp702x_fe_state *s = kzalloc(sizeof(struct vp702x_fe_state), GFP_KERNEL);
	if (s == NULL)
		goto error;

	s->d = d;

	memcpy(&s->fe.ops,&vp702x_fe_ops,sizeof(struct dvb_frontend_ops));
	s->fe.demodulator_priv = s;

	s->lnb_buf[1] = SET_LNB_POWER;
	s->lnb_buf[3] = 0xff; /* 0=tone burst, 2=data burst, ff=off */

	return &s->fe;
error:
	return NULL;
}


static struct dvb_frontend_ops vp702x_fe_ops = {
	.delsys = { SYS_DVBS },
	.info = {
		.name           = "Twinhan DST-like frontend (VP7021/VP7020) DVB-S",
		.frequency_min       = 950000,
		.frequency_max       = 2150000,
		.frequency_stepsize  = 1000,   /* kHz for QPSK frontends */
		.frequency_tolerance = 0,
		.symbol_rate_min     = 1000000,
		.symbol_rate_max     = 45000000,
		.symbol_rate_tolerance = 500,  /* ppm */
		.caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
		FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 |
		FE_CAN_QPSK |
		FE_CAN_FEC_AUTO
	},
	.release = vp702x_fe_release,

	.init  = vp702x_fe_init,
	.sleep = vp702x_fe_sleep,

	.set_frontend = vp702x_fe_set_frontend,
	.get_tune_settings = vp702x_fe_get_tune_settings,

	.read_status = vp702x_fe_read_status,
	.read_ber = vp702x_fe_read_ber,
	.read_signal_strength = vp702x_fe_read_signal_strength,
	.read_snr = vp702x_fe_read_snr,
	.read_ucblocks = vp702x_fe_read_unc_blocks,

	.diseqc_send_master_cmd = vp702x_fe_send_diseqc_msg,
	.diseqc_send_burst = vp702x_fe_send_diseqc_burst,
	.set_tone = vp702x_fe_set_tone,
	.set_voltage = vp702x_fe_set_voltage,
};
Commit	Line	Data
3706a4da PB	1	/* DVB frontend part of the Linux driver for the TwinhanDTV StarBox USB2.0
	2	* DVB-S receiver.
	3	*
	4	* Copyright (C) 2005 Ralph Metzler <rjkm@metzlerbros.de>
	5	* Metzler Brothers Systementwicklung GbR
	6	*
99e44da7	7	* Copyright (C) 2005 Patrick Boettcher <patrick.boettcher@posteo.de>
3706a4da PB	8	*
	9	* Thanks to Twinhan who kindly provided hardware and information.
	10	*
	11	* This file can be removed soon, after the DST-driver is rewritten to provice
	12	* the frontend-controlling separately.
	13	*
	14	* This program is free software; you can redistribute it and/or modify it
	15	* under the terms of the GNU General Public License as published by the Free
	16	* Software Foundation, version 2.
	17	*
	18	* see Documentation/dvb/README.dvb-usb for more information
	19	*
	20	*/
	21	#include "vp702x.h"
	22
	23	struct vp702x_fe_state {
	24	struct dvb_frontend fe;
	25	struct dvb_usb_device *d;
	26
0540c496 PB	27	struct dvb_frontend_ops ops;
0540c496 PB	28
0df289a2 MCC	29	enum fe_sec_voltage voltage;
0df289a2 MCC	30	enum fe_sec_tone_mode tone_mode;
3706a4da PB	31
	32	u8 lnb_buf[8];
	33
	34	u8 lock;
	35	u8 sig;
	36	u8 snr;
	37
	38	unsigned long next_status_check;
	39	unsigned long status_check_interval;
	40	};
	41
	42	static int vp702x_fe_refresh_state(struct vp702x_fe_state *st)
	43	{
60f81f12	44	struct vp702x_device_state *dst = st->d->priv;
57873c72 FM	45	u8 *buf;
	46
	47	if (time_after(jiffies, st->next_status_check)) {
60f81f12 FM	48	mutex_lock(&dst->buf_mutex);
	49	buf = dst->buf;
	50
57873c72	51	vp702x_usb_in_op(st->d, READ_STATUS, 0, 0, buf, 10);
3706a4da	52	st->lock = buf[4];
57873c72 FM	53
	54	vp702x_usb_in_op(st->d, READ_TUNER_REG_REQ, 0x11, 0, buf, 1);
	55	st->snr = buf[0];
	56
	57	vp702x_usb_in_op(st->d, READ_TUNER_REG_REQ, 0x15, 0, buf, 1);
	58	st->sig = buf[0];
	59
60f81f12	60	mutex_unlock(&dst->buf_mutex);
3706a4da PB	61	st->next_status_check = jiffies + (st->status_check_interval*HZ)/1000;
	62	}
	63	return 0;
	64	}
	65
	66	static u8 vp702x_chksum(u8 *buf,int f, int count)
	67	{
	68	u8 s = 0;
	69	int i;
	70	for (i = f; i < f+count; i++)
	71	s += buf[i];
	72	return ~s+1;
	73	}
	74
0df289a2 MCC	75	static int vp702x_fe_read_status(struct dvb_frontend *fe,
0df289a2 MCC	76	enum fe_status *status)
3706a4da PB	77	{
	78	struct vp702x_fe_state *st = fe->demodulator_priv;
	79	vp702x_fe_refresh_state(st);
708bebdd	80	deb_fe("%s\n",__func__);
3706a4da PB	81
	82	if (st->lock == 0)
	83	*status = FE_HAS_LOCK \| FE_HAS_SYNC \| FE_HAS_VITERBI \| FE_HAS_SIGNAL \| FE_HAS_CARRIER;
	84	else
	85	*status = 0;
	86
3706a4da PB	87	if (*status & FE_HAS_LOCK)
	88	st->status_check_interval = 1000;
	89	else
	90	st->status_check_interval = 250;
	91	return 0;
	92	}
	93
	94	/* not supported by this Frontend */
	95	static int vp702x_fe_read_ber(struct dvb_frontend* fe, u32 *ber)
	96	{
	97	struct vp702x_fe_state *st = fe->demodulator_priv;
	98	vp702x_fe_refresh_state(st);
	99	*ber = 0;
	100	return 0;
	101	}
	102
	103	/* not supported by this Frontend */
	104	static int vp702x_fe_read_unc_blocks(struct dvb_frontend* fe, u32 *unc)
	105	{
	106	struct vp702x_fe_state *st = fe->demodulator_priv;
	107	vp702x_fe_refresh_state(st);
	108	*unc = 0;
	109	return 0;
	110	}
	111
	112	static int vp702x_fe_read_signal_strength(struct dvb_frontend* fe, u16 *strength)
	113	{
	114	struct vp702x_fe_state *st = fe->demodulator_priv;
	115	vp702x_fe_refresh_state(st);
	116
	117	*strength = (st->sig << 8) \| st->sig;
	118	return 0;
	119	}
	120
	121	static int vp702x_fe_read_snr(struct dvb_frontend* fe, u16 *snr)
	122	{
	123	u8 _snr;
	124	struct vp702x_fe_state *st = fe->demodulator_priv;
	125	vp702x_fe_refresh_state(st);
	126
	127	_snr = (st->snr & 0x1f) * 0xff / 0x1f;
	128	*snr = (_snr << 8) \| _snr;
	129	return 0;
	130	}
	131
	132	static int vp702x_fe_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings *tune)
	133	{
708bebdd	134	deb_fe("%s\n",__func__);
3706a4da PB	135	tune->min_delay_ms = 2000;
	136	return 0;
	137	}
	138
4fa102d5	139	static int vp702x_fe_set_frontend(struct dvb_frontend *fe)
3706a4da	140	{
4fa102d5	141	struct dtv_frontend_properties *fep = &fe->dtv_property_cache;
3706a4da	142	struct vp702x_fe_state *st = fe->demodulator_priv;
60f81f12	143	struct vp702x_device_state *dst = st->d->priv;
3706a4da PB	144	u32 freq = fep->frequency/1000;
	145	/CalFrequency/
	146	/* u16 frequencyRef[16] = { 2, 4, 8, 16, 32, 64, 128, 256, 24, 5, 10, 20, 40, 80, 160, 320 }; */
	147	u64 sr;
57873c72 FM	148	u8 *cmd;
57873c72 FM	149
60f81f12 FM	150	mutex_lock(&dst->buf_mutex);
	151
	152	cmd = dst->buf;
	153	memset(cmd, 0, 10);
3706a4da PB	154
	155	cmd[0] = (freq >> 8) & 0x7f;
	156	cmd[1] = freq & 0xff;
	157	cmd[2] = 1; /* divrate == 4 -> frequencyRef[1] -> 1 here */
	158
4fa102d5	159	sr = (u64) (fep->symbol_rate/1000) << 20;
3706a4da PB	160	do_div(sr,88000);
	161	cmd[3] = (sr >> 12) & 0xff;
	162	cmd[4] = (sr >> 4) & 0xff;
	163	cmd[5] = (sr << 4) & 0xf0;
	164
4ae5c2e5	165	deb_fe("setting frontend to: %u -> %u (%x) LNB-based GHz, symbolrate: %d -> %lu (%lx)\n",
4fa102d5	166	fep->frequency, freq, freq, fep->symbol_rate,
4ae5c2e5	167	(unsigned long) sr, (unsigned long) sr);
3706a4da PB	168
	169	/* if (fep->inversion == INVERSION_ON)
	170	cmd[6] \|= 0x80; */
	171
	172	if (st->voltage == SEC_VOLTAGE_18)
	173	cmd[6] \|= 0x40;
	174
4fa102d5	175	/* if (fep->symbol_rate > 8000000)
3706a4da PB	176	cmd[6] \|= 0x20;
	177
	178	if (fep->frequency < 1531000)
	179	cmd[6] \|= 0x04;
	180
	181	if (st->tone_mode == SEC_TONE_ON)
	182	cmd[6] \|= 0x01;*/
	183
	184	cmd[7] = vp702x_chksum(cmd,0,7);
	185
	186	st->status_check_interval = 250;
	187	st->next_status_check = jiffies;
	188
57873c72	189	vp702x_usb_inout_op(st->d, cmd, 8, cmd, 10, 100);
3706a4da	190
57873c72	191	if (cmd[2] == 0 && cmd[3] == 0)
3706a4da PB	192	deb_fe("tuning failed.\n");
	193	else
	194	deb_fe("tuning succeeded.\n");
	195
60f81f12 FM	196	mutex_unlock(&dst->buf_mutex);
60f81f12 FM	197
3706a4da PB	198	return 0;
	199	}
	200
0540c496 PB	201	static int vp702x_fe_init(struct dvb_frontend *fe)
	202	{
	203	struct vp702x_fe_state *st = fe->demodulator_priv;
708bebdd	204	deb_fe("%s\n",__func__);
0540c496 PB	205	vp702x_usb_in_op(st->d, RESET_TUNER, 0, 0, NULL, 0);
	206	return 0;
	207	}
	208
	209	static int vp702x_fe_sleep(struct dvb_frontend *fe)
	210	{
708bebdd	211	deb_fe("%s\n",__func__);
0540c496 PB	212	return 0;
	213	}
	214
3706a4da	215	static int vp702x_fe_send_diseqc_msg (struct dvb_frontend* fe,
50c25fff	216	struct dvb_diseqc_master_cmd *m)
3706a4da	217	{
57873c72	218	u8 *cmd;
5ad5e484	219	struct vp702x_fe_state *st = fe->demodulator_priv;
60f81f12	220	struct vp702x_device_state *dst = st->d->priv;
3706a4da	221
708bebdd	222	deb_fe("%s\n",__func__);
3706a4da	223
60f81f12 FM	224	if (m->msg_len > 4)
	225	return -EINVAL;
	226
	227	mutex_lock(&dst->buf_mutex);
3706a4da	228
60f81f12	229	cmd = dst->buf;
3706a4da PB	230	cmd[1] = SET_DISEQC_CMD;
	231	cmd[2] = m->msg_len;
	232	memcpy(&cmd[3], m->msg, m->msg_len);
57873c72	233	cmd[7] = vp702x_chksum(cmd, 0, 7);
3706a4da	234
57873c72	235	vp702x_usb_inout_op(st->d, cmd, 8, cmd, 10, 100);
3706a4da	236
57873c72	237	if (cmd[2] == 0 && cmd[3] == 0)
5ad5e484 PE	238	deb_fe("diseqc cmd failed.\n");
	239	else
	240	deb_fe("diseqc cmd succeeded.\n");
60f81f12 FM	241
	242	mutex_unlock(&dst->buf_mutex);
	243
	244	return 0;
3706a4da PB	245	}
3706a4da PB	246
0df289a2 MCC	247	static int vp702x_fe_send_diseqc_burst(struct dvb_frontend *fe,
0df289a2 MCC	248	enum fe_sec_mini_cmd burst)
3706a4da	249	{
708bebdd	250	deb_fe("%s\n",__func__);
3706a4da PB	251	return 0;
	252	}
	253
0df289a2 MCC	254	static int vp702x_fe_set_tone(struct dvb_frontend *fe,
0df289a2 MCC	255	enum fe_sec_tone_mode tone)
3706a4da PB	256	{
3706a4da PB	257	struct vp702x_fe_state *st = fe->demodulator_priv;
60f81f12	258	struct vp702x_device_state *dst = st->d->priv;
57873c72 FM	259	u8 *buf;
57873c72 FM	260
708bebdd	261	deb_fe("%s\n",__func__);
3706a4da PB	262
	263	st->tone_mode = tone;
	264
	265	if (tone == SEC_TONE_ON)
	266	st->lnb_buf[2] = 0x02;
	267	else
	268	st->lnb_buf[2] = 0x00;
	269
57873c72	270	st->lnb_buf[7] = vp702x_chksum(st->lnb_buf, 0, 7);
60f81f12 FM	271
	272	mutex_lock(&dst->buf_mutex);
	273
	274	buf = dst->buf;
57873c72	275	memcpy(buf, st->lnb_buf, 8);
3706a4da	276
57873c72 FM	277	vp702x_usb_inout_op(st->d, buf, 8, buf, 10, 100);
57873c72 FM	278	if (buf[2] == 0 && buf[3] == 0)
3706a4da PB	279	deb_fe("set_tone cmd failed.\n");
	280	else
	281	deb_fe("set_tone cmd succeeded.\n");
	282
60f81f12 FM	283	mutex_unlock(&dst->buf_mutex);
60f81f12 FM	284
3706a4da PB	285	return 0;
	286	}
	287
0df289a2 MCC	288	static int vp702x_fe_set_voltage(struct dvb_frontend *fe,
0df289a2 MCC	289	enum fe_sec_voltage voltage)
3706a4da PB	290	{
3706a4da PB	291	struct vp702x_fe_state *st = fe->demodulator_priv;
60f81f12	292	struct vp702x_device_state *dst = st->d->priv;
57873c72	293	u8 *buf;
708bebdd	294	deb_fe("%s\n",__func__);
3706a4da PB	295
	296	st->voltage = voltage;
	297
	298	if (voltage != SEC_VOLTAGE_OFF)
	299	st->lnb_buf[4] = 0x01;
	300	else
	301	st->lnb_buf[4] = 0x00;
	302
57873c72	303	st->lnb_buf[7] = vp702x_chksum(st->lnb_buf, 0, 7);
60f81f12 FM	304
	305	mutex_lock(&dst->buf_mutex);
	306
	307	buf = dst->buf;
57873c72	308	memcpy(buf, st->lnb_buf, 8);
3706a4da	309
57873c72 FM	310	vp702x_usb_inout_op(st->d, buf, 8, buf, 10, 100);
57873c72 FM	311	if (buf[2] == 0 && buf[3] == 0)
3706a4da PB	312	deb_fe("set_voltage cmd failed.\n");
	313	else
	314	deb_fe("set_voltage cmd succeeded.\n");
	315
60f81f12	316	mutex_unlock(&dst->buf_mutex);
3706a4da PB	317	return 0;
	318	}
	319
	320	static void vp702x_fe_release(struct dvb_frontend* fe)
	321	{
	322	struct vp702x_fe_state *st = fe->demodulator_priv;
	323	kfree(st);
	324	}
	325
	326	static struct dvb_frontend_ops vp702x_fe_ops;
	327
	328	struct dvb_frontend * vp702x_fe_attach(struct dvb_usb_device *d)
	329	{
7408187d	330	struct vp702x_fe_state *s = kzalloc(sizeof(struct vp702x_fe_state), GFP_KERNEL);
3706a4da PB	331	if (s == NULL)
3706a4da PB	332	goto error;
3706a4da PB	333
3706a4da PB	334	s->d = d;
dea74869 PB	335
dea74869 PB	336	memcpy(&s->fe.ops,&vp702x_fe_ops,sizeof(struct dvb_frontend_ops));
3706a4da PB	337	s->fe.demodulator_priv = s;
	338
	339	s->lnb_buf[1] = SET_LNB_POWER;
	340	s->lnb_buf[3] = 0xff; /* 0=tone burst, 2=data burst, ff=off */
	341
8397703e	342	return &s->fe;
3706a4da PB	343	error:
3706a4da PB	344	return NULL;
3706a4da PB	345	}
	346
	347
	348	static struct dvb_frontend_ops vp702x_fe_ops = {
4fa102d5	349	.delsys = { SYS_DVBS },
3706a4da PB	350	.info = {
3706a4da PB	351	.name = "Twinhan DST-like frontend (VP7021/VP7020) DVB-S",
3706a4da PB	352	.frequency_min = 950000,
	353	.frequency_max = 2150000,
	354	.frequency_stepsize = 1000, /* kHz for QPSK frontends */
	355	.frequency_tolerance = 0,
	356	.symbol_rate_min = 1000000,
	357	.symbol_rate_max = 45000000,
	358	.symbol_rate_tolerance = 500, /* ppm */
	359	.caps = FE_CAN_FEC_1_2 \| FE_CAN_FEC_2_3 \| FE_CAN_FEC_3_4 \|
	360	FE_CAN_FEC_5_6 \| FE_CAN_FEC_7_8 \|
	361	FE_CAN_QPSK \|
	362	FE_CAN_FEC_AUTO
	363	},
	364	.release = vp702x_fe_release,
	365
0540c496 PB	366	.init = vp702x_fe_init,
0540c496 PB	367	.sleep = vp702x_fe_sleep,
3706a4da	368
4fa102d5	369	.set_frontend = vp702x_fe_set_frontend,
3706a4da PB	370	.get_tune_settings = vp702x_fe_get_tune_settings,
	371
	372	.read_status = vp702x_fe_read_status,
	373	.read_ber = vp702x_fe_read_ber,
	374	.read_signal_strength = vp702x_fe_read_signal_strength,
	375	.read_snr = vp702x_fe_read_snr,
	376	.read_ucblocks = vp702x_fe_read_unc_blocks,
	377
	378	.diseqc_send_master_cmd = vp702x_fe_send_diseqc_msg,
	379	.diseqc_send_burst = vp702x_fe_send_diseqc_burst,
	380	.set_tone = vp702x_fe_set_tone,
	381	.set_voltage = vp702x_fe_set_voltage,
	382	};