dst.c

来自「trident tm5600的linux驱动」· C语言 代码 · 共 1,866 行 · 第 1/4 页

		dprintk(verbose, DST_DEBUG, 1, "DST Communication initialization failed.");
		goto error;
	}
//	if (state->type_flags & DST_TYPE_HAS_NEWTUNE) {
	if ((state->type_flags & DST_TYPE_HAS_VLF) &&
		(!(state->dst_type == DST_TYPE_IS_ATSC))) {

		state->tx_tuna[9] = dst_check_sum(&state->tx_tuna[0], 9);
		retval = write_dst(state, &state->tx_tuna[0], 10);
	} else {
		state->tx_tuna[9] = dst_check_sum(&state->tx_tuna[2], 7);
		retval = write_dst(state, &state->tx_tuna[2], FIXED_COMM);
	}
	if (retval < 0) {
		dst_pio_disable(state);
		dprintk(verbose, DST_DEBUG, 1, "write not successful");
		goto werr;
	}
	if ((dst_pio_disable(state)) < 0) {
		dprintk(verbose, DST_DEBUG, 1, "DST PIO disable failed !");
		goto error;
	}
	if ((read_dst(state, &reply, GET_ACK) < 0)) {
		dprintk(verbose, DST_DEBUG, 1, "read verify not successful.");
		goto error;
	}
	if (reply != ACK) {
		dprintk(verbose, DST_DEBUG, 1, "write not acknowledged 0x%02x ", reply);
		goto error;
	}
	state->diseq_flags |= ATTEMPT_TUNE;
	retval = dst_get_tuna(state);
werr:
	mutex_unlock(&state->dst_mutex);
	return retval;

error:
	mutex_unlock(&state->dst_mutex);
	return -EIO;
}

/*
 * line22k0    0x00, 0x09, 0x00, 0xff, 0x01, 0x00, 0x00, 0x00
 * line22k1    0x00, 0x09, 0x01, 0xff, 0x01, 0x00, 0x00, 0x00
 * line22k2    0x00, 0x09, 0x02, 0xff, 0x01, 0x00, 0x00, 0x00
 * tone        0x00, 0x09, 0xff, 0x00, 0x01, 0x00, 0x00, 0x00
 * data        0x00, 0x09, 0xff, 0x01, 0x01, 0x00, 0x00, 0x00
 * power_off   0x00, 0x09, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00
 * power_on    0x00, 0x09, 0xff, 0xff, 0x01, 0x00, 0x00, 0x00
 * Diseqc 1    0x00, 0x08, 0x04, 0xe0, 0x10, 0x38, 0xf0, 0xec
 * Diseqc 2    0x00, 0x08, 0x04, 0xe0, 0x10, 0x38, 0xf4, 0xe8
 * Diseqc 3    0x00, 0x08, 0x04, 0xe0, 0x10, 0x38, 0xf8, 0xe4
 * Diseqc 4    0x00, 0x08, 0x04, 0xe0, 0x10, 0x38, 0xfc, 0xe0
 */

static int dst_set_diseqc(struct dvb_frontend *fe, struct dvb_diseqc_master_cmd *cmd)
{
	struct dst_state *state = fe->demodulator_priv;
	u8 paket[8] = { 0x00, 0x08, 0x04, 0xe0, 0x10, 0x38, 0xf0, 0xec };

	if (state->dst_type != DST_TYPE_IS_SAT)
		return -EOPNOTSUPP;
	if (cmd->msg_len > 0 && cmd->msg_len < 5)
		memcpy(&paket[3], cmd->msg, cmd->msg_len);
	else if (cmd->msg_len == 5 && state->dst_hw_cap & DST_TYPE_HAS_DISEQC5)
		memcpy(&paket[2], cmd->msg, cmd->msg_len);
	else
		return -EINVAL;
	paket[7] = dst_check_sum(&paket[0], 7);
	return dst_command(state, paket, 8);
}

static int dst_set_voltage(struct dvb_frontend *fe, fe_sec_voltage_t voltage)
{
	int need_cmd, retval = 0;
	struct dst_state *state = fe->demodulator_priv;

	state->voltage = voltage;
	if (state->dst_type != DST_TYPE_IS_SAT)
		return -EOPNOTSUPP;

	need_cmd = 0;

	switch (voltage) {
	case SEC_VOLTAGE_13:
	case SEC_VOLTAGE_18:
		if ((state->diseq_flags & HAS_POWER) == 0)
			need_cmd = 1;
		state->diseq_flags |= HAS_POWER;
		state->tx_tuna[4] = 0x01;
		break;
	case SEC_VOLTAGE_OFF:
		need_cmd = 1;
		state->diseq_flags &= ~(HAS_POWER | HAS_LOCK | ATTEMPT_TUNE);
		state->tx_tuna[4] = 0x00;
		break;
	default:
		return -EINVAL;
	}

	if (need_cmd)
		retval = dst_tone_power_cmd(state);

	return retval;
}

static int dst_set_tone(struct dvb_frontend *fe, fe_sec_tone_mode_t tone)
{
	struct dst_state *state = fe->demodulator_priv;

	state->tone = tone;
	if (state->dst_type != DST_TYPE_IS_SAT)
		return -EOPNOTSUPP;

	switch (tone) {
	case SEC_TONE_OFF:
		if (state->type_flags & DST_TYPE_HAS_OBS_REGS)
		    state->tx_tuna[2] = 0x00;
		else
		    state->tx_tuna[2] = 0xff;
		break;

	case SEC_TONE_ON:
		state->tx_tuna[2] = 0x02;
		break;
	default:
		return -EINVAL;
	}
	return dst_tone_power_cmd(state);
}

static int dst_send_burst(struct dvb_frontend *fe, fe_sec_mini_cmd_t minicmd)
{
	struct dst_state *state = fe->demodulator_priv;

	if (state->dst_type != DST_TYPE_IS_SAT)
		return -EOPNOTSUPP;
	state->minicmd = minicmd;
	switch (minicmd) {
	case SEC_MINI_A:
		state->tx_tuna[3] = 0x02;
		break;
	case SEC_MINI_B:
		state->tx_tuna[3] = 0xff;
		break;
	}
	return dst_tone_power_cmd(state);
}


static int dst_init(struct dvb_frontend *fe)
{
	struct dst_state *state = fe->demodulator_priv;

	static u8 sat_tuna_188[] = { 0x09, 0x00, 0x03, 0xb6, 0x01, 0x00, 0x73, 0x21, 0x00, 0x00 };
	static u8 sat_tuna_204[] = { 0x00, 0x00, 0x03, 0xb6, 0x01, 0x55, 0xbd, 0x50, 0x00, 0x00 };
	static u8 ter_tuna_188[] = { 0x09, 0x00, 0x03, 0xb6, 0x01, 0x07, 0x00, 0x00, 0x00, 0x00 };
	static u8 ter_tuna_204[] = { 0x00, 0x00, 0x03, 0xb6, 0x01, 0x07, 0x00, 0x00, 0x00, 0x00 };
	static u8 cab_tuna_188[] = { 0x09, 0x00, 0x03, 0xb6, 0x01, 0x07, 0x00, 0x00, 0x00, 0x00 };
	static u8 cab_tuna_204[] = { 0x00, 0x00, 0x03, 0xb6, 0x01, 0x07, 0x00, 0x00, 0x00, 0x00 };
	static u8 atsc_tuner[] = { 0x00, 0x00, 0x03, 0xb6, 0x01, 0x07, 0x00, 0x00, 0x00, 0x00 };

	state->inversion = INVERSION_OFF;
	state->voltage = SEC_VOLTAGE_13;
	state->tone = SEC_TONE_OFF;
	state->diseq_flags = 0;
	state->k22 = 0x02;
	state->bandwidth = BANDWIDTH_7_MHZ;
	state->cur_jiff = jiffies;
	if (state->dst_type == DST_TYPE_IS_SAT)
		memcpy(state->tx_tuna, ((state->type_flags & DST_TYPE_HAS_VLF) ? sat_tuna_188 : sat_tuna_204), sizeof (sat_tuna_204));
	else if (state->dst_type == DST_TYPE_IS_TERR)
		memcpy(state->tx_tuna, ((state->type_flags & DST_TYPE_HAS_VLF) ? ter_tuna_188 : ter_tuna_204), sizeof (ter_tuna_204));
	else if (state->dst_type == DST_TYPE_IS_CABLE)
		memcpy(state->tx_tuna, ((state->type_flags & DST_TYPE_HAS_VLF) ? cab_tuna_188 : cab_tuna_204), sizeof (cab_tuna_204));
	else if (state->dst_type == DST_TYPE_IS_ATSC)
		memcpy(state->tx_tuna, atsc_tuner, sizeof (atsc_tuner));

	return 0;
}

static int dst_read_status(struct dvb_frontend *fe, fe_status_t *status)
{
	struct dst_state *state = fe->demodulator_priv;

	*status = 0;
	if (state->diseq_flags & HAS_LOCK) {
//		dst_get_signal(state);	// don't require(?) to ask MCU
		if (state->decode_lock)
			*status |= FE_HAS_LOCK | FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_SYNC | FE_HAS_VITERBI;
	}

	return 0;
}

static int dst_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
{
	struct dst_state *state = fe->demodulator_priv;

	int retval = dst_get_signal(state);
	*strength = state->decode_strength;

	return retval;
}

static int dst_read_snr(struct dvb_frontend *fe, u16 *snr)
{
	struct dst_state *state = fe->demodulator_priv;

	int retval = dst_get_signal(state);
	*snr = state->decode_snr;

	return retval;
}

static int dst_set_frontend(struct dvb_frontend *fe, struct dvb_frontend_parameters *p)
{
	int retval = -EINVAL;
	struct dst_state *state = fe->demodulator_priv;

	if (p != NULL) {
		retval = dst_set_freq(state, p->frequency);
		if(retval != 0)
			return retval;
		dprintk(verbose, DST_DEBUG, 1, "Set Frequency=[%d]", p->frequency);

		if (state->dst_type == DST_TYPE_IS_SAT) {
			if (state->type_flags & DST_TYPE_HAS_OBS_REGS)
				dst_set_inversion(state, p->inversion);
			dst_set_fec(state, p->u.qpsk.fec_inner);
			dst_set_symbolrate(state, p->u.qpsk.symbol_rate);
			dst_set_polarization(state);
			dprintk(verbose, DST_DEBUG, 1, "Set Symbolrate=[%d]", p->u.qpsk.symbol_rate);

		} else if (state->dst_type == DST_TYPE_IS_TERR)
			dst_set_bandwidth(state, p->u.ofdm.bandwidth);
		else if (state->dst_type == DST_TYPE_IS_CABLE) {
			dst_set_fec(state, p->u.qam.fec_inner);
			dst_set_symbolrate(state, p->u.qam.symbol_rate);
			dst_set_modulation(state, p->u.qam.modulation);
		}
		retval = dst_write_tuna(fe);
	}

	return retval;
}

static int dst_tune_frontend(struct dvb_frontend* fe,
			    struct dvb_frontend_parameters* p,
			    unsigned int mode_flags,
			    unsigned int *delay,
			    fe_status_t *status)
{
	struct dst_state *state = fe->demodulator_priv;

	if (p != NULL) {
		dst_set_freq(state, p->frequency);
		dprintk(verbose, DST_DEBUG, 1, "Set Frequency=[%d]", p->frequency);

		if (state->dst_type == DST_TYPE_IS_SAT) {
			if (state->type_flags & DST_TYPE_HAS_OBS_REGS)
				dst_set_inversion(state, p->inversion);
			dst_set_fec(state, p->u.qpsk.fec_inner);
			dst_set_symbolrate(state, p->u.qpsk.symbol_rate);
			dst_set_polarization(state);
			dprintk(verbose, DST_DEBUG, 1, "Set Symbolrate=[%d]", p->u.qpsk.symbol_rate);

		} else if (state->dst_type == DST_TYPE_IS_TERR)
			dst_set_bandwidth(state, p->u.ofdm.bandwidth);
		else if (state->dst_type == DST_TYPE_IS_CABLE) {
			dst_set_fec(state, p->u.qam.fec_inner);
			dst_set_symbolrate(state, p->u.qam.symbol_rate);
			dst_set_modulation(state, p->u.qam.modulation);
		}
		dst_write_tuna(fe);
	}

	if (!(mode_flags & FE_TUNE_MODE_ONESHOT))
		dst_read_status(fe, status);

	*delay = HZ/10;
	return 0;
}

static int dst_get_tuning_algo(struct dvb_frontend *fe)
{
	return dst_algo;
}

static int dst_get_frontend(struct dvb_frontend *fe, struct dvb_frontend_parameters *p)
{
	struct dst_state *state = fe->demodulator_priv;

	p->frequency = state->decode_freq;
	if (state->dst_type == DST_TYPE_IS_SAT) {
		if (state->type_flags & DST_TYPE_HAS_OBS_REGS)
			p->inversion = state->inversion;
		p->u.qpsk.symbol_rate = state->symbol_rate;
		p->u.qpsk.fec_inner = dst_get_fec(state);
	} else if (state->dst_type == DST_TYPE_IS_TERR) {
		p->u.ofdm.bandwidth = state->bandwidth;
	} else if (state->dst_type == DST_TYPE_IS_CABLE) {
		p->u.qam.symbol_rate = state->symbol_rate;
		p->u.qam.fec_inner = dst_get_fec(state);
		p->u.qam.modulation = dst_get_modulation(state);
	}

	return 0;
}

static void dst_release(struct dvb_frontend *fe)
{
	struct dst_state *state = fe->demodulator_priv;
	if (state->dst_ca) {
		dvb_unregister_device(state->dst_ca);
#ifdef CONFIG_MEDIA_ATTACH
		symbol_put(dst_ca_attach);
#endif
	}
	kfree(state);
}

static struct dvb_frontend_ops dst_dvbt_ops;
static struct dvb_frontend_ops dst_dvbs_ops;
static struct dvb_frontend_ops dst_dvbc_ops;
static struct dvb_frontend_ops dst_atsc_ops;

struct dst_state *dst_attach(struct dst_state *state, struct dvb_adapter *dvb_adapter)
{
	/* check if the ASIC is there */
	if (dst_probe(state) < 0) {
		kfree(state);
		return NULL;
	}
	/* determine settings based on type */
	/* create dvb_frontend */
	switch (state->dst_type) {
	case DST_TYPE_IS_TERR:
		memcpy(&state->frontend.ops, &dst_dvbt_ops, sizeof(struct dvb_frontend_ops));
		break;
	case DST_TYPE_IS_CABLE:
		memcpy(&state->frontend.ops, &dst_dvbc_ops, sizeof(struct dvb_frontend_ops));
		break;
	case DST_TYPE_IS_SAT:
		memcpy(&state->frontend.ops, &dst_dvbs_ops, sizeof(struct dvb_frontend_ops));
		break;
	case DST_TYPE_IS_ATSC:
		memcpy(&state->frontend.ops, &dst_atsc_ops, sizeof(struct dvb_frontend_ops));
		break;
	default:
		dprintk(verbose, DST_ERROR, 1, "unknown DST type. please report to the LinuxTV.org DVB mailinglist.");
		kfree(state);
		return NULL;
	}
	state->frontend.demodulator_priv = state;

	return state;				/*	Manu (DST is a card not a frontend)	*/
}

EXPORT_SYMBOL(dst_attach);

static struct dvb_frontend_ops dst_dvbt_ops = {

	.info = {
		.name = "DST DVB-T",
		.type = FE_OFDM,
		.frequency_min = 137000000,
		.frequency_max = 858000000,
		.frequency_stepsize = 166667,
		.caps = FE_CAN_FEC_AUTO | FE_CAN_QAM_AUTO | FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_GUARD_INTERVAL_AUTO
	},

	.release = dst_release,
	.init = dst_init,
	.tune = dst_tune_frontend,
	.set_frontend = dst_set_frontend,
	.get_frontend = dst_get_frontend,
	.get_frontend_algo = dst_get_tuning_algo,
	.read_status = dst_read_status,
	.read_signal_strength = dst_read_signal_strength,
	.read_snr = dst_read_snr,
};

static struct dvb_frontend_ops dst_dvbs_ops = {

	.info = {
		.name = "DST DVB-S",
		.type = FE_QPSK,
		.frequency_min = 950000,
		.frequency_max = 2150000,
		.frequency_stepsize = 1000,	/* kHz for QPSK frontends */
		.frequency_tolerance = 29500,
		.symbol_rate_min = 1000000,
		.symbol_rate_max = 45000000,
	/*     . symbol_rate_tolerance	=	???,*/
		.caps = FE_CAN_FEC_AUTO | FE_CAN_QPSK
	},

	.release = dst_release,
	.init = dst_init,
	.tune = dst_tune_frontend,
	.set_frontend = dst_set_frontend,
	.get_frontend = dst_get_frontend,
	.get_frontend_algo = dst_get_tuning_algo,
	.read_status = dst_read_status,
	.read_signal_strength = dst_read_signal_strength,
	.read_snr = dst_read_snr,
	.diseqc_send_burst = dst_send_burst,
	.diseqc_send_master_cmd = dst_set_diseqc,
	.set_voltage = dst_set_voltage,
	.set_tone = dst_set_tone,
};

static struct dvb_frontend_ops dst_dvbc_ops = {

	.info = {
		.name = "DST DVB-C",
		.type = FE_QAM,
		.frequency_stepsize = 62500,
		.frequency_min = 51000000,
		.frequency_max = 858000000,
		.symbol_rate_min = 1000000,
		.symbol_rate_max = 45000000,
	/*     . symbol_rate_tolerance	=	???,*/
		.caps = FE_CAN_FEC_AUTO | FE_CAN_QAM_AUTO
	},

	.release = dst_release,
	.init = dst_init,
	.tune = dst_tune_frontend,
	.set_frontend = dst_set_frontend,
	.get_frontend = dst_get_frontend,
	.get_frontend_algo = dst_get_tuning_algo,
	.read_status = dst_read_status,
	.read_signal_strength = dst_read_signal_strength,
	.read_snr = dst_read_snr,
};

static struct dvb_frontend_ops dst_atsc_ops = {
	.info = {
		.name = "DST ATSC",
		.type = FE_ATSC,
		.frequency_stepsize = 62500,
		.frequency_min = 510000000,
		.frequency_max = 858000000,
		.symbol_rate_min = 1000000,
		.symbol_rate_max = 45000000,
		.caps = FE_CAN_FEC_AUTO | FE_CAN_QAM_AUTO | FE_CAN_QAM_64 | FE_CAN_QAM_256 | FE_CAN_8VSB
	},

	.release = dst_release,
	.init = dst_init,
	.tune = dst_tune_frontend,
	.set_frontend = dst_set_frontend,
	.get_frontend = dst_get_frontend,
	.get_frontend_algo = dst_get_tuning_algo,
	.read_status = dst_read_status,
	.read_signal_strength = dst_read_signal_strength,
	.read_snr = dst_read_snr,
};

MODULE_DESCRIPTION("DST DVB-S/T/C/ATSC Combo Frontend driver");
MODULE_AUTHOR("Jamie Honan, Manu Abraham");
MODULE_LICENSE("GPL");