[media] mn88473: add support for DVB-T2 (c00a6b9f) · Commits · 戴 / test

drivers/media/dvb-frontends/mn88473.c

+38 −7

Original line number	Diff line number	Diff line
		@@ -116,19 +116,38 @@ static int mn88473_set_frontend(struct dvb_frontend *fe)
		{
		struct mn88473_dev *dev = fe->demodulator_priv;
		struct dtv_frontend_properties *c = &fe->dtv_property_cache;
		int ret;
		int ret, i;
		u32 if_frequency = 0;
		u8 params[10], delivery_system;

		dev_dbg(&dev->i2c->dev,
		"%s: delivery_system=%d modulation=%d frequency=%d symbol_rate=%d inversion=%d\n",
		"%s: delivery_system=%u modulation=%u frequency=%u bandwidth_hz=%u symbol_rate=%u inversion=%d stream_id=%d\n",
		__func__, c->delivery_system, c->modulation,
		c->frequency, c->symbol_rate, c->inversion);
		c->frequency, c->bandwidth_hz, c->symbol_rate,
		c->inversion, c->stream_id);

		if (!dev->warm) {
		ret = -EAGAIN;
		goto err;
		}

		switch (c->delivery_system) {
		case SYS_DVBT2:
		delivery_system = 0x03;
		if (c->bandwidth_hz <= 7000000)
		memcpy(params, "\x2e\xcb\xfb\xc8\x00\x00\x17\x0a\x17\x0a", 10);
		else if (c->bandwidth_hz <= 8000000)
		memcpy(params, "\x2e\xcb\xfb\xaf\x00\x00\x11\xec\x11\xec", 10);
		break;
		case SYS_DVBC_ANNEX_A:
		delivery_system = 0x04;
		memcpy(params, "\x33\xea\xb3\xaf\x00\x00\x11\xec\x11\xec", 10);
		break;
		default:
		ret = -EINVAL;
		goto err;
		}

		/* program tuner */
		if (fe->ops.tuner_ops.set_params) {
		ret = fe->ops.tuner_ops.set_params(fe);
		@@ -145,7 +164,11 @@ static int mn88473_set_frontend(struct dvb_frontend *fe)
		__func__, if_frequency);
		}

		if (if_frequency != 5070000) {
		switch (if_frequency) {
		case 4570000:
		case 5070000:
		break;
		default:
		dev_err(&dev->i2c->dev, "%s: IF frequency %d not supported\n",
		KBUILD_MODNAME, if_frequency);
		ret = -EINVAL;
		@@ -159,9 +182,15 @@ static int mn88473_set_frontend(struct dvb_frontend *fe)
		ret = mn88473_wregs(dev, 0x1c00, "\x18", 1);
		ret = mn88473_wregs(dev, 0x1c01, "\x01", 1);
		ret = mn88473_wregs(dev, 0x1c02, "\x21", 1);
		ret = mn88473_wregs(dev, 0x1c03, "\x04", 1);
		ret = mn88473_wreg(dev, 0x1c03, delivery_system);
		ret = mn88473_wregs(dev, 0x1c0b, "\x00", 1);
		ret = mn88473_wregs(dev, 0x1c10, "\x33\xea\xb3\xaf\x00\x00\x11\xec\x11\xec", 10);

		for (i = 0; i < 10; i++) {
		ret = mn88473_wreg(dev, 0x1c10 + i, params[i]);
		if (ret)
		goto err;
		}

		ret = mn88473_wregs(dev, 0x1c2d, "\x3b", 1);
		ret = mn88473_wregs(dev, 0x1c2e, "\x00", 1);
		ret = mn88473_wregs(dev, 0x1c56, "\x0d", 1);
		@@ -193,6 +222,8 @@ static int mn88473_set_frontend(struct dvb_frontend *fe)
		ret = mn88473_wregs(dev, 0x1c08, "\x1d", 1);
		ret = mn88473_wregs(dev, 0x18b2, "\x37", 1);
		ret = mn88473_wregs(dev, 0x18d7, "\x04", 1);
		ret = mn88473_wregs(dev, 0x1c32, "\x80", 1);
		ret = mn88473_wregs(dev, 0x1c36, "\x00", 1);
		ret = mn88473_wregs(dev, 0x1cf8, "\x9f", 1);
		if (ret)
		goto err;
		@@ -351,7 +382,7 @@ err:
		EXPORT_SYMBOL(mn88473_attach);

		static struct dvb_frontend_ops mn88473_ops = {
		.delsys = {SYS_DVBC_ANNEX_AC},
		.delsys = {SYS_DVBT2, SYS_DVBC_ANNEX_AC},
		.info = {
		.name = "Panasonic MN88473",
		.caps = FE_CAN_FEC_1_2 \|

Admin message