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2024-01-03 2f7c68cb55ecb7331f2381deb497c27155f32faf 
 kernel/drivers/media/usb/dvb-usb-v2/af9035.c
....@@ -1,22 +1,9 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
12 /*
23  * Afatech AF9035 DVB USB driver
34  *
45  * Copyright (C) 2009 Antti Palosaari <crope@iki.fi>
56  * Copyright (C) 2012 Antti Palosaari <crope@iki.fi>
6
- *
7
- *    This program is free software; you can redistribute it and/or modify
8
- *    it under the terms of the GNU General Public License as published by
9
- *    the Free Software Foundation; either version 2 of the License, or
10
- *    (at your option) any later version.
11
- *
12
- *    This program is distributed in the hope that it will be useful,
13
- *    but WITHOUT ANY WARRANTY; without even the implied warranty of
14
- *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15
- *    GNU General Public License for more details.
16
- *
17
- *    You should have received a copy of the GNU General Public License along
18
- *    with this program; if not, write to the Free Software Foundation, Inc.,
19
- *    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
207  */
218 
229 #include "af9035.h"
....@@ -120,8 +107,6 @@
120107 		memcpy(req->rbuf, &state->buf[ACK_HDR_LEN], req->rlen);
121108 exit:
122109 	mutex_unlock(&d->usb_mutex);
123
-	if (ret < 0)
124
-		dev_dbg(&intf->dev, "failed=%d\n", ret);
125110 	return ret;
126111 }
127112 
....@@ -204,7 +189,7 @@
204189 		.platform_data = platform_data,
205190 	};
206191 
207
-	strlcpy(board_info.type, type, I2C_NAME_SIZE);
192
+	strscpy(board_info.type, type, I2C_NAME_SIZE);
208193 
209194 	/* find first free client */
210195 	for (num = 0; num < AF9035_I2C_CLIENT_MAX; num++) {
....@@ -223,8 +208,8 @@
223208 	request_module("%s", board_info.type);
224209 
225210 	/* register I2C device */
226
-	client = i2c_new_device(adapter, &board_info);
227
-	if (client == NULL || client->dev.driver == NULL) {
211
+	client = i2c_new_client_device(adapter, &board_info);
212
+	if (!i2c_client_has_driver(client)) {
228213 		ret = -ENODEV;
229214 		goto err;
230215 	}
....@@ -284,6 +269,7 @@
284269 	struct dvb_usb_device *d = i2c_get_adapdata(adap);
285270 	struct state *state = d_to_priv(d);
286271 	int ret;
272
+	u32 reg;
287273 
288274 	if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
289275 		return -EAGAIN;
....@@ -336,8 +322,10 @@
336322 			ret = -EOPNOTSUPP;
337323 		} else if ((msg[0].addr == state->af9033_i2c_addr[0]) ||
338324 			   (msg[0].addr == state->af9033_i2c_addr[1])) {
325
+			if (msg[0].len < 3 || msg[1].len < 1)
326
+				return -EOPNOTSUPP;
339327 			/* demod access via firmware interface */
340
-			u32 reg = msg[0].buf[0] << 16 | msg[0].buf[1] << 8 |
328
+			reg = msg[0].buf[0] << 16 | msg[0].buf[1] << 8 |
341329 					msg[0].buf[2];
342330 
343331 			if (msg[0].addr == state->af9033_i2c_addr[1])
....@@ -395,17 +383,16 @@
395383 			ret = -EOPNOTSUPP;
396384 		} else if ((msg[0].addr == state->af9033_i2c_addr[0]) ||
397385 			   (msg[0].addr == state->af9033_i2c_addr[1])) {
386
+			if (msg[0].len < 3)
387
+				return -EOPNOTSUPP;
398388 			/* demod access via firmware interface */
399
-			u32 reg = msg[0].buf[0] << 16 | msg[0].buf[1] << 8 |
389
+			reg = msg[0].buf[0] << 16 | msg[0].buf[1] << 8 |
400390 					msg[0].buf[2];
401391 
402392 			if (msg[0].addr == state->af9033_i2c_addr[1])
403393 				reg |= 0x100000;
404394 
405
-			ret = (msg[0].len >= 3) ? af9035_wr_regs(d, reg,
406
-							         &msg[0].buf[3],
407
-							         msg[0].len - 3)
408
-					        : -EOPNOTSUPP;
395
+			ret = af9035_wr_regs(d, reg, &msg[0].buf[3], msg[0].len - 3);
409396 		} else {
410397 			/* I2C write */
411398 			u8 buf[MAX_XFER_SIZE];
....@@ -846,6 +833,7 @@
846833 	state->af9033_config[1].adc_multiplier = AF9033_ADC_MULTIPLIER_2X;
847834 	state->af9033_config[0].ts_mode = AF9033_TS_MODE_USB;
848835 	state->af9033_config[1].ts_mode = AF9033_TS_MODE_SERIAL;
836
+	state->it930x_addresses = 0;
849837 
850838 	if (state->chip_type == 0x9135) {
851839 		/* feed clock for integrated RF tuner */
....@@ -872,6 +860,10 @@
872860 		 * IT930x is an USB bridge, only single demod-single tuner
873861 		 * configurations seen so far.
874862 		 */
863
+		if ((le16_to_cpu(d->udev->descriptor.idVendor) == USB_VID_AVERMEDIA) &&
864
+		    (le16_to_cpu(d->udev->descriptor.idProduct) == USB_PID_AVERMEDIA_TD310)) {
865
+			state->it930x_addresses = 1;
866
+		}
875867 		return 0;
876868 	}
877869 
....@@ -1207,6 +1199,15 @@
12071199 	return ret;
12081200 }
12091201 
1202
+/*
1203
+ * The I2C speed register is calculated with:
1204
+ *	I2C speed register = (1000000000 / (24.4 * 16 * I2C_speed))
1205
+ *
1206
+ * The default speed register for it930x is 7, with means a
1207
+ * speed of ~366 kbps
1208
+ */
1209
+#define I2C_SPEED_366K 7
1210
+
12101211 static int it930x_frontend_attach(struct dvb_usb_adapter *adap)
12111212 {
12121213 	struct state *state = adap_to_priv(adap);
....@@ -1218,6 +1219,48 @@
12181219 
12191220 	dev_dbg(&intf->dev, "adap->id=%d\n", adap->id);
12201221 
1222
+	/* I2C master bus 2 clock speed 366k */
1223
+	ret = af9035_wr_reg(d, 0x00f6a7, I2C_SPEED_366K);
1224
+	if (ret < 0)
1225
+		goto err;
1226
+
1227
+	/* I2C master bus 1,3 clock speed 366k */
1228
+	ret = af9035_wr_reg(d, 0x00f103, I2C_SPEED_366K);
1229
+	if (ret < 0)
1230
+		goto err;
1231
+
1232
+	/* set gpio11 low */
1233
+	ret = af9035_wr_reg_mask(d, 0xd8d4, 0x01, 0x01);
1234
+	if (ret < 0)
1235
+		goto err;
1236
+
1237
+	ret = af9035_wr_reg_mask(d, 0xd8d5, 0x01, 0x01);
1238
+	if (ret < 0)
1239
+		goto err;
1240
+
1241
+	ret = af9035_wr_reg_mask(d, 0xd8d3, 0x01, 0x01);
1242
+	if (ret < 0)
1243
+		goto err;
1244
+
1245
+	/* Tuner enable using gpiot2_en, gpiot2_on and gpiot2_o (reset) */
1246
+	ret = af9035_wr_reg_mask(d, 0xd8b8, 0x01, 0x01);
1247
+	if (ret < 0)
1248
+		goto err;
1249
+
1250
+	ret = af9035_wr_reg_mask(d, 0xd8b9, 0x01, 0x01);
1251
+	if (ret < 0)
1252
+		goto err;
1253
+
1254
+	ret = af9035_wr_reg_mask(d, 0xd8b7, 0x00, 0x01);
1255
+	if (ret < 0)
1256
+		goto err;
1257
+
1258
+	msleep(200);
1259
+
1260
+	ret = af9035_wr_reg_mask(d, 0xd8b7, 0x01, 0x01);
1261
+	if (ret < 0)
1262
+		goto err;
1263
+
12211264 	memset(&si2168_config, 0, sizeof(si2168_config));
12221265 	si2168_config.i2c_adapter = &adapter;
12231266 	si2168_config.fe = &adap->fe[0];
....@@ -1225,8 +1268,9 @@
12251268 
12261269 	state->af9033_config[adap->id].fe = &adap->fe[0];
12271270 	state->af9033_config[adap->id].ops = &state->ops;
1228
-	ret = af9035_add_i2c_dev(d, "si2168", 0x67, &si2168_config,
1229
-				&d->i2c_adap);
1271
+	ret = af9035_add_i2c_dev(d, "si2168",
1272
+				 it930x_addresses_table[state->it930x_addresses].frontend_i2c_addr,
1273
+				 &si2168_config, &d->i2c_adap);
12301274 	if (ret)
12311275 		goto err;
12321276 
....@@ -1575,54 +1619,33 @@
15751619 
15761620 	dev_dbg(&intf->dev, "adap->id=%d\n", adap->id);
15771621 
1578
-	/* I2C master bus 2 clock speed 300k */
1579
-	ret = af9035_wr_reg(d, 0x00f6a7, 0x07);
1580
-	if (ret < 0)
1581
-		goto err;
1582
-
1583
-	/* I2C master bus 1,3 clock speed 300k */
1584
-	ret = af9035_wr_reg(d, 0x00f103, 0x07);
1585
-	if (ret < 0)
1586
-		goto err;
1587
-
1588
-	/* set gpio11 low */
1589
-	ret = af9035_wr_reg_mask(d, 0xd8d4, 0x01, 0x01);
1590
-	if (ret < 0)
1591
-		goto err;
1592
-
1593
-	ret = af9035_wr_reg_mask(d, 0xd8d5, 0x01, 0x01);
1594
-	if (ret < 0)
1595
-		goto err;
1596
-
1597
-	ret = af9035_wr_reg_mask(d, 0xd8d3, 0x01, 0x01);
1598
-	if (ret < 0)
1599
-		goto err;
1600
-
1601
-	/* Tuner enable using gpiot2_en, gpiot2_on and gpiot2_o (reset) */
1602
-	ret = af9035_wr_reg_mask(d, 0xd8b8, 0x01, 0x01);
1603
-	if (ret < 0)
1604
-		goto err;
1605
-
1606
-	ret = af9035_wr_reg_mask(d, 0xd8b9, 0x01, 0x01);
1607
-	if (ret < 0)
1608
-		goto err;
1609
-
1610
-	ret = af9035_wr_reg_mask(d, 0xd8b7, 0x00, 0x01);
1611
-	if (ret < 0)
1612
-		goto err;
1613
-
1614
-	msleep(200);
1615
-
1616
-	ret = af9035_wr_reg_mask(d, 0xd8b7, 0x01, 0x01);
1617
-	if (ret < 0)
1618
-		goto err;
1619
-
16201622 	memset(&si2157_config, 0, sizeof(si2157_config));
16211623 	si2157_config.fe = adap->fe[0];
1622
-	si2157_config.if_port = 1;
1623
-	ret = af9035_add_i2c_dev(d, "si2157", 0x63,
1624
-			&si2157_config, state->i2c_adapter_demod);
16251624 
1625
+	/*
1626
+	 * HACK: The Logilink VG0022A and TerraTec TC2 Stick have
1627
+	 * a bug: when the si2157 firmware that came with the device
1628
+	 * is replaced by a new one, the I2C transfers to the tuner
1629
+	 * will return just 0xff.
1630
+	 *
1631
+	 * Probably, the vendor firmware has some patch specifically
1632
+	 * designed for this device. So, we can't replace by the
1633
+	 * generic firmware. The right solution would be to extract
1634
+	 * the si2157 firmware from the original driver and ask the
1635
+	 * driver to load the specifically designed firmware, but,
1636
+	 * while we don't have that, the next best solution is to just
1637
+	 * keep the original firmware at the device.
1638
+	 */
1639
+	if ((le16_to_cpu(d->udev->descriptor.idVendor) == USB_VID_DEXATEK &&
1640
+	     le16_to_cpu(d->udev->descriptor.idProduct) == 0x0100) ||
1641
+	    (le16_to_cpu(d->udev->descriptor.idVendor) == USB_VID_TERRATEC &&
1642
+	     le16_to_cpu(d->udev->descriptor.idProduct) == USB_PID_TERRATEC_CINERGY_TC2_STICK))
1643
+		si2157_config.dont_load_firmware = true;
1644
+
1645
+	si2157_config.if_port = it930x_addresses_table[state->it930x_addresses].tuner_if_port;
1646
+	ret = af9035_add_i2c_dev(d, "si2157",
1647
+				 it930x_addresses_table[state->it930x_addresses].tuner_i2c_addr,
1648
+				 &si2157_config, state->i2c_adapter_demod);
16261649 	if (ret)
16271650 		goto err;
16281651 
....@@ -2128,6 +2151,12 @@
21282151 	/* IT930x devices */
21292152 	{ DVB_USB_DEVICE(USB_VID_ITETECH, USB_PID_ITETECH_IT9303,
21302153 		&it930x_props, "ITE 9303 Generic", NULL) },
2154
+	{ DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_TD310,
2155
+		&it930x_props, "AVerMedia TD310 DVB-T2", NULL) },
2156
+	{ DVB_USB_DEVICE(USB_VID_DEXATEK, 0x0100,
2157
+		&it930x_props, "Logilink VG0022A", NULL) },
2158
+	{ DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_TERRATEC_CINERGY_TC2_STICK,
2159
+		&it930x_props, "TerraTec Cinergy TC2 Stick", NULL) },
21312160 	{ }
21322161 };
21332162 MODULE_DEVICE_TABLE(usb, af9035_id_table);