1 // SPDX-License-Identifier: GPL-2.0-only
2 /* Common methods for dibusb-based-receivers.
3  *
4  * Copyright (C) 2004-5 Patrick Boettcher (patrick.boettcher@desy.de)
5  *
6  * see Documentation/driver-api/media/drivers/dvb-usb.rst for more information
7  */
8 
9 #include "dibusb.h"
10 
11 MODULE_LICENSE("GPL");
12 
13 /* 3000MC/P stuff */
14 // Config Adjacent channels  Perf -cal22
15 static struct dibx000_agc_config dib3000p_mt2060_agc_config = {
16 	.band_caps = BAND_VHF | BAND_UHF,
17 	.setup     = (1 << 8) | (5 << 5) | (1 << 4) | (1 << 3) | (0 << 2) | (2 << 0),
18 
19 	.agc1_max = 48497,
20 	.agc1_min = 23593,
21 	.agc2_max = 46531,
22 	.agc2_min = 24904,
23 
24 	.agc1_pt1 = 0x65,
25 	.agc1_pt2 = 0x69,
26 
27 	.agc1_slope1 = 0x51,
28 	.agc1_slope2 = 0x27,
29 
30 	.agc2_pt1 = 0,
31 	.agc2_pt2 = 0x33,
32 
33 	.agc2_slope1 = 0x35,
34 	.agc2_slope2 = 0x37,
35 };
36 
37 static struct dib3000mc_config stk3000p_dib3000p_config = {
38 	&dib3000p_mt2060_agc_config,
39 
40 	.max_time     = 0x196,
41 	.ln_adc_level = 0x1cc7,
42 
43 	.output_mpeg2_in_188_bytes = 1,
44 
45 	.agc_command1 = 1,
46 	.agc_command2 = 1,
47 };
48 
49 static struct dibx000_agc_config dib3000p_panasonic_agc_config = {
50 	.band_caps = BAND_VHF | BAND_UHF,
51 	.setup     = (1 << 8) | (5 << 5) | (1 << 4) | (1 << 3) | (0 << 2) | (2 << 0),
52 
53 	.agc1_max = 56361,
54 	.agc1_min = 22282,
55 	.agc2_max = 47841,
56 	.agc2_min = 36045,
57 
58 	.agc1_pt1 = 0x3b,
59 	.agc1_pt2 = 0x6b,
60 
61 	.agc1_slope1 = 0x55,
62 	.agc1_slope2 = 0x1d,
63 
64 	.agc2_pt1 = 0,
65 	.agc2_pt2 = 0x0a,
66 
67 	.agc2_slope1 = 0x95,
68 	.agc2_slope2 = 0x1e,
69 };
70 
71 static struct dib3000mc_config mod3000p_dib3000p_config = {
72 	&dib3000p_panasonic_agc_config,
73 
74 	.max_time     = 0x51,
75 	.ln_adc_level = 0x1cc7,
76 
77 	.output_mpeg2_in_188_bytes = 1,
78 
79 	.agc_command1 = 1,
80 	.agc_command2 = 1,
81 };
82 
dibusb_dib3000mc_frontend_attach(struct dvb_usb_adapter * adap)83 int dibusb_dib3000mc_frontend_attach(struct dvb_usb_adapter *adap)
84 {
85 	if (le16_to_cpu(adap->dev->udev->descriptor.idVendor) == USB_VID_LITEON &&
86 	    le16_to_cpu(adap->dev->udev->descriptor.idProduct) ==
87 			USB_PID_LITEON_DVB_T_WARM) {
88 		msleep(1000);
89 	}
90 
91 	adap->fe_adap[0].fe = dvb_attach(dib3000mc_attach,
92 					 &adap->dev->i2c_adap,
93 					 DEFAULT_DIB3000P_I2C_ADDRESS,
94 					 &mod3000p_dib3000p_config);
95 	if ((adap->fe_adap[0].fe) == NULL)
96 		adap->fe_adap[0].fe = dvb_attach(dib3000mc_attach,
97 						 &adap->dev->i2c_adap,
98 						 DEFAULT_DIB3000MC_I2C_ADDRESS,
99 						 &mod3000p_dib3000p_config);
100 	if ((adap->fe_adap[0].fe) != NULL) {
101 		if (adap->priv != NULL) {
102 			struct dibusb_state *st = adap->priv;
103 			st->ops.pid_parse = dib3000mc_pid_parse;
104 			st->ops.pid_ctrl  = dib3000mc_pid_control;
105 		}
106 		return 0;
107 	}
108 	return -ENODEV;
109 }
110 EXPORT_SYMBOL(dibusb_dib3000mc_frontend_attach);
111 
112 static struct mt2060_config stk3000p_mt2060_config = {
113 	0x60
114 };
115 
dibusb_dib3000mc_tuner_attach(struct dvb_usb_adapter * adap)116 int dibusb_dib3000mc_tuner_attach(struct dvb_usb_adapter *adap)
117 {
118 	struct dibusb_state *st = adap->priv;
119 	u8 a,b;
120 	u16 if1 = 1220;
121 	struct i2c_adapter *tun_i2c;
122 
123 	// First IF calibration for Liteon Sticks
124 	if (le16_to_cpu(adap->dev->udev->descriptor.idVendor) == USB_VID_LITEON &&
125 	    le16_to_cpu(adap->dev->udev->descriptor.idProduct) == USB_PID_LITEON_DVB_T_WARM) {
126 
127 		dibusb_read_eeprom_byte(adap->dev,0x7E,&a);
128 		dibusb_read_eeprom_byte(adap->dev,0x7F,&b);
129 
130 		if (a == 0x00)
131 			if1 += b;
132 		else if (a == 0x80)
133 			if1 -= b;
134 		else
135 			warn("LITE-ON DVB-T: Strange IF1 calibration :%2X %2X\n", a, b);
136 
137 	} else if (le16_to_cpu(adap->dev->udev->descriptor.idVendor) == USB_VID_DIBCOM &&
138 		   le16_to_cpu(adap->dev->udev->descriptor.idProduct) == USB_PID_DIBCOM_MOD3001_WARM) {
139 		u8 desc;
140 		dibusb_read_eeprom_byte(adap->dev, 7, &desc);
141 		if (desc == 2) {
142 			a = 127;
143 			do {
144 				dibusb_read_eeprom_byte(adap->dev, a, &desc);
145 				a--;
146 			} while (a > 7 && (desc == 0xff || desc == 0x00));
147 			if (desc & 0x80)
148 				if1 -= (0xff - desc);
149 			else
150 				if1 += desc;
151 		}
152 	}
153 
154 	tun_i2c = dib3000mc_get_tuner_i2c_master(adap->fe_adap[0].fe, 1);
155 	if (dvb_attach(mt2060_attach, adap->fe_adap[0].fe, tun_i2c, &stk3000p_mt2060_config, if1) == NULL) {
156 		/* not found - use panasonic pll parameters */
157 		if (dvb_attach(dvb_pll_attach, adap->fe_adap[0].fe, 0x60, tun_i2c, DVB_PLL_ENV57H1XD5) == NULL)
158 			return -ENOMEM;
159 	} else {
160 		st->mt2060_present = 1;
161 		/* set the correct parameters for the dib3000p */
162 		dib3000mc_set_config(adap->fe_adap[0].fe, &stk3000p_dib3000p_config);
163 	}
164 	return 0;
165 }
166 EXPORT_SYMBOL(dibusb_dib3000mc_tuner_attach);
167