1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * c8sectpfe-dvb.c - C8SECTPFE STi DVB driver
4 *
5 * Copyright (c) STMicroelectronics 2015
6 *
7 * Author Peter Griffin <peter.griffin@linaro.org>
8 *
9 */
10 #include <linux/completion.h>
11 #include <linux/delay.h>
12 #include <linux/i2c.h>
13 #include <linux/interrupt.h>
14 #include <linux/version.h>
15
16 #include <dt-bindings/media/c8sectpfe.h>
17
18 #include "c8sectpfe-common.h"
19 #include "c8sectpfe-core.h"
20 #include "c8sectpfe-dvb.h"
21
22 #include "dvb-pll.h"
23 #include "lnbh24.h"
24 #include "stv0367.h"
25 #include "stv0367_priv.h"
26 #include "stv6110x.h"
27 #include "stv090x.h"
28 #include "tda18212.h"
29
dvb_card_str(unsigned int c)30 static inline const char *dvb_card_str(unsigned int c)
31 {
32 switch (c) {
33 case STV0367_TDA18212_NIMA_1: return "STV0367_TDA18212_NIMA_1";
34 case STV0367_TDA18212_NIMA_2: return "STV0367_TDA18212_NIMA_2";
35 case STV0367_TDA18212_NIMB_1: return "STV0367_TDA18212_NIMB_1";
36 case STV0367_TDA18212_NIMB_2: return "STV0367_TDA18212_NIMB_2";
37 case STV0903_6110_LNB24_NIMA: return "STV0903_6110_LNB24_NIMA";
38 case STV0903_6110_LNB24_NIMB: return "STV0903_6110_LNB24_NIMB";
39 default: return "unknown dvb frontend card";
40 }
41 }
42
43 static struct stv090x_config stv090x_config = {
44 .device = STV0903,
45 .demod_mode = STV090x_SINGLE,
46 .clk_mode = STV090x_CLK_EXT,
47 .xtal = 16000000,
48 .address = 0x69,
49
50 .ts1_mode = STV090x_TSMODE_SERIAL_CONTINUOUS,
51 .ts2_mode = STV090x_TSMODE_SERIAL_CONTINUOUS,
52
53 .repeater_level = STV090x_RPTLEVEL_64,
54
55 .tuner_init = NULL,
56 .tuner_set_mode = NULL,
57 .tuner_set_frequency = NULL,
58 .tuner_get_frequency = NULL,
59 .tuner_set_bandwidth = NULL,
60 .tuner_get_bandwidth = NULL,
61 .tuner_set_bbgain = NULL,
62 .tuner_get_bbgain = NULL,
63 .tuner_set_refclk = NULL,
64 .tuner_get_status = NULL,
65 };
66
67 static struct stv6110x_config stv6110x_config = {
68 .addr = 0x60,
69 .refclk = 16000000,
70 };
71
72 #define NIMA 0
73 #define NIMB 1
74
75 static struct stv0367_config stv0367_tda18212_config[] = {
76 {
77 .demod_address = 0x1c,
78 .xtal = 16000000,
79 .if_khz = 4500,
80 .if_iq_mode = FE_TER_NORMAL_IF_TUNER,
81 .ts_mode = STV0367_SERIAL_PUNCT_CLOCK,
82 .clk_pol = STV0367_CLOCKPOLARITY_DEFAULT,
83 }, {
84 .demod_address = 0x1d,
85 .xtal = 16000000,
86 .if_khz = 4500,
87 .if_iq_mode = FE_TER_NORMAL_IF_TUNER,
88 .ts_mode = STV0367_SERIAL_PUNCT_CLOCK,
89 .clk_pol = STV0367_CLOCKPOLARITY_DEFAULT,
90 }, {
91 .demod_address = 0x1e,
92 .xtal = 16000000,
93 .if_khz = 4500,
94 .if_iq_mode = FE_TER_NORMAL_IF_TUNER,
95 .ts_mode = STV0367_SERIAL_PUNCT_CLOCK,
96 .clk_pol = STV0367_CLOCKPOLARITY_DEFAULT,
97 },
98 };
99
100 static struct tda18212_config tda18212_conf = {
101 .if_dvbt_6 = 4150,
102 .if_dvbt_7 = 4150,
103 .if_dvbt_8 = 4500,
104 .if_dvbc = 5000,
105 };
106
c8sectpfe_frontend_attach(struct dvb_frontend ** fe,struct c8sectpfe * c8sectpfe,struct channel_info * tsin,int chan_num)107 int c8sectpfe_frontend_attach(struct dvb_frontend **fe,
108 struct c8sectpfe *c8sectpfe,
109 struct channel_info *tsin, int chan_num)
110 {
111 struct tda18212_config *tda18212;
112 const struct stv6110x_devctl *fe2;
113 struct i2c_client *client;
114 struct i2c_board_info tda18212_info = {
115 .type = "tda18212",
116 .addr = 0x60,
117 };
118
119 if (!tsin)
120 return -EINVAL;
121
122 switch (tsin->dvb_card) {
123
124 case STV0367_TDA18212_NIMA_1:
125 case STV0367_TDA18212_NIMA_2:
126 case STV0367_TDA18212_NIMB_1:
127 case STV0367_TDA18212_NIMB_2:
128 if (tsin->dvb_card == STV0367_TDA18212_NIMA_1)
129 *fe = dvb_attach(stv0367ter_attach,
130 &stv0367_tda18212_config[0],
131 tsin->i2c_adapter);
132 else if (tsin->dvb_card == STV0367_TDA18212_NIMB_1)
133 *fe = dvb_attach(stv0367ter_attach,
134 &stv0367_tda18212_config[1],
135 tsin->i2c_adapter);
136 else
137 *fe = dvb_attach(stv0367ter_attach,
138 &stv0367_tda18212_config[2],
139 tsin->i2c_adapter);
140
141 if (!*fe) {
142 dev_err(c8sectpfe->device,
143 "%s: stv0367ter_attach failed for NIM card %s\n"
144 , __func__, dvb_card_str(tsin->dvb_card));
145 return -ENODEV;
146 };
147
148 /*
149 * init the demod so that i2c gate_ctrl
150 * to the tuner works correctly
151 */
152 (*fe)->ops.init(*fe);
153
154 /* Allocate the tda18212 structure */
155 tda18212 = devm_kzalloc(c8sectpfe->device,
156 sizeof(struct tda18212_config),
157 GFP_KERNEL);
158 if (!tda18212) {
159 dev_err(c8sectpfe->device,
160 "%s: devm_kzalloc failed\n", __func__);
161 return -ENOMEM;
162 }
163
164 memcpy(tda18212, &tda18212_conf,
165 sizeof(struct tda18212_config));
166
167 tda18212->fe = (*fe);
168
169 tda18212_info.platform_data = tda18212;
170
171 /* attach tuner */
172 request_module("tda18212");
173 client = i2c_new_device(tsin->i2c_adapter, &tda18212_info);
174 if (!client || !client->dev.driver) {
175 dvb_frontend_detach(*fe);
176 return -ENODEV;
177 }
178
179 if (!try_module_get(client->dev.driver->owner)) {
180 i2c_unregister_device(client);
181 dvb_frontend_detach(*fe);
182 return -ENODEV;
183 }
184
185 tsin->i2c_client = client;
186
187 break;
188
189 case STV0903_6110_LNB24_NIMA:
190 *fe = dvb_attach(stv090x_attach, &stv090x_config,
191 tsin->i2c_adapter, STV090x_DEMODULATOR_0);
192 if (!*fe) {
193 dev_err(c8sectpfe->device, "%s: stv090x_attach failed\n"
194 "\tfor NIM card %s\n",
195 __func__, dvb_card_str(tsin->dvb_card));
196 return -ENODEV;
197 }
198
199 fe2 = dvb_attach(stv6110x_attach, *fe,
200 &stv6110x_config, tsin->i2c_adapter);
201 if (!fe2) {
202 dev_err(c8sectpfe->device,
203 "%s: stv6110x_attach failed for NIM card %s\n"
204 , __func__, dvb_card_str(tsin->dvb_card));
205 return -ENODEV;
206 };
207
208 stv090x_config.tuner_init = fe2->tuner_init;
209 stv090x_config.tuner_set_mode = fe2->tuner_set_mode;
210 stv090x_config.tuner_set_frequency = fe2->tuner_set_frequency;
211 stv090x_config.tuner_get_frequency = fe2->tuner_get_frequency;
212 stv090x_config.tuner_set_bandwidth = fe2->tuner_set_bandwidth;
213 stv090x_config.tuner_get_bandwidth = fe2->tuner_get_bandwidth;
214 stv090x_config.tuner_set_bbgain = fe2->tuner_set_bbgain;
215 stv090x_config.tuner_get_bbgain = fe2->tuner_get_bbgain;
216 stv090x_config.tuner_set_refclk = fe2->tuner_set_refclk;
217 stv090x_config.tuner_get_status = fe2->tuner_get_status;
218
219 dvb_attach(lnbh24_attach, *fe, tsin->i2c_adapter, 0, 0, 0x9);
220 break;
221
222 default:
223 dev_err(c8sectpfe->device,
224 "%s: DVB frontend card %s not yet supported\n",
225 __func__, dvb_card_str(tsin->dvb_card));
226 return -ENODEV;
227 }
228
229 (*fe)->id = chan_num;
230
231 dev_info(c8sectpfe->device,
232 "DVB frontend card %s successfully attached",
233 dvb_card_str(tsin->dvb_card));
234 return 0;
235 }
236
