disable FB

hc

2024-01-04 1543e317f1da31b75942316931e8f491a8920811

 kernel/drivers/media/dvb-frontends/dvb_dummy_fe.c
..
..
@@ -1,18 +1,8 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
1
2
 /*
2
3
  *  Driver for Dummy Frontend
3
4
  *
4
5
  *  Written by Emard <emard@softhome.net>
5
- *
6
- *  This program is free software; you can redistribute it and/or modify
7
- *  it under the terms of the GNU General Public License as published by
8
- *  the Free Software Foundation; either version 2 of the License, or
9
- *  (at your option) any later version.
10
- *
11
- *  This program is distributed in the hope that it will be useful,
12
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
13
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14
- *
15
- *  GNU General Public License for more details.
16
6
  */
17
7
 
18
8
 #include <linux/module.h>
..
..
@@ -41,25 +31,26 @@
41
31
 	return 0;
42
32
 }
43
33
 
44
-static int dvb_dummy_fe_read_ber(struct dvb_frontend* fe, u32* ber)
34
+static int dvb_dummy_fe_read_ber(struct dvb_frontend *fe, u32 *ber)
45
35
 {
46
36
 	*ber = 0;
47
37
 	return 0;
48
38
 }
49
39
 
50
-static int dvb_dummy_fe_read_signal_strength(struct dvb_frontend* fe, u16* strength)
40
+static int dvb_dummy_fe_read_signal_strength(struct dvb_frontend *fe,
41
+					     u16 *strength)
51
42
 {
52
43
 	*strength = 0;
53
44
 	return 0;
54
45
 }
55
46
 
56
-static int dvb_dummy_fe_read_snr(struct dvb_frontend* fe, u16* snr)
47
+static int dvb_dummy_fe_read_snr(struct dvb_frontend *fe, u16 *snr)
57
48
 {
58
49
 	*snr = 0;
59
50
 	return 0;
60
51
 }
61
52
 
62
-static int dvb_dummy_fe_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
53
+static int dvb_dummy_fe_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
63
54
 {
64
55
 	*ucblocks = 0;
65
56
 	return 0;
..
..
@@ -87,12 +78,12 @@
87
78
 	return 0;
88
79
 }
89
80
 
90
-static int dvb_dummy_fe_sleep(struct dvb_frontend* fe)
81
+static int dvb_dummy_fe_sleep(struct dvb_frontend *fe)
91
82
 {
92
83
 	return 0;
93
84
 }
94
85
 
95
-static int dvb_dummy_fe_init(struct dvb_frontend* fe)
86
+static int dvb_dummy_fe_init(struct dvb_frontend *fe)
96
87
 {
97
88
 	return 0;
98
89
 }
..
..
@@ -109,17 +100,18 @@
109
100
 	return 0;
110
101
 }
111
102
 
112
-static void dvb_dummy_fe_release(struct dvb_frontend* fe)
103
+static void dvb_dummy_fe_release(struct dvb_frontend *fe)
113
104
 {
114
-	struct dvb_dummy_fe_state* state = fe->demodulator_priv;
105
+	struct dvb_dummy_fe_state *state = fe->demodulator_priv;
106
+
115
107
 	kfree(state);
116
108
 }
117
109
 
118
110
 static const struct dvb_frontend_ops dvb_dummy_fe_ofdm_ops;
119
111
 
120
-struct dvb_frontend* dvb_dummy_fe_ofdm_attach(void)
112
+struct dvb_frontend *dvb_dummy_fe_ofdm_attach(void)
121
113
 {
122
-	struct dvb_dummy_fe_state* state = NULL;
114
+	struct dvb_dummy_fe_state *state = NULL;
123
115
 
124
116
 	/* allocate memory for the internal state */
125
117
 	state = kzalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL);
..
..
@@ -127,16 +119,20 @@
127
119
 		return NULL;
128
120
 
129
121
 	/* create dvb_frontend */
130
-	memcpy(&state->frontend.ops, &dvb_dummy_fe_ofdm_ops, sizeof(struct dvb_frontend_ops));
122
+	memcpy(&state->frontend.ops,
123
+	       &dvb_dummy_fe_ofdm_ops,
124
+	       sizeof(struct dvb_frontend_ops));
125
+
131
126
 	state->frontend.demodulator_priv = state;
132
127
 	return &state->frontend;
133
128
 }
129
+EXPORT_SYMBOL(dvb_dummy_fe_ofdm_attach);
134
130
 
135
131
 static const struct dvb_frontend_ops dvb_dummy_fe_qpsk_ops;
136
132
 
137
133
 struct dvb_frontend *dvb_dummy_fe_qpsk_attach(void)
138
134
 {
139
-	struct dvb_dummy_fe_state* state = NULL;
135
+	struct dvb_dummy_fe_state *state = NULL;
140
136
 
141
137
 	/* allocate memory for the internal state */
142
138
 	state = kzalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL);
..
..
@@ -144,16 +140,20 @@
144
140
 		return NULL;
145
141
 
146
142
 	/* create dvb_frontend */
147
-	memcpy(&state->frontend.ops, &dvb_dummy_fe_qpsk_ops, sizeof(struct dvb_frontend_ops));
143
+	memcpy(&state->frontend.ops,
144
+	       &dvb_dummy_fe_qpsk_ops,
145
+	       sizeof(struct dvb_frontend_ops));
146
+
148
147
 	state->frontend.demodulator_priv = state;
149
148
 	return &state->frontend;
150
149
 }
150
+EXPORT_SYMBOL(dvb_dummy_fe_qpsk_attach);
151
151
 
152
152
 static const struct dvb_frontend_ops dvb_dummy_fe_qam_ops;
153
153
 
154
154
 struct dvb_frontend *dvb_dummy_fe_qam_attach(void)
155
155
 {
156
-	struct dvb_dummy_fe_state* state = NULL;
156
+	struct dvb_dummy_fe_state *state = NULL;
157
157
 
158
158
 	/* allocate memory for the internal state */
159
159
 	state = kzalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL);
..
..
@@ -161,10 +161,14 @@
161
161
 		return NULL;
162
162
 
163
163
 	/* create dvb_frontend */
164
-	memcpy(&state->frontend.ops, &dvb_dummy_fe_qam_ops, sizeof(struct dvb_frontend_ops));
164
+	memcpy(&state->frontend.ops,
165
+	       &dvb_dummy_fe_qam_ops,
166
+	       sizeof(struct dvb_frontend_ops));
167
+
165
168
 	state->frontend.demodulator_priv = state;
166
169
 	return &state->frontend;
167
170
 }
171
+EXPORT_SYMBOL(dvb_dummy_fe_qam_attach);
168
172
 
169
173
 static const struct dvb_frontend_ops dvb_dummy_fe_ofdm_ops = {
170
174
 	.delsys = { SYS_DVBT },
..
..
@@ -173,13 +177,21 @@
173
177
 		.frequency_min_hz	= 0,
174
178
 		.frequency_max_hz	= 863250 * kHz,
175
179
 		.frequency_stepsize_hz	= 62500,
176
-		.caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
177
-				FE_CAN_FEC_4_5 | FE_CAN_FEC_5_6 | FE_CAN_FEC_6_7 |
178
-				FE_CAN_FEC_7_8 | FE_CAN_FEC_8_9 | FE_CAN_FEC_AUTO |
179
-				FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO |
180
-				FE_CAN_TRANSMISSION_MODE_AUTO |
181
-				FE_CAN_GUARD_INTERVAL_AUTO |
182
-				FE_CAN_HIERARCHY_AUTO,
180
+		.caps = FE_CAN_FEC_1_2 |
181
+			FE_CAN_FEC_2_3 |
182
+			FE_CAN_FEC_3_4 |
183
+			FE_CAN_FEC_4_5 |
184
+			FE_CAN_FEC_5_6 |
185
+			FE_CAN_FEC_6_7 |
186
+			FE_CAN_FEC_7_8 |
187
+			FE_CAN_FEC_8_9 |
188
+			FE_CAN_FEC_AUTO |
189
+			FE_CAN_QAM_16 |
190
+			FE_CAN_QAM_64 |
191
+			FE_CAN_QAM_AUTO |
192
+			FE_CAN_TRANSMISSION_MODE_AUTO |
193
+			FE_CAN_GUARD_INTERVAL_AUTO |
194
+			FE_CAN_HIERARCHY_AUTO,
183
195
 	},
184
196
 
185
197
 	.release = dvb_dummy_fe_release,
..
..
@@ -204,11 +216,16 @@
204
216
 		.frequency_min_hz	=  51 * MHz,
205
217
 		.frequency_max_hz	= 858 * MHz,
206
218
 		.frequency_stepsize_hz	= 62500,
207
-		.symbol_rate_min	= (57840000 / 2) / 64,  /* SACLK/64 == (XIN/2)/64 */
219
+		/* symbol_rate_min: SACLK/64 == (XIN/2)/64 */
220
+		.symbol_rate_min	= (57840000 / 2) / 64,
208
221
 		.symbol_rate_max	= (57840000 / 2) / 4,   /* SACLK/4 */
209
-		.caps = FE_CAN_QAM_16 | FE_CAN_QAM_32 | FE_CAN_QAM_64 |
210
-			FE_CAN_QAM_128 | FE_CAN_QAM_256 |
211
-			FE_CAN_FEC_AUTO | FE_CAN_INVERSION_AUTO
222
+		.caps = FE_CAN_QAM_16 |
223
+			FE_CAN_QAM_32 |
224
+			FE_CAN_QAM_64 |
225
+			FE_CAN_QAM_128 |
226
+			FE_CAN_QAM_256 |
227
+			FE_CAN_FEC_AUTO |
228
+			FE_CAN_INVERSION_AUTO
212
229
 	},
213
230
 
214
231
 	.release = dvb_dummy_fe_release,
..
..
@@ -237,8 +254,12 @@
237
254
 		.symbol_rate_min	= 1000000,
238
255
 		.symbol_rate_max	= 45000000,
239
256
 		.caps = FE_CAN_INVERSION_AUTO |
240
-			FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
241
-			FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
257
+			FE_CAN_FEC_1_2 |
258
+			FE_CAN_FEC_2_3 |
259
+			FE_CAN_FEC_3_4 |
260
+			FE_CAN_FEC_5_6 |
261
+			FE_CAN_FEC_7_8 |
262
+			FE_CAN_FEC_AUTO |
242
263
 			FE_CAN_QPSK
243
264
 	},
244
265
 
..
..
@@ -263,7 +284,3 @@
263
284
 MODULE_DESCRIPTION("DVB DUMMY Frontend");
264
285
 MODULE_AUTHOR("Emard");
265
286
 MODULE_LICENSE("GPL");
266
-
267
-EXPORT_SYMBOL(dvb_dummy_fe_ofdm_attach);
268
-EXPORT_SYMBOL(dvb_dummy_fe_qam_attach);
269
-EXPORT_SYMBOL(dvb_dummy_fe_qpsk_attach);