1 /*
2 * Copyright (c) 2011-2012 - Mauro Carvalho Chehab
3 * Copyright (c) 2012 - Andre Roth <neolynx@gmail.com>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU Lesser General Public License as published by
7 * the Free Software Foundation version 2.1 of the License.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 * Or, point your browser to http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
18 *
19 * Described at ETSI EN 300 468 V1.11.1 (2010-04)
20 */
21
22 #include <libdvbv5/desc_cable_delivery.h>
23 #include <libdvbv5/dvb-fe.h>
24
25 #if __GNUC__ >= 9
26 #pragma GCC diagnostic ignored "-Waddress-of-packed-member"
27 #endif
28
dvb_desc_cable_delivery_init(struct dvb_v5_fe_parms * parms,const uint8_t * buf,struct dvb_desc * desc)29 int dvb_desc_cable_delivery_init(struct dvb_v5_fe_parms *parms, const uint8_t *buf, struct dvb_desc *desc)
30 {
31 struct dvb_desc_cable_delivery *cable = (struct dvb_desc_cable_delivery *) desc;
32 size_t len, dlen = desc->length;
33 size_t start;
34
35 start = offsetof(struct dvb_desc_cable_delivery, frequency);
36 len = sizeof(*cable) - start;
37
38 if (len != dlen) {
39 dvb_logwarn("cable delivery descriptor size is wrong: expected %zu, received %zu",
40 len, dlen);
41 return -1;
42 }
43
44 /* copy only the data - length already initialize */
45 memcpy(((uint8_t *) cable) + start, buf, dlen);
46 bswap32(cable->frequency);
47 bswap16(cable->bitfield1);
48 bswap32(cable->bitfield2);
49 cable->frequency = dvb_bcd(cable->frequency) * 100;
50 cable->symbol_rate = dvb_bcd(cable->symbol_rate) * 100;
51 return 0;
52 }
53
dvb_desc_cable_delivery_print(struct dvb_v5_fe_parms * parms,const struct dvb_desc * desc)54 void dvb_desc_cable_delivery_print(struct dvb_v5_fe_parms *parms, const struct dvb_desc *desc)
55 {
56 const struct dvb_desc_cable_delivery *cable = (const struct dvb_desc_cable_delivery *) desc;
57 dvb_loginfo("| length %d", cable->length);
58 dvb_loginfo("| frequency %d", cable->frequency);
59 dvb_loginfo("| fec outer %d", cable->fec_outer);
60 dvb_loginfo("| modulation %d", cable->modulation);
61 dvb_loginfo("| symbol_rate %d", cable->symbol_rate);
62 dvb_loginfo("| fec inner %d", cable->fec_inner);
63 }
64
65 const unsigned dvbc_fec_table[] = {
66 [0] = FEC_AUTO, /* not defined */
67 [1] = FEC_1_2,
68 [2] = FEC_2_3,
69 [3] = FEC_3_4,
70 [4] = FEC_5_6,
71 [5] = FEC_7_8,
72 [6] = FEC_8_9,
73 [7] = FEC_3_5,
74 [8] = FEC_4_5,
75 [9] = FEC_9_10,
76 [10 ...14] = FEC_AUTO, /* Reserved for future usage */
77 [15] = FEC_NONE,
78 };
79
80 const unsigned dvbc_modulation_table[] = {
81 [0] = QAM_AUTO, /* Not defined */
82 [1] = QAM_16,
83 [2] = QAM_32,
84 [3] = QAM_64,
85 [4] = QAM_128,
86 [5] = QAM_256,
87 [6 ...255] = QAM_AUTO /* Reserved for future usage */
88 };
89
90