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0001 /* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
0002 /*
0003  * cec - HDMI Consumer Electronics Control message functions
0004  *
0005  * Copyright 2016 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
0006  */
0007 
0008 #ifndef _CEC_UAPI_FUNCS_H
0009 #define _CEC_UAPI_FUNCS_H
0010 
0011 #include <linux/cec.h>
0012 
0013 /* One Touch Play Feature */
0014 static inline void cec_msg_active_source(struct cec_msg *msg, __u16 phys_addr)
0015 {
0016     msg->len = 4;
0017     msg->msg[0] |= 0xf; /* broadcast */
0018     msg->msg[1] = CEC_MSG_ACTIVE_SOURCE;
0019     msg->msg[2] = phys_addr >> 8;
0020     msg->msg[3] = phys_addr & 0xff;
0021 }
0022 
0023 static inline void cec_ops_active_source(const struct cec_msg *msg,
0024                      __u16 *phys_addr)
0025 {
0026     *phys_addr = (msg->msg[2] << 8) | msg->msg[3];
0027 }
0028 
0029 static inline void cec_msg_image_view_on(struct cec_msg *msg)
0030 {
0031     msg->len = 2;
0032     msg->msg[1] = CEC_MSG_IMAGE_VIEW_ON;
0033 }
0034 
0035 static inline void cec_msg_text_view_on(struct cec_msg *msg)
0036 {
0037     msg->len = 2;
0038     msg->msg[1] = CEC_MSG_TEXT_VIEW_ON;
0039 }
0040 
0041 
0042 /* Routing Control Feature */
0043 static inline void cec_msg_inactive_source(struct cec_msg *msg,
0044                        __u16 phys_addr)
0045 {
0046     msg->len = 4;
0047     msg->msg[1] = CEC_MSG_INACTIVE_SOURCE;
0048     msg->msg[2] = phys_addr >> 8;
0049     msg->msg[3] = phys_addr & 0xff;
0050 }
0051 
0052 static inline void cec_ops_inactive_source(const struct cec_msg *msg,
0053                        __u16 *phys_addr)
0054 {
0055     *phys_addr = (msg->msg[2] << 8) | msg->msg[3];
0056 }
0057 
0058 static inline void cec_msg_request_active_source(struct cec_msg *msg,
0059                          int reply)
0060 {
0061     msg->len = 2;
0062     msg->msg[0] |= 0xf; /* broadcast */
0063     msg->msg[1] = CEC_MSG_REQUEST_ACTIVE_SOURCE;
0064     msg->reply = reply ? CEC_MSG_ACTIVE_SOURCE : 0;
0065 }
0066 
0067 static inline void cec_msg_routing_information(struct cec_msg *msg,
0068                            __u16 phys_addr)
0069 {
0070     msg->len = 4;
0071     msg->msg[0] |= 0xf; /* broadcast */
0072     msg->msg[1] = CEC_MSG_ROUTING_INFORMATION;
0073     msg->msg[2] = phys_addr >> 8;
0074     msg->msg[3] = phys_addr & 0xff;
0075 }
0076 
0077 static inline void cec_ops_routing_information(const struct cec_msg *msg,
0078                            __u16 *phys_addr)
0079 {
0080     *phys_addr = (msg->msg[2] << 8) | msg->msg[3];
0081 }
0082 
0083 static inline void cec_msg_routing_change(struct cec_msg *msg,
0084                       int reply,
0085                       __u16 orig_phys_addr,
0086                       __u16 new_phys_addr)
0087 {
0088     msg->len = 6;
0089     msg->msg[0] |= 0xf; /* broadcast */
0090     msg->msg[1] = CEC_MSG_ROUTING_CHANGE;
0091     msg->msg[2] = orig_phys_addr >> 8;
0092     msg->msg[3] = orig_phys_addr & 0xff;
0093     msg->msg[4] = new_phys_addr >> 8;
0094     msg->msg[5] = new_phys_addr & 0xff;
0095     msg->reply = reply ? CEC_MSG_ROUTING_INFORMATION : 0;
0096 }
0097 
0098 static inline void cec_ops_routing_change(const struct cec_msg *msg,
0099                       __u16 *orig_phys_addr,
0100                       __u16 *new_phys_addr)
0101 {
0102     *orig_phys_addr = (msg->msg[2] << 8) | msg->msg[3];
0103     *new_phys_addr = (msg->msg[4] << 8) | msg->msg[5];
0104 }
0105 
0106 static inline void cec_msg_set_stream_path(struct cec_msg *msg, __u16 phys_addr)
0107 {
0108     msg->len = 4;
0109     msg->msg[0] |= 0xf; /* broadcast */
0110     msg->msg[1] = CEC_MSG_SET_STREAM_PATH;
0111     msg->msg[2] = phys_addr >> 8;
0112     msg->msg[3] = phys_addr & 0xff;
0113 }
0114 
0115 static inline void cec_ops_set_stream_path(const struct cec_msg *msg,
0116                        __u16 *phys_addr)
0117 {
0118     *phys_addr = (msg->msg[2] << 8) | msg->msg[3];
0119 }
0120 
0121 
0122 /* Standby Feature */
0123 static inline void cec_msg_standby(struct cec_msg *msg)
0124 {
0125     msg->len = 2;
0126     msg->msg[1] = CEC_MSG_STANDBY;
0127 }
0128 
0129 
0130 /* One Touch Record Feature */
0131 static inline void cec_msg_record_off(struct cec_msg *msg, int reply)
0132 {
0133     msg->len = 2;
0134     msg->msg[1] = CEC_MSG_RECORD_OFF;
0135     msg->reply = reply ? CEC_MSG_RECORD_STATUS : 0;
0136 }
0137 
0138 struct cec_op_arib_data {
0139     __u16 transport_id;
0140     __u16 service_id;
0141     __u16 orig_network_id;
0142 };
0143 
0144 struct cec_op_atsc_data {
0145     __u16 transport_id;
0146     __u16 program_number;
0147 };
0148 
0149 struct cec_op_dvb_data {
0150     __u16 transport_id;
0151     __u16 service_id;
0152     __u16 orig_network_id;
0153 };
0154 
0155 struct cec_op_channel_data {
0156     __u8 channel_number_fmt;
0157     __u16 major;
0158     __u16 minor;
0159 };
0160 
0161 struct cec_op_digital_service_id {
0162     __u8 service_id_method;
0163     __u8 dig_bcast_system;
0164     union {
0165         struct cec_op_arib_data arib;
0166         struct cec_op_atsc_data atsc;
0167         struct cec_op_dvb_data dvb;
0168         struct cec_op_channel_data channel;
0169     };
0170 };
0171 
0172 struct cec_op_record_src {
0173     __u8 type;
0174     union {
0175         struct cec_op_digital_service_id digital;
0176         struct {
0177             __u8 ana_bcast_type;
0178             __u16 ana_freq;
0179             __u8 bcast_system;
0180         } analog;
0181         struct {
0182             __u8 plug;
0183         } ext_plug;
0184         struct {
0185             __u16 phys_addr;
0186         } ext_phys_addr;
0187     };
0188 };
0189 
0190 static inline void cec_set_digital_service_id(__u8 *msg,
0191           const struct cec_op_digital_service_id *digital)
0192 {
0193     *msg++ = (digital->service_id_method << 7) | digital->dig_bcast_system;
0194     if (digital->service_id_method == CEC_OP_SERVICE_ID_METHOD_BY_CHANNEL) {
0195         *msg++ = (digital->channel.channel_number_fmt << 2) |
0196              (digital->channel.major >> 8);
0197         *msg++ = digital->channel.major & 0xff;
0198         *msg++ = digital->channel.minor >> 8;
0199         *msg++ = digital->channel.minor & 0xff;
0200         *msg++ = 0;
0201         *msg++ = 0;
0202         return;
0203     }
0204     switch (digital->dig_bcast_system) {
0205     case CEC_OP_DIG_SERVICE_BCAST_SYSTEM_ATSC_GEN:
0206     case CEC_OP_DIG_SERVICE_BCAST_SYSTEM_ATSC_CABLE:
0207     case CEC_OP_DIG_SERVICE_BCAST_SYSTEM_ATSC_SAT:
0208     case CEC_OP_DIG_SERVICE_BCAST_SYSTEM_ATSC_T:
0209         *msg++ = digital->atsc.transport_id >> 8;
0210         *msg++ = digital->atsc.transport_id & 0xff;
0211         *msg++ = digital->atsc.program_number >> 8;
0212         *msg++ = digital->atsc.program_number & 0xff;
0213         *msg++ = 0;
0214         *msg++ = 0;
0215         break;
0216     default:
0217         *msg++ = digital->dvb.transport_id >> 8;
0218         *msg++ = digital->dvb.transport_id & 0xff;
0219         *msg++ = digital->dvb.service_id >> 8;
0220         *msg++ = digital->dvb.service_id & 0xff;
0221         *msg++ = digital->dvb.orig_network_id >> 8;
0222         *msg++ = digital->dvb.orig_network_id & 0xff;
0223         break;
0224     }
0225 }
0226 
0227 static inline void cec_get_digital_service_id(const __u8 *msg,
0228           struct cec_op_digital_service_id *digital)
0229 {
0230     digital->service_id_method = msg[0] >> 7;
0231     digital->dig_bcast_system = msg[0] & 0x7f;
0232     if (digital->service_id_method == CEC_OP_SERVICE_ID_METHOD_BY_CHANNEL) {
0233         digital->channel.channel_number_fmt = msg[1] >> 2;
0234         digital->channel.major = ((msg[1] & 3) << 6) | msg[2];
0235         digital->channel.minor = (msg[3] << 8) | msg[4];
0236         return;
0237     }
0238     digital->dvb.transport_id = (msg[1] << 8) | msg[2];
0239     digital->dvb.service_id = (msg[3] << 8) | msg[4];
0240     digital->dvb.orig_network_id = (msg[5] << 8) | msg[6];
0241 }
0242 
0243 static inline void cec_msg_record_on_own(struct cec_msg *msg)
0244 {
0245     msg->len = 3;
0246     msg->msg[1] = CEC_MSG_RECORD_ON;
0247     msg->msg[2] = CEC_OP_RECORD_SRC_OWN;
0248 }
0249 
0250 static inline void cec_msg_record_on_digital(struct cec_msg *msg,
0251                  const struct cec_op_digital_service_id *digital)
0252 {
0253     msg->len = 10;
0254     msg->msg[1] = CEC_MSG_RECORD_ON;
0255     msg->msg[2] = CEC_OP_RECORD_SRC_DIGITAL;
0256     cec_set_digital_service_id(msg->msg + 3, digital);
0257 }
0258 
0259 static inline void cec_msg_record_on_analog(struct cec_msg *msg,
0260                         __u8 ana_bcast_type,
0261                         __u16 ana_freq,
0262                         __u8 bcast_system)
0263 {
0264     msg->len = 7;
0265     msg->msg[1] = CEC_MSG_RECORD_ON;
0266     msg->msg[2] = CEC_OP_RECORD_SRC_ANALOG;
0267     msg->msg[3] = ana_bcast_type;
0268     msg->msg[4] = ana_freq >> 8;
0269     msg->msg[5] = ana_freq & 0xff;
0270     msg->msg[6] = bcast_system;
0271 }
0272 
0273 static inline void cec_msg_record_on_plug(struct cec_msg *msg,
0274                       __u8 plug)
0275 {
0276     msg->len = 4;
0277     msg->msg[1] = CEC_MSG_RECORD_ON;
0278     msg->msg[2] = CEC_OP_RECORD_SRC_EXT_PLUG;
0279     msg->msg[3] = plug;
0280 }
0281 
0282 static inline void cec_msg_record_on_phys_addr(struct cec_msg *msg,
0283                            __u16 phys_addr)
0284 {
0285     msg->len = 5;
0286     msg->msg[1] = CEC_MSG_RECORD_ON;
0287     msg->msg[2] = CEC_OP_RECORD_SRC_EXT_PHYS_ADDR;
0288     msg->msg[3] = phys_addr >> 8;
0289     msg->msg[4] = phys_addr & 0xff;
0290 }
0291 
0292 static inline void cec_msg_record_on(struct cec_msg *msg,
0293                      int reply,
0294                      const struct cec_op_record_src *rec_src)
0295 {
0296     switch (rec_src->type) {
0297     case CEC_OP_RECORD_SRC_OWN:
0298         cec_msg_record_on_own(msg);
0299         break;
0300     case CEC_OP_RECORD_SRC_DIGITAL:
0301         cec_msg_record_on_digital(msg, &rec_src->digital);
0302         break;
0303     case CEC_OP_RECORD_SRC_ANALOG:
0304         cec_msg_record_on_analog(msg,
0305                      rec_src->analog.ana_bcast_type,
0306                      rec_src->analog.ana_freq,
0307                      rec_src->analog.bcast_system);
0308         break;
0309     case CEC_OP_RECORD_SRC_EXT_PLUG:
0310         cec_msg_record_on_plug(msg, rec_src->ext_plug.plug);
0311         break;
0312     case CEC_OP_RECORD_SRC_EXT_PHYS_ADDR:
0313         cec_msg_record_on_phys_addr(msg,
0314                         rec_src->ext_phys_addr.phys_addr);
0315         break;
0316     }
0317     msg->reply = reply ? CEC_MSG_RECORD_STATUS : 0;
0318 }
0319 
0320 static inline void cec_ops_record_on(const struct cec_msg *msg,
0321                      struct cec_op_record_src *rec_src)
0322 {
0323     rec_src->type = msg->msg[2];
0324     switch (rec_src->type) {
0325     case CEC_OP_RECORD_SRC_OWN:
0326         break;
0327     case CEC_OP_RECORD_SRC_DIGITAL:
0328         cec_get_digital_service_id(msg->msg + 3, &rec_src->digital);
0329         break;
0330     case CEC_OP_RECORD_SRC_ANALOG:
0331         rec_src->analog.ana_bcast_type = msg->msg[3];
0332         rec_src->analog.ana_freq =
0333             (msg->msg[4] << 8) | msg->msg[5];
0334         rec_src->analog.bcast_system = msg->msg[6];
0335         break;
0336     case CEC_OP_RECORD_SRC_EXT_PLUG:
0337         rec_src->ext_plug.plug = msg->msg[3];
0338         break;
0339     case CEC_OP_RECORD_SRC_EXT_PHYS_ADDR:
0340         rec_src->ext_phys_addr.phys_addr =
0341             (msg->msg[3] << 8) | msg->msg[4];
0342         break;
0343     }
0344 }
0345 
0346 static inline void cec_msg_record_status(struct cec_msg *msg, __u8 rec_status)
0347 {
0348     msg->len = 3;
0349     msg->msg[1] = CEC_MSG_RECORD_STATUS;
0350     msg->msg[2] = rec_status;
0351 }
0352 
0353 static inline void cec_ops_record_status(const struct cec_msg *msg,
0354                      __u8 *rec_status)
0355 {
0356     *rec_status = msg->msg[2];
0357 }
0358 
0359 static inline void cec_msg_record_tv_screen(struct cec_msg *msg,
0360                         int reply)
0361 {
0362     msg->len = 2;
0363     msg->msg[1] = CEC_MSG_RECORD_TV_SCREEN;
0364     msg->reply = reply ? CEC_MSG_RECORD_ON : 0;
0365 }
0366 
0367 
0368 /* Timer Programming Feature */
0369 static inline void cec_msg_timer_status(struct cec_msg *msg,
0370                     __u8 timer_overlap_warning,
0371                     __u8 media_info,
0372                     __u8 prog_info,
0373                     __u8 prog_error,
0374                     __u8 duration_hr,
0375                     __u8 duration_min)
0376 {
0377     msg->len = 3;
0378     msg->msg[1] = CEC_MSG_TIMER_STATUS;
0379     msg->msg[2] = (timer_overlap_warning << 7) |
0380         (media_info << 5) |
0381         (prog_info ? 0x10 : 0) |
0382         (prog_info ? prog_info : prog_error);
0383     if (prog_info == CEC_OP_PROG_INFO_NOT_ENOUGH_SPACE ||
0384         prog_info == CEC_OP_PROG_INFO_MIGHT_NOT_BE_ENOUGH_SPACE ||
0385         prog_error == CEC_OP_PROG_ERROR_DUPLICATE) {
0386         msg->len += 2;
0387         msg->msg[3] = ((duration_hr / 10) << 4) | (duration_hr % 10);
0388         msg->msg[4] = ((duration_min / 10) << 4) | (duration_min % 10);
0389     }
0390 }
0391 
0392 static inline void cec_ops_timer_status(const struct cec_msg *msg,
0393                     __u8 *timer_overlap_warning,
0394                     __u8 *media_info,
0395                     __u8 *prog_info,
0396                     __u8 *prog_error,
0397                     __u8 *duration_hr,
0398                     __u8 *duration_min)
0399 {
0400     *timer_overlap_warning = msg->msg[2] >> 7;
0401     *media_info = (msg->msg[2] >> 5) & 3;
0402     if (msg->msg[2] & 0x10) {
0403         *prog_info = msg->msg[2] & 0xf;
0404         *prog_error = 0;
0405     } else {
0406         *prog_info = 0;
0407         *prog_error = msg->msg[2] & 0xf;
0408     }
0409     if (*prog_info == CEC_OP_PROG_INFO_NOT_ENOUGH_SPACE ||
0410         *prog_info == CEC_OP_PROG_INFO_MIGHT_NOT_BE_ENOUGH_SPACE ||
0411         *prog_error == CEC_OP_PROG_ERROR_DUPLICATE) {
0412         *duration_hr = (msg->msg[3] >> 4) * 10 + (msg->msg[3] & 0xf);
0413         *duration_min = (msg->msg[4] >> 4) * 10 + (msg->msg[4] & 0xf);
0414     } else {
0415         *duration_hr = *duration_min = 0;
0416     }
0417 }
0418 
0419 static inline void cec_msg_timer_cleared_status(struct cec_msg *msg,
0420                         __u8 timer_cleared_status)
0421 {
0422     msg->len = 3;
0423     msg->msg[1] = CEC_MSG_TIMER_CLEARED_STATUS;
0424     msg->msg[2] = timer_cleared_status;
0425 }
0426 
0427 static inline void cec_ops_timer_cleared_status(const struct cec_msg *msg,
0428                         __u8 *timer_cleared_status)
0429 {
0430     *timer_cleared_status = msg->msg[2];
0431 }
0432 
0433 static inline void cec_msg_clear_analogue_timer(struct cec_msg *msg,
0434                         int reply,
0435                         __u8 day,
0436                         __u8 month,
0437                         __u8 start_hr,
0438                         __u8 start_min,
0439                         __u8 duration_hr,
0440                         __u8 duration_min,
0441                         __u8 recording_seq,
0442                         __u8 ana_bcast_type,
0443                         __u16 ana_freq,
0444                         __u8 bcast_system)
0445 {
0446     msg->len = 13;
0447     msg->msg[1] = CEC_MSG_CLEAR_ANALOGUE_TIMER;
0448     msg->msg[2] = day;
0449     msg->msg[3] = month;
0450     /* Hours and minutes are in BCD format */
0451     msg->msg[4] = ((start_hr / 10) << 4) | (start_hr % 10);
0452     msg->msg[5] = ((start_min / 10) << 4) | (start_min % 10);
0453     msg->msg[6] = ((duration_hr / 10) << 4) | (duration_hr % 10);
0454     msg->msg[7] = ((duration_min / 10) << 4) | (duration_min % 10);
0455     msg->msg[8] = recording_seq;
0456     msg->msg[9] = ana_bcast_type;
0457     msg->msg[10] = ana_freq >> 8;
0458     msg->msg[11] = ana_freq & 0xff;
0459     msg->msg[12] = bcast_system;
0460     msg->reply = reply ? CEC_MSG_TIMER_CLEARED_STATUS : 0;
0461 }
0462 
0463 static inline void cec_ops_clear_analogue_timer(const struct cec_msg *msg,
0464                         __u8 *day,
0465                         __u8 *month,
0466                         __u8 *start_hr,
0467                         __u8 *start_min,
0468                         __u8 *duration_hr,
0469                         __u8 *duration_min,
0470                         __u8 *recording_seq,
0471                         __u8 *ana_bcast_type,
0472                         __u16 *ana_freq,
0473                         __u8 *bcast_system)
0474 {
0475     *day = msg->msg[2];
0476     *month = msg->msg[3];
0477     /* Hours and minutes are in BCD format */
0478     *start_hr = (msg->msg[4] >> 4) * 10 + (msg->msg[4] & 0xf);
0479     *start_min = (msg->msg[5] >> 4) * 10 + (msg->msg[5] & 0xf);
0480     *duration_hr = (msg->msg[6] >> 4) * 10 + (msg->msg[6] & 0xf);
0481     *duration_min = (msg->msg[7] >> 4) * 10 + (msg->msg[7] & 0xf);
0482     *recording_seq = msg->msg[8];
0483     *ana_bcast_type = msg->msg[9];
0484     *ana_freq = (msg->msg[10] << 8) | msg->msg[11];
0485     *bcast_system = msg->msg[12];
0486 }
0487 
0488 static inline void cec_msg_clear_digital_timer(struct cec_msg *msg,
0489                 int reply,
0490                 __u8 day,
0491                 __u8 month,
0492                 __u8 start_hr,
0493                 __u8 start_min,
0494                 __u8 duration_hr,
0495                 __u8 duration_min,
0496                 __u8 recording_seq,
0497                 const struct cec_op_digital_service_id *digital)
0498 {
0499     msg->len = 16;
0500     msg->reply = reply ? CEC_MSG_TIMER_CLEARED_STATUS : 0;
0501     msg->msg[1] = CEC_MSG_CLEAR_DIGITAL_TIMER;
0502     msg->msg[2] = day;
0503     msg->msg[3] = month;
0504     /* Hours and minutes are in BCD format */
0505     msg->msg[4] = ((start_hr / 10) << 4) | (start_hr % 10);
0506     msg->msg[5] = ((start_min / 10) << 4) | (start_min % 10);
0507     msg->msg[6] = ((duration_hr / 10) << 4) | (duration_hr % 10);
0508     msg->msg[7] = ((duration_min / 10) << 4) | (duration_min % 10);
0509     msg->msg[8] = recording_seq;
0510     cec_set_digital_service_id(msg->msg + 9, digital);
0511 }
0512 
0513 static inline void cec_ops_clear_digital_timer(const struct cec_msg *msg,
0514                 __u8 *day,
0515                 __u8 *month,
0516                 __u8 *start_hr,
0517                 __u8 *start_min,
0518                 __u8 *duration_hr,
0519                 __u8 *duration_min,
0520                 __u8 *recording_seq,
0521                 struct cec_op_digital_service_id *digital)
0522 {
0523     *day = msg->msg[2];
0524     *month = msg->msg[3];
0525     /* Hours and minutes are in BCD format */
0526     *start_hr = (msg->msg[4] >> 4) * 10 + (msg->msg[4] & 0xf);
0527     *start_min = (msg->msg[5] >> 4) * 10 + (msg->msg[5] & 0xf);
0528     *duration_hr = (msg->msg[6] >> 4) * 10 + (msg->msg[6] & 0xf);
0529     *duration_min = (msg->msg[7] >> 4) * 10 + (msg->msg[7] & 0xf);
0530     *recording_seq = msg->msg[8];
0531     cec_get_digital_service_id(msg->msg + 9, digital);
0532 }
0533 
0534 static inline void cec_msg_clear_ext_timer(struct cec_msg *msg,
0535                        int reply,
0536                        __u8 day,
0537                        __u8 month,
0538                        __u8 start_hr,
0539                        __u8 start_min,
0540                        __u8 duration_hr,
0541                        __u8 duration_min,
0542                        __u8 recording_seq,
0543                        __u8 ext_src_spec,
0544                        __u8 plug,
0545                        __u16 phys_addr)
0546 {
0547     msg->len = 13;
0548     msg->msg[1] = CEC_MSG_CLEAR_EXT_TIMER;
0549     msg->msg[2] = day;
0550     msg->msg[3] = month;
0551     /* Hours and minutes are in BCD format */
0552     msg->msg[4] = ((start_hr / 10) << 4) | (start_hr % 10);
0553     msg->msg[5] = ((start_min / 10) << 4) | (start_min % 10);
0554     msg->msg[6] = ((duration_hr / 10) << 4) | (duration_hr % 10);
0555     msg->msg[7] = ((duration_min / 10) << 4) | (duration_min % 10);
0556     msg->msg[8] = recording_seq;
0557     msg->msg[9] = ext_src_spec;
0558     msg->msg[10] = plug;
0559     msg->msg[11] = phys_addr >> 8;
0560     msg->msg[12] = phys_addr & 0xff;
0561     msg->reply = reply ? CEC_MSG_TIMER_CLEARED_STATUS : 0;
0562 }
0563 
0564 static inline void cec_ops_clear_ext_timer(const struct cec_msg *msg,
0565                        __u8 *day,
0566                        __u8 *month,
0567                        __u8 *start_hr,
0568                        __u8 *start_min,
0569                        __u8 *duration_hr,
0570                        __u8 *duration_min,
0571                        __u8 *recording_seq,
0572                        __u8 *ext_src_spec,
0573                        __u8 *plug,
0574                        __u16 *phys_addr)
0575 {
0576     *day = msg->msg[2];
0577     *month = msg->msg[3];
0578     /* Hours and minutes are in BCD format */
0579     *start_hr = (msg->msg[4] >> 4) * 10 + (msg->msg[4] & 0xf);
0580     *start_min = (msg->msg[5] >> 4) * 10 + (msg->msg[5] & 0xf);
0581     *duration_hr = (msg->msg[6] >> 4) * 10 + (msg->msg[6] & 0xf);
0582     *duration_min = (msg->msg[7] >> 4) * 10 + (msg->msg[7] & 0xf);
0583     *recording_seq = msg->msg[8];
0584     *ext_src_spec = msg->msg[9];
0585     *plug = msg->msg[10];
0586     *phys_addr = (msg->msg[11] << 8) | msg->msg[12];
0587 }
0588 
0589 static inline void cec_msg_set_analogue_timer(struct cec_msg *msg,
0590                           int reply,
0591                           __u8 day,
0592                           __u8 month,
0593                           __u8 start_hr,
0594                           __u8 start_min,
0595                           __u8 duration_hr,
0596                           __u8 duration_min,
0597                           __u8 recording_seq,
0598                           __u8 ana_bcast_type,
0599                           __u16 ana_freq,
0600                           __u8 bcast_system)
0601 {
0602     msg->len = 13;
0603     msg->msg[1] = CEC_MSG_SET_ANALOGUE_TIMER;
0604     msg->msg[2] = day;
0605     msg->msg[3] = month;
0606     /* Hours and minutes are in BCD format */
0607     msg->msg[4] = ((start_hr / 10) << 4) | (start_hr % 10);
0608     msg->msg[5] = ((start_min / 10) << 4) | (start_min % 10);
0609     msg->msg[6] = ((duration_hr / 10) << 4) | (duration_hr % 10);
0610     msg->msg[7] = ((duration_min / 10) << 4) | (duration_min % 10);
0611     msg->msg[8] = recording_seq;
0612     msg->msg[9] = ana_bcast_type;
0613     msg->msg[10] = ana_freq >> 8;
0614     msg->msg[11] = ana_freq & 0xff;
0615     msg->msg[12] = bcast_system;
0616     msg->reply = reply ? CEC_MSG_TIMER_STATUS : 0;
0617 }
0618 
0619 static inline void cec_ops_set_analogue_timer(const struct cec_msg *msg,
0620                           __u8 *day,
0621                           __u8 *month,
0622                           __u8 *start_hr,
0623                           __u8 *start_min,
0624                           __u8 *duration_hr,
0625                           __u8 *duration_min,
0626                           __u8 *recording_seq,
0627                           __u8 *ana_bcast_type,
0628                           __u16 *ana_freq,
0629                           __u8 *bcast_system)
0630 {
0631     *day = msg->msg[2];
0632     *month = msg->msg[3];
0633     /* Hours and minutes are in BCD format */
0634     *start_hr = (msg->msg[4] >> 4) * 10 + (msg->msg[4] & 0xf);
0635     *start_min = (msg->msg[5] >> 4) * 10 + (msg->msg[5] & 0xf);
0636     *duration_hr = (msg->msg[6] >> 4) * 10 + (msg->msg[6] & 0xf);
0637     *duration_min = (msg->msg[7] >> 4) * 10 + (msg->msg[7] & 0xf);
0638     *recording_seq = msg->msg[8];
0639     *ana_bcast_type = msg->msg[9];
0640     *ana_freq = (msg->msg[10] << 8) | msg->msg[11];
0641     *bcast_system = msg->msg[12];
0642 }
0643 
0644 static inline void cec_msg_set_digital_timer(struct cec_msg *msg,
0645             int reply,
0646             __u8 day,
0647             __u8 month,
0648             __u8 start_hr,
0649             __u8 start_min,
0650             __u8 duration_hr,
0651             __u8 duration_min,
0652             __u8 recording_seq,
0653             const struct cec_op_digital_service_id *digital)
0654 {
0655     msg->len = 16;
0656     msg->reply = reply ? CEC_MSG_TIMER_STATUS : 0;
0657     msg->msg[1] = CEC_MSG_SET_DIGITAL_TIMER;
0658     msg->msg[2] = day;
0659     msg->msg[3] = month;
0660     /* Hours and minutes are in BCD format */
0661     msg->msg[4] = ((start_hr / 10) << 4) | (start_hr % 10);
0662     msg->msg[5] = ((start_min / 10) << 4) | (start_min % 10);
0663     msg->msg[6] = ((duration_hr / 10) << 4) | (duration_hr % 10);
0664     msg->msg[7] = ((duration_min / 10) << 4) | (duration_min % 10);
0665     msg->msg[8] = recording_seq;
0666     cec_set_digital_service_id(msg->msg + 9, digital);
0667 }
0668 
0669 static inline void cec_ops_set_digital_timer(const struct cec_msg *msg,
0670             __u8 *day,
0671             __u8 *month,
0672             __u8 *start_hr,
0673             __u8 *start_min,
0674             __u8 *duration_hr,
0675             __u8 *duration_min,
0676             __u8 *recording_seq,
0677             struct cec_op_digital_service_id *digital)
0678 {
0679     *day = msg->msg[2];
0680     *month = msg->msg[3];
0681     /* Hours and minutes are in BCD format */
0682     *start_hr = (msg->msg[4] >> 4) * 10 + (msg->msg[4] & 0xf);
0683     *start_min = (msg->msg[5] >> 4) * 10 + (msg->msg[5] & 0xf);
0684     *duration_hr = (msg->msg[6] >> 4) * 10 + (msg->msg[6] & 0xf);
0685     *duration_min = (msg->msg[7] >> 4) * 10 + (msg->msg[7] & 0xf);
0686     *recording_seq = msg->msg[8];
0687     cec_get_digital_service_id(msg->msg + 9, digital);
0688 }
0689 
0690 static inline void cec_msg_set_ext_timer(struct cec_msg *msg,
0691                      int reply,
0692                      __u8 day,
0693                      __u8 month,
0694                      __u8 start_hr,
0695                      __u8 start_min,
0696                      __u8 duration_hr,
0697                      __u8 duration_min,
0698                      __u8 recording_seq,
0699                      __u8 ext_src_spec,
0700                      __u8 plug,
0701                      __u16 phys_addr)
0702 {
0703     msg->len = 13;
0704     msg->msg[1] = CEC_MSG_SET_EXT_TIMER;
0705     msg->msg[2] = day;
0706     msg->msg[3] = month;
0707     /* Hours and minutes are in BCD format */
0708     msg->msg[4] = ((start_hr / 10) << 4) | (start_hr % 10);
0709     msg->msg[5] = ((start_min / 10) << 4) | (start_min % 10);
0710     msg->msg[6] = ((duration_hr / 10) << 4) | (duration_hr % 10);
0711     msg->msg[7] = ((duration_min / 10) << 4) | (duration_min % 10);
0712     msg->msg[8] = recording_seq;
0713     msg->msg[9] = ext_src_spec;
0714     msg->msg[10] = plug;
0715     msg->msg[11] = phys_addr >> 8;
0716     msg->msg[12] = phys_addr & 0xff;
0717     msg->reply = reply ? CEC_MSG_TIMER_STATUS : 0;
0718 }
0719 
0720 static inline void cec_ops_set_ext_timer(const struct cec_msg *msg,
0721                      __u8 *day,
0722                      __u8 *month,
0723                      __u8 *start_hr,
0724                      __u8 *start_min,
0725                      __u8 *duration_hr,
0726                      __u8 *duration_min,
0727                      __u8 *recording_seq,
0728                      __u8 *ext_src_spec,
0729                      __u8 *plug,
0730                      __u16 *phys_addr)
0731 {
0732     *day = msg->msg[2];
0733     *month = msg->msg[3];
0734     /* Hours and minutes are in BCD format */
0735     *start_hr = (msg->msg[4] >> 4) * 10 + (msg->msg[4] & 0xf);
0736     *start_min = (msg->msg[5] >> 4) * 10 + (msg->msg[5] & 0xf);
0737     *duration_hr = (msg->msg[6] >> 4) * 10 + (msg->msg[6] & 0xf);
0738     *duration_min = (msg->msg[7] >> 4) * 10 + (msg->msg[7] & 0xf);
0739     *recording_seq = msg->msg[8];
0740     *ext_src_spec = msg->msg[9];
0741     *plug = msg->msg[10];
0742     *phys_addr = (msg->msg[11] << 8) | msg->msg[12];
0743 }
0744 
0745 static inline void cec_msg_set_timer_program_title(struct cec_msg *msg,
0746                            const char *prog_title)
0747 {
0748     unsigned int len = strlen(prog_title);
0749 
0750     if (len > 14)
0751         len = 14;
0752     msg->len = 2 + len;
0753     msg->msg[1] = CEC_MSG_SET_TIMER_PROGRAM_TITLE;
0754     memcpy(msg->msg + 2, prog_title, len);
0755 }
0756 
0757 static inline void cec_ops_set_timer_program_title(const struct cec_msg *msg,
0758                            char *prog_title)
0759 {
0760     unsigned int len = msg->len > 2 ? msg->len - 2 : 0;
0761 
0762     if (len > 14)
0763         len = 14;
0764     memcpy(prog_title, msg->msg + 2, len);
0765     prog_title[len] = '\0';
0766 }
0767 
0768 /* System Information Feature */
0769 static inline void cec_msg_cec_version(struct cec_msg *msg, __u8 cec_version)
0770 {
0771     msg->len = 3;
0772     msg->msg[1] = CEC_MSG_CEC_VERSION;
0773     msg->msg[2] = cec_version;
0774 }
0775 
0776 static inline void cec_ops_cec_version(const struct cec_msg *msg,
0777                        __u8 *cec_version)
0778 {
0779     *cec_version = msg->msg[2];
0780 }
0781 
0782 static inline void cec_msg_get_cec_version(struct cec_msg *msg,
0783                        int reply)
0784 {
0785     msg->len = 2;
0786     msg->msg[1] = CEC_MSG_GET_CEC_VERSION;
0787     msg->reply = reply ? CEC_MSG_CEC_VERSION : 0;
0788 }
0789 
0790 static inline void cec_msg_report_physical_addr(struct cec_msg *msg,
0791                     __u16 phys_addr, __u8 prim_devtype)
0792 {
0793     msg->len = 5;
0794     msg->msg[0] |= 0xf; /* broadcast */
0795     msg->msg[1] = CEC_MSG_REPORT_PHYSICAL_ADDR;
0796     msg->msg[2] = phys_addr >> 8;
0797     msg->msg[3] = phys_addr & 0xff;
0798     msg->msg[4] = prim_devtype;
0799 }
0800 
0801 static inline void cec_ops_report_physical_addr(const struct cec_msg *msg,
0802                     __u16 *phys_addr, __u8 *prim_devtype)
0803 {
0804     *phys_addr = (msg->msg[2] << 8) | msg->msg[3];
0805     *prim_devtype = msg->msg[4];
0806 }
0807 
0808 static inline void cec_msg_give_physical_addr(struct cec_msg *msg,
0809                           int reply)
0810 {
0811     msg->len = 2;
0812     msg->msg[1] = CEC_MSG_GIVE_PHYSICAL_ADDR;
0813     msg->reply = reply ? CEC_MSG_REPORT_PHYSICAL_ADDR : 0;
0814 }
0815 
0816 static inline void cec_msg_set_menu_language(struct cec_msg *msg,
0817                          const char *language)
0818 {
0819     msg->len = 5;
0820     msg->msg[0] |= 0xf; /* broadcast */
0821     msg->msg[1] = CEC_MSG_SET_MENU_LANGUAGE;
0822     memcpy(msg->msg + 2, language, 3);
0823 }
0824 
0825 static inline void cec_ops_set_menu_language(const struct cec_msg *msg,
0826                          char *language)
0827 {
0828     memcpy(language, msg->msg + 2, 3);
0829     language[3] = '\0';
0830 }
0831 
0832 static inline void cec_msg_get_menu_language(struct cec_msg *msg,
0833                          int reply)
0834 {
0835     msg->len = 2;
0836     msg->msg[1] = CEC_MSG_GET_MENU_LANGUAGE;
0837     msg->reply = reply ? CEC_MSG_SET_MENU_LANGUAGE : 0;
0838 }
0839 
0840 /*
0841  * Assumes a single RC Profile byte and a single Device Features byte,
0842  * i.e. no extended features are supported by this helper function.
0843  *
0844  * As of CEC 2.0 no extended features are defined, should those be added
0845  * in the future, then this function needs to be adapted or a new function
0846  * should be added.
0847  */
0848 static inline void cec_msg_report_features(struct cec_msg *msg,
0849                 __u8 cec_version, __u8 all_device_types,
0850                 __u8 rc_profile, __u8 dev_features)
0851 {
0852     msg->len = 6;
0853     msg->msg[0] |= 0xf; /* broadcast */
0854     msg->msg[1] = CEC_MSG_REPORT_FEATURES;
0855     msg->msg[2] = cec_version;
0856     msg->msg[3] = all_device_types;
0857     msg->msg[4] = rc_profile;
0858     msg->msg[5] = dev_features;
0859 }
0860 
0861 static inline void cec_ops_report_features(const struct cec_msg *msg,
0862             __u8 *cec_version, __u8 *all_device_types,
0863             const __u8 **rc_profile, const __u8 **dev_features)
0864 {
0865     const __u8 *p = &msg->msg[4];
0866 
0867     *cec_version = msg->msg[2];
0868     *all_device_types = msg->msg[3];
0869     *rc_profile = p;
0870     *dev_features = NULL;
0871     while (p < &msg->msg[14] && (*p & CEC_OP_FEAT_EXT))
0872         p++;
0873     if (!(*p & CEC_OP_FEAT_EXT)) {
0874         *dev_features = p + 1;
0875         while (p < &msg->msg[15] && (*p & CEC_OP_FEAT_EXT))
0876             p++;
0877     }
0878     if (*p & CEC_OP_FEAT_EXT)
0879         *rc_profile = *dev_features = NULL;
0880 }
0881 
0882 static inline void cec_msg_give_features(struct cec_msg *msg,
0883                      int reply)
0884 {
0885     msg->len = 2;
0886     msg->msg[1] = CEC_MSG_GIVE_FEATURES;
0887     msg->reply = reply ? CEC_MSG_REPORT_FEATURES : 0;
0888 }
0889 
0890 /* Deck Control Feature */
0891 static inline void cec_msg_deck_control(struct cec_msg *msg,
0892                     __u8 deck_control_mode)
0893 {
0894     msg->len = 3;
0895     msg->msg[1] = CEC_MSG_DECK_CONTROL;
0896     msg->msg[2] = deck_control_mode;
0897 }
0898 
0899 static inline void cec_ops_deck_control(const struct cec_msg *msg,
0900                     __u8 *deck_control_mode)
0901 {
0902     *deck_control_mode = msg->msg[2];
0903 }
0904 
0905 static inline void cec_msg_deck_status(struct cec_msg *msg,
0906                        __u8 deck_info)
0907 {
0908     msg->len = 3;
0909     msg->msg[1] = CEC_MSG_DECK_STATUS;
0910     msg->msg[2] = deck_info;
0911 }
0912 
0913 static inline void cec_ops_deck_status(const struct cec_msg *msg,
0914                        __u8 *deck_info)
0915 {
0916     *deck_info = msg->msg[2];
0917 }
0918 
0919 static inline void cec_msg_give_deck_status(struct cec_msg *msg,
0920                         int reply,
0921                         __u8 status_req)
0922 {
0923     msg->len = 3;
0924     msg->msg[1] = CEC_MSG_GIVE_DECK_STATUS;
0925     msg->msg[2] = status_req;
0926     msg->reply = (reply && status_req != CEC_OP_STATUS_REQ_OFF) ?
0927                 CEC_MSG_DECK_STATUS : 0;
0928 }
0929 
0930 static inline void cec_ops_give_deck_status(const struct cec_msg *msg,
0931                         __u8 *status_req)
0932 {
0933     *status_req = msg->msg[2];
0934 }
0935 
0936 static inline void cec_msg_play(struct cec_msg *msg,
0937                 __u8 play_mode)
0938 {
0939     msg->len = 3;
0940     msg->msg[1] = CEC_MSG_PLAY;
0941     msg->msg[2] = play_mode;
0942 }
0943 
0944 static inline void cec_ops_play(const struct cec_msg *msg,
0945                 __u8 *play_mode)
0946 {
0947     *play_mode = msg->msg[2];
0948 }
0949 
0950 
0951 /* Tuner Control Feature */
0952 struct cec_op_tuner_device_info {
0953     __u8 rec_flag;
0954     __u8 tuner_display_info;
0955     __u8 is_analog;
0956     union {
0957         struct cec_op_digital_service_id digital;
0958         struct {
0959             __u8 ana_bcast_type;
0960             __u16 ana_freq;
0961             __u8 bcast_system;
0962         } analog;
0963     };
0964 };
0965 
0966 static inline void cec_msg_tuner_device_status_analog(struct cec_msg *msg,
0967                               __u8 rec_flag,
0968                               __u8 tuner_display_info,
0969                               __u8 ana_bcast_type,
0970                               __u16 ana_freq,
0971                               __u8 bcast_system)
0972 {
0973     msg->len = 7;
0974     msg->msg[1] = CEC_MSG_TUNER_DEVICE_STATUS;
0975     msg->msg[2] = (rec_flag << 7) | tuner_display_info;
0976     msg->msg[3] = ana_bcast_type;
0977     msg->msg[4] = ana_freq >> 8;
0978     msg->msg[5] = ana_freq & 0xff;
0979     msg->msg[6] = bcast_system;
0980 }
0981 
0982 static inline void cec_msg_tuner_device_status_digital(struct cec_msg *msg,
0983            __u8 rec_flag, __u8 tuner_display_info,
0984            const struct cec_op_digital_service_id *digital)
0985 {
0986     msg->len = 10;
0987     msg->msg[1] = CEC_MSG_TUNER_DEVICE_STATUS;
0988     msg->msg[2] = (rec_flag << 7) | tuner_display_info;
0989     cec_set_digital_service_id(msg->msg + 3, digital);
0990 }
0991 
0992 static inline void cec_msg_tuner_device_status(struct cec_msg *msg,
0993             const struct cec_op_tuner_device_info *tuner_dev_info)
0994 {
0995     if (tuner_dev_info->is_analog)
0996         cec_msg_tuner_device_status_analog(msg,
0997             tuner_dev_info->rec_flag,
0998             tuner_dev_info->tuner_display_info,
0999             tuner_dev_info->analog.ana_bcast_type,
1000             tuner_dev_info->analog.ana_freq,
1001             tuner_dev_info->analog.bcast_system);
1002     else
1003         cec_msg_tuner_device_status_digital(msg,
1004             tuner_dev_info->rec_flag,
1005             tuner_dev_info->tuner_display_info,
1006             &tuner_dev_info->digital);
1007 }
1008 
1009 static inline void cec_ops_tuner_device_status(const struct cec_msg *msg,
1010                 struct cec_op_tuner_device_info *tuner_dev_info)
1011 {
1012     tuner_dev_info->is_analog = msg->len < 10;
1013     tuner_dev_info->rec_flag = msg->msg[2] >> 7;
1014     tuner_dev_info->tuner_display_info = msg->msg[2] & 0x7f;
1015     if (tuner_dev_info->is_analog) {
1016         tuner_dev_info->analog.ana_bcast_type = msg->msg[3];
1017         tuner_dev_info->analog.ana_freq = (msg->msg[4] << 8) | msg->msg[5];
1018         tuner_dev_info->analog.bcast_system = msg->msg[6];
1019         return;
1020     }
1021     cec_get_digital_service_id(msg->msg + 3, &tuner_dev_info->digital);
1022 }
1023 
1024 static inline void cec_msg_give_tuner_device_status(struct cec_msg *msg,
1025                             int reply,
1026                             __u8 status_req)
1027 {
1028     msg->len = 3;
1029     msg->msg[1] = CEC_MSG_GIVE_TUNER_DEVICE_STATUS;
1030     msg->msg[2] = status_req;
1031     msg->reply = (reply && status_req != CEC_OP_STATUS_REQ_OFF) ?
1032                 CEC_MSG_TUNER_DEVICE_STATUS : 0;
1033 }
1034 
1035 static inline void cec_ops_give_tuner_device_status(const struct cec_msg *msg,
1036                             __u8 *status_req)
1037 {
1038     *status_req = msg->msg[2];
1039 }
1040 
1041 static inline void cec_msg_select_analogue_service(struct cec_msg *msg,
1042                            __u8 ana_bcast_type,
1043                            __u16 ana_freq,
1044                            __u8 bcast_system)
1045 {
1046     msg->len = 6;
1047     msg->msg[1] = CEC_MSG_SELECT_ANALOGUE_SERVICE;
1048     msg->msg[2] = ana_bcast_type;
1049     msg->msg[3] = ana_freq >> 8;
1050     msg->msg[4] = ana_freq & 0xff;
1051     msg->msg[5] = bcast_system;
1052 }
1053 
1054 static inline void cec_ops_select_analogue_service(const struct cec_msg *msg,
1055                            __u8 *ana_bcast_type,
1056                            __u16 *ana_freq,
1057                            __u8 *bcast_system)
1058 {
1059     *ana_bcast_type = msg->msg[2];
1060     *ana_freq = (msg->msg[3] << 8) | msg->msg[4];
1061     *bcast_system = msg->msg[5];
1062 }
1063 
1064 static inline void cec_msg_select_digital_service(struct cec_msg *msg,
1065                 const struct cec_op_digital_service_id *digital)
1066 {
1067     msg->len = 9;
1068     msg->msg[1] = CEC_MSG_SELECT_DIGITAL_SERVICE;
1069     cec_set_digital_service_id(msg->msg + 2, digital);
1070 }
1071 
1072 static inline void cec_ops_select_digital_service(const struct cec_msg *msg,
1073                 struct cec_op_digital_service_id *digital)
1074 {
1075     cec_get_digital_service_id(msg->msg + 2, digital);
1076 }
1077 
1078 static inline void cec_msg_tuner_step_decrement(struct cec_msg *msg)
1079 {
1080     msg->len = 2;
1081     msg->msg[1] = CEC_MSG_TUNER_STEP_DECREMENT;
1082 }
1083 
1084 static inline void cec_msg_tuner_step_increment(struct cec_msg *msg)
1085 {
1086     msg->len = 2;
1087     msg->msg[1] = CEC_MSG_TUNER_STEP_INCREMENT;
1088 }
1089 
1090 
1091 /* Vendor Specific Commands Feature */
1092 static inline void cec_msg_device_vendor_id(struct cec_msg *msg, __u32 vendor_id)
1093 {
1094     msg->len = 5;
1095     msg->msg[0] |= 0xf; /* broadcast */
1096     msg->msg[1] = CEC_MSG_DEVICE_VENDOR_ID;
1097     msg->msg[2] = vendor_id >> 16;
1098     msg->msg[3] = (vendor_id >> 8) & 0xff;
1099     msg->msg[4] = vendor_id & 0xff;
1100 }
1101 
1102 static inline void cec_ops_device_vendor_id(const struct cec_msg *msg,
1103                         __u32 *vendor_id)
1104 {
1105     *vendor_id = (msg->msg[2] << 16) | (msg->msg[3] << 8) | msg->msg[4];
1106 }
1107 
1108 static inline void cec_msg_give_device_vendor_id(struct cec_msg *msg,
1109                          int reply)
1110 {
1111     msg->len = 2;
1112     msg->msg[1] = CEC_MSG_GIVE_DEVICE_VENDOR_ID;
1113     msg->reply = reply ? CEC_MSG_DEVICE_VENDOR_ID : 0;
1114 }
1115 
1116 static inline void cec_msg_vendor_command(struct cec_msg *msg,
1117                       __u8 size, const __u8 *vendor_cmd)
1118 {
1119     if (size > 14)
1120         size = 14;
1121     msg->len = 2 + size;
1122     msg->msg[1] = CEC_MSG_VENDOR_COMMAND;
1123     memcpy(msg->msg + 2, vendor_cmd, size);
1124 }
1125 
1126 static inline void cec_ops_vendor_command(const struct cec_msg *msg,
1127                       __u8 *size,
1128                       const __u8 **vendor_cmd)
1129 {
1130     *size = msg->len - 2;
1131 
1132     if (*size > 14)
1133         *size = 14;
1134     *vendor_cmd = msg->msg + 2;
1135 }
1136 
1137 static inline void cec_msg_vendor_command_with_id(struct cec_msg *msg,
1138                           __u32 vendor_id, __u8 size,
1139                           const __u8 *vendor_cmd)
1140 {
1141     if (size > 11)
1142         size = 11;
1143     msg->len = 5 + size;
1144     msg->msg[1] = CEC_MSG_VENDOR_COMMAND_WITH_ID;
1145     msg->msg[2] = vendor_id >> 16;
1146     msg->msg[3] = (vendor_id >> 8) & 0xff;
1147     msg->msg[4] = vendor_id & 0xff;
1148     memcpy(msg->msg + 5, vendor_cmd, size);
1149 }
1150 
1151 static inline void cec_ops_vendor_command_with_id(const struct cec_msg *msg,
1152                           __u32 *vendor_id,  __u8 *size,
1153                           const __u8 **vendor_cmd)
1154 {
1155     *size = msg->len - 5;
1156 
1157     if (*size > 11)
1158         *size = 11;
1159     *vendor_id = (msg->msg[2] << 16) | (msg->msg[3] << 8) | msg->msg[4];
1160     *vendor_cmd = msg->msg + 5;
1161 }
1162 
1163 static inline void cec_msg_vendor_remote_button_down(struct cec_msg *msg,
1164                              __u8 size,
1165                              const __u8 *rc_code)
1166 {
1167     if (size > 14)
1168         size = 14;
1169     msg->len = 2 + size;
1170     msg->msg[1] = CEC_MSG_VENDOR_REMOTE_BUTTON_DOWN;
1171     memcpy(msg->msg + 2, rc_code, size);
1172 }
1173 
1174 static inline void cec_ops_vendor_remote_button_down(const struct cec_msg *msg,
1175                              __u8 *size,
1176                              const __u8 **rc_code)
1177 {
1178     *size = msg->len - 2;
1179 
1180     if (*size > 14)
1181         *size = 14;
1182     *rc_code = msg->msg + 2;
1183 }
1184 
1185 static inline void cec_msg_vendor_remote_button_up(struct cec_msg *msg)
1186 {
1187     msg->len = 2;
1188     msg->msg[1] = CEC_MSG_VENDOR_REMOTE_BUTTON_UP;
1189 }
1190 
1191 
1192 /* OSD Display Feature */
1193 static inline void cec_msg_set_osd_string(struct cec_msg *msg,
1194                       __u8 disp_ctl,
1195                       const char *osd)
1196 {
1197     unsigned int len = strlen(osd);
1198 
1199     if (len > 13)
1200         len = 13;
1201     msg->len = 3 + len;
1202     msg->msg[1] = CEC_MSG_SET_OSD_STRING;
1203     msg->msg[2] = disp_ctl;
1204     memcpy(msg->msg + 3, osd, len);
1205 }
1206 
1207 static inline void cec_ops_set_osd_string(const struct cec_msg *msg,
1208                       __u8 *disp_ctl,
1209                       char *osd)
1210 {
1211     unsigned int len = msg->len > 3 ? msg->len - 3 : 0;
1212 
1213     *disp_ctl = msg->msg[2];
1214     if (len > 13)
1215         len = 13;
1216     memcpy(osd, msg->msg + 3, len);
1217     osd[len] = '\0';
1218 }
1219 
1220 
1221 /* Device OSD Transfer Feature */
1222 static inline void cec_msg_set_osd_name(struct cec_msg *msg, const char *name)
1223 {
1224     unsigned int len = strlen(name);
1225 
1226     if (len > 14)
1227         len = 14;
1228     msg->len = 2 + len;
1229     msg->msg[1] = CEC_MSG_SET_OSD_NAME;
1230     memcpy(msg->msg + 2, name, len);
1231 }
1232 
1233 static inline void cec_ops_set_osd_name(const struct cec_msg *msg,
1234                     char *name)
1235 {
1236     unsigned int len = msg->len > 2 ? msg->len - 2 : 0;
1237 
1238     if (len > 14)
1239         len = 14;
1240     memcpy(name, msg->msg + 2, len);
1241     name[len] = '\0';
1242 }
1243 
1244 static inline void cec_msg_give_osd_name(struct cec_msg *msg,
1245                      int reply)
1246 {
1247     msg->len = 2;
1248     msg->msg[1] = CEC_MSG_GIVE_OSD_NAME;
1249     msg->reply = reply ? CEC_MSG_SET_OSD_NAME : 0;
1250 }
1251 
1252 
1253 /* Device Menu Control Feature */
1254 static inline void cec_msg_menu_status(struct cec_msg *msg,
1255                        __u8 menu_state)
1256 {
1257     msg->len = 3;
1258     msg->msg[1] = CEC_MSG_MENU_STATUS;
1259     msg->msg[2] = menu_state;
1260 }
1261 
1262 static inline void cec_ops_menu_status(const struct cec_msg *msg,
1263                        __u8 *menu_state)
1264 {
1265     *menu_state = msg->msg[2];
1266 }
1267 
1268 static inline void cec_msg_menu_request(struct cec_msg *msg,
1269                     int reply,
1270                     __u8 menu_req)
1271 {
1272     msg->len = 3;
1273     msg->msg[1] = CEC_MSG_MENU_REQUEST;
1274     msg->msg[2] = menu_req;
1275     msg->reply = reply ? CEC_MSG_MENU_STATUS : 0;
1276 }
1277 
1278 static inline void cec_ops_menu_request(const struct cec_msg *msg,
1279                     __u8 *menu_req)
1280 {
1281     *menu_req = msg->msg[2];
1282 }
1283 
1284 struct cec_op_ui_command {
1285     __u8 ui_cmd;
1286     __u8 has_opt_arg;
1287     union {
1288         struct cec_op_channel_data channel_identifier;
1289         __u8 ui_broadcast_type;
1290         __u8 ui_sound_presentation_control;
1291         __u8 play_mode;
1292         __u8 ui_function_media;
1293         __u8 ui_function_select_av_input;
1294         __u8 ui_function_select_audio_input;
1295     };
1296 };
1297 
1298 static inline void cec_msg_user_control_pressed(struct cec_msg *msg,
1299                     const struct cec_op_ui_command *ui_cmd)
1300 {
1301     msg->len = 3;
1302     msg->msg[1] = CEC_MSG_USER_CONTROL_PRESSED;
1303     msg->msg[2] = ui_cmd->ui_cmd;
1304     if (!ui_cmd->has_opt_arg)
1305         return;
1306     switch (ui_cmd->ui_cmd) {
1307     case CEC_OP_UI_CMD_SELECT_BROADCAST_TYPE:
1308     case CEC_OP_UI_CMD_SELECT_SOUND_PRESENTATION:
1309     case CEC_OP_UI_CMD_PLAY_FUNCTION:
1310     case CEC_OP_UI_CMD_SELECT_MEDIA_FUNCTION:
1311     case CEC_OP_UI_CMD_SELECT_AV_INPUT_FUNCTION:
1312     case CEC_OP_UI_CMD_SELECT_AUDIO_INPUT_FUNCTION:
1313         /* The optional operand is one byte for all these ui commands */
1314         msg->len++;
1315         msg->msg[3] = ui_cmd->play_mode;
1316         break;
1317     case CEC_OP_UI_CMD_TUNE_FUNCTION:
1318         msg->len += 4;
1319         msg->msg[3] = (ui_cmd->channel_identifier.channel_number_fmt << 2) |
1320                   (ui_cmd->channel_identifier.major >> 8);
1321         msg->msg[4] = ui_cmd->channel_identifier.major & 0xff;
1322         msg->msg[5] = ui_cmd->channel_identifier.minor >> 8;
1323         msg->msg[6] = ui_cmd->channel_identifier.minor & 0xff;
1324         break;
1325     }
1326 }
1327 
1328 static inline void cec_ops_user_control_pressed(const struct cec_msg *msg,
1329                         struct cec_op_ui_command *ui_cmd)
1330 {
1331     ui_cmd->ui_cmd = msg->msg[2];
1332     ui_cmd->has_opt_arg = 0;
1333     if (msg->len == 3)
1334         return;
1335     switch (ui_cmd->ui_cmd) {
1336     case CEC_OP_UI_CMD_SELECT_BROADCAST_TYPE:
1337     case CEC_OP_UI_CMD_SELECT_SOUND_PRESENTATION:
1338     case CEC_OP_UI_CMD_PLAY_FUNCTION:
1339     case CEC_OP_UI_CMD_SELECT_MEDIA_FUNCTION:
1340     case CEC_OP_UI_CMD_SELECT_AV_INPUT_FUNCTION:
1341     case CEC_OP_UI_CMD_SELECT_AUDIO_INPUT_FUNCTION:
1342         /* The optional operand is one byte for all these ui commands */
1343         ui_cmd->play_mode = msg->msg[3];
1344         ui_cmd->has_opt_arg = 1;
1345         break;
1346     case CEC_OP_UI_CMD_TUNE_FUNCTION:
1347         if (msg->len < 7)
1348             break;
1349         ui_cmd->has_opt_arg = 1;
1350         ui_cmd->channel_identifier.channel_number_fmt = msg->msg[3] >> 2;
1351         ui_cmd->channel_identifier.major = ((msg->msg[3] & 3) << 6) | msg->msg[4];
1352         ui_cmd->channel_identifier.minor = (msg->msg[5] << 8) | msg->msg[6];
1353         break;
1354     }
1355 }
1356 
1357 static inline void cec_msg_user_control_released(struct cec_msg *msg)
1358 {
1359     msg->len = 2;
1360     msg->msg[1] = CEC_MSG_USER_CONTROL_RELEASED;
1361 }
1362 
1363 /* Remote Control Passthrough Feature */
1364 
1365 /* Power Status Feature */
1366 static inline void cec_msg_report_power_status(struct cec_msg *msg,
1367                            __u8 pwr_state)
1368 {
1369     msg->len = 3;
1370     msg->msg[1] = CEC_MSG_REPORT_POWER_STATUS;
1371     msg->msg[2] = pwr_state;
1372 }
1373 
1374 static inline void cec_ops_report_power_status(const struct cec_msg *msg,
1375                            __u8 *pwr_state)
1376 {
1377     *pwr_state = msg->msg[2];
1378 }
1379 
1380 static inline void cec_msg_give_device_power_status(struct cec_msg *msg,
1381                             int reply)
1382 {
1383     msg->len = 2;
1384     msg->msg[1] = CEC_MSG_GIVE_DEVICE_POWER_STATUS;
1385     msg->reply = reply ? CEC_MSG_REPORT_POWER_STATUS : 0;
1386 }
1387 
1388 /* General Protocol Messages */
1389 static inline void cec_msg_feature_abort(struct cec_msg *msg,
1390                      __u8 abort_msg, __u8 reason)
1391 {
1392     msg->len = 4;
1393     msg->msg[1] = CEC_MSG_FEATURE_ABORT;
1394     msg->msg[2] = abort_msg;
1395     msg->msg[3] = reason;
1396 }
1397 
1398 static inline void cec_ops_feature_abort(const struct cec_msg *msg,
1399                      __u8 *abort_msg, __u8 *reason)
1400 {
1401     *abort_msg = msg->msg[2];
1402     *reason = msg->msg[3];
1403 }
1404 
1405 /* This changes the current message into a feature abort message */
1406 static inline void cec_msg_reply_feature_abort(struct cec_msg *msg, __u8 reason)
1407 {
1408     cec_msg_set_reply_to(msg, msg);
1409     msg->len = 4;
1410     msg->msg[2] = msg->msg[1];
1411     msg->msg[3] = reason;
1412     msg->msg[1] = CEC_MSG_FEATURE_ABORT;
1413 }
1414 
1415 static inline void cec_msg_abort(struct cec_msg *msg)
1416 {
1417     msg->len = 2;
1418     msg->msg[1] = CEC_MSG_ABORT;
1419 }
1420 
1421 
1422 /* System Audio Control Feature */
1423 static inline void cec_msg_report_audio_status(struct cec_msg *msg,
1424                            __u8 aud_mute_status,
1425                            __u8 aud_vol_status)
1426 {
1427     msg->len = 3;
1428     msg->msg[1] = CEC_MSG_REPORT_AUDIO_STATUS;
1429     msg->msg[2] = (aud_mute_status << 7) | (aud_vol_status & 0x7f);
1430 }
1431 
1432 static inline void cec_ops_report_audio_status(const struct cec_msg *msg,
1433                            __u8 *aud_mute_status,
1434                            __u8 *aud_vol_status)
1435 {
1436     *aud_mute_status = msg->msg[2] >> 7;
1437     *aud_vol_status = msg->msg[2] & 0x7f;
1438 }
1439 
1440 static inline void cec_msg_give_audio_status(struct cec_msg *msg,
1441                          int reply)
1442 {
1443     msg->len = 2;
1444     msg->msg[1] = CEC_MSG_GIVE_AUDIO_STATUS;
1445     msg->reply = reply ? CEC_MSG_REPORT_AUDIO_STATUS : 0;
1446 }
1447 
1448 static inline void cec_msg_set_system_audio_mode(struct cec_msg *msg,
1449                          __u8 sys_aud_status)
1450 {
1451     msg->len = 3;
1452     msg->msg[1] = CEC_MSG_SET_SYSTEM_AUDIO_MODE;
1453     msg->msg[2] = sys_aud_status;
1454 }
1455 
1456 static inline void cec_ops_set_system_audio_mode(const struct cec_msg *msg,
1457                          __u8 *sys_aud_status)
1458 {
1459     *sys_aud_status = msg->msg[2];
1460 }
1461 
1462 static inline void cec_msg_system_audio_mode_request(struct cec_msg *msg,
1463                              int reply,
1464                              __u16 phys_addr)
1465 {
1466     msg->len = phys_addr == 0xffff ? 2 : 4;
1467     msg->msg[1] = CEC_MSG_SYSTEM_AUDIO_MODE_REQUEST;
1468     msg->msg[2] = phys_addr >> 8;
1469     msg->msg[3] = phys_addr & 0xff;
1470     msg->reply = reply ? CEC_MSG_SET_SYSTEM_AUDIO_MODE : 0;
1471 
1472 }
1473 
1474 static inline void cec_ops_system_audio_mode_request(const struct cec_msg *msg,
1475                              __u16 *phys_addr)
1476 {
1477     if (msg->len < 4)
1478         *phys_addr = 0xffff;
1479     else
1480         *phys_addr = (msg->msg[2] << 8) | msg->msg[3];
1481 }
1482 
1483 static inline void cec_msg_system_audio_mode_status(struct cec_msg *msg,
1484                             __u8 sys_aud_status)
1485 {
1486     msg->len = 3;
1487     msg->msg[1] = CEC_MSG_SYSTEM_AUDIO_MODE_STATUS;
1488     msg->msg[2] = sys_aud_status;
1489 }
1490 
1491 static inline void cec_ops_system_audio_mode_status(const struct cec_msg *msg,
1492                             __u8 *sys_aud_status)
1493 {
1494     *sys_aud_status = msg->msg[2];
1495 }
1496 
1497 static inline void cec_msg_give_system_audio_mode_status(struct cec_msg *msg,
1498                              int reply)
1499 {
1500     msg->len = 2;
1501     msg->msg[1] = CEC_MSG_GIVE_SYSTEM_AUDIO_MODE_STATUS;
1502     msg->reply = reply ? CEC_MSG_SYSTEM_AUDIO_MODE_STATUS : 0;
1503 }
1504 
1505 static inline void cec_msg_report_short_audio_descriptor(struct cec_msg *msg,
1506                     __u8 num_descriptors,
1507                     const __u32 *descriptors)
1508 {
1509     unsigned int i;
1510 
1511     if (num_descriptors > 4)
1512         num_descriptors = 4;
1513     msg->len = 2 + num_descriptors * 3;
1514     msg->msg[1] = CEC_MSG_REPORT_SHORT_AUDIO_DESCRIPTOR;
1515     for (i = 0; i < num_descriptors; i++) {
1516         msg->msg[2 + i * 3] = (descriptors[i] >> 16) & 0xff;
1517         msg->msg[3 + i * 3] = (descriptors[i] >> 8) & 0xff;
1518         msg->msg[4 + i * 3] = descriptors[i] & 0xff;
1519     }
1520 }
1521 
1522 static inline void cec_ops_report_short_audio_descriptor(const struct cec_msg *msg,
1523                              __u8 *num_descriptors,
1524                              __u32 *descriptors)
1525 {
1526     unsigned int i;
1527 
1528     *num_descriptors = (msg->len - 2) / 3;
1529     if (*num_descriptors > 4)
1530         *num_descriptors = 4;
1531     for (i = 0; i < *num_descriptors; i++)
1532         descriptors[i] = (msg->msg[2 + i * 3] << 16) |
1533             (msg->msg[3 + i * 3] << 8) |
1534             msg->msg[4 + i * 3];
1535 }
1536 
1537 static inline void cec_msg_request_short_audio_descriptor(struct cec_msg *msg,
1538                     int reply,
1539                     __u8 num_descriptors,
1540                     const __u8 *audio_format_id,
1541                     const __u8 *audio_format_code)
1542 {
1543     unsigned int i;
1544 
1545     if (num_descriptors > 4)
1546         num_descriptors = 4;
1547     msg->len = 2 + num_descriptors;
1548     msg->msg[1] = CEC_MSG_REQUEST_SHORT_AUDIO_DESCRIPTOR;
1549     msg->reply = reply ? CEC_MSG_REPORT_SHORT_AUDIO_DESCRIPTOR : 0;
1550     for (i = 0; i < num_descriptors; i++)
1551         msg->msg[2 + i] = (audio_format_id[i] << 6) |
1552                   (audio_format_code[i] & 0x3f);
1553 }
1554 
1555 static inline void cec_ops_request_short_audio_descriptor(const struct cec_msg *msg,
1556                     __u8 *num_descriptors,
1557                     __u8 *audio_format_id,
1558                     __u8 *audio_format_code)
1559 {
1560     unsigned int i;
1561 
1562     *num_descriptors = msg->len - 2;
1563     if (*num_descriptors > 4)
1564         *num_descriptors = 4;
1565     for (i = 0; i < *num_descriptors; i++) {
1566         audio_format_id[i] = msg->msg[2 + i] >> 6;
1567         audio_format_code[i] = msg->msg[2 + i] & 0x3f;
1568     }
1569 }
1570 
1571 
1572 /* Audio Rate Control Feature */
1573 static inline void cec_msg_set_audio_rate(struct cec_msg *msg,
1574                       __u8 audio_rate)
1575 {
1576     msg->len = 3;
1577     msg->msg[1] = CEC_MSG_SET_AUDIO_RATE;
1578     msg->msg[2] = audio_rate;
1579 }
1580 
1581 static inline void cec_ops_set_audio_rate(const struct cec_msg *msg,
1582                       __u8 *audio_rate)
1583 {
1584     *audio_rate = msg->msg[2];
1585 }
1586 
1587 
1588 /* Audio Return Channel Control Feature */
1589 static inline void cec_msg_report_arc_initiated(struct cec_msg *msg)
1590 {
1591     msg->len = 2;
1592     msg->msg[1] = CEC_MSG_REPORT_ARC_INITIATED;
1593 }
1594 
1595 static inline void cec_msg_initiate_arc(struct cec_msg *msg,
1596                     int reply)
1597 {
1598     msg->len = 2;
1599     msg->msg[1] = CEC_MSG_INITIATE_ARC;
1600     msg->reply = reply ? CEC_MSG_REPORT_ARC_INITIATED : 0;
1601 }
1602 
1603 static inline void cec_msg_request_arc_initiation(struct cec_msg *msg,
1604                           int reply)
1605 {
1606     msg->len = 2;
1607     msg->msg[1] = CEC_MSG_REQUEST_ARC_INITIATION;
1608     msg->reply = reply ? CEC_MSG_INITIATE_ARC : 0;
1609 }
1610 
1611 static inline void cec_msg_report_arc_terminated(struct cec_msg *msg)
1612 {
1613     msg->len = 2;
1614     msg->msg[1] = CEC_MSG_REPORT_ARC_TERMINATED;
1615 }
1616 
1617 static inline void cec_msg_terminate_arc(struct cec_msg *msg,
1618                      int reply)
1619 {
1620     msg->len = 2;
1621     msg->msg[1] = CEC_MSG_TERMINATE_ARC;
1622     msg->reply = reply ? CEC_MSG_REPORT_ARC_TERMINATED : 0;
1623 }
1624 
1625 static inline void cec_msg_request_arc_termination(struct cec_msg *msg,
1626                            int reply)
1627 {
1628     msg->len = 2;
1629     msg->msg[1] = CEC_MSG_REQUEST_ARC_TERMINATION;
1630     msg->reply = reply ? CEC_MSG_TERMINATE_ARC : 0;
1631 }
1632 
1633 
1634 /* Dynamic Audio Lipsync Feature */
1635 /* Only for CEC 2.0 and up */
1636 static inline void cec_msg_report_current_latency(struct cec_msg *msg,
1637                           __u16 phys_addr,
1638                           __u8 video_latency,
1639                           __u8 low_latency_mode,
1640                           __u8 audio_out_compensated,
1641                           __u8 audio_out_delay)
1642 {
1643     msg->len = 6;
1644     msg->msg[0] |= 0xf; /* broadcast */
1645     msg->msg[1] = CEC_MSG_REPORT_CURRENT_LATENCY;
1646     msg->msg[2] = phys_addr >> 8;
1647     msg->msg[3] = phys_addr & 0xff;
1648     msg->msg[4] = video_latency;
1649     msg->msg[5] = (low_latency_mode << 2) | audio_out_compensated;
1650     if (audio_out_compensated == 3)
1651         msg->msg[msg->len++] = audio_out_delay;
1652 }
1653 
1654 static inline void cec_ops_report_current_latency(const struct cec_msg *msg,
1655                           __u16 *phys_addr,
1656                           __u8 *video_latency,
1657                           __u8 *low_latency_mode,
1658                           __u8 *audio_out_compensated,
1659                           __u8 *audio_out_delay)
1660 {
1661     *phys_addr = (msg->msg[2] << 8) | msg->msg[3];
1662     *video_latency = msg->msg[4];
1663     *low_latency_mode = (msg->msg[5] >> 2) & 1;
1664     *audio_out_compensated = msg->msg[5] & 3;
1665     if (*audio_out_compensated == 3 && msg->len >= 7)
1666         *audio_out_delay = msg->msg[6];
1667     else
1668         *audio_out_delay = 1;
1669 }
1670 
1671 static inline void cec_msg_request_current_latency(struct cec_msg *msg,
1672                            int reply,
1673                            __u16 phys_addr)
1674 {
1675     msg->len = 4;
1676     msg->msg[0] |= 0xf; /* broadcast */
1677     msg->msg[1] = CEC_MSG_REQUEST_CURRENT_LATENCY;
1678     msg->msg[2] = phys_addr >> 8;
1679     msg->msg[3] = phys_addr & 0xff;
1680     msg->reply = reply ? CEC_MSG_REPORT_CURRENT_LATENCY : 0;
1681 }
1682 
1683 static inline void cec_ops_request_current_latency(const struct cec_msg *msg,
1684                            __u16 *phys_addr)
1685 {
1686     *phys_addr = (msg->msg[2] << 8) | msg->msg[3];
1687 }
1688 
1689 
1690 /* Capability Discovery and Control Feature */
1691 static inline void cec_msg_cdc_hec_inquire_state(struct cec_msg *msg,
1692                          __u16 phys_addr1,
1693                          __u16 phys_addr2)
1694 {
1695     msg->len = 9;
1696     msg->msg[0] |= 0xf; /* broadcast */
1697     msg->msg[1] = CEC_MSG_CDC_MESSAGE;
1698     /* msg[2] and msg[3] (phys_addr) are filled in by the CEC framework */
1699     msg->msg[4] = CEC_MSG_CDC_HEC_INQUIRE_STATE;
1700     msg->msg[5] = phys_addr1 >> 8;
1701     msg->msg[6] = phys_addr1 & 0xff;
1702     msg->msg[7] = phys_addr2 >> 8;
1703     msg->msg[8] = phys_addr2 & 0xff;
1704 }
1705 
1706 static inline void cec_ops_cdc_hec_inquire_state(const struct cec_msg *msg,
1707                          __u16 *phys_addr,
1708                          __u16 *phys_addr1,
1709                          __u16 *phys_addr2)
1710 {
1711     *phys_addr = (msg->msg[2] << 8) | msg->msg[3];
1712     *phys_addr1 = (msg->msg[5] << 8) | msg->msg[6];
1713     *phys_addr2 = (msg->msg[7] << 8) | msg->msg[8];
1714 }
1715 
1716 static inline void cec_msg_cdc_hec_report_state(struct cec_msg *msg,
1717                         __u16 target_phys_addr,
1718                         __u8 hec_func_state,
1719                         __u8 host_func_state,
1720                         __u8 enc_func_state,
1721                         __u8 cdc_errcode,
1722                         __u8 has_field,
1723                         __u16 hec_field)
1724 {
1725     msg->len = has_field ? 10 : 8;
1726     msg->msg[0] |= 0xf; /* broadcast */
1727     msg->msg[1] = CEC_MSG_CDC_MESSAGE;
1728     /* msg[2] and msg[3] (phys_addr) are filled in by the CEC framework */
1729     msg->msg[4] = CEC_MSG_CDC_HEC_REPORT_STATE;
1730     msg->msg[5] = target_phys_addr >> 8;
1731     msg->msg[6] = target_phys_addr & 0xff;
1732     msg->msg[7] = (hec_func_state << 6) |
1733               (host_func_state << 4) |
1734               (enc_func_state << 2) |
1735               cdc_errcode;
1736     if (has_field) {
1737         msg->msg[8] = hec_field >> 8;
1738         msg->msg[9] = hec_field & 0xff;
1739     }
1740 }
1741 
1742 static inline void cec_ops_cdc_hec_report_state(const struct cec_msg *msg,
1743                         __u16 *phys_addr,
1744                         __u16 *target_phys_addr,
1745                         __u8 *hec_func_state,
1746                         __u8 *host_func_state,
1747                         __u8 *enc_func_state,
1748                         __u8 *cdc_errcode,
1749                         __u8 *has_field,
1750                         __u16 *hec_field)
1751 {
1752     *phys_addr = (msg->msg[2] << 8) | msg->msg[3];
1753     *target_phys_addr = (msg->msg[5] << 8) | msg->msg[6];
1754     *hec_func_state = msg->msg[7] >> 6;
1755     *host_func_state = (msg->msg[7] >> 4) & 3;
1756     *enc_func_state = (msg->msg[7] >> 4) & 3;
1757     *cdc_errcode = msg->msg[7] & 3;
1758     *has_field = msg->len >= 10;
1759     *hec_field = *has_field ? ((msg->msg[8] << 8) | msg->msg[9]) : 0;
1760 }
1761 
1762 static inline void cec_msg_cdc_hec_set_state(struct cec_msg *msg,
1763                          __u16 phys_addr1,
1764                          __u16 phys_addr2,
1765                          __u8 hec_set_state,
1766                          __u16 phys_addr3,
1767                          __u16 phys_addr4,
1768                          __u16 phys_addr5)
1769 {
1770     msg->len = 10;
1771     msg->msg[0] |= 0xf; /* broadcast */
1772     msg->msg[1] = CEC_MSG_CDC_MESSAGE;
1773     /* msg[2] and msg[3] (phys_addr) are filled in by the CEC framework */
1774     msg->msg[4] = CEC_MSG_CDC_HEC_INQUIRE_STATE;
1775     msg->msg[5] = phys_addr1 >> 8;
1776     msg->msg[6] = phys_addr1 & 0xff;
1777     msg->msg[7] = phys_addr2 >> 8;
1778     msg->msg[8] = phys_addr2 & 0xff;
1779     msg->msg[9] = hec_set_state;
1780     if (phys_addr3 != CEC_PHYS_ADDR_INVALID) {
1781         msg->msg[msg->len++] = phys_addr3 >> 8;
1782         msg->msg[msg->len++] = phys_addr3 & 0xff;
1783         if (phys_addr4 != CEC_PHYS_ADDR_INVALID) {
1784             msg->msg[msg->len++] = phys_addr4 >> 8;
1785             msg->msg[msg->len++] = phys_addr4 & 0xff;
1786             if (phys_addr5 != CEC_PHYS_ADDR_INVALID) {
1787                 msg->msg[msg->len++] = phys_addr5 >> 8;
1788                 msg->msg[msg->len++] = phys_addr5 & 0xff;
1789             }
1790         }
1791     }
1792 }
1793 
1794 static inline void cec_ops_cdc_hec_set_state(const struct cec_msg *msg,
1795                          __u16 *phys_addr,
1796                          __u16 *phys_addr1,
1797                          __u16 *phys_addr2,
1798                          __u8 *hec_set_state,
1799                          __u16 *phys_addr3,
1800                          __u16 *phys_addr4,
1801                          __u16 *phys_addr5)
1802 {
1803     *phys_addr = (msg->msg[2] << 8) | msg->msg[3];
1804     *phys_addr1 = (msg->msg[5] << 8) | msg->msg[6];
1805     *phys_addr2 = (msg->msg[7] << 8) | msg->msg[8];
1806     *hec_set_state = msg->msg[9];
1807     *phys_addr3 = *phys_addr4 = *phys_addr5 = CEC_PHYS_ADDR_INVALID;
1808     if (msg->len >= 12)
1809         *phys_addr3 = (msg->msg[10] << 8) | msg->msg[11];
1810     if (msg->len >= 14)
1811         *phys_addr4 = (msg->msg[12] << 8) | msg->msg[13];
1812     if (msg->len >= 16)
1813         *phys_addr5 = (msg->msg[14] << 8) | msg->msg[15];
1814 }
1815 
1816 static inline void cec_msg_cdc_hec_set_state_adjacent(struct cec_msg *msg,
1817                               __u16 phys_addr1,
1818                               __u8 hec_set_state)
1819 {
1820     msg->len = 8;
1821     msg->msg[0] |= 0xf; /* broadcast */
1822     msg->msg[1] = CEC_MSG_CDC_MESSAGE;
1823     /* msg[2] and msg[3] (phys_addr) are filled in by the CEC framework */
1824     msg->msg[4] = CEC_MSG_CDC_HEC_SET_STATE_ADJACENT;
1825     msg->msg[5] = phys_addr1 >> 8;
1826     msg->msg[6] = phys_addr1 & 0xff;
1827     msg->msg[7] = hec_set_state;
1828 }
1829 
1830 static inline void cec_ops_cdc_hec_set_state_adjacent(const struct cec_msg *msg,
1831                               __u16 *phys_addr,
1832                               __u16 *phys_addr1,
1833                               __u8 *hec_set_state)
1834 {
1835     *phys_addr = (msg->msg[2] << 8) | msg->msg[3];
1836     *phys_addr1 = (msg->msg[5] << 8) | msg->msg[6];
1837     *hec_set_state = msg->msg[7];
1838 }
1839 
1840 static inline void cec_msg_cdc_hec_request_deactivation(struct cec_msg *msg,
1841                             __u16 phys_addr1,
1842                             __u16 phys_addr2,
1843                             __u16 phys_addr3)
1844 {
1845     msg->len = 11;
1846     msg->msg[0] |= 0xf; /* broadcast */
1847     msg->msg[1] = CEC_MSG_CDC_MESSAGE;
1848     /* msg[2] and msg[3] (phys_addr) are filled in by the CEC framework */
1849     msg->msg[4] = CEC_MSG_CDC_HEC_REQUEST_DEACTIVATION;
1850     msg->msg[5] = phys_addr1 >> 8;
1851     msg->msg[6] = phys_addr1 & 0xff;
1852     msg->msg[7] = phys_addr2 >> 8;
1853     msg->msg[8] = phys_addr2 & 0xff;
1854     msg->msg[9] = phys_addr3 >> 8;
1855     msg->msg[10] = phys_addr3 & 0xff;
1856 }
1857 
1858 static inline void cec_ops_cdc_hec_request_deactivation(const struct cec_msg *msg,
1859                             __u16 *phys_addr,
1860                             __u16 *phys_addr1,
1861                             __u16 *phys_addr2,
1862                             __u16 *phys_addr3)
1863 {
1864     *phys_addr = (msg->msg[2] << 8) | msg->msg[3];
1865     *phys_addr1 = (msg->msg[5] << 8) | msg->msg[6];
1866     *phys_addr2 = (msg->msg[7] << 8) | msg->msg[8];
1867     *phys_addr3 = (msg->msg[9] << 8) | msg->msg[10];
1868 }
1869 
1870 static inline void cec_msg_cdc_hec_notify_alive(struct cec_msg *msg)
1871 {
1872     msg->len = 5;
1873     msg->msg[0] |= 0xf; /* broadcast */
1874     msg->msg[1] = CEC_MSG_CDC_MESSAGE;
1875     /* msg[2] and msg[3] (phys_addr) are filled in by the CEC framework */
1876     msg->msg[4] = CEC_MSG_CDC_HEC_NOTIFY_ALIVE;
1877 }
1878 
1879 static inline void cec_ops_cdc_hec_notify_alive(const struct cec_msg *msg,
1880                         __u16 *phys_addr)
1881 {
1882     *phys_addr = (msg->msg[2] << 8) | msg->msg[3];
1883 }
1884 
1885 static inline void cec_msg_cdc_hec_discover(struct cec_msg *msg)
1886 {
1887     msg->len = 5;
1888     msg->msg[0] |= 0xf; /* broadcast */
1889     msg->msg[1] = CEC_MSG_CDC_MESSAGE;
1890     /* msg[2] and msg[3] (phys_addr) are filled in by the CEC framework */
1891     msg->msg[4] = CEC_MSG_CDC_HEC_DISCOVER;
1892 }
1893 
1894 static inline void cec_ops_cdc_hec_discover(const struct cec_msg *msg,
1895                         __u16 *phys_addr)
1896 {
1897     *phys_addr = (msg->msg[2] << 8) | msg->msg[3];
1898 }
1899 
1900 static inline void cec_msg_cdc_hpd_set_state(struct cec_msg *msg,
1901                          __u8 input_port,
1902                          __u8 hpd_state)
1903 {
1904     msg->len = 6;
1905     msg->msg[0] |= 0xf; /* broadcast */
1906     msg->msg[1] = CEC_MSG_CDC_MESSAGE;
1907     /* msg[2] and msg[3] (phys_addr) are filled in by the CEC framework */
1908     msg->msg[4] = CEC_MSG_CDC_HPD_SET_STATE;
1909     msg->msg[5] = (input_port << 4) | hpd_state;
1910 }
1911 
1912 static inline void cec_ops_cdc_hpd_set_state(const struct cec_msg *msg,
1913                         __u16 *phys_addr,
1914                         __u8 *input_port,
1915                         __u8 *hpd_state)
1916 {
1917     *phys_addr = (msg->msg[2] << 8) | msg->msg[3];
1918     *input_port = msg->msg[5] >> 4;
1919     *hpd_state = msg->msg[5] & 0xf;
1920 }
1921 
1922 static inline void cec_msg_cdc_hpd_report_state(struct cec_msg *msg,
1923                         __u8 hpd_state,
1924                         __u8 hpd_error)
1925 {
1926     msg->len = 6;
1927     msg->msg[0] |= 0xf; /* broadcast */
1928     msg->msg[1] = CEC_MSG_CDC_MESSAGE;
1929     /* msg[2] and msg[3] (phys_addr) are filled in by the CEC framework */
1930     msg->msg[4] = CEC_MSG_CDC_HPD_REPORT_STATE;
1931     msg->msg[5] = (hpd_state << 4) | hpd_error;
1932 }
1933 
1934 static inline void cec_ops_cdc_hpd_report_state(const struct cec_msg *msg,
1935                         __u16 *phys_addr,
1936                         __u8 *hpd_state,
1937                         __u8 *hpd_error)
1938 {
1939     *phys_addr = (msg->msg[2] << 8) | msg->msg[3];
1940     *hpd_state = msg->msg[5] >> 4;
1941     *hpd_error = msg->msg[5] & 0xf;
1942 }
1943 
1944 #endif
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