[deliverable/linux.git] / drivers / media / platform / vivid / vivid-rds-gen.h

/*
 * vivid-rds-gen.h - rds (radio data system) generator support functions.
 *
 * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
 *
 * This program is free software; you may redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; version 2 of the License.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#ifndef _VIVID_RDS_GEN_H_
#define _VIVID_RDS_GEN_H_

/*
 * It takes almost exactly 5 seconds to transmit 57 RDS groups.
 * Each group has 4 blocks and each block has a payload of 16 bits + a
 * block identification. The driver will generate the contents of these
 * 57 groups only when necessary and it will just be played continuously.
 */
#define VIVID_RDS_GEN_GROUPS 57
#define VIVID_RDS_GEN_BLKS_PER_GRP 4
#define VIVID_RDS_GEN_BLOCKS (VIVID_RDS_GEN_BLKS_PER_GRP * VIVID_RDS_GEN_GROUPS)

struct vivid_rds_gen {
	struct v4l2_rds_data	data[VIVID_RDS_GEN_BLOCKS];
	bool			use_rbds;
	u16			picode;
	u8			pty;
	bool			mono_stereo;
	bool			art_head;
	bool			compressed;
	bool			dyn_pty;
	bool			ta;
	bool			tp;
	bool			ms;
	char			psname[8 + 1];
	char			radiotext[64 + 1];
};

void vivid_rds_gen_fill(struct vivid_rds_gen *rds, unsigned freq,
		    bool use_alternate);
void vivid_rds_generate(struct vivid_rds_gen *rds);

#endif
Commit	Line	Data
55d58e98 HV	1	/*
	2	* vivid-rds-gen.h - rds (radio data system) generator support functions.
	3	*
	4	* Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
	5	*
	6	* This program is free software; you may redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; version 2 of the License.
	9	*
	10	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
	11	* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	12	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
	13	* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
	14	* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
	15	* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
	16	* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	17	* SOFTWARE.
	18	*/
	19
	20	#ifndef _VIVID_RDS_GEN_H_
	21	#define _VIVID_RDS_GEN_H_
	22
	23	/*
	24	* It takes almost exactly 5 seconds to transmit 57 RDS groups.
	25	* Each group has 4 blocks and each block has a payload of 16 bits + a
	26	* block identification. The driver will generate the contents of these
	27	* 57 groups only when necessary and it will just be played continuously.
	28	*/
	29	#define VIVID_RDS_GEN_GROUPS 57
	30	#define VIVID_RDS_GEN_BLKS_PER_GRP 4
	31	#define VIVID_RDS_GEN_BLOCKS (VIVID_RDS_GEN_BLKS_PER_GRP * VIVID_RDS_GEN_GROUPS)
	32
	33	struct vivid_rds_gen {
	34	struct v4l2_rds_data data[VIVID_RDS_GEN_BLOCKS];
	35	bool use_rbds;
	36	u16 picode;
	37	u8 pty;
	38	bool mono_stereo;
	39	bool art_head;
	40	bool compressed;
	41	bool dyn_pty;
	42	bool ta;
	43	bool tp;
	44	bool ms;
	45	char psname[8 + 1];
	46	char radiotext[64 + 1];
	47	};
	48
	49	void vivid_rds_gen_fill(struct vivid_rds_gen *rds, unsigned freq,
	50	bool use_alternate);
	51	void vivid_rds_generate(struct vivid_rds_gen *rds);
	52
	53	#endif