14faba767SHans de Goede #ifndef __RADIO_TEA5777_H 24faba767SHans de Goede #define __RADIO_TEA5777_H 34faba767SHans de Goede 44faba767SHans de Goede /* 54faba767SHans de Goede * v4l2 driver for TEA5777 Philips AM/FM radio tuner chips 64faba767SHans de Goede * 74faba767SHans de Goede * Copyright (c) 2012 Hans de Goede <hdegoede@redhat.com> 84faba767SHans de Goede * 94faba767SHans de Goede * Based on the ALSA driver for TEA5757/5759 Philips AM/FM radio tuner chips: 104faba767SHans de Goede * 114faba767SHans de Goede * Copyright (c) 2004 Jaroslav Kysela <perex@perex.cz> 124faba767SHans de Goede * Copyright (c) 2012 Hans de Goede <hdegoede@redhat.com> 134faba767SHans de Goede * 144faba767SHans de Goede * This program is free software; you can redistribute it and/or modify 154faba767SHans de Goede * it under the terms of the GNU General Public License as published by 164faba767SHans de Goede * the Free Software Foundation; either version 2 of the License, or 174faba767SHans de Goede * (at your option) any later version. 184faba767SHans de Goede * 194faba767SHans de Goede * This program is distributed in the hope that it will be useful, 204faba767SHans de Goede * but WITHOUT ANY WARRANTY; without even the implied warranty of 214faba767SHans de Goede * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 224faba767SHans de Goede * GNU General Public License for more details. 234faba767SHans de Goede * 244faba767SHans de Goede * You should have received a copy of the GNU General Public License 254faba767SHans de Goede * along with this program; if not, write to the Free Software 264faba767SHans de Goede * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 274faba767SHans de Goede * 284faba767SHans de Goede */ 294faba767SHans de Goede 304faba767SHans de Goede #include <linux/videodev2.h> 314faba767SHans de Goede #include <media/v4l2-ctrls.h> 324faba767SHans de Goede #include <media/v4l2-dev.h> 334faba767SHans de Goede #include <media/v4l2-device.h> 344faba767SHans de Goede 354faba767SHans de Goede #define TEA575X_FMIF 10700 364faba767SHans de Goede #define TEA575X_AMIF 450 374faba767SHans de Goede 384faba767SHans de Goede struct radio_tea5777; 394faba767SHans de Goede 404faba767SHans de Goede struct radio_tea5777_ops { 414faba767SHans de Goede /* 424faba767SHans de Goede * Write the 6 bytes large write register of the tea5777 434faba767SHans de Goede * 444faba767SHans de Goede * val represents the 6 write registers, with byte 1 from the 454faba767SHans de Goede * datasheet being the most significant byte (so byte 5 of the u64), 464faba767SHans de Goede * and byte 6 from the datasheet being the least significant byte. 474faba767SHans de Goede * 484faba767SHans de Goede * returns 0 on success. 494faba767SHans de Goede */ 504faba767SHans de Goede int (*write_reg)(struct radio_tea5777 *tea, u64 val); 514faba767SHans de Goede /* 524faba767SHans de Goede * Read the 3 bytes large read register of the tea5777 534faba767SHans de Goede * 544faba767SHans de Goede * The read value gets returned in val, akin to write_reg, byte 1 from 554faba767SHans de Goede * the datasheet is stored as the most significant byte (so byte 2 of 564faba767SHans de Goede * the u32), and byte 3 from the datasheet gets stored as the least 574faba767SHans de Goede * significant byte (iow byte 0 of the u32). 584faba767SHans de Goede * 594faba767SHans de Goede * returns 0 on success. 604faba767SHans de Goede */ 614faba767SHans de Goede int (*read_reg)(struct radio_tea5777 *tea, u32 *val); 624faba767SHans de Goede }; 634faba767SHans de Goede 644faba767SHans de Goede struct radio_tea5777 { 654faba767SHans de Goede struct v4l2_device *v4l2_dev; 664faba767SHans de Goede struct v4l2_file_operations fops; 674faba767SHans de Goede struct video_device vd; /* video device */ 684faba767SHans de Goede bool has_am; /* Device can tune to AM freqs */ 694faba767SHans de Goede bool write_before_read; /* must write before read quirk */ 704faba767SHans de Goede bool needs_write; /* for write before read quirk */ 71d7aab0bfSHans de Goede u32 band; /* current band */ 724faba767SHans de Goede u32 freq; /* current frequency */ 73d7aab0bfSHans de Goede u32 audmode; /* last set audmode */ 744faba767SHans de Goede u32 seek_rangelow; /* current hwseek limits */ 754faba767SHans de Goede u32 seek_rangehigh; 764faba767SHans de Goede u32 read_reg; 774faba767SHans de Goede u64 write_reg; 784faba767SHans de Goede struct mutex mutex; 7918a8560cSJulia Lawall const struct radio_tea5777_ops *ops; 804faba767SHans de Goede void *private_data; 814faba767SHans de Goede u8 card[32]; 824faba767SHans de Goede u8 bus_info[32]; 834faba767SHans de Goede struct v4l2_ctrl_handler ctrl_handler; 844faba767SHans de Goede }; 854faba767SHans de Goede 864faba767SHans de Goede int radio_tea5777_init(struct radio_tea5777 *tea, struct module *owner); 874faba767SHans de Goede void radio_tea5777_exit(struct radio_tea5777 *tea); 88d1f280d6SHans de Goede int radio_tea5777_set_freq(struct radio_tea5777 *tea); 894faba767SHans de Goede 904faba767SHans de Goede #endif /* __RADIO_TEA5777_H */ 91