1 #ifndef __SOUND_TEA575X_TUNER_H 2 #define __SOUND_TEA575X_TUNER_H 3 4 /* 5 * ALSA driver for TEA5757/5759 Philips AM/FM tuner chips 6 * 7 * Copyright (c) 2004 Jaroslav Kysela <perex@perex.cz> 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License as published by 11 * the Free Software Foundation; either version 2 of the License, or 12 * (at your option) any later version. 13 * 14 * This program is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 * GNU General Public License for more details. 18 * 19 * You should have received a copy of the GNU General Public License 20 * along with this program; if not, write to the Free Software 21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 22 * 23 */ 24 25 #include <linux/videodev2.h> 26 #include <media/v4l2-ctrls.h> 27 #include <media/v4l2-dev.h> 28 #include <media/v4l2-device.h> 29 30 #define TEA575X_FMIF 10700 31 32 #define TEA575X_DATA (1 << 0) 33 #define TEA575X_CLK (1 << 1) 34 #define TEA575X_WREN (1 << 2) 35 #define TEA575X_MOST (1 << 3) 36 37 struct snd_tea575x; 38 39 struct snd_tea575x_ops { 40 void (*set_pins)(struct snd_tea575x *tea, u8 pins); 41 u8 (*get_pins)(struct snd_tea575x *tea); 42 void (*set_direction)(struct snd_tea575x *tea, bool output); 43 }; 44 45 struct snd_tea575x { 46 struct v4l2_device *v4l2_dev; 47 struct video_device vd; /* video device */ 48 int radio_nr; /* radio_nr */ 49 bool tea5759; /* 5759 chip is present */ 50 bool cannot_read_data; /* Device cannot read the data pin */ 51 bool mute; /* Device is muted? */ 52 bool stereo; /* receiving stereo */ 53 bool tuned; /* tuned to a station */ 54 unsigned int val; /* hw value */ 55 u32 freq; /* frequency */ 56 struct mutex mutex; 57 struct snd_tea575x_ops *ops; 58 void *private_data; 59 u8 card[32]; 60 u8 bus_info[32]; 61 struct v4l2_ctrl_handler ctrl_handler; 62 int (*ext_init)(struct snd_tea575x *tea); 63 }; 64 65 int snd_tea575x_init(struct snd_tea575x *tea); 66 void snd_tea575x_exit(struct snd_tea575x *tea); 67 68 #endif /* __SOUND_TEA575X_TUNER_H */ 69