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- /* SPDX-License-Identifier: GPL-2.0-or-later */
- #ifndef __SOUND_TEA575X_TUNER_H
- #define __SOUND_TEA575X_TUNER_H
- /*
- * ALSA driver for TEA5757/5759 Philips AM/FM tuner chips
- *
- * Copyright (c) 2004 Jaroslav Kysela <[email protected]>
- */
- #include <linux/videodev2.h>
- #include <media/v4l2-ctrls.h>
- #include <media/v4l2-dev.h>
- #include <media/v4l2-device.h>
- #define TEA575X_FMIF 10700
- #define TEA575X_AMIF 450
- #define TEA575X_DATA (1 << 0)
- #define TEA575X_CLK (1 << 1)
- #define TEA575X_WREN (1 << 2)
- #define TEA575X_MOST (1 << 3)
- struct snd_tea575x;
- struct snd_tea575x_ops {
- /* Drivers using snd_tea575x must either define read_ and write_val */
- void (*write_val)(struct snd_tea575x *tea, u32 val);
- u32 (*read_val)(struct snd_tea575x *tea);
- /* Or define the 3 pin functions */
- void (*set_pins)(struct snd_tea575x *tea, u8 pins);
- u8 (*get_pins)(struct snd_tea575x *tea);
- void (*set_direction)(struct snd_tea575x *tea, bool output);
- };
- struct snd_tea575x {
- struct v4l2_device *v4l2_dev;
- struct v4l2_file_operations fops;
- struct video_device vd; /* video device */
- int radio_nr; /* radio_nr */
- bool tea5759; /* 5759 chip is present */
- bool has_am; /* Device can tune to AM freqs */
- bool cannot_read_data; /* Device cannot read the data pin */
- bool cannot_mute; /* Device cannot mute */
- bool mute; /* Device is muted? */
- bool stereo; /* receiving stereo */
- bool tuned; /* tuned to a station */
- unsigned int val; /* hw value */
- u32 band; /* 0: FM, 1: FM-Japan, 2: AM */
- u32 freq; /* frequency */
- struct mutex mutex;
- const struct snd_tea575x_ops *ops;
- void *private_data;
- u8 card[32];
- u8 bus_info[32];
- struct v4l2_ctrl_handler ctrl_handler;
- int (*ext_init)(struct snd_tea575x *tea);
- };
- int snd_tea575x_enum_freq_bands(struct snd_tea575x *tea,
- struct v4l2_frequency_band *band);
- int snd_tea575x_g_tuner(struct snd_tea575x *tea, struct v4l2_tuner *v);
- int snd_tea575x_s_hw_freq_seek(struct file *file, struct snd_tea575x *tea,
- const struct v4l2_hw_freq_seek *a);
- int snd_tea575x_hw_init(struct snd_tea575x *tea);
- int snd_tea575x_init(struct snd_tea575x *tea, struct module *owner);
- void snd_tea575x_exit(struct snd_tea575x *tea);
- void snd_tea575x_set_freq(struct snd_tea575x *tea);
- #endif /* __SOUND_TEA575X_TUNER_H */
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