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Based on 3 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version [author] [graeme] [gregory] [gg]@[slimlogic] [co] [uk] [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] [based] [on] [twl6030]_[usb] [c] [author] [hema] [hk] [hemahk]@[ti] [com] this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1105 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.202006027@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
71 lines
2.2 KiB
C
71 lines
2.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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#ifndef __SOUND_TEA575X_TUNER_H
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#define __SOUND_TEA575X_TUNER_H
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/*
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* ALSA driver for TEA5757/5759 Philips AM/FM tuner chips
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*
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* Copyright (c) 2004 Jaroslav Kysela <perex@perex.cz>
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*/
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#include <linux/videodev2.h>
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#include <media/v4l2-ctrls.h>
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#include <media/v4l2-dev.h>
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#include <media/v4l2-device.h>
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#define TEA575X_FMIF 10700
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#define TEA575X_AMIF 450
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#define TEA575X_DATA (1 << 0)
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#define TEA575X_CLK (1 << 1)
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#define TEA575X_WREN (1 << 2)
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#define TEA575X_MOST (1 << 3)
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struct snd_tea575x;
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struct snd_tea575x_ops {
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/* Drivers using snd_tea575x must either define read_ and write_val */
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void (*write_val)(struct snd_tea575x *tea, u32 val);
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u32 (*read_val)(struct snd_tea575x *tea);
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/* Or define the 3 pin functions */
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void (*set_pins)(struct snd_tea575x *tea, u8 pins);
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u8 (*get_pins)(struct snd_tea575x *tea);
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void (*set_direction)(struct snd_tea575x *tea, bool output);
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};
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struct snd_tea575x {
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struct v4l2_device *v4l2_dev;
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struct v4l2_file_operations fops;
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struct video_device vd; /* video device */
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int radio_nr; /* radio_nr */
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bool tea5759; /* 5759 chip is present */
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bool has_am; /* Device can tune to AM freqs */
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bool cannot_read_data; /* Device cannot read the data pin */
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bool cannot_mute; /* Device cannot mute */
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bool mute; /* Device is muted? */
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bool stereo; /* receiving stereo */
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bool tuned; /* tuned to a station */
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unsigned int val; /* hw value */
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u32 band; /* 0: FM, 1: FM-Japan, 2: AM */
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u32 freq; /* frequency */
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struct mutex mutex;
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const struct snd_tea575x_ops *ops;
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void *private_data;
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u8 card[32];
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u8 bus_info[32];
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struct v4l2_ctrl_handler ctrl_handler;
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int (*ext_init)(struct snd_tea575x *tea);
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};
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int snd_tea575x_enum_freq_bands(struct snd_tea575x *tea,
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struct v4l2_frequency_band *band);
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int snd_tea575x_g_tuner(struct snd_tea575x *tea, struct v4l2_tuner *v);
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int snd_tea575x_s_hw_freq_seek(struct file *file, struct snd_tea575x *tea,
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const struct v4l2_hw_freq_seek *a);
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int snd_tea575x_hw_init(struct snd_tea575x *tea);
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int snd_tea575x_init(struct snd_tea575x *tea, struct module *owner);
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void snd_tea575x_exit(struct snd_tea575x *tea);
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void snd_tea575x_set_freq(struct snd_tea575x *tea);
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#endif /* __SOUND_TEA575X_TUNER_H */
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