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022a13a1db
clang-16 started warning about incompatible function pointers here:
sound/pci/aw2/aw2-alsa.c:363:11: error: cast from 'void (*)(struct snd_pcm_substream *)' to 'snd_aw2_saa7146_it_cb' (aka 'void (*)(void *)') converts to incompatible function type [-Werror,-Wcast-function-type-strict]
363 | (snd_aw2_saa7146_it_cb)
| ^~~~~~~~~~~~~~~~~~~~~~~
364 | snd_pcm_period_elapsed,
| ~~~~~~~~~~~~~~~~~~~~~~
sound/pci/aw2/aw2-alsa.c:392:10: error: cast from 'void (*)(struct snd_pcm_substream *)' to 'snd_aw2_saa7146_it_cb' (aka 'void (*)(void *)') converts to incompatible function type [-Werror,-Wcast-function-type-strict]
392 | (snd_aw2_saa7146_it_cb)
| ^~~~~~~~~~~~~~~~~~~~~~~
393 | snd_pcm_period_elapsed,
| ~~~~~~~~~~~~~~~~~~~~~~
Add a forward declaration for struct snd_pcm_substrea to allow it to just
use the correct prototype.
Fixes: 98f2a97f20 ("[ALSA] Emagic Audiowerk 2 ALSA driver.")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20240213101327.460191-1-arnd@kernel.org
Signed-off-by: Takashi Iwai <tiwai@suse.de>
94 lines
3.0 KiB
C
94 lines
3.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*****************************************************************************
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*
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* Copyright (C) 2008 Cedric Bregardis <cedric.bregardis@free.fr> and
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* Jean-Christian Hassler <jhassler@free.fr>
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*
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* This file is part of the Audiowerk2 ALSA driver
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*
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*****************************************************************************/
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#ifndef AW2_SAA7146_H
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#define AW2_SAA7146_H
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#define NB_STREAM_PLAYBACK 2
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#define NB_STREAM_CAPTURE 1
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#define NUM_STREAM_PLAYBACK_ANA 0
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#define NUM_STREAM_PLAYBACK_DIG 1
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#define NUM_STREAM_CAPTURE_ANA 0
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struct snd_pcm_substream;
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typedef void (*snd_aw2_saa7146_it_cb) (struct snd_pcm_substream *);
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struct snd_aw2_saa7146_cb_param {
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snd_aw2_saa7146_it_cb p_it_callback;
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struct snd_pcm_substream *p_callback_param;
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};
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/* definition of the chip-specific record */
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struct snd_aw2_saa7146 {
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void __iomem *base_addr;
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};
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extern void snd_aw2_saa7146_setup(struct snd_aw2_saa7146 *chip,
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void __iomem *pci_base_addr);
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extern int snd_aw2_saa7146_free(struct snd_aw2_saa7146 *chip);
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extern void snd_aw2_saa7146_pcm_init_playback(struct snd_aw2_saa7146 *chip,
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int stream_number,
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unsigned long dma_addr,
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unsigned long period_size,
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unsigned long buffer_size);
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extern void snd_aw2_saa7146_pcm_init_capture(struct snd_aw2_saa7146 *chip,
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int stream_number,
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unsigned long dma_addr,
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unsigned long period_size,
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unsigned long buffer_size);
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extern void snd_aw2_saa7146_define_it_playback_callback(unsigned int
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stream_number,
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snd_aw2_saa7146_it_cb
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p_it_callback,
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void *p_callback_param);
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extern void snd_aw2_saa7146_define_it_capture_callback(unsigned int
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stream_number,
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snd_aw2_saa7146_it_cb
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p_it_callback,
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void *p_callback_param);
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extern void snd_aw2_saa7146_pcm_trigger_start_capture(struct snd_aw2_saa7146
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*chip, int stream_number);
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extern void snd_aw2_saa7146_pcm_trigger_stop_capture(struct snd_aw2_saa7146
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*chip, int stream_number);
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extern void snd_aw2_saa7146_pcm_trigger_start_playback(struct snd_aw2_saa7146
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*chip,
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int stream_number);
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extern void snd_aw2_saa7146_pcm_trigger_stop_playback(struct snd_aw2_saa7146
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*chip, int stream_number);
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extern irqreturn_t snd_aw2_saa7146_interrupt(int irq, void *dev_id);
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extern unsigned int snd_aw2_saa7146_get_hw_ptr_playback(struct snd_aw2_saa7146
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*chip,
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int stream_number,
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unsigned char
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*start_addr,
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unsigned int
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buffer_size);
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extern unsigned int snd_aw2_saa7146_get_hw_ptr_capture(struct snd_aw2_saa7146
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*chip,
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int stream_number,
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unsigned char
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*start_addr,
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unsigned int
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buffer_size);
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extern void snd_aw2_saa7146_use_digital_input(struct snd_aw2_saa7146 *chip,
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int use_digital);
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extern int snd_aw2_saa7146_is_using_digital_input(struct snd_aw2_saa7146
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*chip);
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#endif
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