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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-11-01 17:08:10 +00:00
24ed960abf
This changes all DEFINE_TIMER() callbacks to use a struct timer_list
pointer instead of unsigned long. Since the data argument has already been
removed, none of these callbacks are using their argument currently, so
this renames the argument to "unused".
Done using the following semantic patch:
@match_define_timer@
declarer name DEFINE_TIMER;
identifier _timer, _callback;
@@
DEFINE_TIMER(_timer, _callback);
@change_callback depends on match_define_timer@
identifier match_define_timer._callback;
type _origtype;
identifier _origarg;
@@
void
-_callback(_origtype _origarg)
+_callback(struct timer_list *unused)
{ ... }
Signed-off-by: Kees Cook <keescook@chromium.org>
116 lines
2.7 KiB
C
116 lines
2.7 KiB
C
/*
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* linux/arch/m68k/amiga/amisound.c
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*
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* amiga sound driver for Linux/m68k
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file COPYING in the main directory of this archive
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* for more details.
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*/
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#include <linux/jiffies.h>
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#include <linux/timer.h>
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#include <linux/init.h>
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#include <linux/string.h>
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#include <linux/module.h>
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#include <asm/amigahw.h>
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static unsigned short *snd_data;
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static const signed char sine_data[] = {
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0, 39, 75, 103, 121, 127, 121, 103, 75, 39,
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0, -39, -75, -103, -121, -127, -121, -103, -75, -39
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};
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#define DATA_SIZE ARRAY_SIZE(sine_data)
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#define custom amiga_custom
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/*
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* The minimum period for audio may be modified by the frame buffer
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* device since it depends on htotal (for OCS/ECS/AGA)
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*/
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volatile unsigned short amiga_audio_min_period = 124; /* Default for pre-OCS */
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EXPORT_SYMBOL(amiga_audio_min_period);
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#define MAX_PERIOD (65535)
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/*
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* Current period (set by dmasound.c)
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*/
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unsigned short amiga_audio_period = MAX_PERIOD;
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EXPORT_SYMBOL(amiga_audio_period);
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static unsigned long clock_constant;
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void __init amiga_init_sound(void)
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{
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static struct resource beep_res = { .name = "Beep" };
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snd_data = amiga_chip_alloc_res(sizeof(sine_data), &beep_res);
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if (!snd_data) {
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pr_crit("amiga init_sound: failed to allocate chipmem\n");
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return;
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}
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memcpy (snd_data, sine_data, sizeof(sine_data));
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/* setup divisor */
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clock_constant = (amiga_colorclock+DATA_SIZE/2)/DATA_SIZE;
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/* without amifb, turn video off and enable high quality sound */
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#ifndef CONFIG_FB_AMIGA
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amifb_video_off();
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#endif
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}
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static void nosound(struct timer_list *unused);
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static DEFINE_TIMER(sound_timer, nosound);
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void amiga_mksound( unsigned int hz, unsigned int ticks )
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{
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unsigned long flags;
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if (!snd_data)
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return;
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local_irq_save(flags);
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del_timer( &sound_timer );
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if (hz > 20 && hz < 32767) {
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unsigned long period = (clock_constant / hz);
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if (period < amiga_audio_min_period)
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period = amiga_audio_min_period;
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if (period > MAX_PERIOD)
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period = MAX_PERIOD;
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/* setup pointer to data, period, length and volume */
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custom.aud[2].audlc = snd_data;
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custom.aud[2].audlen = sizeof(sine_data)/2;
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custom.aud[2].audper = (unsigned short)period;
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custom.aud[2].audvol = 32; /* 50% of maxvol */
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if (ticks) {
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sound_timer.expires = jiffies + ticks;
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add_timer( &sound_timer );
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}
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/* turn on DMA for audio channel 2 */
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custom.dmacon = DMAF_SETCLR | DMAF_AUD2;
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} else
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nosound( 0 );
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local_irq_restore(flags);
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}
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static void nosound(struct timer_list *unused)
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{
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/* turn off DMA for audio channel 2 */
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custom.dmacon = DMAF_AUD2;
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/* restore period to previous value after beeping */
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custom.aud[2].audper = amiga_audio_period;
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}
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