isa/gus/gus_timer.c

11 #include <sound/gus.h>
22 	struct snd_gus_card *gus;
24 	gus = snd_timer_chip(timer);
25 	spin_lock_irqsave(&gus->reg_lock, flags);
27 	tmp = (gus->gf1.timer_enabled |= 4);
28 	snd_gf1_write8(gus, SNDRV_GF1_GB_ADLIB_TIMER_1, 256 - ticks);	/* timer 1 count */
29 	snd_gf1_write8(gus, SNDRV_GF1_GB_SOUND_BLASTER_CONTROL, tmp);	/* enable timer 1 IRQ */
30 	snd_gf1_adlib_write(gus, 0x04, tmp >> 2);	/* timer 2 start */
31 	spin_unlock_irqrestore(&gus->reg_lock, flags);
39 	struct snd_gus_card *gus;
41 	gus = snd_timer_chip(timer);
42 	spin_lock_irqsave(&gus->reg_lock, flags);
43 	tmp = (gus->gf1.timer_enabled &= ~4);
44 	snd_gf1_write8(gus, SNDRV_GF1_GB_SOUND_BLASTER_CONTROL, tmp);	/* disable timer #1 */
45 	spin_unlock_irqrestore(&gus->reg_lock, flags);
58 	struct snd_gus_card *gus;
60 	gus = snd_timer_chip(timer);
61 	spin_lock_irqsave(&gus->reg_lock, flags);
63 	tmp = (gus->gf1.timer_enabled |= 8);
64 	snd_gf1_write8(gus, SNDRV_GF1_GB_ADLIB_TIMER_2, 256 - ticks);	/* timer 2 count */
65 	snd_gf1_write8(gus, SNDRV_GF1_GB_SOUND_BLASTER_CONTROL, tmp);	/* enable timer 2 IRQ */
66 	snd_gf1_adlib_write(gus, 0x04, tmp >> 2);	/* timer 2 start */
67 	spin_unlock_irqrestore(&gus->reg_lock, flags);
75 	struct snd_gus_card *gus;
77 	gus = snd_timer_chip(timer);
78 	spin_lock_irqsave(&gus->reg_lock, flags);
79 	tmp = (gus->gf1.timer_enabled &= ~8);
80 	snd_gf1_write8(gus, SNDRV_GF1_GB_SOUND_BLASTER_CONTROL, tmp);	/* disable timer #1 */
81 	spin_unlock_irqrestore(&gus->reg_lock, flags);
89 static void snd_gf1_interrupt_timer1(struct snd_gus_card * gus)
91 	struct snd_timer *timer = gus->gf1.timer1;
98 static void snd_gf1_interrupt_timer2(struct snd_gus_card * gus)
100 	struct snd_timer *timer = gus->gf1.timer2;
131 	struct snd_gus_card *gus = timer->private_data;
132 	gus->gf1.timer1 = NULL;
137 	struct snd_gus_card *gus = timer->private_data;
138 	gus->gf1.timer2 = NULL;
141 void snd_gf1_timers_init(struct snd_gus_card * gus)
146 	if (gus->gf1.timer1 != NULL || gus->gf1.timer2 != NULL)
149 	gus->gf1.interrupt_handler_timer1 = snd_gf1_interrupt_timer1;
150 	gus->gf1.interrupt_handler_timer2 = snd_gf1_interrupt_timer2;
154 	tid.card = gus->card->number;
155 	tid.device = gus->timer_dev;
158 	if (snd_timer_new(gus->card, "GF1 timer", &tid, &timer) >= 0) {
160 		timer->private_data = gus;
164 	gus->gf1.timer1 = timer;
168 	if (snd_timer_new(gus->card, "GF1 timer", &tid, &timer) >= 0) {
170 		timer->private_data = gus;
174 	gus->gf1.timer2 = timer;
177 void snd_gf1_timers_done(struct snd_gus_card * gus)
179 	snd_gf1_set_default_handlers(gus, SNDRV_GF1_HANDLER_TIMER1 | SNDRV_GF1_HANDLER_TIMER2);
180 	if (gus->gf1.timer1) {
181 		snd_device_free(gus->card, gus->gf1.timer1);
182 		gus->gf1.timer1 = NULL;
184 	if (gus->gf1.timer2) {
185 		snd_device_free(gus->card, gus->gf1.timer2);
186 		gus->gf1.timer2 = NULL;