]>
git.proxmox.com Git - mirror_ubuntu-zesty-kernel.git/blob - sound/pci/emu10k1/irq.c
2 * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
4 * Routines for IRQ control of EMU10K1 chips
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
28 #include <sound/driver.h>
29 #include <linux/time.h>
30 #include <sound/core.h>
31 #include <sound/emu10k1.h>
33 irqreturn_t
snd_emu10k1_interrupt(int irq
, void *dev_id
)
35 struct snd_emu10k1
*emu
= dev_id
;
36 unsigned int status
, status2
, orig_status
, orig_status2
;
39 while ((status
= inl(emu
->port
+ IPR
)) != 0) {
40 //snd_printk(KERN_INFO "emu10k1 irq - status = 0x%x\n", status);
43 if ((status
& 0xffffffff) == 0xffffffff) {
44 snd_printk(KERN_INFO
"snd-emu10k1: Suspected sound card removal\n");
47 if (status
& IPR_PCIERROR
) {
48 snd_printk(KERN_ERR
"interrupt: PCI error\n");
49 snd_emu10k1_intr_disable(emu
, INTE_PCIERRORENABLE
);
50 status
&= ~IPR_PCIERROR
;
52 if (status
& (IPR_VOLINCR
|IPR_VOLDECR
|IPR_MUTE
)) {
53 if (emu
->hwvol_interrupt
)
54 emu
->hwvol_interrupt(emu
, status
);
56 snd_emu10k1_intr_disable(emu
, INTE_VOLINCRENABLE
|INTE_VOLDECRENABLE
|INTE_MUTEENABLE
);
57 status
&= ~(IPR_VOLINCR
|IPR_VOLDECR
|IPR_MUTE
);
59 if (status
& IPR_CHANNELLOOP
) {
61 int voice_max
= status
& IPR_CHANNELNUMBERMASK
;
63 struct snd_emu10k1_voice
*pvoice
= emu
->voices
;
65 val
= snd_emu10k1_ptr_read(emu
, CLIPL
, 0);
66 for (voice
= 0; voice
<= voice_max
; voice
++) {
68 val
= snd_emu10k1_ptr_read(emu
, CLIPH
, 0);
70 if (pvoice
->use
&& pvoice
->interrupt
!= NULL
) {
71 pvoice
->interrupt(emu
, pvoice
);
72 snd_emu10k1_voice_intr_ack(emu
, voice
);
74 snd_emu10k1_voice_intr_disable(emu
, voice
);
80 val
= snd_emu10k1_ptr_read(emu
, HLIPL
, 0);
81 for (voice
= 0; voice
<= voice_max
; voice
++) {
83 val
= snd_emu10k1_ptr_read(emu
, HLIPH
, 0);
85 if (pvoice
->use
&& pvoice
->interrupt
!= NULL
) {
86 pvoice
->interrupt(emu
, pvoice
);
87 snd_emu10k1_voice_half_loop_intr_ack(emu
, voice
);
89 snd_emu10k1_voice_half_loop_intr_disable(emu
, voice
);
95 status
&= ~IPR_CHANNELLOOP
;
97 status
&= ~IPR_CHANNELNUMBERMASK
;
98 if (status
& (IPR_ADCBUFFULL
|IPR_ADCBUFHALFFULL
)) {
99 if (emu
->capture_interrupt
)
100 emu
->capture_interrupt(emu
, status
);
102 snd_emu10k1_intr_disable(emu
, INTE_ADCBUFENABLE
);
103 status
&= ~(IPR_ADCBUFFULL
|IPR_ADCBUFHALFFULL
);
105 if (status
& (IPR_MICBUFFULL
|IPR_MICBUFHALFFULL
)) {
106 if (emu
->capture_mic_interrupt
)
107 emu
->capture_mic_interrupt(emu
, status
);
109 snd_emu10k1_intr_disable(emu
, INTE_MICBUFENABLE
);
110 status
&= ~(IPR_MICBUFFULL
|IPR_MICBUFHALFFULL
);
112 if (status
& (IPR_EFXBUFFULL
|IPR_EFXBUFHALFFULL
)) {
113 if (emu
->capture_efx_interrupt
)
114 emu
->capture_efx_interrupt(emu
, status
);
116 snd_emu10k1_intr_disable(emu
, INTE_EFXBUFENABLE
);
117 status
&= ~(IPR_EFXBUFFULL
|IPR_EFXBUFHALFFULL
);
119 if (status
& (IPR_MIDITRANSBUFEMPTY
|IPR_MIDIRECVBUFEMPTY
)) {
120 if (emu
->midi
.interrupt
)
121 emu
->midi
.interrupt(emu
, status
);
123 snd_emu10k1_intr_disable(emu
, INTE_MIDITXENABLE
|INTE_MIDIRXENABLE
);
124 status
&= ~(IPR_MIDITRANSBUFEMPTY
|IPR_MIDIRECVBUFEMPTY
);
126 if (status
& (IPR_A_MIDITRANSBUFEMPTY2
|IPR_A_MIDIRECVBUFEMPTY2
)) {
127 if (emu
->midi2
.interrupt
)
128 emu
->midi2
.interrupt(emu
, status
);
130 snd_emu10k1_intr_disable(emu
, INTE_A_MIDITXENABLE2
|INTE_A_MIDIRXENABLE2
);
131 status
&= ~(IPR_A_MIDITRANSBUFEMPTY2
|IPR_A_MIDIRECVBUFEMPTY2
);
133 if (status
& IPR_INTERVALTIMER
) {
135 snd_timer_interrupt(emu
->timer
, emu
->timer
->sticks
);
137 snd_emu10k1_intr_disable(emu
, INTE_INTERVALTIMERENB
);
138 status
&= ~IPR_INTERVALTIMER
;
140 if (status
& (IPR_GPSPDIFSTATUSCHANGE
|IPR_CDROMSTATUSCHANGE
)) {
141 if (emu
->spdif_interrupt
)
142 emu
->spdif_interrupt(emu
, status
);
144 snd_emu10k1_intr_disable(emu
, INTE_GPSPDIFENABLE
|INTE_CDSPDIFENABLE
);
145 status
&= ~(IPR_GPSPDIFSTATUSCHANGE
|IPR_CDROMSTATUSCHANGE
);
147 if (status
& IPR_FXDSP
) {
148 if (emu
->dsp_interrupt
)
149 emu
->dsp_interrupt(emu
);
151 snd_emu10k1_intr_disable(emu
, INTE_FXDSPENABLE
);
152 status
&= ~IPR_FXDSP
;
154 if (status
& IPR_P16V
) {
155 while ((status2
= inl(emu
->port
+ IPR2
)) != 0) {
156 u32 mask
= INTE2_PLAYBACK_CH_0_LOOP
; /* Full Loop */
157 struct snd_emu10k1_voice
*pvoice
= &(emu
->p16v_voices
[0]);
158 struct snd_emu10k1_voice
*cvoice
= &(emu
->p16v_capture_voice
);
160 //printk(KERN_INFO "status2=0x%x\n", status2);
161 orig_status2
= status2
;
164 snd_pcm_period_elapsed(pvoice
->epcm
->substream
);
166 snd_printk(KERN_ERR
"p16v: status: 0x%08x, mask=0x%08x, pvoice=%p, use=%d\n", status2
, mask
, pvoice
, pvoice
->use
);
169 if(status2
& 0x110000) {
170 //printk(KERN_INFO "capture int found\n");
172 //printk(KERN_INFO "capture period_elapsed\n");
173 snd_pcm_period_elapsed(cvoice
->epcm
->substream
);
176 outl(orig_status2
, emu
->port
+ IPR2
); /* ack all */
183 snd_printk(KERN_ERR
"emu10k1: unhandled interrupt: 0x%08x\n", status
);
184 //make sure any interrupts we don't handle are disabled:
185 bits
= INTE_FXDSPENABLE
|
186 INTE_PCIERRORENABLE
|
195 INTE_INTERVALTIMERENB
|
199 bits
|= INTE_A_MIDITXENABLE2
| INTE_A_MIDIRXENABLE2
;
200 snd_emu10k1_intr_disable(emu
, bits
);
202 outl(orig_status
, emu
->port
+ IPR
); /* ack all */
204 return IRQ_RETVAL(handled
);