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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /sound/pci/emu10k1/irq.c
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'sound/pci/emu10k1/irq.c')
-rw-r--r--sound/pci/emu10k1/irq.c189
1 files changed, 189 insertions, 0 deletions
diff --git a/sound/pci/emu10k1/irq.c b/sound/pci/emu10k1/irq.c
new file mode 100644
index 000000000000..b81a7cafff39
--- /dev/null
+++ b/sound/pci/emu10k1/irq.c
@@ -0,0 +1,189 @@
1/*
2 * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
3 * Creative Labs, Inc.
4 * Routines for IRQ control of EMU10K1 chips
5 *
6 * BUGS:
7 * --
8 *
9 * TODO:
10 * --
11 *
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.
16 *
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.
21 *
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
25 *
26 */
27
28#include <sound/driver.h>
29#include <linux/time.h>
30#include <sound/core.h>
31#include <sound/emu10k1.h>
32
33irqreturn_t snd_emu10k1_interrupt(int irq, void *dev_id, struct pt_regs *regs)
34{
35 emu10k1_t *emu = dev_id;
36 unsigned int status, status2, orig_status, orig_status2;
37 int handled = 0;
38
39 while ((status = inl(emu->port + IPR)) != 0) {
40 // printk("irq - status = 0x%x\n", status);
41 orig_status = status;
42 handled = 1;
43 if (status & IPR_PCIERROR) {
44 snd_printk("interrupt: PCI error\n");
45 snd_emu10k1_intr_disable(emu, INTE_PCIERRORENABLE);
46 status &= ~IPR_PCIERROR;
47 }
48 if (status & (IPR_VOLINCR|IPR_VOLDECR|IPR_MUTE)) {
49 if (emu->hwvol_interrupt)
50 emu->hwvol_interrupt(emu, status);
51 else
52 snd_emu10k1_intr_disable(emu, INTE_VOLINCRENABLE|INTE_VOLDECRENABLE|INTE_MUTEENABLE);
53 status &= ~(IPR_VOLINCR|IPR_VOLDECR|IPR_MUTE);
54 }
55 if (status & IPR_CHANNELLOOP) {
56 int voice;
57 int voice_max = status & IPR_CHANNELNUMBERMASK;
58 u32 val;
59 emu10k1_voice_t *pvoice = emu->voices;
60
61 val = snd_emu10k1_ptr_read(emu, CLIPL, 0);
62 for (voice = 0; voice <= voice_max; voice++) {
63 if (voice == 0x20)
64 val = snd_emu10k1_ptr_read(emu, CLIPH, 0);
65 if (val & 1) {
66 if (pvoice->use && pvoice->interrupt != NULL) {
67 pvoice->interrupt(emu, pvoice);
68 snd_emu10k1_voice_intr_ack(emu, voice);
69 } else {
70 snd_emu10k1_voice_intr_disable(emu, voice);
71 }
72 }
73 val >>= 1;
74 pvoice++;
75 }
76 val = snd_emu10k1_ptr_read(emu, HLIPL, 0);
77 for (voice = 0; voice <= voice_max; voice++) {
78 if (voice == 0x20)
79 val = snd_emu10k1_ptr_read(emu, HLIPH, 0);
80 if (val & 1) {
81 if (pvoice->use && pvoice->interrupt != NULL) {
82 pvoice->interrupt(emu, pvoice);
83 snd_emu10k1_voice_half_loop_intr_ack(emu, voice);
84 } else {
85 snd_emu10k1_voice_half_loop_intr_disable(emu, voice);
86 }
87 }
88 val >>= 1;
89 pvoice++;
90 }
91 status &= ~IPR_CHANNELLOOP;
92 }
93 status &= ~IPR_CHANNELNUMBERMASK;
94 if (status & (IPR_ADCBUFFULL|IPR_ADCBUFHALFFULL)) {
95 if (emu->capture_interrupt)
96 emu->capture_interrupt(emu, status);
97 else
98 snd_emu10k1_intr_disable(emu, INTE_ADCBUFENABLE);
99 status &= ~(IPR_ADCBUFFULL|IPR_ADCBUFHALFFULL);
100 }
101 if (status & (IPR_MICBUFFULL|IPR_MICBUFHALFFULL)) {
102 if (emu->capture_mic_interrupt)
103 emu->capture_mic_interrupt(emu, status);
104 else
105 snd_emu10k1_intr_disable(emu, INTE_MICBUFENABLE);
106 status &= ~(IPR_MICBUFFULL|IPR_MICBUFHALFFULL);
107 }
108 if (status & (IPR_EFXBUFFULL|IPR_EFXBUFHALFFULL)) {
109 if (emu->capture_efx_interrupt)
110 emu->capture_efx_interrupt(emu, status);
111 else
112 snd_emu10k1_intr_disable(emu, INTE_EFXBUFENABLE);
113 status &= ~(IPR_EFXBUFFULL|IPR_EFXBUFHALFFULL);
114 }
115 if (status & (IPR_MIDITRANSBUFEMPTY|IPR_MIDIRECVBUFEMPTY)) {
116 if (emu->midi.interrupt)
117 emu->midi.interrupt(emu, status);
118 else
119 snd_emu10k1_intr_disable(emu, INTE_MIDITXENABLE|INTE_MIDIRXENABLE);
120 status &= ~(IPR_MIDITRANSBUFEMPTY|IPR_MIDIRECVBUFEMPTY);
121 }
122 if (status & (IPR_A_MIDITRANSBUFEMPTY2|IPR_A_MIDIRECVBUFEMPTY2)) {
123 if (emu->midi2.interrupt)
124 emu->midi2.interrupt(emu, status);
125 else
126 snd_emu10k1_intr_disable(emu, INTE_A_MIDITXENABLE2|INTE_A_MIDIRXENABLE2);
127 status &= ~(IPR_A_MIDITRANSBUFEMPTY2|IPR_A_MIDIRECVBUFEMPTY2);
128 }
129 if (status & IPR_INTERVALTIMER) {
130 if (emu->timer)
131 snd_timer_interrupt(emu->timer, emu->timer->sticks);
132 else
133 snd_emu10k1_intr_disable(emu, INTE_INTERVALTIMERENB);
134 status &= ~IPR_INTERVALTIMER;
135 }
136 if (status & (IPR_GPSPDIFSTATUSCHANGE|IPR_CDROMSTATUSCHANGE)) {
137 if (emu->spdif_interrupt)
138 emu->spdif_interrupt(emu, status);
139 else
140 snd_emu10k1_intr_disable(emu, INTE_GPSPDIFENABLE|INTE_CDSPDIFENABLE);
141 status &= ~(IPR_GPSPDIFSTATUSCHANGE|IPR_CDROMSTATUSCHANGE);
142 }
143 if (status & IPR_FXDSP) {
144 if (emu->dsp_interrupt)
145 emu->dsp_interrupt(emu);
146 else
147 snd_emu10k1_intr_disable(emu, INTE_FXDSPENABLE);
148 status &= ~IPR_FXDSP;
149 }
150 if (status) {
151 unsigned int bits;
152 //snd_printk(KERN_ERR "emu10k1: unhandled interrupt: 0x%08x\n", status);
153 //make sure any interrupts we don't handle are disabled:
154 bits = INTE_FXDSPENABLE |
155 INTE_PCIERRORENABLE |
156 INTE_VOLINCRENABLE |
157 INTE_VOLDECRENABLE |
158 INTE_MUTEENABLE |
159 INTE_MICBUFENABLE |
160 INTE_ADCBUFENABLE |
161 INTE_EFXBUFENABLE |
162 INTE_GPSPDIFENABLE |
163 INTE_CDSPDIFENABLE |
164 INTE_INTERVALTIMERENB |
165 INTE_MIDITXENABLE |
166 INTE_MIDIRXENABLE;
167 if (emu->audigy)
168 bits |= INTE_A_MIDITXENABLE2 | INTE_A_MIDIRXENABLE2;
169 snd_emu10k1_intr_disable(emu, bits);
170 }
171 outl(orig_status, emu->port + IPR); /* ack all */
172 }
173 if (emu->audigy && emu->revision == 4) { /* P16V */
174 while ((status2 = inl(emu->port + IPR2)) != 0) {
175 u32 mask = INTE2_PLAYBACK_CH_0_LOOP; /* Full Loop */
176 emu10k1_voice_t *pvoice = &(emu->p16v_voices[0]);
177 orig_status2 = status2;
178 if(status2 & mask) {
179 if(pvoice->use) {
180 snd_pcm_period_elapsed(pvoice->epcm->substream);
181 } else {
182 snd_printk(KERN_ERR "p16v: status: 0x%08x, mask=0x%08x, pvoice=%p, use=%d\n", status2, mask, pvoice, pvoice->use);
183 }
184 }
185 outl(orig_status2, emu->port + IPR2); /* ack all */
186 }
187 }
188 return IRQ_RETVAL(handled);
189}
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-18 19:40:59 -0500