diff options
Diffstat (limited to 'sound/oss/emu10k1/irqmgr.c')
-rw-r--r-- | sound/oss/emu10k1/irqmgr.c | 113 |
1 files changed, 0 insertions, 113 deletions
diff --git a/sound/oss/emu10k1/irqmgr.c b/sound/oss/emu10k1/irqmgr.c deleted file mode 100644 index fb2ce638f01c..000000000000 --- a/sound/oss/emu10k1/irqmgr.c +++ /dev/null | |||
@@ -1,113 +0,0 @@ | |||
1 | /* | ||
2 | ********************************************************************** | ||
3 | * irqmgr.c - IRQ manager for emu10k1 driver | ||
4 | * Copyright 1999, 2000 Creative Labs, Inc. | ||
5 | * | ||
6 | ********************************************************************** | ||
7 | * | ||
8 | * Date Author Summary of changes | ||
9 | * ---- ------ ------------------ | ||
10 | * October 20, 1999 Bertrand Lee base code release | ||
11 | * | ||
12 | ********************************************************************** | ||
13 | * | ||
14 | * This program is free software; you can redistribute it and/or | ||
15 | * modify it under the terms of the GNU General Public License as | ||
16 | * published by the Free Software Foundation; either version 2 of | ||
17 | * the License, or (at your option) any later version. | ||
18 | * | ||
19 | * This program is distributed in the hope that it will be useful, | ||
20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
22 | * GNU General Public License for more details. | ||
23 | * | ||
24 | * You should have received a copy of the GNU General Public | ||
25 | * License along with this program; if not, write to the Free | ||
26 | * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, | ||
27 | * USA. | ||
28 | * | ||
29 | ********************************************************************** | ||
30 | */ | ||
31 | |||
32 | #include "hwaccess.h" | ||
33 | #include "8010.h" | ||
34 | #include "cardmi.h" | ||
35 | #include "cardmo.h" | ||
36 | #include "irqmgr.h" | ||
37 | |||
38 | /* Interrupt handler */ | ||
39 | |||
40 | irqreturn_t emu10k1_interrupt(int irq, void *dev_id) | ||
41 | { | ||
42 | struct emu10k1_card *card = (struct emu10k1_card *) dev_id; | ||
43 | u32 irqstatus, irqstatus_tmp; | ||
44 | int handled = 0; | ||
45 | |||
46 | DPD(4, "emu10k1_interrupt called, irq = %u\n", irq); | ||
47 | |||
48 | /* | ||
49 | ** NOTE : | ||
50 | ** We do a 'while loop' here cos on certain machines, with both | ||
51 | ** playback and recording going on at the same time, IRQs will | ||
52 | ** stop coming in after a while. Checking IPND indeed shows that | ||
53 | ** there are interrupts pending but the PIC says no IRQs pending. | ||
54 | ** I suspect that some boards need edge-triggered IRQs but are not | ||
55 | ** getting that condition if we don't completely clear the IPND | ||
56 | ** (make sure no more interrupts are pending). | ||
57 | ** - Eric | ||
58 | */ | ||
59 | |||
60 | while ((irqstatus = inl(card->iobase + IPR))) { | ||
61 | DPD(4, "irq status %#x\n", irqstatus); | ||
62 | |||
63 | irqstatus_tmp = irqstatus; | ||
64 | |||
65 | if (irqstatus & IRQTYPE_TIMER) { | ||
66 | emu10k1_timer_irqhandler(card); | ||
67 | irqstatus &= ~IRQTYPE_TIMER; | ||
68 | } | ||
69 | |||
70 | if (irqstatus & IRQTYPE_DSP) { | ||
71 | emu10k1_dsp_irqhandler(card); | ||
72 | irqstatus &= ~IRQTYPE_DSP; | ||
73 | } | ||
74 | |||
75 | if (irqstatus & IRQTYPE_MPUIN) { | ||
76 | emu10k1_mpuin_irqhandler(card); | ||
77 | irqstatus &= ~IRQTYPE_MPUIN; | ||
78 | } | ||
79 | |||
80 | if (irqstatus & IRQTYPE_MPUOUT) { | ||
81 | emu10k1_mpuout_irqhandler(card); | ||
82 | irqstatus &= ~IRQTYPE_MPUOUT; | ||
83 | } | ||
84 | |||
85 | if (irqstatus & IPR_MUTE) { | ||
86 | emu10k1_mute_irqhandler(card); | ||
87 | irqstatus &=~IPR_MUTE; | ||
88 | } | ||
89 | |||
90 | if (irqstatus & IPR_VOLINCR) { | ||
91 | emu10k1_volincr_irqhandler(card); | ||
92 | irqstatus &=~IPR_VOLINCR; | ||
93 | } | ||
94 | |||
95 | if (irqstatus & IPR_VOLDECR) { | ||
96 | emu10k1_voldecr_irqhandler(card); | ||
97 | irqstatus &=~IPR_VOLDECR; | ||
98 | } | ||
99 | |||
100 | if (irqstatus){ | ||
101 | printk(KERN_ERR "emu10k1: Warning, unhandled interrupt: %#08x\n", irqstatus); | ||
102 | //make sure any interrupts we don't handle are disabled: | ||
103 | emu10k1_irq_disable(card, ~(INTE_MIDIRXENABLE | INTE_MIDITXENABLE | INTE_INTERVALTIMERENB | | ||
104 | INTE_VOLDECRENABLE | INTE_VOLINCRENABLE | INTE_MUTEENABLE | | ||
105 | INTE_FXDSPENABLE)); | ||
106 | } | ||
107 | |||
108 | /* acknowledge interrupt */ | ||
109 | outl(irqstatus_tmp, card->iobase + IPR); | ||
110 | handled = 1; | ||
111 | } | ||
112 | return IRQ_RETVAL(handled); | ||
113 | } | ||