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28#include <linux/time.h>
29#include <sound/core.h>
30#include <sound/emu10k1.h>
31
32irqreturn_t snd_emu10k1_interrupt(int irq, void *dev_id)
33{
34 struct snd_emu10k1 *emu = dev_id;
35 unsigned int status, status2, orig_status, orig_status2;
36 int handled = 0;
37 int timeout = 0;
38
39 while (((status = inl(emu->port + IPR)) != 0) && (timeout < 1000)) {
40 timeout++;
41 orig_status = status;
42 handled = 1;
43 if ((status & 0xffffffff) == 0xffffffff) {
44 dev_info(emu->card->dev,
45 "Suspected sound card removal\n");
46 break;
47 }
48 if (status & IPR_PCIERROR) {
49 dev_err(emu->card->dev, "interrupt: PCI error\n");
50 snd_emu10k1_intr_disable(emu, INTE_PCIERRORENABLE);
51 status &= ~IPR_PCIERROR;
52 }
53 if (status & (IPR_VOLINCR|IPR_VOLDECR|IPR_MUTE)) {
54 if (emu->hwvol_interrupt)
55 emu->hwvol_interrupt(emu, status);
56 else
57 snd_emu10k1_intr_disable(emu, INTE_VOLINCRENABLE|INTE_VOLDECRENABLE|INTE_MUTEENABLE);
58 status &= ~(IPR_VOLINCR|IPR_VOLDECR|IPR_MUTE);
59 }
60 if (status & IPR_CHANNELLOOP) {
61 int voice;
62 int voice_max = status & IPR_CHANNELNUMBERMASK;
63 u32 val;
64 struct snd_emu10k1_voice *pvoice = emu->voices;
65
66 val = snd_emu10k1_ptr_read(emu, CLIPL, 0);
67 for (voice = 0; voice <= voice_max; voice++) {
68 if (voice == 0x20)
69 val = snd_emu10k1_ptr_read(emu, CLIPH, 0);
70 if (val & 1) {
71 if (pvoice->use && pvoice->interrupt != NULL) {
72 pvoice->interrupt(emu, pvoice);
73 snd_emu10k1_voice_intr_ack(emu, voice);
74 } else {
75 snd_emu10k1_voice_intr_disable(emu, voice);
76 }
77 }
78 val >>= 1;
79 pvoice++;
80 }
81 val = snd_emu10k1_ptr_read(emu, HLIPL, 0);
82 for (voice = 0; voice <= voice_max; voice++) {
83 if (voice == 0x20)
84 val = snd_emu10k1_ptr_read(emu, HLIPH, 0);
85 if (val & 1) {
86 if (pvoice->use && pvoice->interrupt != NULL) {
87 pvoice->interrupt(emu, pvoice);
88 snd_emu10k1_voice_half_loop_intr_ack(emu, voice);
89 } else {
90 snd_emu10k1_voice_half_loop_intr_disable(emu, voice);
91 }
92 }
93 val >>= 1;
94 pvoice++;
95 }
96 status &= ~IPR_CHANNELLOOP;
97 }
98 status &= ~IPR_CHANNELNUMBERMASK;
99 if (status & (IPR_ADCBUFFULL|IPR_ADCBUFHALFFULL)) {
100 if (emu->capture_interrupt)
101 emu->capture_interrupt(emu, status);
102 else
103 snd_emu10k1_intr_disable(emu, INTE_ADCBUFENABLE);
104 status &= ~(IPR_ADCBUFFULL|IPR_ADCBUFHALFFULL);
105 }
106 if (status & (IPR_MICBUFFULL|IPR_MICBUFHALFFULL)) {
107 if (emu->capture_mic_interrupt)
108 emu->capture_mic_interrupt(emu, status);
109 else
110 snd_emu10k1_intr_disable(emu, INTE_MICBUFENABLE);
111 status &= ~(IPR_MICBUFFULL|IPR_MICBUFHALFFULL);
112 }
113 if (status & (IPR_EFXBUFFULL|IPR_EFXBUFHALFFULL)) {
114 if (emu->capture_efx_interrupt)
115 emu->capture_efx_interrupt(emu, status);
116 else
117 snd_emu10k1_intr_disable(emu, INTE_EFXBUFENABLE);
118 status &= ~(IPR_EFXBUFFULL|IPR_EFXBUFHALFFULL);
119 }
120 if (status & (IPR_MIDITRANSBUFEMPTY|IPR_MIDIRECVBUFEMPTY)) {
121 if (emu->midi.interrupt)
122 emu->midi.interrupt(emu, status);
123 else
124 snd_emu10k1_intr_disable(emu, INTE_MIDITXENABLE|INTE_MIDIRXENABLE);
125 status &= ~(IPR_MIDITRANSBUFEMPTY|IPR_MIDIRECVBUFEMPTY);
126 }
127 if (status & (IPR_A_MIDITRANSBUFEMPTY2|IPR_A_MIDIRECVBUFEMPTY2)) {
128 if (emu->midi2.interrupt)
129 emu->midi2.interrupt(emu, status);
130 else
131 snd_emu10k1_intr_disable(emu, INTE_A_MIDITXENABLE2|INTE_A_MIDIRXENABLE2);
132 status &= ~(IPR_A_MIDITRANSBUFEMPTY2|IPR_A_MIDIRECVBUFEMPTY2);
133 }
134 if (status & IPR_INTERVALTIMER) {
135 if (emu->timer)
136 snd_timer_interrupt(emu->timer, emu->timer->sticks);
137 else
138 snd_emu10k1_intr_disable(emu, INTE_INTERVALTIMERENB);
139 status &= ~IPR_INTERVALTIMER;
140 }
141 if (status & (IPR_GPSPDIFSTATUSCHANGE|IPR_CDROMSTATUSCHANGE)) {
142 if (emu->spdif_interrupt)
143 emu->spdif_interrupt(emu, status);
144 else
145 snd_emu10k1_intr_disable(emu, INTE_GPSPDIFENABLE|INTE_CDSPDIFENABLE);
146 status &= ~(IPR_GPSPDIFSTATUSCHANGE|IPR_CDROMSTATUSCHANGE);
147 }
148 if (status & IPR_FXDSP) {
149 if (emu->dsp_interrupt)
150 emu->dsp_interrupt(emu);
151 else
152 snd_emu10k1_intr_disable(emu, INTE_FXDSPENABLE);
153 status &= ~IPR_FXDSP;
154 }
155 if (status & IPR_P16V) {
156 while ((status2 = inl(emu->port + IPR2)) != 0) {
157 u32 mask = INTE2_PLAYBACK_CH_0_LOOP;
158 struct snd_emu10k1_voice *pvoice = &(emu->p16v_voices[0]);
159 struct snd_emu10k1_voice *cvoice = &(emu->p16v_capture_voice);
160
161
162 orig_status2 = status2;
163 if(status2 & mask) {
164 if(pvoice->use) {
165 snd_pcm_period_elapsed(pvoice->epcm->substream);
166 } else {
167 dev_err(emu->card->dev,
168 "p16v: status: 0x%08x, mask=0x%08x, pvoice=%p, use=%d\n",
169 status2, mask, pvoice,
170 pvoice->use);
171 }
172 }
173 if(status2 & 0x110000) {
174
175 if(cvoice->use) {
176
177 snd_pcm_period_elapsed(cvoice->epcm->substream);
178 }
179 }
180 outl(orig_status2, emu->port + IPR2);
181 }
182 status &= ~IPR_P16V;
183 }
184
185 if (status) {
186 unsigned int bits;
187 dev_err(emu->card->dev,
188 "unhandled interrupt: 0x%08x\n", status);
189
190 bits = INTE_FXDSPENABLE |
191 INTE_PCIERRORENABLE |
192 INTE_VOLINCRENABLE |
193 INTE_VOLDECRENABLE |
194 INTE_MUTEENABLE |
195 INTE_MICBUFENABLE |
196 INTE_ADCBUFENABLE |
197 INTE_EFXBUFENABLE |
198 INTE_GPSPDIFENABLE |
199 INTE_CDSPDIFENABLE |
200 INTE_INTERVALTIMERENB |
201 INTE_MIDITXENABLE |
202 INTE_MIDIRXENABLE;
203 if (emu->audigy)
204 bits |= INTE_A_MIDITXENABLE2 | INTE_A_MIDIRXENABLE2;
205 snd_emu10k1_intr_disable(emu, bits);
206 }
207 outl(orig_status, emu->port + IPR);
208 }
209 if (timeout == 1000)
210 dev_info(emu->card->dev, "emu10k1 irq routine failure\n");
211
212 return IRQ_RETVAL(handled);
213}
214
