Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 162 insertions, 0 deletions

diff --git a/sound/pci/emu10k1/irq.c b/sound/pci/emu10k1/irq.c
new file mode 100644
index 0000000000..71aa90b9cc
--- /dev/null
+++ b/sound/pci/emu10k1/irq.c
@@ -0,0 +1,162 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
+ *                   Creative Labs, Inc.
+ *  Routines for IRQ control of EMU10K1 chips
+ */
+
+#include <linux/time.h>
+#include <sound/core.h>
+#include <sound/emu10k1.h>
+
+irqreturn_t snd_emu10k1_interrupt(int irq, void *dev_id)
+{
+	struct snd_emu10k1 *emu = dev_id;
+	unsigned int status, orig_status;
+	int handled = 0;
+	int timeout = 0;
+
+	while ((status = inl(emu->port + IPR)) != 0) {
+		handled = 1;
+		if ((status & 0xffffffff) == 0xffffffff) {
+			dev_info(emu->card->dev,
+				 "Suspected sound card removal\n");
+			break;
+		}
+		if (++timeout == 1000) {
+			dev_info(emu->card->dev, "emu10k1 irq routine failure\n");
+			break;
+		}
+		orig_status = status;
+		if (status & IPR_PCIERROR) {
+			dev_err(emu->card->dev, "interrupt: PCI error\n");
+			snd_emu10k1_intr_disable(emu, INTE_PCIERRORENABLE);
+			status &= ~IPR_PCIERROR;
+		}
+		if (status & (IPR_VOLINCR|IPR_VOLDECR|IPR_MUTE)) {
+			if (emu->hwvol_interrupt)
+				emu->hwvol_interrupt(emu, status);
+			else
+				snd_emu10k1_intr_disable(emu, INTE_VOLINCRENABLE|INTE_VOLDECRENABLE|INTE_MUTEENABLE);
+			status &= ~(IPR_VOLINCR|IPR_VOLDECR|IPR_MUTE);
+		}
+		if (status & IPR_CHANNELLOOP) {
+			struct snd_emu10k1_voice *pvoice;
+			int voice;
+			int voice_max = status & IPR_CHANNELNUMBERMASK;
+			u32 val;
+
+			val = snd_emu10k1_ptr_read(emu, CLIPL, 0);
+			pvoice = emu->voices;
+			for (voice = 0; voice <= voice_max; voice++) {
+				if (voice == 0x20)
+					val = snd_emu10k1_ptr_read(emu, CLIPH, 0);
+				if (val & 1) {
+					if (pvoice->use && pvoice->interrupt != NULL) {
+						pvoice->interrupt(emu, pvoice);
+						snd_emu10k1_voice_intr_ack(emu, voice);
+					} else {
+						snd_emu10k1_voice_intr_disable(emu, voice);
+					}
+				}
+				val >>= 1;
+				pvoice++;
+			}
+			val = snd_emu10k1_ptr_read(emu, HLIPL, 0);
+			pvoice = emu->voices;
+			for (voice = 0; voice <= voice_max; voice++) {
+				if (voice == 0x20)
+					val = snd_emu10k1_ptr_read(emu, HLIPH, 0);
+				if (val & 1) {
+					if (pvoice->use && pvoice->interrupt != NULL) {
+						pvoice->interrupt(emu, pvoice);
+						snd_emu10k1_voice_half_loop_intr_ack(emu, voice);
+					} else {
+						snd_emu10k1_voice_half_loop_intr_disable(emu, voice);
+					}
+				}
+				val >>= 1;
+				pvoice++;
+			}
+			status &= ~(IPR_CHANNELLOOP | IPR_CHANNELNUMBERMASK);
+		}
+		if (status & (IPR_ADCBUFFULL|IPR_ADCBUFHALFFULL)) {
+			if (emu->capture_interrupt)
+				emu->capture_interrupt(emu, status);
+			else
+				snd_emu10k1_intr_disable(emu, INTE_ADCBUFENABLE);
+			status &= ~(IPR_ADCBUFFULL|IPR_ADCBUFHALFFULL);
+		}
+		if (status & (IPR_MICBUFFULL|IPR_MICBUFHALFFULL)) {
+			if (emu->capture_mic_interrupt)
+				emu->capture_mic_interrupt(emu, status);
+			else
+				snd_emu10k1_intr_disable(emu, INTE_MICBUFENABLE);
+			status &= ~(IPR_MICBUFFULL|IPR_MICBUFHALFFULL);
+		}
+		if (status & (IPR_EFXBUFFULL|IPR_EFXBUFHALFFULL)) {
+			if (emu->capture_efx_interrupt)
+				emu->capture_efx_interrupt(emu, status);
+			else
+				snd_emu10k1_intr_disable(emu, INTE_EFXBUFENABLE);
+			status &= ~(IPR_EFXBUFFULL|IPR_EFXBUFHALFFULL);
+		}
+		if (status & (IPR_MIDITRANSBUFEMPTY|IPR_MIDIRECVBUFEMPTY)) {
+			if (emu->midi.interrupt)
+				emu->midi.interrupt(emu, status);
+			else
+				snd_emu10k1_intr_disable(emu, INTE_MIDITXENABLE|INTE_MIDIRXENABLE);
+			status &= ~(IPR_MIDITRANSBUFEMPTY|IPR_MIDIRECVBUFEMPTY);
+		}
+		if (status & (IPR_A_MIDITRANSBUFEMPTY2|IPR_A_MIDIRECVBUFEMPTY2)) {
+			if (emu->midi2.interrupt)
+				emu->midi2.interrupt(emu, status);
+			else
+				snd_emu10k1_intr_disable(emu, INTE_A_MIDITXENABLE2|INTE_A_MIDIRXENABLE2);
+			status &= ~(IPR_A_MIDITRANSBUFEMPTY2|IPR_A_MIDIRECVBUFEMPTY2);
+		}
+		if (status & IPR_INTERVALTIMER) {
+			if (emu->timer)
+				snd_timer_interrupt(emu->timer, emu->timer->sticks);
+			else
+				snd_emu10k1_intr_disable(emu, INTE_INTERVALTIMERENB);
+			status &= ~IPR_INTERVALTIMER;
+		}
+		if (status & (IPR_GPSPDIFSTATUSCHANGE|IPR_CDROMSTATUSCHANGE)) {
+			if (emu->spdif_interrupt)
+				emu->spdif_interrupt(emu, status);
+			else
+				snd_emu10k1_intr_disable(emu, INTE_GPSPDIFENABLE|INTE_CDSPDIFENABLE);
+			status &= ~(IPR_GPSPDIFSTATUSCHANGE|IPR_CDROMSTATUSCHANGE);
+		}
+		if (status & IPR_FXDSP) {
+			if (emu->dsp_interrupt)
+				emu->dsp_interrupt(emu);
+			else
+				snd_emu10k1_intr_disable(emu, INTE_FXDSPENABLE);
+			status &= ~IPR_FXDSP;
+		}
+		if (status & IPR_P16V) {
+			if (emu->p16v_interrupt)
+				emu->p16v_interrupt(emu);
+			else
+				outl(0, emu->port + INTE2);
+			status &= ~IPR_P16V;
+		}
+		if (status & IPR_A_GPIO) {
+			if (emu->gpio_interrupt)
+				emu->gpio_interrupt(emu);
+			else
+				snd_emu10k1_intr_disable(emu, INTE_A_GPIOENABLE);
+			status &= ~IPR_A_GPIO;
+		}
+
+		if (status) {
+			dev_err(emu->card->dev,
+				"unhandled interrupt: 0x%08x\n", status);
+		}
+		outl(orig_status, emu->port + IPR); /* ack all */
+	}
+
+	return IRQ_RETVAL(handled);
+}