Work-in-progress driver for the HP ``Audio1'' device found on the HP 9000/425e

(hp300) and the HP9000/705 and 9000/710 (hppa). 8-bit mono, 8KHz, no surprise
since it is based upon a digital phone chip.
Tested on 425e only so far, and playback only; configured in, but disabled,
on hppa kernels until there are positive test reports (I am not sure the
interrupt assignment on hppa is correct).
And now people no longer can joke about audio on hp300.

1 files changed, 105 insertions, 0 deletions

diff --git a/sys/arch/hp300/dev/arcofi_dio.c b/sys/arch/hp300/dev/arcofi_dio.c
new file mode 100644
index 00000000000..56b07af0137
--- /dev/null
+++ b/sys/arch/hp300/dev/arcofi_dio.c
@@ -0,0 +1,105 @@
+/*	$OpenBSD: arcofi_dio.c,v 1.1 2011/12/21 23:12:03 miod Exp $	*/
+
+/*
+ * Copyright (c) 2011 Miodrag Vallat.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/conf.h>
+#include <sys/device.h>
+
+#include <machine/autoconf.h>
+#include <machine/bus.h>
+#include <machine/intr.h>
+
+#include <sys/audioio.h>
+#include <dev/audio_if.h>
+#include <dev/ic/arcofivar.h>
+
+#include <hp300/dev/dioreg.h>
+#include <hp300/dev/diovar.h>
+
+#include <hp300/dev/diodevs.h>
+
+void	arcofi_dio_attach(struct device *, struct device *, void *);
+int	arcofi_dio_match(struct device *, void *, void *);
+
+struct arcofi_dio_softc {
+	struct arcofi_softc	sc_arcofi;
+
+	struct isr		sc_isr;
+};
+
+const struct cfattach arcofi_dio_ca = {
+	sizeof(struct arcofi_dio_softc),
+	arcofi_dio_match,
+	arcofi_dio_attach
+};
+
+extern struct hp300_bus_space_tag hp300_mem_tag; /* XXX */
+
+int
+arcofi_dio_match(struct device *parent, void *match, void *vaa)
+{
+	struct dio_attach_args *da = vaa;
+
+	if (da->da_id != DIO_DEVICE_ID_AUDIO)
+		return 0;
+
+	return 1;
+}
+
+void
+arcofi_dio_attach(struct device *parent, struct device *self, void *vaa)
+{
+	struct arcofi_dio_softc *adsc = (struct arcofi_dio_softc *)self;
+	struct arcofi_softc *sc = &adsc->sc_arcofi;
+	struct dio_attach_args *da = vaa;
+	bus_addr_t base;
+	unsigned int u;
+	int ipl;
+
+	for (u = 0; u < ARCOFI_NREGS; u++)
+		sc->sc_reg[u] = (u << 1) | 0x01;
+
+	base = (bus_addr_t)dio_scodetopa(da->da_scode);
+	sc->sc_iot = &hp300_mem_tag;
+	/*
+	 * XXX We request BUS_SPACE_MAP_LINEAR only to be able to use DIO_IPL
+	 * XXX below; this ought to be provided in the attach_args
+	 */
+	if (bus_space_map(sc->sc_iot, base, DIOII_SIZEOFF, BUS_SPACE_MAP_LINEAR,
+	    &sc->sc_ioh) != 0) {
+		printf(": can't map registers\n");
+		return;
+	}
+	ipl = DIO_IPL(bus_space_vaddr(sc->sc_iot, sc->sc_ioh));
+
+	sc->sc_sih = softintr_establish(IPL_SOFT, &arcofi_swintr, sc);
+	if (sc->sc_sih == NULL) {
+		printf(": can't register soft interrupt\n");
+		return;
+	}
+	adsc->sc_isr.isr_func = arcofi_hwintr;
+	adsc->sc_isr.isr_arg = sc;
+	adsc->sc_isr.isr_ipl = ipl;
+	adsc->sc_isr.isr_priority = IPL_AUDIO;
+	dio_intr_establish(&adsc->sc_isr, self->dv_xname);
+
+	printf(" ipl %d\n", ipl);
+
+	arcofi_attach(sc, "dio");
+}