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, 49 insertions, 0 deletions

diff --git a/sys/dev/ic/arcofivar.h b/sys/dev/ic/arcofivar.h
new file mode 100644
index 00000000000..ddfd83c2e25
--- /dev/null
+++ b/sys/dev/ic/arcofivar.h
@@ -0,0 +1,49 @@
+/*	$OpenBSD: arcofivar.h,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.
+ */
+
+#define	ARCOFI_NREGS		6
+
+struct arcofi_softc {
+	struct device		sc_dev;
+	bus_addr_t		sc_reg[ARCOFI_NREGS];
+	bus_space_tag_t		sc_iot;
+	bus_space_handle_t	sc_ioh;
+
+	struct audio_device	sc_audio_device;
+	void			*sc_sih;
+
+	int			sc_open;
+	int			sc_mode;
+
+	struct {
+		uint8_t	cr3, cr4;
+		uint	gr_idx, gx_idx;
+	}			sc_active,
+				sc_shadow;
+	struct {
+		uint8_t	*buf;
+		uint8_t	*past;
+		void	(*cb)(void *);
+		void	*cbarg;
+	}			sc_recv,
+				sc_xmit;
+};
+
+void	arcofi_attach(struct arcofi_softc *, const char *);
+int	arcofi_hwintr(void *);
+void	arcofi_swintr(void *);