ESS audio driver ported from NetBSD, some mixer problems with X-based mixers

otherwise OK (mixerctl works quite OK, very strange).
At the moment it is polled only, but it works quite OK that way too.

1 files changed, 159 insertions, 0 deletions

diff --git a/sys/dev/isa/essvar.h b/sys/dev/isa/essvar.h
new file mode 100644
index 00000000000..d48b129302f
--- /dev/null
+++ b/sys/dev/isa/essvar.h
@@ -0,0 +1,159 @@
+/*	$OpenBSD: essvar.h,v 1.1 1999/06/22 16:20:03 niklas Exp $	*/
+/*	$NetBSD: essvar.h,v 1.14 1999/03/18 06:03:31 mycroft Exp $	*/
+/*
+ * Copyright 1997
+ * Digital Equipment Corporation. All rights reserved.
+ *
+ * This software is furnished under license and may be used and
+ * copied only in accordance with the following terms and conditions.
+ * Subject to these conditions, you may download, copy, install,
+ * use, modify and distribute this software in source and/or binary
+ * form. No title or ownership is transferred hereby.
+ *
+ * 1) Any source code used, modified or distributed must reproduce
+ *    and retain this copyright notice and list of conditions as
+ *    they appear in the source file.
+ *
+ * 2) No right is granted to use any trade name, trademark, or logo of
+ *    Digital Equipment Corporation. Neither the "Digital Equipment
+ *    Corporation" name nor any trademark or logo of Digital Equipment
+ *    Corporation may be used to endorse or promote products derived
+ *    from this software without the prior written permission of
+ *    Digital Equipment Corporation.
+ *
+ * 3) This software is provided "AS-IS" and any express or implied
+ *    warranties, including but not limited to, any implied warranties
+ *    of merchantability, fitness for a particular purpose, or
+ *    non-infringement are disclaimed. In no event shall DIGITAL be
+ *    liable for any damages whatsoever, and in particular, DIGITAL
+ *    shall not be liable for special, indirect, consequential, or
+ *    incidental damages or damages for lost profits, loss of
+ *    revenue or loss of use, whether such damages arise in contract,
+ *    negligence, tort, under statute, in equity, at law or otherwise,
+ *    even if advised of the possibility of such damage.
+ */
+
+/*
+** @(#) $RCSfile: essvar.h,v $ $Revision: 1.1 $ (SHARK) $Date: 1999/06/22 16:20:03 $
+**
+**++
+**
+**  essvar.h
+**
+**  FACILITY:
+**
+**	DIGITAL Network Appliance Reference Design (DNARD)
+**
+**  MODULE DESCRIPTION:
+**
+**      This module contains the structure definitions and function
+**      prototypes for the ESS Technologies 1887/888 sound chip
+**      driver.
+**
+**  AUTHORS:
+**
+**	Blair Fidler	Software Engineering Australia
+**			Gold Coast, Australia.
+**
+**  CREATION DATE:  
+**
+**	May 12, 1997.
+**
+**  MODIFICATION HISTORY:
+**
+**--
+*/
+#define ESS_DAC_PLAY_VOL	0
+#define ESS_MIC_PLAY_VOL	1
+#define ESS_LINE_PLAY_VOL	2
+#define ESS_SYNTH_PLAY_VOL	3
+#define ESS_CD_PLAY_VOL		4
+#define ESS_AUXB_PLAY_VOL	5
+#define ESS_INPUT_CLASS		6
+
+#define ESS_MASTER_VOL		7
+#define ESS_PCSPEAKER_VOL	8
+#define ESS_OUTPUT_CLASS	9
+
+#define ESS_RECORD_MONITOR	10
+#define ESS_MONITOR_CLASS	11
+
+#define ESS_RECORD_VOL		12
+#define	ESS_RECORD_SOURCE	13
+#define ESS_RECORD_CLASS	14
+
+#define ESS_1788_NDEVS		15
+
+#define ESS_DAC_REC_VOL		15
+#define ESS_MIC_REC_VOL		16
+#define ESS_LINE_REC_VOL	17
+#define ESS_SYNTH_REC_VOL	18
+#define ESS_CD_REC_VOL		19
+#define ESS_AUXB_REC_VOL	20
+#define ESS_MIC_PREAMP		21
+
+#define ESS_1888_NDEVS		22
+#define ESS_MAX_NDEVS		22
+
+struct ess_audio_channel
+{
+	int	drq;			/* DMA channel */
+#define IS16BITDRQ(drq) ((drq) >= 4)
+	int	irq;			/* IRQ line for this DMA channel */
+	int	ist;
+	void	*ih;			/* interrupt vectoring */
+	u_long	nintr;			/* number of interrupts taken */
+	void	(*intr)__P((void*));	/* ISR for DMA complete */
+	void	*arg;			/* arg for intr() */
+
+	/* Status information */
+	int	active;			/* boolean: channel in use? */
+
+	/* Polling state */
+	int	polled;			/* 1 if channel is polled */
+	int	dmapos;			/* last DMA pointer */
+	int	buffersize;		/* size of DMA buffer */
+	/* (The following is only needed due to the stupid block interface.) */
+	int	dmacount;		/* leftover partial block */
+	int	blksize;		/* current block size */
+};
+
+struct ess_softc
+{
+	struct	device sc_dev;		/* base device */
+	struct	device *sc_isa;
+	isa_chipset_tag_t sc_ic;
+	bus_space_tag_t sc_iot;		/* tag */
+	bus_space_handle_t sc_ioh;	/* handle */
+
+	int	sc_iobase;		/* I/O port base address */
+
+	u_short	sc_open;		/* reference count of open calls */
+
+	int ndevs; 
+	u_char	gain[ESS_MAX_NDEVS][2];	/* kept in input levels */
+#define ESS_LEFT 0
+#define ESS_RIGHT 1
+	
+	u_int	out_port;		/* output port */
+	u_int	in_mask;		/* input ports */
+	u_int	in_port;		/* XXX needed for MI interface */
+
+	u_int	spkr_state;		/* non-null is on */
+	
+	struct ess_audio_channel sc_audio1; /* audio channel for record */
+	struct ess_audio_channel sc_audio2; /* audio channel for playback */
+
+	u_int	sc_model;
+#define ESS_UNSUPPORTED 0
+#define ESS_1888	1
+#define ESS_1887	2
+#define ESS_888		3
+#define ESS_1788	4
+
+	u_int	sc_version;		/* Legacy ES688/ES1688 ID */
+};
+
+int	essmatch __P((struct ess_softc *));
+void	essattach __P((struct ess_softc *));
+