Driver for C-Media CMI8x38 Audio Chip present on several all-in-one

motherboards (ie: bultin audio + video).  Written by Takuya SHIOZAKI.

1 files changed, 128 insertions, 0 deletions

diff --git a/sys/dev/pci/cmpcivar.h b/sys/dev/pci/cmpcivar.h
new file mode 100644
index 00000000000..ff25718983a
--- /dev/null
+++ b/sys/dev/pci/cmpcivar.h
@@ -0,0 +1,128 @@
+/*	$OpenBSD: cmpcivar.h,v 1.1 2000/04/27 02:19:41 millert Exp $	*/
+
+/*
+ * Copyright (c) 2000 Takuya SHIOZAKI
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+/* C-Media CMI8x38 Audio Chip Support */
+
+/*
+ * DMA pool
+ */
+struct cmpci_dmanode {
+	bus_dma_tag_t         cd_tag;
+	int                   cd_nsegs;
+	bus_dma_segment_t     cd_segs[1];
+	bus_dmamap_t          cd_map;
+	caddr_t               cd_addr;
+	size_t                cd_size;
+	struct cmpci_dmanode *cd_next;
+};
+
+typedef struct cmpci_dmanode *cmpci_dmapool_t;
+#define KVADDR(dma)  ((void *)(dma)->cd_addr)
+#define DMAADDR(dma) ((dma)->cd_map->dm_segs[0].ds_addr)
+
+
+/*
+ * Mixer - SoundBraster16 Compatible
+ */
+#define CMPCI_MASTER_VOL		0
+#define CMPCI_FM_VOL			1
+#define CMPCI_CD_VOL			2
+#define CMPCI_VOICE_VOL			3
+#define CMPCI_OUTPUT_CLASS		4
+
+#define CMPCI_MIC_VOL			5
+#define CMPCI_LINE_IN_VOL		6
+#define CMPCI_RECORD_SOURCE		7
+#define CMPCI_TREBLE			8
+#define CMPCI_BASS			9
+#define CMPCI_RECORD_CLASS		10
+#define CMPCI_INPUT_CLASS		11
+
+#define CMPCI_PCSPEAKER			12
+#define CMPCI_INPUT_GAIN		13
+#define CMPCI_OUTPUT_GAIN		14
+#define CMPCI_AGC			15
+#define CMPCI_EQUALIZATION_CLASS	16
+
+#define CMPCI_CD_IN_MUTE		17
+#define CMPCI_MIC_IN_MUTE		18
+#define CMPCI_LINE_IN_MUTE		19
+#define CMPCI_FM_IN_MUTE		20
+
+#define CMPCI_CD_SWAP			21
+#define CMPCI_MIC_SWAP			22
+#define CMPCI_LINE_SWAP			23
+#define CMPCI_FM_SWAP			24
+
+#define CMPCI_CD_OUT_MUTE		25
+#define CMPCI_MIC_OUT_MUTE		26
+#define CMPCI_LINE_OUT_MUTE		27
+
+#ifdef CMPCI_SPDIF_SUPPORT
+#define CMPCI_SPDIF_IN			28
+#define CMPCI_SPDIF_IN_MUTE		29
+#define CmpciNspdif			"spdif"
+#define CMPCI_NDEVS			30
+#else
+#define CMPCI_NDEVS			28
+#endif
+
+#define CMPCI_IS_IN_MUTE(x) ((x) < CMPCI_CD_SWAP)
+
+
+/*
+ * softc
+ */
+struct cmpci_softc {
+	struct device sc_dev;
+
+	/* I/O Base device */
+	bus_space_tag_t     sc_iot;
+	bus_space_handle_t  sc_ioh;
+
+	/* intr handle */
+	pci_intr_handle_t * sc_ih;
+
+	/* DMA */
+	bus_dma_tag_t       sc_dmat;
+	cmpci_dmapool_t     sc_dmap;
+
+	/* each channel */
+	struct {
+		void (*intr) __P((void *));
+		void *intr_arg;
+	} sc_play, sc_rec;
+
+	/* mixer */
+	uint8_t gain[CMPCI_NDEVS][2];
+#define CMPCI_LEFT 0
+#define CMPCI_RIGHT 1
+#define CMPCI_LR 0
+	uint16_t in_mask;
+};