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      1 /*	$NetBSD: emuxkivar.h,v 1.16 2022/09/07 03:34:43 khorben Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2001, 2007 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Yannick Montulet, and by Andrew Doran.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #ifndef _DEV_PCI_EMUXKIVAR_H_
     33 #define _DEV_PCI_EMUXKIVAR_H_
     34 
     35 #include <sys/types.h>
     36 #include <sys/device.h>
     37 #include <sys/audioio.h>
     38 #include <sys/mutex.h>
     39 
     40 #include <sys/bus.h>
     41 
     42 #include <dev/audio/audio_if.h>
     43 
     44 #include <dev/ic/ac97reg.h>
     45 #include <dev/ic/ac97var.h>
     46 
     47 #include <dev/pci/pcidevs.h>
     48 #include <dev/pci/pcireg.h>
     49 #include <dev/pci/pcivar.h>
     50 
     51 #define EMU_PTESIZE		(4096)
     52 #define EMU_MINPTE		(3)
     53 /*
     54  * Hardware limit of PTE is 4096 entry but it's too big for single voice.
     55  * Reasonable candidate is:
     56  *  48kHz * 2ch * 2byte * 1sec * 3buf/EMU_PTESIZE = 141
     57  * and then round it up to 2^n.
     58  */
     59 #define EMU_MAXPTE		(256)
     60 #define EMU_NUMCHAN		(64)
     61 
     62 /*
     63  * Internal recording DMA buffer
     64  */
     65 /* Recommend the same size as EMU_PTESIZE to be symmetrical for play/rec */
     66 #define EMU_REC_DMABLKSIZE	(4096)
     67 /* must be EMU_REC_DMABLKSIZE * 2 */
     68 #define EMU_REC_DMASIZE		(8192)
     69 /* must be EMU_RECBS_BUFSIZE_(EMU_REC_DMASIZE) */
     70 #define EMU_REC_BUFSIZE_RECBS	EMU_RECBS_BUFSIZE_8192
     71 
     72 /*
     73  * DMA memory management
     74  */
     75 
     76 #define EMU_DMA_ALIGN		(4096)
     77 #define EMU_DMA_NSEGS		(1)
     78 
     79 struct dmamem {
     80 	bus_dma_tag_t		dmat;
     81 	bus_size_t		size;
     82 	bus_size_t		align;
     83 	bus_size_t		bound;
     84 	bus_dma_segment_t	*segs;
     85 	int			nsegs;
     86 	int			rsegs;
     87 	void *			kaddr;
     88 	bus_dmamap_t		map;
     89 };
     90 
     91 #define KERNADDR(ptr)		((void *)((ptr)->kaddr))
     92 /*
     93  * (ptr)->segs[] is CPU's PA translated by CPU's MMU.
     94  * (ptr)->map->dm_segs[] is PCI device's PA translated by PCI's MMU.
     95  */
     96 #define DMASEGADDR(ptr, segno)	((ptr)->map->dm_segs[segno].ds_addr)
     97 #define DMAADDR(ptr)		DMASEGADDR(ptr, 0)
     98 #define DMASIZE(ptr)		((ptr)->size)
     99 
    100 struct emuxki_softc {
    101 	device_t		sc_dev;
    102 	device_t		sc_audev;
    103 	enum {
    104 		EMUXKI_SBLIVE = 0x00,
    105 		EMUXKI_AUDIGY = 0x01,
    106 		EMUXKI_AUDIGY2 = 0x02,
    107 		EMUXKI_AUDIGY2_CA0108 = 0x04,
    108 		EMUXKI_LIVE_5_1 = 0x08,
    109 		EMUXKI_APS = 0x10
    110 	} sc_type;
    111 	audio_device_t		sc_audv;	/* for GETDEV */
    112 
    113 	/* Autoconfig parameters */
    114 	bus_space_tag_t		sc_iot;
    115 	bus_space_handle_t	sc_ioh;
    116 	bus_addr_t		sc_iob;
    117 	bus_size_t		sc_ios;
    118 	pci_chipset_tag_t	sc_pc;		/* PCI tag */
    119 	bus_dma_tag_t		sc_dmat;
    120 	void			*sc_ih;		/* interrupt handler */
    121 	kmutex_t		sc_intr_lock;
    122 	kmutex_t		sc_lock;
    123 	kmutex_t		sc_index_lock;
    124 
    125 	/* register parameters */
    126 	struct dmamem		*ptb;		/* page table */
    127 
    128 	struct dmamem		*pmem;		/* play memory */
    129 	void			(*pintr)(void *);
    130 	void			*pintrarg;
    131 	audio_params_t		play;
    132 	uint32_t		pframesize;
    133 	uint32_t		pblksize;
    134 	uint32_t		plength;
    135 	uint32_t		poffset;
    136 
    137 	struct dmamem		*rmem;		/* rec internal memory */
    138 	void			(*rintr)(void *);
    139 	void			*rintrarg;
    140 	audio_params_t		rec;
    141 	void			*rptr;		/* rec MI ptr */
    142 	int			rcurrent;	/* rec software trans count */
    143 	int			rframesize;
    144 	int			rblksize;
    145 	int			rlength;
    146 	int			roffset;
    147 
    148 	/* others */
    149 
    150 	struct ac97_host_if	hostif;
    151 	struct ac97_codec_if	*codecif;
    152 };
    153 
    154 #endif /* _DEV_PCI_EMUXKIVAR_H_ */
    155