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      1 /* $NetBSD: auixpvar.h,v 1.11 2021/08/20 20:25:28 andvar Exp $*/
      2 
      3 /*
      4  * Copyright (c) 2004, 2005 Reinoud Zandijk <reinoud (at) netbsd.org>
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. The name of the author may not be used to endorse or promote products
     13  *    derived from this software without specific prior written permission.
     14  *
     15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     20  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     21  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     22  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     23  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     25  * SUCH DAMAGE.
     26  */
     27 
     28 
     29 /*
     30  * NetBSD audio driver for ATI IXP-{150,200,...} audio driver hardware.
     31  */
     32 
     33 #define DMA_DESC_CHAIN	255
     34 
     35 
     36 /* audio format structure describing our hardware capabilities */
     37 /* XXX min and max sample rates are for AD1888 codec XXX */
     38 #define AUIXP_NFORMATS 3
     39 
     40 
     41 #define AUIXP_MINRATE  7000
     42 #define AUIXP_MAXRATE 48000
     43 
     44 
     45 /* auixp structures; used to record alloced DMA space */
     46 struct auixp_dma {
     47 	/* bus mappings */
     48 	bus_dmamap_t		 map;
     49 	void *			 addr;
     50 	bus_dma_segment_t	 segs[1];
     51 	int			 nsegs;
     52 	size_t			 size;
     53 
     54 	/* audio feeder */
     55 	void			 (*intr)(void *);	/* function to call when there is space */
     56 	void			*intrarg;
     57 
     58 	/* status and setup bits */
     59 	int			 running;
     60 	uint32_t		 linkptr;
     61 	uint32_t		 dma_enable_bit;
     62 
     63 	/* linked list of all mapped area's */
     64 	SLIST_ENTRY(auixp_dma)	 dma_chain;
     65 };
     66 
     67 
     68 struct auixp_codec {
     69 	struct auixp_softc	*sc;
     70 
     71 	int			 present;
     72 	int			 codec_nr;
     73 
     74 	struct ac97_codec_if	*codec_if;
     75 	struct ac97_host_if	 host_if;
     76 	enum ac97_host_flags	 codec_flags;
     77 };
     78 
     79 
     80 struct auixp_softc {
     81 	device_t		sc_dev;
     82 	kmutex_t		sc_lock;
     83 	kmutex_t		sc_intr_lock;
     84 
     85 	/* card id */
     86 	int			type;
     87 	int			delay1, delay2;		/* necessary? */
     88 
     89 	/* card properties */
     90 	int			has_4ch, has_6ch, is_fixed, has_spdif;
     91 
     92 	/* bus tags */
     93 	bus_space_tag_t		sc_iot;
     94 	bus_space_handle_t	sc_ioh;
     95 	bus_addr_t		sc_iob;
     96 	bus_size_t		sc_ios;
     97 
     98 	pcitag_t		sc_tag;
     99 	pci_chipset_tag_t	sc_pct;
    100 
    101 	bus_dma_tag_t		sc_dmat;
    102 
    103 	/* interrupts */
    104 	void			*sc_ih;
    105 
    106 	/* DMA business */
    107 	struct auixp_dma	*sc_output_dma;		/* contains dma-safe chain */
    108 	struct auixp_dma	*sc_input_dma;
    109 
    110 	/* list of allocated DMA pieces */
    111 	SLIST_HEAD(auixp_dma_list, auixp_dma) sc_dma_list;
    112 
    113 	/* audio formats supported */
    114 	struct audio_format sc_formats[AUIXP_NFORMATS];
    115 
    116 	/* codecs */
    117 	int			sc_num_codecs;
    118 	struct auixp_codec	sc_codec[ATI_IXP_CODECS];
    119 	int			sc_codec_not_ready_bits;
    120 
    121 	/* last set audio parameters */
    122 	struct audio_params	sc_play_params;
    123 	struct audio_params	sc_rec_params;
    124 };
    125 
    126 
    127