8a962f23f2
the original ad-audiomp branch notes: Add MP locking to the audio drivers. Making the audio drivers MP safe is necessary before efforts can be made to make the VM system MP safe. The are two locks per device instance, an ISR lock and a character device lock. The ISR lock replaces calls to splaudio()/splx(), and will be held across calls to device methods which were called at splaudio() before (e.g. trigger_output). The character device lock is held across calls to nearly all of the methods, excluding some only used for initialization, e.g. get_locks. Welcome to 5.99.57.
213 lines
6.1 KiB
C
213 lines
6.1 KiB
C
/* $NetBSD: cs428x.h,v 1.15 2011/11/23 23:07:35 jmcneill Exp $ */
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/*
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* Copyright (c) 2000 Tatoku Ogaito. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Tatoku Ogaito
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* for the NetBSD Project.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/* Common functions and variables for CS4280 and CS4281 */
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#ifndef _CS428X_H_
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#define _CS428X_H_
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#define PCI_BA0 (0x10)
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#define PCI_BA1 (0x14)
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#define CS428X_SAVE_REG_MAX (0x10)
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#define TYPE_CS4280 (0x4280)
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#define TYPE_CS4281 (0x4281)
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#define BA0READ4(sc, r) bus_space_read_4((sc)->ba0t, (sc)->ba0h, (r))
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#define BA0WRITE4(sc, r, x) bus_space_write_4((sc)->ba0t, (sc)->ba0h, (r), (x))
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/* DMA */
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struct cs428x_dma {
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bus_dmamap_t map;
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void *addr; /* real DMA buffer */
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void *dum; /* dummy buffer for audio driver */
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bus_dma_segment_t segs[1];
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int nsegs;
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size_t size;
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struct cs428x_dma *next;
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};
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#define DMAADDR(p) ((p)->map->dm_segs[0].ds_addr)
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#define KERNADDR(p) ((void *)((p)->addr)) /* buffer for real DMA */
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#define BUFADDR(p) ((void *)((p)->dum)) /* buffer for audio driver */
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/*
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* Flags (currently used only for CS4280)
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*/
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enum cs428x_flags {
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CS428X_FLAG_NONE = 0x0,
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CS428X_FLAG_INVAC97EAMP = 0x1, /* inverted AC97 external amp */
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CS428X_FLAG_CLKRUNHACK = 0x2 /* needs CLKRUN hack */
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};
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/*
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* Software state
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*/
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struct cs428x_softc {
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struct device sc_dev;
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kmutex_t sc_lock;
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kmutex_t sc_intr_lock;
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pci_chipset_tag_t sc_pc;
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pcitag_t sc_pt;
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pci_intr_handle_t * sc_ih;
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pci_intr_handle_t intrh;
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/* I/O (BA0) */
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bus_space_tag_t ba0t;
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bus_space_handle_t ba0h;
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/* BA1 */
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bus_space_tag_t ba1t;
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bus_space_handle_t ba1h;
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/* DMA */
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bus_dma_tag_t sc_dmatag;
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struct cs428x_dma *sc_dmas;
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size_t dma_size;
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size_t dma_align;
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int hw_blocksize;
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int type;
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/* playback */
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void (*sc_pintr)(void *); /* DMA completion intr handler */
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void *sc_parg; /* arg for sc_intr() */
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char *sc_ps, *sc_pe, *sc_pn;
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int sc_pcount;
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int sc_pi;
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struct cs428x_dma *sc_pdma;
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char *sc_pbuf;
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int (*halt_output)(void *);
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char sc_prun; /* playback status */
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int sc_prate; /* playback sample rate */
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/* capturing */
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void (*sc_rintr)(void *); /* DMA completion intr handler */
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void *sc_rarg; /* arg for sc_intr() */
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char *sc_rs, *sc_re, *sc_rn;
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int sc_rcount;
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int sc_ri;
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struct cs428x_dma *sc_rdma;
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char *sc_rbuf;
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int sc_rparam; /* record format */
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int (*halt_input)(void *);
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char sc_rrun; /* recording status */
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int sc_rrate; /* recording sample rate */
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/* Although cs4281 does not support midi (yet),
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* don't remove these definition.
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*/
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void (*sc_iintr)(void *, int); /* midi input ready handler */
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void (*sc_ointr)(void *); /* midi output ready handler */
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void *sc_arg;
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/*
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* XXX
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* Actually these 3 variables are needed only for CS4280.
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*/
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enum cs428x_flags sc_flags;
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uint32_t pctl;
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uint32_t cctl;
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/* AC97 CODEC */
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struct ac97_codec_if *codec_if;
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struct ac97_host_if host_if;
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/* Power Management */
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union {
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struct {
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uint32_t pctl;
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uint32_t pba;
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uint32_t pfie;
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uint32_t pdtc;
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uint32_t cctl;
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uint32_t cba;
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uint32_t cie;
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} cs4280;
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struct {
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uint32_t dba0;
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uint32_t dbc0;
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uint32_t dmr0;
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uint32_t dcr0;
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uint32_t dba1;
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uint32_t dbc1;
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uint32_t dmr1;
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uint32_t dcr1;
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} cs4281;
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} sc_suspend_state;
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/* CLKRUN hack (CS428X_FLAG_CLKRUN), only for CS4280 */
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int sc_active;
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bus_space_tag_t sc_pm_iot;
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bus_space_handle_t sc_pm_ioh;
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};
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int cs428x_round_blocksize(void *, int, int, const audio_params_t *);
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int cs428x_get_props(void *);
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int cs428x_attach_codec(void *, struct ac97_codec_if *);
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int cs428x_read_codec(void *, u_int8_t, u_int16_t *);
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int cs428x_write_codec(void *, u_int8_t, u_int16_t);
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int cs428x_mixer_set_port(void *, mixer_ctrl_t *);
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int cs428x_mixer_get_port(void *, mixer_ctrl_t *);
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int cs428x_query_devinfo(void *, mixer_devinfo_t *);
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void *cs428x_malloc(void *, int, size_t);
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size_t cs428x_round_buffersize(void *, int, size_t);
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void cs428x_free(void *, void *, size_t);
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paddr_t cs428x_mappage(void *, void *, off_t, int);
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void cs428x_get_locks(void *, kmutex_t **, kmutex_t **);
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/* internal functions */
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int cs428x_allocmem(struct cs428x_softc *, size_t, struct cs428x_dma *);
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int cs428x_src_wait(struct cs428x_softc *);
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/* DEBUG */
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/* #define CS4280_DEBUG */
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/* #define CS4281_DEBUG */
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#if defined(CS4280_DEBUG) || defined(CS4281_DEBUG)
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#define DPRINTF(x) if (cs428x_debug) printf x
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#define DPRINTFN(n,x) if (cs428x_debug>(n)) printf x
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extern int cs428x_debug;
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#if CS4280_DEBUG + 0 == 0
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#undef CS4280_DEBUG
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#define CS4280_DEBUG 0
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#endif
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#else
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#define DPRINTF(x)
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#define DPRINTFN(n,x)
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#endif
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#endif /* _CS428X_H_ */
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