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.
89 lines
2.0 KiB
C
89 lines
2.0 KiB
C
/* $NetBSD: eapvar.h,v 1.4 2011/11/23 23:07:35 jmcneill Exp $ */
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#include <dev/pci/pcivar.h>
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#include <dev/ic/ac97var.h>
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struct eap_gameport_args {
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bus_space_tag_t gpa_iot;
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bus_space_handle_t gpa_ioh;
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};
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struct eap_dma {
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bus_dmamap_t map;
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void *addr;
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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 eap_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))
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/*
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* The card has two DACs. Using them is a bit twisted: we use DAC2
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* as default and DAC1 as the optional secondary DAC.
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*/
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#define EAP_DAC1 1
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#define EAP_DAC2 0
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#define EAP_I1 EAP_DAC2
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#define EAP_I2 EAP_DAC1
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struct eap_instance {
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device_t parent;
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int index;
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void (*ei_pintr)(void *); /* DMA completion intr handler */
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void *ei_parg; /* arg for ei_intr() */
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device_t ei_audiodev; /* audio device, for detach */
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#ifdef DIAGNOSTIC
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char ei_prun;
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#endif
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};
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struct eap_softc {
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device_t sc_dev; /* base device */
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void *sc_ih; /* interrupt vectoring */
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bus_space_tag_t iot;
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bus_space_handle_t ioh;
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bus_size_t iosz;
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bus_dma_tag_t sc_dmatag; /* DMA tag */
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kmutex_t sc_intr_lock;
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kmutex_t sc_lock;
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struct eap_dma *sc_dmas;
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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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#ifdef DIAGNOSTIC
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char sc_rrun;
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#endif
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#if NMIDI > 0
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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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device_t sc_mididev;
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#endif
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#if NJOY_EAP > 0
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device_t sc_gameport;
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#endif
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u_short sc_port[AK_NPORTS]; /* mirror of the hardware setting */
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u_int sc_record_source; /* recording source mask */
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u_int sc_input_source; /* input source mask */
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u_int sc_mic_preamp;
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char sc_1371; /* Using ES1371/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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struct eap_instance sc_ei[2];
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pci_chipset_tag_t sc_pc; /* For detach */
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};
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device_t eap_joy_attach(device_t, struct eap_gameport_args *);
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int eap_joy_detach(device_t, struct eap_gameport_args *);
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