284103af4a
fancy, works for the basic output case, but does not support programs which use playback while going into suspend. Sketched after code found in FreeBSD and Linux drivers.
96 lines
2.5 KiB
C
96 lines
2.5 KiB
C
/* $NetBSD: esavar.h,v 1.3 2002/01/13 10:06:51 pooka Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 2001, 2002 Jared D. McNeill <jmcneill@invisible.yi.org>
|
|
* 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. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
|
|
*/
|
|
|
|
/*
|
|
* ESS Allegro-1 / Maestro3 Audio Driver
|
|
*
|
|
* Based on the FreeBSD maestro3 driver
|
|
*
|
|
*/
|
|
|
|
#define KERNADDR(p) ((void *)((p)->addr))
|
|
#define DMAADDR(p) ((p)->map->dm_segs[0].ds_addr)
|
|
|
|
#define ESA_MINRATE 8000
|
|
#define ESA_MAXRATE 48000
|
|
|
|
struct esa_dma {
|
|
bus_dmamap_t map;
|
|
caddr_t addr;
|
|
bus_dma_segment_t segs[1];
|
|
int nsegs;
|
|
size_t size;
|
|
struct esa_dma *next;
|
|
};
|
|
|
|
struct esa_channel {
|
|
int active;
|
|
int data_offset;
|
|
size_t bufsize;
|
|
int blksize;
|
|
int pos;
|
|
void *buf;
|
|
u_int32_t start;
|
|
u_int32_t count;
|
|
struct esa_dma *dma;
|
|
|
|
void (*intr)(void *);
|
|
void *arg;
|
|
};
|
|
|
|
struct esa_softc
|
|
{
|
|
struct device sc_dev;
|
|
bus_space_tag_t sc_iot;
|
|
bus_space_handle_t sc_ioh;
|
|
bus_addr_t sc_iob;
|
|
bus_size_t sc_ios;
|
|
|
|
pcitag_t sc_tag;
|
|
pci_chipset_tag_t sc_pct;
|
|
bus_dma_tag_t sc_dmat;
|
|
pcireg_t sc_pcireg;
|
|
|
|
void *sc_ih;
|
|
|
|
struct ac97_codec_if *codec_if;
|
|
struct ac97_host_if host_if;
|
|
enum ac97_host_flags codec_flags;
|
|
|
|
struct device *sc_audiodev;
|
|
|
|
struct esa_channel play;
|
|
struct esa_channel rec;
|
|
struct esa_dma *sc_dmas;
|
|
|
|
int type; /* Allegro-1 or Maestro 3? */
|
|
int delay1, delay2;
|
|
|
|
void *powerhook;
|
|
u_int16_t *savemem;
|
|
};
|