172 lines
5.3 KiB
C
172 lines
5.3 KiB
C
/* $NetBSD: dbrivar.h,v 1.4 2006/03/09 20:44:18 macallan Exp $ */
|
|
|
|
/*
|
|
* Copyright (C) 1997 Rudolf Koenig (rfkoenig@immd4.informatik.uni-erlangen.de)
|
|
* Copyright (c) 1998, 1999 Brent Baccala (baccala@freesoft.org)
|
|
* Copyright (c) 2001, 2002 Jared D. McNeill <jmcneill@netbsd.org>
|
|
* Copyright (c) 2005 Michael Lorenz <macallan@netbsd.org>
|
|
* All rights reserved.
|
|
*
|
|
* This driver is losely based on a Linux driver written by Rudolf Koenig and
|
|
* Brent Baccala who kindly gave their permission to use their code in a
|
|
* BSD-licensed driver.
|
|
*
|
|
* 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. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by Rudolf Koenig, Brent
|
|
* Baccala, Jared D. McNeill.
|
|
* 4. Neither the name of the author nor the names of any contributors may
|
|
* be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
|
|
*
|
|
*/
|
|
|
|
#ifndef DBRI_VAR_H
|
|
#define DBRI_VAR_H
|
|
|
|
#define DBRI_NUM_COMMANDS 64
|
|
#define DBRI_NUM_DESCRIPTORS 64
|
|
#define DBRI_INT_BLOCKS 64
|
|
|
|
#define DBRI_PIPE_MAX 32
|
|
|
|
enum direction {
|
|
in,
|
|
out
|
|
};
|
|
|
|
/* DBRI DMA transmit descriptor */
|
|
struct dbri_mem {
|
|
volatile uint32_t flags;
|
|
#define TX_EOF 0x80000000 /* End of frame marker */
|
|
#define TX_BCNT(x) ((x&0x3fff)<<16)
|
|
#define TX_BINT 0x00008000 /* interrupt when EOF */
|
|
#define TX_MINT 0x00004000 /* marker interrupt */
|
|
#define TX_IDLE 0x00002000 /* send idles after data */
|
|
#define TX_FCNT(x) (x&0x1fff)
|
|
|
|
volatile uint32_t ba; /* tx/rx buffer address */
|
|
volatile uint32_t nda; /* next descriptor address */
|
|
volatile uint32_t status;
|
|
#define TS_OK 0x0001 /* transmission completed */
|
|
#define TS_ABORT 0x0004 /* transmission aborted */
|
|
#define TS_UNDERRUN 0x0008 /* DMA underrun */
|
|
};
|
|
|
|
struct dbri_pipe {
|
|
uint32_t sdp; /* SDP command word */
|
|
enum direction direction;
|
|
int next; /* next pipe in linked list */
|
|
int prev; /* previous pipe in linked list */
|
|
int cycle; /* offset of timeslot (bits) */
|
|
int length; /* length of timeslot (bits) */
|
|
int desc; /* index of active descriptor */
|
|
volatile uint32_t *prec; /* pointer to received fixed data */
|
|
};
|
|
|
|
struct dbri_desc {
|
|
int busy;
|
|
caddr_t buf; /* cpu view of buffer */
|
|
caddr_t buf_dvma; /* device view */
|
|
bus_addr_t dmabase;
|
|
bus_dma_segment_t dmaseg;
|
|
bus_dmamap_t dmamap;
|
|
size_t len;
|
|
void (*callback)(void *);
|
|
void *callback_args;
|
|
};
|
|
|
|
struct dbri_dma {
|
|
volatile uint32_t command[DBRI_NUM_COMMANDS];
|
|
volatile int32_t intr[DBRI_INT_BLOCKS];
|
|
struct dbri_mem desc[DBRI_NUM_DESCRIPTORS];
|
|
bus_dmamap_t dmamap;
|
|
};
|
|
|
|
struct dbri_softc {
|
|
struct device sc_dev; /* base device */
|
|
|
|
struct sbusdev sc_sd; /* sbus device */
|
|
bus_space_handle_t sc_ioh;
|
|
bus_space_tag_t sc_iot;
|
|
bus_dma_tag_t sc_dmat;
|
|
bus_dmamap_t sc_dmamap;
|
|
bus_dma_segment_t sc_dmaseg;
|
|
|
|
int sc_have_powerctl;
|
|
int sc_powerstate;
|
|
int sc_burst; /* DVMA burst size in effect */
|
|
|
|
bus_addr_t sc_dmabase; /* VA of buffer we provide */
|
|
caddr_t sc_membase;
|
|
int sc_bufsiz; /* size of the buffer */
|
|
int sc_locked;
|
|
int sc_irqp;
|
|
|
|
int sc_waitseen;
|
|
|
|
int sc_open;
|
|
|
|
int sc_liu_state;
|
|
void (*sc_liu)(void *);
|
|
void *sc_liu_args;
|
|
|
|
struct dbri_pipe sc_pipe[DBRI_PIPE_MAX];
|
|
struct dbri_desc sc_desc[DBRI_NUM_DESCRIPTORS];
|
|
|
|
struct cs4215_state sc_mm;
|
|
int sc_latt, sc_ratt;
|
|
int sc_ctl_mode;
|
|
|
|
uint32_t sc_version;
|
|
int sc_chi_pipe_in;
|
|
int sc_chi_pipe_out;
|
|
int sc_chi_bpf;
|
|
|
|
int sc_desc_used;
|
|
|
|
struct audio_params sc_params;
|
|
|
|
struct dbri_dma *sc_dma;
|
|
};
|
|
|
|
#define dbri_dma_off(member, elem) \
|
|
((uint32_t)(unsigned long) \
|
|
(&(((struct dbri_dma *)0)->member[elem])))
|
|
|
|
#if 1
|
|
#define DBRI_CMD(cmd, intr, value) ((cmd << 28) | (intr << 27) | value)
|
|
#else
|
|
#define DBRI_CMD(cmd, intr, value) ((cmd << 28) | (1 << 27) | value)
|
|
#endif
|
|
#define DBRI_INTR_GETCHAN(v) (((v) >> 24) & 0x3f)
|
|
#define DBRI_INTR_GETCODE(v) (((v) >> 20) & 0xf)
|
|
#define DBRI_INTR_GETCMD(v) (((v) >> 16) & 0xf)
|
|
#define DBRI_INTR_GETVAL(v) ((v) & 0xffff)
|
|
#define DBRI_INTR_GETRVAL(v) ((v) & 0xfffff)
|
|
|
|
#define DBRI_SDP_MODE(v) ((v) & (7 << 13))
|
|
#define DBRI_PIPE(v) ((v) << 0)
|
|
|
|
#endif /* DBRI_VAR_H */
|