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/* $NetBSD: dtvvar.h,v 1.6 2011/08/09 01:42:24 jmcneill Exp $ */
/*-
* Copyright (c) 2011 Jared D. McNeill <jmcneill@invisible.ca>
* 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. 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 Jared D. McNeill.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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 _DEV_DTV_DTVVAR_H
#define _DEV_DTV_DTVVAR_H
#include <dev/dtv/dtvif.h>
#include <dev/dtv/dtv_scatter.h>
#define DTV_DEFAULT_BLOCKSIZE (32 * PAGE_SIZE)
#define DTV_DEFAULT_BUFSIZE (32 * DTV_DEFAULT_BLOCKSIZE)
#define TS_PKTLEN 188
#define TS_HAS_SYNC(_tspkt) ((_tspkt)[0] == 0x47)
#define TS_HAS_PUSI(_tspkt) ((_tspkt)[1] & 0x40)
#define TS_HAS_AF(_tspkt) ((_tspkt)[3] & 0x20)
#define TS_HAS_PAYLOAD(_tspkt) ((_tspkt)[3] & 0x10)
#define TS_PID(_tspkt) ((((_tspkt)[1] & 0x1f) << 8) | (_tspkt)[2])
#define TS_SECTION_MAXLEN 4096
struct dtv_buffer {
uint32_t db_offset;
uint32_t db_bytesused;
size_t db_length;
SIMPLEQ_ENTRY(dtv_buffer) db_entries;
};
SIMPLEQ_HEAD(dtv_sample_queue, dtv_buffer);
struct dtv_stream {
unsigned int ds_nbufs;
struct dtv_buffer **ds_buf;
struct dtv_scatter_buf ds_data;
struct dtv_sample_queue ds_ingress, ds_egress;
kmutex_t ds_ingress_lock, ds_egress_lock;
kcondvar_t ds_sample_cv;
struct selinfo ds_sel;
uint32_t ds_bytesread;
};
typedef enum {
DTV_DEMUX_MODE_NONE,
DTV_DEMUX_MODE_SECTION,
DTV_DEMUX_MODE_PES,
} dtv_demux_mode_t;
struct dtv_ts_section {
uint8_t sec_buf[TS_SECTION_MAXLEN];
uint16_t sec_bytesused;
uint16_t sec_length;
};
struct dtv_demux {
struct dtv_softc *dd_sc;
struct selinfo dd_sel;
kmutex_t dd_lock;
kcondvar_t dd_section_cv;
bool dd_running;
dtv_demux_mode_t dd_mode;
struct {
struct dmx_sct_filter_params params;
struct dtv_ts_section section[16];
unsigned int rp, wp;
unsigned int nsections;
bool overflow;
} dd_secfilt;
TAILQ_ENTRY(dtv_demux) dd_entries;
};
struct dtv_ts {
uint8_t ts_pidfilter[0x2000];
kmutex_t ts_lock;
};
struct dtv_softc {
device_t sc_dev;
const struct dtv_hw_if *sc_hw;
void *sc_priv;
bool sc_dying;
unsigned int sc_open;
kmutex_t sc_lock;
size_t sc_bufsize;
bool sc_bufsize_chg;
struct dtv_stream sc_stream;
struct dtv_ts sc_ts;
TAILQ_HEAD(, dtv_demux) sc_demux_list;
kmutex_t sc_demux_lock;
int sc_demux_runcnt;
};
#define dtv_device_get_devinfo(sc, info) \
((sc)->sc_hw->get_devinfo((sc)->sc_priv, (info)))
#define dtv_device_open(sc, flags) \
((sc)->sc_hw->open((sc)->sc_priv, (flags)))
#define dtv_device_close(sc) \
((sc)->sc_hw->close((sc)->sc_priv))
#define dtv_device_set_tuner(sc, params) \
((sc)->sc_hw->set_tuner((sc)->sc_priv, (params)))
#define dtv_device_get_status(sc) \
((sc)->sc_hw->get_status((sc)->sc_priv))
#define dtv_device_get_signal_strength(sc) \
((sc)->sc_hw->get_signal_strength((sc)->sc_priv))
#define dtv_device_get_snr(sc) \
((sc)->sc_hw->get_snr((sc)->sc_priv))
#define dtv_device_start_transfer(sc) \
((sc)->sc_hw->start_transfer((sc)->sc_priv, dtv_buffer_submit, (sc)))
#define dtv_device_stop_transfer(sc) \
((sc)->sc_hw->stop_transfer((sc)->sc_priv))
int dtv_frontend_ioctl(struct dtv_softc *, u_long, void *, int);
int dtv_demux_open(struct dtv_softc *, int, int, lwp_t *);
void dtv_demux_write(struct dtv_softc *, const uint8_t *, size_t);
int dtv_buffer_realloc(struct dtv_softc *, size_t);
int dtv_buffer_setup(struct dtv_softc *);
int dtv_buffer_destroy(struct dtv_softc *);
int dtv_buffer_read(struct dtv_softc *, struct uio *, int);
int dtv_buffer_poll(struct dtv_softc *, int, lwp_t *);
void dtv_buffer_submit(void *, const struct dtv_payload *);
void dtv_common_close(struct dtv_softc *);
#endif /* !_DEV_DTV_DTVVAR_H */
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