/*-
* Copyright (c) 2002 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by ITOH Yasufumi.
*
* 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.
*
* 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.
*/
/*-
* Copyright (c) 2001 Marcus Comstedt
* 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 Marcus Comstedt.
* 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.
*/
#include <sys/queue.h>
#define MAPLE_PORTS 4
#define MAPLE_SUBUNITS 6
#define MAPLE_NFUNC 32
struct maple_func {
int f_funcno;
struct maple_unit *f_unit;
device_t f_dev;
/* callback */
void (*f_callback)(void *, struct maple_response *,
int /*len*/, int /*flags*/);
void *f_arg;
uint32_t f_work; /* for periodic GETCOND and ping */
/* command request */
int f_command;
int f_datalen;
const void *f_dataaddr;
enum maple_command_stat {
MAPLE_CMDSTAT_NONE, /* not in queue */
MAPLE_CMDSTAT_ASYNC, /* process immediately */
MAPLE_CMDSTAT_PERIODIC_DEFERED, /* periodic but process imdtly*/
MAPLE_CMDSTAT_ASYNC_PERIODICQ, /* async but on periodic queue*/
MAPLE_CMDSTAT_PERIODIC /* process on periodic timing */
} f_cmdstat;
TAILQ_ENTRY(maple_func) f_cmdq;
};
/* work-around problem with 3rd party memory cards */
#define MAPLE_MEMCARD_PING_HACK
struct maple_unit {
int port, subunit;
struct maple_func u_func[MAPLE_NFUNC];
uint32_t getcond_func_set;
int u_ping_func; /* function used for ping */
uint32_t u_noping; /* stop ping (bitmap of function) */
#ifdef MAPLE_MEMCARD_PING_HACK
enum maple_ping_stat {
MAPLE_PING_NORMAL, /* ping with GETCOND */
MAPLE_PING_MEMCARD, /* memory card, possibly 3rd party */
MAPLE_PING_MINFO /* poorly implemented 3rd party card */
} u_ping_stat;
#endif
struct maple_devinfo devinfo;
/* DMA status / function */
enum maple_dma_stat {
MAPLE_DMA_IDLE, /* not in queue */
MAPLE_DMA_RETRY, /* retrying last command (sc_retryq) */
MAPLE_DMA_PERIODIC, /* periodic GETCOND */
MAPLE_DMA_ACMD, /* asynchronous command */
MAPLE_DMA_PCMD, /* command on periodic timing */
MAPLE_DMA_PROBE, /* checking for insertion */
MAPLE_DMA_PING /* checking for removal */
} u_dma_stat;
int u_dma_func;
SIMPLEQ_ENTRY(maple_unit) u_dmaq;
/* start of each receive buffer */
uint32_t *u_rxbuf;
uint32_t u_rxbuf_phys;
/* for restarting command */
int u_command;
int u_datalen;
const void *u_dataaddr;
enum maple_dma_stat u_saved_dma_stat;
int u_retrycnt;
#define MAPLE_RETRY_MAX 100 /* ~2s */
/*
* The 2s retry is rather too long, but required to avoid
* unwanted detach/attach.
* If a Visual Memory (without cells) is inserted to a controller,
* the controller (including the base device and the other unit
* in the slot) stops responding for near 1 second. If two VM are
* inserted in succession, the period becomes near 2s.
*/
/* queue for probe/ping */
enum maple_queue_stat {
MAPLE_QUEUE_NONE, /* not in queue */
MAPLE_QUEUE_PROBE, /* checking for insertion */
MAPLE_QUEUE_PING /* checking for removal */
} u_queuestat;
TAILQ_ENTRY(maple_unit) u_q;
int u_proberetry; /* retry count (subunit != 0) */
#define MAPLE_PROBERETRY_MAX 5
};
struct maple_softc {
device_t sc_dev;
callout_t maple_callout_ch;
lwp_t *event_thread;
int8_t sc_port_unit_map[MAPLE_PORTS];
int sc_port_units[MAPLE_PORTS];
int sc_port_units_open[MAPLE_PORTS];
uint32_t *sc_txbuf; /* start of allocated transmit buffer */
uint32_t *sc_txpos; /* current write position in tx buffer */
uint32_t *sc_txlink; /* start of last written frame */
