1 files changed, 444 insertions, 0 deletions

diff --git a/sys/dev/ath/ah_osdep.c b/sys/dev/ath/ah_osdep.c
new file mode 100644
index 000000000000..e580e2f29d9e
--- /dev/null
+++ b/sys/dev/ath/ah_osdep.c
@@ -0,0 +1,444 @@
+/*-
+ * Copyright (c) 2002-2006 Sam Leffler, Errno Consulting
+ * 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,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
+ *    redistribution must be conditioned upon including a substantially
+ *    similar Disclaimer requirement for further binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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 DAMAGES.
+ *
+ * $FreeBSD$
+ */
+#include "opt_ah.h"
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/module.h>
+#include <sys/sysctl.h>
+#include <sys/bus.h>
+#include <sys/malloc.h>
+#include <sys/proc.h>
+
+#include <machine/stdarg.h>
+
+#include <net/ethernet.h>		/* XXX for ether_sprintf */
+
+#include <contrib/dev/ath/ah.h>
+
+/*
+ * WiSoC boards overload the bus tag with information about the
+ * board layout.  We must extract the bus space tag from that
+ * indirect structure.  For everyone else the tag is passed in
+ * directly.
+ * XXX cache indirect ref privately
+ */
+#ifdef AH_SUPPORT_AR5312
+#define	BUSTAG(ah) \
+	((bus_space_tag_t) ((struct ar531x_config *)((ah)->ah_st))->tag)
+#else
+#define	BUSTAG(ah)	((bus_space_tag_t) (ah)->ah_st)
+#endif
+
+extern	void ath_hal_printf(struct ath_hal *, const char*, ...)
+		__printflike(2,3);
+extern	void ath_hal_vprintf(struct ath_hal *, const char*, __va_list)
+		__printflike(2, 0);
+extern	const char* ath_hal_ether_sprintf(const u_int8_t *mac);
+extern	void *ath_hal_malloc(size_t);
+extern	void ath_hal_free(void *);
+#ifdef AH_ASSERT
+extern	void ath_hal_assert_failed(const char* filename,
+		int lineno, const char* msg);
+#endif
+#ifdef AH_DEBUG
+extern	void HALDEBUG(struct ath_hal *ah, const char* fmt, ...);
+extern	void HALDEBUGn(struct ath_hal *ah, u_int level, const char* fmt, ...);
+#endif /* AH_DEBUG */
+
+/* NB: put this here instead of the driver to avoid circular references */
+SYSCTL_NODE(_hw, OID_AUTO, ath, CTLFLAG_RD, 0, "Atheros driver parameters");
+SYSCTL_NODE(_hw_ath, OID_AUTO, hal, CTLFLAG_RD, 0, "Atheros HAL parameters");
+
+#ifdef AH_DEBUG
+static	int ath_hal_debug = 0;
+SYSCTL_INT(_hw_ath_hal, OID_AUTO, debug, CTLFLAG_RW, &ath_hal_debug,
+	    0, "Atheros HAL debugging printfs");
+TUNABLE_INT("hw.ath.hal.debug", &ath_hal_debug);
+#endif /* AH_DEBUG */
+
+SYSCTL_STRING(_hw_ath_hal, OID_AUTO, version, CTLFLAG_RD, ath_hal_version, 0,
+	"Atheros HAL version");
+
+/* NB: these are deprecated; they exist for now for compatibility */
+int	ath_hal_dma_beacon_response_time = 2;	/* in TU's */
+SYSCTL_INT(_hw_ath_hal, OID_AUTO, dma_brt, CTLFLAG_RW,
+	   &ath_hal_dma_beacon_response_time, 0,
+	   "Atheros HAL DMA beacon response time");
+int	ath_hal_sw_beacon_response_time = 10;	/* in TU's */
+SYSCTL_INT(_hw_ath_hal, OID_AUTO, sw_brt, CTLFLAG_RW,
+	   &ath_hal_sw_beacon_response_time, 0,
+	   "Atheros HAL software beacon response time");
+int	ath_hal_additional_swba_backoff = 0;	/* in TU's */
+SYSCTL_INT(_hw_ath_hal, OID_AUTO, swba_backoff, CTLFLAG_RW,
+	   &ath_hal_additional_swba_backoff, 0,
+	   "Atheros HAL additional SWBA backoff time");
+
+MALLOC_DEFINE(M_ATH_HAL, "ath_hal", "ath hal data");
+
+void*
+ath_hal_malloc(size_t size)
+{
+	return malloc(size, M_ATH_HAL, M_NOWAIT | M_ZERO);
+}
+
+void
+ath_hal_free(void* p)
+{
+	return free(p, M_ATH_HAL);
+}
+
+void
+ath_hal_vprintf(struct ath_hal *ah, const char* fmt, va_list ap)
+{
+	vprintf(fmt, ap);
+}
+
+void
+ath_hal_printf(struct ath_hal *ah, const char* fmt, ...)
+{
+	va_list ap;
+	va_start(ap, fmt);
+	ath_hal_vprintf(ah, fmt, ap);
+	va_end(ap);
+}
+
+const char*
+ath_hal_ether_sprintf(const u_int8_t *mac)
+{
+	return ether_sprintf(mac);
+}
+
+#ifdef AH_DEBUG
+void
+HALDEBUG(struct ath_hal *ah, const char* fmt, ...)
+{
+	if (ath_hal_debug) {
+		__va_list ap;
+		va_start(ap, fmt);
+		ath_hal_vprintf(ah, fmt, ap);
+		va_end(ap);
+	}
+}
+
+void
+HALDEBUGn(struct ath_hal *ah, u_int level, const char* fmt, ...)
+{
+	if (ath_hal_debug >= level) {
+		__va_list ap;
+		va_start(ap, fmt);
+		ath_hal_vprintf(ah, fmt, ap);
+		va_end(ap);
+	}
+}
+#endif /* AH_DEBUG */
+
+#ifdef AH_DEBUG_ALQ
+/*
+ * ALQ register tracing support.
+ *
+ * Setting hw.ath.hal.alq=1 enables tracing of all register reads and
+ * writes to the file /tmp/ath_hal.log.  The file format is a simple
+ * fixed-size array of records.  When done logging set hw.ath.hal.alq=0
+ * and then decode the file with the arcode program (that is part of the
+ * HAL).  If you start+stop tracing the data will be appended to an
+ * existing file.
+ *
+ * NB: doesn't handle multiple devices properly; only one DEVICE record
+ *     is emitted and the different devices are not identified.
+ */
+#include <sys/alq.h>
+#include <sys/pcpu.h>
+#include <contrib/dev/ath/ah_decode.h>
+
+static	struct alq *ath_hal_alq;
+static	int ath_hal_alq_emitdev;	/* need to emit DEVICE record */
+static	u_int ath_hal_alq_lost;		/* count of lost records */
+static	const char *ath_hal_logfile = "/tmp/ath_hal.log";
+static	u_int ath_hal_alq_qsize = 64*1024;
+
+static int
+ath_hal_setlogging(int enable)
+{
+	int error;
+
+	if (enable) {
+		error = suser(curthread);
+		if (error == 0) {
+			error = alq_open(&ath_hal_alq, ath_hal_logfile,
+				curthread->td_ucred, ALQ_DEFAULT_CMODE,
+				sizeof (struct athregrec), ath_hal_alq_qsize);
+			ath_hal_alq_lost = 0;
+			ath_hal_alq_emitdev = 1;
+			printf("ath_hal: logging to %s enabled\n",
+				ath_hal_logfile);
+		}
+	} else {
+		if (ath_hal_alq)
+			alq_close(ath_hal_alq);
+		ath_hal_alq = NULL;
+		printf("ath_hal: logging disabled\n");
+		error = 0;
+	}
+	return (error);
+}
+
+static int
+sysctl_hw_ath_hal_log(SYSCTL_HANDLER_ARGS)
+{
+	int error, enable;
+
+	enable = (ath_hal_alq != NULL);
+        error = sysctl_handle_int(oidp, &enable, 0, req);
+        if (error || !req->newptr)
+                return (error);
+	else
+		return (ath_hal_setlogging(enable));
+}
+SYSCTL_PROC(_hw_ath_hal, OID_AUTO, alq, CTLTYPE_INT|CTLFLAG_RW,
+	0, 0, sysctl_hw_ath_hal_log, "I", "Enable HAL register logging");
+SYSCTL_INT(_hw_ath_hal, OID_AUTO, alq_size, CTLFLAG_RW,
+	&ath_hal_alq_qsize, 0, "In-memory log size (#records)");
+SYSCTL_INT(_hw_ath_hal, OID_AUTO, alq_lost, CTLFLAG_RW,
+	&ath_hal_alq_lost, 0, "Register operations not logged");
+
+static struct ale *
+ath_hal_alq_get(struct ath_hal *ah)
+{
+	struct ale *ale;
+
+	if (ath_hal_alq_emitdev) {
+		ale = alq_get(ath_hal_alq, ALQ_NOWAIT);
+		if (ale) {
+			struct athregrec *r =
+				(struct athregrec *) ale->ae_data;
+			r->op = OP_DEVICE;
+			r->reg = 0;
+			r->val = ah->ah_devid;
+			alq_post(ath_hal_alq, ale);
+			ath_hal_alq_emitdev = 0;
+		} else
+			ath_hal_alq_lost++;
+	}
+	ale = alq_get(ath_hal_alq, ALQ_NOWAIT);
+	if (!ale)
+		ath_hal_alq_lost++;
+	return ale;
+}
+
+void
+ath_hal_reg_write(struct ath_hal *ah, u_int32_t reg, u_int32_t val)
+{
+	bus_space_tag_t tag = BUSTAG(ah);
+	bus_space_handle_t h = (bus_space_handle_t) ah->ah_sh;
+
+	if (ath_hal_alq) {
+		struct ale *ale = ath_hal_alq_get(ah);
+		if (ale) {
+			struct athregrec *r = (struct athregrec *) ale->ae_data;
+			r->op = OP_WRITE;
+			r->reg = reg;
+			r->val = val;
+			alq_post(ath_hal_alq, ale);
+		}
+	}
+#if _BYTE_ORDER == _BIG_ENDIAN
+	if (reg >= 0x4000 && reg < 0x5000)
+		bus_space_write_4(tag, h, reg, val);
+	else
+#endif
+		bus_space_write_stream_4(tag, h, reg, val);
+}
+
+u_int32_t
+ath_hal_reg_read(struct ath_hal *ah, u_int32_t reg)
+{
+	bus_space_tag_t tag = BUSTAG(ah);
+	bus_space_handle_t h = (bus_space_handle_t) ah->ah_sh;
+	u_int32_t val;
+
+#if _BYTE_ORDER == _BIG_ENDIAN
+	if (reg >= 0x4000 && reg < 0x5000)
+		val = bus_space_read_4(tag, h, reg);
+	else
+#endif
+		val = bus_space_read_stream_4(tag, h, reg);
+	if (ath_hal_alq) {
+		struct ale *ale = ath_hal_alq_get(ah);
+		if (ale) {
+			struct athregrec *r = (struct athregrec *) ale->ae_data;
+			r->op = OP_READ;
+			r->reg = reg;
+			r->val = val;
+			alq_post(ath_hal_alq, ale);
+		}
+	}
+	return val;
+}
+
+void
+OS_MARK(struct ath_hal *ah, u_int id, u_int32_t v)
+{
+	if (ath_hal_alq) {
+		struct ale *ale = ath_hal_alq_get(ah);
+		if (ale) {
+			struct athregrec *r = (struct athregrec *) ale->ae_data;
+			r->op = OP_MARK;
+			r->reg = id;
+			r->val = v;
+			alq_post(ath_hal_alq, ale);
+		}
+	}
+}
+#elif defined(AH_DEBUG) || defined(AH_REGOPS_FUNC)
+/*
+ * Memory-mapped device register read/write.  These are here
+ * as routines when debugging support is enabled and/or when
+ * explicitly configured to use function calls.  The latter is
+ * for architectures that might need to do something before
+ * referencing memory (e.g. remap an i/o window).
+ *
+ * NB: see the comments in ah_osdep.h about byte-swapping register
+ *     reads and writes to understand what's going on below.
+ */
+
+void
+ath_hal_reg_write(struct ath_hal *ah, u_int32_t reg, u_int32_t val)
+{
+	bus_space_tag_t tag = BUSTAG(ah);
+	bus_space_handle_t h = (bus_space_handle_t) ah->ah_sh;
+
+#if _BYTE_ORDER == _BIG_ENDIAN
+	if (reg >= 0x4000 && reg < 0x5000)
+		bus_space_write_4(tag, h, reg, val);
+	else
+#endif
+		bus_space_write_stream_4(tag, h, reg, val);
+}
+
+u_int32_t
+ath_hal_reg_read(struct ath_hal *ah, u_int32_t reg)
+{
+	bus_space_tag_t tag = BUSTAG(ah);
+	bus_space_handle_t h = (bus_space_handle_t) ah->ah_sh;
+	u_int32_t val;
+
+#if _BYTE_ORDER == _BIG_ENDIAN
+	if (reg >= 0x4000 && reg < 0x5000)
+		val = bus_space_read_4(tag, h, reg);
+	else
+#endif
+		val = bus_space_read_stream_4(tag, h, reg);
+	return val;
+}
+#endif /* AH_DEBUG || AH_REGOPS_FUNC */
+
+#ifdef AH_ASSERT
+void
+ath_hal_assert_failed(const char* filename, int lineno, const char *msg)
+{
+	printf("Atheros HAL assertion failure: %s: line %u: %s\n",
+		filename, lineno, msg);
+	panic("ath_hal_assert");
+}
+#endif /* AH_ASSERT */
+
+/*
+ * Delay n microseconds.
+ */
+void
+ath_hal_delay(int n)
+{
+	DELAY(n);
+}
+
+u_int32_t
+ath_hal_getuptime(struct ath_hal *ah)
+{
+	struct bintime bt;
+	getbinuptime(&bt);
+	return (bt.sec * 1000) +
+		(((uint64_t)1000 * (uint32_t)(bt.frac >> 32)) >> 32);
+}
+
+void
+ath_hal_memzero(void *dst, size_t n)
+{
+	bzero(dst, n);
+}
+
+void *
+ath_hal_memcpy(void *dst, const void *src, size_t n)
+{
+	return memcpy(dst, src, n);
+}
+
+/*
+ * Module glue.
+ */
+
+static int
+ath_hal_modevent(module_t mod, int type, void *unused)
+{
+	const char *sep;
+	int i;
+
+	switch (type) {
+	case MOD_LOAD:
+		printf("ath_hal: %s (", ath_hal_version);
+		sep = "";
+		for (i = 0; ath_hal_buildopts[i] != NULL; i++) {
+			printf("%s%s", sep, ath_hal_buildopts[i]);
+			sep = ", ";
+		}
+		printf(")\n");
+		return 0;
+	case MOD_UNLOAD:
+		return 0;
+	}
+	return EINVAL;
+}
+
+static moduledata_t ath_hal_mod = {
+	"ath_hal",
+	ath_hal_modevent,
+	0
+};
+DECLARE_MODULE(ath_hal, ath_hal_mod, SI_SUB_DRIVERS, SI_ORDER_ANY);
+MODULE_VERSION(ath_hal, 1);