2 * Copyright (c) 2002-2008 Sam Leffler, Errno Consulting
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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9 * notice, this list of conditions and the following disclaimer,
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33 #include <sys/param.h>
34 #include <sys/systm.h>
35 #include <sys/kernel.h>
36 #include <sys/module.h>
37 #include <sys/sysctl.h>
39 #include <sys/malloc.h>
42 #include <machine/stdarg.h>
44 #include <net/ethernet.h> /* XXX for ether_sprintf */
46 #include <dev/ath/ath_hal/ah.h>
49 * WiSoC boards overload the bus tag with information about the
50 * board layout. We must extract the bus space tag from that
51 * indirect structure. For everyone else the tag is passed in
53 * XXX cache indirect ref privately
55 #ifdef AH_SUPPORT_AR5312
57 ((bus_space_tag_t) ((struct ar531x_config *)((ah)->ah_st))->tag)
59 #define BUSTAG(ah) ((ah)->ah_st)
62 extern void ath_hal_printf(struct ath_hal *, const char*, ...)
64 extern void ath_hal_vprintf(struct ath_hal *, const char*, __va_list)
66 extern const char* ath_hal_ether_sprintf(const u_int8_t *mac);
67 extern void *ath_hal_malloc(size_t);
68 extern void ath_hal_free(void *);
70 extern void ath_hal_assert_failed(const char* filename,
71 int lineno, const char* msg);
74 extern void DO_HALDEBUG(struct ath_hal *ah, u_int mask, const char* fmt, ...);
77 /* NB: put this here instead of the driver to avoid circular references */
78 SYSCTL_NODE(_hw, OID_AUTO, ath, CTLFLAG_RD, 0, "Atheros driver parameters");
79 static SYSCTL_NODE(_hw_ath, OID_AUTO, hal, CTLFLAG_RD, 0,
80 "Atheros HAL parameters");
83 int ath_hal_debug = 0;
84 SYSCTL_INT(_hw_ath_hal, OID_AUTO, debug, CTLFLAG_RW, &ath_hal_debug,
85 0, "Atheros HAL debugging printfs");
86 TUNABLE_INT("hw.ath.hal.debug", &ath_hal_debug);
89 static MALLOC_DEFINE(M_ATH_HAL, "ath_hal", "ath hal data");
92 ath_hal_malloc(size_t size)
94 return malloc(size, M_ATH_HAL, M_NOWAIT | M_ZERO);
104 ath_hal_vprintf(struct ath_hal *ah, const char* fmt, va_list ap)
110 ath_hal_printf(struct ath_hal *ah, const char* fmt, ...)
114 ath_hal_vprintf(ah, fmt, ap);
119 ath_hal_ether_sprintf(const u_int8_t *mac)
121 return ether_sprintf(mac);
126 /* This must match the definition in ath_hal/ah_debug.h */
127 #define HAL_DEBUG_UNMASKABLE 0xf0000000
129 DO_HALDEBUG(struct ath_hal *ah, u_int mask, const char* fmt, ...)
131 if ((mask == HAL_DEBUG_UNMASKABLE) ||
132 (ah->ah_config.ah_debug & mask) ||
133 (ath_hal_debug & mask)) {
136 ath_hal_vprintf(ah, fmt, ap);
140 #undef HAL_DEBUG_UNMASKABLE
141 #endif /* AH_DEBUG */
145 * ALQ register tracing support.
147 * Setting hw.ath.hal.alq=1 enables tracing of all register reads and
148 * writes to the file /tmp/ath_hal.log. The file format is a simple
149 * fixed-size array of records. When done logging set hw.ath.hal.alq=0
150 * and then decode the file with the arcode program (that is part of the
151 * HAL). If you start+stop tracing the data will be appended to an
154 * NB: doesn't handle multiple devices properly; only one DEVICE record
155 * is emitted and the different devices are not identified.
158 #include <sys/pcpu.h>
159 #include <dev/ath/ath_hal/ah_decode.h>
161 static struct alq *ath_hal_alq;
162 static int ath_hal_alq_emitdev; /* need to emit DEVICE record */
163 static u_int ath_hal_alq_lost; /* count of lost records */
164 static char ath_hal_logfile[MAXPATHLEN] = "/tmp/ath_hal.log";
166 SYSCTL_STRING(_hw_ath_hal, OID_AUTO, alq_logfile, CTLFLAG_RW,
167 &ath_hal_logfile, sizeof(kernelname), "Name of ALQ logfile");
169 static u_int ath_hal_alq_qsize = 64*1024;
172 ath_hal_setlogging(int enable)
177 error = alq_open(&ath_hal_alq, ath_hal_logfile,
178 curthread->td_ucred, ALQ_DEFAULT_CMODE,
179 sizeof (struct athregrec), ath_hal_alq_qsize);
180 ath_hal_alq_lost = 0;
181 ath_hal_alq_emitdev = 1;
182 printf("ath_hal: logging to %s enabled\n",
186 alq_close(ath_hal_alq);
188 printf("ath_hal: logging disabled\n");
195 sysctl_hw_ath_hal_log(SYSCTL_HANDLER_ARGS)
199 enable = (ath_hal_alq != NULL);
200 error = sysctl_handle_int(oidp, &enable, 0, req);
201 if (error || !req->newptr)
204 return (ath_hal_setlogging(enable));
206 SYSCTL_PROC(_hw_ath_hal, OID_AUTO, alq, CTLTYPE_INT|CTLFLAG_RW,
207 0, 0, sysctl_hw_ath_hal_log, "I", "Enable HAL register logging");
208 SYSCTL_INT(_hw_ath_hal, OID_AUTO, alq_size, CTLFLAG_RW,
209 &ath_hal_alq_qsize, 0, "In-memory log size (#records)");
210 SYSCTL_INT(_hw_ath_hal, OID_AUTO, alq_lost, CTLFLAG_RW,
211 &ath_hal_alq_lost, 0, "Register operations not logged");
214 ath_hal_alq_get(struct ath_hal *ah)
218 if (ath_hal_alq_emitdev) {
219 ale = alq_get(ath_hal_alq, ALQ_NOWAIT);
221 struct athregrec *r =
222 (struct athregrec *) ale->ae_data;
225 r->val = ah->ah_devid;
226 alq_post(ath_hal_alq, ale);
227 ath_hal_alq_emitdev = 0;
231 ale = alq_get(ath_hal_alq, ALQ_NOWAIT);
238 ath_hal_reg_write(struct ath_hal *ah, u_int32_t reg, u_int32_t val)
240 bus_space_tag_t tag = BUSTAG(ah);
241 bus_space_handle_t h = ah->ah_sh;
244 struct ale *ale = ath_hal_alq_get(ah);
246 struct athregrec *r = (struct athregrec *) ale->ae_data;
250 alq_post(ath_hal_alq, ale);
253 #if _BYTE_ORDER == _BIG_ENDIAN
254 if (OS_REG_UNSWAPPED(reg))
255 bus_space_write_4(tag, h, reg, val);
258 bus_space_write_stream_4(tag, h, reg, val);
262 ath_hal_reg_read(struct ath_hal *ah, u_int32_t reg)
264 bus_space_tag_t tag = BUSTAG(ah);
265 bus_space_handle_t h = ah->ah_sh;
268 #if _BYTE_ORDER == _BIG_ENDIAN
269 if (OS_REG_UNSWAPPED(reg))
270 val = bus_space_read_4(tag, h, reg);
273 val = bus_space_read_stream_4(tag, h, reg);
275 struct ale *ale = ath_hal_alq_get(ah);
277 struct athregrec *r = (struct athregrec *) ale->ae_data;
281 alq_post(ath_hal_alq, ale);
288 OS_MARK(struct ath_hal *ah, u_int id, u_int32_t v)
291 struct ale *ale = ath_hal_alq_get(ah);
293 struct athregrec *r = (struct athregrec *) ale->ae_data;
297 alq_post(ath_hal_alq, ale);
301 #elif defined(AH_DEBUG) || defined(AH_REGOPS_FUNC)
303 * Memory-mapped device register read/write. These are here
304 * as routines when debugging support is enabled and/or when
305 * explicitly configured to use function calls. The latter is
306 * for architectures that might need to do something before
307 * referencing memory (e.g. remap an i/o window).
309 * NB: see the comments in ah_osdep.h about byte-swapping register
310 * reads and writes to understand what's going on below.
314 ath_hal_reg_write(struct ath_hal *ah, u_int32_t reg, u_int32_t val)
316 bus_space_tag_t tag = BUSTAG(ah);
317 bus_space_handle_t h = ah->ah_sh;
319 #if _BYTE_ORDER == _BIG_ENDIAN
320 if (OS_REG_UNSWAPPED(reg))
321 bus_space_write_4(tag, h, reg, val);
324 bus_space_write_stream_4(tag, h, reg, val);
328 ath_hal_reg_read(struct ath_hal *ah, u_int32_t reg)
330 bus_space_tag_t tag = BUSTAG(ah);
331 bus_space_handle_t h = ah->ah_sh;
334 #if _BYTE_ORDER == _BIG_ENDIAN
335 if (OS_REG_UNSWAPPED(reg))
336 val = bus_space_read_4(tag, h, reg);
339 val = bus_space_read_stream_4(tag, h, reg);
342 #endif /* AH_DEBUG || AH_REGOPS_FUNC */
346 ath_hal_assert_failed(const char* filename, int lineno, const char *msg)
348 printf("Atheros HAL assertion failure: %s: line %u: %s\n",
349 filename, lineno, msg);
350 panic("ath_hal_assert");
352 #endif /* AH_ASSERT */