2 * Copyright (c) 2002-2008 Sam Leffler, Errno Consulting
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6 * modification, are permitted provided that the following conditions
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29 * $FreeBSD: head/sys/dev/ath/ah_osdep.c 196970 2009-09-08 13:19:05Z phk $
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 <dev/netif/ath/hal/ath_hal/ah.h>
47 * WiSoC boards overload the bus tag with information about the
48 * board layout. We must extract the bus space tag from that
49 * indirect structure. For everyone else the tag is passed in
51 * XXX cache indirect ref privately
53 #ifdef AH_SUPPORT_AR5312
55 ((bus_space_tag_t) ((struct ar531x_config *)((ah)->ah_st))->tag)
57 #define BUSTAG(ah) ((ah)->ah_st)
60 extern void ath_hal_printf(struct ath_hal *, const char*, ...)
62 extern void ath_hal_vprintf(struct ath_hal *, const char*, __va_list)
64 extern const char* ath_hal_ether_sprintf(const u_int8_t *mac);
65 extern void *ath_hal_malloc(size_t);
66 extern void ath_hal_free(void *);
68 extern void ath_hal_assert_failed(const char* filename,
69 int lineno, const char* msg);
72 extern void HALDEBUG(struct ath_hal *ah, u_int mask, const char* fmt, ...);
75 /* NB: put this here instead of the driver to avoid circular references */
76 SYSCTL_NODE(_hw, OID_AUTO, ath, CTLFLAG_RD, 0, "Atheros driver parameters");
77 SYSCTL_NODE(_hw_ath, OID_AUTO, hal, CTLFLAG_RD, 0, "Atheros HAL parameters");
80 static int ath_hal_debug = 0xffffffff;
81 SYSCTL_INT(_hw_ath_hal, OID_AUTO, debug, CTLFLAG_RW, &ath_hal_debug,
82 0, "Atheros HAL debugging printfs");
83 TUNABLE_INT("hw.ath.hal.debug", &ath_hal_debug);
86 /* NB: these are deprecated; they exist for now for compatibility */
87 int ath_hal_dma_beacon_response_time = 2; /* in TU's */
88 SYSCTL_INT(_hw_ath_hal, OID_AUTO, dma_brt, CTLFLAG_RW,
89 &ath_hal_dma_beacon_response_time, 0,
90 "Atheros HAL DMA beacon response time");
91 int ath_hal_sw_beacon_response_time = 10; /* in TU's */
92 SYSCTL_INT(_hw_ath_hal, OID_AUTO, sw_brt, CTLFLAG_RW,
93 &ath_hal_sw_beacon_response_time, 0,
94 "Atheros HAL software beacon response time");
95 int ath_hal_additional_swba_backoff = 0; /* in TU's */
96 SYSCTL_INT(_hw_ath_hal, OID_AUTO, swba_backoff, CTLFLAG_RW,
97 &ath_hal_additional_swba_backoff, 0,
98 "Atheros HAL additional SWBA backoff time");
100 MALLOC_DEFINE(M_ATH_HAL, "ath_hal", "ath hal data");
103 ath_hal_malloc(size_t size)
105 return kmalloc(size, M_ATH_HAL, M_NOWAIT | M_ZERO);
109 ath_hal_free(void* p)
115 ath_hal_vprintf(struct ath_hal *ah, const char* fmt, __va_list ap)
121 ath_hal_printf(struct ath_hal *ah, const char* fmt, ...)
125 ath_hal_vprintf(ah, fmt, ap);
130 ath_hal_ether_sprintf(const u_int8_t *mac)
132 static char etherbuf[18];
134 ksnprintf(etherbuf, sizeof(etherbuf), "%6D", mac, ":");
140 HALDEBUG(struct ath_hal *ah, u_int mask, const char* fmt, ...)
142 if (ath_hal_debug & mask) {
145 ath_hal_vprintf(ah, fmt, ap);
149 #endif /* AH_DEBUG */
153 * ALQ register tracing support.
155 * Setting hw.ath.hal.alq=1 enables tracing of all register reads and
156 * writes to the file /tmp/ath_hal.log. The file format is a simple
157 * fixed-size array of records. When done logging set hw.ath.hal.alq=0
158 * and then decode the file with the arcode program (that is part of the
159 * HAL). If you start+stop tracing the data will be appended to an
162 * NB: doesn't handle multiple devices properly; only one DEVICE record
163 * is emitted and the different devices are not identified.
166 #include <sys/pcpu.h>
167 #include <dev/netif/ath/hal/ath_hal/ah_decode.h>
169 static struct alq *ath_hal_alq;
170 static int ath_hal_alq_emitdev; /* need to emit DEVICE record */
171 static u_int ath_hal_alq_lost; /* count of lost records */
172 static const char *ath_hal_logfile = "/tmp/ath_hal.log";
173 static u_int ath_hal_alq_qsize = 64*1024;
176 ath_hal_setlogging(int enable)
181 error = alq_open(&ath_hal_alq, ath_hal_logfile,
182 curthread->td_ucred, ALQ_DEFAULT_CMODE,
183 sizeof (struct athregrec), ath_hal_alq_qsize);
184 ath_hal_alq_lost = 0;
185 ath_hal_alq_emitdev = 1;
186 printf("ath_hal: logging to %s enabled\n",
190 alq_close(ath_hal_alq);
192 printf("ath_hal: logging disabled\n");
199 sysctl_hw_ath_hal_log(SYSCTL_HANDLER_ARGS)
203 enable = (ath_hal_alq != NULL);
204 error = sysctl_handle_int(oidp, &enable, 0, req);
205 if (error || !req->newptr)
208 return (ath_hal_setlogging(enable));
210 SYSCTL_PROC(_hw_ath_hal, OID_AUTO, alq, CTLTYPE_INT|CTLFLAG_RW,
211 0, 0, sysctl_hw_ath_hal_log, "I", "Enable HAL register logging");
212 SYSCTL_INT(_hw_ath_hal, OID_AUTO, alq_size, CTLFLAG_RW,
213 &ath_hal_alq_qsize, 0, "In-memory log size (#records)");
214 SYSCTL_INT(_hw_ath_hal, OID_AUTO, alq_lost, CTLFLAG_RW,
215 &ath_hal_alq_lost, 0, "Register operations not logged");
218 ath_hal_alq_get(struct ath_hal *ah)
222 if (ath_hal_alq_emitdev) {
223 ale = alq_get(ath_hal_alq, ALQ_NOWAIT);
225 struct athregrec *r =
226 (struct athregrec *) ale->ae_data;
229 r->val = ah->ah_devid;
230 alq_post(ath_hal_alq, ale);
231 ath_hal_alq_emitdev = 0;
235 ale = alq_get(ath_hal_alq, ALQ_NOWAIT);
242 ath_hal_reg_write(struct ath_hal *ah, u_int32_t reg, u_int32_t val)
244 bus_space_tag_t tag = BUSTAG(ah);
245 bus_space_handle_t h = ah->ah_sh;
248 struct ale *ale = ath_hal_alq_get(ah);
250 struct athregrec *r = (struct athregrec *) ale->ae_data;
254 alq_post(ath_hal_alq, ale);
257 #if _BYTE_ORDER == _BIG_ENDIAN
258 if (OS_REG_UNSWAPPED(reg))
259 bus_space_write_4(tag, h, reg, val);
262 bus_space_write_stream_4(tag, h, reg, val);
266 ath_hal_reg_read(struct ath_hal *ah, u_int32_t reg)
268 bus_space_tag_t tag = BUSTAG(ah);
269 bus_space_handle_t h = ah->ah_sh;
272 #if _BYTE_ORDER == _BIG_ENDIAN
273 if (OS_REG_UNSWAPPED(reg))
274 val = bus_space_read_4(tag, h, reg);
277 val = bus_space_read_stream_4(tag, h, reg);
279 struct ale *ale = ath_hal_alq_get(ah);
281 struct athregrec *r = (struct athregrec *) ale->ae_data;
285 alq_post(ath_hal_alq, ale);
292 OS_MARK(struct ath_hal *ah, u_int id, u_int32_t v)
295 struct ale *ale = ath_hal_alq_get(ah);
297 struct athregrec *r = (struct athregrec *) ale->ae_data;
301 alq_post(ath_hal_alq, ale);
305 #elif defined(AH_DEBUG) || defined(AH_REGOPS_FUNC)
307 * Memory-mapped device register read/write. These are here
308 * as routines when debugging support is enabled and/or when
309 * explicitly configured to use function calls. The latter is
310 * for architectures that might need to do something before
311 * referencing memory (e.g. remap an i/o window).
313 * NB: see the comments in ah_osdep.h about byte-swapping register
314 * reads and writes to understand what's going on below.
318 ath_hal_reg_write(struct ath_hal *ah, u_int32_t reg, u_int32_t val)
320 bus_space_tag_t tag = BUSTAG(ah);
321 bus_space_handle_t h = ah->ah_sh;
323 #if _BYTE_ORDER == _BIG_ENDIAN
324 if (OS_REG_UNSWAPPED(reg))
325 bus_space_write_4(tag, h, reg, val);
328 bus_space_write_stream_4(tag, h, reg, val);
332 ath_hal_reg_read(struct ath_hal *ah, u_int32_t reg)
334 bus_space_tag_t tag = BUSTAG(ah);
335 bus_space_handle_t h = ah->ah_sh;
338 #if _BYTE_ORDER == _BIG_ENDIAN
339 if (OS_REG_UNSWAPPED(reg))
340 val = bus_space_read_4(tag, h, reg);
343 val = bus_space_read_stream_4(tag, h, reg);
346 #endif /* AH_DEBUG || AH_REGOPS_FUNC */
350 ath_hal_assert_failed(const char* filename, int lineno, const char *msg)
352 printf("Atheros HAL assertion failure: %s: line %u: %s\n",
353 filename, lineno, msg);
354 panic("ath_hal_assert");
356 #endif /* AH_ASSERT */
362 ath_hal_modevent(module_t mod, int type, void *unused)
374 static moduledata_t ath_hal_mod = {
380 DECLARE_MODULE(ath_hal, ath_hal_mod, SI_SUB_DRIVERS, SI_ORDER_ANY);
381 MODULE_VERSION(ath_hal, 1);