2 * Copyright (c) 2010 Broadcom Corporation
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
11 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
13 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 #include <linux/types.h>
19 #include <linux/netdevice.h>
23 #include BCMEMBEDIMAGE
24 #endif /* BCMEMBEDIMAGE */
34 #include <hndrte_armtrap.h>
35 #include <hndrte_cons.h>
36 #endif /* DHD_DEBUG */
42 #include <sbsdpcmdev.h>
45 #include <proto/802.11.h>
47 #include <dngl_stats.h>
50 #include <dhd_proto.h>
54 #include <siutils_priv.h>
56 #ifndef DHDSDIO_MEM_DUMP_FNAME
57 #define DHDSDIO_MEM_DUMP_FNAME "mem_dump"
60 #define TXQLEN 2048 /* bulk tx queue length */
61 #define TXHI (TXQLEN - 256) /* turn on flow control above TXHI */
62 #define TXLOW (TXHI - 256) /* turn off flow control below TXLOW */
65 #define TXRETRIES 2 /* # of retries for tx frames */
67 #if defined(CONFIG_MACH_SANDGATE2G)
68 #define DHD_RXBOUND 250 /* Default for max rx frames in
71 #define DHD_RXBOUND 50 /* Default for max rx frames in
73 #endif /* defined(CONFIG_MACH_SANDGATE2G) */
75 #define DHD_TXBOUND 20 /* Default for max tx frames in
78 #define DHD_TXMINMAX 1 /* Max tx frames if rx still pending */
80 #define MEMBLOCK 2048 /* Block size used for downloading
82 #define MAX_DATA_BUF (32 * 1024) /* Must be large enough to hold
83 biggest possible glom */
85 /* Packet alignment for most efficient SDIO (can change based on platform) */
87 #define DHD_SDALIGN 32
89 #if !ISPOWEROF2(DHD_SDALIGN)
90 #error DHD_SDALIGN is not a power of 2!
94 #define DHD_FIRSTREAD 32
96 #if !ISPOWEROF2(DHD_FIRSTREAD)
97 #error DHD_FIRSTREAD is not a power of 2!
100 /* Total length of frame header for dongle protocol */
101 #define SDPCM_HDRLEN (SDPCM_FRAMETAG_LEN + SDPCM_SWHEADER_LEN)
103 #define SDPCM_RESERVE (SDPCM_HDRLEN + SDPCM_TEST_HDRLEN + DHD_SDALIGN)
105 #define SDPCM_RESERVE (SDPCM_HDRLEN + DHD_SDALIGN)
108 /* Space for header read, limit for data packets */
110 #define MAX_HDR_READ 32
112 #if !ISPOWEROF2(MAX_HDR_READ)
113 #error MAX_HDR_READ is not a power of 2!
116 #define MAX_RX_DATASZ 2048
118 /* Maximum milliseconds to wait for F2 to come up */
119 #define DHD_WAIT_F2RDY 3000
121 /* Bump up limit on waiting for HT to account for first startup;
122 * if the image is doing a CRC calculation before programming the PMU
123 * for HT availability, it could take a couple hundred ms more, so
124 * max out at a 1 second (1000000us).
126 #if (PMU_MAX_TRANSITION_DLY <= 1000000)
127 #undef PMU_MAX_TRANSITION_DLY
128 #define PMU_MAX_TRANSITION_DLY 1000000
131 /* Value for ChipClockCSR during initial setup */
132 #define DHD_INIT_CLKCTL1 (SBSDIO_FORCE_HW_CLKREQ_OFF | \
133 SBSDIO_ALP_AVAIL_REQ)
134 #define DHD_INIT_CLKCTL2 (SBSDIO_FORCE_HW_CLKREQ_OFF | SBSDIO_FORCE_ALP)
136 /* Flags for SDH calls */
137 #define F2SYNC (SDIO_REQ_4BYTE | SDIO_REQ_FIXED)
139 /* Packet free applicable unconditionally for sdio and sdspi. Conditional if
140 * bufpool was present for gspi bus.
142 #define PKTFREE2() if ((bus->bus != SPI_BUS) || bus->usebufpool) \
143 pkt_buf_free_skb(pkt);
146 * Conversion of 802.1D priority to precedence level
148 #define PRIO2PREC(prio) \
149 (((prio) == PRIO_8021D_NONE || (prio) == PRIO_8021D_BE) ? \
152 DHD_SPINWAIT_SLEEP_INIT(sdioh_spinwait_sleep
);
153 extern int dhdcdc_set_ioctl(dhd_pub_t
*dhd
, int ifidx
, uint cmd
, void *buf
,
157 /* Device console log buffer state */
158 typedef struct dhd_console
{
159 uint count
; /* Poll interval msec counter */
160 uint log_addr
; /* Log struct address (fixed) */
161 hndrte_log_t log
; /* Log struct (host copy) */
162 uint bufsize
; /* Size of log buffer */
163 u8
*buf
; /* Log buffer (host copy) */
164 uint last
; /* Last buffer read index */
166 #endif /* DHD_DEBUG */
168 /* Private data for SDIO bus interaction */
169 typedef struct dhd_bus
{
172 bcmsdh_info_t
*sdh
; /* Handle for BCMSDH calls */
173 si_t
*sih
; /* Handle for SI calls */
174 char *vars
; /* Variables (from CIS and/or other) */
175 uint varsz
; /* Size of variables buffer */
176 u32 sbaddr
; /* Current SB window pointer (-1, invalid) */
178 sdpcmd_regs_t
*regs
; /* Registers for SDIO core */
179 uint sdpcmrev
; /* SDIO core revision */
180 uint armrev
; /* CPU core revision */
181 uint ramrev
; /* SOCRAM core revision */
182 u32 ramsize
; /* Size of RAM in SOCRAM (bytes) */
183 u32 orig_ramsize
; /* Size of RAM in SOCRAM (bytes) */
185 u32 bus
; /* gSPI or SDIO bus */
186 u32 hostintmask
; /* Copy of Host Interrupt Mask */
187 u32 intstatus
; /* Intstatus bits (events) pending */
188 bool dpc_sched
; /* Indicates DPC schedule (intrpt rcvd) */
189 bool fcstate
; /* State of dongle flow-control */
191 u16 cl_devid
; /* cached devid for dhdsdio_probe_attach() */
192 char *fw_path
; /* module_param: path to firmware image */
193 char *nv_path
; /* module_param: path to nvram vars file */
194 const char *nvram_params
; /* user specified nvram params. */
196 uint blocksize
; /* Block size of SDIO transfers */
197 uint roundup
; /* Max roundup limit */
199 struct pktq txq
; /* Queue length used for flow-control */
200 u8 flowcontrol
; /* per prio flow control bitmask */
201 u8 tx_seq
; /* Transmit sequence number (next) */
202 u8 tx_max
; /* Maximum transmit sequence allowed */
204 u8 hdrbuf
[MAX_HDR_READ
+ DHD_SDALIGN
];
205 u8
*rxhdr
; /* Header of current rx frame (in hdrbuf) */
206 u16 nextlen
; /* Next Read Len from last header */
207 u8 rx_seq
; /* Receive sequence number (expected) */
208 bool rxskip
; /* Skip receive (awaiting NAK ACK) */
210 struct sk_buff
*glomd
; /* Packet containing glomming descriptor */
211 struct sk_buff
*glom
; /* Packet chain for glommed superframe */
212 uint glomerr
; /* Glom packet read errors */
214 u8
*rxbuf
; /* Buffer for receiving control packets */
215 uint rxblen
; /* Allocated length of rxbuf */
216 u8
*rxctl
; /* Aligned pointer into rxbuf */
217 u8
*databuf
; /* Buffer for receiving big glom packet */
218 u8
*dataptr
; /* Aligned pointer into databuf */
219 uint rxlen
; /* Length of valid data in buffer */
221 u8 sdpcm_ver
; /* Bus protocol reported by dongle */
223 bool intr
; /* Use interrupts */
224 bool poll
; /* Use polling */
225 bool ipend
; /* Device interrupt is pending */
226 bool intdis
; /* Interrupts disabled by isr */
227 uint intrcount
; /* Count of device interrupt callbacks */
228 uint lastintrs
; /* Count as of last watchdog timer */
229 uint spurious
; /* Count of spurious interrupts */
230 uint pollrate
; /* Ticks between device polls */
231 uint polltick
; /* Tick counter */
232 uint pollcnt
; /* Count of active polls */
235 dhd_console_t console
; /* Console output polling support */
236 uint console_addr
; /* Console address from shared struct */
237 #endif /* DHD_DEBUG */
239 uint regfails
; /* Count of R_REG/W_REG failures */
241 uint clkstate
; /* State of sd and backplane clock(s) */
242 bool activity
; /* Activity flag for clock down */
243 s32 idletime
; /* Control for activity timeout */
244 s32 idlecount
; /* Activity timeout counter */
245 s32 idleclock
; /* How to set bus driver when idle */
246 s32 sd_divisor
; /* Speed control to bus driver */
247 s32 sd_mode
; /* Mode control to bus driver */
248 s32 sd_rxchain
; /* If bcmsdh api accepts PKT chains */
249 bool use_rxchain
; /* If dhd should use PKT chains */
250 bool sleeping
; /* Is SDIO bus sleeping? */
251 bool rxflow_mode
; /* Rx flow control mode */
252 bool rxflow
; /* Is rx flow control on */
253 uint prev_rxlim_hit
; /* Is prev rx limit exceeded
254 (per dpc schedule) */
255 bool alp_only
; /* Don't use HT clock (ALP only) */
256 /* Field to decide if rx of control frames happen in rxbuf or lb-pool */
260 /* external loopback */
264 /* pktgen configuration */
265 uint pktgen_freq
; /* Ticks between bursts */
266 uint pktgen_count
; /* Packets to send each burst */
267 uint pktgen_print
; /* Bursts between count displays */
268 uint pktgen_total
; /* Stop after this many */
269 uint pktgen_minlen
; /* Minimum packet data len */
270 uint pktgen_maxlen
; /* Maximum packet data len */
271 uint pktgen_mode
; /* Configured mode: tx, rx, or echo */
272 uint pktgen_stop
; /* Number of tx failures causing stop */
274 /* active pktgen fields */
275 uint pktgen_tick
; /* Tick counter for bursts */
276 uint pktgen_ptick
; /* Burst counter for printing */
277 uint pktgen_sent
; /* Number of test packets generated */
278 uint pktgen_rcvd
; /* Number of test packets received */
279 uint pktgen_fail
; /* Number of failed send attempts */
280 u16 pktgen_len
; /* Length of next packet to send */
283 /* Some additional counters */
284 uint tx_sderrs
; /* Count of tx attempts with sd errors */
285 uint fcqueued
; /* Tx packets that got queued */
286 uint rxrtx
; /* Count of rtx requests (NAK to dongle) */
287 uint rx_toolong
; /* Receive frames too long to receive */
288 uint rxc_errors
; /* SDIO errors when reading control frames */
289 uint rx_hdrfail
; /* SDIO errors on header reads */
290 uint rx_badhdr
; /* Bad received headers (roosync?) */
291 uint rx_badseq
; /* Mismatched rx sequence number */
292 uint fc_rcvd
; /* Number of flow-control events received */
293 uint fc_xoff
; /* Number which turned on flow-control */
294 uint fc_xon
; /* Number which turned off flow-control */
295 uint rxglomfail
; /* Failed deglom attempts */
296 uint rxglomframes
; /* Number of glom frames (superframes) */
297 uint rxglompkts
; /* Number of packets from glom frames */
298 uint f2rxhdrs
; /* Number of header reads */
299 uint f2rxdata
; /* Number of frame data reads */
300 uint f2txdata
; /* Number of f2 frame writes */
301 uint f1regdata
; /* Number of f1 register accesses */
305 bool ctrl_frame_stat
;
311 #define CLK_PENDING 2 /* Not used yet */
314 #define DHD_NOPMU(dhd) (false)
317 static int qcount
[NUMPRIO
];
318 static int tx_packets
[NUMPRIO
];
319 #endif /* DHD_DEBUG */
321 /* Deferred transmit */
322 const uint dhd_deferred_tx
= 1;
324 extern uint dhd_watchdog_ms
;
325 extern void dhd_os_wd_timer(void *bus
, uint wdtick
);
332 /* override the RAM size if possible */
333 #define DONGLE_MIN_MEMSIZE (128 * 1024)
334 int dhd_dongle_memsize
;
336 static bool dhd_alignctl
;
340 static bool retrydata
;
341 #define RETRYCHAN(chan) (((chan) == SDPCM_EVENT_CHANNEL) || retrydata)
343 static const uint watermark
= 8;
344 static const uint firstread
= DHD_FIRSTREAD
;
346 #define HDATLEN (firstread - (SDPCM_HDRLEN))
348 /* Retry count for register access failures */
349 static const uint retry_limit
= 2;
351 /* Force even SD lengths (some host controllers mess up on odd bytes) */
352 static bool forcealign
;
356 #if defined(OOB_INTR_ONLY) && defined(HW_OOB)
357 extern void bcmsdh_enable_hw_oob_intr(void *sdh
, bool enable
);
360 #if defined(OOB_INTR_ONLY) && defined(SDIO_ISR_THREAD)
361 #error OOB_INTR_ONLY is NOT working with SDIO_ISR_THREAD
362 #endif /* defined(OOB_INTR_ONLY) && defined(SDIO_ISR_THREAD) */
363 #define PKTALIGN(_p, _len, _align) \
366 datalign = (unsigned long)((_p)->data); \
367 datalign = roundup(datalign, (_align)) - datalign; \
368 ASSERT(datalign < (_align)); \
369 ASSERT((_p)->len >= ((_len) + datalign)); \
371 skb_pull((_p), datalign); \
372 __skb_trim((_p), (_len)); \
375 /* Limit on rounding up frames */
376 static const uint max_roundup
= 512;
378 /* Try doing readahead */
379 static bool dhd_readahead
;
381 /* To check if there's window offered */
382 #define DATAOK(bus) \
383 (((u8)(bus->tx_max - bus->tx_seq) != 0) && \
384 (((u8)(bus->tx_max - bus->tx_seq) & 0x80) == 0))
386 /* Macros to get register read/write status */
387 /* NOTE: these assume a local dhdsdio_bus_t *bus! */
388 #define R_SDREG(regvar, regaddr, retryvar) \
392 regvar = R_REG(regaddr); \
393 } while (bcmsdh_regfail(bus->sdh) && (++retryvar <= retry_limit)); \
395 bus->regfails += (retryvar-1); \
396 if (retryvar > retry_limit) { \
397 DHD_ERROR(("%s: FAILED" #regvar "READ, LINE %d\n", \
398 __func__, __LINE__)); \
404 #define W_SDREG(regval, regaddr, retryvar) \
408 W_REG(regaddr, regval); \
409 } while (bcmsdh_regfail(bus->sdh) && (++retryvar <= retry_limit)); \
411 bus->regfails += (retryvar-1); \
412 if (retryvar > retry_limit) \
413 DHD_ERROR(("%s: FAILED REGISTER WRITE, LINE %d\n", \
414 __func__, __LINE__)); \
418 #define DHD_BUS SDIO_BUS
420 #define PKT_AVAILABLE() (intstatus & I_HMB_FRAME_IND)
422 #define HOSTINTMASK (I_HMB_SW_MASK | I_CHIPACTIVE)
424 #define GSPI_PR55150_BAILOUT
427 static void dhdsdio_testrcv(dhd_bus_t
*bus
, void *pkt
, uint seq
);
428 static void dhdsdio_sdtest_set(dhd_bus_t
*bus
, bool start
);
432 static int dhdsdio_checkdied(dhd_bus_t
*bus
, u8
*data
, uint size
);
433 static int dhdsdio_mem_dump(dhd_bus_t
*bus
);
434 #endif /* DHD_DEBUG */
435 static int dhdsdio_download_state(dhd_bus_t
*bus
, bool enter
);
437 static void dhdsdio_release(dhd_bus_t
*bus
);
438 static void dhdsdio_release_malloc(dhd_bus_t
*bus
);
439 static void dhdsdio_disconnect(void *ptr
);
440 static bool dhdsdio_chipmatch(u16 chipid
);
441 static bool dhdsdio_probe_attach(dhd_bus_t
*bus
, void *sdh
,
442 void *regsva
, u16 devid
);
443 static bool dhdsdio_probe_malloc(dhd_bus_t
*bus
, void *sdh
);
444 static bool dhdsdio_probe_init(dhd_bus_t
*bus
, void *sdh
);
445 static void dhdsdio_release_dongle(dhd_bus_t
*bus
);
447 static uint
process_nvram_vars(char *varbuf
, uint len
);
449 static void dhd_dongle_setmemsize(struct dhd_bus
*bus
, int mem_size
);
450 static int dhd_bcmsdh_recv_buf(dhd_bus_t
*bus
, u32 addr
, uint fn
,
451 uint flags
, u8
*buf
, uint nbytes
,
452 struct sk_buff
*pkt
, bcmsdh_cmplt_fn_t complete
,
454 static int dhd_bcmsdh_send_buf(dhd_bus_t
*bus
, u32 addr
, uint fn
,
455 uint flags
, u8
*buf
, uint nbytes
,
456 struct sk_buff
*pkt
, bcmsdh_cmplt_fn_t complete
,
459 static bool dhdsdio_download_firmware(struct dhd_bus
*bus
, void *sdh
);
460 static int _dhdsdio_download_firmware(struct dhd_bus
*bus
);
462 static int dhdsdio_download_code_file(struct dhd_bus
*bus
, char *image_path
);
463 static int dhdsdio_download_nvram(struct dhd_bus
*bus
);
465 static int dhdsdio_download_code_array(struct dhd_bus
*bus
);
468 static void dhd_dongle_setmemsize(struct dhd_bus
*bus
, int mem_size
)
470 s32 min_size
= DONGLE_MIN_MEMSIZE
;
471 /* Restrict the memsize to user specified limit */
472 DHD_ERROR(("user: Restrict the dongle ram size to %d, min %d\n",
473 dhd_dongle_memsize
, min_size
));
474 if ((dhd_dongle_memsize
> min_size
) &&
475 (dhd_dongle_memsize
< (s32
) bus
->orig_ramsize
))
476 bus
->ramsize
= dhd_dongle_memsize
;
479 static int dhdsdio_set_siaddr_window(dhd_bus_t
*bus
, u32 address
)
482 bcmsdh_cfg_write(bus
->sdh
, SDIO_FUNC_1
, SBSDIO_FUNC1_SBADDRLOW
,
483 (address
>> 8) & SBSDIO_SBADDRLOW_MASK
, &err
);
485 bcmsdh_cfg_write(bus
->sdh
, SDIO_FUNC_1
, SBSDIO_FUNC1_SBADDRMID
,
486 (address
>> 16) & SBSDIO_SBADDRMID_MASK
, &err
);
488 bcmsdh_cfg_write(bus
->sdh
, SDIO_FUNC_1
, SBSDIO_FUNC1_SBADDRHIGH
,
489 (address
>> 24) & SBSDIO_SBADDRHIGH_MASK
,
494 /* Turn backplane clock on or off */
495 static int dhdsdio_htclk(dhd_bus_t
*bus
, bool on
, bool pendok
)
498 u8 clkctl
, clkreq
, devctl
;
501 DHD_TRACE(("%s: Enter\n", __func__
));
503 #if defined(OOB_INTR_ONLY)
510 /* Request HT Avail */
512 bus
->alp_only
? SBSDIO_ALP_AVAIL_REQ
: SBSDIO_HT_AVAIL_REQ
;
514 if ((bus
->sih
->chip
== BCM4329_CHIP_ID
)
515 && (bus
->sih
->chiprev
== 0))
516 clkreq
|= SBSDIO_FORCE_ALP
;
518 bcmsdh_cfg_write(sdh
, SDIO_FUNC_1
, SBSDIO_FUNC1_CHIPCLKCSR
,
521 DHD_ERROR(("%s: HT Avail request error: %d\n",
526 if (pendok
&& ((bus
->sih
->buscoretype
== PCMCIA_CORE_ID
)
527 && (bus
->sih
->buscorerev
== 9))) {
529 R_SDREG(dummy
, &bus
->regs
->clockctlstatus
, retries
);
532 /* Check current status */
534 bcmsdh_cfg_read(sdh
, SDIO_FUNC_1
, SBSDIO_FUNC1_CHIPCLKCSR
,
537 DHD_ERROR(("%s: HT Avail read error: %d\n",
542 /* Go to pending and await interrupt if appropriate */
543 if (!SBSDIO_CLKAV(clkctl
, bus
->alp_only
) && pendok
) {
544 /* Allow only clock-available interrupt */
546 bcmsdh_cfg_read(sdh
, SDIO_FUNC_1
, SBSDIO_DEVICE_CTL
,
549 DHD_ERROR(("%s: Devctl error setting CA: %d\n",
554 devctl
|= SBSDIO_DEVCTL_CA_INT_ONLY
;
555 bcmsdh_cfg_write(sdh
, SDIO_FUNC_1
, SBSDIO_DEVICE_CTL
,
557 DHD_INFO(("CLKCTL: set PENDING\n"));
558 bus
->clkstate
= CLK_PENDING
;
561 } else if (bus
->clkstate
== CLK_PENDING
) {
562 /* Cancel CA-only interrupt filter */
564 bcmsdh_cfg_read(sdh
, SDIO_FUNC_1
, SBSDIO_DEVICE_CTL
,
566 devctl
&= ~SBSDIO_DEVCTL_CA_INT_ONLY
;
567 bcmsdh_cfg_write(sdh
, SDIO_FUNC_1
, SBSDIO_DEVICE_CTL
,
571 /* Otherwise, wait here (polling) for HT Avail */
572 if (!SBSDIO_CLKAV(clkctl
, bus
->alp_only
)) {
573 SPINWAIT_SLEEP(sdioh_spinwait_sleep
,
575 bcmsdh_cfg_read(sdh
, SDIO_FUNC_1
,
576 SBSDIO_FUNC1_CHIPCLKCSR
,
578 !SBSDIO_CLKAV(clkctl
, bus
->alp_only
)),
579 PMU_MAX_TRANSITION_DLY
);
582 DHD_ERROR(("%s: HT Avail request error: %d\n",
586 if (!SBSDIO_CLKAV(clkctl
, bus
->alp_only
)) {
587 DHD_ERROR(("%s: HT Avail timeout (%d): clkctl 0x%02x\n",
588 __func__
, PMU_MAX_TRANSITION_DLY
, clkctl
));
592 /* Mark clock available */
593 bus
->clkstate
= CLK_AVAIL
;
594 DHD_INFO(("CLKCTL: turned ON\n"));
596 #if defined(DHD_DEBUG)
597 if (bus
->alp_only
== true) {
598 #if !defined(BCMLXSDMMC)
599 if (!SBSDIO_ALPONLY(clkctl
)) {
600 DHD_ERROR(("%s: HT Clock, when ALP Only\n",
603 #endif /* !defined(BCMLXSDMMC) */
605 if (SBSDIO_ALPONLY(clkctl
)) {
606 DHD_ERROR(("%s: HT Clock should be on.\n",
610 #endif /* defined (DHD_DEBUG) */
612 bus
->activity
= true;
616 if (bus
->clkstate
== CLK_PENDING
) {
617 /* Cancel CA-only interrupt filter */
619 bcmsdh_cfg_read(sdh
, SDIO_FUNC_1
, SBSDIO_DEVICE_CTL
,
621 devctl
&= ~SBSDIO_DEVCTL_CA_INT_ONLY
;
622 bcmsdh_cfg_write(sdh
, SDIO_FUNC_1
, SBSDIO_DEVICE_CTL
,
626 bus
->clkstate
= CLK_SDONLY
;
627 bcmsdh_cfg_write(sdh
, SDIO_FUNC_1
, SBSDIO_FUNC1_CHIPCLKCSR
,
629 DHD_INFO(("CLKCTL: turned OFF\n"));
631 DHD_ERROR(("%s: Failed access turning clock off: %d\n",
639 /* Change idle/active SD state */
640 static int dhdsdio_sdclk(dhd_bus_t
*bus
, bool on
)
645 DHD_TRACE(("%s: Enter\n", __func__
));
648 if (bus
->idleclock
== DHD_IDLE_STOP
) {
649 /* Turn on clock and restore mode */
651 err
= bcmsdh_iovar_op(bus
->sdh
, "sd_clock", NULL
, 0,
652 &iovalue
, sizeof(iovalue
), true);
654 DHD_ERROR(("%s: error enabling sd_clock: %d\n",
659 iovalue
= bus
->sd_mode
;
660 err
= bcmsdh_iovar_op(bus
->sdh
, "sd_mode", NULL
, 0,
661 &iovalue
, sizeof(iovalue
), true);
663 DHD_ERROR(("%s: error changing sd_mode: %d\n",
667 } else if (bus
->idleclock
!= DHD_IDLE_ACTIVE
) {
668 /* Restore clock speed */
669 iovalue
= bus
->sd_divisor
;
670 err
= bcmsdh_iovar_op(bus
->sdh
, "sd_divisor", NULL
, 0,
671 &iovalue
, sizeof(iovalue
), true);
673 DHD_ERROR(("%s: error restoring sd_divisor: %d\n",
678 bus
->clkstate
= CLK_SDONLY
;
680 /* Stop or slow the SD clock itself */
681 if ((bus
->sd_divisor
== -1) || (bus
->sd_mode
== -1)) {
682 DHD_TRACE(("%s: can't idle clock, divisor %d mode %d\n",
683 __func__
, bus
->sd_divisor
, bus
->sd_mode
));
686 if (bus
->idleclock
== DHD_IDLE_STOP
) {
688 /* Change to SD1 mode and turn off clock */
691 bcmsdh_iovar_op(bus
->sdh
, "sd_mode", NULL
,
693 sizeof(iovalue
), true);
695 DHD_ERROR(("%s: error changing sd_clock: %d\n",
702 err
= bcmsdh_iovar_op(bus
->sdh
, "sd_clock", NULL
, 0,
703 &iovalue
, sizeof(iovalue
), true);
705 DHD_ERROR(("%s: error disabling sd_clock: %d\n",
709 } else if (bus
->idleclock
!= DHD_IDLE_ACTIVE
) {
710 /* Set divisor to idle value */
711 iovalue
= bus
->idleclock
;
712 err
= bcmsdh_iovar_op(bus
->sdh
, "sd_divisor", NULL
, 0,
713 &iovalue
, sizeof(iovalue
), true);
715 DHD_ERROR(("%s: error changing sd_divisor: %d\n",
720 bus
->clkstate
= CLK_NONE
;
726 /* Transition SD and backplane clock readiness */
727 static int dhdsdio_clkctl(dhd_bus_t
*bus
, uint target
, bool pendok
)
730 uint oldstate
= bus
->clkstate
;
731 #endif /* DHD_DEBUG */
733 DHD_TRACE(("%s: Enter\n", __func__
));
735 /* Early exit if we're already there */
736 if (bus
->clkstate
== target
) {
737 if (target
== CLK_AVAIL
) {
738 dhd_os_wd_timer(bus
->dhd
, dhd_watchdog_ms
);
739 bus
->activity
= true;
746 /* Make sure SD clock is available */
747 if (bus
->clkstate
== CLK_NONE
)
748 dhdsdio_sdclk(bus
, true);
749 /* Now request HT Avail on the backplane */
750 dhdsdio_htclk(bus
, true, pendok
);
751 dhd_os_wd_timer(bus
->dhd
, dhd_watchdog_ms
);
752 bus
->activity
= true;
756 /* Remove HT request, or bring up SD clock */
757 if (bus
->clkstate
== CLK_NONE
)
758 dhdsdio_sdclk(bus
, true);
759 else if (bus
->clkstate
== CLK_AVAIL
)
760 dhdsdio_htclk(bus
, false, false);
762 DHD_ERROR(("dhdsdio_clkctl: request for %d -> %d\n",
763 bus
->clkstate
, target
));
764 dhd_os_wd_timer(bus
->dhd
, dhd_watchdog_ms
);
768 /* Make sure to remove HT request */
769 if (bus
->clkstate
== CLK_AVAIL
)
770 dhdsdio_htclk(bus
, false, false);
771 /* Now remove the SD clock */
772 dhdsdio_sdclk(bus
, false);
773 dhd_os_wd_timer(bus
->dhd
, 0);
777 DHD_INFO(("dhdsdio_clkctl: %d -> %d\n", oldstate
, bus
->clkstate
));
778 #endif /* DHD_DEBUG */
783 int dhdsdio_bussleep(dhd_bus_t
*bus
, bool sleep
)
785 bcmsdh_info_t
*sdh
= bus
->sdh
;
786 sdpcmd_regs_t
*regs
= bus
->regs
;
789 DHD_INFO(("dhdsdio_bussleep: request %s (currently %s)\n",
790 (sleep
? "SLEEP" : "WAKE"),
791 (bus
->sleeping
? "SLEEP" : "WAKE")));
793 /* Done if we're already in the requested state */
794 if (sleep
== bus
->sleeping
)
797 /* Going to sleep: set the alarm and turn off the lights... */
799 /* Don't sleep if something is pending */
800 if (bus
->dpc_sched
|| bus
->rxskip
|| pktq_len(&bus
->txq
))
803 /* Disable SDIO interrupts (no longer interested) */
804 bcmsdh_intr_disable(bus
->sdh
);
806 /* Make sure the controller has the bus up */
807 dhdsdio_clkctl(bus
, CLK_AVAIL
, false);
809 /* Tell device to start using OOB wakeup */
810 W_SDREG(SMB_USE_OOB
, ®s
->tosbmailbox
, retries
);
811 if (retries
> retry_limit
)
812 DHD_ERROR(("CANNOT SIGNAL CHIP, WILL NOT WAKE UP!!\n"));
814 /* Turn off our contribution to the HT clock request */
815 dhdsdio_clkctl(bus
, CLK_SDONLY
, false);
817 bcmsdh_cfg_write(sdh
, SDIO_FUNC_1
, SBSDIO_FUNC1_CHIPCLKCSR
,
818 SBSDIO_FORCE_HW_CLKREQ_OFF
, NULL
);
820 /* Isolate the bus */
821 if (bus
->sih
->chip
!= BCM4329_CHIP_ID
822 && bus
->sih
->chip
!= BCM4319_CHIP_ID
) {
823 bcmsdh_cfg_write(sdh
, SDIO_FUNC_1
, SBSDIO_DEVICE_CTL
,
824 SBSDIO_DEVCTL_PADS_ISO
, NULL
);
828 bus
->sleeping
= true;
831 /* Waking up: bus power up is ok, set local state */
833 bcmsdh_cfg_write(sdh
, SDIO_FUNC_1
, SBSDIO_FUNC1_CHIPCLKCSR
,
836 /* Force pad isolation off if possible
837 (in case power never toggled) */
838 if ((bus
->sih
->buscoretype
== PCMCIA_CORE_ID
)
839 && (bus
->sih
->buscorerev
>= 10))
840 bcmsdh_cfg_write(sdh
, SDIO_FUNC_1
, SBSDIO_DEVICE_CTL
, 0,
843 /* Make sure the controller has the bus up */
844 dhdsdio_clkctl(bus
, CLK_AVAIL
, false);
846 /* Send misc interrupt to indicate OOB not needed */
847 W_SDREG(0, ®s
->tosbmailboxdata
, retries
);
848 if (retries
<= retry_limit
)
849 W_SDREG(SMB_DEV_INT
, ®s
->tosbmailbox
, retries
);
851 if (retries
> retry_limit
)
852 DHD_ERROR(("CANNOT SIGNAL CHIP TO CLEAR OOB!!\n"));
854 /* Make sure we have SD bus access */
855 dhdsdio_clkctl(bus
, CLK_SDONLY
, false);
858 bus
->sleeping
= false;
860 /* Enable interrupts again */
861 if (bus
->intr
&& (bus
->dhd
->busstate
== DHD_BUS_DATA
)) {
863 bcmsdh_intr_enable(bus
->sdh
);
870 #if defined(OOB_INTR_ONLY)
871 void dhd_enable_oob_intr(struct dhd_bus
*bus
, bool enable
)
874 bcmsdh_enable_hw_oob_intr(bus
->sdh
, enable
);
876 sdpcmd_regs_t
*regs
= bus
->regs
;
879 dhdsdio_clkctl(bus
, CLK_AVAIL
, false);
880 if (enable
== true) {
882 /* Tell device to start using OOB wakeup */
883 W_SDREG(SMB_USE_OOB
, ®s
->tosbmailbox
, retries
);
884 if (retries
> retry_limit
)
885 DHD_ERROR(("CANNOT SIGNAL CHIP, WILL NOT WAKE UP!!\n"));
888 /* Send misc interrupt to indicate OOB not needed */
889 W_SDREG(0, ®s
->tosbmailboxdata
, retries
);
890 if (retries
<= retry_limit
)
891 W_SDREG(SMB_DEV_INT
, ®s
->tosbmailbox
, retries
);
894 /* Turn off our contribution to the HT clock request */
895 dhdsdio_clkctl(bus
, CLK_SDONLY
, false);
896 #endif /* !defined(HW_OOB) */
898 #endif /* defined(OOB_INTR_ONLY) */
900 #define BUS_WAKE(bus) \
902 if ((bus)->sleeping) \
903 dhdsdio_bussleep((bus), false); \
906 /* Writes a HW/SW header into the packet and sends it. */
907 /* Assumes: (a) header space already there, (b) caller holds lock */
908 static int dhdsdio_txpkt(dhd_bus_t
*bus
, struct sk_buff
*pkt
, uint chan
,
920 DHD_TRACE(("%s: Enter\n", __func__
));
924 if (bus
->dhd
->dongle_reset
) {
929 frame
= (u8
*) (pkt
->data
);
931 /* Add alignment padding, allocate new packet if needed */
932 pad
= ((unsigned long)frame
% DHD_SDALIGN
);
934 if (skb_headroom(pkt
) < pad
) {
935 DHD_INFO(("%s: insufficient headroom %d for %d pad\n",
936 __func__
, skb_headroom(pkt
), pad
));
937 bus
->dhd
->tx_realloc
++;
938 new = pkt_buf_get_skb(pkt
->len
+ DHD_SDALIGN
);
940 DHD_ERROR(("%s: couldn't allocate new %d-byte "
942 __func__
, pkt
->len
+ DHD_SDALIGN
));
947 PKTALIGN(new, pkt
->len
, DHD_SDALIGN
);
948 memcpy(new->data
, pkt
->data
, pkt
->len
);
950 pkt_buf_free_skb(pkt
);
951 /* free the pkt if canned one is not used */
954 frame
= (u8
*) (pkt
->data
);
955 ASSERT(((unsigned long)frame
% DHD_SDALIGN
) == 0);
959 frame
= (u8
*) (pkt
->data
);
961 ASSERT((pad
+ SDPCM_HDRLEN
) <= (int)(pkt
->len
));
962 memset(frame
, 0, pad
+ SDPCM_HDRLEN
);
965 ASSERT(pad
< DHD_SDALIGN
);
967 /* Hardware tag: 2 byte len followed by 2 byte ~len check (all LE) */
968 len
= (u16
) (pkt
->len
);
969 *(u16
*) frame
= cpu_to_le16(len
);
970 *(((u16
*) frame
) + 1) = cpu_to_le16(~len
);
972 /* Software tag: channel, sequence number, data offset */
974 ((chan
<< SDPCM_CHANNEL_SHIFT
) & SDPCM_CHANNEL_MASK
) | bus
->tx_seq
|
976 SDPCM_HDRLEN
) << SDPCM_DOFFSET_SHIFT
) & SDPCM_DOFFSET_MASK
);
978 put_unaligned_le32(swheader
, frame
+ SDPCM_FRAMETAG_LEN
);
979 put_unaligned_le32(0, frame
+ SDPCM_FRAMETAG_LEN
+ sizeof(swheader
));
982 tx_packets
[pkt
->priority
]++;
983 if (DHD_BYTES_ON() &&
984 (((DHD_CTL_ON() && (chan
== SDPCM_CONTROL_CHANNEL
)) ||
985 (DHD_DATA_ON() && (chan
!= SDPCM_CONTROL_CHANNEL
))))) {
986 prhex("Tx Frame", frame
, len
);
987 } else if (DHD_HDRS_ON()) {
988 prhex("TxHdr", frame
, min_t(u16
, len
, 16));
992 /* Raise len to next SDIO block to eliminate tail command */
993 if (bus
->roundup
&& bus
->blocksize
&& (len
> bus
->blocksize
)) {
994 u16 pad
= bus
->blocksize
- (len
% bus
->blocksize
);
995 if ((pad
<= bus
->roundup
) && (pad
< bus
->blocksize
))
997 if (pad
<= skb_tailroom(pkt
))
1000 } else if (len
% DHD_SDALIGN
) {
1001 len
+= DHD_SDALIGN
- (len
% DHD_SDALIGN
);
1004 /* Some controllers have trouble with odd bytes -- round to even */
1005 if (forcealign
&& (len
& (ALIGNMENT
- 1))) {
1007 if (skb_tailroom(pkt
))
1009 len
= roundup(len
, ALIGNMENT
);
1012 DHD_ERROR(("%s: sending unrounded %d-byte packet\n",
1019 dhd_bcmsdh_send_buf(bus
, bcmsdh_cur_sbwad(sdh
), SDIO_FUNC_2
,
1020 F2SYNC
, frame
, len
, pkt
, NULL
, NULL
);
1022 ASSERT(ret
!= BCME_PENDING
);
1025 /* On failure, abort the command
1026 and terminate the frame */
1027 DHD_INFO(("%s: sdio error %d, abort command and "
1028 "terminate frame.\n", __func__
, ret
));
1031 bcmsdh_abort(sdh
, SDIO_FUNC_2
);
1032 bcmsdh_cfg_write(sdh
, SDIO_FUNC_1
,
1033 SBSDIO_FUNC1_FRAMECTRL
, SFC_WF_TERM
,
1037 for (i
= 0; i
< 3; i
++) {
1039 hi
= bcmsdh_cfg_read(sdh
, SDIO_FUNC_1
,
1040 SBSDIO_FUNC1_WFRAMEBCHI
,
1042 lo
= bcmsdh_cfg_read(sdh
, SDIO_FUNC_1
,
1043 SBSDIO_FUNC1_WFRAMEBCLO
,
1045 bus
->f1regdata
+= 2;
1046 if ((hi
== 0) && (lo
== 0))
1052 bus
->tx_seq
= (bus
->tx_seq
+ 1) % SDPCM_SEQUENCE_WRAP
;
1054 } while ((ret
< 0) && retrydata
&& retries
++ < TXRETRIES
);
1057 /* restore pkt buffer pointer before calling tx complete routine */
1058 skb_pull(pkt
, SDPCM_HDRLEN
+ pad
);
1059 dhd_os_sdunlock(bus
->dhd
);
1060 dhd_txcomplete(bus
->dhd
, pkt
, ret
!= 0);
1061 dhd_os_sdlock(bus
->dhd
);
1064 pkt_buf_free_skb(pkt
);
1069 int dhd_bus_txdata(struct dhd_bus
*bus
, struct sk_buff
*pkt
)
1071 int ret
= BCME_ERROR
;
1074 DHD_TRACE(("%s: Enter\n", __func__
));
1079 /* Push the test header if doing loopback */
1080 if (bus
->ext_loop
) {
1082 skb_push(pkt
, SDPCM_TEST_HDRLEN
);
1084 *data
++ = SDPCM_TEST_ECHOREQ
;
1085 *data
++ = (u8
) bus
->loopid
++;
1086 *data
++ = (datalen
>> 0);
1087 *data
++ = (datalen
>> 8);
1088 datalen
+= SDPCM_TEST_HDRLEN
;
1092 /* Add space for the header */
1093 skb_push(pkt
, SDPCM_HDRLEN
);
1094 ASSERT(IS_ALIGNED((unsigned long)(pkt
->data
), 2));
1096 prec
= PRIO2PREC((pkt
->priority
& PRIOMASK
));
1098 /* Check for existing queue, current flow-control,
1099 pending event, or pending clock */
1100 if (dhd_deferred_tx
|| bus
->fcstate
|| pktq_len(&bus
->txq
)
1101 || bus
->dpc_sched
|| (!DATAOK(bus
))
1102 || (bus
->flowcontrol
& NBITVAL(prec
))
1103 || (bus
->clkstate
!= CLK_AVAIL
)) {
1104 DHD_TRACE(("%s: deferring pktq len %d\n", __func__
,
1105 pktq_len(&bus
->txq
)));
1108 /* Priority based enq */
1109 dhd_os_sdlock_txq(bus
->dhd
);
1110 if (dhd_prec_enq(bus
->dhd
, &bus
->txq
, pkt
, prec
) == false) {
1111 skb_pull(pkt
, SDPCM_HDRLEN
);
1112 dhd_txcomplete(bus
->dhd
, pkt
, false);
1113 pkt_buf_free_skb(pkt
);
1114 DHD_ERROR(("%s: out of bus->txq !!!\n", __func__
));
1115 ret
= BCME_NORESOURCE
;
1119 dhd_os_sdunlock_txq(bus
->dhd
);
1121 if (pktq_len(&bus
->txq
) >= TXHI
)
1122 dhd_txflowcontrol(bus
->dhd
, 0, ON
);
1125 if (pktq_plen(&bus
->txq
, prec
) > qcount
[prec
])
1126 qcount
[prec
] = pktq_plen(&bus
->txq
, prec
);
1128 /* Schedule DPC if needed to send queued packet(s) */
1129 if (dhd_deferred_tx
&& !bus
->dpc_sched
) {
1130 bus
->dpc_sched
= true;
1131 dhd_sched_dpc(bus
->dhd
);
1134 /* Lock: we're about to use shared data/code (and SDIO) */
1135 dhd_os_sdlock(bus
->dhd
);
1137 /* Otherwise, send it now */
1139 /* Make sure back plane ht clk is on, no pending allowed */
1140 dhdsdio_clkctl(bus
, CLK_AVAIL
, true);
1143 DHD_TRACE(("%s: calling txpkt\n", __func__
));
1144 ret
= dhdsdio_txpkt(bus
, pkt
, SDPCM_DATA_CHANNEL
, true);
1146 ret
= dhdsdio_txpkt(bus
, pkt
,
1147 (bus
->ext_loop
? SDPCM_TEST_CHANNEL
:
1148 SDPCM_DATA_CHANNEL
), true);
1151 bus
->dhd
->tx_errors
++;
1153 bus
->dhd
->dstats
.tx_bytes
+= datalen
;
1155 if ((bus
->idletime
== DHD_IDLE_IMMEDIATE
) && !bus
->dpc_sched
) {
1156 bus
->activity
= false;
1157 dhdsdio_clkctl(bus
, CLK_NONE
, true);
1160 dhd_os_sdunlock(bus
->dhd
);
1166 static uint
dhdsdio_sendfromq(dhd_bus_t
*bus
, uint maxframes
)
1168 struct sk_buff
*pkt
;
1171 int ret
= 0, prec_out
;
1176 dhd_pub_t
*dhd
= bus
->dhd
;
1177 sdpcmd_regs_t
*regs
= bus
->regs
;
1179 DHD_TRACE(("%s: Enter\n", __func__
));
1181 tx_prec_map
= ~bus
->flowcontrol
;
1183 /* Send frames until the limit or some other event */
1184 for (cnt
= 0; (cnt
< maxframes
) && DATAOK(bus
); cnt
++) {
1185 dhd_os_sdlock_txq(bus
->dhd
);
1186 pkt
= pktq_mdeq(&bus
->txq
, tx_prec_map
, &prec_out
);
1188 dhd_os_sdunlock_txq(bus
->dhd
);
1191 dhd_os_sdunlock_txq(bus
->dhd
);
1192 datalen
= pkt
->len
- SDPCM_HDRLEN
;
1195 ret
= dhdsdio_txpkt(bus
, pkt
, SDPCM_DATA_CHANNEL
, true);
1197 ret
= dhdsdio_txpkt(bus
, pkt
,
1198 (bus
->ext_loop
? SDPCM_TEST_CHANNEL
:
1199 SDPCM_DATA_CHANNEL
), true);
1202 bus
->dhd
->tx_errors
++;
1204 bus
->dhd
->dstats
.tx_bytes
+= datalen
;
1206 /* In poll mode, need to check for other events */
1207 if (!bus
->intr
&& cnt
) {
1208 /* Check device status, signal pending interrupt */
1209 R_SDREG(intstatus
, ®s
->intstatus
, retries
);
1211 if (bcmsdh_regfail(bus
->sdh
))
1213 if (intstatus
& bus
->hostintmask
)
1218 /* Deflow-control stack if needed */
1219 if (dhd
->up
&& (dhd
->busstate
== DHD_BUS_DATA
) &&
1220 dhd
->txoff
&& (pktq_len(&bus
->txq
) < TXLOW
))
1221 dhd_txflowcontrol(dhd
, 0, OFF
);
1226 int dhd_bus_txctl(struct dhd_bus
*bus
, unsigned char *msg
, uint msglen
)
1232 bcmsdh_info_t
*sdh
= bus
->sdh
;
1237 DHD_TRACE(("%s: Enter\n", __func__
));
1239 if (bus
->dhd
->dongle_reset
)
1242 /* Back the pointer to make a room for bus header */
1243 frame
= msg
- SDPCM_HDRLEN
;
1244 len
= (msglen
+= SDPCM_HDRLEN
);
1246 /* Add alignment padding (optional for ctl frames) */
1248 doff
= ((unsigned long)frame
% DHD_SDALIGN
);
1253 memset(frame
, 0, doff
+ SDPCM_HDRLEN
);
1255 ASSERT(doff
< DHD_SDALIGN
);
1257 doff
+= SDPCM_HDRLEN
;
1259 /* Round send length to next SDIO block */
1260 if (bus
->roundup
&& bus
->blocksize
&& (len
> bus
->blocksize
)) {
1261 u16 pad
= bus
->blocksize
- (len
% bus
->blocksize
);
1262 if ((pad
<= bus
->roundup
) && (pad
< bus
->blocksize
))
1264 } else if (len
% DHD_SDALIGN
) {
1265 len
+= DHD_SDALIGN
- (len
% DHD_SDALIGN
);
1268 /* Satisfy length-alignment requirements */
1269 if (forcealign
&& (len
& (ALIGNMENT
- 1)))
1270 len
= roundup(len
, ALIGNMENT
);
1272 ASSERT(IS_ALIGNED((unsigned long)frame
, 2));
1274 /* Need to lock here to protect txseq and SDIO tx calls */
1275 dhd_os_sdlock(bus
->dhd
);
1279 /* Make sure backplane clock is on */
1280 dhdsdio_clkctl(bus
, CLK_AVAIL
, false);
1282 /* Hardware tag: 2 byte len followed by 2 byte ~len check (all LE) */
1283 *(u16
*) frame
= cpu_to_le16((u16
) msglen
);
1284 *(((u16
*) frame
) + 1) = cpu_to_le16(~msglen
);
1286 /* Software tag: channel, sequence number, data offset */
1288 ((SDPCM_CONTROL_CHANNEL
<< SDPCM_CHANNEL_SHIFT
) &
1290 | bus
->tx_seq
| ((doff
<< SDPCM_DOFFSET_SHIFT
) &
1291 SDPCM_DOFFSET_MASK
);
1292 put_unaligned_le32(swheader
, frame
+ SDPCM_FRAMETAG_LEN
);
1293 put_unaligned_le32(0, frame
+ SDPCM_FRAMETAG_LEN
+ sizeof(swheader
));
1296 DHD_INFO(("%s: No bus credit bus->tx_max %d, bus->tx_seq %d\n",
1297 __func__
, bus
->tx_max
, bus
->tx_seq
));
1298 bus
->ctrl_frame_stat
= true;
1300 bus
->ctrl_frame_buf
= frame
;
1301 bus
->ctrl_frame_len
= len
;
1303 dhd_wait_for_event(bus
->dhd
, &bus
->ctrl_frame_stat
);
1305 if (bus
->ctrl_frame_stat
== false) {
1306 DHD_INFO(("%s: ctrl_frame_stat == false\n", __func__
));
1309 DHD_INFO(("%s: ctrl_frame_stat == true\n", __func__
));
1316 if (DHD_BYTES_ON() && DHD_CTL_ON())
1317 prhex("Tx Frame", frame
, len
);
1318 else if (DHD_HDRS_ON())
1319 prhex("TxHdr", frame
, min_t(u16
, len
, 16));
1323 bus
->ctrl_frame_stat
= false;
1325 dhd_bcmsdh_send_buf(bus
, bcmsdh_cur_sbwad(sdh
),
1326 SDIO_FUNC_2
, F2SYNC
, frame
, len
,
1329 ASSERT(ret
!= BCME_PENDING
);
1332 /* On failure, abort the command and
1333 terminate the frame */
1334 DHD_INFO(("%s: sdio error %d, abort command and terminate frame.\n",
1338 bcmsdh_abort(sdh
, SDIO_FUNC_2
);
1340 bcmsdh_cfg_write(sdh
, SDIO_FUNC_1
,
1341 SBSDIO_FUNC1_FRAMECTRL
,
1345 for (i
= 0; i
< 3; i
++) {
1347 hi
= bcmsdh_cfg_read(sdh
, SDIO_FUNC_1
,
1348 SBSDIO_FUNC1_WFRAMEBCHI
,
1350 lo
= bcmsdh_cfg_read(sdh
, SDIO_FUNC_1
,
1351 SBSDIO_FUNC1_WFRAMEBCLO
,
1353 bus
->f1regdata
+= 2;
1354 if ((hi
== 0) && (lo
== 0))
1361 (bus
->tx_seq
+ 1) % SDPCM_SEQUENCE_WRAP
;
1363 } while ((ret
< 0) && retries
++ < TXRETRIES
);
1366 if ((bus
->idletime
== DHD_IDLE_IMMEDIATE
) && !bus
->dpc_sched
) {
1367 bus
->activity
= false;
1368 dhdsdio_clkctl(bus
, CLK_NONE
, true);
1371 dhd_os_sdunlock(bus
->dhd
);
1374 bus
->dhd
->tx_ctlerrs
++;
1376 bus
->dhd
->tx_ctlpkts
++;
1378 return ret
? -EIO
: 0;
1381 int dhd_bus_rxctl(struct dhd_bus
*bus
, unsigned char *msg
, uint msglen
)
1387 DHD_TRACE(("%s: Enter\n", __func__
));
1389 if (bus
->dhd
->dongle_reset
)
1392 /* Wait until control frame is available */
1393 timeleft
= dhd_os_ioctl_resp_wait(bus
->dhd
, &bus
->rxlen
, &pending
);
1395 dhd_os_sdlock(bus
->dhd
);
1397 memcpy(msg
, bus
->rxctl
, min(msglen
, rxlen
));
1399 dhd_os_sdunlock(bus
->dhd
);
1402 DHD_CTL(("%s: resumed on rxctl frame, got %d expected %d\n",
1403 __func__
, rxlen
, msglen
));
1404 } else if (timeleft
== 0) {
1405 DHD_ERROR(("%s: resumed on timeout\n", __func__
));
1407 dhd_os_sdlock(bus
->dhd
);
1408 dhdsdio_checkdied(bus
, NULL
, 0);
1409 dhd_os_sdunlock(bus
->dhd
);
1410 #endif /* DHD_DEBUG */
1411 } else if (pending
== true) {
1412 DHD_CTL(("%s: cancelled\n", __func__
));
1413 return -ERESTARTSYS
;
1415 DHD_CTL(("%s: resumed for unknown reason?\n", __func__
));
1417 dhd_os_sdlock(bus
->dhd
);
1418 dhdsdio_checkdied(bus
, NULL
, 0);
1419 dhd_os_sdunlock(bus
->dhd
);
1420 #endif /* DHD_DEBUG */
1424 bus
->dhd
->rx_ctlpkts
++;
1426 bus
->dhd
->rx_ctlerrs
++;
1428 return rxlen
? (int)rxlen
: -ETIMEDOUT
;
1467 const bcm_iovar_t dhdsdio_iovars
[] = {
1468 {"intr", IOV_INTR
, 0, IOVT_BOOL
, 0},
1469 {"sleep", IOV_SLEEP
, 0, IOVT_BOOL
, 0},
1470 {"pollrate", IOV_POLLRATE
, 0, IOVT_UINT32
, 0},
1471 {"idletime", IOV_IDLETIME
, 0, IOVT_INT32
, 0},
1472 {"idleclock", IOV_IDLECLOCK
, 0, IOVT_INT32
, 0},
1473 {"sd1idle", IOV_SD1IDLE
, 0, IOVT_BOOL
, 0},
1474 {"membytes", IOV_MEMBYTES
, 0, IOVT_BUFFER
, 2 * sizeof(int)},
1475 {"memsize", IOV_MEMSIZE
, 0, IOVT_UINT32
, 0},
1476 {"download", IOV_DOWNLOAD
, 0, IOVT_BOOL
, 0},
1477 {"vars", IOV_VARS
, 0, IOVT_BUFFER
, 0},
1478 {"sdiod_drive", IOV_SDIOD_DRIVE
, 0, IOVT_UINT32
, 0},
1479 {"readahead", IOV_READAHEAD
, 0, IOVT_BOOL
, 0},
1480 {"sdrxchain", IOV_SDRXCHAIN
, 0, IOVT_BOOL
, 0},
1481 {"alignctl", IOV_ALIGNCTL
, 0, IOVT_BOOL
, 0},
1482 {"sdalign", IOV_SDALIGN
, 0, IOVT_BOOL
, 0},
1483 {"devreset", IOV_DEVRESET
, 0, IOVT_BOOL
, 0},
1485 {"sdreg", IOV_SDREG
, 0, IOVT_BUFFER
, sizeof(sdreg_t
)}
1487 {"sbreg", IOV_SBREG
, 0, IOVT_BUFFER
, sizeof(sdreg_t
)}
1489 {"sd_cis", IOV_SDCIS
, 0, IOVT_BUFFER
, DHD_IOCTL_MAXLEN
}
1491 {"forcealign", IOV_FORCEEVEN
, 0, IOVT_BOOL
, 0}
1493 {"txbound", IOV_TXBOUND
, 0, IOVT_UINT32
, 0}
1495 {"rxbound", IOV_RXBOUND
, 0, IOVT_UINT32
, 0}
1497 {"txminmax", IOV_TXMINMAX
, 0, IOVT_UINT32
, 0}
1499 {"cpu", IOV_CPU
, 0, IOVT_BOOL
, 0}
1502 {"checkdied", IOV_CHECKDIED
, 0, IOVT_BUFFER
, 0}
1504 #endif /* DHD_DEBUG */
1505 #endif /* DHD_DEBUG */
1507 {"extloop", IOV_EXTLOOP
, 0, IOVT_BOOL
, 0}
1509 {"pktgen", IOV_PKTGEN
, 0, IOVT_BUFFER
, sizeof(dhd_pktgen_t
)}
1517 dhd_dump_pct(struct bcmstrbuf
*strbuf
, char *desc
, uint num
, uint div
)
1522 bcm_bprintf(strbuf
, "%s N/A", desc
);
1525 q2
= (100 * (num
- (q1
* div
))) / div
;
1526 bcm_bprintf(strbuf
, "%s %d.%02d", desc
, q1
, q2
);
1530 void dhd_bus_dump(dhd_pub_t
*dhdp
, struct bcmstrbuf
*strbuf
)
1532 dhd_bus_t
*bus
= dhdp
->bus
;
1534 bcm_bprintf(strbuf
, "Bus SDIO structure:\n");
1536 "hostintmask 0x%08x intstatus 0x%08x sdpcm_ver %d\n",
1537 bus
->hostintmask
, bus
->intstatus
, bus
->sdpcm_ver
);
1539 "fcstate %d qlen %d tx_seq %d, max %d, rxskip %d rxlen %d rx_seq %d\n",
1540 bus
->fcstate
, pktq_len(&bus
->txq
), bus
->tx_seq
, bus
->tx_max
,
1541 bus
->rxskip
, bus
->rxlen
, bus
->rx_seq
);
1542 bcm_bprintf(strbuf
, "intr %d intrcount %d lastintrs %d spurious %d\n",
1543 bus
->intr
, bus
->intrcount
, bus
->lastintrs
, bus
->spurious
);
1544 bcm_bprintf(strbuf
, "pollrate %d pollcnt %d regfails %d\n",
1545 bus
->pollrate
, bus
->pollcnt
, bus
->regfails
);
1547 bcm_bprintf(strbuf
, "\nAdditional counters:\n");
1549 "tx_sderrs %d fcqueued %d rxrtx %d rx_toolong %d rxc_errors %d\n",
1550 bus
->tx_sderrs
, bus
->fcqueued
, bus
->rxrtx
, bus
->rx_toolong
,
1552 bcm_bprintf(strbuf
, "rx_hdrfail %d badhdr %d badseq %d\n",
1553 bus
->rx_hdrfail
, bus
->rx_badhdr
, bus
->rx_badseq
);
1554 bcm_bprintf(strbuf
, "fc_rcvd %d, fc_xoff %d, fc_xon %d\n", bus
->fc_rcvd
,
1555 bus
->fc_xoff
, bus
->fc_xon
);
1556 bcm_bprintf(strbuf
, "rxglomfail %d, rxglomframes %d, rxglompkts %d\n",
1557 bus
->rxglomfail
, bus
->rxglomframes
, bus
->rxglompkts
);
1558 bcm_bprintf(strbuf
, "f2rx (hdrs/data) %d (%d/%d), f2tx %d f1regs %d\n",
1559 (bus
->f2rxhdrs
+ bus
->f2rxdata
), bus
->f2rxhdrs
,
1560 bus
->f2rxdata
, bus
->f2txdata
, bus
->f1regdata
);
1562 dhd_dump_pct(strbuf
, "\nRx: pkts/f2rd", bus
->dhd
->rx_packets
,
1563 (bus
->f2rxhdrs
+ bus
->f2rxdata
));
1564 dhd_dump_pct(strbuf
, ", pkts/f1sd", bus
->dhd
->rx_packets
,
1566 dhd_dump_pct(strbuf
, ", pkts/sd", bus
->dhd
->rx_packets
,
1567 (bus
->f2rxhdrs
+ bus
->f2rxdata
+ bus
->f1regdata
));
1568 dhd_dump_pct(strbuf
, ", pkts/int", bus
->dhd
->rx_packets
,
1570 bcm_bprintf(strbuf
, "\n");
1572 dhd_dump_pct(strbuf
, "Rx: glom pct", (100 * bus
->rxglompkts
),
1573 bus
->dhd
->rx_packets
);
1574 dhd_dump_pct(strbuf
, ", pkts/glom", bus
->rxglompkts
,
1576 bcm_bprintf(strbuf
, "\n");
1578 dhd_dump_pct(strbuf
, "Tx: pkts/f2wr", bus
->dhd
->tx_packets
,
1580 dhd_dump_pct(strbuf
, ", pkts/f1sd", bus
->dhd
->tx_packets
,
1582 dhd_dump_pct(strbuf
, ", pkts/sd", bus
->dhd
->tx_packets
,
1583 (bus
->f2txdata
+ bus
->f1regdata
));
1584 dhd_dump_pct(strbuf
, ", pkts/int", bus
->dhd
->tx_packets
,
1586 bcm_bprintf(strbuf
, "\n");
1588 dhd_dump_pct(strbuf
, "Total: pkts/f2rw",
1589 (bus
->dhd
->tx_packets
+ bus
->dhd
->rx_packets
),
1590 (bus
->f2txdata
+ bus
->f2rxhdrs
+ bus
->f2rxdata
));
1591 dhd_dump_pct(strbuf
, ", pkts/f1sd",
1592 (bus
->dhd
->tx_packets
+ bus
->dhd
->rx_packets
),
1594 dhd_dump_pct(strbuf
, ", pkts/sd",
1595 (bus
->dhd
->tx_packets
+ bus
->dhd
->rx_packets
),
1596 (bus
->f2txdata
+ bus
->f2rxhdrs
+ bus
->f2rxdata
+
1598 dhd_dump_pct(strbuf
, ", pkts/int",
1599 (bus
->dhd
->tx_packets
+ bus
->dhd
->rx_packets
),
1601 bcm_bprintf(strbuf
, "\n\n");
1605 if (bus
->pktgen_count
) {
1606 bcm_bprintf(strbuf
, "pktgen config and count:\n");
1608 "freq %d count %d print %d total %d min %d len %d\n",
1609 bus
->pktgen_freq
, bus
->pktgen_count
,
1610 bus
->pktgen_print
, bus
->pktgen_total
,
1611 bus
->pktgen_minlen
, bus
->pktgen_maxlen
);
1612 bcm_bprintf(strbuf
, "send attempts %d rcvd %d fail %d\n",
1613 bus
->pktgen_sent
, bus
->pktgen_rcvd
,
1618 bcm_bprintf(strbuf
, "dpc_sched %d host interrupt%spending\n",
1620 (bcmsdh_intr_pending(bus
->sdh
) ? " " : " not "));
1621 bcm_bprintf(strbuf
, "blocksize %d roundup %d\n", bus
->blocksize
,
1623 #endif /* DHD_DEBUG */
1625 "clkstate %d activity %d idletime %d idlecount %d sleeping %d\n",
1626 bus
->clkstate
, bus
->activity
, bus
->idletime
, bus
->idlecount
,
1630 void dhd_bus_clearcounts(dhd_pub_t
*dhdp
)
1632 dhd_bus_t
*bus
= (dhd_bus_t
*) dhdp
->bus
;
1634 bus
->intrcount
= bus
->lastintrs
= bus
->spurious
= bus
->regfails
= 0;
1635 bus
->rxrtx
= bus
->rx_toolong
= bus
->rxc_errors
= 0;
1636 bus
->rx_hdrfail
= bus
->rx_badhdr
= bus
->rx_badseq
= 0;
1637 bus
->tx_sderrs
= bus
->fc_rcvd
= bus
->fc_xoff
= bus
->fc_xon
= 0;
1638 bus
->rxglomfail
= bus
->rxglomframes
= bus
->rxglompkts
= 0;
1639 bus
->f2rxhdrs
= bus
->f2rxdata
= bus
->f2txdata
= bus
->f1regdata
= 0;
1643 static int dhdsdio_pktgen_get(dhd_bus_t
*bus
, u8
*arg
)
1645 dhd_pktgen_t pktgen
;
1647 pktgen
.version
= DHD_PKTGEN_VERSION
;
1648 pktgen
.freq
= bus
->pktgen_freq
;
1649 pktgen
.count
= bus
->pktgen_count
;
1650 pktgen
.print
= bus
->pktgen_print
;
1651 pktgen
.total
= bus
->pktgen_total
;
1652 pktgen
.minlen
= bus
->pktgen_minlen
;
1653 pktgen
.maxlen
= bus
->pktgen_maxlen
;
1654 pktgen
.numsent
= bus
->pktgen_sent
;
1655 pktgen
.numrcvd
= bus
->pktgen_rcvd
;
1656 pktgen
.numfail
= bus
->pktgen_fail
;
1657 pktgen
.mode
= bus
->pktgen_mode
;
1658 pktgen
.stop
= bus
->pktgen_stop
;
1660 memcpy(arg
, &pktgen
, sizeof(pktgen
));
1665 static int dhdsdio_pktgen_set(dhd_bus_t
*bus
, u8
*arg
)
1667 dhd_pktgen_t pktgen
;
1668 uint oldcnt
, oldmode
;
1670 memcpy(&pktgen
, arg
, sizeof(pktgen
));
1671 if (pktgen
.version
!= DHD_PKTGEN_VERSION
)
1674 oldcnt
= bus
->pktgen_count
;
1675 oldmode
= bus
->pktgen_mode
;
1677 bus
->pktgen_freq
= pktgen
.freq
;
1678 bus
->pktgen_count
= pktgen
.count
;
1679 bus
->pktgen_print
= pktgen
.print
;
1680 bus
->pktgen_total
= pktgen
.total
;
1681 bus
->pktgen_minlen
= pktgen
.minlen
;
1682 bus
->pktgen_maxlen
= pktgen
.maxlen
;
1683 bus
->pktgen_mode
= pktgen
.mode
;
1684 bus
->pktgen_stop
= pktgen
.stop
;
1686 bus
->pktgen_tick
= bus
->pktgen_ptick
= 0;
1687 bus
->pktgen_len
= max(bus
->pktgen_len
, bus
->pktgen_minlen
);
1688 bus
->pktgen_len
= min(bus
->pktgen_len
, bus
->pktgen_maxlen
);
1690 /* Clear counts for a new pktgen (mode change, or was stopped) */
1691 if (bus
->pktgen_count
&& (!oldcnt
|| oldmode
!= bus
->pktgen_mode
))
1692 bus
->pktgen_sent
= bus
->pktgen_rcvd
= bus
->pktgen_fail
= 0;
1699 dhdsdio_membytes(dhd_bus_t
*bus
, bool write
, u32 address
, u8
*data
,
1706 /* Determine initial transfer parameters */
1707 sdaddr
= address
& SBSDIO_SB_OFT_ADDR_MASK
;
1708 if ((sdaddr
+ size
) & SBSDIO_SBWINDOW_MASK
)
1709 dsize
= (SBSDIO_SB_OFT_ADDR_LIMIT
- sdaddr
);
1713 /* Set the backplane window to include the start address */
1714 bcmerror
= dhdsdio_set_siaddr_window(bus
, address
);
1716 DHD_ERROR(("%s: window change failed\n", __func__
));
1720 /* Do the transfer(s) */
1722 DHD_INFO(("%s: %s %d bytes at offset 0x%08x in window 0x%08x\n",
1723 __func__
, (write
? "write" : "read"), dsize
,
1724 sdaddr
, (address
& SBSDIO_SBWINDOW_MASK
)));
1726 bcmsdh_rwdata(bus
->sdh
, write
, sdaddr
, data
, dsize
);
1728 DHD_ERROR(("%s: membytes transfer failed\n", __func__
));
1732 /* Adjust for next transfer (if any) */
1737 bcmerror
= dhdsdio_set_siaddr_window(bus
, address
);
1739 DHD_ERROR(("%s: window change failed\n",
1744 dsize
= min_t(uint
, SBSDIO_SB_OFT_ADDR_LIMIT
, size
);
1749 /* Return the window to backplane enumeration space for core access */
1750 if (dhdsdio_set_siaddr_window(bus
, bcmsdh_cur_sbwad(bus
->sdh
))) {
1751 DHD_ERROR(("%s: FAILED to set window back to 0x%x\n",
1752 __func__
, bcmsdh_cur_sbwad(bus
->sdh
)));
1759 static int dhdsdio_readshared(dhd_bus_t
*bus
, sdpcm_shared_t
*sh
)
1764 /* Read last word in memory to determine address of
1765 sdpcm_shared structure */
1766 rv
= dhdsdio_membytes(bus
, false, bus
->ramsize
- 4, (u8
*)&addr
, 4);
1770 addr
= le32_to_cpu(addr
);
1772 DHD_INFO(("sdpcm_shared address 0x%08X\n", addr
));
1775 * Check if addr is valid.
1776 * NVRAM length at the end of memory should have been overwritten.
1778 if (addr
== 0 || ((~addr
>> 16) & 0xffff) == (addr
& 0xffff)) {
1779 DHD_ERROR(("%s: address (0x%08x) of sdpcm_shared invalid\n",
1784 /* Read hndrte_shared structure */
1785 rv
= dhdsdio_membytes(bus
, false, addr
, (u8
*) sh
,
1786 sizeof(sdpcm_shared_t
));
1791 sh
->flags
= le32_to_cpu(sh
->flags
);
1792 sh
->trap_addr
= le32_to_cpu(sh
->trap_addr
);
1793 sh
->assert_exp_addr
= le32_to_cpu(sh
->assert_exp_addr
);
1794 sh
->assert_file_addr
= le32_to_cpu(sh
->assert_file_addr
);
1795 sh
->assert_line
= le32_to_cpu(sh
->assert_line
);
1796 sh
->console_addr
= le32_to_cpu(sh
->console_addr
);
1797 sh
->msgtrace_addr
= le32_to_cpu(sh
->msgtrace_addr
);
1799 if ((sh
->flags
& SDPCM_SHARED_VERSION_MASK
) != SDPCM_SHARED_VERSION
) {
1800 DHD_ERROR(("%s: sdpcm_shared version %d in dhd "
1801 "is different than sdpcm_shared version %d in dongle\n",
1802 __func__
, SDPCM_SHARED_VERSION
,
1803 sh
->flags
& SDPCM_SHARED_VERSION_MASK
));
1810 static int dhdsdio_checkdied(dhd_bus_t
*bus
, u8
*data
, uint size
)
1814 char *mbuffer
= NULL
;
1815 uint maxstrlen
= 256;
1818 sdpcm_shared_t sdpcm_shared
;
1819 struct bcmstrbuf strbuf
;
1821 DHD_TRACE(("%s: Enter\n", __func__
));
1825 * Called after a rx ctrl timeout. "data" is NULL.
1826 * allocate memory to trace the trap or assert.
1829 mbuffer
= data
= kmalloc(msize
, GFP_ATOMIC
);
1830 if (mbuffer
== NULL
) {
1831 DHD_ERROR(("%s: kmalloc(%d) failed\n", __func__
,
1833 bcmerror
= BCME_NOMEM
;
1838 str
= kmalloc(maxstrlen
, GFP_ATOMIC
);
1840 DHD_ERROR(("%s: kmalloc(%d) failed\n", __func__
, maxstrlen
));
1841 bcmerror
= BCME_NOMEM
;
1845 bcmerror
= dhdsdio_readshared(bus
, &sdpcm_shared
);
1849 bcm_binit(&strbuf
, data
, size
);
1851 bcm_bprintf(&strbuf
,
1852 "msgtrace address : 0x%08X\nconsole address : 0x%08X\n",
1853 sdpcm_shared
.msgtrace_addr
, sdpcm_shared
.console_addr
);
1855 if ((sdpcm_shared
.flags
& SDPCM_SHARED_ASSERT_BUILT
) == 0) {
1856 /* NOTE: Misspelled assert is intentional - DO NOT FIX.
1857 * (Avoids conflict with real asserts for programmatic
1858 * parsing of output.)
1860 bcm_bprintf(&strbuf
, "Assrt not built in dongle\n");
1863 if ((sdpcm_shared
.flags
& (SDPCM_SHARED_ASSERT
| SDPCM_SHARED_TRAP
)) ==
1865 /* NOTE: Misspelled assert is intentional - DO NOT FIX.
1866 * (Avoids conflict with real asserts for programmatic
1867 * parsing of output.)
1869 bcm_bprintf(&strbuf
, "No trap%s in dongle",
1870 (sdpcm_shared
.flags
& SDPCM_SHARED_ASSERT_BUILT
)
1873 if (sdpcm_shared
.flags
& SDPCM_SHARED_ASSERT
) {
1874 /* Download assert */
1875 bcm_bprintf(&strbuf
, "Dongle assert");
1876 if (sdpcm_shared
.assert_exp_addr
!= 0) {
1878 bcmerror
= dhdsdio_membytes(bus
, false,
1879 sdpcm_shared
.assert_exp_addr
,
1880 (u8
*) str
, maxstrlen
);
1884 str
[maxstrlen
- 1] = '\0';
1885 bcm_bprintf(&strbuf
, " expr \"%s\"", str
);
1888 if (sdpcm_shared
.assert_file_addr
!= 0) {
1890 bcmerror
= dhdsdio_membytes(bus
, false,
1891 sdpcm_shared
.assert_file_addr
,
1892 (u8
*) str
, maxstrlen
);
1896 str
[maxstrlen
- 1] = '\0';
1897 bcm_bprintf(&strbuf
, " file \"%s\"", str
);
1900 bcm_bprintf(&strbuf
, " line %d ",
1901 sdpcm_shared
.assert_line
);
1904 if (sdpcm_shared
.flags
& SDPCM_SHARED_TRAP
) {
1905 bcmerror
= dhdsdio_membytes(bus
, false,
1906 sdpcm_shared
.trap_addr
, (u8
*)&tr
,
1911 bcm_bprintf(&strbuf
,
1912 "Dongle trap type 0x%x @ epc 0x%x, cpsr 0x%x, spsr 0x%x, sp 0x%x,"
1913 "lp 0x%x, rpc 0x%x Trap offset 0x%x, "
1914 "r0 0x%x, r1 0x%x, r2 0x%x, r3 0x%x, r4 0x%x, r5 0x%x, r6 0x%x, r7 0x%x\n",
1915 tr
.type
, tr
.epc
, tr
.cpsr
, tr
.spsr
, tr
.r13
,
1916 tr
.r14
, tr
.pc
, sdpcm_shared
.trap_addr
,
1917 tr
.r0
, tr
.r1
, tr
.r2
, tr
.r3
, tr
.r4
, tr
.r5
,
1922 if (sdpcm_shared
.flags
& (SDPCM_SHARED_ASSERT
| SDPCM_SHARED_TRAP
))
1923 DHD_ERROR(("%s: %s\n", __func__
, strbuf
.origbuf
));
1926 if (sdpcm_shared
.flags
& SDPCM_SHARED_TRAP
) {
1927 /* Mem dump to a file on device */
1928 dhdsdio_mem_dump(bus
);
1930 #endif /* DHD_DEBUG */
1939 static int dhdsdio_mem_dump(dhd_bus_t
*bus
)
1942 int size
; /* Full mem size */
1943 int start
= 0; /* Start address */
1944 int read_size
= 0; /* Read size of each iteration */
1945 u8
*buf
= NULL
, *databuf
= NULL
;
1947 /* Get full mem size */
1948 size
= bus
->ramsize
;
1949 buf
= kmalloc(size
, GFP_ATOMIC
);
1951 DHD_ERROR(("%s: Out of memory (%d bytes)\n", __func__
, size
));
1955 /* Read mem content */
1956 printk(KERN_DEBUG
"Dump dongle memory");
1959 read_size
= min(MEMBLOCK
, size
);
1960 ret
= dhdsdio_membytes(bus
, false, start
, databuf
, read_size
);
1962 DHD_ERROR(("%s: Error membytes %d\n", __func__
, ret
));
1968 /* Decrement size and increment start address */
1971 databuf
+= read_size
;
1973 printk(KERN_DEBUG
"Done\n");
1975 /* free buf before return !!! */
1976 if (write_to_file(bus
->dhd
, buf
, bus
->ramsize
)) {
1977 DHD_ERROR(("%s: Error writing to files\n", __func__
));
1981 /* buf free handled in write_to_file, not here */
1985 #define CONSOLE_LINE_MAX 192
1987 static int dhdsdio_readconsole(dhd_bus_t
*bus
)
1989 dhd_console_t
*c
= &bus
->console
;
1990 u8 line
[CONSOLE_LINE_MAX
], ch
;
1994 /* Don't do anything until FWREADY updates console address */
1995 if (bus
->console_addr
== 0)
1998 /* Read console log struct */
1999 addr
= bus
->console_addr
+ offsetof(hndrte_cons_t
, log
);
2000 rv
= dhdsdio_membytes(bus
, false, addr
, (u8
*)&c
->log
,
2005 /* Allocate console buffer (one time only) */
2006 if (c
->buf
== NULL
) {
2007 c
->bufsize
= le32_to_cpu(c
->log
.buf_size
);
2008 c
->buf
= kmalloc(c
->bufsize
, GFP_ATOMIC
);
2013 idx
= le32_to_cpu(c
->log
.idx
);
2015 /* Protect against corrupt value */
2016 if (idx
> c
->bufsize
)
2019 /* Skip reading the console buffer if the index pointer
2024 /* Read the console buffer */
2025 addr
= le32_to_cpu(c
->log
.buf
);
2026 rv
= dhdsdio_membytes(bus
, false, addr
, c
->buf
, c
->bufsize
);
2030 while (c
->last
!= idx
) {
2031 for (n
= 0; n
< CONSOLE_LINE_MAX
- 2; n
++) {
2032 if (c
->last
== idx
) {
2033 /* This would output a partial line.
2035 * the buffer pointer and output this
2036 * line next time around.
2041 c
->last
= c
->bufsize
- n
;
2044 ch
= c
->buf
[c
->last
];
2045 c
->last
= (c
->last
+ 1) % c
->bufsize
;
2052 if (line
[n
- 1] == '\r')
2055 printk(KERN_DEBUG
"CONSOLE: %s\n", line
);
2062 #endif /* DHD_DEBUG */
2064 int dhdsdio_downloadvars(dhd_bus_t
*bus
, void *arg
, int len
)
2066 int bcmerror
= BCME_OK
;
2068 DHD_TRACE(("%s: Enter\n", __func__
));
2070 /* Basic sanity checks */
2072 bcmerror
= BCME_NOTDOWN
;
2076 bcmerror
= BCME_BUFTOOSHORT
;
2080 /* Free the old ones and replace with passed variables */
2083 bus
->vars
= kmalloc(len
, GFP_ATOMIC
);
2084 bus
->varsz
= bus
->vars
? len
: 0;
2085 if (bus
->vars
== NULL
) {
2086 bcmerror
= BCME_NOMEM
;
2090 /* Copy the passed variables, which should include the
2091 terminating double-null */
2092 memcpy(bus
->vars
, arg
, bus
->varsz
);
2098 dhdsdio_doiovar(dhd_bus_t
*bus
, const bcm_iovar_t
*vi
, u32 actionid
,
2099 const char *name
, void *params
, int plen
, void *arg
, int len
,
2106 DHD_TRACE(("%s: Enter, action %d name %s params %p plen %d arg %p "
2107 "len %d val_size %d\n",
2108 __func__
, actionid
, name
, params
, plen
, arg
, len
, val_size
));
2110 bcmerror
= bcm_iovar_lencheck(vi
, arg
, len
, IOV_ISSET(actionid
));
2114 if (plen
>= (int)sizeof(int_val
))
2115 memcpy(&int_val
, params
, sizeof(int_val
));
2117 bool_val
= (int_val
!= 0) ? true : false;
2119 /* Some ioctls use the bus */
2120 dhd_os_sdlock(bus
->dhd
);
2122 /* Check if dongle is in reset. If so, only allow DEVRESET iovars */
2123 if (bus
->dhd
->dongle_reset
&& !(actionid
== IOV_SVAL(IOV_DEVRESET
) ||
2124 actionid
== IOV_GVAL(IOV_DEVRESET
))) {
2125 bcmerror
= BCME_NOTREADY
;
2129 /* Handle sleep stuff before any clock mucking */
2130 if (vi
->varid
== IOV_SLEEP
) {
2131 if (IOV_ISSET(actionid
)) {
2132 bcmerror
= dhdsdio_bussleep(bus
, bool_val
);
2134 int_val
= (s32
) bus
->sleeping
;
2135 memcpy(arg
, &int_val
, val_size
);
2140 /* Request clock to allow SDIO accesses */
2141 if (!bus
->dhd
->dongle_reset
) {
2143 dhdsdio_clkctl(bus
, CLK_AVAIL
, false);
2147 case IOV_GVAL(IOV_INTR
):
2148 int_val
= (s32
) bus
->intr
;
2149 memcpy(arg
, &int_val
, val_size
);
2152 case IOV_SVAL(IOV_INTR
):
2153 bus
->intr
= bool_val
;
2154 bus
->intdis
= false;
2157 DHD_INTR(("%s: enable SDIO device interrupts\n",
2159 bcmsdh_intr_enable(bus
->sdh
);
2161 DHD_INTR(("%s: disable SDIO interrupts\n",
2163 bcmsdh_intr_disable(bus
->sdh
);
2168 case IOV_GVAL(IOV_POLLRATE
):
2169 int_val
= (s32
) bus
->pollrate
;
2170 memcpy(arg
, &int_val
, val_size
);
2173 case IOV_SVAL(IOV_POLLRATE
):
2174 bus
->pollrate
= (uint
) int_val
;
2175 bus
->poll
= (bus
->pollrate
!= 0);
2178 case IOV_GVAL(IOV_IDLETIME
):
2179 int_val
= bus
->idletime
;
2180 memcpy(arg
, &int_val
, val_size
);
2183 case IOV_SVAL(IOV_IDLETIME
):
2184 if ((int_val
< 0) && (int_val
!= DHD_IDLE_IMMEDIATE
))
2185 bcmerror
= BCME_BADARG
;
2187 bus
->idletime
= int_val
;
2190 case IOV_GVAL(IOV_IDLECLOCK
):
2191 int_val
= (s32
) bus
->idleclock
;
2192 memcpy(arg
, &int_val
, val_size
);
2195 case IOV_SVAL(IOV_IDLECLOCK
):
2196 bus
->idleclock
= int_val
;
2199 case IOV_GVAL(IOV_SD1IDLE
):
2200 int_val
= (s32
) sd1idle
;
2201 memcpy(arg
, &int_val
, val_size
);
2204 case IOV_SVAL(IOV_SD1IDLE
):
2208 case IOV_SVAL(IOV_MEMBYTES
):
2209 case IOV_GVAL(IOV_MEMBYTES
):
2215 bool set
= (actionid
== IOV_SVAL(IOV_MEMBYTES
));
2217 ASSERT(plen
>= 2 * sizeof(int));
2219 address
= (u32
) int_val
;
2220 memcpy(&int_val
, (char *)params
+ sizeof(int_val
),
2222 size
= (uint
) int_val
;
2224 /* Do some validation */
2225 dsize
= set
? plen
- (2 * sizeof(int)) : len
;
2227 DHD_ERROR(("%s: error on %s membytes, addr "
2228 "0x%08x size %d dsize %d\n",
2229 __func__
, (set
? "set" : "get"),
2230 address
, size
, dsize
));
2231 bcmerror
= BCME_BADARG
;
2235 DHD_INFO(("%s: Request to %s %d bytes at address "
2237 __func__
, (set
? "write" : "read"), size
, address
));
2239 /* If we know about SOCRAM, check for a fit */
2240 if ((bus
->orig_ramsize
) &&
2241 ((address
> bus
->orig_ramsize
)
2242 || (address
+ size
> bus
->orig_ramsize
))) {
2243 DHD_ERROR(("%s: ramsize 0x%08x doesn't have %d "
2244 "bytes at 0x%08x\n",
2245 __func__
, bus
->orig_ramsize
, size
, address
));
2246 bcmerror
= BCME_BADARG
;
2250 /* Generate the actual data pointer */
2252 set
? (u8
*) params
+
2253 2 * sizeof(int) : (u8
*) arg
;
2255 /* Call to do the transfer */
2257 dhdsdio_membytes(bus
, set
, address
, data
, size
);
2262 case IOV_GVAL(IOV_MEMSIZE
):
2263 int_val
= (s32
) bus
->ramsize
;
2264 memcpy(arg
, &int_val
, val_size
);
2267 case IOV_GVAL(IOV_SDIOD_DRIVE
):
2268 int_val
= (s32
) dhd_sdiod_drive_strength
;
2269 memcpy(arg
, &int_val
, val_size
);
2272 case IOV_SVAL(IOV_SDIOD_DRIVE
):
2273 dhd_sdiod_drive_strength
= int_val
;
2274 si_sdiod_drive_strength_init(bus
->sih
,
2275 dhd_sdiod_drive_strength
);
2278 case IOV_SVAL(IOV_DOWNLOAD
):
2279 bcmerror
= dhdsdio_download_state(bus
, bool_val
);
2282 case IOV_SVAL(IOV_VARS
):
2283 bcmerror
= dhdsdio_downloadvars(bus
, arg
, len
);
2286 case IOV_GVAL(IOV_READAHEAD
):
2287 int_val
= (s32
) dhd_readahead
;
2288 memcpy(arg
, &int_val
, val_size
);
2291 case IOV_SVAL(IOV_READAHEAD
):
2292 if (bool_val
&& !dhd_readahead
)
2294 dhd_readahead
= bool_val
;
2297 case IOV_GVAL(IOV_SDRXCHAIN
):
2298 int_val
= (s32
) bus
->use_rxchain
;
2299 memcpy(arg
, &int_val
, val_size
);
2302 case IOV_SVAL(IOV_SDRXCHAIN
):
2303 if (bool_val
&& !bus
->sd_rxchain
)
2304 bcmerror
= BCME_UNSUPPORTED
;
2306 bus
->use_rxchain
= bool_val
;
2308 case IOV_GVAL(IOV_ALIGNCTL
):
2309 int_val
= (s32
) dhd_alignctl
;
2310 memcpy(arg
, &int_val
, val_size
);
2313 case IOV_SVAL(IOV_ALIGNCTL
):
2314 dhd_alignctl
= bool_val
;
2317 case IOV_GVAL(IOV_SDALIGN
):
2318 int_val
= DHD_SDALIGN
;
2319 memcpy(arg
, &int_val
, val_size
);
2323 case IOV_GVAL(IOV_VARS
):
2324 if (bus
->varsz
< (uint
) len
)
2325 memcpy(arg
, bus
->vars
, bus
->varsz
);
2327 bcmerror
= BCME_BUFTOOSHORT
;
2329 #endif /* DHD_DEBUG */
2332 case IOV_GVAL(IOV_SDREG
):
2337 sd_ptr
= (sdreg_t
*) params
;
2339 addr
= (unsigned long)bus
->regs
+ sd_ptr
->offset
;
2340 size
= sd_ptr
->func
;
2341 int_val
= (s32
) bcmsdh_reg_read(bus
->sdh
, addr
, size
);
2342 if (bcmsdh_regfail(bus
->sdh
))
2343 bcmerror
= BCME_SDIO_ERROR
;
2344 memcpy(arg
, &int_val
, sizeof(s32
));
2348 case IOV_SVAL(IOV_SDREG
):
2353 sd_ptr
= (sdreg_t
*) params
;
2355 addr
= (unsigned long)bus
->regs
+ sd_ptr
->offset
;
2356 size
= sd_ptr
->func
;
2357 bcmsdh_reg_write(bus
->sdh
, addr
, size
, sd_ptr
->value
);
2358 if (bcmsdh_regfail(bus
->sdh
))
2359 bcmerror
= BCME_SDIO_ERROR
;
2363 /* Same as above, but offset is not backplane
2365 case IOV_GVAL(IOV_SBREG
):
2370 memcpy(&sdreg
, params
, sizeof(sdreg
));
2372 addr
= SI_ENUM_BASE
+ sdreg
.offset
;
2374 int_val
= (s32
) bcmsdh_reg_read(bus
->sdh
, addr
, size
);
2375 if (bcmsdh_regfail(bus
->sdh
))
2376 bcmerror
= BCME_SDIO_ERROR
;
2377 memcpy(arg
, &int_val
, sizeof(s32
));
2381 case IOV_SVAL(IOV_SBREG
):
2386 memcpy(&sdreg
, params
, sizeof(sdreg
));
2388 addr
= SI_ENUM_BASE
+ sdreg
.offset
;
2390 bcmsdh_reg_write(bus
->sdh
, addr
, size
, sdreg
.value
);
2391 if (bcmsdh_regfail(bus
->sdh
))
2392 bcmerror
= BCME_SDIO_ERROR
;
2396 case IOV_GVAL(IOV_SDCIS
):
2400 strcat(arg
, "\nFunc 0\n");
2401 bcmsdh_cis_read(bus
->sdh
, 0x10,
2402 (u8
*) arg
+ strlen(arg
),
2403 SBSDIO_CIS_SIZE_LIMIT
);
2404 strcat(arg
, "\nFunc 1\n");
2405 bcmsdh_cis_read(bus
->sdh
, 0x11,
2406 (u8
*) arg
+ strlen(arg
),
2407 SBSDIO_CIS_SIZE_LIMIT
);
2408 strcat(arg
, "\nFunc 2\n");
2409 bcmsdh_cis_read(bus
->sdh
, 0x12,
2410 (u8
*) arg
+ strlen(arg
),
2411 SBSDIO_CIS_SIZE_LIMIT
);
2415 case IOV_GVAL(IOV_FORCEEVEN
):
2416 int_val
= (s32
) forcealign
;
2417 memcpy(arg
, &int_val
, val_size
);
2420 case IOV_SVAL(IOV_FORCEEVEN
):
2421 forcealign
= bool_val
;
2424 case IOV_GVAL(IOV_TXBOUND
):
2425 int_val
= (s32
) dhd_txbound
;
2426 memcpy(arg
, &int_val
, val_size
);
2429 case IOV_SVAL(IOV_TXBOUND
):
2430 dhd_txbound
= (uint
) int_val
;
2433 case IOV_GVAL(IOV_RXBOUND
):
2434 int_val
= (s32
) dhd_rxbound
;
2435 memcpy(arg
, &int_val
, val_size
);
2438 case IOV_SVAL(IOV_RXBOUND
):
2439 dhd_rxbound
= (uint
) int_val
;
2442 case IOV_GVAL(IOV_TXMINMAX
):
2443 int_val
= (s32
) dhd_txminmax
;
2444 memcpy(arg
, &int_val
, val_size
);
2447 case IOV_SVAL(IOV_TXMINMAX
):
2448 dhd_txminmax
= (uint
) int_val
;
2450 #endif /* DHD_DEBUG */
2453 case IOV_GVAL(IOV_EXTLOOP
):
2454 int_val
= (s32
) bus
->ext_loop
;
2455 memcpy(arg
, &int_val
, val_size
);
2458 case IOV_SVAL(IOV_EXTLOOP
):
2459 bus
->ext_loop
= bool_val
;
2462 case IOV_GVAL(IOV_PKTGEN
):
2463 bcmerror
= dhdsdio_pktgen_get(bus
, arg
);
2466 case IOV_SVAL(IOV_PKTGEN
):
2467 bcmerror
= dhdsdio_pktgen_set(bus
, arg
);
2471 case IOV_SVAL(IOV_DEVRESET
):
2472 DHD_TRACE(("%s: Called set IOV_DEVRESET=%d dongle_reset=%d "
2474 __func__
, bool_val
, bus
->dhd
->dongle_reset
,
2475 bus
->dhd
->busstate
));
2477 dhd_bus_devreset(bus
->dhd
, (u8
) bool_val
);
2481 case IOV_GVAL(IOV_DEVRESET
):
2482 DHD_TRACE(("%s: Called get IOV_DEVRESET\n", __func__
));
2484 /* Get its status */
2485 int_val
= (bool) bus
->dhd
->dongle_reset
;
2486 memcpy(arg
, &int_val
, val_size
);
2491 bcmerror
= BCME_UNSUPPORTED
;
2496 if ((bus
->idletime
== DHD_IDLE_IMMEDIATE
) && !bus
->dpc_sched
) {
2497 bus
->activity
= false;
2498 dhdsdio_clkctl(bus
, CLK_NONE
, true);
2501 dhd_os_sdunlock(bus
->dhd
);
2503 if (actionid
== IOV_SVAL(IOV_DEVRESET
) && bool_val
== false)
2504 dhd_preinit_ioctls((dhd_pub_t
*) bus
->dhd
);
2509 static int dhdsdio_write_vars(dhd_bus_t
*bus
)
2517 char *nvram_ularray
;
2518 #endif /* DHD_DEBUG */
2520 /* Even if there are no vars are to be written, we still
2521 need to set the ramsize. */
2522 varsize
= bus
->varsz
? roundup(bus
->varsz
, 4) : 0;
2523 varaddr
= (bus
->ramsize
- 4) - varsize
;
2526 vbuffer
= kzalloc(varsize
, GFP_ATOMIC
);
2530 memcpy(vbuffer
, bus
->vars
, bus
->varsz
);
2532 /* Write the vars list */
2534 dhdsdio_membytes(bus
, true, varaddr
, vbuffer
, varsize
);
2536 /* Verify NVRAM bytes */
2537 DHD_INFO(("Compare NVRAM dl & ul; varsize=%d\n", varsize
));
2538 nvram_ularray
= kmalloc(varsize
, GFP_ATOMIC
);
2542 /* Upload image to verify downloaded contents. */
2543 memset(nvram_ularray
, 0xaa, varsize
);
2545 /* Read the vars list to temp buffer for comparison */
2547 dhdsdio_membytes(bus
, false, varaddr
, nvram_ularray
,
2550 DHD_ERROR(("%s: error %d on reading %d nvram bytes at "
2551 "0x%08x\n", __func__
, bcmerror
, varsize
, varaddr
));
2553 /* Compare the org NVRAM with the one read from RAM */
2554 if (memcmp(vbuffer
, nvram_ularray
, varsize
)) {
2555 DHD_ERROR(("%s: Downloaded NVRAM image is corrupted.\n",
2558 DHD_ERROR(("%s: Download/Upload/Compare of NVRAM ok.\n",
2561 kfree(nvram_ularray
);
2562 #endif /* DHD_DEBUG */
2567 /* adjust to the user specified RAM */
2568 DHD_INFO(("Physical memory size: %d, usable memory size: %d\n",
2569 bus
->orig_ramsize
, bus
->ramsize
));
2570 DHD_INFO(("Vars are at %d, orig varsize is %d\n", varaddr
, varsize
));
2571 varsize
= ((bus
->orig_ramsize
- 4) - varaddr
);
2574 * Determine the length token:
2575 * Varsize, converted to words, in lower 16-bits, checksum
2581 varsizew
= varsize
/ 4;
2582 varsizew
= (~varsizew
<< 16) | (varsizew
& 0x0000FFFF);
2583 varsizew
= cpu_to_le32(varsizew
);
2586 DHD_INFO(("New varsize is %d, length token=0x%08x\n", varsize
,
2589 /* Write the length token to the last word */
2590 bcmerror
= dhdsdio_membytes(bus
, true, (bus
->orig_ramsize
- 4),
2591 (u8
*)&varsizew
, 4);
2596 static int dhdsdio_download_state(dhd_bus_t
*bus
, bool enter
)
2601 /* To enter download state, disable ARM and reset SOCRAM.
2602 * To exit download state, simply reset ARM (default is RAM boot).
2606 bus
->alp_only
= true;
2608 if (!(si_setcore(bus
->sih
, ARM7S_CORE_ID
, 0)) &&
2609 !(si_setcore(bus
->sih
, ARMCM3_CORE_ID
, 0))) {
2610 DHD_ERROR(("%s: Failed to find ARM core!\n", __func__
));
2611 bcmerror
= BCME_ERROR
;
2615 si_core_disable(bus
->sih
, 0);
2616 if (bcmsdh_regfail(bus
->sdh
)) {
2617 bcmerror
= BCME_SDIO_ERROR
;
2621 if (!(si_setcore(bus
->sih
, SOCRAM_CORE_ID
, 0))) {
2622 DHD_ERROR(("%s: Failed to find SOCRAM core!\n",
2624 bcmerror
= BCME_ERROR
;
2628 si_core_reset(bus
->sih
, 0, 0);
2629 if (bcmsdh_regfail(bus
->sdh
)) {
2630 DHD_ERROR(("%s: Failure trying reset SOCRAM core?\n",
2632 bcmerror
= BCME_SDIO_ERROR
;
2636 /* Clear the top bit of memory */
2639 dhdsdio_membytes(bus
, true, bus
->ramsize
- 4,
2643 if (!(si_setcore(bus
->sih
, SOCRAM_CORE_ID
, 0))) {
2644 DHD_ERROR(("%s: Failed to find SOCRAM core!\n",
2646 bcmerror
= BCME_ERROR
;
2650 if (!si_iscoreup(bus
->sih
)) {
2651 DHD_ERROR(("%s: SOCRAM core is down after reset?\n",
2653 bcmerror
= BCME_ERROR
;
2657 bcmerror
= dhdsdio_write_vars(bus
);
2659 DHD_ERROR(("%s: no vars written to RAM\n", __func__
));
2663 if (!si_setcore(bus
->sih
, PCMCIA_CORE_ID
, 0) &&
2664 !si_setcore(bus
->sih
, SDIOD_CORE_ID
, 0)) {
2665 DHD_ERROR(("%s: Can't change back to SDIO core?\n",
2667 bcmerror
= BCME_ERROR
;
2670 W_SDREG(0xFFFFFFFF, &bus
->regs
->intstatus
, retries
);
2672 if (!(si_setcore(bus
->sih
, ARM7S_CORE_ID
, 0)) &&
2673 !(si_setcore(bus
->sih
, ARMCM3_CORE_ID
, 0))) {
2674 DHD_ERROR(("%s: Failed to find ARM core!\n", __func__
));
2675 bcmerror
= BCME_ERROR
;
2679 si_core_reset(bus
->sih
, 0, 0);
2680 if (bcmsdh_regfail(bus
->sdh
)) {
2681 DHD_ERROR(("%s: Failure trying to reset ARM core?\n",
2683 bcmerror
= BCME_SDIO_ERROR
;
2687 /* Allow HT Clock now that the ARM is running. */
2688 bus
->alp_only
= false;
2690 bus
->dhd
->busstate
= DHD_BUS_LOAD
;
2694 /* Always return to SDIOD core */
2695 if (!si_setcore(bus
->sih
, PCMCIA_CORE_ID
, 0))
2696 si_setcore(bus
->sih
, SDIOD_CORE_ID
, 0);
2702 dhd_bus_iovar_op(dhd_pub_t
*dhdp
, const char *name
,
2703 void *params
, int plen
, void *arg
, int len
, bool set
)
2705 dhd_bus_t
*bus
= dhdp
->bus
;
2706 const bcm_iovar_t
*vi
= NULL
;
2711 DHD_TRACE(("%s: Enter\n", __func__
));
2716 /* Get MUST have return space */
2717 ASSERT(set
|| (arg
&& len
));
2719 /* Set does NOT take qualifiers */
2720 ASSERT(!set
|| (!params
&& !plen
));
2722 /* Look up var locally; if not found pass to host driver */
2723 vi
= bcm_iovar_lookup(dhdsdio_iovars
, name
);
2725 dhd_os_sdlock(bus
->dhd
);
2729 /* Turn on clock in case SD command needs backplane */
2730 dhdsdio_clkctl(bus
, CLK_AVAIL
, false);
2733 bcmsdh_iovar_op(bus
->sdh
, name
, params
, plen
, arg
, len
,
2736 /* Check for bus configuration changes of interest */
2738 /* If it was divisor change, read the new one */
2739 if (set
&& strcmp(name
, "sd_divisor") == 0) {
2740 if (bcmsdh_iovar_op(bus
->sdh
, "sd_divisor", NULL
, 0,
2741 &bus
->sd_divisor
, sizeof(s32
),
2742 false) != BCME_OK
) {
2743 bus
->sd_divisor
= -1;
2744 DHD_ERROR(("%s: fail on %s get\n", __func__
,
2747 DHD_INFO(("%s: noted %s update, value now %d\n",
2748 __func__
, name
, bus
->sd_divisor
));
2751 /* If it was a mode change, read the new one */
2752 if (set
&& strcmp(name
, "sd_mode") == 0) {
2753 if (bcmsdh_iovar_op(bus
->sdh
, "sd_mode", NULL
, 0,
2754 &bus
->sd_mode
, sizeof(s32
),
2755 false) != BCME_OK
) {
2757 DHD_ERROR(("%s: fail on %s get\n", __func__
,
2760 DHD_INFO(("%s: noted %s update, value now %d\n",
2761 __func__
, name
, bus
->sd_mode
));
2764 /* Similar check for blocksize change */
2765 if (set
&& strcmp(name
, "sd_blocksize") == 0) {
2768 (bus
->sdh
, "sd_blocksize", &fnum
, sizeof(s32
),
2769 &bus
->blocksize
, sizeof(s32
),
2770 false) != BCME_OK
) {
2772 DHD_ERROR(("%s: fail on %s get\n", __func__
,
2775 DHD_INFO(("%s: noted %s update, value now %d\n",
2776 __func__
, "sd_blocksize",
2780 bus
->roundup
= min(max_roundup
, bus
->blocksize
);
2782 if ((bus
->idletime
== DHD_IDLE_IMMEDIATE
) && !bus
->dpc_sched
) {
2783 bus
->activity
= false;
2784 dhdsdio_clkctl(bus
, CLK_NONE
, true);
2787 dhd_os_sdunlock(bus
->dhd
);
2791 DHD_CTL(("%s: %s %s, len %d plen %d\n", __func__
,
2792 name
, (set
? "set" : "get"), len
, plen
));
2794 /* set up 'params' pointer in case this is a set command so that
2795 * the convenience int and bool code can be common to set and get
2797 if (params
== NULL
) {
2802 if (vi
->type
== IOVT_VOID
)
2804 else if (vi
->type
== IOVT_BUFFER
)
2807 /* all other types are integer sized */
2808 val_size
= sizeof(int);
2810 actionid
= set
? IOV_SVAL(vi
->varid
) : IOV_GVAL(vi
->varid
);
2812 dhdsdio_doiovar(bus
, vi
, actionid
, name
, params
, plen
, arg
, len
,
2819 void dhd_bus_stop(struct dhd_bus
*bus
, bool enforce_mutex
)
2821 u32 local_hostintmask
;
2826 DHD_TRACE(("%s: Enter\n", __func__
));
2829 dhd_os_sdlock(bus
->dhd
);
2833 /* Enable clock for device interrupts */
2834 dhdsdio_clkctl(bus
, CLK_AVAIL
, false);
2836 /* Disable and clear interrupts at the chip level also */
2837 W_SDREG(0, &bus
->regs
->hostintmask
, retries
);
2838 local_hostintmask
= bus
->hostintmask
;
2839 bus
->hostintmask
= 0;
2841 /* Change our idea of bus state */
2842 bus
->dhd
->busstate
= DHD_BUS_DOWN
;
2844 /* Force clocks on backplane to be sure F2 interrupt propagates */
2846 bcmsdh_cfg_read(bus
->sdh
, SDIO_FUNC_1
, SBSDIO_FUNC1_CHIPCLKCSR
,
2849 bcmsdh_cfg_write(bus
->sdh
, SDIO_FUNC_1
, SBSDIO_FUNC1_CHIPCLKCSR
,
2850 (saveclk
| SBSDIO_FORCE_HT
), &err
);
2853 DHD_ERROR(("%s: Failed to force clock for F2: err %d\n",
2857 /* Turn off the bus (F2), free any pending packets */
2858 DHD_INTR(("%s: disable SDIO interrupts\n", __func__
));
2859 bcmsdh_intr_disable(bus
->sdh
);
2860 bcmsdh_cfg_write(bus
->sdh
, SDIO_FUNC_0
, SDIOD_CCCR_IOEN
,
2861 SDIO_FUNC_ENABLE_1
, NULL
);
2863 /* Clear any pending interrupts now that F2 is disabled */
2864 W_SDREG(local_hostintmask
, &bus
->regs
->intstatus
, retries
);
2866 /* Turn off the backplane clock (only) */
2867 dhdsdio_clkctl(bus
, CLK_SDONLY
, false);
2869 /* Clear the data packet queues */
2870 pktq_flush(&bus
->txq
, true);
2872 /* Clear any held glomming stuff */
2874 pkt_buf_free_skb(bus
->glomd
);
2877 pkt_buf_free_skb(bus
->glom
);
2879 bus
->glom
= bus
->glomd
= NULL
;
2881 /* Clear rx control and wake any waiters */
2883 dhd_os_ioctl_resp_wake(bus
->dhd
);
2885 /* Reset some F2 state stuff */
2886 bus
->rxskip
= false;
2887 bus
->tx_seq
= bus
->rx_seq
= 0;
2890 dhd_os_sdunlock(bus
->dhd
);
2893 int dhd_bus_init(dhd_pub_t
*dhdp
, bool enforce_mutex
)
2895 dhd_bus_t
*bus
= dhdp
->bus
;
2902 DHD_TRACE(("%s: Enter\n", __func__
));
2909 dhd_os_sdlock(bus
->dhd
);
2911 /* Make sure backplane clock is on, needed to generate F2 interrupt */
2912 dhdsdio_clkctl(bus
, CLK_AVAIL
, false);
2913 if (bus
->clkstate
!= CLK_AVAIL
)
2916 /* Force clocks on backplane to be sure F2 interrupt propagates */
2918 bcmsdh_cfg_read(bus
->sdh
, SDIO_FUNC_1
, SBSDIO_FUNC1_CHIPCLKCSR
,
2921 bcmsdh_cfg_write(bus
->sdh
, SDIO_FUNC_1
, SBSDIO_FUNC1_CHIPCLKCSR
,
2922 (saveclk
| SBSDIO_FORCE_HT
), &err
);
2925 DHD_ERROR(("%s: Failed to force clock for F2: err %d\n",
2930 /* Enable function 2 (frame transfers) */
2931 W_SDREG((SDPCM_PROT_VERSION
<< SMB_DATA_VERSION_SHIFT
),
2932 &bus
->regs
->tosbmailboxdata
, retries
);
2933 enable
= (SDIO_FUNC_ENABLE_1
| SDIO_FUNC_ENABLE_2
);
2935 bcmsdh_cfg_write(bus
->sdh
, SDIO_FUNC_0
, SDIOD_CCCR_IOEN
, enable
, NULL
);
2937 /* Give the dongle some time to do its thing and set IOR2 */
2938 dhd_timeout_start(&tmo
, DHD_WAIT_F2RDY
* 1000);
2941 while (ready
!= enable
&& !dhd_timeout_expired(&tmo
))
2943 bcmsdh_cfg_read(bus
->sdh
, SDIO_FUNC_0
, SDIOD_CCCR_IORDY
,
2946 DHD_INFO(("%s: enable 0x%02x, ready 0x%02x (waited %uus)\n",
2947 __func__
, enable
, ready
, tmo
.elapsed
));
2949 /* If F2 successfully enabled, set core and enable interrupts */
2950 if (ready
== enable
) {
2951 /* Make sure we're talking to the core. */
2952 bus
->regs
= si_setcore(bus
->sih
, PCMCIA_CORE_ID
, 0);
2954 bus
->regs
= si_setcore(bus
->sih
, SDIOD_CORE_ID
, 0);
2956 /* Set up the interrupt mask and enable interrupts */
2957 bus
->hostintmask
= HOSTINTMASK
;
2958 W_SDREG(bus
->hostintmask
, &bus
->regs
->hostintmask
, retries
);
2960 bcmsdh_cfg_write(bus
->sdh
, SDIO_FUNC_1
, SBSDIO_WATERMARK
,
2961 (u8
) watermark
, &err
);
2963 /* Set bus state according to enable result */
2964 dhdp
->busstate
= DHD_BUS_DATA
;
2966 /* bcmsdh_intr_unmask(bus->sdh); */
2968 bus
->intdis
= false;
2970 DHD_INTR(("%s: enable SDIO device interrupts\n",
2972 bcmsdh_intr_enable(bus
->sdh
);
2974 DHD_INTR(("%s: disable SDIO interrupts\n", __func__
));
2975 bcmsdh_intr_disable(bus
->sdh
);
2981 /* Disable F2 again */
2982 enable
= SDIO_FUNC_ENABLE_1
;
2983 bcmsdh_cfg_write(bus
->sdh
, SDIO_FUNC_0
, SDIOD_CCCR_IOEN
, enable
,
2987 /* Restore previous clock setting */
2988 bcmsdh_cfg_write(bus
->sdh
, SDIO_FUNC_1
, SBSDIO_FUNC1_CHIPCLKCSR
,
2991 /* If we didn't come up, turn off backplane clock */
2992 if (dhdp
->busstate
!= DHD_BUS_DATA
)
2993 dhdsdio_clkctl(bus
, CLK_NONE
, false);
2997 dhd_os_sdunlock(bus
->dhd
);
3002 static void dhdsdio_rxfail(dhd_bus_t
*bus
, bool abort
, bool rtx
)
3004 bcmsdh_info_t
*sdh
= bus
->sdh
;
3005 sdpcmd_regs_t
*regs
= bus
->regs
;
3011 DHD_ERROR(("%s: %sterminate frame%s\n", __func__
,
3012 (abort
? "abort command, " : ""),
3013 (rtx
? ", send NAK" : "")));
3016 bcmsdh_abort(sdh
, SDIO_FUNC_2
);
3018 bcmsdh_cfg_write(sdh
, SDIO_FUNC_1
, SBSDIO_FUNC1_FRAMECTRL
, SFC_RF_TERM
,
3022 /* Wait until the packet has been flushed (device/FIFO stable) */
3023 for (lastrbc
= retries
= 0xffff; retries
> 0; retries
--) {
3024 hi
= bcmsdh_cfg_read(sdh
, SDIO_FUNC_1
, SBSDIO_FUNC1_RFRAMEBCHI
,
3026 lo
= bcmsdh_cfg_read(sdh
, SDIO_FUNC_1
, SBSDIO_FUNC1_RFRAMEBCLO
,
3028 bus
->f1regdata
+= 2;
3030 if ((hi
== 0) && (lo
== 0))
3033 if ((hi
> (lastrbc
>> 8)) && (lo
> (lastrbc
& 0x00ff))) {
3034 DHD_ERROR(("%s: count growing: last 0x%04x now "
3036 __func__
, lastrbc
, ((hi
<< 8) + lo
)));
3038 lastrbc
= (hi
<< 8) + lo
;
3042 DHD_ERROR(("%s: count never zeroed: last 0x%04x\n",
3043 __func__
, lastrbc
));
3045 DHD_INFO(("%s: flush took %d iterations\n", __func__
,
3046 (0xffff - retries
)));
3051 W_SDREG(SMB_NAK
, ®s
->tosbmailbox
, retries
);
3053 if (retries
<= retry_limit
)
3057 /* Clear partial in any case */
3060 /* If we can't reach the device, signal failure */
3061 if (err
|| bcmsdh_regfail(sdh
))
3062 bus
->dhd
->busstate
= DHD_BUS_DOWN
;
3066 dhdsdio_read_control(dhd_bus_t
*bus
, u8
*hdr
, uint len
, uint doff
)
3068 bcmsdh_info_t
*sdh
= bus
->sdh
;
3073 DHD_TRACE(("%s: Enter\n", __func__
));
3075 /* Control data already received in aligned rxctl */
3076 if ((bus
->bus
== SPI_BUS
) && (!bus
->usebufpool
))
3080 /* Set rxctl for frame (w/optional alignment) */
3081 bus
->rxctl
= bus
->rxbuf
;
3083 bus
->rxctl
+= firstread
;
3084 pad
= ((unsigned long)bus
->rxctl
% DHD_SDALIGN
);
3086 bus
->rxctl
+= (DHD_SDALIGN
- pad
);
3087 bus
->rxctl
-= firstread
;
3089 ASSERT(bus
->rxctl
>= bus
->rxbuf
);
3091 /* Copy the already-read portion over */
3092 memcpy(bus
->rxctl
, hdr
, firstread
);
3093 if (len
<= firstread
)
3096 /* Copy the full data pkt in gSPI case and process ioctl. */
3097 if (bus
->bus
== SPI_BUS
) {
3098 memcpy(bus
->rxctl
, hdr
, len
);
3102 /* Raise rdlen to next SDIO block to avoid tail command */
3103 rdlen
= len
- firstread
;
3104 if (bus
->roundup
&& bus
->blocksize
&& (rdlen
> bus
->blocksize
)) {
3105 pad
= bus
->blocksize
- (rdlen
% bus
->blocksize
);
3106 if ((pad
<= bus
->roundup
) && (pad
< bus
->blocksize
) &&
3107 ((len
+ pad
) < bus
->dhd
->maxctl
))
3109 } else if (rdlen
% DHD_SDALIGN
) {
3110 rdlen
+= DHD_SDALIGN
- (rdlen
% DHD_SDALIGN
);
3113 /* Satisfy length-alignment requirements */
3114 if (forcealign
&& (rdlen
& (ALIGNMENT
- 1)))
3115 rdlen
= roundup(rdlen
, ALIGNMENT
);
3117 /* Drop if the read is too big or it exceeds our maximum */
3118 if ((rdlen
+ firstread
) > bus
->dhd
->maxctl
) {
3119 DHD_ERROR(("%s: %d-byte control read exceeds %d-byte buffer\n",
3120 __func__
, rdlen
, bus
->dhd
->maxctl
));
3121 bus
->dhd
->rx_errors
++;
3122 dhdsdio_rxfail(bus
, false, false);
3126 if ((len
- doff
) > bus
->dhd
->maxctl
) {
3127 DHD_ERROR(("%s: %d-byte ctl frame (%d-byte ctl data) exceeds "
3129 __func__
, len
, (len
- doff
), bus
->dhd
->maxctl
));
3130 bus
->dhd
->rx_errors
++;
3132 dhdsdio_rxfail(bus
, false, false);
3136 /* Read remainder of frame body into the rxctl buffer */
3138 dhd_bcmsdh_recv_buf(bus
, bcmsdh_cur_sbwad(sdh
), SDIO_FUNC_2
, F2SYNC
,
3139 (bus
->rxctl
+ firstread
), rdlen
, NULL
, NULL
,
3142 ASSERT(sdret
!= BCME_PENDING
);
3144 /* Control frame failures need retransmission */
3146 DHD_ERROR(("%s: read %d control bytes failed: %d\n",
3147 __func__
, rdlen
, sdret
));
3148 bus
->rxc_errors
++; /* dhd.rx_ctlerrs is higher level */
3149 dhdsdio_rxfail(bus
, true, true);
3156 if (DHD_BYTES_ON() && DHD_CTL_ON())
3157 prhex("RxCtrl", bus
->rxctl
, len
);
3160 /* Point to valid data and indicate its length */
3162 bus
->rxlen
= len
- doff
;
3165 /* Awake any waiters */
3166 dhd_os_ioctl_resp_wake(bus
->dhd
);
3169 static u8
dhdsdio_rxglom(dhd_bus_t
*bus
, u8 rxseq
)
3175 struct sk_buff
*pfirst
, *plast
, *pnext
, *save_pfirst
;
3178 u8 chan
, seq
, doff
, sfdoff
;
3182 bool usechain
= bus
->use_rxchain
;
3184 /* If packets, issue read(s) and send up packet chain */
3185 /* Return sequence numbers consumed? */
3187 DHD_TRACE(("dhdsdio_rxglom: start: glomd %p glom %p\n", bus
->glomd
,
3190 /* If there's a descriptor, generate the packet chain */
3192 dhd_os_sdlock_rxq(bus
->dhd
);
3194 pfirst
= plast
= pnext
= NULL
;
3195 dlen
= (u16
) (bus
->glomd
->len
);
3196 dptr
= bus
->glomd
->data
;
3197 if (!dlen
|| (dlen
& 1)) {
3198 DHD_ERROR(("%s: bad glomd len(%d), ignore descriptor\n",
3203 for (totlen
= num
= 0; dlen
; num
++) {
3204 /* Get (and move past) next length */
3205 sublen
= get_unaligned_le16(dptr
);
3206 dlen
-= sizeof(u16
);
3207 dptr
+= sizeof(u16
);
3208 if ((sublen
< SDPCM_HDRLEN
) ||
3209 ((num
== 0) && (sublen
< (2 * SDPCM_HDRLEN
)))) {
3210 DHD_ERROR(("%s: descriptor len %d bad: %d\n",
3211 __func__
, num
, sublen
));
3215 if (sublen
% DHD_SDALIGN
) {
3216 DHD_ERROR(("%s: sublen %d not multiple of %d\n",
3217 __func__
, sublen
, DHD_SDALIGN
));
3222 /* For last frame, adjust read len so total
3223 is a block multiple */
3226 (roundup(totlen
, bus
->blocksize
) - totlen
);
3227 totlen
= roundup(totlen
, bus
->blocksize
);
3230 /* Allocate/chain packet for next subframe */
3231 pnext
= pkt_buf_get_skb(sublen
+ DHD_SDALIGN
);
3232 if (pnext
== NULL
) {
3233 DHD_ERROR(("%s: pkt_buf_get_skb failed, num %d len %d\n",
3234 __func__
, num
, sublen
));
3237 ASSERT(!(pnext
->prev
));
3240 pfirst
= plast
= pnext
;
3243 plast
->next
= pnext
;
3247 /* Adhere to start alignment requirements */
3248 PKTALIGN(pnext
, sublen
, DHD_SDALIGN
);
3251 /* If all allocations succeeded, save packet chain
3254 DHD_GLOM(("%s: allocated %d-byte packet chain for %d "
3255 "subframes\n", __func__
, totlen
, num
));
3256 if (DHD_GLOM_ON() && bus
->nextlen
) {
3257 if (totlen
!= bus
->nextlen
) {
3258 DHD_GLOM(("%s: glomdesc mismatch: nextlen %d glomdesc %d " "rxseq %d\n",
3259 __func__
, bus
->nextlen
,
3264 pfirst
= pnext
= NULL
;
3267 pkt_buf_free_skb(pfirst
);
3272 /* Done with descriptor packet */
3273 pkt_buf_free_skb(bus
->glomd
);
3277 dhd_os_sdunlock_rxq(bus
->dhd
);
3280 /* Ok -- either we just generated a packet chain,
3281 or had one from before */
3283 if (DHD_GLOM_ON()) {
3284 DHD_GLOM(("%s: try superframe read, packet chain:\n",
3286 for (pnext
= bus
->glom
; pnext
; pnext
= pnext
->next
) {
3287 DHD_GLOM((" %p: %p len 0x%04x (%d)\n",
3288 pnext
, (u8
*) (pnext
->data
),
3289 pnext
->len
, pnext
->len
));
3294 dlen
= (u16
) pkttotlen(pfirst
);
3296 /* Do an SDIO read for the superframe. Configurable iovar to
3297 * read directly into the chained packet, or allocate a large
3298 * packet and and copy into the chain.
3301 errcode
= dhd_bcmsdh_recv_buf(bus
,
3303 (bus
->sdh
), SDIO_FUNC_2
,
3305 (u8
*) pfirst
->data
,
3306 dlen
, pfirst
, NULL
, NULL
);
3307 } else if (bus
->dataptr
) {
3308 errcode
= dhd_bcmsdh_recv_buf(bus
,
3310 (bus
->sdh
), SDIO_FUNC_2
,
3311 F2SYNC
, bus
->dataptr
,
3312 dlen
, NULL
, NULL
, NULL
);
3314 (u16
) pktfrombuf(pfirst
, 0, dlen
,
3316 if (sublen
!= dlen
) {
3317 DHD_ERROR(("%s: FAILED TO COPY, dlen %d sublen %d\n",
3318 __func__
, dlen
, sublen
));
3323 DHD_ERROR(("COULDN'T ALLOC %d-BYTE GLOM, FORCE FAILURE\n",
3328 ASSERT(errcode
!= BCME_PENDING
);
3330 /* On failure, kill the superframe, allow a couple retries */
3332 DHD_ERROR(("%s: glom read of %d bytes failed: %d\n",
3333 __func__
, dlen
, errcode
));
3334 bus
->dhd
->rx_errors
++;
3336 if (bus
->glomerr
++ < 3) {
3337 dhdsdio_rxfail(bus
, true, true);
3340 dhdsdio_rxfail(bus
, true, false);
3341 dhd_os_sdlock_rxq(bus
->dhd
);
3342 pkt_buf_free_skb(bus
->glom
);
3343 dhd_os_sdunlock_rxq(bus
->dhd
);
3350 if (DHD_GLOM_ON()) {
3351 prhex("SUPERFRAME", pfirst
->data
,
3352 min_t(int, pfirst
->len
, 48));
3356 /* Validate the superframe header */
3357 dptr
= (u8
*) (pfirst
->data
);
3358 sublen
= get_unaligned_le16(dptr
);
3359 check
= get_unaligned_le16(dptr
+ sizeof(u16
));
3361 chan
= SDPCM_PACKET_CHANNEL(&dptr
[SDPCM_FRAMETAG_LEN
]);
3362 seq
= SDPCM_PACKET_SEQUENCE(&dptr
[SDPCM_FRAMETAG_LEN
]);
3363 bus
->nextlen
= dptr
[SDPCM_FRAMETAG_LEN
+ SDPCM_NEXTLEN_OFFSET
];
3364 if ((bus
->nextlen
<< 4) > MAX_RX_DATASZ
) {
3365 DHD_INFO(("%s: nextlen too large (%d) seq %d\n",
3366 __func__
, bus
->nextlen
, seq
));
3369 doff
= SDPCM_DOFFSET_VALUE(&dptr
[SDPCM_FRAMETAG_LEN
]);
3370 txmax
= SDPCM_WINDOW_VALUE(&dptr
[SDPCM_FRAMETAG_LEN
]);
3373 if ((u16
)~(sublen
^ check
)) {
3374 DHD_ERROR(("%s (superframe): HW hdr error: len/check "
3375 "0x%04x/0x%04x\n", __func__
, sublen
, check
));
3377 } else if (roundup(sublen
, bus
->blocksize
) != dlen
) {
3378 DHD_ERROR(("%s (superframe): len 0x%04x, rounded "
3379 "0x%04x, expect 0x%04x\n",
3381 roundup(sublen
, bus
->blocksize
), dlen
));
3383 } else if (SDPCM_PACKET_CHANNEL(&dptr
[SDPCM_FRAMETAG_LEN
]) !=
3384 SDPCM_GLOM_CHANNEL
) {
3385 DHD_ERROR(("%s (superframe): bad channel %d\n",
3387 SDPCM_PACKET_CHANNEL(&dptr
3388 [SDPCM_FRAMETAG_LEN
])));
3390 } else if (SDPCM_GLOMDESC(&dptr
[SDPCM_FRAMETAG_LEN
])) {
3391 DHD_ERROR(("%s (superframe): got second descriptor?\n",
3394 } else if ((doff
< SDPCM_HDRLEN
) ||
3395 (doff
> (pfirst
->len
- SDPCM_HDRLEN
))) {
3396 DHD_ERROR(("%s (superframe): Bad data offset %d: HW %d "
3398 __func__
, doff
, sublen
,
3399 pfirst
->len
, SDPCM_HDRLEN
));
3403 /* Check sequence number of superframe SW header */
3405 DHD_INFO(("%s: (superframe) rx_seq %d, expected %d\n",
3406 __func__
, seq
, rxseq
));
3411 /* Check window for sanity */
3412 if ((u8
) (txmax
- bus
->tx_seq
) > 0x40) {
3413 DHD_ERROR(("%s: unlikely tx max %d with tx_seq %d\n",
3414 __func__
, txmax
, bus
->tx_seq
));
3415 txmax
= bus
->tx_seq
+ 2;
3417 bus
->tx_max
= txmax
;
3419 /* Remove superframe header, remember offset */
3420 skb_pull(pfirst
, doff
);
3423 /* Validate all the subframe headers */
3424 for (num
= 0, pnext
= pfirst
; pnext
&& !errcode
;
3425 num
++, pnext
= pnext
->next
) {
3426 dptr
= (u8
*) (pnext
->data
);
3427 dlen
= (u16
) (pnext
->len
);
3428 sublen
= get_unaligned_le16(dptr
);
3429 check
= get_unaligned_le16(dptr
+ sizeof(u16
));
3430 chan
= SDPCM_PACKET_CHANNEL(&dptr
[SDPCM_FRAMETAG_LEN
]);
3431 doff
= SDPCM_DOFFSET_VALUE(&dptr
[SDPCM_FRAMETAG_LEN
]);
3434 prhex("subframe", dptr
, 32);
3437 if ((u16
)~(sublen
^ check
)) {
3438 DHD_ERROR(("%s (subframe %d): HW hdr error: "
3439 "len/check 0x%04x/0x%04x\n",
3440 __func__
, num
, sublen
, check
));
3442 } else if ((sublen
> dlen
) || (sublen
< SDPCM_HDRLEN
)) {
3443 DHD_ERROR(("%s (subframe %d): length mismatch: "
3444 "len 0x%04x, expect 0x%04x\n",
3445 __func__
, num
, sublen
, dlen
));
3447 } else if ((chan
!= SDPCM_DATA_CHANNEL
) &&
3448 (chan
!= SDPCM_EVENT_CHANNEL
)) {
3449 DHD_ERROR(("%s (subframe %d): bad channel %d\n",
3450 __func__
, num
, chan
));
3452 } else if ((doff
< SDPCM_HDRLEN
) || (doff
> sublen
)) {
3453 DHD_ERROR(("%s (subframe %d): Bad data offset %d: HW %d min %d\n",
3454 __func__
, num
, doff
, sublen
,
3461 /* Terminate frame on error, request
3463 if (bus
->glomerr
++ < 3) {
3464 /* Restore superframe header space */
3465 skb_push(pfirst
, sfdoff
);
3466 dhdsdio_rxfail(bus
, true, true);
3469 dhdsdio_rxfail(bus
, true, false);
3470 dhd_os_sdlock_rxq(bus
->dhd
);
3471 pkt_buf_free_skb(bus
->glom
);
3472 dhd_os_sdunlock_rxq(bus
->dhd
);
3480 /* Basic SD framing looks ok - process each packet (header) */
3481 save_pfirst
= pfirst
;
3485 dhd_os_sdlock_rxq(bus
->dhd
);
3486 for (num
= 0; pfirst
; rxseq
++, pfirst
= pnext
) {
3487 pnext
= pfirst
->next
;
3488 pfirst
->next
= NULL
;
3490 dptr
= (u8
*) (pfirst
->data
);
3491 sublen
= get_unaligned_le16(dptr
);
3492 chan
= SDPCM_PACKET_CHANNEL(&dptr
[SDPCM_FRAMETAG_LEN
]);
3493 seq
= SDPCM_PACKET_SEQUENCE(&dptr
[SDPCM_FRAMETAG_LEN
]);
3494 doff
= SDPCM_DOFFSET_VALUE(&dptr
[SDPCM_FRAMETAG_LEN
]);
3496 DHD_GLOM(("%s: Get subframe %d, %p(%p/%d), sublen %d "
3498 __func__
, num
, pfirst
, pfirst
->data
,
3499 pfirst
->len
, sublen
, chan
, seq
));
3501 ASSERT((chan
== SDPCM_DATA_CHANNEL
)
3502 || (chan
== SDPCM_EVENT_CHANNEL
));
3505 DHD_GLOM(("%s: rx_seq %d, expected %d\n",
3506 __func__
, seq
, rxseq
));
3511 if (DHD_BYTES_ON() && DHD_DATA_ON())
3512 prhex("Rx Subframe Data", dptr
, dlen
);
3515 __skb_trim(pfirst
, sublen
);
3516 skb_pull(pfirst
, doff
);
3518 if (pfirst
->len
== 0) {
3519 pkt_buf_free_skb(pfirst
);
3521 plast
->next
= pnext
;
3523 ASSERT(save_pfirst
== pfirst
);
3524 save_pfirst
= pnext
;
3527 } else if (dhd_prot_hdrpull(bus
->dhd
, &ifidx
, pfirst
) !=
3529 DHD_ERROR(("%s: rx protocol error\n",
3531 bus
->dhd
->rx_errors
++;
3532 pkt_buf_free_skb(pfirst
);
3534 plast
->next
= pnext
;
3536 ASSERT(save_pfirst
== pfirst
);
3537 save_pfirst
= pnext
;
3542 /* this packet will go up, link back into
3543 chain and count it */
3544 pfirst
->next
= pnext
;
3549 if (DHD_GLOM_ON()) {
3550 DHD_GLOM(("%s subframe %d to stack, %p(%p/%d) "
3552 __func__
, num
, pfirst
, pfirst
->data
,
3553 pfirst
->len
, pfirst
->next
,
3555 prhex("", (u8
*) pfirst
->data
,
3556 min_t(int, pfirst
->len
, 32));
3558 #endif /* DHD_DEBUG */
3560 dhd_os_sdunlock_rxq(bus
->dhd
);
3562 dhd_os_sdunlock(bus
->dhd
);
3563 dhd_rx_frame(bus
->dhd
, ifidx
, save_pfirst
, num
);
3564 dhd_os_sdlock(bus
->dhd
);
3567 bus
->rxglomframes
++;
3568 bus
->rxglompkts
+= num
;
3573 /* Return true if there may be more frames to read */
3574 static uint
dhdsdio_readframes(dhd_bus_t
*bus
, uint maxframes
, bool *finished
)
3576 bcmsdh_info_t
*sdh
= bus
->sdh
;
3578 u16 len
, check
; /* Extracted hardware header fields */
3579 u8 chan
, seq
, doff
; /* Extracted software header fields */
3580 u8 fcbits
; /* Extracted fcbits from software header */
3583 struct sk_buff
*pkt
; /* Packet for event or data frames */
3584 u16 pad
; /* Number of pad bytes to read */
3585 u16 rdlen
; /* Total number of bytes to read */
3586 u8 rxseq
; /* Next sequence number to expect */
3587 uint rxleft
= 0; /* Remaining number of frames allowed */
3588 int sdret
; /* Return code from bcmsdh calls */
3589 u8 txmax
; /* Maximum tx sequence offered */
3590 bool len_consistent
; /* Result of comparing readahead len and
3594 uint rxcount
= 0; /* Total frames read */
3596 #if defined(DHD_DEBUG) || defined(SDTEST)
3597 bool sdtest
= false; /* To limit message spew from test mode */
3600 DHD_TRACE(("%s: Enter\n", __func__
));
3605 /* Allow pktgen to override maxframes */
3606 if (bus
->pktgen_count
&& (bus
->pktgen_mode
== DHD_PKTGEN_RECV
)) {
3607 maxframes
= bus
->pktgen_count
;
3612 /* Not finished unless we encounter no more frames indication */
3615 for (rxseq
= bus
->rx_seq
, rxleft
= maxframes
;
3616 !bus
->rxskip
&& rxleft
&& bus
->dhd
->busstate
!= DHD_BUS_DOWN
;
3617 rxseq
++, rxleft
--) {
3619 /* Handle glomming separately */
3620 if (bus
->glom
|| bus
->glomd
) {
3622 DHD_GLOM(("%s: calling rxglom: glomd %p, glom %p\n",
3623 __func__
, bus
->glomd
, bus
->glom
));
3624 cnt
= dhdsdio_rxglom(bus
, rxseq
);
3625 DHD_GLOM(("%s: rxglom returned %d\n", __func__
, cnt
));
3627 rxleft
= (rxleft
> cnt
) ? (rxleft
- cnt
) : 1;
3631 /* Try doing single read if we can */
3632 if (dhd_readahead
&& bus
->nextlen
) {
3633 u16 nextlen
= bus
->nextlen
;
3636 if (bus
->bus
== SPI_BUS
) {
3637 rdlen
= len
= nextlen
;
3639 rdlen
= len
= nextlen
<< 4;
3641 /* Pad read to blocksize for efficiency */
3642 if (bus
->roundup
&& bus
->blocksize
3643 && (rdlen
> bus
->blocksize
)) {
3646 (rdlen
% bus
->blocksize
);
3647 if ((pad
<= bus
->roundup
)
3648 && (pad
< bus
->blocksize
)
3649 && ((rdlen
+ pad
+ firstread
) <
3652 } else if (rdlen
% DHD_SDALIGN
) {
3654 DHD_SDALIGN
- (rdlen
% DHD_SDALIGN
);
3658 /* We use bus->rxctl buffer in WinXP for initial
3659 * control pkt receives.
3660 * Later we use buffer-poll for data as well
3661 * as control packets.
3662 * This is required because dhd receives full
3663 * frame in gSPI unlike SDIO.
3664 * After the frame is received we have to
3665 * distinguish whether it is data
3666 * or non-data frame.
3668 /* Allocate a packet buffer */
3669 dhd_os_sdlock_rxq(bus
->dhd
);
3670 pkt
= pkt_buf_get_skb(rdlen
+ DHD_SDALIGN
);
3672 if (bus
->bus
== SPI_BUS
) {
3673 bus
->usebufpool
= false;
3674 bus
->rxctl
= bus
->rxbuf
;
3676 bus
->rxctl
+= firstread
;
3677 pad
= ((unsigned long)bus
->rxctl
%
3681 (DHD_SDALIGN
- pad
);
3682 bus
->rxctl
-= firstread
;
3684 ASSERT(bus
->rxctl
>= bus
->rxbuf
);
3686 /* Read the entire frame */
3687 sdret
= dhd_bcmsdh_recv_buf(bus
,
3696 ASSERT(sdret
!= BCME_PENDING
);
3698 /* Control frame failures need
3701 DHD_ERROR(("%s: read %d control bytes failed: %d\n",
3704 /* dhd.rx_ctlerrs is higher */
3706 dhd_os_sdunlock_rxq(bus
->dhd
);
3707 dhdsdio_rxfail(bus
, true,
3715 request rtx of events */
3716 DHD_ERROR(("%s (nextlen): pkt_buf_get_skb failed: len %d rdlen %d " "expected rxseq %d\n",
3717 __func__
, len
, rdlen
, rxseq
));
3718 /* Just go try again w/normal
3720 dhd_os_sdunlock_rxq(bus
->dhd
);
3724 if (bus
->bus
== SPI_BUS
)
3725 bus
->usebufpool
= true;
3727 ASSERT(!(pkt
->prev
));
3728 PKTALIGN(pkt
, rdlen
, DHD_SDALIGN
);
3729 rxbuf
= (u8
*) (pkt
->data
);
3730 /* Read the entire frame */
3732 dhd_bcmsdh_recv_buf(bus
,
3733 bcmsdh_cur_sbwad(sdh
),
3734 SDIO_FUNC_2
, F2SYNC
,
3735 rxbuf
, rdlen
, pkt
, NULL
,
3738 ASSERT(sdret
!= BCME_PENDING
);
3741 DHD_ERROR(("%s (nextlen): read %d bytes failed: %d\n",
3742 __func__
, rdlen
, sdret
));
3743 pkt_buf_free_skb(pkt
);
3744 bus
->dhd
->rx_errors
++;
3745 dhd_os_sdunlock_rxq(bus
->dhd
);
3746 /* Force retry w/normal header read.
3747 * Don't attempt NAK for
3750 dhdsdio_rxfail(bus
, true,
3757 dhd_os_sdunlock_rxq(bus
->dhd
);
3759 /* Now check the header */
3760 memcpy(bus
->rxhdr
, rxbuf
, SDPCM_HDRLEN
);
3762 /* Extract hardware header fields */
3763 len
= get_unaligned_le16(bus
->rxhdr
);
3764 check
= get_unaligned_le16(bus
->rxhdr
+ sizeof(u16
));
3766 /* All zeros means readahead info was bad */
3767 if (!(len
| check
)) {
3768 DHD_INFO(("%s (nextlen): read zeros in HW "
3769 "header???\n", __func__
));
3770 dhd_os_sdlock_rxq(bus
->dhd
);
3772 dhd_os_sdunlock_rxq(bus
->dhd
);
3773 GSPI_PR55150_BAILOUT
;
3777 /* Validate check bytes */
3778 if ((u16
)~(len
^ check
)) {
3779 DHD_ERROR(("%s (nextlen): HW hdr error: nextlen/len/check" " 0x%04x/0x%04x/0x%04x\n",
3780 __func__
, nextlen
, len
, check
));
3781 dhd_os_sdlock_rxq(bus
->dhd
);
3783 dhd_os_sdunlock_rxq(bus
->dhd
);
3785 dhdsdio_rxfail(bus
, false, false);
3786 GSPI_PR55150_BAILOUT
;
3790 /* Validate frame length */
3791 if (len
< SDPCM_HDRLEN
) {
3792 DHD_ERROR(("%s (nextlen): HW hdr length "
3793 "invalid: %d\n", __func__
, len
));
3794 dhd_os_sdlock_rxq(bus
->dhd
);
3796 dhd_os_sdunlock_rxq(bus
->dhd
);
3797 GSPI_PR55150_BAILOUT
;
3801 /* Check for consistency withreadahead info */
3802 len_consistent
= (nextlen
!= (roundup(len
, 16) >> 4));
3803 if (len_consistent
) {
3804 /* Mismatch, force retry w/normal
3805 header (may be >4K) */
3806 DHD_ERROR(("%s (nextlen): mismatch, nextlen %d len %d rnd %d; " "expected rxseq %d\n",
3808 len
, roundup(len
, 16), rxseq
));
3809 dhd_os_sdlock_rxq(bus
->dhd
);
3811 dhd_os_sdunlock_rxq(bus
->dhd
);
3812 dhdsdio_rxfail(bus
, true,
3814 SPI_BUS
) ? false : true);
3815 GSPI_PR55150_BAILOUT
;
3819 /* Extract software header fields */
3821 SDPCM_PACKET_CHANNEL(&bus
->rxhdr
3822 [SDPCM_FRAMETAG_LEN
]);
3824 SDPCM_PACKET_SEQUENCE(&bus
->rxhdr
3825 [SDPCM_FRAMETAG_LEN
]);
3827 SDPCM_DOFFSET_VALUE(&bus
->rxhdr
3828 [SDPCM_FRAMETAG_LEN
]);
3830 SDPCM_WINDOW_VALUE(&bus
->rxhdr
[SDPCM_FRAMETAG_LEN
]);
3833 bus
->rxhdr
[SDPCM_FRAMETAG_LEN
+
3834 SDPCM_NEXTLEN_OFFSET
];
3835 if ((bus
->nextlen
<< 4) > MAX_RX_DATASZ
) {
3836 DHD_INFO(("%s (nextlen): got frame w/nextlen too large" " (%d), seq %d\n",
3837 __func__
, bus
->nextlen
, seq
));
3841 bus
->dhd
->rx_readahead_cnt
++;
3842 /* Handle Flow Control */
3844 SDPCM_FCMASK_VALUE(&bus
->rxhdr
[SDPCM_FRAMETAG_LEN
]);
3847 if (~bus
->flowcontrol
& fcbits
) {
3851 if (bus
->flowcontrol
& ~fcbits
) {
3858 bus
->flowcontrol
= fcbits
;
3861 /* Check and update sequence number */
3863 DHD_INFO(("%s (nextlen): rx_seq %d, expected "
3864 "%d\n", __func__
, seq
, rxseq
));
3869 /* Check window for sanity */
3870 if ((u8
) (txmax
- bus
->tx_seq
) > 0x40) {
3871 DHD_ERROR(("%s: got unlikely tx max %d with "
3873 __func__
, txmax
, bus
->tx_seq
));
3874 txmax
= bus
->tx_seq
+ 2;
3876 bus
->tx_max
= txmax
;
3879 if (DHD_BYTES_ON() && DHD_DATA_ON())
3880 prhex("Rx Data", rxbuf
, len
);
3881 else if (DHD_HDRS_ON())
3882 prhex("RxHdr", bus
->rxhdr
, SDPCM_HDRLEN
);
3885 if (chan
== SDPCM_CONTROL_CHANNEL
) {
3886 if (bus
->bus
== SPI_BUS
) {
3887 dhdsdio_read_control(bus
, rxbuf
, len
,
3889 if (bus
->usebufpool
) {
3890 dhd_os_sdlock_rxq(bus
->dhd
);
3891 pkt_buf_free_skb(pkt
);
3892 dhd_os_sdunlock_rxq(bus
->dhd
);
3896 DHD_ERROR(("%s (nextlen): readahead on control" " packet %d?\n",
3898 /* Force retry w/normal header read */
3900 dhdsdio_rxfail(bus
, false, true);
3901 dhd_os_sdlock_rxq(bus
->dhd
);
3903 dhd_os_sdunlock_rxq(bus
->dhd
);
3908 if ((bus
->bus
== SPI_BUS
) && !bus
->usebufpool
) {
3909 DHD_ERROR(("Received %d bytes on %d channel. Running out of " "rx pktbuf's or not yet malloced.\n",
3914 /* Validate data offset */
3915 if ((doff
< SDPCM_HDRLEN
) || (doff
> len
)) {
3916 DHD_ERROR(("%s (nextlen): bad data offset %d: HW len %d min %d\n",
3917 __func__
, doff
, len
, SDPCM_HDRLEN
));
3918 dhd_os_sdlock_rxq(bus
->dhd
);
3920 dhd_os_sdunlock_rxq(bus
->dhd
);
3922 dhdsdio_rxfail(bus
, false, false);
3926 /* All done with this one -- now deliver the packet */
3929 /* gSPI frames should not be handled in fractions */
3930 if (bus
->bus
== SPI_BUS
)
3933 /* Read frame header (hardware and software) */
3935 dhd_bcmsdh_recv_buf(bus
, bcmsdh_cur_sbwad(sdh
), SDIO_FUNC_2
,
3936 F2SYNC
, bus
->rxhdr
, firstread
, NULL
,
3939 ASSERT(sdret
!= BCME_PENDING
);
3942 DHD_ERROR(("%s: RXHEADER FAILED: %d\n", __func__
,
3945 dhdsdio_rxfail(bus
, true, true);
3949 if (DHD_BYTES_ON() || DHD_HDRS_ON())
3950 prhex("RxHdr", bus
->rxhdr
, SDPCM_HDRLEN
);
3953 /* Extract hardware header fields */
3954 len
= get_unaligned_le16(bus
->rxhdr
);
3955 check
= get_unaligned_le16(bus
->rxhdr
+ sizeof(u16
));
3957 /* All zeros means no more frames */
3958 if (!(len
| check
)) {
3963 /* Validate check bytes */
3964 if ((u16
) ~(len
^ check
)) {
3965 DHD_ERROR(("%s: HW hdr err: len/check 0x%04x/0x%04x\n",
3966 __func__
, len
, check
));
3968 dhdsdio_rxfail(bus
, false, false);
3972 /* Validate frame length */
3973 if (len
< SDPCM_HDRLEN
) {
3974 DHD_ERROR(("%s: HW hdr length invalid: %d\n",
3979 /* Extract software header fields */
3980 chan
= SDPCM_PACKET_CHANNEL(&bus
->rxhdr
[SDPCM_FRAMETAG_LEN
]);
3981 seq
= SDPCM_PACKET_SEQUENCE(&bus
->rxhdr
[SDPCM_FRAMETAG_LEN
]);
3982 doff
= SDPCM_DOFFSET_VALUE(&bus
->rxhdr
[SDPCM_FRAMETAG_LEN
]);
3983 txmax
= SDPCM_WINDOW_VALUE(&bus
->rxhdr
[SDPCM_FRAMETAG_LEN
]);
3985 /* Validate data offset */
3986 if ((doff
< SDPCM_HDRLEN
) || (doff
> len
)) {
3987 DHD_ERROR(("%s: Bad data offset %d: HW len %d, min %d "
3989 __func__
, doff
, len
, SDPCM_HDRLEN
, seq
));
3992 dhdsdio_rxfail(bus
, false, false);
3996 /* Save the readahead length if there is one */
3998 bus
->rxhdr
[SDPCM_FRAMETAG_LEN
+ SDPCM_NEXTLEN_OFFSET
];
3999 if ((bus
->nextlen
<< 4) > MAX_RX_DATASZ
) {
4000 DHD_INFO(("%s (nextlen): got frame w/nextlen too large "
4002 __func__
, bus
->nextlen
, seq
));
4006 /* Handle Flow Control */
4007 fcbits
= SDPCM_FCMASK_VALUE(&bus
->rxhdr
[SDPCM_FRAMETAG_LEN
]);
4010 if (~bus
->flowcontrol
& fcbits
) {
4014 if (bus
->flowcontrol
& ~fcbits
) {
4021 bus
->flowcontrol
= fcbits
;
4024 /* Check and update sequence number */
4026 DHD_INFO(("%s: rx_seq %d, expected %d\n", __func__
,
4032 /* Check window for sanity */
4033 if ((u8
) (txmax
- bus
->tx_seq
) > 0x40) {
4034 DHD_ERROR(("%s: unlikely tx max %d with tx_seq %d\n",
4035 __func__
, txmax
, bus
->tx_seq
));
4036 txmax
= bus
->tx_seq
+ 2;
4038 bus
->tx_max
= txmax
;
4040 /* Call a separate function for control frames */
4041 if (chan
== SDPCM_CONTROL_CHANNEL
) {
4042 dhdsdio_read_control(bus
, bus
->rxhdr
, len
, doff
);
4046 ASSERT((chan
== SDPCM_DATA_CHANNEL
)
4047 || (chan
== SDPCM_EVENT_CHANNEL
)
4048 || (chan
== SDPCM_TEST_CHANNEL
)
4049 || (chan
== SDPCM_GLOM_CHANNEL
));
4051 /* Length to read */
4052 rdlen
= (len
> firstread
) ? (len
- firstread
) : 0;
4054 /* May pad read to blocksize for efficiency */
4055 if (bus
->roundup
&& bus
->blocksize
&&
4056 (rdlen
> bus
->blocksize
)) {
4057 pad
= bus
->blocksize
- (rdlen
% bus
->blocksize
);
4058 if ((pad
<= bus
->roundup
) && (pad
< bus
->blocksize
) &&
4059 ((rdlen
+ pad
+ firstread
) < MAX_RX_DATASZ
))
4061 } else if (rdlen
% DHD_SDALIGN
) {
4062 rdlen
+= DHD_SDALIGN
- (rdlen
% DHD_SDALIGN
);
4065 /* Satisfy length-alignment requirements */
4066 if (forcealign
&& (rdlen
& (ALIGNMENT
- 1)))
4067 rdlen
= roundup(rdlen
, ALIGNMENT
);
4069 if ((rdlen
+ firstread
) > MAX_RX_DATASZ
) {
4070 /* Too long -- skip this frame */
4071 DHD_ERROR(("%s: too long: len %d rdlen %d\n",
4072 __func__
, len
, rdlen
));
4073 bus
->dhd
->rx_errors
++;
4075 dhdsdio_rxfail(bus
, false, false);
4079 dhd_os_sdlock_rxq(bus
->dhd
);
4080 pkt
= pkt_buf_get_skb(rdlen
+ firstread
+ DHD_SDALIGN
);
4082 /* Give up on data, request rtx of events */
4083 DHD_ERROR(("%s: pkt_buf_get_skb failed: rdlen %d chan %d\n",
4084 __func__
, rdlen
, chan
));
4085 bus
->dhd
->rx_dropped
++;
4086 dhd_os_sdunlock_rxq(bus
->dhd
);
4087 dhdsdio_rxfail(bus
, false, RETRYCHAN(chan
));
4090 dhd_os_sdunlock_rxq(bus
->dhd
);
4092 ASSERT(!(pkt
->prev
));
4094 /* Leave room for what we already read, and align remainder */
4095 ASSERT(firstread
< pkt
->len
);
4096 skb_pull(pkt
, firstread
);
4097 PKTALIGN(pkt
, rdlen
, DHD_SDALIGN
);
4099 /* Read the remaining frame data */
4101 dhd_bcmsdh_recv_buf(bus
, bcmsdh_cur_sbwad(sdh
), SDIO_FUNC_2
,
4102 F2SYNC
, ((u8
*) (pkt
->data
)), rdlen
,
4105 ASSERT(sdret
!= BCME_PENDING
);
4108 DHD_ERROR(("%s: read %d %s bytes failed: %d\n",
4111 SDPCM_EVENT_CHANNEL
) ? "event" : ((chan
==
4113 ? "data" : "test")),
4115 dhd_os_sdlock_rxq(bus
->dhd
);
4116 pkt_buf_free_skb(pkt
);
4117 dhd_os_sdunlock_rxq(bus
->dhd
);
4118 bus
->dhd
->rx_errors
++;
4119 dhdsdio_rxfail(bus
, true, RETRYCHAN(chan
));
4123 /* Copy the already-read portion */
4124 skb_push(pkt
, firstread
);
4125 memcpy(pkt
->data
, bus
->rxhdr
, firstread
);
4128 if (DHD_BYTES_ON() && DHD_DATA_ON())
4129 prhex("Rx Data", pkt
->data
, len
);
4133 /* Save superframe descriptor and allocate packet frame */
4134 if (chan
== SDPCM_GLOM_CHANNEL
) {
4135 if (SDPCM_GLOMDESC(&bus
->rxhdr
[SDPCM_FRAMETAG_LEN
])) {
4136 DHD_GLOM(("%s: glom descriptor, %d bytes:\n",
4139 if (DHD_GLOM_ON()) {
4140 prhex("Glom Data", pkt
->data
, len
);
4143 __skb_trim(pkt
, len
);
4144 ASSERT(doff
== SDPCM_HDRLEN
);
4145 skb_pull(pkt
, SDPCM_HDRLEN
);
4148 DHD_ERROR(("%s: glom superframe w/o "
4149 "descriptor!\n", __func__
));
4150 dhdsdio_rxfail(bus
, false, false);
4155 /* Fill in packet len and prio, deliver upward */
4156 __skb_trim(pkt
, len
);
4157 skb_pull(pkt
, doff
);
4160 /* Test channel packets are processed separately */
4161 if (chan
== SDPCM_TEST_CHANNEL
) {
4162 dhdsdio_testrcv(bus
, pkt
, seq
);
4167 if (pkt
->len
== 0) {
4168 dhd_os_sdlock_rxq(bus
->dhd
);
4169 pkt_buf_free_skb(pkt
);
4170 dhd_os_sdunlock_rxq(bus
->dhd
);
4172 } else if (dhd_prot_hdrpull(bus
->dhd
, &ifidx
, pkt
) != 0) {
4173 DHD_ERROR(("%s: rx protocol error\n", __func__
));
4174 dhd_os_sdlock_rxq(bus
->dhd
);
4175 pkt_buf_free_skb(pkt
);
4176 dhd_os_sdunlock_rxq(bus
->dhd
);
4177 bus
->dhd
->rx_errors
++;
4181 /* Unlock during rx call */
4182 dhd_os_sdunlock(bus
->dhd
);
4183 dhd_rx_frame(bus
->dhd
, ifidx
, pkt
, 1);
4184 dhd_os_sdlock(bus
->dhd
);
4186 rxcount
= maxframes
- rxleft
;
4188 /* Message if we hit the limit */
4189 if (!rxleft
&& !sdtest
)
4190 DHD_DATA(("%s: hit rx limit of %d frames\n", __func__
,
4193 #endif /* DHD_DEBUG */
4194 DHD_DATA(("%s: processed %d frames\n", __func__
, rxcount
));
4195 /* Back off rxseq if awaiting rtx, update rx_seq */
4198 bus
->rx_seq
= rxseq
;
4203 static u32
dhdsdio_hostmail(dhd_bus_t
*bus
)
4205 sdpcmd_regs_t
*regs
= bus
->regs
;
4211 DHD_TRACE(("%s: Enter\n", __func__
));
4213 /* Read mailbox data and ack that we did so */
4214 R_SDREG(hmb_data
, ®s
->tohostmailboxdata
, retries
);
4215 if (retries
<= retry_limit
)
4216 W_SDREG(SMB_INT_ACK
, ®s
->tosbmailbox
, retries
);
4217 bus
->f1regdata
+= 2;
4219 /* Dongle recomposed rx frames, accept them again */
4220 if (hmb_data
& HMB_DATA_NAKHANDLED
) {
4221 DHD_INFO(("Dongle reports NAK handled, expect rtx of %d\n",
4224 DHD_ERROR(("%s: unexpected NAKHANDLED!\n", __func__
));
4226 bus
->rxskip
= false;
4227 intstatus
|= I_HMB_FRAME_IND
;
4231 * DEVREADY does not occur with gSPI.
4233 if (hmb_data
& (HMB_DATA_DEVREADY
| HMB_DATA_FWREADY
)) {
4235 (hmb_data
& HMB_DATA_VERSION_MASK
) >>
4236 HMB_DATA_VERSION_SHIFT
;
4237 if (bus
->sdpcm_ver
!= SDPCM_PROT_VERSION
)
4238 DHD_ERROR(("Version mismatch, dongle reports %d, "
4240 bus
->sdpcm_ver
, SDPCM_PROT_VERSION
));
4242 DHD_INFO(("Dongle ready, protocol version %d\n",
4247 * Flow Control has been moved into the RX headers and this out of band
4248 * method isn't used any more. Leae this here for possibly
4249 * remaining backward
4250 * compatible with older dongles
4252 if (hmb_data
& HMB_DATA_FC
) {
4254 (hmb_data
& HMB_DATA_FCDATA_MASK
) >> HMB_DATA_FCDATA_SHIFT
;
4256 if (fcbits
& ~bus
->flowcontrol
)
4258 if (bus
->flowcontrol
& ~fcbits
)
4262 bus
->flowcontrol
= fcbits
;
4265 /* Shouldn't be any others */
4266 if (hmb_data
& ~(HMB_DATA_DEVREADY
|
4267 HMB_DATA_NAKHANDLED
|
4270 HMB_DATA_FCDATA_MASK
| HMB_DATA_VERSION_MASK
)) {
4271 DHD_ERROR(("Unknown mailbox data content: 0x%02x\n", hmb_data
));
4277 bool dhdsdio_dpc(dhd_bus_t
*bus
)
4279 bcmsdh_info_t
*sdh
= bus
->sdh
;
4280 sdpcmd_regs_t
*regs
= bus
->regs
;
4281 u32 intstatus
, newstatus
= 0;
4283 uint rxlimit
= dhd_rxbound
; /* Rx frames to read before resched */
4284 uint txlimit
= dhd_txbound
; /* Tx frames to send before resched */
4285 uint framecnt
= 0; /* Temporary counter of tx/rx frames */
4286 bool rxdone
= true; /* Flag for no more read data */
4287 bool resched
= false; /* Flag indicating resched wanted */
4289 DHD_TRACE(("%s: Enter\n", __func__
));
4291 /* Start with leftover status bits */
4292 intstatus
= bus
->intstatus
;
4294 dhd_os_sdlock(bus
->dhd
);
4296 /* If waiting for HTAVAIL, check status */
4297 if (bus
->clkstate
== CLK_PENDING
) {
4299 u8 clkctl
, devctl
= 0;
4302 /* Check for inconsistent device control */
4304 bcmsdh_cfg_read(sdh
, SDIO_FUNC_1
, SBSDIO_DEVICE_CTL
, &err
);
4306 DHD_ERROR(("%s: error reading DEVCTL: %d\n",
4308 bus
->dhd
->busstate
= DHD_BUS_DOWN
;
4310 ASSERT(devctl
& SBSDIO_DEVCTL_CA_INT_ONLY
);
4312 #endif /* DHD_DEBUG */
4314 /* Read CSR, if clock on switch to AVAIL, else ignore */
4316 bcmsdh_cfg_read(sdh
, SDIO_FUNC_1
, SBSDIO_FUNC1_CHIPCLKCSR
,
4319 DHD_ERROR(("%s: error reading CSR: %d\n", __func__
,
4321 bus
->dhd
->busstate
= DHD_BUS_DOWN
;
4324 DHD_INFO(("DPC: PENDING, devctl 0x%02x clkctl 0x%02x\n", devctl
,
4327 if (SBSDIO_HTAV(clkctl
)) {
4329 bcmsdh_cfg_read(sdh
, SDIO_FUNC_1
, SBSDIO_DEVICE_CTL
,
4332 DHD_ERROR(("%s: error reading DEVCTL: %d\n",
4334 bus
->dhd
->busstate
= DHD_BUS_DOWN
;
4336 devctl
&= ~SBSDIO_DEVCTL_CA_INT_ONLY
;
4337 bcmsdh_cfg_write(sdh
, SDIO_FUNC_1
, SBSDIO_DEVICE_CTL
,
4340 DHD_ERROR(("%s: error writing DEVCTL: %d\n",
4342 bus
->dhd
->busstate
= DHD_BUS_DOWN
;
4344 bus
->clkstate
= CLK_AVAIL
;
4352 /* Make sure backplane clock is on */
4353 dhdsdio_clkctl(bus
, CLK_AVAIL
, true);
4354 if (bus
->clkstate
== CLK_PENDING
)
4357 /* Pending interrupt indicates new device status */
4360 R_SDREG(newstatus
, ®s
->intstatus
, retries
);
4362 if (bcmsdh_regfail(bus
->sdh
))
4364 newstatus
&= bus
->hostintmask
;
4365 bus
->fcstate
= !!(newstatus
& I_HMB_FC_STATE
);
4367 W_SDREG(newstatus
, ®s
->intstatus
, retries
);
4372 /* Merge new bits with previous */
4373 intstatus
|= newstatus
;
4376 /* Handle flow-control change: read new state in case our ack
4377 * crossed another change interrupt. If change still set, assume
4378 * FC ON for safety, let next loop through do the debounce.
4380 if (intstatus
& I_HMB_FC_CHANGE
) {
4381 intstatus
&= ~I_HMB_FC_CHANGE
;
4382 W_SDREG(I_HMB_FC_CHANGE
, ®s
->intstatus
, retries
);
4383 R_SDREG(newstatus
, ®s
->intstatus
, retries
);
4384 bus
->f1regdata
+= 2;
4386 !!(newstatus
& (I_HMB_FC_STATE
| I_HMB_FC_CHANGE
));
4387 intstatus
|= (newstatus
& bus
->hostintmask
);
4390 /* Handle host mailbox indication */
4391 if (intstatus
& I_HMB_HOST_INT
) {
4392 intstatus
&= ~I_HMB_HOST_INT
;
4393 intstatus
|= dhdsdio_hostmail(bus
);
4396 /* Generally don't ask for these, can get CRC errors... */
4397 if (intstatus
& I_WR_OOSYNC
) {
4398 DHD_ERROR(("Dongle reports WR_OOSYNC\n"));
4399 intstatus
&= ~I_WR_OOSYNC
;
4402 if (intstatus
& I_RD_OOSYNC
) {
4403 DHD_ERROR(("Dongle reports RD_OOSYNC\n"));
4404 intstatus
&= ~I_RD_OOSYNC
;
4407 if (intstatus
& I_SBINT
) {
4408 DHD_ERROR(("Dongle reports SBINT\n"));
4409 intstatus
&= ~I_SBINT
;
4412 /* Would be active due to wake-wlan in gSPI */
4413 if (intstatus
& I_CHIPACTIVE
) {
4414 DHD_INFO(("Dongle reports CHIPACTIVE\n"));
4415 intstatus
&= ~I_CHIPACTIVE
;
4418 /* Ignore frame indications if rxskip is set */
4420 intstatus
&= ~I_HMB_FRAME_IND
;
4422 /* On frame indication, read available frames */
4423 if (PKT_AVAILABLE()) {
4424 framecnt
= dhdsdio_readframes(bus
, rxlimit
, &rxdone
);
4425 if (rxdone
|| bus
->rxskip
)
4426 intstatus
&= ~I_HMB_FRAME_IND
;
4427 rxlimit
-= min(framecnt
, rxlimit
);
4430 /* Keep still-pending events for next scheduling */
4431 bus
->intstatus
= intstatus
;
4434 #if defined(OOB_INTR_ONLY)
4435 bcmsdh_oob_intr_set(1);
4436 #endif /* (OOB_INTR_ONLY) */
4437 /* Re-enable interrupts to detect new device events (mailbox, rx frame)
4438 * or clock availability. (Allows tx loop to check ipend if desired.)
4439 * (Unless register access seems hosed, as we may not be able to ACK...)
4441 if (bus
->intr
&& bus
->intdis
&& !bcmsdh_regfail(sdh
)) {
4442 DHD_INTR(("%s: enable SDIO interrupts, rxdone %d framecnt %d\n",
4443 __func__
, rxdone
, framecnt
));
4444 bus
->intdis
= false;
4445 bcmsdh_intr_enable(sdh
);
4448 if (DATAOK(bus
) && bus
->ctrl_frame_stat
&&
4449 (bus
->clkstate
== CLK_AVAIL
)) {
4453 dhd_bcmsdh_send_buf(bus
, bcmsdh_cur_sbwad(sdh
), SDIO_FUNC_2
,
4454 F2SYNC
, (u8
*) bus
->ctrl_frame_buf
,
4455 (u32
) bus
->ctrl_frame_len
, NULL
,
4457 ASSERT(ret
!= BCME_PENDING
);
4460 /* On failure, abort the command and
4461 terminate the frame */
4462 DHD_INFO(("%s: sdio error %d, abort command and "
4463 "terminate frame.\n", __func__
, ret
));
4466 bcmsdh_abort(sdh
, SDIO_FUNC_2
);
4468 bcmsdh_cfg_write(sdh
, SDIO_FUNC_1
,
4469 SBSDIO_FUNC1_FRAMECTRL
, SFC_WF_TERM
,
4473 for (i
= 0; i
< 3; i
++) {
4475 hi
= bcmsdh_cfg_read(sdh
, SDIO_FUNC_1
,
4476 SBSDIO_FUNC1_WFRAMEBCHI
,
4478 lo
= bcmsdh_cfg_read(sdh
, SDIO_FUNC_1
,
4479 SBSDIO_FUNC1_WFRAMEBCLO
,
4481 bus
->f1regdata
+= 2;
4482 if ((hi
== 0) && (lo
== 0))
4488 bus
->tx_seq
= (bus
->tx_seq
+ 1) % SDPCM_SEQUENCE_WRAP
;
4490 DHD_INFO(("Return_dpc value is : %d\n", ret
));
4491 bus
->ctrl_frame_stat
= false;
4492 dhd_wait_event_wakeup(bus
->dhd
);
4494 /* Send queued frames (limit 1 if rx may still be pending) */
4495 else if ((bus
->clkstate
== CLK_AVAIL
) && !bus
->fcstate
&&
4496 pktq_mlen(&bus
->txq
, ~bus
->flowcontrol
) && txlimit
4498 framecnt
= rxdone
? txlimit
: min(txlimit
, dhd_txminmax
);
4499 framecnt
= dhdsdio_sendfromq(bus
, framecnt
);
4500 txlimit
-= framecnt
;
4503 /* Resched if events or tx frames are pending,
4504 else await next interrupt */
4505 /* On failed register access, all bets are off:
4506 no resched or interrupts */
4507 if ((bus
->dhd
->busstate
== DHD_BUS_DOWN
) || bcmsdh_regfail(sdh
)) {
4508 DHD_ERROR(("%s: failed backplane access over SDIO, halting "
4509 "operation %d\n", __func__
, bcmsdh_regfail(sdh
)));
4510 bus
->dhd
->busstate
= DHD_BUS_DOWN
;
4512 } else if (bus
->clkstate
== CLK_PENDING
) {
4513 DHD_INFO(("%s: rescheduled due to CLK_PENDING awaiting "
4514 "I_CHIPACTIVE interrupt\n", __func__
));
4516 } else if (bus
->intstatus
|| bus
->ipend
||
4517 (!bus
->fcstate
&& pktq_mlen(&bus
->txq
, ~bus
->flowcontrol
) &&
4518 DATAOK(bus
)) || PKT_AVAILABLE()) {
4522 bus
->dpc_sched
= resched
;
4524 /* If we're done for now, turn off clock request. */
4525 if ((bus
->clkstate
!= CLK_PENDING
)
4526 && bus
->idletime
== DHD_IDLE_IMMEDIATE
) {
4527 bus
->activity
= false;
4528 dhdsdio_clkctl(bus
, CLK_NONE
, false);
4531 dhd_os_sdunlock(bus
->dhd
);
4536 bool dhd_bus_dpc(struct dhd_bus
*bus
)
4540 /* Call the DPC directly. */
4541 DHD_TRACE(("Calling dhdsdio_dpc() from %s\n", __func__
));
4542 resched
= dhdsdio_dpc(bus
);
4547 void dhdsdio_isr(void *arg
)
4549 dhd_bus_t
*bus
= (dhd_bus_t
*) arg
;
4552 DHD_TRACE(("%s: Enter\n", __func__
));
4555 DHD_ERROR(("%s : bus is null pointer , exit\n", __func__
));
4560 if (bus
->dhd
->busstate
== DHD_BUS_DOWN
) {
4561 DHD_ERROR(("%s : bus is down. we have nothing to do\n",
4565 /* Count the interrupt call */
4569 /* Shouldn't get this interrupt if we're sleeping? */
4570 if (bus
->sleeping
) {
4571 DHD_ERROR(("INTERRUPT WHILE SLEEPING??\n"));
4575 /* Disable additional interrupts (is this needed now)? */
4577 DHD_INTR(("%s: disable SDIO interrupts\n", __func__
));
4579 DHD_ERROR(("dhdsdio_isr() w/o interrupt configured!\n"));
4581 bcmsdh_intr_disable(sdh
);
4584 #if defined(SDIO_ISR_THREAD)
4585 DHD_TRACE(("Calling dhdsdio_dpc() from %s\n", __func__
));
4586 while (dhdsdio_dpc(bus
))
4589 bus
->dpc_sched
= true;
4590 dhd_sched_dpc(bus
->dhd
);
4596 static void dhdsdio_pktgen_init(dhd_bus_t
*bus
)
4598 /* Default to specified length, or full range */
4599 if (dhd_pktgen_len
) {
4600 bus
->pktgen_maxlen
= min(dhd_pktgen_len
, MAX_PKTGEN_LEN
);
4601 bus
->pktgen_minlen
= bus
->pktgen_maxlen
;
4603 bus
->pktgen_maxlen
= MAX_PKTGEN_LEN
;
4604 bus
->pktgen_minlen
= 0;
4606 bus
->pktgen_len
= (u16
) bus
->pktgen_minlen
;
4608 /* Default to per-watchdog burst with 10s print time */
4609 bus
->pktgen_freq
= 1;
4610 bus
->pktgen_print
= 10000 / dhd_watchdog_ms
;
4611 bus
->pktgen_count
= (dhd_pktgen
* dhd_watchdog_ms
+ 999) / 1000;
4613 /* Default to echo mode */
4614 bus
->pktgen_mode
= DHD_PKTGEN_ECHO
;
4615 bus
->pktgen_stop
= 1;
4618 static void dhdsdio_pktgen(dhd_bus_t
*bus
)
4620 struct sk_buff
*pkt
;
4626 /* Display current count if appropriate */
4627 if (bus
->pktgen_print
&& (++bus
->pktgen_ptick
>= bus
->pktgen_print
)) {
4628 bus
->pktgen_ptick
= 0;
4629 printk(KERN_DEBUG
"%s: send attempts %d rcvd %d\n",
4630 __func__
, bus
->pktgen_sent
, bus
->pktgen_rcvd
);
4633 /* For recv mode, just make sure dongle has started sending */
4634 if (bus
->pktgen_mode
== DHD_PKTGEN_RECV
) {
4635 if (!bus
->pktgen_rcvd
)
4636 dhdsdio_sdtest_set(bus
, true);
4640 /* Otherwise, generate or request the specified number of packets */
4641 for (pktcount
= 0; pktcount
< bus
->pktgen_count
; pktcount
++) {
4642 /* Stop if total has been reached */
4643 if (bus
->pktgen_total
4644 && (bus
->pktgen_sent
>= bus
->pktgen_total
)) {
4645 bus
->pktgen_count
= 0;
4649 /* Allocate an appropriate-sized packet */
4650 len
= bus
->pktgen_len
;
4651 pkt
= pkt_buf_get_skb(
4652 (len
+ SDPCM_HDRLEN
+ SDPCM_TEST_HDRLEN
+ DHD_SDALIGN
),
4655 DHD_ERROR(("%s: pkt_buf_get_skb failed!\n", __func__
));
4658 PKTALIGN(pkt
, (len
+ SDPCM_HDRLEN
+ SDPCM_TEST_HDRLEN
),
4660 data
= (u8
*) (pkt
->data
) + SDPCM_HDRLEN
;
4662 /* Write test header cmd and extra based on mode */
4663 switch (bus
->pktgen_mode
) {
4664 case DHD_PKTGEN_ECHO
:
4665 *data
++ = SDPCM_TEST_ECHOREQ
;
4666 *data
++ = (u8
) bus
->pktgen_sent
;
4669 case DHD_PKTGEN_SEND
:
4670 *data
++ = SDPCM_TEST_DISCARD
;
4671 *data
++ = (u8
) bus
->pktgen_sent
;
4674 case DHD_PKTGEN_RXBURST
:
4675 *data
++ = SDPCM_TEST_BURST
;
4676 *data
++ = (u8
) bus
->pktgen_count
;
4680 DHD_ERROR(("Unrecognized pktgen mode %d\n",
4682 pkt_buf_free_skb(pkt
, true);
4683 bus
->pktgen_count
= 0;
4687 /* Write test header length field */
4688 *data
++ = (len
>> 0);
4689 *data
++ = (len
>> 8);
4691 /* Then fill in the remainder -- N/A for burst,
4693 for (fillbyte
= 0; fillbyte
< len
; fillbyte
++)
4695 SDPCM_TEST_FILL(fillbyte
, (u8
) bus
->pktgen_sent
);
4698 if (DHD_BYTES_ON() && DHD_DATA_ON()) {
4699 data
= (u8
*) (pkt
->data
) + SDPCM_HDRLEN
;
4700 prhex("dhdsdio_pktgen: Tx Data", data
,
4701 pkt
->len
- SDPCM_HDRLEN
);
4706 if (dhdsdio_txpkt(bus
, pkt
, SDPCM_TEST_CHANNEL
, true)) {
4708 if (bus
->pktgen_stop
4709 && bus
->pktgen_stop
== bus
->pktgen_fail
)
4710 bus
->pktgen_count
= 0;
4714 /* Bump length if not fixed, wrap at max */
4715 if (++bus
->pktgen_len
> bus
->pktgen_maxlen
)
4716 bus
->pktgen_len
= (u16
) bus
->pktgen_minlen
;
4718 /* Special case for burst mode: just send one request! */
4719 if (bus
->pktgen_mode
== DHD_PKTGEN_RXBURST
)
4724 static void dhdsdio_sdtest_set(dhd_bus_t
*bus
, bool start
)
4726 struct sk_buff
*pkt
;
4729 /* Allocate the packet */
4730 pkt
= pkt_buf_get_skb(SDPCM_HDRLEN
+ SDPCM_TEST_HDRLEN
+ DHD_SDALIGN
,
4733 DHD_ERROR(("%s: pkt_buf_get_skb failed!\n", __func__
));
4736 PKTALIGN(pkt
, (SDPCM_HDRLEN
+ SDPCM_TEST_HDRLEN
), DHD_SDALIGN
);
4737 data
= (u8
*) (pkt
->data
) + SDPCM_HDRLEN
;
4739 /* Fill in the test header */
4740 *data
++ = SDPCM_TEST_SEND
;
4742 *data
++ = (bus
->pktgen_maxlen
>> 0);
4743 *data
++ = (bus
->pktgen_maxlen
>> 8);
4746 if (dhdsdio_txpkt(bus
, pkt
, SDPCM_TEST_CHANNEL
, true))
4750 static void dhdsdio_testrcv(dhd_bus_t
*bus
, struct sk_buff
*pkt
, uint seq
)
4760 /* Check for min length */
4762 if (pktlen
< SDPCM_TEST_HDRLEN
) {
4763 DHD_ERROR(("dhdsdio_restrcv: toss runt frame, pktlen %d\n",
4765 pkt_buf_free_skb(pkt
, false);
4769 /* Extract header fields */
4774 len
+= *data
++ << 8;
4776 /* Check length for relevant commands */
4777 if (cmd
== SDPCM_TEST_DISCARD
|| cmd
== SDPCM_TEST_ECHOREQ
4778 || cmd
== SDPCM_TEST_ECHORSP
) {
4779 if (pktlen
!= len
+ SDPCM_TEST_HDRLEN
) {
4780 DHD_ERROR(("dhdsdio_testrcv: frame length mismatch, "
4781 "pktlen %d seq %d" " cmd %d extra %d len %d\n",
4782 pktlen
, seq
, cmd
, extra
, len
));
4783 pkt_buf_free_skb(pkt
, false);
4788 /* Process as per command */
4790 case SDPCM_TEST_ECHOREQ
:
4791 /* Rx->Tx turnaround ok (even on NDIS w/current
4793 *(u8
*) (pkt
->data
) = SDPCM_TEST_ECHORSP
;
4794 if (dhdsdio_txpkt(bus
, pkt
, SDPCM_TEST_CHANNEL
, true) == 0) {
4798 pkt_buf_free_skb(pkt
, false);
4803 case SDPCM_TEST_ECHORSP
:
4804 if (bus
->ext_loop
) {
4805 pkt_buf_free_skb(pkt
, false);
4810 for (offset
= 0; offset
< len
; offset
++, data
++) {
4811 if (*data
!= SDPCM_TEST_FILL(offset
, extra
)) {
4812 DHD_ERROR(("dhdsdio_testrcv: echo data mismatch: " "offset %d (len %d) expect 0x%02x rcvd 0x%02x\n",
4814 SDPCM_TEST_FILL(offset
, extra
), *data
));
4818 pkt_buf_free_skb(pkt
, false);
4822 case SDPCM_TEST_DISCARD
:
4823 pkt_buf_free_skb(pkt
, false);
4827 case SDPCM_TEST_BURST
:
4828 case SDPCM_TEST_SEND
:
4830 DHD_INFO(("dhdsdio_testrcv: unsupported or unknown command, "
4831 "pktlen %d seq %d" " cmd %d extra %d len %d\n",
4832 pktlen
, seq
, cmd
, extra
, len
));
4833 pkt_buf_free_skb(pkt
, false);
4837 /* For recv mode, stop at limie (and tell dongle to stop sending) */
4838 if (bus
->pktgen_mode
== DHD_PKTGEN_RECV
) {
4839 if (bus
->pktgen_total
4840 && (bus
->pktgen_rcvd
>= bus
->pktgen_total
)) {
4841 bus
->pktgen_count
= 0;
4842 dhdsdio_sdtest_set(bus
, false);
4848 extern bool dhd_bus_watchdog(dhd_pub_t
*dhdp
)
4852 DHD_TIMER(("%s: Enter\n", __func__
));
4856 if (bus
->dhd
->dongle_reset
)
4859 /* Ignore the timer if simulating bus down */
4863 dhd_os_sdlock(bus
->dhd
);
4865 /* Poll period: check device if appropriate. */
4866 if (bus
->poll
&& (++bus
->polltick
>= bus
->pollrate
)) {
4869 /* Reset poll tick */
4872 /* Check device if no interrupts */
4873 if (!bus
->intr
|| (bus
->intrcount
== bus
->lastintrs
)) {
4875 if (!bus
->dpc_sched
) {
4877 devpend
= bcmsdh_cfg_read(bus
->sdh
, SDIO_FUNC_0
,
4881 devpend
& (INTR_STATUS_FUNC1
|
4885 /* If there is something, make like the ISR and
4891 bcmsdh_intr_disable(bus
->sdh
);
4893 bus
->dpc_sched
= true;
4894 dhd_sched_dpc(bus
->dhd
);
4899 /* Update interrupt tracking */
4900 bus
->lastintrs
= bus
->intrcount
;
4903 /* Poll for console output periodically */
4904 if (dhdp
->busstate
== DHD_BUS_DATA
&& dhd_console_ms
!= 0) {
4905 bus
->console
.count
+= dhd_watchdog_ms
;
4906 if (bus
->console
.count
>= dhd_console_ms
) {
4907 bus
->console
.count
-= dhd_console_ms
;
4908 /* Make sure backplane clock is on */
4909 dhdsdio_clkctl(bus
, CLK_AVAIL
, false);
4910 if (dhdsdio_readconsole(bus
) < 0)
4911 dhd_console_ms
= 0; /* On error,
4915 #endif /* DHD_DEBUG */
4918 /* Generate packets if configured */
4919 if (bus
->pktgen_count
&& (++bus
->pktgen_tick
>= bus
->pktgen_freq
)) {
4920 /* Make sure backplane clock is on */
4921 dhdsdio_clkctl(bus
, CLK_AVAIL
, false);
4922 bus
->pktgen_tick
= 0;
4923 dhdsdio_pktgen(bus
);
4927 /* On idle timeout clear activity flag and/or turn off clock */
4928 if ((bus
->idletime
> 0) && (bus
->clkstate
== CLK_AVAIL
)) {
4929 if (++bus
->idlecount
>= bus
->idletime
) {
4931 if (bus
->activity
) {
4932 bus
->activity
= false;
4933 dhd_os_wd_timer(bus
->dhd
, dhd_watchdog_ms
);
4935 dhdsdio_clkctl(bus
, CLK_NONE
, false);
4940 dhd_os_sdunlock(bus
->dhd
);
4946 extern int dhd_bus_console_in(dhd_pub_t
*dhdp
, unsigned char *msg
, uint msglen
)
4948 dhd_bus_t
*bus
= dhdp
->bus
;
4951 struct sk_buff
*pkt
;
4953 /* Address could be zero if CONSOLE := 0 in dongle Makefile */
4954 if (bus
->console_addr
== 0)
4955 return BCME_UNSUPPORTED
;
4957 /* Exclusive bus access */
4958 dhd_os_sdlock(bus
->dhd
);
4960 /* Don't allow input if dongle is in reset */
4961 if (bus
->dhd
->dongle_reset
) {
4962 dhd_os_sdunlock(bus
->dhd
);
4963 return BCME_NOTREADY
;
4966 /* Request clock to allow SDIO accesses */
4968 /* No pend allowed since txpkt is called later, ht clk has to be on */
4969 dhdsdio_clkctl(bus
, CLK_AVAIL
, false);
4971 /* Zero cbuf_index */
4972 addr
= bus
->console_addr
+ offsetof(hndrte_cons_t
, cbuf_idx
);
4973 val
= cpu_to_le32(0);
4974 rv
= dhdsdio_membytes(bus
, true, addr
, (u8
*)&val
, sizeof(val
));
4978 /* Write message into cbuf */
4979 addr
= bus
->console_addr
+ offsetof(hndrte_cons_t
, cbuf
);
4980 rv
= dhdsdio_membytes(bus
, true, addr
, (u8
*)msg
, msglen
);
4984 /* Write length into vcons_in */
4985 addr
= bus
->console_addr
+ offsetof(hndrte_cons_t
, vcons_in
);
4986 val
= cpu_to_le32(msglen
);
4987 rv
= dhdsdio_membytes(bus
, true, addr
, (u8
*)&val
, sizeof(val
));
4991 /* Bump dongle by sending an empty event pkt.
4992 * sdpcm_sendup (RX) checks for virtual console input.
4994 pkt
= pkt_buf_get_skb(4 + SDPCM_RESERVE
);
4995 if ((pkt
!= NULL
) && bus
->clkstate
== CLK_AVAIL
)
4996 dhdsdio_txpkt(bus
, pkt
, SDPCM_EVENT_CHANNEL
, true);
4999 if ((bus
->idletime
== DHD_IDLE_IMMEDIATE
) && !bus
->dpc_sched
) {
5000 bus
->activity
= false;
5001 dhdsdio_clkctl(bus
, CLK_NONE
, true);
5004 dhd_os_sdunlock(bus
->dhd
);
5008 #endif /* DHD_DEBUG */
5011 static void dhd_dump_cis(uint fn
, u8
*cis
)
5013 uint byte
, tag
, tdata
;
5014 DHD_INFO(("Function %d CIS:\n", fn
));
5016 for (tdata
= byte
= 0; byte
< SBSDIO_CIS_SIZE_LIMIT
; byte
++) {
5017 if ((byte
% 16) == 0)
5019 DHD_INFO(("%02x ", cis
[byte
]));
5020 if ((byte
% 16) == 15)
5028 else if ((byte
+ 1) < SBSDIO_CIS_SIZE_LIMIT
)
5029 tdata
= cis
[byte
+ 1] + 1;
5034 if ((byte
% 16) != 15)
5037 #endif /* DHD_DEBUG */
5039 static bool dhdsdio_chipmatch(u16 chipid
)
5041 if (chipid
== BCM4325_CHIP_ID
)
5043 if (chipid
== BCM4329_CHIP_ID
)
5045 if (chipid
== BCM4319_CHIP_ID
)
5050 static void *dhdsdio_probe(u16 venid
, u16 devid
, u16 bus_no
,
5051 u16 slot
, u16 func
, uint bustype
, void *regsva
,
5057 /* Init global variables at run-time, not as part of the declaration.
5058 * This is required to support init/de-init of the driver.
5060 * of globals as part of the declaration results in non-deterministic
5061 * behavior since the value of the globals may be different on the
5062 * first time that the driver is initialized vs subsequent
5065 dhd_txbound
= DHD_TXBOUND
;
5066 dhd_rxbound
= DHD_RXBOUND
;
5067 dhd_alignctl
= true;
5069 dhd_readahead
= true;
5071 dhd_dongle_memsize
= 0;
5072 dhd_txminmax
= DHD_TXMINMAX
;
5078 DHD_TRACE(("%s: Enter\n", __func__
));
5079 DHD_INFO(("%s: venid 0x%04x devid 0x%04x\n", __func__
, venid
, devid
));
5081 /* We make assumptions about address window mappings */
5082 ASSERT((unsigned long)regsva
== SI_ENUM_BASE
);
5084 /* BCMSDH passes venid and devid based on CIS parsing -- but
5086 * means early parse could fail, so here we should get either an ID
5087 * we recognize OR (-1) indicating we must request power first.
5089 /* Check the Vendor ID */
5092 case VENDOR_BROADCOM
:
5095 DHD_ERROR(("%s: unknown vendor: 0x%04x\n", __func__
, venid
));
5099 /* Check the Device ID and make sure it's one that we support */
5101 case BCM4325_D11DUAL_ID
: /* 4325 802.11a/g id */
5102 case BCM4325_D11G_ID
: /* 4325 802.11g 2.4Ghz band id */
5103 case BCM4325_D11A_ID
: /* 4325 802.11a 5Ghz band id */
5104 DHD_INFO(("%s: found 4325 Dongle\n", __func__
));
5106 case BCM4329_D11NDUAL_ID
: /* 4329 802.11n dualband device */
5107 case BCM4329_D11N2G_ID
: /* 4329 802.11n 2.4G device */
5108 case BCM4329_D11N5G_ID
: /* 4329 802.11n 5G device */
5110 DHD_INFO(("%s: found 4329 Dongle\n", __func__
));
5112 case BCM4319_D11N_ID
: /* 4319 802.11n id */
5113 case BCM4319_D11N2G_ID
: /* 4319 802.11n2g id */
5114 case BCM4319_D11N5G_ID
: /* 4319 802.11n5g id */
5115 DHD_INFO(("%s: found 4319 Dongle\n", __func__
));
5118 DHD_INFO(("%s: allow device id 0, will check chip internals\n",
5123 DHD_ERROR(("%s: skipping 0x%04x/0x%04x, not a dongle\n",
5124 __func__
, venid
, devid
));
5128 /* Allocate private bus interface state */
5129 bus
= kzalloc(sizeof(dhd_bus_t
), GFP_ATOMIC
);
5131 DHD_ERROR(("%s: kmalloc of dhd_bus_t failed\n", __func__
));
5135 bus
->cl_devid
= (u16
) devid
;
5137 bus
->tx_seq
= SDPCM_SEQUENCE_WRAP
- 1;
5138 bus
->usebufpool
= false; /* Use bufpool if allocated,
5139 else use locally malloced rxbuf */
5141 /* attempt to attach to the dongle */
5142 if (!(dhdsdio_probe_attach(bus
, sdh
, regsva
, devid
))) {
5143 DHD_ERROR(("%s: dhdsdio_probe_attach failed\n", __func__
));
5147 /* Attach to the dhd/OS/network interface */
5148 bus
->dhd
= dhd_attach(bus
, SDPCM_RESERVE
);
5150 DHD_ERROR(("%s: dhd_attach failed\n", __func__
));
5154 /* Allocate buffers */
5155 if (!(dhdsdio_probe_malloc(bus
, sdh
))) {
5156 DHD_ERROR(("%s: dhdsdio_probe_malloc failed\n", __func__
));
5160 if (!(dhdsdio_probe_init(bus
, sdh
))) {
5161 DHD_ERROR(("%s: dhdsdio_probe_init failed\n", __func__
));
5165 /* Register interrupt callback, but mask it (not operational yet). */
5166 DHD_INTR(("%s: disable SDIO interrupts (not interested yet)\n",
5168 bcmsdh_intr_disable(sdh
);
5169 ret
= bcmsdh_intr_reg(sdh
, dhdsdio_isr
, bus
);
5171 DHD_ERROR(("%s: FAILED: bcmsdh_intr_reg returned %d\n",
5175 DHD_INTR(("%s: registered SDIO interrupt function ok\n", __func__
));
5177 DHD_INFO(("%s: completed!!\n", __func__
));
5179 /* if firmware path present try to download and bring up bus */
5180 ret
= dhd_bus_start(bus
->dhd
);
5182 if (ret
== BCME_NOTUP
) {
5183 DHD_ERROR(("%s: dongle is not responding\n", __func__
));
5187 /* Ok, have the per-port tell the stack we're open for business */
5188 if (dhd_net_attach(bus
->dhd
, 0) != 0) {
5189 DHD_ERROR(("%s: Net attach failed!!\n", __func__
));
5196 dhdsdio_release(bus
);
5201 dhdsdio_probe_attach(struct dhd_bus
*bus
, void *sdh
, void *regsva
, u16 devid
)
5206 bus
->alp_only
= true;
5208 /* Return the window to backplane enumeration space for core access */
5209 if (dhdsdio_set_siaddr_window(bus
, SI_ENUM_BASE
))
5210 DHD_ERROR(("%s: FAILED to return to SI_ENUM_BASE\n", __func__
));
5213 printk(KERN_DEBUG
"F1 signature read @0x18000000=0x%4x\n",
5214 bcmsdh_reg_read(bus
->sdh
, SI_ENUM_BASE
, 4));
5216 #endif /* DHD_DEBUG */
5218 /* Force PLL off until si_attach() programs PLL control regs */
5220 bcmsdh_cfg_write(sdh
, SDIO_FUNC_1
, SBSDIO_FUNC1_CHIPCLKCSR
,
5221 DHD_INIT_CLKCTL1
, &err
);
5224 bcmsdh_cfg_read(sdh
, SDIO_FUNC_1
, SBSDIO_FUNC1_CHIPCLKCSR
,
5227 if (err
|| ((clkctl
& ~SBSDIO_AVBITS
) != DHD_INIT_CLKCTL1
)) {
5228 DHD_ERROR(("dhdsdio_probe: ChipClkCSR access: err %d wrote "
5229 "0x%02x read 0x%02x\n",
5230 err
, DHD_INIT_CLKCTL1
, clkctl
));
5234 if (DHD_INFO_ON()) {
5236 u8
*cis
[SDIOD_MAX_IOFUNCS
];
5239 numfn
= bcmsdh_query_iofnum(sdh
);
5240 ASSERT(numfn
<= SDIOD_MAX_IOFUNCS
);
5242 /* Make sure ALP is available before trying to read CIS */
5243 SPINWAIT(((clkctl
= bcmsdh_cfg_read(sdh
, SDIO_FUNC_1
,
5244 SBSDIO_FUNC1_CHIPCLKCSR
,
5246 !SBSDIO_ALPAV(clkctl
)), PMU_MAX_TRANSITION_DLY
);
5248 /* Now request ALP be put on the bus */
5249 bcmsdh_cfg_write(sdh
, SDIO_FUNC_1
, SBSDIO_FUNC1_CHIPCLKCSR
,
5250 DHD_INIT_CLKCTL2
, &err
);
5253 for (fn
= 0; fn
<= numfn
; fn
++) {
5254 cis
[fn
] = kzalloc(SBSDIO_CIS_SIZE_LIMIT
, GFP_ATOMIC
);
5256 DHD_INFO(("dhdsdio_probe: fn %d cis malloc "
5261 err
= bcmsdh_cis_read(sdh
, fn
, cis
[fn
],
5262 SBSDIO_CIS_SIZE_LIMIT
);
5264 DHD_INFO(("dhdsdio_probe: fn %d cis read "
5265 "err %d\n", fn
, err
));
5269 dhd_dump_cis(fn
, cis
[fn
]);
5278 DHD_ERROR(("dhdsdio_probe: error read/parsing CIS\n"));
5282 #endif /* DHD_DEBUG */
5284 /* si_attach() will provide an SI handle and scan the backplane */
5285 bus
->sih
= si_attach((uint
) devid
, regsva
, DHD_BUS
, sdh
,
5286 &bus
->vars
, &bus
->varsz
);
5288 DHD_ERROR(("%s: si_attach failed!\n", __func__
));
5292 bcmsdh_chipinfo(sdh
, bus
->sih
->chip
, bus
->sih
->chiprev
);
5294 if (!dhdsdio_chipmatch((u16
) bus
->sih
->chip
)) {
5295 DHD_ERROR(("%s: unsupported chip: 0x%04x\n",
5296 __func__
, bus
->sih
->chip
));
5300 si_sdiod_drive_strength_init(bus
->sih
, dhd_sdiod_drive_strength
);
5302 /* Get info on the ARM and SOCRAM cores... */
5303 if (!DHD_NOPMU(bus
)) {
5304 if ((si_setcore(bus
->sih
, ARM7S_CORE_ID
, 0)) ||
5305 (si_setcore(bus
->sih
, ARMCM3_CORE_ID
, 0))) {
5306 bus
->armrev
= si_corerev(bus
->sih
);
5308 DHD_ERROR(("%s: failed to find ARM core!\n", __func__
));
5311 bus
->orig_ramsize
= si_socram_size(bus
->sih
);
5312 if (!(bus
->orig_ramsize
)) {
5313 DHD_ERROR(("%s: failed to find SOCRAM memory!\n",
5317 bus
->ramsize
= bus
->orig_ramsize
;
5318 if (dhd_dongle_memsize
)
5319 dhd_dongle_setmemsize(bus
, dhd_dongle_memsize
);
5321 DHD_ERROR(("DHD: dongle ram size is set to %d(orig %d)\n",
5322 bus
->ramsize
, bus
->orig_ramsize
));
5325 /* ...but normally deal with the SDPCMDEV core */
5326 bus
->regs
= si_setcore(bus
->sih
, PCMCIA_CORE_ID
, 0);
5328 bus
->regs
= si_setcore(bus
->sih
, SDIOD_CORE_ID
, 0);
5330 DHD_ERROR(("%s: failed to find SDIODEV core!\n",
5335 bus
->sdpcmrev
= si_corerev(bus
->sih
);
5337 /* Set core control so an SDIO reset does a backplane reset */
5338 OR_REG(&bus
->regs
->corecontrol
, CC_BPRESEN
);
5340 pktq_init(&bus
->txq
, (PRIOMASK
+ 1), TXQLEN
);
5342 /* Locate an appropriately-aligned portion of hdrbuf */
5343 bus
->rxhdr
= (u8
*) roundup((unsigned long)&bus
->hdrbuf
[0], DHD_SDALIGN
);
5345 /* Set the poll and/or interrupt flags */
5346 bus
->intr
= (bool) dhd_intr
;
5347 bus
->poll
= (bool) dhd_poll
;
5357 static bool dhdsdio_probe_malloc(dhd_bus_t
*bus
, void *sdh
)
5359 DHD_TRACE(("%s: Enter\n", __func__
));
5361 if (bus
->dhd
->maxctl
) {
5363 roundup((bus
->dhd
->maxctl
+ SDPCM_HDRLEN
),
5364 ALIGNMENT
) + DHD_SDALIGN
;
5365 bus
->rxbuf
= kmalloc(bus
->rxblen
, GFP_ATOMIC
);
5366 if (!(bus
->rxbuf
)) {
5367 DHD_ERROR(("%s: kmalloc of %d-byte rxbuf failed\n",
5368 __func__
, bus
->rxblen
));
5373 /* Allocate buffer to receive glomed packet */
5374 bus
->databuf
= kmalloc(MAX_DATA_BUF
, GFP_ATOMIC
);
5375 if (!(bus
->databuf
)) {
5376 DHD_ERROR(("%s: kmalloc of %d-byte databuf failed\n",
5377 __func__
, MAX_DATA_BUF
));
5378 /* release rxbuf which was already located as above */
5384 /* Align the buffer */
5385 if ((unsigned long)bus
->databuf
% DHD_SDALIGN
)
5387 bus
->databuf
+ (DHD_SDALIGN
-
5388 ((unsigned long)bus
->databuf
% DHD_SDALIGN
));
5390 bus
->dataptr
= bus
->databuf
;
5398 static bool dhdsdio_probe_init(dhd_bus_t
*bus
, void *sdh
)
5402 DHD_TRACE(("%s: Enter\n", __func__
));
5405 dhdsdio_pktgen_init(bus
);
5408 /* Disable F2 to clear any intermediate frame state on the dongle */
5409 bcmsdh_cfg_write(sdh
, SDIO_FUNC_0
, SDIOD_CCCR_IOEN
, SDIO_FUNC_ENABLE_1
,
5412 bus
->dhd
->busstate
= DHD_BUS_DOWN
;
5413 bus
->sleeping
= false;
5414 bus
->rxflow
= false;
5415 bus
->prev_rxlim_hit
= 0;
5417 /* Done with backplane-dependent accesses, can drop clock... */
5418 bcmsdh_cfg_write(sdh
, SDIO_FUNC_1
, SBSDIO_FUNC1_CHIPCLKCSR
, 0, NULL
);
5420 /* ...and initialize clock/power states */
5421 bus
->clkstate
= CLK_SDONLY
;
5422 bus
->idletime
= (s32
) dhd_idletime
;
5423 bus
->idleclock
= DHD_IDLE_ACTIVE
;
5425 /* Query the SD clock speed */
5426 if (bcmsdh_iovar_op(sdh
, "sd_divisor", NULL
, 0,
5427 &bus
->sd_divisor
, sizeof(s32
),
5428 false) != BCME_OK
) {
5429 DHD_ERROR(("%s: fail on %s get\n", __func__
, "sd_divisor"));
5430 bus
->sd_divisor
= -1;
5432 DHD_INFO(("%s: Initial value for %s is %d\n",
5433 __func__
, "sd_divisor", bus
->sd_divisor
));
5436 /* Query the SD bus mode */
5437 if (bcmsdh_iovar_op(sdh
, "sd_mode", NULL
, 0,
5438 &bus
->sd_mode
, sizeof(s32
), false) != BCME_OK
) {
5439 DHD_ERROR(("%s: fail on %s get\n", __func__
, "sd_mode"));
5442 DHD_INFO(("%s: Initial value for %s is %d\n",
5443 __func__
, "sd_mode", bus
->sd_mode
));
5446 /* Query the F2 block size, set roundup accordingly */
5448 if (bcmsdh_iovar_op(sdh
, "sd_blocksize", &fnum
, sizeof(s32
),
5449 &bus
->blocksize
, sizeof(s32
), false) != BCME_OK
) {
5451 DHD_ERROR(("%s: fail on %s get\n", __func__
, "sd_blocksize"));
5453 DHD_INFO(("%s: Initial value for %s is %d\n",
5454 __func__
, "sd_blocksize", bus
->blocksize
));
5456 bus
->roundup
= min(max_roundup
, bus
->blocksize
);
5458 /* Query if bus module supports packet chaining,
5459 default to use if supported */
5460 if (bcmsdh_iovar_op(sdh
, "sd_rxchain", NULL
, 0,
5461 &bus
->sd_rxchain
, sizeof(s32
),
5462 false) != BCME_OK
) {
5463 bus
->sd_rxchain
= false;
5465 DHD_INFO(("%s: bus module (through bcmsdh API) %s chaining\n",
5467 (bus
->sd_rxchain
? "supports" : "does not support")));
5469 bus
->use_rxchain
= (bool) bus
->sd_rxchain
;
5475 dhd_bus_download_firmware(struct dhd_bus
*bus
, char *fw_path
, char *nv_path
)
5478 bus
->fw_path
= fw_path
;
5479 bus
->nv_path
= nv_path
;
5481 ret
= dhdsdio_download_firmware(bus
, bus
->sdh
);
5487 dhdsdio_download_firmware(struct dhd_bus
*bus
, void *sdh
)
5491 /* Download the firmware */
5492 dhdsdio_clkctl(bus
, CLK_AVAIL
, false);
5494 ret
= _dhdsdio_download_firmware(bus
) == 0;
5496 dhdsdio_clkctl(bus
, CLK_SDONLY
, false);
5501 /* Detach and free everything */
5502 static void dhdsdio_release(dhd_bus_t
*bus
)
5504 DHD_TRACE(("%s: Enter\n", __func__
));
5507 /* De-register interrupt handler */
5508 bcmsdh_intr_disable(bus
->sdh
);
5509 bcmsdh_intr_dereg(bus
->sdh
);
5513 dhdsdio_release_dongle(bus
);
5515 dhd_detach(bus
->dhd
);
5519 dhdsdio_release_malloc(bus
);
5524 DHD_TRACE(("%s: Disconnected\n", __func__
));
5527 static void dhdsdio_release_malloc(dhd_bus_t
*bus
)
5529 DHD_TRACE(("%s: Enter\n", __func__
));
5531 if (bus
->dhd
&& bus
->dhd
->dongle_reset
)
5536 bus
->rxctl
= bus
->rxbuf
= NULL
;
5540 kfree(bus
->databuf
);
5541 bus
->databuf
= NULL
;
5544 static void dhdsdio_release_dongle(dhd_bus_t
*bus
)
5546 DHD_TRACE(("%s: Enter\n", __func__
));
5548 if (bus
->dhd
&& bus
->dhd
->dongle_reset
)
5552 dhdsdio_clkctl(bus
, CLK_AVAIL
, false);
5553 #if !defined(BCMLXSDMMC)
5554 si_watchdog(bus
->sih
, 4);
5555 #endif /* !defined(BCMLXSDMMC) */
5556 dhdsdio_clkctl(bus
, CLK_NONE
, false);
5557 si_detach(bus
->sih
);
5558 if (bus
->vars
&& bus
->varsz
)
5563 DHD_TRACE(("%s: Disconnected\n", __func__
));
5566 static void dhdsdio_disconnect(void *ptr
)
5568 dhd_bus_t
*bus
= (dhd_bus_t
*)ptr
;
5570 DHD_TRACE(("%s: Enter\n", __func__
));
5574 dhdsdio_release(bus
);
5577 DHD_TRACE(("%s: Disconnected\n", __func__
));
5580 /* Register/Unregister functions are called by the main DHD entry
5581 * point (e.g. module insertion) to link with the bus driver, in
5582 * order to look for or await the device.
5585 static bcmsdh_driver_t dhd_sdio
= {
5590 int dhd_bus_register(void)
5592 DHD_TRACE(("%s: Enter\n", __func__
));
5594 return bcmsdh_register(&dhd_sdio
);
5597 void dhd_bus_unregister(void)
5599 DHD_TRACE(("%s: Enter\n", __func__
));
5601 bcmsdh_unregister();
5604 #ifdef BCMEMBEDIMAGE
5605 static int dhdsdio_download_code_array(struct dhd_bus
*bus
)
5610 DHD_INFO(("%s: download embedded firmware...\n", __func__
));
5612 /* Download image */
5613 while ((offset
+ MEMBLOCK
) < sizeof(dlarray
)) {
5615 dhdsdio_membytes(bus
, true, offset
, dlarray
+ offset
,
5618 DHD_ERROR(("%s: error %d on writing %d membytes at "
5620 __func__
, bcmerror
, MEMBLOCK
, offset
));
5627 if (offset
< sizeof(dlarray
)) {
5628 bcmerror
= dhdsdio_membytes(bus
, true, offset
,
5630 sizeof(dlarray
) - offset
);
5632 DHD_ERROR(("%s: error %d on writing %d membytes at "
5633 "0x%08x\n", __func__
, bcmerror
,
5634 sizeof(dlarray
) - offset
, offset
));
5639 /* Upload and compare the downloaded code */
5641 unsigned char *ularray
;
5643 ularray
= kmalloc(bus
->ramsize
, GFP_ATOMIC
);
5645 bcmerror
= BCME_NOMEM
;
5648 /* Upload image to verify downloaded contents. */
5650 memset(ularray
, 0xaa, bus
->ramsize
);
5651 while ((offset
+ MEMBLOCK
) < sizeof(dlarray
)) {
5653 dhdsdio_membytes(bus
, false, offset
,
5654 ularray
+ offset
, MEMBLOCK
);
5656 DHD_ERROR(("%s: error %d on reading %d membytes"
5658 __func__
, bcmerror
, MEMBLOCK
, offset
));
5665 if (offset
< sizeof(dlarray
)) {
5666 bcmerror
= dhdsdio_membytes(bus
, false, offset
,
5668 sizeof(dlarray
) - offset
);
5670 DHD_ERROR(("%s: error %d on reading %d membytes at 0x%08x\n",
5672 sizeof(dlarray
) - offset
, offset
));
5677 if (memcmp(dlarray
, ularray
, sizeof(dlarray
))) {
5678 DHD_ERROR(("%s: Downloaded image is corrupted.\n",
5683 DHD_ERROR(("%s: Download/Upload/Compare succeeded.\n",
5688 #endif /* DHD_DEBUG */
5693 #endif /* BCMEMBEDIMAGE */
5695 static int dhdsdio_download_code_file(struct dhd_bus
*bus
, char *fw_path
)
5701 u8
*memblock
= NULL
, *memptr
;
5703 DHD_INFO(("%s: download firmware %s\n", __func__
, fw_path
));
5705 image
= dhd_os_open_image(fw_path
);
5709 memptr
= memblock
= kmalloc(MEMBLOCK
+ DHD_SDALIGN
, GFP_ATOMIC
);
5710 if (memblock
== NULL
) {
5711 DHD_ERROR(("%s: Failed to allocate memory %d bytes\n",
5712 __func__
, MEMBLOCK
));
5715 if ((u32
)(unsigned long)memblock
% DHD_SDALIGN
)
5717 (DHD_SDALIGN
- ((u32
)(unsigned long)memblock
% DHD_SDALIGN
));
5719 /* Download image */
5721 dhd_os_get_image_block((char *)memptr
, MEMBLOCK
, image
))) {
5722 bcmerror
= dhdsdio_membytes(bus
, true, offset
, memptr
, len
);
5724 DHD_ERROR(("%s: error %d on writing %d membytes at "
5725 "0x%08x\n", __func__
, bcmerror
, MEMBLOCK
, offset
));
5736 dhd_os_close_image(image
);
5742 * ProcessVars:Takes a buffer of "<var>=<value>\n" lines read from a file
5743 * and ending in a NUL.
5744 * Removes carriage returns, empty lines, comment lines, and converts
5746 * Shortens buffer as needed and pads with NULs. End of buffer is marked
5750 static uint
process_nvram_vars(char *varbuf
, uint len
)
5759 findNewline
= false;
5762 for (n
= 0; n
< len
; n
++) {
5765 if (varbuf
[n
] == '\r')
5767 if (findNewline
&& varbuf
[n
] != '\n')
5769 findNewline
= false;
5770 if (varbuf
[n
] == '#') {
5774 if (varbuf
[n
] == '\n') {
5784 buf_len
= dp
- varbuf
;
5786 while (dp
< varbuf
+ n
)
5793 EXAMPLE: nvram_array
5796 Use carriage return at the end of each assignment,
5797 and an empty string with
5798 carriage return at the end of array.
5801 unsigned char nvram_array[] = {"name1=value1\n",
5802 "name2=value2\n", "\n"};
5803 Hex values start with 0x, and mac addr format: xx:xx:xx:xx:xx:xx.
5805 Search "EXAMPLE: nvram_array" to see how the array is activated.
5808 void dhd_bus_set_nvram_params(struct dhd_bus
*bus
, const char *nvram_params
)
5810 bus
->nvram_params
= nvram_params
;
5813 static int dhdsdio_download_nvram(struct dhd_bus
*bus
)
5818 char *memblock
= NULL
;
5821 bool nvram_file_exists
;
5823 nv_path
= bus
->nv_path
;
5825 nvram_file_exists
= ((nv_path
!= NULL
) && (nv_path
[0] != '\0'));
5826 if (!nvram_file_exists
&& (bus
->nvram_params
== NULL
))
5829 if (nvram_file_exists
) {
5830 image
= dhd_os_open_image(nv_path
);
5835 memblock
= kmalloc(MEMBLOCK
, GFP_ATOMIC
);
5836 if (memblock
== NULL
) {
5837 DHD_ERROR(("%s: Failed to allocate memory %d bytes\n",
5838 __func__
, MEMBLOCK
));
5842 /* Download variables */
5843 if (nvram_file_exists
) {
5844 len
= dhd_os_get_image_block(memblock
, MEMBLOCK
, image
);
5846 len
= strlen(bus
->nvram_params
);
5847 ASSERT(len
<= MEMBLOCK
);
5850 memcpy(memblock
, bus
->nvram_params
, len
);
5853 if (len
> 0 && len
< MEMBLOCK
) {
5854 bufp
= (char *)memblock
;
5856 len
= process_nvram_vars(bufp
, len
);
5860 bcmerror
= dhdsdio_downloadvars(bus
, memblock
, len
+ 1);
5862 DHD_ERROR(("%s: error downloading vars: %d\n",
5863 __func__
, bcmerror
));
5866 DHD_ERROR(("%s: error reading nvram file: %d\n",
5868 bcmerror
= BCME_SDIO_ERROR
;
5875 dhd_os_close_image(image
);
5880 static int _dhdsdio_download_firmware(struct dhd_bus
*bus
)
5884 bool embed
= false; /* download embedded firmware */
5885 bool dlok
= false; /* download firmware succeeded */
5887 /* Out immediately if no image to download */
5888 if ((bus
->fw_path
== NULL
) || (bus
->fw_path
[0] == '\0')) {
5889 #ifdef BCMEMBEDIMAGE
5896 /* Keep arm in reset */
5897 if (dhdsdio_download_state(bus
, true)) {
5898 DHD_ERROR(("%s: error placing ARM core in reset\n", __func__
));
5902 /* External image takes precedence if specified */
5903 if ((bus
->fw_path
!= NULL
) && (bus
->fw_path
[0] != '\0')) {
5904 if (dhdsdio_download_code_file(bus
, bus
->fw_path
)) {
5905 DHD_ERROR(("%s: dongle image file download failed\n",
5907 #ifdef BCMEMBEDIMAGE
5917 #ifdef BCMEMBEDIMAGE
5919 if (dhdsdio_download_code_array(bus
)) {
5920 DHD_ERROR(("%s: dongle image array download failed\n",
5929 DHD_ERROR(("%s: dongle image download failed\n", __func__
));
5933 /* EXAMPLE: nvram_array */
5934 /* If a valid nvram_arry is specified as above, it can be passed
5936 /* dhd_bus_set_nvram_params(bus, (char *)&nvram_array); */
5938 /* External nvram takes precedence if specified */
5939 if (dhdsdio_download_nvram(bus
)) {
5940 DHD_ERROR(("%s: dongle nvram file download failed\n",
5944 /* Take arm out of reset */
5945 if (dhdsdio_download_state(bus
, false)) {
5946 DHD_ERROR(("%s: error getting out of ARM core reset\n",
5958 dhd_bcmsdh_recv_buf(dhd_bus_t
*bus
, u32 addr
, uint fn
, uint flags
,
5959 u8
*buf
, uint nbytes
, struct sk_buff
*pkt
,
5960 bcmsdh_cmplt_fn_t complete
, void *handle
)
5964 /* 4329: GSPI check */
5966 bcmsdh_recv_buf(bus
->sdh
, addr
, fn
, flags
, buf
, nbytes
, pkt
,
5972 dhd_bcmsdh_send_buf(dhd_bus_t
*bus
, u32 addr
, uint fn
, uint flags
,
5973 u8
*buf
, uint nbytes
, struct sk_buff
*pkt
,
5974 bcmsdh_cmplt_fn_t complete
, void *handle
)
5976 return bcmsdh_send_buf
5977 (bus
->sdh
, addr
, fn
, flags
, buf
, nbytes
, pkt
, complete
,
5981 uint
dhd_bus_chip(struct dhd_bus
*bus
)
5983 ASSERT(bus
->sih
!= NULL
);
5984 return bus
->sih
->chip
;
5987 void *dhd_bus_pub(struct dhd_bus
*bus
)
5992 void *dhd_bus_txq(struct dhd_bus
*bus
)
5997 uint
dhd_bus_hdrlen(struct dhd_bus
*bus
)
5999 return SDPCM_HDRLEN
;
6002 int dhd_bus_devreset(dhd_pub_t
*dhdp
, u8 flag
)
6010 if (!bus
->dhd
->dongle_reset
) {
6011 /* Expect app to have torn down any
6012 connection before calling */
6013 /* Stop the bus, disable F2 */
6014 dhd_bus_stop(bus
, false);
6016 /* Clean tx/rx buffer pointers,
6017 detach from the dongle */
6018 dhdsdio_release_dongle(bus
);
6020 bus
->dhd
->dongle_reset
= true;
6021 bus
->dhd
->up
= false;
6023 DHD_TRACE(("%s: WLAN OFF DONE\n", __func__
));
6024 /* App can now remove power from device */
6026 bcmerror
= BCME_SDIO_ERROR
;
6028 /* App must have restored power to device before calling */
6030 DHD_TRACE(("\n\n%s: == WLAN ON ==\n", __func__
));
6032 if (bus
->dhd
->dongle_reset
) {
6034 /* Reset SD client */
6035 bcmsdh_reset(bus
->sdh
);
6037 /* Attempt to re-attach & download */
6038 if (dhdsdio_probe_attach(bus
, bus
->sdh
,
6039 (u32
*) SI_ENUM_BASE
,
6041 /* Attempt to download binary to the dongle */
6042 if (dhdsdio_probe_init
6044 && dhdsdio_download_firmware(bus
,
6047 /* Re-init bus, enable F2 transfer */
6048 dhd_bus_init((dhd_pub_t
*) bus
->dhd
,
6051 #if defined(OOB_INTR_ONLY)
6052 dhd_enable_oob_intr(bus
, true);
6053 #endif /* defined(OOB_INTR_ONLY) */
6055 bus
->dhd
->dongle_reset
= false;
6056 bus
->dhd
->up
= true;
6058 DHD_TRACE(("%s: WLAN ON DONE\n",
6061 bcmerror
= BCME_SDIO_ERROR
;
6063 bcmerror
= BCME_SDIO_ERROR
;
6065 bcmerror
= BCME_NOTDOWN
;
6066 DHD_ERROR(("%s: Set DEVRESET=false invoked when device "
6067 "is on\n", __func__
));
6068 bcmerror
= BCME_SDIO_ERROR
;