1 /* $OpenBSD: if_urtwn.c,v 1.16 2011/02/10 17:26:40 jakemsr Exp $ */
4 * Copyright (c) 2010 Damien Bergamini <damien.bergamini@free.fr>
5 * Copyright (c) 2014 Kevin Lo <kevlo@FreeBSD.org>
6 * Copyright (c) 2016 Andriy Voskoboinyk <avos@FreeBSD.org>
8 * Permission to use, copy, modify, and distribute this software for any
9 * purpose with or without fee is hereby granted, provided that the above
10 * copyright notice and this permission notice appear in all copies.
12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
13 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
14 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
15 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
16 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
21 #include <sys/cdefs.h>
22 __FBSDID("$FreeBSD$");
24 #include <sys/param.h>
25 #include <sys/sysctl.h>
27 #include <sys/mutex.h>
29 #include <sys/kernel.h>
30 #include <sys/socket.h>
31 #include <sys/systm.h>
32 #include <sys/malloc.h>
33 #include <sys/module.h>
35 #include <sys/endian.h>
36 #include <sys/linker.h>
39 #include <machine/bus.h>
40 #include <machine/resource.h>
43 #include <dev/pci/pcireg.h>
44 #include <dev/pci/pcivar.h>
47 #include <net/ethernet.h>
48 #include <net/if_media.h>
50 #include <net80211/ieee80211_var.h>
52 #include <dev/rtwn/if_rtwnreg.h>
53 #include <dev/rtwn/if_rtwnvar.h>
54 #include <dev/rtwn/if_rtwn_nop.h>
55 #include <dev/rtwn/if_rtwn_debug.h>
57 #include <dev/rtwn/pci/rtwn_pci_var.h>
59 #include <dev/rtwn/pci/rtwn_pci_attach.h>
60 #include <dev/rtwn/pci/rtwn_pci_reg.h>
61 #include <dev/rtwn/pci/rtwn_pci_rx.h>
62 #include <dev/rtwn/pci/rtwn_pci_tx.h>
64 #include <dev/rtwn/rtl8192c/pci/r92ce_reg.h>
65 #include <dev/rtwn/rtl8192c/pci/r92ce_rx_desc.h>
68 static device_probe_t rtwn_pci_probe;
69 static device_attach_t rtwn_pci_attach;
70 static device_detach_t rtwn_pci_detach;
71 static device_shutdown_t rtwn_pci_shutdown;
72 static device_suspend_t rtwn_pci_suspend;
73 static device_resume_t rtwn_pci_resume;
75 static int rtwn_pci_alloc_rx_list(struct rtwn_softc *);
76 static void rtwn_pci_reset_rx_list(struct rtwn_softc *);
77 static void rtwn_pci_free_rx_list(struct rtwn_softc *);
78 static int rtwn_pci_alloc_tx_list(struct rtwn_softc *, int);
79 static void rtwn_pci_reset_tx_ring_stopped(struct rtwn_softc *, int);
80 static void rtwn_pci_reset_beacon_ring(struct rtwn_softc *, int);
81 static void rtwn_pci_reset_tx_list(struct rtwn_softc *,
82 struct ieee80211vap *, int);
83 static void rtwn_pci_free_tx_list(struct rtwn_softc *, int);
84 static void rtwn_pci_reset_lists(struct rtwn_softc *,
85 struct ieee80211vap *);
86 static int rtwn_pci_fw_write_block(struct rtwn_softc *,
87 const uint8_t *, uint16_t, int);
88 static uint16_t rtwn_pci_get_qmap(struct rtwn_softc *);
89 static void rtwn_pci_set_desc_addr(struct rtwn_softc *);
90 static void rtwn_pci_beacon_update_begin(struct rtwn_softc *,
91 struct ieee80211vap *);
92 static void rtwn_pci_beacon_update_end(struct rtwn_softc *,
93 struct ieee80211vap *);
94 static void rtwn_pci_attach_methods(struct rtwn_softc *);
97 static int matched_chip = RTWN_CHIP_MAX_PCI;
100 rtwn_pci_probe(device_t dev)
102 const struct rtwn_pci_ident *ident;
104 for (ident = rtwn_pci_ident_table; ident->name != NULL; ident++) {
105 if (pci_get_vendor(dev) == ident->vendor &&
106 pci_get_device(dev) == ident->device) {
107 matched_chip = ident->chip;
108 device_set_desc(dev, ident->name);
109 return (BUS_PROBE_DEFAULT);
116 rtwn_pci_alloc_rx_list(struct rtwn_softc *sc)
118 struct rtwn_pci_softc *pc = RTWN_PCI_SOFTC(sc);
119 struct rtwn_rx_ring *rx_ring = &pc->rx_ring;
120 struct rtwn_rx_data *rx_data;
124 /* Allocate Rx descriptors. */
125 size = sizeof(struct r92ce_rx_stat) * RTWN_PCI_RX_LIST_COUNT;
126 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0,
127 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
128 size, 1, size, 0, NULL, NULL, &rx_ring->desc_dmat);
130 device_printf(sc->sc_dev, "could not create rx desc DMA tag\n");
134 error = bus_dmamem_alloc(rx_ring->desc_dmat, (void **)&rx_ring->desc,
135 BUS_DMA_NOWAIT | BUS_DMA_ZERO | BUS_DMA_COHERENT,
138 device_printf(sc->sc_dev, "could not allocate rx desc\n");
141 error = bus_dmamap_load(rx_ring->desc_dmat, rx_ring->desc_map,
142 rx_ring->desc, size, rtwn_pci_dma_map_addr, &rx_ring->paddr, 0);
144 device_printf(sc->sc_dev, "could not load rx desc DMA map\n");
147 bus_dmamap_sync(rx_ring->desc_dmat, rx_ring->desc_map,
148 BUS_DMASYNC_PREWRITE);
150 /* Create RX buffer DMA tag. */
151 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0,
152 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
153 MJUMPAGESIZE, 1, MJUMPAGESIZE, 0, NULL, NULL, &rx_ring->data_dmat);
155 device_printf(sc->sc_dev, "could not create rx buf DMA tag\n");
159 /* Allocate Rx buffers. */
160 for (i = 0; i < RTWN_PCI_RX_LIST_COUNT; i++) {
161 rx_data = &rx_ring->rx_data[i];
162 error = bus_dmamap_create(rx_ring->data_dmat, 0, &rx_data->map);
164 device_printf(sc->sc_dev,
165 "could not create rx buf DMA map\n");
169 rx_data->m = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR,
171 if (rx_data->m == NULL) {
172 device_printf(sc->sc_dev,
173 "could not allocate rx mbuf\n");
178 error = bus_dmamap_load(rx_ring->data_dmat, rx_data->map,
179 mtod(rx_data->m, void *), MJUMPAGESIZE,
180 rtwn_pci_dma_map_addr, &rx_data->paddr, BUS_DMA_NOWAIT);
182 device_printf(sc->sc_dev,
183 "could not load rx buf DMA map");
187 rtwn_pci_setup_rx_desc(pc, &rx_ring->desc[i], rx_data->paddr,
195 rtwn_pci_free_rx_list(sc);
200 rtwn_pci_reset_rx_list(struct rtwn_softc *sc)
202 struct rtwn_pci_softc *pc = RTWN_PCI_SOFTC(sc);
203 struct rtwn_rx_ring *rx_ring = &pc->rx_ring;
204 struct rtwn_rx_data *rx_data;
207 for (i = 0; i < RTWN_PCI_RX_LIST_COUNT; i++) {
208 rx_data = &rx_ring->rx_data[i];
209 rtwn_pci_setup_rx_desc(pc, &rx_ring->desc[i],
210 rx_data->paddr, MJUMPAGESIZE, i);
216 rtwn_pci_free_rx_list(struct rtwn_softc *sc)
218 struct rtwn_pci_softc *pc = RTWN_PCI_SOFTC(sc);
219 struct rtwn_rx_ring *rx_ring = &pc->rx_ring;
220 struct rtwn_rx_data *rx_data;
223 if (rx_ring->desc_dmat != NULL) {
224 if (rx_ring->desc != NULL) {
225 bus_dmamap_sync(rx_ring->desc_dmat,
227 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
228 bus_dmamap_unload(rx_ring->desc_dmat,
230 bus_dmamem_free(rx_ring->desc_dmat, rx_ring->desc,
232 rx_ring->desc = NULL;
234 bus_dma_tag_destroy(rx_ring->desc_dmat);
235 rx_ring->desc_dmat = NULL;
238 for (i = 0; i < RTWN_PCI_RX_LIST_COUNT; i++) {
239 rx_data = &rx_ring->rx_data[i];
241 if (rx_data->m != NULL) {
242 bus_dmamap_sync(rx_ring->data_dmat,
243 rx_data->map, BUS_DMASYNC_POSTREAD);
244 bus_dmamap_unload(rx_ring->data_dmat, rx_data->map);
248 bus_dmamap_destroy(rx_ring->data_dmat, rx_data->map);
251 if (rx_ring->data_dmat != NULL) {
252 bus_dma_tag_destroy(rx_ring->data_dmat);
253 rx_ring->data_dmat = NULL;
258 rtwn_pci_alloc_tx_list(struct rtwn_softc *sc, int qid)
260 struct rtwn_pci_softc *pc = RTWN_PCI_SOFTC(sc);
261 struct rtwn_tx_ring *tx_ring = &pc->tx_ring[qid];
265 size = sc->txdesc_len * RTWN_PCI_TX_LIST_COUNT;
266 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), PAGE_SIZE, 0,
267 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
268 size, 1, size, 0, NULL, NULL, &tx_ring->desc_dmat);
270 device_printf(sc->sc_dev, "could not create tx ring DMA tag\n");
274 error = bus_dmamem_alloc(tx_ring->desc_dmat, &tx_ring->desc,
275 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &tx_ring->desc_map);
277 device_printf(sc->sc_dev, "can't map tx ring DMA memory\n");
280 error = bus_dmamap_load(tx_ring->desc_dmat, tx_ring->desc_map,
281 tx_ring->desc, size, rtwn_pci_dma_map_addr, &tx_ring->paddr,
284 device_printf(sc->sc_dev, "could not load desc DMA map\n");
287 bus_dmamap_sync(tx_ring->desc_dmat, tx_ring->desc_map,
288 BUS_DMASYNC_PREWRITE);
290 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0,
291 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
292 MJUMPAGESIZE, 1, MJUMPAGESIZE, 0, NULL, NULL, &tx_ring->data_dmat);
294 device_printf(sc->sc_dev, "could not create tx buf DMA tag\n");
298 for (i = 0; i < RTWN_PCI_TX_LIST_COUNT; i++) {
299 struct rtwn_tx_data *tx_data = &tx_ring->tx_data[i];
300 void *tx_desc = (uint8_t *)tx_ring->desc + sc->txdesc_len * i;
301 uint32_t next_desc_addr = tx_ring->paddr +
302 sc->txdesc_len * ((i + 1) % RTWN_PCI_TX_LIST_COUNT);
304 rtwn_pci_setup_tx_desc(pc, tx_desc, next_desc_addr);
306 error = bus_dmamap_create(tx_ring->data_dmat, 0, &tx_data->map);
308 device_printf(sc->sc_dev,
309 "could not create tx buf DMA map\n");
318 rtwn_pci_free_tx_list(sc, qid);
323 rtwn_pci_reset_tx_ring_stopped(struct rtwn_softc *sc, int qid)
325 struct rtwn_pci_softc *pc = RTWN_PCI_SOFTC(sc);
326 struct rtwn_tx_ring *ring = &pc->tx_ring[qid];
329 for (i = 0; i < RTWN_PCI_TX_LIST_COUNT; i++) {
330 struct rtwn_tx_data *data = &ring->tx_data[i];
331 void *desc = (uint8_t *)ring->desc + sc->txdesc_len * i;
333 rtwn_pci_copy_tx_desc(pc, desc, NULL);
335 if (data->m != NULL) {
336 bus_dmamap_sync(ring->data_dmat, data->map,
337 BUS_DMASYNC_POSTWRITE);
338 bus_dmamap_unload(ring->data_dmat, data->map);
342 if (data->ni != NULL) {
343 ieee80211_free_node(data->ni);
348 bus_dmamap_sync(ring->desc_dmat, ring->desc_map,
349 BUS_DMASYNC_POSTWRITE);
351 sc->qfullmsk &= ~(1 << qid);
353 ring->last = ring->cur = 0;
357 * Clear entry 0 (or 1) in the beacon queue (other are not used).
360 rtwn_pci_reset_beacon_ring(struct rtwn_softc *sc, int id)
362 struct rtwn_pci_softc *pc = RTWN_PCI_SOFTC(sc);
363 struct rtwn_tx_ring *ring = &pc->tx_ring[RTWN_PCI_BEACON_QUEUE];
364 struct rtwn_tx_data *data = &ring->tx_data[id];
365 struct rtwn_tx_desc_common *txd = (struct rtwn_tx_desc_common *)
366 ((uint8_t *)ring->desc + id * sc->txdesc_len);
368 bus_dmamap_sync(ring->desc_dmat, ring->desc_map, BUS_DMASYNC_POSTREAD);
369 if (txd->flags0 & RTWN_FLAGS0_OWN) {
371 txd->flags0 &= ~RTWN_FLAGS0_OWN;
372 bus_dmamap_sync(ring->desc_dmat, ring->desc_map,
373 BUS_DMASYNC_PREWRITE);
376 bus_dmamap_sync(ring->data_dmat, data->map,
377 BUS_DMASYNC_POSTWRITE);
378 bus_dmamap_unload(ring->data_dmat, data->map);
383 * Drop stale entries from Tx ring before the vap will be deleted.
384 * In case if vap is NULL just free everything and reset cur / last pointers.
387 rtwn_pci_reset_tx_list(struct rtwn_softc *sc, struct ieee80211vap *vap,
393 if (qid != RTWN_PCI_BEACON_QUEUE) {
395 * Device was stopped; just clear all entries.
397 rtwn_pci_reset_tx_ring_stopped(sc, qid);
399 for (i = 0; i < RTWN_PORT_COUNT; i++)
400 rtwn_pci_reset_beacon_ring(sc, i);
402 } else if (qid == RTWN_PCI_BEACON_QUEUE &&
403 (vap->iv_opmode == IEEE80211_M_HOSTAP ||
404 vap->iv_opmode == IEEE80211_M_IBSS)) {
405 struct rtwn_vap *uvp = RTWN_VAP(vap);
407 rtwn_pci_reset_beacon_ring(sc, uvp->id);
409 struct rtwn_pci_softc *pc = RTWN_PCI_SOFTC(sc);
410 struct rtwn_tx_ring *ring = &pc->tx_ring[qid];
412 for (i = 0; i < RTWN_PCI_TX_LIST_COUNT; i++) {
413 struct rtwn_tx_data *data = &ring->tx_data[i];
414 if (data->ni != NULL && data->ni->ni_vap == vap) {
416 * NB: if some vap is still running
417 * rtwn_pci_tx_done() will free the mbuf;
418 * otherwise, rtwn_stop() will reset all rings
419 * after device shutdown.
421 ieee80211_free_node(data->ni);
429 rtwn_pci_free_tx_list(struct rtwn_softc *sc, int qid)
431 struct rtwn_pci_softc *pc = RTWN_PCI_SOFTC(sc);
432 struct rtwn_tx_ring *tx_ring = &pc->tx_ring[qid];
433 struct rtwn_tx_data *tx_data;
436 if (tx_ring->desc_dmat != NULL) {
437 if (tx_ring->desc != NULL) {
438 bus_dmamap_sync(tx_ring->desc_dmat,
439 tx_ring->desc_map, BUS_DMASYNC_POSTWRITE);
440 bus_dmamap_unload(tx_ring->desc_dmat,
442 bus_dmamem_free(tx_ring->desc_dmat, tx_ring->desc,
445 bus_dma_tag_destroy(tx_ring->desc_dmat);
448 for (i = 0; i < RTWN_PCI_TX_LIST_COUNT; i++) {
449 tx_data = &tx_ring->tx_data[i];
451 if (tx_data->m != NULL) {
452 bus_dmamap_sync(tx_ring->data_dmat, tx_data->map,
453 BUS_DMASYNC_POSTWRITE);
454 bus_dmamap_unload(tx_ring->data_dmat, tx_data->map);
459 if (tx_ring->data_dmat != NULL) {
460 bus_dma_tag_destroy(tx_ring->data_dmat);
461 tx_ring->data_dmat = NULL;
464 sc->qfullmsk &= ~(1 << qid);
466 tx_ring->last = tx_ring->cur = 0;
470 rtwn_pci_reset_lists(struct rtwn_softc *sc, struct ieee80211vap *vap)
474 for (i = 0; i < RTWN_PCI_NTXQUEUES; i++)
475 rtwn_pci_reset_tx_list(sc, vap, i);
479 rtwn_pci_reset_rx_list(sc);
484 rtwn_pci_fw_write_block(struct rtwn_softc *sc, const uint8_t *buf,
485 uint16_t reg, int mlen)
489 for (i = 0; i < mlen; i++)
490 rtwn_pci_write_1(sc, reg++, buf[i]);
492 /* NB: cannot fail */
497 rtwn_pci_get_qmap(struct rtwn_softc *sc)
499 struct rtwn_pci_softc *pc = RTWN_PCI_SOFTC(sc);
501 KASSERT(pc->pc_qmap != 0, ("%s: qmap is not set!\n", __func__));
503 return (pc->pc_qmap);
507 rtwn_pci_set_desc_addr(struct rtwn_softc *sc)
509 struct rtwn_pci_softc *pc = RTWN_PCI_SOFTC(sc);
511 RTWN_DPRINTF(sc, RTWN_DEBUG_RESET, "%s: addresses:\n"
512 "bk: %08jX, be: %08jX, vi: %08jX, vo: %08jX\n"
513 "bcn: %08jX, mgt: %08jX, high: %08jX, rx: %08jX\n",
514 __func__, (uintmax_t)pc->tx_ring[RTWN_PCI_BK_QUEUE].paddr,
515 (uintmax_t)pc->tx_ring[RTWN_PCI_BE_QUEUE].paddr,
516 (uintmax_t)pc->tx_ring[RTWN_PCI_VI_QUEUE].paddr,
517 (uintmax_t)pc->tx_ring[RTWN_PCI_VO_QUEUE].paddr,
518 (uintmax_t)pc->tx_ring[RTWN_PCI_BEACON_QUEUE].paddr,
519 (uintmax_t)pc->tx_ring[RTWN_PCI_MGNT_QUEUE].paddr,
520 (uintmax_t)pc->tx_ring[RTWN_PCI_HIGH_QUEUE].paddr,
521 (uintmax_t)pc->rx_ring.paddr);
523 /* Set Tx Configuration Register. */
524 rtwn_pci_write_4(sc, R92C_TCR, pc->tcr);
526 /* Configure Tx DMA. */
527 rtwn_pci_write_4(sc, R92C_BKQ_DESA,
528 pc->tx_ring[RTWN_PCI_BK_QUEUE].paddr);
529 rtwn_pci_write_4(sc, R92C_BEQ_DESA,
530 pc->tx_ring[RTWN_PCI_BE_QUEUE].paddr);
531 rtwn_pci_write_4(sc, R92C_VIQ_DESA,
532 pc->tx_ring[RTWN_PCI_VI_QUEUE].paddr);
533 rtwn_pci_write_4(sc, R92C_VOQ_DESA,
534 pc->tx_ring[RTWN_PCI_VO_QUEUE].paddr);
535 rtwn_pci_write_4(sc, R92C_BCNQ_DESA,
536 pc->tx_ring[RTWN_PCI_BEACON_QUEUE].paddr);
537 rtwn_pci_write_4(sc, R92C_MGQ_DESA,
538 pc->tx_ring[RTWN_PCI_MGNT_QUEUE].paddr);
539 rtwn_pci_write_4(sc, R92C_HQ_DESA,
540 pc->tx_ring[RTWN_PCI_HIGH_QUEUE].paddr);
542 /* Configure Rx DMA. */
543 rtwn_pci_write_4(sc, R92C_RX_DESA, pc->rx_ring.paddr);
547 rtwn_pci_beacon_update_begin(struct rtwn_softc *sc, struct ieee80211vap *vap)
549 struct rtwn_vap *rvp = RTWN_VAP(vap);
551 RTWN_ASSERT_LOCKED(sc);
553 rtwn_beacon_enable(sc, rvp->id, 0);
557 rtwn_pci_beacon_update_end(struct rtwn_softc *sc, struct ieee80211vap *vap)
559 struct rtwn_vap *rvp = RTWN_VAP(vap);
561 RTWN_ASSERT_LOCKED(sc);
563 if (rvp->curr_mode != R92C_MSR_NOLINK)
564 rtwn_beacon_enable(sc, rvp->id, 1);
568 rtwn_pci_attach_methods(struct rtwn_softc *sc)
570 sc->sc_write_1 = rtwn_pci_write_1;
571 sc->sc_write_2 = rtwn_pci_write_2;
572 sc->sc_write_4 = rtwn_pci_write_4;
573 sc->sc_read_1 = rtwn_pci_read_1;
574 sc->sc_read_2 = rtwn_pci_read_2;
575 sc->sc_read_4 = rtwn_pci_read_4;
576 sc->sc_delay = rtwn_pci_delay;
577 sc->sc_tx_start = rtwn_pci_tx_start;
578 sc->sc_reset_lists = rtwn_pci_reset_lists;
579 sc->sc_abort_xfers = rtwn_nop_softc;
580 sc->sc_fw_write_block = rtwn_pci_fw_write_block;
581 sc->sc_get_qmap = rtwn_pci_get_qmap;
582 sc->sc_set_desc_addr = rtwn_pci_set_desc_addr;
583 sc->sc_drop_incorrect_tx = rtwn_nop_softc;
584 sc->sc_beacon_update_begin = rtwn_pci_beacon_update_begin;
585 sc->sc_beacon_update_end = rtwn_pci_beacon_update_end;
586 sc->sc_beacon_unload = rtwn_pci_reset_beacon_ring;
588 sc->bcn_check_interval = 25000;
592 rtwn_pci_attach(device_t dev)
594 struct rtwn_pci_softc *pc = device_get_softc(dev);
595 struct rtwn_softc *sc = &pc->pc_sc;
596 struct ieee80211com *ic = &sc->sc_ic;
598 int cap_off, i, error, rid;
600 if (matched_chip >= RTWN_CHIP_MAX_PCI)
604 * Get the offset of the PCI Express Capability Structure in PCI
605 * Configuration Space.
607 error = pci_find_cap(dev, PCIY_EXPRESS, &cap_off);
609 device_printf(dev, "PCIe capability structure not found!\n");
613 /* Enable bus-mastering. */
614 pci_enable_busmaster(dev);
617 pc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
619 if (pc->mem == NULL) {
620 device_printf(dev, "can't map mem space\n");
623 pc->pc_st = rman_get_bustag(pc->mem);
624 pc->pc_sh = rman_get_bushandle(pc->mem);
626 /* Install interrupt handler. */
628 if (pci_alloc_msi(dev, &rid) == 0)
632 pc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE |
633 (rid != 0 ? 0 : RF_SHAREABLE));
634 if (pc->irq == NULL) {
635 device_printf(dev, "can't map interrupt\n");
639 /* Disable PCIe Active State Power Management (ASPM). */
640 lcsr = pci_read_config(dev, cap_off + PCIER_LINK_CTL, 4);
641 lcsr &= ~PCIEM_LINK_CTL_ASPMC;
642 pci_write_config(dev, cap_off + PCIER_LINK_CTL, lcsr, 4);
645 ic->ic_name = device_get_nameunit(dev);
647 /* Need to be initialized early. */
648 rtwn_sysctlattach(sc);
649 mtx_init(&sc->sc_mtx, ic->ic_name, MTX_NETWORK_LOCK, MTX_DEF);
651 rtwn_pci_attach_methods(sc);
652 /* XXX something similar to USB_GET_DRIVER_INFO() */
653 rtwn_pci_attach_private(pc, matched_chip);
655 /* Allocate Tx/Rx buffers. */
656 error = rtwn_pci_alloc_rx_list(sc);
659 "could not allocate Rx buffers, error %d\n",
663 for (i = 0; i < RTWN_PCI_NTXQUEUES; i++) {
664 error = rtwn_pci_alloc_tx_list(sc, i);
667 "could not allocate Tx buffers, error %d\n",
673 /* Generic attach. */
674 error = rtwn_attach(sc);
679 * Hook our interrupt after all initialization is complete.
681 error = bus_setup_intr(dev, pc->irq, INTR_TYPE_NET | INTR_MPSAFE,
682 NULL, rtwn_pci_intr, sc, &pc->pc_ih);
684 device_printf(dev, "can't establish interrupt, error %d\n",
692 rtwn_pci_detach(dev); /* failure */
697 rtwn_pci_detach(device_t dev)
699 struct rtwn_pci_softc *pc = device_get_softc(dev);
700 struct rtwn_softc *sc = &pc->pc_sc;
703 /* Generic detach. */
706 /* Uninstall interrupt handler. */
707 if (pc->irq != NULL) {
708 bus_teardown_intr(dev, pc->irq, pc->pc_ih);
709 bus_release_resource(dev, SYS_RES_IRQ, rman_get_rid(pc->irq),
711 pci_release_msi(dev);
714 /* Free Tx/Rx buffers. */
715 for (i = 0; i < RTWN_PCI_NTXQUEUES; i++)
716 rtwn_pci_free_tx_list(sc, i);
717 rtwn_pci_free_rx_list(sc);
720 bus_release_resource(dev, SYS_RES_MEMORY,
721 rman_get_rid(pc->mem), pc->mem);
723 rtwn_detach_private(sc);
724 mtx_destroy(&sc->sc_mtx);
730 rtwn_pci_shutdown(device_t self)
732 struct rtwn_pci_softc *pc = device_get_softc(self);
734 ieee80211_stop_all(&pc->pc_sc.sc_ic);
739 rtwn_pci_suspend(device_t self)
741 struct rtwn_pci_softc *pc = device_get_softc(self);
743 rtwn_suspend(&pc->pc_sc);
749 rtwn_pci_resume(device_t self)
751 struct rtwn_pci_softc *pc = device_get_softc(self);
753 rtwn_resume(&pc->pc_sc);
758 static device_method_t rtwn_pci_methods[] = {
759 /* Device interface */
760 DEVMETHOD(device_probe, rtwn_pci_probe),
761 DEVMETHOD(device_attach, rtwn_pci_attach),
762 DEVMETHOD(device_detach, rtwn_pci_detach),
763 DEVMETHOD(device_shutdown, rtwn_pci_shutdown),
764 DEVMETHOD(device_suspend, rtwn_pci_suspend),
765 DEVMETHOD(device_resume, rtwn_pci_resume),
770 static driver_t rtwn_pci_driver = {
773 sizeof(struct rtwn_pci_softc)
776 static devclass_t rtwn_pci_devclass;
778 DRIVER_MODULE(rtwn_pci, pci, rtwn_pci_driver, rtwn_pci_devclass, NULL, NULL);
779 MODULE_VERSION(rtwn_pci, 1);
780 MODULE_DEPEND(rtwn_pci, pci, 1, 1, 1);
781 MODULE_DEPEND(rtwn_pci, wlan, 1, 1, 1);
782 MODULE_DEPEND(rtwn_pci, rtwn, 2, 2, 2);