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) 2015-2016 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("$FreeBSD$");
26 #include <sys/param.h>
28 #include <sys/mutex.h>
29 #include <sys/condvar.h>
31 #include <sys/kernel.h>
32 #include <sys/socket.h>
33 #include <sys/systm.h>
34 #include <sys/malloc.h>
35 #include <sys/queue.h>
36 #include <sys/taskqueue.h>
38 #include <sys/endian.h>
40 #include <dev/usb/usb.h>
41 #include <dev/usb/usbdi.h>
42 #include <dev/usb/usb_device.h>
45 #include <net/ethernet.h>
46 #include <net/if_media.h>
48 #include <net80211/ieee80211_var.h>
50 #include <dev/rtwn/if_rtwnvar.h>
51 #include <dev/rtwn/if_rtwn_debug.h>
53 #include <dev/rtwn/usb/rtwn_usb_var.h>
54 #include <dev/rtwn/usb/rtwn_usb_ep.h>
55 #include <dev/rtwn/usb/rtwn_usb_rx.h>
56 #include <dev/rtwn/usb/rtwn_usb_tx.h>
58 #include <dev/rtwn/rtl8192c/usb/r92cu_reg.h>
61 static struct usb_config rtwn_config[RTWN_N_TRANSFER] = {
64 .endpoint = UE_ADDR_ANY,
65 .direction = UE_DIR_IN,
66 .bufsize = RTWN_RXBUFSZ,
71 .callback = rtwn_bulk_rx_callback,
75 .endpoint = UE_ADDR_ANY,
76 .direction = UE_DIR_OUT,
77 .bufsize = RTWN_TXBUFSZ,
81 .force_short_xfer = 1,
83 .callback = rtwn_bulk_tx_callback,
84 .timeout = RTWN_TX_TIMEOUT, /* ms */
88 .endpoint = UE_ADDR_ANY,
89 .direction = UE_DIR_OUT,
90 .bufsize = RTWN_TXBUFSZ,
94 .force_short_xfer = 1,
96 .callback = rtwn_bulk_tx_callback,
97 .timeout = RTWN_TX_TIMEOUT, /* ms */
101 .endpoint = UE_ADDR_ANY,
102 .direction = UE_DIR_OUT,
103 .bufsize = RTWN_TXBUFSZ,
107 .force_short_xfer = 1
109 .callback = rtwn_bulk_tx_callback,
110 .timeout = RTWN_TX_TIMEOUT, /* ms */
112 [RTWN_BULK_TX_VO] = {
114 .endpoint = UE_ADDR_ANY,
115 .direction = UE_DIR_OUT,
116 .bufsize = RTWN_TXBUFSZ,
120 .force_short_xfer = 1
122 .callback = rtwn_bulk_tx_callback,
123 .timeout = RTWN_TX_TIMEOUT, /* ms */
128 rtwn_usb_setup_queues(struct rtwn_usb_softc *uc)
130 struct rtwn_softc *sc = &uc->uc_sc;
131 int hasnq, haslq, nqueues, nqpages, nrempages;
133 /* Get Tx queues to USB endpoints mapping. */
146 nqueues = 1 + hasnq + haslq;
148 /* Get the number of pages for each queue. */
149 nqpages = (sc->page_count - sc->npubqpages) / nqueues;
152 * The remaining pages are assigned to the high priority
155 nrempages = (sc->page_count - sc->npubqpages) % nqueues;
157 sc->nhqpages = nqpages + nrempages;
158 sc->nnqpages = (hasnq ? nqpages : 0);
159 sc->nlqpages = (haslq ? nqpages : 0);
163 rtwn_usb_setup_endpoints(struct rtwn_usb_softc *uc)
165 struct rtwn_softc *sc = &uc->uc_sc;
166 const uint8_t iface_index = RTWN_IFACE_INDEX;
167 struct usb_endpoint *ep, *ep_end;
168 uint8_t addr[RTWN_MAX_EPOUT];
171 /* Determine the number of bulk-out pipes. */
173 ep = uc->uc_udev->endpoints;
174 ep_end = uc->uc_udev->endpoints + uc->uc_udev->endpoints_max;
175 for (; ep != ep_end; ep++) {
178 if ((ep->edesc == NULL) || (ep->iface_index != iface_index))
181 eaddr = ep->edesc->bEndpointAddress;
182 RTWN_DPRINTF(sc, RTWN_DEBUG_USB,
183 "%s: endpoint: addr %u, direction %s\n", __func__,
184 UE_GET_ADDR(eaddr), UE_GET_DIR(eaddr) == UE_DIR_OUT ?
187 if (UE_GET_DIR(eaddr) == UE_DIR_OUT) {
188 if (uc->ntx == RTWN_MAX_EPOUT)
191 addr[uc->ntx++] = UE_GET_ADDR(eaddr);
194 if (uc->ntx == 0 || uc->ntx > RTWN_MAX_EPOUT) {
195 device_printf(sc->sc_dev,
196 "%s: invalid number of Tx bulk pipes (%d)\n", __func__,
201 /* NB: keep in sync with rtwn_dma_init(). */
202 rtwn_config[RTWN_BULK_TX_VO].endpoint = addr[0];
206 rtwn_config[RTWN_BULK_TX_BE].endpoint = addr[2];
207 rtwn_config[RTWN_BULK_TX_BK].endpoint = addr[2];
208 rtwn_config[RTWN_BULK_TX_VI].endpoint = addr[1];
211 rtwn_config[RTWN_BULK_TX_BE].endpoint = addr[1];
212 rtwn_config[RTWN_BULK_TX_BK].endpoint = addr[1];
213 rtwn_config[RTWN_BULK_TX_VI].endpoint = addr[0];
216 rtwn_config[RTWN_BULK_TX_BE].endpoint = addr[0];
217 rtwn_config[RTWN_BULK_TX_BK].endpoint = addr[0];
218 rtwn_config[RTWN_BULK_TX_VI].endpoint = addr[0];
221 KASSERT(0, ("unhandled number of endpoints %d\n", uc->ntx));
225 error = usbd_transfer_setup(uc->uc_udev, &iface_index,
226 uc->uc_xfer, rtwn_config, RTWN_N_TRANSFER, uc, &sc->sc_mtx);
228 device_printf(sc->sc_dev, "could not allocate USB transfers, "
229 "err=%s\n", usbd_errstr(error));
233 /* Assign pages for each queue (if not done). */
234 if (sc->nhqpages == 0 && sc->nnqpages == 0 && sc->nlqpages == 0)
235 rtwn_usb_setup_queues(uc);
241 rtwn_usb_get_qmap(struct rtwn_softc *sc)
243 struct rtwn_usb_softc *uc = RTWN_USB_SOFTC(sc);
247 return (R92C_TRXDMA_CTRL_QMAP_HQ);
249 return (R92C_TRXDMA_CTRL_QMAP_HQ_NQ);
251 return (R92C_TRXDMA_CTRL_QMAP_3EP);