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("$FreeBSD$");
24 #include <sys/param.h>
26 #include <sys/mutex.h>
28 #include <sys/kernel.h>
29 #include <sys/socket.h>
30 #include <sys/systm.h>
31 #include <sys/malloc.h>
32 #include <sys/queue.h>
33 #include <sys/taskqueue.h>
35 #include <sys/endian.h>
38 #include <net/ethernet.h>
39 #include <net/if_media.h>
41 #include <net80211/ieee80211_var.h>
42 #include <net80211/ieee80211_radiotap.h>
44 #include <dev/usb/usb.h>
45 #include <dev/usb/usbdi.h>
47 #include <dev/rtwn/if_rtwnvar.h>
48 #include <dev/rtwn/if_rtwn_debug.h>
50 #include <dev/rtwn/usb/rtwn_usb_var.h>
51 #include <dev/rtwn/usb/rtwn_usb_reg.h>
53 static int rtwn_do_request(struct rtwn_softc *,
54 struct usb_device_request *, void *);
55 static int rtwn_usb_read_region_1(struct rtwn_softc *,
56 uint16_t, uint8_t *, int);
59 #define R92C_REQ_REGS 0x05
62 rtwn_do_request(struct rtwn_softc *sc, struct usb_device_request *req,
65 struct rtwn_usb_softc *uc = RTWN_USB_SOFTC(sc);
69 RTWN_ASSERT_LOCKED(sc);
72 err = usbd_do_request_flags(uc->uc_udev, &sc->sc_mtx,
73 req, data, 0, NULL, 250 /* ms */);
74 if (err == USB_ERR_NORMAL_COMPLETION)
77 RTWN_DPRINTF(sc, RTWN_DEBUG_USB,
78 "%s: control request failed, %s (retries left: %d)\n",
79 __func__, usbd_errstr(err), ntries);
80 if (err == USB_ERR_NOT_CONFIGURED)
83 usb_pause_mtx(&sc->sc_mtx, hz / 100);
88 /* export for rtwn_fw_write_block() */
90 rtwn_usb_write_region_1(struct rtwn_softc *sc, uint16_t addr, uint8_t *buf,
93 usb_device_request_t req;
95 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
96 req.bRequest = R92C_REQ_REGS;
97 USETW(req.wValue, addr);
99 USETW(req.wLength, len);
100 return (rtwn_do_request(sc, &req, buf));
104 rtwn_usb_write_1(struct rtwn_softc *sc, uint16_t addr, uint8_t val)
106 return (rtwn_usb_write_region_1(sc, addr, &val, sizeof(val)));
110 rtwn_usb_write_2(struct rtwn_softc *sc, uint16_t addr, uint16_t val)
113 return (rtwn_usb_write_region_1(sc, addr, (uint8_t *)&val, sizeof(val)));
117 rtwn_usb_write_4(struct rtwn_softc *sc, uint16_t addr, uint32_t val)
120 return (rtwn_usb_write_region_1(sc, addr, (uint8_t *)&val, sizeof(val)));
124 rtwn_usb_read_region_1(struct rtwn_softc *sc, uint16_t addr, uint8_t *buf,
127 usb_device_request_t req;
129 req.bmRequestType = UT_READ_VENDOR_DEVICE;
130 req.bRequest = R92C_REQ_REGS;
131 USETW(req.wValue, addr);
132 USETW(req.wIndex, 0);
133 USETW(req.wLength, len);
134 return (rtwn_do_request(sc, &req, buf));
138 rtwn_usb_read_1(struct rtwn_softc *sc, uint16_t addr)
142 if (rtwn_usb_read_region_1(sc, addr, &val, 1) != 0)
148 rtwn_usb_read_2(struct rtwn_softc *sc, uint16_t addr)
152 if (rtwn_usb_read_region_1(sc, addr, (uint8_t *)&val, 2) != 0)
154 return (le16toh(val));
158 rtwn_usb_read_4(struct rtwn_softc *sc, uint16_t addr)
162 if (rtwn_usb_read_region_1(sc, addr, (uint8_t *)&val, 4) != 0)
164 return (le32toh(val));
168 rtwn_usb_delay(struct rtwn_softc *sc, int usec)
171 /* 1ms delay as default is too big. */
175 usb_pause_mtx(&sc->sc_mtx, msecs_to_ticks(usec / 1000));