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
63 rtwn_do_request(struct rtwn_softc *sc, struct usb_device_request *req,
66 struct rtwn_usb_softc *uc = RTWN_USB_SOFTC(sc);
70 RTWN_ASSERT_LOCKED(sc);
73 err = usbd_do_request_flags(uc->uc_udev, &sc->sc_mtx,
74 req, data, 0, NULL, 250 /* ms */);
75 if (err == USB_ERR_NORMAL_COMPLETION)
78 RTWN_DPRINTF(sc, RTWN_DEBUG_USB,
79 "%s: control request failed, %s (retries left: %d)\n",
80 __func__, usbd_errstr(err), ntries);
81 if (err == USB_ERR_NOT_CONFIGURED)
84 usb_pause_mtx(&sc->sc_mtx, hz / 100);
89 /* export for rtwn_fw_write_block() */
91 rtwn_usb_write_region_1(struct rtwn_softc *sc, uint16_t addr, uint8_t *buf,
94 usb_device_request_t req;
96 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
97 req.bRequest = R92C_REQ_REGS;
98 USETW(req.wValue, addr);
100 USETW(req.wLength, len);
101 return (rtwn_do_request(sc, &req, buf));
105 rtwn_usb_write_1(struct rtwn_softc *sc, uint16_t addr, uint8_t val)
107 return (rtwn_usb_write_region_1(sc, addr, &val, sizeof(val)));
111 rtwn_usb_write_2(struct rtwn_softc *sc, uint16_t addr, uint16_t val)
114 return (rtwn_usb_write_region_1(sc, addr, (uint8_t *)&val, sizeof(val)));
118 rtwn_usb_write_4(struct rtwn_softc *sc, uint16_t addr, uint32_t val)
121 return (rtwn_usb_write_region_1(sc, addr, (uint8_t *)&val, sizeof(val)));
125 rtwn_usb_read_region_1(struct rtwn_softc *sc, uint16_t addr, uint8_t *buf,
128 usb_device_request_t req;
130 req.bmRequestType = UT_READ_VENDOR_DEVICE;
131 req.bRequest = R92C_REQ_REGS;
132 USETW(req.wValue, addr);
133 USETW(req.wIndex, 0);
134 USETW(req.wLength, len);
135 return (rtwn_do_request(sc, &req, buf));
139 rtwn_usb_read_1(struct rtwn_softc *sc, uint16_t addr)
143 if (rtwn_usb_read_region_1(sc, addr, &val, 1) != 0)
149 rtwn_usb_read_2(struct rtwn_softc *sc, uint16_t addr)
153 if (rtwn_usb_read_region_1(sc, addr, (uint8_t *)&val, 2) != 0)
155 return (le16toh(val));
159 rtwn_usb_read_4(struct rtwn_softc *sc, uint16_t addr)
163 if (rtwn_usb_read_region_1(sc, addr, (uint8_t *)&val, 4) != 0)
165 return (le32toh(val));
169 rtwn_usb_delay(struct rtwn_softc *sc, int usec)
172 /* 1ms delay as default is too big. */
176 usb_pause_mtx(&sc->sc_mtx, msecs_to_ticks(usec / 1000));