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freebsd-dev/sys/dev/usb/if_upgt.c
Weongyo Jeong b3be9d15b4 Add Conexant/Intersil PrismGT SoftMAC wireless USB driver - upgt(4). 
This driver supports GW3887 based chipsets and works on
x86/powerpc/sparc64.  You need upgtfw kernel module before loading
upgt(4).  Please see the manpage.

Obtained from:	OpenBSD
2008-08-11 03:57:31 +00:00

2377 lines
63 KiB
C
Raw Blame History

/* $OpenBSD: if_upgt.c,v 1.35 2008/04/16 18:32:15 damien Exp $ */
/* $FreeBSD$ */
/*
* Copyright (c) 2007 Marcus Glocker <mglocker@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/endian.h>
#include <sys/firmware.h>
#include <sys/linker.h>
#include <sys/mbuf.h>
#include <sys/malloc.h>
#include <sys/module.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <sys/sysctl.h>
#include <net/if.h>
#include <net/if_arp.h>
#include <net/ethernet.h>
#include <net/if_dl.h>
#include <net/if_media.h>
#include <net/if_types.h>
#include <sys/bus.h>
#include <machine/bus.h>
#include <net80211/ieee80211_var.h>
#include <net80211/ieee80211_phy.h>
#include <net80211/ieee80211_radiotap.h>
#include <net80211/ieee80211_regdomain.h>
#include <net/bpf.h>
#include <dev/usb/usb.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usbdi_util.h>
#include <dev/usb/usbdivar.h>
#include "usbdevs.h"
#include <dev/usb/usb_ethersubr.h>
#include <dev/usb/if_upgtvar.h>
/*
* Driver for the USB PrismGT devices.
*
* For now just USB 2.0 devices with the GW3887 chipset are supported.
* The driver has been written based on the firmware version 2.13.1.0_LM87.
*
* TODO's:
* - MONITOR mode test.
* - Add HOSTAP mode.
* - Add IBSS mode.
* - Support the USB 1.0 devices (NET2280, ISL3880, ISL3886 chipsets).
*
* Parts of this driver has been influenced by reading the p54u driver
* written by Jean-Baptiste Note <jean-baptiste.note@m4x.org> and
* Sebastien Bourdeauducq <lekernel@prism54.org>.
*/
SYSCTL_NODE(_hw, OID_AUTO, upgt, CTLFLAG_RD, 0,
"USB PrismGT GW3887 driver parameters");
/*
* NB: normally `upgt_txbuf' value can be increased to maximum 6, mininum 1.
* However, we're using just 2 txbufs to protect packet losses in some cases
* so the performance was sacrificed that with this value its speed is about
* 2.1Mb/s.
*
* With setting txbuf value as 6, you can get full speed, 3.0Mb/s, of this
* device but sometimes you'd meet some packet losses then retransmision.
*/
static int upgt_txbuf = UPGT_TX_COUNT; /* # tx buffers to allocate */
SYSCTL_INT(_hw_upgt, OID_AUTO, txbuf, CTLFLAG_RW, &upgt_txbuf,
0, "tx buffers allocated");
TUNABLE_INT("hw.upgt.txbuf", &upgt_txbuf);
#ifdef UPGT_DEBUG
int upgt_debug = 0;
SYSCTL_INT(_hw_upgt, OID_AUTO, debug, CTLFLAG_RW, &upgt_debug,
0, "control debugging printfs");
TUNABLE_INT("hw.upgt.debug", &upgt_debug);
enum {
UPGT_DEBUG_XMIT = 0x00000001, /* basic xmit operation */
UPGT_DEBUG_RECV = 0x00000002, /* basic recv operation */
UPGT_DEBUG_RESET = 0x00000004, /* reset processing */
UPGT_DEBUG_INTR = 0x00000008, /* INTR */
UPGT_DEBUG_TX_PROC = 0x00000010, /* tx ISR proc */
UPGT_DEBUG_RX_PROC = 0x00000020, /* rx ISR proc */
UPGT_DEBUG_STATE = 0x00000040, /* 802.11 state transitions */
UPGT_DEBUG_STAT = 0x00000080, /* statistic */
UPGT_DEBUG_FW = 0x00000100, /* firmware */
UPGT_DEBUG_ANY = 0xffffffff
};
#define DPRINTF(sc, m, fmt, ...) do { \
if (sc->sc_debug & (m)) \
printf(fmt, __VA_ARGS__); \
} while (0)
#else
#define DPRINTF(sc, m, fmt, ...) do { \
(void) sc; \
} while (0)
#endif
/*
* Prototypes.
*/
static device_probe_t upgt_match;
static device_attach_t upgt_attach;
static device_detach_t upgt_detach;
static int upgt_alloc_tx(struct upgt_softc *);
static int upgt_alloc_rx(struct upgt_softc *);
static int upgt_alloc_cmd(struct upgt_softc *);
static int upgt_attach_hook(device_t);
static int upgt_device_reset(struct upgt_softc *);
static int upgt_bulk_xmit(struct upgt_softc *, struct upgt_data *,
usbd_pipe_handle, uint32_t *, int);
static int upgt_fw_verify(struct upgt_softc *);
static int upgt_mem_init(struct upgt_softc *);
static int upgt_fw_load(struct upgt_softc *);
static int upgt_fw_copy(const uint8_t *, char *, int);
static uint32_t upgt_crc32_le(const void *, size_t);
static void upgt_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
static void upgt_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
static int upgt_eeprom_read(struct upgt_softc *);
static int upgt_eeprom_parse(struct upgt_softc *);
static void upgt_eeprom_parse_hwrx(struct upgt_softc *, uint8_t *);
static void upgt_eeprom_parse_freq3(struct upgt_softc *, uint8_t *, int);
static void upgt_eeprom_parse_freq4(struct upgt_softc *, uint8_t *, int);
static void upgt_eeprom_parse_freq6(struct upgt_softc *, uint8_t *, int);
static uint32_t upgt_chksum_le(const uint32_t *, size_t);
static void upgt_tx_done(struct upgt_softc *, uint8_t *);
static void upgt_rx(struct upgt_softc *, uint8_t *, int);
static void upgt_init(void *);
static void upgt_init_locked(struct upgt_softc *);
static int upgt_ioctl(struct ifnet *, u_long, caddr_t);
static void upgt_start(struct ifnet *);
static int upgt_raw_xmit(struct ieee80211_node *, struct mbuf *,
const struct ieee80211_bpf_params *);
static void upgt_scan_start(struct ieee80211com *);
static void upgt_scan_end(struct ieee80211com *);
static void upgt_set_channel(struct ieee80211com *);
static struct ieee80211vap *upgt_vap_create(struct ieee80211com *,
const char name[IFNAMSIZ], int unit, int opmode,
int flags, const uint8_t bssid[IEEE80211_ADDR_LEN],
const uint8_t mac[IEEE80211_ADDR_LEN]);
static void upgt_vap_delete(struct ieee80211vap *);
static void upgt_update_mcast(struct ifnet *);
static uint8_t upgt_rx_rate(struct upgt_softc *, const int);
static void upgt_set_multi(void *);
static void upgt_stop(struct upgt_softc *, int);
static void upgt_setup_rates(struct ieee80211vap *, struct ieee80211com *);
static int upgt_set_macfilter(struct upgt_softc *, uint8_t);
static int upgt_newstate(struct ieee80211vap *, enum ieee80211_state, int);
static void upgt_task(void *);
static void upgt_scantask(void *);
static void upgt_set_chan(struct upgt_softc *, struct ieee80211_channel *);
static void upgt_set_led(struct upgt_softc *, int);
static void upgt_set_led_blink(void *);
static void upgt_tx_task(void *);
static int upgt_get_stats(struct upgt_softc *);
static void upgt_mem_free(struct upgt_softc *, uint32_t);
static uint32_t upgt_mem_alloc(struct upgt_softc *);
static void upgt_free_tx(struct upgt_softc *);
static void upgt_free_rx(struct upgt_softc *);
static void upgt_free_cmd(struct upgt_softc *);
static void upgt_watchdog(void *);
static const char *upgt_fwname = "upgt-gw3887";
static const struct usb_devno upgt_devs_2[] = {
/* version 2 devices */
{ USB_VENDOR_ACCTON, USB_PRODUCT_ACCTON_PRISM_GT },
{ USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5D7050 },
{ USB_VENDOR_CONCEPTRONIC, USB_PRODUCT_CONCEPTRONIC_PRISM_GT },
{ USB_VENDOR_DELL, USB_PRODUCT_DELL_PRISM_GT_1 },
{ USB_VENDOR_DELL, USB_PRODUCT_DELL_PRISM_GT_2 },
{ USB_VENDOR_FSC, USB_PRODUCT_FSC_E5400 },
{ USB_VENDOR_GLOBESPAN, USB_PRODUCT_GLOBESPAN_PRISM_GT_1 },
{ USB_VENDOR_GLOBESPAN, USB_PRODUCT_GLOBESPAN_PRISM_GT_2 },
{ USB_VENDOR_INTERSIL, USB_PRODUCT_INTERSIL_PRISM_GT },
{ USB_VENDOR_NETGEAR, USB_PRODUCT_NETGEAR_WG111V2_2 },
{ USB_VENDOR_SMC, USB_PRODUCT_SMC_2862WG },
{ USB_VENDOR_WISTRONNEWEB, USB_PRODUCT_WISTRONNEWEB_UR045G },
{ USB_VENDOR_XYRATEX, USB_PRODUCT_XYRATEX_PRISM_GT_1 },
{ USB_VENDOR_XYRATEX, USB_PRODUCT_XYRATEX_PRISM_GT_2 },
{ USB_VENDOR_ZCOM, USB_PRODUCT_ZCOM_XG703A }
};
static int
upgt_match(device_t dev)
{
struct usb_attach_arg *uaa = device_get_ivars(dev);
if (!uaa->iface)
return UMATCH_NONE;
if (usb_lookup(upgt_devs_2, uaa->vendor, uaa->product) != NULL)
return (UMATCH_VENDOR_PRODUCT);
return (UMATCH_NONE);
}
static int
upgt_attach(device_t dev)
{
int i;
struct upgt_softc *sc = device_get_softc(dev);
struct usb_attach_arg *uaa = device_get_ivars(dev);
usb_endpoint_descriptor_t *ed;
usb_interface_descriptor_t *id;
usbd_status error;
sc->sc_dev = dev;
sc->sc_udev = uaa->device;
#ifdef UPGT_DEBUG
sc->sc_debug = upgt_debug;
#endif
/* set configuration number */
if (usbd_set_config_no(sc->sc_udev, UPGT_CONFIG_NO, 0) != 0) {
device_printf(dev, "could not set configuration no!\n");
return ENXIO;
}
/* get the first interface handle */
error = usbd_device2interface_handle(sc->sc_udev, UPGT_IFACE_INDEX,
&sc->sc_iface);
if (error != 0) {
device_printf(dev, "could not get interface handle!\n");
return ENXIO;
}
/* find endpoints */
id = usbd_get_interface_descriptor(sc->sc_iface);
sc->sc_rx_no = sc->sc_tx_no = -1;
for (i = 0; i < id->bNumEndpoints; i++) {
ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i);
if (ed == NULL) {
device_printf(dev,
"no endpoint descriptor for iface %d!\n", i);
return ENXIO;
}
if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK)
sc->sc_tx_no = ed->bEndpointAddress;
if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK)
sc->sc_rx_no = ed->bEndpointAddress;
/*
* 0x01 TX pipe
* 0x81 RX pipe
*
* Deprecated scheme (not used with fw version >2.5.6.x):
* 0x02 TX MGMT pipe
* 0x82 TX MGMT pipe
*/
if (sc->sc_tx_no != -1 && sc->sc_rx_no != -1)
break;
}
if (sc->sc_rx_no == -1 || sc->sc_tx_no == -1) {
device_printf(dev, "missing endpoint!\n");
return ENXIO;
}
/*
* Open TX and RX USB bulk pipes.
*/
error = usbd_open_pipe(sc->sc_iface, sc->sc_tx_no, USBD_EXCLUSIVE_USE,
&sc->sc_tx_pipeh);
if (error != 0) {
device_printf(dev, "could not open TX pipe: %s!\n",
usbd_errstr(error));
goto fail;
}
error = usbd_open_pipe(sc->sc_iface, sc->sc_rx_no, USBD_EXCLUSIVE_USE,
&sc->sc_rx_pipeh);
if (error != 0) {
device_printf(dev, "could not open RX pipe: %s!\n",
usbd_errstr(error));
goto fail;
}
/* Allocate TX, RX, and CMD xfers. */
if (upgt_alloc_tx(sc) != 0)
goto fail;
if (upgt_alloc_rx(sc) != 0)
goto fail;
if (upgt_alloc_cmd(sc) != 0)
goto fail;
/* We need the firmware loaded to complete the attach. */
return upgt_attach_hook(dev);
fail:
device_printf(dev, "%s failed!\n", __func__);
return ENXIO;
}
static int
upgt_attach_hook(device_t dev)
{
struct ieee80211com *ic;
struct ifnet *ifp;
struct upgt_softc *sc = device_get_softc(dev);
struct upgt_data *data_rx = &sc->rx_data;
uint8_t bands;
usbd_status error;
ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211);
if (ifp == NULL) {
device_printf(dev, "can not if_alloc()\n");
return ENXIO;
}
mtx_init(&sc->sc_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK,
MTX_DEF | MTX_RECURSE);
usb_init_task(&sc->sc_mcasttask, upgt_set_multi, sc);
usb_init_task(&sc->sc_scantask, upgt_scantask, sc);
usb_init_task(&sc->sc_task, upgt_task, sc);
usb_init_task(&sc->sc_task_tx, upgt_tx_task, sc);
callout_init(&sc->sc_led_ch, 0);
callout_init(&sc->sc_watchdog_ch, 0);
/* Initialize the device. */
if (upgt_device_reset(sc) != 0)
goto fail;
/* Verify the firmware. */
if (upgt_fw_verify(sc) != 0)
goto fail;
/* Calculate device memory space. */
if (sc->sc_memaddr_frame_start == 0 || sc->sc_memaddr_frame_end == 0) {
device_printf(dev,
"could not find memory space addresses on FW!\n");
goto fail;
}
sc->sc_memaddr_frame_end -= UPGT_MEMSIZE_RX + 1;
sc->sc_memaddr_rx_start = sc->sc_memaddr_frame_end + 1;
DPRINTF(sc, UPGT_DEBUG_FW, "memory address frame start=0x%08x\n",
sc->sc_memaddr_frame_start);
DPRINTF(sc, UPGT_DEBUG_FW, "memory address frame end=0x%08x\n",
sc->sc_memaddr_frame_end);
DPRINTF(sc, UPGT_DEBUG_FW, "memory address rx start=0x%08x\n",
sc->sc_memaddr_rx_start);
upgt_mem_init(sc);
/* Load the firmware. */
if (upgt_fw_load(sc) != 0)
goto fail;
/* Startup the RX pipe. */
usbd_setup_xfer(data_rx->xfer, sc->sc_rx_pipeh, data_rx, data_rx->buf,
MCLBYTES, USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, upgt_rxeof);
error = usbd_transfer(data_rx->xfer);
if (error != 0 && error != USBD_IN_PROGRESS) {
device_printf(dev, "could not queue RX transfer!\n");
goto fail;
}
usbd_delay_ms(sc->sc_udev, 100);
/* Read the whole EEPROM content and parse it. */
if (upgt_eeprom_read(sc) != 0)
goto fail;
if (upgt_eeprom_parse(sc) != 0)
goto fail;
/* Setup the 802.11 device. */
ifp->if_softc = sc;
if_initname(ifp, "upgt", device_get_unit(sc->sc_dev));
ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST |
IFF_NEEDSGIANT; /* USB stack is still under Giant lock */
ifp->if_init = upgt_init;
ifp->if_ioctl = upgt_ioctl;
ifp->if_start = upgt_start;
IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
IFQ_SET_READY(&ifp->if_snd);
ic = ifp->if_l2com;
ic->ic_ifp = ifp;
ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
ic->ic_opmode = IEEE80211_M_STA;
/* set device capabilities */
ic->ic_caps =
IEEE80211_C_STA /* station mode */
| IEEE80211_C_MONITOR /* monitor mode */
| IEEE80211_C_SHPREAMBLE /* short preamble supported */
| IEEE80211_C_SHSLOT /* short slot time supported */
| IEEE80211_C_BGSCAN /* capable of bg scanning */
| IEEE80211_C_WPA /* 802.11i */
;
bands = 0;
setbit(&bands, IEEE80211_MODE_11B);
setbit(&bands, IEEE80211_MODE_11G);
ieee80211_init_channels(ic, NULL, &bands);
ieee80211_ifattach(ic);
ic->ic_raw_xmit = upgt_raw_xmit;
ic->ic_scan_start = upgt_scan_start;
ic->ic_scan_end = upgt_scan_end;
ic->ic_set_channel = upgt_set_channel;
ic->ic_vap_create = upgt_vap_create;
ic->ic_vap_delete = upgt_vap_delete;
ic->ic_update_mcast = upgt_update_mcast;
bpfattach(ifp, DLT_IEEE802_11_RADIO,
sizeof(struct ieee80211_frame) + sizeof(sc->sc_txtap));
sc->sc_rxtap_len = sizeof(sc->sc_rxtap);
sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len);
sc->sc_rxtap.wr_ihdr.it_present = htole32(UPGT_RX_RADIOTAP_PRESENT);
sc->sc_txtap_len = sizeof(sc->sc_txtap);
sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len);
sc->sc_txtap.wt_ihdr.it_present = htole32(UPGT_TX_RADIOTAP_PRESENT);
if (bootverbose)
ieee80211_announce(ic);
usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, sc->sc_dev);
return 0;
fail:
device_printf(dev, "%s failed!\n", __func__);
mtx_destroy(&sc->sc_mtx);
if_free(ifp);
return ENXIO;
}
static void
upgt_tx_task(void *arg)
{
struct upgt_softc *sc = arg;
struct ifnet *ifp = sc->sc_ifp;
struct ieee80211com *ic = ifp->if_l2com;
struct ieee80211_frame *wh;
struct ieee80211_key *k;
struct upgt_data *data_tx;
struct upgt_lmac_mem *mem;
struct upgt_lmac_tx_desc *txdesc;
struct mbuf *m;
uint32_t addr;
int len, i;
usbd_status error;
upgt_set_led(sc, UPGT_LED_BLINK);
UPGT_LOCK(sc);
for (i = 0; i < upgt_txbuf; i++) {
data_tx = &sc->tx_data[i];
if (data_tx->m == NULL)
continue;
m = data_tx->m;
addr = data_tx->addr + UPGT_MEMSIZE_FRAME_HEAD;
/*
* Software crypto.
*/
wh = mtod(m, struct ieee80211_frame *);
if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
k = ieee80211_crypto_encap(data_tx->ni, m);
if (k == NULL) {
device_printf(sc->sc_dev,
"ieee80211_crypto_encap returns NULL.\n");
goto done;
}
/* in case packet header moved, reset pointer */
wh = mtod(m, struct ieee80211_frame *);
}
/*
* Transmit the URB containing the TX data.
*/
bzero(data_tx->buf, MCLBYTES);
mem = (struct upgt_lmac_mem *)data_tx->buf;
mem->addr = htole32(addr);
txdesc = (struct upgt_lmac_tx_desc *)(mem + 1);
if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) ==
IEEE80211_FC0_TYPE_MGT) {
/* mgmt frames */
txdesc->header1.flags = UPGT_H1_FLAGS_TX_MGMT;
/* always send mgmt frames at lowest rate (DS1) */
memset(txdesc->rates, 0x10, sizeof(txdesc->rates));
} else {
/* data frames */
txdesc->header1.flags = UPGT_H1_FLAGS_TX_DATA;
bcopy(sc->sc_cur_rateset, txdesc->rates,
sizeof(txdesc->rates));
}
txdesc->header1.type = UPGT_H1_TYPE_TX_DATA;
txdesc->header1.len = htole16(m->m_pkthdr.len);
txdesc->header2.reqid = htole32(data_tx->addr);
txdesc->header2.type = htole16(UPGT_H2_TYPE_TX_ACK_YES);
txdesc->header2.flags = htole16(UPGT_H2_FLAGS_TX_ACK_YES);
txdesc->type = htole32(UPGT_TX_DESC_TYPE_DATA);
txdesc->pad3[0] = UPGT_TX_DESC_PAD3_SIZE;
if (bpf_peers_present(ifp->if_bpf)) {
struct upgt_tx_radiotap_header *tap = &sc->sc_txtap;
tap->wt_flags = 0;
tap->wt_rate = 0; /* XXX where to get from? */
tap->wt_chan_freq = htole16(ic->ic_curchan->ic_freq);
tap->wt_chan_flags = htole16(ic->ic_curchan->ic_flags);
bpf_mtap2(ifp->if_bpf, tap, sc->sc_txtap_len, m);
}
/* copy frame below our TX descriptor header */
m_copydata(m, 0, m->m_pkthdr.len,
data_tx->buf + (sizeof(*mem) + sizeof(*txdesc)));
/* calculate frame size */
len = sizeof(*mem) + sizeof(*txdesc) + m->m_pkthdr.len;
/* we need to align the frame to a 4 byte boundary */
len = (len + 3) & ~3;
/* calculate frame checksum */
mem->chksum = upgt_chksum_le((uint32_t *)txdesc,
len - sizeof(*mem));
/* we do not need the mbuf anymore */
m_freem(m);
data_tx->m = NULL;
DPRINTF(sc, UPGT_DEBUG_XMIT, "%s: TX start data sending\n",
__func__);
KASSERT(len <= MCLBYTES, ("mbuf is small for saving data"));
usbd_setup_xfer(data_tx->xfer, sc->sc_tx_pipeh, data_tx,
data_tx->buf, len, USBD_FORCE_SHORT_XFER | USBD_NO_COPY,
UPGT_USB_TIMEOUT, upgt_txeof);
UPGT_UNLOCK(sc);
mtx_lock(&Giant);
error = usbd_transfer(data_tx->xfer);
mtx_unlock(&Giant);
UPGT_LOCK(sc);
if (error != 0 && error != USBD_IN_PROGRESS) {
device_printf(sc->sc_dev,
"could not transmit TX data URB!\n");
goto done;
}
DPRINTF(sc, UPGT_DEBUG_XMIT, "TX sent (%d bytes)\n", len);
}
done:
UPGT_UNLOCK(sc);
/*
* If we don't regulary read the device statistics, the RX queue
* will stall. It's strange, but it works, so we keep reading
* the statistics here. *shrug*
*/
(void)upgt_get_stats(sc);
}
static void
upgt_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
{
struct upgt_data *data_tx = priv;
struct upgt_softc *sc = data_tx->sc;
if (status != USBD_NORMAL_COMPLETION) {
if (status == USBD_NOT_STARTED || status == USBD_CANCELLED)
return;
if (status == USBD_STALLED) {
usbd_clear_endpoint_stall_async(sc->sc_rx_pipeh);
return;
}
device_printf(sc->sc_dev, "TX warning(%s)\n",
usbd_errstr(status));
}
}
static int
upgt_get_stats(struct upgt_softc *sc)
{
struct upgt_data *data_cmd = &sc->cmd_data;
struct upgt_lmac_mem *mem;
struct upgt_lmac_stats *stats;
int len;
/*
* Transmit the URB containing the CMD data.
*/
bzero(data_cmd->buf, MCLBYTES);
mem = (struct upgt_lmac_mem *)data_cmd->buf;
mem->addr = htole32(sc->sc_memaddr_frame_start +
UPGT_MEMSIZE_FRAME_HEAD);
stats = (struct upgt_lmac_stats *)(mem + 1);
stats->header1.flags = 0;
stats->header1.type = UPGT_H1_TYPE_CTRL;
stats->header1.len = htole16(
sizeof(struct upgt_lmac_stats) - sizeof(struct upgt_lmac_header));
stats->header2.reqid = htole32(sc->sc_memaddr_frame_start);
stats->header2.type = htole16(UPGT_H2_TYPE_STATS);
stats->header2.flags = 0;
len = sizeof(*mem) + sizeof(*stats);
mem->chksum = upgt_chksum_le((uint32_t *)stats,
len - sizeof(*mem));
if (upgt_bulk_xmit(sc, data_cmd, sc->sc_tx_pipeh, &len, 0) != 0) {
device_printf(sc->sc_dev,
"could not transmit statistics CMD data URB!\n");
return (EIO);
}
return (0);
}
static int
upgt_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
{
struct upgt_softc *sc = ifp->if_softc;
struct ieee80211com *ic = ifp->if_l2com;
struct ifreq *ifr = (struct ifreq *) data;
int error = 0, startall = 0;
switch (cmd) {
case SIOCSIFFLAGS:
mtx_lock(&Giant);
if (ifp->if_flags & IFF_UP) {
if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
if ((ifp->if_flags ^ sc->sc_if_flags) &
(IFF_ALLMULTI | IFF_PROMISC))
upgt_set_multi(sc);
} else {
upgt_init(sc);
startall = 1;
}
} else {
if (ifp->if_drv_flags & IFF_DRV_RUNNING)
upgt_stop(sc, 1);
}
sc->sc_if_flags = ifp->if_flags;
if (startall)
ieee80211_start_all(ic);
mtx_unlock(&Giant);
break;
case SIOCGIFMEDIA:
error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
break;
case SIOCGIFADDR:
error = ether_ioctl(ifp, cmd, data);
break;
default:
error = EINVAL;
break;
}
return error;
}
static void
upgt_stop(struct upgt_softc *sc, int disable)
{
struct ifnet *ifp = sc->sc_ifp;
/* abort and close TX / RX pipes */
if (sc->sc_tx_pipeh != NULL)
usbd_abort_pipe(sc->sc_tx_pipeh);
if (sc->sc_rx_pipeh != NULL)
usbd_abort_pipe(sc->sc_rx_pipeh);
/* device down */
sc->sc_tx_timer = 0;
ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
}
static void
upgt_task(void *arg)
{
struct upgt_softc *sc = arg;
struct ifnet *ifp = sc->sc_ifp;
struct ieee80211com *ic = ifp->if_l2com;
struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
struct upgt_vap *uvp = UPGT_VAP(vap);
DPRINTF(sc, UPGT_DEBUG_STATE, "%s: %s -> %s\n", __func__,
ieee80211_state_name[vap->iv_state],
ieee80211_state_name[sc->sc_state]);
switch (sc->sc_state) {
case IEEE80211_S_INIT:
/* do not accept any frames if the device is down */
UPGT_LOCK(sc);
upgt_set_macfilter(sc, sc->sc_state);
UPGT_UNLOCK(sc);
upgt_set_led(sc, UPGT_LED_OFF);
break;
case IEEE80211_S_SCAN:
upgt_set_chan(sc, ic->ic_curchan);
break;
case IEEE80211_S_AUTH:
upgt_set_chan(sc, ic->ic_curchan);
break;
case IEEE80211_S_ASSOC:
break;
case IEEE80211_S_RUN:
UPGT_LOCK(sc);
upgt_set_macfilter(sc, sc->sc_state);
UPGT_UNLOCK(sc);
upgt_set_led(sc, UPGT_LED_ON);
break;
default:
break;
}
IEEE80211_LOCK(ic);
uvp->newstate(vap, sc->sc_state, sc->sc_arg);
if (vap->iv_newstate_cb != NULL)
vap->iv_newstate_cb(vap, sc->sc_state, sc->sc_arg);
IEEE80211_UNLOCK(ic);
}
static void
upgt_set_led(struct upgt_softc *sc, int action)
{
struct upgt_data *data_cmd = &sc->cmd_data;
struct upgt_lmac_mem *mem;
struct upgt_lmac_led *led;
int len;
/*
* Transmit the URB containing the CMD data.
*/
bzero(data_cmd->buf, MCLBYTES);
mem = (struct upgt_lmac_mem *)data_cmd->buf;
mem->addr = htole32(sc->sc_memaddr_frame_start +
UPGT_MEMSIZE_FRAME_HEAD);
led = (struct upgt_lmac_led *)(mem + 1);
led->header1.flags = UPGT_H1_FLAGS_TX_NO_CALLBACK;
led->header1.type = UPGT_H1_TYPE_CTRL;
led->header1.len = htole16(
sizeof(struct upgt_lmac_led) -
sizeof(struct upgt_lmac_header));
led->header2.reqid = htole32(sc->sc_memaddr_frame_start);
led->header2.type = htole16(UPGT_H2_TYPE_LED);
led->header2.flags = 0;
switch (action) {
case UPGT_LED_OFF:
led->mode = htole16(UPGT_LED_MODE_SET);
led->action_fix = 0;
led->action_tmp = htole16(UPGT_LED_ACTION_OFF);
led->action_tmp_dur = 0;
break;
case UPGT_LED_ON:
led->mode = htole16(UPGT_LED_MODE_SET);
led->action_fix = 0;
led->action_tmp = htole16(UPGT_LED_ACTION_ON);
led->action_tmp_dur = 0;
break;
case UPGT_LED_BLINK:
if (sc->sc_state != IEEE80211_S_RUN)
return;
if (sc->sc_led_blink)
/* previous blink was not finished */
return;
led->mode = htole16(UPGT_LED_MODE_SET);
led->action_fix = htole16(UPGT_LED_ACTION_OFF);
led->action_tmp = htole16(UPGT_LED_ACTION_ON);
led->action_tmp_dur = htole16(UPGT_LED_ACTION_TMP_DUR);
/* lock blink */
sc->sc_led_blink = 1;
callout_reset(&sc->sc_led_ch, hz, upgt_set_led_blink, sc);
break;
default:
return;
}
len = sizeof(*mem) + sizeof(*led);
mem->chksum = upgt_chksum_le((uint32_t *)led,
len - sizeof(*mem));
if (upgt_bulk_xmit(sc, data_cmd, sc->sc_tx_pipeh, &len, 0) != 0)
device_printf(sc->sc_dev, "could not transmit led CMD URB!\n");
}
static void
upgt_set_led_blink(void *arg)
{
struct upgt_softc *sc = arg;
/* blink finished, we are ready for a next one */
sc->sc_led_blink = 0;
}
static void
upgt_init(void *priv)
{
struct upgt_softc *sc = priv;
struct ifnet *ifp = sc->sc_ifp;
struct ieee80211com *ic = ifp->if_l2com;
UPGT_LOCK(sc);
upgt_init_locked(sc);
UPGT_UNLOCK(sc);
if (ifp->if_drv_flags & IFF_DRV_RUNNING)
ieee80211_start_all(ic); /* start all vap's */
}
static void
upgt_init_locked(struct upgt_softc *sc)
{
struct ifnet *ifp = sc->sc_ifp;
struct ieee80211com *ic = ifp->if_l2com;
IEEE80211_ADDR_COPY(ic->ic_myaddr, IF_LLADDR(ifp));
DPRINTF(sc, UPGT_DEBUG_RESET, "setting MAC address to %s\n",
ether_sprintf(ic->ic_myaddr));
upgt_set_macfilter(sc, IEEE80211_S_SCAN);
ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
ifp->if_drv_flags |= IFF_DRV_RUNNING;
}
static int
upgt_set_macfilter(struct upgt_softc *sc, uint8_t state)
{
struct ifnet *ifp = sc->sc_ifp;
struct ieee80211com *ic = ifp->if_l2com;
struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
struct ieee80211_node *ni = vap->iv_bss;
struct upgt_data *data_cmd = &sc->cmd_data;
struct upgt_lmac_mem *mem;
struct upgt_lmac_filter *filter;
int len;
uint8_t broadcast[] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
/*
* Transmit the URB containing the CMD data.
*/
bzero(data_cmd->buf, MCLBYTES);
mem = (struct upgt_lmac_mem *)data_cmd->buf;
mem->addr = htole32(sc->sc_memaddr_frame_start +
UPGT_MEMSIZE_FRAME_HEAD);
filter = (struct upgt_lmac_filter *)(mem + 1);
filter->header1.flags = UPGT_H1_FLAGS_TX_NO_CALLBACK;
filter->header1.type = UPGT_H1_TYPE_CTRL;
filter->header1.len = htole16(
sizeof(struct upgt_lmac_filter) -
sizeof(struct upgt_lmac_header));
filter->header2.reqid = htole32(sc->sc_memaddr_frame_start);
filter->header2.type = htole16(UPGT_H2_TYPE_MACFILTER);
filter->header2.flags = 0;
switch (state) {
case IEEE80211_S_INIT:
DPRINTF(sc, UPGT_DEBUG_STATE, "%s: set MAC filter to INIT\n",
__func__);
filter->type = htole16(UPGT_FILTER_TYPE_RESET);
break;
case IEEE80211_S_SCAN:
DPRINTF(sc, UPGT_DEBUG_STATE,
"set MAC filter to SCAN (bssid %s)\n",
ether_sprintf(broadcast));
filter->type = htole16(UPGT_FILTER_TYPE_NONE);
IEEE80211_ADDR_COPY(filter->dst, ic->ic_myaddr);
IEEE80211_ADDR_COPY(filter->src, broadcast);
filter->unknown1 = htole16(UPGT_FILTER_UNKNOWN1);
filter->rxaddr = htole32(sc->sc_memaddr_rx_start);
filter->unknown2 = htole16(UPGT_FILTER_UNKNOWN2);
filter->rxhw = htole32(sc->sc_eeprom_hwrx);
filter->unknown3 = htole16(UPGT_FILTER_UNKNOWN3);
break;
case IEEE80211_S_RUN:
/* XXX monitor mode isn't tested yet. */
if (vap->iv_opmode == IEEE80211_M_MONITOR) {
filter->type = htole16(UPGT_FILTER_TYPE_MONITOR);
IEEE80211_ADDR_COPY(filter->dst, ic->ic_myaddr);
IEEE80211_ADDR_COPY(filter->src, ni->ni_bssid);
filter->unknown1 = htole16(UPGT_FILTER_MONITOR_UNKNOWN1);
filter->rxaddr = htole32(sc->sc_memaddr_rx_start);
filter->unknown2 = htole16(UPGT_FILTER_MONITOR_UNKNOWN2);
filter->rxhw = htole32(sc->sc_eeprom_hwrx);
filter->unknown3 = htole16(UPGT_FILTER_MONITOR_UNKNOWN3);
} else {
DPRINTF(sc, UPGT_DEBUG_STATE,
"set MAC filter to RUN (bssid %s)\n",
ether_sprintf(ni->ni_bssid));
filter->type = htole16(UPGT_FILTER_TYPE_STA);
IEEE80211_ADDR_COPY(filter->dst, ic->ic_myaddr);
IEEE80211_ADDR_COPY(filter->src, ni->ni_bssid);
filter->unknown1 = htole16(UPGT_FILTER_UNKNOWN1);
filter->rxaddr = htole32(sc->sc_memaddr_rx_start);
filter->unknown2 = htole16(UPGT_FILTER_UNKNOWN2);
filter->rxhw = htole32(sc->sc_eeprom_hwrx);
filter->unknown3 = htole16(UPGT_FILTER_UNKNOWN3);
}
break;
default:
device_printf(sc->sc_dev,
"MAC filter does not know that state!\n");
break;
}
len = sizeof(*mem) + sizeof(*filter);
mem->chksum = upgt_chksum_le((uint32_t *)filter,
len - sizeof(*mem));
UPGT_UNLOCK(sc);
if (upgt_bulk_xmit(sc, data_cmd, sc->sc_tx_pipeh, &len, 0) != 0) {
device_printf(sc->sc_dev,
"could not transmit macfilter CMD data URB!\n");
UPGT_LOCK(sc);
return (EIO);
}
UPGT_LOCK(sc);
return (0);
}
static void
upgt_setup_rates(struct ieee80211vap *vap, struct ieee80211com *ic)
{
struct ifnet *ifp = ic->ic_ifp;
struct upgt_softc *sc = ifp->if_softc;
const struct ieee80211_txparam *tp;
/*
* 0x01 = OFMD6 0x10 = DS1
* 0x04 = OFDM9 0x11 = DS2
* 0x06 = OFDM12 0x12 = DS5
* 0x07 = OFDM18 0x13 = DS11
* 0x08 = OFDM24
* 0x09 = OFDM36
* 0x0a = OFDM48
* 0x0b = OFDM54
*/
const uint8_t rateset_auto_11b[] =
{ 0x13, 0x13, 0x12, 0x11, 0x11, 0x10, 0x10, 0x10 };
const uint8_t rateset_auto_11g[] =
{ 0x0b, 0x0a, 0x09, 0x08, 0x07, 0x06, 0x04, 0x01 };
const uint8_t rateset_fix_11bg[] =
{ 0x10, 0x11, 0x12, 0x13, 0x01, 0x04, 0x06, 0x07,
0x08, 0x09, 0x0a, 0x0b };
tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)];
/* XXX */
if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) {
/*
* Automatic rate control is done by the device.
* We just pass the rateset from which the device
* will pickup a rate.
*/
if (ic->ic_curmode == IEEE80211_MODE_11B)
bcopy(rateset_auto_11b, sc->sc_cur_rateset,
sizeof(sc->sc_cur_rateset));
if (ic->ic_curmode == IEEE80211_MODE_11G ||
ic->ic_curmode == IEEE80211_MODE_AUTO)
bcopy(rateset_auto_11g, sc->sc_cur_rateset,
sizeof(sc->sc_cur_rateset));
} else {
/* set a fixed rate */
memset(sc->sc_cur_rateset, rateset_fix_11bg[tp->ucastrate],
sizeof(sc->sc_cur_rateset));
}
}
static void
upgt_set_multi(void *arg)
{
struct upgt_softc *sc = arg;
struct ifnet *ifp = sc->sc_ifp;
if (!(ifp->if_flags & IFF_UP))
return;
/*
* XXX don't know how to set a device. Lack of docs. Just try to set
* IFF_ALLMULTI flag here.
*/
IF_ADDR_LOCK(ifp);
ifp->if_flags |= IFF_ALLMULTI;
IF_ADDR_UNLOCK(ifp);
}
static void
upgt_start(struct ifnet *ifp)
{
struct upgt_softc *sc = ifp->if_softc;
struct upgt_data *data_tx;
struct ieee80211_node *ni;
struct mbuf *m;
int i;
UPGT_LOCK(sc);
for (i = 0; i < upgt_txbuf; i++) {
data_tx = &sc->tx_data[i];
if (data_tx->use == 1)
continue;
IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
if (m == NULL)
break;
ni = (struct ieee80211_node *)m->m_pkthdr.rcvif;
m = ieee80211_encap(ni, m);
if (m == NULL) {
ieee80211_free_node(ni);
ifp->if_oerrors++;
continue;
}
if ((data_tx->addr = upgt_mem_alloc(sc)) == 0) {
device_printf(sc->sc_dev, "no free prism memory!\n");
UPGT_UNLOCK(sc);
return;
}
data_tx->ni = ni;
data_tx->m = m;
data_tx->use = 1;
sc->tx_queued++;
}
if (sc->tx_queued > 0) {
DPRINTF(sc, UPGT_DEBUG_XMIT, "tx_queued=%d\n", sc->tx_queued);
ifp->if_drv_flags |= IFF_DRV_OACTIVE;
sc->sc_tx_timer = 5;
callout_reset(&sc->sc_watchdog_ch, hz, upgt_watchdog, sc);
/* process the TX queue in process context */
usb_rem_task(sc->sc_udev, &sc->sc_task_tx);
usb_add_task(sc->sc_udev, &sc->sc_task_tx, USB_TASKQ_DRIVER);
}
UPGT_UNLOCK(sc);
}
static int
upgt_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
const struct ieee80211_bpf_params *params)
{
struct ieee80211com *ic = ni->ni_ic;
struct ifnet *ifp = ic->ic_ifp;
struct upgt_softc *sc = ifp->if_softc;
struct upgt_data *data_tx = NULL;
int i;
/* prevent management frames from being sent if we're not ready */
if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
m_freem(m);
ieee80211_free_node(ni);
return ENETDOWN;
}
UPGT_LOCK(sc);
if (sc->tx_queued >= upgt_txbuf) {
ifp->if_drv_flags |= IFF_DRV_OACTIVE;
m_freem(m);
ieee80211_free_node(ni);
UPGT_UNLOCK(sc);
return ENOBUFS; /* XXX */
}
ifp->if_opackets++;
/* choose a unused buffer. */
for (i = 0; i < upgt_txbuf; i++) {
data_tx = &sc->tx_data[i];
if (data_tx->use == 0)
break;
}
KASSERT(data_tx != NULL, ("data_tx is NULL"));
KASSERT(data_tx->use == 0, ("no empty TX queue"));
if ((data_tx->addr = upgt_mem_alloc(sc)) == 0) {
device_printf(sc->sc_dev, "no free prism memory!\n");
UPGT_UNLOCK(sc);
return ENOBUFS;
}
if (bpf_peers_present(ifp->if_bpf)) {
struct upgt_tx_radiotap_header *tap = &sc->sc_txtap;
tap->wt_flags = 0;
tap->wt_rate = 0; /* TODO: where to get from? */
tap->wt_chan_freq = htole16(ic->ic_curchan->ic_freq);
tap->wt_chan_flags = htole16(ic->ic_curchan->ic_flags);
bpf_mtap2(ifp->if_bpf, tap, sc->sc_txtap_len, m);
}
data_tx->ni = ni;
data_tx->m = m;
data_tx->use = 1;
sc->tx_queued++;
ifp->if_drv_flags |= IFF_DRV_OACTIVE;
UPGT_UNLOCK(sc);
sc->sc_tx_timer = 5;
callout_reset(&sc->sc_watchdog_ch, hz, upgt_watchdog, sc);
usb_rem_task(sc->sc_udev, &sc->sc_task_tx);
usb_add_task(sc->sc_udev, &sc->sc_task_tx, USB_TASKQ_DRIVER);
return 0;
}
static void
upgt_watchdog(void *arg)
{
struct upgt_softc *sc = arg;
struct ifnet *ifp = sc->sc_ifp;
if (sc->sc_tx_timer > 0) {
if (--sc->sc_tx_timer == 0) {
device_printf(sc->sc_dev, "watchdog timeout\n");
/* upgt_init(ifp); XXX needs a process context ? */
ifp->if_oerrors++;
return;
}
callout_reset(&sc->sc_watchdog_ch, hz, upgt_watchdog, sc);
}
}
static uint32_t
upgt_mem_alloc(struct upgt_softc *sc)
{
int i;
for (i = 0; i < sc->sc_memory.pages; i++) {
if (sc->sc_memory.page[i].used == 0) {
sc->sc_memory.page[i].used = 1;
return (sc->sc_memory.page[i].addr);
}
}
return (0);
}
static void
upgt_scantask(void *arg)
{
struct upgt_softc *sc = arg;
struct ifnet *ifp = sc->sc_ifp;
struct ieee80211com *ic = ifp->if_l2com;
switch (sc->sc_scan_action) {
case UPGT_SET_CHANNEL:
upgt_set_chan(sc, ic->ic_curchan);
break;
default:
device_printf(sc->sc_dev, "unknown scan action %d\n",
sc->sc_scan_action);
break;
}
}
static void
upgt_scan_start(struct ieee80211com *ic)
{
/* do nothing. */
}
static void
upgt_scan_end(struct ieee80211com *ic)
{
/* do nothing. */
}
static void
upgt_set_channel(struct ieee80211com *ic)
{
struct upgt_softc *sc = ic->ic_ifp->if_softc;
usb_rem_task(sc->sc_udev, &sc->sc_scantask);
/* do it in a process context */
sc->sc_scan_action = UPGT_SET_CHANNEL;
usb_add_task(sc->sc_udev, &sc->sc_scantask, USB_TASKQ_DRIVER);
}
static void
upgt_set_chan(struct upgt_softc *sc, struct ieee80211_channel *c)
{
struct ifnet *ifp = sc->sc_ifp;
struct ieee80211com *ic = ifp->if_l2com;
struct upgt_data *data_cmd = &sc->cmd_data;
struct upgt_lmac_mem *mem;
struct upgt_lmac_channel *chan;
int len, channel;
channel = ieee80211_chan2ieee(ic, c);
if (channel == 0 || channel == IEEE80211_CHAN_ANY) {
/* XXX should NEVER happen */
device_printf(sc->sc_dev,
"%s: invalid channel %x\n", __func__, channel);
return;
}
DPRINTF(sc, UPGT_DEBUG_STATE, "%s: channel %d\n", __func__, channel);
/*
* Transmit the URB containing the CMD data.
*/
bzero(data_cmd->buf, MCLBYTES);
mem = (struct upgt_lmac_mem *)data_cmd->buf;
mem->addr = htole32(sc->sc_memaddr_frame_start +
UPGT_MEMSIZE_FRAME_HEAD);
chan = (struct upgt_lmac_channel *)(mem + 1);
chan->header1.flags = UPGT_H1_FLAGS_TX_NO_CALLBACK;
chan->header1.type = UPGT_H1_TYPE_CTRL;
chan->header1.len = htole16(
sizeof(struct upgt_lmac_channel) - sizeof(struct upgt_lmac_header));
chan->header2.reqid = htole32(sc->sc_memaddr_frame_start);
chan->header2.type = htole16(UPGT_H2_TYPE_CHANNEL);
chan->header2.flags = 0;
chan->unknown1 = htole16(UPGT_CHANNEL_UNKNOWN1);
chan->unknown2 = htole16(UPGT_CHANNEL_UNKNOWN2);
chan->freq6 = sc->sc_eeprom_freq6[channel];
chan->settings = sc->sc_eeprom_freq6_settings;
chan->unknown3 = UPGT_CHANNEL_UNKNOWN3;
bcopy(&sc->sc_eeprom_freq3[channel].data, chan->freq3_1,
sizeof(chan->freq3_1));
bcopy(&sc->sc_eeprom_freq4[channel], chan->freq4,
sizeof(sc->sc_eeprom_freq4[channel]));
bcopy(&sc->sc_eeprom_freq3[channel].data, chan->freq3_2,
sizeof(chan->freq3_2));
len = sizeof(*mem) + sizeof(*chan);
mem->chksum = upgt_chksum_le((uint32_t *)chan,
len - sizeof(*mem));
if (upgt_bulk_xmit(sc, data_cmd, sc->sc_tx_pipeh, &len, 0) != 0)
device_printf(sc->sc_dev,
"could not transmit channel CMD data URB!\n");
}
static struct ieee80211vap *
upgt_vap_create(struct ieee80211com *ic,
const char name[IFNAMSIZ], int unit, int opmode, int flags,
const uint8_t bssid[IEEE80211_ADDR_LEN],
const uint8_t mac[IEEE80211_ADDR_LEN])
{
struct upgt_vap *uvp;
struct ieee80211vap *vap;
if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */
return NULL;
uvp = (struct upgt_vap *) malloc(sizeof(struct upgt_vap),
M_80211_VAP, M_NOWAIT | M_ZERO);
if (uvp == NULL)
return NULL;
vap = &uvp->vap;
/* enable s/w bmiss handling for sta mode */
ieee80211_vap_setup(ic, vap, name, unit, opmode,
flags | IEEE80211_CLONE_NOBEACONS, bssid, mac);
/* override state transition machine */
uvp->newstate = vap->iv_newstate;
vap->iv_newstate = upgt_newstate;
/* setup device rates */
upgt_setup_rates(vap, ic);
/* complete setup */
ieee80211_vap_attach(vap, ieee80211_media_change,
ieee80211_media_status);
ic->ic_opmode = opmode;
return vap;
}
static int
upgt_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
{
struct upgt_vap *uvp = UPGT_VAP(vap);
struct ieee80211com *ic = vap->iv_ic;
struct upgt_softc *sc = ic->ic_ifp->if_softc;
usb_rem_task(sc->sc_udev, &sc->sc_task);
/* do it in a process context */
sc->sc_state = nstate;
sc->sc_arg = arg;
if (nstate == IEEE80211_S_INIT) {
uvp->newstate(vap, nstate, arg);
return 0;
} else {
usb_add_task(sc->sc_udev, &sc->sc_task, USB_TASKQ_DRIVER);
return EINPROGRESS;
}
}
static void
upgt_vap_delete(struct ieee80211vap *vap)
{
struct upgt_vap *uvp = UPGT_VAP(vap);
ieee80211_vap_detach(vap);
free(uvp, M_80211_VAP);
}
static void
upgt_update_mcast(struct ifnet *ifp)
{
struct upgt_softc *sc = ifp->if_softc;
usb_add_task(sc->sc_udev, &sc->sc_mcasttask, USB_TASKQ_DRIVER);
}
static int
upgt_eeprom_parse(struct upgt_softc *sc)
{
struct ifnet *ifp = sc->sc_ifp;
struct ieee80211com *ic = ifp->if_l2com;
struct upgt_eeprom_header *eeprom_header;
struct upgt_eeprom_option *eeprom_option;
uint16_t option_len;
uint16_t option_type;
uint16_t preamble_len;
int option_end = 0;
/* calculate eeprom options start offset */
eeprom_header = (struct upgt_eeprom_header *)sc->sc_eeprom;
preamble_len = le16toh(eeprom_header->preamble_len);
eeprom_option = (struct upgt_eeprom_option *)(sc->sc_eeprom +
(sizeof(struct upgt_eeprom_header) + preamble_len));
while (!option_end) {
/* the eeprom option length is stored in words */
option_len =
(le16toh(eeprom_option->len) - 1) * sizeof(uint16_t);
option_type =
le16toh(eeprom_option->type);
switch (option_type) {
case UPGT_EEPROM_TYPE_NAME:
DPRINTF(sc, UPGT_DEBUG_FW,
"EEPROM name len=%d\n", option_len);
break;
case UPGT_EEPROM_TYPE_SERIAL:
DPRINTF(sc, UPGT_DEBUG_FW,
"EEPROM serial len=%d\n", option_len);
break;
case UPGT_EEPROM_TYPE_MAC:
DPRINTF(sc, UPGT_DEBUG_FW,
"EEPROM mac len=%d\n", option_len);
IEEE80211_ADDR_COPY(ic->ic_myaddr, eeprom_option->data);
break;
case UPGT_EEPROM_TYPE_HWRX:
DPRINTF(sc, UPGT_DEBUG_FW,
"EEPROM hwrx len=%d\n", option_len);
upgt_eeprom_parse_hwrx(sc, eeprom_option->data);
break;
case UPGT_EEPROM_TYPE_CHIP:
DPRINTF(sc, UPGT_DEBUG_FW,
"EEPROM chip len=%d\n", option_len);
break;
case UPGT_EEPROM_TYPE_FREQ3:
DPRINTF(sc, UPGT_DEBUG_FW,
"EEPROM freq3 len=%d\n", option_len);
upgt_eeprom_parse_freq3(sc, eeprom_option->data,
option_len);
break;
case UPGT_EEPROM_TYPE_FREQ4:
DPRINTF(sc, UPGT_DEBUG_FW,
"EEPROM freq4 len=%d\n", option_len);
upgt_eeprom_parse_freq4(sc, eeprom_option->data,
option_len);
break;
case UPGT_EEPROM_TYPE_FREQ5:
DPRINTF(sc, UPGT_DEBUG_FW,
"EEPROM freq5 len=%d\n", option_len);
break;
case UPGT_EEPROM_TYPE_FREQ6:
DPRINTF(sc, UPGT_DEBUG_FW,
"EEPROM freq6 len=%d\n", option_len);
upgt_eeprom_parse_freq6(sc, eeprom_option->data,
option_len);
break;
case UPGT_EEPROM_TYPE_END:
DPRINTF(sc, UPGT_DEBUG_FW,
"EEPROM end len=%d\n", option_len);
option_end = 1;
break;
case UPGT_EEPROM_TYPE_OFF:
DPRINTF(sc, UPGT_DEBUG_FW,
"%s: EEPROM off without end option!\n", __func__);
return (EIO);
default:
DPRINTF(sc, UPGT_DEBUG_FW,
"EEPROM unknown type 0x%04x len=%d\n",
option_type, option_len);
break;
}
/* jump to next EEPROM option */
eeprom_option = (struct upgt_eeprom_option *)
(eeprom_option->data + option_len);
}
return (0);
}
static void
upgt_eeprom_parse_freq3(struct upgt_softc *sc, uint8_t *data, int len)
{
struct upgt_eeprom_freq3_header *freq3_header;
struct upgt_lmac_freq3 *freq3;
int i, elements, flags;
unsigned channel;
freq3_header = (struct upgt_eeprom_freq3_header *)data;
freq3 = (struct upgt_lmac_freq3 *)(freq3_header + 1);
flags = freq3_header->flags;
elements = freq3_header->elements;
DPRINTF(sc, UPGT_DEBUG_FW, "flags=0x%02x elements=%d\n",
flags, elements);
for (i = 0; i < elements; i++) {
channel = ieee80211_mhz2ieee(le16toh(freq3[i].freq), 0);
if (!(channel >= 0 && channel < IEEE80211_CHAN_MAX))
continue;
sc->sc_eeprom_freq3[channel] = freq3[i];
DPRINTF(sc, UPGT_DEBUG_FW, "frequence=%d, channel=%d\n",
le16toh(sc->sc_eeprom_freq3[channel].freq), channel);
}
}
void
upgt_eeprom_parse_freq4(struct upgt_softc *sc, uint8_t *data, int len)
{
struct upgt_eeprom_freq4_header *freq4_header;
struct upgt_eeprom_freq4_1 *freq4_1;
struct upgt_eeprom_freq4_2 *freq4_2;
int i, j, elements, settings, flags;
unsigned channel;
freq4_header = (struct upgt_eeprom_freq4_header *)data;
freq4_1 = (struct upgt_eeprom_freq4_1 *)(freq4_header + 1);
flags = freq4_header->flags;
elements = freq4_header->elements;
settings = freq4_header->settings;
/* we need this value later */
sc->sc_eeprom_freq6_settings = freq4_header->settings;
DPRINTF(sc, UPGT_DEBUG_FW, "flags=0x%02x elements=%d settings=%d\n",
flags, elements, settings);
for (i = 0; i < elements; i++) {
channel = ieee80211_mhz2ieee(le16toh(freq4_1[i].freq), 0);
if (!(channel >= 0 && channel < IEEE80211_CHAN_MAX))
continue;
freq4_2 = (struct upgt_eeprom_freq4_2 *)freq4_1[i].data;
for (j = 0; j < settings; j++) {
sc->sc_eeprom_freq4[channel][j].cmd = freq4_2[j];
sc->sc_eeprom_freq4[channel][j].pad = 0;
}
DPRINTF(sc, UPGT_DEBUG_FW, "frequence=%d, channel=%d\n",
le16toh(freq4_1[i].freq), channel);
}
}
void
upgt_eeprom_parse_freq6(struct upgt_softc *sc, uint8_t *data, int len)
{
struct upgt_lmac_freq6 *freq6;
int i, elements;
unsigned channel;
freq6 = (struct upgt_lmac_freq6 *)data;
elements = len / sizeof(struct upgt_lmac_freq6);
DPRINTF(sc, UPGT_DEBUG_FW, "elements=%d\n", elements);
for (i = 0; i < elements; i++) {
channel = ieee80211_mhz2ieee(le16toh(freq6[i].freq), 0);
if (!(channel >= 0 && channel < IEEE80211_CHAN_MAX))
continue;
sc->sc_eeprom_freq6[channel] = freq6[i];
DPRINTF(sc, UPGT_DEBUG_FW, "frequence=%d, channel=%d\n",
le16toh(sc->sc_eeprom_freq6[channel].freq), channel);
}
}
static void
upgt_eeprom_parse_hwrx(struct upgt_softc *sc, uint8_t *data)
{
struct upgt_eeprom_option_hwrx *option_hwrx;
option_hwrx = (struct upgt_eeprom_option_hwrx *)data;
sc->sc_eeprom_hwrx = option_hwrx->rxfilter - UPGT_EEPROM_RX_CONST;
DPRINTF(sc, UPGT_DEBUG_FW, "hwrx option value=0x%04x\n",
sc->sc_eeprom_hwrx);
}
static int
upgt_eeprom_read(struct upgt_softc *sc)
{
struct upgt_data *data_cmd = &sc->cmd_data;
struct upgt_lmac_mem *mem;
struct upgt_lmac_eeprom *eeprom;
int offset, block, len;
offset = 0;
block = UPGT_EEPROM_BLOCK_SIZE;
while (offset < UPGT_EEPROM_SIZE) {
DPRINTF(sc, UPGT_DEBUG_FW,
"request EEPROM block (offset=%d, len=%d)\n", offset, block);
/*
* Transmit the URB containing the CMD data.
*/
bzero(data_cmd->buf, MCLBYTES);
mem = (struct upgt_lmac_mem *)data_cmd->buf;
mem->addr = htole32(sc->sc_memaddr_frame_start +
UPGT_MEMSIZE_FRAME_HEAD);
eeprom = (struct upgt_lmac_eeprom *)(mem + 1);
eeprom->header1.flags = 0;
eeprom->header1.type = UPGT_H1_TYPE_CTRL;
eeprom->header1.len = htole16((
sizeof(struct upgt_lmac_eeprom) -
sizeof(struct upgt_lmac_header)) + block);
eeprom->header2.reqid = htole32(sc->sc_memaddr_frame_start);
eeprom->header2.type = htole16(UPGT_H2_TYPE_EEPROM);
eeprom->header2.flags = 0;
eeprom->offset = htole16(offset);
eeprom->len = htole16(block);
len = sizeof(*mem) + sizeof(*eeprom) + block;
mem->chksum = upgt_chksum_le((uint32_t *)eeprom,
len - sizeof(*mem));
if (upgt_bulk_xmit(sc, data_cmd, sc->sc_tx_pipeh, &len,
USBD_FORCE_SHORT_XFER) != 0) {
device_printf(sc->sc_dev,
"could not transmit EEPROM data URB!\n");
return (EIO);
}
if (tsleep(sc, 0, "eeprom_request", UPGT_USB_TIMEOUT)) {
device_printf(sc->sc_dev,
"timeout while waiting for EEPROM data!\n");
return (EIO);
}
offset += block;
if (UPGT_EEPROM_SIZE - offset < block)
block = UPGT_EEPROM_SIZE - offset;
}
return (0);
}
/*
* The firmware awaits a checksum for each frame we send to it.
* The algorithm used therefor is uncommon but somehow similar to CRC32.
*/
static uint32_t
upgt_chksum_le(const uint32_t *buf, size_t size)
{
int i;
uint32_t crc = 0;
for (i = 0; i < size; i += sizeof(uint32_t)) {
crc = htole32(crc ^ *buf++);
crc = htole32((crc >> 5) ^ (crc << 3));
}
return (crc);
}
static void
upgt_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
{
struct upgt_data *data_rx = priv;
struct upgt_softc *sc = data_rx->sc;
int len;
struct upgt_lmac_header *header;
struct upgt_lmac_eeprom *eeprom;
uint8_t h1_type;
uint16_t h2_type;
if (status != USBD_NORMAL_COMPLETION) {
if (status == USBD_NOT_STARTED || status == USBD_CANCELLED)
return;
if (status == USBD_STALLED)
usbd_clear_endpoint_stall_async(sc->sc_rx_pipeh);
goto skip;
}
usbd_get_xfer_status(xfer, NULL, NULL, &len, NULL);
/*
* Check what type of frame came in.
*/
header = (struct upgt_lmac_header *)(data_rx->buf + 4);
h1_type = header->header1.type;
h2_type = le16toh(header->header2.type);
if (h1_type == UPGT_H1_TYPE_CTRL && h2_type == UPGT_H2_TYPE_EEPROM) {
eeprom = (struct upgt_lmac_eeprom *)(data_rx->buf + 4);
uint16_t eeprom_offset = le16toh(eeprom->offset);
uint16_t eeprom_len = le16toh(eeprom->len);
DPRINTF(sc, UPGT_DEBUG_FW,
"received EEPROM block (offset=%d, len=%d)\n",
eeprom_offset, eeprom_len);
bcopy(data_rx->buf + sizeof(struct upgt_lmac_eeprom) + 4,
sc->sc_eeprom + eeprom_offset, eeprom_len);
/* EEPROM data has arrived in time, wakeup tsleep() */
wakeup(sc);
} else if (h1_type == UPGT_H1_TYPE_CTRL &&
h2_type == UPGT_H2_TYPE_TX_DONE) {
DPRINTF(sc, UPGT_DEBUG_XMIT, "%s: received 802.11 TX done\n",
__func__);
upgt_tx_done(sc, data_rx->buf + 4);
} else if (h1_type == UPGT_H1_TYPE_RX_DATA ||
h1_type == UPGT_H1_TYPE_RX_DATA_MGMT) {
DPRINTF(sc, UPGT_DEBUG_RECV, "%s: received 802.11 RX data\n",
__func__);
upgt_rx(sc, data_rx->buf + 4, le16toh(header->header1.len));
} else if (h1_type == UPGT_H1_TYPE_CTRL &&
h2_type == UPGT_H2_TYPE_STATS) {
DPRINTF(sc, UPGT_DEBUG_STAT, "%s: received statistic data\n",
__func__);
/* TODO: what could we do with the statistic data? */
} else {
/* ignore unknown frame types */
DPRINTF(sc, UPGT_DEBUG_INTR,
"received unknown frame type 0x%02x\n",
header->header1.type);
}
skip: /* setup new transfer */
usbd_setup_xfer(xfer, sc->sc_rx_pipeh, data_rx, data_rx->buf, MCLBYTES,
USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, upgt_rxeof);
(void)usbd_transfer(xfer);
}
static void
upgt_rx(struct upgt_softc *sc, uint8_t *data, int pkglen)
{
struct ifnet *ifp = sc->sc_ifp;
struct ieee80211com *ic = ifp->if_l2com;
struct upgt_lmac_rx_desc *rxdesc;
struct ieee80211_node *ni;
struct mbuf *m;
int nf;
/*
* don't pass packets to the ieee80211 framework if the driver isn't
* RUNNING.
*/
if (!(ifp->if_drv_flags & IFF_DRV_RUNNING))
return;
/* access RX packet descriptor */
rxdesc = (struct upgt_lmac_rx_desc *)data;
/* create mbuf which is suitable for strict alignment archs */
KASSERT((pkglen + ETHER_ALIGN) < MCLBYTES,
("A current mbuf storage is small (%d)", pkglen + ETHER_ALIGN));
m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR);
if (m == NULL) {
device_printf(sc->sc_dev, "could not create RX mbuf!\n");
return;
}
m_adj(m, ETHER_ALIGN);
bcopy(rxdesc->data, mtod(m, char *), pkglen);
/* trim FCS */
m->m_len = m->m_pkthdr.len = pkglen - IEEE80211_CRC_LEN;
m->m_pkthdr.rcvif = ifp;
if (bpf_peers_present(ifp->if_bpf)) {
struct upgt_rx_radiotap_header *tap = &sc->sc_rxtap;
tap->wr_flags = 0;
tap->wr_rate = upgt_rx_rate(sc, rxdesc->rate);
tap->wr_chan_freq = htole16(ic->ic_curchan->ic_freq);
tap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags);
tap->wr_antsignal = rxdesc->rssi;
bpf_mtap2(ifp->if_bpf, tap, sc->sc_rxtap_len, m);
}
ifp->if_ipackets++;
nf = -95; /* XXX */
ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *));
if (ni != NULL) {
(void)ieee80211_input(ni, m, rxdesc->rssi, nf, 0);
ieee80211_free_node(ni);
} else
(void)ieee80211_input_all(ic, m, rxdesc->rssi, nf, 0);
DPRINTF(sc, UPGT_DEBUG_RX_PROC, "%s: RX done\n", __func__);
}
static uint8_t
upgt_rx_rate(struct upgt_softc *sc, const int rate)
{
struct ifnet *ifp = sc->sc_ifp;
struct ieee80211com *ic = ifp->if_l2com;
static const uint8_t cck_upgt2rate[4] = { 2, 4, 11, 22 };
static const uint8_t ofdm_upgt2rate[12] =
{ 2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108 };
if (ic->ic_curmode == IEEE80211_MODE_11B &&
!(rate < 0 || rate > 3))
return cck_upgt2rate[rate & 0xf];
if (ic->ic_curmode == IEEE80211_MODE_11G &&
!(rate < 0 || rate > 11))
return ofdm_upgt2rate[rate & 0xf];
return (0);
}
static void
upgt_tx_done(struct upgt_softc *sc, uint8_t *data)
{
struct ifnet *ifp = sc->sc_ifp;
struct upgt_lmac_tx_done_desc *desc;
int i;
desc = (struct upgt_lmac_tx_done_desc *)data;
UPGT_LOCK(sc);
for (i = 0; i < upgt_txbuf; i++) {
struct upgt_data *data_tx = &sc->tx_data[i];
if (data_tx->addr == le32toh(desc->header2.reqid)) {
upgt_mem_free(sc, data_tx->addr);
ieee80211_free_node(data_tx->ni);
data_tx->ni = NULL;
data_tx->addr = 0;
data_tx->m = NULL;
data_tx->use = 0;
sc->tx_queued--;
ifp->if_opackets++;
DPRINTF(sc, UPGT_DEBUG_TX_PROC,
"TX done: memaddr=0x%08x, status=0x%04x, rssi=%d, ",
le32toh(desc->header2.reqid),
le16toh(desc->status), le16toh(desc->rssi));
DPRINTF(sc, UPGT_DEBUG_TX_PROC, "seq=%d\n",
le16toh(desc->seq));
break;
}
}
if (sc->tx_queued == 0) {
/* TX queued was processed, continue */
sc->sc_tx_timer = 0;
ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
UPGT_UNLOCK(sc);
upgt_start(ifp);
return;
}
UPGT_UNLOCK(sc);
}
static void
upgt_mem_free(struct upgt_softc *sc, uint32_t addr)
{
int i;
for (i = 0; i < sc->sc_memory.pages; i++) {
if (sc->sc_memory.page[i].addr == addr) {
sc->sc_memory.page[i].used = 0;
return;
}
}
device_printf(sc->sc_dev,
"could not free memory address 0x%08x!\n", addr);
}
static int
upgt_fw_load(struct upgt_softc *sc)
{
const struct firmware *fw;
struct upgt_data *data_cmd = &sc->cmd_data;
struct upgt_data *data_rx = &sc->rx_data;
struct upgt_fw_x2_header *x2;
char start_fwload_cmd[] = { 0x3c, 0x0d };
int error = 0, offset, bsize, n, i, len;
uint32_t crc32;
fw = firmware_get(upgt_fwname);
if (fw == NULL) {
device_printf(sc->sc_dev, "could not read microcode %s!\n",
upgt_fwname);
return EIO;
}
/* send firmware start load command */
len = sizeof(start_fwload_cmd);
bcopy(start_fwload_cmd, data_cmd->buf, len);
if (upgt_bulk_xmit(sc, data_cmd, sc->sc_tx_pipeh, &len, 0) != 0) {
device_printf(sc->sc_dev,
"could not send start_firmware_load command!\n");
error = EIO;
goto fail;
}
/* send X2 header */
len = sizeof(struct upgt_fw_x2_header);
x2 = (struct upgt_fw_x2_header *)data_cmd->buf;
bcopy(UPGT_X2_SIGNATURE, x2->signature, UPGT_X2_SIGNATURE_SIZE);
x2->startaddr = htole32(UPGT_MEMADDR_FIRMWARE_START);
x2->len = htole32(fw->datasize);
x2->crc = upgt_crc32_le((uint8_t *)data_cmd->buf +
UPGT_X2_SIGNATURE_SIZE,
sizeof(struct upgt_fw_x2_header) - UPGT_X2_SIGNATURE_SIZE -
sizeof(uint32_t));
if (upgt_bulk_xmit(sc, data_cmd, sc->sc_tx_pipeh, &len, 0) != 0) {
device_printf(sc->sc_dev,
"could not send firmware X2 header!\n");
error = EIO;
goto fail;
}
/* download firmware */
for (offset = 0; offset < fw->datasize; offset += bsize) {
if (fw->datasize - offset > UPGT_FW_BLOCK_SIZE)
bsize = UPGT_FW_BLOCK_SIZE;
else
bsize = fw->datasize - offset;
n = upgt_fw_copy((const uint8_t *)fw->data + offset,
data_cmd->buf, bsize);
DPRINTF(sc, UPGT_DEBUG_FW, "FW offset=%d, read=%d, sent=%d\n",
offset, n, bsize);
if (upgt_bulk_xmit(sc, data_cmd, sc->sc_tx_pipeh, &bsize, 0)
!= 0) {
device_printf(sc->sc_dev,
"error while downloading firmware block!\n");
error = EIO;
goto fail;
}
bsize = n;
}
DPRINTF(sc, UPGT_DEBUG_FW, "%s: firmware downloaded\n", __func__);
/* load firmware */
crc32 = upgt_crc32_le(fw->data, fw->datasize);
*((uint32_t *)(data_cmd->buf) ) = crc32;
*((uint8_t *)(data_cmd->buf) + 4) = 'g';
*((uint8_t *)(data_cmd->buf) + 5) = '\r';
len = 6;
if (upgt_bulk_xmit(sc, data_cmd, sc->sc_tx_pipeh, &len, 0) != 0) {
device_printf(sc->sc_dev,
"could not send load_firmware command!\n");
error = EIO;
goto fail;
}
for (i = 0; i < UPGT_FIRMWARE_TIMEOUT; i++) {
len = UPGT_FW_BLOCK_SIZE;
bzero(data_rx->buf, MCLBYTES);
if (upgt_bulk_xmit(sc, data_rx, sc->sc_rx_pipeh, &len,
USBD_SHORT_XFER_OK) != 0) {
device_printf(sc->sc_dev,
"could not read firmware response!\n");
error = EIO;
goto fail;
}
if (memcmp(data_rx->buf, "OK", 2) == 0)
break; /* firmware load was successful */
}
if (i == UPGT_FIRMWARE_TIMEOUT) {
device_printf(sc->sc_dev, "firmware load failed!\n");
error = EIO;
}
DPRINTF(sc, UPGT_DEBUG_FW, "%s: firmware loaded\n", __func__);
fail:
firmware_put(fw, FIRMWARE_UNLOAD);
return (error);
}
static uint32_t
upgt_crc32_le(const void *buf, size_t size)
{
uint32_t crc;
crc = ether_crc32_le(buf, size);
/* apply final XOR value as common for CRC-32 */
crc = htole32(crc ^ 0xffffffffU);
return (crc);
}
/*
* While copying the version 2 firmware, we need to replace two characters:
*
* 0x7e -> 0x7d 0x5e
* 0x7d -> 0x7d 0x5d
*/
static int
upgt_fw_copy(const uint8_t *src, char *dst, int size)
{
int i, j;
for (i = 0, j = 0; i < size && j < size; i++) {
switch (src[i]) {
case 0x7e:
dst[j] = 0x7d;
j++;
dst[j] = 0x5e;
j++;
break;
case 0x7d:
dst[j] = 0x7d;
j++;
dst[j] = 0x5d;
j++;
break;
default:
dst[j] = src[i];
j++;
break;
}
}
return (i);
}
static int
upgt_mem_init(struct upgt_softc *sc)
{
int i;
for (i = 0; i < UPGT_MEMORY_MAX_PAGES; i++) {
sc->sc_memory.page[i].used = 0;
if (i == 0) {
/*
* The first memory page is always reserved for
* command data.
*/
sc->sc_memory.page[i].addr =
sc->sc_memaddr_frame_start + MCLBYTES;
} else {
sc->sc_memory.page[i].addr =
sc->sc_memory.page[i - 1].addr + MCLBYTES;
}
if (sc->sc_memory.page[i].addr + MCLBYTES >=
sc->sc_memaddr_frame_end)
break;
DPRINTF(sc, UPGT_DEBUG_FW, "memory address page %d=0x%08x\n",
i, sc->sc_memory.page[i].addr);
}
sc->sc_memory.pages = i;
if (upgt_txbuf > sc->sc_memory.pages)
DPRINTF(sc, UPGT_DEBUG_FW, "memory pages=%d\n", sc->sc_memory.pages);
return (0);
}
static int
upgt_fw_verify(struct upgt_softc *sc)
{
const struct firmware *fw;
const struct upgt_fw_bra_option *bra_opt;
const struct upgt_fw_bra_descr *descr;
const uint8_t *p;
const uint32_t *uc;
uint32_t bra_option_type, bra_option_len;
int offset, bra_end = 0, error = 0;
fw = firmware_get(upgt_fwname);
if (fw == NULL) {
device_printf(sc->sc_dev, "could not read microcode %s!\n",
upgt_fwname);
return EIO;
}
/*
* Seek to beginning of Boot Record Area (BRA).
*/
for (offset = 0; offset < fw->datasize; offset += sizeof(*uc)) {
uc = (const uint32_t *)((const uint8_t *)fw->data + offset);
if (*uc == 0)
break;
}
for (; offset < fw->datasize; offset += sizeof(*uc)) {
uc = (const uint32_t *)((const uint8_t *)fw->data + offset);
if (*uc != 0)
break;
}
if (offset == fw->datasize) {
device_printf(sc->sc_dev,
"firmware Boot Record Area not found!\n");
error = EIO;
goto fail;
}
DPRINTF(sc, UPGT_DEBUG_FW,
"firmware Boot Record Area found at offset %d\n", offset);
/*
* Parse Boot Record Area (BRA) options.
*/
while (offset < fw->datasize && bra_end == 0) {
/* get current BRA option */
p = (const uint8_t *)fw->data + offset;
bra_opt = (const struct upgt_fw_bra_option *)p;
bra_option_type = le32toh(bra_opt->type);
bra_option_len = le32toh(bra_opt->len) * sizeof(*uc);
switch (bra_option_type) {
case UPGT_BRA_TYPE_FW:
DPRINTF(sc, UPGT_DEBUG_FW, "UPGT_BRA_TYPE_FW len=%d\n",
bra_option_len);
if (bra_option_len != UPGT_BRA_FWTYPE_SIZE) {
device_printf(sc->sc_dev,
"wrong UPGT_BRA_TYPE_FW len!\n");
error = EIO;
goto fail;
}
if (memcmp(UPGT_BRA_FWTYPE_LM86, bra_opt->data,
bra_option_len) == 0) {
sc->sc_fw_type = UPGT_FWTYPE_LM86;
break;
}
if (memcmp(UPGT_BRA_FWTYPE_LM87, bra_opt->data,
bra_option_len) == 0) {
sc->sc_fw_type = UPGT_FWTYPE_LM87;
break;
}
device_printf(sc->sc_dev,
"unsupported firmware type!\n");
error = EIO;
goto fail;
case UPGT_BRA_TYPE_VERSION:
DPRINTF(sc, UPGT_DEBUG_FW,
"UPGT_BRA_TYPE_VERSION len=%d\n", bra_option_len);
break;
case UPGT_BRA_TYPE_DEPIF:
DPRINTF(sc, UPGT_DEBUG_FW,
"UPGT_BRA_TYPE_DEPIF len=%d\n", bra_option_len);
break;
case UPGT_BRA_TYPE_EXPIF:
DPRINTF(sc, UPGT_DEBUG_FW,
"UPGT_BRA_TYPE_EXPIF len=%d\n", bra_option_len);
break;
case UPGT_BRA_TYPE_DESCR:
DPRINTF(sc, UPGT_DEBUG_FW,
"UPGT_BRA_TYPE_DESCR len=%d\n", bra_option_len);
descr = (const struct upgt_fw_bra_descr *)bra_opt->data;
sc->sc_memaddr_frame_start =
le32toh(descr->memaddr_space_start);
sc->sc_memaddr_frame_end =
le32toh(descr->memaddr_space_end);
DPRINTF(sc, UPGT_DEBUG_FW,
"memory address space start=0x%08x\n",
sc->sc_memaddr_frame_start);
DPRINTF(sc, UPGT_DEBUG_FW,
"memory address space end=0x%08x\n",
sc->sc_memaddr_frame_end);
break;
case UPGT_BRA_TYPE_END:
DPRINTF(sc, UPGT_DEBUG_FW, "UPGT_BRA_TYPE_END len=%d\n",
bra_option_len);
bra_end = 1;
break;
default:
DPRINTF(sc, UPGT_DEBUG_FW, "unknown BRA option len=%d\n",
bra_option_len);
error = EIO;
goto fail;
}
/* jump to next BRA option */
offset += sizeof(struct upgt_fw_bra_option) + bra_option_len;
}
DPRINTF(sc, UPGT_DEBUG_FW, "%s: firmware verified", __func__);
fail:
firmware_put(fw, FIRMWARE_UNLOAD);
return (error);
}
static int
upgt_bulk_xmit(struct upgt_softc *sc, struct upgt_data *data,
usbd_pipe_handle pipeh, uint32_t *size, int flags)
{
usbd_status status;
mtx_lock(&Giant);
status = usbd_bulk_transfer(data->xfer, pipeh,
USBD_NO_COPY | flags, UPGT_USB_TIMEOUT, data->buf, size,
"upgt_bulk_xmit");
if (status != USBD_NORMAL_COMPLETION) {
device_printf(sc->sc_dev, "%s: error %s!\n",
__func__, usbd_errstr(status));
mtx_unlock(&Giant);
return (EIO);
}
mtx_unlock(&Giant);
return (0);
}
static int
upgt_device_reset(struct upgt_softc *sc)
{
struct upgt_data *data_cmd = &sc->cmd_data;
char init_cmd[] = { 0x7e, 0x7e, 0x7e, 0x7e };
int len;
len = sizeof(init_cmd);
bcopy(init_cmd, data_cmd->buf, len);
if (upgt_bulk_xmit(sc, data_cmd, sc->sc_tx_pipeh, &len, 0) != 0) {
device_printf(sc->sc_dev,
"could not send device init string!\n");
return (EIO);
}
usbd_delay_ms(sc->sc_udev, 100);
DPRINTF(sc, UPGT_DEBUG_FW, "%s: device initialized\n", __func__);
return (0);
}
static int
upgt_alloc_tx(struct upgt_softc *sc)
{
int i;
sc->tx_queued = 0;
for (i = 0; i < upgt_txbuf; i++) {
struct upgt_data *data_tx = &sc->tx_data[i];
data_tx->sc = sc;
data_tx->xfer = usbd_alloc_xfer(sc->sc_udev);
if (data_tx->xfer == NULL) {
device_printf(sc->sc_dev,
"could not allocate TX xfer!\n");
return (ENOMEM);
}
data_tx->buf = usbd_alloc_buffer(data_tx->xfer, MCLBYTES);
if (data_tx->buf == NULL) {
device_printf(sc->sc_dev,
"could not allocate TX buffer!\n");
return (ENOMEM);
}
bzero(data_tx->buf, MCLBYTES);
}
return (0);
}
static int
upgt_alloc_rx(struct upgt_softc *sc)
{
struct upgt_data *data_rx = &sc->rx_data;
data_rx->sc = sc;
data_rx->xfer = usbd_alloc_xfer(sc->sc_udev);
if (data_rx->xfer == NULL) {
device_printf(sc->sc_dev, "could not allocate RX xfer!\n");
return (ENOMEM);
}
data_rx->buf = usbd_alloc_buffer(data_rx->xfer, MCLBYTES);
if (data_rx->buf == NULL) {
device_printf(sc->sc_dev, "could not allocate RX buffer!\n");
return (ENOMEM);
}
bzero(data_rx->buf, MCLBYTES);
return (0);
}
static int
upgt_alloc_cmd(struct upgt_softc *sc)
{
struct upgt_data *data_cmd = &sc->cmd_data;
data_cmd->sc = sc;
data_cmd->xfer = usbd_alloc_xfer(sc->sc_udev);
if (data_cmd->xfer == NULL) {
device_printf(sc->sc_dev, "could not allocate RX xfer!\n");
return (ENOMEM);
}
data_cmd->buf = usbd_alloc_buffer(data_cmd->xfer, MCLBYTES);
if (data_cmd->buf == NULL) {
device_printf(sc->sc_dev, "could not allocate RX buffer!\n");
return (ENOMEM);
}
bzero(data_cmd->buf, MCLBYTES);
return (0);
}
static int
upgt_detach(device_t dev)
{
struct upgt_softc *sc = device_get_softc(dev);
struct ifnet *ifp = sc->sc_ifp;
struct ieee80211com *ic = ifp->if_l2com;
if (!device_is_attached(dev))
return 0;
upgt_stop(sc, 1);
/* abort and close TX / RX pipes */
if (sc->sc_tx_pipeh != NULL)
usbd_close_pipe(sc->sc_tx_pipeh);
if (sc->sc_rx_pipeh != NULL)
usbd_close_pipe(sc->sc_rx_pipeh);
mtx_destroy(&sc->sc_mtx);
usb_rem_task(sc->sc_udev, &sc->sc_mcasttask);
usb_rem_task(sc->sc_udev, &sc->sc_scantask);
usb_rem_task(sc->sc_udev, &sc->sc_task);
usb_rem_task(sc->sc_udev, &sc->sc_task_tx);
callout_stop(&sc->sc_led_ch);
callout_stop(&sc->sc_watchdog_ch);
/* free xfers */
upgt_free_tx(sc);
upgt_free_rx(sc);
upgt_free_cmd(sc);
bpfdetach(ifp);
ieee80211_ifdetach(ic);
if_free(ifp);
usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, sc->sc_dev);
return 0;
}
static void
upgt_free_rx(struct upgt_softc *sc)
{
struct upgt_data *data_rx = &sc->rx_data;
if (data_rx->xfer != NULL) {
usbd_free_xfer(data_rx->xfer);
data_rx->xfer = NULL;
}
data_rx->ni = NULL;
}
static void
upgt_free_tx(struct upgt_softc *sc)
{
int i;
for (i = 0; i < upgt_txbuf; i++) {
struct upgt_data *data_tx = &sc->tx_data[i];
if (data_tx->xfer != NULL) {
usbd_free_xfer(data_tx->xfer);
data_tx->xfer = NULL;
}
data_tx->ni = NULL;
}
}
static void
upgt_free_cmd(struct upgt_softc *sc)
{
struct upgt_data *data_cmd = &sc->cmd_data;
if (data_cmd->xfer != NULL) {
usbd_free_xfer(data_cmd->xfer);
data_cmd->xfer = NULL;
}
}
static device_method_t upgt_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, upgt_match),
DEVMETHOD(device_attach, upgt_attach),
DEVMETHOD(device_detach, upgt_detach),
{ 0, 0 }
};
static driver_t upgt_driver = {
"upgt",
upgt_methods,
sizeof(struct upgt_softc)
};
static devclass_t upgt_devclass;
DRIVER_MODULE(if_upgt, uhub, upgt_driver, upgt_devclass, usbd_driver_load, 0);
MODULE_VERSION(if_upgt, 1);
MODULE_DEPEND(if_upgt, usb, 1, 1, 1);
MODULE_DEPEND(if_upgt, wlan, 1, 1, 1);
MODULE_DEPEND(if_upgt, upgtfw_fw, 1, 1, 1);
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