2523 lines
62 KiB
C
2523 lines
62 KiB
C
/* $FreeBSD$ */
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/*-
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* Copyright (c) 2005, 2006
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* Damien Bergamini <damien.bergamini@free.fr>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/*-
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* Ralink Technology RT2500USB chipset driver
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* http://www.ralinktech.com/
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*/
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#include <sys/param.h>
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#include <sys/sysctl.h>
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#include <sys/sockio.h>
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#include <sys/mbuf.h>
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#include <sys/kernel.h>
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#include <sys/socket.h>
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#include <sys/systm.h>
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#include <sys/malloc.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <sys/endian.h>
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#include <machine/bus.h>
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#include <machine/resource.h>
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#include <sys/rman.h>
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#include <net/bpf.h>
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#include <net/if.h>
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#include <net/if_arp.h>
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#include <net/ethernet.h>
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#include <net/if_dl.h>
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#include <net/if_media.h>
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#include <net/if_types.h>
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#include <net80211/ieee80211_var.h>
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#include <net80211/ieee80211_amrr.h>
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#include <net80211/ieee80211_radiotap.h>
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#include <net80211/ieee80211_regdomain.h>
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#include <dev/usb/usb.h>
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#include <dev/usb/usbdi.h>
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#include <dev/usb/usbdi_util.h>
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#include "usbdevs.h"
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#include <dev/usb/if_uralreg.h>
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#include <dev/usb/if_uralvar.h>
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#ifdef USB_DEBUG
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#define DPRINTF(x) do { if (uraldebug > 0) printf x; } while (0)
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#define DPRINTFN(n, x) do { if (uraldebug >= (n)) printf x; } while (0)
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int uraldebug = 0;
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SYSCTL_NODE(_hw_usb, OID_AUTO, ural, CTLFLAG_RW, 0, "USB ural");
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SYSCTL_INT(_hw_usb_ural, OID_AUTO, debug, CTLFLAG_RW, &uraldebug, 0,
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"ural debug level");
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#else
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#define DPRINTF(x)
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#define DPRINTFN(n, x)
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#endif
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#define URAL_RSSI(rssi) \
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((rssi) > (RAL_NOISE_FLOOR + RAL_RSSI_CORR) ? \
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((rssi) - (RAL_NOISE_FLOOR + RAL_RSSI_CORR)) : 0)
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/* various supported device vendors/products */
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static const struct usb_devno ural_devs[] = {
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{ USB_VENDOR_ASUS, USB_PRODUCT_ASUS_WL167G },
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{ USB_VENDOR_ASUS, USB_PRODUCT_RALINK_RT2570 },
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{ USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5D7050 },
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{ USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5D7051 },
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{ USB_VENDOR_CONCEPTRONIC2, USB_PRODUCT_CONCEPTRONIC2_C54RU },
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{ USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DWLG122 },
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{ USB_VENDOR_GIGABYTE, USB_PRODUCT_GIGABYTE_GNWBKG },
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{ USB_VENDOR_GIGABYTE, USB_PRODUCT_GIGABYTE_GN54G },
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{ USB_VENDOR_GUILLEMOT, USB_PRODUCT_GUILLEMOT_HWGUSB254 },
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{ USB_VENDOR_CISCOLINKSYS, USB_PRODUCT_CISCOLINKSYS_WUSB54G },
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{ USB_VENDOR_CISCOLINKSYS, USB_PRODUCT_CISCOLINKSYS_WUSB54GP },
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{ USB_VENDOR_CISCOLINKSYS, USB_PRODUCT_CISCOLINKSYS_HU200TS },
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{ USB_VENDOR_MELCO, USB_PRODUCT_MELCO_KG54 },
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{ USB_VENDOR_MELCO, USB_PRODUCT_MELCO_KG54AI },
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{ USB_VENDOR_MELCO, USB_PRODUCT_MELCO_KG54YB },
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{ USB_VENDOR_MELCO, USB_PRODUCT_MELCO_NINWIFI },
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{ USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2570 },
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{ USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2570_2 },
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{ USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2570_3 },
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{ USB_VENDOR_NOVATECH, USB_PRODUCT_NOVATECH_NV902 },
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{ USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2570 },
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{ USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2570_2 },
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{ USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2570_3 },
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{ USB_VENDOR_SIEMENS2, USB_PRODUCT_SIEMENS2_WL54G },
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{ USB_VENDOR_SMC, USB_PRODUCT_SMC_2862WG },
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{ USB_VENDOR_SPHAIRON, USB_PRODUCT_SPHAIRON_UB801R},
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{ USB_VENDOR_SURECOM, USB_PRODUCT_SURECOM_RT2570 },
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{ USB_VENDOR_VTECH, USB_PRODUCT_VTECH_RT2570 },
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{ USB_VENDOR_ZINWELL, USB_PRODUCT_ZINWELL_RT2570 }
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};
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MODULE_DEPEND(ural, wlan, 1, 1, 1);
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MODULE_DEPEND(ural, wlan_amrr, 1, 1, 1);
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MODULE_DEPEND(ural, usb, 1, 1, 1);
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static int ural_alloc_tx_list(struct ural_softc *);
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static void ural_free_tx_list(struct ural_softc *);
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static int ural_alloc_rx_list(struct ural_softc *);
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static void ural_free_rx_list(struct ural_softc *);
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static int ural_media_change(struct ifnet *);
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static void ural_task(void *);
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static void ural_scantask(void *);
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static int ural_newstate(struct ieee80211com *,
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enum ieee80211_state, int);
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static int ural_rxrate(struct ural_rx_desc *);
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static void ural_txeof(usbd_xfer_handle, usbd_private_handle,
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usbd_status);
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static void ural_rxeof(usbd_xfer_handle, usbd_private_handle,
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usbd_status);
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static int ural_ack_rate(struct ieee80211com *, int);
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static uint16_t ural_txtime(int, int, uint32_t);
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static uint8_t ural_plcp_signal(int);
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static void ural_setup_tx_desc(struct ural_softc *,
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struct ural_tx_desc *, uint32_t, int, int);
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static int ural_tx_bcn(struct ural_softc *, struct mbuf *,
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struct ieee80211_node *);
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static int ural_tx_mgt(struct ural_softc *, struct mbuf *,
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struct ieee80211_node *);
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static int ural_tx_data(struct ural_softc *, struct mbuf *,
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struct ieee80211_node *);
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static void ural_start(struct ifnet *);
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static void ural_watchdog(void *);
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static int ural_reset(struct ifnet *);
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static int ural_ioctl(struct ifnet *, u_long, caddr_t);
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static void ural_set_testmode(struct ural_softc *);
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static void ural_eeprom_read(struct ural_softc *, uint16_t, void *,
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int);
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static uint16_t ural_read(struct ural_softc *, uint16_t);
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static void ural_read_multi(struct ural_softc *, uint16_t, void *,
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int);
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static void ural_write(struct ural_softc *, uint16_t, uint16_t);
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static void ural_write_multi(struct ural_softc *, uint16_t, void *,
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int) __unused;
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static void ural_bbp_write(struct ural_softc *, uint8_t, uint8_t);
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static uint8_t ural_bbp_read(struct ural_softc *, uint8_t);
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static void ural_rf_write(struct ural_softc *, uint8_t, uint32_t);
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static void ural_scan_start(struct ieee80211com *);
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static void ural_scan_end(struct ieee80211com *);
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static void ural_set_channel(struct ieee80211com *);
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static void ural_set_chan(struct ural_softc *,
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struct ieee80211_channel *);
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static void ural_disable_rf_tune(struct ural_softc *);
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static void ural_enable_tsf_sync(struct ural_softc *);
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static void ural_update_slot(struct ifnet *);
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static void ural_set_txpreamble(struct ural_softc *);
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static void ural_set_basicrates(struct ural_softc *);
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static void ural_set_bssid(struct ural_softc *, const uint8_t *);
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static void ural_set_macaddr(struct ural_softc *, uint8_t *);
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static void ural_update_promisc(struct ural_softc *);
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static const char *ural_get_rf(int);
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static void ural_read_eeprom(struct ural_softc *);
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static int ural_bbp_init(struct ural_softc *);
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static void ural_set_txantenna(struct ural_softc *, int);
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static void ural_set_rxantenna(struct ural_softc *, int);
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static void ural_init(void *);
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static void ural_stop(void *);
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static int ural_raw_xmit(struct ieee80211_node *, struct mbuf *,
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const struct ieee80211_bpf_params *);
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static void ural_amrr_start(struct ural_softc *,
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struct ieee80211_node *);
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static void ural_amrr_timeout(void *);
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static void ural_amrr_update(usbd_xfer_handle, usbd_private_handle,
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usbd_status status);
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/*
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* Default values for MAC registers; values taken from the reference driver.
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*/
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static const struct {
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uint16_t reg;
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uint16_t val;
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} ural_def_mac[] = {
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{ RAL_TXRX_CSR5, 0x8c8d },
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{ RAL_TXRX_CSR6, 0x8b8a },
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{ RAL_TXRX_CSR7, 0x8687 },
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{ RAL_TXRX_CSR8, 0x0085 },
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{ RAL_MAC_CSR13, 0x1111 },
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{ RAL_MAC_CSR14, 0x1e11 },
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{ RAL_TXRX_CSR21, 0xe78f },
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{ RAL_MAC_CSR9, 0xff1d },
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{ RAL_MAC_CSR11, 0x0002 },
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{ RAL_MAC_CSR22, 0x0053 },
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{ RAL_MAC_CSR15, 0x0000 },
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{ RAL_MAC_CSR8, 0x0780 },
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{ RAL_TXRX_CSR19, 0x0000 },
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{ RAL_TXRX_CSR18, 0x005a },
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{ RAL_PHY_CSR2, 0x0000 },
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{ RAL_TXRX_CSR0, 0x1ec0 },
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{ RAL_PHY_CSR4, 0x000f }
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};
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/*
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* Default values for BBP registers; values taken from the reference driver.
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*/
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static const struct {
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uint8_t reg;
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uint8_t val;
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} ural_def_bbp[] = {
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{ 3, 0x02 },
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{ 4, 0x19 },
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{ 14, 0x1c },
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{ 15, 0x30 },
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{ 16, 0xac },
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{ 17, 0x48 },
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{ 18, 0x18 },
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{ 19, 0xff },
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{ 20, 0x1e },
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{ 21, 0x08 },
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{ 22, 0x08 },
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{ 23, 0x08 },
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{ 24, 0x80 },
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{ 25, 0x50 },
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{ 26, 0x08 },
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{ 27, 0x23 },
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{ 30, 0x10 },
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{ 31, 0x2b },
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{ 32, 0xb9 },
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{ 34, 0x12 },
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{ 35, 0x50 },
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{ 39, 0xc4 },
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{ 40, 0x02 },
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{ 41, 0x60 },
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{ 53, 0x10 },
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{ 54, 0x18 },
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{ 56, 0x08 },
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{ 57, 0x10 },
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{ 58, 0x08 },
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{ 61, 0x60 },
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{ 62, 0x10 },
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{ 75, 0xff }
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};
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/*
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* Default values for RF register R2 indexed by channel numbers.
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*/
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static const uint32_t ural_rf2522_r2[] = {
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0x307f6, 0x307fb, 0x30800, 0x30805, 0x3080a, 0x3080f, 0x30814,
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0x30819, 0x3081e, 0x30823, 0x30828, 0x3082d, 0x30832, 0x3083e
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};
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static const uint32_t ural_rf2523_r2[] = {
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0x00327, 0x00328, 0x00329, 0x0032a, 0x0032b, 0x0032c, 0x0032d,
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0x0032e, 0x0032f, 0x00340, 0x00341, 0x00342, 0x00343, 0x00346
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};
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static const uint32_t ural_rf2524_r2[] = {
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0x00327, 0x00328, 0x00329, 0x0032a, 0x0032b, 0x0032c, 0x0032d,
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0x0032e, 0x0032f, 0x00340, 0x00341, 0x00342, 0x00343, 0x00346
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};
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static const uint32_t ural_rf2525_r2[] = {
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0x20327, 0x20328, 0x20329, 0x2032a, 0x2032b, 0x2032c, 0x2032d,
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0x2032e, 0x2032f, 0x20340, 0x20341, 0x20342, 0x20343, 0x20346
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};
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static const uint32_t ural_rf2525_hi_r2[] = {
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0x2032f, 0x20340, 0x20341, 0x20342, 0x20343, 0x20344, 0x20345,
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0x20346, 0x20347, 0x20348, 0x20349, 0x2034a, 0x2034b, 0x2034e
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};
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static const uint32_t ural_rf2525e_r2[] = {
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0x2044d, 0x2044e, 0x2044f, 0x20460, 0x20461, 0x20462, 0x20463,
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0x20464, 0x20465, 0x20466, 0x20467, 0x20468, 0x20469, 0x2046b
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};
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static const uint32_t ural_rf2526_hi_r2[] = {
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0x0022a, 0x0022b, 0x0022b, 0x0022c, 0x0022c, 0x0022d, 0x0022d,
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0x0022e, 0x0022e, 0x0022f, 0x0022d, 0x00240, 0x00240, 0x00241
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};
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static const uint32_t ural_rf2526_r2[] = {
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0x00226, 0x00227, 0x00227, 0x00228, 0x00228, 0x00229, 0x00229,
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0x0022a, 0x0022a, 0x0022b, 0x0022b, 0x0022c, 0x0022c, 0x0022d
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};
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/*
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* For dual-band RF, RF registers R1 and R4 also depend on channel number;
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* values taken from the reference driver.
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*/
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static const struct {
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uint8_t chan;
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uint32_t r1;
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uint32_t r2;
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uint32_t r4;
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} ural_rf5222[] = {
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{ 1, 0x08808, 0x0044d, 0x00282 },
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{ 2, 0x08808, 0x0044e, 0x00282 },
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{ 3, 0x08808, 0x0044f, 0x00282 },
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{ 4, 0x08808, 0x00460, 0x00282 },
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{ 5, 0x08808, 0x00461, 0x00282 },
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{ 6, 0x08808, 0x00462, 0x00282 },
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{ 7, 0x08808, 0x00463, 0x00282 },
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{ 8, 0x08808, 0x00464, 0x00282 },
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{ 9, 0x08808, 0x00465, 0x00282 },
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{ 10, 0x08808, 0x00466, 0x00282 },
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{ 11, 0x08808, 0x00467, 0x00282 },
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{ 12, 0x08808, 0x00468, 0x00282 },
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{ 13, 0x08808, 0x00469, 0x00282 },
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{ 14, 0x08808, 0x0046b, 0x00286 },
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{ 36, 0x08804, 0x06225, 0x00287 },
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{ 40, 0x08804, 0x06226, 0x00287 },
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{ 44, 0x08804, 0x06227, 0x00287 },
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{ 48, 0x08804, 0x06228, 0x00287 },
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{ 52, 0x08804, 0x06229, 0x00287 },
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{ 56, 0x08804, 0x0622a, 0x00287 },
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{ 60, 0x08804, 0x0622b, 0x00287 },
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{ 64, 0x08804, 0x0622c, 0x00287 },
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{ 100, 0x08804, 0x02200, 0x00283 },
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{ 104, 0x08804, 0x02201, 0x00283 },
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{ 108, 0x08804, 0x02202, 0x00283 },
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{ 112, 0x08804, 0x02203, 0x00283 },
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{ 116, 0x08804, 0x02204, 0x00283 },
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{ 120, 0x08804, 0x02205, 0x00283 },
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{ 124, 0x08804, 0x02206, 0x00283 },
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{ 128, 0x08804, 0x02207, 0x00283 },
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{ 132, 0x08804, 0x02208, 0x00283 },
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{ 136, 0x08804, 0x02209, 0x00283 },
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{ 140, 0x08804, 0x0220a, 0x00283 },
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{ 149, 0x08808, 0x02429, 0x00281 },
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{ 153, 0x08808, 0x0242b, 0x00281 },
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{ 157, 0x08808, 0x0242d, 0x00281 },
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{ 161, 0x08808, 0x0242f, 0x00281 }
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};
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static device_probe_t ural_match;
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static device_attach_t ural_attach;
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static device_detach_t ural_detach;
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static device_method_t ural_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, ural_match),
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DEVMETHOD(device_attach, ural_attach),
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DEVMETHOD(device_detach, ural_detach),
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{ 0, 0 }
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};
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static driver_t ural_driver = {
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"ural",
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ural_methods,
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sizeof(struct ural_softc)
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};
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static devclass_t ural_devclass;
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DRIVER_MODULE(ural, uhub, ural_driver, ural_devclass, usbd_driver_load, 0);
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static int
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ural_match(device_t self)
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{
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struct usb_attach_arg *uaa = device_get_ivars(self);
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if (uaa->iface != NULL)
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return UMATCH_NONE;
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return (usb_lookup(ural_devs, uaa->vendor, uaa->product) != NULL) ?
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UMATCH_VENDOR_PRODUCT : UMATCH_NONE;
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}
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static int
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ural_attach(device_t self)
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{
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struct ural_softc *sc = device_get_softc(self);
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struct usb_attach_arg *uaa = device_get_ivars(self);
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struct ifnet *ifp;
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struct ieee80211com *ic = &sc->sc_ic;
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usb_interface_descriptor_t *id;
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usb_endpoint_descriptor_t *ed;
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usbd_status error;
|
|
int i, bands;
|
|
|
|
sc->sc_udev = uaa->device;
|
|
sc->sc_dev = self;
|
|
|
|
if (usbd_set_config_no(sc->sc_udev, RAL_CONFIG_NO, 0) != 0) {
|
|
printf("%s: could not set configuration no\n",
|
|
device_get_nameunit(sc->sc_dev));
|
|
return ENXIO;
|
|
}
|
|
|
|
/* get the first interface handle */
|
|
error = usbd_device2interface_handle(sc->sc_udev, RAL_IFACE_INDEX,
|
|
&sc->sc_iface);
|
|
if (error != 0) {
|
|
printf("%s: could not get interface handle\n",
|
|
device_get_nameunit(sc->sc_dev));
|
|
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) {
|
|
printf("%s: no endpoint descriptor for %d\n",
|
|
device_get_nameunit(sc->sc_dev), i);
|
|
return ENXIO;
|
|
}
|
|
|
|
if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
|
|
UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK)
|
|
sc->sc_rx_no = ed->bEndpointAddress;
|
|
else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
|
|
UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK)
|
|
sc->sc_tx_no = ed->bEndpointAddress;
|
|
}
|
|
if (sc->sc_rx_no == -1 || sc->sc_tx_no == -1) {
|
|
printf("%s: missing endpoint\n",
|
|
device_get_nameunit(sc->sc_dev));
|
|
return ENXIO;
|
|
}
|
|
|
|
mtx_init(&sc->sc_mtx, device_get_nameunit(sc->sc_dev), MTX_NETWORK_LOCK,
|
|
MTX_DEF | MTX_RECURSE);
|
|
|
|
usb_init_task(&sc->sc_task, ural_task, sc);
|
|
usb_init_task(&sc->sc_scantask, ural_scantask, sc);
|
|
callout_init(&sc->watchdog_ch, 0);
|
|
callout_init(&sc->amrr_ch, 0);
|
|
|
|
/* retrieve RT2570 rev. no */
|
|
sc->asic_rev = ural_read(sc, RAL_MAC_CSR0);
|
|
|
|
/* retrieve MAC address and various other things from EEPROM */
|
|
ural_read_eeprom(sc);
|
|
|
|
printf("%s: MAC/BBP RT2570 (rev 0x%02x), RF %s\n",
|
|
device_get_nameunit(sc->sc_dev), sc->asic_rev,
|
|
ural_get_rf(sc->rf_rev));
|
|
|
|
ifp = sc->sc_ifp = if_alloc(IFT_ETHER);
|
|
if (ifp == NULL) {
|
|
printf("%s: can not if_alloc()\n",
|
|
device_get_nameunit(sc->sc_dev));
|
|
return ENXIO;
|
|
}
|
|
|
|
ifp->if_softc = sc;
|
|
if_initname(ifp, "ural", 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 = ural_init;
|
|
ifp->if_ioctl = ural_ioctl;
|
|
ifp->if_start = ural_start;
|
|
IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
|
|
ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
|
|
IFQ_SET_READY(&ifp->if_snd);
|
|
|
|
ic->ic_ifp = ifp;
|
|
ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
|
|
ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */
|
|
ic->ic_state = IEEE80211_S_INIT;
|
|
|
|
/* set device capabilities */
|
|
ic->ic_caps =
|
|
IEEE80211_C_IBSS /* IBSS mode supported */
|
|
| IEEE80211_C_MONITOR /* monitor mode supported */
|
|
| IEEE80211_C_HOSTAP /* HostAp mode supported */
|
|
| IEEE80211_C_TXPMGT /* tx power management */
|
|
| IEEE80211_C_SHPREAMBLE /* short preamble supported */
|
|
| IEEE80211_C_SHSLOT /* short slot time supported */
|
|
| IEEE80211_C_BGSCAN /* bg scanning supported */
|
|
| IEEE80211_C_WPA /* 802.11i */
|
|
;
|
|
|
|
bands = 0;
|
|
setbit(&bands, IEEE80211_MODE_11B);
|
|
setbit(&bands, IEEE80211_MODE_11G);
|
|
if (sc->rf_rev == RAL_RF_5222)
|
|
setbit(&bands, IEEE80211_MODE_11A);
|
|
ieee80211_init_channels(ic, 0, CTRY_DEFAULT, bands, 0, 1);
|
|
|
|
ieee80211_ifattach(ic);
|
|
ic->ic_reset = ural_reset;
|
|
/* enable s/w bmiss handling in sta mode */
|
|
ic->ic_flags_ext |= IEEE80211_FEXT_SWBMISS;
|
|
ic->ic_scan_start = ural_scan_start;
|
|
ic->ic_scan_end = ural_scan_end;
|
|
ic->ic_set_channel = ural_set_channel;
|
|
|
|
/* override state transition machine */
|
|
sc->sc_newstate = ic->ic_newstate;
|
|
ic->ic_newstate = ural_newstate;
|
|
ic->ic_raw_xmit = ural_raw_xmit;
|
|
ieee80211_media_init(ic, ural_media_change, ieee80211_media_status);
|
|
|
|
ieee80211_amrr_init(&sc->amrr, ic,
|
|
IEEE80211_AMRR_MIN_SUCCESS_THRESHOLD,
|
|
IEEE80211_AMRR_MAX_SUCCESS_THRESHOLD);
|
|
|
|
bpfattach2(ifp, DLT_IEEE802_11_RADIO,
|
|
sizeof (struct ieee80211_frame) + 64, &sc->sc_drvbpf);
|
|
|
|
sc->sc_rxtap_len = sizeof sc->sc_rxtapu;
|
|
sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len);
|
|
sc->sc_rxtap.wr_ihdr.it_present = htole32(RAL_RX_RADIOTAP_PRESENT);
|
|
|
|
sc->sc_txtap_len = sizeof sc->sc_txtapu;
|
|
sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len);
|
|
sc->sc_txtap.wt_ihdr.it_present = htole32(RAL_TX_RADIOTAP_PRESENT);
|
|
|
|
if (bootverbose)
|
|
ieee80211_announce(ic);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ural_detach(device_t self)
|
|
{
|
|
struct ural_softc *sc = device_get_softc(self);
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct ifnet *ifp = ic->ic_ifp;
|
|
|
|
ural_stop(sc);
|
|
usb_rem_task(sc->sc_udev, &sc->sc_task);
|
|
callout_stop(&sc->watchdog_ch);
|
|
callout_stop(&sc->amrr_ch);
|
|
|
|
if (sc->amrr_xfer != NULL) {
|
|
usbd_free_xfer(sc->amrr_xfer);
|
|
sc->amrr_xfer = NULL;
|
|
}
|
|
|
|
if (sc->sc_rx_pipeh != NULL) {
|
|
usbd_abort_pipe(sc->sc_rx_pipeh);
|
|
usbd_close_pipe(sc->sc_rx_pipeh);
|
|
}
|
|
|
|
if (sc->sc_tx_pipeh != NULL) {
|
|
usbd_abort_pipe(sc->sc_tx_pipeh);
|
|
usbd_close_pipe(sc->sc_tx_pipeh);
|
|
}
|
|
|
|
ural_free_rx_list(sc);
|
|
ural_free_tx_list(sc);
|
|
|
|
bpfdetach(ifp);
|
|
ieee80211_ifdetach(ic);
|
|
if_free(ifp);
|
|
|
|
mtx_destroy(&sc->sc_mtx);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ural_alloc_tx_list(struct ural_softc *sc)
|
|
{
|
|
struct ural_tx_data *data;
|
|
int i, error;
|
|
|
|
sc->tx_queued = 0;
|
|
|
|
for (i = 0; i < RAL_TX_LIST_COUNT; i++) {
|
|
data = &sc->tx_data[i];
|
|
|
|
data->sc = sc;
|
|
|
|
data->xfer = usbd_alloc_xfer(sc->sc_udev);
|
|
if (data->xfer == NULL) {
|
|
printf("%s: could not allocate tx xfer\n",
|
|
device_get_nameunit(sc->sc_dev));
|
|
error = ENOMEM;
|
|
goto fail;
|
|
}
|
|
|
|
data->buf = usbd_alloc_buffer(data->xfer,
|
|
RAL_TX_DESC_SIZE + MCLBYTES);
|
|
if (data->buf == NULL) {
|
|
printf("%s: could not allocate tx buffer\n",
|
|
device_get_nameunit(sc->sc_dev));
|
|
error = ENOMEM;
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
|
|
fail: ural_free_tx_list(sc);
|
|
return error;
|
|
}
|
|
|
|
static void
|
|
ural_free_tx_list(struct ural_softc *sc)
|
|
{
|
|
struct ural_tx_data *data;
|
|
int i;
|
|
|
|
for (i = 0; i < RAL_TX_LIST_COUNT; i++) {
|
|
data = &sc->tx_data[i];
|
|
|
|
if (data->xfer != NULL) {
|
|
usbd_free_xfer(data->xfer);
|
|
data->xfer = NULL;
|
|
}
|
|
|
|
if (data->ni != NULL) {
|
|
ieee80211_free_node(data->ni);
|
|
data->ni = NULL;
|
|
}
|
|
}
|
|
}
|
|
|
|
static int
|
|
ural_alloc_rx_list(struct ural_softc *sc)
|
|
{
|
|
struct ural_rx_data *data;
|
|
int i, error;
|
|
|
|
for (i = 0; i < RAL_RX_LIST_COUNT; i++) {
|
|
data = &sc->rx_data[i];
|
|
|
|
data->sc = sc;
|
|
|
|
data->xfer = usbd_alloc_xfer(sc->sc_udev);
|
|
if (data->xfer == NULL) {
|
|
printf("%s: could not allocate rx xfer\n",
|
|
device_get_nameunit(sc->sc_dev));
|
|
error = ENOMEM;
|
|
goto fail;
|
|
}
|
|
|
|
if (usbd_alloc_buffer(data->xfer, MCLBYTES) == NULL) {
|
|
printf("%s: could not allocate rx buffer\n",
|
|
device_get_nameunit(sc->sc_dev));
|
|
error = ENOMEM;
|
|
goto fail;
|
|
}
|
|
|
|
data->m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR);
|
|
if (data->m == NULL) {
|
|
printf("%s: could not allocate rx mbuf\n",
|
|
device_get_nameunit(sc->sc_dev));
|
|
error = ENOMEM;
|
|
goto fail;
|
|
}
|
|
|
|
data->buf = mtod(data->m, uint8_t *);
|
|
}
|
|
|
|
return 0;
|
|
|
|
fail: ural_free_tx_list(sc);
|
|
return error;
|
|
}
|
|
|
|
static void
|
|
ural_free_rx_list(struct ural_softc *sc)
|
|
{
|
|
struct ural_rx_data *data;
|
|
int i;
|
|
|
|
for (i = 0; i < RAL_RX_LIST_COUNT; i++) {
|
|
data = &sc->rx_data[i];
|
|
|
|
if (data->xfer != NULL) {
|
|
usbd_free_xfer(data->xfer);
|
|
data->xfer = NULL;
|
|
}
|
|
|
|
if (data->m != NULL) {
|
|
m_freem(data->m);
|
|
data->m = NULL;
|
|
}
|
|
}
|
|
}
|
|
|
|
static int
|
|
ural_media_change(struct ifnet *ifp)
|
|
{
|
|
struct ural_softc *sc = ifp->if_softc;
|
|
int error;
|
|
|
|
RAL_LOCK(sc);
|
|
|
|
error = ieee80211_media_change(ifp);
|
|
if (error != ENETRESET) {
|
|
RAL_UNLOCK(sc);
|
|
return error;
|
|
}
|
|
|
|
if ((ifp->if_flags & IFF_UP) &&
|
|
(ifp->if_drv_flags & IFF_DRV_RUNNING))
|
|
ural_init(sc);
|
|
|
|
RAL_UNLOCK(sc);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
ural_task(void *xarg)
|
|
{
|
|
struct ural_softc *sc = xarg;
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
enum ieee80211_state ostate;
|
|
struct ieee80211_node *ni;
|
|
struct mbuf *m;
|
|
|
|
ostate = ic->ic_state;
|
|
|
|
RAL_LOCK(sc);
|
|
switch (sc->sc_state) {
|
|
case IEEE80211_S_INIT:
|
|
if (ostate == IEEE80211_S_RUN) {
|
|
/* abort TSF synchronization */
|
|
ural_write(sc, RAL_TXRX_CSR19, 0);
|
|
|
|
/* force tx led to stop blinking */
|
|
ural_write(sc, RAL_MAC_CSR20, 0);
|
|
}
|
|
break;
|
|
|
|
case IEEE80211_S_RUN:
|
|
ni = ic->ic_bss;
|
|
|
|
if (ic->ic_opmode != IEEE80211_M_MONITOR) {
|
|
ural_update_slot(ic->ic_ifp);
|
|
ural_set_txpreamble(sc);
|
|
ural_set_basicrates(sc);
|
|
ural_set_bssid(sc, ni->ni_bssid);
|
|
}
|
|
|
|
if (ic->ic_opmode == IEEE80211_M_HOSTAP ||
|
|
ic->ic_opmode == IEEE80211_M_IBSS) {
|
|
m = ieee80211_beacon_alloc(ni, &sc->sc_bo);
|
|
if (m == NULL) {
|
|
printf("%s: could not allocate beacon\n",
|
|
device_get_nameunit(sc->sc_dev));
|
|
return;
|
|
}
|
|
|
|
if (ural_tx_bcn(sc, m, ni) != 0) {
|
|
printf("%s: could not send beacon\n",
|
|
device_get_nameunit(sc->sc_dev));
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* make tx led blink on tx (controlled by ASIC) */
|
|
ural_write(sc, RAL_MAC_CSR20, 1);
|
|
|
|
if (ic->ic_opmode != IEEE80211_M_MONITOR)
|
|
ural_enable_tsf_sync(sc);
|
|
|
|
/* enable automatic rate adaptation in STA mode */
|
|
if (ic->ic_opmode == IEEE80211_M_STA &&
|
|
ic->ic_fixed_rate == IEEE80211_FIXED_RATE_NONE)
|
|
ural_amrr_start(sc, ni);
|
|
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
RAL_UNLOCK(sc);
|
|
sc->sc_newstate(ic, sc->sc_state, sc->sc_arg);
|
|
}
|
|
|
|
static void
|
|
ural_scantask(void *arg)
|
|
{
|
|
struct ural_softc *sc = arg;
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct ifnet *ifp = ic->ic_ifp;
|
|
|
|
RAL_LOCK(sc);
|
|
if (sc->sc_scan_action == URAL_SCAN_START) {
|
|
/* abort TSF synchronization */
|
|
ural_write(sc, RAL_TXRX_CSR19, 0);
|
|
ural_set_bssid(sc, ifp->if_broadcastaddr);
|
|
} else if (sc->sc_scan_action == URAL_SET_CHANNEL) {
|
|
mtx_lock(&Giant);
|
|
ural_set_chan(sc, ic->ic_curchan);
|
|
mtx_unlock(&Giant);
|
|
} else {
|
|
ural_enable_tsf_sync(sc);
|
|
/* XXX keep local copy */
|
|
ural_set_bssid(sc, ic->ic_bss->ni_bssid);
|
|
}
|
|
RAL_UNLOCK(sc);
|
|
}
|
|
|
|
static int
|
|
ural_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg)
|
|
{
|
|
struct ural_softc *sc = ic->ic_ifp->if_softc;
|
|
|
|
callout_stop(&sc->amrr_ch);
|
|
|
|
/* do it in a process context */
|
|
sc->sc_state = nstate;
|
|
sc->sc_arg = arg;
|
|
|
|
usb_rem_task(sc->sc_udev, &sc->sc_task);
|
|
if (nstate == IEEE80211_S_INIT)
|
|
sc->sc_newstate(ic, nstate, arg);
|
|
else
|
|
usb_add_task(sc->sc_udev, &sc->sc_task, USB_TASKQ_DRIVER);
|
|
return 0;
|
|
}
|
|
|
|
/* quickly determine if a given rate is CCK or OFDM */
|
|
#define RAL_RATE_IS_OFDM(rate) ((rate) >= 12 && (rate) != 22)
|
|
|
|
#define RAL_ACK_SIZE 14 /* 10 + 4(FCS) */
|
|
#define RAL_CTS_SIZE 14 /* 10 + 4(FCS) */
|
|
|
|
#define RAL_SIFS 10 /* us */
|
|
|
|
#define RAL_RXTX_TURNAROUND 5 /* us */
|
|
|
|
/*
|
|
* This function is only used by the Rx radiotap code.
|
|
*/
|
|
static int
|
|
ural_rxrate(struct ural_rx_desc *desc)
|
|
{
|
|
if (le32toh(desc->flags) & RAL_RX_OFDM) {
|
|
/* reverse function of ural_plcp_signal */
|
|
switch (desc->rate) {
|
|
case 0xb: return 12;
|
|
case 0xf: return 18;
|
|
case 0xa: return 24;
|
|
case 0xe: return 36;
|
|
case 0x9: return 48;
|
|
case 0xd: return 72;
|
|
case 0x8: return 96;
|
|
case 0xc: return 108;
|
|
}
|
|
} else {
|
|
if (desc->rate == 10)
|
|
return 2;
|
|
if (desc->rate == 20)
|
|
return 4;
|
|
if (desc->rate == 55)
|
|
return 11;
|
|
if (desc->rate == 110)
|
|
return 22;
|
|
}
|
|
return 2; /* should not get there */
|
|
}
|
|
|
|
static void
|
|
ural_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
|
|
{
|
|
struct ural_tx_data *data = priv;
|
|
struct ural_softc *sc = data->sc;
|
|
struct ifnet *ifp = sc->sc_ic.ic_ifp;
|
|
|
|
if (data->m->m_flags & M_TXCB)
|
|
ieee80211_process_callback(data->ni, data->m,
|
|
status == USBD_NORMAL_COMPLETION ? 0 : ETIMEDOUT);
|
|
if (status != USBD_NORMAL_COMPLETION) {
|
|
if (status == USBD_NOT_STARTED || status == USBD_CANCELLED)
|
|
return;
|
|
|
|
printf("%s: could not transmit buffer: %s\n",
|
|
device_get_nameunit(sc->sc_dev), usbd_errstr(status));
|
|
|
|
if (status == USBD_STALLED)
|
|
usbd_clear_endpoint_stall_async(sc->sc_rx_pipeh);
|
|
|
|
ifp->if_oerrors++;
|
|
/* XXX mbuf leak? */
|
|
return;
|
|
}
|
|
|
|
m_freem(data->m);
|
|
data->m = NULL;
|
|
ieee80211_free_node(data->ni);
|
|
data->ni = NULL;
|
|
|
|
sc->tx_queued--;
|
|
ifp->if_opackets++;
|
|
|
|
DPRINTFN(10, ("tx done\n"));
|
|
|
|
sc->sc_tx_timer = 0;
|
|
ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
|
|
ural_start(ifp);
|
|
}
|
|
|
|
static void
|
|
ural_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
|
|
{
|
|
struct ural_rx_data *data = priv;
|
|
struct ural_softc *sc = data->sc;
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct ifnet *ifp = ic->ic_ifp;
|
|
struct ural_rx_desc *desc;
|
|
struct ieee80211_frame *wh;
|
|
struct ieee80211_node *ni;
|
|
struct mbuf *mnew, *m;
|
|
int len;
|
|
|
|
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);
|
|
|
|
if (len < RAL_RX_DESC_SIZE + IEEE80211_MIN_LEN) {
|
|
DPRINTF(("%s: xfer too short %d\n", device_get_nameunit(sc->sc_dev),
|
|
len));
|
|
ifp->if_ierrors++;
|
|
goto skip;
|
|
}
|
|
|
|
/* rx descriptor is located at the end */
|
|
desc = (struct ural_rx_desc *)(data->buf + len - RAL_RX_DESC_SIZE);
|
|
|
|
if ((le32toh(desc->flags) & RAL_RX_PHY_ERROR) ||
|
|
(le32toh(desc->flags) & RAL_RX_CRC_ERROR)) {
|
|
/*
|
|
* This should not happen since we did not request to receive
|
|
* those frames when we filled RAL_TXRX_CSR2.
|
|
*/
|
|
DPRINTFN(5, ("PHY or CRC error\n"));
|
|
ifp->if_ierrors++;
|
|
goto skip;
|
|
}
|
|
|
|
mnew = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR);
|
|
if (mnew == NULL) {
|
|
ifp->if_ierrors++;
|
|
goto skip;
|
|
}
|
|
|
|
m = data->m;
|
|
data->m = mnew;
|
|
data->buf = mtod(data->m, uint8_t *);
|
|
|
|
/* finalize mbuf */
|
|
m->m_pkthdr.rcvif = ifp;
|
|
m->m_pkthdr.len = m->m_len = (le32toh(desc->flags) >> 16) & 0xfff;
|
|
|
|
if (bpf_peers_present(sc->sc_drvbpf)) {
|
|
struct ural_rx_radiotap_header *tap = &sc->sc_rxtap;
|
|
|
|
tap->wr_flags = IEEE80211_RADIOTAP_F_FCS;
|
|
tap->wr_rate = ural_rxrate(desc);
|
|
tap->wr_chan_freq = htole16(ic->ic_curchan->ic_freq);
|
|
tap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags);
|
|
tap->wr_antenna = sc->rx_ant;
|
|
tap->wr_antsignal = URAL_RSSI(desc->rssi);
|
|
|
|
bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_rxtap_len, m);
|
|
}
|
|
|
|
/* Strip trailing 802.11 MAC FCS. */
|
|
m_adj(m, -IEEE80211_CRC_LEN);
|
|
|
|
wh = mtod(m, struct ieee80211_frame *);
|
|
ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh);
|
|
|
|
/* send the frame to the 802.11 layer */
|
|
ieee80211_input(ic, m, ni, URAL_RSSI(desc->rssi), RAL_NOISE_FLOOR, 0);
|
|
|
|
/* node is no longer needed */
|
|
ieee80211_free_node(ni);
|
|
|
|
DPRINTFN(15, ("rx done\n"));
|
|
|
|
skip: /* setup a new transfer */
|
|
usbd_setup_xfer(xfer, sc->sc_rx_pipeh, data, data->buf, MCLBYTES,
|
|
USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, ural_rxeof);
|
|
usbd_transfer(xfer);
|
|
}
|
|
|
|
/*
|
|
* Return the expected ack rate for a frame transmitted at rate `rate'.
|
|
* XXX: this should depend on the destination node basic rate set.
|
|
*/
|
|
static int
|
|
ural_ack_rate(struct ieee80211com *ic, int rate)
|
|
{
|
|
switch (rate) {
|
|
/* CCK rates */
|
|
case 2:
|
|
return 2;
|
|
case 4:
|
|
case 11:
|
|
case 22:
|
|
return (ic->ic_curmode == IEEE80211_MODE_11B) ? 4 : rate;
|
|
|
|
/* OFDM rates */
|
|
case 12:
|
|
case 18:
|
|
return 12;
|
|
case 24:
|
|
case 36:
|
|
return 24;
|
|
case 48:
|
|
case 72:
|
|
case 96:
|
|
case 108:
|
|
return 48;
|
|
}
|
|
|
|
/* default to 1Mbps */
|
|
return 2;
|
|
}
|
|
|
|
/*
|
|
* Compute the duration (in us) needed to transmit `len' bytes at rate `rate'.
|
|
* The function automatically determines the operating mode depending on the
|
|
* given rate. `flags' indicates whether short preamble is in use or not.
|
|
*/
|
|
static uint16_t
|
|
ural_txtime(int len, int rate, uint32_t flags)
|
|
{
|
|
uint16_t txtime;
|
|
|
|
if (RAL_RATE_IS_OFDM(rate)) {
|
|
/* IEEE Std 802.11a-1999, pp. 37 */
|
|
txtime = (8 + 4 * len + 3 + rate - 1) / rate;
|
|
txtime = 16 + 4 + 4 * txtime + 6;
|
|
} else {
|
|
/* IEEE Std 802.11b-1999, pp. 28 */
|
|
txtime = (16 * len + rate - 1) / rate;
|
|
if (rate != 2 && (flags & IEEE80211_F_SHPREAMBLE))
|
|
txtime += 72 + 24;
|
|
else
|
|
txtime += 144 + 48;
|
|
}
|
|
return txtime;
|
|
}
|
|
|
|
static uint8_t
|
|
ural_plcp_signal(int rate)
|
|
{
|
|
switch (rate) {
|
|
/* CCK rates (returned values are device-dependent) */
|
|
case 2: return 0x0;
|
|
case 4: return 0x1;
|
|
case 11: return 0x2;
|
|
case 22: return 0x3;
|
|
|
|
/* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */
|
|
case 12: return 0xb;
|
|
case 18: return 0xf;
|
|
case 24: return 0xa;
|
|
case 36: return 0xe;
|
|
case 48: return 0x9;
|
|
case 72: return 0xd;
|
|
case 96: return 0x8;
|
|
case 108: return 0xc;
|
|
|
|
/* unsupported rates (should not get there) */
|
|
default: return 0xff;
|
|
}
|
|
}
|
|
|
|
static void
|
|
ural_setup_tx_desc(struct ural_softc *sc, struct ural_tx_desc *desc,
|
|
uint32_t flags, int len, int rate)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
uint16_t plcp_length;
|
|
int remainder;
|
|
|
|
desc->flags = htole32(flags);
|
|
desc->flags |= htole32(RAL_TX_NEWSEQ);
|
|
desc->flags |= htole32(len << 16);
|
|
|
|
desc->wme = htole16(RAL_AIFSN(2) | RAL_LOGCWMIN(3) | RAL_LOGCWMAX(5));
|
|
desc->wme |= htole16(RAL_IVOFFSET(sizeof (struct ieee80211_frame)));
|
|
|
|
/* setup PLCP fields */
|
|
desc->plcp_signal = ural_plcp_signal(rate);
|
|
desc->plcp_service = 4;
|
|
|
|
len += IEEE80211_CRC_LEN;
|
|
if (RAL_RATE_IS_OFDM(rate)) {
|
|
desc->flags |= htole32(RAL_TX_OFDM);
|
|
|
|
plcp_length = len & 0xfff;
|
|
desc->plcp_length_hi = plcp_length >> 6;
|
|
desc->plcp_length_lo = plcp_length & 0x3f;
|
|
} else {
|
|
plcp_length = (16 * len + rate - 1) / rate;
|
|
if (rate == 22) {
|
|
remainder = (16 * len) % 22;
|
|
if (remainder != 0 && remainder < 7)
|
|
desc->plcp_service |= RAL_PLCP_LENGEXT;
|
|
}
|
|
desc->plcp_length_hi = plcp_length >> 8;
|
|
desc->plcp_length_lo = plcp_length & 0xff;
|
|
|
|
if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE))
|
|
desc->plcp_signal |= 0x08;
|
|
}
|
|
|
|
desc->iv = 0;
|
|
desc->eiv = 0;
|
|
}
|
|
|
|
#define RAL_TX_TIMEOUT 5000
|
|
|
|
static int
|
|
ural_tx_bcn(struct ural_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
|
|
{
|
|
struct ural_tx_desc *desc;
|
|
usbd_xfer_handle xfer;
|
|
uint8_t cmd = 0;
|
|
usbd_status error;
|
|
uint8_t *buf;
|
|
int xferlen, rate;
|
|
|
|
rate = IEEE80211_IS_CHAN_5GHZ(ni->ni_chan) ? 12 : 2;
|
|
|
|
xfer = usbd_alloc_xfer(sc->sc_udev);
|
|
if (xfer == NULL)
|
|
return ENOMEM;
|
|
|
|
/* xfer length needs to be a multiple of two! */
|
|
xferlen = (RAL_TX_DESC_SIZE + m0->m_pkthdr.len + 1) & ~1;
|
|
|
|
buf = usbd_alloc_buffer(xfer, xferlen);
|
|
if (buf == NULL) {
|
|
usbd_free_xfer(xfer);
|
|
return ENOMEM;
|
|
}
|
|
|
|
usbd_setup_xfer(xfer, sc->sc_tx_pipeh, NULL, &cmd, sizeof cmd,
|
|
USBD_FORCE_SHORT_XFER, RAL_TX_TIMEOUT, NULL);
|
|
|
|
error = usbd_sync_transfer(xfer);
|
|
if (error != 0) {
|
|
usbd_free_xfer(xfer);
|
|
return error;
|
|
}
|
|
|
|
desc = (struct ural_tx_desc *)buf;
|
|
|
|
m_copydata(m0, 0, m0->m_pkthdr.len, buf + RAL_TX_DESC_SIZE);
|
|
ural_setup_tx_desc(sc, desc, RAL_TX_IFS_NEWBACKOFF | RAL_TX_TIMESTAMP,
|
|
m0->m_pkthdr.len, rate);
|
|
|
|
DPRINTFN(10, ("sending beacon frame len=%u rate=%u xfer len=%u\n",
|
|
m0->m_pkthdr.len, rate, xferlen));
|
|
|
|
usbd_setup_xfer(xfer, sc->sc_tx_pipeh, NULL, buf, xferlen,
|
|
USBD_FORCE_SHORT_XFER | USBD_NO_COPY, RAL_TX_TIMEOUT, NULL);
|
|
|
|
error = usbd_sync_transfer(xfer);
|
|
usbd_free_xfer(xfer);
|
|
|
|
return error;
|
|
}
|
|
|
|
static int
|
|
ural_tx_mgt(struct ural_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct ural_tx_desc *desc;
|
|
struct ural_tx_data *data;
|
|
struct ieee80211_frame *wh;
|
|
struct ieee80211_key *k;
|
|
uint32_t flags = 0;
|
|
uint16_t dur;
|
|
usbd_status error;
|
|
int xferlen, rate;
|
|
|
|
data = &sc->tx_data[0];
|
|
desc = (struct ural_tx_desc *)data->buf;
|
|
|
|
rate = IEEE80211_IS_CHAN_5GHZ(ic->ic_curchan) ? 12 : 2;
|
|
|
|
wh = mtod(m0, struct ieee80211_frame *);
|
|
|
|
if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
|
|
k = ieee80211_crypto_encap(ic, ni, m0);
|
|
if (k == NULL) {
|
|
m_freem(m0);
|
|
return ENOBUFS;
|
|
}
|
|
}
|
|
|
|
data->m = m0;
|
|
data->ni = ni;
|
|
|
|
wh = mtod(m0, struct ieee80211_frame *);
|
|
|
|
if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
|
|
flags |= RAL_TX_ACK;
|
|
|
|
dur = ural_txtime(RAL_ACK_SIZE, rate, ic->ic_flags) + RAL_SIFS;
|
|
*(uint16_t *)wh->i_dur = htole16(dur);
|
|
|
|
/* tell hardware to add timestamp for probe responses */
|
|
if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) ==
|
|
IEEE80211_FC0_TYPE_MGT &&
|
|
(wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) ==
|
|
IEEE80211_FC0_SUBTYPE_PROBE_RESP)
|
|
flags |= RAL_TX_TIMESTAMP;
|
|
}
|
|
|
|
if (bpf_peers_present(sc->sc_drvbpf)) {
|
|
struct ural_tx_radiotap_header *tap = &sc->sc_txtap;
|
|
|
|
tap->wt_flags = 0;
|
|
tap->wt_rate = rate;
|
|
tap->wt_chan_freq = htole16(ic->ic_curchan->ic_freq);
|
|
tap->wt_chan_flags = htole16(ic->ic_curchan->ic_flags);
|
|
tap->wt_antenna = sc->tx_ant;
|
|
|
|
bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_txtap_len, m0);
|
|
}
|
|
|
|
m_copydata(m0, 0, m0->m_pkthdr.len, data->buf + RAL_TX_DESC_SIZE);
|
|
ural_setup_tx_desc(sc, desc, flags, m0->m_pkthdr.len, rate);
|
|
|
|
/* align end on a 2-bytes boundary */
|
|
xferlen = (RAL_TX_DESC_SIZE + m0->m_pkthdr.len + 1) & ~1;
|
|
|
|
/*
|
|
* No space left in the last URB to store the extra 2 bytes, force
|
|
* sending of another URB.
|
|
*/
|
|
if ((xferlen % 64) == 0)
|
|
xferlen += 2;
|
|
|
|
DPRINTFN(10, ("sending mgt frame len=%u rate=%u xfer len=%u\n",
|
|
m0->m_pkthdr.len, rate, xferlen));
|
|
|
|
usbd_setup_xfer(data->xfer, sc->sc_tx_pipeh, data, data->buf,
|
|
xferlen, USBD_FORCE_SHORT_XFER | USBD_NO_COPY, RAL_TX_TIMEOUT,
|
|
ural_txeof);
|
|
|
|
error = usbd_transfer(data->xfer);
|
|
if (error != USBD_NORMAL_COMPLETION && error != USBD_IN_PROGRESS) {
|
|
m_freem(m0);
|
|
data->m = NULL;
|
|
data->ni = NULL;
|
|
return error;
|
|
}
|
|
|
|
sc->tx_queued++;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ural_tx_raw(struct ural_softc *sc, struct mbuf *m0, struct ieee80211_node *ni,
|
|
const struct ieee80211_bpf_params *params)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct ural_tx_desc *desc;
|
|
struct ural_tx_data *data;
|
|
uint32_t flags;
|
|
usbd_status error;
|
|
int xferlen, rate;
|
|
|
|
data = &sc->tx_data[0];
|
|
desc = (struct ural_tx_desc *)data->buf;
|
|
|
|
rate = params->ibp_rate0 & IEEE80211_RATE_VAL;
|
|
/* XXX validate */
|
|
if (rate == 0) {
|
|
m_freem(m0);
|
|
return EINVAL;
|
|
}
|
|
|
|
if (bpf_peers_present(sc->sc_drvbpf)) {
|
|
struct ural_tx_radiotap_header *tap = &sc->sc_txtap;
|
|
|
|
tap->wt_flags = 0;
|
|
tap->wt_rate = rate;
|
|
tap->wt_chan_freq = htole16(ic->ic_curchan->ic_freq);
|
|
tap->wt_chan_flags = htole16(ic->ic_curchan->ic_flags);
|
|
tap->wt_antenna = sc->tx_ant;
|
|
|
|
bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_txtap_len, m0);
|
|
}
|
|
|
|
data->m = m0;
|
|
data->ni = ni;
|
|
|
|
flags = 0;
|
|
if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0)
|
|
flags |= RAL_TX_ACK;
|
|
|
|
m_copydata(m0, 0, m0->m_pkthdr.len, data->buf + RAL_TX_DESC_SIZE);
|
|
/* XXX need to setup descriptor ourself */
|
|
ural_setup_tx_desc(sc, desc, flags, m0->m_pkthdr.len, rate);
|
|
|
|
/* align end on a 2-bytes boundary */
|
|
xferlen = (RAL_TX_DESC_SIZE + m0->m_pkthdr.len + 1) & ~1;
|
|
|
|
/*
|
|
* No space left in the last URB to store the extra 2 bytes, force
|
|
* sending of another URB.
|
|
*/
|
|
if ((xferlen % 64) == 0)
|
|
xferlen += 2;
|
|
|
|
DPRINTFN(10, ("sending raw frame len=%u rate=%u xfer len=%u\n",
|
|
m0->m_pkthdr.len, rate, xferlen));
|
|
|
|
usbd_setup_xfer(data->xfer, sc->sc_tx_pipeh, data, data->buf,
|
|
xferlen, USBD_FORCE_SHORT_XFER | USBD_NO_COPY, RAL_TX_TIMEOUT,
|
|
ural_txeof);
|
|
|
|
error = usbd_transfer(data->xfer);
|
|
if (error != USBD_NORMAL_COMPLETION && error != USBD_IN_PROGRESS) {
|
|
m_freem(m0);
|
|
data->m = NULL;
|
|
data->ni = NULL;
|
|
return error;
|
|
}
|
|
|
|
sc->tx_queued++;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ural_tx_data(struct ural_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct ural_tx_desc *desc;
|
|
struct ural_tx_data *data;
|
|
struct ieee80211_frame *wh;
|
|
struct ieee80211_key *k;
|
|
uint32_t flags = 0;
|
|
uint16_t dur;
|
|
usbd_status error;
|
|
int xferlen, rate;
|
|
|
|
wh = mtod(m0, struct ieee80211_frame *);
|
|
|
|
if (ic->ic_fixed_rate != IEEE80211_FIXED_RATE_NONE)
|
|
rate = ic->ic_fixed_rate;
|
|
else
|
|
rate = ni->ni_rates.rs_rates[ni->ni_txrate];
|
|
|
|
rate &= IEEE80211_RATE_VAL;
|
|
|
|
if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
|
|
k = ieee80211_crypto_encap(ic, ni, m0);
|
|
if (k == NULL) {
|
|
m_freem(m0);
|
|
return ENOBUFS;
|
|
}
|
|
|
|
/* packet header may have moved, reset our local pointer */
|
|
wh = mtod(m0, struct ieee80211_frame *);
|
|
}
|
|
|
|
data = &sc->tx_data[0];
|
|
desc = (struct ural_tx_desc *)data->buf;
|
|
|
|
data->m = m0;
|
|
data->ni = ni;
|
|
|
|
if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
|
|
flags |= RAL_TX_ACK;
|
|
flags |= RAL_TX_RETRY(7);
|
|
|
|
dur = ural_txtime(RAL_ACK_SIZE, ural_ack_rate(ic, rate),
|
|
ic->ic_flags) + RAL_SIFS;
|
|
*(uint16_t *)wh->i_dur = htole16(dur);
|
|
}
|
|
|
|
if (bpf_peers_present(sc->sc_drvbpf)) {
|
|
struct ural_tx_radiotap_header *tap = &sc->sc_txtap;
|
|
|
|
tap->wt_flags = 0;
|
|
tap->wt_rate = rate;
|
|
tap->wt_chan_freq = htole16(ic->ic_curchan->ic_freq);
|
|
tap->wt_chan_flags = htole16(ic->ic_curchan->ic_flags);
|
|
tap->wt_antenna = sc->tx_ant;
|
|
|
|
bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_txtap_len, m0);
|
|
}
|
|
|
|
m_copydata(m0, 0, m0->m_pkthdr.len, data->buf + RAL_TX_DESC_SIZE);
|
|
ural_setup_tx_desc(sc, desc, flags, m0->m_pkthdr.len, rate);
|
|
|
|
/* align end on a 2-bytes boundary */
|
|
xferlen = (RAL_TX_DESC_SIZE + m0->m_pkthdr.len + 1) & ~1;
|
|
|
|
/*
|
|
* No space left in the last URB to store the extra 2 bytes, force
|
|
* sending of another URB.
|
|
*/
|
|
if ((xferlen % 64) == 0)
|
|
xferlen += 2;
|
|
|
|
DPRINTFN(10, ("sending data frame len=%u rate=%u xfer len=%u\n",
|
|
m0->m_pkthdr.len, rate, xferlen));
|
|
|
|
usbd_setup_xfer(data->xfer, sc->sc_tx_pipeh, data, data->buf,
|
|
xferlen, USBD_FORCE_SHORT_XFER | USBD_NO_COPY, RAL_TX_TIMEOUT,
|
|
ural_txeof);
|
|
|
|
error = usbd_transfer(data->xfer);
|
|
if (error != USBD_NORMAL_COMPLETION && error != USBD_IN_PROGRESS) {
|
|
m_freem(m0);
|
|
data->m = NULL;
|
|
data->ni = NULL;
|
|
return error;
|
|
}
|
|
|
|
sc->tx_queued++;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
ural_start(struct ifnet *ifp)
|
|
{
|
|
struct ural_softc *sc = ifp->if_softc;
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct mbuf *m0;
|
|
struct ether_header *eh;
|
|
struct ieee80211_node *ni;
|
|
|
|
for (;;) {
|
|
IF_POLL(&ic->ic_mgtq, m0);
|
|
if (m0 != NULL) {
|
|
if (sc->tx_queued >= RAL_TX_LIST_COUNT) {
|
|
ifp->if_drv_flags |= IFF_DRV_OACTIVE;
|
|
break;
|
|
}
|
|
IF_DEQUEUE(&ic->ic_mgtq, m0);
|
|
|
|
ni = (struct ieee80211_node *)m0->m_pkthdr.rcvif;
|
|
m0->m_pkthdr.rcvif = NULL;
|
|
|
|
if (bpf_peers_present(ic->ic_rawbpf))
|
|
bpf_mtap(ic->ic_rawbpf, m0);
|
|
|
|
if (ural_tx_mgt(sc, m0, ni) != 0) {
|
|
ieee80211_free_node(ni);
|
|
break;
|
|
}
|
|
} else {
|
|
if (ic->ic_state != IEEE80211_S_RUN)
|
|
break;
|
|
IFQ_DRV_DEQUEUE(&ifp->if_snd, m0);
|
|
if (m0 == NULL)
|
|
break;
|
|
if (sc->tx_queued >= RAL_TX_LIST_COUNT) {
|
|
IFQ_DRV_PREPEND(&ifp->if_snd, m0);
|
|
ifp->if_drv_flags |= IFF_DRV_OACTIVE;
|
|
break;
|
|
}
|
|
/*
|
|
* Cancel any background scan.
|
|
*/
|
|
if (ic->ic_flags & IEEE80211_F_SCAN)
|
|
ieee80211_cancel_scan(ic);
|
|
|
|
if (m0->m_len < sizeof (struct ether_header) &&
|
|
!(m0 = m_pullup(m0, sizeof (struct ether_header))))
|
|
continue;
|
|
|
|
eh = mtod(m0, struct ether_header *);
|
|
ni = ieee80211_find_txnode(ic, eh->ether_dhost);
|
|
if (ni == NULL) {
|
|
m_freem(m0);
|
|
continue;
|
|
}
|
|
BPF_MTAP(ifp, m0);
|
|
|
|
m0 = ieee80211_encap(ic, m0, ni);
|
|
if (m0 == NULL) {
|
|
ieee80211_free_node(ni);
|
|
continue;
|
|
}
|
|
|
|
if (bpf_peers_present(ic->ic_rawbpf))
|
|
bpf_mtap(ic->ic_rawbpf, m0);
|
|
|
|
if (ural_tx_data(sc, m0, ni) != 0) {
|
|
ieee80211_free_node(ni);
|
|
ifp->if_oerrors++;
|
|
break;
|
|
}
|
|
}
|
|
|
|
sc->sc_tx_timer = 5;
|
|
ic->ic_lastdata = ticks;
|
|
callout_reset(&sc->watchdog_ch, hz, ural_watchdog, sc);
|
|
}
|
|
}
|
|
|
|
static void
|
|
ural_watchdog(void *arg)
|
|
{
|
|
struct ural_softc *sc = (struct ural_softc *)arg;
|
|
|
|
RAL_LOCK(sc);
|
|
|
|
if (sc->sc_tx_timer > 0) {
|
|
if (--sc->sc_tx_timer == 0) {
|
|
device_printf(sc->sc_dev, "device timeout\n");
|
|
/*ural_init(sc); XXX needs a process context! */
|
|
sc->sc_ifp->if_oerrors++;
|
|
RAL_UNLOCK(sc);
|
|
return;
|
|
}
|
|
callout_reset(&sc->watchdog_ch, hz, ural_watchdog, sc);
|
|
}
|
|
|
|
RAL_UNLOCK(sc);
|
|
}
|
|
|
|
/*
|
|
* This function allows for fast channel switching in monitor mode (used by
|
|
* net-mgmt/kismet). In IBSS mode, we must explicitly reset the interface to
|
|
* generate a new beacon frame.
|
|
*/
|
|
static int
|
|
ural_reset(struct ifnet *ifp)
|
|
{
|
|
struct ural_softc *sc = ifp->if_softc;
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
|
|
if (ic->ic_opmode != IEEE80211_M_MONITOR)
|
|
return ENETRESET;
|
|
|
|
ural_set_chan(sc, ic->ic_curchan);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ural_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
|
|
{
|
|
struct ural_softc *sc = ifp->if_softc;
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
int error = 0;
|
|
|
|
RAL_LOCK(sc);
|
|
|
|
switch (cmd) {
|
|
case SIOCSIFFLAGS:
|
|
if (ifp->if_flags & IFF_UP) {
|
|
if (ifp->if_drv_flags & IFF_DRV_RUNNING)
|
|
ural_update_promisc(sc);
|
|
else
|
|
ural_init(sc);
|
|
} else {
|
|
if (ifp->if_drv_flags & IFF_DRV_RUNNING)
|
|
ural_stop(sc);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
error = ieee80211_ioctl(ic, cmd, data);
|
|
}
|
|
|
|
if (error == ENETRESET) {
|
|
if ((ifp->if_flags & IFF_UP) &&
|
|
(ifp->if_drv_flags & IFF_DRV_RUNNING) &&
|
|
(ic->ic_roaming != IEEE80211_ROAMING_MANUAL))
|
|
ural_init(sc);
|
|
error = 0;
|
|
}
|
|
|
|
RAL_UNLOCK(sc);
|
|
|
|
return error;
|
|
}
|
|
|
|
static void
|
|
ural_set_testmode(struct ural_softc *sc)
|
|
{
|
|
usb_device_request_t req;
|
|
usbd_status error;
|
|
|
|
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
|
|
req.bRequest = RAL_VENDOR_REQUEST;
|
|
USETW(req.wValue, 4);
|
|
USETW(req.wIndex, 1);
|
|
USETW(req.wLength, 0);
|
|
|
|
error = usbd_do_request(sc->sc_udev, &req, NULL);
|
|
if (error != 0) {
|
|
printf("%s: could not set test mode: %s\n",
|
|
device_get_nameunit(sc->sc_dev), usbd_errstr(error));
|
|
}
|
|
}
|
|
|
|
static void
|
|
ural_eeprom_read(struct ural_softc *sc, uint16_t addr, void *buf, int len)
|
|
{
|
|
usb_device_request_t req;
|
|
usbd_status error;
|
|
|
|
req.bmRequestType = UT_READ_VENDOR_DEVICE;
|
|
req.bRequest = RAL_READ_EEPROM;
|
|
USETW(req.wValue, 0);
|
|
USETW(req.wIndex, addr);
|
|
USETW(req.wLength, len);
|
|
|
|
error = usbd_do_request(sc->sc_udev, &req, buf);
|
|
if (error != 0) {
|
|
printf("%s: could not read EEPROM: %s\n",
|
|
device_get_nameunit(sc->sc_dev), usbd_errstr(error));
|
|
}
|
|
}
|
|
|
|
static uint16_t
|
|
ural_read(struct ural_softc *sc, uint16_t reg)
|
|
{
|
|
usb_device_request_t req;
|
|
usbd_status error;
|
|
uint16_t val;
|
|
|
|
req.bmRequestType = UT_READ_VENDOR_DEVICE;
|
|
req.bRequest = RAL_READ_MAC;
|
|
USETW(req.wValue, 0);
|
|
USETW(req.wIndex, reg);
|
|
USETW(req.wLength, sizeof (uint16_t));
|
|
|
|
error = usbd_do_request(sc->sc_udev, &req, &val);
|
|
if (error != 0) {
|
|
printf("%s: could not read MAC register: %s\n",
|
|
device_get_nameunit(sc->sc_dev), usbd_errstr(error));
|
|
return 0;
|
|
}
|
|
|
|
return le16toh(val);
|
|
}
|
|
|
|
static void
|
|
ural_read_multi(struct ural_softc *sc, uint16_t reg, void *buf, int len)
|
|
{
|
|
usb_device_request_t req;
|
|
usbd_status error;
|
|
|
|
req.bmRequestType = UT_READ_VENDOR_DEVICE;
|
|
req.bRequest = RAL_READ_MULTI_MAC;
|
|
USETW(req.wValue, 0);
|
|
USETW(req.wIndex, reg);
|
|
USETW(req.wLength, len);
|
|
|
|
error = usbd_do_request(sc->sc_udev, &req, buf);
|
|
if (error != 0) {
|
|
printf("%s: could not read MAC register: %s\n",
|
|
device_get_nameunit(sc->sc_dev), usbd_errstr(error));
|
|
}
|
|
}
|
|
|
|
static void
|
|
ural_write(struct ural_softc *sc, uint16_t reg, uint16_t val)
|
|
{
|
|
usb_device_request_t req;
|
|
usbd_status error;
|
|
|
|
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
|
|
req.bRequest = RAL_WRITE_MAC;
|
|
USETW(req.wValue, val);
|
|
USETW(req.wIndex, reg);
|
|
USETW(req.wLength, 0);
|
|
|
|
error = usbd_do_request(sc->sc_udev, &req, NULL);
|
|
if (error != 0) {
|
|
printf("%s: could not write MAC register: %s\n",
|
|
device_get_nameunit(sc->sc_dev), usbd_errstr(error));
|
|
}
|
|
}
|
|
|
|
static void
|
|
ural_write_multi(struct ural_softc *sc, uint16_t reg, void *buf, int len)
|
|
{
|
|
usb_device_request_t req;
|
|
usbd_status error;
|
|
|
|
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
|
|
req.bRequest = RAL_WRITE_MULTI_MAC;
|
|
USETW(req.wValue, 0);
|
|
USETW(req.wIndex, reg);
|
|
USETW(req.wLength, len);
|
|
|
|
error = usbd_do_request(sc->sc_udev, &req, buf);
|
|
if (error != 0) {
|
|
printf("%s: could not write MAC register: %s\n",
|
|
device_get_nameunit(sc->sc_dev), usbd_errstr(error));
|
|
}
|
|
}
|
|
|
|
static void
|
|
ural_bbp_write(struct ural_softc *sc, uint8_t reg, uint8_t val)
|
|
{
|
|
uint16_t tmp;
|
|
int ntries;
|
|
|
|
for (ntries = 0; ntries < 5; ntries++) {
|
|
if (!(ural_read(sc, RAL_PHY_CSR8) & RAL_BBP_BUSY))
|
|
break;
|
|
}
|
|
if (ntries == 5) {
|
|
printf("%s: could not write to BBP\n", device_get_nameunit(sc->sc_dev));
|
|
return;
|
|
}
|
|
|
|
tmp = reg << 8 | val;
|
|
ural_write(sc, RAL_PHY_CSR7, tmp);
|
|
}
|
|
|
|
static uint8_t
|
|
ural_bbp_read(struct ural_softc *sc, uint8_t reg)
|
|
{
|
|
uint16_t val;
|
|
int ntries;
|
|
|
|
val = RAL_BBP_WRITE | reg << 8;
|
|
ural_write(sc, RAL_PHY_CSR7, val);
|
|
|
|
for (ntries = 0; ntries < 5; ntries++) {
|
|
if (!(ural_read(sc, RAL_PHY_CSR8) & RAL_BBP_BUSY))
|
|
break;
|
|
}
|
|
if (ntries == 5) {
|
|
printf("%s: could not read BBP\n", device_get_nameunit(sc->sc_dev));
|
|
return 0;
|
|
}
|
|
|
|
return ural_read(sc, RAL_PHY_CSR7) & 0xff;
|
|
}
|
|
|
|
static void
|
|
ural_rf_write(struct ural_softc *sc, uint8_t reg, uint32_t val)
|
|
{
|
|
uint32_t tmp;
|
|
int ntries;
|
|
|
|
for (ntries = 0; ntries < 5; ntries++) {
|
|
if (!(ural_read(sc, RAL_PHY_CSR10) & RAL_RF_LOBUSY))
|
|
break;
|
|
}
|
|
if (ntries == 5) {
|
|
printf("%s: could not write to RF\n", device_get_nameunit(sc->sc_dev));
|
|
return;
|
|
}
|
|
|
|
tmp = RAL_RF_BUSY | RAL_RF_20BIT | (val & 0xfffff) << 2 | (reg & 0x3);
|
|
ural_write(sc, RAL_PHY_CSR9, tmp & 0xffff);
|
|
ural_write(sc, RAL_PHY_CSR10, tmp >> 16);
|
|
|
|
/* remember last written value in sc */
|
|
sc->rf_regs[reg] = val;
|
|
|
|
DPRINTFN(15, ("RF R[%u] <- 0x%05x\n", reg & 0x3, val & 0xfffff));
|
|
}
|
|
|
|
static void
|
|
ural_scan_start(struct ieee80211com *ic)
|
|
{
|
|
struct ural_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 = URAL_SCAN_START;
|
|
usb_add_task(sc->sc_udev, &sc->sc_scantask, USB_TASKQ_DRIVER);
|
|
|
|
}
|
|
|
|
static void
|
|
ural_scan_end(struct ieee80211com *ic)
|
|
{
|
|
struct ural_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 = URAL_SCAN_END;
|
|
usb_add_task(sc->sc_udev, &sc->sc_scantask, USB_TASKQ_DRIVER);
|
|
|
|
}
|
|
|
|
static void
|
|
ural_set_channel(struct ieee80211com *ic)
|
|
{
|
|
|
|
struct ural_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 = URAL_SET_CHANNEL;
|
|
usb_add_task(sc->sc_udev, &sc->sc_scantask, USB_TASKQ_DRIVER);
|
|
}
|
|
|
|
static void
|
|
ural_set_chan(struct ural_softc *sc, struct ieee80211_channel *c)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
uint8_t power, tmp;
|
|
u_int i, chan;
|
|
|
|
chan = ieee80211_chan2ieee(ic, c);
|
|
if (chan == 0 || chan == IEEE80211_CHAN_ANY)
|
|
return;
|
|
|
|
if (IEEE80211_IS_CHAN_2GHZ(c))
|
|
power = min(sc->txpow[chan - 1], 31);
|
|
else
|
|
power = 31;
|
|
|
|
/* adjust txpower using ifconfig settings */
|
|
power -= (100 - ic->ic_txpowlimit) / 8;
|
|
|
|
DPRINTFN(2, ("setting channel to %u, txpower to %u\n", chan, power));
|
|
|
|
switch (sc->rf_rev) {
|
|
case RAL_RF_2522:
|
|
ural_rf_write(sc, RAL_RF1, 0x00814);
|
|
ural_rf_write(sc, RAL_RF2, ural_rf2522_r2[chan - 1]);
|
|
ural_rf_write(sc, RAL_RF3, power << 7 | 0x00040);
|
|
break;
|
|
|
|
case RAL_RF_2523:
|
|
ural_rf_write(sc, RAL_RF1, 0x08804);
|
|
ural_rf_write(sc, RAL_RF2, ural_rf2523_r2[chan - 1]);
|
|
ural_rf_write(sc, RAL_RF3, power << 7 | 0x38044);
|
|
ural_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
|
|
break;
|
|
|
|
case RAL_RF_2524:
|
|
ural_rf_write(sc, RAL_RF1, 0x0c808);
|
|
ural_rf_write(sc, RAL_RF2, ural_rf2524_r2[chan - 1]);
|
|
ural_rf_write(sc, RAL_RF3, power << 7 | 0x00040);
|
|
ural_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
|
|
break;
|
|
|
|
case RAL_RF_2525:
|
|
ural_rf_write(sc, RAL_RF1, 0x08808);
|
|
ural_rf_write(sc, RAL_RF2, ural_rf2525_hi_r2[chan - 1]);
|
|
ural_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
|
|
ural_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
|
|
|
|
ural_rf_write(sc, RAL_RF1, 0x08808);
|
|
ural_rf_write(sc, RAL_RF2, ural_rf2525_r2[chan - 1]);
|
|
ural_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
|
|
ural_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
|
|
break;
|
|
|
|
case RAL_RF_2525E:
|
|
ural_rf_write(sc, RAL_RF1, 0x08808);
|
|
ural_rf_write(sc, RAL_RF2, ural_rf2525e_r2[chan - 1]);
|
|
ural_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
|
|
ural_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00286 : 0x00282);
|
|
break;
|
|
|
|
case RAL_RF_2526:
|
|
ural_rf_write(sc, RAL_RF2, ural_rf2526_hi_r2[chan - 1]);
|
|
ural_rf_write(sc, RAL_RF4, (chan & 1) ? 0x00386 : 0x00381);
|
|
ural_rf_write(sc, RAL_RF1, 0x08804);
|
|
|
|
ural_rf_write(sc, RAL_RF2, ural_rf2526_r2[chan - 1]);
|
|
ural_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
|
|
ural_rf_write(sc, RAL_RF4, (chan & 1) ? 0x00386 : 0x00381);
|
|
break;
|
|
|
|
/* dual-band RF */
|
|
case RAL_RF_5222:
|
|
for (i = 0; ural_rf5222[i].chan != chan; i++);
|
|
|
|
ural_rf_write(sc, RAL_RF1, ural_rf5222[i].r1);
|
|
ural_rf_write(sc, RAL_RF2, ural_rf5222[i].r2);
|
|
ural_rf_write(sc, RAL_RF3, power << 7 | 0x00040);
|
|
ural_rf_write(sc, RAL_RF4, ural_rf5222[i].r4);
|
|
break;
|
|
}
|
|
|
|
if (ic->ic_opmode != IEEE80211_M_MONITOR &&
|
|
(ic->ic_flags & IEEE80211_F_SCAN) == 0) {
|
|
/* set Japan filter bit for channel 14 */
|
|
tmp = ural_bbp_read(sc, 70);
|
|
|
|
tmp &= ~RAL_JAPAN_FILTER;
|
|
if (chan == 14)
|
|
tmp |= RAL_JAPAN_FILTER;
|
|
|
|
ural_bbp_write(sc, 70, tmp);
|
|
|
|
/* clear CRC errors */
|
|
ural_read(sc, RAL_STA_CSR0);
|
|
|
|
DELAY(10000);
|
|
ural_disable_rf_tune(sc);
|
|
}
|
|
|
|
/* update basic rate set */
|
|
if (IEEE80211_IS_CHAN_B(c)) {
|
|
/* 11b basic rates: 1, 2Mbps */
|
|
ural_write(sc, RAL_TXRX_CSR11, 0x3);
|
|
} else if (IEEE80211_IS_CHAN_A(c)) {
|
|
/* 11a basic rates: 6, 12, 24Mbps */
|
|
ural_write(sc, RAL_TXRX_CSR11, 0x150);
|
|
} else {
|
|
/* 11g basic rates: 1, 2, 5.5, 11, 6, 12, 24Mbps */
|
|
ural_write(sc, RAL_TXRX_CSR11, 0x15f);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Disable RF auto-tuning.
|
|
*/
|
|
static void
|
|
ural_disable_rf_tune(struct ural_softc *sc)
|
|
{
|
|
uint32_t tmp;
|
|
|
|
if (sc->rf_rev != RAL_RF_2523) {
|
|
tmp = sc->rf_regs[RAL_RF1] & ~RAL_RF1_AUTOTUNE;
|
|
ural_rf_write(sc, RAL_RF1, tmp);
|
|
}
|
|
|
|
tmp = sc->rf_regs[RAL_RF3] & ~RAL_RF3_AUTOTUNE;
|
|
ural_rf_write(sc, RAL_RF3, tmp);
|
|
|
|
DPRINTFN(2, ("disabling RF autotune\n"));
|
|
}
|
|
|
|
/*
|
|
* Refer to IEEE Std 802.11-1999 pp. 123 for more information on TSF
|
|
* synchronization.
|
|
*/
|
|
static void
|
|
ural_enable_tsf_sync(struct ural_softc *sc)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
uint16_t logcwmin, preload, tmp;
|
|
|
|
/* first, disable TSF synchronization */
|
|
ural_write(sc, RAL_TXRX_CSR19, 0);
|
|
|
|
tmp = (16 * ic->ic_bss->ni_intval) << 4;
|
|
ural_write(sc, RAL_TXRX_CSR18, tmp);
|
|
|
|
logcwmin = (ic->ic_opmode == IEEE80211_M_IBSS) ? 2 : 0;
|
|
preload = (ic->ic_opmode == IEEE80211_M_IBSS) ? 320 : 6;
|
|
tmp = logcwmin << 12 | preload;
|
|
ural_write(sc, RAL_TXRX_CSR20, tmp);
|
|
|
|
/* finally, enable TSF synchronization */
|
|
tmp = RAL_ENABLE_TSF | RAL_ENABLE_TBCN;
|
|
if (ic->ic_opmode == IEEE80211_M_STA)
|
|
tmp |= RAL_ENABLE_TSF_SYNC(1);
|
|
else
|
|
tmp |= RAL_ENABLE_TSF_SYNC(2) | RAL_ENABLE_BEACON_GENERATOR;
|
|
ural_write(sc, RAL_TXRX_CSR19, tmp);
|
|
|
|
DPRINTF(("enabling TSF synchronization\n"));
|
|
}
|
|
|
|
static void
|
|
ural_update_slot(struct ifnet *ifp)
|
|
{
|
|
struct ural_softc *sc = ifp->if_softc;
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
uint16_t slottime, sifs, eifs;
|
|
|
|
slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20;
|
|
|
|
/*
|
|
* These settings may sound a bit inconsistent but this is what the
|
|
* reference driver does.
|
|
*/
|
|
if (ic->ic_curmode == IEEE80211_MODE_11B) {
|
|
sifs = 16 - RAL_RXTX_TURNAROUND;
|
|
eifs = 364;
|
|
} else {
|
|
sifs = 10 - RAL_RXTX_TURNAROUND;
|
|
eifs = 64;
|
|
}
|
|
|
|
ural_write(sc, RAL_MAC_CSR10, slottime);
|
|
ural_write(sc, RAL_MAC_CSR11, sifs);
|
|
ural_write(sc, RAL_MAC_CSR12, eifs);
|
|
}
|
|
|
|
static void
|
|
ural_set_txpreamble(struct ural_softc *sc)
|
|
{
|
|
uint16_t tmp;
|
|
|
|
tmp = ural_read(sc, RAL_TXRX_CSR10);
|
|
|
|
tmp &= ~RAL_SHORT_PREAMBLE;
|
|
if (sc->sc_ic.ic_flags & IEEE80211_F_SHPREAMBLE)
|
|
tmp |= RAL_SHORT_PREAMBLE;
|
|
|
|
ural_write(sc, RAL_TXRX_CSR10, tmp);
|
|
}
|
|
|
|
static void
|
|
ural_set_basicrates(struct ural_softc *sc)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
|
|
/* update basic rate set */
|
|
if (ic->ic_curmode == IEEE80211_MODE_11B) {
|
|
/* 11b basic rates: 1, 2Mbps */
|
|
ural_write(sc, RAL_TXRX_CSR11, 0x3);
|
|
} else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bss->ni_chan)) {
|
|
/* 11a basic rates: 6, 12, 24Mbps */
|
|
ural_write(sc, RAL_TXRX_CSR11, 0x150);
|
|
} else {
|
|
/* 11g basic rates: 1, 2, 5.5, 11, 6, 12, 24Mbps */
|
|
ural_write(sc, RAL_TXRX_CSR11, 0x15f);
|
|
}
|
|
}
|
|
|
|
static void
|
|
ural_set_bssid(struct ural_softc *sc, const uint8_t *bssid)
|
|
{
|
|
uint16_t tmp;
|
|
|
|
tmp = bssid[0] | bssid[1] << 8;
|
|
ural_write(sc, RAL_MAC_CSR5, tmp);
|
|
|
|
tmp = bssid[2] | bssid[3] << 8;
|
|
ural_write(sc, RAL_MAC_CSR6, tmp);
|
|
|
|
tmp = bssid[4] | bssid[5] << 8;
|
|
ural_write(sc, RAL_MAC_CSR7, tmp);
|
|
|
|
DPRINTF(("setting BSSID to %6D\n", bssid, ":"));
|
|
}
|
|
|
|
static void
|
|
ural_set_macaddr(struct ural_softc *sc, uint8_t *addr)
|
|
{
|
|
uint16_t tmp;
|
|
|
|
tmp = addr[0] | addr[1] << 8;
|
|
ural_write(sc, RAL_MAC_CSR2, tmp);
|
|
|
|
tmp = addr[2] | addr[3] << 8;
|
|
ural_write(sc, RAL_MAC_CSR3, tmp);
|
|
|
|
tmp = addr[4] | addr[5] << 8;
|
|
ural_write(sc, RAL_MAC_CSR4, tmp);
|
|
|
|
DPRINTF(("setting MAC address to %6D\n", addr, ":"));
|
|
}
|
|
|
|
static void
|
|
ural_update_promisc(struct ural_softc *sc)
|
|
{
|
|
struct ifnet *ifp = sc->sc_ic.ic_ifp;
|
|
uint32_t tmp;
|
|
|
|
tmp = ural_read(sc, RAL_TXRX_CSR2);
|
|
|
|
tmp &= ~RAL_DROP_NOT_TO_ME;
|
|
if (!(ifp->if_flags & IFF_PROMISC))
|
|
tmp |= RAL_DROP_NOT_TO_ME;
|
|
|
|
ural_write(sc, RAL_TXRX_CSR2, tmp);
|
|
|
|
DPRINTF(("%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ?
|
|
"entering" : "leaving"));
|
|
}
|
|
|
|
static const char *
|
|
ural_get_rf(int rev)
|
|
{
|
|
switch (rev) {
|
|
case RAL_RF_2522: return "RT2522";
|
|
case RAL_RF_2523: return "RT2523";
|
|
case RAL_RF_2524: return "RT2524";
|
|
case RAL_RF_2525: return "RT2525";
|
|
case RAL_RF_2525E: return "RT2525e";
|
|
case RAL_RF_2526: return "RT2526";
|
|
case RAL_RF_5222: return "RT5222";
|
|
default: return "unknown";
|
|
}
|
|
}
|
|
|
|
static void
|
|
ural_read_eeprom(struct ural_softc *sc)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
uint16_t val;
|
|
|
|
ural_eeprom_read(sc, RAL_EEPROM_CONFIG0, &val, 2);
|
|
val = le16toh(val);
|
|
sc->rf_rev = (val >> 11) & 0x7;
|
|
sc->hw_radio = (val >> 10) & 0x1;
|
|
sc->led_mode = (val >> 6) & 0x7;
|
|
sc->rx_ant = (val >> 4) & 0x3;
|
|
sc->tx_ant = (val >> 2) & 0x3;
|
|
sc->nb_ant = val & 0x3;
|
|
|
|
/* read MAC address */
|
|
ural_eeprom_read(sc, RAL_EEPROM_ADDRESS, ic->ic_myaddr, 6);
|
|
|
|
/* read default values for BBP registers */
|
|
ural_eeprom_read(sc, RAL_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16);
|
|
|
|
/* read Tx power for all b/g channels */
|
|
ural_eeprom_read(sc, RAL_EEPROM_TXPOWER, sc->txpow, 14);
|
|
}
|
|
|
|
static int
|
|
ural_bbp_init(struct ural_softc *sc)
|
|
{
|
|
#define N(a) (sizeof (a) / sizeof ((a)[0]))
|
|
int i, ntries;
|
|
|
|
/* wait for BBP to be ready */
|
|
for (ntries = 0; ntries < 100; ntries++) {
|
|
if (ural_bbp_read(sc, RAL_BBP_VERSION) != 0)
|
|
break;
|
|
DELAY(1000);
|
|
}
|
|
if (ntries == 100) {
|
|
device_printf(sc->sc_dev, "timeout waiting for BBP\n");
|
|
return EIO;
|
|
}
|
|
|
|
/* initialize BBP registers to default values */
|
|
for (i = 0; i < N(ural_def_bbp); i++)
|
|
ural_bbp_write(sc, ural_def_bbp[i].reg, ural_def_bbp[i].val);
|
|
|
|
#if 0
|
|
/* initialize BBP registers to values stored in EEPROM */
|
|
for (i = 0; i < 16; i++) {
|
|
if (sc->bbp_prom[i].reg == 0xff)
|
|
continue;
|
|
ural_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val);
|
|
}
|
|
#endif
|
|
|
|
return 0;
|
|
#undef N
|
|
}
|
|
|
|
static void
|
|
ural_set_txantenna(struct ural_softc *sc, int antenna)
|
|
{
|
|
uint16_t tmp;
|
|
uint8_t tx;
|
|
|
|
tx = ural_bbp_read(sc, RAL_BBP_TX) & ~RAL_BBP_ANTMASK;
|
|
if (antenna == 1)
|
|
tx |= RAL_BBP_ANTA;
|
|
else if (antenna == 2)
|
|
tx |= RAL_BBP_ANTB;
|
|
else
|
|
tx |= RAL_BBP_DIVERSITY;
|
|
|
|
/* need to force I/Q flip for RF 2525e, 2526 and 5222 */
|
|
if (sc->rf_rev == RAL_RF_2525E || sc->rf_rev == RAL_RF_2526 ||
|
|
sc->rf_rev == RAL_RF_5222)
|
|
tx |= RAL_BBP_FLIPIQ;
|
|
|
|
ural_bbp_write(sc, RAL_BBP_TX, tx);
|
|
|
|
/* update values in PHY_CSR5 and PHY_CSR6 */
|
|
tmp = ural_read(sc, RAL_PHY_CSR5) & ~0x7;
|
|
ural_write(sc, RAL_PHY_CSR5, tmp | (tx & 0x7));
|
|
|
|
tmp = ural_read(sc, RAL_PHY_CSR6) & ~0x7;
|
|
ural_write(sc, RAL_PHY_CSR6, tmp | (tx & 0x7));
|
|
}
|
|
|
|
static void
|
|
ural_set_rxantenna(struct ural_softc *sc, int antenna)
|
|
{
|
|
uint8_t rx;
|
|
|
|
rx = ural_bbp_read(sc, RAL_BBP_RX) & ~RAL_BBP_ANTMASK;
|
|
if (antenna == 1)
|
|
rx |= RAL_BBP_ANTA;
|
|
else if (antenna == 2)
|
|
rx |= RAL_BBP_ANTB;
|
|
else
|
|
rx |= RAL_BBP_DIVERSITY;
|
|
|
|
/* need to force no I/Q flip for RF 2525e and 2526 */
|
|
if (sc->rf_rev == RAL_RF_2525E || sc->rf_rev == RAL_RF_2526)
|
|
rx &= ~RAL_BBP_FLIPIQ;
|
|
|
|
ural_bbp_write(sc, RAL_BBP_RX, rx);
|
|
}
|
|
|
|
static void
|
|
ural_init(void *priv)
|
|
{
|
|
#define N(a) (sizeof (a) / sizeof ((a)[0]))
|
|
struct ural_softc *sc = priv;
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct ifnet *ifp = ic->ic_ifp;
|
|
struct ural_rx_data *data;
|
|
uint16_t tmp;
|
|
usbd_status error;
|
|
int i, ntries;
|
|
|
|
ural_set_testmode(sc);
|
|
ural_write(sc, 0x308, 0x00f0); /* XXX magic */
|
|
|
|
ural_stop(sc);
|
|
|
|
/* initialize MAC registers to default values */
|
|
for (i = 0; i < N(ural_def_mac); i++)
|
|
ural_write(sc, ural_def_mac[i].reg, ural_def_mac[i].val);
|
|
|
|
/* wait for BBP and RF to wake up (this can take a long time!) */
|
|
for (ntries = 0; ntries < 100; ntries++) {
|
|
tmp = ural_read(sc, RAL_MAC_CSR17);
|
|
if ((tmp & (RAL_BBP_AWAKE | RAL_RF_AWAKE)) ==
|
|
(RAL_BBP_AWAKE | RAL_RF_AWAKE))
|
|
break;
|
|
DELAY(1000);
|
|
}
|
|
if (ntries == 100) {
|
|
printf("%s: timeout waiting for BBP/RF to wakeup\n",
|
|
device_get_nameunit(sc->sc_dev));
|
|
goto fail;
|
|
}
|
|
|
|
/* we're ready! */
|
|
ural_write(sc, RAL_MAC_CSR1, RAL_HOST_READY);
|
|
|
|
/* set basic rate set (will be updated later) */
|
|
ural_write(sc, RAL_TXRX_CSR11, 0x15f);
|
|
|
|
if (ural_bbp_init(sc) != 0)
|
|
goto fail;
|
|
|
|
ural_set_chan(sc, ic->ic_curchan);
|
|
|
|
/* clear statistic registers (STA_CSR0 to STA_CSR10) */
|
|
ural_read_multi(sc, RAL_STA_CSR0, sc->sta, sizeof sc->sta);
|
|
|
|
ural_set_txantenna(sc, sc->tx_ant);
|
|
ural_set_rxantenna(sc, sc->rx_ant);
|
|
|
|
IEEE80211_ADDR_COPY(ic->ic_myaddr, IF_LLADDR(ifp));
|
|
ural_set_macaddr(sc, ic->ic_myaddr);
|
|
|
|
/*
|
|
* Allocate xfer for AMRR statistics requests.
|
|
*/
|
|
sc->amrr_xfer = usbd_alloc_xfer(sc->sc_udev);
|
|
if (sc->amrr_xfer == NULL) {
|
|
printf("%s: could not allocate AMRR xfer\n",
|
|
device_get_nameunit(sc->sc_dev));
|
|
goto fail;
|
|
}
|
|
|
|
/*
|
|
* 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) {
|
|
printf("%s: could not open Tx pipe: %s\n",
|
|
device_get_nameunit(sc->sc_dev), 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) {
|
|
printf("%s: could not open Rx pipe: %s\n",
|
|
device_get_nameunit(sc->sc_dev), usbd_errstr(error));
|
|
goto fail;
|
|
}
|
|
|
|
/*
|
|
* Allocate Tx and Rx xfer queues.
|
|
*/
|
|
error = ural_alloc_tx_list(sc);
|
|
if (error != 0) {
|
|
printf("%s: could not allocate Tx list\n",
|
|
device_get_nameunit(sc->sc_dev));
|
|
goto fail;
|
|
}
|
|
|
|
error = ural_alloc_rx_list(sc);
|
|
if (error != 0) {
|
|
printf("%s: could not allocate Rx list\n",
|
|
device_get_nameunit(sc->sc_dev));
|
|
goto fail;
|
|
}
|
|
|
|
/*
|
|
* Start up the receive pipe.
|
|
*/
|
|
for (i = 0; i < RAL_RX_LIST_COUNT; i++) {
|
|
data = &sc->rx_data[i];
|
|
|
|
usbd_setup_xfer(data->xfer, sc->sc_rx_pipeh, data, data->buf,
|
|
MCLBYTES, USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, ural_rxeof);
|
|
usbd_transfer(data->xfer);
|
|
}
|
|
|
|
/* kick Rx */
|
|
tmp = RAL_DROP_PHY | RAL_DROP_CRC;
|
|
if (ic->ic_opmode != IEEE80211_M_MONITOR) {
|
|
tmp |= RAL_DROP_CTL | RAL_DROP_BAD_VERSION;
|
|
if (ic->ic_opmode != IEEE80211_M_HOSTAP)
|
|
tmp |= RAL_DROP_TODS;
|
|
if (!(ifp->if_flags & IFF_PROMISC))
|
|
tmp |= RAL_DROP_NOT_TO_ME;
|
|
}
|
|
ural_write(sc, RAL_TXRX_CSR2, tmp);
|
|
|
|
ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
|
|
ifp->if_drv_flags |= IFF_DRV_RUNNING;
|
|
|
|
if (ic->ic_opmode != IEEE80211_M_MONITOR) {
|
|
if (ic->ic_roaming != IEEE80211_ROAMING_MANUAL)
|
|
ieee80211_new_state(ic, IEEE80211_S_SCAN, -1);
|
|
} else
|
|
ieee80211_new_state(ic, IEEE80211_S_RUN, -1);
|
|
|
|
return;
|
|
|
|
fail: ural_stop(sc);
|
|
#undef N
|
|
}
|
|
|
|
static void
|
|
ural_stop(void *priv)
|
|
{
|
|
struct ural_softc *sc = priv;
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct ifnet *ifp = ic->ic_ifp;
|
|
|
|
sc->sc_tx_timer = 0;
|
|
ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
|
|
|
|
ieee80211_new_state(ic, IEEE80211_S_INIT, -1);
|
|
|
|
/* disable Rx */
|
|
ural_write(sc, RAL_TXRX_CSR2, RAL_DISABLE_RX);
|
|
|
|
/* reset ASIC and BBP (but won't reset MAC registers!) */
|
|
ural_write(sc, RAL_MAC_CSR1, RAL_RESET_ASIC | RAL_RESET_BBP);
|
|
ural_write(sc, RAL_MAC_CSR1, 0);
|
|
|
|
if (sc->amrr_xfer != NULL) {
|
|
usbd_free_xfer(sc->amrr_xfer);
|
|
sc->amrr_xfer = NULL;
|
|
}
|
|
|
|
if (sc->sc_rx_pipeh != NULL) {
|
|
usbd_abort_pipe(sc->sc_rx_pipeh);
|
|
usbd_close_pipe(sc->sc_rx_pipeh);
|
|
sc->sc_rx_pipeh = NULL;
|
|
}
|
|
|
|
if (sc->sc_tx_pipeh != NULL) {
|
|
usbd_abort_pipe(sc->sc_tx_pipeh);
|
|
usbd_close_pipe(sc->sc_tx_pipeh);
|
|
sc->sc_tx_pipeh = NULL;
|
|
}
|
|
|
|
ural_free_rx_list(sc);
|
|
ural_free_tx_list(sc);
|
|
}
|
|
|
|
static int
|
|
ural_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 ural_softc *sc = ifp->if_softc;
|
|
|
|
/* 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;
|
|
}
|
|
if (sc->tx_queued >= RAL_TX_LIST_COUNT) {
|
|
ifp->if_drv_flags |= IFF_DRV_OACTIVE;
|
|
m_freem(m);
|
|
ieee80211_free_node(ni);
|
|
return EIO;
|
|
}
|
|
|
|
if (bpf_peers_present(ic->ic_rawbpf))
|
|
bpf_mtap(ic->ic_rawbpf, m);
|
|
|
|
ifp->if_opackets++;
|
|
|
|
if (params == NULL) {
|
|
/*
|
|
* Legacy path; interpret frame contents to decide
|
|
* precisely how to send the frame.
|
|
*/
|
|
if (ural_tx_mgt(sc, m, ni) != 0)
|
|
goto bad;
|
|
} else {
|
|
/*
|
|
* Caller supplied explicit parameters to use in
|
|
* sending the frame.
|
|
*/
|
|
if (ural_tx_raw(sc, m, ni, params) != 0)
|
|
goto bad;
|
|
}
|
|
sc->sc_tx_timer = 5;
|
|
callout_reset(&sc->watchdog_ch, hz, ural_watchdog, sc);
|
|
|
|
return 0;
|
|
bad:
|
|
ifp->if_oerrors++;
|
|
ieee80211_free_node(ni);
|
|
return EIO; /* XXX */
|
|
}
|
|
|
|
static void
|
|
ural_amrr_start(struct ural_softc *sc, struct ieee80211_node *ni)
|
|
{
|
|
int i;
|
|
|
|
/* clear statistic registers (STA_CSR0 to STA_CSR10) */
|
|
ural_read_multi(sc, RAL_STA_CSR0, sc->sta, sizeof sc->sta);
|
|
|
|
ieee80211_amrr_node_init(&sc->amrr, &sc->amn);
|
|
|
|
/* set rate to some reasonable initial value */
|
|
for (i = ni->ni_rates.rs_nrates - 1;
|
|
i > 0 && (ni->ni_rates.rs_rates[i] & IEEE80211_RATE_VAL) > 72;
|
|
i--);
|
|
|
|
ni->ni_txrate = i;
|
|
|
|
callout_reset(&sc->amrr_ch, hz, ural_amrr_timeout, sc);
|
|
}
|
|
|
|
static void
|
|
ural_amrr_timeout(void *arg)
|
|
{
|
|
struct ural_softc *sc = (struct ural_softc *)arg;
|
|
usb_device_request_t req;
|
|
|
|
/*
|
|
* Asynchronously read statistic registers (cleared by read).
|
|
*/
|
|
req.bmRequestType = UT_READ_VENDOR_DEVICE;
|
|
req.bRequest = RAL_READ_MULTI_MAC;
|
|
USETW(req.wValue, 0);
|
|
USETW(req.wIndex, RAL_STA_CSR0);
|
|
USETW(req.wLength, sizeof sc->sta);
|
|
|
|
usbd_setup_default_xfer(sc->amrr_xfer, sc->sc_udev, sc,
|
|
USBD_DEFAULT_TIMEOUT, &req, sc->sta, sizeof sc->sta, 0,
|
|
ural_amrr_update);
|
|
(void)usbd_transfer(sc->amrr_xfer);
|
|
}
|
|
|
|
static void
|
|
ural_amrr_update(usbd_xfer_handle xfer, usbd_private_handle priv,
|
|
usbd_status status)
|
|
{
|
|
struct ural_softc *sc = (struct ural_softc *)priv;
|
|
struct ifnet *ifp = sc->sc_ic.ic_ifp;
|
|
|
|
if (status != USBD_NORMAL_COMPLETION) {
|
|
device_printf(sc->sc_dev, "could not retrieve Tx statistics - "
|
|
"cancelling automatic rate control\n");
|
|
return;
|
|
}
|
|
|
|
/* count TX retry-fail as Tx errors */
|
|
ifp->if_oerrors += sc->sta[9];
|
|
|
|
sc->amn.amn_retrycnt =
|
|
sc->sta[7] + /* TX one-retry ok count */
|
|
sc->sta[8] + /* TX more-retry ok count */
|
|
sc->sta[9]; /* TX retry-fail count */
|
|
|
|
sc->amn.amn_txcnt =
|
|
sc->amn.amn_retrycnt +
|
|
sc->sta[6]; /* TX no-retry ok count */
|
|
|
|
ieee80211_amrr_choose(&sc->amrr, sc->sc_ic.ic_bss, &sc->amn);
|
|
|
|
callout_reset(&sc->amrr_ch, hz, ural_amrr_timeout, sc);
|
|
}
|