2574 lines
66 KiB
C
2574 lines
66 KiB
C
/* $FreeBSD$ */
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/*-
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* Copyright (c) 2005-2007 Damien Bergamini <damien.bergamini@free.fr>
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* Copyright (c) 2006 Niall O'Higgins <niallo@openbsd.org>
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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 RT2501USB/RT2601USB chipset driver
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* http://www.ralinktech.com.tw/
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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_rumreg.h>
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#include <dev/usb/if_rumvar.h>
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#include <dev/usb/rt2573_ucode.h>
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#ifdef USB_DEBUG
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#define DPRINTF(x) do { if (rumdebug > 0) printf x; } while (0)
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#define DPRINTFN(n, x) do { if (rumdebug >= (n)) printf x; } while (0)
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int rumdebug = 0;
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SYSCTL_NODE(_hw_usb, OID_AUTO, rum, CTLFLAG_RW, 0, "USB rum");
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SYSCTL_INT(_hw_usb_rum, OID_AUTO, debug, CTLFLAG_RW, &rumdebug, 0,
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"rum 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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/* various supported device vendors/products */
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static const struct usb_devno rum_devs[] = {
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{ USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_HWU54DM },
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{ USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_RT2573_2 },
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{ USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_RT2573_3 },
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{ USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_RT2573_4 },
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{ USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_WUG2700 },
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{ USB_VENDOR_AMIT, USB_PRODUCT_AMIT_CGWLUSB2GO },
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{ USB_VENDOR_ASUS, USB_PRODUCT_ASUS_RT2573_1 },
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{ USB_VENDOR_ASUS, USB_PRODUCT_ASUS_RT2573_2 },
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{ USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5D7050A },
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{ USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5D9050V3 },
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{ USB_VENDOR_CISCOLINKSYS, USB_PRODUCT_CISCOLINKSYS_WUSB54GC },
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{ USB_VENDOR_CISCOLINKSYS, USB_PRODUCT_CISCOLINKSYS_WUSB54GR },
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{ USB_VENDOR_CONCEPTRONIC2, USB_PRODUCT_CONCEPTRONIC2_C54RU2 },
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{ USB_VENDOR_DICKSMITH, USB_PRODUCT_DICKSMITH_CWD854F },
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{ USB_VENDOR_DICKSMITH, USB_PRODUCT_DICKSMITH_RT2573 },
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{ USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_DWLG122C1 },
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{ USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_WUA1340 },
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{ USB_VENDOR_GIGABYTE, USB_PRODUCT_GIGABYTE_GNWB01GS },
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{ USB_VENDOR_GIGABYTE, USB_PRODUCT_GIGABYTE_GNWI05GS },
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{ USB_VENDOR_GIGASET, USB_PRODUCT_GIGASET_RT2573 },
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{ USB_VENDOR_GOODWAY, USB_PRODUCT_GOODWAY_RT2573 },
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{ USB_VENDOR_GUILLEMOT, USB_PRODUCT_GUILLEMOT_HWGUSB254LB },
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{ USB_VENDOR_GUILLEMOT, USB_PRODUCT_GUILLEMOT_HWGUSB254V2AP },
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{ USB_VENDOR_HUAWEI3COM, USB_PRODUCT_HUAWEI3COM_WUB320G },
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{ USB_VENDOR_MELCO, USB_PRODUCT_MELCO_G54HP },
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{ USB_VENDOR_MELCO, USB_PRODUCT_MELCO_SG54HP },
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{ USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_1 },
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{ USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_2 },
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{ USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_3 },
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{ USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_4 },
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{ USB_VENDOR_NOVATECH, USB_PRODUCT_NOVATECH_RT2573 },
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{ USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_GWUS54HP },
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{ USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_GWUS54MINI2 },
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{ USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_GWUSMM },
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{ USB_VENDOR_QCOM, USB_PRODUCT_QCOM_RT2573 },
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{ USB_VENDOR_QCOM, USB_PRODUCT_QCOM_RT2573_2 },
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{ USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2573 },
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{ USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2573_2 },
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{ USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2671 },
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{ USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_WL113R2 },
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{ USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_WL172 },
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{ USB_VENDOR_SURECOM, USB_PRODUCT_SURECOM_RT2573 }
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};
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MODULE_DEPEND(rum, wlan, 1, 1, 1);
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MODULE_DEPEND(rum, wlan_amrr, 1, 1, 1);
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MODULE_DEPEND(rum, usb, 1, 1, 1);
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static int rum_alloc_tx_list(struct rum_softc *);
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static void rum_free_tx_list(struct rum_softc *);
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static int rum_alloc_rx_list(struct rum_softc *);
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static void rum_free_rx_list(struct rum_softc *);
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static int rum_media_change(struct ifnet *);
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static void rum_task(void *);
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static void rum_scantask(void *);
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static int rum_newstate(struct ieee80211com *,
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enum ieee80211_state, int);
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static void rum_txeof(usbd_xfer_handle, usbd_private_handle,
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usbd_status);
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static void rum_rxeof(usbd_xfer_handle, usbd_private_handle,
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usbd_status);
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static int rum_rxrate(struct rum_rx_desc *);
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static int rum_ack_rate(struct ieee80211com *, int);
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static uint16_t rum_txtime(int, int, uint32_t);
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static uint8_t rum_plcp_signal(int);
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static void rum_setup_tx_desc(struct rum_softc *,
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struct rum_tx_desc *, uint32_t, uint16_t, int,
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int);
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static int rum_tx_mgt(struct rum_softc *, struct mbuf *,
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struct ieee80211_node *);
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static int rum_tx_raw(struct rum_softc *, struct mbuf *,
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struct ieee80211_node *,
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const struct ieee80211_bpf_params *);
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static int rum_tx_data(struct rum_softc *, struct mbuf *,
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struct ieee80211_node *);
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static void rum_start(struct ifnet *);
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static void rum_watchdog(void *);
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static int rum_ioctl(struct ifnet *, u_long, caddr_t);
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static void rum_eeprom_read(struct rum_softc *, uint16_t, void *,
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int);
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static uint32_t rum_read(struct rum_softc *, uint16_t);
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static void rum_read_multi(struct rum_softc *, uint16_t, void *,
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int);
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static void rum_write(struct rum_softc *, uint16_t, uint32_t);
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static void rum_write_multi(struct rum_softc *, uint16_t, void *,
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size_t);
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static void rum_bbp_write(struct rum_softc *, uint8_t, uint8_t);
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static uint8_t rum_bbp_read(struct rum_softc *, uint8_t);
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static void rum_rf_write(struct rum_softc *, uint8_t, uint32_t);
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static void rum_select_antenna(struct rum_softc *);
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static void rum_enable_mrr(struct rum_softc *);
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static void rum_set_txpreamble(struct rum_softc *);
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static void rum_set_basicrates(struct rum_softc *);
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static void rum_select_band(struct rum_softc *,
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struct ieee80211_channel *);
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static void rum_set_chan(struct rum_softc *,
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struct ieee80211_channel *);
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static void rum_enable_tsf_sync(struct rum_softc *);
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static void rum_update_slot(struct ifnet *);
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static void rum_set_bssid(struct rum_softc *, const uint8_t *);
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static void rum_set_macaddr(struct rum_softc *, const uint8_t *);
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static void rum_update_promisc(struct rum_softc *);
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static const char *rum_get_rf(int);
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static void rum_read_eeprom(struct rum_softc *);
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static int rum_bbp_init(struct rum_softc *);
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static void rum_init(void *);
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static void rum_stop(void *);
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static int rum_load_microcode(struct rum_softc *, const u_char *,
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size_t);
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static int rum_prepare_beacon(struct rum_softc *);
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static int rum_raw_xmit(struct ieee80211_node *, struct mbuf *,
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const struct ieee80211_bpf_params *);
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static void rum_scan_start(struct ieee80211com *);
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static void rum_scan_end(struct ieee80211com *);
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static void rum_set_channel(struct ieee80211com *);
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static int rum_get_rssi(struct rum_softc *, uint8_t);
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static void rum_amrr_start(struct rum_softc *,
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struct ieee80211_node *);
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static void rum_amrr_timeout(void *);
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static void rum_amrr_update(usbd_xfer_handle, usbd_private_handle,
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usbd_status);
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static const struct {
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uint32_t reg;
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uint32_t val;
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} rum_def_mac[] = {
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{ RT2573_TXRX_CSR0, 0x025fb032 },
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{ RT2573_TXRX_CSR1, 0x9eaa9eaf },
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{ RT2573_TXRX_CSR2, 0x8a8b8c8d },
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{ RT2573_TXRX_CSR3, 0x00858687 },
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{ RT2573_TXRX_CSR7, 0x2e31353b },
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{ RT2573_TXRX_CSR8, 0x2a2a2a2c },
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{ RT2573_TXRX_CSR15, 0x0000000f },
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{ RT2573_MAC_CSR6, 0x00000fff },
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{ RT2573_MAC_CSR8, 0x016c030a },
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{ RT2573_MAC_CSR10, 0x00000718 },
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{ RT2573_MAC_CSR12, 0x00000004 },
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{ RT2573_MAC_CSR13, 0x00007f00 },
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{ RT2573_SEC_CSR0, 0x00000000 },
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{ RT2573_SEC_CSR1, 0x00000000 },
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{ RT2573_SEC_CSR5, 0x00000000 },
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{ RT2573_PHY_CSR1, 0x000023b0 },
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{ RT2573_PHY_CSR5, 0x00040a06 },
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{ RT2573_PHY_CSR6, 0x00080606 },
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{ RT2573_PHY_CSR7, 0x00000408 },
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{ RT2573_AIFSN_CSR, 0x00002273 },
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{ RT2573_CWMIN_CSR, 0x00002344 },
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{ RT2573_CWMAX_CSR, 0x000034aa }
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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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} rum_def_bbp[] = {
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{ 3, 0x80 },
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{ 15, 0x30 },
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{ 17, 0x20 },
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{ 21, 0xc8 },
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{ 22, 0x38 },
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{ 23, 0x06 },
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{ 24, 0xfe },
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{ 25, 0x0a },
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{ 26, 0x0d },
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{ 32, 0x0b },
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{ 34, 0x12 },
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{ 37, 0x07 },
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{ 39, 0xf8 },
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{ 41, 0x60 },
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{ 53, 0x10 },
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{ 54, 0x18 },
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{ 60, 0x10 },
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{ 61, 0x04 },
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{ 62, 0x04 },
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{ 75, 0xfe },
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{ 86, 0xfe },
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{ 88, 0xfe },
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{ 90, 0x0f },
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{ 99, 0x00 },
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{ 102, 0x16 },
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{ 107, 0x04 }
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};
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static const struct rfprog {
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uint8_t chan;
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uint32_t r1, r2, r3, r4;
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} rum_rf5226[] = {
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{ 1, 0x00b03, 0x001e1, 0x1a014, 0x30282 },
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{ 2, 0x00b03, 0x001e1, 0x1a014, 0x30287 },
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{ 3, 0x00b03, 0x001e2, 0x1a014, 0x30282 },
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{ 4, 0x00b03, 0x001e2, 0x1a014, 0x30287 },
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{ 5, 0x00b03, 0x001e3, 0x1a014, 0x30282 },
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{ 6, 0x00b03, 0x001e3, 0x1a014, 0x30287 },
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{ 7, 0x00b03, 0x001e4, 0x1a014, 0x30282 },
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{ 8, 0x00b03, 0x001e4, 0x1a014, 0x30287 },
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{ 9, 0x00b03, 0x001e5, 0x1a014, 0x30282 },
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{ 10, 0x00b03, 0x001e5, 0x1a014, 0x30287 },
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{ 11, 0x00b03, 0x001e6, 0x1a014, 0x30282 },
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{ 12, 0x00b03, 0x001e6, 0x1a014, 0x30287 },
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{ 13, 0x00b03, 0x001e7, 0x1a014, 0x30282 },
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{ 14, 0x00b03, 0x001e8, 0x1a014, 0x30284 },
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{ 34, 0x00b03, 0x20266, 0x36014, 0x30282 },
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{ 38, 0x00b03, 0x20267, 0x36014, 0x30284 },
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{ 42, 0x00b03, 0x20268, 0x36014, 0x30286 },
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{ 46, 0x00b03, 0x20269, 0x36014, 0x30288 },
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{ 36, 0x00b03, 0x00266, 0x26014, 0x30288 },
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{ 40, 0x00b03, 0x00268, 0x26014, 0x30280 },
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{ 44, 0x00b03, 0x00269, 0x26014, 0x30282 },
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{ 48, 0x00b03, 0x0026a, 0x26014, 0x30284 },
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{ 52, 0x00b03, 0x0026b, 0x26014, 0x30286 },
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{ 56, 0x00b03, 0x0026c, 0x26014, 0x30288 },
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{ 60, 0x00b03, 0x0026e, 0x26014, 0x30280 },
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{ 64, 0x00b03, 0x0026f, 0x26014, 0x30282 },
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{ 100, 0x00b03, 0x0028a, 0x2e014, 0x30280 },
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{ 104, 0x00b03, 0x0028b, 0x2e014, 0x30282 },
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{ 108, 0x00b03, 0x0028c, 0x2e014, 0x30284 },
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{ 112, 0x00b03, 0x0028d, 0x2e014, 0x30286 },
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{ 116, 0x00b03, 0x0028e, 0x2e014, 0x30288 },
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{ 120, 0x00b03, 0x002a0, 0x2e014, 0x30280 },
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{ 124, 0x00b03, 0x002a1, 0x2e014, 0x30282 },
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{ 128, 0x00b03, 0x002a2, 0x2e014, 0x30284 },
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{ 132, 0x00b03, 0x002a3, 0x2e014, 0x30286 },
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{ 136, 0x00b03, 0x002a4, 0x2e014, 0x30288 },
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{ 140, 0x00b03, 0x002a6, 0x2e014, 0x30280 },
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{ 149, 0x00b03, 0x002a8, 0x2e014, 0x30287 },
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{ 153, 0x00b03, 0x002a9, 0x2e014, 0x30289 },
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{ 157, 0x00b03, 0x002ab, 0x2e014, 0x30281 },
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{ 161, 0x00b03, 0x002ac, 0x2e014, 0x30283 },
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{ 165, 0x00b03, 0x002ad, 0x2e014, 0x30285 }
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}, rum_rf5225[] = {
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{ 1, 0x00b33, 0x011e1, 0x1a014, 0x30282 },
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{ 2, 0x00b33, 0x011e1, 0x1a014, 0x30287 },
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{ 3, 0x00b33, 0x011e2, 0x1a014, 0x30282 },
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{ 4, 0x00b33, 0x011e2, 0x1a014, 0x30287 },
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{ 5, 0x00b33, 0x011e3, 0x1a014, 0x30282 },
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{ 6, 0x00b33, 0x011e3, 0x1a014, 0x30287 },
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{ 7, 0x00b33, 0x011e4, 0x1a014, 0x30282 },
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{ 8, 0x00b33, 0x011e4, 0x1a014, 0x30287 },
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{ 9, 0x00b33, 0x011e5, 0x1a014, 0x30282 },
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{ 10, 0x00b33, 0x011e5, 0x1a014, 0x30287 },
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{ 11, 0x00b33, 0x011e6, 0x1a014, 0x30282 },
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{ 12, 0x00b33, 0x011e6, 0x1a014, 0x30287 },
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{ 13, 0x00b33, 0x011e7, 0x1a014, 0x30282 },
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{ 14, 0x00b33, 0x011e8, 0x1a014, 0x30284 },
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{ 34, 0x00b33, 0x01266, 0x26014, 0x30282 },
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{ 38, 0x00b33, 0x01267, 0x26014, 0x30284 },
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{ 42, 0x00b33, 0x01268, 0x26014, 0x30286 },
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{ 46, 0x00b33, 0x01269, 0x26014, 0x30288 },
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{ 36, 0x00b33, 0x01266, 0x26014, 0x30288 },
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{ 40, 0x00b33, 0x01268, 0x26014, 0x30280 },
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{ 44, 0x00b33, 0x01269, 0x26014, 0x30282 },
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{ 48, 0x00b33, 0x0126a, 0x26014, 0x30284 },
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{ 52, 0x00b33, 0x0126b, 0x26014, 0x30286 },
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{ 56, 0x00b33, 0x0126c, 0x26014, 0x30288 },
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{ 60, 0x00b33, 0x0126e, 0x26014, 0x30280 },
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{ 64, 0x00b33, 0x0126f, 0x26014, 0x30282 },
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{ 100, 0x00b33, 0x0128a, 0x2e014, 0x30280 },
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{ 104, 0x00b33, 0x0128b, 0x2e014, 0x30282 },
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{ 108, 0x00b33, 0x0128c, 0x2e014, 0x30284 },
|
|
{ 112, 0x00b33, 0x0128d, 0x2e014, 0x30286 },
|
|
{ 116, 0x00b33, 0x0128e, 0x2e014, 0x30288 },
|
|
{ 120, 0x00b33, 0x012a0, 0x2e014, 0x30280 },
|
|
{ 124, 0x00b33, 0x012a1, 0x2e014, 0x30282 },
|
|
{ 128, 0x00b33, 0x012a2, 0x2e014, 0x30284 },
|
|
{ 132, 0x00b33, 0x012a3, 0x2e014, 0x30286 },
|
|
{ 136, 0x00b33, 0x012a4, 0x2e014, 0x30288 },
|
|
{ 140, 0x00b33, 0x012a6, 0x2e014, 0x30280 },
|
|
|
|
{ 149, 0x00b33, 0x012a8, 0x2e014, 0x30287 },
|
|
{ 153, 0x00b33, 0x012a9, 0x2e014, 0x30289 },
|
|
{ 157, 0x00b33, 0x012ab, 0x2e014, 0x30281 },
|
|
{ 161, 0x00b33, 0x012ac, 0x2e014, 0x30283 },
|
|
{ 165, 0x00b33, 0x012ad, 0x2e014, 0x30285 }
|
|
};
|
|
|
|
static int
|
|
rum_match(device_t self)
|
|
{
|
|
struct usb_attach_arg *uaa = device_get_ivars(self);
|
|
|
|
if (uaa->iface != NULL)
|
|
return UMATCH_NONE;
|
|
|
|
return (usb_lookup(rum_devs, uaa->vendor, uaa->product) != NULL) ?
|
|
UMATCH_VENDOR_PRODUCT : UMATCH_NONE;
|
|
}
|
|
|
|
static int
|
|
rum_attach(device_t self)
|
|
{
|
|
struct rum_softc *sc = device_get_softc(self);
|
|
struct usb_attach_arg *uaa = device_get_ivars(self);
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct ifnet *ifp;
|
|
const uint8_t *ucode = NULL;
|
|
usb_interface_descriptor_t *id;
|
|
usb_endpoint_descriptor_t *ed;
|
|
usbd_status error;
|
|
int i, ntries, size, bands;
|
|
uint32_t tmp;
|
|
|
|
sc->sc_udev = uaa->device;
|
|
sc->sc_dev = self;
|
|
|
|
if (usbd_set_config_no(sc->sc_udev, RT2573_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, RT2573_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 iface %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, rum_task, sc);
|
|
usb_init_task(&sc->sc_scantask, rum_scantask, sc);
|
|
callout_init(&sc->watchdog_ch, 0);
|
|
callout_init(&sc->amrr_ch, 0);
|
|
|
|
/* retrieve RT2573 rev. no */
|
|
for (ntries = 0; ntries < 1000; ntries++) {
|
|
if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0)
|
|
break;
|
|
DELAY(1000);
|
|
}
|
|
if (ntries == 1000) {
|
|
printf("%s: timeout waiting for chip to settle\n",
|
|
device_get_nameunit(sc->sc_dev));
|
|
return ENXIO;
|
|
}
|
|
|
|
/* retrieve MAC address and various other things from EEPROM */
|
|
rum_read_eeprom(sc);
|
|
|
|
printf("%s: MAC/BBP RT2573 (rev 0x%05x), RF %s\n",
|
|
device_get_nameunit(sc->sc_dev), tmp, rum_get_rf(sc->rf_rev));
|
|
|
|
ucode = rt2573_ucode;
|
|
size = sizeof rt2573_ucode;
|
|
error = rum_load_microcode(sc, ucode, size);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev, "could not load 8051 microcode\n");
|
|
mtx_destroy(&sc->sc_mtx);
|
|
return ENXIO;
|
|
}
|
|
|
|
ifp = sc->sc_ifp = if_alloc(IFT_ETHER);
|
|
if (ifp == NULL) {
|
|
printf("%s: can not if_alloc()\n",
|
|
device_get_nameunit(sc->sc_dev));
|
|
mtx_destroy(&sc->sc_mtx);
|
|
return ENXIO;
|
|
}
|
|
|
|
ifp->if_softc = sc;
|
|
if_initname(ifp, "rum", 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 = rum_init;
|
|
ifp->if_ioctl = rum_ioctl;
|
|
ifp->if_start = rum_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);
|
|
ieee80211_init_channels(ic, 0, CTRY_DEFAULT, bands, 0, 1);
|
|
|
|
if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) {
|
|
struct ieee80211_channel *c;
|
|
|
|
/* set supported .11a channels */
|
|
for (i = 34; i <= 46; i += 4) {
|
|
c = &ic->ic_channels[ic->ic_nchans++];
|
|
c->ic_freq = ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ);
|
|
c->ic_flags = IEEE80211_CHAN_A;
|
|
c->ic_ieee = i;
|
|
}
|
|
for (i = 36; i <= 64; i += 4) {
|
|
c = &ic->ic_channels[ic->ic_nchans++];
|
|
c->ic_freq = ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ);
|
|
c->ic_flags = IEEE80211_CHAN_A;
|
|
c->ic_ieee = i;
|
|
}
|
|
for (i = 100; i <= 140; i += 4) {
|
|
c = &ic->ic_channels[ic->ic_nchans++];
|
|
c->ic_freq = ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ);
|
|
c->ic_flags = IEEE80211_CHAN_A;
|
|
c->ic_ieee = i;
|
|
}
|
|
for (i = 149; i <= 165; i += 4) {
|
|
c = &ic->ic_channels[ic->ic_nchans++];
|
|
c->ic_freq = ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ);
|
|
c->ic_flags = IEEE80211_CHAN_A;
|
|
c->ic_ieee = i;
|
|
}
|
|
}
|
|
|
|
ieee80211_ifattach(ic);
|
|
ic->ic_scan_start = rum_scan_start;
|
|
ic->ic_scan_end = rum_scan_end;
|
|
ic->ic_set_channel = rum_set_channel;
|
|
|
|
/* enable s/w bmiss handling in sta mode */
|
|
ic->ic_flags_ext |= IEEE80211_FEXT_SWBMISS;
|
|
|
|
/* override state transition machine */
|
|
sc->sc_newstate = ic->ic_newstate;
|
|
ic->ic_newstate = rum_newstate;
|
|
ic->ic_raw_xmit = rum_raw_xmit;
|
|
ieee80211_media_init(ic, rum_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) + IEEE80211_RADIOTAP_HDRLEN,
|
|
&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(RT2573_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(RT2573_TX_RADIOTAP_PRESENT);
|
|
|
|
if (bootverbose)
|
|
ieee80211_announce(ic);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
rum_detach(device_t self)
|
|
{
|
|
struct rum_softc *sc = device_get_softc(self);
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct ifnet *ifp = ic->ic_ifp;
|
|
|
|
rum_stop(sc);
|
|
usb_rem_task(sc->sc_udev, &sc->sc_task);
|
|
usb_rem_task(sc->sc_udev, &sc->sc_scantask);
|
|
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);
|
|
}
|
|
|
|
rum_free_rx_list(sc);
|
|
rum_free_tx_list(sc);
|
|
|
|
bpfdetach(ifp);
|
|
ieee80211_ifdetach(ic);
|
|
if_free(ifp);
|
|
|
|
mtx_destroy(&sc->sc_mtx);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
rum_alloc_tx_list(struct rum_softc *sc)
|
|
{
|
|
struct rum_tx_data *data;
|
|
int i, error;
|
|
|
|
sc->tx_queued = 0;
|
|
|
|
for (i = 0; i < RUM_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,
|
|
RT2573_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;
|
|
}
|
|
/* clean Tx descriptor */
|
|
bzero(data->buf, RT2573_TX_DESC_SIZE);
|
|
}
|
|
|
|
return 0;
|
|
|
|
fail: rum_free_tx_list(sc);
|
|
return error;
|
|
}
|
|
|
|
static void
|
|
rum_free_tx_list(struct rum_softc *sc)
|
|
{
|
|
struct rum_tx_data *data;
|
|
int i;
|
|
|
|
for (i = 0; i < RUM_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
|
|
rum_alloc_rx_list(struct rum_softc *sc)
|
|
{
|
|
struct rum_rx_data *data;
|
|
int i, error;
|
|
|
|
for (i = 0; i < RUM_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: rum_free_tx_list(sc);
|
|
return error;
|
|
}
|
|
|
|
static void
|
|
rum_free_rx_list(struct rum_softc *sc)
|
|
{
|
|
struct rum_rx_data *data;
|
|
int i;
|
|
|
|
for (i = 0; i < RUM_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
|
|
rum_media_change(struct ifnet *ifp)
|
|
{
|
|
struct rum_softc *sc = ifp->if_softc;
|
|
int error;
|
|
|
|
RUM_LOCK(sc);
|
|
|
|
error = ieee80211_media_change(ifp);
|
|
if (error != ENETRESET) {
|
|
RUM_UNLOCK(sc);
|
|
return error;
|
|
}
|
|
|
|
if ((ifp->if_flags & IFF_UP) &&
|
|
(ifp->if_drv_flags & IFF_DRV_RUNNING))
|
|
rum_init(sc);
|
|
|
|
RUM_UNLOCK(sc);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
rum_task(void *arg)
|
|
{
|
|
struct rum_softc *sc = arg;
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
enum ieee80211_state ostate;
|
|
struct ieee80211_node *ni;
|
|
uint32_t tmp;
|
|
|
|
ostate = ic->ic_state;
|
|
|
|
RUM_LOCK(sc);
|
|
|
|
switch (sc->sc_state) {
|
|
case IEEE80211_S_INIT:
|
|
if (ostate == IEEE80211_S_RUN) {
|
|
/* abort TSF synchronization */
|
|
tmp = rum_read(sc, RT2573_TXRX_CSR9);
|
|
rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff);
|
|
}
|
|
break;
|
|
|
|
case IEEE80211_S_RUN:
|
|
ni = ic->ic_bss;
|
|
|
|
if (ic->ic_opmode != IEEE80211_M_MONITOR) {
|
|
rum_update_slot(ic->ic_ifp);
|
|
rum_enable_mrr(sc);
|
|
rum_set_txpreamble(sc);
|
|
rum_set_basicrates(sc);
|
|
rum_set_bssid(sc, ni->ni_bssid);
|
|
}
|
|
|
|
if (ic->ic_opmode == IEEE80211_M_HOSTAP ||
|
|
ic->ic_opmode == IEEE80211_M_IBSS)
|
|
rum_prepare_beacon(sc);
|
|
|
|
if (ic->ic_opmode != IEEE80211_M_MONITOR)
|
|
rum_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)
|
|
rum_amrr_start(sc, ni);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
RUM_UNLOCK(sc);
|
|
|
|
sc->sc_newstate(ic, sc->sc_state, sc->sc_arg);
|
|
}
|
|
|
|
static int
|
|
rum_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg)
|
|
{
|
|
struct rum_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 RUM_RATE_IS_OFDM(rate) ((rate) >= 12 && (rate) != 22)
|
|
|
|
#define RUM_ACK_SIZE 14 /* 10 + 4(FCS) */
|
|
#define RUM_CTS_SIZE 14 /* 10 + 4(FCS) */
|
|
|
|
static void
|
|
rum_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
|
|
{
|
|
struct rum_tx_data *data = priv;
|
|
struct rum_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_tx_pipeh);
|
|
|
|
ifp->if_oerrors++;
|
|
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;
|
|
rum_start(ifp);
|
|
}
|
|
|
|
static void
|
|
rum_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
|
|
{
|
|
struct rum_rx_data *data = priv;
|
|
struct rum_softc *sc = data->sc;
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct ifnet *ifp = ic->ic_ifp;
|
|
struct rum_rx_desc *desc;
|
|
struct ieee80211_frame *wh;
|
|
struct ieee80211_node *ni;
|
|
struct mbuf *mnew, *m;
|
|
int len, rssi;
|
|
|
|
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 < RT2573_RX_DESC_SIZE + sizeof (struct ieee80211_frame_min)) {
|
|
DPRINTF(("%s: xfer too short %d\n",
|
|
device_get_nameunit(sc->sc_dev), len));
|
|
ifp->if_ierrors++;
|
|
goto skip;
|
|
}
|
|
|
|
desc = (struct rum_rx_desc *)data->buf;
|
|
|
|
if (le32toh(desc->flags) & RT2573_RX_CRC_ERROR) {
|
|
/*
|
|
* This should not happen since we did not request to receive
|
|
* those frames when we filled RT2573_TXRX_CSR0.
|
|
*/
|
|
DPRINTFN(5, ("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_data = (caddr_t)(desc + 1);
|
|
m->m_pkthdr.len = m->m_len = (le32toh(desc->flags) >> 16) & 0xfff;
|
|
|
|
rssi = rum_get_rssi(sc, desc->rssi);
|
|
|
|
wh = mtod(m, struct ieee80211_frame *);
|
|
ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh);
|
|
|
|
/* Error happened during RSSI conversion. */
|
|
if (rssi < 0)
|
|
rssi = ni->ni_rssi;
|
|
|
|
if (bpf_peers_present(sc->sc_drvbpf)) {
|
|
struct rum_rx_radiotap_header *tap = &sc->sc_rxtap;
|
|
|
|
tap->wr_flags = IEEE80211_RADIOTAP_F_FCS;
|
|
tap->wr_rate = rum_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 = rssi;
|
|
|
|
bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_rxtap_len, m);
|
|
}
|
|
|
|
/* send the frame to the 802.11 layer */
|
|
ieee80211_input(ic, m, ni, rssi, RT2573_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, rum_rxeof);
|
|
usbd_transfer(xfer);
|
|
}
|
|
|
|
/*
|
|
* This function is only used by the Rx radiotap code.
|
|
*/
|
|
static int
|
|
rum_rxrate(struct rum_rx_desc *desc)
|
|
{
|
|
if (le32toh(desc->flags) & RT2573_RX_OFDM) {
|
|
/* reverse function of rum_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 */
|
|
}
|
|
|
|
/*
|
|
* Return the expected ack rate for a frame transmitted at rate `rate'.
|
|
*/
|
|
static int
|
|
rum_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
|
|
rum_txtime(int len, int rate, uint32_t flags)
|
|
{
|
|
uint16_t txtime;
|
|
|
|
if (RUM_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
|
|
rum_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
|
|
rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc,
|
|
uint32_t flags, uint16_t xflags, int len, int rate)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
uint16_t plcp_length;
|
|
int remainder;
|
|
|
|
desc->flags = htole32(flags);
|
|
desc->flags |= htole32(RT2573_TX_VALID);
|
|
desc->flags |= htole32(len << 16);
|
|
|
|
desc->xflags = htole16(xflags);
|
|
|
|
desc->wme = htole16(RT2573_QID(0) | RT2573_AIFSN(2) |
|
|
RT2573_LOGCWMIN(4) | RT2573_LOGCWMAX(10));
|
|
|
|
/* setup PLCP fields */
|
|
desc->plcp_signal = rum_plcp_signal(rate);
|
|
desc->plcp_service = 4;
|
|
|
|
len += IEEE80211_CRC_LEN;
|
|
if (RUM_RATE_IS_OFDM(rate)) {
|
|
desc->flags |= htole32(RT2573_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 |= RT2573_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;
|
|
}
|
|
}
|
|
|
|
#define RUM_TX_TIMEOUT 5000
|
|
|
|
static int
|
|
rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct rum_tx_desc *desc;
|
|
struct rum_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 rum_tx_desc *)data->buf;
|
|
|
|
rate = IEEE80211_IS_CHAN_5GHZ(ic->ic_curchan) ? 12 : 2;
|
|
|
|
data->m = m0;
|
|
data->ni = ni;
|
|
|
|
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;
|
|
}
|
|
}
|
|
|
|
wh = mtod(m0, struct ieee80211_frame *);
|
|
|
|
if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
|
|
flags |= RT2573_TX_NEED_ACK;
|
|
|
|
dur = rum_txtime(RUM_ACK_SIZE, rum_ack_rate(ic, rate),
|
|
ic->ic_flags) + sc->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_SUBTYPE_MASK)) ==
|
|
(IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP))
|
|
flags |= RT2573_TX_TIMESTAMP;
|
|
}
|
|
|
|
if (bpf_peers_present(sc->sc_drvbpf)) {
|
|
struct rum_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 + RT2573_TX_DESC_SIZE);
|
|
rum_setup_tx_desc(sc, desc, flags, 0, m0->m_pkthdr.len, rate);
|
|
|
|
/* align end on a 4-bytes boundary */
|
|
xferlen = (RT2573_TX_DESC_SIZE + m0->m_pkthdr.len + 3) & ~3;
|
|
|
|
/*
|
|
* No space left in the last URB to store the extra 4 bytes, force
|
|
* sending of another URB.
|
|
*/
|
|
if ((xferlen % 64) == 0)
|
|
xferlen += 4;
|
|
|
|
DPRINTFN(10, ("sending mgt frame len=%d rate=%d xfer len=%d\n",
|
|
m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate, xferlen));
|
|
|
|
usbd_setup_xfer(data->xfer, sc->sc_tx_pipeh, data, data->buf, xferlen,
|
|
USBD_FORCE_SHORT_XFER | USBD_NO_COPY, RUM_TX_TIMEOUT, rum_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
|
|
rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni,
|
|
const struct ieee80211_bpf_params *params)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct rum_tx_desc *desc;
|
|
struct rum_tx_data *data;
|
|
uint32_t flags;
|
|
usbd_status error;
|
|
int xferlen, rate;
|
|
|
|
data = &sc->tx_data[0];
|
|
desc = (struct rum_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 rum_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 |= RT2573_TX_NEED_ACK;
|
|
|
|
m_copydata(m0, 0, m0->m_pkthdr.len, data->buf + RT2573_TX_DESC_SIZE);
|
|
/* XXX need to setup descriptor ourself */
|
|
rum_setup_tx_desc(sc, desc, flags, 0, m0->m_pkthdr.len, rate);
|
|
|
|
/* align end on a 4-bytes boundary */
|
|
xferlen = (RT2573_TX_DESC_SIZE + m0->m_pkthdr.len + 3) & ~3;
|
|
|
|
/*
|
|
* No space left in the last URB to store the extra 4 bytes, force
|
|
* sending of another URB.
|
|
*/
|
|
if ((xferlen % 64) == 0)
|
|
xferlen += 4;
|
|
|
|
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, RUM_TX_TIMEOUT,
|
|
rum_txeof);
|
|
|
|
error = usbd_transfer(data->xfer);
|
|
if (error != USBD_NORMAL_COMPLETION && error != USBD_IN_PROGRESS)
|
|
return error;
|
|
|
|
sc->tx_queued++;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct rum_tx_desc *desc;
|
|
struct rum_tx_data *data;
|
|
struct ieee80211_frame *wh;
|
|
struct ieee80211_key *k;
|
|
uint32_t flags = 0;
|
|
uint16_t dur;
|
|
usbd_status error;
|
|
int rate, xferlen;
|
|
|
|
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 rum_tx_desc *)data->buf;
|
|
|
|
data->m = m0;
|
|
data->ni = ni;
|
|
|
|
if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
|
|
flags |= RT2573_TX_NEED_ACK;
|
|
flags |= RT2573_TX_MORE_FRAG;
|
|
|
|
dur = rum_txtime(RUM_ACK_SIZE, rum_ack_rate(ic, rate),
|
|
ic->ic_flags) + sc->sifs;
|
|
*(uint16_t *)wh->i_dur = htole16(dur);
|
|
}
|
|
|
|
if (bpf_peers_present(sc->sc_drvbpf)) {
|
|
struct rum_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 + RT2573_TX_DESC_SIZE);
|
|
rum_setup_tx_desc(sc, desc, flags, 0, m0->m_pkthdr.len, rate);
|
|
|
|
/* align end on a 4-bytes boundary */
|
|
xferlen = (RT2573_TX_DESC_SIZE + m0->m_pkthdr.len + 3) & ~3;
|
|
|
|
/*
|
|
* No space left in the last URB to store the extra 4 bytes, force
|
|
* sending of another URB.
|
|
*/
|
|
if ((xferlen % 64) == 0)
|
|
xferlen += 4;
|
|
|
|
DPRINTFN(10, ("sending frame len=%d rate=%d xfer len=%d\n",
|
|
m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate, xferlen));
|
|
|
|
usbd_setup_xfer(data->xfer, sc->sc_tx_pipeh, data, data->buf, xferlen,
|
|
USBD_FORCE_SHORT_XFER | USBD_NO_COPY, RUM_TX_TIMEOUT, rum_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
|
|
rum_start(struct ifnet *ifp)
|
|
{
|
|
struct rum_softc *sc = ifp->if_softc;
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct ieee80211_node *ni;
|
|
struct mbuf *m0;
|
|
struct ether_header *eh;
|
|
|
|
for (;;) {
|
|
IF_POLL(&ic->ic_mgtq, m0);
|
|
if (m0 != NULL) {
|
|
if (sc->tx_queued >= RUM_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 (rum_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 >= RUM_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 (rum_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, rum_watchdog, sc);
|
|
}
|
|
}
|
|
|
|
static void
|
|
rum_watchdog(void *arg)
|
|
{
|
|
struct rum_softc *sc = arg;
|
|
|
|
RUM_LOCK(sc);
|
|
|
|
if (sc->sc_tx_timer > 0) {
|
|
if (--sc->sc_tx_timer == 0) {
|
|
device_printf(sc->sc_dev, "device timeout\n");
|
|
/*rum_init(ifp); XXX needs a process context! */
|
|
sc->sc_ifp->if_oerrors++;
|
|
RUM_UNLOCK(sc);
|
|
return;
|
|
}
|
|
callout_reset(&sc->watchdog_ch, hz, rum_watchdog, sc);
|
|
}
|
|
|
|
RUM_UNLOCK(sc);
|
|
}
|
|
|
|
static int
|
|
rum_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
|
|
{
|
|
struct rum_softc *sc = ifp->if_softc;
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
int error = 0;
|
|
|
|
RUM_LOCK(sc);
|
|
|
|
switch (cmd) {
|
|
case SIOCSIFFLAGS:
|
|
if (ifp->if_flags & IFF_UP) {
|
|
if (ifp->if_drv_flags & IFF_DRV_RUNNING)
|
|
rum_update_promisc(sc);
|
|
else
|
|
rum_init(sc);
|
|
} else {
|
|
if (ifp->if_drv_flags & IFF_DRV_RUNNING)
|
|
rum_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))
|
|
rum_init(sc);
|
|
error = 0;
|
|
}
|
|
|
|
RUM_UNLOCK(sc);
|
|
|
|
return error;
|
|
}
|
|
|
|
static void
|
|
rum_eeprom_read(struct rum_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 = RT2573_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 uint32_t
|
|
rum_read(struct rum_softc *sc, uint16_t reg)
|
|
{
|
|
uint32_t val;
|
|
|
|
rum_read_multi(sc, reg, &val, sizeof val);
|
|
|
|
return le32toh(val);
|
|
}
|
|
|
|
static void
|
|
rum_read_multi(struct rum_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 = RT2573_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 multi read MAC register: %s\n",
|
|
device_get_nameunit(sc->sc_dev), usbd_errstr(error));
|
|
}
|
|
}
|
|
|
|
static void
|
|
rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val)
|
|
{
|
|
uint32_t tmp = htole32(val);
|
|
|
|
rum_write_multi(sc, reg, &tmp, sizeof tmp);
|
|
}
|
|
|
|
static void
|
|
rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len)
|
|
{
|
|
usb_device_request_t req;
|
|
usbd_status error;
|
|
|
|
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
|
|
req.bRequest = RT2573_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 multi write MAC register: %s\n",
|
|
device_get_nameunit(sc->sc_dev), usbd_errstr(error));
|
|
}
|
|
}
|
|
|
|
static void
|
|
rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val)
|
|
{
|
|
uint32_t tmp;
|
|
int ntries;
|
|
|
|
for (ntries = 0; ntries < 5; ntries++) {
|
|
if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY))
|
|
break;
|
|
}
|
|
if (ntries == 5) {
|
|
printf("%s: could not write to BBP\n",
|
|
device_get_nameunit(sc->sc_dev));
|
|
return;
|
|
}
|
|
|
|
tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val;
|
|
rum_write(sc, RT2573_PHY_CSR3, tmp);
|
|
}
|
|
|
|
static uint8_t
|
|
rum_bbp_read(struct rum_softc *sc, uint8_t reg)
|
|
{
|
|
uint32_t val;
|
|
int ntries;
|
|
|
|
for (ntries = 0; ntries < 5; ntries++) {
|
|
if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY))
|
|
break;
|
|
}
|
|
if (ntries == 5) {
|
|
printf("%s: could not read BBP\n",
|
|
device_get_nameunit(sc->sc_dev));
|
|
return 0;
|
|
}
|
|
|
|
val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8;
|
|
rum_write(sc, RT2573_PHY_CSR3, val);
|
|
|
|
for (ntries = 0; ntries < 100; ntries++) {
|
|
val = rum_read(sc, RT2573_PHY_CSR3);
|
|
if (!(val & RT2573_BBP_BUSY))
|
|
return val & 0xff;
|
|
DELAY(1);
|
|
}
|
|
|
|
printf("%s: could not read BBP\n", device_get_nameunit(sc->sc_dev));
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val)
|
|
{
|
|
uint32_t tmp;
|
|
int ntries;
|
|
|
|
for (ntries = 0; ntries < 5; ntries++) {
|
|
if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY))
|
|
break;
|
|
}
|
|
if (ntries == 5) {
|
|
printf("%s: could not write to RF\n",
|
|
device_get_nameunit(sc->sc_dev));
|
|
return;
|
|
}
|
|
|
|
tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 |
|
|
(reg & 3);
|
|
rum_write(sc, RT2573_PHY_CSR4, tmp);
|
|
|
|
/* remember last written value in sc */
|
|
sc->rf_regs[reg] = val;
|
|
|
|
DPRINTFN(15, ("RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff));
|
|
}
|
|
|
|
static void
|
|
rum_select_antenna(struct rum_softc *sc)
|
|
{
|
|
uint8_t bbp4, bbp77;
|
|
uint32_t tmp;
|
|
|
|
bbp4 = rum_bbp_read(sc, 4);
|
|
bbp77 = rum_bbp_read(sc, 77);
|
|
|
|
/* TBD */
|
|
|
|
/* make sure Rx is disabled before switching antenna */
|
|
tmp = rum_read(sc, RT2573_TXRX_CSR0);
|
|
rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX);
|
|
|
|
rum_bbp_write(sc, 4, bbp4);
|
|
rum_bbp_write(sc, 77, bbp77);
|
|
|
|
rum_write(sc, RT2573_TXRX_CSR0, tmp);
|
|
}
|
|
|
|
/*
|
|
* Enable multi-rate retries for frames sent at OFDM rates.
|
|
* In 802.11b/g mode, allow fallback to CCK rates.
|
|
*/
|
|
static void
|
|
rum_enable_mrr(struct rum_softc *sc)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
uint32_t tmp;
|
|
|
|
tmp = rum_read(sc, RT2573_TXRX_CSR4);
|
|
|
|
tmp &= ~RT2573_MRR_CCK_FALLBACK;
|
|
if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_curchan))
|
|
tmp |= RT2573_MRR_CCK_FALLBACK;
|
|
tmp |= RT2573_MRR_ENABLED;
|
|
|
|
rum_write(sc, RT2573_TXRX_CSR4, tmp);
|
|
}
|
|
|
|
static void
|
|
rum_set_txpreamble(struct rum_softc *sc)
|
|
{
|
|
uint32_t tmp;
|
|
|
|
tmp = rum_read(sc, RT2573_TXRX_CSR4);
|
|
|
|
tmp &= ~RT2573_SHORT_PREAMBLE;
|
|
if (sc->sc_ic.ic_flags & IEEE80211_F_SHPREAMBLE)
|
|
tmp |= RT2573_SHORT_PREAMBLE;
|
|
|
|
rum_write(sc, RT2573_TXRX_CSR4, tmp);
|
|
}
|
|
|
|
static void
|
|
rum_set_basicrates(struct rum_softc *sc)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
|
|
/* update basic rate set */
|
|
if (ic->ic_curmode == IEEE80211_MODE_11B) {
|
|
/* 11b basic rates: 1, 2Mbps */
|
|
rum_write(sc, RT2573_TXRX_CSR5, 0x3);
|
|
} else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bss->ni_chan)) {
|
|
/* 11a basic rates: 6, 12, 24Mbps */
|
|
rum_write(sc, RT2573_TXRX_CSR5, 0x150);
|
|
} else {
|
|
/* 11b/g basic rates: 1, 2, 5.5, 11Mbps */
|
|
rum_write(sc, RT2573_TXRX_CSR5, 0xf);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Reprogram MAC/BBP to switch to a new band. Values taken from the reference
|
|
* driver.
|
|
*/
|
|
static void
|
|
rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c)
|
|
{
|
|
uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104;
|
|
uint32_t tmp;
|
|
|
|
/* update all BBP registers that depend on the band */
|
|
bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c;
|
|
bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48;
|
|
if (IEEE80211_IS_CHAN_5GHZ(c)) {
|
|
bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c;
|
|
bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10;
|
|
}
|
|
if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) ||
|
|
(IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) {
|
|
bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10;
|
|
}
|
|
|
|
sc->bbp17 = bbp17;
|
|
rum_bbp_write(sc, 17, bbp17);
|
|
rum_bbp_write(sc, 96, bbp96);
|
|
rum_bbp_write(sc, 104, bbp104);
|
|
|
|
if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) ||
|
|
(IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) {
|
|
rum_bbp_write(sc, 75, 0x80);
|
|
rum_bbp_write(sc, 86, 0x80);
|
|
rum_bbp_write(sc, 88, 0x80);
|
|
}
|
|
|
|
rum_bbp_write(sc, 35, bbp35);
|
|
rum_bbp_write(sc, 97, bbp97);
|
|
rum_bbp_write(sc, 98, bbp98);
|
|
|
|
tmp = rum_read(sc, RT2573_PHY_CSR0);
|
|
tmp &= ~(RT2573_PA_PE_2GHZ | RT2573_PA_PE_5GHZ);
|
|
if (IEEE80211_IS_CHAN_2GHZ(c))
|
|
tmp |= RT2573_PA_PE_2GHZ;
|
|
else
|
|
tmp |= RT2573_PA_PE_5GHZ;
|
|
rum_write(sc, RT2573_PHY_CSR0, tmp);
|
|
|
|
/* 802.11a uses a 16 microseconds short interframe space */
|
|
sc->sifs = IEEE80211_IS_CHAN_5GHZ(c) ? 16 : 10;
|
|
}
|
|
|
|
static void
|
|
rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
const struct rfprog *rfprog;
|
|
uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT;
|
|
int8_t power;
|
|
u_int i, chan;
|
|
|
|
chan = ieee80211_chan2ieee(ic, c);
|
|
if (chan == 0 || chan == IEEE80211_CHAN_ANY)
|
|
return;
|
|
|
|
/* select the appropriate RF settings based on what EEPROM says */
|
|
rfprog = (sc->rf_rev == RT2573_RF_5225 ||
|
|
sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226;
|
|
|
|
/* find the settings for this channel (we know it exists) */
|
|
for (i = 0; rfprog[i].chan != chan; i++);
|
|
|
|
power = sc->txpow[i];
|
|
if (power < 0) {
|
|
bbp94 += power;
|
|
power = 0;
|
|
} else if (power > 31) {
|
|
bbp94 += power - 31;
|
|
power = 31;
|
|
}
|
|
|
|
/*
|
|
* If we are switching from the 2GHz band to the 5GHz band or
|
|
* vice-versa, BBP registers need to be reprogrammed.
|
|
*/
|
|
if (c->ic_flags != ic->ic_curchan->ic_flags) {
|
|
rum_select_band(sc, c);
|
|
rum_select_antenna(sc);
|
|
}
|
|
ic->ic_curchan = c;
|
|
|
|
rum_rf_write(sc, RT2573_RF1, rfprog[i].r1);
|
|
rum_rf_write(sc, RT2573_RF2, rfprog[i].r2);
|
|
rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7);
|
|
rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10);
|
|
|
|
rum_rf_write(sc, RT2573_RF1, rfprog[i].r1);
|
|
rum_rf_write(sc, RT2573_RF2, rfprog[i].r2);
|
|
rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1);
|
|
rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10);
|
|
|
|
rum_rf_write(sc, RT2573_RF1, rfprog[i].r1);
|
|
rum_rf_write(sc, RT2573_RF2, rfprog[i].r2);
|
|
rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7);
|
|
rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10);
|
|
|
|
DELAY(10);
|
|
|
|
/* enable smart mode for MIMO-capable RFs */
|
|
bbp3 = rum_bbp_read(sc, 3);
|
|
|
|
bbp3 &= ~RT2573_SMART_MODE;
|
|
if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527)
|
|
bbp3 |= RT2573_SMART_MODE;
|
|
|
|
rum_bbp_write(sc, 3, bbp3);
|
|
|
|
if (bbp94 != RT2573_BBPR94_DEFAULT)
|
|
rum_bbp_write(sc, 94, bbp94);
|
|
}
|
|
|
|
/*
|
|
* Enable TSF synchronization and tell h/w to start sending beacons for IBSS
|
|
* and HostAP operating modes.
|
|
*/
|
|
static void
|
|
rum_enable_tsf_sync(struct rum_softc *sc)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
uint32_t tmp;
|
|
|
|
if (ic->ic_opmode != IEEE80211_M_STA) {
|
|
/*
|
|
* Change default 16ms TBTT adjustment to 8ms.
|
|
* Must be done before enabling beacon generation.
|
|
*/
|
|
rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8);
|
|
}
|
|
|
|
tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000;
|
|
|
|
/* set beacon interval (in 1/16ms unit) */
|
|
tmp |= ic->ic_bss->ni_intval * 16;
|
|
|
|
tmp |= RT2573_TSF_TICKING | RT2573_ENABLE_TBTT;
|
|
if (ic->ic_opmode == IEEE80211_M_STA)
|
|
tmp |= RT2573_TSF_MODE(1);
|
|
else
|
|
tmp |= RT2573_TSF_MODE(2) | RT2573_GENERATE_BEACON;
|
|
|
|
rum_write(sc, RT2573_TXRX_CSR9, tmp);
|
|
}
|
|
|
|
static void
|
|
rum_update_slot(struct ifnet *ifp)
|
|
{
|
|
struct rum_softc *sc = ifp->if_softc;
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
uint8_t slottime;
|
|
uint32_t tmp;
|
|
|
|
slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20;
|
|
|
|
tmp = rum_read(sc, RT2573_MAC_CSR9);
|
|
tmp = (tmp & ~0xff) | slottime;
|
|
rum_write(sc, RT2573_MAC_CSR9, tmp);
|
|
|
|
DPRINTF(("setting slot time to %uus\n", slottime));
|
|
}
|
|
|
|
static void
|
|
rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid)
|
|
{
|
|
uint32_t tmp;
|
|
|
|
tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24;
|
|
rum_write(sc, RT2573_MAC_CSR4, tmp);
|
|
|
|
tmp = bssid[4] | bssid[5] << 8 | RT2573_ONE_BSSID << 16;
|
|
rum_write(sc, RT2573_MAC_CSR5, tmp);
|
|
}
|
|
|
|
static void
|
|
rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr)
|
|
{
|
|
uint32_t tmp;
|
|
|
|
tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24;
|
|
rum_write(sc, RT2573_MAC_CSR2, tmp);
|
|
|
|
tmp = addr[4] | addr[5] << 8 | 0xff << 16;
|
|
rum_write(sc, RT2573_MAC_CSR3, tmp);
|
|
}
|
|
|
|
static void
|
|
rum_update_promisc(struct rum_softc *sc)
|
|
{
|
|
struct ifnet *ifp = sc->sc_ic.ic_ifp;
|
|
uint32_t tmp;
|
|
|
|
tmp = rum_read(sc, RT2573_TXRX_CSR0);
|
|
|
|
tmp &= ~RT2573_DROP_NOT_TO_ME;
|
|
if (!(ifp->if_flags & IFF_PROMISC))
|
|
tmp |= RT2573_DROP_NOT_TO_ME;
|
|
|
|
rum_write(sc, RT2573_TXRX_CSR0, tmp);
|
|
|
|
DPRINTF(("%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ?
|
|
"entering" : "leaving"));
|
|
}
|
|
|
|
static const char *
|
|
rum_get_rf(int rev)
|
|
{
|
|
switch (rev) {
|
|
case RT2573_RF_2527: return "RT2527 (MIMO XR)";
|
|
case RT2573_RF_2528: return "RT2528";
|
|
case RT2573_RF_5225: return "RT5225 (MIMO XR)";
|
|
case RT2573_RF_5226: return "RT5226";
|
|
default: return "unknown";
|
|
}
|
|
}
|
|
|
|
static void
|
|
rum_read_eeprom(struct rum_softc *sc)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
uint16_t val;
|
|
#ifdef RUM_DEBUG
|
|
int i;
|
|
#endif
|
|
|
|
/* read MAC address */
|
|
rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, ic->ic_myaddr, 6);
|
|
|
|
rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2);
|
|
val = le16toh(val);
|
|
sc->rf_rev = (val >> 11) & 0x1f;
|
|
sc->hw_radio = (val >> 10) & 0x1;
|
|
sc->rx_ant = (val >> 4) & 0x3;
|
|
sc->tx_ant = (val >> 2) & 0x3;
|
|
sc->nb_ant = val & 0x3;
|
|
|
|
DPRINTF(("RF revision=%d\n", sc->rf_rev));
|
|
|
|
rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2);
|
|
val = le16toh(val);
|
|
sc->ext_5ghz_lna = (val >> 6) & 0x1;
|
|
sc->ext_2ghz_lna = (val >> 4) & 0x1;
|
|
|
|
DPRINTF(("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n",
|
|
sc->ext_2ghz_lna, sc->ext_5ghz_lna));
|
|
|
|
rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2);
|
|
val = le16toh(val);
|
|
if ((val & 0xff) != 0xff)
|
|
sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */
|
|
|
|
/* Only [-10, 10] is valid */
|
|
if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10)
|
|
sc->rssi_2ghz_corr = 0;
|
|
|
|
rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2);
|
|
val = le16toh(val);
|
|
if ((val & 0xff) != 0xff)
|
|
sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */
|
|
|
|
/* Only [-10, 10] is valid */
|
|
if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10)
|
|
sc->rssi_5ghz_corr = 0;
|
|
|
|
if (sc->ext_2ghz_lna)
|
|
sc->rssi_2ghz_corr -= 14;
|
|
if (sc->ext_5ghz_lna)
|
|
sc->rssi_5ghz_corr -= 14;
|
|
|
|
DPRINTF(("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n",
|
|
sc->rssi_2ghz_corr, sc->rssi_5ghz_corr));
|
|
|
|
rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2);
|
|
val = le16toh(val);
|
|
if ((val & 0xff) != 0xff)
|
|
sc->rffreq = val & 0xff;
|
|
|
|
DPRINTF(("RF freq=%d\n", sc->rffreq));
|
|
|
|
/* read Tx power for all a/b/g channels */
|
|
rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14);
|
|
/* XXX default Tx power for 802.11a channels */
|
|
memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14);
|
|
#ifdef RUM_DEBUG
|
|
for (i = 0; i < 14; i++)
|
|
DPRINTF(("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]));
|
|
#endif
|
|
|
|
/* read default values for BBP registers */
|
|
rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16);
|
|
#ifdef RUM_DEBUG
|
|
for (i = 0; i < 14; i++) {
|
|
if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff)
|
|
continue;
|
|
DPRINTF(("BBP R%d=%02x\n", sc->bbp_prom[i].reg,
|
|
sc->bbp_prom[i].val));
|
|
}
|
|
#endif
|
|
}
|
|
|
|
static int
|
|
rum_bbp_init(struct rum_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++) {
|
|
const uint8_t val = rum_bbp_read(sc, 0);
|
|
if (val != 0 && val != 0xff)
|
|
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(rum_def_bbp); i++)
|
|
rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val);
|
|
|
|
/* write vendor-specific BBP values (from EEPROM) */
|
|
for (i = 0; i < 16; i++) {
|
|
if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff)
|
|
continue;
|
|
rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val);
|
|
}
|
|
|
|
return 0;
|
|
#undef N
|
|
}
|
|
|
|
static void
|
|
rum_init(void *priv)
|
|
{
|
|
#define N(a) (sizeof (a) / sizeof ((a)[0]))
|
|
struct rum_softc *sc = priv;
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct ifnet *ifp = ic->ic_ifp;
|
|
struct rum_rx_data *data;
|
|
uint32_t tmp;
|
|
usbd_status error;
|
|
int i, ntries;
|
|
|
|
rum_stop(sc);
|
|
|
|
/* initialize MAC registers to default values */
|
|
for (i = 0; i < N(rum_def_mac); i++)
|
|
rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val);
|
|
|
|
/* set host ready */
|
|
rum_write(sc, RT2573_MAC_CSR1, 3);
|
|
rum_write(sc, RT2573_MAC_CSR1, 0);
|
|
|
|
/* wait for BBP/RF to wakeup */
|
|
for (ntries = 0; ntries < 1000; ntries++) {
|
|
if (rum_read(sc, RT2573_MAC_CSR12) & 8)
|
|
break;
|
|
rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */
|
|
DELAY(1000);
|
|
}
|
|
if (ntries == 1000) {
|
|
printf("%s: timeout waiting for BBP/RF to wakeup\n",
|
|
device_get_nameunit(sc->sc_dev));
|
|
goto fail;
|
|
}
|
|
|
|
if ((error = rum_bbp_init(sc)) != 0)
|
|
goto fail;
|
|
|
|
/* select default channel */
|
|
rum_select_band(sc, ic->ic_curchan);
|
|
rum_select_antenna(sc);
|
|
rum_set_chan(sc, ic->ic_curchan);
|
|
|
|
/* clear STA registers */
|
|
rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta);
|
|
|
|
IEEE80211_ADDR_COPY(ic->ic_myaddr, IF_LLADDR(ifp));
|
|
rum_set_macaddr(sc, ic->ic_myaddr);
|
|
|
|
/* initialize ASIC */
|
|
rum_write(sc, RT2573_MAC_CSR1, 4);
|
|
|
|
/*
|
|
* 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 = rum_alloc_tx_list(sc);
|
|
if (error != 0) {
|
|
printf("%s: could not allocate Tx list\n",
|
|
device_get_nameunit(sc->sc_dev));
|
|
goto fail;
|
|
}
|
|
error = rum_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 < RUM_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, rum_rxeof);
|
|
usbd_transfer(data->xfer);
|
|
}
|
|
|
|
/* update Rx filter */
|
|
tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff;
|
|
|
|
tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR;
|
|
if (ic->ic_opmode != IEEE80211_M_MONITOR) {
|
|
tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR |
|
|
RT2573_DROP_ACKCTS;
|
|
if (ic->ic_opmode != IEEE80211_M_HOSTAP)
|
|
tmp |= RT2573_DROP_TODS;
|
|
if (!(ifp->if_flags & IFF_PROMISC))
|
|
tmp |= RT2573_DROP_NOT_TO_ME;
|
|
}
|
|
rum_write(sc, RT2573_TXRX_CSR0, 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: rum_stop(sc);
|
|
#undef N
|
|
}
|
|
|
|
static void
|
|
rum_stop(void *priv)
|
|
{
|
|
struct rum_softc *sc = priv;
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct ifnet *ifp = ic->ic_ifp;
|
|
uint32_t tmp;
|
|
|
|
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 */
|
|
tmp = rum_read(sc, RT2573_TXRX_CSR0);
|
|
rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX);
|
|
|
|
/* reset ASIC */
|
|
rum_write(sc, RT2573_MAC_CSR1, 3);
|
|
rum_write(sc, RT2573_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;
|
|
}
|
|
|
|
rum_free_rx_list(sc);
|
|
rum_free_tx_list(sc);
|
|
}
|
|
|
|
static int
|
|
rum_load_microcode(struct rum_softc *sc, const u_char *ucode, size_t size)
|
|
{
|
|
usb_device_request_t req;
|
|
uint16_t reg = RT2573_MCU_CODE_BASE;
|
|
usbd_status error;
|
|
|
|
/* copy firmware image into NIC */
|
|
for (; size >= 4; reg += 4, ucode += 4, size -= 4)
|
|
rum_write(sc, reg, UGETDW(ucode));
|
|
|
|
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
|
|
req.bRequest = RT2573_MCU_CNTL;
|
|
USETW(req.wValue, RT2573_MCU_RUN);
|
|
USETW(req.wIndex, 0);
|
|
USETW(req.wLength, 0);
|
|
|
|
error = usbd_do_request(sc->sc_udev, &req, NULL);
|
|
if (error != 0) {
|
|
printf("%s: could not run firmware: %s\n",
|
|
device_get_nameunit(sc->sc_dev), usbd_errstr(error));
|
|
}
|
|
return error;
|
|
}
|
|
|
|
static int
|
|
rum_prepare_beacon(struct rum_softc *sc)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct rum_tx_desc desc;
|
|
struct mbuf *m0;
|
|
int rate;
|
|
|
|
m0 = ieee80211_beacon_alloc(ic->ic_bss, &sc->sc_bo);
|
|
if (m0 == NULL) {
|
|
return ENOBUFS;
|
|
}
|
|
|
|
/* send beacons at the lowest available rate */
|
|
rate = IEEE80211_IS_CHAN_5GHZ(ic->ic_curchan) ? 12 : 2;
|
|
|
|
rum_setup_tx_desc(sc, &desc, RT2573_TX_TIMESTAMP, RT2573_TX_HWSEQ,
|
|
m0->m_pkthdr.len, rate);
|
|
|
|
/* copy the first 24 bytes of Tx descriptor into NIC memory */
|
|
rum_write_multi(sc, RT2573_HW_BEACON_BASE0, (uint8_t *)&desc, 24);
|
|
|
|
/* copy beacon header and payload into NIC memory */
|
|
rum_write_multi(sc, RT2573_HW_BEACON_BASE0 + 24, mtod(m0, uint8_t *),
|
|
m0->m_pkthdr.len);
|
|
|
|
m_freem(m0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
rum_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 rum_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 >= RUM_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 (rum_tx_mgt(sc, m, ni) != 0)
|
|
goto bad;
|
|
} else {
|
|
/*
|
|
* Caller supplied explicit parameters to use in
|
|
* sending the frame.
|
|
*/
|
|
if (rum_tx_raw(sc, m, ni, params) != 0)
|
|
goto bad;
|
|
}
|
|
sc->sc_tx_timer = 5;
|
|
callout_reset(&sc->watchdog_ch, hz, rum_watchdog, sc);
|
|
|
|
return 0;
|
|
bad:
|
|
ifp->if_oerrors++;
|
|
ieee80211_free_node(ni);
|
|
return EIO;
|
|
}
|
|
|
|
static void
|
|
rum_amrr_start(struct rum_softc *sc, struct ieee80211_node *ni)
|
|
{
|
|
int i;
|
|
|
|
/* clear statistic registers (STA_CSR0 to STA_CSR5) */
|
|
rum_read_multi(sc, RT2573_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, rum_amrr_timeout, sc);
|
|
}
|
|
|
|
static void
|
|
rum_amrr_timeout(void *arg)
|
|
{
|
|
struct rum_softc *sc = (struct rum_softc *)arg;
|
|
usb_device_request_t req;
|
|
|
|
/*
|
|
* Asynchronously read statistic registers (cleared by read).
|
|
*/
|
|
req.bmRequestType = UT_READ_VENDOR_DEVICE;
|
|
req.bRequest = RT2573_READ_MULTI_MAC;
|
|
USETW(req.wValue, 0);
|
|
USETW(req.wIndex, RT2573_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,
|
|
rum_amrr_update);
|
|
(void)usbd_transfer(sc->amrr_xfer);
|
|
}
|
|
|
|
static void
|
|
rum_amrr_update(usbd_xfer_handle xfer, usbd_private_handle priv,
|
|
usbd_status status)
|
|
{
|
|
struct rum_softc *sc = (struct rum_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 += le32toh(sc->sta[5]) >> 16;
|
|
|
|
sc->amn.amn_retrycnt =
|
|
(le32toh(sc->sta[4]) >> 16) + /* TX one-retry ok count */
|
|
(le32toh(sc->sta[5]) & 0xffff) + /* TX more-retry ok count */
|
|
(le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */
|
|
|
|
sc->amn.amn_txcnt =
|
|
sc->amn.amn_retrycnt +
|
|
(le32toh(sc->sta[4]) & 0xffff); /* TX no-retry ok count */
|
|
|
|
ieee80211_amrr_choose(&sc->amrr, sc->sc_ic.ic_bss, &sc->amn);
|
|
|
|
callout_reset(&sc->amrr_ch, hz, rum_amrr_timeout, sc);
|
|
}
|
|
|
|
static void
|
|
rum_scan_start(struct ieee80211com *ic)
|
|
{
|
|
struct rum_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 = RUM_SCAN_START;
|
|
usb_add_task(sc->sc_udev, &sc->sc_scantask, USB_TASKQ_DRIVER);
|
|
}
|
|
|
|
static void
|
|
rum_scan_end(struct ieee80211com *ic)
|
|
{
|
|
struct rum_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 = RUM_SCAN_END;
|
|
usb_add_task(sc->sc_udev, &sc->sc_scantask, USB_TASKQ_DRIVER);
|
|
}
|
|
|
|
static void
|
|
rum_set_channel(struct ieee80211com *ic)
|
|
{
|
|
struct rum_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 = RUM_SET_CHANNEL;
|
|
usb_add_task(sc->sc_udev, &sc->sc_scantask, USB_TASKQ_DRIVER);
|
|
}
|
|
|
|
static void
|
|
rum_scantask(void *arg)
|
|
{
|
|
struct rum_softc *sc = arg;
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct ifnet *ifp = ic->ic_ifp;
|
|
uint32_t tmp;
|
|
|
|
RUM_LOCK(sc);
|
|
|
|
switch (sc->sc_scan_action) {
|
|
case RUM_SCAN_START:
|
|
/* abort TSF synchronization */
|
|
tmp = rum_read(sc, RT2573_TXRX_CSR9);
|
|
rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff);
|
|
rum_set_bssid(sc, ifp->if_broadcastaddr);
|
|
break;
|
|
|
|
case RUM_SCAN_END:
|
|
rum_enable_tsf_sync(sc);
|
|
/* XXX keep local copy */
|
|
rum_set_bssid(sc, ic->ic_bss->ni_bssid);
|
|
break;
|
|
|
|
case RUM_SET_CHANNEL:
|
|
mtx_lock(&Giant);
|
|
rum_set_chan(sc, ic->ic_curchan);
|
|
mtx_unlock(&Giant);
|
|
break;
|
|
|
|
default:
|
|
panic("unknown scan action %d\n", sc->sc_scan_action);
|
|
/* NEVER REACHED */
|
|
break;
|
|
}
|
|
|
|
RUM_UNLOCK(sc);
|
|
}
|
|
|
|
static int
|
|
rum_get_rssi(struct rum_softc *sc, uint8_t raw)
|
|
{
|
|
int lna, agc, rssi;
|
|
|
|
lna = (raw >> 5) & 0x3;
|
|
agc = raw & 0x1f;
|
|
|
|
if (lna == 0) {
|
|
/*
|
|
* No RSSI mapping
|
|
*
|
|
* NB: Since RSSI is relative to noise floor, -1 is
|
|
* adequate for caller to know error happened.
|
|
*/
|
|
return -1;
|
|
}
|
|
|
|
rssi = (2 * agc) - RT2573_NOISE_FLOOR;
|
|
|
|
if (IEEE80211_IS_CHAN_2GHZ(sc->sc_ic.ic_curchan)) {
|
|
rssi += sc->rssi_2ghz_corr;
|
|
|
|
if (lna == 1)
|
|
rssi -= 64;
|
|
else if (lna == 2)
|
|
rssi -= 74;
|
|
else if (lna == 3)
|
|
rssi -= 90;
|
|
} else {
|
|
rssi += sc->rssi_5ghz_corr;
|
|
|
|
if (!sc->ext_5ghz_lna && lna != 1)
|
|
rssi += 4;
|
|
|
|
if (lna == 1)
|
|
rssi -= 64;
|
|
else if (lna == 2)
|
|
rssi -= 86;
|
|
else if (lna == 3)
|
|
rssi -= 100;
|
|
}
|
|
return rssi;
|
|
}
|
|
|
|
static device_method_t rum_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, rum_match),
|
|
DEVMETHOD(device_attach, rum_attach),
|
|
DEVMETHOD(device_detach, rum_detach),
|
|
|
|
{ 0, 0 }
|
|
};
|
|
|
|
static driver_t rum_driver = {
|
|
"rum",
|
|
rum_methods,
|
|
sizeof(struct rum_softc)
|
|
};
|
|
|
|
static devclass_t rum_devclass;
|
|
|
|
DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, usbd_driver_load, 0);
|