summaryrefslogtreecommitdiffstats
path: root/sys/legacy/dev/usb/if_rum.c
diff options
context:
space:
mode:
Diffstat (limited to 'sys/legacy/dev/usb/if_rum.c')
-rw-r--r--sys/legacy/dev/usb/if_rum.c2560
1 files changed, 2560 insertions, 0 deletions
diff --git a/sys/legacy/dev/usb/if_rum.c b/sys/legacy/dev/usb/if_rum.c
new file mode 100644
index 0000000..c0c7cb6
--- /dev/null
+++ b/sys/legacy/dev/usb/if_rum.c
@@ -0,0 +1,2560 @@
+/* $FreeBSD$ */
+
+/*-
+ * Copyright (c) 2005-2007 Damien Bergamini <damien.bergamini@free.fr>
+ * Copyright (c) 2006 Niall O'Higgins <niallo@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+/*-
+ * Ralink Technology RT2501USB/RT2601USB chipset driver
+ * http://www.ralinktech.com.tw/
+ */
+
+#include <sys/param.h>
+#include <sys/sysctl.h>
+#include <sys/sockio.h>
+#include <sys/mbuf.h>
+#include <sys/kernel.h>
+#include <sys/socket.h>
+#include <sys/systm.h>
+#include <sys/malloc.h>
+#include <sys/module.h>
+#include <sys/bus.h>
+#include <sys/endian.h>
+
+#include <machine/bus.h>
+#include <machine/resource.h>
+#include <sys/rman.h>
+
+#include <net/bpf.h>
+#include <net/if.h>
+#include <net/if_arp.h>
+#include <net/ethernet.h>
+#include <net/if_dl.h>
+#include <net/if_media.h>
+#include <net/if_types.h>
+
+#include <net80211/ieee80211_var.h>
+#include <net80211/ieee80211_amrr.h>
+#include <net80211/ieee80211_phy.h>
+#include <net80211/ieee80211_radiotap.h>
+#include <net80211/ieee80211_regdomain.h>
+
+#include <dev/usb/usb.h>
+#include <dev/usb/usbdi.h>
+#include <dev/usb/usbdi_util.h>
+#include "usbdevs.h"
+
+#include <dev/usb/if_rumreg.h>
+#include <dev/usb/if_rumvar.h>
+#include <dev/usb/rt2573_ucode.h>
+
+#ifdef USB_DEBUG
+#define DPRINTF(x) do { if (rumdebug > 0) printf x; } while (0)
+#define DPRINTFN(n, x) do { if (rumdebug >= (n)) printf x; } while (0)
+int rumdebug = 0;
+SYSCTL_NODE(_hw_usb, OID_AUTO, rum, CTLFLAG_RW, 0, "USB rum");
+SYSCTL_INT(_hw_usb_rum, OID_AUTO, debug, CTLFLAG_RW, &rumdebug, 0,
+ "rum debug level");
+#else
+#define DPRINTF(x)
+#define DPRINTFN(n, x)
+#endif
+
+/* various supported device vendors/products */
+static const struct usb_devno rum_devs[] = {
+ { USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_HWU54DM },
+ { USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_RT2573_2 },
+ { USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_RT2573_3 },
+ { USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_RT2573_4 },
+ { USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_WUG2700 },
+ { USB_VENDOR_AMIT, USB_PRODUCT_AMIT_CGWLUSB2GO },
+ { USB_VENDOR_ASUS, USB_PRODUCT_ASUS_RT2573_1 },
+ { USB_VENDOR_ASUS, USB_PRODUCT_ASUS_RT2573_2 },
+ { USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5D7050A },
+ { USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5D9050V3 },
+ { USB_VENDOR_CISCOLINKSYS, USB_PRODUCT_CISCOLINKSYS_WUSB54GC },
+ { USB_VENDOR_CISCOLINKSYS, USB_PRODUCT_CISCOLINKSYS_WUSB54GR },
+ { USB_VENDOR_CONCEPTRONIC2, USB_PRODUCT_CONCEPTRONIC2_C54RU2 },
+ { USB_VENDOR_COREGA, USB_PRODUCT_COREGA_CGWLUSB2GL },
+ { USB_VENDOR_COREGA, USB_PRODUCT_COREGA_CGWLUSB2GPX },
+ { USB_VENDOR_DICKSMITH, USB_PRODUCT_DICKSMITH_CWD854F },
+ { USB_VENDOR_DICKSMITH, USB_PRODUCT_DICKSMITH_RT2573 },
+ { USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_DWLG122C1 },
+ { USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_WUA1340 },
+ { USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_DWA111 },
+ { USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_DWA110 },
+ { USB_VENDOR_GIGABYTE, USB_PRODUCT_GIGABYTE_GNWB01GS },
+ { USB_VENDOR_GIGABYTE, USB_PRODUCT_GIGABYTE_GNWI05GS },
+ { USB_VENDOR_GIGASET, USB_PRODUCT_GIGASET_RT2573 },
+ { USB_VENDOR_GOODWAY, USB_PRODUCT_GOODWAY_RT2573 },
+ { USB_VENDOR_GUILLEMOT, USB_PRODUCT_GUILLEMOT_HWGUSB254LB },
+ { USB_VENDOR_GUILLEMOT, USB_PRODUCT_GUILLEMOT_HWGUSB254V2AP },
+ { USB_VENDOR_HUAWEI3COM, USB_PRODUCT_HUAWEI3COM_WUB320G },
+ { USB_VENDOR_MELCO, USB_PRODUCT_MELCO_G54HP },
+ { USB_VENDOR_MELCO, USB_PRODUCT_MELCO_SG54HP },
+ { USB_VENDOR_MELCO, USB_PRODUCT_MELCO_SG54HG },
+ { USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_1 },
+ { USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_2 },
+ { USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_3 },
+ { USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_4 },
+ { USB_VENDOR_NOVATECH, USB_PRODUCT_NOVATECH_RT2573 },
+ { USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_GWUS54HP },
+ { USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_GWUS54MINI2 },
+ { USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_GWUSMM },
+ { USB_VENDOR_QCOM, USB_PRODUCT_QCOM_RT2573 },
+ { USB_VENDOR_QCOM, USB_PRODUCT_QCOM_RT2573_2 },
+ { USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2573 },
+ { USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2573_2 },
+ { USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2671 },
+ { USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_WL113R2 },
+ { USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_WL172 },
+ { USB_VENDOR_SPARKLAN, USB_PRODUCT_SPARKLAN_RT2573 },
+ { USB_VENDOR_SURECOM, USB_PRODUCT_SURECOM_RT2573 }
+};
+
+MODULE_DEPEND(rum, wlan, 1, 1, 1);
+MODULE_DEPEND(rum, wlan_amrr, 1, 1, 1);
+MODULE_DEPEND(rum, usb, 1, 1, 1);
+
+static struct ieee80211vap *rum_vap_create(struct ieee80211com *,
+ const char name[IFNAMSIZ], int unit, int opmode,
+ int flags, const uint8_t bssid[IEEE80211_ADDR_LEN],
+ const uint8_t mac[IEEE80211_ADDR_LEN]);
+static void rum_vap_delete(struct ieee80211vap *);
+static int rum_alloc_tx_list(struct rum_softc *);
+static void rum_free_tx_list(struct rum_softc *);
+static int rum_alloc_rx_list(struct rum_softc *);
+static void rum_free_rx_list(struct rum_softc *);
+static void rum_task(void *);
+static void rum_scantask(void *);
+static int rum_newstate(struct ieee80211vap *,
+ enum ieee80211_state, int);
+static void rum_txeof(usbd_xfer_handle, usbd_private_handle,
+ usbd_status);
+static void rum_rxeof(usbd_xfer_handle, usbd_private_handle,
+ usbd_status);
+static void rum_setup_tx_desc(struct rum_softc *,
+ struct rum_tx_desc *, uint32_t, uint16_t, int,
+ int);
+static int rum_tx_mgt(struct rum_softc *, struct mbuf *,
+ struct ieee80211_node *);
+static int rum_tx_raw(struct rum_softc *, struct mbuf *,
+ struct ieee80211_node *,
+ const struct ieee80211_bpf_params *);
+static int rum_tx_data(struct rum_softc *, struct mbuf *,
+ struct ieee80211_node *);
+static void rum_start(struct ifnet *);
+static void rum_watchdog(void *);
+static int rum_ioctl(struct ifnet *, u_long, caddr_t);
+static void rum_eeprom_read(struct rum_softc *, uint16_t, void *,
+ int);
+static uint32_t rum_read(struct rum_softc *, uint16_t);
+static void rum_read_multi(struct rum_softc *, uint16_t, void *,
+ int);
+static void rum_write(struct rum_softc *, uint16_t, uint32_t);
+static void rum_write_multi(struct rum_softc *, uint16_t, void *,
+ size_t);
+static void rum_bbp_write(struct rum_softc *, uint8_t, uint8_t);
+static uint8_t rum_bbp_read(struct rum_softc *, uint8_t);
+static void rum_rf_write(struct rum_softc *, uint8_t, uint32_t);
+static void rum_select_antenna(struct rum_softc *);
+static void rum_enable_mrr(struct rum_softc *);
+static void rum_set_txpreamble(struct rum_softc *);
+static void rum_set_basicrates(struct rum_softc *);
+static void rum_select_band(struct rum_softc *,
+ struct ieee80211_channel *);
+static void rum_set_chan(struct rum_softc *,
+ struct ieee80211_channel *);
+static void rum_enable_tsf_sync(struct rum_softc *);
+static void rum_update_slot(struct ifnet *);
+static void rum_set_bssid(struct rum_softc *, const uint8_t *);
+static void rum_set_macaddr(struct rum_softc *, const uint8_t *);
+static void rum_update_promisc(struct rum_softc *);
+static const char *rum_get_rf(int);
+static void rum_read_eeprom(struct rum_softc *);
+static int rum_bbp_init(struct rum_softc *);
+static void rum_init_locked(struct rum_softc *);
+static void rum_init(void *);
+static void rum_stop(void *);
+static int rum_load_microcode(struct rum_softc *, const u_char *,
+ size_t);
+static int rum_prepare_beacon(struct rum_softc *,
+ struct ieee80211vap *);
+static int rum_raw_xmit(struct ieee80211_node *, struct mbuf *,
+ const struct ieee80211_bpf_params *);
+static struct ieee80211_node *rum_node_alloc(struct ieee80211vap *,
+ const uint8_t mac[IEEE80211_ADDR_LEN]);
+static void rum_newassoc(struct ieee80211_node *, int);
+static void rum_scan_start(struct ieee80211com *);
+static void rum_scan_end(struct ieee80211com *);
+static void rum_set_channel(struct ieee80211com *);
+static int rum_get_rssi(struct rum_softc *, uint8_t);
+static void rum_amrr_start(struct rum_softc *,
+ struct ieee80211_node *);
+static void rum_amrr_timeout(void *);
+static void rum_amrr_update(usbd_xfer_handle, usbd_private_handle,
+ usbd_status);
+
+static const struct {
+ uint32_t reg;
+ uint32_t val;
+} rum_def_mac[] = {
+ { RT2573_TXRX_CSR0, 0x025fb032 },
+ { RT2573_TXRX_CSR1, 0x9eaa9eaf },
+ { RT2573_TXRX_CSR2, 0x8a8b8c8d },
+ { RT2573_TXRX_CSR3, 0x00858687 },
+ { RT2573_TXRX_CSR7, 0x2e31353b },
+ { RT2573_TXRX_CSR8, 0x2a2a2a2c },
+ { RT2573_TXRX_CSR15, 0x0000000f },
+ { RT2573_MAC_CSR6, 0x00000fff },
+ { RT2573_MAC_CSR8, 0x016c030a },
+ { RT2573_MAC_CSR10, 0x00000718 },
+ { RT2573_MAC_CSR12, 0x00000004 },
+ { RT2573_MAC_CSR13, 0x00007f00 },
+ { RT2573_SEC_CSR0, 0x00000000 },
+ { RT2573_SEC_CSR1, 0x00000000 },
+ { RT2573_SEC_CSR5, 0x00000000 },
+ { RT2573_PHY_CSR1, 0x000023b0 },
+ { RT2573_PHY_CSR5, 0x00040a06 },
+ { RT2573_PHY_CSR6, 0x00080606 },
+ { RT2573_PHY_CSR7, 0x00000408 },
+ { RT2573_AIFSN_CSR, 0x00002273 },
+ { RT2573_CWMIN_CSR, 0x00002344 },
+ { RT2573_CWMAX_CSR, 0x000034aa }
+};
+
+static const struct {
+ uint8_t reg;
+ uint8_t val;
+} rum_def_bbp[] = {
+ { 3, 0x80 },
+ { 15, 0x30 },
+ { 17, 0x20 },
+ { 21, 0xc8 },
+ { 22, 0x38 },
+ { 23, 0x06 },
+ { 24, 0xfe },
+ { 25, 0x0a },
+ { 26, 0x0d },
+ { 32, 0x0b },
+ { 34, 0x12 },
+ { 37, 0x07 },
+ { 39, 0xf8 },
+ { 41, 0x60 },
+ { 53, 0x10 },
+ { 54, 0x18 },
+ { 60, 0x10 },
+ { 61, 0x04 },
+ { 62, 0x04 },
+ { 75, 0xfe },
+ { 86, 0xfe },
+ { 88, 0xfe },
+ { 90, 0x0f },
+ { 99, 0x00 },
+ { 102, 0x16 },
+ { 107, 0x04 }
+};
+
+static const struct rfprog {
+ uint8_t chan;
+ uint32_t r1, r2, r3, r4;
+} rum_rf5226[] = {
+ { 1, 0x00b03, 0x001e1, 0x1a014, 0x30282 },
+ { 2, 0x00b03, 0x001e1, 0x1a014, 0x30287 },
+ { 3, 0x00b03, 0x001e2, 0x1a014, 0x30282 },
+ { 4, 0x00b03, 0x001e2, 0x1a014, 0x30287 },
+ { 5, 0x00b03, 0x001e3, 0x1a014, 0x30282 },
+ { 6, 0x00b03, 0x001e3, 0x1a014, 0x30287 },
+ { 7, 0x00b03, 0x001e4, 0x1a014, 0x30282 },
+ { 8, 0x00b03, 0x001e4, 0x1a014, 0x30287 },
+ { 9, 0x00b03, 0x001e5, 0x1a014, 0x30282 },
+ { 10, 0x00b03, 0x001e5, 0x1a014, 0x30287 },
+ { 11, 0x00b03, 0x001e6, 0x1a014, 0x30282 },
+ { 12, 0x00b03, 0x001e6, 0x1a014, 0x30287 },
+ { 13, 0x00b03, 0x001e7, 0x1a014, 0x30282 },
+ { 14, 0x00b03, 0x001e8, 0x1a014, 0x30284 },
+
+ { 34, 0x00b03, 0x20266, 0x36014, 0x30282 },
+ { 38, 0x00b03, 0x20267, 0x36014, 0x30284 },
+ { 42, 0x00b03, 0x20268, 0x36014, 0x30286 },
+ { 46, 0x00b03, 0x20269, 0x36014, 0x30288 },
+
+ { 36, 0x00b03, 0x00266, 0x26014, 0x30288 },
+ { 40, 0x00b03, 0x00268, 0x26014, 0x30280 },
+ { 44, 0x00b03, 0x00269, 0x26014, 0x30282 },
+ { 48, 0x00b03, 0x0026a, 0x26014, 0x30284 },
+ { 52, 0x00b03, 0x0026b, 0x26014, 0x30286 },
+ { 56, 0x00b03, 0x0026c, 0x26014, 0x30288 },
+ { 60, 0x00b03, 0x0026e, 0x26014, 0x30280 },
+ { 64, 0x00b03, 0x0026f, 0x26014, 0x30282 },
+
+ { 100, 0x00b03, 0x0028a, 0x2e014, 0x30280 },
+ { 104, 0x00b03, 0x0028b, 0x2e014, 0x30282 },
+ { 108, 0x00b03, 0x0028c, 0x2e014, 0x30284 },
+ { 112, 0x00b03, 0x0028d, 0x2e014, 0x30286 },
+ { 116, 0x00b03, 0x0028e, 0x2e014, 0x30288 },
+ { 120, 0x00b03, 0x002a0, 0x2e014, 0x30280 },
+ { 124, 0x00b03, 0x002a1, 0x2e014, 0x30282 },
+ { 128, 0x00b03, 0x002a2, 0x2e014, 0x30284 },
+ { 132, 0x00b03, 0x002a3, 0x2e014, 0x30286 },
+ { 136, 0x00b03, 0x002a4, 0x2e014, 0x30288 },
+ { 140, 0x00b03, 0x002a6, 0x2e014, 0x30280 },
+
+ { 149, 0x00b03, 0x002a8, 0x2e014, 0x30287 },
+ { 153, 0x00b03, 0x002a9, 0x2e014, 0x30289 },
+ { 157, 0x00b03, 0x002ab, 0x2e014, 0x30281 },
+ { 161, 0x00b03, 0x002ac, 0x2e014, 0x30283 },
+ { 165, 0x00b03, 0x002ad, 0x2e014, 0x30285 }
+}, rum_rf5225[] = {
+ { 1, 0x00b33, 0x011e1, 0x1a014, 0x30282 },
+ { 2, 0x00b33, 0x011e1, 0x1a014, 0x30287 },
+ { 3, 0x00b33, 0x011e2, 0x1a014, 0x30282 },
+ { 4, 0x00b33, 0x011e2, 0x1a014, 0x30287 },
+ { 5, 0x00b33, 0x011e3, 0x1a014, 0x30282 },
+ { 6, 0x00b33, 0x011e3, 0x1a014, 0x30287 },
+ { 7, 0x00b33, 0x011e4, 0x1a014, 0x30282 },
+ { 8, 0x00b33, 0x011e4, 0x1a014, 0x30287 },
+ { 9, 0x00b33, 0x011e5, 0x1a014, 0x30282 },
+ { 10, 0x00b33, 0x011e5, 0x1a014, 0x30287 },
+ { 11, 0x00b33, 0x011e6, 0x1a014, 0x30282 },
+ { 12, 0x00b33, 0x011e6, 0x1a014, 0x30287 },
+ { 13, 0x00b33, 0x011e7, 0x1a014, 0x30282 },
+ { 14, 0x00b33, 0x011e8, 0x1a014, 0x30284 },
+
+ { 34, 0x00b33, 0x01266, 0x26014, 0x30282 },
+ { 38, 0x00b33, 0x01267, 0x26014, 0x30284 },
+ { 42, 0x00b33, 0x01268, 0x26014, 0x30286 },
+ { 46, 0x00b33, 0x01269, 0x26014, 0x30288 },
+
+ { 36, 0x00b33, 0x01266, 0x26014, 0x30288 },
+ { 40, 0x00b33, 0x01268, 0x26014, 0x30280 },
+ { 44, 0x00b33, 0x01269, 0x26014, 0x30282 },
+ { 48, 0x00b33, 0x0126a, 0x26014, 0x30284 },
+ { 52, 0x00b33, 0x0126b, 0x26014, 0x30286 },
+ { 56, 0x00b33, 0x0126c, 0x26014, 0x30288 },
+ { 60, 0x00b33, 0x0126e, 0x26014, 0x30280 },
+ { 64, 0x00b33, 0x0126f, 0x26014, 0x30282 },
+
+ { 100, 0x00b33, 0x0128a, 0x2e014, 0x30280 },
+ { 104, 0x00b33, 0x0128b, 0x2e014, 0x30282 },
+ { 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;
+ 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;
+ uint8_t 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) {
+ device_printf(self, "could not set configuration no\n");
+ return ENXIO;
+ }
+
+ /* get the first interface handle */
+ error = usbd_device2interface_handle(sc->sc_udev, RT2573_IFACE_INDEX,
+ &sc->sc_iface);
+ if (error != 0) {
+ device_printf(self, "could not get interface handle\n");
+ return ENXIO;
+ }
+
+ /*
+ * Find endpoints.
+ */
+ id = usbd_get_interface_descriptor(sc->sc_iface);
+
+ sc->sc_rx_no = sc->sc_tx_no = -1;
+ for (i = 0; i < id->bNumEndpoints; i++) {
+ ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i);
+ if (ed == NULL) {
+ device_printf(self,
+ "no endpoint descriptor for iface %d\n", 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) {
+ device_printf(self, "missing endpoint\n");
+ return ENXIO;
+ }
+
+ ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211);
+ if (ifp == NULL) {
+ device_printf(self, "can not if_alloc()\n");
+ return ENXIO;
+ }
+ ic = ifp->if_l2com;
+
+ 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);
+
+ /* 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) {
+ device_printf(self, "timeout waiting for chip to settle\n");
+ goto bad;
+ }
+
+ /* retrieve MAC address and various other things from EEPROM */
+ rum_read_eeprom(sc);
+
+ device_printf(self, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n",
+ 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(self, "could not load 8051 microcode\n");
+ goto bad;
+ }
+
+ 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 */
+
+ /* set device capabilities */
+ ic->ic_caps =
+ IEEE80211_C_STA /* station mode supported */
+ | 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 == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226)
+ setbit(&bands, IEEE80211_MODE_11A);
+ ieee80211_init_channels(ic, NULL, &bands);
+
+ ieee80211_ifattach(ic);
+ ic->ic_newassoc = rum_newassoc;
+ ic->ic_raw_xmit = rum_raw_xmit;
+ ic->ic_node_alloc = rum_node_alloc;
+ ic->ic_scan_start = rum_scan_start;
+ ic->ic_scan_end = rum_scan_end;
+ ic->ic_set_channel = rum_set_channel;
+
+ ic->ic_vap_create = rum_vap_create;
+ ic->ic_vap_delete = rum_vap_delete;
+
+ sc->sc_rates = ieee80211_get_ratetable(ic->ic_curchan);
+
+ bpfattach(ifp, DLT_IEEE802_11_RADIO,
+ sizeof (struct ieee80211_frame) + sizeof(sc->sc_txtap));
+
+ sc->sc_rxtap_len = sizeof sc->sc_rxtap;
+ sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len);
+ sc->sc_rxtap.wr_ihdr.it_present = htole32(RT2573_RX_RADIOTAP_PRESENT);
+
+ sc->sc_txtap_len = sizeof sc->sc_txtap;
+ sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len);
+ sc->sc_txtap.wt_ihdr.it_present = htole32(RT2573_TX_RADIOTAP_PRESENT);
+
+ if (bootverbose)
+ ieee80211_announce(ic);
+
+ return 0;
+bad:
+ mtx_destroy(&sc->sc_mtx);
+ if_free(ifp);
+ return ENXIO;
+}
+
+static int
+rum_detach(device_t self)
+{
+ struct rum_softc *sc = device_get_softc(self);
+ struct ifnet *ifp = sc->sc_ifp;
+ struct ieee80211com *ic = ifp->if_l2com;
+
+ rum_stop(sc);
+ bpfdetach(ifp);
+ ieee80211_ifdetach(ic);
+
+ usb_rem_task(sc->sc_udev, &sc->sc_task);
+ usb_rem_task(sc->sc_udev, &sc->sc_scantask);
+ callout_stop(&sc->watchdog_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);
+
+ if_free(ifp);
+ mtx_destroy(&sc->sc_mtx);
+
+ return 0;
+}
+
+static struct ieee80211vap *
+rum_vap_create(struct ieee80211com *ic,
+ const char name[IFNAMSIZ], int unit, int opmode, int flags,
+ const uint8_t bssid[IEEE80211_ADDR_LEN],
+ const uint8_t mac[IEEE80211_ADDR_LEN])
+{
+ struct rum_vap *rvp;
+ struct ieee80211vap *vap;
+
+ if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */
+ return NULL;
+ rvp = (struct rum_vap *) malloc(sizeof(struct rum_vap),
+ M_80211_VAP, M_NOWAIT | M_ZERO);
+ if (rvp == NULL)
+ return NULL;
+ vap = &rvp->vap;
+ /* enable s/w bmiss handling for sta mode */
+ ieee80211_vap_setup(ic, vap, name, unit, opmode,
+ flags | IEEE80211_CLONE_NOBEACONS, bssid, mac);
+
+ /* override state transition machine */
+ rvp->newstate = vap->iv_newstate;
+ vap->iv_newstate = rum_newstate;
+
+ callout_init(&rvp->amrr_ch, 0);
+ ieee80211_amrr_init(&rvp->amrr, vap,
+ IEEE80211_AMRR_MIN_SUCCESS_THRESHOLD,
+ IEEE80211_AMRR_MAX_SUCCESS_THRESHOLD,
+ 1000 /* 1 sec */);
+
+ /* complete setup */
+ ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status);
+ ic->ic_opmode = opmode;
+ return vap;
+}
+
+static void
+rum_vap_delete(struct ieee80211vap *vap)
+{
+ struct rum_vap *rvp = RUM_VAP(vap);
+
+ callout_stop(&rvp->amrr_ch);
+ ieee80211_amrr_cleanup(&rvp->amrr);
+ ieee80211_vap_detach(vap);
+ free(rvp, M_80211_VAP);
+}
+
+static int
+rum_alloc_tx_list(struct rum_softc *sc)
+{
+ struct rum_tx_data *data;
+ int i, error;
+
+ sc->tx_queued = sc->tx_cur = 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) {
+ device_printf(sc->sc_dev,
+ "could not allocate tx xfer\n");
+ error = ENOMEM;
+ goto fail;
+ }
+ data->buf = usbd_alloc_buffer(data->xfer,
+ RT2573_TX_DESC_SIZE + MCLBYTES);
+ if (data->buf == NULL) {
+ device_printf(sc->sc_dev,
+ "could not allocate tx buffer\n");
+ 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) {
+ device_printf(sc->sc_dev,
+ "could not allocate rx xfer\n");
+ error = ENOMEM;
+ goto fail;
+ }
+ if (usbd_alloc_buffer(data->xfer, MCLBYTES) == NULL) {
+ device_printf(sc->sc_dev,
+ "could not allocate rx buffer\n");
+ error = ENOMEM;
+ goto fail;
+ }
+
+ data->m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR);
+ if (data->m == NULL) {
+ device_printf(sc->sc_dev,
+ "could not allocate rx mbuf\n");
+ error = ENOMEM;
+ goto fail;
+ }
+
+ data->buf = mtod(data->m, uint8_t *);
+ }
+
+ return 0;
+
+fail: rum_free_rx_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 void
+rum_task(void *arg)
+{
+ struct rum_softc *sc = arg;
+ struct ifnet *ifp = sc->sc_ifp;
+ struct ieee80211com *ic = ifp->if_l2com;
+ struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
+ struct rum_vap *rvp = RUM_VAP(vap);
+ const struct ieee80211_txparam *tp;
+ enum ieee80211_state ostate;
+ struct ieee80211_node *ni;
+ uint32_t tmp;
+
+ ostate = vap->iv_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 = vap->iv_bss;
+
+ if (vap->iv_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 (vap->iv_opmode == IEEE80211_M_HOSTAP ||
+ vap->iv_opmode == IEEE80211_M_IBSS)
+ rum_prepare_beacon(sc, vap);
+
+ if (vap->iv_opmode != IEEE80211_M_MONITOR)
+ rum_enable_tsf_sync(sc);
+
+ /* enable automatic rate adaptation */
+ tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)];
+ if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE)
+ rum_amrr_start(sc, ni);
+ break;
+ default:
+ break;
+ }
+
+ RUM_UNLOCK(sc);
+
+ IEEE80211_LOCK(ic);
+ rvp->newstate(vap, sc->sc_state, sc->sc_arg);
+ if (vap->iv_newstate_cb != NULL)
+ vap->iv_newstate_cb(vap, sc->sc_state, sc->sc_arg);
+ IEEE80211_UNLOCK(ic);
+}
+
+static int
+rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
+{
+ struct rum_vap *rvp = RUM_VAP(vap);
+ struct ieee80211com *ic = vap->iv_ic;
+ struct rum_softc *sc = ic->ic_ifp->if_softc;
+
+ usb_rem_task(sc->sc_udev, &sc->sc_task);
+ usb_rem_task(sc->sc_udev, &sc->sc_scantask);
+ callout_stop(&rvp->amrr_ch);
+
+ /* do it in a process context */
+ sc->sc_state = nstate;
+ sc->sc_arg = arg;
+
+ if (nstate == IEEE80211_S_INIT) {
+ rvp->newstate(vap, nstate, arg);
+ return 0;
+ } else {
+ usb_add_task(sc->sc_udev, &sc->sc_task, USB_TASKQ_DRIVER);
+ return EINPROGRESS;
+ }
+}
+
+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_ifp;
+
+ if (data->m != NULL && data->m->m_flags & M_TXCB)
+ ieee80211_process_callback(data->ni, data->m, 0/*XXX*/);
+
+ if (status != USBD_NORMAL_COMPLETION) {
+ if (status == USBD_NOT_STARTED || status == USBD_CANCELLED)
+ return;
+
+ device_printf(sc->sc_dev, "could not transmit buffer: %s\n",
+ 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 ifnet *ifp = sc->sc_ifp;
+ struct ieee80211com *ic = ifp->if_l2com;
+ struct rum_rx_desc *desc;
+ 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);
+
+ if (bpf_peers_present(ifp->if_bpf)) {
+ struct rum_rx_radiotap_header *tap = &sc->sc_rxtap;
+
+ tap->wr_flags = IEEE80211_RADIOTAP_F_FCS;
+ tap->wr_rate = ieee80211_plcp2rate(desc->rate,
+ (desc->flags & htole32(RT2573_RX_OFDM)) ?
+ IEEE80211_T_OFDM : IEEE80211_T_CCK);
+ 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(ifp->if_bpf, tap, sc->sc_rxtap_len, m);
+ }
+
+ ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *));
+ if (ni != NULL) {
+ /* Error happened during RSSI conversion. */
+ if (rssi < 0)
+ rssi = -30; /* XXX ignored by net80211 */
+ (void) ieee80211_input(ni, m, rssi, RT2573_NOISE_FLOOR, 0);
+ ieee80211_free_node(ni);
+ } else
+ (void) ieee80211_input_all(ic, m, rssi, RT2573_NOISE_FLOOR, 0);
+
+ 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);
+}
+
+static uint8_t
+rum_plcp_signal(int rate)
+{
+ switch (rate) {
+ /* 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;
+
+ /* CCK rates (NB: not IEEE std, device-specific) */
+ case 2: return 0x0;
+ case 4: return 0x1;
+ case 11: return 0x2;
+ case 22: return 0x3;
+ }
+ return 0xff; /* XXX unsupported/unknown rate */
+}
+
+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 ifnet *ifp = sc->sc_ifp;
+ struct ieee80211com *ic = ifp->if_l2com;
+ 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 (ieee80211_rate2phytype(sc->sc_rates, rate) == IEEE80211_T_OFDM) {
+ 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_sendprot(struct rum_softc *sc,
+ const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate)
+{
+ struct ieee80211com *ic = ni->ni_ic;
+ const struct ieee80211_frame *wh;
+ struct rum_tx_desc *desc;
+ struct rum_tx_data *data;
+ struct mbuf *mprot;
+ int protrate, ackrate, pktlen, flags, isshort;
+ uint16_t dur;
+ usbd_status error;
+
+ KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY,
+ ("protection %d", prot));
+
+ wh = mtod(m, const struct ieee80211_frame *);
+ pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN;
+
+ protrate = ieee80211_ctl_rate(sc->sc_rates, rate);
+ ackrate = ieee80211_ack_rate(sc->sc_rates, rate);
+
+ isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0;
+ dur = ieee80211_compute_duration(sc->sc_rates, pktlen, rate, isshort);
+ + ieee80211_ack_duration(sc->sc_rates, rate, isshort);
+ flags = RT2573_TX_MORE_FRAG;
+ if (prot == IEEE80211_PROT_RTSCTS) {
+ /* NB: CTS is the same size as an ACK */
+ dur += ieee80211_ack_duration(sc->sc_rates, rate, isshort);
+ flags |= RT2573_TX_NEED_ACK;
+ mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur);
+ } else {
+ mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur);
+ }
+ if (mprot == NULL) {
+ /* XXX stat + msg */
+ return ENOBUFS;
+ }
+ data = &sc->tx_data[sc->tx_cur];
+ desc = (struct rum_tx_desc *)data->buf;
+
+ data->m = mprot;
+ data->ni = ieee80211_ref_node(ni);
+ m_copydata(mprot, 0, mprot->m_pkthdr.len,
+ data->buf + RT2573_TX_DESC_SIZE);
+ rum_setup_tx_desc(sc, desc, flags, 0, mprot->m_pkthdr.len, protrate);
+
+ usbd_setup_xfer(data->xfer, sc->sc_tx_pipeh, data, data->buf,
+ /* NB: no roundup necessary */
+ RT2573_TX_DESC_SIZE + mprot->m_pkthdr.len,
+ 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) {
+ data->m = NULL;
+ data->ni = NULL;
+ return error;
+ }
+
+ sc->tx_queued++;
+ sc->tx_cur = (sc->tx_cur + 1) % RUM_TX_LIST_COUNT;
+
+ return 0;
+}
+
+static int
+rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
+{
+ struct ieee80211vap *vap = ni->ni_vap;
+ struct ifnet *ifp = sc->sc_ifp;
+ struct ieee80211com *ic = ifp->if_l2com;
+ struct rum_tx_desc *desc;
+ struct rum_tx_data *data;
+ struct ieee80211_frame *wh;
+ const struct ieee80211_txparam *tp;
+ struct ieee80211_key *k;
+ uint32_t flags = 0;
+ uint16_t dur;
+ usbd_status error;
+ int xferlen;
+
+ data = &sc->tx_data[sc->tx_cur];
+ data->m = m0;
+ data->ni = ni;
+ desc = (struct rum_tx_desc *)data->buf;
+
+ wh = mtod(m0, struct ieee80211_frame *);
+ if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
+ k = ieee80211_crypto_encap(ni, m0);
+ if (k == NULL) {
+ m_freem(m0);
+ return ENOBUFS;
+ }
+ wh = mtod(m0, struct ieee80211_frame *);
+ }
+
+ tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)];
+
+ if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
+ flags |= RT2573_TX_NEED_ACK;
+
+ dur = ieee80211_ack_duration(sc->sc_rates, tp->mgmtrate,
+ ic->ic_flags & IEEE80211_F_SHPREAMBLE);
+ *(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(ifp->if_bpf)) {
+ struct rum_tx_radiotap_header *tap = &sc->sc_txtap;
+
+ tap->wt_flags = 0;
+ tap->wt_rate = tp->mgmtrate;
+ 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(ifp->if_bpf, 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, tp->mgmtrate);
+
+ /* 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, tp->mgmtrate, 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++;
+ sc->tx_cur = (sc->tx_cur + 1) % RUM_TX_LIST_COUNT;
+
+ 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 ifnet *ifp = sc->sc_ifp;
+ struct ieee80211com *ic = ifp->if_l2com;
+ struct rum_tx_desc *desc;
+ struct rum_tx_data *data;
+ uint32_t flags;
+ usbd_status error;
+ int xferlen, rate;
+
+ KASSERT(params != NULL, ("no raw xmit params"));
+
+ data = &sc->tx_data[sc->tx_cur];
+ desc = (struct rum_tx_desc *)data->buf;
+
+ rate = params->ibp_rate0 & IEEE80211_RATE_VAL;
+ /* XXX validate */
+ if (rate == 0) {
+ m_freem(m0);
+ return EINVAL;
+ }
+ flags = 0;
+ if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0)
+ flags |= RT2573_TX_NEED_ACK;
+ if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) {
+ error = rum_sendprot(sc, m0, ni,
+ params->ibp_flags & IEEE80211_BPF_RTS ?
+ IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY,
+ rate);
+ if (error) {
+ m_freem(m0);
+ return error;
+ }
+ flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS;
+ }
+
+ if (bpf_peers_present(ifp->if_bpf)) {
+ 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(ifp->if_bpf, tap, sc->sc_txtap_len, m0);
+ }
+
+ data->m = m0;
+ data->ni = ni;
+
+ 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++;
+ sc->tx_cur = (sc->tx_cur + 1) % RUM_TX_LIST_COUNT;
+
+ return 0;
+}
+
+static int
+rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
+{
+ struct ieee80211vap *vap = ni->ni_vap;
+ struct ifnet *ifp = sc->sc_ifp;
+ struct ieee80211com *ic = ifp->if_l2com;
+ struct rum_tx_desc *desc;
+ struct rum_tx_data *data;
+ struct ieee80211_frame *wh;
+ const struct ieee80211_txparam *tp;
+ struct ieee80211_key *k;
+ uint32_t flags = 0;
+ uint16_t dur;
+ usbd_status error;
+ int rate, xferlen;
+
+ wh = mtod(m0, struct ieee80211_frame *);
+
+ tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)];
+ if (IEEE80211_IS_MULTICAST(wh->i_addr1))
+ rate = tp->mcastrate;
+ else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE)
+ rate = tp->ucastrate;
+ else {
+ (void) ieee80211_amrr_choose(ni, &RUM_NODE(ni)->amn);
+ rate = ni->ni_txrate;
+ }
+
+ if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
+ k = ieee80211_crypto_encap(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 *);
+ }
+
+ if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
+ int prot = IEEE80211_PROT_NONE;
+ if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold)
+ prot = IEEE80211_PROT_RTSCTS;
+ else if ((ic->ic_flags & IEEE80211_F_USEPROT) &&
+ ieee80211_rate2phytype(sc->sc_rates, rate) == IEEE80211_T_OFDM)
+ prot = ic->ic_protmode;
+ if (prot != IEEE80211_PROT_NONE) {
+ error = rum_sendprot(sc, m0, ni, prot, rate);
+ if (error) {
+ m_freem(m0);
+ return error;
+ }
+ flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS;
+ }
+ }
+
+ data = &sc->tx_data[sc->tx_cur];
+ 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 = ieee80211_ack_duration(sc->sc_rates, rate,
+ ic->ic_flags & IEEE80211_F_SHPREAMBLE);
+ *(uint16_t *)wh->i_dur = htole16(dur);
+ }
+
+ if (bpf_peers_present(ifp->if_bpf)) {
+ 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(ifp->if_bpf, 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++;
+ sc->tx_cur = (sc->tx_cur + 1) % RUM_TX_LIST_COUNT;
+
+ return 0;
+}
+
+static void
+rum_start(struct ifnet *ifp)
+{
+ struct rum_softc *sc = ifp->if_softc;
+ struct ieee80211_node *ni;
+ struct mbuf *m;
+
+ for (;;) {
+ IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
+ if (m == NULL)
+ break;
+ if (sc->tx_queued >= RUM_TX_LIST_COUNT-1) {
+ IFQ_DRV_PREPEND(&ifp->if_snd, m);
+ ifp->if_drv_flags |= IFF_DRV_OACTIVE;
+ break;
+ }
+ ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
+ m = ieee80211_encap(ni, m);
+ if (m == NULL) {
+ ieee80211_free_node(ni);
+ continue;
+ }
+ if (rum_tx_data(sc, m, ni) != 0) {
+ ieee80211_free_node(ni);
+ ifp->if_oerrors++;
+ break;
+ }
+ sc->sc_tx_timer = 5;
+ 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 = ifp->if_l2com;
+ struct ifreq *ifr = (struct ifreq *) data;
+ int error = 0, startall = 0;
+
+ switch (cmd) {
+ case SIOCSIFFLAGS:
+ RUM_LOCK(sc);
+ if (ifp->if_flags & IFF_UP) {
+ if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) {
+ rum_init(sc);
+ startall = 1;
+ } else
+ rum_update_promisc(sc);
+ } else {
+ if (ifp->if_drv_flags & IFF_DRV_RUNNING)
+ rum_stop(sc);
+ }
+ RUM_UNLOCK(sc);
+ if (startall)
+ ieee80211_start_all(ic);
+ break;
+ case SIOCGIFMEDIA:
+ error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
+ break;
+ case SIOCGIFADDR:
+ error = ether_ioctl(ifp, cmd, data);
+ break;
+ default:
+ error = EINVAL;
+ break;
+ }
+ return error;
+}
+
+static void
+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) {
+ device_printf(sc->sc_dev, "could not read EEPROM: %s\n",
+ 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) {
+ device_printf(sc->sc_dev,
+ "could not multi read MAC register: %s\n",
+ 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) {
+ device_printf(sc->sc_dev,
+ "could not multi write MAC register: %s\n",
+ 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) {
+ device_printf(sc->sc_dev, "could not write to BBP\n");
+ 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) {
+ device_printf(sc->sc_dev, "could not read BBP\n");
+ 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);
+ }
+
+ device_printf(sc->sc_dev, "could not read BBP\n");
+ 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) {
+ device_printf(sc->sc_dev, "could not write to RF\n");
+ 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 ifnet *ifp = sc->sc_ifp;
+ struct ieee80211com *ic = ifp->if_l2com;
+ uint32_t tmp;
+
+ tmp = rum_read(sc, RT2573_TXRX_CSR4);
+
+ tmp &= ~RT2573_MRR_CCK_FALLBACK;
+ if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan))
+ 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)
+{
+ struct ifnet *ifp = sc->sc_ifp;
+ struct ieee80211com *ic = ifp->if_l2com;
+ uint32_t tmp;
+
+ tmp = rum_read(sc, RT2573_TXRX_CSR4);
+
+ tmp &= ~RT2573_SHORT_PREAMBLE;
+ if (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 ifnet *ifp = sc->sc_ifp;
+ struct ieee80211com *ic = ifp->if_l2com;
+
+ /* 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_bsschan)) {
+ /* 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);
+}
+
+static void
+rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c)
+{
+ struct ifnet *ifp = sc->sc_ifp;
+ struct ieee80211com *ic = ifp->if_l2com;
+ 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 ifnet *ifp = sc->sc_ifp;
+ struct ieee80211com *ic = ifp->if_l2com;
+ struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
+ uint32_t tmp;
+
+ if (vap->iv_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 |= vap->iv_bss->ni_intval * 16;
+
+ tmp |= RT2573_TSF_TICKING | RT2573_ENABLE_TBTT;
+ if (vap->iv_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 = ifp->if_l2com;
+ 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_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 ifnet *ifp = sc->sc_ifp;
+ struct ieee80211com *ic = ifp->if_l2com;
+ 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_locked(struct rum_softc *sc)
+{
+#define N(a) (sizeof (a) / sizeof ((a)[0]))
+ struct ifnet *ifp = sc->sc_ifp;
+ struct ieee80211com *ic = ifp->if_l2com;
+ 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) {
+ device_printf(sc->sc_dev,
+ "timeout waiting for BBP/RF to wakeup\n");
+ 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) {
+ device_printf(sc->sc_dev, "could not allocate AMRR xfer\n");
+ 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) {
+ device_printf(sc->sc_dev, "could not open Tx pipe: %s\n",
+ usbd_errstr(error));
+ goto fail;
+ }
+ error = usbd_open_pipe(sc->sc_iface, sc->sc_rx_no, USBD_EXCLUSIVE_USE,
+ &sc->sc_rx_pipeh);
+ if (error != 0) {
+ device_printf(sc->sc_dev, "could not open Rx pipe: %s\n",
+ usbd_errstr(error));
+ goto fail;
+ }
+
+ /*
+ * Allocate Tx and Rx xfer queues.
+ */
+ error = rum_alloc_tx_list(sc);
+ if (error != 0) {
+ device_printf(sc->sc_dev, "could not allocate Tx list\n");
+ goto fail;
+ }
+ error = rum_alloc_rx_list(sc);
+ if (error != 0) {
+ device_printf(sc->sc_dev, "could not allocate Rx list\n");
+ 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;
+ return;
+
+fail: rum_stop(sc);
+#undef N
+}
+
+static void
+rum_init(void *priv)
+{
+ struct rum_softc *sc = priv;
+ struct ifnet *ifp = sc->sc_ifp;
+ struct ieee80211com *ic = ifp->if_l2com;
+
+ RUM_LOCK(sc);
+ rum_init_locked(sc);
+ RUM_UNLOCK(sc);
+
+ if (ifp->if_drv_flags & IFF_DRV_RUNNING)
+ ieee80211_start_all(ic); /* start all vap's */
+}
+
+static void
+rum_stop(void *priv)
+{
+ struct rum_softc *sc = priv;
+ struct ifnet *ifp = sc->sc_ifp;
+ uint32_t tmp;
+
+ sc->sc_tx_timer = 0;
+ ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
+
+ /* 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) {
+ device_printf(sc->sc_dev, "could not run firmware: %s\n",
+ usbd_errstr(error));
+ }
+ return error;
+}
+
+static int
+rum_prepare_beacon(struct rum_softc *sc, struct ieee80211vap *vap)
+{
+ struct ieee80211com *ic = vap->iv_ic;
+ const struct ieee80211_txparam *tp;
+ struct rum_tx_desc desc;
+ struct mbuf *m0;
+
+ m0 = ieee80211_beacon_alloc(vap->iv_bss, &RUM_VAP(vap)->bo);
+ if (m0 == NULL) {
+ return ENOBUFS;
+ }
+
+ tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)];
+ rum_setup_tx_desc(sc, &desc, RT2573_TX_TIMESTAMP, RT2573_TX_HWSEQ,
+ m0->m_pkthdr.len, tp->mgmtrate);
+
+ /* 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 ifnet *ifp = ni->ni_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-1) {
+ ifp->if_drv_flags |= IFF_DRV_OACTIVE;
+ m_freem(m);
+ ieee80211_free_node(ni);
+ return EIO;
+ }
+
+ 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)
+{
+ struct ieee80211vap *vap = ni->ni_vap;
+ struct rum_vap *rvp = RUM_VAP(vap);
+
+ /* clear statistic registers (STA_CSR0 to STA_CSR5) */
+ rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta);
+
+ ieee80211_amrr_node_init(&rvp->amrr, &RUM_NODE(ni)->amn, ni);
+
+ callout_reset(&rvp->amrr_ch, hz, rum_amrr_timeout, vap);
+}
+
+static void
+rum_amrr_timeout(void *arg)
+{
+ struct ieee80211vap *vap = arg;
+ struct rum_softc *sc = vap->iv_ic->ic_ifp->if_softc;
+ 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, vap,
+ 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 ieee80211vap *vap = priv;
+ struct rum_vap *rvp = RUM_VAP(vap);
+ struct ifnet *ifp = vap->iv_ic->ic_ifp;
+ struct rum_softc *sc = ifp->if_softc;
+ int ok, fail;
+
+ if (status != USBD_NORMAL_COMPLETION) {
+ device_printf(sc->sc_dev, "could not retrieve Tx statistics - "
+ "cancelling automatic rate control\n");
+ return;
+ }
+
+ ok = (le32toh(sc->sta[4]) >> 16) + /* TX ok w/o retry */
+ (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ retry */
+ fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */
+
+ ieee80211_amrr_tx_update(&RUM_NODE(vap->iv_bss)->amn,
+ ok+fail, ok, (le32toh(sc->sta[5]) & 0xffff) + fail);
+
+ ifp->if_oerrors += fail; /* count TX retry-fail as Tx errors */
+
+ callout_reset(&rvp->amrr_ch, hz, rum_amrr_timeout, vap);
+}
+
+/* ARGUSED */
+static struct ieee80211_node *
+rum_node_alloc(struct ieee80211vap *vap __unused,
+ const uint8_t mac[IEEE80211_ADDR_LEN] __unused)
+{
+ struct rum_node *rn;
+
+ rn = malloc(sizeof(struct rum_node), M_80211_NODE, M_NOWAIT | M_ZERO);
+ return rn != NULL ? &rn->ni : NULL;
+}
+
+static void
+rum_newassoc(struct ieee80211_node *ni, int isnew)
+{
+ struct ieee80211vap *vap = ni->ni_vap;
+
+ ieee80211_amrr_node_init(&RUM_VAP(vap)->amrr, &RUM_NODE(ni)->amn, ni);
+}
+
+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);
+
+ sc->sc_rates = ieee80211_get_ratetable(ic->ic_curchan);
+}
+
+static void
+rum_scantask(void *arg)
+{
+ struct rum_softc *sc = arg;
+ struct ifnet *ifp = sc->sc_ifp;
+ struct ieee80211com *ic = ifp->if_l2com;
+ struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
+ 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, vap->iv_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)
+{
+ struct ifnet *ifp = sc->sc_ifp;
+ struct ieee80211com *ic = ifp->if_l2com;
+ 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(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);
OpenPOWER on IntegriCloud