Aren
/
NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
NetBSD/sys/dev/usb/if_atu.c

2218 lines
56 KiB
C
Raw Blame History

/* $NetBSD: if_atu.c,v 1.29 2008/05/24 16:40:58 cube Exp $ */
/* $OpenBSD: if_atu.c,v 1.48 2004/12/30 01:53:21 dlg Exp $ */
/*
* Copyright (c) 2003, 2004
* Daan Vreeken <Danovitsch@Vitsch.net>. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Daan Vreeken.
* 4. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY Daan Vreeken AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL Daan Vreeken OR THE VOICES IN HIS HEAD
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Atmel AT76c503 / AT76c503a / AT76c505 / AT76c505a USB WLAN driver
* version 0.5 - 2004-08-03
*
* Originally written by Daan Vreeken <Danovitsch @ Vitsch . net>
* http://vitsch.net/bsd/atuwi
*
* Contributed to by :
* Chris Whitehouse, Alistair Phillips, Peter Pilka, Martijn van Buul,
* Suihong Liang, Arjan van Leeuwen, Stuart Walsh
*
* Ported to OpenBSD by Theo de Raadt and David Gwynne.
* Ported to NetBSD by Jesse Off
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: if_atu.c,v 1.29 2008/05/24 16:40:58 cube Exp $");
#include "bpfilter.h"
#include <sys/param.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/kthread.h>
#include <sys/queue.h>
#include <sys/device.h>
#include <sys/bus.h>
#include <dev/usb/usb.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usbdi_util.h>
#include <dev/usb/usbdivar.h>
#include <dev/usb/usbdevs.h>
#include <dev/microcode/atmel/atmel_intersil_fw.h>
#include <dev/microcode/atmel/atmel_rfmd2958-smc_fw.h>
#include <dev/microcode/atmel/atmel_rfmd2958_fw.h>
#include <dev/microcode/atmel/atmel_rfmd_fw.h>
#if NBPFILTER > 0
#include <net/bpf.h>
#include <net/bpfdesc.h>
#endif
#include <net/if.h>
#include <net/if_dl.h>
#include <net/if_media.h>
#include <net/if_ether.h>
#ifdef INET
#include <netinet/in.h>
#include <netinet/if_ether.h>
#endif
#include <net80211/ieee80211_var.h>
#include <net80211/ieee80211_radiotap.h>
#ifdef USB_DEBUG
#define ATU_DEBUG
#endif
#include <dev/usb/if_atureg.h>
#ifdef ATU_DEBUG
#define DPRINTF(x) do { if (atudebug) printf x; } while (0)
#define DPRINTFN(n,x) do { if (atudebug>(n)) printf x; } while (0)
int atudebug = 1;
#else
#define DPRINTF(x)
#define DPRINTFN(n,x)
#endif
/*
* Various supported device vendors/products/radio type.
*/
struct atu_type atu_devs[] = {
{ USB_VENDOR_ATMEL, USB_PRODUCT_ATMEL_BW002,
RadioRFMD, ATU_NO_QUIRK },
{ USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5D6050,
RadioRFMD, ATU_NO_QUIRK },
{ USB_VENDOR_ATMEL, USB_PRODUCT_ATMEL_AT76C503A,
RadioIntersil, ATU_NO_QUIRK },
{ USB_VENDOR_LEXAR, USB_PRODUCT_LEXAR_2662WAR,
RadioRFMD, ATU_NO_QUIRK },
/* Belkin F5D6050 */
{ USB_VENDOR_SMC3, USB_PRODUCT_SMC3_2662WUSB,
RadioRFMD, ATU_NO_QUIRK },
{ USB_VENDOR_LINKSYS2, USB_PRODUCT_LINKSYS2_WUSB11,
RadioRFMD, ATU_NO_QUIRK },
{ USB_VENDOR_LINKSYS3, USB_PRODUCT_LINKSYS3_WUSB11V28,
RadioRFMD2958, ATU_NO_QUIRK },
{ USB_VENDOR_NETGEAR2, USB_PRODUCT_NETGEAR2_MA101B,
RadioRFMD, ATU_NO_QUIRK },
{ USB_VENDOR_ACERP, USB_PRODUCT_ACERP_AWL400,
RadioRFMD, ATU_NO_QUIRK },
{ USB_VENDOR_ATMEL, USB_PRODUCT_ATMEL_WL1130,
RadioRFMD2958, ATU_NO_QUIRK },
{ USB_VENDOR_LINKSYS3, USB_PRODUCT_LINKSYS3_WUSB11V28,
RadioRFMD2958, ATU_NO_QUIRK },
{ USB_VENDOR_AINCOMM, USB_PRODUCT_AINCOMM_AWU2000B,
RadioRFMD2958, ATU_NO_QUIRK },
/* SMC2662 V.4 */
{ USB_VENDOR_ATMEL, USB_PRODUCT_ATMEL_AT76C505A,
RadioRFMD2958_SMC, ATU_QUIRK_NO_REMAP | ATU_QUIRK_FW_DELAY },
{ USB_VENDOR_ACERP, USB_PRODUCT_ACERP_AWL300,
RadioIntersil, ATU_NO_QUIRK },
{ USB_VENDOR_OQO, USB_PRODUCT_OQO_WIFI01,
RadioRFMD2958_SMC, ATU_QUIRK_NO_REMAP | ATU_QUIRK_FW_DELAY },
{ USB_VENDOR_SMC3, USB_PRODUCT_SMC3_2662WV1,
RadioIntersil, ATU_NO_QUIRK },
};
struct atu_radfirm {
enum atu_radio_type atur_type;
unsigned char *atur_internal;
size_t atur_internal_sz;
unsigned char *atur_external;
size_t atur_external_sz;
} atu_radfirm[] = {
{ RadioRFMD,
atmel_fw_rfmd_int, sizeof(atmel_fw_rfmd_int),
atmel_fw_rfmd_ext, sizeof(atmel_fw_rfmd_ext) },
{ RadioRFMD2958,
atmel_fw_rfmd2958_int, sizeof(atmel_fw_rfmd2958_int),
atmel_fw_rfmd2958_ext, sizeof(atmel_fw_rfmd2958_ext) },
{ RadioRFMD2958_SMC,
atmel_fw_rfmd2958_smc_int, sizeof(atmel_fw_rfmd2958_smc_int),
atmel_fw_rfmd2958_smc_ext, sizeof(atmel_fw_rfmd2958_smc_ext) },
{ RadioIntersil,
atmel_fw_intersil_int, sizeof(atmel_fw_intersil_int),
atmel_fw_intersil_ext, sizeof(atmel_fw_intersil_ext) }
};
int atu_newbuf(struct atu_softc *, struct atu_chain *, struct mbuf *);
void atu_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
void atu_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
void atu_start(struct ifnet *);
int atu_ioctl(struct ifnet *, u_long, void *);
int atu_init(struct ifnet *);
void atu_stop(struct ifnet *, int);
void atu_watchdog(struct ifnet *);
usbd_status atu_usb_request(struct atu_softc *sc, u_int8_t type,
u_int8_t request, u_int16_t value, u_int16_t index,
u_int16_t length, u_int8_t *data);
int atu_send_command(struct atu_softc *sc, u_int8_t *command, int size);
int atu_get_cmd_status(struct atu_softc *sc, u_int8_t cmd,
u_int8_t *status);
int atu_wait_completion(struct atu_softc *sc, u_int8_t cmd,
u_int8_t *status);
int atu_send_mib(struct atu_softc *sc, u_int8_t type,
u_int8_t size, u_int8_t index, void *data);
int atu_get_mib(struct atu_softc *sc, u_int8_t type,
u_int8_t size, u_int8_t index, u_int8_t *buf);
#if 0
int atu_start_ibss(struct atu_softc *sc);
#endif
int atu_start_scan(struct atu_softc *sc);
int atu_switch_radio(struct atu_softc *sc, int state);
int atu_initial_config(struct atu_softc *sc);
int atu_join(struct atu_softc *sc, struct ieee80211_node *node);
int8_t atu_get_dfu_state(struct atu_softc *sc);
u_int8_t atu_get_opmode(struct atu_softc *sc, u_int8_t *mode);
void atu_internal_firmware(device_t);
void atu_external_firmware(device_t);
int atu_get_card_config(struct atu_softc *sc);
int atu_media_change(struct ifnet *ifp);
void atu_media_status(struct ifnet *ifp, struct ifmediareq *req);
int atu_tx_list_init(struct atu_softc *);
int atu_rx_list_init(struct atu_softc *);
void atu_xfer_list_free(struct atu_softc *sc, struct atu_chain *ch,
int listlen);
#ifdef ATU_DEBUG
void atu_debug_print(struct atu_softc *sc);
#endif
void atu_task(void *);
int atu_newstate(struct ieee80211com *, enum ieee80211_state, int);
int atu_tx_start(struct atu_softc *, struct ieee80211_node *,
struct atu_chain *, struct mbuf *);
void atu_complete_attach(struct atu_softc *);
u_int8_t atu_calculate_padding(int);
USB_DECLARE_DRIVER(atu);
usbd_status
atu_usb_request(struct atu_softc *sc, u_int8_t type,
u_int8_t request, u_int16_t value, u_int16_t index, u_int16_t length,
u_int8_t *data)
{
usb_device_request_t req;
usbd_xfer_handle xfer;
usbd_status err;
int total_len = 0, s;
req.bmRequestType = type;
req.bRequest = request;
USETW(req.wValue, value);
USETW(req.wIndex, index);
USETW(req.wLength, length);
#ifdef ATU_DEBUG
if (atudebug) {
DPRINTFN(20, ("%s: req=%02x val=%02x ind=%02x "
"len=%02x\n", USBDEVNAME(sc->atu_dev), request,
value, index, length));
}
#endif /* ATU_DEBUG */
s = splnet();
xfer = usbd_alloc_xfer(sc->atu_udev);
usbd_setup_default_xfer(xfer, sc->atu_udev, 0, 500000, &req, data,
length, USBD_SHORT_XFER_OK, 0);
err = usbd_sync_transfer(xfer);
usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL);
#ifdef ATU_DEBUG
if (atudebug) {
if (type & UT_READ) {
DPRINTFN(20, ("%s: transfered 0x%x bytes in\n",
USBDEVNAME(sc->atu_dev), total_len));
} else {
if (total_len != length)
DPRINTF(("%s: wrote only %x bytes\n",
USBDEVNAME(sc->atu_dev), total_len));
}
}
#endif /* ATU_DEBUG */
usbd_free_xfer(xfer);
splx(s);
return(err);
}
int
atu_send_command(struct atu_softc *sc, u_int8_t *command, int size)
{
return atu_usb_request(sc, UT_WRITE_VENDOR_DEVICE, 0x0e, 0x0000,
0x0000, size, command);
}
int
atu_get_cmd_status(struct atu_softc *sc, u_int8_t cmd, u_int8_t *status)
{
/*
* all other drivers (including Windoze) request 40 bytes of status
* and get a short-xfer of just 6 bytes. we can save 34 bytes of
* buffer if we just request those 6 bytes in the first place :)
*/
/*
return atu_usb_request(sc, UT_READ_VENDOR_INTERFACE, 0x22, cmd,
0x0000, 40, status);
*/
return atu_usb_request(sc, UT_READ_VENDOR_INTERFACE, 0x22, cmd,
0x0000, 6, status);
}
int
atu_wait_completion(struct atu_softc *sc, u_int8_t cmd, u_int8_t *status)
{
int idle_count = 0, err;
u_int8_t statusreq[6];
DPRINTFN(15, ("%s: wait-completion: cmd=%02x\n",
USBDEVNAME(sc->atu_dev), cmd));
while (1) {
err = atu_get_cmd_status(sc, cmd, statusreq);
if (err)
return err;
#ifdef ATU_DEBUG
if (atudebug) {
DPRINTFN(20, ("%s: status=%s cmd=%02x\n",
USBDEVNAME(sc->atu_dev),
ether_sprintf(statusreq), cmd));
}
#endif /* ATU_DEBUG */
/*
* during normal operations waiting on STATUS_IDLE
* will never happen more than once
*/
if ((statusreq[5] == STATUS_IDLE) && (idle_count++ > 20)) {
DPRINTF(("%s: idle_count > 20!\n",
USBDEVNAME(sc->atu_dev)));
return 0;
}
if ((statusreq[5] != STATUS_IN_PROGRESS) &&
(statusreq[5] != STATUS_IDLE)) {
if (status != NULL)
*status = statusreq[5];
return 0;
}
usbd_delay_ms(sc->atu_udev, 25);
}
}
int
atu_send_mib(struct atu_softc *sc, u_int8_t type, u_int8_t size,
u_int8_t index, void *data)
{
int err;
struct atu_cmd_set_mib request;
/*
* We don't construct a MIB packet first and then memcpy it into an
* Atmel-command-packet, we just construct it the right way at once :)
*/
memset(&request, 0, sizeof(request));
request.AtCmd = CMD_SET_MIB;
USETW(request.AtSize, size + 4);
request.MIBType = type;
request.MIBSize = size;
request.MIBIndex = index;
request.MIBReserved = 0;
/*
* For 1 and 2 byte requests we assume a direct value,
* everything bigger than 2 bytes we assume a pointer to the data
*/
switch (size) {
case 0:
break;
case 1:
request.data[0]=(long)data & 0x000000ff;
break;
case 2:
request.data[0]=(long)data & 0x000000ff;
request.data[1]=(long)data >> 8;
break;
default:
memcpy(request.data, data, size);
break;
}
err = atu_usb_request(sc, UT_WRITE_VENDOR_DEVICE, 0x0e, 0x0000,
0x0000, size+8, (uByte *)&request);
if (err)
return (err);
DPRINTFN(15, ("%s: sendmib : waitcompletion...\n",
USBDEVNAME(sc->atu_dev)));
return atu_wait_completion(sc, CMD_SET_MIB, NULL);
}
int
atu_get_mib(struct atu_softc *sc, u_int8_t type, u_int8_t size,
u_int8_t index, u_int8_t *buf)
{
/* linux/at76c503.c - 478 */
return atu_usb_request(sc, UT_READ_VENDOR_INTERFACE, 0x033,
type << 8, index, size, buf);
}
#if 0
int
atu_start_ibss(struct atu_softc *sc)
{
struct ieee80211com *ic = &sc->sc_ic;
int err;
struct atu_cmd_start_ibss Request;
Request.Cmd = CMD_START_IBSS;
Request.Reserved = 0;
Request.Size = sizeof(Request) - 4;
memset(Request.BSSID, 0x00, sizeof(Request.BSSID));
memset(Request.SSID, 0x00, sizeof(Request.SSID));
memcpy(Request.SSID, ic->ic_des_ssid, ic->ic_des_ssidlen);
Request.SSIDSize = ic->ic_des_ssidlen;
if (sc->atu_desired_channel != IEEE80211_CHAN_ANY)
Request.Channel = (u_int8_t)sc->atu_desired_channel;
else
Request.Channel = ATU_DEFAULT_CHANNEL;
Request.BSSType = AD_HOC_MODE;
memset(Request.Res, 0x00, sizeof(Request.Res));
/* Write config to adapter */
err = atu_send_command(sc, (u_int8_t *)&Request, sizeof(Request));
if (err) {
DPRINTF(("%s: start ibss failed!\n",
USBDEVNAME(sc->atu_dev)));
return err;
}
/* Wait for the adapter to do it's thing */
err = atu_wait_completion(sc, CMD_START_IBSS, NULL);
if (err) {
DPRINTF(("%s: error waiting for start_ibss\n",
USBDEVNAME(sc->atu_dev)));
return err;
}
/* Get the current BSSID */
err = atu_get_mib(sc, MIB_MAC_MGMT__CURRENT_BSSID, sc->atu_bssid);
if (err) {
DPRINTF(("%s: could not get BSSID!\n",
USBDEVNAME(sc->atu_dev)));
return err;
}
DPRINTF(("%s: started a new IBSS (BSSID=%s)\n",
USBDEVNAME(sc->atu_dev), ether_sprintf(sc->atu_bssid)));
return 0;
}
#endif
int
atu_start_scan(struct atu_softc *sc)
{
struct ieee80211com *ic = &sc->sc_ic;
struct atu_cmd_do_scan Scan;
usbd_status err;
int Cnt;
memset(&Scan, 0, sizeof(Scan));
Scan.Cmd = CMD_START_SCAN;
Scan.Reserved = 0;
USETW(Scan.Size, sizeof(Scan) - 4);
/* use the broadcast BSSID (in active scan) */
for (Cnt=0; Cnt<6; Cnt++)
Scan.BSSID[Cnt] = 0xff;
memset(Scan.SSID, 0x00, sizeof(Scan.SSID));
memcpy(Scan.SSID, ic->ic_des_essid, ic->ic_des_esslen);
Scan.SSID_Len = ic->ic_des_esslen;
/* default values for scan */
Scan.ScanType = ATU_SCAN_ACTIVE;
if (sc->atu_desired_channel != IEEE80211_CHAN_ANY)
Scan.Channel = (u_int8_t)sc->atu_desired_channel;
else
Scan.Channel = sc->atu_channel;
ic->ic_curchan = &ic->ic_channels[Scan.Channel];
/* we like scans to be quick :) */
/* the time we wait before sending probe's */
USETW(Scan.ProbeDelay, 0);
/* the time we stay on one channel */
USETW(Scan.MinChannelTime, 100);
USETW(Scan.MaxChannelTime, 200);
/* wether or not we scan all channels */
Scan.InternationalScan = 0xc1;
#ifdef ATU_DEBUG
if (atudebug) {
DPRINTFN(20, ("%s: scan cmd len=%02zx\n",
USBDEVNAME(sc->atu_dev), sizeof(Scan)));
}
#endif /* ATU_DEBUG */
/* Write config to adapter */
err = atu_send_command(sc, (u_int8_t *)&Scan, sizeof(Scan));
if (err)
return err;
/*
* We don't wait for the command to finish... the mgmt-thread will do
* that for us
*/
/*
err = atu_wait_completion(sc, CMD_START_SCAN, NULL);
if (err)
return err;
*/
return 0;
}
int
atu_switch_radio(struct atu_softc *sc, int state)
{
usbd_status err;
struct atu_cmd CmdRadio;
if (sc->atu_radio == RadioIntersil) {
/*
* Intersil doesn't seem to need/support switching the radio
* on/off
*/
return 0;
}
memset(&CmdRadio, 0, sizeof(CmdRadio));
CmdRadio.Cmd = CMD_RADIO_ON;
if (sc->atu_radio_on != state) {
if (state == 0)
CmdRadio.Cmd = CMD_RADIO_OFF;
err = atu_send_command(sc, (u_int8_t *)&CmdRadio,
sizeof(CmdRadio));
if (err)
return err;
err = atu_wait_completion(sc, CmdRadio.Cmd, NULL);
if (err)
return err;
DPRINTFN(10, ("%s: radio turned %s\n",
USBDEVNAME(sc->atu_dev), state ? "on" : "off"));
sc->atu_radio_on = state;
}
return 0;
}
int
atu_initial_config(struct atu_softc *sc)
{
struct ieee80211com *ic = &sc->sc_ic;
u_int32_t i;
usbd_status err;
/* u_int8_t rates[4] = {0x82, 0x84, 0x8B, 0x96};*/
u_int8_t rates[4] = {0x82, 0x04, 0x0B, 0x16};
struct atu_cmd_card_config cmd;
u_int8_t reg_domain;
DPRINTFN(10, ("%s: sending mac-addr\n", USBDEVNAME(sc->atu_dev)));
err = atu_send_mib(sc, MIB_MAC_ADDR__ADDR, ic->ic_myaddr);
if (err) {
DPRINTF(("%s: error setting mac-addr\n",
USBDEVNAME(sc->atu_dev)));
return err;
}
/*
DPRINTF(("%s: sending reg-domain\n", USBDEVNAME(sc->atu_dev)));
err = atu_send_mib(sc, MIB_PHY__REG_DOMAIN, NR(0x30));
if (err) {
DPRINTF(("%s: error setting mac-addr\n",
USBDEVNAME(sc->atu_dev)));
return err;
}
*/
memset(&cmd, 0, sizeof(cmd));
cmd.Cmd = CMD_STARTUP;
cmd.Reserved = 0;
USETW(cmd.Size, sizeof(cmd) - 4);
if (sc->atu_desired_channel != IEEE80211_CHAN_ANY)
cmd.Channel = (u_int8_t)sc->atu_desired_channel;
else
cmd.Channel = sc->atu_channel;
cmd.AutoRateFallback = 1;
memcpy(cmd.BasicRateSet, rates, 4);
/* ShortRetryLimit should be 7 according to 802.11 spec */
cmd.ShortRetryLimit = 7;
USETW(cmd.RTS_Threshold, 2347);
USETW(cmd.FragThreshold, 2346);
/* Doesn't seem to work, but we'll set it to 1 anyway */
cmd.PromiscuousMode = 1;
/* this goes into the beacon we transmit */
if (ic->ic_flags & IEEE80211_F_PRIVACY)
cmd.PrivacyInvoked = 1;
else
cmd.PrivacyInvoked = 0;
cmd.ExcludeUnencrypted = 0;
if (ic->ic_flags & IEEE80211_F_PRIVACY) {
switch (ic->ic_nw_keys[ic->ic_def_txkey].wk_keylen) {
case 5:
cmd.EncryptionType = ATU_WEP_40BITS;
break;
case 13:
cmd.EncryptionType = ATU_WEP_104BITS;
break;
default:
cmd.EncryptionType = ATU_WEP_OFF;
break;
}
cmd.WEP_DefaultKeyID = ic->ic_def_txkey;
for (i = 0; i < IEEE80211_WEP_NKID; i++) {
memcpy(cmd.WEP_DefaultKey[i], ic->ic_nw_keys[i].wk_key,
ic->ic_nw_keys[i].wk_keylen);
}
}
/* Setting the SSID here doesn't seem to do anything */
memset(cmd.SSID, 0x00, sizeof(cmd.SSID));
memcpy(cmd.SSID, ic->ic_des_essid, ic->ic_des_esslen);
cmd.SSID_Len = ic->ic_des_esslen;
cmd.ShortPreamble = 0;
USETW(cmd.BeaconPeriod, 100);
/* cmd.BeaconPeriod = 65535; */
/*
* TODO:
* read reg domain MIB_PHY @ 0x17 (1 byte), (reply = 0x30)
* we should do something usefull with this info. right now it's just
* ignored
*/
err = atu_get_mib(sc, MIB_PHY__REG_DOMAIN, &reg_domain);
if (err) {
DPRINTF(("%s: could not get regdomain!\n",
USBDEVNAME(sc->atu_dev)));
} else {
DPRINTF(("%s: in reg domain 0x%x according to the "
"adapter\n", USBDEVNAME(sc->atu_dev), reg_domain));
}
#ifdef ATU_DEBUG
if (atudebug) {
DPRINTFN(20, ("%s: configlen=%02zx\n", USBDEVNAME(sc->atu_dev),
sizeof(cmd)));
}
#endif /* ATU_DEBUG */
/* Windoze : driver says exclude-unencrypted=1 & encr-type=1 */
err = atu_send_command(sc, (u_int8_t *)&cmd, sizeof(cmd));
if (err)
return err;
err = atu_wait_completion(sc, CMD_STARTUP, NULL);
if (err)
return err;
/* Turn on radio now */
err = atu_switch_radio(sc, 1);
if (err)
return err;
/* preamble type = short */
err = atu_send_mib(sc, MIB_LOCAL__PREAMBLE, NR(PREAMBLE_SHORT));
if (err)
return err;
/* frag = 1536 */
err = atu_send_mib(sc, MIB_MAC__FRAG, NR(2346));
if (err)
return err;
/* rts = 1536 */
err = atu_send_mib(sc, MIB_MAC__RTS, NR(2347));
if (err)
return err;
/* auto rate fallback = 1 */
err = atu_send_mib(sc, MIB_LOCAL__AUTO_RATE_FALLBACK, NR(1));
if (err)
return err;
/* power mode = full on, no power saving */
err = atu_send_mib(sc, MIB_MAC_MGMT__POWER_MODE,
NR(POWER_MODE_ACTIVE));
if (err)
return err;
DPRINTFN(10, ("%s: completed initial config\n",
USBDEVNAME(sc->atu_dev)));
return 0;
}
int
atu_join(struct atu_softc *sc, struct ieee80211_node *node)
{
struct atu_cmd_join join;
u_int8_t status = 0; /* XXX: GCC */
usbd_status err;
memset(&join, 0, sizeof(join));
join.Cmd = CMD_JOIN;
join.Reserved = 0x00;
USETW(join.Size, sizeof(join) - 4);
DPRINTFN(15, ("%s: pre-join sc->atu_bssid=%s\n",
USBDEVNAME(sc->atu_dev), ether_sprintf(sc->atu_bssid)));
DPRINTFN(15, ("%s: mode=%d\n", USBDEVNAME(sc->atu_dev),
sc->atu_mode));
memcpy(join.bssid, node->ni_bssid, IEEE80211_ADDR_LEN);
memset(join.essid, 0x00, 32);
memcpy(join.essid, node->ni_essid, node->ni_esslen);
join.essid_size = node->ni_esslen;
if (node->ni_capinfo & IEEE80211_CAPINFO_IBSS)
join.bss_type = AD_HOC_MODE;
else
join.bss_type = INFRASTRUCTURE_MODE;
join.channel = ieee80211_chan2ieee(&sc->sc_ic, node->ni_chan);
USETW(join.timeout, ATU_JOIN_TIMEOUT);
join.reserved = 0x00;
DPRINTFN(10, ("%s: trying to join BSSID=%s\n",
USBDEVNAME(sc->atu_dev), ether_sprintf(join.bssid)));
err = atu_send_command(sc, (u_int8_t *)&join, sizeof(join));
if (err) {
DPRINTF(("%s: ERROR trying to join IBSS\n",
USBDEVNAME(sc->atu_dev)));
return err;
}
err = atu_wait_completion(sc, CMD_JOIN, &status);
if (err) {
DPRINTF(("%s: error joining BSS!\n",
USBDEVNAME(sc->atu_dev)));
return err;
}
if (status != STATUS_COMPLETE) {
DPRINTF(("%s: error joining... [status=%02x]\n",
USBDEVNAME(sc->atu_dev), status));
return status;
} else {
DPRINTFN(10, ("%s: joined BSS\n", USBDEVNAME(sc->atu_dev)));
}
return err;
}
/*
* Get the state of the DFU unit
*/
int8_t
atu_get_dfu_state(struct atu_softc *sc)
{
u_int8_t state;
if (atu_usb_request(sc, DFU_GETSTATE, 0, 0, 1, &state))
return -1;
return state;
}
/*
* Get MAC opmode
*/
u_int8_t
atu_get_opmode(struct atu_softc *sc, u_int8_t *mode)
{
return atu_usb_request(sc, UT_READ_VENDOR_INTERFACE, 0x33, 0x0001,
0x0000, 1, mode);
}
/*
* Upload the internal firmware into the device
*/
void
atu_internal_firmware(device_t arg)
{
struct atu_softc *sc = device_private(arg);
u_char state, *ptr = NULL, *firm = NULL, status[6];
int block_size, block = 0, err, i;
size_t bytes_left = 0;
/*
* Uploading firmware is done with the DFU (Device Firmware Upgrade)
* interface. See "Universal Serial Bus - Device Class Specification
* for Device Firmware Upgrade" pdf for details of the protocol.
* Maybe this could be moved to a separate 'firmware driver' once more
* device drivers need it... For now we'll just do it here.
*
* Just for your information, the Atmel's DFU descriptor looks like
* this:
*
* 07 size
* 21 type
* 01 capabilities : only firmware download, need reset
* after download
* 13 05 detach timeout : max 1299ms between DFU_DETACH and
* reset
* 00 04 max bytes of firmware per transaction : 1024
*/
/* Choose the right firmware for the device */
for (i = 0; i < __arraycount(atu_radfirm); i++)
if (sc->atu_radio == atu_radfirm[i].atur_type) {
firm = atu_radfirm[i].atur_internal;
bytes_left = atu_radfirm[i].atur_internal_sz;
}
if (firm == NULL) {
aprint_error_dev(arg, "no firmware found\n");
return;
}
ptr = firm;
state = atu_get_dfu_state(sc);
while (block >= 0 && state > 0) {
switch (state) {
case DFUState_DnLoadSync:
/* get DFU status */
err = atu_usb_request(sc, DFU_GETSTATUS, 0, 0 , 6,
status);
if (err) {
DPRINTF(("%s: dfu_getstatus failed!\n",
USBDEVNAME(sc->atu_dev)));
return;
}
/* success means state => DnLoadIdle */
state = DFUState_DnLoadIdle;
continue;
break;
case DFUState_DFUIdle:
case DFUState_DnLoadIdle:
if (bytes_left>=DFU_MaxBlockSize)
block_size = DFU_MaxBlockSize;
else
block_size = bytes_left;
DPRINTFN(15, ("%s: firmware block %d\n",
USBDEVNAME(sc->atu_dev), block));
err = atu_usb_request(sc, DFU_DNLOAD, block++, 0,
block_size, ptr);
if (err) {
DPRINTF(("%s: dfu_dnload failed\n",
USBDEVNAME(sc->atu_dev)));
return;
}
ptr += block_size;
bytes_left -= block_size;
if (block_size == 0)
block = -1;
break;
default:
usbd_delay_ms(sc->atu_udev, 100);
DPRINTFN(20, ("%s: sleeping for a while\n",
USBDEVNAME(sc->atu_dev)));
break;
}
state = atu_get_dfu_state(sc);
}
if (state != DFUState_ManifestSync) {
DPRINTF(("%s: state != manifestsync... eek!\n",
USBDEVNAME(sc->atu_dev)));
}
err = atu_usb_request(sc, DFU_GETSTATUS, 0, 0, 6, status);
if (err) {
DPRINTF(("%s: dfu_getstatus failed!\n",
USBDEVNAME(sc->atu_dev)));
return;
}
DPRINTFN(15, ("%s: sending remap\n", USBDEVNAME(sc->atu_dev)));
err = atu_usb_request(sc, DFU_REMAP, 0, 0, 0, NULL);
if ((err) && (! sc->atu_quirk & ATU_QUIRK_NO_REMAP)) {
DPRINTF(("%s: remap failed!\n", USBDEVNAME(sc->atu_dev)));
return;
}
/* after a lot of trying and measuring I found out the device needs
* about 56 miliseconds after sending the remap command before
* it's ready to communicate again. So we'll wait just a little bit
* longer than that to be sure...
*/
usbd_delay_ms(sc->atu_udev, 56+100);
aprint_error_dev(arg, "reattaching after firmware upload\n");
usb_needs_reattach(sc->atu_udev);
}
void
atu_external_firmware(device_t arg)
{
struct atu_softc *sc = device_private(arg);
u_char *ptr = NULL, *firm = NULL;
int block_size, block = 0, err, i;
size_t bytes_left = 0;
for (i = 0; i < __arraycount(atu_radfirm); i++)
if (sc->atu_radio == atu_radfirm[i].atur_type) {
firm = atu_radfirm[i].atur_external;
bytes_left = atu_radfirm[i].atur_external_sz;
}
if (firm == NULL) {
aprint_error_dev(arg, "no firmware found\n");
return;
}
ptr = firm;
while (bytes_left) {
if (bytes_left > 1024)
block_size = 1024;
else
block_size = bytes_left;
DPRINTFN(15, ("%s: block:%d size:%d\n",
USBDEVNAME(sc->atu_dev), block, block_size));
err = atu_usb_request(sc, UT_WRITE_VENDOR_DEVICE, 0x0e,
0x0802, block, block_size, ptr);
if (err) {
DPRINTF(("%s: could not load external firmware "
"block\n", USBDEVNAME(sc->atu_dev)));
return;
}
ptr += block_size;
block++;
bytes_left -= block_size;
}
err = atu_usb_request(sc, UT_WRITE_VENDOR_DEVICE, 0x0e, 0x0802,
block, 0, NULL);
if (err) {
DPRINTF(("%s: could not load last zero-length firmware "
"block\n", USBDEVNAME(sc->atu_dev)));
return;
}
/*
* The SMC2662w V.4 seems to require some time to do it's thing with
* the external firmware... 20 ms isn't enough, but 21 ms works 100
* times out of 100 tries. We'll wait a bit longer just to be sure
*/
if (sc->atu_quirk & ATU_QUIRK_FW_DELAY)
usbd_delay_ms(sc->atu_udev, 21 + 100);
DPRINTFN(10, ("%s: external firmware upload done\n",
USBDEVNAME(sc->atu_dev)));
/* complete configuration after the firmwares have been uploaded */
atu_complete_attach(sc);
}
int
atu_get_card_config(struct atu_softc *sc)
{
struct ieee80211com *ic = &sc->sc_ic;
struct atu_rfmd_conf rfmd_conf;
struct atu_intersil_conf intersil_conf;
int err;
switch (sc->atu_radio) {
case RadioRFMD:
case RadioRFMD2958:
case RadioRFMD2958_SMC:
err = atu_usb_request(sc, UT_READ_VENDOR_INTERFACE, 0x33,
0x0a02, 0x0000, sizeof(rfmd_conf),
(u_int8_t *)&rfmd_conf);
if (err) {
DPRINTF(("%s: could not get rfmd config!\n",
USBDEVNAME(sc->atu_dev)));
return err;
}
memcpy(ic->ic_myaddr, rfmd_conf.MACAddr, IEEE80211_ADDR_LEN);
break;
case RadioIntersil:
err = atu_usb_request(sc, UT_READ_VENDOR_INTERFACE, 0x33,
0x0902, 0x0000, sizeof(intersil_conf),
(u_int8_t *)&intersil_conf);
if (err) {
DPRINTF(("%s: could not get intersil config!\n",
USBDEVNAME(sc->atu_dev)));
return err;
}
memcpy(ic->ic_myaddr, intersil_conf.MACAddr,
IEEE80211_ADDR_LEN);
break;
}
return 0;
}
/*
* Probe for an AT76c503 chip.
*/
USB_MATCH(atu)
{
USB_MATCH_START(atu, uaa);
int i;
for (i = 0; i < __arraycount(atu_devs); i++) {
struct atu_type *t = &atu_devs[i];
if (uaa->vendor == t->atu_vid &&
uaa->product == t->atu_pid) {
return(UMATCH_VENDOR_PRODUCT);
}
}
return(UMATCH_NONE);
}
int
atu_media_change(struct ifnet *ifp)
{
struct atu_softc *sc = ifp->if_softc;
struct ieee80211com *ic = &sc->sc_ic;
int err, s;
DPRINTFN(10, ("%s: atu_media_change\n", USBDEVNAME(sc->atu_dev)));
err = ieee80211_media_change(ifp);
if (err == ENETRESET) {
if ((ifp->if_flags & (IFF_RUNNING|IFF_UP)) ==
(IFF_RUNNING|IFF_UP)) {
s = splnet();
ieee80211_new_state(ic, IEEE80211_S_INIT, -1);
atu_initial_config(sc);
ieee80211_new_state(ic, IEEE80211_S_SCAN, -1);
splx(s);
}
err = 0;
}
return (err);
}
void
atu_media_status(struct ifnet *ifp, struct ifmediareq *req)
{
#ifdef ATU_DEBUG
struct atu_softc *sc = ifp->if_softc;
#endif /* ATU_DEBUG */
DPRINTFN(10, ("%s: atu_media_status\n", USBDEVNAME(sc->atu_dev)));
ieee80211_media_status(ifp, req);
}
void
atu_task(void *arg)
{
struct atu_softc *sc = (struct atu_softc *)arg;
struct ieee80211com *ic = &sc->sc_ic;
usbd_status err;
int s;
DPRINTFN(10, ("%s: atu_task\n", USBDEVNAME(sc->atu_dev)));
if (sc->sc_state != ATU_S_OK)
return;
switch (sc->sc_cmd) {
case ATU_C_SCAN:
err = atu_start_scan(sc);
if (err) {
DPRINTFN(1, ("%s: atu_task: couldn't start scan!\n",
USBDEVNAME(sc->atu_dev)));
return;
}
err = atu_wait_completion(sc, CMD_START_SCAN, NULL);
if (err) {
DPRINTF(("%s: atu_task: error waiting for scan\n",
USBDEVNAME(sc->atu_dev)));
return;
}
DPRINTF(("%s: ==========================> END OF SCAN!\n",
USBDEVNAME(sc->atu_dev)));
s = splnet();
ieee80211_next_scan(ic);
splx(s);
DPRINTF(("%s: ----------------------======> END OF SCAN2!\n",
USBDEVNAME(sc->atu_dev)));
break;
case ATU_C_JOIN:
atu_join(sc, ic->ic_bss);
}
}
int
atu_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg)
{
struct ifnet *ifp = ic->ic_ifp;
struct atu_softc *sc = ifp->if_softc;
enum ieee80211_state ostate = ic->ic_state;
DPRINTFN(10, ("%s: atu_newstate: %s -> %s\n", USBDEVNAME(sc->atu_dev),
ieee80211_state_name[ostate], ieee80211_state_name[nstate]));
switch (nstate) {
case IEEE80211_S_SCAN:
memcpy(ic->ic_chan_scan, ic->ic_chan_active,
sizeof(ic->ic_chan_active));
ieee80211_node_table_reset(&ic->ic_scan);
/* tell the event thread that we want a scan */
sc->sc_cmd = ATU_C_SCAN;
usb_add_task(sc->atu_udev, &sc->sc_task, USB_TASKQ_DRIVER);
/* handle this ourselves */
ic->ic_state = nstate;
return (0);
case IEEE80211_S_AUTH:
case IEEE80211_S_RUN:
if (ostate == IEEE80211_S_SCAN) {
sc->sc_cmd = ATU_C_JOIN;
usb_add_task(sc->atu_udev, &sc->sc_task,
USB_TASKQ_DRIVER);
}
break;
default:
/* nothing to do */
break;
}
return (*sc->sc_newstate)(ic, nstate, arg);
}
/*
* Attach the interface. Allocate softc structures, do
* setup and ethernet/BPF attach.
*/
USB_ATTACH(atu)
{
USB_ATTACH_START(atu, sc, uaa);
char *devinfop;
usbd_status err;
usbd_device_handle dev = uaa->device;
u_int8_t mode, channel;
int i;
sc->atu_dev = self;
sc->sc_state = ATU_S_UNCONFIG;
devinfop = usbd_devinfo_alloc(dev, 0);
USB_ATTACH_SETUP;
aprint_normal_dev(self, "%s\n", devinfop);
usbd_devinfo_free(devinfop);
err = usbd_set_config_no(dev, ATU_CONFIG_NO, 1);
if (err) {
aprint_error_dev(self, "setting config no failed\n");
USB_ATTACH_ERROR_RETURN;
}
err = usbd_device2interface_handle(dev, ATU_IFACE_IDX, &sc->atu_iface);
if (err) {
aprint_error_dev(self, "getting interface handle failed\n");
USB_ATTACH_ERROR_RETURN;
}
sc->atu_unit = device_unit(self);
sc->atu_udev = dev;
/*
* look up the radio_type for the device
* basically does the same as USB_MATCH
*/
for (i = 0; i < __arraycount(atu_devs); i++) {
struct atu_type *t = &atu_devs[i];
if (uaa->vendor == t->atu_vid &&
uaa->product == t->atu_pid) {
sc->atu_radio = t->atu_radio;
sc->atu_quirk = t->atu_quirk;
}
}
/*
* Check in the interface descriptor if we're in DFU mode
* If we're in DFU mode, we upload the external firmware
* If we're not, the PC must have rebooted without power-cycling
* the device.. I've tried this out, a reboot only requeres the
* external firmware to be reloaded :)
*
* Hmm. The at76c505a doesn't report a DFU descriptor when it's
* in DFU mode... Let's just try to get the opmode
*/
err = atu_get_opmode(sc, &mode);
DPRINTFN(20, ("%s: opmode: %d\n", USBDEVNAME(sc->atu_dev), mode));
if (err || (mode != MODE_NETCARD && mode != MODE_NOFLASHNETCARD)) {
DPRINTF(("%s: starting internal firmware download\n",
USBDEVNAME(sc->atu_dev)));
atu_internal_firmware(sc->atu_dev);
/*
* atu_internal_firmware will cause a reset of the device
* so we don't want to do any more configuration after this
* point.
*/
USB_ATTACH_SUCCESS_RETURN;
}
if (mode != MODE_NETCARD) {
DPRINTFN(15, ("%s: device needs external firmware\n",
USBDEVNAME(sc->atu_dev)));
if (mode != MODE_NOFLASHNETCARD) {
DPRINTF(("%s: unexpected opmode=%d\n",
USBDEVNAME(sc->atu_dev), mode));
}
/*
* There is no difference in opmode before and after external
* firmware upload with the SMC2662 V.4 . So instead we'll try
* to read the channel number. If we succeed, external
* firmwaremust have been already uploaded...
*/
if (sc->atu_radio != RadioIntersil) {
err = atu_get_mib(sc, MIB_PHY__CHANNEL, &channel);
if (!err) {
DPRINTF(("%s: external firmware has already"
" been downloaded\n",
USBDEVNAME(sc->atu_dev)));
atu_complete_attach(sc);
USB_ATTACH_SUCCESS_RETURN;
}
}
atu_external_firmware(sc->atu_dev);
/*
* atu_external_firmware will call atu_complete_attach after
* it's finished so we can just return.
*/
} else {
/* all the firmwares are in place, so complete the attach */
atu_complete_attach(sc);
}
USB_ATTACH_SUCCESS_RETURN;
}
void
atu_complete_attach(struct atu_softc *sc)
{
struct ieee80211com *ic = &sc->sc_ic;
struct ifnet *ifp = &sc->sc_if;
usb_interface_descriptor_t *id;
usb_endpoint_descriptor_t *ed;
usbd_status err;
int i;
#ifdef ATU_DEBUG
struct atu_fw fw;
#endif
id = usbd_get_interface_descriptor(sc->atu_iface);
/* Find endpoints. */
for (i = 0; i < id->bNumEndpoints; i++) {
ed = usbd_interface2endpoint_descriptor(sc->atu_iface, i);
if (!ed) {
DPRINTF(("%s: num_endp:%d\n", USBDEVNAME(sc->atu_dev),
sc->atu_iface->idesc->bNumEndpoints));
DPRINTF(("%s: couldn't get ep %d\n",
USBDEVNAME(sc->atu_dev), i));
return;
}
if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
sc->atu_ed[ATU_ENDPT_RX] = ed->bEndpointAddress;
} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
sc->atu_ed[ATU_ENDPT_TX] = ed->bEndpointAddress;
}
}
/* read device config & get MAC address */
err = atu_get_card_config(sc);
if (err) {
aprint_error("\n%s: could not get card cfg!\n",
USBDEVNAME(sc->atu_dev));
return;
}
#ifdef ATU_DEBUG
/* DEBUG : try to get firmware version */
err = atu_get_mib(sc, MIB_FW_VERSION, sizeof(fw), 0, (u_int8_t *)&fw);
if (!err) {
DPRINTFN(15, ("%s: firmware: maj:%d min:%d patch:%d "
"build:%d\n", USBDEVNAME(sc->atu_dev), fw.major, fw.minor,
fw.patch, fw.build));
} else {
DPRINTF(("%s: get firmware version failed\n",
USBDEVNAME(sc->atu_dev)));
}
#endif /* ATU_DEBUG */
/* Show the world our MAC address */
aprint_normal_dev(sc->atu_dev, "MAC address %s\n",
ether_sprintf(ic->ic_myaddr));
sc->atu_cdata.atu_tx_inuse = 0;
sc->atu_encrypt = ATU_WEP_OFF;
sc->atu_wepkeylen = ATU_WEP_104BITS;
sc->atu_wepkey = 0;
bzero(sc->atu_bssid, ETHER_ADDR_LEN);
sc->atu_channel = ATU_DEFAULT_CHANNEL;
sc->atu_desired_channel = IEEE80211_CHAN_ANY;
sc->atu_mode = INFRASTRUCTURE_MODE;
ic->ic_ifp = ifp;
ic->ic_phytype = IEEE80211_T_DS;
ic->ic_opmode = IEEE80211_M_STA;
ic->ic_state = IEEE80211_S_INIT;
#ifdef FIXME
ic->ic_caps = IEEE80211_C_IBSS | IEEE80211_C_WEP | IEEE80211_C_SCANALL;
#else
ic->ic_caps = IEEE80211_C_IBSS | IEEE80211_C_WEP;
#endif
i = 0;
ic->ic_sup_rates[IEEE80211_MODE_11B].rs_rates[i++] = 2;
ic->ic_sup_rates[IEEE80211_MODE_11B].rs_rates[i++] = 4;
ic->ic_sup_rates[IEEE80211_MODE_11B].rs_rates[i++] = 11;
ic->ic_sup_rates[IEEE80211_MODE_11B].rs_rates[i++] = 22;
ic->ic_sup_rates[IEEE80211_MODE_11B].rs_nrates = i;
for (i = 1; i <= 14; i++) {
ic->ic_channels[i].ic_flags = IEEE80211_CHAN_B |
IEEE80211_CHAN_PASSIVE;
ic->ic_channels[i].ic_freq = ieee80211_ieee2mhz(i,
ic->ic_channels[i].ic_flags);
}
ic->ic_ibss_chan = &ic->ic_channels[0];
ifp->if_softc = sc;
memcpy(ifp->if_xname, USBDEVNAME(sc->atu_dev), IFNAMSIZ);
ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
ifp->if_init = atu_init;
ifp->if_stop = atu_stop;
ifp->if_start = atu_start;
ifp->if_ioctl = atu_ioctl;
ifp->if_watchdog = atu_watchdog;
ifp->if_mtu = ATU_DEFAULT_MTU;
IFQ_SET_READY(&ifp->if_snd);
/* Call MI attach routine. */
if_attach(ifp);
ieee80211_ifattach(ic);
sc->sc_newstate = ic->ic_newstate;
ic->ic_newstate = atu_newstate;
/* setup ifmedia interface */
ieee80211_media_init(ic, atu_media_change, atu_media_status);
usb_init_task(&sc->sc_task, atu_task, sc);
sc->sc_state = ATU_S_OK;
}
USB_DETACH(atu)
{
USB_DETACH_START(atu, sc);
struct ifnet *ifp = &sc->sc_if;
DPRINTFN(10, ("%s: atu_detach state=%d\n", USBDEVNAME(sc->atu_dev),
sc->sc_state));
if (sc->sc_state != ATU_S_UNCONFIG) {
atu_stop(ifp, 1);
ieee80211_ifdetach(&sc->sc_ic);
if_detach(ifp);
}
return(0);
}
int
atu_activate(device_ptr_t self, enum devact act)
{
struct atu_softc *sc = device_private(self);
switch (act) {
case DVACT_ACTIVATE:
return (EOPNOTSUPP);
break;
case DVACT_DEACTIVATE:
if (sc->sc_state != ATU_S_UNCONFIG) {
if_deactivate(&sc->atu_ec.ec_if);
sc->sc_state = ATU_S_DEAD;
}
break;
}
return (0);
}
/*
* Initialize an RX descriptor and attach an MBUF cluster.
*/
int
atu_newbuf(struct atu_softc *sc, struct atu_chain *c, struct mbuf *m)
{
struct mbuf *m_new = NULL;
if (m == NULL) {
MGETHDR(m_new, M_DONTWAIT, MT_DATA);
if (m_new == NULL) {
DPRINTF(("%s: no memory for rx list\n",
USBDEVNAME(sc->atu_dev)));
return(ENOBUFS);
}
MCLGET(m_new, M_DONTWAIT);
if (!(m_new->m_flags & M_EXT)) {
DPRINTF(("%s: no memory for rx list\n",
USBDEVNAME(sc->atu_dev)));
m_freem(m_new);
return(ENOBUFS);
}
m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
} else {
m_new = m;
m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
m_new->m_data = m_new->m_ext.ext_buf;
}
c->atu_mbuf = m_new;
return(0);
}
int
atu_rx_list_init(struct atu_softc *sc)
{
struct atu_cdata *cd = &sc->atu_cdata;
struct atu_chain *c;
int i;
DPRINTFN(15, ("%s: atu_rx_list_init: enter\n",
USBDEVNAME(sc->atu_dev)));
for (i = 0; i < ATU_RX_LIST_CNT; i++) {
c = &cd->atu_rx_chain[i];
c->atu_sc = sc;
c->atu_idx = i;
if (c->atu_xfer == NULL) {
c->atu_xfer = usbd_alloc_xfer(sc->atu_udev);
if (c->atu_xfer == NULL)
return (ENOBUFS);
c->atu_buf = usbd_alloc_buffer(c->atu_xfer,
ATU_RX_BUFSZ);
if (c->atu_buf == NULL) /* XXX free xfer */
return (ENOBUFS);
if (atu_newbuf(sc, c, NULL) == ENOBUFS) /* XXX free? */
return(ENOBUFS);
}
}
return (0);
}
int
atu_tx_list_init(struct atu_softc *sc)
{
struct atu_cdata *cd = &sc->atu_cdata;
struct atu_chain *c;
int i;
DPRINTFN(15, ("%s: atu_tx_list_init\n",
USBDEVNAME(sc->atu_dev)));
SLIST_INIT(&cd->atu_tx_free);
sc->atu_cdata.atu_tx_inuse = 0;
for (i = 0; i < ATU_TX_LIST_CNT; i++) {
c = &cd->atu_tx_chain[i];
c->atu_sc = sc;
c->atu_idx = i;
if (c->atu_xfer == NULL) {
c->atu_xfer = usbd_alloc_xfer(sc->atu_udev);
if (c->atu_xfer == NULL)
return(ENOBUFS);
c->atu_mbuf = NULL;
c->atu_buf = usbd_alloc_buffer(c->atu_xfer,
ATU_TX_BUFSZ);
if (c->atu_buf == NULL)
return(ENOBUFS); /* XXX free xfer */
SLIST_INSERT_HEAD(&cd->atu_tx_free, c, atu_list);
}
}
return(0);
}
void
atu_xfer_list_free(struct atu_softc *sc, struct atu_chain *ch,
int listlen)
{
int i;
/* Free resources. */
for (i = 0; i < listlen; i++) {
if (ch[i].atu_buf != NULL)
ch[i].atu_buf = NULL;
if (ch[i].atu_mbuf != NULL) {
m_freem(ch[i].atu_mbuf);
ch[i].atu_mbuf = NULL;
}
if (ch[i].atu_xfer != NULL) {
usbd_free_xfer(ch[i].atu_xfer);
ch[i].atu_xfer = NULL;
}
}
}
/*
* A frame has been uploaded: pass the resulting mbuf chain up to
* the higher level protocols.
*/
void
atu_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
{
struct atu_chain *c = (struct atu_chain *)priv;
struct atu_softc *sc = c->atu_sc;
struct ieee80211com *ic = &sc->sc_ic;
struct ifnet *ifp = &sc->sc_if;
struct atu_rx_hdr *h;
struct ieee80211_frame_min *wh;
struct ieee80211_node *ni;
struct mbuf *m;
u_int32_t len;
int s;
DPRINTFN(25, ("%s: atu_rxeof\n", USBDEVNAME(sc->atu_dev)));
if (sc->sc_state != ATU_S_OK)
return;
if ((ifp->if_flags & (IFF_RUNNING|IFF_UP)) != (IFF_RUNNING|IFF_UP))
goto done;
if (status != USBD_NORMAL_COMPLETION) {
DPRINTF(("%s: status != USBD_NORMAL_COMPLETION\n",
USBDEVNAME(sc->atu_dev)));
if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) {
return;
}
#if 0
if (status == USBD_IOERROR) {
DPRINTF(("%s: rx: EEK! lost device?\n",
USBDEVNAME(sc->atu_dev)));
/*
* My experience with USBD_IOERROR is that trying to
* restart the transfer will always fail and we'll
* keep on looping restarting transfers untill someone
* pulls the plug of the device.
* So we don't restart the transfer, but just let it
* die... If someone knows of a situation where we can
* recover from USBD_IOERROR, let me know.
*/
splx(s);
return;
}
#endif /* 0 */
if (usbd_ratecheck(&sc->atu_rx_notice)) {
DPRINTF(("%s: usb error on rx: %s\n",
USBDEVNAME(sc->atu_dev), usbd_errstr(status)));
}
if (status == USBD_STALLED)
usbd_clear_endpoint_stall_async(
sc->atu_ep[ATU_ENDPT_RX]);
goto done;
}
usbd_get_xfer_status(xfer, NULL, NULL, &len, NULL);
if (len <= 1) {
DPRINTF(("%s: atu_rxeof: too short\n",
USBDEVNAME(sc->atu_dev)));
goto done;
}
h = (struct atu_rx_hdr *)c->atu_buf;
len = UGETW(h->length) - 4; /* XXX magic number */
m = c->atu_mbuf;
memcpy(mtod(m, char *), c->atu_buf + ATU_RX_HDRLEN, len);
m->m_pkthdr.rcvif = ifp;
m->m_pkthdr.len = m->m_len = len;
wh = mtod(m, struct ieee80211_frame_min *);
ni = ieee80211_find_rxnode(ic, wh);
ifp->if_ipackets++;
s = splnet();
if (atu_newbuf(sc, c, NULL) == ENOBUFS) {
ifp->if_ierrors++;
goto done1; /* XXX if we can't allocate, why restart it? */
}
if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
/*
* WEP is decrypted by hardware. Clear WEP bit
* header for ieee80211_input().
*/
wh->i_fc[1] &= ~IEEE80211_FC1_WEP;
}
ieee80211_input(ic, m, ni, h->rssi, UGETDW(h->rx_time));
ieee80211_free_node(ni);
done1:
splx(s);
done:
/* Setup new transfer. */
usbd_setup_xfer(c->atu_xfer, sc->atu_ep[ATU_ENDPT_RX], c, c->atu_buf,
ATU_RX_BUFSZ, USBD_SHORT_XFER_OK | USBD_NO_COPY, USBD_NO_TIMEOUT,
atu_rxeof);
usbd_transfer(c->atu_xfer);
}
/*
* A frame was downloaded to the chip. It's safe for us to clean up
* the list buffers.
*/
void
atu_txeof(usbd_xfer_handle xfer, usbd_private_handle priv,
usbd_status status)
{
struct atu_chain *c = (struct atu_chain *)priv;
struct atu_softc *sc = c->atu_sc;
struct ifnet *ifp = &sc->sc_if;
usbd_status err;
int s;
DPRINTFN(25, ("%s: atu_txeof status=%d\n", USBDEVNAME(sc->atu_dev),
status));
if (c->atu_mbuf) {
m_freem(c->atu_mbuf);
c->atu_mbuf = NULL;
}
if (status != USBD_NORMAL_COMPLETION) {
if (status == USBD_NOT_STARTED || status == USBD_CANCELLED)
return;
DPRINTF(("%s: usb error on tx: %s\n", USBDEVNAME(sc->atu_dev),
usbd_errstr(status)));
if (status == USBD_STALLED)
usbd_clear_endpoint_stall_async(sc->atu_ep[ATU_ENDPT_TX]);
return;
}
usbd_get_xfer_status(c->atu_xfer, NULL, NULL, NULL, &err);
if (err)
ifp->if_oerrors++;
else
ifp->if_opackets++;
s = splnet();
SLIST_INSERT_HEAD(&sc->atu_cdata.atu_tx_free, c, atu_list);
sc->atu_cdata.atu_tx_inuse--;
if (sc->atu_cdata.atu_tx_inuse == 0)
ifp->if_timer = 0;
ifp->if_flags &= ~IFF_OACTIVE;
splx(s);
atu_start(ifp);
}
u_int8_t
atu_calculate_padding(int size)
{
size %= 64;
if (size < 50)
return (50 - size);
if (size >=61)
return (64 + 50 - size);
return (0);
}
int
atu_tx_start(struct atu_softc *sc, struct ieee80211_node *ni,
struct atu_chain *c, struct mbuf *m)
{
int len;
struct atu_tx_hdr *h;
usbd_status err;
u_int8_t pad;
DPRINTFN(25, ("%s: atu_tx_start\n", USBDEVNAME(sc->atu_dev)));
/* Don't try to send when we're shutting down the driver */
if (sc->sc_state != ATU_S_OK) {
m_freem(m);
return(EIO);
}
/*
* Copy the mbuf data into a contiguous buffer, leaving
* enough room for the atmel headers
*/
len = m->m_pkthdr.len;
m_copydata(m, 0, m->m_pkthdr.len, c->atu_buf + ATU_TX_HDRLEN);
h = (struct atu_tx_hdr *)c->atu_buf;
memset(h, 0, ATU_TX_HDRLEN);
USETW(h->length, len);
h->tx_rate = 4; /* XXX rate = auto */
len += ATU_TX_HDRLEN;
pad = atu_calculate_padding(len);
len += pad;
h->padding = pad;
c->atu_length = len;
c->atu_mbuf = m;
usbd_setup_xfer(c->atu_xfer, sc->atu_ep[ATU_ENDPT_TX],
c, c->atu_buf, c->atu_length, USBD_NO_COPY, ATU_TX_TIMEOUT,
atu_txeof);
/* Let's get this thing into the air! */
c->atu_in_xfer = 1;
err = usbd_transfer(c->atu_xfer);
if (err != USBD_IN_PROGRESS) {
DPRINTFN(25, ("%s: atu_tx_start, err=%d",
USBDEVNAME(sc->atu_dev), err));
c->atu_mbuf = NULL;
m_freem(m);
return(EIO);
}
return (0);
}
void
atu_start(struct ifnet *ifp)
{
struct atu_softc *sc = ifp->if_softc;
struct ieee80211com *ic = &sc->sc_ic;
struct atu_cdata *cd = &sc->atu_cdata;
struct ieee80211_node *ni;
struct atu_chain *c;
struct mbuf *m = NULL;
int s;
DPRINTFN(25, ("%s: atu_start: enter\n", USBDEVNAME(sc->atu_dev)));
if ((ifp->if_flags & IFF_RUNNING) == 0) {
return;
}
if (ifp->if_flags & IFF_OACTIVE) {
DPRINTFN(30, ("%s: atu_start: IFF_OACTIVE\n",
USBDEVNAME(sc->atu_dev)));
return;
}
for (;;) {
/* grab a TX buffer */
s = splnet();
c = SLIST_FIRST(&cd->atu_tx_free);
if (c != NULL) {
SLIST_REMOVE_HEAD(&cd->atu_tx_free, atu_list);
cd->atu_tx_inuse++;
if (cd->atu_tx_inuse == ATU_TX_LIST_CNT)
ifp->if_flags |= IFF_OACTIVE;
}
splx(s);
if (c == NULL) {
DPRINTFN(10, ("%s: out of tx xfers\n",
USBDEVNAME(sc->atu_dev)));
ifp->if_flags |= IFF_OACTIVE;
break;
}
/*
* Poll the management queue for frames, it has priority over
* normal data frames.
*/
IF_DEQUEUE(&ic->ic_mgtq, m);
if (m == NULL) {
DPRINTFN(10, ("%s: atu_start: data packet\n",
USBDEVNAME(sc->atu_dev)));
if (ic->ic_state != IEEE80211_S_RUN) {
DPRINTFN(25, ("%s: no data till running\n",
USBDEVNAME(sc->atu_dev)));
/* put the xfer back on the list */
s = splnet();
SLIST_INSERT_HEAD(&cd->atu_tx_free, c,
atu_list);
cd->atu_tx_inuse--;
splx(s);
break;
}
IFQ_DEQUEUE(&ifp->if_snd, m);
if (m == NULL) {
DPRINTFN(25, ("%s: nothing to send\n",
USBDEVNAME(sc->atu_dev)));
s = splnet();
SLIST_INSERT_HEAD(&cd->atu_tx_free, c,
atu_list);
cd->atu_tx_inuse--;
splx(s);
break;
}
#if NBPFILTER > 0
if (ifp->if_bpf)
bpf_mtap(ifp->if_bpf, m);
#endif
ni = ieee80211_find_txnode(ic,
mtod(m, struct ether_header *)->ether_dhost);
if (ni == NULL) {
m_freem(m);
goto bad;
}
m = ieee80211_encap(ic, m, ni);
if (m == NULL)
goto bad;
} else {
DPRINTFN(25, ("%s: atu_start: mgmt packet\n",
USBDEVNAME(sc->atu_dev)));
/*
* Hack! The referenced node pointer is in the
* rcvif field of the packet header. This is
* placed there by ieee80211_mgmt_output because
* we need to hold the reference with the frame
* and there's no other way (other than packet
* tags which we consider too expensive to use)
* to pass it along.
*/
ni = (struct ieee80211_node *)m->m_pkthdr.rcvif;
m->m_pkthdr.rcvif = NULL;
/* sc->sc_stats.ast_tx_mgmt++; */
}
#if NBPFILTER > 0
if (ic->ic_rawbpf)
bpf_mtap(ic->ic_rawbpf, m);
#endif
if (atu_tx_start(sc, ni, c, m)) {
bad:
s = splnet();
SLIST_INSERT_HEAD(&cd->atu_tx_free, c,
atu_list);
cd->atu_tx_inuse--;
splx(s);
/* ifp_if_oerrors++; */
if (ni != NULL)
ieee80211_free_node(ni);
continue;
}
ifp->if_timer = 5;
}
}
int
atu_init(struct ifnet *ifp)
{
struct atu_softc *sc = ifp->if_softc;
struct ieee80211com *ic = &sc->sc_ic;
struct atu_chain *c;
usbd_status err;
int i, s;
s = splnet();
DPRINTFN(10, ("%s: atu_init\n", USBDEVNAME(sc->atu_dev)));
if (ifp->if_flags & IFF_RUNNING) {
splx(s);
return(0);
}
/* Init TX ring */
if (atu_tx_list_init(sc))
printf("%s: tx list init failed\n", USBDEVNAME(sc->atu_dev));
/* Init RX ring */
if (atu_rx_list_init(sc))
printf("%s: rx list init failed\n", USBDEVNAME(sc->atu_dev));
/* Load the multicast filter. */
/*atu_setmulti(sc); */
/* Open RX and TX pipes. */
err = usbd_open_pipe(sc->atu_iface, sc->atu_ed[ATU_ENDPT_RX],
USBD_EXCLUSIVE_USE, &sc->atu_ep[ATU_ENDPT_RX]);
if (err) {
DPRINTF(("%s: open rx pipe failed: %s\n",
USBDEVNAME(sc->atu_dev), usbd_errstr(err)));
splx(s);
return(EIO);
}
err = usbd_open_pipe(sc->atu_iface, sc->atu_ed[ATU_ENDPT_TX],
USBD_EXCLUSIVE_USE, &sc->atu_ep[ATU_ENDPT_TX]);
if (err) {
DPRINTF(("%s: open tx pipe failed: %s\n",
USBDEVNAME(sc->atu_dev), usbd_errstr(err)));
splx(s);
return(EIO);
}
/* Start up the receive pipe. */
for (i = 0; i < ATU_RX_LIST_CNT; i++) {
c = &sc->atu_cdata.atu_rx_chain[i];
usbd_setup_xfer(c->atu_xfer, sc->atu_ep[ATU_ENDPT_RX], c,
c->atu_buf, ATU_RX_BUFSZ, USBD_SHORT_XFER_OK | USBD_NO_COPY,
USBD_NO_TIMEOUT, atu_rxeof);
usbd_transfer(c->atu_xfer);
}
DPRINTFN(10, ("%s: starting up using MAC=%s\n",
USBDEVNAME(sc->atu_dev), ether_sprintf(ic->ic_myaddr)));
/* Do initial setup */
err = atu_initial_config(sc);
if (err) {
DPRINTF(("%s: initial config failed!\n",
USBDEVNAME(sc->atu_dev)));
splx(s);
return(EIO);
}
DPRINTFN(10, ("%s: initialised transceiver\n",
USBDEVNAME(sc->atu_dev)));
/* sc->atu_rxfilt = ATU_RXFILT_UNICAST|ATU_RXFILT_BROADCAST; */
/* If we want promiscuous mode, set the allframes bit. */
/*
if (ifp->if_flags & IFF_PROMISC)
sc->atu_rxfilt |= ATU_RXFILT_PROMISC;
*/
ifp->if_flags |= IFF_RUNNING;
ifp->if_flags &= ~IFF_OACTIVE;
splx(s);
/* XXX the following HAS to be replaced */
s = splnet();
err = ieee80211_new_state(ic, IEEE80211_S_SCAN, -1);
if (err) {
DPRINTFN(1, ("%s: atu_init: error calling "
"ieee80211_net_state", USBDEVNAME(sc->atu_dev)));
}
splx(s);
return 0;
}
#ifdef ATU_DEBUG
void
atu_debug_print(struct atu_softc *sc)
{
usbd_status err;
u_int8_t tmp[32];
/* DEBUG */
if ((err = atu_get_mib(sc, MIB_MAC_MGMT__CURRENT_BSSID, tmp)))
return;
DPRINTF(("%s: DEBUG: current BSSID=%s\n", USBDEVNAME(sc->atu_dev),
ether_sprintf(tmp)));
if ((err = atu_get_mib(sc, MIB_MAC_MGMT__BEACON_PERIOD, tmp)))
return;
DPRINTF(("%s: DEBUG: beacon period=%d\n", USBDEVNAME(sc->atu_dev),
tmp[0]));
if ((err = atu_get_mib(sc, MIB_MAC_WEP__PRIVACY_INVOKED, tmp)))
return;
DPRINTF(("%s: DEBUG: privacy invoked=%d\n", USBDEVNAME(sc->atu_dev),
tmp[0]));
if ((err = atu_get_mib(sc, MIB_MAC_WEP__ENCR_LEVEL, tmp)))
return;
DPRINTF(("%s: DEBUG: encr_level=%d\n", USBDEVNAME(sc->atu_dev),
tmp[0]));
if ((err = atu_get_mib(sc, MIB_MAC_WEP__ICV_ERROR_COUNT, tmp)))
return;
DPRINTF(("%s: DEBUG: icv error count=%d\n", USBDEVNAME(sc->atu_dev),
*(short *)tmp));
if ((err = atu_get_mib(sc, MIB_MAC_WEP__EXCLUDED_COUNT, tmp)))
return;
DPRINTF(("%s: DEBUG: wep excluded count=%d\n",
USBDEVNAME(sc->atu_dev), *(short *)tmp));
if ((err = atu_get_mib(sc, MIB_MAC_MGMT__POWER_MODE, tmp)))
return;
DPRINTF(("%s: DEBUG: power mode=%d\n", USBDEVNAME(sc->atu_dev),
tmp[0]));
if ((err = atu_get_mib(sc, MIB_PHY__CHANNEL, tmp)))
return;
DPRINTF(("%s: DEBUG: channel=%d\n", USBDEVNAME(sc->atu_dev), tmp[0]));
if ((err = atu_get_mib(sc, MIB_PHY__REG_DOMAIN, tmp)))
return;
DPRINTF(("%s: DEBUG: reg domain=%d\n", USBDEVNAME(sc->atu_dev),
tmp[0]));
if ((err = atu_get_mib(sc, MIB_LOCAL__SSID_SIZE, tmp)))
return;
DPRINTF(("%s: DEBUG: ssid size=%d\n", USBDEVNAME(sc->atu_dev),
tmp[0]));
if ((err = atu_get_mib(sc, MIB_LOCAL__BEACON_ENABLE, tmp)))
return;
DPRINTF(("%s: DEBUG: beacon enable=%d\n", USBDEVNAME(sc->atu_dev),
tmp[0]));
if ((err = atu_get_mib(sc, MIB_LOCAL__AUTO_RATE_FALLBACK, tmp)))
return;
DPRINTF(("%s: DEBUG: auto rate fallback=%d\n",
USBDEVNAME(sc->atu_dev), tmp[0]));
if ((err = atu_get_mib(sc, MIB_MAC_ADDR__ADDR, tmp)))
return;
DPRINTF(("%s: DEBUG: mac addr=%s\n", USBDEVNAME(sc->atu_dev),
ether_sprintf(tmp)));
if ((err = atu_get_mib(sc, MIB_MAC__DESIRED_SSID, tmp)))
return;
DPRINTF(("%s: DEBUG: desired ssid=%s\n", USBDEVNAME(sc->atu_dev),
tmp));
if ((err = atu_get_mib(sc, MIB_MAC_MGMT__CURRENT_ESSID, tmp)))
return;
DPRINTF(("%s: DEBUG: current ESSID=%s\n", USBDEVNAME(sc->atu_dev),
tmp));
}
#endif /* ATU_DEBUG */
int
atu_ioctl(struct ifnet *ifp, u_long command, void *data)
{
struct atu_softc *sc = ifp->if_softc;
struct ifreq *ifr = (struct ifreq *)data;
struct ieee80211com *ic = &sc->sc_ic;
int err = 0, s;
s = splnet();
switch (command) {
case SIOCSIFMEDIA:
case SIOCGIFMEDIA:
err = ifmedia_ioctl(ifp, ifr, &ic->ic_media, command);
break;
default:
DPRINTFN(15, ("%s: ieee80211_ioctl (%lu)\n",
USBDEVNAME(sc->atu_dev), command));
err = ieee80211_ioctl(ic, command, data);
break;
}
if (err == ENETRESET) {
if ((ifp->if_flags & (IFF_RUNNING|IFF_UP)) ==
(IFF_RUNNING|IFF_UP)) {
DPRINTF(("%s: atu_ioctl(): netreset %lu\n",
USBDEVNAME(sc->atu_dev), command));
ieee80211_new_state(ic, IEEE80211_S_INIT, -1);
atu_initial_config(sc);
ieee80211_new_state(ic, IEEE80211_S_SCAN, -1);
}
err = 0;
}
splx(s);
return (err);
}
void
atu_watchdog(struct ifnet *ifp)
{
struct atu_softc *sc = ifp->if_softc;
struct atu_chain *c;
usbd_status stat;
int cnt, s;
DPRINTF(("%s: atu_watchdog\n", USBDEVNAME(sc->atu_dev)));
ifp->if_timer = 0;
if (sc->sc_state != ATU_S_OK || (ifp->if_flags & IFF_RUNNING) == 0)
return;
sc = ifp->if_softc;
s = splnet();
ifp->if_oerrors++;
DPRINTF(("%s: watchdog timeout\n", USBDEVNAME(sc->atu_dev)));
/*
* TODO:
* we should change this since we have multiple TX tranfers...
*/
for (cnt = 0; cnt < ATU_TX_LIST_CNT; cnt++) {
c = &sc->atu_cdata.atu_tx_chain[cnt];
if (c->atu_in_xfer) {
usbd_get_xfer_status(c->atu_xfer, NULL, NULL, NULL,
&stat);
atu_txeof(c->atu_xfer, c, stat);
}
}
if (!IFQ_IS_EMPTY(&ifp->if_snd))
atu_start(ifp);
splx(s);
ieee80211_watchdog(&sc->sc_ic);
}
/*
* Stop the adapter and free any mbufs allocated to the
* RX and TX lists.
*/
void
atu_stop(struct ifnet *ifp, int disable)
{
struct atu_softc *sc = ifp->if_softc;
struct ieee80211com *ic = &sc->sc_ic;
struct atu_cdata *cd;
usbd_status err;
int s;
s = splnet();
ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
ifp->if_timer = 0;
usb_rem_task(sc->atu_udev, &sc->sc_task);
ieee80211_new_state(ic, IEEE80211_S_INIT, -1);
/* Stop transfers. */
if (sc->atu_ep[ATU_ENDPT_RX] != NULL) {
err = usbd_abort_pipe(sc->atu_ep[ATU_ENDPT_RX]);
if (err) {
DPRINTF(("%s: abort rx pipe failed: %s\n",
USBDEVNAME(sc->atu_dev), usbd_errstr(err)));
}
err = usbd_close_pipe(sc->atu_ep[ATU_ENDPT_RX]);
if (err) {
DPRINTF(("%s: close rx pipe failed: %s\n",
USBDEVNAME(sc->atu_dev), usbd_errstr(err)));
}
sc->atu_ep[ATU_ENDPT_RX] = NULL;
}
if (sc->atu_ep[ATU_ENDPT_TX] != NULL) {
err = usbd_abort_pipe(sc->atu_ep[ATU_ENDPT_TX]);
if (err) {
DPRINTF(("%s: abort tx pipe failed: %s\n",
USBDEVNAME(sc->atu_dev), usbd_errstr(err)));
}
err = usbd_close_pipe(sc->atu_ep[ATU_ENDPT_TX]);
if (err) {
DPRINTF(("%s: close tx pipe failed: %s\n",
USBDEVNAME(sc->atu_dev), usbd_errstr(err)));
}
sc->atu_ep[ATU_ENDPT_TX] = NULL;
}
/* Free RX/TX/MGMT list resources. */
cd = &sc->atu_cdata;
atu_xfer_list_free(sc, cd->atu_rx_chain, ATU_RX_LIST_CNT);
atu_xfer_list_free(sc, cd->atu_tx_chain, ATU_TX_LIST_CNT);
/* Let's be nice and turn off the radio before we leave */
atu_switch_radio(sc, 0);
splx(s);
}
Reference in New Issue View Git Blame Copy Permalink