wpi.c revision 0dc2366f7b9f9f36e10909b1e95edbf2a261c2ac
/*
* Copyright 2010 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
* Copyright (c) 2006
* Damien Bergamini <damien.bergamini@free.fr>
*
* 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.
*/
/*
* Driver for Intel PRO/Wireless 3945ABG 802.11 network adapters.
*/
#include <sys/types.h>
#include <sys/byteorder.h>
#include <sys/conf.h>
#include <sys/cmn_err.h>
#include <sys/stat.h>
#include <sys/ddi.h>
#include <sys/sunddi.h>
#include <sys/strsubr.h>
#include <sys/ethernet.h>
#include <inet/common.h>
#include <inet/nd.h>
#include <inet/mi.h>
#include <sys/note.h>
#include <sys/stream.h>
#include <sys/strsun.h>
#include <sys/modctl.h>
#include <sys/devops.h>
#include <sys/dlpi.h>
#include <sys/mac_provider.h>
#include <sys/mac_wifi.h>
#include <sys/net80211.h>
#include <sys/net80211_proto.h>
#include <sys/varargs.h>
#include <sys/policy.h>
#include <sys/pci.h>
#include "wpireg.h"
#include "wpivar.h"
#include <inet/wifi_ioctl.h>
#ifdef DEBUG
#define WPI_DEBUG_80211 (1 << 0)
#define WPI_DEBUG_CMD (1 << 1)
#define WPI_DEBUG_DMA (1 << 2)
#define WPI_DEBUG_EEPROM (1 << 3)
#define WPI_DEBUG_FW (1 << 4)
#define WPI_DEBUG_HW (1 << 5)
#define WPI_DEBUG_INTR (1 << 6)
#define WPI_DEBUG_MRR (1 << 7)
#define WPI_DEBUG_PIO (1 << 8)
#define WPI_DEBUG_RX (1 << 9)
#define WPI_DEBUG_SCAN (1 << 10)
#define WPI_DEBUG_TX (1 << 11)
#define WPI_DEBUG_RATECTL (1 << 12)
#define WPI_DEBUG_RADIO (1 << 13)
#define WPI_DEBUG_RESUME (1 << 14)
uint32_t wpi_dbg_flags = 0;
#define WPI_DBG(x) \
wpi_dbg x
#else
#define WPI_DBG(x)
#endif
static void *wpi_soft_state_p = NULL;
static uint8_t wpi_fw_bin [] = {
#include "fw-wpi/ipw3945.ucode.hex"
};
/* DMA attributes for a shared page */
static ddi_dma_attr_t sh_dma_attr = {
DMA_ATTR_V0, /* version of this structure */
0, /* lowest usable address */
0xffffffffU, /* highest usable address */
0xffffffffU, /* maximum DMAable byte count */
0x1000, /* alignment in bytes */
0x1000, /* burst sizes (any?) */
1, /* minimum transfer */
0xffffffffU, /* maximum transfer */
0xffffffffU, /* maximum segment length */
1, /* maximum number of segments */
1, /* granularity */
0, /* flags (reserved) */
};
/* DMA attributes for a ring descriptor */
static ddi_dma_attr_t ring_desc_dma_attr = {
DMA_ATTR_V0, /* version of this structure */
0, /* lowest usable address */
0xffffffffU, /* highest usable address */
0xffffffffU, /* maximum DMAable byte count */
0x4000, /* alignment in bytes */
0x100, /* burst sizes (any?) */
1, /* minimum transfer */
0xffffffffU, /* maximum transfer */
0xffffffffU, /* maximum segment length */
1, /* maximum number of segments */
1, /* granularity */
0, /* flags (reserved) */
};
/* DMA attributes for a tx cmd */
static ddi_dma_attr_t tx_cmd_dma_attr = {
DMA_ATTR_V0, /* version of this structure */
0, /* lowest usable address */
0xffffffffU, /* highest usable address */
0xffffffffU, /* maximum DMAable byte count */
4, /* alignment in bytes */
0x100, /* burst sizes (any?) */
1, /* minimum transfer */
0xffffffffU, /* maximum transfer */
0xffffffffU, /* maximum segment length */
1, /* maximum number of segments */
1, /* granularity */
0, /* flags (reserved) */
};
/* DMA attributes for a rx buffer */
static ddi_dma_attr_t rx_buffer_dma_attr = {
DMA_ATTR_V0, /* version of this structure */
0, /* lowest usable address */
0xffffffffU, /* highest usable address */
0xffffffffU, /* maximum DMAable byte count */
1, /* alignment in bytes */
0x100, /* burst sizes (any?) */
1, /* minimum transfer */
0xffffffffU, /* maximum transfer */
0xffffffffU, /* maximum segment length */
1, /* maximum number of segments */
1, /* granularity */
0, /* flags (reserved) */
};
/*
* DMA attributes for a tx buffer.
* the maximum number of segments is 4 for the hardware.
* now all the wifi drivers put the whole frame in a single
* descriptor, so we define the maximum number of segments 4,
* just the same as the rx_buffer. we consider leverage the HW
* ability in the future, that is why we don't define rx and tx
* buffer_dma_attr as the same.
*/
static ddi_dma_attr_t tx_buffer_dma_attr = {
DMA_ATTR_V0, /* version of this structure */
0, /* lowest usable address */
0xffffffffU, /* highest usable address */
0xffffffffU, /* maximum DMAable byte count */
1, /* alignment in bytes */
0x100, /* burst sizes (any?) */
1, /* minimum transfer */
0xffffffffU, /* maximum transfer */
0xffffffffU, /* maximum segment length */
1, /* maximum number of segments */
1, /* granularity */
0, /* flags (reserved) */
};
/* DMA attributes for a load firmware */
static ddi_dma_attr_t fw_buffer_dma_attr = {
DMA_ATTR_V0, /* version of this structure */
0, /* lowest usable address */
0xffffffffU, /* highest usable address */
0x7fffffff, /* maximum DMAable byte count */
4, /* alignment in bytes */
0x100, /* burst sizes (any?) */
1, /* minimum transfer */
0xffffffffU, /* maximum transfer */
0xffffffffU, /* maximum segment length */
4, /* maximum number of segments */
1, /* granularity */
0, /* flags (reserved) */
};
/* regs access attributes */
static ddi_device_acc_attr_t wpi_reg_accattr = {
DDI_DEVICE_ATTR_V0,
DDI_STRUCTURE_LE_ACC,
DDI_STRICTORDER_ACC,
DDI_DEFAULT_ACC
};
/* DMA access attributes */
static ddi_device_acc_attr_t wpi_dma_accattr = {
DDI_DEVICE_ATTR_V0,
DDI_NEVERSWAP_ACC,
DDI_STRICTORDER_ACC,
DDI_DEFAULT_ACC
};
static int wpi_ring_init(wpi_sc_t *);
static void wpi_ring_free(wpi_sc_t *);
static int wpi_alloc_shared(wpi_sc_t *);
static void wpi_free_shared(wpi_sc_t *);
static int wpi_alloc_fw_dma(wpi_sc_t *);
static void wpi_free_fw_dma(wpi_sc_t *);
static int wpi_alloc_rx_ring(wpi_sc_t *);
static void wpi_reset_rx_ring(wpi_sc_t *);
static void wpi_free_rx_ring(wpi_sc_t *);
static int wpi_alloc_tx_ring(wpi_sc_t *, wpi_tx_ring_t *, int, int);
static void wpi_reset_tx_ring(wpi_sc_t *, wpi_tx_ring_t *);
static void wpi_free_tx_ring(wpi_sc_t *, wpi_tx_ring_t *);
static ieee80211_node_t *wpi_node_alloc(ieee80211com_t *);
static void wpi_node_free(ieee80211_node_t *);
static int wpi_newstate(ieee80211com_t *, enum ieee80211_state, int);
static int wpi_key_set(ieee80211com_t *, const struct ieee80211_key *,
const uint8_t mac[IEEE80211_ADDR_LEN]);
static void wpi_mem_lock(wpi_sc_t *);
static void wpi_mem_unlock(wpi_sc_t *);
static uint32_t wpi_mem_read(wpi_sc_t *, uint16_t);
static void wpi_mem_write(wpi_sc_t *, uint16_t, uint32_t);
static void wpi_mem_write_region_4(wpi_sc_t *, uint16_t,
const uint32_t *, int);
static uint16_t wpi_read_prom_word(wpi_sc_t *, uint32_t);
static int wpi_load_microcode(wpi_sc_t *);
static int wpi_load_firmware(wpi_sc_t *, uint32_t);
static void wpi_rx_intr(wpi_sc_t *, wpi_rx_desc_t *,
wpi_rx_data_t *);
static void wpi_tx_intr(wpi_sc_t *, wpi_rx_desc_t *,
wpi_rx_data_t *);
static void wpi_cmd_intr(wpi_sc_t *, wpi_rx_desc_t *);
static uint_t wpi_intr(caddr_t);
static uint_t wpi_notif_softintr(caddr_t);
static uint8_t wpi_plcp_signal(int);
static void wpi_read_eeprom(wpi_sc_t *);
static int wpi_cmd(wpi_sc_t *, int, const void *, int, int);
static int wpi_mrr_setup(wpi_sc_t *);
static void wpi_set_led(wpi_sc_t *, uint8_t, uint8_t, uint8_t);
static int wpi_auth(wpi_sc_t *);
static int wpi_scan(wpi_sc_t *);
static int wpi_config(wpi_sc_t *);
static void wpi_stop_master(wpi_sc_t *);
static int wpi_power_up(wpi_sc_t *);
static int wpi_reset(wpi_sc_t *);
static void wpi_hw_config(wpi_sc_t *);
static int wpi_init(wpi_sc_t *);
static void wpi_stop(wpi_sc_t *);
static int wpi_quiesce(dev_info_t *dip);
static void wpi_amrr_init(wpi_amrr_t *);
static void wpi_amrr_timeout(wpi_sc_t *);
static void wpi_amrr_ratectl(void *, ieee80211_node_t *);
static int wpi_attach(dev_info_t *dip, ddi_attach_cmd_t cmd);
static int wpi_detach(dev_info_t *dip, ddi_detach_cmd_t cmd);
/*
* GLD specific operations
*/
static int wpi_m_stat(void *arg, uint_t stat, uint64_t *val);
static int wpi_m_start(void *arg);
static void wpi_m_stop(void *arg);
static int wpi_m_unicst(void *arg, const uint8_t *macaddr);
static int wpi_m_multicst(void *arg, boolean_t add, const uint8_t *m);
static int wpi_m_promisc(void *arg, boolean_t on);
static mblk_t *wpi_m_tx(void *arg, mblk_t *mp);
static void wpi_m_ioctl(void *arg, queue_t *wq, mblk_t *mp);
static int wpi_m_setprop(void *arg, const char *pr_name,
mac_prop_id_t wldp_pr_num, uint_t wldp_length, const void *wldp_buf);
static int wpi_m_getprop(void *arg, const char *pr_name,
mac_prop_id_t wldp_pr_num, uint_t wldp_lenth, void *wldp_buf);
static void wpi_m_propinfo(void *arg, const char *pr_name,
mac_prop_id_t wldp_pr_num, mac_prop_info_handle_t mph);
static void wpi_destroy_locks(wpi_sc_t *sc);
static int wpi_send(ieee80211com_t *ic, mblk_t *mp, uint8_t type);
static void wpi_thread(wpi_sc_t *sc);
static int wpi_fast_recover(wpi_sc_t *sc);
/*
* Supported rates for 802.11a/b/g modes (in 500Kbps unit).
*/
static const struct ieee80211_rateset wpi_rateset_11b =
{ 4, { 2, 4, 11, 22 } };
static const struct ieee80211_rateset wpi_rateset_11g =
{ 12, { 2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108 } };
static const uint8_t wpi_ridx_to_signal[] = {
/* OFDM: IEEE Std 802.11a-1999, pp. 14 Table 80 */
/* R1-R4 (ral/ural is R4-R1) */
0xd, 0xf, 0x5, 0x7, 0x9, 0xb, 0x1, 0x3,
/* CCK: device-dependent */
10, 20, 55, 110
};
/*
* For mfthread only
*/
extern pri_t minclsyspri;
/*
* Module Loading Data & Entry Points
*/
DDI_DEFINE_STREAM_OPS(wpi_devops, nulldev, nulldev, wpi_attach,
wpi_detach, nodev, NULL, D_MP, NULL, wpi_quiesce);
static struct modldrv wpi_modldrv = {
&mod_driverops,
"Intel(R) PRO/Wireless 3945ABG driver",
&wpi_devops
};
static struct modlinkage wpi_modlinkage = {
MODREV_1,
&wpi_modldrv,
NULL
};
int
_init(void)
{
int status;
status = ddi_soft_state_init(&wpi_soft_state_p,
sizeof (wpi_sc_t), 1);
if (status != DDI_SUCCESS)
return (status);
mac_init_ops(&wpi_devops, "wpi");
status = mod_install(&wpi_modlinkage);
if (status != DDI_SUCCESS) {
mac_fini_ops(&wpi_devops);
ddi_soft_state_fini(&wpi_soft_state_p);
}
return (status);
}
int
_fini(void)
{
int status;
status = mod_remove(&wpi_modlinkage);
if (status == DDI_SUCCESS) {
mac_fini_ops(&wpi_devops);
ddi_soft_state_fini(&wpi_soft_state_p);
}
return (status);
}
int
_info(struct modinfo *mip)
{
return (mod_info(&wpi_modlinkage, mip));
}
/*
* Mac Call Back entries
*/
mac_callbacks_t wpi_m_callbacks = {
MC_IOCTL | MC_SETPROP | MC_GETPROP | MC_PROPINFO,
wpi_m_stat,
wpi_m_start,
wpi_m_stop,
wpi_m_promisc,
wpi_m_multicst,
wpi_m_unicst,
wpi_m_tx,
NULL,
wpi_m_ioctl,
NULL,
NULL,
NULL,
wpi_m_setprop,
wpi_m_getprop,
wpi_m_propinfo
};
#ifdef DEBUG
void
wpi_dbg(uint32_t flags, const char *fmt, ...)
{
va_list ap;
if (flags & wpi_dbg_flags) {
va_start(ap, fmt);
vcmn_err(CE_NOTE, fmt, ap);
va_end(ap);
}
}
#endif
/*
* device operations
*/
int
wpi_attach(dev_info_t *dip, ddi_attach_cmd_t cmd)
{
wpi_sc_t *sc;
ddi_acc_handle_t cfg_handle;
caddr_t cfg_base;
ieee80211com_t *ic;
int instance, err, i;
char strbuf[32];
wifi_data_t wd = { 0 };
mac_register_t *macp;
switch (cmd) {
case DDI_ATTACH:
break;
case DDI_RESUME:
sc = ddi_get_soft_state(wpi_soft_state_p,
ddi_get_instance(dip));
ASSERT(sc != NULL);
mutex_enter(&sc->sc_glock);
sc->sc_flags &= ~WPI_F_SUSPEND;
mutex_exit(&sc->sc_glock);
if (sc->sc_flags & WPI_F_RUNNING)
(void) wpi_init(sc);
mutex_enter(&sc->sc_glock);
sc->sc_flags |= WPI_F_LAZY_RESUME;
mutex_exit(&sc->sc_glock);
WPI_DBG((WPI_DEBUG_RESUME, "wpi: resume \n"));
return (DDI_SUCCESS);
default:
err = DDI_FAILURE;
goto attach_fail1;
}
instance = ddi_get_instance(dip);
err = ddi_soft_state_zalloc(wpi_soft_state_p, instance);
if (err != DDI_SUCCESS) {
cmn_err(CE_WARN,
"wpi_attach(): failed to allocate soft state\n");
goto attach_fail1;
}
sc = ddi_get_soft_state(wpi_soft_state_p, instance);
sc->sc_dip = dip;
err = ddi_regs_map_setup(dip, 0, &cfg_base, 0, 0,
&wpi_reg_accattr, &cfg_handle);
if (err != DDI_SUCCESS) {
cmn_err(CE_WARN,
"wpi_attach(): failed to map config spaces regs\n");
goto attach_fail2;
}
sc->sc_rev = ddi_get8(cfg_handle,
(uint8_t *)(cfg_base + PCI_CONF_REVID));
ddi_put8(cfg_handle, (uint8_t *)(cfg_base + 0x41), 0);
sc->sc_clsz = ddi_get16(cfg_handle,
(uint16_t *)(cfg_base + PCI_CONF_CACHE_LINESZ));
ddi_regs_map_free(&cfg_handle);
if (!sc->sc_clsz)
sc->sc_clsz = 16;
sc->sc_clsz = (sc->sc_clsz << 2);
sc->sc_dmabuf_sz = roundup(0x1000 + sizeof (struct ieee80211_frame) +
IEEE80211_MTU + IEEE80211_CRC_LEN +
(IEEE80211_WEP_IVLEN + IEEE80211_WEP_KIDLEN +
IEEE80211_WEP_CRCLEN), sc->sc_clsz);
/*
* Map operating registers
*/
err = ddi_regs_map_setup(dip, 1, &sc->sc_base,
0, 0, &wpi_reg_accattr, &sc->sc_handle);
if (err != DDI_SUCCESS) {
cmn_err(CE_WARN,
"wpi_attach(): failed to map device regs\n");
goto attach_fail2;
}
/*
* Allocate shared page.
*/
err = wpi_alloc_shared(sc);
if (err != DDI_SUCCESS) {
cmn_err(CE_WARN, "failed to allocate shared page\n");
goto attach_fail3;
}
/*
* Get the hw conf, including MAC address, then init all rings.
*/
wpi_read_eeprom(sc);
err = wpi_ring_init(sc);
if (err != DDI_SUCCESS) {
cmn_err(CE_WARN, "wpi_attach(): "
"failed to allocate and initialize ring\n");
goto attach_fail4;
}
sc->sc_hdr = (const wpi_firmware_hdr_t *)wpi_fw_bin;
/* firmware image layout: |HDR|<--TEXT-->|<--DATA-->|<--BOOT-->| */
sc->sc_text = (const char *)(sc->sc_hdr + 1);
sc->sc_data = sc->sc_text + LE_32(sc->sc_hdr->textsz);
sc->sc_boot = sc->sc_data + LE_32(sc->sc_hdr->datasz);
err = wpi_alloc_fw_dma(sc);
if (err != DDI_SUCCESS) {
cmn_err(CE_WARN, "wpi_attach(): "
"failed to allocate firmware dma\n");
goto attach_fail5;
}
/*
* Initialize mutexs and condvars
*/
err = ddi_get_iblock_cookie(dip, 0, &sc->sc_iblk);
if (err != DDI_SUCCESS) {
cmn_err(CE_WARN,
"wpi_attach(): failed to do ddi_get_iblock_cookie()\n");
goto attach_fail6;
}
mutex_init(&sc->sc_glock, NULL, MUTEX_DRIVER, sc->sc_iblk);
mutex_init(&sc->sc_tx_lock, NULL, MUTEX_DRIVER, sc->sc_iblk);
cv_init(&sc->sc_fw_cv, NULL, CV_DRIVER, NULL);
cv_init(&sc->sc_cmd_cv, NULL, CV_DRIVER, NULL);
/*
* initialize the mfthread
*/
mutex_init(&sc->sc_mt_lock, NULL, MUTEX_DRIVER,
(void *) sc->sc_iblk);
cv_init(&sc->sc_mt_cv, NULL, CV_DRIVER, NULL);
sc->sc_mf_thread = NULL;
sc->sc_mf_thread_switch = 0;
/*
* Initialize the wifi part, which will be used by
* generic layer
*/
ic = &sc->sc_ic;
ic->ic_phytype = IEEE80211_T_OFDM;
ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */
ic->ic_state = IEEE80211_S_INIT;
ic->ic_maxrssi = 70; /* experimental number */
ic->ic_caps = IEEE80211_C_SHPREAMBLE | IEEE80211_C_TXPMGT |
IEEE80211_C_PMGT | IEEE80211_C_SHSLOT;
/*
* use software WEP and TKIP, hardware CCMP;
*/
ic->ic_caps |= IEEE80211_C_AES_CCM;
ic->ic_caps |= IEEE80211_C_WPA; /* Support WPA/WPA2 */
/* set supported .11b and .11g rates */
ic->ic_sup_rates[IEEE80211_MODE_11B] = wpi_rateset_11b;
ic->ic_sup_rates[IEEE80211_MODE_11G] = wpi_rateset_11g;
/* set supported .11b and .11g channels (1 through 14) */
for (i = 1; i <= 14; i++) {
ic->ic_sup_channels[i].ich_freq =
ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ);
ic->ic_sup_channels[i].ich_flags =
IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM |
IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ |
IEEE80211_CHAN_PASSIVE;
}
ic->ic_ibss_chan = &ic->ic_sup_channels[0];
ic->ic_xmit = wpi_send;
/*
* init Wifi layer
*/
ieee80211_attach(ic);
/* register WPA door */
ieee80211_register_door(ic, ddi_driver_name(dip),
ddi_get_instance(dip));
/*
* Override 80211 default routines
*/
sc->sc_newstate = ic->ic_newstate;
ic->ic_newstate = wpi_newstate;
ic->ic_node_alloc = wpi_node_alloc;
ic->ic_node_free = wpi_node_free;
ic->ic_crypto.cs_key_set = wpi_key_set;
ieee80211_media_init(ic);
/*
* initialize default tx key
*/
ic->ic_def_txkey = 0;
err = ddi_add_softintr(dip, DDI_SOFTINT_LOW,
&sc->sc_notif_softint_id, &sc->sc_iblk, NULL, wpi_notif_softintr,
(caddr_t)sc);
if (err != DDI_SUCCESS) {
cmn_err(CE_WARN,
"wpi_attach(): failed to do ddi_add_softintr()\n");
goto attach_fail7;
}
/*
* Add the interrupt handler
*/
err = ddi_add_intr(dip, 0, &sc->sc_iblk, NULL,
wpi_intr, (caddr_t)sc);
if (err != DDI_SUCCESS) {
cmn_err(CE_WARN,
"wpi_attach(): failed to do ddi_add_intr()\n");
goto attach_fail8;
}
/*
* Initialize pointer to device specific functions
*/
wd.wd_secalloc = WIFI_SEC_NONE;
wd.wd_opmode = ic->ic_opmode;
IEEE80211_ADDR_COPY(wd.wd_bssid, ic->ic_macaddr);
macp = mac_alloc(MAC_VERSION);
if (err != DDI_SUCCESS) {
cmn_err(CE_WARN,
"wpi_attach(): failed to do mac_alloc()\n");
goto attach_fail9;
}
macp->m_type_ident = MAC_PLUGIN_IDENT_WIFI;
macp->m_driver = sc;
macp->m_dip = dip;
macp->m_src_addr = ic->ic_macaddr;
macp->m_callbacks = &wpi_m_callbacks;
macp->m_min_sdu = 0;
macp->m_max_sdu = IEEE80211_MTU;
macp->m_pdata = &wd;
macp->m_pdata_size = sizeof (wd);
/*
* Register the macp to mac
*/
err = mac_register(macp, &ic->ic_mach);
mac_free(macp);
if (err != DDI_SUCCESS) {
cmn_err(CE_WARN,
"wpi_attach(): failed to do mac_register()\n");
goto attach_fail9;
}
/*
* Create minor node of type DDI_NT_NET_WIFI
*/
(void) snprintf(strbuf, sizeof (strbuf), "wpi%d", instance);
err = ddi_create_minor_node(dip, strbuf, S_IFCHR,
instance + 1, DDI_NT_NET_WIFI, 0);
if (err != DDI_SUCCESS)
cmn_err(CE_WARN,
"wpi_attach(): failed to do ddi_create_minor_node()\n");
/*
* Notify link is down now
*/
mac_link_update(ic->ic_mach, LINK_STATE_DOWN);
/*
* create the mf thread to handle the link status,
* recovery fatal error, etc.
*/
sc->sc_mf_thread_switch = 1;
if (sc->sc_mf_thread == NULL)
sc->sc_mf_thread = thread_create((caddr_t)NULL, 0,
wpi_thread, sc, 0, &p0, TS_RUN, minclsyspri);
sc->sc_flags |= WPI_F_ATTACHED;
return (DDI_SUCCESS);
attach_fail9:
ddi_remove_intr(dip, 0, sc->sc_iblk);
attach_fail8:
ddi_remove_softintr(sc->sc_notif_softint_id);
sc->sc_notif_softint_id = NULL;
attach_fail7:
ieee80211_detach(ic);
wpi_destroy_locks(sc);
attach_fail6:
wpi_free_fw_dma(sc);
attach_fail5:
wpi_ring_free(sc);
attach_fail4:
wpi_free_shared(sc);
attach_fail3:
ddi_regs_map_free(&sc->sc_handle);
attach_fail2:
ddi_soft_state_free(wpi_soft_state_p, instance);
attach_fail1:
return (err);
}
int
wpi_detach(dev_info_t *dip, ddi_detach_cmd_t cmd)
{
wpi_sc_t *sc;
int err;
sc = ddi_get_soft_state(wpi_soft_state_p, ddi_get_instance(dip));
ASSERT(sc != NULL);
switch (cmd) {
case DDI_DETACH:
break;
case DDI_SUSPEND:
mutex_enter(&sc->sc_glock);
sc->sc_flags |= WPI_F_SUSPEND;
mutex_exit(&sc->sc_glock);
if (sc->sc_flags & WPI_F_RUNNING) {
wpi_stop(sc);
}
WPI_DBG((WPI_DEBUG_RESUME, "wpi: suspend \n"));
return (DDI_SUCCESS);
default:
return (DDI_FAILURE);
}
if (!(sc->sc_flags & WPI_F_ATTACHED))
return (DDI_FAILURE);
err = mac_disable(sc->sc_ic.ic_mach);
if (err != DDI_SUCCESS)
return (err);
/*
* Destroy the mf_thread
*/
mutex_enter(&sc->sc_mt_lock);
sc->sc_mf_thread_switch = 0;
while (sc->sc_mf_thread != NULL) {
if (cv_wait_sig(&sc->sc_mt_cv, &sc->sc_mt_lock) == 0)
break;
}
mutex_exit(&sc->sc_mt_lock);
wpi_stop(sc);
/*
* Unregiste from the MAC layer subsystem
*/
(void) mac_unregister(sc->sc_ic.ic_mach);
mutex_enter(&sc->sc_glock);
wpi_free_fw_dma(sc);
wpi_ring_free(sc);
wpi_free_shared(sc);
mutex_exit(&sc->sc_glock);
ddi_remove_intr(dip, 0, sc->sc_iblk);
ddi_remove_softintr(sc->sc_notif_softint_id);
sc->sc_notif_softint_id = NULL;
/*
* detach ieee80211
*/
ieee80211_detach(&sc->sc_ic);
wpi_destroy_locks(sc);
ddi_regs_map_free(&sc->sc_handle);
ddi_remove_minor_node(dip, NULL);
ddi_soft_state_free(wpi_soft_state_p, ddi_get_instance(dip));
return (DDI_SUCCESS);
}
static void
wpi_destroy_locks(wpi_sc_t *sc)
{
cv_destroy(&sc->sc_mt_cv);
mutex_destroy(&sc->sc_mt_lock);
cv_destroy(&sc->sc_cmd_cv);
cv_destroy(&sc->sc_fw_cv);
mutex_destroy(&sc->sc_tx_lock);
mutex_destroy(&sc->sc_glock);
}
/*
* Allocate an area of memory and a DMA handle for accessing it
*/
static int
wpi_alloc_dma_mem(wpi_sc_t *sc, size_t memsize, ddi_dma_attr_t *dma_attr_p,
ddi_device_acc_attr_t *acc_attr_p, uint_t dma_flags, wpi_dma_t *dma_p)
{
caddr_t vaddr;
int err;
/*
* Allocate handle
*/
err = ddi_dma_alloc_handle(sc->sc_dip, dma_attr_p,
DDI_DMA_SLEEP, NULL, &dma_p->dma_hdl);
if (err != DDI_SUCCESS) {
dma_p->dma_hdl = NULL;
return (DDI_FAILURE);
}
/*
* Allocate memory
*/
err = ddi_dma_mem_alloc(dma_p->dma_hdl, memsize, acc_attr_p,
dma_flags & (DDI_DMA_CONSISTENT | DDI_DMA_STREAMING),
DDI_DMA_SLEEP, NULL, &vaddr, &dma_p->alength, &dma_p->acc_hdl);
if (err != DDI_SUCCESS) {
ddi_dma_free_handle(&dma_p->dma_hdl);
dma_p->dma_hdl = NULL;
dma_p->acc_hdl = NULL;
return (DDI_FAILURE);
}
/*
* Bind the two together
*/
dma_p->mem_va = vaddr;
err = ddi_dma_addr_bind_handle(dma_p->dma_hdl, NULL,
vaddr, dma_p->alength, dma_flags, DDI_DMA_SLEEP, NULL,
&dma_p->cookie, &dma_p->ncookies);
if (err != DDI_DMA_MAPPED) {
ddi_dma_mem_free(&dma_p->acc_hdl);
ddi_dma_free_handle(&dma_p->dma_hdl);
dma_p->acc_hdl = NULL;
dma_p->dma_hdl = NULL;
return (DDI_FAILURE);
}
dma_p->nslots = ~0U;
dma_p->size = ~0U;
dma_p->token = ~0U;
dma_p->offset = 0;
return (DDI_SUCCESS);
}
/*
* Free one allocated area of DMAable memory
*/
static void
wpi_free_dma_mem(wpi_dma_t *dma_p)
{
if (dma_p->dma_hdl != NULL) {
if (dma_p->ncookies) {
(void) ddi_dma_unbind_handle(dma_p->dma_hdl);
dma_p->ncookies = 0;
}
ddi_dma_free_handle(&dma_p->dma_hdl);
dma_p->dma_hdl = NULL;
}
if (dma_p->acc_hdl != NULL) {
ddi_dma_mem_free(&dma_p->acc_hdl);
dma_p->acc_hdl = NULL;
}
}
/*
* Allocate an area of dma memory for firmware load.
* Idealy, this allocation should be a one time action, that is,
* the memory will be freed after the firmware is uploaded to the
* card. but since a recovery mechanism for the fatal firmware need
* reload the firmware, and re-allocate dma at run time may be failed,
* so we allocate it at attach and keep it in the whole lifecycle of
* the driver.
*/
static int
wpi_alloc_fw_dma(wpi_sc_t *sc)
{
int i, err = DDI_SUCCESS;
wpi_dma_t *dma_p;
err = wpi_alloc_dma_mem(sc, LE_32(sc->sc_hdr->textsz),
&fw_buffer_dma_attr, &wpi_dma_accattr,
DDI_DMA_RDWR | DDI_DMA_CONSISTENT,
&sc->sc_dma_fw_text);
dma_p = &sc->sc_dma_fw_text;
WPI_DBG((WPI_DEBUG_DMA, "ncookies:%d addr1:%x size1:%x\n",
dma_p->ncookies, dma_p->cookie.dmac_address,
dma_p->cookie.dmac_size));
if (err != DDI_SUCCESS) {
cmn_err(CE_WARN, "wpi_alloc_fw_dma(): failed to alloc"
"text dma memory");
goto fail;
}
for (i = 0; i < dma_p->ncookies; i++) {
sc->sc_fw_text_cookie[i] = dma_p->cookie;
ddi_dma_nextcookie(dma_p->dma_hdl, &dma_p->cookie);
}
err = wpi_alloc_dma_mem(sc, LE_32(sc->sc_hdr->datasz),
&fw_buffer_dma_attr, &wpi_dma_accattr,
DDI_DMA_RDWR | DDI_DMA_CONSISTENT,
&sc->sc_dma_fw_data);
dma_p = &sc->sc_dma_fw_data;
WPI_DBG((WPI_DEBUG_DMA, "ncookies:%d addr1:%x size1:%x\n",
dma_p->ncookies, dma_p->cookie.dmac_address,
dma_p->cookie.dmac_size));
if (err != DDI_SUCCESS) {
cmn_err(CE_WARN, "wpi_alloc_fw_dma(): failed to alloc"
"data dma memory");
goto fail;
}
for (i = 0; i < dma_p->ncookies; i++) {
sc->sc_fw_data_cookie[i] = dma_p->cookie;
ddi_dma_nextcookie(dma_p->dma_hdl, &dma_p->cookie);
}
fail:
return (err);
}
static void
wpi_free_fw_dma(wpi_sc_t *sc)
{
wpi_free_dma_mem(&sc->sc_dma_fw_text);
wpi_free_dma_mem(&sc->sc_dma_fw_data);
}
/*
* Allocate a shared page between host and NIC.
*/
static int
wpi_alloc_shared(wpi_sc_t *sc)
{
int err = DDI_SUCCESS;
/* must be aligned on a 4K-page boundary */
err = wpi_alloc_dma_mem(sc, sizeof (wpi_shared_t),
&sh_dma_attr, &wpi_dma_accattr,
DDI_DMA_RDWR | DDI_DMA_CONSISTENT,
&sc->sc_dma_sh);
if (err != DDI_SUCCESS)
goto fail;
sc->sc_shared = (wpi_shared_t *)sc->sc_dma_sh.mem_va;
return (err);
fail:
wpi_free_shared(sc);
return (err);
}
static void
wpi_free_shared(wpi_sc_t *sc)
{
wpi_free_dma_mem(&sc->sc_dma_sh);
}
static int
wpi_alloc_rx_ring(wpi_sc_t *sc)
{
wpi_rx_ring_t *ring;
wpi_rx_data_t *data;
int i, err = DDI_SUCCESS;
ring = &sc->sc_rxq;
ring->cur = 0;
err = wpi_alloc_dma_mem(sc, WPI_RX_RING_COUNT * sizeof (uint32_t),
&ring_desc_dma_attr, &wpi_dma_accattr,
DDI_DMA_RDWR | DDI_DMA_CONSISTENT,
&ring->dma_desc);
if (err != DDI_SUCCESS) {
WPI_DBG((WPI_DEBUG_DMA, "dma alloc rx ring desc failed\n"));
goto fail;
}
ring->desc = (uint32_t *)ring->dma_desc.mem_va;
/*
* Allocate Rx buffers.
*/
for (i = 0; i < WPI_RX_RING_COUNT; i++) {
data = &ring->data[i];
err = wpi_alloc_dma_mem(sc, sc->sc_dmabuf_sz,
&rx_buffer_dma_attr, &wpi_dma_accattr,
DDI_DMA_READ | DDI_DMA_STREAMING,
&data->dma_data);
if (err != DDI_SUCCESS) {
WPI_DBG((WPI_DEBUG_DMA, "dma alloc rx ring buf[%d] "
"failed\n", i));
goto fail;
}
ring->desc[i] = LE_32(data->dma_data.cookie.dmac_address);
}
WPI_DMA_SYNC(ring->dma_desc, DDI_DMA_SYNC_FORDEV);
return (err);
fail:
wpi_free_rx_ring(sc);
return (err);
}
static void
wpi_reset_rx_ring(wpi_sc_t *sc)
{
int ntries;
wpi_mem_lock(sc);
WPI_WRITE(sc, WPI_RX_CONFIG, 0);
for (ntries = 0; ntries < 2000; ntries++) {
if (WPI_READ(sc, WPI_RX_STATUS) & WPI_RX_IDLE)
break;
DELAY(1000);
}
if (ntries == 2000)
WPI_DBG((WPI_DEBUG_DMA, "timeout resetting Rx ring\n"));
wpi_mem_unlock(sc);
sc->sc_rxq.cur = 0;
}
static void
wpi_free_rx_ring(wpi_sc_t *sc)
{
int i;
for (i = 0; i < WPI_RX_RING_COUNT; i++) {
if (sc->sc_rxq.data[i].dma_data.dma_hdl)
WPI_DMA_SYNC(sc->sc_rxq.data[i].dma_data,
DDI_DMA_SYNC_FORCPU);
wpi_free_dma_mem(&sc->sc_rxq.data[i].dma_data);
}
if (sc->sc_rxq.dma_desc.dma_hdl)
WPI_DMA_SYNC(sc->sc_rxq.dma_desc, DDI_DMA_SYNC_FORDEV);
wpi_free_dma_mem(&sc->sc_rxq.dma_desc);
}
static int
wpi_alloc_tx_ring(wpi_sc_t *sc, wpi_tx_ring_t *ring, int count, int qid)
{
wpi_tx_data_t *data;
wpi_tx_desc_t *desc_h;
uint32_t paddr_desc_h;
wpi_tx_cmd_t *cmd_h;
uint32_t paddr_cmd_h;
int i, err = DDI_SUCCESS;
ring->qid = qid;
ring->count = count;
ring->queued = 0;
ring->cur = 0;
err = wpi_alloc_dma_mem(sc, count * sizeof (wpi_tx_desc_t),
&ring_desc_dma_attr, &wpi_dma_accattr,
DDI_DMA_RDWR | DDI_DMA_CONSISTENT,
&ring->dma_desc);
if (err != DDI_SUCCESS) {
WPI_DBG((WPI_DEBUG_DMA, "dma alloc tx ring desc[%d] failed\n",
qid));
goto fail;
}
/* update shared page with ring's base address */
sc->sc_shared->txbase[qid] = ring->dma_desc.cookie.dmac_address;
desc_h = (wpi_tx_desc_t *)ring->dma_desc.mem_va;
paddr_desc_h = ring->dma_desc.cookie.dmac_address;
err = wpi_alloc_dma_mem(sc, count * sizeof (wpi_tx_cmd_t),
&tx_cmd_dma_attr, &wpi_dma_accattr,
DDI_DMA_RDWR | DDI_DMA_CONSISTENT,
&ring->dma_cmd);
if (err != DDI_SUCCESS) {
WPI_DBG((WPI_DEBUG_DMA, "dma alloc tx ring cmd[%d] failed\n",
qid));
goto fail;
}
cmd_h = (wpi_tx_cmd_t *)ring->dma_cmd.mem_va;
paddr_cmd_h = ring->dma_cmd.cookie.dmac_address;
/*
* Allocate Tx buffers.
*/
ring->data = kmem_zalloc(sizeof (wpi_tx_data_t) * count, KM_NOSLEEP);
if (ring->data == NULL) {
WPI_DBG((WPI_DEBUG_DMA, "could not allocate tx data slots\n"));
goto fail;
}
for (i = 0; i < count; i++) {
data = &ring->data[i];
err = wpi_alloc_dma_mem(sc, sc->sc_dmabuf_sz,
&tx_buffer_dma_attr, &wpi_dma_accattr,
DDI_DMA_WRITE | DDI_DMA_STREAMING,
&data->dma_data);
if (err != DDI_SUCCESS) {
WPI_DBG((WPI_DEBUG_DMA, "dma alloc tx ring buf[%d] "
"failed\n", i));
goto fail;
}
data->desc = desc_h + i;
data->paddr_desc = paddr_desc_h +
((uintptr_t)data->desc - (uintptr_t)desc_h);
data->cmd = cmd_h + i;
data->paddr_cmd = paddr_cmd_h +
((uintptr_t)data->cmd - (uintptr_t)cmd_h);
}
return (err);
fail:
wpi_free_tx_ring(sc, ring);
return (err);
}
static void
wpi_reset_tx_ring(wpi_sc_t *sc, wpi_tx_ring_t *ring)
{
wpi_tx_data_t *data;
int i, ntries;
wpi_mem_lock(sc);
WPI_WRITE(sc, WPI_TX_CONFIG(ring->qid), 0);
for (ntries = 0; ntries < 100; ntries++) {
if (WPI_READ(sc, WPI_TX_STATUS) & WPI_TX_IDLE(ring->qid))
break;
DELAY(10);
}
#ifdef DEBUG
if (ntries == 100 && wpi_dbg_flags > 0) {
WPI_DBG((WPI_DEBUG_DMA, "timeout resetting Tx ring %d\n",
ring->qid));
}
#endif
wpi_mem_unlock(sc);
if (!(sc->sc_flags & WPI_F_QUIESCED)) {
for (i = 0; i < ring->count; i++) {
data = &ring->data[i];
WPI_DMA_SYNC(data->dma_data, DDI_DMA_SYNC_FORDEV);
}
}
ring->queued = 0;
ring->cur = 0;
}
/*ARGSUSED*/
static void
wpi_free_tx_ring(wpi_sc_t *sc, wpi_tx_ring_t *ring)
{
int i;
if (ring->dma_desc.dma_hdl != NULL)
WPI_DMA_SYNC(ring->dma_desc, DDI_DMA_SYNC_FORDEV);
wpi_free_dma_mem(&ring->dma_desc);
if (ring->dma_cmd.dma_hdl != NULL)
WPI_DMA_SYNC(ring->dma_cmd, DDI_DMA_SYNC_FORDEV);
wpi_free_dma_mem(&ring->dma_cmd);
if (ring->data != NULL) {
for (i = 0; i < ring->count; i++) {
if (ring->data[i].dma_data.dma_hdl)
WPI_DMA_SYNC(ring->data[i].dma_data,
DDI_DMA_SYNC_FORDEV);
wpi_free_dma_mem(&ring->data[i].dma_data);
}
kmem_free(ring->data, ring->count * sizeof (wpi_tx_data_t));
ring->data = NULL;
}
}
static int
wpi_ring_init(wpi_sc_t *sc)
{
int i, err = DDI_SUCCESS;
for (i = 0; i < 4; i++) {
err = wpi_alloc_tx_ring(sc, &sc->sc_txq[i], WPI_TX_RING_COUNT,
i);
if (err != DDI_SUCCESS)
goto fail;
}
err = wpi_alloc_tx_ring(sc, &sc->sc_cmdq, WPI_CMD_RING_COUNT, 4);
if (err != DDI_SUCCESS)
goto fail;
err = wpi_alloc_tx_ring(sc, &sc->sc_svcq, WPI_SVC_RING_COUNT, 5);
if (err != DDI_SUCCESS)
goto fail;
err = wpi_alloc_rx_ring(sc);
if (err != DDI_SUCCESS)
goto fail;
return (err);
fail:
return (err);
}
static void
wpi_ring_free(wpi_sc_t *sc)
{
int i = 4;
wpi_free_rx_ring(sc);
wpi_free_tx_ring(sc, &sc->sc_svcq);
wpi_free_tx_ring(sc, &sc->sc_cmdq);
while (--i >= 0) {
wpi_free_tx_ring(sc, &sc->sc_txq[i]);
}
}
/* ARGSUSED */
static ieee80211_node_t *
wpi_node_alloc(ieee80211com_t *ic)
{
wpi_amrr_t *amrr;
amrr = kmem_zalloc(sizeof (wpi_amrr_t), KM_SLEEP);
if (amrr != NULL)
wpi_amrr_init(amrr);
return (&amrr->in);
}
static void
wpi_node_free(ieee80211_node_t *in)
{
ieee80211com_t *ic = in->in_ic;
ic->ic_node_cleanup(in);
if (in->in_wpa_ie != NULL)
ieee80211_free(in->in_wpa_ie);
kmem_free(in, sizeof (wpi_amrr_t));
}
/*ARGSUSED*/
static int
wpi_newstate(ieee80211com_t *ic, enum ieee80211_state nstate, int arg)
{
wpi_sc_t *sc = (wpi_sc_t *)ic;
ieee80211_node_t *in = ic->ic_bss;
enum ieee80211_state ostate;
int i, err = WPI_SUCCESS;
mutex_enter(&sc->sc_glock);
ostate = ic->ic_state;
switch (nstate) {
case IEEE80211_S_SCAN:
switch (ostate) {
case IEEE80211_S_INIT:
{
wpi_node_t node;
sc->sc_flags |= WPI_F_SCANNING;
sc->sc_scan_next = 0;
/* make the link LED blink while we're scanning */
wpi_set_led(sc, WPI_LED_LINK, 20, 2);
/*
* clear association to receive beacons from all
* BSS'es
*/
sc->sc_config.state = 0;
sc->sc_config.filter &= ~LE_32(WPI_FILTER_BSS);
WPI_DBG((WPI_DEBUG_80211, "config chan %d flags %x "
"filter %x\n",
sc->sc_config.chan, sc->sc_config.flags,
sc->sc_config.filter));
err = wpi_cmd(sc, WPI_CMD_CONFIGURE, &sc->sc_config,
sizeof (wpi_config_t), 1);
if (err != WPI_SUCCESS) {
cmn_err(CE_WARN,
"could not clear association\n");
sc->sc_flags &= ~WPI_F_SCANNING;
mutex_exit(&sc->sc_glock);
return (err);
}
/* add broadcast node to send probe request */
(void) memset(&node, 0, sizeof (node));
(void) memset(&node.bssid, 0xff, IEEE80211_ADDR_LEN);
node.id = WPI_ID_BROADCAST;
err = wpi_cmd(sc, WPI_CMD_ADD_NODE, &node,
sizeof (node), 1);
if (err != WPI_SUCCESS) {
cmn_err(CE_WARN,
"could not add broadcast node\n");
sc->sc_flags &= ~WPI_F_SCANNING;
mutex_exit(&sc->sc_glock);
return (err);
}
break;
}
case IEEE80211_S_SCAN:
mutex_exit(&sc->sc_glock);
/* step to next channel before actual FW scan */
err = sc->sc_newstate(ic, nstate, arg);
mutex_enter(&sc->sc_glock);
if ((err != 0) || ((err = wpi_scan(sc)) != 0)) {
cmn_err(CE_WARN,
"could not initiate scan\n");
sc->sc_flags &= ~WPI_F_SCANNING;
ieee80211_cancel_scan(ic);
}
mutex_exit(&sc->sc_glock);
return (err);
default:
break;
}
sc->sc_clk = 0;
break;
case IEEE80211_S_AUTH:
if (ostate == IEEE80211_S_SCAN) {
sc->sc_flags &= ~WPI_F_SCANNING;
}
/* reset state to handle reassociations correctly */
sc->sc_config.state = 0;
sc->sc_config.filter &= ~LE_32(WPI_FILTER_BSS);
if ((err = wpi_auth(sc)) != 0) {
WPI_DBG((WPI_DEBUG_80211,
"could not send authentication request\n"));
mutex_exit(&sc->sc_glock);
return (err);
}
break;
case IEEE80211_S_RUN:
if (ostate == IEEE80211_S_SCAN) {
sc->sc_flags &= ~WPI_F_SCANNING;
}
if (ic->ic_opmode == IEEE80211_M_MONITOR) {
/* link LED blinks while monitoring */
wpi_set_led(sc, WPI_LED_LINK, 5, 5);
break;
}
if (ic->ic_opmode != IEEE80211_M_STA) {
(void) wpi_auth(sc);
/* need setup beacon here */
}
WPI_DBG((WPI_DEBUG_80211, "wpi: associated."));
/* update adapter's configuration */
sc->sc_config.state = LE_16(WPI_CONFIG_ASSOCIATED);
/* short preamble/slot time are negotiated when associating */
sc->sc_config.flags &= ~LE_32(WPI_CONFIG_SHPREAMBLE |
WPI_CONFIG_SHSLOT);
if (ic->ic_flags & IEEE80211_F_SHSLOT)
sc->sc_config.flags |= LE_32(WPI_CONFIG_SHSLOT);
if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
sc->sc_config.flags |= LE_32(WPI_CONFIG_SHPREAMBLE);
sc->sc_config.filter |= LE_32(WPI_FILTER_BSS);
if (ic->ic_opmode != IEEE80211_M_STA)
sc->sc_config.filter |= LE_32(WPI_FILTER_BEACON);
WPI_DBG((WPI_DEBUG_80211, "config chan %d flags %x\n",
sc->sc_config.chan, sc->sc_config.flags));
err = wpi_cmd(sc, WPI_CMD_CONFIGURE, &sc->sc_config,
sizeof (wpi_config_t), 1);
if (err != WPI_SUCCESS) {
WPI_DBG((WPI_DEBUG_80211,
"could not update configuration\n"));
mutex_exit(&sc->sc_glock);
return (err);
}
/* start automatic rate control */
mutex_enter(&sc->sc_mt_lock);
if (ic->ic_fixed_rate == IEEE80211_FIXED_RATE_NONE) {
sc->sc_flags |= WPI_F_RATE_AUTO_CTL;
/* set rate to some reasonable initial value */
i = in->in_rates.ir_nrates - 1;
while (i > 0 && IEEE80211_RATE(i) > 72)
i--;
in->in_txrate = i;
} else {
sc->sc_flags &= ~WPI_F_RATE_AUTO_CTL;
}
mutex_exit(&sc->sc_mt_lock);
/* link LED always on while associated */
wpi_set_led(sc, WPI_LED_LINK, 0, 1);
break;
case IEEE80211_S_INIT:
sc->sc_flags &= ~WPI_F_SCANNING;
break;
case IEEE80211_S_ASSOC:
sc->sc_flags &= ~WPI_F_SCANNING;
break;
}
mutex_exit(&sc->sc_glock);
return (sc->sc_newstate(ic, nstate, arg));
}
/*ARGSUSED*/
static int wpi_key_set(ieee80211com_t *ic, const struct ieee80211_key *k,
const uint8_t mac[IEEE80211_ADDR_LEN])
{
wpi_sc_t *sc = (wpi_sc_t *)ic;
wpi_node_t node;
int err;
switch (k->wk_cipher->ic_cipher) {
case IEEE80211_CIPHER_WEP:
case IEEE80211_CIPHER_TKIP:
return (1); /* sofeware do it. */
case IEEE80211_CIPHER_AES_CCM:
break;
default:
return (0);
}
sc->sc_config.filter &= ~(WPI_FILTER_NODECRYPTUNI |
WPI_FILTER_NODECRYPTMUL);
mutex_enter(&sc->sc_glock);
/* update ap/multicast node */
(void) memset(&node, 0, sizeof (node));
if (IEEE80211_IS_MULTICAST(mac)) {
(void) memset(node.bssid, 0xff, 6);
node.id = WPI_ID_BROADCAST;
} else {
IEEE80211_ADDR_COPY(node.bssid, ic->ic_bss->in_bssid);
node.id = WPI_ID_BSS;
}
if (k->wk_flags & IEEE80211_KEY_XMIT) {
node.key_flags = 0;
node.keyp = k->wk_keyix;
} else {
node.key_flags = (1 << 14);
node.keyp = k->wk_keyix + 4;
}
(void) memcpy(node.key, k->wk_key, k->wk_keylen);
node.key_flags |= (2 | (1 << 3) | (k->wk_keyix << 8));
node.sta_mask = 1;
node.control = 1;
err = wpi_cmd(sc, WPI_CMD_ADD_NODE, &node, sizeof (node), 1);
if (err != WPI_SUCCESS) {
cmn_err(CE_WARN, "wpi_key_set():"
"failed to update ap node\n");
mutex_exit(&sc->sc_glock);
return (0);
}
mutex_exit(&sc->sc_glock);
return (1);
}
/*
* Grab exclusive access to NIC memory.
*/
static void
wpi_mem_lock(wpi_sc_t *sc)
{
uint32_t tmp;
int ntries;
tmp = WPI_READ(sc, WPI_GPIO_CTL);
WPI_WRITE(sc, WPI_GPIO_CTL, tmp | WPI_GPIO_MAC);
/* spin until we actually get the lock */
for (ntries = 0; ntries < 1000; ntries++) {
if ((WPI_READ(sc, WPI_GPIO_CTL) &
(WPI_GPIO_CLOCK | WPI_GPIO_SLEEP)) == WPI_GPIO_CLOCK)
break;
DELAY(10);
}
if (ntries == 1000)
WPI_DBG((WPI_DEBUG_PIO, "could not lock memory\n"));
}
/*
* Release lock on NIC memory.
*/
static void
wpi_mem_unlock(wpi_sc_t *sc)
{
uint32_t tmp = WPI_READ(sc, WPI_GPIO_CTL);
WPI_WRITE(sc, WPI_GPIO_CTL, tmp & ~WPI_GPIO_MAC);
}
static uint32_t
wpi_mem_read(wpi_sc_t *sc, uint16_t addr)
{
WPI_WRITE(sc, WPI_READ_MEM_ADDR, WPI_MEM_4 | addr);
return (WPI_READ(sc, WPI_READ_MEM_DATA));
}
static void
wpi_mem_write(wpi_sc_t *sc, uint16_t addr, uint32_t data)
{
WPI_WRITE(sc, WPI_WRITE_MEM_ADDR, WPI_MEM_4 | addr);
WPI_WRITE(sc, WPI_WRITE_MEM_DATA, data);
}
static void
wpi_mem_write_region_4(wpi_sc_t *sc, uint16_t addr,
const uint32_t *data, int wlen)
{
for (; wlen > 0; wlen--, data++, addr += 4)
wpi_mem_write(sc, addr, *data);
}
/*
* Read 16 bits from the EEPROM. We access EEPROM through the MAC instead of
* using the traditional bit-bang method.
*/
static uint16_t
wpi_read_prom_word(wpi_sc_t *sc, uint32_t addr)
{
uint32_t val;
int ntries;
WPI_WRITE(sc, WPI_EEPROM_CTL, addr << 2);
wpi_mem_lock(sc);
for (ntries = 0; ntries < 10; ntries++) {
if ((val = WPI_READ(sc, WPI_EEPROM_CTL)) & WPI_EEPROM_READY)
break;
DELAY(10);
}
wpi_mem_unlock(sc);
if (ntries == 10) {
WPI_DBG((WPI_DEBUG_PIO, "could not read EEPROM\n"));
return (0xdead);
}
return (val >> 16);
}
/*
* The firmware boot code is small and is intended to be copied directly into
* the NIC internal memory.
*/
static int
wpi_load_microcode(wpi_sc_t *sc)
{
const char *ucode;
int size;
ucode = sc->sc_boot;
size = LE_32(sc->sc_hdr->bootsz);
/* check that microcode size is a multiple of 4 */
if (size & 3)
return (EINVAL);
size /= sizeof (uint32_t);
wpi_mem_lock(sc);
/* copy microcode image into NIC memory */
wpi_mem_write_region_4(sc, WPI_MEM_UCODE_BASE, (const uint32_t *)ucode,
size);
wpi_mem_write(sc, WPI_MEM_UCODE_SRC, 0);
wpi_mem_write(sc, WPI_MEM_UCODE_DST, WPI_FW_TEXT);
wpi_mem_write(sc, WPI_MEM_UCODE_SIZE, size);
/* run microcode */
wpi_mem_write(sc, WPI_MEM_UCODE_CTL, WPI_UC_RUN);
wpi_mem_unlock(sc);
return (WPI_SUCCESS);
}
/*
* The firmware text and data segments are transferred to the NIC using DMA.
* The driver just copies the firmware into DMA-safe memory and tells the NIC
* where to find it. Once the NIC has copied the firmware into its internal
* memory, we can free our local copy in the driver.
*/
static int
wpi_load_firmware(wpi_sc_t *sc, uint32_t target)
{
const char *fw;
int size;
wpi_dma_t *dma_p;
ddi_dma_cookie_t *cookie;
wpi_tx_desc_t desc;
int i, ntries, err = WPI_SUCCESS;
/* only text and data here */
if (target == WPI_FW_TEXT) {
fw = sc->sc_text;
size = LE_32(sc->sc_hdr->textsz);
dma_p = &sc->sc_dma_fw_text;
cookie = sc->sc_fw_text_cookie;
} else {
fw = sc->sc_data;
size = LE_32(sc->sc_hdr->datasz);
dma_p = &sc->sc_dma_fw_data;
cookie = sc->sc_fw_data_cookie;
}
/* copy firmware image to DMA-safe memory */
(void) memcpy(dma_p->mem_va, fw, size);
/* make sure the adapter will get up-to-date values */
(void) ddi_dma_sync(dma_p->dma_hdl, 0, size, DDI_DMA_SYNC_FORDEV);
(void) memset(&desc, 0, sizeof (desc));
desc.flags = LE_32(WPI_PAD32(size) << 28 | dma_p->ncookies << 24);
for (i = 0; i < dma_p->ncookies; i++) {
WPI_DBG((WPI_DEBUG_DMA, "cookie%d addr:%x size:%x\n",
i, cookie[i].dmac_address, cookie[i].dmac_size));
desc.segs[i].addr = cookie[i].dmac_address;
desc.segs[i].len = (uint32_t)cookie[i].dmac_size;
}
wpi_mem_lock(sc);
/* tell adapter where to copy image in its internal memory */
WPI_WRITE(sc, WPI_FW_TARGET, target);
WPI_WRITE(sc, WPI_TX_CONFIG(6), 0);
/* copy firmware descriptor into NIC memory */
WPI_WRITE_REGION_4(sc, WPI_TX_DESC(6), (uint32_t *)&desc,
sizeof desc / sizeof (uint32_t));
WPI_WRITE(sc, WPI_TX_CREDIT(6), 0xfffff);
WPI_WRITE(sc, WPI_TX_STATE(6), 0x4001);
WPI_WRITE(sc, WPI_TX_CONFIG(6), 0x80000001);
/* wait while the adapter is busy copying the firmware */
for (ntries = 0; ntries < 100; ntries++) {
if (WPI_READ(sc, WPI_TX_STATUS) & WPI_TX_IDLE(6))
break;
DELAY(1000);
}
if (ntries == 100) {
WPI_DBG((WPI_DEBUG_FW, "timeout transferring firmware\n"));
err = ETIMEDOUT;
}
WPI_WRITE(sc, WPI_TX_CREDIT(6), 0);
wpi_mem_unlock(sc);
return (err);
}
/*ARGSUSED*/
static void
wpi_rx_intr(wpi_sc_t *sc, wpi_rx_desc_t *desc, wpi_rx_data_t *data)
{
ieee80211com_t *ic = &sc->sc_ic;
wpi_rx_ring_t *ring = &sc->sc_rxq;
wpi_rx_stat_t *stat;
wpi_rx_head_t *head;
wpi_rx_tail_t *tail;
ieee80211_node_t *in;
struct ieee80211_frame *wh;
mblk_t *mp;
uint16_t len;
stat = (wpi_rx_stat_t *)(desc + 1);
if (stat->len > WPI_STAT_MAXLEN) {
WPI_DBG((WPI_DEBUG_RX, "invalid rx statistic header\n"));
return;
}
head = (wpi_rx_head_t *)((caddr_t)(stat + 1) + stat->len);
tail = (wpi_rx_tail_t *)((caddr_t)(head + 1) + LE_16(head->len));
len = LE_16(head->len);
WPI_DBG((WPI_DEBUG_RX, "rx intr: idx=%d len=%d stat len=%d rssi=%d "
"rate=%x chan=%d tstamp=%llu", ring->cur, LE_32(desc->len),
len, (int8_t)stat->rssi, head->rate, head->chan,
LE_64(tail->tstamp)));
if ((len < 20) || (len > sc->sc_dmabuf_sz)) {
sc->sc_rx_err++;
return;
}
/*
* Discard Rx frames with bad CRC early
*/
if ((LE_32(tail->flags) & WPI_RX_NOERROR) != WPI_RX_NOERROR) {
WPI_DBG((WPI_DEBUG_RX, "rx tail flags error %x\n",
LE_32(tail->flags)));
sc->sc_rx_err++;
return;
}
/* update Rx descriptor */
/* ring->desc[ring->cur] = LE_32(data->dma_data.cookie.dmac_address); */
#ifdef WPI_BPF
#ifndef WPI_CURRENT
if (sc->sc_drvbpf != NULL) {
#else
if (bpf_peers_present(sc->sc_drvbpf)) {
#endif
struct wpi_rx_radiotap_header *tap = &sc->sc_rxtap;
tap->wr_flags = 0;
tap->wr_rate = head->rate;
tap->wr_chan_freq =
LE_16(ic->ic_channels[head->chan].ic_freq);
tap->wr_chan_flags =
LE_16(ic->ic_channels[head->chan].ic_flags);
tap->wr_dbm_antsignal = (int8_t)(stat->rssi - WPI_RSSI_OFFSET);
tap->wr_dbm_antnoise = (int8_t)LE_16(stat->noise);
tap->wr_tsft = tail->tstamp;
tap->wr_antenna = (LE_16(head->flags) >> 4) & 0xf;
switch (head->rate) {
/* CCK rates */
case 10: tap->wr_rate = 2; break;
case 20: tap->wr_rate = 4; break;
case 55: tap->wr_rate = 11; break;
case 110: tap->wr_rate = 22; break;
/* OFDM rates */
case 0xd: tap->wr_rate = 12; break;
case 0xf: tap->wr_rate = 18; break;
case 0x5: tap->wr_rate = 24; break;
case 0x7: tap->wr_rate = 36; break;
case 0x9: tap->wr_rate = 48; break;
case 0xb: tap->wr_rate = 72; break;
case 0x1: tap->wr_rate = 96; break;
case 0x3: tap->wr_rate = 108; break;
/* unknown rate: should not happen */
default: tap->wr_rate = 0;
}
if (LE_16(head->flags) & 0x4)
tap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE;
bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_rxtap_len, m);
}
#endif
/* grab a reference to the source node */
wh = (struct ieee80211_frame *)(head + 1);
#ifdef DEBUG
if (wpi_dbg_flags & WPI_DEBUG_RX)
ieee80211_dump_pkt((uint8_t *)wh, len, 0, 0);
#endif
in = ieee80211_find_rxnode(ic, wh);
mp = allocb(len, BPRI_MED);
if (mp) {
(void) memcpy(mp->b_wptr, wh, len);
mp->b_wptr += len;
/* send the frame to the 802.11 layer */
(void) ieee80211_input(ic, mp, in, stat->rssi, 0);
} else {
sc->sc_rx_nobuf++;
WPI_DBG((WPI_DEBUG_RX,
"wpi_rx_intr(): alloc rx buf failed\n"));
}
/* release node reference */
ieee80211_free_node(in);
}
/*ARGSUSED*/
static void
wpi_tx_intr(wpi_sc_t *sc, wpi_rx_desc_t *desc, wpi_rx_data_t *data)
{
ieee80211com_t *ic = &sc->sc_ic;
wpi_tx_ring_t *ring = &sc->sc_txq[desc->qid & 0x3];
/* wpi_tx_data_t *txdata = &ring->data[desc->idx]; */
wpi_tx_stat_t *stat = (wpi_tx_stat_t *)(desc + 1);
wpi_amrr_t *amrr = (wpi_amrr_t *)ic->ic_bss;
WPI_DBG((WPI_DEBUG_TX, "tx done: qid=%d idx=%d retries=%d nkill=%d "
"rate=%x duration=%d status=%x\n",
desc->qid, desc->idx, stat->ntries, stat->nkill, stat->rate,
LE_32(stat->duration), LE_32(stat->status)));
amrr->txcnt++;
WPI_DBG((WPI_DEBUG_RATECTL, "tx: %d cnt\n", amrr->txcnt));
if (stat->ntries > 0) {
amrr->retrycnt++;
sc->sc_tx_retries++;
WPI_DBG((WPI_DEBUG_RATECTL, "tx: %d retries\n",
amrr->retrycnt));
}
sc->sc_tx_timer = 0;
mutex_enter(&sc->sc_tx_lock);
ring->queued--;
if (ring->queued < 0)
ring->queued = 0;
if ((sc->sc_need_reschedule) && (ring->queued <= (ring->count << 3))) {
sc->sc_need_reschedule = 0;
mutex_exit(&sc->sc_tx_lock);
mac_tx_update(ic->ic_mach);
mutex_enter(&sc->sc_tx_lock);
}
mutex_exit(&sc->sc_tx_lock);
}
static void
wpi_cmd_intr(wpi_sc_t *sc, wpi_rx_desc_t *desc)
{
if ((desc->qid & 7) != 4) {
return; /* not a command ack */
}
mutex_enter(&sc->sc_glock);
sc->sc_flags |= WPI_F_CMD_DONE;
cv_signal(&sc->sc_cmd_cv);
mutex_exit(&sc->sc_glock);
}
static uint_t
wpi_notif_softintr(caddr_t arg)
{
wpi_sc_t *sc = (wpi_sc_t *)arg;
wpi_rx_desc_t *desc;
wpi_rx_data_t *data;
uint32_t hw;
mutex_enter(&sc->sc_glock);
if (sc->sc_notif_softint_pending != 1) {
mutex_exit(&sc->sc_glock);
return (DDI_INTR_UNCLAIMED);
}
mutex_exit(&sc->sc_glock);
hw = LE_32(sc->sc_shared->next);
while (sc->sc_rxq.cur != hw) {
data = &sc->sc_rxq.data[sc->sc_rxq.cur];
desc = (wpi_rx_desc_t *)data->dma_data.mem_va;
WPI_DBG((WPI_DEBUG_INTR, "rx notification hw = %d cur = %d "
"qid=%x idx=%d flags=%x type=%d len=%d\n",
hw, sc->sc_rxq.cur, desc->qid, desc->idx, desc->flags,
desc->type, LE_32(desc->len)));
if (!(desc->qid & 0x80)) /* reply to a command */
wpi_cmd_intr(sc, desc);
switch (desc->type) {
case WPI_RX_DONE:
/* a 802.11 frame was received */
wpi_rx_intr(sc, desc, data);
break;
case WPI_TX_DONE:
/* a 802.11 frame has been transmitted */
wpi_tx_intr(sc, desc, data);
break;
case WPI_UC_READY:
{
wpi_ucode_info_t *uc =
(wpi_ucode_info_t *)(desc + 1);
/* the microcontroller is ready */
WPI_DBG((WPI_DEBUG_FW,
"microcode alive notification version %x "
"alive %x\n", LE_32(uc->version),
LE_32(uc->valid)));
if (LE_32(uc->valid) != 1) {
WPI_DBG((WPI_DEBUG_FW,
"microcontroller initialization failed\n"));
}
break;
}
case WPI_STATE_CHANGED:
{
uint32_t *status = (uint32_t *)(desc + 1);
/* enabled/disabled notification */
WPI_DBG((WPI_DEBUG_RADIO, "state changed to %x\n",
LE_32(*status)));
if (LE_32(*status) & 1) {
/*
* the radio button has to be pushed(OFF). It
* is considered as a hw error, the
* wpi_thread() tries to recover it after the
* button is pushed again(ON)
*/
cmn_err(CE_NOTE,
"wpi: Radio transmitter is off\n");
sc->sc_ostate = sc->sc_ic.ic_state;
ieee80211_new_state(&sc->sc_ic,
IEEE80211_S_INIT, -1);
sc->sc_flags |=
(WPI_F_HW_ERR_RECOVER | WPI_F_RADIO_OFF);
}
break;
}
case WPI_START_SCAN:
{
wpi_start_scan_t *scan =
(wpi_start_scan_t *)(desc + 1);
WPI_DBG((WPI_DEBUG_SCAN,
"scanning channel %d status %x\n",
scan->chan, LE_32(scan->status)));
break;
}
case WPI_STOP_SCAN:
{
wpi_stop_scan_t *scan =
(wpi_stop_scan_t *)(desc + 1);
WPI_DBG((WPI_DEBUG_SCAN,
"completed channel %d (burst of %d) status %02x\n",
scan->chan, scan->nchan, scan->status));
sc->sc_scan_pending = 0;
sc->sc_scan_next++;
break;
}
default:
break;
}
sc->sc_rxq.cur = (sc->sc_rxq.cur + 1) % WPI_RX_RING_COUNT;
}
/* tell the firmware what we have processed */
hw = (hw == 0) ? WPI_RX_RING_COUNT - 1 : hw - 1;
WPI_WRITE(sc, WPI_RX_WIDX, hw & (~7));
mutex_enter(&sc->sc_glock);
sc->sc_notif_softint_pending = 0;
mutex_exit(&sc->sc_glock);
return (DDI_INTR_CLAIMED);
}
static uint_t
wpi_intr(caddr_t arg)
{
wpi_sc_t *sc = (wpi_sc_t *)arg;
uint32_t r, rfh;
mutex_enter(&sc->sc_glock);
if (sc->sc_flags & WPI_F_SUSPEND) {
mutex_exit(&sc->sc_glock);
return (DDI_INTR_UNCLAIMED);
}
r = WPI_READ(sc, WPI_INTR);
if (r == 0 || r == 0xffffffff) {
mutex_exit(&sc->sc_glock);
return (DDI_INTR_UNCLAIMED);
}
WPI_DBG((WPI_DEBUG_INTR, "interrupt reg %x\n", r));
rfh = WPI_READ(sc, WPI_INTR_STATUS);
/* disable interrupts */
WPI_WRITE(sc, WPI_MASK, 0);
/* ack interrupts */
WPI_WRITE(sc, WPI_INTR, r);
WPI_WRITE(sc, WPI_INTR_STATUS, rfh);
if (sc->sc_notif_softint_id == NULL) {
mutex_exit(&sc->sc_glock);
return (DDI_INTR_CLAIMED);
}
if (r & (WPI_SW_ERROR | WPI_HW_ERROR)) {
WPI_DBG((WPI_DEBUG_FW, "fatal firmware error\n"));
mutex_exit(&sc->sc_glock);
wpi_stop(sc);
if (!(sc->sc_flags & WPI_F_HW_ERR_RECOVER)) {
sc->sc_ostate = sc->sc_ic.ic_state;
}
/* not capable of fast recovery */
if (!WPI_CHK_FAST_RECOVER(sc))
ieee80211_new_state(&sc->sc_ic, IEEE80211_S_INIT, -1);
sc->sc_flags |= WPI_F_HW_ERR_RECOVER;
return (DDI_INTR_CLAIMED);
}
if ((r & (WPI_RX_INTR | WPI_RX_SWINT)) ||
(rfh & 0x40070000)) {
sc->sc_notif_softint_pending = 1;
ddi_trigger_softintr(sc->sc_notif_softint_id);
}
if (r & WPI_ALIVE_INTR) { /* firmware initialized */
sc->sc_flags |= WPI_F_FW_INIT;
cv_signal(&sc->sc_fw_cv);
}
/* re-enable interrupts */
WPI_WRITE(sc, WPI_MASK, WPI_INTR_MASK);
mutex_exit(&sc->sc_glock);
return (DDI_INTR_CLAIMED);
}
static uint8_t
wpi_plcp_signal(int rate)
{
switch (rate) {
/* CCK rates (returned values are device-dependent) */
case 2: return (10);
case 4: return (20);
case 11: return (55);
case 22: return (110);
/* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */
/* R1-R4 (ral/ural is R4-R1) */
case 12: return (0xd);
case 18: return (0xf);
case 24: return (0x5);
case 36: return (0x7);
case 48: return (0x9);
case 72: return (0xb);
case 96: return (0x1);
case 108: return (0x3);
/* unsupported rates (should not get there) */
default: return (0);
}
}
static mblk_t *
wpi_m_tx(void *arg, mblk_t *mp)
{
wpi_sc_t *sc = (wpi_sc_t *)arg;
ieee80211com_t *ic = &sc->sc_ic;
mblk_t *next;
if (sc->sc_flags & WPI_F_SUSPEND) {
freemsgchain(mp);
return (NULL);
}
if (ic->ic_state != IEEE80211_S_RUN) {
freemsgchain(mp);
return (NULL);
}
if ((sc->sc_flags & WPI_F_HW_ERR_RECOVER) &&
WPI_CHK_FAST_RECOVER(sc)) {
WPI_DBG((WPI_DEBUG_FW, "wpi_m_tx(): hold queue\n"));
return (mp);
}
while (mp != NULL) {
next = mp->b_next;
mp->b_next = NULL;
if (wpi_send(ic, mp, IEEE80211_FC0_TYPE_DATA) != 0) {
mp->b_next = next;
break;
}
mp = next;
}
return (mp);
}
/* ARGSUSED */
static int
wpi_send(ieee80211com_t *ic, mblk_t *mp, uint8_t type)
{
wpi_sc_t *sc = (wpi_sc_t *)ic;
wpi_tx_ring_t *ring;
wpi_tx_desc_t *desc;
wpi_tx_data_t *data;
wpi_tx_cmd_t *cmd;
wpi_cmd_data_t *tx;
ieee80211_node_t *in;
struct ieee80211_frame *wh;
struct ieee80211_key *k;
mblk_t *m, *m0;
int rate, hdrlen, len, mblen, off, err = WPI_SUCCESS;
ring = ((type & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_DATA) ?
(&sc->sc_txq[0]) : (&sc->sc_txq[1]);
data = &ring->data[ring->cur];
desc = data->desc;
cmd = data->cmd;
bzero(desc, sizeof (*desc));
bzero(cmd, sizeof (*cmd));
mutex_enter(&sc->sc_tx_lock);
if (sc->sc_flags & WPI_F_SUSPEND) {
mutex_exit(&sc->sc_tx_lock);
if ((type & IEEE80211_FC0_TYPE_MASK) !=
IEEE80211_FC0_TYPE_DATA) {
freemsg(mp);
}
err = ENXIO;
goto exit;
}
if (ring->queued > ring->count - 64) {
WPI_DBG((WPI_DEBUG_TX, "wpi_send(): no txbuf\n"));
sc->sc_need_reschedule = 1;
mutex_exit(&sc->sc_tx_lock);
if ((type & IEEE80211_FC0_TYPE_MASK) !=
IEEE80211_FC0_TYPE_DATA) {
freemsg(mp);
}
sc->sc_tx_nobuf++;
err = ENOMEM;
goto exit;
}
mutex_exit(&sc->sc_tx_lock);
hdrlen = sizeof (struct ieee80211_frame);
m = allocb(msgdsize(mp) + 32, BPRI_MED);
if (m == NULL) { /* can not alloc buf, drop this package */
cmn_err(CE_WARN,
"wpi_send(): failed to allocate msgbuf\n");
freemsg(mp);
err = WPI_SUCCESS;
goto exit;
}
for (off = 0, m0 = mp; m0 != NULL; m0 = m0->b_cont) {
mblen = MBLKL(m0);
(void) memcpy(m->b_rptr + off, m0->b_rptr, mblen);
off += mblen;
}
m->b_wptr += off;
freemsg(mp);
wh = (struct ieee80211_frame *)m->b_rptr;
in = ieee80211_find_txnode(ic, wh->i_addr1);
if (in == NULL) {
cmn_err(CE_WARN, "wpi_send(): failed to find tx node\n");
freemsg(m);
sc->sc_tx_err++;
err = WPI_SUCCESS;
goto exit;
}
(void) ieee80211_encap(ic, m, in);
cmd->code = WPI_CMD_TX_DATA;
cmd->flags = 0;
cmd->qid = ring->qid;
cmd->idx = ring->cur;
tx = (wpi_cmd_data_t *)cmd->data;
tx->flags = 0;
if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
tx->flags |= LE_32(WPI_TX_NEED_ACK);
} else {
tx->flags &= ~(LE_32(WPI_TX_NEED_ACK));
}
if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
k = ieee80211_crypto_encap(ic, m);
if (k == NULL) {
freemsg(m);
sc->sc_tx_err++;
err = WPI_SUCCESS;
goto exit;
}
if (k->wk_cipher->ic_cipher == IEEE80211_CIPHER_AES_CCM) {
tx->security = 2; /* for CCMP */
tx->flags |= LE_32(WPI_TX_NEED_ACK);
(void) memcpy(&tx->key, k->wk_key, k->wk_keylen);
}
/* packet header may have moved, reset our local pointer */
wh = (struct ieee80211_frame *)m->b_rptr;
}
len = msgdsize(m);
#ifdef DEBUG
if (wpi_dbg_flags & WPI_DEBUG_TX)
ieee80211_dump_pkt((uint8_t *)wh, hdrlen, 0, 0);
#endif
/* pickup a rate */
if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) ==
IEEE80211_FC0_TYPE_MGT) {
/* mgmt frames are sent at the lowest available bit-rate */
rate = 2;
} else {
if (ic->ic_fixed_rate != IEEE80211_FIXED_RATE_NONE) {
rate = ic->ic_fixed_rate;
} else
rate = in->in_rates.ir_rates[in->in_txrate];
}
rate &= IEEE80211_RATE_VAL;
WPI_DBG((WPI_DEBUG_RATECTL, "tx rate[%d of %d] = %x",
in->in_txrate, in->in_rates.ir_nrates, rate));
#ifdef WPI_BPF
#ifndef WPI_CURRENT
if (sc->sc_drvbpf != NULL) {
#else
if (bpf_peers_present(sc->sc_drvbpf)) {
#endif
struct wpi_tx_radiotap_header *tap = &sc->sc_txtap;
tap->wt_flags = 0;
tap->wt_chan_freq = LE_16(ic->ic_curchan->ic_freq);
tap->wt_chan_flags = LE_16(ic->ic_curchan->ic_flags);
tap->wt_rate = rate;
if (wh->i_fc[1] & IEEE80211_FC1_WEP)
tap->wt_flags |= IEEE80211_RADIOTAP_F_WEP;
bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_txtap_len, m0);
}
#endif
tx->flags |= (LE_32(WPI_TX_AUTO_SEQ));
tx->flags |= LE_32(WPI_TX_BT_DISABLE | WPI_TX_CALIBRATION);
/* retrieve destination node's id */
tx->id = IEEE80211_IS_MULTICAST(wh->i_addr1) ? WPI_ID_BROADCAST :
WPI_ID_BSS;
if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) ==
IEEE80211_FC0_TYPE_MGT) {
/* tell h/w to set timestamp in probe responses */
if ((wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) ==
IEEE80211_FC0_SUBTYPE_PROBE_RESP)
tx->flags |= LE_32(WPI_TX_INSERT_TSTAMP);
if (((wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) ==
IEEE80211_FC0_SUBTYPE_ASSOC_REQ) ||
((wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) ==
IEEE80211_FC0_SUBTYPE_REASSOC_REQ))
tx->timeout = 3;
else
tx->timeout = 2;
} else
tx->timeout = 0;
tx->rate = wpi_plcp_signal(rate);
/* be very persistant at sending frames out */
tx->rts_ntries = 7;
tx->data_ntries = 15;
tx->cck_mask = 0x0f;
tx->ofdm_mask = 0xff;
tx->lifetime = LE_32(0xffffffff);
tx->len = LE_16(len);
/* save and trim IEEE802.11 header */
(void) memcpy(tx + 1, m->b_rptr, hdrlen);
m->b_rptr += hdrlen;
(void) memcpy(data->dma_data.mem_va, m->b_rptr, len - hdrlen);
WPI_DBG((WPI_DEBUG_TX, "sending data: qid=%d idx=%d len=%d", ring->qid,
ring->cur, len));
/* first scatter/gather segment is used by the tx data command */
desc->flags = LE_32(WPI_PAD32(len) << 28 | (2) << 24);
desc->segs[0].addr = LE_32(data->paddr_cmd);
desc->segs[0].len = LE_32(
roundup(4 + sizeof (wpi_cmd_data_t) + hdrlen, 4));
desc->segs[1].addr = LE_32(data->dma_data.cookie.dmac_address);
desc->segs[1].len = LE_32(len - hdrlen);
WPI_DMA_SYNC(data->dma_data, DDI_DMA_SYNC_FORDEV);
WPI_DMA_SYNC(ring->dma_desc, DDI_DMA_SYNC_FORDEV);
mutex_enter(&sc->sc_tx_lock);
ring->queued++;
mutex_exit(&sc->sc_tx_lock);
/* kick ring */
ring->cur = (ring->cur + 1) % WPI_TX_RING_COUNT;
WPI_WRITE(sc, WPI_TX_WIDX, ring->qid << 8 | ring->cur);
freemsg(m);
/* release node reference */
ieee80211_free_node(in);
ic->ic_stats.is_tx_bytes += len;
ic->ic_stats.is_tx_frags++;
if (sc->sc_tx_timer == 0)
sc->sc_tx_timer = 5;
exit:
return (err);
}
static void
wpi_m_ioctl(void* arg, queue_t *wq, mblk_t *mp)
{
wpi_sc_t *sc = (wpi_sc_t *)arg;
ieee80211com_t *ic = &sc->sc_ic;
int err;
err = ieee80211_ioctl(ic, wq, mp);
if (err == ENETRESET) {
/*
* This is special for the hidden AP connection.
* In any case, we should make sure only one 'scan'
* in the driver for a 'connect' CLI command. So
* when connecting to a hidden AP, the scan is just
* sent out to the air when we know the desired
* essid of the AP we want to connect.
*/
if (ic->ic_des_esslen) {
if (sc->sc_flags & WPI_F_RUNNING) {
wpi_m_stop(sc);
(void) wpi_m_start(sc);
(void) ieee80211_new_state(ic,
IEEE80211_S_SCAN, -1);
}
}
}
}
/*
* Callback functions for get/set properties
*/
/* ARGSUSED */
static int
wpi_m_getprop(void *arg, const char *pr_name, mac_prop_id_t wldp_pr_name,
uint_t wldp_length, void *wldp_buf)
{
int err = 0;
wpi_sc_t *sc = (wpi_sc_t *)arg;
err = ieee80211_getprop(&sc->sc_ic, pr_name, wldp_pr_name,
wldp_length, wldp_buf);
return (err);
}
static void
wpi_m_propinfo(void *arg, const char *pr_name, mac_prop_id_t wldp_pr_num,
mac_prop_info_handle_t mph)
{
wpi_sc_t *sc = (wpi_sc_t *)arg;
ieee80211_propinfo(&sc->sc_ic, pr_name, wldp_pr_num, mph);
}
static int
wpi_m_setprop(void *arg, const char *pr_name, mac_prop_id_t wldp_pr_name,
uint_t wldp_length, const void *wldp_buf)
{
int err;
wpi_sc_t *sc = (wpi_sc_t *)arg;
ieee80211com_t *ic = &sc->sc_ic;
err = ieee80211_setprop(ic, pr_name, wldp_pr_name,
wldp_length, wldp_buf);
if (err == ENETRESET) {
if (ic->ic_des_esslen) {
if (sc->sc_flags & WPI_F_RUNNING) {
wpi_m_stop(sc);
(void) wpi_m_start(sc);
(void) ieee80211_new_state(ic,
IEEE80211_S_SCAN, -1);
}
}
err = 0;
}
return (err);
}
/*ARGSUSED*/
static int
wpi_m_stat(void *arg, uint_t stat, uint64_t *val)
{
wpi_sc_t *sc = (wpi_sc_t *)arg;
ieee80211com_t *ic = &sc->sc_ic;
ieee80211_node_t *in;
mutex_enter(&sc->sc_glock);
switch (stat) {
case MAC_STAT_IFSPEED:
in = ic->ic_bss;
*val = ((ic->ic_fixed_rate == IEEE80211_FIXED_RATE_NONE) ?
IEEE80211_RATE(in->in_txrate) :
ic->ic_fixed_rate) / 2 * 1000000;
break;
case MAC_STAT_NOXMTBUF:
*val = sc->sc_tx_nobuf;
break;
case MAC_STAT_NORCVBUF:
*val = sc->sc_rx_nobuf;
break;
case MAC_STAT_IERRORS:
*val = sc->sc_rx_err;
break;
case MAC_STAT_RBYTES:
*val = ic->ic_stats.is_rx_bytes;
break;
case MAC_STAT_IPACKETS:
*val = ic->ic_stats.is_rx_frags;
break;
case MAC_STAT_OBYTES:
*val = ic->ic_stats.is_tx_bytes;
break;
case MAC_STAT_OPACKETS:
*val = ic->ic_stats.is_tx_frags;
break;
case MAC_STAT_OERRORS:
case WIFI_STAT_TX_FAILED:
*val = sc->sc_tx_err;
break;
case WIFI_STAT_TX_RETRANS:
*val = sc->sc_tx_retries;
break;
case WIFI_STAT_FCS_ERRORS:
case WIFI_STAT_WEP_ERRORS:
case WIFI_STAT_TX_FRAGS:
case WIFI_STAT_MCAST_TX:
case WIFI_STAT_RTS_SUCCESS:
case WIFI_STAT_RTS_FAILURE:
case WIFI_STAT_ACK_FAILURE:
case WIFI_STAT_RX_FRAGS:
case WIFI_STAT_MCAST_RX:
case WIFI_STAT_RX_DUPS:
mutex_exit(&sc->sc_glock);
return (ieee80211_stat(ic, stat, val));
default:
mutex_exit(&sc->sc_glock);
return (ENOTSUP);
}
mutex_exit(&sc->sc_glock);
return (WPI_SUCCESS);
}
static int
wpi_m_start(void *arg)
{
wpi_sc_t *sc = (wpi_sc_t *)arg;
ieee80211com_t *ic = &sc->sc_ic;
int err;
err = wpi_init(sc);
if (err != WPI_SUCCESS) {
wpi_stop(sc);
DELAY(1000000);
err = wpi_init(sc);
}
if (err) {
/*
* The hw init err(eg. RF is OFF). Return Success to make
* the 'plumb' succeed. The wpi_thread() tries to re-init
* background.
*/
mutex_enter(&sc->sc_glock);
sc->sc_flags |= WPI_F_HW_ERR_RECOVER;
mutex_exit(&sc->sc_glock);
return (WPI_SUCCESS);
}
ieee80211_new_state(ic, IEEE80211_S_INIT, -1);
mutex_enter(&sc->sc_glock);
sc->sc_flags |= WPI_F_RUNNING;
mutex_exit(&sc->sc_glock);
return (WPI_SUCCESS);
}
static void
wpi_m_stop(void *arg)
{
wpi_sc_t *sc = (wpi_sc_t *)arg;
ieee80211com_t *ic = &sc->sc_ic;
wpi_stop(sc);
ieee80211_new_state(ic, IEEE80211_S_INIT, -1);
mutex_enter(&sc->sc_mt_lock);
sc->sc_flags &= ~WPI_F_HW_ERR_RECOVER;
sc->sc_flags &= ~WPI_F_RATE_AUTO_CTL;
mutex_exit(&sc->sc_mt_lock);
mutex_enter(&sc->sc_glock);
sc->sc_flags &= ~WPI_F_RUNNING;
mutex_exit(&sc->sc_glock);
}
/*ARGSUSED*/
static int
wpi_m_unicst(void *arg, const uint8_t *macaddr)
{
wpi_sc_t *sc = (wpi_sc_t *)arg;
ieee80211com_t *ic = &sc->sc_ic;
int err;
if (!IEEE80211_ADDR_EQ(ic->ic_macaddr, macaddr)) {
IEEE80211_ADDR_COPY(ic->ic_macaddr, macaddr);
mutex_enter(&sc->sc_glock);
err = wpi_config(sc);
mutex_exit(&sc->sc_glock);
if (err != WPI_SUCCESS) {
cmn_err(CE_WARN,
"wpi_m_unicst(): "
"failed to configure device\n");
goto fail;
}
}
return (WPI_SUCCESS);
fail:
return (err);
}
/*ARGSUSED*/
static int
wpi_m_multicst(void *arg, boolean_t add, const uint8_t *m)
{
return (WPI_SUCCESS);
}
/*ARGSUSED*/
static int
wpi_m_promisc(void *arg, boolean_t on)
{
return (WPI_SUCCESS);
}
static void
wpi_thread(wpi_sc_t *sc)
{
ieee80211com_t *ic = &sc->sc_ic;
clock_t clk;
int times = 0, err, n = 0, timeout = 0;
uint32_t tmp;
mutex_enter(&sc->sc_mt_lock);
while (sc->sc_mf_thread_switch) {
tmp = WPI_READ(sc, WPI_GPIO_CTL);
if (tmp & WPI_GPIO_HW_RF_KILL) {
sc->sc_flags &= ~WPI_F_RADIO_OFF;
} else {
sc->sc_flags |= WPI_F_RADIO_OFF;
}
/*
* If in SUSPEND or the RF is OFF, do nothing
*/
if ((sc->sc_flags & WPI_F_SUSPEND) ||
(sc->sc_flags & WPI_F_RADIO_OFF)) {
mutex_exit(&sc->sc_mt_lock);
delay(drv_usectohz(100000));
mutex_enter(&sc->sc_mt_lock);
continue;
}
/*
* recovery fatal error
*/
if (ic->ic_mach &&
(sc->sc_flags & WPI_F_HW_ERR_RECOVER)) {
WPI_DBG((WPI_DEBUG_FW,
"wpi_thread(): "
"try to recover fatal hw error: %d\n", times++));
wpi_stop(sc);
if (WPI_CHK_FAST_RECOVER(sc)) {
/* save runtime configuration */
bcopy(&sc->sc_config, &sc->sc_config_save,
sizeof (sc->sc_config));
} else {
mutex_exit(&sc->sc_mt_lock);
ieee80211_new_state(ic, IEEE80211_S_INIT, -1);
delay(drv_usectohz(2000000));
mutex_enter(&sc->sc_mt_lock);
}
err = wpi_init(sc);
if (err != WPI_SUCCESS) {
n++;
if (n < 3)
continue;
}
n = 0;
if (!err)
sc->sc_flags |= WPI_F_RUNNING;
if (!WPI_CHK_FAST_RECOVER(sc) ||
wpi_fast_recover(sc) != WPI_SUCCESS) {
sc->sc_flags &= ~WPI_F_HW_ERR_RECOVER;
mutex_exit(&sc->sc_mt_lock);
delay(drv_usectohz(2000000));
if (sc->sc_ostate != IEEE80211_S_INIT)
ieee80211_new_state(ic,
IEEE80211_S_SCAN, 0);
mutex_enter(&sc->sc_mt_lock);
}
}
if (ic->ic_mach && (sc->sc_flags & WPI_F_LAZY_RESUME)) {
WPI_DBG((WPI_DEBUG_RESUME,
"wpi_thread(): "
"lazy resume\n"));
sc->sc_flags &= ~WPI_F_LAZY_RESUME;
mutex_exit(&sc->sc_mt_lock);
/*
* NB: under WPA mode, this call hangs (door problem?)
* when called in wpi_attach() and wpi_detach() while
* system is in the procedure of CPR. To be safe, let
* the thread do this.
*/
ieee80211_new_state(&sc->sc_ic, IEEE80211_S_INIT, -1);
mutex_enter(&sc->sc_mt_lock);
}
/*
* scan next channel
*/
if (ic->ic_mach &&
(sc->sc_flags & WPI_F_SCANNING) && sc->sc_scan_next) {
WPI_DBG((WPI_DEBUG_SCAN,
"wpi_thread(): "
"wait for probe response\n"));
sc->sc_scan_next--;
mutex_exit(&sc->sc_mt_lock);
delay(drv_usectohz(200000));
if (sc->sc_flags & WPI_F_SCANNING)
ieee80211_next_scan(ic);
mutex_enter(&sc->sc_mt_lock);
}
/*
* rate ctl
*/
if (ic->ic_mach &&
(sc->sc_flags & WPI_F_RATE_AUTO_CTL)) {
clk = ddi_get_lbolt();
if (clk > sc->sc_clk + drv_usectohz(500000)) {
wpi_amrr_timeout(sc);
}
}
mutex_exit(&sc->sc_mt_lock);
delay(drv_usectohz(100000));
mutex_enter(&sc->sc_mt_lock);
if (sc->sc_tx_timer) {
timeout++;
if (timeout == 10) {
sc->sc_tx_timer--;
if (sc->sc_tx_timer == 0) {
sc->sc_flags |= WPI_F_HW_ERR_RECOVER;
sc->sc_ostate = IEEE80211_S_RUN;
WPI_DBG((WPI_DEBUG_FW,
"wpi_thread(): send fail\n"));
}
timeout = 0;
}
}
}
sc->sc_mf_thread = NULL;
cv_signal(&sc->sc_mt_cv);
mutex_exit(&sc->sc_mt_lock);
}
/*
* Extract various information from EEPROM.
*/
static void
wpi_read_eeprom(wpi_sc_t *sc)
{
ieee80211com_t *ic = &sc->sc_ic;
uint16_t val;
int i;
/* read MAC address */
val = wpi_read_prom_word(sc, WPI_EEPROM_MAC + 0);
ic->ic_macaddr[0] = val & 0xff;
ic->ic_macaddr[1] = val >> 8;
val = wpi_read_prom_word(sc, WPI_EEPROM_MAC + 1);
ic->ic_macaddr[2] = val & 0xff;
ic->ic_macaddr[3] = val >> 8;
val = wpi_read_prom_word(sc, WPI_EEPROM_MAC + 2);
ic->ic_macaddr[4] = val & 0xff;
ic->ic_macaddr[5] = val >> 8;
WPI_DBG((WPI_DEBUG_EEPROM,
"mac:%2x:%2x:%2x:%2x:%2x:%2x\n",
ic->ic_macaddr[0], ic->ic_macaddr[1],
ic->ic_macaddr[2], ic->ic_macaddr[3],
ic->ic_macaddr[4], ic->ic_macaddr[5]));
/* read power settings for 2.4GHz channels */
for (i = 0; i < 14; i++) {
sc->sc_pwr1[i] = wpi_read_prom_word(sc, WPI_EEPROM_PWR1 + i);
sc->sc_pwr2[i] = wpi_read_prom_word(sc, WPI_EEPROM_PWR2 + i);
WPI_DBG((WPI_DEBUG_EEPROM,
"channel %d pwr1 0x%04x pwr2 0x%04x\n", i + 1,
sc->sc_pwr1[i], sc->sc_pwr2[i]));
}
}
/*
* Send a command to the firmware.
*/
static int
wpi_cmd(wpi_sc_t *sc, int code, const void *buf, int size, int async)
{
wpi_tx_ring_t *ring = &sc->sc_cmdq;
wpi_tx_desc_t *desc;
wpi_tx_cmd_t *cmd;
ASSERT(size <= sizeof (cmd->data));
ASSERT(mutex_owned(&sc->sc_glock));
WPI_DBG((WPI_DEBUG_CMD, "wpi_cmd() # code[%d]", code));
desc = ring->data[ring->cur].desc;
cmd = ring->data[ring->cur].cmd;
cmd->code = (uint8_t)code;
cmd->flags = 0;
cmd->qid = ring->qid;
cmd->idx = ring->cur;
(void) memcpy(cmd->data, buf, size);
desc->flags = LE_32(WPI_PAD32(size) << 28 | 1 << 24);
desc->segs[0].addr = ring->data[ring->cur].paddr_cmd;
desc->segs[0].len = 4 + size;
/* kick cmd ring */
ring->cur = (ring->cur + 1) % WPI_CMD_RING_COUNT;
WPI_WRITE(sc, WPI_TX_WIDX, ring->qid << 8 | ring->cur);
if (async)
return (WPI_SUCCESS);
else {
clock_t clk;
sc->sc_flags &= ~WPI_F_CMD_DONE;
clk = ddi_get_lbolt() + drv_usectohz(2000000);
while (!(sc->sc_flags & WPI_F_CMD_DONE)) {
if (cv_timedwait(&sc->sc_cmd_cv, &sc->sc_glock, clk)
< 0)
break;
}
if (sc->sc_flags & WPI_F_CMD_DONE)
return (WPI_SUCCESS);
else
return (WPI_FAIL);
}
}
/*
* Configure h/w multi-rate retries.
*/
static int
wpi_mrr_setup(wpi_sc_t *sc)
{
wpi_mrr_setup_t mrr;
int i, err;
/* CCK rates (not used with 802.11a) */
for (i = WPI_CCK1; i <= WPI_CCK11; i++) {
mrr.rates[i].flags = 0;
mrr.rates[i].signal = wpi_ridx_to_signal[i];
/* fallback to the immediate lower CCK rate (if any) */
mrr.rates[i].next = (i == WPI_CCK1) ? WPI_CCK1 : i - 1;
/* try one time at this rate before falling back to "next" */
mrr.rates[i].ntries = 1;
}
/* OFDM rates (not used with 802.11b) */
for (i = WPI_OFDM6; i <= WPI_OFDM54; i++) {
mrr.rates[i].flags = 0;
mrr.rates[i].signal = wpi_ridx_to_signal[i];
/* fallback to the immediate lower OFDM rate (if any) */
mrr.rates[i].next = (i == WPI_OFDM6) ? WPI_OFDM6 : i - 1;
/* try one time at this rate before falling back to "next" */
mrr.rates[i].ntries = 1;
}
/* setup MRR for control frames */
mrr.which = LE_32(WPI_MRR_CTL);
err = wpi_cmd(sc, WPI_CMD_MRR_SETUP, &mrr, sizeof (mrr), 1);
if (err != WPI_SUCCESS) {
WPI_DBG((WPI_DEBUG_MRR,
"could not setup MRR for control frames\n"));
return (err);
}
/* setup MRR for data frames */
mrr.which = LE_32(WPI_MRR_DATA);
err = wpi_cmd(sc, WPI_CMD_MRR_SETUP, &mrr, sizeof (mrr), 1);
if (err != WPI_SUCCESS) {
WPI_DBG((WPI_DEBUG_MRR,
"could not setup MRR for data frames\n"));
return (err);
}
return (WPI_SUCCESS);
}
static void
wpi_set_led(wpi_sc_t *sc, uint8_t which, uint8_t off, uint8_t on)
{
wpi_cmd_led_t led;
led.which = which;
led.unit = LE_32(100000); /* on/off in unit of 100ms */
led.off = off;
led.on = on;
(void) wpi_cmd(sc, WPI_CMD_SET_LED, &led, sizeof (led), 1);
}
static int
wpi_auth(wpi_sc_t *sc)
{
ieee80211com_t *ic = &sc->sc_ic;
ieee80211_node_t *in = ic->ic_bss;
wpi_node_t node;
int err;
/* update adapter's configuration */
IEEE80211_ADDR_COPY(sc->sc_config.bssid, in->in_bssid);
sc->sc_config.chan = ieee80211_chan2ieee(ic, in->in_chan);
if (ic->ic_curmode == IEEE80211_MODE_11B) {
sc->sc_config.cck_mask = 0x03;
sc->sc_config.ofdm_mask = 0;
} else if ((in->in_chan != IEEE80211_CHAN_ANYC) &&
(IEEE80211_IS_CHAN_5GHZ(in->in_chan))) {
sc->sc_config.cck_mask = 0;
sc->sc_config.ofdm_mask = 0x15;
} else { /* assume 802.11b/g */
sc->sc_config.cck_mask = 0x0f;
sc->sc_config.ofdm_mask = 0xff;
}
WPI_DBG((WPI_DEBUG_80211, "config chan %d flags %x cck %x ofdm %x"
" bssid:%02x:%02x:%02x:%02x:%02x:%2x\n",
sc->sc_config.chan, sc->sc_config.flags,
sc->sc_config.cck_mask, sc->sc_config.ofdm_mask,
sc->sc_config.bssid[0], sc->sc_config.bssid[1],
sc->sc_config.bssid[2], sc->sc_config.bssid[3],
sc->sc_config.bssid[4], sc->sc_config.bssid[5]));
err = wpi_cmd(sc, WPI_CMD_CONFIGURE, &sc->sc_config,
sizeof (wpi_config_t), 1);
if (err != WPI_SUCCESS) {
cmn_err(CE_WARN, "wpi_auth(): failed to configurate chan%d\n",
sc->sc_config.chan);
return (err);
}
/* add default node */
(void) memset(&node, 0, sizeof (node));
IEEE80211_ADDR_COPY(node.bssid, in->in_bssid);
node.id = WPI_ID_BSS;
node.rate = wpi_plcp_signal(2);
err = wpi_cmd(sc, WPI_CMD_ADD_NODE, &node, sizeof (node), 1);
if (err != WPI_SUCCESS) {
cmn_err(CE_WARN, "wpi_auth(): failed to add BSS node\n");
return (err);
}
err = wpi_mrr_setup(sc);
if (err != WPI_SUCCESS) {
cmn_err(CE_WARN, "wpi_auth(): failed to setup MRR\n");
return (err);
}
return (WPI_SUCCESS);
}
/*
* Send a scan request to the firmware.
*/
static int
wpi_scan(wpi_sc_t *sc)
{
ieee80211com_t *ic = &sc->sc_ic;
wpi_tx_ring_t *ring = &sc->sc_cmdq;
wpi_tx_desc_t *desc;
wpi_tx_data_t *data;
wpi_tx_cmd_t *cmd;
wpi_scan_hdr_t *hdr;
wpi_scan_chan_t *chan;
struct ieee80211_frame *wh;
ieee80211_node_t *in = ic->ic_bss;
uint8_t essid[IEEE80211_NWID_LEN+1];
struct ieee80211_rateset *rs;
enum ieee80211_phymode mode;
uint8_t *frm;
int i, pktlen, nrates;
/* previous scan not completed */
if (sc->sc_scan_pending) {
WPI_DBG((WPI_DEBUG_SCAN, "previous scan not completed\n"));
return (WPI_SUCCESS);
}
data = &ring->data[ring->cur];
desc = data->desc;
cmd = (wpi_tx_cmd_t *)data->dma_data.mem_va;
cmd->code = WPI_CMD_SCAN;
cmd->flags = 0;
cmd->qid = ring->qid;
cmd->idx = ring->cur;
hdr = (wpi_scan_hdr_t *)cmd->data;
(void) memset(hdr, 0, sizeof (wpi_scan_hdr_t));
hdr->first = 1;
hdr->nchan = 1;
hdr->len = hdr->nchan * sizeof (wpi_scan_chan_t);
hdr->quiet = LE_16(50);
hdr->threshold = LE_16(1);
hdr->filter = LE_32(5);
hdr->rate = wpi_plcp_signal(2);
hdr->id = WPI_ID_BROADCAST;
hdr->mask = LE_32(0xffffffff);
hdr->esslen = ic->ic_des_esslen;
if (ic->ic_des_esslen) {
bcopy(ic->ic_des_essid, essid, ic->ic_des_esslen);
essid[ic->ic_des_esslen] = '\0';
WPI_DBG((WPI_DEBUG_SCAN, "directed scan %s\n", essid));
bcopy(ic->ic_des_essid, hdr->essid, ic->ic_des_esslen);
} else {
bzero(hdr->essid, sizeof (hdr->essid));
}
/*
* Build a probe request frame. Most of the following code is a
* copy & paste of what is done in net80211. Unfortunately, the
* functions to add IEs are static and thus can't be reused here.
*/
wh = (struct ieee80211_frame *)(hdr + 1);
wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT |
IEEE80211_FC0_SUBTYPE_PROBE_REQ;
wh->i_fc[1] = IEEE80211_FC1_DIR_NODS;
(void) memset(wh->i_addr1, 0xff, 6);
IEEE80211_ADDR_COPY(wh->i_addr2, ic->ic_macaddr);
(void) memset(wh->i_addr3, 0xff, 6);
*(uint16_t *)&wh->i_dur[0] = 0; /* filled by h/w */
*(uint16_t *)&wh->i_seq[0] = 0; /* filled by h/w */
frm = (uint8_t *)(wh + 1);
/* add essid IE */
if (in->in_esslen) {
bcopy(in->in_essid, essid, in->in_esslen);
essid[in->in_esslen] = '\0';
WPI_DBG((WPI_DEBUG_SCAN, "probe with ESSID %s\n",
essid));
}
*frm++ = IEEE80211_ELEMID_SSID;
*frm++ = in->in_esslen;
(void) memcpy(frm, in->in_essid, in->in_esslen);
frm += in->in_esslen;
mode = ieee80211_chan2mode(ic, ic->ic_curchan);
rs = &ic->ic_sup_rates[mode];
/* add supported rates IE */
*frm++ = IEEE80211_ELEMID_RATES;
nrates = rs->ir_nrates;
if (nrates > IEEE80211_RATE_SIZE)
nrates = IEEE80211_RATE_SIZE;
*frm++ = (uint8_t)nrates;
(void) memcpy(frm, rs->ir_rates, nrates);
frm += nrates;
/* add supported xrates IE */
if (rs->ir_nrates > IEEE80211_RATE_SIZE) {
nrates = rs->ir_nrates - IEEE80211_RATE_SIZE;
*frm++ = IEEE80211_ELEMID_XRATES;
*frm++ = (uint8_t)nrates;
(void) memcpy(frm, rs->ir_rates + IEEE80211_RATE_SIZE, nrates);
frm += nrates;
}
/* add optionnal IE (usually an RSN IE) */
if (ic->ic_opt_ie != NULL) {
(void) memcpy(frm, ic->ic_opt_ie, ic->ic_opt_ie_len);
frm += ic->ic_opt_ie_len;
}
/* setup length of probe request */
hdr->pbrlen = LE_16((uintptr_t)frm - (uintptr_t)wh);
/* align on a 4-byte boundary */
chan = (wpi_scan_chan_t *)frm;
for (i = 1; i <= hdr->nchan; i++, chan++) {
if (ic->ic_des_esslen) {
chan->flags = 0x3;
} else {
chan->flags = 0x1;
}
chan->chan = ieee80211_chan2ieee(ic, ic->ic_curchan);
chan->magic = LE_16(0x62ab);
chan->active = LE_16(50);
chan->passive = LE_16(120);
frm += sizeof (wpi_scan_chan_t);
}
pktlen = (uintptr_t)frm - (uintptr_t)cmd;
desc->flags = LE_32(WPI_PAD32(pktlen) << 28 | 1 << 24);
desc->segs[0].addr = LE_32(data->dma_data.cookie.dmac_address);
desc->segs[0].len = LE_32(pktlen);
WPI_DMA_SYNC(data->dma_data, DDI_DMA_SYNC_FORDEV);
WPI_DMA_SYNC(ring->dma_desc, DDI_DMA_SYNC_FORDEV);
/* kick cmd ring */
ring->cur = (ring->cur + 1) % WPI_CMD_RING_COUNT;
WPI_WRITE(sc, WPI_TX_WIDX, ring->qid << 8 | ring->cur);
sc->sc_scan_pending = 1;
return (WPI_SUCCESS); /* will be notified async. of failure/success */
}
static int
wpi_config(wpi_sc_t *sc)
{
ieee80211com_t *ic = &sc->sc_ic;
wpi_txpower_t txpower;
wpi_power_t power;
#ifdef WPI_BLUE_COEXISTENCE
wpi_bluetooth_t bluetooth;
#endif
wpi_node_t node;
int err;
/* Intel's binary only daemon is a joke.. */
/* set Tx power for 2.4GHz channels (values read from EEPROM) */
(void) memset(&txpower, 0, sizeof (txpower));
(void) memcpy(txpower.pwr1, sc->sc_pwr1, 14 * sizeof (uint16_t));
(void) memcpy(txpower.pwr2, sc->sc_pwr2, 14 * sizeof (uint16_t));
err = wpi_cmd(sc, WPI_CMD_TXPOWER, &txpower, sizeof (txpower), 0);
if (err != WPI_SUCCESS) {
cmn_err(CE_WARN, "wpi_config(): failed to set txpower\n");
return (err);
}
/* set power mode */
(void) memset(&power, 0, sizeof (power));
power.flags = LE_32(0x8);
err = wpi_cmd(sc, WPI_CMD_SET_POWER_MODE, &power, sizeof (power), 0);
if (err != WPI_SUCCESS) {
cmn_err(CE_WARN, "wpi_config(): failed to set power mode\n");
return (err);
}
#ifdef WPI_BLUE_COEXISTENCE
/* configure bluetooth coexistence */
(void) memset(&bluetooth, 0, sizeof (bluetooth));
bluetooth.flags = 3;
bluetooth.lead = 0xaa;
bluetooth.kill = 1;
err = wpi_cmd(sc, WPI_CMD_BLUETOOTH, &bluetooth,
sizeof (bluetooth), 0);
if (err != WPI_SUCCESS) {
cmn_err(CE_WARN,
"wpi_config(): "
"failed to configurate bluetooth coexistence\n");
return (err);
}
#endif
/* configure adapter */
(void) memset(&sc->sc_config, 0, sizeof (wpi_config_t));
IEEE80211_ADDR_COPY(sc->sc_config.myaddr, ic->ic_macaddr);
sc->sc_config.chan = ieee80211_chan2ieee(ic, ic->ic_curchan);
sc->sc_config.flags = LE_32(WPI_CONFIG_TSF | WPI_CONFIG_AUTO |
WPI_CONFIG_24GHZ);
sc->sc_config.filter = 0;
switch (ic->ic_opmode) {
case IEEE80211_M_STA:
sc->sc_config.mode = WPI_MODE_STA;
sc->sc_config.filter |= LE_32(WPI_FILTER_MULTICAST);
break;
case IEEE80211_M_IBSS:
case IEEE80211_M_AHDEMO:
sc->sc_config.mode = WPI_MODE_IBSS;
break;
case IEEE80211_M_HOSTAP:
sc->sc_config.mode = WPI_MODE_HOSTAP;
break;
case IEEE80211_M_MONITOR:
sc->sc_config.mode = WPI_MODE_MONITOR;
sc->sc_config.filter |= LE_32(WPI_FILTER_MULTICAST |
WPI_FILTER_CTL | WPI_FILTER_PROMISC);
break;
}
sc->sc_config.cck_mask = 0x0f; /* not yet negotiated */
sc->sc_config.ofdm_mask = 0xff; /* not yet negotiated */
err = wpi_cmd(sc, WPI_CMD_CONFIGURE, &sc->sc_config,
sizeof (wpi_config_t), 0);
if (err != WPI_SUCCESS) {
cmn_err(CE_WARN, "wpi_config(): "
"failed to set configure command\n");
return (err);
}
/* add broadcast node */
(void) memset(&node, 0, sizeof (node));
(void) memset(node.bssid, 0xff, 6);
node.id = WPI_ID_BROADCAST;
node.rate = wpi_plcp_signal(2);
err = wpi_cmd(sc, WPI_CMD_ADD_NODE, &node, sizeof (node), 0);
if (err != WPI_SUCCESS) {
cmn_err(CE_WARN, "wpi_config(): "
"failed to add broadcast node\n");
return (err);
}
return (WPI_SUCCESS);
}
static void
wpi_stop_master(wpi_sc_t *sc)
{
uint32_t tmp;
int ntries;
tmp = WPI_READ(sc, WPI_RESET);
WPI_WRITE(sc, WPI_RESET, tmp | WPI_STOP_MASTER);
tmp = WPI_READ(sc, WPI_GPIO_CTL);
if ((tmp & WPI_GPIO_PWR_STATUS) == WPI_GPIO_PWR_SLEEP)
return; /* already asleep */
for (ntries = 0; ntries < 2000; ntries++) {
if (WPI_READ(sc, WPI_RESET) & WPI_MASTER_DISABLED)
break;
DELAY(1000);
}
if (ntries == 2000)
WPI_DBG((WPI_DEBUG_HW, "timeout waiting for master\n"));
}
static int
wpi_power_up(wpi_sc_t *sc)
{
uint32_t tmp;
int ntries;
wpi_mem_lock(sc);
tmp = wpi_mem_read(sc, WPI_MEM_POWER);
wpi_mem_write(sc, WPI_MEM_POWER, tmp & ~0x03000000);
wpi_mem_unlock(sc);
for (ntries = 0; ntries < 5000; ntries++) {
if (WPI_READ(sc, WPI_GPIO_STATUS) & WPI_POWERED)
break;
DELAY(10);
}
if (ntries == 5000) {
cmn_err(CE_WARN,
"wpi_power_up(): timeout waiting for NIC to power up\n");
return (ETIMEDOUT);
}
return (WPI_SUCCESS);
}
static int
wpi_reset(wpi_sc_t *sc)
{
uint32_t tmp;
int ntries;
/* clear any pending interrupts */
WPI_WRITE(sc, WPI_INTR, 0xffffffff);
tmp = WPI_READ(sc, WPI_PLL_CTL);
WPI_WRITE(sc, WPI_PLL_CTL, tmp | WPI_PLL_INIT);
tmp = WPI_READ(sc, WPI_CHICKEN);
WPI_WRITE(sc, WPI_CHICKEN, tmp | WPI_CHICKEN_RXNOLOS);
tmp = WPI_READ(sc, WPI_GPIO_CTL);
WPI_WRITE(sc, WPI_GPIO_CTL, tmp | WPI_GPIO_INIT);
/* wait for clock stabilization */
for (ntries = 0; ntries < 1000; ntries++) {
if (WPI_READ(sc, WPI_GPIO_CTL) & WPI_GPIO_CLOCK)
break;
DELAY(10);
}
if (ntries == 1000) {
cmn_err(CE_WARN,
"wpi_reset(): timeout waiting for clock stabilization\n");
return (ETIMEDOUT);
}
/* initialize EEPROM */
tmp = WPI_READ(sc, WPI_EEPROM_STATUS);
if ((tmp & WPI_EEPROM_VERSION) == 0) {
cmn_err(CE_WARN, "wpi_reset(): EEPROM not found\n");
return (EIO);
}
WPI_WRITE(sc, WPI_EEPROM_STATUS, tmp & ~WPI_EEPROM_LOCKED);
return (WPI_SUCCESS);
}
static void
wpi_hw_config(wpi_sc_t *sc)
{
uint16_t val;
uint32_t hw;
/* voodoo from the Linux "driver".. */
hw = WPI_READ(sc, WPI_HWCONFIG);
if ((sc->sc_rev & 0xc0) == 0x40)
hw |= WPI_HW_ALM_MB;
else if (!(sc->sc_rev & 0x80))
hw |= WPI_HW_ALM_MM;
val = wpi_read_prom_word(sc, WPI_EEPROM_CAPABILITIES);
if ((val & 0xff) == 0x80)
hw |= WPI_HW_SKU_MRC;
val = wpi_read_prom_word(sc, WPI_EEPROM_REVISION);
hw &= ~WPI_HW_REV_D;
if ((val & 0xf0) == 0xd0)
hw |= WPI_HW_REV_D;
val = wpi_read_prom_word(sc, WPI_EEPROM_TYPE);
if ((val & 0xff) > 1)
hw |= WPI_HW_TYPE_B;
WPI_DBG((WPI_DEBUG_HW, "setting h/w config %x\n", hw));
WPI_WRITE(sc, WPI_HWCONFIG, hw);
}
static int
wpi_init(wpi_sc_t *sc)
{
uint32_t tmp;
int qid, ntries, err;
clock_t clk;
mutex_enter(&sc->sc_glock);
sc->sc_flags &= ~WPI_F_FW_INIT;
(void) wpi_reset(sc);
wpi_mem_lock(sc);
wpi_mem_write(sc, WPI_MEM_CLOCK1, 0xa00);
DELAY(20);
tmp = wpi_mem_read(sc, WPI_MEM_PCIDEV);
wpi_mem_write(sc, WPI_MEM_PCIDEV, tmp | 0x800);
wpi_mem_unlock(sc);
(void) wpi_power_up(sc);
wpi_hw_config(sc);
tmp = WPI_READ(sc, WPI_GPIO_CTL);
if (!(tmp & WPI_GPIO_HW_RF_KILL)) {
cmn_err(CE_WARN, "wpi_init(): Radio transmitter is off\n");
goto fail1;
}
/* init Rx ring */
wpi_mem_lock(sc);
WPI_WRITE(sc, WPI_RX_BASE, sc->sc_rxq.dma_desc.cookie.dmac_address);
WPI_WRITE(sc, WPI_RX_RIDX_PTR,
(uint32_t)(sc->sc_dma_sh.cookie.dmac_address +
offsetof(wpi_shared_t, next)));
WPI_WRITE(sc, WPI_RX_WIDX, (WPI_RX_RING_COUNT - 1) & (~7));
WPI_WRITE(sc, WPI_RX_CONFIG, 0xa9601010);
wpi_mem_unlock(sc);
/* init Tx rings */
wpi_mem_lock(sc);
wpi_mem_write(sc, WPI_MEM_MODE, 2); /* bypass mode */
wpi_mem_write(sc, WPI_MEM_RA, 1); /* enable RA0 */
wpi_mem_write(sc, WPI_MEM_TXCFG, 0x3f); /* enable all 6 Tx rings */
wpi_mem_write(sc, WPI_MEM_BYPASS1, 0x10000);
wpi_mem_write(sc, WPI_MEM_BYPASS2, 0x30002);
wpi_mem_write(sc, WPI_MEM_MAGIC4, 4);
wpi_mem_write(sc, WPI_MEM_MAGIC5, 5);
WPI_WRITE(sc, WPI_TX_BASE_PTR, sc->sc_dma_sh.cookie.dmac_address);
WPI_WRITE(sc, WPI_MSG_CONFIG, 0xffff05a5);
for (qid = 0; qid < 6; qid++) {
WPI_WRITE(sc, WPI_TX_CTL(qid), 0);
WPI_WRITE(sc, WPI_TX_BASE(qid), 0);
WPI_WRITE(sc, WPI_TX_CONFIG(qid), 0x80200008);
}
wpi_mem_unlock(sc);
/* clear "radio off" and "disable command" bits (reversed logic) */
WPI_WRITE(sc, WPI_UCODE_CLR, WPI_RADIO_OFF);
WPI_WRITE(sc, WPI_UCODE_CLR, WPI_DISABLE_CMD);
/* clear any pending interrupts */
WPI_WRITE(sc, WPI_INTR, 0xffffffff);
/* enable interrupts */
WPI_WRITE(sc, WPI_MASK, WPI_INTR_MASK);
/* load firmware boot code into NIC */
err = wpi_load_microcode(sc);
if (err != WPI_SUCCESS) {
cmn_err(CE_WARN, "wpi_init(): failed to load microcode\n");
goto fail1;
}
/* load firmware .text segment into NIC */
err = wpi_load_firmware(sc, WPI_FW_TEXT);
if (err != WPI_SUCCESS) {
cmn_err(CE_WARN, "wpi_init(): "
"failed to load firmware(text)\n");
goto fail1;
}
/* load firmware .data segment into NIC */
err = wpi_load_firmware(sc, WPI_FW_DATA);
if (err != WPI_SUCCESS) {
cmn_err(CE_WARN, "wpi_init(): "
"failed to load firmware(data)\n");
goto fail1;
}
/* now press "execute" ;-) */
tmp = WPI_READ(sc, WPI_RESET);
tmp &= ~(WPI_MASTER_DISABLED | WPI_STOP_MASTER | WPI_NEVO_RESET);
WPI_WRITE(sc, WPI_RESET, tmp);
/* ..and wait at most one second for adapter to initialize */
clk = ddi_get_lbolt() + drv_usectohz(2000000);
while (!(sc->sc_flags & WPI_F_FW_INIT)) {
if (cv_timedwait(&sc->sc_fw_cv, &sc->sc_glock, clk) < 0)
break;
}
if (!(sc->sc_flags & WPI_F_FW_INIT)) {
cmn_err(CE_WARN,
"wpi_init(): timeout waiting for firmware init\n");
goto fail1;
}
/* wait for thermal sensors to calibrate */
for (ntries = 0; ntries < 1000; ntries++) {
if (WPI_READ(sc, WPI_TEMPERATURE) != 0)
break;
DELAY(10);
}
if (ntries == 1000) {
WPI_DBG((WPI_DEBUG_HW,
"wpi_init(): timeout waiting for thermal sensors "
"calibration\n"));
}
WPI_DBG((WPI_DEBUG_HW, "temperature %d\n",
(int)WPI_READ(sc, WPI_TEMPERATURE)));
err = wpi_config(sc);
if (err) {
cmn_err(CE_WARN, "wpi_init(): failed to configure device\n");
goto fail1;
}
mutex_exit(&sc->sc_glock);
return (WPI_SUCCESS);
fail1:
err = WPI_FAIL;
mutex_exit(&sc->sc_glock);
return (err);
}
static int
wpi_fast_recover(wpi_sc_t *sc)
{
ieee80211com_t *ic = &sc->sc_ic;
int err;
mutex_enter(&sc->sc_glock);
/* restore runtime configuration */
bcopy(&sc->sc_config_save, &sc->sc_config,
sizeof (sc->sc_config));
sc->sc_config.state = 0;
sc->sc_config.filter &= ~LE_32(WPI_FILTER_BSS);
if ((err = wpi_auth(sc)) != 0) {
cmn_err(CE_WARN, "wpi_fast_recover(): "
"failed to setup authentication\n");
mutex_exit(&sc->sc_glock);
return (err);
}
sc->sc_config.state = LE_16(WPI_CONFIG_ASSOCIATED);
sc->sc_config.flags &= ~LE_32(WPI_CONFIG_SHPREAMBLE |
WPI_CONFIG_SHSLOT);
if (ic->ic_flags & IEEE80211_F_SHSLOT)
sc->sc_config.flags |= LE_32(WPI_CONFIG_SHSLOT);
if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
sc->sc_config.flags |= LE_32(WPI_CONFIG_SHPREAMBLE);
sc->sc_config.filter |= LE_32(WPI_FILTER_BSS);
if (ic->ic_opmode != IEEE80211_M_STA)
sc->sc_config.filter |= LE_32(WPI_FILTER_BEACON);
WPI_DBG((WPI_DEBUG_80211, "config chan %d flags %x\n",
sc->sc_config.chan, sc->sc_config.flags));
err = wpi_cmd(sc, WPI_CMD_CONFIGURE, &sc->sc_config,
sizeof (wpi_config_t), 1);
if (err != WPI_SUCCESS) {
cmn_err(CE_WARN, "failed to setup association\n");
mutex_exit(&sc->sc_glock);
return (err);
}
/* link LED on */
wpi_set_led(sc, WPI_LED_LINK, 0, 1);
mutex_exit(&sc->sc_glock);
/* update keys */
if (ic->ic_flags & IEEE80211_F_PRIVACY) {
for (int i = 0; i < IEEE80211_KEY_MAX; i++) {
if (ic->ic_nw_keys[i].wk_keyix == IEEE80211_KEYIX_NONE)
continue;
err = wpi_key_set(ic, &ic->ic_nw_keys[i],
ic->ic_bss->in_macaddr);
/* failure */
if (err == 0) {
cmn_err(CE_WARN, "wpi_fast_recover(): "
"failed to setup hardware keys\n");
return (WPI_FAIL);
}
}
}
sc->sc_flags &= ~WPI_F_HW_ERR_RECOVER;
/* start queue */
WPI_DBG((WPI_DEBUG_FW, "wpi_fast_recover(): resume xmit\n"));
mac_tx_update(ic->ic_mach);
return (WPI_SUCCESS);
}
/*
* quiesce(9E) entry point.
* This function is called when the system is single-threaded at high
* PIL with preemption disabled. Therefore, this function must not be
* blocked.
* This function returns DDI_SUCCESS on success, or DDI_FAILURE on failure.
* DDI_FAILURE indicates an error condition and should almost never happen.
*/
static int
wpi_quiesce(dev_info_t *dip)
{
wpi_sc_t *sc;
sc = ddi_get_soft_state(wpi_soft_state_p, ddi_get_instance(dip));
if (sc == NULL)
return (DDI_FAILURE);
#ifdef DEBUG
/* by pass any messages, if it's quiesce */
wpi_dbg_flags = 0;
#endif
/*
* No more blocking is allowed while we are in the
* quiesce(9E) entry point.
*/
sc->sc_flags |= WPI_F_QUIESCED;
/*
* Disable and mask all interrupts.
*/
wpi_stop(sc);
return (DDI_SUCCESS);
}
static void
wpi_stop(wpi_sc_t *sc)
{
uint32_t tmp;
int ac;
/* no mutex operation, if it's quiesced */
if (!(sc->sc_flags & WPI_F_QUIESCED))
mutex_enter(&sc->sc_glock);
/* disable interrupts */
WPI_WRITE(sc, WPI_MASK, 0);
WPI_WRITE(sc, WPI_INTR, WPI_INTR_MASK);
WPI_WRITE(sc, WPI_INTR_STATUS, 0xff);
WPI_WRITE(sc, WPI_INTR_STATUS, 0x00070000);
wpi_mem_lock(sc);
wpi_mem_write(sc, WPI_MEM_MODE, 0);
wpi_mem_unlock(sc);
/* reset all Tx rings */
for (ac = 0; ac < 4; ac++)
wpi_reset_tx_ring(sc, &sc->sc_txq[ac]);
wpi_reset_tx_ring(sc, &sc->sc_cmdq);
wpi_reset_tx_ring(sc, &sc->sc_svcq);
/* reset Rx ring */
wpi_reset_rx_ring(sc);
wpi_mem_lock(sc);
wpi_mem_write(sc, WPI_MEM_CLOCK2, 0x200);
wpi_mem_unlock(sc);
DELAY(5);
wpi_stop_master(sc);
sc->sc_tx_timer = 0;
sc->sc_flags &= ~WPI_F_SCANNING;
sc->sc_scan_pending = 0;
sc->sc_scan_next = 0;
tmp = WPI_READ(sc, WPI_RESET);
WPI_WRITE(sc, WPI_RESET, tmp | WPI_SW_RESET);
/* no mutex operation, if it's quiesced */
if (!(sc->sc_flags & WPI_F_QUIESCED))
mutex_exit(&sc->sc_glock);
}
/*
* Naive implementation of the Adaptive Multi Rate Retry algorithm:
* "IEEE 802.11 Rate Adaptation: A Practical Approach"
* Mathieu Lacage, Hossein Manshaei, Thierry Turletti
* INRIA Sophia - Projet Planete
* http://www-sop.inria.fr/rapports/sophia/RR-5208.html
*/
#define is_success(amrr) \
((amrr)->retrycnt < (amrr)->txcnt / 10)
#define is_failure(amrr) \
((amrr)->retrycnt > (amrr)->txcnt / 3)
#define is_enough(amrr) \
((amrr)->txcnt > 100)
#define is_min_rate(in) \
((in)->in_txrate == 0)
#define is_max_rate(in) \
((in)->in_txrate == (in)->in_rates.ir_nrates - 1)
#define increase_rate(in) \
((in)->in_txrate++)
#define decrease_rate(in) \
((in)->in_txrate--)
#define reset_cnt(amrr) \
{ (amrr)->txcnt = (amrr)->retrycnt = 0; }
#define WPI_AMRR_MIN_SUCCESS_THRESHOLD 1
#define WPI_AMRR_MAX_SUCCESS_THRESHOLD 15
static void
wpi_amrr_init(wpi_amrr_t *amrr)
{
amrr->success = 0;
amrr->recovery = 0;
amrr->txcnt = amrr->retrycnt = 0;
amrr->success_threshold = WPI_AMRR_MIN_SUCCESS_THRESHOLD;
}
static void
wpi_amrr_timeout(wpi_sc_t *sc)
{
ieee80211com_t *ic = &sc->sc_ic;
WPI_DBG((WPI_DEBUG_RATECTL, "wpi_amrr_timeout() enter\n"));
if (ic->ic_opmode == IEEE80211_M_STA)
wpi_amrr_ratectl(NULL, ic->ic_bss);
else
ieee80211_iterate_nodes(&ic->ic_sta, wpi_amrr_ratectl, NULL);
sc->sc_clk = ddi_get_lbolt();
}
/* ARGSUSED */
static void
wpi_amrr_ratectl(void *arg, ieee80211_node_t *in)
{
wpi_amrr_t *amrr = (wpi_amrr_t *)in;
int need_change = 0;
if (is_success(amrr) && is_enough(amrr)) {
amrr->success++;
if (amrr->success >= amrr->success_threshold &&
!is_max_rate(in)) {
amrr->recovery = 1;
amrr->success = 0;
increase_rate(in);
WPI_DBG((WPI_DEBUG_RATECTL,
"AMRR increasing rate %d (txcnt=%d retrycnt=%d)\n",
in->in_txrate, amrr->txcnt, amrr->retrycnt));
need_change = 1;
} else {
amrr->recovery = 0;
}
} else if (is_failure(amrr)) {
amrr->success = 0;
if (!is_min_rate(in)) {
if (amrr->recovery) {
amrr->success_threshold++;
if (amrr->success_threshold >
WPI_AMRR_MAX_SUCCESS_THRESHOLD)
amrr->success_threshold =
WPI_AMRR_MAX_SUCCESS_THRESHOLD;
} else {
amrr->success_threshold =
WPI_AMRR_MIN_SUCCESS_THRESHOLD;
}
decrease_rate(in);
WPI_DBG((WPI_DEBUG_RATECTL,
"AMRR decreasing rate %d (txcnt=%d retrycnt=%d)\n",
in->in_txrate, amrr->txcnt, amrr->retrycnt));
need_change = 1;
}
amrr->recovery = 0; /* paper is incorrect */
}
if (is_enough(amrr) || need_change)
reset_cnt(amrr);
}