static int adm8211_write_bbp(struct ieee80211_hw *dev, u8 addr, u8 data)
{
struct adm8211_priv *priv = dev->priv;
unsigned int timeout;
u32 reg;
timeout = 10;
while (timeout > 0) {
reg = ADM8211_CSR_READ(BBPCTL);
if (!(reg & (ADM8211_BBPCTL_WR | ADM8211_BBPCTL_RD)))
break;
timeout--;
msleep(2);
}
if (timeout == 0) {
wiphy_debug(dev->wiphy,
"adm8211_write_bbp(%d,%d) failed prewrite (reg=0x%08x)\n",
addr, data, reg);
return -ETIMEDOUT;
}
switch (priv->bbp_type) {
case ADM8211_TYPE_INTERSIL:
reg = ADM8211_BBPCTL_MMISEL; /* three wire interface */
break;
case ADM8211_TYPE_RFMD:
reg = (0x20 << 24) | ADM8211_BBPCTL_TXCE | ADM8211_BBPCTL_CCAP |
(0x01 << 18);
break;
case ADM8211_TYPE_ADMTEK:
reg = (0x20 << 24) | ADM8211_BBPCTL_TXCE | ADM8211_BBPCTL_CCAP |
(0x05 << 18);
break;
}
reg |= ADM8211_BBPCTL_WR | (addr << 8) | data;
ADM8211_CSR_WRITE(BBPCTL, reg);
timeout = 10;
while (timeout > 0) {
reg = ADM8211_CSR_READ(BBPCTL);
if (!(reg & ADM8211_BBPCTL_WR))
break;
timeout--;
msleep(2);
}
if (timeout == 0) {
ADM8211_CSR_WRITE(BBPCTL, ADM8211_CSR_READ(BBPCTL) &
~ADM8211_BBPCTL_WR);
wiphy_debug(dev->wiphy,
"adm8211_write_bbp(%d,%d) failed postwrite (reg=0x%08x)\n",
addr, data, reg);
return -ETIMEDOUT;
}
return 0;
}
static int mwl_mac80211_config(struct ieee80211_hw *hw,
u32 changed)
{
struct ieee80211_conf *conf = &hw->conf;
int rc;
wiphy_debug(hw->wiphy, "change: 0x%x\n", changed);
if (conf->flags & IEEE80211_CONF_IDLE)
rc = mwl_fwcmd_radio_disable(hw);
else
rc = mwl_fwcmd_radio_enable(hw);
if (rc)
goto out;
if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
int rate = 0;
if (conf->chandef.chan->band == IEEE80211_BAND_2GHZ) {
mwl_fwcmd_set_apmode(hw, AP_MODE_2_4GHZ_11AC_MIXED);
mwl_fwcmd_set_linkadapt_cs_mode(hw,
LINK_CS_STATE_CONSERV);
rate = mwl_rates_24[0].hw_value;
} else if (conf->chandef.chan->band == IEEE80211_BAND_5GHZ) {
mwl_fwcmd_set_apmode(hw, AP_MODE_11AC);
mwl_fwcmd_set_linkadapt_cs_mode(hw,
LINK_CS_STATE_AUTO);
rate = mwl_rates_50[0].hw_value;
if (conf->radar_enabled)
mwl_fwcmd_set_radar_detect(hw, MONITOR_START);
else
mwl_fwcmd_set_radar_detect(hw,
STOP_DETECT_RADAR);
}
rc = mwl_fwcmd_set_rf_channel(hw, conf);
if (rc)
goto out;
rc = mwl_fwcmd_use_fixed_rate(hw, rate, rate);
if (rc)
goto out;
rc = mwl_fwcmd_max_tx_power(hw, conf, 0);
if (rc)
goto out;
rc = mwl_fwcmd_tx_power(hw, conf, 0);
if (rc)
goto out;
rc = mwl_fwcmd_set_cdd(hw);
}
out:
return rc;
}
/*
* CFG802.11 operation handler for setting bit rates.
*
* Function selects legacy bang B/G/BG from corresponding bitrates selection.
* Currently only 2.4GHz band is supported.
*/
static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
struct net_device *dev,
const u8 *peer,
const struct cfg80211_bitrate_mask *mask)
{
struct mwifiex_ds_band_cfg band_cfg;
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
int index = 0, mode = 0, i;
/* Currently only 2.4GHz is supported */
for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
/*
* Rates below 6 Mbps in the table are CCK rates; 802.11b
* and from 6 they are OFDM; 802.11G
*/
if (mwifiex_rates[i].bitrate == 60) {
index = 1 << i;
break;
}
}
if (mask->control[IEEE80211_BAND_2GHZ].legacy < index) {
mode = BAND_B;
} else {
mode = BAND_G;
if (mask->control[IEEE80211_BAND_2GHZ].legacy % index)
mode |= BAND_B;
}
memset(&band_cfg, 0, sizeof(band_cfg));
band_cfg.config_bands = mode;
if (priv->bss_mode == NL80211_IFTYPE_ADHOC)
band_cfg.adhoc_start_band = mode;
band_cfg.sec_chan_offset = NO_SEC_CHANNEL;
if (mwifiex_set_radio_band_cfg(priv, &band_cfg))
return -EFAULT;
wiphy_debug(wiphy, "info: device configured in 802.11%s%s mode\n",
(mode & BAND_B) ? "b" : "",
(mode & BAND_G) ? "g" : "");
return 0;
}
/*
* CFG802.11 operation handler for setting bit rates.
*
* Function selects legacy bang B/G/BG from corresponding bitrates selection.
* Currently only 2.4GHz band is supported.
*/
static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
struct net_device *dev,
const u8 *peer,
const struct cfg80211_bitrate_mask *mask)
{
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
int index = 0, mode = 0, i;
struct mwifiex_adapter *adapter = priv->adapter;
/* Currently only 2.4GHz is supported */
for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
/*
* Rates below 6 Mbps in the table are CCK rates; 802.11b
* and from 6 they are OFDM; 802.11G
*/
if (mwifiex_rates[i].bitrate == 60) {
index = 1 << i;
break;
}
}
if (mask->control[IEEE80211_BAND_2GHZ].legacy < index) {
mode = BAND_B;
} else {
mode = BAND_G;
if (mask->control[IEEE80211_BAND_2GHZ].legacy % index)
mode |= BAND_B;
}
if (!((mode | adapter->fw_bands) & ~adapter->fw_bands)) {
adapter->config_bands = mode;
if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
adapter->adhoc_start_band = mode;
adapter->adhoc_11n_enabled = false;
}
}
adapter->sec_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_NONE;
adapter->channel_type = NL80211_CHAN_NO_HT;
wiphy_debug(wiphy, "info: device configured in 802.11%s%s mode\n",
(mode & BAND_B) ? "b" : "", (mode & BAND_G) ? "g" : "");
return 0;
}
int mwl_fwdl_download_firmware(struct ieee80211_hw *hw)
{
struct mwl_priv *priv = hw->priv;
const struct firmware *fw;
u32 curr_iteration = 0;
u32 size_fw_downloaded = 0;
u32 int_code = 0;
u32 len = 0;
u32 fwreadysignature = HOSTCMD_SOFTAP_FWRDY_SIGNATURE;
fw = priv->fw_ucode;
mwl_fwcmd_reset(hw);
/* FW before jumping to boot rom, it will enable PCIe transaction retry,
* wait for boot code to stop it.
*/
usleep_range(FW_CHECK_MSECS * 1000, FW_CHECK_MSECS * 2000);
writel(MACREG_A2HRIC_BIT_MASK,
priv->iobase1 + MACREG_REG_A2H_INTERRUPT_CLEAR_SEL);
writel(0x00, priv->iobase1 + MACREG_REG_A2H_INTERRUPT_CAUSE);
writel(0x00, priv->iobase1 + MACREG_REG_A2H_INTERRUPT_MASK);
writel(MACREG_A2HRIC_BIT_MASK,
priv->iobase1 + MACREG_REG_A2H_INTERRUPT_STATUS_MASK);
/* this routine interacts with SC2 bootrom to download firmware binary
* to the device. After DMA'd to SC2, the firmware could be deflated to
* reside on its respective blocks such as ITCM, DTCM, SQRAM,
* (or even DDR, AFTER DDR is init'd before fw download
*/
wiphy_debug(hw->wiphy, "fw download start\n");
/* Disable PFU before FWDL */
writel(0x100, priv->iobase1 + 0xE0E4);
/* make sure SCRATCH2 C40 is clear, in case we are too quick */
while (readl(priv->iobase1 + 0xc40) == 0)
cond_resched();
while (size_fw_downloaded < fw->size) {
len = readl(priv->iobase1 + 0xc40);
if (!len)
break;
/* this copies the next chunk of fw binary to be delivered */
memcpy((char *)&priv->pcmd_buf[0],
(fw->data + size_fw_downloaded), len);
/* this function writes pdata to c10, then write 2 to c18 */
mwl_fwdl_trig_pcicmd_bootcode(priv);
/* this is arbitrary per your platform; we use 0xffff */
curr_iteration = FW_MAX_NUM_CHECKS;
/* NOTE: the following back to back checks on C1C is time
* sensitive, hence may need to be tweaked dependent on host
* processor. Time for SC2 to go from the write of event 2 to
* C1C == 2 is ~1300 nSec. Hence the checkings on host has to
* consider how efficient your code can be to meet this timing,
* or you can alternatively tweak this routines to fit your
* platform
*/
do {
int_code = readl(priv->iobase1 + 0xc1c);
if (int_code != 0)
break;
cond_resched();
curr_iteration--;
} while (curr_iteration);
do {
int_code = readl(priv->iobase1 + 0xc1c);
if ((int_code & MACREG_H2ARIC_BIT_DOOR_BELL) !=
MACREG_H2ARIC_BIT_DOOR_BELL)
break;
cond_resched();
curr_iteration--;
} while (curr_iteration);
if (curr_iteration == 0) {
/* This limited loop check allows you to exit gracefully
* without locking up your entire system just because fw
* download failed
*/
wiphy_err(hw->wiphy,
"Exhausted curr_iteration for fw download\n");
goto err_download;
}
size_fw_downloaded += len;
}
wiphy_debug(hw->wiphy,
"FwSize = %d downloaded Size = %d curr_iteration %d\n",
(int)fw->size, size_fw_downloaded, curr_iteration);
/* Now firware is downloaded successfully, so this part is to check
* whether fw can properly execute to an extent that write back
* signature to indicate its readiness to the host. NOTE: if your
* downloaded fw crashes, this signature checking will fail. This
* part is similar as SC1
*/
*((u32 *)&priv->pcmd_buf[1]) = 0;
mwl_fwdl_trig_pcicmd(priv);
curr_iteration = FW_MAX_NUM_CHECKS;
do {
curr_iteration--;
writel(HOSTCMD_SOFTAP_MODE,
priv->iobase1 + MACREG_REG_GEN_PTR);
usleep_range(FW_CHECK_MSECS * 1000, FW_CHECK_MSECS * 2000);
int_code = readl(priv->iobase1 + MACREG_REG_INT_CODE);
if (!(curr_iteration % 0xff) && (int_code != 0))
wiphy_err(hw->wiphy, "%x;", int_code);
} while ((curr_iteration) &&
(int_code != fwreadysignature));
if (curr_iteration == 0) {
wiphy_err(hw->wiphy,
"Exhausted curr_iteration for fw signature\n");
goto err_download;
}
wiphy_debug(hw->wiphy, "fw download complete\n");
writel(0x00, priv->iobase1 + MACREG_REG_INT_CODE);
return 0;
err_download:
mwl_fwcmd_reset(hw);
return -EIO;
}
int ieee80211_register_hw(struct ieee80211_hw *hw)
{
struct ieee80211_local *local = hw_to_local(hw);
int result, i;
enum ieee80211_band band;
int channels, max_bitrates;
bool supp_ht;
static const u32 cipher_suites[] = {
/* keep WEP first, it may be removed below */
WLAN_CIPHER_SUITE_WEP40,
WLAN_CIPHER_SUITE_WEP104,
WLAN_CIPHER_SUITE_TKIP,
WLAN_CIPHER_SUITE_CCMP,
/* keep last -- depends on hw flags! */
WLAN_CIPHER_SUITE_AES_CMAC
};
if ((hw->wiphy->wowlan.flags || hw->wiphy->wowlan.n_patterns)
#ifdef CONFIG_PM
&& (!local->ops->suspend || !local->ops->resume)
#endif
)
return -EINVAL;
if (hw->max_report_rates == 0)
hw->max_report_rates = hw->max_rates;
/*
* generic code guarantees at least one band,
* set this very early because much code assumes
* that hw.conf.channel is assigned
*/
channels = 0;
max_bitrates = 0;
supp_ht = false;
for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
struct ieee80211_supported_band *sband;
sband = local->hw.wiphy->bands[band];
if (!sband)
continue;
if (!local->oper_channel) {
/* init channel we're on */
local->hw.conf.channel =
local->oper_channel = &sband->channels[0];
local->hw.conf.channel_type = NL80211_CHAN_NO_HT;
}
channels += sband->n_channels;
if (max_bitrates < sband->n_bitrates)
max_bitrates = sband->n_bitrates;
supp_ht = supp_ht || sband->ht_cap.ht_supported;
}
local->int_scan_req = kzalloc(sizeof(*local->int_scan_req) +
sizeof(void *) * channels, GFP_KERNEL);
if (!local->int_scan_req)
return -ENOMEM;
/* if low-level driver supports AP, we also support VLAN */
if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_AP)) {
hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_AP_VLAN);
hw->wiphy->software_iftypes |= BIT(NL80211_IFTYPE_AP_VLAN);
}
/* mac80211 always supports monitor */
hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR);
hw->wiphy->software_iftypes |= BIT(NL80211_IFTYPE_MONITOR);
/*
* mac80211 doesn't support more than 1 channel, and also not more
* than one IBSS interface
*/
for (i = 0; i < hw->wiphy->n_iface_combinations; i++) {
const struct ieee80211_iface_combination *c;
int j;
c = &hw->wiphy->iface_combinations[i];
if (c->num_different_channels > 1)
return -EINVAL;
for (j = 0; j < c->n_limits; j++)
if ((c->limits[j].types & BIT(NL80211_IFTYPE_ADHOC)) &&
c->limits[j].max > 1)
return -EINVAL;
}
#ifndef CONFIG_MAC80211_MESH
/* mesh depends on Kconfig, but drivers should set it if they want */
local->hw.wiphy->interface_modes &= ~BIT(NL80211_IFTYPE_MESH_POINT);
#endif
/* if the underlying driver supports mesh, mac80211 will (at least)
* provide routing of mesh authentication frames to userspace */
if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_MESH_POINT))
local->hw.wiphy->flags |= WIPHY_FLAG_MESH_AUTH;
/* mac80211 supports control port protocol changing */
local->hw.wiphy->flags |= WIPHY_FLAG_CONTROL_PORT_PROTOCOL;
if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM)
local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
else if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)
local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
WARN((local->hw.flags & IEEE80211_HW_SUPPORTS_UAPSD)
&& (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK),
"U-APSD not supported with HW_PS_NULLFUNC_STACK\n");
/*
* Calculate scan IE length -- we need this to alloc
* memory and to subtract from the driver limit. It
* includes the DS Params, (extended) supported rates, and HT
* information -- SSID is the driver's responsibility.
*/
local->scan_ies_len = 4 + max_bitrates /* (ext) supp rates */ +
3 /* DS Params */;
if (supp_ht)
local->scan_ies_len += 2 + sizeof(struct ieee80211_ht_cap);
if (!local->ops->hw_scan) {
/* For hw_scan, driver needs to set these up. */
local->hw.wiphy->max_scan_ssids = 4;
local->hw.wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
}
/*
* If the driver supports any scan IEs, then assume the
* limit includes the IEs mac80211 will add, otherwise
* leave it at zero and let the driver sort it out; we
* still pass our IEs to the driver but userspace will
* not be allowed to in that case.
*/
if (local->hw.wiphy->max_scan_ie_len)
local->hw.wiphy->max_scan_ie_len -= local->scan_ies_len;
/* Set up cipher suites unless driver already did */
if (!local->hw.wiphy->cipher_suites) {
local->hw.wiphy->cipher_suites = cipher_suites;
local->hw.wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
if (!(local->hw.flags & IEEE80211_HW_MFP_CAPABLE))
local->hw.wiphy->n_cipher_suites--;
}
if (IS_ERR(local->wep_tx_tfm) || IS_ERR(local->wep_rx_tfm)) {
if (local->hw.wiphy->cipher_suites == cipher_suites) {
local->hw.wiphy->cipher_suites += 2;
local->hw.wiphy->n_cipher_suites -= 2;
} else {
u32 *suites;
int r, w = 0;
/* Filter out WEP */
suites = kmemdup(
local->hw.wiphy->cipher_suites,
sizeof(u32) * local->hw.wiphy->n_cipher_suites,
GFP_KERNEL);
if (!suites)
return -ENOMEM;
for (r = 0; r < local->hw.wiphy->n_cipher_suites; r++) {
u32 suite = local->hw.wiphy->cipher_suites[r];
if (suite == WLAN_CIPHER_SUITE_WEP40 ||
suite == WLAN_CIPHER_SUITE_WEP104)
continue;
suites[w++] = suite;
}
local->hw.wiphy->cipher_suites = suites;
local->hw.wiphy->n_cipher_suites = w;
local->wiphy_ciphers_allocated = true;
}
}
if (!local->ops->remain_on_channel)
local->hw.wiphy->max_remain_on_channel_duration = 5000;
if (local->ops->sched_scan_start)
local->hw.wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
result = wiphy_register(local->hw.wiphy);
if (result < 0)
goto fail_wiphy_register;
/*
* We use the number of queues for feature tests (QoS, HT) internally
* so restrict them appropriately.
*/
if (hw->queues > IEEE80211_MAX_QUEUES)
hw->queues = IEEE80211_MAX_QUEUES;
local->workqueue =
alloc_ordered_workqueue(wiphy_name(local->hw.wiphy), 0);
if (!local->workqueue) {
result = -ENOMEM;
goto fail_workqueue;
}
/*
* The hardware needs headroom for sending the frame,
* and we need some headroom for passing the frame to monitor
* interfaces, but never both at the same time.
*/
#ifndef __CHECKER__
BUILD_BUG_ON(IEEE80211_TX_STATUS_HEADROOM !=
sizeof(struct ieee80211_tx_status_rtap_hdr));
#endif
local->tx_headroom = max_t(unsigned int , local->hw.extra_tx_headroom,
sizeof(struct ieee80211_tx_status_rtap_hdr));
debugfs_hw_add(local);
/*
* if the driver doesn't specify a max listen interval we
* use 5 which should be a safe default
*/
if (local->hw.max_listen_interval == 0)
local->hw.max_listen_interval = 5;
local->hw.conf.listen_interval = local->hw.max_listen_interval;
local->dynamic_ps_forced_timeout = -1;
result = ieee80211_wep_init(local);
if (result < 0)
wiphy_debug(local->hw.wiphy, "Failed to initialize wep: %d\n",
result);
rtnl_lock();
result = ieee80211_init_rate_ctrl_alg(local,
hw->rate_control_algorithm);
if (result < 0) {
wiphy_debug(local->hw.wiphy,
"Failed to initialize rate control algorithm\n");
goto fail_rate;
}
/* add one default STA interface if supported */
if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_STATION)) {
result = ieee80211_if_add(local, "wlan%d", NULL,
NL80211_IFTYPE_STATION, NULL);
if (result)
wiphy_warn(local->hw.wiphy,
"Failed to add default virtual iface\n");
}
rtnl_unlock();
ieee80211_led_init(local);
local->network_latency_notifier.notifier_call =
ieee80211_max_network_latency;
result = pm_qos_add_notifier(PM_QOS_NETWORK_LATENCY,
&local->network_latency_notifier);
if (result) {
rtnl_lock();
goto fail_pm_qos;
}
#ifdef CONFIG_INET
local->ifa_notifier.notifier_call = ieee80211_ifa_changed;
result = register_inetaddr_notifier(&local->ifa_notifier);
if (result)
goto fail_ifa;
#endif
netif_napi_add(&local->napi_dev, &local->napi, ieee80211_napi_poll,
local->hw.napi_weight);
return 0;
#ifdef CONFIG_INET
fail_ifa:
pm_qos_remove_notifier(PM_QOS_NETWORK_LATENCY,
&local->network_latency_notifier);
rtnl_lock();
#endif
fail_pm_qos:
ieee80211_led_exit(local);
ieee80211_remove_interfaces(local);
fail_rate:
rtnl_unlock();
ieee80211_wep_free(local);
sta_info_stop(local);
destroy_workqueue(local->workqueue);
fail_workqueue:
wiphy_unregister(local->hw.wiphy);
fail_wiphy_register:
if (local->wiphy_ciphers_allocated)
kfree(local->hw.wiphy->cipher_suites);
kfree(local->int_scan_req);
return result;
}
static int adm8211_rf_set_channel(struct ieee80211_hw *dev, unsigned int chan)
{
static const u32 adm8211_rfmd2958_reg5[] =
{0x22BD, 0x22D2, 0x22E8, 0x22FE, 0x2314, 0x232A, 0x2340,
0x2355, 0x236B, 0x2381, 0x2397, 0x23AD, 0x23C2, 0x23F7};
static const u32 adm8211_rfmd2958_reg6[] =
{0x05D17, 0x3A2E8, 0x2E8BA, 0x22E8B, 0x1745D, 0x0BA2E, 0x00000,
0x345D1, 0x28BA2, 0x1D174, 0x11745, 0x05D17, 0x3A2E8, 0x11745};
struct adm8211_priv *priv = dev->priv;
u8 ant_power = priv->ant_power > 0x3F ?
priv->eeprom->antenna_power[chan - 1] : priv->ant_power;
u8 tx_power = priv->tx_power > 0x3F ?
priv->eeprom->tx_power[chan - 1] : priv->tx_power;
u8 lpf_cutoff = priv->lpf_cutoff == 0xFF ?
priv->eeprom->lpf_cutoff[chan - 1] : priv->lpf_cutoff;
u8 lnags_thresh = priv->lnags_threshold == 0xFF ?
priv->eeprom->lnags_threshold[chan - 1] : priv->lnags_threshold;
u32 reg;
ADM8211_IDLE();
/* Program synthesizer to new channel */
switch (priv->transceiver_type) {
case ADM8211_RFMD2958:
case ADM8211_RFMD2958_RF3000_CONTROL_POWER:
adm8211_rf_write_syn_rfmd2958(dev, 0x00, 0x04007);
adm8211_rf_write_syn_rfmd2958(dev, 0x02, 0x00033);
adm8211_rf_write_syn_rfmd2958(dev, 0x05,
adm8211_rfmd2958_reg5[chan - 1]);
adm8211_rf_write_syn_rfmd2958(dev, 0x06,
adm8211_rfmd2958_reg6[chan - 1]);
break;
case ADM8211_RFMD2948:
adm8211_rf_write_syn_rfmd2948(dev, SI4126_MAIN_CONF,
SI4126_MAIN_XINDIV2);
adm8211_rf_write_syn_rfmd2948(dev, SI4126_POWERDOWN,
SI4126_POWERDOWN_PDIB |
SI4126_POWERDOWN_PDRB);
adm8211_rf_write_syn_rfmd2948(dev, SI4126_PHASE_DET_GAIN, 0);
adm8211_rf_write_syn_rfmd2948(dev, SI4126_RF2_N_DIV,
(chan == 14 ?
2110 : (2033 + (chan * 5))));
adm8211_rf_write_syn_rfmd2948(dev, SI4126_IF_N_DIV, 1496);
adm8211_rf_write_syn_rfmd2948(dev, SI4126_RF2_R_DIV, 44);
adm8211_rf_write_syn_rfmd2948(dev, SI4126_IF_R_DIV, 44);
break;
case ADM8211_MAX2820:
adm8211_rf_write_syn_max2820(dev, 0x3,
(chan == 14 ? 0x054 : (0x7 + (chan * 5))));
break;
case ADM8211_AL2210L:
adm8211_rf_write_syn_al2210l(dev, 0x0,
(chan == 14 ? 0x229B4 : (0x22967 + (chan * 5))));
break;
default:
wiphy_debug(dev->wiphy, "unsupported transceiver type %d\n",
priv->transceiver_type);
break;
}
/* write BBP regs */
if (priv->bbp_type == ADM8211_TYPE_RFMD) {
/* SMC 2635W specific? adm8211b doesn't use the 2948 though.. */
/* TODO: remove if SMC 2635W doesn't need this */
if (priv->transceiver_type == ADM8211_RFMD2948) {
reg = ADM8211_CSR_READ(GPIO);
reg &= 0xfffc0000;
reg |= ADM8211_CSR_GPIO_EN0;
if (chan != 14)
reg |= ADM8211_CSR_GPIO_O0;
ADM8211_CSR_WRITE(GPIO, reg);
}
if (priv->transceiver_type == ADM8211_RFMD2958) {
/* set PCNT2 */
adm8211_rf_write_syn_rfmd2958(dev, 0x0B, 0x07100);
/* set PCNT1 P_DESIRED/MID_BIAS */
reg = le16_to_cpu(priv->eeprom->cr49);
reg >>= 13;
reg <<= 15;
reg |= ant_power << 9;
adm8211_rf_write_syn_rfmd2958(dev, 0x0A, reg);
/* set TXRX TX_GAIN */
adm8211_rf_write_syn_rfmd2958(dev, 0x09, 0x00050 |
(priv->pdev->revision < ADM8211_REV_CA ? tx_power : 0));
} else {
static void adm8211_interrupt_rci(struct ieee80211_hw *dev)
{
struct adm8211_priv *priv = dev->priv;
unsigned int entry = priv->cur_rx % priv->rx_ring_size;
u32 status;
unsigned int pktlen;
struct sk_buff *skb, *newskb;
unsigned int limit = priv->rx_ring_size;
u8 rssi, rate;
while (!(priv->rx_ring[entry].status & cpu_to_le32(RDES0_STATUS_OWN))) {
if (!limit--)
break;
status = le32_to_cpu(priv->rx_ring[entry].status);
rate = (status & RDES0_STATUS_RXDR) >> 12;
rssi = le32_to_cpu(priv->rx_ring[entry].length) &
RDES1_STATUS_RSSI;
pktlen = status & RDES0_STATUS_FL;
if (pktlen > RX_PKT_SIZE) {
if (net_ratelimit())
wiphy_debug(dev->wiphy, "frame too long (%d)\n",
pktlen);
pktlen = RX_PKT_SIZE;
}
if (!priv->soft_rx_crc && status & RDES0_STATUS_ES) {
skb = NULL; /* old buffer will be reused */
/* TODO: update RX error stats */
/* TODO: check RDES0_STATUS_CRC*E */
} else if (pktlen < RX_COPY_BREAK) {
skb = dev_alloc_skb(pktlen);
if (skb) {
pci_dma_sync_single_for_cpu(
priv->pdev,
priv->rx_buffers[entry].mapping,
pktlen, PCI_DMA_FROMDEVICE);
memcpy(skb_put(skb, pktlen),
skb_tail_pointer(priv->rx_buffers[entry].skb),
pktlen);
pci_dma_sync_single_for_device(
priv->pdev,
priv->rx_buffers[entry].mapping,
RX_PKT_SIZE, PCI_DMA_FROMDEVICE);
}
} else {
newskb = dev_alloc_skb(RX_PKT_SIZE);
if (newskb) {
skb = priv->rx_buffers[entry].skb;
skb_put(skb, pktlen);
pci_unmap_single(
priv->pdev,
priv->rx_buffers[entry].mapping,
RX_PKT_SIZE, PCI_DMA_FROMDEVICE);
priv->rx_buffers[entry].skb = newskb;
priv->rx_buffers[entry].mapping =
pci_map_single(priv->pdev,
skb_tail_pointer(newskb),
RX_PKT_SIZE,
PCI_DMA_FROMDEVICE);
} else {
skb = NULL;
/* TODO: update rx dropped stats */
}
priv->rx_ring[entry].buffer1 =
cpu_to_le32(priv->rx_buffers[entry].mapping);
}
priv->rx_ring[entry].status = cpu_to_le32(RDES0_STATUS_OWN |
RDES0_STATUS_SQL);
priv->rx_ring[entry].length =
cpu_to_le32(RX_PKT_SIZE |
(entry == priv->rx_ring_size - 1 ?
RDES1_CONTROL_RER : 0));
if (skb) {
struct ieee80211_rx_status rx_status = {0};
if (priv->pdev->revision < ADM8211_REV_CA)
rx_status.signal = rssi;
else
rx_status.signal = 100 - rssi;
rx_status.rate_idx = rate;
rx_status.freq = adm8211_channels[priv->channel - 1].center_freq;
rx_status.band = IEEE80211_BAND_2GHZ;
memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
ieee80211_rx_irqsafe(dev, skb);
}
entry = (++priv->cur_rx) % priv->rx_ring_size;
}
/* TODO: check LPC and update stats? */
}
