diff options
| author | Greg Kroah-Hartman | 2008-12-05 05:01:41 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2009-01-06 22:52:31 +0100 |
| commit | c8d86be38785705aca77e33933298c320a1bf2a5 (patch) | |
| tree | b188305415619e6901fb2f259861110d5762041a /drivers/staging/rtl8187se/ieee80211/dot11d.c | |
| parent | Staging: add Driver for Altera PCI Express Chaining DMA reference design (diff) | |
| download | kernel-qcow2-linux-c8d86be38785705aca77e33933298c320a1bf2a5.tar.gz kernel-qcow2-linux-c8d86be38785705aca77e33933298c320a1bf2a5.tar.xz kernel-qcow2-linux-c8d86be38785705aca77e33933298c320a1bf2a5.zip | |
Staging: add rtl8187se driver
This is a driver for the Realtek 8187 "SE" wireless PCI devices in some
netbook computers (MSI Wind, and others). It includes its own copy of
the ieee80211 stack, but it is compiled into the driver to prevend
duplicate symbol issues.
This version comes from Ralink with no authorship, but it is based
on an old version of the rtl8180 driver from Andrea Merello. It was
hacked up a bit to get it to build properly within the kernel tree and
to properly handle the merged wireless stack within the driver.
Cc: Andrea Merello <andreamrl@tiscali.it>
Cc: linux-wireless <linux-wireless@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/staging/rtl8187se/ieee80211/dot11d.c')
| -rw-r--r-- | drivers/staging/rtl8187se/ieee80211/dot11d.c | 246 |
1 files changed, 246 insertions, 0 deletions
diff --git a/drivers/staging/rtl8187se/ieee80211/dot11d.c b/drivers/staging/rtl8187se/ieee80211/dot11d.c new file mode 100644 index 000000000000..5d8b752fc0fb --- /dev/null +++ b/drivers/staging/rtl8187se/ieee80211/dot11d.c @@ -0,0 +1,246 @@ +#ifdef ENABLE_DOT11D
+//-----------------------------------------------------------------------------
+// File:
+// Dot11d.c
+//
+// Description:
+// Implement 802.11d.
+//
+//-----------------------------------------------------------------------------
+
+#include "dot11d.h"
+
+void
+Dot11d_Init(struct ieee80211_device *ieee)
+{
+ PRT_DOT11D_INFO pDot11dInfo = GET_DOT11D_INFO(ieee);
+
+ pDot11dInfo->bEnabled = 0;
+
+ pDot11dInfo->State = DOT11D_STATE_NONE;
+ pDot11dInfo->CountryIeLen = 0;
+ memset(pDot11dInfo->channel_map, 0, MAX_CHANNEL_NUMBER+1);
+ memset(pDot11dInfo->MaxTxPwrDbmList, 0xFF, MAX_CHANNEL_NUMBER+1);
+ RESET_CIE_WATCHDOG(ieee);
+
+ printk("Dot11d_Init()\n");
+}
+
+//
+// Description:
+// Reset to the state as we are just entering a regulatory domain.
+//
+void
+Dot11d_Reset(struct ieee80211_device *ieee)
+{
+ u32 i;
+ PRT_DOT11D_INFO pDot11dInfo = GET_DOT11D_INFO(ieee);
+
+ // Clear old channel map
+ memset(pDot11dInfo->channel_map, 0, MAX_CHANNEL_NUMBER+1);
+ memset(pDot11dInfo->MaxTxPwrDbmList, 0xFF, MAX_CHANNEL_NUMBER+1);
+ // Set new channel map
+ for (i=1; i<=11; i++) {
+ (pDot11dInfo->channel_map)[i] = 1;
+ }
+ for (i=12; i<=14; i++) {
+ (pDot11dInfo->channel_map)[i] = 2;
+ }
+
+ pDot11dInfo->State = DOT11D_STATE_NONE;
+ pDot11dInfo->CountryIeLen = 0;
+ RESET_CIE_WATCHDOG(ieee);
+
+ //printk("Dot11d_Reset()\n");
+}
+
+//
+// Description:
+// Update country IE from Beacon or Probe Resopnse
+// and configure PHY for operation in the regulatory domain.
+//
+// TODO:
+// Configure Tx power.
+//
+// Assumption:
+// 1. IS_DOT11D_ENABLE() is TRUE.
+// 2. Input IE is an valid one.
+//
+void
+Dot11d_UpdateCountryIe(
+ struct ieee80211_device *dev,
+ u8 * pTaddr,
+ u16 CoutryIeLen,
+ u8 * pCoutryIe
+ )
+{
+ PRT_DOT11D_INFO pDot11dInfo = GET_DOT11D_INFO(dev);
+ u8 i, j, NumTriples, MaxChnlNum;
+ PCHNL_TXPOWER_TRIPLE pTriple;
+
+ if((CoutryIeLen - 3)%3 != 0)
+ {
+ printk("Dot11d_UpdateCountryIe(): Invalid country IE, skip it........1\n");
+ Dot11d_Reset(dev);
+ return;
+ }
+
+ memset(pDot11dInfo->channel_map, 0, MAX_CHANNEL_NUMBER+1);
+ memset(pDot11dInfo->MaxTxPwrDbmList, 0xFF, MAX_CHANNEL_NUMBER+1);
+ MaxChnlNum = 0;
+ NumTriples = (CoutryIeLen - 3) / 3; // skip 3-byte country string.
+ pTriple = (PCHNL_TXPOWER_TRIPLE)(pCoutryIe + 3);
+ for(i = 0; i < NumTriples; i++)
+ {
+ if(MaxChnlNum >= pTriple->FirstChnl)
+ { // It is not in a monotonically increasing order, so stop processing.
+ printk("Dot11d_UpdateCountryIe(): Invalid country IE, skip it........1\n");
+ Dot11d_Reset(dev);
+ return;
+ }
+ if(MAX_CHANNEL_NUMBER < (pTriple->FirstChnl + pTriple->NumChnls))
+ { // It is not a valid set of channel id, so stop processing.
+ printk("Dot11d_UpdateCountryIe(): Invalid country IE, skip it........2\n");
+ Dot11d_Reset(dev);
+ return;
+ }
+
+ for(j = 0 ; j < pTriple->NumChnls; j++)
+ {
+ pDot11dInfo->channel_map[pTriple->FirstChnl + j] = 1;
+ pDot11dInfo->MaxTxPwrDbmList[pTriple->FirstChnl + j] = pTriple->MaxTxPowerInDbm;
+ MaxChnlNum = pTriple->FirstChnl + j;
+ }
+
+ pTriple = (PCHNL_TXPOWER_TRIPLE)((u8*)pTriple + 3);
+ }
+#if 1
+ //printk("Dot11d_UpdateCountryIe(): Channel List:\n");
+ printk("Channel List:");
+ for(i=1; i<= MAX_CHANNEL_NUMBER; i++)
+ if(pDot11dInfo->channel_map[i] > 0)
+ printk(" %d", i);
+ printk("\n");
+#endif
+
+ UPDATE_CIE_SRC(dev, pTaddr);
+
+ pDot11dInfo->CountryIeLen = CoutryIeLen;
+ memcpy(pDot11dInfo->CountryIeBuf, pCoutryIe,CoutryIeLen);
+ pDot11dInfo->State = DOT11D_STATE_LEARNED;
+}
+
+void dump_chnl_map(u8 * channel_map)
+{
+ int i;
+ printk("Channel List:");
+ for(i=1; i<= MAX_CHANNEL_NUMBER; i++)
+ if(channel_map[i] > 0)
+ printk(" %d(%d)", i, channel_map[i]);
+ printk("\n");
+}
+
+u8
+DOT11D_GetMaxTxPwrInDbm(
+ struct ieee80211_device *dev,
+ u8 Channel
+ )
+{
+ PRT_DOT11D_INFO pDot11dInfo = GET_DOT11D_INFO(dev);
+ u8 MaxTxPwrInDbm = 255;
+
+ if(MAX_CHANNEL_NUMBER < Channel)
+ {
+ printk("DOT11D_GetMaxTxPwrInDbm(): Invalid Channel\n");
+ return MaxTxPwrInDbm;
+ }
+ if(pDot11dInfo->channel_map[Channel])
+ {
+ MaxTxPwrInDbm = pDot11dInfo->MaxTxPwrDbmList[Channel];
+ }
+
+ return MaxTxPwrInDbm;
+}
+
+
+void
+DOT11D_ScanComplete(
+ struct ieee80211_device * dev
+ )
+{
+ PRT_DOT11D_INFO pDot11dInfo = GET_DOT11D_INFO(dev);
+
+ switch(pDot11dInfo->State)
+ {
+ case DOT11D_STATE_LEARNED:
+ pDot11dInfo->State = DOT11D_STATE_DONE;
+ break;
+
+ case DOT11D_STATE_DONE:
+ if( GET_CIE_WATCHDOG(dev) == 0 )
+ { // Reset country IE if previous one is gone.
+ Dot11d_Reset(dev);
+ }
+ break;
+ case DOT11D_STATE_NONE:
+ break;
+ }
+}
+
+int IsLegalChannel(
+ struct ieee80211_device * dev,
+ u8 channel
+)
+{
+ PRT_DOT11D_INFO pDot11dInfo = GET_DOT11D_INFO(dev);
+
+ if(MAX_CHANNEL_NUMBER < channel)
+ {
+ printk("IsLegalChannel(): Invalid Channel\n");
+ return 0;
+ }
+ if(pDot11dInfo->channel_map[channel] > 0)
+ return 1;
+ return 0;
+}
+
+int ToLegalChannel(
+ struct ieee80211_device * dev,
+ u8 channel
+)
+{
+ PRT_DOT11D_INFO pDot11dInfo = GET_DOT11D_INFO(dev);
+ u8 default_chn = 0;
+ u32 i = 0;
+
+ for (i=1; i<= MAX_CHANNEL_NUMBER; i++)
+ {
+ if(pDot11dInfo->channel_map[i] > 0)
+ {
+ default_chn = i;
+ break;
+ }
+ }
+
+ if(MAX_CHANNEL_NUMBER < channel)
+ {
+ printk("IsLegalChannel(): Invalid Channel\n");
+ return default_chn;
+ }
+
+ if(pDot11dInfo->channel_map[channel] > 0)
+ return channel;
+
+ return default_chn;
+}
+
+#if 0
+EXPORT_SYMBOL(Dot11d_Init);
+EXPORT_SYMBOL(Dot11d_Reset);
+EXPORT_SYMBOL(Dot11d_UpdateCountryIe);
+EXPORT_SYMBOL(DOT11D_GetMaxTxPwrInDbm);
+EXPORT_SYMBOL(DOT11D_ScanComplete);
+EXPORT_SYMBOL(IsLegalChannel);
+EXPORT_SYMBOL(ToLegalChannel);
+#endif
+#endif
|