aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/net/wireless/ath5k/hw.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/wireless/ath5k/hw.c')
-rw-r--r--drivers/net/wireless/ath5k/hw.c152
1 files changed, 135 insertions, 17 deletions
diff --git a/drivers/net/wireless/ath5k/hw.c b/drivers/net/wireless/ath5k/hw.c
index ff579a2..87e7822 100644
--- a/drivers/net/wireless/ath5k/hw.c
+++ b/drivers/net/wireless/ath5k/hw.c
@@ -120,11 +120,69 @@ int ath5k_hw_register_timeout(struct ath5k_hw *ah, u32 reg, u32 flag, u32 val,
\***************************************/
/*
+ * Power On Self Test helper function
+ */
+static int ath5k_hw_post(struct ath5k_hw *ah)
+{
+
+ int i, c;
+ u16 cur_reg;
+ u16 regs[2] = {AR5K_STA_ID0, AR5K_PHY(8)};
+ u32 var_pattern;
+ u32 static_pattern[4] = {
+ 0x55555555, 0xaaaaaaaa,
+ 0x66666666, 0x99999999
+ };
+ u32 init_val;
+ u32 cur_val;
+
+ for (c = 0; c < 2; c++) {
+
+ cur_reg = regs[c];
+ init_val = ath5k_hw_reg_read(ah, cur_reg);
+
+ for (i = 0; i < 256; i++) {
+ var_pattern = i << 16 | i;
+ ath5k_hw_reg_write(ah, var_pattern, cur_reg);
+ cur_val = ath5k_hw_reg_read(ah, cur_reg);
+
+ if (cur_val != var_pattern) {
+ ATH5K_ERR(ah->ah_sc, "POST Failed !!!\n");
+ return -EAGAIN;
+ }
+
+ /* Found on ndiswrapper dumps */
+ var_pattern = 0x0039080f;
+ ath5k_hw_reg_write(ah, var_pattern, cur_reg);
+ }
+
+ for (i = 0; i < 4; i++) {
+ var_pattern = static_pattern[i];
+ ath5k_hw_reg_write(ah, var_pattern, cur_reg);
+ cur_val = ath5k_hw_reg_read(ah, cur_reg);
+
+ if (cur_val != var_pattern) {
+ ATH5K_ERR(ah->ah_sc, "POST Failed !!!\n");
+ return -EAGAIN;
+ }
+
+ /* Found on ndiswrapper dumps */
+ var_pattern = 0x003b080f;
+ ath5k_hw_reg_write(ah, var_pattern, cur_reg);
+ }
+ }
+
+ return 0;
+
+}
+
+/*
* Check if the device is supported and initialize the needed structs
*/
struct ath5k_hw *ath5k_hw_attach(struct ath5k_softc *sc, u8 mac_version)
{
struct ath5k_hw *ah;
+ struct pci_dev *pdev = sc->pdev;
u8 mac[ETH_ALEN];
int ret;
u32 srev;
@@ -204,15 +262,19 @@ struct ath5k_hw *ath5k_hw_attach(struct ath5k_softc *sc, u8 mac_version)
CHANNEL_2GHZ);
/* Return on unsuported chips (unsupported eeprom etc) */
- if(srev >= AR5K_SREV_VER_AR5416){
+ if ((srev >= AR5K_SREV_VER_AR5416) &&
+ (srev < AR5K_SREV_VER_AR2425)) {
ATH5K_ERR(sc, "Device not yet supported.\n");
ret = -ENODEV;
goto err_free;
+ } else if (srev == AR5K_SREV_VER_AR2425) {
+ ATH5K_WARN(sc, "Support for RF2425 is under development.\n");
}
/* Identify single chip solutions */
- if((srev <= AR5K_SREV_VER_AR5414) &&
- (srev >= AR5K_SREV_VER_AR2413)) {
+ if (((srev <= AR5K_SREV_VER_AR5414) &&
+ (srev >= AR5K_SREV_VER_AR2413)) ||
+ (srev == AR5K_SREV_VER_AR2425)) {
ah->ah_single_chip = true;
} else {
ah->ah_single_chip = false;
@@ -241,22 +303,65 @@ struct ath5k_hw *ath5k_hw_attach(struct ath5k_softc *sc, u8 mac_version)
} else if (ah->ah_radio_5ghz_revision < AR5K_SREV_RAD_SC1) {
ah->ah_radio = AR5K_RF2413;
ah->ah_phy_spending = AR5K_PHY_SPENDING_RF5112A;
- } else {
+ } else if (ah->ah_radio_5ghz_revision < AR5K_SREV_RAD_SC2) {
ah->ah_radio = AR5K_RF5413;
if (ah->ah_mac_srev <= AR5K_SREV_VER_AR5424 &&
ah->ah_mac_srev >= AR5K_SREV_VER_AR2424)
ah->ah_phy_spending = AR5K_PHY_SPENDING_RF5424;
- else if (ah->ah_mac_srev >= AR5K_SREV_VER_AR2425)
- ah->ah_phy_spending = AR5K_PHY_SPENDING_RF5112;
else
ah->ah_phy_spending = AR5K_PHY_SPENDING_RF5112A;
+ /*
+ * Register returns 0x4 for radio revision
+ * so ath5k_hw_radio_revision doesn't parse the value
+ * correctly. For now we are based on mac's srev to
+ * identify RF2425 radio.
+ */
+ } else if (srev == AR5K_SREV_VER_AR2425) {
+ ah->ah_radio = AR5K_RF2425;
+ ah->ah_phy_spending = AR5K_PHY_SPENDING_RF5112;
+ }
+ ah->ah_phy = AR5K_PHY(0);
+ /*
+ * Identify AR5212-based PCI-E cards
+ * And write some initial settings.
+ *
+ * (doing a "strings" on ndis driver
+ * -ar5211.sys- reveals the following
+ * pci-e related functions:
+ *
+ * pcieClockReq
+ * pcieRxErrNotify
+ * pcieL1SKPEnable
+ * pcieAspm
+ * pcieDisableAspmOnRfWake
+ * pciePowerSaveEnable
+ *
+ * I guess these point to ClockReq but
+ * i'm not sure.)
+ */
+ if ((ah->ah_version == AR5K_AR5212) && (pdev->is_pcie)) {
+ ath5k_hw_reg_write(ah, 0x9248fc00, 0x4080);
+ ath5k_hw_reg_write(ah, 0x24924924, 0x4080);
+ ath5k_hw_reg_write(ah, 0x28000039, 0x4080);
+ ath5k_hw_reg_write(ah, 0x53160824, 0x4080);
+ ath5k_hw_reg_write(ah, 0xe5980579, 0x4080);
+ ath5k_hw_reg_write(ah, 0x001defff, 0x4080);
+ ath5k_hw_reg_write(ah, 0x1aaabe40, 0x4080);
+ ath5k_hw_reg_write(ah, 0xbe105554, 0x4080);
+ ath5k_hw_reg_write(ah, 0x000e3007, 0x4080);
+ ath5k_hw_reg_write(ah, 0x00000000, 0x4084);
}
- ah->ah_phy = AR5K_PHY(0);
+ /*
+ * POST
+ */
+ ret = ath5k_hw_post(ah);
+ if (ret)
+ goto err_free;
/*
* Get card capabilities, values, ...
@@ -391,7 +496,7 @@ static int ath5k_hw_nic_wakeup(struct ath5k_hw *ah, int flags, bool initial)
ret = ath5k_hw_nic_reset(ah, AR5K_RESET_CTL_PCU |
AR5K_RESET_CTL_BASEBAND | bus_flags);
if (ret) {
- ATH5K_ERR(ah->ah_sc, "failed to reset the MAC Chip + PCI\n");
+ ATH5K_ERR(ah->ah_sc, "failed to reset the MAC Chip\n");
return -EIO;
}
@@ -655,7 +760,8 @@ int ath5k_hw_reset(struct ath5k_hw *ah, enum ieee80211_if_types op_mode,
if (ah->ah_radio != AR5K_RF5111 &&
ah->ah_radio != AR5K_RF5112 &&
ah->ah_radio != AR5K_RF5413 &&
- ah->ah_radio != AR5K_RF2413) {
+ ah->ah_radio != AR5K_RF2413 &&
+ ah->ah_radio != AR5K_RF2425) {
ATH5K_ERR(ah->ah_sc,
"invalid phy radio: %u\n", ah->ah_radio);
return -EINVAL;
@@ -2849,15 +2955,19 @@ int ath5k_hw_beaconq_finish(struct ath5k_hw *ah, unsigned long phys_addr)
* Update mib counters (statistics)
*/
void ath5k_hw_update_mib_counters(struct ath5k_hw *ah,
- struct ath5k_mib_stats *statistics)
+ struct ieee80211_low_level_stats *stats)
{
ATH5K_TRACE(ah->ah_sc);
+
/* Read-And-Clear */
- statistics->ackrcv_bad += ath5k_hw_reg_read(ah, AR5K_ACK_FAIL);
- statistics->rts_bad += ath5k_hw_reg_read(ah, AR5K_RTS_FAIL);
- statistics->rts_good += ath5k_hw_reg_read(ah, AR5K_RTS_OK);
- statistics->fcs_bad += ath5k_hw_reg_read(ah, AR5K_FCS_FAIL);
- statistics->beacons += ath5k_hw_reg_read(ah, AR5K_BEACON_CNT);
+ stats->dot11ACKFailureCount += ath5k_hw_reg_read(ah, AR5K_ACK_FAIL);
+ stats->dot11RTSFailureCount += ath5k_hw_reg_read(ah, AR5K_RTS_FAIL);
+ stats->dot11RTSSuccessCount += ath5k_hw_reg_read(ah, AR5K_RTS_OK);
+ stats->dot11FCSErrorCount += ath5k_hw_reg_read(ah, AR5K_FCS_FAIL);
+
+ /* XXX: Should we use this to track beacon count ?
+ * -we read it anyway to clear the register */
+ ath5k_hw_reg_read(ah, AR5K_BEACON_CNT);
/* Reset profile count registers on 5212*/
if (ah->ah_version == AR5K_AR5212) {
@@ -2958,8 +3068,16 @@ int ath5k_hw_reset_key(struct ath5k_hw *ah, u16 entry)
for (i = 0; i < AR5K_KEYCACHE_SIZE; i++)
ath5k_hw_reg_write(ah, 0, AR5K_KEYTABLE_OFF(entry, i));
- /* Set NULL encryption on non-5210*/
- if (ah->ah_version != AR5K_AR5210)
+ /*
+ * Set NULL encryption on AR5212+
+ *
+ * Note: AR5K_KEYTABLE_TYPE -> AR5K_KEYTABLE_OFF(entry, 5)
+ * AR5K_KEYTABLE_TYPE_NULL -> 0x00000007
+ *
+ * Note2: Windows driver (ndiswrapper) sets this to
+ * 0x00000714 instead of 0x00000007
+ */
+ if (ah->ah_version > AR5K_AR5211)
ath5k_hw_reg_write(ah, AR5K_KEYTABLE_TYPE_NULL,
AR5K_KEYTABLE_TYPE(entry));
generated by cgit v1.1 at 2025-08-15 16:13:45 +0000