aboutsummaryrefslogtreecommitdiff
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.c4529
1 files changed, 0 insertions, 4529 deletions
diff --git a/drivers/net/wireless/ath5k/hw.c b/drivers/net/wireless/ath5k/hw.c
deleted file mode 100644
index ad1a5b422c8..00000000000
--- a/drivers/net/wireless/ath5k/hw.c
+++ /dev/null
@@ -1,4529 +0,0 @@
-/*
- * Copyright (c) 2004-2007 Reyk Floeter <reyk@openbsd.org>
- * Copyright (c) 2006-2007 Nick Kossifidis <mickflemm@gmail.com>
- * Copyright (c) 2007 Matthew W. S. Bell <mentor@madwifi.org>
- * Copyright (c) 2007 Luis Rodriguez <mcgrof@winlab.rutgers.edu>
- * Copyright (c) 2007 Pavel Roskin <proski@gnu.org>
- * Copyright (c) 2007 Jiri Slaby <jirislaby@gmail.com>
- *
- * 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.
- *
- */
-
-/*
- * HW related functions for Atheros Wireless LAN devices.
- */
-
-#include <linux/pci.h>
-#include <linux/delay.h>
-
-#include "reg.h"
-#include "base.h"
-#include "debug.h"
-
-/* Rate tables */
-static const struct ath5k_rate_table ath5k_rt_11a = AR5K_RATES_11A;
-static const struct ath5k_rate_table ath5k_rt_11b = AR5K_RATES_11B;
-static const struct ath5k_rate_table ath5k_rt_11g = AR5K_RATES_11G;
-static const struct ath5k_rate_table ath5k_rt_turbo = AR5K_RATES_TURBO;
-static const struct ath5k_rate_table ath5k_rt_xr = AR5K_RATES_XR;
-
-/* Prototypes */
-static int ath5k_hw_nic_reset(struct ath5k_hw *, u32);
-static int ath5k_hw_nic_wakeup(struct ath5k_hw *, int, bool);
-static int ath5k_hw_setup_4word_tx_desc(struct ath5k_hw *, struct ath5k_desc *,
- unsigned int, unsigned int, enum ath5k_pkt_type, unsigned int,
- unsigned int, unsigned int, unsigned int, unsigned int, unsigned int,
- unsigned int, unsigned int);
-static int ath5k_hw_setup_xr_tx_desc(struct ath5k_hw *, struct ath5k_desc *,
- unsigned int, unsigned int, unsigned int, unsigned int, unsigned int,
- unsigned int);
-static int ath5k_hw_proc_4word_tx_status(struct ath5k_hw *, struct ath5k_desc *,
- struct ath5k_tx_status *);
-static int ath5k_hw_setup_2word_tx_desc(struct ath5k_hw *, struct ath5k_desc *,
- unsigned int, unsigned int, enum ath5k_pkt_type, unsigned int,
- unsigned int, unsigned int, unsigned int, unsigned int, unsigned int,
- unsigned int, unsigned int);
-static int ath5k_hw_proc_2word_tx_status(struct ath5k_hw *, struct ath5k_desc *,
- struct ath5k_tx_status *);
-static int ath5k_hw_proc_5212_rx_status(struct ath5k_hw *, struct ath5k_desc *,
- struct ath5k_rx_status *);
-static int ath5k_hw_proc_5210_rx_status(struct ath5k_hw *, struct ath5k_desc *,
- struct ath5k_rx_status *);
-static int ath5k_hw_get_capabilities(struct ath5k_hw *);
-
-static int ath5k_eeprom_init(struct ath5k_hw *);
-static int ath5k_eeprom_read_mac(struct ath5k_hw *, u8 *);
-
-static int ath5k_hw_enable_pspoll(struct ath5k_hw *, u8 *, u16);
-static int ath5k_hw_disable_pspoll(struct ath5k_hw *);
-
-/*
- * Enable to overwrite the country code (use "00" for debug)
- */
-#if 0
-#define COUNTRYCODE "00"
-#endif
-
-/*******************\
- General Functions
-\*******************/
-
-/*
- * Functions used internaly
- */
-
-static inline unsigned int ath5k_hw_htoclock(unsigned int usec, bool turbo)
-{
- return turbo ? (usec * 80) : (usec * 40);
-}
-
-static inline unsigned int ath5k_hw_clocktoh(unsigned int clock, bool turbo)
-{
- return turbo ? (clock / 80) : (clock / 40);
-}
-
-/*
- * Check if a register write has been completed
- */
-int ath5k_hw_register_timeout(struct ath5k_hw *ah, u32 reg, u32 flag, u32 val,
- bool is_set)
-{
- int i;
- u32 data;
-
- for (i = AR5K_TUNE_REGISTER_TIMEOUT; i > 0; i--) {
- data = ath5k_hw_reg_read(ah, reg);
- if (is_set && (data & flag))
- break;
- else if ((data & flag) == val)
- break;
- udelay(15);
- }
-
- return (i <= 0) ? -EAGAIN : 0;
-}
-
-
-/***************************************\
- Attach/Detach Functions
-\***************************************/
-
-/*
- * 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];
-
- /* Save previous value */
- 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);
- }
-
- /* Restore previous value */
- ath5k_hw_reg_write(ah, init_val, 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;
-
- /*If we passed the test malloc a ath5k_hw struct*/
- ah = kzalloc(sizeof(struct ath5k_hw), GFP_KERNEL);
- if (ah == NULL) {
- ret = -ENOMEM;
- ATH5K_ERR(sc, "out of memory\n");
- goto err;
- }
-
- ah->ah_sc = sc;
- ah->ah_iobase = sc->iobase;
-
- /*
- * HW information
- */
-
- ah->ah_op_mode = IEEE80211_IF_TYPE_STA;
- ah->ah_radar.r_enabled = AR5K_TUNE_RADAR_ALERT;
- ah->ah_turbo = false;
- ah->ah_txpower.txp_tpc = AR5K_TUNE_TPC_TXPOWER;
- ah->ah_imr = 0;
- ah->ah_atim_window = 0;
- ah->ah_aifs = AR5K_TUNE_AIFS;
- ah->ah_cw_min = AR5K_TUNE_CWMIN;
- ah->ah_limit_tx_retries = AR5K_INIT_TX_RETRY;
- ah->ah_software_retry = false;
- ah->ah_ant_diversity = AR5K_TUNE_ANT_DIVERSITY;
-
- /*
- * Set the mac revision based on the pci id
- */
- ah->ah_version = mac_version;
-
- /*Fill the ath5k_hw struct with the needed functions*/
- if (ah->ah_version == AR5K_AR5212)
- ah->ah_magic = AR5K_EEPROM_MAGIC_5212;
- else if (ah->ah_version == AR5K_AR5211)
- ah->ah_magic = AR5K_EEPROM_MAGIC_5211;
-
- if (ah->ah_version == AR5K_AR5212) {
- ah->ah_setup_tx_desc = ath5k_hw_setup_4word_tx_desc;
- ah->ah_setup_xtx_desc = ath5k_hw_setup_xr_tx_desc;
- ah->ah_proc_tx_desc = ath5k_hw_proc_4word_tx_status;
- } else {
- ah->ah_setup_tx_desc = ath5k_hw_setup_2word_tx_desc;
- ah->ah_setup_xtx_desc = ath5k_hw_setup_xr_tx_desc;
- ah->ah_proc_tx_desc = ath5k_hw_proc_2word_tx_status;
- }
-
- if (ah->ah_version == AR5K_AR5212)
- ah->ah_proc_rx_desc = ath5k_hw_proc_5212_rx_status;
- else if (ah->ah_version <= AR5K_AR5211)
- ah->ah_proc_rx_desc = ath5k_hw_proc_5210_rx_status;
-
- /* Bring device out of sleep and reset it's units */
- ret = ath5k_hw_nic_wakeup(ah, AR5K_INIT_MODE, true);
- if (ret)
- goto err_free;
-
- /* Get MAC, PHY and RADIO revisions */
- srev = ath5k_hw_reg_read(ah, AR5K_SREV);
- ah->ah_mac_srev = srev;
- ah->ah_mac_version = AR5K_REG_MS(srev, AR5K_SREV_VER);
- ah->ah_mac_revision = AR5K_REG_MS(srev, AR5K_SREV_REV);
- ah->ah_phy_revision = ath5k_hw_reg_read(ah, AR5K_PHY_CHIP_ID) &
- 0xffffffff;
- ah->ah_radio_5ghz_revision = ath5k_hw_radio_revision(ah,
- CHANNEL_5GHZ);
-
- if (ah->ah_version == AR5K_AR5210)
- ah->ah_radio_2ghz_revision = 0;
- else
- ah->ah_radio_2ghz_revision = ath5k_hw_radio_revision(ah,
- CHANNEL_2GHZ);
-
- /* Return on unsuported chips (unsupported eeprom etc) */
- 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)) ||
- (srev == AR5K_SREV_VER_AR2425)) {
- ah->ah_single_chip = true;
- } else {
- ah->ah_single_chip = false;
- }
-
- /* Single chip radio */
- if (ah->ah_radio_2ghz_revision == ah->ah_radio_5ghz_revision)
- ah->ah_radio_2ghz_revision = 0;
-
- /* Identify the radio chip*/
- if (ah->ah_version == AR5K_AR5210) {
- ah->ah_radio = AR5K_RF5110;
- /*
- * Register returns 0x0/0x04 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_RF2425;
- } else if (ah->ah_radio_5ghz_revision < AR5K_SREV_RAD_5112) {
- ah->ah_radio = AR5K_RF5111;
- ah->ah_phy_spending = AR5K_PHY_SPENDING_RF5111;
- } else if (ah->ah_radio_5ghz_revision < AR5K_SREV_RAD_SC0) {
- ah->ah_radio = AR5K_RF5112;
- ah->ah_phy_spending = AR5K_PHY_SPENDING_RF5112;
- } else if (ah->ah_radio_5ghz_revision < AR5K_SREV_RAD_SC1) {
- ah->ah_radio = AR5K_RF2413;
- ah->ah_phy_spending = AR5K_PHY_SPENDING_RF2413;
- } else if (ah->ah_radio_5ghz_revision < AR5K_SREV_RAD_SC2) {
- ah->ah_radio = AR5K_RF5413;
- ah->ah_phy_spending = AR5K_PHY_SPENDING_RF5413;
- } else if (ah->ah_radio_5ghz_revision < AR5K_SREV_RAD_5133) {
- /* AR5424 */
- if (srev >= AR5K_SREV_VER_AR5424) {
- ah->ah_radio = AR5K_RF5413;
- ah->ah_phy_spending = AR5K_PHY_SPENDING_RF5413;
- /* AR2424 */
- } else {
- ah->ah_radio = AR5K_RF2413; /* For testing */
- ah->ah_phy_spending = AR5K_PHY_SPENDING_RF2413;
- }
- }
- ah->ah_phy = AR5K_PHY(0);
-
- /*
- * Write PCI-E power save settings
- */
- 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);
- }
-
- /*
- * POST
- */
- ret = ath5k_hw_post(ah);
- if (ret)
- goto err_free;
-
- /* Write AR5K_PCICFG_UNK on 2112B and later chips */
- if (ah->ah_radio_5ghz_revision > AR5K_SREV_RAD_2112B ||
- srev > AR5K_SREV_VER_AR2413) {
- ath5k_hw_reg_write(ah, AR5K_PCICFG_UNK, AR5K_PCICFG);
- }
-
- /*
- * Get card capabilities, values, ...
- */
- ret = ath5k_eeprom_init(ah);
- if (ret) {
- ATH5K_ERR(sc, "unable to init EEPROM\n");
- goto err_free;
- }
-
- /* Get misc capabilities */
- ret = ath5k_hw_get_capabilities(ah);
- if (ret) {
- ATH5K_ERR(sc, "unable to get device capabilities: 0x%04x\n",
- sc->pdev->device);
- goto err_free;
- }
-
- /* Get MAC address */
- ret = ath5k_eeprom_read_mac(ah, mac);
- if (ret) {
- ATH5K_ERR(sc, "unable to read address from EEPROM: 0x%04x\n",
- sc->pdev->device);
- goto err_free;
- }
-
- ath5k_hw_set_lladdr(ah, mac);
- /* Set BSSID to bcast address: ff:ff:ff:ff:ff:ff for now */
- memset(ah->ah_bssid, 0xff, ETH_ALEN);
- ath5k_hw_set_associd(ah, ah->ah_bssid, 0);
- ath5k_hw_set_opmode(ah);
-
- ath5k_hw_set_rfgain_opt(ah);
-
- return ah;
-err_free:
- kfree(ah);
-err:
- return ERR_PTR(ret);
-}
-
-/*
- * Bring up MAC + PHY Chips
- */
-static int ath5k_hw_nic_wakeup(struct ath5k_hw *ah, int flags, bool initial)
-{
- struct pci_dev *pdev = ah->ah_sc->pdev;
- u32 turbo, mode, clock, bus_flags;
- int ret;
-
- turbo = 0;
- mode = 0;
- clock = 0;
-
- ATH5K_TRACE(ah->ah_sc);
-
- /* Wakeup the device */
- ret = ath5k_hw_set_power(ah, AR5K_PM_AWAKE, true, 0);
- if (ret) {
- ATH5K_ERR(ah->ah_sc, "failed to wakeup the MAC Chip\n");
- return ret;
- }
-
- if (ah->ah_version != AR5K_AR5210) {
- /*
- * Get channel mode flags
- */
-
- if (ah->ah_radio >= AR5K_RF5112) {
- mode = AR5K_PHY_MODE_RAD_RF5112;
- clock = AR5K_PHY_PLL_RF5112;
- } else {
- mode = AR5K_PHY_MODE_RAD_RF5111; /*Zero*/
- clock = AR5K_PHY_PLL_RF5111; /*Zero*/
- }
-
- if (flags & CHANNEL_2GHZ) {
- mode |= AR5K_PHY_MODE_FREQ_2GHZ;
- clock |= AR5K_PHY_PLL_44MHZ;
-
- if (flags & CHANNEL_CCK) {
- mode |= AR5K_PHY_MODE_MOD_CCK;
- } else if (flags & CHANNEL_OFDM) {
- /* XXX Dynamic OFDM/CCK is not supported by the
- * AR5211 so we set MOD_OFDM for plain g (no
- * CCK headers) operation. We need to test
- * this, 5211 might support ofdm-only g after
- * all, there are also initial register values
- * in the code for g mode (see initvals.c). */
- if (ah->ah_version == AR5K_AR5211)
- mode |= AR5K_PHY_MODE_MOD_OFDM;
- else
- mode |= AR5K_PHY_MODE_MOD_DYN;
- } else {
- ATH5K_ERR(ah->ah_sc,
- "invalid radio modulation mode\n");
- return -EINVAL;
- }
- } else if (flags & CHANNEL_5GHZ) {
- mode |= AR5K_PHY_MODE_FREQ_5GHZ;
- clock |= AR5K_PHY_PLL_40MHZ;
-
- if (flags & CHANNEL_OFDM)
- mode |= AR5K_PHY_MODE_MOD_OFDM;
- else {
- ATH5K_ERR(ah->ah_sc,
- "invalid radio modulation mode\n");
- return -EINVAL;
- }
- } else {
- ATH5K_ERR(ah->ah_sc, "invalid radio frequency mode\n");
- return -EINVAL;
- }
-
- if (flags & CHANNEL_TURBO)
- turbo = AR5K_PHY_TURBO_MODE | AR5K_PHY_TURBO_SHORT;
- } else { /* Reset the device */
-
- /* ...enable Atheros turbo mode if requested */
- if (flags & CHANNEL_TURBO)
- ath5k_hw_reg_write(ah, AR5K_PHY_TURBO_MODE,
- AR5K_PHY_TURBO);
- }
-
- /* reseting PCI on PCI-E cards results card to hang
- * and always return 0xffff... so we ingore that flag
- * for PCI-E cards */
- bus_flags = (pdev->is_pcie) ? 0 : AR5K_RESET_CTL_PCI;
-
- /* Reset chipset */
- 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\n");
- return -EIO;
- }
-
- if (ah->ah_version == AR5K_AR5210)
- udelay(2300);
-
- /* ...wakeup again!*/
- ret = ath5k_hw_set_power(ah, AR5K_PM_AWAKE, true, 0);
- if (ret) {
- ATH5K_ERR(ah->ah_sc, "failed to resume the MAC Chip\n");
- return ret;
- }
-
- /* ...final warm reset */
- if (ath5k_hw_nic_reset(ah, 0)) {
- ATH5K_ERR(ah->ah_sc, "failed to warm reset the MAC Chip\n");
- return -EIO;
- }
-
- if (ah->ah_version != AR5K_AR5210) {
- /* ...set the PHY operating mode */
- ath5k_hw_reg_write(ah, clock, AR5K_PHY_PLL);
- udelay(300);
-
- ath5k_hw_reg_write(ah, mode, AR5K_PHY_MODE);
- ath5k_hw_reg_write(ah, turbo, AR5K_PHY_TURBO);
- }
-
- return 0;
-}
-
-/*
- * Get the rate table for a specific operation mode
- */
-const struct ath5k_rate_table *ath5k_hw_get_rate_table(struct ath5k_hw *ah,
- unsigned int mode)
-{
- ATH5K_TRACE(ah->ah_sc);
-
- if (!test_bit(mode, ah->ah_capabilities.cap_mode))
- return NULL;
-
- /* Get rate tables */
- switch (mode) {
- case AR5K_MODE_11A:
- return &ath5k_rt_11a;
- case AR5K_MODE_11A_TURBO:
- return &ath5k_rt_turbo;
- case AR5K_MODE_11B:
- return &ath5k_rt_11b;
- case AR5K_MODE_11G:
- return &ath5k_rt_11g;
- case AR5K_MODE_11G_TURBO:
- return &ath5k_rt_xr;
- }
-
- return NULL;
-}
-
-/*
- * Free the ath5k_hw struct
- */
-void ath5k_hw_detach(struct ath5k_hw *ah)
-{
- ATH5K_TRACE(ah->ah_sc);
-
- __set_bit(ATH_STAT_INVALID, ah->ah_sc->status);
-
- if (ah->ah_rf_banks != NULL)
- kfree(ah->ah_rf_banks);
-
- /* assume interrupts are down */
- kfree(ah);
-}
-
-/****************************\
- Reset function and helpers
-\****************************/
-
-/**
- * ath5k_hw_write_ofdm_timings - set OFDM timings on AR5212
- *
- * @ah: the &struct ath5k_hw
- * @channel: the currently set channel upon reset
- *
- * Write the OFDM timings for the AR5212 upon reset. This is a helper for
- * ath5k_hw_reset(). This seems to tune the PLL a specified frequency
- * depending on the bandwidth of the channel.
- *
- */
-static inline int ath5k_hw_write_ofdm_timings(struct ath5k_hw *ah,
- struct ieee80211_channel *channel)
-{
- /* Get exponent and mantissa and set it */
- u32 coef_scaled, coef_exp, coef_man,
- ds_coef_exp, ds_coef_man, clock;
-
- if (!(ah->ah_version == AR5K_AR5212) ||
- !(channel->hw_value & CHANNEL_OFDM))
- BUG();
-
- /* Seems there are two PLLs, one for baseband sampling and one
- * for tuning. Tuning basebands are 40 MHz or 80MHz when in
- * turbo. */
- clock = channel->hw_value & CHANNEL_TURBO ? 80 : 40;
- coef_scaled = ((5 * (clock << 24)) / 2) /
- channel->center_freq;
-
- for (coef_exp = 31; coef_exp > 0; coef_exp--)
- if ((coef_scaled >> coef_exp) & 0x1)
- break;
-
- if (!coef_exp)
- return -EINVAL;
-
- coef_exp = 14 - (coef_exp - 24);
- coef_man = coef_scaled +
- (1 << (24 - coef_exp - 1));
- ds_coef_man = coef_man >> (24 - coef_exp);
- ds_coef_exp = coef_exp - 16;
-
- AR5K_REG_WRITE_BITS(ah, AR5K_PHY_TIMING_3,
- AR5K_PHY_TIMING_3_DSC_MAN, ds_coef_man);
- AR5K_REG_WRITE_BITS(ah, AR5K_PHY_TIMING_3,
- AR5K_PHY_TIMING_3_DSC_EXP, ds_coef_exp);
-
- return 0;
-}
-
-/**
- * ath5k_hw_write_rate_duration - set rate duration during hw resets
- *
- * @ah: the &struct ath5k_hw
- * @mode: one of enum ath5k_driver_mode
- *
- * Write the rate duration table for the current mode upon hw reset. This
- * is a helper for ath5k_hw_reset(). It seems all this is doing is setting
- * an ACK timeout for the hardware for the current mode for each rate. The
- * rates which are capable of short preamble (802.11b rates 2Mbps, 5.5Mbps,
- * and 11Mbps) have another register for the short preamble ACK timeout
- * calculation.
- *
- */
-static inline void ath5k_hw_write_rate_duration(struct ath5k_hw *ah,
- unsigned int mode)
-{
- struct ath5k_softc *sc = ah->ah_sc;
- const struct ath5k_rate_table *rt;
- struct ieee80211_rate srate = {};
- unsigned int i;
-
- /* Get rate table for the current operating mode */
- rt = ath5k_hw_get_rate_table(ah, mode);
-
- /* Write rate duration table */
- for (i = 0; i < rt->rate_count; i++) {
- const struct ath5k_rate *rate, *control_rate;
-
- u32 reg;
- u16 tx_time;
-
- rate = &rt->rates[i];
- control_rate = &rt->rates[rate->control_rate];
-
- /* Set ACK timeout */
- reg = AR5K_RATE_DUR(rate->rate_code);
-
- srate.bitrate = control_rate->rate_kbps/100;
-
- /* An ACK frame consists of 10 bytes. If you add the FCS,
- * which ieee80211_generic_frame_duration() adds,
- * its 14 bytes. Note we use the control rate and not the
- * actual rate for this rate. See mac80211 tx.c
- * ieee80211_duration() for a brief description of
- * what rate we should choose to TX ACKs. */
- tx_time = le16_to_cpu(ieee80211_generic_frame_duration(sc->hw,
- sc->vif, 10, &srate));
-
- ath5k_hw_reg_write(ah, tx_time, reg);
-
- if (!HAS_SHPREAMBLE(i))
- continue;
-
- /*
- * We're not distinguishing short preamble here,
- * This is true, all we'll get is a longer value here
- * which is not necessarilly bad. We could use
- * export ieee80211_frame_duration() but that needs to be
- * fixed first to be properly used by mac802111 drivers:
- *
- * - remove erp stuff and let the routine figure ofdm
- * erp rates
- * - remove passing argument ieee80211_local as
- * drivers don't have access to it
- * - move drivers using ieee80211_generic_frame_duration()
- * to this
- */
- ath5k_hw_reg_write(ah, tx_time,
- reg + (AR5K_SET_SHORT_PREAMBLE << 2));
- }
-}
-
-/*
- * Main reset function
- */
-int ath5k_hw_reset(struct ath5k_hw *ah, enum ieee80211_if_types op_mode,
- struct ieee80211_channel *channel, bool change_channel)
-{
- struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom;
- struct pci_dev *pdev = ah->ah_sc->pdev;
- u32 data, s_seq, s_ant, s_led[3], dma_size;
- unsigned int i, mode, freq, ee_mode, ant[2];
- int ret;
-
- ATH5K_TRACE(ah->ah_sc);
-
- s_seq = 0;
- s_ant = 0;
- ee_mode = 0;
- freq = 0;
- mode = 0;
-
- /*
- * Save some registers before a reset
- */
- /*DCU/Antenna selection not available on 5210*/
- if (ah->ah_version != AR5K_AR5210) {
- if (change_channel) {
- /* Seq number for queue 0 -do this for all queues ? */
- s_seq = ath5k_hw_reg_read(ah,
- AR5K_QUEUE_DFS_SEQNUM(0));
- /*Default antenna*/
- s_ant = ath5k_hw_reg_read(ah, AR5K_DEFAULT_ANTENNA);
- }
- }
-
- /*GPIOs*/
- s_led[0] = ath5k_hw_reg_read(ah, AR5K_PCICFG) & AR5K_PCICFG_LEDSTATE;
- s_led[1] = ath5k_hw_reg_read(ah, AR5K_GPIOCR);
- s_led[2] = ath5k_hw_reg_read(ah, AR5K_GPIODO);
-
- if (change_channel && ah->ah_rf_banks != NULL)
- ath5k_hw_get_rf_gain(ah);
-
-
- /*Wakeup the device*/
- ret = ath5k_hw_nic_wakeup(ah, channel->hw_value, false);
- if (ret)
- return ret;
-
- /*
- * Initialize operating mode
- */
- ah->ah_op_mode = op_mode;
-
- /*
- * 5111/5112 Settings
- * 5210 only comes with RF5110
- */
- if (ah->ah_version != AR5K_AR5210) {
- 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_RF2425) {
- ATH5K_ERR(ah->ah_sc,
- "invalid phy radio: %u\n", ah->ah_radio);
- return -EINVAL;
- }
-
- switch (channel->hw_value & CHANNEL_MODES) {
- case CHANNEL_A:
- mode = AR5K_MODE_11A;
- freq = AR5K_INI_RFGAIN_5GHZ;
- ee_mode = AR5K_EEPROM_MODE_11A;
- break;
- case CHANNEL_G:
- mode = AR5K_MODE_11G;
- freq = AR5K_INI_RFGAIN_2GHZ;
- ee_mode = AR5K_EEPROM_MODE_11G;
- break;
- case CHANNEL_B:
- mode = AR5K_MODE_11B;
- freq = AR5K_INI_RFGAIN_2GHZ;
- ee_mode = AR5K_EEPROM_MODE_11B;
- break;
- case CHANNEL_T:
- mode = AR5K_MODE_11A_TURBO;
- freq = AR5K_INI_RFGAIN_5GHZ;
- ee_mode = AR5K_EEPROM_MODE_11A;
- break;
- /*Is this ok on 5211 too ?*/
- case CHANNEL_TG:
- mode = AR5K_MODE_11G_TURBO;
- freq = AR5K_INI_RFGAIN_2GHZ;
- ee_mode = AR5K_EEPROM_MODE_11G;
- break;
- case CHANNEL_XR:
- if (ah->ah_version == AR5K_AR5211) {
- ATH5K_ERR(ah->ah_sc,
- "XR mode not available on 5211");
- return -EINVAL;
- }
- mode = AR5K_MODE_XR;
- freq = AR5K_INI_RFGAIN_5GHZ;
- ee_mode = AR5K_EEPROM_MODE_11A;
- break;
- default:
- ATH5K_ERR(ah->ah_sc,
- "invalid channel: %d\n", channel->center_freq);
- return -EINVAL;
- }
-
- /* PHY access enable */
- ath5k_hw_reg_write(ah, AR5K_PHY_SHIFT_5GHZ, AR5K_PHY(0));
-
- }
-
- ret = ath5k_hw_write_initvals(ah, mode, change_channel);
- if (ret)
- return ret;
-
- /*
- * 5211/5212 Specific
- */
- if (ah->ah_version != AR5K_AR5210) {
- /*
- * Write initial RF gain settings
- * This should work for both 5111/5112
- */
- ret = ath5k_hw_rfgain(ah, freq);
- if (ret)
- return ret;
-
- mdelay(1);
-
- /*
- * Write some more initial register settings
- */
- if (ah->ah_version == AR5K_AR5212) {
- ath5k_hw_reg_write(ah, 0x0002a002, 0x982c);
-
- if (channel->hw_value == CHANNEL_G)
- if (ah->ah_mac_srev < AR5K_SREV_VER_AR2413)
- ath5k_hw_reg_write(ah, 0x00f80d80,
- 0x994c);
- else if (ah->ah_mac_srev < AR5K_SREV_VER_AR2424)
- ath5k_hw_reg_write(ah, 0x00380140,
- 0x994c);
- else if (ah->ah_mac_srev < AR5K_SREV_VER_AR2425)
- ath5k_hw_reg_write(ah, 0x00fc0ec0,
- 0x994c);
- else /* 2425 */
- ath5k_hw_reg_write(ah, 0x00fc0fc0,
- 0x994c);
- else
- ath5k_hw_reg_write(ah, 0x00000000, 0x994c);
-
- /* Some bits are disabled here, we know nothing about
- * register 0xa228 yet, most of the times this ends up
- * with a value 0x9b5 -haven't seen any dump with
- * a different value- */
- /* Got this from decompiling binary HAL */
- data = ath5k_hw_reg_read(ah, 0xa228);
- data &= 0xfffffdff;
- ath5k_hw_reg_write(ah, data, 0xa228);
-
- data = ath5k_hw_reg_read(ah, 0xa228);
- data &= 0xfffe03ff;
- ath5k_hw_reg_write(ah, data, 0xa228);
- data = 0;
-
- /* Just write 0x9b5 ? */
- /* ath5k_hw_reg_write(ah, 0x000009b5, 0xa228); */
- ath5k_hw_reg_write(ah, 0x0000000f, AR5K_SEQ_MASK);
- ath5k_hw_reg_write(ah, 0x00000000, 0xa254);
- ath5k_hw_reg_write(ah, 0x0000000e, AR5K_PHY_SCAL);
- }
-
- /* Fix for first revision of the RF5112 RF chipset */
- if (ah->ah_radio >= AR5K_RF5112 &&
- ah->ah_radio_5ghz_revision <
- AR5K_SREV_RAD_5112A) {
- ath5k_hw_reg_write(ah, AR5K_PHY_CCKTXCTL_WORLD,
- AR5K_PHY_CCKTXCTL);
- if (channel->hw_value & CHANNEL_5GHZ)
- data = 0xffb81020;
- else
- data = 0xffb80d20;
- ath5k_hw_reg_write(ah, data, AR5K_PHY_FRAME_CTL);
- data = 0;
- }
-
- /*
- * Set TX power (FIXME)
- */
- ret = ath5k_hw_txpower(ah, channel, AR5K_TUNE_DEFAULT_TXPOWER);
- if (ret)
- return ret;
-
- /* Write rate duration table only on AR5212 and if
- * virtual interface has already been brought up
- * XXX: rethink this after new mode changes to
- * mac80211 are integrated */
- if (ah->ah_version == AR5K_AR5212 &&
- ah->ah_sc->vif != NULL)
- ath5k_hw_write_rate_duration(ah, mode);
-
- /*
- * Write RF registers
- */
- ret = ath5k_hw_rfregs(ah, channel, mode);
- if (ret)
- return ret;
-
- /*
- * Configure additional registers
- */
-
- /* Write OFDM timings on 5212*/
- if (ah->ah_version == AR5K_AR5212 &&
- channel->hw_value & CHANNEL_OFDM) {
- ret = ath5k_hw_write_ofdm_timings(ah, channel);
- if (ret)
- return ret;
- }
-
- /*Enable/disable 802.11b mode on 5111
- (enable 2111 frequency converter + CCK)*/
- if (ah->ah_radio == AR5K_RF5111) {
- if (mode == AR5K_MODE_11B)
- AR5K_REG_ENABLE_BITS(ah, AR5K_TXCFG,
- AR5K_TXCFG_B_MODE);
- else
- AR5K_REG_DISABLE_BITS(ah, AR5K_TXCFG,
- AR5K_TXCFG_B_MODE);
- }
-
- /*
- * Set channel and calibrate the PHY
- */
- ret = ath5k_hw_channel(ah, channel);
- if (ret)
- return ret;
-
- /* Set antenna mode */
- AR5K_REG_MASKED_BITS(ah, AR5K_PHY_ANT_CTL,
- ah->ah_antenna[ee_mode][0], 0xfffffc06);
-
- /*
- * In case a fixed antenna was set as default
- * write the same settings on both AR5K_PHY_ANT_SWITCH_TABLE
- * registers.
- */
- if (s_ant != 0){
- if (s_ant == AR5K_ANT_FIXED_A) /* 1 - Main */
- ant[0] = ant[1] = AR5K_ANT_FIXED_A;
- else /* 2 - Aux */
- ant[0] = ant[1] = AR5K_ANT_FIXED_B;
- } else {
- ant[0] = AR5K_ANT_FIXED_A;
- ant[1] = AR5K_ANT_FIXED_B;
- }
-
- ath5k_hw_reg_write(ah, ah->ah_antenna[ee_mode][ant[0]],
- AR5K_PHY_ANT_SWITCH_TABLE_0);
- ath5k_hw_reg_write(ah, ah->ah_antenna[ee_mode][ant[1]],
- AR5K_PHY_ANT_SWITCH_TABLE_1);
-
- /* Commit values from EEPROM */
- if (ah->ah_radio == AR5K_RF5111)
- AR5K_REG_WRITE_BITS(ah, AR5K_PHY_FRAME_CTL,
- AR5K_PHY_FRAME_CTL_TX_CLIP, ee->ee_tx_clip);
-
- ath5k_hw_reg_write(ah,
- AR5K_PHY_NF_SVAL(ee->ee_noise_floor_thr[ee_mode]),
- AR5K_PHY_NFTHRES);
-
- AR5K_REG_MASKED_BITS(ah, AR5K_PHY_SETTLING,
- (ee->ee_switch_settling[ee_mode] << 7) & 0x3f80,
- 0xffffc07f);
- AR5K_REG_MASKED_BITS(ah, AR5K_PHY_GAIN,
- (ee->ee_ant_tx_rx[ee_mode] << 12) & 0x3f000,
- 0xfffc0fff);
- AR5K_REG_MASKED_BITS(ah, AR5K_PHY_DESIRED_SIZE,
- (ee->ee_adc_desired_size[ee_mode] & 0x00ff) |
- ((ee->ee_pga_desired_size[ee_mode] << 8) & 0xff00),
- 0xffff0000);
-
- ath5k_hw_reg_write(ah,
- (ee->ee_tx_end2xpa_disable[ee_mode] << 24) |
- (ee->ee_tx_end2xpa_disable[ee_mode] << 16) |
- (ee->ee_tx_frm2xpa_enable[ee_mode] << 8) |
- (ee->ee_tx_frm2xpa_enable[ee_mode]), AR5K_PHY_RF_CTL4);
-
- AR5K_REG_MASKED_BITS(ah, AR5K_PHY_RF_CTL3,
- ee->ee_tx_end2xlna_enable[ee_mode] << 8, 0xffff00ff);
- AR5K_REG_MASKED_BITS(ah, AR5K_PHY_NF,
- (ee->ee_thr_62[ee_mode] << 12) & 0x7f000, 0xfff80fff);
- AR5K_REG_MASKED_BITS(ah, AR5K_PHY_OFDM_SELFCORR, 4, 0xffffff01);
-
- AR5K_REG_ENABLE_BITS(ah, AR5K_PHY_IQ,
- AR5K_PHY_IQ_CORR_ENABLE |
- (ee->ee_i_cal[ee_mode] << AR5K_PHY_IQ_CORR_Q_I_COFF_S) |
- ee->ee_q_cal[ee_mode]);
-
- if (ah->ah_ee_version >= AR5K_EEPROM_VERSION_4_1)
- AR5K_REG_WRITE_BITS(ah, AR5K_PHY_GAIN_2GHZ,
- AR5K_PHY_GAIN_2GHZ_MARGIN_TXRX,
- ee->ee_margin_tx_rx[ee_mode]);
-
- } else {
- mdelay(1);
- /* Disable phy and wait */
- ath5k_hw_reg_write(ah, AR5K_PHY_ACT_DISABLE, AR5K_PHY_ACT);
- mdelay(1);
- }
-
- /*
- * Restore saved values
- */
- /*DCU/Antenna selection not available on 5210*/
- if (ah->ah_version != AR5K_AR5210) {
- ath5k_hw_reg_write(ah, s_seq, AR5K_QUEUE_DFS_SEQNUM(0));
- ath5k_hw_reg_write(ah, s_ant, AR5K_DEFAULT_ANTENNA);
- }
- AR5K_REG_ENABLE_BITS(ah, AR5K_PCICFG, s_led[0]);
- ath5k_hw_reg_write(ah, s_led[1], AR5K_GPIOCR);
- ath5k_hw_reg_write(ah, s_led[2], AR5K_GPIODO);
-
- /*
- * Misc
- */
- /* XXX: add ah->aid once mac80211 gives this to us */
- ath5k_hw_set_associd(ah, ah->ah_bssid, 0);
-
- ath5k_hw_set_opmode(ah);
- /*PISR/SISR Not available on 5210*/
- if (ah->ah_version != AR5K_AR5210) {
- ath5k_hw_reg_write(ah, 0xffffffff, AR5K_PISR);
- /* If we later allow tuning for this, store into sc structure */
- data = AR5K_TUNE_RSSI_THRES |
- AR5K_TUNE_BMISS_THRES << AR5K_RSSI_THR_BMISS_S;
- ath5k_hw_reg_write(ah, data, AR5K_RSSI_THR);
- }
-
- /*
- * Set Rx/Tx DMA Configuration
- *
- * Set maximum DMA size (512) except for PCI-E cards since
- * it causes rx overruns and tx errors (tested on 5424 but since
- * rx overruns also occur on 5416/5418 with madwifi we set 128
- * for all PCI-E cards to be safe).
- *
- * In dumps this is 128 for allchips.
- *
- * XXX: need to check 5210 for this
- * TODO: Check out tx triger level, it's always 64 on dumps but I
- * guess we can tweak it and see how it goes ;-)
- */
- dma_size = (pdev->is_pcie) ? AR5K_DMASIZE_128B : AR5K_DMASIZE_512B;
- if (ah->ah_version != AR5K_AR5210) {
- AR5K_REG_WRITE_BITS(ah, AR5K_TXCFG,
- AR5K_TXCFG_SDMAMR, dma_size);
- AR5K_REG_WRITE_BITS(ah, AR5K_RXCFG,
- AR5K_RXCFG_SDMAMW, dma_size);
- }
-
- /*
- * Enable the PHY and wait until completion
- */
- ath5k_hw_reg_write(ah, AR5K_PHY_ACT_ENABLE, AR5K_PHY_ACT);
-
- /*
- * On 5211+ read activation -> rx delay
- * and use it.
- */
- if (ah->ah_version != AR5K_AR5210) {
- data = ath5k_hw_reg_read(ah, AR5K_PHY_RX_DELAY) &
- AR5K_PHY_RX_DELAY_M;
- data = (channel->hw_value & CHANNEL_CCK) ?
- ((data << 2) / 22) : (data / 10);
-
- udelay(100 + (2 * data));
- data = 0;
- } else {
- mdelay(1);
- }
-
- /*
- * Perform ADC test (?)
- */
- data = ath5k_hw_reg_read(ah, AR5K_PHY_TST1);
- ath5k_hw_reg_write(ah, AR5K_PHY_TST1_TXHOLD, AR5K_PHY_TST1);
- for (i = 0; i <= 20; i++) {
- if (!(ath5k_hw_reg_read(ah, AR5K_PHY_ADC_TEST) & 0x10))
- break;
- udelay(200);
- }
- ath5k_hw_reg_write(ah, data, AR5K_PHY_TST1);
- data = 0;
-
- /*
- * Start automatic gain calibration
- *
- * During AGC calibration RX path is re-routed to
- * a signal detector so we don't receive anything.
- *
- * This method is used to calibrate some static offsets
- * used together with on-the fly I/Q calibration (the
- * one performed via ath5k_hw_phy_calibrate), that doesn't
- * interrupt rx path.
- *
- * If we are in a noisy environment AGC calibration may time
- * out.
- */
- AR5K_REG_ENABLE_BITS(ah, AR5K_PHY_AGCCTL,
- AR5K_PHY_AGCCTL_CAL);
-
- /* At the same time start I/Q calibration for QAM constellation
- * -no need for CCK- */
- ah->ah_calibration = false;
- if (!(mode == AR5K_MODE_11B)) {
- ah->ah_calibration = true;
- AR5K_REG_WRITE_BITS(ah, AR5K_PHY_IQ,
- AR5K_PHY_IQ_CAL_NUM_LOG_MAX, 15);
- AR5K_REG_ENABLE_BITS(ah, AR5K_PHY_IQ,
- AR5K_PHY_IQ_RUN);
- }
-
- /* Wait for gain calibration to finish (we check for I/Q calibration
- * during ath5k_phy_calibrate) */
- if (ath5k_hw_register_timeout(ah, AR5K_PHY_AGCCTL,
- AR5K_PHY_AGCCTL_CAL, 0, false)) {
- ATH5K_ERR(ah->ah_sc, "gain calibration timeout (%uMHz)\n",
- channel->center_freq);
- return -EAGAIN;
- }
-
- /*
- * Start noise floor calibration
- *
- * If we run NF calibration before AGC, it always times out.
- * Binary HAL starts NF and AGC calibration at the same time
- * and only waits for AGC to finish. I believe that's wrong because
- * during NF calibration, rx path is also routed to a detector, so if
- * it doesn't finish we won't have RX.
- *
- * XXX: Find an interval that's OK for all cards...
- */
- ret = ath5k_hw_noise_floor_calibration(ah, channel->center_freq);
- if (ret)
- return ret;
-
- /*
- * Reset queues and start beacon timers at the end of the reset routine
- */
- for (i = 0; i < ah->ah_capabilities.cap_queues.q_tx_num; i++) {
- /*No QCU on 5210*/
- if (ah->ah_version != AR5K_AR5210)
- AR5K_REG_WRITE_Q(ah, AR5K_QUEUE_QCUMASK(i), i);
-
- ret = ath5k_hw_reset_tx_queue(ah, i);
- if (ret) {
- ATH5K_ERR(ah->ah_sc,
- "failed to reset TX queue #%d\n", i);
- return ret;
- }
- }
-
- /* Pre-enable interrupts on 5211/5212*/
- if (ah->ah_version != AR5K_AR5210)
- ath5k_hw_set_intr(ah, AR5K_INT_RX | AR5K_INT_TX |
- AR5K_INT_FATAL);
-
- /*
- * Set RF kill flags if supported by the device (read from the EEPROM)
- * Disable gpio_intr for now since it results system hang.
- * TODO: Handle this in ath5k_intr
- */
-#if 0
- if (AR5K_EEPROM_HDR_RFKILL(ah->ah_capabilities.cap_eeprom.ee_header)) {
- ath5k_hw_set_gpio_input(ah, 0);
- ah->ah_gpio[0] = ath5k_hw_get_gpio(ah, 0);
- if (ah->ah_gpio[0] == 0)
- ath5k_hw_set_gpio_intr(ah, 0, 1);
- else
- ath5k_hw_set_gpio_intr(ah, 0, 0);
- }
-#endif
-
- /*
- * Set the 32MHz reference clock on 5212 phy clock sleep register
- *
- * TODO: Find out how to switch to external 32Khz clock to save power
- */
- if (ah->ah_version == AR5K_AR5212) {
- ath5k_hw_reg_write(ah, AR5K_PHY_SCR_32MHZ, AR5K_PHY_SCR);
- ath5k_hw_reg_write(ah, AR5K_PHY_SLMT_32MHZ, AR5K_PHY_SLMT);
- ath5k_hw_reg_write(ah, AR5K_PHY_SCAL_32MHZ, AR5K_PHY_SCAL);
- ath5k_hw_reg_write(ah, AR5K_PHY_SCLOCK_32MHZ, AR5K_PHY_SCLOCK);
- ath5k_hw_reg_write(ah, AR5K_PHY_SDELAY_32MHZ, AR5K_PHY_SDELAY);
- ath5k_hw_reg_write(ah, ah->ah_phy_spending, AR5K_PHY_SPENDING);
-
- data = ath5k_hw_reg_read(ah, AR5K_USEC_5211) & 0xffffc07f ;
- data |= (ah->ah_phy_spending == AR5K_PHY_SPENDING_18) ?
- 0x00000f80 : 0x00001380 ;
- ath5k_hw_reg_write(ah, data, AR5K_USEC_5211);
- data = 0;
- }
-
- if (ah->ah_version == AR5K_AR5212) {
- ath5k_hw_reg_write(ah, 0x000100aa, 0x8118);
- ath5k_hw_reg_write(ah, 0x00003210, 0x811c);
- ath5k_hw_reg_write(ah, 0x00000052, 0x8108);
- if (ah->ah_mac_srev >= AR5K_SREV_VER_AR2413)
- ath5k_hw_reg_write(ah, 0x00000004, 0x8120);
- }
-
- /*
- * Disable beacons and reset the register
- */
- AR5K_REG_DISABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE |
- AR5K_BEACON_RESET_TSF);
-
- return 0;
-}
-
-/*
- * Reset chipset
- */
-static int ath5k_hw_nic_reset(struct ath5k_hw *ah, u32 val)
-{
- int ret;
- u32 mask = val ? val : ~0U;
-
- ATH5K_TRACE(ah->ah_sc);
-
- /* Read-and-clear RX Descriptor Pointer*/
- ath5k_hw_reg_read(ah, AR5K_RXDP);
-
- /*
- * Reset the device and wait until success
- */
- ath5k_hw_reg_write(ah, val, AR5K_RESET_CTL);
-
- /* Wait at least 128 PCI clocks */
- udelay(15);
-
- if (ah->ah_version == AR5K_AR5210) {
- val &= AR5K_RESET_CTL_CHIP;
- mask &= AR5K_RESET_CTL_CHIP;
- } else {
- val &= AR5K_RESET_CTL_PCU | AR5K_RESET_CTL_BASEBAND;
- mask &= AR5K_RESET_CTL_PCU | AR5K_RESET_CTL_BASEBAND;
- }
-
- ret = ath5k_hw_register_timeout(ah, AR5K_RESET_CTL, mask, val, false);
-
- /*
- * Reset configuration register (for hw byte-swap). Note that this
- * is only set for big endian. We do the necessary magic in
- * AR5K_INIT_CFG.
- */
- if ((val & AR5K_RESET_CTL_PCU) == 0)
- ath5k_hw_reg_write(ah, AR5K_INIT_CFG, AR5K_CFG);
-
- return ret;
-}
-
-/*
- * Power management functions
- */
-
-/*
- * Sleep control
- */
-int ath5k_hw_set_power(struct ath5k_hw *ah, enum ath5k_power_mode mode,
- bool set_chip, u16 sleep_duration)
-{
- unsigned int i;
- u32 staid, data;
-
- ATH5K_TRACE(ah->ah_sc);
- staid = ath5k_hw_reg_read(ah, AR5K_STA_ID1);
-
- switch (mode) {
- case AR5K_PM_AUTO:
- staid &= ~AR5K_STA_ID1_DEFAULT_ANTENNA;
- /* fallthrough */
- case AR5K_PM_NETWORK_SLEEP:
- if (set_chip)
- ath5k_hw_reg_write(ah,
- AR5K_SLEEP_CTL_SLE_ALLOW |
- sleep_duration,
- AR5K_SLEEP_CTL);
-
- staid |= AR5K_STA_ID1_PWR_SV;
- break;
-
- case AR5K_PM_FULL_SLEEP:
- if (set_chip)
- ath5k_hw_reg_write(ah, AR5K_SLEEP_CTL_SLE_SLP,
- AR5K_SLEEP_CTL);
-
- staid |= AR5K_STA_ID1_PWR_SV;
- break;
-
- case AR5K_PM_AWAKE:
-
- staid &= ~AR5K_STA_ID1_PWR_SV;
-
- if (!set_chip)
- goto commit;
-
- /* Preserve sleep duration */
- data = ath5k_hw_reg_read(ah, AR5K_SLEEP_CTL);
- if( data & 0xffc00000 ){
- data = 0;
- } else {
- data = data & 0xfffcffff;
- }
-
- ath5k_hw_reg_write(ah, data, AR5K_SLEEP_CTL);
- udelay(15);
-
- for (i = 50; i > 0; i--) {
- /* Check if the chip did wake up */
- if ((ath5k_hw_reg_read(ah, AR5K_PCICFG) &
- AR5K_PCICFG_SPWR_DN) == 0)
- break;
-
- /* Wait a bit and retry */
- udelay(200);
- ath5k_hw_reg_write(ah, data, AR5K_SLEEP_CTL);
- }
-
- /* Fail if the chip didn't wake up */
- if (i <= 0)
- return -EIO;
-
- break;
-
- default:
- return -EINVAL;
- }
-
-commit:
- ah->ah_power_mode = mode;
- ath5k_hw_reg_write(ah, staid, AR5K_STA_ID1);
-
- return 0;
-}
-
-/***********************\
- DMA Related Functions
-\***********************/
-
-/*
- * Receive functions
- */
-
-/*
- * Start DMA receive
- */
-void ath5k_hw_start_rx(struct ath5k_hw *ah)
-{
- ATH5K_TRACE(ah->ah_sc);
- ath5k_hw_reg_write(ah, AR5K_CR_RXE, AR5K_CR);
- ath5k_hw_reg_read(ah, AR5K_CR);
-}
-
-/*
- * Stop DMA receive
- */
-int ath5k_hw_stop_rx_dma(struct ath5k_hw *ah)
-{
- unsigned int i;
-
- ATH5K_TRACE(ah->ah_sc);
- ath5k_hw_reg_write(ah, AR5K_CR_RXD, AR5K_CR);
-
- /*
- * It may take some time to disable the DMA receive unit
- */
- for (i = 2000; i > 0 &&
- (ath5k_hw_reg_read(ah, AR5K_CR) & AR5K_CR_RXE) != 0;
- i--)
- udelay(10);
-
- return i ? 0 : -EBUSY;
-}
-
-/*
- * Get the address of the RX Descriptor
- */
-u32 ath5k_hw_get_rx_buf(struct ath5k_hw *ah)
-{
- return ath5k_hw_reg_read(ah, AR5K_RXDP);
-}
-
-/*
- * Set the address of the RX Descriptor
- */
-void ath5k_hw_put_rx_buf(struct ath5k_hw *ah, u32 phys_addr)
-{
- ATH5K_TRACE(ah->ah_sc);
-
- /*TODO:Shouldn't we check if RX is enabled first ?*/
- ath5k_hw_reg_write(ah, phys_addr, AR5K_RXDP);
-}
-
-/*
- * Transmit functions
- */
-
-/*
- * Start DMA transmit for a specific queue
- * (see also QCU/DCU functions)
- */
-int ath5k_hw_tx_start(struct ath5k_hw *ah, unsigned int queue)
-{
- u32 tx_queue;
-
- ATH5K_TRACE(ah->ah_sc);
- AR5K_ASSERT_ENTRY(queue, ah->ah_capabilities.cap_queues.q_tx_num);
-
- /* Return if queue is declared inactive */
- if (ah->ah_txq[queue].tqi_type == AR5K_TX_QUEUE_INACTIVE)
- return -EIO;
-
- if (ah->ah_version == AR5K_AR5210) {
- tx_queue = ath5k_hw_reg_read(ah, AR5K_CR);
-
- /*
- * Set the queue by type on 5210
- */
- switch (ah->ah_txq[queue].tqi_type) {
- case AR5K_TX_QUEUE_DATA:
- tx_queue |= AR5K_CR_TXE0 & ~AR5K_CR_TXD0;
- break;
- case AR5K_TX_QUEUE_BEACON:
- tx_queue |= AR5K_CR_TXE1 & ~AR5K_CR_TXD1;
- ath5k_hw_reg_write(ah, AR5K_BCR_TQ1V | AR5K_BCR_BDMAE,
- AR5K_BSR);
- break;
- case AR5K_TX_QUEUE_CAB:
- tx_queue |= AR5K_CR_TXE1 & ~AR5K_CR_TXD1;
- ath5k_hw_reg_write(ah, AR5K_BCR_TQ1FV | AR5K_BCR_TQ1V |
- AR5K_BCR_BDMAE, AR5K_BSR);
- break;
- default:
- return -EINVAL;
- }
- /* Start queue */
- ath5k_hw_reg_write(ah, tx_queue, AR5K_CR);
- ath5k_hw_reg_read(ah, AR5K_CR);
- } else {
- /* Return if queue is disabled */
- if (AR5K_REG_READ_Q(ah, AR5K_QCU_TXD, queue))
- return -EIO;
-
- /* Start queue */
- AR5K_REG_WRITE_Q(ah, AR5K_QCU_TXE, queue);
- }
-
- return 0;
-}
-
-/*
- * Stop DMA transmit for a specific queue
- * (see also QCU/DCU functions)
- */
-int ath5k_hw_stop_tx_dma(struct ath5k_hw *ah, unsigned int queue)
-{
- unsigned int i = 100;
- u32 tx_queue, pending;
-
- ATH5K_TRACE(ah->ah_sc);
- AR5K_ASSERT_ENTRY(queue, ah->ah_capabilities.cap_queues.q_tx_num);
-
- /* Return if queue is declared inactive */
- if (ah->ah_txq[queue].tqi_type == AR5K_TX_QUEUE_INACTIVE)
- return -EIO;
-
- if (ah->ah_version == AR5K_AR5210) {
- tx_queue = ath5k_hw_reg_read(ah, AR5K_CR);
-
- /*
- * Set by queue type
- */
- switch (ah->ah_txq[queue].tqi_type) {
- case AR5K_TX_QUEUE_DATA:
- tx_queue |= AR5K_CR_TXD0 & ~AR5K_CR_TXE0;
- break;
- case AR5K_TX_QUEUE_BEACON:
- case AR5K_TX_QUEUE_CAB:
- /* XXX Fix me... */
- tx_queue |= AR5K_CR_TXD1 & ~AR5K_CR_TXD1;
- ath5k_hw_reg_write(ah, 0, AR5K_BSR);
- break;
- default:
- return -EINVAL;
- }
-
- /* Stop queue */
- ath5k_hw_reg_write(ah, tx_queue, AR5K_CR);
- ath5k_hw_reg_read(ah, AR5K_CR);
- } else {
- /*
- * Schedule TX disable and wait until queue is empty
- */
- AR5K_REG_WRITE_Q(ah, AR5K_QCU_TXD, queue);
-
- /*Check for pending frames*/
- do {
- pending = ath5k_hw_reg_read(ah,
- AR5K_QUEUE_STATUS(queue)) &
- AR5K_QCU_STS_FRMPENDCNT;
- udelay(100);
- } while (--i && pending);
-
- /* Clear register */
- ath5k_hw_reg_write(ah, 0, AR5K_QCU_TXD);
- if (pending)
- return -EBUSY;
- }
-
- /* TODO: Check for success else return error */
- return 0;
-}
-
-/*
- * Get the address of the TX Descriptor for a specific queue
- * (see also QCU/DCU functions)
- */
-u32 ath5k_hw_get_tx_buf(struct ath5k_hw *ah, unsigned int queue)
-{
- u16 tx_reg;
-
- ATH5K_TRACE(ah->ah_sc);
- AR5K_ASSERT_ENTRY(queue, ah->ah_capabilities.cap_queues.q_tx_num);
-
- /*
- * Get the transmit queue descriptor pointer from the selected queue
- */
- /*5210 doesn't have QCU*/
- if (ah->ah_version == AR5K_AR5210) {
- switch (ah->ah_txq[queue].tqi_type) {
- case AR5K_TX_QUEUE_DATA:
- tx_reg = AR5K_NOQCU_TXDP0;
- break;
- case AR5K_TX_QUEUE_BEACON:
- case AR5K_TX_QUEUE_CAB:
- tx_reg = AR5K_NOQCU_TXDP1;
- break;
- default:
- return 0xffffffff;
- }
- } else {
- tx_reg = AR5K_QUEUE_TXDP(queue);
- }
-
- return ath5k_hw_reg_read(ah, tx_reg);
-}
-
-/*
- * Set the address of the TX Descriptor for a specific queue
- * (see also QCU/DCU functions)
- */
-int ath5k_hw_put_tx_buf(struct ath5k_hw *ah, unsigned int queue, u32 phys_addr)
-{
- u16 tx_reg;
-
- ATH5K_TRACE(ah->ah_sc);
- AR5K_ASSERT_ENTRY(queue, ah->ah_capabilities.cap_queues.q_tx_num);
-
- /*
- * Set the transmit queue descriptor pointer register by type
- * on 5210
- */
- if (ah->ah_version == AR5K_AR5210) {
- switch (ah->ah_txq[queue].tqi_type) {
- case AR5K_TX_QUEUE_DATA:
- tx_reg = AR5K_NOQCU_TXDP0;
- break;
- case AR5K_TX_QUEUE_BEACON:
- case AR5K_TX_QUEUE_CAB:
- tx_reg = AR5K_NOQCU_TXDP1;
- break;
- default:
- return -EINVAL;
- }
- } else {
- /*
- * Set the transmit queue descriptor pointer for
- * the selected queue on QCU for 5211+
- * (this won't work if the queue is still active)
- */
- if (AR5K_REG_READ_Q(ah, AR5K_QCU_TXE, queue))
- return -EIO;
-
- tx_reg = AR5K_QUEUE_TXDP(queue);
- }
-
- /* Set descriptor pointer */
- ath5k_hw_reg_write(ah, phys_addr, tx_reg);
-
- return 0;
-}
-
-/*
- * Update tx trigger level
- */
-int ath5k_hw_update_tx_triglevel(struct ath5k_hw *ah, bool increase)
-{
- u32 trigger_level, imr;
- int ret = -EIO;
-
- ATH5K_TRACE(ah->ah_sc);
-
- /*
- * Disable interrupts by setting the mask
- */
- imr = ath5k_hw_set_intr(ah, ah->ah_imr & ~AR5K_INT_GLOBAL);
-
- /*TODO: Boundary check on trigger_level*/
- trigger_level = AR5K_REG_MS(ath5k_hw_reg_read(ah, AR5K_TXCFG),
- AR5K_TXCFG_TXFULL);
-
- if (!increase) {
- if (--trigger_level < AR5K_TUNE_MIN_TX_FIFO_THRES)
- goto done;
- } else
- trigger_level +=
- ((AR5K_TUNE_MAX_TX_FIFO_THRES - trigger_level) / 2);
-
- /*
- * Update trigger level on success
- */
- if (ah->ah_version == AR5K_AR5210)
- ath5k_hw_reg_write(ah, trigger_level, AR5K_TRIG_LVL);
- else
- AR5K_REG_WRITE_BITS(ah, AR5K_TXCFG,
- AR5K_TXCFG_TXFULL, trigger_level);
-
- ret = 0;
-
-done:
- /*
- * Restore interrupt mask
- */
- ath5k_hw_set_intr(ah, imr);
-
- return ret;
-}
-
-/*
- * Interrupt handling
- */
-
-/*
- * Check if we have pending interrupts
- */
-bool ath5k_hw_is_intr_pending(struct ath5k_hw *ah)
-{
- ATH5K_TRACE(ah->ah_sc);
- return ath5k_hw_reg_read(ah, AR5K_INTPEND);
-}
-
-/*
- * Get interrupt mask (ISR)
- */
-int ath5k_hw_get_isr(struct ath5k_hw *ah, enum ath5k_int *interrupt_mask)
-{
- u32 data;
-
- ATH5K_TRACE(ah->ah_sc);
-
- /*
- * Read interrupt status from the Interrupt Status register
- * on 5210
- */
- if (ah->ah_version == AR5K_AR5210) {
- data = ath5k_hw_reg_read(ah, AR5K_ISR);
- if (unlikely(data == AR5K_INT_NOCARD)) {
- *interrupt_mask = data;
- return -ENODEV;
- }
- } else {
- /*
- * Read interrupt status from the Read-And-Clear shadow register
- * Note: PISR/SISR Not available on 5210
- */
- data = ath5k_hw_reg_read(ah, AR5K_RAC_PISR);
- }
-
- /*
- * Get abstract interrupt mask (driver-compatible)
- */
- *interrupt_mask = (data & AR5K_INT_COMMON) & ah->ah_imr;
-
- if (unlikely(data == AR5K_INT_NOCARD))
- return -ENODEV;
-
- if (data & (AR5K_ISR_RXOK | AR5K_ISR_RXERR))
- *interrupt_mask |= AR5K_INT_RX;
-
- if (data & (AR5K_ISR_TXOK | AR5K_ISR_TXERR
- | AR5K_ISR_TXDESC | AR5K_ISR_TXEOL))
- *interrupt_mask |= AR5K_INT_TX;
-
- if (ah->ah_version != AR5K_AR5210) {
- /*HIU = Host Interface Unit (PCI etc)*/
- if (unlikely(data & (AR5K_ISR_HIUERR)))
- *interrupt_mask |= AR5K_INT_FATAL;
-
- /*Beacon Not Ready*/
- if (unlikely(data & (AR5K_ISR_BNR)))
- *interrupt_mask |= AR5K_INT_BNR;
- }
-
- /*
- * XXX: BMISS interrupts may occur after association.
- * I found this on 5210 code but it needs testing. If this is
- * true we should disable them before assoc and re-enable them
- * after a successfull assoc + some jiffies.
- */
-#if 0
- interrupt_mask &= ~AR5K_INT_BMISS;
-#endif
-
- /*
- * In case we didn't handle anything,
- * print the register value.
- */
- if (unlikely(*interrupt_mask == 0 && net_ratelimit()))
- ATH5K_PRINTF("0x%08x\n", data);
-
- return 0;
-}
-
-/*
- * Set interrupt mask
- */
-enum ath5k_int ath5k_hw_set_intr(struct ath5k_hw *ah, enum ath5k_int new_mask)
-{
- enum ath5k_int old_mask, int_mask;
-
- /*
- * Disable card interrupts to prevent any race conditions
- * (they will be re-enabled afterwards).
- */
- ath5k_hw_reg_write(ah, AR5K_IER_DISABLE, AR5K_IER);
- ath5k_hw_reg_read(ah, AR5K_IER);
-
- old_mask = ah->ah_imr;
-
- /*
- * Add additional, chipset-dependent interrupt mask flags
- * and write them to the IMR (interrupt mask register).
- */
- int_mask = new_mask & AR5K_INT_COMMON;
-
- if (new_mask & AR5K_INT_RX)
- int_mask |= AR5K_IMR_RXOK | AR5K_IMR_RXERR | AR5K_IMR_RXORN |
- AR5K_IMR_RXDESC;
-
- if (new_mask & AR5K_INT_TX)
- int_mask |= AR5K_IMR_TXOK | AR5K_IMR_TXERR | AR5K_IMR_TXDESC |
- AR5K_IMR_TXURN;
-
- if (ah->ah_version != AR5K_AR5210) {
- if (new_mask & AR5K_INT_FATAL) {
- int_mask |= AR5K_IMR_HIUERR;
- AR5K_REG_ENABLE_BITS(ah, AR5K_SIMR2, AR5K_SIMR2_MCABT |
- AR5K_SIMR2_SSERR | AR5K_SIMR2_DPERR);
- }
- }
-
- ath5k_hw_reg_write(ah, int_mask, AR5K_PIMR);
-
- /* Store new interrupt mask */
- ah->ah_imr = new_mask;
-
- /* ..re-enable interrupts */
- ath5k_hw_reg_write(ah, AR5K_IER_ENABLE, AR5K_IER);
- ath5k_hw_reg_read(ah, AR5K_IER);
-
- return old_mask;
-}
-
-
-/*************************\
- EEPROM access functions
-\*************************/
-
-/*
- * Read from eeprom
- */
-static int ath5k_hw_eeprom_read(struct ath5k_hw *ah, u32 offset, u16 *data)
-{
- u32 status, timeout;
-
- ATH5K_TRACE(ah->ah_sc);
- /*
- * Initialize EEPROM access
- */
- if (ah->ah_version == AR5K_AR5210) {
- AR5K_REG_ENABLE_BITS(ah, AR5K_PCICFG, AR5K_PCICFG_EEAE);
- (void)ath5k_hw_reg_read(ah, AR5K_EEPROM_BASE + (4 * offset));
- } else {
- ath5k_hw_reg_write(ah, offset, AR5K_EEPROM_BASE);
- AR5K_REG_ENABLE_BITS(ah, AR5K_EEPROM_CMD,
- AR5K_EEPROM_CMD_READ);
- }
-
- for (timeout = AR5K_TUNE_REGISTER_TIMEOUT; timeout > 0; timeout--) {
- status = ath5k_hw_reg_read(ah, AR5K_EEPROM_STATUS);
- if (status & AR5K_EEPROM_STAT_RDDONE) {
- if (status & AR5K_EEPROM_STAT_RDERR)
- return -EIO;
- *data = (u16)(ath5k_hw_reg_read(ah, AR5K_EEPROM_DATA) &
- 0xffff);
- return 0;
- }
- udelay(15);
- }
-
- return -ETIMEDOUT;
-}
-
-/*
- * Write to eeprom - currently disabled, use at your own risk
- */
-#if 0
-static int ath5k_hw_eeprom_write(struct ath5k_hw *ah, u32 offset, u16 data)
-{
-
- u32 status, timeout;
-
- ATH5K_TRACE(ah->ah_sc);
-
- /*
- * Initialize eeprom access
- */
-
- if (ah->ah_version == AR5K_AR5210) {
- AR5K_REG_ENABLE_BITS(ah, AR5K_PCICFG, AR5K_PCICFG_EEAE);
- } else {
- AR5K_REG_ENABLE_BITS(ah, AR5K_EEPROM_CMD,
- AR5K_EEPROM_CMD_RESET);
- }
-
- /*
- * Write data to data register
- */
-
- if (ah->ah_version == AR5K_AR5210) {
- ath5k_hw_reg_write(ah, data, AR5K_EEPROM_BASE + (4 * offset));
- } else {
- ath5k_hw_reg_write(ah, offset, AR5K_EEPROM_BASE);
- ath5k_hw_reg_write(ah, data, AR5K_EEPROM_DATA);
- AR5K_REG_ENABLE_BITS(ah, AR5K_EEPROM_CMD,
- AR5K_EEPROM_CMD_WRITE);
- }
-
- /*
- * Check status
- */
-
- for (timeout = AR5K_TUNE_REGISTER_TIMEOUT; timeout > 0; timeout--) {
- status = ath5k_hw_reg_read(ah, AR5K_EEPROM_STATUS);
- if (status & AR5K_EEPROM_STAT_WRDONE) {
- if (status & AR5K_EEPROM_STAT_WRERR)
- return EIO;
- return 0;
- }
- udelay(15);
- }
-
- ATH5K_ERR(ah->ah_sc, "EEPROM Write is disabled!");
- return -EIO;
-}
-#endif
-
-/*
- * Translate binary channel representation in EEPROM to frequency
- */
-static u16 ath5k_eeprom_bin2freq(struct ath5k_hw *ah, u16 bin, unsigned int mode)
-{
- u16 val;
-
- if (bin == AR5K_EEPROM_CHANNEL_DIS)
- return bin;
-
- if (mode == AR5K_EEPROM_MODE_11A) {
- if (ah->ah_ee_version > AR5K_EEPROM_VERSION_3_2)
- val = (5 * bin) + 4800;
- else
- val = bin > 62 ? (10 * 62) + (5 * (bin - 62)) + 5100 :
- (bin * 10) + 5100;
- } else {
- if (ah->ah_ee_version > AR5K_EEPROM_VERSION_3_2)
- val = bin + 2300;
- else
- val = bin + 2400;
- }
-
- return val;
-}
-
-/*
- * Read antenna infos from eeprom
- */
-static int ath5k_eeprom_read_ants(struct ath5k_hw *ah, u32 *offset,
- unsigned int mode)
-{
- struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom;
- u32 o = *offset;
- u16 val;
- int ret, i = 0;
-
- AR5K_EEPROM_READ(o++, val);
- ee->ee_switch_settling[mode] = (val >> 8) & 0x7f;
- ee->ee_ant_tx_rx[mode] = (val >> 2) & 0x3f;
- ee->ee_ant_control[mode][i] = (val << 4) & 0x3f;
-
- AR5K_EEPROM_READ(o++, val);
- ee->ee_ant_control[mode][i++] |= (val >> 12) & 0xf;
- ee->ee_ant_control[mode][i++] = (val >> 6) & 0x3f;
- ee->ee_ant_control[mode][i++] = val & 0x3f;
-
- AR5K_EEPROM_READ(o++, val);
- ee->ee_ant_control[mode][i++] = (val >> 10) & 0x3f;
- ee->ee_ant_control[mode][i++] = (val >> 4) & 0x3f;
- ee->ee_ant_control[mode][i] = (val << 2) & 0x3f;
-
- AR5K_EEPROM_READ(o++, val);
- ee->ee_ant_control[mode][i++] |= (val >> 14) & 0x3;
- ee->ee_ant_control[mode][i++] = (val >> 8) & 0x3f;
- ee->ee_ant_control[mode][i++] = (val >> 2) & 0x3f;
- ee->ee_ant_control[mode][i] = (val << 4) & 0x3f;
-
- AR5K_EEPROM_READ(o++, val);
- ee->ee_ant_control[mode][i++] |= (val >> 12) & 0xf;
- ee->ee_ant_control[mode][i++] = (val >> 6) & 0x3f;
- ee->ee_ant_control[mode][i++] = val & 0x3f;
-
- /* Get antenna modes */
- ah->ah_antenna[mode][0] =
- (ee->ee_ant_control[mode][0] << 4) | 0x1;
- ah->ah_antenna[mode][AR5K_ANT_FIXED_A] =
- ee->ee_ant_control[mode][1] |
- (ee->ee_ant_control[mode][2] << 6) |
- (ee->ee_ant_control[mode][3] << 12) |
- (ee->ee_ant_control[mode][4] << 18) |
- (ee->ee_ant_control[mode][5] << 24);
- ah->ah_antenna[mode][AR5K_ANT_FIXED_B] =
- ee->ee_ant_control[mode][6] |
- (ee->ee_ant_control[mode][7] << 6) |
- (ee->ee_ant_control[mode][8] << 12) |
- (ee->ee_ant_control[mode][9] << 18) |
- (ee->ee_ant_control[mode][10] << 24);
-
- /* return new offset */
- *offset = o;
-
- return 0;
-}
-
-/*
- * Read supported modes from eeprom
- */
-static int ath5k_eeprom_read_modes(struct ath5k_hw *ah, u32 *offset,
- unsigned int mode)
-{
- struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom;
- u32 o = *offset;
- u16 val;
- int ret;
-
- AR5K_EEPROM_READ(o++, val);
- ee->ee_tx_end2xlna_enable[mode] = (val >> 8) & 0xff;
- ee->ee_thr_62[mode] = val & 0xff;
-
- if (ah->ah_ee_version <= AR5K_EEPROM_VERSION_3_2)
- ee->ee_thr_62[mode] = mode == AR5K_EEPROM_MODE_11A ? 15 : 28;
-
- AR5K_EEPROM_READ(o++, val);
- ee->ee_tx_end2xpa_disable[mode] = (val >> 8) & 0xff;
- ee->ee_tx_frm2xpa_enable[mode] = val & 0xff;
-
- AR5K_EEPROM_READ(o++, val);
- ee->ee_pga_desired_size[mode] = (val >> 8) & 0xff;
-
- if ((val & 0xff) & 0x80)
- ee->ee_noise_floor_thr[mode] = -((((val & 0xff) ^ 0xff)) + 1);
- else
- ee->ee_noise_floor_thr[mode] = val & 0xff;
-
- if (ah->ah_ee_version <= AR5K_EEPROM_VERSION_3_2)
- ee->ee_noise_floor_thr[mode] =
- mode == AR5K_EEPROM_MODE_11A ? -54 : -1;
-
- AR5K_EEPROM_READ(o++, val);
- ee->ee_xlna_gain[mode] = (val >> 5) & 0xff;
- ee->ee_x_gain[mode] = (val >> 1) & 0xf;
- ee->ee_xpd[mode] = val & 0x1;
-
- if (ah->ah_ee_version >= AR5K_EEPROM_VERSION_4_0)
- ee->ee_fixed_bias[mode] = (val >> 13) & 0x1;
-
- if (ah->ah_ee_version >= AR5K_EEPROM_VERSION_3_3) {
- AR5K_EEPROM_READ(o++, val);
- ee->ee_false_detect[mode] = (val >> 6) & 0x7f;
-
- if (mode == AR5K_EEPROM_MODE_11A)
- ee->ee_xr_power[mode] = val & 0x3f;
- else {
- ee->ee_ob[mode][0] = val & 0x7;
- ee->ee_db[mode][0] = (val >> 3) & 0x7;
- }
- }
-
- if (ah->ah_ee_version < AR5K_EEPROM_VERSION_3_4) {
- ee->ee_i_gain[mode] = AR5K_EEPROM_I_GAIN;
- ee->ee_cck_ofdm_power_delta = AR5K_EEPROM_CCK_OFDM_DELTA;
- } else {
- ee->ee_i_gain[mode] = (val >> 13) & 0x7;
-
- AR5K_EEPROM_READ(o++, val);
- ee->ee_i_gain[mode] |= (val << 3) & 0x38;
-
- if (mode == AR5K_EEPROM_MODE_11G)
- ee->ee_cck_ofdm_power_delta = (val >> 3) & 0xff;
- }
-
- if (ah->ah_ee_version >= AR5K_EEPROM_VERSION_4_0 &&
- mode == AR5K_EEPROM_MODE_11A) {
- ee->ee_i_cal[mode] = (val >> 8) & 0x3f;
- ee->ee_q_cal[mode] = (val >> 3) & 0x1f;
- }
-
- if (ah->ah_ee_version >= AR5K_EEPROM_VERSION_4_6 &&
- mode == AR5K_EEPROM_MODE_11G)
- ee->ee_scaled_cck_delta = (val >> 11) & 0x1f;
-
- /* return new offset */
- *offset = o;
-
- return 0;
-}
-
-/*
- * Initialize eeprom & capabilities structs
- */
-static int ath5k_eeprom_init(struct ath5k_hw *ah)
-{
- struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom;
- unsigned int mode, i;
- int ret;
- u32 offset;
- u16 val;
-
- /* Initial TX thermal adjustment values */
- ee->ee_tx_clip = 4;
- ee->ee_pwd_84 = ee->ee_pwd_90 = 1;
- ee->ee_gain_select = 1;
-
- /*
- * Read values from EEPROM and store them in the capability structure
- */
- AR5K_EEPROM_READ_HDR(AR5K_EEPROM_MAGIC, ee_magic);
- AR5K_EEPROM_READ_HDR(AR5K_EEPROM_PROTECT, ee_protect);
- AR5K_EEPROM_READ_HDR(AR5K_EEPROM_REG_DOMAIN, ee_regdomain);
- AR5K_EEPROM_READ_HDR(AR5K_EEPROM_VERSION, ee_version);
- AR5K_EEPROM_READ_HDR(AR5K_EEPROM_HDR, ee_header);
-
- /* Return if we have an old EEPROM */
- if (ah->ah_ee_version < AR5K_EEPROM_VERSION_3_0)
- return 0;
-
-#ifdef notyet
- /*
- * Validate the checksum of the EEPROM date. There are some
- * devices with invalid EEPROMs.
- */
- for (cksum = 0, offset = 0; offset < AR5K_EEPROM_INFO_MAX; offset++) {
- AR5K_EEPROM_READ(AR5K_EEPROM_INFO(offset), val);
- cksum ^= val;
- }
- if (cksum != AR5K_EEPROM_INFO_CKSUM) {
- ATH5K_ERR(ah->ah_sc, "Invalid EEPROM checksum 0x%04x\n", cksum);
- return -EIO;
- }
-#endif
-
- AR5K_EEPROM_READ_HDR(AR5K_EEPROM_ANT_GAIN(ah->ah_ee_version),
- ee_ant_gain);
-
- if (ah->ah_ee_version >= AR5K_EEPROM_VERSION_4_0) {
- AR5K_EEPROM_READ_HDR(AR5K_EEPROM_MISC0, ee_misc0);
- AR5K_EEPROM_READ_HDR(AR5K_EEPROM_MISC1, ee_misc1);
- }
-
- if (ah->ah_ee_version < AR5K_EEPROM_VERSION_3_3) {
- AR5K_EEPROM_READ(AR5K_EEPROM_OBDB0_2GHZ, val);
- ee->ee_ob[AR5K_EEPROM_MODE_11B][0] = val & 0x7;
- ee->ee_db[AR5K_EEPROM_MODE_11B][0] = (val >> 3) & 0x7;
-
- AR5K_EEPROM_READ(AR5K_EEPROM_OBDB1_2GHZ, val);
- ee->ee_ob[AR5K_EEPROM_MODE_11G][0] = val & 0x7;
- ee->ee_db[AR5K_EEPROM_MODE_11G][0] = (val >> 3) & 0x7;
- }
-
- /*
- * Get conformance test limit values
- */
- offset = AR5K_EEPROM_CTL(ah->ah_ee_version);
- ee->ee_ctls = AR5K_EEPROM_N_CTLS(ah->ah_ee_version);
-
- for (i = 0; i < ee->ee_ctls; i++) {
- AR5K_EEPROM_READ(offset++, val);
- ee->ee_ctl[i] = (val >> 8) & 0xff;
- ee->ee_ctl[i + 1] = val & 0xff;
- }
-
- /*
- * Get values for 802.11a (5GHz)
- */
- mode = AR5K_EEPROM_MODE_11A;
-
- ee->ee_turbo_max_power[mode] =
- AR5K_EEPROM_HDR_T_5GHZ_DBM(ee->ee_header);
-
- offset = AR5K_EEPROM_MODES_11A(ah->ah_ee_version);
-
- ret = ath5k_eeprom_read_ants(ah, &offset, mode);
- if (ret)
- return ret;
-
- AR5K_EEPROM_READ(offset++, val);
- ee->ee_adc_desired_size[mode] = (s8)((val >> 8) & 0xff);
- ee->ee_ob[mode][3] = (val >> 5) & 0x7;
- ee->ee_db[mode][3] = (val >> 2) & 0x7;
- ee->ee_ob[mode][2] = (val << 1) & 0x7;
-
- AR5K_EEPROM_READ(offset++, val);
- ee->ee_ob[mode][2] |= (val >> 15) & 0x1;
- ee->ee_db[mode][2] = (val >> 12) & 0x7;
- ee->ee_ob[mode][1] = (val >> 9) & 0x7;
- ee->ee_db[mode][1] = (val >> 6) & 0x7;
- ee->ee_ob[mode][0] = (val >> 3) & 0x7;
- ee->ee_db[mode][0] = val & 0x7;
-
- ret = ath5k_eeprom_read_modes(ah, &offset, mode);
- if (ret)
- return ret;
-
- if (ah->ah_ee_version >= AR5K_EEPROM_VERSION_4_1) {
- AR5K_EEPROM_READ(offset++, val);
- ee->ee_margin_tx_rx[mode] = val & 0x3f;
- }
-
- /*
- * Get values for 802.11b (2.4GHz)
- */
- mode = AR5K_EEPROM_MODE_11B;
- offset = AR5K_EEPROM_MODES_11B(ah->ah_ee_version);
-
- ret = ath5k_eeprom_read_ants(ah, &offset, mode);
- if (ret)
- return ret;
-
- AR5K_EEPROM_READ(offset++, val);
- ee->ee_adc_desired_size[mode] = (s8)((val >> 8) & 0xff);
- ee->ee_ob[mode][1] = (val >> 4) & 0x7;
- ee->ee_db[mode][1] = val & 0x7;
-
- ret = ath5k_eeprom_read_modes(ah, &offset, mode);
- if (ret)
- return ret;
-
- if (ah->ah_ee_version >= AR5K_EEPROM_VERSION_4_0) {
- AR5K_EEPROM_READ(offset++, val);
- ee->ee_cal_pier[mode][0] =
- ath5k_eeprom_bin2freq(ah, val & 0xff, mode);
- ee->ee_cal_pier[mode][1] =
- ath5k_eeprom_bin2freq(ah, (val >> 8) & 0xff, mode);
-
- AR5K_EEPROM_READ(offset++, val);
- ee->ee_cal_pier[mode][2] =
- ath5k_eeprom_bin2freq(ah, val & 0xff, mode);
- }
-
- if (ah->ah_ee_version >= AR5K_EEPROM_VERSION_4_1)
- ee->ee_margin_tx_rx[mode] = (val >> 8) & 0x3f;
-
- /*
- * Get values for 802.11g (2.4GHz)
- */
- mode = AR5K_EEPROM_MODE_11G;
- offset = AR5K_EEPROM_MODES_11G(ah->ah_ee_version);
-
- ret = ath5k_eeprom_read_ants(ah, &offset, mode);
- if (ret)
- return ret;
-
- AR5K_EEPROM_READ(offset++, val);
- ee->ee_adc_desired_size[mode] = (s8)((val >> 8) & 0xff);
- ee->ee_ob[mode][1] = (val >> 4) & 0x7;
- ee->ee_db[mode][1] = val & 0x7;
-
- ret = ath5k_eeprom_read_modes(ah, &offset, mode);
- if (ret)
- return ret;
-
- if (ah->ah_ee_version >= AR5K_EEPROM_VERSION_4_0) {
- AR5K_EEPROM_READ(offset++, val);
- ee->ee_cal_pier[mode][0] =
- ath5k_eeprom_bin2freq(ah, val & 0xff, mode);
- ee->ee_cal_pier[mode][1] =
- ath5k_eeprom_bin2freq(ah, (val >> 8) & 0xff, mode);
-
- AR5K_EEPROM_READ(offset++, val);
- ee->ee_turbo_max_power[mode] = val & 0x7f;
- ee->ee_xr_power[mode] = (val >> 7) & 0x3f;
-
- AR5K_EEPROM_READ(offset++, val);
- ee->ee_cal_pier[mode][2] =
- ath5k_eeprom_bin2freq(ah, val & 0xff, mode);
-
- if (ah->ah_ee_version >= AR5K_EEPROM_VERSION_4_1)
- ee->ee_margin_tx_rx[mode] = (val >> 8) & 0x3f;
-
- AR5K_EEPROM_READ(offset++, val);
- ee->ee_i_cal[mode] = (val >> 8) & 0x3f;
- ee->ee_q_cal[mode] = (val >> 3) & 0x1f;
-
- if (ah->ah_ee_version >= AR5K_EEPROM_VERSION_4_2) {
- AR5K_EEPROM_READ(offset++, val);
- ee->ee_cck_ofdm_gain_delta = val & 0xff;
- }
- }
-
- /*
- * Read 5GHz EEPROM channels
- */
-
- return 0;
-}
-
-/*
- * Read the MAC address from eeprom
- */
-static int ath5k_eeprom_read_mac(struct ath5k_hw *ah, u8 *mac)
-{
- u8 mac_d[ETH_ALEN];
- u32 total, offset;
- u16 data;
- int octet, ret;
-
- memset(mac, 0, ETH_ALEN);
- memset(mac_d, 0, ETH_ALEN);
-
- ret = ath5k_hw_eeprom_read(ah, 0x20, &data);
- if (ret)
- return ret;
-
- for (offset = 0x1f, octet = 0, total = 0; offset >= 0x1d; offset--) {
- ret = ath5k_hw_eeprom_read(ah, offset, &data);
- if (ret)
- return ret;
-
- total += data;
- mac_d[octet + 1] = data & 0xff;
- mac_d[octet] = data >> 8;
- octet += 2;
- }
-
- memcpy(mac, mac_d, ETH_ALEN);
-
- if (!total || total == 3 * 0xffff)
- return -EINVAL;
-
- return 0;
-}
-
-/*
- * Fill the capabilities struct
- */
-static int ath5k_hw_get_capabilities(struct ath5k_hw *ah)
-{
- u16 ee_header;
-
- ATH5K_TRACE(ah->ah_sc);
- /* Capabilities stored in the EEPROM */
- ee_header = ah->ah_capabilities.cap_eeprom.ee_header;
-
- if (ah->ah_version == AR5K_AR5210) {
- /*
- * Set radio capabilities
- * (The AR5110 only supports the middle 5GHz band)
- */
- ah->ah_capabilities.cap_range.range_5ghz_min = 5120;
- ah->ah_capabilities.cap_range.range_5ghz_max = 5430;
- ah->ah_capabilities.cap_range.range_2ghz_min = 0;
- ah->ah_capabilities.cap_range.range_2ghz_max = 0;
-
- /* Set supported modes */
- __set_bit(AR5K_MODE_11A, ah->ah_capabilities.cap_mode);
- __set_bit(AR5K_MODE_11A_TURBO, ah->ah_capabilities.cap_mode);
- } else {
- /*
- * XXX The tranceiver supports frequencies from 4920 to 6100GHz
- * XXX and from 2312 to 2732GHz. There are problems with the
- * XXX current ieee80211 implementation because the IEEE
- * XXX channel mapping does not support negative channel
- * XXX numbers (2312MHz is channel -19). Of course, this
- * XXX doesn't matter because these channels are out of range
- * XXX but some regulation domains like MKK (Japan) will
- * XXX support frequencies somewhere around 4.8GHz.
- */
-
- /*
- * Set radio capabilities
- */
-
- if (AR5K_EEPROM_HDR_11A(ee_header)) {
- ah->ah_capabilities.cap_range.range_5ghz_min = 5005; /* 4920 */
- ah->ah_capabilities.cap_range.range_5ghz_max = 6100;
-
- /* Set supported modes */
- __set_bit(AR5K_MODE_11A,
- ah->ah_capabilities.cap_mode);
- __set_bit(AR5K_MODE_11A_TURBO,
- ah->ah_capabilities.cap_mode);
- if (ah->ah_version == AR5K_AR5212)
- __set_bit(AR5K_MODE_11G_TURBO,
- ah->ah_capabilities.cap_mode);
- }
-
- /* Enable 802.11b if a 2GHz capable radio (2111/5112) is
- * connected */
- if (AR5K_EEPROM_HDR_11B(ee_header) ||
- AR5K_EEPROM_HDR_11G(ee_header)) {
- ah->ah_capabilities.cap_range.range_2ghz_min = 2412; /* 2312 */
- ah->ah_capabilities.cap_range.range_2ghz_max = 2732;
-
- if (AR5K_EEPROM_HDR_11B(ee_header))
- __set_bit(AR5K_MODE_11B,
- ah->ah_capabilities.cap_mode);
-
- if (AR5K_EEPROM_HDR_11G(ee_header))
- __set_bit(AR5K_MODE_11G,
- ah->ah_capabilities.cap_mode);
- }
- }
-
- /* GPIO */
- ah->ah_gpio_npins = AR5K_NUM_GPIO;
-
- /* Set number of supported TX queues */
- if (ah->ah_version == AR5K_AR5210)
- ah->ah_capabilities.cap_queues.q_tx_num =
- AR5K_NUM_TX_QUEUES_NOQCU;
- else
- ah->ah_capabilities.cap_queues.q_tx_num = AR5K_NUM_TX_QUEUES;
-
- return 0;
-}
-
-/*********************************\
- Protocol Control Unit Functions
-\*********************************/
-
-/*
- * Set Operation mode
- */
-int ath5k_hw_set_opmode(struct ath5k_hw *ah)
-{
- u32 pcu_reg, beacon_reg, low_id, high_id;
-
- pcu_reg = 0;
- beacon_reg = 0;
-
- ATH5K_TRACE(ah->ah_sc);
-
- switch (ah->ah_op_mode) {
- case IEEE80211_IF_TYPE_IBSS:
- pcu_reg |= AR5K_STA_ID1_ADHOC | AR5K_STA_ID1_DESC_ANTENNA |
- (ah->ah_version == AR5K_AR5210 ?
- AR5K_STA_ID1_NO_PSPOLL : 0);
- beacon_reg |= AR5K_BCR_ADHOC;
- break;
-
- case IEEE80211_IF_TYPE_AP:
- pcu_reg |= AR5K_STA_ID1_AP | AR5K_STA_ID1_RTS_DEF_ANTENNA |
- (ah->ah_version == AR5K_AR5210 ?
- AR5K_STA_ID1_NO_PSPOLL : 0);
- beacon_reg |= AR5K_BCR_AP;
- break;
-
- case IEEE80211_IF_TYPE_STA:
- pcu_reg |= AR5K_STA_ID1_DEFAULT_ANTENNA |
- (ah->ah_version == AR5K_AR5210 ?
- AR5K_STA_ID1_PWR_SV : 0);
- case IEEE80211_IF_TYPE_MNTR:
- pcu_reg |= AR5K_STA_ID1_DEFAULT_ANTENNA |
- (ah->ah_version == AR5K_AR5210 ?
- AR5K_STA_ID1_NO_PSPOLL : 0);
- break;
-
- default:
- return -EINVAL;
- }
-
- /*
- * Set PCU registers
- */
- low_id = AR5K_LOW_ID(ah->ah_sta_id);
- high_id = AR5K_HIGH_ID(ah->ah_sta_id);
- ath5k_hw_reg_write(ah, low_id, AR5K_STA_ID0);
- ath5k_hw_reg_write(ah, pcu_reg | high_id, AR5K_STA_ID1);
-
- /*
- * Set Beacon Control Register on 5210
- */
- if (ah->ah_version == AR5K_AR5210)
- ath5k_hw_reg_write(ah, beacon_reg, AR5K_BCR);
-
- return 0;
-}
-
-/*
- * BSSID Functions
- */
-
-/*
- * Get station id
- */
-void ath5k_hw_get_lladdr(struct ath5k_hw *ah, u8 *mac)
-{
- ATH5K_TRACE(ah->ah_sc);
- memcpy(mac, ah->ah_sta_id, ETH_ALEN);
-}
-
-/*
- * Set station id
- */
-int ath5k_hw_set_lladdr(struct ath5k_hw *ah, const u8 *mac)
-{
- u32 low_id, high_id;
-
- ATH5K_TRACE(ah->ah_sc);
- /* Set new station ID */
- memcpy(ah->ah_sta_id, mac, ETH_ALEN);
-
- low_id = AR5K_LOW_ID(mac);
- high_id = AR5K_HIGH_ID(mac);
-
- ath5k_hw_reg_write(ah, low_id, AR5K_STA_ID0);
- ath5k_hw_reg_write(ah, high_id, AR5K_STA_ID1);
-
- return 0;
-}
-
-/*
- * Set BSSID
- */
-void ath5k_hw_set_associd(struct ath5k_hw *ah, const u8 *bssid, u16 assoc_id)
-{
- u32 low_id, high_id;
- u16 tim_offset = 0;
-
- /*
- * Set simple BSSID mask on 5212
- */
- if (ah->ah_version == AR5K_AR5212) {
- ath5k_hw_reg_write(ah, 0xffffffff, AR5K_BSS_IDM0);
- ath5k_hw_reg_write(ah, 0xffffffff, AR5K_BSS_IDM1);
- }
-
- /*
- * Set BSSID which triggers the "SME Join" operation
- */
- low_id = AR5K_LOW_ID(bssid);
- high_id = AR5K_HIGH_ID(bssid);
- ath5k_hw_reg_write(ah, low_id, AR5K_BSS_ID0);
- ath5k_hw_reg_write(ah, high_id | ((assoc_id & 0x3fff) <<
- AR5K_BSS_ID1_AID_S), AR5K_BSS_ID1);
-
- if (assoc_id == 0) {
- ath5k_hw_disable_pspoll(ah);
- return;
- }
-
- AR5K_REG_WRITE_BITS(ah, AR5K_BEACON, AR5K_BEACON_TIM,
- tim_offset ? tim_offset + 4 : 0);
-
- ath5k_hw_enable_pspoll(ah, NULL, 0);
-}
-/**
- * ath5k_hw_set_bssid_mask - set common bits we should listen to
- *
- * The bssid_mask is a utility used by AR5212 hardware to inform the hardware
- * which bits of the interface's MAC address should be looked at when trying
- * to decide which packets to ACK. In station mode every bit matters. In AP
- * mode with a single BSS every bit matters as well. In AP mode with
- * multiple BSSes not every bit matters.
- *
- * @ah: the &struct ath5k_hw
- * @mask: the bssid_mask, a u8 array of size ETH_ALEN
- *
- * Note that this is a simple filter and *does* not filter out all
- * relevant frames. Some non-relevant frames will get through, probability
- * jocks are welcomed to compute.
- *
- * When handling multiple BSSes (or VAPs) you can get the BSSID mask by
- * computing the set of:
- *
- * ~ ( MAC XOR BSSID )
- *
- * When you do this you are essentially computing the common bits. Later it
- * is assumed the harware will "and" (&) the BSSID mask with the MAC address
- * to obtain the relevant bits which should match on the destination frame.
- *
- * Simple example: on your card you have have two BSSes you have created with
- * BSSID-01 and BSSID-02. Lets assume BSSID-01 will not use the MAC address.
- * There is another BSSID-03 but you are not part of it. For simplicity's sake,
- * assuming only 4 bits for a mac address and for BSSIDs you can then have:
- *
- * \
- * MAC: 0001 |
- * BSSID-01: 0100 | --> Belongs to us
- * BSSID-02: 1001 |
- * /
- * -------------------
- * BSSID-03: 0110 | --> External
- * -------------------
- *
- * Our bssid_mask would then be:
- *
- * On loop iteration for BSSID-01:
- * ~(0001 ^ 0100) -> ~(0101)
- * -> 1010
- * bssid_mask = 1010
- *
- * On loop iteration for BSSID-02:
- * bssid_mask &= ~(0001 ^ 1001)
- * bssid_mask = (1010) & ~(0001 ^ 1001)
- * bssid_mask = (1010) & ~(1001)
- * bssid_mask = (1010) & (0110)
- * bssid_mask = 0010
- *
- * A bssid_mask of 0010 means "only pay attention to the second least
- * significant bit". This is because its the only bit common
- * amongst the MAC and all BSSIDs we support. To findout what the real
- * common bit is we can simply "&" the bssid_mask now with any BSSID we have
- * or our MAC address (we assume the hardware uses the MAC address).
- *
- * Now, suppose there's an incoming frame for BSSID-03:
- *
- * IFRAME-01: 0110
- *
- * An easy eye-inspeciton of this already should tell you that this frame
- * will not pass our check. This is beacuse the bssid_mask tells the
- * hardware to only look at the second least significant bit and the
- * common bit amongst the MAC and BSSIDs is 0, this frame has the 2nd LSB
- * as 1, which does not match 0.
- *
- * So with IFRAME-01 we *assume* the hardware will do:
- *
- * allow = (IFRAME-01 & bssid_mask) == (bssid_mask & MAC) ? 1 : 0;
- * --> allow = (0110 & 0010) == (0010 & 0001) ? 1 : 0;
- * --> allow = (0010) == 0000 ? 1 : 0;
- * --> allow = 0
- *
- * Lets now test a frame that should work:
- *
- * IFRAME-02: 0001 (we should allow)
- *
- * allow = (0001 & 1010) == 1010
- *
- * allow = (IFRAME-02 & bssid_mask) == (bssid_mask & MAC) ? 1 : 0;
- * --> allow = (0001 & 0010) == (0010 & 0001) ? 1 :0;
- * --> allow = (0010) == (0010)
- * --> allow = 1
- *
- * Other examples:
- *
- * IFRAME-03: 0100 --> allowed
- * IFRAME-04: 1001 --> allowed
- * IFRAME-05: 1101 --> allowed but its not for us!!!
- *
- */
-int ath5k_hw_set_bssid_mask(struct ath5k_hw *ah, const u8 *mask)
-{
- u32 low_id, high_id;
- ATH5K_TRACE(ah->ah_sc);
-
- if (ah->ah_version == AR5K_AR5212) {
- low_id = AR5K_LOW_ID(mask);
- high_id = AR5K_HIGH_ID(mask);
-
- ath5k_hw_reg_write(ah, low_id, AR5K_BSS_IDM0);
- ath5k_hw_reg_write(ah, high_id, AR5K_BSS_IDM1);
-
- return 0;
- }
-
- return -EIO;
-}
-
-/*
- * Receive start/stop functions
- */
-
-/*
- * Start receive on PCU
- */
-void ath5k_hw_start_rx_pcu(struct ath5k_hw *ah)
-{
- ATH5K_TRACE(ah->ah_sc);
- AR5K_REG_DISABLE_BITS(ah, AR5K_DIAG_SW, AR5K_DIAG_SW_DIS_RX);
-
- /* TODO: ANI Support */
-}
-
-/*
- * Stop receive on PCU
- */
-void ath5k_hw_stop_pcu_recv(struct ath5k_hw *ah)
-{
- ATH5K_TRACE(ah->ah_sc);
- AR5K_REG_ENABLE_BITS(ah, AR5K_DIAG_SW, AR5K_DIAG_SW_DIS_RX);
-
- /* TODO: ANI Support */
-}
-
-/*
- * RX Filter functions
- */
-
-/*
- * Set multicast filter
- */
-void ath5k_hw_set_mcast_filter(struct ath5k_hw *ah, u32 filter0, u32 filter1)
-{
- ATH5K_TRACE(ah->ah_sc);
- /* Set the multicat filter */
- ath5k_hw_reg_write(ah, filter0, AR5K_MCAST_FILTER0);
- ath5k_hw_reg_write(ah, filter1, AR5K_MCAST_FILTER1);
-}
-
-/*
- * Set multicast filter by index
- */
-int ath5k_hw_set_mcast_filterindex(struct ath5k_hw *ah, u32 index)
-{
-
- ATH5K_TRACE(ah->ah_sc);
- if (index >= 64)
- return -EINVAL;
- else if (index >= 32)
- AR5K_REG_ENABLE_BITS(ah, AR5K_MCAST_FILTER1,
- (1 << (index - 32)));
- else
- AR5K_REG_ENABLE_BITS(ah, AR5K_MCAST_FILTER0, (1 << index));
-
- return 0;
-}
-
-/*
- * Clear Multicast filter by index
- */
-int ath5k_hw_clear_mcast_filter_idx(struct ath5k_hw *ah, u32 index)
-{
-
- ATH5K_TRACE(ah->ah_sc);
- if (index >= 64)
- return -EINVAL;
- else if (index >= 32)
- AR5K_REG_DISABLE_BITS(ah, AR5K_MCAST_FILTER1,
- (1 << (index - 32)));
- else
- AR5K_REG_DISABLE_BITS(ah, AR5K_MCAST_FILTER0, (1 << index));
-
- return 0;
-}
-
-/*
- * Get current rx filter
- */
-u32 ath5k_hw_get_rx_filter(struct ath5k_hw *ah)
-{
- u32 data, filter = 0;
-
- ATH5K_TRACE(ah->ah_sc);
- filter = ath5k_hw_reg_read(ah, AR5K_RX_FILTER);
-
- /*Radar detection for 5212*/
- if (ah->ah_version == AR5K_AR5212) {
- data = ath5k_hw_reg_read(ah, AR5K_PHY_ERR_FIL);
-
- if (data & AR5K_PHY_ERR_FIL_RADAR)
- filter |= AR5K_RX_FILTER_RADARERR;
- if (data & (AR5K_PHY_ERR_FIL_OFDM | AR5K_PHY_ERR_FIL_CCK))
- filter |= AR5K_RX_FILTER_PHYERR;
- }
-
- return filter;
-}
-
-/*
- * Set rx filter
- */
-void ath5k_hw_set_rx_filter(struct ath5k_hw *ah, u32 filter)
-{
- u32 data = 0;
-
- ATH5K_TRACE(ah->ah_sc);
-
- /* Set PHY error filter register on 5212*/
- if (ah->ah_version == AR5K_AR5212) {
- if (filter & AR5K_RX_FILTER_RADARERR)
- data |= AR5K_PHY_ERR_FIL_RADAR;
- if (filter & AR5K_RX_FILTER_PHYERR)
- data |= AR5K_PHY_ERR_FIL_OFDM | AR5K_PHY_ERR_FIL_CCK;
- }
-
- /*
- * The AR5210 uses promiscous mode to detect radar activity
- */
- if (ah->ah_version == AR5K_AR5210 &&
- (filter & AR5K_RX_FILTER_RADARERR)) {
- filter &= ~AR5K_RX_FILTER_RADARERR;
- filter |= AR5K_RX_FILTER_PROM;
- }
-
- /*Zero length DMA*/
- if (data)
- AR5K_REG_ENABLE_BITS(ah, AR5K_RXCFG, AR5K_RXCFG_ZLFDMA);
- else
- AR5K_REG_DISABLE_BITS(ah, AR5K_RXCFG, AR5K_RXCFG_ZLFDMA);
-
- /*Write RX Filter register*/
- ath5k_hw_reg_write(ah, filter & 0xff, AR5K_RX_FILTER);
-
- /*Write PHY error filter register on 5212*/
- if (ah->ah_version == AR5K_AR5212)
- ath5k_hw_reg_write(ah, data, AR5K_PHY_ERR_FIL);
-
-}
-
-/*
- * Beacon related functions
- */
-
-/*
- * Get a 32bit TSF
- */
-u32 ath5k_hw_get_tsf32(struct ath5k_hw *ah)
-{
- ATH5K_TRACE(ah->ah_sc);
- return ath5k_hw_reg_read(ah, AR5K_TSF_L32);
-}
-
-/*
- * Get the full 64bit TSF
- */
-u64 ath5k_hw_get_tsf64(struct ath5k_hw *ah)
-{
- u64 tsf = ath5k_hw_reg_read(ah, AR5K_TSF_U32);
- ATH5K_TRACE(ah->ah_sc);
-
- return ath5k_hw_reg_read(ah, AR5K_TSF_L32) | (tsf << 32);
-}
-
-/*
- * Force a TSF reset
- */
-void ath5k_hw_reset_tsf(struct ath5k_hw *ah)
-{
- ATH5K_TRACE(ah->ah_sc);
- AR5K_REG_ENABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_RESET_TSF);
-}
-
-/*
- * Initialize beacon timers
- */
-void ath5k_hw_init_beacon(struct ath5k_hw *ah, u32 next_beacon, u32 interval)
-{
- u32 timer1, timer2, timer3;
-
- ATH5K_TRACE(ah->ah_sc);
- /*
- * Set the additional timers by mode
- */
- switch (ah->ah_op_mode) {
- case IEEE80211_IF_TYPE_STA:
- if (ah->ah_version == AR5K_AR5210) {
- timer1 = 0xffffffff;
- timer2 = 0xffffffff;
- } else {
- timer1 = 0x0000ffff;
- timer2 = 0x0007ffff;
- }
- break;
-
- default:
- timer1 = (next_beacon - AR5K_TUNE_DMA_BEACON_RESP) << 3;
- timer2 = (next_beacon - AR5K_TUNE_SW_BEACON_RESP) << 3;
- }
-
- timer3 = next_beacon + (ah->ah_atim_window ? ah->ah_atim_window : 1);
-
- /*
- * Set the beacon register and enable all timers.
- * (next beacon, DMA beacon, software beacon, ATIM window time)
- */
- ath5k_hw_reg_write(ah, next_beacon, AR5K_TIMER0);
- ath5k_hw_reg_write(ah, timer1, AR5K_TIMER1);
- ath5k_hw_reg_write(ah, timer2, AR5K_TIMER2);
- ath5k_hw_reg_write(ah, timer3, AR5K_TIMER3);
-
- ath5k_hw_reg_write(ah, interval & (AR5K_BEACON_PERIOD |
- AR5K_BEACON_RESET_TSF | AR5K_BEACON_ENABLE),
- AR5K_BEACON);
-}
-
-#if 0
-/*
- * Set beacon timers
- */
-int ath5k_hw_set_beacon_timers(struct ath5k_hw *ah,
- const struct ath5k_beacon_state *state)
-{
- u32 cfp_period, next_cfp, dtim, interval, next_beacon;
-
- /*
- * TODO: should be changed through *state
- * review struct ath5k_beacon_state struct
- *
- * XXX: These are used for cfp period bellow, are they
- * ok ? Is it O.K. for tsf here to be 0 or should we use
- * get_tsf ?
- */
- u32 dtim_count = 0; /* XXX */
- u32 cfp_count = 0; /* XXX */
- u32 tsf = 0; /* XXX */
-
- ATH5K_TRACE(ah->ah_sc);
- /* Return on an invalid beacon state */
- if (state->bs_interval < 1)
- return -EINVAL;
-
- interval = state->bs_interval;
- dtim = state->bs_dtim_period;
-
- /*
- * PCF support?
- */
- if (state->bs_cfp_period > 0) {
- /*
- * Enable PCF mode and set the CFP
- * (Contention Free Period) and timer registers
- */
- cfp_period = state->bs_cfp_period * state->bs_dtim_period *
- state->bs_interval;
- next_cfp = (cfp_count * state->bs_dtim_period + dtim_count) *
- state->bs_interval;
-
- AR5K_REG_ENABLE_BITS(ah, AR5K_STA_ID1,
- AR5K_STA_ID1_DEFAULT_ANTENNA |
- AR5K_STA_ID1_PCF);
- ath5k_hw_reg_write(ah, cfp_period, AR5K_CFP_PERIOD);
- ath5k_hw_reg_write(ah, state->bs_cfp_max_duration,
- AR5K_CFP_DUR);
- ath5k_hw_reg_write(ah, (tsf + (next_cfp == 0 ? cfp_period :
- next_cfp)) << 3, AR5K_TIMER2);
- } else {
- /* Disable PCF mode */
- AR5K_REG_DISABLE_BITS(ah, AR5K_STA_ID1,
- AR5K_STA_ID1_DEFAULT_ANTENNA |
- AR5K_STA_ID1_PCF);
- }
-
- /*
- * Enable the beacon timer register
- */
- ath5k_hw_reg_write(ah, state->bs_next_beacon, AR5K_TIMER0);
-
- /*
- * Start the beacon timers
- */
- ath5k_hw_reg_write(ah, (ath5k_hw_reg_read(ah, AR5K_BEACON) &~
- (AR5K_BEACON_PERIOD | AR5K_BEACON_TIM)) |
- AR5K_REG_SM(state->bs_tim_offset ? state->bs_tim_offset + 4 : 0,
- AR5K_BEACON_TIM) | AR5K_REG_SM(state->bs_interval,
- AR5K_BEACON_PERIOD), AR5K_BEACON);
-
- /*
- * Write new beacon miss threshold, if it appears to be valid
- * XXX: Figure out right values for min <= bs_bmiss_threshold <= max
- * and return if its not in range. We can test this by reading value and
- * setting value to a largest value and seeing which values register.
- */
-
- AR5K_REG_WRITE_BITS(ah, AR5K_RSSI_THR, AR5K_RSSI_THR_BMISS,
- state->bs_bmiss_threshold);
-
- /*
- * Set sleep control register
- * XXX: Didn't find this in 5210 code but since this register
- * exists also in ar5k's 5210 headers i leave it as common code.
- */
- AR5K_REG_WRITE_BITS(ah, AR5K_SLEEP_CTL, AR5K_SLEEP_CTL_SLDUR,
- (state->bs_sleep_duration - 3) << 3);
-
- /*
- * Set enhanced sleep registers on 5212
- */
- if (ah->ah_version == AR5K_AR5212) {
- if (state->bs_sleep_duration > state->bs_interval &&
- roundup(state->bs_sleep_duration, interval) ==
- state->bs_sleep_duration)
- interval = state->bs_sleep_duration;
-
- if (state->bs_sleep_duration > dtim && (dtim == 0 ||
- roundup(state->bs_sleep_duration, dtim) ==
- state->bs_sleep_duration))
- dtim = state->bs_sleep_duration;
-
- if (interval > dtim)
- return -EINVAL;
-
- next_beacon = interval == dtim ? state->bs_next_dtim :
- state->bs_next_beacon;
-
- ath5k_hw_reg_write(ah,
- AR5K_REG_SM((state->bs_next_dtim - 3) << 3,
- AR5K_SLEEP0_NEXT_DTIM) |
- AR5K_REG_SM(10, AR5K_SLEEP0_CABTO) |
- AR5K_SLEEP0_ENH_SLEEP_EN |
- AR5K_SLEEP0_ASSUME_DTIM, AR5K_SLEEP0);
-
- ath5k_hw_reg_write(ah, AR5K_REG_SM((next_beacon - 3) << 3,
- AR5K_SLEEP1_NEXT_TIM) |
- AR5K_REG_SM(10, AR5K_SLEEP1_BEACON_TO), AR5K_SLEEP1);
-
- ath5k_hw_reg_write(ah,
- AR5K_REG_SM(interval, AR5K_SLEEP2_TIM_PER) |
- AR5K_REG_SM(dtim, AR5K_SLEEP2_DTIM_PER), AR5K_SLEEP2);
- }
-
- return 0;
-}
-
-/*
- * Reset beacon timers
- */
-void ath5k_hw_reset_beacon(struct ath5k_hw *ah)
-{
- ATH5K_TRACE(ah->ah_sc);
- /*
- * Disable beacon timer
- */
- ath5k_hw_reg_write(ah, 0, AR5K_TIMER0);
-
- /*
- * Disable some beacon register values
- */
- AR5K_REG_DISABLE_BITS(ah, AR5K_STA_ID1,
- AR5K_STA_ID1_DEFAULT_ANTENNA | AR5K_STA_ID1_PCF);
- ath5k_hw_reg_write(ah, AR5K_BEACON_PERIOD, AR5K_BEACON);
-}
-
-/*
- * Wait for beacon queue to finish
- */
-int ath5k_hw_beaconq_finish(struct ath5k_hw *ah, unsigned long phys_addr)
-{
- unsigned int i;
- int ret;
-
- ATH5K_TRACE(ah->ah_sc);
-
- /* 5210 doesn't have QCU*/
- if (ah->ah_version == AR5K_AR5210) {
- /*
- * Wait for beaconn queue to finish by checking
- * Control Register and Beacon Status Register.
- */
- for (i = AR5K_TUNE_BEACON_INTERVAL / 2; i > 0; i--) {
- if (!(ath5k_hw_reg_read(ah, AR5K_BSR) & AR5K_BSR_TXQ1F)
- ||
- !(ath5k_hw_reg_read(ah, AR5K_CR) & AR5K_BSR_TXQ1F))
- break;
- udelay(10);
- }
-
- /* Timeout... */
- if (i <= 0) {
- /*
- * Re-schedule the beacon queue
- */
- ath5k_hw_reg_write(ah, phys_addr, AR5K_NOQCU_TXDP1);
- ath5k_hw_reg_write(ah, AR5K_BCR_TQ1V | AR5K_BCR_BDMAE,
- AR5K_BCR);
-
- return -EIO;
- }
- ret = 0;
- } else {
- /*5211/5212*/
- ret = ath5k_hw_register_timeout(ah,
- AR5K_QUEUE_STATUS(AR5K_TX_QUEUE_ID_BEACON),
- AR5K_QCU_STS_FRMPENDCNT, 0, false);
-
- if (AR5K_REG_READ_Q(ah, AR5K_QCU_TXE, AR5K_TX_QUEUE_ID_BEACON))
- return -EIO;
- }
-
- return ret;
-}
-#endif
-
-/*
- * Update mib counters (statistics)
- */
-void ath5k_hw_update_mib_counters(struct ath5k_hw *ah,
- struct ieee80211_low_level_stats *stats)
-{
- ATH5K_TRACE(ah->ah_sc);
-
- /* Read-And-Clear */
- 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) {
- ath5k_hw_reg_write(ah, 0, AR5K_PROFCNT_TX);
- ath5k_hw_reg_write(ah, 0, AR5K_PROFCNT_RX);
- ath5k_hw_reg_write(ah, 0, AR5K_PROFCNT_RXCLR);
- ath5k_hw_reg_write(ah, 0, AR5K_PROFCNT_CYCLE);
- }
-}
-
-/** ath5k_hw_set_ack_bitrate - set bitrate for ACKs
- *
- * @ah: the &struct ath5k_hw
- * @high: determines if to use low bit rate or now
- */
-void ath5k_hw_set_ack_bitrate_high(struct ath5k_hw *ah, bool high)
-{
- if (ah->ah_version != AR5K_AR5212)
- return;
- else {
- u32 val = AR5K_STA_ID1_BASE_RATE_11B | AR5K_STA_ID1_ACKCTS_6MB;
- if (high)
- AR5K_REG_ENABLE_BITS(ah, AR5K_STA_ID1, val);
- else
- AR5K_REG_DISABLE_BITS(ah, AR5K_STA_ID1, val);
- }
-}
-
-
-/*
- * ACK/CTS Timeouts
- */
-
-/*
- * Set ACK timeout on PCU
- */
-int ath5k_hw_set_ack_timeout(struct ath5k_hw *ah, unsigned int timeout)
-{
- ATH5K_TRACE(ah->ah_sc);
- if (ath5k_hw_clocktoh(AR5K_REG_MS(0xffffffff, AR5K_TIME_OUT_ACK),
- ah->ah_turbo) <= timeout)
- return -EINVAL;
-
- AR5K_REG_WRITE_BITS(ah, AR5K_TIME_OUT, AR5K_TIME_OUT_ACK,
- ath5k_hw_htoclock(timeout, ah->ah_turbo));
-
- return 0;
-}
-
-/*
- * Read the ACK timeout from PCU
- */
-unsigned int ath5k_hw_get_ack_timeout(struct ath5k_hw *ah)
-{
- ATH5K_TRACE(ah->ah_sc);
-
- return ath5k_hw_clocktoh(AR5K_REG_MS(ath5k_hw_reg_read(ah,
- AR5K_TIME_OUT), AR5K_TIME_OUT_ACK), ah->ah_turbo);
-}
-
-/*
- * Set CTS timeout on PCU
- */
-int ath5k_hw_set_cts_timeout(struct ath5k_hw *ah, unsigned int timeout)
-{
- ATH5K_TRACE(ah->ah_sc);
- if (ath5k_hw_clocktoh(AR5K_REG_MS(0xffffffff, AR5K_TIME_OUT_CTS),
- ah->ah_turbo) <= timeout)
- return -EINVAL;
-
- AR5K_REG_WRITE_BITS(ah, AR5K_TIME_OUT, AR5K_TIME_OUT_CTS,
- ath5k_hw_htoclock(timeout, ah->ah_turbo));
-
- return 0;
-}
-
-/*
- * Read CTS timeout from PCU
- */
-unsigned int ath5k_hw_get_cts_timeout(struct ath5k_hw *ah)
-{
- ATH5K_TRACE(ah->ah_sc);
- return ath5k_hw_clocktoh(AR5K_REG_MS(ath5k_hw_reg_read(ah,
- AR5K_TIME_OUT), AR5K_TIME_OUT_CTS), ah->ah_turbo);
-}
-
-/*
- * Key table (WEP) functions
- */
-
-int ath5k_hw_reset_key(struct ath5k_hw *ah, u16 entry)
-{
- unsigned int i;
-
- ATH5K_TRACE(ah->ah_sc);
- AR5K_ASSERT_ENTRY(entry, AR5K_KEYTABLE_SIZE);
-
- for (i = 0; i < AR5K_KEYCACHE_SIZE; i++)
- ath5k_hw_reg_write(ah, 0, AR5K_KEYTABLE_OFF(entry, i));
-
- /*
- * 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));
-
- return 0;
-}
-
-int ath5k_hw_is_key_valid(struct ath5k_hw *ah, u16 entry)
-{
- ATH5K_TRACE(ah->ah_sc);
- AR5K_ASSERT_ENTRY(entry, AR5K_KEYTABLE_SIZE);
-
- /* Check the validation flag at the end of the entry */
- return ath5k_hw_reg_read(ah, AR5K_KEYTABLE_MAC1(entry)) &
- AR5K_KEYTABLE_VALID;
-}
-
-int ath5k_hw_set_key(struct ath5k_hw *ah, u16 entry,
- const struct ieee80211_key_conf *key, const u8 *mac)
-{
- unsigned int i;
- __le32 key_v[5] = {};
- u32 keytype;
-
- ATH5K_TRACE(ah->ah_sc);
-
- /* key->keylen comes in from mac80211 in bytes */
-
- if (key->keylen > AR5K_KEYTABLE_SIZE / 8)
- return -EOPNOTSUPP;
-
- switch (key->keylen) {
- /* WEP 40-bit = 40-bit entered key + 24 bit IV = 64-bit */
- case 40 / 8:
- memcpy(&key_v[0], key->key, 5);
- keytype = AR5K_KEYTABLE_TYPE_40;
- break;
-
- /* WEP 104-bit = 104-bit entered key + 24-bit IV = 128-bit */
- case 104 / 8:
- memcpy(&key_v[0], &key->key[0], 6);
- memcpy(&key_v[2], &key->key[6], 6);
- memcpy(&key_v[4], &key->key[12], 1);
- keytype = AR5K_KEYTABLE_TYPE_104;
- break;
- /* WEP 128-bit = 128-bit entered key + 24 bit IV = 152-bit */
- case 128 / 8:
- memcpy(&key_v[0], &key->key[0], 6);
- memcpy(&key_v[2], &key->key[6], 6);
- memcpy(&key_v[4], &key->key[12], 4);
- keytype = AR5K_KEYTABLE_TYPE_128;
- break;
-
- default:
- return -EINVAL; /* shouldn't happen */
- }
-
- for (i = 0; i < ARRAY_SIZE(key_v); i++)
- ath5k_hw_reg_write(ah, le32_to_cpu(key_v[i]),
- AR5K_KEYTABLE_OFF(entry, i));
-
- ath5k_hw_reg_write(ah, keytype, AR5K_KEYTABLE_TYPE(entry));
-
- return ath5k_hw_set_key_lladdr(ah, entry, mac);
-}
-
-int ath5k_hw_set_key_lladdr(struct ath5k_hw *ah, u16 entry, const u8 *mac)
-{
- u32 low_id, high_id;
-
- ATH5K_TRACE(ah->ah_sc);
- /* Invalid entry (key table overflow) */
- AR5K_ASSERT_ENTRY(entry, AR5K_KEYTABLE_SIZE);
-
- /* MAC may be NULL if it's a broadcast key. In this case no need to
- * to compute AR5K_LOW_ID and AR5K_HIGH_ID as we already know it. */
- if (unlikely(mac == NULL)) {
- low_id = 0xffffffff;
- high_id = 0xffff | AR5K_KEYTABLE_VALID;
- } else {
- low_id = AR5K_LOW_ID(mac);
- high_id = AR5K_HIGH_ID(mac) | AR5K_KEYTABLE_VALID;
- }
-
- ath5k_hw_reg_write(ah, low_id, AR5K_KEYTABLE_MAC0(entry));
- ath5k_hw_reg_write(ah, high_id, AR5K_KEYTABLE_MAC1(entry));
-
- return 0;
-}
-
-
-/********************************************\
-Queue Control Unit, DFS Control Unit Functions
-\********************************************/
-
-/*
- * Initialize a transmit queue
- */
-int ath5k_hw_setup_tx_queue(struct ath5k_hw *ah, enum ath5k_tx_queue queue_type,
- struct ath5k_txq_info *queue_info)
-{
- unsigned int queue;
- int ret;
-
- ATH5K_TRACE(ah->ah_sc);
-
- /*
- * Get queue by type
- */
- /*5210 only has 2 queues*/
- if (ah->ah_version == AR5K_AR5210) {
- switch (queue_type) {
- case AR5K_TX_QUEUE_DATA:
- queue = AR5K_TX_QUEUE_ID_NOQCU_DATA;
- break;
- case AR5K_TX_QUEUE_BEACON:
- case AR5K_TX_QUEUE_CAB:
- queue = AR5K_TX_QUEUE_ID_NOQCU_BEACON;
- break;
- default:
- return -EINVAL;
- }
- } else {
- switch (queue_type) {
- case AR5K_TX_QUEUE_DATA:
- for (queue = AR5K_TX_QUEUE_ID_DATA_MIN;
- ah->ah_txq[queue].tqi_type !=
- AR5K_TX_QUEUE_INACTIVE; queue++) {
-
- if (queue > AR5K_TX_QUEUE_ID_DATA_MAX)
- return -EINVAL;
- }
- break;
- case AR5K_TX_QUEUE_UAPSD:
- queue = AR5K_TX_QUEUE_ID_UAPSD;
- break;
- case AR5K_TX_QUEUE_BEACON:
- queue = AR5K_TX_QUEUE_ID_BEACON;
- break;
- case AR5K_TX_QUEUE_CAB:
- queue = AR5K_TX_QUEUE_ID_CAB;
- break;
- case AR5K_TX_QUEUE_XR_DATA:
- if (ah->ah_version != AR5K_AR5212)
- ATH5K_ERR(ah->ah_sc,
- "XR data queues only supported in"
- " 5212!\n");
- queue = AR5K_TX_QUEUE_ID_XR_DATA;
- break;
- default:
- return -EINVAL;
- }
- }
-
- /*
- * Setup internal queue structure
- */
- memset(&ah->ah_txq[queue], 0, sizeof(struct ath5k_txq_info));
- ah->ah_txq[queue].tqi_type = queue_type;
-
- if (queue_info != NULL) {
- queue_info->tqi_type = queue_type;
- ret = ath5k_hw_setup_tx_queueprops(ah, queue, queue_info);
- if (ret)
- return ret;
- }
- /*
- * We use ah_txq_status to hold a temp value for
- * the Secondary interrupt mask registers on 5211+
- * check out ath5k_hw_reset_tx_queue
- */
- AR5K_Q_ENABLE_BITS(ah->ah_txq_status, queue);
-
- return queue;
-}
-
-/*
- * Setup a transmit queue
- */
-int ath5k_hw_setup_tx_queueprops(struct ath5k_hw *ah, int queue,
- const struct ath5k_txq_info *queue_info)
-{
- ATH5K_TRACE(ah->ah_sc);
- AR5K_ASSERT_ENTRY(queue, ah->ah_capabilities.cap_queues.q_tx_num);
-
- if (ah->ah_txq[queue].tqi_type == AR5K_TX_QUEUE_INACTIVE)
- return -EIO;
-
- memcpy(&ah->ah_txq[queue], queue_info, sizeof(struct ath5k_txq_info));
-
- /*XXX: Is this supported on 5210 ?*/
- if ((queue_info->tqi_type == AR5K_TX_QUEUE_DATA &&
- ((queue_info->tqi_subtype == AR5K_WME_AC_VI) ||
- (queue_info->tqi_subtype == AR5K_WME_AC_VO))) ||
- queue_info->tqi_type == AR5K_TX_QUEUE_UAPSD)
- ah->ah_txq[queue].tqi_flags |= AR5K_TXQ_FLAG_POST_FR_BKOFF_DIS;
-
- return 0;
-}
-
-/*
- * Get properties for a specific transmit queue
- */
-int ath5k_hw_get_tx_queueprops(struct ath5k_hw *ah, int queue,
- struct ath5k_txq_info *queue_info)
-{
- ATH5K_TRACE(ah->ah_sc);
- memcpy(queue_info, &ah->ah_txq[queue], sizeof(struct ath5k_txq_info));
- return 0;
-}
-
-/*
- * Set a transmit queue inactive
- */
-void ath5k_hw_release_tx_queue(struct ath5k_hw *ah, unsigned int queue)
-{
- ATH5K_TRACE(ah->ah_sc);
- if (WARN_ON(queue >= ah->ah_capabilities.cap_queues.q_tx_num))
- return;
-
- /* This queue will be skipped in further operations */
- ah->ah_txq[queue].tqi_type = AR5K_TX_QUEUE_INACTIVE;
- /*For SIMR setup*/
- AR5K_Q_DISABLE_BITS(ah->ah_txq_status, queue);
-}
-
-/*
- * Set DFS params for a transmit queue
- */
-int ath5k_hw_reset_tx_queue(struct ath5k_hw *ah, unsigned int queue)
-{
- u32 cw_min, cw_max, retry_lg, retry_sh;
- struct ath5k_txq_info *tq = &ah->ah_txq[queue];
-
- ATH5K_TRACE(ah->ah_sc);
- AR5K_ASSERT_ENTRY(queue, ah->ah_capabilities.cap_queues.q_tx_num);
-
- tq = &ah->ah_txq[queue];
-
- if (tq->tqi_type == AR5K_TX_QUEUE_INACTIVE)
- return 0;
-
- if (ah->ah_version == AR5K_AR5210) {
- /* Only handle data queues, others will be ignored */
- if (tq->tqi_type != AR5K_TX_QUEUE_DATA)
- return 0;
-
- /* Set Slot time */
- ath5k_hw_reg_write(ah, ah->ah_turbo ?
- AR5K_INIT_SLOT_TIME_TURBO : AR5K_INIT_SLOT_TIME,
- AR5K_SLOT_TIME);
- /* Set ACK_CTS timeout */
- ath5k_hw_reg_write(ah, ah->ah_turbo ?
- AR5K_INIT_ACK_CTS_TIMEOUT_TURBO :
- AR5K_INIT_ACK_CTS_TIMEOUT, AR5K_SLOT_TIME);
- /* Set Transmit Latency */
- ath5k_hw_reg_write(ah, ah->ah_turbo ?
- AR5K_INIT_TRANSMIT_LATENCY_TURBO :
- AR5K_INIT_TRANSMIT_LATENCY, AR5K_USEC_5210);
- /* Set IFS0 */
- if (ah->ah_turbo)
- ath5k_hw_reg_write(ah, ((AR5K_INIT_SIFS_TURBO +
- (ah->ah_aifs + tq->tqi_aifs) *
- AR5K_INIT_SLOT_TIME_TURBO) <<
- AR5K_IFS0_DIFS_S) | AR5K_INIT_SIFS_TURBO,
- AR5K_IFS0);
- else
- ath5k_hw_reg_write(ah, ((AR5K_INIT_SIFS +
- (ah->ah_aifs + tq->tqi_aifs) *
- AR5K_INIT_SLOT_TIME) << AR5K_IFS0_DIFS_S) |
- AR5K_INIT_SIFS, AR5K_IFS0);
-
- /* Set IFS1 */
- ath5k_hw_reg_write(ah, ah->ah_turbo ?
- AR5K_INIT_PROTO_TIME_CNTRL_TURBO :
- AR5K_INIT_PROTO_TIME_CNTRL, AR5K_IFS1);
- /* Set AR5K_PHY_SETTLING */
- ath5k_hw_reg_write(ah, ah->ah_turbo ?
- (ath5k_hw_reg_read(ah, AR5K_PHY_SETTLING) & ~0x7F)
- | 0x38 :
- (ath5k_hw_reg_read(ah, AR5K_PHY_SETTLING) & ~0x7F)
- | 0x1C,
- AR5K_PHY_SETTLING);
- /* Set Frame Control Register */
- ath5k_hw_reg_write(ah, ah->ah_turbo ?
- (AR5K_PHY_FRAME_CTL_INI | AR5K_PHY_TURBO_MODE |
- AR5K_PHY_TURBO_SHORT | 0x2020) :
- (AR5K_PHY_FRAME_CTL_INI | 0x1020),
- AR5K_PHY_FRAME_CTL_5210);
- }
-
- /*
- * Calculate cwmin/max by channel mode
- */
- cw_min = ah->ah_cw_min = AR5K_TUNE_CWMIN;
- cw_max = ah->ah_cw_max = AR5K_TUNE_CWMAX;
- ah->ah_aifs = AR5K_TUNE_AIFS;
- /*XR is only supported on 5212*/
- if (IS_CHAN_XR(ah->ah_current_channel) &&
- ah->ah_version == AR5K_AR5212) {
- cw_min = ah->ah_cw_min = AR5K_TUNE_CWMIN_XR;
- cw_max = ah->ah_cw_max = AR5K_TUNE_CWMAX_XR;
- ah->ah_aifs = AR5K_TUNE_AIFS_XR;
- /*B mode is not supported on 5210*/
- } else if (IS_CHAN_B(ah->ah_current_channel) &&
- ah->ah_version != AR5K_AR5210) {
- cw_min = ah->ah_cw_min = AR5K_TUNE_CWMIN_11B;
- cw_max = ah->ah_cw_max = AR5K_TUNE_CWMAX_11B;
- ah->ah_aifs = AR5K_TUNE_AIFS_11B;
- }
-
- cw_min = 1;
- while (cw_min < ah->ah_cw_min)
- cw_min = (cw_min << 1) | 1;
-
- cw_min = tq->tqi_cw_min < 0 ? (cw_min >> (-tq->tqi_cw_min)) :
- ((cw_min << tq->tqi_cw_min) + (1 << tq->tqi_cw_min) - 1);
- cw_max = tq->tqi_cw_max < 0 ? (cw_max >> (-tq->tqi_cw_max)) :
- ((cw_max << tq->tqi_cw_max) + (1 << tq->tqi_cw_max) - 1);
-
- /*
- * Calculate and set retry limits
- */
- if (ah->ah_software_retry) {
- /* XXX Need to test this */
- retry_lg = ah->ah_limit_tx_retries;
- retry_sh = retry_lg = retry_lg > AR5K_DCU_RETRY_LMT_SH_RETRY ?
- AR5K_DCU_RETRY_LMT_SH_RETRY : retry_lg;
- } else {
- retry_lg = AR5K_INIT_LG_RETRY;
- retry_sh = AR5K_INIT_SH_RETRY;
- }
-
- /*No QCU/DCU [5210]*/
- if (ah->ah_version == AR5K_AR5210) {
- ath5k_hw_reg_write(ah,
- (cw_min << AR5K_NODCU_RETRY_LMT_CW_MIN_S)
- | AR5K_REG_SM(AR5K_INIT_SLG_RETRY,
- AR5K_NODCU_RETRY_LMT_SLG_RETRY)
- | AR5K_REG_SM(AR5K_INIT_SSH_RETRY,
- AR5K_NODCU_RETRY_LMT_SSH_RETRY)
- | AR5K_REG_SM(retry_lg, AR5K_NODCU_RETRY_LMT_LG_RETRY)
- | AR5K_REG_SM(retry_sh, AR5K_NODCU_RETRY_LMT_SH_RETRY),
- AR5K_NODCU_RETRY_LMT);
- } else {
- /*QCU/DCU [5211+]*/
- ath5k_hw_reg_write(ah,
- AR5K_REG_SM(AR5K_INIT_SLG_RETRY,
- AR5K_DCU_RETRY_LMT_SLG_RETRY) |
- AR5K_REG_SM(AR5K_INIT_SSH_RETRY,
- AR5K_DCU_RETRY_LMT_SSH_RETRY) |
- AR5K_REG_SM(retry_lg, AR5K_DCU_RETRY_LMT_LG_RETRY) |
- AR5K_REG_SM(retry_sh, AR5K_DCU_RETRY_LMT_SH_RETRY),
- AR5K_QUEUE_DFS_RETRY_LIMIT(queue));
-
- /*===Rest is also for QCU/DCU only [5211+]===*/
-
- /*
- * Set initial content window (cw_min/cw_max)
- * and arbitrated interframe space (aifs)...
- */
- ath5k_hw_reg_write(ah,
- AR5K_REG_SM(cw_min, AR5K_DCU_LCL_IFS_CW_MIN) |
- AR5K_REG_SM(cw_max, AR5K_DCU_LCL_IFS_CW_MAX) |
- AR5K_REG_SM(ah->ah_aifs + tq->tqi_aifs,
- AR5K_DCU_LCL_IFS_AIFS),
- AR5K_QUEUE_DFS_LOCAL_IFS(queue));
-
- /*
- * Set misc registers
- */
- ath5k_hw_reg_write(ah, AR5K_QCU_MISC_DCU_EARLY,
- AR5K_QUEUE_MISC(queue));
-
- if (tq->tqi_cbr_period) {
- ath5k_hw_reg_write(ah, AR5K_REG_SM(tq->tqi_cbr_period,
- AR5K_QCU_CBRCFG_INTVAL) |
- AR5K_REG_SM(tq->tqi_cbr_overflow_limit,
- AR5K_QCU_CBRCFG_ORN_THRES),
- AR5K_QUEUE_CBRCFG(queue));
- AR5K_REG_ENABLE_BITS(ah, AR5K_QUEUE_MISC(queue),
- AR5K_QCU_MISC_FRSHED_CBR);
- if (tq->tqi_cbr_overflow_limit)
- AR5K_REG_ENABLE_BITS(ah,
- AR5K_QUEUE_MISC(queue),
- AR5K_QCU_MISC_CBR_THRES_ENABLE);
- }
-
- if (tq->tqi_ready_time)
- ath5k_hw_reg_write(ah, AR5K_REG_SM(tq->tqi_ready_time,
- AR5K_QCU_RDYTIMECFG_INTVAL) |
- AR5K_QCU_RDYTIMECFG_ENABLE,
- AR5K_QUEUE_RDYTIMECFG(queue));
-
- if (tq->tqi_burst_time) {
- ath5k_hw_reg_write(ah, AR5K_REG_SM(tq->tqi_burst_time,
- AR5K_DCU_CHAN_TIME_DUR) |
- AR5K_DCU_CHAN_TIME_ENABLE,
- AR5K_QUEUE_DFS_CHANNEL_TIME(queue));
-
- if (tq->tqi_flags & AR5K_TXQ_FLAG_RDYTIME_EXP_POLICY_ENABLE)
- AR5K_REG_ENABLE_BITS(ah,
- AR5K_QUEUE_MISC(queue),
- AR5K_QCU_MISC_RDY_VEOL_POLICY);
- }
-
- if (tq->tqi_flags & AR5K_TXQ_FLAG_BACKOFF_DISABLE)
- ath5k_hw_reg_write(ah, AR5K_DCU_MISC_POST_FR_BKOFF_DIS,
- AR5K_QUEUE_DFS_MISC(queue));
-
- if (tq->tqi_flags & AR5K_TXQ_FLAG_FRAG_BURST_BACKOFF_ENABLE)
- ath5k_hw_reg_write(ah, AR5K_DCU_MISC_BACKOFF_FRAG,
- AR5K_QUEUE_DFS_MISC(queue));
-
- /*
- * Set registers by queue type
- */
- switch (tq->tqi_type) {
- case AR5K_TX_QUEUE_BEACON:
- AR5K_REG_ENABLE_BITS(ah, AR5K_QUEUE_MISC(queue),
- AR5K_QCU_MISC_FRSHED_DBA_GT |
- AR5K_QCU_MISC_CBREXP_BCN |
- AR5K_QCU_MISC_BCN_ENABLE);
-
- AR5K_REG_ENABLE_BITS(ah, AR5K_QUEUE_DFS_MISC(queue),
- (AR5K_DCU_MISC_ARBLOCK_CTL_GLOBAL <<
- AR5K_DCU_MISC_ARBLOCK_CTL_S) |
- AR5K_DCU_MISC_POST_FR_BKOFF_DIS |
- AR5K_DCU_MISC_BCN_ENABLE);
-
- ath5k_hw_reg_write(ah, ((AR5K_TUNE_BEACON_INTERVAL -
- (AR5K_TUNE_SW_BEACON_RESP -
- AR5K_TUNE_DMA_BEACON_RESP) -
- AR5K_TUNE_ADDITIONAL_SWBA_BACKOFF) * 1024) |
- AR5K_QCU_RDYTIMECFG_ENABLE,
- AR5K_QUEUE_RDYTIMECFG(queue));
- break;
-
- case AR5K_TX_QUEUE_CAB:
- AR5K_REG_ENABLE_BITS(ah, AR5K_QUEUE_MISC(queue),
- AR5K_QCU_MISC_FRSHED_DBA_GT |
- AR5K_QCU_MISC_CBREXP |
- AR5K_QCU_MISC_CBREXP_BCN);
-
- AR5K_REG_ENABLE_BITS(ah, AR5K_QUEUE_DFS_MISC(queue),
- (AR5K_DCU_MISC_ARBLOCK_CTL_GLOBAL <<
- AR5K_DCU_MISC_ARBLOCK_CTL_S));
- break;
-
- case AR5K_TX_QUEUE_UAPSD:
- AR5K_REG_ENABLE_BITS(ah, AR5K_QUEUE_MISC(queue),
- AR5K_QCU_MISC_CBREXP);
- break;
-
- case AR5K_TX_QUEUE_DATA:
- default:
- break;
- }
-
- /*
- * Enable interrupts for this tx queue
- * in the secondary interrupt mask registers
- */
- if (tq->tqi_flags & AR5K_TXQ_FLAG_TXOKINT_ENABLE)
- AR5K_Q_ENABLE_BITS(ah->ah_txq_imr_txok, queue);
-
- if (tq->tqi_flags & AR5K_TXQ_FLAG_TXERRINT_ENABLE)
- AR5K_Q_ENABLE_BITS(ah->ah_txq_imr_txerr, queue);
-
- if (tq->tqi_flags & AR5K_TXQ_FLAG_TXURNINT_ENABLE)
- AR5K_Q_ENABLE_BITS(ah->ah_txq_imr_txurn, queue);
-
- if (tq->tqi_flags & AR5K_TXQ_FLAG_TXDESCINT_ENABLE)
- AR5K_Q_ENABLE_BITS(ah->ah_txq_imr_txdesc, queue);
-
- if (tq->tqi_flags & AR5K_TXQ_FLAG_TXEOLINT_ENABLE)
- AR5K_Q_ENABLE_BITS(ah->ah_txq_imr_txeol, queue);
-
-
- /* Update secondary interrupt mask registers */
- ah->ah_txq_imr_txok &= ah->ah_txq_status;
- ah->ah_txq_imr_txerr &= ah->ah_txq_status;
- ah->ah_txq_imr_txurn &= ah->ah_txq_status;
- ah->ah_txq_imr_txdesc &= ah->ah_txq_status;
- ah->ah_txq_imr_txeol &= ah->ah_txq_status;
-
- ath5k_hw_reg_write(ah, AR5K_REG_SM(ah->ah_txq_imr_txok,
- AR5K_SIMR0_QCU_TXOK) |
- AR5K_REG_SM(ah->ah_txq_imr_txdesc,
- AR5K_SIMR0_QCU_TXDESC), AR5K_SIMR0);
- ath5k_hw_reg_write(ah, AR5K_REG_SM(ah->ah_txq_imr_txerr,
- AR5K_SIMR1_QCU_TXERR) |
- AR5K_REG_SM(ah->ah_txq_imr_txeol,
- AR5K_SIMR1_QCU_TXEOL), AR5K_SIMR1);
- ath5k_hw_reg_write(ah, AR5K_REG_SM(ah->ah_txq_imr_txurn,
- AR5K_SIMR2_QCU_TXURN), AR5K_SIMR2);
- }
-
- return 0;
-}
-
-/*
- * Get number of pending frames
- * for a specific queue [5211+]
- */
-u32 ath5k_hw_num_tx_pending(struct ath5k_hw *ah, unsigned int queue) {
- ATH5K_TRACE(ah->ah_sc);
- AR5K_ASSERT_ENTRY(queue, ah->ah_capabilities.cap_queues.q_tx_num);
-
- /* Return if queue is declared inactive */
- if (ah->ah_txq[queue].tqi_type == AR5K_TX_QUEUE_INACTIVE)
- return false;
-
- /* XXX: How about AR5K_CFG_TXCNT ? */
- if (ah->ah_version == AR5K_AR5210)
- return false;
-
- return AR5K_QUEUE_STATUS(queue) & AR5K_QCU_STS_FRMPENDCNT;
-}
-
-/*
- * Set slot time
- */
-int ath5k_hw_set_slot_time(struct ath5k_hw *ah, unsigned int slot_time)
-{
- ATH5K_TRACE(ah->ah_sc);
- if (slot_time < AR5K_SLOT_TIME_9 || slot_time > AR5K_SLOT_TIME_MAX)
- return -EINVAL;
-
- if (ah->ah_version == AR5K_AR5210)
- ath5k_hw_reg_write(ah, ath5k_hw_htoclock(slot_time,
- ah->ah_turbo), AR5K_SLOT_TIME);
- else
- ath5k_hw_reg_write(ah, slot_time, AR5K_DCU_GBL_IFS_SLOT);
-
- return 0;
-}
-
-/*
- * Get slot time
- */
-unsigned int ath5k_hw_get_slot_time(struct ath5k_hw *ah)
-{
- ATH5K_TRACE(ah->ah_sc);
- if (ah->ah_version == AR5K_AR5210)
- return ath5k_hw_clocktoh(ath5k_hw_reg_read(ah,
- AR5K_SLOT_TIME) & 0xffff, ah->ah_turbo);
- else
- return ath5k_hw_reg_read(ah, AR5K_DCU_GBL_IFS_SLOT) & 0xffff;
-}
-
-
-/******************************\
- Hardware Descriptor Functions
-\******************************/
-
-/*
- * TX Descriptor
- */
-
-/*
- * Initialize the 2-word tx descriptor on 5210/5211
- */
-static int
-ath5k_hw_setup_2word_tx_desc(struct ath5k_hw *ah, struct ath5k_desc *desc,
- unsigned int pkt_len, unsigned int hdr_len, enum ath5k_pkt_type type,
- unsigned int tx_power, unsigned int tx_rate0, unsigned int tx_tries0,
- unsigned int key_index, unsigned int antenna_mode, unsigned int flags,
- unsigned int rtscts_rate, unsigned int rtscts_duration)
-{
- u32 frame_type;
- struct ath5k_hw_2w_tx_ctl *tx_ctl;
- unsigned int frame_len;
-
- tx_ctl = &desc->ud.ds_tx5210.tx_ctl;
-
- /*
- * Validate input
- * - Zero retries don't make sense.
- * - A zero rate will put the HW into a mode where it continously sends
- * noise on the channel, so it is important to avoid this.
- */
- if (unlikely(tx_tries0 == 0)) {
- ATH5K_ERR(ah->ah_sc, "zero retries\n");
- WARN_ON(1);
- return -EINVAL;
- }
- if (unlikely(tx_rate0 == 0)) {
- ATH5K_ERR(ah->ah_sc, "zero rate\n");
- WARN_ON(1);
- return -EINVAL;
- }
-
- /* Clear descriptor */
- memset(&desc->ud.ds_tx5210, 0, sizeof(struct ath5k_hw_5210_tx_desc));
-
- /* Setup control descriptor */
-
- /* Verify and set frame length */
-
- /* remove padding we might have added before */
- frame_len = pkt_len - (hdr_len & 3) + FCS_LEN;
-
- if (frame_len & ~AR5K_2W_TX_DESC_CTL0_FRAME_LEN)
- return -EINVAL;
-
- tx_ctl->tx_control_0 = frame_len & AR5K_2W_TX_DESC_CTL0_FRAME_LEN;
-
- /* Verify and set buffer length */
-
- /* NB: beacon's BufLen must be a multiple of 4 bytes */
- if(type == AR5K_PKT_TYPE_BEACON)
- pkt_len = roundup(pkt_len, 4);
-
- if (pkt_len & ~AR5K_2W_TX_DESC_CTL1_BUF_LEN)
- return -EINVAL;
-
- tx_ctl->tx_control_1 = pkt_len & AR5K_2W_TX_DESC_CTL1_BUF_LEN;
-
- /*
- * Verify and set header length
- * XXX: I only found that on 5210 code, does it work on 5211 ?
- */
- if (ah->ah_version == AR5K_AR5210) {
- if (hdr_len & ~AR5K_2W_TX_DESC_CTL0_HEADER_LEN)
- return -EINVAL;
- tx_ctl->tx_control_0 |=
- AR5K_REG_SM(hdr_len, AR5K_2W_TX_DESC_CTL0_HEADER_LEN);
- }
-
- /*Diferences between 5210-5211*/
- if (ah->ah_version == AR5K_AR5210) {
- switch (type) {
- case AR5K_PKT_TYPE_BEACON:
- case AR5K_PKT_TYPE_PROBE_RESP:
- frame_type = AR5K_AR5210_TX_DESC_FRAME_TYPE_NO_DELAY;
- case AR5K_PKT_TYPE_PIFS:
- frame_type = AR5K_AR5210_TX_DESC_FRAME_TYPE_PIFS;
- default:
- frame_type = type /*<< 2 ?*/;
- }
-
- tx_ctl->tx_control_0 |=
- AR5K_REG_SM(frame_type, AR5K_2W_TX_DESC_CTL0_FRAME_TYPE) |
- AR5K_REG_SM(tx_rate0, AR5K_2W_TX_DESC_CTL0_XMIT_RATE);
- } else {
- tx_ctl->tx_control_0 |=
- AR5K_REG_SM(tx_rate0, AR5K_2W_TX_DESC_CTL0_XMIT_RATE) |
- AR5K_REG_SM(antenna_mode, AR5K_2W_TX_DESC_CTL0_ANT_MODE_XMIT);
- tx_ctl->tx_control_1 |=
- AR5K_REG_SM(type, AR5K_2W_TX_DESC_CTL1_FRAME_TYPE);
- }
-#define _TX_FLAGS(_c, _flag) \
- if (flags & AR5K_TXDESC_##_flag) \
- tx_ctl->tx_control_##_c |= \
- AR5K_2W_TX_DESC_CTL##_c##_##_flag
-
- _TX_FLAGS(0, CLRDMASK);
- _TX_FLAGS(0, VEOL);
- _TX_FLAGS(0, INTREQ);
- _TX_FLAGS(0, RTSENA);
- _TX_FLAGS(1, NOACK);
-
-#undef _TX_FLAGS
-
- /*
- * WEP crap
- */
- if (key_index != AR5K_TXKEYIX_INVALID) {
- tx_ctl->tx_control_0 |=
- AR5K_2W_TX_DESC_CTL0_ENCRYPT_KEY_VALID;
- tx_ctl->tx_control_1 |=
- AR5K_REG_SM(key_index,
- AR5K_2W_TX_DESC_CTL1_ENCRYPT_KEY_INDEX);
- }
-
- /*
- * RTS/CTS Duration [5210 ?]
- */
- if ((ah->ah_version == AR5K_AR5210) &&
- (flags & (AR5K_TXDESC_RTSENA | AR5K_TXDESC_CTSENA)))
- tx_ctl->tx_control_1 |= rtscts_duration &
- AR5K_2W_TX_DESC_CTL1_RTS_DURATION;
-
- return 0;
-}
-
-/*
- * Initialize the 4-word tx descriptor on 5212
- */
-static int ath5k_hw_setup_4word_tx_desc(struct ath5k_hw *ah,
- struct ath5k_desc *desc, unsigned int pkt_len, unsigned int hdr_len,
- enum ath5k_pkt_type type, unsigned int tx_power, unsigned int tx_rate0,
- unsigned int tx_tries0, unsigned int key_index,
- unsigned int antenna_mode, unsigned int flags, unsigned int rtscts_rate,
- unsigned int rtscts_duration)
-{
- struct ath5k_hw_4w_tx_ctl *tx_ctl;
- unsigned int frame_len;
-
- ATH5K_TRACE(ah->ah_sc);
- tx_ctl = &desc->ud.ds_tx5212.tx_ctl;
-
- /*
- * Validate input
- * - Zero retries don't make sense.
- * - A zero rate will put the HW into a mode where it continously sends
- * noise on the channel, so it is important to avoid this.
- */
- if (unlikely(tx_tries0 == 0)) {
- ATH5K_ERR(ah->ah_sc, "zero retries\n");
- WARN_ON(1);
- return -EINVAL;
- }
- if (unlikely(tx_rate0 == 0)) {
- ATH5K_ERR(ah->ah_sc, "zero rate\n");
- WARN_ON(1);
- return -EINVAL;
- }
-
- /* Clear descriptor */
- memset(&desc->ud.ds_tx5212, 0, sizeof(struct ath5k_hw_5212_tx_desc));
-
- /* Setup control descriptor */
-
- /* Verify and set frame length */
-
- /* remove padding we might have added before */
- frame_len = pkt_len - (hdr_len & 3) + FCS_LEN;
-
- if (frame_len & ~AR5K_4W_TX_DESC_CTL0_FRAME_LEN)
- return -EINVAL;
-
- tx_ctl->tx_control_0 = frame_len & AR5K_4W_TX_DESC_CTL0_FRAME_LEN;
-
- /* Verify and set buffer length */
-
- /* NB: beacon's BufLen must be a multiple of 4 bytes */
- if(type == AR5K_PKT_TYPE_BEACON)
- pkt_len = roundup(pkt_len, 4);
-
- if (pkt_len & ~AR5K_4W_TX_DESC_CTL1_BUF_LEN)
- return -EINVAL;
-
- tx_ctl->tx_control_1 = pkt_len & AR5K_4W_TX_DESC_CTL1_BUF_LEN;
-
- tx_ctl->tx_control_0 |=
- AR5K_REG_SM(tx_power, AR5K_4W_TX_DESC_CTL0_XMIT_POWER) |
- AR5K_REG_SM(antenna_mode, AR5K_4W_TX_DESC_CTL0_ANT_MODE_XMIT);
- tx_ctl->tx_control_1 |= AR5K_REG_SM(type,
- AR5K_4W_TX_DESC_CTL1_FRAME_TYPE);
- tx_ctl->tx_control_2 = AR5K_REG_SM(tx_tries0 + AR5K_TUNE_HWTXTRIES,
- AR5K_4W_TX_DESC_CTL2_XMIT_TRIES0);
- tx_ctl->tx_control_3 = tx_rate0 & AR5K_4W_TX_DESC_CTL3_XMIT_RATE0;
-
-#define _TX_FLAGS(_c, _flag) \
- if (flags & AR5K_TXDESC_##_flag) \
- tx_ctl->tx_control_##_c |= \
- AR5K_4W_TX_DESC_CTL##_c##_##_flag
-
- _TX_FLAGS(0, CLRDMASK);
- _TX_FLAGS(0, VEOL);
- _TX_FLAGS(0, INTREQ);
- _TX_FLAGS(0, RTSENA);
- _TX_FLAGS(0, CTSENA);
- _TX_FLAGS(1, NOACK);
-
-#undef _TX_FLAGS
-
- /*
- * WEP crap
- */
- if (key_index != AR5K_TXKEYIX_INVALID) {
- tx_ctl->tx_control_0 |= AR5K_4W_TX_DESC_CTL0_ENCRYPT_KEY_VALID;
- tx_ctl->tx_control_1 |= AR5K_REG_SM(key_index,
- AR5K_4W_TX_DESC_CTL1_ENCRYPT_KEY_INDEX);
- }
-
- /*
- * RTS/CTS
- */
- if (flags & (AR5K_TXDESC_RTSENA | AR5K_TXDESC_CTSENA)) {
- if ((flags & AR5K_TXDESC_RTSENA) &&
- (flags & AR5K_TXDESC_CTSENA))
- return -EINVAL;
- tx_ctl->tx_control_2 |= rtscts_duration &
- AR5K_4W_TX_DESC_CTL2_RTS_DURATION;
- tx_ctl->tx_control_3 |= AR5K_REG_SM(rtscts_rate,
- AR5K_4W_TX_DESC_CTL3_RTS_CTS_RATE);
- }
-
- return 0;
-}
-
-/*
- * Initialize a 4-word multirate tx descriptor on 5212
- */
-static int
-ath5k_hw_setup_xr_tx_desc(struct ath5k_hw *ah, struct ath5k_desc *desc,
- unsigned int tx_rate1, u_int tx_tries1, u_int tx_rate2, u_int tx_tries2,
- unsigned int tx_rate3, u_int tx_tries3)
-{
- struct ath5k_hw_4w_tx_ctl *tx_ctl;
-
- /*
- * Rates can be 0 as long as the retry count is 0 too.
- * A zero rate and nonzero retry count will put the HW into a mode where
- * it continously sends noise on the channel, so it is important to
- * avoid this.
- */
- if (unlikely((tx_rate1 == 0 && tx_tries1 != 0) ||
- (tx_rate2 == 0 && tx_tries2 != 0) ||
- (tx_rate3 == 0 && tx_tries3 != 0))) {
- ATH5K_ERR(ah->ah_sc, "zero rate\n");
- WARN_ON(1);
- return -EINVAL;
- }
-
- if (ah->ah_version == AR5K_AR5212) {
- tx_ctl = &desc->ud.ds_tx5212.tx_ctl;
-
-#define _XTX_TRIES(_n) \
- if (tx_tries##_n) { \
- tx_ctl->tx_control_2 |= \
- AR5K_REG_SM(tx_tries##_n, \
- AR5K_4W_TX_DESC_CTL2_XMIT_TRIES##_n); \
- tx_ctl->tx_control_3 |= \
- AR5K_REG_SM(tx_rate##_n, \
- AR5K_4W_TX_DESC_CTL3_XMIT_RATE##_n); \
- }
-
- _XTX_TRIES(1);
- _XTX_TRIES(2);
- _XTX_TRIES(3);
-
-#undef _XTX_TRIES
-
- return 1;
- }
-
- return 0;
-}
-
-/*
- * Proccess the tx status descriptor on 5210/5211
- */
-static int ath5k_hw_proc_2word_tx_status(struct ath5k_hw *ah,
- struct ath5k_desc *desc, struct ath5k_tx_status *ts)
-{
- struct ath5k_hw_2w_tx_ctl *tx_ctl;
- struct ath5k_hw_tx_status *tx_status;
-
- ATH5K_TRACE(ah->ah_sc);
-
- tx_ctl = &desc->ud.ds_tx5210.tx_ctl;
- tx_status = &desc->ud.ds_tx5210.tx_stat;
-
- /* No frame has been send or error */
- if (unlikely((tx_status->tx_status_1 & AR5K_DESC_TX_STATUS1_DONE) == 0))
- return -EINPROGRESS;
-
- /*
- * Get descriptor status
- */
- ts->ts_tstamp = AR5K_REG_MS(tx_status->tx_status_0,
- AR5K_DESC_TX_STATUS0_SEND_TIMESTAMP);
- ts->ts_shortretry = AR5K_REG_MS(tx_status->tx_status_0,
- AR5K_DESC_TX_STATUS0_SHORT_RETRY_COUNT);
- ts->ts_longretry = AR5K_REG_MS(tx_status->tx_status_0,
- AR5K_DESC_TX_STATUS0_LONG_RETRY_COUNT);
- /*TODO: ts->ts_virtcol + test*/
- ts->ts_seqnum = AR5K_REG_MS(tx_status->tx_status_1,
- AR5K_DESC_TX_STATUS1_SEQ_NUM);
- ts->ts_rssi = AR5K_REG_MS(tx_status->tx_status_1,
- AR5K_DESC_TX_STATUS1_ACK_SIG_STRENGTH);
- ts->ts_antenna = 1;
- ts->ts_status = 0;
- ts->ts_rate = AR5K_REG_MS(tx_ctl->tx_control_0,
- AR5K_2W_TX_DESC_CTL0_XMIT_RATE);
-
- if ((tx_status->tx_status_0 & AR5K_DESC_TX_STATUS0_FRAME_XMIT_OK) == 0){
- if (tx_status->tx_status_0 &
- AR5K_DESC_TX_STATUS0_EXCESSIVE_RETRIES)
- ts->ts_status |= AR5K_TXERR_XRETRY;
-
- if (tx_status->tx_status_0 & AR5K_DESC_TX_STATUS0_FIFO_UNDERRUN)
- ts->ts_status |= AR5K_TXERR_FIFO;
-
- if (tx_status->tx_status_0 & AR5K_DESC_TX_STATUS0_FILTERED)
- ts->ts_status |= AR5K_TXERR_FILT;
- }
-
- return 0;
-}
-
-/*
- * Proccess a tx descriptor on 5212
- */
-static int ath5k_hw_proc_4word_tx_status(struct ath5k_hw *ah,
- struct ath5k_desc *desc, struct ath5k_tx_status *ts)
-{
- struct ath5k_hw_4w_tx_ctl *tx_ctl;
- struct ath5k_hw_tx_status *tx_status;
-
- ATH5K_TRACE(ah->ah_sc);
-
- tx_ctl = &desc->ud.ds_tx5212.tx_ctl;
- tx_status = &desc->ud.ds_tx5212.tx_stat;
-
- /* No frame has been send or error */
- if (unlikely((tx_status->tx_status_1 & AR5K_DESC_TX_STATUS1_DONE) == 0))
- return -EINPROGRESS;
-
- /*
- * Get descriptor status
- */
- ts->ts_tstamp = AR5K_REG_MS(tx_status->tx_status_0,
- AR5K_DESC_TX_STATUS0_SEND_TIMESTAMP);
- ts->ts_shortretry = AR5K_REG_MS(tx_status->tx_status_0,
- AR5K_DESC_TX_STATUS0_SHORT_RETRY_COUNT);
- ts->ts_longretry = AR5K_REG_MS(tx_status->tx_status_0,
- AR5K_DESC_TX_STATUS0_LONG_RETRY_COUNT);
- ts->ts_seqnum = AR5K_REG_MS(tx_status->tx_status_1,
- AR5K_DESC_TX_STATUS1_SEQ_NUM);
- ts->ts_rssi = AR5K_REG_MS(tx_status->tx_status_1,
- AR5K_DESC_TX_STATUS1_ACK_SIG_STRENGTH);
- ts->ts_antenna = (tx_status->tx_status_1 &
- AR5K_DESC_TX_STATUS1_XMIT_ANTENNA) ? 2 : 1;
- ts->ts_status = 0;
-
- switch (AR5K_REG_MS(tx_status->tx_status_1,
- AR5K_DESC_TX_STATUS1_FINAL_TS_INDEX)) {
- case 0:
- ts->ts_rate = tx_ctl->tx_control_3 &
- AR5K_4W_TX_DESC_CTL3_XMIT_RATE0;
- break;
- case 1:
- ts->ts_rate = AR5K_REG_MS(tx_ctl->tx_control_3,
- AR5K_4W_TX_DESC_CTL3_XMIT_RATE1);
- ts->ts_longretry += AR5K_REG_MS(tx_ctl->tx_control_2,
- AR5K_4W_TX_DESC_CTL2_XMIT_TRIES1);
- break;
- case 2:
- ts->ts_rate = AR5K_REG_MS(tx_ctl->tx_control_3,
- AR5K_4W_TX_DESC_CTL3_XMIT_RATE2);
- ts->ts_longretry += AR5K_REG_MS(tx_ctl->tx_control_2,
- AR5K_4W_TX_DESC_CTL2_XMIT_TRIES2);
- break;
- case 3:
- ts->ts_rate = AR5K_REG_MS(tx_ctl->tx_control_3,
- AR5K_4W_TX_DESC_CTL3_XMIT_RATE3);
- ts->ts_longretry += AR5K_REG_MS(tx_ctl->tx_control_2,
- AR5K_4W_TX_DESC_CTL2_XMIT_TRIES3);
- break;
- }
-
- if ((tx_status->tx_status_0 & AR5K_DESC_TX_STATUS0_FRAME_XMIT_OK) == 0){
- if (tx_status->tx_status_0 &
- AR5K_DESC_TX_STATUS0_EXCESSIVE_RETRIES)
- ts->ts_status |= AR5K_TXERR_XRETRY;
-
- if (tx_status->tx_status_0 & AR5K_DESC_TX_STATUS0_FIFO_UNDERRUN)
- ts->ts_status |= AR5K_TXERR_FIFO;
-
- if (tx_status->tx_status_0 & AR5K_DESC_TX_STATUS0_FILTERED)
- ts->ts_status |= AR5K_TXERR_FILT;
- }
-
- return 0;
-}
-
-/*
- * RX Descriptor
- */
-
-/*
- * Initialize an rx descriptor
- */
-int ath5k_hw_setup_rx_desc(struct ath5k_hw *ah, struct ath5k_desc *desc,
- u32 size, unsigned int flags)
-{
- struct ath5k_hw_rx_ctl *rx_ctl;
-
- ATH5K_TRACE(ah->ah_sc);
- rx_ctl = &desc->ud.ds_rx.rx_ctl;
-
- /*
- * Clear the descriptor
- * If we don't clean the status descriptor,
- * while scanning we get too many results,
- * most of them virtual, after some secs
- * of scanning system hangs. M.F.
- */
- memset(&desc->ud.ds_rx, 0, sizeof(struct ath5k_hw_all_rx_desc));
-
- /* Setup descriptor */
- rx_ctl->rx_control_1 = size & AR5K_DESC_RX_CTL1_BUF_LEN;
- if (unlikely(rx_ctl->rx_control_1 != size))
- return -EINVAL;
-
- if (flags & AR5K_RXDESC_INTREQ)
- rx_ctl->rx_control_1 |= AR5K_DESC_RX_CTL1_INTREQ;
-
- return 0;
-}
-
-/*
- * Proccess the rx status descriptor on 5210/5211
- */
-static int ath5k_hw_proc_5210_rx_status(struct ath5k_hw *ah,
- struct ath5k_desc *desc, struct ath5k_rx_status *rs)
-{
- struct ath5k_hw_rx_status *rx_status;
-
- rx_status = &desc->ud.ds_rx.u.rx_stat;
-
- /* No frame received / not ready */
- if (unlikely((rx_status->rx_status_1 & AR5K_5210_RX_DESC_STATUS1_DONE)
- == 0))
- return -EINPROGRESS;
-
- /*
- * Frame receive status
- */
- rs->rs_datalen = rx_status->rx_status_0 &
- AR5K_5210_RX_DESC_STATUS0_DATA_LEN;
- rs->rs_rssi = AR5K_REG_MS(rx_status->rx_status_0,
- AR5K_5210_RX_DESC_STATUS0_RECEIVE_SIGNAL);
- rs->rs_rate = AR5K_REG_MS(rx_status->rx_status_0,
- AR5K_5210_RX_DESC_STATUS0_RECEIVE_RATE);
- rs->rs_antenna = rx_status->rx_status_0 &
- AR5K_5210_RX_DESC_STATUS0_RECEIVE_ANTENNA;
- rs->rs_more = rx_status->rx_status_0 &
- AR5K_5210_RX_DESC_STATUS0_MORE;
- /* TODO: this timestamp is 13 bit, later on we assume 15 bit */
- rs->rs_tstamp = AR5K_REG_MS(rx_status->rx_status_1,
- AR5K_5210_RX_DESC_STATUS1_RECEIVE_TIMESTAMP);
- rs->rs_status = 0;
- rs->rs_phyerr = 0;
-
- /*
- * Key table status
- */
- if (rx_status->rx_status_1 & AR5K_5210_RX_DESC_STATUS1_KEY_INDEX_VALID)
- rs->rs_keyix = AR5K_REG_MS(rx_status->rx_status_1,
- AR5K_5210_RX_DESC_STATUS1_KEY_INDEX);
- else
- rs->rs_keyix = AR5K_RXKEYIX_INVALID;
-
- /*
- * Receive/descriptor errors
- */
- if ((rx_status->rx_status_1 &
- AR5K_5210_RX_DESC_STATUS1_FRAME_RECEIVE_OK) == 0) {
- if (rx_status->rx_status_1 &
- AR5K_5210_RX_DESC_STATUS1_CRC_ERROR)
- rs->rs_status |= AR5K_RXERR_CRC;
-
- if (rx_status->rx_status_1 &
- AR5K_5210_RX_DESC_STATUS1_FIFO_OVERRUN)
- rs->rs_status |= AR5K_RXERR_FIFO;
-
- if (rx_status->rx_status_1 &
- AR5K_5210_RX_DESC_STATUS1_PHY_ERROR) {
- rs->rs_status |= AR5K_RXERR_PHY;
- rs->rs_phyerr |= AR5K_REG_MS(rx_status->rx_status_1,
- AR5K_5210_RX_DESC_STATUS1_PHY_ERROR);
- }
-
- if (rx_status->rx_status_1 &
- AR5K_5210_RX_DESC_STATUS1_DECRYPT_CRC_ERROR)
- rs->rs_status |= AR5K_RXERR_DECRYPT;
- }
-
- return 0;
-}
-
-/*
- * Proccess the rx status descriptor on 5212
- */
-static int ath5k_hw_proc_5212_rx_status(struct ath5k_hw *ah,
- struct ath5k_desc *desc, struct ath5k_rx_status *rs)
-{
- struct ath5k_hw_rx_status *rx_status;
- struct ath5k_hw_rx_error *rx_err;
-
- ATH5K_TRACE(ah->ah_sc);
- rx_status = &desc->ud.ds_rx.u.rx_stat;
-
- /* Overlay on error */
- rx_err = &desc->ud.ds_rx.u.rx_err;
-
- /* No frame received / not ready */
- if (unlikely((rx_status->rx_status_1 & AR5K_5212_RX_DESC_STATUS1_DONE)
- == 0))
- return -EINPROGRESS;
-
- /*
- * Frame receive status
- */
- rs->rs_datalen = rx_status->rx_status_0 &
- AR5K_5212_RX_DESC_STATUS0_DATA_LEN;
- rs->rs_rssi = AR5K_REG_MS(rx_status->rx_status_0,
- AR5K_5212_RX_DESC_STATUS0_RECEIVE_SIGNAL);
- rs->rs_rate = AR5K_REG_MS(rx_status->rx_status_0,
- AR5K_5212_RX_DESC_STATUS0_RECEIVE_RATE);
- rs->rs_antenna = rx_status->rx_status_0 &
- AR5K_5212_RX_DESC_STATUS0_RECEIVE_ANTENNA;
- rs->rs_more = rx_status->rx_status_0 &
- AR5K_5212_RX_DESC_STATUS0_MORE;
- rs->rs_tstamp = AR5K_REG_MS(rx_status->rx_status_1,
- AR5K_5212_RX_DESC_STATUS1_RECEIVE_TIMESTAMP);
- rs->rs_status = 0;
- rs->rs_phyerr = 0;
-
- /*
- * Key table status
- */
- if (rx_status->rx_status_1 & AR5K_5212_RX_DESC_STATUS1_KEY_INDEX_VALID)
- rs->rs_keyix = AR5K_REG_MS(rx_status->rx_status_1,
- AR5K_5212_RX_DESC_STATUS1_KEY_INDEX);
- else
- rs->rs_keyix = AR5K_RXKEYIX_INVALID;
-
- /*
- * Receive/descriptor errors
- */
- if ((rx_status->rx_status_1 &
- AR5K_5212_RX_DESC_STATUS1_FRAME_RECEIVE_OK) == 0) {
- if (rx_status->rx_status_1 &
- AR5K_5212_RX_DESC_STATUS1_CRC_ERROR)
- rs->rs_status |= AR5K_RXERR_CRC;
-
- if (rx_status->rx_status_1 &
- AR5K_5212_RX_DESC_STATUS1_PHY_ERROR) {
- rs->rs_status |= AR5K_RXERR_PHY;
- rs->rs_phyerr |= AR5K_REG_MS(rx_err->rx_error_1,
- AR5K_RX_DESC_ERROR1_PHY_ERROR_CODE);
- }
-
- if (rx_status->rx_status_1 &
- AR5K_5212_RX_DESC_STATUS1_DECRYPT_CRC_ERROR)
- rs->rs_status |= AR5K_RXERR_DECRYPT;
-
- if (rx_status->rx_status_1 &
- AR5K_5212_RX_DESC_STATUS1_MIC_ERROR)
- rs->rs_status |= AR5K_RXERR_MIC;
- }
-
- return 0;
-}
-
-
-/****************\
- GPIO Functions
-\****************/
-
-/*
- * Set led state
- */
-void ath5k_hw_set_ledstate(struct ath5k_hw *ah, unsigned int state)
-{
- u32 led;
- /*5210 has different led mode handling*/
- u32 led_5210;
-
- ATH5K_TRACE(ah->ah_sc);
-
- /*Reset led status*/
- if (ah->ah_version != AR5K_AR5210)
- AR5K_REG_DISABLE_BITS(ah, AR5K_PCICFG,
- AR5K_PCICFG_LEDMODE | AR5K_PCICFG_LED);
- else
- AR5K_REG_DISABLE_BITS(ah, AR5K_PCICFG, AR5K_PCICFG_LED);
-
- /*
- * Some blinking values, define at your wish
- */
- switch (state) {
- case AR5K_LED_SCAN:
- case AR5K_LED_AUTH:
- led = AR5K_PCICFG_LEDMODE_PROP | AR5K_PCICFG_LED_PEND;
- led_5210 = AR5K_PCICFG_LED_PEND | AR5K_PCICFG_LED_BCTL;
- break;
-
- case AR5K_LED_INIT:
- led = AR5K_PCICFG_LEDMODE_PROP | AR5K_PCICFG_LED_NONE;
- led_5210 = AR5K_PCICFG_LED_PEND;
- break;
-
- case AR5K_LED_ASSOC:
- case AR5K_LED_RUN:
- led = AR5K_PCICFG_LEDMODE_PROP | AR5K_PCICFG_LED_ASSOC;
- led_5210 = AR5K_PCICFG_LED_ASSOC;
- break;
-
- default:
- led = AR5K_PCICFG_LEDMODE_PROM | AR5K_PCICFG_LED_NONE;
- led_5210 = AR5K_PCICFG_LED_PEND;
- break;
- }
-
- /*Write new status to the register*/
- if (ah->ah_version != AR5K_AR5210)
- AR5K_REG_ENABLE_BITS(ah, AR5K_PCICFG, led);
- else
- AR5K_REG_ENABLE_BITS(ah, AR5K_PCICFG, led_5210);
-}
-
-/*
- * Set GPIO outputs
- */
-int ath5k_hw_set_gpio_output(struct ath5k_hw *ah, u32 gpio)
-{
- ATH5K_TRACE(ah->ah_sc);
- if (gpio > AR5K_NUM_GPIO)
- return -EINVAL;
-
- ath5k_hw_reg_write(ah, (ath5k_hw_reg_read(ah, AR5K_GPIOCR) &~
- AR5K_GPIOCR_OUT(gpio)) | AR5K_GPIOCR_OUT(gpio), AR5K_GPIOCR);
-
- return 0;
-}
-
-/*
- * Set GPIO inputs
- */
-int ath5k_hw_set_gpio_input(struct ath5k_hw *ah, u32 gpio)
-{
- ATH5K_TRACE(ah->ah_sc);
- if (gpio > AR5K_NUM_GPIO)
- return -EINVAL;
-
- ath5k_hw_reg_write(ah, (ath5k_hw_reg_read(ah, AR5K_GPIOCR) &~
- AR5K_GPIOCR_OUT(gpio)) | AR5K_GPIOCR_IN(gpio), AR5K_GPIOCR);
-
- return 0;
-}
-
-/*
- * Get GPIO state
- */
-u32 ath5k_hw_get_gpio(struct ath5k_hw *ah, u32 gpio)
-{
- ATH5K_TRACE(ah->ah_sc);
- if (gpio > AR5K_NUM_GPIO)
- return 0xffffffff;
-
- /* GPIO input magic */
- return ((ath5k_hw_reg_read(ah, AR5K_GPIODI) & AR5K_GPIODI_M) >> gpio) &
- 0x1;
-}
-
-/*
- * Set GPIO state
- */
-int ath5k_hw_set_gpio(struct ath5k_hw *ah, u32 gpio, u32 val)
-{
- u32 data;
- ATH5K_TRACE(ah->ah_sc);
-
- if (gpio > AR5K_NUM_GPIO)
- return -EINVAL;
-
- /* GPIO output magic */
- data = ath5k_hw_reg_read(ah, AR5K_GPIODO);
-
- data &= ~(1 << gpio);
- data |= (val & 1) << gpio;
-
- ath5k_hw_reg_write(ah, data, AR5K_GPIODO);
-
- return 0;
-}
-
-/*
- * Initialize the GPIO interrupt (RFKill switch)
- */
-void ath5k_hw_set_gpio_intr(struct ath5k_hw *ah, unsigned int gpio,
- u32 interrupt_level)
-{
- u32 data;
-
- ATH5K_TRACE(ah->ah_sc);
- if (gpio > AR5K_NUM_GPIO)
- return;
-
- /*
- * Set the GPIO interrupt
- */
- data = (ath5k_hw_reg_read(ah, AR5K_GPIOCR) &
- ~(AR5K_GPIOCR_INT_SEL(gpio) | AR5K_GPIOCR_INT_SELH |
- AR5K_GPIOCR_INT_ENA | AR5K_GPIOCR_OUT(gpio))) |
- (AR5K_GPIOCR_INT_SEL(gpio) | AR5K_GPIOCR_INT_ENA);
-
- ath5k_hw_reg_write(ah, interrupt_level ? data :
- (data | AR5K_GPIOCR_INT_SELH), AR5K_GPIOCR);
-
- ah->ah_imr |= AR5K_IMR_GPIO;
-
- /* Enable GPIO interrupts */
- AR5K_REG_ENABLE_BITS(ah, AR5K_PIMR, AR5K_IMR_GPIO);
-}
-
-
-
-
-/****************\
- Misc functions
-\****************/
-
-int ath5k_hw_get_capability(struct ath5k_hw *ah,
- enum ath5k_capability_type cap_type,
- u32 capability, u32 *result)
-{
- ATH5K_TRACE(ah->ah_sc);
-
- switch (cap_type) {
- case AR5K_CAP_NUM_TXQUEUES:
- if (result) {
- if (ah->ah_version == AR5K_AR5210)
- *result = AR5K_NUM_TX_QUEUES_NOQCU;
- else
- *result = AR5K_NUM_TX_QUEUES;
- goto yes;
- }
- case AR5K_CAP_VEOL:
- goto yes;
- case AR5K_CAP_COMPRESSION:
- if (ah->ah_version == AR5K_AR5212)
- goto yes;
- else
- goto no;
- case AR5K_CAP_BURST:
- goto yes;
- case AR5K_CAP_TPC:
- goto yes;
- case AR5K_CAP_BSSIDMASK:
- if (ah->ah_version == AR5K_AR5212)
- goto yes;
- else
- goto no;
- case AR5K_CAP_XR:
- if (ah->ah_version == AR5K_AR5212)
- goto yes;
- else
- goto no;
- default:
- goto no;
- }
-
-no:
- return -EINVAL;
-yes:
- return 0;
-}
-
-static int ath5k_hw_enable_pspoll(struct ath5k_hw *ah, u8 *bssid,
- u16 assoc_id)
-{
- ATH5K_TRACE(ah->ah_sc);
-
- if (ah->ah_version == AR5K_AR5210) {
- AR5K_REG_DISABLE_BITS(ah, AR5K_STA_ID1,
- AR5K_STA_ID1_NO_PSPOLL | AR5K_STA_ID1_DEFAULT_ANTENNA);
- return 0;
- }
-
- return -EIO;
-}
-
-static int ath5k_hw_disable_pspoll(struct ath5k_hw *ah)
-{
- ATH5K_TRACE(ah->ah_sc);
-
- if (ah->ah_version == AR5K_AR5210) {
- AR5K_REG_ENABLE_BITS(ah, AR5K_STA_ID1,
- AR5K_STA_ID1_NO_PSPOLL | AR5K_STA_ID1_DEFAULT_ANTENNA);
- return 0;
- }
-
- return -EIO;
-}