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authorLinus Torvalds <torvalds@linux-foundation.org>2010-05-21 06:04:44 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-21 06:04:44 +0200
commitf8965467f366fd18f01feafb5db10512d7b4422c (patch)
tree3706a9cd779859271ca61b85c63a1bc3f82d626e /drivers/net/wireless/ath/ath5k/ani.h
parentMerge branch 'docs-next' of git://git.lwn.net/linux-2.6 (diff)
parentMerge branch 'master' of /home/davem/src/GIT/linux-2.6/ (diff)
downloadlinux-f8965467f366fd18f01feafb5db10512d7b4422c.tar.xz
linux-f8965467f366fd18f01feafb5db10512d7b4422c.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1674 commits) qlcnic: adding co maintainer ixgbe: add support for active DA cables ixgbe: dcb, do not tag tc_prio_control frames ixgbe: fix ixgbe_tx_is_paused logic ixgbe: always enable vlan strip/insert when DCB is enabled ixgbe: remove some redundant code in setting FCoE FIP filter ixgbe: fix wrong offset to fc_frame_header in ixgbe_fcoe_ddp ixgbe: fix header len when unsplit packet overflows to data buffer ipv6: Never schedule DAD timer on dead address ipv6: Use POSTDAD state ipv6: Use state_lock to protect ifa state ipv6: Replace inet6_ifaddr->dead with state cxgb4: notify upper drivers if the device is already up when they load cxgb4: keep interrupts available when the ports are brought down cxgb4: fix initial addition of MAC address cnic: Return SPQ credit to bnx2x after ring setup and shutdown. cnic: Convert cnic_local_flags to atomic ops. can: Fix SJA1000 command register writes on SMP systems bridge: fix build for CONFIG_SYSFS disabled ARCNET: Limit com20020 PCI ID matches for SOHARD cards ... Fix up various conflicts with pcmcia tree drivers/net/ {pcmcia/3c589_cs.c, wireless/orinoco/orinoco_cs.c and wireless/orinoco/spectrum_cs.c} and feature removal (Documentation/feature-removal-schedule.txt). Also fix a non-content conflict due to pm_qos_requirement getting renamed in the PM tree (now pm_qos_request) in net/mac80211/scan.c
Diffstat (limited to 'drivers/net/wireless/ath/ath5k/ani.h')
-rw-r--r--drivers/net/wireless/ath/ath5k/ani.h104
1 files changed, 104 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath5k/ani.h b/drivers/net/wireless/ath/ath5k/ani.h
new file mode 100644
index 000000000000..55cf26d8522c
--- /dev/null
+++ b/drivers/net/wireless/ath/ath5k/ani.h
@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 2010 Bruno Randolf <br1@einfach.org>
+ *
+ * Permission to use, copy, modify, and/or 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.
+ */
+#ifndef ANI_H
+#define ANI_H
+
+/* these thresholds are relative to the ATH5K_ANI_LISTEN_PERIOD */
+#define ATH5K_ANI_LISTEN_PERIOD 100
+#define ATH5K_ANI_OFDM_TRIG_HIGH 500
+#define ATH5K_ANI_OFDM_TRIG_LOW 200
+#define ATH5K_ANI_CCK_TRIG_HIGH 200
+#define ATH5K_ANI_CCK_TRIG_LOW 100
+
+/* average beacon RSSI thresholds */
+#define ATH5K_ANI_RSSI_THR_HIGH 40
+#define ATH5K_ANI_RSSI_THR_LOW 7
+
+/* maximum availabe levels */
+#define ATH5K_ANI_MAX_FIRSTEP_LVL 2
+#define ATH5K_ANI_MAX_NOISE_IMM_LVL 1
+
+
+/**
+ * enum ath5k_ani_mode - mode for ANI / noise sensitivity
+ *
+ * @ATH5K_ANI_MODE_OFF: Turn ANI off. This can be useful to just stop the ANI
+ * algorithm after it has been on auto mode.
+ * ATH5K_ANI_MODE_MANUAL_LOW: Manually set all immunity parameters to low,
+ * maximizing sensitivity. ANI will not run.
+ * ATH5K_ANI_MODE_MANUAL_HIGH: Manually set all immunity parameters to high,
+ * minimizing sensitivity. ANI will not run.
+ * ATH5K_ANI_MODE_AUTO: Automatically control immunity parameters based on the
+ * amount of OFDM and CCK frame errors (default).
+ */
+enum ath5k_ani_mode {
+ ATH5K_ANI_MODE_OFF = 0,
+ ATH5K_ANI_MODE_MANUAL_LOW = 1,
+ ATH5K_ANI_MODE_MANUAL_HIGH = 2,
+ ATH5K_ANI_MODE_AUTO = 3
+};
+
+
+/**
+ * struct ath5k_ani_state - ANI state and associated counters
+ *
+ * @max_spur_level: the maximum spur level is chip dependent
+ */
+struct ath5k_ani_state {
+ enum ath5k_ani_mode ani_mode;
+
+ /* state */
+ int noise_imm_level;
+ int spur_level;
+ int firstep_level;
+ bool ofdm_weak_sig;
+ bool cck_weak_sig;
+
+ int max_spur_level;
+
+ /* used by the algorithm */
+ unsigned int listen_time;
+ unsigned int ofdm_errors;
+ unsigned int cck_errors;
+
+ /* debug/statistics only: numbers from last ANI calibration */
+ unsigned int pfc_tx;
+ unsigned int pfc_rx;
+ unsigned int pfc_busy;
+ unsigned int pfc_cycles;
+ unsigned int last_listen;
+ unsigned int last_ofdm_errors;
+ unsigned int last_cck_errors;
+ unsigned int sum_ofdm_errors;
+ unsigned int sum_cck_errors;
+};
+
+void ath5k_ani_init(struct ath5k_hw *ah, enum ath5k_ani_mode mode);
+void ath5k_ani_mib_intr(struct ath5k_hw *ah);
+void ath5k_ani_calibration(struct ath5k_hw *ah);
+void ath5k_ani_phy_error_report(struct ath5k_hw *ah,
+ enum ath5k_phy_error_code phyerr);
+
+/* for manual control */
+void ath5k_ani_set_noise_immunity_level(struct ath5k_hw *ah, int level);
+void ath5k_ani_set_spur_immunity_level(struct ath5k_hw *ah, int level);
+void ath5k_ani_set_firstep_level(struct ath5k_hw *ah, int level);
+void ath5k_ani_set_ofdm_weak_signal_detection(struct ath5k_hw *ah, bool on);
+void ath5k_ani_set_cck_weak_signal_detection(struct ath5k_hw *ah, bool on);
+
+void ath5k_ani_print_counters(struct ath5k_hw *ah);
+
+#endif /* ANI_H */