Adding upstream version 6.1.76.upstream/6.1.76

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 434 insertions, 0 deletions

diff --git a/drivers/net/wireless/ralink/rt2x00/rt2x00lib.h b/drivers/net/wireless/ralink/rt2x00/rt2x00lib.h
new file mode 100644
index 000000000..2f1385baa
--- /dev/null
+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00lib.h
@@ -0,0 +1,434 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+	Copyright (C) 2004 - 2009 Ivo van Doorn <IvDoorn@gmail.com>
+	Copyright (C) 2004 - 2009 Gertjan van Wingerde <gwingerde@gmail.com>
+	<http://rt2x00.serialmonkey.com>
+
+ */
+
+/*
+	Module: rt2x00lib
+	Abstract: Data structures and definitions for the rt2x00lib module.
+ */
+
+#ifndef RT2X00LIB_H
+#define RT2X00LIB_H
+
+/*
+ * Interval defines
+ */
+#define WATCHDOG_INTERVAL	round_jiffies_relative(HZ)
+#define LINK_TUNE_SECONDS	1
+#define LINK_TUNE_INTERVAL	round_jiffies_relative(LINK_TUNE_SECONDS * HZ)
+#define AGC_SECONDS		4
+#define VCO_SECONDS		10
+
+/*
+ * rt2x00_rate: Per rate device information
+ */
+struct rt2x00_rate {
+	unsigned short flags;
+#define DEV_RATE_CCK			0x0001
+#define DEV_RATE_OFDM			0x0002
+#define DEV_RATE_SHORT_PREAMBLE		0x0004
+
+	unsigned short bitrate; /* In 100kbit/s */
+	unsigned short ratemask;
+
+	unsigned short plcp;
+	unsigned short mcs;
+};
+
+extern const struct rt2x00_rate rt2x00_supported_rates[12];
+
+static inline const struct rt2x00_rate *rt2x00_get_rate(const u16 hw_value)
+{
+	return &rt2x00_supported_rates[hw_value & 0xff];
+}
+
+#define RATE_MCS(__mode, __mcs) \
+	((((__mode) & 0x00ff) << 8) | ((__mcs) & 0x00ff))
+
+static inline int rt2x00_get_rate_mcs(const u16 mcs_value)
+{
+	return (mcs_value & 0x00ff);
+}
+
+/*
+ * Radio control handlers.
+ */
+int rt2x00lib_enable_radio(struct rt2x00_dev *rt2x00dev);
+void rt2x00lib_disable_radio(struct rt2x00_dev *rt2x00dev);
+
+/*
+ * Initialization handlers.
+ */
+int rt2x00lib_start(struct rt2x00_dev *rt2x00dev);
+void rt2x00lib_stop(struct rt2x00_dev *rt2x00dev);
+
+/*
+ * Configuration handlers.
+ */
+void rt2x00lib_config_intf(struct rt2x00_dev *rt2x00dev,
+			   struct rt2x00_intf *intf,
+			   enum nl80211_iftype type,
+			   const u8 *mac, const u8 *bssid);
+void rt2x00lib_config_erp(struct rt2x00_dev *rt2x00dev,
+			  struct rt2x00_intf *intf,
+			  struct ieee80211_bss_conf *conf,
+			  u32 changed);
+void rt2x00lib_config_antenna(struct rt2x00_dev *rt2x00dev,
+			      struct antenna_setup ant);
+void rt2x00lib_config(struct rt2x00_dev *rt2x00dev,
+		      struct ieee80211_conf *conf,
+		      const unsigned int changed_flags);
+
+/**
+ * DOC: Queue handlers
+ */
+
+/**
+ * rt2x00queue_alloc_rxskb - allocate a skb for RX purposes.
+ * @entry: The entry for which the skb will be applicable.
+ */
+struct sk_buff *rt2x00queue_alloc_rxskb(struct queue_entry *entry, gfp_t gfp);
+
+/**
+ * rt2x00queue_free_skb - free a skb
+ * @entry: The entry for which the skb will be applicable.
+ */
+void rt2x00queue_free_skb(struct queue_entry *entry);
+
+/**
+ * rt2x00queue_align_frame - Align 802.11 frame to 4-byte boundary
+ * @skb: The skb to align
+ *
+ * Align the start of the 802.11 frame to a 4-byte boundary, this could
+ * mean the payload is not aligned properly though.
+ */
+void rt2x00queue_align_frame(struct sk_buff *skb);
+
+/**
+ * rt2x00queue_insert_l2pad - Align 802.11 header & payload to 4-byte boundary
+ * @skb: The skb to align
+ * @header_length: Length of 802.11 header
+ *
+ * Apply L2 padding to align both header and payload to 4-byte boundary
+ */
+void rt2x00queue_insert_l2pad(struct sk_buff *skb, unsigned int header_length);
+
+/**
+ * rt2x00queue_insert_l2pad - Remove L2 padding from 802.11 frame
+ * @skb: The skb to align
+ * @header_length: Length of 802.11 header
+ *
+ * Remove L2 padding used to align both header and payload to 4-byte boundary,
+ * by removing the L2 padding the header will no longer be 4-byte aligned.
+ */
+void rt2x00queue_remove_l2pad(struct sk_buff *skb, unsigned int header_length);
+
+/**
+ * rt2x00queue_write_tx_frame - Write TX frame to hardware
+ * @queue: Queue over which the frame should be send
+ * @skb: The skb to send
+ * @local: frame is not from mac80211
+ */
+int rt2x00queue_write_tx_frame(struct data_queue *queue, struct sk_buff *skb,
+			       struct ieee80211_sta *sta, bool local);
+
+/**
+ * rt2x00queue_update_beacon - Send new beacon from mac80211
+ *	to hardware. Handles locking by itself (mutex).
+ * @rt2x00dev: Pointer to &struct rt2x00_dev.
+ * @vif: Interface for which the beacon should be updated.
+ */
+int rt2x00queue_update_beacon(struct rt2x00_dev *rt2x00dev,
+			      struct ieee80211_vif *vif);
+
+/**
+ * rt2x00queue_update_beacon_locked - Send new beacon from mac80211
+ *	to hardware. Caller needs to ensure locking.
+ * @rt2x00dev: Pointer to &struct rt2x00_dev.
+ * @vif: Interface for which the beacon should be updated.
+ */
+int rt2x00queue_update_beacon_locked(struct rt2x00_dev *rt2x00dev,
+				     struct ieee80211_vif *vif);
+
+/**
+ * rt2x00queue_clear_beacon - Clear beacon in hardware
+ * @rt2x00dev: Pointer to &struct rt2x00_dev.
+ * @vif: Interface for which the beacon should be updated.
+ */
+int rt2x00queue_clear_beacon(struct rt2x00_dev *rt2x00dev,
+			     struct ieee80211_vif *vif);
+
+/**
+ * rt2x00queue_index_inc - Index incrementation function
+ * @entry: Queue entry (&struct queue_entry) to perform the action on.
+ * @index: Index type (&enum queue_index) to perform the action on.
+ *
+ * This function will increase the requested index on the entry's queue,
+ * it will grab the appropriate locks and handle queue overflow events by
+ * resetting the index to the start of the queue.
+ */
+void rt2x00queue_index_inc(struct queue_entry *entry, enum queue_index index);
+
+/**
+ * rt2x00queue_init_queues - Initialize all data queues
+ * @rt2x00dev: Pointer to &struct rt2x00_dev.
+ *
+ * This function will loop through all available queues to clear all
+ * index numbers and set the queue entry to the correct initialization
+ * state.
+ */
+void rt2x00queue_init_queues(struct rt2x00_dev *rt2x00dev);
+
+int rt2x00queue_initialize(struct rt2x00_dev *rt2x00dev);
+void rt2x00queue_uninitialize(struct rt2x00_dev *rt2x00dev);
+int rt2x00queue_allocate(struct rt2x00_dev *rt2x00dev);
+void rt2x00queue_free(struct rt2x00_dev *rt2x00dev);
+
+/**
+ * rt2x00link_update_stats - Update link statistics from RX frame
+ * @rt2x00dev: Pointer to &struct rt2x00_dev.
+ * @skb: Received frame
+ * @rxdesc: Received frame descriptor
+ *
+ * Update link statistics based on the information from the
+ * received frame descriptor.
+ */
+void rt2x00link_update_stats(struct rt2x00_dev *rt2x00dev,
+			     struct sk_buff *skb,
+			     struct rxdone_entry_desc *rxdesc);
+
+/**
+ * rt2x00link_start_tuner - Start periodic link tuner work
+ * @rt2x00dev: Pointer to &struct rt2x00_dev.
+ *
+ * This start the link tuner periodic work, this work will
+ * be executed periodically until &rt2x00link_stop_tuner has
+ * been called.
+ */
+void rt2x00link_start_tuner(struct rt2x00_dev *rt2x00dev);
+
+/**
+ * rt2x00link_stop_tuner - Stop periodic link tuner work
+ * @rt2x00dev: Pointer to &struct rt2x00_dev.
+ *
+ * After this function completed the link tuner will not
+ * be running until &rt2x00link_start_tuner is called.
+ */
+void rt2x00link_stop_tuner(struct rt2x00_dev *rt2x00dev);
+
+/**
+ * rt2x00link_reset_tuner - Reset periodic link tuner work
+ * @rt2x00dev: Pointer to &struct rt2x00_dev.
+ * @antenna: Should the antenna tuning also be reset
+ *
+ * The VGC limit configured in the hardware will be reset to 0
+ * which forces the driver to rediscover the correct value for
+ * the current association. This is needed when configuration
+ * options have changed which could drastically change the
+ * SNR level or link quality (i.e. changing the antenna setting).
+ *
+ * Resetting the link tuner will also cause the periodic work counter
+ * to be reset. Any driver which has a fixed limit on the number
+ * of rounds the link tuner is supposed to work will accept the
+ * tuner actions again if this limit was previously reached.
+ *
+ * If @antenna is set to true a the software antenna diversity
+ * tuning will also be reset.
+ */
+void rt2x00link_reset_tuner(struct rt2x00_dev *rt2x00dev, bool antenna);
+
+/**
+ * rt2x00link_start_watchdog - Start periodic watchdog monitoring
+ * @rt2x00dev: Pointer to &struct rt2x00_dev.
+ *
+ * This start the watchdog periodic work, this work will
+ *be executed periodically until &rt2x00link_stop_watchdog has
+ * been called.
+ */
+void rt2x00link_start_watchdog(struct rt2x00_dev *rt2x00dev);
+
+/**
+ * rt2x00link_stop_watchdog - Stop periodic watchdog monitoring
+ * @rt2x00dev: Pointer to &struct rt2x00_dev.
+ *
+ * After this function completed the watchdog monitoring will not
+ * be running until &rt2x00link_start_watchdog is called.
+ */
+void rt2x00link_stop_watchdog(struct rt2x00_dev *rt2x00dev);
+
+/**
+ * rt2x00link_register - Initialize link tuning & watchdog functionality
+ * @rt2x00dev: Pointer to &struct rt2x00_dev.
+ *
+ * Initialize work structure and all link tuning and watchdog related
+ * parameters. This will not start the periodic work itself.
+ */
+void rt2x00link_register(struct rt2x00_dev *rt2x00dev);
+
+/*
+ * Firmware handlers.
+ */
+#ifdef CONFIG_RT2X00_LIB_FIRMWARE
+int rt2x00lib_load_firmware(struct rt2x00_dev *rt2x00dev);
+void rt2x00lib_free_firmware(struct rt2x00_dev *rt2x00dev);
+#else
+static inline int rt2x00lib_load_firmware(struct rt2x00_dev *rt2x00dev)
+{
+	return 0;
+}
+static inline void rt2x00lib_free_firmware(struct rt2x00_dev *rt2x00dev)
+{
+}
+#endif /* CONFIG_RT2X00_LIB_FIRMWARE */
+
+/*
+ * Debugfs handlers.
+ */
+#ifdef CONFIG_RT2X00_LIB_DEBUGFS
+void rt2x00debug_register(struct rt2x00_dev *rt2x00dev);
+void rt2x00debug_deregister(struct rt2x00_dev *rt2x00dev);
+void rt2x00debug_update_crypto(struct rt2x00_dev *rt2x00dev,
+			       struct rxdone_entry_desc *rxdesc);
+#else
+static inline void rt2x00debug_register(struct rt2x00_dev *rt2x00dev)
+{
+}
+
+static inline void rt2x00debug_deregister(struct rt2x00_dev *rt2x00dev)
+{
+}
+
+static inline void rt2x00debug_update_crypto(struct rt2x00_dev *rt2x00dev,
+					     struct rxdone_entry_desc *rxdesc)
+{
+}
+#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
+
+/*
+ * Crypto handlers.
+ */
+#ifdef CONFIG_RT2X00_LIB_CRYPTO
+enum cipher rt2x00crypto_key_to_cipher(struct ieee80211_key_conf *key);
+void rt2x00crypto_create_tx_descriptor(struct rt2x00_dev *rt2x00dev,
+				       struct sk_buff *skb,
+				       struct txentry_desc *txdesc);
+unsigned int rt2x00crypto_tx_overhead(struct rt2x00_dev *rt2x00dev,
+				      struct sk_buff *skb);
+void rt2x00crypto_tx_copy_iv(struct sk_buff *skb,
+			     struct txentry_desc *txdesc);
+void rt2x00crypto_tx_remove_iv(struct sk_buff *skb,
+			       struct txentry_desc *txdesc);
+void rt2x00crypto_tx_insert_iv(struct sk_buff *skb, unsigned int header_length);
+void rt2x00crypto_rx_insert_iv(struct sk_buff *skb,
+			       unsigned int header_length,
+			       struct rxdone_entry_desc *rxdesc);
+#else
+static inline enum cipher rt2x00crypto_key_to_cipher(struct ieee80211_key_conf *key)
+{
+	return CIPHER_NONE;
+}
+
+static inline void rt2x00crypto_create_tx_descriptor(struct rt2x00_dev *rt2x00dev,
+						     struct sk_buff *skb,
+						     struct txentry_desc *txdesc)
+{
+}
+
+static inline unsigned int rt2x00crypto_tx_overhead(struct rt2x00_dev *rt2x00dev,
+						    struct sk_buff *skb)
+{
+	return 0;
+}
+
+static inline void rt2x00crypto_tx_copy_iv(struct sk_buff *skb,
+					   struct txentry_desc *txdesc)
+{
+}
+
+static inline void rt2x00crypto_tx_remove_iv(struct sk_buff *skb,
+					     struct txentry_desc *txdesc)
+{
+}
+
+static inline void rt2x00crypto_tx_insert_iv(struct sk_buff *skb,
+					     unsigned int header_length)
+{
+}
+
+static inline void rt2x00crypto_rx_insert_iv(struct sk_buff *skb,
+					     unsigned int header_length,
+					     struct rxdone_entry_desc *rxdesc)
+{
+}
+#endif /* CONFIG_RT2X00_LIB_CRYPTO */
+
+/*
+ * RFkill handlers.
+ */
+static inline void rt2x00rfkill_register(struct rt2x00_dev *rt2x00dev)
+{
+	if (test_bit(CAPABILITY_HW_BUTTON, &rt2x00dev->cap_flags))
+		wiphy_rfkill_start_polling(rt2x00dev->hw->wiphy);
+}
+
+static inline void rt2x00rfkill_unregister(struct rt2x00_dev *rt2x00dev)
+{
+	if (test_bit(CAPABILITY_HW_BUTTON, &rt2x00dev->cap_flags))
+		wiphy_rfkill_stop_polling(rt2x00dev->hw->wiphy);
+}
+
+/*
+ * LED handlers
+ */
+#ifdef CONFIG_RT2X00_LIB_LEDS
+void rt2x00leds_led_quality(struct rt2x00_dev *rt2x00dev, int rssi);
+void rt2x00led_led_activity(struct rt2x00_dev *rt2x00dev, bool enabled);
+void rt2x00leds_led_assoc(struct rt2x00_dev *rt2x00dev, bool enabled);
+void rt2x00leds_led_radio(struct rt2x00_dev *rt2x00dev, bool enabled);
+void rt2x00leds_register(struct rt2x00_dev *rt2x00dev);
+void rt2x00leds_unregister(struct rt2x00_dev *rt2x00dev);
+void rt2x00leds_suspend(struct rt2x00_dev *rt2x00dev);
+void rt2x00leds_resume(struct rt2x00_dev *rt2x00dev);
+#else
+static inline void rt2x00leds_led_quality(struct rt2x00_dev *rt2x00dev,
+					  int rssi)
+{
+}
+
+static inline void rt2x00led_led_activity(struct rt2x00_dev *rt2x00dev,
+					  bool enabled)
+{
+}
+
+static inline void rt2x00leds_led_assoc(struct rt2x00_dev *rt2x00dev,
+					bool enabled)
+{
+}
+
+static inline void rt2x00leds_led_radio(struct rt2x00_dev *rt2x00dev,
+					bool enabled)
+{
+}
+
+static inline void rt2x00leds_register(struct rt2x00_dev *rt2x00dev)
+{
+}
+
+static inline void rt2x00leds_unregister(struct rt2x00_dev *rt2x00dev)
+{
+}
+
+static inline void rt2x00leds_suspend(struct rt2x00_dev *rt2x00dev)
+{
+}
+
+static inline void rt2x00leds_resume(struct rt2x00_dev *rt2x00dev)
+{
+}
+#endif /* CONFIG_RT2X00_LIB_LEDS */
+
+#endif /* RT2X00LIB_H */