drivers/net/wireless/zd1211rw/zd_mac.h - kernel/msm-4.9 - Gitiles

 /* zd_mac.h
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  */

 #ifndef _ZD_MAC_H
 #define _ZD_MAC_H

 #include <linux/wireless.h>
 #include <linux/kernel.h>
 #include <linux/workqueue.h>
 #include <net/ieee80211.h>
 #include <net/ieee80211softmac.h>

 #include "zd_chip.h"
 #include "zd_netdev.h"

 struct zd_ctrlset {
 	u8     modulation;
 	__le16 tx_length;
 	u8     control;
 	/* stores only the difference to tx_length on ZD1211B */
 	__le16 packet_length;
 	__le16 current_length;
 	u8     service;
 	__le16  next_frame_length;
 } __attribute__((packed));

 #define ZD_CS_RESERVED_SIZE	25

 /* The field modulation of struct zd_ctrlset controls the bit rate, the use
  * of short or long preambles in 802.11b (CCK mode) or the use of 802.11a or
  * 802.11g in OFDM mode.
  *
  * The term zd-rate is used for the combination of the modulation type flag
  * and the "pure" rate value.
  */
 #define ZD_PURE_RATE_MASK       0x0f
 #define ZD_MODULATION_TYPE_MASK 0x10
 #define ZD_RATE_MASK            (ZD_PURE_RATE_MASK|ZD_MODULATION_TYPE_MASK)
 #define ZD_PURE_RATE(modulation) ((modulation) & ZD_PURE_RATE_MASK)
 #define ZD_MODULATION_TYPE(modulation) ((modulation) & ZD_MODULATION_TYPE_MASK)
 #define ZD_RATE(modulation) ((modulation) & ZD_RATE_MASK)

 /* The two possible modulation types. Notify that 802.11b doesn't use the CCK
  * codeing for the 1 and 2 MBit/s rate. We stay with the term here to remain
  * consistent with uses the term at other places.
   */
 #define ZD_CCK                  0x00
 #define ZD_OFDM                 0x10

 /* The ZD1211 firmware uses proprietary encodings of the 802.11b (CCK) rates.
  * For OFDM the PLCP rate encodings are used. We combine these "pure" rates
  * with the modulation type flag and call the resulting values zd-rates.
  */
 #define ZD_CCK_RATE_1M          (ZD_CCK|0x00)
 #define ZD_CCK_RATE_2M          (ZD_CCK|0x01)
 #define ZD_CCK_RATE_5_5M        (ZD_CCK|0x02)
 #define ZD_CCK_RATE_11M         (ZD_CCK|0x03)
 #define ZD_OFDM_RATE_6M         (ZD_OFDM|ZD_OFDM_PLCP_RATE_6M)
 #define ZD_OFDM_RATE_9M         (ZD_OFDM|ZD_OFDM_PLCP_RATE_9M)
 #define ZD_OFDM_RATE_12M        (ZD_OFDM|ZD_OFDM_PLCP_RATE_12M)
 #define ZD_OFDM_RATE_18M        (ZD_OFDM|ZD_OFDM_PLCP_RATE_18M)
 #define ZD_OFDM_RATE_24M        (ZD_OFDM|ZD_OFDM_PLCP_RATE_24M)
 #define ZD_OFDM_RATE_36M        (ZD_OFDM|ZD_OFDM_PLCP_RATE_36M)
 #define ZD_OFDM_RATE_48M        (ZD_OFDM|ZD_OFDM_PLCP_RATE_48M)
 #define ZD_OFDM_RATE_54M        (ZD_OFDM|ZD_OFDM_PLCP_RATE_54M)

 /* The bit 5 of the zd_ctrlset modulation field controls the preamble in CCK
  * mode or the 802.11a/802.11g selection in OFDM mode.
  */
 #define ZD_CCK_PREA_LONG        0x00
 #define ZD_CCK_PREA_SHORT       0x20
 #define ZD_OFDM_MODE_11G        0x00
 #define ZD_OFDM_MODE_11A        0x20

 /* zd_ctrlset control field */
 #define ZD_CS_NEED_RANDOM_BACKOFF	0x01
 #define ZD_CS_MULTICAST			0x02

 #define ZD_CS_FRAME_TYPE_MASK		0x0c
 #define ZD_CS_DATA_FRAME		0x00
 #define ZD_CS_PS_POLL_FRAME		0x04
 #define ZD_CS_MANAGEMENT_FRAME		0x08
 #define ZD_CS_NO_SEQUENCE_CTL_FRAME	0x0c

 #define ZD_CS_WAKE_DESTINATION		0x10
 #define ZD_CS_RTS			0x20
 #define ZD_CS_ENCRYPT			0x40
 #define ZD_CS_SELF_CTS			0x80

 /* Incoming frames are prepended by a PLCP header */
 #define ZD_PLCP_HEADER_SIZE		5

 struct rx_length_info {
 	__le16 length[3];
 	__le16 tag;
 } __attribute__((packed));

 #define RX_LENGTH_INFO_TAG		0x697e

 struct rx_status {
 	u8 signal_quality_cck;
 	/* rssi */
 	u8 signal_strength;
 	u8 signal_quality_ofdm;
 	u8 decryption_type;
 	u8 frame_status;
 } __attribute__((packed));

 /* rx_status field decryption_type */
 #define ZD_RX_NO_WEP	0
 #define ZD_RX_WEP64	1
 #define ZD_RX_TKIP	2
 #define ZD_RX_AES	4
 #define ZD_RX_WEP128	5
 #define ZD_RX_WEP256	6

 /* rx_status field frame_status */
 #define ZD_RX_FRAME_MODULATION_MASK	0x01
 #define ZD_RX_CCK			0x00
 #define ZD_RX_OFDM			0x01

 #define ZD_RX_TIMEOUT_ERROR		0x02
 #define ZD_RX_FIFO_OVERRUN_ERROR	0x04
 #define ZD_RX_DECRYPTION_ERROR		0x08
 #define ZD_RX_CRC32_ERROR		0x10
 #define ZD_RX_NO_ADDR1_MATCH_ERROR	0x20
 #define ZD_RX_CRC16_ERROR		0x40
 #define ZD_RX_ERROR			0x80

 struct housekeeping {
 	struct delayed_work link_led_work;
 };

 #define ZD_MAC_STATS_BUFFER_SIZE 16

 struct zd_mac {
 	struct zd_chip chip;
 	spinlock_t lock;
 	struct net_device *netdev;

 	/* Unlocked reading possible */
 	struct iw_statistics iw_stats;

 	struct housekeeping housekeeping;
 	struct work_struct set_multicast_hash_work;
 	struct zd_mc_hash multicast_hash;
 	struct delayed_work set_rts_cts_work;
 	struct delayed_work set_basic_rates_work;

 	struct tasklet_struct rx_tasklet;
 	struct sk_buff_head rx_queue;

 	unsigned int stats_count;
 	u8 qual_buffer[ZD_MAC_STATS_BUFFER_SIZE];
 	u8 rssi_buffer[ZD_MAC_STATS_BUFFER_SIZE];
 	u8 regdomain;
 	u8 default_regdomain;
 	u8 requested_channel;

 	/* A bitpattern of cr_rates */
 	u16 basic_rates;

 	/* A zd_rate */
 	u8 rts_rate;

 	/* Short preamble (used for RTS/CTS) */
 	unsigned int short_preamble:1;

 	/* flags to indicate update in progress */
 	unsigned int updating_rts_rate:1;
 	unsigned int updating_basic_rates:1;
 };

 static inline struct ieee80211_device *zd_mac_to_ieee80211(struct zd_mac *mac)
 {
 	return zd_netdev_ieee80211(mac->netdev);
 }

 static inline struct zd_mac *zd_netdev_mac(struct net_device *netdev)
 {
 	return ieee80211softmac_priv(netdev);
 }

 static inline struct zd_mac *zd_chip_to_mac(struct zd_chip *chip)
 {
 	return container_of(chip, struct zd_mac, chip);
 }

 static inline struct zd_mac *zd_usb_to_mac(struct zd_usb *usb)
 {
 	return zd_chip_to_mac(zd_usb_to_chip(usb));
 }

 #define zd_mac_dev(mac) (zd_chip_dev(&(mac)->chip))

 int zd_mac_init(struct zd_mac *mac,
                 struct net_device *netdev,
 		struct usb_interface *intf);
 void zd_mac_clear(struct zd_mac *mac);

 int zd_mac_preinit_hw(struct zd_mac *mac);
 int zd_mac_init_hw(struct zd_mac *mac);

 int zd_mac_open(struct net_device *netdev);
 int zd_mac_stop(struct net_device *netdev);
 int zd_mac_set_mac_address(struct net_device *dev, void *p);
 void zd_mac_set_multicast_list(struct net_device *netdev);

 int zd_mac_rx_irq(struct zd_mac *mac, const u8 *buffer, unsigned int length);

 int zd_mac_set_regdomain(struct zd_mac *zd_mac, u8 regdomain);
 u8 zd_mac_get_regdomain(struct zd_mac *zd_mac);

 int zd_mac_request_channel(struct zd_mac *mac, u8 channel);
 u8 zd_mac_get_channel(struct zd_mac *mac);

 int zd_mac_set_mode(struct zd_mac *mac, u32 mode);
 int zd_mac_get_mode(struct zd_mac *mac, u32 *mode);

 int zd_mac_get_range(struct zd_mac *mac, struct iw_range *range);

 struct iw_statistics *zd_mac_get_wireless_stats(struct net_device *ndev);

 #ifdef DEBUG
 void zd_dump_rx_status(const struct rx_status *status);
 #else
 #define zd_dump_rx_status(status)
 #endif /* DEBUG */

 #endif /* _ZD_MAC_H */
	/* zd_mac.h
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License as published by
	* the Free Software Foundation; either version 2 of the License, or
	* (at your option) any later version.
	*
	* This program is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	* GNU General Public License for more details.
	*
	* You should have received a copy of the GNU General Public License
	* along with this program; if not, write to the Free Software
	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	*/

	#ifndef _ZD_MAC_H
	#define _ZD_MAC_H

	#include <linux/wireless.h>
	#include <linux/kernel.h>
	#include <linux/workqueue.h>
	#include <net/ieee80211.h>
	#include <net/ieee80211softmac.h>

	#include "zd_chip.h"
	#include "zd_netdev.h"

	struct zd_ctrlset {
	u8 modulation;
	__le16 tx_length;
	u8 control;
	/* stores only the difference to tx_length on ZD1211B */
	__le16 packet_length;
	__le16 current_length;
	u8 service;
	__le16 next_frame_length;
	} __attribute__((packed));

	#define ZD_CS_RESERVED_SIZE 25

	/* The field modulation of struct zd_ctrlset controls the bit rate, the use
	* of short or long preambles in 802.11b (CCK mode) or the use of 802.11a or
	* 802.11g in OFDM mode.
	*
	* The term zd-rate is used for the combination of the modulation type flag
	* and the "pure" rate value.
	*/
	#define ZD_PURE_RATE_MASK 0x0f
	#define ZD_MODULATION_TYPE_MASK 0x10
	#define ZD_RATE_MASK (ZD_PURE_RATE_MASK\|ZD_MODULATION_TYPE_MASK)
	#define ZD_PURE_RATE(modulation) ((modulation) & ZD_PURE_RATE_MASK)
	#define ZD_MODULATION_TYPE(modulation) ((modulation) & ZD_MODULATION_TYPE_MASK)
	#define ZD_RATE(modulation) ((modulation) & ZD_RATE_MASK)

	/* The two possible modulation types. Notify that 802.11b doesn't use the CCK
	* codeing for the 1 and 2 MBit/s rate. We stay with the term here to remain
	* consistent with uses the term at other places.
	*/
	#define ZD_CCK 0x00
	#define ZD_OFDM 0x10

	/* The ZD1211 firmware uses proprietary encodings of the 802.11b (CCK) rates.
	* For OFDM the PLCP rate encodings are used. We combine these "pure" rates
	* with the modulation type flag and call the resulting values zd-rates.
	*/
	#define ZD_CCK_RATE_1M (ZD_CCK\|0x00)
	#define ZD_CCK_RATE_2M (ZD_CCK\|0x01)
	#define ZD_CCK_RATE_5_5M (ZD_CCK\|0x02)
	#define ZD_CCK_RATE_11M (ZD_CCK\|0x03)
	#define ZD_OFDM_RATE_6M (ZD_OFDM\|ZD_OFDM_PLCP_RATE_6M)
	#define ZD_OFDM_RATE_9M (ZD_OFDM\|ZD_OFDM_PLCP_RATE_9M)
	#define ZD_OFDM_RATE_12M (ZD_OFDM\|ZD_OFDM_PLCP_RATE_12M)
	#define ZD_OFDM_RATE_18M (ZD_OFDM\|ZD_OFDM_PLCP_RATE_18M)
	#define ZD_OFDM_RATE_24M (ZD_OFDM\|ZD_OFDM_PLCP_RATE_24M)
	#define ZD_OFDM_RATE_36M (ZD_OFDM\|ZD_OFDM_PLCP_RATE_36M)
	#define ZD_OFDM_RATE_48M (ZD_OFDM\|ZD_OFDM_PLCP_RATE_48M)
	#define ZD_OFDM_RATE_54M (ZD_OFDM\|ZD_OFDM_PLCP_RATE_54M)

	/* The bit 5 of the zd_ctrlset modulation field controls the preamble in CCK
	* mode or the 802.11a/802.11g selection in OFDM mode.
	*/
	#define ZD_CCK_PREA_LONG 0x00
	#define ZD_CCK_PREA_SHORT 0x20
	#define ZD_OFDM_MODE_11G 0x00
	#define ZD_OFDM_MODE_11A 0x20

	/* zd_ctrlset control field */
	#define ZD_CS_NEED_RANDOM_BACKOFF 0x01
	#define ZD_CS_MULTICAST 0x02

	#define ZD_CS_FRAME_TYPE_MASK 0x0c
	#define ZD_CS_DATA_FRAME 0x00
	#define ZD_CS_PS_POLL_FRAME 0x04
	#define ZD_CS_MANAGEMENT_FRAME 0x08
	#define ZD_CS_NO_SEQUENCE_CTL_FRAME 0x0c

	#define ZD_CS_WAKE_DESTINATION 0x10
	#define ZD_CS_RTS 0x20
	#define ZD_CS_ENCRYPT 0x40
	#define ZD_CS_SELF_CTS 0x80

	/* Incoming frames are prepended by a PLCP header */
	#define ZD_PLCP_HEADER_SIZE 5

	struct rx_length_info {
	__le16 length[3];
	__le16 tag;
	} __attribute__((packed));

	#define RX_LENGTH_INFO_TAG 0x697e

	struct rx_status {
	u8 signal_quality_cck;
	/* rssi */
	u8 signal_strength;
	u8 signal_quality_ofdm;
	u8 decryption_type;
	u8 frame_status;
	} __attribute__((packed));

	/* rx_status field decryption_type */
	#define ZD_RX_NO_WEP 0
	#define ZD_RX_WEP64 1
	#define ZD_RX_TKIP 2
	#define ZD_RX_AES 4
	#define ZD_RX_WEP128 5
	#define ZD_RX_WEP256 6

	/* rx_status field frame_status */
	#define ZD_RX_FRAME_MODULATION_MASK 0x01
	#define ZD_RX_CCK 0x00
	#define ZD_RX_OFDM 0x01

	#define ZD_RX_TIMEOUT_ERROR 0x02
	#define ZD_RX_FIFO_OVERRUN_ERROR 0x04
	#define ZD_RX_DECRYPTION_ERROR 0x08
	#define ZD_RX_CRC32_ERROR 0x10
	#define ZD_RX_NO_ADDR1_MATCH_ERROR 0x20
	#define ZD_RX_CRC16_ERROR 0x40
	#define ZD_RX_ERROR 0x80

	struct housekeeping {
	struct delayed_work link_led_work;
	};

	#define ZD_MAC_STATS_BUFFER_SIZE 16

	struct zd_mac {
	struct zd_chip chip;
	spinlock_t lock;
	struct net_device *netdev;

	/* Unlocked reading possible */
	struct iw_statistics iw_stats;

	struct housekeeping housekeeping;
	struct work_struct set_multicast_hash_work;
	struct zd_mc_hash multicast_hash;
	struct delayed_work set_rts_cts_work;
	struct delayed_work set_basic_rates_work;

	struct tasklet_struct rx_tasklet;
	struct sk_buff_head rx_queue;

	unsigned int stats_count;
	u8 qual_buffer[ZD_MAC_STATS_BUFFER_SIZE];
	u8 rssi_buffer[ZD_MAC_STATS_BUFFER_SIZE];
	u8 regdomain;
	u8 default_regdomain;
	u8 requested_channel;

	/* A bitpattern of cr_rates */
	u16 basic_rates;

	/* A zd_rate */
	u8 rts_rate;

	/* Short preamble (used for RTS/CTS) */
	unsigned int short_preamble:1;

	/* flags to indicate update in progress */
	unsigned int updating_rts_rate:1;
	unsigned int updating_basic_rates:1;
	};

	static inline struct ieee80211_device zd_mac_to_ieee80211(struct zd_mac mac)
	{
	return zd_netdev_ieee80211(mac->netdev);
	}

	static inline struct zd_mac zd_netdev_mac(struct net_device netdev)
	{
	return ieee80211softmac_priv(netdev);
	}

	static inline struct zd_mac zd_chip_to_mac(struct zd_chip chip)
	{
	return container_of(chip, struct zd_mac, chip);
	}

	static inline struct zd_mac zd_usb_to_mac(struct zd_usb usb)
	{
	return zd_chip_to_mac(zd_usb_to_chip(usb));
	}

	#define zd_mac_dev(mac) (zd_chip_dev(&(mac)->chip))

	int zd_mac_init(struct zd_mac *mac,
	struct net_device *netdev,
	struct usb_interface *intf);
	void zd_mac_clear(struct zd_mac *mac);

	int zd_mac_preinit_hw(struct zd_mac *mac);
	int zd_mac_init_hw(struct zd_mac *mac);

	int zd_mac_open(struct net_device *netdev);
	int zd_mac_stop(struct net_device *netdev);
	int zd_mac_set_mac_address(struct net_device dev, void p);
	void zd_mac_set_multicast_list(struct net_device *netdev);

	int zd_mac_rx_irq(struct zd_mac mac, const u8 buffer, unsigned int length);

	int zd_mac_set_regdomain(struct zd_mac *zd_mac, u8 regdomain);
	u8 zd_mac_get_regdomain(struct zd_mac *zd_mac);

	int zd_mac_request_channel(struct zd_mac *mac, u8 channel);
	u8 zd_mac_get_channel(struct zd_mac *mac);

	int zd_mac_set_mode(struct zd_mac *mac, u32 mode);
	int zd_mac_get_mode(struct zd_mac mac, u32 mode);

	int zd_mac_get_range(struct zd_mac mac, struct iw_range range);

	struct iw_statistics zd_mac_get_wireless_stats(struct net_device ndev);

	#ifdef DEBUG
	void zd_dump_rx_status(const struct rx_status *status);
	#else
	#define zd_dump_rx_status(status)
	#endif /* DEBUG */

	#endif /* _ZD_MAC_H */