path: root/drivers/net/wireless/ath9k/hw.h

/*
 * Copyright (c) 2008 Atheros Communications Inc.
 *
 * 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 HW_H
#define HW_H

#include <linux/if_ether.h>
#include <linux/delay.h>
#include <linux/io.h>

#include "mac.h"
#include "ani.h"
#include "eeprom.h"
#include "calib.h"
#include "regd.h"
#include "reg.h"
#include "phy.h"

#define ATHEROS_VENDOR_ID	0x168c
#define AR5416_DEVID_PCI	0x0023
#define AR5416_DEVID_PCIE	0x0024
#define AR9160_DEVID_PCI	0x0027
#define AR9280_DEVID_PCI	0x0029
#define AR9280_DEVID_PCIE	0x002a
#define AR9285_DEVID_PCIE	0x002b
#define AR5416_AR9100_DEVID	0x000b
#define	AR_SUBVENDOR_ID_NOG	0x0e11
#define AR_SUBVENDOR_ID_NEW_A	0x7065
#define AR5416_MAGIC		0x19641014

/* Register read/write primitives */
#define REG_WRITE(_ah, _reg, _val) ath9k_iowrite32((_ah), (_reg), (_val))
#define REG_READ(_ah, _reg) ath9k_ioread32((_ah), (_reg))

#define SM(_v, _f)  (((_v) << _f##_S) & _f)
#define MS(_v, _f)  (((_v) & _f) >> _f##_S)
#define REG_RMW(_a, _r, _set, _clr)    \
	REG_WRITE(_a, _r, (REG_READ(_a, _r) & ~(_clr)) | (_set))
#define REG_RMW_FIELD(_a, _r, _f, _v) \
	REG_WRITE(_a, _r, \
	(REG_READ(_a, _r) & ~_f) | (((_v) << _f##_S) & _f))
#define REG_SET_BIT(_a, _r, _f) \
	REG_WRITE(_a, _r, REG_READ(_a, _r) | _f)
#define REG_CLR_BIT(_a, _r, _f) \
	REG_WRITE(_a, _r, REG_READ(_a, _r) & ~_f)

#define DO_DELAY(x) do {			\
		if ((++(x) % 64) == 0)          \
			udelay(1);		\
	} while (0)

#define REG_WRITE_ARRAY(iniarray, column, regWr) do {                   \
		int r;							\
		for (r = 0; r < ((iniarray)->ia_rows); r++) {		\
			REG_WRITE(ah, INI_RA((iniarray), (r), 0),	\
				  INI_RA((iniarray), r, (column)));	\
			DO_DELAY(regWr);				\
		}							\
	} while (0)

#define AR_GPIO_OUTPUT_MUX_AS_OUTPUT             0
#define AR_GPIO_OUTPUT_MUX_AS_PCIE_ATTENTION_LED 1
#define AR_GPIO_OUTPUT_MUX_AS_PCIE_POWER_LED     2
#define AR_GPIO_OUTPUT_MUX_AS_TX_FRAME           3
#define AR_GPIO_OUTPUT_MUX_AS_MAC_NETWORK_LED    5
#define AR_GPIO_OUTPUT_MUX_AS_MAC_POWER_LED      6

#define AR_GPIOD_MASK               0x00001FFF
#define AR_GPIO_BIT(_gpio)          (1 << (_gpio))

#define BASE_ACTIVATE_DELAY         100
#define RTC_PLL_SETTLE_DELAY        1000
#define COEF_SCALE_S                24
#define HT40_CHANNEL_CENTER_SHIFT   10

#define ATH9K_ANTENNA0_CHAINMASK    0x1
#define ATH9K_ANTENNA1_CHAINMASK    0x2

#define ATH9K_NUM_DMA_DEBUG_REGS    8
#define ATH9K_NUM_QUEUES            10

#define MAX_RATE_POWER              63
#define AH_WAIT_TIMEOUT             100000 /* (us) */
#define AH_TIME_QUANTUM             10
#define AR_KEYTABLE_SIZE            128
#define POWER_UP_TIME               200000
#define SPUR_RSSI_THRESH            40

#define CAB_TIMEOUT_VAL             10
#define BEACON_TIMEOUT_VAL          10
#define MIN_BEACON_TIMEOUT_VAL      1
#define SLEEP_SLOP                  3

#define INIT_CONFIG_STATUS          0x00000000
#define INIT_RSSI_THR               0x00000700
#define INIT_BCON_CNTRL_REG         0x00000000

#define TU_TO_USEC(_tu)             ((_tu) << 10)

enum wireless_mode {
	ATH9K_MODE_11A = 0,
	ATH9K_MODE_11B = 2,
	ATH9K_MODE_11G = 3,
	ATH9K_MODE_11NA_HT20 = 6,
	ATH9K_MODE_11NG_HT20 = 7,
	ATH9K_MODE_11NA_HT40PLUS = 8,
	ATH9K_MODE_11NA_HT40MINUS = 9,
	ATH9K_MODE_11NG_HT40PLUS = 10,
	ATH9K_MODE_11NG_HT40MINUS = 11,
	ATH9K_MODE_MAX
};

enum ath9k_hw_caps {
	ATH9K_HW_CAP_CHAN_SPREAD		= BIT(0),
	ATH9K_HW_CAP_MIC_AESCCM                 = BIT(1),
	ATH9K_HW_CAP_MIC_CKIP                   = BIT(2),
	ATH9K_HW_CAP_MIC_TKIP                   = BIT(3),
	ATH9K_HW_CAP_CIPHER_AESCCM              = BIT(4),
	ATH9K_HW_CAP_CIPHER_CKIP                = BIT(5),
	ATH9K_HW_CAP_CIPHER_TKIP                = BIT(6),
	ATH9K_HW_CAP_VEOL                       = BIT(7),
	ATH9K_HW_CAP_BSSIDMASK                  = BIT(8),
	ATH9K_HW_CAP_MCAST_KEYSEARCH            = BIT(9),
	ATH9K_HW_CAP_CHAN_HALFRATE              = BIT(10),
	ATH9K_HW_CAP_CHAN_QUARTERRATE           = BIT(11),
	ATH9K_HW_CAP_HT                         = BIT(12),
	ATH9K_HW_CAP_GTT                        = BIT(13),
	ATH9K_HW_CAP_FASTCC                     = BIT(14),
	ATH9K_HW_CAP_RFSILENT                   = BIT(15),
	ATH9K_HW_CAP_WOW                        = BIT(16),
	ATH9K_HW_CAP_CST                        = BIT(17),
	ATH9K_HW_CAP_ENHANCEDPM                 = BIT(18),
	ATH9K_HW_CAP_AUTOSLEEP                  = BIT(19),
	ATH9K_HW_CAP_4KB_SPLITTRANS             = BIT(20),
	ATH9K_HW_CAP_WOW_MATCHPATTERN_EXACT     = BIT(21),
	ATH9K_HW_CAP_BT_COEX			= BIT(22)
};

enum ath9k_capability_type {
	ATH9K_CAP_CIPHER = 0,
	ATH9K_CAP_TKIP_MIC,
	ATH9K_CAP_TKIP_SPLIT,
	ATH9K_CAP_DIVERSITY,
	ATH9K_CAP_TXPOW,
	ATH9K_CAP_MCAST_KEYSRCH,
	ATH9K_CAP_DS
};

struct ath9k_hw_capabilities {
	u32 hw_caps; /* ATH9K_HW_CAP_* from ath9k_hw_caps */
	DECLARE_BITMAP(wireless_modes, ATH9K_MODE_MAX); /* ATH9K_MODE_* */
	u16 total_queues;
	u16 keycache_size;
	u16 low_5ghz_chan, high_5ghz_chan;
	u16 low_2ghz_chan, high_2ghz_chan;
	u16 num_mr_retries;
	u16 rts_aggr_limit;
	u8 tx_chainmask;
	u8 rx_chainmask;
	u16 tx_triglevel_max;
	u16 reg_cap;
	u8 num_gpio_pins;
	u8 num_antcfg_2ghz;
	u8 num_antcfg_5ghz;
};

struct ath9k_ops_config {
	int dma_beacon_response_time;
	int sw_beacon_response_time;
	int additional_swba_backoff;
	int ack_6mb;
	int cwm_ignore_extcca;
	u8 pcie_powersave_enable;
	u8 pcie_l1skp_enable;
	u8 pcie_clock_req;
	u32 pcie_waen;
	int pcie_power_reset;
	u8 pcie_restore;
	u8 analog_shiftreg;
	u8 ht_enable;
	u32 ofdm_trig_low;
	u32 ofdm_trig_high;
	u32 cck_trig_high;
	u32 cck_trig_low;
	u32 enable_ani;
	u8 noise_immunity_level;
	u32 ofdm_weaksignal_det;
	u32 cck_weaksignal_thr;
	u8 spur_immunity_level;
	u8 firstep_level;
	int8_t rssi_thr_high;
	int8_t rssi_thr_low;
	u16 diversity_control;
	u16 antenna_switch_swap;
	int serialize_regmode;
	int intr_mitigation;
#define SPUR_DISABLE        	0
#define SPUR_ENABLE_IOCTL   	1
#define SPUR_ENABLE_EEPROM  	2
#define AR_EEPROM_MODAL_SPURS   5
#define AR_SPUR_5413_1      	1640
#define AR_SPUR_5413_2      	1200
#define AR_NO_SPUR      	0x8000
#define AR_BASE_FREQ_2GHZ   	2300
#define AR_BASE_FREQ_5GHZ   	4900
#define AR_SPUR_FEEQ_BOUND_HT40 19
#define AR_SPUR_FEEQ_BOUND_HT20 10
	int spurmode;
	u16 spurchans[AR_EEPROM_MODAL_SPURS][2];
};

enum ath9k_int {
	ATH9K_INT_RX = 0x00000001,
	ATH9K_INT_RXDESC = 0x00000002,
	ATH9K_INT_RXNOFRM = 0x00000008,
	ATH9K_INT_RXEOL = 0x00000010,
	ATH9K_INT_RXORN = 0x00000020,
	ATH9K_INT_TX = 0x00000040,
	ATH9K_INT_TXDESC = 0x00000080,
	ATH9K_INT_TIM_TIMER = 0x00000100,
	ATH9K_INT_TXURN = 0x00000800,
	ATH9K_INT_MIB = 0x00001000,
	ATH9K_INT_RXPHY = 0x00004000,
	ATH9K_INT_RXKCM = 0x00008000,
	ATH9K_INT_SWBA = 0x00010000,
	ATH9K_INT_BMISS = 0x00040000,
	ATH9K_INT_BNR = 0x00100000,
	ATH9K_INT_TIM = 0x00200000,
	ATH9K_INT_DTIM = 0x00400000,
	ATH9K_INT_DTIMSYNC = 0x00800000,
	ATH9K_INT_GPIO = 0x01000000,
	ATH9K_INT_CABEND = 0x02000000,
	ATH9K_INT_TSFOOR = 0x04000000,
	ATH9K_INT_CST = 0x10000000,
	ATH9K_INT_GTT = 0x20000000,
	ATH9K_INT_FATAL = 0x40000000,
	ATH9K_INT_GLOBAL = 0x80000000,
	ATH9K_INT_BMISC = ATH9K_INT_TIM |
		ATH9K_INT_DTIM |
		ATH9K_INT_DTIMSYNC |
		ATH9K_INT_TSFOOR |
		ATH9K_INT_CABEND,
	ATH9K_INT_COMMON = ATH9K_INT_RXNOFRM |
		ATH9K_INT_RXDESC |
		ATH9K_INT_RXEOL |
		ATH9K_INT_RXORN |
		ATH9K_INT_TXURN |
		ATH9K_INT_TXDESC |
		ATH9K_INT_MIB |
		ATH9K_INT_RXPHY |
		ATH9K_INT_RXKCM |
		ATH9K_INT_SWBA |
		ATH9K_INT_BMISS |
		ATH9K_INT_GPIO,
	ATH9K_INT_NOCARD = 0xffffffff
};

#define CHANNEL_CW_INT    0x00002
#define CHANNEL_CCK       0x00020
#define CHANNEL_OFDM      0x00040
#define CHANNEL_2GHZ      0x00080
#define CHANNEL_5GHZ      0x00100
#define CHANNEL_PASSIVE   0x00200
#define CHANNEL_DYN       0x00400
#define CHANNEL_HALF      0x04000
#define CHANNEL_QUARTER   0x08000
#define CHANNEL_HT20      0x10000
#define CHANNEL_HT40PLUS  0x20000
#define CHANNEL_HT40MINUS 0x40000

#define CHANNEL_INTERFERENCE    0x01
#define CHANNEL_DFS             0x02
#define CHANNEL_4MS_LIMIT       0x04
#define CHANNEL_DFS_CLEAR       0x08
#define CHANNEL_DISALLOW_ADHOC  0x10
#define CHANNEL_PER_11D_ADHOC   0x20

#define CHANNEL_A           (CHANNEL_5GHZ|CHANNEL_OFDM)
#define CHANNEL_B           (CHANNEL_2GHZ|CHANNEL_CCK)
#define CHANNEL_G           (CHANNEL_2GHZ|CHANNEL_OFDM)
#define CHANNEL_G_HT20      (CHANNEL_2GHZ|CHANNEL_HT20)
#define CHANNEL_A_HT20      (CHANNEL_5GHZ|CHANNEL_HT20)
#define CHANNEL_G_HT40PLUS  (CHANNEL_2GHZ|CHANNEL_HT40PLUS)
#define CHANNEL_G_HT40MINUS (CHANNEL_2GHZ|CHANNEL_HT40MINUS)
#define CHANNEL_A_HT40PLUS  (CHANNEL_5GHZ|CHANNEL_HT40PLUS)
#define CHANNEL_A_HT40MINUS (CHANNEL_5GHZ|CHANNEL_HT40MINUS)
#define CHANNEL_ALL				\
	(CHANNEL_OFDM|				\
	 CHANNEL_CCK|				\
	 CHANNEL_2GHZ |				\
	 CHANNEL_5GHZ |				\
	 CHANNEL_HT20 |				\
	 CHANNEL_HT40PLUS |			\
	 CHANNEL_HT40MINUS)

struct ath9k_channel {
	struct ieee80211_channel *chan;
	u16 channel;
	u32 channelFlags;
	u32 chanmode;
	int32_t CalValid;
	bool oneTimeCalsDone;
	int8_t iCoff;
	int8_t qCoff;
	int16_t rawNoiseFloor;
};

#define IS_CHAN_A(_c) ((((_c)->channelFlags & CHANNEL_A) == CHANNEL_A) || \
       (((_c)->channelFlags & CHANNEL_A_HT20) == CHANNEL_A_HT20) || \
       (((_c)->channelFlags & CHANNEL_A_HT40PLUS) == CHANNEL_A_HT40PLUS) || \
       (((_c)->channelFlags & CHANNEL_A_HT40MINUS) == CHANNEL_A_HT40MINUS))
#define IS_CHAN_G(_c) ((((_c)->channelFlags & (CHANNEL_G)) == CHANNEL_G) || \
       (((_c)->channelFlags & CHANNEL_G_HT20) == CHANNEL_G_HT20) || \
       (((_c)->channelFlags & CHANNEL_G_HT40PLUS) == CHANNEL_G_HT40PLUS) || \
       (((_c)->ch