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alistair23-linux/drivers/net/wireless/iwlegacy/4965.h
Joe Perches 6890ba72f5 iwlegacy: Remove extern from function prototypes 
There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
2013-09-24 18:05:24 -07:00

1285 lines
49 KiB
C
Raw Blame History

/******************************************************************************
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
* USA
*
* The full GNU General Public License is included in this distribution
* in the file called LICENSE.GPL.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
*****************************************************************************/
#ifndef __il_4965_h__
#define __il_4965_h__
struct il_rx_queue;
struct il_rx_buf;
struct il_rx_pkt;
struct il_tx_queue;
struct il_rxon_context;
/* configuration for the _4965 devices */
extern struct il_cfg il4965_cfg;
extern const struct il_ops il4965_ops;
extern struct il_mod_params il4965_mod_params;
/* tx queue */
void il4965_free_tfds_in_queue(struct il_priv *il, int sta_id, int tid,
int freed);
/* RXON */
void il4965_set_rxon_chain(struct il_priv *il);
/* uCode */
int il4965_verify_ucode(struct il_priv *il);
/* lib */
void il4965_check_abort_status(struct il_priv *il, u8 frame_count, u32 status);
void il4965_rx_queue_reset(struct il_priv *il, struct il_rx_queue *rxq);
int il4965_rx_init(struct il_priv *il, struct il_rx_queue *rxq);
int il4965_hw_nic_init(struct il_priv *il);
int il4965_dump_fh(struct il_priv *il, char **buf, bool display);
void il4965_nic_config(struct il_priv *il);
/* rx */
void il4965_rx_queue_restock(struct il_priv *il);
void il4965_rx_replenish(struct il_priv *il);
void il4965_rx_replenish_now(struct il_priv *il);
void il4965_rx_queue_free(struct il_priv *il, struct il_rx_queue *rxq);
int il4965_rxq_stop(struct il_priv *il);
int il4965_hwrate_to_mac80211_idx(u32 rate_n_flags, enum ieee80211_band band);
void il4965_rx_handle(struct il_priv *il);
/* tx */
void il4965_hw_txq_free_tfd(struct il_priv *il, struct il_tx_queue *txq);
int il4965_hw_txq_attach_buf_to_tfd(struct il_priv *il, struct il_tx_queue *txq,
dma_addr_t addr, u16 len, u8 reset, u8 pad);
int il4965_hw_tx_queue_init(struct il_priv *il, struct il_tx_queue *txq);
void il4965_hwrate_to_tx_control(struct il_priv *il, u32 rate_n_flags,
struct ieee80211_tx_info *info);
int il4965_tx_skb(struct il_priv *il,
struct ieee80211_sta *sta,
struct sk_buff *skb);
int il4965_tx_agg_start(struct il_priv *il, struct ieee80211_vif *vif,
struct ieee80211_sta *sta, u16 tid, u16 * ssn);
int il4965_tx_agg_stop(struct il_priv *il, struct ieee80211_vif *vif,
struct ieee80211_sta *sta, u16 tid);
int il4965_txq_check_empty(struct il_priv *il, int sta_id, u8 tid, int txq_id);
int il4965_tx_queue_reclaim(struct il_priv *il, int txq_id, int idx);
void il4965_hw_txq_ctx_free(struct il_priv *il);
int il4965_txq_ctx_alloc(struct il_priv *il);
void il4965_txq_ctx_reset(struct il_priv *il);
void il4965_txq_ctx_stop(struct il_priv *il);
void il4965_txq_set_sched(struct il_priv *il, u32 mask);
/*
* Acquire il->lock before calling this function !
*/
void il4965_set_wr_ptrs(struct il_priv *il, int txq_id, u32 idx);
/**
* il4965_tx_queue_set_status - (optionally) start Tx/Cmd queue
* @tx_fifo_id: Tx DMA/FIFO channel (range 0-7) that the queue will feed
* @scd_retry: (1) Indicates queue will be used in aggregation mode
*
* NOTE: Acquire il->lock before calling this function !
*/
void il4965_tx_queue_set_status(struct il_priv *il, struct il_tx_queue *txq,
int tx_fifo_id, int scd_retry);
/* scan */
int il4965_request_scan(struct il_priv *il, struct ieee80211_vif *vif);
/* station mgmt */
int il4965_manage_ibss_station(struct il_priv *il, struct ieee80211_vif *vif,
bool add);
/* hcmd */
int il4965_send_beacon_cmd(struct il_priv *il);
#ifdef CONFIG_IWLEGACY_DEBUG
const char *il4965_get_tx_fail_reason(u32 status);
#else
static inline const char *
il4965_get_tx_fail_reason(u32 status)
{
return "";
}
#endif
/* station management */
int il4965_alloc_bcast_station(struct il_priv *il);
int il4965_add_bssid_station(struct il_priv *il, const u8 *addr, u8 *sta_id_r);
int il4965_remove_default_wep_key(struct il_priv *il,
struct ieee80211_key_conf *key);
int il4965_set_default_wep_key(struct il_priv *il,
struct ieee80211_key_conf *key);
int il4965_restore_default_wep_keys(struct il_priv *il);
int il4965_set_dynamic_key(struct il_priv *il,
struct ieee80211_key_conf *key, u8 sta_id);
int il4965_remove_dynamic_key(struct il_priv *il,
struct ieee80211_key_conf *key, u8 sta_id);
void il4965_update_tkip_key(struct il_priv *il,
struct ieee80211_key_conf *keyconf,
struct ieee80211_sta *sta, u32 iv32,
u16 *phase1key);
int il4965_sta_tx_modify_enable_tid(struct il_priv *il, int sta_id, int tid);
int il4965_sta_rx_agg_start(struct il_priv *il, struct ieee80211_sta *sta,
int tid, u16 ssn);
int il4965_sta_rx_agg_stop(struct il_priv *il, struct ieee80211_sta *sta,
int tid);
void il4965_sta_modify_sleep_tx_count(struct il_priv *il, int sta_id, int cnt);
int il4965_update_bcast_stations(struct il_priv *il);
/* rate */
static inline u8
il4965_hw_get_rate(__le32 rate_n_flags)
{
return le32_to_cpu(rate_n_flags) & 0xFF;
}
/* eeprom */
void il4965_eeprom_get_mac(const struct il_priv *il, u8 * mac);
int il4965_eeprom_acquire_semaphore(struct il_priv *il);
void il4965_eeprom_release_semaphore(struct il_priv *il);
int il4965_eeprom_check_version(struct il_priv *il);
/* mac80211 handlers (for 4965) */
void il4965_mac_tx(struct ieee80211_hw *hw,
struct ieee80211_tx_control *control,
struct sk_buff *skb);
int il4965_mac_start(struct ieee80211_hw *hw);
void il4965_mac_stop(struct ieee80211_hw *hw);
void il4965_configure_filter(struct ieee80211_hw *hw,
unsigned int changed_flags,
unsigned int *total_flags, u64 multicast);
int il4965_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
struct ieee80211_vif *vif, struct ieee80211_sta *sta,
struct ieee80211_key_conf *key);
void il4965_mac_update_tkip_key(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_key_conf *keyconf,
struct ieee80211_sta *sta, u32 iv32,
u16 *phase1key);
int il4965_mac_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
enum ieee80211_ampdu_mlme_action action,
struct ieee80211_sta *sta, u16 tid, u16 * ssn,
u8 buf_size);
int il4965_mac_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct ieee80211_sta *sta);
void il4965_mac_channel_switch(struct ieee80211_hw *hw,
struct ieee80211_channel_switch *ch_switch);
void il4965_led_enable(struct il_priv *il);
/* EEPROM */
#define IL4965_EEPROM_IMG_SIZE 1024
/*
* uCode queue management definitions ...
* The first queue used for block-ack aggregation is #7 (4965 only).
* All block-ack aggregation queues should map to Tx DMA/FIFO channel 7.
*/
#define IL49_FIRST_AMPDU_QUEUE 7
/* Sizes and addresses for instruction and data memory (SRAM) in
* 4965's embedded processor. Driver access is via HBUS_TARG_MEM_* regs. */
#define IL49_RTC_INST_LOWER_BOUND (0x000000)
#define IL49_RTC_INST_UPPER_BOUND (0x018000)
#define IL49_RTC_DATA_LOWER_BOUND (0x800000)
#define IL49_RTC_DATA_UPPER_BOUND (0x80A000)
#define IL49_RTC_INST_SIZE (IL49_RTC_INST_UPPER_BOUND - \
IL49_RTC_INST_LOWER_BOUND)
#define IL49_RTC_DATA_SIZE (IL49_RTC_DATA_UPPER_BOUND - \
IL49_RTC_DATA_LOWER_BOUND)
#define IL49_MAX_INST_SIZE IL49_RTC_INST_SIZE
#define IL49_MAX_DATA_SIZE IL49_RTC_DATA_SIZE
/* Size of uCode instruction memory in bootstrap state machine */
#define IL49_MAX_BSM_SIZE BSM_SRAM_SIZE
static inline int
il4965_hw_valid_rtc_data_addr(u32 addr)
{
return (addr >= IL49_RTC_DATA_LOWER_BOUND &&
addr < IL49_RTC_DATA_UPPER_BOUND);
}
/********************* START TEMPERATURE *************************************/
/**
* 4965 temperature calculation.
*
* The driver must calculate the device temperature before calculating
* a txpower setting (amplifier gain is temperature dependent). The
* calculation uses 4 measurements, 3 of which (R1, R2, R3) are calibration
* values used for the life of the driver, and one of which (R4) is the
* real-time temperature indicator.
*
* uCode provides all 4 values to the driver via the "initialize alive"
* notification (see struct il4965_init_alive_resp). After the runtime uCode
* image loads, uCode updates the R4 value via stats notifications
* (see N_STATS), which occur after each received beacon
* when associated, or can be requested via C_STATS.
*
* NOTE: uCode provides the R4 value as a 23-bit signed value. Driver
* must sign-extend to 32 bits before applying formula below.
*
* Formula:
*
* degrees Kelvin = ((97 * 259 * (R4 - R2) / (R3 - R1)) / 100) + 8
*
* NOTE: The basic formula is 259 * (R4-R2) / (R3-R1). The 97/100 is
* an additional correction, which should be centered around 0 degrees
* Celsius (273 degrees Kelvin). The 8 (3 percent of 273) compensates for
* centering the 97/100 correction around 0 degrees K.
*
* Add 273 to Kelvin value to find degrees Celsius, for comparing current
* temperature with factory-measured temperatures when calculating txpower
* settings.
*/
#define TEMPERATURE_CALIB_KELVIN_OFFSET 8
#define TEMPERATURE_CALIB_A_VAL 259
/* Limit range of calculated temperature to be between these Kelvin values */
#define IL_TX_POWER_TEMPERATURE_MIN (263)
#define IL_TX_POWER_TEMPERATURE_MAX (410)
#define IL_TX_POWER_TEMPERATURE_OUT_OF_RANGE(t) \
((t) < IL_TX_POWER_TEMPERATURE_MIN || \
(t) > IL_TX_POWER_TEMPERATURE_MAX)
void il4965_temperature_calib(struct il_priv *il);
/********************* END TEMPERATURE ***************************************/
/********************* START TXPOWER *****************************************/
/**
* 4965 txpower calculations rely on information from three sources:
*
* 1) EEPROM
* 2) "initialize" alive notification
* 3) stats notifications
*
* EEPROM data consists of:
*
* 1) Regulatory information (max txpower and channel usage flags) is provided
* separately for each channel that can possibly supported by 4965.
* 40 MHz wide (.11n HT40) channels are listed separately from 20 MHz
* (legacy) channels.
*
* See struct il4965_eeprom_channel for format, and struct il4965_eeprom
* for locations in EEPROM.
*
* 2) Factory txpower calibration information is provided separately for
* sub-bands of contiguous channels. 2.4GHz has just one sub-band,
* but 5 GHz has several sub-bands.
*
* In addition, per-band (2.4 and 5 Ghz) saturation txpowers are provided.
*
* See struct il4965_eeprom_calib_info (and the tree of structures
* contained within it) for format, and struct il4965_eeprom for
* locations in EEPROM.
*
* "Initialization alive" notification (see struct il4965_init_alive_resp)
* consists of:
*
* 1) Temperature calculation parameters.
*
* 2) Power supply voltage measurement.
*
* 3) Tx gain compensation to balance 2 transmitters for MIMO use.
*
* Statistics notifications deliver:
*
* 1) Current values for temperature param R4.
*/
/**
* To calculate a txpower setting for a given desired target txpower, channel,
* modulation bit rate, and transmitter chain (4965 has 2 transmitters to
* support MIMO and transmit diversity), driver must do the following:
*
* 1) Compare desired txpower vs. (EEPROM) regulatory limit for this channel.
* Do not exceed regulatory limit; reduce target txpower if necessary.
*
* If setting up txpowers for MIMO rates (rate idxes 8-15, 24-31),
* 2 transmitters will be used simultaneously; driver must reduce the
* regulatory limit by 3 dB (half-power) for each transmitter, so the
* combined total output of the 2 transmitters is within regulatory limits.
*
*
* 2) Compare target txpower vs. (EEPROM) saturation txpower *reduced by
* backoff for this bit rate*. Do not exceed (saturation - backoff[rate]);
* reduce target txpower if necessary.
*
* Backoff values below are in 1/2 dB units (equivalent to steps in
* txpower gain tables):
*
* OFDM 6 - 36 MBit: 10 steps (5 dB)
* OFDM 48 MBit: 15 steps (7.5 dB)
* OFDM 54 MBit: 17 steps (8.5 dB)
* OFDM 60 MBit: 20 steps (10 dB)
* CCK all rates: 10 steps (5 dB)
*
* Backoff values apply to saturation txpower on a per-transmitter basis;
* when using MIMO (2 transmitters), each transmitter uses the same
* saturation level provided in EEPROM, and the same backoff values;
* no reduction (such as with regulatory txpower limits) is required.
*
* Saturation and Backoff values apply equally to 20 Mhz (legacy) channel
* widths and 40 Mhz (.11n HT40) channel widths; there is no separate
* factory measurement for ht40 channels.
*
* The result of this step is the final target txpower. The rest of
* the steps figure out the proper settings for the device to achieve
* that target txpower.
*
*
* 3) Determine (EEPROM) calibration sub band for the target channel, by
* comparing against first and last channels in each sub band
* (see struct il4965_eeprom_calib_subband_info).
*
*
* 4) Linearly interpolate (EEPROM) factory calibration measurement sets,
* referencing the 2 factory-measured (sample) channels within the sub band.
*
* Interpolation is based on difference between target channel's frequency
* and the sample channels' frequencies. Since channel numbers are based
* on frequency (5 MHz between each channel number), this is equivalent
* to interpolating based on channel number differences.
*
* Note that the sample channels may or may not be the channels at the
* edges of the sub band. The target channel may be "outside" of the
* span of the sampled channels.
*
* Driver may choose the pair (for 2 Tx chains) of measurements (see
* struct il4965_eeprom_calib_ch_info) for which the actual measured
* txpower comes closest to the desired txpower. Usually, though,
* the middle set of measurements is closest to the regulatory limits,
* and is therefore a good choice for all txpower calculations (this
* assumes that high accuracy is needed for maximizing legal txpower,
* while lower txpower configurations do not need as much accuracy).
*
* Driver should interpolate both members of the chosen measurement pair,
* i.e. for both Tx chains (radio transmitters), unless the driver knows
* that only one of the chains will be used (e.g. only one tx antenna
* connected, but this should be unusual). The rate scaling algorithm
* switches antennas to find best performance, so both Tx chains will
* be used (although only one at a time) even for non-MIMO transmissions.
*
* Driver should interpolate factory values for temperature, gain table
* idx, and actual power. The power amplifier detector values are
* not used by the driver.
*
* Sanity check: If the target channel happens to be one of the sample
* channels, the results should agree with the sample channel's
* measurements!
*
*
* 5) Find difference between desired txpower and (interpolated)
* factory-measured txpower. Using (interpolated) factory gain table idx
* (shown elsewhere) as a starting point, adjust this idx lower to
* increase txpower, or higher to decrease txpower, until the target
* txpower is reached. Each step in the gain table is 1/2 dB.
*
* For example, if factory measured txpower is 16 dBm, and target txpower
* is 13 dBm, add 6 steps to the factory gain idx to reduce txpower
* by 3 dB.
*
*
* 6) Find difference between current device temperature and (interpolated)
* factory-measured temperature for sub-band. Factory values are in
* degrees Celsius. To calculate current temperature, see comments for
* "4965 temperature calculation".
*
* If current temperature is higher than factory temperature, driver must
* increase gain (lower gain table idx), and vice verse.
*
* Temperature affects gain differently for different channels:
*
* 2.4 GHz all channels: 3.5 degrees per half-dB step
* 5 GHz channels 34-43: 4.5 degrees per half-dB step
* 5 GHz channels >= 44: 4.0 degrees per half-dB step
*
* NOTE: Temperature can increase rapidly when transmitting, especially
* with heavy traffic at high txpowers. Driver should update
* temperature calculations often under these conditions to
* maintain strong txpower in the face of rising temperature.
*
*
* 7) Find difference between current power supply voltage indicator
* (from "initialize alive") and factory-measured power supply voltage
* indicator (EEPROM).
*
* If the current voltage is higher (indicator is lower) than factory
* voltage, gain should be reduced (gain table idx increased) by:
*
* (eeprom - current) / 7
*
* If the current voltage is lower (indicator is higher) than factory
* voltage, gain should be increased (gain table idx decreased) by:
*
* 2 * (current - eeprom) / 7
*
* If number of idx steps in either direction turns out to be > 2,
* something is wrong ... just use 0.
*
* NOTE: Voltage compensation is independent of band/channel.
*
* NOTE: "Initialize" uCode measures current voltage, which is assumed
* to be constant after this initial measurement. Voltage
* compensation for txpower (number of steps in gain table)
* may be calculated once and used until the next uCode bootload.
*
*
* 8) If setting up txpowers for MIMO rates (rate idxes 8-15, 24-31),
* adjust txpower for each transmitter chain, so txpower is balanced
* between the two chains. There are 5 pairs of tx_atten[group][chain]
* values in "initialize alive", one pair for each of 5 channel ranges:
*
* Group 0: 5 GHz channel 34-43
* Group 1: 5 GHz channel 44-70
* Group 2: 5 GHz channel 71-124
* Group 3: 5 GHz channel 125-200
* Group 4: 2.4 GHz all channels
*
* Add the tx_atten[group][chain] value to the idx for the target chain.
* The values are signed, but are in pairs of 0 and a non-negative number,
* so as to reduce gain (if necessary) of the "hotter" channel. This
* avoids any need to double-check for regulatory compliance after
* this step.
*
*
* 9) If setting up for a CCK rate, lower the gain by adding a CCK compensation
* value to the idx:
*
* Hardware rev B: 9 steps (4.5 dB)
* Hardware rev C: 5 steps (2.5 dB)
*
* Hardware rev for 4965 can be determined by reading CSR_HW_REV_WA_REG,
* bits [3:2], 1 = B, 2 = C.
*
* NOTE: This compensation is in addition to any saturation backoff that
* might have been applied in an earlier step.
*
*
* 10) Select the gain table, based on band (2.4 vs 5 GHz).
*
* Limit the adjusted idx to stay within the table!
*
*
* 11) Read gain table entries for DSP and radio gain, place into appropriate
* location(s) in command (struct il4965_txpowertable_cmd).
*/
/**
* When MIMO is used (2 transmitters operating simultaneously), driver should
* limit each transmitter to deliver a max of 3 dB below the regulatory limit
* for the device. That is, use half power for each transmitter, so total
* txpower is within regulatory limits.
*
* The value "6" represents number of steps in gain table to reduce power 3 dB.
* Each step is 1/2 dB.
*/
#define IL_TX_POWER_MIMO_REGULATORY_COMPENSATION (6)
/**
* CCK gain compensation.
*
* When calculating txpowers for CCK, after making sure that the target power
* is within regulatory and saturation limits, driver must additionally
* back off gain by adding these values to the gain table idx.
*
* Hardware rev for 4965 can be determined by reading CSR_HW_REV_WA_REG,
* bits [3:2], 1 = B, 2 = C.
*/
#define IL_TX_POWER_CCK_COMPENSATION_B_STEP (9)
#define IL_TX_POWER_CCK_COMPENSATION_C_STEP (5)
/*
* 4965 power supply voltage compensation for txpower
*/
#define TX_POWER_IL_VOLTAGE_CODES_PER_03V (7)
/**
* Gain tables.
*
* The following tables contain pair of values for setting txpower, i.e.
* gain settings for the output of the device's digital signal processor (DSP),
* and for the analog gain structure of the transmitter.
*
* Each entry in the gain tables represents a step of 1/2 dB. Note that these
* are *relative* steps, not indications of absolute output power. Output
* power varies with temperature, voltage, and channel frequency, and also
* requires consideration of average power (to satisfy regulatory constraints),
* and peak power (to avoid distortion of the output signal).
*
* Each entry contains two values:
* 1) DSP gain (or sometimes called DSP attenuation). This is a fine-grained
* linear value that multiplies the output of the digital signal processor,
* before being sent to the analog radio.
* 2) Radio gain. This sets the analog gain of the radio Tx path.
* It is a coarser setting, and behaves in a logarithmic (dB) fashion.
*
* EEPROM contains factory calibration data for txpower. This maps actual
* measured txpower levels to gain settings in the "well known" tables
* below ("well-known" means here that both factory calibration *and* the
* driver work with the same table).
*
* There are separate tables for 2.4 GHz and 5 GHz bands. The 5 GHz table
* has an extension (into negative idxes), in case the driver needs to
* boost power setting for high device temperatures (higher than would be
* present during factory calibration). A 5 Ghz EEPROM idx of "40"
* corresponds to the 49th entry in the table used by the driver.
*/
#define MIN_TX_GAIN_IDX (0) /* highest gain, lowest idx, 2.4 */
#define MIN_TX_GAIN_IDX_52GHZ_EXT (-9) /* highest gain, lowest idx, 5 */
/**
* 2.4 GHz gain table
*
* Index Dsp gain Radio gain
* 0 110 0x3f (highest gain)
* 1 104 0x3f
* 2 98 0x3f
* 3 110 0x3e
* 4 104 0x3e
* 5 98 0x3e
* 6 110 0x3d
* 7 104 0x3d
* 8 98 0x3d
* 9 110 0x3c
* 10 104 0x3c
* 11 98 0x3c
* 12 110 0x3b
* 13 104 0x3b
* 14 98 0x3b
* 15 110 0x3a
* 16 104 0x3a
* 17 98 0x3a
* 18 110 0x39
* 19 104 0x39
* 20 98 0x39
* 21 110 0x38
* 22 104 0x38
* 23 98 0x38
* 24 110 0x37
* 25 104 0x37
* 26 98 0x37
* 27 110 0x36
* 28 104 0x36
* 29 98 0x36
* 30 110 0x35
* 31 104 0x35
* 32 98 0x35
* 33 110 0x34
* 34 104 0x34
* 35 98 0x34
* 36 110 0x33
* 37 104 0x33
* 38 98 0x33
* 39 110 0x32
* 40 104 0x32
* 41 98 0x32
* 42 110 0x31
* 43 104 0x31
* 44 98 0x31
* 45 110 0x30
* 46 104 0x30
* 47 98 0x30
* 48 110 0x6
* 49 104 0x6
* 50 98 0x6
* 51 110 0x5
* 52 104 0x5
* 53 98 0x5
* 54 110 0x4
* 55 104 0x4
* 56 98 0x4
* 57 110 0x3
* 58 104 0x3
* 59 98 0x3
* 60 110 0x2
* 61 104 0x2
* 62 98 0x2
* 63 110 0x1
* 64 104 0x1
* 65 98 0x1
* 66 110 0x0
* 67 104 0x0
* 68 98 0x0
* 69 97 0
* 70 96 0
* 71 95 0
* 72 94 0
* 73 93 0
* 74 92 0
* 75 91 0
* 76 90 0
* 77 89 0
* 78 88 0
* 79 87 0
* 80 86 0
* 81 85 0
* 82 84 0
* 83 83 0
* 84 82 0
* 85 81 0
* 86 80 0
* 87 79 0
* 88 78 0
* 89 77 0
* 90 76 0
* 91 75 0
* 92 74 0
* 93 73 0
* 94 72 0
* 95 71 0
* 96 70 0
* 97 69 0
* 98 68 0
*/
/**
* 5 GHz gain table
*
* Index Dsp gain Radio gain
* -9 123 0x3F (highest gain)
* -8 117 0x3F
* -7 110 0x3F
* -6 104 0x3F
* -5 98 0x3F
* -4 110 0x3E
* -3 104 0x3E
* -2 98 0x3E
* -1 110 0x3D
* 0 104 0x3D
* 1 98 0x3D
* 2 110 0x3C
* 3 104 0x3C
* 4 98 0x3C
* 5 110 0x3B
* 6 104 0x3B
* 7 98 0x3B
* 8 110 0x3A
* 9 104 0x3A
* 10 98 0x3A
* 11 110 0x39
* 12 104 0x39
* 13 98 0x39
* 14 110 0x38
* 15 104 0x38
* 16 98 0x38
* 17 110 0x37
* 18 104 0x37
* 19 98 0x37
* 20 110 0x36
* 21 104 0x36
* 22 98 0x36
* 23 110 0x35
* 24 104 0x35
* 25 98 0x35
* 26 110 0x34
* 27 104 0x34
* 28 98 0x34
* 29 110 0x33
* 30 104 0x33
* 31 98 0x33
* 32 110 0x32
* 33 104 0x32
* 34 98 0x32
* 35 110 0x31
* 36 104 0x31
* 37 98 0x31
* 38 110 0x30
* 39 104 0x30
* 40 98 0x30
* 41 110 0x25
* 42 104 0x25
* 43 98 0x25
* 44 110 0x24
* 45 104 0x24
* 46 98 0x24
* 47 110 0x23
* 48 104 0x23
* 49 98 0x23
* 50 110 0x22
* 51 104 0x18
* 52 98 0x18
* 53 110 0x17
* 54 104 0x17
* 55 98 0x17
* 56 110 0x16
* 57 104 0x16
* 58 98 0x16
* 59 110 0x15
* 60 104 0x15
* 61 98 0x15
* 62 110 0x14
* 63 104 0x14
* 64 98 0x14
* 65 110 0x13
* 66 104 0x13
* 67 98 0x13
* 68 110 0x12
* 69 104 0x08
* 70 98 0x08
* 71 110 0x07
* 72 104 0x07
* 73 98 0x07
* 74 110 0x06
* 75 104 0x06
* 76 98 0x06
* 77 110 0x05
* 78 104 0x05
* 79 98 0x05
* 80 110 0x04
* 81 104 0x04
* 82 98 0x04
* 83 110 0x03
* 84 104 0x03
* 85 98 0x03
* 86 110 0x02
* 87 104 0x02
* 88 98 0x02
* 89 110 0x01
* 90 104 0x01
* 91 98 0x01
* 92 110 0x00
* 93 104 0x00
* 94 98 0x00
* 95 93 0x00
* 96 88 0x00
* 97 83 0x00
* 98 78 0x00
*/
/**
* Sanity checks and default values for EEPROM regulatory levels.
* If EEPROM values fall outside MIN/MAX range, use default values.
*
* Regulatory limits refer to the maximum average txpower allowed by
* regulatory agencies in the geographies in which the device is meant
* to be operated. These limits are SKU-specific (i.e. geography-specific),
* and channel-specific; each channel has an individual regulatory limit
* listed in the EEPROM.
*
* Units are in half-dBm (i.e. "34" means 17 dBm).
*/
#define IL_TX_POWER_DEFAULT_REGULATORY_24 (34)
#define IL_TX_POWER_DEFAULT_REGULATORY_52 (34)
#define IL_TX_POWER_REGULATORY_MIN (0)
#define IL_TX_POWER_REGULATORY_MAX (34)
/**
* Sanity checks and default values for EEPROM saturation levels.
* If EEPROM values fall outside MIN/MAX range, use default values.
*
* Saturation is the highest level that the output power amplifier can produce
* without significant clipping distortion. This is a "peak" power level.
* Different types of modulation (i.e. various "rates", and OFDM vs. CCK)
* require differing amounts of backoff, relative to their average power output,
* in order to avoid clipping distortion.
*
* Driver must make sure that it is violating neither the saturation limit,
* nor the regulatory limit, when calculating Tx power settings for various
* rates.
*
* Units are in half-dBm (i.e. "38" means 19 dBm).
*/
#define IL_TX_POWER_DEFAULT_SATURATION_24 (38)
#define IL_TX_POWER_DEFAULT_SATURATION_52 (38)
#define IL_TX_POWER_SATURATION_MIN (20)
#define IL_TX_POWER_SATURATION_MAX (50)
/**
* Channel groups used for Tx Attenuation calibration (MIMO tx channel balance)
* and thermal Txpower calibration.
*
* When calculating txpower, driver must compensate for current device
* temperature; higher temperature requires higher gain. Driver must calculate
* current temperature (see "4965 temperature calculation"), then compare vs.
* factory calibration temperature in EEPROM; if current temperature is higher
* than factory temperature, driver must *increase* gain by proportions shown
* in table below. If current temperature is lower than factory, driver must
* *decrease* gain.
*
* Different frequency ranges require different compensation, as shown below.
*/
/* Group 0, 5.2 GHz ch 34-43: 4.5 degrees per 1/2 dB. */
#define CALIB_IL_TX_ATTEN_GR1_FCH 34
#define CALIB_IL_TX_ATTEN_GR1_LCH 43
/* Group 1, 5.3 GHz ch 44-70: 4.0 degrees per 1/2 dB. */
#define CALIB_IL_TX_ATTEN_GR2_FCH 44
#define CALIB_IL_TX_ATTEN_GR2_LCH 70
/* Group 2, 5.5 GHz ch 71-124: 4.0 degrees per 1/2 dB. */
#define CALIB_IL_TX_ATTEN_GR3_FCH 71
#define CALIB_IL_TX_ATTEN_GR3_LCH 124
/* Group 3, 5.7 GHz ch 125-200: 4.0 degrees per 1/2 dB. */
#define CALIB_IL_TX_ATTEN_GR4_FCH 125
#define CALIB_IL_TX_ATTEN_GR4_LCH 200
/* Group 4, 2.4 GHz all channels: 3.5 degrees per 1/2 dB. */
#define CALIB_IL_TX_ATTEN_GR5_FCH 1
#define CALIB_IL_TX_ATTEN_GR5_LCH 20
enum {
CALIB_CH_GROUP_1 = 0,
CALIB_CH_GROUP_2 = 1,
CALIB_CH_GROUP_3 = 2,
CALIB_CH_GROUP_4 = 3,
CALIB_CH_GROUP_5 = 4,
CALIB_CH_GROUP_MAX
};
/********************* END TXPOWER *****************************************/
/**
* Tx/Rx Queues
*
* Most communication between driver and 4965 is via queues of data buffers.
* For example, all commands that the driver issues to device's embedded
* controller (uCode) are via the command queue (one of the Tx queues). All
* uCode command responses/replies/notifications, including Rx frames, are
* conveyed from uCode to driver via the Rx queue.
*
* Most support for these queues, including handshake support, resides in
* structures in host DRAM, shared between the driver and the device. When
* allocating this memory, the driver must make sure that data written by
* the host CPU updates DRAM immediately (and does not get "stuck" in CPU's
* cache memory), so DRAM and cache are consistent, and the device can
* immediately see changes made by the driver.
*
* 4965 supports up to 16 DRAM-based Tx queues, and services these queues via
* up to 7 DMA channels (FIFOs). Each Tx queue is supported by a circular array
* in DRAM containing 256 Transmit Frame Descriptors (TFDs).
*/
#define IL49_NUM_FIFOS 7
#define IL49_CMD_FIFO_NUM 4
#define IL49_NUM_QUEUES 16
#define IL49_NUM_AMPDU_QUEUES 8
/**
* struct il4965_schedq_bc_tbl
*
* Byte Count table
*
* Each Tx queue uses a byte-count table containing 320 entries:
* one 16-bit entry for each of 256 TFDs, plus an additional 64 entries that
* duplicate the first 64 entries (to avoid wrap-around within a Tx win;
* max Tx win is 64 TFDs).
*
* When driver sets up a new TFD, it must also enter the total byte count
* of the frame to be transmitted into the corresponding entry in the byte
* count table for the chosen Tx queue. If the TFD idx is 0-63, the driver
* must duplicate the byte count entry in corresponding idx 256-319.
*
* padding puts each byte count table on a 1024-byte boundary;
* 4965 assumes tables are separated by 1024 bytes.
*/
struct il4965_scd_bc_tbl {
__le16 tfd_offset[TFD_QUEUE_BC_SIZE];
u8 pad[1024 - (TFD_QUEUE_BC_SIZE) * sizeof(__le16)];
} __packed;
#define IL4965_RTC_INST_LOWER_BOUND (0x000000)
/* RSSI to dBm */
#define IL4965_RSSI_OFFSET 44
/* PCI registers */
#define PCI_CFG_RETRY_TIMEOUT 0x041
#define IL4965_DEFAULT_TX_RETRY 15
/* EEPROM */
#define IL4965_FIRST_AMPDU_QUEUE 10
/* Calibration */
void il4965_chain_noise_calibration(struct il_priv *il, void *stat_resp);
void il4965_sensitivity_calibration(struct il_priv *il, void *resp);
void il4965_init_sensitivity(struct il_priv *il);
void il4965_reset_run_time_calib(struct il_priv *il);
/* Debug */
#ifdef CONFIG_IWLEGACY_DEBUGFS
extern const struct il_debugfs_ops il4965_debugfs_ops;
#endif
/****************************/
/* Flow Handler Definitions */
/****************************/
/**
* This I/O area is directly read/writable by driver (e.g. Linux uses writel())
* Addresses are offsets from device's PCI hardware base address.
*/
#define FH49_MEM_LOWER_BOUND (0x1000)
#define FH49_MEM_UPPER_BOUND (0x2000)
/**
* Keep-Warm (KW) buffer base address.
*
* Driver must allocate a 4KByte buffer that is used by 4965 for keeping the
* host DRAM powered on (via dummy accesses to DRAM) to maintain low-latency
* DRAM access when 4965 is Txing or Rxing. The dummy accesses prevent host
* from going into a power-savings mode that would cause higher DRAM latency,
* and possible data over/under-runs, before all Tx/Rx is complete.
*
* Driver loads FH49_KW_MEM_ADDR_REG with the physical address (bits 35:4)
* of the buffer, which must be 4K aligned. Once this is set up, the 4965
* automatically invokes keep-warm accesses when normal accesses might not
* be sufficient to maintain fast DRAM response.
*
* Bit fields:
* 31-0: Keep-warm buffer physical base address [35:4], must be 4K aligned
*/
#define FH49_KW_MEM_ADDR_REG (FH49_MEM_LOWER_BOUND + 0x97C)
/**
* TFD Circular Buffers Base (CBBC) addresses
*
* 4965 has 16 base pointer registers, one for each of 16 host-DRAM-resident
* circular buffers (CBs/queues) containing Transmit Frame Descriptors (TFDs)
* (see struct il_tfd_frame). These 16 pointer registers are offset by 0x04
* bytes from one another. Each TFD circular buffer in DRAM must be 256-byte
* aligned (address bits 0-7 must be 0).
*
* Bit fields in each pointer register:
* 27-0: TFD CB physical base address [35:8], must be 256-byte aligned
*/
#define FH49_MEM_CBBC_LOWER_BOUND (FH49_MEM_LOWER_BOUND + 0x9D0)
#define FH49_MEM_CBBC_UPPER_BOUND (FH49_MEM_LOWER_BOUND + 0xA10)
/* Find TFD CB base pointer for given queue (range 0-15). */
#define FH49_MEM_CBBC_QUEUE(x) (FH49_MEM_CBBC_LOWER_BOUND + (x) * 0x4)
/**
* Rx SRAM Control and Status Registers (RSCSR)
*
* These registers provide handshake between driver and 4965 for the Rx queue
* (this queue handles *all* command responses, notifications, Rx data, etc.
* sent from 4965 uCode to host driver). Unlike Tx, there is only one Rx
* queue, and only one Rx DMA/FIFO channel. Also unlike Tx, which can
* concatenate up to 20 DRAM buffers to form a Tx frame, each Receive Buffer
* Descriptor (RBD) points to only one Rx Buffer (RB); there is a 1:1
* mapping between RBDs and RBs.
*
* Driver must allocate host DRAM memory for the following, and set the
* physical address of each into 4965 registers:
*
* 1) Receive Buffer Descriptor (RBD) circular buffer (CB), typically with 256
* entries (although any power of 2, up to 4096, is selectable by driver).
* Each entry (1 dword) points to a receive buffer (RB) of consistent size
* (typically 4K, although 8K or 16K are also selectable by driver).
* Driver sets up RB size and number of RBDs in the CB via Rx config
* register FH49_MEM_RCSR_CHNL0_CONFIG_REG.
*
* Bit fields within one RBD:
* 27-0: Receive Buffer physical address bits [35:8], 256-byte aligned
*
* Driver sets physical address [35:8] of base of RBD circular buffer
* into FH49_RSCSR_CHNL0_RBDCB_BASE_REG [27:0].
*
* 2) Rx status buffer, 8 bytes, in which 4965 indicates which Rx Buffers
* (RBs) have been filled, via a "write pointer", actually the idx of
* the RB's corresponding RBD within the circular buffer. Driver sets
* physical address [35:4] into FH49_RSCSR_CHNL0_STTS_WPTR_REG [31:0].
*
* Bit fields in lower dword of Rx status buffer (upper dword not used
* by driver; see struct il4965_shared, val0):
* 31-12: Not used by driver
* 11- 0: Index of last filled Rx buffer descriptor
* (4965 writes, driver reads this value)
*
* As the driver prepares Receive Buffers (RBs) for 4965 to fill, driver must
* enter pointers to these RBs into contiguous RBD circular buffer entries,
* and update the 4965's "write" idx register,
* FH49_RSCSR_CHNL0_RBDCB_WPTR_REG.
*
* This "write" idx corresponds to the *next* RBD that the driver will make
* available, i.e. one RBD past the tail of the ready-to-fill RBDs within
* the circular buffer. This value should initially be 0 (before preparing any
* RBs), should be 8 after preparing the first 8 RBs (for example), and must
* wrap back to 0 at the end of the circular buffer (but don't wrap before
* "read" idx has advanced past 1! See below).
* NOTE: 4965 EXPECTS THE WRITE IDX TO BE INCREMENTED IN MULTIPLES OF 8.
*
* As the 4965 fills RBs (referenced from contiguous RBDs within the circular
* buffer), it updates the Rx status buffer in host DRAM, 2) described above,
* to tell the driver the idx of the latest filled RBD. The driver must
* read this "read" idx from DRAM after receiving an Rx interrupt from 4965.
*
* The driver must also internally keep track of a third idx, which is the
* next RBD to process. When receiving an Rx interrupt, driver should process
* all filled but unprocessed RBs up to, but not including, the RB
* corresponding to the "read" idx. For example, if "read" idx becomes "1",
* driver may process the RB pointed to by RBD 0. Depending on volume of
* traffic, there may be many RBs to process.
*
* If read idx == write idx, 4965 thinks there is no room to put new data.
* Due to this, the maximum number of filled RBs is 255, instead of 256. To
* be safe, make sure that there is a gap of at least 2 RBDs between "write"
* and "read" idxes; that is, make sure that there are no more than 254
* buffers waiting to be filled.
*/
#define FH49_MEM_RSCSR_LOWER_BOUND (FH49_MEM_LOWER_BOUND + 0xBC0)
#define FH49_MEM_RSCSR_UPPER_BOUND (FH49_MEM_LOWER_BOUND + 0xC00)
#define FH49_MEM_RSCSR_CHNL0 (FH49_MEM_RSCSR_LOWER_BOUND)
/**
* Physical base address of 8-byte Rx Status buffer.
* Bit fields:
* 31-0: Rx status buffer physical base address [35:4], must 16-byte aligned.
*/
#define FH49_RSCSR_CHNL0_STTS_WPTR_REG (FH49_MEM_RSCSR_CHNL0)
/**
* Physical base address of Rx Buffer Descriptor Circular Buffer.
* Bit fields:
* 27-0: RBD CD physical base address [35:8], must be 256-byte aligned.
*/
#define FH49_RSCSR_CHNL0_RBDCB_BASE_REG (FH49_MEM_RSCSR_CHNL0 + 0x004)
/**
* Rx write pointer (idx, really!).
* Bit fields:
* 11-0: Index of driver's most recent prepared-to-be-filled RBD, + 1.
* NOTE: For 256-entry circular buffer, use only bits [7:0].
*/
#define FH49_RSCSR_CHNL0_RBDCB_WPTR_REG (FH49_MEM_RSCSR_CHNL0 + 0x008)
#define FH49_RSCSR_CHNL0_WPTR (FH49_RSCSR_CHNL0_RBDCB_WPTR_REG)
/**
* Rx Config/Status Registers (RCSR)
* Rx Config Reg for channel 0 (only channel used)
*
* Driver must initialize FH49_MEM_RCSR_CHNL0_CONFIG_REG as follows for
* normal operation (see bit fields).
*
* Clearing FH49_MEM_RCSR_CHNL0_CONFIG_REG to 0 turns off Rx DMA.
* Driver should poll FH49_MEM_RSSR_RX_STATUS_REG for
* FH49_RSSR_CHNL0_RX_STATUS_CHNL_IDLE (bit 24) before continuing.
*
* Bit fields:
* 31-30: Rx DMA channel enable: '00' off/pause, '01' pause at end of frame,
* '10' operate normally
* 29-24: reserved
* 23-20: # RBDs in circular buffer = 2^value; use "8" for 256 RBDs (normal),
* min "5" for 32 RBDs, max "12" for 4096 RBDs.
* 19-18: reserved
* 17-16: size of each receive buffer; '00' 4K (normal), '01' 8K,
* '10' 12K, '11' 16K.
* 15-14: reserved
* 13-12: IRQ destination; '00' none, '01' host driver (normal operation)
* 11- 4: timeout for closing Rx buffer and interrupting host (units 32 usec)
* typical value 0x10 (about 1/2 msec)
* 3- 0: reserved
*/
#define FH49_MEM_RCSR_LOWER_BOUND (FH49_MEM_LOWER_BOUND + 0xC00)
#define FH49_MEM_RCSR_UPPER_BOUND (FH49_MEM_LOWER_BOUND + 0xCC0)
#define FH49_MEM_RCSR_CHNL0 (FH49_MEM_RCSR_LOWER_BOUND)
#define FH49_MEM_RCSR_CHNL0_CONFIG_REG (FH49_MEM_RCSR_CHNL0)
#define FH49_RCSR_CHNL0_RX_CONFIG_RB_TIMEOUT_MSK (0x00000FF0) /* bits 4-11 */
#define FH49_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_MSK (0x00001000) /* bits 12 */
#define FH49_RCSR_CHNL0_RX_CONFIG_SINGLE_FRAME_MSK (0x00008000) /* bit 15 */
#define FH49_RCSR_CHNL0_RX_CONFIG_RB_SIZE_MSK (0x00030000) /* bits 16-17 */
#define FH49_RCSR_CHNL0_RX_CONFIG_RBDBC_SIZE_MSK (0x00F00000) /* bits 20-23 */
#define FH49_RCSR_CHNL0_RX_CONFIG_DMA_CHNL_EN_MSK (0xC0000000) /* bits 30-31 */
#define FH49_RCSR_RX_CONFIG_RBDCB_SIZE_POS (20)
#define FH49_RCSR_RX_CONFIG_REG_IRQ_RBTH_POS (4)
#define RX_RB_TIMEOUT (0x10)
#define FH49_RCSR_RX_CONFIG_CHNL_EN_PAUSE_VAL (0x00000000)
#define FH49_RCSR_RX_CONFIG_CHNL_EN_PAUSE_EOF_VAL (0x40000000)
#define FH49_RCSR_RX_CONFIG_CHNL_EN_ENABLE_VAL (0x80000000)
#define FH49_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_4K (0x00000000)
#define FH49_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_8K (0x00010000)
#define FH49_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_12K (0x00020000)
#define FH49_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_16K (0x00030000)
#define FH49_RCSR_CHNL0_RX_IGNORE_RXF_EMPTY (0x00000004)
#define FH49_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_NO_INT_VAL (0x00000000)
#define FH49_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_INT_HOST_VAL (0x00001000)
/**
* Rx Shared Status Registers (RSSR)
*
* After stopping Rx DMA channel (writing 0 to
* FH49_MEM_RCSR_CHNL0_CONFIG_REG), driver must poll
* FH49_MEM_RSSR_RX_STATUS_REG until Rx channel is idle.
*
* Bit fields:
* 24: 1 = Channel 0 is idle
*
* FH49_MEM_RSSR_SHARED_CTRL_REG and FH49_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV
* contain default values that should not be altered by the driver.
*/
#define FH49_MEM_RSSR_LOWER_BOUND (FH49_MEM_LOWER_BOUND + 0xC40)
#define FH49_MEM_RSSR_UPPER_BOUND (FH49_MEM_LOWER_BOUND + 0xD00)
#define FH49_MEM_RSSR_SHARED_CTRL_REG (FH49_MEM_RSSR_LOWER_BOUND)
#define FH49_MEM_RSSR_RX_STATUS_REG (FH49_MEM_RSSR_LOWER_BOUND + 0x004)
#define FH49_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV\
(FH49_MEM_RSSR_LOWER_BOUND + 0x008)
#define FH49_RSSR_CHNL0_RX_STATUS_CHNL_IDLE (0x01000000)
#define FH49_MEM_TFDIB_REG1_ADDR_BITSHIFT 28
/* TFDB Area - TFDs buffer table */
#define FH49_MEM_TFDIB_DRAM_ADDR_LSB_MSK (0xFFFFFFFF)
#define FH49_TFDIB_LOWER_BOUND (FH49_MEM_LOWER_BOUND + 0x900)
#define FH49_TFDIB_UPPER_BOUND (FH49_MEM_LOWER_BOUND + 0x958)
#define FH49_TFDIB_CTRL0_REG(_chnl) (FH49_TFDIB_LOWER_BOUND + 0x8 * (_chnl))
#define FH49_TFDIB_CTRL1_REG(_chnl) (FH49_TFDIB_LOWER_BOUND + 0x8 * (_chnl) + 0x4)
/**
* Transmit DMA Channel Control/Status Registers (TCSR)
*
* 4965 has one configuration register for each of 8 Tx DMA/FIFO channels
* supported in hardware (don't confuse these with the 16 Tx queues in DRAM,
* which feed the DMA/FIFO channels); config regs are separated by 0x20 bytes.
*
* To use a Tx DMA channel, driver must initialize its
* FH49_TCSR_CHNL_TX_CONFIG_REG(chnl) with:
*
* FH49_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE |
* FH49_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE_VAL
*
* All other bits should be 0.
*
* Bit fields:
* 31-30: Tx DMA channel enable: '00' off/pause, '01' pause at end of frame,
* '10' operate normally
* 29- 4: Reserved, set to "0"
* 3: Enable internal DMA requests (1, normal operation), disable (0)
* 2- 0: Reserved, set to "0"
*/
#define FH49_TCSR_LOWER_BOUND (FH49_MEM_LOWER_BOUND + 0xD00)
#define FH49_TCSR_UPPER_BOUND (FH49_MEM_LOWER_BOUND + 0xE60)
/* Find Control/Status reg for given Tx DMA/FIFO channel */
#define FH49_TCSR_CHNL_NUM (7)
#define FH50_TCSR_CHNL_NUM (8)
/* TCSR: tx_config register values */
#define FH49_TCSR_CHNL_TX_CONFIG_REG(_chnl) \
(FH49_TCSR_LOWER_BOUND + 0x20 * (_chnl))
#define FH49_TCSR_CHNL_TX_CREDIT_REG(_chnl) \
(FH49_TCSR_LOWER_BOUND + 0x20 * (_chnl) + 0x4)
#define FH49_TCSR_CHNL_TX_BUF_STS_REG(_chnl) \
(FH49_TCSR_LOWER_BOUND + 0x20 * (_chnl) + 0x8)
#define FH49_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_TXF (0x00000000)
#define FH49_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_DRV (0x00000001)
#define FH49_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_DISABLE (0x00000000)
#define FH49_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE (0x00000008)
#define FH49_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_NOINT (0x00000000)
#define FH49_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_ENDTFD (0x00100000)
#define FH49_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_IFTFD (0x00200000)
#define FH49_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_NOINT (0x00000000)
#define FH49_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_ENDTFD (0x00400000)
#define FH49_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_IFTFD (0x00800000)
#define FH49_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_PAUSE (0x00000000)
#define FH49_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_PAUSE_EOF (0x40000000)
#define FH49_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE (0x80000000)
#define FH49_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_EMPTY (0x00000000)
#define FH49_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_WAIT (0x00002000)
#define FH49_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_VALID (0x00000003)
#define FH49_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_NUM (20)
#define FH49_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_IDX (12)
/**
* Tx Shared Status Registers (TSSR)
*
* After stopping Tx DMA channel (writing 0 to
* FH49_TCSR_CHNL_TX_CONFIG_REG(chnl)), driver must poll
* FH49_TSSR_TX_STATUS_REG until selected Tx channel is idle
* (channel's buffers empty | no pending requests).
*
* Bit fields:
* 31-24: 1 = Channel buffers empty (channel 7:0)
* 23-16: 1 = No pending requests (channel 7:0)
*/
#define FH49_TSSR_LOWER_BOUND (FH49_MEM_LOWER_BOUND + 0xEA0)
#define FH49_TSSR_UPPER_BOUND (FH49_MEM_LOWER_BOUND + 0xEC0)
#define FH49_TSSR_TX_STATUS_REG (FH49_TSSR_LOWER_BOUND + 0x010)
/**
* Bit fields for TSSR(Tx Shared Status & Control) error status register:
* 31: Indicates an address error when accessed to internal memory
* uCode/driver must write "1" in order to clear this flag
* 30: Indicates that Host did not send the expected number of dwords to FH
* uCode/driver must write "1" in order to clear this flag
* 16-9:Each status bit is for one channel. Indicates that an (Error) ActDMA
* command was received from the scheduler while the TRB was already full
* with previous command
* uCode/driver must write "1" in order to clear this flag
* 7-0: Each status bit indicates a channel's TxCredit error. When an error
* bit is set, it indicates that the FH has received a full indication
* from the RTC TxFIFO and the current value of the TxCredit counter was
* not equal to zero. This mean that the credit mechanism was not
* synchronized to the TxFIFO status
* uCode/driver must write "1" in order to clear this flag
*/
#define FH49_TSSR_TX_ERROR_REG (FH49_TSSR_LOWER_BOUND + 0x018)
#define FH49_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE(_chnl) ((1 << (_chnl)) << 16)
/* Tx service channels */
#define FH49_SRVC_CHNL (9)
#define FH49_SRVC_LOWER_BOUND (FH49_MEM_LOWER_BOUND + 0x9C8)
#define FH49_SRVC_UPPER_BOUND (FH49_MEM_LOWER_BOUND + 0x9D0)
#define FH49_SRVC_CHNL_SRAM_ADDR_REG(_chnl) \
(FH49_SRVC_LOWER_BOUND + ((_chnl) - 9) * 0x4)
#define FH49_TX_CHICKEN_BITS_REG (FH49_MEM_LOWER_BOUND + 0xE98)
/* Instruct FH to increment the retry count of a packet when
* it is brought from the memory to TX-FIFO
*/
#define FH49_TX_CHICKEN_BITS_SCD_AUTO_RETRY_EN (0x00000002)
/* Keep Warm Size */
#define IL_KW_SIZE 0x1000 /* 4k */
#endif /* __il_4965_h__ */
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