/* SPDX-License-Identifier: GPL-2.0-only */ /****************************************************************************** * * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. * * 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 nl80211_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, struct ieee80211_ampdu_params *params); 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_vif *vif, 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__ */