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linux/drivers/net/wireless/iwlwifi/iwl-core.h
Reinette Chatre a0987a8d68 iwlwifi: rely on API version read from firmware 
This adds the infrastructure to support older firmware APIs.
The API version number is stored as part of the filename, we first try to
load the most recent firmware and progressively try lower versions.
The API version is also read from the firmware self and stored as part
of the iwl_priv structure. Only firmware that is supported by driver will
be loaded. The version number read from firmware is compared
to supported versions in the driver not the API version used as part of
filename.

An example using this new infrastrucure:
   if (IWL_UCODE_API(priv->ucode_ver) >= 2) {
        Driver interacts with Firmware API version >= 2.
   } else {
        Driver interacts with Firmware API version 1.
   }

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-12-05 09:35:56 -05:00

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/******************************************************************************
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2008 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:
* Tomas Winkler <tomas.winkler@intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
* BSD LICENSE
*
* Copyright(c) 2005 - 2008 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*****************************************************************************/
#ifndef __iwl_core_h__
#define __iwl_core_h__
/************************
* forward declarations *
************************/
struct iwl_host_cmd;
struct iwl_cmd;
#define IWLWIFI_VERSION "1.3.27k"
#define DRV_COPYRIGHT "Copyright(c) 2003-2008 Intel Corporation"
#define IWL_PCI_DEVICE(dev, subdev, cfg) \
.vendor = PCI_VENDOR_ID_INTEL, .device = (dev), \
.subvendor = PCI_ANY_ID, .subdevice = (subdev), \
.driver_data = (kernel_ulong_t)&(cfg)
#define IWL_SKU_G 0x1
#define IWL_SKU_A 0x2
#define IWL_SKU_N 0x8
struct iwl_hcmd_ops {
int (*rxon_assoc)(struct iwl_priv *priv);
};
struct iwl_hcmd_utils_ops {
u16 (*get_hcmd_size)(u8 cmd_id, u16 len);
u16 (*build_addsta_hcmd)(const struct iwl_addsta_cmd *cmd, u8 *data);
void (*gain_computation)(struct iwl_priv *priv,
u32 *average_noise,
u16 min_average_noise_antennat_i,
u32 min_average_noise);
void (*chain_noise_reset)(struct iwl_priv *priv);
void (*rts_tx_cmd_flag)(struct ieee80211_tx_info *info,
__le32 *tx_flags);
int (*calc_rssi)(struct iwl_priv *priv,
struct iwl_rx_phy_res *rx_resp);
};
struct iwl_lib_ops {
/* set hw dependent parameters */
int (*set_hw_params)(struct iwl_priv *priv);
/* Handling TX */
void (*txq_update_byte_cnt_tbl)(struct iwl_priv *priv,
struct iwl_tx_queue *txq,
u16 byte_cnt);
void (*txq_inval_byte_cnt_tbl)(struct iwl_priv *priv,
struct iwl_tx_queue *txq);
void (*txq_set_sched)(struct iwl_priv *priv, u32 mask);
/* aggregations */
int (*txq_agg_enable)(struct iwl_priv *priv, int txq_id, int tx_fifo,
int sta_id, int tid, u16 ssn_idx);
int (*txq_agg_disable)(struct iwl_priv *priv, u16 txq_id, u16 ssn_idx,
u8 tx_fifo);
/* setup Rx handler */
void (*rx_handler_setup)(struct iwl_priv *priv);
/* setup deferred work */
void (*setup_deferred_work)(struct iwl_priv *priv);
/* cancel deferred work */
void (*cancel_deferred_work)(struct iwl_priv *priv);
/* alive notification after init uCode load */
void (*init_alive_start)(struct iwl_priv *priv);
/* alive notification */
int (*alive_notify)(struct iwl_priv *priv);
/* check validity of rtc data address */
int (*is_valid_rtc_data_addr)(u32 addr);
/* 1st ucode load */
int (*load_ucode)(struct iwl_priv *priv);
/* power management */
struct {
int (*init)(struct iwl_priv *priv);
int (*reset)(struct iwl_priv *priv);
void (*stop)(struct iwl_priv *priv);
void (*config)(struct iwl_priv *priv);
int (*set_pwr_src)(struct iwl_priv *priv, enum iwl_pwr_src src);
} apm_ops;
/* power */
int (*send_tx_power) (struct iwl_priv *priv);
void (*update_chain_flags)(struct iwl_priv *priv);
void (*temperature) (struct iwl_priv *priv);
/* eeprom operations (as defined in iwl-eeprom.h) */
struct iwl_eeprom_ops eeprom_ops;
};
struct iwl_ops {
const struct iwl_lib_ops *lib;
const struct iwl_hcmd_ops *hcmd;
const struct iwl_hcmd_utils_ops *utils;
};
struct iwl_mod_params {
int disable; /* def: 0 = enable radio */
int sw_crypto; /* def: 0 = using hardware encryption */
int debug; /* def: 0 = minimal debug log messages */
int disable_hw_scan; /* def: 0 = use h/w scan */
int num_of_queues; /* def: HW dependent */
int num_of_ampdu_queues;/* def: HW dependent */
int enable_qos; /* def: 1 = use quality of service */
int disable_11n; /* def: 0 = disable 11n capabilities */
int amsdu_size_8K; /* def: 1 = enable 8K amsdu size */
int antenna; /* def: 0 = both antennas (use diversity) */
int restart_fw; /* def: 1 = restart firmware */
};
/**
* struct iwl_cfg
* @fw_name_pre: Firmware filename prefix. The api version and extension
* (.ucode) will be added to filename before loading from disk. The
* filename is constructed as fw_name_pre<api>.ucode.
* @ucode_api_max: Highest version of uCode API supported by driver.
* @ucode_api_min: Lowest version of uCode API supported by driver.
*
* We enable the driver to be backward compatible wrt API version. The
* driver specifies which APIs it supports (with @ucode_api_max being the
* highest and @ucode_api_min the lowest). Firmware will only be loaded if
* it has a supported API version. The firmware's API version will be
* stored in @iwl_priv, enabling the driver to make runtime changes based
* on firmware version used.
*
* For example,
* if (IWL_UCODE_API(priv->ucode_ver) >= 2) {
* Driver interacts with Firmware API version >= 2.
* } else {
* Driver interacts with Firmware API version 1.
* }
*
* The ideal usage of this infrastructure is to treat a new ucode API
* release as a new hardware revision. That is, through utilizing the
* iwl_hcmd_utils_ops etc. we accommodate different command structures
* and flows between hardware versions (4965/5000) as well as their API
* versions.
*/
struct iwl_cfg {
const char *name;
const char *fw_name_pre;
const unsigned int ucode_api_max;
const unsigned int ucode_api_min;
unsigned int sku;
int eeprom_size;
u16 eeprom_ver;
u16 eeprom_calib_ver;
const struct iwl_ops *ops;
const struct iwl_mod_params *mod_params;
};
/***************************
* L i b *
***************************/
struct ieee80211_hw *iwl_alloc_all(struct iwl_cfg *cfg,
struct ieee80211_ops *hw_ops);
void iwl_hw_detect(struct iwl_priv *priv);
void iwl_reset_qos(struct iwl_priv *priv);
void iwl_set_rxon_chain(struct iwl_priv *priv);
int iwl_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch);
void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_info *ht_info);
u8 iwl_is_fat_tx_allowed(struct iwl_priv *priv,
struct ieee80211_sta_ht_cap *sta_ht_inf);
int iwl_hw_nic_init(struct iwl_priv *priv);
int iwl_setup_mac(struct iwl_priv *priv);
int iwl_set_hw_params(struct iwl_priv *priv);
int iwl_init_drv(struct iwl_priv *priv);
void iwl_uninit_drv(struct iwl_priv *priv);
/*****************************************************
* RX
******************************************************/
void iwl_rx_queue_free(struct iwl_priv *priv, struct iwl_rx_queue *rxq);
int iwl_rx_queue_alloc(struct iwl_priv *priv);
void iwl_rx_handle(struct iwl_priv *priv);
int iwl_rx_queue_update_write_ptr(struct iwl_priv *priv,
struct iwl_rx_queue *q);
void iwl_rx_queue_reset(struct iwl_priv *priv, struct iwl_rx_queue *rxq);
void iwl_rx_replenish(struct iwl_priv *priv);
int iwl_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq);
int iwl_rx_queue_restock(struct iwl_priv *priv);
int iwl_rx_queue_space(const struct iwl_rx_queue *q);
void iwl_rx_allocate(struct iwl_priv *priv);
void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb);
int iwl_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index);
/* Handlers */
void iwl_rx_missed_beacon_notif(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb);
void iwl_rx_statistics(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb);
/* TX helpers */
/*****************************************************
* TX
******************************************************/
int iwl_txq_ctx_reset(struct iwl_priv *priv);
int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb);
void iwl_hw_txq_ctx_free(struct iwl_priv *priv);
int iwl_txq_update_write_ptr(struct iwl_priv *priv, struct iwl_tx_queue *txq);
int iwl_tx_agg_start(struct iwl_priv *priv, const u8 *ra, u16 tid, u16 *ssn);
int iwl_tx_agg_stop(struct iwl_priv *priv , const u8 *ra, u16 tid);
int iwl_txq_check_empty(struct iwl_priv *priv, int sta_id, u8 tid, int txq_id);
/*****************************************************
* TX power
****************************************************/
int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force);
/*****************************************************
* RF -Kill - here and not in iwl-rfkill.h to be available when
* RF-kill subsystem is not compiled.
****************************************************/
void iwl_rf_kill(struct iwl_priv *priv);
void iwl_radio_kill_sw_disable_radio(struct iwl_priv *priv);
int iwl_radio_kill_sw_enable_radio(struct iwl_priv *priv);
/*******************************************************************************
* Rate
******************************************************************************/
void iwl_hwrate_to_tx_control(struct iwl_priv *priv, u32 rate_n_flags,
struct ieee80211_tx_info *info);
int iwl_hwrate_to_plcp_idx(u32 rate_n_flags);
u8 iwl_toggle_tx_ant(struct iwl_priv *priv, u8 ant_idx);
static inline u32 iwl_ant_idx_to_flags(u8 ant_idx)
{
return BIT(ant_idx) << RATE_MCS_ANT_POS;
}
static inline u8 iwl_hw_get_rate(__le32 rate_n_flags)
{
return le32_to_cpu(rate_n_flags) & 0xFF;
}
static inline u32 iwl_hw_get_rate_n_flags(__le32 rate_n_flags)
{
return le32_to_cpu(rate_n_flags) & 0x1FFFF;
}
static inline __le32 iwl_hw_set_rate_n_flags(u8 rate, u32 flags)
{
return cpu_to_le32(flags|(u32)rate);
}
/*******************************************************************************
* Scanning
******************************************************************************/
void iwl_init_scan_params(struct iwl_priv *priv);
int iwl_scan_cancel(struct iwl_priv *priv);
int iwl_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms);
int iwl_scan_initiate(struct iwl_priv *priv);
void iwl_setup_rx_scan_handlers(struct iwl_priv *priv);
void iwl_setup_scan_deferred_work(struct iwl_priv *priv);
/*******************************************************************************
* Calibrations - implemented in iwl-calib.c
******************************************************************************/
int iwl_send_calib_results(struct iwl_priv *priv);
int iwl_calib_set(struct iwl_calib_result *res, const u8 *buf, int len);
void iwl_calib_free_results(struct iwl_priv *priv);
/*******************************************************************************
* Spectrum Measureemtns in iwl-spectrum.c
******************************************************************************/
#ifdef CONFIG_IWLAGN_SPECTRUM_MEASUREMENT
void iwl_setup_spectrum_handlers(struct iwl_priv *priv);
#else
static inline void iwl_setup_spectrum_handlers(struct iwl_priv *priv) {}
#endif
/*****************************************************
* S e n d i n g H o s t C o m m a n d s *
*****************************************************/
const char *get_cmd_string(u8 cmd);
int __must_check iwl_send_cmd_sync(struct iwl_priv *priv,
struct iwl_host_cmd *cmd);
int iwl_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
int __must_check iwl_send_cmd_pdu(struct iwl_priv *priv, u8 id,
u16 len, const void *data);
int iwl_send_cmd_pdu_async(struct iwl_priv *priv, u8 id, u16 len,
const void *data,
int (*callback)(struct iwl_priv *priv,
struct iwl_cmd *cmd,
struct sk_buff *skb));
int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
/*****************************************************
* PCI *
*****************************************************/
void iwl_disable_interrupts(struct iwl_priv *priv);
void iwl_enable_interrupts(struct iwl_priv *priv);
/*****************************************************
* Error Handling Debugging
******************************************************/
void iwl_dump_nic_error_log(struct iwl_priv *priv);
void iwl_dump_nic_event_log(struct iwl_priv *priv);
/*************** DRIVER STATUS FUNCTIONS *****/
#define STATUS_HCMD_ACTIVE 0 /* host command in progress */
#define STATUS_HCMD_SYNC_ACTIVE 1 /* sync host command in progress */
#define STATUS_INT_ENABLED 2
#define STATUS_RF_KILL_HW 3
#define STATUS_RF_KILL_SW 4
#define STATUS_INIT 5
#define STATUS_ALIVE 6
#define STATUS_READY 7
#define STATUS_TEMPERATURE 8
#define STATUS_GEO_CONFIGURED 9
#define STATUS_EXIT_PENDING 10
#define STATUS_IN_SUSPEND 11
#define STATUS_STATISTICS 12
#define STATUS_SCANNING 13
#define STATUS_SCAN_ABORTING 14
#define STATUS_SCAN_HW 15
#define STATUS_POWER_PMI 16
#define STATUS_FW_ERROR 17
#define STATUS_MODE_PENDING 18
static inline int iwl_is_ready(struct iwl_priv *priv)
{
/* The adapter is 'ready' if READY and GEO_CONFIGURED bits are
* set but EXIT_PENDING is not */
return test_bit(STATUS_READY, &priv->status) &&
test_bit(STATUS_GEO_CONFIGURED, &priv->status) &&
!test_bit(STATUS_EXIT_PENDING, &priv->status);
}
static inline int iwl_is_alive(struct iwl_priv *priv)
{
return test_bit(STATUS_ALIVE, &priv->status);
}
static inline int iwl_is_init(struct iwl_priv *priv)
{
return test_bit(STATUS_INIT, &priv->status);
}
static inline int iwl_is_rfkill_sw(struct iwl_priv *priv)
{
return test_bit(STATUS_RF_KILL_SW, &priv->status);
}
static inline int iwl_is_rfkill_hw(struct iwl_priv *priv)
{
return test_bit(STATUS_RF_KILL_HW, &priv->status);
}
static inline int iwl_is_rfkill(struct iwl_priv *priv)
{
return iwl_is_rfkill_hw(priv) || iwl_is_rfkill_sw(priv);
}
static inline int iwl_is_ready_rf(struct iwl_priv *priv)
{
if (iwl_is_rfkill(priv))
return 0;
return iwl_is_ready(priv);
}
extern void iwl_rf_kill_ct_config(struct iwl_priv *priv);
extern int iwl_send_statistics_request(struct iwl_priv *priv, u8 flags);
extern int iwl_verify_ucode(struct iwl_priv *priv);
extern int iwl_send_lq_cmd(struct iwl_priv *priv,
struct iwl_link_quality_cmd *lq, u8 flags);
extern void iwl_rx_reply_rx(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb);
extern void iwl_rx_reply_rx_phy(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb);
void iwl_rx_reply_compressed_ba(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb);
static inline int iwl_send_rxon_assoc(struct iwl_priv *priv)
{
return priv->cfg->ops->hcmd->rxon_assoc(priv);
}
static inline const struct ieee80211_supported_band *iwl_get_hw_mode(
struct iwl_priv *priv, enum ieee80211_band band)
{
return priv->hw->wiphy->bands[band];
}
#endif /* __iwl_core_h__ */
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