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/*
* Copyright (c) 2013 Eugene Krasnikov <k.eugene.e@gmail.com>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _WCN36XX_H_
#define _WCN36XX_H_
#include <linux/completion.h>
#include <linux/printk.h>
#include <linux/spinlock.h>
#include <net/mac80211.h>
#include "hal.h"
#include "smd.h"
#include "txrx.h"
#include "dxe.h"
#include "pmc.h"
#include "debug.h"
#define WLAN_NV_FILE "wlan/prima/WCNSS_qcom_wlan_nv.bin"
#define WCN36XX_AGGR_BUFFER_SIZE 64
/* How many frames until we start a-mpdu TX session */
#define WCN36XX_AMPDU_START_THRESH 20
#define WCN36XX_MAX_SCAN_SSIDS 9
#define WCN36XX_MAX_SCAN_IE_LEN 500
extern unsigned int wcn36xx_dbg_mask;
enum wcn36xx_debug_mask {
WCN36XX_DBG_DXE = 0x00000001,
WCN36XX_DBG_DXE_DUMP = 0x00000002,
WCN36XX_DBG_SMD = 0x00000004,
WCN36XX_DBG_SMD_DUMP = 0x00000008,
WCN36XX_DBG_RX = 0x00000010,
WCN36XX_DBG_RX_DUMP = 0x00000020,
WCN36XX_DBG_TX = 0x00000040,
WCN36XX_DBG_TX_DUMP = 0x00000080,
WCN36XX_DBG_HAL = 0x00000100,
WCN36XX_DBG_HAL_DUMP = 0x00000200,
WCN36XX_DBG_MAC = 0x00000400,
WCN36XX_DBG_BEACON = 0x00000800,
WCN36XX_DBG_BEACON_DUMP = 0x00001000,
WCN36XX_DBG_PMC = 0x00002000,
WCN36XX_DBG_PMC_DUMP = 0x00004000,
WCN36XX_DBG_ANY = 0xffffffff,
};
#define wcn36xx_err(fmt, arg...) \
printk(KERN_ERR pr_fmt("ERROR " fmt), ##arg)
#define wcn36xx_warn(fmt, arg...) \
printk(KERN_WARNING pr_fmt("WARNING " fmt), ##arg)
#define wcn36xx_info(fmt, arg...) \
printk(KERN_INFO pr_fmt(fmt), ##arg)
#define wcn36xx_dbg(mask, fmt, arg...) do { \
if (wcn36xx_dbg_mask & mask) \
printk(KERN_DEBUG pr_fmt(fmt), ##arg); \
} while (0)
#define wcn36xx_dbg_dump(mask, prefix_str, buf, len) do { \
if (wcn36xx_dbg_mask & mask) \
print_hex_dump(KERN_DEBUG, pr_fmt(prefix_str), \
DUMP_PREFIX_OFFSET, 32, 1, \
buf, len, false); \
} while (0)
enum wcn36xx_ampdu_state {
WCN36XX_AMPDU_NONE,
WCN36XX_AMPDU_INIT,
WCN36XX_AMPDU_START,
WCN36XX_AMPDU_OPERATIONAL,
};
#define WCN36XX_HW_CHANNEL(__wcn) (__wcn->hw->conf.chandef.chan->hw_value)
#define WCN36XX_BAND(__wcn) (__wcn->hw->conf.chandef.chan->band)
#define WCN36XX_CENTER_FREQ(__wcn) (__wcn->hw->conf.chandef.chan->center_freq)
#define WCN36XX_LISTEN_INTERVAL(__wcn) (__wcn->hw->conf.listen_interval)
#define WCN36XX_FLAGS(__wcn) (__wcn->hw->flags)
#define WCN36XX_MAX_POWER(__wcn) (__wcn->hw->conf.chandef.chan->max_power)
static inline void buff_to_be(u32 *buf, size_t len)
{
int i;
for (i = 0; i < len; i++)
buf[i] = cpu_to_be32(buf[i]);
}
struct nv_data {
int is_valid;
u8 table;
};
/**
* struct wcn36xx_vif - holds VIF related fields
*
* @bss_index: bss_index is initially set to 0xFF. bss_index is received from
* HW after first config_bss call and must be used in delete_bss and
* enter/exit_bmps.
*/
struct wcn36xx_vif {
struct list_head list;
u8 dtim_period;
enum ani_ed_type encrypt_type;
bool is_joining;
bool sta_assoc;
struct wcn36xx_hal_mac_ssid ssid;
/* Power management */
enum wcn36xx_power_state pw_state;
u8 bss_index;
/* Returned from WCN36XX_HAL_ADD_STA_SELF_RSP */
u8 self_sta_index;
u8 self_dpu_desc_index;
u8 self_ucast_dpu_sign;
};
/**
* struct wcn36xx_sta - holds STA related fields
*
* @tid: traffic ID that is used during AMPDU and in TX BD.
* @sta_index: STA index is returned from HW after config_sta call and is
* used in both SMD channel and TX BD.
* @dpu_desc_index: DPU descriptor index is returned from HW after config_sta
* call and is used in TX BD.
* @bss_sta_index: STA index is returned from HW after config_bss call and is
* used in both SMD channel and TX BD. See table bellow when it is used.
* @bss_dpu_desc_index: DPU descriptor index is returned from HW after
* config_bss call and is used in TX BD.
* ______________________________________________
* | | STA | AP |
* |______________|_____________|_______________|
* | TX BD |bss_sta_index| sta_index |
* |______________|_____________|_______________|
* |all SMD calls |bss_sta_index| sta_index |
* |______________|_____________|_______________|
* |smd_delete_sta| sta_index | sta_index |
* |______________|_____________|_______________|
*/
struct wcn36xx_sta {
struct wcn36xx_vif *vif;
u16 aid;
u16 tid;
u8 sta_index;
u8 dpu_desc_index;
u8 ucast_dpu_sign;
u8 bss_sta_index;
u8 bss_dpu_desc_index;
bool is_data_encrypted;
/* Rates */
struct wcn36xx_hal_supported_rates supported_rates;
spinlock_t ampdu_lock; /* protects next two fields */
enum wcn36xx_ampdu_state ampdu_state[16];
int non_agg_frame_ct;
};
struct wcn36xx_dxe_ch;
struct wcn36xx {
struct ieee80211_hw *hw;
struct device *dev;
struct list_head vif_list;
const struct firmware *nv;
u8 fw_revision;
u8 fw_version;
u8 fw_minor;
u8 fw_major;
u32 fw_feat_caps[WCN36XX_HAL_CAPS_SIZE];
bool is_pronto;
/* extra byte for the NULL termination */
u8 crm_version[WCN36XX_HAL_VERSION_LENGTH + 1];
u8 wlan_version[WCN36XX_HAL_VERSION_LENGTH + 1];
/* IRQs */
int tx_irq;
int rx_irq;
void __iomem *ccu_base;
void __iomem *dxe_base;
struct qcom_smd_channel *smd_channel;
struct qcom_smem_state *tx_enable_state;
unsigned tx_enable_state_bit;
struct qcom_smem_state *tx_rings_empty_state;
unsigned tx_rings_empty_state_bit;
/*
* smd_buf must be protected with smd_mutex to garantee
* that all messages are sent one after another
*/
u8 *hal_buf;
size_t hal_rsp_len;
struct mutex hal_mutex;
struct completion hal_rsp_compl;
struct workqueue_struct *hal_ind_wq;
struct work_struct hal_ind_work;
spinlock_t hal_ind_lock;
struct list_head hal_ind_queue;
struct work_struct scan_work;
struct cfg80211_scan_request *scan_req;
int scan_freq;
int scan_band;
struct mutex scan_lock;
bool scan_aborted;
/* DXE channels */
struct wcn36xx_dxe_ch dxe_tx_l_ch; /* TX low */
struct wcn36xx_dxe_ch dxe_tx_h_ch; /* TX high */
struct wcn36xx_dxe_ch dxe_rx_l_ch; /* RX low */
struct wcn36xx_dxe_ch dxe_rx_h_ch; /* RX high */
/* For synchronization of DXE resources from BH, IRQ and WQ contexts */
spinlock_t dxe_lock;
bool queues_stopped;
/* Memory pools */
struct wcn36xx_dxe_mem_pool mgmt_mem_pool;
struct wcn36xx_dxe_mem_pool data_mem_pool;
struct sk_buff *tx_ack_skb;
#ifdef CONFIG_WCN36XX_DEBUGFS
/* Debug file system entry */
struct wcn36xx_dfs_entry dfs;
#endif /* CONFIG_WCN36XX_DEBUGFS */
};
static inline bool wcn36xx_is_fw_version(struct wcn36xx *wcn,
u8 major,
u8 minor,
u8 version,
u8 revision)
{
return (wcn->fw_major == major &&
wcn->fw_minor == minor &&
wcn->fw_version == version &&
wcn->fw_revision == revision);
}
void wcn36xx_set_default_rates(struct wcn36xx_hal_supported_rates *rates);
static inline
struct ieee80211_sta *wcn36xx_priv_to_sta(struct wcn36xx_sta *sta_priv)
{
return container_of((void *)sta_priv, struct ieee80211_sta, drv_priv);
}
static inline
struct wcn36xx_vif *wcn36xx_vif_to_priv(struct ieee80211_vif *vif)
{
return (struct wcn36xx_vif *) vif->drv_priv;
}
static inline
struct ieee80211_vif *wcn36xx_priv_to_vif(struct wcn36xx_vif *vif_priv)
{
return container_of((void *) vif_priv, struct ieee80211_vif, drv_priv);
}
static inline
struct wcn36xx_sta *wcn36xx_sta_to_priv(struct ieee80211_sta *sta)
{
return (struct wcn36xx_sta *)sta->drv_priv;
}
#endif /* _WCN36XX_H_ */
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