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openwifi/driver/sdr.h

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// Author: Xianjun Jiao, Michael Mehari, Wei Liu
// SPDX-FileCopyrightText: 2019 UGent
// SPDX-License-Identifier: AGPL-3.0-or-later
#ifndef OPENWIFI_SDR
#define OPENWIFI_SDR
#include "pre_def.h"
// -------------------for leds--------------------------------
struct gpio_led_data { //please always align with the leds-gpio.c in linux kernel
struct led_classdev cdev;
struct gpio_desc *gpiod;
u8 can_sleep;
u8 blinking;
gpio_blink_set_t platform_gpio_blink_set;
};
struct gpio_leds_priv { //please always align with the leds-gpio.c in linux kernel
int num_leds;
struct gpio_led_data leds[];
};
struct openwifi_rf_ops {
char *name;
// void (*init)(struct ieee80211_hw *);
// void (*stop)(struct ieee80211_hw *);
void (*set_chan)(struct ieee80211_hw *, struct ieee80211_conf *);
// u8 (*calc_rssi)(u8 agc, u8 sq);
};
struct openwifi_buffer_descriptor {
// u32 num_dma_byte;
// u32 sn;
// u32 hw_queue_idx;
// u32 retry_limit;
// u32 need_ack;
u16 seq_no;
struct sk_buff *skb_linked;
dma_addr_t dma_mapping_addr;
// u32 reserved;
} __packed;
struct openwifi_ring {
struct openwifi_buffer_descriptor *bds;
u32 bd_wr_idx;
u32 bd_rd_idx;
u32 stop_flag; // track the stop/wake status between tx interrupt and openwifi_tx
// u32 num_dma_symbol_request;
// u32 reserved;
} __packed;
struct openwifi_vif {
struct ieee80211_hw *dev;
int idx; // this vif's idx on the dev
/* beaconing */
struct delayed_work beacon_work;
bool enable_beacon;
};
union u32_byte4 {
u32 a;
u8 c[4];
};
union u16_byte2 {
u16 a;
u8 c[2];
};
#define MAX_NUM_LED 4
#define OPENWIFI_LED_MAX_NAME_LEN 32
// ------------ software reg definition ------------
#define MAX_NUM_DRV_REG 8
#define DRV_TX_REG_IDX_RATE 0
#define DRV_TX_REG_IDX_FREQ_BW_CFG 1
#define DRV_TX_REG_IDX_PRINT_CFG (MAX_NUM_DRV_REG-1)
#define DRV_RX_REG_IDX_FREQ_BW_CFG 1
#define DRV_RX_REG_IDX_EXTRA_FO 2
#define DRV_RX_REG_IDX_PRINT_CFG (MAX_NUM_DRV_REG-1)
#define DRV_XPU_REG_IDX_LBT_TH 0
#define DRV_XPU_REG_IDX_GIT_REV (MAX_NUM_DRV_REG-1)
// ------end of software reg definition ------------
#define MAX_NUM_VIF 4
//#define LEN_PHY_HEADER 16
#define LEN_PHY_CRC 4
#define LEN_MPDU_DELIM 4
#define RING_ROOM_THRESHOLD 4
#define NUM_BIT_NUM_TX_BD 6
#define NUM_TX_BD (1<<NUM_BIT_NUM_TX_BD) // !!! should align to the fifo size in tx_bit_intf.v
#ifdef USE_NEW_RX_INTERRUPT
#define NUM_RX_BD 8
#else
#define NUM_RX_BD 16
#endif
#define TX_BD_BUF_SIZE (8192)
#define RX_BD_BUF_SIZE (8192)
#define NUM_BIT_MAX_NUM_HW_QUEUE 2
#define MAX_NUM_HW_QUEUE 4 // number of queue in FPGA
#define MAX_NUM_SW_QUEUE 4 // number of queue in Linux, depends on the number we report by dev->queues in openwifi_dev_probe
#define NUM_BIT_MAX_PHY_TX_SN 10 // decrease 12 to 10 to reserve 2 bits storing related linux prio idx
#define MAX_PHY_TX_SN ((1<<NUM_BIT_MAX_PHY_TX_SN)-1)
#define AD9361_RADIO_OFF_TX_ATT 89750 //please align with ad9361.c
#define AD9361_RADIO_ON_TX_ATT 000 //please align with rf_init.sh
#define SDR_SUPPORTED_FILTERS \
(FIF_ALLMULTI | \
FIF_BCN_PRBRESP_PROMISC | \
FIF_CONTROL | \
FIF_OTHER_BSS | \
FIF_PSPOLL | \
FIF_PROBE_REQ)
#define HIGH_PRIORITY_DISCARD_FLAG ((~0x040)<<16) // don't force drop OTHER_BSS by high priority discard
//#define HIGH_PRIORITY_DISCARD_FLAG ((~0x140)<<16) // don't force drop OTHER_BSS and PROB_REQ by high priority discard
/* 5G chan 36 - chan 64*/
#define SDR_5GHZ_CH36_64 \
REG_RULE(5150-10, 5350+10, 80, 0, 20, 0)
/* 5G chan 36 - chan 48*/
#define SDR_5GHZ_CH36_48 \
REG_RULE(5150-10, 5270+10, 80, 0, 20, 0)
/*
*Only these channels all allow active
*scan on all world regulatory domains
*/
#define SDR_2GHZ_CH01_13 REG_RULE(2412-10, 2472+10, 40, 0, 20, NL80211_RRF_NO_CCK) // disable 11b
#define SDR_2GHZ_CH01_14 REG_RULE(2412-10, 2484+10, 40, 0, 20, NL80211_RRF_NO_CCK) // disable 11b
// regulatory.h alpha2
// * 00 - World regulatory domain
// * 99 - built by driver but a specific alpha2 cannot be determined
// * 98 - result of an intersection between two regulatory domains
// * 97 - regulatory domain has not yet been configured
static const struct ieee80211_regdomain sdr_regd = { // for wiphy_apply_custom_regulatory
.n_reg_rules = 2,
.alpha2 = "99",
.dfs_region = NL80211_DFS_ETSI,
.reg_rules = {
//SDR_2GHZ_CH01_13,
//SDR_5GHZ_CH36_48, //Avoid radar!
SDR_2GHZ_CH01_14,
SDR_5GHZ_CH36_64,
}
};
#define CHAN2G(_channel, _freq, _flags) { \
.band = NL80211_BAND_2GHZ, \
.hw_value = (_channel), \
.center_freq = (_freq), \
.flags = (_flags), \
.max_antenna_gain = 0, \
.max_power = 0, \
}
#define CHAN5G(_channel, _freq, _flags) { \
.band = NL80211_BAND_5GHZ, \
.hw_value = (_channel), \
.center_freq = (_freq), \
.flags = (_flags), \
.max_antenna_gain = 0, \
.max_power = 0, \
}
static const struct ieee80211_rate openwifi_5GHz_rates[] = {
{ .bitrate = 10, .hw_value = 0, .flags = 0},
{ .bitrate = 20, .hw_value = 1, .flags = 0},
{ .bitrate = 55, .hw_value = 2, .flags = 0},
{ .bitrate = 110, .hw_value = 3, .flags = 0},
{ .bitrate = 60, .hw_value = 4, .flags = IEEE80211_RATE_MANDATORY_A},
{ .bitrate = 90, .hw_value = 5, .flags = IEEE80211_RATE_MANDATORY_A},
{ .bitrate = 120, .hw_value = 6, .flags = IEEE80211_RATE_MANDATORY_A},
{ .bitrate = 180, .hw_value = 7, .flags = IEEE80211_RATE_MANDATORY_A},
{ .bitrate = 240, .hw_value = 8, .flags = IEEE80211_RATE_MANDATORY_A},
{ .bitrate = 360, .hw_value = 9, .flags = IEEE80211_RATE_MANDATORY_A},
{ .bitrate = 480, .hw_value = 10, .flags = IEEE80211_RATE_MANDATORY_A},
{ .bitrate = 540, .hw_value = 11, .flags = IEEE80211_RATE_MANDATORY_A},
};
static const struct ieee80211_rate openwifi_2GHz_rates[] = {
{ .bitrate = 10, .hw_value = 0, .flags = 0},
{ .bitrate = 20, .hw_value = 1, .flags = 0},
{ .bitrate = 55, .hw_value = 2, .flags = 0},
{ .bitrate = 110, .hw_value = 3, .flags = 0},
{ .bitrate = 60, .hw_value = 4, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G},
{ .bitrate = 90, .hw_value = 5, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G},
{ .bitrate = 120, .hw_value = 6, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G},
{ .bitrate = 180, .hw_value = 7, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G},
{ .bitrate = 240, .hw_value = 8, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G},
{ .bitrate = 360, .hw_value = 9, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G},
{ .bitrate = 480, .hw_value = 10, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G},
{ .bitrate = 540, .hw_value = 11, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G},
};
static const struct ieee80211_channel openwifi_2GHz_channels[] = {
CHAN2G(1, 2412, 0),
CHAN2G(2, 2417, 0),
CHAN2G(3, 2422, 0),
CHAN2G(4, 2427, 0),
CHAN2G(5, 2432, 0),
CHAN2G(6, 2437, 0),
CHAN2G(7, 2442, 0),
CHAN2G(8, 2447, 0),
CHAN2G(9, 2452, 0),
CHAN2G(10, 2457, 0),
CHAN2G(11, 2462, 0),
CHAN2G(12, 2467, 0),
CHAN2G(13, 2472, 0),
CHAN2G(14, 2484, 0),
};
static const struct ieee80211_channel openwifi_5GHz_channels[] = {
CHAN5G(36, 5180, 0),
CHAN5G(38, 5190, 0),
CHAN5G(40, 5200, 0),
CHAN5G(42, 5210, 0),
CHAN5G(44, 5220, 0),
CHAN5G(46, 5230, 0),
CHAN5G(48, 5240, 0),
CHAN5G(52, 5260, IEEE80211_CHAN_RADAR),
CHAN5G(56, 5280, IEEE80211_CHAN_RADAR),
CHAN5G(60, 5300, IEEE80211_CHAN_RADAR),
CHAN5G(64, 5320, IEEE80211_CHAN_RADAR),
// CHAN5G(100, 5500, 0),
// CHAN5G(104, 5520, 0),
// CHAN5G(108, 5540, 0),
// CHAN5G(112, 5560, 0),
// CHAN5G(116, 5580, 0),
// CHAN5G(120, 5600, 0),
// CHAN5G(124, 5620, 0),
// CHAN5G(128, 5640, 0),
// CHAN5G(132, 5660, 0),
// CHAN5G(136, 5680, 0),
// CHAN5G(140, 5700, 0),
// CHAN5G(144, 5720, 0),
// CHAN5G(149, 5745, 0),
// CHAN5G(153, 5765, 0),
// CHAN5G(157, 5785, 0),
// CHAN5G(161, 5805, 0),
// CHAN5G(165, 5825, 0),
// CHAN5G(169, 5845, 0),
};
static const struct ieee80211_iface_limit openwifi_if_limits[] = {
{ .max = MAX_NUM_VIF, .types = BIT(NL80211_IFTYPE_STATION) },
{ .max = MAX_NUM_VIF, .types =
#ifdef CONFIG_MAC80211_MESH
BIT(NL80211_IFTYPE_MESH_POINT) |
#endif
BIT(NL80211_IFTYPE_AP)},
};
static const struct ieee80211_iface_combination openwifi_if_comb = {
.limits = openwifi_if_limits,
.n_limits = ARRAY_SIZE(openwifi_if_limits),
.max_interfaces = MAX_NUM_VIF,
.num_different_channels = 1,
.radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
BIT(NL80211_CHAN_WIDTH_20) |
BIT(NL80211_CHAN_WIDTH_40) |
BIT(NL80211_CHAN_WIDTH_80),
};
static const u8 wifi_rate_table_mapping[24] = { 0, 0, 0, 0, 0, 0, 0, 0, 10, 8, 6, 4, 11, 9, 7, 5, 0, 1, 2, 3, 4, 5, 6, 7};
static const u16 wifi_rate_table[24] = { 0, 0, 0, 0, 0, 0, 0, 0, 480, 240, 120, 60, 540, 360, 180, 90, 65, 130, 195, 260, 390, 520, 585, 650};
static const u16 wifi_rate_all[20] = {10, 20, 55, 110, 60, 90, 120, 180, 240, 360, 480, 540, 65, 130, 195, 260, 390, 520, 585, 650};
static const u8 wifi_mcs_table_11b_force_up[16] = {11, 11, 11, 11, 11, 15, 10, 14, 9, 13, 8, 12, 0, 0, 0, 0};
static const u16 wifi_n_dbps_table[16] = {24, 24, 24, 24, 24, 36, 48, 72, 96, 144, 192, 216, 0, 0, 0, 0};
static const u16 wifi_n_dbps_ht_table[16] = {26, 26, 26, 26, 26, 52, 78, 104, 156, 208, 234, 260, 0, 0, 0, 0};
// static const u8 wifi_mcs_table[8] = {6,9,12,18,24,36,48,54};
// static const u8 wifi_mcs_table_phy_tx[8] = {11,15,10,14,9,13,8,12};
// ===== copy from adi-linux/drivers/iio/frequency/cf_axi_dds.c =====
struct cf_axi_dds_state {
struct device *dev_spi;
struct clk *clk;
struct cf_axi_dds_chip_info *chip_info;
struct gpio_desc *plddrbypass_gpio;
struct gpio_desc *interpolation_gpio;
bool standalone;
bool dp_disable;
bool enable;
bool pl_dma_fifo_en;
enum fifo_ctrl gpio_dma_fifo_ctrl;
struct iio_info iio_info;
size_t regs_size;
void __iomem *regs;
void __iomem *slave_regs;
void __iomem *master_regs;
u64 dac_clk;
unsigned int ddr_dds_interp_en;
unsigned int cached_freq[16];
unsigned int version;
unsigned int have_slave_channels;
unsigned int interpolation_factor;
struct notifier_block clk_nb;
};
// ===== end of copy from adi-linux/drivers/iio/frequency/cf_axi_dds.c =====
#define RX_DMA_CYCLIC_MODE
struct openwifi_priv {
struct platform_device *pdev;
struct ieee80211_vif *vif[MAX_NUM_VIF];
const struct openwifi_rf_ops *rf;
enum openwifi_fpga_type fpga_type;
struct cf_axi_dds_state *dds_st; //axi_ad9361 hdl ref design module, dac channel
struct axiadc_state *adc_st; //axi_ad9361 hdl ref design module, adc channel
struct ad9361_rf_phy *ad9361_phy; //ad9361 chip
struct ctrl_outs_control ctrl_out;
int rx_freq_offset_to_lo_MHz;
int tx_freq_offset_to_lo_MHz;
u32 rf_bw;
u32 actual_rx_lo;
struct ieee80211_rate rates_2GHz[12];
struct ieee80211_rate rates_5GHz[12];
struct ieee80211_channel channels_2GHz[14];
struct ieee80211_channel channels_5GHz[11];
struct ieee80211_supported_band band_2GHz;
struct ieee80211_supported_band band_5GHz;
bool rfkill_off;
int rssi_correction; // dynamic RSSI correction according to current channel in _rf_set_channel()
enum rx_intf_mode rx_intf_cfg;
enum tx_intf_mode tx_intf_cfg;
enum openofdm_rx_mode openofdm_rx_cfg;
enum openofdm_tx_mode openofdm_tx_cfg;
enum xpu_mode xpu_cfg;
int irq_rx;
int irq_tx;
// u32 call_counter;
u8 *rx_cyclic_buf;
dma_addr_t rx_cyclic_buf_dma_mapping_addr;
struct dma_chan *rx_chan;
struct dma_async_tx_descriptor *rxd;
dma_cookie_t rx_cookie;
struct openwifi_ring tx_ring[MAX_NUM_SW_QUEUE];
struct scatterlist tx_sg;
struct dma_chan *tx_chan;
struct dma_async_tx_descriptor *txd;
dma_cookie_t tx_cookie;
// struct completion tx_dma_complete;
// bool openwifi_tx_first_time_run;
// int phy_tx_sn;
u32 slice_idx;
u32 dest_mac_addr_queue_map[MAX_NUM_HW_QUEUE];
u8 mac_addr[ETH_ALEN];
u16 seqno;
bool use_short_slot;
u8 band;
u16 channel, tid;
u32 ampdu_reference;
u32 drv_rx_reg_val[MAX_NUM_DRV_REG];
u32 drv_tx_reg_val[MAX_NUM_DRV_REG];
u32 drv_xpu_reg_val[MAX_NUM_DRV_REG];
int last_auto_fpga_lbt_th;
// u8 num_led;
// struct led_classdev *led[MAX_NUM_LED];//zc706 has 4 user leds. please find openwifi_dev_probe to see how we get them.
// char led_name[MAX_NUM_LED][OPENWIFI_LED_MAX_NAME_LEN];
spinlock_t lock;
};
#endif /* OPENWIFI_SDR */
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