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openwifi/driver/sdr.h
Xianjun Jiao 0a92505df2 add recent update: 
1. add git revision software register 7 to DRV_XPU module (not FPGA XPU module)
2. fix the print of hdr->seq_ctrl in sdr.c
3. add ht_flag display to sdr.c
4. remove the sysid from devicetree because new we have our own git revision read back solution in FPGA (XPU register 63) and driver (the sotware register 7 of drv_xpu)
5. add sudo to update_sdcard.sh to make the image generation without SD card in the test-bed easier
2020-09-04 10:57:04 +02:00

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// Xianjun jiao. putaoshu@msn.com; xianjun.jiao@imec.be
#ifndef OPENWIFI_SDR
#define OPENWIFI_SDR
// -------------------for leds--------------------------------
struct gpio_led_data { //pleas 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 { //pleas 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;
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_PRINT_CFG (MAX_NUM_DRV_REG-1)
#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 RING_ROOM_THRESHOLD 4
#define NUM_TX_BD 64 // !!! should align to the fifo size in tx_bit_intf.v
#define NUM_RX_BD 16
#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 = 2048, .types = BIT(NL80211_IFTYPE_STATION) },
{ .max = 4, .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 = 2048,
.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[16] = { 0, 0, 0, 0, 0, 0, 0, 0, 10, 8, 6, 4, 11, 9, 7, 5};
static const u8 wifi_rate_table[16] = { 0, 0, 0, 0, 0, 0, 0, 0, 48, 24, 12, 6, 54, 36, 18, 9};
static const u8 wifi_rate_all[16] = { 1, 2, 5, 11, 6, 9, 12, 18, 24, 36, 48, 54, 0, 0, 0, 0};
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 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;
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;
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];
// 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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