/*
* Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
*
* 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.
*/
#include <linux/delay.h>
#include "mt76x2.h"
#include "mt76x2_eeprom.h"
#include "mt76x2_mcu.h"
struct mt76x2_reg_pair {
u32 reg;
u32 value;
};
static bool
mt76x2_wait_for_mac(struct mt76x2_dev *dev)
{
int i;
for (i = 0; i < 500; i++) {
switch (mt76_rr(dev, MT_MAC_CSR0)) {
case 0:
case ~0:
break;
default:
return true;
}
usleep_range(5000, 10000);
}
return false;
}
static bool
wait_for_wpdma(struct mt76x2_dev *dev)
{
return mt76_poll(dev, MT_WPDMA_GLO_CFG,
MT_WPDMA_GLO_CFG_TX_DMA_BUSY |
MT_WPDMA_GLO_CFG_RX_DMA_BUSY,
0, 1000);
}
static void
mt76x2_mac_pbf_init(struct mt76x2_dev *dev)
{
u32 val;
val = MT_PBF_SYS_CTRL_MCU_RESET |
MT_PBF_SYS_CTRL_DMA_RESET |
MT_PBF_SYS_CTRL_MAC_RESET |
MT_PBF_SYS_CTRL_PBF_RESET |
MT_PBF_SYS_CTRL_ASY_RESET;
mt76_set(dev, MT_PBF_SYS_CTRL, val);
mt76_clear(dev, MT_PBF_SYS_CTRL, val);
mt76_wr(dev, MT_PBF_TX_MAX_PCNT, 0xefef3f1f);
mt76_wr(dev, MT_PBF_RX_MAX_PCNT, 0xfebf);
}
static void
mt76x2_write_reg_pairs(struct mt76x2_dev *dev,
const struct mt76x2_reg_pair *data, int len)
{
while (len > 0) {
mt76_wr(dev, data->reg, data->value);
len--;
data++;
}
}
static void
mt76_write_mac_initvals(struct mt76x2_dev *dev)
{
#define DEFAULT_PROT_CFG \
(FIELD_PREP(MT_PROT_CFG_RATE, 0x2004) | \
FIELD_PREP(MT_PROT_CFG_NAV, 1) | \
FIELD_PREP(MT_PROT_CFG_TXOP_ALLOW, 0x3f) | \
MT_PROT_CFG_RTS_THRESH)
#define DEFAULT_PROT_CFG_20 \
(FIELD_PREP(MT_PROT_CFG_RATE, 0x2004) | \
FIELD_PREP(MT_PROT_CFG_CTRL, 1) | \
FIELD_PREP(MT_PROT_CFG_NAV, 1) | \
FIELD_PREP(MT_PROT_CFG_TXOP_ALLOW, 0x17))
#define DEFAULT_PROT_CFG_40 \
(FIELD_PREP(MT_PROT_CFG_RATE, 0x2084) | \
FIELD_PREP(MT_PROT_CFG_CTRL, 1) | \
FIELD_PREP(MT_PROT_CFG_NAV, 1) | \
FIELD_PREP(MT_PROT_CFG_TXOP_ALLOW, 0x3f))
static const struct mt76x2_reg_pair vals[] = {
/* Copied from MediaTek reference source */
{ MT_PBF_SYS_CTRL, 0x00080c00 },
{ MT_PBF_CFG, 0x1efebcff },
{ MT_FCE_PSE_CTRL, 0x00000001 },
{ MT_MAC_SYS_CTRL, 0x0000000c },
{ MT_MAX_LEN_CFG, 0x003e3f00 },
{ MT_AMPDU_MAX_LEN_20M1S, 0xaaa99887 },
{ MT_AMPDU_MAX_LEN_20M2S, 0x000000aa },
{ MT_XIFS_TIME_CFG, 0x33a40d0a },
{ MT_BKOFF_SLOT_CFG, 0x00000209 },
{ MT_TBTT_SYNC_CFG, 0x00422010 },
{ MT_PWR_PIN_CFG, 0x00000000 },
{ 0x1238, 0x001700c8 },
{ MT_TX_SW_CFG0, 0x00101001 },
{ MT_TX_SW_CFG1, 0x00010000 },
{ MT_TX_SW_CFG2, 0x00000000 },
{ MT_TXOP_CTRL_CFG, 0x0400583f },
{ MT_TX_RTS_CFG, 0x00100020 },
{ MT_TX_TIMEOUT_CFG, 0x000a2290 },
{ MT_TX_RETRY_CFG, 0x47f01f0f },
{ MT_EXP_ACK_TIME, 0x002c00dc },
{ MT_TX_PROT_CFG6, 0xe3f42004 },
{ MT_TX_PROT_CFG7, 0xe3f42084 },
{ MT_TX_PROT_CFG8, 0xe3f42104 },
{ MT_PIFS_TX_CFG, 0x00060fff },
{ MT_RX_FILTR_CFG, 0x00015f97 },
{ MT_LEGACY_BASIC_RATE, 0x0000017f },
{ MT_HT_BASIC_RATE, 0x00004003 },
{ MT_PN_PAD_MODE, 0x00000002 },
{ MT_TXOP_HLDR_ET, 0x00000002 },
{ 0xa44, 0x00000000 },
{ MT_HEADER_TRANS_CTRL_REG, 0x00000000 },
{ MT_TSO_CTRL, 0x00000000 },
{ MT_AUX_CLK_CFG, 0x00000000 },
{ MT_DACCLK_EN_DLY_CFG, 0x00000000 },
{ MT_TX_ALC_CFG_4, 0x00000000 },
{ MT_TX_ALC_VGA3, 0x00000000 },
{ MT_TX_PWR_CFG_0, 0x3a3a3a3a },
{ MT_TX_PWR_CFG_1, 0x3a3a3a3a },
{ MT_TX_PWR_CFG_2, 0x3a3a3a3a },
{ MT_TX_PWR_CFG_3, 0x3a3a3a3a },
{ MT_TX_PWR_CFG_4, 0x3a3a3a3a },
{ MT_TX_PWR_CFG_7, 0x3a3a3a3a },
{ MT_TX_PWR_CFG_8, 0x0000003a },
{ MT_TX_PWR_CFG_9, 0x0000003a },
{ MT_EFUSE_CTRL, 0x0000d000 },
{ MT_PAUSE_ENABLE_CONTROL1, 0x0000000a },
{ MT_FCE_WLAN_FLOW_CONTROL1, 0x60401c18 },
{ MT_WPDMA_DELAY_INT_CFG, 0x94ff0000 },
{ MT_TX_SW_CFG3, 0x00000004 },
{ MT_HT_FBK_TO_LEGACY, 0x00001818 },
{ MT_VHT_HT_FBK_CFG1, 0xedcba980 },
{ MT_PROT_AUTO_TX_CFG, 0x00830083 },
{ MT_HT_CTRL_CFG, 0x000001ff },
};
struct mt76x2_reg_pair prot_vals[] = {
{ MT_CCK_PROT_CFG, DEFAULT_PROT_CFG },
{ MT_OFDM_PROT_CFG, DEFAULT_PROT_CFG },
{ MT_MM20_PROT_CFG, DEFAULT_PROT_CFG_20 },
{ MT_MM40_PROT_CFG, DEFAULT_PROT_CFG_40 },
{ MT_GF20_PROT_CFG, DEFAULT_PROT_CFG_20 },
{ MT_GF40_PROT_CFG, DEFAULT_PROT_CFG_40 },
};
mt76x2_write_reg_pairs(dev, vals, ARRAY_SIZE(vals));
mt76x2_write_reg_pairs(dev, prot_vals, ARRAY_SIZE(prot_vals));
}
static void
mt76x2_fixup_xtal(struct mt76x2_dev *dev)
{
u16 eep_val;
s8 offset = 0;
eep_val = mt76x2_eeprom_get(dev, MT_EE_XTAL_TRIM_2);
offset = eep_val & 0x7f;
if ((eep_val & 0xff) == 0xff)
offset = 0;
else if (eep_val & 0x80)
offset = 0 - offset;
eep_val >>= 8;
if (eep_val == 0x00 || eep_val == 0xff) {
eep_val = mt76x2_eeprom_get(dev, MT_EE_XTAL_TRIM_1);
eep_val &= 0xff;
if (eep_val == 0x00 || eep_val == 0xff)
eep_val = 0x14;
}
eep_val &= 0x7f;
mt76_rmw_field(dev, MT_XO_CTRL5, MT_XO_CTRL5_C2_VAL, eep_val + offset);
mt76_set(dev, MT_XO_CTRL6, MT_XO_CTRL6_C2_CTRL);
eep_val = mt76x2_eeprom_get(dev, MT_EE_NIC_CONF_2);
switch (FIELD_GET(MT_EE_NIC_CONF_2_XTAL_OPTION, eep_val)) {
case 0:
mt76_wr(dev, MT_XO_CTRL7, 0x5c1fee80);
break;
case 1:
mt76_wr(dev, MT_XO_CTRL7, 0x5c1feed0);
break;
default:
break;
}
}
static void
mt76x2_init_beacon_offsets(struct mt76x2_dev *dev)
{
u16 base = MT_BEACON_BASE;
u32 regs[4] = {};
int i;
for (i = 0; i < 16; i++) {
u16 addr = dev->beacon_offsets[i];
regs[i / 4] |= ((addr - base) / 64) << (8 * (i % 4));
}
for (i = 0; i < 4; i++)
mt76_wr(dev, MT_BCN_OFFSET(i), regs[i]);
}
int mt76x2_mac_reset(struct mt76x2_dev *dev, bool hard)
{
static const u8 null_addr[ETH_ALEN] = {};
const u8 *macaddr = dev->mt76.macaddr;
u32 val;
int i, k;
if (!mt76x2_wait_for_mac(dev))
return -ETIMEDOUT;
val = mt76_rr(dev, MT_WPDMA_GLO_CFG);
val &= ~(MT_WPDMA_GLO_CFG_TX_DMA_EN |
MT_WPDMA_GLO_CFG_TX_DMA_BUSY |
MT_WPDMA_GLO_CFG_RX_DMA_EN |
MT_WPDMA_GLO_CFG_RX_DMA_BUSY |
MT_WPDMA_GLO_CFG_DMA_BURST_SIZE);
val |= FIELD_PREP(MT_WPDMA_GLO_CFG_DMA_BURST_SIZE, 3);
mt76_wr(dev, MT_WPDMA_GLO_CFG, val);
mt76x2_mac_pbf_init(dev);
mt76_write_mac_initvals(dev);
mt76x2_fixup_xtal(dev);
mt76_clear(dev, MT_MAC_SYS_CTRL,
MT_MAC_SYS_CTRL_RESET_CSR |
MT_MAC_SYS_CTRL_RESET_BBP);
if (is_mt7612(dev))
mt76_clear(dev, MT_COEXCFG0, MT_COEXCFG0_COEX_EN);
mt76_set(dev, MT_EXT_CCA_CFG, 0x0000f000);
mt76_clear(dev, MT_TX_ALC_CFG_4, BIT(31));
mt76_wr(dev, MT_RF_BYPASS_0, 0x06000000);
mt76_wr(dev, MT_RF_SETTING_0, 0x08800000);
usleep_range(5000, 10000);
mt76_wr(dev, MT_RF_BYPASS_0, 0x00000000);
mt76_wr(dev, MT_MCU_CLOCK_CTL, 0x1401);
mt76_clear(dev, MT_FCE_L2_STUFF, MT_FCE_L2_STUFF_WR_MPDU_LEN_EN);
mt76_wr(dev, MT_MAC_ADDR_DW0, get_unaligned_le32(macaddr));
mt76_wr(dev, MT_MAC_ADDR_DW1, get_unaligned_le16(macaddr + 4));
mt76_wr(dev, MT_MAC_BSSID_DW0, get_unaligned_le32(macaddr));
mt76_wr(dev, MT_MAC_BSSID_DW1, get_unaligned_le16(macaddr + 4) |
FIELD_PREP(MT_MAC_BSSID_DW1_MBSS_MODE, 3) | /* 8 beacons */
MT_MAC_BSSID_DW1_MBSS_LOCAL_BIT);
/* Fire a pre-TBTT interrupt 8 ms before TBTT */
mt76_rmw_field(dev, MT_INT_TIMER_CFG, MT_INT_TIMER_CFG_PRE_TBTT,
8 << 4);
mt76_rmw_field(dev, MT_INT_TIMER_CFG, MT_INT_TIMER_CFG_GP_TIMER,
MT_DFS_GP_INTERVAL);
mt76_wr(dev, MT_INT_TIMER_EN, 0);
mt76_wr(dev, MT_BCN_BYPASS_MASK, 0xffff);
if (!hard)
return 0;
for (i = 0; i < 256 / 32; i++)
mt76_wr(dev, MT_WCID_DROP_BASE + i * 4, 0);
for (i = 0; i < 256; i++)
mt76x2_mac_wcid_setup(dev, i, 0, NULL);
for (i = 0; i < 16; i++)
for (k = 0; k < 4; k++)
mt76x2_mac_shared_key_setup(dev, i, k, NULL);
for (i = 0; i < 8; i++) {
mt76x2_mac_set_bssid(dev, i, null_addr);
mt76x2_mac_set_beacon(dev, i, NULL);
}
for (i = 0; i < 16; i++)
mt76_rr(dev, MT_TX_STAT_FIFO);
mt76_wr(dev, MT_CH_TIME_CFG,
MT_CH_TIME_CFG_TIMER_EN |
MT_CH_TIME_CFG_TX_AS_BUSY |
MT_CH_TIME_CFG_RX_AS_BUSY |
MT_CH_TIME_CFG_NAV_AS_BUSY |
MT_CH_TIME_CFG_EIFS_AS_BUSY |
FIELD_PREP(MT_CH_TIME_CFG_CH_TIMER_CLR, 1));
mt76x2_init_beacon_offsets(dev);
mt76x2_set_tx_ackto(dev);
return 0;
}
int mt76x2_mac_start(struct mt76x2_dev *dev)
{
int i;
for (i = 0; i < 16; i++)
mt76_rr(dev, MT_TX_AGG_CNT(i));
for (i = 0; i < 16; i++)
mt76_rr(dev, MT_TX_STAT_FIFO);
memset(dev->aggr_stats, 0, sizeof(dev->aggr_stats));
mt76_wr(dev, MT_MAC_SYS_CTRL, MT_MAC_SYS_CTRL_ENABLE_TX);
wait_for_wpdma(dev);
usleep_range(50, 100);
mt76_set(dev, MT_WPDMA_GLO_CFG,
MT_WPDMA_GLO_CFG_TX_DMA_EN |
MT_WPDMA_GLO_CFG_RX_DMA_EN);
mt76_clear(dev, MT_WPDMA_GLO_CFG, MT_WPDMA_GLO_CFG_TX_WRITEBACK_DONE);
mt76_wr(dev, MT_RX_FILTR_CFG, dev->rxfilter);
mt76_wr(dev, MT_MAC_SYS_CTRL,
MT_MAC_SYS_CTRL_ENABLE_TX |
MT_MAC_SYS_CTRL_ENABLE_RX);
mt76x2_irq_enable(dev, MT_INT_RX_DONE_ALL | MT_INT_TX_DONE_ALL |
MT_INT_TX_STAT);
return 0;
}
void mt76x2_mac_stop(struct mt76x2_dev *dev, bool force)
{
bool stopped = false;
u32 rts_cfg;
int i;
mt76_wr(dev, MT_MAC_SYS_CTRL, 0);
rts_cfg = mt76_rr(dev, MT_TX_RTS_CFG);
mt76_wr(dev, MT_TX_RTS_CFG, rts_cfg & ~MT_TX_RTS_CFG_RETRY_LIMIT);
/* Wait for MAC to become idle */
for (i = 0; i < 300; i++) {
if (mt76_rr(dev, MT_MAC_STATUS) &
(MT_MAC_STATUS_RX | MT_MAC_STATUS_TX))
continue;
if (mt76_rr(dev, MT_BBP(IBI, 12)))
continue;
stopped = true;
break;
}
if (force && !stopped) {
mt76_set(dev, MT_BBP(CORE, 4), BIT(1));
mt76_clear(dev, MT_BBP(CORE, 4), BIT(1));
mt76_set(dev, MT_BBP(CORE, 4), BIT(0));
mt76_clear(dev, MT_BBP(CORE, 4), BIT(0));
}
mt76_wr(dev, MT_TX_RTS_CFG, rts_cfg);
}
void mt76x2_mac_resume(struct mt76x2_dev *dev)
{
mt76_wr(dev, MT_MAC_SYS_CTRL,
MT_MAC_SYS_CTRL_ENABLE_TX |
MT_MAC_SYS_CTRL_ENABLE_RX);
}
static void
mt76x2_power_on_rf_patch(struct mt76x2_dev *dev)
{
mt76_set(dev, 0x10130, BIT(0) | BIT(16));
udelay(1);
mt76_clear(dev, 0x1001c, 0xff);
mt76_set(dev, 0x1001c, 0x30);
mt76_wr(dev, 0x10014, 0x484f);
udelay(1);
mt76_set(dev, 0x10130, BIT(17));
udelay(125);
mt76_clear(dev, 0x10130, BIT(16));
udelay(50);
mt76_set(dev, 0x1014c, BIT(19) | BIT(20));
}
static void
mt76x2_power_on_rf(struct mt76x2_dev *dev, int unit)
{
int shift = unit ? 8 : 0;
/* Enable RF BG */
mt76_set(dev, 0x10130, BIT(0) << shift);
udelay(10);
/* Enable RFDIG LDO/AFE/ABB/ADDA */
mt76_set(dev, 0x10130, (BIT(1) | BIT(3) | BIT(4) | BIT(5)) << shift);
udelay(10);
/* Switch RFDIG power to internal LDO */
mt76_clear(dev, 0x10130, BIT(2) << shift);
udelay(10);
mt76x2_power_on_rf_patch(dev);
mt76_set(dev, 0x530, 0xf);
}
static void
mt76x2_power_on(struct mt76x2_dev *dev)
{
u32 val;
/* Turn on WL MTCMOS */
mt76_set(dev, MT_WLAN_MTC_CTRL, MT_WLAN_MTC_CTRL_MTCMOS_PWR_UP);
val = MT_WLAN_MTC_CTRL_STATE_UP |
MT_WLAN_MTC_CTRL_PWR_ACK |
MT_WLAN_MTC_CTRL_PWR_ACK_S;
mt76_poll(dev, MT_WLAN_MTC_CTRL, val, val, 1000);
mt76_clear(dev, MT_WLAN_MTC_CTRL, 0x7f << 16);
udelay(10);
mt76_clear(dev, MT_WLAN_MTC_CTRL, 0xf << 24);
udelay(10);
mt76_set(dev, MT_WLAN_MTC_CTRL, 0xf << 24);
mt76_clear(dev, MT_WLAN_MTC_CTRL, 0xfff);
/* Turn on AD/DA power down */
mt76_clear(dev, 0x11204, BIT(3));
/* WLAN function enable */
mt76_set(dev, 0x10080, BIT(0));
/* Release BBP software reset */
mt76_clear(dev, 0x10064, BIT(18));
mt76x2_power_on_rf(dev, 0);
mt76x2_power_on_rf(dev, 1);
}
void mt76x2_set_tx_ackto(struct mt76x2_dev *dev)
{
u8 ackto, sifs, slottime = dev->slottime;
slottime += 3 * dev->coverage_class;
sifs = mt76_get_field(dev, MT_XIFS_TIME_CFG,
MT_XIFS_TIME_CFG_OFDM_SIFS);
ackto = slottime + sifs;
mt76_rmw_field(dev, MT_TX_TIMEOUT_CFG,
MT_TX_TIMEOUT_CFG_ACKTO, ackto);
}
static void
mt76x2_set_wlan_state(struct mt76x2_dev *dev, bool enable)
{
u32 val = mt76_rr(dev, MT_WLAN_FUN_CTRL);
if (enable)
val |= (MT_WLAN_FUN_CTRL_WLAN_EN |
MT_WLAN_FUN_CTRL_WLAN_CLK_EN);
else
val &= ~(MT_WLAN_FUN_CTRL_WLAN_EN |
MT_WLAN_FUN_CTRL_WLAN_CLK_EN);
mt76_wr(dev, MT_WLAN_FUN_CTRL, val);
udelay(20);
}
static void
mt76x2_reset_wlan(struct mt76x2_dev *dev, bool enable)
{
u32 val;
val = mt76_rr(dev, MT_WLAN_FUN_CTRL);
val &= ~MT_WLAN_FUN_CTRL_FRC_WL_ANT_SEL;
if (val & MT_WLAN_FUN_CTRL_WLAN_EN) {
val |= MT_WLAN_FUN_CTRL_WLAN_RESET_RF;
mt76_wr(dev, MT_WLAN_FUN_CTRL, val);
udelay(20);
val &= ~MT_WLAN_FUN_CTRL_WLAN_RESET_RF;
}
mt76_wr(dev, MT_WLAN_FUN_CTRL, val);
udelay(20);
mt76x2_set_wlan_state(dev, enable);
}
int mt76x2_init_hardware(struct mt76x2_dev *dev)
{
static const u16 beacon_offsets[16] = {
/* 1024 byte per beacon */
0xc000,
0xc400,
0xc800,
0xcc00,
0xd000,
0xd400,
0xd800,
0xdc00,
/* BSS idx 8-15 not used for beacons */
0xc000,
0xc000,
0xc000,
0xc000,
0xc000,
0xc000,
0xc000,
0xc000,
};
u32 val;
int ret;
dev->beacon_offsets = beacon_offsets;
tasklet_init(&dev->pre_tbtt_tasklet, mt76x2_pre_tbtt_tasklet,
(unsigned long) dev);
dev->chainmask = 0x202;
dev->global_wcid.idx = 255;
dev->global_wcid.hw_key_idx = -1;
dev->slottime = 9;
val = mt76_rr(dev, MT_WPDMA_GLO_CFG);
val &= MT_WPDMA_GLO_CFG_DMA_BURST_SIZE |
MT_WPDMA_GLO_CFG_BIG_ENDIAN |
MT_WPDMA_GLO_CFG_HDR_SEG_LEN;
val |= MT_WPDMA_GLO_CFG_TX_WRITEBACK_DONE;
mt76_wr(dev, MT_WPDMA_GLO_CFG, val);
mt76x2_reset_wlan(dev, true);
mt76x2_power_on(dev);
ret = mt76x2_eeprom_init(dev);
if (ret)
return ret;
ret = mt76x2_mac_reset(dev, true);
if (ret)
return ret;
dev->rxfilter = mt76_rr(dev, MT_RX_FILTR_CFG);
ret = mt76x2_dma_init(dev);
if (ret)
return ret;
set_bit(MT76_STATE_INITIALIZED, &dev->mt76.state);
ret = mt76x2_mac_start(dev);
if (ret)
return ret;
ret = mt76x2_mcu_init(dev);
if (ret)
return ret;
mt76x2_mac_stop(dev, false);
return 0;
}
void mt76x2_stop_hardware(struct mt76x2_dev *dev)
{
cancel_delayed_work_sync(&dev->cal_work);
cancel_delayed_work_sync(&dev->mac_work);
mt76x2_mcu_set_radio_state(dev, false);
mt76x2_mac_stop(dev, false);
}
void mt76x2_cleanup(struct mt76x2_dev *dev)
{
mt76x2_stop_hardware(dev);
mt76x2_dma_cleanup(dev);
mt76x2_mcu_cleanup(dev);
}
struct mt76x2_dev *mt76x2_alloc_device(struct device *pdev)
{
static const struct mt76_driver_ops drv_ops = {
.txwi_size = sizeof(struct mt76x2_txwi),
.update_survey = mt76x2_update_channel,
.tx_prepare_skb = mt76x2_tx_prepare_skb,
.tx_complete_skb = mt76x2_tx_complete_skb,
.rx_skb = mt76x2_queue_rx_skb,
.rx_poll_complete = mt76x2_rx_poll_complete,
};
struct ieee80211_hw *hw;
struct mt76x2_dev *dev;
hw = ieee80211_alloc_hw(sizeof(*dev), &mt76x2_ops);
if (!hw)
return NULL;
dev = hw->priv;
dev->mt76.dev = pdev;
dev->mt76.hw = hw;
dev->mt76.drv = &drv_ops;
mutex_init(&dev->mutex);
spin_lock_init(&dev->irq_lock);
return dev;
}
static void mt76x2_regd_notifier(struct wiphy *wiphy,
struct regulatory_request *request)
{
struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
struct mt76x2_dev *dev = hw->priv;
dev->dfs_pd.region = request->dfs_region;
}
#define CCK_RATE(_idx, _rate) { \
.bitrate = _rate, \
.flags = IEEE80211_RATE_SHORT_PREAMBLE, \
.hw_value = (MT_PHY_TYPE_CCK << 8) | _idx, \
.hw_value_short = (MT_PHY_TYPE_CCK << 8) | (8 + _idx), \
}
#define OFDM_RATE(_idx, _rate) { \
.bitrate = _rate, \
.hw_value = (MT_PHY_TYPE_OFDM << 8) | _idx, \
.hw_value_short = (MT_PHY_TYPE_OFDM << 8) | _idx, \
}
static struct ieee80211_rate mt76x2_rates[] = {
CCK_RATE(0, 10),
CCK_RATE(1, 20),
CCK_RATE(2, 55),
CCK_RATE(3, 110),
OFDM_RATE(0, 60),
OFDM_RATE(1, 90),
OFDM_RATE(2, 120),
OFDM_RATE(3, 180),
OFDM_RATE(4, 240),
OFDM_RATE(5, 360),
OFDM_RATE(6, 480),
OFDM_RATE(7, 540),
};
static const struct ieee80211_iface_limit if_limits[] = {
{
.max = 1,
.types = BIT(NL80211_IFTYPE_ADHOC)
}, {
.max = 8,
.types = BIT(NL80211_IFTYPE_STATION) |
#ifdef CONFIG_MAC80211_MESH
BIT(NL80211_IFTYPE_MESH_POINT) |
#endif
BIT(NL80211_IFTYPE_AP)
},
};
static const struct ieee80211_iface_combination if_comb[] = {
{
.limits = if_limits,
.n_limits = ARRAY_SIZE(if_limits),
.max_interfaces = 8,
.num_different_channels = 1,
.beacon_int_infra_match = true,
.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 void mt76x2_led_set_config(struct mt76_dev *mt76, u8 delay_on,
u8 delay_off)
{
struct mt76x2_dev *dev = container_of(mt76, struct mt76x2_dev,
mt76);
u32 val;
val = MT_LED_STATUS_DURATION(0xff) |
MT_LED_STATUS_OFF(delay_off) |
MT_LED_STATUS_ON(delay_on);
mt76_wr(dev, MT_LED_S0(mt76->led_pin), val);
mt76_wr(dev, MT_LED_S1(mt76->led_pin), val);
val = MT_LED_CTRL_REPLAY(mt76->led_pin) |
MT_LED_CTRL_KICK(mt76->led_pin);
if (mt76->led_al)
val |= MT_LED_CTRL_POLARITY(mt76->led_pin);
mt76_wr(dev, MT_LED_CTRL, val);
}
static int mt76x2_led_set_blink(struct led_classdev *led_cdev,
unsigned long *delay_on,
unsigned long *delay_off)
{
struct mt76_dev *mt76 = container_of(led_cdev, struct mt76_dev,
led_cdev);
u8 delta_on, delta_off;
delta_off = max_t(u8, *delay_off / 10, 1);
delta_on = max_t(u8, *delay_on / 10, 1);
mt76x2_led_set_config(mt76, delta_on, delta_off);
return 0;
}
static void mt76x2_led_set_brightness(struct led_classdev *led_cdev,
enum led_brightness brightness)
{
struct mt76_dev *mt76 = container_of(led_cdev, struct mt76_dev,
led_cdev);
if (!brightness)
mt76x2_led_set_config(mt76, 0, 0xff);
else
mt76x2_led_set_config(mt76, 0xff, 0);
}
static void
mt76x2_init_txpower(struct mt76x2_dev *dev,
struct ieee80211_supported_band *sband)
{
struct ieee80211_channel *chan;
struct mt76x2_tx_power_info txp;
struct mt76_rate_power t = {};
int target_power;
int i;
for (i = 0; i < sband->n_channels; i++) {
chan = &sband->channels[i];
mt76x2_get_power_info(dev, &txp, chan);
target_power = max_t(int, (txp.chain[0].target_power +
txp.chain[0].delta),
(txp.chain[1].target_power +
txp.chain[1].delta));
mt76x2_get_rate_power(dev, &t, chan);
chan->max_power = mt76x2_get_max_rate_power(&t) +
target_power;
chan->max_power /= 2;
/* convert to combined output power on 2x2 devices */
chan->max_power += 3;
}
}
int mt76x2_register_device(struct mt76x2_dev *dev)
{
struct ieee80211_hw *hw = mt76_hw(dev);
struct wiphy *wiphy = hw->wiphy;
void *status_fifo;
int fifo_size;
int i, ret;
fifo_size = roundup_pow_of_two(32 * sizeof(struct mt76x2_tx_status));
status_fifo = devm_kzalloc(dev->mt76.dev, fifo_size, GFP_KERNEL);
if (!status_fifo)
return -ENOMEM;
kfifo_init(&dev->txstatus_fifo, status_fifo, fifo_size);
ret = mt76x2_init_hardware(dev);
if (ret)
return ret;
hw->queues = 4;
hw->max_rates = 1;
hw->max_report_rates = 7;
hw->max_rate_tries = 1;
hw->extra_tx_headroom = 2;
hw->sta_data_size = sizeof(struct mt76x2_sta);
hw->vif_data_size = sizeof(struct mt76x2_vif);
for (i = 0; i < ARRAY_SIZE(dev->macaddr_list); i++) {
u8 *addr = dev->macaddr_list[i].addr;
memcpy(addr, dev->mt76.macaddr, ETH_ALEN);
if (!i)
continue;
addr[0] |= BIT(1);
addr[0] ^= ((i - 1) << 2);
}
wiphy->addresses = dev->macaddr_list;
wiphy->n_addresses = ARRAY_SIZE(dev->macaddr_list);
wiphy->iface_combinations = if_comb;
wiphy->n_iface_combinations = ARRAY_SIZE(if_comb);
wiphy->reg_notifier = mt76x2_regd_notifier;
wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_VHT_IBSS);
ieee80211_hw_set(hw, SUPPORTS_HT_CCK_RATES);
INIT_DELAYED_WORK(&dev->cal_work, mt76x2_phy_calibrate);
INIT_DELAYED_WORK(&dev->mac_work, mt76x2_mac_work);
dev->mt76.sband_2g.sband.ht_cap.cap |= IEEE80211_HT_CAP_LDPC_CODING;
dev->mt76.sband_5g.sband.ht_cap.cap |= IEEE80211_HT_CAP_LDPC_CODING;
mt76x2_dfs_init_detector(dev);
/* init led callbacks */
dev->mt76.led_cdev.brightness_set = mt76x2_led_set_brightness;
dev->mt76.led_cdev.blink_set = mt76x2_led_set_blink;
ret = mt76_register_device(&dev->mt76, true, mt76x2_rates,
ARRAY_SIZE(mt76x2_rates));
if (ret)
goto fail;
mt76x2_init_debugfs(dev);
mt76x2_init_txpower(dev, &dev->mt76.sband_2g.sband);
mt76x2_init_txpower(dev, &dev->mt76.sband_5g.sband);
return 0;
fail:
mt76x2_stop_hardware(dev);
return ret;
}
