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mt76: add driver code for MT76x2u based devices

Browse Source 
MT76x2u is a 2x2 USB 802.11ac chipset by MediaTek. This driver currently
support station mode

Tested-by: <cug_yangyuancong@hotmail.com>
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Lorenzo Bianconi 2018-07-31 10:09:20 +02:00 committed by Kalle Valo
parent b40b15e152
commit ee676cd501
12 changed files with 1891 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/net/wireless/mediatek/mt76/Kconfig
View File

@ -17,3 +17,13 @@ config MT76x2E
depends on PCI
---help---
This adds support for MT7612/MT7602/MT7662-based wireless PCIe devices.
config MT76x2U
tristate "MediaTek MT76x2U (USB) support"
select MT76_CORE
select MT76_USB
select MT76x2_COMMON
depends on MAC80211
depends on USB
help
This adds support for MT7612U-based wireless USB dongles.

5
drivers/net/wireless/mediatek/mt76/Makefile
View File

@ -2,6 +2,7 @@ obj-$(CONFIG_MT76_CORE) += mt76.o
obj-$(CONFIG_MT76_USB) += mt76-usb.o
obj-$(CONFIG_MT76x2_COMMON) += mt76x2-common.o
obj-$(CONFIG_MT76x2E) += mt76x2e.o
obj-$(CONFIG_MT76x2U) += mt76x2u.o
mt76-y := \
mmio.o util.o trace.o dma.o mac80211.o debugfs.o eeprom.o tx.o agg-rx.o
@ -22,4 +23,8 @@ mt76x2e-y := \
mt76x2_core.o mt76x2_mac.o mt76x2_mcu.o mt76x2_phy.o \
mt76x2_dfs.o mt76x2_trace.o
mt76x2u-y := \
mt76x2_usb.o mt76x2u_init.o mt76x2u_main.o mt76x2u_mac.o \
mt76x2u_mcu.o mt76x2u_phy.o mt76x2u_core.o
CFLAGS_mt76x2_trace.o := -I$(src)

4
drivers/net/wireless/mediatek/mt76/mt76x2.h
View File

@ -33,6 +33,9 @@
#define MT7662_ROM_PATCH "mt7662_rom_patch.bin"
#define MT7662_EEPROM_SIZE 512
#define MT7662U_FIRMWARE "mediatek/mt7662u.bin"
#define MT7662U_ROM_PATCH "mediatek/mt7662u_rom_patch.bin"
#define MT76x2_RX_RING_SIZE 256
#define MT_RX_HEADROOM 32
@ -55,6 +58,7 @@ struct mt76x2_mcu {
wait_queue_head_t wait;
struct sk_buff_head res_q;
struct mt76u_buf res_u;
u32 msg_seq;
};

30
drivers/net/wireless/mediatek/mt76/mt76x2_regs.h
View File

@ -75,6 +75,21 @@
#define MT_XO_CTRL7 0x011c
#define MT_USB_U3DMA_CFG 0x9018
#define MT_USB_DMA_CFG_RX_BULK_AGG_TOUT GENMASK(7, 0)
#define MT_USB_DMA_CFG_RX_BULK_AGG_LMT GENMASK(15, 8)
#define MT_USB_DMA_CFG_UDMA_TX_WL_DROP BIT(16)
#define MT_USB_DMA_CFG_WAKE_UP_EN BIT(17)
#define MT_USB_DMA_CFG_RX_DROP_OR_PAD BIT(18)
#define MT_USB_DMA_CFG_TX_CLR BIT(19)
#define MT_USB_DMA_CFG_TXOP_HALT BIT(20)
#define MT_USB_DMA_CFG_RX_BULK_AGG_EN BIT(21)
#define MT_USB_DMA_CFG_RX_BULK_EN BIT(22)
#define MT_USB_DMA_CFG_TX_BULK_EN BIT(23)
#define MT_USB_DMA_CFG_EP_OUT_VALID GENMASK(29, 24)
#define MT_USB_DMA_CFG_RX_BUSY BIT(30)
#define MT_USB_DMA_CFG_TX_BUSY BIT(31)
#define MT_WLAN_MTC_CTRL 0x10148
#define MT_WLAN_MTC_CTRL_MTCMOS_PWR_UP BIT(0)
#define MT_WLAN_MTC_CTRL_PWR_ACK BIT(12)
@ -150,6 +165,9 @@
#define MT_TX_HW_QUEUE_MCU 8
#define MT_TX_HW_QUEUE_MGMT 9
#define MT_US_CYC_CFG 0x02a4
#define MT_US_CYC_CNT GENMASK(7, 0)
#define MT_PBF_SYS_CTRL 0x0400
#define MT_PBF_SYS_CTRL_MCU_RESET BIT(0)
#define MT_PBF_SYS_CTRL_DMA_RESET BIT(1)
@ -202,6 +220,11 @@
#define MT_FCE_WLAN_FLOW_CONTROL1 0x0824
#define MT_TX_CPU_FROM_FCE_BASE_PTR 0x09a0
#define MT_TX_CPU_FROM_FCE_MAX_COUNT 0x09a4
#define MT_FCE_PDMA_GLOBAL_CONF 0x09c4
#define MT_FCE_SKIP_FS 0x0a6c
#define MT_PAUSE_ENABLE_CONTROL1 0x0a38
#define MT_MAC_CSR0 0x1000
@ -214,6 +237,7 @@
#define MT_MAC_ADDR_DW0 0x1008
#define MT_MAC_ADDR_DW1 0x100c
#define MT_MAC_ADDR_DW1_U2ME_MASK GENMASK(23, 16)
#define MT_MAC_BSSID_DW0 0x1010
#define MT_MAC_BSSID_DW1 0x1014
@ -351,6 +375,7 @@
#define MT_TX_TIMEOUT_CFG_ACKTO GENMASK(15, 8)
#define MT_TX_RETRY_CFG 0x134c
#define MT_TX_LINK_CFG 0x1350
#define MT_VHT_HT_FBK_CFG1 0x1358
#define MT_PROT_CFG_RATE GENMASK(15, 0)
@ -425,6 +450,7 @@
#define MT_RX_FILTR_CFG_BAR BIT(15)
#define MT_RX_FILTR_CFG_CTRL_RSV BIT(16)
#define MT_AUTO_RSP_CFG 0x1404
#define MT_LEGACY_BASIC_RATE 0x1408
#define MT_HT_BASIC_RATE 0x140c
@ -460,6 +486,10 @@
#define MT_RX_STAT_2_DUP_ERRORS GENMASK(15, 0)
#define MT_RX_STAT_2_OVERFLOW_ERRORS GENMASK(31, 16)
#define MT_TX_STA_0 0x170c
#define MT_TX_STA_1 0x1710
#define MT_TX_STA_2 0x1714
#define MT_TX_STAT_FIFO 0x1718
#define MT_TX_STAT_FIFO_VALID BIT(0)
#define MT_TX_STAT_FIFO_SUCCESS BIT(5)

142
drivers/net/wireless/mediatek/mt76/mt76x2_usb.c Normal file
View File

@ -0,0 +1,142 @@
/*
* Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@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.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include "mt76x2u.h"
static const struct usb_device_id mt76x2u_device_table[] = {
{ USB_DEVICE(0x0b05, 0x1833) }, /* Asus USB-AC54 */
{ USB_DEVICE(0x0b05, 0x17eb) }, /* Asus USB-AC55 */
{ USB_DEVICE(0x0b05, 0x180b) }, /* Asus USB-N53 B1 */
{ USB_DEVICE(0x0e8d, 0x7612) }, /* Aukey USB-AC1200 */
{ USB_DEVICE(0x057c, 0x8503) }, /* Avm FRITZ!WLAN AC860 */
{ USB_DEVICE(0x7392, 0xb711) }, /* Edimax EW 7722 UAC */
{ USB_DEVICE(0x0846, 0x9053) }, /* Netgear A6210 */
{ USB_DEVICE(0x045e, 0x02e6) }, /* XBox One Wireless Adapter */
{ },
};
static int mt76x2u_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
struct usb_device *udev = interface_to_usbdev(intf);
struct mt76x2_dev *dev;
int err;
dev = mt76x2u_alloc_device(&intf->dev);
if (!dev)
return -ENOMEM;
udev = usb_get_dev(udev);
usb_reset_device(udev);
err = mt76u_init(&dev->mt76, intf);
if (err < 0)
goto err;
dev->mt76.rev = mt76_rr(dev, MT_ASIC_VERSION);
dev_info(dev->mt76.dev, "ASIC revision: %08x\n", dev->mt76.rev);
err = mt76x2u_register_device(dev);
if (err < 0)
goto err;
return 0;
err:
ieee80211_free_hw(mt76_hw(dev));
usb_set_intfdata(intf, NULL);
usb_put_dev(udev);
return err;
}
static void mt76x2u_disconnect(struct usb_interface *intf)
{
struct usb_device *udev = interface_to_usbdev(intf);
struct mt76x2_dev *dev = usb_get_intfdata(intf);
struct ieee80211_hw *hw = mt76_hw(dev);
set_bit(MT76_REMOVED, &dev->mt76.state);
ieee80211_unregister_hw(hw);
mt76x2u_cleanup(dev);
ieee80211_free_hw(hw);
usb_set_intfdata(intf, NULL);
usb_put_dev(udev);
}
static int __maybe_unused mt76x2u_suspend(struct usb_interface *intf,
pm_message_t state)
{
struct mt76x2_dev *dev = usb_get_intfdata(intf);
struct mt76_usb *usb = &dev->mt76.usb;
mt76u_stop_queues(&dev->mt76);
mt76x2u_stop_hw(dev);
usb_kill_urb(usb->mcu.res.urb);
return 0;
}
static int __maybe_unused mt76x2u_resume(struct usb_interface *intf)
{
struct mt76x2_dev *dev = usb_get_intfdata(intf);
struct mt76_usb *usb = &dev->mt76.usb;
int err;
reinit_completion(&usb->mcu.cmpl);
err = mt76u_submit_buf(&dev->mt76, USB_DIR_IN,
MT_EP_IN_CMD_RESP,
&usb->mcu.res, GFP_KERNEL,
mt76u_mcu_complete_urb,
&usb->mcu.cmpl);
if (err < 0)
return err;
err = mt76u_submit_rx_buffers(&dev->mt76);
if (err < 0)
return err;
tasklet_enable(&usb->rx_tasklet);
tasklet_enable(&usb->tx_tasklet);
return mt76x2u_init_hardware(dev);
}
MODULE_DEVICE_TABLE(usb, mt76x2u_device_table);
MODULE_FIRMWARE(MT7662U_FIRMWARE);
MODULE_FIRMWARE(MT7662U_ROM_PATCH);
static struct usb_driver mt76x2u_driver = {
.name = KBUILD_MODNAME,
.id_table = mt76x2u_device_table,
.probe = mt76x2u_probe,
.disconnect = mt76x2u_disconnect,
#ifdef CONFIG_PM
.suspend = mt76x2u_suspend,
.resume = mt76x2u_resume,
.reset_resume = mt76x2u_resume,
#endif /* CONFIG_PM */
.soft_unbind = 1,
.disable_hub_initiated_lpm = 1,
};
module_usb_driver(mt76x2u_driver);
MODULE_AUTHOR("Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>");
MODULE_LICENSE("Dual BSD/GPL");

83
drivers/net/wireless/mediatek/mt76/mt76x2u.h Normal file
View File

@ -0,0 +1,83 @@
/*
* Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@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 __MT76x2U_H
#define __MT76x2U_H
#include <linux/device.h>
#include "mt76x2.h"
#include "mt76x2_dma.h"
#include "mt76x2_mcu.h"
#define MT7612U_EEPROM_SIZE 512
#define MT_USB_AGGR_SIZE_LIMIT 21 /* 1024B unit */
#define MT_USB_AGGR_TIMEOUT 0x80 /* 33ns unit */
extern const struct ieee80211_ops mt76x2u_ops;
struct mt76x2_dev *mt76x2u_alloc_device(struct device *pdev);
int mt76x2u_register_device(struct mt76x2_dev *dev);
int mt76x2u_init_hardware(struct mt76x2_dev *dev);
void mt76x2u_cleanup(struct mt76x2_dev *dev);
void mt76x2u_stop_hw(struct mt76x2_dev *dev);
void mt76x2u_mac_setaddr(struct mt76x2_dev *dev, u8 *addr);
int mt76x2u_mac_reset(struct mt76x2_dev *dev);
void mt76x2u_mac_resume(struct mt76x2_dev *dev);
int mt76x2u_mac_start(struct mt76x2_dev *dev);
int mt76x2u_mac_stop(struct mt76x2_dev *dev);
int mt76x2u_phy_set_channel(struct mt76x2_dev *dev,
struct cfg80211_chan_def *chandef);
void mt76x2u_phy_calibrate(struct work_struct *work);
void mt76x2u_phy_channel_calibrate(struct mt76x2_dev *dev);
void mt76x2u_phy_set_txdac(struct mt76x2_dev *dev);
void mt76x2u_phy_set_rxpath(struct mt76x2_dev *dev);
void mt76x2u_mcu_complete_urb(struct urb *urb);
int mt76x2u_mcu_set_channel(struct mt76x2_dev *dev, u8 channel, u8 bw,
u8 bw_index, bool scan);
int mt76x2u_mcu_calibrate(struct mt76x2_dev *dev, enum mcu_calibration type,
u32 val);
int mt76x2u_mcu_tssi_comp(struct mt76x2_dev *dev,
struct mt76x2_tssi_comp *tssi_data);
int mt76x2u_mcu_init_gain(struct mt76x2_dev *dev, u8 channel, u32 gain,
bool force);
int mt76x2u_mcu_set_dynamic_vga(struct mt76x2_dev *dev, u8 channel, bool ap,
bool ext, int rssi, u32 false_cca);
int mt76x2u_mcu_set_radio_state(struct mt76x2_dev *dev, bool val);
int mt76x2u_mcu_load_cr(struct mt76x2_dev *dev, u8 type,
u8 temp_level, u8 channel);
int mt76x2u_mcu_init(struct mt76x2_dev *dev);
int mt76x2u_mcu_fw_init(struct mt76x2_dev *dev);
void mt76x2u_mcu_deinit(struct mt76x2_dev *dev);
int mt76x2u_alloc_queues(struct mt76x2_dev *dev);
void mt76x2u_queues_deinit(struct mt76x2_dev *dev);
void mt76x2u_stop_queues(struct mt76x2_dev *dev);
bool mt76x2u_tx_status_data(struct mt76_dev *mdev, u8 *update);
int mt76x2u_tx_prepare_skb(struct mt76_dev *mdev, void *data,
struct sk_buff *skb, struct mt76_queue *q,
struct mt76_wcid *wcid, struct ieee80211_sta *sta,
u32 *tx_info);
void mt76x2u_tx_complete_skb(struct mt76_dev *mdev, struct mt76_queue *q,
struct mt76_queue_entry *e, bool flush);
int mt76x2u_skb_dma_info(struct sk_buff *skb, enum dma_msg_port port,
u32 flags);
#endif /* __MT76x2U_H */

108
drivers/net/wireless/mediatek/mt76/mt76x2u_core.c Normal file
View File

@ -0,0 +1,108 @@
/*
* Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@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.
*/
#include "mt76x2u.h"
#include "dma.h"
static void mt76x2u_remove_dma_hdr(struct sk_buff *skb)
{
int hdr_len;
skb_pull(skb, sizeof(struct mt76x2_txwi) + MT_DMA_HDR_LEN);
hdr_len = ieee80211_get_hdrlen_from_skb(skb);
if (hdr_len % 4) {
memmove(skb->data + 2, skb->data, hdr_len);
skb_pull(skb, 2);
}
}
static int
mt76x2u_check_skb_rooms(struct sk_buff *skb)
{
int hdr_len = ieee80211_get_hdrlen_from_skb(skb);
u32 need_head;
need_head = sizeof(struct mt76x2_txwi) + MT_DMA_HDR_LEN;
if (hdr_len % 4)
need_head += 2;
return skb_cow(skb, need_head);
}
static int
mt76x2u_set_txinfo(struct sk_buff *skb,
struct mt76_wcid *wcid, u8 ep)
{
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
enum mt76x2_qsel qsel;
u32 flags;
if ((info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE) ||
ep == MT_EP_OUT_HCCA)
qsel = MT_QSEL_MGMT;
else
qsel = MT_QSEL_EDCA;
flags = FIELD_PREP(MT_TXD_INFO_QSEL, qsel) |
MT_TXD_INFO_80211;
if (!wcid || wcid->hw_key_idx == 0xff || wcid->sw_iv)
flags |= MT_TXD_INFO_WIV;
return mt76u_skb_dma_info(skb, WLAN_PORT, flags);
}
bool mt76x2u_tx_status_data(struct mt76_dev *mdev, u8 *update)
{
struct mt76x2_dev *dev = container_of(mdev, struct mt76x2_dev, mt76);
struct mt76x2_tx_status stat;
if (!mt76x2_mac_load_tx_status(dev, &stat))
return false;
mt76x2_send_tx_status(dev, &stat, update);
return true;
}
int mt76x2u_tx_prepare_skb(struct mt76_dev *mdev, void *data,
struct sk_buff *skb, struct mt76_queue *q,
struct mt76_wcid *wcid, struct ieee80211_sta *sta,
u32 *tx_info)
{
struct mt76x2_dev *dev = container_of(mdev, struct mt76x2_dev, mt76);
struct mt76x2_txwi *txwi;
int err, len = skb->len;
err = mt76x2u_check_skb_rooms(skb);
if (err < 0)
return -ENOMEM;
mt76x2_insert_hdr_pad(skb);
txwi = skb_push(skb, sizeof(struct mt76x2_txwi));
mt76x2_mac_write_txwi(dev, txwi, skb, wcid, sta, len);
return mt76x2u_set_txinfo(skb, wcid, q2ep(q->hw_idx));
}
void mt76x2u_tx_complete_skb(struct mt76_dev *mdev, struct mt76_queue *q,
struct mt76_queue_entry *e, bool flush)
{
struct mt76x2_dev *dev = container_of(mdev, struct mt76x2_dev, mt76);
mt76x2u_remove_dma_hdr(e->skb);
mt76x2_tx_complete(dev, e->skb);
}

318
drivers/net/wireless/mediatek/mt76/mt76x2u_init.c Normal file
View File

@ -0,0 +1,318 @@
/*
* Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@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.
*/
#include <linux/delay.h>
#include "mt76x2u.h"
#include "mt76x2_eeprom.h"
static void mt76x2u_init_dma(struct mt76x2_dev *dev)
{
u32 val = mt76_rr(dev, MT_VEND_ADDR(CFG, MT_USB_U3DMA_CFG));
val |= MT_USB_DMA_CFG_RX_DROP_OR_PAD |
MT_USB_DMA_CFG_RX_BULK_EN |
MT_USB_DMA_CFG_TX_BULK_EN;
/* disable AGGR_BULK_RX in order to receive one
* frame in each rx urb and avoid copies
*/
val &= ~MT_USB_DMA_CFG_RX_BULK_AGG_EN;
mt76_wr(dev, MT_VEND_ADDR(CFG, MT_USB_U3DMA_CFG), val);
}
static void mt76x2u_power_on_rf_patch(struct mt76x2_dev *dev)
{
mt76_set(dev, MT_VEND_ADDR(CFG, 0x130), BIT(0) | BIT(16));
udelay(1);
mt76_clear(dev, MT_VEND_ADDR(CFG, 0x1c), 0xff);
mt76_set(dev, MT_VEND_ADDR(CFG, 0x1c), 0x30);
mt76_wr(dev, MT_VEND_ADDR(CFG, 0x14), 0x484f);
udelay(1);
mt76_set(dev, MT_VEND_ADDR(CFG, 0x130), BIT(17));
usleep_range(150, 200);
mt76_clear(dev, MT_VEND_ADDR(CFG, 0x130), BIT(16));
usleep_range(50, 100);
mt76_set(dev, MT_VEND_ADDR(CFG, 0x14c), BIT(19) | BIT(20));
}
static void mt76x2u_power_on_rf(struct mt76x2_dev *dev, int unit)
{
int shift = unit ? 8 : 0;
u32 val = (BIT(1) | BIT(3) | BIT(4) | BIT(5)) << shift;
/* Enable RF BG */
mt76_set(dev, MT_VEND_ADDR(CFG, 0x130), BIT(0) << shift);
usleep_range(10, 20);
/* Enable RFDIG LDO/AFE/ABB/ADDA */
mt76_set(dev, MT_VEND_ADDR(CFG, 0x130), val);
usleep_range(10, 20);
/* Switch RFDIG power to internal LDO */
mt76_clear(dev, MT_VEND_ADDR(CFG, 0x130), BIT(2) << shift);
usleep_range(10, 20);
mt76x2u_power_on_rf_patch(dev);
mt76_set(dev, 0x530, 0xf);
}
static void mt76x2u_power_on(struct mt76x2_dev *dev)
{
u32 val;
/* Turn on WL MTCMOS */
mt76_set(dev, MT_VEND_ADDR(CFG, 0x148),
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_VEND_ADDR(CFG, 0x148), val, val, 1000);
mt76_clear(dev, MT_VEND_ADDR(CFG, 0x148), 0x7f << 16);
usleep_range(10, 20);
mt76_clear(dev, MT_VEND_ADDR(CFG, 0x148), 0xf << 24);
usleep_range(10, 20);
mt76_set(dev, MT_VEND_ADDR(CFG, 0x148), 0xf << 24);
mt76_clear(dev, MT_VEND_ADDR(CFG, 0x148), 0xfff);
/* Turn on AD/DA power down */
mt76_clear(dev, MT_VEND_ADDR(CFG, 0x1204), BIT(3));
/* WLAN function enable */
mt76_set(dev, MT_VEND_ADDR(CFG, 0x80), BIT(0));
/* Release BBP software reset */
mt76_clear(dev, MT_VEND_ADDR(CFG, 0x64), BIT(18));
mt76x2u_power_on_rf(dev, 0);
mt76x2u_power_on_rf(dev, 1);
}
static int mt76x2u_init_eeprom(struct mt76x2_dev *dev)
{
u32 val, i;
dev->mt76.eeprom.data = devm_kzalloc(dev->mt76.dev,
MT7612U_EEPROM_SIZE,
GFP_KERNEL);
dev->mt76.eeprom.size = MT7612U_EEPROM_SIZE;
if (!dev->mt76.eeprom.data)
return -ENOMEM;
for (i = 0; i + 4 <= MT7612U_EEPROM_SIZE; i += 4) {
val = mt76_rr(dev, MT_VEND_ADDR(EEPROM, i));
put_unaligned_le32(val, dev->mt76.eeprom.data + i);
}
mt76x2_eeprom_parse_hw_cap(dev);
return 0;
}
struct mt76x2_dev *mt76x2u_alloc_device(struct device *pdev)
{
static const struct mt76_driver_ops drv_ops = {
.tx_prepare_skb = mt76x2u_tx_prepare_skb,
.tx_complete_skb = mt76x2u_tx_complete_skb,
.tx_status_data = mt76x2u_tx_status_data,
.rx_skb = mt76x2_queue_rx_skb,
};
struct mt76x2_dev *dev;
struct mt76_dev *mdev;
mdev = mt76_alloc_device(sizeof(*dev), &mt76x2u_ops);
if (!mdev)
return NULL;
dev = container_of(mdev, struct mt76x2_dev, mt76);
mdev->dev = pdev;
mdev->drv = &drv_ops;
mutex_init(&dev->mutex);
return dev;
}
static void mt76x2u_init_beacon_offsets(struct mt76x2_dev *dev)
{
mt76_wr(dev, MT_BCN_OFFSET(0), 0x18100800);
mt76_wr(dev, MT_BCN_OFFSET(1), 0x38302820);
mt76_wr(dev, MT_BCN_OFFSET(2), 0x58504840);
mt76_wr(dev, MT_BCN_OFFSET(3), 0x78706860);
}
int mt76x2u_init_hardware(struct mt76x2_dev *dev)
{
static const u16 beacon_offsets[] = {
/* 512 byte per beacon */
0xc000, 0xc200, 0xc400, 0xc600,
0xc800, 0xca00, 0xcc00, 0xce00,
0xd000, 0xd200, 0xd400, 0xd600,
0xd800, 0xda00, 0xdc00, 0xde00
};
const struct mt76_wcid_addr addr = {
.macaddr = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff},
.ba_mask = 0,
};
int i, err;
dev->beacon_offsets = beacon_offsets;
mt76x2_reset_wlan(dev, true);
mt76x2u_power_on(dev);
if (!mt76x2_wait_for_mac(dev))
return -ETIMEDOUT;
err = mt76x2u_mcu_fw_init(dev);
if (err < 0)
return err;
if (!mt76_poll_msec(dev, MT_WPDMA_GLO_CFG,
MT_WPDMA_GLO_CFG_TX_DMA_BUSY |
MT_WPDMA_GLO_CFG_RX_DMA_BUSY, 0, 100))
return -EIO;
/* wait for asic ready after fw load. */
if (!mt76x2_wait_for_mac(dev))
return -ETIMEDOUT;
mt76_wr(dev, MT_HEADER_TRANS_CTRL_REG, 0);
mt76_wr(dev, MT_TSO_CTRL, 0);
mt76x2u_init_dma(dev);
err = mt76x2u_mcu_init(dev);
if (err < 0)
return err;
err = mt76x2u_mac_reset(dev);
if (err < 0)
return err;
mt76x2u_mac_setaddr(dev, dev->mt76.eeprom.data + MT_EE_MAC_ADDR);
dev->rxfilter = mt76_rr(dev, MT_RX_FILTR_CFG);
mt76x2u_init_beacon_offsets(dev);
if (!mt76x2_wait_for_bbp(dev))
return -ETIMEDOUT;
/* reset wcid table */
for (i = 0; i < 254; i++)
mt76_wr_copy(dev, MT_WCID_ADDR(i), &addr,
sizeof(struct mt76_wcid_addr));
/* reset shared key table and pairwise key table */
for (i = 0; i < 4; i++)
mt76_wr(dev, MT_SKEY_MODE_BASE_0 + 4 * i, 0);
for (i = 0; i < 256; i++)
mt76_wr(dev, MT_WCID_ATTR(i), 1);
mt76_clear(dev, MT_BEACON_TIME_CFG,
MT_BEACON_TIME_CFG_TIMER_EN |
MT_BEACON_TIME_CFG_SYNC_MODE |
MT_BEACON_TIME_CFG_TBTT_EN |
MT_BEACON_TIME_CFG_BEACON_TX);
mt76_rmw(dev, MT_US_CYC_CFG, MT_US_CYC_CNT, 0x1e);
mt76_wr(dev, MT_TXOP_CTRL_CFG, 0x583f);
err = mt76x2u_mcu_load_cr(dev, MT_RF_BBP_CR, 0, 0);
if (err < 0)
return err;
mt76x2u_phy_set_rxpath(dev);
mt76x2u_phy_set_txdac(dev);
return mt76x2u_mac_stop(dev);
}
int mt76x2u_register_device(struct mt76x2_dev *dev)
{
struct ieee80211_hw *hw = mt76_hw(dev);
struct wiphy *wiphy = hw->wiphy;
int err;
INIT_DELAYED_WORK(&dev->cal_work, mt76x2u_phy_calibrate);
mt76x2_init_device(dev);
err = mt76x2u_init_eeprom(dev);
if (err < 0)
return err;
err = mt76u_mcu_init_rx(&dev->mt76);
if (err < 0)
return err;
err = mt76u_alloc_queues(&dev->mt76);
if (err < 0)
goto fail;
err = mt76x2u_init_hardware(dev);
if (err < 0)
goto fail;
wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
err = mt76_register_device(&dev->mt76, true, mt76x2_rates,
ARRAY_SIZE(mt76x2_rates));
if (err)
goto fail;
/* check hw sg support in order to enable AMSDU */
if (mt76u_check_sg(&dev->mt76))
hw->max_tx_fragments = MT_SG_MAX_SIZE;
else
hw->max_tx_fragments = 1;
set_bit(MT76_STATE_INITIALIZED, &dev->mt76.state);
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:
mt76x2u_cleanup(dev);
return err;
}
void mt76x2u_stop_hw(struct mt76x2_dev *dev)
{
mt76u_stop_stat_wk(&dev->mt76);
cancel_delayed_work_sync(&dev->cal_work);
mt76x2u_mac_stop(dev);
}
void mt76x2u_cleanup(struct mt76x2_dev *dev)
{
mt76x2u_mcu_set_radio_state(dev, false);
mt76x2u_stop_hw(dev);
mt76u_queues_deinit(&dev->mt76);
mt76x2u_mcu_deinit(dev);
}

240
drivers/net/wireless/mediatek/mt76/mt76x2u_mac.c Normal file
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@ -0,0 +1,240 @@
/*
* Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@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.
*/
#include "mt76x2u.h"
#include "mt76x2_eeprom.h"
static void mt76x2u_mac_reset_counters(struct mt76x2_dev *dev)
{
mt76_rr(dev, MT_RX_STAT_0);
mt76_rr(dev, MT_RX_STAT_1);
mt76_rr(dev, MT_RX_STAT_2);
mt76_rr(dev, MT_TX_STA_0);
mt76_rr(dev, MT_TX_STA_1);
mt76_rr(dev, MT_TX_STA_2);
}
static void mt76x2u_mac_fixup_xtal(struct mt76x2_dev *dev)
{
s8 offset = 0;
u16 eep_val;
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_VEND_ADDR(CFG, MT_XO_CTRL5),
MT_XO_CTRL5_C2_VAL, eep_val + offset);
mt76_set(dev, MT_VEND_ADDR(CFG, MT_XO_CTRL6), MT_XO_CTRL6_C2_CTRL);
mt76_wr(dev, 0x504, 0x06000000);
mt76_wr(dev, 0x50c, 0x08800000);
mdelay(5);
mt76_wr(dev, 0x504, 0x0);
/* decrease SIFS from 16us to 13us */
mt76_rmw_field(dev, MT_XIFS_TIME_CFG,
MT_XIFS_TIME_CFG_OFDM_SIFS, 0xd);
mt76_rmw_field(dev, MT_BKOFF_SLOT_CFG, MT_BKOFF_SLOT_CFG_CC_DELAY, 1);
/* init fce */
mt76_clear(dev, MT_FCE_L2_STUFF, MT_FCE_L2_STUFF_WR_MPDU_LEN_EN);
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;
}
}
int mt76x2u_mac_reset(struct mt76x2_dev *dev)
{
mt76_wr(dev, MT_WPDMA_GLO_CFG, BIT(4) | BIT(5));
/* init pbf regs */
mt76_wr(dev, MT_PBF_TX_MAX_PCNT, 0xefef3f1f);
mt76_wr(dev, MT_PBF_RX_MAX_PCNT, 0xfebf);
mt76_write_mac_initvals(dev);
mt76_wr(dev, MT_TX_LINK_CFG, 0x1020);
mt76_wr(dev, MT_AUTO_RSP_CFG, 0x13);
mt76_wr(dev, MT_MAX_LEN_CFG, 0x2f00);
mt76_wr(dev, MT_TX_RTS_CFG, 0x92b20);
mt76_wr(dev, MT_WMM_AIFSN, 0x2273);
mt76_wr(dev, MT_WMM_CWMIN, 0x2344);
mt76_wr(dev, MT_WMM_CWMAX, 0x34aa);
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, 0xf000);
mt76_clear(dev, MT_TX_ALC_CFG_4, BIT(31));
mt76x2u_mac_fixup_xtal(dev);
return 0;
}
int mt76x2u_mac_start(struct mt76x2_dev *dev)
{
mt76x2u_mac_reset_counters(dev);
mt76_wr(dev, MT_MAC_SYS_CTRL, MT_MAC_SYS_CTRL_ENABLE_TX);
wait_for_wpdma(dev);
usleep_range(50, 100);
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);
return 0;
}
int mt76x2u_mac_stop(struct mt76x2_dev *dev)
{
int i, count = 0, val;
bool stopped = false;
u32 rts_cfg;
if (test_bit(MT76_REMOVED, &dev->mt76.state))
return -EIO;
rts_cfg = mt76_rr(dev, MT_TX_RTS_CFG);
mt76_wr(dev, MT_TX_RTS_CFG, rts_cfg & ~MT_TX_RTS_CFG_RETRY_LIMIT);
mt76_clear(dev, MT_TXOP_CTRL_CFG, BIT(20));
mt76_clear(dev, MT_TXOP_HLDR_ET, BIT(1));
/* wait tx dma to stop */
for (i = 0; i < 2000; i++) {
val = mt76_rr(dev, MT_VEND_ADDR(CFG, MT_USB_U3DMA_CFG));
if (!(val & MT_USB_DMA_CFG_TX_BUSY) && i > 10)
break;
usleep_range(50, 100);
}
/* page count on TxQ */
for (i = 0; i < 200; i++) {
if (!(mt76_rr(dev, 0x0438) & 0xffffffff) &&
!(mt76_rr(dev, 0x0a30) & 0x000000ff) &&
!(mt76_rr(dev, 0x0a34) & 0xff00ff00))
break;
usleep_range(10, 20);
}
/* disable tx-rx */
mt76_clear(dev, MT_MAC_SYS_CTRL,
MT_MAC_SYS_CTRL_ENABLE_RX |
MT_MAC_SYS_CTRL_ENABLE_TX);
/* Wait for MAC to become idle */
for (i = 0; i < 1000; i++) {
if (!(mt76_rr(dev, MT_MAC_STATUS) & MT_MAC_STATUS_TX) &&
!mt76_rr(dev, MT_BBP(IBI, 12))) {
stopped = true;
break;
}
usleep_range(10, 20);
}
if (!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));
}
/* page count on RxQ */
for (i = 0; i < 200; i++) {
if (!(mt76_rr(dev, 0x0430) & 0x00ff0000) &&
!(mt76_rr(dev, 0x0a30) & 0xffffffff) &&
!(mt76_rr(dev, 0x0a34) & 0xffffffff) &&
++count > 10)
break;
msleep(50);
}
if (!mt76_poll(dev, MT_MAC_STATUS, MT_MAC_STATUS_RX, 0, 2000))
dev_warn(dev->mt76.dev, "MAC RX failed to stop\n");
/* wait rx dma to stop */
for (i = 0; i < 2000; i++) {
val = mt76_rr(dev, MT_VEND_ADDR(CFG, MT_USB_U3DMA_CFG));
if (!(val & MT_USB_DMA_CFG_RX_BUSY) && i > 10)
break;
usleep_range(50, 100);
}
mt76_wr(dev, MT_TX_RTS_CFG, rts_cfg);
return 0;
}
void mt76x2u_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);
mt76_set(dev, MT_TXOP_CTRL_CFG, BIT(20));
mt76_set(dev, MT_TXOP_HLDR_ET, BIT(1));
}
void mt76x2u_mac_setaddr(struct mt76x2_dev *dev, u8 *addr)
{
ether_addr_copy(dev->mt76.macaddr, addr);
if (!is_valid_ether_addr(dev->mt76.macaddr)) {
eth_random_addr(dev->mt76.macaddr);
dev_info(dev->mt76.dev,
"Invalid MAC address, using random address %pM\n",
dev->mt76.macaddr);
}
mt76_wr(dev, MT_MAC_ADDR_DW0, get_unaligned_le32(dev->mt76.macaddr));
mt76_wr(dev, MT_MAC_ADDR_DW1,
get_unaligned_le16(dev->mt76.macaddr + 4) |
FIELD_PREP(MT_MAC_ADDR_DW1_U2ME_MASK, 0xff));
}

185
drivers/net/wireless/mediatek/mt76/mt76x2u_main.c Normal file
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/*
* Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@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.
*/
#include "mt76x2u.h"
static int mt76x2u_start(struct ieee80211_hw *hw)
{
struct mt76x2_dev *dev = hw->priv;
int ret;
mutex_lock(&dev->mutex);
ret = mt76x2u_mac_start(dev);
if (ret)
goto out;
set_bit(MT76_STATE_RUNNING, &dev->mt76.state);
out:
mutex_unlock(&dev->mutex);
return ret;
}
static void mt76x2u_stop(struct ieee80211_hw *hw)
{
struct mt76x2_dev *dev = hw->priv;
mutex_lock(&dev->mutex);
clear_bit(MT76_STATE_RUNNING, &dev->mt76.state);
mt76x2u_stop_hw(dev);
mutex_unlock(&dev->mutex);
}
static int mt76x2u_add_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
struct mt76x2_dev *dev = hw->priv;
struct mt76x2_vif *mvif = (struct mt76x2_vif *)vif->drv_priv;
unsigned int idx = 0;
if (!ether_addr_equal(dev->mt76.macaddr, vif->addr))
mt76x2u_mac_setaddr(dev, vif->addr);
mvif->idx = idx;
mvif->group_wcid.idx = MT_VIF_WCID(idx);
mvif->group_wcid.hw_key_idx = -1;
mt76x2_txq_init(dev, vif->txq);
return 0;
}
static int
mt76x2u_set_channel(struct mt76x2_dev *dev,
struct cfg80211_chan_def *chandef)
{
int err;
cancel_delayed_work_sync(&dev->cal_work);
set_bit(MT76_RESET, &dev->mt76.state);
mt76_set_channel(&dev->mt76);
mt76_clear(dev, MT_TXOP_CTRL_CFG, BIT(20));
mt76_clear(dev, MT_TXOP_HLDR_ET, BIT(1));
mt76x2_mac_stop(dev, false);
err = mt76x2u_phy_set_channel(dev, chandef);
mt76x2u_mac_resume(dev);
clear_bit(MT76_RESET, &dev->mt76.state);
mt76_txq_schedule_all(&dev->mt76);
return err;
}
static void
mt76x2u_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct ieee80211_bss_conf *info, u32 changed)
{
struct mt76x2_dev *dev = hw->priv;
mutex_lock(&dev->mutex);
if (changed & BSS_CHANGED_ASSOC) {
mt76x2u_phy_channel_calibrate(dev);
mt76x2_apply_gain_adj(dev);
}
if (changed & BSS_CHANGED_BSSID) {
mt76_wr(dev, MT_MAC_BSSID_DW0,
get_unaligned_le32(info->bssid));
mt76_wr(dev, MT_MAC_BSSID_DW1,
get_unaligned_le16(info->bssid + 4));
}
mutex_unlock(&dev->mutex);
}
static int
mt76x2u_config(struct ieee80211_hw *hw, u32 changed)
{
struct mt76x2_dev *dev = hw->priv;
int err = 0;
mutex_lock(&dev->mutex);
if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
if (!(hw->conf.flags & IEEE80211_CONF_MONITOR))
dev->rxfilter |= MT_RX_FILTR_CFG_PROMISC;
else
dev->rxfilter &= ~MT_RX_FILTR_CFG_PROMISC;
mt76_wr(dev, MT_RX_FILTR_CFG, dev->rxfilter);
}
if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
ieee80211_stop_queues(hw);
err = mt76x2u_set_channel(dev, &hw->conf.chandef);
ieee80211_wake_queues(hw);
}
if (changed & IEEE80211_CONF_CHANGE_POWER) {
dev->txpower_conf = hw->conf.power_level * 2;
/* convert to per-chain power for 2x2 devices */
dev->txpower_conf -= 6;
if (test_bit(MT76_STATE_RUNNING, &dev->mt76.state))
mt76x2_phy_set_txpower(dev);
}
mutex_unlock(&dev->mutex);
return err;
}
static void
mt76x2u_sw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
const u8 *mac)
{
struct mt76x2_dev *dev = hw->priv;
set_bit(MT76_SCANNING, &dev->mt76.state);
}
static void
mt76x2u_sw_scan_complete(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
{
struct mt76x2_dev *dev = hw->priv;
clear_bit(MT76_SCANNING, &dev->mt76.state);
}
const struct ieee80211_ops mt76x2u_ops = {
.tx = mt76x2_tx,
.start = mt76x2u_start,
.stop = mt76x2u_stop,
.add_interface = mt76x2u_add_interface,
.remove_interface = mt76x2_remove_interface,
.sta_add = mt76x2_sta_add,
.sta_remove = mt76x2_sta_remove,
.set_key = mt76x2_set_key,
.ampdu_action = mt76x2_ampdu_action,
.config = mt76x2u_config,
.wake_tx_queue = mt76_wake_tx_queue,
.bss_info_changed = mt76x2u_bss_info_changed,
.configure_filter = mt76x2_configure_filter,
.conf_tx = mt76x2_conf_tx,
.sw_scan_start = mt76x2u_sw_scan,
.sw_scan_complete = mt76x2u_sw_scan_complete,
.sta_rate_tbl_update = mt76x2_sta_rate_tbl_update,
};

463
drivers/net/wireless/mediatek/mt76/mt76x2u_mcu.c Normal file
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@ -0,0 +1,463 @@
/*
* Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@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.
*/
#include <linux/firmware.h>
#include "mt76x2u.h"
#include "mt76x2_eeprom.h"
#define MT_CMD_HDR_LEN 4
#define MT_INBAND_PACKET_MAX_LEN 192
#define MT_MCU_MEMMAP_WLAN 0x410000
#define MCU_FW_URB_MAX_PAYLOAD 0x3900
#define MCU_ROM_PATCH_MAX_PAYLOAD 2048
#define MT76U_MCU_ILM_OFFSET 0x80000
#define MT76U_MCU_DLM_OFFSET 0x110000
#define MT76U_MCU_ROM_PATCH_OFFSET 0x90000
static int
mt76x2u_mcu_function_select(struct mt76x2_dev *dev, enum mcu_function func,
u32 val)
{
struct {
__le32 id;
__le32 value;
} __packed __aligned(4) msg = {
.id = cpu_to_le32(func),
.value = cpu_to_le32(val),
};
struct sk_buff *skb;
skb = mt76u_mcu_msg_alloc(&msg, sizeof(msg));
if (!skb)
return -ENOMEM;
return mt76u_mcu_send_msg(&dev->mt76, skb, CMD_FUN_SET_OP,
func != Q_SELECT);
}
int mt76x2u_mcu_set_radio_state(struct mt76x2_dev *dev, bool val)
{
struct {
__le32 mode;
__le32 level;
} __packed __aligned(4) msg = {
.mode = cpu_to_le32(val ? RADIO_ON : RADIO_OFF),
.level = cpu_to_le32(0),
};
struct sk_buff *skb;
skb = mt76u_mcu_msg_alloc(&msg, sizeof(msg));
if (!skb)
return -ENOMEM;
return mt76u_mcu_send_msg(&dev->mt76, skb, CMD_POWER_SAVING_OP,
false);
}
int mt76x2u_mcu_load_cr(struct mt76x2_dev *dev, u8 type, u8 temp_level,
u8 channel)
{
struct {
u8 cr_mode;
u8 temp;
u8 ch;
u8 _pad0;
__le32 cfg;
} __packed __aligned(4) msg = {
.cr_mode = type,
.temp = temp_level,
.ch = channel,
};
struct sk_buff *skb;
u32 val;
val = BIT(31);
val |= (mt76x2_eeprom_get(dev, MT_EE_NIC_CONF_0) >> 8) & 0x00ff;
val |= (mt76x2_eeprom_get(dev, MT_EE_NIC_CONF_1) << 8) & 0xff00;
msg.cfg = cpu_to_le32(val);
/* first set the channel without the extension channel info */
skb = mt76u_mcu_msg_alloc(&msg, sizeof(msg));
if (!skb)
return -ENOMEM;
return mt76u_mcu_send_msg(&dev->mt76, skb, CMD_LOAD_CR, true);
}
int mt76x2u_mcu_set_channel(struct mt76x2_dev *dev, u8 channel, u8 bw,
u8 bw_index, bool scan)
{
struct {
u8 idx;
u8 scan;
u8 bw;
u8 _pad0;
__le16 chainmask;
u8 ext_chan;
u8 _pad1;
} __packed __aligned(4) msg = {
.idx = channel,
.scan = scan,
.bw = bw,
.chainmask = cpu_to_le16(dev->chainmask),
};
struct sk_buff *skb;
/* first set the channel without the extension channel info */
skb = mt76u_mcu_msg_alloc(&msg, sizeof(msg));
if (!skb)
return -ENOMEM;
mt76u_mcu_send_msg(&dev->mt76, skb, CMD_SWITCH_CHANNEL_OP, true);
usleep_range(5000, 10000);
msg.ext_chan = 0xe0 + bw_index;
skb = mt76u_mcu_msg_alloc(&msg, sizeof(msg));
if (!skb)
return -ENOMEM;
return mt76u_mcu_send_msg(&dev->mt76, skb, CMD_SWITCH_CHANNEL_OP, true);
}
int mt76x2u_mcu_calibrate(struct mt76x2_dev *dev, enum mcu_calibration type,
u32 val)
{
struct {
__le32 id;
__le32 value;
} __packed __aligned(4) msg = {
.id = cpu_to_le32(type),
.value = cpu_to_le32(val),
};
struct sk_buff *skb;
skb = mt76u_mcu_msg_alloc(&msg, sizeof(msg));
if (!skb)
return -ENOMEM;
return mt76u_mcu_send_msg(&dev->mt76, skb, CMD_CALIBRATION_OP, true);
}
int mt76x2u_mcu_init_gain(struct mt76x2_dev *dev, u8 channel, u32 gain,
bool force)
{
struct {
__le32 channel;
__le32 gain_val;
} __packed __aligned(4) msg = {
.channel = cpu_to_le32(channel),
.gain_val = cpu_to_le32(gain),
};
struct sk_buff *skb;
if (force)
msg.channel |= cpu_to_le32(BIT(31));
skb = mt76u_mcu_msg_alloc(&msg, sizeof(msg));
if (!skb)
return -ENOMEM;
return mt76u_mcu_send_msg(&dev->mt76, skb, CMD_INIT_GAIN_OP, true);
}
int mt76x2u_mcu_set_dynamic_vga(struct mt76x2_dev *dev, u8 channel, bool ap,
bool ext, int rssi, u32 false_cca)
{
struct {
__le32 channel;
__le32 rssi_val;
__le32 false_cca_val;
} __packed __aligned(4) msg = {
.rssi_val = cpu_to_le32(rssi),
.false_cca_val = cpu_to_le32(false_cca),
};
struct sk_buff *skb;
u32 val = channel;
if (ap)
val |= BIT(31);
if (ext)
val |= BIT(30);
msg.channel = cpu_to_le32(val);
skb = mt76u_mcu_msg_alloc(&msg, sizeof(msg));
if (!skb)
return -ENOMEM;
return mt76u_mcu_send_msg(&dev->mt76, skb, CMD_DYNC_VGA_OP, true);
}
int mt76x2u_mcu_tssi_comp(struct mt76x2_dev *dev,
struct mt76x2_tssi_comp *tssi_data)
{
struct {
__le32 id;
struct mt76x2_tssi_comp data;
} __packed __aligned(4) msg = {
.id = cpu_to_le32(MCU_CAL_TSSI_COMP),
.data = *tssi_data,
};
struct sk_buff *skb;
skb = mt76u_mcu_msg_alloc(&msg, sizeof(msg));
if (!skb)
return -ENOMEM;
return mt76u_mcu_send_msg(&dev->mt76, skb, CMD_CALIBRATION_OP, true);
}
static void mt76x2u_mcu_load_ivb(struct mt76x2_dev *dev)
{
mt76u_vendor_request(&dev->mt76, MT_VEND_DEV_MODE,
USB_DIR_OUT | USB_TYPE_VENDOR,
0x12, 0, NULL, 0);
}
static void mt76x2u_mcu_enable_patch(struct mt76x2_dev *dev)
{
struct mt76_usb *usb = &dev->mt76.usb;
const u8 data[] = {
0x6f, 0xfc, 0x08, 0x01,
0x20, 0x04, 0x00, 0x00,
0x00, 0x09, 0x00,
};
memcpy(usb->data, data, sizeof(data));
mt76u_vendor_request(&dev->mt76, MT_VEND_DEV_MODE,
USB_DIR_OUT | USB_TYPE_CLASS,
0x12, 0, usb->data, sizeof(data));
}
static void mt76x2u_mcu_reset_wmt(struct mt76x2_dev *dev)
{
struct mt76_usb *usb = &dev->mt76.usb;
u8 data[] = {
0x6f, 0xfc, 0x05, 0x01,
0x07, 0x01, 0x00, 0x04
};
memcpy(usb->data, data, sizeof(data));
mt76u_vendor_request(&dev->mt76, MT_VEND_DEV_MODE,
USB_DIR_OUT | USB_TYPE_CLASS,
0x12, 0, usb->data, sizeof(data));
}
static int mt76x2u_mcu_load_rom_patch(struct mt76x2_dev *dev)
{
bool rom_protect = !is_mt7612(dev);
struct mt76x2_patch_header *hdr;
u32 val, patch_mask, patch_reg;
const struct firmware *fw;
int err;
if (rom_protect &&
!mt76_poll_msec(dev, MT_MCU_SEMAPHORE_03, 1, 1, 600)) {
dev_err(dev->mt76.dev,
"could not get hardware semaphore for ROM PATCH\n");
return -ETIMEDOUT;
}
if (mt76xx_rev(dev) >= MT76XX_REV_E3) {
patch_mask = BIT(0);
patch_reg = MT_MCU_CLOCK_CTL;
} else {
patch_mask = BIT(1);
patch_reg = MT_MCU_COM_REG0;
}
if (rom_protect && (mt76_rr(dev, patch_reg) & patch_mask)) {
dev_info(dev->mt76.dev, "ROM patch already applied\n");
return 0;
}
err = request_firmware(&fw, MT7662U_ROM_PATCH, dev->mt76.dev);
if (err < 0)
return err;
if (!fw || !fw->data || fw->size <= sizeof(*hdr)) {
dev_err(dev->mt76.dev, "failed to load firmware\n");
err = -EIO;
goto out;
}
hdr = (struct mt76x2_patch_header *)fw->data;
dev_info(dev->mt76.dev, "ROM patch build: %.15s\n", hdr->build_time);
/* enable USB_DMA_CFG */
val = MT_USB_DMA_CFG_RX_BULK_EN |
MT_USB_DMA_CFG_TX_BULK_EN |
FIELD_PREP(MT_USB_DMA_CFG_RX_BULK_AGG_TOUT, 0x20);
mt76_wr(dev, MT_VEND_ADDR(CFG, MT_USB_U3DMA_CFG), val);
/* vendor reset */
mt76u_mcu_fw_reset(&dev->mt76);
usleep_range(5000, 10000);
/* enable FCE to send in-band cmd */
mt76_wr(dev, MT_FCE_PSE_CTRL, 0x1);
/* FCE tx_fs_base_ptr */
mt76_wr(dev, MT_TX_CPU_FROM_FCE_BASE_PTR, 0x400230);
/* FCE tx_fs_max_cnt */
mt76_wr(dev, MT_TX_CPU_FROM_FCE_MAX_COUNT, 0x1);
/* FCE pdma enable */
mt76_wr(dev, MT_FCE_PDMA_GLOBAL_CONF, 0x44);
/* FCE skip_fs_en */
mt76_wr(dev, MT_FCE_SKIP_FS, 0x3);
err = mt76u_mcu_fw_send_data(&dev->mt76, fw->data + sizeof(*hdr),
fw->size - sizeof(*hdr),
MCU_ROM_PATCH_MAX_PAYLOAD,
MT76U_MCU_ROM_PATCH_OFFSET);
if (err < 0) {
err = -EIO;
goto out;
}
mt76x2u_mcu_enable_patch(dev);
mt76x2u_mcu_reset_wmt(dev);
mdelay(20);
if (!mt76_poll_msec(dev, patch_reg, patch_mask, patch_mask, 100)) {
dev_err(dev->mt76.dev, "failed to load ROM patch\n");
err = -ETIMEDOUT;
}
out:
if (rom_protect)
mt76_wr(dev, MT_MCU_SEMAPHORE_03, 1);
release_firmware(fw);
return err;
}
static int mt76x2u_mcu_load_firmware(struct mt76x2_dev *dev)
{
u32 val, dlm_offset = MT76U_MCU_DLM_OFFSET;
const struct mt76x2_fw_header *hdr;
int err, len, ilm_len, dlm_len;
const struct firmware *fw;
err = request_firmware(&fw, MT7662U_FIRMWARE, dev->mt76.dev);
if (err < 0)
return err;
if (!fw || !fw->data || fw->size < sizeof(*hdr)) {
err = -EINVAL;
goto out;
}
hdr = (const struct mt76x2_fw_header *)fw->data;
ilm_len = le32_to_cpu(hdr->ilm_len);
dlm_len = le32_to_cpu(hdr->dlm_len);
len = sizeof(*hdr) + ilm_len + dlm_len;
if (fw->size != len) {
err = -EINVAL;
goto out;
}
val = le16_to_cpu(hdr->fw_ver);
dev_info(dev->mt76.dev, "Firmware Version: %d.%d.%02d\n",
(val >> 12) & 0xf, (val >> 8) & 0xf, val & 0xf);
val = le16_to_cpu(hdr->build_ver);
dev_info(dev->mt76.dev, "Build: %x\n", val);
dev_info(dev->mt76.dev, "Build Time: %.16s\n", hdr->build_time);
/* vendor reset */
mt76u_mcu_fw_reset(&dev->mt76);
usleep_range(5000, 10000);
/* enable USB_DMA_CFG */
val = MT_USB_DMA_CFG_RX_BULK_EN |
MT_USB_DMA_CFG_TX_BULK_EN |
FIELD_PREP(MT_USB_DMA_CFG_RX_BULK_AGG_TOUT, 0x20);
mt76_wr(dev, MT_VEND_ADDR(CFG, MT_USB_U3DMA_CFG), val);
/* enable FCE to send in-band cmd */
mt76_wr(dev, MT_FCE_PSE_CTRL, 0x1);
/* FCE tx_fs_base_ptr */
mt76_wr(dev, MT_TX_CPU_FROM_FCE_BASE_PTR, 0x400230);
/* FCE tx_fs_max_cnt */
mt76_wr(dev, MT_TX_CPU_FROM_FCE_MAX_COUNT, 0x1);
/* FCE pdma enable */
mt76_wr(dev, MT_FCE_PDMA_GLOBAL_CONF, 0x44);
/* FCE skip_fs_en */
mt76_wr(dev, MT_FCE_SKIP_FS, 0x3);
/* load ILM */
err = mt76u_mcu_fw_send_data(&dev->mt76, fw->data + sizeof(*hdr),
ilm_len, MCU_FW_URB_MAX_PAYLOAD,
MT76U_MCU_ILM_OFFSET);
if (err < 0) {
err = -EIO;
goto out;
}
/* load DLM */
if (mt76xx_rev(dev) >= MT76XX_REV_E3)
dlm_offset += 0x800;
err = mt76u_mcu_fw_send_data(&dev->mt76,
fw->data + sizeof(*hdr) + ilm_len,
dlm_len, MCU_FW_URB_MAX_PAYLOAD,
dlm_offset);
if (err < 0) {
err = -EIO;
goto out;
}
mt76x2u_mcu_load_ivb(dev);
if (!mt76_poll_msec(dev, MT_MCU_COM_REG0, 1, 1, 100)) {
dev_err(dev->mt76.dev, "firmware failed to start\n");
err = -ETIMEDOUT;
goto out;
}
mt76_set(dev, MT_MCU_COM_REG0, BIT(1));
/* enable FCE to send in-band cmd */
mt76_wr(dev, MT_FCE_PSE_CTRL, 0x1);
dev_dbg(dev->mt76.dev, "firmware running\n");
out:
release_firmware(fw);
return err;
}
int mt76x2u_mcu_fw_init(struct mt76x2_dev *dev)
{
int err;
err = mt76x2u_mcu_load_rom_patch(dev);
if (err < 0)
return err;
return mt76x2u_mcu_load_firmware(dev);
}
int mt76x2u_mcu_init(struct mt76x2_dev *dev)
{
int err;
err = mt76x2u_mcu_function_select(dev, Q_SELECT, 1);
if (err < 0)
return err;
return mt76x2u_mcu_set_radio_state(dev, true);
}
void mt76x2u_mcu_deinit(struct mt76x2_dev *dev)
{
struct mt76_usb *usb = &dev->mt76.usb;
usb_kill_urb(usb->mcu.res.urb);
mt76u_buf_free(&usb->mcu.res);
}

303
drivers/net/wireless/mediatek/mt76/mt76x2u_phy.c Normal file
View File

@ -0,0 +1,303 @@
/*
* Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@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.
*/
#include "mt76x2u.h"
#include "mt76x2_eeprom.h"
void mt76x2u_phy_set_rxpath(struct mt76x2_dev *dev)
{
u32 val;
val = mt76_rr(dev, MT_BBP(AGC, 0));
val &= ~BIT(4);
switch (dev->chainmask & 0xf) {
case 2:
val |= BIT(3);
break;
default:
val &= ~BIT(3);
break;
}
mt76_wr(dev, MT_BBP(AGC, 0), val);
}
void mt76x2u_phy_set_txdac(struct mt76x2_dev *dev)
{
int txpath;
txpath = (dev->chainmask >> 8) & 0xf;
switch (txpath) {
case 2:
mt76_set(dev, MT_BBP(TXBE, 5), 0x3);
break;
default:
mt76_clear(dev, MT_BBP(TXBE, 5), 0x3);
break;
}
}
void mt76x2u_phy_channel_calibrate(struct mt76x2_dev *dev)
{
struct ieee80211_channel *chan = dev->mt76.chandef.chan;
bool is_5ghz = chan->band == NL80211_BAND_5GHZ;
if (mt76x2_channel_silent(dev))
return;
mt76x2u_mac_stop(dev);
if (is_5ghz)
mt76x2u_mcu_calibrate(dev, MCU_CAL_LC, 0);
mt76x2u_mcu_calibrate(dev, MCU_CAL_TX_LOFT, is_5ghz);
mt76x2u_mcu_calibrate(dev, MCU_CAL_TXIQ, is_5ghz);
mt76x2u_mcu_calibrate(dev, MCU_CAL_RXIQC_FI, is_5ghz);
mt76x2u_mcu_calibrate(dev, MCU_CAL_TEMP_SENSOR, 0);
mt76x2u_mac_resume(dev);
}
static void
mt76x2u_phy_tssi_compensate(struct mt76x2_dev *dev)
{
struct ieee80211_channel *chan = dev->mt76.chandef.chan;
struct mt76x2_tx_power_info txp;
struct mt76x2_tssi_comp t = {};
if (!dev->cal.tssi_cal_done)
return;
if (!dev->cal.tssi_comp_pending) {
/* TSSI trigger */
t.cal_mode = BIT(0);
mt76x2u_mcu_tssi_comp(dev, &t);
dev->cal.tssi_comp_pending = true;
} else {
if (mt76_rr(dev, MT_BBP(CORE, 34)) & BIT(4))
return;
dev->cal.tssi_comp_pending = false;
mt76x2_get_power_info(dev, &txp, chan);
if (mt76x2_ext_pa_enabled(dev, chan->band))
t.pa_mode = 1;
t.cal_mode = BIT(1);
t.slope0 = txp.chain[0].tssi_slope;
t.offset0 = txp.chain[0].tssi_offset;
t.slope1 = txp.chain[1].tssi_slope;
t.offset1 = txp.chain[1].tssi_offset;
mt76x2u_mcu_tssi_comp(dev, &t);
if (t.pa_mode || dev->cal.dpd_cal_done)
return;
usleep_range(10000, 20000);
mt76x2u_mcu_calibrate(dev, MCU_CAL_DPD, chan->hw_value);
dev->cal.dpd_cal_done = true;
}
}
static void
mt76x2u_phy_update_channel_gain(struct mt76x2_dev *dev)
{
u8 channel = dev->mt76.chandef.chan->hw_value;
int freq, freq1;
u32 false_cca;
freq = dev->mt76.chandef.chan->center_freq;
freq1 = dev->mt76.chandef.center_freq1;
switch (dev->mt76.chandef.width) {
case NL80211_CHAN_WIDTH_80: {
int ch_group_index;
ch_group_index = (freq - freq1 + 30) / 20;
if (WARN_ON(ch_group_index < 0 || ch_group_index > 3))
ch_group_index = 0;
channel += 6 - ch_group_index * 4;
break;
}
case NL80211_CHAN_WIDTH_40:
if (freq1 > freq)
channel += 2;
else
channel -= 2;
break;
default:
break;
}
dev->cal.avg_rssi_all = mt76x2_phy_get_min_avg_rssi(dev);
false_cca = FIELD_GET(MT_RX_STAT_1_CCA_ERRORS,
mt76_rr(dev, MT_RX_STAT_1));
mt76x2u_mcu_set_dynamic_vga(dev, channel, false, false,
dev->cal.avg_rssi_all, false_cca);
}
void mt76x2u_phy_calibrate(struct work_struct *work)
{
struct mt76x2_dev *dev;
dev = container_of(work, struct mt76x2_dev, cal_work.work);
mt76x2u_phy_tssi_compensate(dev);
mt76x2u_phy_update_channel_gain(dev);
ieee80211_queue_delayed_work(mt76_hw(dev), &dev->cal_work,
MT_CALIBRATE_INTERVAL);
}
int mt76x2u_phy_set_channel(struct mt76x2_dev *dev,
struct cfg80211_chan_def *chandef)
{
u32 ext_cca_chan[4] = {
[0] = FIELD_PREP(MT_EXT_CCA_CFG_CCA0, 0) |
FIELD_PREP(MT_EXT_CCA_CFG_CCA1, 1) |
FIELD_PREP(MT_EXT_CCA_CFG_CCA2, 2) |
FIELD_PREP(MT_EXT_CCA_CFG_CCA3, 3) |
FIELD_PREP(MT_EXT_CCA_CFG_CCA_MASK, BIT(0)),
[1] = FIELD_PREP(MT_EXT_CCA_CFG_CCA0, 1) |
FIELD_PREP(MT_EXT_CCA_CFG_CCA1, 0) |
FIELD_PREP(MT_EXT_CCA_CFG_CCA2, 2) |
FIELD_PREP(MT_EXT_CCA_CFG_CCA3, 3) |
FIELD_PREP(MT_EXT_CCA_CFG_CCA_MASK, BIT(1)),
[2] = FIELD_PREP(MT_EXT_CCA_CFG_CCA0, 2) |
FIELD_PREP(MT_EXT_CCA_CFG_CCA1, 3) |
FIELD_PREP(MT_EXT_CCA_CFG_CCA2, 1) |
FIELD_PREP(MT_EXT_CCA_CFG_CCA3, 0) |
FIELD_PREP(MT_EXT_CCA_CFG_CCA_MASK, BIT(2)),
[3] = FIELD_PREP(MT_EXT_CCA_CFG_CCA0, 3) |
FIELD_PREP(MT_EXT_CCA_CFG_CCA1, 2) |
FIELD_PREP(MT_EXT_CCA_CFG_CCA2, 1) |
FIELD_PREP(MT_EXT_CCA_CFG_CCA3, 0) |
FIELD_PREP(MT_EXT_CCA_CFG_CCA_MASK, BIT(3)),
};
bool scan = test_bit(MT76_SCANNING, &dev->mt76.state);
struct ieee80211_channel *chan = chandef->chan;
u8 channel = chan->hw_value, bw, bw_index;
int ch_group_index, freq, freq1, ret;
dev->cal.channel_cal_done = false;
freq = chandef->chan->center_freq;
freq1 = chandef->center_freq1;
switch (chandef->width) {
case NL80211_CHAN_WIDTH_40:
bw = 1;
if (freq1 > freq) {
bw_index = 1;
ch_group_index = 0;
} else {
bw_index = 3;
ch_group_index = 1;
}
channel += 2 - ch_group_index * 4;
break;
case NL80211_CHAN_WIDTH_80:
ch_group_index = (freq - freq1 + 30) / 20;
if (WARN_ON(ch_group_index < 0 || ch_group_index > 3))
ch_group_index = 0;
bw = 2;
bw_index = ch_group_index;
channel += 6 - ch_group_index * 4;
break;
default:
bw = 0;
bw_index = 0;
ch_group_index = 0;
break;
}
mt76x2_read_rx_gain(dev);
mt76x2_phy_set_txpower_regs(dev, chan->band);
mt76x2_configure_tx_delay(dev, chan->band, bw);
mt76x2_phy_set_txpower(dev);
mt76x2_phy_set_band(dev, chan->band, ch_group_index & 1);
mt76x2_phy_set_bw(dev, chandef->width, ch_group_index);
mt76_rmw(dev, MT_EXT_CCA_CFG,
(MT_EXT_CCA_CFG_CCA0 |
MT_EXT_CCA_CFG_CCA1 |
MT_EXT_CCA_CFG_CCA2 |
MT_EXT_CCA_CFG_CCA3 |
MT_EXT_CCA_CFG_CCA_MASK),
ext_cca_chan[ch_group_index]);
ret = mt76x2u_mcu_set_channel(dev, channel, bw, bw_index, scan);
if (ret)
return ret;
mt76x2u_mcu_init_gain(dev, channel, dev->cal.rx.mcu_gain, true);
/* Enable LDPC Rx */
if (mt76xx_rev(dev) >= MT76XX_REV_E3)
mt76_set(dev, MT_BBP(RXO, 13), BIT(10));
if (!dev->cal.init_cal_done) {
u8 val = mt76x2_eeprom_get(dev, MT_EE_BT_RCAL_RESULT);
if (val != 0xff)
mt76x2u_mcu_calibrate(dev, MCU_CAL_R, 0);
}
mt76x2u_mcu_calibrate(dev, MCU_CAL_RXDCOC, channel);
/* Rx LPF calibration */
if (!dev->cal.init_cal_done)
mt76x2u_mcu_calibrate(dev, MCU_CAL_RC, 0);
dev->cal.init_cal_done = true;
mt76_wr(dev, MT_BBP(AGC, 61), 0xff64a4e2);
mt76_wr(dev, MT_BBP(AGC, 7), 0x08081010);
mt76_wr(dev, MT_BBP(AGC, 11), 0x00000404);
mt76_wr(dev, MT_BBP(AGC, 2), 0x00007070);
mt76_wr(dev, MT_TXOP_CTRL_CFG, 0X04101b3f);
mt76_set(dev, MT_BBP(TXO, 4), BIT(25));
mt76_set(dev, MT_BBP(RXO, 13), BIT(8));
if (scan)
return 0;
if (mt76x2_tssi_enabled(dev)) {
/* init default values for temp compensation */
mt76_rmw_field(dev, MT_TX_ALC_CFG_1, MT_TX_ALC_CFG_1_TEMP_COMP,
0x38);
mt76_rmw_field(dev, MT_TX_ALC_CFG_2, MT_TX_ALC_CFG_2_TEMP_COMP,
0x38);
/* init tssi calibration */
if (!mt76x2_channel_silent(dev)) {
struct ieee80211_channel *chan;
u32 flag = 0;
chan = dev->mt76.chandef.chan;
if (chan->band == NL80211_BAND_5GHZ)
flag |= BIT(0);
if (mt76x2_ext_pa_enabled(dev, chan->band))
flag |= BIT(8);
mt76x2u_mcu_calibrate(dev, MCU_CAL_TSSI, flag);
dev->cal.tssi_cal_done = true;
}
}
ieee80211_queue_delayed_work(mt76_hw(dev), &dev->cal_work,
MT_CALIBRATE_INTERVAL);
return 0;
}