Commit c948b5da authored by Deren Wu's avatar Deren Wu Committed by Felix Fietkau
Browse files

wifi: mt76: mt7925: add Mediatek Wi-Fi7 driver for mt7925 chips 



Add mt7925, a new mac80211 driver for the MediaTek Wi-Fi 7 (802.11be) device
Filogic 360, which can support Station, AP, P2P, and monitor modes.
Filogic 360 supports max 4096-QAM/160MHz radio operation at 6 GHz, 5 GHz,
or 2.4 GHz with 2x2 antennas. This chip supports PCIe and USB bus type.

mt7925 supports Wi-Fi 6E and EHT rate with single link only at this moment,
whereas Wi-Fi 7 and its specific features are working in progress. They will be
introduced in further patches.

The driver is build tested by Intel's kernel test robot with both GCC and Clang
with several architecture. Sparse reports no warnings.

There are multiple authors, they are listed in alphabetical order below.

Co-developed-by: default avatarHao Zhang <hao.zhang@mediatek.com>
Signed-off-by: default avatarHao Zhang <hao.zhang@mediatek.com>
Co-developed-by: default avatarLeon Yen <leon.yen@mediatek.com>
Signed-off-by: default avatarLeon Yen <leon.yen@mediatek.com>
Co-developed-by: default avatarLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: default avatarLorenzo Bianconi <lorenzo@kernel.org>
Co-developed-by: default avatarMingyen Hsieh <mingyen.hsieh@mediatek.com>
Signed-off-by: default avatarMingyen Hsieh <mingyen.hsieh@mediatek.com>
Co-developed-by: default avatarNelson Yu <nelson.yu@mediatek.com>
Signed-off-by: default avatarNelson Yu <nelson.yu@mediatek.com>
Co-developed-by: default avatarQuan Zhou <quan.zhou@mediatek.com>
Signed-off-by: default avatarQuan Zhou <quan.zhou@mediatek.com>
Co-developed-by: default avatarRong Yan <rong.yan@mediatek.com>
Signed-off-by: default avatarRong Yan <rong.yan@mediatek.com>
Signed-off-by: default avatarDeren Wu <deren.wu@mediatek.com>
Signed-off-by: default avatarFelix Fietkau <nbd@nbd.name>
parent c558d22e

drivers/net/wireless/mediatek/mt76/Kconfig

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Original line number Diff line number Diff line
@@ -44,3 +44,4 @@ source "drivers/net/wireless/mediatek/mt76/mt7615/Kconfig" 
source "drivers/net/wireless/mediatek/mt76/mt7915/Kconfig"

source "drivers/net/wireless/mediatek/mt76/mt7921/Kconfig"

source "drivers/net/wireless/mediatek/mt76/mt7996/Kconfig"

source "drivers/net/wireless/mediatek/mt76/mt7925/Kconfig"

drivers/net/wireless/mediatek/mt76/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -44,3 +44,4 @@ obj-$(CONFIG_MT7615_COMMON) += mt7615/ 
obj-$(CONFIG_MT7915E) += mt7915/

obj-$(CONFIG_MT7921_COMMON) += mt7921/

obj-$(CONFIG_MT7996E) += mt7996/

obj-$(CONFIG_MT7925_COMMON) += mt7925/

drivers/net/wireless/mediatek/mt76/mt7925/Kconfig

0 → 100644
+30 −0
Original line number Diff line number Diff line 
# SPDX-License-Identifier: ISC

config MT7925_COMMON

	tristate

	select MT792x_LIB

	select WANT_DEV_COREDUMP



config MT7925E

	tristate "MediaTek MT7925E (PCIe) support"

	select MT7925_COMMON

	depends on MAC80211

	depends on PCI

	help

	  This adds support for MT7925-based wireless PCIe devices,

	  which support operation at 6GHz, 5GHz, and 2.4GHz IEEE 802.11be

	  2x2:2SS 4096-QAM, 160MHz channels.



	  To compile this driver as a module, choose M here.



config MT7925U

	tristate "MediaTek MT7925U (USB) support"

	select MT792x_USB

	select MT7925_COMMON

	depends on MAC80211

	depends on USB

	help

	  This adds support for MT7925-based wireless USB devices,

	  which support operation at 6GHz, 5GHz, and 2.4GHz IEEE 802.11be

	  2x2:2SS 4096-QAM, 160MHz channels.



	  To compile this driver as a module, choose M here.

drivers/net/wireless/mediatek/mt76/mt7925/Makefile

0 → 100644
+9 −0
Original line number Diff line number Diff line 
# SPDX-License-Identifier: ISC



obj-$(CONFIG_MT7925_COMMON) += mt7925-common.o

obj-$(CONFIG_MT7925E) += mt7925e.o

obj-$(CONFIG_MT7925U) += mt7925u.o



mt7925-common-y := mac.o mcu.o main.o init.o debugfs.o

mt7925e-y := pci.o pci_mac.o pci_mcu.o

mt7925u-y := usb.o

drivers/net/wireless/mediatek/mt76/mt7925/debugfs.c

0 → 100644
+319 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: ISC

/* Copyright (C) 2023 MediaTek Inc. */



#include "mt7925.h"

#include "mcu.h"



static int

mt7925_reg_set(void *data, u64 val)

{

	struct mt792x_dev *dev = data;

	u32 regval = val;



	mt792x_mutex_acquire(dev);

	mt7925_mcu_regval(dev, dev->mt76.debugfs_reg, &regval, true);

	mt792x_mutex_release(dev);



	return 0;

}



static int

mt7925_reg_get(void *data, u64 *val)

{

	struct mt792x_dev *dev = data;

	u32 regval;

	int ret;



	mt792x_mutex_acquire(dev);

	ret = mt7925_mcu_regval(dev, dev->mt76.debugfs_reg, &regval, false);

	mt792x_mutex_release(dev);

	if (!ret)

		*val = regval;



	return 0;

}



DEFINE_DEBUGFS_ATTRIBUTE(fops_regval, mt7925_reg_get, mt7925_reg_set,

			 "0x%08llx\n");

static int

mt7925_fw_debug_set(void *data, u64 val)

{

	struct mt792x_dev *dev = data;



	mt792x_mutex_acquire(dev);



	dev->fw_debug = (u8)val;

	mt7925_mcu_fw_log_2_host(dev, dev->fw_debug);



	mt792x_mutex_release(dev);



	return 0;

}



static int

mt7925_fw_debug_get(void *data, u64 *val)

{

	struct mt792x_dev *dev = data;



	*val = dev->fw_debug;



	return 0;

}



DEFINE_DEBUGFS_ATTRIBUTE(fops_fw_debug, mt7925_fw_debug_get,

			 mt7925_fw_debug_set, "%lld\n");



DEFINE_SHOW_ATTRIBUTE(mt792x_tx_stats);



static void

mt7925_seq_puts_array(struct seq_file *file, const char *str,

		      s8 val[][2], int len, u8 band_idx)

{

	int i;



	seq_printf(file, "%-22s:", str);

	for (i = 0; i < len; i++)

		if (val[i][band_idx] == 127)

			seq_printf(file, " %6s", "N.A");

		else

			seq_printf(file, " %6d", val[i][band_idx]);

	seq_puts(file, "\n");

}



#define mt7925_print_txpwr_entry(prefix, rate, idx)	\

({							\

	mt7925_seq_puts_array(s, #prefix " (tmac)",	\

			      txpwr->rate,		\

			      ARRAY_SIZE(txpwr->rate),	\

			      idx);			\

})



static inline void

mt7925_eht_txpwr(struct seq_file *s, struct mt7925_txpwr *txpwr, u8 band_idx)

{

	seq_printf(s, "%-22s  %6s %6s %6s %6s %6s %6s %6s %6s %6s %6s %6s %6s %6s %6s %6s %6s\n",

		   " ", "mcs0", "mcs1", "mcs2", "mcs3", "mcs4", "mcs5",

		   "mcs6", "mcs7", "mcs8", "mcs9", "mcs10", "mcs11",

		   "mcs12", "mcs13", "mcs14", "mcs15");

	mt7925_print_txpwr_entry(EHT26, eht26, band_idx);

	mt7925_print_txpwr_entry(EHT52, eht52, band_idx);

	mt7925_print_txpwr_entry(EHT106, eht106, band_idx);

	mt7925_print_txpwr_entry(EHT242, eht242, band_idx);

	mt7925_print_txpwr_entry(EHT484, eht484, band_idx);



	mt7925_print_txpwr_entry(EHT996, eht996, band_idx);

	mt7925_print_txpwr_entry(EHT996x2, eht996x2, band_idx);

	mt7925_print_txpwr_entry(EHT996x4, eht996x4, band_idx);

	mt7925_print_txpwr_entry(EHT26_52, eht26_52, band_idx);

	mt7925_print_txpwr_entry(EHT26_106, eht26_106, band_idx);

	mt7925_print_txpwr_entry(EHT484_242, eht484_242, band_idx);

	mt7925_print_txpwr_entry(EHT996_484, eht996_484, band_idx);

	mt7925_print_txpwr_entry(EHT996_484_242, eht996_484_242, band_idx);

	mt7925_print_txpwr_entry(EHT996x2_484, eht996x2_484, band_idx);

	mt7925_print_txpwr_entry(EHT996x3, eht996x3, band_idx);

	mt7925_print_txpwr_entry(EHT996x3_484, eht996x3_484, band_idx);

}



static int

mt7925_txpwr(struct seq_file *s, void *data)

{

	struct mt792x_dev *dev = dev_get_drvdata(s->private);

	struct mt7925_txpwr *txpwr = NULL;

	u8 band_idx = dev->mphy.band_idx;

	int ret = 0;



	txpwr = devm_kmalloc(dev->mt76.dev, sizeof(*txpwr), GFP_KERNEL);



	if (!txpwr)

		return -ENOMEM;



	mt792x_mutex_acquire(dev);

	ret = mt7925_get_txpwr_info(dev, band_idx, txpwr);

	mt792x_mutex_release(dev);



	if (ret)

		goto out;



	seq_printf(s, "%-22s  %6s %6s %6s %6s\n",

		   " ", "1m", "2m", "5m", "11m");

	mt7925_print_txpwr_entry(CCK, cck, band_idx);



	seq_printf(s, "%-22s  %6s %6s %6s %6s %6s %6s %6s %6s\n",

		   " ", "6m", "9m", "12m", "18m", "24m", "36m",

		   "48m", "54m");

	mt7925_print_txpwr_entry(OFDM, ofdm, band_idx);



	seq_printf(s, "%-22s  %6s %6s %6s %6s %6s %6s %6s %6s\n",

		   " ", "mcs0", "mcs1", "mcs2", "mcs3", "mcs4", "mcs5",

		   "mcs6", "mcs7");

	mt7925_print_txpwr_entry(HT20, ht20, band_idx);



	seq_printf(s, "%-22s  %6s %6s %6s %6s %6s %6s %6s %6s %6s\n",

		   " ", "mcs0", "mcs1", "mcs2", "mcs3", "mcs4", "mcs5",

		   "mcs6", "mcs7", "mcs32");

	mt7925_print_txpwr_entry(HT40, ht40, band_idx);



	seq_printf(s, "%-22s  %6s %6s %6s %6s %6s %6s %6s %6s %6s %6s %6s %6s\n",

		   " ", "mcs0", "mcs1", "mcs2", "mcs3", "mcs4", "mcs5",

		   "mcs6", "mcs7", "mcs8", "mcs9", "mcs10", "mcs11");

	mt7925_print_txpwr_entry(VHT20, vht20, band_idx);

	mt7925_print_txpwr_entry(VHT40, vht40, band_idx);



	mt7925_print_txpwr_entry(VHT80, vht80, band_idx);

	mt7925_print_txpwr_entry(VHT160, vht160, band_idx);



	mt7925_print_txpwr_entry(HE26, he26, band_idx);

	mt7925_print_txpwr_entry(HE52, he52, band_idx);

	mt7925_print_txpwr_entry(HE106, he106, band_idx);

	mt7925_print_txpwr_entry(HE242, he242, band_idx);

	mt7925_print_txpwr_entry(HE484, he484, band_idx);



	mt7925_print_txpwr_entry(HE996, he996, band_idx);

	mt7925_print_txpwr_entry(HE996x2, he996x2, band_idx);



	mt7925_eht_txpwr(s, txpwr, band_idx);



out:

	devm_kfree(dev->mt76.dev, txpwr);

	return ret;

}



static int

mt7925_pm_set(void *data, u64 val)

{

	struct mt792x_dev *dev = data;

	struct mt76_connac_pm *pm = &dev->pm;



	if (mt76_is_usb(&dev->mt76))

		return -EOPNOTSUPP;



	mutex_lock(&dev->mt76.mutex);



	if (val == pm->enable_user)

		goto out;



	if (!pm->enable_user) {

		pm->stats.last_wake_event = jiffies;

		pm->stats.last_doze_event = jiffies;

	}

	/* make sure the chip is awake here and ps_work is scheduled

	 * just at end of the this routine.

	 */

	pm->enable = false;

	mt76_connac_pm_wake(&dev->mphy, pm);



	pm->enable_user = val;

	mt7925_set_runtime_pm(dev);

	mt76_connac_power_save_sched(&dev->mphy, pm);

out:

	mutex_unlock(&dev->mt76.mutex);



	return 0;

}



static int

mt7925_pm_get(void *data, u64 *val)

{

	struct mt792x_dev *dev = data;



	*val = dev->pm.enable_user;



	return 0;

}



DEFINE_DEBUGFS_ATTRIBUTE(fops_pm, mt7925_pm_get, mt7925_pm_set, "%lld\n");



static int

mt7925_deep_sleep_set(void *data, u64 val)

{

	struct mt792x_dev *dev = data;

	struct mt76_connac_pm *pm = &dev->pm;

	bool monitor = !!(dev->mphy.hw->conf.flags & IEEE80211_CONF_MONITOR);

	bool enable = !!val;



	if (mt76_is_usb(&dev->mt76))

		return -EOPNOTSUPP;



	mt792x_mutex_acquire(dev);

	if (pm->ds_enable_user == enable)

		goto out;



	pm->ds_enable_user = enable;

	pm->ds_enable = enable && !monitor;

	mt7925_mcu_set_deep_sleep(dev, pm->ds_enable);

out:

	mt792x_mutex_release(dev);



	return 0;

}



static int

mt7925_deep_sleep_get(void *data, u64 *val)

{

	struct mt792x_dev *dev = data;



	*val = dev->pm.ds_enable_user;



	return 0;

}



DEFINE_DEBUGFS_ATTRIBUTE(fops_ds, mt7925_deep_sleep_get,

			 mt7925_deep_sleep_set, "%lld\n");



DEFINE_DEBUGFS_ATTRIBUTE(fops_pm_idle_timeout, mt792x_pm_idle_timeout_get,

			 mt792x_pm_idle_timeout_set, "%lld\n");



static int mt7925_chip_reset(void *data, u64 val)

{

	struct mt792x_dev *dev = data;

	int ret = 0;



	switch (val) {

	case 1:

		/* Reset wifisys directly. */

		mt792x_reset(&dev->mt76);

		break;

	default:

		/* Collect the core dump before reset wifisys. */

		mt792x_mutex_acquire(dev);

		ret = mt7925_mcu_chip_config(dev, "assert");

		mt792x_mutex_release(dev);

		break;

	}



	return ret;

}



DEFINE_DEBUGFS_ATTRIBUTE(fops_reset, NULL, mt7925_chip_reset, "%lld\n");



int mt7925_init_debugfs(struct mt792x_dev *dev)

{

	struct dentry *dir;



	dir = mt76_register_debugfs_fops(&dev->mphy, &fops_regval);

	if (!dir)

		return -ENOMEM;



	if (mt76_is_mmio(&dev->mt76))

		debugfs_create_devm_seqfile(dev->mt76.dev, "xmit-queues",

					    dir, mt792x_queues_read);

	else

		debugfs_create_devm_seqfile(dev->mt76.dev, "xmit-queues",

					    dir, mt76_queues_read);



	debugfs_create_devm_seqfile(dev->mt76.dev, "acq", dir,

				    mt792x_queues_acq);

	debugfs_create_devm_seqfile(dev->mt76.dev, "txpower_sku", dir,

				    mt7925_txpwr);

	debugfs_create_file("tx_stats", 0400, dir, dev, &mt792x_tx_stats_fops);

	debugfs_create_file("fw_debug", 0600, dir, dev, &fops_fw_debug);

	debugfs_create_file("runtime-pm", 0600, dir, dev, &fops_pm);

	debugfs_create_file("idle-timeout", 0600, dir, dev,

			    &fops_pm_idle_timeout);

	debugfs_create_file("chip_reset", 0600, dir, dev, &fops_reset);

	debugfs_create_devm_seqfile(dev->mt76.dev, "runtime_pm_stats", dir,

				    mt792x_pm_stats);

	debugfs_create_file("deep-sleep", 0600, dir, dev, &fops_ds);



	return 0;

}