wifi: mt76: move wed common utilities in wed.c

Introduce wed.c in order to collect mt76 wed common codebase used by
mt7915 and mt7996 drivers.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: mt7996: set DMA mask to 36 bits for boards with more than 4GB of RAM

Introduce the capability to run mt7996 driver on boards with more than
4GB of memory.

Co-developed-by: Rex Lu <rex.lu@mediatek.com>
Signed-off-by: Rex Lu <rex.lu@mediatek.com>
Signed-off-by: Sujuan Chen <sujuan.chen@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: move wed reset common code in mt76 module

Move WED reset code shared between mt7915 and mt7996 in common module.
This is a preliminary patch to introduce WED reset support for mt7996.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: move mt76_mmio_wed_offload_{enable,disable} in common code

mt76_mmio_wed_offload_enable and mt76_mmio_wed_offload_disable routines
will be reused by mt7996 driver for wed support.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: mmio: move mt76_mmio_wed_{init,release}_rx_buf in common code

Move mt76_mmio_wed_init_rx_buf and mt76_mmio_wed_release_rx_buf routines
in common code.
This is a preliminary patch to introduce WED support for mt7996

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7915: add Wireless Ethernet Dispatch support

This is used to support hardware flow offloading from Ethernet to WLAN

Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: rework IRQ handling to prepare for MSI support

With MSI interrupts, IRQs must not be enabled from within the IRQ handler,
because that can lead to lost events.
Defer IRQ processing to a tasklet, which is also responsible for enabling
IRQs (to avoid race conditions against the handler)

Co-developed-by: Soul Huang <Soul.Huang@mediatek.com>
Acked-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Soul Huang <soul.huang@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: Introduce mt76_mcu data structure

Introduce mt76_mcu data structure to contain common fields between
mt76u_mcu and mt76e_mcu.
Initialize mcu common fields in mt76_alloc_device().
Rely on mt76_mcu in mt76_mcu_rx_event and in mt76_mcu_get_response
in order to reuse them in usb code

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: switch to SPDX tag instead of verbose boilerplate text

No functional change intended.

Add SPDX identifiers to all remaining files in /mt76.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: introduce mt76_mmio_read_copy routine

Add mt76_mmio_read_copy routine and the related function pointer in
mt76_bus_ops data structure. mt76_mmio_read_copy will be used to add
BIP_CMAC_128 cipher hw support to mt7615 driver

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: round up length on mt76_wr_copy

When beacon length is not a multiple of 4, the beacon could be sent with
the last 1-3 bytes corrupted. The skb data is guaranteed to have enough
room for reading beyond the end, because it is always followed by
skb_shared_info, so rounding up is safe.
All other callers of mt76_wr_copy have multiple-of-4 length already.

Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: use readl/writel instead of ioread32/iowrite32

Switching to readl/writel is faster because it gets rid of an unnecessary
wrapper with extra checks.

Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mmio: move mt76x02_set_irq_mask in mt76 module

Move mt76x02_set_irq_mask in mt76 module in order to be reused
adding support for mt7603 driver and remove duplicated code

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: allow to identify bus

Add helpers to identify bus type.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mmio: add implementation of wr_rp and rd_rp

Introduce mmio implementation of mt76_mmio_rd_rp and
mt76_mmio_wr_rp and remove mt76x2 duplicated code.
mt76_mmio_{wr,rd}_rp allows to reuse mt76x0 init code
adding mt76x0e support

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: move mt76x02_set_irq_mask in mt76x02_mmio.c

Move mt76x02_set_irq_mask, mt76x02_irq_enable and mt76x02_irq_disable
in mt76x02-lib module in order to be reused by mt76x0 driver.
Moreover move irq_lock and irqmask in mt76_mmio data structure

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: move __iomem regs in mt76_mmio

Move __iomem regs pointer in mt76_mmio data structure

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: introduce mmio data structure in mt76_dev

Introduce mt76_mmio data structure in mt76_dev and
move mt76x2_mcu in mt76_mmio. This is a preliminary
patch to unify mcu code between mt76x02{e,u} drivers

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: add common code shared between multiple chipsets

This will be used by drivers for MT76x2e, MT7603e and MT7628

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>