388 lines
12 KiB
C
388 lines
12 KiB
C
// SPDX-License-Identifier: ISC
|
|
/*
|
|
* Copyright (C) 2022 MediaTek Inc.
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/pci.h>
|
|
|
|
#include "mt7996.h"
|
|
#include "mac.h"
|
|
#include "../trace.h"
|
|
|
|
static const struct __base mt7996_reg_base[] = {
|
|
[WF_AGG_BASE] = { { 0x820e2000, 0x820f2000, 0x830e2000 } },
|
|
[WF_ARB_BASE] = { { 0x820e3000, 0x820f3000, 0x830e3000 } },
|
|
[WF_TMAC_BASE] = { { 0x820e4000, 0x820f4000, 0x830e4000 } },
|
|
[WF_RMAC_BASE] = { { 0x820e5000, 0x820f5000, 0x830e5000 } },
|
|
[WF_DMA_BASE] = { { 0x820e7000, 0x820f7000, 0x830e7000 } },
|
|
[WF_WTBLOFF_BASE] = { { 0x820e9000, 0x820f9000, 0x830e9000 } },
|
|
[WF_ETBF_BASE] = { { 0x820ea000, 0x820fa000, 0x830ea000 } },
|
|
[WF_LPON_BASE] = { { 0x820eb000, 0x820fb000, 0x830eb000 } },
|
|
[WF_MIB_BASE] = { { 0x820ed000, 0x820fd000, 0x830ed000 } },
|
|
[WF_RATE_BASE] = { { 0x820ee000, 0x820fe000, 0x830ee000 } },
|
|
};
|
|
|
|
static const struct __map mt7996_reg_map[] = {
|
|
{ 0x54000000, 0x02000, 0x1000 }, /* WFDMA_0 (PCIE0 MCU DMA0) */
|
|
{ 0x55000000, 0x03000, 0x1000 }, /* WFDMA_1 (PCIE0 MCU DMA1) */
|
|
{ 0x56000000, 0x04000, 0x1000 }, /* WFDMA reserved */
|
|
{ 0x57000000, 0x05000, 0x1000 }, /* WFDMA MCU wrap CR */
|
|
{ 0x58000000, 0x06000, 0x1000 }, /* WFDMA PCIE1 MCU DMA0 (MEM_DMA) */
|
|
{ 0x59000000, 0x07000, 0x1000 }, /* WFDMA PCIE1 MCU DMA1 */
|
|
{ 0x820c0000, 0x08000, 0x4000 }, /* WF_UMAC_TOP (PLE) */
|
|
{ 0x820c8000, 0x0c000, 0x2000 }, /* WF_UMAC_TOP (PSE) */
|
|
{ 0x820cc000, 0x0e000, 0x1000 }, /* WF_UMAC_TOP (PP) */
|
|
{ 0x74030000, 0x10000, 0x1000 }, /* PCIe MAC */
|
|
{ 0x820e0000, 0x20000, 0x0400 }, /* WF_LMAC_TOP BN0 (WF_CFG) */
|
|
{ 0x820e1000, 0x20400, 0x0200 }, /* WF_LMAC_TOP BN0 (WF_TRB) */
|
|
{ 0x820e2000, 0x20800, 0x0400 }, /* WF_LMAC_TOP BN0 (WF_AGG) */
|
|
{ 0x820e3000, 0x20c00, 0x0400 }, /* WF_LMAC_TOP BN0 (WF_ARB) */
|
|
{ 0x820e4000, 0x21000, 0x0400 }, /* WF_LMAC_TOP BN0 (WF_TMAC) */
|
|
{ 0x820e5000, 0x21400, 0x0800 }, /* WF_LMAC_TOP BN0 (WF_RMAC) */
|
|
{ 0x820ce000, 0x21c00, 0x0200 }, /* WF_LMAC_TOP (WF_SEC) */
|
|
{ 0x820e7000, 0x21e00, 0x0200 }, /* WF_LMAC_TOP BN0 (WF_DMA) */
|
|
{ 0x820cf000, 0x22000, 0x1000 }, /* WF_LMAC_TOP (WF_PF) */
|
|
{ 0x820e9000, 0x23400, 0x0200 }, /* WF_LMAC_TOP BN0 (WF_WTBLOFF) */
|
|
{ 0x820ea000, 0x24000, 0x0200 }, /* WF_LMAC_TOP BN0 (WF_ETBF) */
|
|
{ 0x820eb000, 0x24200, 0x0400 }, /* WF_LMAC_TOP BN0 (WF_LPON) */
|
|
{ 0x820ec000, 0x24600, 0x0200 }, /* WF_LMAC_TOP BN0 (WF_INT) */
|
|
{ 0x820ed000, 0x24800, 0x0800 }, /* WF_LMAC_TOP BN0 (WF_MIB) */
|
|
{ 0x820ca000, 0x26000, 0x2000 }, /* WF_LMAC_TOP BN0 (WF_MUCOP) */
|
|
{ 0x820d0000, 0x30000, 0x10000 }, /* WF_LMAC_TOP (WF_WTBLON) */
|
|
{ 0x40000000, 0x70000, 0x10000 }, /* WF_UMAC_SYSRAM */
|
|
{ 0x00400000, 0x80000, 0x10000 }, /* WF_MCU_SYSRAM */
|
|
{ 0x00410000, 0x90000, 0x10000 }, /* WF_MCU_SYSRAM (configure register) */
|
|
{ 0x820f0000, 0xa0000, 0x0400 }, /* WF_LMAC_TOP BN1 (WF_CFG) */
|
|
{ 0x820f1000, 0xa0600, 0x0200 }, /* WF_LMAC_TOP BN1 (WF_TRB) */
|
|
{ 0x820f2000, 0xa0800, 0x0400 }, /* WF_LMAC_TOP BN1 (WF_AGG) */
|
|
{ 0x820f3000, 0xa0c00, 0x0400 }, /* WF_LMAC_TOP BN1 (WF_ARB) */
|
|
{ 0x820f4000, 0xa1000, 0x0400 }, /* WF_LMAC_TOP BN1 (WF_TMAC) */
|
|
{ 0x820f5000, 0xa1400, 0x0800 }, /* WF_LMAC_TOP BN1 (WF_RMAC) */
|
|
{ 0x820f7000, 0xa1e00, 0x0200 }, /* WF_LMAC_TOP BN1 (WF_DMA) */
|
|
{ 0x820f9000, 0xa3400, 0x0200 }, /* WF_LMAC_TOP BN1 (WF_WTBLOFF) */
|
|
{ 0x820fa000, 0xa4000, 0x0200 }, /* WF_LMAC_TOP BN1 (WF_ETBF) */
|
|
{ 0x820fb000, 0xa4200, 0x0400 }, /* WF_LMAC_TOP BN1 (WF_LPON) */
|
|
{ 0x820fc000, 0xa4600, 0x0200 }, /* WF_LMAC_TOP BN1 (WF_INT) */
|
|
{ 0x820fd000, 0xa4800, 0x0800 }, /* WF_LMAC_TOP BN1 (WF_MIB) */
|
|
{ 0x820cc000, 0xa5000, 0x2000 }, /* WF_LMAC_TOP BN1 (WF_MUCOP) */
|
|
{ 0x820c4000, 0xa8000, 0x4000 }, /* WF_LMAC_TOP BN1 (WF_MUCOP) */
|
|
{ 0x820b0000, 0xae000, 0x1000 }, /* [APB2] WFSYS_ON */
|
|
{ 0x80020000, 0xb0000, 0x10000 }, /* WF_TOP_MISC_OFF */
|
|
{ 0x81020000, 0xc0000, 0x10000 }, /* WF_TOP_MISC_ON */
|
|
{ 0x7c020000, 0xd0000, 0x10000 }, /* CONN_INFRA, wfdma */
|
|
{ 0x7c060000, 0xe0000, 0x10000 }, /* CONN_INFRA, conn_host_csr_top */
|
|
{ 0x7c000000, 0xf0000, 0x10000 }, /* CONN_INFRA */
|
|
{ 0x0, 0x0, 0x0 }, /* imply end of search */
|
|
};
|
|
|
|
static u32 mt7996_reg_map_l1(struct mt7996_dev *dev, u32 addr)
|
|
{
|
|
u32 offset = FIELD_GET(MT_HIF_REMAP_L1_OFFSET, addr);
|
|
u32 base = FIELD_GET(MT_HIF_REMAP_L1_BASE, addr);
|
|
|
|
dev->reg_l1_backup = dev->bus_ops->rr(&dev->mt76, MT_HIF_REMAP_L1);
|
|
dev->bus_ops->rmw(&dev->mt76, MT_HIF_REMAP_L1,
|
|
MT_HIF_REMAP_L1_MASK,
|
|
FIELD_PREP(MT_HIF_REMAP_L1_MASK, base));
|
|
/* use read to push write */
|
|
dev->bus_ops->rr(&dev->mt76, MT_HIF_REMAP_L1);
|
|
|
|
return MT_HIF_REMAP_BASE_L1 + offset;
|
|
}
|
|
|
|
static u32 mt7996_reg_map_l2(struct mt7996_dev *dev, u32 addr)
|
|
{
|
|
u32 offset = FIELD_GET(MT_HIF_REMAP_L2_OFFSET, addr);
|
|
u32 base = FIELD_GET(MT_HIF_REMAP_L2_BASE, addr);
|
|
|
|
dev->reg_l2_backup = dev->bus_ops->rr(&dev->mt76, MT_HIF_REMAP_L2);
|
|
dev->bus_ops->rmw(&dev->mt76, MT_HIF_REMAP_L2,
|
|
MT_HIF_REMAP_L2_MASK,
|
|
FIELD_PREP(MT_HIF_REMAP_L2_MASK, base));
|
|
/* use read to push write */
|
|
dev->bus_ops->rr(&dev->mt76, MT_HIF_REMAP_L2);
|
|
|
|
return MT_HIF_REMAP_BASE_L2 + offset;
|
|
}
|
|
|
|
static void mt7996_reg_remap_restore(struct mt7996_dev *dev)
|
|
{
|
|
/* remap to ori status */
|
|
if (unlikely(dev->reg_l1_backup)) {
|
|
dev->bus_ops->wr(&dev->mt76, MT_HIF_REMAP_L1, dev->reg_l1_backup);
|
|
dev->reg_l1_backup = 0;
|
|
}
|
|
|
|
if (dev->reg_l2_backup) {
|
|
dev->bus_ops->wr(&dev->mt76, MT_HIF_REMAP_L2, dev->reg_l2_backup);
|
|
dev->reg_l2_backup = 0;
|
|
}
|
|
}
|
|
|
|
static u32 __mt7996_reg_addr(struct mt7996_dev *dev, u32 addr)
|
|
{
|
|
int i;
|
|
|
|
mt7996_reg_remap_restore(dev);
|
|
|
|
if (addr < 0x100000)
|
|
return addr;
|
|
|
|
for (i = 0; i < dev->reg.map_size; i++) {
|
|
u32 ofs;
|
|
|
|
if (addr < dev->reg.map[i].phys)
|
|
continue;
|
|
|
|
ofs = addr - dev->reg.map[i].phys;
|
|
if (ofs > dev->reg.map[i].size)
|
|
continue;
|
|
|
|
return dev->reg.map[i].mapped + ofs;
|
|
}
|
|
|
|
if ((addr >= MT_INFRA_BASE && addr < MT_WFSYS0_PHY_START) ||
|
|
(addr >= MT_WFSYS0_PHY_START && addr < MT_WFSYS1_PHY_START) ||
|
|
(addr >= MT_WFSYS1_PHY_START && addr <= MT_WFSYS1_PHY_END))
|
|
return mt7996_reg_map_l1(dev, addr);
|
|
|
|
if (dev_is_pci(dev->mt76.dev) &&
|
|
((addr >= MT_CBTOP1_PHY_START && addr <= MT_CBTOP1_PHY_END) ||
|
|
addr >= MT_CBTOP2_PHY_START))
|
|
return mt7996_reg_map_l1(dev, addr);
|
|
|
|
/* CONN_INFRA: covert to phyiscal addr and use layer 1 remap */
|
|
if (addr >= MT_INFRA_MCU_START && addr <= MT_INFRA_MCU_END) {
|
|
addr = addr - MT_INFRA_MCU_START + MT_INFRA_BASE;
|
|
return mt7996_reg_map_l1(dev, addr);
|
|
}
|
|
|
|
return mt7996_reg_map_l2(dev, addr);
|
|
}
|
|
|
|
static u32 mt7996_rr(struct mt76_dev *mdev, u32 offset)
|
|
{
|
|
struct mt7996_dev *dev = container_of(mdev, struct mt7996_dev, mt76);
|
|
|
|
return dev->bus_ops->rr(mdev, __mt7996_reg_addr(dev, offset));
|
|
}
|
|
|
|
static void mt7996_wr(struct mt76_dev *mdev, u32 offset, u32 val)
|
|
{
|
|
struct mt7996_dev *dev = container_of(mdev, struct mt7996_dev, mt76);
|
|
|
|
dev->bus_ops->wr(mdev, __mt7996_reg_addr(dev, offset), val);
|
|
}
|
|
|
|
static u32 mt7996_rmw(struct mt76_dev *mdev, u32 offset, u32 mask, u32 val)
|
|
{
|
|
struct mt7996_dev *dev = container_of(mdev, struct mt7996_dev, mt76);
|
|
|
|
return dev->bus_ops->rmw(mdev, __mt7996_reg_addr(dev, offset), mask, val);
|
|
}
|
|
|
|
static int mt7996_mmio_init(struct mt76_dev *mdev,
|
|
void __iomem *mem_base,
|
|
u32 device_id)
|
|
{
|
|
struct mt76_bus_ops *bus_ops;
|
|
struct mt7996_dev *dev;
|
|
|
|
dev = container_of(mdev, struct mt7996_dev, mt76);
|
|
mt76_mmio_init(&dev->mt76, mem_base);
|
|
|
|
switch (device_id) {
|
|
case 0x7990:
|
|
dev->reg.base = mt7996_reg_base;
|
|
dev->reg.map = mt7996_reg_map;
|
|
dev->reg.map_size = ARRAY_SIZE(mt7996_reg_map);
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
dev->bus_ops = dev->mt76.bus;
|
|
bus_ops = devm_kmemdup(dev->mt76.dev, dev->bus_ops, sizeof(*bus_ops),
|
|
GFP_KERNEL);
|
|
if (!bus_ops)
|
|
return -ENOMEM;
|
|
|
|
bus_ops->rr = mt7996_rr;
|
|
bus_ops->wr = mt7996_wr;
|
|
bus_ops->rmw = mt7996_rmw;
|
|
dev->mt76.bus = bus_ops;
|
|
|
|
mdev->rev = (device_id << 16) | (mt76_rr(dev, MT_HW_REV) & 0xff);
|
|
|
|
dev_dbg(mdev->dev, "ASIC revision: %04x\n", mdev->rev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
void mt7996_dual_hif_set_irq_mask(struct mt7996_dev *dev, bool write_reg,
|
|
u32 clear, u32 set)
|
|
{
|
|
struct mt76_dev *mdev = &dev->mt76;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&mdev->mmio.irq_lock, flags);
|
|
|
|
mdev->mmio.irqmask &= ~clear;
|
|
mdev->mmio.irqmask |= set;
|
|
|
|
if (write_reg) {
|
|
mt76_wr(dev, MT_INT_MASK_CSR, mdev->mmio.irqmask);
|
|
mt76_wr(dev, MT_INT1_MASK_CSR, mdev->mmio.irqmask);
|
|
}
|
|
|
|
spin_unlock_irqrestore(&mdev->mmio.irq_lock, flags);
|
|
}
|
|
|
|
static void mt7996_rx_poll_complete(struct mt76_dev *mdev,
|
|
enum mt76_rxq_id q)
|
|
{
|
|
struct mt7996_dev *dev = container_of(mdev, struct mt7996_dev, mt76);
|
|
|
|
mt7996_irq_enable(dev, MT_INT_RX(q));
|
|
}
|
|
|
|
/* TODO: support 2/4/6/8 MSI-X vectors */
|
|
static void mt7996_irq_tasklet(struct tasklet_struct *t)
|
|
{
|
|
struct mt7996_dev *dev = from_tasklet(dev, t, irq_tasklet);
|
|
u32 i, intr, mask, intr1;
|
|
|
|
mt76_wr(dev, MT_INT_MASK_CSR, 0);
|
|
if (dev->hif2)
|
|
mt76_wr(dev, MT_INT1_MASK_CSR, 0);
|
|
|
|
intr = mt76_rr(dev, MT_INT_SOURCE_CSR);
|
|
intr &= dev->mt76.mmio.irqmask;
|
|
mt76_wr(dev, MT_INT_SOURCE_CSR, intr);
|
|
|
|
if (dev->hif2) {
|
|
intr1 = mt76_rr(dev, MT_INT1_SOURCE_CSR);
|
|
intr1 &= dev->mt76.mmio.irqmask;
|
|
mt76_wr(dev, MT_INT1_SOURCE_CSR, intr1);
|
|
|
|
intr |= intr1;
|
|
}
|
|
|
|
trace_dev_irq(&dev->mt76, intr, dev->mt76.mmio.irqmask);
|
|
|
|
mask = intr & MT_INT_RX_DONE_ALL;
|
|
if (intr & MT_INT_TX_DONE_MCU)
|
|
mask |= MT_INT_TX_DONE_MCU;
|
|
mt7996_irq_disable(dev, mask);
|
|
|
|
if (intr & MT_INT_TX_DONE_MCU)
|
|
napi_schedule(&dev->mt76.tx_napi);
|
|
|
|
for (i = 0; i < __MT_RXQ_MAX; i++) {
|
|
if ((intr & MT_INT_RX(i)))
|
|
napi_schedule(&dev->mt76.napi[i]);
|
|
}
|
|
|
|
if (intr & MT_INT_MCU_CMD) {
|
|
u32 val = mt76_rr(dev, MT_MCU_CMD);
|
|
|
|
mt76_wr(dev, MT_MCU_CMD, val);
|
|
if (val & MT_MCU_CMD_ERROR_MASK) {
|
|
dev->reset_state = val;
|
|
ieee80211_queue_work(mt76_hw(dev), &dev->reset_work);
|
|
wake_up(&dev->reset_wait);
|
|
}
|
|
}
|
|
}
|
|
|
|
irqreturn_t mt7996_irq_handler(int irq, void *dev_instance)
|
|
{
|
|
struct mt7996_dev *dev = dev_instance;
|
|
|
|
mt76_wr(dev, MT_INT_MASK_CSR, 0);
|
|
if (dev->hif2)
|
|
mt76_wr(dev, MT_INT1_MASK_CSR, 0);
|
|
|
|
if (!test_bit(MT76_STATE_INITIALIZED, &dev->mphy.state))
|
|
return IRQ_NONE;
|
|
|
|
tasklet_schedule(&dev->irq_tasklet);
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
struct mt7996_dev *mt7996_mmio_probe(struct device *pdev,
|
|
void __iomem *mem_base, u32 device_id)
|
|
{
|
|
static const struct mt76_driver_ops drv_ops = {
|
|
/* txwi_size = txd size + txp size */
|
|
.txwi_size = MT_TXD_SIZE + sizeof(struct mt76_connac_fw_txp),
|
|
.drv_flags = MT_DRV_TXWI_NO_FREE |
|
|
MT_DRV_HW_MGMT_TXQ,
|
|
.survey_flags = SURVEY_INFO_TIME_TX |
|
|
SURVEY_INFO_TIME_RX |
|
|
SURVEY_INFO_TIME_BSS_RX,
|
|
.token_size = MT7996_TOKEN_SIZE,
|
|
.tx_prepare_skb = mt7996_tx_prepare_skb,
|
|
.tx_complete_skb = mt76_connac_tx_complete_skb,
|
|
.rx_skb = mt7996_queue_rx_skb,
|
|
.rx_check = mt7996_rx_check,
|
|
.rx_poll_complete = mt7996_rx_poll_complete,
|
|
.sta_ps = mt7996_sta_ps,
|
|
.sta_add = mt7996_mac_sta_add,
|
|
.sta_remove = mt7996_mac_sta_remove,
|
|
.update_survey = mt7996_update_channel,
|
|
};
|
|
struct mt7996_dev *dev;
|
|
struct mt76_dev *mdev;
|
|
int ret;
|
|
|
|
mdev = mt76_alloc_device(pdev, sizeof(*dev), &mt7996_ops, &drv_ops);
|
|
if (!mdev)
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
dev = container_of(mdev, struct mt7996_dev, mt76);
|
|
|
|
ret = mt7996_mmio_init(mdev, mem_base, device_id);
|
|
if (ret)
|
|
goto error;
|
|
|
|
tasklet_setup(&dev->irq_tasklet, mt7996_irq_tasklet);
|
|
|
|
mt76_wr(dev, MT_INT_MASK_CSR, 0);
|
|
|
|
return dev;
|
|
|
|
error:
|
|
mt76_free_device(&dev->mt76);
|
|
|
|
return ERR_PTR(ret);
|
|
}
|
|
|
|
static int __init mt7996_init(void)
|
|
{
|
|
int ret;
|
|
|
|
ret = pci_register_driver(&mt7996_hif_driver);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = pci_register_driver(&mt7996_pci_driver);
|
|
if (ret)
|
|
pci_unregister_driver(&mt7996_hif_driver);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void __exit mt7996_exit(void)
|
|
{
|
|
pci_unregister_driver(&mt7996_pci_driver);
|
|
pci_unregister_driver(&mt7996_hif_driver);
|
|
}
|
|
|
|
module_init(mt7996_init);
|
|
module_exit(mt7996_exit);
|
|
MODULE_LICENSE("Dual BSD/GPL");
|