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// SPDX-License-Identifier: ISC
/* Copyright (C) 2020 MediaTek Inc. */
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/pci.h>
#include "mt7615.h"
#include "regs.h"
#include "mac.h"
#include "../trace.h"
const u32 mt7615e_reg_map[] = {
[MT_TOP_CFG_BASE] = 0x01000,
[MT_HW_BASE] = 0x01000,
[MT_PCIE_REMAP_2] = 0x02504,
[MT_ARB_BASE] = 0x20c00,
[MT_HIF_BASE] = 0x04000,
[MT_CSR_BASE] = 0x07000,
[MT_PLE_BASE] = 0x08000,
[MT_PSE_BASE] = 0x0c000,
[MT_CFG_BASE] = 0x20200,
[MT_AGG_BASE] = 0x20a00,
[MT_TMAC_BASE] = 0x21000,
[MT_RMAC_BASE] = 0x21200,
[MT_DMA_BASE] = 0x21800,
[MT_PF_BASE] = 0x22000,
[MT_WTBL_BASE_ON] = 0x23000,
[MT_WTBL_BASE_OFF] = 0x23400,
[MT_LPON_BASE] = 0x24200,
[MT_MIB_BASE] = 0x24800,
[MT_WTBL_BASE_ADDR] = 0x30000,
[MT_PCIE_REMAP_BASE2] = 0x80000,
[MT_TOP_MISC_BASE] = 0xc0000,
[MT_EFUSE_ADDR_BASE] = 0x81070000,
};
const u32 mt7663e_reg_map[] = {
[MT_TOP_CFG_BASE] = 0x01000,
[MT_HW_BASE] = 0x02000,
[MT_DMA_SHDL_BASE] = 0x06000,
[MT_PCIE_REMAP_2] = 0x0700c,
[MT_ARB_BASE] = 0x20c00,
[MT_HIF_BASE] = 0x04000,
[MT_CSR_BASE] = 0x07000,
[MT_PLE_BASE] = 0x08000,
[MT_PSE_BASE] = 0x0c000,
[MT_PP_BASE] = 0x0e000,
[MT_CFG_BASE] = 0x20000,
[MT_AGG_BASE] = 0x22000,
[MT_TMAC_BASE] = 0x24000,
[MT_RMAC_BASE] = 0x25000,
[MT_DMA_BASE] = 0x27000,
[MT_PF_BASE] = 0x28000,
[MT_WTBL_BASE_ON] = 0x29000,
[MT_WTBL_BASE_OFF] = 0x29800,
[MT_LPON_BASE] = 0x2b000,
[MT_MIB_BASE] = 0x2d000,
[MT_WTBL_BASE_ADDR] = 0x30000,
[MT_PCIE_REMAP_BASE2] = 0x90000,
[MT_TOP_MISC_BASE] = 0xc0000,
[MT_EFUSE_ADDR_BASE] = 0x78011000,
};
static void
mt7615_rx_poll_complete(struct mt76_dev *mdev, enum mt76_rxq_id q)
{
mt76_connac_irq_enable(mdev, MT_INT_RX_DONE(q));
}
static irqreturn_t mt7615_irq_handler(int irq, void *dev_instance)
{
struct mt7615_dev *dev = dev_instance;
mt76_wr(dev, MT_INT_MASK_CSR, 0);
if (!test_bit(MT76_STATE_INITIALIZED, &dev->mphy.state))
return IRQ_NONE;
tasklet_schedule(&dev->mt76.irq_tasklet);
return IRQ_HANDLED;
}
static void mt7615_irq_tasklet(struct tasklet_struct *t)
{
struct mt7615_dev *dev = from_tasklet(dev, t, mt76.irq_tasklet);
u32 intr, mask = 0, tx_mcu_mask = mt7615_tx_mcu_int_mask(dev);
u32 mcu_int;
mt76_wr(dev, MT_INT_MASK_CSR, 0);
intr = mt76_rr(dev, MT_INT_SOURCE_CSR);
intr &= dev->mt76.mmio.irqmask;
mt76_wr(dev, MT_INT_SOURCE_CSR, intr);
trace_dev_irq(&dev->mt76, intr, dev->mt76.mmio.irqmask);
mask |= intr & MT_INT_RX_DONE_ALL;
if (intr & tx_mcu_mask)
mask |= tx_mcu_mask;
mt76_set_irq_mask(&dev->mt76, MT_INT_MASK_CSR, mask, 0);
if (intr & tx_mcu_mask)
napi_schedule(&dev->mt76.tx_napi);
if (intr & MT_INT_RX_DONE(0))
napi_schedule(&dev->mt76.napi[0]);
if (intr & MT_INT_RX_DONE(1))
napi_schedule(&dev->mt76.napi[1]);
if (!(intr & (MT_INT_MCU_CMD | MT7663_INT_MCU_CMD)))
return;
if (is_mt7663(&dev->mt76)) {
mcu_int = mt76_rr(dev, MT_MCU2HOST_INT_STATUS);
mcu_int &= MT7663_MCU_CMD_ERROR_MASK;
mt76_wr(dev, MT_MCU2HOST_INT_STATUS, mcu_int);
} else {
mcu_int = mt76_rr(dev, MT_MCU_CMD);
mcu_int &= MT_MCU_CMD_ERROR_MASK;
}
if (!mcu_int)
return;
dev->reset_state = mcu_int;
queue_work(dev->mt76.wq, &dev->reset_work);
wake_up(&dev->reset_wait);
}
static u32 __mt7615_reg_addr(struct mt7615_dev *dev, u32 addr)
{
if (addr < 0x100000)
return addr;
return mt7615_reg_map(dev, addr);
}
static u32 mt7615_rr(struct mt76_dev *mdev, u32 offset)
{
struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76);
u32 addr = __mt7615_reg_addr(dev, offset);
return dev->bus_ops->rr(mdev, addr);
}
static void mt7615_wr(struct mt76_dev *mdev, u32 offset, u32 val)
{
struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76);
u32 addr = __mt7615_reg_addr(dev, offset);
dev->bus_ops->wr(mdev, addr, val);
}
static u32 mt7615_rmw(struct mt76_dev *mdev, u32 offset, u32 mask, u32 val)
{
struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76);
u32 addr = __mt7615_reg_addr(dev, offset);
return dev->bus_ops->rmw(mdev, addr, mask, val);
}
int mt7615_mmio_probe(struct device *pdev, void __iomem *mem_base,
int irq, const u32 *map)
{
static const struct mt76_driver_ops drv_ops = {
/* txwi_size = txd size + txp size */
.txwi_size = MT_TXD_SIZE + sizeof(struct mt76_connac_txp_common),
.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 = MT7615_TOKEN_SIZE,
.tx_prepare_skb = mt7615_tx_prepare_skb,
.tx_complete_skb = mt76_connac_tx_complete_skb,
.rx_check = mt7615_rx_check,
.rx_skb = mt7615_queue_rx_skb,
.rx_poll_complete = mt7615_rx_poll_complete,
.sta_add = mt7615_mac_sta_add,
.sta_remove = mt7615_mac_sta_remove,
.update_survey = mt7615_update_channel,
};
struct mt76_bus_ops *bus_ops;
struct ieee80211_ops *ops;
struct mt7615_dev *dev;
struct mt76_dev *mdev;
int ret;
ops = devm_kmemdup(pdev, &mt7615_ops, sizeof(mt7615_ops), GFP_KERNEL);
if (!ops)
return -ENOMEM;
mdev = mt76_alloc_device(pdev, sizeof(*dev), ops, &drv_ops);
if (!mdev)
return -ENOMEM;
dev = container_of(mdev, struct mt7615_dev, mt76);
mt76_mmio_init(&dev->mt76, mem_base);
tasklet_setup(&mdev->irq_tasklet, mt7615_irq_tasklet);
dev->reg_map = map;
dev->ops = ops;
mdev->rev = (mt76_rr(dev, MT_HW_CHIPID) << 16) |
(mt76_rr(dev, MT_HW_REV) & 0xff);
dev_dbg(mdev->dev, "ASIC revision: %04x\n", mdev->rev);
dev->bus_ops = dev->mt76.bus;
bus_ops = devm_kmemdup(dev->mt76.dev, dev->bus_ops, sizeof(*bus_ops),
GFP_KERNEL);
if (!bus_ops) {
ret = -ENOMEM;
goto err_free_dev;
}
bus_ops->rr = mt7615_rr;
bus_ops->wr = mt7615_wr;
bus_ops->rmw = mt7615_rmw;
dev->mt76.bus = bus_ops;
mt76_wr(dev, MT_INT_MASK_CSR, 0);
ret = devm_request_irq(mdev->dev, irq, mt7615_irq_handler,
IRQF_SHARED, KBUILD_MODNAME, dev);
if (ret)
goto err_free_dev;
if (is_mt7663(mdev))
mt76_wr(dev, MT_PCIE_IRQ_ENABLE, 1);
ret = mt7615_register_device(dev);
if (ret)
goto err_free_irq;
return 0;
err_free_irq:
devm_free_irq(pdev, irq, dev);
err_free_dev:
mt76_free_device(&dev->mt76);
return ret;
}
static int __init mt7615_init(void)
{
int ret;
ret = pci_register_driver(&mt7615_pci_driver);
if (ret)
return ret;
if (IS_ENABLED(CONFIG_MT7622_WMAC)) {
ret = platform_driver_register(&mt7622_wmac_driver);
if (ret)
pci_unregister_driver(&mt7615_pci_driver);
}
return ret;
}
static void __exit mt7615_exit(void)
{
if (IS_ENABLED(CONFIG_MT7622_WMAC))
platform_driver_unregister(&mt7622_wmac_driver);
pci_unregister_driver(&mt7615_pci_driver);
}
module_init(mt7615_init);
module_exit(mt7615_exit);
MODULE_DESCRIPTION("MediaTek MT7615E MMIO helpers");
MODULE_LICENSE("Dual BSD/GPL");
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