// 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 "mt7915.h"
+#include "mac.h"
+#include "../trace.h"
static u32 mt7915_reg_map_l1(struct mt7915_dev *dev, u32 addr)
{
return dev->bus_ops->rmw(mdev, addr, mask, val);
}
-int mt7915_mmio_init(struct mt76_dev *mdev, void __iomem *mem_base, int irq)
+static int mt7915_mmio_init(struct mt76_dev *mdev,
+ void __iomem *mem_base,
+ u32 device_id)
{
struct mt76_bus_ops *bus_ops;
struct mt7915_dev *dev;
(mt76_rr(dev, MT_HW_REV) & 0xff);
dev_dbg(mdev->dev, "ASIC revision: %04x\n", mdev->rev);
+ return 0;
+}
+
+void mt7915_dual_hif_set_irq_mask(struct mt7915_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 mt7915_rx_poll_complete(struct mt76_dev *mdev,
+ enum mt76_rxq_id q)
+{
+ struct mt7915_dev *dev = container_of(mdev, struct mt7915_dev, mt76);
+ static const u32 rx_irq_mask[] = {
+ [MT_RXQ_MAIN] = MT_INT_RX_DONE_DATA0,
+ [MT_RXQ_EXT] = MT_INT_RX_DONE_DATA1,
+ [MT_RXQ_MCU] = MT_INT_RX_DONE_WM,
+ [MT_RXQ_MCU_WA] = MT_INT_RX_DONE_WA,
+ [MT_RXQ_EXT_WA] = MT_INT_RX_DONE_WA_EXT,
+ };
+
+ mt7915_irq_enable(dev, rx_irq_mask[q]);
+}
+
+/* TODO: support 2/4/6/8 MSI-X vectors */
+static void mt7915_irq_tasklet(struct tasklet_struct *t)
+{
+ struct mt7915_dev *dev = from_tasklet(dev, t, irq_tasklet);
+ u32 intr, intr1, mask;
+
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;
+
+ mt7915_irq_disable(dev, mask);
+
+ if (intr & MT_INT_TX_DONE_MCU)
+ napi_schedule(&dev->mt76.tx_napi);
+
+ if (intr & MT_INT_RX_DONE_DATA0)
+ napi_schedule(&dev->mt76.napi[MT_RXQ_MAIN]);
+
+ if (intr & MT_INT_RX_DONE_DATA1)
+ napi_schedule(&dev->mt76.napi[MT_RXQ_EXT]);
+
+ if (intr & MT_INT_RX_DONE_WM)
+ napi_schedule(&dev->mt76.napi[MT_RXQ_MCU]);
+
+ if (intr & MT_INT_RX_DONE_WA)
+ napi_schedule(&dev->mt76.napi[MT_RXQ_MCU_WA]);
+
+ if (intr & MT_INT_RX_DONE_WA_EXT)
+ napi_schedule(&dev->mt76.napi[MT_RXQ_EXT_WA]);
+
+ 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);
+ }
+ }
+}
+
+static irqreturn_t mt7915_irq_handler(int irq, void *dev_instance)
+{
+ struct mt7915_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;
+}
+
+int mt7915_mmio_probe(struct device *pdev,
+ void __iomem *mem_base,
+ u32 device_id,
+ int irq, struct mt7915_hif *hif2)
+{
+ static const struct mt76_driver_ops drv_ops = {
+ /* txwi_size = txd size + txp size */
+ .txwi_size = MT_TXD_SIZE + sizeof(struct mt7915_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 = MT7915_TOKEN_SIZE,
+ .tx_prepare_skb = mt7915_tx_prepare_skb,
+ .tx_complete_skb = mt7915_tx_complete_skb,
+ .rx_skb = mt7915_queue_rx_skb,
+ .rx_check = mt7915_rx_check,
+ .rx_poll_complete = mt7915_rx_poll_complete,
+ .sta_ps = mt7915_sta_ps,
+ .sta_add = mt7915_mac_sta_add,
+ .sta_remove = mt7915_mac_sta_remove,
+ .update_survey = mt7915_update_channel,
+ };
+ struct ieee80211_ops *ops;
+ struct mt7915_dev *dev;
+ struct mt76_dev *mdev;
+ int ret;
+
+ ops = devm_kmemdup(pdev, &mt7915_ops, sizeof(mt7915_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 mt7915_dev, mt76);
+
+ ret = mt7915_mmio_init(mdev, mem_base, device_id);
+ if (ret)
+ goto error;
+
+ tasklet_setup(&dev->irq_tasklet, mt7915_irq_tasklet);
+
+ mt76_wr(dev, MT_INT_MASK_CSR, 0);
+ /* master switch of PCIe tnterrupt enable */
+ if (dev_is_pci(pdev))
+ mt76_wr(dev, MT_PCIE_MAC_INT_ENABLE, 0xff);
+
+ ret = devm_request_irq(mdev->dev, irq, mt7915_irq_handler,
+ IRQF_SHARED, KBUILD_MODNAME, dev);
+ if (ret)
+ goto error;
+
+ if (hif2) {
+ dev->hif2 = hif2;
+
+ mt76_wr(dev, MT_INT1_MASK_CSR, 0);
+ /* master switch of PCIe tnterrupt enable */
+ if (dev_is_pci(pdev))
+ mt76_wr(dev, MT_PCIE1_MAC_INT_ENABLE, 0xff);
+
+ ret = devm_request_irq(mdev->dev, dev->hif2->irq,
+ mt7915_irq_handler, IRQF_SHARED,
+ KBUILD_MODNAME "-hif", dev);
+ if (ret) {
+ put_device(dev->hif2->dev);
+ goto free_irq;
+ }
+ }
+
+ ret = mt7915_register_device(dev);
+ if (ret)
+ goto free_hif2_irq;
return 0;
+
+free_hif2_irq:
+ if (dev->hif2)
+ devm_free_irq(mdev->dev, dev->hif2->irq, dev);
+free_irq:
+ devm_free_irq(mdev->dev, irq, dev);
+error:
+ mt76_free_device(&dev->mt76);
+
+ return ret;
}
+
+static int __init mt7915_init(void)
+{
+ int ret;
+
+ ret = pci_register_driver(&mt7915_hif_driver);
+ if (ret)
+ return ret;
+
+ ret = pci_register_driver(&mt7915_pci_driver);
+ if (ret)
+ pci_unregister_driver(&mt7915_hif_driver);
+
+ return ret;
+}
+
+static void __exit mt7915_exit(void)
+{
+ pci_unregister_driver(&mt7915_pci_driver);
+ pci_unregister_driver(&mt7915_hif_driver);
+}
+
+module_init(mt7915_init);
+module_exit(mt7915_exit);
+MODULE_LICENSE("Dual BSD/GPL");
{ },
};
-void mt7915_dual_hif_set_irq_mask(struct mt7915_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 struct mt7915_hif *
-mt7915_pci_get_hif2(struct mt7915_dev *dev)
+static struct mt7915_hif *mt7915_pci_get_hif2(u32 idx)
{
struct mt7915_hif *hif;
u32 val;
list_for_each_entry(hif, &hif_list, list) {
val = readl(hif->regs + MT_PCIE_RECOG_ID);
val &= MT_PCIE_RECOG_ID_MASK;
- if (val != dev->hif_idx)
+ if (val != idx)
continue;
get_device(hif->dev);
put_device(hif->dev);
}
-static void
-mt7915_rx_poll_complete(struct mt76_dev *mdev, enum mt76_rxq_id q)
-{
- struct mt7915_dev *dev = container_of(mdev, struct mt7915_dev, mt76);
- static const u32 rx_irq_mask[] = {
- [MT_RXQ_MAIN] = MT_INT_RX_DONE_DATA0,
- [MT_RXQ_EXT] = MT_INT_RX_DONE_DATA1,
- [MT_RXQ_MCU] = MT_INT_RX_DONE_WM,
- [MT_RXQ_MCU_WA] = MT_INT_RX_DONE_WA,
- [MT_RXQ_EXT_WA] = MT_INT_RX_DONE_WA_EXT,
- };
-
- mt7915_irq_enable(dev, rx_irq_mask[q]);
-}
-
-/* TODO: support 2/4/6/8 MSI-X vectors */
-static void mt7915_irq_tasklet(struct tasklet_struct *t)
-{
- struct mt7915_dev *dev = from_tasklet(dev, t, irq_tasklet);
- u32 intr, intr1, mask;
-
- 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;
-
- mt7915_irq_disable(dev, mask);
-
- if (intr & MT_INT_TX_DONE_MCU)
- napi_schedule(&dev->mt76.tx_napi);
-
- if (intr & MT_INT_RX_DONE_DATA0)
- napi_schedule(&dev->mt76.napi[MT_RXQ_MAIN]);
-
- if (intr & MT_INT_RX_DONE_DATA1)
- napi_schedule(&dev->mt76.napi[MT_RXQ_EXT]);
-
- if (intr & MT_INT_RX_DONE_WM)
- napi_schedule(&dev->mt76.napi[MT_RXQ_MCU]);
-
- if (intr & MT_INT_RX_DONE_WA)
- napi_schedule(&dev->mt76.napi[MT_RXQ_MCU_WA]);
-
- if (intr & MT_INT_RX_DONE_WA_EXT)
- napi_schedule(&dev->mt76.napi[MT_RXQ_EXT_WA]);
-
- 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);
- }
- }
-}
-
-static irqreturn_t mt7915_irq_handler(int irq, void *dev_instance)
-{
- struct mt7915_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;
-}
-
-static void mt7915_pci_init_hif2(struct mt7915_dev *dev)
+static struct mt7915_hif *mt7915_pci_init_hif2(struct pci_dev *pdev)
{
- struct mt7915_hif *hif;
-
- dev->hif_idx = ++hif_idx;
+ hif_idx++;
if (!pci_get_device(PCI_VENDOR_ID_MEDIATEK, 0x7916, NULL))
- return;
-
- mt76_wr(dev, MT_PCIE_RECOG_ID, dev->hif_idx | MT_PCIE_RECOG_ID_SEM);
-
- hif = mt7915_pci_get_hif2(dev);
- if (!hif)
- return;
+ return NULL;
- dev->hif2 = hif;
+ writel(hif_idx | MT_PCIE_RECOG_ID_SEM,
+ pcim_iomap_table(pdev)[0] + MT_PCIE_RECOG_ID);
- mt76_wr(dev, MT_INT1_MASK_CSR, 0);
-
- if (devm_request_irq(dev->mt76.dev, hif->irq, mt7915_irq_handler,
- IRQF_SHARED, KBUILD_MODNAME "-hif", dev)) {
- mt7915_put_hif2(hif);
- hif = NULL;
- }
-
- /* master switch of PCIe tnterrupt enable */
- mt76_wr(dev, MT_PCIE1_MAC_INT_ENABLE, 0xff);
+ return mt7915_pci_get_hif2(hif_idx);
}
static int mt7915_pci_hif2_probe(struct pci_dev *pdev)
static int mt7915_pci_probe(struct pci_dev *pdev,
const struct pci_device_id *id)
{
- static const struct mt76_driver_ops drv_ops = {
- /* txwi_size = txd size + txp size */
- .txwi_size = MT_TXD_SIZE + sizeof(struct mt7915_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 = MT7915_TOKEN_SIZE,
- .tx_prepare_skb = mt7915_tx_prepare_skb,
- .tx_complete_skb = mt7915_tx_complete_skb,
- .rx_skb = mt7915_queue_rx_skb,
- .rx_check = mt7915_rx_check,
- .rx_poll_complete = mt7915_rx_poll_complete,
- .sta_ps = mt7915_sta_ps,
- .sta_add = mt7915_mac_sta_add,
- .sta_remove = mt7915_mac_sta_remove,
- .update_survey = mt7915_update_channel,
- };
- struct mt7915_dev *dev;
- struct mt76_dev *mdev;
+ struct mt7915_hif *hif2;
int ret;
ret = pcim_enable_device(pdev);
if (id->device == 0x7916)
return mt7915_pci_hif2_probe(pdev);
- mdev = mt76_alloc_device(&pdev->dev, sizeof(*dev), &mt7915_ops,
- &drv_ops);
- if (!mdev)
- return -ENOMEM;
-
- dev = container_of(mdev, struct mt7915_dev, mt76);
-
ret = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_ALL_TYPES);
if (ret < 0)
- goto free;
-
- ret = mt7915_mmio_init(mdev, pcim_iomap_table(pdev)[0], pdev->irq);
- if (ret)
- goto error;
-
- tasklet_setup(&dev->irq_tasklet, mt7915_irq_tasklet);
-
- mt76_wr(dev, MT_INT_MASK_CSR, 0);
-
- /* master switch of PCIe tnterrupt enable */
- mt76_wr(dev, MT_PCIE_MAC_INT_ENABLE, 0xff);
-
- ret = devm_request_irq(mdev->dev, pdev->irq, mt7915_irq_handler,
- IRQF_SHARED, KBUILD_MODNAME, dev);
- if (ret)
- goto error;
+ return ret;
- mt7915_pci_init_hif2(dev);
+ hif2 = mt7915_pci_init_hif2(pdev);
- ret = mt7915_register_device(dev);
- if (ret)
- goto free_irq;
+ ret = mt7915_mmio_probe(&pdev->dev, pcim_iomap_table(pdev)[0],
+ id->device, pdev->irq, hif2);
+ if (!ret)
+ return 0;
- return 0;
-free_irq:
- devm_free_irq(mdev->dev, pdev->irq, dev);
-error:
pci_free_irq_vectors(pdev);
-free:
- mt76_free_device(&dev->mt76);
return ret;
}
mt7915_unregister_device(dev);
}
-static struct pci_driver mt7915_hif_driver = {
+struct pci_driver mt7915_hif_driver = {
.name = KBUILD_MODNAME "_hif",
.id_table = mt7915_hif_device_table,
.probe = mt7915_pci_probe,
.remove = mt7915_hif_remove,
};
-static struct pci_driver mt7915_pci_driver = {
+struct pci_driver mt7915_pci_driver = {
.name = KBUILD_MODNAME,
.id_table = mt7915_pci_device_table,
.probe = mt7915_pci_probe,
.remove = mt7915_pci_remove,
};
-static int __init mt7915_init(void)
-{
- int ret;
-
- ret = pci_register_driver(&mt7915_hif_driver);
- if (ret)
- return ret;
-
- ret = pci_register_driver(&mt7915_pci_driver);
- if (ret)
- pci_unregister_driver(&mt7915_hif_driver);
-
- return ret;
-}
-
-static void __exit mt7915_exit(void)
-{
- pci_unregister_driver(&mt7915_pci_driver);
- pci_unregister_driver(&mt7915_hif_driver);
-}
-
-module_init(mt7915_init);
-module_exit(mt7915_exit);
-
MODULE_DEVICE_TABLE(pci, mt7915_pci_device_table);
MODULE_DEVICE_TABLE(pci, mt7915_hif_device_table);
MODULE_FIRMWARE(MT7915_FIRMWARE_WA);
MODULE_FIRMWARE(MT7915_FIRMWARE_WM);
MODULE_FIRMWARE(MT7915_ROM_PATCH);
-MODULE_LICENSE("Dual BSD/GPL");
projects / platform / kernel / linux-starfive.git / commitdiff