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/*
* Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <linux/kernel.h>
#include <linux/firmware.h>
#include <linux/module.h>
#include <linux/pci.h>
#include "mt76x0.h"
#include "mcu.h"
#define MT7610E_FIRMWARE "mediatek/mt7610e.bin"
#define MT7650E_FIRMWARE "mediatek/mt7650e.bin"
#define MT_MCU_IVB_ADDR (MT_MCU_ILM_ADDR + 0x54000 - MT_MCU_IVB_SIZE)
static int mt76x0e_load_firmware(struct mt76x0_dev *dev)
{
bool is_combo_chip = mt76_chip(&dev->mt76) != 0x7610;
u32 val, ilm_len, dlm_len, offset = 0;
const struct mt76x02_fw_header *hdr;
const struct firmware *fw;
const char *firmware;
const u8 *fw_payload;
int len, err;
if (mt76x0_firmware_running(dev))
return 0;
if (is_combo_chip)
firmware = MT7650E_FIRMWARE;
else
firmware = MT7610E_FIRMWARE;
err = request_firmware(&fw, firmware, dev->mt76.dev);
if (err)
return err;
if (!fw || !fw->data || fw->size < sizeof(*hdr)) {
err = -EIO;
goto out;
}
hdr = (const struct mt76x02_fw_header *)fw->data;
len = sizeof(*hdr);
len += le32_to_cpu(hdr->ilm_len);
len += le32_to_cpu(hdr->dlm_len);
if (fw->size != len) {
err = -EIO;
goto out;
}
fw_payload = fw->data + sizeof(*hdr);
val = le16_to_cpu(hdr->fw_ver);
dev_info(dev->mt76.dev, "Firmware Version: %d.%d.%02d\n",
(val >> 12) & 0xf, (val >> 8) & 0xf, val & 0xf);
val = le16_to_cpu(hdr->fw_ver);
dev_dbg(dev->mt76.dev,
"Firmware Version: %d.%d.%02d Build: %x Build time: %.16s\n",
(val >> 12) & 0xf, (val >> 8) & 0xf, val & 0xf,
le16_to_cpu(hdr->build_ver), hdr->build_time);
if (is_combo_chip && !mt76_poll(dev, MT_MCU_SEMAPHORE_00, 1, 1, 600)) {
dev_err(dev->mt76.dev,
"Could not get hardware semaphore for loading fw\n");
err = -ETIMEDOUT;
goto out;
}
/* upload ILM. */
mt76_wr(dev, MT_MCU_PCIE_REMAP_BASE4, 0);
ilm_len = le32_to_cpu(hdr->ilm_len);
if (is_combo_chip) {
ilm_len -= MT_MCU_IVB_SIZE;
offset = MT_MCU_IVB_SIZE;
}
dev_dbg(dev->mt76.dev, "loading FW - ILM %u\n", ilm_len);
mt76_wr_copy(dev, MT_MCU_ILM_ADDR + offset, fw_payload + offset,
ilm_len);
/* upload IVB. */
if (is_combo_chip) {
dev_dbg(dev->mt76.dev, "loading FW - IVB %u\n",
MT_MCU_IVB_SIZE);
mt76_wr_copy(dev, MT_MCU_IVB_ADDR, fw_payload, MT_MCU_IVB_SIZE);
}
/* upload DLM. */
mt76_wr(dev, MT_MCU_PCIE_REMAP_BASE4, MT_MCU_DLM_OFFSET);
dlm_len = le32_to_cpu(hdr->dlm_len);
dev_dbg(dev->mt76.dev, "loading FW - DLM %u\n", dlm_len);
mt76_wr_copy(dev, MT_MCU_ILM_ADDR,
fw_payload + le32_to_cpu(hdr->ilm_len), dlm_len);
/* trigger firmware */
mt76_wr(dev, MT_MCU_PCIE_REMAP_BASE4, 0);
if (is_combo_chip)
mt76_wr(dev, MT_MCU_INT_LEVEL, 0x3);
else
mt76_wr(dev, MT_MCU_RESET_CTL, 0x300);
if (!mt76_poll_msec(dev, MT_MCU_COM_REG0, 1, 1, 1000)) {
dev_err(dev->mt76.dev, "Firmware failed to start\n");
err = -ETIMEDOUT;
goto out;
}
dev_dbg(dev->mt76.dev, "Firmware running!\n");
out:
if (is_combo_chip)
mt76_wr(dev, MT_MCU_SEMAPHORE_00, 0x1);
release_firmware(fw);
return err;
}
static int
mt76x0e_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
struct mt76x0_dev *dev;
int ret = -ENODEV;
ret = pcim_enable_device(pdev);
if (ret)
return ret;
ret = pcim_iomap_regions(pdev, BIT(0), pci_name(pdev));
if (ret)
return ret;
pci_set_master(pdev);
ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
if (ret)
return ret;
dev = mt76x0_alloc_device(&pdev->dev, NULL);
if (!dev)
return -ENOMEM;
mt76_mmio_init(&dev->mt76, pcim_iomap_table(pdev)[0]);
dev->mt76.rev = mt76_rr(dev, MT_ASIC_VERSION);
dev_info(dev->mt76.dev, "ASIC revision: %08x\n", dev->mt76.rev);
ret = mt76x0e_load_firmware(dev);
if (ret < 0)
goto error;
return 0;
error:
ieee80211_free_hw(mt76_hw(dev));
return ret;
}
static void
mt76x0e_remove(struct pci_dev *pdev)
{
struct mt76_dev *mdev = pci_get_drvdata(pdev);
mt76_unregister_device(mdev);
ieee80211_free_hw(mdev->hw);
}
static const struct pci_device_id mt76x0e_device_table[] = {
{ PCI_DEVICE(0x14c3, 0x7630) },
{ PCI_DEVICE(0x14c3, 0x7650) },
{ },
};
MODULE_DEVICE_TABLE(pci, mt76x0e_device_table);
MODULE_LICENSE("Dual BSD/GPL");
static struct pci_driver mt76x0e_driver = {
.name = KBUILD_MODNAME,
.id_table = mt76x0e_device_table,
.probe = mt76x0e_probe,
.remove = mt76x0e_remove,
};
module_pci_driver(mt76x0e_driver);
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