mirror of
https://github.com/outbackdingo/mt76.git
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mt76x0: usb: move mcu code in usb_mcu.c
Move usb mcu code in a dedicated source file in order to remove usb dependency from generic source files and improve code maintainability Signed-off-by: Lorenzo Bianconi <[email protected]>
This commit is contained in:
Lorenzo Bianconi
committed by
Felix Fietkau
Felix Fietkau
parent
e1a21793e1
commit
886f6fc995
@@ -0,0 +1,176 @@
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/*
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* Copyright (C) 2018 Lorenzo Bianconi <[email protected]>
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <linux/kernel.h>
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#include <linux/firmware.h>
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#include "mt76x0.h"
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#include "mcu.h"
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#include "../mt76x02_usb.h"
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#define MCU_FW_URB_MAX_PAYLOAD 0x38f8
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#define MCU_FW_URB_SIZE (MCU_FW_URB_MAX_PAYLOAD + 12)
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#define MT7610U_FIRMWARE "mediatek/mt7610u.bin"
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static int
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mt76x0u_upload_firmware(struct mt76x0_dev *dev,
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const struct mt76x02_fw_header *hdr)
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{
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u8 *fw_payload = (u8 *)(hdr + 1);
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u32 ilm_len, dlm_len;
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void *ivb;
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int err;
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ivb = kmemdup(fw_payload, MT_MCU_IVB_SIZE, GFP_KERNEL);
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if (!ivb)
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return -ENOMEM;
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ilm_len = le32_to_cpu(hdr->ilm_len) - MT_MCU_IVB_SIZE;
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dev_dbg(dev->mt76.dev, "loading FW - ILM %u + IVB %u\n",
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ilm_len, MT_MCU_IVB_SIZE);
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err = mt76x02u_mcu_fw_send_data(&dev->mt76,
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fw_payload + MT_MCU_IVB_SIZE,
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ilm_len, MCU_FW_URB_MAX_PAYLOAD,
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MT_MCU_IVB_SIZE);
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if (err)
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goto out;
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dlm_len = le32_to_cpu(hdr->dlm_len);
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dev_dbg(dev->mt76.dev, "loading FW - DLM %u\n", dlm_len);
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err = mt76x02u_mcu_fw_send_data(&dev->mt76,
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fw_payload + le32_to_cpu(hdr->ilm_len),
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dlm_len, MCU_FW_URB_MAX_PAYLOAD,
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MT_MCU_DLM_OFFSET);
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if (err)
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goto out;
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err = mt76u_vendor_request(&dev->mt76, MT_VEND_DEV_MODE,
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USB_DIR_OUT | USB_TYPE_VENDOR,
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0x12, 0, ivb, MT_MCU_IVB_SIZE);
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if (err < 0)
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goto out;
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if (!mt76_poll_msec(dev, MT_MCU_COM_REG0, 1, 1, 1000)) {
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dev_err(dev->mt76.dev, "Firmware failed to start\n");
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err = -ETIMEDOUT;
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goto out;
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}
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dev_dbg(dev->mt76.dev, "Firmware running!\n");
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out:
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kfree(ivb);
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return err;
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}
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static int mt76x0u_load_firmware(struct mt76x0_dev *dev)
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{
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const struct firmware *fw;
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const struct mt76x02_fw_header *hdr;
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int len, ret;
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u32 val;
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mt76_wr(dev, MT_USB_DMA_CFG, (MT_USB_DMA_CFG_RX_BULK_EN |
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MT_USB_DMA_CFG_TX_BULK_EN));
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if (mt76x0_firmware_running(dev))
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return 0;
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ret = request_firmware(&fw, MT7610U_FIRMWARE, dev->mt76.dev);
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if (ret)
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return ret;
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if (!fw || !fw->data || fw->size < sizeof(*hdr))
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goto err_inv_fw;
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hdr = (const struct mt76x02_fw_header *)fw->data;
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if (le32_to_cpu(hdr->ilm_len) <= MT_MCU_IVB_SIZE)
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goto err_inv_fw;
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len = sizeof(*hdr);
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len += le32_to_cpu(hdr->ilm_len);
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len += le32_to_cpu(hdr->dlm_len);
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if (fw->size != len)
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goto err_inv_fw;
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val = le16_to_cpu(hdr->fw_ver);
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dev_dbg(dev->mt76.dev,
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"Firmware Version: %d.%d.%02d Build: %x Build time: %.16s\n",
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(val >> 12) & 0xf, (val >> 8) & 0xf, val & 0xf,
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le16_to_cpu(hdr->build_ver), hdr->build_time);
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len = le32_to_cpu(hdr->ilm_len);
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mt76_wr(dev, 0x1004, 0x2c);
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mt76_set(dev, MT_USB_DMA_CFG,
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(MT_USB_DMA_CFG_RX_BULK_EN | MT_USB_DMA_CFG_TX_BULK_EN) |
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FIELD_PREP(MT_USB_DMA_CFG_RX_BULK_AGG_TOUT, 0x20));
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mt76x02u_mcu_fw_reset(&dev->mt76);
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usleep_range(5000, 6000);
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/*
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mt76x0_rmw(dev, MT_PBF_CFG, 0, (MT_PBF_CFG_TX0Q_EN |
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MT_PBF_CFG_TX1Q_EN |
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MT_PBF_CFG_TX2Q_EN |
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MT_PBF_CFG_TX3Q_EN));
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*/
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mt76_wr(dev, MT_FCE_PSE_CTRL, 1);
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/* FCE tx_fs_base_ptr */
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mt76_wr(dev, MT_TX_CPU_FROM_FCE_BASE_PTR, 0x400230);
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/* FCE tx_fs_max_cnt */
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mt76_wr(dev, MT_TX_CPU_FROM_FCE_MAX_COUNT, 1);
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/* FCE pdma enable */
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mt76_wr(dev, MT_FCE_PDMA_GLOBAL_CONF, 0x44);
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/* FCE skip_fs_en */
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mt76_wr(dev, MT_FCE_SKIP_FS, 3);
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val = mt76_rr(dev, MT_USB_DMA_CFG);
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val |= MT_USB_DMA_CFG_UDMA_TX_WL_DROP;
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mt76_wr(dev, MT_USB_DMA_CFG, val);
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val &= ~MT_USB_DMA_CFG_UDMA_TX_WL_DROP;
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mt76_wr(dev, MT_USB_DMA_CFG, val);
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ret = mt76x0u_upload_firmware(dev, hdr);
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release_firmware(fw);
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mt76_wr(dev, MT_FCE_PSE_CTRL, 1);
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return ret;
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err_inv_fw:
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dev_err(dev->mt76.dev, "Invalid firmware image\n");
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release_firmware(fw);
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return -ENOENT;
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}
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int mt76x0u_mcu_init(struct mt76x0_dev *dev)
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{
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int ret;
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ret = mt76x0u_load_firmware(dev);
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if (ret < 0)
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return ret;
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set_bit(MT76_STATE_MCU_RUNNING, &dev->mt76.state);
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return 0;
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}
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MODULE_FIRMWARE(MT7610U_FIRMWARE);
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