2 * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 #include <linux/kernel.h>
17 #include <linux/firmware.h>
18 #include <linux/module.h>
22 #include "../mt76x02_usb.h"
24 #define MCU_FW_URB_MAX_PAYLOAD 0x38f8
25 #define MCU_FW_URB_SIZE (MCU_FW_URB_MAX_PAYLOAD + 12)
28 mt76x0u_upload_firmware(struct mt76x02_dev *dev,
29 const struct mt76x02_fw_header *hdr)
31 u8 *fw_payload = (u8 *)(hdr + 1);
36 ivb = kmemdup(fw_payload, MT_MCU_IVB_SIZE, GFP_KERNEL);
40 ilm_len = le32_to_cpu(hdr->ilm_len) - MT_MCU_IVB_SIZE;
41 dev_dbg(dev->mt76.dev, "loading FW - ILM %u + IVB %u\n",
42 ilm_len, MT_MCU_IVB_SIZE);
43 err = mt76x02u_mcu_fw_send_data(dev, fw_payload + MT_MCU_IVB_SIZE,
44 ilm_len, MCU_FW_URB_MAX_PAYLOAD,
49 dlm_len = le32_to_cpu(hdr->dlm_len);
50 dev_dbg(dev->mt76.dev, "loading FW - DLM %u\n", dlm_len);
51 err = mt76x02u_mcu_fw_send_data(dev,
52 fw_payload + le32_to_cpu(hdr->ilm_len),
53 dlm_len, MCU_FW_URB_MAX_PAYLOAD,
58 err = mt76u_vendor_request(&dev->mt76, MT_VEND_DEV_MODE,
59 USB_DIR_OUT | USB_TYPE_VENDOR,
60 0x12, 0, ivb, MT_MCU_IVB_SIZE);
64 if (!mt76_poll_msec(dev, MT_MCU_COM_REG0, 1, 1, 1000)) {
65 dev_err(dev->mt76.dev, "Firmware failed to start\n");
70 dev_dbg(dev->mt76.dev, "Firmware running!\n");
78 static int mt76x0_get_firmware(struct mt76x02_dev *dev,
79 const struct firmware **fw)
83 /* try to load mt7610e fw if available
84 * otherwise fall back to mt7610u one
86 err = firmware_reject_nowarn(fw, MT7610E_FIRMWARE, dev->mt76.dev);
88 dev_info(dev->mt76.dev, "%s not found, switching to %s",
89 MT7610E_FIRMWARE, MT7610U_FIRMWARE);
90 return reject_firmware(fw, MT7610U_FIRMWARE,
96 static int mt76x0u_load_firmware(struct mt76x02_dev *dev)
98 const struct firmware *fw;
99 const struct mt76x02_fw_header *hdr;
103 mt76_wr(dev, MT_USB_DMA_CFG, (MT_USB_DMA_CFG_RX_BULK_EN |
104 MT_USB_DMA_CFG_TX_BULK_EN));
106 if (mt76x0_firmware_running(dev))
109 ret = mt76x0_get_firmware(dev, &fw);
113 if (!fw || !fw->data || fw->size < sizeof(*hdr))
116 hdr = (const struct mt76x02_fw_header *)fw->data;
118 if (le32_to_cpu(hdr->ilm_len) <= MT_MCU_IVB_SIZE)
122 len += le32_to_cpu(hdr->ilm_len);
123 len += le32_to_cpu(hdr->dlm_len);
128 val = le16_to_cpu(hdr->fw_ver);
129 dev_dbg(dev->mt76.dev,
130 "Firmware Version: %d.%d.%02d Build: %x Build time: %.16s\n",
131 (val >> 12) & 0xf, (val >> 8) & 0xf, val & 0xf,
132 le16_to_cpu(hdr->build_ver), hdr->build_time);
134 len = le32_to_cpu(hdr->ilm_len);
136 mt76_wr(dev, 0x1004, 0x2c);
138 mt76_set(dev, MT_USB_DMA_CFG,
139 (MT_USB_DMA_CFG_RX_BULK_EN | MT_USB_DMA_CFG_TX_BULK_EN) |
140 FIELD_PREP(MT_USB_DMA_CFG_RX_BULK_AGG_TOUT, 0x20));
141 mt76x02u_mcu_fw_reset(dev);
142 usleep_range(5000, 6000);
144 mt76_wr(dev, MT_FCE_PSE_CTRL, 1);
146 /* FCE tx_fs_base_ptr */
147 mt76_wr(dev, MT_TX_CPU_FROM_FCE_BASE_PTR, 0x400230);
148 /* FCE tx_fs_max_cnt */
149 mt76_wr(dev, MT_TX_CPU_FROM_FCE_MAX_COUNT, 1);
150 /* FCE pdma enable */
151 mt76_wr(dev, MT_FCE_PDMA_GLOBAL_CONF, 0x44);
153 mt76_wr(dev, MT_FCE_SKIP_FS, 3);
155 val = mt76_rr(dev, MT_USB_DMA_CFG);
156 val |= MT_USB_DMA_CFG_UDMA_TX_WL_DROP;
157 mt76_wr(dev, MT_USB_DMA_CFG, val);
158 val &= ~MT_USB_DMA_CFG_UDMA_TX_WL_DROP;
159 mt76_wr(dev, MT_USB_DMA_CFG, val);
161 ret = mt76x0u_upload_firmware(dev, hdr);
162 release_firmware(fw);
164 mt76_wr(dev, MT_FCE_PSE_CTRL, 1);
169 dev_err(dev->mt76.dev, "Invalid firmware image\n");
170 release_firmware(fw);
174 int mt76x0u_mcu_init(struct mt76x02_dev *dev)
178 ret = mt76x0u_load_firmware(dev);
182 set_bit(MT76_STATE_MCU_RUNNING, &dev->mt76.state);