[][MAC80211][Change MT76 Makefile and add bersa support]
[Description]
Change MT76 Makefile and add bersa support
[Release-log]
N/A
Change-Id: Iecb0e9968c8e212a6ab92698c84d2e3a56dbd65b
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/5809192
diff --git a/autobuild_mac80211_release/mt7986_bersa_mac80211/package/kernel/mt76/src/mt76x02_usb_mcu.c b/autobuild_mac80211_release/mt7986_bersa_mac80211/package/kernel/mt76/src/mt76x02_usb_mcu.c
new file mode 100644
index 0000000..2953df7
--- /dev/null
+++ b/autobuild_mac80211_release/mt7986_bersa_mac80211/package/kernel/mt76/src/mt76x02_usb_mcu.c
@@ -0,0 +1,310 @@
+// SPDX-License-Identifier: ISC
+/*
+ * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
+ */
+
+#include <linux/module.h>
+#include <linux/firmware.h>
+
+#include "mt76x02.h"
+#include "mt76x02_mcu.h"
+#include "mt76x02_usb.h"
+
+#define MT_CMD_HDR_LEN 4
+
+#define MT_FCE_DMA_ADDR 0x0230
+#define MT_FCE_DMA_LEN 0x0234
+
+#define MT_TX_CPU_FROM_FCE_CPU_DESC_IDX 0x09a8
+
+static void
+mt76x02u_multiple_mcu_reads(struct mt76_dev *dev, u8 *data, int len)
+{
+ struct mt76_usb *usb = &dev->usb;
+ u32 reg, val;
+ int i;
+
+ if (usb->mcu.burst) {
+ WARN_ON_ONCE(len / 4 != usb->mcu.rp_len);
+
+ reg = usb->mcu.rp[0].reg - usb->mcu.base;
+ for (i = 0; i < usb->mcu.rp_len; i++) {
+ val = get_unaligned_le32(data + 4 * i);
+ usb->mcu.rp[i].reg = reg++;
+ usb->mcu.rp[i].value = val;
+ }
+ } else {
+ WARN_ON_ONCE(len / 8 != usb->mcu.rp_len);
+
+ for (i = 0; i < usb->mcu.rp_len; i++) {
+ reg = get_unaligned_le32(data + 8 * i) -
+ usb->mcu.base;
+ val = get_unaligned_le32(data + 8 * i + 4);
+
+ WARN_ON_ONCE(usb->mcu.rp[i].reg != reg);
+ usb->mcu.rp[i].value = val;
+ }
+ }
+}
+
+static int mt76x02u_mcu_wait_resp(struct mt76_dev *dev, u8 seq)
+{
+ struct mt76_usb *usb = &dev->usb;
+ u8 *data = usb->mcu.data;
+ int i, len, ret;
+ u32 rxfce;
+
+ for (i = 0; i < 5; i++) {
+ ret = mt76u_bulk_msg(dev, data, MCU_RESP_URB_SIZE, &len,
+ 300, MT_EP_IN_CMD_RESP);
+ if (ret == -ETIMEDOUT)
+ continue;
+ if (ret)
+ goto out;
+
+ if (usb->mcu.rp)
+ mt76x02u_multiple_mcu_reads(dev, data + 4, len - 8);
+
+ rxfce = get_unaligned_le32(data);
+ if (seq == FIELD_GET(MT_RX_FCE_INFO_CMD_SEQ, rxfce) &&
+ FIELD_GET(MT_RX_FCE_INFO_EVT_TYPE, rxfce) == EVT_CMD_DONE)
+ return 0;
+
+ dev_err(dev->dev, "error: MCU resp evt:%lx seq:%hhx-%lx\n",
+ FIELD_GET(MT_RX_FCE_INFO_EVT_TYPE, rxfce),
+ seq, FIELD_GET(MT_RX_FCE_INFO_CMD_SEQ, rxfce));
+ }
+out:
+ dev_err(dev->dev, "error: %s failed with %d\n", __func__, ret);
+ return ret;
+}
+
+static int
+__mt76x02u_mcu_send_msg(struct mt76_dev *dev, struct sk_buff *skb,
+ int cmd, bool wait_resp)
+{
+ u8 seq = 0;
+ u32 info;
+ int ret;
+
+ if (test_bit(MT76_REMOVED, &dev->phy.state)) {
+ ret = 0;
+ goto out;
+ }
+
+ if (wait_resp) {
+ seq = ++dev->mcu.msg_seq & 0xf;
+ if (!seq)
+ seq = ++dev->mcu.msg_seq & 0xf;
+ }
+
+ info = FIELD_PREP(MT_MCU_MSG_CMD_SEQ, seq) |
+ FIELD_PREP(MT_MCU_MSG_CMD_TYPE, cmd) |
+ MT_MCU_MSG_TYPE_CMD;
+ ret = mt76x02u_skb_dma_info(skb, CPU_TX_PORT, info);
+ if (ret)
+ return ret;
+
+ ret = mt76u_bulk_msg(dev, skb->data, skb->len, NULL, 500,
+ MT_EP_OUT_INBAND_CMD);
+ if (ret)
+ return ret;
+
+ if (wait_resp)
+ ret = mt76x02u_mcu_wait_resp(dev, seq);
+
+out:
+ consume_skb(skb);
+
+ return ret;
+}
+
+static int
+mt76x02u_mcu_send_msg(struct mt76_dev *dev, int cmd, const void *data,
+ int len, bool wait_resp)
+{
+ struct sk_buff *skb;
+ int err;
+
+ skb = mt76_mcu_msg_alloc(dev, data, len);
+ if (!skb)
+ return -ENOMEM;
+
+ mutex_lock(&dev->mcu.mutex);
+ err = __mt76x02u_mcu_send_msg(dev, skb, cmd, wait_resp);
+ mutex_unlock(&dev->mcu.mutex);
+
+ return err;
+}
+
+static inline void skb_put_le32(struct sk_buff *skb, u32 val)
+{
+ put_unaligned_le32(val, skb_put(skb, 4));
+}
+
+static int
+mt76x02u_mcu_wr_rp(struct mt76_dev *dev, u32 base,
+ const struct mt76_reg_pair *data, int n)
+{
+ const int max_vals_per_cmd = MT_INBAND_PACKET_MAX_LEN / 8;
+ const int CMD_RANDOM_WRITE = 12;
+ struct sk_buff *skb;
+ int cnt, i, ret;
+
+ if (!n)
+ return 0;
+
+ cnt = min(max_vals_per_cmd, n);
+
+ skb = alloc_skb(cnt * 8 + MT_DMA_HDR_LEN + 4, GFP_KERNEL);
+ if (!skb)
+ return -ENOMEM;
+ skb_reserve(skb, MT_DMA_HDR_LEN);
+
+ for (i = 0; i < cnt; i++) {
+ skb_put_le32(skb, base + data[i].reg);
+ skb_put_le32(skb, data[i].value);
+ }
+
+ mutex_lock(&dev->mcu.mutex);
+ ret = __mt76x02u_mcu_send_msg(dev, skb, CMD_RANDOM_WRITE, cnt == n);
+ mutex_unlock(&dev->mcu.mutex);
+ if (ret)
+ return ret;
+
+ return mt76x02u_mcu_wr_rp(dev, base, data + cnt, n - cnt);
+}
+
+static int
+mt76x02u_mcu_rd_rp(struct mt76_dev *dev, u32 base,
+ struct mt76_reg_pair *data, int n)
+{
+ const int CMD_RANDOM_READ = 10;
+ const int max_vals_per_cmd = MT_INBAND_PACKET_MAX_LEN / 8;
+ struct mt76_usb *usb = &dev->usb;
+ struct sk_buff *skb;
+ int cnt, i, ret;
+
+ if (!n)
+ return 0;
+
+ cnt = min(max_vals_per_cmd, n);
+ if (cnt != n)
+ return -EINVAL;
+
+ skb = alloc_skb(cnt * 8 + MT_DMA_HDR_LEN + 4, GFP_KERNEL);
+ if (!skb)
+ return -ENOMEM;
+ skb_reserve(skb, MT_DMA_HDR_LEN);
+
+ for (i = 0; i < cnt; i++) {
+ skb_put_le32(skb, base + data[i].reg);
+ skb_put_le32(skb, data[i].value);
+ }
+
+ mutex_lock(&dev->mcu.mutex);
+
+ usb->mcu.rp = data;
+ usb->mcu.rp_len = n;
+ usb->mcu.base = base;
+ usb->mcu.burst = false;
+
+ ret = __mt76x02u_mcu_send_msg(dev, skb, CMD_RANDOM_READ, true);
+
+ usb->mcu.rp = NULL;
+
+ mutex_unlock(&dev->mcu.mutex);
+
+ return ret;
+}
+
+void mt76x02u_mcu_fw_reset(struct mt76x02_dev *dev)
+{
+ mt76u_vendor_request(&dev->mt76, MT_VEND_DEV_MODE,
+ USB_DIR_OUT | USB_TYPE_VENDOR,
+ 0x1, 0, NULL, 0);
+}
+EXPORT_SYMBOL_GPL(mt76x02u_mcu_fw_reset);
+
+static int
+__mt76x02u_mcu_fw_send_data(struct mt76x02_dev *dev, u8 *data,
+ const void *fw_data, int len, u32 dst_addr)
+{
+ __le32 info;
+ u32 val;
+ int err, data_len;
+
+ info = cpu_to_le32(FIELD_PREP(MT_MCU_MSG_PORT, CPU_TX_PORT) |
+ FIELD_PREP(MT_MCU_MSG_LEN, len) |
+ MT_MCU_MSG_TYPE_CMD);
+
+ memcpy(data, &info, sizeof(info));
+ memcpy(data + sizeof(info), fw_data, len);
+ memset(data + sizeof(info) + len, 0, 4);
+
+ mt76u_single_wr(&dev->mt76, MT_VEND_WRITE_FCE,
+ MT_FCE_DMA_ADDR, dst_addr);
+ len = roundup(len, 4);
+ mt76u_single_wr(&dev->mt76, MT_VEND_WRITE_FCE,
+ MT_FCE_DMA_LEN, len << 16);
+
+ data_len = MT_CMD_HDR_LEN + len + sizeof(info);
+
+ err = mt76u_bulk_msg(&dev->mt76, data, data_len, NULL, 1000,
+ MT_EP_OUT_INBAND_CMD);
+ if (err) {
+ dev_err(dev->mt76.dev, "firmware upload failed: %d\n", err);
+ return err;
+ }
+
+ val = mt76_rr(dev, MT_TX_CPU_FROM_FCE_CPU_DESC_IDX);
+ val++;
+ mt76_wr(dev, MT_TX_CPU_FROM_FCE_CPU_DESC_IDX, val);
+
+ return 0;
+}
+
+int mt76x02u_mcu_fw_send_data(struct mt76x02_dev *dev, const void *data,
+ int data_len, u32 max_payload, u32 offset)
+{
+ int len, err = 0, pos = 0, max_len = max_payload - 8;
+ u8 *buf;
+
+ buf = kmalloc(max_payload, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ while (data_len > 0) {
+ len = min_t(int, data_len, max_len);
+ err = __mt76x02u_mcu_fw_send_data(dev, buf, data + pos,
+ len, offset + pos);
+ if (err < 0)
+ break;
+
+ data_len -= len;
+ pos += len;
+ usleep_range(5000, 10000);
+ }
+ kfree(buf);
+
+ return err;
+}
+EXPORT_SYMBOL_GPL(mt76x02u_mcu_fw_send_data);
+
+void mt76x02u_init_mcu(struct mt76_dev *dev)
+{
+ static const struct mt76_mcu_ops mt76x02u_mcu_ops = {
+ .headroom = MT_CMD_HDR_LEN,
+ .tailroom = 8,
+ .mcu_send_msg = mt76x02u_mcu_send_msg,
+ .mcu_parse_response = mt76x02_mcu_parse_response,
+ .mcu_wr_rp = mt76x02u_mcu_wr_rp,
+ .mcu_rd_rp = mt76x02u_mcu_rd_rp,
+ };
+
+ dev->mcu_ops = &mt76x02u_mcu_ops;
+}
+EXPORT_SYMBOL_GPL(mt76x02u_init_mcu);
+
+MODULE_AUTHOR("Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>");
+MODULE_LICENSE("Dual BSD/GPL");