Quelle mt76x02_usb_mcu.c Sprache: C

// SPDX-License-Identifier: ISC
/*
* Copyright (C) 2018 Lorenzo Bianconi <lorenzo.java.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 31

#java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 24
#include <inux/firmware.h>

# "t76x02.h"
#include "mt76x02_mcu.h"
#include "mt76x02_usb.h"

#definemt76x02u_multiple_mcu_readsstruct mt76_dev dev,*ata int )

#define MT_FCE_DMA_ADDR   0java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 0
#define    0

#define MT_TX_CPU_FROM_FCE_CPU_DESC_IDX 0x09a8

static -.rpi.value  val;
mt76x02u_multiple_mcu_readsmt76_dev dev u8u8 *,  lenlen)
{
struct mt76_usb *u8 *data = usb->mcu.data
  ijava.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 7

WARN_ON_ONCE(len / 8 != usb->mcu.rp_len);

  seq= FIELD_GET(MT_RX_FCE_INFO_CMD_SEQ, rxfce)&java.lang.StringIndexOutOfBoundsException: Index 56 out of bounds for length 56
  reg =(data  8* )usb-mcu.java.lang.StringIndexOutOfBoundsException: Index 61 out of bounds for length 61
  u32 val =java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

  WARN_ON_ONCE(usb->mcu.rp[i].reg != reg);
usb->mcu.i. = val;
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
}

tatic  mt76x02u_mcu_wait_resp(struct java.lang.StringIndexOutOfBoundsException: Range [51, 49) out of bounds for length 63
{
java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 0
u8 *data = usb-java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
int i, len, ret;
u32 rxfce;

for (i = 0; i < 5; i++) {
(&dev>mcu.;
        300, MT_EP_IN_CMD_RESP);
  if (ret == -ETIMEDOUT)
   continue;
  if (et)

  if (usb->mcu.rp)
mt76x02u_multiple_mcu_readsdev,data + 4,  -8)

  =get_unaligned_le32(ata)
if( = FIELD_GET(T_RX_FCE_INFO_CMD_SEQ) &
FIELD_GET(,  = )
   java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2

  dev_err(dev->dev, "error: MCU resp evt:% (>mutex)java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31
   (!)
  cnt =min(max_vals_per_cmd, ;
}
out:
dev_err(dev->if(!skb)
returnjava.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12
}

static int
_ skb_put_le32,data[i].value)
  intcmd  wait_resp)
{
u8 seq = 0;
u32 info;
int java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9

if (java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 1
  ret = 0;
  goto out;
}

if (wait_resp) {
  seq = ++dev->mcu.msg_seq & 0xf;
  if (!seq)
   u32 ;
}

info = FIELD_PREP(MT_MCU_MSG_CMD_SEQ    FIELD_PREP(MT_MCU_MSG_LEN, )|
        FIELD_PREP(MT_MCU_MSG_CMD_TYPE, cmd) |
        MT_FCE_DMA_LEN < 16;

if (etjava.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
  return ret;

   dev,>,> , 500java.lang.StringIndexOutOfBoundsException: Index 58 out of bounds for length 58
       );
if (etjava.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
  goto out;

if (wait_resp)
it_resp(dev,seq;

out:
consume_skb(skb);

return ret;
}

static int
mt76x02u_mcu_send_msg(struct mt76_dev *dev, int cmd, const java.lang.StringIndexOutOfBoundsException: Range [0, 63) out of bounds for length 38
        int  data_len -=len;
{
struct sk_buff *skb;
int err;

skb = (dev, data, len);
if (!skb)
   .headroom = MT_CMD_HDR_LEN,

mutex_lock(&dev->mcu.mutex);
err = _dev-mcu_ops=&mt76x02u_mcu_ops
mutex_unlock(&dev-mcu.;

return ;
}

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;

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_DESCRIPTION("MediaTek MT76x02 MCU helpers");
MODULE_LICENSE("Dual BSD/GPL");

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