Bluetooth: btmrvl: support sysfs initiated firmware coredump
Since commit 3c47d19ff4
("drivers: base: add coredump driver ops")
it is possible to initiate a device coredump from user-space. This
patch adds support for it in btmrvl_sdio adding the .coredump()
driver callback. This makes dump through debugfs obsolete so removing
it.
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
parent
803cdb8ce5
commit
45650499ee
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@ -167,35 +167,6 @@ static const struct file_operations btmrvl_hscmd_fops = {
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.llseek = default_llseek,
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};
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static ssize_t btmrvl_fwdump_write(struct file *file, const char __user *ubuf,
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size_t count, loff_t *ppos)
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{
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struct btmrvl_private *priv = file->private_data;
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char buf[16];
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bool result;
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memset(buf, 0, sizeof(buf));
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if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
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return -EFAULT;
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if (strtobool(buf, &result))
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return -EINVAL;
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if (!result)
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return -EINVAL;
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btmrvl_firmware_dump(priv);
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return count;
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}
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static const struct file_operations btmrvl_fwdump_fops = {
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.write = btmrvl_fwdump_write,
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.open = simple_open,
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.llseek = default_llseek,
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};
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void btmrvl_debugfs_init(struct hci_dev *hdev)
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{
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struct btmrvl_private *priv = hci_get_drvdata(hdev);
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@ -226,8 +197,6 @@ void btmrvl_debugfs_init(struct hci_dev *hdev)
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priv, &btmrvl_hscmd_fops);
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debugfs_create_file("hscfgcmd", 0644, dbg->config_dir,
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priv, &btmrvl_hscfgcmd_fops);
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debugfs_create_file("fw_dump", 0200, dbg->config_dir,
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priv, &btmrvl_fwdump_fops);
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dbg->status_dir = debugfs_create_dir("status", hdev->debugfs);
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debugfs_create_u8("curpsmode", 0444, dbg->status_dir,
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@ -110,7 +110,6 @@ struct btmrvl_private {
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u8 *payload, u16 nb);
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int (*hw_wakeup_firmware)(struct btmrvl_private *priv);
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int (*hw_process_int_status)(struct btmrvl_private *priv);
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void (*firmware_dump)(struct btmrvl_private *priv);
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spinlock_t driver_lock; /* spinlock used by driver */
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#ifdef CONFIG_DEBUG_FS
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void *debugfs_data;
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@ -183,7 +182,6 @@ int btmrvl_send_hscfg_cmd(struct btmrvl_private *priv);
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int btmrvl_enable_ps(struct btmrvl_private *priv);
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int btmrvl_prepare_command(struct btmrvl_private *priv);
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int btmrvl_enable_hs(struct btmrvl_private *priv);
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void btmrvl_firmware_dump(struct btmrvl_private *priv);
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#ifdef CONFIG_DEBUG_FS
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void btmrvl_debugfs_init(struct hci_dev *hdev);
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@ -358,12 +358,6 @@ int btmrvl_prepare_command(struct btmrvl_private *priv)
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return ret;
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}
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void btmrvl_firmware_dump(struct btmrvl_private *priv)
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{
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if (priv->firmware_dump)
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priv->firmware_dump(priv);
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}
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static int btmrvl_tx_pkt(struct btmrvl_private *priv, struct sk_buff *skb)
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{
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int ret = 0;
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@ -1311,9 +1311,11 @@ rdwr_status btmrvl_sdio_rdwr_firmware(struct btmrvl_private *priv,
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}
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/* This function dump sdio register and memory data */
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static void btmrvl_sdio_dump_firmware(struct btmrvl_private *priv)
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static void btmrvl_sdio_coredump(struct device *dev)
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{
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struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
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struct sdio_func *func = dev_to_sdio_func(dev);
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struct btmrvl_sdio_card *card;
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struct btmrvl_private *priv;
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int ret = 0;
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unsigned int reg, reg_start, reg_end;
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enum rdwr_status stat;
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@ -1321,6 +1323,9 @@ static void btmrvl_sdio_dump_firmware(struct btmrvl_private *priv)
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u8 dump_num = 0, idx, i, read_reg, doneflag = 0;
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u32 memory_size, fw_dump_len = 0;
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card = sdio_get_drvdata(func);
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priv = card->priv;
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/* dump sdio register first */
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btmrvl_sdio_dump_regs(priv);
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@ -1547,7 +1552,6 @@ static int btmrvl_sdio_probe(struct sdio_func *func,
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priv->hw_host_to_card = btmrvl_sdio_host_to_card;
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priv->hw_wakeup_firmware = btmrvl_sdio_wakeup_fw;
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priv->hw_process_int_status = btmrvl_sdio_process_int_status;
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priv->firmware_dump = btmrvl_sdio_dump_firmware;
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if (btmrvl_register_hdev(priv)) {
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BT_ERR("Register hdev failed!");
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@ -1717,6 +1721,7 @@ static struct sdio_driver bt_mrvl_sdio = {
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.remove = btmrvl_sdio_remove,
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.drv = {
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.owner = THIS_MODULE,
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.coredump = btmrvl_sdio_coredump,
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.pm = &btmrvl_sdio_pm_ops,
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}
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};
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