mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-25 23:30:53 +07:00
9f2aee848f
This patch makes it possible to have UART drivers perform an internal initialization before calling hci_register_dev. This allows moving a lot of init code from user space (hciattach) to the kernel side, thereby creating a more controlled/robust initialization process. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
117 lines
2.9 KiB
C
117 lines
2.9 KiB
C
/*
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*
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* Bluetooth HCI UART driver
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*
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* Copyright (C) 2000-2001 Qualcomm Incorporated
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* Copyright (C) 2002-2003 Maxim Krasnyansky <maxk@qualcomm.com>
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* Copyright (C) 2004-2005 Marcel Holtmann <marcel@holtmann.org>
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#ifndef N_HCI
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#define N_HCI 15
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#endif
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/* Ioctls */
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#define HCIUARTSETPROTO _IOW('U', 200, int)
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#define HCIUARTGETPROTO _IOR('U', 201, int)
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#define HCIUARTGETDEVICE _IOR('U', 202, int)
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#define HCIUARTSETFLAGS _IOW('U', 203, int)
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#define HCIUARTGETFLAGS _IOR('U', 204, int)
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/* UART protocols */
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#define HCI_UART_MAX_PROTO 6
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#define HCI_UART_H4 0
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#define HCI_UART_BCSP 1
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#define HCI_UART_3WIRE 2
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#define HCI_UART_H4DS 3
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#define HCI_UART_LL 4
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#define HCI_UART_ATH3K 5
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#define HCI_UART_RAW_DEVICE 0
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#define HCI_UART_RESET_ON_INIT 1
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#define HCI_UART_CREATE_AMP 2
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#define HCI_UART_INIT_PENDING 3
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struct hci_uart;
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struct hci_uart_proto {
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unsigned int id;
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int (*open)(struct hci_uart *hu);
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int (*close)(struct hci_uart *hu);
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int (*flush)(struct hci_uart *hu);
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int (*recv)(struct hci_uart *hu, void *data, int len);
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int (*enqueue)(struct hci_uart *hu, struct sk_buff *skb);
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struct sk_buff *(*dequeue)(struct hci_uart *hu);
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};
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struct hci_uart {
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struct tty_struct *tty;
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struct hci_dev *hdev;
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unsigned long flags;
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unsigned long hdev_flags;
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struct work_struct init_ready;
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struct hci_uart_proto *proto;
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void *priv;
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struct sk_buff *tx_skb;
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unsigned long tx_state;
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spinlock_t rx_lock;
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};
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/* HCI_UART proto flag bits */
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#define HCI_UART_PROTO_SET 0
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#define HCI_UART_REGISTERED 1
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/* TX states */
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#define HCI_UART_SENDING 1
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#define HCI_UART_TX_WAKEUP 2
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int hci_uart_register_proto(struct hci_uart_proto *p);
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int hci_uart_unregister_proto(struct hci_uart_proto *p);
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int hci_uart_tx_wakeup(struct hci_uart *hu);
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int hci_uart_init_ready(struct hci_uart *hu);
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#ifdef CONFIG_BT_HCIUART_H4
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int h4_init(void);
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int h4_deinit(void);
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#endif
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#ifdef CONFIG_BT_HCIUART_BCSP
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int bcsp_init(void);
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int bcsp_deinit(void);
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#endif
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#ifdef CONFIG_BT_HCIUART_LL
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int ll_init(void);
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int ll_deinit(void);
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#endif
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#ifdef CONFIG_BT_HCIUART_ATH3K
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int ath_init(void);
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int ath_deinit(void);
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#endif
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#ifdef CONFIG_BT_HCIUART_3WIRE
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int h5_init(void);
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int h5_deinit(void);
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#endif
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