mirror of
https://github.com/projectacrn/acrn-hypervisor.git
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99586e32cc
For data structure types "struct vm", its name is identical with variable name in the same scope. This is a MISRA C violation. Naming convention rule:If the data structure type is used by multi modules, its corresponding logic resource is exposed to external components (such as SOS, UOS), and its name meaning is simplistic (such as vcpu, vm), its name needs prefix "acrn_". The following udpates are made: struct vm *vm-->struct acrn_vm *vm Tracked-On: #861 Signed-off-by: Xiangyang Wu <xiangyang.wu@linux.intel.com>
91 lines
3.1 KiB
C
91 lines
3.1 KiB
C
/*-
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* Copyright (c) 2013 Neel Natu <neel@freebsd.org>
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* Copyright (c) 2018 Intel Corporation
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef VUART_H
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#define VUART_H
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#define RX_BUF_SIZE 256U
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#define TX_BUF_SIZE 8192U
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struct fifo {
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char *buf;
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uint32_t rindex; /* index to read from */
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uint32_t windex; /* index to write to */
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uint32_t num; /* number of characters in the fifo */
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uint32_t size; /* size of the fifo */
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};
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struct acrn_vuart {
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uint8_t data; /* Data register (R/W) */
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uint8_t ier; /* Interrupt enable register (R/W) */
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uint8_t lcr; /* Line control register (R/W) */
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uint8_t mcr; /* Modem control register (R/W) */
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uint8_t lsr; /* Line status register (R/W) */
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uint8_t msr; /* Modem status register (R/W) */
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uint8_t fcr; /* FIFO control register (W) */
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uint8_t scr; /* Scratch register (R/W) */
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uint8_t dll; /* Baudrate divisor latch LSB */
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uint8_t dlh; /* Baudrate divisor latch MSB */
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struct fifo rxfifo;
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struct fifo txfifo;
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uint16_t base;
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#ifdef CONFIG_PARTITION_MODE
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char vuart_rx_buf[RX_BUF_SIZE];
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char vuart_tx_buf[TX_BUF_SIZE];
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#endif
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bool thre_int_pending; /* THRE interrupt pending */
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bool active;
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struct acrn_vm *vm;
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spinlock_t lock; /* protects all softc elements */
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};
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#ifdef CONFIG_PARTITION_MODE
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extern int8_t vuart_vmid;
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#endif
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#ifdef HV_DEBUG
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#define COM1_IRQ 6U
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void vuart_init(struct acrn_vm *vm);
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struct acrn_vuart *vuart_console_active(void);
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void vuart_console_tx_chars(struct acrn_vuart *vu);
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void vuart_console_rx_chars(struct acrn_vuart *vu);
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#else
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#define COM1_IRQ 0xFFU
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static inline void vuart_init(__unused struct acrn_vm *vm)
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{
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}
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static inline struct acrn_vuart *vuart_console_active(void)
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{
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return NULL;
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}
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static inline void vuart_console_tx_chars(__unused struct acrn_vuart *vu) {}
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static inline void vuart_console_rx_chars(__unused struct acrn_vuart *vu) {}
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#endif /* HV_DEBUG */
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#endif /* VUART_H */
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