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Diffstat (limited to 'hw/serial.h')
-rw-r--r-- | hw/serial.h | 101 |
1 files changed, 0 insertions, 101 deletions
diff --git a/hw/serial.h b/hw/serial.h deleted file mode 100644 index e884499607..0000000000 --- a/hw/serial.h +++ /dev/null @@ -1,101 +0,0 @@ -/* - * QEMU 16550A UART emulation - * - * Copyright (c) 2003-2004 Fabrice Bellard - * Copyright (c) 2008 Citrix Systems, Inc. - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ -#ifndef HW_SERIAL_H -#define HW_SERIAL_H 1 - -#include "hw/hw.h" -#include "sysemu/sysemu.h" -#include "exec/memory.h" - -#define UART_FIFO_LENGTH 16 /* 16550A Fifo Length */ - -typedef struct SerialFIFO { - uint8_t data[UART_FIFO_LENGTH]; - uint8_t count; - uint8_t itl; /* Interrupt Trigger Level */ - uint8_t tail; - uint8_t head; -} SerialFIFO; - -struct SerialState { - uint16_t divider; - uint8_t rbr; /* receive register */ - uint8_t thr; /* transmit holding register */ - uint8_t tsr; /* transmit shift register */ - uint8_t ier; - uint8_t iir; /* read only */ - uint8_t lcr; - uint8_t mcr; - uint8_t lsr; /* read only */ - uint8_t msr; /* read only */ - uint8_t scr; - uint8_t fcr; - uint8_t fcr_vmstate; /* we can't write directly this value - it has side effects */ - /* NOTE: this hidden state is necessary for tx irq generation as - it can be reset while reading iir */ - int thr_ipending; - qemu_irq irq; - CharDriverState *chr; - int last_break_enable; - int it_shift; - int baudbase; - int tsr_retry; - uint32_t wakeup; - - /* Time when the last byte was successfully sent out of the tsr */ - uint64_t last_xmit_ts; - SerialFIFO recv_fifo; - SerialFIFO xmit_fifo; - - struct QEMUTimer *fifo_timeout_timer; - int timeout_ipending; /* timeout interrupt pending state */ - - uint64_t char_transmit_time; /* time to transmit a char in ticks */ - int poll_msl; - - struct QEMUTimer *modem_status_poll; - MemoryRegion io; -}; - -extern const VMStateDescription vmstate_serial; -extern const MemoryRegionOps serial_io_ops; - -void serial_init_core(SerialState *s); -void serial_exit_core(SerialState *s); -void serial_set_frequency(SerialState *s, uint32_t frequency); - -/* legacy pre qom */ -SerialState *serial_init(int base, qemu_irq irq, int baudbase, - CharDriverState *chr, MemoryRegion *system_io); -SerialState *serial_mm_init(MemoryRegion *address_space, - hwaddr base, int it_shift, - qemu_irq irq, int baudbase, - CharDriverState *chr, enum device_endian end); - -/* serial-isa.c */ -bool serial_isa_init(ISABus *bus, int index, CharDriverState *chr); - -#endif |