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author | Andreas Sandberg <andreas.sandberg@arm.com> | 2017-07-20 11:58:06 +0100 |
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committer | Andreas Sandberg <andreas.sandberg@arm.com> | 2017-11-08 20:04:53 +0000 |
commit | 20de3bb759a36dbffed10adae2159e376b7cb68c (patch) | |
tree | 8984162e7204528cd5297e5514a4e6deda4536a3 /src/dev/uart8250.hh | |
parent | 74d3f8a1765869765b542fd91114628a62947ba9 (diff) | |
download | gem5-20de3bb759a36dbffed10adae2159e376b7cb68c.tar.xz |
dev: Move generic serial devices to src/dev/serial
Change-Id: I104227fc460f8b561e7375b329a541c1fce881b2
Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Curtis Dunham <curtis.dunham@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/4291
Reviewed-by: Gabe Black <gabeblack@google.com>
Diffstat (limited to 'src/dev/uart8250.hh')
-rw-r--r-- | src/dev/uart8250.hh | 111 |
1 files changed, 0 insertions, 111 deletions
diff --git a/src/dev/uart8250.hh b/src/dev/uart8250.hh deleted file mode 100644 index b7fefc534..000000000 --- a/src/dev/uart8250.hh +++ /dev/null @@ -1,111 +0,0 @@ -/* - * Copyright (c) 2005 The Regents of The University of Michigan - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer; - * redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution; - * neither the name of the copyright holders nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * Authors: Ali Saidi - */ - -/** @file - * Defines a 8250 UART - */ - -#ifndef __DEV_UART8250_HH__ -#define __DEV_UART8250_HH__ - -#include "dev/io_device.hh" -#include "dev/uart.hh" -#include "params/Uart8250.hh" - -/* UART8250 Interrupt ID Register - * bit 0 Interrupt Pending 0 = true, 1 = false - * bit 2:1 ID of highest priority interrupt - * bit 7:3 zeroes - */ -const uint8_t IIR_NOPEND = 0x1; - -// Interrupt IDs -const uint8_t IIR_MODEM = 0x00; /* Modem Status (lowest priority) */ -const uint8_t IIR_TXID = 0x02; /* Tx Data */ -const uint8_t IIR_RXID = 0x04; /* Rx Data */ -const uint8_t IIR_LINE = 0x06; /* Rx Line Status (highest priority)*/ - -const uint8_t UART_IER_RDI = 0x01; -const uint8_t UART_IER_THRI = 0x02; -const uint8_t UART_IER_RLSI = 0x04; - - -const uint8_t UART_LSR_TEMT = 0x40; -const uint8_t UART_LSR_THRE = 0x20; -const uint8_t UART_LSR_DR = 0x01; - -const uint8_t UART_MCR_LOOP = 0x10; - - -class Terminal; -class Platform; - -class Uart8250 : public Uart -{ - protected: - uint8_t IER, DLAB, LCR, MCR; - Tick lastTxInt; - - void processIntrEvent(int intrBit); - void scheduleIntr(Event *event); - - EventFunctionWrapper txIntrEvent; - EventFunctionWrapper rxIntrEvent; - - public: - typedef Uart8250Params Params; - const Params * - params() const - { - return dynamic_cast<const Params *>(_params); - } - Uart8250(const Params *p); - - Tick read(PacketPtr pkt) override; - Tick write(PacketPtr pkt) override; - AddrRangeList getAddrRanges() const override; - - /** - * Inform the uart that there is data available. - */ - void dataAvailable() override; - - - /** - * Return if we have an interrupt pending - * @return interrupt status - */ - virtual bool intStatus() { return status ? true : false; } - - void serialize(CheckpointOut &cp) const override; - void unserialize(CheckpointIn &cp) override; -}; - -#endif // __TSUNAMI_UART_HH__ |