Move all the frontend struct and methods to a seperate unit. This avoids accidentally mixing backend and frontend calls, and helps with readabilty. Make qemu_chr_replay() a macro shared by both char and char-fe. Export qemu_chr_write(), and use a macro for qemu_chr_write_all() (nb: yes, CharBackend is for char frontend :) Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
1070 lines
30 KiB
C
1070 lines
30 KiB
C
/*
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* QEMU ESCC (Z8030/Z8530/Z85C30/SCC/ESCC) serial port emulation
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*
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* Copyright (c) 2003-2005 Fabrice Bellard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "qemu/osdep.h"
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#include "hw/hw.h"
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#include "hw/sysbus.h"
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#include "hw/char/escc.h"
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#include "chardev/char-fe.h"
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#include "chardev/char-serial.h"
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#include "ui/console.h"
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#include "ui/input.h"
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#include "trace.h"
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/*
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* Chipset docs:
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* "Z80C30/Z85C30/Z80230/Z85230/Z85233 SCC/ESCC User Manual",
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* http://www.zilog.com/docs/serial/scc_escc_um.pdf
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*
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* On Sparc32 this is the serial port, mouse and keyboard part of chip STP2001
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* (Slave I/O), also produced as NCR89C105. See
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* http://www.ibiblio.org/pub/historic-linux/early-ports/Sparc/NCR/NCR89C105.txt
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*
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* The serial ports implement full AMD AM8530 or Zilog Z8530 chips,
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* mouse and keyboard ports don't implement all functions and they are
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* only asynchronous. There is no DMA.
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*
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* Z85C30 is also used on PowerMacs. There are some small differences
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* between Sparc version (sunzilog) and PowerMac (pmac):
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* Offset between control and data registers
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* There is some kind of lockup bug, but we can ignore it
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* CTS is inverted
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* DMA on pmac using DBDMA chip
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* pmac can do IRDA and faster rates, sunzilog can only do 38400
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* pmac baud rate generator clock is 3.6864 MHz, sunzilog 4.9152 MHz
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*/
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/*
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* Modifications:
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* 2006-Aug-10 Igor Kovalenko : Renamed KBDQueue to SERIOQueue, implemented
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* serial mouse queue.
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* Implemented serial mouse protocol.
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*
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* 2010-May-23 Artyom Tarasenko: Reworked IUS logic
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*/
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typedef enum {
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chn_a, chn_b,
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} ChnID;
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#define CHN_C(s) ((s)->chn == chn_b? 'b' : 'a')
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typedef enum {
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ser, kbd, mouse,
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} ChnType;
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#define SERIO_QUEUE_SIZE 256
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typedef struct {
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uint8_t data[SERIO_QUEUE_SIZE];
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int rptr, wptr, count;
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} SERIOQueue;
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#define SERIAL_REGS 16
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typedef struct ChannelState {
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qemu_irq irq;
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uint32_t rxint, txint, rxint_under_svc, txint_under_svc;
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struct ChannelState *otherchn;
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uint32_t reg;
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uint8_t wregs[SERIAL_REGS], rregs[SERIAL_REGS];
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SERIOQueue queue;
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CharBackend chr;
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int e0_mode, led_mode, caps_lock_mode, num_lock_mode;
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int disabled;
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int clock;
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uint32_t vmstate_dummy;
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ChnID chn; // this channel, A (base+4) or B (base+0)
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ChnType type;
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uint8_t rx, tx;
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QemuInputHandlerState *hs;
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} ChannelState;
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#define ESCC(obj) OBJECT_CHECK(ESCCState, (obj), TYPE_ESCC)
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typedef struct ESCCState {
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SysBusDevice parent_obj;
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struct ChannelState chn[2];
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uint32_t it_shift;
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MemoryRegion mmio;
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uint32_t disabled;
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uint32_t frequency;
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} ESCCState;
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#define SERIAL_CTRL 0
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#define SERIAL_DATA 1
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#define W_CMD 0
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#define CMD_PTR_MASK 0x07
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#define CMD_CMD_MASK 0x38
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#define CMD_HI 0x08
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#define CMD_CLR_TXINT 0x28
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#define CMD_CLR_IUS 0x38
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#define W_INTR 1
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#define INTR_INTALL 0x01
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#define INTR_TXINT 0x02
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#define INTR_RXMODEMSK 0x18
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#define INTR_RXINT1ST 0x08
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#define INTR_RXINTALL 0x10
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#define W_IVEC 2
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#define W_RXCTRL 3
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#define RXCTRL_RXEN 0x01
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#define W_TXCTRL1 4
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#define TXCTRL1_PAREN 0x01
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#define TXCTRL1_PAREV 0x02
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#define TXCTRL1_1STOP 0x04
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#define TXCTRL1_1HSTOP 0x08
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#define TXCTRL1_2STOP 0x0c
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#define TXCTRL1_STPMSK 0x0c
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#define TXCTRL1_CLK1X 0x00
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#define TXCTRL1_CLK16X 0x40
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#define TXCTRL1_CLK32X 0x80
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#define TXCTRL1_CLK64X 0xc0
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#define TXCTRL1_CLKMSK 0xc0
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#define W_TXCTRL2 5
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#define TXCTRL2_TXEN 0x08
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#define TXCTRL2_BITMSK 0x60
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#define TXCTRL2_5BITS 0x00
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#define TXCTRL2_7BITS 0x20
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#define TXCTRL2_6BITS 0x40
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#define TXCTRL2_8BITS 0x60
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#define W_SYNC1 6
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#define W_SYNC2 7
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#define W_TXBUF 8
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#define W_MINTR 9
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#define MINTR_STATUSHI 0x10
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#define MINTR_RST_MASK 0xc0
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#define MINTR_RST_B 0x40
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#define MINTR_RST_A 0x80
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#define MINTR_RST_ALL 0xc0
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#define W_MISC1 10
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#define W_CLOCK 11
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#define CLOCK_TRXC 0x08
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#define W_BRGLO 12
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#define W_BRGHI 13
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#define W_MISC2 14
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#define MISC2_PLLDIS 0x30
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#define W_EXTINT 15
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#define EXTINT_DCD 0x08
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#define EXTINT_SYNCINT 0x10
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#define EXTINT_CTSINT 0x20
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#define EXTINT_TXUNDRN 0x40
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#define EXTINT_BRKINT 0x80
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#define R_STATUS 0
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#define STATUS_RXAV 0x01
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#define STATUS_ZERO 0x02
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#define STATUS_TXEMPTY 0x04
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#define STATUS_DCD 0x08
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#define STATUS_SYNC 0x10
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#define STATUS_CTS 0x20
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#define STATUS_TXUNDRN 0x40
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#define STATUS_BRK 0x80
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#define R_SPEC 1
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#define SPEC_ALLSENT 0x01
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#define SPEC_BITS8 0x06
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#define R_IVEC 2
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#define IVEC_TXINTB 0x00
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#define IVEC_LONOINT 0x06
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#define IVEC_LORXINTA 0x0c
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#define IVEC_LORXINTB 0x04
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#define IVEC_LOTXINTA 0x08
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#define IVEC_HINOINT 0x60
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#define IVEC_HIRXINTA 0x30
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#define IVEC_HIRXINTB 0x20
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#define IVEC_HITXINTA 0x10
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#define R_INTR 3
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#define INTR_EXTINTB 0x01
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#define INTR_TXINTB 0x02
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#define INTR_RXINTB 0x04
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#define INTR_EXTINTA 0x08
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#define INTR_TXINTA 0x10
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#define INTR_RXINTA 0x20
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#define R_IPEN 4
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#define R_TXCTRL1 5
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#define R_TXCTRL2 6
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#define R_BC 7
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#define R_RXBUF 8
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#define R_RXCTRL 9
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#define R_MISC 10
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#define R_MISC1 11
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#define R_BRGLO 12
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#define R_BRGHI 13
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#define R_MISC1I 14
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#define R_EXTINT 15
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static void handle_kbd_command(ChannelState *s, int val);
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static int serial_can_receive(void *opaque);
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static void serial_receive_byte(ChannelState *s, int ch);
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static void clear_queue(void *opaque)
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{
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ChannelState *s = opaque;
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SERIOQueue *q = &s->queue;
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q->rptr = q->wptr = q->count = 0;
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}
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static void put_queue(void *opaque, int b)
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{
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ChannelState *s = opaque;
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SERIOQueue *q = &s->queue;
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trace_escc_put_queue(CHN_C(s), b);
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if (q->count >= SERIO_QUEUE_SIZE)
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return;
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q->data[q->wptr] = b;
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if (++q->wptr == SERIO_QUEUE_SIZE)
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q->wptr = 0;
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q->count++;
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serial_receive_byte(s, 0);
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}
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static uint32_t get_queue(void *opaque)
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{
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ChannelState *s = opaque;
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SERIOQueue *q = &s->queue;
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int val;
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if (q->count == 0) {
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return 0;
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} else {
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val = q->data[q->rptr];
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if (++q->rptr == SERIO_QUEUE_SIZE)
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q->rptr = 0;
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q->count--;
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}
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trace_escc_get_queue(CHN_C(s), val);
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if (q->count > 0)
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serial_receive_byte(s, 0);
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return val;
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}
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static int escc_update_irq_chn(ChannelState *s)
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{
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if ((((s->wregs[W_INTR] & INTR_TXINT) && (s->txint == 1)) ||
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// tx ints enabled, pending
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((((s->wregs[W_INTR] & INTR_RXMODEMSK) == INTR_RXINT1ST) ||
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((s->wregs[W_INTR] & INTR_RXMODEMSK) == INTR_RXINTALL)) &&
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s->rxint == 1) || // rx ints enabled, pending
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((s->wregs[W_EXTINT] & EXTINT_BRKINT) &&
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(s->rregs[R_STATUS] & STATUS_BRK)))) { // break int e&p
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return 1;
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}
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return 0;
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}
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static void escc_update_irq(ChannelState *s)
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{
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int irq;
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irq = escc_update_irq_chn(s);
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irq |= escc_update_irq_chn(s->otherchn);
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trace_escc_update_irq(irq);
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qemu_set_irq(s->irq, irq);
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}
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static void escc_reset_chn(ChannelState *s)
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{
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int i;
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s->reg = 0;
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for (i = 0; i < SERIAL_REGS; i++) {
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s->rregs[i] = 0;
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s->wregs[i] = 0;
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}
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s->wregs[W_TXCTRL1] = TXCTRL1_1STOP; // 1X divisor, 1 stop bit, no parity
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s->wregs[W_MINTR] = MINTR_RST_ALL;
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s->wregs[W_CLOCK] = CLOCK_TRXC; // Synch mode tx clock = TRxC
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s->wregs[W_MISC2] = MISC2_PLLDIS; // PLL disabled
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s->wregs[W_EXTINT] = EXTINT_DCD | EXTINT_SYNCINT | EXTINT_CTSINT |
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EXTINT_TXUNDRN | EXTINT_BRKINT; // Enable most interrupts
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if (s->disabled)
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s->rregs[R_STATUS] = STATUS_TXEMPTY | STATUS_DCD | STATUS_SYNC |
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STATUS_CTS | STATUS_TXUNDRN;
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else
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s->rregs[R_STATUS] = STATUS_TXEMPTY | STATUS_TXUNDRN;
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s->rregs[R_SPEC] = SPEC_BITS8 | SPEC_ALLSENT;
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s->rx = s->tx = 0;
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s->rxint = s->txint = 0;
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s->rxint_under_svc = s->txint_under_svc = 0;
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s->e0_mode = s->led_mode = s->caps_lock_mode = s->num_lock_mode = 0;
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clear_queue(s);
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}
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static void escc_reset(DeviceState *d)
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{
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ESCCState *s = ESCC(d);
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escc_reset_chn(&s->chn[0]);
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escc_reset_chn(&s->chn[1]);
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}
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static inline void set_rxint(ChannelState *s)
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{
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s->rxint = 1;
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/* XXX: missing daisy chainnig: chn_b rx should have a lower priority
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than chn_a rx/tx/special_condition service*/
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s->rxint_under_svc = 1;
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if (s->chn == chn_a) {
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s->rregs[R_INTR] |= INTR_RXINTA;
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if (s->wregs[W_MINTR] & MINTR_STATUSHI)
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s->otherchn->rregs[R_IVEC] = IVEC_HIRXINTA;
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else
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s->otherchn->rregs[R_IVEC] = IVEC_LORXINTA;
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} else {
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s->otherchn->rregs[R_INTR] |= INTR_RXINTB;
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if (s->wregs[W_MINTR] & MINTR_STATUSHI)
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s->rregs[R_IVEC] = IVEC_HIRXINTB;
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else
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s->rregs[R_IVEC] = IVEC_LORXINTB;
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}
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escc_update_irq(s);
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}
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static inline void set_txint(ChannelState *s)
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{
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s->txint = 1;
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if (!s->rxint_under_svc) {
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s->txint_under_svc = 1;
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if (s->chn == chn_a) {
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if (s->wregs[W_INTR] & INTR_TXINT) {
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s->rregs[R_INTR] |= INTR_TXINTA;
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}
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if (s->wregs[W_MINTR] & MINTR_STATUSHI)
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s->otherchn->rregs[R_IVEC] = IVEC_HITXINTA;
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else
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s->otherchn->rregs[R_IVEC] = IVEC_LOTXINTA;
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} else {
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s->rregs[R_IVEC] = IVEC_TXINTB;
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if (s->wregs[W_INTR] & INTR_TXINT) {
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s->otherchn->rregs[R_INTR] |= INTR_TXINTB;
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}
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}
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escc_update_irq(s);
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}
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}
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|
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static inline void clr_rxint(ChannelState *s)
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{
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s->rxint = 0;
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s->rxint_under_svc = 0;
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if (s->chn == chn_a) {
|
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if (s->wregs[W_MINTR] & MINTR_STATUSHI)
|
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s->otherchn->rregs[R_IVEC] = IVEC_HINOINT;
|
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else
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s->otherchn->rregs[R_IVEC] = IVEC_LONOINT;
|
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s->rregs[R_INTR] &= ~INTR_RXINTA;
|
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} else {
|
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if (s->wregs[W_MINTR] & MINTR_STATUSHI)
|
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s->rregs[R_IVEC] = IVEC_HINOINT;
|
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else
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s->rregs[R_IVEC] = IVEC_LONOINT;
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s->otherchn->rregs[R_INTR] &= ~INTR_RXINTB;
|
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}
|
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if (s->txint)
|
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set_txint(s);
|
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escc_update_irq(s);
|
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}
|
|
|
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static inline void clr_txint(ChannelState *s)
|
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{
|
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s->txint = 0;
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s->txint_under_svc = 0;
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if (s->chn == chn_a) {
|
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if (s->wregs[W_MINTR] & MINTR_STATUSHI)
|
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s->otherchn->rregs[R_IVEC] = IVEC_HINOINT;
|
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else
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s->otherchn->rregs[R_IVEC] = IVEC_LONOINT;
|
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s->rregs[R_INTR] &= ~INTR_TXINTA;
|
|
} else {
|
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s->otherchn->rregs[R_INTR] &= ~INTR_TXINTB;
|
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if (s->wregs[W_MINTR] & MINTR_STATUSHI)
|
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s->rregs[R_IVEC] = IVEC_HINOINT;
|
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else
|
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s->rregs[R_IVEC] = IVEC_LONOINT;
|
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s->otherchn->rregs[R_INTR] &= ~INTR_TXINTB;
|
|
}
|
|
if (s->rxint)
|
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set_rxint(s);
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escc_update_irq(s);
|
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}
|
|
|
|
static void escc_update_parameters(ChannelState *s)
|
|
{
|
|
int speed, parity, data_bits, stop_bits;
|
|
QEMUSerialSetParams ssp;
|
|
|
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if (!qemu_chr_fe_get_driver(&s->chr) || s->type != ser)
|
|
return;
|
|
|
|
if (s->wregs[W_TXCTRL1] & TXCTRL1_PAREN) {
|
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if (s->wregs[W_TXCTRL1] & TXCTRL1_PAREV)
|
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parity = 'E';
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else
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parity = 'O';
|
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} else {
|
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parity = 'N';
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}
|
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if ((s->wregs[W_TXCTRL1] & TXCTRL1_STPMSK) == TXCTRL1_2STOP)
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stop_bits = 2;
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else
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stop_bits = 1;
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switch (s->wregs[W_TXCTRL2] & TXCTRL2_BITMSK) {
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case TXCTRL2_5BITS:
|
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data_bits = 5;
|
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break;
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case TXCTRL2_7BITS:
|
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data_bits = 7;
|
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break;
|
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case TXCTRL2_6BITS:
|
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data_bits = 6;
|
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break;
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default:
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case TXCTRL2_8BITS:
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data_bits = 8;
|
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break;
|
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}
|
|
speed = s->clock / ((s->wregs[W_BRGLO] | (s->wregs[W_BRGHI] << 8)) + 2);
|
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switch (s->wregs[W_TXCTRL1] & TXCTRL1_CLKMSK) {
|
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case TXCTRL1_CLK1X:
|
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break;
|
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case TXCTRL1_CLK16X:
|
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speed /= 16;
|
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break;
|
|
case TXCTRL1_CLK32X:
|
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speed /= 32;
|
|
break;
|
|
default:
|
|
case TXCTRL1_CLK64X:
|
|
speed /= 64;
|
|
break;
|
|
}
|
|
ssp.speed = speed;
|
|
ssp.parity = parity;
|
|
ssp.data_bits = data_bits;
|
|
ssp.stop_bits = stop_bits;
|
|
trace_escc_update_parameters(CHN_C(s), speed, parity, data_bits, stop_bits);
|
|
qemu_chr_fe_ioctl(&s->chr, CHR_IOCTL_SERIAL_SET_PARAMS, &ssp);
|
|
}
|
|
|
|
static void escc_mem_write(void *opaque, hwaddr addr,
|
|
uint64_t val, unsigned size)
|
|
{
|
|
ESCCState *serial = opaque;
|
|
ChannelState *s;
|
|
uint32_t saddr;
|
|
int newreg, channel;
|
|
|
|
val &= 0xff;
|
|
saddr = (addr >> serial->it_shift) & 1;
|
|
channel = (addr >> (serial->it_shift + 1)) & 1;
|
|
s = &serial->chn[channel];
|
|
switch (saddr) {
|
|
case SERIAL_CTRL:
|
|
trace_escc_mem_writeb_ctrl(CHN_C(s), s->reg, val & 0xff);
|
|
newreg = 0;
|
|
switch (s->reg) {
|
|
case W_CMD:
|
|
newreg = val & CMD_PTR_MASK;
|
|
val &= CMD_CMD_MASK;
|
|
switch (val) {
|
|
case CMD_HI:
|
|
newreg |= CMD_HI;
|
|
break;
|
|
case CMD_CLR_TXINT:
|
|
clr_txint(s);
|
|
break;
|
|
case CMD_CLR_IUS:
|
|
if (s->rxint_under_svc) {
|
|
s->rxint_under_svc = 0;
|
|
if (s->txint) {
|
|
set_txint(s);
|
|
}
|
|
} else if (s->txint_under_svc) {
|
|
s->txint_under_svc = 0;
|
|
}
|
|
escc_update_irq(s);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
case W_INTR ... W_RXCTRL:
|
|
case W_SYNC1 ... W_TXBUF:
|
|
case W_MISC1 ... W_CLOCK:
|
|
case W_MISC2 ... W_EXTINT:
|
|
s->wregs[s->reg] = val;
|
|
break;
|
|
case W_TXCTRL1:
|
|
case W_TXCTRL2:
|
|
s->wregs[s->reg] = val;
|
|
escc_update_parameters(s);
|
|
break;
|
|
case W_BRGLO:
|
|
case W_BRGHI:
|
|
s->wregs[s->reg] = val;
|
|
s->rregs[s->reg] = val;
|
|
escc_update_parameters(s);
|
|
break;
|
|
case W_MINTR:
|
|
switch (val & MINTR_RST_MASK) {
|
|
case 0:
|
|
default:
|
|
break;
|
|
case MINTR_RST_B:
|
|
escc_reset_chn(&serial->chn[0]);
|
|
return;
|
|
case MINTR_RST_A:
|
|
escc_reset_chn(&serial->chn[1]);
|
|
return;
|
|
case MINTR_RST_ALL:
|
|
escc_reset(DEVICE(serial));
|
|
return;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
if (s->reg == 0)
|
|
s->reg = newreg;
|
|
else
|
|
s->reg = 0;
|
|
break;
|
|
case SERIAL_DATA:
|
|
trace_escc_mem_writeb_data(CHN_C(s), val);
|
|
s->tx = val;
|
|
if (s->wregs[W_TXCTRL2] & TXCTRL2_TXEN) { // tx enabled
|
|
if (qemu_chr_fe_get_driver(&s->chr)) {
|
|
/* XXX this blocks entire thread. Rewrite to use
|
|
* qemu_chr_fe_write and background I/O callbacks */
|
|
qemu_chr_fe_write_all(&s->chr, &s->tx, 1);
|
|
} else if (s->type == kbd && !s->disabled) {
|
|
handle_kbd_command(s, val);
|
|
}
|
|
}
|
|
s->rregs[R_STATUS] |= STATUS_TXEMPTY; // Tx buffer empty
|
|
s->rregs[R_SPEC] |= SPEC_ALLSENT; // All sent
|
|
set_txint(s);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static uint64_t escc_mem_read(void *opaque, hwaddr addr,
|
|
unsigned size)
|
|
{
|
|
ESCCState *serial = opaque;
|
|
ChannelState *s;
|
|
uint32_t saddr;
|
|
uint32_t ret;
|
|
int channel;
|
|
|
|
saddr = (addr >> serial->it_shift) & 1;
|
|
channel = (addr >> (serial->it_shift + 1)) & 1;
|
|
s = &serial->chn[channel];
|
|
switch (saddr) {
|
|
case SERIAL_CTRL:
|
|
trace_escc_mem_readb_ctrl(CHN_C(s), s->reg, s->rregs[s->reg]);
|
|
ret = s->rregs[s->reg];
|
|
s->reg = 0;
|
|
return ret;
|
|
case SERIAL_DATA:
|
|
s->rregs[R_STATUS] &= ~STATUS_RXAV;
|
|
clr_rxint(s);
|
|
if (s->type == kbd || s->type == mouse)
|
|
ret = get_queue(s);
|
|
else
|
|
ret = s->rx;
|
|
trace_escc_mem_readb_data(CHN_C(s), ret);
|
|
qemu_chr_fe_accept_input(&s->chr);
|
|
return ret;
|
|
default:
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static const MemoryRegionOps escc_mem_ops = {
|
|
.read = escc_mem_read,
|
|
.write = escc_mem_write,
|
|
.endianness = DEVICE_NATIVE_ENDIAN,
|
|
.valid = {
|
|
.min_access_size = 1,
|
|
.max_access_size = 1,
|
|
},
|
|
};
|
|
|
|
static int serial_can_receive(void *opaque)
|
|
{
|
|
ChannelState *s = opaque;
|
|
int ret;
|
|
|
|
if (((s->wregs[W_RXCTRL] & RXCTRL_RXEN) == 0) // Rx not enabled
|
|
|| ((s->rregs[R_STATUS] & STATUS_RXAV) == STATUS_RXAV))
|
|
// char already available
|
|
ret = 0;
|
|
else
|
|
ret = 1;
|
|
return ret;
|
|
}
|
|
|
|
static void serial_receive_byte(ChannelState *s, int ch)
|
|
{
|
|
trace_escc_serial_receive_byte(CHN_C(s), ch);
|
|
s->rregs[R_STATUS] |= STATUS_RXAV;
|
|
s->rx = ch;
|
|
set_rxint(s);
|
|
}
|
|
|
|
static void serial_receive_break(ChannelState *s)
|
|
{
|
|
s->rregs[R_STATUS] |= STATUS_BRK;
|
|
escc_update_irq(s);
|
|
}
|
|
|
|
static void serial_receive1(void *opaque, const uint8_t *buf, int size)
|
|
{
|
|
ChannelState *s = opaque;
|
|
serial_receive_byte(s, buf[0]);
|
|
}
|
|
|
|
static void serial_event(void *opaque, int event)
|
|
{
|
|
ChannelState *s = opaque;
|
|
if (event == CHR_EVENT_BREAK)
|
|
serial_receive_break(s);
|
|
}
|
|
|
|
static const VMStateDescription vmstate_escc_chn = {
|
|
.name ="escc_chn",
|
|
.version_id = 2,
|
|
.minimum_version_id = 1,
|
|
.fields = (VMStateField[]) {
|
|
VMSTATE_UINT32(vmstate_dummy, ChannelState),
|
|
VMSTATE_UINT32(reg, ChannelState),
|
|
VMSTATE_UINT32(rxint, ChannelState),
|
|
VMSTATE_UINT32(txint, ChannelState),
|
|
VMSTATE_UINT32(rxint_under_svc, ChannelState),
|
|
VMSTATE_UINT32(txint_under_svc, ChannelState),
|
|
VMSTATE_UINT8(rx, ChannelState),
|
|
VMSTATE_UINT8(tx, ChannelState),
|
|
VMSTATE_BUFFER(wregs, ChannelState),
|
|
VMSTATE_BUFFER(rregs, ChannelState),
|
|
VMSTATE_END_OF_LIST()
|
|
}
|
|
};
|
|
|
|
static const VMStateDescription vmstate_escc = {
|
|
.name ="escc",
|
|
.version_id = 2,
|
|
.minimum_version_id = 1,
|
|
.fields = (VMStateField[]) {
|
|
VMSTATE_STRUCT_ARRAY(chn, ESCCState, 2, 2, vmstate_escc_chn,
|
|
ChannelState),
|
|
VMSTATE_END_OF_LIST()
|
|
}
|
|
};
|
|
|
|
MemoryRegion *escc_init(hwaddr base, qemu_irq irqA, qemu_irq irqB,
|
|
Chardev *chrA, Chardev *chrB,
|
|
int clock, int it_shift)
|
|
{
|
|
DeviceState *dev;
|
|
SysBusDevice *s;
|
|
ESCCState *d;
|
|
|
|
dev = qdev_create(NULL, TYPE_ESCC);
|
|
qdev_prop_set_uint32(dev, "disabled", 0);
|
|
qdev_prop_set_uint32(dev, "frequency", clock);
|
|
qdev_prop_set_uint32(dev, "it_shift", it_shift);
|
|
qdev_prop_set_chr(dev, "chrB", chrB);
|
|
qdev_prop_set_chr(dev, "chrA", chrA);
|
|
qdev_prop_set_uint32(dev, "chnBtype", ser);
|
|
qdev_prop_set_uint32(dev, "chnAtype", ser);
|
|
qdev_init_nofail(dev);
|
|
s = SYS_BUS_DEVICE(dev);
|
|
sysbus_connect_irq(s, 0, irqB);
|
|
sysbus_connect_irq(s, 1, irqA);
|
|
if (base) {
|
|
sysbus_mmio_map(s, 0, base);
|
|
}
|
|
|
|
d = ESCC(s);
|
|
return &d->mmio;
|
|
}
|
|
|
|
static const uint8_t qcode_to_keycode[Q_KEY_CODE__MAX] = {
|
|
[Q_KEY_CODE_SHIFT] = 99,
|
|
[Q_KEY_CODE_SHIFT_R] = 110,
|
|
[Q_KEY_CODE_ALT] = 19,
|
|
[Q_KEY_CODE_ALT_R] = 13,
|
|
[Q_KEY_CODE_ALTGR] = 13,
|
|
[Q_KEY_CODE_CTRL] = 76,
|
|
[Q_KEY_CODE_CTRL_R] = 76,
|
|
[Q_KEY_CODE_ESC] = 29,
|
|
[Q_KEY_CODE_1] = 30,
|
|
[Q_KEY_CODE_2] = 31,
|
|
[Q_KEY_CODE_3] = 32,
|
|
[Q_KEY_CODE_4] = 33,
|
|
[Q_KEY_CODE_5] = 34,
|
|
[Q_KEY_CODE_6] = 35,
|
|
[Q_KEY_CODE_7] = 36,
|
|
[Q_KEY_CODE_8] = 37,
|
|
[Q_KEY_CODE_9] = 38,
|
|
[Q_KEY_CODE_0] = 39,
|
|
[Q_KEY_CODE_MINUS] = 40,
|
|
[Q_KEY_CODE_EQUAL] = 41,
|
|
[Q_KEY_CODE_BACKSPACE] = 43,
|
|
[Q_KEY_CODE_TAB] = 53,
|
|
[Q_KEY_CODE_Q] = 54,
|
|
[Q_KEY_CODE_W] = 55,
|
|
[Q_KEY_CODE_E] = 56,
|
|
[Q_KEY_CODE_R] = 57,
|
|
[Q_KEY_CODE_T] = 58,
|
|
[Q_KEY_CODE_Y] = 59,
|
|
[Q_KEY_CODE_U] = 60,
|
|
[Q_KEY_CODE_I] = 61,
|
|
[Q_KEY_CODE_O] = 62,
|
|
[Q_KEY_CODE_P] = 63,
|
|
[Q_KEY_CODE_BRACKET_LEFT] = 64,
|
|
[Q_KEY_CODE_BRACKET_RIGHT] = 65,
|
|
[Q_KEY_CODE_RET] = 89,
|
|
[Q_KEY_CODE_A] = 77,
|
|
[Q_KEY_CODE_S] = 78,
|
|
[Q_KEY_CODE_D] = 79,
|
|
[Q_KEY_CODE_F] = 80,
|
|
[Q_KEY_CODE_G] = 81,
|
|
[Q_KEY_CODE_H] = 82,
|
|
[Q_KEY_CODE_J] = 83,
|
|
[Q_KEY_CODE_K] = 84,
|
|
[Q_KEY_CODE_L] = 85,
|
|
[Q_KEY_CODE_SEMICOLON] = 86,
|
|
[Q_KEY_CODE_APOSTROPHE] = 87,
|
|
[Q_KEY_CODE_GRAVE_ACCENT] = 42,
|
|
[Q_KEY_CODE_BACKSLASH] = 88,
|
|
[Q_KEY_CODE_Z] = 100,
|
|
[Q_KEY_CODE_X] = 101,
|
|
[Q_KEY_CODE_C] = 102,
|
|
[Q_KEY_CODE_V] = 103,
|
|
[Q_KEY_CODE_B] = 104,
|
|
[Q_KEY_CODE_N] = 105,
|
|
[Q_KEY_CODE_M] = 106,
|
|
[Q_KEY_CODE_COMMA] = 107,
|
|
[Q_KEY_CODE_DOT] = 108,
|
|
[Q_KEY_CODE_SLASH] = 109,
|
|
[Q_KEY_CODE_ASTERISK] = 47,
|
|
[Q_KEY_CODE_SPC] = 121,
|
|
[Q_KEY_CODE_CAPS_LOCK] = 119,
|
|
[Q_KEY_CODE_F1] = 5,
|
|
[Q_KEY_CODE_F2] = 6,
|
|
[Q_KEY_CODE_F3] = 8,
|
|
[Q_KEY_CODE_F4] = 10,
|
|
[Q_KEY_CODE_F5] = 12,
|
|
[Q_KEY_CODE_F6] = 14,
|
|
[Q_KEY_CODE_F7] = 16,
|
|
[Q_KEY_CODE_F8] = 17,
|
|
[Q_KEY_CODE_F9] = 18,
|
|
[Q_KEY_CODE_F10] = 7,
|
|
[Q_KEY_CODE_NUM_LOCK] = 98,
|
|
[Q_KEY_CODE_SCROLL_LOCK] = 23,
|
|
[Q_KEY_CODE_KP_DIVIDE] = 46,
|
|
[Q_KEY_CODE_KP_MULTIPLY] = 47,
|
|
[Q_KEY_CODE_KP_SUBTRACT] = 71,
|
|
[Q_KEY_CODE_KP_ADD] = 125,
|
|
[Q_KEY_CODE_KP_ENTER] = 90,
|
|
[Q_KEY_CODE_KP_DECIMAL] = 50,
|
|
[Q_KEY_CODE_KP_0] = 94,
|
|
[Q_KEY_CODE_KP_1] = 112,
|
|
[Q_KEY_CODE_KP_2] = 113,
|
|
[Q_KEY_CODE_KP_3] = 114,
|
|
[Q_KEY_CODE_KP_4] = 91,
|
|
[Q_KEY_CODE_KP_5] = 92,
|
|
[Q_KEY_CODE_KP_6] = 93,
|
|
[Q_KEY_CODE_KP_7] = 68,
|
|
[Q_KEY_CODE_KP_8] = 69,
|
|
[Q_KEY_CODE_KP_9] = 70,
|
|
[Q_KEY_CODE_LESS] = 124,
|
|
[Q_KEY_CODE_F11] = 9,
|
|
[Q_KEY_CODE_F12] = 11,
|
|
[Q_KEY_CODE_HOME] = 52,
|
|
[Q_KEY_CODE_PGUP] = 96,
|
|
[Q_KEY_CODE_PGDN] = 123,
|
|
[Q_KEY_CODE_END] = 74,
|
|
[Q_KEY_CODE_LEFT] = 24,
|
|
[Q_KEY_CODE_UP] = 20,
|
|
[Q_KEY_CODE_DOWN] = 27,
|
|
[Q_KEY_CODE_RIGHT] = 28,
|
|
[Q_KEY_CODE_INSERT] = 44,
|
|
[Q_KEY_CODE_DELETE] = 66,
|
|
[Q_KEY_CODE_STOP] = 1,
|
|
[Q_KEY_CODE_AGAIN] = 3,
|
|
[Q_KEY_CODE_PROPS] = 25,
|
|
[Q_KEY_CODE_UNDO] = 26,
|
|
[Q_KEY_CODE_FRONT] = 49,
|
|
[Q_KEY_CODE_COPY] = 51,
|
|
[Q_KEY_CODE_OPEN] = 72,
|
|
[Q_KEY_CODE_PASTE] = 73,
|
|
[Q_KEY_CODE_FIND] = 95,
|
|
[Q_KEY_CODE_CUT] = 97,
|
|
[Q_KEY_CODE_LF] = 111,
|
|
[Q_KEY_CODE_HELP] = 118,
|
|
[Q_KEY_CODE_META_L] = 120,
|
|
[Q_KEY_CODE_META_R] = 122,
|
|
[Q_KEY_CODE_COMPOSE] = 67,
|
|
[Q_KEY_CODE_PRINT] = 22,
|
|
[Q_KEY_CODE_SYSRQ] = 21,
|
|
};
|
|
|
|
static void sunkbd_handle_event(DeviceState *dev, QemuConsole *src,
|
|
InputEvent *evt)
|
|
{
|
|
ChannelState *s = (ChannelState *)dev;
|
|
int qcode, keycode;
|
|
InputKeyEvent *key;
|
|
|
|
assert(evt->type == INPUT_EVENT_KIND_KEY);
|
|
key = evt->u.key.data;
|
|
qcode = qemu_input_key_value_to_qcode(key->key);
|
|
trace_escc_sunkbd_event_in(qcode, QKeyCode_lookup[qcode],
|
|
key->down);
|
|
|
|
if (qcode == Q_KEY_CODE_CAPS_LOCK) {
|
|
if (key->down) {
|
|
s->caps_lock_mode ^= 1;
|
|
if (s->caps_lock_mode == 2) {
|
|
return; /* Drop second press */
|
|
}
|
|
} else {
|
|
s->caps_lock_mode ^= 2;
|
|
if (s->caps_lock_mode == 3) {
|
|
return; /* Drop first release */
|
|
}
|
|
}
|
|
}
|
|
|
|
if (qcode == Q_KEY_CODE_NUM_LOCK) {
|
|
if (key->down) {
|
|
s->num_lock_mode ^= 1;
|
|
if (s->num_lock_mode == 2) {
|
|
return; /* Drop second press */
|
|
}
|
|
} else {
|
|
s->num_lock_mode ^= 2;
|
|
if (s->num_lock_mode == 3) {
|
|
return; /* Drop first release */
|
|
}
|
|
}
|
|
}
|
|
|
|
keycode = qcode_to_keycode[qcode];
|
|
if (!key->down) {
|
|
keycode |= 0x80;
|
|
}
|
|
trace_escc_sunkbd_event_out(keycode);
|
|
put_queue(s, keycode);
|
|
}
|
|
|
|
static QemuInputHandler sunkbd_handler = {
|
|
.name = "sun keyboard",
|
|
.mask = INPUT_EVENT_MASK_KEY,
|
|
.event = sunkbd_handle_event,
|
|
};
|
|
|
|
static void handle_kbd_command(ChannelState *s, int val)
|
|
{
|
|
trace_escc_kbd_command(val);
|
|
if (s->led_mode) { // Ignore led byte
|
|
s->led_mode = 0;
|
|
return;
|
|
}
|
|
switch (val) {
|
|
case 1: // Reset, return type code
|
|
clear_queue(s);
|
|
put_queue(s, 0xff);
|
|
put_queue(s, 4); // Type 4
|
|
put_queue(s, 0x7f);
|
|
break;
|
|
case 0xe: // Set leds
|
|
s->led_mode = 1;
|
|
break;
|
|
case 7: // Query layout
|
|
case 0xf:
|
|
clear_queue(s);
|
|
put_queue(s, 0xfe);
|
|
put_queue(s, 0x21); /* en-us layout */
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void sunmouse_event(void *opaque,
|
|
int dx, int dy, int dz, int buttons_state)
|
|
{
|
|
ChannelState *s = opaque;
|
|
int ch;
|
|
|
|
trace_escc_sunmouse_event(dx, dy, buttons_state);
|
|
ch = 0x80 | 0x7; /* protocol start byte, no buttons pressed */
|
|
|
|
if (buttons_state & MOUSE_EVENT_LBUTTON)
|
|
ch ^= 0x4;
|
|
if (buttons_state & MOUSE_EVENT_MBUTTON)
|
|
ch ^= 0x2;
|
|
if (buttons_state & MOUSE_EVENT_RBUTTON)
|
|
ch ^= 0x1;
|
|
|
|
put_queue(s, ch);
|
|
|
|
ch = dx;
|
|
|
|
if (ch > 127)
|
|
ch = 127;
|
|
else if (ch < -127)
|
|
ch = -127;
|
|
|
|
put_queue(s, ch & 0xff);
|
|
|
|
ch = -dy;
|
|
|
|
if (ch > 127)
|
|
ch = 127;
|
|
else if (ch < -127)
|
|
ch = -127;
|
|
|
|
put_queue(s, ch & 0xff);
|
|
|
|
// MSC protocol specify two extra motion bytes
|
|
|
|
put_queue(s, 0);
|
|
put_queue(s, 0);
|
|
}
|
|
|
|
void slavio_serial_ms_kbd_init(hwaddr base, qemu_irq irq,
|
|
int disabled, int clock, int it_shift)
|
|
{
|
|
DeviceState *dev;
|
|
SysBusDevice *s;
|
|
|
|
dev = qdev_create(NULL, TYPE_ESCC);
|
|
qdev_prop_set_uint32(dev, "disabled", disabled);
|
|
qdev_prop_set_uint32(dev, "frequency", clock);
|
|
qdev_prop_set_uint32(dev, "it_shift", it_shift);
|
|
qdev_prop_set_chr(dev, "chrB", NULL);
|
|
qdev_prop_set_chr(dev, "chrA", NULL);
|
|
qdev_prop_set_uint32(dev, "chnBtype", mouse);
|
|
qdev_prop_set_uint32(dev, "chnAtype", kbd);
|
|
qdev_init_nofail(dev);
|
|
s = SYS_BUS_DEVICE(dev);
|
|
sysbus_connect_irq(s, 0, irq);
|
|
sysbus_connect_irq(s, 1, irq);
|
|
sysbus_mmio_map(s, 0, base);
|
|
}
|
|
|
|
static void escc_init1(Object *obj)
|
|
{
|
|
ESCCState *s = ESCC(obj);
|
|
SysBusDevice *dev = SYS_BUS_DEVICE(obj);
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < 2; i++) {
|
|
sysbus_init_irq(dev, &s->chn[i].irq);
|
|
s->chn[i].chn = 1 - i;
|
|
}
|
|
s->chn[0].otherchn = &s->chn[1];
|
|
s->chn[1].otherchn = &s->chn[0];
|
|
|
|
sysbus_init_mmio(dev, &s->mmio);
|
|
}
|
|
|
|
static void escc_realize(DeviceState *dev, Error **errp)
|
|
{
|
|
ESCCState *s = ESCC(dev);
|
|
unsigned int i;
|
|
|
|
s->chn[0].disabled = s->disabled;
|
|
s->chn[1].disabled = s->disabled;
|
|
|
|
memory_region_init_io(&s->mmio, OBJECT(dev), &escc_mem_ops, s, "escc",
|
|
ESCC_SIZE << s->it_shift);
|
|
|
|
for (i = 0; i < 2; i++) {
|
|
if (qemu_chr_fe_get_driver(&s->chn[i].chr)) {
|
|
s->chn[i].clock = s->frequency / 2;
|
|
qemu_chr_fe_set_handlers(&s->chn[i].chr, serial_can_receive,
|
|
serial_receive1, serial_event,
|
|
&s->chn[i], NULL, true);
|
|
}
|
|
}
|
|
|
|
if (s->chn[0].type == mouse) {
|
|
qemu_add_mouse_event_handler(sunmouse_event, &s->chn[0], 0,
|
|
"QEMU Sun Mouse");
|
|
}
|
|
if (s->chn[1].type == kbd) {
|
|
s->chn[1].hs = qemu_input_handler_register((DeviceState *)(&s->chn[1]),
|
|
&sunkbd_handler);
|
|
}
|
|
}
|
|
|
|
static Property escc_properties[] = {
|
|
DEFINE_PROP_UINT32("frequency", ESCCState, frequency, 0),
|
|
DEFINE_PROP_UINT32("it_shift", ESCCState, it_shift, 0),
|
|
DEFINE_PROP_UINT32("disabled", ESCCState, disabled, 0),
|
|
DEFINE_PROP_UINT32("chnBtype", ESCCState, chn[0].type, 0),
|
|
DEFINE_PROP_UINT32("chnAtype", ESCCState, chn[1].type, 0),
|
|
DEFINE_PROP_CHR("chrB", ESCCState, chn[0].chr),
|
|
DEFINE_PROP_CHR("chrA", ESCCState, chn[1].chr),
|
|
DEFINE_PROP_END_OF_LIST(),
|
|
};
|
|
|
|
static void escc_class_init(ObjectClass *klass, void *data)
|
|
{
|
|
DeviceClass *dc = DEVICE_CLASS(klass);
|
|
|
|
dc->reset = escc_reset;
|
|
dc->realize = escc_realize;
|
|
dc->vmsd = &vmstate_escc;
|
|
dc->props = escc_properties;
|
|
set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
|
|
}
|
|
|
|
static const TypeInfo escc_info = {
|
|
.name = TYPE_ESCC,
|
|
.parent = TYPE_SYS_BUS_DEVICE,
|
|
.instance_size = sizeof(ESCCState),
|
|
.instance_init = escc_init1,
|
|
.class_init = escc_class_init,
|
|
};
|
|
|
|
static void escc_register_types(void)
|
|
{
|
|
type_register_static(&escc_info);
|
|
}
|
|
|
|
type_init(escc_register_types)
|