diff options
Diffstat (limited to 'hw/char/lm32_juart.c')
| -rw-r--r-- | hw/char/lm32_juart.c | 166 |
1 files changed, 0 insertions, 166 deletions
diff --git a/hw/char/lm32_juart.c b/hw/char/lm32_juart.c deleted file mode 100644 index ce30279650..0000000000 --- a/hw/char/lm32_juart.c +++ /dev/null @@ -1,166 +0,0 @@ -/* - * LatticeMico32 JTAG UART model. - * - * Copyright (c) 2010 Michael Walle <michael@walle.cc> - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, see <http://www.gnu.org/licenses/>. - */ - -#include "qemu/osdep.h" -#include "hw/sysbus.h" -#include "migration/vmstate.h" -#include "qemu/module.h" -#include "trace.h" -#include "chardev/char-fe.h" - -#include "hw/char/lm32_juart.h" -#include "hw/qdev-properties.h" -#include "hw/qdev-properties-system.h" -#include "qom/object.h" - -enum { - LM32_JUART_MIN_SAVE_VERSION = 0, - LM32_JUART_CURRENT_SAVE_VERSION = 0, - LM32_JUART_MAX_SAVE_VERSION = 0, -}; - -enum { - JTX_FULL = (1<<8), -}; - -enum { - JRX_FULL = (1<<8), -}; - -OBJECT_DECLARE_SIMPLE_TYPE(LM32JuartState, LM32_JUART) - -struct LM32JuartState { - SysBusDevice parent_obj; - - CharBackend chr; - - uint32_t jtx; - uint32_t jrx; -}; - -uint32_t lm32_juart_get_jtx(DeviceState *d) -{ - LM32JuartState *s = LM32_JUART(d); - - trace_lm32_juart_get_jtx(s->jtx); - return s->jtx; -} - -uint32_t lm32_juart_get_jrx(DeviceState *d) -{ - LM32JuartState *s = LM32_JUART(d); - - trace_lm32_juart_get_jrx(s->jrx); - return s->jrx; -} - -void lm32_juart_set_jtx(DeviceState *d, uint32_t jtx) -{ - LM32JuartState *s = LM32_JUART(d); - unsigned char ch = jtx & 0xff; - - trace_lm32_juart_set_jtx(s->jtx); - - s->jtx = jtx; - /* XXX this blocks entire thread. Rewrite to use - * qemu_chr_fe_write and background I/O callbacks */ - qemu_chr_fe_write_all(&s->chr, &ch, 1); -} - -void lm32_juart_set_jrx(DeviceState *d, uint32_t jtx) -{ - LM32JuartState *s = LM32_JUART(d); - - trace_lm32_juart_set_jrx(s->jrx); - s->jrx &= ~JRX_FULL; -} - -static void juart_rx(void *opaque, const uint8_t *buf, int size) -{ - LM32JuartState *s = opaque; - - s->jrx = *buf | JRX_FULL; -} - -static int juart_can_rx(void *opaque) -{ - LM32JuartState *s = opaque; - - return !(s->jrx & JRX_FULL); -} - -static void juart_event(void *opaque, QEMUChrEvent event) -{ -} - -static void juart_reset(DeviceState *d) -{ - LM32JuartState *s = LM32_JUART(d); - - s->jtx = 0; - s->jrx = 0; -} - -static void lm32_juart_realize(DeviceState *dev, Error **errp) -{ - LM32JuartState *s = LM32_JUART(dev); - - qemu_chr_fe_set_handlers(&s->chr, juart_can_rx, juart_rx, - juart_event, NULL, s, NULL, true); -} - -static const VMStateDescription vmstate_lm32_juart = { - .name = "lm32-juart", - .version_id = 1, - .minimum_version_id = 1, - .fields = (VMStateField[]) { - VMSTATE_UINT32(jtx, LM32JuartState), - VMSTATE_UINT32(jrx, LM32JuartState), - VMSTATE_END_OF_LIST() - } -}; - -static Property lm32_juart_properties[] = { - DEFINE_PROP_CHR("chardev", LM32JuartState, chr), - DEFINE_PROP_END_OF_LIST(), -}; - -static void lm32_juart_class_init(ObjectClass *klass, void *data) -{ - DeviceClass *dc = DEVICE_CLASS(klass); - - dc->reset = juart_reset; - dc->vmsd = &vmstate_lm32_juart; - device_class_set_props(dc, lm32_juart_properties); - dc->realize = lm32_juart_realize; -} - -static const TypeInfo lm32_juart_info = { - .name = TYPE_LM32_JUART, - .parent = TYPE_SYS_BUS_DEVICE, - .instance_size = sizeof(LM32JuartState), - .class_init = lm32_juart_class_init, -}; - -static void lm32_juart_register_types(void) -{ - type_register_static(&lm32_juart_info); -} - -type_init(lm32_juart_register_types) |