aboutsummaryrefslogtreecommitdiff
path: root/hw/char
diff options
context:
space:
mode:
Diffstat (limited to 'hw/char')
-rw-r--r--hw/char/lm32_juart.c166
-rw-r--r--hw/char/lm32_uart.c314
-rw-r--r--hw/char/meson.build4
-rw-r--r--hw/char/milkymist-uart.c258
-rw-r--r--hw/char/shakti_uart.c185
-rw-r--r--hw/char/trace-events21
6 files changed, 190 insertions, 758 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)
diff --git a/hw/char/lm32_uart.c b/hw/char/lm32_uart.c
deleted file mode 100644
index d8e0331311..0000000000
--- a/hw/char/lm32_uart.c
+++ /dev/null
@@ -1,314 +0,0 @@
-/*
- * QEMU model of the LatticeMico32 UART block.
- *
- * 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/>.
- *
- *
- * Specification available at:
- * http://www.latticesemi.com/documents/mico32uart.pdf
- */
-
-
-#include "qemu/osdep.h"
-#include "hw/irq.h"
-#include "hw/qdev-properties.h"
-#include "hw/qdev-properties-system.h"
-#include "hw/sysbus.h"
-#include "migration/vmstate.h"
-#include "trace.h"
-#include "chardev/char-fe.h"
-#include "qemu/error-report.h"
-#include "qemu/module.h"
-#include "qom/object.h"
-
-enum {
- R_RXTX = 0,
- R_IER,
- R_IIR,
- R_LCR,
- R_MCR,
- R_LSR,
- R_MSR,
- R_DIV,
- R_MAX
-};
-
-enum {
- IER_RBRI = (1<<0),
- IER_THRI = (1<<1),
- IER_RLSI = (1<<2),
- IER_MSI = (1<<3),
-};
-
-enum {
- IIR_STAT = (1<<0),
- IIR_ID0 = (1<<1),
- IIR_ID1 = (1<<2),
-};
-
-enum {
- LCR_WLS0 = (1<<0),
- LCR_WLS1 = (1<<1),
- LCR_STB = (1<<2),
- LCR_PEN = (1<<3),
- LCR_EPS = (1<<4),
- LCR_SP = (1<<5),
- LCR_SB = (1<<6),
-};
-
-enum {
- MCR_DTR = (1<<0),
- MCR_RTS = (1<<1),
-};
-
-enum {
- LSR_DR = (1<<0),
- LSR_OE = (1<<1),
- LSR_PE = (1<<2),
- LSR_FE = (1<<3),
- LSR_BI = (1<<4),
- LSR_THRE = (1<<5),
- LSR_TEMT = (1<<6),
-};
-
-enum {
- MSR_DCTS = (1<<0),
- MSR_DDSR = (1<<1),
- MSR_TERI = (1<<2),
- MSR_DDCD = (1<<3),
- MSR_CTS = (1<<4),
- MSR_DSR = (1<<5),
- MSR_RI = (1<<6),
- MSR_DCD = (1<<7),
-};
-
-#define TYPE_LM32_UART "lm32-uart"
-OBJECT_DECLARE_SIMPLE_TYPE(LM32UartState, LM32_UART)
-
-struct LM32UartState {
- SysBusDevice parent_obj;
-
- MemoryRegion iomem;
- CharBackend chr;
- qemu_irq irq;
-
- uint32_t regs[R_MAX];
-};
-
-static void uart_update_irq(LM32UartState *s)
-{
- unsigned int irq;
-
- if ((s->regs[R_LSR] & (LSR_OE | LSR_PE | LSR_FE | LSR_BI))
- && (s->regs[R_IER] & IER_RLSI)) {
- irq = 1;
- s->regs[R_IIR] = IIR_ID1 | IIR_ID0;
- } else if ((s->regs[R_LSR] & LSR_DR) && (s->regs[R_IER] & IER_RBRI)) {
- irq = 1;
- s->regs[R_IIR] = IIR_ID1;
- } else if ((s->regs[R_LSR] & LSR_THRE) && (s->regs[R_IER] & IER_THRI)) {
- irq = 1;
- s->regs[R_IIR] = IIR_ID0;
- } else if ((s->regs[R_MSR] & 0x0f) && (s->regs[R_IER] & IER_MSI)) {
- irq = 1;
- s->regs[R_IIR] = 0;
- } else {
- irq = 0;
- s->regs[R_IIR] = IIR_STAT;
- }
-
- trace_lm32_uart_irq_state(irq);
- qemu_set_irq(s->irq, irq);
-}
-
-static uint64_t uart_read(void *opaque, hwaddr addr,
- unsigned size)
-{
- LM32UartState *s = opaque;
- uint32_t r = 0;
-
- addr >>= 2;
- switch (addr) {
- case R_RXTX:
- r = s->regs[R_RXTX];
- s->regs[R_LSR] &= ~LSR_DR;
- uart_update_irq(s);
- qemu_chr_fe_accept_input(&s->chr);
- break;
- case R_IIR:
- case R_LSR:
- case R_MSR:
- r = s->regs[addr];
- break;
- case R_IER:
- case R_LCR:
- case R_MCR:
- case R_DIV:
- error_report("lm32_uart: read access to write only register 0x"
- TARGET_FMT_plx, addr << 2);
- break;
- default:
- error_report("lm32_uart: read access to unknown register 0x"
- TARGET_FMT_plx, addr << 2);
- break;
- }
-
- trace_lm32_uart_memory_read(addr << 2, r);
- return r;
-}
-
-static void uart_write(void *opaque, hwaddr addr,
- uint64_t value, unsigned size)
-{
- LM32UartState *s = opaque;
- unsigned char ch = value;
-
- trace_lm32_uart_memory_write(addr, value);
-
- addr >>= 2;
- switch (addr) {
- case R_RXTX:
- /* 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);
- break;
- case R_IER:
- case R_LCR:
- case R_MCR:
- case R_DIV:
- s->regs[addr] = value;
- break;
- case R_IIR:
- case R_LSR:
- case R_MSR:
- error_report("lm32_uart: write access to read only register 0x"
- TARGET_FMT_plx, addr << 2);
- break;
- default:
- error_report("lm32_uart: write access to unknown register 0x"
- TARGET_FMT_plx, addr << 2);
- break;
- }
- uart_update_irq(s);
-}
-
-static const MemoryRegionOps uart_ops = {
- .read = uart_read,
- .write = uart_write,
- .endianness = DEVICE_NATIVE_ENDIAN,
- .valid = {
- .min_access_size = 4,
- .max_access_size = 4,
- },
-};
-
-static void uart_rx(void *opaque, const uint8_t *buf, int size)
-{
- LM32UartState *s = opaque;
-
- if (s->regs[R_LSR] & LSR_DR) {
- s->regs[R_LSR] |= LSR_OE;
- }
-
- s->regs[R_LSR] |= LSR_DR;
- s->regs[R_RXTX] = *buf;
-
- uart_update_irq(s);
-}
-
-static int uart_can_rx(void *opaque)
-{
- LM32UartState *s = opaque;
-
- return !(s->regs[R_LSR] & LSR_DR);
-}
-
-static void uart_event(void *opaque, QEMUChrEvent event)
-{
-}
-
-static void uart_reset(DeviceState *d)
-{
- LM32UartState *s = LM32_UART(d);
- int i;
-
- for (i = 0; i < R_MAX; i++) {
- s->regs[i] = 0;
- }
-
- /* defaults */
- s->regs[R_LSR] = LSR_THRE | LSR_TEMT;
-}
-
-static void lm32_uart_init(Object *obj)
-{
- LM32UartState *s = LM32_UART(obj);
- SysBusDevice *dev = SYS_BUS_DEVICE(obj);
-
- sysbus_init_irq(dev, &s->irq);
-
- memory_region_init_io(&s->iomem, obj, &uart_ops, s,
- "uart", R_MAX * 4);
- sysbus_init_mmio(dev, &s->iomem);
-}
-
-static void lm32_uart_realize(DeviceState *dev, Error **errp)
-{
- LM32UartState *s = LM32_UART(dev);
-
- qemu_chr_fe_set_handlers(&s->chr, uart_can_rx, uart_rx,
- uart_event, NULL, s, NULL, true);
-}
-
-static const VMStateDescription vmstate_lm32_uart = {
- .name = "lm32-uart",
- .version_id = 1,
- .minimum_version_id = 1,
- .fields = (VMStateField[]) {
- VMSTATE_UINT32_ARRAY(regs, LM32UartState, R_MAX),
- VMSTATE_END_OF_LIST()
- }
-};
-
-static Property lm32_uart_properties[] = {
- DEFINE_PROP_CHR("chardev", LM32UartState, chr),
- DEFINE_PROP_END_OF_LIST(),
-};
-
-static void lm32_uart_class_init(ObjectClass *klass, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
-
- dc->reset = uart_reset;
- dc->vmsd = &vmstate_lm32_uart;
- device_class_set_props(dc, lm32_uart_properties);
- dc->realize = lm32_uart_realize;
-}
-
-static const TypeInfo lm32_uart_info = {
- .name = TYPE_LM32_UART,
- .parent = TYPE_SYS_BUS_DEVICE,
- .instance_size = sizeof(LM32UartState),
- .instance_init = lm32_uart_init,
- .class_init = lm32_uart_class_init,
-};
-
-static void lm32_uart_register_types(void)
-{
- type_register_static(&lm32_uart_info);
-}
-
-type_init(lm32_uart_register_types)
diff --git a/hw/char/meson.build b/hw/char/meson.build
index da5bb8b762..8361d0ab28 100644
--- a/hw/char/meson.build
+++ b/hw/char/meson.build
@@ -8,9 +8,6 @@ softmmu_ss.add(when: 'CONFIG_IMX', if_true: files('imx_serial.c'))
softmmu_ss.add(when: 'CONFIG_IPACK', if_true: files('ipoctal232.c'))
softmmu_ss.add(when: 'CONFIG_ISA_BUS', if_true: files('parallel-isa.c'))
softmmu_ss.add(when: 'CONFIG_ISA_DEBUG', if_true: files('debugcon.c'))
-softmmu_ss.add(when: 'CONFIG_LM32_DEVICES', if_true: files('lm32_juart.c'))
-softmmu_ss.add(when: 'CONFIG_LM32_DEVICES', if_true: files('lm32_uart.c'))
-softmmu_ss.add(when: 'CONFIG_MILKYMIST', if_true: files('milkymist-uart.c'))
softmmu_ss.add(when: 'CONFIG_NRF51_SOC', if_true: files('nrf51_uart.c'))
softmmu_ss.add(when: 'CONFIG_PARALLEL', if_true: files('parallel.c'))
softmmu_ss.add(when: 'CONFIG_PL011', if_true: files('pl011.c'))
@@ -19,6 +16,7 @@ softmmu_ss.add(when: 'CONFIG_SERIAL', if_true: files('serial.c'))
softmmu_ss.add(when: 'CONFIG_SERIAL_ISA', if_true: files('serial-isa.c'))
softmmu_ss.add(when: 'CONFIG_SERIAL_PCI', if_true: files('serial-pci.c'))
softmmu_ss.add(when: 'CONFIG_SERIAL_PCI_MULTI', if_true: files('serial-pci-multi.c'))
+softmmu_ss.add(when: 'CONFIG_SHAKTI', if_true: files('shakti_uart.c'))
softmmu_ss.add(when: 'CONFIG_VIRTIO_SERIAL', if_true: files('virtio-console.c'))
softmmu_ss.add(when: 'CONFIG_XEN', if_true: files('xen_console.c'))
softmmu_ss.add(when: 'CONFIG_XILINX', if_true: files('xilinx_uartlite.c'))
diff --git a/hw/char/milkymist-uart.c b/hw/char/milkymist-uart.c
deleted file mode 100644
index cb1b3470ad..0000000000
--- a/hw/char/milkymist-uart.c
+++ /dev/null
@@ -1,258 +0,0 @@
-/*
- * QEMU model of the Milkymist UART block.
- *
- * 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/>.
- *
- *
- * Specification available at:
- * http://milkymist.walle.cc/socdoc/uart.pdf
- */
-
-#include "qemu/osdep.h"
-#include "hw/irq.h"
-#include "hw/qdev-properties.h"
-#include "hw/qdev-properties-system.h"
-#include "hw/sysbus.h"
-#include "migration/vmstate.h"
-#include "trace.h"
-#include "chardev/char-fe.h"
-#include "qemu/error-report.h"
-#include "qemu/module.h"
-#include "qom/object.h"
-
-enum {
- R_RXTX = 0,
- R_DIV,
- R_STAT,
- R_CTRL,
- R_DBG,
- R_MAX
-};
-
-enum {
- STAT_THRE = (1<<0),
- STAT_RX_EVT = (1<<1),
- STAT_TX_EVT = (1<<2),
-};
-
-enum {
- CTRL_RX_IRQ_EN = (1<<0),
- CTRL_TX_IRQ_EN = (1<<1),
- CTRL_THRU_EN = (1<<2),
-};
-
-enum {
- DBG_BREAK_EN = (1<<0),
-};
-
-#define TYPE_MILKYMIST_UART "milkymist-uart"
-OBJECT_DECLARE_SIMPLE_TYPE(MilkymistUartState, MILKYMIST_UART)
-
-struct MilkymistUartState {
- SysBusDevice parent_obj;
-
- MemoryRegion regs_region;
- CharBackend chr;
- qemu_irq irq;
-
- uint32_t regs[R_MAX];
-};
-
-static void uart_update_irq(MilkymistUartState *s)
-{
- int rx_event = s->regs[R_STAT] & STAT_RX_EVT;
- int tx_event = s->regs[R_STAT] & STAT_TX_EVT;
- int rx_irq_en = s->regs[R_CTRL] & CTRL_RX_IRQ_EN;
- int tx_irq_en = s->regs[R_CTRL] & CTRL_TX_IRQ_EN;
-
- if ((rx_irq_en && rx_event) || (tx_irq_en && tx_event)) {
- trace_milkymist_uart_raise_irq();
- qemu_irq_raise(s->irq);
- } else {
- trace_milkymist_uart_lower_irq();
- qemu_irq_lower(s->irq);
- }
-}
-
-static uint64_t uart_read(void *opaque, hwaddr addr,
- unsigned size)
-{
- MilkymistUartState *s = opaque;
- uint32_t r = 0;
-
- addr >>= 2;
- switch (addr) {
- case R_RXTX:
- r = s->regs[addr];
- break;
- case R_DIV:
- case R_STAT:
- case R_CTRL:
- case R_DBG:
- r = s->regs[addr];
- break;
-
- default:
- error_report("milkymist_uart: read access to unknown register 0x"
- TARGET_FMT_plx, addr << 2);
- break;
- }
-
- trace_milkymist_uart_memory_read(addr << 2, r);
-
- return r;
-}
-
-static void uart_write(void *opaque, hwaddr addr, uint64_t value,
- unsigned size)
-{
- MilkymistUartState *s = opaque;
- unsigned char ch = value;
-
- trace_milkymist_uart_memory_write(addr, value);
-
- addr >>= 2;
- switch (addr) {
- case R_RXTX:
- qemu_chr_fe_write_all(&s->chr, &ch, 1);
- s->regs[R_STAT] |= STAT_TX_EVT;
- break;
- case R_DIV:
- case R_CTRL:
- case R_DBG:
- s->regs[addr] = value;
- break;
-
- case R_STAT:
- /* write one to clear bits */
- s->regs[addr] &= ~(value & (STAT_RX_EVT | STAT_TX_EVT));
- qemu_chr_fe_accept_input(&s->chr);
- break;
-
- default:
- error_report("milkymist_uart: write access to unknown register 0x"
- TARGET_FMT_plx, addr << 2);
- break;
- }
-
- uart_update_irq(s);
-}
-
-static const MemoryRegionOps uart_mmio_ops = {
- .read = uart_read,
- .write = uart_write,
- .valid = {
- .min_access_size = 4,
- .max_access_size = 4,
- },
- .endianness = DEVICE_NATIVE_ENDIAN,
-};
-
-static void uart_rx(void *opaque, const uint8_t *buf, int size)
-{
- MilkymistUartState *s = opaque;
-
- assert(!(s->regs[R_STAT] & STAT_RX_EVT));
-
- s->regs[R_STAT] |= STAT_RX_EVT;
- s->regs[R_RXTX] = *buf;
-
- uart_update_irq(s);
-}
-
-static int uart_can_rx(void *opaque)
-{
- MilkymistUartState *s = opaque;
-
- return !(s->regs[R_STAT] & STAT_RX_EVT);
-}
-
-static void uart_event(void *opaque, QEMUChrEvent event)
-{
-}
-
-static void milkymist_uart_reset(DeviceState *d)
-{
- MilkymistUartState *s = MILKYMIST_UART(d);
- int i;
-
- for (i = 0; i < R_MAX; i++) {
- s->regs[i] = 0;
- }
-
- /* THRE is always set */
- s->regs[R_STAT] = STAT_THRE;
-}
-
-static void milkymist_uart_realize(DeviceState *dev, Error **errp)
-{
- MilkymistUartState *s = MILKYMIST_UART(dev);
-
- qemu_chr_fe_set_handlers(&s->chr, uart_can_rx, uart_rx,
- uart_event, NULL, s, NULL, true);
-}
-
-static void milkymist_uart_init(Object *obj)
-{
- SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
- MilkymistUartState *s = MILKYMIST_UART(obj);
-
- sysbus_init_irq(sbd, &s->irq);
-
- memory_region_init_io(&s->regs_region, OBJECT(s), &uart_mmio_ops, s,
- "milkymist-uart", R_MAX * 4);
- sysbus_init_mmio(sbd, &s->regs_region);
-}
-
-static const VMStateDescription vmstate_milkymist_uart = {
- .name = "milkymist-uart",
- .version_id = 1,
- .minimum_version_id = 1,
- .fields = (VMStateField[]) {
- VMSTATE_UINT32_ARRAY(regs, MilkymistUartState, R_MAX),
- VMSTATE_END_OF_LIST()
- }
-};
-
-static Property milkymist_uart_properties[] = {
- DEFINE_PROP_CHR("chardev", MilkymistUartState, chr),
- DEFINE_PROP_END_OF_LIST(),
-};
-
-static void milkymist_uart_class_init(ObjectClass *klass, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
-
- dc->realize = milkymist_uart_realize;
- dc->reset = milkymist_uart_reset;
- dc->vmsd = &vmstate_milkymist_uart;
- device_class_set_props(dc, milkymist_uart_properties);
-}
-
-static const TypeInfo milkymist_uart_info = {
- .name = TYPE_MILKYMIST_UART,
- .parent = TYPE_SYS_BUS_DEVICE,
- .instance_size = sizeof(MilkymistUartState),
- .instance_init = milkymist_uart_init,
- .class_init = milkymist_uart_class_init,
-};
-
-static void milkymist_uart_register_types(void)
-{
- type_register_static(&milkymist_uart_info);
-}
-
-type_init(milkymist_uart_register_types)
diff --git a/hw/char/shakti_uart.c b/hw/char/shakti_uart.c
new file mode 100644
index 0000000000..6870821325
--- /dev/null
+++ b/hw/char/shakti_uart.c
@@ -0,0 +1,185 @@
+/*
+ * SHAKTI UART
+ *
+ * Copyright (c) 2021 Vijai Kumar K <vijai@behindbytes.com>
+ *
+ * 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.
+ */
+
+#include "qemu/osdep.h"
+#include "hw/char/shakti_uart.h"
+#include "hw/qdev-properties.h"
+#include "hw/qdev-properties-system.h"
+#include "qemu/log.h"
+
+static uint64_t shakti_uart_read(void *opaque, hwaddr addr, unsigned size)
+{
+ ShaktiUartState *s = opaque;
+
+ switch (addr) {
+ case SHAKTI_UART_BAUD:
+ return s->uart_baud;
+ case SHAKTI_UART_RX:
+ qemu_chr_fe_accept_input(&s->chr);
+ s->uart_status &= ~SHAKTI_UART_STATUS_RX_NOT_EMPTY;
+ return s->uart_rx;
+ case SHAKTI_UART_STATUS:
+ return s->uart_status;
+ case SHAKTI_UART_DELAY:
+ return s->uart_delay;
+ case SHAKTI_UART_CONTROL:
+ return s->uart_control;
+ case SHAKTI_UART_INT_EN:
+ return s->uart_interrupt;
+ case SHAKTI_UART_IQ_CYCLES:
+ return s->uart_iq_cycles;
+ case SHAKTI_UART_RX_THRES:
+ return s->uart_rx_threshold;
+ default:
+ /* Also handles TX REG which is write only */
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "%s: Bad offset 0x%"HWADDR_PRIx"\n", __func__, addr);
+ }
+
+ return 0;
+}
+
+static void shakti_uart_write(void *opaque, hwaddr addr,
+ uint64_t data, unsigned size)
+{
+ ShaktiUartState *s = opaque;
+ uint32_t value = data;
+ uint8_t ch;
+
+ switch (addr) {
+ case SHAKTI_UART_BAUD:
+ s->uart_baud = value;
+ break;
+ case SHAKTI_UART_TX:
+ ch = value;
+ qemu_chr_fe_write_all(&s->chr, &ch, 1);
+ s->uart_status &= ~SHAKTI_UART_STATUS_TX_FULL;
+ break;
+ case SHAKTI_UART_STATUS:
+ s->uart_status = value;
+ break;
+ case SHAKTI_UART_DELAY:
+ s->uart_delay = value;
+ break;
+ case SHAKTI_UART_CONTROL:
+ s->uart_control = value;
+ break;
+ case SHAKTI_UART_INT_EN:
+ s->uart_interrupt = value;
+ break;
+ case SHAKTI_UART_IQ_CYCLES:
+ s->uart_iq_cycles = value;
+ break;
+ case SHAKTI_UART_RX_THRES:
+ s->uart_rx_threshold = value;
+ break;
+ default:
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "%s: Bad offset 0x%"HWADDR_PRIx"\n", __func__, addr);
+ }
+}
+
+static const MemoryRegionOps shakti_uart_ops = {
+ .read = shakti_uart_read,
+ .write = shakti_uart_write,
+ .endianness = DEVICE_NATIVE_ENDIAN,
+ .impl = {.min_access_size = 1, .max_access_size = 4},
+ .valid = {.min_access_size = 1, .max_access_size = 4},
+};
+
+static void shakti_uart_reset(DeviceState *dev)
+{
+ ShaktiUartState *s = SHAKTI_UART(dev);
+
+ s->uart_baud = SHAKTI_UART_BAUD_DEFAULT;
+ s->uart_tx = 0x0;
+ s->uart_rx = 0x0;
+ s->uart_status = 0x0000;
+ s->uart_delay = 0x0000;
+ s->uart_control = SHAKTI_UART_CONTROL_DEFAULT;
+ s->uart_interrupt = 0x0000;
+ s->uart_iq_cycles = 0x00;
+ s->uart_rx_threshold = 0x00;
+}
+
+static int shakti_uart_can_receive(void *opaque)
+{
+ ShaktiUartState *s = opaque;
+
+ return !(s->uart_status & SHAKTI_UART_STATUS_RX_NOT_EMPTY);
+}
+
+static void shakti_uart_receive(void *opaque, const uint8_t *buf, int size)
+{
+ ShaktiUartState *s = opaque;
+
+ s->uart_rx = *buf;
+ s->uart_status |= SHAKTI_UART_STATUS_RX_NOT_EMPTY;
+}
+
+static void shakti_uart_realize(DeviceState *dev, Error **errp)
+{
+ ShaktiUartState *sus = SHAKTI_UART(dev);
+ qemu_chr_fe_set_handlers(&sus->chr, shakti_uart_can_receive,
+ shakti_uart_receive, NULL, NULL, sus, NULL, true);
+}
+
+static void shakti_uart_instance_init(Object *obj)
+{
+ ShaktiUartState *sus = SHAKTI_UART(obj);
+ memory_region_init_io(&sus->mmio,
+ obj,
+ &shakti_uart_ops,
+ sus,
+ TYPE_SHAKTI_UART,
+ 0x1000);
+ sysbus_init_mmio(SYS_BUS_DEVICE(obj), &sus->mmio);
+}
+
+static Property shakti_uart_properties[] = {
+ DEFINE_PROP_CHR("chardev", ShaktiUartState, chr),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void shakti_uart_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ dc->reset = shakti_uart_reset;
+ dc->realize = shakti_uart_realize;
+ device_class_set_props(dc, shakti_uart_properties);
+}
+
+static const TypeInfo shakti_uart_info = {
+ .name = TYPE_SHAKTI_UART,
+ .parent = TYPE_SYS_BUS_DEVICE,
+ .instance_size = sizeof(ShaktiUartState),
+ .class_init = shakti_uart_class_init,
+ .instance_init = shakti_uart_instance_init,
+};
+
+static void shakti_uart_register_types(void)
+{
+ type_register_static(&shakti_uart_info);
+}
+type_init(shakti_uart_register_types)
diff --git a/hw/char/trace-events b/hw/char/trace-events
index 76d52938ea..2e6e6b119a 100644
--- a/hw/char/trace-events
+++ b/hw/char/trace-events
@@ -35,23 +35,6 @@ grlib_apbuart_event(int event) "event:%d"
grlib_apbuart_writel_unknown(uint64_t addr, uint32_t value) "addr 0x%"PRIx64" value 0x%x"
grlib_apbuart_readl_unknown(uint64_t addr) "addr 0x%"PRIx64
-# lm32_juart.c
-lm32_juart_get_jtx(uint32_t value) "jtx 0x%08x"
-lm32_juart_set_jtx(uint32_t value) "jtx 0x%08x"
-lm32_juart_get_jrx(uint32_t value) "jrx 0x%08x"
-lm32_juart_set_jrx(uint32_t value) "jrx 0x%08x"
-
-# lm32_uart.c
-lm32_uart_memory_write(uint32_t addr, uint32_t value) "addr 0x%08x value 0x%08x"
-lm32_uart_memory_read(uint32_t addr, uint32_t value) "addr 0x%08x value 0x%08x"
-lm32_uart_irq_state(int level) "irq state %d"
-
-# milkymist-uart.c
-milkymist_uart_memory_read(uint32_t addr, uint32_t value) "addr 0x%08x value 0x%08x"
-milkymist_uart_memory_write(uint32_t addr, uint32_t value) "addr 0x%08x value 0x%08x"
-milkymist_uart_raise_irq(void) "Raise IRQ"
-milkymist_uart_lower_irq(void) "Lower IRQ"
-
# escc.c
escc_put_queue(char channel, int b) "channel %c put: 0x%02x"
escc_get_queue(char channel, int val) "channel %c get 0x%02x"
@@ -90,6 +73,10 @@ cmsdk_apb_uart_set_params(int speed) "CMSDK APB UART: params set to %d 8N1"
nrf51_uart_read(uint64_t addr, uint64_t r, unsigned int size) "addr 0x%" PRIx64 " value 0x%" PRIx64 " size %u"
nrf51_uart_write(uint64_t addr, uint64_t value, unsigned int size) "addr 0x%" PRIx64 " value 0x%" PRIx64 " size %u"
+# shakti_uart.c
+shakti_uart_read(uint64_t addr, uint16_t r, unsigned int size) "addr 0x%" PRIx64 " value 0x%" PRIx16 " size %u"
+shakti_uart_write(uint64_t addr, uint64_t value, unsigned int size) "addr 0x%" PRIx64 " value 0x%" PRIx64 " size %u"
+
# exynos4210_uart.c
exynos_uart_dmabusy(uint32_t channel) "UART%d: DMA busy (Rx buffer empty)"
exynos_uart_dmaready(uint32_t channel) "UART%d: DMA ready"
generated by cgit v1.2.3 (git 2.26.2) at 2025-02-11 17:01:18 +0000