From bb756eebdac6fd24e8919e2c43f7d2c8c4091f59 Mon Sep 17 00:00:00 2001 From: RajithaY Date: Tue, 25 Apr 2017 03:31:15 -0700 Subject: Adding qemu as a submodule of KVMFORNFV This Patch includes the changes to add qemu as a submodule to kvmfornfv repo and make use of the updated latest qemu for the execution of all testcase Change-Id: I1280af507a857675c7f81d30c95255635667bdd7 Signed-off-by:RajithaY --- qemu/hw/char/grlib_apbuart.c | 299 ------------------------------------------- 1 file changed, 299 deletions(-) delete mode 100644 qemu/hw/char/grlib_apbuart.c (limited to 'qemu/hw/char/grlib_apbuart.c') diff --git a/qemu/hw/char/grlib_apbuart.c b/qemu/hw/char/grlib_apbuart.c deleted file mode 100644 index 871524c82..000000000 --- a/qemu/hw/char/grlib_apbuart.c +++ /dev/null @@ -1,299 +0,0 @@ -/* - * QEMU GRLIB APB UART Emulator - * - * Copyright (c) 2010-2011 AdaCore - * - * 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/sysbus.h" -#include "sysemu/char.h" - -#include "trace.h" - -#define UART_REG_SIZE 20 /* Size of memory mapped registers */ - -/* UART status register fields */ -#define UART_DATA_READY (1 << 0) -#define UART_TRANSMIT_SHIFT_EMPTY (1 << 1) -#define UART_TRANSMIT_FIFO_EMPTY (1 << 2) -#define UART_BREAK_RECEIVED (1 << 3) -#define UART_OVERRUN (1 << 4) -#define UART_PARITY_ERROR (1 << 5) -#define UART_FRAMING_ERROR (1 << 6) -#define UART_TRANSMIT_FIFO_HALF (1 << 7) -#define UART_RECEIVE_FIFO_HALF (1 << 8) -#define UART_TRANSMIT_FIFO_FULL (1 << 9) -#define UART_RECEIVE_FIFO_FULL (1 << 10) - -/* UART control register fields */ -#define UART_RECEIVE_ENABLE (1 << 0) -#define UART_TRANSMIT_ENABLE (1 << 1) -#define UART_RECEIVE_INTERRUPT (1 << 2) -#define UART_TRANSMIT_INTERRUPT (1 << 3) -#define UART_PARITY_SELECT (1 << 4) -#define UART_PARITY_ENABLE (1 << 5) -#define UART_FLOW_CONTROL (1 << 6) -#define UART_LOOPBACK (1 << 7) -#define UART_EXTERNAL_CLOCK (1 << 8) -#define UART_RECEIVE_FIFO_INTERRUPT (1 << 9) -#define UART_TRANSMIT_FIFO_INTERRUPT (1 << 10) -#define UART_FIFO_DEBUG_MODE (1 << 11) -#define UART_OUTPUT_ENABLE (1 << 12) -#define UART_FIFO_AVAILABLE (1 << 31) - -/* Memory mapped register offsets */ -#define DATA_OFFSET 0x00 -#define STATUS_OFFSET 0x04 -#define CONTROL_OFFSET 0x08 -#define SCALER_OFFSET 0x0C /* not supported */ -#define FIFO_DEBUG_OFFSET 0x10 /* not supported */ - -#define FIFO_LENGTH 1024 - -#define TYPE_GRLIB_APB_UART "grlib,apbuart" -#define GRLIB_APB_UART(obj) \ - OBJECT_CHECK(UART, (obj), TYPE_GRLIB_APB_UART) - -typedef struct UART { - SysBusDevice parent_obj; - - MemoryRegion iomem; - qemu_irq irq; - - CharDriverState *chr; - - /* registers */ - uint32_t status; - uint32_t control; - - /* FIFO */ - char buffer[FIFO_LENGTH]; - int len; - int current; -} UART; - -static int uart_data_to_read(UART *uart) -{ - return uart->current < uart->len; -} - -static char uart_pop(UART *uart) -{ - char ret; - - if (uart->len == 0) { - uart->status &= ~UART_DATA_READY; - return 0; - } - - ret = uart->buffer[uart->current++]; - - if (uart->current >= uart->len) { - /* Flush */ - uart->len = 0; - uart->current = 0; - } - - if (!uart_data_to_read(uart)) { - uart->status &= ~UART_DATA_READY; - } - - return ret; -} - -static void uart_add_to_fifo(UART *uart, - const uint8_t *buffer, - int length) -{ - if (uart->len + length > FIFO_LENGTH) { - abort(); - } - memcpy(uart->buffer + uart->len, buffer, length); - uart->len += length; -} - -static int grlib_apbuart_can_receive(void *opaque) -{ - UART *uart = opaque; - - return FIFO_LENGTH - uart->len; -} - -static void grlib_apbuart_receive(void *opaque, const uint8_t *buf, int size) -{ - UART *uart = opaque; - - if (uart->control & UART_RECEIVE_ENABLE) { - uart_add_to_fifo(uart, buf, size); - - uart->status |= UART_DATA_READY; - - if (uart->control & UART_RECEIVE_INTERRUPT) { - qemu_irq_pulse(uart->irq); - } - } -} - -static void grlib_apbuart_event(void *opaque, int event) -{ - trace_grlib_apbuart_event(event); -} - - -static uint64_t grlib_apbuart_read(void *opaque, hwaddr addr, - unsigned size) -{ - UART *uart = opaque; - - addr &= 0xff; - - /* Unit registers */ - switch (addr) { - case DATA_OFFSET: - case DATA_OFFSET + 3: /* when only one byte read */ - return uart_pop(uart); - - case STATUS_OFFSET: - /* Read Only */ - return uart->status; - - case CONTROL_OFFSET: - return uart->control; - - case SCALER_OFFSET: - /* Not supported */ - return 0; - - default: - trace_grlib_apbuart_readl_unknown(addr); - return 0; - } -} - -static void grlib_apbuart_write(void *opaque, hwaddr addr, - uint64_t value, unsigned size) -{ - UART *uart = opaque; - unsigned char c = 0; - - addr &= 0xff; - - /* Unit registers */ - switch (addr) { - case DATA_OFFSET: - case DATA_OFFSET + 3: /* When only one byte write */ - /* Transmit when character device available and transmitter enabled */ - if ((uart->chr) && (uart->control & UART_TRANSMIT_ENABLE)) { - c = value & 0xFF; - qemu_chr_fe_write(uart->chr, &c, 1); - /* Generate interrupt */ - if (uart->control & UART_TRANSMIT_INTERRUPT) { - qemu_irq_pulse(uart->irq); - } - } - return; - - case STATUS_OFFSET: - /* Read Only */ - return; - - case CONTROL_OFFSET: - uart->control = value; - return; - - case SCALER_OFFSET: - /* Not supported */ - return; - - default: - break; - } - - trace_grlib_apbuart_writel_unknown(addr, value); -} - -static const MemoryRegionOps grlib_apbuart_ops = { - .write = grlib_apbuart_write, - .read = grlib_apbuart_read, - .endianness = DEVICE_NATIVE_ENDIAN, -}; - -static int grlib_apbuart_init(SysBusDevice *dev) -{ - UART *uart = GRLIB_APB_UART(dev); - - qemu_chr_add_handlers(uart->chr, - grlib_apbuart_can_receive, - grlib_apbuart_receive, - grlib_apbuart_event, - uart); - - sysbus_init_irq(dev, &uart->irq); - - memory_region_init_io(&uart->iomem, OBJECT(uart), &grlib_apbuart_ops, uart, - "uart", UART_REG_SIZE); - - sysbus_init_mmio(dev, &uart->iomem); - - return 0; -} - -static void grlib_apbuart_reset(DeviceState *d) -{ - UART *uart = GRLIB_APB_UART(d); - - /* Transmitter FIFO and shift registers are always empty in QEMU */ - uart->status = UART_TRANSMIT_FIFO_EMPTY | UART_TRANSMIT_SHIFT_EMPTY; - /* Everything is off */ - uart->control = 0; - /* Flush receive FIFO */ - uart->len = 0; - uart->current = 0; -} - -static Property grlib_apbuart_properties[] = { - DEFINE_PROP_CHR("chrdev", UART, chr), - DEFINE_PROP_END_OF_LIST(), -}; - -static void grlib_apbuart_class_init(ObjectClass *klass, void *data) -{ - DeviceClass *dc = DEVICE_CLASS(klass); - SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); - - k->init = grlib_apbuart_init; - dc->reset = grlib_apbuart_reset; - dc->props = grlib_apbuart_properties; -} - -static const TypeInfo grlib_apbuart_info = { - .name = TYPE_GRLIB_APB_UART, - .parent = TYPE_SYS_BUS_DEVICE, - .instance_size = sizeof(UART), - .class_init = grlib_apbuart_class_init, -}; - -static void grlib_apbuart_register_types(void) -{ - type_register_static(&grlib_apbuart_info); -} - -type_init(grlib_apbuart_register_types) -- cgit 1.2.3-korg