[bsp/qemu-virt64-aarch64] Add VirtIO-Console and GPIO driver (#6150)

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GUI 2022-07-08 02:11:19 +08:00 committed by GitHub
parent b01c2b8a5a
commit 07a2e8c32f
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GPG Key ID: 4AEE18F83AFDEB23
24 changed files with 1417 additions and 35 deletions

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@ -435,6 +435,7 @@ CONFIG_RT_LWIP_USING_PING=y
# CONFIG_PKG_USING_RAPIDJSON is not set
# CONFIG_PKG_USING_JSMN is not set
# CONFIG_PKG_USING_AGILE_JSMN is not set
# CONFIG_PKG_USING_PARSON is not set
#
# XML: Extensible Markup Language
@ -548,15 +549,6 @@ CONFIG_RT_LWIP_USING_PING=y
# CONFIG_PKG_USING_RT_KPRINTF_THREADSAFE is not set
# CONFIG_PKG_USING_RT_VSNPRINTF_FULL is not set
#
# POSIX extension functions
#
# CONFIG_PKG_USING_POSIX_GETLINE is not set
# CONFIG_PKG_USING_POSIX_WCWIDTH is not set
# CONFIG_PKG_USING_POSIX_ITOA is not set
# CONFIG_PKG_USING_POSIX_STRINGS is not set
# CONFIG_PKG_USING_POSIX_CTYPES is not set
#
# acceleration: Assembly language or algorithmic acceleration packages
#
@ -622,6 +614,7 @@ CONFIG_RT_LWIP_USING_PING=y
# CONFIG_PKG_USING_REALTEK_AMEBA is not set
# CONFIG_PKG_USING_SHT2X is not set
# CONFIG_PKG_USING_SHT3X is not set
# CONFIG_PKG_USING_ADT74XX is not set
# CONFIG_PKG_USING_AS7341 is not set
# CONFIG_PKG_USING_STM32_SDIO is not set
# CONFIG_PKG_USING_ICM20608 is not set
@ -779,8 +772,10 @@ CONFIG_BSP_USING_UART=y
CONFIG_RT_USING_UART0=y
CONFIG_BSP_USING_RTC=y
CONFIG_BSP_USING_ALARM=y
CONFIG_BSP_USING_PIN=y
CONFIG_BSP_USING_VIRTIO_BLK=y
CONFIG_BSP_USING_VIRTIO_NET=y
CONFIG_BSP_USING_VIRTIO_CONSOLE=y
CONFIG_BSP_USING_VIRTIO_GPU=y
CONFIG_BSP_USING_VIRTIO_INPUT=y
CONFIG_BSP_USING_GIC=y

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@ -45,13 +45,20 @@ Hi, this is RT-Thread!!
msh />
```
Use VirtIO-Console in new terminal by:
````
telnet 127.0.0.1 4321
````
## 4. Condition
| Driver | Condition | Remark |
| ------ | --------- | ------ |
| UART | Support | UART0 |
| RTC | Support | - |
| GPIO | Support | - |
| VIRTIO BLK | Support | - |
| VIRTIO NET | Support | - |
| VIRTIO Console | Support | - |
| VIRTIO GPU | Support | 2D |
| VIRTIO Input | Support | Keyboard, Mouse, Tablet |

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@ -46,13 +46,20 @@ Hi, this is RT-Thread!!
msh />
```
如果需要使用VirtIO-Console请在新终端使用以下命令连接控制台
```
telnet 127.0.0.1 4321
```
## 4.支持情况
| 驱动 | 支持情况 | 备注 |
| ------ | ---- | :------: |
| UART | 支持 | UART0 |
| RTC | 支持 | - |
| GPIO | 支持 | - |
| VIRTIO BLK | 支持 | - |
| VIRTIO NET | 支持 | - |
| VIRTIO Console | 支持 | - |
| VIRTIO GPU | 支持 | 2D |
| VIRTIO Input | 支持 | Keyboard, Mouse, Tablet |

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@ -0,0 +1,65 @@
/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2021-11-11 GuEe-GUI the first version
*/
#include <rtthread.h>
#include <virtio_console.h>
int console_init()
{
rt_err_t status = RT_EOK;
rt_device_t device = rt_device_find("virtio-console0");
if (device != RT_NULL && rt_device_open(device, 0) == RT_EOK)
{
/* Create vport0p1 */
status = rt_device_control(device, VIRTIO_DEVICE_CTRL_CONSOLE_PORT_CREATE, RT_NULL);
}
if (device != RT_NULL)
{
rt_device_close(device);
}
return status;
}
INIT_ENV_EXPORT(console_init);
#ifdef FINSH_USING_MSH
static int console(int argc, char **argv)
{
rt_err_t result = RT_EOK;
if (argc > 1)
{
if (!rt_strcmp(argv[1], "set"))
{
rt_kprintf("console change to %s\n", argv[2]);
rt_console_set_device(argv[2]);
finsh_set_device(argv[2]);
}
else
{
rt_kprintf("Unknown command. Please enter 'console' for help\n");
result = -RT_ERROR;
}
}
else
{
rt_kprintf("Usage: \n");
rt_kprintf("console set <name> - change console by name\n");
result = -RT_ERROR;
}
return result;
}
MSH_CMD_EXPORT(console, set console name);
#endif /* FINSH_USING_MSH */

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@ -0,0 +1,33 @@
/*
* Copyright (c) 2006-2022, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2022-6-30 GuEe-GUI first version
*/
#include <rthw.h>
#include <rtthread.h>
#include <rtdevice.h>
#ifdef RT_USING_PIN
void qemu_gpio3_key_poweroff(void *args)
{
rt_kprintf("\nYou power off the machine.\n");
rt_hw_cpu_shutdown();
}
int pin_init()
{
rt_pin_attach_irq(3, PIN_IRQ_MODE_FALLING, qemu_gpio3_key_poweroff, RT_NULL);
rt_pin_irq_enable(3, RT_TRUE);
return 0;
}
INIT_ENV_EXPORT(pin_init);
#endif /* RT_USING_PIN */

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@ -24,6 +24,11 @@ menu "AARCH64 qemu virt64 configs"
default n
endif
config BSP_USING_PIN
bool "Using PIN"
select RT_USING_PIN
default y
config BSP_USING_VIRTIO_BLK
bool "Using VirtIO BLK"
default y
@ -32,6 +37,10 @@ menu "AARCH64 qemu virt64 configs"
bool "Using VirtIO NET"
default y
config BSP_USING_VIRTIO_CONSOLE
bool "Using VirtIO Console"
default y
config BSP_USING_VIRTIO_GPU
bool "Using VirtIO GPU"
default y

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@ -29,6 +29,7 @@ struct mem_desc platform_mem_desc[] =
{
{0x40000000, 0x80000000, 0x40000000, NORMAL_MEM},
{PL031_RTC_BASE, PL031_RTC_BASE + 0x1000, PL031_RTC_BASE, DEVICE_MEM},
{PL061_GPIO_BASE, PL061_GPIO_BASE + 0x1000, PL061_GPIO_BASE, DEVICE_MEM},
{PL011_UART0_BASE, PL011_UART0_BASE + 0x1000, PL011_UART0_BASE, DEVICE_MEM},
{VIRTIO_MMIO_BASE, VIRTIO_MMIO_BASE + VIRTIO_MAX_NR * VIRTIO_MMIO_SIZE, VIRTIO_MMIO_BASE, DEVICE_MEM},
#ifdef BSP_USING_GICV2
@ -95,6 +96,13 @@ void poweroff(void)
}
MSH_CMD_EXPORT(poweroff, poweroff...);
void rt_hw_cpu_shutdown()
{
rt_kprintf("shutdown...\n");
poweroff();
}
void reboot(void)
{
arm_psci_system_reboot();

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@ -0,0 +1,314 @@
/*
* Copyright (c) 2006-2022, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2022-6-30 GuEe-GUI first version
*/
#include <rthw.h>
#include <rtthread.h>
#include <rtdevice.h>
#include <board.h>
#include "drv_gpio.h"
#ifdef BSP_USING_PIN
#define GPIODIR 0x400
#define GPIOIS 0x404
#define GPIOIBE 0x408
#define GPIOIEV 0x40c
#define GPIOIE 0x410
#define GPIORIS 0x414
#define GPIOMIS 0x418
#define GPIOIC 0x41c
#define BIT(x) (1 << (x))
#define PL061_GPIO_NR 8
static struct pl061
{
#ifdef RT_USING_SMP
struct rt_spinlock spinlock;
#endif
void (*(hdr[PL061_GPIO_NR]))(void *args);
void *args[PL061_GPIO_NR];
} _pl061;
rt_inline rt_uint8_t pl061_read8(rt_ubase_t offset)
{
return HWREG8(PL061_GPIO_BASE + offset);
}
rt_inline void pl061_write8(rt_ubase_t offset, rt_uint8_t value)
{
HWREG8(PL061_GPIO_BASE + offset) = value;
}
static void pl061_pin_mode(struct rt_device *device, rt_base_t pin, rt_base_t mode)
{
int value;
rt_uint8_t gpiodir;
#ifdef RT_USING_SMP
rt_base_t level;
#endif
if (pin < 0 || pin >= PL061_GPIO_NR)
{
return;
}
#ifdef RT_USING_SMP
level = rt_spin_lock_irqsave(&_pl061.spinlock);
#endif
switch (mode)
{
case PIN_MODE_OUTPUT:
value = !!pl061_read8((BIT(pin + 2)));
pl061_write8(BIT(pin + 2), 0 << pin);
gpiodir = pl061_read8(GPIODIR);
gpiodir |= BIT(pin);
pl061_write8(GPIODIR, gpiodir);
/*
* gpio value is set again, because pl061 doesn't allow to set value of
* a gpio pin before configuring it in OUT mode.
*/
pl061_write8((BIT(pin + 2)), value << pin);
break;
case PIN_MODE_INPUT:
gpiodir = pl061_read8(GPIODIR);
gpiodir &= ~(BIT(pin));
pl061_write8(GPIODIR, gpiodir);
break;
}
#ifdef RT_USING_SMP
rt_spin_unlock_irqrestore(&_pl061.spinlock, level);
#endif
}
static void pl061_pin_write(struct rt_device *device, rt_base_t pin, rt_base_t value)
{
pl061_write8(BIT(pin + 2), !!value << pin);
}
static int pl061_pin_read(struct rt_device *device, rt_base_t pin)
{
return !!pl061_read8((BIT(pin + 2)));
}
static rt_err_t pl061_pin_attach_irq(struct rt_device *device, rt_int32_t pin, rt_uint32_t mode, void (*hdr)(void *args), void *args)
{
rt_uint8_t gpiois, gpioibe, gpioiev;
rt_uint8_t bit = BIT(mode);
#ifdef RT_USING_SMP
rt_base_t level;
#endif
if (pin < 0 || pin >= PL061_GPIO_NR)
{
return -RT_EINVAL;
}
#ifdef RT_USING_SMP
level = rt_spin_lock_irqsave(&_pl061.spinlock);
#endif
gpioiev = pl061_read8(GPIOIEV);
gpiois = pl061_read8(GPIOIS);
gpioibe = pl061_read8(GPIOIBE);
if (mode == PIN_IRQ_MODE_HIGH_LEVEL || pin == PIN_IRQ_MODE_LOW_LEVEL)
{
rt_bool_t polarity = (mode == PIN_IRQ_MODE_HIGH_LEVEL);
/* Disable edge detection */
gpioibe &= ~bit;
/* Enable level detection */
gpiois |= bit;
/* Select polarity */
if (polarity)
{
gpioiev |= bit;
}
else
{
gpioiev &= ~bit;
}
}
else if (mode == PIN_IRQ_MODE_RISING_FALLING)
{
/* Disable level detection */
gpiois &= ~bit;
/* Select both edges, setting this makes GPIOEV be ignored */
gpioibe |= bit;
}
else if (mode == PIN_IRQ_MODE_RISING || mode == PIN_IRQ_MODE_FALLING)
{
rt_bool_t rising = (mode == PIN_IRQ_MODE_RISING);
/* Disable level detection */
gpiois &= ~bit;
/* Clear detection on both edges */
gpioibe &= ~bit;
/* Select edge */
if (rising)
{
gpioiev |= bit;
}
else
{
gpioiev &= ~bit;
}
}
else
{
/* No trigger: disable everything */
gpiois &= ~bit;
gpioibe &= ~bit;
gpioiev &= ~bit;
}
pl061_write8(GPIOIS, gpiois);
pl061_write8(GPIOIBE, gpioibe);
pl061_write8(GPIOIEV, gpioiev);
_pl061.hdr[pin] = hdr;
_pl061.args[pin] = args;
#ifdef RT_USING_SMP
rt_spin_unlock_irqrestore(&_pl061.spinlock, level);
#endif
return RT_EOK;
}
static rt_err_t pl061_pin_detach_irq(struct rt_device *device, rt_int32_t pin)
{
if (pin < 0 || pin >= PL061_GPIO_NR)
{
return -RT_EINVAL;
}
_pl061.hdr[pin] = RT_NULL;
_pl061.args[pin] = RT_NULL;
return RT_EOK;
}
static rt_err_t pl061_pin_irq_enable(struct rt_device *device, rt_base_t pin, rt_uint32_t enabled)
{
rt_uint8_t mask = BIT(pin);
rt_uint8_t gpioie;
#ifdef RT_USING_SMP
rt_base_t level;
#endif
if (pin < 0 || pin >= PL061_GPIO_NR)
{
return -RT_EINVAL;
}
#ifdef RT_USING_SMP
level = rt_spin_lock_irqsave(&_pl061.spinlock);
#endif
if (enabled)
{
gpioie = pl061_read8(GPIOIE) | mask;
}
else
{
gpioie = pl061_read8(GPIOIE) & ~mask;
}
pl061_write8(GPIOIE, gpioie);
#ifdef RT_USING_SMP
rt_spin_unlock_irqrestore(&_pl061.spinlock, level);
#endif
return RT_EOK;
}
static const struct rt_pin_ops ops =
{
pl061_pin_mode,
pl061_pin_write,
pl061_pin_read,
pl061_pin_attach_irq,
pl061_pin_detach_irq,
pl061_pin_irq_enable,
RT_NULL,
};
static void rt_hw_gpio_isr(int irqno, void *param)
{
rt_uint8_t mask;
unsigned long pending;
#ifdef RT_USING_SMP
rt_base_t level;
#endif
pending = pl061_read8(GPIOMIS);
if (pending)
{
rt_base_t pin;
for (pin = 0; pin < PL061_GPIO_NR; ++pin)
{
if (pending & BIT(pin))
{
mask |= BIT(pin);
if (_pl061.hdr[pin] != RT_NULL)
{
_pl061.hdr[pin](_pl061.args[pin]);
}
}
}
}
#ifdef RT_USING_SMP
level = rt_spin_lock_irqsave(&_pl061.spinlock);
#endif
pl061_write8(GPIOIC, mask);
#ifdef RT_USING_SMP
rt_spin_unlock_irqrestore(&_pl061.spinlock, level);
#endif
}
int rt_hw_gpio_init(void)
{
#ifdef RT_USING_SMP
rt_spin_lock_init(&_pl061.spinlock);
#endif
rt_device_pin_register("gpio", &ops, RT_NULL);
rt_hw_interrupt_install(PL061_GPIO_IRQNUM, rt_hw_gpio_isr, RT_NULL, "gpio");
rt_hw_interrupt_umask(PL061_GPIO_IRQNUM);
return 0;
}
INIT_DEVICE_EXPORT(rt_hw_gpio_init);
#endif /* BSP_USING_PIN */

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@ -0,0 +1,16 @@
/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2022-6-30 GuEe-GUI first version
*/
#ifndef DRV_GPIO_H__
#define DRV_GPIO_H__
int rt_hw_gpio_init(void);
#endif

View File

@ -17,6 +17,9 @@
#ifdef BSP_USING_VIRTIO_NET
#include <virtio_net.h>
#endif
#ifdef BSP_USING_VIRTIO_CONSOLE
#include <virtio_console.h>
#endif
#ifdef BSP_USING_VIRTIO_GPU
#include <virtio_gpu.h>
#endif
@ -34,6 +37,9 @@ static virtio_device_init_handler virtio_device_init_handlers[] =
#ifdef BSP_USING_VIRTIO_NET
[VIRTIO_DEVICE_ID_NET] = rt_virtio_net_init,
#endif
#ifdef BSP_USING_VIRTIO_CONSOLE
[VIRTIO_DEVICE_ID_CONSOLE] = rt_virtio_console_init,
#endif
#ifdef BSP_USING_VIRTIO_GPU
[VIRTIO_DEVICE_ID_GPU] = rt_virtio_gpu_init,
#endif

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@ -23,6 +23,11 @@
#define PL031_RTC_SIZE 0x00001000
#define PL031_RTC_IRQNUM (32 + 2)
/* GPIO */
#define PL061_GPIO_BASE 0x09030000
#define PL061_GPIO_SIZE 0x00001000
#define PL061_GPIO_IRQNUM (32 + 7)
/* VirtIO */
#define VIRTIO_MMIO_BASE 0x0a000000
#define VIRTIO_MMIO_SIZE 0x00000200

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@ -54,11 +54,42 @@ void virtio_interrupt_ack(struct virtio_device *dev)
}
}
rt_bool_t virtio_has_feature(struct virtio_device *dev, rt_uint32_t feature_bit)
{
_virtio_dev_check(dev);
return !!(dev->mmio_config->device_features & (1UL << feature_bit));
}
rt_err_t virtio_queues_alloc(struct virtio_device *dev, rt_size_t queues_num)
{
_virtio_dev_check(dev);
dev->queues = rt_malloc(sizeof(struct virtq) * queues_num);
if (dev->queues != RT_NULL)
{
dev->queues_num = queues_num;
return RT_EOK;
}
return -RT_ENOMEM;
}
void virtio_queues_free(struct virtio_device *dev)
{
if (dev->queues != RT_NULL)
{
dev->queues_num = 0;
rt_free(dev->queues);
}
}
rt_err_t virtio_queue_init(struct virtio_device *dev, rt_uint32_t queue_index, rt_size_t ring_size)
{
int i;
void *pages;
rt_ubase_t pages_paddr;
rt_size_t pages_total_size;
struct virtq *queue;
@ -90,17 +121,16 @@ rt_err_t virtio_queue_init(struct virtio_device *dev, rt_uint32_t queue_index, r
}
rt_memset(pages, 0, pages_total_size);
pages_paddr = VIRTIO_VA2PA(pages);
dev->mmio_config->guest_page_size = VIRTIO_PAGE_SIZE;
dev->mmio_config->queue_sel = queue_index;
dev->mmio_config->queue_num = ring_size;
dev->mmio_config->queue_align = VIRTIO_PAGE_SIZE;
dev->mmio_config->queue_pfn = pages_paddr >> VIRTIO_PAGE_SHIFT;
dev->mmio_config->queue_pfn = VIRTIO_VA2PA(pages) >> VIRTIO_PAGE_SHIFT;
queue->num = ring_size;
queue->desc = (struct virtq_desc *)pages_paddr;
queue->avail = (struct virtq_avail *)(pages_paddr + VIRTQ_DESC_TOTAL_SIZE(ring_size));
queue->desc = (struct virtq_desc *)((rt_ubase_t)pages);
queue->avail = (struct virtq_avail *)(((rt_ubase_t)pages) + VIRTQ_DESC_TOTAL_SIZE(ring_size));
queue->used = (struct virtq_used *)VIRTIO_PAGE_ALIGN(
(rt_ubase_t)&queue->avail->ring[ring_size] + VIRTQ_AVAIL_RES_SIZE);
@ -175,7 +205,7 @@ rt_uint16_t virtio_alloc_desc(struct virtio_device *dev, rt_uint32_t queue_index
_virtio_dev_check(dev);
RT_ASSERT(queue_index < RT_USING_VIRTIO_QUEUE_MAX_NR);
RT_ASSERT(queue_index < dev->queues_num);
queue = &dev->queues[queue_index];
@ -206,7 +236,7 @@ void virtio_free_desc(struct virtio_device *dev, rt_uint32_t queue_index, rt_uin
queue = &dev->queues[queue_index];
RT_ASSERT(queue_index + 1 < RT_USING_VIRTIO_QUEUE_MAX_NR);
RT_ASSERT(queue_index < dev->queues_num);
RT_ASSERT(!queue->free[desc_index]);
queue->desc[desc_index].addr = 0;

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@ -19,10 +19,6 @@
#define RT_USING_VIRTIO_VERSION 0x1
#endif
#ifndef RT_USING_VIRTIO_QUEUE_MAX_NR
#define RT_USING_VIRTIO_QUEUE_MAX_NR 4
#endif
#include <virtio_mmio.h>
#include <virtio_queue.h>
@ -102,7 +98,9 @@ struct virtio_device
{
rt_uint32_t irq;
struct virtq queues[RT_USING_VIRTIO_QUEUE_MAX_NR];
struct virtq *queues;
rt_size_t queues_num;
union
{
rt_ubase_t *mmio_base;
@ -122,7 +120,10 @@ void virtio_reset_device(struct virtio_device *dev);
void virtio_status_acknowledge_driver(struct virtio_device *dev);
void virtio_status_driver_ok(struct virtio_device *dev);
void virtio_interrupt_ack(struct virtio_device *dev);
rt_bool_t virtio_has_feature(struct virtio_device *dev, rt_uint32_t feature_bit);
rt_err_t virtio_queues_alloc(struct virtio_device *dev, rt_size_t queues_num);
void virtio_queues_free(struct virtio_device *dev);
rt_err_t virtio_queue_init(struct virtio_device *dev, rt_uint32_t queue_index, rt_size_t ring_size);
void virtio_queue_destroy(struct virtio_device *dev, rt_uint32_t queue_index);
void virtio_queue_notify(struct virtio_device *dev, rt_uint32_t queue_index);

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@ -29,6 +29,14 @@ static void virtio_blk_rw(struct virtio_blk_device *virtio_blk_dev, rt_off_t pos
/* Allocate 3 descriptors */
while (virtio_alloc_desc_chain(virtio_dev, 0, 3, idx))
{
#ifdef RT_USING_SMP
rt_spin_unlock_irqrestore(&virtio_dev->spinlock, level);
#endif
rt_thread_yield();
#ifdef RT_USING_SMP
level = rt_spin_lock_irqsave(&virtio_dev->spinlock);
#endif
}
virtio_blk_dev->info[idx[0]].status = 0xff;
@ -150,7 +158,6 @@ static void virtio_blk_isr(int irqno, void *param)
/* Done with buffer */
virtio_blk_dev->info[id].valid = RT_FALSE;
rt_thread_yield();
queue->used_idx++;
}
@ -200,12 +207,15 @@ rt_err_t rt_virtio_blk_init(rt_ubase_t *mmio_base, rt_uint32_t irq)
/* Tell device that feature negotiation is complete and we're completely ready */
virtio_status_driver_ok(virtio_dev);
if (virtio_queues_alloc(virtio_dev, 1) != RT_EOK)
{
goto _alloc_fail;
}
/* Initialize queue 0 */
if (virtio_queue_init(virtio_dev, 0, VIRTIO_BLK_QUEUE_RING_SIZE) != RT_EOK)
{
rt_free(virtio_blk_dev);
return -RT_ENOMEM;
goto _alloc_fail;
}
virtio_blk_dev->parent.type = RT_Device_Class_Block;
@ -217,5 +227,14 @@ rt_err_t rt_virtio_blk_init(rt_ubase_t *mmio_base, rt_uint32_t irq)
rt_hw_interrupt_umask(irq);
return rt_device_register((rt_device_t)virtio_blk_dev, dev_name, RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_REMOVABLE);
_alloc_fail:
if (virtio_blk_dev != RT_NULL)
{
virtio_queues_free(virtio_dev);
rt_free(virtio_blk_dev);
}
return -RT_ENOMEM;
}
#endif /* BSP_USING_VIRTIO_BLK */

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@ -0,0 +1,734 @@
/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2021-11-11 GuEe-GUI the first version
*/
#include <rthw.h>
#include <rtthread.h>
#include <cpuport.h>
#ifdef BSP_USING_VIRTIO_CONSOLE
#include <virtio_console.h>
struct port_device
{
struct rt_device parent;
rt_list_t node;
rt_uint32_t port_id;
rt_bool_t rx_notify;
rt_bool_t need_destroy;
struct virtio_console_device *console;
struct virtq *queue_rx, *queue_tx;
rt_uint32_t queue_rx_index, queue_tx_index;
#ifdef RT_USING_SMP
struct rt_spinlock spinlock_rx, spinlock_tx;
#endif
struct
{
char rx_char, tx_char;
} info[VIRTIO_CONSOLE_QUEUE_SIZE];
};
static void virtio_console_send_ctrl(struct virtio_console_device *virtio_console_dev,
struct virtio_console_control *ctrl)
{
rt_uint16_t id;
void *addr;
struct virtio_device *virtio_dev = &virtio_console_dev->virtio_dev;
struct virtq *queue_ctrl_tx;
#ifdef RT_USING_SMP
rt_base_t level = rt_spin_lock_irqsave(&virtio_dev->spinlock);
#endif
queue_ctrl_tx = &virtio_dev->queues[VIRTIO_CONSOLE_QUEUE_CTRL_TX];
id = queue_ctrl_tx->avail->idx % queue_ctrl_tx->num;
addr = &virtio_console_dev->info[id].tx_ctrl;
rt_memcpy(addr, ctrl, sizeof(struct virtio_console_control));
virtio_free_desc(virtio_dev, VIRTIO_CONSOLE_QUEUE_CTRL_TX, id);
virtio_fill_desc(virtio_dev, VIRTIO_CONSOLE_QUEUE_CTRL_TX, id,
VIRTIO_VA2PA(addr), sizeof(struct virtio_console_control), 0, 0);
virtio_submit_chain(virtio_dev, VIRTIO_CONSOLE_QUEUE_CTRL_TX, id);
virtio_queue_notify(virtio_dev, VIRTIO_CONSOLE_QUEUE_CTRL_TX);
virtio_alloc_desc(virtio_dev, VIRTIO_CONSOLE_QUEUE_CTRL_TX);
#ifdef RT_USING_SMP
rt_spin_unlock_irqrestore(&virtio_dev->spinlock, level);
#endif
}
static rt_err_t virtio_console_port_create(struct virtio_console_device *virtio_console_dev,
const struct rt_device_ops *ops)
{
rt_uint32_t port_id;
char dev_name[RT_NAME_MAX];
struct port_device *port_dev, *prev_port_dev = RT_NULL;
struct virtio_device *virtio_dev = &virtio_console_dev->virtio_dev;
if (virtio_console_dev->port_nr > 0 && !virtio_has_feature(virtio_dev, VIRTIO_CONSOLE_F_MULTIPORT))
{
return -RT_ENOSYS;
}
if (virtio_console_dev->port_nr >= virtio_console_dev->max_port_nr)
{
return -RT_EFULL;
}
port_id = 0;
/* The port device list is always ordered, so just find next number for id */
rt_list_for_each_entry(port_dev, &virtio_console_dev->port_head, node)
{
if (port_dev->port_id != port_id)
{
break;
}
++port_id;
prev_port_dev = port_dev;
}
port_dev = rt_malloc(sizeof(struct port_device));
if (port_dev == RT_NULL)
{
return -RT_ENOMEM;
}
port_dev->parent.type = RT_Device_Class_Char;
port_dev->parent.ops = ops;
port_dev->parent.rx_indicate = RT_NULL;
port_dev->parent.tx_complete = RT_NULL;
rt_list_init(&port_dev->node);
port_dev->port_id = port_id;
port_dev->need_destroy = RT_FALSE;
port_dev->rx_notify = RT_TRUE;
port_dev->console = virtio_console_dev;
port_dev->queue_rx_index = VIRTIO_CONSOLE_PORT_QUEUE_INDEX(port_dev->port_id, VIRTIO_CONSOLE_QUEUE_DATA_RX);
port_dev->queue_tx_index = VIRTIO_CONSOLE_PORT_QUEUE_INDEX(port_dev->port_id, VIRTIO_CONSOLE_QUEUE_DATA_TX);
port_dev->queue_rx = &virtio_dev->queues[port_dev->queue_rx_index];
port_dev->queue_tx = &virtio_dev->queues[port_dev->queue_tx_index];
#ifdef RT_USING_SMP
rt_spin_lock_init(&port_dev->spinlock_rx);
rt_spin_lock_init(&port_dev->spinlock_tx);
#endif
rt_snprintf(dev_name, RT_NAME_MAX, "vport%dp%d", virtio_console_dev->console_id, port_id);
if (rt_device_register((rt_device_t)port_dev, dev_name, RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX) != RT_EOK)
{
rt_free(port_dev);
return -RT_ERROR;
}
if (prev_port_dev != RT_NULL)
{
rt_list_insert_after(&prev_port_dev->node, &port_dev->node);
}
else
{
/* Port0 */
rt_list_insert_after(&virtio_console_dev->port_head, &port_dev->node);
}
virtio_console_dev->port_nr++;
return RT_EOK;
}
static void virtio_console_port_destroy(struct virtio_console_device *virtio_console_dev,
struct port_device *port_dev)
{
struct virtio_console_control set_ctrl;
set_ctrl.id = port_dev->port_id;
set_ctrl.event = VIRTIO_CONSOLE_PORT_OPEN;
set_ctrl.value = 0;
virtio_console_send_ctrl(virtio_console_dev, &set_ctrl);
virtio_console_dev->port_nr--;
rt_list_remove(&port_dev->node);
rt_device_unregister((rt_device_t)port_dev);
rt_free(port_dev);
}
static rt_err_t virtio_console_port_init(rt_device_t dev)
{
rt_uint16_t id;
rt_uint16_t idx[VIRTIO_CONSOLE_QUEUE_SIZE];
rt_uint16_t rx_queue_index, tx_queue_index;
struct port_device *port_dev = (struct port_device *)dev;
struct virtio_console_device *virtio_console_dev = port_dev->console;
struct virtio_device *virtio_dev = &virtio_console_dev->virtio_dev;
struct virtq *queue_rx, *queue_tx;
rx_queue_index = VIRTIO_CONSOLE_PORT_QUEUE_INDEX(port_dev->port_id, VIRTIO_CONSOLE_QUEUE_DATA_RX);
tx_queue_index = VIRTIO_CONSOLE_PORT_QUEUE_INDEX(port_dev->port_id, VIRTIO_CONSOLE_QUEUE_DATA_TX);
queue_rx = &virtio_dev->queues[rx_queue_index];
queue_tx = &virtio_dev->queues[tx_queue_index];
virtio_alloc_desc_chain(virtio_dev, rx_queue_index, queue_rx->num, idx);
virtio_alloc_desc_chain(virtio_dev, tx_queue_index, queue_tx->num, idx);
for (id = 0; id < queue_rx->num; ++id)
{
void *addr = &port_dev->info[id].rx_char;
virtio_fill_desc(virtio_dev, rx_queue_index, id,
VIRTIO_VA2PA(addr), sizeof(char), VIRTQ_DESC_F_WRITE, 0);
queue_rx->avail->ring[id] = id;
}
rt_hw_dsb();
queue_rx->avail->flags = 0;
queue_rx->avail->idx = queue_rx->num;
queue_rx->used_idx = queue_rx->used->idx;
queue_tx->avail->flags = VIRTQ_AVAIL_F_NO_INTERRUPT;
queue_tx->avail->idx = 0;
virtio_queue_notify(virtio_dev, rx_queue_index);
if (virtio_has_feature(virtio_dev, VIRTIO_CONSOLE_F_MULTIPORT))
{
struct virtio_console_control set_ctrl;
set_ctrl.id = VIRTIO_CONSOLE_PORT_BAD_ID;
set_ctrl.event = VIRTIO_CONSOLE_DEVICE_READY;
set_ctrl.value = 1;
virtio_console_send_ctrl(virtio_console_dev, &set_ctrl);
}
return RT_EOK;
}
static rt_err_t virtio_console_port_open(rt_device_t dev, rt_uint16_t oflag)
{
struct port_device *port_dev = (struct port_device *)dev;
/* Can't use by others, just support only one */
if (port_dev->parent.ref_count > 1)
{
return -RT_EBUSY;
}
if (port_dev->port_id == 0 && virtio_has_feature(&port_dev->console->virtio_dev, VIRTIO_CONSOLE_F_MULTIPORT))
{
/* Port0 is reserve in multiport */
return -RT_ERROR;
}
port_dev->rx_notify = RT_TRUE;
return RT_EOK;
}
static rt_err_t virtio_console_port_close(rt_device_t dev)
{
struct port_device *port_dev = (struct port_device *)dev;
if (port_dev->need_destroy)
{
virtio_console_port_destroy(port_dev->console, port_dev);
/*
* We released the device memory in virtio_console_port_destroy,
* rt_device_close has not finished yet, make the return value
* to empty so that rt_device_close will not access the device memory.
*/
return -RT_EEMPTY;
}
port_dev->rx_notify = RT_FALSE;
return RT_EOK;
}
static rt_size_t virtio_console_port_read(rt_device_t dev, rt_off_t pos, void *buffer, rt_size_t size)
{
rt_off_t i = 0;
rt_uint16_t id;
rt_uint32_t len;
struct port_device *port_dev = (struct port_device *)dev;
struct virtio_device *virtio_dev = &port_dev->console->virtio_dev;
rt_uint32_t queue_rx_index = port_dev->queue_rx_index;
struct virtq *queue_rx = port_dev->queue_rx;
#ifdef RT_USING_SMP
rt_base_t level = rt_spin_lock_irqsave(&port_dev->spinlock_rx);
#endif
while (i < size)
{
if (queue_rx->used_idx == queue_rx->used->idx)
{
break;
}
rt_hw_dsb();
id = queue_rx->used->ring[queue_rx->used_idx % queue_rx->num].id;
len = queue_rx->used->ring[queue_rx->used_idx % queue_rx->num].len;
if (len > sizeof(char))
{
rt_kprintf("%s: Receive buffer's size = %u is too big!\n", port_dev->parent.parent.name, len);
len = sizeof(char);
}
*((char *)buffer + i) = port_dev->info[id].rx_char;
queue_rx->used_idx++;
virtio_submit_chain(virtio_dev, queue_rx_index, id);
virtio_queue_notify(virtio_dev, queue_rx_index);
i += len;
}
#ifdef RT_USING_SMP
rt_spin_unlock_irqrestore(&port_dev->spinlock_rx, level);
#endif
size = i;
return size;
}
static rt_size_t virtio_console_port_write(rt_device_t dev, rt_off_t pos, const void *buffer, rt_size_t size)
{
char ch = 0;
rt_off_t i = 0;
rt_uint16_t id;
struct port_device *port_dev = (struct port_device *)dev;
struct virtio_device *virtio_dev = &port_dev->console->virtio_dev;
rt_uint32_t queue_tx_index = port_dev->queue_tx_index;
struct virtq *queue_tx = port_dev->queue_tx;
#ifdef RT_USING_SMP
rt_base_t level = rt_spin_lock_irqsave(&port_dev->spinlock_tx);
#endif
while (i < size || ch == '\r')
{
id = queue_tx->avail->idx % queue_tx->num;
/* Keep the way until 'new line' are unified */
if (ch != '\r')
{
ch = *((const char *)buffer + i);
}
else
{
i -= sizeof(char);
}
port_dev->info[id].tx_char = ch;
ch = (ch == '\n' ? '\r' : 0);
virtio_free_desc(virtio_dev, queue_tx_index, id);
virtio_fill_desc(virtio_dev, queue_tx_index, id,
VIRTIO_VA2PA(&port_dev->info[id].tx_char), sizeof(char), 0, 0);
virtio_submit_chain(virtio_dev, queue_tx_index, id);
virtio_queue_notify(virtio_dev, queue_tx_index);
virtio_alloc_desc(virtio_dev, queue_tx_index);
i += sizeof(char);
}
#ifdef RT_USING_SMP
rt_spin_unlock_irqrestore(&port_dev->spinlock_tx, level);
#endif
return size;
}
static rt_err_t virtio_console_port_control(rt_device_t dev, int cmd, void *args)
{
rt_err_t status = RT_EOK;
struct port_device *port_dev = (struct port_device *)dev;
switch (cmd)
{
case RT_DEVICE_CTRL_CLR_INT:
/* Disable RX */
port_dev->rx_notify = RT_FALSE;
break;
case RT_DEVICE_CTRL_SET_INT:
/* Enable RX */
port_dev->rx_notify = RT_TRUE;
break;
case VIRTIO_DEVICE_CTRL_CONSOLE_PORT_DESTROY:
{
port_dev->need_destroy = RT_TRUE;
port_dev->rx_notify = RT_FALSE;
}
break;
default:
status = -RT_EINVAL;
break;
}
return status;
}
const static struct rt_device_ops virtio_console_port_ops =
{
virtio_console_port_init,
virtio_console_port_open,
virtio_console_port_close,
virtio_console_port_read,
virtio_console_port_write,
virtio_console_port_control
};
static rt_err_t virtio_console_init(rt_device_t dev)
{
struct virtio_console_device *virtio_console_dev = (struct virtio_console_device *)dev;
struct virtio_device *virtio_dev = &virtio_console_dev->virtio_dev;
if (virtio_has_feature(virtio_dev, VIRTIO_CONSOLE_F_MULTIPORT))
{
rt_uint16_t id;
rt_uint16_t idx[VIRTIO_CONSOLE_QUEUE_SIZE];
struct virtq *queue_ctrl_rx, *queue_ctrl_tx;
queue_ctrl_rx = &virtio_dev->queues[VIRTIO_CONSOLE_QUEUE_CTRL_RX];
queue_ctrl_tx = &virtio_dev->queues[VIRTIO_CONSOLE_QUEUE_CTRL_TX];
virtio_alloc_desc_chain(virtio_dev, VIRTIO_CONSOLE_QUEUE_CTRL_RX, queue_ctrl_rx->num, idx);
virtio_alloc_desc_chain(virtio_dev, VIRTIO_CONSOLE_QUEUE_CTRL_TX, queue_ctrl_tx->num, idx);
for (id = 0; id < queue_ctrl_rx->num; ++id)
{
void *addr = &virtio_console_dev->info[id].rx_ctrl;
virtio_fill_desc(virtio_dev, VIRTIO_CONSOLE_QUEUE_CTRL_RX, id,
VIRTIO_VA2PA(addr), sizeof(struct virtio_console_control), VIRTQ_DESC_F_WRITE, 0);
queue_ctrl_rx->avail->ring[id] = id;
}
rt_hw_dsb();
queue_ctrl_rx->avail->flags = 0;
queue_ctrl_rx->avail->idx = queue_ctrl_rx->num;
queue_ctrl_rx->used_idx = queue_ctrl_rx->used->idx;
queue_ctrl_tx->avail->flags = VIRTQ_AVAIL_F_NO_INTERRUPT;
queue_ctrl_tx->avail->idx = 0;
virtio_queue_notify(virtio_dev, VIRTIO_CONSOLE_QUEUE_CTRL_RX);
}
return virtio_console_port_create(virtio_console_dev, &virtio_console_port_ops);
}
static rt_err_t virtio_console_control(rt_device_t dev, int cmd, void *args)
{
rt_err_t status = RT_EOK;
struct virtio_console_device *virtio_console_dev = (struct virtio_console_device *)dev;
switch (cmd)
{
case VIRTIO_DEVICE_CTRL_CONSOLE_PORT_CREATE:
status = virtio_console_port_create(virtio_console_dev, &virtio_console_port_ops);
break;
default:
status = -RT_EINVAL;
break;
}
return status;
}
const static struct rt_device_ops virtio_console_ops =
{
virtio_console_init,
RT_NULL,
RT_NULL,
RT_NULL,
RT_NULL,
virtio_console_control
};
static void virtio_console_isr(int irqno, void *param)
{
rt_uint32_t id;
rt_uint32_t len;
struct port_device *port_dev;
struct virtio_console_device *virtio_console_dev = (struct virtio_console_device *)param;
struct virtio_device *virtio_dev = &virtio_console_dev->virtio_dev;
const char *dev_name = virtio_console_dev->parent.parent.name;
#ifdef RT_USING_SMP
rt_base_t level = rt_spin_lock_irqsave(&virtio_dev->spinlock);
#endif
virtio_interrupt_ack(virtio_dev);
rt_hw_dsb();
do {
struct virtq *queue_rx;
struct virtio_console_control *ctrl, set_ctrl;
if (!virtio_has_feature(virtio_dev, VIRTIO_CONSOLE_F_MULTIPORT))
{
break;
}
queue_rx = &virtio_dev->queues[VIRTIO_CONSOLE_QUEUE_CTRL_RX];
if (queue_rx->used_idx == queue_rx->used->idx)
{
break;
}
rt_hw_dsb();
id = queue_rx->used->ring[queue_rx->used_idx % queue_rx->num].id;
len = queue_rx->used->ring[queue_rx->used_idx % queue_rx->num].len;
queue_rx->used_idx++;
if (len != sizeof(struct virtio_console_control))
{
rt_kprintf("%s: Invalid ctrl!\n", dev_name);
break;
}
ctrl = &virtio_console_dev->info[id].rx_ctrl;
switch (ctrl->event)
{
case VIRTIO_CONSOLE_PORT_ADD:
{
set_ctrl.id = ctrl->id;
set_ctrl.event = VIRTIO_CONSOLE_PORT_READY;
set_ctrl.value = 1;
#ifdef RT_USING_SMP
rt_spin_unlock_irqrestore(&virtio_dev->spinlock, level);
#endif
virtio_console_send_ctrl(virtio_console_dev, &set_ctrl);
#ifdef RT_USING_SMP
level = rt_spin_lock_irqsave(&virtio_dev->spinlock);
#endif
}
break;
case VIRTIO_CONSOLE_PORT_REMOVE:
break;
case VIRTIO_CONSOLE_RESIZE:
break;
case VIRTIO_CONSOLE_PORT_OPEN:
{
set_ctrl.id = ctrl->id;
set_ctrl.event = VIRTIO_CONSOLE_PORT_OPEN;
set_ctrl.value = 1;
#ifdef RT_USING_SMP
rt_spin_unlock_irqrestore(&virtio_dev->spinlock, level);
#endif
virtio_console_send_ctrl(virtio_console_dev, &set_ctrl);
#ifdef RT_USING_SMP
level = rt_spin_lock_irqsave(&virtio_dev->spinlock);
#endif
}
break;
case VIRTIO_CONSOLE_PORT_NAME:
break;
default:
rt_kprintf("%s: Unsupport ctrl[id: %d, event: %d, value: %d]!\n",
dev_name, ctrl->id, ctrl->event, ctrl->value);
break;
}
} while (0);
#ifdef RT_USING_SMP
rt_spin_unlock_irqrestore(&virtio_dev->spinlock, level);
#endif
rt_list_for_each_entry(port_dev, &virtio_console_dev->port_head, node)
{
rt_uint32_t queue_rx_index = port_dev->queue_rx_index;
struct virtq *queue_rx = port_dev->queue_rx;
#ifdef RT_USING_SMP
rt_base_t level = rt_spin_lock_irqsave(&port_dev->spinlock_rx);
#endif
if (queue_rx->used_idx != queue_rx->used->idx)
{
rt_hw_dsb();
id = queue_rx->used->ring[queue_rx->used_idx % queue_rx->num].id;
len = queue_rx->used->ring[queue_rx->used_idx % queue_rx->num].len;
if (port_dev->parent.rx_indicate != RT_NULL && port_dev->rx_notify)
{
#ifdef RT_USING_SMP
rt_spin_unlock_irqrestore(&port_dev->spinlock_rx, level);
#endif
/* rx_indicate call virtio_console_port_read to inc used_idx */
port_dev->parent.rx_indicate(&port_dev->parent, len);
#ifdef RT_USING_SMP
level = rt_spin_lock_irqsave(&port_dev->spinlock_rx);
#endif
}
else
{
queue_rx->used_idx++;
virtio_submit_chain(virtio_dev, queue_rx_index, id);
virtio_queue_notify(virtio_dev, queue_rx_index);
}
}
#ifdef RT_USING_SMP
rt_spin_unlock_irqrestore(&port_dev->spinlock_rx, level);
#endif
}
}
rt_err_t rt_virtio_console_init(rt_ubase_t *mmio_base, rt_uint32_t irq)
{
int i;
rt_size_t queues_num;
static int dev_no = 0;
char dev_name[RT_NAME_MAX];
struct virtio_device *virtio_dev;
struct virtio_console_device *virtio_console_dev;
RT_ASSERT(RT_USING_VIRTIO_CONSOLE_PORT_MAX_NR > 0);
virtio_console_dev = rt_malloc(sizeof(struct virtio_console_device));
if (virtio_console_dev == RT_NULL)
{
goto _alloc_fail;
}
virtio_dev = &virtio_console_dev->virtio_dev;
virtio_dev->irq = irq;
virtio_dev->mmio_base = mmio_base;
virtio_console_dev->config = (struct virtio_console_config *)virtio_dev->mmio_config->config;
#ifdef RT_USING_SMP
rt_spin_lock_init(&virtio_dev->spinlock);
#endif
virtio_reset_device(virtio_dev);
virtio_status_acknowledge_driver(virtio_dev);
virtio_dev->mmio_config->driver_features = virtio_dev->mmio_config->device_features & ~(
(1 << VIRTIO_F_RING_EVENT_IDX) |
(1 << VIRTIO_F_RING_INDIRECT_DESC));
virtio_status_driver_ok(virtio_dev);
if (!virtio_has_feature(virtio_dev, VIRTIO_CONSOLE_F_MULTIPORT))
{
virtio_console_dev->max_port_nr = 1;
queues_num = 2;
}
else
{
if (virtio_console_dev->config->max_nr_ports > RT_USING_VIRTIO_CONSOLE_PORT_MAX_NR)
{
virtio_console_dev->max_port_nr = RT_USING_VIRTIO_CONSOLE_PORT_MAX_NR;
virtio_console_dev->config->max_nr_ports = virtio_console_dev->max_port_nr;
}
else
{
virtio_console_dev->max_port_nr = virtio_console_dev->config->max_nr_ports;
}
queues_num = VIRTIO_CONSOLE_PORT_QUEUE_INDEX(virtio_console_dev->max_port_nr, VIRTIO_CONSOLE_QUEUE_DATA_RX);
}
if (virtio_queues_alloc(virtio_dev, queues_num) != RT_EOK)
{
goto _alloc_fail;
}
for (i = 0; i < virtio_dev->queues_num; ++i)
{
if (virtio_queue_init(virtio_dev, i, VIRTIO_CONSOLE_QUEUE_SIZE) != RT_EOK)
{
for (; i >= 0; --i)
{
virtio_queue_destroy(virtio_dev, i);
}
goto _alloc_fail;
}
}
virtio_console_dev->parent.type = RT_Device_Class_Char;
virtio_console_dev->parent.ops = &virtio_console_ops;
virtio_console_dev->parent.rx_indicate = RT_NULL;
virtio_console_dev->parent.tx_complete = RT_NULL;
virtio_console_dev->console_id = dev_no;
virtio_console_dev->port_nr = 0;
rt_list_init(&virtio_console_dev->port_head);
rt_snprintf(dev_name, RT_NAME_MAX, "virtio-console%d", dev_no++);
rt_hw_interrupt_install(irq, virtio_console_isr, virtio_console_dev, dev_name);
rt_hw_interrupt_umask(irq);
return rt_device_register((rt_device_t)virtio_console_dev, dev_name, RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX);
_alloc_fail:
if (virtio_console_dev != RT_NULL)
{
virtio_queues_free(virtio_dev);
rt_free(virtio_console_dev);
}
return -RT_ENOMEM;
}
#endif /* BSP_USING_VIRTIO_CONSOLE */

View File

@ -0,0 +1,96 @@
/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2021-11-11 GuEe-GUI the first version
*/
#ifndef __VIRTIO_CONSOLE_H__
#define __VIRTIO_CONSOLE_H__
#include <rtdef.h>
#include <virtio.h>
#ifndef RT_USING_VIRTIO_CONSOLE_PORT_MAX_NR
#define RT_USING_VIRTIO_CONSOLE_PORT_MAX_NR 4
#endif
#define VIRTIO_CONSOLE_QUEUE_DATA_RX 0
#define VIRTIO_CONSOLE_QUEUE_DATA_TX 1
#define VIRTIO_CONSOLE_QUEUE_CTRL_RX 2
#define VIRTIO_CONSOLE_QUEUE_CTRL_TX 3
#define VIRTIO_CONSOLE_QUEUE_SIZE 64
/* Every port has data rx & tx, and port0 has ctrl rx & tx in multiport */
#define VIRTIO_CONSOLE_PORT_QUEUE_INDEX(id, queue) ((id) * 2 + (!!(id)) * 2 + (queue))
#define VIRTIO_CONSOLE_PORT_BAD_ID (~(rt_uint32_t)0)
#define VIRTIO_CONSOLE_F_SIZE 0 /* Does host provide console size? */
#define VIRTIO_CONSOLE_F_MULTIPORT 1 /* Does host provide multiple ports? */
#define VIRTIO_CONSOLE_F_EMERG_WRITE 2 /* Does host support emergency write? */
struct virtio_console_config
{
rt_uint16_t cols;
rt_uint16_t rows;
rt_uint32_t max_nr_ports;
rt_uint32_t emerg_wr;
} __attribute__((packed));
struct virtio_console_control
{
rt_uint32_t id; /* Port number */
rt_uint16_t event; /* The kind of control event */
rt_uint16_t value; /* Extra information for the event */
};
enum virtio_console_control_event
{
VIRTIO_CONSOLE_DEVICE_READY = 0,
VIRTIO_CONSOLE_PORT_ADD,
VIRTIO_CONSOLE_PORT_REMOVE,
VIRTIO_CONSOLE_PORT_READY,
VIRTIO_CONSOLE_CONSOLE_PORT,
VIRTIO_CONSOLE_RESIZE,
VIRTIO_CONSOLE_PORT_OPEN,
VIRTIO_CONSOLE_PORT_NAME,
};
struct virtio_console_resize
{
rt_uint16_t cols;
rt_uint16_t rows;
};
struct virtio_console_device
{
struct rt_device parent;
struct virtio_device virtio_dev;
rt_uint32_t console_id;
rt_size_t port_nr;
rt_size_t max_port_nr;
rt_list_t port_head;
struct virtio_console_config *config;
struct
{
struct virtio_console_control rx_ctrl, tx_ctrl;
} info[VIRTIO_CONSOLE_QUEUE_SIZE];
};
rt_err_t rt_virtio_console_init(rt_ubase_t *mmio_base, rt_uint32_t irq);
enum
{
VIRTIO_DEVICE_CTRL_CONSOLE_PORT_CREATE = 0x20,
VIRTIO_DEVICE_CTRL_CONSOLE_PORT_DESTROY,
};
#endif /* __VIRTIO_CONSOLE_H__ */

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@ -74,6 +74,14 @@ static void virtio_gpu_ctrl_send_command(struct virtio_gpu_device *virtio_gpu_de
while (virtio_alloc_desc_chain(virtio_dev, VIRTIO_GPU_QUEUE_CTRL, 2, idx))
{
#ifdef RT_USING_SMP
rt_spin_unlock_irqrestore(&virtio_dev->spinlock, level);
#endif
rt_thread_yield();
#ifdef RT_USING_SMP
level = rt_spin_lock_irqsave(&virtio_dev->spinlock);
#endif
}
rt_hw_dsb();
@ -126,7 +134,17 @@ static void virtio_gpu_cursor_send_command(struct virtio_gpu_device *virtio_gpu_
rt_base_t level = rt_spin_lock_irqsave(&virtio_dev->spinlock);
#endif
id = virtio_alloc_desc(virtio_dev, VIRTIO_GPU_QUEUE_CURSOR);
while ((id = virtio_alloc_desc(virtio_dev, VIRTIO_GPU_QUEUE_CURSOR)) == VIRTQ_INVALID_DESC_ID)
{
#ifdef RT_USING_SMP
rt_spin_unlock_irqrestore(&virtio_dev->spinlock, level);
#endif
rt_thread_yield();
#ifdef RT_USING_SMP
level = rt_spin_lock_irqsave(&virtio_dev->spinlock);
#endif
}
addr = &virtio_gpu_dev->info[id].cursor_cmd;
virtio_gpu_dev->info[id].cursor_valid = RT_TRUE;
@ -806,7 +824,6 @@ static void virtio_gpu_isr(int irqno, void *param)
id = queue_ctrl->used->ring[queue_ctrl->used_idx % queue_ctrl->num].id;
virtio_gpu_dev->info[id].ctrl_valid = RT_FALSE;
rt_thread_yield();
queue_ctrl->used_idx++;
}
@ -817,7 +834,6 @@ static void virtio_gpu_isr(int irqno, void *param)
id = queue_cursor->used->ring[queue_cursor->used_idx % queue_cursor->num].id;
virtio_gpu_dev->info[id].cursor_valid = RT_FALSE;
rt_thread_yield();
queue_cursor->used_idx++;
}
@ -866,6 +882,11 @@ rt_err_t rt_virtio_gpu_init(rt_ubase_t *mmio_base, rt_uint32_t irq)
virtio_status_driver_ok(virtio_dev);
if (virtio_queues_alloc(virtio_dev, 2) != RT_EOK)
{
goto _alloc_fail;
}
if (virtio_queue_init(virtio_dev, VIRTIO_GPU_QUEUE_CTRL, VIRTIO_GPU_QUEUE_SIZE) != RT_EOK)
{
goto _alloc_fail;
@ -896,6 +917,7 @@ _alloc_fail:
if (virtio_gpu_dev != RT_NULL)
{
virtio_queues_free(virtio_dev);
rt_free(virtio_gpu_dev);
}
return -RT_ENOMEM;

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@ -372,6 +372,11 @@ rt_err_t rt_virtio_input_init(rt_ubase_t *mmio_base, rt_uint32_t irq)
virtio_status_driver_ok(virtio_dev);
if (virtio_queues_alloc(virtio_dev, 2) != RT_EOK)
{
goto _alloc_fail;
}
if (virtio_queue_init(virtio_dev, VIRTIO_INPUT_QUEUE_EVENT, VIRTIO_INPUT_EVENT_QUEUE_SIZE) != RT_EOK)
{
goto _alloc_fail;
@ -425,6 +430,7 @@ _alloc_fail:
if (virtio_input_dev != RT_NULL)
{
virtio_queues_free(virtio_dev);
rt_free(virtio_input_dev);
}
return -RT_ENOMEM;

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@ -269,6 +269,11 @@ rt_err_t rt_virtio_net_init(rt_ubase_t *mmio_base, rt_uint32_t irq)
virtio_status_driver_ok(virtio_dev);
if (virtio_queues_alloc(virtio_dev, 2) != RT_EOK)
{
goto _alloc_fail;
}
if (virtio_queue_init(virtio_dev, VIRTIO_NET_QUEUE_RX, VIRTIO_NET_RTX_QUEUE_SIZE) != RT_EOK)
{
goto _alloc_fail;
@ -301,6 +306,7 @@ _alloc_fail:
if (virtio_net_dev != RT_NULL)
{
virtio_queues_free(virtio_dev);
rt_free(virtio_net_dev);
}
return -RT_ENOMEM;

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@ -9,4 +9,5 @@ qemu-system-aarch64 -M virt,gic-version=2 -cpu cortex-a53 -smp 4 -kernel rtthrea
-device virtio-gpu-device,xres=800,yres=600,bus=virtio-mmio-bus.2 ^
-device virtio-keyboard-device,bus=virtio-mmio-bus.3 ^
-device virtio-mouse-device,bus=virtio-mmio-bus.4 ^
-device virtio-tablet-device,bus=virtio-mmio-bus.5
-device virtio-tablet-device,bus=virtio-mmio-bus.5 ^
-device virtio-serial-device -chardev socket,host=127.0.0.1,port=4321,server=on,wait=off,telnet=on,id=console0 -device virtserialport,chardev=console0

View File

@ -7,4 +7,5 @@ qemu-system-aarch64 -M virt,gic-version=2 -cpu cortex-a53 -smp 4 -kernel rtthrea
-device virtio-gpu-device,xres=800,yres=600,bus=virtio-mmio-bus.2 \
-device virtio-keyboard-device,bus=virtio-mmio-bus.3 \
-device virtio-mouse-device,bus=virtio-mmio-bus.4 \
-device virtio-tablet-device,bus=virtio-mmio-bus.5
-device virtio-tablet-device,bus=virtio-mmio-bus.5 \
-device virtio-serial-device -chardev socket,host=127.0.0.1,port=4321,server=on,wait=off,telnet=on,id=console0 -device virtserialport,chardev=console0

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@ -5,4 +5,5 @@ qemu-img create -f raw sd.bin 64M
:run
qemu-system-aarch64 -M virt,gic-version=2 -cpu cortex-a53 -smp 4 -kernel rtthread.elf -nographic ^
-drive if=none,file=sd.bin,format=raw,id=blk0 -device virtio-blk-device,drive=blk0,bus=virtio-mmio-bus.0 ^
-netdev user,id=net0 -device virtio-net-device,netdev=net0,bus=virtio-mmio-bus.1
-netdev user,id=net0 -device virtio-net-device,netdev=net0,bus=virtio-mmio-bus.1 ^
-device virtio-serial-device -chardev socket,host=127.0.0.1,port=4321,server=on,wait=off,telnet=on,id=console0 -device virtserialport,chardev=console0

View File

@ -3,4 +3,5 @@ dd if=/dev/zero of=sd.bin bs=1024 count=65536
fi
qemu-system-aarch64 -M virt,gic-version=2 -cpu cortex-a53 -smp 4 -kernel rtthread.elf -nographic \
-drive if=none,file=sd.bin,format=raw,id=blk0 -device virtio-blk-device,drive=blk0,bus=virtio-mmio-bus.0 \
-netdev user,id=net0 -device virtio-net-device,netdev=net0,bus=virtio-mmio-bus.1
-netdev user,id=net0 -device virtio-net-device,netdev=net0,bus=virtio-mmio-bus.1 \
-device virtio-serial-device -chardev socket,host=127.0.0.1,port=4321,server=on,wait=off,telnet=on,id=console0 -device virtserialport,chardev=console0

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@ -241,9 +241,6 @@
/* enhanced kernel services */
/* POSIX extension functions */
/* acceleration: Assembly language or algorithmic acceleration packages */
@ -276,8 +273,10 @@
#define RT_USING_UART0
#define BSP_USING_RTC
#define BSP_USING_ALARM
#define BSP_USING_PIN
#define BSP_USING_VIRTIO_BLK
#define BSP_USING_VIRTIO_NET
#define BSP_USING_VIRTIO_CONSOLE
#define BSP_USING_VIRTIO_GPU
#define BSP_USING_VIRTIO_INPUT
#define BSP_USING_GIC