diff options
Diffstat (limited to 'hw/syborg_virtio.c')
| -rw-r--r-- | hw/syborg_virtio.c | 309 |
1 files changed, 0 insertions, 309 deletions
diff --git a/hw/syborg_virtio.c b/hw/syborg_virtio.c deleted file mode 100644 index 3bb10b5c70..0000000000 --- a/hw/syborg_virtio.c +++ /dev/null @@ -1,309 +0,0 @@ -/* - * Virtio Syborg bindings - * - * Copyright (c) 2009 CodeSourcery - * - * 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 "syborg.h" -#include "sysbus.h" -#include "virtio.h" -#include "virtio-net.h" - -//#define DEBUG_SYBORG_VIRTIO - -#ifdef DEBUG_SYBORG_VIRTIO -#define DPRINTF(fmt, ...) \ -do { printf("syborg_virtio: " fmt , ## __VA_ARGS__); } while (0) -#define BADF(fmt, ...) \ -do { fprintf(stderr, "syborg_virtio: error: " fmt , ## __VA_ARGS__); \ - exit(1);} while (0) -#else -#define DPRINTF(fmt, ...) do {} while(0) -#define BADF(fmt, ...) \ -do { fprintf(stderr, "syborg_virtio: error: " fmt , ## __VA_ARGS__);} while (0) -#endif - -enum { - SYBORG_VIRTIO_ID = 0, - SYBORG_VIRTIO_DEVTYPE = 1, - SYBORG_VIRTIO_HOST_FEATURES = 2, - SYBORG_VIRTIO_GUEST_FEATURES = 3, - SYBORG_VIRTIO_QUEUE_BASE = 4, - SYBORG_VIRTIO_QUEUE_NUM = 5, - SYBORG_VIRTIO_QUEUE_SEL = 6, - SYBORG_VIRTIO_QUEUE_NOTIFY = 7, - SYBORG_VIRTIO_STATUS = 8, - SYBORG_VIRTIO_INT_ENABLE = 9, - SYBORG_VIRTIO_INT_STATUS = 10 -}; - -#define SYBORG_VIRTIO_CONFIG 0x100 - -/* Device independent interface. */ - -typedef struct { - SysBusDevice busdev; - VirtIODevice *vdev; - MemoryRegion iomem; - qemu_irq irq; - uint32_t int_enable; - uint32_t id; - NICConf nic; - uint32_t host_features; - virtio_net_conf net; -} SyborgVirtIOProxy; - -static uint32_t syborg_virtio_readl(void *opaque, target_phys_addr_t offset) -{ - SyborgVirtIOProxy *s = opaque; - VirtIODevice *vdev = s->vdev; - uint32_t ret; - - DPRINTF("readl 0x%x\n", (int)offset); - if (offset >= SYBORG_VIRTIO_CONFIG) { - return virtio_config_readl(vdev, offset - SYBORG_VIRTIO_CONFIG); - } - switch(offset >> 2) { - case SYBORG_VIRTIO_ID: - ret = SYBORG_ID_VIRTIO; - break; - case SYBORG_VIRTIO_DEVTYPE: - ret = s->id; - break; - case SYBORG_VIRTIO_HOST_FEATURES: - ret = s->host_features; - break; - case SYBORG_VIRTIO_GUEST_FEATURES: - ret = vdev->guest_features; - break; - case SYBORG_VIRTIO_QUEUE_BASE: - ret = virtio_queue_get_addr(vdev, vdev->queue_sel); - break; - case SYBORG_VIRTIO_QUEUE_NUM: - ret = virtio_queue_get_num(vdev, vdev->queue_sel); - break; - case SYBORG_VIRTIO_QUEUE_SEL: - ret = vdev->queue_sel; - break; - case SYBORG_VIRTIO_STATUS: - ret = vdev->status; - break; - case SYBORG_VIRTIO_INT_ENABLE: - ret = s->int_enable; - break; - case SYBORG_VIRTIO_INT_STATUS: - ret = vdev->isr; - break; - default: - BADF("Bad read offset 0x%x\n", (int)offset); - return 0; - } - return ret; -} - -static void syborg_virtio_writel(void *opaque, target_phys_addr_t offset, - uint32_t value) -{ - SyborgVirtIOProxy *s = opaque; - VirtIODevice *vdev = s->vdev; - - DPRINTF("writel 0x%x = 0x%x\n", (int)offset, value); - if (offset >= SYBORG_VIRTIO_CONFIG) { - return virtio_config_writel(vdev, offset - SYBORG_VIRTIO_CONFIG, - value); - } - switch (offset >> 2) { - case SYBORG_VIRTIO_GUEST_FEATURES: - if (vdev->set_features) - vdev->set_features(vdev, value); - vdev->guest_features = value; - break; - case SYBORG_VIRTIO_QUEUE_BASE: - if (value == 0) - virtio_reset(vdev); - else - virtio_queue_set_addr(vdev, vdev->queue_sel, value); - break; - case SYBORG_VIRTIO_QUEUE_SEL: - if (value < VIRTIO_PCI_QUEUE_MAX) - vdev->queue_sel = value; - break; - case SYBORG_VIRTIO_QUEUE_NOTIFY: - if (value < VIRTIO_PCI_QUEUE_MAX) { - virtio_queue_notify(vdev, value); - } - break; - case SYBORG_VIRTIO_STATUS: - virtio_set_status(vdev, value & 0xFF); - if (vdev->status == 0) - virtio_reset(vdev); - break; - case SYBORG_VIRTIO_INT_ENABLE: - s->int_enable = value; - virtio_update_irq(vdev); - break; - case SYBORG_VIRTIO_INT_STATUS: - vdev->isr &= ~value; - virtio_update_irq(vdev); - break; - default: - BADF("Bad write offset 0x%x\n", (int)offset); - break; - } -} - -static uint32_t syborg_virtio_readw(void *opaque, target_phys_addr_t offset) -{ - SyborgVirtIOProxy *s = opaque; - VirtIODevice *vdev = s->vdev; - - DPRINTF("readw 0x%x\n", (int)offset); - if (offset >= SYBORG_VIRTIO_CONFIG) { - return virtio_config_readw(vdev, offset - SYBORG_VIRTIO_CONFIG); - } - BADF("Bad halfword read offset 0x%x\n", (int)offset); - return -1; -} - -static void syborg_virtio_writew(void *opaque, target_phys_addr_t offset, - uint32_t value) -{ - SyborgVirtIOProxy *s = opaque; - VirtIODevice *vdev = s->vdev; - - DPRINTF("writew 0x%x = 0x%x\n", (int)offset, value); - if (offset >= SYBORG_VIRTIO_CONFIG) { - return virtio_config_writew(vdev, offset - SYBORG_VIRTIO_CONFIG, - value); - } - BADF("Bad halfword write offset 0x%x\n", (int)offset); -} - -static uint32_t syborg_virtio_readb(void *opaque, target_phys_addr_t offset) -{ - SyborgVirtIOProxy *s = opaque; - VirtIODevice *vdev = s->vdev; - - DPRINTF("readb 0x%x\n", (int)offset); - if (offset >= SYBORG_VIRTIO_CONFIG) { - return virtio_config_readb(vdev, offset - SYBORG_VIRTIO_CONFIG); - } - BADF("Bad byte read offset 0x%x\n", (int)offset); - return -1; -} - -static void syborg_virtio_writeb(void *opaque, target_phys_addr_t offset, - uint32_t value) -{ - SyborgVirtIOProxy *s = opaque; - VirtIODevice *vdev = s->vdev; - - DPRINTF("writeb 0x%x = 0x%x\n", (int)offset, value); - if (offset >= SYBORG_VIRTIO_CONFIG) { - return virtio_config_writeb(vdev, offset - SYBORG_VIRTIO_CONFIG, - value); - } - BADF("Bad byte write offset 0x%x\n", (int)offset); -} - -static const MemoryRegionOps syborg_virtio_ops = { - .old_mmio = { - .read = { syborg_virtio_readb, syborg_virtio_readw, syborg_virtio_readl }, - .write = { syborg_virtio_writeb, syborg_virtio_writew, syborg_virtio_writel }, - }, - .endianness = DEVICE_NATIVE_ENDIAN, -}; - -static void syborg_virtio_update_irq(void *opaque, uint16_t vector) -{ - SyborgVirtIOProxy *proxy = opaque; - int level; - - level = proxy->int_enable & proxy->vdev->isr; - DPRINTF("IRQ %d\n", level); - qemu_set_irq(proxy->irq, level != 0); -} - -static unsigned syborg_virtio_get_features(void *opaque) -{ - SyborgVirtIOProxy *proxy = opaque; - return proxy->host_features; -} - -static VirtIOBindings syborg_virtio_bindings = { - .notify = syborg_virtio_update_irq, - .get_features = syborg_virtio_get_features, -}; - -static int syborg_virtio_init(SyborgVirtIOProxy *proxy, VirtIODevice *vdev) -{ - proxy->vdev = vdev; - - /* Don't support multiple vectors */ - proxy->vdev->nvectors = 0; - sysbus_init_irq(&proxy->busdev, &proxy->irq); - memory_region_init_io(&proxy->iomem, &syborg_virtio_ops, proxy, - "virtio", 0x1000); - sysbus_init_mmio(&proxy->busdev, &proxy->iomem); - - proxy->id = ((uint32_t)0x1af4 << 16) | vdev->device_id; - - qemu_register_reset(virtio_reset, vdev); - - virtio_bind_device(vdev, &syborg_virtio_bindings, proxy); - proxy->host_features |= (0x1 << VIRTIO_F_NOTIFY_ON_EMPTY); - proxy->host_features = vdev->get_features(vdev, proxy->host_features); - return 0; -} - -/* Device specific bindings. */ - -static int syborg_virtio_net_init(SysBusDevice *dev) -{ - VirtIODevice *vdev; - SyborgVirtIOProxy *proxy = FROM_SYSBUS(SyborgVirtIOProxy, dev); - - vdev = virtio_net_init(&dev->qdev, &proxy->nic, &proxy->net); - return syborg_virtio_init(proxy, vdev); -} - -static SysBusDeviceInfo syborg_virtio_net_info = { - .init = syborg_virtio_net_init, - .qdev.name = "syborg,virtio-net", - .qdev.size = sizeof(SyborgVirtIOProxy), - .qdev.props = (Property[]) { - DEFINE_NIC_PROPERTIES(SyborgVirtIOProxy, nic), - DEFINE_VIRTIO_NET_FEATURES(SyborgVirtIOProxy, host_features), - DEFINE_PROP_UINT32("x-txtimer", SyborgVirtIOProxy, - net.txtimer, TX_TIMER_INTERVAL), - DEFINE_PROP_INT32("x-txburst", SyborgVirtIOProxy, - net.txburst, TX_BURST), - DEFINE_PROP_STRING("tx", SyborgVirtIOProxy, net.tx), - DEFINE_PROP_END_OF_LIST(), - } -}; - -static void syborg_virtio_register_devices(void) -{ - sysbus_register_withprop(&syborg_virtio_net_info); -} - -device_init(syborg_virtio_register_devices) |