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-rw-r--r--hw/stellaris_enet.c449
1 files changed, 0 insertions, 449 deletions
diff --git a/hw/stellaris_enet.c b/hw/stellaris_enet.c
deleted file mode 100644
index bc97280cca..0000000000
--- a/hw/stellaris_enet.c
+++ /dev/null
@@ -1,449 +0,0 @@
-/*
- * Luminary Micro Stellaris Ethernet Controller
- *
- * Copyright (c) 2007 CodeSourcery.
- * Written by Paul Brook
- *
- * This code is licensed under the GPL.
- */
-#include "sysbus.h"
-#include "net.h"
-#include <zlib.h>
-
-//#define DEBUG_STELLARIS_ENET 1
-
-#ifdef DEBUG_STELLARIS_ENET
-#define DPRINTF(fmt, ...) \
-do { printf("stellaris_enet: " fmt , ## __VA_ARGS__); } while (0)
-#define BADF(fmt, ...) \
-do { fprintf(stderr, "stellaris_enet: error: " fmt , ## __VA_ARGS__); exit(1);} while (0)
-#else
-#define DPRINTF(fmt, ...) do {} while(0)
-#define BADF(fmt, ...) \
-do { fprintf(stderr, "stellaris_enet: error: " fmt , ## __VA_ARGS__);} while (0)
-#endif
-
-#define SE_INT_RX 0x01
-#define SE_INT_TXER 0x02
-#define SE_INT_TXEMP 0x04
-#define SE_INT_FOV 0x08
-#define SE_INT_RXER 0x10
-#define SE_INT_MD 0x20
-#define SE_INT_PHY 0x40
-
-#define SE_RCTL_RXEN 0x01
-#define SE_RCTL_AMUL 0x02
-#define SE_RCTL_PRMS 0x04
-#define SE_RCTL_BADCRC 0x08
-#define SE_RCTL_RSTFIFO 0x10
-
-#define SE_TCTL_TXEN 0x01
-#define SE_TCTL_PADEN 0x02
-#define SE_TCTL_CRC 0x04
-#define SE_TCTL_DUPLEX 0x08
-
-typedef struct {
- SysBusDevice busdev;
- uint32_t ris;
- uint32_t im;
- uint32_t rctl;
- uint32_t tctl;
- uint32_t thr;
- uint32_t mctl;
- uint32_t mdv;
- uint32_t mtxd;
- uint32_t mrxd;
- uint32_t np;
- int tx_frame_len;
- int tx_fifo_len;
- uint8_t tx_fifo[2048];
- /* Real hardware has a 2k fifo, which works out to be at most 31 packets.
- We implement a full 31 packet fifo. */
- struct {
- uint8_t data[2048];
- int len;
- } rx[31];
- uint8_t *rx_fifo;
- int rx_fifo_len;
- int next_packet;
- NICState *nic;
- NICConf conf;
- qemu_irq irq;
- MemoryRegion mmio;
-} stellaris_enet_state;
-
-static void stellaris_enet_update(stellaris_enet_state *s)
-{
- qemu_set_irq(s->irq, (s->ris & s->im) != 0);
-}
-
-/* TODO: Implement MAC address filtering. */
-static ssize_t stellaris_enet_receive(NetClientState *nc, const uint8_t *buf, size_t size)
-{
- stellaris_enet_state *s = DO_UPCAST(NICState, nc, nc)->opaque;
- int n;
- uint8_t *p;
- uint32_t crc;
-
- if ((s->rctl & SE_RCTL_RXEN) == 0)
- return -1;
- if (s->np >= 31) {
- DPRINTF("Packet dropped\n");
- return -1;
- }
-
- DPRINTF("Received packet len=%d\n", size);
- n = s->next_packet + s->np;
- if (n >= 31)
- n -= 31;
- s->np++;
-
- s->rx[n].len = size + 6;
- p = s->rx[n].data;
- *(p++) = (size + 6);
- *(p++) = (size + 6) >> 8;
- memcpy (p, buf, size);
- p += size;
- crc = crc32(~0, buf, size);
- *(p++) = crc;
- *(p++) = crc >> 8;
- *(p++) = crc >> 16;
- *(p++) = crc >> 24;
- /* Clear the remaining bytes in the last word. */
- if ((size & 3) != 2) {
- memset(p, 0, (6 - size) & 3);
- }
-
- s->ris |= SE_INT_RX;
- stellaris_enet_update(s);
-
- return size;
-}
-
-static int stellaris_enet_can_receive(NetClientState *nc)
-{
- stellaris_enet_state *s = DO_UPCAST(NICState, nc, nc)->opaque;
-
- if ((s->rctl & SE_RCTL_RXEN) == 0)
- return 1;
-
- return (s->np < 31);
-}
-
-static uint64_t stellaris_enet_read(void *opaque, target_phys_addr_t offset,
- unsigned size)
-{
- stellaris_enet_state *s = (stellaris_enet_state *)opaque;
- uint32_t val;
-
- switch (offset) {
- case 0x00: /* RIS */
- DPRINTF("IRQ status %02x\n", s->ris);
- return s->ris;
- case 0x04: /* IM */
- return s->im;
- case 0x08: /* RCTL */
- return s->rctl;
- case 0x0c: /* TCTL */
- return s->tctl;
- case 0x10: /* DATA */
- if (s->rx_fifo_len == 0) {
- if (s->np == 0) {
- BADF("RX underflow\n");
- return 0;
- }
- s->rx_fifo_len = s->rx[s->next_packet].len;
- s->rx_fifo = s->rx[s->next_packet].data;
- DPRINTF("RX FIFO start packet len=%d\n", s->rx_fifo_len);
- }
- val = s->rx_fifo[0] | (s->rx_fifo[1] << 8) | (s->rx_fifo[2] << 16)
- | (s->rx_fifo[3] << 24);
- s->rx_fifo += 4;
- s->rx_fifo_len -= 4;
- if (s->rx_fifo_len <= 0) {
- s->rx_fifo_len = 0;
- s->next_packet++;
- if (s->next_packet >= 31)
- s->next_packet = 0;
- s->np--;
- DPRINTF("RX done np=%d\n", s->np);
- }
- return val;
- case 0x14: /* IA0 */
- return s->conf.macaddr.a[0] | (s->conf.macaddr.a[1] << 8)
- | (s->conf.macaddr.a[2] << 16) | (s->conf.macaddr.a[3] << 24);
- case 0x18: /* IA1 */
- return s->conf.macaddr.a[4] | (s->conf.macaddr.a[5] << 8);
- case 0x1c: /* THR */
- return s->thr;
- case 0x20: /* MCTL */
- return s->mctl;
- case 0x24: /* MDV */
- return s->mdv;
- case 0x28: /* MADD */
- return 0;
- case 0x2c: /* MTXD */
- return s->mtxd;
- case 0x30: /* MRXD */
- return s->mrxd;
- case 0x34: /* NP */
- return s->np;
- case 0x38: /* TR */
- return 0;
- case 0x3c: /* Undocuented: Timestamp? */
- return 0;
- default:
- hw_error("stellaris_enet_read: Bad offset %x\n", (int)offset);
- return 0;
- }
-}
-
-static void stellaris_enet_write(void *opaque, target_phys_addr_t offset,
- uint64_t value, unsigned size)
-{
- stellaris_enet_state *s = (stellaris_enet_state *)opaque;
-
- switch (offset) {
- case 0x00: /* IACK */
- s->ris &= ~value;
- DPRINTF("IRQ ack %02x/%02x\n", value, s->ris);
- stellaris_enet_update(s);
- /* Clearing TXER also resets the TX fifo. */
- if (value & SE_INT_TXER)
- s->tx_frame_len = -1;
- break;
- case 0x04: /* IM */
- DPRINTF("IRQ mask %02x/%02x\n", value, s->ris);
- s->im = value;
- stellaris_enet_update(s);
- break;
- case 0x08: /* RCTL */
- s->rctl = value;
- if (value & SE_RCTL_RSTFIFO) {
- s->rx_fifo_len = 0;
- s->np = 0;
- stellaris_enet_update(s);
- }
- break;
- case 0x0c: /* TCTL */
- s->tctl = value;
- break;
- case 0x10: /* DATA */
- if (s->tx_frame_len == -1) {
- s->tx_frame_len = value & 0xffff;
- if (s->tx_frame_len > 2032) {
- DPRINTF("TX frame too long (%d)\n", s->tx_frame_len);
- s->tx_frame_len = 0;
- s->ris |= SE_INT_TXER;
- stellaris_enet_update(s);
- } else {
- DPRINTF("Start TX frame len=%d\n", s->tx_frame_len);
- /* The value written does not include the ethernet header. */
- s->tx_frame_len += 14;
- if ((s->tctl & SE_TCTL_CRC) == 0)
- s->tx_frame_len += 4;
- s->tx_fifo_len = 0;
- s->tx_fifo[s->tx_fifo_len++] = value >> 16;
- s->tx_fifo[s->tx_fifo_len++] = value >> 24;
- }
- } else {
- s->tx_fifo[s->tx_fifo_len++] = value;
- s->tx_fifo[s->tx_fifo_len++] = value >> 8;
- s->tx_fifo[s->tx_fifo_len++] = value >> 16;
- s->tx_fifo[s->tx_fifo_len++] = value >> 24;
- if (s->tx_fifo_len >= s->tx_frame_len) {
- /* We don't implement explicit CRC, so just chop it off. */
- if ((s->tctl & SE_TCTL_CRC) == 0)
- s->tx_frame_len -= 4;
- if ((s->tctl & SE_TCTL_PADEN) && s->tx_frame_len < 60) {
- memset(&s->tx_fifo[s->tx_frame_len], 0, 60 - s->tx_frame_len);
- s->tx_fifo_len = 60;
- }
- qemu_send_packet(&s->nic->nc, s->tx_fifo, s->tx_frame_len);
- s->tx_frame_len = -1;
- s->ris |= SE_INT_TXEMP;
- stellaris_enet_update(s);
- DPRINTF("Done TX\n");
- }
- }
- break;
- case 0x14: /* IA0 */
- s->conf.macaddr.a[0] = value;
- s->conf.macaddr.a[1] = value >> 8;
- s->conf.macaddr.a[2] = value >> 16;
- s->conf.macaddr.a[3] = value >> 24;
- break;
- case 0x18: /* IA1 */
- s->conf.macaddr.a[4] = value;
- s->conf.macaddr.a[5] = value >> 8;
- break;
- case 0x1c: /* THR */
- s->thr = value;
- break;
- case 0x20: /* MCTL */
- s->mctl = value;
- break;
- case 0x24: /* MDV */
- s->mdv = value;
- break;
- case 0x28: /* MADD */
- /* ignored. */
- break;
- case 0x2c: /* MTXD */
- s->mtxd = value & 0xff;
- break;
- case 0x30: /* MRXD */
- case 0x34: /* NP */
- case 0x38: /* TR */
- /* Ignored. */
- case 0x3c: /* Undocuented: Timestamp? */
- /* Ignored. */
- break;
- default:
- hw_error("stellaris_enet_write: Bad offset %x\n", (int)offset);
- }
-}
-
-static const MemoryRegionOps stellaris_enet_ops = {
- .read = stellaris_enet_read,
- .write = stellaris_enet_write,
- .endianness = DEVICE_NATIVE_ENDIAN,
-};
-
-static void stellaris_enet_reset(stellaris_enet_state *s)
-{
- s->mdv = 0x80;
- s->rctl = SE_RCTL_BADCRC;
- s->im = SE_INT_PHY | SE_INT_MD | SE_INT_RXER | SE_INT_FOV | SE_INT_TXEMP
- | SE_INT_TXER | SE_INT_RX;
- s->thr = 0x3f;
- s->tx_frame_len = -1;
-}
-
-static void stellaris_enet_save(QEMUFile *f, void *opaque)
-{
- stellaris_enet_state *s = (stellaris_enet_state *)opaque;
- int i;
-
- qemu_put_be32(f, s->ris);
- qemu_put_be32(f, s->im);
- qemu_put_be32(f, s->rctl);
- qemu_put_be32(f, s->tctl);
- qemu_put_be32(f, s->thr);
- qemu_put_be32(f, s->mctl);
- qemu_put_be32(f, s->mdv);
- qemu_put_be32(f, s->mtxd);
- qemu_put_be32(f, s->mrxd);
- qemu_put_be32(f, s->np);
- qemu_put_be32(f, s->tx_frame_len);
- qemu_put_be32(f, s->tx_fifo_len);
- qemu_put_buffer(f, s->tx_fifo, sizeof(s->tx_fifo));
- for (i = 0; i < 31; i++) {
- qemu_put_be32(f, s->rx[i].len);
- qemu_put_buffer(f, s->rx[i].data, sizeof(s->rx[i].data));
-
- }
- qemu_put_be32(f, s->next_packet);
- qemu_put_be32(f, s->rx_fifo - s->rx[s->next_packet].data);
- qemu_put_be32(f, s->rx_fifo_len);
-}
-
-static int stellaris_enet_load(QEMUFile *f, void *opaque, int version_id)
-{
- stellaris_enet_state *s = (stellaris_enet_state *)opaque;
- int i;
-
- if (version_id != 1)
- return -EINVAL;
-
- s->ris = qemu_get_be32(f);
- s->im = qemu_get_be32(f);
- s->rctl = qemu_get_be32(f);
- s->tctl = qemu_get_be32(f);
- s->thr = qemu_get_be32(f);
- s->mctl = qemu_get_be32(f);
- s->mdv = qemu_get_be32(f);
- s->mtxd = qemu_get_be32(f);
- s->mrxd = qemu_get_be32(f);
- s->np = qemu_get_be32(f);
- s->tx_frame_len = qemu_get_be32(f);
- s->tx_fifo_len = qemu_get_be32(f);
- qemu_get_buffer(f, s->tx_fifo, sizeof(s->tx_fifo));
- for (i = 0; i < 31; i++) {
- s->rx[i].len = qemu_get_be32(f);
- qemu_get_buffer(f, s->rx[i].data, sizeof(s->rx[i].data));
-
- }
- s->next_packet = qemu_get_be32(f);
- s->rx_fifo = s->rx[s->next_packet].data + qemu_get_be32(f);
- s->rx_fifo_len = qemu_get_be32(f);
-
- return 0;
-}
-
-static void stellaris_enet_cleanup(NetClientState *nc)
-{
- stellaris_enet_state *s = DO_UPCAST(NICState, nc, nc)->opaque;
-
- unregister_savevm(&s->busdev.qdev, "stellaris_enet", s);
-
- memory_region_destroy(&s->mmio);
-
- g_free(s);
-}
-
-static NetClientInfo net_stellaris_enet_info = {
- .type = NET_CLIENT_OPTIONS_KIND_NIC,
- .size = sizeof(NICState),
- .can_receive = stellaris_enet_can_receive,
- .receive = stellaris_enet_receive,
- .cleanup = stellaris_enet_cleanup,
-};
-
-static int stellaris_enet_init(SysBusDevice *dev)
-{
- stellaris_enet_state *s = FROM_SYSBUS(stellaris_enet_state, dev);
-
- memory_region_init_io(&s->mmio, &stellaris_enet_ops, s, "stellaris_enet",
- 0x1000);
- sysbus_init_mmio(dev, &s->mmio);
- sysbus_init_irq(dev, &s->irq);
- qemu_macaddr_default_if_unset(&s->conf.macaddr);
-
- s->nic = qemu_new_nic(&net_stellaris_enet_info, &s->conf,
- object_get_typename(OBJECT(dev)), dev->qdev.id, s);
- qemu_format_nic_info_str(&s->nic->nc, s->conf.macaddr.a);
-
- stellaris_enet_reset(s);
- register_savevm(&s->busdev.qdev, "stellaris_enet", -1, 1,
- stellaris_enet_save, stellaris_enet_load, s);
- return 0;
-}
-
-static Property stellaris_enet_properties[] = {
- DEFINE_NIC_PROPERTIES(stellaris_enet_state, conf),
- DEFINE_PROP_END_OF_LIST(),
-};
-
-static void stellaris_enet_class_init(ObjectClass *klass, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
- SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
-
- k->init = stellaris_enet_init;
- dc->props = stellaris_enet_properties;
-}
-
-static TypeInfo stellaris_enet_info = {
- .name = "stellaris_enet",
- .parent = TYPE_SYS_BUS_DEVICE,
- .instance_size = sizeof(stellaris_enet_state),
- .class_init = stellaris_enet_class_init,
-};
-
-static void stellaris_enet_register_types(void)
-{
- type_register_static(&stellaris_enet_info);
-}
-
-type_init(stellaris_enet_register_types)
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