* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
-#include <stdlib.h>
-#include <stdio.h>
-#include <stdarg.h>
-#include <string.h>
-#include <getopt.h>
-#include <inttypes.h>
-#include <unistd.h>
-#include <sys/mman.h>
-#include <fcntl.h>
-#include <signal.h>
-#include <time.h>
-#include <sys/time.h>
-#include <malloc.h>
-#include <termios.h>
-#include <sys/poll.h>
-#include <errno.h>
-#include <sys/wait.h>
-#include <netinet/in.h>
-
-#include "cpu.h"
#include "vl.h"
/* debug NE2000 card */
//#define DEBUG_NE2000
-/***********************************************************/
-/* ne2000 emulation */
+#define MAX_ETH_FRAME_SIZE 1514
#define E8390_CMD 0x00 /* The command register (for all pages) */
/* Page 0 register offsets. */
uint8_t curpag;
uint8_t mult[8]; /* multicast mask array */
int irq;
+ NetDriverState *nd;
uint8_t mem[NE2000_MEM_SIZE];
} NE2000State;
-static NE2000State ne2000_state;
-int net_fd = -1;
-
static void ne2000_reset(NE2000State *s)
{
int i;
s->isr = ENISR_RESET;
- s->mem[0] = 0x52;
- s->mem[1] = 0x54;
- s->mem[2] = 0x00;
- s->mem[3] = 0x12;
- s->mem[4] = 0x34;
- s->mem[5] = 0x56;
+ memcpy(s->mem, s->nd->macaddr, 6);
s->mem[14] = 0x57;
s->mem[15] = 0x57;
{
int isr;
isr = s->isr & s->imr;
+#if defined(DEBUG_NE2000)
+ printf("NE2000: Set IRQ line %d to %d (%02x %02x)\n",
+ s->irq, isr ? 1 : 0, s->isr, s->imr);
+#endif
if (isr)
pic_set_irq(s->irq, 1);
else
pic_set_irq(s->irq, 0);
}
-/* return true if the NE2000 can receive more data */
-int ne2000_can_receive(void)
+/* return the max buffer size if the NE2000 can receive more data */
+static int ne2000_can_receive(void *opaque)
{
- NE2000State *s = &ne2000_state;
+ NE2000State *s = opaque;
int avail, index, boundary;
if (s->cmd & E8390_STOP)
avail = (s->stop - s->start) - (index - boundary);
if (avail < (MAX_ETH_FRAME_SIZE + 4))
return 0;
- return 1;
+ return MAX_ETH_FRAME_SIZE;
}
-void ne2000_receive(uint8_t *buf, int size)
+#define MIN_BUF_SIZE 60
+
+static void ne2000_receive(void *opaque, const uint8_t *buf, int size)
{
- NE2000State *s = &ne2000_state;
+ NE2000State *s = opaque;
uint8_t *p;
int total_len, next, avail, len, index;
-
+ uint8_t buf1[60];
+
#if defined(DEBUG_NE2000)
printf("NE2000: received len=%d\n", size);
#endif
+ /* if too small buffer, then expand it */
+ if (size < MIN_BUF_SIZE) {
+ memcpy(buf1, buf, size);
+ memset(buf1 + size, 0, MIN_BUF_SIZE - size);
+ buf = buf1;
+ size = MIN_BUF_SIZE;
+ }
+
index = s->curpag << 8;
/* 4 bytes for header */
total_len = size + 4;
ne2000_update_irq(s);
}
-static void ne2000_ioport_write(CPUState *env, uint32_t addr, uint32_t val)
+static void ne2000_ioport_write(void *opaque, uint32_t addr, uint32_t val)
{
- NE2000State *s = &ne2000_state;
+ NE2000State *s = opaque;
int offset, page;
addr &= 0xf;
ne2000_update_irq(s);
}
if (val & E8390_TRANS) {
- net_send_packet(net_fd, s->mem + (s->tpsr << 8), s->tcnt);
+ net_send_packet(s->nd, s->mem + (s->tpsr << 8), s->tcnt);
/* signal end of transfert */
s->tsr = ENTSR_PTX;
s->isr |= ENISR_TX;
}
}
-static uint32_t ne2000_ioport_read(CPUState *env, uint32_t addr)
+static uint32_t ne2000_ioport_read(void *opaque, uint32_t addr)
{
- NE2000State *s = &ne2000_state;
+ NE2000State *s = opaque;
int offset, page, ret;
addr &= 0xf;
return ret;
}
-static void ne2000_asic_ioport_write(CPUState *env, uint32_t addr, uint32_t val)
+static void ne2000_asic_ioport_write(void *opaque, uint32_t addr, uint32_t val)
{
- NE2000State *s = &ne2000_state;
+ NE2000State *s = opaque;
uint8_t *p;
#ifdef DEBUG_NE2000
}
}
-static uint32_t ne2000_asic_ioport_read(CPUState *env, uint32_t addr)
+static uint32_t ne2000_asic_ioport_read(void *opaque, uint32_t addr)
{
- NE2000State *s = &ne2000_state;
+ NE2000State *s = opaque;
uint8_t *p;
int ret;
return ret;
}
-static void ne2000_reset_ioport_write(CPUState *env, uint32_t addr, uint32_t val)
+static void ne2000_reset_ioport_write(void *opaque, uint32_t addr, uint32_t val)
{
/* nothing to do (end of reset pulse) */
}
-static uint32_t ne2000_reset_ioport_read(CPUState *env, uint32_t addr)
+static uint32_t ne2000_reset_ioport_read(void *opaque, uint32_t addr)
{
- NE2000State *s = &ne2000_state;
+ NE2000State *s = opaque;
ne2000_reset(s);
return 0;
}
-void ne2000_init(int base, int irq)
+void ne2000_init(int base, int irq, NetDriverState *nd)
{
- NE2000State *s = &ne2000_state;
+ NE2000State *s;
- register_ioport_write(base, 16, ne2000_ioport_write, 1);
- register_ioport_read(base, 16, ne2000_ioport_read, 1);
+ s = qemu_mallocz(sizeof(NE2000State));
+ if (!s)
+ return;
+
+ register_ioport_write(base, 16, 1, ne2000_ioport_write, s);
+ register_ioport_read(base, 16, 1, ne2000_ioport_read, s);
- register_ioport_write(base + 0x10, 1, ne2000_asic_ioport_write, 1);
- register_ioport_read(base + 0x10, 1, ne2000_asic_ioport_read, 1);
- register_ioport_write(base + 0x10, 2, ne2000_asic_ioport_write, 2);
- register_ioport_read(base + 0x10, 2, ne2000_asic_ioport_read, 2);
+ register_ioport_write(base + 0x10, 1, 1, ne2000_asic_ioport_write, s);
+ register_ioport_read(base + 0x10, 1, 1, ne2000_asic_ioport_read, s);
+ register_ioport_write(base + 0x10, 2, 2, ne2000_asic_ioport_write, s);
+ register_ioport_read(base + 0x10, 2, 2, ne2000_asic_ioport_read, s);
- register_ioport_write(base + 0x1f, 1, ne2000_reset_ioport_write, 1);
- register_ioport_read(base + 0x1f, 1, ne2000_reset_ioport_read, 1);
+ register_ioport_write(base + 0x1f, 1, 1, ne2000_reset_ioport_write, s);
+ register_ioport_read(base + 0x1f, 1, 1, ne2000_reset_ioport_read, s);
s->irq = irq;
+ s->nd = nd;
ne2000_reset(s);
+
+ qemu_add_fd_read_handler(nd->fd, ne2000_can_receive, ne2000_receive, s);
}
projects / qemu.git / blobdiff