ef45c9147f
As long as we have no link and we aren't in internal loopback mode, no packet must be sent. Instead, LCAR needs to be set in any active TX descriptor and also CERR in CSR0. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
66 lines
2.1 KiB
C
66 lines
2.1 KiB
C
#define PCNET_IOPORT_SIZE 0x20
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#define PCNET_PNPMMIO_SIZE 0x20
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#define PCNET_LOOPTEST_CRC 1
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#define PCNET_LOOPTEST_NOCRC 2
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#include "memory.h"
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/* BUS CONFIGURATION REGISTERS */
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#define BCR_MSRDA 0
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#define BCR_MSWRA 1
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#define BCR_MC 2
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#define BCR_LNKST 4
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#define BCR_LED1 5
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#define BCR_LED2 6
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#define BCR_LED3 7
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#define BCR_FDC 9
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#define BCR_BSBC 18
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#define BCR_EECAS 19
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#define BCR_SWS 20
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#define BCR_PLAT 22
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#define BCR_TMAULOOP(S) !!((S)->bcr[BCR_MC ] & 0x4000)
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#define BCR_APROMWE(S) !!((S)->bcr[BCR_MC ] & 0x0100)
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#define BCR_DWIO(S) !!((S)->bcr[BCR_BSBC] & 0x0080)
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#define BCR_SSIZE32(S) !!((S)->bcr[BCR_SWS ] & 0x0100)
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#define BCR_SWSTYLE(S) ((S)->bcr[BCR_SWS ] & 0x00FF)
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typedef struct PCNetState_st PCNetState;
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struct PCNetState_st {
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NICState *nic;
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NICConf conf;
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QEMUTimer *poll_timer;
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int rap, isr, lnkst;
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uint32_t rdra, tdra;
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uint8_t prom[16];
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uint16_t csr[128];
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uint16_t bcr[32];
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int xmit_pos;
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uint64_t timer;
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MemoryRegion mmio;
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uint8_t buffer[4096];
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qemu_irq irq;
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void (*phys_mem_read)(void *dma_opaque, target_phys_addr_t addr,
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uint8_t *buf, int len, int do_bswap);
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void (*phys_mem_write)(void *dma_opaque, target_phys_addr_t addr,
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uint8_t *buf, int len, int do_bswap);
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void *dma_opaque;
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int tx_busy;
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int looptest;
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};
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void pcnet_h_reset(void *opaque);
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void pcnet_ioport_writew(void *opaque, uint32_t addr, uint32_t val);
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uint32_t pcnet_ioport_readw(void *opaque, uint32_t addr);
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void pcnet_ioport_writel(void *opaque, uint32_t addr, uint32_t val);
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uint32_t pcnet_ioport_readl(void *opaque, uint32_t addr);
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uint32_t pcnet_bcr_readw(PCNetState *s, uint32_t rap);
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int pcnet_can_receive(VLANClientState *nc);
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ssize_t pcnet_receive(VLANClientState *nc, const uint8_t *buf, size_t size_);
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void pcnet_set_link_status(VLANClientState *nc);
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void pcnet_common_cleanup(PCNetState *d);
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int pcnet_common_init(DeviceState *dev, PCNetState *s, NetClientInfo *info);
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extern const VMStateDescription vmstate_pcnet;
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