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/*
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* QEMU NE2000 emulation
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*
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* Copyright (c) 2003-2004 Fabrice Bellard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "vl.h" |
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/* debug NE2000 card */
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//#define DEBUG_NE2000
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#define MAX_ETH_FRAME_SIZE 1514 |
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#define E8390_CMD 0x00 /* The command register (for all pages) */ |
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/* Page 0 register offsets. */
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#define EN0_CLDALO 0x01 /* Low byte of current local dma addr RD */ |
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#define EN0_STARTPG 0x01 /* Starting page of ring bfr WR */ |
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#define EN0_CLDAHI 0x02 /* High byte of current local dma addr RD */ |
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#define EN0_STOPPG 0x02 /* Ending page +1 of ring bfr WR */ |
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#define EN0_BOUNDARY 0x03 /* Boundary page of ring bfr RD WR */ |
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#define EN0_TSR 0x04 /* Transmit status reg RD */ |
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#define EN0_TPSR 0x04 /* Transmit starting page WR */ |
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#define EN0_NCR 0x05 /* Number of collision reg RD */ |
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#define EN0_TCNTLO 0x05 /* Low byte of tx byte count WR */ |
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#define EN0_FIFO 0x06 /* FIFO RD */ |
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#define EN0_TCNTHI 0x06 /* High byte of tx byte count WR */ |
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#define EN0_ISR 0x07 /* Interrupt status reg RD WR */ |
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#define EN0_CRDALO 0x08 /* low byte of current remote dma address RD */ |
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#define EN0_RSARLO 0x08 /* Remote start address reg 0 */ |
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#define EN0_CRDAHI 0x09 /* high byte, current remote dma address RD */ |
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#define EN0_RSARHI 0x09 /* Remote start address reg 1 */ |
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#define EN0_RCNTLO 0x0a /* Remote byte count reg WR */ |
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#define EN0_RTL8029ID0 0x0a /* Realtek ID byte #1 RD */ |
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#define EN0_RCNTHI 0x0b /* Remote byte count reg WR */ |
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#define EN0_RTL8029ID1 0x0b /* Realtek ID byte #2 RD */ |
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#define EN0_RSR 0x0c /* rx status reg RD */ |
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#define EN0_RXCR 0x0c /* RX configuration reg WR */ |
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#define EN0_TXCR 0x0d /* TX configuration reg WR */ |
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#define EN0_COUNTER0 0x0d /* Rcv alignment error counter RD */ |
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#define EN0_DCFG 0x0e /* Data configuration reg WR */ |
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#define EN0_COUNTER1 0x0e /* Rcv CRC error counter RD */ |
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#define EN0_IMR 0x0f /* Interrupt mask reg WR */ |
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#define EN0_COUNTER2 0x0f /* Rcv missed frame error counter RD */ |
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#define EN1_PHYS 0x11 |
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#define EN1_CURPAG 0x17 |
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#define EN1_MULT 0x18 |
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#define EN2_STARTPG 0x21 /* Starting page of ring bfr RD */ |
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#define EN2_STOPPG 0x22 /* Ending page +1 of ring bfr RD */ |
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#define EN3_CONFIG0 0x33 |
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#define EN3_CONFIG1 0x34 |
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#define EN3_CONFIG2 0x35 |
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#define EN3_CONFIG3 0x36 |
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/* Register accessed at EN_CMD, the 8390 base addr. */
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#define E8390_STOP 0x01 /* Stop and reset the chip */ |
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#define E8390_START 0x02 /* Start the chip, clear reset */ |
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#define E8390_TRANS 0x04 /* Transmit a frame */ |
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#define E8390_RREAD 0x08 /* Remote read */ |
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#define E8390_RWRITE 0x10 /* Remote write */ |
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#define E8390_NODMA 0x20 /* Remote DMA */ |
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#define E8390_PAGE0 0x00 /* Select page chip registers */ |
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#define E8390_PAGE1 0x40 /* using the two high-order bits */ |
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#define E8390_PAGE2 0x80 /* Page 3 is invalid. */ |
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/* Bits in EN0_ISR - Interrupt status register */
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#define ENISR_RX 0x01 /* Receiver, no error */ |
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#define ENISR_TX 0x02 /* Transmitter, no error */ |
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#define ENISR_RX_ERR 0x04 /* Receiver, with error */ |
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#define ENISR_TX_ERR 0x08 /* Transmitter, with error */ |
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#define ENISR_OVER 0x10 /* Receiver overwrote the ring */ |
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#define ENISR_COUNTERS 0x20 /* Counters need emptying */ |
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#define ENISR_RDC 0x40 /* remote dma complete */ |
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#define ENISR_RESET 0x80 /* Reset completed */ |
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#define ENISR_ALL 0x3f /* Interrupts we will enable */ |
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/* Bits in received packet status byte and EN0_RSR*/
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#define ENRSR_RXOK 0x01 /* Received a good packet */ |
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#define ENRSR_CRC 0x02 /* CRC error */ |
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#define ENRSR_FAE 0x04 /* frame alignment error */ |
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#define ENRSR_FO 0x08 /* FIFO overrun */ |
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#define ENRSR_MPA 0x10 /* missed pkt */ |
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#define ENRSR_PHY 0x20 /* physical/multicast address */ |
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#define ENRSR_DIS 0x40 /* receiver disable. set in monitor mode */ |
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#define ENRSR_DEF 0x80 /* deferring */ |
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/* Transmitted packet status, EN0_TSR. */
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#define ENTSR_PTX 0x01 /* Packet transmitted without error */ |
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#define ENTSR_ND 0x02 /* The transmit wasn't deferred. */ |
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#define ENTSR_COL 0x04 /* The transmit collided at least once. */ |
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#define ENTSR_ABT 0x08 /* The transmit collided 16 times, and was deferred. */ |
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#define ENTSR_CRS 0x10 /* The carrier sense was lost. */ |
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#define ENTSR_FU 0x20 /* A "FIFO underrun" occurred during transmit. */ |
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#define ENTSR_CDH 0x40 /* The collision detect "heartbeat" signal was lost. */ |
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#define ENTSR_OWC 0x80 /* There was an out-of-window collision. */ |
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#define NE2000_PMEM_SIZE (32*1024) |
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#define NE2000_PMEM_START (16*1024) |
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#define NE2000_PMEM_END (NE2000_PMEM_SIZE+NE2000_PMEM_START)
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#define NE2000_MEM_SIZE NE2000_PMEM_END
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typedef struct NE2000State { |
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uint8_t cmd; |
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uint32_t start; |
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uint32_t stop; |
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uint8_t boundary; |
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uint8_t tsr; |
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uint8_t tpsr; |
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uint16_t tcnt; |
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uint16_t rcnt; |
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uint32_t rsar; |
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uint8_t rsr; |
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uint8_t rxcr; |
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uint8_t isr; |
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uint8_t dcfg; |
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uint8_t imr; |
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uint8_t phys[6]; /* mac address */ |
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uint8_t curpag; |
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uint8_t mult[8]; /* multicast mask array */ |
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qemu_irq irq; |
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PCIDevice *pci_dev; |
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VLANClientState *vc; |
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uint8_t macaddr[6];
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uint8_t mem[NE2000_MEM_SIZE]; |
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} NE2000State; |
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static void ne2000_reset(NE2000State *s) |
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{ |
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int i;
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s->isr = ENISR_RESET; |
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memcpy(s->mem, s->macaddr, 6);
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s->mem[14] = 0x57; |
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s->mem[15] = 0x57; |
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/* duplicate prom data */
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for(i = 15;i >= 0; i--) { |
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s->mem[2 * i] = s->mem[i];
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s->mem[2 * i + 1] = s->mem[i]; |
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} |
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} |
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static void ne2000_update_irq(NE2000State *s) |
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{ |
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int isr;
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isr = (s->isr & s->imr) & 0x7f;
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#if defined(DEBUG_NE2000)
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printf("NE2000: Set IRQ to %d (%02x %02x)\n",
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isr ? 1 : 0, s->isr, s->imr); |
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#endif
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qemu_set_irq(s->irq, (isr != 0));
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} |
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#define POLYNOMIAL 0x04c11db6 |
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/* From FreeBSD */
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/* XXX: optimize */
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static int compute_mcast_idx(const uint8_t *ep) |
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{ |
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uint32_t crc; |
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int carry, i, j;
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uint8_t b; |
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crc = 0xffffffff;
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for (i = 0; i < 6; i++) { |
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b = *ep++; |
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for (j = 0; j < 8; j++) { |
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carry = ((crc & 0x80000000L) ? 1 : 0) ^ (b & 0x01); |
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crc <<= 1;
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b >>= 1;
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if (carry)
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crc = ((crc ^ POLYNOMIAL) | carry); |
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} |
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} |
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return (crc >> 26); |
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} |
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static int ne2000_buffer_full(NE2000State *s) |
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{ |
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int avail, index, boundary;
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index = s->curpag << 8;
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boundary = s->boundary << 8;
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if (index < boundary)
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avail = boundary - index; |
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else
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avail = (s->stop - s->start) - (index - boundary); |
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if (avail < (MAX_ETH_FRAME_SIZE + 4)) |
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return 1; |
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return 0; |
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} |
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static int ne2000_can_receive(void *opaque) |
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{ |
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NE2000State *s = opaque; |
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if (s->cmd & E8390_STOP)
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return 1; |
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return !ne2000_buffer_full(s);
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} |
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#define MIN_BUF_SIZE 60 |
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static void ne2000_receive(void *opaque, const uint8_t *buf, int size) |
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{ |
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NE2000State *s = opaque; |
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uint8_t *p; |
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unsigned int total_len, next, avail, len, index, mcast_idx; |
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uint8_t buf1[60];
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static const uint8_t broadcast_macaddr[6] = |
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{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; |
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#if defined(DEBUG_NE2000)
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printf("NE2000: received len=%d\n", size);
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#endif
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if (s->cmd & E8390_STOP || ne2000_buffer_full(s))
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return;
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/* XXX: check this */
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if (s->rxcr & 0x10) { |
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/* promiscuous: receive all */
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} else {
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if (!memcmp(buf, broadcast_macaddr, 6)) { |
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/* broadcast address */
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if (!(s->rxcr & 0x04)) |
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return;
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} else if (buf[0] & 0x01) { |
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/* multicast */
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if (!(s->rxcr & 0x08)) |
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return;
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mcast_idx = compute_mcast_idx(buf); |
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if (!(s->mult[mcast_idx >> 3] & (1 << (mcast_idx & 7)))) |
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return;
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} else if (s->mem[0] == buf[0] && |
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s->mem[2] == buf[1] && |
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s->mem[4] == buf[2] && |
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s->mem[6] == buf[3] && |
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s->mem[8] == buf[4] && |
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s->mem[10] == buf[5]) { |
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/* match */
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} else {
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return;
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} |
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} |
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/* if too small buffer, then expand it */
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if (size < MIN_BUF_SIZE) {
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memcpy(buf1, buf, size); |
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memset(buf1 + size, 0, MIN_BUF_SIZE - size);
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buf = buf1; |
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size = MIN_BUF_SIZE; |
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} |
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index = s->curpag << 8;
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/* 4 bytes for header */
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total_len = size + 4;
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/* address for next packet (4 bytes for CRC) */
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next = index + ((total_len + 4 + 255) & ~0xff); |
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if (next >= s->stop)
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next -= (s->stop - s->start); |
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/* prepare packet header */
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p = s->mem + index; |
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s->rsr = ENRSR_RXOK; /* receive status */
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/* XXX: check this */
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if (buf[0] & 0x01) |
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s->rsr |= ENRSR_PHY; |
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p[0] = s->rsr;
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p[1] = next >> 8; |
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p[2] = total_len;
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p[3] = total_len >> 8; |
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index += 4;
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/* write packet data */
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while (size > 0) { |
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if (index <= s->stop)
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avail = s->stop - index; |
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else
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avail = 0;
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len = size; |
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if (len > avail)
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len = avail; |
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memcpy(s->mem + index, buf, len); |
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buf += len; |
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index += len; |
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if (index == s->stop)
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index = s->start; |
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size -= len; |
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} |
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s->curpag = next >> 8;
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|
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/* now we can signal we have received something */
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s->isr |= ENISR_RX; |
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ne2000_update_irq(s); |
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} |
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|
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static void ne2000_ioport_write(void *opaque, uint32_t addr, uint32_t val) |
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{ |
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NE2000State *s = opaque; |
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int offset, page, index;
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addr &= 0xf;
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#ifdef DEBUG_NE2000
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printf("NE2000: write addr=0x%x val=0x%02x\n", addr, val);
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#endif
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if (addr == E8390_CMD) {
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/* control register */
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s->cmd = val; |
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if (!(val & E8390_STOP)) { /* START bit makes no sense on RTL8029... */ |
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s->isr &= ~ENISR_RESET; |
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/* test specific case: zero length transfer */
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if ((val & (E8390_RREAD | E8390_RWRITE)) &&
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s->rcnt == 0) {
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s->isr |= ENISR_RDC; |
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ne2000_update_irq(s); |
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} |
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if (val & E8390_TRANS) {
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index = (s->tpsr << 8);
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/* XXX: next 2 lines are a hack to make netware 3.11 work */
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if (index >= NE2000_PMEM_END)
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index -= NE2000_PMEM_SIZE; |
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/* fail safe: check range on the transmitted length */
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if (index + s->tcnt <= NE2000_PMEM_END) {
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qemu_send_packet(s->vc, s->mem + index, s->tcnt); |
345 |
} |
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/* signal end of transfer */
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s->tsr = ENTSR_PTX; |
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s->isr |= ENISR_TX; |
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s->cmd &= ~E8390_TRANS; |
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ne2000_update_irq(s); |
351 |
} |
352 |
} |
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} else {
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page = s->cmd >> 6;
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offset = addr | (page << 4);
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switch(offset) {
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case EN0_STARTPG:
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s->start = val << 8;
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break;
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case EN0_STOPPG:
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s->stop = val << 8;
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break;
|
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case EN0_BOUNDARY:
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s->boundary = val; |
365 |
break;
|
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case EN0_IMR:
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s->imr = val; |
368 |
ne2000_update_irq(s); |
369 |
break;
|
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case EN0_TPSR:
|
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s->tpsr = val; |
372 |
break;
|
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case EN0_TCNTLO:
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s->tcnt = (s->tcnt & 0xff00) | val;
|
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break;
|
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case EN0_TCNTHI:
|
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s->tcnt = (s->tcnt & 0x00ff) | (val << 8); |
378 |
break;
|
379 |
case EN0_RSARLO:
|
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s->rsar = (s->rsar & 0xff00) | val;
|
381 |
break;
|
382 |
case EN0_RSARHI:
|
383 |
s->rsar = (s->rsar & 0x00ff) | (val << 8); |
384 |
break;
|
385 |
case EN0_RCNTLO:
|
386 |
s->rcnt = (s->rcnt & 0xff00) | val;
|
387 |
break;
|
388 |
case EN0_RCNTHI:
|
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s->rcnt = (s->rcnt & 0x00ff) | (val << 8); |
390 |
break;
|
391 |
case EN0_RXCR:
|
392 |
s->rxcr = val; |
393 |
break;
|
394 |
case EN0_DCFG:
|
395 |
s->dcfg = val; |
396 |
break;
|
397 |
case EN0_ISR:
|
398 |
s->isr &= ~(val & 0x7f);
|
399 |
ne2000_update_irq(s); |
400 |
break;
|
401 |
case EN1_PHYS ... EN1_PHYS + 5: |
402 |
s->phys[offset - EN1_PHYS] = val; |
403 |
break;
|
404 |
case EN1_CURPAG:
|
405 |
s->curpag = val; |
406 |
break;
|
407 |
case EN1_MULT ... EN1_MULT + 7: |
408 |
s->mult[offset - EN1_MULT] = val; |
409 |
break;
|
410 |
} |
411 |
} |
412 |
} |
413 |
|
414 |
static uint32_t ne2000_ioport_read(void *opaque, uint32_t addr) |
415 |
{ |
416 |
NE2000State *s = opaque; |
417 |
int offset, page, ret;
|
418 |
|
419 |
addr &= 0xf;
|
420 |
if (addr == E8390_CMD) {
|
421 |
ret = s->cmd; |
422 |
} else {
|
423 |
page = s->cmd >> 6;
|
424 |
offset = addr | (page << 4);
|
425 |
switch(offset) {
|
426 |
case EN0_TSR:
|
427 |
ret = s->tsr; |
428 |
break;
|
429 |
case EN0_BOUNDARY:
|
430 |
ret = s->boundary; |
431 |
break;
|
432 |
case EN0_ISR:
|
433 |
ret = s->isr; |
434 |
break;
|
435 |
case EN0_RSARLO:
|
436 |
ret = s->rsar & 0x00ff;
|
437 |
break;
|
438 |
case EN0_RSARHI:
|
439 |
ret = s->rsar >> 8;
|
440 |
break;
|
441 |
case EN1_PHYS ... EN1_PHYS + 5: |
442 |
ret = s->phys[offset - EN1_PHYS]; |
443 |
break;
|
444 |
case EN1_CURPAG:
|
445 |
ret = s->curpag; |
446 |
break;
|
447 |
case EN1_MULT ... EN1_MULT + 7: |
448 |
ret = s->mult[offset - EN1_MULT]; |
449 |
break;
|
450 |
case EN0_RSR:
|
451 |
ret = s->rsr; |
452 |
break;
|
453 |
case EN2_STARTPG:
|
454 |
ret = s->start >> 8;
|
455 |
break;
|
456 |
case EN2_STOPPG:
|
457 |
ret = s->stop >> 8;
|
458 |
break;
|
459 |
case EN0_RTL8029ID0:
|
460 |
ret = 0x50;
|
461 |
break;
|
462 |
case EN0_RTL8029ID1:
|
463 |
ret = 0x43;
|
464 |
break;
|
465 |
case EN3_CONFIG0:
|
466 |
ret = 0; /* 10baseT media */ |
467 |
break;
|
468 |
case EN3_CONFIG2:
|
469 |
ret = 0x40; /* 10baseT active */ |
470 |
break;
|
471 |
case EN3_CONFIG3:
|
472 |
ret = 0x40; /* Full duplex */ |
473 |
break;
|
474 |
default:
|
475 |
ret = 0x00;
|
476 |
break;
|
477 |
} |
478 |
} |
479 |
#ifdef DEBUG_NE2000
|
480 |
printf("NE2000: read addr=0x%x val=%02x\n", addr, ret);
|
481 |
#endif
|
482 |
return ret;
|
483 |
} |
484 |
|
485 |
static inline void ne2000_mem_writeb(NE2000State *s, uint32_t addr, |
486 |
uint32_t val) |
487 |
{ |
488 |
if (addr < 32 || |
489 |
(addr >= NE2000_PMEM_START && addr < NE2000_MEM_SIZE)) { |
490 |
s->mem[addr] = val; |
491 |
} |
492 |
} |
493 |
|
494 |
static inline void ne2000_mem_writew(NE2000State *s, uint32_t addr, |
495 |
uint32_t val) |
496 |
{ |
497 |
addr &= ~1; /* XXX: check exact behaviour if not even */ |
498 |
if (addr < 32 || |
499 |
(addr >= NE2000_PMEM_START && addr < NE2000_MEM_SIZE)) { |
500 |
*(uint16_t *)(s->mem + addr) = cpu_to_le16(val); |
501 |
} |
502 |
} |
503 |
|
504 |
static inline void ne2000_mem_writel(NE2000State *s, uint32_t addr, |
505 |
uint32_t val) |
506 |
{ |
507 |
addr &= ~1; /* XXX: check exact behaviour if not even */ |
508 |
if (addr < 32 || |
509 |
(addr >= NE2000_PMEM_START && addr < NE2000_MEM_SIZE)) { |
510 |
cpu_to_le32wu((uint32_t *)(s->mem + addr), val); |
511 |
} |
512 |
} |
513 |
|
514 |
static inline uint32_t ne2000_mem_readb(NE2000State *s, uint32_t addr) |
515 |
{ |
516 |
if (addr < 32 || |
517 |
(addr >= NE2000_PMEM_START && addr < NE2000_MEM_SIZE)) { |
518 |
return s->mem[addr];
|
519 |
} else {
|
520 |
return 0xff; |
521 |
} |
522 |
} |
523 |
|
524 |
static inline uint32_t ne2000_mem_readw(NE2000State *s, uint32_t addr) |
525 |
{ |
526 |
addr &= ~1; /* XXX: check exact behaviour if not even */ |
527 |
if (addr < 32 || |
528 |
(addr >= NE2000_PMEM_START && addr < NE2000_MEM_SIZE)) { |
529 |
return le16_to_cpu(*(uint16_t *)(s->mem + addr));
|
530 |
} else {
|
531 |
return 0xffff; |
532 |
} |
533 |
} |
534 |
|
535 |
static inline uint32_t ne2000_mem_readl(NE2000State *s, uint32_t addr) |
536 |
{ |
537 |
addr &= ~1; /* XXX: check exact behaviour if not even */ |
538 |
if (addr < 32 || |
539 |
(addr >= NE2000_PMEM_START && addr < NE2000_MEM_SIZE)) { |
540 |
return le32_to_cpupu((uint32_t *)(s->mem + addr));
|
541 |
} else {
|
542 |
return 0xffffffff; |
543 |
} |
544 |
} |
545 |
|
546 |
static inline void ne2000_dma_update(NE2000State *s, int len) |
547 |
{ |
548 |
s->rsar += len; |
549 |
/* wrap */
|
550 |
/* XXX: check what to do if rsar > stop */
|
551 |
if (s->rsar == s->stop)
|
552 |
s->rsar = s->start; |
553 |
|
554 |
if (s->rcnt <= len) {
|
555 |
s->rcnt = 0;
|
556 |
/* signal end of transfer */
|
557 |
s->isr |= ENISR_RDC; |
558 |
ne2000_update_irq(s); |
559 |
} else {
|
560 |
s->rcnt -= len; |
561 |
} |
562 |
} |
563 |
|
564 |
static void ne2000_asic_ioport_write(void *opaque, uint32_t addr, uint32_t val) |
565 |
{ |
566 |
NE2000State *s = opaque; |
567 |
|
568 |
#ifdef DEBUG_NE2000
|
569 |
printf("NE2000: asic write val=0x%04x\n", val);
|
570 |
#endif
|
571 |
if (s->rcnt == 0) |
572 |
return;
|
573 |
if (s->dcfg & 0x01) { |
574 |
/* 16 bit access */
|
575 |
ne2000_mem_writew(s, s->rsar, val); |
576 |
ne2000_dma_update(s, 2);
|
577 |
} else {
|
578 |
/* 8 bit access */
|
579 |
ne2000_mem_writeb(s, s->rsar, val); |
580 |
ne2000_dma_update(s, 1);
|
581 |
} |
582 |
} |
583 |
|
584 |
static uint32_t ne2000_asic_ioport_read(void *opaque, uint32_t addr) |
585 |
{ |
586 |
NE2000State *s = opaque; |
587 |
int ret;
|
588 |
|
589 |
if (s->dcfg & 0x01) { |
590 |
/* 16 bit access */
|
591 |
ret = ne2000_mem_readw(s, s->rsar); |
592 |
ne2000_dma_update(s, 2);
|
593 |
} else {
|
594 |
/* 8 bit access */
|
595 |
ret = ne2000_mem_readb(s, s->rsar); |
596 |
ne2000_dma_update(s, 1);
|
597 |
} |
598 |
#ifdef DEBUG_NE2000
|
599 |
printf("NE2000: asic read val=0x%04x\n", ret);
|
600 |
#endif
|
601 |
return ret;
|
602 |
} |
603 |
|
604 |
static void ne2000_asic_ioport_writel(void *opaque, uint32_t addr, uint32_t val) |
605 |
{ |
606 |
NE2000State *s = opaque; |
607 |
|
608 |
#ifdef DEBUG_NE2000
|
609 |
printf("NE2000: asic writel val=0x%04x\n", val);
|
610 |
#endif
|
611 |
if (s->rcnt == 0) |
612 |
return;
|
613 |
/* 32 bit access */
|
614 |
ne2000_mem_writel(s, s->rsar, val); |
615 |
ne2000_dma_update(s, 4);
|
616 |
} |
617 |
|
618 |
static uint32_t ne2000_asic_ioport_readl(void *opaque, uint32_t addr) |
619 |
{ |
620 |
NE2000State *s = opaque; |
621 |
int ret;
|
622 |
|
623 |
/* 32 bit access */
|
624 |
ret = ne2000_mem_readl(s, s->rsar); |
625 |
ne2000_dma_update(s, 4);
|
626 |
#ifdef DEBUG_NE2000
|
627 |
printf("NE2000: asic readl val=0x%04x\n", ret);
|
628 |
#endif
|
629 |
return ret;
|
630 |
} |
631 |
|
632 |
static void ne2000_reset_ioport_write(void *opaque, uint32_t addr, uint32_t val) |
633 |
{ |
634 |
/* nothing to do (end of reset pulse) */
|
635 |
} |
636 |
|
637 |
static uint32_t ne2000_reset_ioport_read(void *opaque, uint32_t addr) |
638 |
{ |
639 |
NE2000State *s = opaque; |
640 |
ne2000_reset(s); |
641 |
return 0; |
642 |
} |
643 |
|
644 |
static void ne2000_save(QEMUFile* f,void* opaque) |
645 |
{ |
646 |
NE2000State* s=(NE2000State*)opaque; |
647 |
int tmp;
|
648 |
|
649 |
if (s->pci_dev)
|
650 |
pci_device_save(s->pci_dev, f); |
651 |
|
652 |
qemu_put_8s(f, &s->rxcr); |
653 |
|
654 |
qemu_put_8s(f, &s->cmd); |
655 |
qemu_put_be32s(f, &s->start); |
656 |
qemu_put_be32s(f, &s->stop); |
657 |
qemu_put_8s(f, &s->boundary); |
658 |
qemu_put_8s(f, &s->tsr); |
659 |
qemu_put_8s(f, &s->tpsr); |
660 |
qemu_put_be16s(f, &s->tcnt); |
661 |
qemu_put_be16s(f, &s->rcnt); |
662 |
qemu_put_be32s(f, &s->rsar); |
663 |
qemu_put_8s(f, &s->rsr); |
664 |
qemu_put_8s(f, &s->isr); |
665 |
qemu_put_8s(f, &s->dcfg); |
666 |
qemu_put_8s(f, &s->imr); |
667 |
qemu_put_buffer(f, s->phys, 6);
|
668 |
qemu_put_8s(f, &s->curpag); |
669 |
qemu_put_buffer(f, s->mult, 8);
|
670 |
tmp = 0;
|
671 |
qemu_put_be32s(f, &tmp); /* ignored, was irq */
|
672 |
qemu_put_buffer(f, s->mem, NE2000_MEM_SIZE); |
673 |
} |
674 |
|
675 |
static int ne2000_load(QEMUFile* f,void* opaque,int version_id) |
676 |
{ |
677 |
NE2000State* s=(NE2000State*)opaque; |
678 |
int ret;
|
679 |
int tmp;
|
680 |
|
681 |
if (version_id > 3) |
682 |
return -EINVAL;
|
683 |
|
684 |
if (s->pci_dev && version_id >= 3) { |
685 |
ret = pci_device_load(s->pci_dev, f); |
686 |
if (ret < 0) |
687 |
return ret;
|
688 |
} |
689 |
|
690 |
if (version_id >= 2) { |
691 |
qemu_get_8s(f, &s->rxcr); |
692 |
} else {
|
693 |
s->rxcr = 0x0c;
|
694 |
} |
695 |
|
696 |
qemu_get_8s(f, &s->cmd); |
697 |
qemu_get_be32s(f, &s->start); |
698 |
qemu_get_be32s(f, &s->stop); |
699 |
qemu_get_8s(f, &s->boundary); |
700 |
qemu_get_8s(f, &s->tsr); |
701 |
qemu_get_8s(f, &s->tpsr); |
702 |
qemu_get_be16s(f, &s->tcnt); |
703 |
qemu_get_be16s(f, &s->rcnt); |
704 |
qemu_get_be32s(f, &s->rsar); |
705 |
qemu_get_8s(f, &s->rsr); |
706 |
qemu_get_8s(f, &s->isr); |
707 |
qemu_get_8s(f, &s->dcfg); |
708 |
qemu_get_8s(f, &s->imr); |
709 |
qemu_get_buffer(f, s->phys, 6);
|
710 |
qemu_get_8s(f, &s->curpag); |
711 |
qemu_get_buffer(f, s->mult, 8);
|
712 |
qemu_get_be32s(f, &tmp); /* ignored */
|
713 |
qemu_get_buffer(f, s->mem, NE2000_MEM_SIZE); |
714 |
|
715 |
return 0; |
716 |
} |
717 |
|
718 |
void isa_ne2000_init(int base, qemu_irq irq, NICInfo *nd) |
719 |
{ |
720 |
NE2000State *s; |
721 |
|
722 |
s = qemu_mallocz(sizeof(NE2000State));
|
723 |
if (!s)
|
724 |
return;
|
725 |
|
726 |
register_ioport_write(base, 16, 1, ne2000_ioport_write, s); |
727 |
register_ioport_read(base, 16, 1, ne2000_ioport_read, s); |
728 |
|
729 |
register_ioport_write(base + 0x10, 1, 1, ne2000_asic_ioport_write, s); |
730 |
register_ioport_read(base + 0x10, 1, 1, ne2000_asic_ioport_read, s); |
731 |
register_ioport_write(base + 0x10, 2, 2, ne2000_asic_ioport_write, s); |
732 |
register_ioport_read(base + 0x10, 2, 2, ne2000_asic_ioport_read, s); |
733 |
|
734 |
register_ioport_write(base + 0x1f, 1, 1, ne2000_reset_ioport_write, s); |
735 |
register_ioport_read(base + 0x1f, 1, 1, ne2000_reset_ioport_read, s); |
736 |
s->irq = irq; |
737 |
memcpy(s->macaddr, nd->macaddr, 6);
|
738 |
|
739 |
ne2000_reset(s); |
740 |
|
741 |
s->vc = qemu_new_vlan_client(nd->vlan, ne2000_receive, |
742 |
ne2000_can_receive, s); |
743 |
|
744 |
snprintf(s->vc->info_str, sizeof(s->vc->info_str),
|
745 |
"ne2000 macaddr=%02x:%02x:%02x:%02x:%02x:%02x",
|
746 |
s->macaddr[0],
|
747 |
s->macaddr[1],
|
748 |
s->macaddr[2],
|
749 |
s->macaddr[3],
|
750 |
s->macaddr[4],
|
751 |
s->macaddr[5]);
|
752 |
|
753 |
register_savevm("ne2000", 0, 2, ne2000_save, ne2000_load, s); |
754 |
} |
755 |
|
756 |
/***********************************************************/
|
757 |
/* PCI NE2000 definitions */
|
758 |
|
759 |
typedef struct PCINE2000State { |
760 |
PCIDevice dev; |
761 |
NE2000State ne2000; |
762 |
} PCINE2000State; |
763 |
|
764 |
static void ne2000_map(PCIDevice *pci_dev, int region_num, |
765 |
uint32_t addr, uint32_t size, int type)
|
766 |
{ |
767 |
PCINE2000State *d = (PCINE2000State *)pci_dev; |
768 |
NE2000State *s = &d->ne2000; |
769 |
|
770 |
register_ioport_write(addr, 16, 1, ne2000_ioport_write, s); |
771 |
register_ioport_read(addr, 16, 1, ne2000_ioport_read, s); |
772 |
|
773 |
register_ioport_write(addr + 0x10, 1, 1, ne2000_asic_ioport_write, s); |
774 |
register_ioport_read(addr + 0x10, 1, 1, ne2000_asic_ioport_read, s); |
775 |
register_ioport_write(addr + 0x10, 2, 2, ne2000_asic_ioport_write, s); |
776 |
register_ioport_read(addr + 0x10, 2, 2, ne2000_asic_ioport_read, s); |
777 |
register_ioport_write(addr + 0x10, 4, 4, ne2000_asic_ioport_writel, s); |
778 |
register_ioport_read(addr + 0x10, 4, 4, ne2000_asic_ioport_readl, s); |
779 |
|
780 |
register_ioport_write(addr + 0x1f, 1, 1, ne2000_reset_ioport_write, s); |
781 |
register_ioport_read(addr + 0x1f, 1, 1, ne2000_reset_ioport_read, s); |
782 |
} |
783 |
|
784 |
void pci_ne2000_init(PCIBus *bus, NICInfo *nd, int devfn) |
785 |
{ |
786 |
PCINE2000State *d; |
787 |
NE2000State *s; |
788 |
uint8_t *pci_conf; |
789 |
|
790 |
d = (PCINE2000State *)pci_register_device(bus, |
791 |
"NE2000", sizeof(PCINE2000State), |
792 |
devfn, |
793 |
NULL, NULL); |
794 |
pci_conf = d->dev.config; |
795 |
pci_conf[0x00] = 0xec; // Realtek 8029 |
796 |
pci_conf[0x01] = 0x10; |
797 |
pci_conf[0x02] = 0x29; |
798 |
pci_conf[0x03] = 0x80; |
799 |
pci_conf[0x0a] = 0x00; // ethernet network controller |
800 |
pci_conf[0x0b] = 0x02; |
801 |
pci_conf[0x0e] = 0x00; // header_type |
802 |
pci_conf[0x3d] = 1; // interrupt pin 0 |
803 |
|
804 |
pci_register_io_region(&d->dev, 0, 0x100, |
805 |
PCI_ADDRESS_SPACE_IO, ne2000_map); |
806 |
s = &d->ne2000; |
807 |
s->irq = d->dev.irq[0];
|
808 |
s->pci_dev = (PCIDevice *)d; |
809 |
memcpy(s->macaddr, nd->macaddr, 6);
|
810 |
ne2000_reset(s); |
811 |
s->vc = qemu_new_vlan_client(nd->vlan, ne2000_receive, |
812 |
ne2000_can_receive, s); |
813 |
|
814 |
snprintf(s->vc->info_str, sizeof(s->vc->info_str),
|
815 |
"ne2000 pci macaddr=%02x:%02x:%02x:%02x:%02x:%02x",
|
816 |
s->macaddr[0],
|
817 |
s->macaddr[1],
|
818 |
s->macaddr[2],
|
819 |
s->macaddr[3],
|
820 |
s->macaddr[4],
|
821 |
s->macaddr[5]);
|
822 |
|
823 |
/* XXX: instance number ? */
|
824 |
register_savevm("ne2000", 0, 3, ne2000_save, ne2000_load, s); |
825 |
} |