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/*
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* QEMU AMD PC-Net II (Am79C970A) emulation
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*
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* Copyright (c) 2004 Antony T Curtis
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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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/* This software was written to be compatible with the specification:
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* AMD Am79C970A PCnet-PCI II Ethernet Controller Data-Sheet
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* AMD Publication# 19436 Rev:E Amendment/0 Issue Date: June 2000
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*/
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/*
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* On Sparc32, this is the Lance (Am7990) part of chip STP2000 (Master I/O), also
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* produced as NCR89C100. See
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* http://www.ibiblio.org/pub/historic-linux/early-ports/Sparc/NCR/NCR89C100.txt
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* and
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* http://www.ibiblio.org/pub/historic-linux/early-ports/Sparc/NCR/NCR92C990.txt
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*/
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#include "hw/qdev.h" |
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#include "net/net.h" |
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#include "qemu/timer.h" |
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#include "qemu/sockets.h" |
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#include "sysemu/sysemu.h" |
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#include "hw/pcnet.h" |
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//#define PCNET_DEBUG
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//#define PCNET_DEBUG_IO
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//#define PCNET_DEBUG_BCR
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//#define PCNET_DEBUG_CSR
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//#define PCNET_DEBUG_RMD
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//#define PCNET_DEBUG_TMD
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//#define PCNET_DEBUG_MATCH
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struct qemu_ether_header {
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uint8_t ether_dhost[6];
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uint8_t ether_shost[6];
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uint16_t ether_type; |
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}; |
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#define CSR_INIT(S) !!(((S)->csr[0])&0x0001) |
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#define CSR_STRT(S) !!(((S)->csr[0])&0x0002) |
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#define CSR_STOP(S) !!(((S)->csr[0])&0x0004) |
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#define CSR_TDMD(S) !!(((S)->csr[0])&0x0008) |
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#define CSR_TXON(S) !!(((S)->csr[0])&0x0010) |
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#define CSR_RXON(S) !!(((S)->csr[0])&0x0020) |
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#define CSR_INEA(S) !!(((S)->csr[0])&0x0040) |
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#define CSR_BSWP(S) !!(((S)->csr[3])&0x0004) |
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#define CSR_LAPPEN(S) !!(((S)->csr[3])&0x0020) |
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#define CSR_DXSUFLO(S) !!(((S)->csr[3])&0x0040) |
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#define CSR_ASTRP_RCV(S) !!(((S)->csr[4])&0x0800) |
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#define CSR_DPOLL(S) !!(((S)->csr[4])&0x1000) |
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#define CSR_SPND(S) !!(((S)->csr[5])&0x0001) |
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#define CSR_LTINTEN(S) !!(((S)->csr[5])&0x4000) |
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#define CSR_TOKINTD(S) !!(((S)->csr[5])&0x8000) |
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#define CSR_DRX(S) !!(((S)->csr[15])&0x0001) |
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#define CSR_DTX(S) !!(((S)->csr[15])&0x0002) |
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#define CSR_LOOP(S) !!(((S)->csr[15])&0x0004) |
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#define CSR_DXMTFCS(S) !!(((S)->csr[15])&0x0008) |
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#define CSR_INTL(S) !!(((S)->csr[15])&0x0040) |
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#define CSR_DRCVPA(S) !!(((S)->csr[15])&0x2000) |
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#define CSR_DRCVBC(S) !!(((S)->csr[15])&0x4000) |
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#define CSR_PROM(S) !!(((S)->csr[15])&0x8000) |
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#define CSR_CRBC(S) ((S)->csr[40]) |
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#define CSR_CRST(S) ((S)->csr[41]) |
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#define CSR_CXBC(S) ((S)->csr[42]) |
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#define CSR_CXST(S) ((S)->csr[43]) |
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#define CSR_NRBC(S) ((S)->csr[44]) |
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#define CSR_NRST(S) ((S)->csr[45]) |
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#define CSR_POLL(S) ((S)->csr[46]) |
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#define CSR_PINT(S) ((S)->csr[47]) |
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#define CSR_RCVRC(S) ((S)->csr[72]) |
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#define CSR_XMTRC(S) ((S)->csr[74]) |
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#define CSR_RCVRL(S) ((S)->csr[76]) |
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#define CSR_XMTRL(S) ((S)->csr[78]) |
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#define CSR_MISSC(S) ((S)->csr[112]) |
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#define CSR_IADR(S) ((S)->csr[ 1] | ((uint32_t)(S)->csr[ 2] << 16)) |
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#define CSR_CRBA(S) ((S)->csr[18] | ((uint32_t)(S)->csr[19] << 16)) |
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#define CSR_CXBA(S) ((S)->csr[20] | ((uint32_t)(S)->csr[21] << 16)) |
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#define CSR_NRBA(S) ((S)->csr[22] | ((uint32_t)(S)->csr[23] << 16)) |
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#define CSR_BADR(S) ((S)->csr[24] | ((uint32_t)(S)->csr[25] << 16)) |
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#define CSR_NRDA(S) ((S)->csr[26] | ((uint32_t)(S)->csr[27] << 16)) |
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#define CSR_CRDA(S) ((S)->csr[28] | ((uint32_t)(S)->csr[29] << 16)) |
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#define CSR_BADX(S) ((S)->csr[30] | ((uint32_t)(S)->csr[31] << 16)) |
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#define CSR_NXDA(S) ((S)->csr[32] | ((uint32_t)(S)->csr[33] << 16)) |
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#define CSR_CXDA(S) ((S)->csr[34] | ((uint32_t)(S)->csr[35] << 16)) |
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#define CSR_NNRD(S) ((S)->csr[36] | ((uint32_t)(S)->csr[37] << 16)) |
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#define CSR_NNXD(S) ((S)->csr[38] | ((uint32_t)(S)->csr[39] << 16)) |
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#define CSR_PXDA(S) ((S)->csr[60] | ((uint32_t)(S)->csr[61] << 16)) |
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#define CSR_NXBA(S) ((S)->csr[64] | ((uint32_t)(S)->csr[65] << 16)) |
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#define PHYSADDR(S,A) \
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(BCR_SSIZE32(S) ? (A) : (A) | ((0xff00 & (uint32_t)(S)->csr[2])<<16)) |
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struct pcnet_initblk16 {
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uint16_t mode; |
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uint16_t padr[3];
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uint16_t ladrf[4];
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uint32_t rdra; |
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uint32_t tdra; |
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}; |
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struct pcnet_initblk32 {
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uint16_t mode; |
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uint8_t rlen; |
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uint8_t tlen; |
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uint16_t padr[3];
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uint16_t _res; |
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uint16_t ladrf[4];
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uint32_t rdra; |
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uint32_t tdra; |
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}; |
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struct pcnet_TMD {
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uint32_t tbadr; |
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int16_t length; |
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int16_t status; |
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uint32_t misc; |
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uint32_t res; |
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}; |
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#define TMDL_BCNT_MASK 0x0fff |
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#define TMDL_BCNT_SH 0 |
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#define TMDL_ONES_MASK 0xf000 |
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#define TMDL_ONES_SH 12 |
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#define TMDS_BPE_MASK 0x0080 |
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#define TMDS_BPE_SH 7 |
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#define TMDS_ENP_MASK 0x0100 |
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#define TMDS_ENP_SH 8 |
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#define TMDS_STP_MASK 0x0200 |
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#define TMDS_STP_SH 9 |
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#define TMDS_DEF_MASK 0x0400 |
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#define TMDS_DEF_SH 10 |
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#define TMDS_ONE_MASK 0x0800 |
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#define TMDS_ONE_SH 11 |
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#define TMDS_LTINT_MASK 0x1000 |
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#define TMDS_LTINT_SH 12 |
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#define TMDS_NOFCS_MASK 0x2000 |
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#define TMDS_NOFCS_SH 13 |
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#define TMDS_ADDFCS_MASK TMDS_NOFCS_MASK
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#define TMDS_ADDFCS_SH TMDS_NOFCS_SH
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#define TMDS_ERR_MASK 0x4000 |
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#define TMDS_ERR_SH 14 |
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#define TMDS_OWN_MASK 0x8000 |
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#define TMDS_OWN_SH 15 |
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#define TMDM_TRC_MASK 0x0000000f |
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#define TMDM_TRC_SH 0 |
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#define TMDM_TDR_MASK 0x03ff0000 |
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#define TMDM_TDR_SH 16 |
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#define TMDM_RTRY_MASK 0x04000000 |
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#define TMDM_RTRY_SH 26 |
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#define TMDM_LCAR_MASK 0x08000000 |
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#define TMDM_LCAR_SH 27 |
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#define TMDM_LCOL_MASK 0x10000000 |
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#define TMDM_LCOL_SH 28 |
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#define TMDM_EXDEF_MASK 0x20000000 |
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#define TMDM_EXDEF_SH 29 |
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#define TMDM_UFLO_MASK 0x40000000 |
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#define TMDM_UFLO_SH 30 |
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#define TMDM_BUFF_MASK 0x80000000 |
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#define TMDM_BUFF_SH 31 |
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struct pcnet_RMD {
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uint32_t rbadr; |
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int16_t buf_length; |
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int16_t status; |
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uint32_t msg_length; |
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uint32_t res; |
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}; |
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#define RMDL_BCNT_MASK 0x0fff |
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#define RMDL_BCNT_SH 0 |
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#define RMDL_ONES_MASK 0xf000 |
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#define RMDL_ONES_SH 12 |
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#define RMDS_BAM_MASK 0x0010 |
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#define RMDS_BAM_SH 4 |
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#define RMDS_LFAM_MASK 0x0020 |
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#define RMDS_LFAM_SH 5 |
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#define RMDS_PAM_MASK 0x0040 |
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#define RMDS_PAM_SH 6 |
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#define RMDS_BPE_MASK 0x0080 |
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#define RMDS_BPE_SH 7 |
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#define RMDS_ENP_MASK 0x0100 |
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#define RMDS_ENP_SH 8 |
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#define RMDS_STP_MASK 0x0200 |
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#define RMDS_STP_SH 9 |
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#define RMDS_BUFF_MASK 0x0400 |
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#define RMDS_BUFF_SH 10 |
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#define RMDS_CRC_MASK 0x0800 |
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#define RMDS_CRC_SH 11 |
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#define RMDS_OFLO_MASK 0x1000 |
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#define RMDS_OFLO_SH 12 |
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#define RMDS_FRAM_MASK 0x2000 |
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#define RMDS_FRAM_SH 13 |
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#define RMDS_ERR_MASK 0x4000 |
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#define RMDS_ERR_SH 14 |
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#define RMDS_OWN_MASK 0x8000 |
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#define RMDS_OWN_SH 15 |
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#define RMDM_MCNT_MASK 0x00000fff |
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#define RMDM_MCNT_SH 0 |
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#define RMDM_ZEROS_MASK 0x0000f000 |
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#define RMDM_ZEROS_SH 12 |
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#define RMDM_RPC_MASK 0x00ff0000 |
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#define RMDM_RPC_SH 16 |
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#define RMDM_RCC_MASK 0xff000000 |
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#define RMDM_RCC_SH 24 |
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#define SET_FIELD(regp, name, field, value) \
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(*(regp) = (*(regp) & ~(name ## _ ## field ## _MASK)) \ |
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| ((value) << name ## _ ## field ## _SH)) |
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#define GET_FIELD(reg, name, field) \
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(((reg) & name ## _ ## field ## _MASK) >> name ## _ ## field ## _SH) |
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#define PRINT_TMD(T) printf( \
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"TMD0 : TBADR=0x%08x\n" \
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"TMD1 : OWN=%d, ERR=%d, FCS=%d, LTI=%d, " \
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"ONE=%d, DEF=%d, STP=%d, ENP=%d,\n" \
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" BPE=%d, BCNT=%d\n" \
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"TMD2 : BUF=%d, UFL=%d, EXD=%d, LCO=%d, " \
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"LCA=%d, RTR=%d,\n" \
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" TDR=%d, TRC=%d\n", \
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(T)->tbadr, \ |
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GET_FIELD((T)->status, TMDS, OWN), \ |
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GET_FIELD((T)->status, TMDS, ERR), \ |
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GET_FIELD((T)->status, TMDS, NOFCS), \ |
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GET_FIELD((T)->status, TMDS, LTINT), \ |
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GET_FIELD((T)->status, TMDS, ONE), \ |
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GET_FIELD((T)->status, TMDS, DEF), \ |
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GET_FIELD((T)->status, TMDS, STP), \ |
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GET_FIELD((T)->status, TMDS, ENP), \ |
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GET_FIELD((T)->status, TMDS, BPE), \ |
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4096-GET_FIELD((T)->length, TMDL, BCNT), \
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GET_FIELD((T)->misc, TMDM, BUFF), \ |
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GET_FIELD((T)->misc, TMDM, UFLO), \ |
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GET_FIELD((T)->misc, TMDM, EXDEF), \ |
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GET_FIELD((T)->misc, TMDM, LCOL), \ |
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GET_FIELD((T)->misc, TMDM, LCAR), \ |
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GET_FIELD((T)->misc, TMDM, RTRY), \ |
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GET_FIELD((T)->misc, TMDM, TDR), \ |
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GET_FIELD((T)->misc, TMDM, TRC)) |
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#define PRINT_RMD(R) printf( \
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"RMD0 : RBADR=0x%08x\n" \
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"RMD1 : OWN=%d, ERR=%d, FRAM=%d, OFLO=%d, " \
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"CRC=%d, BUFF=%d, STP=%d, ENP=%d,\n " \
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"BPE=%d, PAM=%d, LAFM=%d, BAM=%d, ONES=%d, BCNT=%d\n" \
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"RMD2 : RCC=%d, RPC=%d, MCNT=%d, ZEROS=%d\n", \
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(R)->rbadr, \ |
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GET_FIELD((R)->status, RMDS, OWN), \ |
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GET_FIELD((R)->status, RMDS, ERR), \ |
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GET_FIELD((R)->status, RMDS, FRAM), \ |
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GET_FIELD((R)->status, RMDS, OFLO), \ |
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GET_FIELD((R)->status, RMDS, CRC), \ |
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GET_FIELD((R)->status, RMDS, BUFF), \ |
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GET_FIELD((R)->status, RMDS, STP), \ |
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GET_FIELD((R)->status, RMDS, ENP), \ |
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GET_FIELD((R)->status, RMDS, BPE), \ |
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GET_FIELD((R)->status, RMDS, PAM), \ |
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GET_FIELD((R)->status, RMDS, LFAM), \ |
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GET_FIELD((R)->status, RMDS, BAM), \ |
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GET_FIELD((R)->buf_length, RMDL, ONES), \ |
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4096-GET_FIELD((R)->buf_length, RMDL, BCNT), \
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GET_FIELD((R)->msg_length, RMDM, RCC), \ |
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GET_FIELD((R)->msg_length, RMDM, RPC), \ |
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GET_FIELD((R)->msg_length, RMDM, MCNT), \ |
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GET_FIELD((R)->msg_length, RMDM, ZEROS)) |
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|
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static inline void pcnet_tmd_load(PCNetState *s, struct pcnet_TMD *tmd, |
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hwaddr addr) |
297 |
{ |
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if (!BCR_SSIZE32(s)) {
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struct {
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uint32_t tbadr; |
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int16_t length; |
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int16_t status; |
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} xda; |
304 |
s->phys_mem_read(s->dma_opaque, addr, (void *)&xda, sizeof(xda), 0); |
305 |
tmd->tbadr = le32_to_cpu(xda.tbadr) & 0xffffff;
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tmd->length = le16_to_cpu(xda.length); |
307 |
tmd->status = (le32_to_cpu(xda.tbadr) >> 16) & 0xff00; |
308 |
tmd->misc = le16_to_cpu(xda.status) << 16;
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tmd->res = 0;
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} else {
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s->phys_mem_read(s->dma_opaque, addr, (void *)tmd, sizeof(*tmd), 0); |
312 |
le32_to_cpus(&tmd->tbadr); |
313 |
le16_to_cpus((uint16_t *)&tmd->length); |
314 |
le16_to_cpus((uint16_t *)&tmd->status); |
315 |
le32_to_cpus(&tmd->misc); |
316 |
le32_to_cpus(&tmd->res); |
317 |
if (BCR_SWSTYLE(s) == 3) { |
318 |
uint32_t tmp = tmd->tbadr; |
319 |
tmd->tbadr = tmd->misc; |
320 |
tmd->misc = tmp; |
321 |
} |
322 |
} |
323 |
} |
324 |
|
325 |
static inline void pcnet_tmd_store(PCNetState *s, const struct pcnet_TMD *tmd, |
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hwaddr addr) |
327 |
{ |
328 |
if (!BCR_SSIZE32(s)) {
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struct {
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uint32_t tbadr; |
331 |
int16_t length; |
332 |
int16_t status; |
333 |
} xda; |
334 |
xda.tbadr = cpu_to_le32((tmd->tbadr & 0xffffff) |
|
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((tmd->status & 0xff00) << 16)); |
336 |
xda.length = cpu_to_le16(tmd->length); |
337 |
xda.status = cpu_to_le16(tmd->misc >> 16);
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s->phys_mem_write(s->dma_opaque, addr, (void *)&xda, sizeof(xda), 0); |
339 |
} else {
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340 |
struct {
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uint32_t tbadr; |
342 |
int16_t length; |
343 |
int16_t status; |
344 |
uint32_t misc; |
345 |
uint32_t res; |
346 |
} xda; |
347 |
xda.tbadr = cpu_to_le32(tmd->tbadr); |
348 |
xda.length = cpu_to_le16(tmd->length); |
349 |
xda.status = cpu_to_le16(tmd->status); |
350 |
xda.misc = cpu_to_le32(tmd->misc); |
351 |
xda.res = cpu_to_le32(tmd->res); |
352 |
if (BCR_SWSTYLE(s) == 3) { |
353 |
uint32_t tmp = xda.tbadr; |
354 |
xda.tbadr = xda.misc; |
355 |
xda.misc = tmp; |
356 |
} |
357 |
s->phys_mem_write(s->dma_opaque, addr, (void *)&xda, sizeof(xda), 0); |
358 |
} |
359 |
} |
360 |
|
361 |
static inline void pcnet_rmd_load(PCNetState *s, struct pcnet_RMD *rmd, |
362 |
hwaddr addr) |
363 |
{ |
364 |
if (!BCR_SSIZE32(s)) {
|
365 |
struct {
|
366 |
uint32_t rbadr; |
367 |
int16_t buf_length; |
368 |
int16_t msg_length; |
369 |
} rda; |
370 |
s->phys_mem_read(s->dma_opaque, addr, (void *)&rda, sizeof(rda), 0); |
371 |
rmd->rbadr = le32_to_cpu(rda.rbadr) & 0xffffff;
|
372 |
rmd->buf_length = le16_to_cpu(rda.buf_length); |
373 |
rmd->status = (le32_to_cpu(rda.rbadr) >> 16) & 0xff00; |
374 |
rmd->msg_length = le16_to_cpu(rda.msg_length); |
375 |
rmd->res = 0;
|
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} else {
|
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s->phys_mem_read(s->dma_opaque, addr, (void *)rmd, sizeof(*rmd), 0); |
378 |
le32_to_cpus(&rmd->rbadr); |
379 |
le16_to_cpus((uint16_t *)&rmd->buf_length); |
380 |
le16_to_cpus((uint16_t *)&rmd->status); |
381 |
le32_to_cpus(&rmd->msg_length); |
382 |
le32_to_cpus(&rmd->res); |
383 |
if (BCR_SWSTYLE(s) == 3) { |
384 |
uint32_t tmp = rmd->rbadr; |
385 |
rmd->rbadr = rmd->msg_length; |
386 |
rmd->msg_length = tmp; |
387 |
} |
388 |
} |
389 |
} |
390 |
|
391 |
static inline void pcnet_rmd_store(PCNetState *s, struct pcnet_RMD *rmd, |
392 |
hwaddr addr) |
393 |
{ |
394 |
if (!BCR_SSIZE32(s)) {
|
395 |
struct {
|
396 |
uint32_t rbadr; |
397 |
int16_t buf_length; |
398 |
int16_t msg_length; |
399 |
} rda; |
400 |
rda.rbadr = cpu_to_le32((rmd->rbadr & 0xffffff) |
|
401 |
((rmd->status & 0xff00) << 16)); |
402 |
rda.buf_length = cpu_to_le16(rmd->buf_length); |
403 |
rda.msg_length = cpu_to_le16(rmd->msg_length); |
404 |
s->phys_mem_write(s->dma_opaque, addr, (void *)&rda, sizeof(rda), 0); |
405 |
} else {
|
406 |
struct {
|
407 |
uint32_t rbadr; |
408 |
int16_t buf_length; |
409 |
int16_t status; |
410 |
uint32_t msg_length; |
411 |
uint32_t res; |
412 |
} rda; |
413 |
rda.rbadr = cpu_to_le32(rmd->rbadr); |
414 |
rda.buf_length = cpu_to_le16(rmd->buf_length); |
415 |
rda.status = cpu_to_le16(rmd->status); |
416 |
rda.msg_length = cpu_to_le32(rmd->msg_length); |
417 |
rda.res = cpu_to_le32(rmd->res); |
418 |
if (BCR_SWSTYLE(s) == 3) { |
419 |
uint32_t tmp = rda.rbadr; |
420 |
rda.rbadr = rda.msg_length; |
421 |
rda.msg_length = tmp; |
422 |
} |
423 |
s->phys_mem_write(s->dma_opaque, addr, (void *)&rda, sizeof(rda), 0); |
424 |
} |
425 |
} |
426 |
|
427 |
|
428 |
#define TMDLOAD(TMD,ADDR) pcnet_tmd_load(s,TMD,ADDR)
|
429 |
|
430 |
#define TMDSTORE(TMD,ADDR) pcnet_tmd_store(s,TMD,ADDR)
|
431 |
|
432 |
#define RMDLOAD(RMD,ADDR) pcnet_rmd_load(s,RMD,ADDR)
|
433 |
|
434 |
#define RMDSTORE(RMD,ADDR) pcnet_rmd_store(s,RMD,ADDR)
|
435 |
|
436 |
#if 1 |
437 |
|
438 |
#define CHECK_RMD(ADDR,RES) do { \ |
439 |
struct pcnet_RMD rmd; \
|
440 |
RMDLOAD(&rmd,(ADDR)); \ |
441 |
(RES) |= (GET_FIELD(rmd.buf_length, RMDL, ONES) != 15) \
|
442 |
|| (GET_FIELD(rmd.msg_length, RMDM, ZEROS) != 0); \
|
443 |
} while (0) |
444 |
|
445 |
#define CHECK_TMD(ADDR,RES) do { \ |
446 |
struct pcnet_TMD tmd; \
|
447 |
TMDLOAD(&tmd,(ADDR)); \ |
448 |
(RES) |= (GET_FIELD(tmd.length, TMDL, ONES) != 15); \
|
449 |
} while (0) |
450 |
|
451 |
#else
|
452 |
|
453 |
#define CHECK_RMD(ADDR,RES) do { \ |
454 |
switch (BCR_SWSTYLE(s)) { \
|
455 |
case 0x00: \ |
456 |
do { \
|
457 |
uint16_t rda[4]; \
|
458 |
s->phys_mem_read(s->dma_opaque, (ADDR), \ |
459 |
(void *)&rda[0], sizeof(rda), 0); \ |
460 |
(RES) |= (rda[2] & 0xf000)!=0xf000; \ |
461 |
(RES) |= (rda[3] & 0xf000)!=0x0000; \ |
462 |
} while (0); \ |
463 |
break; \
|
464 |
case 0x01: \ |
465 |
case 0x02: \ |
466 |
do { \
|
467 |
uint32_t rda[4]; \
|
468 |
s->phys_mem_read(s->dma_opaque, (ADDR), \ |
469 |
(void *)&rda[0], sizeof(rda), 0); \ |
470 |
(RES) |= (rda[1] & 0x0000f000L)!=0x0000f000L; \ |
471 |
(RES) |= (rda[2] & 0x0000f000L)!=0x00000000L; \ |
472 |
} while (0); \ |
473 |
break; \
|
474 |
case 0x03: \ |
475 |
do { \
|
476 |
uint32_t rda[4]; \
|
477 |
s->phys_mem_read(s->dma_opaque, (ADDR), \ |
478 |
(void *)&rda[0], sizeof(rda), 0); \ |
479 |
(RES) |= (rda[0] & 0x0000f000L)!=0x00000000L; \ |
480 |
(RES) |= (rda[1] & 0x0000f000L)!=0x0000f000L; \ |
481 |
} while (0); \ |
482 |
break; \
|
483 |
} \ |
484 |
} while (0) |
485 |
|
486 |
#define CHECK_TMD(ADDR,RES) do { \ |
487 |
switch (BCR_SWSTYLE(s)) { \
|
488 |
case 0x00: \ |
489 |
do { \
|
490 |
uint16_t xda[4]; \
|
491 |
s->phys_mem_read(s->dma_opaque, (ADDR), \ |
492 |
(void *)&xda[0], sizeof(xda), 0); \ |
493 |
(RES) |= (xda[2] & 0xf000)!=0xf000; \ |
494 |
} while (0); \ |
495 |
break; \
|
496 |
case 0x01: \ |
497 |
case 0x02: \ |
498 |
case 0x03: \ |
499 |
do { \
|
500 |
uint32_t xda[4]; \
|
501 |
s->phys_mem_read(s->dma_opaque, (ADDR), \ |
502 |
(void *)&xda[0], sizeof(xda), 0); \ |
503 |
(RES) |= (xda[1] & 0x0000f000L)!=0x0000f000L; \ |
504 |
} while (0); \ |
505 |
break; \
|
506 |
} \ |
507 |
} while (0) |
508 |
|
509 |
#endif
|
510 |
|
511 |
#define PRINT_PKTHDR(BUF) do { \ |
512 |
struct qemu_ether_header *hdr = (void *)(BUF); \ |
513 |
printf("packet dhost=%02x:%02x:%02x:%02x:%02x:%02x, " \
|
514 |
"shost=%02x:%02x:%02x:%02x:%02x:%02x, " \
|
515 |
"type=0x%04x\n", \
|
516 |
hdr->ether_dhost[0],hdr->ether_dhost[1],hdr->ether_dhost[2], \ |
517 |
hdr->ether_dhost[3],hdr->ether_dhost[4],hdr->ether_dhost[5], \ |
518 |
hdr->ether_shost[0],hdr->ether_shost[1],hdr->ether_shost[2], \ |
519 |
hdr->ether_shost[3],hdr->ether_shost[4],hdr->ether_shost[5], \ |
520 |
be16_to_cpu(hdr->ether_type)); \ |
521 |
} while (0) |
522 |
|
523 |
#define MULTICAST_FILTER_LEN 8 |
524 |
|
525 |
static inline uint32_t lnc_mchash(const uint8_t *ether_addr) |
526 |
{ |
527 |
#define LNC_POLYNOMIAL 0xEDB88320UL |
528 |
uint32_t crc = 0xFFFFFFFF;
|
529 |
int idx, bit;
|
530 |
uint8_t data; |
531 |
|
532 |
for (idx = 0; idx < 6; idx++) { |
533 |
for (data = *ether_addr++, bit = 0; bit < MULTICAST_FILTER_LEN; bit++) { |
534 |
crc = (crc >> 1) ^ (((crc ^ data) & 1) ? LNC_POLYNOMIAL : 0); |
535 |
data >>= 1;
|
536 |
} |
537 |
} |
538 |
return crc;
|
539 |
#undef LNC_POLYNOMIAL
|
540 |
} |
541 |
|
542 |
#define CRC(crc, ch) (crc = (crc >> 8) ^ crctab[(crc ^ (ch)) & 0xff]) |
543 |
|
544 |
/* generated using the AUTODIN II polynomial
|
545 |
* x^32 + x^26 + x^23 + x^22 + x^16 +
|
546 |
* x^12 + x^11 + x^10 + x^8 + x^7 + x^5 + x^4 + x^2 + x^1 + 1
|
547 |
*/
|
548 |
static const uint32_t crctab[256] = { |
549 |
0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, |
550 |
0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3, |
551 |
0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988, |
552 |
0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, |
553 |
0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de, |
554 |
0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, |
555 |
0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, |
556 |
0x14015c4f, 0x63066cd9, 0xfa0f3d63, 0x8d080df5, |
557 |
0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172, |
558 |
0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, |
559 |
0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, |
560 |
0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59, |
561 |
0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, |
562 |
0x21b4f4b5, 0x56b3c423, 0xcfba9599, 0xb8bda50f, |
563 |
0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, |
564 |
0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, |
565 |
0x76dc4190, 0x01db7106, 0x98d220bc, 0xefd5102a, |
566 |
0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433, |
567 |
0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, |
568 |
0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01, |
569 |
0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, |
570 |
0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, |
571 |
0x65b0d9c6, 0x12b7e950, 0x8bbeb8ea, 0xfcb9887c, |
572 |
0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65, |
573 |
0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, |
574 |
0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, |
575 |
0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0, |
576 |
0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, |
577 |
0x5005713c, 0x270241aa, 0xbe0b1010, 0xc90c2086, |
578 |
0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f, |
579 |
0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, |
580 |
0x59b33d17, 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, |
581 |
0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a, |
582 |
0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, |
583 |
0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8, |
584 |
0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, |
585 |
0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, |
586 |
0xf762575d, 0x806567cb, 0x196c3671, 0x6e6b06e7, |
587 |
0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc, |
588 |
0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, |
589 |
0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, |
590 |
0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b, |
591 |
0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, |
592 |
0xdf60efc3, 0xa867df55, 0x316e8eef, 0x4669be79, |
593 |
0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, |
594 |
0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, |
595 |
0xc5ba3bbe, 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, |
596 |
0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d, |
597 |
0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, |
598 |
0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713, |
599 |
0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, |
600 |
0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, |
601 |
0x86d3d2d4, 0xf1d4e242, 0x68ddb3f8, 0x1fda836e, |
602 |
0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777, |
603 |
0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, |
604 |
0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, |
605 |
0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2, |
606 |
0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, |
607 |
0xaed16a4a, 0xd9d65adc, 0x40df0b66, 0x37d83bf0, |
608 |
0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9, |
609 |
0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, |
610 |
0xbad03605, 0xcdd70693, 0x54de5729, 0x23d967bf, |
611 |
0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94, |
612 |
0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d, |
613 |
}; |
614 |
|
615 |
static inline int padr_match(PCNetState *s, const uint8_t *buf, int size) |
616 |
{ |
617 |
struct qemu_ether_header *hdr = (void *)buf; |
618 |
uint8_t padr[6] = {
|
619 |
s->csr[12] & 0xff, s->csr[12] >> 8, |
620 |
s->csr[13] & 0xff, s->csr[13] >> 8, |
621 |
s->csr[14] & 0xff, s->csr[14] >> 8 |
622 |
}; |
623 |
int result = (!CSR_DRCVPA(s)) && !memcmp(hdr->ether_dhost, padr, 6); |
624 |
#ifdef PCNET_DEBUG_MATCH
|
625 |
printf("packet dhost=%02x:%02x:%02x:%02x:%02x:%02x, "
|
626 |
"padr=%02x:%02x:%02x:%02x:%02x:%02x\n",
|
627 |
hdr->ether_dhost[0],hdr->ether_dhost[1],hdr->ether_dhost[2], |
628 |
hdr->ether_dhost[3],hdr->ether_dhost[4],hdr->ether_dhost[5], |
629 |
padr[0],padr[1],padr[2],padr[3],padr[4],padr[5]); |
630 |
printf("padr_match result=%d\n", result);
|
631 |
#endif
|
632 |
return result;
|
633 |
} |
634 |
|
635 |
static inline int padr_bcast(PCNetState *s, const uint8_t *buf, int size) |
636 |
{ |
637 |
static const uint8_t BCAST[6] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; |
638 |
struct qemu_ether_header *hdr = (void *)buf; |
639 |
int result = !CSR_DRCVBC(s) && !memcmp(hdr->ether_dhost, BCAST, 6); |
640 |
#ifdef PCNET_DEBUG_MATCH
|
641 |
printf("padr_bcast result=%d\n", result);
|
642 |
#endif
|
643 |
return result;
|
644 |
} |
645 |
|
646 |
static inline int ladr_match(PCNetState *s, const uint8_t *buf, int size) |
647 |
{ |
648 |
struct qemu_ether_header *hdr = (void *)buf; |
649 |
if ((*(hdr->ether_dhost)&0x01) && |
650 |
((uint64_t *)&s->csr[8])[0] != 0LL) { |
651 |
uint8_t ladr[8] = {
|
652 |
s->csr[8] & 0xff, s->csr[8] >> 8, |
653 |
s->csr[9] & 0xff, s->csr[9] >> 8, |
654 |
s->csr[10] & 0xff, s->csr[10] >> 8, |
655 |
s->csr[11] & 0xff, s->csr[11] >> 8 |
656 |
}; |
657 |
int index = lnc_mchash(hdr->ether_dhost) >> 26; |
658 |
return !!(ladr[index >> 3] & (1 << (index & 7))); |
659 |
} |
660 |
return 0; |
661 |
} |
662 |
|
663 |
static inline hwaddr pcnet_rdra_addr(PCNetState *s, int idx) |
664 |
{ |
665 |
while (idx < 1) idx += CSR_RCVRL(s); |
666 |
return s->rdra + ((CSR_RCVRL(s) - idx) * (BCR_SWSTYLE(s) ? 16 : 8)); |
667 |
} |
668 |
|
669 |
static inline int64_t pcnet_get_next_poll_time(PCNetState *s, int64_t current_time) |
670 |
{ |
671 |
int64_t next_time = current_time + |
672 |
muldiv64(65536 - (CSR_SPND(s) ? 0 : CSR_POLL(s)), |
673 |
get_ticks_per_sec(), 33000000L);
|
674 |
if (next_time <= current_time)
|
675 |
next_time = current_time + 1;
|
676 |
return next_time;
|
677 |
} |
678 |
|
679 |
static void pcnet_poll(PCNetState *s); |
680 |
static void pcnet_poll_timer(void *opaque); |
681 |
|
682 |
static uint32_t pcnet_csr_readw(PCNetState *s, uint32_t rap);
|
683 |
static void pcnet_csr_writew(PCNetState *s, uint32_t rap, uint32_t new_value); |
684 |
static void pcnet_bcr_writew(PCNetState *s, uint32_t rap, uint32_t val); |
685 |
|
686 |
static void pcnet_s_reset(PCNetState *s) |
687 |
{ |
688 |
#ifdef PCNET_DEBUG
|
689 |
printf("pcnet_s_reset\n");
|
690 |
#endif
|
691 |
|
692 |
s->rdra = 0;
|
693 |
s->tdra = 0;
|
694 |
s->rap = 0;
|
695 |
|
696 |
s->bcr[BCR_BSBC] &= ~0x0080;
|
697 |
|
698 |
s->csr[0] = 0x0004; |
699 |
s->csr[3] = 0x0000; |
700 |
s->csr[4] = 0x0115; |
701 |
s->csr[5] = 0x0000; |
702 |
s->csr[6] = 0x0000; |
703 |
s->csr[8] = 0; |
704 |
s->csr[9] = 0; |
705 |
s->csr[10] = 0; |
706 |
s->csr[11] = 0; |
707 |
s->csr[12] = le16_to_cpu(((uint16_t *)&s->prom[0])[0]); |
708 |
s->csr[13] = le16_to_cpu(((uint16_t *)&s->prom[0])[1]); |
709 |
s->csr[14] = le16_to_cpu(((uint16_t *)&s->prom[0])[2]); |
710 |
s->csr[15] &= 0x21c4; |
711 |
s->csr[72] = 1; |
712 |
s->csr[74] = 1; |
713 |
s->csr[76] = 1; |
714 |
s->csr[78] = 1; |
715 |
s->csr[80] = 0x1410; |
716 |
s->csr[88] = 0x1003; |
717 |
s->csr[89] = 0x0262; |
718 |
s->csr[94] = 0x0000; |
719 |
s->csr[100] = 0x0200; |
720 |
s->csr[103] = 0x0105; |
721 |
s->csr[103] = 0x0105; |
722 |
s->csr[112] = 0x0000; |
723 |
s->csr[114] = 0x0000; |
724 |
s->csr[122] = 0x0000; |
725 |
s->csr[124] = 0x0000; |
726 |
|
727 |
s->tx_busy = 0;
|
728 |
} |
729 |
|
730 |
static void pcnet_update_irq(PCNetState *s) |
731 |
{ |
732 |
int isr = 0; |
733 |
s->csr[0] &= ~0x0080; |
734 |
|
735 |
#if 1 |
736 |
if (((s->csr[0] & ~s->csr[3]) & 0x5f00) || |
737 |
(((s->csr[4]>>1) & ~s->csr[4]) & 0x0115) || |
738 |
(((s->csr[5]>>1) & s->csr[5]) & 0x0048)) |
739 |
#else
|
740 |
if ((!(s->csr[3] & 0x4000) && !!(s->csr[0] & 0x4000)) /* BABL */ || |
741 |
(!(s->csr[3] & 0x1000) && !!(s->csr[0] & 0x1000)) /* MISS */ || |
742 |
(!(s->csr[3] & 0x0100) && !!(s->csr[0] & 0x0100)) /* IDON */ || |
743 |
(!(s->csr[3] & 0x0200) && !!(s->csr[0] & 0x0200)) /* TINT */ || |
744 |
(!(s->csr[3] & 0x0400) && !!(s->csr[0] & 0x0400)) /* RINT */ || |
745 |
(!(s->csr[3] & 0x0800) && !!(s->csr[0] & 0x0800)) /* MERR */ || |
746 |
(!(s->csr[4] & 0x0001) && !!(s->csr[4] & 0x0002)) /* JAB */ || |
747 |
(!(s->csr[4] & 0x0004) && !!(s->csr[4] & 0x0008)) /* TXSTRT */ || |
748 |
(!(s->csr[4] & 0x0010) && !!(s->csr[4] & 0x0020)) /* RCVO */ || |
749 |
(!(s->csr[4] & 0x0100) && !!(s->csr[4] & 0x0200)) /* MFCO */ || |
750 |
(!!(s->csr[5] & 0x0040) && !!(s->csr[5] & 0x0080)) /* EXDINT */ || |
751 |
(!!(s->csr[5] & 0x0008) && !!(s->csr[5] & 0x0010)) /* MPINT */) |
752 |
#endif
|
753 |
{ |
754 |
|
755 |
isr = CSR_INEA(s); |
756 |
s->csr[0] |= 0x0080; |
757 |
} |
758 |
|
759 |
if (!!(s->csr[4] & 0x0080) && CSR_INEA(s)) { /* UINT */ |
760 |
s->csr[4] &= ~0x0080; |
761 |
s->csr[4] |= 0x0040; |
762 |
s->csr[0] |= 0x0080; |
763 |
isr = 1;
|
764 |
#ifdef PCNET_DEBUG
|
765 |
printf("pcnet user int\n");
|
766 |
#endif
|
767 |
} |
768 |
|
769 |
#if 1 |
770 |
if (((s->csr[5]>>1) & s->csr[5]) & 0x0500) |
771 |
#else
|
772 |
if ((!!(s->csr[5] & 0x0400) && !!(s->csr[5] & 0x0800)) /* SINT */ || |
773 |
(!!(s->csr[5] & 0x0100) && !!(s->csr[5] & 0x0200)) /* SLPINT */ ) |
774 |
#endif
|
775 |
{ |
776 |
isr = 1;
|
777 |
s->csr[0] |= 0x0080; |
778 |
} |
779 |
|
780 |
if (isr != s->isr) {
|
781 |
#ifdef PCNET_DEBUG
|
782 |
printf("pcnet: INTA=%d\n", isr);
|
783 |
#endif
|
784 |
} |
785 |
qemu_set_irq(s->irq, isr); |
786 |
s->isr = isr; |
787 |
} |
788 |
|
789 |
static void pcnet_init(PCNetState *s) |
790 |
{ |
791 |
int rlen, tlen;
|
792 |
uint16_t padr[3], ladrf[4], mode; |
793 |
uint32_t rdra, tdra; |
794 |
|
795 |
#ifdef PCNET_DEBUG
|
796 |
printf("pcnet_init init_addr=0x%08x\n", PHYSADDR(s,CSR_IADR(s)));
|
797 |
#endif
|
798 |
|
799 |
if (BCR_SSIZE32(s)) {
|
800 |
struct pcnet_initblk32 initblk;
|
801 |
s->phys_mem_read(s->dma_opaque, PHYSADDR(s,CSR_IADR(s)), |
802 |
(uint8_t *)&initblk, sizeof(initblk), 0); |
803 |
mode = le16_to_cpu(initblk.mode); |
804 |
rlen = initblk.rlen >> 4;
|
805 |
tlen = initblk.tlen >> 4;
|
806 |
ladrf[0] = le16_to_cpu(initblk.ladrf[0]); |
807 |
ladrf[1] = le16_to_cpu(initblk.ladrf[1]); |
808 |
ladrf[2] = le16_to_cpu(initblk.ladrf[2]); |
809 |
ladrf[3] = le16_to_cpu(initblk.ladrf[3]); |
810 |
padr[0] = le16_to_cpu(initblk.padr[0]); |
811 |
padr[1] = le16_to_cpu(initblk.padr[1]); |
812 |
padr[2] = le16_to_cpu(initblk.padr[2]); |
813 |
rdra = le32_to_cpu(initblk.rdra); |
814 |
tdra = le32_to_cpu(initblk.tdra); |
815 |
} else {
|
816 |
struct pcnet_initblk16 initblk;
|
817 |
s->phys_mem_read(s->dma_opaque, PHYSADDR(s,CSR_IADR(s)), |
818 |
(uint8_t *)&initblk, sizeof(initblk), 0); |
819 |
mode = le16_to_cpu(initblk.mode); |
820 |
ladrf[0] = le16_to_cpu(initblk.ladrf[0]); |
821 |
ladrf[1] = le16_to_cpu(initblk.ladrf[1]); |
822 |
ladrf[2] = le16_to_cpu(initblk.ladrf[2]); |
823 |
ladrf[3] = le16_to_cpu(initblk.ladrf[3]); |
824 |
padr[0] = le16_to_cpu(initblk.padr[0]); |
825 |
padr[1] = le16_to_cpu(initblk.padr[1]); |
826 |
padr[2] = le16_to_cpu(initblk.padr[2]); |
827 |
rdra = le32_to_cpu(initblk.rdra); |
828 |
tdra = le32_to_cpu(initblk.tdra); |
829 |
rlen = rdra >> 29;
|
830 |
tlen = tdra >> 29;
|
831 |
rdra &= 0x00ffffff;
|
832 |
tdra &= 0x00ffffff;
|
833 |
} |
834 |
|
835 |
#if defined(PCNET_DEBUG)
|
836 |
printf("rlen=%d tlen=%d\n", rlen, tlen);
|
837 |
#endif
|
838 |
|
839 |
CSR_RCVRL(s) = (rlen < 9) ? (1 << rlen) : 512; |
840 |
CSR_XMTRL(s) = (tlen < 9) ? (1 << tlen) : 512; |
841 |
s->csr[ 6] = (tlen << 12) | (rlen << 8); |
842 |
s->csr[15] = mode;
|
843 |
s->csr[ 8] = ladrf[0]; |
844 |
s->csr[ 9] = ladrf[1]; |
845 |
s->csr[10] = ladrf[2]; |
846 |
s->csr[11] = ladrf[3]; |
847 |
s->csr[12] = padr[0]; |
848 |
s->csr[13] = padr[1]; |
849 |
s->csr[14] = padr[2]; |
850 |
s->rdra = PHYSADDR(s, rdra); |
851 |
s->tdra = PHYSADDR(s, tdra); |
852 |
|
853 |
CSR_RCVRC(s) = CSR_RCVRL(s); |
854 |
CSR_XMTRC(s) = CSR_XMTRL(s); |
855 |
|
856 |
#ifdef PCNET_DEBUG
|
857 |
printf("pcnet ss32=%d rdra=0x%08x[%d] tdra=0x%08x[%d]\n",
|
858 |
BCR_SSIZE32(s), |
859 |
s->rdra, CSR_RCVRL(s), s->tdra, CSR_XMTRL(s)); |
860 |
#endif
|
861 |
|
862 |
s->csr[0] |= 0x0101; |
863 |
s->csr[0] &= ~0x0004; /* clear STOP bit */ |
864 |
} |
865 |
|
866 |
static void pcnet_start(PCNetState *s) |
867 |
{ |
868 |
#ifdef PCNET_DEBUG
|
869 |
printf("pcnet_start\n");
|
870 |
#endif
|
871 |
|
872 |
if (!CSR_DTX(s))
|
873 |
s->csr[0] |= 0x0010; /* set TXON */ |
874 |
|
875 |
if (!CSR_DRX(s))
|
876 |
s->csr[0] |= 0x0020; /* set RXON */ |
877 |
|
878 |
s->csr[0] &= ~0x0004; /* clear STOP bit */ |
879 |
s->csr[0] |= 0x0002; |
880 |
pcnet_poll_timer(s); |
881 |
} |
882 |
|
883 |
static void pcnet_stop(PCNetState *s) |
884 |
{ |
885 |
#ifdef PCNET_DEBUG
|
886 |
printf("pcnet_stop\n");
|
887 |
#endif
|
888 |
s->csr[0] &= ~0xffeb; |
889 |
s->csr[0] |= 0x0014; |
890 |
s->csr[4] &= ~0x02c2; |
891 |
s->csr[5] &= ~0x0011; |
892 |
pcnet_poll_timer(s); |
893 |
} |
894 |
|
895 |
static void pcnet_rdte_poll(PCNetState *s) |
896 |
{ |
897 |
s->csr[28] = s->csr[29] = 0; |
898 |
if (s->rdra) {
|
899 |
int bad = 0; |
900 |
#if 1 |
901 |
hwaddr crda = pcnet_rdra_addr(s, CSR_RCVRC(s)); |
902 |
hwaddr nrda = pcnet_rdra_addr(s, -1 + CSR_RCVRC(s));
|
903 |
hwaddr nnrd = pcnet_rdra_addr(s, -2 + CSR_RCVRC(s));
|
904 |
#else
|
905 |
hwaddr crda = s->rdra + |
906 |
(CSR_RCVRL(s) - CSR_RCVRC(s)) * |
907 |
(BCR_SWSTYLE(s) ? 16 : 8 ); |
908 |
int nrdc = CSR_RCVRC(s)<=1 ? CSR_RCVRL(s) : CSR_RCVRC(s)-1; |
909 |
hwaddr nrda = s->rdra + |
910 |
(CSR_RCVRL(s) - nrdc) * |
911 |
(BCR_SWSTYLE(s) ? 16 : 8 ); |
912 |
int nnrc = nrdc<=1 ? CSR_RCVRL(s) : nrdc-1; |
913 |
hwaddr nnrd = s->rdra + |
914 |
(CSR_RCVRL(s) - nnrc) * |
915 |
(BCR_SWSTYLE(s) ? 16 : 8 ); |
916 |
#endif
|
917 |
|
918 |
CHECK_RMD(crda, bad); |
919 |
if (!bad) {
|
920 |
CHECK_RMD(nrda, bad); |
921 |
if (bad || (nrda == crda)) nrda = 0; |
922 |
CHECK_RMD(nnrd, bad); |
923 |
if (bad || (nnrd == crda)) nnrd = 0; |
924 |
|
925 |
s->csr[28] = crda & 0xffff; |
926 |
s->csr[29] = crda >> 16; |
927 |
s->csr[26] = nrda & 0xffff; |
928 |
s->csr[27] = nrda >> 16; |
929 |
s->csr[36] = nnrd & 0xffff; |
930 |
s->csr[37] = nnrd >> 16; |
931 |
#ifdef PCNET_DEBUG
|
932 |
if (bad) {
|
933 |
printf("pcnet: BAD RMD RECORDS AFTER 0x" TARGET_FMT_plx "\n", |
934 |
crda); |
935 |
} |
936 |
} else {
|
937 |
printf("pcnet: BAD RMD RDA=0x" TARGET_FMT_plx "\n", |
938 |
crda); |
939 |
#endif
|
940 |
} |
941 |
} |
942 |
|
943 |
if (CSR_CRDA(s)) {
|
944 |
struct pcnet_RMD rmd;
|
945 |
RMDLOAD(&rmd, PHYSADDR(s,CSR_CRDA(s))); |
946 |
CSR_CRBC(s) = GET_FIELD(rmd.buf_length, RMDL, BCNT); |
947 |
CSR_CRST(s) = rmd.status; |
948 |
#ifdef PCNET_DEBUG_RMD_X
|
949 |
printf("CRDA=0x%08x CRST=0x%04x RCVRC=%d RMDL=0x%04x RMDS=0x%04x RMDM=0x%08x\n",
|
950 |
PHYSADDR(s,CSR_CRDA(s)), CSR_CRST(s), CSR_RCVRC(s), |
951 |
rmd.buf_length, rmd.status, rmd.msg_length); |
952 |
PRINT_RMD(&rmd); |
953 |
#endif
|
954 |
} else {
|
955 |
CSR_CRBC(s) = CSR_CRST(s) = 0;
|
956 |
} |
957 |
|
958 |
if (CSR_NRDA(s)) {
|
959 |
struct pcnet_RMD rmd;
|
960 |
RMDLOAD(&rmd, PHYSADDR(s,CSR_NRDA(s))); |
961 |
CSR_NRBC(s) = GET_FIELD(rmd.buf_length, RMDL, BCNT); |
962 |
CSR_NRST(s) = rmd.status; |
963 |
} else {
|
964 |
CSR_NRBC(s) = CSR_NRST(s) = 0;
|
965 |
} |
966 |
|
967 |
} |
968 |
|
969 |
static int pcnet_tdte_poll(PCNetState *s) |
970 |
{ |
971 |
s->csr[34] = s->csr[35] = 0; |
972 |
if (s->tdra) {
|
973 |
hwaddr cxda = s->tdra + |
974 |
(CSR_XMTRL(s) - CSR_XMTRC(s)) * |
975 |
(BCR_SWSTYLE(s) ? 16 : 8); |
976 |
int bad = 0; |
977 |
CHECK_TMD(cxda, bad); |
978 |
if (!bad) {
|
979 |
if (CSR_CXDA(s) != cxda) {
|
980 |
s->csr[60] = s->csr[34]; |
981 |
s->csr[61] = s->csr[35]; |
982 |
s->csr[62] = CSR_CXBC(s);
|
983 |
s->csr[63] = CSR_CXST(s);
|
984 |
} |
985 |
s->csr[34] = cxda & 0xffff; |
986 |
s->csr[35] = cxda >> 16; |
987 |
#ifdef PCNET_DEBUG_X
|
988 |
printf("pcnet: BAD TMD XDA=0x%08x\n", cxda);
|
989 |
#endif
|
990 |
} |
991 |
} |
992 |
|
993 |
if (CSR_CXDA(s)) {
|
994 |
struct pcnet_TMD tmd;
|
995 |
|
996 |
TMDLOAD(&tmd, PHYSADDR(s,CSR_CXDA(s))); |
997 |
|
998 |
CSR_CXBC(s) = GET_FIELD(tmd.length, TMDL, BCNT); |
999 |
CSR_CXST(s) = tmd.status; |
1000 |
} else {
|
1001 |
CSR_CXBC(s) = CSR_CXST(s) = 0;
|
1002 |
} |
1003 |
|
1004 |
return !!(CSR_CXST(s) & 0x8000); |
1005 |
} |
1006 |
|
1007 |
int pcnet_can_receive(NetClientState *nc)
|
1008 |
{ |
1009 |
PCNetState *s = qemu_get_nic_opaque(nc); |
1010 |
if (CSR_STOP(s) || CSR_SPND(s))
|
1011 |
return 0; |
1012 |
|
1013 |
return sizeof(s->buffer)-16; |
1014 |
} |
1015 |
|
1016 |
#define MIN_BUF_SIZE 60 |
1017 |
|
1018 |
ssize_t pcnet_receive(NetClientState *nc, const uint8_t *buf, size_t size_)
|
1019 |
{ |
1020 |
PCNetState *s = qemu_get_nic_opaque(nc); |
1021 |
int is_padr = 0, is_bcast = 0, is_ladr = 0; |
1022 |
uint8_t buf1[60];
|
1023 |
int remaining;
|
1024 |
int crc_err = 0; |
1025 |
int size = size_;
|
1026 |
|
1027 |
if (CSR_DRX(s) || CSR_STOP(s) || CSR_SPND(s) || !size ||
|
1028 |
(CSR_LOOP(s) && !s->looptest)) { |
1029 |
return -1; |
1030 |
} |
1031 |
#ifdef PCNET_DEBUG
|
1032 |
printf("pcnet_receive size=%d\n", size);
|
1033 |
#endif
|
1034 |
|
1035 |
/* if too small buffer, then expand it */
|
1036 |
if (size < MIN_BUF_SIZE) {
|
1037 |
memcpy(buf1, buf, size); |
1038 |
memset(buf1 + size, 0, MIN_BUF_SIZE - size);
|
1039 |
buf = buf1; |
1040 |
size = MIN_BUF_SIZE; |
1041 |
} |
1042 |
|
1043 |
if (CSR_PROM(s)
|
1044 |
|| (is_padr=padr_match(s, buf, size)) |
1045 |
|| (is_bcast=padr_bcast(s, buf, size)) |
1046 |
|| (is_ladr=ladr_match(s, buf, size))) { |
1047 |
|
1048 |
pcnet_rdte_poll(s); |
1049 |
|
1050 |
if (!(CSR_CRST(s) & 0x8000) && s->rdra) { |
1051 |
struct pcnet_RMD rmd;
|
1052 |
int rcvrc = CSR_RCVRC(s)-1,i; |
1053 |
hwaddr nrda; |
1054 |
for (i = CSR_RCVRL(s)-1; i > 0; i--, rcvrc--) { |
1055 |
if (rcvrc <= 1) |
1056 |
rcvrc = CSR_RCVRL(s); |
1057 |
nrda = s->rdra + |
1058 |
(CSR_RCVRL(s) - rcvrc) * |
1059 |
(BCR_SWSTYLE(s) ? 16 : 8 ); |
1060 |
RMDLOAD(&rmd, nrda); |
1061 |
if (GET_FIELD(rmd.status, RMDS, OWN)) {
|
1062 |
#ifdef PCNET_DEBUG_RMD
|
1063 |
printf("pcnet - scan buffer: RCVRC=%d PREV_RCVRC=%d\n",
|
1064 |
rcvrc, CSR_RCVRC(s)); |
1065 |
#endif
|
1066 |
CSR_RCVRC(s) = rcvrc; |
1067 |
pcnet_rdte_poll(s); |
1068 |
break;
|
1069 |
} |
1070 |
} |
1071 |
} |
1072 |
|
1073 |
if (!(CSR_CRST(s) & 0x8000)) { |
1074 |
#ifdef PCNET_DEBUG_RMD
|
1075 |
printf("pcnet - no buffer: RCVRC=%d\n", CSR_RCVRC(s));
|
1076 |
#endif
|
1077 |
s->csr[0] |= 0x1000; /* Set MISS flag */ |
1078 |
CSR_MISSC(s)++; |
1079 |
} else {
|
1080 |
uint8_t *src = s->buffer; |
1081 |
hwaddr crda = CSR_CRDA(s); |
1082 |
struct pcnet_RMD rmd;
|
1083 |
int pktcount = 0; |
1084 |
|
1085 |
if (!s->looptest) {
|
1086 |
memcpy(src, buf, size); |
1087 |
/* no need to compute the CRC */
|
1088 |
src[size] = 0;
|
1089 |
src[size + 1] = 0; |
1090 |
src[size + 2] = 0; |
1091 |
src[size + 3] = 0; |
1092 |
size += 4;
|
1093 |
} else if (s->looptest == PCNET_LOOPTEST_CRC || |
1094 |
!CSR_DXMTFCS(s) || size < MIN_BUF_SIZE+4) {
|
1095 |
uint32_t fcs = ~0;
|
1096 |
uint8_t *p = src; |
1097 |
|
1098 |
while (p != &src[size])
|
1099 |
CRC(fcs, *p++); |
1100 |
*(uint32_t *)p = htonl(fcs); |
1101 |
size += 4;
|
1102 |
} else {
|
1103 |
uint32_t fcs = ~0;
|
1104 |
uint8_t *p = src; |
1105 |
|
1106 |
while (p != &src[size-4]) |
1107 |
CRC(fcs, *p++); |
1108 |
crc_err = (*(uint32_t *)p != htonl(fcs)); |
1109 |
} |
1110 |
|
1111 |
#ifdef PCNET_DEBUG_MATCH
|
1112 |
PRINT_PKTHDR(buf); |
1113 |
#endif
|
1114 |
|
1115 |
RMDLOAD(&rmd, PHYSADDR(s,crda)); |
1116 |
/*if (!CSR_LAPPEN(s))*/
|
1117 |
SET_FIELD(&rmd.status, RMDS, STP, 1);
|
1118 |
|
1119 |
#define PCNET_RECV_STORE() do { \ |
1120 |
int count = MIN(4096 - GET_FIELD(rmd.buf_length, RMDL, BCNT),remaining); \ |
1121 |
hwaddr rbadr = PHYSADDR(s, rmd.rbadr); \ |
1122 |
s->phys_mem_write(s->dma_opaque, rbadr, src, count, CSR_BSWP(s)); \ |
1123 |
src += count; remaining -= count; \ |
1124 |
SET_FIELD(&rmd.status, RMDS, OWN, 0); \
|
1125 |
RMDSTORE(&rmd, PHYSADDR(s,crda)); \ |
1126 |
pktcount++; \ |
1127 |
} while (0) |
1128 |
|
1129 |
remaining = size; |
1130 |
PCNET_RECV_STORE(); |
1131 |
if ((remaining > 0) && CSR_NRDA(s)) { |
1132 |
hwaddr nrda = CSR_NRDA(s); |
1133 |
#ifdef PCNET_DEBUG_RMD
|
1134 |
PRINT_RMD(&rmd); |
1135 |
#endif
|
1136 |
RMDLOAD(&rmd, PHYSADDR(s,nrda)); |
1137 |
if (GET_FIELD(rmd.status, RMDS, OWN)) {
|
1138 |
crda = nrda; |
1139 |
PCNET_RECV_STORE(); |
1140 |
#ifdef PCNET_DEBUG_RMD
|
1141 |
PRINT_RMD(&rmd); |
1142 |
#endif
|
1143 |
if ((remaining > 0) && (nrda=CSR_NNRD(s))) { |
1144 |
RMDLOAD(&rmd, PHYSADDR(s,nrda)); |
1145 |
if (GET_FIELD(rmd.status, RMDS, OWN)) {
|
1146 |
crda = nrda; |
1147 |
PCNET_RECV_STORE(); |
1148 |
} |
1149 |
} |
1150 |
} |
1151 |
} |
1152 |
|
1153 |
#undef PCNET_RECV_STORE
|
1154 |
|
1155 |
RMDLOAD(&rmd, PHYSADDR(s,crda)); |
1156 |
if (remaining == 0) { |
1157 |
SET_FIELD(&rmd.msg_length, RMDM, MCNT, size); |
1158 |
SET_FIELD(&rmd.status, RMDS, ENP, 1);
|
1159 |
SET_FIELD(&rmd.status, RMDS, PAM, !CSR_PROM(s) && is_padr); |
1160 |
SET_FIELD(&rmd.status, RMDS, LFAM, !CSR_PROM(s) && is_ladr); |
1161 |
SET_FIELD(&rmd.status, RMDS, BAM, !CSR_PROM(s) && is_bcast); |
1162 |
if (crc_err) {
|
1163 |
SET_FIELD(&rmd.status, RMDS, CRC, 1);
|
1164 |
SET_FIELD(&rmd.status, RMDS, ERR, 1);
|
1165 |
} |
1166 |
} else {
|
1167 |
SET_FIELD(&rmd.status, RMDS, OFLO, 1);
|
1168 |
SET_FIELD(&rmd.status, RMDS, BUFF, 1);
|
1169 |
SET_FIELD(&rmd.status, RMDS, ERR, 1);
|
1170 |
} |
1171 |
RMDSTORE(&rmd, PHYSADDR(s,crda)); |
1172 |
s->csr[0] |= 0x0400; |
1173 |
|
1174 |
#ifdef PCNET_DEBUG
|
1175 |
printf("RCVRC=%d CRDA=0x%08x BLKS=%d\n",
|
1176 |
CSR_RCVRC(s), PHYSADDR(s,CSR_CRDA(s)), pktcount); |
1177 |
#endif
|
1178 |
#ifdef PCNET_DEBUG_RMD
|
1179 |
PRINT_RMD(&rmd); |
1180 |
#endif
|
1181 |
|
1182 |
while (pktcount--) {
|
1183 |
if (CSR_RCVRC(s) <= 1) |
1184 |
CSR_RCVRC(s) = CSR_RCVRL(s); |
1185 |
else
|
1186 |
CSR_RCVRC(s)--; |
1187 |
} |
1188 |
|
1189 |
pcnet_rdte_poll(s); |
1190 |
|
1191 |
} |
1192 |
} |
1193 |
|
1194 |
pcnet_poll(s); |
1195 |
pcnet_update_irq(s); |
1196 |
|
1197 |
return size_;
|
1198 |
} |
1199 |
|
1200 |
void pcnet_set_link_status(NetClientState *nc)
|
1201 |
{ |
1202 |
PCNetState *d = qemu_get_nic_opaque(nc); |
1203 |
|
1204 |
d->lnkst = nc->link_down ? 0 : 0x40; |
1205 |
} |
1206 |
|
1207 |
static void pcnet_transmit(PCNetState *s) |
1208 |
{ |
1209 |
hwaddr xmit_cxda = 0;
|
1210 |
int count = CSR_XMTRL(s)-1; |
1211 |
int add_crc = 0; |
1212 |
|
1213 |
s->xmit_pos = -1;
|
1214 |
|
1215 |
if (!CSR_TXON(s)) {
|
1216 |
s->csr[0] &= ~0x0008; |
1217 |
return;
|
1218 |
} |
1219 |
|
1220 |
s->tx_busy = 1;
|
1221 |
|
1222 |
txagain:
|
1223 |
if (pcnet_tdte_poll(s)) {
|
1224 |
struct pcnet_TMD tmd;
|
1225 |
|
1226 |
TMDLOAD(&tmd, PHYSADDR(s,CSR_CXDA(s))); |
1227 |
|
1228 |
#ifdef PCNET_DEBUG_TMD
|
1229 |
printf(" TMDLOAD 0x%08x\n", PHYSADDR(s,CSR_CXDA(s)));
|
1230 |
PRINT_TMD(&tmd); |
1231 |
#endif
|
1232 |
if (GET_FIELD(tmd.status, TMDS, STP)) {
|
1233 |
s->xmit_pos = 0;
|
1234 |
xmit_cxda = PHYSADDR(s,CSR_CXDA(s)); |
1235 |
if (BCR_SWSTYLE(s) != 1) |
1236 |
add_crc = GET_FIELD(tmd.status, TMDS, ADDFCS); |
1237 |
} |
1238 |
if (s->lnkst == 0 && |
1239 |
(!CSR_LOOP(s) || (!CSR_INTL(s) && !BCR_TMAULOOP(s)))) { |
1240 |
SET_FIELD(&tmd.misc, TMDM, LCAR, 1);
|
1241 |
SET_FIELD(&tmd.status, TMDS, ERR, 1);
|
1242 |
SET_FIELD(&tmd.status, TMDS, OWN, 0);
|
1243 |
s->csr[0] |= 0xa000; /* ERR | CERR */ |
1244 |
s->xmit_pos = -1;
|
1245 |
goto txdone;
|
1246 |
} |
1247 |
if (!GET_FIELD(tmd.status, TMDS, ENP)) {
|
1248 |
int bcnt = 4096 - GET_FIELD(tmd.length, TMDL, BCNT); |
1249 |
s->phys_mem_read(s->dma_opaque, PHYSADDR(s, tmd.tbadr), |
1250 |
s->buffer + s->xmit_pos, bcnt, CSR_BSWP(s)); |
1251 |
s->xmit_pos += bcnt; |
1252 |
} else if (s->xmit_pos >= 0) { |
1253 |
int bcnt = 4096 - GET_FIELD(tmd.length, TMDL, BCNT); |
1254 |
s->phys_mem_read(s->dma_opaque, PHYSADDR(s, tmd.tbadr), |
1255 |
s->buffer + s->xmit_pos, bcnt, CSR_BSWP(s)); |
1256 |
s->xmit_pos += bcnt; |
1257 |
#ifdef PCNET_DEBUG
|
1258 |
printf("pcnet_transmit size=%d\n", s->xmit_pos);
|
1259 |
#endif
|
1260 |
if (CSR_LOOP(s)) {
|
1261 |
if (BCR_SWSTYLE(s) == 1) |
1262 |
add_crc = !GET_FIELD(tmd.status, TMDS, NOFCS); |
1263 |
s->looptest = add_crc ? PCNET_LOOPTEST_CRC : PCNET_LOOPTEST_NOCRC; |
1264 |
pcnet_receive(qemu_get_queue(s->nic), s->buffer, s->xmit_pos); |
1265 |
s->looptest = 0;
|
1266 |
} else
|
1267 |
if (s->nic)
|
1268 |
qemu_send_packet(qemu_get_queue(s->nic), s->buffer, |
1269 |
s->xmit_pos); |
1270 |
|
1271 |
s->csr[0] &= ~0x0008; /* clear TDMD */ |
1272 |
s->csr[4] |= 0x0004; /* set TXSTRT */ |
1273 |
s->xmit_pos = -1;
|
1274 |
} |
1275 |
|
1276 |
txdone:
|
1277 |
SET_FIELD(&tmd.status, TMDS, OWN, 0);
|
1278 |
TMDSTORE(&tmd, PHYSADDR(s,CSR_CXDA(s))); |
1279 |
if (!CSR_TOKINTD(s) || (CSR_LTINTEN(s) && GET_FIELD(tmd.status, TMDS, LTINT)))
|
1280 |
s->csr[0] |= 0x0200; /* set TINT */ |
1281 |
|
1282 |
if (CSR_XMTRC(s)<=1) |
1283 |
CSR_XMTRC(s) = CSR_XMTRL(s); |
1284 |
else
|
1285 |
CSR_XMTRC(s)--; |
1286 |
if (count--)
|
1287 |
goto txagain;
|
1288 |
|
1289 |
} else
|
1290 |
if (s->xmit_pos >= 0) { |
1291 |
struct pcnet_TMD tmd;
|
1292 |
TMDLOAD(&tmd, xmit_cxda); |
1293 |
SET_FIELD(&tmd.misc, TMDM, BUFF, 1);
|
1294 |
SET_FIELD(&tmd.misc, TMDM, UFLO, 1);
|
1295 |
SET_FIELD(&tmd.status, TMDS, ERR, 1);
|
1296 |
SET_FIELD(&tmd.status, TMDS, OWN, 0);
|
1297 |
TMDSTORE(&tmd, xmit_cxda); |
1298 |
s->csr[0] |= 0x0200; /* set TINT */ |
1299 |
if (!CSR_DXSUFLO(s)) {
|
1300 |
s->csr[0] &= ~0x0010; |
1301 |
} else
|
1302 |
if (count--)
|
1303 |
goto txagain;
|
1304 |
} |
1305 |
|
1306 |
s->tx_busy = 0;
|
1307 |
} |
1308 |
|
1309 |
static void pcnet_poll(PCNetState *s) |
1310 |
{ |
1311 |
if (CSR_RXON(s)) {
|
1312 |
pcnet_rdte_poll(s); |
1313 |
} |
1314 |
|
1315 |
if (CSR_TDMD(s) ||
|
1316 |
(CSR_TXON(s) && !CSR_DPOLL(s) && pcnet_tdte_poll(s))) |
1317 |
{ |
1318 |
/* prevent recursion */
|
1319 |
if (s->tx_busy)
|
1320 |
return;
|
1321 |
|
1322 |
pcnet_transmit(s); |
1323 |
} |
1324 |
} |
1325 |
|
1326 |
static void pcnet_poll_timer(void *opaque) |
1327 |
{ |
1328 |
PCNetState *s = opaque; |
1329 |
|
1330 |
qemu_del_timer(s->poll_timer); |
1331 |
|
1332 |
if (CSR_TDMD(s)) {
|
1333 |
pcnet_transmit(s); |
1334 |
} |
1335 |
|
1336 |
pcnet_update_irq(s); |
1337 |
|
1338 |
if (!CSR_STOP(s) && !CSR_SPND(s) && !CSR_DPOLL(s)) {
|
1339 |
uint64_t now = qemu_get_clock_ns(vm_clock) * 33;
|
1340 |
if (!s->timer || !now)
|
1341 |
s->timer = now; |
1342 |
else {
|
1343 |
uint64_t t = now - s->timer + CSR_POLL(s); |
1344 |
if (t > 0xffffLL) { |
1345 |
pcnet_poll(s); |
1346 |
CSR_POLL(s) = CSR_PINT(s); |
1347 |
} else
|
1348 |
CSR_POLL(s) = t; |
1349 |
} |
1350 |
qemu_mod_timer(s->poll_timer, |
1351 |
pcnet_get_next_poll_time(s,qemu_get_clock_ns(vm_clock))); |
1352 |
} |
1353 |
} |
1354 |
|
1355 |
|
1356 |
static void pcnet_csr_writew(PCNetState *s, uint32_t rap, uint32_t new_value) |
1357 |
{ |
1358 |
uint16_t val = new_value; |
1359 |
#ifdef PCNET_DEBUG_CSR
|
1360 |
printf("pcnet_csr_writew rap=%d val=0x%04x\n", rap, val);
|
1361 |
#endif
|
1362 |
switch (rap) {
|
1363 |
case 0: |
1364 |
s->csr[0] &= ~(val & 0x7f00); /* Clear any interrupt flags */ |
1365 |
|
1366 |
s->csr[0] = (s->csr[0] & ~0x0040) | (val & 0x0048); |
1367 |
|
1368 |
val = (val & 0x007f) | (s->csr[0] & 0x7f00); |
1369 |
|
1370 |
/* IFF STOP, STRT and INIT are set, clear STRT and INIT */
|
1371 |
if ((val&7) == 7) |
1372 |
val &= ~3;
|
1373 |
|
1374 |
if (!CSR_STOP(s) && (val & 4)) |
1375 |
pcnet_stop(s); |
1376 |
|
1377 |
if (!CSR_INIT(s) && (val & 1)) |
1378 |
pcnet_init(s); |
1379 |
|
1380 |
if (!CSR_STRT(s) && (val & 2)) |
1381 |
pcnet_start(s); |
1382 |
|
1383 |
if (CSR_TDMD(s))
|
1384 |
pcnet_transmit(s); |
1385 |
|
1386 |
return;
|
1387 |
case 1: |
1388 |
case 2: |
1389 |
case 8: |
1390 |
case 9: |
1391 |
case 10: |
1392 |
case 11: |
1393 |
case 12: |
1394 |
case 13: |
1395 |
case 14: |
1396 |
case 15: |
1397 |
case 18: /* CRBAL */ |
1398 |
case 19: /* CRBAU */ |
1399 |
case 20: /* CXBAL */ |
1400 |
case 21: /* CXBAU */ |
1401 |
case 22: /* NRBAU */ |
1402 |
case 23: /* NRBAU */ |
1403 |
case 24: |
1404 |
case 25: |
1405 |
case 26: |
1406 |
case 27: |
1407 |
case 28: |
1408 |
case 29: |
1409 |
case 30: |
1410 |
case 31: |
1411 |
case 32: |
1412 |
case 33: |
1413 |
case 34: |
1414 |
case 35: |
1415 |
case 36: |
1416 |
case 37: |
1417 |
case 38: |
1418 |
case 39: |
1419 |
case 40: /* CRBC */ |
1420 |
case 41: |
1421 |
case 42: /* CXBC */ |
1422 |
case 43: |
1423 |
case 44: |
1424 |
case 45: |
1425 |
case 46: /* POLL */ |
1426 |
case 47: /* POLLINT */ |
1427 |
case 72: |
1428 |
case 74: |
1429 |
case 76: /* RCVRL */ |
1430 |
case 78: /* XMTRL */ |
1431 |
case 112: |
1432 |
if (CSR_STOP(s) || CSR_SPND(s))
|
1433 |
break;
|
1434 |
return;
|
1435 |
case 3: |
1436 |
break;
|
1437 |
case 4: |
1438 |
s->csr[4] &= ~(val & 0x026a); |
1439 |
val &= ~0x026a; val |= s->csr[4] & 0x026a; |
1440 |
break;
|
1441 |
case 5: |
1442 |
s->csr[5] &= ~(val & 0x0a90); |
1443 |
val &= ~0x0a90; val |= s->csr[5] & 0x0a90; |
1444 |
break;
|
1445 |
case 16: |
1446 |
pcnet_csr_writew(s,1,val);
|
1447 |
return;
|
1448 |
case 17: |
1449 |
pcnet_csr_writew(s,2,val);
|
1450 |
return;
|
1451 |
case 58: |
1452 |
pcnet_bcr_writew(s,BCR_SWS,val); |
1453 |
break;
|
1454 |
default:
|
1455 |
return;
|
1456 |
} |
1457 |
s->csr[rap] = val; |
1458 |
} |
1459 |
|
1460 |
static uint32_t pcnet_csr_readw(PCNetState *s, uint32_t rap)
|
1461 |
{ |
1462 |
uint32_t val; |
1463 |
switch (rap) {
|
1464 |
case 0: |
1465 |
pcnet_update_irq(s); |
1466 |
val = s->csr[0];
|
1467 |
val |= (val & 0x7800) ? 0x8000 : 0; |
1468 |
break;
|
1469 |
case 16: |
1470 |
return pcnet_csr_readw(s,1); |
1471 |
case 17: |
1472 |
return pcnet_csr_readw(s,2); |
1473 |
case 58: |
1474 |
return pcnet_bcr_readw(s,BCR_SWS);
|
1475 |
case 88: |
1476 |
val = s->csr[89];
|
1477 |
val <<= 16;
|
1478 |
val |= s->csr[88];
|
1479 |
break;
|
1480 |
default:
|
1481 |
val = s->csr[rap]; |
1482 |
} |
1483 |
#ifdef PCNET_DEBUG_CSR
|
1484 |
printf("pcnet_csr_readw rap=%d val=0x%04x\n", rap, val);
|
1485 |
#endif
|
1486 |
return val;
|
1487 |
} |
1488 |
|
1489 |
static void pcnet_bcr_writew(PCNetState *s, uint32_t rap, uint32_t val) |
1490 |
{ |
1491 |
rap &= 127;
|
1492 |
#ifdef PCNET_DEBUG_BCR
|
1493 |
printf("pcnet_bcr_writew rap=%d val=0x%04x\n", rap, val);
|
1494 |
#endif
|
1495 |
switch (rap) {
|
1496 |
case BCR_SWS:
|
1497 |
if (!(CSR_STOP(s) || CSR_SPND(s)))
|
1498 |
return;
|
1499 |
val &= ~0x0300;
|
1500 |
switch (val & 0x00ff) { |
1501 |
case 0: |
1502 |
val |= 0x0200;
|
1503 |
break;
|
1504 |
case 1: |
1505 |
val |= 0x0100;
|
1506 |
break;
|
1507 |
case 2: |
1508 |
case 3: |
1509 |
val |= 0x0300;
|
1510 |
break;
|
1511 |
default:
|
1512 |
printf("Bad SWSTYLE=0x%02x\n", val & 0xff); |
1513 |
val = 0x0200;
|
1514 |
break;
|
1515 |
} |
1516 |
#ifdef PCNET_DEBUG
|
1517 |
printf("BCR_SWS=0x%04x\n", val);
|
1518 |
#endif
|
1519 |
/* fall through */
|
1520 |
case BCR_LNKST:
|
1521 |
case BCR_LED1:
|
1522 |
case BCR_LED2:
|
1523 |
case BCR_LED3:
|
1524 |
case BCR_MC:
|
1525 |
case BCR_FDC:
|
1526 |
case BCR_BSBC:
|
1527 |
case BCR_EECAS:
|
1528 |
case BCR_PLAT:
|
1529 |
s->bcr[rap] = val; |
1530 |
break;
|
1531 |
default:
|
1532 |
break;
|
1533 |
} |
1534 |
} |
1535 |
|
1536 |
uint32_t pcnet_bcr_readw(PCNetState *s, uint32_t rap) |
1537 |
{ |
1538 |
uint32_t val; |
1539 |
rap &= 127;
|
1540 |
switch (rap) {
|
1541 |
case BCR_LNKST:
|
1542 |
case BCR_LED1:
|
1543 |
case BCR_LED2:
|
1544 |
case BCR_LED3:
|
1545 |
val = s->bcr[rap] & ~0x8000;
|
1546 |
val |= (val & 0x017f & s->lnkst) ? 0x8000 : 0; |
1547 |
break;
|
1548 |
default:
|
1549 |
val = rap < 32 ? s->bcr[rap] : 0; |
1550 |
break;
|
1551 |
} |
1552 |
#ifdef PCNET_DEBUG_BCR
|
1553 |
printf("pcnet_bcr_readw rap=%d val=0x%04x\n", rap, val);
|
1554 |
#endif
|
1555 |
return val;
|
1556 |
} |
1557 |
|
1558 |
void pcnet_h_reset(void *opaque) |
1559 |
{ |
1560 |
PCNetState *s = opaque; |
1561 |
|
1562 |
s->bcr[BCR_MSRDA] = 0x0005;
|
1563 |
s->bcr[BCR_MSWRA] = 0x0005;
|
1564 |
s->bcr[BCR_MC ] = 0x0002;
|
1565 |
s->bcr[BCR_LNKST] = 0x00c0;
|
1566 |
s->bcr[BCR_LED1 ] = 0x0084;
|
1567 |
s->bcr[BCR_LED2 ] = 0x0088;
|
1568 |
s->bcr[BCR_LED3 ] = 0x0090;
|
1569 |
s->bcr[BCR_FDC ] = 0x0000;
|
1570 |
s->bcr[BCR_BSBC ] = 0x9001;
|
1571 |
s->bcr[BCR_EECAS] = 0x0002;
|
1572 |
s->bcr[BCR_SWS ] = 0x0200;
|
1573 |
s->bcr[BCR_PLAT ] = 0xff06;
|
1574 |
|
1575 |
pcnet_s_reset(s); |
1576 |
pcnet_update_irq(s); |
1577 |
pcnet_poll_timer(s); |
1578 |
} |
1579 |
|
1580 |
void pcnet_ioport_writew(void *opaque, uint32_t addr, uint32_t val) |
1581 |
{ |
1582 |
PCNetState *s = opaque; |
1583 |
pcnet_poll_timer(s); |
1584 |
#ifdef PCNET_DEBUG_IO
|
1585 |
printf("pcnet_ioport_writew addr=0x%08x val=0x%04x\n", addr, val);
|
1586 |
#endif
|
1587 |
if (!BCR_DWIO(s)) {
|
1588 |
switch (addr & 0x0f) { |
1589 |
case 0x00: /* RDP */ |
1590 |
pcnet_csr_writew(s, s->rap, val); |
1591 |
break;
|
1592 |
case 0x02: |
1593 |
s->rap = val & 0x7f;
|
1594 |
break;
|
1595 |
case 0x06: |
1596 |
pcnet_bcr_writew(s, s->rap, val); |
1597 |
break;
|
1598 |
} |
1599 |
} |
1600 |
pcnet_update_irq(s); |
1601 |
} |
1602 |
|
1603 |
uint32_t pcnet_ioport_readw(void *opaque, uint32_t addr)
|
1604 |
{ |
1605 |
PCNetState *s = opaque; |
1606 |
uint32_t val = -1;
|
1607 |
pcnet_poll_timer(s); |
1608 |
if (!BCR_DWIO(s)) {
|
1609 |
switch (addr & 0x0f) { |
1610 |
case 0x00: /* RDP */ |
1611 |
val = pcnet_csr_readw(s, s->rap); |
1612 |
break;
|
1613 |
case 0x02: |
1614 |
val = s->rap; |
1615 |
break;
|
1616 |
case 0x04: |
1617 |
pcnet_s_reset(s); |
1618 |
val = 0;
|
1619 |
break;
|
1620 |
case 0x06: |
1621 |
val = pcnet_bcr_readw(s, s->rap); |
1622 |
break;
|
1623 |
} |
1624 |
} |
1625 |
pcnet_update_irq(s); |
1626 |
#ifdef PCNET_DEBUG_IO
|
1627 |
printf("pcnet_ioport_readw addr=0x%08x val=0x%04x\n", addr, val & 0xffff); |
1628 |
#endif
|
1629 |
return val;
|
1630 |
} |
1631 |
|
1632 |
void pcnet_ioport_writel(void *opaque, uint32_t addr, uint32_t val) |
1633 |
{ |
1634 |
PCNetState *s = opaque; |
1635 |
pcnet_poll_timer(s); |
1636 |
#ifdef PCNET_DEBUG_IO
|
1637 |
printf("pcnet_ioport_writel addr=0x%08x val=0x%08x\n", addr, val);
|
1638 |
#endif
|
1639 |
if (BCR_DWIO(s)) {
|
1640 |
switch (addr & 0x0f) { |
1641 |
case 0x00: /* RDP */ |
1642 |
pcnet_csr_writew(s, s->rap, val & 0xffff);
|
1643 |
break;
|
1644 |
case 0x04: |
1645 |
s->rap = val & 0x7f;
|
1646 |
break;
|
1647 |
case 0x0c: |
1648 |
pcnet_bcr_writew(s, s->rap, val & 0xffff);
|
1649 |
break;
|
1650 |
} |
1651 |
} else
|
1652 |
if ((addr & 0x0f) == 0) { |
1653 |
/* switch device to dword i/o mode */
|
1654 |
pcnet_bcr_writew(s, BCR_BSBC, pcnet_bcr_readw(s, BCR_BSBC) | 0x0080);
|
1655 |
#ifdef PCNET_DEBUG_IO
|
1656 |
printf("device switched into dword i/o mode\n");
|
1657 |
#endif
|
1658 |
} |
1659 |
pcnet_update_irq(s); |
1660 |
} |
1661 |
|
1662 |
uint32_t pcnet_ioport_readl(void *opaque, uint32_t addr)
|
1663 |
{ |
1664 |
PCNetState *s = opaque; |
1665 |
uint32_t val = -1;
|
1666 |
pcnet_poll_timer(s); |
1667 |
if (BCR_DWIO(s)) {
|
1668 |
switch (addr & 0x0f) { |
1669 |
case 0x00: /* RDP */ |
1670 |
val = pcnet_csr_readw(s, s->rap); |
1671 |
break;
|
1672 |
case 0x04: |
1673 |
val = s->rap; |
1674 |
break;
|
1675 |
case 0x08: |
1676 |
pcnet_s_reset(s); |
1677 |
val = 0;
|
1678 |
break;
|
1679 |
case 0x0c: |
1680 |
val = pcnet_bcr_readw(s, s->rap); |
1681 |
break;
|
1682 |
} |
1683 |
} |
1684 |
pcnet_update_irq(s); |
1685 |
#ifdef PCNET_DEBUG_IO
|
1686 |
printf("pcnet_ioport_readl addr=0x%08x val=0x%08x\n", addr, val);
|
1687 |
#endif
|
1688 |
return val;
|
1689 |
} |
1690 |
|
1691 |
static bool is_version_2(void *opaque, int version_id) |
1692 |
{ |
1693 |
return version_id == 2; |
1694 |
} |
1695 |
|
1696 |
const VMStateDescription vmstate_pcnet = {
|
1697 |
.name = "pcnet",
|
1698 |
.version_id = 3,
|
1699 |
.minimum_version_id = 2,
|
1700 |
.minimum_version_id_old = 2,
|
1701 |
.fields = (VMStateField []) { |
1702 |
VMSTATE_INT32(rap, PCNetState), |
1703 |
VMSTATE_INT32(isr, PCNetState), |
1704 |
VMSTATE_INT32(lnkst, PCNetState), |
1705 |
VMSTATE_UINT32(rdra, PCNetState), |
1706 |
VMSTATE_UINT32(tdra, PCNetState), |
1707 |
VMSTATE_BUFFER(prom, PCNetState), |
1708 |
VMSTATE_UINT16_ARRAY(csr, PCNetState, 128),
|
1709 |
VMSTATE_UINT16_ARRAY(bcr, PCNetState, 32),
|
1710 |
VMSTATE_UINT64(timer, PCNetState), |
1711 |
VMSTATE_INT32(xmit_pos, PCNetState), |
1712 |
VMSTATE_BUFFER(buffer, PCNetState), |
1713 |
VMSTATE_UNUSED_TEST(is_version_2, 4),
|
1714 |
VMSTATE_INT32(tx_busy, PCNetState), |
1715 |
VMSTATE_TIMER(poll_timer, PCNetState), |
1716 |
VMSTATE_END_OF_LIST() |
1717 |
} |
1718 |
}; |
1719 |
|
1720 |
void pcnet_common_cleanup(PCNetState *d)
|
1721 |
{ |
1722 |
d->nic = NULL;
|
1723 |
} |
1724 |
|
1725 |
int pcnet_common_init(DeviceState *dev, PCNetState *s, NetClientInfo *info)
|
1726 |
{ |
1727 |
int i;
|
1728 |
uint16_t checksum; |
1729 |
|
1730 |
s->poll_timer = qemu_new_timer_ns(vm_clock, pcnet_poll_timer, s); |
1731 |
|
1732 |
qemu_macaddr_default_if_unset(&s->conf.macaddr); |
1733 |
s->nic = qemu_new_nic(info, &s->conf, object_get_typename(OBJECT(dev)), dev->id, s); |
1734 |
qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a); |
1735 |
|
1736 |
add_boot_device_path(s->conf.bootindex, dev, "/ethernet-phy@0");
|
1737 |
|
1738 |
/* Initialize the PROM */
|
1739 |
|
1740 |
/*
|
1741 |
Datasheet: http://pdfdata.datasheetsite.com/web/24528/AM79C970A.pdf
|
1742 |
page 95
|
1743 |
*/
|
1744 |
memcpy(s->prom, s->conf.macaddr.a, 6);
|
1745 |
/* Reserved Location: must be 00h */
|
1746 |
s->prom[6] = s->prom[7] = 0x00; |
1747 |
/* Reserved Location: must be 00h */
|
1748 |
s->prom[8] = 0x00; |
1749 |
/* Hardware ID: must be 11h if compatibility to AMD drivers is desired */
|
1750 |
s->prom[9] = 0x11; |
1751 |
/* User programmable space, init with 0 */
|
1752 |
s->prom[10] = s->prom[11] = 0x00; |
1753 |
/* LSByte of two-byte checksum, which is the sum of bytes 00h-0Bh
|
1754 |
and bytes 0Eh and 0Fh, must therefore be initialized with 0! */
|
1755 |
s->prom[12] = s->prom[13] = 0x00; |
1756 |
/* Must be ASCII W (57h) if compatibility to AMD
|
1757 |
driver software is desired */
|
1758 |
s->prom[14] = s->prom[15] = 0x57; |
1759 |
|
1760 |
for (i = 0, checksum = 0; i < 16; i++) { |
1761 |
checksum += s->prom[i]; |
1762 |
} |
1763 |
*(uint16_t *)&s->prom[12] = cpu_to_le16(checksum);
|
1764 |
|
1765 |
s->lnkst = 0x40; /* initial link state: up */ |
1766 |
|
1767 |
return 0; |
1768 |
} |