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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 "qdev.h" |
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#include "net.h" |
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#include "qemu-timer.h" |
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#include "qemu_socket.h" |
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#include "sysemu.h" |
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#include "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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|
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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_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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|
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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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|
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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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target_phys_addr_t addr) |
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{
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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; |
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s->phys_mem_read(s->dma_opaque, addr, (void *)&xda, sizeof(xda), 0); |
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tmd->tbadr = le32_to_cpu(xda.tbadr) & 0xffffff;
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tmd->length = le16_to_cpu(xda.length); |
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tmd->status = (le32_to_cpu(xda.tbadr) >> 16) & 0xff00; |
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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); |
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le32_to_cpus(&tmd->tbadr); |
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le16_to_cpus((uint16_t *)&tmd->length); |
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le16_to_cpus((uint16_t *)&tmd->status); |
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le32_to_cpus(&tmd->misc); |
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le32_to_cpus(&tmd->res); |
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if (BCR_SWSTYLE(s) == 3) { |
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uint32_t tmp = tmd->tbadr; |
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tmd->tbadr = tmd->misc; |
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tmd->misc = tmp; |
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} |
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} |
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} |
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|
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static inline void pcnet_tmd_store(PCNetState *s, const struct pcnet_TMD *tmd, |
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target_phys_addr_t addr) |
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{
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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; |
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xda.tbadr = cpu_to_le32((tmd->tbadr & 0xffffff) |
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((tmd->status & 0xff00) << 16)); |
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xda.length = cpu_to_le16(tmd->length); |
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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); |
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} else {
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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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uint32_t misc; |
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uint32_t res; |
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} xda; |
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xda.tbadr = cpu_to_le32(tmd->tbadr); |
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xda.length = cpu_to_le16(tmd->length); |
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xda.status = cpu_to_le16(tmd->status); |
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xda.misc = cpu_to_le32(tmd->misc); |
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xda.res = cpu_to_le32(tmd->res); |
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if (BCR_SWSTYLE(s) == 3) { |
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uint32_t tmp = xda.tbadr; |
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xda.tbadr = xda.misc; |
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xda.misc = tmp; |
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} |
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s->phys_mem_write(s->dma_opaque, addr, (void *)&xda, sizeof(xda), 0); |
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} |
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} |
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|
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static inline void pcnet_rmd_load(PCNetState *s, struct pcnet_RMD *rmd, |
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target_phys_addr_t addr) |
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{
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if (!BCR_SSIZE32(s)) {
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struct {
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uint32_t rbadr; |
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int16_t buf_length; |
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int16_t msg_length; |
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} rda; |
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s->phys_mem_read(s->dma_opaque, addr, (void *)&rda, sizeof(rda), 0); |
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rmd->rbadr = le32_to_cpu(rda.rbadr) & 0xffffff;
|
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rmd->buf_length = le16_to_cpu(rda.buf_length); |
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rmd->status = (le32_to_cpu(rda.rbadr) >> 16) & 0xff00; |
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rmd->msg_length = le16_to_cpu(rda.msg_length); |
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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); |
| 377 |
le32_to_cpus(&rmd->rbadr); |
| 378 |
le16_to_cpus((uint16_t *)&rmd->buf_length); |
| 379 |
le16_to_cpus((uint16_t *)&rmd->status); |
| 380 |
le32_to_cpus(&rmd->msg_length); |
| 381 |
le32_to_cpus(&rmd->res); |
| 382 |
if (BCR_SWSTYLE(s) == 3) { |
| 383 |
uint32_t tmp = rmd->rbadr; |
| 384 |
rmd->rbadr = rmd->msg_length; |
| 385 |
rmd->msg_length = tmp; |
| 386 |
} |
| 387 |
} |
| 388 |
} |
| 389 |
|
| 390 |
static inline void pcnet_rmd_store(PCNetState *s, struct pcnet_RMD *rmd, |
| 391 |
target_phys_addr_t addr) |
| 392 |
{
|
| 393 |
if (!BCR_SSIZE32(s)) {
|
| 394 |
struct {
|
| 395 |
uint32_t rbadr; |
| 396 |
int16_t buf_length; |
| 397 |
int16_t msg_length; |
| 398 |
} rda; |
| 399 |
rda.rbadr = cpu_to_le32((rmd->rbadr & 0xffffff) |
|
| 400 |
((rmd->status & 0xff00) << 16)); |
| 401 |
rda.buf_length = cpu_to_le16(rmd->buf_length); |
| 402 |
rda.msg_length = cpu_to_le16(rmd->msg_length); |
| 403 |
s->phys_mem_write(s->dma_opaque, addr, (void *)&rda, sizeof(rda), 0); |
| 404 |
} else {
|
| 405 |
struct {
|
| 406 |
uint32_t rbadr; |
| 407 |
int16_t buf_length; |
| 408 |
int16_t status; |
| 409 |
uint32_t msg_length; |
| 410 |
uint32_t res; |
| 411 |
} rda; |
| 412 |
rda.rbadr = cpu_to_le32(rmd->rbadr); |
| 413 |
rda.buf_length = cpu_to_le16(rmd->buf_length); |
| 414 |
rda.status = cpu_to_le16(rmd->status); |
| 415 |
rda.msg_length = cpu_to_le32(rmd->msg_length); |
| 416 |
rda.res = cpu_to_le32(rmd->res); |
| 417 |
if (BCR_SWSTYLE(s) == 3) { |
| 418 |
uint32_t tmp = rda.rbadr; |
| 419 |
rda.rbadr = rda.msg_length; |
| 420 |
rda.msg_length = tmp; |
| 421 |
} |
| 422 |
s->phys_mem_write(s->dma_opaque, addr, (void *)&rda, sizeof(rda), 0); |
| 423 |
} |
| 424 |
} |
| 425 |
|
| 426 |
|
| 427 |
#define TMDLOAD(TMD,ADDR) pcnet_tmd_load(s,TMD,ADDR)
|
| 428 |
|
| 429 |
#define TMDSTORE(TMD,ADDR) pcnet_tmd_store(s,TMD,ADDR)
|
| 430 |
|
| 431 |
#define RMDLOAD(RMD,ADDR) pcnet_rmd_load(s,RMD,ADDR)
|
| 432 |
|
| 433 |
#define RMDSTORE(RMD,ADDR) pcnet_rmd_store(s,RMD,ADDR)
|
| 434 |
|
| 435 |
#if 1 |
| 436 |
|
| 437 |
#define CHECK_RMD(ADDR,RES) do { \ |
| 438 |
struct pcnet_RMD rmd; \
|
| 439 |
RMDLOAD(&rmd,(ADDR)); \ |
| 440 |
(RES) |= (GET_FIELD(rmd.buf_length, RMDL, ONES) != 15) \
|
| 441 |
|| (GET_FIELD(rmd.msg_length, RMDM, ZEROS) != 0); \
|
| 442 |
} while (0) |
| 443 |
|
| 444 |
#define CHECK_TMD(ADDR,RES) do { \ |
| 445 |
struct pcnet_TMD tmd; \
|
| 446 |
TMDLOAD(&tmd,(ADDR)); \ |
| 447 |
(RES) |= (GET_FIELD(tmd.length, TMDL, ONES) != 15); \
|
| 448 |
} while (0) |
| 449 |
|
| 450 |
#else
|
| 451 |
|
| 452 |
#define CHECK_RMD(ADDR,RES) do { \ |
| 453 |
switch (BCR_SWSTYLE(s)) { \
|
| 454 |
case 0x00: \ |
| 455 |
do { \
|
| 456 |
uint16_t rda[4]; \
|
| 457 |
s->phys_mem_read(s->dma_opaque, (ADDR), \ |
| 458 |
(void *)&rda[0], sizeof(rda), 0); \ |
| 459 |
(RES) |= (rda[2] & 0xf000)!=0xf000; \ |
| 460 |
(RES) |= (rda[3] & 0xf000)!=0x0000; \ |
| 461 |
} while (0); \ |
| 462 |
break; \
|
| 463 |
case 0x01: \ |
| 464 |
case 0x02: \ |
| 465 |
do { \
|
| 466 |
uint32_t rda[4]; \
|
| 467 |
s->phys_mem_read(s->dma_opaque, (ADDR), \ |
| 468 |
(void *)&rda[0], sizeof(rda), 0); \ |
| 469 |
(RES) |= (rda[1] & 0x0000f000L)!=0x0000f000L; \ |
| 470 |
(RES) |= (rda[2] & 0x0000f000L)!=0x00000000L; \ |
| 471 |
} while (0); \ |
| 472 |
break; \
|
| 473 |
case 0x03: \ |
| 474 |
do { \
|
| 475 |
uint32_t rda[4]; \
|
| 476 |
s->phys_mem_read(s->dma_opaque, (ADDR), \ |
| 477 |
(void *)&rda[0], sizeof(rda), 0); \ |
| 478 |
(RES) |= (rda[0] & 0x0000f000L)!=0x00000000L; \ |
| 479 |
(RES) |= (rda[1] & 0x0000f000L)!=0x0000f000L; \ |
| 480 |
} while (0); \ |
| 481 |
break; \
|
| 482 |
} \ |
| 483 |
} while (0) |
| 484 |
|
| 485 |
#define CHECK_TMD(ADDR,RES) do { \ |
| 486 |
switch (BCR_SWSTYLE(s)) { \
|
| 487 |
case 0x00: \ |
| 488 |
do { \
|
| 489 |
uint16_t xda[4]; \
|
| 490 |
s->phys_mem_read(s->dma_opaque, (ADDR), \ |
| 491 |
(void *)&xda[0], sizeof(xda), 0); \ |
| 492 |
(RES) |= (xda[2] & 0xf000)!=0xf000; \ |
| 493 |
} while (0); \ |
| 494 |
break; \
|
| 495 |
case 0x01: \ |
| 496 |
case 0x02: \ |
| 497 |
case 0x03: \ |
| 498 |
do { \
|
| 499 |
uint32_t xda[4]; \
|
| 500 |
s->phys_mem_read(s->dma_opaque, (ADDR), \ |
| 501 |
(void *)&xda[0], sizeof(xda), 0); \ |
| 502 |
(RES) |= (xda[1] & 0x0000f000L)!=0x0000f000L; \ |
| 503 |
} while (0); \ |
| 504 |
break; \
|
| 505 |
} \ |
| 506 |
} while (0) |
| 507 |
|
| 508 |
#endif
|
| 509 |
|
| 510 |
#define PRINT_PKTHDR(BUF) do { \ |
| 511 |
struct qemu_ether_header *hdr = (void *)(BUF); \ |
| 512 |
printf("packet dhost=%02x:%02x:%02x:%02x:%02x:%02x, " \
|
| 513 |
"shost=%02x:%02x:%02x:%02x:%02x:%02x, " \
|
| 514 |
"type=0x%04x\n", \
|
| 515 |
hdr->ether_dhost[0],hdr->ether_dhost[1],hdr->ether_dhost[2], \ |
| 516 |
hdr->ether_dhost[3],hdr->ether_dhost[4],hdr->ether_dhost[5], \ |
| 517 |
hdr->ether_shost[0],hdr->ether_shost[1],hdr->ether_shost[2], \ |
| 518 |
hdr->ether_shost[3],hdr->ether_shost[4],hdr->ether_shost[5], \ |
| 519 |
be16_to_cpu(hdr->ether_type)); \ |
| 520 |
} while (0) |
| 521 |
|
| 522 |
#define MULTICAST_FILTER_LEN 8 |
| 523 |
|
| 524 |
static inline uint32_t lnc_mchash(const uint8_t *ether_addr) |
| 525 |
{
|
| 526 |
#define LNC_POLYNOMIAL 0xEDB88320UL |
| 527 |
uint32_t crc = 0xFFFFFFFF;
|
| 528 |
int idx, bit;
|
| 529 |
uint8_t data; |
| 530 |
|
| 531 |
for (idx = 0; idx < 6; idx++) { |
| 532 |
for (data = *ether_addr++, bit = 0; bit < MULTICAST_FILTER_LEN; bit++) { |
| 533 |
crc = (crc >> 1) ^ (((crc ^ data) & 1) ? LNC_POLYNOMIAL : 0); |
| 534 |
data >>= 1;
|
| 535 |
} |
| 536 |
} |
| 537 |
return crc;
|
| 538 |
#undef LNC_POLYNOMIAL
|
| 539 |
} |
| 540 |
|
| 541 |
#define CRC(crc, ch) (crc = (crc >> 8) ^ crctab[(crc ^ (ch)) & 0xff]) |
| 542 |
|
| 543 |
/* generated using the AUTODIN II polynomial
|
| 544 |
* x^32 + x^26 + x^23 + x^22 + x^16 +
|
| 545 |
* x^12 + x^11 + x^10 + x^8 + x^7 + x^5 + x^4 + x^2 + x^1 + 1
|
| 546 |
*/
|
| 547 |
static const uint32_t crctab[256] = { |
| 548 |
0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, |
| 549 |
0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3, |
| 550 |
0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988, |
| 551 |
0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, |
| 552 |
0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de, |
| 553 |
0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, |
| 554 |
0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, |
| 555 |
0x14015c4f, 0x63066cd9, 0xfa0f3d63, 0x8d080df5, |
| 556 |
0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172, |
| 557 |
0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, |
| 558 |
0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, |
| 559 |
0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59, |
| 560 |
0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, |
| 561 |
0x21b4f4b5, 0x56b3c423, 0xcfba9599, 0xb8bda50f, |
| 562 |
0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, |
| 563 |
0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, |
| 564 |
0x76dc4190, 0x01db7106, 0x98d220bc, 0xefd5102a, |
| 565 |
0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433, |
| 566 |
0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, |
| 567 |
0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01, |
| 568 |
0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, |
| 569 |
0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, |
| 570 |
0x65b0d9c6, 0x12b7e950, 0x8bbeb8ea, 0xfcb9887c, |
| 571 |
0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65, |
| 572 |
0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, |
| 573 |
0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, |
| 574 |
0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0, |
| 575 |
0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, |
| 576 |
0x5005713c, 0x270241aa, 0xbe0b1010, 0xc90c2086, |
| 577 |
0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f, |
| 578 |
0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, |
| 579 |
0x59b33d17, 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, |
| 580 |
0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a, |
| 581 |
0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, |
| 582 |
0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8, |
| 583 |
0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, |
| 584 |
0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, |
| 585 |
0xf762575d, 0x806567cb, 0x196c3671, 0x6e6b06e7, |
| 586 |
0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc, |
| 587 |
0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, |
| 588 |
0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, |
| 589 |
0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b, |
| 590 |
0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, |
| 591 |
0xdf60efc3, 0xa867df55, 0x316e8eef, 0x4669be79, |
| 592 |
0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, |
| 593 |
0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, |
| 594 |
0xc5ba3bbe, 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, |
| 595 |
0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d, |
| 596 |
0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, |
| 597 |
0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713, |
| 598 |
0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, |
| 599 |
0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, |
| 600 |
0x86d3d2d4, 0xf1d4e242, 0x68ddb3f8, 0x1fda836e, |
| 601 |
0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777, |
| 602 |
0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, |
| 603 |
0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, |
| 604 |
0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2, |
| 605 |
0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, |
| 606 |
0xaed16a4a, 0xd9d65adc, 0x40df0b66, 0x37d83bf0, |
| 607 |
0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9, |
| 608 |
0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, |
| 609 |
0xbad03605, 0xcdd70693, 0x54de5729, 0x23d967bf, |
| 610 |
0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94, |
| 611 |
0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d, |
| 612 |
}; |
| 613 |
|
| 614 |
static inline int padr_match(PCNetState *s, const uint8_t *buf, int size) |
| 615 |
{
|
| 616 |
struct qemu_ether_header *hdr = (void *)buf; |
| 617 |
uint8_t padr[6] = {
|
| 618 |
s->csr[12] & 0xff, s->csr[12] >> 8, |
| 619 |
s->csr[13] & 0xff, s->csr[13] >> 8, |
| 620 |
s->csr[14] & 0xff, s->csr[14] >> 8 |
| 621 |
}; |
| 622 |
int result = (!CSR_DRCVPA(s)) && !memcmp(hdr->ether_dhost, padr, 6); |
| 623 |
#ifdef PCNET_DEBUG_MATCH
|
| 624 |
printf("packet dhost=%02x:%02x:%02x:%02x:%02x:%02x, "
|
| 625 |
"padr=%02x:%02x:%02x:%02x:%02x:%02x\n",
|
| 626 |
hdr->ether_dhost[0],hdr->ether_dhost[1],hdr->ether_dhost[2], |
| 627 |
hdr->ether_dhost[3],hdr->ether_dhost[4],hdr->ether_dhost[5], |
| 628 |
padr[0],padr[1],padr[2],padr[3],padr[4],padr[5]); |
| 629 |
printf("padr_match result=%d\n", result);
|
| 630 |
#endif
|
| 631 |
return result;
|
| 632 |
} |
| 633 |
|
| 634 |
static inline int padr_bcast(PCNetState *s, const uint8_t *buf, int size) |
| 635 |
{
|
| 636 |
static const uint8_t BCAST[6] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; |
| 637 |
struct qemu_ether_header *hdr = (void *)buf; |
| 638 |
int result = !CSR_DRCVBC(s) && !memcmp(hdr->ether_dhost, BCAST, 6); |
| 639 |
#ifdef PCNET_DEBUG_MATCH
|
| 640 |
printf("padr_bcast result=%d\n", result);
|
| 641 |
#endif
|
| 642 |
return result;
|
| 643 |
} |
| 644 |
|
| 645 |
static inline int ladr_match(PCNetState *s, const uint8_t *buf, int size) |
| 646 |
{
|
| 647 |
struct qemu_ether_header *hdr = (void *)buf; |
| 648 |
if ((*(hdr->ether_dhost)&0x01) && |
| 649 |
((uint64_t *)&s->csr[8])[0] != 0LL) { |
| 650 |
uint8_t ladr[8] = {
|
| 651 |
s->csr[8] & 0xff, s->csr[8] >> 8, |
| 652 |
s->csr[9] & 0xff, s->csr[9] >> 8, |
| 653 |
s->csr[10] & 0xff, s->csr[10] >> 8, |
| 654 |
s->csr[11] & 0xff, s->csr[11] >> 8 |
| 655 |
}; |
| 656 |
int index = lnc_mchash(hdr->ether_dhost) >> 26; |
| 657 |
return !!(ladr[index >> 3] & (1 << (index & 7))); |
| 658 |
} |
| 659 |
return 0; |
| 660 |
} |
| 661 |
|
| 662 |
static inline target_phys_addr_t pcnet_rdra_addr(PCNetState *s, int idx) |
| 663 |
{
|
| 664 |
while (idx < 1) idx += CSR_RCVRL(s); |
| 665 |
return s->rdra + ((CSR_RCVRL(s) - idx) * (BCR_SWSTYLE(s) ? 16 : 8)); |
| 666 |
} |
| 667 |
|
| 668 |
static inline int64_t pcnet_get_next_poll_time(PCNetState *s, int64_t current_time) |
| 669 |
{
|
| 670 |
int64_t next_time = current_time + |
| 671 |
muldiv64(65536 - (CSR_SPND(s) ? 0 : CSR_POLL(s)), |
| 672 |
get_ticks_per_sec(), 33000000L);
|
| 673 |
if (next_time <= current_time)
|
| 674 |
next_time = current_time + 1;
|
| 675 |
return next_time;
|
| 676 |
} |
| 677 |
|
| 678 |
static void pcnet_poll(PCNetState *s); |
| 679 |
static void pcnet_poll_timer(void *opaque); |
| 680 |
|
| 681 |
static uint32_t pcnet_csr_readw(PCNetState *s, uint32_t rap);
|
| 682 |
static void pcnet_csr_writew(PCNetState *s, uint32_t rap, uint32_t new_value); |
| 683 |
static void pcnet_bcr_writew(PCNetState *s, uint32_t rap, uint32_t val); |
| 684 |
|
| 685 |
static void pcnet_s_reset(PCNetState *s) |
| 686 |
{
|
| 687 |
#ifdef PCNET_DEBUG
|
| 688 |
printf("pcnet_s_reset\n");
|
| 689 |
#endif
|
| 690 |
|
| 691 |
s->rdra = 0;
|
| 692 |
s->tdra = 0;
|
| 693 |
s->rap = 0;
|
| 694 |
|
| 695 |
s->bcr[BCR_BSBC] &= ~0x0080;
|
| 696 |
|
| 697 |
s->csr[0] = 0x0004; |
| 698 |
s->csr[3] = 0x0000; |
| 699 |
s->csr[4] = 0x0115; |
| 700 |
s->csr[5] = 0x0000; |
| 701 |
s->csr[6] = 0x0000; |
| 702 |
s->csr[8] = 0; |
| 703 |
s->csr[9] = 0; |
| 704 |
s->csr[10] = 0; |
| 705 |
s->csr[11] = 0; |
| 706 |
s->csr[12] = le16_to_cpu(((uint16_t *)&s->prom[0])[0]); |
| 707 |
s->csr[13] = le16_to_cpu(((uint16_t *)&s->prom[0])[1]); |
| 708 |
s->csr[14] = le16_to_cpu(((uint16_t *)&s->prom[0])[2]); |
| 709 |
s->csr[15] &= 0x21c4; |
| 710 |
s->csr[72] = 1; |
| 711 |
s->csr[74] = 1; |
| 712 |
s->csr[76] = 1; |
| 713 |
s->csr[78] = 1; |
| 714 |
s->csr[80] = 0x1410; |
| 715 |
s->csr[88] = 0x1003; |
| 716 |
s->csr[89] = 0x0262; |
| 717 |
s->csr[94] = 0x0000; |
| 718 |
s->csr[100] = 0x0200; |
| 719 |
s->csr[103] = 0x0105; |
| 720 |
s->csr[103] = 0x0105; |
| 721 |
s->csr[112] = 0x0000; |
| 722 |
s->csr[114] = 0x0000; |
| 723 |
s->csr[122] = 0x0000; |
| 724 |
s->csr[124] = 0x0000; |
| 725 |
|
| 726 |
s->tx_busy = 0;
|
| 727 |
} |
| 728 |
|
| 729 |
static void pcnet_update_irq(PCNetState *s) |
| 730 |
{
|
| 731 |
int isr = 0; |
| 732 |
s->csr[0] &= ~0x0080; |
| 733 |
|
| 734 |
#if 1 |
| 735 |
if (((s->csr[0] & ~s->csr[3]) & 0x5f00) || |
| 736 |
(((s->csr[4]>>1) & ~s->csr[4]) & 0x0115) || |
| 737 |
(((s->csr[5]>>1) & s->csr[5]) & 0x0048)) |
| 738 |
#else
|
| 739 |
if ((!(s->csr[3] & 0x4000) && !!(s->csr[0] & 0x4000)) /* BABL */ || |
| 740 |
(!(s->csr[3] & 0x1000) && !!(s->csr[0] & 0x1000)) /* MISS */ || |
| 741 |
(!(s->csr[3] & 0x0100) && !!(s->csr[0] & 0x0100)) /* IDON */ || |
| 742 |
(!(s->csr[3] & 0x0200) && !!(s->csr[0] & 0x0200)) /* TINT */ || |
| 743 |
(!(s->csr[3] & 0x0400) && !!(s->csr[0] & 0x0400)) /* RINT */ || |
| 744 |
(!(s->csr[3] & 0x0800) && !!(s->csr[0] & 0x0800)) /* MERR */ || |
| 745 |
(!(s->csr[4] & 0x0001) && !!(s->csr[4] & 0x0002)) /* JAB */ || |
| 746 |
(!(s->csr[4] & 0x0004) && !!(s->csr[4] & 0x0008)) /* TXSTRT */ || |
| 747 |
(!(s->csr[4] & 0x0010) && !!(s->csr[4] & 0x0020)) /* RCVO */ || |
| 748 |
(!(s->csr[4] & 0x0100) && !!(s->csr[4] & 0x0200)) /* MFCO */ || |
| 749 |
(!!(s->csr[5] & 0x0040) && !!(s->csr[5] & 0x0080)) /* EXDINT */ || |
| 750 |
(!!(s->csr[5] & 0x0008) && !!(s->csr[5] & 0x0010)) /* MPINT */) |
| 751 |
#endif
|
| 752 |
{
|
| 753 |
|
| 754 |
isr = CSR_INEA(s); |
| 755 |
s->csr[0] |= 0x0080; |
| 756 |
} |
| 757 |
|
| 758 |
if (!!(s->csr[4] & 0x0080) && CSR_INEA(s)) { /* UINT */ |
| 759 |
s->csr[4] &= ~0x0080; |
| 760 |
s->csr[4] |= 0x0040; |
| 761 |
s->csr[0] |= 0x0080; |
| 762 |
isr = 1;
|
| 763 |
#ifdef PCNET_DEBUG
|
| 764 |
printf("pcnet user int\n");
|
| 765 |
#endif
|
| 766 |
} |
| 767 |
|
| 768 |
#if 1 |
| 769 |
if (((s->csr[5]>>1) & s->csr[5]) & 0x0500) |
| 770 |
#else
|
| 771 |
if ((!!(s->csr[5] & 0x0400) && !!(s->csr[5] & 0x0800)) /* SINT */ || |
| 772 |
(!!(s->csr[5] & 0x0100) && !!(s->csr[5] & 0x0200)) /* SLPINT */ ) |
| 773 |
#endif
|
| 774 |
{
|
| 775 |
isr = 1;
|
| 776 |
s->csr[0] |= 0x0080; |
| 777 |
} |
| 778 |
|
| 779 |
if (isr != s->isr) {
|
| 780 |
#ifdef PCNET_DEBUG
|
| 781 |
printf("pcnet: INTA=%d\n", isr);
|
| 782 |
#endif
|
| 783 |
} |
| 784 |
qemu_set_irq(s->irq, isr); |
| 785 |
s->isr = isr; |
| 786 |
} |
| 787 |
|
| 788 |
static void pcnet_init(PCNetState *s) |
| 789 |
{
|
| 790 |
int rlen, tlen;
|
| 791 |
uint16_t padr[3], ladrf[4], mode; |
| 792 |
uint32_t rdra, tdra; |
| 793 |
|
| 794 |
#ifdef PCNET_DEBUG
|
| 795 |
printf("pcnet_init init_addr=0x%08x\n", PHYSADDR(s,CSR_IADR(s)));
|
| 796 |
#endif
|
| 797 |
|
| 798 |
if (BCR_SSIZE32(s)) {
|
| 799 |
struct pcnet_initblk32 initblk;
|
| 800 |
s->phys_mem_read(s->dma_opaque, PHYSADDR(s,CSR_IADR(s)), |
| 801 |
(uint8_t *)&initblk, sizeof(initblk), 0); |
| 802 |
mode = le16_to_cpu(initblk.mode); |
| 803 |
rlen = initblk.rlen >> 4;
|
| 804 |
tlen = initblk.tlen >> 4;
|
| 805 |
ladrf[0] = le16_to_cpu(initblk.ladrf[0]); |
| 806 |
ladrf[1] = le16_to_cpu(initblk.ladrf[1]); |
| 807 |
ladrf[2] = le16_to_cpu(initblk.ladrf[2]); |
| 808 |
ladrf[3] = le16_to_cpu(initblk.ladrf[3]); |
| 809 |
padr[0] = le16_to_cpu(initblk.padr[0]); |
| 810 |
padr[1] = le16_to_cpu(initblk.padr[1]); |
| 811 |
padr[2] = le16_to_cpu(initblk.padr[2]); |
| 812 |
rdra = le32_to_cpu(initblk.rdra); |
| 813 |
tdra = le32_to_cpu(initblk.tdra); |
| 814 |
} else {
|
| 815 |
struct pcnet_initblk16 initblk;
|
| 816 |
s->phys_mem_read(s->dma_opaque, PHYSADDR(s,CSR_IADR(s)), |
| 817 |
(uint8_t *)&initblk, sizeof(initblk), 0); |
| 818 |
mode = le16_to_cpu(initblk.mode); |
| 819 |
ladrf[0] = le16_to_cpu(initblk.ladrf[0]); |
| 820 |
ladrf[1] = le16_to_cpu(initblk.ladrf[1]); |
| 821 |
ladrf[2] = le16_to_cpu(initblk.ladrf[2]); |
| 822 |
ladrf[3] = le16_to_cpu(initblk.ladrf[3]); |
| 823 |
padr[0] = le16_to_cpu(initblk.padr[0]); |
| 824 |
padr[1] = le16_to_cpu(initblk.padr[1]); |
| 825 |
padr[2] = le16_to_cpu(initblk.padr[2]); |
| 826 |
rdra = le32_to_cpu(initblk.rdra); |
| 827 |
tdra = le32_to_cpu(initblk.tdra); |
| 828 |
rlen = rdra >> 29;
|
| 829 |
tlen = tdra >> 29;
|
| 830 |
rdra &= 0x00ffffff;
|
| 831 |
tdra &= 0x00ffffff;
|
| 832 |
} |
| 833 |
|
| 834 |
#if defined(PCNET_DEBUG)
|
| 835 |
printf("rlen=%d tlen=%d\n", rlen, tlen);
|
| 836 |
#endif
|
| 837 |
|
| 838 |
CSR_RCVRL(s) = (rlen < 9) ? (1 << rlen) : 512; |
| 839 |
CSR_XMTRL(s) = (tlen < 9) ? (1 << tlen) : 512; |
| 840 |
s->csr[ 6] = (tlen << 12) | (rlen << 8); |
| 841 |
s->csr[15] = mode;
|
| 842 |
s->csr[ 8] = ladrf[0]; |
| 843 |
s->csr[ 9] = ladrf[1]; |
| 844 |
s->csr[10] = ladrf[2]; |
| 845 |
s->csr[11] = ladrf[3]; |
| 846 |
s->csr[12] = padr[0]; |
| 847 |
s->csr[13] = padr[1]; |
| 848 |
s->csr[14] = padr[2]; |
| 849 |
s->rdra = PHYSADDR(s, rdra); |
| 850 |
s->tdra = PHYSADDR(s, tdra); |
| 851 |
|
| 852 |
CSR_RCVRC(s) = CSR_RCVRL(s); |
| 853 |
CSR_XMTRC(s) = CSR_XMTRL(s); |
| 854 |
|
| 855 |
#ifdef PCNET_DEBUG
|
| 856 |
printf("pcnet ss32=%d rdra=0x%08x[%d] tdra=0x%08x[%d]\n",
|
| 857 |
BCR_SSIZE32(s), |
| 858 |
s->rdra, CSR_RCVRL(s), s->tdra, CSR_XMTRL(s)); |
| 859 |
#endif
|
| 860 |
|
| 861 |
s->csr[0] |= 0x0101; |
| 862 |
s->csr[0] &= ~0x0004; /* clear STOP bit */ |
| 863 |
} |
| 864 |
|
| 865 |
static void pcnet_start(PCNetState *s) |
| 866 |
{
|
| 867 |
#ifdef PCNET_DEBUG
|
| 868 |
printf("pcnet_start\n");
|
| 869 |
#endif
|
| 870 |
|
| 871 |
if (!CSR_DTX(s))
|
| 872 |
s->csr[0] |= 0x0010; /* set TXON */ |
| 873 |
|
| 874 |
if (!CSR_DRX(s))
|
| 875 |
s->csr[0] |= 0x0020; /* set RXON */ |
| 876 |
|
| 877 |
s->csr[0] &= ~0x0004; /* clear STOP bit */ |
| 878 |
s->csr[0] |= 0x0002; |
| 879 |
pcnet_poll_timer(s); |
| 880 |
} |
| 881 |
|
| 882 |
static void pcnet_stop(PCNetState *s) |
| 883 |
{
|
| 884 |
#ifdef PCNET_DEBUG
|
| 885 |
printf("pcnet_stop\n");
|
| 886 |
#endif
|
| 887 |
s->csr[0] &= ~0x7feb; |
| 888 |
s->csr[0] |= 0x0014; |
| 889 |
s->csr[4] &= ~0x02c2; |
| 890 |
s->csr[5] &= ~0x0011; |
| 891 |
pcnet_poll_timer(s); |
| 892 |
} |
| 893 |
|
| 894 |
static void pcnet_rdte_poll(PCNetState *s) |
| 895 |
{
|
| 896 |
s->csr[28] = s->csr[29] = 0; |
| 897 |
if (s->rdra) {
|
| 898 |
int bad = 0; |
| 899 |
#if 1 |
| 900 |
target_phys_addr_t crda = pcnet_rdra_addr(s, CSR_RCVRC(s)); |
| 901 |
target_phys_addr_t nrda = pcnet_rdra_addr(s, -1 + CSR_RCVRC(s));
|
| 902 |
target_phys_addr_t nnrd = pcnet_rdra_addr(s, -2 + CSR_RCVRC(s));
|
| 903 |
#else
|
| 904 |
target_phys_addr_t crda = s->rdra + |
| 905 |
(CSR_RCVRL(s) - CSR_RCVRC(s)) * |
| 906 |
(BCR_SWSTYLE(s) ? 16 : 8 ); |
| 907 |
int nrdc = CSR_RCVRC(s)<=1 ? CSR_RCVRL(s) : CSR_RCVRC(s)-1; |
| 908 |
target_phys_addr_t nrda = s->rdra + |
| 909 |
(CSR_RCVRL(s) - nrdc) * |
| 910 |
(BCR_SWSTYLE(s) ? 16 : 8 ); |
| 911 |
int nnrc = nrdc<=1 ? CSR_RCVRL(s) : nrdc-1; |
| 912 |
target_phys_addr_t nnrd = s->rdra + |
| 913 |
(CSR_RCVRL(s) - nnrc) * |
| 914 |
(BCR_SWSTYLE(s) ? 16 : 8 ); |
| 915 |
#endif
|
| 916 |
|
| 917 |
CHECK_RMD(crda, bad); |
| 918 |
if (!bad) {
|
| 919 |
CHECK_RMD(nrda, bad); |
| 920 |
if (bad || (nrda == crda)) nrda = 0; |
| 921 |
CHECK_RMD(nnrd, bad); |
| 922 |
if (bad || (nnrd == crda)) nnrd = 0; |
| 923 |
|
| 924 |
s->csr[28] = crda & 0xffff; |
| 925 |
s->csr[29] = crda >> 16; |
| 926 |
s->csr[26] = nrda & 0xffff; |
| 927 |
s->csr[27] = nrda >> 16; |
| 928 |
s->csr[36] = nnrd & 0xffff; |
| 929 |
s->csr[37] = nnrd >> 16; |
| 930 |
#ifdef PCNET_DEBUG
|
| 931 |
if (bad) {
|
| 932 |
printf("pcnet: BAD RMD RECORDS AFTER 0x" TARGET_FMT_plx "\n", |
| 933 |
crda); |
| 934 |
} |
| 935 |
} else {
|
| 936 |
printf("pcnet: BAD RMD RDA=0x" TARGET_FMT_plx "\n", |
| 937 |
crda); |
| 938 |
#endif
|
| 939 |
} |
| 940 |
} |
| 941 |
|
| 942 |
if (CSR_CRDA(s)) {
|
| 943 |
struct pcnet_RMD rmd;
|
| 944 |
RMDLOAD(&rmd, PHYSADDR(s,CSR_CRDA(s))); |
| 945 |
CSR_CRBC(s) = GET_FIELD(rmd.buf_length, RMDL, BCNT); |
| 946 |
CSR_CRST(s) = rmd.status; |
| 947 |
#ifdef PCNET_DEBUG_RMD_X
|
| 948 |
printf("CRDA=0x%08x CRST=0x%04x RCVRC=%d RMDL=0x%04x RMDS=0x%04x RMDM=0x%08x\n",
|
| 949 |
PHYSADDR(s,CSR_CRDA(s)), CSR_CRST(s), CSR_RCVRC(s), |
| 950 |
rmd.buf_length, rmd.status, rmd.msg_length); |
| 951 |
PRINT_RMD(&rmd); |
| 952 |
#endif
|
| 953 |
} else {
|
| 954 |
CSR_CRBC(s) = CSR_CRST(s) = 0;
|
| 955 |
} |
| 956 |
|
| 957 |
if (CSR_NRDA(s)) {
|
| 958 |
struct pcnet_RMD rmd;
|
| 959 |
RMDLOAD(&rmd, PHYSADDR(s,CSR_NRDA(s))); |
| 960 |
CSR_NRBC(s) = GET_FIELD(rmd.buf_length, RMDL, BCNT); |
| 961 |
CSR_NRST(s) = rmd.status; |
| 962 |
} else {
|
| 963 |
CSR_NRBC(s) = CSR_NRST(s) = 0;
|
| 964 |
} |
| 965 |
|
| 966 |
} |
| 967 |
|
| 968 |
static int pcnet_tdte_poll(PCNetState *s) |
| 969 |
{
|
| 970 |
s->csr[34] = s->csr[35] = 0; |
| 971 |
if (s->tdra) {
|
| 972 |
target_phys_addr_t cxda = s->tdra + |
| 973 |
(CSR_XMTRL(s) - CSR_XMTRC(s)) * |
| 974 |
(BCR_SWSTYLE(s) ? 16 : 8); |
| 975 |
int bad = 0; |
| 976 |
CHECK_TMD(cxda, bad); |
| 977 |
if (!bad) {
|
| 978 |
if (CSR_CXDA(s) != cxda) {
|
| 979 |
s->csr[60] = s->csr[34]; |
| 980 |
s->csr[61] = s->csr[35]; |
| 981 |
s->csr[62] = CSR_CXBC(s);
|
| 982 |
s->csr[63] = CSR_CXST(s);
|
| 983 |
} |
| 984 |
s->csr[34] = cxda & 0xffff; |
| 985 |
s->csr[35] = cxda >> 16; |
| 986 |
#ifdef PCNET_DEBUG_X
|
| 987 |
printf("pcnet: BAD TMD XDA=0x%08x\n", cxda);
|
| 988 |
#endif
|
| 989 |
} |
| 990 |
} |
| 991 |
|
| 992 |
if (CSR_CXDA(s)) {
|
| 993 |
struct pcnet_TMD tmd;
|
| 994 |
|
| 995 |
TMDLOAD(&tmd, PHYSADDR(s,CSR_CXDA(s))); |
| 996 |
|
| 997 |
CSR_CXBC(s) = GET_FIELD(tmd.length, TMDL, BCNT); |
| 998 |
CSR_CXST(s) = tmd.status; |
| 999 |
} else {
|
| 1000 |
CSR_CXBC(s) = CSR_CXST(s) = 0;
|
| 1001 |
} |
| 1002 |
|
| 1003 |
return !!(CSR_CXST(s) & 0x8000); |
| 1004 |
} |
| 1005 |
|
| 1006 |
int pcnet_can_receive(VLANClientState *nc)
|
| 1007 |
{
|
| 1008 |
PCNetState *s = DO_UPCAST(NICState, nc, nc)->opaque; |
| 1009 |
if (CSR_STOP(s) || CSR_SPND(s))
|
| 1010 |
return 0; |
| 1011 |
|
| 1012 |
return sizeof(s->buffer)-16; |
| 1013 |
} |
| 1014 |
|
| 1015 |
#define MIN_BUF_SIZE 60 |
| 1016 |
|
| 1017 |
ssize_t pcnet_receive(VLANClientState *nc, const uint8_t *buf, size_t size_)
|
| 1018 |
{
|
| 1019 |
PCNetState *s = DO_UPCAST(NICState, nc, nc)->opaque; |
| 1020 |
int is_padr = 0, is_bcast = 0, is_ladr = 0; |
| 1021 |
uint8_t buf1[60];
|
| 1022 |
int remaining;
|
| 1023 |
int crc_err = 0; |
| 1024 |
int size = size_;
|
| 1025 |
|
| 1026 |
if (CSR_DRX(s) || CSR_STOP(s) || CSR_SPND(s) || !size ||
|
| 1027 |
(CSR_LOOP(s) && !s->looptest)) {
|
| 1028 |
return -1; |
| 1029 |
} |
| 1030 |
#ifdef PCNET_DEBUG
|
| 1031 |
printf("pcnet_receive size=%d\n", size);
|
| 1032 |
#endif
|
| 1033 |
|
| 1034 |
/* if too small buffer, then expand it */
|
| 1035 |
if (size < MIN_BUF_SIZE) {
|
| 1036 |
memcpy(buf1, buf, size); |
| 1037 |
memset(buf1 + size, 0, MIN_BUF_SIZE - size);
|
| 1038 |
buf = buf1; |
| 1039 |
size = MIN_BUF_SIZE; |
| 1040 |
} |
| 1041 |
|
| 1042 |
if (CSR_PROM(s)
|
| 1043 |
|| (is_padr=padr_match(s, buf, size)) |
| 1044 |
|| (is_bcast=padr_bcast(s, buf, size)) |
| 1045 |
|| (is_ladr=ladr_match(s, buf, size))) {
|
| 1046 |
|
| 1047 |
pcnet_rdte_poll(s); |
| 1048 |
|
| 1049 |
if (!(CSR_CRST(s) & 0x8000) && s->rdra) { |
| 1050 |
struct pcnet_RMD rmd;
|
| 1051 |
int rcvrc = CSR_RCVRC(s)-1,i; |
| 1052 |
target_phys_addr_t nrda; |
| 1053 |
for (i = CSR_RCVRL(s)-1; i > 0; i--, rcvrc--) { |
| 1054 |
if (rcvrc <= 1) |
| 1055 |
rcvrc = CSR_RCVRL(s); |
| 1056 |
nrda = s->rdra + |
| 1057 |
(CSR_RCVRL(s) - rcvrc) * |
| 1058 |
(BCR_SWSTYLE(s) ? 16 : 8 ); |
| 1059 |
RMDLOAD(&rmd, nrda); |
| 1060 |
if (GET_FIELD(rmd.status, RMDS, OWN)) {
|
| 1061 |
#ifdef PCNET_DEBUG_RMD
|
| 1062 |
printf("pcnet - scan buffer: RCVRC=%d PREV_RCVRC=%d\n",
|
| 1063 |
rcvrc, CSR_RCVRC(s)); |
| 1064 |
#endif
|
| 1065 |
CSR_RCVRC(s) = rcvrc; |
| 1066 |
pcnet_rdte_poll(s); |
| 1067 |
break;
|
| 1068 |
} |
| 1069 |
} |
| 1070 |
} |
| 1071 |
|
| 1072 |
if (!(CSR_CRST(s) & 0x8000)) { |
| 1073 |
#ifdef PCNET_DEBUG_RMD
|
| 1074 |
printf("pcnet - no buffer: RCVRC=%d\n", CSR_RCVRC(s));
|
| 1075 |
#endif
|
| 1076 |
s->csr[0] |= 0x1000; /* Set MISS flag */ |
| 1077 |
CSR_MISSC(s)++; |
| 1078 |
} else {
|
| 1079 |
uint8_t *src = s->buffer; |
| 1080 |
target_phys_addr_t crda = CSR_CRDA(s); |
| 1081 |
struct pcnet_RMD rmd;
|
| 1082 |
int pktcount = 0; |
| 1083 |
|
| 1084 |
if (!s->looptest) {
|
| 1085 |
memcpy(src, buf, size); |
| 1086 |
/* no need to compute the CRC */
|
| 1087 |
src[size] = 0;
|
| 1088 |
src[size + 1] = 0; |
| 1089 |
src[size + 2] = 0; |
| 1090 |
src[size + 3] = 0; |
| 1091 |
size += 4;
|
| 1092 |
} else if (s->looptest == PCNET_LOOPTEST_CRC || |
| 1093 |
!CSR_DXMTFCS(s) || size < MIN_BUF_SIZE+4) {
|
| 1094 |
uint32_t fcs = ~0;
|
| 1095 |
uint8_t *p = src; |
| 1096 |
|
| 1097 |
while (p != &src[size])
|
| 1098 |
CRC(fcs, *p++); |
| 1099 |
*(uint32_t *)p = htonl(fcs); |
| 1100 |
size += 4;
|
| 1101 |
} else {
|
| 1102 |
uint32_t fcs = ~0;
|
| 1103 |
uint8_t *p = src; |
| 1104 |
|
| 1105 |
while (p != &src[size-4]) |
| 1106 |
CRC(fcs, *p++); |
| 1107 |
crc_err = (*(uint32_t *)p != htonl(fcs)); |
| 1108 |
} |
| 1109 |
|
| 1110 |
#ifdef PCNET_DEBUG_MATCH
|
| 1111 |
PRINT_PKTHDR(buf); |
| 1112 |
#endif
|
| 1113 |
|
| 1114 |
RMDLOAD(&rmd, PHYSADDR(s,crda)); |
| 1115 |
/*if (!CSR_LAPPEN(s))*/
|
| 1116 |
SET_FIELD(&rmd.status, RMDS, STP, 1);
|
| 1117 |
|
| 1118 |
#define PCNET_RECV_STORE() do { \ |
| 1119 |
int count = MIN(4096 - GET_FIELD(rmd.buf_length, RMDL, BCNT),remaining); \ |
| 1120 |
target_phys_addr_t rbadr = PHYSADDR(s, rmd.rbadr); \ |
| 1121 |
s->phys_mem_write(s->dma_opaque, rbadr, src, count, CSR_BSWP(s)); \ |
| 1122 |
src += count; remaining -= count; \ |
| 1123 |
SET_FIELD(&rmd.status, RMDS, OWN, 0); \
|
| 1124 |
RMDSTORE(&rmd, PHYSADDR(s,crda)); \ |
| 1125 |
pktcount++; \ |
| 1126 |
} while (0) |
| 1127 |
|
| 1128 |
remaining = size; |
| 1129 |
PCNET_RECV_STORE(); |
| 1130 |
if ((remaining > 0) && CSR_NRDA(s)) { |
| 1131 |
target_phys_addr_t nrda = CSR_NRDA(s); |
| 1132 |
#ifdef PCNET_DEBUG_RMD
|
| 1133 |
PRINT_RMD(&rmd); |
| 1134 |
#endif
|
| 1135 |
RMDLOAD(&rmd, PHYSADDR(s,nrda)); |
| 1136 |
if (GET_FIELD(rmd.status, RMDS, OWN)) {
|
| 1137 |
crda = nrda; |
| 1138 |
PCNET_RECV_STORE(); |
| 1139 |
#ifdef PCNET_DEBUG_RMD
|
| 1140 |
PRINT_RMD(&rmd); |
| 1141 |
#endif
|
| 1142 |
if ((remaining > 0) && (nrda=CSR_NNRD(s))) { |
| 1143 |
RMDLOAD(&rmd, PHYSADDR(s,nrda)); |
| 1144 |
if (GET_FIELD(rmd.status, RMDS, OWN)) {
|
| 1145 |
crda = nrda; |
| 1146 |
PCNET_RECV_STORE(); |
| 1147 |
} |
| 1148 |
} |
| 1149 |
} |
| 1150 |
} |
| 1151 |
|
| 1152 |
#undef PCNET_RECV_STORE
|
| 1153 |
|
| 1154 |
RMDLOAD(&rmd, PHYSADDR(s,crda)); |
| 1155 |
if (remaining == 0) { |
| 1156 |
SET_FIELD(&rmd.msg_length, RMDM, MCNT, size); |
| 1157 |
SET_FIELD(&rmd.status, RMDS, ENP, 1);
|
| 1158 |
SET_FIELD(&rmd.status, RMDS, PAM, !CSR_PROM(s) && is_padr); |
| 1159 |
SET_FIELD(&rmd.status, RMDS, LFAM, !CSR_PROM(s) && is_ladr); |
| 1160 |
SET_FIELD(&rmd.status, RMDS, BAM, !CSR_PROM(s) && is_bcast); |
| 1161 |
if (crc_err) {
|
| 1162 |
SET_FIELD(&rmd.status, RMDS, CRC, 1);
|
| 1163 |
SET_FIELD(&rmd.status, RMDS, ERR, 1);
|
| 1164 |
} |
| 1165 |
} else {
|
| 1166 |
SET_FIELD(&rmd.status, RMDS, OFLO, 1);
|
| 1167 |
SET_FIELD(&rmd.status, RMDS, BUFF, 1);
|
| 1168 |
SET_FIELD(&rmd.status, RMDS, ERR, 1);
|
| 1169 |
} |
| 1170 |
RMDSTORE(&rmd, PHYSADDR(s,crda)); |
| 1171 |
s->csr[0] |= 0x0400; |
| 1172 |
|
| 1173 |
#ifdef PCNET_DEBUG
|
| 1174 |
printf("RCVRC=%d CRDA=0x%08x BLKS=%d\n",
|
| 1175 |
CSR_RCVRC(s), PHYSADDR(s,CSR_CRDA(s)), pktcount); |
| 1176 |
#endif
|
| 1177 |
#ifdef PCNET_DEBUG_RMD
|
| 1178 |
PRINT_RMD(&rmd); |
| 1179 |
#endif
|
| 1180 |
|
| 1181 |
while (pktcount--) {
|
| 1182 |
if (CSR_RCVRC(s) <= 1) |
| 1183 |
CSR_RCVRC(s) = CSR_RCVRL(s); |
| 1184 |
else
|
| 1185 |
CSR_RCVRC(s)--; |
| 1186 |
} |
| 1187 |
|
| 1188 |
pcnet_rdte_poll(s); |
| 1189 |
|
| 1190 |
} |
| 1191 |
} |
| 1192 |
|
| 1193 |
pcnet_poll(s); |
| 1194 |
pcnet_update_irq(s); |
| 1195 |
|
| 1196 |
return size_;
|
| 1197 |
} |
| 1198 |
|
| 1199 |
void pcnet_set_link_status(VLANClientState *nc)
|
| 1200 |
{
|
| 1201 |
PCNetState *d = DO_UPCAST(NICState, nc, nc)->opaque; |
| 1202 |
|
| 1203 |
d->lnkst = nc->link_down ? 0 : 0x40; |
| 1204 |
} |
| 1205 |
|
| 1206 |
static void pcnet_transmit(PCNetState *s) |
| 1207 |
{
|
| 1208 |
target_phys_addr_t xmit_cxda = 0;
|
| 1209 |
int count = CSR_XMTRL(s)-1; |
| 1210 |
int add_crc = 0; |
| 1211 |
|
| 1212 |
s->xmit_pos = -1;
|
| 1213 |
|
| 1214 |
if (!CSR_TXON(s)) {
|
| 1215 |
s->csr[0] &= ~0x0008; |
| 1216 |
return;
|
| 1217 |
} |
| 1218 |
|
| 1219 |
s->tx_busy = 1;
|
| 1220 |
|
| 1221 |
txagain:
|
| 1222 |
if (pcnet_tdte_poll(s)) {
|
| 1223 |
struct pcnet_TMD tmd;
|
| 1224 |
|
| 1225 |
TMDLOAD(&tmd, PHYSADDR(s,CSR_CXDA(s))); |
| 1226 |
|
| 1227 |
#ifdef PCNET_DEBUG_TMD
|
| 1228 |
printf(" TMDLOAD 0x%08x\n", PHYSADDR(s,CSR_CXDA(s)));
|
| 1229 |
PRINT_TMD(&tmd); |
| 1230 |
#endif
|
| 1231 |
if (GET_FIELD(tmd.status, TMDS, STP)) {
|
| 1232 |
s->xmit_pos = 0;
|
| 1233 |
xmit_cxda = PHYSADDR(s,CSR_CXDA(s)); |
| 1234 |
if (BCR_SWSTYLE(s) != 1) |
| 1235 |
add_crc = GET_FIELD(tmd.status, TMDS, ADDFCS); |
| 1236 |
} |
| 1237 |
if (!GET_FIELD(tmd.status, TMDS, ENP)) {
|
| 1238 |
int bcnt = 4096 - GET_FIELD(tmd.length, TMDL, BCNT); |
| 1239 |
s->phys_mem_read(s->dma_opaque, PHYSADDR(s, tmd.tbadr), |
| 1240 |
s->buffer + s->xmit_pos, bcnt, CSR_BSWP(s)); |
| 1241 |
s->xmit_pos += bcnt; |
| 1242 |
} else if (s->xmit_pos >= 0) { |
| 1243 |
int bcnt = 4096 - GET_FIELD(tmd.length, TMDL, BCNT); |
| 1244 |
s->phys_mem_read(s->dma_opaque, PHYSADDR(s, tmd.tbadr), |
| 1245 |
s->buffer + s->xmit_pos, bcnt, CSR_BSWP(s)); |
| 1246 |
s->xmit_pos += bcnt; |
| 1247 |
#ifdef PCNET_DEBUG
|
| 1248 |
printf("pcnet_transmit size=%d\n", s->xmit_pos);
|
| 1249 |
#endif
|
| 1250 |
if (CSR_LOOP(s)) {
|
| 1251 |
if (BCR_SWSTYLE(s) == 1) |
| 1252 |
add_crc = !GET_FIELD(tmd.status, TMDS, NOFCS); |
| 1253 |
s->looptest = add_crc ? PCNET_LOOPTEST_CRC : PCNET_LOOPTEST_NOCRC; |
| 1254 |
pcnet_receive(&s->nic->nc, s->buffer, s->xmit_pos); |
| 1255 |
s->looptest = 0;
|
| 1256 |
} else
|
| 1257 |
if (s->nic)
|
| 1258 |
qemu_send_packet(&s->nic->nc, s->buffer, s->xmit_pos); |
| 1259 |
|
| 1260 |
s->csr[0] &= ~0x0008; /* clear TDMD */ |
| 1261 |
s->csr[4] |= 0x0004; /* set TXSTRT */ |
| 1262 |
s->xmit_pos = -1;
|
| 1263 |
} |
| 1264 |
|
| 1265 |
SET_FIELD(&tmd.status, TMDS, OWN, 0);
|
| 1266 |
TMDSTORE(&tmd, PHYSADDR(s,CSR_CXDA(s))); |
| 1267 |
if (!CSR_TOKINTD(s) || (CSR_LTINTEN(s) && GET_FIELD(tmd.status, TMDS, LTINT)))
|
| 1268 |
s->csr[0] |= 0x0200; /* set TINT */ |
| 1269 |
|
| 1270 |
if (CSR_XMTRC(s)<=1) |
| 1271 |
CSR_XMTRC(s) = CSR_XMTRL(s); |
| 1272 |
else
|
| 1273 |
CSR_XMTRC(s)--; |
| 1274 |
if (count--)
|
| 1275 |
goto txagain;
|
| 1276 |
|
| 1277 |
} else
|
| 1278 |
if (s->xmit_pos >= 0) { |
| 1279 |
struct pcnet_TMD tmd;
|
| 1280 |
TMDLOAD(&tmd, xmit_cxda); |
| 1281 |
SET_FIELD(&tmd.misc, TMDM, BUFF, 1);
|
| 1282 |
SET_FIELD(&tmd.misc, TMDM, UFLO, 1);
|
| 1283 |
SET_FIELD(&tmd.status, TMDS, ERR, 1);
|
| 1284 |
SET_FIELD(&tmd.status, TMDS, OWN, 0);
|
| 1285 |
TMDSTORE(&tmd, xmit_cxda); |
| 1286 |
s->csr[0] |= 0x0200; /* set TINT */ |
| 1287 |
if (!CSR_DXSUFLO(s)) {
|
| 1288 |
s->csr[0] &= ~0x0010; |
| 1289 |
} else
|
| 1290 |
if (count--)
|
| 1291 |
goto txagain;
|
| 1292 |
} |
| 1293 |
|
| 1294 |
s->tx_busy = 0;
|
| 1295 |
} |
| 1296 |
|
| 1297 |
static void pcnet_poll(PCNetState *s) |
| 1298 |
{
|
| 1299 |
if (CSR_RXON(s)) {
|
| 1300 |
pcnet_rdte_poll(s); |
| 1301 |
} |
| 1302 |
|
| 1303 |
if (CSR_TDMD(s) ||
|
| 1304 |
(CSR_TXON(s) && !CSR_DPOLL(s) && pcnet_tdte_poll(s))) |
| 1305 |
{
|
| 1306 |
/* prevent recursion */
|
| 1307 |
if (s->tx_busy)
|
| 1308 |
return;
|
| 1309 |
|
| 1310 |
pcnet_transmit(s); |
| 1311 |
} |
| 1312 |
} |
| 1313 |
|
| 1314 |
static void pcnet_poll_timer(void *opaque) |
| 1315 |
{
|
| 1316 |
PCNetState *s = opaque; |
| 1317 |
|
| 1318 |
qemu_del_timer(s->poll_timer); |
| 1319 |
|
| 1320 |
if (CSR_TDMD(s)) {
|
| 1321 |
pcnet_transmit(s); |
| 1322 |
} |
| 1323 |
|
| 1324 |
pcnet_update_irq(s); |
| 1325 |
|
| 1326 |
if (!CSR_STOP(s) && !CSR_SPND(s) && !CSR_DPOLL(s)) {
|
| 1327 |
uint64_t now = qemu_get_clock_ns(vm_clock) * 33;
|
| 1328 |
if (!s->timer || !now)
|
| 1329 |
s->timer = now; |
| 1330 |
else {
|
| 1331 |
uint64_t t = now - s->timer + CSR_POLL(s); |
| 1332 |
if (t > 0xffffLL) { |
| 1333 |
pcnet_poll(s); |
| 1334 |
CSR_POLL(s) = CSR_PINT(s); |
| 1335 |
} else
|
| 1336 |
CSR_POLL(s) = t; |
| 1337 |
} |
| 1338 |
qemu_mod_timer(s->poll_timer, |
| 1339 |
pcnet_get_next_poll_time(s,qemu_get_clock_ns(vm_clock))); |
| 1340 |
} |
| 1341 |
} |
| 1342 |
|
| 1343 |
|
| 1344 |
static void pcnet_csr_writew(PCNetState *s, uint32_t rap, uint32_t new_value) |
| 1345 |
{
|
| 1346 |
uint16_t val = new_value; |
| 1347 |
#ifdef PCNET_DEBUG_CSR
|
| 1348 |
printf("pcnet_csr_writew rap=%d val=0x%04x\n", rap, val);
|
| 1349 |
#endif
|
| 1350 |
switch (rap) {
|
| 1351 |
case 0: |
| 1352 |
s->csr[0] &= ~(val & 0x7f00); /* Clear any interrupt flags */ |
| 1353 |
|
| 1354 |
s->csr[0] = (s->csr[0] & ~0x0040) | (val & 0x0048); |
| 1355 |
|
| 1356 |
val = (val & 0x007f) | (s->csr[0] & 0x7f00); |
| 1357 |
|
| 1358 |
/* IFF STOP, STRT and INIT are set, clear STRT and INIT */
|
| 1359 |
if ((val&7) == 7) |
| 1360 |
val &= ~3;
|
| 1361 |
|
| 1362 |
if (!CSR_STOP(s) && (val & 4)) |
| 1363 |
pcnet_stop(s); |
| 1364 |
|
| 1365 |
if (!CSR_INIT(s) && (val & 1)) |
| 1366 |
pcnet_init(s); |
| 1367 |
|
| 1368 |
if (!CSR_STRT(s) && (val & 2)) |
| 1369 |
pcnet_start(s); |
| 1370 |
|
| 1371 |
if (CSR_TDMD(s))
|
| 1372 |
pcnet_transmit(s); |
| 1373 |
|
| 1374 |
return;
|
| 1375 |
case 1: |
| 1376 |
case 2: |
| 1377 |
case 8: |
| 1378 |
case 9: |
| 1379 |
case 10: |
| 1380 |
case 11: |
| 1381 |
case 12: |
| 1382 |
case 13: |
| 1383 |
case 14: |
| 1384 |
case 15: |
| 1385 |
case 18: /* CRBAL */ |
| 1386 |
case 19: /* CRBAU */ |
| 1387 |
case 20: /* CXBAL */ |
| 1388 |
case 21: /* CXBAU */ |
| 1389 |
case 22: /* NRBAU */ |
| 1390 |
case 23: /* NRBAU */ |
| 1391 |
case 24: |
| 1392 |
case 25: |
| 1393 |
case 26: |
| 1394 |
case 27: |
| 1395 |
case 28: |
| 1396 |
case 29: |
| 1397 |
case 30: |
| 1398 |
case 31: |
| 1399 |
case 32: |
| 1400 |
case 33: |
| 1401 |
case 34: |
| 1402 |
case 35: |
| 1403 |
case 36: |
| 1404 |
case 37: |
| 1405 |
case 38: |
| 1406 |
case 39: |
| 1407 |
case 40: /* CRBC */ |
| 1408 |
case 41: |
| 1409 |
case 42: /* CXBC */ |
| 1410 |
case 43: |
| 1411 |
case 44: |
| 1412 |
case 45: |
| 1413 |
case 46: /* POLL */ |
| 1414 |
case 47: /* POLLINT */ |
| 1415 |
case 72: |
| 1416 |
case 74: |
| 1417 |
case 76: /* RCVRL */ |
| 1418 |
case 78: /* XMTRL */ |
| 1419 |
case 112: |
| 1420 |
if (CSR_STOP(s) || CSR_SPND(s))
|
| 1421 |
break;
|
| 1422 |
return;
|
| 1423 |
case 3: |
| 1424 |
break;
|
| 1425 |
case 4: |
| 1426 |
s->csr[4] &= ~(val & 0x026a); |
| 1427 |
val &= ~0x026a; val |= s->csr[4] & 0x026a; |
| 1428 |
break;
|
| 1429 |
case 5: |
| 1430 |
s->csr[5] &= ~(val & 0x0a90); |
| 1431 |
val &= ~0x0a90; val |= s->csr[5] & 0x0a90; |
| 1432 |
break;
|
| 1433 |
case 16: |
| 1434 |
pcnet_csr_writew(s,1,val);
|
| 1435 |
return;
|
| 1436 |
case 17: |
| 1437 |
pcnet_csr_writew(s,2,val);
|
| 1438 |
return;
|
| 1439 |
case 58: |
| 1440 |
pcnet_bcr_writew(s,BCR_SWS,val); |
| 1441 |
break;
|
| 1442 |
default:
|
| 1443 |
return;
|
| 1444 |
} |
| 1445 |
s->csr[rap] = val; |
| 1446 |
} |
| 1447 |
|
| 1448 |
static uint32_t pcnet_csr_readw(PCNetState *s, uint32_t rap)
|
| 1449 |
{
|
| 1450 |
uint32_t val; |
| 1451 |
switch (rap) {
|
| 1452 |
case 0: |
| 1453 |
pcnet_update_irq(s); |
| 1454 |
val = s->csr[0];
|
| 1455 |
val |= (val & 0x7800) ? 0x8000 : 0; |
| 1456 |
break;
|
| 1457 |
case 16: |
| 1458 |
return pcnet_csr_readw(s,1); |
| 1459 |
case 17: |
| 1460 |
return pcnet_csr_readw(s,2); |
| 1461 |
case 58: |
| 1462 |
return pcnet_bcr_readw(s,BCR_SWS);
|
| 1463 |
case 88: |
| 1464 |
val = s->csr[89];
|
| 1465 |
val <<= 16;
|
| 1466 |
val |= s->csr[88];
|
| 1467 |
break;
|
| 1468 |
default:
|
| 1469 |
val = s->csr[rap]; |
| 1470 |
} |
| 1471 |
#ifdef PCNET_DEBUG_CSR
|
| 1472 |
printf("pcnet_csr_readw rap=%d val=0x%04x\n", rap, val);
|
| 1473 |
#endif
|
| 1474 |
return val;
|
| 1475 |
} |
| 1476 |
|
| 1477 |
static void pcnet_bcr_writew(PCNetState *s, uint32_t rap, uint32_t val) |
| 1478 |
{
|
| 1479 |
rap &= 127;
|
| 1480 |
#ifdef PCNET_DEBUG_BCR
|
| 1481 |
printf("pcnet_bcr_writew rap=%d val=0x%04x\n", rap, val);
|
| 1482 |
#endif
|
| 1483 |
switch (rap) {
|
| 1484 |
case BCR_SWS:
|
| 1485 |
if (!(CSR_STOP(s) || CSR_SPND(s)))
|
| 1486 |
return;
|
| 1487 |
val &= ~0x0300;
|
| 1488 |
switch (val & 0x00ff) { |
| 1489 |
case 0: |
| 1490 |
val |= 0x0200;
|
| 1491 |
break;
|
| 1492 |
case 1: |
| 1493 |
val |= 0x0100;
|
| 1494 |
break;
|
| 1495 |
case 2: |
| 1496 |
case 3: |
| 1497 |
val |= 0x0300;
|
| 1498 |
break;
|
| 1499 |
default:
|
| 1500 |
printf("Bad SWSTYLE=0x%02x\n", val & 0xff); |
| 1501 |
val = 0x0200;
|
| 1502 |
break;
|
| 1503 |
} |
| 1504 |
#ifdef PCNET_DEBUG
|
| 1505 |
printf("BCR_SWS=0x%04x\n", val);
|
| 1506 |
#endif
|
| 1507 |
/* fall through */
|
| 1508 |
case BCR_LNKST:
|
| 1509 |
case BCR_LED1:
|
| 1510 |
case BCR_LED2:
|
| 1511 |
case BCR_LED3:
|
| 1512 |
case BCR_MC:
|
| 1513 |
case BCR_FDC:
|
| 1514 |
case BCR_BSBC:
|
| 1515 |
case BCR_EECAS:
|
| 1516 |
case BCR_PLAT:
|
| 1517 |
s->bcr[rap] = val; |
| 1518 |
break;
|
| 1519 |
default:
|
| 1520 |
break;
|
| 1521 |
} |
| 1522 |
} |
| 1523 |
|
| 1524 |
uint32_t pcnet_bcr_readw(PCNetState *s, uint32_t rap) |
| 1525 |
{
|
| 1526 |
uint32_t val; |
| 1527 |
rap &= 127;
|
| 1528 |
switch (rap) {
|
| 1529 |
case BCR_LNKST:
|
| 1530 |
case BCR_LED1:
|
| 1531 |
case BCR_LED2:
|
| 1532 |
case BCR_LED3:
|
| 1533 |
val = s->bcr[rap] & ~0x8000;
|
| 1534 |
val |= (val & 0x017f & s->lnkst) ? 0x8000 : 0; |
| 1535 |
break;
|
| 1536 |
default:
|
| 1537 |
val = rap < 32 ? s->bcr[rap] : 0; |
| 1538 |
break;
|
| 1539 |
} |
| 1540 |
#ifdef PCNET_DEBUG_BCR
|
| 1541 |
printf("pcnet_bcr_readw rap=%d val=0x%04x\n", rap, val);
|
| 1542 |
#endif
|
| 1543 |
return val;
|
| 1544 |
} |
| 1545 |
|
| 1546 |
void pcnet_h_reset(void *opaque) |
| 1547 |
{
|
| 1548 |
PCNetState *s = opaque; |
| 1549 |
|
| 1550 |
s->bcr[BCR_MSRDA] = 0x0005;
|
| 1551 |
s->bcr[BCR_MSWRA] = 0x0005;
|
| 1552 |
s->bcr[BCR_MC ] = 0x0002;
|
| 1553 |
s->bcr[BCR_LNKST] = 0x00c0;
|
| 1554 |
s->bcr[BCR_LED1 ] = 0x0084;
|
| 1555 |
s->bcr[BCR_LED2 ] = 0x0088;
|
| 1556 |
s->bcr[BCR_LED3 ] = 0x0090;
|
| 1557 |
s->bcr[BCR_FDC ] = 0x0000;
|
| 1558 |
s->bcr[BCR_BSBC ] = 0x9001;
|
| 1559 |
s->bcr[BCR_EECAS] = 0x0002;
|
| 1560 |
s->bcr[BCR_SWS ] = 0x0200;
|
| 1561 |
s->bcr[BCR_PLAT ] = 0xff06;
|
| 1562 |
|
| 1563 |
pcnet_s_reset(s); |
| 1564 |
pcnet_update_irq(s); |
| 1565 |
pcnet_poll_timer(s); |
| 1566 |
} |
| 1567 |
|
| 1568 |
void pcnet_ioport_writew(void *opaque, uint32_t addr, uint32_t val) |
| 1569 |
{
|
| 1570 |
PCNetState *s = opaque; |
| 1571 |
pcnet_poll_timer(s); |
| 1572 |
#ifdef PCNET_DEBUG_IO
|
| 1573 |
printf("pcnet_ioport_writew addr=0x%08x val=0x%04x\n", addr, val);
|
| 1574 |
#endif
|
| 1575 |
if (!BCR_DWIO(s)) {
|
| 1576 |
switch (addr & 0x0f) { |
| 1577 |
case 0x00: /* RDP */ |
| 1578 |
pcnet_csr_writew(s, s->rap, val); |
| 1579 |
break;
|
| 1580 |
case 0x02: |
| 1581 |
s->rap = val & 0x7f;
|
| 1582 |
break;
|
| 1583 |
case 0x06: |
| 1584 |
pcnet_bcr_writew(s, s->rap, val); |
| 1585 |
break;
|
| 1586 |
} |
| 1587 |
} |
| 1588 |
pcnet_update_irq(s); |
| 1589 |
} |
| 1590 |
|
| 1591 |
uint32_t pcnet_ioport_readw(void *opaque, uint32_t addr)
|
| 1592 |
{
|
| 1593 |
PCNetState *s = opaque; |
| 1594 |
uint32_t val = -1;
|
| 1595 |
pcnet_poll_timer(s); |
| 1596 |
if (!BCR_DWIO(s)) {
|
| 1597 |
switch (addr & 0x0f) { |
| 1598 |
case 0x00: /* RDP */ |
| 1599 |
val = pcnet_csr_readw(s, s->rap); |
| 1600 |
break;
|
| 1601 |
case 0x02: |
| 1602 |
val = s->rap; |
| 1603 |
break;
|
| 1604 |
case 0x04: |
| 1605 |
pcnet_s_reset(s); |
| 1606 |
val = 0;
|
| 1607 |
break;
|
| 1608 |
case 0x06: |
| 1609 |
val = pcnet_bcr_readw(s, s->rap); |
| 1610 |
break;
|
| 1611 |
} |
| 1612 |
} |
| 1613 |
pcnet_update_irq(s); |
| 1614 |
#ifdef PCNET_DEBUG_IO
|
| 1615 |
printf("pcnet_ioport_readw addr=0x%08x val=0x%04x\n", addr, val & 0xffff); |
| 1616 |
#endif
|
| 1617 |
return val;
|
| 1618 |
} |
| 1619 |
|
| 1620 |
void pcnet_ioport_writel(void *opaque, uint32_t addr, uint32_t val) |
| 1621 |
{
|
| 1622 |
PCNetState *s = opaque; |
| 1623 |
pcnet_poll_timer(s); |
| 1624 |
#ifdef PCNET_DEBUG_IO
|
| 1625 |
printf("pcnet_ioport_writel addr=0x%08x val=0x%08x\n", addr, val);
|
| 1626 |
#endif
|
| 1627 |
if (BCR_DWIO(s)) {
|
| 1628 |
switch (addr & 0x0f) { |
| 1629 |
case 0x00: /* RDP */ |
| 1630 |
pcnet_csr_writew(s, s->rap, val & 0xffff);
|
| 1631 |
break;
|
| 1632 |
case 0x04: |
| 1633 |
s->rap = val & 0x7f;
|
| 1634 |
break;
|
| 1635 |
case 0x0c: |
| 1636 |
pcnet_bcr_writew(s, s->rap, val & 0xffff);
|
| 1637 |
break;
|
| 1638 |
} |
| 1639 |
} else
|
| 1640 |
if ((addr & 0x0f) == 0) { |
| 1641 |
/* switch device to dword i/o mode */
|
| 1642 |
pcnet_bcr_writew(s, BCR_BSBC, pcnet_bcr_readw(s, BCR_BSBC) | 0x0080);
|
| 1643 |
#ifdef PCNET_DEBUG_IO
|
| 1644 |
printf("device switched into dword i/o mode\n");
|
| 1645 |
#endif
|
| 1646 |
} |
| 1647 |
pcnet_update_irq(s); |
| 1648 |
} |
| 1649 |
|
| 1650 |
uint32_t pcnet_ioport_readl(void *opaque, uint32_t addr)
|
| 1651 |
{
|
| 1652 |
PCNetState *s = opaque; |
| 1653 |
uint32_t val = -1;
|
| 1654 |
pcnet_poll_timer(s); |
| 1655 |
if (BCR_DWIO(s)) {
|
| 1656 |
switch (addr & 0x0f) { |
| 1657 |
case 0x00: /* RDP */ |
| 1658 |
val = pcnet_csr_readw(s, s->rap); |
| 1659 |
break;
|
| 1660 |
case 0x04: |
| 1661 |
val = s->rap; |
| 1662 |
break;
|
| 1663 |
case 0x08: |
| 1664 |
pcnet_s_reset(s); |
| 1665 |
val = 0;
|
| 1666 |
break;
|
| 1667 |
case 0x0c: |
| 1668 |
val = pcnet_bcr_readw(s, s->rap); |
| 1669 |
break;
|
| 1670 |
} |
| 1671 |
} |
| 1672 |
pcnet_update_irq(s); |
| 1673 |
#ifdef PCNET_DEBUG_IO
|
| 1674 |
printf("pcnet_ioport_readl addr=0x%08x val=0x%08x\n", addr, val);
|
| 1675 |
#endif
|
| 1676 |
return val;
|
| 1677 |
} |
| 1678 |
|
| 1679 |
static bool is_version_2(void *opaque, int version_id) |
| 1680 |
{
|
| 1681 |
return version_id == 2; |
| 1682 |
} |
| 1683 |
|
| 1684 |
const VMStateDescription vmstate_pcnet = {
|
| 1685 |
.name = "pcnet",
|
| 1686 |
.version_id = 3,
|
| 1687 |
.minimum_version_id = 2,
|
| 1688 |
.minimum_version_id_old = 2,
|
| 1689 |
.fields = (VMStateField []) {
|
| 1690 |
VMSTATE_INT32(rap, PCNetState), |
| 1691 |
VMSTATE_INT32(isr, PCNetState), |
| 1692 |
VMSTATE_INT32(lnkst, PCNetState), |
| 1693 |
VMSTATE_UINT32(rdra, PCNetState), |
| 1694 |
VMSTATE_UINT32(tdra, PCNetState), |
| 1695 |
VMSTATE_BUFFER(prom, PCNetState), |
| 1696 |
VMSTATE_UINT16_ARRAY(csr, PCNetState, 128),
|
| 1697 |
VMSTATE_UINT16_ARRAY(bcr, PCNetState, 32),
|
| 1698 |
VMSTATE_UINT64(timer, PCNetState), |
| 1699 |
VMSTATE_INT32(xmit_pos, PCNetState), |
| 1700 |
VMSTATE_BUFFER(buffer, PCNetState), |
| 1701 |
VMSTATE_UNUSED_TEST(is_version_2, 4),
|
| 1702 |
VMSTATE_INT32(tx_busy, PCNetState), |
| 1703 |
VMSTATE_TIMER(poll_timer, PCNetState), |
| 1704 |
VMSTATE_END_OF_LIST() |
| 1705 |
} |
| 1706 |
}; |
| 1707 |
|
| 1708 |
void pcnet_common_cleanup(PCNetState *d)
|
| 1709 |
{
|
| 1710 |
d->nic = NULL;
|
| 1711 |
} |
| 1712 |
|
| 1713 |
int pcnet_common_init(DeviceState *dev, PCNetState *s, NetClientInfo *info)
|
| 1714 |
{
|
| 1715 |
int i;
|
| 1716 |
uint16_t checksum; |
| 1717 |
|
| 1718 |
s->poll_timer = qemu_new_timer_ns(vm_clock, pcnet_poll_timer, s); |
| 1719 |
|
| 1720 |
qemu_macaddr_default_if_unset(&s->conf.macaddr); |
| 1721 |
s->nic = qemu_new_nic(info, &s->conf, object_get_typename(OBJECT(dev)), dev->id, s); |
| 1722 |
qemu_format_nic_info_str(&s->nic->nc, s->conf.macaddr.a); |
| 1723 |
|
| 1724 |
add_boot_device_path(s->conf.bootindex, dev, "/ethernet-phy@0");
|
| 1725 |
|
| 1726 |
/* Initialize the PROM */
|
| 1727 |
|
| 1728 |
/*
|
| 1729 |
Datasheet: http://pdfdata.datasheetsite.com/web/24528/AM79C970A.pdf
|
| 1730 |
page 95
|
| 1731 |
*/
|
| 1732 |
memcpy(s->prom, s->conf.macaddr.a, 6);
|
| 1733 |
/* Reserved Location: must be 00h */
|
| 1734 |
s->prom[6] = s->prom[7] = 0x00; |
| 1735 |
/* Reserved Location: must be 00h */
|
| 1736 |
s->prom[8] = 0x00; |
| 1737 |
/* Hardware ID: must be 11h if compatibility to AMD drivers is desired */
|
| 1738 |
s->prom[9] = 0x11; |
| 1739 |
/* User programmable space, init with 0 */
|
| 1740 |
s->prom[10] = s->prom[11] = 0x00; |
| 1741 |
/* LSByte of two-byte checksum, which is the sum of bytes 00h-0Bh
|
| 1742 |
and bytes 0Eh and 0Fh, must therefore be initialized with 0! */
|
| 1743 |
s->prom[12] = s->prom[13] = 0x00; |
| 1744 |
/* Must be ASCII W (57h) if compatibility to AMD
|
| 1745 |
driver software is desired */
|
| 1746 |
s->prom[14] = s->prom[15] = 0x57; |
| 1747 |
|
| 1748 |
for (i = 0, checksum = 0; i < 16; i++) { |
| 1749 |
checksum += s->prom[i]; |
| 1750 |
} |
| 1751 |
*(uint16_t *)&s->prom[12] = cpu_to_le16(checksum);
|
| 1752 |
|
| 1753 |
s->lnkst = 0x40; /* initial link state: up */ |
| 1754 |
|
| 1755 |
return 0; |
| 1756 |
} |