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Diffstat (limited to 'qemu/hw/net/pcnet.c')
-rw-r--r--qemu/hw/net/pcnet.c1761
1 files changed, 0 insertions, 1761 deletions
diff --git a/qemu/hw/net/pcnet.c b/qemu/hw/net/pcnet.c
deleted file mode 100644
index 198a01f92..000000000
--- a/qemu/hw/net/pcnet.c
+++ /dev/null
@@ -1,1761 +0,0 @@
-/*
- * QEMU AMD PC-Net II (Am79C970A) emulation
- *
- * Copyright (c) 2004 Antony T Curtis
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-/* This software was written to be compatible with the specification:
- * AMD Am79C970A PCnet-PCI II Ethernet Controller Data-Sheet
- * AMD Publication# 19436 Rev:E Amendment/0 Issue Date: June 2000
- */
-
-/*
- * On Sparc32, this is the Lance (Am7990) part of chip STP2000 (Master I/O), also
- * produced as NCR89C100. See
- * http://www.ibiblio.org/pub/historic-linux/early-ports/Sparc/NCR/NCR89C100.txt
- * and
- * http://www.ibiblio.org/pub/historic-linux/early-ports/Sparc/NCR/NCR92C990.txt
- */
-
-#include "qemu/osdep.h"
-#include "hw/qdev.h"
-#include "net/net.h"
-#include "qemu/timer.h"
-#include "qemu/sockets.h"
-#include "sysemu/sysemu.h"
-#include "trace.h"
-
-#include "pcnet.h"
-
-//#define PCNET_DEBUG
-//#define PCNET_DEBUG_IO
-//#define PCNET_DEBUG_BCR
-//#define PCNET_DEBUG_CSR
-//#define PCNET_DEBUG_RMD
-//#define PCNET_DEBUG_TMD
-//#define PCNET_DEBUG_MATCH
-
-
-struct qemu_ether_header {
- uint8_t ether_dhost[6];
- uint8_t ether_shost[6];
- uint16_t ether_type;
-};
-
-#define CSR_INIT(S) !!(((S)->csr[0])&0x0001)
-#define CSR_STRT(S) !!(((S)->csr[0])&0x0002)
-#define CSR_STOP(S) !!(((S)->csr[0])&0x0004)
-#define CSR_TDMD(S) !!(((S)->csr[0])&0x0008)
-#define CSR_TXON(S) !!(((S)->csr[0])&0x0010)
-#define CSR_RXON(S) !!(((S)->csr[0])&0x0020)
-#define CSR_INEA(S) !!(((S)->csr[0])&0x0040)
-#define CSR_BSWP(S) !!(((S)->csr[3])&0x0004)
-#define CSR_LAPPEN(S) !!(((S)->csr[3])&0x0020)
-#define CSR_DXSUFLO(S) !!(((S)->csr[3])&0x0040)
-#define CSR_ASTRP_RCV(S) !!(((S)->csr[4])&0x0800)
-#define CSR_DPOLL(S) !!(((S)->csr[4])&0x1000)
-#define CSR_SPND(S) !!(((S)->csr[5])&0x0001)
-#define CSR_LTINTEN(S) !!(((S)->csr[5])&0x4000)
-#define CSR_TOKINTD(S) !!(((S)->csr[5])&0x8000)
-#define CSR_DRX(S) !!(((S)->csr[15])&0x0001)
-#define CSR_DTX(S) !!(((S)->csr[15])&0x0002)
-#define CSR_LOOP(S) !!(((S)->csr[15])&0x0004)
-#define CSR_DXMTFCS(S) !!(((S)->csr[15])&0x0008)
-#define CSR_INTL(S) !!(((S)->csr[15])&0x0040)
-#define CSR_DRCVPA(S) !!(((S)->csr[15])&0x2000)
-#define CSR_DRCVBC(S) !!(((S)->csr[15])&0x4000)
-#define CSR_PROM(S) !!(((S)->csr[15])&0x8000)
-
-#define CSR_CRBC(S) ((S)->csr[40])
-#define CSR_CRST(S) ((S)->csr[41])
-#define CSR_CXBC(S) ((S)->csr[42])
-#define CSR_CXST(S) ((S)->csr[43])
-#define CSR_NRBC(S) ((S)->csr[44])
-#define CSR_NRST(S) ((S)->csr[45])
-#define CSR_POLL(S) ((S)->csr[46])
-#define CSR_PINT(S) ((S)->csr[47])
-#define CSR_RCVRC(S) ((S)->csr[72])
-#define CSR_XMTRC(S) ((S)->csr[74])
-#define CSR_RCVRL(S) ((S)->csr[76])
-#define CSR_XMTRL(S) ((S)->csr[78])
-#define CSR_MISSC(S) ((S)->csr[112])
-
-#define CSR_IADR(S) ((S)->csr[ 1] | ((uint32_t)(S)->csr[ 2] << 16))
-#define CSR_CRBA(S) ((S)->csr[18] | ((uint32_t)(S)->csr[19] << 16))
-#define CSR_CXBA(S) ((S)->csr[20] | ((uint32_t)(S)->csr[21] << 16))
-#define CSR_NRBA(S) ((S)->csr[22] | ((uint32_t)(S)->csr[23] << 16))
-#define CSR_BADR(S) ((S)->csr[24] | ((uint32_t)(S)->csr[25] << 16))
-#define CSR_NRDA(S) ((S)->csr[26] | ((uint32_t)(S)->csr[27] << 16))
-#define CSR_CRDA(S) ((S)->csr[28] | ((uint32_t)(S)->csr[29] << 16))
-#define CSR_BADX(S) ((S)->csr[30] | ((uint32_t)(S)->csr[31] << 16))
-#define CSR_NXDA(S) ((S)->csr[32] | ((uint32_t)(S)->csr[33] << 16))
-#define CSR_CXDA(S) ((S)->csr[34] | ((uint32_t)(S)->csr[35] << 16))
-#define CSR_NNRD(S) ((S)->csr[36] | ((uint32_t)(S)->csr[37] << 16))
-#define CSR_NNXD(S) ((S)->csr[38] | ((uint32_t)(S)->csr[39] << 16))
-#define CSR_PXDA(S) ((S)->csr[60] | ((uint32_t)(S)->csr[61] << 16))
-#define CSR_NXBA(S) ((S)->csr[64] | ((uint32_t)(S)->csr[65] << 16))
-
-#define PHYSADDR(S,A) \
- (BCR_SSIZE32(S) ? (A) : (A) | ((0xff00 & (uint32_t)(S)->csr[2])<<16))
-
-struct pcnet_initblk16 {
- uint16_t mode;
- uint16_t padr[3];
- uint16_t ladrf[4];
- uint32_t rdra;
- uint32_t tdra;
-};
-
-struct pcnet_initblk32 {
- uint16_t mode;
- uint8_t rlen;
- uint8_t tlen;
- uint16_t padr[3];
- uint16_t _res;
- uint16_t ladrf[4];
- uint32_t rdra;
- uint32_t tdra;
-};
-
-struct pcnet_TMD {
- uint32_t tbadr;
- int16_t length;
- int16_t status;
- uint32_t misc;
- uint32_t res;
-};
-
-#define TMDL_BCNT_MASK 0x0fff
-#define TMDL_BCNT_SH 0
-#define TMDL_ONES_MASK 0xf000
-#define TMDL_ONES_SH 12
-
-#define TMDS_BPE_MASK 0x0080
-#define TMDS_BPE_SH 7
-#define TMDS_ENP_MASK 0x0100
-#define TMDS_ENP_SH 8
-#define TMDS_STP_MASK 0x0200
-#define TMDS_STP_SH 9
-#define TMDS_DEF_MASK 0x0400
-#define TMDS_DEF_SH 10
-#define TMDS_ONE_MASK 0x0800
-#define TMDS_ONE_SH 11
-#define TMDS_LTINT_MASK 0x1000
-#define TMDS_LTINT_SH 12
-#define TMDS_NOFCS_MASK 0x2000
-#define TMDS_NOFCS_SH 13
-#define TMDS_ADDFCS_MASK TMDS_NOFCS_MASK
-#define TMDS_ADDFCS_SH TMDS_NOFCS_SH
-#define TMDS_ERR_MASK 0x4000
-#define TMDS_ERR_SH 14
-#define TMDS_OWN_MASK 0x8000
-#define TMDS_OWN_SH 15
-
-#define TMDM_TRC_MASK 0x0000000f
-#define TMDM_TRC_SH 0
-#define TMDM_TDR_MASK 0x03ff0000
-#define TMDM_TDR_SH 16
-#define TMDM_RTRY_MASK 0x04000000
-#define TMDM_RTRY_SH 26
-#define TMDM_LCAR_MASK 0x08000000
-#define TMDM_LCAR_SH 27
-#define TMDM_LCOL_MASK 0x10000000
-#define TMDM_LCOL_SH 28
-#define TMDM_EXDEF_MASK 0x20000000
-#define TMDM_EXDEF_SH 29
-#define TMDM_UFLO_MASK 0x40000000
-#define TMDM_UFLO_SH 30
-#define TMDM_BUFF_MASK 0x80000000
-#define TMDM_BUFF_SH 31
-
-struct pcnet_RMD {
- uint32_t rbadr;
- int16_t buf_length;
- int16_t status;
- uint32_t msg_length;
- uint32_t res;
-};
-
-#define RMDL_BCNT_MASK 0x0fff
-#define RMDL_BCNT_SH 0
-#define RMDL_ONES_MASK 0xf000
-#define RMDL_ONES_SH 12
-
-#define RMDS_BAM_MASK 0x0010
-#define RMDS_BAM_SH 4
-#define RMDS_LFAM_MASK 0x0020
-#define RMDS_LFAM_SH 5
-#define RMDS_PAM_MASK 0x0040
-#define RMDS_PAM_SH 6
-#define RMDS_BPE_MASK 0x0080
-#define RMDS_BPE_SH 7
-#define RMDS_ENP_MASK 0x0100
-#define RMDS_ENP_SH 8
-#define RMDS_STP_MASK 0x0200
-#define RMDS_STP_SH 9
-#define RMDS_BUFF_MASK 0x0400
-#define RMDS_BUFF_SH 10
-#define RMDS_CRC_MASK 0x0800
-#define RMDS_CRC_SH 11
-#define RMDS_OFLO_MASK 0x1000
-#define RMDS_OFLO_SH 12
-#define RMDS_FRAM_MASK 0x2000
-#define RMDS_FRAM_SH 13
-#define RMDS_ERR_MASK 0x4000
-#define RMDS_ERR_SH 14
-#define RMDS_OWN_MASK 0x8000
-#define RMDS_OWN_SH 15
-
-#define RMDM_MCNT_MASK 0x00000fff
-#define RMDM_MCNT_SH 0
-#define RMDM_ZEROS_MASK 0x0000f000
-#define RMDM_ZEROS_SH 12
-#define RMDM_RPC_MASK 0x00ff0000
-#define RMDM_RPC_SH 16
-#define RMDM_RCC_MASK 0xff000000
-#define RMDM_RCC_SH 24
-
-#define SET_FIELD(regp, name, field, value) \
- (*(regp) = (*(regp) & ~(name ## _ ## field ## _MASK)) \
- | ((value) << name ## _ ## field ## _SH))
-
-#define GET_FIELD(reg, name, field) \
- (((reg) & name ## _ ## field ## _MASK) >> name ## _ ## field ## _SH)
-
-#define PRINT_TMD(T) printf( \
- "TMD0 : TBADR=0x%08x\n" \
- "TMD1 : OWN=%d, ERR=%d, FCS=%d, LTI=%d, " \
- "ONE=%d, DEF=%d, STP=%d, ENP=%d,\n" \
- " BPE=%d, BCNT=%d\n" \
- "TMD2 : BUF=%d, UFL=%d, EXD=%d, LCO=%d, " \
- "LCA=%d, RTR=%d,\n" \
- " TDR=%d, TRC=%d\n", \
- (T)->tbadr, \
- GET_FIELD((T)->status, TMDS, OWN), \
- GET_FIELD((T)->status, TMDS, ERR), \
- GET_FIELD((T)->status, TMDS, NOFCS), \
- GET_FIELD((T)->status, TMDS, LTINT), \
- GET_FIELD((T)->status, TMDS, ONE), \
- GET_FIELD((T)->status, TMDS, DEF), \
- GET_FIELD((T)->status, TMDS, STP), \
- GET_FIELD((T)->status, TMDS, ENP), \
- GET_FIELD((T)->status, TMDS, BPE), \
- 4096-GET_FIELD((T)->length, TMDL, BCNT), \
- GET_FIELD((T)->misc, TMDM, BUFF), \
- GET_FIELD((T)->misc, TMDM, UFLO), \
- GET_FIELD((T)->misc, TMDM, EXDEF), \
- GET_FIELD((T)->misc, TMDM, LCOL), \
- GET_FIELD((T)->misc, TMDM, LCAR), \
- GET_FIELD((T)->misc, TMDM, RTRY), \
- GET_FIELD((T)->misc, TMDM, TDR), \
- GET_FIELD((T)->misc, TMDM, TRC))
-
-#define PRINT_RMD(R) printf( \
- "RMD0 : RBADR=0x%08x\n" \
- "RMD1 : OWN=%d, ERR=%d, FRAM=%d, OFLO=%d, " \
- "CRC=%d, BUFF=%d, STP=%d, ENP=%d,\n " \
- "BPE=%d, PAM=%d, LAFM=%d, BAM=%d, ONES=%d, BCNT=%d\n" \
- "RMD2 : RCC=%d, RPC=%d, MCNT=%d, ZEROS=%d\n", \
- (R)->rbadr, \
- GET_FIELD((R)->status, RMDS, OWN), \
- GET_FIELD((R)->status, RMDS, ERR), \
- GET_FIELD((R)->status, RMDS, FRAM), \
- GET_FIELD((R)->status, RMDS, OFLO), \
- GET_FIELD((R)->status, RMDS, CRC), \
- GET_FIELD((R)->status, RMDS, BUFF), \
- GET_FIELD((R)->status, RMDS, STP), \
- GET_FIELD((R)->status, RMDS, ENP), \
- GET_FIELD((R)->status, RMDS, BPE), \
- GET_FIELD((R)->status, RMDS, PAM), \
- GET_FIELD((R)->status, RMDS, LFAM), \
- GET_FIELD((R)->status, RMDS, BAM), \
- GET_FIELD((R)->buf_length, RMDL, ONES), \
- 4096-GET_FIELD((R)->buf_length, RMDL, BCNT), \
- GET_FIELD((R)->msg_length, RMDM, RCC), \
- GET_FIELD((R)->msg_length, RMDM, RPC), \
- GET_FIELD((R)->msg_length, RMDM, MCNT), \
- GET_FIELD((R)->msg_length, RMDM, ZEROS))
-
-static inline void pcnet_tmd_load(PCNetState *s, struct pcnet_TMD *tmd,
- hwaddr addr)
-{
- if (!BCR_SSIZE32(s)) {
- struct {
- uint32_t tbadr;
- int16_t length;
- int16_t status;
- } xda;
- s->phys_mem_read(s->dma_opaque, addr, (void *)&xda, sizeof(xda), 0);
- tmd->tbadr = le32_to_cpu(xda.tbadr) & 0xffffff;
- tmd->length = le16_to_cpu(xda.length);
- tmd->status = (le32_to_cpu(xda.tbadr) >> 16) & 0xff00;
- tmd->misc = le16_to_cpu(xda.status) << 16;
- tmd->res = 0;
- } else {
- s->phys_mem_read(s->dma_opaque, addr, (void *)tmd, sizeof(*tmd), 0);
- le32_to_cpus(&tmd->tbadr);
- le16_to_cpus((uint16_t *)&tmd->length);
- le16_to_cpus((uint16_t *)&tmd->status);
- le32_to_cpus(&tmd->misc);
- le32_to_cpus(&tmd->res);
- if (BCR_SWSTYLE(s) == 3) {
- uint32_t tmp = tmd->tbadr;
- tmd->tbadr = tmd->misc;
- tmd->misc = tmp;
- }
- }
-}
-
-static inline void pcnet_tmd_store(PCNetState *s, const struct pcnet_TMD *tmd,
- hwaddr addr)
-{
- if (!BCR_SSIZE32(s)) {
- struct {
- uint32_t tbadr;
- int16_t length;
- int16_t status;
- } xda;
- xda.tbadr = cpu_to_le32((tmd->tbadr & 0xffffff) |
- ((tmd->status & 0xff00) << 16));
- xda.length = cpu_to_le16(tmd->length);
- xda.status = cpu_to_le16(tmd->misc >> 16);
- s->phys_mem_write(s->dma_opaque, addr, (void *)&xda, sizeof(xda), 0);
- } else {
- struct {
- uint32_t tbadr;
- int16_t length;
- int16_t status;
- uint32_t misc;
- uint32_t res;
- } xda;
- xda.tbadr = cpu_to_le32(tmd->tbadr);
- xda.length = cpu_to_le16(tmd->length);
- xda.status = cpu_to_le16(tmd->status);
- xda.misc = cpu_to_le32(tmd->misc);
- xda.res = cpu_to_le32(tmd->res);
- if (BCR_SWSTYLE(s) == 3) {
- uint32_t tmp = xda.tbadr;
- xda.tbadr = xda.misc;
- xda.misc = tmp;
- }
- s->phys_mem_write(s->dma_opaque, addr, (void *)&xda, sizeof(xda), 0);
- }
-}
-
-static inline void pcnet_rmd_load(PCNetState *s, struct pcnet_RMD *rmd,
- hwaddr addr)
-{
- if (!BCR_SSIZE32(s)) {
- struct {
- uint32_t rbadr;
- int16_t buf_length;
- int16_t msg_length;
- } rda;
- s->phys_mem_read(s->dma_opaque, addr, (void *)&rda, sizeof(rda), 0);
- rmd->rbadr = le32_to_cpu(rda.rbadr) & 0xffffff;
- rmd->buf_length = le16_to_cpu(rda.buf_length);
- rmd->status = (le32_to_cpu(rda.rbadr) >> 16) & 0xff00;
- rmd->msg_length = le16_to_cpu(rda.msg_length);
- rmd->res = 0;
- } else {
- s->phys_mem_read(s->dma_opaque, addr, (void *)rmd, sizeof(*rmd), 0);
- le32_to_cpus(&rmd->rbadr);
- le16_to_cpus((uint16_t *)&rmd->buf_length);
- le16_to_cpus((uint16_t *)&rmd->status);
- le32_to_cpus(&rmd->msg_length);
- le32_to_cpus(&rmd->res);
- if (BCR_SWSTYLE(s) == 3) {
- uint32_t tmp = rmd->rbadr;
- rmd->rbadr = rmd->msg_length;
- rmd->msg_length = tmp;
- }
- }
-}
-
-static inline void pcnet_rmd_store(PCNetState *s, struct pcnet_RMD *rmd,
- hwaddr addr)
-{
- if (!BCR_SSIZE32(s)) {
- struct {
- uint32_t rbadr;
- int16_t buf_length;
- int16_t msg_length;
- } rda;
- rda.rbadr = cpu_to_le32((rmd->rbadr & 0xffffff) |
- ((rmd->status & 0xff00) << 16));
- rda.buf_length = cpu_to_le16(rmd->buf_length);
- rda.msg_length = cpu_to_le16(rmd->msg_length);
- s->phys_mem_write(s->dma_opaque, addr, (void *)&rda, sizeof(rda), 0);
- } else {
- struct {
- uint32_t rbadr;
- int16_t buf_length;
- int16_t status;
- uint32_t msg_length;
- uint32_t res;
- } rda;
- rda.rbadr = cpu_to_le32(rmd->rbadr);
- rda.buf_length = cpu_to_le16(rmd->buf_length);
- rda.status = cpu_to_le16(rmd->status);
- rda.msg_length = cpu_to_le32(rmd->msg_length);
- rda.res = cpu_to_le32(rmd->res);
- if (BCR_SWSTYLE(s) == 3) {
- uint32_t tmp = rda.rbadr;
- rda.rbadr = rda.msg_length;
- rda.msg_length = tmp;
- }
- s->phys_mem_write(s->dma_opaque, addr, (void *)&rda, sizeof(rda), 0);
- }
-}
-
-
-#define TMDLOAD(TMD,ADDR) pcnet_tmd_load(s,TMD,ADDR)
-
-#define TMDSTORE(TMD,ADDR) pcnet_tmd_store(s,TMD,ADDR)
-
-#define RMDLOAD(RMD,ADDR) pcnet_rmd_load(s,RMD,ADDR)
-
-#define RMDSTORE(RMD,ADDR) pcnet_rmd_store(s,RMD,ADDR)
-
-#if 1
-
-#define CHECK_RMD(ADDR,RES) do { \
- struct pcnet_RMD rmd; \
- RMDLOAD(&rmd,(ADDR)); \
- (RES) |= (GET_FIELD(rmd.buf_length, RMDL, ONES) != 15) \
- || (GET_FIELD(rmd.msg_length, RMDM, ZEROS) != 0); \
-} while (0)
-
-#define CHECK_TMD(ADDR,RES) do { \
- struct pcnet_TMD tmd; \
- TMDLOAD(&tmd,(ADDR)); \
- (RES) |= (GET_FIELD(tmd.length, TMDL, ONES) != 15); \
-} while (0)
-
-#else
-
-#define CHECK_RMD(ADDR,RES) do { \
- switch (BCR_SWSTYLE(s)) { \
- case 0x00: \
- do { \
- uint16_t rda[4]; \
- s->phys_mem_read(s->dma_opaque, (ADDR), \
- (void *)&rda[0], sizeof(rda), 0); \
- (RES) |= (rda[2] & 0xf000)!=0xf000; \
- (RES) |= (rda[3] & 0xf000)!=0x0000; \
- } while (0); \
- break; \
- case 0x01: \
- case 0x02: \
- do { \
- uint32_t rda[4]; \
- s->phys_mem_read(s->dma_opaque, (ADDR), \
- (void *)&rda[0], sizeof(rda), 0); \
- (RES) |= (rda[1] & 0x0000f000L)!=0x0000f000L; \
- (RES) |= (rda[2] & 0x0000f000L)!=0x00000000L; \
- } while (0); \
- break; \
- case 0x03: \
- do { \
- uint32_t rda[4]; \
- s->phys_mem_read(s->dma_opaque, (ADDR), \
- (void *)&rda[0], sizeof(rda), 0); \
- (RES) |= (rda[0] & 0x0000f000L)!=0x00000000L; \
- (RES) |= (rda[1] & 0x0000f000L)!=0x0000f000L; \
- } while (0); \
- break; \
- } \
-} while (0)
-
-#define CHECK_TMD(ADDR,RES) do { \
- switch (BCR_SWSTYLE(s)) { \
- case 0x00: \
- do { \
- uint16_t xda[4]; \
- s->phys_mem_read(s->dma_opaque, (ADDR), \
- (void *)&xda[0], sizeof(xda), 0); \
- (RES) |= (xda[2] & 0xf000)!=0xf000; \
- } while (0); \
- break; \
- case 0x01: \
- case 0x02: \
- case 0x03: \
- do { \
- uint32_t xda[4]; \
- s->phys_mem_read(s->dma_opaque, (ADDR), \
- (void *)&xda[0], sizeof(xda), 0); \
- (RES) |= (xda[1] & 0x0000f000L)!=0x0000f000L; \
- } while (0); \
- break; \
- } \
-} while (0)
-
-#endif
-
-#define PRINT_PKTHDR(BUF) do { \
- struct qemu_ether_header *hdr = (void *)(BUF); \
- printf("packet dhost=%02x:%02x:%02x:%02x:%02x:%02x, " \
- "shost=%02x:%02x:%02x:%02x:%02x:%02x, " \
- "type=0x%04x\n", \
- hdr->ether_dhost[0],hdr->ether_dhost[1],hdr->ether_dhost[2], \
- hdr->ether_dhost[3],hdr->ether_dhost[4],hdr->ether_dhost[5], \
- hdr->ether_shost[0],hdr->ether_shost[1],hdr->ether_shost[2], \
- hdr->ether_shost[3],hdr->ether_shost[4],hdr->ether_shost[5], \
- be16_to_cpu(hdr->ether_type)); \
-} while (0)
-
-#define MULTICAST_FILTER_LEN 8
-
-static inline uint32_t lnc_mchash(const uint8_t *ether_addr)
-{
-#define LNC_POLYNOMIAL 0xEDB88320UL
- uint32_t crc = 0xFFFFFFFF;
- int idx, bit;
- uint8_t data;
-
- for (idx = 0; idx < 6; idx++) {
- for (data = *ether_addr++, bit = 0; bit < MULTICAST_FILTER_LEN; bit++) {
- crc = (crc >> 1) ^ (((crc ^ data) & 1) ? LNC_POLYNOMIAL : 0);
- data >>= 1;
- }
- }
- return crc;
-#undef LNC_POLYNOMIAL
-}
-
-#define CRC(crc, ch) (crc = (crc >> 8) ^ crctab[(crc ^ (ch)) & 0xff])
-
-/* generated using the AUTODIN II polynomial
- * x^32 + x^26 + x^23 + x^22 + x^16 +
- * x^12 + x^11 + x^10 + x^8 + x^7 + x^5 + x^4 + x^2 + x^1 + 1
- */
-static const uint32_t crctab[256] = {
- 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba,
- 0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3,
- 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,
- 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91,
- 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
- 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
- 0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec,
- 0x14015c4f, 0x63066cd9, 0xfa0f3d63, 0x8d080df5,
- 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172,
- 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
- 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940,
- 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
- 0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116,
- 0x21b4f4b5, 0x56b3c423, 0xcfba9599, 0xb8bda50f,
- 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
- 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d,
- 0x76dc4190, 0x01db7106, 0x98d220bc, 0xefd5102a,
- 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
- 0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818,
- 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
- 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e,
- 0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457,
- 0x65b0d9c6, 0x12b7e950, 0x8bbeb8ea, 0xfcb9887c,
- 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
- 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
- 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb,
- 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0,
- 0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9,
- 0x5005713c, 0x270241aa, 0xbe0b1010, 0xc90c2086,
- 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
- 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4,
- 0x59b33d17, 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad,
- 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a,
- 0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683,
- 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
- 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
- 0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe,
- 0xf762575d, 0x806567cb, 0x196c3671, 0x6e6b06e7,
- 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc,
- 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
- 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252,
- 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
- 0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60,
- 0xdf60efc3, 0xa867df55, 0x316e8eef, 0x4669be79,
- 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
- 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f,
- 0xc5ba3bbe, 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04,
- 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
- 0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a,
- 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
- 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38,
- 0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21,
- 0x86d3d2d4, 0xf1d4e242, 0x68ddb3f8, 0x1fda836e,
- 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
- 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
- 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45,
- 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2,
- 0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db,
- 0xaed16a4a, 0xd9d65adc, 0x40df0b66, 0x37d83bf0,
- 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
- 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6,
- 0xbad03605, 0xcdd70693, 0x54de5729, 0x23d967bf,
- 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,
- 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d,
-};
-
-static inline int padr_match(PCNetState *s, const uint8_t *buf, int size)
-{
- struct qemu_ether_header *hdr = (void *)buf;
- uint8_t padr[6] = {
- s->csr[12] & 0xff, s->csr[12] >> 8,
- s->csr[13] & 0xff, s->csr[13] >> 8,
- s->csr[14] & 0xff, s->csr[14] >> 8
- };
- int result = (!CSR_DRCVPA(s)) && !memcmp(hdr->ether_dhost, padr, 6);
-#ifdef PCNET_DEBUG_MATCH
- printf("packet dhost=%02x:%02x:%02x:%02x:%02x:%02x, "
- "padr=%02x:%02x:%02x:%02x:%02x:%02x\n",
- hdr->ether_dhost[0],hdr->ether_dhost[1],hdr->ether_dhost[2],
- hdr->ether_dhost[3],hdr->ether_dhost[4],hdr->ether_dhost[5],
- padr[0],padr[1],padr[2],padr[3],padr[4],padr[5]);
- printf("padr_match result=%d\n", result);
-#endif
- return result;
-}
-
-static inline int padr_bcast(PCNetState *s, const uint8_t *buf, int size)
-{
- static const uint8_t BCAST[6] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
- struct qemu_ether_header *hdr = (void *)buf;
- int result = !CSR_DRCVBC(s) && !memcmp(hdr->ether_dhost, BCAST, 6);
-#ifdef PCNET_DEBUG_MATCH
- printf("padr_bcast result=%d\n", result);
-#endif
- return result;
-}
-
-static inline int ladr_match(PCNetState *s, const uint8_t *buf, int size)
-{
- struct qemu_ether_header *hdr = (void *)buf;
- if ((*(hdr->ether_dhost)&0x01) &&
- ((uint64_t *)&s->csr[8])[0] != 0LL) {
- uint8_t ladr[8] = {
- s->csr[8] & 0xff, s->csr[8] >> 8,
- s->csr[9] & 0xff, s->csr[9] >> 8,
- s->csr[10] & 0xff, s->csr[10] >> 8,
- s->csr[11] & 0xff, s->csr[11] >> 8
- };
- int index = lnc_mchash(hdr->ether_dhost) >> 26;
- return !!(ladr[index >> 3] & (1 << (index & 7)));
- }
- return 0;
-}
-
-static inline hwaddr pcnet_rdra_addr(PCNetState *s, int idx)
-{
- while (idx < 1) idx += CSR_RCVRL(s);
- return s->rdra + ((CSR_RCVRL(s) - idx) * (BCR_SWSTYLE(s) ? 16 : 8));
-}
-
-static inline int64_t pcnet_get_next_poll_time(PCNetState *s, int64_t current_time)
-{
- int64_t next_time = current_time +
- (65536 - (CSR_SPND(s) ? 0 : CSR_POLL(s))) * 30;
- if (next_time <= current_time)
- next_time = current_time + 1;
- return next_time;
-}
-
-static void pcnet_poll(PCNetState *s);
-static void pcnet_poll_timer(void *opaque);
-
-static uint32_t pcnet_csr_readw(PCNetState *s, uint32_t rap);
-static void pcnet_csr_writew(PCNetState *s, uint32_t rap, uint32_t new_value);
-static void pcnet_bcr_writew(PCNetState *s, uint32_t rap, uint32_t val);
-
-static void pcnet_s_reset(PCNetState *s)
-{
- trace_pcnet_s_reset(s);
-
- s->rdra = 0;
- s->tdra = 0;
- s->rap = 0;
-
- s->bcr[BCR_BSBC] &= ~0x0080;
-
- s->csr[0] = 0x0004;
- s->csr[3] = 0x0000;
- s->csr[4] = 0x0115;
- s->csr[5] = 0x0000;
- s->csr[6] = 0x0000;
- s->csr[8] = 0;
- s->csr[9] = 0;
- s->csr[10] = 0;
- s->csr[11] = 0;
- s->csr[12] = le16_to_cpu(((uint16_t *)&s->prom[0])[0]);
- s->csr[13] = le16_to_cpu(((uint16_t *)&s->prom[0])[1]);
- s->csr[14] = le16_to_cpu(((uint16_t *)&s->prom[0])[2]);
- s->csr[15] &= 0x21c4;
- s->csr[72] = 1;
- s->csr[74] = 1;
- s->csr[76] = 1;
- s->csr[78] = 1;
- s->csr[80] = 0x1410;
- s->csr[88] = 0x1003;
- s->csr[89] = 0x0262;
- s->csr[94] = 0x0000;
- s->csr[100] = 0x0200;
- s->csr[103] = 0x0105;
- s->csr[112] = 0x0000;
- s->csr[114] = 0x0000;
- s->csr[122] = 0x0000;
- s->csr[124] = 0x0000;
-
- s->tx_busy = 0;
-}
-
-static void pcnet_update_irq(PCNetState *s)
-{
- int isr = 0;
- s->csr[0] &= ~0x0080;
-
-#if 1
- if (((s->csr[0] & ~s->csr[3]) & 0x5f00) ||
- (((s->csr[4]>>1) & ~s->csr[4]) & 0x0115) ||
- (((s->csr[5]>>1) & s->csr[5]) & 0x0048))
-#else
- if ((!(s->csr[3] & 0x4000) && !!(s->csr[0] & 0x4000)) /* BABL */ ||
- (!(s->csr[3] & 0x1000) && !!(s->csr[0] & 0x1000)) /* MISS */ ||
- (!(s->csr[3] & 0x0100) && !!(s->csr[0] & 0x0100)) /* IDON */ ||
- (!(s->csr[3] & 0x0200) && !!(s->csr[0] & 0x0200)) /* TINT */ ||
- (!(s->csr[3] & 0x0400) && !!(s->csr[0] & 0x0400)) /* RINT */ ||
- (!(s->csr[3] & 0x0800) && !!(s->csr[0] & 0x0800)) /* MERR */ ||
- (!(s->csr[4] & 0x0001) && !!(s->csr[4] & 0x0002)) /* JAB */ ||
- (!(s->csr[4] & 0x0004) && !!(s->csr[4] & 0x0008)) /* TXSTRT */ ||
- (!(s->csr[4] & 0x0010) && !!(s->csr[4] & 0x0020)) /* RCVO */ ||
- (!(s->csr[4] & 0x0100) && !!(s->csr[4] & 0x0200)) /* MFCO */ ||
- (!!(s->csr[5] & 0x0040) && !!(s->csr[5] & 0x0080)) /* EXDINT */ ||
- (!!(s->csr[5] & 0x0008) && !!(s->csr[5] & 0x0010)) /* MPINT */)
-#endif
- {
-
- isr = CSR_INEA(s);
- s->csr[0] |= 0x0080;
- }
-
- if (!!(s->csr[4] & 0x0080) && CSR_INEA(s)) { /* UINT */
- s->csr[4] &= ~0x0080;
- s->csr[4] |= 0x0040;
- s->csr[0] |= 0x0080;
- isr = 1;
- trace_pcnet_user_int(s);
- }
-
-#if 1
- if (((s->csr[5]>>1) & s->csr[5]) & 0x0500)
-#else
- if ((!!(s->csr[5] & 0x0400) && !!(s->csr[5] & 0x0800)) /* SINT */ ||
- (!!(s->csr[5] & 0x0100) && !!(s->csr[5] & 0x0200)) /* SLPINT */ )
-#endif
- {
- isr = 1;
- s->csr[0] |= 0x0080;
- }
-
- if (isr != s->isr) {
- trace_pcnet_isr_change(s, isr, s->isr);
- }
- qemu_set_irq(s->irq, isr);
- s->isr = isr;
-}
-
-static void pcnet_init(PCNetState *s)
-{
- int rlen, tlen;
- uint16_t padr[3], ladrf[4], mode;
- uint32_t rdra, tdra;
-
- trace_pcnet_init(s, PHYSADDR(s, CSR_IADR(s)));
-
- if (BCR_SSIZE32(s)) {
- struct pcnet_initblk32 initblk;
- s->phys_mem_read(s->dma_opaque, PHYSADDR(s,CSR_IADR(s)),
- (uint8_t *)&initblk, sizeof(initblk), 0);
- mode = le16_to_cpu(initblk.mode);
- rlen = initblk.rlen >> 4;
- tlen = initblk.tlen >> 4;
- ladrf[0] = le16_to_cpu(initblk.ladrf[0]);
- ladrf[1] = le16_to_cpu(initblk.ladrf[1]);
- ladrf[2] = le16_to_cpu(initblk.ladrf[2]);
- ladrf[3] = le16_to_cpu(initblk.ladrf[3]);
- padr[0] = le16_to_cpu(initblk.padr[0]);
- padr[1] = le16_to_cpu(initblk.padr[1]);
- padr[2] = le16_to_cpu(initblk.padr[2]);
- rdra = le32_to_cpu(initblk.rdra);
- tdra = le32_to_cpu(initblk.tdra);
- } else {
- struct pcnet_initblk16 initblk;
- s->phys_mem_read(s->dma_opaque, PHYSADDR(s,CSR_IADR(s)),
- (uint8_t *)&initblk, sizeof(initblk), 0);
- mode = le16_to_cpu(initblk.mode);
- ladrf[0] = le16_to_cpu(initblk.ladrf[0]);
- ladrf[1] = le16_to_cpu(initblk.ladrf[1]);
- ladrf[2] = le16_to_cpu(initblk.ladrf[2]);
- ladrf[3] = le16_to_cpu(initblk.ladrf[3]);
- padr[0] = le16_to_cpu(initblk.padr[0]);
- padr[1] = le16_to_cpu(initblk.padr[1]);
- padr[2] = le16_to_cpu(initblk.padr[2]);
- rdra = le32_to_cpu(initblk.rdra);
- tdra = le32_to_cpu(initblk.tdra);
- rlen = rdra >> 29;
- tlen = tdra >> 29;
- rdra &= 0x00ffffff;
- tdra &= 0x00ffffff;
- }
-
- trace_pcnet_rlen_tlen(s, rlen, tlen);
-
- CSR_RCVRL(s) = (rlen < 9) ? (1 << rlen) : 512;
- CSR_XMTRL(s) = (tlen < 9) ? (1 << tlen) : 512;
- s->csr[ 6] = (tlen << 12) | (rlen << 8);
- s->csr[15] = mode;
- s->csr[ 8] = ladrf[0];
- s->csr[ 9] = ladrf[1];
- s->csr[10] = ladrf[2];
- s->csr[11] = ladrf[3];
- s->csr[12] = padr[0];
- s->csr[13] = padr[1];
- s->csr[14] = padr[2];
- s->rdra = PHYSADDR(s, rdra);
- s->tdra = PHYSADDR(s, tdra);
-
- CSR_RCVRC(s) = CSR_RCVRL(s);
- CSR_XMTRC(s) = CSR_XMTRL(s);
-
- trace_pcnet_ss32_rdra_tdra(s, BCR_SSIZE32(s),
- s->rdra, CSR_RCVRL(s), s->tdra, CSR_XMTRL(s));
-
- s->csr[0] |= 0x0101;
- s->csr[0] &= ~0x0004; /* clear STOP bit */
-
- qemu_flush_queued_packets(qemu_get_queue(s->nic));
-}
-
-static void pcnet_start(PCNetState *s)
-{
-#ifdef PCNET_DEBUG
- printf("pcnet_start\n");
-#endif
-
- if (!CSR_DTX(s))
- s->csr[0] |= 0x0010; /* set TXON */
-
- if (!CSR_DRX(s))
- s->csr[0] |= 0x0020; /* set RXON */
-
- s->csr[0] &= ~0x0004; /* clear STOP bit */
- s->csr[0] |= 0x0002;
- pcnet_poll_timer(s);
-
- qemu_flush_queued_packets(qemu_get_queue(s->nic));
-}
-
-static void pcnet_stop(PCNetState *s)
-{
-#ifdef PCNET_DEBUG
- printf("pcnet_stop\n");
-#endif
- s->csr[0] &= ~0xffeb;
- s->csr[0] |= 0x0014;
- s->csr[4] &= ~0x02c2;
- s->csr[5] &= ~0x0011;
- pcnet_poll_timer(s);
-}
-
-static void pcnet_rdte_poll(PCNetState *s)
-{
- s->csr[28] = s->csr[29] = 0;
- if (s->rdra) {
- int bad = 0;
-#if 1
- hwaddr crda = pcnet_rdra_addr(s, CSR_RCVRC(s));
- hwaddr nrda = pcnet_rdra_addr(s, -1 + CSR_RCVRC(s));
- hwaddr nnrd = pcnet_rdra_addr(s, -2 + CSR_RCVRC(s));
-#else
- hwaddr crda = s->rdra +
- (CSR_RCVRL(s) - CSR_RCVRC(s)) *
- (BCR_SWSTYLE(s) ? 16 : 8 );
- int nrdc = CSR_RCVRC(s)<=1 ? CSR_RCVRL(s) : CSR_RCVRC(s)-1;
- hwaddr nrda = s->rdra +
- (CSR_RCVRL(s) - nrdc) *
- (BCR_SWSTYLE(s) ? 16 : 8 );
- int nnrc = nrdc<=1 ? CSR_RCVRL(s) : nrdc-1;
- hwaddr nnrd = s->rdra +
- (CSR_RCVRL(s) - nnrc) *
- (BCR_SWSTYLE(s) ? 16 : 8 );
-#endif
-
- CHECK_RMD(crda, bad);
- if (!bad) {
- CHECK_RMD(nrda, bad);
- if (bad || (nrda == crda)) nrda = 0;
- CHECK_RMD(nnrd, bad);
- if (bad || (nnrd == crda)) nnrd = 0;
-
- s->csr[28] = crda & 0xffff;
- s->csr[29] = crda >> 16;
- s->csr[26] = nrda & 0xffff;
- s->csr[27] = nrda >> 16;
- s->csr[36] = nnrd & 0xffff;
- s->csr[37] = nnrd >> 16;
-#ifdef PCNET_DEBUG
- if (bad) {
- printf("pcnet: BAD RMD RECORDS AFTER 0x" TARGET_FMT_plx "\n",
- crda);
- }
- } else {
- printf("pcnet: BAD RMD RDA=0x" TARGET_FMT_plx "\n",
- crda);
-#endif
- }
- }
-
- if (CSR_CRDA(s)) {
- struct pcnet_RMD rmd;
- RMDLOAD(&rmd, PHYSADDR(s,CSR_CRDA(s)));
- CSR_CRBC(s) = GET_FIELD(rmd.buf_length, RMDL, BCNT);
- CSR_CRST(s) = rmd.status;
-#ifdef PCNET_DEBUG_RMD_X
- printf("CRDA=0x%08x CRST=0x%04x RCVRC=%d RMDL=0x%04x RMDS=0x%04x RMDM=0x%08x\n",
- PHYSADDR(s,CSR_CRDA(s)), CSR_CRST(s), CSR_RCVRC(s),
- rmd.buf_length, rmd.status, rmd.msg_length);
- PRINT_RMD(&rmd);
-#endif
- } else {
- CSR_CRBC(s) = CSR_CRST(s) = 0;
- }
-
- if (CSR_NRDA(s)) {
- struct pcnet_RMD rmd;
- RMDLOAD(&rmd, PHYSADDR(s,CSR_NRDA(s)));
- CSR_NRBC(s) = GET_FIELD(rmd.buf_length, RMDL, BCNT);
- CSR_NRST(s) = rmd.status;
- } else {
- CSR_NRBC(s) = CSR_NRST(s) = 0;
- }
-
-}
-
-static int pcnet_tdte_poll(PCNetState *s)
-{
- s->csr[34] = s->csr[35] = 0;
- if (s->tdra) {
- hwaddr cxda = s->tdra +
- (CSR_XMTRL(s) - CSR_XMTRC(s)) *
- (BCR_SWSTYLE(s) ? 16 : 8);
- int bad = 0;
- CHECK_TMD(cxda, bad);
- if (!bad) {
- if (CSR_CXDA(s) != cxda) {
- s->csr[60] = s->csr[34];
- s->csr[61] = s->csr[35];
- s->csr[62] = CSR_CXBC(s);
- s->csr[63] = CSR_CXST(s);
- }
- s->csr[34] = cxda & 0xffff;
- s->csr[35] = cxda >> 16;
-#ifdef PCNET_DEBUG_X
- printf("pcnet: BAD TMD XDA=0x%08x\n", cxda);
-#endif
- }
- }
-
- if (CSR_CXDA(s)) {
- struct pcnet_TMD tmd;
-
- TMDLOAD(&tmd, PHYSADDR(s,CSR_CXDA(s)));
-
- CSR_CXBC(s) = GET_FIELD(tmd.length, TMDL, BCNT);
- CSR_CXST(s) = tmd.status;
- } else {
- CSR_CXBC(s) = CSR_CXST(s) = 0;
- }
-
- return !!(CSR_CXST(s) & 0x8000);
-}
-
-#define MIN_BUF_SIZE 60
-
-ssize_t pcnet_receive(NetClientState *nc, const uint8_t *buf, size_t size_)
-{
- PCNetState *s = qemu_get_nic_opaque(nc);
- int is_padr = 0, is_bcast = 0, is_ladr = 0;
- uint8_t buf1[60];
- int remaining;
- int crc_err = 0;
- int size = size_;
-
- if (CSR_DRX(s) || CSR_STOP(s) || CSR_SPND(s) || !size ||
- (CSR_LOOP(s) && !s->looptest)) {
- return -1;
- }
-#ifdef PCNET_DEBUG
- printf("pcnet_receive size=%d\n", size);
-#endif
-
- /* if too small buffer, then expand it */
- if (size < MIN_BUF_SIZE) {
- memcpy(buf1, buf, size);
- memset(buf1 + size, 0, MIN_BUF_SIZE - size);
- buf = buf1;
- size = MIN_BUF_SIZE;
- }
-
- if (CSR_PROM(s)
- || (is_padr=padr_match(s, buf, size))
- || (is_bcast=padr_bcast(s, buf, size))
- || (is_ladr=ladr_match(s, buf, size))) {
-
- pcnet_rdte_poll(s);
-
- if (!(CSR_CRST(s) & 0x8000) && s->rdra) {
- struct pcnet_RMD rmd;
- int rcvrc = CSR_RCVRC(s)-1,i;
- hwaddr nrda;
- for (i = CSR_RCVRL(s)-1; i > 0; i--, rcvrc--) {
- if (rcvrc <= 1)
- rcvrc = CSR_RCVRL(s);
- nrda = s->rdra +
- (CSR_RCVRL(s) - rcvrc) *
- (BCR_SWSTYLE(s) ? 16 : 8 );
- RMDLOAD(&rmd, nrda);
- if (GET_FIELD(rmd.status, RMDS, OWN)) {
-#ifdef PCNET_DEBUG_RMD
- printf("pcnet - scan buffer: RCVRC=%d PREV_RCVRC=%d\n",
- rcvrc, CSR_RCVRC(s));
-#endif
- CSR_RCVRC(s) = rcvrc;
- pcnet_rdte_poll(s);
- break;
- }
- }
- }
-
- if (!(CSR_CRST(s) & 0x8000)) {
-#ifdef PCNET_DEBUG_RMD
- printf("pcnet - no buffer: RCVRC=%d\n", CSR_RCVRC(s));
-#endif
- s->csr[0] |= 0x1000; /* Set MISS flag */
- CSR_MISSC(s)++;
- } else {
- uint8_t *src = s->buffer;
- hwaddr crda = CSR_CRDA(s);
- struct pcnet_RMD rmd;
- int pktcount = 0;
-
- if (!s->looptest) {
- if (size > 4092) {
-#ifdef PCNET_DEBUG_RMD
- fprintf(stderr, "pcnet: truncates rx packet.\n");
-#endif
- size = 4092;
- }
- memcpy(src, buf, size);
- /* no need to compute the CRC */
- src[size] = 0;
- src[size + 1] = 0;
- src[size + 2] = 0;
- src[size + 3] = 0;
- size += 4;
- } else if (s->looptest == PCNET_LOOPTEST_CRC ||
- !CSR_DXMTFCS(s) || size < MIN_BUF_SIZE+4) {
- uint32_t fcs = ~0;
- uint8_t *p = src;
-
- while (p != &src[size])
- CRC(fcs, *p++);
- *(uint32_t *)p = htonl(fcs);
- size += 4;
- } else {
- uint32_t fcs = ~0;
- uint8_t *p = src;
-
- while (p != &src[size])
- CRC(fcs, *p++);
- crc_err = (*(uint32_t *)p != htonl(fcs));
- }
-
-#ifdef PCNET_DEBUG_MATCH
- PRINT_PKTHDR(buf);
-#endif
-
- RMDLOAD(&rmd, PHYSADDR(s,crda));
- /*if (!CSR_LAPPEN(s))*/
- SET_FIELD(&rmd.status, RMDS, STP, 1);
-
-#define PCNET_RECV_STORE() do { \
- int count = MIN(4096 - GET_FIELD(rmd.buf_length, RMDL, BCNT),remaining); \
- hwaddr rbadr = PHYSADDR(s, rmd.rbadr); \
- s->phys_mem_write(s->dma_opaque, rbadr, src, count, CSR_BSWP(s)); \
- src += count; remaining -= count; \
- SET_FIELD(&rmd.status, RMDS, OWN, 0); \
- RMDSTORE(&rmd, PHYSADDR(s,crda)); \
- pktcount++; \
-} while (0)
-
- remaining = size;
- PCNET_RECV_STORE();
- if ((remaining > 0) && CSR_NRDA(s)) {
- hwaddr nrda = CSR_NRDA(s);
-#ifdef PCNET_DEBUG_RMD
- PRINT_RMD(&rmd);
-#endif
- RMDLOAD(&rmd, PHYSADDR(s,nrda));
- if (GET_FIELD(rmd.status, RMDS, OWN)) {
- crda = nrda;
- PCNET_RECV_STORE();
-#ifdef PCNET_DEBUG_RMD
- PRINT_RMD(&rmd);
-#endif
- if ((remaining > 0) && (nrda=CSR_NNRD(s))) {
- RMDLOAD(&rmd, PHYSADDR(s,nrda));
- if (GET_FIELD(rmd.status, RMDS, OWN)) {
- crda = nrda;
- PCNET_RECV_STORE();
- }
- }
- }
- }
-
-#undef PCNET_RECV_STORE
-
- RMDLOAD(&rmd, PHYSADDR(s,crda));
- if (remaining == 0) {
- SET_FIELD(&rmd.msg_length, RMDM, MCNT, size);
- SET_FIELD(&rmd.status, RMDS, ENP, 1);
- SET_FIELD(&rmd.status, RMDS, PAM, !CSR_PROM(s) && is_padr);
- SET_FIELD(&rmd.status, RMDS, LFAM, !CSR_PROM(s) && is_ladr);
- SET_FIELD(&rmd.status, RMDS, BAM, !CSR_PROM(s) && is_bcast);
- if (crc_err) {
- SET_FIELD(&rmd.status, RMDS, CRC, 1);
- SET_FIELD(&rmd.status, RMDS, ERR, 1);
- }
- } else {
- SET_FIELD(&rmd.status, RMDS, OFLO, 1);
- SET_FIELD(&rmd.status, RMDS, BUFF, 1);
- SET_FIELD(&rmd.status, RMDS, ERR, 1);
- }
- RMDSTORE(&rmd, PHYSADDR(s,crda));
- s->csr[0] |= 0x0400;
-
-#ifdef PCNET_DEBUG
- printf("RCVRC=%d CRDA=0x%08x BLKS=%d\n",
- CSR_RCVRC(s), PHYSADDR(s,CSR_CRDA(s)), pktcount);
-#endif
-#ifdef PCNET_DEBUG_RMD
- PRINT_RMD(&rmd);
-#endif
-
- while (pktcount--) {
- if (CSR_RCVRC(s) <= 1)
- CSR_RCVRC(s) = CSR_RCVRL(s);
- else
- CSR_RCVRC(s)--;
- }
-
- pcnet_rdte_poll(s);
-
- }
- }
-
- pcnet_poll(s);
- pcnet_update_irq(s);
-
- return size_;
-}
-
-void pcnet_set_link_status(NetClientState *nc)
-{
- PCNetState *d = qemu_get_nic_opaque(nc);
-
- d->lnkst = nc->link_down ? 0 : 0x40;
-}
-
-static void pcnet_transmit(PCNetState *s)
-{
- hwaddr xmit_cxda = 0;
- int count = CSR_XMTRL(s)-1;
- int add_crc = 0;
- int bcnt;
- s->xmit_pos = -1;
-
- if (!CSR_TXON(s)) {
- s->csr[0] &= ~0x0008;
- return;
- }
-
- s->tx_busy = 1;
-
- txagain:
- if (pcnet_tdte_poll(s)) {
- struct pcnet_TMD tmd;
-
- TMDLOAD(&tmd, PHYSADDR(s,CSR_CXDA(s)));
-
-#ifdef PCNET_DEBUG_TMD
- printf(" TMDLOAD 0x%08x\n", PHYSADDR(s,CSR_CXDA(s)));
- PRINT_TMD(&tmd);
-#endif
- if (GET_FIELD(tmd.status, TMDS, STP)) {
- s->xmit_pos = 0;
- xmit_cxda = PHYSADDR(s,CSR_CXDA(s));
- if (BCR_SWSTYLE(s) != 1)
- add_crc = GET_FIELD(tmd.status, TMDS, ADDFCS);
- }
- if (s->lnkst == 0 &&
- (!CSR_LOOP(s) || (!CSR_INTL(s) && !BCR_TMAULOOP(s)))) {
- SET_FIELD(&tmd.misc, TMDM, LCAR, 1);
- SET_FIELD(&tmd.status, TMDS, ERR, 1);
- SET_FIELD(&tmd.status, TMDS, OWN, 0);
- s->csr[0] |= 0xa000; /* ERR | CERR */
- s->xmit_pos = -1;
- goto txdone;
- }
-
- if (s->xmit_pos < 0) {
- goto txdone;
- }
-
- bcnt = 4096 - GET_FIELD(tmd.length, TMDL, BCNT);
-
- /* if multi-tmd packet outsizes s->buffer then skip it silently.
- * Note: this is not what real hw does.
- * Last four bytes of s->buffer are used to store CRC FCS code.
- */
- if (s->xmit_pos + bcnt > sizeof(s->buffer) - 4) {
- s->xmit_pos = -1;
- goto txdone;
- }
-
- s->phys_mem_read(s->dma_opaque, PHYSADDR(s, tmd.tbadr),
- s->buffer + s->xmit_pos, bcnt, CSR_BSWP(s));
- s->xmit_pos += bcnt;
-
- if (!GET_FIELD(tmd.status, TMDS, ENP)) {
- goto txdone;
- }
-
-#ifdef PCNET_DEBUG
- printf("pcnet_transmit size=%d\n", s->xmit_pos);
-#endif
- if (CSR_LOOP(s)) {
- if (BCR_SWSTYLE(s) == 1)
- add_crc = !GET_FIELD(tmd.status, TMDS, NOFCS);
- s->looptest = add_crc ? PCNET_LOOPTEST_CRC : PCNET_LOOPTEST_NOCRC;
- pcnet_receive(qemu_get_queue(s->nic), s->buffer, s->xmit_pos);
- s->looptest = 0;
- } else {
- if (s->nic) {
- qemu_send_packet(qemu_get_queue(s->nic), s->buffer,
- s->xmit_pos);
- }
- }
-
- s->csr[0] &= ~0x0008; /* clear TDMD */
- s->csr[4] |= 0x0004; /* set TXSTRT */
- s->xmit_pos = -1;
-
- txdone:
- SET_FIELD(&tmd.status, TMDS, OWN, 0);
- TMDSTORE(&tmd, PHYSADDR(s,CSR_CXDA(s)));
- if (!CSR_TOKINTD(s) || (CSR_LTINTEN(s) && GET_FIELD(tmd.status, TMDS, LTINT)))
- s->csr[0] |= 0x0200; /* set TINT */
-
- if (CSR_XMTRC(s)<=1)
- CSR_XMTRC(s) = CSR_XMTRL(s);
- else
- CSR_XMTRC(s)--;
- if (count--)
- goto txagain;
-
- } else
- if (s->xmit_pos >= 0) {
- struct pcnet_TMD tmd;
- TMDLOAD(&tmd, xmit_cxda);
- SET_FIELD(&tmd.misc, TMDM, BUFF, 1);
- SET_FIELD(&tmd.misc, TMDM, UFLO, 1);
- SET_FIELD(&tmd.status, TMDS, ERR, 1);
- SET_FIELD(&tmd.status, TMDS, OWN, 0);
- TMDSTORE(&tmd, xmit_cxda);
- s->csr[0] |= 0x0200; /* set TINT */
- if (!CSR_DXSUFLO(s)) {
- s->csr[0] &= ~0x0010;
- } else
- if (count--)
- goto txagain;
- }
-
- s->tx_busy = 0;
-}
-
-static void pcnet_poll(PCNetState *s)
-{
- if (CSR_RXON(s)) {
- pcnet_rdte_poll(s);
- }
-
- if (CSR_TDMD(s) ||
- (CSR_TXON(s) && !CSR_DPOLL(s) && pcnet_tdte_poll(s)))
- {
- /* prevent recursion */
- if (s->tx_busy)
- return;
-
- pcnet_transmit(s);
- }
-}
-
-static void pcnet_poll_timer(void *opaque)
-{
- PCNetState *s = opaque;
-
- timer_del(s->poll_timer);
-
- if (CSR_TDMD(s)) {
- pcnet_transmit(s);
- }
-
- pcnet_update_irq(s);
-
- if (!CSR_STOP(s) && !CSR_SPND(s) && !CSR_DPOLL(s)) {
- uint64_t now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) * 33;
- if (!s->timer || !now)
- s->timer = now;
- else {
- uint64_t t = now - s->timer + CSR_POLL(s);
- if (t > 0xffffLL) {
- pcnet_poll(s);
- CSR_POLL(s) = CSR_PINT(s);
- } else
- CSR_POLL(s) = t;
- }
- timer_mod(s->poll_timer,
- pcnet_get_next_poll_time(s,qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL)));
- }
-}
-
-
-static void pcnet_csr_writew(PCNetState *s, uint32_t rap, uint32_t new_value)
-{
- uint16_t val = new_value;
-#ifdef PCNET_DEBUG_CSR
- printf("pcnet_csr_writew rap=%d val=0x%04x\n", rap, val);
-#endif
- switch (rap) {
- case 0:
- s->csr[0] &= ~(val & 0x7f00); /* Clear any interrupt flags */
-
- s->csr[0] = (s->csr[0] & ~0x0040) | (val & 0x0048);
-
- val = (val & 0x007f) | (s->csr[0] & 0x7f00);
-
- /* IFF STOP, STRT and INIT are set, clear STRT and INIT */
- if ((val&7) == 7)
- val &= ~3;
-
- if (!CSR_STOP(s) && (val & 4))
- pcnet_stop(s);
-
- if (!CSR_INIT(s) && (val & 1))
- pcnet_init(s);
-
- if (!CSR_STRT(s) && (val & 2))
- pcnet_start(s);
-
- if (CSR_TDMD(s))
- pcnet_transmit(s);
-
- return;
- case 1:
- case 2:
- case 8:
- case 9:
- case 10:
- case 11:
- case 12:
- case 13:
- case 14:
- case 15:
- case 18: /* CRBAL */
- case 19: /* CRBAU */
- case 20: /* CXBAL */
- case 21: /* CXBAU */
- case 22: /* NRBAU */
- case 23: /* NRBAU */
- case 24:
- case 25:
- case 26:
- case 27:
- case 28:
- case 29:
- case 30:
- case 31:
- case 32:
- case 33:
- case 34:
- case 35:
- case 36:
- case 37:
- case 38:
- case 39:
- case 40: /* CRBC */
- case 41:
- case 42: /* CXBC */
- case 43:
- case 44:
- case 45:
- case 46: /* POLL */
- case 47: /* POLLINT */
- case 72:
- case 74:
- case 76: /* RCVRL */
- case 78: /* XMTRL */
- case 112:
- if (CSR_STOP(s) || CSR_SPND(s))
- break;
- return;
- case 3:
- break;
- case 4:
- s->csr[4] &= ~(val & 0x026a);
- val &= ~0x026a; val |= s->csr[4] & 0x026a;
- break;
- case 5:
- s->csr[5] &= ~(val & 0x0a90);
- val &= ~0x0a90; val |= s->csr[5] & 0x0a90;
- break;
- case 16:
- pcnet_csr_writew(s,1,val);
- return;
- case 17:
- pcnet_csr_writew(s,2,val);
- return;
- case 58:
- pcnet_bcr_writew(s,BCR_SWS,val);
- break;
- default:
- return;
- }
- s->csr[rap] = val;
-}
-
-static uint32_t pcnet_csr_readw(PCNetState *s, uint32_t rap)
-{
- uint32_t val;
- switch (rap) {
- case 0:
- pcnet_update_irq(s);
- val = s->csr[0];
- val |= (val & 0x7800) ? 0x8000 : 0;
- break;
- case 16:
- return pcnet_csr_readw(s,1);
- case 17:
- return pcnet_csr_readw(s,2);
- case 58:
- return pcnet_bcr_readw(s,BCR_SWS);
- case 88:
- val = s->csr[89];
- val <<= 16;
- val |= s->csr[88];
- break;
- default:
- val = s->csr[rap];
- }
-#ifdef PCNET_DEBUG_CSR
- printf("pcnet_csr_readw rap=%d val=0x%04x\n", rap, val);
-#endif
- return val;
-}
-
-static void pcnet_bcr_writew(PCNetState *s, uint32_t rap, uint32_t val)
-{
- rap &= 127;
-#ifdef PCNET_DEBUG_BCR
- printf("pcnet_bcr_writew rap=%d val=0x%04x\n", rap, val);
-#endif
- switch (rap) {
- case BCR_SWS:
- if (!(CSR_STOP(s) || CSR_SPND(s)))
- return;
- val &= ~0x0300;
- switch (val & 0x00ff) {
- case 0:
- val |= 0x0200;
- break;
- case 1:
- val |= 0x0100;
- break;
- case 2:
- case 3:
- val |= 0x0300;
- break;
- default:
- printf("Bad SWSTYLE=0x%02x\n", val & 0xff);
- val = 0x0200;
- break;
- }
-#ifdef PCNET_DEBUG
- printf("BCR_SWS=0x%04x\n", val);
-#endif
- /* fall through */
- case BCR_LNKST:
- case BCR_LED1:
- case BCR_LED2:
- case BCR_LED3:
- case BCR_MC:
- case BCR_FDC:
- case BCR_BSBC:
- case BCR_EECAS:
- case BCR_PLAT:
- s->bcr[rap] = val;
- break;
- default:
- break;
- }
-}
-
-uint32_t pcnet_bcr_readw(PCNetState *s, uint32_t rap)
-{
- uint32_t val;
- rap &= 127;
- switch (rap) {
- case BCR_LNKST:
- case BCR_LED1:
- case BCR_LED2:
- case BCR_LED3:
- val = s->bcr[rap] & ~0x8000;
- val |= (val & 0x017f & s->lnkst) ? 0x8000 : 0;
- break;
- default:
- val = rap < 32 ? s->bcr[rap] : 0;
- break;
- }
-#ifdef PCNET_DEBUG_BCR
- printf("pcnet_bcr_readw rap=%d val=0x%04x\n", rap, val);
-#endif
- return val;
-}
-
-void pcnet_h_reset(void *opaque)
-{
- PCNetState *s = opaque;
-
- s->bcr[BCR_MSRDA] = 0x0005;
- s->bcr[BCR_MSWRA] = 0x0005;
- s->bcr[BCR_MC ] = 0x0002;
- s->bcr[BCR_LNKST] = 0x00c0;
- s->bcr[BCR_LED1 ] = 0x0084;
- s->bcr[BCR_LED2 ] = 0x0088;
- s->bcr[BCR_LED3 ] = 0x0090;
- s->bcr[BCR_FDC ] = 0x0000;
- s->bcr[BCR_BSBC ] = 0x9001;
- s->bcr[BCR_EECAS] = 0x0002;
- s->bcr[BCR_SWS ] = 0x0200;
- s->bcr[BCR_PLAT ] = 0xff06;
-
- pcnet_s_reset(s);
- pcnet_update_irq(s);
- pcnet_poll_timer(s);
-}
-
-void pcnet_ioport_writew(void *opaque, uint32_t addr, uint32_t val)
-{
- PCNetState *s = opaque;
- pcnet_poll_timer(s);
-#ifdef PCNET_DEBUG_IO
- printf("pcnet_ioport_writew addr=0x%08x val=0x%04x\n", addr, val);
-#endif
- if (!BCR_DWIO(s)) {
- switch (addr & 0x0f) {
- case 0x00: /* RDP */
- pcnet_csr_writew(s, s->rap, val);
- break;
- case 0x02:
- s->rap = val & 0x7f;
- break;
- case 0x06:
- pcnet_bcr_writew(s, s->rap, val);
- break;
- }
- }
- pcnet_update_irq(s);
-}
-
-uint32_t pcnet_ioport_readw(void *opaque, uint32_t addr)
-{
- PCNetState *s = opaque;
- uint32_t val = -1;
- pcnet_poll_timer(s);
- if (!BCR_DWIO(s)) {
- switch (addr & 0x0f) {
- case 0x00: /* RDP */
- val = pcnet_csr_readw(s, s->rap);
- break;
- case 0x02:
- val = s->rap;
- break;
- case 0x04:
- pcnet_s_reset(s);
- val = 0;
- break;
- case 0x06:
- val = pcnet_bcr_readw(s, s->rap);
- break;
- }
- }
- pcnet_update_irq(s);
-#ifdef PCNET_DEBUG_IO
- printf("pcnet_ioport_readw addr=0x%08x val=0x%04x\n", addr, val & 0xffff);
-#endif
- return val;
-}
-
-void pcnet_ioport_writel(void *opaque, uint32_t addr, uint32_t val)
-{
- PCNetState *s = opaque;
- pcnet_poll_timer(s);
-#ifdef PCNET_DEBUG_IO
- printf("pcnet_ioport_writel addr=0x%08x val=0x%08x\n", addr, val);
-#endif
- if (BCR_DWIO(s)) {
- switch (addr & 0x0f) {
- case 0x00: /* RDP */
- pcnet_csr_writew(s, s->rap, val & 0xffff);
- break;
- case 0x04:
- s->rap = val & 0x7f;
- break;
- case 0x0c:
- pcnet_bcr_writew(s, s->rap, val & 0xffff);
- break;
- }
- } else
- if ((addr & 0x0f) == 0) {
- /* switch device to dword i/o mode */
- pcnet_bcr_writew(s, BCR_BSBC, pcnet_bcr_readw(s, BCR_BSBC) | 0x0080);
-#ifdef PCNET_DEBUG_IO
- printf("device switched into dword i/o mode\n");
-#endif
- }
- pcnet_update_irq(s);
-}
-
-uint32_t pcnet_ioport_readl(void *opaque, uint32_t addr)
-{
- PCNetState *s = opaque;
- uint32_t val = -1;
- pcnet_poll_timer(s);
- if (BCR_DWIO(s)) {
- switch (addr & 0x0f) {
- case 0x00: /* RDP */
- val = pcnet_csr_readw(s, s->rap);
- break;
- case 0x04:
- val = s->rap;
- break;
- case 0x08:
- pcnet_s_reset(s);
- val = 0;
- break;
- case 0x0c:
- val = pcnet_bcr_readw(s, s->rap);
- break;
- }
- }
- pcnet_update_irq(s);
-#ifdef PCNET_DEBUG_IO
- printf("pcnet_ioport_readl addr=0x%08x val=0x%08x\n", addr, val);
-#endif
- return val;
-}
-
-static bool is_version_2(void *opaque, int version_id)
-{
- return version_id == 2;
-}
-
-const VMStateDescription vmstate_pcnet = {
- .name = "pcnet",
- .version_id = 3,
- .minimum_version_id = 2,
- .fields = (VMStateField[]) {
- VMSTATE_INT32(rap, PCNetState),
- VMSTATE_INT32(isr, PCNetState),
- VMSTATE_INT32(lnkst, PCNetState),
- VMSTATE_UINT32(rdra, PCNetState),
- VMSTATE_UINT32(tdra, PCNetState),
- VMSTATE_BUFFER(prom, PCNetState),
- VMSTATE_UINT16_ARRAY(csr, PCNetState, 128),
- VMSTATE_UINT16_ARRAY(bcr, PCNetState, 32),
- VMSTATE_UINT64(timer, PCNetState),
- VMSTATE_INT32(xmit_pos, PCNetState),
- VMSTATE_BUFFER(buffer, PCNetState),
- VMSTATE_UNUSED_TEST(is_version_2, 4),
- VMSTATE_INT32(tx_busy, PCNetState),
- VMSTATE_TIMER_PTR(poll_timer, PCNetState),
- VMSTATE_END_OF_LIST()
- }
-};
-
-void pcnet_common_init(DeviceState *dev, PCNetState *s, NetClientInfo *info)
-{
- int i;
- uint16_t checksum;
-
- s->poll_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, pcnet_poll_timer, s);
-
- qemu_macaddr_default_if_unset(&s->conf.macaddr);
- s->nic = qemu_new_nic(info, &s->conf, object_get_typename(OBJECT(dev)), dev->id, s);
- qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a);
-
- /* Initialize the PROM */
-
- /*
- Datasheet: http://pdfdata.datasheetsite.com/web/24528/AM79C970A.pdf
- page 95
- */
- memcpy(s->prom, s->conf.macaddr.a, 6);
- /* Reserved Location: must be 00h */
- s->prom[6] = s->prom[7] = 0x00;
- /* Reserved Location: must be 00h */
- s->prom[8] = 0x00;
- /* Hardware ID: must be 11h if compatibility to AMD drivers is desired */
- s->prom[9] = 0x11;
- /* User programmable space, init with 0 */
- s->prom[10] = s->prom[11] = 0x00;
- /* LSByte of two-byte checksum, which is the sum of bytes 00h-0Bh
- and bytes 0Eh and 0Fh, must therefore be initialized with 0! */
- s->prom[12] = s->prom[13] = 0x00;
- /* Must be ASCII W (57h) if compatibility to AMD
- driver software is desired */
- s->prom[14] = s->prom[15] = 0x57;
-
- for (i = 0, checksum = 0; i < 16; i++) {
- checksum += s->prom[i];
- }
- *(uint16_t *)&s->prom[12] = cpu_to_le16(checksum);
-
- s->lnkst = 0x40; /* initial link state: up */
-}