pcnet.c 62.6 KB
Newer Older
B
bellard 已提交
1 2
/*
 * QEMU AMD PC-Net II (Am79C970A) emulation
3
 *
B
bellard 已提交
4
 * Copyright (c) 2004 Antony T Curtis
5
 *
B
bellard 已提交
6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
 * 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.
 */
24

B
bellard 已提交
25 26 27 28
/* 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
 */
29

B
bellard 已提交
30 31 32 33 34 35 36 37
/*
 * 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
 */

P
pbrook 已提交
38 39 40 41
#include "hw.h"
#include "pci.h"
#include "net.h"
#include "qemu-timer.h"
B
bellard 已提交
42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59

//#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


#define PCNET_IOPORT_SIZE       0x20
#define PCNET_PNPMMIO_SIZE      0x20


typedef struct PCNetState_st PCNetState;

struct PCNetState_st {
    PCIDevice dev;
B
bellard 已提交
60
    PCIDevice *pci_dev;
B
bellard 已提交
61 62 63
    VLANClientState *vc;
    NICInfo *nd;
    QEMUTimer *poll_timer;
B
bellard 已提交
64 65
    int mmio_index, rap, isr, lnkst;
    uint32_t rdra, tdra;
B
bellard 已提交
66 67 68 69 70 71
    uint8_t prom[16];
    uint16_t csr[128];
    uint16_t bcr[32];
    uint64_t timer;
    int xmit_pos, recv_pos;
    uint8_t buffer[4096];
B
bellard 已提交
72
    int tx_busy;
P
pbrook 已提交
73
    qemu_irq irq;
B
bellard 已提交
74
    void (*phys_mem_read)(void *dma_opaque, target_phys_addr_t addr,
B
bellard 已提交
75
                         uint8_t *buf, int len, int do_bswap);
B
bellard 已提交
76
    void (*phys_mem_write)(void *dma_opaque, target_phys_addr_t addr,
B
bellard 已提交
77
                          uint8_t *buf, int len, int do_bswap);
B
bellard 已提交
78
    void *dma_opaque;
B
bellard 已提交
79 80
};

B
bellard 已提交
81 82 83 84 85 86
struct qemu_ether_header {
    uint8_t ether_dhost[6];
    uint8_t ether_shost[6];
    uint16_t ether_type;
};

B
bellard 已提交
87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111
/* BUS CONFIGURATION REGISTERS */
#define BCR_MSRDA    0
#define BCR_MSWRA    1
#define BCR_MC       2
#define BCR_LNKST    4
#define BCR_LED1     5
#define BCR_LED2     6
#define BCR_LED3     7
#define BCR_FDC      9
#define BCR_BSBC     18
#define BCR_EECAS    19
#define BCR_SWS      20
#define BCR_PLAT     22

#define BCR_DWIO(S)      !!((S)->bcr[BCR_BSBC] & 0x0080)
#define BCR_SSIZE32(S)   !!((S)->bcr[BCR_SWS ] & 0x0100)
#define BCR_SWSTYLE(S)     ((S)->bcr[BCR_SWS ] & 0x00FF)

#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)
B
bellard 已提交
112
#define CSR_BSWP(S)      !!(((S)->csr[3])&0x0004)
B
bellard 已提交
113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160
#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_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] | ((S)->csr[ 2] << 16))
#define CSR_CRBA(S)      ((S)->csr[18] | ((S)->csr[19] << 16))
#define CSR_CXBA(S)      ((S)->csr[20] | ((S)->csr[21] << 16))
#define CSR_NRBA(S)      ((S)->csr[22] | ((S)->csr[23] << 16))
#define CSR_BADR(S)      ((S)->csr[24] | ((S)->csr[25] << 16))
#define CSR_NRDA(S)      ((S)->csr[26] | ((S)->csr[27] << 16))
#define CSR_CRDA(S)      ((S)->csr[28] | ((S)->csr[29] << 16))
#define CSR_BADX(S)      ((S)->csr[30] | ((S)->csr[31] << 16))
#define CSR_NXDA(S)      ((S)->csr[32] | ((S)->csr[33] << 16))
#define CSR_CXDA(S)      ((S)->csr[34] | ((S)->csr[35] << 16))
#define CSR_NNRD(S)      ((S)->csr[36] | ((S)->csr[37] << 16))
#define CSR_NNXD(S)      ((S)->csr[38] | ((S)->csr[39] << 16))
#define CSR_PXDA(S)      ((S)->csr[60] | ((S)->csr[61] << 16))
#define CSR_NXBA(S)      ((S)->csr[64] | ((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;
B
bellard 已提交
161 162 163 164
    uint16_t padr[3];
    uint16_t ladrf[4];
    uint32_t rdra;
    uint32_t tdra;
B
bellard 已提交
165 166 167 168
};

struct pcnet_initblk32 {
    uint16_t mode;
B
bellard 已提交
169 170 171
    uint8_t rlen;
    uint8_t tlen;
    uint16_t padr[3];
B
bellard 已提交
172
    uint16_t _res;
B
bellard 已提交
173
    uint16_t ladrf[4];
B
bellard 已提交
174 175 176 177 178
    uint32_t rdra;
    uint32_t tdra;
};

struct pcnet_TMD {
179 180 181 182 183
    uint32_t tbadr;
    int16_t length;
    int16_t status;
    uint32_t misc;
    uint32_t res;
B
bellard 已提交
184 185
};

186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226
#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_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

B
bellard 已提交
227
struct pcnet_RMD {
228 229 230 231 232
    uint32_t rbadr;
    int16_t buf_length;
    int16_t status;
    uint32_t msg_length;
    uint32_t res;
B
bellard 已提交
233 234
};

235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282
#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"                         \
B
bellard 已提交
283 284 285 286 287 288
        "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",                      \
289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310
        (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"                         \
B
bellard 已提交
311 312
        "RMD1 : OWN=%d, ERR=%d, FRAM=%d, OFLO=%d, "     \
        "CRC=%d, BUFF=%d, STP=%d, ENP=%d,\n       "     \
313
        "BPE=%d, PAM=%d, LAFM=%d, BAM=%d, ONES=%d, BCNT=%d\n" \
B
bellard 已提交
314
        "RMD2 : RCC=%d, RPC=%d, MCNT=%d, ZEROS=%d\n",   \
315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335
        (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,
B
bellard 已提交
336
                                  target_phys_addr_t addr)
B
bellard 已提交
337
{
338 339 340 341 342 343 344 345 346 347 348 349
    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;
B
bellard 已提交
350
    } else {
351 352
        s->phys_mem_read(s->dma_opaque, addr, (void *)tmd, sizeof(*tmd), 0);
        le32_to_cpus(&tmd->tbadr);
353 354
        le16_to_cpus((uint16_t *)&tmd->length);
        le16_to_cpus((uint16_t *)&tmd->status);
355 356 357 358 359 360
        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;
B
bellard 已提交
361
        }
B
bellard 已提交
362 363 364
    }
}

365
static inline void pcnet_tmd_store(PCNetState *s, const struct pcnet_TMD *tmd,
B
bellard 已提交
366
                                   target_phys_addr_t addr)
B
bellard 已提交
367
{
368 369 370 371 372 373 374 375 376 377 378
    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);
B
bellard 已提交
379
    } else {
380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395
        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;
B
bellard 已提交
396
        }
397
        s->phys_mem_write(s->dma_opaque, addr, (void *)&xda, sizeof(xda), 0);
B
bellard 已提交
398 399 400
    }
}

401
static inline void pcnet_rmd_load(PCNetState *s, struct pcnet_RMD *rmd,
B
bellard 已提交
402
                                  target_phys_addr_t addr)
B
bellard 已提交
403
{
404 405 406 407 408 409 410 411 412 413 414 415
    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;
B
bellard 已提交
416
    } else {
417 418
        s->phys_mem_read(s->dma_opaque, addr, (void *)rmd, sizeof(*rmd), 0);
        le32_to_cpus(&rmd->rbadr);
419 420
        le16_to_cpus((uint16_t *)&rmd->buf_length);
        le16_to_cpus((uint16_t *)&rmd->status);
421 422 423 424 425 426
        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;
B
bellard 已提交
427
        }
B
bellard 已提交
428 429 430
    }
}

431
static inline void pcnet_rmd_store(PCNetState *s, struct pcnet_RMD *rmd,
B
bellard 已提交
432
                                   target_phys_addr_t addr)
B
bellard 已提交
433
{
434 435 436 437 438 439 440 441 442 443 444
    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);
B
bellard 已提交
445
    } else {
446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461
        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;
B
bellard 已提交
462
        }
463
        s->phys_mem_write(s->dma_opaque, addr, (void *)&rda, sizeof(rda), 0);
B
bellard 已提交
464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480
    }
}


#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));                       \
481 482
    (RES) |= (GET_FIELD(rmd.buf_length, RMDL, ONES) != 15) \
          || (GET_FIELD(rmd.msg_length, RMDM, ZEROS) != 0); \
B
bellard 已提交
483 484 485 486 487
} while (0)

#define CHECK_TMD(ADDR,RES) do {                \
    struct pcnet_TMD tmd;                       \
    TMDLOAD(&tmd,(ADDR));                       \
488
    (RES) |= (GET_FIELD(tmd.length, TMDL, ONES) != 15); \
B
bellard 已提交
489 490 491 492 493 494 495 496 497
} while (0)

#else

#define CHECK_RMD(ADDR,RES) do {                \
    switch (BCR_SWSTYLE(s)) {                   \
    case 0x00:                                  \
        do {                                    \
            uint16_t rda[4];                    \
498 499
            s->phys_mem_read(s->dma_opaque, (ADDR), \
                (void *)&rda[0], sizeof(rda), 0); \
B
bellard 已提交
500 501 502 503 504 505 506 507
            (RES) |= (rda[2] & 0xf000)!=0xf000; \
            (RES) |= (rda[3] & 0xf000)!=0x0000; \
        } while (0);                            \
        break;                                  \
    case 0x01:                                  \
    case 0x02:                                  \
        do {                                    \
            uint32_t rda[4];                    \
508
            s->phys_mem_read(s->dma_opaque, (ADDR), \
B
bellard 已提交
509
                (void *)&rda[0], sizeof(rda), 0); \
B
bellard 已提交
510 511 512 513 514 515 516
            (RES) |= (rda[1] & 0x0000f000L)!=0x0000f000L; \
            (RES) |= (rda[2] & 0x0000f000L)!=0x00000000L; \
        } while (0);                            \
        break;                                  \
    case 0x03:                                  \
        do {                                    \
            uint32_t rda[4];                    \
517
            s->phys_mem_read(s->dma_opaque, (ADDR), \
B
bellard 已提交
518
                (void *)&rda[0], sizeof(rda), 0); \
B
bellard 已提交
519 520 521 522 523 524 525 526 527 528 529 530
            (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];                    \
531 532 533
            s->phys_mem_read(s->dma_opaque, (ADDR), \
                (void *)&xda[0], sizeof(xda), 0); \
            (RES) |= (xda[2] & 0xf000)!=0xf000; \
B
bellard 已提交
534 535 536 537 538 539 540
        } while (0);                            \
        break;                                  \
    case 0x01:                                  \
    case 0x02:                                  \
    case 0x03:                                  \
        do {                                    \
            uint32_t xda[4];                    \
541 542
            s->phys_mem_read(s->dma_opaque, (ADDR), \
                (void *)&xda[0], sizeof(xda), 0); \
B
bellard 已提交
543 544 545 546 547 548 549 550 551
            (RES) |= (xda[1] & 0x0000f000L)!=0x0000f000L; \
        } while (0);                            \
        break;                                  \
    }                                           \
} while (0)

#endif

#define PRINT_PKTHDR(BUF) do {                  \
552 553 554 555
    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",                     \
B
bellard 已提交
556 557 558 559
           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], \
560
           be16_to_cpu(hdr->ether_type));       \
B
bellard 已提交
561 562 563 564 565 566 567 568 569 570 571
} 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;

B
bellard 已提交
572
    for (idx = 0; idx < 6; idx++) {
B
bellard 已提交
573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656
        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)
{
B
bellard 已提交
657
    struct qemu_ether_header *hdr = (void *)buf;
658
    uint8_t padr[6] = {
B
bellard 已提交
659 660
        s->csr[12] & 0xff, s->csr[12] >> 8,
        s->csr[13] & 0xff, s->csr[13] >> 8,
661
        s->csr[14] & 0xff, s->csr[14] >> 8
B
bellard 已提交
662
    };
B
bellard 已提交
663
    int result = (!CSR_DRCVPA(s)) && !memcmp(hdr->ether_dhost, padr, 6);
B
bellard 已提交
664 665 666 667 668 669 670 671 672 673 674 675 676
#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)
{
B
bellard 已提交
677
    static const uint8_t BCAST[6] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
B
bellard 已提交
678
    struct qemu_ether_header *hdr = (void *)buf;
B
bellard 已提交
679
    int result = !CSR_DRCVBC(s) && !memcmp(hdr->ether_dhost, BCAST, 6);
B
bellard 已提交
680 681 682 683 684 685 686 687
#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)
{
B
bellard 已提交
688
    struct qemu_ether_header *hdr = (void *)buf;
689
    if ((*(hdr->ether_dhost)&0x01) &&
B
bellard 已提交
690
        ((uint64_t *)&s->csr[8])[0] != 0LL) {
691
        uint8_t ladr[8] = {
B
bellard 已提交
692 693
            s->csr[8] & 0xff, s->csr[8] >> 8,
            s->csr[9] & 0xff, s->csr[9] >> 8,
694 695
            s->csr[10] & 0xff, s->csr[10] >> 8,
            s->csr[11] & 0xff, s->csr[11] >> 8
B
bellard 已提交
696 697 698 699 700 701 702
        };
        int index = lnc_mchash(hdr->ether_dhost) >> 26;
        return !!(ladr[index >> 3] & (1 << (index & 7)));
    }
    return 0;
}

703
static inline target_phys_addr_t pcnet_rdra_addr(PCNetState *s, int idx)
B
bellard 已提交
704 705 706 707 708 709 710
{
    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)
{
711 712
    int64_t next_time = current_time +
        muldiv64(65536 - (CSR_SPND(s) ? 0 : CSR_POLL(s)),
B
bellard 已提交
713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736
                 ticks_per_sec, 33000000L);
    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 uint32_t pcnet_bcr_readw(PCNetState *s, uint32_t rap);

static void pcnet_s_reset(PCNetState *s)
{
#ifdef PCNET_DEBUG
    printf("pcnet_s_reset\n");
#endif

    s->lnkst = 0x40;
    s->rdra = 0;
    s->tdra = 0;
    s->rap = 0;
737

B
bellard 已提交
738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767
    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[103] = 0x0105;
    s->csr[112] = 0x0000;
    s->csr[114] = 0x0000;
    s->csr[122] = 0x0000;
    s->csr[124] = 0x0000;
B
bellard 已提交
768 769

    s->tx_busy = 0;
B
bellard 已提交
770 771 772 773 774 775
}

static void pcnet_update_irq(PCNetState *s)
{
    int isr = 0;
    s->csr[0] &= ~0x0080;
776

B
bellard 已提交
777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795
#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
    {
796

B
bellard 已提交
797 798 799
        isr = CSR_INEA(s);
        s->csr[0] |= 0x0080;
    }
800

B
bellard 已提交
801 802 803 804 805 806 807 808 809 810 811
    if (!!(s->csr[4] & 0x0080) && CSR_INEA(s)) { /* UINT */
        s->csr[4] &= ~0x0080;
        s->csr[4] |= 0x0040;
        s->csr[0] |= 0x0080;
        isr = 1;
#ifdef PCNET_DEBUG
        printf("pcnet user int\n");
#endif
    }

#if 1
812
    if (((s->csr[5]>>1) & s->csr[5]) & 0x0500)
B
bellard 已提交
813 814 815 816 817 818 819 820 821 822 823 824 825 826
#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) {
#ifdef PCNET_DEBUG
        printf("pcnet: INTA=%d\n", isr);
#endif
    }
P
pbrook 已提交
827
    qemu_set_irq(s->irq, isr);
B
bellard 已提交
828
    s->isr = isr;
B
bellard 已提交
829 830 831 832
}

static void pcnet_init(PCNetState *s)
{
B
bellard 已提交
833
    int rlen, tlen;
834
    uint16_t padr[3], ladrf[4], mode;
B
bellard 已提交
835 836
    uint32_t rdra, tdra;

B
bellard 已提交
837 838 839
#ifdef PCNET_DEBUG
    printf("pcnet_init init_addr=0x%08x\n", PHYSADDR(s,CSR_IADR(s)));
#endif
840

B
bellard 已提交
841 842
    if (BCR_SSIZE32(s)) {
        struct pcnet_initblk32 initblk;
B
bellard 已提交
843
        s->phys_mem_read(s->dma_opaque, PHYSADDR(s,CSR_IADR(s)),
B
bellard 已提交
844
                (uint8_t *)&initblk, sizeof(initblk), 0);
845
        mode = le16_to_cpu(initblk.mode);
B
bellard 已提交
846 847
        rlen = initblk.rlen >> 4;
        tlen = initblk.tlen >> 4;
848 849 850 851 852 853 854
	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]);
B
bellard 已提交
855 856
        rdra = le32_to_cpu(initblk.rdra);
        tdra = le32_to_cpu(initblk.tdra);
B
bellard 已提交
857 858
    } else {
        struct pcnet_initblk16 initblk;
B
bellard 已提交
859
        s->phys_mem_read(s->dma_opaque, PHYSADDR(s,CSR_IADR(s)),
B
bellard 已提交
860
                (uint8_t *)&initblk, sizeof(initblk), 0);
861 862 863 864 865 866 867 868
        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]);
B
bellard 已提交
869 870
        rdra = le32_to_cpu(initblk.rdra);
        tdra = le32_to_cpu(initblk.tdra);
B
bellard 已提交
871 872 873 874 875
        rlen = rdra >> 29;
        tlen = tdra >> 29;
        rdra &= 0x00ffffff;
        tdra &= 0x00ffffff;
    }
876

B
bellard 已提交
877
#if defined(PCNET_DEBUG)
878
    printf("rlen=%d tlen=%d\n", rlen, tlen);
B
bellard 已提交
879
#endif
880

B
bellard 已提交
881 882 883
    CSR_RCVRL(s) = (rlen < 9) ? (1 << rlen) : 512;
    CSR_XMTRL(s) = (tlen < 9) ? (1 << tlen) : 512;
    s->csr[ 6] = (tlen << 12) | (rlen << 8);
884 885 886 887 888 889 890 891
    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];
B
bellard 已提交
892 893
    s->rdra = PHYSADDR(s, rdra);
    s->tdra = PHYSADDR(s, tdra);
B
bellard 已提交
894 895 896 897 898

    CSR_RCVRC(s) = CSR_RCVRL(s);
    CSR_XMTRC(s) = CSR_XMTRL(s);

#ifdef PCNET_DEBUG
899
    printf("pcnet ss32=%d rdra=0x%08x[%d] tdra=0x%08x[%d]\n",
B
bellard 已提交
900 901 902 903
        BCR_SSIZE32(s),
        s->rdra, CSR_RCVRL(s), s->tdra, CSR_XMTRL(s));
#endif

904
    s->csr[0] |= 0x0101;
B
bellard 已提交
905 906 907 908 909 910 911 912 913 914 915
    s->csr[0] &= ~0x0004;       /* clear STOP bit */
}

static void pcnet_start(PCNetState *s)
{
#ifdef PCNET_DEBUG
    printf("pcnet_start\n");
#endif

    if (!CSR_DTX(s))
        s->csr[0] |= 0x0010;    /* set TXON */
916

B
bellard 已提交
917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945
    if (!CSR_DRX(s))
        s->csr[0] |= 0x0020;    /* set RXON */

    s->csr[0] &= ~0x0004;       /* clear STOP bit */
    s->csr[0] |= 0x0002;
}

static void pcnet_stop(PCNetState *s)
{
#ifdef PCNET_DEBUG
    printf("pcnet_stop\n");
#endif
    s->csr[0] &= ~0x7feb;
    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
        target_phys_addr_t crda = pcnet_rdra_addr(s, CSR_RCVRC(s));
        target_phys_addr_t nrda = pcnet_rdra_addr(s, -1 + CSR_RCVRC(s));
        target_phys_addr_t nnrd = pcnet_rdra_addr(s, -2 + CSR_RCVRC(s));
#else
946
        target_phys_addr_t crda = s->rdra +
B
bellard 已提交
947 948 949
            (CSR_RCVRL(s) - CSR_RCVRC(s)) *
            (BCR_SWSTYLE(s) ? 16 : 8 );
        int nrdc = CSR_RCVRC(s)<=1 ? CSR_RCVRL(s) : CSR_RCVRC(s)-1;
950
        target_phys_addr_t nrda = s->rdra +
B
bellard 已提交
951 952 953
            (CSR_RCVRL(s) - nrdc) *
            (BCR_SWSTYLE(s) ? 16 : 8 );
        int nnrc = nrdc<=1 ? CSR_RCVRL(s) : nrdc-1;
954
        target_phys_addr_t nnrd = s->rdra +
B
bellard 已提交
955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981
            (CSR_RCVRL(s) - nnrc) *
            (BCR_SWSTYLE(s) ? 16 : 8 );
#endif

        CHECK_RMD(PHYSADDR(s,crda), bad);
        if (!bad) {
            CHECK_RMD(PHYSADDR(s,nrda), bad);
            if (bad || (nrda == crda)) nrda = 0;
            CHECK_RMD(PHYSADDR(s,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%08x\n",
                       PHYSADDR(s,crda));
            }
        } else {
            printf("pcnet: BAD RMD RDA=0x%08x\n", PHYSADDR(s,crda));
#endif
        }
    }
982

B
bellard 已提交
983 984 985
    if (CSR_CRDA(s)) {
        struct pcnet_RMD rmd;
        RMDLOAD(&rmd, PHYSADDR(s,CSR_CRDA(s)));
986 987
        CSR_CRBC(s) = GET_FIELD(rmd.buf_length, RMDL, BCNT);
        CSR_CRST(s) = rmd.status;
B
bellard 已提交
988
#ifdef PCNET_DEBUG_RMD_X
989
        printf("CRDA=0x%08x CRST=0x%04x RCVRC=%d RMDL=0x%04x RMDS=0x%04x RMDM=0x%08x\n",
B
bellard 已提交
990
                PHYSADDR(s,CSR_CRDA(s)), CSR_CRST(s), CSR_RCVRC(s),
991
                rmd.buf_length, rmd.status, rmd.msg_length);
B
bellard 已提交
992 993 994 995 996
        PRINT_RMD(&rmd);
#endif
    } else {
        CSR_CRBC(s) = CSR_CRST(s) = 0;
    }
997

B
bellard 已提交
998 999 1000
    if (CSR_NRDA(s)) {
        struct pcnet_RMD rmd;
        RMDLOAD(&rmd, PHYSADDR(s,CSR_NRDA(s)));
1001 1002
        CSR_NRBC(s) = GET_FIELD(rmd.buf_length, RMDL, BCNT);
        CSR_NRST(s) = rmd.status;
B
bellard 已提交
1003 1004 1005 1006 1007 1008 1009 1010 1011 1012
    } 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) {
1013
        target_phys_addr_t cxda = s->tdra +
B
bellard 已提交
1014
            (CSR_XMTRL(s) - CSR_XMTRC(s)) *
1015
            (BCR_SWSTYLE(s) ? 16 : 8);
B
bellard 已提交
1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026
        int bad = 0;
        CHECK_TMD(PHYSADDR(s, 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;
1027
#ifdef PCNET_DEBUG_X
B
bellard 已提交
1028 1029 1030 1031 1032 1033 1034 1035
            printf("pcnet: BAD TMD XDA=0x%08x\n", PHYSADDR(s,cxda));
#endif
        }
    }

    if (CSR_CXDA(s)) {
        struct pcnet_TMD tmd;

1036
        TMDLOAD(&tmd, PHYSADDR(s,CSR_CXDA(s)));
B
bellard 已提交
1037

1038 1039
        CSR_CXBC(s) = GET_FIELD(tmd.length, TMDL, BCNT);
        CSR_CXST(s) = tmd.status;
B
bellard 已提交
1040 1041 1042
    } else {
        CSR_CXBC(s) = CSR_CXST(s) = 0;
    }
1043

B
bellard 已提交
1044 1045 1046 1047 1048 1049 1050 1051
    return !!(CSR_CXST(s) & 0x8000);
}

static int pcnet_can_receive(void *opaque)
{
    PCNetState *s = opaque;
    if (CSR_STOP(s) || CSR_SPND(s))
        return 0;
1052

B
bellard 已提交
1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081
    if (s->recv_pos > 0)
        return 0;

    return sizeof(s->buffer)-16;
}

#define MIN_BUF_SIZE 60

static void pcnet_receive(void *opaque, const uint8_t *buf, int size)
{
    PCNetState *s = opaque;
    int is_padr = 0, is_bcast = 0, is_ladr = 0;
    uint8_t buf1[60];

    if (CSR_DRX(s) || CSR_STOP(s) || CSR_SPND(s) || !size)
        return;

#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;
    }

1082 1083
    if (CSR_PROM(s)
        || (is_padr=padr_match(s, buf, size))
B
bellard 已提交
1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098
        || (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;
            target_phys_addr_t 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 );
1099
                RMDLOAD(&rmd, PHYSADDR(s,nrda));
1100
                if (GET_FIELD(rmd.status, RMDS, OWN)) {
B
bellard 已提交
1101
#ifdef PCNET_DEBUG_RMD
1102
                    printf("pcnet - scan buffer: RCVRC=%d PREV_RCVRC=%d\n",
B
bellard 已提交
1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124
                                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[8];
            target_phys_addr_t crda = CSR_CRDA(s);
            struct pcnet_RMD rmd;
            int pktcount = 0;

            memcpy(src, buf, size);
1125

B
bellard 已提交
1126 1127 1128 1129 1130 1131 1132 1133
#if 1
            /* no need to compute the CRC */
            src[size] = 0;
            src[size + 1] = 0;
            src[size + 2] = 0;
            src[size + 3] = 0;
            size += 4;
#else
B
bellard 已提交
1134 1135 1136 1137 1138 1139 1140 1141
            /* XXX: avoid CRC generation */
            if (!CSR_ASTRP_RCV(s)) {
                uint32_t fcs = ~0;
                uint8_t *p = src;

                while (size < 46) {
                    src[size++] = 0;
                }
1142

B
bellard 已提交
1143 1144 1145 1146 1147 1148
                while (p != &src[size]) {
                    CRC(fcs, *p++);
                }
                ((uint32_t *)&src[size])[0] = htonl(fcs);
                size += 4; /* FCS at end of packet */
            } else size += 4;
B
bellard 已提交
1149
#endif
B
bellard 已提交
1150 1151 1152 1153 1154 1155 1156

#ifdef PCNET_DEBUG_MATCH
            PRINT_PKTHDR(buf);
#endif

            RMDLOAD(&rmd, PHYSADDR(s,crda));
            /*if (!CSR_LAPPEN(s))*/
1157
                SET_FIELD(&rmd.status, RMDS, STP, 1);
B
bellard 已提交
1158 1159

#define PCNET_RECV_STORE() do {                                 \
1160 1161 1162
    int count = MIN(4096 - GET_FIELD(rmd.buf_length, RMDL, BCNT),size); \
    target_phys_addr_t rbadr = PHYSADDR(s, rmd.rbadr);          \
    s->phys_mem_write(s->dma_opaque, rbadr, src, count, CSR_BSWP(s)); \
B
bellard 已提交
1163
    src += count; size -= count;                                \
1164 1165
    SET_FIELD(&rmd.msg_length, RMDM, MCNT, count);              \
    SET_FIELD(&rmd.status, RMDS, OWN, 0);                       \
B
bellard 已提交
1166 1167 1168 1169 1170 1171 1172 1173
    RMDSTORE(&rmd, PHYSADDR(s,crda));                           \
    pktcount++;                                                 \
} while (0)

            PCNET_RECV_STORE();
            if ((size > 0) && CSR_NRDA(s)) {
                target_phys_addr_t nrda = CSR_NRDA(s);
                RMDLOAD(&rmd, PHYSADDR(s,nrda));
1174
                if (GET_FIELD(rmd.status, RMDS, OWN)) {
B
bellard 已提交
1175 1176 1177 1178
                    crda = nrda;
                    PCNET_RECV_STORE();
                    if ((size > 0) && (nrda=CSR_NNRD(s))) {
                        RMDLOAD(&rmd, PHYSADDR(s,nrda));
1179
                        if (GET_FIELD(rmd.status, RMDS, OWN)) {
B
bellard 已提交
1180 1181 1182 1183
                            crda = nrda;
                            PCNET_RECV_STORE();
                        }
                    }
1184
                }
B
bellard 已提交
1185 1186 1187 1188 1189 1190
            }

#undef PCNET_RECV_STORE

            RMDLOAD(&rmd, PHYSADDR(s,crda));
            if (size == 0) {
1191 1192 1193 1194
                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);
B
bellard 已提交
1195
            } else {
1196 1197 1198
                SET_FIELD(&rmd.status, RMDS, OFLO, 1);
                SET_FIELD(&rmd.status, RMDS, BUFF, 1);
                SET_FIELD(&rmd.status, RMDS, ERR, 1);
B
bellard 已提交
1199 1200 1201 1202 1203
            }
            RMDSTORE(&rmd, PHYSADDR(s,crda));
            s->csr[0] |= 0x0400;

#ifdef PCNET_DEBUG
1204
            printf("RCVRC=%d CRDA=0x%08x BLKS=%d\n",
B
bellard 已提交
1205 1206 1207 1208
                CSR_RCVRC(s), PHYSADDR(s,CSR_CRDA(s)), pktcount);
#endif
#ifdef PCNET_DEBUG_RMD
            PRINT_RMD(&rmd);
1209
#endif
B
bellard 已提交
1210 1211 1212 1213 1214

            while (pktcount--) {
                if (CSR_RCVRC(s) <= 1)
                    CSR_RCVRC(s) = CSR_RCVRL(s);
                else
1215
                    CSR_RCVRC(s)--;
B
bellard 已提交
1216
            }
1217

B
bellard 已提交
1218 1219
            pcnet_rdte_poll(s);

1220
        }
B
bellard 已提交
1221 1222 1223
    }

    pcnet_poll(s);
1224
    pcnet_update_irq(s);
B
bellard 已提交
1225 1226 1227 1228 1229 1230 1231
}

static void pcnet_transmit(PCNetState *s)
{
    target_phys_addr_t xmit_cxda = 0;
    int count = CSR_XMTRL(s)-1;
    s->xmit_pos = -1;
1232

B
bellard 已提交
1233 1234 1235 1236
    if (!CSR_TXON(s)) {
        s->csr[0] &= ~0x0008;
        return;
    }
B
bellard 已提交
1237 1238 1239

    s->tx_busy = 1;

B
bellard 已提交
1240 1241 1242 1243
    txagain:
    if (pcnet_tdte_poll(s)) {
        struct pcnet_TMD tmd;

1244
        TMDLOAD(&tmd, PHYSADDR(s,CSR_CXDA(s)));
B
bellard 已提交
1245 1246 1247 1248 1249

#ifdef PCNET_DEBUG_TMD
        printf("  TMDLOAD 0x%08x\n", PHYSADDR(s,CSR_CXDA(s)));
        PRINT_TMD(&tmd);
#endif
1250 1251
        if (GET_FIELD(tmd.status, TMDS, STP)) {
            s->xmit_pos = 0;
B
bellard 已提交
1252 1253
            xmit_cxda = PHYSADDR(s,CSR_CXDA(s));
        }
1254 1255 1256 1257 1258 1259
        if (!GET_FIELD(tmd.status, TMDS, ENP)) {
            int bcnt = 4096 - GET_FIELD(tmd.length, TMDL, BCNT);
            s->phys_mem_read(s->dma_opaque, PHYSADDR(s, tmd.tbadr),
                             s->buffer + s->xmit_pos, bcnt, CSR_BSWP(s));
            s->xmit_pos += bcnt;
        } else if (s->xmit_pos >= 0) {
1260 1261 1262 1263
            int bcnt = 4096 - GET_FIELD(tmd.length, TMDL, BCNT);
            s->phys_mem_read(s->dma_opaque, PHYSADDR(s, tmd.tbadr),
                             s->buffer + s->xmit_pos, bcnt, CSR_BSWP(s));
            s->xmit_pos += bcnt;
B
bellard 已提交
1264 1265
#ifdef PCNET_DEBUG
            printf("pcnet_transmit size=%d\n", s->xmit_pos);
1266
#endif
B
bellard 已提交
1267 1268 1269
            if (CSR_LOOP(s))
                pcnet_receive(s, s->buffer, s->xmit_pos);
            else
1270 1271
                if (s->vc)
                    qemu_send_packet(s->vc, s->buffer, s->xmit_pos);
B
bellard 已提交
1272 1273 1274 1275 1276 1277

            s->csr[0] &= ~0x0008;   /* clear TDMD */
            s->csr[4] |= 0x0004;    /* set TXSTRT */
            s->xmit_pos = -1;
        }

1278
        SET_FIELD(&tmd.status, TMDS, OWN, 0);
B
bellard 已提交
1279
        TMDSTORE(&tmd, PHYSADDR(s,CSR_CXDA(s)));
1280
        if (!CSR_TOKINTD(s) || (CSR_LTINTEN(s) && GET_FIELD(tmd.status, TMDS, LTINT)))
B
bellard 已提交
1281 1282 1283 1284 1285 1286 1287 1288 1289
            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;

1290
    } else
B
bellard 已提交
1291 1292
    if (s->xmit_pos >= 0) {
        struct pcnet_TMD tmd;
1293 1294 1295 1296 1297
        TMDLOAD(&tmd, PHYSADDR(s,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);
B
bellard 已提交
1298 1299 1300 1301 1302 1303 1304 1305
        TMDSTORE(&tmd, PHYSADDR(s,xmit_cxda));
        s->csr[0] |= 0x0200;    /* set TINT */
        if (!CSR_DXSUFLO(s)) {
            s->csr[0] &= ~0x0010;
        } else
        if (count--)
          goto txagain;
    }
B
bellard 已提交
1306 1307

    s->tx_busy = 0;
B
bellard 已提交
1308 1309 1310 1311 1312 1313 1314 1315
}

static void pcnet_poll(PCNetState *s)
{
    if (CSR_RXON(s)) {
        pcnet_rdte_poll(s);
    }

1316
    if (CSR_TDMD(s) ||
B
bellard 已提交
1317
        (CSR_TXON(s) && !CSR_DPOLL(s) && pcnet_tdte_poll(s)))
B
bellard 已提交
1318 1319 1320 1321 1322
    {
        /* prevent recursion */
        if (s->tx_busy)
            return;

B
bellard 已提交
1323
        pcnet_transmit(s);
B
bellard 已提交
1324
    }
B
bellard 已提交
1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336
}

static void pcnet_poll_timer(void *opaque)
{
    PCNetState *s = opaque;

    qemu_del_timer(s->poll_timer);

    if (CSR_TDMD(s)) {
        pcnet_transmit(s);
    }

1337
    pcnet_update_irq(s);
B
bellard 已提交
1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350

    if (!CSR_STOP(s) && !CSR_SPND(s) && !CSR_DPOLL(s)) {
        uint64_t now = qemu_get_clock(vm_clock) * 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;
        }
1351
        qemu_mod_timer(s->poll_timer,
B
bellard 已提交
1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383
            pcnet_get_next_poll_time(s,qemu_get_clock(vm_clock)));
    }
}


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);

1384
        if (CSR_TDMD(s))
B
bellard 已提交
1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438
            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:
1439
        s->csr[4] &= ~(val & 0x026a);
B
bellard 已提交
1440 1441 1442
        val &= ~0x026a; val |= s->csr[4] & 0x026a;
        break;
    case 5:
1443
        s->csr[5] &= ~(val & 0x0a90);
B
bellard 已提交
1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557
        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
    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;
    }
}

static 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;
}

B
blueswir1 已提交
1558
static void pcnet_h_reset(void *opaque)
B
bellard 已提交
1559
{
B
bellard 已提交
1560
    PCNetState *s = opaque;
B
bellard 已提交
1561 1562 1563 1564 1565
    int i;
    uint16_t checksum;

    /* Initialize the PROM */

1566 1567
    if (s->nd)
        memcpy(s->prom, s->nd->macaddr, 6);
B
bellard 已提交
1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596
    s->prom[12] = s->prom[13] = 0x00;
    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->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);
}

static void pcnet_aprom_writeb(void *opaque, uint32_t addr, uint32_t val)
{
    PCNetState *s = opaque;
#ifdef PCNET_DEBUG
    printf("pcnet_aprom_writeb addr=0x%08x val=0x%02x\n", addr, val);
1597
#endif
B
bellard 已提交
1598 1599 1600
    /* Check APROMWE bit to enable write access */
    if (pcnet_bcr_readw(s,2) & 0x80)
        s->prom[addr & 15] = val;
1601
}
B
bellard 已提交
1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689

static uint32_t pcnet_aprom_readb(void *opaque, uint32_t addr)
{
    PCNetState *s = opaque;
    uint32_t val = s->prom[addr &= 15];
#ifdef PCNET_DEBUG
    printf("pcnet_aprom_readb addr=0x%08x val=0x%02x\n", addr, val);
#endif
    return val;
}

static 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);
}

static 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;
}

static 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");
1690
#endif
B
bellard 已提交
1691 1692 1693 1694 1695 1696 1697 1698 1699
    }
    pcnet_update_irq(s);
}

static uint32_t pcnet_ioport_readl(void *opaque, uint32_t addr)
{
    PCNetState *s = opaque;
    uint32_t val = -1;
    pcnet_poll_timer(s);
1700
    if (BCR_DWIO(s)) {
B
bellard 已提交
1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723
        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;
}

1724
static void pcnet_ioport_map(PCIDevice *pci_dev, int region_num,
B
bellard 已提交
1725 1726 1727 1728 1729 1730 1731 1732 1733 1734
                             uint32_t addr, uint32_t size, int type)
{
    PCNetState *d = (PCNetState *)pci_dev;

#ifdef PCNET_DEBUG_IO
    printf("pcnet_ioport_map addr=0x%04x size=0x%04x\n", addr, size);
#endif

    register_ioport_write(addr, 16, 1, pcnet_aprom_writeb, d);
    register_ioport_read(addr, 16, 1, pcnet_aprom_readb, d);
1735

B
bellard 已提交
1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751
    register_ioport_write(addr + 0x10, 0x10, 2, pcnet_ioport_writew, d);
    register_ioport_read(addr + 0x10, 0x10, 2, pcnet_ioport_readw, d);
    register_ioport_write(addr + 0x10, 0x10, 4, pcnet_ioport_writel, d);
    register_ioport_read(addr + 0x10, 0x10, 4, pcnet_ioport_readl, d);
}

static void pcnet_mmio_writeb(void *opaque, target_phys_addr_t addr, uint32_t val)
{
    PCNetState *d = opaque;
#ifdef PCNET_DEBUG_IO
    printf("pcnet_mmio_writeb addr=0x%08x val=0x%02x\n", addr, val);
#endif
    if (!(addr & 0x10))
        pcnet_aprom_writeb(d, addr & 0x0f, val);
}

1752
static uint32_t pcnet_mmio_readb(void *opaque, target_phys_addr_t addr)
B
bellard 已提交
1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778
{
    PCNetState *d = opaque;
    uint32_t val = -1;
    if (!(addr & 0x10))
        val = pcnet_aprom_readb(d, addr & 0x0f);
#ifdef PCNET_DEBUG_IO
    printf("pcnet_mmio_readb addr=0x%08x val=0x%02x\n", addr, val & 0xff);
#endif
    return val;
}

static void pcnet_mmio_writew(void *opaque, target_phys_addr_t addr, uint32_t val)
{
    PCNetState *d = opaque;
#ifdef PCNET_DEBUG_IO
    printf("pcnet_mmio_writew addr=0x%08x val=0x%04x\n", addr, val);
#endif
    if (addr & 0x10)
        pcnet_ioport_writew(d, addr & 0x0f, val);
    else {
        addr &= 0x0f;
        pcnet_aprom_writeb(d, addr, val & 0xff);
        pcnet_aprom_writeb(d, addr+1, (val & 0xff00) >> 8);
    }
}

1779
static uint32_t pcnet_mmio_readw(void *opaque, target_phys_addr_t addr)
B
bellard 已提交
1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813
{
    PCNetState *d = opaque;
    uint32_t val = -1;
    if (addr & 0x10)
        val = pcnet_ioport_readw(d, addr & 0x0f);
    else {
        addr &= 0x0f;
        val = pcnet_aprom_readb(d, addr+1);
        val <<= 8;
        val |= pcnet_aprom_readb(d, addr);
    }
#ifdef PCNET_DEBUG_IO
    printf("pcnet_mmio_readw addr=0x%08x val = 0x%04x\n", addr, val & 0xffff);
#endif
    return val;
}

static void pcnet_mmio_writel(void *opaque, target_phys_addr_t addr, uint32_t val)
{
    PCNetState *d = opaque;
#ifdef PCNET_DEBUG_IO
    printf("pcnet_mmio_writel addr=0x%08x val=0x%08x\n", addr, val);
#endif
    if (addr & 0x10)
        pcnet_ioport_writel(d, addr & 0x0f, val);
    else {
        addr &= 0x0f;
        pcnet_aprom_writeb(d, addr, val & 0xff);
        pcnet_aprom_writeb(d, addr+1, (val & 0xff00) >> 8);
        pcnet_aprom_writeb(d, addr+2, (val & 0xff0000) >> 16);
        pcnet_aprom_writeb(d, addr+3, (val & 0xff000000) >> 24);
    }
}

1814
static uint32_t pcnet_mmio_readl(void *opaque, target_phys_addr_t addr)
B
bellard 已提交
1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836
{
    PCNetState *d = opaque;
    uint32_t val;
    if (addr & 0x10)
        val = pcnet_ioport_readl(d, addr & 0x0f);
    else {
        addr &= 0x0f;
        val = pcnet_aprom_readb(d, addr+3);
        val <<= 8;
        val |= pcnet_aprom_readb(d, addr+2);
        val <<= 8;
        val |= pcnet_aprom_readb(d, addr+1);
        val <<= 8;
        val |= pcnet_aprom_readb(d, addr);
    }
#ifdef PCNET_DEBUG_IO
    printf("pcnet_mmio_readl addr=0x%08x val=0x%08x\n", addr, val);
#endif
    return val;
}


B
bellard 已提交
1837 1838 1839 1840 1841 1842 1843 1844
static void pcnet_save(QEMUFile *f, void *opaque)
{
    PCNetState *s = opaque;
    unsigned int i;

    if (s->pci_dev)
        pci_device_save(s->pci_dev, f);

1845 1846 1847
    qemu_put_be32(f, s->rap);
    qemu_put_be32(f, s->isr);
    qemu_put_be32(f, s->lnkst);
B
bellard 已提交
1848 1849 1850 1851 1852 1853 1854 1855
    qemu_put_be32s(f, &s->rdra);
    qemu_put_be32s(f, &s->tdra);
    qemu_put_buffer(f, s->prom, 16);
    for (i = 0; i < 128; i++)
        qemu_put_be16s(f, &s->csr[i]);
    for (i = 0; i < 32; i++)
        qemu_put_be16s(f, &s->bcr[i]);
    qemu_put_be64s(f, &s->timer);
1856 1857
    qemu_put_be32(f, s->xmit_pos);
    qemu_put_be32(f, s->recv_pos);
B
bellard 已提交
1858
    qemu_put_buffer(f, s->buffer, 4096);
1859
    qemu_put_be32(f, s->tx_busy);
B
bellard 已提交
1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876
    qemu_put_timer(f, s->poll_timer);
}

static int pcnet_load(QEMUFile *f, void *opaque, int version_id)
{
    PCNetState *s = opaque;
    int i, ret;

    if (version_id != 2)
        return -EINVAL;

    if (s->pci_dev) {
        ret = pci_device_load(s->pci_dev, f);
        if (ret < 0)
            return ret;
    }

1877 1878 1879
    qemu_get_be32s(f, (uint32_t*)&s->rap);
    qemu_get_be32s(f, (uint32_t*)&s->isr);
    qemu_get_be32s(f, (uint32_t*)&s->lnkst);
B
bellard 已提交
1880 1881 1882 1883 1884 1885 1886 1887
    qemu_get_be32s(f, &s->rdra);
    qemu_get_be32s(f, &s->tdra);
    qemu_get_buffer(f, s->prom, 16);
    for (i = 0; i < 128; i++)
        qemu_get_be16s(f, &s->csr[i]);
    for (i = 0; i < 32; i++)
        qemu_get_be16s(f, &s->bcr[i]);
    qemu_get_be64s(f, &s->timer);
1888 1889
    qemu_get_be32s(f, (uint32_t*)&s->xmit_pos);
    qemu_get_be32s(f, (uint32_t*)&s->recv_pos);
B
bellard 已提交
1890
    qemu_get_buffer(f, s->buffer, 4096);
1891
    qemu_get_be32s(f, (uint32_t*)&s->tx_busy);
B
bellard 已提交
1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902
    qemu_get_timer(f, s->poll_timer);

    return 0;
}

static void pcnet_common_init(PCNetState *d, NICInfo *nd, const char *info_str)
{
    d->poll_timer = qemu_new_timer(vm_clock, pcnet_poll_timer, d);

    d->nd = nd;

1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917
    if (nd && nd->vlan) {
        d->vc = qemu_new_vlan_client(nd->vlan, pcnet_receive,
                                     pcnet_can_receive, d);

        snprintf(d->vc->info_str, sizeof(d->vc->info_str),
                 "pcnet macaddr=%02x:%02x:%02x:%02x:%02x:%02x",
                 d->nd->macaddr[0],
                 d->nd->macaddr[1],
                 d->nd->macaddr[2],
                 d->nd->macaddr[3],
                 d->nd->macaddr[4],
                 d->nd->macaddr[5]);
    } else {
        d->vc = NULL;
    }
B
bellard 已提交
1918
    pcnet_h_reset(d);
1919
    register_savevm("pcnet", -1, 2, pcnet_save, pcnet_load, d);
B
bellard 已提交
1920 1921 1922 1923
}

/* PCI interface */

B
bellard 已提交
1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935
static CPUWriteMemoryFunc *pcnet_mmio_write[] = {
    (CPUWriteMemoryFunc *)&pcnet_mmio_writeb,
    (CPUWriteMemoryFunc *)&pcnet_mmio_writew,
    (CPUWriteMemoryFunc *)&pcnet_mmio_writel
};

static CPUReadMemoryFunc *pcnet_mmio_read[] = {
    (CPUReadMemoryFunc *)&pcnet_mmio_readb,
    (CPUReadMemoryFunc *)&pcnet_mmio_readw,
    (CPUReadMemoryFunc *)&pcnet_mmio_readl
};

1936
static void pcnet_mmio_map(PCIDevice *pci_dev, int region_num,
B
bellard 已提交
1937 1938 1939 1940 1941
                            uint32_t addr, uint32_t size, int type)
{
    PCNetState *d = (PCNetState *)pci_dev;

#ifdef PCNET_DEBUG_IO
1942
    printf("pcnet_mmio_map addr=0x%08x 0x%08x\n", addr, size);
B
bellard 已提交
1943 1944
#endif

B
bellard 已提交
1945 1946 1947 1948
    cpu_register_physical_memory(addr, PCNET_PNPMMIO_SIZE, d->mmio_index);
}

static void pci_physical_memory_write(void *dma_opaque, target_phys_addr_t addr,
B
bellard 已提交
1949
                                      uint8_t *buf, int len, int do_bswap)
B
bellard 已提交
1950 1951 1952 1953 1954
{
    cpu_physical_memory_write(addr, buf, len);
}

static void pci_physical_memory_read(void *dma_opaque, target_phys_addr_t addr,
B
bellard 已提交
1955
                                     uint8_t *buf, int len, int do_bswap)
B
bellard 已提交
1956 1957
{
    cpu_physical_memory_read(addr, buf, len);
B
bellard 已提交
1958 1959
}

1960
void pci_pcnet_init(PCIBus *bus, NICInfo *nd, int devfn)
B
bellard 已提交
1961 1962 1963 1964 1965
{
    PCNetState *d;
    uint8_t *pci_conf;

#if 0
1966
    printf("sizeof(RMD)=%d, sizeof(TMD)=%d\n",
B
bellard 已提交
1967 1968 1969 1970
        sizeof(struct pcnet_RMD), sizeof(struct pcnet_TMD));
#endif

    d = (PCNetState *)pci_register_device(bus, "PCNet", sizeof(PCNetState),
1971
                                          devfn, NULL, NULL);
1972

B
bellard 已提交
1973
    pci_conf = d->dev.config;
1974

B
bellard 已提交
1975
    *(uint16_t *)&pci_conf[0x00] = cpu_to_le16(0x1022);
1976
    *(uint16_t *)&pci_conf[0x02] = cpu_to_le16(0x2000);
1977
    *(uint16_t *)&pci_conf[0x04] = cpu_to_le16(0x0007);
B
bellard 已提交
1978 1979 1980
    *(uint16_t *)&pci_conf[0x06] = cpu_to_le16(0x0280);
    pci_conf[0x08] = 0x10;
    pci_conf[0x09] = 0x00;
1981
    pci_conf[0x0a] = 0x00; // ethernet network controller
B
bellard 已提交
1982 1983
    pci_conf[0x0b] = 0x02;
    pci_conf[0x0e] = 0x00; // header_type
1984

B
bellard 已提交
1985 1986
    *(uint32_t *)&pci_conf[0x10] = cpu_to_le32(0x00000001);
    *(uint32_t *)&pci_conf[0x14] = cpu_to_le32(0x00000000);
1987

B
bellard 已提交
1988 1989 1990 1991 1992
    pci_conf[0x3d] = 1; // interrupt pin 0
    pci_conf[0x3e] = 0x06;
    pci_conf[0x3f] = 0xff;

    /* Handler for memory-mapped I/O */
B
bellard 已提交
1993
    d->mmio_index =
B
bellard 已提交
1994 1995
      cpu_register_io_memory(0, pcnet_mmio_read, pcnet_mmio_write, d);

1996
    pci_register_io_region((PCIDevice *)d, 0, PCNET_IOPORT_SIZE,
B
bellard 已提交
1997
                           PCI_ADDRESS_SPACE_IO, pcnet_ioport_map);
1998

1999
    pci_register_io_region((PCIDevice *)d, 1, PCNET_PNPMMIO_SIZE,
B
bellard 已提交
2000
                           PCI_ADDRESS_SPACE_MEM, pcnet_mmio_map);
2001

P
pbrook 已提交
2002
    d->irq = d->dev.irq[0];
B
bellard 已提交
2003 2004 2005
    d->phys_mem_read = pci_physical_memory_read;
    d->phys_mem_write = pci_physical_memory_write;
    d->pci_dev = &d->dev;
B
bellard 已提交
2006

B
bellard 已提交
2007 2008
    pcnet_common_init(d, nd, "pcnet");
}
B
bellard 已提交
2009

B
bellard 已提交
2010
/* SPARC32 interface */
B
bellard 已提交
2011

B
bellard 已提交
2012
#if defined (TARGET_SPARC) && !defined(TARGET_SPARC64) // Avoid compile failure
P
pbrook 已提交
2013
#include "sun4m.h"
B
bellard 已提交
2014

2015 2016 2017 2018 2019 2020
static void parent_lance_reset(void *opaque, int irq, int level)
{
    if (level)
        pcnet_h_reset(opaque);
}

B
blueswir1 已提交
2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036
static void lance_mem_writew(void *opaque, target_phys_addr_t addr,
                             uint32_t val)
{
#ifdef PCNET_DEBUG_IO
    printf("lance_mem_writew addr=" TARGET_FMT_plx " val=0x%04x\n", addr,
           val & 0xffff);
#endif
    pcnet_ioport_writew(opaque, addr & 7, val & 0xffff);
}

static uint32_t lance_mem_readw(void *opaque, target_phys_addr_t addr)
{
    uint32_t val;

    val = pcnet_ioport_readw(opaque, addr & 7);
#ifdef PCNET_DEBUG_IO
2037
    printf("lance_mem_readw addr=" TARGET_FMT_plx " val = 0x%04x\n", addr,
B
blueswir1 已提交
2038 2039 2040 2041 2042 2043
           val & 0xffff);
#endif

    return val & 0xffff;
}

B
bellard 已提交
2044
static CPUReadMemoryFunc *lance_mem_read[3] = {
2045
    NULL,
B
blueswir1 已提交
2046
    lance_mem_readw,
2047
    NULL,
B
bellard 已提交
2048 2049 2050
};

static CPUWriteMemoryFunc *lance_mem_write[3] = {
2051
    NULL,
B
blueswir1 已提交
2052
    lance_mem_writew,
2053
    NULL,
B
bellard 已提交
2054 2055
};

2056
void lance_init(NICInfo *nd, target_phys_addr_t leaddr, void *dma_opaque,
2057
                qemu_irq irq, qemu_irq *reset)
B
bellard 已提交
2058 2059 2060 2061 2062 2063
{
    PCNetState *d;
    int lance_io_memory;

    d = qemu_mallocz(sizeof(PCNetState));
    if (!d)
2064
        return;
B
bellard 已提交
2065 2066 2067 2068 2069

    lance_io_memory =
        cpu_register_io_memory(0, lance_mem_read, lance_mem_write, d);

    d->dma_opaque = dma_opaque;
2070 2071

    *reset = *qemu_allocate_irqs(parent_lance_reset, d, 1);
B
blueswir1 已提交
2072

B
bellard 已提交
2073 2074
    cpu_register_physical_memory(leaddr, 4, lance_io_memory);

P
pbrook 已提交
2075
    d->irq = irq;
B
bellard 已提交
2076 2077 2078 2079
    d->phys_mem_read = ledma_memory_read;
    d->phys_mem_write = ledma_memory_write;

    pcnet_common_init(d, nd, "lance");
B
bellard 已提交
2080
}
B
bellard 已提交
2081
#endif /* TARGET_SPARC */