The Design and Implementation of the FreeBSD Operating System, Second Edition
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FreeBSD/Linux Kernel Cross Reference
sys/dev/wb/if_wbreg.h

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    1 /*-
    2  * Copyright (c) 1997, 1998
    3  *      Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  * 3. All advertising materials mentioning features or use of this software
   14  *    must display the following acknowledgement:
   15  *      This product includes software developed by Bill Paul.
   16  * 4. Neither the name of the author nor the names of any co-contributors
   17  *    may be used to endorse or promote products derived from this software
   18  *    without specific prior written permission.
   19  *
   20  * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
   21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   23  * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
   24  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
   30  * THE POSSIBILITY OF SUCH DAMAGE.
   31  *
   32  * $FreeBSD: releng/9.0/sys/dev/wb/if_wbreg.h 227277 2011-11-06 21:09:10Z marius $
   33  */
   34 
   35 /*
   36  * Winbond register definitions.
   37  */
   38 
   39 #define WB_BUSCTL               0x00    /* bus control */
   40 #define WB_TXSTART              0x04    /* tx start demand */
   41 #define WB_RXSTART              0x08    /* rx start demand */
   42 #define WB_RXADDR               0x0C    /* rx descriptor list start addr */
   43 #define WB_TXADDR               0x10    /* tx descriptor list start addr */
   44 #define WB_ISR                  0x14    /* interrupt status register */
   45 #define WB_NETCFG               0x18    /* network config register */
   46 #define WB_IMR                  0x1C    /* interrupt mask */
   47 #define WB_FRAMESDISCARDED      0x20    /* # of discarded frames */
   48 #define WB_SIO                  0x24    /* MII and ROM/EEPROM access */
   49 #define WB_BOOTROMADDR          0x28
   50 #define WB_TIMER                0x2C    /* general timer */
   51 #define WB_CURRXCTL             0x30    /* current RX descriptor */
   52 #define WB_CURRXBUF             0x34    /* current RX buffer */
   53 #define WB_MAR0                 0x38    /* multicast filter 0 */
   54 #define WB_MAR1                 0x3C    /* multicast filter 1 */
   55 #define WB_NODE0                0x40    /* station address 0 */
   56 #define WB_NODE1                0x44    /* station address 1 */
   57 #define WB_BOOTROMSIZE          0x48    /* boot ROM size */
   58 #define WB_CURTXCTL             0x4C    /* current TX descriptor */
   59 #define WB_CURTXBUF             0x50    /* current TX buffer */
   60 
   61 /*
   62  * Bus control bits.
   63  */
   64 #define WB_BUSCTL_RESET         0x00000001
   65 #define WB_BUSCTL_ARBITRATION   0x00000002
   66 #define WB_BUSCTL_SKIPLEN       0x0000007C
   67 #define WB_BUSCTL_BUF_BIGENDIAN 0x00000080
   68 #define WB_BUSCTL_BURSTLEN      0x00003F00
   69 #define WB_BUSCTL_CACHEALIGN    0x0000C000
   70 #define WB_BUSCTL_DES_BIGENDIAN 0x00100000
   71 #define WB_BUSCTL_WAIT          0x00200000
   72 #define WB_BUSCTL_MUSTBEONE     0x00400000
   73 
   74 #define WB_SKIPLEN_1LONG        0x00000004
   75 #define WB_SKIPLEN_2LONG        0x00000008
   76 #define WB_SKIPLEN_3LONG        0x00000010
   77 #define WB_SKIPLEN_4LONG        0x00000020
   78 #define WB_SKIPLEN_5LONG        0x00000040
   79 
   80 #define WB_CACHEALIGN_NONE      0x00000000
   81 #define WB_CACHEALIGN_8LONG     0x00004000
   82 #define WB_CACHEALIGN_16LONG    0x00008000
   83 #define WB_CACHEALIGN_32LONG    0x0000C000
   84 
   85 #define WB_BURSTLEN_USECA       0x00000000
   86 #define WB_BURSTLEN_1LONG       0x00000100
   87 #define WB_BURSTLEN_2LONG       0x00000200
   88 #define WB_BURSTLEN_4LONG       0x00000400
   89 #define WB_BURSTLEN_8LONG       0x00000800
   90 #define WB_BURSTLEN_16LONG      0x00001000
   91 #define WB_BURSTLEN_32LONG      0x00002000
   92 
   93 #define WB_BUSCTL_CONFIG        (WB_CACHEALIGN_8LONG|WB_SKIPLEN_3LONG| \
   94                                         WB_BURSTLEN_8LONG)
   95 
   96 /*
   97  * Interrupt status bits.
   98  */
   99 #define WB_ISR_TX_OK            0x00000001
  100 #define WB_ISR_TX_IDLE          0x00000002
  101 #define WB_ISR_TX_NOBUF         0x00000004
  102 #define WB_ISR_RX_EARLY         0x00000008
  103 #define WB_ISR_RX_ERR           0x00000010
  104 #define WB_ISR_TX_UNDERRUN      0x00000020
  105 #define WB_ISR_RX_OK            0x00000040
  106 #define WB_ISR_RX_NOBUF         0x00000080
  107 #define WB_ISR_RX_IDLE          0x00000100
  108 #define WB_ISR_TX_EARLY         0x00000400
  109 #define WB_ISR_TIMER_EXPIRED    0x00000800
  110 #define WB_ISR_BUS_ERR          0x00002000
  111 #define WB_ISR_ABNORMAL         0x00008000
  112 #define WB_ISR_NORMAL           0x00010000
  113 #define WB_ISR_RX_STATE         0x000E0000
  114 #define WB_ISR_TX_STATE         0x00700000
  115 #define WB_ISR_BUSERRTYPE       0x03800000
  116 
  117 /*
  118  * The RX_STATE and TX_STATE fields are not described anywhere in the
  119  * Winbond datasheet, however it appears that the Winbond chip is an
  120  * attempt at a DEC 'tulip' clone, hence the ISR register is identical
  121  * to that of the tulip chip and we can steal the bit definitions from
  122  * the tulip documentation.
  123  */
  124 #define WB_RXSTATE_STOPPED      0x00000000      /* 000 - Stopped */
  125 #define WB_RXSTATE_FETCH        0x00020000      /* 001 - Fetching descriptor */
  126 #define WB_RXSTATE_ENDCHECK     0x00040000      /* 010 - check for rx end */
  127 #define WB_RXSTATE_WAIT         0x00060000      /* 011 - waiting for packet */
  128 #define WB_RXSTATE_SUSPEND      0x00080000      /* 100 - suspend rx */
  129 #define WB_RXSTATE_CLOSE        0x000A0000      /* 101 - close tx desc */
  130 #define WB_RXSTATE_FLUSH        0x000C0000      /* 110 - flush from FIFO */
  131 #define WB_RXSTATE_DEQUEUE      0x000E0000      /* 111 - dequeue from FIFO */
  132 
  133 #define WB_TXSTATE_RESET        0x00000000      /* 000 - reset */
  134 #define WB_TXSTATE_FETCH        0x00100000      /* 001 - fetching descriptor */
  135 #define WB_TXSTATE_WAITEND      0x00200000      /* 010 - wait for tx end */
  136 #define WB_TXSTATE_READING      0x00300000      /* 011 - read and enqueue */
  137 #define WB_TXSTATE_RSVD         0x00400000      /* 100 - reserved */
  138 #define WB_TXSTATE_SETUP        0x00500000      /* 101 - setup packet */
  139 #define WB_TXSTATE_SUSPEND      0x00600000      /* 110 - suspend tx */
  140 #define WB_TXSTATE_CLOSE        0x00700000      /* 111 - close tx desc */
  141 
  142 /*
  143  * Network config bits.
  144  */
  145 #define WB_NETCFG_RX_ON         0x00000002
  146 #define WB_NETCFG_RX_ALLPHYS    0x00000008
  147 #define WB_NETCFG_RX_MULTI      0x00000010
  148 #define WB_NETCFG_RX_BROAD      0x00000020
  149 #define WB_NETCFG_RX_RUNT       0x00000040
  150 #define WB_NETCFG_RX_ERR        0x00000080
  151 #define WB_NETCFG_FULLDUPLEX    0x00000200
  152 #define WB_NETCFG_LOOPBACK      0x00000C00
  153 #define WB_NETCFG_TX_ON         0x00002000
  154 #define WB_NETCFG_TX_THRESH     0x001FC000
  155 #define WB_NETCFG_RX_EARLYTHRSH 0x1FE00000
  156 #define WB_NETCFG_100MBPS       0x20000000
  157 #define WB_NETCFG_TX_EARLY_ON   0x40000000
  158 #define WB_NETCFG_RX_EARLY_ON   0x80000000
  159 
  160 /*
  161  * The tx threshold can be adjusted in increments of 32 bytes.
  162  */
  163 #define WB_TXTHRESH(x)          ((x >> 5) << 14)
  164 #define WB_TXTHRESH_CHUNK       32
  165 #define WB_TXTHRESH_INIT        0 /*72*/
  166  
  167 /*
  168  * Interrupt mask bits.
  169  */
  170 #define WB_IMR_TX_OK            0x00000001
  171 #define WB_IMR_TX_IDLE          0x00000002
  172 #define WB_IMR_TX_NOBUF         0x00000004
  173 #define WB_IMR_RX_EARLY         0x00000008
  174 #define WB_IMR_RX_ERR           0x00000010
  175 #define WB_IMR_TX_UNDERRUN      0x00000020
  176 #define WB_IMR_RX_OK            0x00000040
  177 #define WB_IMR_RX_NOBUF         0x00000080
  178 #define WB_IMR_RX_IDLE          0x00000100
  179 #define WB_IMR_TX_EARLY         0x00000400
  180 #define WB_IMR_TIMER_EXPIRED    0x00000800
  181 #define WB_IMR_BUS_ERR          0x00002000
  182 #define WB_IMR_ABNORMAL         0x00008000
  183 #define WB_IMR_NORMAL           0x00010000
  184 
  185 #define WB_INTRS        \
  186         (WB_IMR_RX_OK|WB_IMR_TX_OK|WB_IMR_RX_NOBUF|WB_IMR_RX_ERR|       \
  187         WB_IMR_TX_NOBUF|WB_IMR_TX_UNDERRUN|WB_IMR_BUS_ERR|              \
  188         WB_IMR_ABNORMAL|WB_IMR_NORMAL|WB_IMR_TX_EARLY)
  189 /*
  190  * Serial I/O (EEPROM/ROM) bits.
  191  */
  192 #define WB_SIO_EE_CS            0x00000001      /* EEPROM chip select */
  193 #define WB_SIO_EE_CLK           0x00000002      /* EEPROM clock */
  194 #define WB_SIO_EE_DATAIN        0x00000004      /* EEPROM data output */
  195 #define WB_SIO_EE_DATAOUT       0x00000008      /* EEPROM data input */
  196 #define WB_SIO_ROMDATA4         0x00000010
  197 #define WB_SIO_ROMDATA5         0x00000020
  198 #define WB_SIO_ROMDATA6         0x00000040
  199 #define WB_SIO_ROMDATA7         0x00000080
  200 #define WB_SIO_ROMCTL_WRITE     0x00000200
  201 #define WB_SIO_ROMCTL_READ      0x00000400
  202 #define WB_SIO_EESEL            0x00000800
  203 #define WB_SIO_MII_CLK          0x00010000      /* MDIO clock */
  204 #define WB_SIO_MII_DATAIN       0x00020000      /* MDIO data out */
  205 #define WB_SIO_MII_DIR          0x00040000      /* MDIO dir */
  206 #define WB_SIO_MII_DATAOUT      0x00080000      /* MDIO data in */
  207 
  208 #define WB_EECMD_WRITE          0x140
  209 #define WB_EECMD_READ           0x180
  210 #define WB_EECMD_ERASE          0x1c0
  211 
  212 /*
  213  * Winbond TX/RX descriptor structure.
  214  */
  215 
  216 struct wb_desc {
  217         u_int32_t               wb_status;
  218         u_int32_t               wb_ctl;
  219         u_int32_t               wb_ptr1;
  220         u_int32_t               wb_ptr2;
  221 };
  222 
  223 #define wb_data         wb_ptr1
  224 #define wb_next         wb_ptr2
  225 
  226 #define WB_RXSTAT_CRCERR        0x00000002
  227 #define WB_RXSTAT_DRIBBLE       0x00000004
  228 #define WB_RXSTAT_MIIERR        0x00000008
  229 #define WB_RXSTAT_LATEEVENT     0x00000040
  230 #define WB_RXSTAT_GIANT         0x00000080
  231 #define WB_RXSTAT_LASTFRAG      0x00000100
  232 #define WB_RXSTAT_FIRSTFRAG     0x00000200
  233 #define WB_RXSTAT_MULTICAST     0x00000400
  234 #define WB_RXSTAT_RUNT          0x00000800
  235 #define WB_RXSTAT_RXTYPE        0x00003000
  236 #define WB_RXSTAT_RXERR         0x00008000
  237 #define WB_RXSTAT_RXLEN         0x3FFF0000
  238 #define WB_RXSTAT_RXCMP         0x40000000
  239 #define WB_RXSTAT_OWN           0x80000000
  240 
  241 #define WB_RXBYTES(x)           ((x & WB_RXSTAT_RXLEN) >> 16)
  242 #define WB_RXSTAT (WB_RXSTAT_FIRSTFRAG|WB_RXSTAT_LASTFRAG|WB_RXSTAT_OWN)
  243 
  244 #define WB_RXCTL_BUFLEN1        0x00000FFF
  245 #define WB_RXCTL_BUFLEN2        0x00FFF000
  246 #define WB_RXCTL_RLINK          0x01000000
  247 #define WB_RXCTL_RLAST          0x02000000
  248 
  249 #define WB_TXSTAT_DEFER         0x00000001
  250 #define WB_TXSTAT_UNDERRUN      0x00000002
  251 #define WB_TXSTAT_COLLCNT       0x00000078
  252 #define WB_TXSTAT_SQE           0x00000080
  253 #define WB_TXSTAT_ABORT         0x00000100
  254 #define WB_TXSTAT_LATECOLL      0x00000200
  255 #define WB_TXSTAT_NOCARRIER     0x00000400
  256 #define WB_TXSTAT_CARRLOST      0x00000800
  257 #define WB_TXSTAT_TXERR         0x00001000
  258 #define WB_TXSTAT_OWN           0x80000000
  259 
  260 #define WB_TXCTL_BUFLEN1        0x000007FF
  261 #define WB_TXCTL_BUFLEN2        0x003FF800
  262 #define WB_TXCTL_PAD            0x00800000
  263 #define WB_TXCTL_TLINK          0x01000000
  264 #define WB_TXCTL_TLAST          0x02000000
  265 #define WB_TXCTL_NOCRC          0x08000000
  266 #define WB_TXCTL_FIRSTFRAG      0x20000000
  267 #define WB_TXCTL_LASTFRAG       0x40000000
  268 #define WB_TXCTL_FINT           0x80000000
  269 
  270 #define WB_MAXFRAGS             16
  271 #define WB_RX_LIST_CNT          64
  272 #define WB_TX_LIST_CNT          128
  273 #define WB_MIN_FRAMELEN         60
  274 #define ETHER_ALIGN             2
  275 
  276 /*
  277  * A transmit 'super descriptor' is actually WB_MAXFRAGS regular
  278  * descriptors clumped together. The idea here is to emulate the
  279  * multi-fragment descriptor layout found in devices such as the
  280  * Texas Instruments ThunderLAN and 3Com boomerang and cylone chips.
  281  * The advantage to using this scheme is that it avoids buffer copies.
  282  * The disadvantage is that there's a certain amount of overhead due
  283  * to the fact that each 'fragment' is 16 bytes long. In my tests,
  284  * this limits top speed to about 10.5MB/sec. It should be more like
  285  * 11.5MB/sec. However, the upshot is that you can achieve better
  286  * results on slower machines: a Pentium 200 can pump out packets at
  287  * same speed as a PII 400.
  288  */
  289 struct wb_txdesc {
  290         struct wb_desc          wb_frag[WB_MAXFRAGS];
  291 };
  292 
  293 #define WB_TXNEXT(x)    x->wb_ptr->wb_frag[x->wb_lastdesc].wb_next
  294 #define WB_TXSTATUS(x)  x->wb_ptr->wb_frag[x->wb_lastdesc].wb_status
  295 #define WB_TXCTL(x)     x->wb_ptr->wb_frag[x->wb_lastdesc].wb_ctl
  296 #define WB_TXDATA(x)    x->wb_ptr->wb_frag[x->wb_lastdesc].wb_data
  297 
  298 #define WB_TXOWN(x)     x->wb_ptr->wb_frag[0].wb_status
  299 
  300 #define WB_UNSENT       0x1234
  301 
  302 #define WB_BUFBYTES     (1024 * sizeof(u_int32_t))
  303 
  304 struct wb_buf {
  305         u_int32_t               wb_data[1024];
  306 };
  307 
  308 struct wb_list_data {
  309         struct wb_buf           wb_rxbufs[WB_RX_LIST_CNT];
  310         struct wb_desc          wb_rx_list[WB_RX_LIST_CNT];
  311         struct wb_txdesc        wb_tx_list[WB_TX_LIST_CNT];
  312 };
  313 
  314 struct wb_chain {
  315         struct wb_txdesc        *wb_ptr;
  316         struct mbuf             *wb_mbuf;
  317         struct wb_chain         *wb_nextdesc;
  318         u_int8_t                wb_lastdesc;
  319 };
  320 
  321 struct wb_chain_onefrag {
  322         struct wb_desc          *wb_ptr;
  323         struct mbuf             *wb_mbuf;
  324         void                    *wb_buf;
  325         struct wb_chain_onefrag *wb_nextdesc;
  326         u_int8_t                wb_rlast;
  327 };
  328 
  329 struct wb_chain_data {
  330         u_int8_t                wb_pad[WB_MIN_FRAMELEN];
  331         struct wb_chain_onefrag wb_rx_chain[WB_RX_LIST_CNT];
  332         struct wb_chain         wb_tx_chain[WB_TX_LIST_CNT];
  333 
  334         struct wb_chain_onefrag *wb_rx_head;
  335 
  336         struct wb_chain         *wb_tx_head;
  337         struct wb_chain         *wb_tx_tail;
  338         struct wb_chain         *wb_tx_free;
  339 };
  340 
  341 struct wb_type {
  342         u_int16_t               wb_vid;
  343         u_int16_t               wb_did;
  344         const char              *wb_name;
  345 };
  346 
  347 struct wb_softc {
  348         struct ifnet            *wb_ifp;        /* interface info */
  349         device_t                wb_dev;
  350         device_t                wb_miibus;
  351         struct resource         *wb_res;
  352         struct resource         *wb_irq;
  353         void                    *wb_intrhand;
  354         struct wb_type          *wb_info;       /* Winbond adapter info */
  355         u_int8_t                wb_type;
  356         u_int16_t               wb_txthresh;
  357         int                     wb_cachesize;
  358         int                     wb_timer;
  359         caddr_t                 wb_ldata_ptr;
  360         struct wb_list_data     *wb_ldata;
  361         struct wb_chain_data    wb_cdata;
  362         struct callout          wb_stat_callout;
  363         struct mtx              wb_mtx;
  364 };
  365 
  366 #define WB_LOCK(_sc)            mtx_lock(&(_sc)->wb_mtx)
  367 #define WB_UNLOCK(_sc)          mtx_unlock(&(_sc)->wb_mtx)
  368 #define WB_LOCK_ASSERT(_sc)     mtx_assert(&(_sc)->wb_mtx, MA_OWNED)
  369 
  370 /*
  371  * register space access macros
  372  */
  373 #define CSR_WRITE_4(sc, reg, val)       bus_write_4(sc->wb_res, reg, val)
  374 #define CSR_WRITE_2(sc, reg, val)       bus_write_2(sc->wb_res, reg, val)
  375 #define CSR_WRITE_1(sc, reg, val)       bus_write_1(sc->wb_res, reg, val)
  376 
  377 #define CSR_READ_4(sc, reg)             bus_read_4(sc->wb_res, reg)
  378 #define CSR_READ_2(sc, reg)             bus_read_2(sc->wb_res, reg)
  379 #define CSR_READ_1(sc, reg)             bus_read_1(sc->wb_res, reg)
  380 
  381 #define CSR_BARRIER(sc, reg, length, flags)                             \
  382         bus_barrier(sc->wb_res, reg, length, flags)
  383 
  384 #define WB_TIMEOUT              1000
  385 
  386 /*
  387  * General constants that are fun to know.
  388  *
  389  * Winbond PCI vendor ID
  390  */
  391 #define WB_VENDORID             0x1050
  392 
  393 /*
  394  * Winbond device IDs.
  395  */
  396 #define WB_DEVICEID_840F        0x0840
  397 
  398 /*
  399  * Compex vendor ID.
  400  */
  401 #define CP_VENDORID             0x11F6
  402 
  403 /*
  404  * Compex device IDs.
  405  */
  406 #define CP_DEVICEID_RL100       0x2011
  407 
  408 /*
  409  * PCI low memory base and low I/O base register, and
  410  * other PCI registers.
  411  */
  412 
  413 #define WB_PCI_VENDOR_ID        0x00
  414 #define WB_PCI_DEVICE_ID        0x02
  415 #define WB_PCI_COMMAND          0x04
  416 #define WB_PCI_STATUS           0x06
  417 #define WB_PCI_CLASSCODE        0x09
  418 #define WB_PCI_CACHELEN         0x0C
  419 #define WB_PCI_LATENCY_TIMER    0x0D
  420 #define WB_PCI_HEADER_TYPE      0x0E
  421 #define WB_PCI_LOIO             0x10
  422 #define WB_PCI_LOMEM            0x14
  423 #define WB_PCI_BIOSROM          0x30
  424 #define WB_PCI_INTLINE          0x3C
  425 #define WB_PCI_INTPIN           0x3D
  426 #define WB_PCI_MINGNT           0x3E
  427 #define WB_PCI_MINLAT           0x0F
  428 #define WB_PCI_RESETOPT         0x48
  429 #define WB_PCI_EEPROM_DATA      0x4C
  430 
  431 /* power management registers */
  432 #define WB_PCI_CAPID            0xDC /* 8 bits */
  433 #define WB_PCI_NEXTPTR          0xDD /* 8 bits */
  434 #define WB_PCI_PWRMGMTCAP       0xDE /* 16 bits */
  435 #define WB_PCI_PWRMGMTCTRL      0xE0 /* 16 bits */
  436 
  437 #define WB_PSTATE_MASK          0x0003
  438 #define WB_PSTATE_D0            0x0000
  439 #define WB_PSTATE_D1            0x0002
  440 #define WB_PSTATE_D2            0x0002
  441 #define WB_PSTATE_D3            0x0003
  442 #define WB_PME_EN               0x0010
  443 #define WB_PME_STATUS           0x8000

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