Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 413 insertions, 0 deletions

diff --git a/drivers/net/wireless/i82586.h b/drivers/net/wireless/i82586.h
new file mode 100644
index 000000000000..5f65b250646f
--- /dev/null
+++ b/drivers/net/wireless/i82586.h
@@ -0,0 +1,413 @@
+/*
+ * Intel 82586 IEEE 802.3 Ethernet LAN Coprocessor.
+ *
+ * See:
+ *      Intel Microcommunications 1991
+ *      p1-1 to p1-37
+ *      Intel order No. 231658
+ *      ISBN 1-55512-119-5
+ *
+ *     Unfortunately, the above chapter mentions neither
+ * the System Configuration Pointer (SCP) nor the
+ * Intermediate System Configuration Pointer (ISCP),
+ * so we probably need to look elsewhere for the
+ * whole story -- some recommend the "Intel LAN
+ * Components manual" but I have neither a copy
+ * nor a full reference.  But "elsewhere" may be
+ * in the same publication...
+ *     The description of a later device, the
+ * "82596CA High-Performance 32-Bit Local Area Network
+ * Coprocessor", (ibid. p1-38 to p1-109) does mention
+ * the SCP and ISCP and also has an i82586 compatibility
+ * mode.  Even more useful is "AP-235 An 82586 Data Link
+ * Driver" (ibid. p1-337 to p1-417).
+ */
+
+#define I82586_MEMZ     (64 * 1024)
+
+#define I82586_SCP_ADDR (I82586_MEMZ - sizeof(scp_t))
+
+#define ADDR_LEN        6
+#define I82586NULL      0xFFFF
+
+#define toff(t,p,f)     (unsigned short)((void *)(&((t *)((void *)0 + (p)))->f) - (void *)0)
+
+/*
+ * System Configuration Pointer (SCP).
+ */
+typedef struct scp_t    scp_t;
+struct scp_t
+{
+        unsigned short  scp_sysbus;     /* 82586 bus width:     */
+#define         SCP_SY_16BBUS   (0x0 << 0)      /* 16 bits */
+#define         SCP_SY_8BBUS    (0x1 << 0)      /*  8 bits. */
+        unsigned short  scp_junk[2];    /* Unused */
+        unsigned short  scp_iscpl;      /* lower 16 bits of ISCP_ADDR */
+        unsigned short  scp_iscph;      /* upper 16 bits of ISCP_ADDR */
+};
+
+/*
+ * Intermediate System Configuration Pointer (ISCP).
+ */
+typedef struct iscp_t   iscp_t;
+struct iscp_t
+{
+        unsigned short  iscp_busy;      /* set by CPU before first CA,  */
+                                        /* cleared by 82586 after read. */
+        unsigned short  iscp_offset;    /* offset of SCB                */
+        unsigned short  iscp_basel;     /* base of SCB                  */
+        unsigned short  iscp_baseh;     /*  "                           */
+};
+
+/*
+ * System Control Block (SCB).
+ *      The 82586 writes its status to scb_status and then
+ *      raises an interrupt to alert the CPU.
+ *      The CPU writes a command to scb_command and
+ *      then issues a Channel Attention (CA) to alert the 82586.
+ */
+typedef struct scb_t    scb_t;
+struct scb_t
+{
+        unsigned short  scb_status;     /* Status of 82586              */
+#define         SCB_ST_INT      (0xF << 12)     /* Some of:             */
+#define         SCB_ST_CX       (0x1 << 15)     /* Cmd completed        */
+#define         SCB_ST_FR       (0x1 << 14)     /* Frame received       */
+#define         SCB_ST_CNA      (0x1 << 13)     /* Cmd unit not active  */
+#define         SCB_ST_RNR      (0x1 << 12)     /* Rcv unit not ready   */
+#define         SCB_ST_JUNK0    (0x1 << 11)     /* 0                    */
+#define         SCB_ST_CUS      (0x7 <<  8)     /* Cmd unit status      */
+#define                 SCB_ST_CUS_IDLE (0 << 8)        /* Idle         */
+#define                 SCB_ST_CUS_SUSP (1 << 8)        /* Suspended    */
+#define                 SCB_ST_CUS_ACTV (2 << 8)        /* Active       */
+#define         SCB_ST_JUNK1    (0x1 <<  7)     /* 0                    */
+#define         SCB_ST_RUS      (0x7 <<  4)     /* Rcv unit status      */
+#define                 SCB_ST_RUS_IDLE (0 << 4)        /* Idle         */
+#define                 SCB_ST_RUS_SUSP (1 << 4)        /* Suspended    */
+#define                 SCB_ST_RUS_NRES (2 << 4)        /* No resources */
+#define                 SCB_ST_RUS_RDY  (4 << 4)        /* Ready        */
+        unsigned short  scb_command;    /* Next command                 */
+#define         SCB_CMD_ACK_CX  (0x1 << 15)     /* Ack cmd completion   */
+#define         SCB_CMD_ACK_FR  (0x1 << 14)     /* Ack frame received   */
+#define         SCB_CMD_ACK_CNA (0x1 << 13)     /* Ack CU not active    */
+#define         SCB_CMD_ACK_RNR (0x1 << 12)     /* Ack RU not ready     */
+#define         SCB_CMD_JUNKX   (0x1 << 11)     /* Unused               */
+#define         SCB_CMD_CUC     (0x7 <<  8)     /* Command Unit command */
+#define                 SCB_CMD_CUC_NOP (0 << 8)        /* Nop          */
+#define                 SCB_CMD_CUC_GO  (1 << 8)        /* Start cbl_offset */
+#define                 SCB_CMD_CUC_RES (2 << 8)        /* Resume execution */
+#define                 SCB_CMD_CUC_SUS (3 << 8)        /* Suspend   "  */
+#define                 SCB_CMD_CUC_ABT (4 << 8)        /* Abort     "  */
+#define         SCB_CMD_RESET   (0x1 <<  7)     /* Reset chip (hardware) */
+#define         SCB_CMD_RUC     (0x7 <<  4)     /* Receive Unit command */
+#define                 SCB_CMD_RUC_NOP (0 << 4)        /* Nop          */
+#define                 SCB_CMD_RUC_GO  (1 << 4)        /* Start rfa_offset */
+#define                 SCB_CMD_RUC_RES (2 << 4)        /* Resume reception */
+#define                 SCB_CMD_RUC_SUS (3 << 4)        /* Suspend   "  */
+#define                 SCB_CMD_RUC_ABT (4 << 4)        /* Abort     "  */
+        unsigned short  scb_cbl_offset; /* Offset of first command unit */
+                                        /* Action Command               */
+        unsigned short  scb_rfa_offset; /* Offset of first Receive      */
+                                        /* Frame Descriptor in the      */
+                                        /* Receive Frame Area           */
+        unsigned short  scb_crcerrs;    /* Properly aligned frames      */
+                                        /* received with a CRC error    */
+        unsigned short  scb_alnerrs;    /* Misaligned frames received   */
+                                        /* with a CRC error             */
+        unsigned short  scb_rscerrs;    /* Frames lost due to no space  */
+        unsigned short  scb_ovrnerrs;   /* Frames lost due to slow bus  */
+};
+
+#define scboff(p,f)     toff(scb_t, p, f)
+
+/*
+ * The eight Action Commands.
+ */
+typedef enum acmd_e     acmd_e;
+enum acmd_e
+{
+        acmd_nop        = 0,    /* Do nothing                           */
+        acmd_ia_setup   = 1,    /* Load an (ethernet) address into the  */
+                                /* 82586                                */
+        acmd_configure  = 2,    /* Update the 82586 operating parameters */
+        acmd_mc_setup   = 3,    /* Load a list of (ethernet) multicast  */
+                                /* addresses into the 82586             */
+        acmd_transmit   = 4,    /* Transmit a frame                     */
+        acmd_tdr        = 5,    /* Perform a Time Domain Reflectometer  */
+                                /* test on the serial link              */
+        acmd_dump       = 6,    /* Copy 82586 registers to memory       */
+        acmd_diagnose   = 7,    /* Run an internal self test            */
+};
+
+/*
+ * Generic Action Command header.
+ */
+typedef struct ach_t    ach_t;
+struct ach_t
+{
+        unsigned short  ac_status;              /* Command status:      */
+#define         AC_SFLD_C       (0x1 << 15)     /* Command completed    */
+#define         AC_SFLD_B       (0x1 << 14)     /* Busy executing       */
+#define         AC_SFLD_OK      (0x1 << 13)     /* Completed error free */
+#define         AC_SFLD_A       (0x1 << 12)     /* Command aborted      */
+#define         AC_SFLD_FAIL    (0x1 << 11)     /* Selftest failed      */
+#define         AC_SFLD_S10     (0x1 << 10)     /* No carrier sense     */
+                                                /* during transmission  */
+#define         AC_SFLD_S9      (0x1 <<  9)     /* Tx unsuccessful:     */
+                                                /* (stopped) lost CTS   */
+#define         AC_SFLD_S8      (0x1 <<  8)     /* Tx unsuccessful:     */
+                                                /* (stopped) slow DMA   */
+#define         AC_SFLD_S7      (0x1 <<  7)     /* Tx deferred:         */
+                                                /* other link traffic   */
+#define         AC_SFLD_S6      (0x1 <<  6)     /* Heart Beat: collision */
+                                                /* detect after last tx */
+#define         AC_SFLD_S5      (0x1 <<  5)     /* Tx stopped:          */
+                                                /* excessive collisions */
+#define         AC_SFLD_MAXCOL  (0xF <<  0)     /* Collision count      */
+        unsigned short  ac_command;             /* Command specifier:   */
+#define         AC_CFLD_EL      (0x1 << 15)     /* End of command list  */
+#define         AC_CFLD_S       (0x1 << 14)     /* Suspend on completion */
+#define         AC_CFLD_I       (0x1 << 13)     /* Interrupt on completion */
+#define         AC_CFLD_CMD     (0x7 <<  0)     /* acmd_e               */
+        unsigned short  ac_link;                /* Next Action Command  */
+};
+
+#define acoff(p,f)      toff(ach_t, p, f)
+
+/*
+ * The Nop Action Command.
+ */
+typedef struct ac_nop_t ac_nop_t;
+struct ac_nop_t
+{
+        ach_t   nop_h;
+};
+
+/*
+ * The IA-Setup Action Command.
+ */
+typedef struct ac_ias_t ac_ias_t;
+struct ac_ias_t
+{
+        ach_t           ias_h;
+        unsigned char   ias_addr[ADDR_LEN]; /* The (ethernet) address   */
+};
+
+/*
+ * The Configure Action Command.
+ */
+typedef struct ac_cfg_t ac_cfg_t;
+struct ac_cfg_t
+{
+        ach_t           cfg_h;
+        unsigned char   cfg_byte_cnt;   /* Size foll data: 4-12 */
+#define AC_CFG_BYTE_CNT(v)      (((v) & 0xF) << 0)
+        unsigned char   cfg_fifolim;    /* FIFO threshold       */
+#define AC_CFG_FIFOLIM(v)       (((v) & 0xF) << 0)
+        unsigned char   cfg_byte8;
+#define AC_CFG_SAV_BF(v)        (((v) & 0x1) << 7)      /* Save rxd bad frames  */
+#define AC_CFG_SRDY(v)          (((v) & 0x1) << 6)      /* SRDY/ARDY pin means  */
+                                                        /* external sync.       */
+        unsigned char   cfg_byte9;
+#define AC_CFG_ELPBCK(v)        (((v) & 0x1) << 7)      /* External loopback    */
+#define AC_CFG_ILPBCK(v)        (((v) & 0x1) << 6)      /* Internal loopback    */
+#define AC_CFG_PRELEN(v)        (((v) & 0x3) << 4)      /* Preamble length      */
+#define         AC_CFG_PLEN_2           0               /*  2 bytes     */
+#define         AC_CFG_PLEN_4           1               /*  4 bytes     */
+#define         AC_CFG_PLEN_8           2               /*  8 bytes     */
+#define         AC_CFG_PLEN_16          3               /* 16 bytes     */
+#define AC_CFG_ALOC(v)          (((v) & 0x1) << 3)      /* Addr/len data is     */
+                                                        /* explicit in buffers  */
+#define AC_CFG_ADDRLEN(v)       (((v) & 0x7) << 0)      /* Bytes per address    */
+        unsigned char   cfg_byte10;
+#define AC_CFG_BOFMET(v)        (((v) & 0x1) << 7)      /* Use alternate expo.  */
+                                                        /* backoff method       */
+#define AC_CFG_ACR(v)           (((v) & 0x7) << 4)      /* Accelerated cont. res. */
+#define AC_CFG_LINPRIO(v)       (((v) & 0x7) << 0)      /* Linear priority      */
+        unsigned char   cfg_ifs;        /* Interframe spacing           */
+        unsigned char   cfg_slotl;      /* Slot time (low byte)         */
+        unsigned char   cfg_byte13;
+#define AC_CFG_RETRYNUM(v)      (((v) & 0xF) << 4)      /* Max. collision retry */
+#define AC_CFG_SLTTMHI(v)       (((v) & 0x7) << 0)      /* Slot time (high bits) */
+        unsigned char   cfg_byte14;
+#define AC_CFG_FLGPAD(v)        (((v) & 0x1) << 7)      /* Pad with HDLC flags  */
+#define AC_CFG_BTSTF(v)         (((v) & 0x1) << 6)      /* Do HDLC bitstuffing  */
+#define AC_CFG_CRC16(v)         (((v) & 0x1) << 5)      /* 16 bit CCITT CRC     */
+#define AC_CFG_NCRC(v)          (((v) & 0x1) << 4)      /* Insert no CRC        */
+#define AC_CFG_TNCRS(v)         (((v) & 0x1) << 3)      /* Tx even if no carrier */
+#define AC_CFG_MANCH(v)         (((v) & 0x1) << 2)      /* Manchester coding    */
+#define AC_CFG_BCDIS(v)         (((v) & 0x1) << 1)      /* Disable broadcast    */
+#define AC_CFG_PRM(v)           (((v) & 0x1) << 0)      /* Promiscuous mode     */
+        unsigned char   cfg_byte15;
+#define AC_CFG_ICDS(v)          (((v) & 0x1) << 7)      /* Internal collision   */
+                                                        /* detect source        */
+#define AC_CFG_CDTF(v)          (((v) & 0x7) << 4)      /* Collision detect     */
+                                                        /* filter in bit times  */
+#define AC_CFG_ICSS(v)          (((v) & 0x1) << 3)      /* Internal carrier     */
+                                                        /* sense source         */
+#define AC_CFG_CSTF(v)          (((v) & 0x7) << 0)      /* Carrier sense        */
+                                                        /* filter in bit times  */
+        unsigned short  cfg_min_frm_len;
+#define AC_CFG_MNFRM(v)         (((v) & 0xFF) << 0)     /* Min. bytes/frame (<= 255) */
+};
+
+/*
+ * The MC-Setup Action Command.
+ */
+typedef struct ac_mcs_t ac_mcs_t;
+struct ac_mcs_t
+{
+        ach_t           mcs_h;
+        unsigned short  mcs_cnt;        /* No. of bytes of MC addresses */
+#if 0
+        unsigned char   mcs_data[ADDR_LEN]; /* The first MC address ..  */
+        ...
+#endif
+};
+
+#define I82586_MAX_MULTICAST_ADDRESSES  128     /* Hardware hashed filter */
+
+/*
+ * The Transmit Action Command.
+ */
+typedef struct ac_tx_t  ac_tx_t;
+struct ac_tx_t
+{
+        ach_t           tx_h;
+        unsigned short  tx_tbd_offset;  /* Address of list of buffers.  */
+#if     0
+Linux packets are passed down with the destination MAC address
+and length/type field already prepended to the data,
+so we do not need to insert it.  Consistent with this
+we must also set the AC_CFG_ALOC(..) flag during the
+ac_cfg_t action command.
+        unsigned char   tx_addr[ADDR_LEN]; /* The frame dest. address   */
+        unsigned short  tx_length;      /* The frame length             */
+#endif  /* 0 */
+};
+
+/*
+ * The Time Domain Reflectometer Action Command.
+ */
+typedef struct ac_tdr_t ac_tdr_t;
+struct ac_tdr_t
+{
+        ach_t           tdr_h;
+        unsigned short  tdr_result;     /* Result.      */
+#define         AC_TDR_LNK_OK   (0x1 << 15)     /* No link problem      */
+#define         AC_TDR_XCVR_PRB (0x1 << 14)     /* Txcvr cable problem  */
+#define         AC_TDR_ET_OPN   (0x1 << 13)     /* Open on the link     */
+#define         AC_TDR_ET_SRT   (0x1 << 12)     /* Short on the link    */
+#define         AC_TDR_TIME     (0x7FF << 0)    /* Distance to problem  */
+                                                /* site in transmit     */
+                                                /* clock cycles         */
+};
+
+/*
+ * The Dump Action Command.
+ */
+typedef struct ac_dmp_t ac_dmp_t;
+struct ac_dmp_t
+{
+        ach_t           dmp_h;
+        unsigned short  dmp_offset;     /* Result.      */
+};
+
+/*
+ * Size of the result of the dump command.
+ */
+#define DUMPBYTES       170
+
+/*
+ * The Diagnose Action Command.
+ */
+typedef struct ac_dgn_t ac_dgn_t;
+struct ac_dgn_t
+{
+        ach_t           dgn_h;
+};
+
+/*
+ * Transmit Buffer Descriptor (TBD).
+ */
+typedef struct tbd_t    tbd_t;
+struct tbd_t
+{
+        unsigned short  tbd_status;             /* Written by the CPU   */
+#define         TBD_STATUS_EOF  (0x1 << 15)     /* This TBD is the      */
+                                                /* last for this frame  */
+#define         TBD_STATUS_ACNT (0x3FFF << 0)   /* Actual count of data */
+                                                /* bytes in this buffer */
+        unsigned short  tbd_next_bd_offset;     /* Next in list         */
+        unsigned short  tbd_bufl;               /* Buffer address (low) */
+        unsigned short  tbd_bufh;               /*    "      "  (high)  */
+};
+
+/*
+ * Receive Buffer Descriptor (RBD).
+ */
+typedef struct rbd_t    rbd_t;
+struct rbd_t
+{
+        unsigned short  rbd_status;             /* Written by the 82586 */
+#define         RBD_STATUS_EOF  (0x1 << 15)     /* This RBD is the      */
+                                                /* last for this frame  */
+#define         RBD_STATUS_F    (0x1 << 14)     /* ACNT field is valid  */
+#define         RBD_STATUS_ACNT (0x3FFF << 0)   /* Actual no. of data   */
+                                                /* bytes in this buffer */
+        unsigned short  rbd_next_rbd_offset;    /* Next rbd in list     */
+        unsigned short  rbd_bufl;               /* Data pointer (low)   */
+        unsigned short  rbd_bufh;               /*  "      "    (high)  */
+        unsigned short  rbd_el_size;            /* EL+Data buf. size    */
+#define         RBD_EL  (0x1 << 15)             /* This BD is the       */
+                                                /* last in the list     */
+#define         RBD_SIZE (0x3FFF << 0)          /* No. of bytes the     */
+                                                /* buffer can hold      */
+};
+
+#define rbdoff(p,f)     toff(rbd_t, p, f)
+
+/*
+ * Frame Descriptor (FD).
+ */
+typedef struct fd_t     fd_t;
+struct fd_t
+{
+        unsigned short  fd_status;              /* Written by the 82586 */
+#define         FD_STATUS_C     (0x1 << 15)     /* Completed storing frame */
+#define         FD_STATUS_B     (0x1 << 14)     /* FD was consumed by RU */
+#define         FD_STATUS_OK    (0x1 << 13)     /* Frame rxd successfully */
+#define         FD_STATUS_S11   (0x1 << 11)     /* CRC error            */
+#define         FD_STATUS_S10   (0x1 << 10)     /* Alignment error      */
+#define         FD_STATUS_S9    (0x1 <<  9)     /* Ran out of resources */
+#define         FD_STATUS_S8    (0x1 <<  8)     /* Rx DMA overrun       */
+#define         FD_STATUS_S7    (0x1 <<  7)     /* Frame too short      */
+#define         FD_STATUS_S6    (0x1 <<  6)     /* No EOF flag          */
+        unsigned short  fd_command;             /* Command              */
+#define         FD_COMMAND_EL   (0x1 << 15)     /* Last FD in list      */
+#define         FD_COMMAND_S    (0x1 << 14)     /* Suspend RU after rx  */
+        unsigned short  fd_link_offset;         /* Next FD              */
+        unsigned short  fd_rbd_offset;          /* First RBD (data)     */
+                                                /* Prepared by CPU,     */
+                                                /* updated by 82586     */
+#if     0
+I think the rest is unused since we
+have set AC_CFG_ALOC(..).  However, just
+in case, we leave the space.
+#endif  /* 0 */
+        unsigned char   fd_dest[ADDR_LEN];      /* Destination address  */
+                                                /* Written by 82586     */
+        unsigned char   fd_src[ADDR_LEN];       /* Source address       */
+                                                /* Written by 82586     */
+        unsigned short  fd_length;              /* Frame length or type */
+                                                /* Written by 82586     */
+};
+
+#define fdoff(p,f)      toff(fd_t, p, f)
+
+/*
+ * This software may only be used and distributed
+ * according to the terms of the GNU General Public License.
+ *
+ * For more details, see wavelan.c.
+ */