1 files changed, 293 insertions, 0 deletions

diff --git a/drivers/net/3c505.h b/drivers/net/3c505.h
new file mode 100644
index 000000000000..77dfeedff815
--- /dev/null
+++ b/drivers/net/3c505.h
@@ -0,0 +1,293 @@
+/*****************************************************************
+ *
+ *  defines for 3Com Etherlink Plus adapter
+ *
+ *****************************************************************/
+
+#define ELP_DMA       6
+#define ELP_RX_PCBS   4
+#define ELP_MAX_CARDS 4
+
+/*
+ * I/O register offsets
+ */
+#define PORT_COMMAND    0x00    /* read/write, 8-bit */
+#define PORT_STATUS     0x02    /* read only, 8-bit */
+#define PORT_AUXDMA     0x02    /* write only, 8-bit */
+#define PORT_DATA       0x04    /* read/write, 16-bit */
+#define PORT_CONTROL    0x06    /* read/write, 8-bit */
+
+#define ELP_IO_EXTENT   0x10    /* size of used IO registers */
+
+/*
+ * host control registers bits
+ */
+#define ATTN    0x80    /* attention */
+#define FLSH    0x40    /* flush data register */
+#define DMAE    0x20    /* DMA enable */
+#define DIR     0x10    /* direction */
+#define TCEN    0x08    /* terminal count interrupt enable */
+#define CMDE    0x04    /* command register interrupt enable */
+#define HSF2    0x02    /* host status flag 2 */
+#define HSF1    0x01    /* host status flag 1 */
+
+/*
+ * combinations of HSF flags used for PCB transmission
+ */
+#define HSF_PCB_ACK     HSF1
+#define HSF_PCB_NAK     HSF2
+#define HSF_PCB_END     (HSF2|HSF1)
+#define HSF_PCB_MASK    (HSF2|HSF1)
+
+/*
+ * host status register bits
+ */
+#define HRDY    0x80    /* data register ready */
+#define HCRE    0x40    /* command register empty */
+#define ACRF    0x20    /* adapter command register full */
+/* #define DIR  0x10    direction - same as in control register */
+#define DONE    0x08    /* DMA done */
+#define ASF3    0x04    /* adapter status flag 3 */
+#define ASF2    0x02    /* adapter status flag 2 */
+#define ASF1    0x01    /* adapter status flag 1 */
+
+/*
+ * combinations of ASF flags used for PCB reception
+ */
+#define ASF_PCB_ACK     ASF1
+#define ASF_PCB_NAK     ASF2
+#define ASF_PCB_END     (ASF2|ASF1)
+#define ASF_PCB_MASK    (ASF2|ASF1)
+
+/*
+ * host aux DMA register bits
+ */
+#define DMA_BRST        0x01    /* DMA burst */
+
+/*
+ * maximum amount of data allowed in a PCB
+ */
+#define MAX_PCB_DATA    62
+
+/*****************************************************************
+ *
+ *  timeout value
+ *      this is a rough value used for loops to stop them from 
+ *      locking up the whole machine in the case of failure or
+ *      error conditions
+ *
+ *****************************************************************/
+
+#define TIMEOUT 300
+
+/*****************************************************************
+ *
+ * PCB commands
+ *
+ *****************************************************************/
+
+enum {
+  /*
+   * host PCB commands
+   */
+  CMD_CONFIGURE_ADAPTER_MEMORY  = 0x01,
+  CMD_CONFIGURE_82586           = 0x02,
+  CMD_STATION_ADDRESS           = 0x03,
+  CMD_DMA_DOWNLOAD              = 0x04,
+  CMD_DMA_UPLOAD                = 0x05,
+  CMD_PIO_DOWNLOAD              = 0x06,
+  CMD_PIO_UPLOAD                = 0x07,
+  CMD_RECEIVE_PACKET            = 0x08,
+  CMD_TRANSMIT_PACKET           = 0x09,
+  CMD_NETWORK_STATISTICS        = 0x0a,
+  CMD_LOAD_MULTICAST_LIST       = 0x0b,
+  CMD_CLEAR_PROGRAM             = 0x0c,
+  CMD_DOWNLOAD_PROGRAM          = 0x0d,
+  CMD_EXECUTE_PROGRAM           = 0x0e,
+  CMD_SELF_TEST                 = 0x0f,
+  CMD_SET_STATION_ADDRESS       = 0x10,
+  CMD_ADAPTER_INFO              = 0x11,
+  NUM_TRANSMIT_CMDS,
+
+  /*
+   * adapter PCB commands
+   */
+  CMD_CONFIGURE_ADAPTER_RESPONSE        = 0x31,
+  CMD_CONFIGURE_82586_RESPONSE          = 0x32,
+  CMD_ADDRESS_RESPONSE                  = 0x33,
+  CMD_DOWNLOAD_DATA_REQUEST             = 0x34,
+  CMD_UPLOAD_DATA_REQUEST               = 0x35,
+  CMD_RECEIVE_PACKET_COMPLETE           = 0x38,
+  CMD_TRANSMIT_PACKET_COMPLETE          = 0x39,
+  CMD_NETWORK_STATISTICS_RESPONSE       = 0x3a,
+  CMD_LOAD_MULTICAST_RESPONSE           = 0x3b,
+  CMD_CLEAR_PROGRAM_RESPONSE            = 0x3c,
+  CMD_DOWNLOAD_PROGRAM_RESPONSE         = 0x3d,
+  CMD_EXECUTE_RESPONSE                  = 0x3e,
+  CMD_SELF_TEST_RESPONSE                = 0x3f,
+  CMD_SET_ADDRESS_RESPONSE              = 0x40,
+  CMD_ADAPTER_INFO_RESPONSE             = 0x41
+};
+
+/* Definitions for the PCB data structure */
+
+/* Data units */
+typedef unsigned char         byte;
+typedef unsigned short int    word;
+typedef unsigned long int     dword;
+
+/* Data structures */
+struct Memconf {
+        word    cmd_q,
+                rcv_q,
+                mcast,
+                frame,
+                rcv_b,
+                progs;
+};
+
+struct Rcv_pkt {
+        word    buf_ofs,
+                buf_seg,
+                buf_len,
+                timeout;
+};
+
+struct Xmit_pkt {
+        word    buf_ofs,
+                buf_seg,
+                pkt_len;
+};
+
+struct Rcv_resp {
+        word    buf_ofs,
+                buf_seg,
+                buf_len,
+                pkt_len,
+                timeout,
+                status;
+        dword   timetag;
+};
+
+struct Xmit_resp {
+        word    buf_ofs,
+                buf_seg,
+                c_stat,
+                status;
+};
+
+
+struct Netstat {
+        dword   tot_recv,
+                tot_xmit;
+        word    err_CRC,
+                err_align,
+                err_res,
+                err_ovrrun;
+};
+
+
+struct Selftest {
+        word    error;
+        union {
+                word ROM_cksum;
+                struct {
+                        word ofs, seg;
+                } RAM;
+                word i82586;
+        } failure;
+};
+
+struct Info {
+        byte    minor_vers,
+                major_vers;
+        word    ROM_cksum,
+                RAM_sz,
+                free_ofs,
+                free_seg;
+};
+
+struct Memdump {
+       word size,
+            off,
+            seg;
+};
+
+/*
+Primary Command Block. The most important data structure. All communication
+between the host and the adapter is done with these. (Except for the actual
+Ethernet data, which has different packaging.)
+*/
+typedef struct {
+        byte    command;
+        byte    length;
+        union   {
+                struct Memconf          memconf;
+                word                    configure;
+                struct Rcv_pkt          rcv_pkt;
+                struct Xmit_pkt         xmit_pkt;
+                byte                    multicast[10][6];
+                byte                    eth_addr[6];
+                byte                    failed;
+                struct Rcv_resp         rcv_resp;
+                struct Xmit_resp        xmit_resp;
+                struct Netstat          netstat;
+                struct Selftest         selftest;
+                struct Info             info;
+                struct Memdump          memdump;
+                byte                    raw[62];
+        } data;
+} pcb_struct;
+
+/* These defines for 'configure' */
+#define RECV_STATION    0x00
+#define RECV_BROAD      0x01
+#define RECV_MULTI      0x02
+#define RECV_PROMISC    0x04
+#define NO_LOOPBACK     0x00
+#define INT_LOOPBACK    0x08
+#define EXT_LOOPBACK    0x10
+
+/*****************************************************************
+ *
+ *  structure to hold context information for adapter
+ *
+ *****************************************************************/
+
+#define DMA_BUFFER_SIZE  1600
+#define BACKLOG_SIZE      4
+
+typedef struct {
+        volatile short got[NUM_TRANSMIT_CMDS];  /* flags for
+                                                   command completion */
+        pcb_struct tx_pcb;      /* PCB for foreground sending */
+        pcb_struct rx_pcb;      /* PCB for foreground receiving */
+        pcb_struct itx_pcb;     /* PCB for background sending */
+        pcb_struct irx_pcb;     /* PCB for background receiving */
+        struct net_device_stats stats;
+
+        void *dma_buffer;
+
+        struct {
+                unsigned int length[BACKLOG_SIZE];
+                unsigned int in;
+                unsigned int out;
+        } rx_backlog;
+
+        struct {
+                unsigned int direction;
+                unsigned int length;
+                struct sk_buff *skb;
+                void *target;
+                unsigned long start_time;
+        } current_dma;
+
+        /* flags */
+        unsigned long send_pcb_semaphore;
+        unsigned long dmaing;
+        unsigned long busy;
+
+        unsigned int rx_active;  /* number of receive PCBs */
+        volatile unsigned char hcr_val;  /* what we think the HCR contains */
+        spinlock_t lock;        /* Interrupt v tx lock */
+} elp_device;