target/linux/atheros-2.6/files/drivers/net/ar2313/ar2313.h

   1 #ifndef _AR2313_H_
   2 #define _AR2313_H_
   3
   4 #include <linux/autoconf.h>
   5 #include <asm/bootinfo.h>
   6 #include <ar531x_platform.h>
   7
   8 /*
   9  * probe link timer - 5 secs
  10  */
  11 #define LINK_TIMER    (5*HZ)
  12
  13 #define IS_DMA_TX_INT(X)   (((X) & (DMA_STATUS_TI)) != 0)
  14 #define IS_DMA_RX_INT(X)   (((X) & (DMA_STATUS_RI)) != 0)
  15 #define IS_DRIVER_OWNED(X) (((X) & (DMA_TX_OWN))    == 0)
  16
  17 #define AR2313_TX_TIMEOUT (HZ/4)
  18
  19 /*
  20  * Rings
  21  */
  22 #define DSC_RING_ENTRIES_SIZE   (AR2313_DESCR_ENTRIES * sizeof(struct desc))
  23 #define DSC_NEXT(idx)           ((idx + 1) & (AR2313_DESCR_ENTRIES - 1))
  24
  25 static inline int tx_space (u32 csm, u32 prd)
  26 {
  27         return (csm - prd - 1) & (AR2313_DESCR_ENTRIES - 1);
  28 }
  29
  30 #if MAX_SKB_FRAGS
  31 #define TX_RESERVED     (MAX_SKB_FRAGS+1) /* +1 for message header */
  32 #define tx_ring_full(csm, prd)  (tx_space(csm, prd) <= TX_RESERVED)
  33 #else
  34 #define tx_ring_full            0
  35 #endif
  36
  37 #define AR2313_MBGET            2
  38 #define AR2313_MBSET            3
  39 #define AR2313_PCI_RECONFIG     4
  40 #define AR2313_PCI_DUMP         5
  41 #define AR2313_TEST_PANIC       6
  42 #define AR2313_TEST_NULLPTR     7
  43 #define AR2313_READ_DATA        8
  44 #define AR2313_WRITE_DATA       9
  45 #define AR2313_GET_VERSION      10
  46 #define AR2313_TEST_HANG        11
  47 #define AR2313_SYNC             12
  48
  49
  50 //
  51 // New Combo structure for Both Eth0 AND eth1
  52 //
  53 typedef struct {
  54   volatile unsigned int mac_control;    /* 0x00 */
  55   volatile unsigned int mac_addr[2];    /* 0x04 - 0x08*/
  56   volatile unsigned int mcast_table[2]; /* 0x0c - 0x10 */
  57   volatile unsigned int mii_addr;       /* 0x14 */
  58   volatile unsigned int mii_data;       /* 0x18 */
  59   volatile unsigned int flow_control;   /* 0x1c */
  60   volatile unsigned int vlan_tag;       /* 0x20 */
  61   volatile unsigned int pad[7];         /* 0x24 - 0x3c */
  62   volatile unsigned int ucast_table[8]; /* 0x40-0x5c */
  63
  64 } ETHERNET_STRUCT;
  65
  66 /********************************************************************
  67  * Interrupt controller
  68  ********************************************************************/
  69
  70 typedef struct {
  71   volatile unsigned int wdog_control;           /* 0x08 */
  72   volatile unsigned int wdog_timer;             /* 0x0c */
  73   volatile unsigned int misc_status;            /* 0x10 */
  74   volatile unsigned int misc_mask;              /* 0x14 */
  75   volatile unsigned int global_status;          /* 0x18 */
  76   volatile unsigned int reserved;               /* 0x1c */
  77   volatile unsigned int reset_control;          /* 0x20 */
  78 } INTERRUPT;
  79
  80 /********************************************************************
  81  * DMA controller
  82  ********************************************************************/
  83 typedef struct {
  84   volatile unsigned int bus_mode;        /* 0x00 (CSR0) */
  85   volatile unsigned int xmt_poll;        /* 0x04 (CSR1) */
  86   volatile unsigned int rcv_poll;        /* 0x08 (CSR2) */
  87   volatile unsigned int rcv_base;        /* 0x0c (CSR3) */
  88   volatile unsigned int xmt_base;        /* 0x10 (CSR4) */
  89   volatile unsigned int status;          /* 0x14 (CSR5) */
  90   volatile unsigned int control;         /* 0x18 (CSR6) */
  91   volatile unsigned int intr_ena;        /* 0x1c (CSR7) */
  92   volatile unsigned int rcv_missed;      /* 0x20 (CSR8) */
  93   volatile unsigned int reserved[11];    /* 0x24-0x4c (CSR9-19) */
  94   volatile unsigned int cur_tx_buf_addr; /* 0x50 (CSR20) */
  95   volatile unsigned int cur_rx_buf_addr; /* 0x50 (CSR21) */
  96 } DMA;
  97
  98 /*
  99  * Struct private for the Sibyte.
 100  *
 101  * Elements are grouped so variables used by the tx handling goes
 102  * together, and will go into the same cache lines etc. in order to
 103  * avoid cache line contention between the rx and tx handling on SMP.
 104  *
 105  * Frequently accessed variables are put at the beginning of the
 106  * struct to help the compiler generate better/shorter code.
 107  */
 108 struct ar2313_private
 109 {
 110         struct net_device *dev;
 111         int                     version;
 112         u32                     mb[2];
 113
 114         volatile ETHERNET_STRUCT        *phy_regs;
 115         volatile ETHERNET_STRUCT        *eth_regs;
 116         volatile DMA                    *dma_regs;
 117         volatile u32                    *int_regs;
 118         struct ar531x_eth *cfg;
 119
 120         spinlock_t lock;        /* Serialise access to device */
 121
 122         /*
 123          * RX and TX descriptors, must be adjacent
 124          */
 125         ar2313_descr_t          *rx_ring;
 126         ar2313_descr_t          *tx_ring;
 127
 128
 129         struct sk_buff          **rx_skb;
 130         struct sk_buff          **tx_skb;
 131
 132         /*
 133          * RX elements
 134          */
 135         u32                     rx_skbprd;
 136         u32                     cur_rx;
 137
 138         /*
 139          * TX elements
 140          */
 141         u32                     tx_prd;
 142         u32                     tx_csm;
 143
 144         /*
 145          * Misc elements
 146          */
 147         int                     board_idx;
 148         char                    name[48];
 149         struct net_device_stats stats;
 150         struct {
 151             u32 address;
 152             u32 length;
 153             char *mapping;
 154         } desc;
 155
 156
 157         struct timer_list link_timer;
 158         unsigned short phy;  /* merlot phy = 1,  samsung phy = 0x1f */
 159         unsigned short mac;
 160         unsigned short link; /* 0 - link down,  1 - link up */
 161         u16 phyData;
 162
 163         struct tasklet_struct rx_tasklet;
 164         int unloading;
 165 };
 166
 167
 168 /*
 169  * Prototypes
 170  */
 171 static int  ar2313_init(struct net_device *dev);
 172 #ifdef TX_TIMEOUT
 173 static void ar2313_tx_timeout(struct net_device *dev);
 174 #endif
 175 #if 0
 176 static void ar2313_multicast_list(struct net_device *dev);
 177 #endif
 178 static int ar2313_restart(struct net_device *dev);
 179 #if DEBUG
 180 static void  ar2313_dump_regs(struct net_device *dev);
 181 #endif
 182 static void ar2313_load_rx_ring(struct net_device *dev, int bufs);
 183 static irqreturn_t ar2313_interrupt(int irq, void *dev_id);
 184 static int  ar2313_open(struct net_device *dev);
 185 static int  ar2313_start_xmit(struct sk_buff *skb, struct net_device *dev);
 186 static int  ar2313_close(struct net_device *dev);
 187 static int  ar2313_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd);
 188 static void ar2313_init_cleanup(struct net_device *dev);
 189 static int  ar2313_setup_timer(struct net_device *dev);
 190 static void ar2313_link_timer_fn(unsigned long data);
 191 static void ar2313_check_link(struct net_device *dev);
 192 static struct net_device_stats *ar2313_get_stats(struct net_device *dev);
 193 #endif /* _AR2313_H_ */