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 #include "platform.h"
   8
   9 /*
  10  * probe link timer - 5 secs
  11  */
  12 #define LINK_TIMER    (5*HZ)
  13
  14 #define IS_DMA_TX_INT(X)   (((X) & (DMA_STATUS_TI)) != 0)
  15 #define IS_DMA_RX_INT(X)   (((X) & (DMA_STATUS_RI)) != 0)
  16 #define IS_DRIVER_OWNED(X) (((X) & (DMA_TX_OWN))    == 0)
  17
  18 #define AR2313_TX_TIMEOUT (HZ/4)
  19
  20 /*
  21  * Rings
  22  */
  23 #define DSC_RING_ENTRIES_SIZE   (AR2313_DESCR_ENTRIES * sizeof(struct desc))
  24 #define DSC_NEXT(idx)           ((idx + 1) & (AR2313_DESCR_ENTRIES - 1))
  25
  26 static inline int tx_space (u32 csm, u32 prd)
  27 {
  28         return (csm - prd - 1) & (AR2313_DESCR_ENTRIES - 1);
  29 }
  30
  31 #if MAX_SKB_FRAGS
  32 #define TX_RESERVED     (MAX_SKB_FRAGS+1) /* +1 for message header */
  33 #define tx_ring_full(csm, prd)  (tx_space(csm, prd) <= TX_RESERVED)
  34 #else
  35 #define tx_ring_full            0
  36 #endif
  37
  38 #define AR2313_MBGET            2
  39 #define AR2313_MBSET            3
  40 #define AR2313_PCI_RECONFIG     4
  41 #define AR2313_PCI_DUMP         5
  42 #define AR2313_TEST_PANIC       6
  43 #define AR2313_TEST_NULLPTR     7
  44 #define AR2313_READ_DATA        8
  45 #define AR2313_WRITE_DATA       9
  46 #define AR2313_GET_VERSION      10
  47 #define AR2313_TEST_HANG        11
  48 #define AR2313_SYNC             12
  49
  50
  51 struct ar2313_cmd {
  52         u32     cmd;
  53         u32     address;      /* virtual address of image */
  54         u32     length;       /* size of image to download */
  55         u32     mailbox;      /* mailbox to get/set */
  56         u32     data[2];      /* contents of mailbox to read/write */
  57 };
  58
  59
  60 /*
  61  * Struct private for the Sibyte.
  62  *
  63  * Elements are grouped so variables used by the tx handling goes
  64  * together, and will go into the same cache lines etc. in order to
  65  * avoid cache line contention between the rx and tx handling on SMP.
  66  *
  67  * Frequently accessed variables are put at the beginning of the
  68  * struct to help the compiler generate better/shorter code.
  69  */
  70 struct ar2313_private
  71 {
  72         struct net_device *dev;
  73         int                     version;
  74         u32                     mb[2];
  75
  76         volatile ETHERNET_STRUCT        *phy_regs;
  77         volatile ETHERNET_STRUCT        *eth_regs;
  78         volatile DMA                    *dma_regs;
  79         volatile u32                    *int_regs;
  80         struct ar531x_eth *cfg;
  81
  82         spinlock_t lock;        /* Serialise access to device */
  83
  84         /*
  85          * RX and TX descriptors, must be adjacent
  86          */
  87         ar2313_descr_t          *rx_ring;
  88         ar2313_descr_t          *tx_ring;
  89
  90
  91         struct sk_buff          **rx_skb;
  92         struct sk_buff          **tx_skb;
  93
  94         /*
  95          * RX elements
  96          */
  97         u32                     rx_skbprd;
  98         u32                     cur_rx;
  99
 100         /*
 101          * TX elements
 102          */
 103         u32                     tx_prd;
 104         u32                     tx_csm;
 105
 106         /*
 107          * Misc elements
 108          */
 109         int                     board_idx;
 110         char                    name[48];
 111         struct net_device_stats stats;
 112         struct {
 113             u32 address;
 114             u32 length;
 115             char *mapping;
 116         } desc;
 117
 118
 119         struct timer_list link_timer;
 120         unsigned short phy;  /* merlot phy = 1,  samsung phy = 0x1f */
 121         unsigned short mac;
 122         unsigned short link; /* 0 - link down,  1 - link up */
 123         u16 phyData;
 124
 125         struct tasklet_struct rx_tasklet;
 126         int unloading;
 127 };
 128
 129
 130 /*
 131  * Prototypes
 132  */
 133 static int  ar2313_init(struct net_device *dev);
 134 #ifdef TX_TIMEOUT
 135 static void ar2313_tx_timeout(struct net_device *dev);
 136 #endif
 137 #if 0
 138 static void ar2313_multicast_list(struct net_device *dev);
 139 #endif
 140 static int ar2313_restart(struct net_device *dev);
 141 #if DEBUG
 142 static void  ar2313_dump_regs(struct net_device *dev);
 143 #endif
 144 static void ar2313_load_rx_ring(struct net_device *dev, int bufs);
 145 static irqreturn_t ar2313_interrupt(int irq, void *dev_id);
 146 static int  ar2313_open(struct net_device *dev);
 147 static int  ar2313_start_xmit(struct sk_buff *skb, struct net_device *dev);
 148 static int  ar2313_close(struct net_device *dev);
 149 static int  ar2313_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd);
 150 static void ar2313_init_cleanup(struct net_device *dev);
 151 static int  ar2313_setup_timer(struct net_device *dev);
 152 static void ar2313_link_timer_fn(unsigned long data);
 153 static void ar2313_check_link(struct net_device *dev);
 154 static struct net_device_stats *ar2313_get_stats(struct net_device *dev);
 155 #endif /* _AR2313_H_ */