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 "platform.h"
   7
   8 extern unsigned long mips_machtype;
   9
  10 #undef ETHERNET_BASE
  11 #define ETHERNET_BASE ar_eth_base
  12 #define ETHERNET_SIZE 0x00100000
  13 #define ETHERNET_MACS 2
  14
  15 #undef DMA_BASE
  16 #define DMA_BASE      ar_dma_base
  17 #define DMA_SIZE      0x00100000
  18
  19
  20 /*
  21  * probe link timer - 5 secs
  22  */
  23 #define LINK_TIMER    (5*HZ)
  24
  25 /*
  26  * Interrupt register base address
  27  */
  28 #define INTERRUPT_BASE    PHYS_TO_K1(ar_int_base)
  29
  30 /*
  31  * Reset Register
  32  */
  33 #define AR531X_RESET    (AR531X_RESETTMR + 0x0020)
  34 #define RESET_SYSTEM         0x00000001      /* cold reset full system */
  35 #define RESET_PROC           0x00000002      /* cold reset MIPS core */
  36 #define RESET_WLAN0          0x00000004      /* cold reset WLAN MAC and BB */
  37 #define RESET_EPHY0          0x00000008      /* cold reset ENET0 phy */
  38 #define RESET_EPHY1          0x00000010      /* cold reset ENET1 phy */
  39 #define RESET_ENET0          0x00000020      /* cold reset ENET0 mac */
  40 #define RESET_ENET1          0x00000040      /* cold reset ENET1 mac */
  41
  42 #define IS_DMA_TX_INT(X)   (((X) & (DMA_STATUS_TI)) != 0)
  43 #define IS_DMA_RX_INT(X)   (((X) & (DMA_STATUS_RI)) != 0)
  44 #define IS_DRIVER_OWNED(X) (((X) & (DMA_TX_OWN))    == 0)
  45
  46 #ifndef K1_TO_PHYS
  47 // hack
  48 #define K1_TO_PHYS(x)   (((unsigned int)(x)) & 0x1FFFFFFF)        /* kseg1 to physical */
  49 #endif
  50
  51 #ifndef PHYS_TO_K1
  52 // hack
  53 #define  PHYS_TO_K1(x)   (((unsigned int)(x)) | 0xA0000000)   /* physical to kseg1 */
  54 #endif
  55
  56 #define AR2313_TX_TIMEOUT (HZ/4)
  57
  58 /*
  59  * Rings
  60  */
  61 #define DSC_RING_ENTRIES_SIZE   (AR2313_DESCR_ENTRIES * sizeof(struct desc))
  62 #define DSC_NEXT(idx)           ((idx + 1) & (AR2313_DESCR_ENTRIES - 1))
  63
  64 static inline int tx_space (u32 csm, u32 prd)
  65 {
  66         return (csm - prd - 1) & (AR2313_DESCR_ENTRIES - 1);
  67 }
  68
  69 #if MAX_SKB_FRAGS
  70 #define TX_RESERVED     (MAX_SKB_FRAGS+1) /* +1 for message header */
  71 #define tx_ring_full(csm, prd)  (tx_space(csm, prd) <= TX_RESERVED)
  72 #else
  73 #define tx_ring_full            0
  74 #endif
  75
  76 #define AR2313_MBGET            2
  77 #define AR2313_MBSET            3
  78 #define AR2313_PCI_RECONFIG     4
  79 #define AR2313_PCI_DUMP         5
  80 #define AR2313_TEST_PANIC       6
  81 #define AR2313_TEST_NULLPTR     7
  82 #define AR2313_READ_DATA        8
  83 #define AR2313_WRITE_DATA       9
  84 #define AR2313_GET_VERSION      10
  85 #define AR2313_TEST_HANG        11
  86 #define AR2313_SYNC             12
  87
  88
  89 struct ar2313_cmd {
  90         u32     cmd;
  91         u32     address;      /* virtual address of image */
  92         u32     length;       /* size of image to download */
  93         u32     mailbox;      /* mailbox to get/set */
  94         u32     data[2];      /* contents of mailbox to read/write */
  95 };
  96
  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        *eth_regs;
 115         volatile DMA                    *dma_regs;
 116         volatile u32                    *int_regs;
 117
 118         spinlock_t lock;        /* Serialise access to device */
 119
 120         /*
 121          * RX and TX descriptors, must be adjacent
 122          */
 123         ar2313_descr_t          *rx_ring;
 124         ar2313_descr_t          *tx_ring;
 125
 126
 127         struct sk_buff          **rx_skb;
 128         struct sk_buff          **tx_skb;
 129
 130         /*
 131          * RX elements
 132          */
 133         u32                     rx_skbprd;
 134         u32                     cur_rx;
 135
 136         /*
 137          * TX elements
 138          */
 139         u32                     tx_prd;
 140         u32                     tx_csm;
 141
 142         /*
 143          * Misc elements
 144          */
 145         int                     board_idx;
 146         char                    name[48];
 147         struct net_device_stats stats;
 148         struct {
 149             u32 address;
 150             u32 length;
 151             char *mapping;
 152         } desc;
 153
 154
 155         struct timer_list link_timer;
 156         unsigned short phy;  /* merlot phy = 1,  samsung phy = 0x1f */
 157         unsigned short mac;
 158         unsigned short link; /* 0 - link down,  1 - link up */
 159         u16 phyData;
 160
 161         struct tasklet_struct rx_tasklet;
 162         int unloading;
 163 };
 164
 165
 166 /*
 167  * Prototypes
 168  */
 169 static int  ar2313_init(struct net_device *dev);
 170 #ifdef TX_TIMEOUT
 171 static void ar2313_tx_timeout(struct net_device *dev);
 172 #endif
 173 #if 0
 174 static void ar2313_multicast_list(struct net_device *dev);
 175 #endif
 176 static int ar2313_restart(struct net_device *dev);
 177 #if DEBUG
 178 static void  ar2313_dump_regs(struct net_device *dev);
 179 #endif
 180 static void ar2313_load_rx_ring(struct net_device *dev, int bufs);
 181 static irqreturn_t ar2313_interrupt(int irq, void *dev_id);
 182 static int  ar2313_open(struct net_device *dev);
 183 static int  ar2313_start_xmit(struct sk_buff *skb, struct net_device *dev);
 184 static int  ar2313_close(struct net_device *dev);
 185 static int  ar2313_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd);
 186 static void ar2313_init_cleanup(struct net_device *dev);
 187 static int  ar2313_setup_timer(struct net_device *dev);
 188 static void ar2313_link_timer_fn(unsigned long data);
 189 static void ar2313_check_link(struct net_device *dev);
 190 static struct net_device_stats *ar2313_get_stats(struct net_device *dev);
 191 #endif /* _AR2313_H_ */