include/asm-powerpc/cpm.h

   1 #ifndef __CPM_H
   2 #define __CPM_H
   3
   4 #include <linux/compiler.h>
   5 #include <linux/types.h>
   6
   7 /* Buffer descriptors used by many of the CPM protocols. */
   8 typedef struct cpm_buf_desc {
   9         ushort  cbd_sc;         /* Status and Control */
  10         ushort  cbd_datlen;     /* Data length in buffer */
  11         uint    cbd_bufaddr;    /* Buffer address in host memory */
  12 } cbd_t;
  13
  14 /* Buffer descriptor control/status used by serial
  15  */
  16
  17 #define BD_SC_EMPTY     (0x8000)        /* Receive is empty */
  18 #define BD_SC_READY     (0x8000)        /* Transmit is ready */
  19 #define BD_SC_WRAP      (0x2000)        /* Last buffer descriptor */
  20 #define BD_SC_INTRPT    (0x1000)        /* Interrupt on change */
  21 #define BD_SC_LAST      (0x0800)        /* Last buffer in frame */
  22 #define BD_SC_TC        (0x0400)        /* Transmit CRC */
  23 #define BD_SC_CM        (0x0200)        /* Continous mode */
  24 #define BD_SC_ID        (0x0100)        /* Rec'd too many idles */
  25 #define BD_SC_P         (0x0100)        /* xmt preamble */
  26 #define BD_SC_BR        (0x0020)        /* Break received */
  27 #define BD_SC_FR        (0x0010)        /* Framing error */
  28 #define BD_SC_PR        (0x0008)        /* Parity error */
  29 #define BD_SC_NAK       (0x0004)        /* NAK - did not respond */
  30 #define BD_SC_OV        (0x0002)        /* Overrun */
  31 #define BD_SC_UN        (0x0002)        /* Underrun */
  32 #define BD_SC_CD        (0x0001)        /* */
  33 #define BD_SC_CL        (0x0001)        /* Collision */
  34
  35 /* Buffer descriptor control/status used by Ethernet receive.
  36  * Common to SCC and FCC.
  37  */
  38 #define BD_ENET_RX_EMPTY        (0x8000)
  39 #define BD_ENET_RX_WRAP         (0x2000)
  40 #define BD_ENET_RX_INTR         (0x1000)
  41 #define BD_ENET_RX_LAST         (0x0800)
  42 #define BD_ENET_RX_FIRST        (0x0400)
  43 #define BD_ENET_RX_MISS         (0x0100)
  44 #define BD_ENET_RX_BC           (0x0080)        /* FCC Only */
  45 #define BD_ENET_RX_MC           (0x0040)        /* FCC Only */
  46 #define BD_ENET_RX_LG           (0x0020)
  47 #define BD_ENET_RX_NO           (0x0010)
  48 #define BD_ENET_RX_SH           (0x0008)
  49 #define BD_ENET_RX_CR           (0x0004)
  50 #define BD_ENET_RX_OV           (0x0002)
  51 #define BD_ENET_RX_CL           (0x0001)
  52 #define BD_ENET_RX_STATS        (0x01ff)        /* All status bits */
  53
  54 /* Buffer descriptor control/status used by Ethernet transmit.
  55  * Common to SCC and FCC.
  56  */
  57 #define BD_ENET_TX_READY        (0x8000)
  58 #define BD_ENET_TX_PAD          (0x4000)
  59 #define BD_ENET_TX_WRAP         (0x2000)
  60 #define BD_ENET_TX_INTR         (0x1000)
  61 #define BD_ENET_TX_LAST         (0x0800)
  62 #define BD_ENET_TX_TC           (0x0400)
  63 #define BD_ENET_TX_DEF          (0x0200)
  64 #define BD_ENET_TX_HB           (0x0100)
  65 #define BD_ENET_TX_LC           (0x0080)
  66 #define BD_ENET_TX_RL           (0x0040)
  67 #define BD_ENET_TX_RCMASK       (0x003c)
  68 #define BD_ENET_TX_UN           (0x0002)
  69 #define BD_ENET_TX_CSL          (0x0001)
  70 #define BD_ENET_TX_STATS        (0x03ff)        /* All status bits */
  71
  72 /* Buffer descriptor control/status used by Transparent mode SCC.
  73  */
  74 #define BD_SCC_TX_LAST          (0x0800)
  75
  76 /* Buffer descriptor control/status used by I2C.
  77  */
  78 #define BD_I2C_START            (0x0400)
  79
  80 int cpm_muram_init(void);
  81 unsigned long cpm_muram_alloc(unsigned long size, unsigned long align);
  82 int cpm_muram_free(unsigned long offset);
  83 unsigned long cpm_muram_alloc_fixed(unsigned long offset, unsigned long size);
  84 void __iomem *cpm_muram_addr(unsigned long offset);
  85 dma_addr_t cpm_muram_dma(void __iomem *addr);
  86 int cpm_command(u32 command, u8 opcode);
  87
  88 #endif