bcm63xx_iudma.h

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#ifndef BCM63XX_IUDMA_H_
#define BCM63XX_IUDMA_H_

#include <linux/types.h>

/*
 * rx/tx dma descriptor
 */
struct bcm_enet_desc {
    u32 len_stat;
    u32 address;
};

/* control */
#define DMADESC_LENGTH_SHIFT    16
#define DMADESC_LENGTH_MASK (0xfff << DMADESC_LENGTH_SHIFT)
#define DMADESC_OWNER_MASK  (1 << 15)
#define DMADESC_EOP_MASK    (1 << 14)
#define DMADESC_SOP_MASK    (1 << 13)
#define DMADESC_ESOP_MASK   (DMADESC_EOP_MASK | DMADESC_SOP_MASK)
#define DMADESC_WRAP_MASK   (1 << 12)
#define DMADESC_USB_NOZERO_MASK (1 << 1)
#define DMADESC_USB_ZERO_MASK   (1 << 0)

/* status */
#define DMADESC_UNDER_MASK  (1 << 9)
#define DMADESC_APPEND_CRC  (1 << 8)
#define DMADESC_OVSIZE_MASK (1 << 4)
#define DMADESC_RXER_MASK   (1 << 2)
#define DMADESC_CRC_MASK    (1 << 1)
#define DMADESC_OV_MASK     (1 << 0)
#define DMADESC_ERR_MASK    (DMADESC_UNDER_MASK | \
                DMADESC_OVSIZE_MASK | \
                DMADESC_RXER_MASK | \
                DMADESC_CRC_MASK | \
                DMADESC_OV_MASK)

#endif /* ! BCM63XX_IUDMA_H_ */