1 /* 2 * User-space DMA and UIO based Redrapids Pocket Change CardBus driver 3 * 4 * Copyright 2008 Vijay Kumar <vijaykumar@bravegnu.org> 5 * 6 * Part of userspace API. Should be moved to a header file in 7 * include/linux for final version. 8 * 9 */ 10 struct poch_cbuf_header { 11 __s32 group_size_bytes; 12 __s32 group_count; 13 __s32 group_offsets[0]; 14 }; 15 16 struct poch_counters { 17 __u32 fifo_empty; 18 __u32 fifo_overflow; 19 __u32 pll_unlock; 20 }; 21 22 #define POCH_IOC_NUM '9' 23 24 #define POCH_IOC_TRANSFER_START _IO(POCH_IOC_NUM, 0) 25 #define POCH_IOC_TRANSFER_STOP _IO(POCH_IOC_NUM, 1) 26 #define POCH_IOC_GET_COUNTERS _IOR(POCH_IOC_NUM, 2, \ 27 struct poch_counters) 28 #define POCH_IOC_SYNC_GROUP_FOR_USER _IO(POCH_IOC_NUM, 3) 29 #define POCH_IOC_SYNC_GROUP_FOR_DEVICE _IO(POCH_IOC_NUM, 4) 30