1 /* 2 * drivers/s390/cio/chp.h 3 * 4 * Copyright IBM Corp. 2007 5 * Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com> 6 */ 7 8 #ifndef S390_CHP_H 9 #define S390_CHP_H S390_CHP_H 10 11 #include <linux/types.h> 12 #include <linux/device.h> 13 #include <asm/chpid.h> 14 #include "chsc.h" 15 16 #define CHP_STATUS_STANDBY 0 17 #define CHP_STATUS_CONFIGURED 1 18 #define CHP_STATUS_RESERVED 2 19 #define CHP_STATUS_NOT_RECOGNIZED 3 20 21 static inline int chp_test_bit(u8 *bitmap, int num) 22 { 23 int byte = num >> 3; 24 int mask = 128 >> (num & 7); 25 26 return (bitmap[byte] & mask) ? 1 : 0; 27 } 28 29 30 struct channel_path { 31 struct chp_id chpid; 32 int state; 33 struct channel_path_desc desc; 34 /* Channel-measurement related stuff: */ 35 int cmg; 36 int shared; 37 void *cmg_chars; 38 struct device dev; 39 }; 40 41 int chp_get_status(struct chp_id chpid); 42 u8 chp_get_sch_opm(struct subchannel *sch); 43 int chp_is_registered(struct chp_id chpid); 44 void *chp_get_chp_desc(struct chp_id chpid); 45 void chp_process_crw(int id, int available); 46 void chp_remove_cmg_attr(struct channel_path *chp); 47 int chp_add_cmg_attr(struct channel_path *chp); 48 int chp_new(struct chp_id chpid); 49 void chp_cfg_schedule(struct chp_id chpid, int configure); 50 void chp_cfg_cancel_deconfigure(struct chp_id chpid); 51 int chp_info_get_status(struct chp_id chpid); 52 53 #endif /* S390_CHP_H */ 54