diff options
Diffstat (limited to 'drivers/s390/cio/chp.h')
| -rw-r--r-- | drivers/s390/cio/chp.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/drivers/s390/cio/chp.h b/drivers/s390/cio/chp.h new file mode 100644 index 00000000000..65286563c59 --- /dev/null +++ b/drivers/s390/cio/chp.h @@ -0,0 +1,53 @@ +/* + * drivers/s390/cio/chp.h + * + * Copyright IBM Corp. 2007 + * Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com> + */ + +#ifndef S390_CHP_H +#define S390_CHP_H S390_CHP_H + +#include <linux/types.h> +#include <linux/device.h> +#include <asm/chpid.h> +#include "chsc.h" + +#define CHP_STATUS_STANDBY 0 +#define CHP_STATUS_CONFIGURED 1 +#define CHP_STATUS_RESERVED 2 +#define CHP_STATUS_NOT_RECOGNIZED 3 + +static inline int chp_test_bit(u8 *bitmap, int num) +{ + int byte = num >> 3; + int mask = 128 >> (num & 7); + + return (bitmap[byte] & mask) ? 1 : 0; +} + + +struct channel_path { + struct chp_id chpid; + int state; + struct channel_path_desc desc; + /* Channel-measurement related stuff: */ + int cmg; + int shared; + void *cmg_chars; + struct device dev; +}; + +int chp_get_status(struct chp_id chpid); +u8 chp_get_sch_opm(struct subchannel *sch); +int chp_is_registered(struct chp_id chpid); +void *chp_get_chp_desc(struct chp_id chpid); +void chp_process_crw(int id, int available); +void chp_remove_cmg_attr(struct channel_path *chp); +int chp_add_cmg_attr(struct channel_path *chp); +int chp_new(struct chp_id chpid); +void chp_cfg_schedule(struct chp_id chpid, int configure); +void chp_cfg_cancel_deconfigure(struct chp_id chpid); +int chp_info_get_status(struct chp_id chpid); + +#endif /* S390_CHP_H */ |