/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _CM4000_H_
#define _CM4000_H_
#include <linux/types.h>
#include <linux/ioctl.h>
#define MAX_ATR 33
#define CM4000_MAX_DEV 4
/* those two structures are passed via ioctl() from/to userspace. They are
* used by existing userspace programs, so I kepth the awkward "bIFSD" naming
* not to break compilation of userspace apps. -HW */
typedef struct atreq {
__s32 atr_len;
unsigned char atr[64];
__s32 power_act;
unsigned char bIFSD;
unsigned char bIFSC;
} atreq_t;
/* what is particularly stupid in the original driver is the arch-dependent
* member sizes. This leads to CONFIG_COMPAT breakage, since 32bit userspace
* will lay out the structure members differently than the 64bit kernel.
*
* I've changed "ptsreq.protocol" from "unsigned long" to "__u32".
* On 32bit this will make no difference. With 64bit kernels, it will make
* 32bit apps work, too.
*/
typedef struct ptsreq {
__u32 protocol; /*T=0: 2^0, T=1: 2^1*/
unsigned char flags;
unsigned char pts1;
unsigned char pts2;
unsigned char pts3;
} ptsreq_t;
#define CM_IOC_MAGIC 'c'
#define CM_IOC_MAXNR 255
#define CM_IOCGSTATUS _IOR (CM_IOC_MAGIC, 0, unsigned char *)
#define CM_IOCGATR _IOWR(CM_IOC_MAGIC, 1, atreq_t *)
#define CM_IOCSPTS _IOW (CM_IOC_MAGIC, 2, ptsreq_t *)
#define CM_IOCSRDR _IO (CM_IOC_MAGIC, 3)
#define CM_IOCARDOFF _IO (CM_IOC_MAGIC, 4)
#define CM_IOSDBGLVL _IOW(CM_IOC_MAGIC, 250, int*)
/* card and device states */
#define CM_CARD_INSERTED 0x01
#define CM_CARD_POWERED 0x02
#define CM_ATR_PRESENT 0x04
#define CM_ATR_VALID 0x08
#define CM_STATE_VALID 0x0f
/* extra info only from CM4000 */
#define CM_NO_READER 0x10
#define CM_BAD_CARD 0x20
#endif /* _CM4000_H_ */