Harald Welte | 3aa901d | 2018-08-13 18:32:36 +0200 | [diff] [blame] | 1 | #pragma once |
| 2 | |
| 3 | #include <osmocom/core/linuxlist.h> |
| 4 | |
| 5 | struct card_reader_slot; |
| 6 | |
| 7 | struct card_reader_driver_ops { |
| 8 | /* probe system for card readers */ |
| 9 | void (*probe)(void *ctx); |
| 10 | /* open a given slot, attempt to reset/start the card */ |
| 11 | int (*open_slot)(struct card_reader_slot *slot); |
| 12 | /* close a given slot, power down the card */ |
| 13 | void (*close_slot)(struct card_reader_slot *slot); |
| 14 | /* transceive an APDU */ |
| 15 | int (*transceive_apdu)(struct card_reader_slot *slot); |
| 16 | }; |
| 17 | |
| 18 | struct card_reader_driver { |
| 19 | /* global list of drivers */ |
| 20 | struct llist_head list; |
| 21 | /* name of the driver */ |
| 22 | char *name; |
| 23 | const struct card_reader_driver_ops *ops; |
| 24 | }; |
| 25 | |
| 26 | struct card_reader { |
| 27 | /* global list of card readers */ |
| 28 | struct llist_head list; |
| 29 | /* name of this reader */ |
| 30 | char *name; |
| 31 | /* driver providing access to this reader */ |
| 32 | const struct card_reader_driver *drv; |
| 33 | void *drv_handle; |
| 34 | /* list of card slots for this reader */ |
| 35 | struct llist_head slots; |
| 36 | }; |
| 37 | |
| 38 | enum card_slot_state { |
| 39 | CARD_SLOT_OFF, |
| 40 | CARD_SLOT_OPEN, |
| 41 | }; |
| 42 | |
| 43 | struct card_reader_slot { |
| 44 | /* links to card_reader.slots */ |
| 45 | struct llist_head list; |
| 46 | /* back-pointer to reader serving this slot */ |
| 47 | struct card_reader *reader; |
| 48 | /* slot number */ |
| 49 | unsigned int num; |
| 50 | /* state in which the slot is */ |
| 51 | enum card_slot_state state; |
| 52 | }; |
| 53 | |
| 54 | |
| 55 | struct card_reader *card_reader_alloc(void *ctx, const char *name, |
| 56 | const struct card_reader_driver *drv, void *drv_handle); |
| 57 | struct card_reader_slot *card_reader_slot_alloc(struct card_reader *cr, unsigned int slot_num); |
| 58 | |
| 59 | void card_reader_driver_register(struct card_reader_driver *drv); |
| 60 | void card_readers_probe(void *ctx); |