drivers/media/pci/mantis/mantis_link.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3         Mantis PCI bridge driver
   4
   5         Copyright (C) Manu Abraham (abraham.manu@gmail.com)
   6
   7 */
   8
   9 #ifndef __MANTIS_LINK_H
  10 #define __MANTIS_LINK_H
  11
  12 #include <linux/mutex.h>
  13 #include <linux/workqueue.h>
  14 #include <media/dvb_ca_en50221.h>
  15
  16 enum mantis_sbuf_status {
  17         MANTIS_SBUF_DATA_AVAIL          = 1,
  18         MANTIS_SBUF_DATA_EMPTY          = 2,
  19         MANTIS_SBUF_DATA_OVFLW          = 3
  20 };
  21
  22 struct mantis_slot {
  23         u32                             timeout;
  24         u32                             slave_cfg;
  25         u32                             bar;
  26 };
  27
  28 /* Physical layer */
  29 enum mantis_slot_state {
  30         MODULE_INSERTED                 = 3,
  31         MODULE_XTRACTED                 = 4
  32 };
  33
  34 struct mantis_ca {
  35         struct mantis_slot              slot[4];
  36
  37         struct work_struct              hif_evm_work;
  38
  39         u32                             hif_event;
  40         wait_queue_head_t               hif_opdone_wq;
  41         wait_queue_head_t               hif_brrdyw_wq;
  42         wait_queue_head_t               hif_data_wq;
  43         wait_queue_head_t               hif_write_wq; /* HIF Write op */
  44
  45         enum mantis_sbuf_status         sbuf_status;
  46
  47         enum mantis_slot_state          slot_state;
  48
  49         void                            *ca_priv;
  50
  51         struct dvb_ca_en50221           en50221;
  52         struct mutex                    ca_lock;
  53 };
  54
  55 /* CA */
  56 extern void mantis_event_cam_plugin(struct mantis_ca *ca);
  57 extern void mantis_event_cam_unplug(struct mantis_ca *ca);
  58 extern int mantis_pcmcia_init(struct mantis_ca *ca);
  59 extern void mantis_pcmcia_exit(struct mantis_ca *ca);
  60 extern int mantis_evmgr_init(struct mantis_ca *ca);
  61 extern void mantis_evmgr_exit(struct mantis_ca *ca);
  62
  63 /* HIF */
  64 extern int mantis_hif_init(struct mantis_ca *ca);
  65 extern void mantis_hif_exit(struct mantis_ca *ca);
  66 extern int mantis_hif_read_mem(struct mantis_ca *ca, u32 addr);
  67 extern int mantis_hif_write_mem(struct mantis_ca *ca, u32 addr, u8 data);
  68 extern int mantis_hif_read_iom(struct mantis_ca *ca, u32 addr);
  69 extern int mantis_hif_write_iom(struct mantis_ca *ca, u32 addr, u8 data);
  70
  71 #endif /* __MANTIS_LINK_H */