drivers/media/dvb/mantis/mantis_evm.c

   1 /*
   2         Mantis PCI bridge driver
   3
   4         Copyright (C) 2005, 2006 Manu Abraham (abraham.manu@gmail.com)
   5
   6         This program is free software; you can redistribute it and/or modify
   7         it under the terms of the GNU General Public License as published by
   8         the Free Software Foundation; either version 2 of the License, or
   9         (at your option) any later version.
  10
  11         This program is distributed in the hope that it will be useful,
  12         but WITHOUT ANY WARRANTY; without even the implied warranty of
  13         MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14         GNU General Public License for more details.
  15
  16         You should have received a copy of the GNU General Public License
  17         along with this program; if not, write to the Free Software
  18         Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19 */
  20
  21 #include "mantis_common.h"
  22 #include "mantis_link.h"
  23 #include "mantis_hif.h"
  24
  25 static void mantis_hifevm_work(struct work_struct *work)
  26 {
  27         struct mantis_ca *ca = container_of(work, struct mantis_ca, hif_evm_work);
  28         struct mantis_pci *mantis = ca->ca_priv;
  29
  30         u32 gpif_stat, gpif_mask;
  31
  32         gpif_stat = mmread(MANTIS_GPIF_STATUS);
  33         gpif_mask = mmread(MANTIS_GPIF_IRQCFG);
  34         if (!((gpif_stat & 0xff) & (gpif_mask & 0xff)))
  35                 return;
  36
  37         if (gpif_stat & MANTIS_GPIF_DETSTAT) {
  38                 if (gpif_stat & MANTIS_CARD_PLUGIN) {
  39                         dprintk(verbose, MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): CAM Plugin", mantis->num);
  40                         mmwrite(0xdada0000, MANTIS_CARD_RESET);
  41                         mantis_event_cam_plugin(ca);
  42                 }
  43         } else {
  44                 if (gpif_stat & MANTIS_CARD_PLUGOUT) {
  45                         dprintk(verbose, MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): CAM Unplug", mantis->num);
  46                         mmwrite(0xdada0000, MANTIS_CARD_RESET);
  47                         mantis_event_cam_unplug(ca);
  48                 }
  49         }
  50
  51         if (gpif_stat & MANTIS_GPIF_EXTIRQ)
  52                 dprintk(verbose, MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Ext IRQ", mantis->num);
  53
  54         if (gpif_stat & MANTIS_SBUF_WSTO)
  55                 dprintk(verbose, MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer Timeout", mantis->num);
  56
  57         if (gpif_stat & MANTIS_GPIF_OTHERR)
  58                 dprintk(verbose, MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Alignment Error", mantis->num);
  59
  60         if (gpif_stat & MANTIS_SBUF_OVFLW)
  61                 dprintk(verbose, MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer Overflow", mantis->num);
  62
  63         if (gpif_stat & MANTIS_GPIF_BRRDY) {
  64                 dprintk(verbose, MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer Read Ready", mantis->num);
  65                 ca->sbuf_status = MANTIS_SBUF_DATA_AVAIL;
  66                 if (ca->hif_job_queue & MANTIS_HIF_MEMRD)
  67                         wake_up(&ca->hif_brrdyw_wq);
  68         }
  69         if (gpif_stat & MANTIS_GPIF_WRACK)
  70                 dprintk(verbose, MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Slave Write ACK", mantis->num);
  71
  72         if (gpif_stat & MANTIS_GPIF_INTSTAT)
  73                 dprintk(verbose, MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): GPIF IRQ", mantis->num);
  74
  75         if (gpif_stat & MANTIS_SBUF_EMPTY)
  76                 dprintk(verbose, MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer Empty", mantis->num);
  77
  78         if (gpif_stat & MANTIS_SBUF_OPDONE) {
  79                 dprintk(verbose, MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer operation complete", mantis->num);
  80                 if (ca->hif_job_queue) {
  81                         wake_up(&ca->hif_opdone_wq);
  82                         ca->hif_event = MANTIS_SBUF_OPDONE;
  83                 }
  84         }
  85 }
  86
  87 int mantis_evmgr_init(struct mantis_ca *ca)
  88 {
  89         struct mantis_pci *mantis = ca->ca_priv;
  90
  91         dprintk(verbose, MANTIS_DEBUG, 1, "Initializing Mantis Host I/F Event manager");
  92         INIT_WORK(&ca->hif_evm_work, mantis_hifevm_work);
  93         mantis_pcmcia_init(ca);
  94         schedule_work(&ca->hif_evm_work);
  95         mantis_hif_init(ca);
  96         return 0;
  97 }
  98
  99 void mantis_evmgr_exit(struct mantis_ca *ca)
 100 {
 101         struct mantis_pci *mantis = ca->ca_priv;
 102
 103         dprintk(verbose, MANTIS_DEBUG, 1, "Mantis Host I/F Event manager exiting");
 104         flush_scheduled_work();
 105         mantis_hif_exit(ca);
 106         mantis_pcmcia_exit(ca);
 107 }