drivers/media/dvb/mantis/mantis_evm.c

   1 /*
   2         Mantis PCI bridge driver
   3
   4         Copyright (C) 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 <linux/kernel.h>
  22
  23 #include <linux/signal.h>
  24 #include <linux/sched.h>
  25 #include <linux/interrupt.h>
  26 #include <asm/io.h>
  27
  28 #include "dmxdev.h"
  29 #include "dvbdev.h"
  30 #include "dvb_demux.h"
  31 #include "dvb_frontend.h"
  32 #include "dvb_net.h"
  33
  34 #include "mantis_common.h"
  35 #include "mantis_link.h"
  36 #include "mantis_hif.h"
  37 #include "mantis_reg.h"
  38
  39 static void mantis_hifevm_work(struct work_struct *work)
  40 {
  41         struct mantis_ca *ca = container_of(work, struct mantis_ca, hif_evm_work);
  42         struct mantis_pci *mantis = ca->ca_priv;
  43
  44         u32 gpif_stat, gpif_mask;
  45
  46         gpif_stat = mmread(MANTIS_GPIF_STATUS);
  47         gpif_mask = mmread(MANTIS_GPIF_IRQCFG);
  48
  49         if (gpif_stat & MANTIS_GPIF_DETSTAT) {
  50                 if (gpif_stat & MANTIS_CARD_PLUGIN) {
  51                         dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): CAM Plugin", mantis->num);
  52                         mmwrite(0xdada0000, MANTIS_CARD_RESET);
  53                         mantis_event_cam_plugin(ca);
  54                         dvb_ca_en50221_camchange_irq(&ca->en50221,
  55                                                      0,
  56                                                      DVB_CA_EN50221_CAMCHANGE_INSERTED);
  57                 }
  58         } else {
  59                 if (gpif_stat & MANTIS_CARD_PLUGOUT) {
  60                         dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): CAM Unplug", mantis->num);
  61                         mmwrite(0xdada0000, MANTIS_CARD_RESET);
  62                         mantis_event_cam_unplug(ca);
  63                         dvb_ca_en50221_camchange_irq(&ca->en50221,
  64                                                      0,
  65                                                      DVB_CA_EN50221_CAMCHANGE_REMOVED);
  66                 }
  67         }
  68
  69         if (mantis->gpif_status & MANTIS_GPIF_EXTIRQ)
  70                 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Ext IRQ", mantis->num);
  71
  72         if (mantis->gpif_status & MANTIS_SBUF_WSTO)
  73                 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer Timeout", mantis->num);
  74
  75         if (mantis->gpif_status & MANTIS_GPIF_OTHERR)
  76                 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Alignment Error", mantis->num);
  77
  78         if (gpif_stat & MANTIS_SBUF_OVFLW)
  79                 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer Overflow", mantis->num);
  80
  81         if (gpif_stat & MANTIS_GPIF_BRRDY)
  82                 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer Read Ready", mantis->num);
  83
  84         if (gpif_stat & MANTIS_GPIF_INTSTAT)
  85                 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): GPIF IRQ", mantis->num);
  86
  87         if (gpif_stat & MANTIS_SBUF_EMPTY)
  88                 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer Empty", mantis->num);
  89
  90         if (gpif_stat & MANTIS_SBUF_OPDONE) {
  91                 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer operation complete", mantis->num);
  92                 ca->sbuf_status = MANTIS_SBUF_DATA_AVAIL;
  93                 ca->hif_event = MANTIS_SBUF_OPDONE;
  94                 wake_up(&ca->hif_opdone_wq);
  95         }
  96 }
  97
  98 int mantis_evmgr_init(struct mantis_ca *ca)
  99 {
 100         struct mantis_pci *mantis = ca->ca_priv;
 101
 102         dprintk(MANTIS_DEBUG, 1, "Initializing Mantis Host I/F Event manager");
 103         INIT_WORK(&ca->hif_evm_work, mantis_hifevm_work);
 104         mantis_pcmcia_init(ca);
 105         schedule_work(&ca->hif_evm_work);
 106         mantis_hif_init(ca);
 107         return 0;
 108 }
 109
 110 void mantis_evmgr_exit(struct mantis_ca *ca)
 111 {
 112         struct mantis_pci *mantis = ca->ca_priv;
 113
 114         dprintk(MANTIS_DEBUG, 1, "Mantis Host I/F Event manager exiting");
 115         flush_work_sync(&ca->hif_evm_work);
 116         mantis_hif_exit(ca);
 117         mantis_pcmcia_exit(ca);
 118 }