LXR linux/drivers/media/pci/mantis/mantis

   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
  39static 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;
  45
  46        gpif_stat = mmread(MANTIS_GPIF_STATUS);
  47
  48        if (gpif_stat & MANTIS_GPIF_DETSTAT) {
  49                if (gpif_stat & MANTIS_CARD_PLUGIN) {
  50                        dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): CAM Plugin", mantis->num);
  51                        mmwrite(0xdada0000, MANTIS_CARD_RESET);
  52                        mantis_event_cam_plugin(ca);
  53                        dvb_ca_en50221_camchange_irq(&ca->en50221,
  54                                                     0,
  55                                                     DVB_CA_EN50221_CAMCHANGE_INSERTED);
  56                }
  57        } else {
  58                if (gpif_stat & MANTIS_CARD_PLUGOUT) {
  59                        dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): CAM Unplug", mantis->num);
  60                        mmwrite(0xdada0000, MANTIS_CARD_RESET);
  61                        mantis_event_cam_unplug(ca);
  62                        dvb_ca_en50221_camchange_irq(&ca->en50221,
  63                                                     0,
  64                                                     DVB_CA_EN50221_CAMCHANGE_REMOVED);
  65                }
  66        }
  67
  68        if (mantis->gpif_status & MANTIS_GPIF_EXTIRQ)
  69                dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Ext IRQ", mantis->num);
  70
  71        if (mantis->gpif_status & MANTIS_SBUF_WSTO)
  72                dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer Timeout", mantis->num);
  73
  74        if (mantis->gpif_status & MANTIS_GPIF_OTHERR)
  75                dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Alignment Error", mantis->num);
  76
  77        if (gpif_stat & MANTIS_SBUF_OVFLW)
  78                dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer Overflow", mantis->num);
  79
  80        if (gpif_stat & MANTIS_GPIF_BRRDY)
  81                dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer Read Ready", mantis->num);
  82
  83        if (gpif_stat & MANTIS_GPIF_INTSTAT)
  84                dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): GPIF IRQ", mantis->num);
  85
  86        if (gpif_stat & MANTIS_SBUF_EMPTY)
  87                dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer Empty", mantis->num);
  88
  89        if (gpif_stat & MANTIS_SBUF_OPDONE) {
  90                dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer operation complete", mantis->num);
  91                ca->sbuf_status = MANTIS_SBUF_DATA_AVAIL;
  92                ca->hif_event = MANTIS_SBUF_OPDONE;
  93                wake_up(&ca->hif_opdone_wq);
  94        }
  95}
  96
  97int mantis_evmgr_init(struct mantis_ca *ca)
  98{
  99        struct mantis_pci *mantis = ca->ca_priv;
 100
 101        dprintk(MANTIS_DEBUG, 1, "Initializing Mantis Host I/F Event manager");
 102        INIT_WORK(&ca->hif_evm_work, mantis_hifevm_work);
 103        mantis_pcmcia_init(ca);
 104        schedule_work(&ca->hif_evm_work);
 105        mantis_hif_init(ca);
 106        return 0;
 107}
 108
 109void mantis_evmgr_exit(struct mantis_ca *ca)
 110{
 111        struct mantis_pci *mantis = ca->ca_priv;
 112
 113        dprintk(MANTIS_DEBUG, 1, "Mantis Host I/F Event manager exiting");
 114        flush_work(&ca->hif_evm_work);
 115        mantis_hif_exit(ca);
 116        mantis_pcmcia_exit(ca);
 117}
 118