mantis_pcmcia.c
3.44 KB
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/*
Mantis PCI bridge driver
Copyright (C) Manu Abraham (abraham.manu@gmail.com)
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/kernel.h>
#include <linux/signal.h>
#include <linux/sched.h>
#include <linux/interrupt.h>
#include <asm/io.h>
#include "dmxdev.h"
#include "dvbdev.h"
#include "dvb_demux.h"
#include "dvb_frontend.h"
#include "dvb_net.h"
#include "mantis_common.h"
#include "mantis_link.h" /* temporary due to physical layer stuff */
#include "mantis_reg.h"
/*
* If Slot state is already PLUG_IN event and we are called
* again, definitely it is jitter alone
*/
void mantis_event_cam_plugin(struct mantis_ca *ca)
{
struct mantis_pci *mantis = ca->ca_priv;
u32 gpif_irqcfg;
if (ca->slot_state == MODULE_XTRACTED) {
dprintk(MANTIS_DEBUG, 1, "Event: CAM Plugged IN: Adapter(%d) Slot(0)", mantis->num);
udelay(50);
mmwrite(0xda000000, MANTIS_CARD_RESET);
gpif_irqcfg = mmread(MANTIS_GPIF_IRQCFG);
gpif_irqcfg |= MANTIS_MASK_PLUGOUT;
gpif_irqcfg &= ~MANTIS_MASK_PLUGIN;
mmwrite(gpif_irqcfg, MANTIS_GPIF_IRQCFG);
udelay(500);
ca->slot_state = MODULE_INSERTED;
}
udelay(100);
}
/*
* If Slot state is already UN_PLUG event and we are called
* again, definitely it is jitter alone
*/
void mantis_event_cam_unplug(struct mantis_ca *ca)
{
struct mantis_pci *mantis = ca->ca_priv;
u32 gpif_irqcfg;
if (ca->slot_state == MODULE_INSERTED) {
dprintk(MANTIS_DEBUG, 1, "Event: CAM Unplugged: Adapter(%d) Slot(0)", mantis->num);
udelay(50);
mmwrite(0x00da0000, MANTIS_CARD_RESET);
gpif_irqcfg = mmread(MANTIS_GPIF_IRQCFG);
gpif_irqcfg |= MANTIS_MASK_PLUGIN;
gpif_irqcfg &= ~MANTIS_MASK_PLUGOUT;
mmwrite(gpif_irqcfg, MANTIS_GPIF_IRQCFG);
udelay(500);
ca->slot_state = MODULE_XTRACTED;
}
udelay(100);
}
int mantis_pcmcia_init(struct mantis_ca *ca)
{
struct mantis_pci *mantis = ca->ca_priv;
u32 gpif_stat, card_stat;
mantis_unmask_ints(mantis, MANTIS_INT_IRQ0);
gpif_stat = mmread(MANTIS_GPIF_STATUS);
card_stat = mmread(MANTIS_GPIF_IRQCFG);
if (gpif_stat & MANTIS_GPIF_DETSTAT) {
dprintk(MANTIS_DEBUG, 1, "CAM found on Adapter(%d) Slot(0)", mantis->num);
mmwrite(card_stat | MANTIS_MASK_PLUGOUT, MANTIS_GPIF_IRQCFG);
ca->slot_state = MODULE_INSERTED;
dvb_ca_en50221_camchange_irq(&ca->en50221,
0,
DVB_CA_EN50221_CAMCHANGE_INSERTED);
} else {
dprintk(MANTIS_DEBUG, 1, "Empty Slot on Adapter(%d) Slot(0)", mantis->num);
mmwrite(card_stat | MANTIS_MASK_PLUGIN, MANTIS_GPIF_IRQCFG);
ca->slot_state = MODULE_XTRACTED;
dvb_ca_en50221_camchange_irq(&ca->en50221,
0,
DVB_CA_EN50221_CAMCHANGE_REMOVED);
}
return 0;
}
void mantis_pcmcia_exit(struct mantis_ca *ca)
{
struct mantis_pci *mantis = ca->ca_priv;
mmwrite(mmread(MANTIS_GPIF_STATUS) & (~MANTIS_CARD_PLUGOUT | ~MANTIS_CARD_PLUGIN), MANTIS_GPIF_STATUS);
mantis_mask_ints(mantis, MANTIS_INT_IRQ0);
}