[linux-2.6-block.git] / drivers / media / pci / mantis / mantis_pcmcia.c

/*
	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 <media/dmxdev.h>
#include <media/dvbdev.h>
#include <media/dvb_demux.h>
#include <media/dvb_frontend.h>
#include <media/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);
}
Commit	Line	Data
bc4ed42f MA	1	/*
	2	Mantis PCI bridge driver
	3
8825a097	4	Copyright (C) Manu Abraham (abraham.manu@gmail.com)
bc4ed42f MA	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
b3b96144 MA	21	#include <linux/kernel.h>
b3b96144 MA	22
b3b96144 MA	23	#include <linux/signal.h>
	24	#include <linux/sched.h>
	25	#include <linux/interrupt.h>
b7f080cf	26	#include <asm/io.h>
b3b96144	27
fada1935 MCC	28	#include <media/dmxdev.h>
	29	#include <media/dvbdev.h>
	30	#include <media/dvb_demux.h>
	31	#include <media/dvb_frontend.h>
	32	#include <media/dvb_net.h>
b3b96144	33
bc4ed42f	34	#include "mantis_common.h"
8ce571f5	35	#include "mantis_link.h" /* temporary due to physical layer stuff */
b3b96144	36	#include "mantis_reg.h"
8ce571f5 MA	37
	38	/*
	39	* If Slot state is already PLUG_IN event and we are called
	40	* again, definitely it is jitter alone
	41	*/
	42	void mantis_event_cam_plugin(struct mantis_ca *ca)
	43	{
	44	struct mantis_pci *mantis = ca->ca_priv;
	45
	46	u32 gpif_irqcfg;
	47
	48	if (ca->slot_state == MODULE_XTRACTED) {
b3b96144	49	dprintk(MANTIS_DEBUG, 1, "Event: CAM Plugged IN: Adapter(%d) Slot(0)", mantis->num);
8ce571f5 MA	50	udelay(50);
	51	mmwrite(0xda000000, MANTIS_CARD_RESET);
	52	gpif_irqcfg = mmread(MANTIS_GPIF_IRQCFG);
	53	gpif_irqcfg \|= MANTIS_MASK_PLUGOUT;
	54	gpif_irqcfg &= ~MANTIS_MASK_PLUGIN;
	55	mmwrite(gpif_irqcfg, MANTIS_GPIF_IRQCFG);
	56	udelay(500);
	57	ca->slot_state = MODULE_INSERTED;
	58	}
	59	udelay(100);
	60	}
	61
	62	/*
	63	* If Slot state is already UN_PLUG event and we are called
	64	* again, definitely it is jitter alone
	65	*/
	66	void mantis_event_cam_unplug(struct mantis_ca *ca)
	67	{
	68	struct mantis_pci *mantis = ca->ca_priv;
	69
	70	u32 gpif_irqcfg;
	71
	72	if (ca->slot_state == MODULE_INSERTED) {
b3b96144	73	dprintk(MANTIS_DEBUG, 1, "Event: CAM Unplugged: Adapter(%d) Slot(0)", mantis->num);
8ce571f5 MA	74	udelay(50);
	75	mmwrite(0x00da0000, MANTIS_CARD_RESET);
	76	gpif_irqcfg = mmread(MANTIS_GPIF_IRQCFG);
	77	gpif_irqcfg \|= MANTIS_MASK_PLUGIN;
	78	gpif_irqcfg &= ~MANTIS_MASK_PLUGOUT;
	79	mmwrite(gpif_irqcfg, MANTIS_GPIF_IRQCFG);
	80	udelay(500);
	81	ca->slot_state = MODULE_XTRACTED;
	82	}
	83	udelay(100);
	84	}
bc4ed42f MA	85
	86	int mantis_pcmcia_init(struct mantis_ca *ca)
	87	{
	88	struct mantis_pci *mantis = ca->ca_priv;
	89
8ce571f5 MA	90	u32 gpif_stat, card_stat;
8ce571f5 MA	91
a96762da	92	mantis_unmask_ints(mantis, MANTIS_INT_IRQ0);
8ce571f5 MA	93	gpif_stat = mmread(MANTIS_GPIF_STATUS);
	94	card_stat = mmread(MANTIS_GPIF_IRQCFG);
	95
	96	if (gpif_stat & MANTIS_GPIF_DETSTAT) {
b3b96144	97	dprintk(MANTIS_DEBUG, 1, "CAM found on Adapter(%d) Slot(0)", mantis->num);
8ce571f5 MA	98	mmwrite(card_stat \| MANTIS_MASK_PLUGOUT, MANTIS_GPIF_IRQCFG);
8ce571f5 MA	99	ca->slot_state = MODULE_INSERTED;
86c75c5c SA	100	dvb_ca_en50221_camchange_irq(&ca->en50221,
	101	0,
	102	DVB_CA_EN50221_CAMCHANGE_INSERTED);
8ce571f5	103	} else {
b3b96144	104	dprintk(MANTIS_DEBUG, 1, "Empty Slot on Adapter(%d) Slot(0)", mantis->num);
8ce571f5 MA	105	mmwrite(card_stat \| MANTIS_MASK_PLUGIN, MANTIS_GPIF_IRQCFG);
8ce571f5 MA	106	ca->slot_state = MODULE_XTRACTED;
88a6fa9d MA	107	dvb_ca_en50221_camchange_irq(&ca->en50221,
	108	0,
	109	DVB_CA_EN50221_CAMCHANGE_REMOVED);
8ce571f5 MA	110	}
8ce571f5 MA	111
bc4ed42f MA	112	return 0;
	113	}
	114
	115	void mantis_pcmcia_exit(struct mantis_ca *ca)
	116	{
	117	struct mantis_pci *mantis = ca->ca_priv;
	118
8ce571f5	119	mmwrite(mmread(MANTIS_GPIF_STATUS) & (~MANTIS_CARD_PLUGOUT \| ~MANTIS_CARD_PLUGIN), MANTIS_GPIF_STATUS);
a96762da	120	mantis_mask_ints(mantis, MANTIS_INT_IRQ0);
bc4ed42f	121	}