[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / media / dvb / 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 "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;

	mmwrite(mmread(MANTIS_INT_MASK) | MANTIS_INT_IRQ0, MANTIS_INT_MASK);
	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);
	mmwrite(mmread(MANTIS_INT_MASK) & ~MANTIS_INT_IRQ0, MANTIS_INT_MASK);
}
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>
	26
	27	#include "dmxdev.h"
	28	#include "dvbdev.h"
	29	#include "dvb_demux.h"
	30	#include "dvb_frontend.h"
	31	#include "dvb_net.h"
	32
bc4ed42f	33	#include "mantis_common.h"
8ce571f5	34	#include "mantis_link.h" /* temporary due to physical layer stuff */
b3b96144	35	#include "mantis_reg.h"
8ce571f5 MA	36
	37	/*
	38	* If Slot state is already PLUG_IN event and we are called
	39	* again, definitely it is jitter alone
	40	*/
	41	void mantis_event_cam_plugin(struct mantis_ca *ca)
	42	{
	43	struct mantis_pci *mantis = ca->ca_priv;
	44
	45	u32 gpif_irqcfg;
	46
	47	if (ca->slot_state == MODULE_XTRACTED) {
b3b96144	48	dprintk(MANTIS_DEBUG, 1, "Event: CAM Plugged IN: Adapter(%d) Slot(0)", mantis->num);
8ce571f5 MA	49	udelay(50);
	50	mmwrite(0xda000000, MANTIS_CARD_RESET);
	51	gpif_irqcfg = mmread(MANTIS_GPIF_IRQCFG);
	52	gpif_irqcfg \|= MANTIS_MASK_PLUGOUT;
	53	gpif_irqcfg &= ~MANTIS_MASK_PLUGIN;
	54	mmwrite(gpif_irqcfg, MANTIS_GPIF_IRQCFG);
	55	udelay(500);
	56	ca->slot_state = MODULE_INSERTED;
	57	}
	58	udelay(100);
	59	}
	60
	61	/*
	62	* If Slot state is already UN_PLUG event and we are called
	63	* again, definitely it is jitter alone
	64	*/
	65	void mantis_event_cam_unplug(struct mantis_ca *ca)
	66	{
	67	struct mantis_pci *mantis = ca->ca_priv;
	68
	69	u32 gpif_irqcfg;
	70
	71	if (ca->slot_state == MODULE_INSERTED) {
b3b96144	72	dprintk(MANTIS_DEBUG, 1, "Event: CAM Unplugged: Adapter(%d) Slot(0)", mantis->num);
8ce571f5 MA	73	udelay(50);
	74	mmwrite(0x00da0000, MANTIS_CARD_RESET);
	75	gpif_irqcfg = mmread(MANTIS_GPIF_IRQCFG);
	76	gpif_irqcfg \|= MANTIS_MASK_PLUGIN;
	77	gpif_irqcfg &= ~MANTIS_MASK_PLUGOUT;
	78	mmwrite(gpif_irqcfg, MANTIS_GPIF_IRQCFG);
	79	udelay(500);
	80	ca->slot_state = MODULE_XTRACTED;
	81	}
	82	udelay(100);
	83	}
bc4ed42f MA	84
	85	int mantis_pcmcia_init(struct mantis_ca *ca)
	86	{
	87	struct mantis_pci *mantis = ca->ca_priv;
	88
8ce571f5 MA	89	u32 gpif_stat, card_stat;
8ce571f5 MA	90
d9dd5f71	91	mmwrite(mmread(MANTIS_INT_MASK) \| MANTIS_INT_IRQ0, MANTIS_INT_MASK);
8ce571f5 MA	92	gpif_stat = mmread(MANTIS_GPIF_STATUS);
	93	card_stat = mmread(MANTIS_GPIF_IRQCFG);
	94
	95	if (gpif_stat & MANTIS_GPIF_DETSTAT) {
b3b96144	96	dprintk(MANTIS_DEBUG, 1, "CAM found on Adapter(%d) Slot(0)", mantis->num);
8ce571f5 MA	97	mmwrite(card_stat \| MANTIS_MASK_PLUGOUT, MANTIS_GPIF_IRQCFG);
8ce571f5 MA	98	ca->slot_state = MODULE_INSERTED;
86c75c5c SA	99	dvb_ca_en50221_camchange_irq(&ca->en50221,
	100	0,
	101	DVB_CA_EN50221_CAMCHANGE_INSERTED);
8ce571f5	102	} else {
b3b96144	103	dprintk(MANTIS_DEBUG, 1, "Empty Slot on Adapter(%d) Slot(0)", mantis->num);
8ce571f5 MA	104	mmwrite(card_stat \| MANTIS_MASK_PLUGIN, MANTIS_GPIF_IRQCFG);
8ce571f5 MA	105	ca->slot_state = MODULE_XTRACTED;
88a6fa9d MA	106	dvb_ca_en50221_camchange_irq(&ca->en50221,
	107	0,
	108	DVB_CA_EN50221_CAMCHANGE_REMOVED);
8ce571f5 MA	109	}
8ce571f5 MA	110
bc4ed42f MA	111	return 0;
	112	}
	113
	114	void mantis_pcmcia_exit(struct mantis_ca *ca)
	115	{
	116	struct mantis_pci *mantis = ca->ca_priv;
	117
8ce571f5 MA	118	mmwrite(mmread(MANTIS_GPIF_STATUS) & (~MANTIS_CARD_PLUGOUT \| ~MANTIS_CARD_PLUGIN), MANTIS_GPIF_STATUS);
8ce571f5 MA	119	mmwrite(mmread(MANTIS_INT_MASK) & ~MANTIS_INT_IRQ0, MANTIS_INT_MASK);
bc4ed42f	120	}