/* * budget-ci.c: driver for the SAA7146 based Budget DVB cards  * * Compiled from various sources by Michael Hunold <michael@mihu.de>  * *     msp430 IR support contributed by Jack Thomasson <jkt@Helius.COM> *     partially based on the Siemens DVB driver by Ralph+Marcus Metzler * * CI interface support (c) 2004 Andrew de Quincey <adq_dvb@lidskialf.net> * * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * Or, point your browser to http://www.gnu.org/copyleft/gpl.html *  * * the project's page is at http://www.linuxtv.org/dvb/ */#include "budget.h"#include <linux/module.h>#include <linux/errno.h>#include <linux/slab.h>#include <linux/interrupt.h>#include <linux/input.h>#include <linux/spinlock.h>#include "dvb_functions.h"#include "dvb_ca_en50221.h"#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))#include "input_fake.h"#endif#define DEBIADDR_IR		0x1234#define DEBIADDR_CICONTROL	0x0000#define DEBIADDR_CIVERSION	0x4000#define DEBIADDR_IO		0x1000#define DEBIADDR_ATTR		0x3000#define CICONTROL_RESET		0x01#define CICONTROL_ENABLETS	0x02#define CICONTROL_CAMDETECT	0x08#define DEBICICTL		0x00420000#define DEBICICAM		0x02420000#define SLOTSTATUS_NONE		1#define SLOTSTATUS_PRESENT	2#define SLOTSTATUS_RESET	4#define SLOTSTATUS_READY	8#define SLOTSTATUS_OCCUPIED	(SLOTSTATUS_PRESENT|SLOTSTATUS_RESET|SLOTSTATUS_READY)struct budget_ci {	struct budget budget;	struct input_dev input_dev;	struct tasklet_struct msp430_irq_tasklet;	struct tasklet_struct ciintf_irq_tasklet;	spinlock_t debilock;	int slot_status;	struct dvb_ca_en50221 ca;	char ir_dev_name[50];};static u32 budget_debiread (struct budget_ci* budget_ci, u32 config, int addr, int count){	struct saa7146_dev *saa = budget_ci->budget.dev;	u32 result = 0;	if (count > 4 || count <= 0)		return 0;	spin_lock(&budget_ci->debilock);	if (saa7146_wait_for_debi_done(saa) < 0) {		spin_unlock(&budget_ci->debilock);		return 0;	}	saa7146_write (saa, DEBI_COMMAND,		       (count << 17) | 0x10000 | (addr & 0xffff));	saa7146_write(saa, DEBI_CONFIG, config);	saa7146_write(saa, DEBI_PAGE, 0);	saa7146_write(saa, MC2, (2 << 16) | 2);	saa7146_wait_for_debi_done(saa);	result = saa7146_read(saa, 0x88);	result &= (0xffffffffUL >> ((4 - count) * 8));	spin_unlock(&budget_ci->debilock);	return result;}static u8 budget_debiwrite (struct budget_ci* budget_ci, u32 config, int addr, int count, u32 value){	struct saa7146_dev *saa = budget_ci->budget.dev;	if (count > 4 || count <= 0)		return 0;	spin_lock(&budget_ci->debilock);	if (saa7146_wait_for_debi_done(saa) < 0) {		spin_unlock(&budget_ci->debilock);		return 0;	}	saa7146_write (saa, DEBI_COMMAND,		       (count << 17) | 0x00000 | (addr & 0xffff));	saa7146_write(saa, DEBI_CONFIG, config);	saa7146_write(saa, DEBI_PAGE, 0);	saa7146_write(saa, DEBI_AD, value);	saa7146_write(saa, MC2, (2 << 16) | 2);	saa7146_wait_for_debi_done(saa);	spin_unlock(&budget_ci->debilock);	return 0;}/* from reading the following remotes:   Zenith Universal 7 / TV Mode 807 / VCR Mode 837   Hauppauge (from NOVA-CI-s box product)   i've taken a "middle of the road" approach and note the differences*/static  u16 key_map[64] = {	/* 0x0X */	KEY_0, KEY_1, KEY_2, KEY_3, KEY_4, KEY_5, KEY_6, KEY_7, KEY_8,	KEY_9,	KEY_ENTER,	KEY_RED,	KEY_POWER,              /* RADIO on Hauppauge */	KEY_MUTE,	0,	KEY_A,                  /* TV on Hauppauge */	/* 0x1X */	KEY_VOLUMEUP, KEY_VOLUMEDOWN,	0, 0,	KEY_B,	0, 0, 0, 0, 0, 0, 0,	KEY_UP, KEY_DOWN,	KEY_OPTION,             /* RESERVED on Hauppauge */	KEY_BREAK,	/* 0x2X */	KEY_CHANNELUP, KEY_CHANNELDOWN,	KEY_PREVIOUS,           /* Prev. Ch on Zenith, SOURCE on Hauppauge */	0, KEY_RESTART, KEY_OK,	KEY_CYCLEWINDOWS,       /* MINIMIZE on Hauppauge */	0,	KEY_ENTER,              /* VCR mode on Zenith */	KEY_PAUSE,	0,	KEY_RIGHT, KEY_LEFT,	0,	KEY_MENU,               /* FULL SCREEN on Hauppauge */	0,	/* 0x3X */	KEY_SLOW,	KEY_PREVIOUS,           /* VCR mode on Zenith */	KEY_REWIND,	0,	KEY_FASTFORWARD,	KEY_PLAY, KEY_STOP,	KEY_RECORD,	KEY_TUNER,              /* TV/VCR on Zenith */	0,	KEY_C,	0,	KEY_EXIT,	KEY_POWER2,	KEY_TUNER,              /* VCR mode on Zenith */	0,};static void msp430_ir_debounce (unsigned long data){	struct input_dev *dev = (struct input_dev *) data;	if (dev->rep[0] == 0 || dev->rep[0] == ~0) {		input_event(dev, EV_KEY, key_map[dev->repeat_key], !!0);		return;	}	dev->rep[0] = 0;	dev->timer.expires = jiffies + HZ * 350 / 1000;	add_timer(&dev->timer);	input_event(dev, EV_KEY, key_map[dev->repeat_key], 2);  /* REPEAT */}static void msp430_ir_interrupt (unsigned long data){	struct budget_ci *budget_ci = (struct budget_ci*) data;	struct input_dev *dev = &budget_ci->input_dev;	unsigned int code = budget_debiread(budget_ci, DEBINOSWAP, DEBIADDR_IR, 2) >> 8;	if (code & 0x40) {	        code &= 0x3f;        	if (timer_pending(&dev->timer)) {                	if (code == dev->repeat_key) {                        	++dev->rep[0];	                        return;        	        }                	del_timer(&dev->timer);		        input_event(dev, EV_KEY, key_map[dev->repeat_key], !!0);		}		if (!key_map[code]) {        	        printk ("DVB (%s): no key for %02x!\n",				__FUNCTION__, code);		        return;       		}		/* initialize debounce and repeat */		dev->repeat_key = code;		/* Zenith remote _always_ sends 2 sequences */		dev->rep[0] = ~0;		/* 350 milliseconds */		dev->timer.expires = jiffies + HZ * 350 / 1000;		/* MAKE */        	input_event(dev, EV_KEY, key_map[code], !0);		add_timer(&dev->timer);	}}static int msp430_ir_init (struct budget_ci *budget_ci){	struct saa7146_dev *saa = budget_ci->budget.dev;	int i;	memset(&budget_ci->input_dev, 0, sizeof(struct input_dev));	sprintf (budget_ci->ir_dev_name, "Budget-CI dvb ir receiver %s", saa->name);	budget_ci->input_dev.name = budget_ci->ir_dev_name;	set_bit(EV_KEY, budget_ci->input_dev.evbit);	for (i=0; i<sizeof(key_map)/sizeof(*key_map); i++)		if (key_map[i])			set_bit(key_map[i], budget_ci->input_dev.keybit);	input_register_device(&budget_ci->input_dev);	budget_ci->input_dev.timer.function = msp430_ir_debounce;	saa7146_write(saa, IER, saa7146_read(saa, IER) | MASK_06);	saa7146_setgpio(saa, 3, SAA7146_GPIO_IRQHI); 	return 0;}static void msp430_ir_deinit (struct budget_ci *budget_ci){	struct saa7146_dev *saa = budget_ci->budget.dev;	struct input_dev *dev = &budget_ci->input_dev;	saa7146_write(saa, IER, saa7146_read(saa, IER) & ~MASK_06);	saa7146_setgpio(saa, 3, SAA7146_GPIO_INPUT);	if (del_timer(&dev->timer))		input_event(dev, EV_KEY, key_map[dev->repeat_key], !!0);	input_unregister_device(dev);}static int ciintf_read_attribute_mem(struct dvb_ca_en50221* ca, int slot, int address) {	struct budget_ci* budget_ci = (struct budget_ci*) ca->data;	if (slot != 0) return -EINVAL;	return budget_debiread(budget_ci, DEBICICAM, DEBIADDR_ATTR | (address & 0xfff), 1);}static int ciintf_write_attribute_mem(struct dvb_ca_en50221* ca, int slot, int address, u8 value) {	struct budget_ci* budget_ci = (struct budget_ci*) ca->data;	if (slot != 0) return -EINVAL;	return budget_debiwrite(budget_ci, DEBICICAM, DEBIADDR_ATTR | (address & 0xfff), 1, value);}static int ciintf_read_cam_control(struct dvb_ca_en50221* ca, int slot, u8 address) {	struct budget_ci* budget_ci = (struct budget_ci*) ca->data;	if (slot != 0) return -EINVAL;	return budget_debiread(budget_ci, DEBICICAM, DEBIADDR_IO | (address & 3), 1);}