/* * 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_ca_en50221.h"#include "stv0299.h"#include "stv0297.h"#include "tda1004x.h"#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;	int slot_status;	struct dvb_ca_en50221 ca;	char ir_dev_name[50];	u8 tuner_pll_address; /* used for philips_tdm1316l configs */};/* 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 =		ttpci_budget_debiread(&budget_ci->budget, DEBINOSWAP, DEBIADDR_IR, 2, 1, 0) >> 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 ttpci_budget_debiread(&budget_ci->budget, DEBICICAM,				     DEBIADDR_ATTR | (address & 0xfff), 1, 1, 0);}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 ttpci_budget_debiwrite(&budget_ci->budget, DEBICICAM,				      DEBIADDR_ATTR | (address & 0xfff), 1, value, 1, 0);}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 ttpci_budget_debiread(&budget_ci->budget, DEBICICAM,				     DEBIADDR_IO | (address & 3), 1, 1, 0);}static int ciintf_write_cam_control(struct dvb_ca_en50221 *ca, int slot, u8 address, u8 value){	struct budget_ci *budget_ci = (struct budget_ci *) ca->data;	if (slot != 0)		return -EINVAL;	return ttpci_budget_debiwrite(&budget_ci->budget, DEBICICAM,				      DEBIADDR_IO | (address & 3), 1, value, 1, 0);}static int ciintf_slot_reset(struct dvb_ca_en50221 *ca, int slot){	struct budget_ci *budget_ci = (struct budget_ci *) ca->data;	struct saa7146_dev *saa = budget_ci->budget.dev;	if (slot != 0)		return -EINVAL;	// trigger on RISING edge during reset so we know when READY is re-asserted	saa7146_setgpio(saa, 0, SAA7146_GPIO_IRQHI);	budget_ci->slot_status = SLOTSTATUS_RESET;	ttpci_budget_debiwrite(&budget_ci->budget, DEBICICTL, DEBIADDR_CICONTROL, 1, 0, 1, 0);	msleep(1);	ttpci_budget_debiwrite(&budget_ci->budget, DEBICICTL, DEBIADDR_CICONTROL, 1,			       CICONTROL_RESET, 1, 0);	saa7146_setgpio(saa, 1, SAA7146_GPIO_OUTHI);	ttpci_budget_set_video_port(saa, BUDGET_VIDEO_PORTB);	return 0;}static int ciintf_slot_shutdown(struct dvb_ca_en50221 *ca, int slot){	struct budget_ci *budget_ci = (struct budget_ci *) ca->data;	struct saa7146_dev *saa = budget_ci->budget.dev;	if (slot != 0)		return -EINVAL;	saa7146_setgpio(saa, 1, SAA7146_GPIO_OUTHI);	ttpci_budget_set_video_port(saa, BUDGET_VIDEO_PORTB);	return 0;}static int ciintf_slot_ts_enable(struct dvb_ca_en50221 *ca, int slot){	struct budget_ci *budget_ci = (struct budget_ci *) ca->data;	struct saa7146_dev *saa = budget_ci->budget.dev;	int tmp;	if (slot != 0)		return -EINVAL;	saa7146_setgpio(saa, 1, SAA7146_GPIO_OUTLO);	tmp = ttpci_budget_debiread(&budget_ci->budget, DEBICICTL, DEBIADDR_CICONTROL, 1, 1, 0);	ttpci_budget_debiwrite(&budget_ci->budget, DEBICICTL, DEBIADDR_CICONTROL, 1,			       tmp | CICONTROL_ENABLETS, 1, 0);	ttpci_budget_set_video_port(saa, BUDGET_VIDEO_PORTA);	return 0;}static void ciintf_interrupt(unsigned long data){	struct budget_ci *budget_ci = (struct budget_ci *) data;	struct saa7146_dev *saa = budget_ci->budget.dev;	unsigned int flags;	// ensure we don't get spurious IRQs during initialisation	if (!budget_ci->budget.ci_present)		return;	// read the CAM status	flags = ttpci_budget_debiread(&budget_ci->budget, DEBICICTL, DEBIADDR_CICONTROL, 1, 1, 0);	if (flags & CICONTROL_CAMDETECT) {		// GPIO should be set to trigger on falling edge if a CAM is present		saa7146_setgpio(saa, 0, SAA7146_GPIO_IRQLO);		if (budget_ci->slot_status & SLOTSTATUS_NONE) {			// CAM insertion IRQ			budget_ci->slot_status = SLOTSTATUS_PRESENT;			dvb_ca_en50221_camchange_irq(&budget_ci->ca, 0,						     DVB_CA_EN50221_CAMCHANGE_INSERTED);		} else if (budget_ci->slot_status & SLOTSTATUS_RESET) {			// CAM ready (reset completed)			budget_ci->slot_status = SLOTSTATUS_READY;			dvb_ca_en50221_camready_irq(&budget_ci->ca, 0);		} else if (budget_ci->slot_status & SLOTSTATUS_READY) {			// FR/DA IRQ			dvb_ca_en50221_frda_irq(&budget_ci->ca, 0);		}	} else {		// trigger on rising edge if a CAM is not present - when a CAM is inserted, we		// only want to get the IRQ when it sets READY. If we trigger on the falling edge,		// the CAM might not actually be ready yet.		saa7146_setgpio(saa, 0, SAA7146_GPIO_IRQHI);		// generate a CAM removal IRQ if we haven't already		if (budget_ci->slot_status & SLOTSTATUS_OCCUPIED) {			// CAM removal IRQ			budget_ci->slot_status = SLOTSTATUS_NONE;			dvb_ca_en50221_camchange_irq(&budget_ci->ca, 0,						     DVB_CA_EN50221_CAMCHANGE_REMOVED);		}	}}static int ciintf_init(struct budget_ci *budget_ci){	struct saa7146_dev *saa = budget_ci->budget.dev;	int flags;	int result;	memset(&budget_ci->ca, 0, sizeof(struct dvb_ca_en50221));	// enable DEBI pins	saa7146_write(saa, MC1, saa7146_read(saa, MC1) | (0x800 << 16) | 0x800);	// test if it is there	if ((ttpci_budget_debiread(&budget_ci->budget, DEBICICTL, DEBIADDR_CIVERSION, 1, 1, 0) & 0xa0) != 0xa0) {		result = -ENODEV;		goto error;	}	// determine whether a CAM is present or not	flags = ttpci_budget_debiread(&budget_ci->budget, DEBICICTL, DEBIADDR_CICONTROL, 1, 1, 0);	budget_ci->slot_status = SLOTSTATUS_NONE;	if (flags & CICONTROL_CAMDETECT)		budget_ci->slot_status = SLOTSTATUS_PRESENT;	// register CI interface	budget_ci->ca.owner = THIS_MODULE;	budget_ci->ca.read_attribute_mem = ciintf_read_attribute_mem;	budget_ci->ca.write_attribute_mem = ciintf_write_attribute_mem;	budget_ci->ca.read_cam_control = ciintf_read_cam_control;	budget_ci->ca.write_cam_control = ciintf_write_cam_control;	budget_ci->ca.slot_reset = ciintf_slot_reset;	budget_ci->ca.slot_shutdown = ciintf_slot_shutdown;	budget_ci->ca.slot_ts_enable = ciintf_slot_ts_enable;	budget_ci->ca.data = budget_ci;	if ((result = dvb_ca_en50221_init(&budget_ci->budget.dvb_adapter,