/* * budget-av.c: driver for the SAA7146 based Budget DVB cards *              with analog video in * * Compiled from various sources by Michael Hunold <michael@mihu.de> * * CI interface support (c) 2004 Olivier Gournet <ogournet@anevia.com> & *                               Andrew de Quincey <adq_dvb@lidskialf.net> * * Copyright (C) 2002 Ralph Metzler <rjkm@metzlerbros.de> * * Copyright (C) 1999-2002 Ralph  Metzler *                       & Marcus Metzler for convergence integrated media GmbH * * 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 "stv0299.h"#include "tda10021.h"#include "tda1004x.h"#include "dvb-pll.h"#include <media/saa7146_vv.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"#define DEBICICAM		0x02420000struct budget_av {	struct budget budget;	struct video_device *vd;	int cur_input;	int has_saa7113;	struct tasklet_struct ciintf_irq_tasklet;	int slot_status;	struct dvb_ca_en50221 ca;};/* GPIO Connections: * 0 - Vcc/Reset (Reset is controlled by capacitor). Resets the frontend *AS WELL*! * 1 - CI memory select 0=>IO memory, 1=>Attribute Memory * 2 - CI Card Enable (Active Low) * 3 - CI Card Detect *//**************************************************************************** * INITIALIZATION ****************************************************************************/static u8 i2c_readreg(struct i2c_adapter *i2c, u8 id, u8 reg){	u8 mm1[] = { 0x00 };	u8 mm2[] = { 0x00 };	struct i2c_msg msgs[2];	msgs[0].flags = 0;	msgs[1].flags = I2C_M_RD;	msgs[0].addr = msgs[1].addr = id / 2;	mm1[0] = reg;	msgs[0].len = 1;	msgs[1].len = 1;	msgs[0].buf = mm1;	msgs[1].buf = mm2;	i2c_transfer(i2c, msgs, 2);	return mm2[0];}static int i2c_readregs(struct i2c_adapter *i2c, u8 id, u8 reg, u8 * buf, u8 len){	u8 mm1[] = { reg };	struct i2c_msg msgs[2] = {		{.addr = id / 2,.flags = 0,.buf = mm1,.len = 1},		{.addr = id / 2,.flags = I2C_M_RD,.buf = buf,.len = len}	};	if (i2c_transfer(i2c, msgs, 2) != 2)		return -EIO;	return 0;}static int i2c_writereg(struct i2c_adapter *i2c, u8 id, u8 reg, u8 val){	u8 msg[2] = { reg, val };	struct i2c_msg msgs;	msgs.flags = 0;	msgs.addr = id / 2;	msgs.len = 2;	msgs.buf = msg;	return i2c_transfer(i2c, &msgs, 1);}static int ciintf_read_attribute_mem(struct dvb_ca_en50221 *ca, int slot, int address){	struct budget_av *budget_av = (struct budget_av *) ca->data;	int result;	if (slot != 0)		return -EINVAL;	saa7146_setgpio(budget_av->budget.dev, 1, SAA7146_GPIO_OUTHI);	udelay(1);	result = ttpci_budget_debiread(&budget_av->budget, DEBICICAM, address & 0xfff, 1, 0, 1);	if (result == -ETIMEDOUT)		budget_av->slot_status = 0;	return result;}static int ciintf_write_attribute_mem(struct dvb_ca_en50221 *ca, int slot, int address, u8 value){	struct budget_av *budget_av = (struct budget_av *) ca->data;	int result;	if (slot != 0)		return -EINVAL;	saa7146_setgpio(budget_av->budget.dev, 1, SAA7146_GPIO_OUTHI);	udelay(1);	result = ttpci_budget_debiwrite(&budget_av->budget, DEBICICAM, address & 0xfff, 1, value, 0, 1);	if (result == -ETIMEDOUT)		budget_av->slot_status = 0;	return result;}static int ciintf_read_cam_control(struct dvb_ca_en50221 *ca, int slot, u8 address){	struct budget_av *budget_av = (struct budget_av *) ca->data;	int result;	if (slot != 0)		return -EINVAL;	saa7146_setgpio(budget_av->budget.dev, 1, SAA7146_GPIO_OUTLO);	udelay(1);	result = ttpci_budget_debiread(&budget_av->budget, DEBICICAM, address & 3, 1, 0, 0);	if (result == -ETIMEDOUT)		budget_av->slot_status = 0;	return result;}static int ciintf_write_cam_control(struct dvb_ca_en50221 *ca, int slot, u8 address, u8 value){	struct budget_av *budget_av = (struct budget_av *) ca->data;	int result;	if (slot != 0)		return -EINVAL;	saa7146_setgpio(budget_av->budget.dev, 1, SAA7146_GPIO_OUTLO);	udelay(1);	result = ttpci_budget_debiwrite(&budget_av->budget, DEBICICAM, address & 3, 1, value, 0, 0);	if (result == -ETIMEDOUT)		budget_av->slot_status = 0;	return result;}static int ciintf_slot_reset(struct dvb_ca_en50221 *ca, int slot){	struct budget_av *budget_av = (struct budget_av *) ca->data;	struct saa7146_dev *saa = budget_av->budget.dev;	int timeout = 50; // 5 seconds (4.4.6 Ready)	if (slot != 0)		return -EINVAL;	dprintk(1, "ciintf_slot_reset\n");	saa7146_setgpio(saa, 2, SAA7146_GPIO_OUTHI); /* disable card */	saa7146_setgpio(saa, 0, SAA7146_GPIO_OUTHI); /* Vcc off */	msleep(2);	saa7146_setgpio(saa, 0, SAA7146_GPIO_OUTLO); /* Vcc on */	msleep(20); /* 20 ms Vcc settling time */	saa7146_setgpio(saa, 2, SAA7146_GPIO_OUTLO); /* enable card */	/* This should have been based on pin 16 READY of the pcmcia port,	 * but AFAICS it is not routed to the saa7146 */	while (--timeout > 0 && ciintf_read_attribute_mem(ca, slot, 0) != 0x1d)		msleep(100);	/* reinitialise the frontend */	dvb_frontend_reinitialise(budget_av->budget.dvb_frontend);	if (timeout <= 0)	{		printk(KERN_ERR "budget-av: cam reset failed (timeout).\n");		saa7146_setgpio(saa, 2, SAA7146_GPIO_OUTHI); /* disable card */		return -ETIMEDOUT;	}	return 0;}static int ciintf_slot_shutdown(struct dvb_ca_en50221 *ca, int slot){	struct budget_av *budget_av = (struct budget_av *) ca->data;	struct saa7146_dev *saa = budget_av->budget.dev;	if (slot != 0)		return -EINVAL;	dprintk(1, "ciintf_slot_shutdown\n");	ttpci_budget_set_video_port(saa, BUDGET_VIDEO_PORTB);	budget_av->slot_status = 0;	return 0;}static int ciintf_slot_ts_enable(struct dvb_ca_en50221 *ca, int slot){	struct budget_av *budget_av = (struct budget_av *) ca->data;	struct saa7146_dev *saa = budget_av->budget.dev;	if (slot != 0)		return -EINVAL;	dprintk(1, "ciintf_slot_ts_enable: %d\n", budget_av->slot_status);	ttpci_budget_set_video_port(saa, BUDGET_VIDEO_PORTA);	return 0;}static int ciintf_poll_slot_status(struct dvb_ca_en50221 *ca, int slot, int open){	struct budget_av *budget_av = (struct budget_av *) ca->data;	struct saa7146_dev *saa = budget_av->budget.dev;	int cam_present = 0;	if (slot != 0)		return -EINVAL;	if (!budget_av->slot_status)	{		// first of all test the card detect line		saa7146_setgpio(saa, 3, SAA7146_GPIO_INPUT);		udelay(1);		if (saa7146_read(saa, PSR) & MASK_06)		{			cam_present = 1;		}		saa7146_setgpio(saa, 3, SAA7146_GPIO_OUTLO);		// that is unreliable however, so try and read from IO memory		if (!cam_present)		{			saa7146_setgpio(budget_av->budget.dev, 1, SAA7146_GPIO_OUTLO);			if (ttpci_budget_debiread(&budget_av->budget, DEBICICAM, 0, 1, 0, 1) != -ETIMEDOUT)			{				cam_present = 1;			}		}		// did we find something?		if (cam_present) {			printk(KERN_INFO "budget-av: cam inserted\n");			budget_av->slot_status = 1;		}	} else if (!open) {		saa7146_setgpio(budget_av->budget.dev, 1, SAA7146_GPIO_OUTLO);		if (ttpci_budget_debiread(&budget_av->budget, DEBICICAM, 0, 1, 0, 1) == -ETIMEDOUT)		{			printk(KERN_INFO "budget-av: cam ejected\n");			saa7146_setgpio(saa, 2, SAA7146_GPIO_OUTHI); /* disable card */			budget_av->slot_status = 0;		}	}	if (budget_av->slot_status == 1)		return DVB_CA_EN50221_POLL_CAM_PRESENT | DVB_CA_EN50221_POLL_CAM_READY;	return 0;}static int ciintf_init(struct budget_av *budget_av){	struct saa7146_dev *saa = budget_av->budget.dev;	int result;	memset(&budget_av->ca, 0, sizeof(struct dvb_ca_en50221));	saa7146_setgpio(saa, 0, SAA7146_GPIO_OUTLO);	saa7146_setgpio(saa, 1, SAA7146_GPIO_OUTLO);	saa7146_setgpio(saa, 2, SAA7146_GPIO_OUTLO);	saa7146_setgpio(saa, 3, SAA7146_GPIO_OUTLO);	/* Enable DEBI pins */	saa7146_write(saa, MC1, saa7146_read(saa, MC1) | (0x800 << 16) | 0x800);	/* register CI interface */	budget_av->ca.owner = THIS_MODULE;	budget_av->ca.read_attribute_mem = ciintf_read_attribute_mem;	budget_av->ca.write_attribute_mem = ciintf_write_attribute_mem;	budget_av->ca.read_cam_control = ciintf_read_cam_control;	budget_av->ca.write_cam_control = ciintf_write_cam_control;	budget_av->ca.slot_reset = ciintf_slot_reset;	budget_av->ca.slot_shutdown = ciintf_slot_shutdown;	budget_av->ca.slot_ts_enable = ciintf_slot_ts_enable;	budget_av->ca.poll_slot_status = ciintf_poll_slot_status;	budget_av->ca.data = budget_av;	if ((result = dvb_ca_en50221_init(&budget_av->budget.dvb_adapter,					  &budget_av->ca, 0, 1)) != 0) {		printk(KERN_ERR "budget-av: ci initialisation failed.\n");		goto error;	}	printk(KERN_INFO "budget-av: ci interface initialised.\n");	budget_av->budget.ci_present = 1;	return 0;error:	saa7146_write(saa, MC1, saa7146_read(saa, MC1) | (0x800 << 16));	return result;}static void ciintf_deinit(struct budget_av *budget_av){	struct saa7146_dev *saa = budget_av->budget.dev;	saa7146_setgpio(saa, 0, SAA7146_GPIO_INPUT);	saa7146_setgpio(saa, 1, SAA7146_GPIO_INPUT);	saa7146_setgpio(saa, 2, SAA7146_GPIO_INPUT);	saa7146_setgpio(saa, 3, SAA7146_GPIO_INPUT);	/* release the CA device */	dvb_ca_en50221_release(&budget_av->ca);	/* disable DEBI pins */	saa7146_write(saa, MC1, saa7146_read(saa, MC1) | (0x800 << 16));}static const u8 saa7113_tab[] = {	0x01, 0x08,	0x02, 0xc0,	0x03, 0x33,	0x04, 0x00,	0x05, 0x00,	0x06, 0xeb,	0x07, 0xe0,	0x08, 0x28,	0x09, 0x00,	0x0a, 0x80,	0x0b, 0x47,	0x0c, 0x40,	0x0d, 0x00,	0x0e, 0x01,	0x0f, 0x44,	0x10, 0x08,	0x11, 0x0c,	0x12, 0x7b,	0x13, 0x00,	0x15, 0x00, 0x16, 0x00, 0x17, 0x00,	0x57, 0xff,	0x40, 0x82, 0x58, 0x00, 0x59, 0x54, 0x5a, 0x07,	0x5b, 0x83, 0x5e, 0x00,	0xff};static int saa7113_init(struct budget_av *budget_av){	struct budget *budget = &budget_av->budget;	struct saa7146_dev *saa = budget->dev;	const u8 *data = saa7113_tab;	saa7146_setgpio(saa, 0, SAA7146_GPIO_OUTHI);	msleep(200);	if (i2c_writereg(&budget->i2c_adap, 0x4a, 0x01, 0x08) != 1) {		dprintk(1, "saa7113 not found on KNC card\n");		return -ENODEV;	}	dprintk(1, "saa7113 detected and initializing\n");	while (*data != 0xff) {		i2c_writereg(&budget->i2c_adap, 0x4a, *data, *(data + 1));		data += 2;	}	dprintk(1, "saa7113  status=%02x\n", i2c_readreg(&budget->i2c_adap, 0x4a, 0x1f));	return 0;}static int saa7113_setinput(struct budget_av *budget_av, int input){	struct budget *budget = &budget_av->budget;	if (1 != budget_av->has_saa7113)		return -ENODEV;	if (input == 1) {		i2c_writereg(&budget->i2c_adap, 0x4a, 0x02, 0xc7);		i2c_writereg(&budget->i2c_adap, 0x4a, 0x09, 0x80);	} else if (input == 0) {		i2c_writereg(&budget->i2c_adap, 0x4a, 0x02, 0xc0);		i2c_writereg(&budget->i2c_adap, 0x4a, 0x09, 0x00);	} else		return -EINVAL;	budget_av->cur_input = input;	return 0;}static int philips_su1278_ty_ci_set_symbol_rate(struct dvb_frontend *fe, u32 srate, u32 ratio){	u8 aclk = 0;	u8 bclk = 0;	u8 m1;	aclk = 0xb5;	if (srate < 2000000)		bclk = 0x86;	else if (srate < 5000000)