[deliverable/linux.git] / drivers / media / dvb / firesat / firesat-ci.c

/*
 * FireDTV driver (formerly known as FireSAT)
 *
 * Copyright (C) 2004 Andreas Monitzer <andy@monitzer.com>
 * Copyright (C) 2008 Henrik Kurelid <henrik@kurelid.se>
 *
 *	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.
 */

#include <linux/dvb/ca.h>
#include <linux/fs.h>
#include <linux/module.h>

#include <dvbdev.h>

#include "avc_api.h"
#include "firesat.h"
#include "firesat-ci.h"

static int firesat_ca_ready(ANTENNA_INPUT_INFO *info)
{
	return info->CaInitializationStatus == 1 &&
	       info->CaErrorFlag == 0 &&
	       info->CaDvbFlag == 1 &&
	       info->CaModulePresentStatus == 1;
}

static int firesat_get_ca_flags(ANTENNA_INPUT_INFO *info)
{
	int flags = 0;

	if (info->CaModulePresentStatus == 1)
		flags |= CA_CI_MODULE_PRESENT;
	if (info->CaInitializationStatus == 1 &&
	    info->CaErrorFlag == 0 &&
	    info->CaDvbFlag == 1)
		flags |= CA_CI_MODULE_READY;
	return flags;
}

static int firesat_ca_reset(struct firesat *firesat)
{
	return avc_ca_reset(firesat) ? -EFAULT : 0;
}

static int firesat_ca_get_caps(void *arg)
{
	struct ca_caps *cap = arg;

	cap->slot_num = 1;
	cap->slot_type = CA_CI;
	cap->descr_num = 1;
	cap->descr_type = CA_ECD;
	return 0;
}

static int firesat_ca_get_slot_info(struct firesat *firesat, void *arg)
{
	ANTENNA_INPUT_INFO info;
	struct ca_slot_info *slot = arg;

	if (avc_tuner_status(firesat, &info))
		return -EFAULT;

	if (slot->num != 0)
		return -EFAULT;

	slot->type = CA_CI;
	slot->flags = firesat_get_ca_flags(&info);
	return 0;
}

static int firesat_ca_app_info(struct firesat *firesat, void *arg)
{
	struct ca_msg *reply = arg;

	return
	    avc_ca_app_info(firesat, reply->msg, &reply->length) ? -EFAULT : 0;
}

static int firesat_ca_info(struct firesat *firesat, void *arg)
{
	struct ca_msg *reply = arg;

	return avc_ca_info(firesat, reply->msg, &reply->length) ? -EFAULT : 0;
}

static int firesat_ca_get_mmi(struct firesat *firesat, void *arg)
{
	struct ca_msg *reply = arg;

	return
	    avc_ca_get_mmi(firesat, reply->msg, &reply->length) ? -EFAULT : 0;
}

static int firesat_ca_get_msg(struct firesat *firesat, void *arg)
{
	ANTENNA_INPUT_INFO info;
	int err;

	switch (firesat->ca_last_command) {
	case TAG_APP_INFO_ENQUIRY:
		err = firesat_ca_app_info(firesat, arg);
		break;
	case TAG_CA_INFO_ENQUIRY:
		err = firesat_ca_info(firesat, arg);
		break;
	default:
		if (avc_tuner_status(firesat, &info))
			err = -EFAULT;
		else if (info.CaMmi == 1)
			err = firesat_ca_get_mmi(firesat, arg);
		else {
			printk(KERN_INFO "%s: Unhandled message 0x%08X\n",
			       __func__, firesat->ca_last_command);
			err = -EFAULT;
		}
	}
	firesat->ca_last_command = 0;
	return err;
}

static int firesat_ca_pmt(struct firesat *firesat, void *arg)
{
	struct ca_msg *msg = arg;
	int data_pos;
	int data_length;
	int i;

	data_pos = 4;
	if (msg->msg[3] & 0x80) {
		data_length = 0;
		for (i = 0; i < (msg->msg[3] & 0x7F); i++)
			data_length = (data_length << 8) + msg->msg[data_pos++];
	} else {
		data_length = msg->msg[3];
	}

	return avc_ca_pmt(firesat, &msg->msg[data_pos], data_length) ?
	       -EFAULT : 0;
}

static int firesat_ca_send_msg(struct firesat *firesat, void *arg)
{
	struct ca_msg *msg = arg;
	int err;

	/* Do we need a semaphore for this? */
	firesat->ca_last_command =
		(msg->msg[0] << 16) + (msg->msg[1] << 8) + msg->msg[2];
	switch (firesat->ca_last_command) {
	case TAG_CA_PMT:
		err = firesat_ca_pmt(firesat, arg);
		break;
	case TAG_APP_INFO_ENQUIRY:
		/* handled in ca_get_msg */
		err = 0;
		break;
	case TAG_CA_INFO_ENQUIRY:
		/* handled in ca_get_msg */
		err = 0;
		break;
	case TAG_ENTER_MENU:
		err = avc_ca_enter_menu(firesat);
		break;
	default:
		printk(KERN_ERR "%s: Unhandled unknown message 0x%08X\n",
		       __func__, firesat->ca_last_command);
		err = -EFAULT;
	}
	return err;
}

static int firesat_ca_ioctl(struct inode *inode, struct file *file,
			    unsigned int cmd, void *arg)
{
	struct dvb_device *dvbdev = file->private_data;
	struct firesat *firesat = dvbdev->priv;
	ANTENNA_INPUT_INFO info;
	int err;

	switch(cmd) {
	case CA_RESET:
		err = firesat_ca_reset(firesat);
		break;
	case CA_GET_CAP:
		err = firesat_ca_get_caps(arg);
		break;
	case CA_GET_SLOT_INFO:
		err = firesat_ca_get_slot_info(firesat, arg);
		break;
	case CA_GET_MSG:
		err = firesat_ca_get_msg(firesat, arg);
		break;
	case CA_SEND_MSG:
		err = firesat_ca_send_msg(firesat, arg);
		break;
	default:
		printk(KERN_INFO "%s: Unhandled ioctl, command: %u\n",__func__,
		       cmd);
		err = -EOPNOTSUPP;
	}

	/* FIXME Is this necessary? */
	avc_tuner_status(firesat, &info);

	return err;
}

static unsigned int firesat_ca_io_poll(struct file *file, poll_table *wait)
{
	return POLLIN;
}

static struct file_operations firesat_ca_fops = {
	.owner		= THIS_MODULE,
	.ioctl		= dvb_generic_ioctl,
	.open		= dvb_generic_open,
	.release	= dvb_generic_release,
	.poll		= firesat_ca_io_poll,
};

static struct dvb_device firesat_ca = {
	.users		= 1,
	.readers	= 1,
	.writers	= 1,
	.fops		= &firesat_ca_fops,
	.kernel_ioctl	= firesat_ca_ioctl,
};

int firesat_ca_register(struct firesat *firesat)
{
	ANTENNA_INPUT_INFO info;
	int err;

	if (avc_tuner_status(firesat, &info))
		return -EINVAL;

	if (!firesat_ca_ready(&info))
		return -EFAULT;

	err = dvb_register_device(&firesat->adapter, &firesat->cadev,
				  &firesat_ca, firesat, DVB_DEVICE_CA);

	if (info.CaApplicationInfo == 0)
		printk(KERN_ERR "%s: CaApplicationInfo is not set.\n",
		       __func__);
	if (info.CaDateTimeRequest == 1)
		avc_ca_get_time_date(firesat, &firesat->ca_time_interval);

	return err;
}

void firesat_ca_release(struct firesat *firesat)
{
	if (firesat->cadev)
		dvb_unregister_device(firesat->cadev);
}
Commit	Line	Data
df4846c3	1	/*
612262a5	2	* FireDTV driver (formerly known as FireSAT)
df4846c3	3	*
612262a5 SR	4	* Copyright (C) 2004 Andreas Monitzer <andy@monitzer.com>
612262a5 SR	5	* Copyright (C) 2008 Henrik Kurelid <henrik@kurelid.se>
df4846c3 HK	6	*
	7	* This program is free software; you can redistribute it and/or
	8	* modify it under the terms of the GNU General Public License as
	9	* published by the Free Software Foundation; either version 2 of
	10	* the License, or (at your option) any later version.
	11	*/
	12
c81c8b68	13	#include <linux/dvb/ca.h>
612262a5 SR	14	#include <linux/fs.h>
	15	#include <linux/module.h>
	16
c81c8b68	17	#include <dvbdev.h>
c81c8b68	18
612262a5 SR	19	#include "avc_api.h"
	20	#include "firesat.h"
	21	#include "firesat-ci.h"
	22
df4846c3 HK	23	static int firesat_ca_ready(ANTENNA_INPUT_INFO *info)
df4846c3 HK	24	{
df4846c3	25	return info->CaInitializationStatus == 1 &&
8ae83cdf SR	26	info->CaErrorFlag == 0 &&
	27	info->CaDvbFlag == 1 &&
	28	info->CaModulePresentStatus == 1;
df4846c3 HK	29	}
	30
	31	static int firesat_get_ca_flags(ANTENNA_INPUT_INFO *info)
	32	{
	33	int flags = 0;
8ae83cdf	34
df4846c3 HK	35	if (info->CaModulePresentStatus == 1)
	36	flags \|= CA_CI_MODULE_PRESENT;
	37	if (info->CaInitializationStatus == 1 &&
	38	info->CaErrorFlag == 0 &&
	39	info->CaDvbFlag == 1)
	40	flags \|= CA_CI_MODULE_READY;
	41	return flags;
	42	}
	43
	44	static int firesat_ca_reset(struct firesat *firesat)
	45	{
8ae83cdf	46	return avc_ca_reset(firesat) ? -EFAULT : 0;
df4846c3 HK	47	}
df4846c3 HK	48
8ae83cdf	49	static int firesat_ca_get_caps(void *arg)
df4846c3	50	{
8ae83cdf SR	51	struct ca_caps *cap = arg;
	52
	53	cap->slot_num = 1;
	54	cap->slot_type = CA_CI;
	55	cap->descr_num = 1;
	56	cap->descr_type = CA_ECD;
	57	return 0;
df4846c3 HK	58	}
	59
	60	static int firesat_ca_get_slot_info(struct firesat firesat, void arg)
	61	{
	62	ANTENNA_INPUT_INFO info;
8ae83cdf	63	struct ca_slot_info *slot = arg;
df4846c3	64
8ae83cdf	65	if (avc_tuner_status(firesat, &info))
df4846c3 HK	66	return -EFAULT;
df4846c3 HK	67
8ae83cdf	68	if (slot->num != 0)
df4846c3	69	return -EFAULT;
8ae83cdf SR	70
	71	slot->type = CA_CI;
	72	slot->flags = firesat_get_ca_flags(&info);
df4846c3 HK	73	return 0;
	74	}
	75
	76	static int firesat_ca_app_info(struct firesat firesat, void arg)
	77	{
8ae83cdf	78	struct ca_msg *reply = arg;
df4846c3	79
8ae83cdf SR	80	return
8ae83cdf SR	81	avc_ca_app_info(firesat, reply->msg, &reply->length) ? -EFAULT : 0;
df4846c3 HK	82	}
	83
	84	static int firesat_ca_info(struct firesat firesat, void arg)
	85	{
8ae83cdf	86	struct ca_msg *reply = arg;
df4846c3	87
8ae83cdf	88	return avc_ca_info(firesat, reply->msg, &reply->length) ? -EFAULT : 0;
df4846c3 HK	89	}
	90
	91	static int firesat_ca_get_mmi(struct firesat firesat, void arg)
	92	{
8ae83cdf	93	struct ca_msg *reply = arg;
df4846c3	94
8ae83cdf SR	95	return
8ae83cdf SR	96	avc_ca_get_mmi(firesat, reply->msg, &reply->length) ? -EFAULT : 0;
df4846c3 HK	97	}
	98
	99	static int firesat_ca_get_msg(struct firesat firesat, void arg)
	100	{
df4846c3	101	ANTENNA_INPUT_INFO info;
8ae83cdf	102	int err;
df4846c3 HK	103
	104	switch (firesat->ca_last_command) {
	105	case TAG_APP_INFO_ENQUIRY:
	106	err = firesat_ca_app_info(firesat, arg);
	107	break;
	108	case TAG_CA_INFO_ENQUIRY:
	109	err = firesat_ca_info(firesat, arg);
c81c8b68	110	break;
df4846c3	111	default:
8ae83cdf	112	if (avc_tuner_status(firesat, &info))
df4846c3	113	err = -EFAULT;
8ae83cdf	114	else if (info.CaMmi == 1)
df4846c3	115	err = firesat_ca_get_mmi(firesat, arg);
df4846c3 HK	116	else {
	117	printk(KERN_INFO "%s: Unhandled message 0x%08X\n",
	118	__func__, firesat->ca_last_command);
	119	err = -EFAULT;
	120	}
	121	}
	122	firesat->ca_last_command = 0;
	123	return err;
	124	}
c81c8b68	125
df4846c3 HK	126	static int firesat_ca_pmt(struct firesat firesat, void arg)
df4846c3 HK	127	{
8ae83cdf	128	struct ca_msg *msg = arg;
df4846c3	129	int data_pos;
7199e523 HK	130	int data_length;
	131	int i;
	132
	133	data_pos = 4;
	134	if (msg->msg[3] & 0x80) {
	135	data_length = 0;
	136	for (i = 0; i < (msg->msg[3] & 0x7F); i++)
	137	data_length = (data_length << 8) + msg->msg[data_pos++];
	138	} else {
	139	data_length = msg->msg[3];
	140	}
df4846c3	141
7199e523 HK	142	return avc_ca_pmt(firesat, &msg->msg[data_pos], data_length) ?
7199e523 HK	143	-EFAULT : 0;
df4846c3 HK	144	}
	145
	146	static int firesat_ca_send_msg(struct firesat firesat, void arg)
	147	{
8ae83cdf	148	struct ca_msg *msg = arg;
df4846c3	149	int err;
df4846c3	150
8ae83cdf	151	/* Do we need a semaphore for this? */
df4846c3	152	firesat->ca_last_command =
8ae83cdf	153	(msg->msg[0] << 16) + (msg->msg[1] << 8) + msg->msg[2];
df4846c3 HK	154	switch (firesat->ca_last_command) {
df4846c3 HK	155	case TAG_CA_PMT:
df4846c3 HK	156	err = firesat_ca_pmt(firesat, arg);
	157	break;
	158	case TAG_APP_INFO_ENQUIRY:
8ae83cdf	159	/* handled in ca_get_msg */
c81c8b68 GKH	160	err = 0;
c81c8b68 GKH	161	break;
df4846c3	162	case TAG_CA_INFO_ENQUIRY:
8ae83cdf	163	/* handled in ca_get_msg */
c81c8b68 GKH	164	err = 0;
c81c8b68 GKH	165	break;
df4846c3	166	case TAG_ENTER_MENU:
df4846c3 HK	167	err = avc_ca_enter_menu(firesat);
	168	break;
	169	default:
	170	printk(KERN_ERR "%s: Unhandled unknown message 0x%08X\n",
	171	__func__, firesat->ca_last_command);
	172	err = -EFAULT;
c81c8b68	173	}
df4846c3 HK	174	return err;
	175	}
	176
	177	static int firesat_ca_ioctl(struct inode inode, struct file file,
	178	unsigned int cmd, void *arg)
	179	{
8ae83cdf	180	struct dvb_device *dvbdev = file->private_data;
df4846c3	181	struct firesat *firesat = dvbdev->priv;
df4846c3	182	ANTENNA_INPUT_INFO info;
8ae83cdf	183	int err;
df4846c3 HK	184
	185	switch(cmd) {
	186	case CA_RESET:
	187	err = firesat_ca_reset(firesat);
	188	break;
	189	case CA_GET_CAP:
8ae83cdf	190	err = firesat_ca_get_caps(arg);
df4846c3 HK	191	break;
	192	case CA_GET_SLOT_INFO:
	193	err = firesat_ca_get_slot_info(firesat, arg);
	194	break;
	195	case CA_GET_MSG:
	196	err = firesat_ca_get_msg(firesat, arg);
	197	break;
	198	case CA_SEND_MSG:
	199	err = firesat_ca_send_msg(firesat, arg);
	200	break;
c81c8b68	201	default:
df4846c3 HK	202	printk(KERN_INFO "%s: Unhandled ioctl, command: %u\n",__func__,
	203	cmd);
	204	err = -EOPNOTSUPP;
c81c8b68	205	}
df4846c3	206
8ae83cdf SR	207	/* FIXME Is this necessary? */
8ae83cdf SR	208	avc_tuner_status(firesat, &info);
df4846c3	209
c81c8b68 GKH	210	return err;
c81c8b68 GKH	211	}
c81c8b68	212
df4846c3 HK	213	static unsigned int firesat_ca_io_poll(struct file file, poll_table wait)
df4846c3 HK	214	{
c81c8b68 GKH	215	return POLLIN;
	216	}
	217
	218	static struct file_operations firesat_ca_fops = {
8ae83cdf SR	219	.owner = THIS_MODULE,
	220	.ioctl = dvb_generic_ioctl,
	221	.open = dvb_generic_open,
	222	.release = dvb_generic_release,
	223	.poll = firesat_ca_io_poll,
c81c8b68 GKH	224	};
	225
	226	static struct dvb_device firesat_ca = {
8ae83cdf SR	227	.users = 1,
	228	.readers = 1,
	229	.writers = 1,
	230	.fops = &firesat_ca_fops,
	231	.kernel_ioctl = firesat_ca_ioctl,
c81c8b68 GKH	232	};
c81c8b68 GKH	233
8ae83cdf	234	int firesat_ca_register(struct firesat *firesat)
df4846c3	235	{
df4846c3	236	ANTENNA_INPUT_INFO info;
8ae83cdf	237	int err;
c81c8b68	238
8ae83cdf	239	if (avc_tuner_status(firesat, &info))
df4846c3 HK	240	return -EINVAL;
df4846c3 HK	241
8ae83cdf SR	242	if (!firesat_ca_ready(&info))
	243	return -EFAULT;
	244
	245	err = dvb_register_device(&firesat->adapter, &firesat->cadev,
	246	&firesat_ca, firesat, DVB_DEVICE_CA);
	247
	248	if (info.CaApplicationInfo == 0)
	249	printk(KERN_ERR "%s: CaApplicationInfo is not set.\n",
	250	__func__);
	251	if (info.CaDateTimeRequest == 1)
	252	avc_ca_get_time_date(firesat, &firesat->ca_time_interval);
df4846c3 HK	253
df4846c3 HK	254	return err;
c81c8b68 GKH	255	}
c81c8b68 GKH	256
df4846c3 HK	257	void firesat_ca_release(struct firesat *firesat)
	258	{
	259	if (firesat->cadev)
8ae83cdf	260	dvb_unregister_device(firesat->cadev);
c81c8b68	261	}