2 * FireDTV driver (formerly known as FireSAT)
4 * Copyright (C) 2004 Andreas Monitzer <andy@monitzer.com>
5 * Copyright (C) 2008 Henrik Kurelid <henrik@kurelid.se>
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.
13 #include <linux/device.h>
14 #include <linux/dvb/ca.h>
16 #include <linux/module.h>
22 #define EN50221_TAG_APP_INFO_ENQUIRY 0x9f8020
23 #define EN50221_TAG_CA_INFO_ENQUIRY 0x9f8030
24 #define EN50221_TAG_CA_PMT 0x9f8032
25 #define EN50221_TAG_ENTER_MENU 0x9f8022
27 static int fdtv_ca_ready(struct firedtv_tuner_status *stat)
29 return stat->ca_initialization_status == 1 &&
30 stat->ca_error_flag == 0 &&
31 stat->ca_dvb_flag == 1 &&
32 stat->ca_module_present_status == 1;
35 static int fdtv_get_ca_flags(struct firedtv_tuner_status *stat)
39 if (stat->ca_module_present_status == 1)
40 flags |= CA_CI_MODULE_PRESENT;
41 if (stat->ca_initialization_status == 1 &&
42 stat->ca_error_flag == 0 &&
43 stat->ca_dvb_flag == 1)
44 flags |= CA_CI_MODULE_READY;
48 static int fdtv_ca_reset(struct firedtv *fdtv)
50 return avc_ca_reset(fdtv) ? -EFAULT : 0;
53 static int fdtv_ca_get_caps(void *arg)
55 struct ca_caps *cap = arg;
58 cap->slot_type = CA_CI;
60 cap->descr_type = CA_ECD;
64 static int fdtv_ca_get_slot_info(struct firedtv *fdtv, void *arg)
66 struct firedtv_tuner_status stat;
67 struct ca_slot_info *slot = arg;
69 if (avc_tuner_status(fdtv, &stat))
76 slot->flags = fdtv_get_ca_flags(&stat);
80 static int fdtv_ca_app_info(struct firedtv *fdtv, void *arg)
82 struct ca_msg *reply = arg;
84 return avc_ca_app_info(fdtv, reply->msg, &reply->length) ? -EFAULT : 0;
87 static int fdtv_ca_info(struct firedtv *fdtv, void *arg)
89 struct ca_msg *reply = arg;
91 return avc_ca_info(fdtv, reply->msg, &reply->length) ? -EFAULT : 0;
94 static int fdtv_ca_get_mmi(struct firedtv *fdtv, void *arg)
96 struct ca_msg *reply = arg;
98 return avc_ca_get_mmi(fdtv, reply->msg, &reply->length) ? -EFAULT : 0;
101 static int fdtv_ca_get_msg(struct firedtv *fdtv, void *arg)
103 struct firedtv_tuner_status stat;
106 switch (fdtv->ca_last_command) {
107 case EN50221_TAG_APP_INFO_ENQUIRY:
108 err = fdtv_ca_app_info(fdtv, arg);
110 case EN50221_TAG_CA_INFO_ENQUIRY:
111 err = fdtv_ca_info(fdtv, arg);
114 if (avc_tuner_status(fdtv, &stat))
116 else if (stat.ca_mmi == 1)
117 err = fdtv_ca_get_mmi(fdtv, arg);
119 dev_info(fdtv->device, "unhandled CA message 0x%08x\n",
120 fdtv->ca_last_command);
124 fdtv->ca_last_command = 0;
128 static int fdtv_ca_pmt(struct firedtv *fdtv, void *arg)
130 struct ca_msg *msg = arg;
136 if (msg->msg[3] & 0x80) {
138 for (i = 0; i < (msg->msg[3] & 0x7f); i++)
139 data_length = (data_length << 8) + msg->msg[data_pos++];
141 data_length = msg->msg[3];
144 return avc_ca_pmt(fdtv, &msg->msg[data_pos], data_length) ? -EFAULT : 0;
147 static int fdtv_ca_send_msg(struct firedtv *fdtv, void *arg)
149 struct ca_msg *msg = arg;
152 /* Do we need a semaphore for this? */
153 fdtv->ca_last_command =
154 (msg->msg[0] << 16) + (msg->msg[1] << 8) + msg->msg[2];
155 switch (fdtv->ca_last_command) {
156 case EN50221_TAG_CA_PMT:
157 err = fdtv_ca_pmt(fdtv, arg);
159 case EN50221_TAG_APP_INFO_ENQUIRY:
160 /* handled in ca_get_msg */
163 case EN50221_TAG_CA_INFO_ENQUIRY:
164 /* handled in ca_get_msg */
167 case EN50221_TAG_ENTER_MENU:
168 err = avc_ca_enter_menu(fdtv);
171 dev_err(fdtv->device, "unhandled CA message 0x%08x\n",
172 fdtv->ca_last_command);
178 static int fdtv_ca_ioctl(struct inode *inode, struct file *file,
179 unsigned int cmd, void *arg)
181 struct dvb_device *dvbdev = file->private_data;
182 struct firedtv *fdtv = dvbdev->priv;
183 struct firedtv_tuner_status stat;
188 err = fdtv_ca_reset(fdtv);
191 err = fdtv_ca_get_caps(arg);
193 case CA_GET_SLOT_INFO:
194 err = fdtv_ca_get_slot_info(fdtv, arg);
197 err = fdtv_ca_get_msg(fdtv, arg);
200 err = fdtv_ca_send_msg(fdtv, arg);
203 dev_info(fdtv->device, "unhandled CA ioctl %u\n", cmd);
207 /* FIXME Is this necessary? */
208 avc_tuner_status(fdtv, &stat);
213 static unsigned int fdtv_ca_io_poll(struct file *file, poll_table *wait)
218 static struct file_operations fdtv_ca_fops = {
219 .owner = THIS_MODULE,
220 .ioctl = dvb_generic_ioctl,
221 .open = dvb_generic_open,
222 .release = dvb_generic_release,
223 .poll = fdtv_ca_io_poll,
226 static struct dvb_device fdtv_ca = {
230 .fops = &fdtv_ca_fops,
231 .kernel_ioctl = fdtv_ca_ioctl,
234 int fdtv_ca_register(struct firedtv *fdtv)
236 struct firedtv_tuner_status stat;
239 if (avc_tuner_status(fdtv, &stat))
242 if (!fdtv_ca_ready(&stat))
245 err = dvb_register_device(&fdtv->adapter, &fdtv->cadev,
246 &fdtv_ca, fdtv, DVB_DEVICE_CA);
248 if (stat.ca_application_info == 0)
249 dev_err(fdtv->device, "CaApplicationInfo is not set\n");
250 if (stat.ca_date_time_request == 1)
251 avc_ca_get_time_date(fdtv, &fdtv->ca_time_interval);
256 void fdtv_ca_release(struct firedtv *fdtv)
259 dvb_unregister_device(fdtv->cadev);