Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * dmxdev.c - DVB demultiplexer device |
| 3 | * |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 4 | * Copyright (C) 2000 Ralph Metzler & Marcus Metzler |
| 5 | * for convergence integrated media GmbH |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6 | * |
| 7 | * This program is free software; you can redistribute it and/or |
| 8 | * modify it under the terms of the GNU Lesser General Public License |
| 9 | * as published by the Free Software Foundation; either version 2.1 |
| 10 | * of the License, or (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU Lesser General Public License |
| 18 | * along with this program; if not, write to the Free Software |
| 19 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 20 | * |
| 21 | */ |
| 22 | |
| 23 | #include <linux/spinlock.h> |
| 24 | #include <linux/slab.h> |
| 25 | #include <linux/vmalloc.h> |
| 26 | #include <linux/module.h> |
| 27 | #include <linux/moduleparam.h> |
| 28 | #include <linux/sched.h> |
| 29 | #include <linux/poll.h> |
| 30 | #include <linux/ioctl.h> |
| 31 | #include <linux/wait.h> |
| 32 | #include <asm/uaccess.h> |
| 33 | #include <asm/system.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 34 | #include "dmxdev.h" |
| 35 | |
| 36 | static int debug; |
| 37 | |
| 38 | module_param(debug, int, 0644); |
| 39 | MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off)."); |
| 40 | |
| 41 | #define dprintk if (debug) printk |
| 42 | |
Andreas Oberritter | 34731df | 2006-03-14 17:31:01 -0300 | [diff] [blame] | 43 | static int dvb_dmxdev_buffer_write(struct dvb_ringbuffer *buf, |
| 44 | const u8 *src, size_t len) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 45 | { |
Andreas Oberritter | 34731df | 2006-03-14 17:31:01 -0300 | [diff] [blame] | 46 | ssize_t free; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 47 | |
| 48 | if (!len) |
| 49 | return 0; |
| 50 | if (!buf->data) |
| 51 | return 0; |
| 52 | |
Andreas Oberritter | 34731df | 2006-03-14 17:31:01 -0300 | [diff] [blame] | 53 | free = dvb_ringbuffer_free(buf); |
| 54 | if (len > free) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 55 | dprintk("dmxdev: buffer overflow\n"); |
Andreas Oberritter | 34731df | 2006-03-14 17:31:01 -0300 | [diff] [blame] | 56 | return -EOVERFLOW; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 57 | } |
Andreas Oberritter | 34731df | 2006-03-14 17:31:01 -0300 | [diff] [blame] | 58 | |
| 59 | return dvb_ringbuffer_write(buf, src, len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 60 | } |
| 61 | |
Andreas Oberritter | 34731df | 2006-03-14 17:31:01 -0300 | [diff] [blame] | 62 | static ssize_t dvb_dmxdev_buffer_read(struct dvb_ringbuffer *src, |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 63 | int non_blocking, char __user *buf, |
| 64 | size_t count, loff_t *ppos) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 65 | { |
Andreas Oberritter | 34731df | 2006-03-14 17:31:01 -0300 | [diff] [blame] | 66 | size_t todo; |
| 67 | ssize_t avail; |
| 68 | ssize_t ret = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 69 | |
| 70 | if (!src->data) |
| 71 | return 0; |
| 72 | |
Andreas Oberritter | 34731df | 2006-03-14 17:31:01 -0300 | [diff] [blame] | 73 | if (src->error) { |
| 74 | ret = src->error; |
| 75 | dvb_ringbuffer_flush(src); |
| 76 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 77 | } |
| 78 | |
Andreas Oberritter | 34731df | 2006-03-14 17:31:01 -0300 | [diff] [blame] | 79 | for (todo = count; todo > 0; todo -= ret) { |
| 80 | if (non_blocking && dvb_ringbuffer_empty(src)) { |
| 81 | ret = -EWOULDBLOCK; |
| 82 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 83 | } |
| 84 | |
Andreas Oberritter | 34731df | 2006-03-14 17:31:01 -0300 | [diff] [blame] | 85 | ret = wait_event_interruptible(src->queue, |
| 86 | !dvb_ringbuffer_empty(src) || |
| 87 | (src->error != 0)); |
| 88 | if (ret < 0) |
| 89 | break; |
| 90 | |
| 91 | if (src->error) { |
| 92 | ret = src->error; |
| 93 | dvb_ringbuffer_flush(src); |
| 94 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 95 | } |
Andreas Oberritter | 34731df | 2006-03-14 17:31:01 -0300 | [diff] [blame] | 96 | |
| 97 | avail = dvb_ringbuffer_avail(src); |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 98 | if (avail > todo) |
| 99 | avail = todo; |
Andreas Oberritter | 34731df | 2006-03-14 17:31:01 -0300 | [diff] [blame] | 100 | |
| 101 | ret = dvb_ringbuffer_read(src, buf, avail, 1); |
| 102 | if (ret < 0) |
| 103 | break; |
| 104 | |
| 105 | buf += ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 106 | } |
Andreas Oberritter | 34731df | 2006-03-14 17:31:01 -0300 | [diff] [blame] | 107 | |
| 108 | return (count - todo) ? (count - todo) : ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 109 | } |
| 110 | |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 111 | static struct dmx_frontend *get_fe(struct dmx_demux *demux, int type) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 112 | { |
| 113 | struct list_head *head, *pos; |
| 114 | |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 115 | head = demux->get_frontends(demux); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 116 | if (!head) |
| 117 | return NULL; |
| 118 | list_for_each(pos, head) |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 119 | if (DMX_FE_ENTRY(pos)->source == type) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 120 | return DMX_FE_ENTRY(pos); |
| 121 | |
| 122 | return NULL; |
| 123 | } |
| 124 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 125 | static int dvb_dvr_open(struct inode *inode, struct file *file) |
| 126 | { |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 127 | struct dvb_device *dvbdev = file->private_data; |
| 128 | struct dmxdev *dmxdev = dvbdev->priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 129 | struct dmx_frontend *front; |
| 130 | |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 131 | dprintk("function : %s\n", __FUNCTION__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 132 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 133 | if (mutex_lock_interruptible(&dmxdev->mutex)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 134 | return -ERESTARTSYS; |
| 135 | |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 136 | if ((file->f_flags & O_ACCMODE) == O_RDWR) { |
| 137 | if (!(dmxdev->capabilities & DMXDEV_CAP_DUPLEX)) { |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 138 | mutex_unlock(&dmxdev->mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 139 | return -EOPNOTSUPP; |
| 140 | } |
| 141 | } |
| 142 | |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 143 | if ((file->f_flags & O_ACCMODE) == O_RDONLY) { |
Andreas Oberritter | 34731df | 2006-03-14 17:31:01 -0300 | [diff] [blame] | 144 | void *mem = vmalloc(DVR_BUFFER_SIZE); |
| 145 | if (!mem) { |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 146 | mutex_unlock(&dmxdev->mutex); |
| 147 | return -ENOMEM; |
| 148 | } |
Andreas Oberritter | 34731df | 2006-03-14 17:31:01 -0300 | [diff] [blame] | 149 | dvb_ringbuffer_init(&dmxdev->dvr_buffer, mem, DVR_BUFFER_SIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 150 | } |
| 151 | |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 152 | if ((file->f_flags & O_ACCMODE) == O_WRONLY) { |
| 153 | dmxdev->dvr_orig_fe = dmxdev->demux->frontend; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 154 | |
| 155 | if (!dmxdev->demux->write) { |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 156 | mutex_unlock(&dmxdev->mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 157 | return -EOPNOTSUPP; |
| 158 | } |
| 159 | |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 160 | front = get_fe(dmxdev->demux, DMX_MEMORY_FE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 161 | |
| 162 | if (!front) { |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 163 | mutex_unlock(&dmxdev->mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 164 | return -EINVAL; |
| 165 | } |
| 166 | dmxdev->demux->disconnect_frontend(dmxdev->demux); |
| 167 | dmxdev->demux->connect_frontend(dmxdev->demux, front); |
| 168 | } |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 169 | mutex_unlock(&dmxdev->mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 170 | return 0; |
| 171 | } |
| 172 | |
| 173 | static int dvb_dvr_release(struct inode *inode, struct file *file) |
| 174 | { |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 175 | struct dvb_device *dvbdev = file->private_data; |
| 176 | struct dmxdev *dmxdev = dvbdev->priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 177 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 178 | if (mutex_lock_interruptible(&dmxdev->mutex)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 179 | return -ERESTARTSYS; |
| 180 | |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 181 | if ((file->f_flags & O_ACCMODE) == O_WRONLY) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 182 | dmxdev->demux->disconnect_frontend(dmxdev->demux); |
| 183 | dmxdev->demux->connect_frontend(dmxdev->demux, |
| 184 | dmxdev->dvr_orig_fe); |
| 185 | } |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 186 | if ((file->f_flags & O_ACCMODE) == O_RDONLY) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 187 | if (dmxdev->dvr_buffer.data) { |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 188 | void *mem = dmxdev->dvr_buffer.data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 189 | mb(); |
| 190 | spin_lock_irq(&dmxdev->lock); |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 191 | dmxdev->dvr_buffer.data = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 192 | spin_unlock_irq(&dmxdev->lock); |
| 193 | vfree(mem); |
| 194 | } |
| 195 | } |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 196 | mutex_unlock(&dmxdev->mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 197 | return 0; |
| 198 | } |
| 199 | |
| 200 | static ssize_t dvb_dvr_write(struct file *file, const char __user *buf, |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 201 | size_t count, loff_t *ppos) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 202 | { |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 203 | struct dvb_device *dvbdev = file->private_data; |
| 204 | struct dmxdev *dmxdev = dvbdev->priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 205 | int ret; |
| 206 | |
| 207 | if (!dmxdev->demux->write) |
| 208 | return -EOPNOTSUPP; |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 209 | if ((file->f_flags & O_ACCMODE) != O_WRONLY) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 210 | return -EINVAL; |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 211 | if (mutex_lock_interruptible(&dmxdev->mutex)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 212 | return -ERESTARTSYS; |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 213 | ret = dmxdev->demux->write(dmxdev->demux, buf, count); |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 214 | mutex_unlock(&dmxdev->mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 215 | return ret; |
| 216 | } |
| 217 | |
| 218 | static ssize_t dvb_dvr_read(struct file *file, char __user *buf, size_t count, |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 219 | loff_t *ppos) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 220 | { |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 221 | struct dvb_device *dvbdev = file->private_data; |
| 222 | struct dmxdev *dmxdev = dvbdev->priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 223 | int ret; |
| 224 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 225 | //mutex_lock(&dmxdev->mutex); |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 226 | ret = dvb_dmxdev_buffer_read(&dmxdev->dvr_buffer, |
| 227 | file->f_flags & O_NONBLOCK, |
| 228 | buf, count, ppos); |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 229 | //mutex_unlock(&dmxdev->mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 230 | return ret; |
| 231 | } |
| 232 | |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 233 | static inline void dvb_dmxdev_filter_state_set(struct dmxdev_filter |
| 234 | *dmxdevfilter, int state) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 235 | { |
| 236 | spin_lock_irq(&dmxdevfilter->dev->lock); |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 237 | dmxdevfilter->state = state; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 238 | spin_unlock_irq(&dmxdevfilter->dev->lock); |
| 239 | } |
| 240 | |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 241 | static int dvb_dmxdev_set_buffer_size(struct dmxdev_filter *dmxdevfilter, |
| 242 | unsigned long size) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 243 | { |
Andreas Oberritter | 34731df | 2006-03-14 17:31:01 -0300 | [diff] [blame] | 244 | struct dvb_ringbuffer *buf = &dmxdevfilter->buffer; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 245 | void *mem; |
| 246 | |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 247 | if (buf->size == size) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 248 | return 0; |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 249 | if (dmxdevfilter->state >= DMXDEV_STATE_GO) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 250 | return -EBUSY; |
| 251 | spin_lock_irq(&dmxdevfilter->dev->lock); |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 252 | mem = buf->data; |
| 253 | buf->data = NULL; |
| 254 | buf->size = size; |
Andreas Oberritter | 34731df | 2006-03-14 17:31:01 -0300 | [diff] [blame] | 255 | dvb_ringbuffer_flush(buf); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 256 | spin_unlock_irq(&dmxdevfilter->dev->lock); |
| 257 | vfree(mem); |
| 258 | |
| 259 | if (buf->size) { |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 260 | mem = vmalloc(dmxdevfilter->buffer.size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 261 | if (!mem) |
| 262 | return -ENOMEM; |
| 263 | spin_lock_irq(&dmxdevfilter->dev->lock); |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 264 | buf->data = mem; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 265 | spin_unlock_irq(&dmxdevfilter->dev->lock); |
| 266 | } |
| 267 | return 0; |
| 268 | } |
| 269 | |
| 270 | static void dvb_dmxdev_filter_timeout(unsigned long data) |
| 271 | { |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 272 | struct dmxdev_filter *dmxdevfilter = (struct dmxdev_filter *)data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 273 | |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 274 | dmxdevfilter->buffer.error = -ETIMEDOUT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 275 | spin_lock_irq(&dmxdevfilter->dev->lock); |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 276 | dmxdevfilter->state = DMXDEV_STATE_TIMEDOUT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 277 | spin_unlock_irq(&dmxdevfilter->dev->lock); |
| 278 | wake_up(&dmxdevfilter->buffer.queue); |
| 279 | } |
| 280 | |
| 281 | static void dvb_dmxdev_filter_timer(struct dmxdev_filter *dmxdevfilter) |
| 282 | { |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 283 | struct dmx_sct_filter_params *para = &dmxdevfilter->params.sec; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 284 | |
| 285 | del_timer(&dmxdevfilter->timer); |
| 286 | if (para->timeout) { |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 287 | dmxdevfilter->timer.function = dvb_dmxdev_filter_timeout; |
| 288 | dmxdevfilter->timer.data = (unsigned long)dmxdevfilter; |
| 289 | dmxdevfilter->timer.expires = |
| 290 | jiffies + 1 + (HZ / 2 + HZ * para->timeout) / 1000; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 291 | add_timer(&dmxdevfilter->timer); |
| 292 | } |
| 293 | } |
| 294 | |
| 295 | static int dvb_dmxdev_section_callback(const u8 *buffer1, size_t buffer1_len, |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 296 | const u8 *buffer2, size_t buffer2_len, |
| 297 | struct dmx_section_filter *filter, |
| 298 | enum dmx_success success) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 299 | { |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 300 | struct dmxdev_filter *dmxdevfilter = filter->priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 301 | int ret; |
| 302 | |
| 303 | if (dmxdevfilter->buffer.error) { |
| 304 | wake_up(&dmxdevfilter->buffer.queue); |
| 305 | return 0; |
| 306 | } |
| 307 | spin_lock(&dmxdevfilter->dev->lock); |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 308 | if (dmxdevfilter->state != DMXDEV_STATE_GO) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 309 | spin_unlock(&dmxdevfilter->dev->lock); |
| 310 | return 0; |
| 311 | } |
| 312 | del_timer(&dmxdevfilter->timer); |
| 313 | dprintk("dmxdev: section callback %02x %02x %02x %02x %02x %02x\n", |
| 314 | buffer1[0], buffer1[1], |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 315 | buffer1[2], buffer1[3], buffer1[4], buffer1[5]); |
| 316 | ret = dvb_dmxdev_buffer_write(&dmxdevfilter->buffer, buffer1, |
| 317 | buffer1_len); |
| 318 | if (ret == buffer1_len) { |
| 319 | ret = dvb_dmxdev_buffer_write(&dmxdevfilter->buffer, buffer2, |
| 320 | buffer2_len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 321 | } |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 322 | if (ret < 0) { |
Andreas Oberritter | 34731df | 2006-03-14 17:31:01 -0300 | [diff] [blame] | 323 | dvb_ringbuffer_flush(&dmxdevfilter->buffer); |
| 324 | dmxdevfilter->buffer.error = ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 325 | } |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 326 | if (dmxdevfilter->params.sec.flags & DMX_ONESHOT) |
| 327 | dmxdevfilter->state = DMXDEV_STATE_DONE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 328 | spin_unlock(&dmxdevfilter->dev->lock); |
| 329 | wake_up(&dmxdevfilter->buffer.queue); |
| 330 | return 0; |
| 331 | } |
| 332 | |
| 333 | static int dvb_dmxdev_ts_callback(const u8 *buffer1, size_t buffer1_len, |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 334 | const u8 *buffer2, size_t buffer2_len, |
| 335 | struct dmx_ts_feed *feed, |
| 336 | enum dmx_success success) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 337 | { |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 338 | struct dmxdev_filter *dmxdevfilter = feed->priv; |
Andreas Oberritter | 34731df | 2006-03-14 17:31:01 -0300 | [diff] [blame] | 339 | struct dvb_ringbuffer *buffer; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 340 | int ret; |
| 341 | |
| 342 | spin_lock(&dmxdevfilter->dev->lock); |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 343 | if (dmxdevfilter->params.pes.output == DMX_OUT_DECODER) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 344 | spin_unlock(&dmxdevfilter->dev->lock); |
| 345 | return 0; |
| 346 | } |
| 347 | |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 348 | if (dmxdevfilter->params.pes.output == DMX_OUT_TAP) |
| 349 | buffer = &dmxdevfilter->buffer; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 350 | else |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 351 | buffer = &dmxdevfilter->dev->dvr_buffer; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 352 | if (buffer->error) { |
| 353 | spin_unlock(&dmxdevfilter->dev->lock); |
| 354 | wake_up(&buffer->queue); |
| 355 | return 0; |
| 356 | } |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 357 | ret = dvb_dmxdev_buffer_write(buffer, buffer1, buffer1_len); |
| 358 | if (ret == buffer1_len) |
| 359 | ret = dvb_dmxdev_buffer_write(buffer, buffer2, buffer2_len); |
| 360 | if (ret < 0) { |
Andreas Oberritter | 34731df | 2006-03-14 17:31:01 -0300 | [diff] [blame] | 361 | dvb_ringbuffer_flush(buffer); |
| 362 | buffer->error = ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 363 | } |
| 364 | spin_unlock(&dmxdevfilter->dev->lock); |
| 365 | wake_up(&buffer->queue); |
| 366 | return 0; |
| 367 | } |
| 368 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 369 | /* stop feed but only mark the specified filter as stopped (state set) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 370 | static int dvb_dmxdev_feed_stop(struct dmxdev_filter *dmxdevfilter) |
| 371 | { |
| 372 | dvb_dmxdev_filter_state_set(dmxdevfilter, DMXDEV_STATE_SET); |
| 373 | |
| 374 | switch (dmxdevfilter->type) { |
| 375 | case DMXDEV_TYPE_SEC: |
| 376 | del_timer(&dmxdevfilter->timer); |
| 377 | dmxdevfilter->feed.sec->stop_filtering(dmxdevfilter->feed.sec); |
| 378 | break; |
| 379 | case DMXDEV_TYPE_PES: |
| 380 | dmxdevfilter->feed.ts->stop_filtering(dmxdevfilter->feed.ts); |
| 381 | break; |
| 382 | default: |
| 383 | return -EINVAL; |
| 384 | } |
| 385 | return 0; |
| 386 | } |
| 387 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 388 | /* start feed associated with the specified filter */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 389 | static int dvb_dmxdev_feed_start(struct dmxdev_filter *filter) |
| 390 | { |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 391 | dvb_dmxdev_filter_state_set(filter, DMXDEV_STATE_GO); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 392 | |
| 393 | switch (filter->type) { |
| 394 | case DMXDEV_TYPE_SEC: |
| 395 | return filter->feed.sec->start_filtering(filter->feed.sec); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 396 | case DMXDEV_TYPE_PES: |
| 397 | return filter->feed.ts->start_filtering(filter->feed.ts); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 398 | default: |
| 399 | return -EINVAL; |
| 400 | } |
| 401 | |
| 402 | return 0; |
| 403 | } |
| 404 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 405 | /* restart section feed if it has filters left associated with it, |
| 406 | otherwise release the feed */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 407 | static int dvb_dmxdev_feed_restart(struct dmxdev_filter *filter) |
| 408 | { |
| 409 | int i; |
| 410 | struct dmxdev *dmxdev = filter->dev; |
| 411 | u16 pid = filter->params.sec.pid; |
| 412 | |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 413 | for (i = 0; i < dmxdev->filternum; i++) |
| 414 | if (dmxdev->filter[i].state >= DMXDEV_STATE_GO && |
| 415 | dmxdev->filter[i].type == DMXDEV_TYPE_SEC && |
| 416 | dmxdev->filter[i].params.sec.pid == pid) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 417 | dvb_dmxdev_feed_start(&dmxdev->filter[i]); |
| 418 | return 0; |
| 419 | } |
| 420 | |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 421 | filter->dev->demux->release_section_feed(dmxdev->demux, |
| 422 | filter->feed.sec); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 423 | |
| 424 | return 0; |
| 425 | } |
| 426 | |
| 427 | static int dvb_dmxdev_filter_stop(struct dmxdev_filter *dmxdevfilter) |
| 428 | { |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 429 | if (dmxdevfilter->state < DMXDEV_STATE_GO) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 430 | return 0; |
| 431 | |
| 432 | switch (dmxdevfilter->type) { |
| 433 | case DMXDEV_TYPE_SEC: |
| 434 | if (!dmxdevfilter->feed.sec) |
| 435 | break; |
| 436 | dvb_dmxdev_feed_stop(dmxdevfilter); |
| 437 | if (dmxdevfilter->filter.sec) |
| 438 | dmxdevfilter->feed.sec-> |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 439 | release_filter(dmxdevfilter->feed.sec, |
| 440 | dmxdevfilter->filter.sec); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 441 | dvb_dmxdev_feed_restart(dmxdevfilter); |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 442 | dmxdevfilter->feed.sec = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 443 | break; |
| 444 | case DMXDEV_TYPE_PES: |
| 445 | if (!dmxdevfilter->feed.ts) |
| 446 | break; |
| 447 | dvb_dmxdev_feed_stop(dmxdevfilter); |
| 448 | dmxdevfilter->dev->demux-> |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 449 | release_ts_feed(dmxdevfilter->dev->demux, |
| 450 | dmxdevfilter->feed.ts); |
| 451 | dmxdevfilter->feed.ts = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 452 | break; |
| 453 | default: |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 454 | if (dmxdevfilter->state == DMXDEV_STATE_ALLOCATED) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 455 | return 0; |
| 456 | return -EINVAL; |
| 457 | } |
Andreas Oberritter | 34731df | 2006-03-14 17:31:01 -0300 | [diff] [blame] | 458 | |
| 459 | dvb_ringbuffer_flush(&dmxdevfilter->buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 460 | return 0; |
| 461 | } |
| 462 | |
| 463 | static inline int dvb_dmxdev_filter_reset(struct dmxdev_filter *dmxdevfilter) |
| 464 | { |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 465 | if (dmxdevfilter->state < DMXDEV_STATE_SET) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 466 | return 0; |
| 467 | |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 468 | dmxdevfilter->type = DMXDEV_TYPE_NONE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 469 | dvb_dmxdev_filter_state_set(dmxdevfilter, DMXDEV_STATE_ALLOCATED); |
| 470 | return 0; |
| 471 | } |
| 472 | |
| 473 | static int dvb_dmxdev_filter_start(struct dmxdev_filter *filter) |
| 474 | { |
| 475 | struct dmxdev *dmxdev = filter->dev; |
| 476 | void *mem; |
| 477 | int ret, i; |
| 478 | |
| 479 | if (filter->state < DMXDEV_STATE_SET) |
| 480 | return -EINVAL; |
| 481 | |
| 482 | if (filter->state >= DMXDEV_STATE_GO) |
| 483 | dvb_dmxdev_filter_stop(filter); |
| 484 | |
Andreas Oberritter | 34731df | 2006-03-14 17:31:01 -0300 | [diff] [blame] | 485 | if (!filter->buffer.data) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 486 | mem = vmalloc(filter->buffer.size); |
Andreas Oberritter | 34731df | 2006-03-14 17:31:01 -0300 | [diff] [blame] | 487 | if (!mem) |
| 488 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 489 | spin_lock_irq(&filter->dev->lock); |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 490 | filter->buffer.data = mem; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 491 | spin_unlock_irq(&filter->dev->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 492 | } |
| 493 | |
Andreas Oberritter | 34731df | 2006-03-14 17:31:01 -0300 | [diff] [blame] | 494 | dvb_ringbuffer_flush(&filter->buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 495 | |
| 496 | switch (filter->type) { |
| 497 | case DMXDEV_TYPE_SEC: |
| 498 | { |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 499 | struct dmx_sct_filter_params *para = &filter->params.sec; |
| 500 | struct dmx_section_filter **secfilter = &filter->filter.sec; |
| 501 | struct dmx_section_feed **secfeed = &filter->feed.sec; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 502 | |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 503 | *secfilter = NULL; |
| 504 | *secfeed = NULL; |
| 505 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 506 | |
| 507 | /* find active filter/feed with same PID */ |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 508 | for (i = 0; i < dmxdev->filternum; i++) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 509 | if (dmxdev->filter[i].state >= DMXDEV_STATE_GO && |
Andreas Oberritter | 09794a6 | 2006-03-10 15:21:28 -0300 | [diff] [blame] | 510 | dmxdev->filter[i].type == DMXDEV_TYPE_SEC && |
| 511 | dmxdev->filter[i].params.sec.pid == para->pid) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 512 | *secfeed = dmxdev->filter[i].feed.sec; |
| 513 | break; |
| 514 | } |
| 515 | } |
| 516 | |
| 517 | /* if no feed found, try to allocate new one */ |
| 518 | if (!*secfeed) { |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 519 | ret = dmxdev->demux->allocate_section_feed(dmxdev->demux, |
| 520 | secfeed, |
| 521 | dvb_dmxdev_section_callback); |
| 522 | if (ret < 0) { |
| 523 | printk("DVB (%s): could not alloc feed\n", |
| 524 | __FUNCTION__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 525 | return ret; |
| 526 | } |
| 527 | |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 528 | ret = (*secfeed)->set(*secfeed, para->pid, 32768, |
| 529 | (para->flags & DMX_CHECK_CRC) ? 1 : 0); |
| 530 | if (ret < 0) { |
| 531 | printk("DVB (%s): could not set feed\n", |
| 532 | __FUNCTION__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 533 | dvb_dmxdev_feed_restart(filter); |
| 534 | return ret; |
| 535 | } |
| 536 | } else { |
| 537 | dvb_dmxdev_feed_stop(filter); |
| 538 | } |
| 539 | |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 540 | ret = (*secfeed)->allocate_filter(*secfeed, secfilter); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 541 | if (ret < 0) { |
| 542 | dvb_dmxdev_feed_restart(filter); |
| 543 | filter->feed.sec->start_filtering(*secfeed); |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 544 | dprintk("could not get filter\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 545 | return ret; |
| 546 | } |
| 547 | |
| 548 | (*secfilter)->priv = filter; |
| 549 | |
| 550 | memcpy(&((*secfilter)->filter_value[3]), |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 551 | &(para->filter.filter[1]), DMX_FILTER_SIZE - 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 552 | memcpy(&(*secfilter)->filter_mask[3], |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 553 | ¶->filter.mask[1], DMX_FILTER_SIZE - 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 554 | memcpy(&(*secfilter)->filter_mode[3], |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 555 | ¶->filter.mode[1], DMX_FILTER_SIZE - 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 556 | |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 557 | (*secfilter)->filter_value[0] = para->filter.filter[0]; |
| 558 | (*secfilter)->filter_mask[0] = para->filter.mask[0]; |
| 559 | (*secfilter)->filter_mode[0] = para->filter.mode[0]; |
| 560 | (*secfilter)->filter_mask[1] = 0; |
| 561 | (*secfilter)->filter_mask[2] = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 562 | |
| 563 | filter->todo = 0; |
| 564 | |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 565 | ret = filter->feed.sec->start_filtering(filter->feed.sec); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 566 | if (ret < 0) |
| 567 | return ret; |
| 568 | |
| 569 | dvb_dmxdev_filter_timer(filter); |
| 570 | break; |
| 571 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 572 | case DMXDEV_TYPE_PES: |
| 573 | { |
| 574 | struct timespec timeout = { 0 }; |
| 575 | struct dmx_pes_filter_params *para = &filter->params.pes; |
| 576 | dmx_output_t otype; |
| 577 | int ret; |
| 578 | int ts_type; |
| 579 | enum dmx_ts_pes ts_pes; |
| 580 | struct dmx_ts_feed **tsfeed = &filter->feed.ts; |
| 581 | |
| 582 | filter->feed.ts = NULL; |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 583 | otype = para->output; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 584 | |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 585 | ts_pes = (enum dmx_ts_pes)para->pes_type; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 586 | |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 587 | if (ts_pes < DMX_PES_OTHER) |
| 588 | ts_type = TS_DECODER; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 589 | else |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 590 | ts_type = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 591 | |
| 592 | if (otype == DMX_OUT_TS_TAP) |
| 593 | ts_type |= TS_PACKET; |
| 594 | |
| 595 | if (otype == DMX_OUT_TAP) |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 596 | ts_type |= TS_PAYLOAD_ONLY | TS_PACKET; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 597 | |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 598 | ret = dmxdev->demux->allocate_ts_feed(dmxdev->demux, |
| 599 | tsfeed, |
| 600 | dvb_dmxdev_ts_callback); |
| 601 | if (ret < 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 602 | return ret; |
| 603 | |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 604 | (*tsfeed)->priv = filter; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 605 | |
| 606 | ret = (*tsfeed)->set(*tsfeed, para->pid, ts_type, ts_pes, |
Andreas Oberritter | 5d2cd16 | 2005-09-09 13:02:24 -0700 | [diff] [blame] | 607 | 32768, timeout); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 608 | if (ret < 0) { |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 609 | dmxdev->demux->release_ts_feed(dmxdev->demux, |
| 610 | *tsfeed); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 611 | return ret; |
| 612 | } |
| 613 | |
| 614 | ret = filter->feed.ts->start_filtering(filter->feed.ts); |
Peter Beutner | 7619792 | 2005-07-07 17:57:38 -0700 | [diff] [blame] | 615 | if (ret < 0) { |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 616 | dmxdev->demux->release_ts_feed(dmxdev->demux, |
| 617 | *tsfeed); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 618 | return ret; |
Peter Beutner | 7619792 | 2005-07-07 17:57:38 -0700 | [diff] [blame] | 619 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 620 | |
| 621 | break; |
| 622 | } |
| 623 | default: |
| 624 | return -EINVAL; |
| 625 | } |
| 626 | |
| 627 | dvb_dmxdev_filter_state_set(filter, DMXDEV_STATE_GO); |
| 628 | return 0; |
| 629 | } |
| 630 | |
| 631 | static int dvb_demux_open(struct inode *inode, struct file *file) |
| 632 | { |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 633 | struct dvb_device *dvbdev = file->private_data; |
| 634 | struct dmxdev *dmxdev = dvbdev->priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 635 | int i; |
| 636 | struct dmxdev_filter *dmxdevfilter; |
| 637 | |
| 638 | if (!dmxdev->filter) |
| 639 | return -EINVAL; |
| 640 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 641 | if (mutex_lock_interruptible(&dmxdev->mutex)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 642 | return -ERESTARTSYS; |
| 643 | |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 644 | for (i = 0; i < dmxdev->filternum; i++) |
| 645 | if (dmxdev->filter[i].state == DMXDEV_STATE_FREE) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 646 | break; |
| 647 | |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 648 | if (i == dmxdev->filternum) { |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 649 | mutex_unlock(&dmxdev->mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 650 | return -EMFILE; |
| 651 | } |
| 652 | |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 653 | dmxdevfilter = &dmxdev->filter[i]; |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 654 | mutex_init(&dmxdevfilter->mutex); |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 655 | file->private_data = dmxdevfilter; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 656 | |
Andreas Oberritter | 34731df | 2006-03-14 17:31:01 -0300 | [diff] [blame] | 657 | dvb_ringbuffer_init(&dmxdevfilter->buffer, NULL, 8192); |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 658 | dmxdevfilter->type = DMXDEV_TYPE_NONE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 659 | dvb_dmxdev_filter_state_set(dmxdevfilter, DMXDEV_STATE_ALLOCATED); |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 660 | dmxdevfilter->feed.ts = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 661 | init_timer(&dmxdevfilter->timer); |
| 662 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 663 | mutex_unlock(&dmxdev->mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 664 | return 0; |
| 665 | } |
| 666 | |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 667 | static int dvb_dmxdev_filter_free(struct dmxdev *dmxdev, |
| 668 | struct dmxdev_filter *dmxdevfilter) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 669 | { |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 670 | if (mutex_lock_interruptible(&dmxdev->mutex)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 671 | return -ERESTARTSYS; |
| 672 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 673 | if (mutex_lock_interruptible(&dmxdevfilter->mutex)) { |
| 674 | mutex_unlock(&dmxdev->mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 675 | return -ERESTARTSYS; |
| 676 | } |
| 677 | |
| 678 | dvb_dmxdev_filter_stop(dmxdevfilter); |
| 679 | dvb_dmxdev_filter_reset(dmxdevfilter); |
| 680 | |
| 681 | if (dmxdevfilter->buffer.data) { |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 682 | void *mem = dmxdevfilter->buffer.data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 683 | |
| 684 | spin_lock_irq(&dmxdev->lock); |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 685 | dmxdevfilter->buffer.data = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 686 | spin_unlock_irq(&dmxdev->lock); |
| 687 | vfree(mem); |
| 688 | } |
| 689 | |
| 690 | dvb_dmxdev_filter_state_set(dmxdevfilter, DMXDEV_STATE_FREE); |
| 691 | wake_up(&dmxdevfilter->buffer.queue); |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 692 | mutex_unlock(&dmxdevfilter->mutex); |
| 693 | mutex_unlock(&dmxdev->mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 694 | return 0; |
| 695 | } |
| 696 | |
| 697 | static inline void invert_mode(dmx_filter_t *filter) |
| 698 | { |
| 699 | int i; |
| 700 | |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 701 | for (i = 0; i < DMX_FILTER_SIZE; i++) |
| 702 | filter->mode[i] ^= 0xff; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 703 | } |
| 704 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 705 | static int dvb_dmxdev_filter_set(struct dmxdev *dmxdev, |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 706 | struct dmxdev_filter *dmxdevfilter, |
| 707 | struct dmx_sct_filter_params *params) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 708 | { |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 709 | dprintk("function : %s\n", __FUNCTION__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 710 | |
| 711 | dvb_dmxdev_filter_stop(dmxdevfilter); |
| 712 | |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 713 | dmxdevfilter->type = DMXDEV_TYPE_SEC; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 714 | memcpy(&dmxdevfilter->params.sec, |
| 715 | params, sizeof(struct dmx_sct_filter_params)); |
| 716 | invert_mode(&dmxdevfilter->params.sec.filter); |
| 717 | dvb_dmxdev_filter_state_set(dmxdevfilter, DMXDEV_STATE_SET); |
| 718 | |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 719 | if (params->flags & DMX_IMMEDIATE_START) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 720 | return dvb_dmxdev_filter_start(dmxdevfilter); |
| 721 | |
| 722 | return 0; |
| 723 | } |
| 724 | |
| 725 | static int dvb_dmxdev_pes_filter_set(struct dmxdev *dmxdev, |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 726 | struct dmxdev_filter *dmxdevfilter, |
| 727 | struct dmx_pes_filter_params *params) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 728 | { |
| 729 | dvb_dmxdev_filter_stop(dmxdevfilter); |
| 730 | |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 731 | if (params->pes_type > DMX_PES_OTHER || params->pes_type < 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 732 | return -EINVAL; |
| 733 | |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 734 | dmxdevfilter->type = DMXDEV_TYPE_PES; |
| 735 | memcpy(&dmxdevfilter->params, params, |
| 736 | sizeof(struct dmx_pes_filter_params)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 737 | |
| 738 | dvb_dmxdev_filter_state_set(dmxdevfilter, DMXDEV_STATE_SET); |
| 739 | |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 740 | if (params->flags & DMX_IMMEDIATE_START) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 741 | return dvb_dmxdev_filter_start(dmxdevfilter); |
| 742 | |
| 743 | return 0; |
| 744 | } |
| 745 | |
| 746 | static ssize_t dvb_dmxdev_read_sec(struct dmxdev_filter *dfil, |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 747 | struct file *file, char __user *buf, |
| 748 | size_t count, loff_t *ppos) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 749 | { |
| 750 | int result, hcount; |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 751 | int done = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 752 | |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 753 | if (dfil->todo <= 0) { |
| 754 | hcount = 3 + dfil->todo; |
| 755 | if (hcount > count) |
| 756 | hcount = count; |
| 757 | result = dvb_dmxdev_buffer_read(&dfil->buffer, |
| 758 | file->f_flags & O_NONBLOCK, |
| 759 | buf, hcount, ppos); |
| 760 | if (result < 0) { |
| 761 | dfil->todo = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 762 | return result; |
| 763 | } |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 764 | if (copy_from_user(dfil->secheader - dfil->todo, buf, result)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 765 | return -EFAULT; |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 766 | buf += result; |
| 767 | done = result; |
| 768 | count -= result; |
| 769 | dfil->todo -= result; |
| 770 | if (dfil->todo > -3) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 771 | return done; |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 772 | dfil->todo = ((dfil->secheader[1] << 8) | dfil->secheader[2]) & 0xfff; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 773 | if (!count) |
| 774 | return done; |
| 775 | } |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 776 | if (count > dfil->todo) |
| 777 | count = dfil->todo; |
| 778 | result = dvb_dmxdev_buffer_read(&dfil->buffer, |
| 779 | file->f_flags & O_NONBLOCK, |
| 780 | buf, count, ppos); |
| 781 | if (result < 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 782 | return result; |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 783 | dfil->todo -= result; |
| 784 | return (result + done); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 785 | } |
| 786 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 787 | static ssize_t |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 788 | dvb_demux_read(struct file *file, char __user *buf, size_t count, |
| 789 | loff_t *ppos) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 790 | { |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 791 | struct dmxdev_filter *dmxdevfilter = file->private_data; |
| 792 | int ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 793 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 794 | if (mutex_lock_interruptible(&dmxdevfilter->mutex)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 795 | return -ERESTARTSYS; |
| 796 | |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 797 | if (dmxdevfilter->type == DMXDEV_TYPE_SEC) |
| 798 | ret = dvb_dmxdev_read_sec(dmxdevfilter, file, buf, count, ppos); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 799 | else |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 800 | ret = dvb_dmxdev_buffer_read(&dmxdevfilter->buffer, |
| 801 | file->f_flags & O_NONBLOCK, |
| 802 | buf, count, ppos); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 803 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 804 | mutex_unlock(&dmxdevfilter->mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 805 | return ret; |
| 806 | } |
| 807 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 808 | static int dvb_demux_do_ioctl(struct inode *inode, struct file *file, |
| 809 | unsigned int cmd, void *parg) |
| 810 | { |
Peter Beutner | 3ec4a30 | 2005-07-07 17:57:39 -0700 | [diff] [blame] | 811 | struct dmxdev_filter *dmxdevfilter = file->private_data; |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 812 | struct dmxdev *dmxdev = dmxdevfilter->dev; |
| 813 | unsigned long arg = (unsigned long)parg; |
| 814 | int ret = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 815 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 816 | if (mutex_lock_interruptible(&dmxdev->mutex)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 817 | return -ERESTARTSYS; |
| 818 | |
| 819 | switch (cmd) { |
| 820 | case DMX_START: |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 821 | if (mutex_lock_interruptible(&dmxdevfilter->mutex)) { |
| 822 | mutex_unlock(&dmxdev->mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 823 | return -ERESTARTSYS; |
| 824 | } |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 825 | if (dmxdevfilter->state < DMXDEV_STATE_SET) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 826 | ret = -EINVAL; |
| 827 | else |
| 828 | ret = dvb_dmxdev_filter_start(dmxdevfilter); |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 829 | mutex_unlock(&dmxdevfilter->mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 830 | break; |
| 831 | |
| 832 | case DMX_STOP: |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 833 | if (mutex_lock_interruptible(&dmxdevfilter->mutex)) { |
| 834 | mutex_unlock(&dmxdev->mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 835 | return -ERESTARTSYS; |
| 836 | } |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 837 | ret = dvb_dmxdev_filter_stop(dmxdevfilter); |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 838 | mutex_unlock(&dmxdevfilter->mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 839 | break; |
| 840 | |
| 841 | case DMX_SET_FILTER: |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 842 | if (mutex_lock_interruptible(&dmxdevfilter->mutex)) { |
| 843 | mutex_unlock(&dmxdev->mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 844 | return -ERESTARTSYS; |
| 845 | } |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 846 | ret = dvb_dmxdev_filter_set(dmxdev, dmxdevfilter, parg); |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 847 | mutex_unlock(&dmxdevfilter->mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 848 | break; |
| 849 | |
| 850 | case DMX_SET_PES_FILTER: |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 851 | if (mutex_lock_interruptible(&dmxdevfilter->mutex)) { |
| 852 | mutex_unlock(&dmxdev->mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 853 | return -ERESTARTSYS; |
| 854 | } |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 855 | ret = dvb_dmxdev_pes_filter_set(dmxdev, dmxdevfilter, parg); |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 856 | mutex_unlock(&dmxdevfilter->mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 857 | break; |
| 858 | |
| 859 | case DMX_SET_BUFFER_SIZE: |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 860 | if (mutex_lock_interruptible(&dmxdevfilter->mutex)) { |
| 861 | mutex_unlock(&dmxdev->mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 862 | return -ERESTARTSYS; |
| 863 | } |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 864 | ret = dvb_dmxdev_set_buffer_size(dmxdevfilter, arg); |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 865 | mutex_unlock(&dmxdevfilter->mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 866 | break; |
| 867 | |
| 868 | case DMX_GET_EVENT: |
| 869 | break; |
| 870 | |
| 871 | case DMX_GET_PES_PIDS: |
| 872 | if (!dmxdev->demux->get_pes_pids) { |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 873 | ret = -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 874 | break; |
| 875 | } |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 876 | dmxdev->demux->get_pes_pids(dmxdev->demux, parg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 877 | break; |
| 878 | |
Andreas Oberritter | c051005 | 2005-09-09 13:02:21 -0700 | [diff] [blame] | 879 | case DMX_GET_CAPS: |
| 880 | if (!dmxdev->demux->get_caps) { |
| 881 | ret = -EINVAL; |
| 882 | break; |
| 883 | } |
| 884 | ret = dmxdev->demux->get_caps(dmxdev->demux, parg); |
| 885 | break; |
| 886 | |
| 887 | case DMX_SET_SOURCE: |
| 888 | if (!dmxdev->demux->set_source) { |
| 889 | ret = -EINVAL; |
| 890 | break; |
| 891 | } |
| 892 | ret = dmxdev->demux->set_source(dmxdev->demux, parg); |
| 893 | break; |
| 894 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 895 | case DMX_GET_STC: |
| 896 | if (!dmxdev->demux->get_stc) { |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 897 | ret = -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 898 | break; |
| 899 | } |
| 900 | ret = dmxdev->demux->get_stc(dmxdev->demux, |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 901 | ((struct dmx_stc *)parg)->num, |
| 902 | &((struct dmx_stc *)parg)->stc, |
| 903 | &((struct dmx_stc *)parg)->base); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 904 | break; |
| 905 | |
| 906 | default: |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 907 | ret = -EINVAL; |
| 908 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 909 | } |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 910 | mutex_unlock(&dmxdev->mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 911 | return ret; |
| 912 | } |
| 913 | |
| 914 | static int dvb_demux_ioctl(struct inode *inode, struct file *file, |
| 915 | unsigned int cmd, unsigned long arg) |
| 916 | { |
| 917 | return dvb_usercopy(inode, file, cmd, arg, dvb_demux_do_ioctl); |
| 918 | } |
| 919 | |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 920 | static unsigned int dvb_demux_poll(struct file *file, poll_table *wait) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 921 | { |
Peter Beutner | 3ec4a30 | 2005-07-07 17:57:39 -0700 | [diff] [blame] | 922 | struct dmxdev_filter *dmxdevfilter = file->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 923 | unsigned int mask = 0; |
| 924 | |
| 925 | if (!dmxdevfilter) |
| 926 | return -EINVAL; |
| 927 | |
| 928 | poll_wait(file, &dmxdevfilter->buffer.queue, wait); |
| 929 | |
| 930 | if (dmxdevfilter->state != DMXDEV_STATE_GO && |
| 931 | dmxdevfilter->state != DMXDEV_STATE_DONE && |
| 932 | dmxdevfilter->state != DMXDEV_STATE_TIMEDOUT) |
| 933 | return 0; |
| 934 | |
| 935 | if (dmxdevfilter->buffer.error) |
| 936 | mask |= (POLLIN | POLLRDNORM | POLLPRI | POLLERR); |
| 937 | |
Andreas Oberritter | 34731df | 2006-03-14 17:31:01 -0300 | [diff] [blame] | 938 | if (!dvb_ringbuffer_empty(&dmxdevfilter->buffer)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 939 | mask |= (POLLIN | POLLRDNORM | POLLPRI); |
| 940 | |
| 941 | return mask; |
| 942 | } |
| 943 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 944 | static int dvb_demux_release(struct inode *inode, struct file *file) |
| 945 | { |
Peter Beutner | 3ec4a30 | 2005-07-07 17:57:39 -0700 | [diff] [blame] | 946 | struct dmxdev_filter *dmxdevfilter = file->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 947 | struct dmxdev *dmxdev = dmxdevfilter->dev; |
| 948 | |
| 949 | return dvb_dmxdev_filter_free(dmxdev, dmxdevfilter); |
| 950 | } |
| 951 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 952 | static struct file_operations dvb_demux_fops = { |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 953 | .owner = THIS_MODULE, |
| 954 | .read = dvb_demux_read, |
| 955 | .ioctl = dvb_demux_ioctl, |
| 956 | .open = dvb_demux_open, |
| 957 | .release = dvb_demux_release, |
| 958 | .poll = dvb_demux_poll, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 959 | }; |
| 960 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 961 | static struct dvb_device dvbdev_demux = { |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 962 | .priv = NULL, |
| 963 | .users = 1, |
| 964 | .writers = 1, |
| 965 | .fops = &dvb_demux_fops |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 966 | }; |
| 967 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 968 | static int dvb_dvr_do_ioctl(struct inode *inode, struct file *file, |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 969 | unsigned int cmd, void *parg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 970 | { |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 971 | struct dvb_device *dvbdev = file->private_data; |
| 972 | struct dmxdev *dmxdev = dvbdev->priv; |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 973 | int ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 974 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 975 | if (mutex_lock_interruptible(&dmxdev->mutex)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 976 | return -ERESTARTSYS; |
| 977 | |
| 978 | switch (cmd) { |
| 979 | case DMX_SET_BUFFER_SIZE: |
| 980 | // FIXME: implement |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 981 | ret = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 982 | break; |
| 983 | |
| 984 | default: |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 985 | ret = -EINVAL; |
| 986 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 987 | } |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 988 | mutex_unlock(&dmxdev->mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 989 | return ret; |
| 990 | } |
| 991 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 992 | static int dvb_dvr_ioctl(struct inode *inode, struct file *file, |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 993 | unsigned int cmd, unsigned long arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 994 | { |
| 995 | return dvb_usercopy(inode, file, cmd, arg, dvb_dvr_do_ioctl); |
| 996 | } |
| 997 | |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 998 | static unsigned int dvb_dvr_poll(struct file *file, poll_table *wait) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 999 | { |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 1000 | struct dvb_device *dvbdev = file->private_data; |
| 1001 | struct dmxdev *dmxdev = dvbdev->priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1002 | unsigned int mask = 0; |
| 1003 | |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 1004 | dprintk("function : %s\n", __FUNCTION__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1005 | |
| 1006 | poll_wait(file, &dmxdev->dvr_buffer.queue, wait); |
| 1007 | |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 1008 | if ((file->f_flags & O_ACCMODE) == O_RDONLY) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1009 | if (dmxdev->dvr_buffer.error) |
| 1010 | mask |= (POLLIN | POLLRDNORM | POLLPRI | POLLERR); |
| 1011 | |
Andreas Oberritter | 34731df | 2006-03-14 17:31:01 -0300 | [diff] [blame] | 1012 | if (!dvb_ringbuffer_empty(&dmxdev->dvr_buffer)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1013 | mask |= (POLLIN | POLLRDNORM | POLLPRI); |
| 1014 | } else |
| 1015 | mask |= (POLLOUT | POLLWRNORM | POLLPRI); |
| 1016 | |
| 1017 | return mask; |
| 1018 | } |
| 1019 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1020 | static struct file_operations dvb_dvr_fops = { |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 1021 | .owner = THIS_MODULE, |
| 1022 | .read = dvb_dvr_read, |
| 1023 | .write = dvb_dvr_write, |
| 1024 | .ioctl = dvb_dvr_ioctl, |
| 1025 | .open = dvb_dvr_open, |
| 1026 | .release = dvb_dvr_release, |
| 1027 | .poll = dvb_dvr_poll, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1028 | }; |
| 1029 | |
| 1030 | static struct dvb_device dvbdev_dvr = { |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 1031 | .priv = NULL, |
| 1032 | .users = 1, |
| 1033 | .writers = 1, |
| 1034 | .fops = &dvb_dvr_fops |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1035 | }; |
| 1036 | |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 1037 | int dvb_dmxdev_init(struct dmxdev *dmxdev, struct dvb_adapter *dvb_adapter) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1038 | { |
| 1039 | int i; |
| 1040 | |
| 1041 | if (dmxdev->demux->open(dmxdev->demux) < 0) |
| 1042 | return -EUSERS; |
| 1043 | |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 1044 | dmxdev->filter = vmalloc(dmxdev->filternum * sizeof(struct dmxdev_filter)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1045 | if (!dmxdev->filter) |
| 1046 | return -ENOMEM; |
| 1047 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 1048 | mutex_init(&dmxdev->mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1049 | spin_lock_init(&dmxdev->lock); |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 1050 | for (i = 0; i < dmxdev->filternum; i++) { |
| 1051 | dmxdev->filter[i].dev = dmxdev; |
| 1052 | dmxdev->filter[i].buffer.data = NULL; |
| 1053 | dvb_dmxdev_filter_state_set(&dmxdev->filter[i], |
| 1054 | DMXDEV_STATE_FREE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1055 | } |
| 1056 | |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 1057 | dvb_register_device(dvb_adapter, &dmxdev->dvbdev, &dvbdev_demux, dmxdev, |
| 1058 | DVB_DEVICE_DEMUX); |
| 1059 | dvb_register_device(dvb_adapter, &dmxdev->dvr_dvbdev, &dvbdev_dvr, |
| 1060 | dmxdev, DVB_DEVICE_DVR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1061 | |
Andreas Oberritter | 34731df | 2006-03-14 17:31:01 -0300 | [diff] [blame] | 1062 | dvb_ringbuffer_init(&dmxdev->dvr_buffer, NULL, 8192); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1063 | |
| 1064 | return 0; |
| 1065 | } |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 1066 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1067 | EXPORT_SYMBOL(dvb_dmxdev_init); |
| 1068 | |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 1069 | void dvb_dmxdev_release(struct dmxdev *dmxdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1070 | { |
| 1071 | dvb_unregister_device(dmxdev->dvbdev); |
| 1072 | dvb_unregister_device(dmxdev->dvr_dvbdev); |
| 1073 | |
| 1074 | vfree(dmxdev->filter); |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 1075 | dmxdev->filter = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1076 | dmxdev->demux->close(dmxdev->demux); |
| 1077 | } |
Andreas Oberritter | f705e6e | 2006-03-10 15:22:31 -0300 | [diff] [blame] | 1078 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1079 | EXPORT_SYMBOL(dvb_dmxdev_release); |