Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * dvb_frontend.c: DVB frontend tuning interface/thread |
| 3 | * |
| 4 | * |
| 5 | * Copyright (C) 1999-2001 Ralph Metzler |
| 6 | * Marcus Metzler |
| 7 | * Holger Waechtler |
| 8 | * for convergence integrated media GmbH |
| 9 | * |
| 10 | * Copyright (C) 2004 Andrew de Quincey (tuning thread cleanup) |
| 11 | * |
| 12 | * This program is free software; you can redistribute it and/or |
| 13 | * modify it under the terms of the GNU General Public License |
| 14 | * as published by the Free Software Foundation; either version 2 |
| 15 | * of the License, or (at your option) any later version. |
| 16 | * |
| 17 | * This program is distributed in the hope that it will be useful, |
| 18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 20 | * GNU General Public License for more details. |
| 21 | * |
| 22 | * You should have received a copy of the GNU General Public License |
| 23 | * along with this program; if not, write to the Free Software |
| 24 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 25 | * Or, point your browser to http://www.gnu.org/copyleft/gpl.html |
| 26 | */ |
| 27 | |
| 28 | #include <linux/string.h> |
| 29 | #include <linux/kernel.h> |
| 30 | #include <linux/sched.h> |
| 31 | #include <linux/wait.h> |
| 32 | #include <linux/slab.h> |
| 33 | #include <linux/poll.h> |
| 34 | #include <linux/module.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 35 | #include <linux/list.h> |
Nigel Cunningham | 7dfb710 | 2006-12-06 20:34:23 -0800 | [diff] [blame] | 36 | #include <linux/freezer.h> |
Johannes Stezenbach | cc89c22 | 2005-06-23 22:02:39 -0700 | [diff] [blame] | 37 | #include <linux/jiffies.h> |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 38 | #include <linux/kthread.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 39 | #include <asm/processor.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 40 | |
| 41 | #include "dvb_frontend.h" |
| 42 | #include "dvbdev.h" |
Steven Toth | eacf8d8 | 2008-09-26 00:29:49 -0300 | [diff] [blame^] | 43 | #include <linux/dvb/version.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | |
| 45 | static int dvb_frontend_debug; |
Oliver Endriss | 849be2c | 2007-08-25 12:22:16 -0300 | [diff] [blame] | 46 | static int dvb_shutdown_timeout; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 47 | static int dvb_force_auto_inversion; |
| 48 | static int dvb_override_tune_delay; |
| 49 | static int dvb_powerdown_on_sleep = 1; |
| 50 | |
| 51 | module_param_named(frontend_debug, dvb_frontend_debug, int, 0644); |
Johannes Stezenbach | f4f009a | 2005-05-16 21:54:21 -0700 | [diff] [blame] | 52 | MODULE_PARM_DESC(frontend_debug, "Turn on/off frontend core debugging (default:off)."); |
Manu Abraham | 6baad3f | 2006-02-27 00:09:32 -0300 | [diff] [blame] | 53 | module_param(dvb_shutdown_timeout, int, 0644); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 54 | MODULE_PARM_DESC(dvb_shutdown_timeout, "wait <shutdown_timeout> seconds after close() before suspending hardware"); |
Manu Abraham | 6baad3f | 2006-02-27 00:09:32 -0300 | [diff] [blame] | 55 | module_param(dvb_force_auto_inversion, int, 0644); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 56 | MODULE_PARM_DESC(dvb_force_auto_inversion, "0: normal (default), 1: INVERSION_AUTO forced always"); |
Manu Abraham | 6baad3f | 2006-02-27 00:09:32 -0300 | [diff] [blame] | 57 | module_param(dvb_override_tune_delay, int, 0644); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 58 | MODULE_PARM_DESC(dvb_override_tune_delay, "0: normal (default), >0 => delay in milliseconds to wait for lock after a tune attempt"); |
Manu Abraham | 6baad3f | 2006-02-27 00:09:32 -0300 | [diff] [blame] | 59 | module_param(dvb_powerdown_on_sleep, int, 0644); |
Uwe Bugla | a855857 | 2006-04-11 10:21:37 -0300 | [diff] [blame] | 60 | MODULE_PARM_DESC(dvb_powerdown_on_sleep, "0: do not power down, 1: turn LNB voltage off on sleep (default)"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 61 | |
| 62 | #define dprintk if (dvb_frontend_debug) printk |
| 63 | |
| 64 | #define FESTATE_IDLE 1 |
| 65 | #define FESTATE_RETUNE 2 |
| 66 | #define FESTATE_TUNING_FAST 4 |
| 67 | #define FESTATE_TUNING_SLOW 8 |
| 68 | #define FESTATE_TUNED 16 |
| 69 | #define FESTATE_ZIGZAG_FAST 32 |
| 70 | #define FESTATE_ZIGZAG_SLOW 64 |
| 71 | #define FESTATE_DISEQC 128 |
| 72 | #define FESTATE_WAITFORLOCK (FESTATE_TUNING_FAST | FESTATE_TUNING_SLOW | FESTATE_ZIGZAG_FAST | FESTATE_ZIGZAG_SLOW | FESTATE_DISEQC) |
| 73 | #define FESTATE_SEARCHING_FAST (FESTATE_TUNING_FAST | FESTATE_ZIGZAG_FAST) |
| 74 | #define FESTATE_SEARCHING_SLOW (FESTATE_TUNING_SLOW | FESTATE_ZIGZAG_SLOW) |
| 75 | #define FESTATE_LOSTLOCK (FESTATE_ZIGZAG_FAST | FESTATE_ZIGZAG_SLOW) |
Manu Abraham | 0249ef1 | 2006-06-21 10:27:31 -0300 | [diff] [blame] | 76 | |
| 77 | #define FE_ALGO_HW 1 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 78 | /* |
| 79 | * FESTATE_IDLE. No tuning parameters have been supplied and the loop is idling. |
| 80 | * FESTATE_RETUNE. Parameters have been supplied, but we have not yet performed the first tune. |
| 81 | * FESTATE_TUNING_FAST. Tuning parameters have been supplied and fast zigzag scan is in progress. |
| 82 | * FESTATE_TUNING_SLOW. Tuning parameters have been supplied. Fast zigzag failed, so we're trying again, but slower. |
| 83 | * FESTATE_TUNED. The frontend has successfully locked on. |
| 84 | * FESTATE_ZIGZAG_FAST. The lock has been lost, and a fast zigzag has been initiated to try and regain it. |
| 85 | * FESTATE_ZIGZAG_SLOW. The lock has been lost. Fast zigzag has been failed, so we're trying again, but slower. |
| 86 | * FESTATE_DISEQC. A DISEQC command has just been issued. |
| 87 | * FESTATE_WAITFORLOCK. When we're waiting for a lock. |
| 88 | * FESTATE_SEARCHING_FAST. When we're searching for a signal using a fast zigzag scan. |
| 89 | * FESTATE_SEARCHING_SLOW. When we're searching for a signal using a slow zigzag scan. |
| 90 | * FESTATE_LOSTLOCK. When the lock has been lost, and we're searching it again. |
| 91 | */ |
| 92 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 93 | static DEFINE_MUTEX(frontend_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 94 | |
| 95 | struct dvb_frontend_private { |
| 96 | |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 97 | /* thread/frontend values */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 98 | struct dvb_device *dvbdev; |
| 99 | struct dvb_frontend_parameters parameters; |
| 100 | struct dvb_fe_events events; |
| 101 | struct semaphore sem; |
| 102 | struct list_head list_head; |
| 103 | wait_queue_head_t wait_queue; |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 104 | struct task_struct *thread; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 105 | unsigned long release_jiffies; |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 106 | unsigned int exit; |
| 107 | unsigned int wakeup; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 108 | fe_status_t status; |
Peter Beutner | 400b708 | 2006-01-09 15:32:43 -0200 | [diff] [blame] | 109 | unsigned long tune_mode_flags; |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 110 | unsigned int delay; |
Andrew de Quincey | 86f40cc | 2006-03-30 15:53:35 -0300 | [diff] [blame] | 111 | unsigned int reinitialise; |
Andrew de Quincey | 6445401 | 2006-04-06 14:32:23 -0300 | [diff] [blame] | 112 | int tone; |
| 113 | int voltage; |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 114 | |
| 115 | /* swzigzag values */ |
| 116 | unsigned int state; |
| 117 | unsigned int bending; |
| 118 | int lnb_drift; |
| 119 | unsigned int inversion; |
| 120 | unsigned int auto_step; |
| 121 | unsigned int auto_sub_step; |
| 122 | unsigned int started_auto_step; |
| 123 | unsigned int min_delay; |
| 124 | unsigned int max_drift; |
| 125 | unsigned int step_size; |
| 126 | int quality; |
| 127 | unsigned int check_wrapped; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 128 | }; |
| 129 | |
Andrew de Quincey | 86f40cc | 2006-03-30 15:53:35 -0300 | [diff] [blame] | 130 | static void dvb_frontend_wakeup(struct dvb_frontend *fe); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 131 | |
| 132 | static void dvb_frontend_add_event(struct dvb_frontend *fe, fe_status_t status) |
| 133 | { |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 134 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 135 | struct dvb_fe_events *events = &fepriv->events; |
| 136 | struct dvb_frontend_event *e; |
| 137 | int wp; |
| 138 | |
Harvey Harrison | 46b4f7c | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 139 | dprintk ("%s\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 140 | |
Matthias Kaehlcke | 03b7612 | 2007-07-30 14:58:10 -0300 | [diff] [blame] | 141 | if (mutex_lock_interruptible (&events->mtx)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 142 | return; |
| 143 | |
| 144 | wp = (events->eventw + 1) % MAX_EVENT; |
| 145 | |
| 146 | if (wp == events->eventr) { |
| 147 | events->overflow = 1; |
| 148 | events->eventr = (events->eventr + 1) % MAX_EVENT; |
| 149 | } |
| 150 | |
| 151 | e = &events->events[events->eventw]; |
| 152 | |
| 153 | memcpy (&e->parameters, &fepriv->parameters, |
| 154 | sizeof (struct dvb_frontend_parameters)); |
| 155 | |
| 156 | if (status & FE_HAS_LOCK) |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 157 | if (fe->ops.get_frontend) |
| 158 | fe->ops.get_frontend(fe, &e->parameters); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 159 | |
| 160 | events->eventw = wp; |
| 161 | |
Matthias Kaehlcke | 03b7612 | 2007-07-30 14:58:10 -0300 | [diff] [blame] | 162 | mutex_unlock(&events->mtx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 163 | |
| 164 | e->status = status; |
| 165 | |
| 166 | wake_up_interruptible (&events->wait_queue); |
| 167 | } |
| 168 | |
| 169 | static int dvb_frontend_get_event(struct dvb_frontend *fe, |
| 170 | struct dvb_frontend_event *event, int flags) |
| 171 | { |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 172 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 173 | struct dvb_fe_events *events = &fepriv->events; |
| 174 | |
Harvey Harrison | 46b4f7c | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 175 | dprintk ("%s\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 176 | |
| 177 | if (events->overflow) { |
| 178 | events->overflow = 0; |
| 179 | return -EOVERFLOW; |
| 180 | } |
| 181 | |
| 182 | if (events->eventw == events->eventr) { |
| 183 | int ret; |
| 184 | |
| 185 | if (flags & O_NONBLOCK) |
| 186 | return -EWOULDBLOCK; |
| 187 | |
| 188 | up(&fepriv->sem); |
| 189 | |
| 190 | ret = wait_event_interruptible (events->wait_queue, |
| 191 | events->eventw != events->eventr); |
| 192 | |
| 193 | if (down_interruptible (&fepriv->sem)) |
| 194 | return -ERESTARTSYS; |
| 195 | |
| 196 | if (ret < 0) |
| 197 | return ret; |
| 198 | } |
| 199 | |
Matthias Kaehlcke | 03b7612 | 2007-07-30 14:58:10 -0300 | [diff] [blame] | 200 | if (mutex_lock_interruptible (&events->mtx)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 201 | return -ERESTARTSYS; |
| 202 | |
| 203 | memcpy (event, &events->events[events->eventr], |
| 204 | sizeof(struct dvb_frontend_event)); |
| 205 | |
| 206 | events->eventr = (events->eventr + 1) % MAX_EVENT; |
| 207 | |
Matthias Kaehlcke | 03b7612 | 2007-07-30 14:58:10 -0300 | [diff] [blame] | 208 | mutex_unlock(&events->mtx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 209 | |
| 210 | return 0; |
| 211 | } |
| 212 | |
| 213 | static void dvb_frontend_init(struct dvb_frontend *fe) |
| 214 | { |
| 215 | dprintk ("DVB: initialising frontend %i (%s)...\n", |
| 216 | fe->dvb->num, |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 217 | fe->ops.info.name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 218 | |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 219 | if (fe->ops.init) |
| 220 | fe->ops.init(fe); |
| 221 | if (fe->ops.tuner_ops.init) { |
| 222 | fe->ops.tuner_ops.init(fe); |
| 223 | if (fe->ops.i2c_gate_ctrl) |
| 224 | fe->ops.i2c_gate_ctrl(fe, 0); |
Andrew de Quincey | 7eef5dd | 2006-04-18 17:47:09 -0300 | [diff] [blame] | 225 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 226 | } |
| 227 | |
Andrew de Quincey | 86f40cc | 2006-03-30 15:53:35 -0300 | [diff] [blame] | 228 | void dvb_frontend_reinitialise(struct dvb_frontend *fe) |
| 229 | { |
| 230 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
| 231 | |
| 232 | fepriv->reinitialise = 1; |
| 233 | dvb_frontend_wakeup(fe); |
| 234 | } |
| 235 | EXPORT_SYMBOL(dvb_frontend_reinitialise); |
| 236 | |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 237 | static void dvb_frontend_swzigzag_update_delay(struct dvb_frontend_private *fepriv, int locked) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 238 | { |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 239 | int q2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 240 | |
Harvey Harrison | 46b4f7c | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 241 | dprintk ("%s\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 242 | |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 243 | if (locked) |
| 244 | (fepriv->quality) = (fepriv->quality * 220 + 36*256) / 256; |
| 245 | else |
| 246 | (fepriv->quality) = (fepriv->quality * 220 + 0) / 256; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 247 | |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 248 | q2 = fepriv->quality - 128; |
| 249 | q2 *= q2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 250 | |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 251 | fepriv->delay = fepriv->min_delay + q2 * HZ / (128*128); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 252 | } |
| 253 | |
| 254 | /** |
| 255 | * Performs automatic twiddling of frontend parameters. |
| 256 | * |
| 257 | * @param fe The frontend concerned. |
| 258 | * @param check_wrapped Checks if an iteration has completed. DO NOT SET ON THE FIRST ATTEMPT |
| 259 | * @returns Number of complete iterations that have been performed. |
| 260 | */ |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 261 | static int dvb_frontend_swzigzag_autotune(struct dvb_frontend *fe, int check_wrapped) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 262 | { |
| 263 | int autoinversion; |
| 264 | int ready = 0; |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 265 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 266 | int original_inversion = fepriv->parameters.inversion; |
| 267 | u32 original_frequency = fepriv->parameters.frequency; |
| 268 | |
| 269 | /* are we using autoinversion? */ |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 270 | autoinversion = ((!(fe->ops.info.caps & FE_CAN_INVERSION_AUTO)) && |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 271 | (fepriv->parameters.inversion == INVERSION_AUTO)); |
| 272 | |
| 273 | /* setup parameters correctly */ |
| 274 | while(!ready) { |
| 275 | /* calculate the lnb_drift */ |
| 276 | fepriv->lnb_drift = fepriv->auto_step * fepriv->step_size; |
| 277 | |
| 278 | /* wrap the auto_step if we've exceeded the maximum drift */ |
| 279 | if (fepriv->lnb_drift > fepriv->max_drift) { |
| 280 | fepriv->auto_step = 0; |
| 281 | fepriv->auto_sub_step = 0; |
| 282 | fepriv->lnb_drift = 0; |
| 283 | } |
| 284 | |
| 285 | /* perform inversion and +/- zigzag */ |
| 286 | switch(fepriv->auto_sub_step) { |
| 287 | case 0: |
| 288 | /* try with the current inversion and current drift setting */ |
| 289 | ready = 1; |
| 290 | break; |
| 291 | |
| 292 | case 1: |
| 293 | if (!autoinversion) break; |
| 294 | |
| 295 | fepriv->inversion = (fepriv->inversion == INVERSION_OFF) ? INVERSION_ON : INVERSION_OFF; |
| 296 | ready = 1; |
| 297 | break; |
| 298 | |
| 299 | case 2: |
| 300 | if (fepriv->lnb_drift == 0) break; |
| 301 | |
| 302 | fepriv->lnb_drift = -fepriv->lnb_drift; |
| 303 | ready = 1; |
| 304 | break; |
| 305 | |
| 306 | case 3: |
| 307 | if (fepriv->lnb_drift == 0) break; |
| 308 | if (!autoinversion) break; |
| 309 | |
| 310 | fepriv->inversion = (fepriv->inversion == INVERSION_OFF) ? INVERSION_ON : INVERSION_OFF; |
| 311 | fepriv->lnb_drift = -fepriv->lnb_drift; |
| 312 | ready = 1; |
| 313 | break; |
| 314 | |
| 315 | default: |
| 316 | fepriv->auto_step++; |
| 317 | fepriv->auto_sub_step = -1; /* it'll be incremented to 0 in a moment */ |
| 318 | break; |
| 319 | } |
| 320 | |
| 321 | if (!ready) fepriv->auto_sub_step++; |
| 322 | } |
| 323 | |
| 324 | /* if this attempt would hit where we started, indicate a complete |
| 325 | * iteration has occurred */ |
| 326 | if ((fepriv->auto_step == fepriv->started_auto_step) && |
| 327 | (fepriv->auto_sub_step == 0) && check_wrapped) { |
| 328 | return 1; |
| 329 | } |
| 330 | |
| 331 | dprintk("%s: drift:%i inversion:%i auto_step:%i " |
| 332 | "auto_sub_step:%i started_auto_step:%i\n", |
Harvey Harrison | 46b4f7c | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 333 | __func__, fepriv->lnb_drift, fepriv->inversion, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 334 | fepriv->auto_step, fepriv->auto_sub_step, fepriv->started_auto_step); |
| 335 | |
| 336 | /* set the frontend itself */ |
| 337 | fepriv->parameters.frequency += fepriv->lnb_drift; |
| 338 | if (autoinversion) |
| 339 | fepriv->parameters.inversion = fepriv->inversion; |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 340 | if (fe->ops.set_frontend) |
| 341 | fe->ops.set_frontend(fe, &fepriv->parameters); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 342 | |
| 343 | fepriv->parameters.frequency = original_frequency; |
| 344 | fepriv->parameters.inversion = original_inversion; |
| 345 | |
| 346 | fepriv->auto_sub_step++; |
| 347 | return 0; |
| 348 | } |
| 349 | |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 350 | static void dvb_frontend_swzigzag(struct dvb_frontend *fe) |
| 351 | { |
Andrew de Quincey | 30d9464 | 2006-11-16 22:12:40 -0300 | [diff] [blame] | 352 | fe_status_t s = 0; |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 353 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
| 354 | |
| 355 | /* if we've got no parameters, just keep idling */ |
| 356 | if (fepriv->state & FESTATE_IDLE) { |
| 357 | fepriv->delay = 3*HZ; |
| 358 | fepriv->quality = 0; |
| 359 | return; |
| 360 | } |
| 361 | |
| 362 | /* in SCAN mode, we just set the frontend when asked and leave it alone */ |
| 363 | if (fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT) { |
| 364 | if (fepriv->state & FESTATE_RETUNE) { |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 365 | if (fe->ops.set_frontend) |
| 366 | fe->ops.set_frontend(fe, &fepriv->parameters); |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 367 | fepriv->state = FESTATE_TUNED; |
| 368 | } |
| 369 | fepriv->delay = 3*HZ; |
| 370 | fepriv->quality = 0; |
| 371 | return; |
| 372 | } |
| 373 | |
| 374 | /* get the frontend status */ |
| 375 | if (fepriv->state & FESTATE_RETUNE) { |
| 376 | s = 0; |
| 377 | } else { |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 378 | if (fe->ops.read_status) |
| 379 | fe->ops.read_status(fe, &s); |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 380 | if (s != fepriv->status) { |
| 381 | dvb_frontend_add_event(fe, s); |
| 382 | fepriv->status = s; |
| 383 | } |
| 384 | } |
| 385 | |
| 386 | /* if we're not tuned, and we have a lock, move to the TUNED state */ |
| 387 | if ((fepriv->state & FESTATE_WAITFORLOCK) && (s & FE_HAS_LOCK)) { |
| 388 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); |
| 389 | fepriv->state = FESTATE_TUNED; |
| 390 | |
| 391 | /* if we're tuned, then we have determined the correct inversion */ |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 392 | if ((!(fe->ops.info.caps & FE_CAN_INVERSION_AUTO)) && |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 393 | (fepriv->parameters.inversion == INVERSION_AUTO)) { |
| 394 | fepriv->parameters.inversion = fepriv->inversion; |
| 395 | } |
| 396 | return; |
| 397 | } |
| 398 | |
| 399 | /* if we are tuned already, check we're still locked */ |
| 400 | if (fepriv->state & FESTATE_TUNED) { |
| 401 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); |
| 402 | |
| 403 | /* we're tuned, and the lock is still good... */ |
| 404 | if (s & FE_HAS_LOCK) { |
| 405 | return; |
| 406 | } else { /* if we _WERE_ tuned, but now don't have a lock */ |
| 407 | fepriv->state = FESTATE_ZIGZAG_FAST; |
| 408 | fepriv->started_auto_step = fepriv->auto_step; |
| 409 | fepriv->check_wrapped = 0; |
| 410 | } |
| 411 | } |
| 412 | |
| 413 | /* don't actually do anything if we're in the LOSTLOCK state, |
| 414 | * the frontend is set to FE_CAN_RECOVER, and the max_drift is 0 */ |
| 415 | if ((fepriv->state & FESTATE_LOSTLOCK) && |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 416 | (fe->ops.info.caps & FE_CAN_RECOVER) && (fepriv->max_drift == 0)) { |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 417 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); |
| 418 | return; |
| 419 | } |
| 420 | |
| 421 | /* don't do anything if we're in the DISEQC state, since this |
| 422 | * might be someone with a motorized dish controlled by DISEQC. |
| 423 | * If its actually a re-tune, there will be a SET_FRONTEND soon enough. */ |
| 424 | if (fepriv->state & FESTATE_DISEQC) { |
| 425 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); |
| 426 | return; |
| 427 | } |
| 428 | |
| 429 | /* if we're in the RETUNE state, set everything up for a brand |
| 430 | * new scan, keeping the current inversion setting, as the next |
| 431 | * tune is _very_ likely to require the same */ |
| 432 | if (fepriv->state & FESTATE_RETUNE) { |
| 433 | fepriv->lnb_drift = 0; |
| 434 | fepriv->auto_step = 0; |
| 435 | fepriv->auto_sub_step = 0; |
| 436 | fepriv->started_auto_step = 0; |
| 437 | fepriv->check_wrapped = 0; |
| 438 | } |
| 439 | |
| 440 | /* fast zigzag. */ |
| 441 | if ((fepriv->state & FESTATE_SEARCHING_FAST) || (fepriv->state & FESTATE_RETUNE)) { |
| 442 | fepriv->delay = fepriv->min_delay; |
| 443 | |
| 444 | /* peform a tune */ |
| 445 | if (dvb_frontend_swzigzag_autotune(fe, fepriv->check_wrapped)) { |
| 446 | /* OK, if we've run out of trials at the fast speed. |
| 447 | * Drop back to slow for the _next_ attempt */ |
| 448 | fepriv->state = FESTATE_SEARCHING_SLOW; |
| 449 | fepriv->started_auto_step = fepriv->auto_step; |
| 450 | return; |
| 451 | } |
| 452 | fepriv->check_wrapped = 1; |
| 453 | |
| 454 | /* if we've just retuned, enter the ZIGZAG_FAST state. |
| 455 | * This ensures we cannot return from an |
| 456 | * FE_SET_FRONTEND ioctl before the first frontend tune |
| 457 | * occurs */ |
| 458 | if (fepriv->state & FESTATE_RETUNE) { |
| 459 | fepriv->state = FESTATE_TUNING_FAST; |
| 460 | } |
| 461 | } |
| 462 | |
| 463 | /* slow zigzag */ |
| 464 | if (fepriv->state & FESTATE_SEARCHING_SLOW) { |
| 465 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); |
| 466 | |
| 467 | /* Note: don't bother checking for wrapping; we stay in this |
| 468 | * state until we get a lock */ |
| 469 | dvb_frontend_swzigzag_autotune(fe, 0); |
| 470 | } |
| 471 | } |
| 472 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 473 | static int dvb_frontend_is_exiting(struct dvb_frontend *fe) |
| 474 | { |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 475 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 476 | |
| 477 | if (fepriv->exit) |
| 478 | return 1; |
| 479 | |
| 480 | if (fepriv->dvbdev->writers == 1) |
Johannes Stezenbach | cc89c22 | 2005-06-23 22:02:39 -0700 | [diff] [blame] | 481 | if (time_after(jiffies, fepriv->release_jiffies + |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 482 | dvb_shutdown_timeout * HZ)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 483 | return 1; |
| 484 | |
| 485 | return 0; |
| 486 | } |
| 487 | |
| 488 | static int dvb_frontend_should_wakeup(struct dvb_frontend *fe) |
| 489 | { |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 490 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 491 | |
| 492 | if (fepriv->wakeup) { |
| 493 | fepriv->wakeup = 0; |
| 494 | return 1; |
| 495 | } |
| 496 | return dvb_frontend_is_exiting(fe); |
| 497 | } |
| 498 | |
| 499 | static void dvb_frontend_wakeup(struct dvb_frontend *fe) |
| 500 | { |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 501 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 502 | |
| 503 | fepriv->wakeup = 1; |
| 504 | wake_up_interruptible(&fepriv->wait_queue); |
| 505 | } |
| 506 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 507 | static int dvb_frontend_thread(void *data) |
| 508 | { |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 509 | struct dvb_frontend *fe = data; |
| 510 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 511 | unsigned long timeout; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 512 | fe_status_t s; |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 513 | struct dvb_frontend_parameters *params; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 514 | |
Harvey Harrison | 46b4f7c | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 515 | dprintk("%s\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 516 | |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 517 | fepriv->check_wrapped = 0; |
| 518 | fepriv->quality = 0; |
| 519 | fepriv->delay = 3*HZ; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 520 | fepriv->status = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 521 | fepriv->wakeup = 0; |
Andrew de Quincey | 04c56d0 | 2006-07-10 03:34:14 -0300 | [diff] [blame] | 522 | fepriv->reinitialise = 0; |
| 523 | |
| 524 | dvb_frontend_init(fe); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 525 | |
Rafael J. Wysocki | 8314418 | 2007-07-17 04:03:35 -0700 | [diff] [blame] | 526 | set_freezable(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 527 | while (1) { |
| 528 | up(&fepriv->sem); /* is locked when we enter the thread... */ |
akpm@linux-foundation.org | 6591691 | 2007-02-08 14:36:57 -0300 | [diff] [blame] | 529 | restart: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 530 | timeout = wait_event_interruptible_timeout(fepriv->wait_queue, |
Rafael J. Wysocki | e42837b | 2007-10-18 03:04:45 -0700 | [diff] [blame] | 531 | dvb_frontend_should_wakeup(fe) || kthread_should_stop() |
| 532 | || freezing(current), |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 533 | fepriv->delay); |
| 534 | |
| 535 | if (kthread_should_stop() || dvb_frontend_is_exiting(fe)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 536 | /* got signal or quitting */ |
| 537 | break; |
| 538 | } |
| 539 | |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 540 | if (try_to_freeze()) |
akpm@linux-foundation.org | 6591691 | 2007-02-08 14:36:57 -0300 | [diff] [blame] | 541 | goto restart; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 542 | |
| 543 | if (down_interruptible(&fepriv->sem)) |
| 544 | break; |
| 545 | |
Andrew de Quincey | 86f40cc | 2006-03-30 15:53:35 -0300 | [diff] [blame] | 546 | if (fepriv->reinitialise) { |
| 547 | dvb_frontend_init(fe); |
Andrew de Quincey | 6445401 | 2006-04-06 14:32:23 -0300 | [diff] [blame] | 548 | if (fepriv->tone != -1) { |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 549 | fe->ops.set_tone(fe, fepriv->tone); |
Andrew de Quincey | 6445401 | 2006-04-06 14:32:23 -0300 | [diff] [blame] | 550 | } |
| 551 | if (fepriv->voltage != -1) { |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 552 | fe->ops.set_voltage(fe, fepriv->voltage); |
Andrew de Quincey | 6445401 | 2006-04-06 14:32:23 -0300 | [diff] [blame] | 553 | } |
Andrew de Quincey | 86f40cc | 2006-03-30 15:53:35 -0300 | [diff] [blame] | 554 | fepriv->reinitialise = 0; |
| 555 | } |
| 556 | |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 557 | /* do an iteration of the tuning loop */ |
Manu Abraham | d772bd0 | 2006-06-24 11:18:58 -0300 | [diff] [blame] | 558 | if (fe->ops.get_frontend_algo) { |
| 559 | if (fe->ops.get_frontend_algo(fe) == FE_ALGO_HW) { |
| 560 | /* have we been asked to retune? */ |
| 561 | params = NULL; |
| 562 | if (fepriv->state & FESTATE_RETUNE) { |
| 563 | params = &fepriv->parameters; |
| 564 | fepriv->state = FESTATE_TUNED; |
| 565 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 566 | |
Manu Abraham | d772bd0 | 2006-06-24 11:18:58 -0300 | [diff] [blame] | 567 | fe->ops.tune(fe, params, fepriv->tune_mode_flags, &fepriv->delay, &s); |
| 568 | if (s != fepriv->status) { |
| 569 | dvb_frontend_add_event(fe, s); |
| 570 | fepriv->status = s; |
| 571 | } |
Manu Abraham | 70d9063 | 2006-06-29 22:05:23 -0300 | [diff] [blame] | 572 | } else |
| 573 | dvb_frontend_swzigzag(fe); |
Manu Abraham | 4a4edcc | 2006-06-25 05:46:26 -0300 | [diff] [blame] | 574 | } else |
| 575 | dvb_frontend_swzigzag(fe); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 576 | } |
| 577 | |
Oliver Endriss | 608f62d | 2007-08-25 13:17:53 -0300 | [diff] [blame] | 578 | if (dvb_powerdown_on_sleep) { |
| 579 | if (fe->ops.set_voltage) |
| 580 | fe->ops.set_voltage(fe, SEC_VOLTAGE_OFF); |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 581 | if (fe->ops.tuner_ops.sleep) { |
| 582 | fe->ops.tuner_ops.sleep(fe); |
| 583 | if (fe->ops.i2c_gate_ctrl) |
| 584 | fe->ops.i2c_gate_ctrl(fe, 0); |
Andrew de Quincey | 7eef5dd | 2006-04-18 17:47:09 -0300 | [diff] [blame] | 585 | } |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 586 | if (fe->ops.sleep) |
| 587 | fe->ops.sleep(fe); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 588 | } |
| 589 | |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 590 | fepriv->thread = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 591 | mb(); |
| 592 | |
| 593 | dvb_frontend_wakeup(fe); |
| 594 | return 0; |
| 595 | } |
| 596 | |
| 597 | static void dvb_frontend_stop(struct dvb_frontend *fe) |
| 598 | { |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 599 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 600 | |
Harvey Harrison | 46b4f7c | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 601 | dprintk ("%s\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 602 | |
| 603 | fepriv->exit = 1; |
| 604 | mb(); |
| 605 | |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 606 | if (!fepriv->thread) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 607 | return; |
| 608 | |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 609 | kthread_stop(fepriv->thread); |
Markus Rechberger | ca5be9c | 2007-04-14 10:18:58 -0300 | [diff] [blame] | 610 | |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 611 | init_MUTEX (&fepriv->sem); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 612 | fepriv->state = FESTATE_IDLE; |
| 613 | |
| 614 | /* paranoia check in case a signal arrived */ |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 615 | if (fepriv->thread) |
| 616 | printk("dvb_frontend_stop: warning: thread %p won't exit\n", |
| 617 | fepriv->thread); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 618 | } |
| 619 | |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 620 | s32 timeval_usec_diff(struct timeval lasttime, struct timeval curtime) |
| 621 | { |
| 622 | return ((curtime.tv_usec < lasttime.tv_usec) ? |
| 623 | 1000000 - lasttime.tv_usec + curtime.tv_usec : |
| 624 | curtime.tv_usec - lasttime.tv_usec); |
| 625 | } |
| 626 | EXPORT_SYMBOL(timeval_usec_diff); |
| 627 | |
| 628 | static inline void timeval_usec_add(struct timeval *curtime, u32 add_usec) |
| 629 | { |
| 630 | curtime->tv_usec += add_usec; |
| 631 | if (curtime->tv_usec >= 1000000) { |
| 632 | curtime->tv_usec -= 1000000; |
| 633 | curtime->tv_sec++; |
| 634 | } |
| 635 | } |
| 636 | |
| 637 | /* |
| 638 | * Sleep until gettimeofday() > waketime + add_usec |
| 639 | * This needs to be as precise as possible, but as the delay is |
| 640 | * usually between 2ms and 32ms, it is done using a scheduled msleep |
| 641 | * followed by usleep (normally a busy-wait loop) for the remainder |
| 642 | */ |
| 643 | void dvb_frontend_sleep_until(struct timeval *waketime, u32 add_usec) |
| 644 | { |
| 645 | struct timeval lasttime; |
| 646 | s32 delta, newdelta; |
| 647 | |
| 648 | timeval_usec_add(waketime, add_usec); |
| 649 | |
| 650 | do_gettimeofday(&lasttime); |
| 651 | delta = timeval_usec_diff(lasttime, *waketime); |
| 652 | if (delta > 2500) { |
| 653 | msleep((delta - 1500) / 1000); |
| 654 | do_gettimeofday(&lasttime); |
| 655 | newdelta = timeval_usec_diff(lasttime, *waketime); |
| 656 | delta = (newdelta > delta) ? 0 : newdelta; |
| 657 | } |
| 658 | if (delta > 0) |
| 659 | udelay(delta); |
| 660 | } |
| 661 | EXPORT_SYMBOL(dvb_frontend_sleep_until); |
| 662 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 663 | static int dvb_frontend_start(struct dvb_frontend *fe) |
| 664 | { |
| 665 | int ret; |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 666 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 667 | struct task_struct *fe_thread; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 668 | |
Harvey Harrison | 46b4f7c | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 669 | dprintk ("%s\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 670 | |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 671 | if (fepriv->thread) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 672 | if (!fepriv->exit) |
| 673 | return 0; |
| 674 | else |
| 675 | dvb_frontend_stop (fe); |
| 676 | } |
| 677 | |
| 678 | if (signal_pending(current)) |
| 679 | return -EINTR; |
| 680 | if (down_interruptible (&fepriv->sem)) |
| 681 | return -EINTR; |
| 682 | |
| 683 | fepriv->state = FESTATE_IDLE; |
| 684 | fepriv->exit = 0; |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 685 | fepriv->thread = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 686 | mb(); |
| 687 | |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 688 | fe_thread = kthread_run(dvb_frontend_thread, fe, |
| 689 | "kdvb-fe-%i", fe->dvb->num); |
| 690 | if (IS_ERR(fe_thread)) { |
| 691 | ret = PTR_ERR(fe_thread); |
| 692 | printk("dvb_frontend_start: failed to start kthread (%d)\n", ret); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 693 | up(&fepriv->sem); |
| 694 | return ret; |
| 695 | } |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 696 | fepriv->thread = fe_thread; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 697 | return 0; |
| 698 | } |
| 699 | |
Oliver Endriss | c471b33 | 2007-08-09 01:03:42 -0300 | [diff] [blame] | 700 | static void dvb_frontend_get_frequeny_limits(struct dvb_frontend *fe, |
| 701 | u32 *freq_min, u32 *freq_max) |
| 702 | { |
| 703 | *freq_min = max(fe->ops.info.frequency_min, fe->ops.tuner_ops.info.frequency_min); |
| 704 | |
| 705 | if (fe->ops.info.frequency_max == 0) |
| 706 | *freq_max = fe->ops.tuner_ops.info.frequency_max; |
| 707 | else if (fe->ops.tuner_ops.info.frequency_max == 0) |
| 708 | *freq_max = fe->ops.info.frequency_max; |
| 709 | else |
| 710 | *freq_max = min(fe->ops.info.frequency_max, fe->ops.tuner_ops.info.frequency_max); |
| 711 | |
| 712 | if (*freq_min == 0 || *freq_max == 0) |
| 713 | printk(KERN_WARNING "DVB: frontend %u frequency limits undefined - fix the driver\n", |
| 714 | fe->dvb->num); |
| 715 | } |
| 716 | |
Oliver Endriss | 1fab46f | 2007-07-23 21:00:36 -0300 | [diff] [blame] | 717 | static int dvb_frontend_check_parameters(struct dvb_frontend *fe, |
| 718 | struct dvb_frontend_parameters *parms) |
| 719 | { |
Oliver Endriss | c471b33 | 2007-08-09 01:03:42 -0300 | [diff] [blame] | 720 | u32 freq_min; |
| 721 | u32 freq_max; |
| 722 | |
Oliver Endriss | 1fab46f | 2007-07-23 21:00:36 -0300 | [diff] [blame] | 723 | /* range check: frequency */ |
Oliver Endriss | c471b33 | 2007-08-09 01:03:42 -0300 | [diff] [blame] | 724 | dvb_frontend_get_frequeny_limits(fe, &freq_min, &freq_max); |
| 725 | if ((freq_min && parms->frequency < freq_min) || |
| 726 | (freq_max && parms->frequency > freq_max)) { |
Oliver Endriss | 1fab46f | 2007-07-23 21:00:36 -0300 | [diff] [blame] | 727 | printk(KERN_WARNING "DVB: frontend %u frequency %u out of range (%u..%u)\n", |
Oliver Endriss | c471b33 | 2007-08-09 01:03:42 -0300 | [diff] [blame] | 728 | fe->dvb->num, parms->frequency, freq_min, freq_max); |
Oliver Endriss | 1fab46f | 2007-07-23 21:00:36 -0300 | [diff] [blame] | 729 | return -EINVAL; |
| 730 | } |
| 731 | |
| 732 | /* range check: symbol rate */ |
| 733 | if (fe->ops.info.type == FE_QPSK) { |
| 734 | if ((fe->ops.info.symbol_rate_min && |
| 735 | parms->u.qpsk.symbol_rate < fe->ops.info.symbol_rate_min) || |
| 736 | (fe->ops.info.symbol_rate_max && |
| 737 | parms->u.qpsk.symbol_rate > fe->ops.info.symbol_rate_max)) { |
| 738 | printk(KERN_WARNING "DVB: frontend %u symbol rate %u out of range (%u..%u)\n", |
| 739 | fe->dvb->num, parms->u.qpsk.symbol_rate, |
| 740 | fe->ops.info.symbol_rate_min, fe->ops.info.symbol_rate_max); |
| 741 | return -EINVAL; |
| 742 | } |
| 743 | |
| 744 | } else if (fe->ops.info.type == FE_QAM) { |
| 745 | if ((fe->ops.info.symbol_rate_min && |
| 746 | parms->u.qam.symbol_rate < fe->ops.info.symbol_rate_min) || |
| 747 | (fe->ops.info.symbol_rate_max && |
| 748 | parms->u.qam.symbol_rate > fe->ops.info.symbol_rate_max)) { |
| 749 | printk(KERN_WARNING "DVB: frontend %u symbol rate %u out of range (%u..%u)\n", |
| 750 | fe->dvb->num, parms->u.qam.symbol_rate, |
| 751 | fe->ops.info.symbol_rate_min, fe->ops.info.symbol_rate_max); |
| 752 | return -EINVAL; |
| 753 | } |
| 754 | } |
| 755 | |
| 756 | return 0; |
| 757 | } |
| 758 | |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame] | 759 | struct dtv_cmds_h dtv_cmds[] = { |
Steven Toth | e7fee0f3 | 2008-09-11 10:23:01 -0300 | [diff] [blame] | 760 | [DTV_TUNE] = { |
| 761 | .name = "DTV_TUNE", |
| 762 | .cmd = DTV_TUNE, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 763 | .set = 1, |
| 764 | }, |
Steven Toth | e7fee0f3 | 2008-09-11 10:23:01 -0300 | [diff] [blame] | 765 | [DTV_CLEAR] = { |
| 766 | .name = "DTV_CLEAR", |
| 767 | .cmd = DTV_CLEAR, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 768 | .set = 1, |
| 769 | }, |
| 770 | |
| 771 | /* Set */ |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 772 | [DTV_FREQUENCY] = { |
| 773 | .name = "DTV_FREQUENCY", |
| 774 | .cmd = DTV_FREQUENCY, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 775 | .set = 1, |
| 776 | }, |
Steven Toth | 75b7f94 | 2008-09-13 16:56:34 -0300 | [diff] [blame] | 777 | [DTV_BANDWIDTH_HZ] = { |
| 778 | .name = "DTV_BANDWIDTH_HZ", |
| 779 | .cmd = DTV_BANDWIDTH_HZ, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 780 | .set = 1, |
| 781 | }, |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 782 | [DTV_MODULATION] = { |
| 783 | .name = "DTV_MODULATION", |
| 784 | .cmd = DTV_MODULATION, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 785 | .set = 1, |
| 786 | }, |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 787 | [DTV_INVERSION] = { |
| 788 | .name = "DTV_INVERSION", |
| 789 | .cmd = DTV_INVERSION, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 790 | .set = 1, |
| 791 | }, |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 792 | [DTV_DISEQC_MASTER] = { |
| 793 | .name = "DTV_DISEQC_MASTER", |
| 794 | .cmd = DTV_DISEQC_MASTER, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 795 | .set = 1, |
| 796 | .buffer = 1, |
| 797 | }, |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 798 | [DTV_SYMBOL_RATE] = { |
| 799 | .name = "DTV_SYMBOL_RATE", |
| 800 | .cmd = DTV_SYMBOL_RATE, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 801 | .set = 1, |
| 802 | }, |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 803 | [DTV_INNER_FEC] = { |
| 804 | .name = "DTV_INNER_FEC", |
| 805 | .cmd = DTV_INNER_FEC, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 806 | .set = 1, |
| 807 | }, |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 808 | [DTV_VOLTAGE] = { |
| 809 | .name = "DTV_VOLTAGE", |
| 810 | .cmd = DTV_VOLTAGE, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 811 | .set = 1, |
| 812 | }, |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 813 | [DTV_TONE] = { |
| 814 | .name = "DTV_TONE", |
| 815 | .cmd = DTV_TONE, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 816 | .set = 1, |
| 817 | }, |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 818 | [DTV_PILOT] = { |
| 819 | .name = "DTV_PILOT", |
| 820 | .cmd = DTV_PILOT, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 821 | .set = 1, |
| 822 | }, |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 823 | [DTV_ROLLOFF] = { |
| 824 | .name = "DTV_ROLLOFF", |
| 825 | .cmd = DTV_ROLLOFF, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 826 | .set = 1, |
| 827 | }, |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 828 | [DTV_DELIVERY_SYSTEM] = { |
| 829 | .name = "DTV_DELIVERY_SYSTEM", |
| 830 | .cmd = DTV_DELIVERY_SYSTEM, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 831 | .set = 1, |
| 832 | }, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 833 | /* Get */ |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 834 | [DTV_DISEQC_SLAVE_REPLY] = { |
| 835 | .name = "DTV_DISEQC_SLAVE_REPLY", |
| 836 | .cmd = DTV_DISEQC_SLAVE_REPLY, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 837 | .set = 0, |
| 838 | .buffer = 1, |
| 839 | }, |
Steven Toth | eacf8d8 | 2008-09-26 00:29:49 -0300 | [diff] [blame^] | 840 | [DTV_API_VERSION] = { |
| 841 | .name = "DTV_API_VERSION", |
| 842 | .cmd = DTV_API_VERSION, |
| 843 | .set = 0, |
| 844 | }, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 845 | }; |
| 846 | |
Steven Toth | e7fee0f3 | 2008-09-11 10:23:01 -0300 | [diff] [blame] | 847 | void dtv_property_dump(struct dtv_property *tvp) |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 848 | { |
| 849 | int i; |
| 850 | |
| 851 | printk("%s() tvp.cmd = 0x%08x (%s)\n" |
| 852 | ,__FUNCTION__ |
| 853 | ,tvp->cmd |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame] | 854 | ,dtv_cmds[ tvp->cmd ].name); |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 855 | |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame] | 856 | if(dtv_cmds[ tvp->cmd ].buffer) { |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 857 | |
| 858 | printk("%s() tvp.u.buffer.len = 0x%02x\n" |
| 859 | ,__FUNCTION__ |
| 860 | ,tvp->u.buffer.len); |
| 861 | |
| 862 | for(i = 0; i < tvp->u.buffer.len; i++) |
| 863 | printk("%s() tvp.u.buffer.data[0x%02x] = 0x%02x\n" |
| 864 | ,__FUNCTION__ |
| 865 | ,i |
| 866 | ,tvp->u.buffer.data[i]); |
| 867 | |
| 868 | } else |
| 869 | printk("%s() tvp.u.data = 0x%08x\n", __FUNCTION__, tvp->u.data); |
| 870 | } |
| 871 | |
| 872 | int is_legacy_delivery_system(fe_delivery_system_t s) |
| 873 | { |
| 874 | if((s == SYS_UNDEFINED) || (s == SYS_DVBC_ANNEX_AC) || |
| 875 | (s == SYS_DVBC_ANNEX_B) || (s == SYS_DVBT) || (s == SYS_DVBS)) |
| 876 | return 1; |
| 877 | |
| 878 | return 0; |
| 879 | } |
| 880 | |
Steven Toth | ee33c52 | 2008-09-11 23:52:32 -0300 | [diff] [blame] | 881 | /* Synchronise the legacy tuning parameters into the cache, so that demodulator |
| 882 | * drivers can use a single set_frontend tuning function, regardless of whether |
| 883 | * it's being used for the legacy or new API, reducing code and complexity. |
| 884 | */ |
| 885 | void dtv_property_cache_sync(struct dvb_frontend *fe, struct dvb_frontend_parameters *p) |
| 886 | { |
| 887 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
| 888 | |
Steven Toth | d5748f1 | 2008-09-12 00:27:13 -0300 | [diff] [blame] | 889 | printk("%s()\n", __FUNCTION__); |
| 890 | |
Steven Toth | ee33c52 | 2008-09-11 23:52:32 -0300 | [diff] [blame] | 891 | c->frequency = p->frequency; |
| 892 | c->inversion = p->inversion; |
| 893 | |
| 894 | switch (fe->ops.info.type) { |
| 895 | case FE_QPSK: |
| 896 | c->symbol_rate = p->u.qpsk.symbol_rate; |
| 897 | c->fec_inner = p->u.qpsk.fec_inner; |
Steven Toth | 80a773c | 2008-09-12 00:53:50 -0300 | [diff] [blame] | 898 | c->delivery_system = SYS_DVBS; |
Steven Toth | ee33c52 | 2008-09-11 23:52:32 -0300 | [diff] [blame] | 899 | break; |
| 900 | case FE_QAM: |
| 901 | c->symbol_rate = p->u.qam.symbol_rate; |
| 902 | c->fec_inner = p->u.qam.fec_inner; |
| 903 | c->modulation = p->u.qam.modulation; |
Steven Toth | 80a773c | 2008-09-12 00:53:50 -0300 | [diff] [blame] | 904 | c->delivery_system = SYS_DVBC_ANNEX_AC; |
Steven Toth | ee33c52 | 2008-09-11 23:52:32 -0300 | [diff] [blame] | 905 | break; |
| 906 | case FE_OFDM: |
Steven Toth | 75b7f94 | 2008-09-13 16:56:34 -0300 | [diff] [blame] | 907 | if (p->u.ofdm.bandwidth == BANDWIDTH_6_MHZ) |
| 908 | c->bandwidth_hz = 6000000; |
| 909 | else if (p->u.ofdm.bandwidth == BANDWIDTH_7_MHZ) |
| 910 | c->bandwidth_hz = 7000000; |
| 911 | else if (p->u.ofdm.bandwidth == BANDWIDTH_8_MHZ) |
| 912 | c->bandwidth_hz = 8000000; |
| 913 | else |
| 914 | /* Including BANDWIDTH_AUTO */ |
| 915 | c->bandwidth_hz = 0; |
Steven Toth | ee33c52 | 2008-09-11 23:52:32 -0300 | [diff] [blame] | 916 | c->code_rate_HP = p->u.ofdm.code_rate_HP; |
| 917 | c->code_rate_LP = p->u.ofdm.code_rate_LP; |
| 918 | c->modulation = p->u.ofdm.constellation; |
| 919 | c->transmission_mode = p->u.ofdm.transmission_mode; |
| 920 | c->guard_interval = p->u.ofdm.guard_interval; |
| 921 | c->hierarchy = p->u.ofdm.hierarchy_information; |
Steven Toth | 80a773c | 2008-09-12 00:53:50 -0300 | [diff] [blame] | 922 | c->delivery_system = SYS_DVBT; |
Steven Toth | ee33c52 | 2008-09-11 23:52:32 -0300 | [diff] [blame] | 923 | break; |
| 924 | case FE_ATSC: |
| 925 | c->modulation = p->u.vsb.modulation; |
Steven Toth | 80a773c | 2008-09-12 00:53:50 -0300 | [diff] [blame] | 926 | if ((c->modulation == VSB_8) || (c->modulation == VSB_16)) |
| 927 | c->delivery_system = SYS_ATSC; |
| 928 | else |
| 929 | c->delivery_system = SYS_DVBC_ANNEX_B; |
Steven Toth | ee33c52 | 2008-09-11 23:52:32 -0300 | [diff] [blame] | 930 | break; |
| 931 | } |
| 932 | } |
| 933 | |
Steven Toth | d5748f1 | 2008-09-12 00:27:13 -0300 | [diff] [blame] | 934 | /* Ensure the cached values are set correctly in the frontend |
| 935 | * legacy tuning structures, for the advanced tuning API. |
| 936 | */ |
| 937 | void dtv_property_legacy_params_sync(struct dvb_frontend *fe) |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 938 | { |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame] | 939 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 940 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Steven Toth | d5748f1 | 2008-09-12 00:27:13 -0300 | [diff] [blame] | 941 | struct dvb_frontend_parameters *p = &fepriv->parameters; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 942 | |
| 943 | printk("%s()\n", __FUNCTION__); |
| 944 | |
Steven Toth | d5748f1 | 2008-09-12 00:27:13 -0300 | [diff] [blame] | 945 | p->frequency = c->frequency; |
| 946 | p->inversion = c->inversion; |
| 947 | |
| 948 | switch (fe->ops.info.type) { |
| 949 | case FE_QPSK: |
| 950 | printk("%s() Preparing QPSK req\n", __FUNCTION__); |
| 951 | p->u.qpsk.symbol_rate = c->symbol_rate; |
| 952 | p->u.qpsk.fec_inner = c->fec_inner; |
Steven Toth | 80a773c | 2008-09-12 00:53:50 -0300 | [diff] [blame] | 953 | c->delivery_system = SYS_DVBS; |
Steven Toth | d5748f1 | 2008-09-12 00:27:13 -0300 | [diff] [blame] | 954 | break; |
| 955 | case FE_QAM: |
| 956 | printk("%s() Preparing QAM req\n", __FUNCTION__); |
| 957 | p->u.qam.symbol_rate = c->symbol_rate; |
| 958 | p->u.qam.fec_inner = c->fec_inner; |
| 959 | p->u.qam.modulation = c->modulation; |
Steven Toth | 80a773c | 2008-09-12 00:53:50 -0300 | [diff] [blame] | 960 | c->delivery_system = SYS_DVBC_ANNEX_AC; |
Steven Toth | d5748f1 | 2008-09-12 00:27:13 -0300 | [diff] [blame] | 961 | break; |
| 962 | case FE_OFDM: |
| 963 | printk("%s() Preparing OFDM req\n", __FUNCTION__); |
Steven Toth | 75b7f94 | 2008-09-13 16:56:34 -0300 | [diff] [blame] | 964 | if (c->bandwidth_hz == 6000000) |
| 965 | p->u.ofdm.bandwidth = BANDWIDTH_6_MHZ; |
| 966 | else if (c->bandwidth_hz == 7000000) |
| 967 | p->u.ofdm.bandwidth = BANDWIDTH_7_MHZ; |
| 968 | else if (c->bandwidth_hz == 8000000) |
| 969 | p->u.ofdm.bandwidth = BANDWIDTH_8_MHZ; |
| 970 | else |
| 971 | p->u.ofdm.bandwidth = BANDWIDTH_AUTO; |
Steven Toth | d5748f1 | 2008-09-12 00:27:13 -0300 | [diff] [blame] | 972 | p->u.ofdm.code_rate_HP = c->code_rate_HP; |
| 973 | p->u.ofdm.code_rate_LP = c->code_rate_LP; |
| 974 | p->u.ofdm.constellation = c->modulation; |
| 975 | p->u.ofdm.transmission_mode = c->transmission_mode; |
| 976 | p->u.ofdm.guard_interval = c->guard_interval; |
| 977 | p->u.ofdm.hierarchy_information = c->hierarchy; |
Steven Toth | 80a773c | 2008-09-12 00:53:50 -0300 | [diff] [blame] | 978 | c->delivery_system = SYS_DVBT; |
Steven Toth | d5748f1 | 2008-09-12 00:27:13 -0300 | [diff] [blame] | 979 | break; |
| 980 | case FE_ATSC: |
| 981 | printk("%s() Preparing VSB req\n", __FUNCTION__); |
| 982 | p->u.vsb.modulation = c->modulation; |
Steven Toth | 80a773c | 2008-09-12 00:53:50 -0300 | [diff] [blame] | 983 | if ((c->modulation == VSB_8) || (c->modulation == VSB_16)) |
| 984 | c->delivery_system = SYS_ATSC; |
| 985 | else |
| 986 | c->delivery_system = SYS_DVBC_ANNEX_B; |
Steven Toth | d5748f1 | 2008-09-12 00:27:13 -0300 | [diff] [blame] | 987 | break; |
| 988 | } |
| 989 | } |
| 990 | |
| 991 | /* Ensure the cached values are set correctly in the frontend |
| 992 | * legacy tuning structures, for the legacy tuning API. |
| 993 | */ |
| 994 | void dtv_property_adv_params_sync(struct dvb_frontend *fe) |
| 995 | { |
| 996 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
| 997 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
| 998 | struct dvb_frontend_parameters *p = &fepriv->parameters; |
| 999 | |
| 1000 | printk("%s()\n", __FUNCTION__); |
| 1001 | |
| 1002 | p->frequency = c->frequency; |
| 1003 | p->inversion = c->inversion; |
| 1004 | |
| 1005 | switch(c->modulation) { |
| 1006 | case _8PSK: |
| 1007 | case _16APSK: |
| 1008 | case NBC_QPSK: |
| 1009 | p->u.qpsk.symbol_rate = c->symbol_rate; |
| 1010 | p->u.qpsk.fec_inner = c->fec_inner; |
| 1011 | break; |
| 1012 | default: |
| 1013 | break; |
| 1014 | } |
| 1015 | |
| 1016 | if(c->delivery_system == SYS_ISDBT) { |
| 1017 | /* Fake out a generic DVB-T request so we pass validation in the ioctl */ |
| 1018 | p->frequency = c->frequency; |
| 1019 | p->inversion = INVERSION_AUTO; |
| 1020 | p->u.ofdm.constellation = QAM_AUTO; |
| 1021 | p->u.ofdm.code_rate_HP = FEC_AUTO; |
| 1022 | p->u.ofdm.code_rate_LP = FEC_AUTO; |
| 1023 | p->u.ofdm.bandwidth = BANDWIDTH_AUTO; |
| 1024 | p->u.ofdm.transmission_mode = TRANSMISSION_MODE_AUTO; |
| 1025 | p->u.ofdm.guard_interval = GUARD_INTERVAL_AUTO; |
| 1026 | p->u.ofdm.hierarchy_information = HIERARCHY_AUTO; |
| 1027 | } |
| 1028 | } |
| 1029 | |
| 1030 | void dtv_property_cache_submit(struct dvb_frontend *fe) |
| 1031 | { |
| 1032 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
| 1033 | |
| 1034 | printk("%s()\n", __FUNCTION__); |
| 1035 | |
| 1036 | /* For legacy delivery systems we don't need the delivery_system to |
| 1037 | * be specified, but we populate the older structures from the cache |
| 1038 | * so we can call set_frontend on older drivers. |
| 1039 | */ |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1040 | if(is_legacy_delivery_system(c->delivery_system)) { |
Steven Toth | d5748f1 | 2008-09-12 00:27:13 -0300 | [diff] [blame] | 1041 | |
Steven Toth | e7fee0f3 | 2008-09-11 10:23:01 -0300 | [diff] [blame] | 1042 | printk("%s() legacy, modulation = %d\n", __FUNCTION__, c->modulation); |
Steven Toth | d5748f1 | 2008-09-12 00:27:13 -0300 | [diff] [blame] | 1043 | dtv_property_legacy_params_sync(fe); |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1044 | |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1045 | } else { |
Steven Toth | d5748f1 | 2008-09-12 00:27:13 -0300 | [diff] [blame] | 1046 | printk("%s() adv, modulation = %d\n", __FUNCTION__, c->modulation); |
| 1047 | |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1048 | /* For advanced delivery systems / modulation types ... |
| 1049 | * we seed the lecacy dvb_frontend_parameters structure |
| 1050 | * so that the sanity checking code later in the IOCTL processing |
| 1051 | * can validate our basic frequency ranges, symbolrates, modulation |
| 1052 | * etc. |
| 1053 | */ |
Steven Toth | d5748f1 | 2008-09-12 00:27:13 -0300 | [diff] [blame] | 1054 | dtv_property_adv_params_sync(fe); |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1055 | } |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1056 | } |
| 1057 | |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1058 | static int dvb_frontend_ioctl_legacy(struct inode *inode, struct file *file, |
| 1059 | unsigned int cmd, void *parg); |
| 1060 | static int dvb_frontend_ioctl_properties(struct inode *inode, struct file *file, |
| 1061 | unsigned int cmd, void *parg); |
| 1062 | |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1063 | int dtv_property_process_get(struct dvb_frontend *fe, struct dtv_property *tvp, |
| 1064 | struct inode *inode, struct file *file) |
| 1065 | { |
| 1066 | int r = 0; |
| 1067 | |
| 1068 | printk("%s()\n", __FUNCTION__); |
| 1069 | |
| 1070 | dtv_property_dump(tvp); |
| 1071 | |
Steven Toth | bfbf2da | 2008-09-12 01:37:37 -0300 | [diff] [blame] | 1072 | /* Allow the frontend to validate incoming properties */ |
| 1073 | if (fe->ops.get_property) |
| 1074 | r = fe->ops.get_property(fe, tvp); |
| 1075 | |
| 1076 | if (r < 0) |
| 1077 | return r; |
| 1078 | |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1079 | switch(tvp->cmd) { |
| 1080 | case DTV_FREQUENCY: |
| 1081 | tvp->u.data = fe->dtv_property_cache.frequency; |
| 1082 | break; |
| 1083 | case DTV_MODULATION: |
| 1084 | tvp->u.data = fe->dtv_property_cache.modulation; |
| 1085 | break; |
Steven Toth | 75b7f94 | 2008-09-13 16:56:34 -0300 | [diff] [blame] | 1086 | case DTV_BANDWIDTH_HZ: |
| 1087 | tvp->u.data = fe->dtv_property_cache.bandwidth_hz; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1088 | break; |
| 1089 | case DTV_INVERSION: |
| 1090 | tvp->u.data = fe->dtv_property_cache.inversion; |
| 1091 | break; |
| 1092 | case DTV_SYMBOL_RATE: |
| 1093 | tvp->u.data = fe->dtv_property_cache.symbol_rate; |
| 1094 | break; |
| 1095 | case DTV_INNER_FEC: |
| 1096 | tvp->u.data = fe->dtv_property_cache.fec_inner; |
| 1097 | break; |
| 1098 | case DTV_PILOT: |
| 1099 | tvp->u.data = fe->dtv_property_cache.pilot; |
| 1100 | break; |
| 1101 | case DTV_ROLLOFF: |
| 1102 | tvp->u.data = fe->dtv_property_cache.rolloff; |
| 1103 | break; |
| 1104 | case DTV_DELIVERY_SYSTEM: |
| 1105 | tvp->u.data = fe->dtv_property_cache.delivery_system; |
| 1106 | break; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1107 | case DTV_VOLTAGE: |
| 1108 | tvp->u.data = fe->dtv_property_cache.voltage; |
| 1109 | break; |
| 1110 | case DTV_TONE: |
| 1111 | tvp->u.data = fe->dtv_property_cache.sectone; |
| 1112 | break; |
Steven Toth | eacf8d8 | 2008-09-26 00:29:49 -0300 | [diff] [blame^] | 1113 | case DTV_API_VERSION: |
| 1114 | tvp->u.data = (DVB_API_VERSION << 8) | DVB_API_VERSION_MINOR; |
| 1115 | break; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1116 | default: |
| 1117 | r = -1; |
| 1118 | } |
| 1119 | |
| 1120 | return r; |
| 1121 | } |
| 1122 | |
| 1123 | int dtv_property_process_set(struct dvb_frontend *fe, struct dtv_property *tvp, |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1124 | struct inode *inode, struct file *file) |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1125 | { |
| 1126 | int r = 0; |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1127 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1128 | printk("%s()\n", __FUNCTION__); |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame] | 1129 | dtv_property_dump(tvp); |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1130 | |
Steven Toth | bfbf2da | 2008-09-12 01:37:37 -0300 | [diff] [blame] | 1131 | /* Allow the frontend to validate incoming properties */ |
| 1132 | if (fe->ops.set_property) |
| 1133 | r = fe->ops.set_property(fe, tvp); |
| 1134 | |
| 1135 | if (r < 0) |
| 1136 | return r; |
| 1137 | |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1138 | switch(tvp->cmd) { |
Steven Toth | e7fee0f3 | 2008-09-11 10:23:01 -0300 | [diff] [blame] | 1139 | case DTV_CLEAR: |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1140 | /* Reset a cache of data specific to the frontend here. This does |
| 1141 | * not effect hardware. |
| 1142 | */ |
| 1143 | printk("%s() Flushing property cache\n", __FUNCTION__); |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame] | 1144 | memset(&fe->dtv_property_cache, 0, sizeof(struct dtv_frontend_properties)); |
Steven Toth | e7fee0f3 | 2008-09-11 10:23:01 -0300 | [diff] [blame] | 1145 | fe->dtv_property_cache.state = tvp->cmd; |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame] | 1146 | fe->dtv_property_cache.delivery_system = SYS_UNDEFINED; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1147 | break; |
Steven Toth | e7fee0f3 | 2008-09-11 10:23:01 -0300 | [diff] [blame] | 1148 | case DTV_TUNE: |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1149 | /* interpret the cache of data, build either a traditional frontend |
Steven Toth | d5748f1 | 2008-09-12 00:27:13 -0300 | [diff] [blame] | 1150 | * tunerequest so we can pass validation in the FE_SET_FRONTEND |
| 1151 | * ioctl. |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1152 | */ |
Steven Toth | e7fee0f3 | 2008-09-11 10:23:01 -0300 | [diff] [blame] | 1153 | fe->dtv_property_cache.state = tvp->cmd; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1154 | printk("%s() Finalised property cache\n", __FUNCTION__); |
Steven Toth | d5748f1 | 2008-09-12 00:27:13 -0300 | [diff] [blame] | 1155 | dtv_property_cache_submit(fe); |
| 1156 | |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1157 | r |= dvb_frontend_ioctl_legacy(inode, file, FE_SET_FRONTEND, |
| 1158 | &fepriv->parameters); |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1159 | break; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1160 | case DTV_FREQUENCY: |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame] | 1161 | fe->dtv_property_cache.frequency = tvp->u.data; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1162 | break; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1163 | case DTV_MODULATION: |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame] | 1164 | fe->dtv_property_cache.modulation = tvp->u.data; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1165 | break; |
Steven Toth | 75b7f94 | 2008-09-13 16:56:34 -0300 | [diff] [blame] | 1166 | case DTV_BANDWIDTH_HZ: |
| 1167 | fe->dtv_property_cache.bandwidth_hz = tvp->u.data; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1168 | break; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1169 | case DTV_INVERSION: |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame] | 1170 | fe->dtv_property_cache.inversion = tvp->u.data; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1171 | break; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1172 | case DTV_SYMBOL_RATE: |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame] | 1173 | fe->dtv_property_cache.symbol_rate = tvp->u.data; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1174 | break; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1175 | case DTV_INNER_FEC: |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame] | 1176 | fe->dtv_property_cache.fec_inner = tvp->u.data; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1177 | break; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1178 | case DTV_PILOT: |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame] | 1179 | fe->dtv_property_cache.pilot = tvp->u.data; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1180 | break; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1181 | case DTV_ROLLOFF: |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame] | 1182 | fe->dtv_property_cache.rolloff = tvp->u.data; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1183 | break; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1184 | case DTV_DELIVERY_SYSTEM: |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame] | 1185 | fe->dtv_property_cache.delivery_system = tvp->u.data; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1186 | break; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1187 | case DTV_VOLTAGE: |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame] | 1188 | fe->dtv_property_cache.voltage = tvp->u.data; |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1189 | r = dvb_frontend_ioctl_legacy(inode, file, FE_SET_VOLTAGE, |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame] | 1190 | (void *)fe->dtv_property_cache.voltage); |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1191 | break; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1192 | case DTV_TONE: |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame] | 1193 | fe->dtv_property_cache.sectone = tvp->u.data; |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1194 | r = dvb_frontend_ioctl_legacy(inode, file, FE_SET_TONE, |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame] | 1195 | (void *)fe->dtv_property_cache.sectone); |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1196 | break; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1197 | default: |
| 1198 | r = -1; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1199 | } |
| 1200 | |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1201 | return r; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1202 | } |
| 1203 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1204 | static int dvb_frontend_ioctl(struct inode *inode, struct file *file, |
| 1205 | unsigned int cmd, void *parg) |
| 1206 | { |
| 1207 | struct dvb_device *dvbdev = file->private_data; |
| 1208 | struct dvb_frontend *fe = dvbdev->priv; |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 1209 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1210 | int err = -EOPNOTSUPP; |
| 1211 | |
Harvey Harrison | 46b4f7c | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 1212 | dprintk ("%s\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1213 | |
Adrian Bunk | 813ce47 | 2007-08-01 10:13:36 -0300 | [diff] [blame] | 1214 | if (fepriv->exit) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1215 | return -ENODEV; |
| 1216 | |
| 1217 | if ((file->f_flags & O_ACCMODE) == O_RDONLY && |
| 1218 | (_IOC_DIR(cmd) != _IOC_READ || cmd == FE_GET_EVENT || |
| 1219 | cmd == FE_DISEQC_RECV_SLAVE_REPLY)) |
| 1220 | return -EPERM; |
| 1221 | |
| 1222 | if (down_interruptible (&fepriv->sem)) |
| 1223 | return -ERESTARTSYS; |
| 1224 | |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1225 | if ((cmd == FE_SET_PROPERTY) || (cmd == FE_GET_PROPERTY)) |
| 1226 | err = dvb_frontend_ioctl_properties(inode, file, cmd, parg); |
Steven Toth | 4dd88be | 2008-09-13 15:09:07 -0300 | [diff] [blame] | 1227 | else { |
| 1228 | fe->dtv_property_cache.state = DTV_UNDEFINED; |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1229 | err = dvb_frontend_ioctl_legacy(inode, file, cmd, parg); |
Steven Toth | 4dd88be | 2008-09-13 15:09:07 -0300 | [diff] [blame] | 1230 | } |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1231 | |
| 1232 | up(&fepriv->sem); |
| 1233 | return err; |
| 1234 | } |
| 1235 | |
| 1236 | static int dvb_frontend_ioctl_properties(struct inode *inode, struct file *file, |
| 1237 | unsigned int cmd, void *parg) |
| 1238 | { |
| 1239 | struct dvb_device *dvbdev = file->private_data; |
| 1240 | struct dvb_frontend *fe = dvbdev->priv; |
Igor M. Liplianin | e6f9ec8 | 2008-09-12 14:49:06 -0300 | [diff] [blame] | 1241 | int err = 0; |
Steven Toth | e7fee0f3 | 2008-09-11 10:23:01 -0300 | [diff] [blame] | 1242 | |
| 1243 | struct dtv_properties *tvps = NULL; |
| 1244 | struct dtv_property *tvp = NULL; |
| 1245 | int i; |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1246 | |
| 1247 | dprintk("%s\n", __func__); |
| 1248 | |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1249 | if(cmd == FE_SET_PROPERTY) { |
| 1250 | printk("%s() FE_SET_PROPERTY\n", __FUNCTION__); |
| 1251 | |
Steven Toth | e7fee0f3 | 2008-09-11 10:23:01 -0300 | [diff] [blame] | 1252 | tvps = (struct dtv_properties __user *)parg; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1253 | |
Steven Toth | e7fee0f3 | 2008-09-11 10:23:01 -0300 | [diff] [blame] | 1254 | printk("%s() properties.num = %d\n", __FUNCTION__, tvps->num); |
| 1255 | printk("%s() properties.props = %p\n", __FUNCTION__, tvps->props); |
| 1256 | |
| 1257 | /* Put an arbitrary limit on the number of messages that can |
| 1258 | * be sent at once */ |
| 1259 | if (tvps->num > DTV_IOCTL_MAX_MSGS) |
| 1260 | return -EINVAL; |
| 1261 | |
| 1262 | tvp = (struct dtv_property *) kmalloc(tvps->num * |
| 1263 | sizeof(struct dtv_property), GFP_KERNEL); |
| 1264 | if (!tvp) { |
| 1265 | err = -ENOMEM; |
| 1266 | goto out; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1267 | } |
| 1268 | |
Steven Toth | e7fee0f3 | 2008-09-11 10:23:01 -0300 | [diff] [blame] | 1269 | if (copy_from_user(tvp, tvps->props, tvps->num * sizeof(struct dtv_property))) { |
| 1270 | err = -EFAULT; |
| 1271 | goto out; |
| 1272 | } |
| 1273 | |
Steven Toth | d48cb40 | 2008-09-26 00:16:25 -0300 | [diff] [blame] | 1274 | for (i = 0; i < tvps->num; i++) { |
| 1275 | (tvp + i)->result = dtv_property_process_set(fe, tvp + i, inode, file); |
| 1276 | err |= (tvp + i)->result; |
| 1277 | } |
Steven Toth | e7fee0f3 | 2008-09-11 10:23:01 -0300 | [diff] [blame] | 1278 | |
| 1279 | if(fe->dtv_property_cache.state == DTV_TUNE) { |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1280 | printk("%s() Property cache is full, tuning\n", __FUNCTION__); |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1281 | } |
Steven Toth | bfbf2da | 2008-09-12 01:37:37 -0300 | [diff] [blame] | 1282 | |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1283 | } else |
| 1284 | if(cmd == FE_GET_PROPERTY) { |
| 1285 | printk("%s() FE_GET_PROPERTY\n", __FUNCTION__); |
| 1286 | |
| 1287 | tvps = (struct dtv_properties __user *)parg; |
| 1288 | |
| 1289 | printk("%s() properties.num = %d\n", __FUNCTION__, tvps->num); |
| 1290 | printk("%s() properties.props = %p\n", __FUNCTION__, tvps->props); |
| 1291 | |
| 1292 | /* Put an arbitrary limit on the number of messages that can |
| 1293 | * be sent at once */ |
| 1294 | if (tvps->num > DTV_IOCTL_MAX_MSGS) |
| 1295 | return -EINVAL; |
| 1296 | |
| 1297 | tvp = (struct dtv_property *) kmalloc(tvps->num * |
| 1298 | sizeof(struct dtv_property), GFP_KERNEL); |
| 1299 | if (!tvp) { |
| 1300 | err = -ENOMEM; |
| 1301 | goto out; |
| 1302 | } |
| 1303 | |
| 1304 | if (copy_from_user(tvp, tvps->props, tvps->num * sizeof(struct dtv_property))) { |
| 1305 | err = -EFAULT; |
| 1306 | goto out; |
| 1307 | } |
| 1308 | |
Steven Toth | d48cb40 | 2008-09-26 00:16:25 -0300 | [diff] [blame] | 1309 | for (i = 0; i < tvps->num; i++) { |
| 1310 | (tvp + i)->result = dtv_property_process_get(fe, tvp + i, inode, file); |
| 1311 | err |= (tvp + i)->result; |
| 1312 | } |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1313 | |
| 1314 | if (copy_to_user(tvps->props, tvp, tvps->num * sizeof(struct dtv_property))) { |
| 1315 | err = -EFAULT; |
| 1316 | goto out; |
| 1317 | } |
| 1318 | |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1319 | } else |
| 1320 | err = -EOPNOTSUPP; |
| 1321 | |
Steven Toth | e7fee0f3 | 2008-09-11 10:23:01 -0300 | [diff] [blame] | 1322 | out: |
| 1323 | kfree(tvp); |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1324 | return err; |
| 1325 | } |
| 1326 | |
| 1327 | static int dvb_frontend_ioctl_legacy(struct inode *inode, struct file *file, |
| 1328 | unsigned int cmd, void *parg) |
| 1329 | { |
| 1330 | struct dvb_device *dvbdev = file->private_data; |
| 1331 | struct dvb_frontend *fe = dvbdev->priv; |
| 1332 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
| 1333 | int err = -EOPNOTSUPP; |
| 1334 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1335 | switch (cmd) { |
| 1336 | case FE_GET_INFO: { |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 1337 | struct dvb_frontend_info* info = parg; |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1338 | memcpy(info, &fe->ops.info, sizeof(struct dvb_frontend_info)); |
Oliver Endriss | c471b33 | 2007-08-09 01:03:42 -0300 | [diff] [blame] | 1339 | dvb_frontend_get_frequeny_limits(fe, &info->frequency_min, &info->frequency_max); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1340 | |
| 1341 | /* Force the CAN_INVERSION_AUTO bit on. If the frontend doesn't |
| 1342 | * do it, it is done for it. */ |
| 1343 | info->caps |= FE_CAN_INVERSION_AUTO; |
| 1344 | err = 0; |
| 1345 | break; |
| 1346 | } |
| 1347 | |
Peter Beutner | 6757ccc | 2005-07-07 17:57:36 -0700 | [diff] [blame] | 1348 | case FE_READ_STATUS: { |
| 1349 | fe_status_t* status = parg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1350 | |
Peter Beutner | 6757ccc | 2005-07-07 17:57:36 -0700 | [diff] [blame] | 1351 | /* if retune was requested but hasn't occured yet, prevent |
| 1352 | * that user get signal state from previous tuning */ |
| 1353 | if(fepriv->state == FESTATE_RETUNE) { |
| 1354 | err=0; |
| 1355 | *status = 0; |
| 1356 | break; |
| 1357 | } |
| 1358 | |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1359 | if (fe->ops.read_status) |
| 1360 | err = fe->ops.read_status(fe, status); |
Peter Beutner | 6757ccc | 2005-07-07 17:57:36 -0700 | [diff] [blame] | 1361 | break; |
| 1362 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1363 | case FE_READ_BER: |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1364 | if (fe->ops.read_ber) |
| 1365 | err = fe->ops.read_ber(fe, (__u32*) parg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1366 | break; |
| 1367 | |
| 1368 | case FE_READ_SIGNAL_STRENGTH: |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1369 | if (fe->ops.read_signal_strength) |
| 1370 | err = fe->ops.read_signal_strength(fe, (__u16*) parg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1371 | break; |
| 1372 | |
| 1373 | case FE_READ_SNR: |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1374 | if (fe->ops.read_snr) |
| 1375 | err = fe->ops.read_snr(fe, (__u16*) parg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1376 | break; |
| 1377 | |
| 1378 | case FE_READ_UNCORRECTED_BLOCKS: |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1379 | if (fe->ops.read_ucblocks) |
| 1380 | err = fe->ops.read_ucblocks(fe, (__u32*) parg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1381 | break; |
| 1382 | |
| 1383 | |
| 1384 | case FE_DISEQC_RESET_OVERLOAD: |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1385 | if (fe->ops.diseqc_reset_overload) { |
| 1386 | err = fe->ops.diseqc_reset_overload(fe); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1387 | fepriv->state = FESTATE_DISEQC; |
| 1388 | fepriv->status = 0; |
| 1389 | } |
| 1390 | break; |
| 1391 | |
| 1392 | case FE_DISEQC_SEND_MASTER_CMD: |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1393 | if (fe->ops.diseqc_send_master_cmd) { |
| 1394 | err = fe->ops.diseqc_send_master_cmd(fe, (struct dvb_diseqc_master_cmd*) parg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1395 | fepriv->state = FESTATE_DISEQC; |
| 1396 | fepriv->status = 0; |
| 1397 | } |
| 1398 | break; |
| 1399 | |
| 1400 | case FE_DISEQC_SEND_BURST: |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1401 | if (fe->ops.diseqc_send_burst) { |
| 1402 | err = fe->ops.diseqc_send_burst(fe, (fe_sec_mini_cmd_t) parg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1403 | fepriv->state = FESTATE_DISEQC; |
| 1404 | fepriv->status = 0; |
| 1405 | } |
| 1406 | break; |
| 1407 | |
| 1408 | case FE_SET_TONE: |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1409 | if (fe->ops.set_tone) { |
| 1410 | err = fe->ops.set_tone(fe, (fe_sec_tone_mode_t) parg); |
Andrew de Quincey | 6445401 | 2006-04-06 14:32:23 -0300 | [diff] [blame] | 1411 | fepriv->tone = (fe_sec_tone_mode_t) parg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1412 | fepriv->state = FESTATE_DISEQC; |
| 1413 | fepriv->status = 0; |
| 1414 | } |
| 1415 | break; |
| 1416 | |
| 1417 | case FE_SET_VOLTAGE: |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1418 | if (fe->ops.set_voltage) { |
| 1419 | err = fe->ops.set_voltage(fe, (fe_sec_voltage_t) parg); |
Andrew de Quincey | 6445401 | 2006-04-06 14:32:23 -0300 | [diff] [blame] | 1420 | fepriv->voltage = (fe_sec_voltage_t) parg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1421 | fepriv->state = FESTATE_DISEQC; |
| 1422 | fepriv->status = 0; |
| 1423 | } |
| 1424 | break; |
| 1425 | |
| 1426 | case FE_DISHNETWORK_SEND_LEGACY_CMD: |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1427 | if (fe->ops.dishnetwork_send_legacy_command) { |
| 1428 | err = fe->ops.dishnetwork_send_legacy_command(fe, (unsigned long) parg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1429 | fepriv->state = FESTATE_DISEQC; |
| 1430 | fepriv->status = 0; |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1431 | } else if (fe->ops.set_voltage) { |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 1432 | /* |
| 1433 | * NOTE: This is a fallback condition. Some frontends |
| 1434 | * (stv0299 for instance) take longer than 8msec to |
| 1435 | * respond to a set_voltage command. Those switches |
| 1436 | * need custom routines to switch properly. For all |
| 1437 | * other frontends, the following shoule work ok. |
| 1438 | * Dish network legacy switches (as used by Dish500) |
| 1439 | * are controlled by sending 9-bit command words |
| 1440 | * spaced 8msec apart. |
| 1441 | * the actual command word is switch/port dependant |
| 1442 | * so it is up to the userspace application to send |
| 1443 | * the right command. |
| 1444 | * The command must always start with a '0' after |
| 1445 | * initialization, so parg is 8 bits and does not |
| 1446 | * include the initialization or start bit |
| 1447 | */ |
Hans Verkuil | c6eb8ea | 2008-09-03 17:11:54 -0300 | [diff] [blame] | 1448 | unsigned long swcmd = ((unsigned long) parg) << 1; |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 1449 | struct timeval nexttime; |
| 1450 | struct timeval tv[10]; |
| 1451 | int i; |
| 1452 | u8 last = 1; |
| 1453 | if (dvb_frontend_debug) |
Hans Verkuil | c6eb8ea | 2008-09-03 17:11:54 -0300 | [diff] [blame] | 1454 | printk("%s switch command: 0x%04lx\n", __func__, swcmd); |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 1455 | do_gettimeofday(&nexttime); |
| 1456 | if (dvb_frontend_debug) |
| 1457 | memcpy(&tv[0], &nexttime, sizeof(struct timeval)); |
| 1458 | /* before sending a command, initialize by sending |
| 1459 | * a 32ms 18V to the switch |
| 1460 | */ |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1461 | fe->ops.set_voltage(fe, SEC_VOLTAGE_18); |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 1462 | dvb_frontend_sleep_until(&nexttime, 32000); |
| 1463 | |
| 1464 | for (i = 0; i < 9; i++) { |
| 1465 | if (dvb_frontend_debug) |
| 1466 | do_gettimeofday(&tv[i + 1]); |
Hans Verkuil | c6eb8ea | 2008-09-03 17:11:54 -0300 | [diff] [blame] | 1467 | if ((swcmd & 0x01) != last) { |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 1468 | /* set voltage to (last ? 13V : 18V) */ |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1469 | fe->ops.set_voltage(fe, (last) ? SEC_VOLTAGE_13 : SEC_VOLTAGE_18); |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 1470 | last = (last) ? 0 : 1; |
| 1471 | } |
Hans Verkuil | c6eb8ea | 2008-09-03 17:11:54 -0300 | [diff] [blame] | 1472 | swcmd = swcmd >> 1; |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 1473 | if (i != 8) |
| 1474 | dvb_frontend_sleep_until(&nexttime, 8000); |
| 1475 | } |
| 1476 | if (dvb_frontend_debug) { |
| 1477 | printk("%s(%d): switch delay (should be 32k followed by all 8k\n", |
Harvey Harrison | 46b4f7c | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 1478 | __func__, fe->dvb->num); |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 1479 | for (i = 1; i < 10; i++) |
| 1480 | printk("%d: %d\n", i, timeval_usec_diff(tv[i-1] , tv[i])); |
| 1481 | } |
| 1482 | err = 0; |
| 1483 | fepriv->state = FESTATE_DISEQC; |
| 1484 | fepriv->status = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1485 | } |
| 1486 | break; |
| 1487 | |
| 1488 | case FE_DISEQC_RECV_SLAVE_REPLY: |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1489 | if (fe->ops.diseqc_recv_slave_reply) |
| 1490 | err = fe->ops.diseqc_recv_slave_reply(fe, (struct dvb_diseqc_slave_reply*) parg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1491 | break; |
| 1492 | |
| 1493 | case FE_ENABLE_HIGH_LNB_VOLTAGE: |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1494 | if (fe->ops.enable_high_lnb_voltage) |
| 1495 | err = fe->ops.enable_high_lnb_voltage(fe, (long) parg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1496 | break; |
| 1497 | |
| 1498 | case FE_SET_FRONTEND: { |
| 1499 | struct dvb_frontend_tune_settings fetunesettings; |
| 1500 | |
Steven Toth | e7fee0f3 | 2008-09-11 10:23:01 -0300 | [diff] [blame] | 1501 | if(fe->dtv_property_cache.state == DTV_TUNE) { |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1502 | if (dvb_frontend_check_parameters(fe, &fepriv->parameters) < 0) { |
| 1503 | err = -EINVAL; |
| 1504 | break; |
| 1505 | } |
| 1506 | } else { |
| 1507 | if (dvb_frontend_check_parameters(fe, parg) < 0) { |
| 1508 | err = -EINVAL; |
| 1509 | break; |
| 1510 | } |
Oliver Endriss | 1fab46f | 2007-07-23 21:00:36 -0300 | [diff] [blame] | 1511 | |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1512 | memcpy (&fepriv->parameters, parg, |
| 1513 | sizeof (struct dvb_frontend_parameters)); |
Steven Toth | 1d78cac | 2008-09-13 18:15:17 -0300 | [diff] [blame] | 1514 | dtv_property_cache_sync(fe, &fepriv->parameters); |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1515 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1516 | |
| 1517 | memset(&fetunesettings, 0, sizeof(struct dvb_frontend_tune_settings)); |
| 1518 | memcpy(&fetunesettings.parameters, parg, |
| 1519 | sizeof (struct dvb_frontend_parameters)); |
| 1520 | |
| 1521 | /* force auto frequency inversion if requested */ |
| 1522 | if (dvb_force_auto_inversion) { |
| 1523 | fepriv->parameters.inversion = INVERSION_AUTO; |
| 1524 | fetunesettings.parameters.inversion = INVERSION_AUTO; |
| 1525 | } |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1526 | if (fe->ops.info.type == FE_OFDM) { |
Uwe Kleine-König | 1b3c371 | 2007-02-17 19:23:03 +0100 | [diff] [blame] | 1527 | /* without hierarchical coding code_rate_LP is irrelevant, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1528 | * so we tolerate the otherwise invalid FEC_NONE setting */ |
| 1529 | if (fepriv->parameters.u.ofdm.hierarchy_information == HIERARCHY_NONE && |
| 1530 | fepriv->parameters.u.ofdm.code_rate_LP == FEC_NONE) |
| 1531 | fepriv->parameters.u.ofdm.code_rate_LP = FEC_AUTO; |
| 1532 | } |
| 1533 | |
| 1534 | /* get frontend-specific tuning settings */ |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1535 | if (fe->ops.get_tune_settings && (fe->ops.get_tune_settings(fe, &fetunesettings) == 0)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1536 | fepriv->min_delay = (fetunesettings.min_delay_ms * HZ) / 1000; |
| 1537 | fepriv->max_drift = fetunesettings.max_drift; |
| 1538 | fepriv->step_size = fetunesettings.step_size; |
| 1539 | } else { |
| 1540 | /* default values */ |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1541 | switch(fe->ops.info.type) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1542 | case FE_QPSK: |
| 1543 | fepriv->min_delay = HZ/20; |
| 1544 | fepriv->step_size = fepriv->parameters.u.qpsk.symbol_rate / 16000; |
| 1545 | fepriv->max_drift = fepriv->parameters.u.qpsk.symbol_rate / 2000; |
| 1546 | break; |
| 1547 | |
| 1548 | case FE_QAM: |
| 1549 | fepriv->min_delay = HZ/20; |
| 1550 | fepriv->step_size = 0; /* no zigzag */ |
| 1551 | fepriv->max_drift = 0; |
| 1552 | break; |
| 1553 | |
| 1554 | case FE_OFDM: |
| 1555 | fepriv->min_delay = HZ/20; |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1556 | fepriv->step_size = fe->ops.info.frequency_stepsize * 2; |
| 1557 | fepriv->max_drift = (fe->ops.info.frequency_stepsize * 2) + 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1558 | break; |
| 1559 | case FE_ATSC: |
Manu Abraham | 4821fb1 | 2006-06-21 10:27:00 -0300 | [diff] [blame] | 1560 | fepriv->min_delay = HZ/20; |
| 1561 | fepriv->step_size = 0; |
| 1562 | fepriv->max_drift = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1563 | break; |
| 1564 | } |
| 1565 | } |
| 1566 | if (dvb_override_tune_delay > 0) |
| 1567 | fepriv->min_delay = (dvb_override_tune_delay * HZ) / 1000; |
| 1568 | |
| 1569 | fepriv->state = FESTATE_RETUNE; |
| 1570 | dvb_frontend_wakeup(fe); |
| 1571 | dvb_frontend_add_event(fe, 0); |
| 1572 | fepriv->status = 0; |
| 1573 | err = 0; |
| 1574 | break; |
| 1575 | } |
| 1576 | |
| 1577 | case FE_GET_EVENT: |
| 1578 | err = dvb_frontend_get_event (fe, parg, file->f_flags); |
| 1579 | break; |
| 1580 | |
| 1581 | case FE_GET_FRONTEND: |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1582 | if (fe->ops.get_frontend) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1583 | memcpy (parg, &fepriv->parameters, sizeof (struct dvb_frontend_parameters)); |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1584 | err = fe->ops.get_frontend(fe, (struct dvb_frontend_parameters*) parg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1585 | } |
| 1586 | break; |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 1587 | |
| 1588 | case FE_SET_FRONTEND_TUNE_MODE: |
Hans Verkuil | e18828e | 2006-01-09 15:25:28 -0200 | [diff] [blame] | 1589 | fepriv->tune_mode_flags = (unsigned long) parg; |
Trent Piepho | 1b172e0 | 2006-06-29 13:16:04 -0300 | [diff] [blame] | 1590 | err = 0; |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 1591 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1592 | }; |
| 1593 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1594 | return err; |
| 1595 | } |
| 1596 | |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1597 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1598 | static unsigned int dvb_frontend_poll(struct file *file, struct poll_table_struct *wait) |
| 1599 | { |
| 1600 | struct dvb_device *dvbdev = file->private_data; |
| 1601 | struct dvb_frontend *fe = dvbdev->priv; |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 1602 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1603 | |
Harvey Harrison | 46b4f7c | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 1604 | dprintk ("%s\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1605 | |
| 1606 | poll_wait (file, &fepriv->events.wait_queue, wait); |
| 1607 | |
| 1608 | if (fepriv->events.eventw != fepriv->events.eventr) |
| 1609 | return (POLLIN | POLLRDNORM | POLLPRI); |
| 1610 | |
| 1611 | return 0; |
| 1612 | } |
| 1613 | |
| 1614 | static int dvb_frontend_open(struct inode *inode, struct file *file) |
| 1615 | { |
| 1616 | struct dvb_device *dvbdev = file->private_data; |
| 1617 | struct dvb_frontend *fe = dvbdev->priv; |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 1618 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1619 | int ret; |
| 1620 | |
Harvey Harrison | 46b4f7c | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 1621 | dprintk ("%s\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1622 | |
Oliver Endriss | 48136e1 | 2007-08-25 12:00:23 -0300 | [diff] [blame] | 1623 | if (dvbdev->users == -1 && fe->ops.ts_bus_ctrl) { |
| 1624 | if ((ret = fe->ops.ts_bus_ctrl(fe, 1)) < 0) |
Steven Toth | ba7e6f3 | 2006-09-25 12:41:53 -0300 | [diff] [blame] | 1625 | return ret; |
Steven Toth | ba7e6f3 | 2006-09-25 12:41:53 -0300 | [diff] [blame] | 1626 | } |
| 1627 | |
Oliver Endriss | 48136e1 | 2007-08-25 12:00:23 -0300 | [diff] [blame] | 1628 | if ((ret = dvb_generic_open (inode, file)) < 0) |
| 1629 | goto err1; |
Andrew de Quincey | 04c56d0 | 2006-07-10 03:34:14 -0300 | [diff] [blame] | 1630 | |
Oliver Endriss | 48136e1 | 2007-08-25 12:00:23 -0300 | [diff] [blame] | 1631 | if ((file->f_flags & O_ACCMODE) != O_RDONLY) { |
Andrew de Quincey | 04c56d0 | 2006-07-10 03:34:14 -0300 | [diff] [blame] | 1632 | /* normal tune mode when opened R/W */ |
| 1633 | fepriv->tune_mode_flags &= ~FE_TUNE_MODE_ONESHOT; |
| 1634 | fepriv->tone = -1; |
| 1635 | fepriv->voltage = -1; |
| 1636 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1637 | ret = dvb_frontend_start (fe); |
| 1638 | if (ret) |
Oliver Endriss | 48136e1 | 2007-08-25 12:00:23 -0300 | [diff] [blame] | 1639 | goto err2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1640 | |
| 1641 | /* empty event queue */ |
| 1642 | fepriv->events.eventr = fepriv->events.eventw = 0; |
| 1643 | } |
| 1644 | |
| 1645 | return ret; |
Oliver Endriss | 48136e1 | 2007-08-25 12:00:23 -0300 | [diff] [blame] | 1646 | |
| 1647 | err2: |
| 1648 | dvb_generic_release(inode, file); |
| 1649 | err1: |
| 1650 | if (dvbdev->users == -1 && fe->ops.ts_bus_ctrl) |
| 1651 | fe->ops.ts_bus_ctrl(fe, 0); |
| 1652 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1653 | } |
| 1654 | |
| 1655 | static int dvb_frontend_release(struct inode *inode, struct file *file) |
| 1656 | { |
| 1657 | struct dvb_device *dvbdev = file->private_data; |
| 1658 | struct dvb_frontend *fe = dvbdev->priv; |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 1659 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Markus Rechberger | ca5be9c | 2007-04-14 10:18:58 -0300 | [diff] [blame] | 1660 | int ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1661 | |
Harvey Harrison | 46b4f7c | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 1662 | dprintk ("%s\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1663 | |
| 1664 | if ((file->f_flags & O_ACCMODE) != O_RDONLY) |
| 1665 | fepriv->release_jiffies = jiffies; |
| 1666 | |
Markus Rechberger | ca5be9c | 2007-04-14 10:18:58 -0300 | [diff] [blame] | 1667 | ret = dvb_generic_release (inode, file); |
| 1668 | |
Oliver Endriss | 48136e1 | 2007-08-25 12:00:23 -0300 | [diff] [blame] | 1669 | if (dvbdev->users == -1) { |
| 1670 | if (fepriv->exit == 1) { |
| 1671 | fops_put(file->f_op); |
| 1672 | file->f_op = NULL; |
| 1673 | wake_up(&dvbdev->wait_queue); |
| 1674 | } |
| 1675 | if (fe->ops.ts_bus_ctrl) |
| 1676 | fe->ops.ts_bus_ctrl(fe, 0); |
Markus Rechberger | ca5be9c | 2007-04-14 10:18:58 -0300 | [diff] [blame] | 1677 | } |
Oliver Endriss | 48136e1 | 2007-08-25 12:00:23 -0300 | [diff] [blame] | 1678 | |
Markus Rechberger | ca5be9c | 2007-04-14 10:18:58 -0300 | [diff] [blame] | 1679 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1680 | } |
| 1681 | |
| 1682 | static struct file_operations dvb_frontend_fops = { |
| 1683 | .owner = THIS_MODULE, |
| 1684 | .ioctl = dvb_generic_ioctl, |
| 1685 | .poll = dvb_frontend_poll, |
| 1686 | .open = dvb_frontend_open, |
| 1687 | .release = dvb_frontend_release |
| 1688 | }; |
| 1689 | |
| 1690 | int dvb_register_frontend(struct dvb_adapter* dvb, |
| 1691 | struct dvb_frontend* fe) |
| 1692 | { |
| 1693 | struct dvb_frontend_private *fepriv; |
| 1694 | static const struct dvb_device dvbdev_template = { |
| 1695 | .users = ~0, |
| 1696 | .writers = 1, |
| 1697 | .readers = (~0)-1, |
| 1698 | .fops = &dvb_frontend_fops, |
| 1699 | .kernel_ioctl = dvb_frontend_ioctl |
| 1700 | }; |
| 1701 | |
Harvey Harrison | 46b4f7c | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 1702 | dprintk ("%s\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1703 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 1704 | if (mutex_lock_interruptible(&frontend_mutex)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1705 | return -ERESTARTSYS; |
| 1706 | |
Panagiotis Issaris | 7408187 | 2006-01-11 19:40:56 -0200 | [diff] [blame] | 1707 | fe->frontend_priv = kzalloc(sizeof(struct dvb_frontend_private), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1708 | if (fe->frontend_priv == NULL) { |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 1709 | mutex_unlock(&frontend_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1710 | return -ENOMEM; |
| 1711 | } |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 1712 | fepriv = fe->frontend_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1713 | |
| 1714 | init_MUTEX (&fepriv->sem); |
| 1715 | init_waitqueue_head (&fepriv->wait_queue); |
| 1716 | init_waitqueue_head (&fepriv->events.wait_queue); |
Matthias Kaehlcke | 03b7612 | 2007-07-30 14:58:10 -0300 | [diff] [blame] | 1717 | mutex_init(&fepriv->events.mtx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1718 | fe->dvb = dvb; |
| 1719 | fepriv->inversion = INVERSION_OFF; |
| 1720 | |
| 1721 | printk ("DVB: registering frontend %i (%s)...\n", |
| 1722 | fe->dvb->num, |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1723 | fe->ops.info.name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1724 | |
| 1725 | dvb_register_device (fe->dvb, &fepriv->dvbdev, &dvbdev_template, |
| 1726 | fe, DVB_DEVICE_FRONTEND); |
| 1727 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 1728 | mutex_unlock(&frontend_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1729 | return 0; |
| 1730 | } |
| 1731 | EXPORT_SYMBOL(dvb_register_frontend); |
| 1732 | |
| 1733 | int dvb_unregister_frontend(struct dvb_frontend* fe) |
| 1734 | { |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 1735 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Harvey Harrison | 46b4f7c | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 1736 | dprintk ("%s\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1737 | |
Markus Rechberger | 57861b4 | 2007-04-14 10:19:18 -0300 | [diff] [blame] | 1738 | mutex_lock(&frontend_mutex); |
Markus Rechberger | ca5be9c | 2007-04-14 10:18:58 -0300 | [diff] [blame] | 1739 | dvb_frontend_stop (fe); |
Markus Rechberger | 57861b4 | 2007-04-14 10:19:18 -0300 | [diff] [blame] | 1740 | mutex_unlock(&frontend_mutex); |
| 1741 | |
| 1742 | if (fepriv->dvbdev->users < -1) |
| 1743 | wait_event(fepriv->dvbdev->wait_queue, |
| 1744 | fepriv->dvbdev->users==-1); |
| 1745 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 1746 | mutex_lock(&frontend_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1747 | dvb_unregister_device (fepriv->dvbdev); |
Andrew de Quincey | d995506 | 2006-08-08 09:10:08 -0300 | [diff] [blame] | 1748 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1749 | /* fe is invalid now */ |
| 1750 | kfree(fepriv); |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 1751 | mutex_unlock(&frontend_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1752 | return 0; |
| 1753 | } |
| 1754 | EXPORT_SYMBOL(dvb_unregister_frontend); |
Andrew de Quincey | f52a838 | 2006-08-08 09:10:09 -0300 | [diff] [blame] | 1755 | |
Mauro Carvalho Chehab | 149ef72 | 2008-04-29 21:38:46 -0300 | [diff] [blame] | 1756 | #ifdef CONFIG_MEDIA_ATTACH |
Andrew de Quincey | f52a838 | 2006-08-08 09:10:09 -0300 | [diff] [blame] | 1757 | void dvb_frontend_detach(struct dvb_frontend* fe) |
| 1758 | { |
| 1759 | void *ptr; |
| 1760 | |
| 1761 | if (fe->ops.release_sec) { |
| 1762 | fe->ops.release_sec(fe); |
| 1763 | symbol_put_addr(fe->ops.release_sec); |
| 1764 | } |
| 1765 | if (fe->ops.tuner_ops.release) { |
| 1766 | fe->ops.tuner_ops.release(fe); |
| 1767 | symbol_put_addr(fe->ops.tuner_ops.release); |
| 1768 | } |
Michael Krufky | 2426a27 | 2007-12-21 11:34:45 -0300 | [diff] [blame] | 1769 | if (fe->ops.analog_ops.release) { |
| 1770 | fe->ops.analog_ops.release(fe); |
| 1771 | symbol_put_addr(fe->ops.analog_ops.release); |
| 1772 | } |
Andrew de Quincey | f52a838 | 2006-08-08 09:10:09 -0300 | [diff] [blame] | 1773 | ptr = (void*)fe->ops.release; |
| 1774 | if (ptr) { |
| 1775 | fe->ops.release(fe); |
| 1776 | symbol_put_addr(ptr); |
| 1777 | } |
| 1778 | } |
| 1779 | #else |
| 1780 | void dvb_frontend_detach(struct dvb_frontend* fe) |
| 1781 | { |
| 1782 | if (fe->ops.release_sec) |
| 1783 | fe->ops.release_sec(fe); |
| 1784 | if (fe->ops.tuner_ops.release) |
| 1785 | fe->ops.tuner_ops.release(fe); |
Michael Krufky | 2426a27 | 2007-12-21 11:34:45 -0300 | [diff] [blame] | 1786 | if (fe->ops.analog_ops.release) |
| 1787 | fe->ops.analog_ops.release(fe); |
Andrew de Quincey | f52a838 | 2006-08-08 09:10:09 -0300 | [diff] [blame] | 1788 | if (fe->ops.release) |
| 1789 | fe->ops.release(fe); |
| 1790 | } |
| 1791 | #endif |
| 1792 | EXPORT_SYMBOL(dvb_frontend_detach); |