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" |
| 43 | |
| 44 | static int dvb_frontend_debug; |
Oliver Endriss | 849be2c | 2007-08-25 12:22:16 -0300 | [diff] [blame] | 45 | static int dvb_shutdown_timeout; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 46 | static int dvb_force_auto_inversion; |
| 47 | static int dvb_override_tune_delay; |
| 48 | static int dvb_powerdown_on_sleep = 1; |
| 49 | |
| 50 | module_param_named(frontend_debug, dvb_frontend_debug, int, 0644); |
Johannes Stezenbach | f4f009a | 2005-05-16 21:54:21 -0700 | [diff] [blame] | 51 | 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] | 52 | module_param(dvb_shutdown_timeout, int, 0644); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 53 | 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] | 54 | module_param(dvb_force_auto_inversion, int, 0644); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 55 | 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] | 56 | module_param(dvb_override_tune_delay, int, 0644); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 57 | 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] | 58 | module_param(dvb_powerdown_on_sleep, int, 0644); |
Uwe Bugla | a8558577 | 2006-04-11 10:21:37 -0300 | [diff] [blame] | 59 | 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] | 60 | |
| 61 | #define dprintk if (dvb_frontend_debug) printk |
| 62 | |
| 63 | #define FESTATE_IDLE 1 |
| 64 | #define FESTATE_RETUNE 2 |
| 65 | #define FESTATE_TUNING_FAST 4 |
| 66 | #define FESTATE_TUNING_SLOW 8 |
| 67 | #define FESTATE_TUNED 16 |
| 68 | #define FESTATE_ZIGZAG_FAST 32 |
| 69 | #define FESTATE_ZIGZAG_SLOW 64 |
| 70 | #define FESTATE_DISEQC 128 |
| 71 | #define FESTATE_WAITFORLOCK (FESTATE_TUNING_FAST | FESTATE_TUNING_SLOW | FESTATE_ZIGZAG_FAST | FESTATE_ZIGZAG_SLOW | FESTATE_DISEQC) |
| 72 | #define FESTATE_SEARCHING_FAST (FESTATE_TUNING_FAST | FESTATE_ZIGZAG_FAST) |
| 73 | #define FESTATE_SEARCHING_SLOW (FESTATE_TUNING_SLOW | FESTATE_ZIGZAG_SLOW) |
| 74 | #define FESTATE_LOSTLOCK (FESTATE_ZIGZAG_FAST | FESTATE_ZIGZAG_SLOW) |
Manu Abraham | 0249ef1 | 2006-06-21 10:27:31 -0300 | [diff] [blame] | 75 | |
| 76 | #define FE_ALGO_HW 1 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 77 | /* |
| 78 | * FESTATE_IDLE. No tuning parameters have been supplied and the loop is idling. |
| 79 | * FESTATE_RETUNE. Parameters have been supplied, but we have not yet performed the first tune. |
| 80 | * FESTATE_TUNING_FAST. Tuning parameters have been supplied and fast zigzag scan is in progress. |
| 81 | * FESTATE_TUNING_SLOW. Tuning parameters have been supplied. Fast zigzag failed, so we're trying again, but slower. |
| 82 | * FESTATE_TUNED. The frontend has successfully locked on. |
| 83 | * FESTATE_ZIGZAG_FAST. The lock has been lost, and a fast zigzag has been initiated to try and regain it. |
| 84 | * FESTATE_ZIGZAG_SLOW. The lock has been lost. Fast zigzag has been failed, so we're trying again, but slower. |
| 85 | * FESTATE_DISEQC. A DISEQC command has just been issued. |
| 86 | * FESTATE_WAITFORLOCK. When we're waiting for a lock. |
| 87 | * FESTATE_SEARCHING_FAST. When we're searching for a signal using a fast zigzag scan. |
| 88 | * FESTATE_SEARCHING_SLOW. When we're searching for a signal using a slow zigzag scan. |
| 89 | * FESTATE_LOSTLOCK. When the lock has been lost, and we're searching it again. |
| 90 | */ |
| 91 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 92 | static DEFINE_MUTEX(frontend_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 93 | |
| 94 | struct dvb_frontend_private { |
| 95 | |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 96 | /* thread/frontend values */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 97 | struct dvb_device *dvbdev; |
| 98 | struct dvb_frontend_parameters parameters; |
| 99 | struct dvb_fe_events events; |
| 100 | struct semaphore sem; |
| 101 | struct list_head list_head; |
| 102 | wait_queue_head_t wait_queue; |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 103 | struct task_struct *thread; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 104 | unsigned long release_jiffies; |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 105 | unsigned int exit; |
| 106 | unsigned int wakeup; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 107 | fe_status_t status; |
Peter Beutner | 400b708 | 2006-01-09 15:32:43 -0200 | [diff] [blame] | 108 | unsigned long tune_mode_flags; |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 109 | unsigned int delay; |
Andrew de Quincey | 86f40cc | 2006-03-30 15:53:35 -0300 | [diff] [blame] | 110 | unsigned int reinitialise; |
Andrew de Quincey | 6445401 | 2006-04-06 14:32:23 -0300 | [diff] [blame] | 111 | int tone; |
| 112 | int voltage; |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 113 | |
| 114 | /* swzigzag values */ |
| 115 | unsigned int state; |
| 116 | unsigned int bending; |
| 117 | int lnb_drift; |
| 118 | unsigned int inversion; |
| 119 | unsigned int auto_step; |
| 120 | unsigned int auto_sub_step; |
| 121 | unsigned int started_auto_step; |
| 122 | unsigned int min_delay; |
| 123 | unsigned int max_drift; |
| 124 | unsigned int step_size; |
| 125 | int quality; |
| 126 | unsigned int check_wrapped; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 127 | }; |
| 128 | |
Andrew de Quincey | 86f40cc | 2006-03-30 15:53:35 -0300 | [diff] [blame] | 129 | static void dvb_frontend_wakeup(struct dvb_frontend *fe); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 130 | |
| 131 | static void dvb_frontend_add_event(struct dvb_frontend *fe, fe_status_t status) |
| 132 | { |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 133 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 134 | struct dvb_fe_events *events = &fepriv->events; |
| 135 | struct dvb_frontend_event *e; |
| 136 | int wp; |
| 137 | |
Harvey Harrison | 46b4f7c | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 138 | dprintk ("%s\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 139 | |
Matthias Kaehlcke | 03b7612 | 2007-07-30 14:58:10 -0300 | [diff] [blame] | 140 | if (mutex_lock_interruptible (&events->mtx)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 141 | return; |
| 142 | |
| 143 | wp = (events->eventw + 1) % MAX_EVENT; |
| 144 | |
| 145 | if (wp == events->eventr) { |
| 146 | events->overflow = 1; |
| 147 | events->eventr = (events->eventr + 1) % MAX_EVENT; |
| 148 | } |
| 149 | |
| 150 | e = &events->events[events->eventw]; |
| 151 | |
| 152 | memcpy (&e->parameters, &fepriv->parameters, |
| 153 | sizeof (struct dvb_frontend_parameters)); |
| 154 | |
| 155 | if (status & FE_HAS_LOCK) |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 156 | if (fe->ops.get_frontend) |
| 157 | fe->ops.get_frontend(fe, &e->parameters); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 158 | |
| 159 | events->eventw = wp; |
| 160 | |
Matthias Kaehlcke | 03b7612 | 2007-07-30 14:58:10 -0300 | [diff] [blame] | 161 | mutex_unlock(&events->mtx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 162 | |
| 163 | e->status = status; |
| 164 | |
| 165 | wake_up_interruptible (&events->wait_queue); |
| 166 | } |
| 167 | |
| 168 | static int dvb_frontend_get_event(struct dvb_frontend *fe, |
| 169 | struct dvb_frontend_event *event, int flags) |
| 170 | { |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 171 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 172 | struct dvb_fe_events *events = &fepriv->events; |
| 173 | |
Harvey Harrison | 46b4f7c | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 174 | dprintk ("%s\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 175 | |
| 176 | if (events->overflow) { |
| 177 | events->overflow = 0; |
| 178 | return -EOVERFLOW; |
| 179 | } |
| 180 | |
| 181 | if (events->eventw == events->eventr) { |
| 182 | int ret; |
| 183 | |
| 184 | if (flags & O_NONBLOCK) |
| 185 | return -EWOULDBLOCK; |
| 186 | |
| 187 | up(&fepriv->sem); |
| 188 | |
| 189 | ret = wait_event_interruptible (events->wait_queue, |
| 190 | events->eventw != events->eventr); |
| 191 | |
| 192 | if (down_interruptible (&fepriv->sem)) |
| 193 | return -ERESTARTSYS; |
| 194 | |
| 195 | if (ret < 0) |
| 196 | return ret; |
| 197 | } |
| 198 | |
Matthias Kaehlcke | 03b7612 | 2007-07-30 14:58:10 -0300 | [diff] [blame] | 199 | if (mutex_lock_interruptible (&events->mtx)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 200 | return -ERESTARTSYS; |
| 201 | |
| 202 | memcpy (event, &events->events[events->eventr], |
| 203 | sizeof(struct dvb_frontend_event)); |
| 204 | |
| 205 | events->eventr = (events->eventr + 1) % MAX_EVENT; |
| 206 | |
Matthias Kaehlcke | 03b7612 | 2007-07-30 14:58:10 -0300 | [diff] [blame] | 207 | mutex_unlock(&events->mtx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 208 | |
| 209 | return 0; |
| 210 | } |
| 211 | |
| 212 | static void dvb_frontend_init(struct dvb_frontend *fe) |
| 213 | { |
| 214 | dprintk ("DVB: initialising frontend %i (%s)...\n", |
| 215 | fe->dvb->num, |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 216 | fe->ops.info.name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 217 | |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 218 | if (fe->ops.init) |
| 219 | fe->ops.init(fe); |
| 220 | if (fe->ops.tuner_ops.init) { |
| 221 | fe->ops.tuner_ops.init(fe); |
| 222 | if (fe->ops.i2c_gate_ctrl) |
| 223 | fe->ops.i2c_gate_ctrl(fe, 0); |
Andrew de Quincey | 7eef5dd | 2006-04-18 17:47:09 -0300 | [diff] [blame] | 224 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 225 | } |
| 226 | |
Andrew de Quincey | 86f40cc | 2006-03-30 15:53:35 -0300 | [diff] [blame] | 227 | void dvb_frontend_reinitialise(struct dvb_frontend *fe) |
| 228 | { |
| 229 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
| 230 | |
| 231 | fepriv->reinitialise = 1; |
| 232 | dvb_frontend_wakeup(fe); |
| 233 | } |
| 234 | EXPORT_SYMBOL(dvb_frontend_reinitialise); |
| 235 | |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 236 | 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] | 237 | { |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 238 | int q2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 239 | |
Harvey Harrison | 46b4f7c | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 240 | dprintk ("%s\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 241 | |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 242 | if (locked) |
| 243 | (fepriv->quality) = (fepriv->quality * 220 + 36*256) / 256; |
| 244 | else |
| 245 | (fepriv->quality) = (fepriv->quality * 220 + 0) / 256; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 246 | |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 247 | q2 = fepriv->quality - 128; |
| 248 | q2 *= q2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 249 | |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 250 | fepriv->delay = fepriv->min_delay + q2 * HZ / (128*128); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 251 | } |
| 252 | |
| 253 | /** |
| 254 | * Performs automatic twiddling of frontend parameters. |
| 255 | * |
| 256 | * @param fe The frontend concerned. |
| 257 | * @param check_wrapped Checks if an iteration has completed. DO NOT SET ON THE FIRST ATTEMPT |
| 258 | * @returns Number of complete iterations that have been performed. |
| 259 | */ |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 260 | 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] | 261 | { |
| 262 | int autoinversion; |
| 263 | int ready = 0; |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 264 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 265 | int original_inversion = fepriv->parameters.inversion; |
| 266 | u32 original_frequency = fepriv->parameters.frequency; |
| 267 | |
| 268 | /* are we using autoinversion? */ |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 269 | autoinversion = ((!(fe->ops.info.caps & FE_CAN_INVERSION_AUTO)) && |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 270 | (fepriv->parameters.inversion == INVERSION_AUTO)); |
| 271 | |
| 272 | /* setup parameters correctly */ |
| 273 | while(!ready) { |
| 274 | /* calculate the lnb_drift */ |
| 275 | fepriv->lnb_drift = fepriv->auto_step * fepriv->step_size; |
| 276 | |
| 277 | /* wrap the auto_step if we've exceeded the maximum drift */ |
| 278 | if (fepriv->lnb_drift > fepriv->max_drift) { |
| 279 | fepriv->auto_step = 0; |
| 280 | fepriv->auto_sub_step = 0; |
| 281 | fepriv->lnb_drift = 0; |
| 282 | } |
| 283 | |
| 284 | /* perform inversion and +/- zigzag */ |
| 285 | switch(fepriv->auto_sub_step) { |
| 286 | case 0: |
| 287 | /* try with the current inversion and current drift setting */ |
| 288 | ready = 1; |
| 289 | break; |
| 290 | |
| 291 | case 1: |
| 292 | if (!autoinversion) break; |
| 293 | |
| 294 | fepriv->inversion = (fepriv->inversion == INVERSION_OFF) ? INVERSION_ON : INVERSION_OFF; |
| 295 | ready = 1; |
| 296 | break; |
| 297 | |
| 298 | case 2: |
| 299 | if (fepriv->lnb_drift == 0) break; |
| 300 | |
| 301 | fepriv->lnb_drift = -fepriv->lnb_drift; |
| 302 | ready = 1; |
| 303 | break; |
| 304 | |
| 305 | case 3: |
| 306 | if (fepriv->lnb_drift == 0) break; |
| 307 | if (!autoinversion) break; |
| 308 | |
| 309 | fepriv->inversion = (fepriv->inversion == INVERSION_OFF) ? INVERSION_ON : INVERSION_OFF; |
| 310 | fepriv->lnb_drift = -fepriv->lnb_drift; |
| 311 | ready = 1; |
| 312 | break; |
| 313 | |
| 314 | default: |
| 315 | fepriv->auto_step++; |
| 316 | fepriv->auto_sub_step = -1; /* it'll be incremented to 0 in a moment */ |
| 317 | break; |
| 318 | } |
| 319 | |
| 320 | if (!ready) fepriv->auto_sub_step++; |
| 321 | } |
| 322 | |
| 323 | /* if this attempt would hit where we started, indicate a complete |
| 324 | * iteration has occurred */ |
| 325 | if ((fepriv->auto_step == fepriv->started_auto_step) && |
| 326 | (fepriv->auto_sub_step == 0) && check_wrapped) { |
| 327 | return 1; |
| 328 | } |
| 329 | |
| 330 | dprintk("%s: drift:%i inversion:%i auto_step:%i " |
| 331 | "auto_sub_step:%i started_auto_step:%i\n", |
Harvey Harrison | 46b4f7c | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 332 | __func__, fepriv->lnb_drift, fepriv->inversion, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 333 | fepriv->auto_step, fepriv->auto_sub_step, fepriv->started_auto_step); |
| 334 | |
| 335 | /* set the frontend itself */ |
| 336 | fepriv->parameters.frequency += fepriv->lnb_drift; |
| 337 | if (autoinversion) |
| 338 | fepriv->parameters.inversion = fepriv->inversion; |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 339 | if (fe->ops.set_frontend) |
| 340 | fe->ops.set_frontend(fe, &fepriv->parameters); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 341 | |
| 342 | fepriv->parameters.frequency = original_frequency; |
| 343 | fepriv->parameters.inversion = original_inversion; |
| 344 | |
| 345 | fepriv->auto_sub_step++; |
| 346 | return 0; |
| 347 | } |
| 348 | |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 349 | static void dvb_frontend_swzigzag(struct dvb_frontend *fe) |
| 350 | { |
Andrew de Quincey | 30d9464 | 2006-11-16 22:12:40 -0300 | [diff] [blame] | 351 | fe_status_t s = 0; |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 352 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
| 353 | |
| 354 | /* if we've got no parameters, just keep idling */ |
| 355 | if (fepriv->state & FESTATE_IDLE) { |
| 356 | fepriv->delay = 3*HZ; |
| 357 | fepriv->quality = 0; |
| 358 | return; |
| 359 | } |
| 360 | |
| 361 | /* in SCAN mode, we just set the frontend when asked and leave it alone */ |
| 362 | if (fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT) { |
| 363 | if (fepriv->state & FESTATE_RETUNE) { |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 364 | if (fe->ops.set_frontend) |
| 365 | fe->ops.set_frontend(fe, &fepriv->parameters); |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 366 | fepriv->state = FESTATE_TUNED; |
| 367 | } |
| 368 | fepriv->delay = 3*HZ; |
| 369 | fepriv->quality = 0; |
| 370 | return; |
| 371 | } |
| 372 | |
| 373 | /* get the frontend status */ |
| 374 | if (fepriv->state & FESTATE_RETUNE) { |
| 375 | s = 0; |
| 376 | } else { |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 377 | if (fe->ops.read_status) |
| 378 | fe->ops.read_status(fe, &s); |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 379 | if (s != fepriv->status) { |
| 380 | dvb_frontend_add_event(fe, s); |
| 381 | fepriv->status = s; |
| 382 | } |
| 383 | } |
| 384 | |
| 385 | /* if we're not tuned, and we have a lock, move to the TUNED state */ |
| 386 | if ((fepriv->state & FESTATE_WAITFORLOCK) && (s & FE_HAS_LOCK)) { |
| 387 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); |
| 388 | fepriv->state = FESTATE_TUNED; |
| 389 | |
| 390 | /* if we're tuned, then we have determined the correct inversion */ |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 391 | if ((!(fe->ops.info.caps & FE_CAN_INVERSION_AUTO)) && |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 392 | (fepriv->parameters.inversion == INVERSION_AUTO)) { |
| 393 | fepriv->parameters.inversion = fepriv->inversion; |
| 394 | } |
| 395 | return; |
| 396 | } |
| 397 | |
| 398 | /* if we are tuned already, check we're still locked */ |
| 399 | if (fepriv->state & FESTATE_TUNED) { |
| 400 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); |
| 401 | |
| 402 | /* we're tuned, and the lock is still good... */ |
| 403 | if (s & FE_HAS_LOCK) { |
| 404 | return; |
| 405 | } else { /* if we _WERE_ tuned, but now don't have a lock */ |
| 406 | fepriv->state = FESTATE_ZIGZAG_FAST; |
| 407 | fepriv->started_auto_step = fepriv->auto_step; |
| 408 | fepriv->check_wrapped = 0; |
| 409 | } |
| 410 | } |
| 411 | |
| 412 | /* don't actually do anything if we're in the LOSTLOCK state, |
| 413 | * the frontend is set to FE_CAN_RECOVER, and the max_drift is 0 */ |
| 414 | if ((fepriv->state & FESTATE_LOSTLOCK) && |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 415 | (fe->ops.info.caps & FE_CAN_RECOVER) && (fepriv->max_drift == 0)) { |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 416 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); |
| 417 | return; |
| 418 | } |
| 419 | |
| 420 | /* don't do anything if we're in the DISEQC state, since this |
| 421 | * might be someone with a motorized dish controlled by DISEQC. |
| 422 | * If its actually a re-tune, there will be a SET_FRONTEND soon enough. */ |
| 423 | if (fepriv->state & FESTATE_DISEQC) { |
| 424 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); |
| 425 | return; |
| 426 | } |
| 427 | |
| 428 | /* if we're in the RETUNE state, set everything up for a brand |
| 429 | * new scan, keeping the current inversion setting, as the next |
| 430 | * tune is _very_ likely to require the same */ |
| 431 | if (fepriv->state & FESTATE_RETUNE) { |
| 432 | fepriv->lnb_drift = 0; |
| 433 | fepriv->auto_step = 0; |
| 434 | fepriv->auto_sub_step = 0; |
| 435 | fepriv->started_auto_step = 0; |
| 436 | fepriv->check_wrapped = 0; |
| 437 | } |
| 438 | |
| 439 | /* fast zigzag. */ |
| 440 | if ((fepriv->state & FESTATE_SEARCHING_FAST) || (fepriv->state & FESTATE_RETUNE)) { |
| 441 | fepriv->delay = fepriv->min_delay; |
| 442 | |
| 443 | /* peform a tune */ |
| 444 | if (dvb_frontend_swzigzag_autotune(fe, fepriv->check_wrapped)) { |
| 445 | /* OK, if we've run out of trials at the fast speed. |
| 446 | * Drop back to slow for the _next_ attempt */ |
| 447 | fepriv->state = FESTATE_SEARCHING_SLOW; |
| 448 | fepriv->started_auto_step = fepriv->auto_step; |
| 449 | return; |
| 450 | } |
| 451 | fepriv->check_wrapped = 1; |
| 452 | |
| 453 | /* if we've just retuned, enter the ZIGZAG_FAST state. |
| 454 | * This ensures we cannot return from an |
| 455 | * FE_SET_FRONTEND ioctl before the first frontend tune |
| 456 | * occurs */ |
| 457 | if (fepriv->state & FESTATE_RETUNE) { |
| 458 | fepriv->state = FESTATE_TUNING_FAST; |
| 459 | } |
| 460 | } |
| 461 | |
| 462 | /* slow zigzag */ |
| 463 | if (fepriv->state & FESTATE_SEARCHING_SLOW) { |
| 464 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); |
| 465 | |
| 466 | /* Note: don't bother checking for wrapping; we stay in this |
| 467 | * state until we get a lock */ |
| 468 | dvb_frontend_swzigzag_autotune(fe, 0); |
| 469 | } |
| 470 | } |
| 471 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 472 | static int dvb_frontend_is_exiting(struct dvb_frontend *fe) |
| 473 | { |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 474 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 475 | |
| 476 | if (fepriv->exit) |
| 477 | return 1; |
| 478 | |
| 479 | if (fepriv->dvbdev->writers == 1) |
Johannes Stezenbach | cc89c22 | 2005-06-23 22:02:39 -0700 | [diff] [blame] | 480 | if (time_after(jiffies, fepriv->release_jiffies + |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 481 | dvb_shutdown_timeout * HZ)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 482 | return 1; |
| 483 | |
| 484 | return 0; |
| 485 | } |
| 486 | |
| 487 | static int dvb_frontend_should_wakeup(struct dvb_frontend *fe) |
| 488 | { |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 489 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 490 | |
| 491 | if (fepriv->wakeup) { |
| 492 | fepriv->wakeup = 0; |
| 493 | return 1; |
| 494 | } |
| 495 | return dvb_frontend_is_exiting(fe); |
| 496 | } |
| 497 | |
| 498 | static void dvb_frontend_wakeup(struct dvb_frontend *fe) |
| 499 | { |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 500 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 501 | |
| 502 | fepriv->wakeup = 1; |
| 503 | wake_up_interruptible(&fepriv->wait_queue); |
| 504 | } |
| 505 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 506 | static int dvb_frontend_thread(void *data) |
| 507 | { |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 508 | struct dvb_frontend *fe = data; |
| 509 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 510 | unsigned long timeout; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 511 | fe_status_t s; |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 512 | struct dvb_frontend_parameters *params; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 513 | |
Harvey Harrison | 46b4f7c | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 514 | dprintk("%s\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 515 | |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 516 | fepriv->check_wrapped = 0; |
| 517 | fepriv->quality = 0; |
| 518 | fepriv->delay = 3*HZ; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 519 | fepriv->status = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 520 | fepriv->wakeup = 0; |
Andrew de Quincey | 04c56d0 | 2006-07-10 03:34:14 -0300 | [diff] [blame] | 521 | fepriv->reinitialise = 0; |
| 522 | |
| 523 | dvb_frontend_init(fe); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 524 | |
Rafael J. Wysocki | 8314418 | 2007-07-17 04:03:35 -0700 | [diff] [blame] | 525 | set_freezable(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 526 | while (1) { |
| 527 | up(&fepriv->sem); /* is locked when we enter the thread... */ |
akpm@linux-foundation.org | 6591691 | 2007-02-08 14:36:57 -0300 | [diff] [blame] | 528 | restart: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 529 | timeout = wait_event_interruptible_timeout(fepriv->wait_queue, |
Rafael J. Wysocki | e42837b | 2007-10-18 03:04:45 -0700 | [diff] [blame] | 530 | dvb_frontend_should_wakeup(fe) || kthread_should_stop() |
| 531 | || freezing(current), |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 532 | fepriv->delay); |
| 533 | |
| 534 | if (kthread_should_stop() || dvb_frontend_is_exiting(fe)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 535 | /* got signal or quitting */ |
| 536 | break; |
| 537 | } |
| 538 | |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 539 | if (try_to_freeze()) |
akpm@linux-foundation.org | 6591691 | 2007-02-08 14:36:57 -0300 | [diff] [blame] | 540 | goto restart; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 541 | |
| 542 | if (down_interruptible(&fepriv->sem)) |
| 543 | break; |
| 544 | |
Andrew de Quincey | 86f40cc | 2006-03-30 15:53:35 -0300 | [diff] [blame] | 545 | if (fepriv->reinitialise) { |
| 546 | dvb_frontend_init(fe); |
Andrew de Quincey | 6445401 | 2006-04-06 14:32:23 -0300 | [diff] [blame] | 547 | if (fepriv->tone != -1) { |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 548 | fe->ops.set_tone(fe, fepriv->tone); |
Andrew de Quincey | 6445401 | 2006-04-06 14:32:23 -0300 | [diff] [blame] | 549 | } |
| 550 | if (fepriv->voltage != -1) { |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 551 | fe->ops.set_voltage(fe, fepriv->voltage); |
Andrew de Quincey | 6445401 | 2006-04-06 14:32:23 -0300 | [diff] [blame] | 552 | } |
Andrew de Quincey | 86f40cc | 2006-03-30 15:53:35 -0300 | [diff] [blame] | 553 | fepriv->reinitialise = 0; |
| 554 | } |
| 555 | |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 556 | /* do an iteration of the tuning loop */ |
Manu Abraham | d772bd0 | 2006-06-24 11:18:58 -0300 | [diff] [blame] | 557 | if (fe->ops.get_frontend_algo) { |
| 558 | if (fe->ops.get_frontend_algo(fe) == FE_ALGO_HW) { |
| 559 | /* have we been asked to retune? */ |
| 560 | params = NULL; |
| 561 | if (fepriv->state & FESTATE_RETUNE) { |
| 562 | params = &fepriv->parameters; |
| 563 | fepriv->state = FESTATE_TUNED; |
| 564 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 565 | |
Manu Abraham | d772bd0 | 2006-06-24 11:18:58 -0300 | [diff] [blame] | 566 | fe->ops.tune(fe, params, fepriv->tune_mode_flags, &fepriv->delay, &s); |
| 567 | if (s != fepriv->status) { |
| 568 | dvb_frontend_add_event(fe, s); |
| 569 | fepriv->status = s; |
| 570 | } |
Manu Abraham | 70d9063 | 2006-06-29 22:05:23 -0300 | [diff] [blame] | 571 | } else |
| 572 | dvb_frontend_swzigzag(fe); |
Manu Abraham | 4a4edcc | 2006-06-25 05:46:26 -0300 | [diff] [blame] | 573 | } else |
| 574 | dvb_frontend_swzigzag(fe); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 575 | } |
| 576 | |
Oliver Endriss | 608f62d | 2007-08-25 13:17:53 -0300 | [diff] [blame] | 577 | if (dvb_powerdown_on_sleep) { |
| 578 | if (fe->ops.set_voltage) |
| 579 | fe->ops.set_voltage(fe, SEC_VOLTAGE_OFF); |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 580 | if (fe->ops.tuner_ops.sleep) { |
| 581 | fe->ops.tuner_ops.sleep(fe); |
| 582 | if (fe->ops.i2c_gate_ctrl) |
| 583 | fe->ops.i2c_gate_ctrl(fe, 0); |
Andrew de Quincey | 7eef5dd | 2006-04-18 17:47:09 -0300 | [diff] [blame] | 584 | } |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 585 | if (fe->ops.sleep) |
| 586 | fe->ops.sleep(fe); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 587 | } |
| 588 | |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 589 | fepriv->thread = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 590 | mb(); |
| 591 | |
| 592 | dvb_frontend_wakeup(fe); |
| 593 | return 0; |
| 594 | } |
| 595 | |
| 596 | static void dvb_frontend_stop(struct dvb_frontend *fe) |
| 597 | { |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 598 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 599 | |
Harvey Harrison | 46b4f7c | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 600 | dprintk ("%s\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 601 | |
| 602 | fepriv->exit = 1; |
| 603 | mb(); |
| 604 | |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 605 | if (!fepriv->thread) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 606 | return; |
| 607 | |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 608 | kthread_stop(fepriv->thread); |
Markus Rechberger | ca5be9c | 2007-04-14 10:18:58 -0300 | [diff] [blame] | 609 | |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 610 | init_MUTEX (&fepriv->sem); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 611 | fepriv->state = FESTATE_IDLE; |
| 612 | |
| 613 | /* paranoia check in case a signal arrived */ |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 614 | if (fepriv->thread) |
| 615 | printk("dvb_frontend_stop: warning: thread %p won't exit\n", |
| 616 | fepriv->thread); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 617 | } |
| 618 | |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 619 | s32 timeval_usec_diff(struct timeval lasttime, struct timeval curtime) |
| 620 | { |
| 621 | return ((curtime.tv_usec < lasttime.tv_usec) ? |
| 622 | 1000000 - lasttime.tv_usec + curtime.tv_usec : |
| 623 | curtime.tv_usec - lasttime.tv_usec); |
| 624 | } |
| 625 | EXPORT_SYMBOL(timeval_usec_diff); |
| 626 | |
| 627 | static inline void timeval_usec_add(struct timeval *curtime, u32 add_usec) |
| 628 | { |
| 629 | curtime->tv_usec += add_usec; |
| 630 | if (curtime->tv_usec >= 1000000) { |
| 631 | curtime->tv_usec -= 1000000; |
| 632 | curtime->tv_sec++; |
| 633 | } |
| 634 | } |
| 635 | |
| 636 | /* |
| 637 | * Sleep until gettimeofday() > waketime + add_usec |
| 638 | * This needs to be as precise as possible, but as the delay is |
| 639 | * usually between 2ms and 32ms, it is done using a scheduled msleep |
| 640 | * followed by usleep (normally a busy-wait loop) for the remainder |
| 641 | */ |
| 642 | void dvb_frontend_sleep_until(struct timeval *waketime, u32 add_usec) |
| 643 | { |
| 644 | struct timeval lasttime; |
| 645 | s32 delta, newdelta; |
| 646 | |
| 647 | timeval_usec_add(waketime, add_usec); |
| 648 | |
| 649 | do_gettimeofday(&lasttime); |
| 650 | delta = timeval_usec_diff(lasttime, *waketime); |
| 651 | if (delta > 2500) { |
| 652 | msleep((delta - 1500) / 1000); |
| 653 | do_gettimeofday(&lasttime); |
| 654 | newdelta = timeval_usec_diff(lasttime, *waketime); |
| 655 | delta = (newdelta > delta) ? 0 : newdelta; |
| 656 | } |
| 657 | if (delta > 0) |
| 658 | udelay(delta); |
| 659 | } |
| 660 | EXPORT_SYMBOL(dvb_frontend_sleep_until); |
| 661 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 662 | static int dvb_frontend_start(struct dvb_frontend *fe) |
| 663 | { |
| 664 | int ret; |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 665 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 666 | struct task_struct *fe_thread; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 667 | |
Harvey Harrison | 46b4f7c | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 668 | dprintk ("%s\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 669 | |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 670 | if (fepriv->thread) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 671 | if (!fepriv->exit) |
| 672 | return 0; |
| 673 | else |
| 674 | dvb_frontend_stop (fe); |
| 675 | } |
| 676 | |
| 677 | if (signal_pending(current)) |
| 678 | return -EINTR; |
| 679 | if (down_interruptible (&fepriv->sem)) |
| 680 | return -EINTR; |
| 681 | |
| 682 | fepriv->state = FESTATE_IDLE; |
| 683 | fepriv->exit = 0; |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 684 | fepriv->thread = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 685 | mb(); |
| 686 | |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 687 | fe_thread = kthread_run(dvb_frontend_thread, fe, |
| 688 | "kdvb-fe-%i", fe->dvb->num); |
| 689 | if (IS_ERR(fe_thread)) { |
| 690 | ret = PTR_ERR(fe_thread); |
| 691 | printk("dvb_frontend_start: failed to start kthread (%d)\n", ret); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 692 | up(&fepriv->sem); |
| 693 | return ret; |
| 694 | } |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 695 | fepriv->thread = fe_thread; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 696 | return 0; |
| 697 | } |
| 698 | |
Oliver Endriss | c471b33 | 2007-08-09 01:03:42 -0300 | [diff] [blame] | 699 | static void dvb_frontend_get_frequeny_limits(struct dvb_frontend *fe, |
| 700 | u32 *freq_min, u32 *freq_max) |
| 701 | { |
| 702 | *freq_min = max(fe->ops.info.frequency_min, fe->ops.tuner_ops.info.frequency_min); |
| 703 | |
| 704 | if (fe->ops.info.frequency_max == 0) |
| 705 | *freq_max = fe->ops.tuner_ops.info.frequency_max; |
| 706 | else if (fe->ops.tuner_ops.info.frequency_max == 0) |
| 707 | *freq_max = fe->ops.info.frequency_max; |
| 708 | else |
| 709 | *freq_max = min(fe->ops.info.frequency_max, fe->ops.tuner_ops.info.frequency_max); |
| 710 | |
| 711 | if (*freq_min == 0 || *freq_max == 0) |
| 712 | printk(KERN_WARNING "DVB: frontend %u frequency limits undefined - fix the driver\n", |
| 713 | fe->dvb->num); |
| 714 | } |
| 715 | |
Oliver Endriss | 1fab46f | 2007-07-23 21:00:36 -0300 | [diff] [blame] | 716 | static int dvb_frontend_check_parameters(struct dvb_frontend *fe, |
| 717 | struct dvb_frontend_parameters *parms) |
| 718 | { |
Oliver Endriss | c471b33 | 2007-08-09 01:03:42 -0300 | [diff] [blame] | 719 | u32 freq_min; |
| 720 | u32 freq_max; |
| 721 | |
Oliver Endriss | 1fab46f | 2007-07-23 21:00:36 -0300 | [diff] [blame] | 722 | /* range check: frequency */ |
Oliver Endriss | c471b33 | 2007-08-09 01:03:42 -0300 | [diff] [blame] | 723 | dvb_frontend_get_frequeny_limits(fe, &freq_min, &freq_max); |
| 724 | if ((freq_min && parms->frequency < freq_min) || |
| 725 | (freq_max && parms->frequency > freq_max)) { |
Oliver Endriss | 1fab46f | 2007-07-23 21:00:36 -0300 | [diff] [blame] | 726 | 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] | 727 | fe->dvb->num, parms->frequency, freq_min, freq_max); |
Oliver Endriss | 1fab46f | 2007-07-23 21:00:36 -0300 | [diff] [blame] | 728 | return -EINVAL; |
| 729 | } |
| 730 | |
| 731 | /* range check: symbol rate */ |
| 732 | if (fe->ops.info.type == FE_QPSK) { |
| 733 | if ((fe->ops.info.symbol_rate_min && |
| 734 | parms->u.qpsk.symbol_rate < fe->ops.info.symbol_rate_min) || |
| 735 | (fe->ops.info.symbol_rate_max && |
| 736 | parms->u.qpsk.symbol_rate > fe->ops.info.symbol_rate_max)) { |
| 737 | printk(KERN_WARNING "DVB: frontend %u symbol rate %u out of range (%u..%u)\n", |
| 738 | fe->dvb->num, parms->u.qpsk.symbol_rate, |
| 739 | fe->ops.info.symbol_rate_min, fe->ops.info.symbol_rate_max); |
| 740 | return -EINVAL; |
| 741 | } |
| 742 | |
| 743 | } else if (fe->ops.info.type == FE_QAM) { |
| 744 | if ((fe->ops.info.symbol_rate_min && |
| 745 | parms->u.qam.symbol_rate < fe->ops.info.symbol_rate_min) || |
| 746 | (fe->ops.info.symbol_rate_max && |
| 747 | parms->u.qam.symbol_rate > fe->ops.info.symbol_rate_max)) { |
| 748 | printk(KERN_WARNING "DVB: frontend %u symbol rate %u out of range (%u..%u)\n", |
| 749 | fe->dvb->num, parms->u.qam.symbol_rate, |
| 750 | fe->ops.info.symbol_rate_min, fe->ops.info.symbol_rate_max); |
| 751 | return -EINVAL; |
| 752 | } |
| 753 | } |
| 754 | |
| 755 | return 0; |
| 756 | } |
| 757 | |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 758 | struct dtv_cmds_h dtv_cmds[] = { |
| 759 | [DTV_SEQ_UNDEFINED] = { |
| 760 | .name = "DTV_SEQ_UNDEFINED", |
| 761 | .cmd = DTV_SEQ_UNDEFINED, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 762 | .set = 1, |
| 763 | }, |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 764 | [DTV_SEQ_START] = { |
| 765 | .name = "DTV_SEQ_START", |
| 766 | .cmd = DTV_SEQ_START, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 767 | .set = 1, |
| 768 | }, |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 769 | [DTV_SEQ_CONTINUE] = { |
| 770 | .name = "DTV_SEQ_CONTINUE", |
| 771 | .cmd = DTV_SEQ_CONTINUE, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 772 | .set = 1, |
| 773 | }, |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 774 | [DTV_SEQ_COMPLETE] = { |
| 775 | .name = "DTV_SEQ_COMPLETE", |
| 776 | .cmd = DTV_SEQ_COMPLETE, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 777 | .set = 1, |
| 778 | }, |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 779 | [DTV_SEQ_TERMINATE] = { |
| 780 | .name = "DTV_SEQ_TERMINATE", |
| 781 | .cmd = DTV_SEQ_TERMINATE, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 782 | .set = 1, |
| 783 | }, |
| 784 | |
| 785 | /* Set */ |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 786 | [DTV_SET_FREQUENCY] = { |
| 787 | .name = "DTV_SET_FREQUENCY", |
| 788 | .cmd = DTV_SET_FREQUENCY, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 789 | .set = 1, |
| 790 | }, |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 791 | [DTV_SET_BANDWIDTH] = { |
| 792 | .name = "DTV_SET_BANDWIDTH", |
| 793 | .cmd = DTV_SET_BANDWIDTH, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 794 | .set = 1, |
| 795 | }, |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 796 | [DTV_SET_MODULATION] = { |
| 797 | .name = "DTV_SET_MODULATION", |
| 798 | .cmd = DTV_SET_MODULATION, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 799 | .set = 1, |
| 800 | }, |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 801 | [DTV_SET_INVERSION] = { |
| 802 | .name = "DTV_SET_INVERSION", |
| 803 | .cmd = DTV_SET_INVERSION, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 804 | .set = 1, |
| 805 | }, |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 806 | [DTV_SET_DISEQC_MASTER] = { |
| 807 | .name = "DTV_SET_DISEQC_MASTER", |
| 808 | .cmd = DTV_SET_DISEQC_MASTER, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 809 | .set = 1, |
| 810 | .buffer = 1, |
| 811 | }, |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 812 | [DTV_SET_SYMBOLRATE] = { |
| 813 | .name = "DTV_SET_SYMBOLRATE", |
| 814 | .cmd = DTV_SET_SYMBOLRATE, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 815 | .set = 1, |
| 816 | }, |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 817 | [DTV_SET_INNERFEC] = { |
| 818 | .name = "DTV_SET_INNERFEC", |
| 819 | .cmd = DTV_SET_INNERFEC, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 820 | .set = 1, |
| 821 | }, |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 822 | [DTV_SET_VOLTAGE] = { |
| 823 | .name = "DTV_SET_VOLTAGE", |
| 824 | .cmd = DTV_SET_VOLTAGE, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 825 | .set = 1, |
| 826 | }, |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 827 | [DTV_SET_TONE] = { |
| 828 | .name = "DTV_SET_TONE", |
| 829 | .cmd = DTV_SET_TONE, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 830 | .set = 1, |
| 831 | }, |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 832 | [DTV_SET_PILOT] = { |
| 833 | .name = "DTV_SET_PILOT", |
| 834 | .cmd = DTV_SET_PILOT, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 835 | .set = 1, |
| 836 | }, |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 837 | [DTV_SET_ROLLOFF] = { |
| 838 | .name = "DTV_SET_ROLLOFF", |
| 839 | .cmd = DTV_SET_ROLLOFF, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 840 | .set = 1, |
| 841 | }, |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 842 | [DTV_SET_DELIVERY_SYSTEM] = { |
| 843 | .name = "DTV_SET_DELIVERY_SYSTEM", |
| 844 | .cmd = DTV_SET_DELIVERY_SYSTEM, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 845 | .set = 1, |
| 846 | }, |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 847 | [DTV_SET_ISDB_SEGMENT_NUM] = { |
| 848 | .name = "DTV_SET_ISDB_SEGMENT_NUM", |
| 849 | .cmd = DTV_SET_ISDB_SEGMENT_NUM, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 850 | .set = 1, |
| 851 | }, |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 852 | [DTV_SET_ISDB_SEGMENT_WIDTH] = { |
| 853 | .name = "DTV_SET_ISDB_SEGMENT_WIDTH", |
| 854 | .cmd = DTV_SET_ISDB_SEGMENT_WIDTH, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 855 | .set = 1, |
| 856 | }, |
| 857 | |
| 858 | /* Get */ |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 859 | [DTV_GET_FREQUENCY] = { |
| 860 | .name = "DTV_GET_FREQUENCY", |
| 861 | .cmd = DTV_GET_FREQUENCY, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 862 | .set = 0, |
| 863 | }, |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 864 | [DTV_GET_BANDWIDTH] = { |
| 865 | .name = "DTV_GET_BANDWIDTH", |
| 866 | .cmd = DTV_GET_BANDWIDTH, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 867 | .set = 0, |
| 868 | }, |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 869 | [DTV_GET_MODULATION] = { |
| 870 | .name = "DTV_GET_MODULATION", |
| 871 | .cmd = DTV_GET_MODULATION, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 872 | .set = 0, |
| 873 | }, |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 874 | [DTV_GET_INVERSION] = { |
| 875 | .name = "DTV_GET_INVERSION", |
| 876 | .cmd = DTV_GET_INVERSION, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 877 | .set = 0, |
| 878 | }, |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 879 | [DTV_GET_DISEQC_SLAVE_REPLY] = { |
| 880 | .name = "DTV_GET_DISEQC_SLAVE_REPLY", |
| 881 | .cmd = DTV_GET_DISEQC_SLAVE_REPLY, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 882 | .set = 0, |
| 883 | .buffer = 1, |
| 884 | }, |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 885 | [DTV_GET_SYMBOLRATE] = { |
| 886 | .name = "DTV_GET_SYMBOLRATE", |
| 887 | .cmd = DTV_GET_SYMBOLRATE, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 888 | .set = 0, |
| 889 | }, |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 890 | [DTV_GET_INNERFEC] = { |
| 891 | .name = "DTV_GET_INNERFEC", |
| 892 | .cmd = DTV_GET_INNERFEC, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 893 | .set = 0, |
| 894 | }, |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 895 | [DTV_GET_VOLTAGE] = { |
| 896 | .name = "DTV_GET_VOLTAGE", |
| 897 | .cmd = DTV_GET_VOLTAGE, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 898 | .set = 0, |
| 899 | }, |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 900 | [DTV_GET_TONE] = { |
| 901 | .name = "DTV_GET_TONE", |
| 902 | .cmd = DTV_GET_TONE, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 903 | .set = 0, |
| 904 | }, |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 905 | [DTV_GET_PILOT] = { |
| 906 | .name = "DTV_GET_PILOT", |
| 907 | .cmd = DTV_GET_PILOT, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 908 | .set = 0, |
| 909 | }, |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 910 | [DTV_GET_ROLLOFF] = { |
| 911 | .name = "DTV_GET_ROLLOFF", |
| 912 | .cmd = DTV_GET_ROLLOFF, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 913 | .set = 0, |
| 914 | }, |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 915 | [DTV_GET_DELIVERY_SYSTEM] = { |
| 916 | .name = "DTV_GET_DELIVERY_SYSTEM", |
| 917 | .cmd = DTV_GET_DELIVERY_SYSTEM, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 918 | .set = 0, |
| 919 | }, |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 920 | [DTV_GET_ISDB_SEGMENT_NUM] = { |
| 921 | .name = "DTV_GET_ISDB_SEGMENT_NUM", |
| 922 | .cmd = DTV_GET_ISDB_SEGMENT_NUM, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 923 | .set = 0, |
| 924 | }, |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 925 | [DTV_GET_ISDB_SEGMENT_WIDTH] = { |
| 926 | .name = "DTV_GET_ISDB_SEGMENT_WIDTH", |
| 927 | .cmd = DTV_GET_ISDB_SEGMENT_WIDTH, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 928 | .set = 0, |
| 929 | }, |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 930 | [DTV_GET_ISDB_LAYERA_FEC] = { |
| 931 | .name = "DTV_GET_ISDB_LAYERA_FEC", |
| 932 | .cmd = DTV_GET_ISDB_LAYERA_FEC, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 933 | .set = 0, |
| 934 | }, |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 935 | [DTV_GET_ISDB_LAYERA_MODULATION] = { |
| 936 | .name = "DTV_GET_ISDB_LAYERA_MODULATION", |
| 937 | .cmd = DTV_GET_ISDB_LAYERA_MODULATION, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 938 | .set = 0, |
| 939 | }, |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 940 | [DTV_GET_ISDB_LAYERA_SEGMENT_WIDTH] = { |
| 941 | .name = "DTV_GET_ISDB_LAYERA_SEGMENT_WIDTH", |
| 942 | .cmd = DTV_GET_ISDB_LAYERA_SEGMENT_WIDTH, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 943 | .set = 0, |
| 944 | }, |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 945 | [DTV_GET_ISDB_LAYERB_FEC] = { |
| 946 | .name = "DTV_GET_ISDB_LAYERB_FEC", |
| 947 | .cmd = DTV_GET_ISDB_LAYERB_FEC, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 948 | .set = 0, |
| 949 | }, |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 950 | [DTV_GET_ISDB_LAYERB_MODULATION] = { |
| 951 | .name = "DTV_GET_ISDB_LAYERB_MODULATION", |
| 952 | .cmd = DTV_GET_ISDB_LAYERB_MODULATION, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 953 | .set = 0, |
| 954 | }, |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 955 | [DTV_GET_ISDB_LAYERB_SEGMENT_WIDTH] = { |
| 956 | .name = "DTV_GET_ISDB_LAYERB_SEGMENT_WIDTH", |
| 957 | .cmd = DTV_GET_ISDB_LAYERB_SEGMENT_WIDTH, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 958 | .set = 0, |
| 959 | }, |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 960 | [DTV_GET_ISDB_LAYERC_FEC] = { |
| 961 | .name = "DTV_GET_ISDB_LAYERC_FEC", |
| 962 | .cmd = DTV_GET_ISDB_LAYERC_FEC, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 963 | .set = 0, |
| 964 | }, |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 965 | [DTV_GET_ISDB_LAYERC_MODULATION] = { |
| 966 | .name = "DTV_GET_ISDB_LAYERC_MODULATION", |
| 967 | .cmd = DTV_GET_ISDB_LAYERC_MODULATION, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 968 | .set = 0, |
| 969 | }, |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 970 | [DTV_GET_ISDB_LAYERC_SEGMENT_WIDTH] = { |
| 971 | .name = "DTV_GET_ISDB_LAYERC_SEGMENT_WIDTH", |
| 972 | .cmd = DTV_GET_ISDB_LAYERC_SEGMENT_WIDTH, |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 973 | .set = 0, |
| 974 | }, |
| 975 | }; |
| 976 | |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 977 | void dtv_property_dump(dtv_property_t *tvp) |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 978 | { |
| 979 | int i; |
| 980 | |
| 981 | printk("%s() tvp.cmd = 0x%08x (%s)\n" |
| 982 | ,__FUNCTION__ |
| 983 | ,tvp->cmd |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 984 | ,dtv_cmds[ tvp->cmd ].name); |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 985 | |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 986 | if(dtv_cmds[ tvp->cmd ].buffer) { |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 987 | |
| 988 | printk("%s() tvp.u.buffer.len = 0x%02x\n" |
| 989 | ,__FUNCTION__ |
| 990 | ,tvp->u.buffer.len); |
| 991 | |
| 992 | for(i = 0; i < tvp->u.buffer.len; i++) |
| 993 | printk("%s() tvp.u.buffer.data[0x%02x] = 0x%02x\n" |
| 994 | ,__FUNCTION__ |
| 995 | ,i |
| 996 | ,tvp->u.buffer.data[i]); |
| 997 | |
| 998 | } else |
| 999 | printk("%s() tvp.u.data = 0x%08x\n", __FUNCTION__, tvp->u.data); |
| 1000 | } |
| 1001 | |
| 1002 | int is_legacy_delivery_system(fe_delivery_system_t s) |
| 1003 | { |
| 1004 | if((s == SYS_UNDEFINED) || (s == SYS_DVBC_ANNEX_AC) || |
| 1005 | (s == SYS_DVBC_ANNEX_B) || (s == SYS_DVBT) || (s == SYS_DVBS)) |
| 1006 | return 1; |
| 1007 | |
| 1008 | return 0; |
| 1009 | } |
| 1010 | |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1011 | int dtv_property_cache_submit(struct dvb_frontend *fe) |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1012 | { |
| 1013 | |
| 1014 | /* We have to do one of two things: |
| 1015 | * To support legacy devices using the new API we take values from |
| 1016 | * the tv_cache and generate a legacy truning structure. |
| 1017 | * |
| 1018 | * Or, |
| 1019 | * |
| 1020 | * To support advanced tuning devices with the new API we |
| 1021 | * notify the new advance driver type that a tuning operation is required |
| 1022 | * and let it pull values from the cache as is, we don't need to |
| 1023 | * pass structures. |
| 1024 | * |
| 1025 | * We'll use the modulation type to assess how this is handled. as the API |
| 1026 | * progresses we'll probably want to have a flag in dvb_frontend_ops |
| 1027 | * to allow the frontend driver to dictate how it likes to be tuned. |
| 1028 | * |
| 1029 | * Because of how this is attached to the ioctl handler for legacy support, |
| 1030 | * it's important to return an appropriate result code with atleast the following |
| 1031 | * three meanings: |
| 1032 | * < 0 = processing error |
| 1033 | * 0 = lecagy ioctl handler to submit a traditional set_frontend() call. |
| 1034 | * 1 = lecagy ioctl handler should NOT submit a traditional set_frontend() call. |
| 1035 | */ |
| 1036 | |
| 1037 | int r; |
| 1038 | |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1039 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1040 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
| 1041 | struct dvb_frontend_parameters p; |
| 1042 | |
| 1043 | printk("%s()\n", __FUNCTION__); |
| 1044 | |
| 1045 | /* For legacy delivery systems we don't need the delivery_system to be specified */ |
| 1046 | if(is_legacy_delivery_system(c->delivery_system)) { |
| 1047 | switch(c->modulation) { |
| 1048 | case QPSK: |
| 1049 | printk("%s() Preparing QPSK req\n", __FUNCTION__); |
| 1050 | p.frequency = c->frequency; |
| 1051 | p.inversion = c->inversion; |
| 1052 | p.u.qpsk.symbol_rate = c->symbol_rate; |
| 1053 | p.u.qpsk.fec_inner = c->fec_inner; |
| 1054 | memcpy(&fepriv->parameters, &p, |
| 1055 | sizeof (struct dvb_frontend_parameters)); |
| 1056 | |
| 1057 | /* Call the traditional tuning mechanisms. */ |
| 1058 | |
| 1059 | r = 0; |
| 1060 | break; |
| 1061 | case QAM_16: |
| 1062 | case QAM_32: |
| 1063 | case QAM_64: |
| 1064 | case QAM_128: |
| 1065 | case QAM_256: |
| 1066 | case QAM_AUTO: |
| 1067 | printk("%s() Preparing QAM req\n", __FUNCTION__); |
| 1068 | p.frequency = c->frequency; |
| 1069 | p.inversion = c->inversion; |
| 1070 | p.u.qam.symbol_rate = c->symbol_rate; |
| 1071 | p.u.vsb.modulation = c->modulation; |
| 1072 | printk("%s() frequency = %d\n", __FUNCTION__, p.frequency); |
| 1073 | printk("%s() QAM = %d\n", __FUNCTION__, p.u.vsb.modulation); |
| 1074 | memcpy(&fepriv->parameters, &p, |
| 1075 | sizeof (struct dvb_frontend_parameters)); |
| 1076 | |
| 1077 | /* At this point we're fully formed for backwards |
| 1078 | * compatability and we need to return this |
| 1079 | * via the ioctl handler as SET_FRONTEND (arg). |
| 1080 | * We've already patched the new values into the |
| 1081 | * frontends tuning structures so the ioctl code just |
| 1082 | * continues as if a legacy tune structure was passed |
| 1083 | * from userspace. |
| 1084 | */ |
| 1085 | |
| 1086 | r = 0; |
| 1087 | break; |
| 1088 | case VSB_8: |
| 1089 | case VSB_16: |
| 1090 | printk("%s() Preparing VSB req\n", __FUNCTION__); |
| 1091 | p.frequency = c->frequency; |
| 1092 | p.u.vsb.modulation = c->modulation; |
| 1093 | memcpy(&fepriv->parameters, &p, |
| 1094 | sizeof (struct dvb_frontend_parameters)); |
| 1095 | |
| 1096 | /* Call the traditional tuning mechanisms. */ |
| 1097 | |
| 1098 | r = 0; |
| 1099 | break; |
| 1100 | /* TODO: Add any missing modulation types */ |
| 1101 | default: |
| 1102 | r = -1; |
| 1103 | } |
| 1104 | } else { |
| 1105 | /* For advanced delivery systems / modulation types ... |
| 1106 | * we seed the lecacy dvb_frontend_parameters structure |
| 1107 | * so that the sanity checking code later in the IOCTL processing |
| 1108 | * can validate our basic frequency ranges, symbolrates, modulation |
| 1109 | * etc. |
| 1110 | */ |
| 1111 | r = -1; |
| 1112 | |
| 1113 | switch(c->modulation) { |
| 1114 | case _8PSK: |
| 1115 | case _16APSK: |
| 1116 | case NBC_QPSK: |
| 1117 | /* Just post a notification to the demod driver and let it pull |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1118 | * the specific values it wants from its dtv_property_cache. |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1119 | * It can decide how best to use those parameters. |
| 1120 | * IOCTL will call set_frontend (by default) due to zigzag |
| 1121 | * support etc. |
| 1122 | */ |
| 1123 | if (fe->ops.set_params) |
| 1124 | r = fe->ops.set_params(fe); |
| 1125 | |
| 1126 | p.frequency = c->frequency; |
| 1127 | p.inversion = c->inversion; |
| 1128 | p.u.qpsk.symbol_rate = c->symbol_rate; |
| 1129 | p.u.qpsk.fec_inner = c->fec_inner; |
| 1130 | memcpy(&fepriv->parameters, &p, |
| 1131 | sizeof (struct dvb_frontend_parameters)); |
| 1132 | |
| 1133 | r = 0; |
| 1134 | break; |
| 1135 | default: |
| 1136 | r = -1; |
| 1137 | } |
| 1138 | |
| 1139 | if(c->delivery_system == SYS_ISDBT) { |
| 1140 | /* Fake out a generic DVB-T request so we pass validation in the ioctl */ |
| 1141 | p.frequency = c->frequency; |
| 1142 | p.inversion = INVERSION_AUTO; |
| 1143 | p.u.ofdm.constellation = QAM_AUTO; |
| 1144 | p.u.ofdm.code_rate_HP = FEC_AUTO; |
| 1145 | p.u.ofdm.code_rate_LP = FEC_AUTO; |
| 1146 | p.u.ofdm.bandwidth = BANDWIDTH_AUTO; |
| 1147 | p.u.ofdm.transmission_mode = TRANSMISSION_MODE_AUTO; |
| 1148 | p.u.ofdm.guard_interval = GUARD_INTERVAL_AUTO; |
| 1149 | p.u.ofdm.hierarchy_information = HIERARCHY_AUTO; |
| 1150 | memcpy(&fepriv->parameters, &p, |
| 1151 | sizeof (struct dvb_frontend_parameters)); |
| 1152 | |
| 1153 | r = 0; |
| 1154 | } |
| 1155 | } |
| 1156 | return r; |
| 1157 | } |
| 1158 | |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1159 | static int dvb_frontend_ioctl_legacy(struct inode *inode, struct file *file, |
| 1160 | unsigned int cmd, void *parg); |
| 1161 | static int dvb_frontend_ioctl_properties(struct inode *inode, struct file *file, |
| 1162 | unsigned int cmd, void *parg); |
| 1163 | |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1164 | int dtv_property_process(struct dvb_frontend *fe, dtv_property_t *tvp, |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1165 | struct inode *inode, struct file *file) |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1166 | { |
| 1167 | int r = 0; |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1168 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1169 | printk("%s()\n", __FUNCTION__); |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1170 | dtv_property_dump(tvp); |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1171 | |
| 1172 | switch(tvp->cmd) { |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1173 | case DTV_SEQ_START: |
| 1174 | case DTV_SEQ_TERMINATE: |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1175 | /* Reset a cache of data specific to the frontend here. This does |
| 1176 | * not effect hardware. |
| 1177 | */ |
| 1178 | printk("%s() Flushing property cache\n", __FUNCTION__); |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1179 | memset(&fe->dtv_property_cache, 0, sizeof(struct dtv_frontend_properties)); |
| 1180 | fe->dtv_property_cache.state = DTV_SEQ_START; |
| 1181 | fe->dtv_property_cache.delivery_system = SYS_UNDEFINED; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1182 | break; |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1183 | case DTV_SEQ_COMPLETE: |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1184 | /* interpret the cache of data, build either a traditional frontend |
| 1185 | * tunerequest and submit it to a subset of the ioctl handler, |
| 1186 | * or, call a new undefined method on the frontend to deal with |
| 1187 | * all new tune requests. |
| 1188 | */ |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1189 | fe->dtv_property_cache.state = DTV_SEQ_COMPLETE; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1190 | printk("%s() Finalised property cache\n", __FUNCTION__); |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1191 | r |= dtv_property_cache_submit(fe); |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1192 | r |= dvb_frontend_ioctl_legacy(inode, file, FE_SET_FRONTEND, |
| 1193 | &fepriv->parameters); |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1194 | break; |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1195 | case DTV_SET_FREQUENCY: |
| 1196 | fe->dtv_property_cache.frequency = tvp->u.data; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1197 | break; |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1198 | case DTV_GET_FREQUENCY: |
| 1199 | tvp->u.data = fe->dtv_property_cache.frequency; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1200 | break; |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1201 | case DTV_SET_MODULATION: |
| 1202 | fe->dtv_property_cache.modulation = tvp->u.data; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1203 | break; |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1204 | case DTV_GET_MODULATION: |
| 1205 | tvp->u.data = fe->dtv_property_cache.modulation; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1206 | break; |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1207 | case DTV_SET_BANDWIDTH: |
| 1208 | fe->dtv_property_cache.bandwidth = tvp->u.data; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1209 | break; |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1210 | case DTV_GET_BANDWIDTH: |
| 1211 | tvp->u.data = fe->dtv_property_cache.bandwidth; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1212 | break; |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1213 | case DTV_SET_INVERSION: |
| 1214 | fe->dtv_property_cache.inversion = tvp->u.data; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1215 | break; |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1216 | case DTV_GET_INVERSION: |
| 1217 | tvp->u.data = fe->dtv_property_cache.inversion; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1218 | break; |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1219 | case DTV_SET_SYMBOLRATE: |
| 1220 | fe->dtv_property_cache.symbol_rate = tvp->u.data; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1221 | break; |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1222 | case DTV_GET_SYMBOLRATE: |
| 1223 | tvp->u.data = fe->dtv_property_cache.symbol_rate; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1224 | break; |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1225 | case DTV_SET_INNERFEC: |
| 1226 | fe->dtv_property_cache.fec_inner = tvp->u.data; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1227 | break; |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1228 | case DTV_GET_INNERFEC: |
| 1229 | tvp->u.data = fe->dtv_property_cache.fec_inner; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1230 | break; |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1231 | case DTV_SET_PILOT: |
| 1232 | fe->dtv_property_cache.pilot = tvp->u.data; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1233 | break; |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1234 | case DTV_GET_PILOT: |
| 1235 | tvp->u.data = fe->dtv_property_cache.pilot; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1236 | break; |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1237 | case DTV_SET_ROLLOFF: |
| 1238 | fe->dtv_property_cache.rolloff = tvp->u.data; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1239 | break; |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1240 | case DTV_GET_ROLLOFF: |
| 1241 | tvp->u.data = fe->dtv_property_cache.rolloff; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1242 | break; |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1243 | case DTV_SET_DELIVERY_SYSTEM: |
| 1244 | fe->dtv_property_cache.delivery_system = tvp->u.data; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1245 | break; |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1246 | case DTV_GET_DELIVERY_SYSTEM: |
| 1247 | tvp->u.data = fe->dtv_property_cache.delivery_system; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1248 | break; |
| 1249 | |
| 1250 | /* ISDB-T Support here */ |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1251 | case DTV_SET_ISDB_SEGMENT_NUM: |
| 1252 | fe->dtv_property_cache.isdb_segment_num = tvp->u.data; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1253 | break; |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1254 | case DTV_GET_ISDB_SEGMENT_NUM: |
| 1255 | tvp->u.data = fe->dtv_property_cache.isdb_segment_num; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1256 | break; |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1257 | case DTV_SET_ISDB_SEGMENT_WIDTH: |
| 1258 | fe->dtv_property_cache.isdb_segment_width = tvp->u.data; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1259 | break; |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1260 | case DTV_GET_ISDB_SEGMENT_WIDTH: |
| 1261 | tvp->u.data = fe->dtv_property_cache.isdb_segment_width; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1262 | break; |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1263 | case DTV_GET_ISDB_LAYERA_FEC: |
| 1264 | tvp->u.data = fe->dtv_property_cache.isdb_layera_fec; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1265 | break; |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1266 | case DTV_GET_ISDB_LAYERA_MODULATION: |
| 1267 | tvp->u.data = fe->dtv_property_cache.isdb_layera_modulation; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1268 | break; |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1269 | case DTV_GET_ISDB_LAYERA_SEGMENT_WIDTH: |
| 1270 | tvp->u.data = fe->dtv_property_cache.isdb_layera_segment_width; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1271 | break; |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1272 | case DTV_GET_ISDB_LAYERB_FEC: |
| 1273 | tvp->u.data = fe->dtv_property_cache.isdb_layerb_fec; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1274 | break; |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1275 | case DTV_GET_ISDB_LAYERB_MODULATION: |
| 1276 | tvp->u.data = fe->dtv_property_cache.isdb_layerb_modulation; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1277 | break; |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1278 | case DTV_GET_ISDB_LAYERB_SEGMENT_WIDTH: |
| 1279 | tvp->u.data = fe->dtv_property_cache.isdb_layerb_segment_width; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1280 | break; |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1281 | case DTV_GET_ISDB_LAYERC_FEC: |
| 1282 | tvp->u.data = fe->dtv_property_cache.isdb_layerc_fec; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1283 | break; |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1284 | case DTV_GET_ISDB_LAYERC_MODULATION: |
| 1285 | tvp->u.data = fe->dtv_property_cache.isdb_layerc_modulation; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1286 | break; |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1287 | case DTV_GET_ISDB_LAYERC_SEGMENT_WIDTH: |
| 1288 | tvp->u.data = fe->dtv_property_cache.isdb_layerc_segment_width; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1289 | break; |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1290 | case DTV_SET_VOLTAGE: |
| 1291 | fe->dtv_property_cache.voltage = tvp->u.data; |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1292 | r = dvb_frontend_ioctl_legacy(inode, file, FE_SET_VOLTAGE, |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1293 | (void *)fe->dtv_property_cache.voltage); |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1294 | break; |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1295 | case DTV_GET_VOLTAGE: |
| 1296 | tvp->u.data = fe->dtv_property_cache.voltage; |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1297 | break; |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1298 | case DTV_SET_TONE: |
| 1299 | fe->dtv_property_cache.sectone = tvp->u.data; |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1300 | r = dvb_frontend_ioctl_legacy(inode, file, FE_SET_TONE, |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1301 | (void *)fe->dtv_property_cache.sectone); |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1302 | break; |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1303 | case DTV_GET_TONE: |
| 1304 | tvp->u.data = fe->dtv_property_cache.sectone; |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1305 | break; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1306 | } |
| 1307 | |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1308 | return r; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1309 | } |
| 1310 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1311 | static int dvb_frontend_ioctl(struct inode *inode, struct file *file, |
| 1312 | unsigned int cmd, void *parg) |
| 1313 | { |
| 1314 | struct dvb_device *dvbdev = file->private_data; |
| 1315 | struct dvb_frontend *fe = dvbdev->priv; |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 1316 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1317 | int err = -EOPNOTSUPP; |
| 1318 | |
Harvey Harrison | 46b4f7c | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 1319 | dprintk ("%s\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1320 | |
Adrian Bunk | 813ce47 | 2007-08-01 10:13:36 -0300 | [diff] [blame] | 1321 | if (fepriv->exit) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1322 | return -ENODEV; |
| 1323 | |
| 1324 | if ((file->f_flags & O_ACCMODE) == O_RDONLY && |
| 1325 | (_IOC_DIR(cmd) != _IOC_READ || cmd == FE_GET_EVENT || |
| 1326 | cmd == FE_DISEQC_RECV_SLAVE_REPLY)) |
| 1327 | return -EPERM; |
| 1328 | |
| 1329 | if (down_interruptible (&fepriv->sem)) |
| 1330 | return -ERESTARTSYS; |
| 1331 | |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1332 | if ((cmd == FE_SET_PROPERTY) || (cmd == FE_GET_PROPERTY)) |
| 1333 | err = dvb_frontend_ioctl_properties(inode, file, cmd, parg); |
| 1334 | else |
| 1335 | err = dvb_frontend_ioctl_legacy(inode, file, cmd, parg); |
| 1336 | |
| 1337 | up(&fepriv->sem); |
| 1338 | return err; |
| 1339 | } |
| 1340 | |
| 1341 | static int dvb_frontend_ioctl_properties(struct inode *inode, struct file *file, |
| 1342 | unsigned int cmd, void *parg) |
| 1343 | { |
| 1344 | struct dvb_device *dvbdev = file->private_data; |
| 1345 | struct dvb_frontend *fe = dvbdev->priv; |
| 1346 | int err = -EOPNOTSUPP; |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1347 | dtv_property_t *tvp; |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1348 | |
| 1349 | dprintk("%s\n", __func__); |
| 1350 | |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1351 | if(cmd == FE_SET_PROPERTY) { |
| 1352 | printk("%s() FE_SET_PROPERTY\n", __FUNCTION__); |
| 1353 | |
| 1354 | /* TODO: basic property validation here */ |
| 1355 | |
| 1356 | /* TODO: ioctl userdata out of range check here */ |
| 1357 | tvp = parg; |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1358 | while(tvp->cmd != DTV_SEQ_UNDEFINED) { |
| 1359 | dtv_property_process(fe, tvp, inode, file); |
| 1360 | if( (tvp->cmd == DTV_SEQ_TERMINATE) || (tvp->cmd == DTV_SEQ_COMPLETE) ) |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1361 | break; |
| 1362 | tvp++; |
| 1363 | } |
| 1364 | |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1365 | if(fe->dtv_property_cache.state == DTV_SEQ_COMPLETE) { |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1366 | printk("%s() Property cache is full, tuning\n", __FUNCTION__); |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1367 | } |
| 1368 | err = 0; |
| 1369 | } |
| 1370 | |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1371 | return err; |
| 1372 | } |
| 1373 | |
| 1374 | static int dvb_frontend_ioctl_legacy(struct inode *inode, struct file *file, |
| 1375 | unsigned int cmd, void *parg) |
| 1376 | { |
| 1377 | struct dvb_device *dvbdev = file->private_data; |
| 1378 | struct dvb_frontend *fe = dvbdev->priv; |
| 1379 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
| 1380 | int err = -EOPNOTSUPP; |
| 1381 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1382 | switch (cmd) { |
| 1383 | case FE_GET_INFO: { |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 1384 | struct dvb_frontend_info* info = parg; |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1385 | memcpy(info, &fe->ops.info, sizeof(struct dvb_frontend_info)); |
Oliver Endriss | c471b33 | 2007-08-09 01:03:42 -0300 | [diff] [blame] | 1386 | dvb_frontend_get_frequeny_limits(fe, &info->frequency_min, &info->frequency_max); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1387 | |
| 1388 | /* Force the CAN_INVERSION_AUTO bit on. If the frontend doesn't |
| 1389 | * do it, it is done for it. */ |
| 1390 | info->caps |= FE_CAN_INVERSION_AUTO; |
| 1391 | err = 0; |
| 1392 | break; |
| 1393 | } |
| 1394 | |
Peter Beutner | 6757ccc | 2005-07-07 17:57:36 -0700 | [diff] [blame] | 1395 | case FE_READ_STATUS: { |
| 1396 | fe_status_t* status = parg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1397 | |
Peter Beutner | 6757ccc | 2005-07-07 17:57:36 -0700 | [diff] [blame] | 1398 | /* if retune was requested but hasn't occured yet, prevent |
| 1399 | * that user get signal state from previous tuning */ |
| 1400 | if(fepriv->state == FESTATE_RETUNE) { |
| 1401 | err=0; |
| 1402 | *status = 0; |
| 1403 | break; |
| 1404 | } |
| 1405 | |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1406 | if (fe->ops.read_status) |
| 1407 | err = fe->ops.read_status(fe, status); |
Peter Beutner | 6757ccc | 2005-07-07 17:57:36 -0700 | [diff] [blame] | 1408 | break; |
| 1409 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1410 | case FE_READ_BER: |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1411 | if (fe->ops.read_ber) |
| 1412 | err = fe->ops.read_ber(fe, (__u32*) parg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1413 | break; |
| 1414 | |
| 1415 | case FE_READ_SIGNAL_STRENGTH: |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1416 | if (fe->ops.read_signal_strength) |
| 1417 | err = fe->ops.read_signal_strength(fe, (__u16*) parg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1418 | break; |
| 1419 | |
| 1420 | case FE_READ_SNR: |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1421 | if (fe->ops.read_snr) |
| 1422 | err = fe->ops.read_snr(fe, (__u16*) parg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1423 | break; |
| 1424 | |
| 1425 | case FE_READ_UNCORRECTED_BLOCKS: |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1426 | if (fe->ops.read_ucblocks) |
| 1427 | err = fe->ops.read_ucblocks(fe, (__u32*) parg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1428 | break; |
| 1429 | |
| 1430 | |
| 1431 | case FE_DISEQC_RESET_OVERLOAD: |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1432 | if (fe->ops.diseqc_reset_overload) { |
| 1433 | err = fe->ops.diseqc_reset_overload(fe); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1434 | fepriv->state = FESTATE_DISEQC; |
| 1435 | fepriv->status = 0; |
| 1436 | } |
| 1437 | break; |
| 1438 | |
| 1439 | case FE_DISEQC_SEND_MASTER_CMD: |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1440 | if (fe->ops.diseqc_send_master_cmd) { |
| 1441 | 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] | 1442 | fepriv->state = FESTATE_DISEQC; |
| 1443 | fepriv->status = 0; |
| 1444 | } |
| 1445 | break; |
| 1446 | |
| 1447 | case FE_DISEQC_SEND_BURST: |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1448 | if (fe->ops.diseqc_send_burst) { |
| 1449 | 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] | 1450 | fepriv->state = FESTATE_DISEQC; |
| 1451 | fepriv->status = 0; |
| 1452 | } |
| 1453 | break; |
| 1454 | |
| 1455 | case FE_SET_TONE: |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1456 | if (fe->ops.set_tone) { |
| 1457 | 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] | 1458 | fepriv->tone = (fe_sec_tone_mode_t) parg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1459 | fepriv->state = FESTATE_DISEQC; |
| 1460 | fepriv->status = 0; |
| 1461 | } |
| 1462 | break; |
| 1463 | |
| 1464 | case FE_SET_VOLTAGE: |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1465 | if (fe->ops.set_voltage) { |
| 1466 | err = fe->ops.set_voltage(fe, (fe_sec_voltage_t) parg); |
Andrew de Quincey | 6445401 | 2006-04-06 14:32:23 -0300 | [diff] [blame] | 1467 | fepriv->voltage = (fe_sec_voltage_t) parg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1468 | fepriv->state = FESTATE_DISEQC; |
| 1469 | fepriv->status = 0; |
| 1470 | } |
| 1471 | break; |
| 1472 | |
| 1473 | case FE_DISHNETWORK_SEND_LEGACY_CMD: |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1474 | if (fe->ops.dishnetwork_send_legacy_command) { |
| 1475 | err = fe->ops.dishnetwork_send_legacy_command(fe, (unsigned long) parg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1476 | fepriv->state = FESTATE_DISEQC; |
| 1477 | fepriv->status = 0; |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1478 | } else if (fe->ops.set_voltage) { |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 1479 | /* |
| 1480 | * NOTE: This is a fallback condition. Some frontends |
| 1481 | * (stv0299 for instance) take longer than 8msec to |
| 1482 | * respond to a set_voltage command. Those switches |
| 1483 | * need custom routines to switch properly. For all |
| 1484 | * other frontends, the following shoule work ok. |
| 1485 | * Dish network legacy switches (as used by Dish500) |
| 1486 | * are controlled by sending 9-bit command words |
| 1487 | * spaced 8msec apart. |
| 1488 | * the actual command word is switch/port dependant |
| 1489 | * so it is up to the userspace application to send |
| 1490 | * the right command. |
| 1491 | * The command must always start with a '0' after |
| 1492 | * initialization, so parg is 8 bits and does not |
| 1493 | * include the initialization or start bit |
| 1494 | */ |
Hans Verkuil | c6eb8ea | 2008-09-03 17:11:54 -0300 | [diff] [blame] | 1495 | unsigned long swcmd = ((unsigned long) parg) << 1; |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 1496 | struct timeval nexttime; |
| 1497 | struct timeval tv[10]; |
| 1498 | int i; |
| 1499 | u8 last = 1; |
| 1500 | if (dvb_frontend_debug) |
Hans Verkuil | c6eb8ea | 2008-09-03 17:11:54 -0300 | [diff] [blame] | 1501 | printk("%s switch command: 0x%04lx\n", __func__, swcmd); |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 1502 | do_gettimeofday(&nexttime); |
| 1503 | if (dvb_frontend_debug) |
| 1504 | memcpy(&tv[0], &nexttime, sizeof(struct timeval)); |
| 1505 | /* before sending a command, initialize by sending |
| 1506 | * a 32ms 18V to the switch |
| 1507 | */ |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1508 | fe->ops.set_voltage(fe, SEC_VOLTAGE_18); |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 1509 | dvb_frontend_sleep_until(&nexttime, 32000); |
| 1510 | |
| 1511 | for (i = 0; i < 9; i++) { |
| 1512 | if (dvb_frontend_debug) |
| 1513 | do_gettimeofday(&tv[i + 1]); |
Hans Verkuil | c6eb8ea | 2008-09-03 17:11:54 -0300 | [diff] [blame] | 1514 | if ((swcmd & 0x01) != last) { |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 1515 | /* set voltage to (last ? 13V : 18V) */ |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1516 | fe->ops.set_voltage(fe, (last) ? SEC_VOLTAGE_13 : SEC_VOLTAGE_18); |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 1517 | last = (last) ? 0 : 1; |
| 1518 | } |
Hans Verkuil | c6eb8ea | 2008-09-03 17:11:54 -0300 | [diff] [blame] | 1519 | swcmd = swcmd >> 1; |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 1520 | if (i != 8) |
| 1521 | dvb_frontend_sleep_until(&nexttime, 8000); |
| 1522 | } |
| 1523 | if (dvb_frontend_debug) { |
| 1524 | 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] | 1525 | __func__, fe->dvb->num); |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 1526 | for (i = 1; i < 10; i++) |
| 1527 | printk("%d: %d\n", i, timeval_usec_diff(tv[i-1] , tv[i])); |
| 1528 | } |
| 1529 | err = 0; |
| 1530 | fepriv->state = FESTATE_DISEQC; |
| 1531 | fepriv->status = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1532 | } |
| 1533 | break; |
| 1534 | |
| 1535 | case FE_DISEQC_RECV_SLAVE_REPLY: |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1536 | if (fe->ops.diseqc_recv_slave_reply) |
| 1537 | 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] | 1538 | break; |
| 1539 | |
| 1540 | case FE_ENABLE_HIGH_LNB_VOLTAGE: |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1541 | if (fe->ops.enable_high_lnb_voltage) |
| 1542 | err = fe->ops.enable_high_lnb_voltage(fe, (long) parg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1543 | break; |
| 1544 | |
| 1545 | case FE_SET_FRONTEND: { |
| 1546 | struct dvb_frontend_tune_settings fetunesettings; |
| 1547 | |
Steven Toth | 56f0680 | 2008-09-11 10:19:27 -0300 | [diff] [blame^] | 1548 | if(fe->dtv_property_cache.state == DTV_SEQ_COMPLETE) { |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1549 | if (dvb_frontend_check_parameters(fe, &fepriv->parameters) < 0) { |
| 1550 | err = -EINVAL; |
| 1551 | break; |
| 1552 | } |
| 1553 | } else { |
| 1554 | if (dvb_frontend_check_parameters(fe, parg) < 0) { |
| 1555 | err = -EINVAL; |
| 1556 | break; |
| 1557 | } |
Oliver Endriss | 1fab46f | 2007-07-23 21:00:36 -0300 | [diff] [blame] | 1558 | |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1559 | memcpy (&fepriv->parameters, parg, |
| 1560 | sizeof (struct dvb_frontend_parameters)); |
| 1561 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1562 | |
| 1563 | memset(&fetunesettings, 0, sizeof(struct dvb_frontend_tune_settings)); |
| 1564 | memcpy(&fetunesettings.parameters, parg, |
| 1565 | sizeof (struct dvb_frontend_parameters)); |
| 1566 | |
| 1567 | /* force auto frequency inversion if requested */ |
| 1568 | if (dvb_force_auto_inversion) { |
| 1569 | fepriv->parameters.inversion = INVERSION_AUTO; |
| 1570 | fetunesettings.parameters.inversion = INVERSION_AUTO; |
| 1571 | } |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1572 | if (fe->ops.info.type == FE_OFDM) { |
Uwe Kleine-König | 1b3c371 | 2007-02-17 19:23:03 +0100 | [diff] [blame] | 1573 | /* without hierarchical coding code_rate_LP is irrelevant, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1574 | * so we tolerate the otherwise invalid FEC_NONE setting */ |
| 1575 | if (fepriv->parameters.u.ofdm.hierarchy_information == HIERARCHY_NONE && |
| 1576 | fepriv->parameters.u.ofdm.code_rate_LP == FEC_NONE) |
| 1577 | fepriv->parameters.u.ofdm.code_rate_LP = FEC_AUTO; |
| 1578 | } |
| 1579 | |
| 1580 | /* get frontend-specific tuning settings */ |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1581 | 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] | 1582 | fepriv->min_delay = (fetunesettings.min_delay_ms * HZ) / 1000; |
| 1583 | fepriv->max_drift = fetunesettings.max_drift; |
| 1584 | fepriv->step_size = fetunesettings.step_size; |
| 1585 | } else { |
| 1586 | /* default values */ |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1587 | switch(fe->ops.info.type) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1588 | case FE_QPSK: |
| 1589 | fepriv->min_delay = HZ/20; |
| 1590 | fepriv->step_size = fepriv->parameters.u.qpsk.symbol_rate / 16000; |
| 1591 | fepriv->max_drift = fepriv->parameters.u.qpsk.symbol_rate / 2000; |
| 1592 | break; |
| 1593 | |
| 1594 | case FE_QAM: |
| 1595 | fepriv->min_delay = HZ/20; |
| 1596 | fepriv->step_size = 0; /* no zigzag */ |
| 1597 | fepriv->max_drift = 0; |
| 1598 | break; |
| 1599 | |
| 1600 | case FE_OFDM: |
| 1601 | fepriv->min_delay = HZ/20; |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1602 | fepriv->step_size = fe->ops.info.frequency_stepsize * 2; |
| 1603 | fepriv->max_drift = (fe->ops.info.frequency_stepsize * 2) + 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1604 | break; |
| 1605 | case FE_ATSC: |
Manu Abraham | 4821fb1 | 2006-06-21 10:27:00 -0300 | [diff] [blame] | 1606 | fepriv->min_delay = HZ/20; |
| 1607 | fepriv->step_size = 0; |
| 1608 | fepriv->max_drift = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1609 | break; |
| 1610 | } |
| 1611 | } |
| 1612 | if (dvb_override_tune_delay > 0) |
| 1613 | fepriv->min_delay = (dvb_override_tune_delay * HZ) / 1000; |
| 1614 | |
| 1615 | fepriv->state = FESTATE_RETUNE; |
| 1616 | dvb_frontend_wakeup(fe); |
| 1617 | dvb_frontend_add_event(fe, 0); |
| 1618 | fepriv->status = 0; |
| 1619 | err = 0; |
| 1620 | break; |
| 1621 | } |
| 1622 | |
| 1623 | case FE_GET_EVENT: |
| 1624 | err = dvb_frontend_get_event (fe, parg, file->f_flags); |
| 1625 | break; |
| 1626 | |
| 1627 | case FE_GET_FRONTEND: |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1628 | if (fe->ops.get_frontend) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1629 | memcpy (parg, &fepriv->parameters, sizeof (struct dvb_frontend_parameters)); |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1630 | err = fe->ops.get_frontend(fe, (struct dvb_frontend_parameters*) parg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1631 | } |
| 1632 | break; |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 1633 | |
| 1634 | case FE_SET_FRONTEND_TUNE_MODE: |
Hans Verkuil | e18828e | 2006-01-09 15:25:28 -0200 | [diff] [blame] | 1635 | fepriv->tune_mode_flags = (unsigned long) parg; |
Trent Piepho | 1b172e0 | 2006-06-29 13:16:04 -0300 | [diff] [blame] | 1636 | err = 0; |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 1637 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1638 | }; |
| 1639 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1640 | return err; |
| 1641 | } |
| 1642 | |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1643 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1644 | static unsigned int dvb_frontend_poll(struct file *file, struct poll_table_struct *wait) |
| 1645 | { |
| 1646 | struct dvb_device *dvbdev = file->private_data; |
| 1647 | struct dvb_frontend *fe = dvbdev->priv; |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 1648 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1649 | |
Harvey Harrison | 46b4f7c | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 1650 | dprintk ("%s\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1651 | |
| 1652 | poll_wait (file, &fepriv->events.wait_queue, wait); |
| 1653 | |
| 1654 | if (fepriv->events.eventw != fepriv->events.eventr) |
| 1655 | return (POLLIN | POLLRDNORM | POLLPRI); |
| 1656 | |
| 1657 | return 0; |
| 1658 | } |
| 1659 | |
| 1660 | static int dvb_frontend_open(struct inode *inode, struct file *file) |
| 1661 | { |
| 1662 | struct dvb_device *dvbdev = file->private_data; |
| 1663 | struct dvb_frontend *fe = dvbdev->priv; |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 1664 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1665 | int ret; |
| 1666 | |
Harvey Harrison | 46b4f7c | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 1667 | dprintk ("%s\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1668 | |
Oliver Endriss | 48136e1 | 2007-08-25 12:00:23 -0300 | [diff] [blame] | 1669 | if (dvbdev->users == -1 && fe->ops.ts_bus_ctrl) { |
| 1670 | if ((ret = fe->ops.ts_bus_ctrl(fe, 1)) < 0) |
Steven Toth | ba7e6f3 | 2006-09-25 12:41:53 -0300 | [diff] [blame] | 1671 | return ret; |
Steven Toth | ba7e6f3 | 2006-09-25 12:41:53 -0300 | [diff] [blame] | 1672 | } |
| 1673 | |
Oliver Endriss | 48136e1 | 2007-08-25 12:00:23 -0300 | [diff] [blame] | 1674 | if ((ret = dvb_generic_open (inode, file)) < 0) |
| 1675 | goto err1; |
Andrew de Quincey | 04c56d0 | 2006-07-10 03:34:14 -0300 | [diff] [blame] | 1676 | |
Oliver Endriss | 48136e1 | 2007-08-25 12:00:23 -0300 | [diff] [blame] | 1677 | if ((file->f_flags & O_ACCMODE) != O_RDONLY) { |
Andrew de Quincey | 04c56d0 | 2006-07-10 03:34:14 -0300 | [diff] [blame] | 1678 | /* normal tune mode when opened R/W */ |
| 1679 | fepriv->tune_mode_flags &= ~FE_TUNE_MODE_ONESHOT; |
| 1680 | fepriv->tone = -1; |
| 1681 | fepriv->voltage = -1; |
| 1682 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1683 | ret = dvb_frontend_start (fe); |
| 1684 | if (ret) |
Oliver Endriss | 48136e1 | 2007-08-25 12:00:23 -0300 | [diff] [blame] | 1685 | goto err2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1686 | |
| 1687 | /* empty event queue */ |
| 1688 | fepriv->events.eventr = fepriv->events.eventw = 0; |
| 1689 | } |
| 1690 | |
| 1691 | return ret; |
Oliver Endriss | 48136e1 | 2007-08-25 12:00:23 -0300 | [diff] [blame] | 1692 | |
| 1693 | err2: |
| 1694 | dvb_generic_release(inode, file); |
| 1695 | err1: |
| 1696 | if (dvbdev->users == -1 && fe->ops.ts_bus_ctrl) |
| 1697 | fe->ops.ts_bus_ctrl(fe, 0); |
| 1698 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1699 | } |
| 1700 | |
| 1701 | static int dvb_frontend_release(struct inode *inode, struct file *file) |
| 1702 | { |
| 1703 | struct dvb_device *dvbdev = file->private_data; |
| 1704 | struct dvb_frontend *fe = dvbdev->priv; |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 1705 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Markus Rechberger | ca5be9c | 2007-04-14 10:18:58 -0300 | [diff] [blame] | 1706 | int ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1707 | |
Harvey Harrison | 46b4f7c | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 1708 | dprintk ("%s\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1709 | |
| 1710 | if ((file->f_flags & O_ACCMODE) != O_RDONLY) |
| 1711 | fepriv->release_jiffies = jiffies; |
| 1712 | |
Markus Rechberger | ca5be9c | 2007-04-14 10:18:58 -0300 | [diff] [blame] | 1713 | ret = dvb_generic_release (inode, file); |
| 1714 | |
Oliver Endriss | 48136e1 | 2007-08-25 12:00:23 -0300 | [diff] [blame] | 1715 | if (dvbdev->users == -1) { |
| 1716 | if (fepriv->exit == 1) { |
| 1717 | fops_put(file->f_op); |
| 1718 | file->f_op = NULL; |
| 1719 | wake_up(&dvbdev->wait_queue); |
| 1720 | } |
| 1721 | if (fe->ops.ts_bus_ctrl) |
| 1722 | fe->ops.ts_bus_ctrl(fe, 0); |
Markus Rechberger | ca5be9c | 2007-04-14 10:18:58 -0300 | [diff] [blame] | 1723 | } |
Oliver Endriss | 48136e1 | 2007-08-25 12:00:23 -0300 | [diff] [blame] | 1724 | |
Markus Rechberger | ca5be9c | 2007-04-14 10:18:58 -0300 | [diff] [blame] | 1725 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1726 | } |
| 1727 | |
| 1728 | static struct file_operations dvb_frontend_fops = { |
| 1729 | .owner = THIS_MODULE, |
| 1730 | .ioctl = dvb_generic_ioctl, |
| 1731 | .poll = dvb_frontend_poll, |
| 1732 | .open = dvb_frontend_open, |
| 1733 | .release = dvb_frontend_release |
| 1734 | }; |
| 1735 | |
| 1736 | int dvb_register_frontend(struct dvb_adapter* dvb, |
| 1737 | struct dvb_frontend* fe) |
| 1738 | { |
| 1739 | struct dvb_frontend_private *fepriv; |
| 1740 | static const struct dvb_device dvbdev_template = { |
| 1741 | .users = ~0, |
| 1742 | .writers = 1, |
| 1743 | .readers = (~0)-1, |
| 1744 | .fops = &dvb_frontend_fops, |
| 1745 | .kernel_ioctl = dvb_frontend_ioctl |
| 1746 | }; |
| 1747 | |
Harvey Harrison | 46b4f7c | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 1748 | dprintk ("%s\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1749 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 1750 | if (mutex_lock_interruptible(&frontend_mutex)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1751 | return -ERESTARTSYS; |
| 1752 | |
Panagiotis Issaris | 7408187 | 2006-01-11 19:40:56 -0200 | [diff] [blame] | 1753 | fe->frontend_priv = kzalloc(sizeof(struct dvb_frontend_private), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1754 | if (fe->frontend_priv == NULL) { |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 1755 | mutex_unlock(&frontend_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1756 | return -ENOMEM; |
| 1757 | } |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 1758 | fepriv = fe->frontend_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1759 | |
| 1760 | init_MUTEX (&fepriv->sem); |
| 1761 | init_waitqueue_head (&fepriv->wait_queue); |
| 1762 | init_waitqueue_head (&fepriv->events.wait_queue); |
Matthias Kaehlcke | 03b7612 | 2007-07-30 14:58:10 -0300 | [diff] [blame] | 1763 | mutex_init(&fepriv->events.mtx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1764 | fe->dvb = dvb; |
| 1765 | fepriv->inversion = INVERSION_OFF; |
| 1766 | |
| 1767 | printk ("DVB: registering frontend %i (%s)...\n", |
| 1768 | fe->dvb->num, |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 1769 | fe->ops.info.name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1770 | |
| 1771 | dvb_register_device (fe->dvb, &fepriv->dvbdev, &dvbdev_template, |
| 1772 | fe, DVB_DEVICE_FRONTEND); |
| 1773 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 1774 | mutex_unlock(&frontend_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1775 | return 0; |
| 1776 | } |
| 1777 | EXPORT_SYMBOL(dvb_register_frontend); |
| 1778 | |
| 1779 | int dvb_unregister_frontend(struct dvb_frontend* fe) |
| 1780 | { |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 1781 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Harvey Harrison | 46b4f7c | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 1782 | dprintk ("%s\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1783 | |
Markus Rechberger | 57861b4 | 2007-04-14 10:19:18 -0300 | [diff] [blame] | 1784 | mutex_lock(&frontend_mutex); |
Markus Rechberger | ca5be9c | 2007-04-14 10:18:58 -0300 | [diff] [blame] | 1785 | dvb_frontend_stop (fe); |
Markus Rechberger | 57861b4 | 2007-04-14 10:19:18 -0300 | [diff] [blame] | 1786 | mutex_unlock(&frontend_mutex); |
| 1787 | |
| 1788 | if (fepriv->dvbdev->users < -1) |
| 1789 | wait_event(fepriv->dvbdev->wait_queue, |
| 1790 | fepriv->dvbdev->users==-1); |
| 1791 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 1792 | mutex_lock(&frontend_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1793 | dvb_unregister_device (fepriv->dvbdev); |
Andrew de Quincey | d995506 | 2006-08-08 09:10:08 -0300 | [diff] [blame] | 1794 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1795 | /* fe is invalid now */ |
| 1796 | kfree(fepriv); |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 1797 | mutex_unlock(&frontend_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1798 | return 0; |
| 1799 | } |
| 1800 | EXPORT_SYMBOL(dvb_unregister_frontend); |
Andrew de Quincey | f52a838 | 2006-08-08 09:10:09 -0300 | [diff] [blame] | 1801 | |
Mauro Carvalho Chehab | 149ef72 | 2008-04-29 21:38:46 -0300 | [diff] [blame] | 1802 | #ifdef CONFIG_MEDIA_ATTACH |
Andrew de Quincey | f52a838 | 2006-08-08 09:10:09 -0300 | [diff] [blame] | 1803 | void dvb_frontend_detach(struct dvb_frontend* fe) |
| 1804 | { |
| 1805 | void *ptr; |
| 1806 | |
| 1807 | if (fe->ops.release_sec) { |
| 1808 | fe->ops.release_sec(fe); |
| 1809 | symbol_put_addr(fe->ops.release_sec); |
| 1810 | } |
| 1811 | if (fe->ops.tuner_ops.release) { |
| 1812 | fe->ops.tuner_ops.release(fe); |
| 1813 | symbol_put_addr(fe->ops.tuner_ops.release); |
| 1814 | } |
Michael Krufky | 2426a27 | 2007-12-21 11:34:45 -0300 | [diff] [blame] | 1815 | if (fe->ops.analog_ops.release) { |
| 1816 | fe->ops.analog_ops.release(fe); |
| 1817 | symbol_put_addr(fe->ops.analog_ops.release); |
| 1818 | } |
Andrew de Quincey | f52a838 | 2006-08-08 09:10:09 -0300 | [diff] [blame] | 1819 | ptr = (void*)fe->ops.release; |
| 1820 | if (ptr) { |
| 1821 | fe->ops.release(fe); |
| 1822 | symbol_put_addr(ptr); |
| 1823 | } |
| 1824 | } |
| 1825 | #else |
| 1826 | void dvb_frontend_detach(struct dvb_frontend* fe) |
| 1827 | { |
| 1828 | if (fe->ops.release_sec) |
| 1829 | fe->ops.release_sec(fe); |
| 1830 | if (fe->ops.tuner_ops.release) |
| 1831 | fe->ops.tuner_ops.release(fe); |
Michael Krufky | 2426a27 | 2007-12-21 11:34:45 -0300 | [diff] [blame] | 1832 | if (fe->ops.analog_ops.release) |
| 1833 | fe->ops.analog_ops.release(fe); |
Andrew de Quincey | f52a838 | 2006-08-08 09:10:09 -0300 | [diff] [blame] | 1834 | if (fe->ops.release) |
| 1835 | fe->ops.release(fe); |
| 1836 | } |
| 1837 | #endif |
| 1838 | EXPORT_SYMBOL(dvb_frontend_detach); |