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 | |
Mauro Carvalho Chehab | 8de8594 | 2011-12-26 20:22:50 -0300 | [diff] [blame] | 28 | /* Enables DVBv3 compatibility bits at the headers */ |
| 29 | #define __DVB_CORE__ |
| 30 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 31 | #include <linux/string.h> |
| 32 | #include <linux/kernel.h> |
| 33 | #include <linux/sched.h> |
| 34 | #include <linux/wait.h> |
| 35 | #include <linux/slab.h> |
| 36 | #include <linux/poll.h> |
Andrew Morton | 4c4cb1b | 2009-12-01 13:17:41 -0800 | [diff] [blame] | 37 | #include <linux/semaphore.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | #include <linux/module.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 39 | #include <linux/list.h> |
Nigel Cunningham | 7dfb710 | 2006-12-06 20:34:23 -0800 | [diff] [blame] | 40 | #include <linux/freezer.h> |
Johannes Stezenbach | cc89c22 | 2005-06-23 22:02:39 -0700 | [diff] [blame] | 41 | #include <linux/jiffies.h> |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 42 | #include <linux/kthread.h> |
Tina Ruchandani | 9056a23 | 2015-05-31 04:17:06 -0300 | [diff] [blame] | 43 | #include <linux/ktime.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | #include <asm/processor.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 45 | |
| 46 | #include "dvb_frontend.h" |
| 47 | #include "dvbdev.h" |
Steven Toth | eacf8d8 | 2008-09-26 00:29:49 -0300 | [diff] [blame] | 48 | #include <linux/dvb/version.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 49 | |
| 50 | static int dvb_frontend_debug; |
Oliver Endriss | 849be2c | 2007-08-25 12:22:16 -0300 | [diff] [blame] | 51 | static int dvb_shutdown_timeout; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 52 | static int dvb_force_auto_inversion; |
| 53 | static int dvb_override_tune_delay; |
| 54 | static int dvb_powerdown_on_sleep = 1; |
Darron Broad | 59b1842 | 2008-10-11 11:44:05 -0300 | [diff] [blame] | 55 | static int dvb_mfe_wait_time = 5; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 56 | |
| 57 | module_param_named(frontend_debug, dvb_frontend_debug, int, 0644); |
Johannes Stezenbach | f4f009a | 2005-05-16 21:54:21 -0700 | [diff] [blame] | 58 | 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] | 59 | module_param(dvb_shutdown_timeout, int, 0644); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 60 | 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] | 61 | module_param(dvb_force_auto_inversion, int, 0644); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 62 | 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] | 63 | module_param(dvb_override_tune_delay, int, 0644); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 64 | 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] | 65 | module_param(dvb_powerdown_on_sleep, int, 0644); |
Uwe Bugla | a8558577 | 2006-04-11 10:21:37 -0300 | [diff] [blame] | 66 | MODULE_PARM_DESC(dvb_powerdown_on_sleep, "0: do not power down, 1: turn LNB voltage off on sleep (default)"); |
Darron Broad | 59b1842 | 2008-10-11 11:44:05 -0300 | [diff] [blame] | 67 | module_param(dvb_mfe_wait_time, int, 0644); |
| 68 | MODULE_PARM_DESC(dvb_mfe_wait_time, "Wait up to <mfe_wait_time> seconds on open() for multi-frontend to become available (default:5 seconds)"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 69 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 70 | #define FESTATE_IDLE 1 |
| 71 | #define FESTATE_RETUNE 2 |
| 72 | #define FESTATE_TUNING_FAST 4 |
| 73 | #define FESTATE_TUNING_SLOW 8 |
| 74 | #define FESTATE_TUNED 16 |
| 75 | #define FESTATE_ZIGZAG_FAST 32 |
| 76 | #define FESTATE_ZIGZAG_SLOW 64 |
| 77 | #define FESTATE_DISEQC 128 |
Janne Grunau | 0188625 | 2009-09-01 19:23:09 -0300 | [diff] [blame] | 78 | #define FESTATE_ERROR 256 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 79 | #define FESTATE_WAITFORLOCK (FESTATE_TUNING_FAST | FESTATE_TUNING_SLOW | FESTATE_ZIGZAG_FAST | FESTATE_ZIGZAG_SLOW | FESTATE_DISEQC) |
| 80 | #define FESTATE_SEARCHING_FAST (FESTATE_TUNING_FAST | FESTATE_ZIGZAG_FAST) |
| 81 | #define FESTATE_SEARCHING_SLOW (FESTATE_TUNING_SLOW | FESTATE_ZIGZAG_SLOW) |
| 82 | #define FESTATE_LOSTLOCK (FESTATE_ZIGZAG_FAST | FESTATE_ZIGZAG_SLOW) |
Manu Abraham | 0249ef1 | 2006-06-21 10:27:31 -0300 | [diff] [blame] | 83 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 84 | /* |
| 85 | * FESTATE_IDLE. No tuning parameters have been supplied and the loop is idling. |
| 86 | * FESTATE_RETUNE. Parameters have been supplied, but we have not yet performed the first tune. |
| 87 | * FESTATE_TUNING_FAST. Tuning parameters have been supplied and fast zigzag scan is in progress. |
| 88 | * FESTATE_TUNING_SLOW. Tuning parameters have been supplied. Fast zigzag failed, so we're trying again, but slower. |
| 89 | * FESTATE_TUNED. The frontend has successfully locked on. |
| 90 | * FESTATE_ZIGZAG_FAST. The lock has been lost, and a fast zigzag has been initiated to try and regain it. |
| 91 | * FESTATE_ZIGZAG_SLOW. The lock has been lost. Fast zigzag has been failed, so we're trying again, but slower. |
| 92 | * FESTATE_DISEQC. A DISEQC command has just been issued. |
| 93 | * FESTATE_WAITFORLOCK. When we're waiting for a lock. |
| 94 | * FESTATE_SEARCHING_FAST. When we're searching for a signal using a fast zigzag scan. |
| 95 | * FESTATE_SEARCHING_SLOW. When we're searching for a signal using a slow zigzag scan. |
| 96 | * FESTATE_LOSTLOCK. When the lock has been lost, and we're searching it again. |
| 97 | */ |
| 98 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 99 | static DEFINE_MUTEX(frontend_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 100 | |
| 101 | struct dvb_frontend_private { |
Max Kellermann | fe35637 | 2016-07-04 09:08:51 -0300 | [diff] [blame] | 102 | struct kref refcount; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 103 | |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 104 | /* thread/frontend values */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 105 | struct dvb_device *dvbdev; |
Andreas Oberritter | a5959db | 2011-05-08 20:03:40 -0300 | [diff] [blame] | 106 | struct dvb_frontend_parameters parameters_out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 107 | struct dvb_fe_events events; |
| 108 | struct semaphore sem; |
| 109 | struct list_head list_head; |
| 110 | wait_queue_head_t wait_queue; |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 111 | struct task_struct *thread; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 112 | unsigned long release_jiffies; |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 113 | unsigned int wakeup; |
Mauro Carvalho Chehab | 0df289a | 2015-06-07 14:53:52 -0300 | [diff] [blame] | 114 | enum fe_status status; |
Peter Beutner | 400b708 | 2006-01-09 15:32:43 -0200 | [diff] [blame] | 115 | unsigned long tune_mode_flags; |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 116 | unsigned int delay; |
Andrew de Quincey | 86f40cc | 2006-03-30 15:53:35 -0300 | [diff] [blame] | 117 | unsigned int reinitialise; |
Andrew de Quincey | 6445401 | 2006-04-06 14:32:23 -0300 | [diff] [blame] | 118 | int tone; |
| 119 | int voltage; |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 120 | |
| 121 | /* swzigzag values */ |
| 122 | unsigned int state; |
| 123 | unsigned int bending; |
| 124 | int lnb_drift; |
| 125 | unsigned int inversion; |
| 126 | unsigned int auto_step; |
| 127 | unsigned int auto_sub_step; |
| 128 | unsigned int started_auto_step; |
| 129 | unsigned int min_delay; |
| 130 | unsigned int max_drift; |
| 131 | unsigned int step_size; |
| 132 | int quality; |
| 133 | unsigned int check_wrapped; |
Manu Abraham | c59e787 | 2008-10-14 16:34:07 -0300 | [diff] [blame] | 134 | enum dvbfe_search algo_status; |
Mauro Carvalho Chehab | 135f9be | 2015-01-06 17:53:15 -0300 | [diff] [blame] | 135 | |
| 136 | #if defined(CONFIG_MEDIA_CONTROLLER_DVB) |
| 137 | struct media_pipeline pipe; |
Mauro Carvalho Chehab | 135f9be | 2015-01-06 17:53:15 -0300 | [diff] [blame] | 138 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 139 | }; |
| 140 | |
Max Kellermann | fe35637 | 2016-07-04 09:08:51 -0300 | [diff] [blame] | 141 | static void dvb_frontend_private_free(struct kref *ref) |
| 142 | { |
| 143 | struct dvb_frontend_private *fepriv = |
| 144 | container_of(ref, struct dvb_frontend_private, refcount); |
| 145 | kfree(fepriv); |
| 146 | } |
| 147 | |
| 148 | static void dvb_frontend_private_put(struct dvb_frontend_private *fepriv) |
| 149 | { |
| 150 | kref_put(&fepriv->refcount, dvb_frontend_private_free); |
| 151 | } |
| 152 | |
| 153 | static void dvb_frontend_private_get(struct dvb_frontend_private *fepriv) |
| 154 | { |
| 155 | kref_get(&fepriv->refcount); |
| 156 | } |
| 157 | |
Andrew de Quincey | 86f40cc | 2006-03-30 15:53:35 -0300 | [diff] [blame] | 158 | static void dvb_frontend_wakeup(struct dvb_frontend *fe); |
Mauro Carvalho Chehab | a689e36 | 2011-12-22 14:47:48 -0300 | [diff] [blame] | 159 | static int dtv_get_frontend(struct dvb_frontend *fe, |
Mauro Carvalho Chehab | 2ea9a08 | 2016-02-04 09:45:14 -0200 | [diff] [blame] | 160 | struct dtv_frontend_properties *c, |
Mauro Carvalho Chehab | a689e36 | 2011-12-22 14:47:48 -0300 | [diff] [blame] | 161 | struct dvb_frontend_parameters *p_out); |
Mauro Carvalho Chehab | 2ea9a08 | 2016-02-04 09:45:14 -0200 | [diff] [blame] | 162 | static int |
| 163 | dtv_property_legacy_params_sync(struct dvb_frontend *fe, |
| 164 | const struct dtv_frontend_properties *c, |
| 165 | struct dvb_frontend_parameters *p); |
Mauro Carvalho Chehab | a689e36 | 2011-12-22 14:47:48 -0300 | [diff] [blame] | 166 | |
| 167 | static bool has_get_frontend(struct dvb_frontend *fe) |
| 168 | { |
Hans Petter Selasky | c065f5b | 2012-03-27 12:53:19 -0300 | [diff] [blame] | 169 | return fe->ops.get_frontend != NULL; |
Mauro Carvalho Chehab | a689e36 | 2011-12-22 14:47:48 -0300 | [diff] [blame] | 170 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 171 | |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 172 | /* |
| 173 | * Due to DVBv3 API calls, a delivery system should be mapped into one of |
| 174 | * the 4 DVBv3 delivery systems (FE_QPSK, FE_QAM, FE_OFDM or FE_ATSC), |
| 175 | * otherwise, a DVBv3 call will fail. |
| 176 | */ |
| 177 | enum dvbv3_emulation_type { |
| 178 | DVBV3_UNKNOWN, |
| 179 | DVBV3_QPSK, |
| 180 | DVBV3_QAM, |
| 181 | DVBV3_OFDM, |
| 182 | DVBV3_ATSC, |
| 183 | }; |
| 184 | |
| 185 | static enum dvbv3_emulation_type dvbv3_type(u32 delivery_system) |
| 186 | { |
| 187 | switch (delivery_system) { |
| 188 | case SYS_DVBC_ANNEX_A: |
| 189 | case SYS_DVBC_ANNEX_C: |
| 190 | return DVBV3_QAM; |
| 191 | case SYS_DVBS: |
| 192 | case SYS_DVBS2: |
| 193 | case SYS_TURBO: |
| 194 | case SYS_ISDBS: |
| 195 | case SYS_DSS: |
| 196 | return DVBV3_QPSK; |
| 197 | case SYS_DVBT: |
| 198 | case SYS_DVBT2: |
| 199 | case SYS_ISDBT: |
Antti Palosaari | 224b664 | 2012-08-12 22:33:21 -0300 | [diff] [blame] | 200 | case SYS_DTMB: |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 201 | return DVBV3_OFDM; |
| 202 | case SYS_ATSC: |
Michael Krufky | ca68948 | 2012-01-29 15:44:58 -0300 | [diff] [blame] | 203 | case SYS_ATSCMH: |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 204 | case SYS_DVBC_ANNEX_B: |
| 205 | return DVBV3_ATSC; |
| 206 | case SYS_UNDEFINED: |
| 207 | case SYS_ISDBC: |
| 208 | case SYS_DVBH: |
| 209 | case SYS_DAB: |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 210 | default: |
| 211 | /* |
| 212 | * Doesn't know how to emulate those types and/or |
| 213 | * there's no frontend driver from this type yet |
| 214 | * with some emulation code, so, we're not sure yet how |
| 215 | * to handle them, or they're not compatible with a DVBv3 call. |
| 216 | */ |
| 217 | return DVBV3_UNKNOWN; |
| 218 | } |
| 219 | } |
| 220 | |
Mauro Carvalho Chehab | 0df289a | 2015-06-07 14:53:52 -0300 | [diff] [blame] | 221 | static void dvb_frontend_add_event(struct dvb_frontend *fe, |
| 222 | enum fe_status status) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 223 | { |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 224 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Mauro Carvalho Chehab | 2ea9a08 | 2016-02-04 09:45:14 -0200 | [diff] [blame] | 225 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 226 | struct dvb_fe_events *events = &fepriv->events; |
| 227 | struct dvb_frontend_event *e; |
| 228 | int wp; |
| 229 | |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 230 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 231 | |
Mauro Carvalho Chehab | a689e36 | 2011-12-22 14:47:48 -0300 | [diff] [blame] | 232 | if ((status & FE_HAS_LOCK) && has_get_frontend(fe)) |
Mauro Carvalho Chehab | 2ea9a08 | 2016-02-04 09:45:14 -0200 | [diff] [blame] | 233 | dtv_get_frontend(fe, c, &fepriv->parameters_out); |
Andreas Oberritter | 77b1e2f | 2011-08-04 12:33:15 -0300 | [diff] [blame] | 234 | |
| 235 | mutex_lock(&events->mtx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 236 | |
| 237 | wp = (events->eventw + 1) % MAX_EVENT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 238 | if (wp == events->eventr) { |
| 239 | events->overflow = 1; |
| 240 | events->eventr = (events->eventr + 1) % MAX_EVENT; |
| 241 | } |
| 242 | |
| 243 | e = &events->events[events->eventw]; |
Andreas Oberritter | 77b1e2f | 2011-08-04 12:33:15 -0300 | [diff] [blame] | 244 | e->status = status; |
Andreas Oberritter | a5959db | 2011-05-08 20:03:40 -0300 | [diff] [blame] | 245 | e->parameters = fepriv->parameters_out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 246 | |
| 247 | events->eventw = wp; |
| 248 | |
Matthias Kaehlcke | 03b7612 | 2007-07-30 14:58:10 -0300 | [diff] [blame] | 249 | mutex_unlock(&events->mtx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 250 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 251 | wake_up_interruptible (&events->wait_queue); |
| 252 | } |
| 253 | |
| 254 | static int dvb_frontend_get_event(struct dvb_frontend *fe, |
| 255 | struct dvb_frontend_event *event, int flags) |
| 256 | { |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 257 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 258 | struct dvb_fe_events *events = &fepriv->events; |
| 259 | |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 260 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 261 | |
| 262 | if (events->overflow) { |
| 263 | events->overflow = 0; |
| 264 | return -EOVERFLOW; |
| 265 | } |
| 266 | |
| 267 | if (events->eventw == events->eventr) { |
| 268 | int ret; |
| 269 | |
| 270 | if (flags & O_NONBLOCK) |
| 271 | return -EWOULDBLOCK; |
| 272 | |
| 273 | up(&fepriv->sem); |
| 274 | |
| 275 | ret = wait_event_interruptible (events->wait_queue, |
| 276 | events->eventw != events->eventr); |
| 277 | |
| 278 | if (down_interruptible (&fepriv->sem)) |
| 279 | return -ERESTARTSYS; |
| 280 | |
| 281 | if (ret < 0) |
| 282 | return ret; |
| 283 | } |
| 284 | |
Andreas Oberritter | 77b1e2f | 2011-08-04 12:33:15 -0300 | [diff] [blame] | 285 | mutex_lock(&events->mtx); |
| 286 | *event = events->events[events->eventr]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 287 | events->eventr = (events->eventr + 1) % MAX_EVENT; |
Matthias Kaehlcke | 03b7612 | 2007-07-30 14:58:10 -0300 | [diff] [blame] | 288 | mutex_unlock(&events->mtx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 289 | |
| 290 | return 0; |
| 291 | } |
| 292 | |
Andreas Oberritter | 20640be | 2011-08-04 12:33:14 -0300 | [diff] [blame] | 293 | static void dvb_frontend_clear_events(struct dvb_frontend *fe) |
| 294 | { |
| 295 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
| 296 | struct dvb_fe_events *events = &fepriv->events; |
| 297 | |
| 298 | mutex_lock(&events->mtx); |
| 299 | events->eventr = events->eventw; |
| 300 | mutex_unlock(&events->mtx); |
| 301 | } |
| 302 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 303 | static void dvb_frontend_init(struct dvb_frontend *fe) |
| 304 | { |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 305 | dev_dbg(fe->dvb->device, |
| 306 | "%s: initialising adapter %i frontend %i (%s)...\n", |
| 307 | __func__, fe->dvb->num, fe->id, fe->ops.info.name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 308 | |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 309 | if (fe->ops.init) |
| 310 | fe->ops.init(fe); |
| 311 | if (fe->ops.tuner_ops.init) { |
Manu Abraham | 3b37a15 | 2008-10-20 18:14:14 -0300 | [diff] [blame] | 312 | if (fe->ops.i2c_gate_ctrl) |
| 313 | fe->ops.i2c_gate_ctrl(fe, 1); |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 314 | fe->ops.tuner_ops.init(fe); |
| 315 | if (fe->ops.i2c_gate_ctrl) |
| 316 | fe->ops.i2c_gate_ctrl(fe, 0); |
Andrew de Quincey | 7eef5dd | 2006-04-18 17:47:09 -0300 | [diff] [blame] | 317 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 318 | } |
| 319 | |
Andrew de Quincey | 86f40cc | 2006-03-30 15:53:35 -0300 | [diff] [blame] | 320 | void dvb_frontend_reinitialise(struct dvb_frontend *fe) |
| 321 | { |
| 322 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
| 323 | |
| 324 | fepriv->reinitialise = 1; |
| 325 | dvb_frontend_wakeup(fe); |
| 326 | } |
| 327 | EXPORT_SYMBOL(dvb_frontend_reinitialise); |
| 328 | |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 329 | 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] | 330 | { |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 331 | int q2; |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 332 | struct dvb_frontend *fe = fepriv->dvbdev->priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 333 | |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 334 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 335 | |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 336 | if (locked) |
| 337 | (fepriv->quality) = (fepriv->quality * 220 + 36*256) / 256; |
| 338 | else |
| 339 | (fepriv->quality) = (fepriv->quality * 220 + 0) / 256; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 340 | |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 341 | q2 = fepriv->quality - 128; |
| 342 | q2 *= q2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 343 | |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 344 | fepriv->delay = fepriv->min_delay + q2 * HZ / (128*128); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 345 | } |
| 346 | |
| 347 | /** |
| 348 | * Performs automatic twiddling of frontend parameters. |
| 349 | * |
| 350 | * @param fe The frontend concerned. |
| 351 | * @param check_wrapped Checks if an iteration has completed. DO NOT SET ON THE FIRST ATTEMPT |
| 352 | * @returns Number of complete iterations that have been performed. |
| 353 | */ |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 354 | 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] | 355 | { |
| 356 | int autoinversion; |
| 357 | int ready = 0; |
Janne Grunau | 0188625 | 2009-09-01 19:23:09 -0300 | [diff] [blame] | 358 | int fe_set_err = 0; |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 359 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Mauro Carvalho Chehab | ac3852c | 2011-12-30 09:30:25 -0300 | [diff] [blame] | 360 | struct dtv_frontend_properties *c = &fe->dtv_property_cache, tmp; |
| 361 | int original_inversion = c->inversion; |
| 362 | u32 original_frequency = c->frequency; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 363 | |
| 364 | /* are we using autoinversion? */ |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 365 | autoinversion = ((!(fe->ops.info.caps & FE_CAN_INVERSION_AUTO)) && |
Mauro Carvalho Chehab | ac3852c | 2011-12-30 09:30:25 -0300 | [diff] [blame] | 366 | (c->inversion == INVERSION_AUTO)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 367 | |
| 368 | /* setup parameters correctly */ |
| 369 | while(!ready) { |
| 370 | /* calculate the lnb_drift */ |
| 371 | fepriv->lnb_drift = fepriv->auto_step * fepriv->step_size; |
| 372 | |
| 373 | /* wrap the auto_step if we've exceeded the maximum drift */ |
| 374 | if (fepriv->lnb_drift > fepriv->max_drift) { |
| 375 | fepriv->auto_step = 0; |
| 376 | fepriv->auto_sub_step = 0; |
| 377 | fepriv->lnb_drift = 0; |
| 378 | } |
| 379 | |
| 380 | /* perform inversion and +/- zigzag */ |
| 381 | switch(fepriv->auto_sub_step) { |
| 382 | case 0: |
| 383 | /* try with the current inversion and current drift setting */ |
| 384 | ready = 1; |
| 385 | break; |
| 386 | |
| 387 | case 1: |
| 388 | if (!autoinversion) break; |
| 389 | |
| 390 | fepriv->inversion = (fepriv->inversion == INVERSION_OFF) ? INVERSION_ON : INVERSION_OFF; |
| 391 | ready = 1; |
| 392 | break; |
| 393 | |
| 394 | case 2: |
| 395 | if (fepriv->lnb_drift == 0) break; |
| 396 | |
| 397 | fepriv->lnb_drift = -fepriv->lnb_drift; |
| 398 | ready = 1; |
| 399 | break; |
| 400 | |
| 401 | case 3: |
| 402 | if (fepriv->lnb_drift == 0) break; |
| 403 | if (!autoinversion) break; |
| 404 | |
| 405 | fepriv->inversion = (fepriv->inversion == INVERSION_OFF) ? INVERSION_ON : INVERSION_OFF; |
| 406 | fepriv->lnb_drift = -fepriv->lnb_drift; |
| 407 | ready = 1; |
| 408 | break; |
| 409 | |
| 410 | default: |
| 411 | fepriv->auto_step++; |
| 412 | fepriv->auto_sub_step = -1; /* it'll be incremented to 0 in a moment */ |
| 413 | break; |
| 414 | } |
| 415 | |
| 416 | if (!ready) fepriv->auto_sub_step++; |
| 417 | } |
| 418 | |
| 419 | /* if this attempt would hit where we started, indicate a complete |
| 420 | * iteration has occurred */ |
| 421 | if ((fepriv->auto_step == fepriv->started_auto_step) && |
| 422 | (fepriv->auto_sub_step == 0) && check_wrapped) { |
| 423 | return 1; |
| 424 | } |
| 425 | |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 426 | dev_dbg(fe->dvb->device, "%s: drift:%i inversion:%i auto_step:%i " \ |
| 427 | "auto_sub_step:%i started_auto_step:%i\n", |
| 428 | __func__, fepriv->lnb_drift, fepriv->inversion, |
| 429 | fepriv->auto_step, fepriv->auto_sub_step, |
| 430 | fepriv->started_auto_step); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 431 | |
| 432 | /* set the frontend itself */ |
Mauro Carvalho Chehab | ac3852c | 2011-12-30 09:30:25 -0300 | [diff] [blame] | 433 | c->frequency += fepriv->lnb_drift; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 434 | if (autoinversion) |
Mauro Carvalho Chehab | ac3852c | 2011-12-30 09:30:25 -0300 | [diff] [blame] | 435 | c->inversion = fepriv->inversion; |
| 436 | tmp = *c; |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 437 | if (fe->ops.set_frontend) |
Mauro Carvalho Chehab | bc9cd27 | 2011-12-20 15:31:54 -0300 | [diff] [blame] | 438 | fe_set_err = fe->ops.set_frontend(fe); |
Mauro Carvalho Chehab | ac3852c | 2011-12-30 09:30:25 -0300 | [diff] [blame] | 439 | *c = tmp; |
Janne Grunau | 0188625 | 2009-09-01 19:23:09 -0300 | [diff] [blame] | 440 | if (fe_set_err < 0) { |
| 441 | fepriv->state = FESTATE_ERROR; |
| 442 | return fe_set_err; |
| 443 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 444 | |
Mauro Carvalho Chehab | ac3852c | 2011-12-30 09:30:25 -0300 | [diff] [blame] | 445 | c->frequency = original_frequency; |
| 446 | c->inversion = original_inversion; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 447 | |
| 448 | fepriv->auto_sub_step++; |
| 449 | return 0; |
| 450 | } |
| 451 | |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 452 | static void dvb_frontend_swzigzag(struct dvb_frontend *fe) |
| 453 | { |
Mauro Carvalho Chehab | 0df289a | 2015-06-07 14:53:52 -0300 | [diff] [blame] | 454 | enum fe_status s = 0; |
Janne Grunau | 0188625 | 2009-09-01 19:23:09 -0300 | [diff] [blame] | 455 | int retval = 0; |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 456 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Mauro Carvalho Chehab | ac3852c | 2011-12-30 09:30:25 -0300 | [diff] [blame] | 457 | struct dtv_frontend_properties *c = &fe->dtv_property_cache, tmp; |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 458 | |
| 459 | /* if we've got no parameters, just keep idling */ |
| 460 | if (fepriv->state & FESTATE_IDLE) { |
| 461 | fepriv->delay = 3*HZ; |
| 462 | fepriv->quality = 0; |
| 463 | return; |
| 464 | } |
| 465 | |
| 466 | /* in SCAN mode, we just set the frontend when asked and leave it alone */ |
| 467 | if (fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT) { |
| 468 | if (fepriv->state & FESTATE_RETUNE) { |
Mauro Carvalho Chehab | ac3852c | 2011-12-30 09:30:25 -0300 | [diff] [blame] | 469 | tmp = *c; |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 470 | if (fe->ops.set_frontend) |
Mauro Carvalho Chehab | bc9cd27 | 2011-12-20 15:31:54 -0300 | [diff] [blame] | 471 | retval = fe->ops.set_frontend(fe); |
Mauro Carvalho Chehab | ac3852c | 2011-12-30 09:30:25 -0300 | [diff] [blame] | 472 | *c = tmp; |
Janne Grunau | 0188625 | 2009-09-01 19:23:09 -0300 | [diff] [blame] | 473 | if (retval < 0) |
| 474 | fepriv->state = FESTATE_ERROR; |
| 475 | else |
| 476 | fepriv->state = FESTATE_TUNED; |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 477 | } |
| 478 | fepriv->delay = 3*HZ; |
| 479 | fepriv->quality = 0; |
| 480 | return; |
| 481 | } |
| 482 | |
| 483 | /* get the frontend status */ |
| 484 | if (fepriv->state & FESTATE_RETUNE) { |
| 485 | s = 0; |
| 486 | } else { |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 487 | if (fe->ops.read_status) |
| 488 | fe->ops.read_status(fe, &s); |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 489 | if (s != fepriv->status) { |
| 490 | dvb_frontend_add_event(fe, s); |
| 491 | fepriv->status = s; |
| 492 | } |
| 493 | } |
| 494 | |
| 495 | /* if we're not tuned, and we have a lock, move to the TUNED state */ |
| 496 | if ((fepriv->state & FESTATE_WAITFORLOCK) && (s & FE_HAS_LOCK)) { |
| 497 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); |
| 498 | fepriv->state = FESTATE_TUNED; |
| 499 | |
| 500 | /* if we're tuned, then we have determined the correct inversion */ |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 501 | if ((!(fe->ops.info.caps & FE_CAN_INVERSION_AUTO)) && |
Mauro Carvalho Chehab | ac3852c | 2011-12-30 09:30:25 -0300 | [diff] [blame] | 502 | (c->inversion == INVERSION_AUTO)) { |
| 503 | c->inversion = fepriv->inversion; |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 504 | } |
| 505 | return; |
| 506 | } |
| 507 | |
| 508 | /* if we are tuned already, check we're still locked */ |
| 509 | if (fepriv->state & FESTATE_TUNED) { |
| 510 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); |
| 511 | |
| 512 | /* we're tuned, and the lock is still good... */ |
| 513 | if (s & FE_HAS_LOCK) { |
| 514 | return; |
| 515 | } else { /* if we _WERE_ tuned, but now don't have a lock */ |
| 516 | fepriv->state = FESTATE_ZIGZAG_FAST; |
| 517 | fepriv->started_auto_step = fepriv->auto_step; |
| 518 | fepriv->check_wrapped = 0; |
| 519 | } |
| 520 | } |
| 521 | |
| 522 | /* don't actually do anything if we're in the LOSTLOCK state, |
| 523 | * the frontend is set to FE_CAN_RECOVER, and the max_drift is 0 */ |
| 524 | if ((fepriv->state & FESTATE_LOSTLOCK) && |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 525 | (fe->ops.info.caps & FE_CAN_RECOVER) && (fepriv->max_drift == 0)) { |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 526 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); |
| 527 | return; |
| 528 | } |
| 529 | |
| 530 | /* don't do anything if we're in the DISEQC state, since this |
| 531 | * might be someone with a motorized dish controlled by DISEQC. |
| 532 | * If its actually a re-tune, there will be a SET_FRONTEND soon enough. */ |
| 533 | if (fepriv->state & FESTATE_DISEQC) { |
| 534 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); |
| 535 | return; |
| 536 | } |
| 537 | |
| 538 | /* if we're in the RETUNE state, set everything up for a brand |
| 539 | * new scan, keeping the current inversion setting, as the next |
| 540 | * tune is _very_ likely to require the same */ |
| 541 | if (fepriv->state & FESTATE_RETUNE) { |
| 542 | fepriv->lnb_drift = 0; |
| 543 | fepriv->auto_step = 0; |
| 544 | fepriv->auto_sub_step = 0; |
| 545 | fepriv->started_auto_step = 0; |
| 546 | fepriv->check_wrapped = 0; |
| 547 | } |
| 548 | |
| 549 | /* fast zigzag. */ |
| 550 | if ((fepriv->state & FESTATE_SEARCHING_FAST) || (fepriv->state & FESTATE_RETUNE)) { |
| 551 | fepriv->delay = fepriv->min_delay; |
| 552 | |
Guillaume Audirac | 2030c03 | 2010-05-06 09:30:25 -0300 | [diff] [blame] | 553 | /* perform a tune */ |
Janne Grunau | 0188625 | 2009-09-01 19:23:09 -0300 | [diff] [blame] | 554 | retval = dvb_frontend_swzigzag_autotune(fe, |
| 555 | fepriv->check_wrapped); |
| 556 | if (retval < 0) { |
| 557 | return; |
| 558 | } else if (retval) { |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 559 | /* OK, if we've run out of trials at the fast speed. |
| 560 | * Drop back to slow for the _next_ attempt */ |
| 561 | fepriv->state = FESTATE_SEARCHING_SLOW; |
| 562 | fepriv->started_auto_step = fepriv->auto_step; |
| 563 | return; |
| 564 | } |
| 565 | fepriv->check_wrapped = 1; |
| 566 | |
| 567 | /* if we've just retuned, enter the ZIGZAG_FAST state. |
| 568 | * This ensures we cannot return from an |
| 569 | * FE_SET_FRONTEND ioctl before the first frontend tune |
| 570 | * occurs */ |
| 571 | if (fepriv->state & FESTATE_RETUNE) { |
| 572 | fepriv->state = FESTATE_TUNING_FAST; |
| 573 | } |
| 574 | } |
| 575 | |
| 576 | /* slow zigzag */ |
| 577 | if (fepriv->state & FESTATE_SEARCHING_SLOW) { |
| 578 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); |
| 579 | |
| 580 | /* Note: don't bother checking for wrapping; we stay in this |
| 581 | * state until we get a lock */ |
| 582 | dvb_frontend_swzigzag_autotune(fe, 0); |
| 583 | } |
| 584 | } |
| 585 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 586 | static int dvb_frontend_is_exiting(struct dvb_frontend *fe) |
| 587 | { |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 588 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 589 | |
Shuah Khan | 18ed286 | 2014-07-12 13:44:12 -0300 | [diff] [blame] | 590 | if (fe->exit != DVB_FE_NO_EXIT) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 591 | return 1; |
| 592 | |
| 593 | if (fepriv->dvbdev->writers == 1) |
Andreas Oberritter | b9d5efc | 2011-12-09 21:37:00 -0300 | [diff] [blame] | 594 | if (time_after_eq(jiffies, fepriv->release_jiffies + |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 595 | dvb_shutdown_timeout * HZ)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 596 | return 1; |
| 597 | |
| 598 | return 0; |
| 599 | } |
| 600 | |
| 601 | static int dvb_frontend_should_wakeup(struct dvb_frontend *fe) |
| 602 | { |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 603 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 604 | |
| 605 | if (fepriv->wakeup) { |
| 606 | fepriv->wakeup = 0; |
| 607 | return 1; |
| 608 | } |
| 609 | return dvb_frontend_is_exiting(fe); |
| 610 | } |
| 611 | |
| 612 | static void dvb_frontend_wakeup(struct dvb_frontend *fe) |
| 613 | { |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 614 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 615 | |
| 616 | fepriv->wakeup = 1; |
| 617 | wake_up_interruptible(&fepriv->wait_queue); |
| 618 | } |
| 619 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 620 | static int dvb_frontend_thread(void *data) |
| 621 | { |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 622 | struct dvb_frontend *fe = data; |
Mauro Carvalho Chehab | 2ea9a08 | 2016-02-04 09:45:14 -0200 | [diff] [blame] | 623 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 624 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Mauro Carvalho Chehab | 0df289a | 2015-06-07 14:53:52 -0300 | [diff] [blame] | 625 | enum fe_status s; |
Manu Abraham | c59e787 | 2008-10-14 16:34:07 -0300 | [diff] [blame] | 626 | enum dvbfe_algo algo; |
Mauro Carvalho Chehab | 7e07222 | 2011-12-26 17:48:33 -0300 | [diff] [blame] | 627 | bool re_tune = false; |
Juergen Lock | 6ae2322 | 2012-12-23 17:23:06 -0300 | [diff] [blame] | 628 | bool semheld = false; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 629 | |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 630 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 631 | |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 632 | fepriv->check_wrapped = 0; |
| 633 | fepriv->quality = 0; |
| 634 | fepriv->delay = 3*HZ; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 635 | fepriv->status = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 636 | fepriv->wakeup = 0; |
Andrew de Quincey | 04c56d0 | 2006-07-10 03:34:14 -0300 | [diff] [blame] | 637 | fepriv->reinitialise = 0; |
| 638 | |
| 639 | dvb_frontend_init(fe); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 640 | |
Rafael J. Wysocki | 8314418 | 2007-07-17 04:03:35 -0700 | [diff] [blame] | 641 | set_freezable(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 642 | while (1) { |
| 643 | up(&fepriv->sem); /* is locked when we enter the thread... */ |
akpm@linux-foundation.org | 6591691 | 2007-02-08 14:36:57 -0300 | [diff] [blame] | 644 | restart: |
Hans Verkuil | 94238e9 | 2011-08-27 11:30:25 -0300 | [diff] [blame] | 645 | wait_event_interruptible_timeout(fepriv->wait_queue, |
Rafael J. Wysocki | e42837b | 2007-10-18 03:04:45 -0700 | [diff] [blame] | 646 | dvb_frontend_should_wakeup(fe) || kthread_should_stop() |
| 647 | || freezing(current), |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 648 | fepriv->delay); |
| 649 | |
| 650 | if (kthread_should_stop() || dvb_frontend_is_exiting(fe)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 651 | /* got signal or quitting */ |
Juergen Lock | 6ae2322 | 2012-12-23 17:23:06 -0300 | [diff] [blame] | 652 | if (!down_interruptible(&fepriv->sem)) |
| 653 | semheld = true; |
Shuah Khan | 18ed286 | 2014-07-12 13:44:12 -0300 | [diff] [blame] | 654 | fe->exit = DVB_FE_NORMAL_EXIT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 655 | break; |
| 656 | } |
| 657 | |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 658 | if (try_to_freeze()) |
akpm@linux-foundation.org | 6591691 | 2007-02-08 14:36:57 -0300 | [diff] [blame] | 659 | goto restart; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 660 | |
| 661 | if (down_interruptible(&fepriv->sem)) |
| 662 | break; |
| 663 | |
Andrew de Quincey | 86f40cc | 2006-03-30 15:53:35 -0300 | [diff] [blame] | 664 | if (fepriv->reinitialise) { |
| 665 | dvb_frontend_init(fe); |
Andreas Oberritter | 42f4e77 | 2011-08-24 14:33:52 -0300 | [diff] [blame] | 666 | if (fe->ops.set_tone && fepriv->tone != -1) |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 667 | fe->ops.set_tone(fe, fepriv->tone); |
Andreas Oberritter | 42f4e77 | 2011-08-24 14:33:52 -0300 | [diff] [blame] | 668 | if (fe->ops.set_voltage && fepriv->voltage != -1) |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 669 | fe->ops.set_voltage(fe, fepriv->voltage); |
Andrew de Quincey | 86f40cc | 2006-03-30 15:53:35 -0300 | [diff] [blame] | 670 | fepriv->reinitialise = 0; |
| 671 | } |
| 672 | |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 673 | /* do an iteration of the tuning loop */ |
Manu Abraham | d772bd0 | 2006-06-24 11:18:58 -0300 | [diff] [blame] | 674 | if (fe->ops.get_frontend_algo) { |
Manu Abraham | c59e787 | 2008-10-14 16:34:07 -0300 | [diff] [blame] | 675 | algo = fe->ops.get_frontend_algo(fe); |
| 676 | switch (algo) { |
| 677 | case DVBFE_ALGO_HW: |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 678 | dev_dbg(fe->dvb->device, "%s: Frontend ALGO = DVBFE_ALGO_HW\n", __func__); |
Manu Abraham | c59e787 | 2008-10-14 16:34:07 -0300 | [diff] [blame] | 679 | |
Manu Abraham | d772bd0 | 2006-06-24 11:18:58 -0300 | [diff] [blame] | 680 | if (fepriv->state & FESTATE_RETUNE) { |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 681 | dev_dbg(fe->dvb->device, "%s: Retune requested, FESTATE_RETUNE\n", __func__); |
Mauro Carvalho Chehab | 7e07222 | 2011-12-26 17:48:33 -0300 | [diff] [blame] | 682 | re_tune = true; |
Manu Abraham | d772bd0 | 2006-06-24 11:18:58 -0300 | [diff] [blame] | 683 | fepriv->state = FESTATE_TUNED; |
Simon Arlott | 45145b6 | 2012-02-06 17:57:01 -0300 | [diff] [blame] | 684 | } else { |
| 685 | re_tune = false; |
Manu Abraham | d772bd0 | 2006-06-24 11:18:58 -0300 | [diff] [blame] | 686 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 687 | |
Manu Abraham | c59e787 | 2008-10-14 16:34:07 -0300 | [diff] [blame] | 688 | if (fe->ops.tune) |
Mauro Carvalho Chehab | 7e07222 | 2011-12-26 17:48:33 -0300 | [diff] [blame] | 689 | fe->ops.tune(fe, re_tune, fepriv->tune_mode_flags, &fepriv->delay, &s); |
Manu Abraham | c59e787 | 2008-10-14 16:34:07 -0300 | [diff] [blame] | 690 | |
Darron Broad | 2fac9a0 | 2008-12-18 06:27:50 -0300 | [diff] [blame] | 691 | if (s != fepriv->status && !(fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT)) { |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 692 | dev_dbg(fe->dvb->device, "%s: state changed, adding current state\n", __func__); |
Manu Abraham | d772bd0 | 2006-06-24 11:18:58 -0300 | [diff] [blame] | 693 | dvb_frontend_add_event(fe, s); |
| 694 | fepriv->status = s; |
| 695 | } |
Manu Abraham | c59e787 | 2008-10-14 16:34:07 -0300 | [diff] [blame] | 696 | break; |
| 697 | case DVBFE_ALGO_SW: |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 698 | dev_dbg(fe->dvb->device, "%s: Frontend ALGO = DVBFE_ALGO_SW\n", __func__); |
Manu Abraham | 70d9063 | 2006-06-29 22:05:23 -0300 | [diff] [blame] | 699 | dvb_frontend_swzigzag(fe); |
Manu Abraham | c59e787 | 2008-10-14 16:34:07 -0300 | [diff] [blame] | 700 | break; |
| 701 | case DVBFE_ALGO_CUSTOM: |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 702 | dev_dbg(fe->dvb->device, "%s: Frontend ALGO = DVBFE_ALGO_CUSTOM, state=%d\n", __func__, fepriv->state); |
Manu Abraham | c59e787 | 2008-10-14 16:34:07 -0300 | [diff] [blame] | 703 | if (fepriv->state & FESTATE_RETUNE) { |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 704 | dev_dbg(fe->dvb->device, "%s: Retune requested, FESTAT_RETUNE\n", __func__); |
Manu Abraham | c59e787 | 2008-10-14 16:34:07 -0300 | [diff] [blame] | 705 | fepriv->state = FESTATE_TUNED; |
| 706 | } |
| 707 | /* Case where we are going to search for a carrier |
| 708 | * User asked us to retune again for some reason, possibly |
| 709 | * requesting a search with a new set of parameters |
| 710 | */ |
| 711 | if (fepriv->algo_status & DVBFE_ALGO_SEARCH_AGAIN) { |
Arvo Jarve | 7bcbdf3 | 2008-10-20 06:05:21 -0300 | [diff] [blame] | 712 | if (fe->ops.search) { |
Mauro Carvalho Chehab | 41da532 | 2011-12-26 18:03:12 -0300 | [diff] [blame] | 713 | fepriv->algo_status = fe->ops.search(fe); |
Manu Abraham | c59e787 | 2008-10-14 16:34:07 -0300 | [diff] [blame] | 714 | /* We did do a search as was requested, the flags are |
| 715 | * now unset as well and has the flags wrt to search. |
| 716 | */ |
Arvo Jarve | 7bcbdf3 | 2008-10-20 06:05:21 -0300 | [diff] [blame] | 717 | } else { |
| 718 | fepriv->algo_status &= ~DVBFE_ALGO_SEARCH_AGAIN; |
| 719 | } |
Manu Abraham | c59e787 | 2008-10-14 16:34:07 -0300 | [diff] [blame] | 720 | } |
| 721 | /* Track the carrier if the search was successful */ |
Mauro Carvalho Chehab | 1b5d871 | 2011-12-26 18:11:25 -0300 | [diff] [blame] | 722 | if (fepriv->algo_status != DVBFE_ALGO_SEARCH_SUCCESS) { |
Arvo Jarve | 7bcbdf3 | 2008-10-20 06:05:21 -0300 | [diff] [blame] | 723 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; |
| 724 | fepriv->delay = HZ / 2; |
| 725 | } |
Mauro Carvalho Chehab | 2ea9a08 | 2016-02-04 09:45:14 -0200 | [diff] [blame] | 726 | dtv_property_legacy_params_sync(fe, c, &fepriv->parameters_out); |
Arvo Jarve | 7bcbdf3 | 2008-10-20 06:05:21 -0300 | [diff] [blame] | 727 | fe->ops.read_status(fe, &s); |
| 728 | if (s != fepriv->status) { |
| 729 | dvb_frontend_add_event(fe, s); /* update event list */ |
| 730 | fepriv->status = s; |
| 731 | if (!(s & FE_HAS_LOCK)) { |
| 732 | fepriv->delay = HZ / 10; |
| 733 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; |
| 734 | } else { |
| 735 | fepriv->delay = 60 * HZ; |
| 736 | } |
Manu Abraham | c59e787 | 2008-10-14 16:34:07 -0300 | [diff] [blame] | 737 | } |
| 738 | break; |
| 739 | default: |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 740 | dev_dbg(fe->dvb->device, "%s: UNDEFINED ALGO !\n", __func__); |
Manu Abraham | c59e787 | 2008-10-14 16:34:07 -0300 | [diff] [blame] | 741 | break; |
| 742 | } |
| 743 | } else { |
Manu Abraham | 4a4edcc | 2006-06-25 05:46:26 -0300 | [diff] [blame] | 744 | dvb_frontend_swzigzag(fe); |
Manu Abraham | c59e787 | 2008-10-14 16:34:07 -0300 | [diff] [blame] | 745 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 746 | } |
| 747 | |
Oliver Endriss | 608f62d | 2007-08-25 13:17:53 -0300 | [diff] [blame] | 748 | if (dvb_powerdown_on_sleep) { |
| 749 | if (fe->ops.set_voltage) |
| 750 | fe->ops.set_voltage(fe, SEC_VOLTAGE_OFF); |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 751 | if (fe->ops.tuner_ops.sleep) { |
Devin Heitmueller | 41286d9 | 2008-11-16 00:44:52 -0300 | [diff] [blame] | 752 | if (fe->ops.i2c_gate_ctrl) |
| 753 | fe->ops.i2c_gate_ctrl(fe, 1); |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 754 | fe->ops.tuner_ops.sleep(fe); |
| 755 | if (fe->ops.i2c_gate_ctrl) |
| 756 | fe->ops.i2c_gate_ctrl(fe, 0); |
Andrew de Quincey | 7eef5dd | 2006-04-18 17:47:09 -0300 | [diff] [blame] | 757 | } |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 758 | if (fe->ops.sleep) |
| 759 | fe->ops.sleep(fe); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 760 | } |
| 761 | |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 762 | fepriv->thread = NULL; |
matthieu castet | e36309f | 2010-05-05 15:59:20 -0300 | [diff] [blame] | 763 | if (kthread_should_stop()) |
Shuah Khan | 18ed286 | 2014-07-12 13:44:12 -0300 | [diff] [blame] | 764 | fe->exit = DVB_FE_DEVICE_REMOVED; |
matthieu castet | e36309f | 2010-05-05 15:59:20 -0300 | [diff] [blame] | 765 | else |
Shuah Khan | 18ed286 | 2014-07-12 13:44:12 -0300 | [diff] [blame] | 766 | fe->exit = DVB_FE_NO_EXIT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 767 | mb(); |
| 768 | |
Juergen Lock | 6ae2322 | 2012-12-23 17:23:06 -0300 | [diff] [blame] | 769 | if (semheld) |
| 770 | up(&fepriv->sem); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 771 | dvb_frontend_wakeup(fe); |
| 772 | return 0; |
| 773 | } |
| 774 | |
| 775 | static void dvb_frontend_stop(struct dvb_frontend *fe) |
| 776 | { |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 777 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 778 | |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 779 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 780 | |
Shuah Khan | 18ed286 | 2014-07-12 13:44:12 -0300 | [diff] [blame] | 781 | if (fe->exit != DVB_FE_DEVICE_REMOVED) |
| 782 | fe->exit = DVB_FE_NORMAL_EXIT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 783 | mb(); |
| 784 | |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 785 | if (!fepriv->thread) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 786 | return; |
| 787 | |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 788 | kthread_stop(fepriv->thread); |
Markus Rechberger | ca5be9c | 2007-04-14 10:18:58 -0300 | [diff] [blame] | 789 | |
Thomas Gleixner | a0a4714 | 2010-09-07 11:33:27 -0300 | [diff] [blame] | 790 | sema_init(&fepriv->sem, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 791 | fepriv->state = FESTATE_IDLE; |
| 792 | |
| 793 | /* paranoia check in case a signal arrived */ |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 794 | if (fepriv->thread) |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 795 | dev_warn(fe->dvb->device, |
| 796 | "dvb_frontend_stop: warning: thread %p won't exit\n", |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 797 | fepriv->thread); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 798 | } |
| 799 | |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 800 | /* |
Mauro Carvalho Chehab | 4deea4c | 2015-11-09 23:24:10 -0200 | [diff] [blame] | 801 | * Sleep for the amount of time given by add_usec parameter |
| 802 | * |
| 803 | * This needs to be as precise as possible, as it affects the detection of |
| 804 | * the dish tone command at the satellite subsystem. The precision is improved |
| 805 | * by using a scheduled msleep followed by udelay for the remainder. |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 806 | */ |
Tina Ruchandani | 9056a23 | 2015-05-31 04:17:06 -0300 | [diff] [blame] | 807 | void dvb_frontend_sleep_until(ktime_t *waketime, u32 add_usec) |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 808 | { |
Mauro Carvalho Chehab | a733a41 | 2015-11-18 12:55:47 -0200 | [diff] [blame] | 809 | s32 delta; |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 810 | |
Mauro Carvalho Chehab | a733a41 | 2015-11-18 12:55:47 -0200 | [diff] [blame] | 811 | *waketime = ktime_add_us(*waketime, add_usec); |
Abhilash Jindal | 6b3f999 | 2016-01-31 03:47:31 -0200 | [diff] [blame] | 812 | delta = ktime_us_delta(ktime_get_boottime(), *waketime); |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 813 | if (delta > 2500) { |
| 814 | msleep((delta - 1500) / 1000); |
Abhilash Jindal | 6b3f999 | 2016-01-31 03:47:31 -0200 | [diff] [blame] | 815 | delta = ktime_us_delta(ktime_get_boottime(), *waketime); |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 816 | } |
| 817 | if (delta > 0) |
| 818 | udelay(delta); |
| 819 | } |
| 820 | EXPORT_SYMBOL(dvb_frontend_sleep_until); |
| 821 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 822 | static int dvb_frontend_start(struct dvb_frontend *fe) |
| 823 | { |
| 824 | int ret; |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 825 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 826 | struct task_struct *fe_thread; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 827 | |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 828 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 829 | |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 830 | if (fepriv->thread) { |
Shuah Khan | 18ed286 | 2014-07-12 13:44:12 -0300 | [diff] [blame] | 831 | if (fe->exit == DVB_FE_NO_EXIT) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 832 | return 0; |
| 833 | else |
| 834 | dvb_frontend_stop (fe); |
| 835 | } |
| 836 | |
| 837 | if (signal_pending(current)) |
| 838 | return -EINTR; |
| 839 | if (down_interruptible (&fepriv->sem)) |
| 840 | return -EINTR; |
| 841 | |
| 842 | fepriv->state = FESTATE_IDLE; |
Shuah Khan | 18ed286 | 2014-07-12 13:44:12 -0300 | [diff] [blame] | 843 | fe->exit = DVB_FE_NO_EXIT; |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 844 | fepriv->thread = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 845 | mb(); |
| 846 | |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 847 | fe_thread = kthread_run(dvb_frontend_thread, fe, |
Steven Toth | 363c35f | 2008-10-11 11:05:50 -0300 | [diff] [blame] | 848 | "kdvb-ad-%i-fe-%i", fe->dvb->num,fe->id); |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 849 | if (IS_ERR(fe_thread)) { |
| 850 | ret = PTR_ERR(fe_thread); |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 851 | dev_warn(fe->dvb->device, |
| 852 | "dvb_frontend_start: failed to start kthread (%d)\n", |
| 853 | ret); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 854 | up(&fepriv->sem); |
| 855 | return ret; |
| 856 | } |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 857 | fepriv->thread = fe_thread; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 858 | return 0; |
| 859 | } |
| 860 | |
Guillaume Audirac | 2030c03 | 2010-05-06 09:30:25 -0300 | [diff] [blame] | 861 | static void dvb_frontend_get_frequency_limits(struct dvb_frontend *fe, |
Oliver Endriss | c471b33 | 2007-08-09 01:03:42 -0300 | [diff] [blame] | 862 | u32 *freq_min, u32 *freq_max) |
| 863 | { |
| 864 | *freq_min = max(fe->ops.info.frequency_min, fe->ops.tuner_ops.info.frequency_min); |
| 865 | |
| 866 | if (fe->ops.info.frequency_max == 0) |
| 867 | *freq_max = fe->ops.tuner_ops.info.frequency_max; |
| 868 | else if (fe->ops.tuner_ops.info.frequency_max == 0) |
| 869 | *freq_max = fe->ops.info.frequency_max; |
| 870 | else |
| 871 | *freq_max = min(fe->ops.info.frequency_max, fe->ops.tuner_ops.info.frequency_max); |
| 872 | |
| 873 | if (*freq_min == 0 || *freq_max == 0) |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 874 | dev_warn(fe->dvb->device, "DVB: adapter %i frontend %u frequency limits undefined - fix the driver\n", |
| 875 | fe->dvb->num, fe->id); |
Oliver Endriss | c471b33 | 2007-08-09 01:03:42 -0300 | [diff] [blame] | 876 | } |
| 877 | |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 878 | static int dvb_frontend_check_parameters(struct dvb_frontend *fe) |
Oliver Endriss | 1fab46f | 2007-07-23 21:00:36 -0300 | [diff] [blame] | 879 | { |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 880 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
Oliver Endriss | c471b33 | 2007-08-09 01:03:42 -0300 | [diff] [blame] | 881 | u32 freq_min; |
| 882 | u32 freq_max; |
| 883 | |
Oliver Endriss | 1fab46f | 2007-07-23 21:00:36 -0300 | [diff] [blame] | 884 | /* range check: frequency */ |
Guillaume Audirac | 2030c03 | 2010-05-06 09:30:25 -0300 | [diff] [blame] | 885 | dvb_frontend_get_frequency_limits(fe, &freq_min, &freq_max); |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 886 | if ((freq_min && c->frequency < freq_min) || |
| 887 | (freq_max && c->frequency > freq_max)) { |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 888 | dev_warn(fe->dvb->device, "DVB: adapter %i frontend %i frequency %u out of range (%u..%u)\n", |
| 889 | fe->dvb->num, fe->id, c->frequency, |
| 890 | freq_min, freq_max); |
Oliver Endriss | 1fab46f | 2007-07-23 21:00:36 -0300 | [diff] [blame] | 891 | return -EINVAL; |
| 892 | } |
| 893 | |
| 894 | /* range check: symbol rate */ |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 895 | switch (c->delivery_system) { |
| 896 | case SYS_DVBS: |
| 897 | case SYS_DVBS2: |
| 898 | case SYS_TURBO: |
| 899 | case SYS_DVBC_ANNEX_A: |
| 900 | case SYS_DVBC_ANNEX_C: |
Oliver Endriss | 1fab46f | 2007-07-23 21:00:36 -0300 | [diff] [blame] | 901 | if ((fe->ops.info.symbol_rate_min && |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 902 | c->symbol_rate < fe->ops.info.symbol_rate_min) || |
Oliver Endriss | 1fab46f | 2007-07-23 21:00:36 -0300 | [diff] [blame] | 903 | (fe->ops.info.symbol_rate_max && |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 904 | c->symbol_rate > fe->ops.info.symbol_rate_max)) { |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 905 | dev_warn(fe->dvb->device, "DVB: adapter %i frontend %i symbol rate %u out of range (%u..%u)\n", |
| 906 | fe->dvb->num, fe->id, c->symbol_rate, |
| 907 | fe->ops.info.symbol_rate_min, |
| 908 | fe->ops.info.symbol_rate_max); |
Oliver Endriss | 1fab46f | 2007-07-23 21:00:36 -0300 | [diff] [blame] | 909 | return -EINVAL; |
| 910 | } |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 911 | default: |
| 912 | break; |
Oliver Endriss | 1fab46f | 2007-07-23 21:00:36 -0300 | [diff] [blame] | 913 | } |
| 914 | |
| 915 | return 0; |
| 916 | } |
| 917 | |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 918 | static int dvb_frontend_clear_cache(struct dvb_frontend *fe) |
| 919 | { |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 920 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 921 | int i; |
Mauro Carvalho Chehab | 149709f | 2012-01-13 11:46:36 -0200 | [diff] [blame] | 922 | u32 delsys; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 923 | |
Mauro Carvalho Chehab | 149709f | 2012-01-13 11:46:36 -0200 | [diff] [blame] | 924 | delsys = c->delivery_system; |
Mauro Carvalho Chehab | 808d24d | 2013-03-20 10:39:31 -0300 | [diff] [blame] | 925 | memset(c, 0, offsetof(struct dtv_frontend_properties, strength)); |
Mauro Carvalho Chehab | 149709f | 2012-01-13 11:46:36 -0200 | [diff] [blame] | 926 | c->delivery_system = delsys; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 927 | |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 928 | c->state = DTV_CLEAR; |
Mauro Carvalho Chehab | 26c924f | 2012-01-01 16:11:10 -0300 | [diff] [blame] | 929 | |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 930 | dev_dbg(fe->dvb->device, "%s: Clearing cache for delivery system %d\n", |
| 931 | __func__, c->delivery_system); |
Mauro Carvalho Chehab | 26c924f | 2012-01-01 16:11:10 -0300 | [diff] [blame] | 932 | |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 933 | c->transmission_mode = TRANSMISSION_MODE_AUTO; |
Mauro Carvalho Chehab | 26c924f | 2012-01-01 16:11:10 -0300 | [diff] [blame] | 934 | c->bandwidth_hz = 0; /* AUTO */ |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 935 | c->guard_interval = GUARD_INTERVAL_AUTO; |
| 936 | c->hierarchy = HIERARCHY_AUTO; |
Mauro Carvalho Chehab | 26c924f | 2012-01-01 16:11:10 -0300 | [diff] [blame] | 937 | c->symbol_rate = 0; |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 938 | c->code_rate_HP = FEC_AUTO; |
| 939 | c->code_rate_LP = FEC_AUTO; |
Mauro Carvalho Chehab | 26c924f | 2012-01-01 16:11:10 -0300 | [diff] [blame] | 940 | c->fec_inner = FEC_AUTO; |
Mauro Carvalho Chehab | 39ce61a | 2011-11-11 12:46:23 -0200 | [diff] [blame] | 941 | c->rolloff = ROLLOFF_AUTO; |
Mauro Carvalho Chehab | 26c924f | 2012-01-01 16:11:10 -0300 | [diff] [blame] | 942 | c->voltage = SEC_VOLTAGE_OFF; |
Mauro Carvalho Chehab | 26c924f | 2012-01-01 16:11:10 -0300 | [diff] [blame] | 943 | c->sectone = SEC_TONE_OFF; |
| 944 | c->pilot = PILOT_AUTO; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 945 | |
Mauro Carvalho Chehab | a520ca9 | 2012-01-01 16:11:15 -0300 | [diff] [blame] | 946 | c->isdbt_partial_reception = 0; |
| 947 | c->isdbt_sb_mode = 0; |
| 948 | c->isdbt_sb_subchannel = 0; |
| 949 | c->isdbt_sb_segment_idx = 0; |
| 950 | c->isdbt_sb_segment_count = 0; |
| 951 | c->isdbt_layer_enabled = 0; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 952 | for (i = 0; i < 3; i++) { |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 953 | c->layer[i].fec = FEC_AUTO; |
| 954 | c->layer[i].modulation = QAM_AUTO; |
Mauro Carvalho Chehab | a520ca9 | 2012-01-01 16:11:15 -0300 | [diff] [blame] | 955 | c->layer[i].interleaving = 0; |
| 956 | c->layer[i].segment_count = 0; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 957 | } |
| 958 | |
Evgeny Plehov | 287cefd | 2012-09-13 10:13:30 -0300 | [diff] [blame] | 959 | c->stream_id = NO_STREAM_ID_FILTER; |
Mauro Carvalho Chehab | 26c924f | 2012-01-01 16:11:10 -0300 | [diff] [blame] | 960 | |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 961 | switch (c->delivery_system) { |
| 962 | case SYS_DVBS: |
| 963 | case SYS_DVBS2: |
| 964 | case SYS_TURBO: |
| 965 | c->modulation = QPSK; /* implied for DVB-S in legacy API */ |
| 966 | c->rolloff = ROLLOFF_35;/* implied for DVB-S */ |
| 967 | break; |
| 968 | case SYS_ATSC: |
| 969 | c->modulation = VSB_8; |
| 970 | break; |
Akihiro Tsukada | 8e281fa | 2014-10-31 10:19:39 -0300 | [diff] [blame] | 971 | case SYS_ISDBS: |
| 972 | c->symbol_rate = 28860000; |
| 973 | c->rolloff = ROLLOFF_35; |
| 974 | c->bandwidth_hz = c->symbol_rate / 100 * 135; |
| 975 | break; |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 976 | default: |
| 977 | c->modulation = QAM_AUTO; |
| 978 | break; |
| 979 | } |
| 980 | |
Antti Palosaari | 33eebec | 2012-10-03 04:28:56 -0300 | [diff] [blame] | 981 | c->lna = LNA_AUTO; |
| 982 | |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 983 | return 0; |
| 984 | } |
| 985 | |
| 986 | #define _DTV_CMD(n, s, b) \ |
| 987 | [n] = { \ |
| 988 | .name = #n, \ |
| 989 | .cmd = n, \ |
| 990 | .set = s,\ |
| 991 | .buffer = b \ |
| 992 | } |
| 993 | |
Andreas Oberritter | ec05a64 | 2011-05-26 07:54:14 -0300 | [diff] [blame] | 994 | static struct dtv_cmds_h dtv_cmds[DTV_MAX_COMMAND + 1] = { |
Mauro Carvalho Chehab | 06d3a39 | 2009-10-23 20:09:42 -0300 | [diff] [blame] | 995 | _DTV_CMD(DTV_TUNE, 1, 0), |
| 996 | _DTV_CMD(DTV_CLEAR, 1, 0), |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 997 | |
| 998 | /* Set */ |
Mauro Carvalho Chehab | 06d3a39 | 2009-10-23 20:09:42 -0300 | [diff] [blame] | 999 | _DTV_CMD(DTV_FREQUENCY, 1, 0), |
| 1000 | _DTV_CMD(DTV_BANDWIDTH_HZ, 1, 0), |
| 1001 | _DTV_CMD(DTV_MODULATION, 1, 0), |
| 1002 | _DTV_CMD(DTV_INVERSION, 1, 0), |
| 1003 | _DTV_CMD(DTV_DISEQC_MASTER, 1, 1), |
| 1004 | _DTV_CMD(DTV_SYMBOL_RATE, 1, 0), |
| 1005 | _DTV_CMD(DTV_INNER_FEC, 1, 0), |
| 1006 | _DTV_CMD(DTV_VOLTAGE, 1, 0), |
| 1007 | _DTV_CMD(DTV_TONE, 1, 0), |
| 1008 | _DTV_CMD(DTV_PILOT, 1, 0), |
| 1009 | _DTV_CMD(DTV_ROLLOFF, 1, 0), |
| 1010 | _DTV_CMD(DTV_DELIVERY_SYSTEM, 1, 0), |
| 1011 | _DTV_CMD(DTV_HIERARCHY, 1, 0), |
| 1012 | _DTV_CMD(DTV_CODE_RATE_HP, 1, 0), |
| 1013 | _DTV_CMD(DTV_CODE_RATE_LP, 1, 0), |
| 1014 | _DTV_CMD(DTV_GUARD_INTERVAL, 1, 0), |
| 1015 | _DTV_CMD(DTV_TRANSMISSION_MODE, 1, 0), |
Antti Palosaari | 224b664 | 2012-08-12 22:33:21 -0300 | [diff] [blame] | 1016 | _DTV_CMD(DTV_INTERLEAVING, 1, 0), |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1017 | |
| 1018 | _DTV_CMD(DTV_ISDBT_PARTIAL_RECEPTION, 1, 0), |
| 1019 | _DTV_CMD(DTV_ISDBT_SOUND_BROADCASTING, 1, 0), |
| 1020 | _DTV_CMD(DTV_ISDBT_SB_SUBCHANNEL_ID, 1, 0), |
| 1021 | _DTV_CMD(DTV_ISDBT_SB_SEGMENT_IDX, 1, 0), |
| 1022 | _DTV_CMD(DTV_ISDBT_SB_SEGMENT_COUNT, 1, 0), |
Patrick Boettcher | e7b7949 | 2009-08-14 05:24:19 -0300 | [diff] [blame] | 1023 | _DTV_CMD(DTV_ISDBT_LAYER_ENABLED, 1, 0), |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1024 | _DTV_CMD(DTV_ISDBT_LAYERA_FEC, 1, 0), |
| 1025 | _DTV_CMD(DTV_ISDBT_LAYERA_MODULATION, 1, 0), |
| 1026 | _DTV_CMD(DTV_ISDBT_LAYERA_SEGMENT_COUNT, 1, 0), |
| 1027 | _DTV_CMD(DTV_ISDBT_LAYERA_TIME_INTERLEAVING, 1, 0), |
| 1028 | _DTV_CMD(DTV_ISDBT_LAYERB_FEC, 1, 0), |
| 1029 | _DTV_CMD(DTV_ISDBT_LAYERB_MODULATION, 1, 0), |
| 1030 | _DTV_CMD(DTV_ISDBT_LAYERB_SEGMENT_COUNT, 1, 0), |
| 1031 | _DTV_CMD(DTV_ISDBT_LAYERB_TIME_INTERLEAVING, 1, 0), |
| 1032 | _DTV_CMD(DTV_ISDBT_LAYERC_FEC, 1, 0), |
| 1033 | _DTV_CMD(DTV_ISDBT_LAYERC_MODULATION, 1, 0), |
| 1034 | _DTV_CMD(DTV_ISDBT_LAYERC_SEGMENT_COUNT, 1, 0), |
| 1035 | _DTV_CMD(DTV_ISDBT_LAYERC_TIME_INTERLEAVING, 1, 0), |
| 1036 | |
Evgeny Plehov | 287cefd | 2012-09-13 10:13:30 -0300 | [diff] [blame] | 1037 | _DTV_CMD(DTV_STREAM_ID, 1, 0), |
| 1038 | _DTV_CMD(DTV_DVBT2_PLP_ID_LEGACY, 1, 0), |
Antti Palosaari | 8a2697a | 2012-07-11 21:54:50 -0300 | [diff] [blame] | 1039 | _DTV_CMD(DTV_LNA, 1, 0), |
HIRANO Takahito | 98293ef | 2009-09-18 11:17:54 -0300 | [diff] [blame] | 1040 | |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1041 | /* Get */ |
Mauro Carvalho Chehab | 06d3a39 | 2009-10-23 20:09:42 -0300 | [diff] [blame] | 1042 | _DTV_CMD(DTV_DISEQC_SLAVE_REPLY, 0, 1), |
| 1043 | _DTV_CMD(DTV_API_VERSION, 0, 0), |
Manu Abraham | ba2780c | 2011-11-13 18:47:44 -0300 | [diff] [blame] | 1044 | |
| 1045 | _DTV_CMD(DTV_ENUM_DELSYS, 0, 0), |
Michael Krufky | ca68948 | 2012-01-29 15:44:58 -0300 | [diff] [blame] | 1046 | |
| 1047 | _DTV_CMD(DTV_ATSCMH_PARADE_ID, 1, 0), |
| 1048 | _DTV_CMD(DTV_ATSCMH_RS_FRAME_ENSEMBLE, 1, 0), |
| 1049 | |
| 1050 | _DTV_CMD(DTV_ATSCMH_FIC_VER, 0, 0), |
Michael Krufky | ca68948 | 2012-01-29 15:44:58 -0300 | [diff] [blame] | 1051 | _DTV_CMD(DTV_ATSCMH_NOG, 0, 0), |
| 1052 | _DTV_CMD(DTV_ATSCMH_TNOG, 0, 0), |
| 1053 | _DTV_CMD(DTV_ATSCMH_SGN, 0, 0), |
| 1054 | _DTV_CMD(DTV_ATSCMH_PRC, 0, 0), |
| 1055 | _DTV_CMD(DTV_ATSCMH_RS_FRAME_MODE, 0, 0), |
Michael Krufky | ca68948 | 2012-01-29 15:44:58 -0300 | [diff] [blame] | 1056 | _DTV_CMD(DTV_ATSCMH_RS_CODE_MODE_PRI, 0, 0), |
| 1057 | _DTV_CMD(DTV_ATSCMH_RS_CODE_MODE_SEC, 0, 0), |
| 1058 | _DTV_CMD(DTV_ATSCMH_SCCC_BLOCK_MODE, 0, 0), |
| 1059 | _DTV_CMD(DTV_ATSCMH_SCCC_CODE_MODE_A, 0, 0), |
| 1060 | _DTV_CMD(DTV_ATSCMH_SCCC_CODE_MODE_B, 0, 0), |
| 1061 | _DTV_CMD(DTV_ATSCMH_SCCC_CODE_MODE_C, 0, 0), |
| 1062 | _DTV_CMD(DTV_ATSCMH_SCCC_CODE_MODE_D, 0, 0), |
Mauro Carvalho Chehab | 7cd4ece | 2013-01-07 15:41:35 -0300 | [diff] [blame] | 1063 | |
| 1064 | /* Statistics API */ |
| 1065 | _DTV_CMD(DTV_STAT_SIGNAL_STRENGTH, 0, 0), |
| 1066 | _DTV_CMD(DTV_STAT_CNR, 0, 0), |
| 1067 | _DTV_CMD(DTV_STAT_PRE_ERROR_BIT_COUNT, 0, 0), |
| 1068 | _DTV_CMD(DTV_STAT_PRE_TOTAL_BIT_COUNT, 0, 0), |
| 1069 | _DTV_CMD(DTV_STAT_POST_ERROR_BIT_COUNT, 0, 0), |
| 1070 | _DTV_CMD(DTV_STAT_POST_TOTAL_BIT_COUNT, 0, 0), |
| 1071 | _DTV_CMD(DTV_STAT_ERROR_BLOCK_COUNT, 0, 0), |
| 1072 | _DTV_CMD(DTV_STAT_TOTAL_BLOCK_COUNT, 0, 0), |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1073 | }; |
| 1074 | |
Mauro Carvalho Chehab | c29ebb6 | 2016-02-03 17:29:41 -0200 | [diff] [blame] | 1075 | static void dtv_property_dump(struct dvb_frontend *fe, |
| 1076 | bool is_set, |
| 1077 | struct dtv_property *tvp) |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1078 | { |
| 1079 | int i; |
| 1080 | |
Mauro Carvalho Chehab | 106ff9e | 2011-07-15 08:49:06 -0300 | [diff] [blame] | 1081 | if (tvp->cmd <= 0 || tvp->cmd > DTV_MAX_COMMAND) { |
Mauro Carvalho Chehab | c29ebb6 | 2016-02-03 17:29:41 -0200 | [diff] [blame] | 1082 | dev_warn(fe->dvb->device, "%s: %s tvp.cmd = 0x%08x undefined\n", |
| 1083 | __func__, |
| 1084 | is_set ? "SET" : "GET", |
| 1085 | tvp->cmd); |
Darron Broad | 4aae8ef | 2008-10-03 11:50:00 -0300 | [diff] [blame] | 1086 | return; |
| 1087 | } |
| 1088 | |
Mauro Carvalho Chehab | c29ebb6 | 2016-02-03 17:29:41 -0200 | [diff] [blame] | 1089 | dev_dbg(fe->dvb->device, "%s: %s tvp.cmd = 0x%08x (%s)\n", __func__, |
| 1090 | is_set ? "SET" : "GET", |
| 1091 | tvp->cmd, |
| 1092 | dtv_cmds[tvp->cmd].name); |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1093 | |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 1094 | if (dtv_cmds[tvp->cmd].buffer) { |
| 1095 | dev_dbg(fe->dvb->device, "%s: tvp.u.buffer.len = 0x%02x\n", |
| 1096 | __func__, tvp->u.buffer.len); |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1097 | |
| 1098 | for(i = 0; i < tvp->u.buffer.len; i++) |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 1099 | dev_dbg(fe->dvb->device, |
| 1100 | "%s: tvp.u.buffer.data[0x%02x] = 0x%02x\n", |
| 1101 | __func__, i, tvp->u.buffer.data[i]); |
| 1102 | } else { |
| 1103 | dev_dbg(fe->dvb->device, "%s: tvp.u.data = 0x%08x\n", __func__, |
| 1104 | tvp->u.data); |
| 1105 | } |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1106 | } |
| 1107 | |
Steven Toth | ee33c52 | 2008-09-11 23:52:32 -0300 | [diff] [blame] | 1108 | /* Synchronise the legacy tuning parameters into the cache, so that demodulator |
| 1109 | * drivers can use a single set_frontend tuning function, regardless of whether |
| 1110 | * it's being used for the legacy or new API, reducing code and complexity. |
| 1111 | */ |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 1112 | static int dtv_property_cache_sync(struct dvb_frontend *fe, |
| 1113 | struct dtv_frontend_properties *c, |
| 1114 | const struct dvb_frontend_parameters *p) |
Steven Toth | ee33c52 | 2008-09-11 23:52:32 -0300 | [diff] [blame] | 1115 | { |
Steven Toth | ee33c52 | 2008-09-11 23:52:32 -0300 | [diff] [blame] | 1116 | c->frequency = p->frequency; |
| 1117 | c->inversion = p->inversion; |
| 1118 | |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 1119 | switch (dvbv3_type(c->delivery_system)) { |
| 1120 | case DVBV3_QPSK: |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 1121 | dev_dbg(fe->dvb->device, "%s: Preparing QPSK req\n", __func__); |
Steven Toth | ee33c52 | 2008-09-11 23:52:32 -0300 | [diff] [blame] | 1122 | c->symbol_rate = p->u.qpsk.symbol_rate; |
| 1123 | c->fec_inner = p->u.qpsk.fec_inner; |
| 1124 | break; |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 1125 | case DVBV3_QAM: |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 1126 | dev_dbg(fe->dvb->device, "%s: Preparing QAM req\n", __func__); |
Steven Toth | ee33c52 | 2008-09-11 23:52:32 -0300 | [diff] [blame] | 1127 | c->symbol_rate = p->u.qam.symbol_rate; |
| 1128 | c->fec_inner = p->u.qam.fec_inner; |
| 1129 | c->modulation = p->u.qam.modulation; |
| 1130 | break; |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 1131 | case DVBV3_OFDM: |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 1132 | dev_dbg(fe->dvb->device, "%s: Preparing OFDM req\n", __func__); |
| 1133 | |
Mauro Carvalho Chehab | 9a27e6a | 2012-01-01 16:11:11 -0300 | [diff] [blame] | 1134 | switch (p->u.ofdm.bandwidth) { |
| 1135 | case BANDWIDTH_10_MHZ: |
| 1136 | c->bandwidth_hz = 10000000; |
| 1137 | break; |
| 1138 | case BANDWIDTH_8_MHZ: |
Steven Toth | 75b7f94 | 2008-09-13 16:56:34 -0300 | [diff] [blame] | 1139 | c->bandwidth_hz = 8000000; |
Mauro Carvalho Chehab | 9a27e6a | 2012-01-01 16:11:11 -0300 | [diff] [blame] | 1140 | break; |
| 1141 | case BANDWIDTH_7_MHZ: |
| 1142 | c->bandwidth_hz = 7000000; |
| 1143 | break; |
| 1144 | case BANDWIDTH_6_MHZ: |
| 1145 | c->bandwidth_hz = 6000000; |
| 1146 | break; |
| 1147 | case BANDWIDTH_5_MHZ: |
| 1148 | c->bandwidth_hz = 5000000; |
| 1149 | break; |
| 1150 | case BANDWIDTH_1_712_MHZ: |
| 1151 | c->bandwidth_hz = 1712000; |
| 1152 | break; |
| 1153 | case BANDWIDTH_AUTO: |
Steven Toth | 75b7f94 | 2008-09-13 16:56:34 -0300 | [diff] [blame] | 1154 | c->bandwidth_hz = 0; |
Mauro Carvalho Chehab | 9a27e6a | 2012-01-01 16:11:11 -0300 | [diff] [blame] | 1155 | } |
| 1156 | |
Steven Toth | ee33c52 | 2008-09-11 23:52:32 -0300 | [diff] [blame] | 1157 | c->code_rate_HP = p->u.ofdm.code_rate_HP; |
| 1158 | c->code_rate_LP = p->u.ofdm.code_rate_LP; |
| 1159 | c->modulation = p->u.ofdm.constellation; |
| 1160 | c->transmission_mode = p->u.ofdm.transmission_mode; |
| 1161 | c->guard_interval = p->u.ofdm.guard_interval; |
| 1162 | c->hierarchy = p->u.ofdm.hierarchy_information; |
| 1163 | break; |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 1164 | case DVBV3_ATSC: |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 1165 | dev_dbg(fe->dvb->device, "%s: Preparing ATSC req\n", __func__); |
Steven Toth | ee33c52 | 2008-09-11 23:52:32 -0300 | [diff] [blame] | 1166 | c->modulation = p->u.vsb.modulation; |
Michael Krufky | ca68948 | 2012-01-29 15:44:58 -0300 | [diff] [blame] | 1167 | if (c->delivery_system == SYS_ATSCMH) |
| 1168 | break; |
Steven Toth | 80a773c | 2008-09-12 00:53:50 -0300 | [diff] [blame] | 1169 | if ((c->modulation == VSB_8) || (c->modulation == VSB_16)) |
| 1170 | c->delivery_system = SYS_ATSC; |
| 1171 | else |
| 1172 | c->delivery_system = SYS_DVBC_ANNEX_B; |
Steven Toth | ee33c52 | 2008-09-11 23:52:32 -0300 | [diff] [blame] | 1173 | break; |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 1174 | case DVBV3_UNKNOWN: |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 1175 | dev_err(fe->dvb->device, |
| 1176 | "%s: doesn't know how to handle a DVBv3 call to delivery system %i\n", |
| 1177 | __func__, c->delivery_system); |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 1178 | return -EINVAL; |
Steven Toth | ee33c52 | 2008-09-11 23:52:32 -0300 | [diff] [blame] | 1179 | } |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 1180 | |
| 1181 | return 0; |
Steven Toth | ee33c52 | 2008-09-11 23:52:32 -0300 | [diff] [blame] | 1182 | } |
| 1183 | |
Steven Toth | d5748f1 | 2008-09-12 00:27:13 -0300 | [diff] [blame] | 1184 | /* Ensure the cached values are set correctly in the frontend |
| 1185 | * legacy tuning structures, for the advanced tuning API. |
| 1186 | */ |
Mauro Carvalho Chehab | 2ea9a08 | 2016-02-04 09:45:14 -0200 | [diff] [blame] | 1187 | static int |
| 1188 | dtv_property_legacy_params_sync(struct dvb_frontend *fe, |
| 1189 | const struct dtv_frontend_properties *c, |
| 1190 | struct dvb_frontend_parameters *p) |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1191 | { |
Steven Toth | d5748f1 | 2008-09-12 00:27:13 -0300 | [diff] [blame] | 1192 | p->frequency = c->frequency; |
| 1193 | p->inversion = c->inversion; |
| 1194 | |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 1195 | switch (dvbv3_type(c->delivery_system)) { |
| 1196 | case DVBV3_UNKNOWN: |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 1197 | dev_err(fe->dvb->device, |
| 1198 | "%s: doesn't know how to handle a DVBv3 call to delivery system %i\n", |
| 1199 | __func__, c->delivery_system); |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 1200 | return -EINVAL; |
| 1201 | case DVBV3_QPSK: |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 1202 | dev_dbg(fe->dvb->device, "%s: Preparing QPSK req\n", __func__); |
Steven Toth | d5748f1 | 2008-09-12 00:27:13 -0300 | [diff] [blame] | 1203 | p->u.qpsk.symbol_rate = c->symbol_rate; |
| 1204 | p->u.qpsk.fec_inner = c->fec_inner; |
| 1205 | break; |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 1206 | case DVBV3_QAM: |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 1207 | dev_dbg(fe->dvb->device, "%s: Preparing QAM req\n", __func__); |
Steven Toth | d5748f1 | 2008-09-12 00:27:13 -0300 | [diff] [blame] | 1208 | p->u.qam.symbol_rate = c->symbol_rate; |
| 1209 | p->u.qam.fec_inner = c->fec_inner; |
| 1210 | p->u.qam.modulation = c->modulation; |
| 1211 | break; |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 1212 | case DVBV3_OFDM: |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 1213 | dev_dbg(fe->dvb->device, "%s: Preparing OFDM req\n", __func__); |
Mauro Carvalho Chehab | 9a27e6a | 2012-01-01 16:11:11 -0300 | [diff] [blame] | 1214 | switch (c->bandwidth_hz) { |
| 1215 | case 10000000: |
| 1216 | p->u.ofdm.bandwidth = BANDWIDTH_10_MHZ; |
| 1217 | break; |
| 1218 | case 8000000: |
Steven Toth | 75b7f94 | 2008-09-13 16:56:34 -0300 | [diff] [blame] | 1219 | p->u.ofdm.bandwidth = BANDWIDTH_8_MHZ; |
Mauro Carvalho Chehab | 9a27e6a | 2012-01-01 16:11:11 -0300 | [diff] [blame] | 1220 | break; |
| 1221 | case 7000000: |
| 1222 | p->u.ofdm.bandwidth = BANDWIDTH_7_MHZ; |
| 1223 | break; |
| 1224 | case 6000000: |
| 1225 | p->u.ofdm.bandwidth = BANDWIDTH_6_MHZ; |
| 1226 | break; |
| 1227 | case 5000000: |
| 1228 | p->u.ofdm.bandwidth = BANDWIDTH_5_MHZ; |
| 1229 | break; |
| 1230 | case 1712000: |
| 1231 | p->u.ofdm.bandwidth = BANDWIDTH_1_712_MHZ; |
| 1232 | break; |
| 1233 | case 0: |
| 1234 | default: |
Steven Toth | 75b7f94 | 2008-09-13 16:56:34 -0300 | [diff] [blame] | 1235 | p->u.ofdm.bandwidth = BANDWIDTH_AUTO; |
Mauro Carvalho Chehab | 9a27e6a | 2012-01-01 16:11:11 -0300 | [diff] [blame] | 1236 | } |
Steven Toth | d5748f1 | 2008-09-12 00:27:13 -0300 | [diff] [blame] | 1237 | p->u.ofdm.code_rate_HP = c->code_rate_HP; |
| 1238 | p->u.ofdm.code_rate_LP = c->code_rate_LP; |
| 1239 | p->u.ofdm.constellation = c->modulation; |
| 1240 | p->u.ofdm.transmission_mode = c->transmission_mode; |
| 1241 | p->u.ofdm.guard_interval = c->guard_interval; |
| 1242 | p->u.ofdm.hierarchy_information = c->hierarchy; |
| 1243 | break; |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 1244 | case DVBV3_ATSC: |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 1245 | dev_dbg(fe->dvb->device, "%s: Preparing VSB req\n", __func__); |
Steven Toth | d5748f1 | 2008-09-12 00:27:13 -0300 | [diff] [blame] | 1246 | p->u.vsb.modulation = c->modulation; |
| 1247 | break; |
| 1248 | } |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 1249 | return 0; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1250 | } |
| 1251 | |
Mauro Carvalho Chehab | a689e36 | 2011-12-22 14:47:48 -0300 | [diff] [blame] | 1252 | /** |
| 1253 | * dtv_get_frontend - calls a callback for retrieving DTV parameters |
| 1254 | * @fe: struct dvb_frontend pointer |
| 1255 | * @c: struct dtv_frontend_properties pointer (DVBv5 cache) |
| 1256 | * @p_out struct dvb_frontend_parameters pointer (DVBv3 FE struct) |
| 1257 | * |
| 1258 | * This routine calls either the DVBv3 or DVBv5 get_frontend call. |
| 1259 | * If c is not null, it will update the DVBv5 cache struct pointed by it. |
| 1260 | * If p_out is not null, it will update the DVBv3 params pointed by it. |
| 1261 | */ |
| 1262 | static int dtv_get_frontend(struct dvb_frontend *fe, |
Mauro Carvalho Chehab | 2ea9a08 | 2016-02-04 09:45:14 -0200 | [diff] [blame] | 1263 | struct dtv_frontend_properties *c, |
Mauro Carvalho Chehab | a689e36 | 2011-12-22 14:47:48 -0300 | [diff] [blame] | 1264 | struct dvb_frontend_parameters *p_out) |
| 1265 | { |
Mauro Carvalho Chehab | a689e36 | 2011-12-22 14:47:48 -0300 | [diff] [blame] | 1266 | int r; |
| 1267 | |
Mauro Carvalho Chehab | a689e36 | 2011-12-22 14:47:48 -0300 | [diff] [blame] | 1268 | if (fe->ops.get_frontend) { |
Mauro Carvalho Chehab | 7e3e68b | 2016-02-04 12:58:30 -0200 | [diff] [blame] | 1269 | r = fe->ops.get_frontend(fe, c); |
Mauro Carvalho Chehab | a689e36 | 2011-12-22 14:47:48 -0300 | [diff] [blame] | 1270 | if (unlikely(r < 0)) |
| 1271 | return r; |
Mauro Carvalho Chehab | 7c61d80 | 2011-12-30 11:30:21 -0300 | [diff] [blame] | 1272 | if (p_out) |
Mauro Carvalho Chehab | 2ea9a08 | 2016-02-04 09:45:14 -0200 | [diff] [blame] | 1273 | dtv_property_legacy_params_sync(fe, c, p_out); |
Mauro Carvalho Chehab | a689e36 | 2011-12-22 14:47:48 -0300 | [diff] [blame] | 1274 | return 0; |
| 1275 | } |
| 1276 | |
Mauro Carvalho Chehab | 7c61d80 | 2011-12-30 11:30:21 -0300 | [diff] [blame] | 1277 | /* As everything is in cache, get_frontend fops are always supported */ |
Mauro Carvalho Chehab | b1e9a6501 | 2011-12-26 16:43:32 -0300 | [diff] [blame] | 1278 | return 0; |
Mauro Carvalho Chehab | a689e36 | 2011-12-22 14:47:48 -0300 | [diff] [blame] | 1279 | } |
| 1280 | |
Arnd Bergmann | 16ef8de | 2010-04-27 00:24:00 +0200 | [diff] [blame] | 1281 | static int dvb_frontend_ioctl_legacy(struct file *file, |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1282 | unsigned int cmd, void *parg); |
Arnd Bergmann | 16ef8de | 2010-04-27 00:24:00 +0200 | [diff] [blame] | 1283 | static int dvb_frontend_ioctl_properties(struct file *file, |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1284 | unsigned int cmd, void *parg); |
| 1285 | |
Mauro Carvalho Chehab | 072ce0c | 2009-01-05 01:19:06 -0300 | [diff] [blame] | 1286 | static int dtv_property_process_get(struct dvb_frontend *fe, |
Mauro Carvalho Chehab | a689e36 | 2011-12-22 14:47:48 -0300 | [diff] [blame] | 1287 | const struct dtv_frontend_properties *c, |
Mauro Carvalho Chehab | 072ce0c | 2009-01-05 01:19:06 -0300 | [diff] [blame] | 1288 | struct dtv_property *tvp, |
Arnd Bergmann | 16ef8de | 2010-04-27 00:24:00 +0200 | [diff] [blame] | 1289 | struct file *file) |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1290 | { |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 1291 | int r, ncaps; |
Steven Toth | bfbf2da | 2008-09-12 01:37:37 -0300 | [diff] [blame] | 1292 | |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1293 | switch(tvp->cmd) { |
Manu Abraham | ba2780c | 2011-11-13 18:47:44 -0300 | [diff] [blame] | 1294 | case DTV_ENUM_DELSYS: |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 1295 | ncaps = 0; |
Ole Ernst | 0123f29 | 2014-03-05 14:08:15 -0300 | [diff] [blame] | 1296 | while (ncaps < MAX_DELSYS && fe->ops.delsys[ncaps]) { |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 1297 | tvp->u.buffer.data[ncaps] = fe->ops.delsys[ncaps]; |
| 1298 | ncaps++; |
| 1299 | } |
| 1300 | tvp->u.buffer.len = ncaps; |
Manu Abraham | ba2780c | 2011-11-13 18:47:44 -0300 | [diff] [blame] | 1301 | break; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1302 | case DTV_FREQUENCY: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1303 | tvp->u.data = c->frequency; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1304 | break; |
| 1305 | case DTV_MODULATION: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1306 | tvp->u.data = c->modulation; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1307 | break; |
Steven Toth | 75b7f94 | 2008-09-13 16:56:34 -0300 | [diff] [blame] | 1308 | case DTV_BANDWIDTH_HZ: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1309 | tvp->u.data = c->bandwidth_hz; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1310 | break; |
| 1311 | case DTV_INVERSION: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1312 | tvp->u.data = c->inversion; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1313 | break; |
| 1314 | case DTV_SYMBOL_RATE: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1315 | tvp->u.data = c->symbol_rate; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1316 | break; |
| 1317 | case DTV_INNER_FEC: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1318 | tvp->u.data = c->fec_inner; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1319 | break; |
| 1320 | case DTV_PILOT: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1321 | tvp->u.data = c->pilot; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1322 | break; |
| 1323 | case DTV_ROLLOFF: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1324 | tvp->u.data = c->rolloff; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1325 | break; |
| 1326 | case DTV_DELIVERY_SYSTEM: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1327 | tvp->u.data = c->delivery_system; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1328 | break; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1329 | case DTV_VOLTAGE: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1330 | tvp->u.data = c->voltage; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1331 | break; |
| 1332 | case DTV_TONE: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1333 | tvp->u.data = c->sectone; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1334 | break; |
Steven Toth | eacf8d8 | 2008-09-26 00:29:49 -0300 | [diff] [blame] | 1335 | case DTV_API_VERSION: |
| 1336 | tvp->u.data = (DVB_API_VERSION << 8) | DVB_API_VERSION_MINOR; |
| 1337 | break; |
Steven Toth | a4de91b | 2008-10-06 21:55:46 -0300 | [diff] [blame] | 1338 | case DTV_CODE_RATE_HP: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1339 | tvp->u.data = c->code_rate_HP; |
Steven Toth | a4de91b | 2008-10-06 21:55:46 -0300 | [diff] [blame] | 1340 | break; |
| 1341 | case DTV_CODE_RATE_LP: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1342 | tvp->u.data = c->code_rate_LP; |
Steven Toth | a4de91b | 2008-10-06 21:55:46 -0300 | [diff] [blame] | 1343 | break; |
Steven Toth | b87625f | 2008-10-06 21:56:59 -0300 | [diff] [blame] | 1344 | case DTV_GUARD_INTERVAL: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1345 | tvp->u.data = c->guard_interval; |
Steven Toth | b87625f | 2008-10-06 21:56:59 -0300 | [diff] [blame] | 1346 | break; |
| 1347 | case DTV_TRANSMISSION_MODE: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1348 | tvp->u.data = c->transmission_mode; |
Steven Toth | b87625f | 2008-10-06 21:56:59 -0300 | [diff] [blame] | 1349 | break; |
Steven Toth | ef526f4 | 2008-10-06 22:01:47 -0300 | [diff] [blame] | 1350 | case DTV_HIERARCHY: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1351 | tvp->u.data = c->hierarchy; |
Steven Toth | ef526f4 | 2008-10-06 22:01:47 -0300 | [diff] [blame] | 1352 | break; |
Antti Palosaari | 224b664 | 2012-08-12 22:33:21 -0300 | [diff] [blame] | 1353 | case DTV_INTERLEAVING: |
| 1354 | tvp->u.data = c->interleaving; |
| 1355 | break; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1356 | |
| 1357 | /* ISDB-T Support here */ |
| 1358 | case DTV_ISDBT_PARTIAL_RECEPTION: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1359 | tvp->u.data = c->isdbt_partial_reception; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1360 | break; |
| 1361 | case DTV_ISDBT_SOUND_BROADCASTING: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1362 | tvp->u.data = c->isdbt_sb_mode; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1363 | break; |
| 1364 | case DTV_ISDBT_SB_SUBCHANNEL_ID: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1365 | tvp->u.data = c->isdbt_sb_subchannel; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1366 | break; |
| 1367 | case DTV_ISDBT_SB_SEGMENT_IDX: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1368 | tvp->u.data = c->isdbt_sb_segment_idx; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1369 | break; |
| 1370 | case DTV_ISDBT_SB_SEGMENT_COUNT: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1371 | tvp->u.data = c->isdbt_sb_segment_count; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1372 | break; |
Patrick Boettcher | e7b7949 | 2009-08-14 05:24:19 -0300 | [diff] [blame] | 1373 | case DTV_ISDBT_LAYER_ENABLED: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1374 | tvp->u.data = c->isdbt_layer_enabled; |
Patrick Boettcher | e7b7949 | 2009-08-14 05:24:19 -0300 | [diff] [blame] | 1375 | break; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1376 | case DTV_ISDBT_LAYERA_FEC: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1377 | tvp->u.data = c->layer[0].fec; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1378 | break; |
| 1379 | case DTV_ISDBT_LAYERA_MODULATION: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1380 | tvp->u.data = c->layer[0].modulation; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1381 | break; |
| 1382 | case DTV_ISDBT_LAYERA_SEGMENT_COUNT: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1383 | tvp->u.data = c->layer[0].segment_count; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1384 | break; |
| 1385 | case DTV_ISDBT_LAYERA_TIME_INTERLEAVING: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1386 | tvp->u.data = c->layer[0].interleaving; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1387 | break; |
| 1388 | case DTV_ISDBT_LAYERB_FEC: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1389 | tvp->u.data = c->layer[1].fec; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1390 | break; |
| 1391 | case DTV_ISDBT_LAYERB_MODULATION: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1392 | tvp->u.data = c->layer[1].modulation; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1393 | break; |
| 1394 | case DTV_ISDBT_LAYERB_SEGMENT_COUNT: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1395 | tvp->u.data = c->layer[1].segment_count; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1396 | break; |
| 1397 | case DTV_ISDBT_LAYERB_TIME_INTERLEAVING: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1398 | tvp->u.data = c->layer[1].interleaving; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1399 | break; |
| 1400 | case DTV_ISDBT_LAYERC_FEC: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1401 | tvp->u.data = c->layer[2].fec; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1402 | break; |
| 1403 | case DTV_ISDBT_LAYERC_MODULATION: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1404 | tvp->u.data = c->layer[2].modulation; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1405 | break; |
| 1406 | case DTV_ISDBT_LAYERC_SEGMENT_COUNT: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1407 | tvp->u.data = c->layer[2].segment_count; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1408 | break; |
| 1409 | case DTV_ISDBT_LAYERC_TIME_INTERLEAVING: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1410 | tvp->u.data = c->layer[2].interleaving; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1411 | break; |
Evgeny Plehov | 287cefd | 2012-09-13 10:13:30 -0300 | [diff] [blame] | 1412 | |
| 1413 | /* Multistream support */ |
| 1414 | case DTV_STREAM_ID: |
| 1415 | case DTV_DVBT2_PLP_ID_LEGACY: |
| 1416 | tvp->u.data = c->stream_id; |
Andreas Oberritter | 94d56ff | 2011-05-12 18:11:06 -0300 | [diff] [blame] | 1417 | break; |
Michael Krufky | ca68948 | 2012-01-29 15:44:58 -0300 | [diff] [blame] | 1418 | |
| 1419 | /* ATSC-MH */ |
| 1420 | case DTV_ATSCMH_FIC_VER: |
| 1421 | tvp->u.data = fe->dtv_property_cache.atscmh_fic_ver; |
| 1422 | break; |
| 1423 | case DTV_ATSCMH_PARADE_ID: |
| 1424 | tvp->u.data = fe->dtv_property_cache.atscmh_parade_id; |
| 1425 | break; |
| 1426 | case DTV_ATSCMH_NOG: |
| 1427 | tvp->u.data = fe->dtv_property_cache.atscmh_nog; |
| 1428 | break; |
| 1429 | case DTV_ATSCMH_TNOG: |
| 1430 | tvp->u.data = fe->dtv_property_cache.atscmh_tnog; |
| 1431 | break; |
| 1432 | case DTV_ATSCMH_SGN: |
| 1433 | tvp->u.data = fe->dtv_property_cache.atscmh_sgn; |
| 1434 | break; |
| 1435 | case DTV_ATSCMH_PRC: |
| 1436 | tvp->u.data = fe->dtv_property_cache.atscmh_prc; |
| 1437 | break; |
| 1438 | case DTV_ATSCMH_RS_FRAME_MODE: |
| 1439 | tvp->u.data = fe->dtv_property_cache.atscmh_rs_frame_mode; |
| 1440 | break; |
| 1441 | case DTV_ATSCMH_RS_FRAME_ENSEMBLE: |
| 1442 | tvp->u.data = fe->dtv_property_cache.atscmh_rs_frame_ensemble; |
| 1443 | break; |
| 1444 | case DTV_ATSCMH_RS_CODE_MODE_PRI: |
| 1445 | tvp->u.data = fe->dtv_property_cache.atscmh_rs_code_mode_pri; |
| 1446 | break; |
| 1447 | case DTV_ATSCMH_RS_CODE_MODE_SEC: |
| 1448 | tvp->u.data = fe->dtv_property_cache.atscmh_rs_code_mode_sec; |
| 1449 | break; |
| 1450 | case DTV_ATSCMH_SCCC_BLOCK_MODE: |
| 1451 | tvp->u.data = fe->dtv_property_cache.atscmh_sccc_block_mode; |
| 1452 | break; |
| 1453 | case DTV_ATSCMH_SCCC_CODE_MODE_A: |
| 1454 | tvp->u.data = fe->dtv_property_cache.atscmh_sccc_code_mode_a; |
| 1455 | break; |
| 1456 | case DTV_ATSCMH_SCCC_CODE_MODE_B: |
| 1457 | tvp->u.data = fe->dtv_property_cache.atscmh_sccc_code_mode_b; |
| 1458 | break; |
| 1459 | case DTV_ATSCMH_SCCC_CODE_MODE_C: |
| 1460 | tvp->u.data = fe->dtv_property_cache.atscmh_sccc_code_mode_c; |
| 1461 | break; |
| 1462 | case DTV_ATSCMH_SCCC_CODE_MODE_D: |
| 1463 | tvp->u.data = fe->dtv_property_cache.atscmh_sccc_code_mode_d; |
| 1464 | break; |
Michael Krufky | ca68948 | 2012-01-29 15:44:58 -0300 | [diff] [blame] | 1465 | |
Antti Palosaari | 33eebec | 2012-10-03 04:28:56 -0300 | [diff] [blame] | 1466 | case DTV_LNA: |
| 1467 | tvp->u.data = c->lna; |
| 1468 | break; |
| 1469 | |
Mauro Carvalho Chehab | 7cd4ece | 2013-01-07 15:41:35 -0300 | [diff] [blame] | 1470 | /* Fill quality measures */ |
| 1471 | case DTV_STAT_SIGNAL_STRENGTH: |
| 1472 | tvp->u.st = c->strength; |
| 1473 | break; |
| 1474 | case DTV_STAT_CNR: |
| 1475 | tvp->u.st = c->cnr; |
| 1476 | break; |
| 1477 | case DTV_STAT_PRE_ERROR_BIT_COUNT: |
| 1478 | tvp->u.st = c->pre_bit_error; |
| 1479 | break; |
| 1480 | case DTV_STAT_PRE_TOTAL_BIT_COUNT: |
| 1481 | tvp->u.st = c->pre_bit_count; |
| 1482 | break; |
| 1483 | case DTV_STAT_POST_ERROR_BIT_COUNT: |
| 1484 | tvp->u.st = c->post_bit_error; |
| 1485 | break; |
| 1486 | case DTV_STAT_POST_TOTAL_BIT_COUNT: |
| 1487 | tvp->u.st = c->post_bit_count; |
| 1488 | break; |
| 1489 | case DTV_STAT_ERROR_BLOCK_COUNT: |
| 1490 | tvp->u.st = c->block_error; |
| 1491 | break; |
| 1492 | case DTV_STAT_TOTAL_BLOCK_COUNT: |
| 1493 | tvp->u.st = c->block_count; |
| 1494 | break; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1495 | default: |
Mauro Carvalho Chehab | 94a93e5 | 2013-01-23 17:06:02 -0300 | [diff] [blame] | 1496 | dev_dbg(fe->dvb->device, |
| 1497 | "%s: FE property %d doesn't exist\n", |
| 1498 | __func__, tvp->cmd); |
Andreas Oberritter | aff8ab5 | 2011-05-09 00:03:34 +0100 | [diff] [blame] | 1499 | return -EINVAL; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1500 | } |
| 1501 | |
Andreas Oberritter | e23d9ae | 2011-05-08 20:03:36 -0300 | [diff] [blame] | 1502 | /* Allow the frontend to override outgoing properties */ |
| 1503 | if (fe->ops.get_property) { |
| 1504 | r = fe->ops.get_property(fe, tvp); |
| 1505 | if (r < 0) |
| 1506 | return r; |
| 1507 | } |
| 1508 | |
Mauro Carvalho Chehab | c29ebb6 | 2016-02-03 17:29:41 -0200 | [diff] [blame] | 1509 | dtv_property_dump(fe, false, tvp); |
Mauro Carvalho Chehab | 639544d | 2009-12-31 17:49:32 -0300 | [diff] [blame] | 1510 | |
Andreas Oberritter | aff8ab5 | 2011-05-09 00:03:34 +0100 | [diff] [blame] | 1511 | return 0; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1512 | } |
| 1513 | |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 1514 | static int dtv_set_frontend(struct dvb_frontend *fe); |
| 1515 | |
Mauro Carvalho Chehab | 04be0f7 | 2012-01-01 16:11:14 -0300 | [diff] [blame] | 1516 | static bool is_dvbv3_delsys(u32 delsys) |
| 1517 | { |
| 1518 | bool status; |
| 1519 | |
| 1520 | status = (delsys == SYS_DVBT) || (delsys == SYS_DVBC_ANNEX_A) || |
| 1521 | (delsys == SYS_DVBS) || (delsys == SYS_ATSC); |
| 1522 | |
| 1523 | return status; |
| 1524 | } |
| 1525 | |
Mauro Carvalho Chehab | 52dee39 | 2013-03-18 15:25:37 -0300 | [diff] [blame] | 1526 | /** |
| 1527 | * emulate_delivery_system - emulate a DVBv5 delivery system with a DVBv3 type |
| 1528 | * @fe: struct frontend; |
| 1529 | * @delsys: DVBv5 type that will be used for emulation |
| 1530 | * |
| 1531 | * Provides emulation for delivery systems that are compatible with the old |
| 1532 | * DVBv3 call. Among its usages, it provices support for ISDB-T, and allows |
| 1533 | * using a DVB-S2 only frontend just like it were a DVB-S, if the frontent |
| 1534 | * parameters are compatible with DVB-S spec. |
| 1535 | */ |
| 1536 | static int emulate_delivery_system(struct dvb_frontend *fe, u32 delsys) |
Mauro Carvalho Chehab | 04be0f7 | 2012-01-01 16:11:14 -0300 | [diff] [blame] | 1537 | { |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 1538 | int i; |
Mauro Carvalho Chehab | 04be0f7 | 2012-01-01 16:11:14 -0300 | [diff] [blame] | 1539 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
Mauro Carvalho Chehab | 04be0f7 | 2012-01-01 16:11:14 -0300 | [diff] [blame] | 1540 | |
Mauro Carvalho Chehab | 3626479 | 2012-04-17 18:32:19 -0300 | [diff] [blame] | 1541 | c->delivery_system = delsys; |
| 1542 | |
Mauro Carvalho Chehab | 04be0f7 | 2012-01-01 16:11:14 -0300 | [diff] [blame] | 1543 | /* |
Mauro Carvalho Chehab | 52dee39 | 2013-03-18 15:25:37 -0300 | [diff] [blame] | 1544 | * If the call is for ISDB-T, put it into full-seg, auto mode, TV |
Mauro Carvalho Chehab | 04be0f7 | 2012-01-01 16:11:14 -0300 | [diff] [blame] | 1545 | */ |
Mauro Carvalho Chehab | 52dee39 | 2013-03-18 15:25:37 -0300 | [diff] [blame] | 1546 | if (c->delivery_system == SYS_ISDBT) { |
| 1547 | dev_dbg(fe->dvb->device, |
| 1548 | "%s: Using defaults for SYS_ISDBT\n", |
| 1549 | __func__); |
Mauro Carvalho Chehab | 04be0f7 | 2012-01-01 16:11:14 -0300 | [diff] [blame] | 1550 | |
Mauro Carvalho Chehab | 52dee39 | 2013-03-18 15:25:37 -0300 | [diff] [blame] | 1551 | if (!c->bandwidth_hz) |
| 1552 | c->bandwidth_hz = 6000000; |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 1553 | |
Mauro Carvalho Chehab | 52dee39 | 2013-03-18 15:25:37 -0300 | [diff] [blame] | 1554 | c->isdbt_partial_reception = 0; |
| 1555 | c->isdbt_sb_mode = 0; |
| 1556 | c->isdbt_sb_subchannel = 0; |
| 1557 | c->isdbt_sb_segment_idx = 0; |
| 1558 | c->isdbt_sb_segment_count = 0; |
| 1559 | c->isdbt_layer_enabled = 7; |
| 1560 | for (i = 0; i < 3; i++) { |
| 1561 | c->layer[i].fec = FEC_AUTO; |
| 1562 | c->layer[i].modulation = QAM_AUTO; |
| 1563 | c->layer[i].interleaving = 0; |
| 1564 | c->layer[i].segment_count = 0; |
Mauro Carvalho Chehab | 04be0f7 | 2012-01-01 16:11:14 -0300 | [diff] [blame] | 1565 | } |
| 1566 | } |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 1567 | dev_dbg(fe->dvb->device, "%s: change delivery system on cache to %d\n", |
Mauro Carvalho Chehab | 52dee39 | 2013-03-18 15:25:37 -0300 | [diff] [blame] | 1568 | __func__, c->delivery_system); |
Mauro Carvalho Chehab | 9474c5e | 2012-01-05 12:28:20 -0200 | [diff] [blame] | 1569 | |
Mauro Carvalho Chehab | 04be0f7 | 2012-01-01 16:11:14 -0300 | [diff] [blame] | 1570 | return 0; |
| 1571 | } |
| 1572 | |
Mauro Carvalho Chehab | 52dee39 | 2013-03-18 15:25:37 -0300 | [diff] [blame] | 1573 | /** |
| 1574 | * dvbv5_set_delivery_system - Sets the delivery system for a DVBv5 API call |
| 1575 | * @fe: frontend struct |
| 1576 | * @desired_system: delivery system requested by the user |
| 1577 | * |
| 1578 | * A DVBv5 call know what's the desired system it wants. So, set it. |
| 1579 | * |
| 1580 | * There are, however, a few known issues with early DVBv5 applications that |
| 1581 | * are also handled by this logic: |
| 1582 | * |
| 1583 | * 1) Some early apps use SYS_UNDEFINED as the desired delivery system. |
| 1584 | * This is an API violation, but, as we don't want to break userspace, |
| 1585 | * convert it to the first supported delivery system. |
| 1586 | * 2) Some apps might be using a DVBv5 call in a wrong way, passing, for |
| 1587 | * example, SYS_DVBT instead of SYS_ISDBT. This is because early usage of |
| 1588 | * ISDB-T provided backward compat with DVB-T. |
| 1589 | */ |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 1590 | static int dvbv5_set_delivery_system(struct dvb_frontend *fe, |
| 1591 | u32 desired_system) |
| 1592 | { |
| 1593 | int ncaps; |
| 1594 | u32 delsys = SYS_UNDEFINED; |
| 1595 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
| 1596 | enum dvbv3_emulation_type type; |
| 1597 | |
| 1598 | /* |
| 1599 | * It was reported that some old DVBv5 applications were |
| 1600 | * filling delivery_system with SYS_UNDEFINED. If this happens, |
| 1601 | * assume that the application wants to use the first supported |
| 1602 | * delivery system. |
| 1603 | */ |
Mauro Carvalho Chehab | 52dee39 | 2013-03-18 15:25:37 -0300 | [diff] [blame] | 1604 | if (desired_system == SYS_UNDEFINED) |
| 1605 | desired_system = fe->ops.delsys[0]; |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 1606 | |
| 1607 | /* |
Mauro Carvalho Chehab | 52dee39 | 2013-03-18 15:25:37 -0300 | [diff] [blame] | 1608 | * This is a DVBv5 call. So, it likely knows the supported |
| 1609 | * delivery systems. So, check if the desired delivery system is |
| 1610 | * supported |
| 1611 | */ |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 1612 | ncaps = 0; |
Ole Ernst | 0123f29 | 2014-03-05 14:08:15 -0300 | [diff] [blame] | 1613 | while (ncaps < MAX_DELSYS && fe->ops.delsys[ncaps]) { |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 1614 | if (fe->ops.delsys[ncaps] == desired_system) { |
| 1615 | c->delivery_system = desired_system; |
| 1616 | dev_dbg(fe->dvb->device, |
| 1617 | "%s: Changing delivery system to %d\n", |
| 1618 | __func__, desired_system); |
| 1619 | return 0; |
| 1620 | } |
| 1621 | ncaps++; |
| 1622 | } |
| 1623 | |
| 1624 | /* |
Mauro Carvalho Chehab | 52dee39 | 2013-03-18 15:25:37 -0300 | [diff] [blame] | 1625 | * The requested delivery system isn't supported. Maybe userspace |
| 1626 | * is requesting a DVBv3 compatible delivery system. |
| 1627 | * |
| 1628 | * The emulation only works if the desired system is one of the |
| 1629 | * delivery systems supported by DVBv3 API |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 1630 | */ |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 1631 | if (!is_dvbv3_delsys(desired_system)) { |
| 1632 | dev_dbg(fe->dvb->device, |
Mauro Carvalho Chehab | 52dee39 | 2013-03-18 15:25:37 -0300 | [diff] [blame] | 1633 | "%s: Delivery system %d not supported.\n", |
| 1634 | __func__, desired_system); |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 1635 | return -EINVAL; |
| 1636 | } |
| 1637 | |
Mauro Carvalho Chehab | 52dee39 | 2013-03-18 15:25:37 -0300 | [diff] [blame] | 1638 | type = dvbv3_type(desired_system); |
| 1639 | |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 1640 | /* |
| 1641 | * Get the last non-DVBv3 delivery system that has the same type |
| 1642 | * of the desired system |
| 1643 | */ |
| 1644 | ncaps = 0; |
Ole Ernst | 0123f29 | 2014-03-05 14:08:15 -0300 | [diff] [blame] | 1645 | while (ncaps < MAX_DELSYS && fe->ops.delsys[ncaps]) { |
Mauro Carvalho Chehab | 52dee39 | 2013-03-18 15:25:37 -0300 | [diff] [blame] | 1646 | if (dvbv3_type(fe->ops.delsys[ncaps]) == type) |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 1647 | delsys = fe->ops.delsys[ncaps]; |
| 1648 | ncaps++; |
| 1649 | } |
Mauro Carvalho Chehab | 52dee39 | 2013-03-18 15:25:37 -0300 | [diff] [blame] | 1650 | |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 1651 | /* There's nothing compatible with the desired delivery system */ |
| 1652 | if (delsys == SYS_UNDEFINED) { |
| 1653 | dev_dbg(fe->dvb->device, |
Mauro Carvalho Chehab | 52dee39 | 2013-03-18 15:25:37 -0300 | [diff] [blame] | 1654 | "%s: Delivery system %d not supported on emulation mode.\n", |
| 1655 | __func__, desired_system); |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 1656 | return -EINVAL; |
| 1657 | } |
| 1658 | |
Mauro Carvalho Chehab | 52dee39 | 2013-03-18 15:25:37 -0300 | [diff] [blame] | 1659 | dev_dbg(fe->dvb->device, |
| 1660 | "%s: Using delivery system %d emulated as if it were %d\n", |
| 1661 | __func__, delsys, desired_system); |
| 1662 | |
| 1663 | return emulate_delivery_system(fe, desired_system); |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 1664 | } |
| 1665 | |
Mauro Carvalho Chehab | 52dee39 | 2013-03-18 15:25:37 -0300 | [diff] [blame] | 1666 | /** |
| 1667 | * dvbv3_set_delivery_system - Sets the delivery system for a DVBv3 API call |
| 1668 | * @fe: frontend struct |
| 1669 | * |
| 1670 | * A DVBv3 call doesn't know what's the desired system it wants. It also |
| 1671 | * doesn't allow to switch between different types. Due to that, userspace |
| 1672 | * should use DVBv5 instead. |
| 1673 | * However, in order to avoid breaking userspace API, limited backward |
| 1674 | * compatibility support is provided. |
| 1675 | * |
| 1676 | * There are some delivery systems that are incompatible with DVBv3 calls. |
| 1677 | * |
| 1678 | * This routine should work fine for frontends that support just one delivery |
| 1679 | * system. |
| 1680 | * |
| 1681 | * For frontends that support multiple frontends: |
| 1682 | * 1) It defaults to use the first supported delivery system. There's an |
| 1683 | * userspace application that allows changing it at runtime; |
| 1684 | * |
| 1685 | * 2) If the current delivery system is not compatible with DVBv3, it gets |
| 1686 | * the first one that it is compatible. |
| 1687 | * |
| 1688 | * NOTE: in order for this to work with applications like Kaffeine that |
| 1689 | * uses a DVBv5 call for DVB-S2 and a DVBv3 call to go back to |
| 1690 | * DVB-S, drivers that support both DVB-S and DVB-S2 should have the |
| 1691 | * SYS_DVBS entry before the SYS_DVBS2, otherwise it won't switch back |
| 1692 | * to DVB-S. |
| 1693 | */ |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 1694 | static int dvbv3_set_delivery_system(struct dvb_frontend *fe) |
| 1695 | { |
| 1696 | int ncaps; |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 1697 | u32 delsys = SYS_UNDEFINED; |
| 1698 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 1699 | |
| 1700 | /* If not set yet, defaults to the first supported delivery system */ |
| 1701 | if (c->delivery_system == SYS_UNDEFINED) |
| 1702 | c->delivery_system = fe->ops.delsys[0]; |
| 1703 | |
| 1704 | /* |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 1705 | * Trivial case: just use the current one, if it already a DVBv3 |
| 1706 | * delivery system |
| 1707 | */ |
| 1708 | if (is_dvbv3_delsys(c->delivery_system)) { |
| 1709 | dev_dbg(fe->dvb->device, |
| 1710 | "%s: Using delivery system to %d\n", |
| 1711 | __func__, c->delivery_system); |
| 1712 | return 0; |
| 1713 | } |
| 1714 | |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 1715 | /* |
Mauro Carvalho Chehab | 52dee39 | 2013-03-18 15:25:37 -0300 | [diff] [blame] | 1716 | * Seek for the first delivery system that it is compatible with a |
| 1717 | * DVBv3 standard |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 1718 | */ |
| 1719 | ncaps = 0; |
Ole Ernst | 0123f29 | 2014-03-05 14:08:15 -0300 | [diff] [blame] | 1720 | while (ncaps < MAX_DELSYS && fe->ops.delsys[ncaps]) { |
Mauro Carvalho Chehab | 52dee39 | 2013-03-18 15:25:37 -0300 | [diff] [blame] | 1721 | if (dvbv3_type(fe->ops.delsys[ncaps]) != DVBV3_UNKNOWN) { |
| 1722 | delsys = fe->ops.delsys[ncaps]; |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 1723 | break; |
| 1724 | } |
| 1725 | ncaps++; |
| 1726 | } |
| 1727 | if (delsys == SYS_UNDEFINED) { |
Mauro Carvalho Chehab | 52dee39 | 2013-03-18 15:25:37 -0300 | [diff] [blame] | 1728 | dev_dbg(fe->dvb->device, |
| 1729 | "%s: Couldn't find a delivery system that works with FE_SET_FRONTEND\n", |
| 1730 | __func__); |
| 1731 | return -EINVAL; |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 1732 | } |
Mauro Carvalho Chehab | 52dee39 | 2013-03-18 15:25:37 -0300 | [diff] [blame] | 1733 | return emulate_delivery_system(fe, delsys); |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 1734 | } |
| 1735 | |
Mauro Carvalho Chehab | 072ce0c | 2009-01-05 01:19:06 -0300 | [diff] [blame] | 1736 | static int dtv_property_process_set(struct dvb_frontend *fe, |
| 1737 | struct dtv_property *tvp, |
Mauro Carvalho Chehab | 072ce0c | 2009-01-05 01:19:06 -0300 | [diff] [blame] | 1738 | struct file *file) |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1739 | { |
| 1740 | int r = 0; |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1741 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1742 | |
Steven Toth | bfbf2da | 2008-09-12 01:37:37 -0300 | [diff] [blame] | 1743 | /* Allow the frontend to validate incoming properties */ |
Andreas Oberritter | aff8ab5 | 2011-05-09 00:03:34 +0100 | [diff] [blame] | 1744 | if (fe->ops.set_property) { |
Steven Toth | bfbf2da | 2008-09-12 01:37:37 -0300 | [diff] [blame] | 1745 | r = fe->ops.set_property(fe, tvp); |
Andreas Oberritter | aff8ab5 | 2011-05-09 00:03:34 +0100 | [diff] [blame] | 1746 | if (r < 0) |
| 1747 | return r; |
| 1748 | } |
Steven Toth | bfbf2da | 2008-09-12 01:37:37 -0300 | [diff] [blame] | 1749 | |
Mauro Carvalho Chehab | c29ebb6 | 2016-02-03 17:29:41 -0200 | [diff] [blame] | 1750 | dtv_property_dump(fe, true, tvp); |
| 1751 | |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1752 | switch(tvp->cmd) { |
Steven Toth | e7fee0f3 | 2008-09-11 10:23:01 -0300 | [diff] [blame] | 1753 | case DTV_CLEAR: |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 1754 | /* |
| 1755 | * Reset a cache of data specific to the frontend here. This does |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1756 | * not effect hardware. |
| 1757 | */ |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1758 | dvb_frontend_clear_cache(fe); |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1759 | break; |
Steven Toth | e7fee0f3 | 2008-09-11 10:23:01 -0300 | [diff] [blame] | 1760 | case DTV_TUNE: |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1761 | /* interpret the cache of data, build either a traditional frontend |
Steven Toth | d5748f1 | 2008-09-12 00:27:13 -0300 | [diff] [blame] | 1762 | * tunerequest so we can pass validation in the FE_SET_FRONTEND |
| 1763 | * ioctl. |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1764 | */ |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1765 | c->state = tvp->cmd; |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 1766 | dev_dbg(fe->dvb->device, "%s: Finalised property cache\n", |
| 1767 | __func__); |
Steven Toth | d5748f1 | 2008-09-12 00:27:13 -0300 | [diff] [blame] | 1768 | |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 1769 | r = dtv_set_frontend(fe); |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1770 | break; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1771 | case DTV_FREQUENCY: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1772 | c->frequency = tvp->u.data; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1773 | break; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1774 | case DTV_MODULATION: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1775 | c->modulation = tvp->u.data; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1776 | break; |
Steven Toth | 75b7f94 | 2008-09-13 16:56:34 -0300 | [diff] [blame] | 1777 | case DTV_BANDWIDTH_HZ: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1778 | c->bandwidth_hz = tvp->u.data; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1779 | break; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1780 | case DTV_INVERSION: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1781 | c->inversion = tvp->u.data; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1782 | break; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1783 | case DTV_SYMBOL_RATE: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1784 | c->symbol_rate = tvp->u.data; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1785 | break; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1786 | case DTV_INNER_FEC: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1787 | c->fec_inner = tvp->u.data; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1788 | break; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1789 | case DTV_PILOT: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1790 | c->pilot = tvp->u.data; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1791 | break; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1792 | case DTV_ROLLOFF: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1793 | c->rolloff = tvp->u.data; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1794 | break; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1795 | case DTV_DELIVERY_SYSTEM: |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 1796 | r = dvbv5_set_delivery_system(fe, tvp->u.data); |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1797 | break; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1798 | case DTV_VOLTAGE: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1799 | c->voltage = tvp->u.data; |
Arnd Bergmann | 16ef8de | 2010-04-27 00:24:00 +0200 | [diff] [blame] | 1800 | r = dvb_frontend_ioctl_legacy(file, FE_SET_VOLTAGE, |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1801 | (void *)c->voltage); |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1802 | break; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1803 | case DTV_TONE: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1804 | c->sectone = tvp->u.data; |
Arnd Bergmann | 16ef8de | 2010-04-27 00:24:00 +0200 | [diff] [blame] | 1805 | r = dvb_frontend_ioctl_legacy(file, FE_SET_TONE, |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1806 | (void *)c->sectone); |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1807 | break; |
Steven Toth | a4de91b | 2008-10-06 21:55:46 -0300 | [diff] [blame] | 1808 | case DTV_CODE_RATE_HP: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1809 | c->code_rate_HP = tvp->u.data; |
Steven Toth | a4de91b | 2008-10-06 21:55:46 -0300 | [diff] [blame] | 1810 | break; |
| 1811 | case DTV_CODE_RATE_LP: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1812 | c->code_rate_LP = tvp->u.data; |
Steven Toth | a4de91b | 2008-10-06 21:55:46 -0300 | [diff] [blame] | 1813 | break; |
Steven Toth | b87625f | 2008-10-06 21:56:59 -0300 | [diff] [blame] | 1814 | case DTV_GUARD_INTERVAL: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1815 | c->guard_interval = tvp->u.data; |
Steven Toth | b87625f | 2008-10-06 21:56:59 -0300 | [diff] [blame] | 1816 | break; |
| 1817 | case DTV_TRANSMISSION_MODE: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1818 | c->transmission_mode = tvp->u.data; |
Steven Toth | b87625f | 2008-10-06 21:56:59 -0300 | [diff] [blame] | 1819 | break; |
Steven Toth | ef526f4 | 2008-10-06 22:01:47 -0300 | [diff] [blame] | 1820 | case DTV_HIERARCHY: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1821 | c->hierarchy = tvp->u.data; |
Steven Toth | ef526f4 | 2008-10-06 22:01:47 -0300 | [diff] [blame] | 1822 | break; |
Antti Palosaari | 224b664 | 2012-08-12 22:33:21 -0300 | [diff] [blame] | 1823 | case DTV_INTERLEAVING: |
| 1824 | c->interleaving = tvp->u.data; |
| 1825 | break; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1826 | |
| 1827 | /* ISDB-T Support here */ |
| 1828 | case DTV_ISDBT_PARTIAL_RECEPTION: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1829 | c->isdbt_partial_reception = tvp->u.data; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1830 | break; |
| 1831 | case DTV_ISDBT_SOUND_BROADCASTING: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1832 | c->isdbt_sb_mode = tvp->u.data; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1833 | break; |
| 1834 | case DTV_ISDBT_SB_SUBCHANNEL_ID: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1835 | c->isdbt_sb_subchannel = tvp->u.data; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1836 | break; |
| 1837 | case DTV_ISDBT_SB_SEGMENT_IDX: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1838 | c->isdbt_sb_segment_idx = tvp->u.data; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1839 | break; |
| 1840 | case DTV_ISDBT_SB_SEGMENT_COUNT: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1841 | c->isdbt_sb_segment_count = tvp->u.data; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1842 | break; |
Patrick Boettcher | e7b7949 | 2009-08-14 05:24:19 -0300 | [diff] [blame] | 1843 | case DTV_ISDBT_LAYER_ENABLED: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1844 | c->isdbt_layer_enabled = tvp->u.data; |
Patrick Boettcher | e7b7949 | 2009-08-14 05:24:19 -0300 | [diff] [blame] | 1845 | break; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1846 | case DTV_ISDBT_LAYERA_FEC: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1847 | c->layer[0].fec = tvp->u.data; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1848 | break; |
| 1849 | case DTV_ISDBT_LAYERA_MODULATION: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1850 | c->layer[0].modulation = tvp->u.data; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1851 | break; |
| 1852 | case DTV_ISDBT_LAYERA_SEGMENT_COUNT: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1853 | c->layer[0].segment_count = tvp->u.data; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1854 | break; |
| 1855 | case DTV_ISDBT_LAYERA_TIME_INTERLEAVING: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1856 | c->layer[0].interleaving = tvp->u.data; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1857 | break; |
| 1858 | case DTV_ISDBT_LAYERB_FEC: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1859 | c->layer[1].fec = tvp->u.data; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1860 | break; |
| 1861 | case DTV_ISDBT_LAYERB_MODULATION: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1862 | c->layer[1].modulation = tvp->u.data; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1863 | break; |
| 1864 | case DTV_ISDBT_LAYERB_SEGMENT_COUNT: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1865 | c->layer[1].segment_count = tvp->u.data; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1866 | break; |
| 1867 | case DTV_ISDBT_LAYERB_TIME_INTERLEAVING: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1868 | c->layer[1].interleaving = tvp->u.data; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1869 | break; |
| 1870 | case DTV_ISDBT_LAYERC_FEC: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1871 | c->layer[2].fec = tvp->u.data; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1872 | break; |
| 1873 | case DTV_ISDBT_LAYERC_MODULATION: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1874 | c->layer[2].modulation = tvp->u.data; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1875 | break; |
| 1876 | case DTV_ISDBT_LAYERC_SEGMENT_COUNT: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1877 | c->layer[2].segment_count = tvp->u.data; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1878 | break; |
| 1879 | case DTV_ISDBT_LAYERC_TIME_INTERLEAVING: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1880 | c->layer[2].interleaving = tvp->u.data; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1881 | break; |
Evgeny Plehov | 287cefd | 2012-09-13 10:13:30 -0300 | [diff] [blame] | 1882 | |
| 1883 | /* Multistream support */ |
| 1884 | case DTV_STREAM_ID: |
| 1885 | case DTV_DVBT2_PLP_ID_LEGACY: |
| 1886 | c->stream_id = tvp->u.data; |
Andreas Oberritter | 94d56ff | 2011-05-12 18:11:06 -0300 | [diff] [blame] | 1887 | break; |
Michael Krufky | ca68948 | 2012-01-29 15:44:58 -0300 | [diff] [blame] | 1888 | |
| 1889 | /* ATSC-MH */ |
| 1890 | case DTV_ATSCMH_PARADE_ID: |
| 1891 | fe->dtv_property_cache.atscmh_parade_id = tvp->u.data; |
| 1892 | break; |
| 1893 | case DTV_ATSCMH_RS_FRAME_ENSEMBLE: |
| 1894 | fe->dtv_property_cache.atscmh_rs_frame_ensemble = tvp->u.data; |
| 1895 | break; |
| 1896 | |
Antti Palosaari | 33eebec | 2012-10-03 04:28:56 -0300 | [diff] [blame] | 1897 | case DTV_LNA: |
| 1898 | c->lna = tvp->u.data; |
| 1899 | if (fe->ops.set_lna) |
| 1900 | r = fe->ops.set_lna(fe); |
Mauro Carvalho Chehab | e687669 | 2014-02-16 06:36:17 -0300 | [diff] [blame] | 1901 | if (r < 0) |
| 1902 | c->lna = LNA_AUTO; |
Antti Palosaari | 33eebec | 2012-10-03 04:28:56 -0300 | [diff] [blame] | 1903 | break; |
| 1904 | |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1905 | default: |
Andreas Oberritter | aff8ab5 | 2011-05-09 00:03:34 +0100 | [diff] [blame] | 1906 | return -EINVAL; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1907 | } |
| 1908 | |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1909 | return r; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1910 | } |
| 1911 | |
Arnd Bergmann | 16ef8de | 2010-04-27 00:24:00 +0200 | [diff] [blame] | 1912 | static int dvb_frontend_ioctl(struct file *file, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1913 | unsigned int cmd, void *parg) |
| 1914 | { |
| 1915 | struct dvb_device *dvbdev = file->private_data; |
| 1916 | struct dvb_frontend *fe = dvbdev->priv; |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1917 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 1918 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Mauro Carvalho Chehab | ac89758 | 2013-02-15 13:39:31 -0200 | [diff] [blame] | 1919 | int err = -EOPNOTSUPP; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1920 | |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 1921 | dev_dbg(fe->dvb->device, "%s: (%d)\n", __func__, _IOC_NR(cmd)); |
Juergen Lock | 6ae2322 | 2012-12-23 17:23:06 -0300 | [diff] [blame] | 1922 | if (down_interruptible(&fepriv->sem)) |
| 1923 | return -ERESTARTSYS; |
| 1924 | |
Shuah Khan | 18ed286 | 2014-07-12 13:44:12 -0300 | [diff] [blame] | 1925 | if (fe->exit != DVB_FE_NO_EXIT) { |
Juergen Lock | 6ae2322 | 2012-12-23 17:23:06 -0300 | [diff] [blame] | 1926 | up(&fepriv->sem); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1927 | return -ENODEV; |
Juergen Lock | 6ae2322 | 2012-12-23 17:23:06 -0300 | [diff] [blame] | 1928 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1929 | |
| 1930 | if ((file->f_flags & O_ACCMODE) == O_RDONLY && |
| 1931 | (_IOC_DIR(cmd) != _IOC_READ || cmd == FE_GET_EVENT || |
Juergen Lock | 6ae2322 | 2012-12-23 17:23:06 -0300 | [diff] [blame] | 1932 | cmd == FE_DISEQC_RECV_SLAVE_REPLY)) { |
| 1933 | up(&fepriv->sem); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1934 | return -EPERM; |
Juergen Lock | 6ae2322 | 2012-12-23 17:23:06 -0300 | [diff] [blame] | 1935 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1936 | |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1937 | if ((cmd == FE_SET_PROPERTY) || (cmd == FE_GET_PROPERTY)) |
Arnd Bergmann | 16ef8de | 2010-04-27 00:24:00 +0200 | [diff] [blame] | 1938 | err = dvb_frontend_ioctl_properties(file, cmd, parg); |
Steven Toth | 4dd88be | 2008-09-13 15:09:07 -0300 | [diff] [blame] | 1939 | else { |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1940 | c->state = DTV_UNDEFINED; |
Arnd Bergmann | 16ef8de | 2010-04-27 00:24:00 +0200 | [diff] [blame] | 1941 | err = dvb_frontend_ioctl_legacy(file, cmd, parg); |
Steven Toth | 4dd88be | 2008-09-13 15:09:07 -0300 | [diff] [blame] | 1942 | } |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1943 | |
| 1944 | up(&fepriv->sem); |
| 1945 | return err; |
| 1946 | } |
| 1947 | |
Arnd Bergmann | 16ef8de | 2010-04-27 00:24:00 +0200 | [diff] [blame] | 1948 | static int dvb_frontend_ioctl_properties(struct file *file, |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1949 | unsigned int cmd, void *parg) |
| 1950 | { |
| 1951 | struct dvb_device *dvbdev = file->private_data; |
| 1952 | struct dvb_frontend *fe = dvbdev->priv; |
Mauro Carvalho Chehab | 51dcb19 | 2012-01-17 16:20:37 -0200 | [diff] [blame] | 1953 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1954 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
Igor M. Liplianin | e6f9ec8 | 2008-09-12 14:49:06 -0300 | [diff] [blame] | 1955 | int err = 0; |
Steven Toth | e7fee0f3 | 2008-09-11 10:23:01 -0300 | [diff] [blame] | 1956 | |
Mauro Carvalho Chehab | 71d1b2b | 2014-09-24 10:15:22 -0300 | [diff] [blame] | 1957 | struct dtv_properties *tvps = parg; |
Steven Toth | e7fee0f3 | 2008-09-11 10:23:01 -0300 | [diff] [blame] | 1958 | struct dtv_property *tvp = NULL; |
| 1959 | int i; |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1960 | |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 1961 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1962 | |
Mauro Carvalho Chehab | 71d1b2b | 2014-09-24 10:15:22 -0300 | [diff] [blame] | 1963 | if (cmd == FE_SET_PROPERTY) { |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 1964 | dev_dbg(fe->dvb->device, "%s: properties.num = %d\n", __func__, tvps->num); |
| 1965 | dev_dbg(fe->dvb->device, "%s: properties.props = %p\n", __func__, tvps->props); |
Steven Toth | e7fee0f3 | 2008-09-11 10:23:01 -0300 | [diff] [blame] | 1966 | |
| 1967 | /* Put an arbitrary limit on the number of messages that can |
| 1968 | * be sent at once */ |
Steven Toth | 6068f50 | 2008-10-06 22:46:08 -0300 | [diff] [blame] | 1969 | if ((tvps->num == 0) || (tvps->num > DTV_IOCTL_MAX_MSGS)) |
Steven Toth | e7fee0f3 | 2008-09-11 10:23:01 -0300 | [diff] [blame] | 1970 | return -EINVAL; |
| 1971 | |
Markus Elfring | fb66092 | 2016-08-19 05:04:54 -0300 | [diff] [blame] | 1972 | tvp = memdup_user(tvps->props, tvps->num * sizeof(*tvp)); |
| 1973 | if (IS_ERR(tvp)) |
| 1974 | return PTR_ERR(tvp); |
Steven Toth | e7fee0f3 | 2008-09-11 10:23:01 -0300 | [diff] [blame] | 1975 | |
Steven Toth | d48cb40 | 2008-09-26 00:16:25 -0300 | [diff] [blame] | 1976 | for (i = 0; i < tvps->num; i++) { |
Andreas Oberritter | aff8ab5 | 2011-05-09 00:03:34 +0100 | [diff] [blame] | 1977 | err = dtv_property_process_set(fe, tvp + i, file); |
| 1978 | if (err < 0) |
| 1979 | goto out; |
| 1980 | (tvp + i)->result = err; |
Steven Toth | d48cb40 | 2008-09-26 00:16:25 -0300 | [diff] [blame] | 1981 | } |
Steven Toth | e7fee0f3 | 2008-09-11 10:23:01 -0300 | [diff] [blame] | 1982 | |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1983 | if (c->state == DTV_TUNE) |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 1984 | dev_dbg(fe->dvb->device, "%s: Property cache is full, tuning\n", __func__); |
Steven Toth | bfbf2da | 2008-09-12 01:37:37 -0300 | [diff] [blame] | 1985 | |
Mauro Carvalho Chehab | 71d1b2b | 2014-09-24 10:15:22 -0300 | [diff] [blame] | 1986 | } else if (cmd == FE_GET_PROPERTY) { |
Mauro Carvalho Chehab | bb31d23 | 2016-02-04 13:26:22 -0200 | [diff] [blame] | 1987 | struct dtv_frontend_properties getp = fe->dtv_property_cache; |
| 1988 | |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 1989 | dev_dbg(fe->dvb->device, "%s: properties.num = %d\n", __func__, tvps->num); |
| 1990 | dev_dbg(fe->dvb->device, "%s: properties.props = %p\n", __func__, tvps->props); |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1991 | |
| 1992 | /* Put an arbitrary limit on the number of messages that can |
| 1993 | * be sent at once */ |
Steven Toth | 6068f50 | 2008-10-06 22:46:08 -0300 | [diff] [blame] | 1994 | if ((tvps->num == 0) || (tvps->num > DTV_IOCTL_MAX_MSGS)) |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1995 | return -EINVAL; |
| 1996 | |
Markus Elfring | fb66092 | 2016-08-19 05:04:54 -0300 | [diff] [blame] | 1997 | tvp = memdup_user(tvps->props, tvps->num * sizeof(*tvp)); |
| 1998 | if (IS_ERR(tvp)) |
| 1999 | return PTR_ERR(tvp); |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 2000 | |
Mauro Carvalho Chehab | a689e36 | 2011-12-22 14:47:48 -0300 | [diff] [blame] | 2001 | /* |
Mauro Carvalho Chehab | bb31d23 | 2016-02-04 13:26:22 -0200 | [diff] [blame] | 2002 | * Let's use our own copy of property cache, in order to |
| 2003 | * avoid mangling with DTV zigzag logic, as drivers might |
| 2004 | * return crap, if they don't check if the data is available |
| 2005 | * before updating the properties cache. |
Mauro Carvalho Chehab | a689e36 | 2011-12-22 14:47:48 -0300 | [diff] [blame] | 2006 | */ |
Mauro Carvalho Chehab | 51dcb19 | 2012-01-17 16:20:37 -0200 | [diff] [blame] | 2007 | if (fepriv->state != FESTATE_IDLE) { |
Mauro Carvalho Chehab | bb31d23 | 2016-02-04 13:26:22 -0200 | [diff] [blame] | 2008 | err = dtv_get_frontend(fe, &getp, NULL); |
Mauro Carvalho Chehab | 51dcb19 | 2012-01-17 16:20:37 -0200 | [diff] [blame] | 2009 | if (err < 0) |
| 2010 | goto out; |
| 2011 | } |
Steven Toth | d48cb40 | 2008-09-26 00:16:25 -0300 | [diff] [blame] | 2012 | for (i = 0; i < tvps->num; i++) { |
Mauro Carvalho Chehab | bb31d23 | 2016-02-04 13:26:22 -0200 | [diff] [blame] | 2013 | err = dtv_property_process_get(fe, &getp, tvp + i, file); |
Andreas Oberritter | aff8ab5 | 2011-05-09 00:03:34 +0100 | [diff] [blame] | 2014 | if (err < 0) |
| 2015 | goto out; |
| 2016 | (tvp + i)->result = err; |
Steven Toth | d48cb40 | 2008-09-26 00:16:25 -0300 | [diff] [blame] | 2017 | } |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 2018 | |
Mauro Carvalho Chehab | 71d1b2b | 2014-09-24 10:15:22 -0300 | [diff] [blame] | 2019 | if (copy_to_user((void __user *)tvps->props, tvp, |
| 2020 | tvps->num * sizeof(struct dtv_property))) { |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 2021 | err = -EFAULT; |
| 2022 | goto out; |
| 2023 | } |
| 2024 | |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 2025 | } else |
Mauro Carvalho Chehab | ac89758 | 2013-02-15 13:39:31 -0200 | [diff] [blame] | 2026 | err = -EOPNOTSUPP; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 2027 | |
Steven Toth | e7fee0f3 | 2008-09-11 10:23:01 -0300 | [diff] [blame] | 2028 | out: |
| 2029 | kfree(tvp); |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 2030 | return err; |
| 2031 | } |
| 2032 | |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2033 | static int dtv_set_frontend(struct dvb_frontend *fe) |
Mauro Carvalho Chehab | 9682cea | 2012-01-01 16:11:12 -0300 | [diff] [blame] | 2034 | { |
Mauro Carvalho Chehab | 9682cea | 2012-01-01 16:11:12 -0300 | [diff] [blame] | 2035 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
| 2036 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
| 2037 | struct dvb_frontend_tune_settings fetunesettings; |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2038 | u32 rolloff = 0; |
Mauro Carvalho Chehab | 9682cea | 2012-01-01 16:11:12 -0300 | [diff] [blame] | 2039 | |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2040 | if (dvb_frontend_check_parameters(fe) < 0) |
| 2041 | return -EINVAL; |
Mauro Carvalho Chehab | 9682cea | 2012-01-01 16:11:12 -0300 | [diff] [blame] | 2042 | |
| 2043 | /* |
Chris Rankin | 556a044 | 2012-04-06 18:38:18 -0300 | [diff] [blame] | 2044 | * Initialize output parameters to match the values given by |
| 2045 | * the user. FE_SET_FRONTEND triggers an initial frontend event |
| 2046 | * with status = 0, which copies output parameters to userspace. |
| 2047 | */ |
Mauro Carvalho Chehab | 2ea9a08 | 2016-02-04 09:45:14 -0200 | [diff] [blame] | 2048 | dtv_property_legacy_params_sync(fe, c, &fepriv->parameters_out); |
Chris Rankin | 556a044 | 2012-04-06 18:38:18 -0300 | [diff] [blame] | 2049 | |
| 2050 | /* |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2051 | * Be sure that the bandwidth will be filled for all |
| 2052 | * non-satellite systems, as tuners need to know what |
| 2053 | * low pass/Nyquist half filter should be applied, in |
| 2054 | * order to avoid inter-channel noise. |
| 2055 | * |
| 2056 | * ISDB-T and DVB-T/T2 already sets bandwidth. |
| 2057 | * ATSC and DVB-C don't set, so, the core should fill it. |
| 2058 | * |
| 2059 | * On DVB-C Annex A and C, the bandwidth is a function of |
| 2060 | * the roll-off and symbol rate. Annex B defines different |
| 2061 | * roll-off factors depending on the modulation. Fortunately, |
| 2062 | * Annex B is only used with 6MHz, so there's no need to |
| 2063 | * calculate it. |
| 2064 | * |
| 2065 | * While not officially supported, a side effect of handling it at |
| 2066 | * the cache level is that a program could retrieve the bandwidth |
| 2067 | * via DTV_BANDWIDTH_HZ, which may be useful for test programs. |
| 2068 | */ |
| 2069 | switch (c->delivery_system) { |
| 2070 | case SYS_ATSC: |
| 2071 | case SYS_DVBC_ANNEX_B: |
| 2072 | c->bandwidth_hz = 6000000; |
| 2073 | break; |
| 2074 | case SYS_DVBC_ANNEX_A: |
| 2075 | rolloff = 115; |
| 2076 | break; |
| 2077 | case SYS_DVBC_ANNEX_C: |
| 2078 | rolloff = 113; |
| 2079 | break; |
Mauro Carvalho Chehab | c623ed6 | 2014-08-22 10:30:17 -0500 | [diff] [blame] | 2080 | case SYS_DVBS: |
| 2081 | case SYS_TURBO: |
Akihiro Tsukada | 8e281fa | 2014-10-31 10:19:39 -0300 | [diff] [blame] | 2082 | case SYS_ISDBS: |
Mauro Carvalho Chehab | c623ed6 | 2014-08-22 10:30:17 -0500 | [diff] [blame] | 2083 | rolloff = 135; |
| 2084 | break; |
| 2085 | case SYS_DVBS2: |
| 2086 | switch (c->rolloff) { |
| 2087 | case ROLLOFF_20: |
| 2088 | rolloff = 120; |
| 2089 | break; |
| 2090 | case ROLLOFF_25: |
| 2091 | rolloff = 125; |
| 2092 | break; |
| 2093 | default: |
| 2094 | case ROLLOFF_35: |
| 2095 | rolloff = 135; |
| 2096 | } |
| 2097 | break; |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2098 | default: |
| 2099 | break; |
| 2100 | } |
| 2101 | if (rolloff) |
Antti Palosaari | 2a80f29 | 2015-04-14 15:12:54 -0300 | [diff] [blame] | 2102 | c->bandwidth_hz = mult_frac(c->symbol_rate, rolloff, 100); |
Mauro Carvalho Chehab | 9682cea | 2012-01-01 16:11:12 -0300 | [diff] [blame] | 2103 | |
| 2104 | /* force auto frequency inversion if requested */ |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2105 | if (dvb_force_auto_inversion) |
Mauro Carvalho Chehab | 9682cea | 2012-01-01 16:11:12 -0300 | [diff] [blame] | 2106 | c->inversion = INVERSION_AUTO; |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2107 | |
| 2108 | /* |
| 2109 | * without hierarchical coding code_rate_LP is irrelevant, |
| 2110 | * so we tolerate the otherwise invalid FEC_NONE setting |
| 2111 | */ |
| 2112 | if (c->hierarchy == HIERARCHY_NONE && c->code_rate_LP == FEC_NONE) |
| 2113 | c->code_rate_LP = FEC_AUTO; |
Mauro Carvalho Chehab | 9682cea | 2012-01-01 16:11:12 -0300 | [diff] [blame] | 2114 | |
| 2115 | /* get frontend-specific tuning settings */ |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2116 | memset(&fetunesettings, 0, sizeof(struct dvb_frontend_tune_settings)); |
Mauro Carvalho Chehab | 9682cea | 2012-01-01 16:11:12 -0300 | [diff] [blame] | 2117 | if (fe->ops.get_tune_settings && (fe->ops.get_tune_settings(fe, &fetunesettings) == 0)) { |
| 2118 | fepriv->min_delay = (fetunesettings.min_delay_ms * HZ) / 1000; |
| 2119 | fepriv->max_drift = fetunesettings.max_drift; |
| 2120 | fepriv->step_size = fetunesettings.step_size; |
| 2121 | } else { |
| 2122 | /* default values */ |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2123 | switch (c->delivery_system) { |
Mauro Carvalho Chehab | 910a5f2 | 2012-05-07 15:01:37 -0300 | [diff] [blame] | 2124 | case SYS_DVBS: |
| 2125 | case SYS_DVBS2: |
| 2126 | case SYS_ISDBS: |
| 2127 | case SYS_TURBO: |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2128 | case SYS_DVBC_ANNEX_A: |
| 2129 | case SYS_DVBC_ANNEX_C: |
| 2130 | fepriv->min_delay = HZ / 20; |
Mauro Carvalho Chehab | 9682cea | 2012-01-01 16:11:12 -0300 | [diff] [blame] | 2131 | fepriv->step_size = c->symbol_rate / 16000; |
| 2132 | fepriv->max_drift = c->symbol_rate / 2000; |
| 2133 | break; |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2134 | case SYS_DVBT: |
| 2135 | case SYS_DVBT2: |
| 2136 | case SYS_ISDBT: |
Antti Palosaari | 224b664 | 2012-08-12 22:33:21 -0300 | [diff] [blame] | 2137 | case SYS_DTMB: |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2138 | fepriv->min_delay = HZ / 20; |
Mauro Carvalho Chehab | 9682cea | 2012-01-01 16:11:12 -0300 | [diff] [blame] | 2139 | fepriv->step_size = fe->ops.info.frequency_stepsize * 2; |
| 2140 | fepriv->max_drift = (fe->ops.info.frequency_stepsize * 2) + 1; |
| 2141 | break; |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2142 | default: |
| 2143 | /* |
| 2144 | * FIXME: This sounds wrong! if freqency_stepsize is |
| 2145 | * defined by the frontend, why not use it??? |
| 2146 | */ |
| 2147 | fepriv->min_delay = HZ / 20; |
| 2148 | fepriv->step_size = 0; /* no zigzag */ |
Mauro Carvalho Chehab | 9682cea | 2012-01-01 16:11:12 -0300 | [diff] [blame] | 2149 | fepriv->max_drift = 0; |
| 2150 | break; |
| 2151 | } |
| 2152 | } |
| 2153 | if (dvb_override_tune_delay > 0) |
| 2154 | fepriv->min_delay = (dvb_override_tune_delay * HZ) / 1000; |
| 2155 | |
| 2156 | fepriv->state = FESTATE_RETUNE; |
| 2157 | |
| 2158 | /* Request the search algorithm to search */ |
| 2159 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; |
| 2160 | |
| 2161 | dvb_frontend_clear_events(fe); |
| 2162 | dvb_frontend_add_event(fe, 0); |
| 2163 | dvb_frontend_wakeup(fe); |
| 2164 | fepriv->status = 0; |
| 2165 | |
| 2166 | return 0; |
| 2167 | } |
| 2168 | |
| 2169 | |
Arnd Bergmann | 16ef8de | 2010-04-27 00:24:00 +0200 | [diff] [blame] | 2170 | static int dvb_frontend_ioctl_legacy(struct file *file, |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 2171 | unsigned int cmd, void *parg) |
| 2172 | { |
| 2173 | struct dvb_device *dvbdev = file->private_data; |
| 2174 | struct dvb_frontend *fe = dvbdev->priv; |
| 2175 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2176 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
Mauro Carvalho Chehab | ac89758 | 2013-02-15 13:39:31 -0200 | [diff] [blame] | 2177 | int err = -EOPNOTSUPP; |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 2178 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2179 | switch (cmd) { |
| 2180 | case FE_GET_INFO: { |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 2181 | struct dvb_frontend_info* info = parg; |
Mauro Carvalho Chehab | 9474c5e | 2012-01-05 12:28:20 -0200 | [diff] [blame] | 2182 | |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 2183 | memcpy(info, &fe->ops.info, sizeof(struct dvb_frontend_info)); |
Guillaume Audirac | 2030c03 | 2010-05-06 09:30:25 -0300 | [diff] [blame] | 2184 | dvb_frontend_get_frequency_limits(fe, &info->frequency_min, &info->frequency_max); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2185 | |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2186 | /* |
| 2187 | * Associate the 4 delivery systems supported by DVBv3 |
| 2188 | * API with their DVBv5 counterpart. For the other standards, |
| 2189 | * use the closest type, assuming that it would hopefully |
| 2190 | * work with a DVBv3 application. |
| 2191 | * It should be noticed that, on multi-frontend devices with |
| 2192 | * different types (terrestrial and cable, for example), |
| 2193 | * a pure DVBv3 application won't be able to use all delivery |
| 2194 | * systems. Yet, changing the DVBv5 cache to the other delivery |
| 2195 | * system should be enough for making it work. |
| 2196 | */ |
| 2197 | switch (dvbv3_type(c->delivery_system)) { |
| 2198 | case DVBV3_QPSK: |
Mauro Carvalho Chehab | 9474c5e | 2012-01-05 12:28:20 -0200 | [diff] [blame] | 2199 | info->type = FE_QPSK; |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2200 | break; |
| 2201 | case DVBV3_ATSC: |
Mauro Carvalho Chehab | 9474c5e | 2012-01-05 12:28:20 -0200 | [diff] [blame] | 2202 | info->type = FE_ATSC; |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2203 | break; |
| 2204 | case DVBV3_QAM: |
Mauro Carvalho Chehab | 9474c5e | 2012-01-05 12:28:20 -0200 | [diff] [blame] | 2205 | info->type = FE_QAM; |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2206 | break; |
| 2207 | case DVBV3_OFDM: |
Mauro Carvalho Chehab | 9474c5e | 2012-01-05 12:28:20 -0200 | [diff] [blame] | 2208 | info->type = FE_OFDM; |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2209 | break; |
| 2210 | default: |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 2211 | dev_err(fe->dvb->device, |
| 2212 | "%s: doesn't know how to handle a DVBv3 call to delivery system %i\n", |
| 2213 | __func__, c->delivery_system); |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2214 | fe->ops.info.type = FE_OFDM; |
| 2215 | } |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 2216 | dev_dbg(fe->dvb->device, "%s: current delivery system on cache: %d, V3 type: %d\n", |
| 2217 | __func__, c->delivery_system, fe->ops.info.type); |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2218 | |
Malcolm Priestley | c9d57de | 2015-08-31 06:13:45 -0300 | [diff] [blame] | 2219 | /* Set CAN_INVERSION_AUTO bit on in other than oneshot mode */ |
| 2220 | if (!(fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT)) |
| 2221 | info->caps |= FE_CAN_INVERSION_AUTO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2222 | err = 0; |
| 2223 | break; |
| 2224 | } |
| 2225 | |
Peter Beutner | 6757ccc | 2005-07-07 17:57:36 -0700 | [diff] [blame] | 2226 | case FE_READ_STATUS: { |
Mauro Carvalho Chehab | 0df289a | 2015-06-07 14:53:52 -0300 | [diff] [blame] | 2227 | enum fe_status *status = parg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2228 | |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 2229 | /* if retune was requested but hasn't occurred yet, prevent |
Peter Beutner | 6757ccc | 2005-07-07 17:57:36 -0700 | [diff] [blame] | 2230 | * that user get signal state from previous tuning */ |
Janne Grunau | 0188625 | 2009-09-01 19:23:09 -0300 | [diff] [blame] | 2231 | if (fepriv->state == FESTATE_RETUNE || |
| 2232 | fepriv->state == FESTATE_ERROR) { |
Peter Beutner | 6757ccc | 2005-07-07 17:57:36 -0700 | [diff] [blame] | 2233 | err=0; |
| 2234 | *status = 0; |
| 2235 | break; |
| 2236 | } |
| 2237 | |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 2238 | if (fe->ops.read_status) |
| 2239 | err = fe->ops.read_status(fe, status); |
Peter Beutner | 6757ccc | 2005-07-07 17:57:36 -0700 | [diff] [blame] | 2240 | break; |
| 2241 | } |
Antti Palosaari | 48caa6f | 2012-08-09 19:00:51 -0300 | [diff] [blame] | 2242 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2243 | case FE_READ_BER: |
Antti Palosaari | 48caa6f | 2012-08-09 19:00:51 -0300 | [diff] [blame] | 2244 | if (fe->ops.read_ber) { |
| 2245 | if (fepriv->thread) |
| 2246 | err = fe->ops.read_ber(fe, (__u32 *) parg); |
| 2247 | else |
| 2248 | err = -EAGAIN; |
| 2249 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2250 | break; |
| 2251 | |
| 2252 | case FE_READ_SIGNAL_STRENGTH: |
Antti Palosaari | 48caa6f | 2012-08-09 19:00:51 -0300 | [diff] [blame] | 2253 | if (fe->ops.read_signal_strength) { |
| 2254 | if (fepriv->thread) |
| 2255 | err = fe->ops.read_signal_strength(fe, (__u16 *) parg); |
| 2256 | else |
| 2257 | err = -EAGAIN; |
| 2258 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2259 | break; |
| 2260 | |
| 2261 | case FE_READ_SNR: |
Antti Palosaari | 48caa6f | 2012-08-09 19:00:51 -0300 | [diff] [blame] | 2262 | if (fe->ops.read_snr) { |
| 2263 | if (fepriv->thread) |
| 2264 | err = fe->ops.read_snr(fe, (__u16 *) parg); |
| 2265 | else |
| 2266 | err = -EAGAIN; |
| 2267 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2268 | break; |
| 2269 | |
| 2270 | case FE_READ_UNCORRECTED_BLOCKS: |
Antti Palosaari | 48caa6f | 2012-08-09 19:00:51 -0300 | [diff] [blame] | 2271 | if (fe->ops.read_ucblocks) { |
| 2272 | if (fepriv->thread) |
| 2273 | err = fe->ops.read_ucblocks(fe, (__u32 *) parg); |
| 2274 | else |
| 2275 | err = -EAGAIN; |
| 2276 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2277 | break; |
| 2278 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2279 | case FE_DISEQC_RESET_OVERLOAD: |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 2280 | if (fe->ops.diseqc_reset_overload) { |
| 2281 | err = fe->ops.diseqc_reset_overload(fe); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2282 | fepriv->state = FESTATE_DISEQC; |
| 2283 | fepriv->status = 0; |
| 2284 | } |
| 2285 | break; |
| 2286 | |
| 2287 | case FE_DISEQC_SEND_MASTER_CMD: |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 2288 | if (fe->ops.diseqc_send_master_cmd) { |
Dan Carpenter | 8d7e506 | 2015-06-06 13:55:22 -0300 | [diff] [blame] | 2289 | struct dvb_diseqc_master_cmd *cmd = parg; |
| 2290 | |
| 2291 | if (cmd->msg_len > sizeof(cmd->msg)) { |
| 2292 | err = -EINVAL; |
| 2293 | break; |
| 2294 | } |
| 2295 | err = fe->ops.diseqc_send_master_cmd(fe, cmd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2296 | fepriv->state = FESTATE_DISEQC; |
| 2297 | fepriv->status = 0; |
| 2298 | } |
| 2299 | break; |
| 2300 | |
| 2301 | case FE_DISEQC_SEND_BURST: |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 2302 | if (fe->ops.diseqc_send_burst) { |
Mauro Carvalho Chehab | 0df289a | 2015-06-07 14:53:52 -0300 | [diff] [blame] | 2303 | err = fe->ops.diseqc_send_burst(fe, |
| 2304 | (enum fe_sec_mini_cmd)parg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2305 | fepriv->state = FESTATE_DISEQC; |
| 2306 | fepriv->status = 0; |
| 2307 | } |
| 2308 | break; |
| 2309 | |
| 2310 | case FE_SET_TONE: |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 2311 | if (fe->ops.set_tone) { |
Mauro Carvalho Chehab | 0df289a | 2015-06-07 14:53:52 -0300 | [diff] [blame] | 2312 | err = fe->ops.set_tone(fe, |
| 2313 | (enum fe_sec_tone_mode)parg); |
| 2314 | fepriv->tone = (enum fe_sec_tone_mode)parg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2315 | fepriv->state = FESTATE_DISEQC; |
| 2316 | fepriv->status = 0; |
| 2317 | } |
| 2318 | break; |
| 2319 | |
| 2320 | case FE_SET_VOLTAGE: |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 2321 | if (fe->ops.set_voltage) { |
Mauro Carvalho Chehab | 0df289a | 2015-06-07 14:53:52 -0300 | [diff] [blame] | 2322 | err = fe->ops.set_voltage(fe, |
| 2323 | (enum fe_sec_voltage)parg); |
| 2324 | fepriv->voltage = (enum fe_sec_voltage)parg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2325 | fepriv->state = FESTATE_DISEQC; |
| 2326 | fepriv->status = 0; |
| 2327 | } |
| 2328 | break; |
| 2329 | |
| 2330 | case FE_DISHNETWORK_SEND_LEGACY_CMD: |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 2331 | if (fe->ops.dishnetwork_send_legacy_command) { |
Mauro Carvalho Chehab | 0df289a | 2015-06-07 14:53:52 -0300 | [diff] [blame] | 2332 | err = fe->ops.dishnetwork_send_legacy_command(fe, |
| 2333 | (unsigned long)parg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2334 | fepriv->state = FESTATE_DISEQC; |
| 2335 | fepriv->status = 0; |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 2336 | } else if (fe->ops.set_voltage) { |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 2337 | /* |
| 2338 | * NOTE: This is a fallback condition. Some frontends |
| 2339 | * (stv0299 for instance) take longer than 8msec to |
| 2340 | * respond to a set_voltage command. Those switches |
| 2341 | * need custom routines to switch properly. For all |
Guillaume Audirac | 2030c03 | 2010-05-06 09:30:25 -0300 | [diff] [blame] | 2342 | * other frontends, the following should work ok. |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 2343 | * Dish network legacy switches (as used by Dish500) |
| 2344 | * are controlled by sending 9-bit command words |
| 2345 | * spaced 8msec apart. |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 2346 | * the actual command word is switch/port dependent |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 2347 | * so it is up to the userspace application to send |
| 2348 | * the right command. |
| 2349 | * The command must always start with a '0' after |
| 2350 | * initialization, so parg is 8 bits and does not |
| 2351 | * include the initialization or start bit |
| 2352 | */ |
Hans Verkuil | c6eb8ea | 2008-09-03 17:11:54 -0300 | [diff] [blame] | 2353 | unsigned long swcmd = ((unsigned long) parg) << 1; |
Tina Ruchandani | 9056a23 | 2015-05-31 04:17:06 -0300 | [diff] [blame] | 2354 | ktime_t nexttime; |
| 2355 | ktime_t tv[10]; |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 2356 | int i; |
| 2357 | u8 last = 1; |
| 2358 | if (dvb_frontend_debug) |
Hans Verkuil | c6eb8ea | 2008-09-03 17:11:54 -0300 | [diff] [blame] | 2359 | printk("%s switch command: 0x%04lx\n", __func__, swcmd); |
Abhilash Jindal | 6b3f999 | 2016-01-31 03:47:31 -0200 | [diff] [blame] | 2360 | nexttime = ktime_get_boottime(); |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 2361 | if (dvb_frontend_debug) |
Ezequiel Garcia | b9b1b3a | 2012-10-23 15:57:23 -0300 | [diff] [blame] | 2362 | tv[0] = nexttime; |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 2363 | /* before sending a command, initialize by sending |
| 2364 | * a 32ms 18V to the switch |
| 2365 | */ |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 2366 | fe->ops.set_voltage(fe, SEC_VOLTAGE_18); |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 2367 | dvb_frontend_sleep_until(&nexttime, 32000); |
| 2368 | |
| 2369 | for (i = 0; i < 9; i++) { |
| 2370 | if (dvb_frontend_debug) |
Abhilash Jindal | 6b3f999 | 2016-01-31 03:47:31 -0200 | [diff] [blame] | 2371 | tv[i+1] = ktime_get_boottime(); |
Hans Verkuil | c6eb8ea | 2008-09-03 17:11:54 -0300 | [diff] [blame] | 2372 | if ((swcmd & 0x01) != last) { |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 2373 | /* set voltage to (last ? 13V : 18V) */ |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 2374 | fe->ops.set_voltage(fe, (last) ? SEC_VOLTAGE_13 : SEC_VOLTAGE_18); |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 2375 | last = (last) ? 0 : 1; |
| 2376 | } |
Hans Verkuil | c6eb8ea | 2008-09-03 17:11:54 -0300 | [diff] [blame] | 2377 | swcmd = swcmd >> 1; |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 2378 | if (i != 8) |
| 2379 | dvb_frontend_sleep_until(&nexttime, 8000); |
| 2380 | } |
| 2381 | if (dvb_frontend_debug) { |
| 2382 | 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] | 2383 | __func__, fe->dvb->num); |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 2384 | for (i = 1; i < 10; i++) |
Tina Ruchandani | 9056a23 | 2015-05-31 04:17:06 -0300 | [diff] [blame] | 2385 | printk("%d: %d\n", i, |
| 2386 | (int) ktime_us_delta(tv[i], tv[i-1])); |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 2387 | } |
| 2388 | err = 0; |
| 2389 | fepriv->state = FESTATE_DISEQC; |
| 2390 | fepriv->status = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2391 | } |
| 2392 | break; |
| 2393 | |
| 2394 | case FE_DISEQC_RECV_SLAVE_REPLY: |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 2395 | if (fe->ops.diseqc_recv_slave_reply) |
| 2396 | 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] | 2397 | break; |
| 2398 | |
| 2399 | case FE_ENABLE_HIGH_LNB_VOLTAGE: |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 2400 | if (fe->ops.enable_high_lnb_voltage) |
| 2401 | err = fe->ops.enable_high_lnb_voltage(fe, (long) parg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2402 | break; |
| 2403 | |
Mauro Carvalho Chehab | 9682cea | 2012-01-01 16:11:12 -0300 | [diff] [blame] | 2404 | case FE_SET_FRONTEND: |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 2405 | err = dvbv3_set_delivery_system(fe); |
Mauro Carvalho Chehab | 04be0f7 | 2012-01-01 16:11:14 -0300 | [diff] [blame] | 2406 | if (err) |
| 2407 | break; |
| 2408 | |
Mauro Carvalho Chehab | e399ce7 | 2012-01-01 16:11:16 -0300 | [diff] [blame] | 2409 | err = dtv_property_cache_sync(fe, c, parg); |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2410 | if (err) |
| 2411 | break; |
| 2412 | err = dtv_set_frontend(fe); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2413 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2414 | case FE_GET_EVENT: |
| 2415 | err = dvb_frontend_get_event (fe, parg, file->f_flags); |
| 2416 | break; |
| 2417 | |
Mauro Carvalho Chehab | bb31d23 | 2016-02-04 13:26:22 -0200 | [diff] [blame] | 2418 | case FE_GET_FRONTEND: { |
| 2419 | struct dtv_frontend_properties getp = fe->dtv_property_cache; |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 2420 | |
Mauro Carvalho Chehab | bb31d23 | 2016-02-04 13:26:22 -0200 | [diff] [blame] | 2421 | /* |
| 2422 | * Let's use our own copy of property cache, in order to |
| 2423 | * avoid mangling with DTV zigzag logic, as drivers might |
| 2424 | * return crap, if they don't check if the data is available |
| 2425 | * before updating the properties cache. |
| 2426 | */ |
| 2427 | err = dtv_get_frontend(fe, &getp, parg); |
| 2428 | break; |
| 2429 | } |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 2430 | case FE_SET_FRONTEND_TUNE_MODE: |
Hans Verkuil | e18828e | 2006-01-09 15:25:28 -0200 | [diff] [blame] | 2431 | fepriv->tune_mode_flags = (unsigned long) parg; |
Trent Piepho | 1b172e0 | 2006-06-29 13:16:04 -0300 | [diff] [blame] | 2432 | err = 0; |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 2433 | break; |
Peter Senna Tschudin | c2c1b41 | 2012-09-28 05:37:22 -0300 | [diff] [blame] | 2434 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2435 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2436 | return err; |
| 2437 | } |
| 2438 | |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 2439 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2440 | static unsigned int dvb_frontend_poll(struct file *file, struct poll_table_struct *wait) |
| 2441 | { |
| 2442 | struct dvb_device *dvbdev = file->private_data; |
| 2443 | struct dvb_frontend *fe = dvbdev->priv; |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 2444 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2445 | |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 2446 | dev_dbg_ratelimited(fe->dvb->device, "%s:\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2447 | |
| 2448 | poll_wait (file, &fepriv->events.wait_queue, wait); |
| 2449 | |
| 2450 | if (fepriv->events.eventw != fepriv->events.eventr) |
| 2451 | return (POLLIN | POLLRDNORM | POLLPRI); |
| 2452 | |
| 2453 | return 0; |
| 2454 | } |
| 2455 | |
| 2456 | static int dvb_frontend_open(struct inode *inode, struct file *file) |
| 2457 | { |
| 2458 | struct dvb_device *dvbdev = file->private_data; |
| 2459 | struct dvb_frontend *fe = dvbdev->priv; |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 2460 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Darron Broad | 59b1842 | 2008-10-11 11:44:05 -0300 | [diff] [blame] | 2461 | struct dvb_adapter *adapter = fe->dvb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2462 | int ret; |
| 2463 | |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 2464 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
Shuah Khan | 18ed286 | 2014-07-12 13:44:12 -0300 | [diff] [blame] | 2465 | if (fe->exit == DVB_FE_DEVICE_REMOVED) |
matthieu castet | e36309f | 2010-05-05 15:59:20 -0300 | [diff] [blame] | 2466 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2467 | |
Darron Broad | 59b1842 | 2008-10-11 11:44:05 -0300 | [diff] [blame] | 2468 | if (adapter->mfe_shared) { |
| 2469 | mutex_lock (&adapter->mfe_lock); |
Darron Broad | 6594690 | 2008-10-15 13:37:59 -0300 | [diff] [blame] | 2470 | |
| 2471 | if (adapter->mfe_dvbdev == NULL) |
| 2472 | adapter->mfe_dvbdev = dvbdev; |
| 2473 | |
| 2474 | else if (adapter->mfe_dvbdev != dvbdev) { |
| 2475 | struct dvb_device |
| 2476 | *mfedev = adapter->mfe_dvbdev; |
| 2477 | struct dvb_frontend |
| 2478 | *mfe = mfedev->priv; |
| 2479 | struct dvb_frontend_private |
| 2480 | *mfepriv = mfe->frontend_priv; |
| 2481 | int mferetry = (dvb_mfe_wait_time << 1); |
| 2482 | |
| 2483 | mutex_unlock (&adapter->mfe_lock); |
| 2484 | while (mferetry-- && (mfedev->users != -1 || |
| 2485 | mfepriv->thread != NULL)) { |
| 2486 | if(msleep_interruptible(500)) { |
| 2487 | if(signal_pending(current)) |
| 2488 | return -EINTR; |
Darron Broad | 59b1842 | 2008-10-11 11:44:05 -0300 | [diff] [blame] | 2489 | } |
| 2490 | } |
Darron Broad | 6594690 | 2008-10-15 13:37:59 -0300 | [diff] [blame] | 2491 | |
| 2492 | mutex_lock (&adapter->mfe_lock); |
| 2493 | if(adapter->mfe_dvbdev != dvbdev) { |
| 2494 | mfedev = adapter->mfe_dvbdev; |
| 2495 | mfe = mfedev->priv; |
| 2496 | mfepriv = mfe->frontend_priv; |
| 2497 | if (mfedev->users != -1 || |
| 2498 | mfepriv->thread != NULL) { |
| 2499 | mutex_unlock (&adapter->mfe_lock); |
| 2500 | return -EBUSY; |
| 2501 | } |
| 2502 | adapter->mfe_dvbdev = dvbdev; |
| 2503 | } |
Darron Broad | 59b1842 | 2008-10-11 11:44:05 -0300 | [diff] [blame] | 2504 | } |
| 2505 | } |
| 2506 | |
Oliver Endriss | 48136e1 | 2007-08-25 12:00:23 -0300 | [diff] [blame] | 2507 | if (dvbdev->users == -1 && fe->ops.ts_bus_ctrl) { |
| 2508 | if ((ret = fe->ops.ts_bus_ctrl(fe, 1)) < 0) |
Darron Broad | 59b1842 | 2008-10-11 11:44:05 -0300 | [diff] [blame] | 2509 | goto err0; |
Devin Heitmueller | 2d19693 | 2011-07-04 21:55:01 -0300 | [diff] [blame] | 2510 | |
| 2511 | /* If we took control of the bus, we need to force |
| 2512 | reinitialization. This is because many ts_bus_ctrl() |
| 2513 | functions strobe the RESET pin on the demod, and if the |
| 2514 | frontend thread already exists then the dvb_init() routine |
| 2515 | won't get called (which is what usually does initial |
| 2516 | register configuration). */ |
| 2517 | fepriv->reinitialise = 1; |
Steven Toth | ba7e6f3 | 2006-09-25 12:41:53 -0300 | [diff] [blame] | 2518 | } |
| 2519 | |
Oliver Endriss | 48136e1 | 2007-08-25 12:00:23 -0300 | [diff] [blame] | 2520 | if ((ret = dvb_generic_open (inode, file)) < 0) |
| 2521 | goto err1; |
Andrew de Quincey | 04c56d0 | 2006-07-10 03:34:14 -0300 | [diff] [blame] | 2522 | |
Oliver Endriss | 48136e1 | 2007-08-25 12:00:23 -0300 | [diff] [blame] | 2523 | if ((file->f_flags & O_ACCMODE) != O_RDONLY) { |
Andrew de Quincey | 04c56d0 | 2006-07-10 03:34:14 -0300 | [diff] [blame] | 2524 | /* normal tune mode when opened R/W */ |
| 2525 | fepriv->tune_mode_flags &= ~FE_TUNE_MODE_ONESHOT; |
| 2526 | fepriv->tone = -1; |
| 2527 | fepriv->voltage = -1; |
| 2528 | |
Shuah Khan | 68ff576 | 2016-02-11 21:41:36 -0200 | [diff] [blame] | 2529 | #ifdef CONFIG_MEDIA_CONTROLLER_DVB |
| 2530 | if (fe->dvb->mdev && fe->dvb->mdev->enable_source) { |
| 2531 | ret = fe->dvb->mdev->enable_source(dvbdev->entity, |
| 2532 | &fepriv->pipe); |
| 2533 | if (ret) { |
| 2534 | dev_err(fe->dvb->device, |
| 2535 | "Tuner is busy. Error %d\n", ret); |
| 2536 | goto err2; |
| 2537 | } |
| 2538 | } |
| 2539 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2540 | ret = dvb_frontend_start (fe); |
| 2541 | if (ret) |
Shuah Khan | 68ff576 | 2016-02-11 21:41:36 -0200 | [diff] [blame] | 2542 | goto err3; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2543 | |
| 2544 | /* empty event queue */ |
| 2545 | fepriv->events.eventr = fepriv->events.eventw = 0; |
| 2546 | } |
| 2547 | |
Max Kellermann | fe35637 | 2016-07-04 09:08:51 -0300 | [diff] [blame] | 2548 | dvb_frontend_private_get(fepriv); |
| 2549 | |
Darron Broad | 59b1842 | 2008-10-11 11:44:05 -0300 | [diff] [blame] | 2550 | if (adapter->mfe_shared) |
| 2551 | mutex_unlock (&adapter->mfe_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2552 | return ret; |
Oliver Endriss | 48136e1 | 2007-08-25 12:00:23 -0300 | [diff] [blame] | 2553 | |
Shuah Khan | 68ff576 | 2016-02-11 21:41:36 -0200 | [diff] [blame] | 2554 | err3: |
| 2555 | #ifdef CONFIG_MEDIA_CONTROLLER_DVB |
| 2556 | if (fe->dvb->mdev && fe->dvb->mdev->disable_source) |
| 2557 | fe->dvb->mdev->disable_source(dvbdev->entity); |
Oliver Endriss | 48136e1 | 2007-08-25 12:00:23 -0300 | [diff] [blame] | 2558 | err2: |
Shuah Khan | 68ff576 | 2016-02-11 21:41:36 -0200 | [diff] [blame] | 2559 | #endif |
Oliver Endriss | 48136e1 | 2007-08-25 12:00:23 -0300 | [diff] [blame] | 2560 | dvb_generic_release(inode, file); |
| 2561 | err1: |
| 2562 | if (dvbdev->users == -1 && fe->ops.ts_bus_ctrl) |
| 2563 | fe->ops.ts_bus_ctrl(fe, 0); |
Darron Broad | 59b1842 | 2008-10-11 11:44:05 -0300 | [diff] [blame] | 2564 | err0: |
| 2565 | if (adapter->mfe_shared) |
| 2566 | mutex_unlock (&adapter->mfe_lock); |
Oliver Endriss | 48136e1 | 2007-08-25 12:00:23 -0300 | [diff] [blame] | 2567 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2568 | } |
| 2569 | |
| 2570 | static int dvb_frontend_release(struct inode *inode, struct file *file) |
| 2571 | { |
| 2572 | struct dvb_device *dvbdev = file->private_data; |
| 2573 | struct dvb_frontend *fe = dvbdev->priv; |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 2574 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Markus Rechberger | ca5be9c | 2007-04-14 10:18:58 -0300 | [diff] [blame] | 2575 | int ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2576 | |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 2577 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2578 | |
Andreas Oberritter | b9d5efc | 2011-12-09 21:37:00 -0300 | [diff] [blame] | 2579 | if ((file->f_flags & O_ACCMODE) != O_RDONLY) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2580 | fepriv->release_jiffies = jiffies; |
Andreas Oberritter | b9d5efc | 2011-12-09 21:37:00 -0300 | [diff] [blame] | 2581 | mb(); |
| 2582 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2583 | |
Markus Rechberger | ca5be9c | 2007-04-14 10:18:58 -0300 | [diff] [blame] | 2584 | ret = dvb_generic_release (inode, file); |
| 2585 | |
Oliver Endriss | 48136e1 | 2007-08-25 12:00:23 -0300 | [diff] [blame] | 2586 | if (dvbdev->users == -1) { |
Andreas Oberritter | b9d5efc | 2011-12-09 21:37:00 -0300 | [diff] [blame] | 2587 | wake_up(&fepriv->wait_queue); |
Shuah Khan | 68ff576 | 2016-02-11 21:41:36 -0200 | [diff] [blame] | 2588 | #ifdef CONFIG_MEDIA_CONTROLLER_DVB |
| 2589 | if (fe->dvb->mdev && fe->dvb->mdev->disable_source) |
| 2590 | fe->dvb->mdev->disable_source(dvbdev->entity); |
| 2591 | #endif |
Shuah Khan | 18ed286 | 2014-07-12 13:44:12 -0300 | [diff] [blame] | 2592 | if (fe->exit != DVB_FE_NO_EXIT) |
Oliver Endriss | 48136e1 | 2007-08-25 12:00:23 -0300 | [diff] [blame] | 2593 | wake_up(&dvbdev->wait_queue); |
Oliver Endriss | 48136e1 | 2007-08-25 12:00:23 -0300 | [diff] [blame] | 2594 | if (fe->ops.ts_bus_ctrl) |
| 2595 | fe->ops.ts_bus_ctrl(fe, 0); |
Markus Rechberger | ca5be9c | 2007-04-14 10:18:58 -0300 | [diff] [blame] | 2596 | } |
Oliver Endriss | 48136e1 | 2007-08-25 12:00:23 -0300 | [diff] [blame] | 2597 | |
Max Kellermann | fe35637 | 2016-07-04 09:08:51 -0300 | [diff] [blame] | 2598 | dvb_frontend_private_put(fepriv); |
| 2599 | |
Markus Rechberger | ca5be9c | 2007-04-14 10:18:58 -0300 | [diff] [blame] | 2600 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2601 | } |
| 2602 | |
Jan Engelhardt | 784e29d | 2009-01-11 06:12:43 -0300 | [diff] [blame] | 2603 | static const struct file_operations dvb_frontend_fops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2604 | .owner = THIS_MODULE, |
Arnd Bergmann | 16ef8de | 2010-04-27 00:24:00 +0200 | [diff] [blame] | 2605 | .unlocked_ioctl = dvb_generic_ioctl, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2606 | .poll = dvb_frontend_poll, |
| 2607 | .open = dvb_frontend_open, |
Arnd Bergmann | 6038f37 | 2010-08-15 18:52:59 +0200 | [diff] [blame] | 2608 | .release = dvb_frontend_release, |
| 2609 | .llseek = noop_llseek, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2610 | }; |
| 2611 | |
Antti Palosaari | 06bae12 | 2012-08-14 22:21:06 -0300 | [diff] [blame] | 2612 | int dvb_frontend_suspend(struct dvb_frontend *fe) |
| 2613 | { |
| 2614 | int ret = 0; |
| 2615 | |
| 2616 | dev_dbg(fe->dvb->device, "%s: adap=%d fe=%d\n", __func__, fe->dvb->num, |
| 2617 | fe->id); |
| 2618 | |
Mauro Carvalho Chehab | 59d7889 | 2014-08-09 21:47:19 -0300 | [diff] [blame] | 2619 | if (fe->ops.tuner_ops.suspend) |
| 2620 | ret = fe->ops.tuner_ops.suspend(fe); |
| 2621 | else if (fe->ops.tuner_ops.sleep) |
Antti Palosaari | 06bae12 | 2012-08-14 22:21:06 -0300 | [diff] [blame] | 2622 | ret = fe->ops.tuner_ops.sleep(fe); |
| 2623 | |
| 2624 | if (fe->ops.sleep) |
| 2625 | ret = fe->ops.sleep(fe); |
| 2626 | |
| 2627 | return ret; |
| 2628 | } |
| 2629 | EXPORT_SYMBOL(dvb_frontend_suspend); |
| 2630 | |
| 2631 | int dvb_frontend_resume(struct dvb_frontend *fe) |
| 2632 | { |
| 2633 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
| 2634 | int ret = 0; |
| 2635 | |
| 2636 | dev_dbg(fe->dvb->device, "%s: adap=%d fe=%d\n", __func__, fe->dvb->num, |
| 2637 | fe->id); |
| 2638 | |
Shuah Khan | 87cd0fa | 2014-07-24 13:02:14 -0300 | [diff] [blame] | 2639 | fe->exit = DVB_FE_DEVICE_RESUME; |
Antti Palosaari | 06bae12 | 2012-08-14 22:21:06 -0300 | [diff] [blame] | 2640 | if (fe->ops.init) |
| 2641 | ret = fe->ops.init(fe); |
| 2642 | |
Mauro Carvalho Chehab | 59d7889 | 2014-08-09 21:47:19 -0300 | [diff] [blame] | 2643 | if (fe->ops.tuner_ops.resume) |
| 2644 | ret = fe->ops.tuner_ops.resume(fe); |
| 2645 | else if (fe->ops.tuner_ops.init) |
Antti Palosaari | 06bae12 | 2012-08-14 22:21:06 -0300 | [diff] [blame] | 2646 | ret = fe->ops.tuner_ops.init(fe); |
| 2647 | |
Mauro Carvalho Chehab | 3663b31 | 2015-11-10 11:50:30 -0200 | [diff] [blame] | 2648 | if (fe->ops.set_tone && fepriv->tone != -1) |
| 2649 | fe->ops.set_tone(fe, fepriv->tone); |
| 2650 | if (fe->ops.set_voltage && fepriv->voltage != -1) |
| 2651 | fe->ops.set_voltage(fe, fepriv->voltage); |
| 2652 | |
Shuah Khan | 87cd0fa | 2014-07-24 13:02:14 -0300 | [diff] [blame] | 2653 | fe->exit = DVB_FE_NO_EXIT; |
Antti Palosaari | 06bae12 | 2012-08-14 22:21:06 -0300 | [diff] [blame] | 2654 | fepriv->state = FESTATE_RETUNE; |
| 2655 | dvb_frontend_wakeup(fe); |
| 2656 | |
| 2657 | return ret; |
| 2658 | } |
| 2659 | EXPORT_SYMBOL(dvb_frontend_resume); |
| 2660 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2661 | int dvb_register_frontend(struct dvb_adapter* dvb, |
| 2662 | struct dvb_frontend* fe) |
| 2663 | { |
| 2664 | struct dvb_frontend_private *fepriv; |
Mauro Carvalho Chehab | c1b31b1 | 2015-01-02 11:00:17 -0300 | [diff] [blame] | 2665 | const struct dvb_device dvbdev_template = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2666 | .users = ~0, |
| 2667 | .writers = 1, |
| 2668 | .readers = (~0)-1, |
| 2669 | .fops = &dvb_frontend_fops, |
Mauro Carvalho Chehab | c1b31b1 | 2015-01-02 11:00:17 -0300 | [diff] [blame] | 2670 | #if defined(CONFIG_MEDIA_CONTROLLER_DVB) |
| 2671 | .name = fe->ops.info.name, |
| 2672 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2673 | .kernel_ioctl = dvb_frontend_ioctl |
| 2674 | }; |
| 2675 | |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 2676 | dev_dbg(dvb->device, "%s:\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2677 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 2678 | if (mutex_lock_interruptible(&frontend_mutex)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2679 | return -ERESTARTSYS; |
| 2680 | |
Panagiotis Issaris | 7408187 | 2006-01-11 19:40:56 -0200 | [diff] [blame] | 2681 | fe->frontend_priv = kzalloc(sizeof(struct dvb_frontend_private), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2682 | if (fe->frontend_priv == NULL) { |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 2683 | mutex_unlock(&frontend_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2684 | return -ENOMEM; |
| 2685 | } |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 2686 | fepriv = fe->frontend_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2687 | |
Max Kellermann | fe35637 | 2016-07-04 09:08:51 -0300 | [diff] [blame] | 2688 | kref_init(&fepriv->refcount); |
| 2689 | |
Thomas Gleixner | a0a4714 | 2010-09-07 11:33:27 -0300 | [diff] [blame] | 2690 | sema_init(&fepriv->sem, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2691 | init_waitqueue_head (&fepriv->wait_queue); |
| 2692 | init_waitqueue_head (&fepriv->events.wait_queue); |
Matthias Kaehlcke | 03b7612 | 2007-07-30 14:58:10 -0300 | [diff] [blame] | 2693 | mutex_init(&fepriv->events.mtx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2694 | fe->dvb = dvb; |
| 2695 | fepriv->inversion = INVERSION_OFF; |
| 2696 | |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 2697 | dev_info(fe->dvb->device, |
| 2698 | "DVB: registering adapter %i frontend %i (%s)...\n", |
| 2699 | fe->dvb->num, fe->id, fe->ops.info.name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2700 | |
| 2701 | dvb_register_device (fe->dvb, &fepriv->dvbdev, &dvbdev_template, |
Mauro Carvalho Chehab | df2f94e | 2015-08-21 16:18:18 -0300 | [diff] [blame] | 2702 | fe, DVB_DEVICE_FRONTEND, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2703 | |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2704 | /* |
| 2705 | * Initialize the cache to the proper values according with the |
| 2706 | * first supported delivery system (ops->delsys[0]) |
| 2707 | */ |
Mauro Carvalho Chehab | 240ab50 | 2012-01-10 18:00:50 -0300 | [diff] [blame] | 2708 | |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 2709 | fe->dtv_property_cache.delivery_system = fe->ops.delsys[0]; |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2710 | dvb_frontend_clear_cache(fe); |
| 2711 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 2712 | mutex_unlock(&frontend_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2713 | return 0; |
| 2714 | } |
| 2715 | EXPORT_SYMBOL(dvb_register_frontend); |
| 2716 | |
| 2717 | int dvb_unregister_frontend(struct dvb_frontend* fe) |
| 2718 | { |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 2719 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 2720 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2721 | |
Markus Rechberger | 57861b4 | 2007-04-14 10:19:18 -0300 | [diff] [blame] | 2722 | mutex_lock(&frontend_mutex); |
Markus Rechberger | ca5be9c | 2007-04-14 10:18:58 -0300 | [diff] [blame] | 2723 | dvb_frontend_stop (fe); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2724 | dvb_unregister_device (fepriv->dvbdev); |
Andrew de Quincey | d995506 | 2006-08-08 09:10:08 -0300 | [diff] [blame] | 2725 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2726 | /* fe is invalid now */ |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 2727 | mutex_unlock(&frontend_mutex); |
Max Kellermann | fe35637 | 2016-07-04 09:08:51 -0300 | [diff] [blame] | 2728 | dvb_frontend_private_put(fepriv); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2729 | return 0; |
| 2730 | } |
| 2731 | EXPORT_SYMBOL(dvb_unregister_frontend); |
Andrew de Quincey | f52a838 | 2006-08-08 09:10:09 -0300 | [diff] [blame] | 2732 | |
Mauro Carvalho Chehab | 149ef72 | 2008-04-29 21:38:46 -0300 | [diff] [blame] | 2733 | #ifdef CONFIG_MEDIA_ATTACH |
Andrew de Quincey | f52a838 | 2006-08-08 09:10:09 -0300 | [diff] [blame] | 2734 | void dvb_frontend_detach(struct dvb_frontend* fe) |
| 2735 | { |
| 2736 | void *ptr; |
| 2737 | |
| 2738 | if (fe->ops.release_sec) { |
| 2739 | fe->ops.release_sec(fe); |
Mauro Carvalho Chehab | 4647f48 | 2014-05-29 09:20:13 -0300 | [diff] [blame] | 2740 | dvb_detach(fe->ops.release_sec); |
Andrew de Quincey | f52a838 | 2006-08-08 09:10:09 -0300 | [diff] [blame] | 2741 | } |
| 2742 | if (fe->ops.tuner_ops.release) { |
| 2743 | fe->ops.tuner_ops.release(fe); |
Mauro Carvalho Chehab | 4647f48 | 2014-05-29 09:20:13 -0300 | [diff] [blame] | 2744 | dvb_detach(fe->ops.tuner_ops.release); |
Andrew de Quincey | f52a838 | 2006-08-08 09:10:09 -0300 | [diff] [blame] | 2745 | } |
Michael Krufky | 2426a27 | 2007-12-21 11:34:45 -0300 | [diff] [blame] | 2746 | if (fe->ops.analog_ops.release) { |
| 2747 | fe->ops.analog_ops.release(fe); |
Mauro Carvalho Chehab | 4647f48 | 2014-05-29 09:20:13 -0300 | [diff] [blame] | 2748 | dvb_detach(fe->ops.analog_ops.release); |
Michael Krufky | 2426a27 | 2007-12-21 11:34:45 -0300 | [diff] [blame] | 2749 | } |
Andrew de Quincey | f52a838 | 2006-08-08 09:10:09 -0300 | [diff] [blame] | 2750 | ptr = (void*)fe->ops.release; |
| 2751 | if (ptr) { |
| 2752 | fe->ops.release(fe); |
Mauro Carvalho Chehab | 4647f48 | 2014-05-29 09:20:13 -0300 | [diff] [blame] | 2753 | dvb_detach(ptr); |
Andrew de Quincey | f52a838 | 2006-08-08 09:10:09 -0300 | [diff] [blame] | 2754 | } |
| 2755 | } |
| 2756 | #else |
| 2757 | void dvb_frontend_detach(struct dvb_frontend* fe) |
| 2758 | { |
| 2759 | if (fe->ops.release_sec) |
| 2760 | fe->ops.release_sec(fe); |
| 2761 | if (fe->ops.tuner_ops.release) |
| 2762 | fe->ops.tuner_ops.release(fe); |
Michael Krufky | 2426a27 | 2007-12-21 11:34:45 -0300 | [diff] [blame] | 2763 | if (fe->ops.analog_ops.release) |
| 2764 | fe->ops.analog_ops.release(fe); |
Andrew de Quincey | f52a838 | 2006-08-08 09:10:09 -0300 | [diff] [blame] | 2765 | if (fe->ops.release) |
| 2766 | fe->ops.release(fe); |
| 2767 | } |
| 2768 | #endif |
| 2769 | EXPORT_SYMBOL(dvb_frontend_detach); |