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> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 43 | #include <asm/processor.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | |
| 45 | #include "dvb_frontend.h" |
| 46 | #include "dvbdev.h" |
Steven Toth | eacf8d8 | 2008-09-26 00:29:49 -0300 | [diff] [blame] | 47 | #include <linux/dvb/version.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 48 | |
| 49 | static int dvb_frontend_debug; |
Oliver Endriss | 849be2c | 2007-08-25 12:22:16 -0300 | [diff] [blame] | 50 | static int dvb_shutdown_timeout; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 51 | static int dvb_force_auto_inversion; |
| 52 | static int dvb_override_tune_delay; |
| 53 | static int dvb_powerdown_on_sleep = 1; |
Darron Broad | 59b1842 | 2008-10-11 11:44:05 -0300 | [diff] [blame] | 54 | static int dvb_mfe_wait_time = 5; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 55 | |
| 56 | module_param_named(frontend_debug, dvb_frontend_debug, int, 0644); |
Johannes Stezenbach | f4f009a | 2005-05-16 21:54:21 -0700 | [diff] [blame] | 57 | 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] | 58 | module_param(dvb_shutdown_timeout, int, 0644); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 59 | 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] | 60 | module_param(dvb_force_auto_inversion, int, 0644); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 61 | 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] | 62 | module_param(dvb_override_tune_delay, int, 0644); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 63 | 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] | 64 | module_param(dvb_powerdown_on_sleep, int, 0644); |
Uwe Bugla | a8558577 | 2006-04-11 10:21:37 -0300 | [diff] [blame] | 65 | 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] | 66 | module_param(dvb_mfe_wait_time, int, 0644); |
| 67 | 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] | 68 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 69 | #define FESTATE_IDLE 1 |
| 70 | #define FESTATE_RETUNE 2 |
| 71 | #define FESTATE_TUNING_FAST 4 |
| 72 | #define FESTATE_TUNING_SLOW 8 |
| 73 | #define FESTATE_TUNED 16 |
| 74 | #define FESTATE_ZIGZAG_FAST 32 |
| 75 | #define FESTATE_ZIGZAG_SLOW 64 |
| 76 | #define FESTATE_DISEQC 128 |
Janne Grunau | 0188625 | 2009-09-01 19:23:09 -0300 | [diff] [blame] | 77 | #define FESTATE_ERROR 256 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 78 | #define FESTATE_WAITFORLOCK (FESTATE_TUNING_FAST | FESTATE_TUNING_SLOW | FESTATE_ZIGZAG_FAST | FESTATE_ZIGZAG_SLOW | FESTATE_DISEQC) |
| 79 | #define FESTATE_SEARCHING_FAST (FESTATE_TUNING_FAST | FESTATE_ZIGZAG_FAST) |
| 80 | #define FESTATE_SEARCHING_SLOW (FESTATE_TUNING_SLOW | FESTATE_ZIGZAG_SLOW) |
| 81 | #define FESTATE_LOSTLOCK (FESTATE_ZIGZAG_FAST | FESTATE_ZIGZAG_SLOW) |
Manu Abraham | 0249ef1 | 2006-06-21 10:27:31 -0300 | [diff] [blame] | 82 | |
| 83 | #define FE_ALGO_HW 1 |
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 | |
matthieu castet | e36309f | 2010-05-05 15:59:20 -0300 | [diff] [blame] | 99 | #define DVB_FE_NO_EXIT 0 |
| 100 | #define DVB_FE_NORMAL_EXIT 1 |
| 101 | #define DVB_FE_DEVICE_REMOVED 2 |
| 102 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 103 | static DEFINE_MUTEX(frontend_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 104 | |
| 105 | struct dvb_frontend_private { |
| 106 | |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 107 | /* thread/frontend values */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 108 | struct dvb_device *dvbdev; |
Andreas Oberritter | a5959db | 2011-05-08 20:03:40 -0300 | [diff] [blame] | 109 | struct dvb_frontend_parameters parameters_out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 110 | struct dvb_fe_events events; |
| 111 | struct semaphore sem; |
| 112 | struct list_head list_head; |
| 113 | wait_queue_head_t wait_queue; |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 114 | struct task_struct *thread; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 115 | unsigned long release_jiffies; |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 116 | unsigned int exit; |
| 117 | unsigned int wakeup; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 118 | fe_status_t status; |
Peter Beutner | 400b708 | 2006-01-09 15:32:43 -0200 | [diff] [blame] | 119 | unsigned long tune_mode_flags; |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 120 | unsigned int delay; |
Andrew de Quincey | 86f40cc | 2006-03-30 15:53:35 -0300 | [diff] [blame] | 121 | unsigned int reinitialise; |
Andrew de Quincey | 6445401 | 2006-04-06 14:32:23 -0300 | [diff] [blame] | 122 | int tone; |
| 123 | int voltage; |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 124 | |
| 125 | /* swzigzag values */ |
| 126 | unsigned int state; |
| 127 | unsigned int bending; |
| 128 | int lnb_drift; |
| 129 | unsigned int inversion; |
| 130 | unsigned int auto_step; |
| 131 | unsigned int auto_sub_step; |
| 132 | unsigned int started_auto_step; |
| 133 | unsigned int min_delay; |
| 134 | unsigned int max_drift; |
| 135 | unsigned int step_size; |
| 136 | int quality; |
| 137 | unsigned int check_wrapped; |
Manu Abraham | c59e787 | 2008-10-14 16:34:07 -0300 | [diff] [blame] | 138 | enum dvbfe_search algo_status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 139 | }; |
| 140 | |
Andrew de Quincey | 86f40cc | 2006-03-30 15:53:35 -0300 | [diff] [blame] | 141 | static void dvb_frontend_wakeup(struct dvb_frontend *fe); |
Mauro Carvalho Chehab | a689e36 | 2011-12-22 14:47:48 -0300 | [diff] [blame] | 142 | static int dtv_get_frontend(struct dvb_frontend *fe, |
Mauro Carvalho Chehab | a689e36 | 2011-12-22 14:47:48 -0300 | [diff] [blame] | 143 | struct dvb_frontend_parameters *p_out); |
Chris Rankin | 556a044 | 2012-04-06 18:38:18 -0300 | [diff] [blame] | 144 | static int dtv_property_legacy_params_sync(struct dvb_frontend *fe, |
| 145 | struct dvb_frontend_parameters *p); |
Mauro Carvalho Chehab | a689e36 | 2011-12-22 14:47:48 -0300 | [diff] [blame] | 146 | |
| 147 | static bool has_get_frontend(struct dvb_frontend *fe) |
| 148 | { |
Hans Petter Selasky | c065f5b | 2012-03-27 12:53:19 -0300 | [diff] [blame] | 149 | return fe->ops.get_frontend != NULL; |
Mauro Carvalho Chehab | a689e36 | 2011-12-22 14:47:48 -0300 | [diff] [blame] | 150 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 151 | |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 152 | /* |
| 153 | * Due to DVBv3 API calls, a delivery system should be mapped into one of |
| 154 | * the 4 DVBv3 delivery systems (FE_QPSK, FE_QAM, FE_OFDM or FE_ATSC), |
| 155 | * otherwise, a DVBv3 call will fail. |
| 156 | */ |
| 157 | enum dvbv3_emulation_type { |
| 158 | DVBV3_UNKNOWN, |
| 159 | DVBV3_QPSK, |
| 160 | DVBV3_QAM, |
| 161 | DVBV3_OFDM, |
| 162 | DVBV3_ATSC, |
| 163 | }; |
| 164 | |
| 165 | static enum dvbv3_emulation_type dvbv3_type(u32 delivery_system) |
| 166 | { |
| 167 | switch (delivery_system) { |
| 168 | case SYS_DVBC_ANNEX_A: |
| 169 | case SYS_DVBC_ANNEX_C: |
| 170 | return DVBV3_QAM; |
| 171 | case SYS_DVBS: |
| 172 | case SYS_DVBS2: |
| 173 | case SYS_TURBO: |
| 174 | case SYS_ISDBS: |
| 175 | case SYS_DSS: |
| 176 | return DVBV3_QPSK; |
| 177 | case SYS_DVBT: |
| 178 | case SYS_DVBT2: |
| 179 | case SYS_ISDBT: |
Antti Palosaari | 224b664 | 2012-08-12 22:33:21 -0300 | [diff] [blame] | 180 | case SYS_DTMB: |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 181 | return DVBV3_OFDM; |
| 182 | case SYS_ATSC: |
Michael Krufky | ca68948 | 2012-01-29 15:44:58 -0300 | [diff] [blame] | 183 | case SYS_ATSCMH: |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 184 | case SYS_DVBC_ANNEX_B: |
| 185 | return DVBV3_ATSC; |
| 186 | case SYS_UNDEFINED: |
| 187 | case SYS_ISDBC: |
| 188 | case SYS_DVBH: |
| 189 | case SYS_DAB: |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 190 | default: |
| 191 | /* |
| 192 | * Doesn't know how to emulate those types and/or |
| 193 | * there's no frontend driver from this type yet |
| 194 | * with some emulation code, so, we're not sure yet how |
| 195 | * to handle them, or they're not compatible with a DVBv3 call. |
| 196 | */ |
| 197 | return DVBV3_UNKNOWN; |
| 198 | } |
| 199 | } |
| 200 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 201 | static void dvb_frontend_add_event(struct dvb_frontend *fe, fe_status_t status) |
| 202 | { |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 203 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 204 | struct dvb_fe_events *events = &fepriv->events; |
| 205 | struct dvb_frontend_event *e; |
| 206 | int wp; |
| 207 | |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 208 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 209 | |
Mauro Carvalho Chehab | a689e36 | 2011-12-22 14:47:48 -0300 | [diff] [blame] | 210 | if ((status & FE_HAS_LOCK) && has_get_frontend(fe)) |
Mauro Carvalho Chehab | 7c61d80 | 2011-12-30 11:30:21 -0300 | [diff] [blame] | 211 | dtv_get_frontend(fe, &fepriv->parameters_out); |
Andreas Oberritter | 77b1e2f | 2011-08-04 12:33:15 -0300 | [diff] [blame] | 212 | |
| 213 | mutex_lock(&events->mtx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 214 | |
| 215 | wp = (events->eventw + 1) % MAX_EVENT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 216 | if (wp == events->eventr) { |
| 217 | events->overflow = 1; |
| 218 | events->eventr = (events->eventr + 1) % MAX_EVENT; |
| 219 | } |
| 220 | |
| 221 | e = &events->events[events->eventw]; |
Andreas Oberritter | 77b1e2f | 2011-08-04 12:33:15 -0300 | [diff] [blame] | 222 | e->status = status; |
Andreas Oberritter | a5959db | 2011-05-08 20:03:40 -0300 | [diff] [blame] | 223 | e->parameters = fepriv->parameters_out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 224 | |
| 225 | events->eventw = wp; |
| 226 | |
Matthias Kaehlcke | 03b7612 | 2007-07-30 14:58:10 -0300 | [diff] [blame] | 227 | mutex_unlock(&events->mtx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 228 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 229 | wake_up_interruptible (&events->wait_queue); |
| 230 | } |
| 231 | |
| 232 | static int dvb_frontend_get_event(struct dvb_frontend *fe, |
| 233 | struct dvb_frontend_event *event, int flags) |
| 234 | { |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 235 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 236 | struct dvb_fe_events *events = &fepriv->events; |
| 237 | |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 238 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 239 | |
| 240 | if (events->overflow) { |
| 241 | events->overflow = 0; |
| 242 | return -EOVERFLOW; |
| 243 | } |
| 244 | |
| 245 | if (events->eventw == events->eventr) { |
| 246 | int ret; |
| 247 | |
| 248 | if (flags & O_NONBLOCK) |
| 249 | return -EWOULDBLOCK; |
| 250 | |
| 251 | up(&fepriv->sem); |
| 252 | |
| 253 | ret = wait_event_interruptible (events->wait_queue, |
| 254 | events->eventw != events->eventr); |
| 255 | |
| 256 | if (down_interruptible (&fepriv->sem)) |
| 257 | return -ERESTARTSYS; |
| 258 | |
| 259 | if (ret < 0) |
| 260 | return ret; |
| 261 | } |
| 262 | |
Andreas Oberritter | 77b1e2f | 2011-08-04 12:33:15 -0300 | [diff] [blame] | 263 | mutex_lock(&events->mtx); |
| 264 | *event = events->events[events->eventr]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 265 | events->eventr = (events->eventr + 1) % MAX_EVENT; |
Matthias Kaehlcke | 03b7612 | 2007-07-30 14:58:10 -0300 | [diff] [blame] | 266 | mutex_unlock(&events->mtx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 267 | |
| 268 | return 0; |
| 269 | } |
| 270 | |
Andreas Oberritter | 20640be | 2011-08-04 12:33:14 -0300 | [diff] [blame] | 271 | static void dvb_frontend_clear_events(struct dvb_frontend *fe) |
| 272 | { |
| 273 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
| 274 | struct dvb_fe_events *events = &fepriv->events; |
| 275 | |
| 276 | mutex_lock(&events->mtx); |
| 277 | events->eventr = events->eventw; |
| 278 | mutex_unlock(&events->mtx); |
| 279 | } |
| 280 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 281 | static void dvb_frontend_init(struct dvb_frontend *fe) |
| 282 | { |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 283 | dev_dbg(fe->dvb->device, |
| 284 | "%s: initialising adapter %i frontend %i (%s)...\n", |
| 285 | __func__, fe->dvb->num, fe->id, fe->ops.info.name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 286 | |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 287 | if (fe->ops.init) |
| 288 | fe->ops.init(fe); |
| 289 | if (fe->ops.tuner_ops.init) { |
Manu Abraham | 3b37a15 | 2008-10-20 18:14:14 -0300 | [diff] [blame] | 290 | if (fe->ops.i2c_gate_ctrl) |
| 291 | fe->ops.i2c_gate_ctrl(fe, 1); |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 292 | fe->ops.tuner_ops.init(fe); |
| 293 | if (fe->ops.i2c_gate_ctrl) |
| 294 | fe->ops.i2c_gate_ctrl(fe, 0); |
Andrew de Quincey | 7eef5dd | 2006-04-18 17:47:09 -0300 | [diff] [blame] | 295 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 296 | } |
| 297 | |
Andrew de Quincey | 86f40cc | 2006-03-30 15:53:35 -0300 | [diff] [blame] | 298 | void dvb_frontend_reinitialise(struct dvb_frontend *fe) |
| 299 | { |
| 300 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
| 301 | |
| 302 | fepriv->reinitialise = 1; |
| 303 | dvb_frontend_wakeup(fe); |
| 304 | } |
| 305 | EXPORT_SYMBOL(dvb_frontend_reinitialise); |
| 306 | |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 307 | 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] | 308 | { |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 309 | int q2; |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 310 | struct dvb_frontend *fe = fepriv->dvbdev->priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 311 | |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 312 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 313 | |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 314 | if (locked) |
| 315 | (fepriv->quality) = (fepriv->quality * 220 + 36*256) / 256; |
| 316 | else |
| 317 | (fepriv->quality) = (fepriv->quality * 220 + 0) / 256; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 318 | |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 319 | q2 = fepriv->quality - 128; |
| 320 | q2 *= q2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 321 | |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 322 | fepriv->delay = fepriv->min_delay + q2 * HZ / (128*128); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 323 | } |
| 324 | |
| 325 | /** |
| 326 | * Performs automatic twiddling of frontend parameters. |
| 327 | * |
| 328 | * @param fe The frontend concerned. |
| 329 | * @param check_wrapped Checks if an iteration has completed. DO NOT SET ON THE FIRST ATTEMPT |
| 330 | * @returns Number of complete iterations that have been performed. |
| 331 | */ |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 332 | 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] | 333 | { |
| 334 | int autoinversion; |
| 335 | int ready = 0; |
Janne Grunau | 0188625 | 2009-09-01 19:23:09 -0300 | [diff] [blame] | 336 | int fe_set_err = 0; |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 337 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Mauro Carvalho Chehab | ac3852c | 2011-12-30 09:30:25 -0300 | [diff] [blame] | 338 | struct dtv_frontend_properties *c = &fe->dtv_property_cache, tmp; |
| 339 | int original_inversion = c->inversion; |
| 340 | u32 original_frequency = c->frequency; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 341 | |
| 342 | /* are we using autoinversion? */ |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 343 | autoinversion = ((!(fe->ops.info.caps & FE_CAN_INVERSION_AUTO)) && |
Mauro Carvalho Chehab | ac3852c | 2011-12-30 09:30:25 -0300 | [diff] [blame] | 344 | (c->inversion == INVERSION_AUTO)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 345 | |
| 346 | /* setup parameters correctly */ |
| 347 | while(!ready) { |
| 348 | /* calculate the lnb_drift */ |
| 349 | fepriv->lnb_drift = fepriv->auto_step * fepriv->step_size; |
| 350 | |
| 351 | /* wrap the auto_step if we've exceeded the maximum drift */ |
| 352 | if (fepriv->lnb_drift > fepriv->max_drift) { |
| 353 | fepriv->auto_step = 0; |
| 354 | fepriv->auto_sub_step = 0; |
| 355 | fepriv->lnb_drift = 0; |
| 356 | } |
| 357 | |
| 358 | /* perform inversion and +/- zigzag */ |
| 359 | switch(fepriv->auto_sub_step) { |
| 360 | case 0: |
| 361 | /* try with the current inversion and current drift setting */ |
| 362 | ready = 1; |
| 363 | break; |
| 364 | |
| 365 | case 1: |
| 366 | if (!autoinversion) break; |
| 367 | |
| 368 | fepriv->inversion = (fepriv->inversion == INVERSION_OFF) ? INVERSION_ON : INVERSION_OFF; |
| 369 | ready = 1; |
| 370 | break; |
| 371 | |
| 372 | case 2: |
| 373 | if (fepriv->lnb_drift == 0) break; |
| 374 | |
| 375 | fepriv->lnb_drift = -fepriv->lnb_drift; |
| 376 | ready = 1; |
| 377 | break; |
| 378 | |
| 379 | case 3: |
| 380 | if (fepriv->lnb_drift == 0) break; |
| 381 | if (!autoinversion) break; |
| 382 | |
| 383 | fepriv->inversion = (fepriv->inversion == INVERSION_OFF) ? INVERSION_ON : INVERSION_OFF; |
| 384 | fepriv->lnb_drift = -fepriv->lnb_drift; |
| 385 | ready = 1; |
| 386 | break; |
| 387 | |
| 388 | default: |
| 389 | fepriv->auto_step++; |
| 390 | fepriv->auto_sub_step = -1; /* it'll be incremented to 0 in a moment */ |
| 391 | break; |
| 392 | } |
| 393 | |
| 394 | if (!ready) fepriv->auto_sub_step++; |
| 395 | } |
| 396 | |
| 397 | /* if this attempt would hit where we started, indicate a complete |
| 398 | * iteration has occurred */ |
| 399 | if ((fepriv->auto_step == fepriv->started_auto_step) && |
| 400 | (fepriv->auto_sub_step == 0) && check_wrapped) { |
| 401 | return 1; |
| 402 | } |
| 403 | |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 404 | dev_dbg(fe->dvb->device, "%s: drift:%i inversion:%i auto_step:%i " \ |
| 405 | "auto_sub_step:%i started_auto_step:%i\n", |
| 406 | __func__, fepriv->lnb_drift, fepriv->inversion, |
| 407 | fepriv->auto_step, fepriv->auto_sub_step, |
| 408 | fepriv->started_auto_step); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 409 | |
| 410 | /* set the frontend itself */ |
Mauro Carvalho Chehab | ac3852c | 2011-12-30 09:30:25 -0300 | [diff] [blame] | 411 | c->frequency += fepriv->lnb_drift; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 412 | if (autoinversion) |
Mauro Carvalho Chehab | ac3852c | 2011-12-30 09:30:25 -0300 | [diff] [blame] | 413 | c->inversion = fepriv->inversion; |
| 414 | tmp = *c; |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 415 | if (fe->ops.set_frontend) |
Mauro Carvalho Chehab | bc9cd27 | 2011-12-20 15:31:54 -0300 | [diff] [blame] | 416 | fe_set_err = fe->ops.set_frontend(fe); |
Mauro Carvalho Chehab | ac3852c | 2011-12-30 09:30:25 -0300 | [diff] [blame] | 417 | *c = tmp; |
Janne Grunau | 0188625 | 2009-09-01 19:23:09 -0300 | [diff] [blame] | 418 | if (fe_set_err < 0) { |
| 419 | fepriv->state = FESTATE_ERROR; |
| 420 | return fe_set_err; |
| 421 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 422 | |
Mauro Carvalho Chehab | ac3852c | 2011-12-30 09:30:25 -0300 | [diff] [blame] | 423 | c->frequency = original_frequency; |
| 424 | c->inversion = original_inversion; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 425 | |
| 426 | fepriv->auto_sub_step++; |
| 427 | return 0; |
| 428 | } |
| 429 | |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 430 | static void dvb_frontend_swzigzag(struct dvb_frontend *fe) |
| 431 | { |
Andrew de Quincey | 30d9464 | 2006-11-16 22:12:40 -0300 | [diff] [blame] | 432 | fe_status_t s = 0; |
Janne Grunau | 0188625 | 2009-09-01 19:23:09 -0300 | [diff] [blame] | 433 | int retval = 0; |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 434 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Mauro Carvalho Chehab | ac3852c | 2011-12-30 09:30:25 -0300 | [diff] [blame] | 435 | struct dtv_frontend_properties *c = &fe->dtv_property_cache, tmp; |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 436 | |
| 437 | /* if we've got no parameters, just keep idling */ |
| 438 | if (fepriv->state & FESTATE_IDLE) { |
| 439 | fepriv->delay = 3*HZ; |
| 440 | fepriv->quality = 0; |
| 441 | return; |
| 442 | } |
| 443 | |
| 444 | /* in SCAN mode, we just set the frontend when asked and leave it alone */ |
| 445 | if (fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT) { |
| 446 | if (fepriv->state & FESTATE_RETUNE) { |
Mauro Carvalho Chehab | ac3852c | 2011-12-30 09:30:25 -0300 | [diff] [blame] | 447 | tmp = *c; |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 448 | if (fe->ops.set_frontend) |
Mauro Carvalho Chehab | bc9cd27 | 2011-12-20 15:31:54 -0300 | [diff] [blame] | 449 | retval = fe->ops.set_frontend(fe); |
Mauro Carvalho Chehab | ac3852c | 2011-12-30 09:30:25 -0300 | [diff] [blame] | 450 | *c = tmp; |
Janne Grunau | 0188625 | 2009-09-01 19:23:09 -0300 | [diff] [blame] | 451 | if (retval < 0) |
| 452 | fepriv->state = FESTATE_ERROR; |
| 453 | else |
| 454 | fepriv->state = FESTATE_TUNED; |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 455 | } |
| 456 | fepriv->delay = 3*HZ; |
| 457 | fepriv->quality = 0; |
| 458 | return; |
| 459 | } |
| 460 | |
| 461 | /* get the frontend status */ |
| 462 | if (fepriv->state & FESTATE_RETUNE) { |
| 463 | s = 0; |
| 464 | } else { |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 465 | if (fe->ops.read_status) |
| 466 | fe->ops.read_status(fe, &s); |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 467 | if (s != fepriv->status) { |
| 468 | dvb_frontend_add_event(fe, s); |
| 469 | fepriv->status = s; |
| 470 | } |
| 471 | } |
| 472 | |
| 473 | /* if we're not tuned, and we have a lock, move to the TUNED state */ |
| 474 | if ((fepriv->state & FESTATE_WAITFORLOCK) && (s & FE_HAS_LOCK)) { |
| 475 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); |
| 476 | fepriv->state = FESTATE_TUNED; |
| 477 | |
| 478 | /* if we're tuned, then we have determined the correct inversion */ |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 479 | if ((!(fe->ops.info.caps & FE_CAN_INVERSION_AUTO)) && |
Mauro Carvalho Chehab | ac3852c | 2011-12-30 09:30:25 -0300 | [diff] [blame] | 480 | (c->inversion == INVERSION_AUTO)) { |
| 481 | c->inversion = fepriv->inversion; |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 482 | } |
| 483 | return; |
| 484 | } |
| 485 | |
| 486 | /* if we are tuned already, check we're still locked */ |
| 487 | if (fepriv->state & FESTATE_TUNED) { |
| 488 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); |
| 489 | |
| 490 | /* we're tuned, and the lock is still good... */ |
| 491 | if (s & FE_HAS_LOCK) { |
| 492 | return; |
| 493 | } else { /* if we _WERE_ tuned, but now don't have a lock */ |
| 494 | fepriv->state = FESTATE_ZIGZAG_FAST; |
| 495 | fepriv->started_auto_step = fepriv->auto_step; |
| 496 | fepriv->check_wrapped = 0; |
| 497 | } |
| 498 | } |
| 499 | |
| 500 | /* don't actually do anything if we're in the LOSTLOCK state, |
| 501 | * the frontend is set to FE_CAN_RECOVER, and the max_drift is 0 */ |
| 502 | if ((fepriv->state & FESTATE_LOSTLOCK) && |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 503 | (fe->ops.info.caps & FE_CAN_RECOVER) && (fepriv->max_drift == 0)) { |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 504 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); |
| 505 | return; |
| 506 | } |
| 507 | |
| 508 | /* don't do anything if we're in the DISEQC state, since this |
| 509 | * might be someone with a motorized dish controlled by DISEQC. |
| 510 | * If its actually a re-tune, there will be a SET_FRONTEND soon enough. */ |
| 511 | if (fepriv->state & FESTATE_DISEQC) { |
| 512 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); |
| 513 | return; |
| 514 | } |
| 515 | |
| 516 | /* if we're in the RETUNE state, set everything up for a brand |
| 517 | * new scan, keeping the current inversion setting, as the next |
| 518 | * tune is _very_ likely to require the same */ |
| 519 | if (fepriv->state & FESTATE_RETUNE) { |
| 520 | fepriv->lnb_drift = 0; |
| 521 | fepriv->auto_step = 0; |
| 522 | fepriv->auto_sub_step = 0; |
| 523 | fepriv->started_auto_step = 0; |
| 524 | fepriv->check_wrapped = 0; |
| 525 | } |
| 526 | |
| 527 | /* fast zigzag. */ |
| 528 | if ((fepriv->state & FESTATE_SEARCHING_FAST) || (fepriv->state & FESTATE_RETUNE)) { |
| 529 | fepriv->delay = fepriv->min_delay; |
| 530 | |
Guillaume Audirac | 2030c03 | 2010-05-06 09:30:25 -0300 | [diff] [blame] | 531 | /* perform a tune */ |
Janne Grunau | 0188625 | 2009-09-01 19:23:09 -0300 | [diff] [blame] | 532 | retval = dvb_frontend_swzigzag_autotune(fe, |
| 533 | fepriv->check_wrapped); |
| 534 | if (retval < 0) { |
| 535 | return; |
| 536 | } else if (retval) { |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 537 | /* OK, if we've run out of trials at the fast speed. |
| 538 | * Drop back to slow for the _next_ attempt */ |
| 539 | fepriv->state = FESTATE_SEARCHING_SLOW; |
| 540 | fepriv->started_auto_step = fepriv->auto_step; |
| 541 | return; |
| 542 | } |
| 543 | fepriv->check_wrapped = 1; |
| 544 | |
| 545 | /* if we've just retuned, enter the ZIGZAG_FAST state. |
| 546 | * This ensures we cannot return from an |
| 547 | * FE_SET_FRONTEND ioctl before the first frontend tune |
| 548 | * occurs */ |
| 549 | if (fepriv->state & FESTATE_RETUNE) { |
| 550 | fepriv->state = FESTATE_TUNING_FAST; |
| 551 | } |
| 552 | } |
| 553 | |
| 554 | /* slow zigzag */ |
| 555 | if (fepriv->state & FESTATE_SEARCHING_SLOW) { |
| 556 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); |
| 557 | |
| 558 | /* Note: don't bother checking for wrapping; we stay in this |
| 559 | * state until we get a lock */ |
| 560 | dvb_frontend_swzigzag_autotune(fe, 0); |
| 561 | } |
| 562 | } |
| 563 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 564 | static int dvb_frontend_is_exiting(struct dvb_frontend *fe) |
| 565 | { |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 566 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 567 | |
matthieu castet | e36309f | 2010-05-05 15:59:20 -0300 | [diff] [blame] | 568 | if (fepriv->exit != DVB_FE_NO_EXIT) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 569 | return 1; |
| 570 | |
| 571 | if (fepriv->dvbdev->writers == 1) |
Andreas Oberritter | b9d5efc | 2011-12-09 21:37:00 -0300 | [diff] [blame] | 572 | if (time_after_eq(jiffies, fepriv->release_jiffies + |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 573 | dvb_shutdown_timeout * HZ)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 574 | return 1; |
| 575 | |
| 576 | return 0; |
| 577 | } |
| 578 | |
| 579 | static int dvb_frontend_should_wakeup(struct dvb_frontend *fe) |
| 580 | { |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 581 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 582 | |
| 583 | if (fepriv->wakeup) { |
| 584 | fepriv->wakeup = 0; |
| 585 | return 1; |
| 586 | } |
| 587 | return dvb_frontend_is_exiting(fe); |
| 588 | } |
| 589 | |
| 590 | static void dvb_frontend_wakeup(struct dvb_frontend *fe) |
| 591 | { |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 592 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 593 | |
| 594 | fepriv->wakeup = 1; |
| 595 | wake_up_interruptible(&fepriv->wait_queue); |
| 596 | } |
| 597 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 598 | static int dvb_frontend_thread(void *data) |
| 599 | { |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 600 | struct dvb_frontend *fe = data; |
| 601 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 602 | fe_status_t s; |
Manu Abraham | c59e787 | 2008-10-14 16:34:07 -0300 | [diff] [blame] | 603 | enum dvbfe_algo algo; |
| 604 | |
Mauro Carvalho Chehab | 7e07222 | 2011-12-26 17:48:33 -0300 | [diff] [blame] | 605 | bool re_tune = false; |
Juergen Lock | 6ae2322 | 2012-12-23 17:23:06 -0300 | [diff] [blame] | 606 | bool semheld = false; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 607 | |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 608 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 609 | |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 610 | fepriv->check_wrapped = 0; |
| 611 | fepriv->quality = 0; |
| 612 | fepriv->delay = 3*HZ; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 613 | fepriv->status = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 614 | fepriv->wakeup = 0; |
Andrew de Quincey | 04c56d0 | 2006-07-10 03:34:14 -0300 | [diff] [blame] | 615 | fepriv->reinitialise = 0; |
| 616 | |
| 617 | dvb_frontend_init(fe); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 618 | |
Rafael J. Wysocki | 8314418 | 2007-07-17 04:03:35 -0700 | [diff] [blame] | 619 | set_freezable(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 620 | while (1) { |
| 621 | up(&fepriv->sem); /* is locked when we enter the thread... */ |
akpm@linux-foundation.org | 6591691 | 2007-02-08 14:36:57 -0300 | [diff] [blame] | 622 | restart: |
Hans Verkuil | 94238e9 | 2011-08-27 11:30:25 -0300 | [diff] [blame] | 623 | wait_event_interruptible_timeout(fepriv->wait_queue, |
Rafael J. Wysocki | e42837b | 2007-10-18 03:04:45 -0700 | [diff] [blame] | 624 | dvb_frontend_should_wakeup(fe) || kthread_should_stop() |
| 625 | || freezing(current), |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 626 | fepriv->delay); |
| 627 | |
| 628 | if (kthread_should_stop() || dvb_frontend_is_exiting(fe)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 629 | /* got signal or quitting */ |
Juergen Lock | 6ae2322 | 2012-12-23 17:23:06 -0300 | [diff] [blame] | 630 | if (!down_interruptible(&fepriv->sem)) |
| 631 | semheld = true; |
matthieu castet | e36309f | 2010-05-05 15:59:20 -0300 | [diff] [blame] | 632 | fepriv->exit = DVB_FE_NORMAL_EXIT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 633 | break; |
| 634 | } |
| 635 | |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 636 | if (try_to_freeze()) |
akpm@linux-foundation.org | 6591691 | 2007-02-08 14:36:57 -0300 | [diff] [blame] | 637 | goto restart; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 638 | |
| 639 | if (down_interruptible(&fepriv->sem)) |
| 640 | break; |
| 641 | |
Andrew de Quincey | 86f40cc | 2006-03-30 15:53:35 -0300 | [diff] [blame] | 642 | if (fepriv->reinitialise) { |
| 643 | dvb_frontend_init(fe); |
Andreas Oberritter | 42f4e77 | 2011-08-24 14:33:52 -0300 | [diff] [blame] | 644 | if (fe->ops.set_tone && fepriv->tone != -1) |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 645 | fe->ops.set_tone(fe, fepriv->tone); |
Andreas Oberritter | 42f4e77 | 2011-08-24 14:33:52 -0300 | [diff] [blame] | 646 | if (fe->ops.set_voltage && fepriv->voltage != -1) |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 647 | fe->ops.set_voltage(fe, fepriv->voltage); |
Andrew de Quincey | 86f40cc | 2006-03-30 15:53:35 -0300 | [diff] [blame] | 648 | fepriv->reinitialise = 0; |
| 649 | } |
| 650 | |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 651 | /* do an iteration of the tuning loop */ |
Manu Abraham | d772bd0 | 2006-06-24 11:18:58 -0300 | [diff] [blame] | 652 | if (fe->ops.get_frontend_algo) { |
Manu Abraham | c59e787 | 2008-10-14 16:34:07 -0300 | [diff] [blame] | 653 | algo = fe->ops.get_frontend_algo(fe); |
| 654 | switch (algo) { |
| 655 | case DVBFE_ALGO_HW: |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 656 | 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] | 657 | |
Manu Abraham | d772bd0 | 2006-06-24 11:18:58 -0300 | [diff] [blame] | 658 | if (fepriv->state & FESTATE_RETUNE) { |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 659 | 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] | 660 | re_tune = true; |
Manu Abraham | d772bd0 | 2006-06-24 11:18:58 -0300 | [diff] [blame] | 661 | fepriv->state = FESTATE_TUNED; |
Simon Arlott | 45145b6 | 2012-02-06 17:57:01 -0300 | [diff] [blame] | 662 | } else { |
| 663 | re_tune = false; |
Manu Abraham | d772bd0 | 2006-06-24 11:18:58 -0300 | [diff] [blame] | 664 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 665 | |
Manu Abraham | c59e787 | 2008-10-14 16:34:07 -0300 | [diff] [blame] | 666 | if (fe->ops.tune) |
Mauro Carvalho Chehab | 7e07222 | 2011-12-26 17:48:33 -0300 | [diff] [blame] | 667 | 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] | 668 | |
Darron Broad | 2fac9a0 | 2008-12-18 06:27:50 -0300 | [diff] [blame] | 669 | if (s != fepriv->status && !(fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT)) { |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 670 | 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] | 671 | dvb_frontend_add_event(fe, s); |
| 672 | fepriv->status = s; |
| 673 | } |
Manu Abraham | c59e787 | 2008-10-14 16:34:07 -0300 | [diff] [blame] | 674 | break; |
| 675 | case DVBFE_ALGO_SW: |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 676 | 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] | 677 | dvb_frontend_swzigzag(fe); |
Manu Abraham | c59e787 | 2008-10-14 16:34:07 -0300 | [diff] [blame] | 678 | break; |
| 679 | case DVBFE_ALGO_CUSTOM: |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 680 | 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] | 681 | if (fepriv->state & FESTATE_RETUNE) { |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 682 | dev_dbg(fe->dvb->device, "%s: Retune requested, FESTAT_RETUNE\n", __func__); |
Manu Abraham | c59e787 | 2008-10-14 16:34:07 -0300 | [diff] [blame] | 683 | fepriv->state = FESTATE_TUNED; |
| 684 | } |
| 685 | /* Case where we are going to search for a carrier |
| 686 | * User asked us to retune again for some reason, possibly |
| 687 | * requesting a search with a new set of parameters |
| 688 | */ |
| 689 | if (fepriv->algo_status & DVBFE_ALGO_SEARCH_AGAIN) { |
Arvo Jarve | 7bcbdf3 | 2008-10-20 06:05:21 -0300 | [diff] [blame] | 690 | if (fe->ops.search) { |
Mauro Carvalho Chehab | 41da532 | 2011-12-26 18:03:12 -0300 | [diff] [blame] | 691 | fepriv->algo_status = fe->ops.search(fe); |
Manu Abraham | c59e787 | 2008-10-14 16:34:07 -0300 | [diff] [blame] | 692 | /* We did do a search as was requested, the flags are |
| 693 | * now unset as well and has the flags wrt to search. |
| 694 | */ |
Arvo Jarve | 7bcbdf3 | 2008-10-20 06:05:21 -0300 | [diff] [blame] | 695 | } else { |
| 696 | fepriv->algo_status &= ~DVBFE_ALGO_SEARCH_AGAIN; |
| 697 | } |
Manu Abraham | c59e787 | 2008-10-14 16:34:07 -0300 | [diff] [blame] | 698 | } |
| 699 | /* Track the carrier if the search was successful */ |
Mauro Carvalho Chehab | 1b5d871 | 2011-12-26 18:11:25 -0300 | [diff] [blame] | 700 | if (fepriv->algo_status != DVBFE_ALGO_SEARCH_SUCCESS) { |
Arvo Jarve | 7bcbdf3 | 2008-10-20 06:05:21 -0300 | [diff] [blame] | 701 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; |
| 702 | fepriv->delay = HZ / 2; |
| 703 | } |
Chris Rankin | 556a044 | 2012-04-06 18:38:18 -0300 | [diff] [blame] | 704 | dtv_property_legacy_params_sync(fe, &fepriv->parameters_out); |
Arvo Jarve | 7bcbdf3 | 2008-10-20 06:05:21 -0300 | [diff] [blame] | 705 | fe->ops.read_status(fe, &s); |
| 706 | if (s != fepriv->status) { |
| 707 | dvb_frontend_add_event(fe, s); /* update event list */ |
| 708 | fepriv->status = s; |
| 709 | if (!(s & FE_HAS_LOCK)) { |
| 710 | fepriv->delay = HZ / 10; |
| 711 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; |
| 712 | } else { |
| 713 | fepriv->delay = 60 * HZ; |
| 714 | } |
Manu Abraham | c59e787 | 2008-10-14 16:34:07 -0300 | [diff] [blame] | 715 | } |
| 716 | break; |
| 717 | default: |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 718 | dev_dbg(fe->dvb->device, "%s: UNDEFINED ALGO !\n", __func__); |
Manu Abraham | c59e787 | 2008-10-14 16:34:07 -0300 | [diff] [blame] | 719 | break; |
| 720 | } |
| 721 | } else { |
Manu Abraham | 4a4edcc | 2006-06-25 05:46:26 -0300 | [diff] [blame] | 722 | dvb_frontend_swzigzag(fe); |
Manu Abraham | c59e787 | 2008-10-14 16:34:07 -0300 | [diff] [blame] | 723 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 724 | } |
| 725 | |
Oliver Endriss | 608f62d | 2007-08-25 13:17:53 -0300 | [diff] [blame] | 726 | if (dvb_powerdown_on_sleep) { |
| 727 | if (fe->ops.set_voltage) |
| 728 | fe->ops.set_voltage(fe, SEC_VOLTAGE_OFF); |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 729 | if (fe->ops.tuner_ops.sleep) { |
Devin Heitmueller | 41286d9 | 2008-11-16 00:44:52 -0300 | [diff] [blame] | 730 | if (fe->ops.i2c_gate_ctrl) |
| 731 | fe->ops.i2c_gate_ctrl(fe, 1); |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 732 | fe->ops.tuner_ops.sleep(fe); |
| 733 | if (fe->ops.i2c_gate_ctrl) |
| 734 | fe->ops.i2c_gate_ctrl(fe, 0); |
Andrew de Quincey | 7eef5dd | 2006-04-18 17:47:09 -0300 | [diff] [blame] | 735 | } |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 736 | if (fe->ops.sleep) |
| 737 | fe->ops.sleep(fe); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 738 | } |
| 739 | |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 740 | fepriv->thread = NULL; |
matthieu castet | e36309f | 2010-05-05 15:59:20 -0300 | [diff] [blame] | 741 | if (kthread_should_stop()) |
| 742 | fepriv->exit = DVB_FE_DEVICE_REMOVED; |
| 743 | else |
| 744 | fepriv->exit = DVB_FE_NO_EXIT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 745 | mb(); |
| 746 | |
Juergen Lock | 6ae2322 | 2012-12-23 17:23:06 -0300 | [diff] [blame] | 747 | if (semheld) |
| 748 | up(&fepriv->sem); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 749 | dvb_frontend_wakeup(fe); |
| 750 | return 0; |
| 751 | } |
| 752 | |
| 753 | static void dvb_frontend_stop(struct dvb_frontend *fe) |
| 754 | { |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 755 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 756 | |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 757 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 758 | |
matthieu castet | e36309f | 2010-05-05 15:59:20 -0300 | [diff] [blame] | 759 | fepriv->exit = DVB_FE_NORMAL_EXIT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 760 | mb(); |
| 761 | |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 762 | if (!fepriv->thread) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 763 | return; |
| 764 | |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 765 | kthread_stop(fepriv->thread); |
Markus Rechberger | ca5be9c | 2007-04-14 10:18:58 -0300 | [diff] [blame] | 766 | |
Thomas Gleixner | a0a4714 | 2010-09-07 11:33:27 -0300 | [diff] [blame] | 767 | sema_init(&fepriv->sem, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 768 | fepriv->state = FESTATE_IDLE; |
| 769 | |
| 770 | /* paranoia check in case a signal arrived */ |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 771 | if (fepriv->thread) |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 772 | dev_warn(fe->dvb->device, |
| 773 | "dvb_frontend_stop: warning: thread %p won't exit\n", |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 774 | fepriv->thread); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 775 | } |
| 776 | |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 777 | s32 timeval_usec_diff(struct timeval lasttime, struct timeval curtime) |
| 778 | { |
| 779 | return ((curtime.tv_usec < lasttime.tv_usec) ? |
| 780 | 1000000 - lasttime.tv_usec + curtime.tv_usec : |
| 781 | curtime.tv_usec - lasttime.tv_usec); |
| 782 | } |
| 783 | EXPORT_SYMBOL(timeval_usec_diff); |
| 784 | |
| 785 | static inline void timeval_usec_add(struct timeval *curtime, u32 add_usec) |
| 786 | { |
| 787 | curtime->tv_usec += add_usec; |
| 788 | if (curtime->tv_usec >= 1000000) { |
| 789 | curtime->tv_usec -= 1000000; |
| 790 | curtime->tv_sec++; |
| 791 | } |
| 792 | } |
| 793 | |
| 794 | /* |
| 795 | * Sleep until gettimeofday() > waketime + add_usec |
| 796 | * This needs to be as precise as possible, but as the delay is |
| 797 | * usually between 2ms and 32ms, it is done using a scheduled msleep |
| 798 | * followed by usleep (normally a busy-wait loop) for the remainder |
| 799 | */ |
| 800 | void dvb_frontend_sleep_until(struct timeval *waketime, u32 add_usec) |
| 801 | { |
| 802 | struct timeval lasttime; |
| 803 | s32 delta, newdelta; |
| 804 | |
| 805 | timeval_usec_add(waketime, add_usec); |
| 806 | |
| 807 | do_gettimeofday(&lasttime); |
| 808 | delta = timeval_usec_diff(lasttime, *waketime); |
| 809 | if (delta > 2500) { |
| 810 | msleep((delta - 1500) / 1000); |
| 811 | do_gettimeofday(&lasttime); |
| 812 | newdelta = timeval_usec_diff(lasttime, *waketime); |
| 813 | delta = (newdelta > delta) ? 0 : newdelta; |
| 814 | } |
| 815 | if (delta > 0) |
| 816 | udelay(delta); |
| 817 | } |
| 818 | EXPORT_SYMBOL(dvb_frontend_sleep_until); |
| 819 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 820 | static int dvb_frontend_start(struct dvb_frontend *fe) |
| 821 | { |
| 822 | int ret; |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 823 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 824 | struct task_struct *fe_thread; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 825 | |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 826 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 827 | |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 828 | if (fepriv->thread) { |
matthieu castet | e36309f | 2010-05-05 15:59:20 -0300 | [diff] [blame] | 829 | if (fepriv->exit == DVB_FE_NO_EXIT) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 830 | return 0; |
| 831 | else |
| 832 | dvb_frontend_stop (fe); |
| 833 | } |
| 834 | |
| 835 | if (signal_pending(current)) |
| 836 | return -EINTR; |
| 837 | if (down_interruptible (&fepriv->sem)) |
| 838 | return -EINTR; |
| 839 | |
| 840 | fepriv->state = FESTATE_IDLE; |
matthieu castet | e36309f | 2010-05-05 15:59:20 -0300 | [diff] [blame] | 841 | fepriv->exit = DVB_FE_NO_EXIT; |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 842 | fepriv->thread = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 843 | mb(); |
| 844 | |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 845 | fe_thread = kthread_run(dvb_frontend_thread, fe, |
Steven Toth | 363c35f | 2008-10-11 11:05:50 -0300 | [diff] [blame] | 846 | "kdvb-ad-%i-fe-%i", fe->dvb->num,fe->id); |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 847 | if (IS_ERR(fe_thread)) { |
| 848 | ret = PTR_ERR(fe_thread); |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 849 | dev_warn(fe->dvb->device, |
| 850 | "dvb_frontend_start: failed to start kthread (%d)\n", |
| 851 | ret); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 852 | up(&fepriv->sem); |
| 853 | return ret; |
| 854 | } |
Herbert Poetzl | 8eec142 | 2007-02-08 14:32:43 -0300 | [diff] [blame] | 855 | fepriv->thread = fe_thread; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 856 | return 0; |
| 857 | } |
| 858 | |
Guillaume Audirac | 2030c03 | 2010-05-06 09:30:25 -0300 | [diff] [blame] | 859 | static void dvb_frontend_get_frequency_limits(struct dvb_frontend *fe, |
Oliver Endriss | c471b33 | 2007-08-09 01:03:42 -0300 | [diff] [blame] | 860 | u32 *freq_min, u32 *freq_max) |
| 861 | { |
| 862 | *freq_min = max(fe->ops.info.frequency_min, fe->ops.tuner_ops.info.frequency_min); |
| 863 | |
| 864 | if (fe->ops.info.frequency_max == 0) |
| 865 | *freq_max = fe->ops.tuner_ops.info.frequency_max; |
| 866 | else if (fe->ops.tuner_ops.info.frequency_max == 0) |
| 867 | *freq_max = fe->ops.info.frequency_max; |
| 868 | else |
| 869 | *freq_max = min(fe->ops.info.frequency_max, fe->ops.tuner_ops.info.frequency_max); |
| 870 | |
| 871 | if (*freq_min == 0 || *freq_max == 0) |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 872 | dev_warn(fe->dvb->device, "DVB: adapter %i frontend %u frequency limits undefined - fix the driver\n", |
| 873 | fe->dvb->num, fe->id); |
Oliver Endriss | c471b33 | 2007-08-09 01:03:42 -0300 | [diff] [blame] | 874 | } |
| 875 | |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 876 | static int dvb_frontend_check_parameters(struct dvb_frontend *fe) |
Oliver Endriss | 1fab46f | 2007-07-23 21:00:36 -0300 | [diff] [blame] | 877 | { |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 878 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
Oliver Endriss | c471b33 | 2007-08-09 01:03:42 -0300 | [diff] [blame] | 879 | u32 freq_min; |
| 880 | u32 freq_max; |
| 881 | |
Oliver Endriss | 1fab46f | 2007-07-23 21:00:36 -0300 | [diff] [blame] | 882 | /* range check: frequency */ |
Guillaume Audirac | 2030c03 | 2010-05-06 09:30:25 -0300 | [diff] [blame] | 883 | dvb_frontend_get_frequency_limits(fe, &freq_min, &freq_max); |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 884 | if ((freq_min && c->frequency < freq_min) || |
| 885 | (freq_max && c->frequency > freq_max)) { |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 886 | dev_warn(fe->dvb->device, "DVB: adapter %i frontend %i frequency %u out of range (%u..%u)\n", |
| 887 | fe->dvb->num, fe->id, c->frequency, |
| 888 | freq_min, freq_max); |
Oliver Endriss | 1fab46f | 2007-07-23 21:00:36 -0300 | [diff] [blame] | 889 | return -EINVAL; |
| 890 | } |
| 891 | |
| 892 | /* range check: symbol rate */ |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 893 | switch (c->delivery_system) { |
| 894 | case SYS_DVBS: |
| 895 | case SYS_DVBS2: |
| 896 | case SYS_TURBO: |
| 897 | case SYS_DVBC_ANNEX_A: |
| 898 | case SYS_DVBC_ANNEX_C: |
Oliver Endriss | 1fab46f | 2007-07-23 21:00:36 -0300 | [diff] [blame] | 899 | if ((fe->ops.info.symbol_rate_min && |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 900 | c->symbol_rate < fe->ops.info.symbol_rate_min) || |
Oliver Endriss | 1fab46f | 2007-07-23 21:00:36 -0300 | [diff] [blame] | 901 | (fe->ops.info.symbol_rate_max && |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 902 | c->symbol_rate > fe->ops.info.symbol_rate_max)) { |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 903 | dev_warn(fe->dvb->device, "DVB: adapter %i frontend %i symbol rate %u out of range (%u..%u)\n", |
| 904 | fe->dvb->num, fe->id, c->symbol_rate, |
| 905 | fe->ops.info.symbol_rate_min, |
| 906 | fe->ops.info.symbol_rate_max); |
Oliver Endriss | 1fab46f | 2007-07-23 21:00:36 -0300 | [diff] [blame] | 907 | return -EINVAL; |
| 908 | } |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 909 | default: |
| 910 | break; |
Oliver Endriss | 1fab46f | 2007-07-23 21:00:36 -0300 | [diff] [blame] | 911 | } |
| 912 | |
| 913 | return 0; |
| 914 | } |
| 915 | |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 916 | static int dvb_frontend_clear_cache(struct dvb_frontend *fe) |
| 917 | { |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 918 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 919 | int i; |
Mauro Carvalho Chehab | 149709f | 2012-01-13 11:46:36 -0200 | [diff] [blame] | 920 | u32 delsys; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 921 | |
Mauro Carvalho Chehab | 149709f | 2012-01-13 11:46:36 -0200 | [diff] [blame] | 922 | delsys = c->delivery_system; |
Mauro Carvalho Chehab | 808d24d | 2013-03-20 10:39:31 -0300 | [diff] [blame] | 923 | memset(c, 0, offsetof(struct dtv_frontend_properties, strength)); |
Mauro Carvalho Chehab | 149709f | 2012-01-13 11:46:36 -0200 | [diff] [blame] | 924 | c->delivery_system = delsys; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 925 | |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 926 | c->state = DTV_CLEAR; |
Mauro Carvalho Chehab | 26c924f | 2012-01-01 16:11:10 -0300 | [diff] [blame] | 927 | |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 928 | dev_dbg(fe->dvb->device, "%s: Clearing cache for delivery system %d\n", |
| 929 | __func__, c->delivery_system); |
Mauro Carvalho Chehab | 26c924f | 2012-01-01 16:11:10 -0300 | [diff] [blame] | 930 | |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 931 | c->transmission_mode = TRANSMISSION_MODE_AUTO; |
Mauro Carvalho Chehab | 26c924f | 2012-01-01 16:11:10 -0300 | [diff] [blame] | 932 | c->bandwidth_hz = 0; /* AUTO */ |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 933 | c->guard_interval = GUARD_INTERVAL_AUTO; |
| 934 | c->hierarchy = HIERARCHY_AUTO; |
Mauro Carvalho Chehab | 26c924f | 2012-01-01 16:11:10 -0300 | [diff] [blame] | 935 | c->symbol_rate = 0; |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 936 | c->code_rate_HP = FEC_AUTO; |
| 937 | c->code_rate_LP = FEC_AUTO; |
Mauro Carvalho Chehab | 26c924f | 2012-01-01 16:11:10 -0300 | [diff] [blame] | 938 | c->fec_inner = FEC_AUTO; |
Mauro Carvalho Chehab | 39ce61a | 2011-11-11 12:46:23 -0200 | [diff] [blame] | 939 | c->rolloff = ROLLOFF_AUTO; |
Mauro Carvalho Chehab | 26c924f | 2012-01-01 16:11:10 -0300 | [diff] [blame] | 940 | c->voltage = SEC_VOLTAGE_OFF; |
Mauro Carvalho Chehab | 26c924f | 2012-01-01 16:11:10 -0300 | [diff] [blame] | 941 | c->sectone = SEC_TONE_OFF; |
| 942 | c->pilot = PILOT_AUTO; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 943 | |
Mauro Carvalho Chehab | a520ca9 | 2012-01-01 16:11:15 -0300 | [diff] [blame] | 944 | c->isdbt_partial_reception = 0; |
| 945 | c->isdbt_sb_mode = 0; |
| 946 | c->isdbt_sb_subchannel = 0; |
| 947 | c->isdbt_sb_segment_idx = 0; |
| 948 | c->isdbt_sb_segment_count = 0; |
| 949 | c->isdbt_layer_enabled = 0; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 950 | for (i = 0; i < 3; i++) { |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 951 | c->layer[i].fec = FEC_AUTO; |
| 952 | c->layer[i].modulation = QAM_AUTO; |
Mauro Carvalho Chehab | a520ca9 | 2012-01-01 16:11:15 -0300 | [diff] [blame] | 953 | c->layer[i].interleaving = 0; |
| 954 | c->layer[i].segment_count = 0; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 955 | } |
| 956 | |
Evgeny Plehov | 287cefd | 2012-09-13 10:13:30 -0300 | [diff] [blame] | 957 | c->stream_id = NO_STREAM_ID_FILTER; |
Mauro Carvalho Chehab | 26c924f | 2012-01-01 16:11:10 -0300 | [diff] [blame] | 958 | |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 959 | switch (c->delivery_system) { |
| 960 | case SYS_DVBS: |
| 961 | case SYS_DVBS2: |
| 962 | case SYS_TURBO: |
| 963 | c->modulation = QPSK; /* implied for DVB-S in legacy API */ |
| 964 | c->rolloff = ROLLOFF_35;/* implied for DVB-S */ |
| 965 | break; |
| 966 | case SYS_ATSC: |
| 967 | c->modulation = VSB_8; |
| 968 | break; |
| 969 | default: |
| 970 | c->modulation = QAM_AUTO; |
| 971 | break; |
| 972 | } |
| 973 | |
Antti Palosaari | 33eebec | 2012-10-03 04:28:56 -0300 | [diff] [blame] | 974 | c->lna = LNA_AUTO; |
| 975 | |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 976 | return 0; |
| 977 | } |
| 978 | |
| 979 | #define _DTV_CMD(n, s, b) \ |
| 980 | [n] = { \ |
| 981 | .name = #n, \ |
| 982 | .cmd = n, \ |
| 983 | .set = s,\ |
| 984 | .buffer = b \ |
| 985 | } |
| 986 | |
Andreas Oberritter | ec05a64 | 2011-05-26 07:54:14 -0300 | [diff] [blame] | 987 | static struct dtv_cmds_h dtv_cmds[DTV_MAX_COMMAND + 1] = { |
Mauro Carvalho Chehab | 06d3a39 | 2009-10-23 20:09:42 -0300 | [diff] [blame] | 988 | _DTV_CMD(DTV_TUNE, 1, 0), |
| 989 | _DTV_CMD(DTV_CLEAR, 1, 0), |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 990 | |
| 991 | /* Set */ |
Mauro Carvalho Chehab | 06d3a39 | 2009-10-23 20:09:42 -0300 | [diff] [blame] | 992 | _DTV_CMD(DTV_FREQUENCY, 1, 0), |
| 993 | _DTV_CMD(DTV_BANDWIDTH_HZ, 1, 0), |
| 994 | _DTV_CMD(DTV_MODULATION, 1, 0), |
| 995 | _DTV_CMD(DTV_INVERSION, 1, 0), |
| 996 | _DTV_CMD(DTV_DISEQC_MASTER, 1, 1), |
| 997 | _DTV_CMD(DTV_SYMBOL_RATE, 1, 0), |
| 998 | _DTV_CMD(DTV_INNER_FEC, 1, 0), |
| 999 | _DTV_CMD(DTV_VOLTAGE, 1, 0), |
| 1000 | _DTV_CMD(DTV_TONE, 1, 0), |
| 1001 | _DTV_CMD(DTV_PILOT, 1, 0), |
| 1002 | _DTV_CMD(DTV_ROLLOFF, 1, 0), |
| 1003 | _DTV_CMD(DTV_DELIVERY_SYSTEM, 1, 0), |
| 1004 | _DTV_CMD(DTV_HIERARCHY, 1, 0), |
| 1005 | _DTV_CMD(DTV_CODE_RATE_HP, 1, 0), |
| 1006 | _DTV_CMD(DTV_CODE_RATE_LP, 1, 0), |
| 1007 | _DTV_CMD(DTV_GUARD_INTERVAL, 1, 0), |
| 1008 | _DTV_CMD(DTV_TRANSMISSION_MODE, 1, 0), |
Antti Palosaari | 224b664 | 2012-08-12 22:33:21 -0300 | [diff] [blame] | 1009 | _DTV_CMD(DTV_INTERLEAVING, 1, 0), |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1010 | |
| 1011 | _DTV_CMD(DTV_ISDBT_PARTIAL_RECEPTION, 1, 0), |
| 1012 | _DTV_CMD(DTV_ISDBT_SOUND_BROADCASTING, 1, 0), |
| 1013 | _DTV_CMD(DTV_ISDBT_SB_SUBCHANNEL_ID, 1, 0), |
| 1014 | _DTV_CMD(DTV_ISDBT_SB_SEGMENT_IDX, 1, 0), |
| 1015 | _DTV_CMD(DTV_ISDBT_SB_SEGMENT_COUNT, 1, 0), |
Patrick Boettcher | e7b7949 | 2009-08-14 05:24:19 -0300 | [diff] [blame] | 1016 | _DTV_CMD(DTV_ISDBT_LAYER_ENABLED, 1, 0), |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1017 | _DTV_CMD(DTV_ISDBT_LAYERA_FEC, 1, 0), |
| 1018 | _DTV_CMD(DTV_ISDBT_LAYERA_MODULATION, 1, 0), |
| 1019 | _DTV_CMD(DTV_ISDBT_LAYERA_SEGMENT_COUNT, 1, 0), |
| 1020 | _DTV_CMD(DTV_ISDBT_LAYERA_TIME_INTERLEAVING, 1, 0), |
| 1021 | _DTV_CMD(DTV_ISDBT_LAYERB_FEC, 1, 0), |
| 1022 | _DTV_CMD(DTV_ISDBT_LAYERB_MODULATION, 1, 0), |
| 1023 | _DTV_CMD(DTV_ISDBT_LAYERB_SEGMENT_COUNT, 1, 0), |
| 1024 | _DTV_CMD(DTV_ISDBT_LAYERB_TIME_INTERLEAVING, 1, 0), |
| 1025 | _DTV_CMD(DTV_ISDBT_LAYERC_FEC, 1, 0), |
| 1026 | _DTV_CMD(DTV_ISDBT_LAYERC_MODULATION, 1, 0), |
| 1027 | _DTV_CMD(DTV_ISDBT_LAYERC_SEGMENT_COUNT, 1, 0), |
| 1028 | _DTV_CMD(DTV_ISDBT_LAYERC_TIME_INTERLEAVING, 1, 0), |
| 1029 | |
Evgeny Plehov | 287cefd | 2012-09-13 10:13:30 -0300 | [diff] [blame] | 1030 | _DTV_CMD(DTV_STREAM_ID, 1, 0), |
| 1031 | _DTV_CMD(DTV_DVBT2_PLP_ID_LEGACY, 1, 0), |
Antti Palosaari | 8a2697a | 2012-07-11 21:54:50 -0300 | [diff] [blame] | 1032 | _DTV_CMD(DTV_LNA, 1, 0), |
HIRANO Takahito | 98293ef | 2009-09-18 11:17:54 -0300 | [diff] [blame] | 1033 | |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1034 | /* Get */ |
Mauro Carvalho Chehab | 06d3a39 | 2009-10-23 20:09:42 -0300 | [diff] [blame] | 1035 | _DTV_CMD(DTV_DISEQC_SLAVE_REPLY, 0, 1), |
| 1036 | _DTV_CMD(DTV_API_VERSION, 0, 0), |
Manu Abraham | ba2780c | 2011-11-13 18:47:44 -0300 | [diff] [blame] | 1037 | |
| 1038 | _DTV_CMD(DTV_ENUM_DELSYS, 0, 0), |
Michael Krufky | ca68948 | 2012-01-29 15:44:58 -0300 | [diff] [blame] | 1039 | |
| 1040 | _DTV_CMD(DTV_ATSCMH_PARADE_ID, 1, 0), |
| 1041 | _DTV_CMD(DTV_ATSCMH_RS_FRAME_ENSEMBLE, 1, 0), |
| 1042 | |
| 1043 | _DTV_CMD(DTV_ATSCMH_FIC_VER, 0, 0), |
Michael Krufky | ca68948 | 2012-01-29 15:44:58 -0300 | [diff] [blame] | 1044 | _DTV_CMD(DTV_ATSCMH_NOG, 0, 0), |
| 1045 | _DTV_CMD(DTV_ATSCMH_TNOG, 0, 0), |
| 1046 | _DTV_CMD(DTV_ATSCMH_SGN, 0, 0), |
| 1047 | _DTV_CMD(DTV_ATSCMH_PRC, 0, 0), |
| 1048 | _DTV_CMD(DTV_ATSCMH_RS_FRAME_MODE, 0, 0), |
Michael Krufky | ca68948 | 2012-01-29 15:44:58 -0300 | [diff] [blame] | 1049 | _DTV_CMD(DTV_ATSCMH_RS_CODE_MODE_PRI, 0, 0), |
| 1050 | _DTV_CMD(DTV_ATSCMH_RS_CODE_MODE_SEC, 0, 0), |
| 1051 | _DTV_CMD(DTV_ATSCMH_SCCC_BLOCK_MODE, 0, 0), |
| 1052 | _DTV_CMD(DTV_ATSCMH_SCCC_CODE_MODE_A, 0, 0), |
| 1053 | _DTV_CMD(DTV_ATSCMH_SCCC_CODE_MODE_B, 0, 0), |
| 1054 | _DTV_CMD(DTV_ATSCMH_SCCC_CODE_MODE_C, 0, 0), |
| 1055 | _DTV_CMD(DTV_ATSCMH_SCCC_CODE_MODE_D, 0, 0), |
Mauro Carvalho Chehab | 7cd4ece | 2013-01-07 15:41:35 -0300 | [diff] [blame] | 1056 | |
| 1057 | /* Statistics API */ |
| 1058 | _DTV_CMD(DTV_STAT_SIGNAL_STRENGTH, 0, 0), |
| 1059 | _DTV_CMD(DTV_STAT_CNR, 0, 0), |
| 1060 | _DTV_CMD(DTV_STAT_PRE_ERROR_BIT_COUNT, 0, 0), |
| 1061 | _DTV_CMD(DTV_STAT_PRE_TOTAL_BIT_COUNT, 0, 0), |
| 1062 | _DTV_CMD(DTV_STAT_POST_ERROR_BIT_COUNT, 0, 0), |
| 1063 | _DTV_CMD(DTV_STAT_POST_TOTAL_BIT_COUNT, 0, 0), |
| 1064 | _DTV_CMD(DTV_STAT_ERROR_BLOCK_COUNT, 0, 0), |
| 1065 | _DTV_CMD(DTV_STAT_TOTAL_BLOCK_COUNT, 0, 0), |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1066 | }; |
| 1067 | |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 1068 | static void dtv_property_dump(struct dvb_frontend *fe, struct dtv_property *tvp) |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1069 | { |
| 1070 | int i; |
| 1071 | |
Mauro Carvalho Chehab | 106ff9e | 2011-07-15 08:49:06 -0300 | [diff] [blame] | 1072 | if (tvp->cmd <= 0 || tvp->cmd > DTV_MAX_COMMAND) { |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 1073 | dev_warn(fe->dvb->device, "%s: tvp.cmd = 0x%08x undefined\n", |
| 1074 | __func__, tvp->cmd); |
Darron Broad | 4aae8ef | 2008-10-03 11:50:00 -0300 | [diff] [blame] | 1075 | return; |
| 1076 | } |
| 1077 | |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 1078 | dev_dbg(fe->dvb->device, "%s: tvp.cmd = 0x%08x (%s)\n", __func__, |
| 1079 | tvp->cmd, dtv_cmds[tvp->cmd].name); |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1080 | |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 1081 | if (dtv_cmds[tvp->cmd].buffer) { |
| 1082 | dev_dbg(fe->dvb->device, "%s: tvp.u.buffer.len = 0x%02x\n", |
| 1083 | __func__, tvp->u.buffer.len); |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1084 | |
| 1085 | for(i = 0; i < tvp->u.buffer.len; i++) |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 1086 | dev_dbg(fe->dvb->device, |
| 1087 | "%s: tvp.u.buffer.data[0x%02x] = 0x%02x\n", |
| 1088 | __func__, i, tvp->u.buffer.data[i]); |
| 1089 | } else { |
| 1090 | dev_dbg(fe->dvb->device, "%s: tvp.u.data = 0x%08x\n", __func__, |
| 1091 | tvp->u.data); |
| 1092 | } |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1093 | } |
| 1094 | |
Steven Toth | ee33c52 | 2008-09-11 23:52:32 -0300 | [diff] [blame] | 1095 | /* Synchronise the legacy tuning parameters into the cache, so that demodulator |
| 1096 | * drivers can use a single set_frontend tuning function, regardless of whether |
| 1097 | * it's being used for the legacy or new API, reducing code and complexity. |
| 1098 | */ |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 1099 | static int dtv_property_cache_sync(struct dvb_frontend *fe, |
| 1100 | struct dtv_frontend_properties *c, |
| 1101 | const struct dvb_frontend_parameters *p) |
Steven Toth | ee33c52 | 2008-09-11 23:52:32 -0300 | [diff] [blame] | 1102 | { |
Steven Toth | ee33c52 | 2008-09-11 23:52:32 -0300 | [diff] [blame] | 1103 | c->frequency = p->frequency; |
| 1104 | c->inversion = p->inversion; |
| 1105 | |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 1106 | switch (dvbv3_type(c->delivery_system)) { |
| 1107 | case DVBV3_QPSK: |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 1108 | dev_dbg(fe->dvb->device, "%s: Preparing QPSK req\n", __func__); |
Steven Toth | ee33c52 | 2008-09-11 23:52:32 -0300 | [diff] [blame] | 1109 | c->symbol_rate = p->u.qpsk.symbol_rate; |
| 1110 | c->fec_inner = p->u.qpsk.fec_inner; |
| 1111 | break; |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 1112 | case DVBV3_QAM: |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 1113 | dev_dbg(fe->dvb->device, "%s: Preparing QAM req\n", __func__); |
Steven Toth | ee33c52 | 2008-09-11 23:52:32 -0300 | [diff] [blame] | 1114 | c->symbol_rate = p->u.qam.symbol_rate; |
| 1115 | c->fec_inner = p->u.qam.fec_inner; |
| 1116 | c->modulation = p->u.qam.modulation; |
| 1117 | break; |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 1118 | case DVBV3_OFDM: |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 1119 | dev_dbg(fe->dvb->device, "%s: Preparing OFDM req\n", __func__); |
| 1120 | |
Mauro Carvalho Chehab | 9a27e6a | 2012-01-01 16:11:11 -0300 | [diff] [blame] | 1121 | switch (p->u.ofdm.bandwidth) { |
| 1122 | case BANDWIDTH_10_MHZ: |
| 1123 | c->bandwidth_hz = 10000000; |
| 1124 | break; |
| 1125 | case BANDWIDTH_8_MHZ: |
Steven Toth | 75b7f94 | 2008-09-13 16:56:34 -0300 | [diff] [blame] | 1126 | c->bandwidth_hz = 8000000; |
Mauro Carvalho Chehab | 9a27e6a | 2012-01-01 16:11:11 -0300 | [diff] [blame] | 1127 | break; |
| 1128 | case BANDWIDTH_7_MHZ: |
| 1129 | c->bandwidth_hz = 7000000; |
| 1130 | break; |
| 1131 | case BANDWIDTH_6_MHZ: |
| 1132 | c->bandwidth_hz = 6000000; |
| 1133 | break; |
| 1134 | case BANDWIDTH_5_MHZ: |
| 1135 | c->bandwidth_hz = 5000000; |
| 1136 | break; |
| 1137 | case BANDWIDTH_1_712_MHZ: |
| 1138 | c->bandwidth_hz = 1712000; |
| 1139 | break; |
| 1140 | case BANDWIDTH_AUTO: |
Steven Toth | 75b7f94 | 2008-09-13 16:56:34 -0300 | [diff] [blame] | 1141 | c->bandwidth_hz = 0; |
Mauro Carvalho Chehab | 9a27e6a | 2012-01-01 16:11:11 -0300 | [diff] [blame] | 1142 | } |
| 1143 | |
Steven Toth | ee33c52 | 2008-09-11 23:52:32 -0300 | [diff] [blame] | 1144 | c->code_rate_HP = p->u.ofdm.code_rate_HP; |
| 1145 | c->code_rate_LP = p->u.ofdm.code_rate_LP; |
| 1146 | c->modulation = p->u.ofdm.constellation; |
| 1147 | c->transmission_mode = p->u.ofdm.transmission_mode; |
| 1148 | c->guard_interval = p->u.ofdm.guard_interval; |
| 1149 | c->hierarchy = p->u.ofdm.hierarchy_information; |
| 1150 | break; |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 1151 | case DVBV3_ATSC: |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 1152 | dev_dbg(fe->dvb->device, "%s: Preparing ATSC req\n", __func__); |
Steven Toth | ee33c52 | 2008-09-11 23:52:32 -0300 | [diff] [blame] | 1153 | c->modulation = p->u.vsb.modulation; |
Michael Krufky | ca68948 | 2012-01-29 15:44:58 -0300 | [diff] [blame] | 1154 | if (c->delivery_system == SYS_ATSCMH) |
| 1155 | break; |
Steven Toth | 80a773c | 2008-09-12 00:53:50 -0300 | [diff] [blame] | 1156 | if ((c->modulation == VSB_8) || (c->modulation == VSB_16)) |
| 1157 | c->delivery_system = SYS_ATSC; |
| 1158 | else |
| 1159 | c->delivery_system = SYS_DVBC_ANNEX_B; |
Steven Toth | ee33c52 | 2008-09-11 23:52:32 -0300 | [diff] [blame] | 1160 | break; |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 1161 | case DVBV3_UNKNOWN: |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 1162 | dev_err(fe->dvb->device, |
| 1163 | "%s: doesn't know how to handle a DVBv3 call to delivery system %i\n", |
| 1164 | __func__, c->delivery_system); |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 1165 | return -EINVAL; |
Steven Toth | ee33c52 | 2008-09-11 23:52:32 -0300 | [diff] [blame] | 1166 | } |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 1167 | |
| 1168 | return 0; |
Steven Toth | ee33c52 | 2008-09-11 23:52:32 -0300 | [diff] [blame] | 1169 | } |
| 1170 | |
Steven Toth | d5748f1 | 2008-09-12 00:27:13 -0300 | [diff] [blame] | 1171 | /* Ensure the cached values are set correctly in the frontend |
| 1172 | * legacy tuning structures, for the advanced tuning API. |
| 1173 | */ |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 1174 | static int dtv_property_legacy_params_sync(struct dvb_frontend *fe, |
Mauro Carvalho Chehab | a689e36 | 2011-12-22 14:47:48 -0300 | [diff] [blame] | 1175 | struct dvb_frontend_parameters *p) |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1176 | { |
Andreas Oberritter | 15cc2bb | 2011-05-08 20:03:35 -0300 | [diff] [blame] | 1177 | const struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1178 | |
Steven Toth | d5748f1 | 2008-09-12 00:27:13 -0300 | [diff] [blame] | 1179 | p->frequency = c->frequency; |
| 1180 | p->inversion = c->inversion; |
| 1181 | |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 1182 | switch (dvbv3_type(c->delivery_system)) { |
| 1183 | case DVBV3_UNKNOWN: |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 1184 | dev_err(fe->dvb->device, |
| 1185 | "%s: doesn't know how to handle a DVBv3 call to delivery system %i\n", |
| 1186 | __func__, c->delivery_system); |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 1187 | return -EINVAL; |
| 1188 | case DVBV3_QPSK: |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 1189 | dev_dbg(fe->dvb->device, "%s: Preparing QPSK req\n", __func__); |
Steven Toth | d5748f1 | 2008-09-12 00:27:13 -0300 | [diff] [blame] | 1190 | p->u.qpsk.symbol_rate = c->symbol_rate; |
| 1191 | p->u.qpsk.fec_inner = c->fec_inner; |
| 1192 | break; |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 1193 | case DVBV3_QAM: |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 1194 | dev_dbg(fe->dvb->device, "%s: Preparing QAM req\n", __func__); |
Steven Toth | d5748f1 | 2008-09-12 00:27:13 -0300 | [diff] [blame] | 1195 | p->u.qam.symbol_rate = c->symbol_rate; |
| 1196 | p->u.qam.fec_inner = c->fec_inner; |
| 1197 | p->u.qam.modulation = c->modulation; |
| 1198 | break; |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 1199 | case DVBV3_OFDM: |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 1200 | dev_dbg(fe->dvb->device, "%s: Preparing OFDM req\n", __func__); |
Mauro Carvalho Chehab | 9a27e6a | 2012-01-01 16:11:11 -0300 | [diff] [blame] | 1201 | switch (c->bandwidth_hz) { |
| 1202 | case 10000000: |
| 1203 | p->u.ofdm.bandwidth = BANDWIDTH_10_MHZ; |
| 1204 | break; |
| 1205 | case 8000000: |
Steven Toth | 75b7f94 | 2008-09-13 16:56:34 -0300 | [diff] [blame] | 1206 | p->u.ofdm.bandwidth = BANDWIDTH_8_MHZ; |
Mauro Carvalho Chehab | 9a27e6a | 2012-01-01 16:11:11 -0300 | [diff] [blame] | 1207 | break; |
| 1208 | case 7000000: |
| 1209 | p->u.ofdm.bandwidth = BANDWIDTH_7_MHZ; |
| 1210 | break; |
| 1211 | case 6000000: |
| 1212 | p->u.ofdm.bandwidth = BANDWIDTH_6_MHZ; |
| 1213 | break; |
| 1214 | case 5000000: |
| 1215 | p->u.ofdm.bandwidth = BANDWIDTH_5_MHZ; |
| 1216 | break; |
| 1217 | case 1712000: |
| 1218 | p->u.ofdm.bandwidth = BANDWIDTH_1_712_MHZ; |
| 1219 | break; |
| 1220 | case 0: |
| 1221 | default: |
Steven Toth | 75b7f94 | 2008-09-13 16:56:34 -0300 | [diff] [blame] | 1222 | p->u.ofdm.bandwidth = BANDWIDTH_AUTO; |
Mauro Carvalho Chehab | 9a27e6a | 2012-01-01 16:11:11 -0300 | [diff] [blame] | 1223 | } |
Steven Toth | d5748f1 | 2008-09-12 00:27:13 -0300 | [diff] [blame] | 1224 | p->u.ofdm.code_rate_HP = c->code_rate_HP; |
| 1225 | p->u.ofdm.code_rate_LP = c->code_rate_LP; |
| 1226 | p->u.ofdm.constellation = c->modulation; |
| 1227 | p->u.ofdm.transmission_mode = c->transmission_mode; |
| 1228 | p->u.ofdm.guard_interval = c->guard_interval; |
| 1229 | p->u.ofdm.hierarchy_information = c->hierarchy; |
| 1230 | break; |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 1231 | case DVBV3_ATSC: |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 1232 | dev_dbg(fe->dvb->device, "%s: Preparing VSB req\n", __func__); |
Steven Toth | d5748f1 | 2008-09-12 00:27:13 -0300 | [diff] [blame] | 1233 | p->u.vsb.modulation = c->modulation; |
| 1234 | break; |
| 1235 | } |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 1236 | return 0; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1237 | } |
| 1238 | |
Mauro Carvalho Chehab | a689e36 | 2011-12-22 14:47:48 -0300 | [diff] [blame] | 1239 | /** |
| 1240 | * dtv_get_frontend - calls a callback for retrieving DTV parameters |
| 1241 | * @fe: struct dvb_frontend pointer |
| 1242 | * @c: struct dtv_frontend_properties pointer (DVBv5 cache) |
| 1243 | * @p_out struct dvb_frontend_parameters pointer (DVBv3 FE struct) |
| 1244 | * |
| 1245 | * This routine calls either the DVBv3 or DVBv5 get_frontend call. |
| 1246 | * If c is not null, it will update the DVBv5 cache struct pointed by it. |
| 1247 | * If p_out is not null, it will update the DVBv3 params pointed by it. |
| 1248 | */ |
| 1249 | static int dtv_get_frontend(struct dvb_frontend *fe, |
Mauro Carvalho Chehab | a689e36 | 2011-12-22 14:47:48 -0300 | [diff] [blame] | 1250 | struct dvb_frontend_parameters *p_out) |
| 1251 | { |
Mauro Carvalho Chehab | a689e36 | 2011-12-22 14:47:48 -0300 | [diff] [blame] | 1252 | int r; |
| 1253 | |
Mauro Carvalho Chehab | a689e36 | 2011-12-22 14:47:48 -0300 | [diff] [blame] | 1254 | if (fe->ops.get_frontend) { |
Mauro Carvalho Chehab | 7c61d80 | 2011-12-30 11:30:21 -0300 | [diff] [blame] | 1255 | r = fe->ops.get_frontend(fe); |
Mauro Carvalho Chehab | a689e36 | 2011-12-22 14:47:48 -0300 | [diff] [blame] | 1256 | if (unlikely(r < 0)) |
| 1257 | return r; |
Mauro Carvalho Chehab | 7c61d80 | 2011-12-30 11:30:21 -0300 | [diff] [blame] | 1258 | if (p_out) |
Mauro Carvalho Chehab | a689e36 | 2011-12-22 14:47:48 -0300 | [diff] [blame] | 1259 | dtv_property_legacy_params_sync(fe, p_out); |
| 1260 | return 0; |
| 1261 | } |
| 1262 | |
Mauro Carvalho Chehab | 7c61d80 | 2011-12-30 11:30:21 -0300 | [diff] [blame] | 1263 | /* As everything is in cache, get_frontend fops are always supported */ |
Mauro Carvalho Chehab | b1e9a6501 | 2011-12-26 16:43:32 -0300 | [diff] [blame] | 1264 | return 0; |
Mauro Carvalho Chehab | a689e36 | 2011-12-22 14:47:48 -0300 | [diff] [blame] | 1265 | } |
| 1266 | |
Arnd Bergmann | 16ef8de | 2010-04-27 00:24:00 +0200 | [diff] [blame] | 1267 | static int dvb_frontend_ioctl_legacy(struct file *file, |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1268 | unsigned int cmd, void *parg); |
Arnd Bergmann | 16ef8de | 2010-04-27 00:24:00 +0200 | [diff] [blame] | 1269 | static int dvb_frontend_ioctl_properties(struct file *file, |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1270 | unsigned int cmd, void *parg); |
| 1271 | |
Mauro Carvalho Chehab | 072ce0c | 2009-01-05 01:19:06 -0300 | [diff] [blame] | 1272 | static int dtv_property_process_get(struct dvb_frontend *fe, |
Mauro Carvalho Chehab | a689e36 | 2011-12-22 14:47:48 -0300 | [diff] [blame] | 1273 | const struct dtv_frontend_properties *c, |
Mauro Carvalho Chehab | 072ce0c | 2009-01-05 01:19:06 -0300 | [diff] [blame] | 1274 | struct dtv_property *tvp, |
Arnd Bergmann | 16ef8de | 2010-04-27 00:24:00 +0200 | [diff] [blame] | 1275 | struct file *file) |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1276 | { |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 1277 | int r, ncaps; |
Steven Toth | bfbf2da | 2008-09-12 01:37:37 -0300 | [diff] [blame] | 1278 | |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1279 | switch(tvp->cmd) { |
Manu Abraham | ba2780c | 2011-11-13 18:47:44 -0300 | [diff] [blame] | 1280 | case DTV_ENUM_DELSYS: |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 1281 | ncaps = 0; |
| 1282 | while (fe->ops.delsys[ncaps] && ncaps < MAX_DELSYS) { |
| 1283 | tvp->u.buffer.data[ncaps] = fe->ops.delsys[ncaps]; |
| 1284 | ncaps++; |
| 1285 | } |
| 1286 | tvp->u.buffer.len = ncaps; |
Manu Abraham | ba2780c | 2011-11-13 18:47:44 -0300 | [diff] [blame] | 1287 | break; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1288 | case DTV_FREQUENCY: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1289 | tvp->u.data = c->frequency; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1290 | break; |
| 1291 | case DTV_MODULATION: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1292 | tvp->u.data = c->modulation; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1293 | break; |
Steven Toth | 75b7f94 | 2008-09-13 16:56:34 -0300 | [diff] [blame] | 1294 | case DTV_BANDWIDTH_HZ: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1295 | tvp->u.data = c->bandwidth_hz; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1296 | break; |
| 1297 | case DTV_INVERSION: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1298 | tvp->u.data = c->inversion; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1299 | break; |
| 1300 | case DTV_SYMBOL_RATE: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1301 | tvp->u.data = c->symbol_rate; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1302 | break; |
| 1303 | case DTV_INNER_FEC: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1304 | tvp->u.data = c->fec_inner; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1305 | break; |
| 1306 | case DTV_PILOT: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1307 | tvp->u.data = c->pilot; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1308 | break; |
| 1309 | case DTV_ROLLOFF: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1310 | tvp->u.data = c->rolloff; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1311 | break; |
| 1312 | case DTV_DELIVERY_SYSTEM: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1313 | tvp->u.data = c->delivery_system; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1314 | break; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1315 | case DTV_VOLTAGE: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1316 | tvp->u.data = c->voltage; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1317 | break; |
| 1318 | case DTV_TONE: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1319 | tvp->u.data = c->sectone; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1320 | break; |
Steven Toth | eacf8d8 | 2008-09-26 00:29:49 -0300 | [diff] [blame] | 1321 | case DTV_API_VERSION: |
| 1322 | tvp->u.data = (DVB_API_VERSION << 8) | DVB_API_VERSION_MINOR; |
| 1323 | break; |
Steven Toth | a4de91b | 2008-10-06 21:55:46 -0300 | [diff] [blame] | 1324 | case DTV_CODE_RATE_HP: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1325 | tvp->u.data = c->code_rate_HP; |
Steven Toth | a4de91b | 2008-10-06 21:55:46 -0300 | [diff] [blame] | 1326 | break; |
| 1327 | case DTV_CODE_RATE_LP: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1328 | tvp->u.data = c->code_rate_LP; |
Steven Toth | a4de91b | 2008-10-06 21:55:46 -0300 | [diff] [blame] | 1329 | break; |
Steven Toth | b87625f | 2008-10-06 21:56:59 -0300 | [diff] [blame] | 1330 | case DTV_GUARD_INTERVAL: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1331 | tvp->u.data = c->guard_interval; |
Steven Toth | b87625f | 2008-10-06 21:56:59 -0300 | [diff] [blame] | 1332 | break; |
| 1333 | case DTV_TRANSMISSION_MODE: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1334 | tvp->u.data = c->transmission_mode; |
Steven Toth | b87625f | 2008-10-06 21:56:59 -0300 | [diff] [blame] | 1335 | break; |
Steven Toth | ef526f4 | 2008-10-06 22:01:47 -0300 | [diff] [blame] | 1336 | case DTV_HIERARCHY: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1337 | tvp->u.data = c->hierarchy; |
Steven Toth | ef526f4 | 2008-10-06 22:01:47 -0300 | [diff] [blame] | 1338 | break; |
Antti Palosaari | 224b664 | 2012-08-12 22:33:21 -0300 | [diff] [blame] | 1339 | case DTV_INTERLEAVING: |
| 1340 | tvp->u.data = c->interleaving; |
| 1341 | break; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1342 | |
| 1343 | /* ISDB-T Support here */ |
| 1344 | case DTV_ISDBT_PARTIAL_RECEPTION: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1345 | tvp->u.data = c->isdbt_partial_reception; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1346 | break; |
| 1347 | case DTV_ISDBT_SOUND_BROADCASTING: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1348 | tvp->u.data = c->isdbt_sb_mode; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1349 | break; |
| 1350 | case DTV_ISDBT_SB_SUBCHANNEL_ID: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1351 | tvp->u.data = c->isdbt_sb_subchannel; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1352 | break; |
| 1353 | case DTV_ISDBT_SB_SEGMENT_IDX: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1354 | tvp->u.data = c->isdbt_sb_segment_idx; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1355 | break; |
| 1356 | case DTV_ISDBT_SB_SEGMENT_COUNT: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1357 | tvp->u.data = c->isdbt_sb_segment_count; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1358 | break; |
Patrick Boettcher | e7b7949 | 2009-08-14 05:24:19 -0300 | [diff] [blame] | 1359 | case DTV_ISDBT_LAYER_ENABLED: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1360 | tvp->u.data = c->isdbt_layer_enabled; |
Patrick Boettcher | e7b7949 | 2009-08-14 05:24:19 -0300 | [diff] [blame] | 1361 | break; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1362 | case DTV_ISDBT_LAYERA_FEC: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1363 | tvp->u.data = c->layer[0].fec; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1364 | break; |
| 1365 | case DTV_ISDBT_LAYERA_MODULATION: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1366 | tvp->u.data = c->layer[0].modulation; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1367 | break; |
| 1368 | case DTV_ISDBT_LAYERA_SEGMENT_COUNT: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1369 | tvp->u.data = c->layer[0].segment_count; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1370 | break; |
| 1371 | case DTV_ISDBT_LAYERA_TIME_INTERLEAVING: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1372 | tvp->u.data = c->layer[0].interleaving; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1373 | break; |
| 1374 | case DTV_ISDBT_LAYERB_FEC: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1375 | tvp->u.data = c->layer[1].fec; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1376 | break; |
| 1377 | case DTV_ISDBT_LAYERB_MODULATION: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1378 | tvp->u.data = c->layer[1].modulation; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1379 | break; |
| 1380 | case DTV_ISDBT_LAYERB_SEGMENT_COUNT: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1381 | tvp->u.data = c->layer[1].segment_count; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1382 | break; |
| 1383 | case DTV_ISDBT_LAYERB_TIME_INTERLEAVING: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1384 | tvp->u.data = c->layer[1].interleaving; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1385 | break; |
| 1386 | case DTV_ISDBT_LAYERC_FEC: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1387 | tvp->u.data = c->layer[2].fec; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1388 | break; |
| 1389 | case DTV_ISDBT_LAYERC_MODULATION: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1390 | tvp->u.data = c->layer[2].modulation; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1391 | break; |
| 1392 | case DTV_ISDBT_LAYERC_SEGMENT_COUNT: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1393 | tvp->u.data = c->layer[2].segment_count; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1394 | break; |
| 1395 | case DTV_ISDBT_LAYERC_TIME_INTERLEAVING: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1396 | tvp->u.data = c->layer[2].interleaving; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1397 | break; |
Evgeny Plehov | 287cefd | 2012-09-13 10:13:30 -0300 | [diff] [blame] | 1398 | |
| 1399 | /* Multistream support */ |
| 1400 | case DTV_STREAM_ID: |
| 1401 | case DTV_DVBT2_PLP_ID_LEGACY: |
| 1402 | tvp->u.data = c->stream_id; |
Andreas Oberritter | 94d56ff | 2011-05-12 18:11:06 -0300 | [diff] [blame] | 1403 | break; |
Michael Krufky | ca68948 | 2012-01-29 15:44:58 -0300 | [diff] [blame] | 1404 | |
| 1405 | /* ATSC-MH */ |
| 1406 | case DTV_ATSCMH_FIC_VER: |
| 1407 | tvp->u.data = fe->dtv_property_cache.atscmh_fic_ver; |
| 1408 | break; |
| 1409 | case DTV_ATSCMH_PARADE_ID: |
| 1410 | tvp->u.data = fe->dtv_property_cache.atscmh_parade_id; |
| 1411 | break; |
| 1412 | case DTV_ATSCMH_NOG: |
| 1413 | tvp->u.data = fe->dtv_property_cache.atscmh_nog; |
| 1414 | break; |
| 1415 | case DTV_ATSCMH_TNOG: |
| 1416 | tvp->u.data = fe->dtv_property_cache.atscmh_tnog; |
| 1417 | break; |
| 1418 | case DTV_ATSCMH_SGN: |
| 1419 | tvp->u.data = fe->dtv_property_cache.atscmh_sgn; |
| 1420 | break; |
| 1421 | case DTV_ATSCMH_PRC: |
| 1422 | tvp->u.data = fe->dtv_property_cache.atscmh_prc; |
| 1423 | break; |
| 1424 | case DTV_ATSCMH_RS_FRAME_MODE: |
| 1425 | tvp->u.data = fe->dtv_property_cache.atscmh_rs_frame_mode; |
| 1426 | break; |
| 1427 | case DTV_ATSCMH_RS_FRAME_ENSEMBLE: |
| 1428 | tvp->u.data = fe->dtv_property_cache.atscmh_rs_frame_ensemble; |
| 1429 | break; |
| 1430 | case DTV_ATSCMH_RS_CODE_MODE_PRI: |
| 1431 | tvp->u.data = fe->dtv_property_cache.atscmh_rs_code_mode_pri; |
| 1432 | break; |
| 1433 | case DTV_ATSCMH_RS_CODE_MODE_SEC: |
| 1434 | tvp->u.data = fe->dtv_property_cache.atscmh_rs_code_mode_sec; |
| 1435 | break; |
| 1436 | case DTV_ATSCMH_SCCC_BLOCK_MODE: |
| 1437 | tvp->u.data = fe->dtv_property_cache.atscmh_sccc_block_mode; |
| 1438 | break; |
| 1439 | case DTV_ATSCMH_SCCC_CODE_MODE_A: |
| 1440 | tvp->u.data = fe->dtv_property_cache.atscmh_sccc_code_mode_a; |
| 1441 | break; |
| 1442 | case DTV_ATSCMH_SCCC_CODE_MODE_B: |
| 1443 | tvp->u.data = fe->dtv_property_cache.atscmh_sccc_code_mode_b; |
| 1444 | break; |
| 1445 | case DTV_ATSCMH_SCCC_CODE_MODE_C: |
| 1446 | tvp->u.data = fe->dtv_property_cache.atscmh_sccc_code_mode_c; |
| 1447 | break; |
| 1448 | case DTV_ATSCMH_SCCC_CODE_MODE_D: |
| 1449 | tvp->u.data = fe->dtv_property_cache.atscmh_sccc_code_mode_d; |
| 1450 | break; |
Michael Krufky | ca68948 | 2012-01-29 15:44:58 -0300 | [diff] [blame] | 1451 | |
Antti Palosaari | 33eebec | 2012-10-03 04:28:56 -0300 | [diff] [blame] | 1452 | case DTV_LNA: |
| 1453 | tvp->u.data = c->lna; |
| 1454 | break; |
| 1455 | |
Mauro Carvalho Chehab | 7cd4ece | 2013-01-07 15:41:35 -0300 | [diff] [blame] | 1456 | /* Fill quality measures */ |
| 1457 | case DTV_STAT_SIGNAL_STRENGTH: |
| 1458 | tvp->u.st = c->strength; |
| 1459 | break; |
| 1460 | case DTV_STAT_CNR: |
| 1461 | tvp->u.st = c->cnr; |
| 1462 | break; |
| 1463 | case DTV_STAT_PRE_ERROR_BIT_COUNT: |
| 1464 | tvp->u.st = c->pre_bit_error; |
| 1465 | break; |
| 1466 | case DTV_STAT_PRE_TOTAL_BIT_COUNT: |
| 1467 | tvp->u.st = c->pre_bit_count; |
| 1468 | break; |
| 1469 | case DTV_STAT_POST_ERROR_BIT_COUNT: |
| 1470 | tvp->u.st = c->post_bit_error; |
| 1471 | break; |
| 1472 | case DTV_STAT_POST_TOTAL_BIT_COUNT: |
| 1473 | tvp->u.st = c->post_bit_count; |
| 1474 | break; |
| 1475 | case DTV_STAT_ERROR_BLOCK_COUNT: |
| 1476 | tvp->u.st = c->block_error; |
| 1477 | break; |
| 1478 | case DTV_STAT_TOTAL_BLOCK_COUNT: |
| 1479 | tvp->u.st = c->block_count; |
| 1480 | break; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1481 | default: |
Mauro Carvalho Chehab | 94a93e5 | 2013-01-23 17:06:02 -0300 | [diff] [blame] | 1482 | dev_dbg(fe->dvb->device, |
| 1483 | "%s: FE property %d doesn't exist\n", |
| 1484 | __func__, tvp->cmd); |
Andreas Oberritter | aff8ab5 | 2011-05-09 00:03:34 +0100 | [diff] [blame] | 1485 | return -EINVAL; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1486 | } |
| 1487 | |
Andreas Oberritter | e23d9ae | 2011-05-08 20:03:36 -0300 | [diff] [blame] | 1488 | /* Allow the frontend to override outgoing properties */ |
| 1489 | if (fe->ops.get_property) { |
| 1490 | r = fe->ops.get_property(fe, tvp); |
| 1491 | if (r < 0) |
| 1492 | return r; |
| 1493 | } |
| 1494 | |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 1495 | dtv_property_dump(fe, tvp); |
Mauro Carvalho Chehab | 639544d | 2009-12-31 17:49:32 -0300 | [diff] [blame] | 1496 | |
Andreas Oberritter | aff8ab5 | 2011-05-09 00:03:34 +0100 | [diff] [blame] | 1497 | return 0; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1498 | } |
| 1499 | |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 1500 | static int dtv_set_frontend(struct dvb_frontend *fe); |
| 1501 | |
Mauro Carvalho Chehab | 04be0f7 | 2012-01-01 16:11:14 -0300 | [diff] [blame] | 1502 | static bool is_dvbv3_delsys(u32 delsys) |
| 1503 | { |
| 1504 | bool status; |
| 1505 | |
| 1506 | status = (delsys == SYS_DVBT) || (delsys == SYS_DVBC_ANNEX_A) || |
| 1507 | (delsys == SYS_DVBS) || (delsys == SYS_ATSC); |
| 1508 | |
| 1509 | return status; |
| 1510 | } |
| 1511 | |
Mauro Carvalho Chehab | 52dee39 | 2013-03-18 15:25:37 -0300 | [diff] [blame] | 1512 | /** |
| 1513 | * emulate_delivery_system - emulate a DVBv5 delivery system with a DVBv3 type |
| 1514 | * @fe: struct frontend; |
| 1515 | * @delsys: DVBv5 type that will be used for emulation |
| 1516 | * |
| 1517 | * Provides emulation for delivery systems that are compatible with the old |
| 1518 | * DVBv3 call. Among its usages, it provices support for ISDB-T, and allows |
| 1519 | * using a DVB-S2 only frontend just like it were a DVB-S, if the frontent |
| 1520 | * parameters are compatible with DVB-S spec. |
| 1521 | */ |
| 1522 | static int emulate_delivery_system(struct dvb_frontend *fe, u32 delsys) |
Mauro Carvalho Chehab | 04be0f7 | 2012-01-01 16:11:14 -0300 | [diff] [blame] | 1523 | { |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 1524 | int i; |
Mauro Carvalho Chehab | 04be0f7 | 2012-01-01 16:11:14 -0300 | [diff] [blame] | 1525 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
Mauro Carvalho Chehab | 04be0f7 | 2012-01-01 16:11:14 -0300 | [diff] [blame] | 1526 | |
Mauro Carvalho Chehab | 3626479 | 2012-04-17 18:32:19 -0300 | [diff] [blame] | 1527 | c->delivery_system = delsys; |
| 1528 | |
Mauro Carvalho Chehab | 04be0f7 | 2012-01-01 16:11:14 -0300 | [diff] [blame] | 1529 | /* |
Mauro Carvalho Chehab | 52dee39 | 2013-03-18 15:25:37 -0300 | [diff] [blame] | 1530 | * 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] | 1531 | */ |
Mauro Carvalho Chehab | 52dee39 | 2013-03-18 15:25:37 -0300 | [diff] [blame] | 1532 | if (c->delivery_system == SYS_ISDBT) { |
| 1533 | dev_dbg(fe->dvb->device, |
| 1534 | "%s: Using defaults for SYS_ISDBT\n", |
| 1535 | __func__); |
Mauro Carvalho Chehab | 04be0f7 | 2012-01-01 16:11:14 -0300 | [diff] [blame] | 1536 | |
Mauro Carvalho Chehab | 52dee39 | 2013-03-18 15:25:37 -0300 | [diff] [blame] | 1537 | if (!c->bandwidth_hz) |
| 1538 | c->bandwidth_hz = 6000000; |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 1539 | |
Mauro Carvalho Chehab | 52dee39 | 2013-03-18 15:25:37 -0300 | [diff] [blame] | 1540 | c->isdbt_partial_reception = 0; |
| 1541 | c->isdbt_sb_mode = 0; |
| 1542 | c->isdbt_sb_subchannel = 0; |
| 1543 | c->isdbt_sb_segment_idx = 0; |
| 1544 | c->isdbt_sb_segment_count = 0; |
| 1545 | c->isdbt_layer_enabled = 7; |
| 1546 | for (i = 0; i < 3; i++) { |
| 1547 | c->layer[i].fec = FEC_AUTO; |
| 1548 | c->layer[i].modulation = QAM_AUTO; |
| 1549 | c->layer[i].interleaving = 0; |
| 1550 | c->layer[i].segment_count = 0; |
Mauro Carvalho Chehab | 04be0f7 | 2012-01-01 16:11:14 -0300 | [diff] [blame] | 1551 | } |
| 1552 | } |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 1553 | 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] | 1554 | __func__, c->delivery_system); |
Mauro Carvalho Chehab | 9474c5e | 2012-01-05 12:28:20 -0200 | [diff] [blame] | 1555 | |
Mauro Carvalho Chehab | 04be0f7 | 2012-01-01 16:11:14 -0300 | [diff] [blame] | 1556 | return 0; |
| 1557 | } |
| 1558 | |
Mauro Carvalho Chehab | 52dee39 | 2013-03-18 15:25:37 -0300 | [diff] [blame] | 1559 | /** |
| 1560 | * dvbv5_set_delivery_system - Sets the delivery system for a DVBv5 API call |
| 1561 | * @fe: frontend struct |
| 1562 | * @desired_system: delivery system requested by the user |
| 1563 | * |
| 1564 | * A DVBv5 call know what's the desired system it wants. So, set it. |
| 1565 | * |
| 1566 | * There are, however, a few known issues with early DVBv5 applications that |
| 1567 | * are also handled by this logic: |
| 1568 | * |
| 1569 | * 1) Some early apps use SYS_UNDEFINED as the desired delivery system. |
| 1570 | * This is an API violation, but, as we don't want to break userspace, |
| 1571 | * convert it to the first supported delivery system. |
| 1572 | * 2) Some apps might be using a DVBv5 call in a wrong way, passing, for |
| 1573 | * example, SYS_DVBT instead of SYS_ISDBT. This is because early usage of |
| 1574 | * ISDB-T provided backward compat with DVB-T. |
| 1575 | */ |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 1576 | static int dvbv5_set_delivery_system(struct dvb_frontend *fe, |
| 1577 | u32 desired_system) |
| 1578 | { |
| 1579 | int ncaps; |
| 1580 | u32 delsys = SYS_UNDEFINED; |
| 1581 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
| 1582 | enum dvbv3_emulation_type type; |
| 1583 | |
| 1584 | /* |
| 1585 | * It was reported that some old DVBv5 applications were |
| 1586 | * filling delivery_system with SYS_UNDEFINED. If this happens, |
| 1587 | * assume that the application wants to use the first supported |
| 1588 | * delivery system. |
| 1589 | */ |
Mauro Carvalho Chehab | 52dee39 | 2013-03-18 15:25:37 -0300 | [diff] [blame] | 1590 | if (desired_system == SYS_UNDEFINED) |
| 1591 | desired_system = fe->ops.delsys[0]; |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 1592 | |
| 1593 | /* |
Mauro Carvalho Chehab | 52dee39 | 2013-03-18 15:25:37 -0300 | [diff] [blame] | 1594 | * This is a DVBv5 call. So, it likely knows the supported |
| 1595 | * delivery systems. So, check if the desired delivery system is |
| 1596 | * supported |
| 1597 | */ |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 1598 | ncaps = 0; |
| 1599 | while (fe->ops.delsys[ncaps] && ncaps < MAX_DELSYS) { |
| 1600 | if (fe->ops.delsys[ncaps] == desired_system) { |
| 1601 | c->delivery_system = desired_system; |
| 1602 | dev_dbg(fe->dvb->device, |
| 1603 | "%s: Changing delivery system to %d\n", |
| 1604 | __func__, desired_system); |
| 1605 | return 0; |
| 1606 | } |
| 1607 | ncaps++; |
| 1608 | } |
| 1609 | |
| 1610 | /* |
Mauro Carvalho Chehab | 52dee39 | 2013-03-18 15:25:37 -0300 | [diff] [blame] | 1611 | * The requested delivery system isn't supported. Maybe userspace |
| 1612 | * is requesting a DVBv3 compatible delivery system. |
| 1613 | * |
| 1614 | * The emulation only works if the desired system is one of the |
| 1615 | * delivery systems supported by DVBv3 API |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 1616 | */ |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 1617 | if (!is_dvbv3_delsys(desired_system)) { |
| 1618 | dev_dbg(fe->dvb->device, |
Mauro Carvalho Chehab | 52dee39 | 2013-03-18 15:25:37 -0300 | [diff] [blame] | 1619 | "%s: Delivery system %d not supported.\n", |
| 1620 | __func__, desired_system); |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 1621 | return -EINVAL; |
| 1622 | } |
| 1623 | |
Mauro Carvalho Chehab | 52dee39 | 2013-03-18 15:25:37 -0300 | [diff] [blame] | 1624 | type = dvbv3_type(desired_system); |
| 1625 | |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 1626 | /* |
| 1627 | * Get the last non-DVBv3 delivery system that has the same type |
| 1628 | * of the desired system |
| 1629 | */ |
| 1630 | ncaps = 0; |
| 1631 | while (fe->ops.delsys[ncaps] && ncaps < MAX_DELSYS) { |
Mauro Carvalho Chehab | 52dee39 | 2013-03-18 15:25:37 -0300 | [diff] [blame] | 1632 | if (dvbv3_type(fe->ops.delsys[ncaps]) == type) |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 1633 | delsys = fe->ops.delsys[ncaps]; |
| 1634 | ncaps++; |
| 1635 | } |
Mauro Carvalho Chehab | 52dee39 | 2013-03-18 15:25:37 -0300 | [diff] [blame] | 1636 | |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 1637 | /* There's nothing compatible with the desired delivery system */ |
| 1638 | if (delsys == SYS_UNDEFINED) { |
| 1639 | dev_dbg(fe->dvb->device, |
Mauro Carvalho Chehab | 52dee39 | 2013-03-18 15:25:37 -0300 | [diff] [blame] | 1640 | "%s: Delivery system %d not supported on emulation mode.\n", |
| 1641 | __func__, desired_system); |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 1642 | return -EINVAL; |
| 1643 | } |
| 1644 | |
Mauro Carvalho Chehab | 52dee39 | 2013-03-18 15:25:37 -0300 | [diff] [blame] | 1645 | dev_dbg(fe->dvb->device, |
| 1646 | "%s: Using delivery system %d emulated as if it were %d\n", |
| 1647 | __func__, delsys, desired_system); |
| 1648 | |
| 1649 | return emulate_delivery_system(fe, desired_system); |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 1650 | } |
| 1651 | |
Mauro Carvalho Chehab | 52dee39 | 2013-03-18 15:25:37 -0300 | [diff] [blame] | 1652 | /** |
| 1653 | * dvbv3_set_delivery_system - Sets the delivery system for a DVBv3 API call |
| 1654 | * @fe: frontend struct |
| 1655 | * |
| 1656 | * A DVBv3 call doesn't know what's the desired system it wants. It also |
| 1657 | * doesn't allow to switch between different types. Due to that, userspace |
| 1658 | * should use DVBv5 instead. |
| 1659 | * However, in order to avoid breaking userspace API, limited backward |
| 1660 | * compatibility support is provided. |
| 1661 | * |
| 1662 | * There are some delivery systems that are incompatible with DVBv3 calls. |
| 1663 | * |
| 1664 | * This routine should work fine for frontends that support just one delivery |
| 1665 | * system. |
| 1666 | * |
| 1667 | * For frontends that support multiple frontends: |
| 1668 | * 1) It defaults to use the first supported delivery system. There's an |
| 1669 | * userspace application that allows changing it at runtime; |
| 1670 | * |
| 1671 | * 2) If the current delivery system is not compatible with DVBv3, it gets |
| 1672 | * the first one that it is compatible. |
| 1673 | * |
| 1674 | * NOTE: in order for this to work with applications like Kaffeine that |
| 1675 | * uses a DVBv5 call for DVB-S2 and a DVBv3 call to go back to |
| 1676 | * DVB-S, drivers that support both DVB-S and DVB-S2 should have the |
| 1677 | * SYS_DVBS entry before the SYS_DVBS2, otherwise it won't switch back |
| 1678 | * to DVB-S. |
| 1679 | */ |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 1680 | static int dvbv3_set_delivery_system(struct dvb_frontend *fe) |
| 1681 | { |
| 1682 | int ncaps; |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 1683 | u32 delsys = SYS_UNDEFINED; |
| 1684 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 1685 | |
| 1686 | /* If not set yet, defaults to the first supported delivery system */ |
| 1687 | if (c->delivery_system == SYS_UNDEFINED) |
| 1688 | c->delivery_system = fe->ops.delsys[0]; |
| 1689 | |
| 1690 | /* |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 1691 | * Trivial case: just use the current one, if it already a DVBv3 |
| 1692 | * delivery system |
| 1693 | */ |
| 1694 | if (is_dvbv3_delsys(c->delivery_system)) { |
| 1695 | dev_dbg(fe->dvb->device, |
| 1696 | "%s: Using delivery system to %d\n", |
| 1697 | __func__, c->delivery_system); |
| 1698 | return 0; |
| 1699 | } |
| 1700 | |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 1701 | /* |
Mauro Carvalho Chehab | 52dee39 | 2013-03-18 15:25:37 -0300 | [diff] [blame] | 1702 | * Seek for the first delivery system that it is compatible with a |
| 1703 | * DVBv3 standard |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 1704 | */ |
| 1705 | ncaps = 0; |
| 1706 | while (fe->ops.delsys[ncaps] && ncaps < MAX_DELSYS) { |
Mauro Carvalho Chehab | 52dee39 | 2013-03-18 15:25:37 -0300 | [diff] [blame] | 1707 | if (dvbv3_type(fe->ops.delsys[ncaps]) != DVBV3_UNKNOWN) { |
| 1708 | delsys = fe->ops.delsys[ncaps]; |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 1709 | break; |
| 1710 | } |
| 1711 | ncaps++; |
| 1712 | } |
| 1713 | if (delsys == SYS_UNDEFINED) { |
Mauro Carvalho Chehab | 52dee39 | 2013-03-18 15:25:37 -0300 | [diff] [blame] | 1714 | dev_dbg(fe->dvb->device, |
| 1715 | "%s: Couldn't find a delivery system that works with FE_SET_FRONTEND\n", |
| 1716 | __func__); |
| 1717 | return -EINVAL; |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 1718 | } |
Mauro Carvalho Chehab | 52dee39 | 2013-03-18 15:25:37 -0300 | [diff] [blame] | 1719 | return emulate_delivery_system(fe, delsys); |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 1720 | } |
| 1721 | |
Mauro Carvalho Chehab | 072ce0c | 2009-01-05 01:19:06 -0300 | [diff] [blame] | 1722 | static int dtv_property_process_set(struct dvb_frontend *fe, |
| 1723 | struct dtv_property *tvp, |
Mauro Carvalho Chehab | 072ce0c | 2009-01-05 01:19:06 -0300 | [diff] [blame] | 1724 | struct file *file) |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1725 | { |
| 1726 | int r = 0; |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1727 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1728 | |
Steven Toth | bfbf2da | 2008-09-12 01:37:37 -0300 | [diff] [blame] | 1729 | /* Allow the frontend to validate incoming properties */ |
Andreas Oberritter | aff8ab5 | 2011-05-09 00:03:34 +0100 | [diff] [blame] | 1730 | if (fe->ops.set_property) { |
Steven Toth | bfbf2da | 2008-09-12 01:37:37 -0300 | [diff] [blame] | 1731 | r = fe->ops.set_property(fe, tvp); |
Andreas Oberritter | aff8ab5 | 2011-05-09 00:03:34 +0100 | [diff] [blame] | 1732 | if (r < 0) |
| 1733 | return r; |
| 1734 | } |
Steven Toth | bfbf2da | 2008-09-12 01:37:37 -0300 | [diff] [blame] | 1735 | |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1736 | switch(tvp->cmd) { |
Steven Toth | e7fee0f3 | 2008-09-11 10:23:01 -0300 | [diff] [blame] | 1737 | case DTV_CLEAR: |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 1738 | /* |
| 1739 | * Reset a cache of data specific to the frontend here. This does |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1740 | * not effect hardware. |
| 1741 | */ |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1742 | dvb_frontend_clear_cache(fe); |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1743 | break; |
Steven Toth | e7fee0f3 | 2008-09-11 10:23:01 -0300 | [diff] [blame] | 1744 | case DTV_TUNE: |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1745 | /* interpret the cache of data, build either a traditional frontend |
Steven Toth | d5748f1 | 2008-09-12 00:27:13 -0300 | [diff] [blame] | 1746 | * tunerequest so we can pass validation in the FE_SET_FRONTEND |
| 1747 | * ioctl. |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1748 | */ |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1749 | c->state = tvp->cmd; |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 1750 | dev_dbg(fe->dvb->device, "%s: Finalised property cache\n", |
| 1751 | __func__); |
Steven Toth | d5748f1 | 2008-09-12 00:27:13 -0300 | [diff] [blame] | 1752 | |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 1753 | r = dtv_set_frontend(fe); |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1754 | break; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1755 | case DTV_FREQUENCY: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1756 | c->frequency = tvp->u.data; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1757 | break; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1758 | case DTV_MODULATION: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1759 | c->modulation = tvp->u.data; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1760 | break; |
Steven Toth | 75b7f94 | 2008-09-13 16:56:34 -0300 | [diff] [blame] | 1761 | case DTV_BANDWIDTH_HZ: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1762 | c->bandwidth_hz = tvp->u.data; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1763 | break; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1764 | case DTV_INVERSION: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1765 | c->inversion = tvp->u.data; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1766 | break; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1767 | case DTV_SYMBOL_RATE: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1768 | c->symbol_rate = tvp->u.data; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1769 | break; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1770 | case DTV_INNER_FEC: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1771 | c->fec_inner = tvp->u.data; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1772 | break; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1773 | case DTV_PILOT: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1774 | c->pilot = tvp->u.data; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1775 | break; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1776 | case DTV_ROLLOFF: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1777 | c->rolloff = tvp->u.data; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1778 | break; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1779 | case DTV_DELIVERY_SYSTEM: |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 1780 | r = dvbv5_set_delivery_system(fe, tvp->u.data); |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1781 | break; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1782 | case DTV_VOLTAGE: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1783 | c->voltage = tvp->u.data; |
Arnd Bergmann | 16ef8de | 2010-04-27 00:24:00 +0200 | [diff] [blame] | 1784 | r = dvb_frontend_ioctl_legacy(file, FE_SET_VOLTAGE, |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1785 | (void *)c->voltage); |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1786 | break; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1787 | case DTV_TONE: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1788 | c->sectone = tvp->u.data; |
Arnd Bergmann | 16ef8de | 2010-04-27 00:24:00 +0200 | [diff] [blame] | 1789 | r = dvb_frontend_ioctl_legacy(file, FE_SET_TONE, |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1790 | (void *)c->sectone); |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1791 | break; |
Steven Toth | a4de91b | 2008-10-06 21:55:46 -0300 | [diff] [blame] | 1792 | case DTV_CODE_RATE_HP: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1793 | c->code_rate_HP = tvp->u.data; |
Steven Toth | a4de91b | 2008-10-06 21:55:46 -0300 | [diff] [blame] | 1794 | break; |
| 1795 | case DTV_CODE_RATE_LP: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1796 | c->code_rate_LP = tvp->u.data; |
Steven Toth | a4de91b | 2008-10-06 21:55:46 -0300 | [diff] [blame] | 1797 | break; |
Steven Toth | b87625f | 2008-10-06 21:56:59 -0300 | [diff] [blame] | 1798 | case DTV_GUARD_INTERVAL: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1799 | c->guard_interval = tvp->u.data; |
Steven Toth | b87625f | 2008-10-06 21:56:59 -0300 | [diff] [blame] | 1800 | break; |
| 1801 | case DTV_TRANSMISSION_MODE: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1802 | c->transmission_mode = tvp->u.data; |
Steven Toth | b87625f | 2008-10-06 21:56:59 -0300 | [diff] [blame] | 1803 | break; |
Steven Toth | ef526f4 | 2008-10-06 22:01:47 -0300 | [diff] [blame] | 1804 | case DTV_HIERARCHY: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1805 | c->hierarchy = tvp->u.data; |
Steven Toth | ef526f4 | 2008-10-06 22:01:47 -0300 | [diff] [blame] | 1806 | break; |
Antti Palosaari | 224b664 | 2012-08-12 22:33:21 -0300 | [diff] [blame] | 1807 | case DTV_INTERLEAVING: |
| 1808 | c->interleaving = tvp->u.data; |
| 1809 | break; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1810 | |
| 1811 | /* ISDB-T Support here */ |
| 1812 | case DTV_ISDBT_PARTIAL_RECEPTION: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1813 | c->isdbt_partial_reception = tvp->u.data; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1814 | break; |
| 1815 | case DTV_ISDBT_SOUND_BROADCASTING: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1816 | c->isdbt_sb_mode = tvp->u.data; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1817 | break; |
| 1818 | case DTV_ISDBT_SB_SUBCHANNEL_ID: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1819 | c->isdbt_sb_subchannel = tvp->u.data; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1820 | break; |
| 1821 | case DTV_ISDBT_SB_SEGMENT_IDX: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1822 | c->isdbt_sb_segment_idx = tvp->u.data; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1823 | break; |
| 1824 | case DTV_ISDBT_SB_SEGMENT_COUNT: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1825 | c->isdbt_sb_segment_count = tvp->u.data; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1826 | break; |
Patrick Boettcher | e7b7949 | 2009-08-14 05:24:19 -0300 | [diff] [blame] | 1827 | case DTV_ISDBT_LAYER_ENABLED: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1828 | c->isdbt_layer_enabled = tvp->u.data; |
Patrick Boettcher | e7b7949 | 2009-08-14 05:24:19 -0300 | [diff] [blame] | 1829 | break; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1830 | case DTV_ISDBT_LAYERA_FEC: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1831 | c->layer[0].fec = tvp->u.data; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1832 | break; |
| 1833 | case DTV_ISDBT_LAYERA_MODULATION: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1834 | c->layer[0].modulation = tvp->u.data; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1835 | break; |
| 1836 | case DTV_ISDBT_LAYERA_SEGMENT_COUNT: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1837 | c->layer[0].segment_count = tvp->u.data; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1838 | break; |
| 1839 | case DTV_ISDBT_LAYERA_TIME_INTERLEAVING: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1840 | c->layer[0].interleaving = tvp->u.data; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1841 | break; |
| 1842 | case DTV_ISDBT_LAYERB_FEC: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1843 | c->layer[1].fec = tvp->u.data; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1844 | break; |
| 1845 | case DTV_ISDBT_LAYERB_MODULATION: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1846 | c->layer[1].modulation = tvp->u.data; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1847 | break; |
| 1848 | case DTV_ISDBT_LAYERB_SEGMENT_COUNT: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1849 | c->layer[1].segment_count = tvp->u.data; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1850 | break; |
| 1851 | case DTV_ISDBT_LAYERB_TIME_INTERLEAVING: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1852 | c->layer[1].interleaving = tvp->u.data; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1853 | break; |
| 1854 | case DTV_ISDBT_LAYERC_FEC: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1855 | c->layer[2].fec = tvp->u.data; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1856 | break; |
| 1857 | case DTV_ISDBT_LAYERC_MODULATION: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1858 | c->layer[2].modulation = tvp->u.data; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1859 | break; |
| 1860 | case DTV_ISDBT_LAYERC_SEGMENT_COUNT: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1861 | c->layer[2].segment_count = tvp->u.data; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1862 | break; |
| 1863 | case DTV_ISDBT_LAYERC_TIME_INTERLEAVING: |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1864 | c->layer[2].interleaving = tvp->u.data; |
Patrick Boettcher | b6e760f | 2009-08-03 14:39:15 -0300 | [diff] [blame] | 1865 | break; |
Evgeny Plehov | 287cefd | 2012-09-13 10:13:30 -0300 | [diff] [blame] | 1866 | |
| 1867 | /* Multistream support */ |
| 1868 | case DTV_STREAM_ID: |
| 1869 | case DTV_DVBT2_PLP_ID_LEGACY: |
| 1870 | c->stream_id = tvp->u.data; |
Andreas Oberritter | 94d56ff | 2011-05-12 18:11:06 -0300 | [diff] [blame] | 1871 | break; |
Michael Krufky | ca68948 | 2012-01-29 15:44:58 -0300 | [diff] [blame] | 1872 | |
| 1873 | /* ATSC-MH */ |
| 1874 | case DTV_ATSCMH_PARADE_ID: |
| 1875 | fe->dtv_property_cache.atscmh_parade_id = tvp->u.data; |
| 1876 | break; |
| 1877 | case DTV_ATSCMH_RS_FRAME_ENSEMBLE: |
| 1878 | fe->dtv_property_cache.atscmh_rs_frame_ensemble = tvp->u.data; |
| 1879 | break; |
| 1880 | |
Antti Palosaari | 33eebec | 2012-10-03 04:28:56 -0300 | [diff] [blame] | 1881 | case DTV_LNA: |
| 1882 | c->lna = tvp->u.data; |
| 1883 | if (fe->ops.set_lna) |
| 1884 | r = fe->ops.set_lna(fe); |
| 1885 | break; |
| 1886 | |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1887 | default: |
Andreas Oberritter | aff8ab5 | 2011-05-09 00:03:34 +0100 | [diff] [blame] | 1888 | return -EINVAL; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1889 | } |
| 1890 | |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1891 | return r; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1892 | } |
| 1893 | |
Arnd Bergmann | 16ef8de | 2010-04-27 00:24:00 +0200 | [diff] [blame] | 1894 | static int dvb_frontend_ioctl(struct file *file, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1895 | unsigned int cmd, void *parg) |
| 1896 | { |
| 1897 | struct dvb_device *dvbdev = file->private_data; |
| 1898 | struct dvb_frontend *fe = dvbdev->priv; |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1899 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 1900 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Mauro Carvalho Chehab | ac89758 | 2013-02-15 13:39:31 -0200 | [diff] [blame] | 1901 | int err = -EOPNOTSUPP; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1902 | |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 1903 | dev_dbg(fe->dvb->device, "%s: (%d)\n", __func__, _IOC_NR(cmd)); |
Juergen Lock | 6ae2322 | 2012-12-23 17:23:06 -0300 | [diff] [blame] | 1904 | if (down_interruptible(&fepriv->sem)) |
| 1905 | return -ERESTARTSYS; |
| 1906 | |
| 1907 | if (fepriv->exit != DVB_FE_NO_EXIT) { |
| 1908 | up(&fepriv->sem); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1909 | return -ENODEV; |
Juergen Lock | 6ae2322 | 2012-12-23 17:23:06 -0300 | [diff] [blame] | 1910 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1911 | |
| 1912 | if ((file->f_flags & O_ACCMODE) == O_RDONLY && |
| 1913 | (_IOC_DIR(cmd) != _IOC_READ || cmd == FE_GET_EVENT || |
Juergen Lock | 6ae2322 | 2012-12-23 17:23:06 -0300 | [diff] [blame] | 1914 | cmd == FE_DISEQC_RECV_SLAVE_REPLY)) { |
| 1915 | up(&fepriv->sem); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1916 | return -EPERM; |
Juergen Lock | 6ae2322 | 2012-12-23 17:23:06 -0300 | [diff] [blame] | 1917 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1918 | |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1919 | if ((cmd == FE_SET_PROPERTY) || (cmd == FE_GET_PROPERTY)) |
Arnd Bergmann | 16ef8de | 2010-04-27 00:24:00 +0200 | [diff] [blame] | 1920 | err = dvb_frontend_ioctl_properties(file, cmd, parg); |
Steven Toth | 4dd88be | 2008-09-13 15:09:07 -0300 | [diff] [blame] | 1921 | else { |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1922 | c->state = DTV_UNDEFINED; |
Arnd Bergmann | 16ef8de | 2010-04-27 00:24:00 +0200 | [diff] [blame] | 1923 | err = dvb_frontend_ioctl_legacy(file, cmd, parg); |
Steven Toth | 4dd88be | 2008-09-13 15:09:07 -0300 | [diff] [blame] | 1924 | } |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1925 | |
| 1926 | up(&fepriv->sem); |
| 1927 | return err; |
| 1928 | } |
| 1929 | |
Arnd Bergmann | 16ef8de | 2010-04-27 00:24:00 +0200 | [diff] [blame] | 1930 | static int dvb_frontend_ioctl_properties(struct file *file, |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1931 | unsigned int cmd, void *parg) |
| 1932 | { |
| 1933 | struct dvb_device *dvbdev = file->private_data; |
| 1934 | struct dvb_frontend *fe = dvbdev->priv; |
Mauro Carvalho Chehab | 51dcb19 | 2012-01-17 16:20:37 -0200 | [diff] [blame] | 1935 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1936 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
Igor M. Liplianin | e6f9ec8 | 2008-09-12 14:49:06 -0300 | [diff] [blame] | 1937 | int err = 0; |
Steven Toth | e7fee0f3 | 2008-09-11 10:23:01 -0300 | [diff] [blame] | 1938 | |
| 1939 | struct dtv_properties *tvps = NULL; |
| 1940 | struct dtv_property *tvp = NULL; |
| 1941 | int i; |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1942 | |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 1943 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 1944 | |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1945 | if(cmd == FE_SET_PROPERTY) { |
Steven Toth | e7fee0f3 | 2008-09-11 10:23:01 -0300 | [diff] [blame] | 1946 | tvps = (struct dtv_properties __user *)parg; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1947 | |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 1948 | dev_dbg(fe->dvb->device, "%s: properties.num = %d\n", __func__, tvps->num); |
| 1949 | 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] | 1950 | |
| 1951 | /* Put an arbitrary limit on the number of messages that can |
| 1952 | * be sent at once */ |
Steven Toth | 6068f50 | 2008-10-06 22:46:08 -0300 | [diff] [blame] | 1953 | if ((tvps->num == 0) || (tvps->num > DTV_IOCTL_MAX_MSGS)) |
Steven Toth | e7fee0f3 | 2008-09-11 10:23:01 -0300 | [diff] [blame] | 1954 | return -EINVAL; |
| 1955 | |
Thiago Farina | 6e3924a | 2010-01-16 10:25:38 -0300 | [diff] [blame] | 1956 | tvp = kmalloc(tvps->num * sizeof(struct dtv_property), GFP_KERNEL); |
Steven Toth | e7fee0f3 | 2008-09-11 10:23:01 -0300 | [diff] [blame] | 1957 | if (!tvp) { |
| 1958 | err = -ENOMEM; |
| 1959 | goto out; |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 1960 | } |
| 1961 | |
Steven Toth | e7fee0f3 | 2008-09-11 10:23:01 -0300 | [diff] [blame] | 1962 | if (copy_from_user(tvp, tvps->props, tvps->num * sizeof(struct dtv_property))) { |
| 1963 | err = -EFAULT; |
| 1964 | goto out; |
| 1965 | } |
| 1966 | |
Steven Toth | d48cb40 | 2008-09-26 00:16:25 -0300 | [diff] [blame] | 1967 | for (i = 0; i < tvps->num; i++) { |
Andreas Oberritter | aff8ab5 | 2011-05-09 00:03:34 +0100 | [diff] [blame] | 1968 | err = dtv_property_process_set(fe, tvp + i, file); |
| 1969 | if (err < 0) |
| 1970 | goto out; |
| 1971 | (tvp + i)->result = err; |
Steven Toth | d48cb40 | 2008-09-26 00:16:25 -0300 | [diff] [blame] | 1972 | } |
Steven Toth | e7fee0f3 | 2008-09-11 10:23:01 -0300 | [diff] [blame] | 1973 | |
Andreas Oberritter | 5072771 | 2011-05-08 20:03:39 -0300 | [diff] [blame] | 1974 | if (c->state == DTV_TUNE) |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 1975 | 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] | 1976 | |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1977 | } else |
| 1978 | if(cmd == FE_GET_PROPERTY) { |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1979 | tvps = (struct dtv_properties __user *)parg; |
| 1980 | |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 1981 | dev_dbg(fe->dvb->device, "%s: properties.num = %d\n", __func__, tvps->num); |
| 1982 | 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] | 1983 | |
| 1984 | /* Put an arbitrary limit on the number of messages that can |
| 1985 | * be sent at once */ |
Steven Toth | 6068f50 | 2008-10-06 22:46:08 -0300 | [diff] [blame] | 1986 | if ((tvps->num == 0) || (tvps->num > DTV_IOCTL_MAX_MSGS)) |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1987 | return -EINVAL; |
| 1988 | |
Thiago Farina | 6e3924a | 2010-01-16 10:25:38 -0300 | [diff] [blame] | 1989 | tvp = kmalloc(tvps->num * sizeof(struct dtv_property), GFP_KERNEL); |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 1990 | if (!tvp) { |
| 1991 | err = -ENOMEM; |
| 1992 | goto out; |
| 1993 | } |
| 1994 | |
| 1995 | if (copy_from_user(tvp, tvps->props, tvps->num * sizeof(struct dtv_property))) { |
| 1996 | err = -EFAULT; |
| 1997 | goto out; |
| 1998 | } |
| 1999 | |
Mauro Carvalho Chehab | a689e36 | 2011-12-22 14:47:48 -0300 | [diff] [blame] | 2000 | /* |
| 2001 | * Fills the cache out struct with the cache contents, plus |
Mauro Carvalho Chehab | 51dcb19 | 2012-01-17 16:20:37 -0200 | [diff] [blame] | 2002 | * the data retrieved from get_frontend, if the frontend |
| 2003 | * is not idle. Otherwise, returns the cached content |
Mauro Carvalho Chehab | a689e36 | 2011-12-22 14:47:48 -0300 | [diff] [blame] | 2004 | */ |
Mauro Carvalho Chehab | 51dcb19 | 2012-01-17 16:20:37 -0200 | [diff] [blame] | 2005 | if (fepriv->state != FESTATE_IDLE) { |
| 2006 | err = dtv_get_frontend(fe, NULL); |
| 2007 | if (err < 0) |
| 2008 | goto out; |
| 2009 | } |
Steven Toth | d48cb40 | 2008-09-26 00:16:25 -0300 | [diff] [blame] | 2010 | for (i = 0; i < tvps->num; i++) { |
Mauro Carvalho Chehab | 7c61d80 | 2011-12-30 11:30:21 -0300 | [diff] [blame] | 2011 | err = dtv_property_process_get(fe, c, tvp + i, file); |
Andreas Oberritter | aff8ab5 | 2011-05-09 00:03:34 +0100 | [diff] [blame] | 2012 | if (err < 0) |
| 2013 | goto out; |
| 2014 | (tvp + i)->result = err; |
Steven Toth | d48cb40 | 2008-09-26 00:16:25 -0300 | [diff] [blame] | 2015 | } |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 2016 | |
| 2017 | if (copy_to_user(tvps->props, tvp, tvps->num * sizeof(struct dtv_property))) { |
| 2018 | err = -EFAULT; |
| 2019 | goto out; |
| 2020 | } |
| 2021 | |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 2022 | } else |
Mauro Carvalho Chehab | ac89758 | 2013-02-15 13:39:31 -0200 | [diff] [blame] | 2023 | err = -EOPNOTSUPP; |
Steven Toth | 363429a | 2008-09-12 01:34:28 -0300 | [diff] [blame] | 2024 | |
Steven Toth | e7fee0f3 | 2008-09-11 10:23:01 -0300 | [diff] [blame] | 2025 | out: |
| 2026 | kfree(tvp); |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 2027 | return err; |
| 2028 | } |
| 2029 | |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2030 | static int dtv_set_frontend(struct dvb_frontend *fe) |
Mauro Carvalho Chehab | 9682cea | 2012-01-01 16:11:12 -0300 | [diff] [blame] | 2031 | { |
Mauro Carvalho Chehab | 9682cea | 2012-01-01 16:11:12 -0300 | [diff] [blame] | 2032 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
| 2033 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
| 2034 | struct dvb_frontend_tune_settings fetunesettings; |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2035 | u32 rolloff = 0; |
Mauro Carvalho Chehab | 9682cea | 2012-01-01 16:11:12 -0300 | [diff] [blame] | 2036 | |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2037 | if (dvb_frontend_check_parameters(fe) < 0) |
| 2038 | return -EINVAL; |
Mauro Carvalho Chehab | 9682cea | 2012-01-01 16:11:12 -0300 | [diff] [blame] | 2039 | |
| 2040 | /* |
Chris Rankin | 556a044 | 2012-04-06 18:38:18 -0300 | [diff] [blame] | 2041 | * Initialize output parameters to match the values given by |
| 2042 | * the user. FE_SET_FRONTEND triggers an initial frontend event |
| 2043 | * with status = 0, which copies output parameters to userspace. |
| 2044 | */ |
| 2045 | dtv_property_legacy_params_sync(fe, &fepriv->parameters_out); |
| 2046 | |
| 2047 | /* |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2048 | * Be sure that the bandwidth will be filled for all |
| 2049 | * non-satellite systems, as tuners need to know what |
| 2050 | * low pass/Nyquist half filter should be applied, in |
| 2051 | * order to avoid inter-channel noise. |
| 2052 | * |
| 2053 | * ISDB-T and DVB-T/T2 already sets bandwidth. |
| 2054 | * ATSC and DVB-C don't set, so, the core should fill it. |
| 2055 | * |
| 2056 | * On DVB-C Annex A and C, the bandwidth is a function of |
| 2057 | * the roll-off and symbol rate. Annex B defines different |
| 2058 | * roll-off factors depending on the modulation. Fortunately, |
| 2059 | * Annex B is only used with 6MHz, so there's no need to |
| 2060 | * calculate it. |
| 2061 | * |
| 2062 | * While not officially supported, a side effect of handling it at |
| 2063 | * the cache level is that a program could retrieve the bandwidth |
| 2064 | * via DTV_BANDWIDTH_HZ, which may be useful for test programs. |
| 2065 | */ |
| 2066 | switch (c->delivery_system) { |
| 2067 | case SYS_ATSC: |
| 2068 | case SYS_DVBC_ANNEX_B: |
| 2069 | c->bandwidth_hz = 6000000; |
| 2070 | break; |
| 2071 | case SYS_DVBC_ANNEX_A: |
| 2072 | rolloff = 115; |
| 2073 | break; |
| 2074 | case SYS_DVBC_ANNEX_C: |
| 2075 | rolloff = 113; |
| 2076 | break; |
| 2077 | default: |
| 2078 | break; |
| 2079 | } |
| 2080 | if (rolloff) |
| 2081 | c->bandwidth_hz = (c->symbol_rate * rolloff) / 100; |
Mauro Carvalho Chehab | 9682cea | 2012-01-01 16:11:12 -0300 | [diff] [blame] | 2082 | |
| 2083 | /* force auto frequency inversion if requested */ |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2084 | if (dvb_force_auto_inversion) |
Mauro Carvalho Chehab | 9682cea | 2012-01-01 16:11:12 -0300 | [diff] [blame] | 2085 | c->inversion = INVERSION_AUTO; |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2086 | |
| 2087 | /* |
| 2088 | * without hierarchical coding code_rate_LP is irrelevant, |
| 2089 | * so we tolerate the otherwise invalid FEC_NONE setting |
| 2090 | */ |
| 2091 | if (c->hierarchy == HIERARCHY_NONE && c->code_rate_LP == FEC_NONE) |
| 2092 | c->code_rate_LP = FEC_AUTO; |
Mauro Carvalho Chehab | 9682cea | 2012-01-01 16:11:12 -0300 | [diff] [blame] | 2093 | |
| 2094 | /* get frontend-specific tuning settings */ |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2095 | memset(&fetunesettings, 0, sizeof(struct dvb_frontend_tune_settings)); |
Mauro Carvalho Chehab | 9682cea | 2012-01-01 16:11:12 -0300 | [diff] [blame] | 2096 | if (fe->ops.get_tune_settings && (fe->ops.get_tune_settings(fe, &fetunesettings) == 0)) { |
| 2097 | fepriv->min_delay = (fetunesettings.min_delay_ms * HZ) / 1000; |
| 2098 | fepriv->max_drift = fetunesettings.max_drift; |
| 2099 | fepriv->step_size = fetunesettings.step_size; |
| 2100 | } else { |
| 2101 | /* default values */ |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2102 | switch (c->delivery_system) { |
Mauro Carvalho Chehab | 910a5f2 | 2012-05-07 15:01:37 -0300 | [diff] [blame] | 2103 | case SYS_DVBS: |
| 2104 | case SYS_DVBS2: |
| 2105 | case SYS_ISDBS: |
| 2106 | case SYS_TURBO: |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2107 | case SYS_DVBC_ANNEX_A: |
| 2108 | case SYS_DVBC_ANNEX_C: |
| 2109 | fepriv->min_delay = HZ / 20; |
Mauro Carvalho Chehab | 9682cea | 2012-01-01 16:11:12 -0300 | [diff] [blame] | 2110 | fepriv->step_size = c->symbol_rate / 16000; |
| 2111 | fepriv->max_drift = c->symbol_rate / 2000; |
| 2112 | break; |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2113 | case SYS_DVBT: |
| 2114 | case SYS_DVBT2: |
| 2115 | case SYS_ISDBT: |
Antti Palosaari | 224b664 | 2012-08-12 22:33:21 -0300 | [diff] [blame] | 2116 | case SYS_DTMB: |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2117 | fepriv->min_delay = HZ / 20; |
Mauro Carvalho Chehab | 9682cea | 2012-01-01 16:11:12 -0300 | [diff] [blame] | 2118 | fepriv->step_size = fe->ops.info.frequency_stepsize * 2; |
| 2119 | fepriv->max_drift = (fe->ops.info.frequency_stepsize * 2) + 1; |
| 2120 | break; |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2121 | default: |
| 2122 | /* |
| 2123 | * FIXME: This sounds wrong! if freqency_stepsize is |
| 2124 | * defined by the frontend, why not use it??? |
| 2125 | */ |
| 2126 | fepriv->min_delay = HZ / 20; |
| 2127 | fepriv->step_size = 0; /* no zigzag */ |
Mauro Carvalho Chehab | 9682cea | 2012-01-01 16:11:12 -0300 | [diff] [blame] | 2128 | fepriv->max_drift = 0; |
| 2129 | break; |
| 2130 | } |
| 2131 | } |
| 2132 | if (dvb_override_tune_delay > 0) |
| 2133 | fepriv->min_delay = (dvb_override_tune_delay * HZ) / 1000; |
| 2134 | |
| 2135 | fepriv->state = FESTATE_RETUNE; |
| 2136 | |
| 2137 | /* Request the search algorithm to search */ |
| 2138 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; |
| 2139 | |
| 2140 | dvb_frontend_clear_events(fe); |
| 2141 | dvb_frontend_add_event(fe, 0); |
| 2142 | dvb_frontend_wakeup(fe); |
| 2143 | fepriv->status = 0; |
| 2144 | |
| 2145 | return 0; |
| 2146 | } |
| 2147 | |
| 2148 | |
Arnd Bergmann | 16ef8de | 2010-04-27 00:24:00 +0200 | [diff] [blame] | 2149 | static int dvb_frontend_ioctl_legacy(struct file *file, |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 2150 | unsigned int cmd, void *parg) |
| 2151 | { |
| 2152 | struct dvb_device *dvbdev = file->private_data; |
| 2153 | struct dvb_frontend *fe = dvbdev->priv; |
| 2154 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2155 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
Mauro Carvalho Chehab | ac89758 | 2013-02-15 13:39:31 -0200 | [diff] [blame] | 2156 | int err = -EOPNOTSUPP; |
Steven Toth | 13c97bf | 2008-09-04 21:19:43 -0300 | [diff] [blame] | 2157 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2158 | switch (cmd) { |
| 2159 | case FE_GET_INFO: { |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 2160 | struct dvb_frontend_info* info = parg; |
Mauro Carvalho Chehab | 9474c5e | 2012-01-05 12:28:20 -0200 | [diff] [blame] | 2161 | |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 2162 | memcpy(info, &fe->ops.info, sizeof(struct dvb_frontend_info)); |
Guillaume Audirac | 2030c03 | 2010-05-06 09:30:25 -0300 | [diff] [blame] | 2163 | dvb_frontend_get_frequency_limits(fe, &info->frequency_min, &info->frequency_max); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2164 | |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2165 | /* |
| 2166 | * Associate the 4 delivery systems supported by DVBv3 |
| 2167 | * API with their DVBv5 counterpart. For the other standards, |
| 2168 | * use the closest type, assuming that it would hopefully |
| 2169 | * work with a DVBv3 application. |
| 2170 | * It should be noticed that, on multi-frontend devices with |
| 2171 | * different types (terrestrial and cable, for example), |
| 2172 | * a pure DVBv3 application won't be able to use all delivery |
| 2173 | * systems. Yet, changing the DVBv5 cache to the other delivery |
| 2174 | * system should be enough for making it work. |
| 2175 | */ |
| 2176 | switch (dvbv3_type(c->delivery_system)) { |
| 2177 | case DVBV3_QPSK: |
Mauro Carvalho Chehab | 9474c5e | 2012-01-05 12:28:20 -0200 | [diff] [blame] | 2178 | info->type = FE_QPSK; |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2179 | break; |
| 2180 | case DVBV3_ATSC: |
Mauro Carvalho Chehab | 9474c5e | 2012-01-05 12:28:20 -0200 | [diff] [blame] | 2181 | info->type = FE_ATSC; |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2182 | break; |
| 2183 | case DVBV3_QAM: |
Mauro Carvalho Chehab | 9474c5e | 2012-01-05 12:28:20 -0200 | [diff] [blame] | 2184 | info->type = FE_QAM; |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2185 | break; |
| 2186 | case DVBV3_OFDM: |
Mauro Carvalho Chehab | 9474c5e | 2012-01-05 12:28:20 -0200 | [diff] [blame] | 2187 | info->type = FE_OFDM; |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2188 | break; |
| 2189 | default: |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 2190 | dev_err(fe->dvb->device, |
| 2191 | "%s: doesn't know how to handle a DVBv3 call to delivery system %i\n", |
| 2192 | __func__, c->delivery_system); |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2193 | fe->ops.info.type = FE_OFDM; |
| 2194 | } |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 2195 | dev_dbg(fe->dvb->device, "%s: current delivery system on cache: %d, V3 type: %d\n", |
| 2196 | __func__, c->delivery_system, fe->ops.info.type); |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2197 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2198 | /* Force the CAN_INVERSION_AUTO bit on. If the frontend doesn't |
| 2199 | * do it, it is done for it. */ |
| 2200 | info->caps |= FE_CAN_INVERSION_AUTO; |
| 2201 | err = 0; |
| 2202 | break; |
| 2203 | } |
| 2204 | |
Peter Beutner | 6757ccc | 2005-07-07 17:57:36 -0700 | [diff] [blame] | 2205 | case FE_READ_STATUS: { |
| 2206 | fe_status_t* status = parg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2207 | |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 2208 | /* if retune was requested but hasn't occurred yet, prevent |
Peter Beutner | 6757ccc | 2005-07-07 17:57:36 -0700 | [diff] [blame] | 2209 | * that user get signal state from previous tuning */ |
Janne Grunau | 0188625 | 2009-09-01 19:23:09 -0300 | [diff] [blame] | 2210 | if (fepriv->state == FESTATE_RETUNE || |
| 2211 | fepriv->state == FESTATE_ERROR) { |
Peter Beutner | 6757ccc | 2005-07-07 17:57:36 -0700 | [diff] [blame] | 2212 | err=0; |
| 2213 | *status = 0; |
| 2214 | break; |
| 2215 | } |
| 2216 | |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 2217 | if (fe->ops.read_status) |
| 2218 | err = fe->ops.read_status(fe, status); |
Peter Beutner | 6757ccc | 2005-07-07 17:57:36 -0700 | [diff] [blame] | 2219 | break; |
| 2220 | } |
Antti Palosaari | 48caa6f | 2012-08-09 19:00:51 -0300 | [diff] [blame] | 2221 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2222 | case FE_READ_BER: |
Antti Palosaari | 48caa6f | 2012-08-09 19:00:51 -0300 | [diff] [blame] | 2223 | if (fe->ops.read_ber) { |
| 2224 | if (fepriv->thread) |
| 2225 | err = fe->ops.read_ber(fe, (__u32 *) parg); |
| 2226 | else |
| 2227 | err = -EAGAIN; |
| 2228 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2229 | break; |
| 2230 | |
| 2231 | case FE_READ_SIGNAL_STRENGTH: |
Antti Palosaari | 48caa6f | 2012-08-09 19:00:51 -0300 | [diff] [blame] | 2232 | if (fe->ops.read_signal_strength) { |
| 2233 | if (fepriv->thread) |
| 2234 | err = fe->ops.read_signal_strength(fe, (__u16 *) parg); |
| 2235 | else |
| 2236 | err = -EAGAIN; |
| 2237 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2238 | break; |
| 2239 | |
| 2240 | case FE_READ_SNR: |
Antti Palosaari | 48caa6f | 2012-08-09 19:00:51 -0300 | [diff] [blame] | 2241 | if (fe->ops.read_snr) { |
| 2242 | if (fepriv->thread) |
| 2243 | err = fe->ops.read_snr(fe, (__u16 *) parg); |
| 2244 | else |
| 2245 | err = -EAGAIN; |
| 2246 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2247 | break; |
| 2248 | |
| 2249 | case FE_READ_UNCORRECTED_BLOCKS: |
Antti Palosaari | 48caa6f | 2012-08-09 19:00:51 -0300 | [diff] [blame] | 2250 | if (fe->ops.read_ucblocks) { |
| 2251 | if (fepriv->thread) |
| 2252 | err = fe->ops.read_ucblocks(fe, (__u32 *) parg); |
| 2253 | else |
| 2254 | err = -EAGAIN; |
| 2255 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2256 | break; |
| 2257 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2258 | case FE_DISEQC_RESET_OVERLOAD: |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 2259 | if (fe->ops.diseqc_reset_overload) { |
| 2260 | err = fe->ops.diseqc_reset_overload(fe); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2261 | fepriv->state = FESTATE_DISEQC; |
| 2262 | fepriv->status = 0; |
| 2263 | } |
| 2264 | break; |
| 2265 | |
| 2266 | case FE_DISEQC_SEND_MASTER_CMD: |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 2267 | if (fe->ops.diseqc_send_master_cmd) { |
| 2268 | err = fe->ops.diseqc_send_master_cmd(fe, (struct dvb_diseqc_master_cmd*) parg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2269 | fepriv->state = FESTATE_DISEQC; |
| 2270 | fepriv->status = 0; |
| 2271 | } |
| 2272 | break; |
| 2273 | |
| 2274 | case FE_DISEQC_SEND_BURST: |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 2275 | if (fe->ops.diseqc_send_burst) { |
| 2276 | err = fe->ops.diseqc_send_burst(fe, (fe_sec_mini_cmd_t) parg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2277 | fepriv->state = FESTATE_DISEQC; |
| 2278 | fepriv->status = 0; |
| 2279 | } |
| 2280 | break; |
| 2281 | |
| 2282 | case FE_SET_TONE: |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 2283 | if (fe->ops.set_tone) { |
| 2284 | err = fe->ops.set_tone(fe, (fe_sec_tone_mode_t) parg); |
Andrew de Quincey | 6445401 | 2006-04-06 14:32:23 -0300 | [diff] [blame] | 2285 | fepriv->tone = (fe_sec_tone_mode_t) parg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2286 | fepriv->state = FESTATE_DISEQC; |
| 2287 | fepriv->status = 0; |
| 2288 | } |
| 2289 | break; |
| 2290 | |
| 2291 | case FE_SET_VOLTAGE: |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 2292 | if (fe->ops.set_voltage) { |
| 2293 | err = fe->ops.set_voltage(fe, (fe_sec_voltage_t) parg); |
Andrew de Quincey | 6445401 | 2006-04-06 14:32:23 -0300 | [diff] [blame] | 2294 | fepriv->voltage = (fe_sec_voltage_t) parg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2295 | fepriv->state = FESTATE_DISEQC; |
| 2296 | fepriv->status = 0; |
| 2297 | } |
| 2298 | break; |
| 2299 | |
| 2300 | case FE_DISHNETWORK_SEND_LEGACY_CMD: |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 2301 | if (fe->ops.dishnetwork_send_legacy_command) { |
| 2302 | err = fe->ops.dishnetwork_send_legacy_command(fe, (unsigned long) parg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2303 | fepriv->state = FESTATE_DISEQC; |
| 2304 | fepriv->status = 0; |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 2305 | } else if (fe->ops.set_voltage) { |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 2306 | /* |
| 2307 | * NOTE: This is a fallback condition. Some frontends |
| 2308 | * (stv0299 for instance) take longer than 8msec to |
| 2309 | * respond to a set_voltage command. Those switches |
| 2310 | * need custom routines to switch properly. For all |
Guillaume Audirac | 2030c03 | 2010-05-06 09:30:25 -0300 | [diff] [blame] | 2311 | * other frontends, the following should work ok. |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 2312 | * Dish network legacy switches (as used by Dish500) |
| 2313 | * are controlled by sending 9-bit command words |
| 2314 | * spaced 8msec apart. |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 2315 | * the actual command word is switch/port dependent |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 2316 | * so it is up to the userspace application to send |
| 2317 | * the right command. |
| 2318 | * The command must always start with a '0' after |
| 2319 | * initialization, so parg is 8 bits and does not |
| 2320 | * include the initialization or start bit |
| 2321 | */ |
Hans Verkuil | c6eb8ea | 2008-09-03 17:11:54 -0300 | [diff] [blame] | 2322 | unsigned long swcmd = ((unsigned long) parg) << 1; |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 2323 | struct timeval nexttime; |
| 2324 | struct timeval tv[10]; |
| 2325 | int i; |
| 2326 | u8 last = 1; |
| 2327 | if (dvb_frontend_debug) |
Hans Verkuil | c6eb8ea | 2008-09-03 17:11:54 -0300 | [diff] [blame] | 2328 | printk("%s switch command: 0x%04lx\n", __func__, swcmd); |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 2329 | do_gettimeofday(&nexttime); |
| 2330 | if (dvb_frontend_debug) |
Ezequiel Garcia | b9b1b3a | 2012-10-23 15:57:23 -0300 | [diff] [blame] | 2331 | tv[0] = nexttime; |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 2332 | /* before sending a command, initialize by sending |
| 2333 | * a 32ms 18V to the switch |
| 2334 | */ |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 2335 | fe->ops.set_voltage(fe, SEC_VOLTAGE_18); |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 2336 | dvb_frontend_sleep_until(&nexttime, 32000); |
| 2337 | |
| 2338 | for (i = 0; i < 9; i++) { |
| 2339 | if (dvb_frontend_debug) |
| 2340 | do_gettimeofday(&tv[i + 1]); |
Hans Verkuil | c6eb8ea | 2008-09-03 17:11:54 -0300 | [diff] [blame] | 2341 | if ((swcmd & 0x01) != last) { |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 2342 | /* set voltage to (last ? 13V : 18V) */ |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 2343 | fe->ops.set_voltage(fe, (last) ? SEC_VOLTAGE_13 : SEC_VOLTAGE_18); |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 2344 | last = (last) ? 0 : 1; |
| 2345 | } |
Hans Verkuil | c6eb8ea | 2008-09-03 17:11:54 -0300 | [diff] [blame] | 2346 | swcmd = swcmd >> 1; |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 2347 | if (i != 8) |
| 2348 | dvb_frontend_sleep_until(&nexttime, 8000); |
| 2349 | } |
| 2350 | if (dvb_frontend_debug) { |
| 2351 | 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] | 2352 | __func__, fe->dvb->num); |
NooneImportant | 83b75b0 | 2005-11-08 21:35:27 -0800 | [diff] [blame] | 2353 | for (i = 1; i < 10; i++) |
| 2354 | printk("%d: %d\n", i, timeval_usec_diff(tv[i-1] , tv[i])); |
| 2355 | } |
| 2356 | err = 0; |
| 2357 | fepriv->state = FESTATE_DISEQC; |
| 2358 | fepriv->status = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2359 | } |
| 2360 | break; |
| 2361 | |
| 2362 | case FE_DISEQC_RECV_SLAVE_REPLY: |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 2363 | if (fe->ops.diseqc_recv_slave_reply) |
| 2364 | 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] | 2365 | break; |
| 2366 | |
| 2367 | case FE_ENABLE_HIGH_LNB_VOLTAGE: |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 2368 | if (fe->ops.enable_high_lnb_voltage) |
| 2369 | err = fe->ops.enable_high_lnb_voltage(fe, (long) parg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2370 | break; |
| 2371 | |
Mauro Carvalho Chehab | 9682cea | 2012-01-01 16:11:12 -0300 | [diff] [blame] | 2372 | case FE_SET_FRONTEND: |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 2373 | err = dvbv3_set_delivery_system(fe); |
Mauro Carvalho Chehab | 04be0f7 | 2012-01-01 16:11:14 -0300 | [diff] [blame] | 2374 | if (err) |
| 2375 | break; |
| 2376 | |
Mauro Carvalho Chehab | e399ce7 | 2012-01-01 16:11:16 -0300 | [diff] [blame] | 2377 | err = dtv_property_cache_sync(fe, c, parg); |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2378 | if (err) |
| 2379 | break; |
| 2380 | err = dtv_set_frontend(fe); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2381 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2382 | case FE_GET_EVENT: |
| 2383 | err = dvb_frontend_get_event (fe, parg, file->f_flags); |
| 2384 | break; |
| 2385 | |
| 2386 | case FE_GET_FRONTEND: |
Mauro Carvalho Chehab | e399ce7 | 2012-01-01 16:11:16 -0300 | [diff] [blame] | 2387 | err = dtv_get_frontend(fe, parg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2388 | break; |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 2389 | |
| 2390 | case FE_SET_FRONTEND_TUNE_MODE: |
Hans Verkuil | e18828e | 2006-01-09 15:25:28 -0200 | [diff] [blame] | 2391 | fepriv->tune_mode_flags = (unsigned long) parg; |
Trent Piepho | 1b172e0 | 2006-06-29 13:16:04 -0300 | [diff] [blame] | 2392 | err = 0; |
Andrew de Quincey | 36cb557 | 2006-01-09 15:25:07 -0200 | [diff] [blame] | 2393 | break; |
Peter Senna Tschudin | c2c1b41 | 2012-09-28 05:37:22 -0300 | [diff] [blame] | 2394 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2395 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2396 | return err; |
| 2397 | } |
| 2398 | |
Steven Toth | 6b73eea | 2008-09-04 01:12:25 -0300 | [diff] [blame] | 2399 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2400 | static unsigned int dvb_frontend_poll(struct file *file, struct poll_table_struct *wait) |
| 2401 | { |
| 2402 | struct dvb_device *dvbdev = file->private_data; |
| 2403 | struct dvb_frontend *fe = dvbdev->priv; |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 2404 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2405 | |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 2406 | dev_dbg_ratelimited(fe->dvb->device, "%s:\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2407 | |
| 2408 | poll_wait (file, &fepriv->events.wait_queue, wait); |
| 2409 | |
| 2410 | if (fepriv->events.eventw != fepriv->events.eventr) |
| 2411 | return (POLLIN | POLLRDNORM | POLLPRI); |
| 2412 | |
| 2413 | return 0; |
| 2414 | } |
| 2415 | |
| 2416 | static int dvb_frontend_open(struct inode *inode, struct file *file) |
| 2417 | { |
| 2418 | struct dvb_device *dvbdev = file->private_data; |
| 2419 | struct dvb_frontend *fe = dvbdev->priv; |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 2420 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Darron Broad | 59b1842 | 2008-10-11 11:44:05 -0300 | [diff] [blame] | 2421 | struct dvb_adapter *adapter = fe->dvb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2422 | int ret; |
| 2423 | |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 2424 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
matthieu castet | e36309f | 2010-05-05 15:59:20 -0300 | [diff] [blame] | 2425 | if (fepriv->exit == DVB_FE_DEVICE_REMOVED) |
| 2426 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2427 | |
Darron Broad | 59b1842 | 2008-10-11 11:44:05 -0300 | [diff] [blame] | 2428 | if (adapter->mfe_shared) { |
| 2429 | mutex_lock (&adapter->mfe_lock); |
Darron Broad | 6594690 | 2008-10-15 13:37:59 -0300 | [diff] [blame] | 2430 | |
| 2431 | if (adapter->mfe_dvbdev == NULL) |
| 2432 | adapter->mfe_dvbdev = dvbdev; |
| 2433 | |
| 2434 | else if (adapter->mfe_dvbdev != dvbdev) { |
| 2435 | struct dvb_device |
| 2436 | *mfedev = adapter->mfe_dvbdev; |
| 2437 | struct dvb_frontend |
| 2438 | *mfe = mfedev->priv; |
| 2439 | struct dvb_frontend_private |
| 2440 | *mfepriv = mfe->frontend_priv; |
| 2441 | int mferetry = (dvb_mfe_wait_time << 1); |
| 2442 | |
| 2443 | mutex_unlock (&adapter->mfe_lock); |
| 2444 | while (mferetry-- && (mfedev->users != -1 || |
| 2445 | mfepriv->thread != NULL)) { |
| 2446 | if(msleep_interruptible(500)) { |
| 2447 | if(signal_pending(current)) |
| 2448 | return -EINTR; |
Darron Broad | 59b1842 | 2008-10-11 11:44:05 -0300 | [diff] [blame] | 2449 | } |
| 2450 | } |
Darron Broad | 6594690 | 2008-10-15 13:37:59 -0300 | [diff] [blame] | 2451 | |
| 2452 | mutex_lock (&adapter->mfe_lock); |
| 2453 | if(adapter->mfe_dvbdev != dvbdev) { |
| 2454 | mfedev = adapter->mfe_dvbdev; |
| 2455 | mfe = mfedev->priv; |
| 2456 | mfepriv = mfe->frontend_priv; |
| 2457 | if (mfedev->users != -1 || |
| 2458 | mfepriv->thread != NULL) { |
| 2459 | mutex_unlock (&adapter->mfe_lock); |
| 2460 | return -EBUSY; |
| 2461 | } |
| 2462 | adapter->mfe_dvbdev = dvbdev; |
| 2463 | } |
Darron Broad | 59b1842 | 2008-10-11 11:44:05 -0300 | [diff] [blame] | 2464 | } |
| 2465 | } |
| 2466 | |
Oliver Endriss | 48136e1 | 2007-08-25 12:00:23 -0300 | [diff] [blame] | 2467 | if (dvbdev->users == -1 && fe->ops.ts_bus_ctrl) { |
| 2468 | if ((ret = fe->ops.ts_bus_ctrl(fe, 1)) < 0) |
Darron Broad | 59b1842 | 2008-10-11 11:44:05 -0300 | [diff] [blame] | 2469 | goto err0; |
Devin Heitmueller | 2d19693 | 2011-07-04 21:55:01 -0300 | [diff] [blame] | 2470 | |
| 2471 | /* If we took control of the bus, we need to force |
| 2472 | reinitialization. This is because many ts_bus_ctrl() |
| 2473 | functions strobe the RESET pin on the demod, and if the |
| 2474 | frontend thread already exists then the dvb_init() routine |
| 2475 | won't get called (which is what usually does initial |
| 2476 | register configuration). */ |
| 2477 | fepriv->reinitialise = 1; |
Steven Toth | ba7e6f3 | 2006-09-25 12:41:53 -0300 | [diff] [blame] | 2478 | } |
| 2479 | |
Oliver Endriss | 48136e1 | 2007-08-25 12:00:23 -0300 | [diff] [blame] | 2480 | if ((ret = dvb_generic_open (inode, file)) < 0) |
| 2481 | goto err1; |
Andrew de Quincey | 04c56d0 | 2006-07-10 03:34:14 -0300 | [diff] [blame] | 2482 | |
Oliver Endriss | 48136e1 | 2007-08-25 12:00:23 -0300 | [diff] [blame] | 2483 | if ((file->f_flags & O_ACCMODE) != O_RDONLY) { |
Andrew de Quincey | 04c56d0 | 2006-07-10 03:34:14 -0300 | [diff] [blame] | 2484 | /* normal tune mode when opened R/W */ |
| 2485 | fepriv->tune_mode_flags &= ~FE_TUNE_MODE_ONESHOT; |
| 2486 | fepriv->tone = -1; |
| 2487 | fepriv->voltage = -1; |
| 2488 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2489 | ret = dvb_frontend_start (fe); |
| 2490 | if (ret) |
Oliver Endriss | 48136e1 | 2007-08-25 12:00:23 -0300 | [diff] [blame] | 2491 | goto err2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2492 | |
| 2493 | /* empty event queue */ |
| 2494 | fepriv->events.eventr = fepriv->events.eventw = 0; |
| 2495 | } |
| 2496 | |
Darron Broad | 59b1842 | 2008-10-11 11:44:05 -0300 | [diff] [blame] | 2497 | if (adapter->mfe_shared) |
| 2498 | mutex_unlock (&adapter->mfe_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2499 | return ret; |
Oliver Endriss | 48136e1 | 2007-08-25 12:00:23 -0300 | [diff] [blame] | 2500 | |
| 2501 | err2: |
| 2502 | dvb_generic_release(inode, file); |
| 2503 | err1: |
| 2504 | if (dvbdev->users == -1 && fe->ops.ts_bus_ctrl) |
| 2505 | fe->ops.ts_bus_ctrl(fe, 0); |
Darron Broad | 59b1842 | 2008-10-11 11:44:05 -0300 | [diff] [blame] | 2506 | err0: |
| 2507 | if (adapter->mfe_shared) |
| 2508 | mutex_unlock (&adapter->mfe_lock); |
Oliver Endriss | 48136e1 | 2007-08-25 12:00:23 -0300 | [diff] [blame] | 2509 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2510 | } |
| 2511 | |
| 2512 | static int dvb_frontend_release(struct inode *inode, struct file *file) |
| 2513 | { |
| 2514 | struct dvb_device *dvbdev = file->private_data; |
| 2515 | struct dvb_frontend *fe = dvbdev->priv; |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 2516 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Markus Rechberger | ca5be9c | 2007-04-14 10:18:58 -0300 | [diff] [blame] | 2517 | int ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2518 | |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 2519 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2520 | |
Andreas Oberritter | b9d5efc | 2011-12-09 21:37:00 -0300 | [diff] [blame] | 2521 | if ((file->f_flags & O_ACCMODE) != O_RDONLY) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2522 | fepriv->release_jiffies = jiffies; |
Andreas Oberritter | b9d5efc | 2011-12-09 21:37:00 -0300 | [diff] [blame] | 2523 | mb(); |
| 2524 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2525 | |
Markus Rechberger | ca5be9c | 2007-04-14 10:18:58 -0300 | [diff] [blame] | 2526 | ret = dvb_generic_release (inode, file); |
| 2527 | |
Oliver Endriss | 48136e1 | 2007-08-25 12:00:23 -0300 | [diff] [blame] | 2528 | if (dvbdev->users == -1) { |
Andreas Oberritter | b9d5efc | 2011-12-09 21:37:00 -0300 | [diff] [blame] | 2529 | wake_up(&fepriv->wait_queue); |
Al Viro | 03feee3 | 2013-04-15 13:58:21 -0400 | [diff] [blame] | 2530 | if (fepriv->exit != DVB_FE_NO_EXIT) |
Oliver Endriss | 48136e1 | 2007-08-25 12:00:23 -0300 | [diff] [blame] | 2531 | wake_up(&dvbdev->wait_queue); |
Oliver Endriss | 48136e1 | 2007-08-25 12:00:23 -0300 | [diff] [blame] | 2532 | if (fe->ops.ts_bus_ctrl) |
| 2533 | fe->ops.ts_bus_ctrl(fe, 0); |
Markus Rechberger | ca5be9c | 2007-04-14 10:18:58 -0300 | [diff] [blame] | 2534 | } |
Oliver Endriss | 48136e1 | 2007-08-25 12:00:23 -0300 | [diff] [blame] | 2535 | |
Markus Rechberger | ca5be9c | 2007-04-14 10:18:58 -0300 | [diff] [blame] | 2536 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2537 | } |
| 2538 | |
Jan Engelhardt | 784e29d | 2009-01-11 06:12:43 -0300 | [diff] [blame] | 2539 | static const struct file_operations dvb_frontend_fops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2540 | .owner = THIS_MODULE, |
Arnd Bergmann | 16ef8de | 2010-04-27 00:24:00 +0200 | [diff] [blame] | 2541 | .unlocked_ioctl = dvb_generic_ioctl, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2542 | .poll = dvb_frontend_poll, |
| 2543 | .open = dvb_frontend_open, |
Arnd Bergmann | 6038f37 | 2010-08-15 18:52:59 +0200 | [diff] [blame] | 2544 | .release = dvb_frontend_release, |
| 2545 | .llseek = noop_llseek, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2546 | }; |
| 2547 | |
Antti Palosaari | 06bae12 | 2012-08-14 22:21:06 -0300 | [diff] [blame] | 2548 | int dvb_frontend_suspend(struct dvb_frontend *fe) |
| 2549 | { |
| 2550 | int ret = 0; |
| 2551 | |
| 2552 | dev_dbg(fe->dvb->device, "%s: adap=%d fe=%d\n", __func__, fe->dvb->num, |
| 2553 | fe->id); |
| 2554 | |
| 2555 | if (fe->ops.tuner_ops.sleep) |
| 2556 | ret = fe->ops.tuner_ops.sleep(fe); |
| 2557 | |
| 2558 | if (fe->ops.sleep) |
| 2559 | ret = fe->ops.sleep(fe); |
| 2560 | |
| 2561 | return ret; |
| 2562 | } |
| 2563 | EXPORT_SYMBOL(dvb_frontend_suspend); |
| 2564 | |
| 2565 | int dvb_frontend_resume(struct dvb_frontend *fe) |
| 2566 | { |
| 2567 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
| 2568 | int ret = 0; |
| 2569 | |
| 2570 | dev_dbg(fe->dvb->device, "%s: adap=%d fe=%d\n", __func__, fe->dvb->num, |
| 2571 | fe->id); |
| 2572 | |
| 2573 | if (fe->ops.init) |
| 2574 | ret = fe->ops.init(fe); |
| 2575 | |
| 2576 | if (fe->ops.tuner_ops.init) |
| 2577 | ret = fe->ops.tuner_ops.init(fe); |
| 2578 | |
| 2579 | fepriv->state = FESTATE_RETUNE; |
| 2580 | dvb_frontend_wakeup(fe); |
| 2581 | |
| 2582 | return ret; |
| 2583 | } |
| 2584 | EXPORT_SYMBOL(dvb_frontend_resume); |
| 2585 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2586 | int dvb_register_frontend(struct dvb_adapter* dvb, |
| 2587 | struct dvb_frontend* fe) |
| 2588 | { |
| 2589 | struct dvb_frontend_private *fepriv; |
| 2590 | static const struct dvb_device dvbdev_template = { |
| 2591 | .users = ~0, |
| 2592 | .writers = 1, |
| 2593 | .readers = (~0)-1, |
| 2594 | .fops = &dvb_frontend_fops, |
| 2595 | .kernel_ioctl = dvb_frontend_ioctl |
| 2596 | }; |
| 2597 | |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 2598 | dev_dbg(dvb->device, "%s:\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2599 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 2600 | if (mutex_lock_interruptible(&frontend_mutex)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2601 | return -ERESTARTSYS; |
| 2602 | |
Panagiotis Issaris | 7408187 | 2006-01-11 19:40:56 -0200 | [diff] [blame] | 2603 | fe->frontend_priv = kzalloc(sizeof(struct dvb_frontend_private), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2604 | if (fe->frontend_priv == NULL) { |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 2605 | mutex_unlock(&frontend_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2606 | return -ENOMEM; |
| 2607 | } |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 2608 | fepriv = fe->frontend_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2609 | |
Thomas Gleixner | a0a4714 | 2010-09-07 11:33:27 -0300 | [diff] [blame] | 2610 | sema_init(&fepriv->sem, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2611 | init_waitqueue_head (&fepriv->wait_queue); |
| 2612 | init_waitqueue_head (&fepriv->events.wait_queue); |
Matthias Kaehlcke | 03b7612 | 2007-07-30 14:58:10 -0300 | [diff] [blame] | 2613 | mutex_init(&fepriv->events.mtx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2614 | fe->dvb = dvb; |
| 2615 | fepriv->inversion = INVERSION_OFF; |
| 2616 | |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 2617 | dev_info(fe->dvb->device, |
| 2618 | "DVB: registering adapter %i frontend %i (%s)...\n", |
| 2619 | fe->dvb->num, fe->id, fe->ops.info.name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2620 | |
| 2621 | dvb_register_device (fe->dvb, &fepriv->dvbdev, &dvbdev_template, |
| 2622 | fe, DVB_DEVICE_FRONTEND); |
| 2623 | |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2624 | /* |
| 2625 | * Initialize the cache to the proper values according with the |
| 2626 | * first supported delivery system (ops->delsys[0]) |
| 2627 | */ |
Mauro Carvalho Chehab | 240ab50 | 2012-01-10 18:00:50 -0300 | [diff] [blame] | 2628 | |
Mauro Carvalho Chehab | be431b1 | 2013-03-18 15:25:36 -0300 | [diff] [blame] | 2629 | fe->dtv_property_cache.delivery_system = fe->ops.delsys[0]; |
Mauro Carvalho Chehab | 5bfaadd | 2012-01-01 16:11:13 -0300 | [diff] [blame] | 2630 | dvb_frontend_clear_cache(fe); |
| 2631 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 2632 | mutex_unlock(&frontend_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2633 | return 0; |
| 2634 | } |
| 2635 | EXPORT_SYMBOL(dvb_register_frontend); |
| 2636 | |
| 2637 | int dvb_unregister_frontend(struct dvb_frontend* fe) |
| 2638 | { |
Johannes Stezenbach | 0c53c70 | 2005-05-16 21:54:24 -0700 | [diff] [blame] | 2639 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
Antti Palosaari | 36bdbc3 | 2012-08-15 20:28:37 -0300 | [diff] [blame] | 2640 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2641 | |
Markus Rechberger | 57861b4 | 2007-04-14 10:19:18 -0300 | [diff] [blame] | 2642 | mutex_lock(&frontend_mutex); |
Markus Rechberger | ca5be9c | 2007-04-14 10:18:58 -0300 | [diff] [blame] | 2643 | dvb_frontend_stop (fe); |
Markus Rechberger | 57861b4 | 2007-04-14 10:19:18 -0300 | [diff] [blame] | 2644 | mutex_unlock(&frontend_mutex); |
| 2645 | |
| 2646 | if (fepriv->dvbdev->users < -1) |
| 2647 | wait_event(fepriv->dvbdev->wait_queue, |
| 2648 | fepriv->dvbdev->users==-1); |
| 2649 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 2650 | mutex_lock(&frontend_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2651 | dvb_unregister_device (fepriv->dvbdev); |
Andrew de Quincey | d995506 | 2006-08-08 09:10:08 -0300 | [diff] [blame] | 2652 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2653 | /* fe is invalid now */ |
| 2654 | kfree(fepriv); |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 2655 | mutex_unlock(&frontend_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2656 | return 0; |
| 2657 | } |
| 2658 | EXPORT_SYMBOL(dvb_unregister_frontend); |
Andrew de Quincey | f52a838 | 2006-08-08 09:10:09 -0300 | [diff] [blame] | 2659 | |
Mauro Carvalho Chehab | 149ef72 | 2008-04-29 21:38:46 -0300 | [diff] [blame] | 2660 | #ifdef CONFIG_MEDIA_ATTACH |
Andrew de Quincey | f52a838 | 2006-08-08 09:10:09 -0300 | [diff] [blame] | 2661 | void dvb_frontend_detach(struct dvb_frontend* fe) |
| 2662 | { |
| 2663 | void *ptr; |
| 2664 | |
| 2665 | if (fe->ops.release_sec) { |
| 2666 | fe->ops.release_sec(fe); |
| 2667 | symbol_put_addr(fe->ops.release_sec); |
| 2668 | } |
| 2669 | if (fe->ops.tuner_ops.release) { |
| 2670 | fe->ops.tuner_ops.release(fe); |
| 2671 | symbol_put_addr(fe->ops.tuner_ops.release); |
| 2672 | } |
Michael Krufky | 2426a27 | 2007-12-21 11:34:45 -0300 | [diff] [blame] | 2673 | if (fe->ops.analog_ops.release) { |
| 2674 | fe->ops.analog_ops.release(fe); |
| 2675 | symbol_put_addr(fe->ops.analog_ops.release); |
| 2676 | } |
Andrew de Quincey | f52a838 | 2006-08-08 09:10:09 -0300 | [diff] [blame] | 2677 | ptr = (void*)fe->ops.release; |
| 2678 | if (ptr) { |
| 2679 | fe->ops.release(fe); |
| 2680 | symbol_put_addr(ptr); |
| 2681 | } |
| 2682 | } |
| 2683 | #else |
| 2684 | void dvb_frontend_detach(struct dvb_frontend* fe) |
| 2685 | { |
| 2686 | if (fe->ops.release_sec) |
| 2687 | fe->ops.release_sec(fe); |
| 2688 | if (fe->ops.tuner_ops.release) |
| 2689 | fe->ops.tuner_ops.release(fe); |
Michael Krufky | 2426a27 | 2007-12-21 11:34:45 -0300 | [diff] [blame] | 2690 | if (fe->ops.analog_ops.release) |
| 2691 | fe->ops.analog_ops.release(fe); |
Andrew de Quincey | f52a838 | 2006-08-08 09:10:09 -0300 | [diff] [blame] | 2692 | if (fe->ops.release) |
| 2693 | fe->ops.release(fe); |
| 2694 | } |
| 2695 | #endif |
| 2696 | EXPORT_SYMBOL(dvb_frontend_detach); |