Mauro Carvalho Chehab | 446e4a6 | 2009-12-11 08:34:07 -0300 | [diff] [blame] | 1 | /* |
| 2 | * Remote Controller core header |
| 3 | * |
Mauro Carvalho Chehab | 37e59f8 | 2014-02-07 08:03:07 -0200 | [diff] [blame] | 4 | * Copyright (C) 2009-2010 by Mauro Carvalho Chehab |
Mauro Carvalho Chehab | 995187b | 2010-03-24 20:47:53 -0300 | [diff] [blame] | 5 | * |
Mauro Carvalho Chehab | 446e4a6 | 2009-12-11 08:34:07 -0300 | [diff] [blame] | 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation version 2 of the License. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | */ |
| 15 | |
Mauro Carvalho Chehab | ca86674 | 2010-11-17 13:53:11 -0300 | [diff] [blame] | 16 | #ifndef _RC_CORE |
| 17 | #define _RC_CORE |
Mauro Carvalho Chehab | 446e4a6 | 2009-12-11 08:34:07 -0300 | [diff] [blame] | 18 | |
Mauro Carvalho Chehab | 446e4a6 | 2009-12-11 08:34:07 -0300 | [diff] [blame] | 19 | #include <linux/spinlock.h> |
Mauro Carvalho Chehab | a3572c3 | 2010-03-20 20:59:44 -0300 | [diff] [blame] | 20 | #include <linux/kfifo.h> |
| 21 | #include <linux/time.h> |
Mauro Carvalho Chehab | 9f15478 | 2010-03-21 13:00:55 -0300 | [diff] [blame] | 22 | #include <linux/timer.h> |
Mauro Carvalho Chehab | 02858ee | 2010-04-02 20:01:00 -0300 | [diff] [blame] | 23 | #include <media/rc-map.h> |
Mauro Carvalho Chehab | 446e4a6 | 2009-12-11 08:34:07 -0300 | [diff] [blame] | 24 | |
Mauro Carvalho Chehab | 6bda964 | 2010-11-17 13:28:38 -0300 | [diff] [blame] | 25 | extern int rc_core_debug; |
Joe Perches | 86b0dbe | 2011-08-21 19:56:45 -0300 | [diff] [blame] | 26 | #define IR_dprintk(level, fmt, ...) \ |
| 27 | do { \ |
| 28 | if (rc_core_debug >= level) \ |
Mauro Carvalho Chehab | 7cec72c | 2014-07-25 23:25:36 -0300 | [diff] [blame] | 29 | printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__); \ |
Joe Perches | 86b0dbe | 2011-08-21 19:56:45 -0300 | [diff] [blame] | 30 | } while (0) |
Mauro Carvalho Chehab | 446e4a6 | 2009-12-11 08:34:07 -0300 | [diff] [blame] | 31 | |
Mauro Carvalho Chehab | 5b6137dc | 2016-07-17 09:16:57 -0300 | [diff] [blame] | 32 | /** |
| 33 | * enum rc_driver_type - type of the RC output |
| 34 | * |
| 35 | * @RC_DRIVER_SCANCODE: Driver or hardware generates a scancode |
| 36 | * @RC_DRIVER_IR_RAW: Driver or hardware generates pulse/space sequences. |
| 37 | * It needs a Infra-Red pulse/space decoder |
| 38 | */ |
Mauro Carvalho Chehab | 626cf69 | 2010-04-06 23:21:46 -0300 | [diff] [blame] | 39 | enum rc_driver_type { |
Mauro Carvalho Chehab | 5b6137dc | 2016-07-17 09:16:57 -0300 | [diff] [blame] | 40 | RC_DRIVER_SCANCODE = 0, |
| 41 | RC_DRIVER_IR_RAW, |
Mauro Carvalho Chehab | 626cf69 | 2010-04-06 23:21:46 -0300 | [diff] [blame] | 42 | }; |
| 43 | |
Mauro Carvalho Chehab | 9dfe4e8 | 2010-04-04 14:06:55 -0300 | [diff] [blame] | 44 | /** |
James Hogan | 00942d1 | 2014-01-17 10:58:49 -0300 | [diff] [blame] | 45 | * struct rc_scancode_filter - Filter scan codes. |
| 46 | * @data: Scancode data to match. |
| 47 | * @mask: Mask of bits of scancode to compare. |
| 48 | */ |
| 49 | struct rc_scancode_filter { |
| 50 | u32 data; |
| 51 | u32 mask; |
| 52 | }; |
| 53 | |
| 54 | /** |
| 55 | * enum rc_filter_type - Filter type constants. |
| 56 | * @RC_FILTER_NORMAL: Filter for normal operation. |
| 57 | * @RC_FILTER_WAKEUP: Filter for waking from suspend. |
| 58 | * @RC_FILTER_MAX: Number of filter types. |
| 59 | */ |
| 60 | enum rc_filter_type { |
| 61 | RC_FILTER_NORMAL = 0, |
| 62 | RC_FILTER_WAKEUP, |
| 63 | |
| 64 | RC_FILTER_MAX |
| 65 | }; |
| 66 | |
| 67 | /** |
David Härdeman | d8b4b58 | 2010-10-29 16:08:23 -0300 | [diff] [blame] | 68 | * struct rc_dev - represents a remote control device |
| 69 | * @dev: driver model's view of this device |
Mauro Carvalho Chehab | 078600f | 2016-03-02 08:00:15 -0300 | [diff] [blame] | 70 | * @initialized: 1 if the device init has completed, 0 otherwise |
Heiner Kallweit | ddbf7d5 | 2016-09-30 17:42:07 -0300 | [diff] [blame] | 71 | * @managed_alloc: devm_rc_allocate_device was used to create rc_dev |
David Härdeman | 99b0f3c | 2014-04-04 19:06:06 -0300 | [diff] [blame] | 72 | * @sysfs_groups: sysfs attribute groups |
David Härdeman | d8b4b58 | 2010-10-29 16:08:23 -0300 | [diff] [blame] | 73 | * @input_name: name of the input child device |
| 74 | * @input_phys: physical path to the input child device |
| 75 | * @input_id: id of the input child device (struct input_id) |
| 76 | * @driver_name: name of the hardware driver which registered this device |
| 77 | * @map_name: name of the default keymap |
Mauro Carvalho Chehab | b088ba6 | 2010-11-17 14:28:27 -0300 | [diff] [blame] | 78 | * @rc_map: current scan/key table |
Jarod Wilson | 08aeb7c | 2011-05-11 15:14:31 -0300 | [diff] [blame] | 79 | * @lock: used to ensure we've filled in all protocol details before |
| 80 | * anyone can call show_protocols or store_protocols |
David Härdeman | fcb1309 | 2015-05-19 19:03:17 -0300 | [diff] [blame] | 81 | * @minor: unique minor remote control device number |
David Härdeman | d8b4b58 | 2010-10-29 16:08:23 -0300 | [diff] [blame] | 82 | * @raw: additional data for raw pulse/space devices |
| 83 | * @input_dev: the input child device used to communicate events to userspace |
Jarod Wilson | 08aeb7c | 2011-05-11 15:14:31 -0300 | [diff] [blame] | 84 | * @driver_type: specifies if protocol decoding is done in hardware or software |
David Härdeman | d8b4b58 | 2010-10-29 16:08:23 -0300 | [diff] [blame] | 85 | * @idle: used to keep track of RX state |
David Härdeman | c5540fb | 2014-04-03 20:32:21 -0300 | [diff] [blame] | 86 | * @allowed_protocols: bitmask with the supported RC_BIT_* protocols |
| 87 | * @enabled_protocols: bitmask with the enabled RC_BIT_* protocols |
| 88 | * @allowed_wakeup_protocols: bitmask with the supported RC_BIT_* wakeup protocols |
| 89 | * @enabled_wakeup_protocols: bitmask with the enabled RC_BIT_* wakeup protocols |
| 90 | * @scancode_filter: scancode filter |
| 91 | * @scancode_wakeup_filter: scancode wakeup filters |
David Härdeman | 9d2f1d3 | 2014-04-03 20:32:26 -0300 | [diff] [blame] | 92 | * @scancode_mask: some hardware decoders are not capable of providing the full |
Mauro Carvalho Chehab | 9dfe4e8 | 2010-04-04 14:06:55 -0300 | [diff] [blame] | 93 | * scancode to the application. As this is a hardware limit, we can't do |
| 94 | * anything with it. Yet, as the same keycode table can be used with other |
| 95 | * devices, a mask is provided to allow its usage. Drivers should generally |
| 96 | * leave this field in blank |
David Härdeman | 9d2f1d3 | 2014-04-03 20:32:26 -0300 | [diff] [blame] | 97 | * @users: number of current users of the device |
David Härdeman | d8b4b58 | 2010-10-29 16:08:23 -0300 | [diff] [blame] | 98 | * @priv: driver-specific data |
| 99 | * @keylock: protects the remaining members of the struct |
| 100 | * @keypressed: whether a key is currently pressed |
| 101 | * @keyup_jiffies: time (in jiffies) when the current keypress should be released |
| 102 | * @timer_keyup: timer for releasing a keypress |
| 103 | * @last_keycode: keycode of last keypress |
David Härdeman | 120703f | 2014-04-03 20:31:30 -0300 | [diff] [blame] | 104 | * @last_protocol: protocol of last keypress |
David Härdeman | d8b4b58 | 2010-10-29 16:08:23 -0300 | [diff] [blame] | 105 | * @last_scancode: scancode of last keypress |
| 106 | * @last_toggle: toggle value of last command |
Maxim Levitsky | 4a702eb | 2010-07-31 11:59:22 -0300 | [diff] [blame] | 107 | * @timeout: optional time after which device stops sending data |
| 108 | * @min_timeout: minimum timeout supported by device |
| 109 | * @max_timeout: maximum timeout supported by device |
Maxim Levitsky | e589333 | 2010-07-31 11:59:23 -0300 | [diff] [blame] | 110 | * @rx_resolution : resolution (in ns) of input sampler |
| 111 | * @tx_resolution: resolution (in ns) of output sampler |
Mauro Carvalho Chehab | 9dfe4e8 | 2010-04-04 14:06:55 -0300 | [diff] [blame] | 112 | * @change_protocol: allow changing the protocol used on hardware decoders |
James Hogan | ab88c66 | 2014-02-28 20:17:05 -0300 | [diff] [blame] | 113 | * @change_wakeup_protocol: allow changing the protocol used for wakeup |
| 114 | * filtering |
Mauro Carvalho Chehab | 9dfe4e8 | 2010-04-04 14:06:55 -0300 | [diff] [blame] | 115 | * @open: callback to allow drivers to enable polling/irq when IR input device |
| 116 | * is opened. |
| 117 | * @close: callback to allow drivers to disable polling/irq when IR input device |
| 118 | * is opened. |
Jarod Wilson | 9b7c54d | 2010-06-16 17:55:25 -0300 | [diff] [blame] | 119 | * @s_tx_mask: set transmitter mask (for devices with multiple tx outputs) |
| 120 | * @s_tx_carrier: set transmit carrier frequency |
Maxim Levitsky | e589333 | 2010-07-31 11:59:23 -0300 | [diff] [blame] | 121 | * @s_tx_duty_cycle: set transmit duty cycle (0% - 100%) |
Mauro Carvalho Chehab | fa81084 | 2015-08-22 05:25:45 -0300 | [diff] [blame] | 122 | * @s_rx_carrier_range: inform driver about carrier it is expected to handle |
Jarod Wilson | 9b7c54d | 2010-06-16 17:55:25 -0300 | [diff] [blame] | 123 | * @tx_ir: transmit IR |
David Härdeman | d8b4b58 | 2010-10-29 16:08:23 -0300 | [diff] [blame] | 124 | * @s_idle: enable/disable hardware idle mode, upon which, |
| 125 | * device doesn't interrupt host until it sees IR pulses |
Maxim Levitsky | e589333 | 2010-07-31 11:59:23 -0300 | [diff] [blame] | 126 | * @s_learning_mode: enable wide band receiver used for learning |
Maxim Levitsky | 4651918 | 2010-10-16 19:56:28 -0300 | [diff] [blame] | 127 | * @s_carrier_report: enable carrier reports |
David Härdeman | 120703f | 2014-04-03 20:31:30 -0300 | [diff] [blame] | 128 | * @s_filter: set the scancode filter |
David Härdeman | 23c843b | 2014-04-04 19:06:01 -0300 | [diff] [blame] | 129 | * @s_wakeup_filter: set the wakeup scancode filter |
Sean Young | 4f253ce | 2016-07-10 13:34:38 -0300 | [diff] [blame] | 130 | * @s_timeout: set hardware timeout in ns |
Mauro Carvalho Chehab | 9dfe4e8 | 2010-04-04 14:06:55 -0300 | [diff] [blame] | 131 | */ |
David Härdeman | d8b4b58 | 2010-10-29 16:08:23 -0300 | [diff] [blame] | 132 | struct rc_dev { |
| 133 | struct device dev; |
Mauro Carvalho Chehab | 078600f | 2016-03-02 08:00:15 -0300 | [diff] [blame] | 134 | atomic_t initialized; |
Heiner Kallweit | ddbf7d5 | 2016-09-30 17:42:07 -0300 | [diff] [blame] | 135 | bool managed_alloc; |
David Härdeman | 99b0f3c | 2014-04-04 19:06:06 -0300 | [diff] [blame] | 136 | const struct attribute_group *sysfs_groups[5]; |
David Härdeman | d8b4b58 | 2010-10-29 16:08:23 -0300 | [diff] [blame] | 137 | const char *input_name; |
| 138 | const char *input_phys; |
| 139 | struct input_id input_id; |
| 140 | char *driver_name; |
| 141 | const char *map_name; |
Jarod Wilson | 08aeb7c | 2011-05-11 15:14:31 -0300 | [diff] [blame] | 142 | struct rc_map rc_map; |
| 143 | struct mutex lock; |
David Härdeman | fcb1309 | 2015-05-19 19:03:17 -0300 | [diff] [blame] | 144 | unsigned int minor; |
David Härdeman | d8b4b58 | 2010-10-29 16:08:23 -0300 | [diff] [blame] | 145 | struct ir_raw_event_ctrl *raw; |
| 146 | struct input_dev *input_dev; |
| 147 | enum rc_driver_type driver_type; |
Maxim Levitsky | 4a702eb | 2010-07-31 11:59:22 -0300 | [diff] [blame] | 148 | bool idle; |
David Härdeman | c5540fb | 2014-04-03 20:32:21 -0300 | [diff] [blame] | 149 | u64 allowed_protocols; |
| 150 | u64 enabled_protocols; |
| 151 | u64 allowed_wakeup_protocols; |
| 152 | u64 enabled_wakeup_protocols; |
| 153 | struct rc_scancode_filter scancode_filter; |
| 154 | struct rc_scancode_filter scancode_wakeup_filter; |
David Härdeman | 9d2f1d3 | 2014-04-03 20:32:26 -0300 | [diff] [blame] | 155 | u32 scancode_mask; |
Srinivas Kandagatla | 8b2ff32 | 2013-07-22 04:22:57 -0300 | [diff] [blame] | 156 | u32 users; |
David Härdeman | d8b4b58 | 2010-10-29 16:08:23 -0300 | [diff] [blame] | 157 | void *priv; |
| 158 | spinlock_t keylock; |
| 159 | bool keypressed; |
| 160 | unsigned long keyup_jiffies; |
| 161 | struct timer_list timer_keyup; |
| 162 | u32 last_keycode; |
David Härdeman | 120703f | 2014-04-03 20:31:30 -0300 | [diff] [blame] | 163 | enum rc_type last_protocol; |
David Härdeman | d8b4b58 | 2010-10-29 16:08:23 -0300 | [diff] [blame] | 164 | u32 last_scancode; |
| 165 | u8 last_toggle; |
| 166 | u32 timeout; |
| 167 | u32 min_timeout; |
| 168 | u32 max_timeout; |
| 169 | u32 rx_resolution; |
| 170 | u32 tx_resolution; |
David Härdeman | c003ab1 | 2012-10-11 19:11:54 -0300 | [diff] [blame] | 171 | int (*change_protocol)(struct rc_dev *dev, u64 *rc_type); |
James Hogan | ab88c66 | 2014-02-28 20:17:05 -0300 | [diff] [blame] | 172 | int (*change_wakeup_protocol)(struct rc_dev *dev, u64 *rc_type); |
David Härdeman | d8b4b58 | 2010-10-29 16:08:23 -0300 | [diff] [blame] | 173 | int (*open)(struct rc_dev *dev); |
| 174 | void (*close)(struct rc_dev *dev); |
| 175 | int (*s_tx_mask)(struct rc_dev *dev, u32 mask); |
| 176 | int (*s_tx_carrier)(struct rc_dev *dev, u32 carrier); |
| 177 | int (*s_tx_duty_cycle)(struct rc_dev *dev, u32 duty_cycle); |
| 178 | int (*s_rx_carrier_range)(struct rc_dev *dev, u32 min, u32 max); |
David Härdeman | 5588dc2 | 2011-04-28 12:13:58 -0300 | [diff] [blame] | 179 | int (*tx_ir)(struct rc_dev *dev, unsigned *txbuf, unsigned n); |
David Härdeman | d8b4b58 | 2010-10-29 16:08:23 -0300 | [diff] [blame] | 180 | void (*s_idle)(struct rc_dev *dev, bool enable); |
| 181 | int (*s_learning_mode)(struct rc_dev *dev, int enable); |
| 182 | int (*s_carrier_report) (struct rc_dev *dev, int enable); |
James Hogan | 00942d1 | 2014-01-17 10:58:49 -0300 | [diff] [blame] | 183 | int (*s_filter)(struct rc_dev *dev, |
James Hogan | 00942d1 | 2014-01-17 10:58:49 -0300 | [diff] [blame] | 184 | struct rc_scancode_filter *filter); |
David Härdeman | 23c843b | 2014-04-04 19:06:01 -0300 | [diff] [blame] | 185 | int (*s_wakeup_filter)(struct rc_dev *dev, |
| 186 | struct rc_scancode_filter *filter); |
Sean Young | 4f253ce | 2016-07-10 13:34:38 -0300 | [diff] [blame] | 187 | int (*s_timeout)(struct rc_dev *dev, |
| 188 | unsigned int timeout); |
Mauro Carvalho Chehab | 75543cc | 2009-12-11 09:44:23 -0300 | [diff] [blame] | 189 | }; |
Mauro Carvalho Chehab | a3572c3 | 2010-03-20 20:59:44 -0300 | [diff] [blame] | 190 | |
Mauro Carvalho Chehab | ca86674 | 2010-11-17 13:53:11 -0300 | [diff] [blame] | 191 | #define to_rc_dev(d) container_of(d, struct rc_dev, dev) |
| 192 | |
| 193 | /* |
| 194 | * From rc-main.c |
| 195 | * Those functions can be used on any type of Remote Controller. They |
| 196 | * basically creates an input_dev and properly reports the device as a |
| 197 | * Remote Controller, at sys/class/rc. |
| 198 | */ |
| 199 | |
Mauro Carvalho Chehab | 5b6137dc | 2016-07-17 09:16:57 -0300 | [diff] [blame] | 200 | /** |
| 201 | * rc_allocate_device - Allocates a RC device |
| 202 | * |
| 203 | * returns a pointer to struct rc_dev. |
| 204 | */ |
Mauro Carvalho Chehab | ca86674 | 2010-11-17 13:53:11 -0300 | [diff] [blame] | 205 | struct rc_dev *rc_allocate_device(void); |
Mauro Carvalho Chehab | 5b6137dc | 2016-07-17 09:16:57 -0300 | [diff] [blame] | 206 | |
| 207 | /** |
Heiner Kallweit | ddbf7d5 | 2016-09-30 17:42:07 -0300 | [diff] [blame] | 208 | * devm_rc_allocate_device - Managed RC device allocation |
| 209 | * |
| 210 | * @dev: pointer to struct device |
| 211 | * returns a pointer to struct rc_dev. |
| 212 | */ |
| 213 | struct rc_dev *devm_rc_allocate_device(struct device *dev); |
| 214 | |
| 215 | /** |
Mauro Carvalho Chehab | 5b6137dc | 2016-07-17 09:16:57 -0300 | [diff] [blame] | 216 | * rc_free_device - Frees a RC device |
| 217 | * |
| 218 | * @dev: pointer to struct rc_dev. |
| 219 | */ |
Mauro Carvalho Chehab | ca86674 | 2010-11-17 13:53:11 -0300 | [diff] [blame] | 220 | void rc_free_device(struct rc_dev *dev); |
Mauro Carvalho Chehab | 5b6137dc | 2016-07-17 09:16:57 -0300 | [diff] [blame] | 221 | |
| 222 | /** |
| 223 | * rc_register_device - Registers a RC device |
| 224 | * |
| 225 | * @dev: pointer to struct rc_dev. |
| 226 | */ |
Mauro Carvalho Chehab | ca86674 | 2010-11-17 13:53:11 -0300 | [diff] [blame] | 227 | int rc_register_device(struct rc_dev *dev); |
Mauro Carvalho Chehab | 5b6137dc | 2016-07-17 09:16:57 -0300 | [diff] [blame] | 228 | |
| 229 | /** |
Heiner Kallweit | ddbf7d5 | 2016-09-30 17:42:07 -0300 | [diff] [blame] | 230 | * devm_rc_register_device - Manageded registering of a RC device |
| 231 | * |
| 232 | * @parent: pointer to struct device. |
| 233 | * @dev: pointer to struct rc_dev. |
| 234 | */ |
| 235 | int devm_rc_register_device(struct device *parent, struct rc_dev *dev); |
| 236 | |
| 237 | /** |
Mauro Carvalho Chehab | 5b6137dc | 2016-07-17 09:16:57 -0300 | [diff] [blame] | 238 | * rc_unregister_device - Unregisters a RC device |
| 239 | * |
| 240 | * @dev: pointer to struct rc_dev. |
| 241 | */ |
Mauro Carvalho Chehab | ca86674 | 2010-11-17 13:53:11 -0300 | [diff] [blame] | 242 | void rc_unregister_device(struct rc_dev *dev); |
| 243 | |
Mauro Carvalho Chehab | 5b6137dc | 2016-07-17 09:16:57 -0300 | [diff] [blame] | 244 | /** |
| 245 | * rc_open - Opens a RC device |
| 246 | * |
| 247 | * @rdev: pointer to struct rc_dev. |
| 248 | */ |
Srinivas Kandagatla | 8b2ff32 | 2013-07-22 04:22:57 -0300 | [diff] [blame] | 249 | int rc_open(struct rc_dev *rdev); |
Mauro Carvalho Chehab | 5b6137dc | 2016-07-17 09:16:57 -0300 | [diff] [blame] | 250 | |
| 251 | /** |
Mauro Carvalho Chehab | e383ce0 | 2016-09-22 07:59:03 -0300 | [diff] [blame] | 252 | * rc_close - Closes a RC device |
Mauro Carvalho Chehab | 5b6137dc | 2016-07-17 09:16:57 -0300 | [diff] [blame] | 253 | * |
| 254 | * @rdev: pointer to struct rc_dev. |
| 255 | */ |
Srinivas Kandagatla | 8b2ff32 | 2013-07-22 04:22:57 -0300 | [diff] [blame] | 256 | void rc_close(struct rc_dev *rdev); |
| 257 | |
Mauro Carvalho Chehab | ca86674 | 2010-11-17 13:53:11 -0300 | [diff] [blame] | 258 | void rc_repeat(struct rc_dev *dev); |
David Härdeman | 120703f | 2014-04-03 20:31:30 -0300 | [diff] [blame] | 259 | void rc_keydown(struct rc_dev *dev, enum rc_type protocol, u32 scancode, u8 toggle); |
| 260 | void rc_keydown_notimeout(struct rc_dev *dev, enum rc_type protocol, u32 scancode, u8 toggle); |
Mauro Carvalho Chehab | ca86674 | 2010-11-17 13:53:11 -0300 | [diff] [blame] | 261 | void rc_keyup(struct rc_dev *dev); |
| 262 | u32 rc_g_keycode_from_table(struct rc_dev *dev, u32 scancode); |
| 263 | |
| 264 | /* |
| 265 | * From rc-raw.c |
| 266 | * The Raw interface is specific to InfraRed. It may be a good idea to |
| 267 | * split it later into a separate header. |
| 268 | */ |
| 269 | |
Mauro Carvalho Chehab | 3f113e3 | 2010-04-08 15:10:27 -0300 | [diff] [blame] | 270 | enum raw_event_type { |
| 271 | IR_SPACE = (1 << 0), |
| 272 | IR_PULSE = (1 << 1), |
| 273 | IR_START_EVENT = (1 << 2), |
| 274 | IR_STOP_EVENT = (1 << 3), |
Mauro Carvalho Chehab | 995187b | 2010-03-24 20:47:53 -0300 | [diff] [blame] | 275 | }; |
| 276 | |
David Härdeman | e40b112 | 2010-04-15 18:46:00 -0300 | [diff] [blame] | 277 | struct ir_raw_event { |
Maxim Levitsky | 4651918 | 2010-10-16 19:56:28 -0300 | [diff] [blame] | 278 | union { |
| 279 | u32 duration; |
Heiner Kallweit | 5f61ff8 | 2016-03-17 16:39:13 -0300 | [diff] [blame] | 280 | u32 carrier; |
Maxim Levitsky | 4651918 | 2010-10-16 19:56:28 -0300 | [diff] [blame] | 281 | }; |
Heiner Kallweit | 5f61ff8 | 2016-03-17 16:39:13 -0300 | [diff] [blame] | 282 | u8 duty_cycle; |
Maxim Levitsky | 4651918 | 2010-10-16 19:56:28 -0300 | [diff] [blame] | 283 | |
| 284 | unsigned pulse:1; |
| 285 | unsigned reset:1; |
| 286 | unsigned timeout:1; |
| 287 | unsigned carrier_report:1; |
David Härdeman | e40b112 | 2010-04-15 18:46:00 -0300 | [diff] [blame] | 288 | }; |
Mauro Carvalho Chehab | a3572c3 | 2010-03-20 20:59:44 -0300 | [diff] [blame] | 289 | |
Heiner Kallweit | 5f61ff8 | 2016-03-17 16:39:13 -0300 | [diff] [blame] | 290 | #define DEFINE_IR_RAW_EVENT(event) struct ir_raw_event event = {} |
Maxim Levitsky | 4651918 | 2010-10-16 19:56:28 -0300 | [diff] [blame] | 291 | |
| 292 | static inline void init_ir_raw_event(struct ir_raw_event *ev) |
| 293 | { |
| 294 | memset(ev, 0, sizeof(*ev)); |
| 295 | } |
| 296 | |
Eric Nelson | c8e1bbc | 2015-10-03 08:18:50 -0700 | [diff] [blame] | 297 | #define IR_DEFAULT_TIMEOUT MS_TO_NS(125) |
Mauro Carvalho Chehab | 6b20cf3 | 2015-06-05 10:30:44 -0300 | [diff] [blame] | 298 | #define IR_MAX_DURATION 500000000 /* 500 ms */ |
Jarod Wilson | 5aad724 | 2011-01-06 16:59:36 -0300 | [diff] [blame] | 299 | #define US_TO_NS(usec) ((usec) * 1000) |
| 300 | #define MS_TO_US(msec) ((msec) * 1000) |
| 301 | #define MS_TO_NS(msec) ((msec) * 1000 * 1000) |
David Härdeman | e40b112 | 2010-04-15 18:46:00 -0300 | [diff] [blame] | 302 | |
David Härdeman | d8b4b58 | 2010-10-29 16:08:23 -0300 | [diff] [blame] | 303 | void ir_raw_event_handle(struct rc_dev *dev); |
| 304 | int ir_raw_event_store(struct rc_dev *dev, struct ir_raw_event *ev); |
| 305 | int ir_raw_event_store_edge(struct rc_dev *dev, enum raw_event_type type); |
| 306 | int ir_raw_event_store_with_filter(struct rc_dev *dev, |
| 307 | struct ir_raw_event *ev); |
| 308 | void ir_raw_event_set_idle(struct rc_dev *dev, bool idle); |
| 309 | |
| 310 | static inline void ir_raw_event_reset(struct rc_dev *dev) |
David Härdeman | e40b112 | 2010-04-15 18:46:00 -0300 | [diff] [blame] | 311 | { |
Heiner Kallweit | 5f61ff8 | 2016-03-17 16:39:13 -0300 | [diff] [blame] | 312 | struct ir_raw_event ev = { .reset = true }; |
Maxim Levitsky | 4651918 | 2010-10-16 19:56:28 -0300 | [diff] [blame] | 313 | |
David Härdeman | d8b4b58 | 2010-10-29 16:08:23 -0300 | [diff] [blame] | 314 | ir_raw_event_store(dev, &ev); |
| 315 | ir_raw_event_handle(dev); |
David Härdeman | e40b112 | 2010-04-15 18:46:00 -0300 | [diff] [blame] | 316 | } |
David Härdeman | 724e249 | 2010-04-08 13:10:00 -0300 | [diff] [blame] | 317 | |
David Härdeman | 3ffea49 | 2010-10-29 16:08:12 -0300 | [diff] [blame] | 318 | /* extract mask bits out of data and pack them into the result */ |
| 319 | static inline u32 ir_extract_bits(u32 data, u32 mask) |
| 320 | { |
| 321 | u32 vbit = 1, value = 0; |
| 322 | |
| 323 | do { |
David Härdeman | 829ba9f | 2010-11-19 20:43:27 -0300 | [diff] [blame] | 324 | if (mask & 1) { |
| 325 | if (data & 1) |
| 326 | value |= vbit; |
| 327 | vbit <<= 1; |
| 328 | } |
| 329 | data >>= 1; |
David Härdeman | 3ffea49 | 2010-10-29 16:08:12 -0300 | [diff] [blame] | 330 | } while (mask >>= 1); |
| 331 | |
| 332 | return value; |
| 333 | } |
| 334 | |
Mauro Carvalho Chehab | ca86674 | 2010-11-17 13:53:11 -0300 | [diff] [blame] | 335 | #endif /* _RC_CORE */ |