drivers/led/Kconfig

   1 menu "LED Support"
   2
   3 config LED
   4         bool "Enable LED support"
   5         depends on DM
   6         help
   7           Many boards have LEDs which can be used to signal status or alerts.
   8           U-Boot provides a uclass API to implement this feature. LED drivers
   9           can provide access to board-specific LEDs. Use of the device tree
  10           for configuration is encouraged.
  11
  12 config LED_BLINK
  13         bool "Support LED blinking"
  14         depends on LED
  15         help
  16           Some drivers can support automatic blinking of LEDs with a given
  17           period, without needing timers or extra code to handle the timing.
  18           This option enables support for this which adds slightly to the
  19           code size.
  20
  21 config SPL_LED
  22         bool "Enable LED support in SPL"
  23         depends on SPL && SPL_DM
  24         help
  25           The LED subsystem adds a small amount of overhead to the image.
  26           If this is acceptable and you have a need to use LEDs in SPL,
  27           enable this option. You will need to enable device tree in SPL
  28           for this to work.
  29
  30 config LED_GPIO
  31         bool "LED support for GPIO-connected LEDs"
  32         depends on LED && DM_GPIO
  33         help
  34           Enable support for LEDs which are connected to GPIO lines. These
  35           GPIOs may be on the SoC or some other device which provides GPIOs.
  36           The GPIO driver must used driver model. LEDs are configured using
  37           the device tree.
  38
  39 config SPL_LED_GPIO
  40         bool "LED support for GPIO-connected LEDs in SPL"
  41         depends on SPL_LED && DM_GPIO
  42         help
  43           This option is an SPL-variant of the LED_GPIO option.
  44           See the help of LED_GPIO for details.
  45
  46 config LED_STATUS
  47         bool "Enable status LED API"
  48         help
  49           Allows common u-boot commands to use a board's leds to
  50           provide status for activities like booting and downloading files.
  51
  52 if LED_STATUS
  53
  54 # Hidden constants
  55
  56 config LED_STATUS_OFF
  57         int
  58         default 0
  59
  60 config LED_STATUS_BLINKING
  61         int
  62         default 1
  63
  64 config LED_STATUS_ON
  65         int
  66         default 2
  67
  68 # Hidden constants end
  69
  70 config LED_STATUS_GPIO
  71         bool "GPIO status LED implementation"
  72         help
  73           The status LED can be connected to a GPIO pin. In such cases, the
  74           gpio_led driver can be used as a status LED backend implementation.
  75
  76 config LED_STATUS_BOARD_SPECIFIC
  77         bool "Specific board"
  78         default y
  79         help
  80           LED support is only for a specific board.
  81
  82 comment "LEDs parameters"
  83
  84 config LED_STATUS0
  85         bool "Enable status LED 0"
  86
  87 if LED_STATUS0
  88
  89 config LED_STATUS_BIT
  90         int "identification"
  91         help
  92           CONFIG_LED_STATUS_BIT is passed into the __led_* functions to identify
  93           which LED is being acted on.  As such, the chosen value must be unique
  94           with respect to the other CONFIG_LED_STATUS_BIT's. Mapping the value
  95           to a physical LED is the responsibility of the __led_* function.
  96
  97 config LED_STATUS_STATE
  98         int "initial state"
  99         range LED_STATUS_OFF LED_STATUS_ON
 100         default LED_STATUS_OFF
 101         help
 102           Should be set one of the following:
 103           0 - off
 104           1 - blinking
 105           2 - on
 106
 107 config LED_STATUS_FREQ
 108         int "blink frequency"
 109         range 2 10
 110         default 2
 111         help
 112           The LED blink period calculated from LED_STATUS_FREQ:
 113           LED_STATUS_PERIOD = CONFIG_SYS_HZ/LED_STATUS_FREQ
 114           Values range: 2 - 10
 115
 116 endif # LED_STATUS0
 117
 118 config LED_STATUS1
 119         bool "Enable status LED 1"
 120
 121 if LED_STATUS1
 122
 123 config LED_STATUS_BIT1
 124         int "identification"
 125         help
 126           CONFIG_LED_STATUS_BIT1 is passed into the __led_* functions to
 127           identify which LED is being acted on.  As such, the chosen value must
 128           be unique with respect to the other CONFIG_LED_STATUS_BIT's. Mapping
 129           the value to a physical LED is the responsibility of the __led_*
 130           function.
 131
 132 config LED_STATUS_STATE1
 133         int "initial state"
 134         range LED_STATUS_OFF LED_STATUS_ON
 135         default LED_STATUS_OFF
 136         help
 137           Should be set one of the following:
 138           0 - off
 139           1 - blinking
 140           2 - on
 141
 142 config LED_STATUS_FREQ1
 143         int "blink frequency"
 144         range 2 10
 145         default 2
 146         help
 147           The LED blink period calculated from LED_STATUS_FREQ1:
 148           LED_STATUS_PERIOD1 = CONFIG_SYS_HZ/LED_STATUS_FREQ1
 149           Values range: 2 - 10
 150
 151 endif # LED_STATUS1
 152
 153 config LED_STATUS2
 154         bool "Enable status LED 2"
 155
 156 if LED_STATUS2
 157
 158 config LED_STATUS_BIT2
 159         int "identification"
 160         help
 161           CONFIG_LED_STATUS_BIT2 is passed into the __led_* functions to
 162           identify which LED is being acted on.  As such, the chosen value must
 163           be unique with respect to the other CONFIG_LED_STATUS_BIT's. Mapping
 164           the value to a physical LED is the responsibility of the __led_*
 165           function.
 166
 167 config LED_STATUS_STATE2
 168         int "initial state"
 169         range LED_STATUS_OFF LED_STATUS_ON
 170         default LED_STATUS_OFF
 171         help
 172           Should be set one of the following:
 173           0 - off
 174           1 - blinking
 175           2 - on
 176
 177 config LED_STATUS_FREQ2
 178         int "blink frequency"
 179         range 2 10
 180         default 2
 181         help
 182           The LED blink period calculated from LED_STATUS_FREQ2:
 183           LED_STATUS_PERIOD2 = CONFIG_SYS_HZ/LED_STATUS_FREQ2
 184           Values range: 2 - 10
 185
 186 endif # LED_STATUS2
 187
 188 config LED_STATUS3
 189         bool "Enable status LED 3"
 190
 191 if LED_STATUS3
 192
 193 config LED_STATUS_BIT3
 194         int "identification"
 195         help
 196           CONFIG_LED_STATUS_BIT3 is passed into the __led_* functions to
 197           identify which LED is being acted on.  As such, the chosen value must
 198           be unique with respect to the other CONFIG_LED_STATUS_BIT's. Mapping
 199           the value to a physical LED is the responsibility of the __led_*
 200           function.
 201
 202 config LED_STATUS_STATE3
 203         int "initial state"
 204         range LED_STATUS_OFF LED_STATUS_ON
 205         default LED_STATUS_OFF
 206         help
 207           Should be set one of the following:
 208           0 - off
 209           1 - blinking
 210           2 - on
 211
 212 config LED_STATUS_FREQ3
 213         int "blink frequency"
 214         range 2 10
 215         default 2
 216         help
 217           The LED blink period calculated from LED_STATUS_FREQ3:
 218           LED_STATUS_PERIOD3 = CONFIG_SYS_HZ/LED_STATUS_FREQ3
 219           Values range: 2 - 10
 220
 221 endif # LED_STATUS3
 222
 223 config LED_STATUS4
 224         bool "Enable status LED 4"
 225
 226 if LED_STATUS4
 227
 228 config LED_STATUS_BIT4
 229         int "identification"
 230         help
 231           CONFIG_LED_STATUS_BIT4 is passed into the __led_* functions to
 232           identify which LED is being acted on.  As such, the chosen value must
 233           be unique with respect to the other CONFIG_LED_STATUS_BIT's. Mapping
 234           the value to a physical LED is the responsibility of the __led_*
 235           function.
 236
 237 config LED_STATUS_STATE4
 238         int "initial state"
 239         range LED_STATUS_OFF LED_STATUS_ON
 240         default LED_STATUS_OFF
 241         help
 242           Should be set one of the following:
 243           0 - off
 244           1 - blinking
 245           2 - on
 246
 247 config LED_STATUS_FREQ4
 248         int "blink frequency"
 249         range 2 10
 250         default 2
 251         help
 252           The LED blink period calculated from LED_STATUS_FREQ4:
 253           LED_STATUS_PERIOD4 = CONFIG_SYS_HZ/LED_STATUS_FREQ4
 254           Values range: 2 - 10
 255
 256 endif # LED_STATUS4
 257
 258 config LED_STATUS5
 259         bool "Enable status LED 5"
 260
 261 if LED_STATUS5
 262
 263 config LED_STATUS_BIT5
 264         int "identification"
 265         help
 266           CONFIG_LED_STATUS_BIT5 is passed into the __led_* functions to
 267           identify which LED is being acted on.  As such, the chosen value must
 268           be unique with respect to the other CONFIG_LED_STATUS_BIT's. Mapping
 269           the value to a physical LED is the responsibility of the __led_*
 270           function.
 271
 272 config LED_STATUS_STATE5
 273         int "initial state"
 274         range LED_STATUS_OFF LED_STATUS_ON
 275         default LED_STATUS_OFF
 276         help
 277           Should be set one of the following:
 278           0 - off
 279           1 - blinking
 280           2 - on
 281
 282 config LED_STATUS_FREQ5
 283         int "blink frequency"
 284         range 2 10
 285         default 2
 286         help
 287           The LED blink period calculated from LED_STATUS_FREQ5:
 288           LED_STATUS_PERIOD5 = CONFIG_SYS_HZ/LED_STATUS_FREQ5
 289           Values range: 2 - 10
 290
 291 endif # LED_STATUS5
 292
 293 config LED_STATUS_BOOT_ENABLE
 294         bool "Enable BOOT LED"
 295         help
 296           Enable to turn an LED on when the board is booting.
 297
 298 if LED_STATUS_BOOT_ENABLE
 299
 300 config LED_STATUS_BOOT
 301         int "LED to light when the board is booting"
 302         help
 303           Valid enabled LED device number.
 304
 305 endif # LED_STATUS_BOOT_ENABLE
 306
 307 config LED_STATUS_RED_ENABLE
 308         bool "Enable red LED"
 309         help
 310           Enable red status LED.
 311
 312 if LED_STATUS_RED_ENABLE
 313
 314 config LED_STATUS_RED
 315         int "Red LED identification"
 316         help
 317           Valid enabled LED device number.
 318
 319 endif # LED_STATUS_RED_ENABLE
 320
 321 config LED_STATUS_YELLOW_ENABLE
 322         bool "Enable yellow LED"
 323         help
 324           Enable yellow status LED.
 325
 326 if LED_STATUS_YELLOW_ENABLE
 327
 328 config LED_STATUS_YELLOW
 329         int "Yellow LED identification"
 330         help
 331           Valid enabled LED device number.
 332
 333 endif # LED_STATUS_YELLOW_ENABLE
 334
 335 config LED_STATUS_BLUE_ENABLE
 336         bool "Enable blue LED"
 337         help
 338           Enable blue status LED.
 339
 340 if LED_STATUS_BLUE_ENABLE
 341
 342 config LED_STATUS_BLUE
 343         int "Blue LED identification"
 344         help
 345           Valid enabled LED device number.
 346
 347 endif # LED_STATUS_BLUE_ENABLE
 348
 349 config LED_STATUS_GREEN_ENABLE
 350         bool "Enable green LED"
 351         help
 352           Enable green status LED.
 353
 354 if LED_STATUS_GREEN_ENABLE
 355
 356 config LED_STATUS_GREEN
 357         int "Green LED identification"
 358         help
 359           Valid enabled LED device number (0-5).
 360
 361 endif # LED_STATUS_GREEN_ENABLE
 362
 363 config LED_STATUS_CMD
 364         bool "Enable status LED commands"
 365
 366 endif # LED_STATUS
 367
 368 endmenu