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_BCM6328
  13         bool "LED Support for BCM6328"
  14         depends on LED && ARCH_BMIPS
  15         help
  16           This option enables support for LEDs connected to the BCM6328
  17           LED HW controller accessed via MMIO registers.
  18           HW blinking is supported and up to 24 LEDs can be controlled.
  19           All LEDs can blink at the same time but the delay is shared, which
  20           means that if one LED is set to blink at 100ms and then a different
  21           LED is set to blink at 200ms, both will blink at 200ms.
  22
  23 config LED_BCM6358
  24         bool "LED Support for BCM6358"
  25         depends on LED && ARCH_BMIPS
  26         help
  27           This option enables support for LEDs connected to the BCM6358
  28           LED HW controller accessed via MMIO registers.
  29           HW has no blinking capabilities and up to 32 LEDs can be controlled.
  30
  31 config LED_BLINK
  32         bool "Support LED blinking"
  33         depends on LED
  34         help
  35           Some drivers can support automatic blinking of LEDs with a given
  36           period, without needing timers or extra code to handle the timing.
  37           This option enables support for this which adds slightly to the
  38           code size.
  39
  40 config SPL_LED
  41         bool "Enable LED support in SPL"
  42         depends on SPL && SPL_DM
  43         help
  44           The LED subsystem adds a small amount of overhead to the image.
  45           If this is acceptable and you have a need to use LEDs in SPL,
  46           enable this option. You will need to enable device tree in SPL
  47           for this to work.
  48
  49 config LED_GPIO
  50         bool "LED support for GPIO-connected LEDs"
  51         depends on LED && DM_GPIO
  52         help
  53           Enable support for LEDs which are connected to GPIO lines. These
  54           GPIOs may be on the SoC or some other device which provides GPIOs.
  55           The GPIO driver must used driver model. LEDs are configured using
  56           the device tree.
  57
  58 config SPL_LED_GPIO
  59         bool "LED support for GPIO-connected LEDs in SPL"
  60         depends on SPL_LED && DM_GPIO
  61         help
  62           This option is an SPL-variant of the LED_GPIO option.
  63           See the help of LED_GPIO for details.
  64
  65 config LED_STATUS
  66         bool "Enable status LED API"
  67         help
  68           Allows common u-boot commands to use a board's leds to
  69           provide status for activities like booting and downloading files.
  70
  71 if LED_STATUS
  72
  73 # Hidden constants
  74
  75 config LED_STATUS_OFF
  76         int
  77         default 0
  78
  79 config LED_STATUS_BLINKING
  80         int
  81         default 1
  82
  83 config LED_STATUS_ON
  84         int
  85         default 2
  86
  87 # Hidden constants end
  88
  89 config LED_STATUS_GPIO
  90         bool "GPIO status LED implementation"
  91         help
  92           The status LED can be connected to a GPIO pin. In such cases, the
  93           gpio_led driver can be used as a status LED backend implementation.
  94
  95 config LED_STATUS_BOARD_SPECIFIC
  96         bool "Specific board"
  97         default y
  98         help
  99           LED support is only for a specific board.
 100
 101 comment "LEDs parameters"
 102
 103 config LED_STATUS0
 104         bool "Enable status LED 0"
 105
 106 if LED_STATUS0
 107
 108 config LED_STATUS_BIT
 109         int "identification"
 110         help
 111           CONFIG_LED_STATUS_BIT is passed into the __led_* functions to identify
 112           which LED is being acted on.  As such, the chosen value must be unique
 113           with respect to the other CONFIG_LED_STATUS_BIT's. Mapping the value
 114           to a physical LED is the responsibility of the __led_* function.
 115
 116 config LED_STATUS_STATE
 117         int "initial state"
 118         range LED_STATUS_OFF LED_STATUS_ON
 119         default LED_STATUS_OFF
 120         help
 121           Should be set one of the following:
 122           0 - off
 123           1 - blinking
 124           2 - on
 125
 126 config LED_STATUS_FREQ
 127         int "blink frequency"
 128         range 2 10
 129         default 2
 130         help
 131           The LED blink period calculated from LED_STATUS_FREQ:
 132           LED_STATUS_PERIOD = CONFIG_SYS_HZ/LED_STATUS_FREQ
 133           Values range: 2 - 10
 134
 135 endif # LED_STATUS0
 136
 137 config LED_STATUS1
 138         bool "Enable status LED 1"
 139
 140 if LED_STATUS1
 141
 142 config LED_STATUS_BIT1
 143         int "identification"
 144         help
 145           CONFIG_LED_STATUS_BIT1 is passed into the __led_* functions to
 146           identify which LED is being acted on.  As such, the chosen value must
 147           be unique with respect to the other CONFIG_LED_STATUS_BIT's. Mapping
 148           the value to a physical LED is the responsibility of the __led_*
 149           function.
 150
 151 config LED_STATUS_STATE1
 152         int "initial state"
 153         range LED_STATUS_OFF LED_STATUS_ON
 154         default LED_STATUS_OFF
 155         help
 156           Should be set one of the following:
 157           0 - off
 158           1 - blinking
 159           2 - on
 160
 161 config LED_STATUS_FREQ1
 162         int "blink frequency"
 163         range 2 10
 164         default 2
 165         help
 166           The LED blink period calculated from LED_STATUS_FREQ1:
 167           LED_STATUS_PERIOD1 = CONFIG_SYS_HZ/LED_STATUS_FREQ1
 168           Values range: 2 - 10
 169
 170 endif # LED_STATUS1
 171
 172 config LED_STATUS2
 173         bool "Enable status LED 2"
 174
 175 if LED_STATUS2
 176
 177 config LED_STATUS_BIT2
 178         int "identification"
 179         help
 180           CONFIG_LED_STATUS_BIT2 is passed into the __led_* functions to
 181           identify which LED is being acted on.  As such, the chosen value must
 182           be unique with respect to the other CONFIG_LED_STATUS_BIT's. Mapping
 183           the value to a physical LED is the responsibility of the __led_*
 184           function.
 185
 186 config LED_STATUS_STATE2
 187         int "initial state"
 188         range LED_STATUS_OFF LED_STATUS_ON
 189         default LED_STATUS_OFF
 190         help
 191           Should be set one of the following:
 192           0 - off
 193           1 - blinking
 194           2 - on
 195
 196 config LED_STATUS_FREQ2
 197         int "blink frequency"
 198         range 2 10
 199         default 2
 200         help
 201           The LED blink period calculated from LED_STATUS_FREQ2:
 202           LED_STATUS_PERIOD2 = CONFIG_SYS_HZ/LED_STATUS_FREQ2
 203           Values range: 2 - 10
 204
 205 endif # LED_STATUS2
 206
 207 config LED_STATUS3
 208         bool "Enable status LED 3"
 209
 210 if LED_STATUS3
 211
 212 config LED_STATUS_BIT3
 213         int "identification"
 214         help
 215           CONFIG_LED_STATUS_BIT3 is passed into the __led_* functions to
 216           identify which LED is being acted on.  As such, the chosen value must
 217           be unique with respect to the other CONFIG_LED_STATUS_BIT's. Mapping
 218           the value to a physical LED is the responsibility of the __led_*
 219           function.
 220
 221 config LED_STATUS_STATE3
 222         int "initial state"
 223         range LED_STATUS_OFF LED_STATUS_ON
 224         default LED_STATUS_OFF
 225         help
 226           Should be set one of the following:
 227           0 - off
 228           1 - blinking
 229           2 - on
 230
 231 config LED_STATUS_FREQ3
 232         int "blink frequency"
 233         range 2 10
 234         default 2
 235         help
 236           The LED blink period calculated from LED_STATUS_FREQ3:
 237           LED_STATUS_PERIOD3 = CONFIG_SYS_HZ/LED_STATUS_FREQ3
 238           Values range: 2 - 10
 239
 240 endif # LED_STATUS3
 241
 242 config LED_STATUS4
 243         bool "Enable status LED 4"
 244
 245 if LED_STATUS4
 246
 247 config LED_STATUS_BIT4
 248         int "identification"
 249         help
 250           CONFIG_LED_STATUS_BIT4 is passed into the __led_* functions to
 251           identify which LED is being acted on.  As such, the chosen value must
 252           be unique with respect to the other CONFIG_LED_STATUS_BIT's. Mapping
 253           the value to a physical LED is the responsibility of the __led_*
 254           function.
 255
 256 config LED_STATUS_STATE4
 257         int "initial state"
 258         range LED_STATUS_OFF LED_STATUS_ON
 259         default LED_STATUS_OFF
 260         help
 261           Should be set one of the following:
 262           0 - off
 263           1 - blinking
 264           2 - on
 265
 266 config LED_STATUS_FREQ4
 267         int "blink frequency"
 268         range 2 10
 269         default 2
 270         help
 271           The LED blink period calculated from LED_STATUS_FREQ4:
 272           LED_STATUS_PERIOD4 = CONFIG_SYS_HZ/LED_STATUS_FREQ4
 273           Values range: 2 - 10
 274
 275 endif # LED_STATUS4
 276
 277 config LED_STATUS5
 278         bool "Enable status LED 5"
 279
 280 if LED_STATUS5
 281
 282 config LED_STATUS_BIT5
 283         int "identification"
 284         help
 285           CONFIG_LED_STATUS_BIT5 is passed into the __led_* functions to
 286           identify which LED is being acted on.  As such, the chosen value must
 287           be unique with respect to the other CONFIG_LED_STATUS_BIT's. Mapping
 288           the value to a physical LED is the responsibility of the __led_*
 289           function.
 290
 291 config LED_STATUS_STATE5
 292         int "initial state"
 293         range LED_STATUS_OFF LED_STATUS_ON
 294         default LED_STATUS_OFF
 295         help
 296           Should be set one of the following:
 297           0 - off
 298           1 - blinking
 299           2 - on
 300
 301 config LED_STATUS_FREQ5
 302         int "blink frequency"
 303         range 2 10
 304         default 2
 305         help
 306           The LED blink period calculated from LED_STATUS_FREQ5:
 307           LED_STATUS_PERIOD5 = CONFIG_SYS_HZ/LED_STATUS_FREQ5
 308           Values range: 2 - 10
 309
 310 endif # LED_STATUS5
 311
 312 config LED_STATUS_BOOT_ENABLE
 313         bool "Enable BOOT LED"
 314         help
 315           Enable to turn an LED on when the board is booting.
 316
 317 if LED_STATUS_BOOT_ENABLE
 318
 319 config LED_STATUS_BOOT
 320         int "LED to light when the board is booting"
 321         help
 322           Valid enabled LED device number.
 323
 324 endif # LED_STATUS_BOOT_ENABLE
 325
 326 config LED_STATUS_RED_ENABLE
 327         bool "Enable red LED"
 328         help
 329           Enable red status LED.
 330
 331 if LED_STATUS_RED_ENABLE
 332
 333 config LED_STATUS_RED
 334         int "Red LED identification"
 335         help
 336           Valid enabled LED device number.
 337
 338 endif # LED_STATUS_RED_ENABLE
 339
 340 config LED_STATUS_YELLOW_ENABLE
 341         bool "Enable yellow LED"
 342         help
 343           Enable yellow status LED.
 344
 345 if LED_STATUS_YELLOW_ENABLE
 346
 347 config LED_STATUS_YELLOW
 348         int "Yellow LED identification"
 349         help
 350           Valid enabled LED device number.
 351
 352 endif # LED_STATUS_YELLOW_ENABLE
 353
 354 config LED_STATUS_BLUE_ENABLE
 355         bool "Enable blue LED"
 356         help
 357           Enable blue status LED.
 358
 359 if LED_STATUS_BLUE_ENABLE
 360
 361 config LED_STATUS_BLUE
 362         int "Blue LED identification"
 363         help
 364           Valid enabled LED device number.
 365
 366 endif # LED_STATUS_BLUE_ENABLE
 367
 368 config LED_STATUS_GREEN_ENABLE
 369         bool "Enable green LED"
 370         help
 371           Enable green status LED.
 372
 373 if LED_STATUS_GREEN_ENABLE
 374
 375 config LED_STATUS_GREEN
 376         int "Green LED identification"
 377         help
 378           Valid enabled LED device number (0-5).
 379
 380 endif # LED_STATUS_GREEN_ENABLE
 381
 382 config LED_STATUS_CMD
 383         bool "Enable status LED commands"
 384
 385 endif # LED_STATUS
 386
 387 endmenu