diff options
Diffstat (limited to 'driver/led/lm3509.c')
| -rw-r--r-- | driver/led/lm3509.c | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/driver/led/lm3509.c b/driver/led/lm3509.c index 58838e2bbe..4f5a911da4 100644 --- a/driver/led/lm3509.c +++ b/driver/led/lm3509.c @@ -7,6 +7,7 @@ #include "compile_time_macros.h" #include "i2c.h" +#include "keyboard_backlight.h" #include "lm3509.h" inline int lm3509_write(uint8_t reg, uint8_t val) @@ -44,7 +45,7 @@ static int brightness_to_bmain(int percent) return i - 1; } -int lm3509_power(int enable) +static int lm3509_power(int enable) { int ret = 0; uint8_t gp = 0, bmain = 0; @@ -71,7 +72,7 @@ int lm3509_power(int enable) return ret; } -int lm3509_set_brightness(int percent) +static int lm3509_set_brightness(int percent) { /* We don't need to read/mask/write BMAIN because bit6 and 7 are non * functional read only bits. @@ -79,13 +80,24 @@ int lm3509_set_brightness(int percent) return lm3509_write(LM3509_REG_BMAIN, brightness_to_bmain(percent)); } -int lm3509_get_brightness(int *percent) +static int lm3509_get_brightness(void) { int rv, val; rv = lm3509_read(LM3509_REG_BMAIN, &val); if (rv) - return rv; + return -1; val &= LM3509_BMAIN_MASK; - *percent = lm3509_brightness[val] / 10; + return lm3509_brightness[val] / 10; +} + +static int lm3509_init(void) +{ return EC_SUCCESS; } + +const struct kblight_drv kblight_lm3509 = { + .init = lm3509_init, + .set = lm3509_set_brightness, + .get = lm3509_get_brightness, + .enable = lm3509_power, +}; |