arch/arm/mach-mt8127/pixi3_10/leds/mt65xx/cust_leds.c

   1 #include <cust_leds.h>
   2 #include <cust_leds_def.h>
   3 #include <mach/mt_pwm.h>
   4
   5 #include <linux/kernel.h>
   6 #include <mach/pmic_mt6329_hw_bank1.h>
   7 #include <mach/pmic_mt6329_sw_bank1.h>
   8 #include <mach/pmic_mt6329_hw.h>
   9 #include <mach/pmic_mt6329_sw.h>
  10 #include <mach/upmu_common_sw.h>
  11 #include <mach/upmu_hw.h>
  12
  13 extern int disp_bls_set_backlight(unsigned int level);
  14
  15 // Only support 64 levels of backlight (when lcd-backlight = MT65XX_LED_MODE_PWM)
  16 #define BACKLIGHT_LEVEL_PWM_64_FIFO_MODE_SUPPORT 64
  17 // Support 256 levels of backlight (when lcd-backlight = MT65XX_LED_MODE_PWM)
  18 #define BACKLIGHT_LEVEL_PWM_256_SUPPORT 256
  19
  20 // Configure the support type "BACKLIGHT_LEVEL_PWM_256_SUPPORT" or "BACKLIGHT_LEVEL_PWM_64_FIFO_MODE_SUPPORT" !!
  21 #define BACKLIGHT_LEVEL_PWM_MODE_CONFIG BACKLIGHT_LEVEL_PWM_256_SUPPORT
  22
  23 unsigned int Cust_GetBacklightLevelSupport_byPWM(void)
  24 {
  25         return BACKLIGHT_LEVEL_PWM_MODE_CONFIG;
  26 }
  27
  28 unsigned int brightness_mapping(unsigned int level)
  29 {
  30     unsigned int mapped_level;
  31
  32     mapped_level = level;
  33
  34         return mapped_level;
  35 }
  36 /*
  37 unsigned int Cust_SetBacklight(int level, int div)
  38 {
  39         kal_uint32 ret=0;
  40 //    mtkfb_set_backlight_pwm(div);
  41 //    mtkfb_set_backlight_level(brightness_mapping(level));
  42
  43
  44  * To explain How to set these para for cust_led_list[] of led/backlight
  45  * "name" para: led or backlight
  46  * "mode" para:which mode for led/backlight
  47  *      such as:
  48  *                      MT65XX_LED_MODE_NONE,
  49  *                      MT65XX_LED_MODE_PWM,
  50  *                      MT65XX_LED_MODE_GPIO,
  51  *                      MT65XX_LED_MODE_PMIC,
  52  *                      MT65XX_LED_MODE_CUST_LCM,
  53  *                      MT65XX_LED_MODE_CUST_BLS_PWM
  54  *
  55  *"data" para: control methord for led/backlight
  56  *   such as:
  57  *                      MT65XX_LED_PMIC_LCD_ISINK=0,
  58  *                      MT65XX_LED_PMIC_NLED_ISINK0,
  59  *                      MT65XX_LED_PMIC_NLED_ISINK1,
  60  *                      MT65XX_LED_PMIC_NLED_ISINK2,
  61  *                      MT65XX_LED_PMIC_NLED_ISINK3
  62  *
  63  *"PWM_config" para:PWM(AP side Or BLS module), by default setting{0,0,0,0,0} Or {0}
  64  *struct PWM_config {
  65  *  int clock_source;
  66  *  int div;
  67  *  int low_duration;
  68  *  int High_duration;
  69  *  BOOL pmic_pad;//AP side PWM pin in PMIC chip (only 89 needs confirm); 1:yes 0:no(default)
  70  *};
  71  *-------------------------------------------------------------------------------------------
  72  *   for AP PWM setting as follow:
  73  *1.     PWM config data
  74  *  clock_source: clock source frequency, can be 0/1
  75  *  div: clock division, can be any value within 0~7 (i.e. 1/2^(div) = /1, /2, /4, /8, /16, /32, /64, /128)
  76  *  low_duration: only for BACKLIGHT_LEVEL_PWM_64_FIFO_MODE_SUPPORT
  77  *  High_duration: only for BACKLIGHT_LEVEL_PWM_64_FIFO_MODE_SUPPORT
  78  *
  79  *2.     PWM freq.
  80  * If BACKLIGHT_LEVEL_PWM_MODE_CONFIG = BACKLIGHT_LEVEL_PWM_256_SUPPORT,
  81  *       PWM freq. = clock source / 2^(div) / 256
  82  *
  83  * If BACKLIGHT_LEVEL_PWM_MODE_CONFIG = BACKLIGHT_LEVEL_PWM_64_FIFO_MODE_SUPPORT,
  84  *       PWM freq. = clock source / 2^(div) / [(High_duration+1)(Level')+(low_duration+1)(64 - Level')]
  85  *                 = clock source / 2^(div) / [(High_duration+1)*64]     (when low_duration = High_duration)
  86  *Clock source:
  87  *       0: block clock/1625 = 26M/1625 = 16K (MT6571)
  88  *       1: block clock = 26M (MT6571)
  89  *Div: 0~7
  90  *
  91  *For example, in MT6571, PWM_config = {1,1,0,0,0}
  92  *       ==> PWM freq. = 26M/2^1/256     =      50.78 KHz ( when BACKLIGHT_LEVEL_PWM_256_SUPPORT )
  93  *       ==> PWM freq. = 26M/2^1/(0+1)*64 = 203.13 KHz ( when BACKLIGHT_LEVEL_PWM_64_FIFO_MODE_SUPPORT )
  94  *-------------------------------------------------------------------------------------------
  95  *   for BLS PWM setting as follow:
  96  *1.     PWM config data
  97  *       clock_source: clock source frequency, can be 0/1/2/3
  98  *       div: clock division, can be any value within 0~1023
  99  *       low_duration: non-use
 100  *       High_duration: non-use
 101  *       pmic_pad: non-use
 102  *
 103  *2.     PWM freq.= clock source / (div + 1) /1024
 104  *Clock source:
 105  *       0: 26 MHz
 106  *       1: 104 MHz
 107  *       2: 124.8 MHz
 108  *       3: 156 MHz
 109  *Div: 0~1023
 110  *
 111  *By default, clock_source = 0 and div = 0 => PWM freq. = 26 KHz
 112  *-------------------------------------------------------------------------------------------
 113  */
 114 static struct cust_mt65xx_led cust_led_list[MT65XX_LED_TYPE_TOTAL] = {
 115         {"red",               MT65XX_LED_MODE_PMIC, MT65XX_LED_PMIC_NLED_ISINK2,{0}},
 116         {"green",             MT65XX_LED_MODE_PMIC, MT65XX_LED_PMIC_NLED_ISINK1,{0}},
 117         {"blue",              MT65XX_LED_MODE_PMIC, MT65XX_LED_PMIC_NLED_ISINK0,{0}},
 118         {"jogball-backlight", MT65XX_LED_MODE_NONE, -1,{0}},
 119         {"keyboard-backlight",MT65XX_LED_MODE_NONE, -1,{0}},
 120         {"button-backlight",  MT65XX_LED_MODE_NONE, -1,{0}},
 121         {"lcd-backlight",     MT65XX_LED_MODE_CUST_BLS_PWM, (int)disp_bls_set_backlight,{0,0,0,0,0}},
 122 };
 123
 124 struct cust_mt65xx_led *get_cust_led_list(void)
 125 {
 126         return cust_led_list;
 127 }
 128