diff options
Diffstat (limited to 'driver/charger/rt946x.c')
| -rw-r--r-- | driver/charger/rt946x.c | 82 |
1 files changed, 80 insertions, 2 deletions
diff --git a/driver/charger/rt946x.c b/driver/charger/rt946x.c index c934d346de..d8f3065311 100644 --- a/driver/charger/rt946x.c +++ b/driver/charger/rt946x.c @@ -8,6 +8,7 @@ #include "battery.h" #include "battery_smart.h" #include "charger.h" +#include "charge_manager.h" #include "common.h" #include "compile_time_macros.h" #include "config.h" @@ -18,6 +19,7 @@ #include "rt946x.h" #include "task.h" #include "timer.h" +#include "usb_charge.h" #include "util.h" /* Console output macros */ @@ -82,7 +84,7 @@ enum rt946x_irq { static uint8_t rt946x_irqmask[RT946X_IRQ_COUNT] = { 0xF0, 0xF0, 0xFF, 0xFF, 0xFF, 0xFF, #ifdef CONFIG_CHARGER_RT9467 - 0xFF, + 0xFC, #endif }; @@ -354,8 +356,12 @@ static int rt946x_init_setting(void) if (rv) return rv; #endif - /* Disable BC12 detection */ + /* Enable/Disable BC 1.2 detection */ +#ifdef HAS_TASK_USB_CHG + rv = rt946x_enable_bc12_detection(1); +#else rv = rt946x_enable_bc12_detection(0); +#endif if (rv) return rv; /* Disable WDT */ @@ -783,6 +789,78 @@ static void rt946x_init(void) } DECLARE_HOOK(HOOK_INIT, rt946x_init, HOOK_PRIO_INIT_I2C + 1); +#ifdef HAS_TASK_USB_CHG +static int rt946x_get_bc12_device_type(void) +{ + int reg; + + if (rt946x_read8(RT946X_REG_DPDM1, ®)) + return CHARGE_SUPPLIER_NONE; + + switch (reg & RT946X_MASK_BC12_TYPE) { + case RT946X_MASK_SDP: + return CHARGE_SUPPLIER_BC12_SDP; + case RT946X_MASK_CDP: + return CHARGE_SUPPLIER_BC12_CDP; + case RT946X_MASK_DCP: + return CHARGE_SUPPLIER_BC12_DCP; + default: + return CHARGE_SUPPLIER_NONE; + } +} + +static int rt946x_get_bc12_ilim(int charge_supplier) +{ + switch (charge_supplier) { + case CHARGE_SUPPLIER_BC12_CDP: + case CHARGE_SUPPLIER_BC12_DCP: + return 1500; + case CHARGE_SUPPLIER_BC12_SDP: + default: + return USB_CHARGER_MIN_CURR_MA; + } +} + +void rt946x_interrupt(enum gpio_signal signal) +{ + task_wake(TASK_ID_USB_CHG); +} + +void usb_charger_task(void *u) +{ + struct charge_port_info charge; + int bc12_type = CHARGE_SUPPLIER_NONE; + int reg = 0; + + charge.voltage = USB_CHARGER_VOLTAGE_MV; + + while (1) { + rt946x_read8(RT946X_REG_DPDMIRQ, ®); + + /* VBUS attach event */ + if (reg & RT946X_MASK_DPDMIRQ_ATTACH) { + bc12_type = rt946x_get_bc12_device_type(); + if (bc12_type != CHARGE_SUPPLIER_NONE) { + charge.current = + rt946x_get_bc12_ilim(bc12_type); + charge_manager_update_charge(bc12_type, + 0, &charge); + rt946x_enable_bc12_detection(0); + } + } + + /* VBUS detach event */ + if (reg & RT946X_MASK_DPDMIRQ_DETACH) { + charge.current = 0; + charge_manager_update_charge(bc12_type, 0, &charge); + rt946x_enable_bc12_detection(1); + } + + task_wait_event(-1); + } +} +#endif /* HAS_TASK_USB_CHG */ + /* Non-standard interface functions */ int rt946x_enable_charger_boost(int en) |