1 files changed, 335 insertions, 0 deletions
diff --git a/firmware/e300/rev_b/bq24190.c b/firmware/e300/rev_b/bq24190.c
new file mode 100644
index 000000000..029beacf6
--- /dev/null
+++ b/firmware/e300/rev_b/bq24190.c
@@ -0,0 +1,335 @@
+/*
+ * bq24190.c
+ *
+ * Created: 11/12/2012 4:58:12 PM
+ *  Author: Balint Seeber
+ */
+
+#ifdef CHARGER_TI
+
+#include "config.h"
+#include "bq24190.h"
+
+#include <util/delay.h>
+
+#include "io.h"
+#include "i2c.h"
+#include "debug.h"
+#include "global.h"
+#include "error.h"
+
+#ifndef I2C_REWORK
+#include "power.h"
+#endif // I2C_REWORK
+
+static io_pin_t USBPM_IRQ	= IO_PB(1);
+
+#ifdef ATTINY88_DIP
+
+static io_pin_t CHRG_SDA     = IO_PC(2);
+static io_pin_t CHRG_SCL     = IO_PC(3);
+
+#else
+
+#ifdef I2C_REWORK
+
+static io_pin_t CHRG_SDA     = IO_PC(4);
+static io_pin_t CHRG_SCL     = IO_PC(5);
+
+#else
+
+#define CHRG_SDA	PWR_SDA
+#define CHRG_SCL	PWR_SCL
+
+#endif // I2C_REWORK
+
+#endif // ATTINY88_DIP
+
+const bool _bq24190_pull_up = false;
+
+#define BQ24190_BASE_ADDRESS    (0x6B << 1)
+#define BQ24190_WRITE_ADDRESS   (BQ24190_BASE_ADDRESS + 0)
+#define BQ24190_READ_ADDRESS    (BQ24190_BASE_ADDRESS + 1)
+
+enum BQ24190Registers
+{
+	BQ24190_REG_INPUT_SOURCE_CTL= 0,
+	BQ24190_REG_PWR_ON_CONFIG	= 1,
+	BQ24190_REG_CHARGE_CURRENT	= 2,
+	BQ24190_REG_PRE_TERM_CURRENT= 3,
+	BQ24190_REG_CHARGE_VOLTAGE	= 4,
+	BQ24190_REG_TIMER_CONTROL	= 5,
+	BQ24190_REG_SYSTEM_STATUS	= 8,
+	BQ24190_REG_FAULT			= 9
+};
+/*
+enum BQ24190TimerControl
+{
+	
+};
+*/
+enum BQ24190Shifts
+{
+	BQ24190_SHIFTS_CHARGER_CONFIG	= 4,
+	BQ24190_SHIFTS_I2C_WATCHDOG		= 4,
+	BQ24190_SHIFTS_CHARGER_STATUS	= 4,
+	BQ24190_SHIFTS_CHARGER_FAULT	= 4,
+};
+
+enum BQ24190VBusStatus
+{
+	BQ24190_VBUS_UNKNOWN,
+	BQ24190_VBUS_USB,
+	BQ24190_VBUS_ADAPTER,
+	BQ24190_VBUS_OTG
+};
+
+enum BQ24190ChargerStatus
+{
+	BQ24190_CHRG_STAT_NOT_CHARGING,
+	BQ24190_CHRG_STAT_PRE_CHARGE,
+	BQ24190_CHRG_STAT_FAST_CHARGING,
+	BQ24190_CHRG_STAT_CHARGE_TERMINATION_DONE,
+	BQ24190_CHRG_STAT_MASK = BQ24190_CHRG_STAT_CHARGE_TERMINATION_DONE
+};
+
+enum BQ24190SystemStatus
+{
+	BQ24190_STATUS_DPM					= 0x08,
+	BQ24190_STATUS_POWER_GOOD			= 0x04,
+	BQ24190_STATUS_THERMAL_REGULATION	= 0x02,
+	BQ24190_STATUS_VSYSMIN_REGULATION	= 0x01
+};
+
+enum BQ24190Faults
+{
+	BQ24190_FAULT_WATCHDOG_EXPIRED	= 0x80,
+	BQ24190_FAULT_VBUS_OVERLOADED	= 0x40,
+	BQ24190_FAULT_BATOVP			= 0x08
+};
+
+enum BQ24190ChargerFaults
+{
+	BQ24190_CHRGFAULT_NORMAL,
+	BQ24190_CHRGFAULT_INPUT,
+	BQ24190_CHRGFAULT_THERMAL,
+	BQ24190_CHRGFAULT_SAFETY_TIMER
+};
+
+enum BQ24190NTCFaults
+{
+	BQ24190_NTCFAULT_NORMAL,
+	BQ24190_NTCFAULT_TS1_COLD,
+	BQ24190_NTCFAULT_TS1_HOT,
+	BQ24190_NTCFAULT_TS2_COLD,
+	BQ24190_NTCFAULT_TS2_HOT,
+	BQ24190_NTCFAULT_BOTH_COLD,
+	BQ24190_NTCFAULT_BOTH_HOT
+};
+
+bool bq24190_toggle_charger(bool on)
+{
+	uint8_t config = 0;
+	if (i2c_read2_ex(CHRG_SDA, CHRG_SCL, BQ24190_READ_ADDRESS, BQ24190_REG_PWR_ON_CONFIG, &config, _bq24190_pull_up) == false)
+		return false;
+	
+	debug_log_ex("BQPC ", false);
+	debug_log_hex(config);
+	
+	config &= ~(0x3 << BQ24190_SHIFTS_CHARGER_CONFIG);
+	if (on)
+		config |= (0x01 << BQ24190_SHIFTS_CHARGER_CONFIG);	// Enable charger
+	
+	if (i2c_write_ex(CHRG_SDA, CHRG_SCL, BQ24190_WRITE_ADDRESS, BQ24190_REG_PWR_ON_CONFIG, config, _bq24190_pull_up) == false)
+		return false;
+	
+	////////
+/*
+	if (i2c_read2_ex(CHRG_SDA, CHRG_SCL, BQ24190_READ_ADDRESS, BQ24190_REG_PWR_ON_CONFIG, &config, _bq24190_pull_up) == false)
+		return false;
+	
+	debug_log_ex("BQPC ", false);
+	debug_log_hex(config);
+*/
+	////////
+	
+	return true;
+}
+
+bool bq24190_init(bool disable_charger)
+{
+#ifdef I2C_REWORK
+	i2c_init_ex(CHRG_SDA, CHRG_SCL, _bq24190_pull_up);
+#endif // I2C_REWORK
+	io_input_pin(USBPM_IRQ);
+#if !defined(DEBUG) && !defined(ATTINY88_DIP)
+	//io_set_pin(USBPM_IRQ);	// [Enable pull-up for Open Drain] AVR pull-up not enough
+#endif // DEBUG
+	if (disable_charger)
+	{
+		if (bq24190_toggle_charger(false) == false)
+			return false;
+	}
+	
+	///////////////////////////////////
+	
+	uint8_t timer_control = 0;
+	if (i2c_read2_ex(CHRG_SDA, CHRG_SCL, BQ24190_READ_ADDRESS, BQ24190_REG_TIMER_CONTROL, &timer_control, _bq24190_pull_up) == false)
+		return false;
+	
+	debug_log_ex("BQTC ", false);
+	debug_log_hex(timer_control);
+	
+	timer_control &= ~(0x3 << BQ24190_SHIFTS_I2C_WATCHDOG);
+	timer_control |= (0x00 << BQ24190_SHIFTS_I2C_WATCHDOG);	// Disable I2C watch dog
+	
+	if (i2c_write_ex(CHRG_SDA, CHRG_SCL, BQ24190_WRITE_ADDRESS, BQ24190_REG_TIMER_CONTROL, timer_control, _bq24190_pull_up) == false)
+		return false;
+	
+	///////////////////////////////////
+	
+	//BQ24190_REG_PWR_ON_CONFIG
+	// Minimum System Voltage Limit: (default) 101 3.5V
+	
+	//BQ24190_REG_CHARGE_CURRENT
+	// Fast Charge Current Limit: (default) 011000 2048mA
+	
+	//BQ24190_REG_PRE_TERM_CURRENT
+	// Pre-charge current limit: (default) 0001 256mA
+	// Termination current limit: (default) 0001 256mA
+	
+	//BQ24190_REG_CHARGE_VOLTAGE
+	// Charge voltage limit: (default) 101100 4.208V
+	
+	///////////////////////////////////
+	
+	uint8_t input_src_ctl = 0;
+	if (i2c_read2_ex(CHRG_SDA, CHRG_SCL, BQ24190_READ_ADDRESS, BQ24190_REG_INPUT_SOURCE_CTL, &input_src_ctl, _bq24190_pull_up) == false)
+		return false;
+	
+	debug_log_ex("BQIS ", false);
+	debug_log_hex(input_src_ctl);
+	
+	// Input voltage limit: (default) 0110 4.36V
+	
+	//input_src_ctl &= ~(0x07);
+	input_src_ctl |= (0x07);	// Set 3A limit
+	
+	if (i2c_write_ex(CHRG_SDA, CHRG_SCL, BQ24190_WRITE_ADDRESS, BQ24190_REG_INPUT_SOURCE_CTL, input_src_ctl, _bq24190_pull_up) == false)
+		return false;
+	
+	return true;
+}
+
+bool bq24190_has_interrupt(void)
+{
+	//bool state = io_test_pin(USBPM_IRQ);
+	//debug_log_ex("BQIRQ", false);
+	//debug_log_byte(state);
+	//return (state != 1);
+	return (io_test_pin(USBPM_IRQ) == false);
+}
+
+static uint8_t _bq24190_last_status, _bq24190_last_fault;
+
+bool _bq24190_handle_irq(void)
+{
+	uint8_t val = 0x00;
+	bool result = false;
+	
+	if (i2c_read2_ex(CHRG_SDA, CHRG_SCL, BQ24190_READ_ADDRESS, BQ24190_REG_SYSTEM_STATUS, &val, _bq24190_pull_up) == false)
+		goto _bq24190_handle_fail;
+	
+	debug_log_ex("BQST ", false);
+	debug_log_hex(val);
+	
+	if (i2c_read2_ex(CHRG_SDA, CHRG_SCL, BQ24190_READ_ADDRESS, BQ24190_REG_SYSTEM_STATUS, &val, _bq24190_pull_up) == false)
+		goto _bq24190_handle_fail;
+	
+	_bq24190_last_status = val;
+
+	debug_log_ex("BQST ", false);
+	debug_log_hex(val);
+	
+	/*if (val & LTC4155_WALLSNS_GOOD)
+	{
+		uint8_t wall_state = 0;
+		if (i2c_read2_ex(CHRG_SDA, CHRG_SCL, LTC4155_READ_ADDRESS, LTC4155_REG_WALL, &wall_state, _ltc4155_pull_up) == false)
+			goto _bq24190_handle_fail;
+		
+		wall_state &= ~0x1E;
+		wall_state |= 0x0E;
+		
+		if (i2c_write_ex(CHRG_SDA, CHRG_SCL, LTC4155_WRITE_ADDRESS, LTC4155_REG_WALL, wall_state, _ltc4155_pull_up) == false)
+			goto _bq24190_handle_fail;
+		
+		debug_log("I+");
+	}*/
+	
+	if (i2c_read2_ex(CHRG_SDA, CHRG_SCL, BQ24190_READ_ADDRESS, BQ24190_REG_FAULT, &val, _bq24190_pull_up) == false)
+		goto _bq24190_handle_fail;
+	
+	debug_log_ex("BQF  ", false);
+	debug_log_hex(val);
+	
+	if (i2c_read2_ex(CHRG_SDA, CHRG_SCL, BQ24190_READ_ADDRESS, BQ24190_REG_FAULT, &val, _bq24190_pull_up) == false)
+		goto _bq24190_handle_fail;
+	
+	_bq24190_last_fault = val;
+	
+	debug_log_ex("BQF  ", false);
+	debug_log_hex(val);
+	
+	val = (_bq24190_last_status >> BQ24190_SHIFTS_CHARGER_STATUS) & BQ24190_CHRG_STAT_MASK;
+	
+	if (_state.blink_error == BlinkError_None)
+	{
+		switch (val)
+		{
+			case BQ24190_CHRG_STAT_PRE_CHARGE:
+			case BQ24190_CHRG_STAT_FAST_CHARGING:
+			//case BQ24190_CHRG_STAT_CHARGE_TERMINATION_DONE:
+			{
+				if ((_state.battery_not_present == false)/* &&
+					(_ltc4155_last_good & (LTC4155_WALLSNS_GOOD | LTC4155_USBSNS_GOOD))*/)
+				{
+					//charge_set_led(true);
+					charge_notify(true);
+					break;
+				}
+			}
+			//case BQ24190_CHRG_STAT_NOT_CHARGING:
+			default:
+				//charge_set_led(false);
+				charge_notify(false);
+		}
+	}
+	
+//	bq24190_dump();
+	
+	result = true;
+_bq24190_handle_fail:
+	return result;
+}
+
+bool bq24190_handle_irq(void)	// IRQ is pulsed (not held)
+{
+	pmc_mask_irqs(true);
+	
+	//_delay_ms(250);	// [Wait for registers to update]
+	
+	bool result = _bq24190_handle_irq();
+	
+	pmc_mask_irqs(false);
+	
+	return result;
+}
+
+//void bq24190_dump(void)
+/*
+bool bq24190_set_charge_current_limit(uint8_t deciamps)
+{
+	return true;
+}
+*/
+#endif // CHARGER_TI