2 * linux/drivers/power/twl6030_bci_battery.c
4 * OMAP4:TWL6030 battery driver for Linux
6 * Copyright (C) 2008-2009 Texas Instruments, Inc.
7 * Author: Texas Instruments, Inc.
9 * This package is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
13 * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
14 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
15 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
18 #include <linux/init.h>
19 #include <linux/module.h>
20 #include <linux/device.h>
21 #include <linux/interrupt.h>
22 #include <linux/delay.h>
23 #include <linux/platform_device.h>
24 #include <linux/slab.h>
25 #include <linux/i2c/twl.h>
26 #include <linux/power_supply.h>
27 #include <linux/i2c/twl6030-gpadc.h>
28 #include <linux/i2c/bq2415x.h>
29 #include <linux/wakelock.h>
30 #include <linux/usb/otg.h>
32 #include <mach/gpio.h>
34 #define CONTROLLER_INT_MASK 0x00
35 #define CONTROLLER_CTRL1 0x01
36 #define CONTROLLER_WDG 0x02
37 #define CONTROLLER_STAT1 0x03
38 #define CHARGERUSB_INT_STATUS 0x04
39 #define CHARGERUSB_INT_MASK 0x05
40 #define CHARGERUSB_STATUS_INT1 0x06
41 #define CHARGERUSB_STATUS_INT2 0x07
42 #define CHARGERUSB_CTRL1 0x08
43 #define CHARGERUSB_CTRL2 0x09
44 #define CHARGERUSB_CTRL3 0x0A
45 #define CHARGERUSB_STAT1 0x0B
46 #define CHARGERUSB_VOREG 0x0C
47 #define CHARGERUSB_VICHRG 0x0D
48 #define CHARGERUSB_CINLIMIT 0x0E
49 #define CHARGERUSB_CTRLLIMIT1 0x0F
50 #define CHARGERUSB_CTRLLIMIT2 0x10
51 #define ANTICOLLAPSE_CTRL1 0x11
52 #define ANTICOLLAPSE_CTRL2 0x12
54 /* TWL6032 registers 0xDA to 0xDE - TWL6032_MODULE_CHARGER */
55 #define CONTROLLER_CTRL2 0x00
56 #define CONTROLLER_VSEL_COMP 0x01
57 #define CHARGERUSB_VSYSREG 0x02
58 #define CHARGERUSB_VICHRG_PC 0x03
59 #define LINEAR_CHRG_STS 0x04
61 /* TWL6032 Charger Mode Register */
62 #define CHARGER_MODE_REG 0xD4
63 #define CHARGER_MODE_POWERPATH BIT(3)
64 #define CHARGER_MODE_AUTOCHARGE BIT(6)
66 #define LINEAR_CHRG_STS_CRYSTL_OSC_OK 0x40
67 #define LINEAR_CHRG_STS_END_OF_CHARGE 0x20
68 #define LINEAR_CHRG_STS_VBATOV 0x10
69 #define LINEAR_CHRG_STS_VSYSOV 0x08
70 #define LINEAR_CHRG_STS_DPPM_STS 0x04
71 #define LINEAR_CHRG_STS_CV_STS 0x02
72 #define LINEAR_CHRG_STS_CC_STS 0x01
74 #define FG_REG_00 0x00
75 #define FG_REG_01 0x01
76 #define FG_REG_02 0x02
77 #define FG_REG_03 0x03
78 #define FG_REG_04 0x04
79 #define FG_REG_05 0x05
80 #define FG_REG_06 0x06
81 #define FG_REG_07 0x07
82 #define FG_REG_08 0x08
83 #define FG_REG_09 0x09
84 #define FG_REG_10 0x0A
85 #define FG_REG_11 0x0B
87 /* CONTROLLER_INT_MASK */
88 #define MVAC_FAULT (1 << 7)
89 #define MAC_EOC (1 << 6)
90 #define LINCH_GATED (1 << 5)
91 #define MBAT_REMOVED (1 << 4)
92 #define MFAULT_WDG (1 << 3)
93 #define MBAT_TEMP (1 << 2)
94 #define MVBUS_DET (1 << 1)
95 #define MVAC_DET (1 << 0)
97 /* CONTROLLER_CTRL1 */
98 #define CONTROLLER_CTRL1_EN_LINCH (1 << 5)
99 #define CONTROLLER_CTRL1_EN_CHARGER (1 << 4)
100 #define CONTROLLER_CTRL1_SEL_CHARGER (1 << 3)
102 /* CONTROLLER_STAT1 */
103 #define CONTROLLER_STAT1_EXTCHRG_STATZ (1 << 7)
104 #define CONTROLLER_STAT1_LINCH_GATED (1 << 6)
105 #define CONTROLLER_STAT1_CHRG_DET_N (1 << 5)
106 #define CONTROLLER_STAT1_FAULT_WDG (1 << 4)
107 #define CONTROLLER_STAT1_VAC_DET (1 << 3)
108 #define VAC_DET (1 << 3)
109 #define CONTROLLER_STAT1_VBUS_DET (1 << 2)
110 #define VBUS_DET (1 << 2)
111 #define CONTROLLER_STAT1_BAT_REMOVED (1 << 1)
112 #define CONTROLLER_STAT1_BAT_TEMP_OVRANGE (1 << 0)
114 /* CHARGERUSB_INT_STATUS */
115 #define EN_LINCH (1 << 4)
116 #define CURRENT_TERM_INT (1 << 3)
117 #define CHARGERUSB_STAT (1 << 2)
118 #define CHARGERUSB_THMREG (1 << 1)
119 #define CHARGERUSB_FAULT (1 << 0)
121 /* CHARGERUSB_INT_MASK */
122 #define MASK_MCURRENT_TERM (1 << 3)
123 #define MASK_MCHARGERUSB_STAT (1 << 2)
124 #define MASK_MCHARGERUSB_THMREG (1 << 1)
125 #define MASK_MCHARGERUSB_FAULT (1 << 0)
127 /* CHARGERUSB_STATUS_INT1 */
128 #define CHARGERUSB_STATUS_INT1_TMREG (1 << 7)
129 #define CHARGERUSB_STATUS_INT1_NO_BAT (1 << 6)
130 #define CHARGERUSB_STATUS_INT1_BST_OCP (1 << 5)
131 #define CHARGERUSB_STATUS_INT1_TH_SHUTD (1 << 4)
132 #define CHARGERUSB_STATUS_INT1_BAT_OVP (1 << 3)
133 #define CHARGERUSB_STATUS_INT1_POOR_SRC (1 << 2)
134 #define CHARGERUSB_STATUS_INT1_SLP_MODE (1 << 1)
135 #define CHARGERUSB_STATUS_INT1_VBUS_OVP (1 << 0)
137 /* CHARGERUSB_STATUS_INT2 */
138 #define ICCLOOP (1 << 3)
139 #define CURRENT_TERM (1 << 2)
140 #define CHARGE_DONE (1 << 1)
141 #define ANTICOLLAPSE (1 << 0)
143 /* CHARGERUSB_CTRL1 */
144 #define SUSPEND_BOOT (1 << 7)
145 #define OPA_MODE (1 << 6)
146 #define HZ_MODE (1 << 5)
147 #define TERM (1 << 4)
149 /* CHARGERUSB_CTRL2 */
150 #define CHARGERUSB_CTRL2_VITERM_50 (0 << 5)
151 #define CHARGERUSB_CTRL2_VITERM_100 (1 << 5)
152 #define CHARGERUSB_CTRL2_VITERM_150 (2 << 5)
153 #define CHARGERUSB_CTRL2_VITERM_400 (7 << 5)
155 /* CHARGERUSB_CTRL3 */
156 #define VBUSCHRG_LDO_OVRD (1 << 7)
157 #define CHARGE_ONCE (1 << 6)
158 #define BST_HW_PR_DIS (1 << 5)
159 #define AUTOSUPPLY (1 << 3)
160 #define BUCK_HSILIM (1 << 0)
162 /* CHARGERUSB_VOREG */
163 #define CHARGERUSB_VOREG_3P52 0x01
164 #define CHARGERUSB_VOREG_4P0 0x19
165 #define CHARGERUSB_VOREG_4P2 0x23
166 #define CHARGERUSB_VOREG_4P76 0x3F
168 /* CHARGERUSB_VICHRG */
169 #define CHARGERUSB_VICHRG_300 0x0
170 #define CHARGERUSB_VICHRG_500 0x4
171 #define CHARGERUSB_VICHRG_1500 0xE
173 /* CHARGERUSB_CINLIMIT */
174 #define CHARGERUSB_CIN_LIMIT_100 0x1
175 #define CHARGERUSB_CIN_LIMIT_300 0x5
176 #define CHARGERUSB_CIN_LIMIT_500 0x9
177 #define CHARGERUSB_CIN_LIMIT_NONE 0xF
179 /* CHARGERUSB_CTRLLIMIT1 */
180 #define VOREGL_4P16 0x21
181 #define VOREGL_4P56 0x35
183 /* CHARGERUSB_CTRLLIMIT2 */
184 #define CHARGERUSB_CTRLLIMIT2_1500 0x0E
185 #define LOCK_LIMIT (1 << 4)
187 /* ANTICOLLAPSE_CTRL2 */
188 #define BUCK_VTH_SHIFT 5
191 #define CC_ACTIVE_MODE_SHIFT 6
192 #define CC_AUTOCLEAR (1 << 2)
193 #define CC_CAL_EN (1 << 1)
194 #define CC_PAUSE (1 << 0)
196 #define REG_TOGGLE1 0x90
197 #define FGDITHS (1 << 7)
198 #define FGDITHR (1 << 6)
202 /* TWL6030_GPADC_CTRL */
203 #define GPADC_CTRL_TEMP1_EN (1 << 0) /* input ch 1 */
204 #define GPADC_CTRL_TEMP2_EN (1 << 1) /* input ch 4 */
205 #define GPADC_CTRL_SCALER_EN (1 << 2) /* input ch 2 */
206 #define GPADC_CTRL_SCALER_DIV4 (1 << 3)
207 #define GPADC_CTRL_SCALER_EN_CH11 (1 << 4) /* input ch 11 */
208 #define GPADC_CTRL_TEMP1_EN_MONITOR (1 << 5)
209 #define GPADC_CTRL_TEMP2_EN_MONITOR (1 << 6)
210 #define GPADC_CTRL_ISOURCE_EN (1 << 7)
212 #define GPADC_ISOURCE_22uA 22
213 #define GPADC_ISOURCE_7uA 7
215 /* TWL6030/6032 BATTERY VOLTAGE GPADC CHANNELS */
217 #define TWL6030_GPADC_VBAT_CHNL 0x07
218 #define TWL6032_GPADC_VBAT_CHNL 0x12
220 /* TWL6030_GPADC_CTRL2 */
221 #define GPADC_CTRL2_CH18_SCALER_EN BIT(2)
223 #define ENABLE_ISOURCE 0x80
225 #define REG_MISC1 0xE4
226 #define VAC_MEAS 0x04
227 #define VBAT_MEAS 0x02
230 #define REG_USB_VBUS_CTRL_SET 0x04
231 #define VBUS_MEAS 0x01
232 #define REG_USB_ID_CTRL_SET 0x06
235 #define BBSPOR_CFG 0xE6
236 #define BB_CHG_EN (1 << 3)
238 #define STS_HW_CONDITIONS 0x21
239 #define STS_USB_ID (1 << 2) /* Level status of USB ID */
241 #define BATTERY_RESISTOR 10000
242 #define SIMULATOR_RESISTOR 5000
243 #define BATTERY_DETECT_THRESHOLD ((BATTERY_RESISTOR + SIMULATOR_RESISTOR) / 2) //battery voltage threshold divided by 22uA
244 #define CHARGING_CAPACITY_UPDATE_PERIOD (1000 * 60 * 1)
248 /************************************************************/
249 #define TIMER_MS_COUNTS 1000
250 #define NUM_DISCHARGE_MIN_SAMPLE 30
251 #define NUM_CHARGE_MIN_SAMPLE 30
252 /**************************************************************/
254 /* To get VBUS input limit from twl6030_usb */
255 #if CONFIG_TWL6030_USB
256 extern unsigned int twl6030_get_usb_max_power(struct otg_transceiver *x);
258 static inline unsigned int twl6030_get_usb_max_power(struct otg_transceiver *x)
264 /* Ptr to thermistor table */
265 static const unsigned int fuelgauge_rate[4] = {1, 4, 16, 64};
266 static struct wake_lock chrg_lock;
269 struct twl6030_bci_device_info {
296 u8 watchdog_duration;
297 u16 current_avg_interval;
298 u16 monitoring_interval;
299 unsigned int min_vbus;
301 struct twl4030_bci_platform_data *platform_data;
303 unsigned int charger_incurrentmA;
304 unsigned int charger_outcurrentmA;
305 unsigned long usb_max_power;
308 unsigned int capacity;
309 unsigned int capacity_debounce_count;
310 unsigned long ac_next_refresh;
311 unsigned int prev_capacity;
312 unsigned int wakelock_enabled;
314 struct power_supply bat;
315 struct power_supply usb;
316 struct power_supply ac;
317 struct power_supply bk_bat;
319 struct otg_transceiver *otg;
320 struct notifier_block nb;
321 struct work_struct usb_work;
323 struct workqueue_struct *freezable_work;
325 struct delayed_work twl6030_bci_monitor_work;
326 struct delayed_work twl6030_current_avg_work;
328 unsigned long features;
333 /* max scale current based on sense resitor */
334 int current_max_scale;
335 struct delayed_work work;
336 unsigned int interval;
338 int gBatCapacityDisChargeCnt;
342 int gBatCapacityChargeCnt;
345 static BLOCKING_NOTIFIER_HEAD(notifier_list);
346 extern u32 wakeup_timer_seconds;
348 static void twl6030_config_min_vbus_reg(struct twl6030_bci_device_info *di,
354 /* not required on TWL6032 */
355 if (di->features & TWL6032_SUBCLASS)
358 if (value > 4760 || value < 4200) {
359 dev_err(di->dev, "invalid min vbus\n");
363 ret = twl_i2c_read_u8(TWL6030_MODULE_CHARGER, &rd_reg,
367 rd_reg = rd_reg & 0x1F;
368 rd_reg = rd_reg | (((value - 4200)/80) << BUCK_VTH_SHIFT);
369 ret = twl_i2c_write_u8(TWL6030_MODULE_CHARGER, rd_reg,
375 pr_err("%s: Error access to TWL6030 (%d)\n", __func__, ret);
378 static void twl6030_config_iterm_reg(struct twl6030_bci_device_info *di,
379 unsigned int term_currentmA)
383 if ((term_currentmA > 400) || (term_currentmA < 50)) {
384 dev_err(di->dev, "invalid termination current\n");
388 term_currentmA = ((term_currentmA - 50)/50) << 5;
389 ret = twl_i2c_write_u8(TWL6030_MODULE_CHARGER, term_currentmA,
392 pr_err("%s: Error access to TWL6030 (%d)\n", __func__, ret);
395 static unsigned int twl6030_get_iterm_reg(struct twl6030_bci_device_info *di)
398 unsigned int currentmA;
401 ret = twl_i2c_read_u8(TWL6030_MODULE_CHARGER, &val, CHARGERUSB_CTRL2);
403 pr_err("%s: Error access to TWL6030 (%d)\n", __func__, ret);
406 currentmA = 50 + (val >> 5) * 50;
411 static void twl6030_config_voreg_reg(struct twl6030_bci_device_info *di,
412 unsigned int voltagemV)
416 if ((voltagemV < 3500) || (voltagemV > 4760)) {
417 dev_err(di->dev, "invalid charger_voltagemV\n");
421 voltagemV = (voltagemV - 3500) / 20;
422 ret = twl_i2c_write_u8(TWL6030_MODULE_CHARGER, voltagemV,
425 pr_err("%s: Error access to TWL6030 (%d)\n", __func__, ret);
428 static unsigned int twl6030_get_voreg_reg(struct twl6030_bci_device_info *di)
431 unsigned int voltagemV;
434 ret = twl_i2c_read_u8(TWL6030_MODULE_CHARGER, &val, CHARGERUSB_VOREG);
436 pr_err("%s: Error access to TWL6030 (%d)\n", __func__, ret);
439 voltagemV = 3500 + (val * 20);
444 static void twl6030_config_vichrg_reg(struct twl6030_bci_device_info *di,
445 unsigned int currentmA)
449 if ((currentmA >= 300) && (currentmA <= 450))
450 currentmA = (currentmA - 300) / 50;
451 else if ((currentmA >= 500) && (currentmA <= 1500))
452 currentmA = (currentmA - 500) / 100 + 4;
454 dev_err(di->dev, "invalid charger_currentmA\n");
458 ret = twl_i2c_write_u8(TWL6030_MODULE_CHARGER, currentmA,
461 pr_err("%s: Error access to TWL6030 (%d)\n", __func__, ret);
464 static void twl6030_config_cinlimit_reg(struct twl6030_bci_device_info *di,
465 unsigned int currentmA)
469 if ((currentmA >= 50) && (currentmA <= 750))
470 currentmA = (currentmA - 50) / 50;
471 else if ((currentmA > 750) && (currentmA <= 1500) &&
472 (di->features & TWL6032_SUBCLASS)) {
473 currentmA = ((currentmA % 100) ? 0x30 : 0x20) +
474 ((currentmA - 100) / 100);
475 } else if (currentmA < 50) {
476 dev_err(di->dev, "invalid input current limit\n");
479 /* This is no current limit */
483 ret = twl_i2c_write_u8(TWL6030_MODULE_CHARGER, currentmA,
484 CHARGERUSB_CINLIMIT);
486 pr_err("%s: Error access to TWL6030 (%d)\n", __func__, ret);
489 static void twl6030_config_limit1_reg(struct twl6030_bci_device_info *di,
490 unsigned int voltagemV)
494 if ((voltagemV < 3500) || (voltagemV > 4760)) {
495 dev_err(di->dev, "invalid max_charger_voltagemV\n");
499 voltagemV = (voltagemV - 3500) / 20;
500 ret = twl_i2c_write_u8(TWL6030_MODULE_CHARGER, voltagemV,
501 CHARGERUSB_CTRLLIMIT1);
503 pr_err("%s: Error access to TWL6030 (%d)\n", __func__, ret);
506 static unsigned int twl6030_get_limit1_reg(struct twl6030_bci_device_info *di)
509 unsigned int voltagemV;
512 ret = twl_i2c_read_u8(TWL6030_MODULE_CHARGER, &val,
513 CHARGERUSB_CTRLLIMIT1);
515 pr_err("%s: Error access to TWL6030 (%d)\n", __func__, ret);
518 voltagemV = 3500 + (val * 20);
523 static void twl6030_config_limit2_reg(struct twl6030_bci_device_info *di,
524 unsigned int currentmA)
528 if ((currentmA >= 300) && (currentmA <= 450))
529 currentmA = (currentmA - 300) / 50;
530 else if ((currentmA >= 500) && (currentmA <= 1500))
531 currentmA = (currentmA - 500) / 100 + 4;
533 dev_err(di->dev, "invalid max_charger_currentmA\n");
537 currentmA |= LOCK_LIMIT;
538 ret = twl_i2c_write_u8(TWL6030_MODULE_CHARGER, currentmA,
539 CHARGERUSB_CTRLLIMIT2);
541 pr_err("%s: Error access to TWL6030 (%d)\n", __func__, ret);
544 static const int vichrg[] = {
545 300, 350, 400, 450, 500, 600, 700, 800,
546 900, 1000, 1100, 1200, 1300, 1400, 1500, 300
549 static unsigned int twl6030_get_limit2_reg(struct twl6030_bci_device_info *di)
552 unsigned int currentmA;
555 ret = twl_i2c_read_u8(TWL6030_MODULE_CHARGER, &val,
556 CHARGERUSB_CTRLLIMIT2);
558 pr_err("%s: Error access to TWL6030 (%d)\n", __func__, ret);
561 currentmA = vichrg[val & 0xF];
567 * Return channel value
570 static int twl6030_get_gpadc_conversion(struct twl6030_bci_device_info *di,
573 struct twl6030_gpadc_request req;
577 req.channels = (1 << channel_no);
578 req.method = TWL6030_GPADC_SW2;
581 ret = twl6030_gpadc_conversion(&req);
585 if (req.rbuf[channel_no] > 0)
586 temp = req.rbuf[channel_no];
591 static int is_battery_present(struct twl6030_bci_device_info *di)
594 static unsigned int current_src_val;
597 * Prevent charging on batteries were id resistor is
600 val = twl6030_get_gpadc_conversion(di,di->gpadc_vbat_chnl);
603 * twl6030_get_gpadc_conversion for
604 * 6030 return resistance, for 6032 - voltage and
605 * it should be converted to resistance before
608 if (!current_src_val) {
611 if (twl_i2c_read_u8(TWL_MODULE_MADC, ®,
613 pr_err("%s: Error reading TWL6030_GPADC_CTRL\n",
616 current_src_val = (reg & GPADC_CTRL_ISOURCE_EN) ?
621 val = (val * 1000) / current_src_val;
623 if (val < BATTERY_DETECT_THRESHOLD)
629 static void twl6030_stop_usb_charger(struct twl6030_bci_device_info *di)
633 //printk("*************twl6030_stop_usb_charger***************\n");
634 if (di->use_hw_charger) {
635 ret = twl_i2c_read_u8(TWL6030_MODULE_CHARGER, ®,
640 ret = twl_i2c_write_u8(TWL6030_MODULE_CHARGER, reg,
648 di->charger_source = 0;
649 di->charge_status = POWER_SUPPLY_STATUS_DISCHARGING;
651 ret = twl_i2c_write_u8(TWL6030_MODULE_CHARGER, 0, CONTROLLER_CTRL1);
655 pr_err("%s: Error access to TWL6030 (%d)\n", __func__, ret);
658 static void twl6030_start_usb_charger(struct twl6030_bci_device_info *di)
664 //printk("***************twl6030_start_usb_charger*****************************************\n");
666 if (di->use_hw_charger) {
667 ret = twl_i2c_read_u8(TWL6030_MODULE_CHARGER, ®,
673 ret = twl_i2c_write_u8(TWL6030_MODULE_CHARGER, reg,
681 if (!is_battery_present(di)) {
682 dev_info(di->dev, "BATTERY NOT DETECTED!\n");
686 if (di->charger_source == POWER_SUPPLY_TYPE_MAINS)
689 dev_dbg(di->dev, "USB input current limit %dmA\n",
690 di->charger_incurrentmA);
691 if (di->charger_incurrentmA < 50) {
692 ret = twl_i2c_write_u8(TWL6030_MODULE_CHARGER,
693 0, CONTROLLER_CTRL1);
700 twl6030_config_vichrg_reg(di, di->charger_outcurrentmA);
701 twl6030_config_cinlimit_reg(di, di->charger_incurrentmA);
702 twl6030_config_voreg_reg(di, di->platform_data->max_bat_voltagemV);
703 twl6030_config_iterm_reg(di, di->platform_data->termination_currentmA);
705 if (di->charger_incurrentmA >= 50) {
706 reg = CONTROLLER_CTRL1_EN_CHARGER;
708 if (di->use_power_path)
709 reg |= CONTROLLER_CTRL1_EN_LINCH;
711 ret = twl_i2c_write_u8(TWL6030_MODULE_CHARGER, reg,
716 di->charge_status = POWER_SUPPLY_STATUS_CHARGING;
720 pr_err("%s: Error access to TWL6030 (%d)\n", __func__, ret);
723 static void twl6030_stop_ac_charger(struct twl6030_bci_device_info *di)
728 di->charger_source = 0;
729 di->charge_status = POWER_SUPPLY_STATUS_DISCHARGING;
730 events = BQ2415x_STOP_CHARGING;
732 if (di->use_hw_charger)
735 blocking_notifier_call_chain(¬ifier_list, events, NULL);
737 ret = twl_i2c_write_u8(TWL6030_MODULE_CHARGER, 0, CONTROLLER_CTRL1);
739 pr_err("%s: Error access to TWL6030 (%d)\n", __func__, ret);
741 if (di->wakelock_enabled)
742 wake_unlock(&chrg_lock);
745 static void twl6030_start_ac_charger(struct twl6030_bci_device_info *di)
750 if (!is_battery_present(di)) {
751 dev_info(di->dev, "BATTERY NOT DETECTED!\n");
754 dev_dbg(di->dev, "AC charger detected\n");
755 di->charger_source = POWER_SUPPLY_TYPE_MAINS;
756 di->charge_status = POWER_SUPPLY_STATUS_CHARGING;
757 events = BQ2415x_START_CHARGING;
759 if (di->use_hw_charger)
762 blocking_notifier_call_chain(¬ifier_list, events, NULL);
764 ret = twl_i2c_write_u8(TWL6030_MODULE_CHARGER,
765 CONTROLLER_CTRL1_EN_CHARGER |
766 CONTROLLER_CTRL1_SEL_CHARGER,
769 pr_err("%s: Error access to TWL6030 (%d)\n", __func__, ret);
771 if (di->wakelock_enabled)
772 wake_lock(&chrg_lock);
775 static void twl6030_stop_charger(struct twl6030_bci_device_info *di)
777 //printk("$$$$$$$$$$$$twl6030_stop_charger$$$$$$$$$$$$\n");
778 if (di->charger_source == POWER_SUPPLY_TYPE_MAINS)
779 twl6030_stop_ac_charger(di);
780 else if (di->charger_source == POWER_SUPPLY_TYPE_USB)
781 twl6030_stop_usb_charger(di);
784 static void twl6032_charger_ctrl_interrupt(struct twl6030_bci_device_info *di)
786 u8 stat_toggle, stat_reset, stat_set = 0;
787 u8 present_state = 0, linear_state;
788 u8 present_status = 0;
791 err = twl_i2c_read_u8(TWL6032_MODULE_CHARGER, &present_state,
794 dev_err(di->dev, "%s: Error access to TWL6030 (%d)\n",
799 err = twl_i2c_read_u8(TWL6032_MODULE_CHARGER, &present_status,
800 CHARGERUSB_INT_STATUS);
802 dev_err(di->dev, "%s: Error access to TWL6030 (%d)\n",
807 linear_state = di->linear_stat;
809 stat_toggle = linear_state ^ present_state;
810 stat_set = stat_toggle & present_state;
811 stat_reset = stat_toggle & linear_state;
812 di->linear_stat = present_state;
814 if (stat_set & LINEAR_CHRG_STS_CRYSTL_OSC_OK)
815 dev_dbg(di->dev, "Linear status: CRYSTAL OSC OK\n");
816 if (present_state & LINEAR_CHRG_STS_END_OF_CHARGE) {
817 dev_dbg(di->dev, "Linear status: END OF CHARGE\n");
818 di->charge_status = POWER_SUPPLY_STATUS_NOT_CHARGING;
820 if (present_status & EN_LINCH) {
821 dev_dbg(di->dev, "Linear status: START OF CHARGE\n");
822 di->charge_status = POWER_SUPPLY_STATUS_CHARGING;
825 if (stat_set & LINEAR_CHRG_STS_VBATOV) {
826 dev_dbg(di->dev, "Linear Status: VBATOV\n");
827 di->bat_health = POWER_SUPPLY_HEALTH_OVERVOLTAGE;
829 if (stat_reset & LINEAR_CHRG_STS_VBATOV) {
830 dev_dbg(di->dev, "Linear Status: VBATOV\n");
831 di->bat_health = POWER_SUPPLY_HEALTH_GOOD;
834 if (stat_set & LINEAR_CHRG_STS_VSYSOV)
835 dev_dbg(di->dev, "Linear Status: VSYSOV\n");
836 if (stat_set & LINEAR_CHRG_STS_DPPM_STS)
837 dev_dbg(di->dev, "Linear Status: DPPM STS\n");
838 if (stat_set & LINEAR_CHRG_STS_CV_STS)
839 dev_dbg(di->dev, "Linear Status: CV STS\n");
840 if (stat_set & LINEAR_CHRG_STS_CC_STS)
841 dev_dbg(di->dev, "Linear Status: CC STS\n");
845 * Interrupt service routine
847 * Attends to TWL 6030 power module interruptions events, specifically
848 * USB_PRES (USB charger presence) CHG_PRES (AC charger presence) events
851 static irqreturn_t twl6030charger_ctrl_interrupt(int irq, void *_di)
853 // printk("%s\n", __func__);
855 struct twl6030_bci_device_info *di = _di;
857 int charger_fault = 0;
859 u8 stat_toggle, stat_reset, stat_set = 0;
861 u8 present_charge_state = 0;
862 u8 ac_or_vbus, no_ac_and_vbus = 0;
863 u8 hw_state = 0, temp = 0;
865 /* read charger controller_stat1 */
866 ret = twl_i2c_read_u8(TWL6030_MODULE_CHARGER, &present_charge_state,
870 * Since present state read failed, charger_state is no
871 * longer valid, reset to zero inorder to detect next events
877 ret = twl_i2c_read_u8(TWL6030_MODULE_ID0, &hw_state, STS_HW_CONDITIONS);
881 charge_state = di->stat1;
883 stat_toggle = charge_state ^ present_charge_state;
884 stat_set = stat_toggle & present_charge_state;
885 stat_reset = stat_toggle & charge_state;
887 no_ac_and_vbus = !((present_charge_state) & (VBUS_DET | VAC_DET));
888 ac_or_vbus = charge_state & (VBUS_DET | VAC_DET);
889 if (no_ac_and_vbus && ac_or_vbus) {
890 di->charger_source = 0;
891 dev_dbg(di->dev, "No Charging source\n");
892 /* disable charging when no source present */
895 charge_state = present_charge_state;
896 di->stat1 = present_charge_state;
897 if ((charge_state & VAC_DET) &&
898 (charge_state & CONTROLLER_STAT1_EXTCHRG_STATZ)) {
899 events = BQ2415x_CHARGER_FAULT;
900 blocking_notifier_call_chain(¬ifier_list, events, NULL);
903 if (stat_reset & VBUS_DET) {
904 /* On a USB detach, UNMASK VBUS OVP if masked*/
905 ret = twl_i2c_read_u8(TWL6030_MODULE_CHARGER, &temp,
906 CHARGERUSB_INT_MASK);
910 if (temp & MASK_MCHARGERUSB_FAULT) {
911 ret = twl_i2c_write_u8(TWL6030_MODULE_CHARGER,
912 (temp & ~MASK_MCHARGERUSB_FAULT),
913 CHARGERUSB_INT_MASK);
918 dev_info(di->dev, "usb removed\n");
919 twl6030_stop_usb_charger(di);
920 if (present_charge_state & VAC_DET)
921 twl6030_start_ac_charger(di);
925 if (stat_set & VBUS_DET) {
926 /* In HOST mode (ID GROUND) when a device is connected,
927 * Mask VBUS OVP interrupt and do no enable usb
930 if (hw_state & STS_USB_ID) {
931 ret = twl_i2c_read_u8(TWL6030_MODULE_CHARGER,
933 CHARGERUSB_INT_MASK);
937 if (!(temp & MASK_MCHARGERUSB_FAULT)) {
938 ret = twl_i2c_write_u8(
939 TWL6030_MODULE_CHARGER,
940 (temp | MASK_MCHARGERUSB_FAULT),
941 CHARGERUSB_INT_MASK);
946 di->usb_online = POWER_SUPPLY_TYPE_USB;
947 if ((present_charge_state & VAC_DET) &&
948 (di->vac_priority == 2))
949 dev_info(di->dev, "USB charger detected"
950 ", continue with VAC\n");
953 POWER_SUPPLY_TYPE_USB;
955 POWER_SUPPLY_STATUS_CHARGING;
957 dev_info(di->dev, "vbus detect\n");
961 if (stat_reset & VAC_DET) {
963 dev_info(di->dev, "vac removed\n");
964 twl6030_stop_ac_charger(di);
965 if (present_charge_state & VBUS_DET) {
966 di->charger_source = POWER_SUPPLY_TYPE_USB;
968 POWER_SUPPLY_STATUS_CHARGING;
969 twl6030_start_usb_charger(di);
972 if (stat_set & VAC_DET) {
973 di->ac_online = POWER_SUPPLY_TYPE_MAINS;
974 if ((present_charge_state & VBUS_DET) &&
975 (di->vac_priority == 3))
977 "AC charger detected"
978 ", continue with VBUS\n");
980 twl6030_start_ac_charger(di);
983 if (stat_set & CONTROLLER_STAT1_FAULT_WDG) {
985 dev_info(di->dev, "Fault watchdog fired\n");
987 if (stat_reset & CONTROLLER_STAT1_FAULT_WDG)
988 dev_err(di->dev, "Fault watchdog recovered\n");
989 if (stat_set & CONTROLLER_STAT1_BAT_REMOVED)
990 dev_err(di->dev, "Battery removed\n");
991 if (stat_reset & CONTROLLER_STAT1_BAT_REMOVED)
992 dev_err(di->dev, "Battery inserted\n");
993 if (stat_set & CONTROLLER_STAT1_BAT_TEMP_OVRANGE) {
994 dev_err(di->dev, "Battery temperature overrange\n");
995 di->bat_health = POWER_SUPPLY_HEALTH_OVERHEAT;
997 if (stat_reset & CONTROLLER_STAT1_BAT_TEMP_OVRANGE) {
998 dev_dbg(di->dev, "Battery temperature within range\n");
999 di->bat_health = POWER_SUPPLY_HEALTH_GOOD;
1001 if (di->features & TWL6032_SUBCLASS)
1002 twl6032_charger_ctrl_interrupt(di);
1004 if (charger_fault) {
1005 twl6030_stop_usb_charger(di);
1006 di->charge_status = POWER_SUPPLY_STATUS_NOT_CHARGING;
1007 dev_dbg(di->dev, "Charger Fault stop charging\n");
1010 if (di->capacity != -1)
1011 power_supply_changed(&di->bat);
1013 cancel_delayed_work(&di->twl6030_bci_monitor_work);
1014 queue_delayed_work(di->freezable_work, &di->twl6030_bci_monitor_work, 0);
1020 static irqreturn_t twl6030charger_fault_interrupt(int irq, void *_di)
1022 struct twl6030_bci_device_info *di = _di;
1023 int charger_fault = 0;
1026 u8 usb_charge_sts = 0, usb_charge_sts1 = 0, usb_charge_sts2 = 0;
1028 ret = twl_i2c_read_u8(TWL6030_MODULE_CHARGER, &usb_charge_sts,
1029 CHARGERUSB_INT_STATUS);
1033 ret = twl_i2c_read_u8(TWL6030_MODULE_CHARGER, &usb_charge_sts1,
1034 CHARGERUSB_STATUS_INT1);
1038 ret = twl_i2c_read_u8(TWL6030_MODULE_CHARGER, &usb_charge_sts2,
1039 CHARGERUSB_STATUS_INT2);
1043 di->status_int1 = usb_charge_sts1;
1044 di->status_int2 = usb_charge_sts2;
1045 if (usb_charge_sts & CURRENT_TERM_INT)
1046 dev_dbg(di->dev, "USB CURRENT_TERM_INT\n");
1047 if (usb_charge_sts & CHARGERUSB_THMREG)
1048 dev_dbg(di->dev, "USB CHARGERUSB_THMREG\n");
1049 if (usb_charge_sts & CHARGERUSB_FAULT)
1050 dev_dbg(di->dev, "USB CHARGERUSB_FAULT\n");
1052 if (usb_charge_sts1 & CHARGERUSB_STATUS_INT1_TMREG)
1053 dev_dbg(di->dev, "USB CHARGER Thermal regulation activated\n");
1054 if (usb_charge_sts1 & CHARGERUSB_STATUS_INT1_NO_BAT)
1055 dev_dbg(di->dev, "No Battery Present\n");
1056 if (usb_charge_sts1 & CHARGERUSB_STATUS_INT1_BST_OCP)
1057 dev_dbg(di->dev, "USB CHARGER Boost Over current protection\n");
1058 if (usb_charge_sts1 & CHARGERUSB_STATUS_INT1_TH_SHUTD) {
1060 dev_dbg(di->dev, "USB CHARGER Thermal Shutdown\n");
1062 if (usb_charge_sts1 & CHARGERUSB_STATUS_INT1_BAT_OVP)
1063 dev_dbg(di->dev, "USB CHARGER Bat Over Voltage Protection\n");
1064 if (usb_charge_sts1 & CHARGERUSB_STATUS_INT1_POOR_SRC)
1065 dev_dbg(di->dev, "USB CHARGER Poor input source\n");
1066 if (usb_charge_sts1 & CHARGERUSB_STATUS_INT1_SLP_MODE)
1067 dev_dbg(di->dev, "USB CHARGER Sleep mode\n");
1068 if (usb_charge_sts1 & CHARGERUSB_STATUS_INT1_VBUS_OVP)
1069 dev_dbg(di->dev, "USB CHARGER VBUS over voltage\n");
1071 if (usb_charge_sts2 & CHARGE_DONE) {
1072 di->charge_status = POWER_SUPPLY_STATUS_FULL;
1073 dev_dbg(di->dev, "USB charge done\n");
1075 if (usb_charge_sts2 & CURRENT_TERM)
1076 dev_dbg(di->dev, "USB CURRENT_TERM\n");
1077 if (usb_charge_sts2 & ICCLOOP)
1078 dev_dbg(di->dev, "USB ICCLOOP\n");
1079 if (usb_charge_sts2 & ANTICOLLAPSE)
1080 dev_dbg(di->dev, "USB ANTICOLLAPSE\n");
1082 if (charger_fault) {
1083 twl6030_stop_usb_charger(di);
1084 di->charge_status = POWER_SUPPLY_STATUS_NOT_CHARGING;
1085 dev_dbg(di->dev, "Charger Fault stop charging\n");
1087 dev_info(di->dev, "Charger fault detected STS, INT1, INT2 %x %x %x\n",
1088 usb_charge_sts, usb_charge_sts1, usb_charge_sts2);
1090 power_supply_changed(&di->bat);
1096 * In HW charger mode on 6032 irq routines must only deal with updating
1097 * state of charger. The hardware deals with start/stop conditions
1100 static irqreturn_t twl6032charger_ctrl_interrupt_hw(int irq, void *_di)
1102 struct twl6030_bci_device_info *di = _di;
1104 int charger_stop = 0, end_of_charge = 0;
1107 //printk("xxxxxxxxxxxxxxxxxxxxxxxx twl6032charger_ctrl_interrupt_hw xxxxxxxxxxxxxx\n");
1108 /* read charger controller_stat1 */
1109 ret = twl_i2c_read_u8(TWL6030_MODULE_CHARGER, &stat1,
1114 ret = twl_i2c_read_u8(TWL6032_MODULE_CHARGER, &linear,
1119 if (!(stat1 & (VBUS_DET | VAC_DET))) {
1121 di->ac_online = di->usb_online = 0;
1122 //printk("%%%%%%%%%%%%%%charger_stop = 1%%%%%%%%%%%%%\n");
1125 if (!(di->usb_online || di->ac_online)) {
1126 if (stat1 & VBUS_DET) {
1128 di->bat_health = POWER_SUPPLY_HEALTH_GOOD;
1129 // printk("%%%%%%%%%%%%%%di->usb_online = 1%%%%%%%%%%%%%\n");
1131 //schedule_work(&di->usb_work);
1132 } else if (stat1 & VAC_DET) {
1134 di->bat_health = POWER_SUPPLY_HEALTH_GOOD;
1135 // printk("%%%%%%%%%%%%%%di->ac_online = 1%%%%%%%%%%%%%\n");
1139 if (stat1 & CONTROLLER_STAT1_FAULT_WDG) {
1141 di->bat_health = POWER_SUPPLY_HEALTH_UNSPEC_FAILURE;
1142 dev_err(di->dev, "Charger error : Fault watchdog\n");
1144 if (stat1 & CONTROLLER_STAT1_BAT_REMOVED) {
1146 di->bat_health = POWER_SUPPLY_HEALTH_DEAD;
1147 dev_info(di->dev, "Battery removed\n");
1149 if (stat1 & CONTROLLER_STAT1_BAT_TEMP_OVRANGE) {
1152 "Charger error : Battery temperature overrange\n");
1153 di->bat_health = POWER_SUPPLY_HEALTH_OVERHEAT;
1156 if ((stat1 & CONTROLLER_STAT1_LINCH_GATED) &&
1157 di->use_power_path) {
1161 if (linear & LINEAR_CHRG_STS_CRYSTL_OSC_OK) {
1162 di->bat_health = POWER_SUPPLY_HEALTH_UNSPEC_FAILURE;
1163 dev_dbg(di->dev, "Charger error: CRYSTAL OSC OK\n");
1166 if (linear & LINEAR_CHRG_STS_END_OF_CHARGE) {
1168 di->bat_health = POWER_SUPPLY_HEALTH_GOOD;
1169 dev_dbg(di->dev, "Charger: Full charge\n");
1172 if (linear & LINEAR_CHRG_STS_VBATOV) {
1173 di->bat_health = POWER_SUPPLY_HEALTH_OVERVOLTAGE;
1175 "Charger error : Linear Status: VBATOV\n");
1178 if (linear & LINEAR_CHRG_STS_VSYSOV) {
1179 di->bat_health = POWER_SUPPLY_HEALTH_UNSPEC_FAILURE;
1181 "Charger error : Linear Status: VSYSOV\n");
1186 if (!(stat1 & (VBUS_DET | VAC_DET))) {
1187 di->charge_status = POWER_SUPPLY_STATUS_DISCHARGING;
1191 POWER_SUPPLY_STATUS_FULL;
1194 POWER_SUPPLY_STATUS_NOT_CHARGING;
1197 //printk("%%%%%%%%%%%%%%%%%%twl6032charger_ctrl_interrupt_hw end xxxxxxxxxxxxxx\n");
1199 power_supply_changed(&di->bat);
1205 static irqreturn_t twl6032charger_fault_interrupt_hw(int irq, void *_di)
1207 struct twl6030_bci_device_info *di = _di;
1208 int charger_stop = 0, charger_start = 0;
1210 u8 sts, sts_int1, sts_int2, stat1;
1212 ret = twl_i2c_read_u8(TWL6030_MODULE_CHARGER, &sts,
1213 CHARGERUSB_INT_STATUS);
1217 ret = twl_i2c_read_u8(TWL6030_MODULE_CHARGER, &sts_int1,
1218 CHARGERUSB_STATUS_INT1);
1222 ret = twl_i2c_read_u8(TWL6030_MODULE_CHARGER, &sts_int2,
1223 CHARGERUSB_STATUS_INT2);
1227 ret = twl_i2c_read_u8(TWL6030_MODULE_CHARGER, &stat1,
1232 if (sts & EN_LINCH) {
1234 dev_dbg(di->dev, "Charger: EN_LINCH\n");
1238 if ((sts & CURRENT_TERM_INT) && !di->use_power_path) {
1239 dev_dbg(di->dev, "Charger: CURRENT_TERM_INT\n");
1241 if (sts_int2 & CURRENT_TERM) {
1243 dev_dbg(di->dev, "Charger error: CURRENT_TERM\n");
1247 if (sts & CHARGERUSB_STAT) {
1248 dev_dbg(di->dev, "Charger: CHARGEUSB_STAT\n");
1250 if (sts_int2 & ANTICOLLAPSE)
1251 dev_dbg(di->dev, "Charger error: ANTICOLLAPSE\n");
1254 if (sts & CHARGERUSB_THMREG) {
1255 dev_dbg(di->dev, "Charger: CHARGERUSB_THMREG\n");
1257 if (sts_int1 & CHARGERUSB_STATUS_INT1_TMREG)
1258 dev_dbg(di->dev, "Charger error: TMREG\n");
1261 if (sts & CHARGERUSB_FAULT) {
1262 dev_dbg(di->dev, "Charger: CHARGERUSB_FAULT\n");
1266 if (!di->use_power_path) {
1267 if (sts_int1 & CHARGERUSB_STATUS_INT1_NO_BAT) {
1268 di->bat_health = POWER_SUPPLY_HEALTH_DEAD;
1270 "Charger error : NO_BAT\n");
1272 if (sts_int1 & CHARGERUSB_STATUS_INT1_BAT_OVP) {
1274 POWER_SUPPLY_HEALTH_OVERVOLTAGE;
1275 dev_dbg(di->dev, "Charger error : BAT_OVP\n");
1279 if (sts_int1 & CHARGERUSB_STATUS_INT1_BST_OCP) {
1280 di->bat_health = POWER_SUPPLY_HEALTH_UNSPEC_FAILURE;
1281 printk(KERN_ERR "Charger error : BST_OCP\n");
1283 if (sts_int1 & CHARGERUSB_STATUS_INT1_TH_SHUTD) {
1284 di->bat_health = POWER_SUPPLY_HEALTH_OVERHEAT;
1285 printk(KERN_ERR "Charger error : TH_SHUTD\n");
1287 if (sts_int1 & CHARGERUSB_STATUS_INT1_POOR_SRC) {
1288 di->bat_health = POWER_SUPPLY_HEALTH_UNSPEC_FAILURE;
1289 printk(KERN_ERR "Charger error : POOR_SRC\n");
1291 if (sts_int1 & CHARGERUSB_STATUS_INT1_SLP_MODE)
1292 dev_dbg(di->dev, "Charger error: SLP_MODE\n");
1294 if (sts_int1 & CHARGERUSB_STATUS_INT1_VBUS_OVP) {
1295 di->bat_health = POWER_SUPPLY_HEALTH_UNSPEC_FAILURE;
1296 printk(KERN_ERR "Charger error : VBUS_OVP\n");
1301 if (!(stat1 & (VBUS_DET | VAC_DET)))
1302 di->charge_status = POWER_SUPPLY_STATUS_DISCHARGING;
1304 di->charge_status = POWER_SUPPLY_STATUS_NOT_CHARGING;
1308 if (charger_start) {
1309 di->charge_status = POWER_SUPPLY_STATUS_CHARGING;
1310 di->bat_health = POWER_SUPPLY_HEALTH_GOOD;
1313 power_supply_changed(&di->bat);
1318 static void twl6030battery_current(struct twl6030_bci_device_info *di)
1323 int current_now = 0;
1325 /* FG_REG_10, 11 is 14 bit signed instantaneous current sample value */
1326 ret = twl_i2c_read(TWL6030_MODULE_GASGAUGE, (u8 *)&read_value,
1329 dev_info(di->dev, "failed to read FG_REG_10: current_now\n");
1333 temp = ((s16)(read_value << 2) >> 2);
1334 current_now = temp - di->cc_offset;
1336 /* current drawn per sec */
1337 current_now = current_now * fuelgauge_rate[di->fuelgauge_mode];
1338 /* current in mAmperes */
1339 current_now = (current_now * di->current_max_scale) >> 13;
1340 /* current in uAmperes */
1341 current_now = current_now * 1000;
1342 di->current_uA = current_now;
1348 * Setup the twl6030 BCI module to enable backup
1351 static int twl6030backupbatt_setup(void)
1356 ret = twl_i2c_read_u8(TWL6030_MODULE_ID0, &rd_reg, BBSPOR_CFG);
1360 rd_reg |= BB_CHG_EN;
1361 ret = twl_i2c_write_u8(TWL6030_MODULE_ID0, rd_reg, BBSPOR_CFG);
1367 * Setup the twl6030 BCI module to measure battery
1370 static int twl6030battery_temp_setup(bool enable)
1375 ret = twl_i2c_read_u8(TWL_MODULE_MADC, &rd_reg, TWL6030_GPADC_CTRL);
1380 rd_reg |= (GPADC_CTRL_TEMP1_EN | GPADC_CTRL_TEMP2_EN |
1381 GPADC_CTRL_TEMP1_EN_MONITOR |
1382 GPADC_CTRL_TEMP2_EN_MONITOR | GPADC_CTRL_SCALER_DIV4);
1384 rd_reg ^= (GPADC_CTRL_TEMP1_EN | GPADC_CTRL_TEMP2_EN |
1385 GPADC_CTRL_TEMP1_EN_MONITOR |
1386 GPADC_CTRL_TEMP2_EN_MONITOR | GPADC_CTRL_SCALER_DIV4);
1388 ret = twl_i2c_write_u8(TWL_MODULE_MADC, rd_reg, TWL6030_GPADC_CTRL);
1393 static int twl6030battery_voltage_setup(struct twl6030_bci_device_info *di)
1398 ret = twl_i2c_read_u8(TWL6030_MODULE_ID0, &rd_reg, REG_MISC1);
1402 rd_reg = rd_reg | VAC_MEAS | VBAT_MEAS | BB_MEAS;
1403 ret = twl_i2c_write_u8(TWL6030_MODULE_ID0, rd_reg, REG_MISC1);
1407 ret = twl_i2c_read_u8(TWL_MODULE_USB, &rd_reg, REG_USB_VBUS_CTRL_SET);
1411 rd_reg = rd_reg | VBUS_MEAS;
1412 ret = twl_i2c_write_u8(TWL_MODULE_USB, rd_reg, REG_USB_VBUS_CTRL_SET);
1416 ret = twl_i2c_read_u8(TWL_MODULE_USB, &rd_reg, REG_USB_ID_CTRL_SET);
1420 rd_reg = rd_reg | ID_MEAS;
1421 ret = twl_i2c_write_u8(TWL_MODULE_USB, rd_reg, REG_USB_ID_CTRL_SET);
1425 if (di->features & TWL6032_SUBCLASS)
1426 ret = twl_i2c_write_u8(TWL_MODULE_MADC,
1427 GPADC_CTRL2_CH18_SCALER_EN,
1428 TWL6030_GPADC_CTRL2);
1433 static int twl6030battery_current_setup(bool enable)
1439 * Writing 0 to REG_TOGGLE1 has no effect, so
1440 * can directly set/reset FG.
1443 reg = FGDITHS | FGS;
1445 reg = FGDITHR | FGR;
1447 ret = twl_i2c_write_u8(TWL6030_MODULE_ID1, reg, REG_TOGGLE1);
1451 ret = twl_i2c_write_u8(TWL6030_MODULE_GASGAUGE, CC_CAL_EN, FG_REG_00);
1456 static enum power_supply_property twl6030_bci_battery_props[] = {
1457 POWER_SUPPLY_PROP_STATUS,
1458 POWER_SUPPLY_PROP_HEALTH,
1459 POWER_SUPPLY_PROP_ONLINE,
1460 POWER_SUPPLY_PROP_VOLTAGE_NOW,
1461 POWER_SUPPLY_PROP_CURRENT_NOW,
1462 POWER_SUPPLY_PROP_CURRENT_AVG,
1463 POWER_SUPPLY_PROP_CAPACITY,
1464 POWER_SUPPLY_PROP_TEMP,
1467 static enum power_supply_property twl6030_usb_props[] = {
1468 POWER_SUPPLY_PROP_ONLINE,
1469 POWER_SUPPLY_PROP_VOLTAGE_NOW,
1472 static enum power_supply_property twl6030_ac_props[] = {
1473 POWER_SUPPLY_PROP_ONLINE,
1474 POWER_SUPPLY_PROP_VOLTAGE_NOW,
1477 static enum power_supply_property twl6030_bk_bci_battery_props[] = {
1478 POWER_SUPPLY_PROP_VOLTAGE_NOW,
1481 static void twl6030_current_avg(struct work_struct *work)
1483 // printk("%s\n", __func__);
1487 int current_avg_uA = 0;
1489 struct twl6030_bci_device_info *di = container_of(work,
1490 struct twl6030_bci_device_info,
1491 twl6030_current_avg_work.work);
1493 di->charge_n2 = di->charge_n1;
1494 di->timer_n2 = di->timer_n1;
1496 /* FG_REG_01, 02, 03 is 24 bit unsigned sample counter value */
1497 ret = twl_i2c_read(TWL6030_MODULE_GASGAUGE, (u8 *) &di->timer_n1,
1502 * FG_REG_04, 5, 6, 7 is 32 bit signed accumulator value
1503 * accumulates instantaneous current value
1505 ret = twl_i2c_read(TWL6030_MODULE_GASGAUGE, (u8 *) &di->charge_n1,
1509 /* FG_REG_08, 09 is 10 bit signed calibration offset value */
1510 ret = twl_i2c_read(TWL6030_MODULE_GASGAUGE, (u8 *) &cc_offset,
1514 cc_offset = ((s16)(cc_offset << 6) >> 6);
1515 di->cc_offset = cc_offset;
1517 samples = di->timer_n1 - di->timer_n2;
1518 /* check for timer overflow */
1519 if (di->timer_n1 < di->timer_n2)
1520 samples = samples + (1 << 24);
1522 /* offset is accumulative over number of samples */
1523 cc_offset = cc_offset * samples;
1525 current_avg_uA = ((di->charge_n1 - di->charge_n2 - cc_offset)
1526 * di->current_max_scale) /
1527 fuelgauge_rate[di->fuelgauge_mode];
1528 /* clock is a fixed 32Khz */
1529 current_avg_uA >>= 15;
1531 /* Correct for the fuelguage sampling rate */
1532 samples /= fuelgauge_rate[di->fuelgauge_mode] * 4;
1535 * Only update the current average if we have had a valid number
1536 * of samples in the accumulation.
1539 current_avg_uA = current_avg_uA / samples;
1540 di->current_avg_uA = current_avg_uA * 1000;
1543 queue_delayed_work(di->freezable_work, &di->twl6030_current_avg_work,
1544 msecs_to_jiffies(1000 * di->current_avg_interval));
1547 pr_err("%s: Error access to TWL6030 (%d)\n", __func__, ret);
1550 struct batt_vol_cal{
1555 static struct batt_vol_cal batt_table[BATT_NUM] = {
1556 {0,3571,3730},//{1,3420,3525},{2,3420,3575},{3,3475,3600},{5,3505,3620},{7,3525,3644},
1557 {9,3628,3770},//{11,3557,3670},{13,3570,3684},{15,3580,3700},{17,3610,3715},
1558 {19,3670,3878},//{21,3640,3748},{23,3652,3756},{25,3662,3775},{27,3672,3790},
1559 {29,3719,3895},//{31,3687,3814},{33,3693,3818},{35,3699,3822},{37,3705,3825},
1560 {39,3770,3941},//{41,3714,3832},{43,3718,3834},{45,3722,3836},{47,3726,3837},
1561 {49,3801,3980},//{51,3734,3841},{53,3738,3842},{55,3742,3844},{57,3746,3844},
1562 {59,3849,4010},//{61,3756,3860},{63,3764,3864},{65,3774,3871},{67,3786,3890},
1563 {69,3864,4024},//{71,3808,3930},{73,3817,3977},{75,3827,3977},{77,3845,3997},
1564 {79,3884,4040},//{81,3964,4047},{83,3982,4064},{85,4002,4080},{87,4026,4096},
1565 {89,4001,4050},//{91,4034,4144},{93,4055,4150},{95,4085,4195},{97,4085,4195},
1569 static int capacity_changed(struct twl6030_bci_device_info *di)
1571 int curr_capacity = di->capacity;
1572 int charger_source = di->charger_source;
1573 int charging_disabled = 0;
1574 struct batt_vol_cal *p;
1578 /* Because system load is always greater than
1579 * termination current, we will never get a CHARGE DONE
1580 * int from BQ. And charging will alwys be in progress.
1581 * We consider Vbat>3900 to be a full battery.
1582 * Since Voltage measured during charging is Voreg ~4.2v,
1583 * we dont update capacity if we are charging.
1586 /* if it has been more than 10 minutes since our last update
1587 * and we are charging we force a update.
1589 if (time_after(jiffies, di->ac_next_refresh)
1590 && (di->charger_source != POWER_SUPPLY_TYPE_BATTERY)) {
1591 charging_disabled = 1;
1592 di->ac_next_refresh = jiffies +
1593 msecs_to_jiffies(CHARGING_CAPACITY_UPDATE_PERIOD);
1596 /* We have to disable charging to read correct
1599 twl6030_stop_charger(di);
1600 /*voltage setteling time*/
1602 di->voltage_mV = twl6030_get_gpadc_conversion(di,
1603 di->gpadc_vbat_chnl);
1607 /* Setting the capacity level only makes sense when on
1608 * the battery is powering the board.
1610 if (di->charge_status == POWER_SUPPLY_STATUS_CHARGING){ //charge
1611 if(di->voltage_mV >= p[BATT_NUM - 1].charge_vol){
1612 curr_capacity = 100;
1615 if(di->voltage_mV <= p[0].charge_vol){
1619 for(i = 0; i < BATT_NUM - 1; i++){
1621 if((p[i].charge_vol <= di->voltage_mV) && (di->voltage_mV < (p[i+1].charge_vol))){
1622 curr_capacity = p[i].disp_cal ;
1630 else if (di->charge_status == POWER_SUPPLY_STATUS_DISCHARGING){ //discharge
1631 if(di->voltage_mV >= p[BATT_NUM - 1].dis_charge_vol){
1632 curr_capacity = 100;
1635 if(di->voltage_mV <= p[0].dis_charge_vol){
1639 for(i = 0; i < BATT_NUM - 1; i++){
1640 if(((p[i].dis_charge_vol) <= di->voltage_mV) && (di->voltage_mV < (p[i+1].dis_charge_vol))){
1641 curr_capacity = p[i].disp_cal ;
1653 if (di->charge_status == POWER_SUPPLY_STATUS_CHARGING) {
1654 if (di->voltage_mV < 3520)
1656 else if (di->voltage_mV < 3600 && di->voltage_mV >= 3500)
1658 else if (di->voltage_mV < 3700 && di->voltage_mV >= 3600)
1660 else if (di->voltage_mV < 3800 && di->voltage_mV >= 3700)
1662 else if (di->voltage_mV < 3900 && di->voltage_mV >= 3800)
1664 else if (di->voltage_mV >= 3900)
1665 curr_capacity = 100;
1671 /* if we disabled charging to check capacity,
1672 * enable it again after we read the
1675 if (charging_disabled) {
1676 if (charger_source == POWER_SUPPLY_TYPE_MAINS)
1677 twl6030_start_ac_charger(di);
1678 else if (charger_source == POWER_SUPPLY_TYPE_USB)
1679 twl6030_start_usb_charger(di);
1682 /* if battery is not present we assume it is on battery simulator and
1683 * current capacity is set to 100%
1685 if (!is_battery_present(di))
1686 curr_capacity = 100;
1689 /* Debouncing of voltage change. */
1690 if (di->capacity == -1) {
1691 di->capacity = curr_capacity;
1692 di->capacity_debounce_count = 0;
1696 if (curr_capacity != di->prev_capacity) {
1697 di->prev_capacity = curr_capacity;
1698 di->capacity_debounce_count = 0;
1699 } else if (++di->capacity_debounce_count >= 4) {
1700 di->capacity = curr_capacity;
1701 di->capacity_debounce_count = 0;
1708 static int twl6030_batt_vol_to_capacity (struct twl6030_bci_device_info *di)
1716 struct batt_vol_cal *p;
1719 BatVoltage = di ->voltage_mV;
1721 if (di->charge_status == POWER_SUPPLY_STATUS_CHARGING){ //charge
1722 if(BatVoltage >= (p[BATT_NUM - 1].charge_vol)){
1726 if(BatVoltage <= (p[0].charge_vol)){
1730 for(i = 0; i < BATT_NUM - 1; i++){
1732 if(((p[i].charge_vol) <= BatVoltage) && (BatVoltage < (p[i+1].charge_vol))){
1733 // capacity = p[i].disp_cal ;
1734 capacity = i * 10 + ((BatVoltage - p[i].charge_vol) * 10) / (p[i+1] .charge_vol- p[i].charge_vol);
1745 if(BatVoltage >= (p[BATT_NUM - 1].dis_charge_vol)){
1749 if(BatVoltage <= (p[0].dis_charge_vol)){
1753 for(i = 0; i < BATT_NUM - 1; i++){
1754 if(((p[i].dis_charge_vol) <= BatVoltage) && (BatVoltage < (p[i+1].dis_charge_vol))){
1755 // capacity = p[i].disp_cal ;
1756 capacity = i * 10 + ((BatVoltage - p[i].dis_charge_vol) * 10) / (p[i+1] .dis_charge_vol- p[i].dis_charge_vol);
1773 void twl6030_batt_capacity_samples(struct twl6030_bci_device_info *di)
1776 capacity = twl6030_batt_vol_to_capacity (di);
1777 twl6030battery_current(di);
1778 //printk("old-capactiyt == %d, now-capacity == %d , di->charge_status == %d,di->current_uA = %d\n", di->capacity, capacity, di->charge_status,di->current_uA);
1779 ///////////////////////////////////////////////////////////////////////////////////////////////////////
1782 // capacity = twl6030_batt_vol_to_capacity (di);
1784 if (di->charge_status == POWER_SUPPLY_STATUS_FULL){
1785 if (capacity < di->capacity){
1786 if (di ->gBatCapacityChargeCnt >= NUM_CHARGE_MIN_SAMPLE){
1787 di ->gBatCapacityChargeCnt = 0;
1788 if (di -> capacity < 99){
1798 if (di->charge_status == POWER_SUPPLY_STATUS_CHARGING){
1799 if (capacity > di->capacity){
1800 //ʵ¼Ê²ÉÑùµ½µÄÈÝÁ¿±ÈÏÔʾµÄÈÝÁ¿´ó£¬Öð¼¶ÉÏÉý
1801 if (++(di->gBatCapacityChargeCnt) >= NUM_CHARGE_MIN_SAMPLE){
1802 di ->gBatCapacityChargeCnt = 0;
1803 if (di -> capacity < 99){
1808 di->gBatCapacityDisChargeCnt = 0; //·ÅµçµÄ¼ÆÊýֵΪ0
1812 //////////////////////////////////////////////////////////////////////////////////////////////////////////////
1813 if ((di->charge_status == POWER_SUPPLY_STATUS_DISCHARGING)||(di->charge_status == POWER_SUPPLY_STATUS_NOT_CHARGING)){
1815 //·Åµçʱ,Ö»ÔÊÐíµçѹϽµ
1816 if (capacity < di -> capacity){
1817 if (++(di->gBatCapacityDisChargeCnt) >= NUM_DISCHARGE_MIN_SAMPLE){
1818 di ->gBatCapacityDisChargeCnt = 0;
1819 if (di -> capacity > 0){
1821 //bat->bat_change = 1;
1826 di ->gBatCapacityDisChargeCnt = 0;
1828 //di ->gBatCapacityChargeCnt = 0;
1830 di ->capacitytmp = capacity;
1833 static int twl6030_set_watchdog(struct twl6030_bci_device_info *di, int val)
1835 di->watchdog_duration = val;
1837 dev_dbg(di->dev, "Watchdog reset %d", val);
1839 return twl_i2c_write_u8(TWL6030_MODULE_CHARGER, val, CONTROLLER_WDG);
1843 static void twl6030_bci_adc_set(struct twl6030_bci_device_info *di)
1845 struct twl6030_gpadc_request req;
1851 /* Kick the charger watchdog */
1852 if (di->charge_status == POWER_SUPPLY_STATUS_CHARGING)
1853 twl6030_set_watchdog(di, di->watchdog_duration);
1855 req.method = TWL6030_GPADC_SW2;
1856 req.channels = (1 << 1) | (1 << di->gpadc_vbat_chnl) | (1 << 8);
1859 ret = twl6030_gpadc_conversion(&req);
1863 dev_dbg(di->dev, "gpadc conversion failed: %d\n", ret);
1867 if (req.rbuf[di->gpadc_vbat_chnl] > 0)
1868 di->voltage_mV = req.rbuf[di->gpadc_vbat_chnl];
1870 if (req.rbuf[8] > 0)
1871 di->bk_voltage_mV = req.rbuf[8];
1873 if (di->platform_data->battery_tmp_tbl == NULL)
1876 adc_code = req.rbuf[1];
1877 for (temp = 0; temp < di->platform_data->tblsize; temp++) {
1878 if (adc_code >= di->platform_data->
1879 battery_tmp_tbl[temp])
1882 //printk("twl6030_bci_adc_set---di->voltage_mV-=-%d,di->capacity = %d \n",di->voltage_mV,di->capacity);
1883 /* first 2 values are for negative temperature */
1887 static void twl6030_bci_battery_work(struct work_struct *work)
1890 struct twl6030_bci_device_info *di = container_of(work,
1891 struct twl6030_bci_device_info, twl6030_bci_monitor_work.work);
1892 struct twl6030_gpadc_request req;
1898 /* Kick the charger watchdog */
1899 if (di->charge_status == POWER_SUPPLY_STATUS_CHARGING)
1900 twl6030_set_watchdog(di, di->watchdog_duration);
1902 req.method = TWL6030_GPADC_SW2;
1903 req.channels = (1 << 1) | (1 << di->gpadc_vbat_chnl) | (1 << 8);
1906 ret = twl6030_gpadc_conversion(&req);
1908 queue_delayed_work(di->freezable_work, &di->twl6030_bci_monitor_work,
1909 msecs_to_jiffies(TIMER_MS_COUNTS)); //* di->monitoring_interval
1912 dev_dbg(di->dev, "gpadc conversion failed: %d\n", ret);
1916 if (req.rbuf[di->gpadc_vbat_chnl] > 0)
1917 di->voltage_mV = req.rbuf[di->gpadc_vbat_chnl];
1919 if (req.rbuf[8] > 0)
1920 di->bk_voltage_mV = req.rbuf[8];
1922 if (di->platform_data->battery_tmp_tbl == NULL)
1925 adc_code = req.rbuf[1];
1926 for (temp = 0; temp < di->platform_data->tblsize; temp++) {
1927 if (adc_code >= di->platform_data->
1928 battery_tmp_tbl[temp])
1931 //printk("workxxxxx---di->voltage_mV-=-%d,di->capacity = %d \n",di->voltage_mV,di->capacity);
1932 /* first 2 values are for negative temperature */
1933 di->temp_C = (temp - 2); /* in degrees Celsius */
1934 // if (capacity_changed(di)) //xsf
1936 twl6030_batt_capacity_samples(di);
1937 // di->capacity = level;
1938 power_supply_changed(&di->bat);
1942 static void twl6030_current_mode_changed(struct twl6030_bci_device_info *di)
1945 //printk("%s\n", __func__);
1947 /* FG_REG_01, 02, 03 is 24 bit unsigned sample counter value */
1948 ret = twl_i2c_read(TWL6030_MODULE_GASGAUGE, (u8 *) &di->timer_n1,
1953 * FG_REG_04, 5, 6, 7 is 32 bit signed accumulator value
1954 * accumulates instantaneous current value
1956 ret = twl_i2c_read(TWL6030_MODULE_GASGAUGE, (u8 *) &di->charge_n1,
1961 cancel_delayed_work(&di->twl6030_current_avg_work);
1962 queue_delayed_work(di->freezable_work, &di->twl6030_current_avg_work,
1963 msecs_to_jiffies(1000 * di->current_avg_interval));
1966 pr_err("%s: Error access to TWL6030 (%d)\n", __func__, ret);
1969 static void twl6030_work_interval_changed(struct twl6030_bci_device_info *di)
1971 //printk("%s\n", __func__);
1973 cancel_delayed_work(&di->twl6030_bci_monitor_work);
1974 queue_delayed_work(di->freezable_work, &di->twl6030_bci_monitor_work,
1975 msecs_to_jiffies(1000 * di->monitoring_interval));
1978 #define to_twl6030_bci_device_info(x) container_of((x), \
1979 struct twl6030_bci_device_info, bat);
1981 static void twl6030_bci_battery_external_power_changed(struct power_supply *psy)
1982 {// printk("%s\n", __func__);
1984 struct twl6030_bci_device_info *di = to_twl6030_bci_device_info(psy);
1986 cancel_delayed_work(&di->twl6030_bci_monitor_work);
1987 queue_delayed_work(di->freezable_work, &di->twl6030_bci_monitor_work, 0);
1991 #define to_twl6030_ac_device_info(x) container_of((x), \
1992 struct twl6030_bci_device_info, ac);
1994 static int twl6030_ac_get_property(struct power_supply *psy,
1995 enum power_supply_property psp,
1996 union power_supply_propval *val)
1999 struct twl6030_bci_device_info *di = to_twl6030_ac_device_info(psy);
2001 case POWER_SUPPLY_PROP_ONLINE:
2002 twl_i2c_read_u8(TWL6030_MODULE_CHARGER, &stat1,
2005 if (stat1 & VAC_DET) {
2011 ///printk("&&&&&&&&&&&&ac---charge ac->intval = %d &&&&&&&&&&&&&&&\n" ,val->intval);
2014 case POWER_SUPPLY_PROP_VOLTAGE_NOW:
2015 val->intval = twl6030_get_gpadc_conversion(di, 9) * 1000;
2025 #define to_twl6030_usb_device_info(x) container_of((x), \
2026 struct twl6030_bci_device_info, usb);
2028 static int twl6030_usb_get_property(struct power_supply *psy,
2029 enum power_supply_property psp,
2030 union power_supply_propval *val)
2033 struct twl6030_bci_device_info *di = to_twl6030_usb_device_info(psy);
2035 case POWER_SUPPLY_PROP_ONLINE:
2037 twl_i2c_read_u8(TWL6030_MODULE_CHARGER, &stat1,
2040 if (stat1 & VBUS_DET) {
2046 //val->intval = di->usb_online; //xsf
2048 //printk("&&&&&&&&&&&&usb---charge val->intval = %d &&&&&&&&&&&&&&&\n" ,val->intval);
2050 case POWER_SUPPLY_PROP_VOLTAGE_NOW:
2051 val->intval = twl6030_get_gpadc_conversion(di, 10) * 1000;
2052 //printk("&&&&&&&&&&&&usb-voltage = &&&&&&&&&&&&&&&%d\n", val->intval);
2061 #define to_twl6030_bk_bci_device_info(x) container_of((x), \
2062 struct twl6030_bci_device_info, bk_bat);
2064 static int twl6030_bk_bci_battery_get_property(struct power_supply *psy,
2065 enum power_supply_property psp,
2066 union power_supply_propval *val)
2068 struct twl6030_bci_device_info *di = to_twl6030_bk_bci_device_info(psy);
2071 case POWER_SUPPLY_PROP_VOLTAGE_NOW:
2072 val->intval = di->bk_voltage_mV * 1000;
2081 static int twl6030_bci_battery_get_property(struct power_supply *psy,
2082 enum power_supply_property psp,
2083 union power_supply_propval *val)
2085 struct twl6030_bci_device_info *di;
2087 di = to_twl6030_bci_device_info(psy);
2090 case POWER_SUPPLY_PROP_STATUS:
2091 val->intval = di->charge_status;
2093 case POWER_SUPPLY_PROP_VOLTAGE_NOW:
2094 di->voltage_mV = twl6030_get_gpadc_conversion(di,
2095 di->gpadc_vbat_chnl);
2096 val->intval = di->voltage_mV * 1000;
2098 case POWER_SUPPLY_PROP_CURRENT_NOW:
2099 twl6030battery_current(di);
2100 val->intval = di->current_uA;
2102 case POWER_SUPPLY_PROP_TEMP:
2103 val->intval = di->temp_C;
2105 case POWER_SUPPLY_PROP_ONLINE:
2106 val->intval = di->charger_source;
2108 case POWER_SUPPLY_PROP_CURRENT_AVG:
2109 val->intval = di->current_avg_uA;
2111 case POWER_SUPPLY_PROP_HEALTH:
2112 val->intval = di->bat_health;
2114 case POWER_SUPPLY_PROP_CAPACITY:
2115 val->intval = di->capacity;
2123 int twl6030_register_notifier(struct notifier_block *nb,
2124 unsigned int events)
2126 return blocking_notifier_chain_register(¬ifier_list, nb);
2128 EXPORT_SYMBOL_GPL(twl6030_register_notifier);
2130 int twl6030_unregister_notifier(struct notifier_block *nb,
2131 unsigned int events)
2133 return blocking_notifier_chain_unregister(¬ifier_list, nb);
2135 EXPORT_SYMBOL_GPL(twl6030_unregister_notifier);
2137 static void twl6030_usb_charger_work(struct work_struct *work)
2139 struct twl6030_bci_device_info *di =
2140 container_of(work, struct twl6030_bci_device_info, usb_work);
2141 switch (di->event) {
2142 case USB_EVENT_CHARGER:
2143 /* POWER_SUPPLY_TYPE_USB_DCP */
2144 di->usb_online = POWER_SUPPLY_TYPE_USB_DCP;
2145 di->charger_incurrentmA = 1800;
2147 case USB_EVENT_VBUS:
2148 switch (di->usb_online) {
2149 case POWER_SUPPLY_TYPE_USB_CDP:
2151 * Only 500mA here or high speed chirp
2152 * handshaking may break
2154 di->charger_incurrentmA = 500;
2155 case POWER_SUPPLY_TYPE_USB:
2159 case USB_EVENT_NONE:
2161 di->charger_incurrentmA = 0;
2163 case USB_EVENT_ENUMERATED:
2164 if (di->usb_online == POWER_SUPPLY_TYPE_USB_CDP)
2165 di->charger_incurrentmA = 560;
2167 di->charger_incurrentmA = di->usb_max_power;
2172 twl6030_start_usb_charger(di);
2174 power_supply_changed(&di->usb);
2177 static int twl6030_usb_notifier_call(struct notifier_block *nb,
2178 unsigned long event, void *data)
2180 struct twl6030_bci_device_info *di =
2181 container_of(nb, struct twl6030_bci_device_info, nb);
2184 case USB_EVENT_VBUS:
2185 di->usb_online = *((unsigned int *) data);
2187 case USB_EVENT_ENUMERATED:
2188 di->usb_max_power = *((unsigned int *) data);
2190 case USB_EVENT_CHARGER:
2191 case USB_EVENT_NONE:
2198 schedule_work(&di->usb_work);
2203 static ssize_t set_fg_mode(struct device *dev,
2204 struct device_attribute *attr, const char *buf, size_t count)
2209 struct twl6030_bci_device_info *di = dev_get_drvdata(dev);
2211 if ((strict_strtol(buf, 10, &val) < 0) || (val > 3))
2213 di->fuelgauge_mode = val;
2214 ret = twl_i2c_write_u8(TWL6030_MODULE_GASGAUGE, (val << 6) | CC_CAL_EN,
2218 twl6030_current_mode_changed(di);
2222 static ssize_t show_fg_mode(struct device *dev,
2223 struct device_attribute *attr, char *buf)
2226 struct twl6030_bci_device_info *di = dev_get_drvdata(dev);
2228 val = di->fuelgauge_mode;
2229 return sprintf(buf, "%d\n", val);
2232 static ssize_t set_charge_src(struct device *dev,
2233 struct device_attribute *attr, const char *buf, size_t count)
2237 struct twl6030_bci_device_info *di = dev_get_drvdata(dev);
2239 if ((strict_strtol(buf, 10, &val) < 0) || (val < 2) || (val > 3))
2241 di->vac_priority = val;
2245 static ssize_t show_charge_src(struct device *dev,
2246 struct device_attribute *attr, char *buf)
2249 struct twl6030_bci_device_info *di = dev_get_drvdata(dev);
2251 val = di->vac_priority;
2252 return sprintf(buf, "%d\n", val);
2255 static ssize_t show_vbus_voltage(struct device *dev,
2256 struct device_attribute *attr, char *buf)
2259 struct twl6030_bci_device_info *di = dev_get_drvdata(dev);
2261 val = twl6030_get_gpadc_conversion(di, 10);
2263 return sprintf(buf, "%d\n", val);
2266 static ssize_t show_id_level(struct device *dev, struct device_attribute *attr,
2270 struct twl6030_bci_device_info *di = dev_get_drvdata(dev);
2272 val = twl6030_get_gpadc_conversion(di, 14);
2274 return sprintf(buf, "%d\n", val);
2277 static ssize_t set_watchdog(struct device *dev,
2278 struct device_attribute *attr, const char *buf, size_t count)
2283 struct twl6030_bci_device_info *di = dev_get_drvdata(dev);
2285 if ((strict_strtol(buf, 10, &val) < 0) || (val < 1) || (val > 127))
2287 ret = twl6030_set_watchdog(di, val);
2294 static ssize_t show_watchdog(struct device *dev,
2295 struct device_attribute *attr, char *buf)
2298 struct twl6030_bci_device_info *di = dev_get_drvdata(dev);
2300 val = di->watchdog_duration;
2301 return sprintf(buf, "%d\n", val);
2304 static ssize_t show_fg_counter(struct device *dev,
2305 struct device_attribute *attr, char *buf)
2310 ret = twl_i2c_read(TWL6030_MODULE_GASGAUGE, (u8 *) &fg_counter,
2314 return sprintf(buf, "%d\n", fg_counter);
2317 static ssize_t show_fg_accumulator(struct device *dev,
2318 struct device_attribute *attr, char *buf)
2323 ret = twl_i2c_read(TWL6030_MODULE_GASGAUGE, (u8 *) &fg_accum,
2328 return sprintf(buf, "%ld\n", fg_accum);
2331 static ssize_t show_fg_offset(struct device *dev,
2332 struct device_attribute *attr, char *buf)
2337 ret = twl_i2c_read(TWL6030_MODULE_GASGAUGE, (u8 *) &fg_offset,
2341 fg_offset = ((s16)(fg_offset << 6) >> 6);
2343 return sprintf(buf, "%d\n", fg_offset);
2346 static ssize_t set_fg_clear(struct device *dev, struct device_attribute *attr,
2347 const char *buf, size_t count)
2353 if ((strict_strtol(buf, 10, &val) < 0) || (val != 1))
2355 ret = twl_i2c_write_u8(TWL6030_MODULE_GASGAUGE, CC_AUTOCLEAR,
2363 static ssize_t set_fg_cal(struct device *dev, struct device_attribute *attr,
2364 const char *buf, size_t count)
2370 if ((strict_strtol(buf, 10, &val) < 0) || (val != 1))
2372 ret = twl_i2c_write_u8(TWL6030_MODULE_GASGAUGE, CC_CAL_EN, FG_REG_00);
2379 static ssize_t set_charging(struct device *dev, struct device_attribute *attr,
2380 const char *buf, size_t count)
2383 struct twl6030_bci_device_info *di = dev_get_drvdata(dev);
2385 if (strncmp(buf, "startac", 7) == 0) {
2386 if (di->charger_source == POWER_SUPPLY_TYPE_USB)
2387 twl6030_stop_usb_charger(di);
2388 twl6030_start_ac_charger(di);
2389 } else if (strncmp(buf, "startusb", 8) == 0) {
2390 if (di->charger_source == POWER_SUPPLY_TYPE_MAINS)
2391 twl6030_stop_ac_charger(di);
2392 di->charger_source = POWER_SUPPLY_TYPE_USB;
2393 di->charge_status = POWER_SUPPLY_STATUS_CHARGING;
2394 twl6030_start_usb_charger(di);
2395 } else if (strncmp(buf, "stop" , 4) == 0)
2396 twl6030_stop_charger(di);
2403 static ssize_t set_regulation_voltage(struct device *dev,
2404 struct device_attribute *attr, const char *buf, size_t count)
2408 struct twl6030_bci_device_info *di = dev_get_drvdata(dev);
2410 if ((strict_strtol(buf, 10, &val) < 0) || (val < 3500)
2411 || (val > di->platform_data->max_charger_voltagemV))
2413 di->platform_data->max_bat_voltagemV = val;
2414 twl6030_config_voreg_reg(di, val);
2419 static ssize_t show_regulation_voltage(struct device *dev,
2420 struct device_attribute *attr, char *buf)
2423 struct twl6030_bci_device_info *di = dev_get_drvdata(dev);
2425 val = di->platform_data->max_bat_voltagemV;
2426 return sprintf(buf, "%u\n", val);
2429 static ssize_t set_termination_current(struct device *dev,
2430 struct device_attribute *attr, const char *buf, size_t count)
2434 struct twl6030_bci_device_info *di = dev_get_drvdata(dev);
2436 if ((strict_strtol(buf, 10, &val) < 0) || (val < 50) || (val > 400))
2438 di->platform_data->termination_currentmA = val;
2439 twl6030_config_iterm_reg(di, val);
2444 static ssize_t show_termination_current(struct device *dev,
2445 struct device_attribute *attr, char *buf)
2448 struct twl6030_bci_device_info *di = dev_get_drvdata(dev);
2450 val = di->platform_data->termination_currentmA;
2451 return sprintf(buf, "%u\n", val);
2454 static ssize_t set_cin_limit(struct device *dev,
2455 struct device_attribute *attr, const char *buf, size_t count)
2459 struct twl6030_bci_device_info *di = dev_get_drvdata(dev);
2461 if ((strict_strtol(buf, 10, &val) < 0) || (val < 50) || (val > 1500))
2463 di->charger_incurrentmA = val;
2464 twl6030_config_cinlimit_reg(di, val);
2469 static ssize_t show_cin_limit(struct device *dev, struct device_attribute *attr,
2473 struct twl6030_bci_device_info *di = dev_get_drvdata(dev);
2475 val = di->charger_incurrentmA;
2476 return sprintf(buf, "%u\n", val);
2479 static ssize_t set_charge_current(struct device *dev,
2480 struct device_attribute *attr, const char *buf, size_t count)
2484 struct twl6030_bci_device_info *di = dev_get_drvdata(dev);
2486 if ((strict_strtol(buf, 10, &val) < 0) || (val < 300)
2487 || (val > di->platform_data->max_charger_currentmA))
2489 di->charger_outcurrentmA = val;
2490 twl6030_config_vichrg_reg(di, val);
2495 static ssize_t show_charge_current(struct device *dev,
2496 struct device_attribute *attr, char *buf)
2499 struct twl6030_bci_device_info *di = dev_get_drvdata(dev);
2501 val = di->charger_outcurrentmA;
2502 return sprintf(buf, "%u\n", val);
2505 static ssize_t set_min_vbus(struct device *dev, struct device_attribute *attr,
2506 const char *buf, size_t count)
2510 struct twl6030_bci_device_info *di = dev_get_drvdata(dev);
2512 if ((strict_strtol(buf, 10, &val) < 0) || (val < 4200) || (val > 4760))
2515 twl6030_config_min_vbus_reg(di, val);
2520 static ssize_t show_min_vbus(struct device *dev, struct device_attribute *attr,
2524 struct twl6030_bci_device_info *di = dev_get_drvdata(dev);
2527 return sprintf(buf, "%u\n", val);
2530 static ssize_t set_current_avg_interval(struct device *dev,
2531 struct device_attribute *attr, const char *buf, size_t count)
2535 struct twl6030_bci_device_info *di = dev_get_drvdata(dev);
2537 if ((strict_strtol(buf, 10, &val) < 0) || (val < 10) || (val > 3600))
2539 di->current_avg_interval = val;
2540 twl6030_current_mode_changed(di);
2545 static ssize_t show_current_avg_interval(struct device *dev,
2546 struct device_attribute *attr, char *buf)
2549 struct twl6030_bci_device_info *di = dev_get_drvdata(dev);
2551 val = di->current_avg_interval;
2552 return sprintf(buf, "%u\n", val);
2555 static ssize_t set_wakelock_enable(struct device *dev,
2556 struct device_attribute *attr, const char *buf, size_t count)
2560 struct twl6030_bci_device_info *di = dev_get_drvdata(dev);
2562 if ((strict_strtol(buf, 10, &val) < 0) || (val < 0) || (val > 1))
2565 if ((val) && (di->charger_source == POWER_SUPPLY_TYPE_MAINS))
2566 wake_lock(&chrg_lock);
2568 wake_unlock(&chrg_lock);
2570 di->wakelock_enabled = val;
2574 static ssize_t show_wakelock_enable(struct device *dev,
2575 struct device_attribute *attr, char *buf)
2578 struct twl6030_bci_device_info *di = dev_get_drvdata(dev);
2580 val = di->wakelock_enabled;
2581 return sprintf(buf, "%u\n", val);
2584 static ssize_t set_monitoring_interval(struct device *dev,
2585 struct device_attribute *attr, const char *buf, size_t count)
2589 struct twl6030_bci_device_info *di = dev_get_drvdata(dev);
2591 if ((strict_strtol(buf, 10, &val) < 0) || (val < 10) || (val > 3600))
2593 di->monitoring_interval = val;
2594 twl6030_work_interval_changed(di);
2599 static ssize_t show_monitoring_interval(struct device *dev,
2600 struct device_attribute *attr, char *buf)
2603 struct twl6030_bci_device_info *di = dev_get_drvdata(dev);
2605 val = di->monitoring_interval;
2606 return sprintf(buf, "%u\n", val);
2609 static ssize_t show_bsi(struct device *dev,
2610 struct device_attribute *attr, char *buf)
2613 struct twl6030_bci_device_info *di = dev_get_drvdata(dev);
2615 val = twl6030_get_gpadc_conversion(di, 0);
2616 return sprintf(buf, "%d\n", val);
2619 static ssize_t show_stat1(struct device *dev,
2620 struct device_attribute *attr, char *buf)
2623 struct twl6030_bci_device_info *di = dev_get_drvdata(dev);
2626 return sprintf(buf, "%u\n", val);
2629 static ssize_t show_status_int1(struct device *dev,
2630 struct device_attribute *attr, char *buf)
2633 struct twl6030_bci_device_info *di = dev_get_drvdata(dev);
2635 val = di->status_int1;
2636 return sprintf(buf, "%u\n", val);
2639 static ssize_t show_status_int2(struct device *dev,
2640 struct device_attribute *attr, char *buf)
2643 struct twl6030_bci_device_info *di = dev_get_drvdata(dev);
2645 val = di->status_int2;
2646 return sprintf(buf, "%u\n", val);
2649 static DEVICE_ATTR(fg_mode, S_IWUSR | S_IRUGO, show_fg_mode, set_fg_mode);
2650 static DEVICE_ATTR(charge_src, S_IWUSR | S_IRUGO, show_charge_src,
2652 static DEVICE_ATTR(vbus_voltage, S_IRUGO, show_vbus_voltage, NULL);
2653 static DEVICE_ATTR(id_level, S_IRUGO, show_id_level, NULL);
2654 static DEVICE_ATTR(watchdog, S_IWUSR | S_IRUGO, show_watchdog, set_watchdog);
2655 static DEVICE_ATTR(fg_counter, S_IRUGO, show_fg_counter, NULL);
2656 static DEVICE_ATTR(fg_accumulator, S_IRUGO, show_fg_accumulator, NULL);
2657 static DEVICE_ATTR(fg_offset, S_IRUGO, show_fg_offset, NULL);
2658 static DEVICE_ATTR(fg_clear, S_IWUSR, NULL, set_fg_clear);
2659 static DEVICE_ATTR(fg_cal, S_IWUSR, NULL, set_fg_cal);
2660 static DEVICE_ATTR(charging, S_IWUSR | S_IRUGO, NULL, set_charging);
2661 static DEVICE_ATTR(regulation_voltage, S_IWUSR | S_IRUGO,
2662 show_regulation_voltage, set_regulation_voltage);
2663 static DEVICE_ATTR(termination_current, S_IWUSR | S_IRUGO,
2664 show_termination_current, set_termination_current);
2665 static DEVICE_ATTR(cin_limit, S_IWUSR | S_IRUGO, show_cin_limit,
2667 static DEVICE_ATTR(charge_current, S_IWUSR | S_IRUGO, show_charge_current,
2668 set_charge_current);
2669 static DEVICE_ATTR(min_vbus, S_IWUSR | S_IRUGO, show_min_vbus, set_min_vbus);
2670 static DEVICE_ATTR(monitoring_interval, S_IWUSR | S_IRUGO,
2671 show_monitoring_interval, set_monitoring_interval);
2672 static DEVICE_ATTR(current_avg_interval, S_IWUSR | S_IRUGO,
2673 show_current_avg_interval, set_current_avg_interval);
2674 static DEVICE_ATTR(wakelock_enable, S_IWUSR | S_IRUGO,
2675 show_wakelock_enable, set_wakelock_enable);
2676 static DEVICE_ATTR(bsi, S_IRUGO, show_bsi, NULL);
2677 static DEVICE_ATTR(stat1, S_IRUGO, show_stat1, NULL);
2678 static DEVICE_ATTR(status_int1, S_IRUGO, show_status_int1, NULL);
2679 static DEVICE_ATTR(status_int2, S_IRUGO, show_status_int2, NULL);
2681 static struct attribute *twl6030_bci_attributes[] = {
2682 &dev_attr_fg_mode.attr,
2683 &dev_attr_charge_src.attr,
2684 &dev_attr_vbus_voltage.attr,
2685 &dev_attr_id_level.attr,
2686 &dev_attr_watchdog.attr,
2687 &dev_attr_fg_counter.attr,
2688 &dev_attr_fg_accumulator.attr,
2689 &dev_attr_fg_offset.attr,
2690 &dev_attr_fg_clear.attr,
2691 &dev_attr_fg_cal.attr,
2692 &dev_attr_charging.attr,
2693 &dev_attr_regulation_voltage.attr,
2694 &dev_attr_termination_current.attr,
2695 &dev_attr_cin_limit.attr,
2696 &dev_attr_charge_current.attr,
2697 &dev_attr_min_vbus.attr,
2698 &dev_attr_monitoring_interval.attr,
2699 &dev_attr_current_avg_interval.attr,
2701 &dev_attr_stat1.attr,
2702 &dev_attr_status_int1.attr,
2703 &dev_attr_status_int2.attr,
2704 &dev_attr_wakelock_enable.attr,
2708 static const struct attribute_group twl6030_bci_attr_group = {
2709 .attrs = twl6030_bci_attributes,
2712 static char *twl6030_bci_supplied_to[] = {
2716 extern int dwc_vbus_status(void);
2718 static void twl6030_battery_update_status(struct twl6030_bci_device_info *di)
2720 power_supply_changed(&di->bat);
2721 power_supply_changed(&di->usb);
2722 power_supply_changed(&di->ac);
2725 static void twl6030_battery_work(struct work_struct *work)
2728 struct twl6030_bci_device_info *di = container_of(work, struct twl6030_bci_device_info, work.work);
2729 twl6030_battery_update_status(di);
2730 //set charging current
2731 twl_i2c_write_u8(TWL6030_MODULE_CHARGER,0x00,CHARGERUSB_CTRL1);
2732 if(2 == dwc_vbus_status()){
2733 twl_i2c_write_u8(TWL6030_MODULE_CHARGER, 0x2e,CHARGERUSB_CINLIMIT); //set vbus input current is 1.5A
2734 twl_i2c_write_u8(TWL6030_MODULE_CHARGER, 0x0b,CHARGERUSB_VICHRG); //set mos output current is 1A
2736 else if(1 == dwc_vbus_status()){
2737 twl_i2c_write_u8(TWL6030_MODULE_CHARGER, 0x2e,CHARGERUSB_CINLIMIT);//set vbus input current is 500ma
2738 twl_i2c_write_u8(TWL6030_MODULE_CHARGER, 0x09,CHARGERUSB_VICHRG); //set mos output current is 500ma
2740 /* reschedule for the next time */
2741 queue_delayed_work(di->freezable_work, &di->work, di->interval);
2744 static int __devinit twl6030_bci_battery_probe(struct platform_device *pdev)
2746 struct twl4030_bci_platform_data *pdata = pdev->dev.platform_data;
2747 struct twl6030_bci_device_info *di;
2750 u8 controller_stat = 0;
2751 u8 chargerusb_ctrl1 = 0;
2754 //printk("%s\n", __func__);
2756 dev_info(&pdev->dev, "platform_data not available\n");
2760 di = kzalloc(sizeof(*di), GFP_KERNEL);
2764 di->platform_data = kmemdup(pdata, sizeof(*pdata), GFP_KERNEL);
2765 if (!di->platform_data) {
2770 if (pdata->monitoring_interval == 0) {
2771 di->monitoring_interval = 10;
2772 di->current_avg_interval = 10;
2774 di->monitoring_interval = pdata->monitoring_interval;
2775 di->current_avg_interval = pdata->monitoring_interval;
2778 di->platform_data = pdata;
2779 di->features = pdata->features;
2780 di->dev = &pdev->dev;
2783 // printk("di->feature = %d, TWL6032_SUBCLASS = %d\n",di->features,TWL6032_SUBCLASS);
2784 if (di->features & TWL6032_SUBCLASS) {
2785 ret = twl_i2c_read_u8(TWL_MODULE_RTC, ®, CHARGER_MODE_REG);
2787 goto temp_setup_fail;
2789 if (reg & CHARGER_MODE_POWERPATH) {
2790 dev_dbg(di->dev, "Charger: PowerPath\n");
2791 di->use_power_path = 1;
2793 dev_dbg(di->dev, "Charger: NON PowerPath\n");
2794 di->use_power_path = 0;
2797 if (reg & CHARGER_MODE_AUTOCHARGE) {
2798 dev_dbg(di->dev, "Charger: AutoCharge\n");
2799 di->use_hw_charger = 1;
2801 dev_dbg(di->dev, "Charger: NON AutoCharge\n");
2802 di->use_hw_charger = 0;
2805 di->use_power_path = 0;
2806 di->use_hw_charger = 0;
2808 // printk("di->feature = %d, TWL6032_SUBCLASS = %d,di->use_hw_charger =%d \n",di->features,TWL6032_SUBCLASS,di->use_hw_charger );
2811 if (di->use_hw_charger) {
2812 di->platform_data->max_charger_currentmA =
2813 twl6030_get_limit2_reg(di);
2814 di->platform_data->max_charger_voltagemV =
2815 twl6030_get_limit1_reg(di);
2816 di->platform_data->termination_currentmA =
2817 twl6030_get_iterm_reg(di);
2818 di->platform_data->max_bat_voltagemV =
2819 twl6030_get_voreg_reg(di);
2821 // printk("max_charger_currentmA = %d, max_charger_voltagemV = %d\n,termination_currentmA =%d, max_bat_voltagemV =%d \n",di->platform_data->max_charger_currentmA ,
2822 // di->platform_data->max_charger_voltagemV,di->platform_data->termination_currentmA, di->platform_data->max_bat_voltagemV);
2823 di->bat.name = "twl6030_battery";
2824 di->bat.supplied_to = twl6030_bci_supplied_to;
2825 di->bat.num_supplicants = ARRAY_SIZE(twl6030_bci_supplied_to);
2826 di->bat.type = POWER_SUPPLY_TYPE_BATTERY;
2827 di->bat.properties = twl6030_bci_battery_props;
2828 di->bat.num_properties = ARRAY_SIZE(twl6030_bci_battery_props);
2829 di->bat.get_property = twl6030_bci_battery_get_property;
2830 //di->bat.external_power_changed =
2831 // twl6030_bci_battery_external_power_changed;
2832 di->bat_health = POWER_SUPPLY_HEALTH_GOOD;
2834 di->usb.name = "twl6030_usb";
2835 di->usb.type = POWER_SUPPLY_TYPE_USB;
2836 di->usb.properties = twl6030_usb_props;
2837 di->usb.num_properties = ARRAY_SIZE(twl6030_usb_props);
2838 di->usb.get_property = twl6030_usb_get_property;
2840 di->ac.name = "twl6030_ac";
2841 di->ac.type = POWER_SUPPLY_TYPE_MAINS;
2842 di->ac.properties = twl6030_ac_props;
2843 di->ac.num_properties = ARRAY_SIZE(twl6030_ac_props);
2844 di->ac.get_property = twl6030_ac_get_property;
2846 di->charge_status = POWER_SUPPLY_STATUS_DISCHARGING;
2848 di->bk_bat.name = "twl6030_bk_battery";
2849 di->bk_bat.type = POWER_SUPPLY_TYPE_BATTERY;
2850 di->bk_bat.properties = twl6030_bk_bci_battery_props;
2851 di->bk_bat.num_properties = ARRAY_SIZE(twl6030_bk_bci_battery_props);
2852 di->bk_bat.get_property = twl6030_bk_bci_battery_get_property;
2854 di->vac_priority = 2;
2856 di->capacity_debounce_count = 0;
2857 di->ac_next_refresh = jiffies - 1;
2858 platform_set_drvdata(pdev, di);
2860 /* calculate current max scale from sense */
2861 if (pdata->sense_resistor_mohm) {
2862 di->current_max_scale = (62000) / pdata->sense_resistor_mohm;
2864 /* Set sensible defaults if platform data is missing */
2865 if (di->features & TWL6032_SUBCLASS)
2866 di->current_max_scale = 3100;
2868 di->current_max_scale = 6200;
2871 wake_lock_init(&chrg_lock, WAKE_LOCK_SUSPEND, "ac_chrg_wake_lock");
2872 /* settings for temperature sensing */
2873 ret = twl6030battery_temp_setup(true);
2875 goto temp_setup_fail;
2877 /* request charger fault interruption choosing between sw/hw mode */
2878 irq = platform_get_irq(pdev, 1);
2879 if (!di->use_hw_charger)
2880 ret = request_threaded_irq(irq, NULL,
2881 twl6030charger_fault_interrupt,
2882 0, "twl_bci_fault", di);
2884 ret = request_threaded_irq(irq, NULL,
2885 twl6032charger_fault_interrupt_hw,
2886 0, "twl_bci_fault", di);
2889 dev_info(&pdev->dev, "could not request irq %d, status %d\n",
2891 goto temp_setup_fail;
2894 /* request charger ctrl interruption choosing between sw/hw mode */
2895 irq = platform_get_irq(pdev, 0);
2896 if (!di->use_hw_charger)
2897 ret = request_threaded_irq(irq, NULL,
2898 twl6030charger_ctrl_interrupt,
2899 0, "twl_bci_ctrl", di);
2901 ret = request_threaded_irq(irq, NULL,
2902 twl6032charger_ctrl_interrupt_hw,
2903 0, "twl_bci_ctrl", di); // Ò»Ö±ÔÚ¼ì²âµç³ØµÄ״̬
2906 dev_info(&pdev->dev, "could not request irq %d, status %d\n",
2911 ret = power_supply_register(&pdev->dev, &di->bat);
2913 dev_info(&pdev->dev, "failed to register main battery\n");
2917 ret = power_supply_register(&pdev->dev, &di->usb);
2919 dev_info(&pdev->dev, "failed to register usb power supply\n");
2923 ret = power_supply_register(&pdev->dev, &di->ac);
2925 dev_info(&pdev->dev, "failed to register ac power supply\n");
2929 ret = power_supply_register(&pdev->dev, &di->bk_bat);
2931 dev_info(&pdev->dev, "failed to register backup battery\n");
2932 goto bk_batt_failed;
2937 //di->freezable_work = create_freezable_workqueue("battery");
2939 if (di->features & TWL6032_SUBCLASS) {
2940 di->charger_incurrentmA = 1000;
2941 di->gpadc_vbat_chnl = TWL6032_GPADC_VBAT_CHNL;
2943 di->charger_incurrentmA = twl6030_get_usb_max_power(di->otg);
2944 di->gpadc_vbat_chnl = TWL6030_GPADC_VBAT_CHNL;
2949 ret = twl6030battery_voltage_setup(di);
2951 dev_info(&pdev->dev, "voltage measurement setup failed\n");
2953 ret = twl6030battery_current_setup(true);
2955 dev_info(&pdev->dev, "current measurement setup failed\n");
2958 di->voltage_mV = twl6030_get_gpadc_conversion(di, di->gpadc_vbat_chnl);
2959 di->voltage_mV = twl6030_get_gpadc_conversion(di, di->gpadc_vbat_chnl);
2960 di->capacity = twl6030_batt_vol_to_capacity( di);
2961 twl6030battery_current(di);
2963 di->freezable_work = system_freezable_wq;
2964 INIT_DELAYED_WORK(&di->twl6030_bci_monitor_work,
2965 twl6030_bci_battery_work);
2966 queue_delayed_work(di->freezable_work, &di->twl6030_bci_monitor_work, 0);
2968 INIT_DELAYED_WORK_DEFERRABLE(&di->twl6030_current_avg_work,
2969 twl6030_current_avg);
2970 queue_delayed_work(di->freezable_work, &di->twl6030_current_avg_work, 500);
2973 ret = twl6030battery_voltage_setup(di);
2975 dev_info(&pdev->dev, "voltage measurement setup failed\n");
2977 ret = twl6030battery_current_setup(true);
2979 dev_info(&pdev->dev, "current measurement setup failed\n");
2982 ////////////////////////////////////////////////////////////////////////////////////////////////////////////////
2983 /* initialize for USB charging */
2984 if (!di->use_hw_charger) {
2985 twl6030_config_limit1_reg(di, pdata->max_charger_voltagemV);
2986 twl6030_config_limit2_reg(di,
2987 di->platform_data->max_charger_currentmA);
2989 ret = twl_i2c_write_u8(TWL6030_MODULE_CHARGER, MBAT_TEMP,
2990 CONTROLLER_INT_MASK);
2992 goto bk_batt_failed;
2994 ret = twl_i2c_write_u8(TWL6030_MODULE_CHARGER, MASK_MCHARGERUSB_THMREG,
2995 CHARGERUSB_INT_MASK);
2997 goto bk_batt_failed;
2999 ret = twl_i2c_read_u8(TWL6030_MODULE_CHARGER, &controller_stat,
3002 goto bk_batt_failed;
3004 di->stat1 = controller_stat;
3005 di->charger_outcurrentmA = di->platform_data->max_charger_currentmA;
3007 twl6030_set_watchdog(di, 32);
3009 INIT_WORK(&di->usb_work, twl6030_usb_charger_work);
3010 di->nb.notifier_call = twl6030_usb_notifier_call;
3011 di->otg = otg_get_transceiver();
3013 ret = otg_register_notifier(di->otg, &di->nb);
3015 dev_err(&pdev->dev, "otg register notifier"
3016 " failed %d\n", ret);
3018 dev_err(&pdev->dev, "otg_get_transceiver failed %d\n", ret);
3021 if (di->features & TWL6032_SUBCLASS) {
3022 di->charger_incurrentmA = 1000;
3023 di->gpadc_vbat_chnl = TWL6032_GPADC_VBAT_CHNL;
3025 di->charger_incurrentmA = twl6030_get_usb_max_power(di->otg);
3026 di->gpadc_vbat_chnl = TWL6030_GPADC_VBAT_CHNL;
3029 di->voltage_mV = twl6030_get_gpadc_conversion(di, di->gpadc_vbat_chnl);
3030 dev_info(&pdev->dev, "Battery Voltage at Bootup is %d mV\n",
3033 ret = twl_i2c_read_u8(TWL6030_MODULE_ID0, &hw_state, STS_HW_CONDITIONS);
3035 goto bk_batt_failed;
3036 if (!is_battery_present(di)) {
3037 if (!(hw_state & STS_USB_ID)) {
3038 dev_dbg(di->dev, "Put USB in HZ mode\n");
3039 ret = twl_i2c_read_u8(TWL6030_MODULE_CHARGER,
3040 &chargerusb_ctrl1, CHARGERUSB_CTRL1);
3042 goto bk_batt_failed;
3044 chargerusb_ctrl1 |= HZ_MODE; // high-impedance
3045 ret = twl_i2c_write_u8(TWL6030_MODULE_CHARGER,
3046 chargerusb_ctrl1, CHARGERUSB_CTRL1);
3048 goto bk_batt_failed;
3050 } else if (!di->use_hw_charger) {
3051 if (controller_stat & VAC_DET) {
3052 di->ac_online = POWER_SUPPLY_TYPE_MAINS;
3053 twl6030_start_ac_charger(di);
3054 } else if (controller_stat & VBUS_DET) {
3056 * In HOST mode (ID GROUND) with a device connected,
3057 * do no enable usb charging
3059 if (!(hw_state & STS_USB_ID)) {
3060 di->usb_online = POWER_SUPPLY_TYPE_USB;
3061 di->charger_source = POWER_SUPPLY_TYPE_USB;
3063 POWER_SUPPLY_STATUS_CHARGING;
3064 di->event = USB_EVENT_VBUS;
3065 schedule_work(&di->usb_work);
3069 int fault, charge_usb, charge_ac;
3071 twl_i2c_read_u8(TWL6032_MODULE_CHARGER, ®,
3072 CHARGERUSB_INT_STATUS);
3074 fault = !(di->stat1 & CONTROLLER_STAT1_LINCH_GATED) &&
3075 !(di->stat1 & CONTROLLER_STAT1_FAULT_WDG);
3076 charge_usb = (di->stat1 & VBUS_DET) &&
3077 !(reg & CHARGERUSB_FAULT);
3078 charge_ac = (di->stat1 & VAC_DET) &&
3079 !(di->stat1 & CONTROLLER_STAT1_EXTCHRG_STATZ);
3081 dev_dbg(di->dev, "boot charge state fault %d, usb %d, ac %d\n",
3082 fault, charge_usb, charge_ac);
3084 if (fault && (charge_usb || charge_ac))
3085 di->charge_status = POWER_SUPPLY_STATUS_CHARGING;
3087 if (di->stat1 & (VBUS_DET | VAC_DET))
3089 POWER_SUPPLY_STATUS_NOT_CHARGING;
3092 POWER_SUPPLY_STATUS_DISCHARGING;
3096 di->interval = msecs_to_jiffies(1 * 1000);
3097 INIT_DELAYED_WORK(&di->work, twl6030_battery_work);
3098 queue_delayed_work(di->freezable_work, &di->work, 1*HZ);
3100 ret = twl6030backupbatt_setup();
3102 dev_info(&pdev->dev, "Backup Bat charging setup failed\n");
3104 twl6030_interrupt_unmask(TWL6030_CHARGER_CTRL_INT_MASK,
3105 REG_INT_MSK_LINE_C);
3106 twl6030_interrupt_unmask(TWL6030_CHARGER_CTRL_INT_MASK,
3108 twl6030_interrupt_unmask(TWL6030_CHARGER_FAULT_INT_MASK,
3109 REG_INT_MSK_LINE_C);
3110 twl6030_interrupt_unmask(TWL6030_CHARGER_FAULT_INT_MASK,
3113 ret = sysfs_create_group(&pdev->dev.kobj, &twl6030_bci_attr_group);
3115 dev_info(&pdev->dev, "could not create sysfs files\n");
3120 cancel_delayed_work(&di->twl6030_bci_monitor_work);
3121 power_supply_unregister(&di->ac);
3123 power_supply_unregister(&di->usb);
3125 power_supply_unregister(&di->bat);
3129 irq = platform_get_irq(pdev, 1);
3132 wake_lock_destroy(&chrg_lock);
3133 platform_set_drvdata(pdev, NULL);
3139 static int __devexit twl6030_bci_battery_remove(struct platform_device *pdev)
3141 struct twl6030_bci_device_info *di = platform_get_drvdata(pdev);
3144 twl6030_interrupt_mask(TWL6030_CHARGER_CTRL_INT_MASK,
3145 REG_INT_MSK_LINE_C);
3146 twl6030_interrupt_mask(TWL6030_CHARGER_CTRL_INT_MASK,
3148 twl6030_interrupt_mask(TWL6030_CHARGER_FAULT_INT_MASK,
3149 REG_INT_MSK_LINE_C);
3150 twl6030_interrupt_mask(TWL6030_CHARGER_FAULT_INT_MASK,
3153 irq = platform_get_irq(pdev, 0);
3156 irq = platform_get_irq(pdev, 1);
3159 otg_unregister_notifier(di->otg, &di->nb);
3160 sysfs_remove_group(&pdev->dev.kobj, &twl6030_bci_attr_group);
3161 cancel_delayed_work(&di->twl6030_bci_monitor_work);
3162 cancel_delayed_work(&di->twl6030_current_avg_work);
3163 flush_scheduled_work();
3164 power_supply_unregister(&di->bat);
3165 power_supply_unregister(&di->usb);
3166 power_supply_unregister(&di->ac);
3167 power_supply_unregister(&di->bk_bat);
3168 wake_lock_destroy(&chrg_lock);
3169 platform_set_drvdata(pdev, NULL);
3170 kfree(di->platform_data);
3177 static int twl6030_bci_battery_suspend(struct device *dev)
3179 // struct platform_device *pdev = to_platform_device(dev);
3180 // struct twl6030_bci_device_info *di = platform_get_drvdata(pdev);
3185 /* mask to prevent wakeup due to 32s timeout from External charger */
3186 ret = twl_i2c_read_u8(TWL6030_MODULE_CHARGER, &rd_reg,
3187 CONTROLLER_INT_MASK);
3191 rd_reg |= MVAC_FAULT;
3192 ret = twl_i2c_write_u8(TWL6030_MODULE_CHARGER, MBAT_TEMP,
3193 CONTROLLER_INT_MASK);
3197 //cancel_delayed_work(&di->work);
3198 //cancel_delayed_work(&di->twl6030_bci_monitor_work);
3199 //cancel_delayed_work(&di->twl6030_current_avg_work);
3201 /* We cannot tolarate a sleep longer than 30 seconds
3202 * while on ac charging we have to reset the BQ watchdog timer.
3204 // if ((di->charger_source == POWER_SUPPLY_TYPE_MAINS) &&
3205 // ((wakeup_timer_seconds > 25) || !wakeup_timer_seconds)) {
3206 // wakeup_timer_seconds = 25;
3209 /*reset the BQ watch dog*/
3210 events = BQ2415x_RESET_TIMER;
3211 blocking_notifier_call_chain(¬ifier_list, events, NULL);
3213 ret = twl6030battery_temp_setup(false);
3215 pr_err("%s: Temp measurement setup failed (%d)!\n",
3220 ret = twl6030battery_current_setup(false);
3222 pr_err("%s: Current measurement setup failed (%d)!\n",
3229 pr_err("%s: Error access to TWL6030 (%d)\n", __func__, ret);
3233 static int twl6030_bci_battery_resume(struct device *dev)
3235 // struct platform_device *pdev = to_platform_device(dev);
3236 // struct twl6030_bci_device_info *di = platform_get_drvdata(pdev);
3241 ret = twl6030battery_temp_setup(true);
3243 pr_err("%s: Temp measurement setup failed (%d)!\n",
3248 ret = twl6030battery_current_setup(true);
3250 pr_err("%s: Current measurement setup failed (%d)!\n",
3255 ret = twl_i2c_read_u8(TWL6030_MODULE_CHARGER, &rd_reg, CONTROLLER_INT_MASK);
3259 rd_reg &= ~(0xFF & MVAC_FAULT);
3260 ret = twl_i2c_write_u8(TWL6030_MODULE_CHARGER, MBAT_TEMP,
3261 CONTROLLER_INT_MASK);
3265 //queue_delayed_work(di->freezable_work, &di->twl6030_bci_monitor_work, 0);
3266 //queue_delayed_work(di->freezable_work, &di->twl6030_current_avg_work, 50);
3267 //queue_delayed_work(di->freezable_work, &di->work, di->interval);
3269 events = BQ2415x_RESET_TIMER;
3270 blocking_notifier_call_chain(¬ifier_list, events, NULL);
3274 pr_err("%s: Error access to TWL6030 (%d)\n", __func__, ret);
3278 #define twl6030_bci_battery_suspend NULL
3279 #define twl6030_bci_battery_resume NULL
3280 #endif /* CONFIG_PM */
3282 static const struct dev_pm_ops pm_ops = {
3283 .suspend = twl6030_bci_battery_suspend,
3284 .resume = twl6030_bci_battery_resume,
3287 static struct platform_driver twl6030_bci_battery_driver = {
3288 .probe = twl6030_bci_battery_probe,
3289 .remove = __devexit_p(twl6030_bci_battery_remove),
3291 .name = "twl6030_bci",
3296 static int __init twl6030_battery_init(void)
3298 return platform_driver_register(&twl6030_bci_battery_driver);
3300 module_init(twl6030_battery_init);
3302 static void __exit twl6030_battery_exit(void)
3304 platform_driver_unregister(&twl6030_bci_battery_driver);
3306 module_exit(twl6030_battery_exit);
3308 MODULE_LICENSE("GPL");
3309 MODULE_ALIAS("platform:twl6030_bci");
3310 MODULE_AUTHOR("Texas Instruments Inc");