Index: linux-2.6.37/drivers/cbus/Kconfig
===================================================================
---- linux-2.6.37.orig/drivers/cbus/Kconfig 2011-01-28 22:33:39.703215389 +0100
-+++ linux-2.6.37/drivers/cbus/Kconfig 2011-01-28 23:41:57.094298060 +0100
+--- linux-2.6.37.orig/drivers/cbus/Kconfig 2011-02-06 00:24:48.502005279 +0100
++++ linux-2.6.37/drivers/cbus/Kconfig 2011-02-06 00:24:48.550008091 +0100
@@ -94,4 +94,12 @@
to Retu/Vilma. Detection state and events are exposed through
sysfs.
endmenu
Index: linux-2.6.37/drivers/cbus/Makefile
===================================================================
---- linux-2.6.37.orig/drivers/cbus/Makefile 2011-01-28 22:33:39.694216931 +0100
-+++ linux-2.6.37/drivers/cbus/Makefile 2011-01-28 22:33:39.754206648 +0100
+--- linux-2.6.37.orig/drivers/cbus/Makefile 2011-02-06 00:24:48.493004751 +0100
++++ linux-2.6.37/drivers/cbus/Makefile 2011-02-06 00:24:48.550008091 +0100
@@ -12,3 +12,6 @@
obj-$(CONFIG_CBUS_TAHVO_USER) += tahvo-user.o
obj-$(CONFIG_CBUS_RETU_USER) += retu-user.o
Index: linux-2.6.37/drivers/cbus/n810bm_main.c
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
-+++ linux-2.6.37/drivers/cbus/n810bm_main.c 2011-01-28 23:41:23.510064352 +0100
-@@ -0,0 +1,562 @@
++++ linux-2.6.37/drivers/cbus/n810bm_main.c 2011-02-06 13:36:49.581078785 +0100
+@@ -0,0 +1,959 @@
+/*
+ * Nokia n810 battery management
+ *
+ * GNU General Public License for more details.
+ */
+
++#define DEBUG
++
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/spinlock.h>
+#include <linux/timer.h>
+#include <linux/reboot.h>
++#include <linux/firmware.h>
+
+#include "retu.h"
+#include "tahvo.h"
+#include "lipocharge.h"
+
+
-+#define N810BM_CHECK_INTERVAL (HZ * 5)
++#define N810BM_PMM_BLOCK_FILENAME "n810-cal-bme-pmm.fw"
++#define N810BM_PMM_BLOCK_SIZE 0x600
++
++#define N810BM_CHECK_INTERVAL (HZ * 2)
+#define N810BM_MIN_VOLTAGE_THRES 3300 /* Absolute minimum voltage threshold */
+
+
+
+
+enum n810bm_capacity {
-+ N810BM_CAP_UNKNOWN = 0,
++ N810BM_CAP_UNKNOWN = -1,
++ N810BM_CAP_NONE = 0,
+ N810BM_CAP_1500MAH = 1500, /* 1500 mAh battery */
+};
+
+struct n810bm {
++ bool battery_present; /* A battery is inserted */
++ bool charger_present; /* The charger is connected */
++ enum n810bm_capacity capacity; /* The capacity of the inserted battery (if any) */
++
++ bool charger_enabled; /* Want to charge? */ //TODO
++ struct lipocharge charger; /* Charger subsystem */
++
+ struct platform_device *pdev;
++ const struct firmware *pmm_block; /* CAL PMM block */
+
-+ enum n810bm_capacity capacity;
+ struct timer_list check_timer;
+
-+ struct lipocharge *charger;
-+
++ bool initialized; /* The hardware was initialized */
+ spinlock_t lock;
+};
+
+
++static inline struct n810bm * device_to_n810bm(struct device *dev)
++{
++ struct platform_device *pdev = to_platform_device(dev);
++ struct n810bm *bm = platform_get_drvdata(pdev);
++
++ return bm;
++}
++
+static NORET_TYPE void n810bm_emergency(struct n810bm *bm, const char *message) ATTRIB_NORET;
+static void n810bm_emergency(struct n810bm *bm, const char *message)
+{
+ panic("n810bm: Failed to halt machine in emergency state\n");
+}
+
-+#if 0
++static u16 tahvo_read(struct n810bm *bm, unsigned int reg)
++{
++ int ret;
++ unsigned long flags;
++
++ spin_lock_irqsave(&tahvo_lock, flags);
++ ret = tahvo_read_reg(reg);
++ spin_unlock_irqrestore(&tahvo_lock, flags);
++ if (ret < 0 || ret > 0xFFFF)
++ n810bm_emergency(bm, "tahvo_read");
++
++ return ret;
++}
++
++static void tahvo_maskset(struct n810bm *bm, unsigned int reg, u16 mask, u16 set)
++{
++ int ret;
++ unsigned long flags;
++ u16 value;
++
++ spin_lock_irqsave(&tahvo_lock, flags);
++ if (~mask) {
++ ret = tahvo_read_reg(reg);
++ if (ret < 0 || ret > 0xFFFF)
++ goto fatal_unlock;
++ value = ret;
++ } else
++ value = 0;
++ value &= ~mask;
++ value |= set;
++ ret = tahvo_write_reg(reg, value);
++ if (ret)
++ goto fatal_unlock;
++ spin_unlock_irqrestore(&tahvo_lock, flags);
++
++ return;
++
++fatal_unlock:
++ spin_unlock_irqrestore(&tahvo_lock, flags);
++ n810bm_emergency(bm, "tahvo_maskset");
++}
++
++static inline void tahvo_write(struct n810bm *bm, unsigned int reg, u16 value)
++{
++ tahvo_maskset(bm, reg, 0xFFFF, value);
++}
++
++static inline void tahvo_set(struct n810bm *bm, unsigned int reg, u16 mask)
++{
++ tahvo_maskset(bm, reg, mask, mask);
++}
++
++static inline void tahvo_clear(struct n810bm *bm, unsigned int reg, u16 mask)
++{
++ tahvo_maskset(bm, reg, mask, 0);
++}
++
+static u16 retu_read(struct n810bm *bm, unsigned int reg)
+{
+ int ret;
+
+ return ret;
+}
-+#endif
+
+static void retu_maskset(struct n810bm *bm, unsigned int reg, u16 mask, u16 set)
+{
+
+static inline void retu_write(struct n810bm *bm, unsigned int reg, u16 value)
+{
-+ return retu_maskset(bm, reg, 0xFFFF, value);
++ retu_maskset(bm, reg, 0xFFFF, value);
+}
+
+static int retu_adc_average(struct n810bm *bm, unsigned int chan,
+ return value;
+}
+
++/* Set the current measure timer that triggers on Tahvo IRQ 7 */
++static void n810bm_set_current_measure_timer(struct n810bm *bm,
++ u16 millisec_interval)
++{
++ u16 value = millisec_interval;
++
++ if (value <= 0xF905) {
++ value = ((u64)0x10624DD3 * (u64)(value + 0xF9)) >> 32;
++ value /= 16;
++ } else
++ value = 0xFF;
++
++ tahvo_write(bm, TAHVO_REG_BATCURRTIMER, value & 0xFF);
++
++ tahvo_set(bm, TAHVO_REG_CHGCTL,
++ TAHVO_REG_CHGCTL_CURTIMRST);
++ tahvo_clear(bm, TAHVO_REG_CHGCTL,
++ TAHVO_REG_CHGCTL_CURTIMRST);
++}
++
++static void n810bm_enable_current_measure(struct n810bm *bm, bool slow, bool irq)
++{
++ u16 millisec_interval;
++
++ if (slow)
++ millisec_interval = 1000;
++ else
++ millisec_interval = 250;
++
++ /* Enable the current measurement circuitry */
++ tahvo_set(bm, TAHVO_REG_CHGCTL,
++ TAHVO_REG_CHGCTL_CURMEAS);
++
++ /* Setup the measurement timer */
++ n810bm_set_current_measure_timer(bm, millisec_interval);
++ if (irq)
++ tahvo_enable_irq(TAHVO_INT_BATCURR);
++
++ //TODO also do a software timer for safety.
++}
++
++static void n810bm_disable_current_measure(struct n810bm *bm)
++{
++ /* Disable the measurement timer */
++ n810bm_set_current_measure_timer(bm, 0);
++ tahvo_disable_irq(TAHVO_INT_BATCURR);
++
++ /* Disable the current measurement circuitry */
++ tahvo_clear(bm, TAHVO_REG_CHGCTL,
++ TAHVO_REG_CHGCTL_CURMEAS);
++}
++
++/* Measure the actual battery current. Returns a signed value in mA.
++ * Does only work, if current measurement was enabled. */
++static int n810bm_measure_batt_current(struct n810bm *bm)
++{
++ u16 retval;
++ int adc = 0, ma, i;
++
++ for (i = 0; i < 3; i++) {
++ retval = tahvo_read(bm, TAHVO_REG_BATCURR);
++ adc += (s16)retval; /* Value is signed */
++ }
++ adc /= 3;
++
++ //TODO convert to mA
++ ma = adc;
++
++ return ma;
++}
++
+static int adc_sanity_check(struct n810bm *bm, unsigned int channel)
+{
+ int value;
+ channel);
+ return -EIO;
+ }
-+ dev_info(&bm->pdev->dev,
-+ "GND ADC channel %u sanity check got value: %d",
-+ channel, value);
++ dev_dbg(&bm->pdev->dev,
++ "GND ADC channel %u sanity check got value: %d",
++ channel, value);
+ if (value > 5) {
+ n810bm_emergency(bm, "GND ADC sanity check failed");
+ return -EIO;
+ return percent;
+}
+
++/* Periodic check */
+static void n810bm_check_timer(unsigned long data)
+{
+ struct n810bm *bm = (struct n810bm *)data;
+ unsigned long flags;
++ u16 status;
++ bool battery_was_present, charger_was_present;
++ bool force_charge = 0;
+ int mv;
+
+ spin_lock_irqsave(&bm->lock, flags);
+
-+ mv = n810bm_measure_batt_voltage(bm);
-+ if (mv < 0)
-+ n810bm_emergency(bm, "check timer: Failed to measure");
-+ if (mv < N810BM_MIN_VOLTAGE_THRES)
-+ n810bm_emergency(bm, "check timer: Minimum voltage threshold reached");
++ status = retu_read(bm, RETU_REG_STATUS);
++ battery_was_present = bm->battery_present;
++ charger_was_present = bm->charger_present;
++ bm->battery_present = !!(status & RETU_REG_STATUS_BATAVAIL);
++ bm->charger_present = !!(status & RETU_REG_STATUS_CHGPLUG);
++
++ if (bm->battery_present != battery_was_present) {
++ /* Battery state changed */
++ if (bm->battery_present) {
++ bm->capacity = n810bm_read_batt_capacity(bm);
++ if (bm->capacity == N810BM_CAP_UNKNOWN) {
++ dev_err(&bm->pdev->dev, "Unknown battery detected");
++ } else {
++ dev_info(&bm->pdev->dev, "Detected %u mAh battery",
++ (unsigned int)bm->capacity);
++ }
++ } else {
++ bm->capacity = N810BM_CAP_NONE;
++ dev_info(&bm->pdev->dev, "The main battery was removed");
++ //TODO what do if charging?
++ }
++ }
++
++ if (bm->charger_present != charger_was_present) {
++ /* Charger state changed */
++ dev_info(&bm->pdev->dev, "The charger was %s",
++ bm->charger_present ? "plugged in" : "removed");
++ }
++
++ if (bm->battery_present && !lipocharge_is_charging(&bm->charger)) {
++ mv = n810bm_measure_batt_voltage(bm);
++ if (mv < 0)
++ n810bm_emergency(bm, "check timer: Failed to measure");
++ if (!bm->charger_present) {
++ if (mv < N810BM_MIN_VOLTAGE_THRES) {
++ n810bm_emergency(bm, "check timer: "
++ "Minimum voltage threshold reached");
++ }
++ force_charge = 1;
++ }
++ }
++
++ if (bm->charger_present && bm->battery_present) {
++ if (bm->charger_enabled || force_charge) {
++ if (!lipocharge_is_charging(&bm->charger)) {
++ //TODO start charging, if battery is below some threshold
++ }
++ }
++ }
+
+ mod_timer(&bm->check_timer, round_jiffies(jiffies + N810BM_CHECK_INTERVAL));
+ spin_unlock_irqrestore(&bm->lock, flags);
+
+static void n810bm_adc_irq_handler(unsigned long data)
+{
-+// struct n810bm *bm = (struct n810bm *)data;
++ struct n810bm *bm = (struct n810bm *)data;
+
+ retu_ack_irq(RETU_INT_ADCS);
+ //TODO
-+printk("n810bm: ADC timer triggered\n");
++dev_dbg(&bm->pdev->dev, "ADC interrupt triggered\n");
++}
++
++static void n810bm_tahvo_current_measure_irq_handler(unsigned long data)
++{
++ struct n810bm *bm = (struct n810bm *)data;
++
++ tahvo_ack_irq(TAHVO_INT_BATCURR);
++ //TODO
++dev_dbg(&bm->pdev->dev, "Tahvo measure IRQ triggered\n");
+}
+
++#define DEFINE_SHOW_INT_FUNC(name, member) \
++ static ssize_t n810bm_##name##_show(struct device *dev, \
++ struct device_attribute *attr, \
++ char *buf) \
++ { \
++ struct n810bm *bm = device_to_n810bm(dev); \
++ ssize_t count; \
++ \
++ spin_lock_irq(&bm->lock); \
++ count = snprintf(buf, PAGE_SIZE, "%d\n", (int)(bm->member)); \
++ spin_unlock_irq(&bm->lock); \
++ \
++ return count; \
++ }
++
++#define DEFINE_STORE_INT_FUNC(name, member) \
++ static ssize_t n810bm_##name##_store(struct device *dev, \
++ struct device_attribute *attr, \
++ const char *buf, size_t count) \
++ { \
++ struct n810bm *bm = device_to_n810bm(dev); \
++ long val; \
++ int err; \
++ \
++ spin_lock_irq(&bm->lock); \
++ err = strict_strtol(buf, 0, &val); \
++ if (!err) \
++ bm->member = (typeof(bm->member))val; \
++ spin_unlock_irq(&bm->lock); \
++ \
++ return err ? err : count; \
++ }
++
++#define DEFINE_ATTR_SHOW_INT(name, member) \
++ DEFINE_SHOW_INT_FUNC(name, member) \
++ static DEVICE_ATTR(name, 0444, n810bm_##name##_show, NULL);
++
++#define DEFINE_ATTR_SHOW_STORE_INT(name, member) \
++ DEFINE_SHOW_INT_FUNC(name, member) \
++ DEFINE_STORE_INT_FUNC(name, member) \
++ static DEVICE_ATTR(name, 0644, n810bm_##name##_show, \
++ n810bm_##name##_store);
++
++DEFINE_ATTR_SHOW_INT(batt_present, battery_present);
++DEFINE_ATTR_SHOW_INT(charger_present, charger_present);
++DEFINE_ATTR_SHOW_STORE_INT(charger_enable, charger_enabled);
++
+static ssize_t n810bm_attr_charge_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
-+ struct platform_device *pdev = to_platform_device(dev);
-+ struct n810bm *bm = platform_get_drvdata(pdev);
++ struct n810bm *bm = device_to_n810bm(dev);
+ int err = -ENODEV;
+ ssize_t count = 0;
+ int millivolt;
+
+ spin_lock_irq(&bm->lock);
-+ millivolt = n810bm_measure_batt_voltage(bm);
-+ if (millivolt >= 0) {
-+ count = snprintf(buf, PAGE_SIZE, "%u\n",
-+ n810bm_mvolt2percent(millivolt));
++ if (bm->battery_present) {
++ millivolt = n810bm_measure_batt_voltage(bm);
++ if (millivolt >= 0) {
++ count = snprintf(buf, PAGE_SIZE, "%u\n",
++ n810bm_mvolt2percent(millivolt));
++ err = 0;
++ }
++ } else {
++ count = snprintf(buf, PAGE_SIZE, "no battery\n");
+ err = 0;
+ }
+ spin_unlock_irq(&bm->lock);
+ struct device_attribute *attr,
+ char *buf)
+{
-+ struct platform_device *pdev = to_platform_device(dev);
-+ struct n810bm *bm = platform_get_drvdata(pdev);
++ struct n810bm *bm = device_to_n810bm(dev);
+ ssize_t count;
+
+ spin_lock_irq(&bm->lock);
-+ count = snprintf(buf, PAGE_SIZE, "%u\n",
-+ (unsigned int)bm->capacity);
++ if (bm->battery_present) {
++ count = snprintf(buf, PAGE_SIZE, "%d\n",
++ (int)bm->capacity);
++ } else
++ count = snprintf(buf, PAGE_SIZE, "no battery\n");
+ spin_unlock_irq(&bm->lock);
+
+ return count;
+ struct device_attribute *attr,
+ char *buf)
+{
-+ struct platform_device *pdev = to_platform_device(dev);
-+ struct n810bm *bm = platform_get_drvdata(pdev);
++ struct n810bm *bm = device_to_n810bm(dev);
+ ssize_t count = 0;
+ int k, err = -ENODEV;
+
+}
+static DEVICE_ATTR(batt_temp, 0444, n810bm_attr_battemp_show, NULL);
+
-+static ssize_t n810bm_attr_charger_voltage(struct device *dev,
-+ struct device_attribute *attr,
-+ char *buf)
++static ssize_t n810bm_attr_charger_voltage_show(struct device *dev,
++ struct device_attribute *attr,
++ char *buf)
+{
-+ struct platform_device *pdev = to_platform_device(dev);
-+ struct n810bm *bm = platform_get_drvdata(pdev);
++ struct n810bm *bm = device_to_n810bm(dev);
+ ssize_t count = 0;
+ int mv, err = -ENODEV;
+
+ spin_lock_irq(&bm->lock);
-+ mv = n810bm_measure_charger_voltage(bm);
-+ if (mv >= 0) {
-+ count = snprintf(buf, PAGE_SIZE, "%d\n", mv);
++ if (bm->charger_present) {
++ mv = n810bm_measure_charger_voltage(bm);
++ if (mv >= 0) {
++ count = snprintf(buf, PAGE_SIZE, "%d\n", mv);
++ err = 0;
++ }
++ } else {
++ count = snprintf(buf, PAGE_SIZE, "no charger\n");
+ err = 0;
+ }
+ spin_unlock_irq(&bm->lock);
+
+ return err ? err : count;
+}
-+static DEVICE_ATTR(charger_voltage, 0444, n810bm_attr_charger_voltage, NULL);
++static DEVICE_ATTR(charger_voltage, 0444, n810bm_attr_charger_voltage_show, NULL);
+
-+static ssize_t n810bm_attr_backup_batt_voltage(struct device *dev,
-+ struct device_attribute *attr,
-+ char *buf)
++static ssize_t n810bm_attr_backup_batt_voltage_show(struct device *dev,
++ struct device_attribute *attr,
++ char *buf)
+{
-+ struct platform_device *pdev = to_platform_device(dev);
-+ struct n810bm *bm = platform_get_drvdata(pdev);
++ struct n810bm *bm = device_to_n810bm(dev);
+ ssize_t count = 0;
+ int mv, err = -ENODEV;
+
+
+ return err ? err : count;
+}
-+static DEVICE_ATTR(backup_batt_voltage, 0444, n810bm_attr_backup_batt_voltage, NULL);
++static DEVICE_ATTR(backup_batt_voltage, 0444, n810bm_attr_backup_batt_voltage_show, NULL);
++
++static ssize_t n810bm_attr_batt_current_show(struct device *dev,
++ struct device_attribute *attr,
++ char *buf)
++{
++ struct n810bm *bm = device_to_n810bm(dev);
++ ssize_t count = 0;
++ int ma;
++
++ spin_lock_irq(&bm->lock);
++ if (bm->battery_present) {
++ ma = n810bm_measure_batt_current(bm);//FIXME
++ count = snprintf(buf, PAGE_SIZE, "%d\n", ma);
++ } else
++ count = snprintf(buf, PAGE_SIZE, "no battery\n");
++ spin_unlock_irq(&bm->lock);
++
++ return count;
++}
++static DEVICE_ATTR(batt_current, 0444, n810bm_attr_batt_current_show, NULL);
++
++//TODO remove this
++static ssize_t n810bm_attr_charger_status_show(struct device *dev,
++ struct device_attribute *attr,
++ char *buf)
++{
++ struct n810bm *bm = device_to_n810bm(dev);
++ ssize_t count = 0;
++ unsigned int stat;
++
++ spin_lock_irq(&bm->lock);
++ stat = retu_read(bm, RETU_REG_STATUS);
++ count = snprintf(buf, PAGE_SIZE, "0x%X\n", stat);
++ spin_unlock_irq(&bm->lock);
++
++ return count;
++}
++static DEVICE_ATTR(charger_status, 0444, n810bm_attr_charger_status_show, NULL);
++
++//TODO remove this
++static ssize_t n810bm_attr_charge_current_show(struct device *dev,
++ struct device_attribute *attr,
++ char *buf)
++{
++ struct n810bm *bm = device_to_n810bm(dev);
++ ssize_t count = 0;
++ unsigned int val;
++
++ spin_lock_irq(&bm->lock);
++ val = tahvo_read(bm, TAHVO_REG_CHGCURR);
++ count = snprintf(buf, PAGE_SIZE, "0x%X\n", val);
++ spin_unlock_irq(&bm->lock);
++
++ return count;
++}
++
++static ssize_t n810bm_attr_charge_current_store(struct device *dev,
++ struct device_attribute *attr,
++ const char *buf, size_t count)
++{
++ struct n810bm *bm = device_to_n810bm(dev);
++ unsigned long val;
++ int err;
++
++ spin_lock_irq(&bm->lock);
++ err = strict_strtoul(buf, 0, &val);
++ if (!err && val <= 0xFF)
++ tahvo_write(bm, TAHVO_REG_CHGCURR, val);
++ spin_unlock_irq(&bm->lock);
++
++ return err ? err : count;
++}
++static DEVICE_ATTR(charge_current, 0644,
++ n810bm_attr_charge_current_show,
++ n810bm_attr_charge_current_store);
++
++static const struct device_attribute *n810bm_attrs[] = {
++ &dev_attr_batt_present,
++ &dev_attr_batt_charge,
++ &dev_attr_batt_current,
++ &dev_attr_batt_capacity,
++ &dev_attr_batt_temp,
++ &dev_attr_backup_batt_voltage,
++ &dev_attr_charger_present,
++ &dev_attr_charger_voltage,
++ &dev_attr_charger_status,
++ &dev_attr_charger_enable,
++ &dev_attr_charge_current,
++};
+
+static void n810bm_hw_exit(struct n810bm *bm)
+{
+ retu_write(bm, RETU_REG_ADCSCR, 0);
++ //TODO
+}
+
+static int n810bm_hw_init(struct n810bm *bm)
+
+ err = n810bm_check_adc_sanity(bm);
+ if (err)
++ return err;
++
++ return 0;
++}
++
++static int n810bm_device_init(struct n810bm *bm)
++{
++ int attr_index;
++ int err;
++
++ err = n810bm_hw_init(bm);
++ if (err)
+ goto error;
-+ bm->capacity = n810bm_read_batt_capacity(bm);
-+ if (bm->capacity == N810BM_CAP_UNKNOWN) {
-+ dev_err(&bm->pdev->dev, "Unknown battery detected");
-+ err = -ENODEV;
-+ goto error;
++ for (attr_index = 0; attr_index < ARRAY_SIZE(n810bm_attrs); attr_index++) {
++ err = device_create_file(&bm->pdev->dev, n810bm_attrs[attr_index]);
++ if (err)
++ goto err_unwind_attrs;
+ }
-+ dev_info(&bm->pdev->dev, "Detected %u mAh battery\n",
-+ (unsigned int)bm->capacity);
++ err = retu_request_irq(RETU_INT_ADCS,
++ n810bm_adc_irq_handler,
++ (unsigned long)bm, "n810bm");
++ if (err)
++ goto err_unwind_attrs;
++ err = tahvo_request_irq(TAHVO_INT_BATCURR,
++ n810bm_tahvo_current_measure_irq_handler,
++ (unsigned long)bm, "n810bm");
++ if (err)
++ goto err_free_retu_irq;
++
++ lipocharge_init(&bm->charger);
++ mod_timer(&bm->check_timer, round_jiffies(jiffies + N810BM_CHECK_INTERVAL));
++
++ bm->initialized = 1;
++ dev_info(&bm->pdev->dev, "Battery management initialized");
+
+ return 0;
+
++err_free_retu_irq:
++ retu_free_irq(RETU_INT_ADCS);
++err_unwind_attrs:
++ for (attr_index--; attr_index >= 0; attr_index--)
++ device_remove_file(&bm->pdev->dev, n810bm_attrs[attr_index]);
++/*err_exit:*/
++ n810bm_hw_exit(bm);
+error:
+ return err;
+}
+
++static void n810bm_device_exit(struct n810bm *bm)
++{
++ int i;
++
++ if (!bm->initialized)
++ return;
++
++ lipocharge_exit(&bm->charger);
++ tahvo_free_irq(TAHVO_INT_BATCURR);
++ retu_free_irq(RETU_INT_ADCS);
++ del_timer_sync(&bm->check_timer);
++ for (i = 0; i < ARRAY_SIZE(n810bm_attrs); i++)
++ device_remove_file(&bm->pdev->dev, n810bm_attrs[i]);
++ n810bm_hw_exit(bm);
++ release_firmware(bm->pmm_block);
++
++ bm->initialized = 0;
++}
++
++static void n810bm_pmm_block_found(const struct firmware *fw, void *context)
++{
++ struct n810bm *bm = context;
++ int err;
++
++ if (!fw) {
++ dev_err(&bm->pdev->dev,
++ "CAL PMM block image file not found");
++ goto error;
++ }
++ if (fw->size != N810BM_PMM_BLOCK_SIZE ||
++ memcmp(fw->data, "BME-PMM-BLOCK01", 15) != 0) {
++ dev_err(&bm->pdev->dev,
++ "CAL PMM block image file has an invalid format");
++ goto error;
++ }
++
++ bm->pmm_block = fw;
++ err = n810bm_device_init(bm);
++ if (err) {
++ dev_err(&bm->pdev->dev,
++ "Failed to initialized battery management (%d)", err);
++ goto error;
++ }
++
++ return;
++error:
++ release_firmware(fw);
++}
++
+static int __devinit n810bm_probe(struct platform_device *pdev)
+{
+ struct n810bm *bm;
+ spin_lock_init(&bm->lock);
+ setup_timer(&bm->check_timer, n810bm_check_timer, (unsigned long)bm);
+
-+ err = n810bm_hw_init(bm);
-+ if (err)
++ dev_info(&bm->pdev->dev, "Requesting CAL BME PMM block firmware file "
++ N810BM_PMM_BLOCK_FILENAME);
++ err = request_firmware_nowait(THIS_MODULE, 1,
++ N810BM_PMM_BLOCK_FILENAME,
++ &bm->pdev->dev, GFP_KERNEL,
++ bm, n810bm_pmm_block_found);
++ if (err) {
++ dev_err(&bm->pdev->dev,
++ "Failed to request CAL PMM block image file (%d)", err);
+ goto err_free;
-+ err = device_create_file(&pdev->dev, &dev_attr_batt_charge);
-+ if (err)
-+ goto err_exit;
-+ err = device_create_file(&pdev->dev, &dev_attr_batt_capacity);
-+ if (err)
-+ goto err_rem_charge;
-+ err = device_create_file(&pdev->dev, &dev_attr_batt_temp);
-+ if (err)
-+ goto err_rem_capa;
-+ err = device_create_file(&pdev->dev, &dev_attr_charger_voltage);
-+ if (err)
-+ goto err_rem_temp;
-+ err = device_create_file(&pdev->dev, &dev_attr_backup_batt_voltage);
-+ if (err)
-+ goto err_rem_chg;
-+ err = retu_request_irq(RETU_INT_ADCS, n810bm_adc_irq_handler,
-+ (unsigned long)bm, "n810bm");
-+ if (err)
-+ goto err_rem_bkup;
-+
-+ mod_timer(&bm->check_timer, round_jiffies(jiffies + N810BM_CHECK_INTERVAL));
-+
-+ dev_info(&pdev->dev, "Battery management initialized");
++ }
+
+ return 0;
+
-+err_rem_bkup:
-+ device_remove_file(&pdev->dev, &dev_attr_backup_batt_voltage);
-+err_rem_chg:
-+ device_remove_file(&pdev->dev, &dev_attr_charger_voltage);
-+err_rem_temp:
-+ device_remove_file(&pdev->dev, &dev_attr_batt_temp);
-+err_rem_capa:
-+ device_remove_file(&pdev->dev, &dev_attr_batt_capacity);
-+err_rem_charge:
-+ device_remove_file(&pdev->dev, &dev_attr_batt_charge);
-+err_exit:
-+ n810bm_hw_exit(bm);
+err_free:
+ kfree(bm);
-+ platform_set_drvdata(pdev, NULL);
++
+ return err;
+}
+
+{
+ struct n810bm *bm = platform_get_drvdata(pdev);
+
-+ retu_free_irq(RETU_INT_ADCS);
-+ del_timer_sync(&bm->check_timer);
-+ device_remove_file(&pdev->dev, &dev_attr_backup_batt_voltage);
-+ device_remove_file(&pdev->dev, &dev_attr_charger_voltage);
-+ device_remove_file(&pdev->dev, &dev_attr_batt_temp);
-+ device_remove_file(&pdev->dev, &dev_attr_batt_capacity);
-+ device_remove_file(&pdev->dev, &dev_attr_batt_charge);
-+ n810bm_hw_exit(bm);
++ n810bm_device_exit(bm);
+
+ kfree(bm);
+ platform_set_drvdata(pdev, NULL);
+module_exit(n810bm_modexit);
+
+MODULE_DESCRIPTION("Nokia n810 battery management");
++MODULE_FIRMWARE(N810BM_PMM_BLOCK_FILENAME);
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Michael Buesch");
Index: linux-2.6.37/drivers/cbus/retu.c
===================================================================
---- linux-2.6.37.orig/drivers/cbus/retu.c 2011-01-28 22:33:39.695216760 +0100
-+++ linux-2.6.37/drivers/cbus/retu.c 2011-01-28 22:33:39.754206648 +0100
+--- linux-2.6.37.orig/drivers/cbus/retu.c 2011-02-06 00:24:48.493004751 +0100
++++ linux-2.6.37/drivers/cbus/retu.c 2011-02-06 00:24:48.551008149 +0100
@@ -85,10 +85,10 @@
*
* This function writes a value to the specified register
void retu_set_clear_reg_bits(int reg, u16 set, u16 clear)
Index: linux-2.6.37/drivers/cbus/retu.h
===================================================================
---- linux-2.6.37.orig/drivers/cbus/retu.h 2011-01-28 22:33:39.695216760 +0100
-+++ linux-2.6.37/drivers/cbus/retu.h 2011-01-28 22:40:55.380584650 +0100
-@@ -39,6 +39,7 @@
- #define RETU_REG_CC2 0x0e /* Common control register 2 */
+--- linux-2.6.37.orig/drivers/cbus/retu.h 2011-02-06 00:24:48.493004751 +0100
++++ linux-2.6.37/drivers/cbus/retu.h 2011-02-06 00:24:48.551008149 +0100
+@@ -40,6 +40,8 @@
#define RETU_REG_CTRL_CLR 0x0f /* Regulator clear register */
#define RETU_REG_CTRL_SET 0x10 /* Regulator set register */
-+#define RETU_REG_UNK1 0x14 /* 0x1000 is set when charger is plugged in */
#define RETU_REG_STATUS 0x16 /* Status register */
++#define RETU_REG_STATUS_BATAVAIL 0x0100 /* Battery available */
++#define RETU_REG_STATUS_CHGPLUG 0x1000 /* Charger is plugged in */
#define RETU_REG_WATCHDOG 0x17 /* Watchdog register */
#define RETU_REG_AUDTXR 0x18 /* Audio Codec Tx register */
-@@ -57,8 +58,25 @@
+ #define RETU_REG_MAX 0x1f
+@@ -57,8 +59,25 @@
#define MAX_RETU_IRQ_HANDLERS 16
int retu_request_irq(int id, void *irq_handler, unsigned long arg, char *name);
Index: linux-2.6.37/arch/arm/mach-omap2/board-n8x0.c
===================================================================
---- linux-2.6.37.orig/arch/arm/mach-omap2/board-n8x0.c 2011-01-28 22:33:39.679219500 +0100
-+++ linux-2.6.37/arch/arm/mach-omap2/board-n8x0.c 2011-01-28 22:33:39.754206648 +0100
+--- linux-2.6.37.orig/arch/arm/mach-omap2/board-n8x0.c 2011-02-06 00:24:48.478003872 +0100
++++ linux-2.6.37/arch/arm/mach-omap2/board-n8x0.c 2011-02-06 00:24:48.551008149 +0100
@@ -907,6 +907,17 @@
ARRAY_SIZE(n8x0_gpio_switches));
}
Index: linux-2.6.37/drivers/cbus/lipocharge.c
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
-+++ linux-2.6.37/drivers/cbus/lipocharge.c 2011-01-28 22:33:39.755206476 +0100
-@@ -0,0 +1,63 @@
++++ linux-2.6.37/drivers/cbus/lipocharge.c 2011-02-06 12:57:01.427475867 +0100
+@@ -0,0 +1,58 @@
+/*
+ * Generic LIPO battery charger
+ *
+ spin_unlock(&c->lock);
+}
+
-+struct lipocharge * lipocharge_alloc(gfp_t gfp)
++void lipocharge_init(struct lipocharge *c)
+{
-+ struct lipocharge *c;
-+
-+ c = kzalloc(sizeof(*c), gfp);
-+ if (!c)
-+ return NULL;
+ spin_lock_init(&c->lock);
+ setup_timer(&c->timer, lipocharge_timer, (unsigned long)c);
-+
-+ return c;
+}
+
-+void lipocharge_free(struct lipocharge *c)
++void lipocharge_exit(struct lipocharge *c)
+{
-+ kfree(c);
+}
+
+int lipocharge_start(struct lipocharge *c)
+{
-+ if (!c->set_current || !c->get_voltage ||
++ if (!c->set_charge_current || !c->get_charge_current ||
++ !c->get_voltage ||
+ !c->finished || !c->emergency)
+ return -EINVAL;
+ if (!c->top_voltage || c->top_voltage > 4200)
+ return -EINVAL;
+ //TODO
++
++ return 0;
+}
+
+void lipocharge_stop(struct lipocharge *c)
Index: linux-2.6.37/drivers/cbus/lipocharge.h
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
-+++ linux-2.6.37/drivers/cbus/lipocharge.h 2011-01-28 22:33:39.755206476 +0100
-@@ -0,0 +1,50 @@
++++ linux-2.6.37/drivers/cbus/lipocharge.h 2011-02-06 12:36:29.800830614 +0100
+@@ -0,0 +1,55 @@
+#ifndef LIPOCHARGE_H_
+#define LIPOCHARGE_H_
+
+#define LIPORATE(a,b) (((a) * 1000) + (b))
+#define LIPORATE_1C LIPORATE(1,0) /* 1C */
+#define LIPORATE_p8C LIPORATE(0,8) /* 0.8C */
++#define LIPORATE_p6C LIPORATE(0,6) /* 0.6C */
+
+/** struct lipocharge - A generic LIPO charger
+ *
+ * @rate: Charge rate.
+ * @top_voltage: Fully charged voltage, in mV.
+ *
-+ * @set_current: Set the charge current, in mA.
++ * @set_charge_current: Set the charge current, in mA.
++ * @get_charge_current: Get the battery current, in signed mA.
+ * @get_voltage: Get the battery voltage, in mV.
+ *
++ * @finished: Charging finished.
+ * @emergency: Something went wrong. Force shutdown.
-+ *
-+ * @priv: opaque pointer.
+ */
-+struct lipocharge
-+{
++struct lipocharge {
+ unsigned int capacity;
+ unsigned int rate;
+ unsigned int top_voltage;
+
-+ int (*set_current)(struct lipocharge *c, unsigned int ma);
++ int (*set_charge_current)(struct lipocharge *c, unsigned int ma);
++ int (*get_charge_current)(struct lipocharge *c, int *ma);
+ int (*get_voltage)(struct lipocharge *c, unsigned int *mv);
+
+ void (*finished)(struct lipocharge *c);
+ void (*emergency)(struct lipocharge *c);
+
-+ void *priv;
-+
+ /* internal */
+ spinlock_t lock;
+ struct timer_list timer;
++ bool charging;
+};
+
-+struct lipocharge * lipocharge_alloc(gfp_t gfp);
-+void lipocharge_free(struct lipocharge *c);
++void lipocharge_init(struct lipocharge *c);
++void lipocharge_exit(struct lipocharge *c);
+
+int lipocharge_start(struct lipocharge *c);
+void lipocharge_stop(struct lipocharge *c);
+
++static inline bool lipocharge_is_charging(struct lipocharge *c)
++{
++ return c->charging;
++}
++
+#endif /* LIPOCHARGE_H_ */
Index: linux-2.6.37/drivers/cbus/tahvo.h
===================================================================
---- linux-2.6.37.orig/drivers/cbus/tahvo.h 2011-01-28 22:33:39.696216589 +0100
-+++ linux-2.6.37/drivers/cbus/tahvo.h 2011-01-28 22:33:39.755206476 +0100
-@@ -30,8 +30,14 @@
+--- linux-2.6.37.orig/drivers/cbus/tahvo.h 2011-02-06 00:24:48.494004810 +0100
++++ linux-2.6.37/drivers/cbus/tahvo.h 2011-02-06 00:24:48.551008149 +0100
+@@ -30,17 +30,28 @@
#define TAHVO_REG_IDR 0x01 /* Interrupt ID */
#define TAHVO_REG_IDSR 0x02 /* Interrupt status */
#define TAHVO_REG_IMR 0x03 /* Interrupt mask */
-+#define TAHVO_REG_CHGCURR 0x04 /* Charge current control (8-bit) */
++#define TAHVO_REG_CHGCURR 0x04 /* Charge current control PWM (8-bit) */
#define TAHVO_REG_LEDPWMR 0x05 /* LED PWM */
#define TAHVO_REG_USBR 0x06 /* USB control */
+#define TAHVO_REG_CHGCTL 0x08 /* Charge control register */
-+#define TAHVO_REG_CHGCTL_EN 0x0001 /* Global charge enable */
-+#define TAHVO_REG_CHGCTL2 0x0c /* Charge control register 2 */
++#define TAHVO_REG_CHGCTL_EN 0x0001 /* Global charge enable */
++#define TAHVO_REG_CHGCTL_PWMOVR 0x0004 /* PWM override. Force charge PWM to 100% duty cycle. */
++#define TAHVO_REG_CHGCTL_UNK8 0x0008 /* XXX: Unknown. Written on init. */
++#define TAHVO_REG_CHGCTL_CURMEAS 0x0040 /* Enable battery current measurement. */
++#define TAHVO_REG_CHGCTL_CURTIMRST 0x0080 /* Current measure timer reset. */
++#define TAHVO_REG_BATCURRTIMER 0x0c /* Battery current measure timer (8-bit) */
+#define TAHVO_REG_BATCURR 0x0d /* Battery (dis)charge current (signed 16-bit) */
+
#define TAHVO_REG_MAX 0x0d
/* Interrupt sources */
+ #define TAHVO_INT_VBUSON 0
++#define TAHVO_INT_BATCURR 7 /* Battery current measure timer */
+
+ #define MAX_TAHVO_IRQ_HANDLERS 8
+
+ int tahvo_read_reg(int reg);
+-void tahvo_write_reg(int reg, u16 val);
++int tahvo_write_reg(int reg, u16 val);
+ void tahvo_set_clear_reg_bits(int reg, u16 set, u16 clear);
+ int tahvo_request_irq(int id, void *irq_handler, unsigned long arg, char *name);
+ void tahvo_free_irq(int id);
+Index: linux-2.6.37/drivers/cbus/tahvo.c
+===================================================================
+--- linux-2.6.37.orig/drivers/cbus/tahvo.c 2011-02-06 00:24:48.494004810 +0100
++++ linux-2.6.37/drivers/cbus/tahvo.c 2011-02-06 00:24:48.552008207 +0100
+@@ -85,10 +85,10 @@
+ *
+ * This function writes a value to the specified register
+ */
+-void tahvo_write_reg(int reg, u16 val)
++int tahvo_write_reg(int reg, u16 val)
+ {
+ BUG_ON(!tahvo_initialized);
+- cbus_write_reg(cbus_host, TAHVO_ID, reg, val);
++ return cbus_write_reg(cbus_host, TAHVO_ID, reg, val);
+ }
+
+ /**
projects / openwrt / staging / lynxis / omap.git / commitdiff