/*
* The pm8058_nc_ir detects insert / remove of the headset (for NO),
* The current state of the headset is maintained in othc_ir_state variable.
* Due to a hardware bug, false switch interrupts are seen during headset
* insert. This is handled in the software by rejecting the switch interrupts
* for a small period of time after the headset has been inserted.
*/
static irqreturn_t pm8058_nc_ir(int irq, void *dev_id)
{
unsigned long flags, rc;
struct pm8058_othc *dd = dev_id;
spin_lock_irqsave(&dd->lock, flags);
/* Enable the switch reject flag */
dd->switch_reject = true;
spin_unlock_irqrestore(&dd->lock, flags);
/* Start the HR timer if one is not active */
if (hrtimer_active(&dd->timer))
hrtimer_cancel(&dd->timer);
hrtimer_start(&dd->timer,
ktime_set((dd->switch_debounce_ms / 1000),
(dd->switch_debounce_ms % 1000) * 1000000), HRTIMER_MODE_REL);
/* disable irq, this gets enabled in the workqueue */
disable_irq_nosync(dd->othc_irq_ir);
/* Check the MIC_BIAS status, to check if inserted or removed */
rc = pm8058_irq_get_rt_status(dd->pm_chip, dd->othc_irq_ir);
if (rc < 0) {
pr_err("Unable to read IR status\n");
goto fail_ir;
}
dd->othc_ir_state = rc;
schedule_delayed_work(&dd->detect_work,
msecs_to_jiffies(dd->detection_delay_ms));
fail_ir:
return IRQ_HANDLED;
}
/*
* The pm8058_no_sw detects the switch press and release operation.
* The odd number call is press and even number call is release.
* The current state of the button is maintained in othc_sw_state variable.
* This isr gets called only for NO type headsets.
*/
static irqreturn_t pm8058_no_sw(int irq, void *dev_id)
{
int level;
struct pm8058_othc *dd = dev_id;
unsigned long flags;
#if defined(CONFIG_HTC_HEADSET_8X60)
hs_8x60_notify_key_event();
#endif /* CONFIG_HTC_HEADSET_8X60 */
spin_lock_irqsave(&dd->lock, flags);
if (dd->switch_reject == true) {
spin_unlock_irqrestore(&dd->lock, flags);
return IRQ_HANDLED;
}
spin_unlock_irqrestore(&dd->lock, flags);
level = pm8058_irq_get_rt_status(dd->pm_chip, dd->othc_irq_sw);
if (level < 0) {
pr_err("Unable to read IRQ status register\n");
return IRQ_HANDLED;
}
if (dd->othc_support_n_switch == true) {
#if !defined(CONFIG_HTC_HEADSET_8X60)
if (level == 0) {
dd->othc_sw_state = false;
input_report_key(dd->othc_ipd, dd->sw_key_code, 0);
input_sync(dd->othc_ipd);
} else {
disable_irq_nosync(dd->othc_irq_sw);
schedule_work(&dd->switch_work);
}
#endif /* CONFIG_HTC_HEADSET_8X60 */
return IRQ_HANDLED;
}
/*
* It is necessary to check the software state and the hardware state
* to make sure that the residual interrupt after the debounce time does
* not disturb the software state machine.
*/
if (level == 1 && dd->othc_sw_state == false) {
/* Switch has been pressed */
dd->othc_sw_state = true;
input_report_key(dd->othc_ipd, KEY_MEDIA, 1);
} else if (level == 0 && dd->othc_sw_state == true) {
/* Switch has been released */
dd->othc_sw_state = false;
input_report_key(dd->othc_ipd, KEY_MEDIA, 0);
}
input_sync(dd->othc_ipd);
return IRQ_HANDLED;
}
static int pm8058_mpp_get(struct gpio_chip *chip, unsigned mpp)
{
struct pm8058_gpio_platform_data *pdata;
struct pm8058_chip *pm_chip;
if (mpp >= PM8058_MPPS || chip == NULL)
return -EINVAL;
pdata = chip->dev->platform_data;
pm_chip = dev_get_drvdata(chip->dev);
return pm8058_irq_get_rt_status(pm_chip,
pdata->irq_base + mpp);
}
static irqreturn_t max_valid_handler(int irq, void *dev_id)
{
struct max8903_struct *max_chg;
struct platform_device *pdev;
struct pm8058_chip *chip;
int state;
pdev = (struct platform_device *)dev_id;
max_chg = platform_get_drvdata(pdev);
chip = get_irq_data(irq);
#if 0
/* Dock insert, think it as AC charger */
if (gpio_get_value_cansleep(max_chg->dock_det) && (BOARD_NUM(hw_ver) != BOARD_NUM_V11))
max_chg->adapter_hw_chg.type = CHG_TYPE_USB;
else
max_chg->adapter_hw_chg.type = CHG_TYPE_AC;
#endif
/* reinitialize charger type */
if ((BOARD_NUM(hw_ver) == BOARD_NUM_V11))
max_chg->adapter_hw_chg.type = CHG_TYPE_AC;
else
max_chg->adapter_hw_chg.type = CHG_TYPE_USB;
state = pm8058_irq_get_rt_status(chip, irq);
pr_info("%s:charge state=%d, hw_chg_type=%d\n", __func__, state, max_chg->adapter_hw_chg.type);
if(state){
/* delay to queue charge insert envent when charger inserted,
* need to detect if it is an ac charger
*/
//msm_charger_notify_event(&max_chg->adapter_hw_chg,
// CHG_INSERTED_EVENT);
delay_ac_charger_detect = 1;
pr_info("%s:delay_ac_charger_detect=%d start ac charger delay work\n", __func__, delay_ac_charger_detect);
schedule_delayed_work(&max_chg->ac_charger,
AC_CHARGER_DETECT_DELAY);
max_chg->present = 1;
wake_lock(&max_chg->wl);
}else{
delay_ac_charger_detect = 0;
pr_info("%s:delay_ac_charger_detect=%d cancel ac charger delay work\n", __func__, delay_ac_charger_detect);
cancel_delayed_work(&saved_msm_chg->ac_charger);
msm_charger_notify_event(&max_chg->adapter_hw_chg,
CHG_REMOVED_EVENT);
max_chg->present = 0;
wake_unlock(&max_chg->wl);
}
return IRQ_HANDLED;
}
static int pm_chg_get_rt_status(int irq)
{
int count = 3;
int ret;
while ((ret =
pm8058_irq_get_rt_status(pm8058_chg.pm_chip, irq)) == -EAGAIN
&& count--) {
dev_info(pm8058_chg.dev, "%s trycount=%d\n", __func__, count);
cpu_relax();
}
if (ret == -EAGAIN)
return 0;
else
return ret;
}
/*
* The pm8058_no_sw detects the switch press and release operation.
* The odd number call is press and even number call is release.
* The current state of the button is maintained in othc_sw_state variable.
* This isr gets called only for NO type headsets.
*/
static irqreturn_t pm8058_no_sw(int irq, void *dev_id)
{
int level;
struct pm8058_othc *dd = dev_id;
unsigned long flags;
spin_lock_irqsave(&dd->lock, flags);
if (dd->switch_reject == true) {
spin_unlock_irqrestore(&dd->lock, flags);
return IRQ_HANDLED;
}
spin_unlock_irqrestore(&dd->lock, flags);
level = pm8058_irq_get_rt_status(dd->pm_chip, dd->othc_irq_sw);
if (level < 0) {
pr_err("%s: Unable to read IRQ status register\n", __func__);
return IRQ_HANDLED;
}
/*
* It is necessary to check the software state and the hardware state
* to make sure that the residual interrupt after the debounce time does
* not disturb the software state machine.
*/
if (level == 1 && dd->othc_sw_state == false) {
/* Switch has been pressed */
dd->othc_sw_state = true;
input_report_key(dd->othc_ipd, KEY_MEDIA, 1);
} else if (level == 0 && dd->othc_sw_state == true) {
/* Switch has been released */
dd->othc_sw_state = false;
input_report_key(dd->othc_ipd, KEY_MEDIA, 0);
}
input_sync(dd->othc_ipd);
return IRQ_HANDLED;
}
static ssize_t pmic8058_kp_pressed_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
int row, col;
int keystate = 0;
int pwrkeystate = 0;
struct pmic8058_kp *kp = dev_get_drvdata(dev);
for (row = 0; row < kp->pdata->num_rows; row++) {
for (col = 0; col < kp->pdata->num_cols; col++) {
if(!(kp->keystate[row] & (1 << col))) {
keystate = 1;
}
}
}
pwrkeystate = pm8058_irq_get_rt_status(kp->pm_chip, PM8058_PWRKEY_PRESS_IRQ(PM8058_IRQ_BASE));
if (keystate || pwrkeystate)
sprintf(buf, "PRESS");
else
sprintf(buf, "RELEASE");
return strlen(buf);
}
static int
othc_configure_hsed(struct pm8058_othc *dd, struct platform_device *pd)
{
int rc, i;
struct input_dev *ipd;
struct pmic8058_othc_config_pdata *pdata = pd->dev.platform_data;
struct othc_hsed_config *hsed_config = pdata->hsed_config;
dd->othc_sdev.name = "h2w";
dd->othc_sdev.print_name = othc_headset_print_name;
rc = switch_dev_register(&dd->othc_sdev);
if (rc) {
pr_err("%s: Unable to register switch device \n", __func__);
return rc;
}
ipd = input_allocate_device();
if (ipd == NULL) {
pr_err("%s: Unable to allocate memory \n", __func__);
rc = -ENOMEM;
goto fail_input_alloc;
}
/* Get the IRQ for Headset Insert-remove and Switch-press */
dd->othc_irq_sw = platform_get_irq(pd, 0);
dd->othc_irq_ir = platform_get_irq(pd, 1);
if (dd->othc_irq_ir < 0) {
pr_err("%s: othc resource:IRQ_IR absent \n", __func__);
rc = -ENXIO;
goto fail_othc_config;
}
if (dd->othc_irq_sw < 0) {
pr_err("%s: othc resource:IRQ_SW absent\n", __func__);
rc = -ENXIO;
goto fail_othc_config;
}
ipd->name = "pmic8058_othc";
ipd->phys = "pmic8058_othc/input0";
ipd->dev.parent = &pd->dev;
dd->othc_ipd = ipd;
dd->othc_sw_state = false;
dd->othc_ir_state = false;
dd->switch_debounce_ms = hsed_config->switch_debounce_ms;
dd->othc_support_n_switch = hsed_config->othc_support_n_switch;
if (dd->othc_support_n_switch == true) {
pr_debug("%s: OTHC 'n' switch supported\n", __func__);
if (!hsed_config->switch_config ||
!hsed_config->switch_config->switch_info) {
rc = -EINVAL;
pr_err("%s: Switch pdata absent!\n", __func__);
goto fail_othc_config;
}
dd->switch_config = hsed_config->switch_config;
for (i = 0; i < dd->switch_config->num_keys; i++) {
input_set_capability(ipd, EV_KEY,
dd->switch_config->switch_info[i].key_code);
}
} else
input_set_capability(ipd, EV_KEY, KEY_MEDIA);
input_set_capability(ipd, EV_SW, SW_HEADPHONE_INSERT);
input_set_drvdata(ipd, dd);
spin_lock_init(&dd->lock);
rc = pm8058_configure_othc(dd);
if (rc < 0)
goto fail_othc_config;
rc = input_register_device(ipd);
if (rc) {
pr_err("%s: Unable to register OTHC device \n", __func__);
goto fail_othc_config;
}
/* Check if the headset is already inserted during boot up */
rc = pm8058_irq_get_rt_status(dd->pm_chip, dd->othc_irq_ir);
if (rc < 0) {
pr_err("%s: Unable to get headset status at boot\n", __func__);
goto fail_ir_irq;
}
if (rc) {
pr_debug("%s: Headset inserted during boot up\n", __func__);
/* Headset present */
dd->othc_ir_state = true;
switch_set_state(&dd->othc_sdev, 1);
input_report_switch(dd->othc_ipd, SW_HEADPHONE_INSERT, 1);
input_sync(dd->othc_ipd);
}
hrtimer_init(&dd->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
dd->timer.function = pm8058_othc_timer;
rc = request_threaded_irq(dd->othc_irq_ir, NULL, pm8058_nc_ir,
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING | IRQF_DISABLED,
"pm8058_othc_ir", dd);
if (rc < 0) {
pr_err("%s: Unable to request pm8058_othc_ir IRQ\n", __func__);
goto fail_ir_irq;
}
/* This irq is used only for NO type headset */
rc = request_threaded_irq(dd->othc_irq_sw, NULL, pm8058_no_sw,
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING | IRQF_DISABLED,
"pm8058_othc_sw", dd);
if (rc < 0) {
pr_err("%s: Unable to request pm8058_othc_sw IRQ\n",
__func__);
goto fail_sw_irq;
}
device_init_wakeup(&pd->dev, hsed_config->othc_wakeup);
INIT_WORK(&dd->headset_work, headset_work_f);
if (dd->othc_support_n_switch == true)
INIT_WORK(&dd->switch_work, switch_work_f);
return 0;
fail_sw_irq:
free_irq(dd->othc_irq_ir, dd);
fail_ir_irq:
input_unregister_device(ipd);
dd->othc_ipd = NULL;
fail_othc_config:
input_free_device(ipd);
fail_input_alloc:
switch_dev_unregister(&dd->othc_sdev);
return rc;
}
static int
othc_configure_hsed(struct pm8058_othc *dd, struct platform_device *pd)
{
int rc;
struct input_dev *ipd;
struct pmic8058_othc_config_pdata *pdata = pd->dev.platform_data;
struct othc_hsed_config *hsed_config = pdata->hsed_config;
dd->othc_sdev.name = "h2w";
dd->othc_sdev.print_name = othc_headset_print_name;
rc = switch_dev_register(&dd->othc_sdev);
if (rc) {
pr_err("%s: Unable to register switch device \n", __func__);
return rc;
}
ipd = input_allocate_device();
if (ipd == NULL) {
pr_err("%s: Unable to allocate memory \n", __func__);
rc = -ENOMEM;
goto fail_input_alloc;
}
/* Get the IRQ for Headset Insert-remove and Switch-press */
dd->othc_irq_sw = platform_get_irq(pd, 0);
dd->othc_irq_ir = platform_get_irq(pd, 1);
if (dd->othc_irq_ir < 0) {
pr_err("%s: othc resource:IRQ_IR absent \n", __func__);
rc = -ENXIO;
goto fail_othc_config;
}
if (hsed_config->othc_headset == OTHC_HEADSET_NO) {
if (dd->othc_irq_sw < 0) {
pr_err("%s: othc resource:IRQ_SW absent\n", __func__);
rc = -ENXIO;
goto fail_othc_config;
}
}
ipd->name = "pmic8058_othc";
ipd->phys = "pmic8058_othc/input0";
ipd->dev.parent = &pd->dev;
input_set_capability(ipd, EV_SW, SW_HEADPHONE_INSERT);
input_set_capability(ipd, EV_KEY, KEY_MEDIA);
input_set_drvdata(ipd, dd);
dd->othc_ipd = ipd;
dd->othc_sw_state = false;
dd->othc_ir_state = false;
if (hsed_config->othc_headset == OTHC_HEADSET_NC) {
/* Check if NC specific pdata is present */
if (!hsed_config->othc_nc_gpio_setup ||
!hsed_config->othc_nc_gpio) {
pr_err("%s: NC headset pdata missing \n", __func__);
rc = -EINVAL;
goto fail_othc_config;
}
}
rc = pm8058_configure_othc(dd);
if (rc < 0)
goto fail_othc_config;
rc = input_register_device(ipd);
if (rc) {
pr_err("%s: Unable to register OTHC device \n", __func__);
goto fail_othc_config;
}
/* Check if the headset is already inserted during boot up */
rc = pm8058_irq_get_rt_status(dd->pm_chip, dd->othc_irq_ir);
if (rc < 0) {
pr_err("%s: Unable to get headset status at boot\n", __func__);
goto fail_ir_irq;
}
if (rc) {
pr_debug("%s: Headset inserted during boot up\n", __func__);
/* Headset present */
dd->othc_ir_state = true;
switch_set_state(&dd->othc_sdev, 1);
input_report_switch(dd->othc_ipd, SW_HEADPHONE_INSERT, 1);
input_sync(dd->othc_ipd);
}
rc = request_irq(dd->othc_irq_ir, pm8058_nc_ir,
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
"pm8058_othc_ir", dd);
if (rc < 0) {
pr_err("%s: Unable to request pm8058_othc_ir IRQ\n", __func__);
goto fail_ir_irq;
}
if (hsed_config->othc_headset == OTHC_HEADSET_NO) {
/* This irq is used only for NO type headset */
rc = request_irq(dd->othc_irq_sw, pm8058_no_sw,
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
"pm8058_othc_sw", dd);
if (rc < 0) {
pr_err("%s: Unable to request pm8058_othc_sw IRQ \n",
__func__);
goto fail_sw_irq;
}
} else {
/* NC type of headset use GPIO for IR */
rc = hsed_config->othc_nc_gpio_setup();
if (rc < 0) {
pr_err("%s: Unable to setup gpio for NC type \n",
__func__);
goto fail_sw_irq;
}
}
device_init_wakeup(&pd->dev, hsed_config->othc_wakeup);
INIT_WORK(&dd->switch_work, switch_work_f);
return 0;
fail_sw_irq:
free_irq(dd->othc_irq_ir, dd);
fail_ir_irq:
input_unregister_device(ipd);
dd->othc_ipd = NULL;
fail_othc_config:
input_free_device(ipd);
fail_input_alloc:
switch_dev_unregister(&dd->othc_sdev);
return rc;
}
static int __devinit kp_probe(struct platform_device *pdev)
{
struct keypad_pmic_mogami_platform_data *pdata = pdev->dev.platform_data;
struct kp_data *dt;
struct pm8058_chip *pm_chip = platform_get_drvdata(pdev);
int rc, i;
if (pm_chip == NULL) {
dev_err(&pdev->dev, "no parent pm8058\n");
return -EINVAL;
}
if (pdata == NULL) {
dev_err(&pdev->dev, "no pdata\n");
return -EINVAL;
}
dt = kzalloc(sizeof(struct kp_data), GFP_KERNEL);
if (dt == NULL)
return -ENOMEM;
dt->pm_chip = pm_chip;
dt->num_keys = pdata->keymap_size;
dt->pm_gpio_config = pdata->pm_gpio_config;
dt->keys = kzalloc(dt->num_keys * sizeof(struct kp_key), GFP_KERNEL);
if (dt->keys == NULL) {
rc = -ENOMEM;
goto err_key_alloc_failed;
}
platform_set_drvdata(pdev, dt);
dt->dev = &pdev->dev;
dt->input = input_allocate_device();
if (dt->input == NULL) {
dev_err(&pdev->dev, "unable to allocate input device\n");
rc = -ENOMEM;
goto err_input_alloc_failed;
}
for (i = 0; i < dt->num_keys; ++i) {
dt->keys[i].irq = pdata->keymap[i].irq;
dt->keys[i].gpio = pdata->keymap[i].gpio;
dt->keys[i].code = pdata->keymap[i].code;
dt->keys[i].wake = pdata->keymap[i].wake;
/* our irq status will be a bitmask of the block which
* contains a certain gpio. since a block is only eight bits
* we need to find the correct bit in the block which
* reflects the requested gpio */
dt->keys[i].id = (pdata->keymap[i].gpio - 1) % 8;
set_bit(dt->keys[i].code, dt->input->keybit);
rc = kp_pm_gpio_config(dt, pm_chip, dt->keys[i].gpio);
if (rc)
goto err_bad_gpio_config;
}
dt->input->name = pdata->input_name;
dt->input->phys = KP_DEVICE;
dt->input->dev.parent = &pdev->dev;
dt->input->open = kp_device_open;
dt->input->close = kp_device_close;
dt->input->id.bustype = BUS_HOST;
dt->input->id.version = 0x0001;
dt->input->id.product = 0x0001;
dt->input->id.vendor = 0x0001;
set_bit(EV_KEY, dt->input->evbit);
input_set_drvdata(dt->input, dt);
rc = input_register_device(dt->input);
if (rc < 0) {
dev_err(&pdev->dev, "unable to register keypad input device\n");
input_free_device(dt->input);
goto err_input_register_failed;
}
for (i = 0; i < dt->num_keys; ++i) {
rc = pm8058_irq_get_rt_status(dt->pm_chip, dt->keys[i].irq);
if (rc < 0) {
dev_err(&dt->input->dev, "unable to get irq status\n");
/* non-fatal */
} else {
dt->keys[i].state = !rc;
input_report_key(dt->input, dt->keys[i].code, !rc);
}
rc = request_threaded_irq(dt->keys[i].irq, NULL, kp_irq,
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING |
IRQF_DISABLED, KP_NAME, &dt->input->dev);
if (rc < 0) {
dev_err(&dt->input->dev, "unable to request irq\n");
goto err_request_irq;
}
if (!dt->keys[i].wake)
disable_irq(dt->keys[i].irq);
else
enable_irq_wake(dt->keys[i].irq);
}
return 0;
err_request_irq:
for (--i; i >= 0; --i)
free_irq(dt->keys[i].irq, &dt->input->dev);
input_unregister_device(dt->input);
err_input_register_failed:
err_bad_gpio_config:
err_input_alloc_failed:
kfree(dt->keys);
err_key_alloc_failed:
kfree(dt);
return rc;
}
static int
othc_configure_hsed(struct pm8058_othc *dd, struct platform_device *pd)
{
int rc;
struct input_dev *ipd;
struct pmic8058_othc_config_pdata *pdata = pd->dev.platform_data;
struct othc_hsed_config *hsed_config = pdata->hsed_config;
dd->othc_sdev.name = "h2w";
dd->othc_sdev.print_name = othc_headset_print_name;
rc = switch_dev_register(&dd->othc_sdev);
if (rc) {
pr_err("Unable to register switch device\n");
return rc;
}
ipd = input_allocate_device();
if (ipd == NULL) {
pr_err("Unable to allocate memory\n");
rc = -ENOMEM;
goto fail_input_alloc;
}
/* Get the IRQ for Headset Insert-remove and Switch-press */
dd->othc_irq_sw = platform_get_irq(pd, 0);
dd->othc_irq_ir = platform_get_irq(pd, 1);
if (dd->othc_irq_ir < 0 || dd->othc_irq_sw < 0) {
pr_err("othc resource:IRQs absent\n");
rc = -ENXIO;
goto fail_micbias_config;
}
if (pdata->hsed_name != NULL)
ipd->name = pdata->hsed_name;
else
ipd->name = "pmic8058_othc";
ipd->phys = "pmic8058_othc/input0";
ipd->dev.parent = &pd->dev;
dd->othc_ipd = ipd;
dd->othc_sw_state = false;
dd->switch_debounce_ms = hsed_config->switch_debounce_ms;
dd->othc_support_n_switch = hsed_config->othc_support_n_switch;
dd->accessory_support = pdata->hsed_config->accessories_support;
dd->detection_delay_ms = pdata->hsed_config->detection_delay_ms;
if (dd->othc_support_n_switch == true)
dd->switch_config = hsed_config->switch_config;
if (dd->accessory_support == true) {
dd->accessory_info = pdata->hsed_config->accessories;
dd->num_accessories = pdata->hsed_config->othc_num_accessories;
dd->accessories_adc_support =
pdata->hsed_config->accessories_adc_support;
dd->accessories_adc_channel =
pdata->hsed_config->accessories_adc_channel;
dd->video_out_gpio = pdata->hsed_config->video_out_gpio;
}
/* Configure the MIC_BIAS line for headset detection */
rc = pm8058_configure_micbias(dd);
if (rc < 0)
goto fail_micbias_config;
/* Configure for the switch events */
rc = pm8058_configure_switch(dd);
if (rc < 0)
goto fail_micbias_config;
/* Configure the accessory */
if (dd->accessory_support == true) {
rc = pm8058_configure_accessory(dd);
if (rc < 0)
goto fail_micbias_config;
}
input_set_drvdata(ipd, dd);
spin_lock_init(&dd->lock);
rc = input_register_device(ipd);
if (rc) {
pr_err("Unable to register OTHC device\n");
goto fail_micbias_config;
}
hrtimer_init(&dd->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
dd->timer.function = pm8058_othc_timer;
/* Request the HEADSET IR interrupt */
rc = request_threaded_irq(dd->othc_irq_ir, NULL, pm8058_nc_ir,
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING | IRQF_DISABLED,
"pm8058_othc_ir", dd);
if (rc < 0) {
pr_err("Unable to request pm8058_othc_ir IRQ\n");
goto fail_ir_irq;
}
/* Request the SWITCH press/release interrupt */
rc = request_threaded_irq(dd->othc_irq_sw, NULL, pm8058_no_sw,
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING | IRQF_DISABLED,
"pm8058_othc_sw", dd);
if (rc < 0) {
pr_err("Unable to request pm8058_othc_sw IRQ\n");
goto fail_sw_irq;
}
/* Check if the accessory is already inserted during boot up */
rc = pm8058_irq_get_rt_status(dd->pm_chip, dd->othc_irq_ir);
if (rc < 0) {
pr_err("Unable to get accessory status at boot\n");
goto fail_ir_irq;
}
if (rc) {
pr_debug("Accessory inserted during boot up\n");
/* process the data and report the inserted accessory */
rc = pm8058_accessory_report(dd, 1);
if (rc)
pr_debug("Unabele to detect accessory at boot up\n");
}
device_init_wakeup(&pd->dev,
hsed_config->hsed_bias_config->othc_wakeup);
INIT_DELAYED_WORK(&dd->detect_work, detect_work_f);
if (dd->othc_support_n_switch == true)
INIT_WORK(&dd->switch_work, switch_work_f);
return 0;
fail_sw_irq:
free_irq(dd->othc_irq_ir, dd);
fail_ir_irq:
input_unregister_device(ipd);
dd->othc_ipd = NULL;
fail_micbias_config:
input_free_device(ipd);
fail_input_alloc:
switch_dev_unregister(&dd->othc_sdev);
return rc;
}
static int pm8058_accessory_report(struct pm8058_othc *dd, int status)
{
#if 0
int i, rc, detected = 0;
u8 micbias_status, switch_status;
if (dd->accessory_support == false) {
/* Report default headset */
switch_set_state(&dd->othc_sdev, !!status);
input_report_switch(dd->othc_ipd, SW_HEADPHONE_INSERT,
!!status);
input_sync(dd->othc_ipd);
return 0;
}
/* For accessory */
if (dd->accessory_support == true && status == 0) {
/* Report removal of the accessory. */
/*
* If the current accessory is video cable, reject the removal
* interrupt.
*/
pr_info("Accessory [%d] removed\n", dd->curr_accessory);
if (dd->curr_accessory == OTHC_SVIDEO_OUT)
return 0;
switch_set_state(&dd->othc_sdev, 0);
input_report_switch(dd->othc_ipd, dd->curr_accessory_code, 0);
input_sync(dd->othc_ipd);
return 0;
}
/* Check the MIC_BIAS status */
rc = pm8058_irq_get_rt_status(dd->pm_chip, dd->othc_irq_ir);
if (rc < 0) {
pr_err("Unable to read IR status\n");
goto fail_ir_accessory;
}
micbias_status = !!rc;
/* Check the switch status */
rc = pm8058_irq_get_rt_status(dd->pm_chip, dd->othc_irq_sw);
if (rc < 0) {
pr_err("Unable to read SWITCH status\n");
goto fail_ir_accessory;
}
switch_status = !!rc;
/* Loop through to check which accessory is connected */
for (i = 0; i < dd->num_accessories; i++) {
detected = 0;
if (dd->accessory_info[i].enabled == false)
continue;
if (dd->accessory_info[i].detect_flags & OTHC_MICBIAS_DETECT) {
if (micbias_status)
detected = 1;
else
continue;
}
if (dd->accessory_info[i].detect_flags & OTHC_SWITCH_DETECT) {
if (switch_status)
detected = 1;
else
continue;
}
if (dd->accessory_info[i].detect_flags & OTHC_GPIO_DETECT) {
rc = gpio_get_value_cansleep(
dd->accessory_info[i].gpio);
if (rc < 0)
continue;
if (rc ^ dd->accessory_info[i].active_low)
detected = 1;
else
continue;
}
if (dd->accessory_info[i].detect_flags & OTHC_ADC_DETECT)
detected = accessory_adc_detect(dd, i);
if (detected)
break;
}
if (detected) {
dd->curr_accessory = dd->accessory_info[i].accessory;
dd->curr_accessory_code = dd->accessory_info[i].key_code;
/* if Video out cable detected enable the video path*/
if (dd->curr_accessory == OTHC_SVIDEO_OUT) {
pm8058_othc_svideo_enable(
dd->othc_pdata->micbias_select, true);
} else {
switch_set_state(&dd->othc_sdev, dd->curr_accessory);
input_report_switch(dd->othc_ipd,
dd->curr_accessory_code, 1);
input_sync(dd->othc_ipd);
}
pr_info("Accessory [%d] inserted\n", dd->curr_accessory);
} else
pr_info("Unable to detect accessory. False interrupt!\n");
return 0;
fail_ir_accessory:
return rc;
#endif
return 0;
}
static int __devinit max8903_probe(struct platform_device *pdev)
{
struct max8903_struct *max_chg;
struct device *dev = &pdev->dev;
struct max8903_platform_data *pdata = pdev->dev.platform_data;
struct pm8058_chip *chip;
int ret = 0;
//printk("%s\n", __func__);
max_chg = kzalloc(sizeof(struct max8903_struct), GFP_KERNEL);
if (max_chg == NULL) {
dev_err(dev, "Cannot allocate memory.\n");
return -ENOMEM;
}
saved_msm_chg = max_chg;
if (pdata == NULL) {
dev_err(&pdev->dev, "%s no platform data\n", __func__);
ret = -EINVAL;
goto out;
}
INIT_DELAYED_WORK(&max_chg->charge_work, max8903_charge);
INIT_DELAYED_WORK(&max_chg->ac_charger, ac_charger_detect);
wake_lock_init(&max_chg->wl, WAKE_LOCK_SUSPEND, "max8903");
max_chg->dev = &pdev->dev;;
max_chg->irq = pdata->irq;
max_chg->cen = pdata->cen;
max_chg->chg = pdata->chg;
max_chg->flt = pdata->flt;
max_chg->usus = pdata->usus;
max_chg->dock_det = pdata->dock_det;
max_chg->usb_chg_enable = 1; /* enable usb charge */
if (BOARD_NUM(hw_ver) == BOARD_NUM_V11)
max_chg->adapter_hw_chg.type = CHG_TYPE_AC;
else
max_chg->adapter_hw_chg.type = CHG_TYPE_USB;
max_chg->adapter_hw_chg.rating = 2;
max_chg->adapter_hw_chg.name = "max8903-charger";
max_chg->adapter_hw_chg.start_charging = max8903_start_charging;
max_chg->adapter_hw_chg.stop_charging = max8903_stop_charging;
max_chg->adapter_hw_chg.charging_switched = max8903_charging_switched;
platform_set_drvdata(pdev, max_chg);
ret = gpio_request(max_chg->cen, "CHARGER_CEN_N");
if (ret) {
dev_err(max_chg->dev, "%s gpio_request failed for %d ret=%d\n",
__func__, max_chg->cen, ret);
goto free_max_chg;
}
ret = gpio_request(max_chg->chg, "CHARGER_STATUS");
if (ret) {
dev_err(max_chg->dev, "%s gpio_request failed for %d ret=%d\n",
__func__, max_chg->chg, ret);
goto free_cen;
}
gpio_direction_input(max_chg->chg);
ret = gpio_request(max_chg->flt, "CHARGER_FAULT_N");
if (ret) {
dev_err(max_chg->dev, "%s gpio_request failed for %d ret=%d\n",
__func__, max_chg->flt, ret);
goto free_chg;
}
gpio_direction_input(max_chg->flt);
ret = request_threaded_irq(gpio_to_irq(max_chg->flt),
NULL, max8903_fault,
IRQF_TRIGGER_FALLING ,"MAX8903 Fault", pdev);
if (ret) {
dev_err(dev, "Cannot request irq %d for Fault (%d)\n",
gpio_to_irq(max_chg->flt), ret);
goto free_flt;
}
ret = gpio_request(max_chg->usus, "USUS_CTRL");
if (ret) {
dev_err(max_chg->dev, "%s gpio_request failed for %d ret=%d\n",
__func__, max_chg->usus, ret);
goto err_flt_irq;
}
ret = gpio_request(max_chg->dock_det, "DOCK_DET");
if (ret) {
dev_err(max_chg->dev, "%s gpio_request failed for %d ret=%d\n",
__func__, max_chg->dock_det, ret);
goto free_usus;
}
gpio_direction_input(max_chg->dock_det);
ret = msm_charger_register(&max_chg->adapter_hw_chg);
if (ret) {
dev_err(max_chg->dev,
"%s msm_charger_register failed for ret =%d\n",
__func__, ret);
goto free_dock_det;
}
ret = device_create_file(max_chg->dev, &usb_chg_enable_attr);
if (ret) {
dev_err(max_chg->dev, "failed: create usb_chg_enable file\n");
}
ret = request_threaded_irq(max_chg->irq, NULL,
max_valid_handler,
IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
"max_valid_handler", pdev);
if (ret) {
dev_err(max_chg->dev,
"%s request_threaded_irq failed for %d ret =%d\n",
__func__, max_chg->irq, ret);
goto unregister;
}
set_irq_wake(max_chg->irq, 1);
chip = get_irq_data(max_chg->irq);
ret = pm8058_irq_get_rt_status(chip, max_chg->irq);
if (ret) {
#if 0
if (!gpio_get_value_cansleep(max_chg->dock_det)) /* Dock insert, think it as AC charger */
max_chg->adapter_hw_chg.type = CHG_TYPE_AC;
msm_charger_notify_event(&max_chg->adapter_hw_chg,
CHG_INSERTED_EVENT);
#else
/* Charger inserted, but not a valid USB charger
* think it as a AC charger
*/
if (USB_CHG_TYPE__INVALID == cur_chg_type)
max_chg->adapter_hw_chg.type = CHG_TYPE_AC;
msm_charger_notify_event(&max_chg->adapter_hw_chg,
CHG_INSERTED_EVENT);
#endif
max_chg->present = 1;
wake_lock(&max_chg->wl);
}
msm_register_usb_charger_state(max8903_usb_charger_state);
pr_info("%s OK chg_present=%d\n", __func__, max_chg->present);
return 0;
unregister:
msm_charger_unregister(&max_chg->adapter_hw_chg);
free_dock_det:
gpio_free(max_chg->dock_det);
free_usus:
gpio_free(max_chg->usus);
err_flt_irq:
free_irq(gpio_to_irq(max_chg->flt), pdev);
free_flt:
gpio_free(max_chg->flt);
free_chg:
gpio_free(max_chg->chg);
free_cen:
gpio_free(max_chg->cen);
free_max_chg:
kfree(max_chg);
out:
return ret;
}
