static ssize_t sfh7225_sense_light(struct device *dev,
struct device_attribute *attr, char *buf)
{
u8 lightvalue, auto_control, man_control, man_control_orig;
int status = -EINVAL;
/*ensure ADC is enabled*/
micco_read(MICCO_ADC_MAN_CONTROL, &man_control_orig);
if (!(man_control_orig & 0x10)) {
man_control = man_control_orig | 0x10;
if (micco_write(MICCO_ADC_MAN_CONTROL, man_control))
goto cleanup;
}
/*ensure AUTO5 is enabled*/
micco_read(MICCO_ADC_AUTO_CONTROL_2, &auto_control);
if (!(auto_control & 0x02)) {
auto_control |= 0x02;
if (micco_write(MICCO_ADC_AUTO_CONTROL_2, auto_control))
goto cleanup;
}
if (micco_read(MICCO_AUTO5_RES, &lightvalue))
goto cleanup;
status = sprintf(buf, "%u\n", lightvalue);
if (!(man_control_orig & 0x10))
micco_write(MICCO_ADC_MAN_CONTROL, man_control_orig);
cleanup:
if (status < 0)
printk(KERN_WARNING "sfh7225_sense_light failed\n");
return status;
}
static void micco_init(void)
{
u8 value;
/* Mask interrupts that are not needed */
micco_write(MICCO_IRQ_MASK_A, 0xFE);
micco_write(MICCO_IRQ_MASK_B, 0xFF);
micco_write(MICCO_IRQ_MASK_C, 0xFF);
micco_write(MICCO_IRQ_MASK_D, 0xFF);
/* avoid SRAM power off during sleep*/
micco_write(0x10, 0x07);
micco_write(0x11, 0xff);
//micco_write(0x12, 0xbf);/*never enable LDO4: CP controls it via COMM_OVER3 reg (0x22)*/
/* Enable the ONKEY power down functionality */
micco_write(MICCO_SYSCTRL_B, 0x20);
micco_write(MICCO_SYSCTRL_A, 0x60);
/* IRQ is masked during the power-up sequence and will not be released
* until they have been read for the first time */
micco_read(MICCO_EVENT_A, &value);
micco_read(MICCO_EVENT_B, &value);
micco_read(MICCO_EVENT_C, &value);
micco_read(MICCO_EVENT_D, &value);
}
static int lt_ts_suspend(struct platform_device *pdev, pm_message_t state)
{
struct lt_touch_data *p_lt_touch = (struct lt_touch_data *)platform_get_drvdata(pdev);
p_lt_touch->suspended = 1;
lt_touch_enable_stage(TSI_STAGE_OFF);
micco_write(MICCO_ADC_AUTO_CONTROL_2, 0);
return 0;
}
static int lt_ts_resume(struct platform_device *pdev)
{
struct lt_touch_data *p_lt_touch = (struct lt_touch_data *)platform_get_drvdata(pdev);
micco_write(MICCO_ADC_AUTO_CONTROL_2, MICCO_ADC_AUTO_2_PENDET_EN);
lt_touch_enable_stage(TSI_STAGE_DETECT);
p_lt_touch->suspended = 0;
mod_timer(&p_lt_touch->lt_touch_timer, jiffies+HZ);/* timer for read to trigger irq */
return 0;
}
static int micco_enable_rtc_alarm_irq(int enable)
{
int ret;
u8 val;
ret = micco_read(MICCO_IRQ_MASK_A, &val);
if (enable) { /* enable Alarm IRQ */
val &= ~(IRQ_MASK_A_EXTON);
} else { /* disable Alarm IRQ */
val |= (IRQ_MASK_A_EXTON);
}
ret += micco_write(MICCO_IRQ_MASK_A, val);
return ret;
}
