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path: root/drivers/input/touchscreen/corgi_ts.c
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Diffstat (limited to 'drivers/input/touchscreen/corgi_ts.c')
-rw-r--r--drivers/input/touchscreen/corgi_ts.c127
1 files changed, 63 insertions, 64 deletions
diff --git a/drivers/input/touchscreen/corgi_ts.c b/drivers/input/touchscreen/corgi_ts.c
index 4c7fbe55036..0ba3e6562bf 100644
--- a/drivers/input/touchscreen/corgi_ts.c
+++ b/drivers/input/touchscreen/corgi_ts.c
@@ -41,8 +41,7 @@ struct ts_event {
};
struct corgi_ts {
- char phys[32];
- struct input_dev input;
+ struct input_dev *input;
struct timer_list timer;
struct ts_event tc;
int pendown;
@@ -182,14 +181,12 @@ static void new_data(struct corgi_ts *corgi_ts, struct pt_regs *regs)
if (!corgi_ts->tc.pressure && corgi_ts->pendown == 0)
return;
- if (regs)
- input_regs(&corgi_ts->input, regs);
-
- input_report_abs(&corgi_ts->input, ABS_X, corgi_ts->tc.x);
- input_report_abs(&corgi_ts->input, ABS_Y, corgi_ts->tc.y);
- input_report_abs(&corgi_ts->input, ABS_PRESSURE, corgi_ts->tc.pressure);
- input_report_key(&corgi_ts->input, BTN_TOUCH, (corgi_ts->pendown != 0));
- input_sync(&corgi_ts->input);
+ input_regs(corgi_ts->input, regs);
+ input_report_abs(corgi_ts->input, ABS_X, corgi_ts->tc.x);
+ input_report_abs(corgi_ts->input, ABS_Y, corgi_ts->tc.y);
+ input_report_abs(corgi_ts->input, ABS_PRESSURE, corgi_ts->tc.pressure);
+ input_report_key(corgi_ts->input, BTN_TOUCH, (corgi_ts->pendown != 0));
+ input_sync(corgi_ts->input);
}
static void ts_interrupt_main(struct corgi_ts *corgi_ts, int isTimer, struct pt_regs *regs)
@@ -234,34 +231,32 @@ static irqreturn_t ts_interrupt(int irq, void *dev_id, struct pt_regs *regs)
}
#ifdef CONFIG_PM
-static int corgits_suspend(struct device *dev, pm_message_t state, uint32_t level)
+static int corgits_suspend(struct device *dev, pm_message_t state)
{
- if (level == SUSPEND_POWER_DOWN) {
- struct corgi_ts *corgi_ts = dev_get_drvdata(dev);
-
- if (corgi_ts->pendown) {
- del_timer_sync(&corgi_ts->timer);
- corgi_ts->tc.pressure = 0;
- new_data(corgi_ts, NULL);
- corgi_ts->pendown = 0;
- }
- corgi_ts->power_mode = PWR_MODE_SUSPEND;
+ struct corgi_ts *corgi_ts = dev_get_drvdata(dev);
- corgi_ssp_ads7846_putget((1u << ADSCTRL_ADR_SH) | ADSCTRL_STS);
+ if (corgi_ts->pendown) {
+ del_timer_sync(&corgi_ts->timer);
+ corgi_ts->tc.pressure = 0;
+ new_data(corgi_ts, NULL);
+ corgi_ts->pendown = 0;
}
+ corgi_ts->power_mode = PWR_MODE_SUSPEND;
+
+ corgi_ssp_ads7846_putget((1u << ADSCTRL_ADR_SH) | ADSCTRL_STS);
+
return 0;
}
-static int corgits_resume(struct device *dev, uint32_t level)
+static int corgits_resume(struct device *dev)
{
- if (level == RESUME_POWER_ON) {
- struct corgi_ts *corgi_ts = dev_get_drvdata(dev);
+ struct corgi_ts *corgi_ts = dev_get_drvdata(dev);
+
+ corgi_ssp_ads7846_putget((4u << ADSCTRL_ADR_SH) | ADSCTRL_STS);
+ /* Enable Falling Edge */
+ set_irq_type(corgi_ts->irq_gpio, IRQT_FALLING);
+ corgi_ts->power_mode = PWR_MODE_ACTIVE;
- corgi_ssp_ads7846_putget((4u << ADSCTRL_ADR_SH) | ADSCTRL_STS);
- /* Enable Falling Edge */
- set_irq_type(corgi_ts->irq_gpio, IRQT_FALLING);
- corgi_ts->power_mode = PWR_MODE_ACTIVE;
- }
return 0;
}
#else
@@ -273,39 +268,44 @@ static int __init corgits_probe(struct device *dev)
{
struct corgi_ts *corgi_ts;
struct platform_device *pdev = to_platform_device(dev);
+ struct input_dev *input_dev;
+ int err = -ENOMEM;
- if (!(corgi_ts = kmalloc(sizeof(struct corgi_ts), GFP_KERNEL)))
- return -ENOMEM;
+ corgi_ts = kzalloc(sizeof(struct corgi_ts), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!corgi_ts || !input_dev)
+ goto fail;
dev_set_drvdata(dev, corgi_ts);
- memset(corgi_ts, 0, sizeof(struct corgi_ts));
-
corgi_ts->machinfo = dev->platform_data;
corgi_ts->irq_gpio = platform_get_irq(pdev, 0);
if (corgi_ts->irq_gpio < 0) {
- kfree(corgi_ts);
- return -ENODEV;
+ err = -ENODEV;
+ goto fail;
}
- init_input_dev(&corgi_ts->input);
- corgi_ts->input.evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
- corgi_ts->input.keybit[LONG(BTN_TOUCH)] = BIT(BTN_TOUCH);
- input_set_abs_params(&corgi_ts->input, ABS_X, X_AXIS_MIN, X_AXIS_MAX, 0, 0);
- input_set_abs_params(&corgi_ts->input, ABS_Y, Y_AXIS_MIN, Y_AXIS_MAX, 0, 0);
- input_set_abs_params(&corgi_ts->input, ABS_PRESSURE, PRESSURE_MIN, PRESSURE_MAX, 0, 0);
+ corgi_ts->input = input_dev;
- strcpy(corgi_ts->phys, "corgits/input0");
+ init_timer(&corgi_ts->timer);
+ corgi_ts->timer.data = (unsigned long) corgi_ts;
+ corgi_ts->timer.function = corgi_ts_timer;
- corgi_ts->input.private = corgi_ts;
- corgi_ts->input.name = "Corgi Touchscreen";
- corgi_ts->input.dev = dev;
- corgi_ts->input.phys = corgi_ts->phys;
- corgi_ts->input.id.bustype = BUS_HOST;
- corgi_ts->input.id.vendor = 0x0001;
- corgi_ts->input.id.product = 0x0002;
- corgi_ts->input.id.version = 0x0100;
+ input_dev->name = "Corgi Touchscreen";
+ input_dev->phys = "corgits/input0";
+ input_dev->id.bustype = BUS_HOST;
+ input_dev->id.vendor = 0x0001;
+ input_dev->id.product = 0x0002;
+ input_dev->id.version = 0x0100;
+ input_dev->cdev.dev = dev;
+ input_dev->private = corgi_ts;
+
+ input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
+ input_dev->keybit[LONG(BTN_TOUCH)] = BIT(BTN_TOUCH);
+ input_set_abs_params(input_dev, ABS_X, X_AXIS_MIN, X_AXIS_MAX, 0, 0);
+ input_set_abs_params(input_dev, ABS_Y, Y_AXIS_MIN, Y_AXIS_MAX, 0, 0);
+ input_set_abs_params(input_dev, ABS_PRESSURE, PRESSURE_MIN, PRESSURE_MAX, 0, 0);
pxa_gpio_mode(IRQ_TO_GPIO(corgi_ts->irq_gpio) | GPIO_IN);
@@ -319,25 +319,24 @@ static int __init corgits_probe(struct device *dev)
corgi_ssp_ads7846_putget((5u << ADSCTRL_ADR_SH) | ADSCTRL_STS);
mdelay(5);
- init_timer(&corgi_ts->timer);
- corgi_ts->timer.data = (unsigned long) corgi_ts;
- corgi_ts->timer.function = corgi_ts_timer;
-
- input_register_device(&corgi_ts->input);
- corgi_ts->power_mode = PWR_MODE_ACTIVE;
-
if (request_irq(corgi_ts->irq_gpio, ts_interrupt, SA_INTERRUPT, "ts", corgi_ts)) {
- input_unregister_device(&corgi_ts->input);
- kfree(corgi_ts);
- return -EBUSY;
+ err = -EBUSY;
+ goto fail;
}
+ input_register_device(corgi_ts->input);
+
+ corgi_ts->power_mode = PWR_MODE_ACTIVE;
+
/* Enable Falling Edge */
set_irq_type(corgi_ts->irq_gpio, IRQT_FALLING);
- printk(KERN_INFO "input: Corgi Touchscreen Registered\n");
-
return 0;
+
+ fail: input_free_device(input_dev);
+ kfree(corgi_ts);
+ return err;
+
}
static int corgits_remove(struct device *dev)
@@ -347,7 +346,7 @@ static int corgits_remove(struct device *dev)
free_irq(corgi_ts->irq_gpio, NULL);
del_timer_sync(&corgi_ts->timer);
corgi_ts->machinfo->put_hsync();
- input_unregister_device(&corgi_ts->input);
+ input_unregister_device(corgi_ts->input);
kfree(corgi_ts);
return 0;
}
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-22 05:10:37 +0000