static int ucb1400_core_probe(struct device *dev)
{
int err;
struct ucb1400 *ucb;
struct ucb1400_ts ucb_ts;
struct snd_ac97 *ac97;
memset(&ucb_ts, 0, sizeof(ucb_ts));
ucb = kzalloc(sizeof(struct ucb1400), GFP_KERNEL);
if (!ucb) {
err = -ENOMEM;
goto err;
}
dev_set_drvdata(dev, ucb);
ac97 = to_ac97_t(dev);
ucb_ts.id = ucb1400_reg_read(ac97, UCB_ID);
if (ucb_ts.id != UCB_ID_1400) {
err = -ENODEV;
goto err0;
}
/* TOUCHSCREEN */
ucb_ts.ac97 = ac97;
ucb->ucb1400_ts = platform_device_alloc("ucb1400_ts", -1);
if (!ucb->ucb1400_ts) {
err = -ENOMEM;
goto err0;
}
err = platform_device_add_data(ucb->ucb1400_ts, &ucb_ts,
sizeof(ucb_ts));
if (err)
goto err1;
err = platform_device_add(ucb->ucb1400_ts);
if (err)
goto err1;
return 0;
err1:
platform_device_put(ucb->ucb1400_ts);
err0:
kfree(ucb);
err:
return err;
}
static int ucb1400_ts_probe(struct device *dev)
{
struct ucb1400 *ucb;
struct input_dev *idev;
int error, id, x_res, y_res;
ucb = kzalloc(sizeof(struct ucb1400), GFP_KERNEL);
idev = input_allocate_device();
if (!ucb || !idev) {
error = -ENOMEM;
goto err_free_devs;
}
ucb->ts_task = NULL;
ucb->ts_idev = idev;
ucb->adcsync = adcsync;
ucb->ac97 = to_ac97_t(dev);
init_waitqueue_head(&ucb->ts_wait);
id = ucb1400_reg_read(ucb, UCB_ID);
if (id != UCB_ID_1400) {
error = -ENODEV;
goto err_free_devs;
}
error = ucb1400_detect_irq(ucb);
if (error) {
printk(KERN_ERR "UCB1400: IRQ probe failed\n");
goto err_free_devs;
}
error = request_irq(ucb->irq, ucb1400_hard_irq, IRQF_TRIGGER_RISING,
"UCB1400", ucb);
if (error) {
printk(KERN_ERR "ucb1400: unable to grab irq%d: %d\n",
ucb->irq, error);
goto err_free_devs;
}
printk(KERN_DEBUG "UCB1400: found IRQ %d\n", ucb->irq);
input_set_drvdata(idev, ucb);
idev->dev.parent = dev;
idev->name = "UCB1400 touchscreen interface";
idev->id.vendor = ucb1400_reg_read(ucb, AC97_VENDOR_ID1);
idev->id.product = id;
idev->open = ucb1400_ts_open;
idev->close = ucb1400_ts_close;
idev->evbit[0] = BIT(EV_ABS);
ucb1400_adc_enable(ucb);
x_res = ucb1400_ts_read_xres(ucb);
y_res = ucb1400_ts_read_yres(ucb);
ucb1400_adc_disable(ucb);
printk(KERN_DEBUG "UCB1400: x/y = %d/%d\n", x_res, y_res);
idev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
idev->keybit[LONG(BTN_TOUCH)] = BIT(BTN_TOUCH);
input_set_abs_params(idev, ABS_X, 0, x_res, 0, 0);
input_set_abs_params(idev, ABS_Y, 0, y_res, 0, 0);
input_set_abs_params(idev, ABS_PRESSURE, 0, 0, 0, 0);
error = input_register_device(idev);
if (error)
goto err_free_irq;
dev_set_drvdata(dev, ucb);
return 0;
err_free_irq:
free_irq(ucb->irq, ucb);
err_free_devs:
input_free_device(idev);
kfree(ucb);
return error;
}
static int ucb1400_core_probe(struct device *dev)
{
int err;
struct ucb1400 *ucb;
struct ucb1400_ts ucb_ts;
struct ucb1400_gpio ucb_gpio;
struct snd_ac97 *ac97;
struct ucb1400_pdata *pdata = dev->platform_data;
memset(&ucb_ts, 0, sizeof(ucb_ts));
memset(&ucb_gpio, 0, sizeof(ucb_gpio));
ucb = kzalloc(sizeof(struct ucb1400), GFP_KERNEL);
if (!ucb) {
err = -ENOMEM;
goto err;
}
dev_set_drvdata(dev, ucb);
ac97 = to_ac97_t(dev);
ucb_ts.id = ucb1400_reg_read(ac97, UCB_ID);
if (ucb_ts.id != UCB_ID_1400) {
err = -ENODEV;
goto err0;
}
/* GPIO */
ucb_gpio.ac97 = ac97;
ucb->ucb1400_gpio = platform_device_alloc("ucb1400_gpio", -1);
if (!ucb->ucb1400_gpio) {
err = -ENOMEM;
goto err0;
}
err = platform_device_add_data(ucb->ucb1400_gpio, &ucb_gpio,
sizeof(ucb_gpio));
if (err)
goto err1;
err = platform_device_add(ucb->ucb1400_gpio);
if (err)
goto err1;
/* TOUCHSCREEN */
ucb_ts.ac97 = ac97;
if (pdata != NULL && pdata->irq >= 0)
ucb_ts.irq = pdata->irq;
else
ucb_ts.irq = -1;
ucb->ucb1400_ts = platform_device_alloc("ucb1400_ts", -1);
if (!ucb->ucb1400_ts) {
err = -ENOMEM;
goto err2;
}
err = platform_device_add_data(ucb->ucb1400_ts, &ucb_ts,
sizeof(ucb_ts));
if (err)
goto err3;
err = platform_device_add(ucb->ucb1400_ts);
if (err)
goto err3;
return 0;
err3:
platform_device_put(ucb->ucb1400_ts);
err2:
platform_device_unregister(ucb->ucb1400_gpio);
err1:
platform_device_put(ucb->ucb1400_gpio);
err0:
kfree(ucb);
err:
return err;
}