int lcd_init(lcd_t *lcd, ssp_port_t ssp_port, pin_t cs, pin_t rs, pin_t rw, pin_t e)
{
lcd->ssp = ssp_port.ssp;
lcd->cs = cs;
lcd->rs = rs;
lcd->rw = rw;
lcd->e = e;
//lcd->type = COM8BITS;
gpio_config(cs, pin_dir_write, pull_up);
gpio_set(cs, 1);
gpio_config(rs, pin_dir_write, pull_down);
gpio_set(rs, 0);
gpio_config(rw, pin_dir_write, pull_down);
gpio_set(rw, 0);
gpio_config(e, pin_dir_write, pull_down);
gpio_set(e, 0);
ssp_config(ssp_port, 8 * 1000 * 1000);
delay(lcd, 1000);
lcd_clear_display(lcd);
lcd_return_home(lcd);
lcd_set_display(lcd,1, 1, 1);
return 1;
}
static int ad_probe(struct platform_device *pdev)
{
struct ad7877_platform_data *pdata = pdev->dev.platform_data;
struct ad7877 *ad;
int ret;
int i;
// Initialize ad data structure.
ad = kzalloc(sizeof(*ad), GFP_KERNEL);
if (!ad)
return -ENOMEM;
init_completion(&ad->comp);
ret = request_irq(pdata->dav_irq, davirq
, IRQF_DISABLED | IRQF_TRIGGER_FALLING
, "ad7877-dav", ad);
if (ret) {
kfree(ad);
return ret;
}
ret = ssp_init(&ad->ssp, 1, 0);
if (ret) {
printk(KERN_ERR "Unable to register SSP handler!\n");
free_irq(pdata->dav_irq, ad);
kfree(ad);
return ret;
}
platform_set_drvdata(pdev, ad);
ssp_disable(&ad->ssp);
ssp_config(&ad->ssp, SSCR0_DataSize(16), 0, 0, SSCR0_SerClkDiv(6));
ssp_enable(&ad->ssp);
initChip(ad);
for (i = 0; i < ARRAY_SIZE(acdevs); i++) {
acdevs[i].sense = sense;
ret = adc_classdev_register(&pdev->dev, &acdevs[i]);
if (ret) {
printk("ad7877: failed to register adc class "
"device %s\n", acdevs[i].name);
goto adc_cdev_register_failed;
}
}
return 0;
adc_cdev_register_failed:
while (--i >= 0)
adc_classdev_unregister(&acdevs[i]);
return ret;
}
static int __init a716_ssp_probe(struct platform_device *pdev)
{
int ret;
if (!machine_is_a716()) {
return -ENODEV;
}
a716_gpo_set(0x4000);
ret = ssp_init(&a716_ssp_dev, 1, 0);
if (ret) {
printk(KERN_ERR "Unable to register SSP handler!\n");
return ret;
} else {
ssp_disable(&a716_ssp_dev);
ssp_config(&a716_ssp_dev, (SSCR0_National | 0x0b), 0, 0, SSCR0_SerClkDiv(36));
ssp_enable(&a716_ssp_dev);
}
a716_ssp_putget(CTRL_YPOS | CTRL_START);
mdelay(1);
a716_ssp_putget(CTRL_Z1POS | CTRL_START);
mdelay(1);
a716_ssp_putget(CTRL_Z2POS | CTRL_START);
mdelay(1);
a716_ssp_putget(CTRL_XPOS | CTRL_START);
init_timer(&timer_pen);
timer_pen.function = a716_ts_timer;
timer_pen.data = (unsigned long)NULL;
idev = input_allocate_device();
if (!idev)
return -ENOMEM;
idev->name = "ad7873";
idev->phys = "touchscreen/ad7873";
set_bit(EV_ABS, idev->evbit);
set_bit(EV_KEY, idev->evbit);
set_bit(ABS_X, idev->absbit);
set_bit(ABS_Y, idev->absbit);
set_bit(ABS_PRESSURE, idev->absbit);
set_bit(BTN_TOUCH, idev->keybit);
idev->absmax[ABS_PRESSURE] = 1;
idev->absmin[ABS_X] = 212;
idev->absmin[ABS_Y] = 180;
idev->absmax[ABS_X] = 3880;
idev->absmax[ABS_Y] = 3940;
input_register_device(idev);
touch_pressed = 0;
irq_disable = 0;
set_irq_type(IRQ_GPIO(GPIO_NR_A716_STYLUS_IRQ_N), IRQT_FALLING);
request_irq(IRQ_GPIO(GPIO_NR_A716_STYLUS_IRQ_N), a716_stylus, SA_SAMPLE_RANDOM, "ad7873 stylus", NULL);
return 0;
}
