// deconfigure IOX and GPIO
void deconfigure_module(struct bmi_li3m02cm *cam)
{
int slot = cam->bdev->slot->slotnum;
bmi_slot_gpio_direction_in(slot, 3);
bmi_slot_gpio_direction_in(slot, 2);
bmi_slot_gpio_direction_in(slot, 1);
}
/*
* Function is called when the video module hardwrae is physically removed
*/
void bmi_video_remove(struct bmi_device *bdev)
{
int irq;
int i;
int slot;
struct bmi_video *video;
struct class *bmi_class;
static struct omap_dss_device *dssdev;
printk(KERN_DEBUG "bmi_video: Module Removed...\n");
//Would turn LED red, but we can't trust the HW is connected still
slot = bdev->slot->slotnum;
video = &g_bmi_video;
//removals have known unwind errors iff rmmod bmi_video_core while
//device is plugged in
device_remove_file(&bdev->dev, &dev_attr_vmode);
device_remove_file(&bdev->dev, &dev_attr_vga_edid);
device_remove_file(&bdev->dev, &dev_attr_dvi_edid);
bmi_class = bmi_get_class ();
device_destroy (bmi_class, MKDEV(major, slot));
// -- disable displays
monitors_off_safe(video);//safe for missing HW
// -- disable all displays
for_each_dss_dev(dssdev) {
omap_dss_get_device(dssdev);
if (dssdev->state)
dssdev->driver->disable(dssdev);
}
if(video->swap_eeprom){
//we are just 'borrowing' this pointer,
//do not unregister! see bmi_video_probe.
video->swap_eeprom = NULL;
video->swap_eeprom_state = OFF;
}
if(video->eeprom_switch) {
i2c_unregister_device(video->eeprom_switch);
video->eeprom_switch = NULL;
}
if(video->gpio_controller) {
//dbg_unexport_gpios_to_sysfs();
gpio_free_array(vid_gpios, ARRAY_SIZE(vid_gpios));
i2c_unregister_device(video->gpio_controller);
video->gpio_controller= NULL;
}
if(video->dvi_controller) {
i2c_unregister_device(video->dvi_controller);
video->dvi_controller = NULL;
}
printk(KERN_INFO "bmi_video: 9\n");
if(video->vga_controller) {
i2c_unregister_device(video->vga_controller);
video->vga_controller = NULL;
}
irq = bdev->slot->status_irq;
// -- legacy vodoo code. Left in for safety
for (i = 0; i < 4; i++)
bmi_slot_gpio_direction_in(slot, i);
if (video->vga_monitor_edid) {
kfree(video->vga_monitor_edid); //created by a library. we must free
video->vga_monitor_edid = NULL;
}
if (video->dvi_monitor_edid) {
kfree(video->dvi_monitor_edid); //created by a library. we must free
video->dvi_monitor_edid = NULL;
}
//just in case, clear the global
g_dvi_disp = NULL;
g_vga_disp = NULL;
video->class_dev = 0;
// de-attach driver-specific struct from bmi_device structure
bmi_device_set_drvdata (bdev, 0);
video->bdev = 0;
printk(KERN_INFO "bmi_video_remove done ");
return; //Clean, squeaky clean
}
