#ifdef CONFIG_SENSORS_AD7414
-static LIST_HEAD(dtm_shutdown_list);
static void __iomem *dtm_fpga;
-struct dtm_shutdown {
- struct list_head list;
- void (*func)(void *arg);
- void *arg;
-};
-
-int pika_dtm_register_shutdown(void (*func)(void *arg), void *arg)
-{
- struct dtm_shutdown *shutdown;
-
- shutdown = kmalloc(sizeof(struct dtm_shutdown), GFP_KERNEL);
- if (shutdown == NULL)
- return -ENOMEM;
-
- shutdown->func = func;
- shutdown->arg = arg;
-
- list_add(&shutdown->list, &dtm_shutdown_list);
-
- return 0;
-}
-
-int pika_dtm_unregister_shutdown(void (*func)(void *arg), void *arg)
-{
- struct dtm_shutdown *shutdown;
-
- list_for_each_entry(shutdown, &dtm_shutdown_list, list)
- if (shutdown->func == func && shutdown->arg == arg) {
- list_del(&shutdown->list);
- kfree(shutdown);
- return 0;
- }
-
- return -EINVAL;
-}
-
#define WARP_GREEN_LED 0
#define WARP_RED_LED 1
static irqreturn_t temp_isr(int irq, void *context)
{
- struct dtm_shutdown *shutdown;
int value = 1;
local_irq_disable();
gpiod_set_value(warp_gpio_led_pins[WARP_GREEN_LED].gpiod, 0);
- /* Run through the shutdown list. */
- list_for_each_entry(shutdown, &dtm_shutdown_list, list)
- shutdown->func(shutdown->arg);
-
printk(KERN_EMERG "\n\nCritical Temperature Shutdown\n\n");
while (1) {
#else /* !CONFIG_SENSORS_AD7414 */
-int pika_dtm_register_shutdown(void (*func)(void *arg), void *arg)
-{
- return 0;
-}
-
-int pika_dtm_unregister_shutdown(void (*func)(void *arg), void *arg)
-{
- return 0;
-}
-
machine_late_initcall(warp, warp_post_info);
#endif
-
-EXPORT_SYMBOL(pika_dtm_register_shutdown);
-EXPORT_SYMBOL(pika_dtm_unregister_shutdown);