Changed SJA1000 chip IRQ handling to loop until all requests are served

[lincan.git] / lincan / include / constants.h

diff --git a/lincan/include/constants.h b/lincan/include/constants.h
index d5c66d90d37e6dd16600f59e77574c60ed0629f4..327e5ef48427e21e17acfbf084fa8768646d6284 100644 (file)
--- a/lincan/include/constants.h
+++ b/lincan/include/constants.h
@@ -72,12 +72,21 @@
   test_and_clear_bit(MSGOBJ_##obj_fl##_b,&(obj)->obj_flags)
 
 
-/* These flags can be used for the chip_t structure flags data entry */
-#define CHIP_CONFIGURED  (1<<0)
-#define CHIP_SEGMENTED   (1<<1)
-#define CHIP_IRQ_SETUP   (1<<2)
-#define CHIP_IRQ_PCI     (1<<3)
-#define CHIP_IRQ_VME     (1<<4)
+/* These flags can be used for the canchip_t structure flags data entry */
+#define CHIP_CONFIGURED  (1<<0)  /* chip is configured and prepared for communication */
+#define CHIP_SEGMENTED   (1<<1)  /* segmented access, ex: i82527 with 16 byte window*/
+#define CHIP_IRQ_SETUP   (1<<2)  /* IRQ handler has been set */
+#define CHIP_IRQ_PCI     (1<<3)  /* chip is on PCI board and uses PCI interrupt  */
+#define CHIP_IRQ_VME     (1<<4)  /* interrupt is VME bus and requires VME bridge */
+#define CHIP_IRQ_CUSTOM  (1<<5)  /* custom interrupt provided by board or chip code */
+#define CHIP_IRQ_FAST    (1<<6)  /* interrupt handler only schedules postponed processing */
+
+#define CHIP_MAX_IRQLOOP 1000
+
+/* System independent defines of IRQ handled state */
+#define CANCHIP_IRQ_NONE    0
+#define CANCHIP_IRQ_HANDLED 1
+#define CANCHIP_IRQ_STUCK   2
 
 /* These flags can be used for the candevices_t structure flags data entry */
 #define CANDEV_PROGRAMMABLE_IRQ (1<<0)