Implemented selection of simplified IO access methods (port or mem only).

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

diff --git a/lincan/include/main.h b/lincan/include/main.h
index 2fa81ced2d4dc640e6e9eaa363ad73dfc111fd5a..f92d1c4a700d2112eff25bf1ac355d84fa093da4 100644 (file)
--- a/lincan/include/main.h
+++ b/lincan/include/main.h
@@ -11,6 +11,7 @@
 #include "./constants.h"
 #include "./can_sysdep.h"
 #include "./can_queue.h"
+#include "lincan_config.h"
 
 #ifdef CAN_DEBUG
        #define DEBUGMSG(fmt,args...) can_printk(KERN_ERR "can.o (debug): " fmt,\
@@ -373,6 +374,52 @@ extern struct msgobj_t *objects_p[MAX_TOT_MSGOBJS];
 
 extern struct mem_addr *mem_head;
 
+
+#if defined(CONFIG_OC_LINCAN_PORTIO_ONLY)
+extern inline void can_write_reg(const struct chip_t *chip, unsigned char data, unsigned address)
+{
+       outb(data, chip->chip_base_addr+address);
+}
+extern inline unsigned can_read_reg(const struct chip_t *chip, unsigned address)
+{
+       return inb(chip->chip_base_addr+address);
+}
+extern inline void canobj_write_reg(const struct chip_t *chip, const struct msgobj_t *obj,
+                               unsigned char data, unsigned address)
+{
+       outb(data, obj->obj_base_addr+address);
+}
+extern inline unsigned canobj_read_reg(const struct chip_t *chip, const struct msgobj_t *obj,
+                               unsigned address)
+{
+       return inb(obj->obj_base_addr+address);
+}
+
+#elif defined(CONFIG_OC_LINCAN_MEMIO_ONLY)
+extern inline void can_write_reg(const struct chip_t *chip, unsigned char data, unsigned address)
+{
+       writeb(data, chip->chip_base_addr+address);
+}
+extern inline unsigned can_read_reg(const struct chip_t *chip, unsigned address)
+{
+       return readb(chip->chip_base_addr+address);
+}
+extern inline void canobj_write_reg(const struct chip_t *chip, const struct msgobj_t *obj,
+                               unsigned char data, unsigned address)
+{
+       writeb(data, obj->obj_base_addr+address);
+}
+extern inline unsigned canobj_read_reg(const struct chip_t *chip, const struct msgobj_t *obj,
+                               unsigned address)
+{
+       return readb(obj->obj_base_addr+address);
+}
+
+#else /*CONFIG_OC_LINCAN_DYNAMICIO*/
+#ifndef CONFIG_OC_LINCAN_DYNAMICIO
+#define CONFIG_OC_LINCAN_DYNAMICIO
+#endif
+
 /* Inline function to write to the hardware registers. The argument address is 
  * relative to the memory map of the chip and not the absolute memory address.
  */
@@ -406,6 +453,8 @@ extern inline unsigned canobj_read_reg(const struct chip_t *chip, const struct m
        return chip->read_register(address_to_read);
 }
 
+#endif /*CONFIG_OC_LINCAN_DYNAMICIO*/
+
 int can_base_addr_fixup(struct candevice_t *candev, unsigned long new_base);
 int can_request_io_region(unsigned long start, unsigned long n, const char *name);
 void can_release_io_region(unsigned long start, unsigned long n);