+
+#if defined(CONFIG_OC_LINCAN_PORTIO_ONLY)
+extern inline void can_write_reg(const struct canchip_t *chip, unsigned char data, unsigned reg_offs)
+{
+ can_outb(data, chip->chip_base_addr+reg_offs);
+}
+extern inline unsigned can_read_reg(const struct canchip_t *chip, unsigned reg_offs)
+{
+ return can_inb(chip->chip_base_addr+reg_offs);
+}
+extern inline void canobj_write_reg(const struct canchip_t *chip, const struct msgobj_t *obj,
+ unsigned char data, unsigned reg_offs)
+{
+ can_outb(data, obj->obj_base_addr+reg_offs);
+}
+extern inline unsigned canobj_read_reg(const struct canchip_t *chip, const struct msgobj_t *obj,
+ unsigned reg_offs)
+{
+ return can_inb(obj->obj_base_addr+reg_offs);
+}
+
+#elif defined(CONFIG_OC_LINCAN_MEMIO_ONLY)
+extern inline void can_write_reg(const struct canchip_t *chip, unsigned char data, unsigned reg_offs)
+{
+ can_writeb(data, chip->chip_base_addr+reg_offs);
+}
+extern inline unsigned can_read_reg(const struct canchip_t *chip, unsigned reg_offs)
+{
+ return can_readb(chip->chip_base_addr+reg_offs);
+}
+extern inline void canobj_write_reg(const struct canchip_t *chip, const struct msgobj_t *obj,
+ unsigned char data, unsigned reg_offs)
+{
+ can_writeb(data, obj->obj_base_addr+reg_offs);
+}
+extern inline unsigned canobj_read_reg(const struct canchip_t *chip, const struct msgobj_t *obj,
+ unsigned reg_offs)
+{
+ return can_readb(obj->obj_base_addr+reg_offs);
+}
+
+#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 reg_offs is
+ * relative to the memory map of the chip and not the absolute memory reg_offs.