int nr_all_chips;
int nr_82527_chips;
int nr_sja1000_chips;
+ int nr_mcp2515_chips;
can_spinlock_t device_lock;
struct canchip_t *chip[MAX_HW_CHIPS];
void (*write_register)(unsigned data, can_ioptr_t address);
unsigned (*read_register)(can_ioptr_t address);
+ /* SPI / mcp2515 specific */
+ int (*spi_acquire_bus)(struct candevice_t *candev, short channel, int block);
+ void (*spi_release_bus)(struct candevice_t *candev, short channel);
+ int (*spi_transfer)(struct candevice_t *candev, void *tx, void *rx, uint16_t len);
+ short spi_channel;
+
+
void *chip_data;
unsigned short sja_cdr_reg; /* sja1000 only! */
int (*program_irq)(struct candevice_t *candev);
void (*write_register)(unsigned data, can_ioptr_t address);
unsigned (*read_register)(can_ioptr_t address);
+ int (*spi_acquire_bus)(struct candevice_t *candev, short channel, int block);
+ void (*spi_release_bus)(struct candevice_t *candev, short channel);
+ int (*spi_transfer)(struct candevice_t *candev, void *tx, void *rx, uint16_t len);
};
/**
* @stop_chip: stops chip message processing
* @irq_handler: interrupt service routine
* @irq_accept: optional fast irq accept routine responsible for blocking further interrupts
+ * @get_info: retrieve chp-specifc info for display in proc fs
*/
struct chipspecops_t {
int (*chip_config)(struct canchip_t *chip);
int (*stop_chip)(struct canchip_t *chip);
int (*irq_handler)(int irq, struct canchip_t *chip);
int (*irq_accept)(int irq, struct canchip_t *chip);
+ int (*reset_chip)(struct canchip_t *chip);
+ int (*get_info)(struct canchip_t *chip, char *buf);
};
struct mem_addr {
return chip->read_register(address_to_read);
}
+extern inline int can_spi_transfer(struct canchip_t *chip, void *tx, void *rx, uint16_t len)
+{
+ return chip->spi_transfer(chip->hostdevice, tx, rx, len);
+}
+
+extern inline int can_spi_acquire_bus(struct canchip_t *chip, int block)
+{
+ return chip->spi_acquire_bus(chip->hostdevice, chip->spi_channel, block);
+}
+
+extern inline void can_spi_release_bus(struct canchip_t *chip)
+{
+ chip->spi_release_bus(chip->hostdevice, chip->spi_channel);
+}
+
+
+
extern inline void canobj_write_reg(const struct canchip_t *chip, const struct msgobj_t *obj,
unsigned char data, unsigned reg_offs)
{
extern int can_rtl_priority;
#endif /*CAN_WITH_RTL*/
-extern struct candevice_t* register_usbdev(const char *hwname,void *devdata,void (*chipdataregfnc)(struct canchip_t *chip,void *data));
-extern void cleanup_usbdev(struct candevice_t *dev);
+extern struct candevice_t* register_hotplug_dev(const char *hwname,int (*chipdataregfnc)(struct canchip_t *chip,void *data),void *devdata);
+extern void cleanup_hotplug_dev(struct candevice_t *dev);