diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/8255.h')
| -rw-r--r-- | drivers/staging/comedi/drivers/8255.h | 31 |
1 files changed, 23 insertions, 8 deletions
diff --git a/drivers/staging/comedi/drivers/8255.h b/drivers/staging/comedi/drivers/8255.h index 795d232a6c02..5985c8e0330f 100644 --- a/drivers/staging/comedi/drivers/8255.h +++ b/drivers/staging/comedi/drivers/8255.h @@ -21,13 +21,28 @@ #include "../comedidev.h" -int subdev_8255_init(struct comedi_device *dev, struct comedi_subdevice *s, - int (*io)(int, int, int, unsigned long), - unsigned long iobase); -int subdev_8255_init_irq(struct comedi_device *dev, struct comedi_subdevice *s, - int (*io)(int, int, int, unsigned long), - unsigned long iobase); -void subdev_8255_interrupt(struct comedi_device *dev, - struct comedi_subdevice *s); +#define I8255_SIZE 0x04 + +#define I8255_DATA_A_REG 0x00 +#define I8255_DATA_B_REG 0x01 +#define I8255_DATA_C_REG 0x02 +#define I8255_CTRL_REG 0x03 +#define I8255_CTRL_C_LO_IO (1 << 0) +#define I8255_CTRL_B_IO (1 << 1) +#define I8255_CTRL_B_MODE (1 << 2) +#define I8255_CTRL_C_HI_IO (1 << 3) +#define I8255_CTRL_A_IO (1 << 4) +#define I8255_CTRL_A_MODE(x) ((x) << 5) +#define I8255_CTRL_CW (1 << 7) + +int subdev_8255_init(struct comedi_device *, struct comedi_subdevice *, + int (*io)(struct comedi_device *, + int, int, int, unsigned long), + unsigned long regbase); + +int subdev_8255_mm_init(struct comedi_device *, struct comedi_subdevice *, + int (*io)(struct comedi_device *, + int, int, int, unsigned long), + unsigned long regbase); #endif |