diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/ni_labpc.h')
| -rw-r--r-- | drivers/staging/comedi/drivers/ni_labpc.h | 50 |
1 files changed, 25 insertions, 25 deletions
diff --git a/drivers/staging/comedi/drivers/ni_labpc.h b/drivers/staging/comedi/drivers/ni_labpc.h index b44b0d3d02f1..c5d2d212612c 100644 --- a/drivers/staging/comedi/drivers/ni_labpc.h +++ b/drivers/staging/comedi/drivers/ni_labpc.h @@ -24,59 +24,59 @@ #ifndef _NI_LABPC_H #define _NI_LABPC_H -#define EEPROM_SIZE 256 // 256 byte eeprom -#define NUM_AO_CHAN 2 // boards have two analog output channels +#define EEPROM_SIZE 256 /* 256 byte eeprom */ +#define NUM_AO_CHAN 2 /* boards have two analog output channels */ enum labpc_bustype { isa_bustype, pci_bustype, pcmcia_bustype }; enum labpc_register_layout { labpc_plus_layout, labpc_1200_layout }; enum transfer_type { fifo_not_empty_transfer, fifo_half_full_transfer, isa_dma_transfer }; -typedef struct labpc_board_struct { +struct labpc_board_struct { const char *name; - int device_id; // device id for pci and pcmcia boards - int ai_speed; // maximum input speed in nanoseconds - enum labpc_bustype bustype; // ISA/PCI/etc. - enum labpc_register_layout register_layout; // 1200 has extra registers compared to pc+ - int has_ao; // has analog output true/false + int device_id; /* device id for pci and pcmcia boards */ + int ai_speed; /* maximum input speed in nanoseconds */ + enum labpc_bustype bustype; /* ISA/PCI/etc. */ + enum labpc_register_layout register_layout; /* 1200 has extra registers compared to pc+ */ + int has_ao; /* has analog output true/false */ const struct comedi_lrange *ai_range_table; const int *ai_range_code; const int *ai_range_is_unipolar; - unsigned ai_scan_up:1; // board can auto scan up in ai channels, not just down + unsigned ai_scan_up:1; /* board can auto scan up in ai channels, not just down */ unsigned memory_mapped_io:1; /* uses memory mapped io instead of ioports */ -} labpc_board; +}; -typedef struct { - struct mite_struct *mite; // for mite chip on pci-1200 +struct labpc_private { + struct mite_struct *mite; /* for mite chip on pci-1200 */ volatile unsigned long long count; /* number of data points left to be taken */ - unsigned int ao_value[NUM_AO_CHAN]; // software copy of analog output values - // software copys of bits written to command registers + unsigned int ao_value[NUM_AO_CHAN]; /* software copy of analog output values */ + /* software copys of bits written to command registers */ volatile unsigned int command1_bits; volatile unsigned int command2_bits; volatile unsigned int command3_bits; volatile unsigned int command4_bits; volatile unsigned int command5_bits; volatile unsigned int command6_bits; - // store last read of board status registers + /* store last read of board status registers */ volatile unsigned int status1_bits; volatile unsigned int status2_bits; unsigned int divisor_a0; /* value to load into board's counter a0 (conversion pacing) for timed conversions */ unsigned int divisor_b0; /* value to load into board's counter b0 (master) for timed conversions */ unsigned int divisor_b1; /* value to load into board's counter b1 (scan pacing) for timed conversions */ - unsigned int dma_chan; // dma channel to use - u16 *dma_buffer; // buffer ai will dma into - unsigned int dma_transfer_size; // transfer size in bytes for current transfer - enum transfer_type current_transfer; // we are using dma/fifo-half-full/etc. - unsigned int eeprom_data[EEPROM_SIZE]; // stores contents of board's eeprom - unsigned int caldac[16]; // stores settings of calibration dacs - // function pointers so we can use inb/outb or readb/writeb as appropriate + unsigned int dma_chan; /* dma channel to use */ + u16 *dma_buffer; /* buffer ai will dma into */ + unsigned int dma_transfer_size; /* transfer size in bytes for current transfer */ + enum transfer_type current_transfer; /* we are using dma/fifo-half-full/etc. */ + unsigned int eeprom_data[EEPROM_SIZE]; /* stores contents of board's eeprom */ + unsigned int caldac[16]; /* stores settings of calibration dacs */ + /* function pointers so we can use inb/outb or readb/writeb as appropriate */ unsigned int (*read_byte) (unsigned long address); void (*write_byte) (unsigned int byte, unsigned long address); -} labpc_private; +}; -int labpc_common_attach(struct comedi_device * dev, unsigned long iobase, +int labpc_common_attach(struct comedi_device *dev, unsigned long iobase, unsigned int irq, unsigned int dma); -int labpc_common_detach(struct comedi_device * dev); +int labpc_common_detach(struct comedi_device *dev); extern const int labpc_1200_is_unipolar[]; extern const int labpc_1200_ai_gain_bits[]; |