#define _GPIB_TYPES_H
#ifdef __KERNEL__
-/* gpib_interface defines the interface
- * between the board-specific details dealt with in the drivers
- * and generic interface provided by gpib-common.
- * This really should be in a different header file.
- */
#include "gpib_user.h"
#include <linux/atomic.h>
#include <linux/device.h>
unsigned int ibirq;
/* dma channel to use for non-pnp cards (set by core, driver should make local copy) */
unsigned int ibdma;
- /* pci bus of card, useful for distinguishing multiple identical pci cards
+ /*
+ * pci bus of card, useful for distinguishing multiple identical pci cards
* (negative means don't care)
*/
int pci_bus;
- /* pci slot of card, useful for distinguishing multiple identical pci cards
+ /*
+ * pci slot of card, useful for distinguishing multiple identical pci cards
* (negative means don't care)
*/
int pci_slot;
char *serial_number;
};
+/*
+ * struct gpib_interface defines the interface
+ * between the board-specific details dealt with in the drivers
+ * and generic interface provided by gpib-common.
+ * This really should be in a different header file.
+ */
struct gpib_interface {
/* name of board */
char *name;
int (*attach)(struct gpib_board *board, const struct gpib_board_config *config);
/* detach() shuts down board and frees resources */
void (*detach)(struct gpib_board *board);
- /* read() should read at most 'length' bytes from the bus into
+ /*
+ * read() should read at most 'length' bytes from the bus into
* 'buffer'. It should return when it fills the buffer or
* encounters an END (EOI and or EOS if appropriate). It should set 'end'
* to be nonzero if the read was terminated by an END, otherwise 'end'
*/
int (*read)(struct gpib_board *board, u8 *buffer, size_t length, int *end,
size_t *bytes_read);
- /* write() should write 'length' bytes from buffer to the bus.
+ /*
+ * write() should write 'length' bytes from buffer to the bus.
* If the boolean value send_eoi is nonzero, then EOI should
* be sent along with the last byte. Returns number of bytes
* written or negative value on error.
*/
int (*write)(struct gpib_board *board, u8 *buffer, size_t length, int send_eoi,
size_t *bytes_written);
- /* command() writes the command bytes in 'buffer' to the bus
+ /*
+ * command() writes the command bytes in 'buffer' to the bus
* Returns zero on success or negative value on error.
*/
int (*command)(struct gpib_board *board, u8 *buffer, size_t length,
size_t *bytes_written);
- /* Take control (assert ATN). If 'asyncronous' is nonzero, take
+ /*
+ * Take control (assert ATN). If 'asyncronous' is nonzero, take
* control asyncronously (assert ATN immediately without waiting
* for other processes to complete first). Should not return
* until board becomes controller in charge. Returns zero no success,
* nonzero on error.
*/
int (*take_control)(struct gpib_board *board, int asyncronous);
- /* De-assert ATN. Returns zero on success, nonzer on error.
+ /*
+ * De-assert ATN. Returns zero on success, nonzer on error.
*/
int (*go_to_standby)(struct gpib_board *board);
/* request/release control of the IFC and REN lines (system controller) */
void (*request_system_control)(struct gpib_board *board, int request_control);
- /* Asserts or de-asserts 'interface clear' (IFC) depending on
+ /*
+ * Asserts or de-asserts 'interface clear' (IFC) depending on
* boolean value of 'assert'
*/
void (*interface_clear)(struct gpib_board *board, int assert);
- /* Sends remote enable command if 'enable' is nonzero, disables remote mode
+ /*
+ * Sends remote enable command if 'enable' is nonzero, disables remote mode
* if 'enable' is zero
*/
void (*remote_enable)(struct gpib_board *board, int enable);
- /* enable END for reads, when byte 'eos' is received. If
+ /*
+ * enable END for reads, when byte 'eos' is received. If
* 'compare_8_bits' is nonzero, then all 8 bits are compared
* with the eos bytes. Otherwise only the 7 least significant
* bits are compared.
void (*parallel_poll_response)(struct gpib_board *board, int ist);
/* select local parallel poll configuration mode PP2 versus remote PP1 */
void (*local_parallel_poll_mode)(struct gpib_board *board, int local);
- /* Returns current status of the bus lines. Should be set to
+ /*
+ * Returns current status of the bus lines. Should be set to
* NULL if your board does not have the ability to query the
* state of the bus lines.
*/
int (*line_status)(const struct gpib_board *board);
- /* updates and returns the board's current status.
+ /*
+ * updates and returns the board's current status.
* The meaning of the bits are specified in gpib_user.h
* in the IBSTA section. The driver does not need to
* worry about setting the CMPL, END, TIMO, or ERR bits.
*/
unsigned int (*update_status)(struct gpib_board *board, unsigned int clear_mask);
- /* Sets primary address 0-30 for gpib interface card.
+ /*
+ * Sets primary address 0-30 for gpib interface card.
*/
int (*primary_address)(struct gpib_board *board, unsigned int address);
- /* Sets and enables, or disables secondary address 0-30
+ /*
+ * Sets and enables, or disables secondary address 0-30
* for gpib interface card.
*/
int (*secondary_address)(struct gpib_board *board, unsigned int address,
int enable);
- /* Sets the byte the board should send in response to a serial poll.
+ /*
+ * Sets the byte the board should send in response to a serial poll.
* This function should also start or stop requests for service via
* IEEE 488.2 reqt/reqf, based on MSS (bit 6 of the status_byte).
* If the more flexible serial_poll_response2 is implemented by the
* STB, reqt, and reqf".
*/
void (*serial_poll_response)(struct gpib_board *board, u8 status_byte);
- /* Sets the byte the board should send in response to a serial poll.
+ /*
+ * Sets the byte the board should send in response to a serial poll.
* This function should also request service via IEEE 488.2 reqt/reqf
* based on MSS (bit 6 of the status_byte) and new_reason_for_service.
* reqt should be set true if new_reason_for_service is true,
*/
void (*serial_poll_response2)(struct gpib_board *board, u8 status_byte,
int new_reason_for_service);
- /* returns the byte the board will send in response to a serial poll.
+ /*
+ * returns the byte the board will send in response to a serial poll.
*/
u8 (*serial_poll_status)(struct gpib_board *board);
/* adjust T1 delay */
struct module *module;
};
-/* One struct gpib_board is allocated for each physical board in the computer.
+/*
+ * One struct gpib_board is allocated for each physical board in the computer.
* It provides storage for variables local to each board, and interface
* functions for performing operations on the board
*/
struct gpib_board {
/* functions used by this board */
struct gpib_interface *interface;
- /* Pointer to module whose use count we should increment when
+ /*
+ * Pointer to module whose use count we should increment when
* interface is in use
*/
struct module *provider_module;
u8 *buffer;
/* length of buffer */
unsigned int buffer_length;
- /* Used to hold the board's current status (see update_status() above)
+ /*
+ * Used to hold the board's current status (see update_status() above)
*/
unsigned long status;
- /* Driver should only sleep on this wait queue. It is special in that the
+ /*
+ * Driver should only sleep on this wait queue. It is special in that the
* core will wake this queue and set the TIMO bit in 'status' when the
* watchdog timer times out.
*/
wait_queue_head_t wait;
- /* Lock that only allows one process to access this board at a time.
+ /*
+ * Lock that only allows one process to access this board at a time.
* Has to be first in any locking order, since it can be locked over
* multiple ioctls.
*/
struct mutex user_mutex;
- /* Mutex which compensates for removal of "big kernel lock" from kernel.
+ /*
+ * Mutex which compensates for removal of "big kernel lock" from kernel.
* Should not be held for extended waits.
*/
struct mutex big_gpib_mutex;
struct device *dev;
/* gpib_common device gpibN */
struct device *gpib_dev;
- /* 'private_data' can be used as seen fit by the driver to
+ /*
+ * 'private_data' can be used as seen fit by the driver to
* store additional variables for this board
*/
void *private_data;
unsigned master : 1;
/* individual status bit */
unsigned ist : 1;
- /* one means local parallel poll mode ieee 488.1 PP2 (or no parallel poll PP0),
+ /*
+ * one means local parallel poll mode ieee 488.1 PP2 (or no parallel poll PP0),
* zero means remote parallel poll configuration mode ieee 488.1 PP1
*/
unsigned local_ppoll_mode : 1;
short event_type;
};
-/* Each board has a list of gpib_status_queue to keep track of all open devices
+/*
+ * Each board has a list of gpib_status_queue to keep track of all open devices
* on the bus, so we know what address to poll when we get a service request
*/
struct gpib_status_queue {
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