1 /* SPDX-License-Identifier: GPL-2.0 */ 2 3 #include "gpibP.h" 4 5 #include <linux/kernel.h> 6 #include <linux/sched.h> 7 #include <linux/errno.h> 8 #include <linux/major.h> 9 #include <linux/module.h> 10 #include <linux/slab.h> 11 #include <linux/mm.h> 12 #include <linux/timer.h> 13 14 #include <linux/io.h> 15 #include <linux/uaccess.h> 16 #include <asm/irq.h> 17 #include <asm/dma.h> 18 19 #define MAX_GPIB_PRIMARY_ADDRESS 30 20 #define MAX_GPIB_SECONDARY_ADDRESS 31 21 22 int gpib_allocate_board(struct gpib_board *board); 23 void gpib_deallocate_board(struct gpib_board *board); 24 25 unsigned int num_status_bytes(const struct gpib_status_queue *dev); 26 int push_status_byte(struct gpib_board *board, struct gpib_status_queue *device, 27 u8 poll_byte); 28 int pop_status_byte(struct gpib_board *board, struct gpib_status_queue *device, 29 u8 *poll_byte); 30 struct gpib_status_queue *get_gpib_status_queue(struct gpib_board *board, 31 unsigned int pad, int sad); 32 int get_serial_poll_byte(struct gpib_board *board, unsigned int pad, int sad, 33 unsigned int usec_timeout, u8 *poll_byte); 34 int autopoll_all_devices(struct gpib_board *board); 35