/*
* This file is part of the libsigrok project.
*
- * Copyright (C) 2014 Kumar Abhishek <abhishek@theembeddedkitchen.net>
+ * Copyright (C) 2014-2017 Kumar Abhishek <abhishek@theembeddedkitchen.net>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
#define BEAGLELOGIC_H_
#include <fcntl.h>
-
#include <sys/mman.h>
#include <sys/types.h>
#include <sys/errno.h>
#include <sys/ioctl.h>
-
#include <stdlib.h>
-
#include <unistd.h>
/* BeagleLogic device node name */
#define BEAGLELOGIC_DEV_NODE "/dev/beaglelogic"
-#define BEAGLELOGIC_SYSFS_ATTR(a) "/sys/devices/virtual/misc/beaglelogic/"\
- __STRING(a)
+#define BEAGLELOGIC_SYSFS_ATTR(a) "/sys/devices/virtual/misc/beaglelogic/" #a
/* Reproduced verbatim from beaglelogic.h in the kernel tree until the kernel
* module hits the mainline. Contains the ABI, so DO NOT TOUCH this section */
#define IOCTL_BL_GET_TRIGGER_FLAGS _IOR('k', 0x23, uint32_t)
#define IOCTL_BL_SET_TRIGGER_FLAGS _IOW('k', 0x23, uint32_t)
+#define IOCTL_BL_GET_CUR_INDEX _IOR('k', 0x24, uint32_t)
#define IOCTL_BL_CACHE_INVALIDATE _IO('k', 0x25)
#define IOCTL_BL_GET_BUFFER_SIZE _IOR('k', 0x26, uint32_t)
#define IOCTL_BL_SET_BUFFER_SIZE _IOW('k', 0x26, uint32_t)
#define IOCTL_BL_GET_BUFUNIT_SIZE _IOR('k', 0x27, uint32_t)
+#define IOCTL_BL_SET_BUFUNIT_SIZE _IOW('k', 0x27, uint32_t)
#define IOCTL_BL_FILL_TEST_PATTERN _IO('k', 0x28)
* SR_OK or SR_ERR
*/
-SR_PRIV int beaglelogic_open_nonblock(struct dev_context *devc);
-SR_PRIV int beaglelogic_close(struct dev_context *devc);
-
-SR_PRIV int beaglelogic_get_buffersize(struct dev_context *devc);
-SR_PRIV int beaglelogic_set_buffersize(struct dev_context *devc);
-
-SR_PRIV int beaglelogic_get_samplerate(struct dev_context *devc);
-SR_PRIV int beaglelogic_set_samplerate(struct dev_context *devc);
-
-SR_PRIV int beaglelogic_get_sampleunit(struct dev_context *devc);
-SR_PRIV int beaglelogic_set_sampleunit(struct dev_context *devc);
-
-SR_PRIV int beaglelogic_get_triggerflags(struct dev_context *devc);
-SR_PRIV int beaglelogic_set_triggerflags(struct dev_context *devc);
-
-/* Start and stop the capture operation */
-SR_PRIV int beaglelogic_start(struct dev_context *devc);
-SR_PRIV int beaglelogic_stop(struct dev_context *devc);
-
-/* Get the last error size */
-SR_PRIV int beaglelogic_getlasterror(struct dev_context *devc);
-
-/* Gets the unit size of the capture buffer (usually 4 or 8 MB) */
-SR_PRIV int beaglelogic_get_bufunitsize(struct dev_context *devc);
+struct beaglelogic_ops {
+ int (*open)(struct dev_context *devc);
+ int (*close)(struct dev_context *devc);
-SR_PRIV int beaglelogic_mmap(struct dev_context *devc);
-SR_PRIV int beaglelogic_munmap(struct dev_context *devc);
+ int (*get_buffersize)(struct dev_context *devc);
+ int (*set_buffersize)(struct dev_context *devc);
-/* Sources */
-SR_PRIV inline int beaglelogic_open_nonblock(struct dev_context *devc) {
- devc->fd = open(BEAGLELOGIC_DEV_NODE, O_RDONLY | O_NONBLOCK);
- return (devc->fd == -1 ? SR_ERR : SR_OK);
-}
+ int (*get_samplerate)(struct dev_context *devc);
+ int (*set_samplerate)(struct dev_context *devc);
-SR_PRIV inline int beaglelogic_close(struct dev_context *devc) {
- return close(devc->fd);
-}
+ int (*get_sampleunit)(struct dev_context *devc);
+ int (*set_sampleunit)(struct dev_context *devc);
-SR_PRIV inline int beaglelogic_get_buffersize(struct dev_context *devc) {
- return ioctl(devc->fd, IOCTL_BL_GET_BUFFER_SIZE, &devc->buffersize);
-}
+ int (*get_triggerflags)(struct dev_context *devc);
+ int (*set_triggerflags)(struct dev_context *devc);
-SR_PRIV inline int beaglelogic_set_buffersize(struct dev_context *devc) {
- return ioctl(devc->fd, IOCTL_BL_SET_BUFFER_SIZE, devc->buffersize);
-}
+ /* Start and stop the capture operation */
+ int (*start)(struct dev_context *devc);
+ int (*stop)(struct dev_context *devc);
-/* This is treated differently as it gets a uint64_t while a uint32_t is read */
-SR_PRIV inline int beaglelogic_get_samplerate(struct dev_context *devc) {
- uint32_t arg, err;
- err = ioctl(devc->fd, IOCTL_BL_GET_SAMPLE_RATE, &arg);
- devc->cur_samplerate = arg;
- return err;
-}
+ /* Get the last error size */
+ int (*get_lasterror)(struct dev_context *devc);
-SR_PRIV inline int beaglelogic_set_samplerate(struct dev_context *devc) {
- return ioctl(devc->fd, IOCTL_BL_SET_SAMPLE_RATE,
- (uint32_t)devc->cur_samplerate);
-}
+ /* Gets the unit size of the capture buffer (usually 4 or 8 MB) */
+ int (*get_bufunitsize)(struct dev_context *devc);
+ int (*set_bufunitsize)(struct dev_context *devc);
-SR_PRIV inline int beaglelogic_get_sampleunit(struct dev_context *devc) {
- return ioctl(devc->fd, IOCTL_BL_GET_SAMPLE_UNIT, &devc->sampleunit);
-}
-
-SR_PRIV inline int beaglelogic_set_sampleunit(struct dev_context *devc) {
- return ioctl(devc->fd, IOCTL_BL_SET_SAMPLE_UNIT, devc->sampleunit);
-}
-
-SR_PRIV inline int beaglelogic_get_triggerflags(struct dev_context *devc) {
- return ioctl(devc->fd, IOCTL_BL_GET_TRIGGER_FLAGS, &devc->triggerflags);
-}
-
-SR_PRIV inline int beaglelogic_set_triggerflags(struct dev_context *devc) {
- return ioctl(devc->fd, IOCTL_BL_SET_TRIGGER_FLAGS, devc->triggerflags);
-}
-
-SR_PRIV int beaglelogic_getlasterror(struct dev_context *devc) {
- int fd;
- char buf[16];
- int ret;
-
- if ((fd = open(BEAGLELOGIC_SYSFS_ATTR(lasterror), O_RDONLY)) == -1)
- return SR_ERR;
-
- if ((ret = read(fd, buf, 16)) < 0)
- return SR_ERR;
-
- close(fd);
- devc->last_error = strtoul(buf, NULL, 10);
-
- return SR_OK;
-}
-
-SR_PRIV inline int beaglelogic_start(struct dev_context *devc) {
- return ioctl(devc->fd, IOCTL_BL_START);
-}
+ int (*mmap)(struct dev_context *devc);
+ int (*munmap)(struct dev_context *devc);
+};
-SR_PRIV inline int beaglelogic_stop(struct dev_context *devc) {
- return ioctl(devc->fd, IOCTL_BL_STOP);
-}
+SR_PRIV extern const struct beaglelogic_ops beaglelogic_native_ops;
+SR_PRIV extern const struct beaglelogic_ops beaglelogic_tcp_ops;
-SR_PRIV int beaglelogic_get_bufunitsize(struct dev_context *devc) {
- return ioctl(devc->fd, IOCTL_BL_GET_BUFUNIT_SIZE, &devc->bufunitsize);
-}
-
-SR_PRIV int beaglelogic_mmap(struct dev_context *devc) {
- if (!devc->buffersize)
- beaglelogic_get_buffersize(devc);
- devc->sample_buf = mmap(NULL, devc->buffersize,
- PROT_READ, MAP_SHARED, devc->fd, 0);
- return (devc->sample_buf == MAP_FAILED ? -1 : SR_OK);
-}
-
-SR_PRIV int beaglelogic_munmap(struct dev_context *devc) {
- return munmap(devc->sample_buf, devc->buffersize);
-}
+SR_PRIV int beaglelogic_tcp_detect(struct dev_context *devc);
+SR_PRIV int beaglelogic_tcp_drain(struct dev_context *devc);
#endif