mirror of https://github.com/schoebel/mars
140 lines
3.5 KiB
C
140 lines
3.5 KiB
C
// (c) 2010 Thomas Schoebel-Theuer / 1&1 Internet AG
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// Dummy brick (just for demonstration)
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//#define BRICK_DEBUGGING
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//#define MARS_DEBUGGING
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/string.h>
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#include "mars.h"
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///////////////////////// own type definitions ////////////////////////
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#include "mars_dummy.h"
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///////////////////////// own helper functions ////////////////////////
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////////////////// own brick / input / output operations //////////////////
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static int dummy_get_info(struct dummy_output *output, struct mars_info *info)
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{
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struct dummy_input *input = output->brick->inputs[0];
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return GENERIC_INPUT_CALL(input, mars_get_info, info);
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}
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static int dummy_buf_get(struct dummy_output *output, struct mars_buf_object *mbuf)
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{
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struct dummy_input *input = output->brick->inputs[0];
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return GENERIC_INPUT_CALL(input, mars_buf_get, mbuf);
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}
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static void dummy_buf_put(struct dummy_output *output, struct mars_buf_object *mbuf)
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{
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struct dummy_input *input = output->brick->inputs[0];
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GENERIC_INPUT_CALL(input, mars_buf_put, mbuf);
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}
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static void dummy_buf_io(struct dummy_output *output, struct mars_buf_object *mbuf, int rw)
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{
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struct dummy_input *input = output->brick->inputs[0];
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GENERIC_INPUT_CALL(input, mars_buf_io, mbuf, rw);
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}
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//////////////// object / aspect constructors / destructors ///////////////
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static int dummy_mars_buf_aspect_init_fn(struct generic_aspect *_ini, void *_init_data)
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{
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struct dummy_mars_buf_aspect *ini = (void*)_ini;
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ini->my_own = 0;
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return 0;
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}
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MARS_MAKE_STATICS(dummy);
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////////////////////// brick constructors / destructors ////////////////////
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static int dummy_brick_construct(struct dummy_brick *brick)
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{
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brick->my_own = 0;
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return 0;
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}
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static int dummy_output_construct(struct dummy_output *output)
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{
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output->my_own = 0;
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return 0;
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}
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///////////////////////// static structs ////////////////////////
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static struct dummy_brick_ops dummy_brick_ops = {
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};
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static struct dummy_output_ops dummy_output_ops = {
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.make_object_layout = dummy_make_object_layout,
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.mars_get_info = dummy_get_info,
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.mars_buf_get = dummy_buf_get,
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.mars_buf_put = dummy_buf_put,
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.mars_buf_io = dummy_buf_io,
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};
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static const struct dummy_input_type dummy_input_type = {
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.type_name = "dummy_input",
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.input_size = sizeof(struct dummy_input),
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};
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static const struct dummy_input_type *dummy_input_types[] = {
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&dummy_input_type,
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};
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static const struct dummy_output_type dummy_output_type = {
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.type_name = "dummy_output",
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.output_size = sizeof(struct dummy_output),
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.master_ops = &dummy_output_ops,
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.output_construct = &dummy_output_construct,
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.aspect_types = dummy_aspect_types,
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.layout_code = {
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[BRICK_OBJ_MARS_BUF] = LAYOUT_ALL,
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}
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};
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static const struct dummy_output_type *dummy_output_types[] = {
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&dummy_output_type,
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};
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const struct dummy_brick_type dummy_brick_type = {
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.type_name = "dummy_brick",
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.brick_size = sizeof(struct dummy_brick),
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.max_inputs = 1,
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.max_outputs = 1,
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.master_ops = &dummy_brick_ops,
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.default_input_types = dummy_input_types,
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.default_output_types = dummy_output_types,
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.brick_construct = &dummy_brick_construct,
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};
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EXPORT_SYMBOL_GPL(dummy_brick_type);
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////////////////// module init stuff /////////////////////////
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static int __init init_dummy(void)
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{
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printk(MARS_INFO "init_dummy()\n");
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return dummy_register_brick_type();
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}
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static void __exit exit_dummy(void)
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{
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printk(MARS_INFO "exit_dummy()\n");
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dummy_unregister_brick_type();
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}
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MODULE_DESCRIPTION("MARS dummy brick");
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MODULE_AUTHOR("Thomas Schoebel-Theuer <tst@1und1.de>");
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MODULE_LICENSE("GPL");
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module_init(init_dummy);
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module_exit(exit_dummy);
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