HelenOS sources
This source file includes following definitions.
- gicv2_get_res
- gicv2_dev_add
- gicv2_dev_remove
- gicv2_dev_gone
- gicv2_fun_online
- gicv2_fun_offline
- main
#include <ddf/driver.h>
#include <ddf/log.h>
#include <device/hw_res_parsed.h>
#include <errno.h>
#include <stdio.h>
#include "gicv2.h"
#define NAME "gicv2"
static errno_t gicv2_dev_add(ddf_dev_t *dev);
static errno_t gicv2_dev_remove(ddf_dev_t *dev);
static errno_t gicv2_dev_gone(ddf_dev_t *dev);
static errno_t gicv2_fun_online(ddf_fun_t *fun);
static errno_t gicv2_fun_offline(ddf_fun_t *fun);
static driver_ops_t driver_ops = {
.dev_add = gicv2_dev_add,
.dev_remove = gicv2_dev_remove,
.dev_gone = gicv2_dev_gone,
.fun_online = gicv2_fun_online,
.fun_offline = gicv2_fun_offline
};
static driver_t gicv2_driver = {
.name = NAME,
.driver_ops = &driver_ops
};
static errno_t gicv2_get_res(ddf_dev_t *dev, gicv2_res_t *res)
{
async_sess_t *parent_sess;
hw_res_list_parsed_t hw_res;
errno_t rc;
parent_sess = ddf_dev_parent_sess_get(dev);
if (parent_sess == NULL)
return ENOMEM;
hw_res_list_parsed_init(&hw_res);
rc = hw_res_get_list_parsed(parent_sess, &hw_res, 0);
if (rc != EOK)
return rc;
if (hw_res.mem_ranges.count != 2) {
rc = EINVAL;
goto error;
}
res->distr_base = RNGABS(hw_res.mem_ranges.ranges[0]);
res->cpui_base = RNGABS(hw_res.mem_ranges.ranges[1]);
return EOK;
error:
hw_res_list_parsed_clean(&hw_res);
return rc;
}
static errno_t gicv2_dev_add(ddf_dev_t *dev)
{
gicv2_t *gicv2;
gicv2_res_t gicv2_res;
errno_t rc;
ddf_msg(LVL_DEBUG, "gicv2_dev_add(%p)", dev);
gicv2 = ddf_dev_data_alloc(dev, sizeof(gicv2_t));
if (gicv2 == NULL) {
ddf_msg(LVL_ERROR, "Failed allocating soft state.");
return ENOMEM;
}
gicv2->dev = dev;
rc = gicv2_get_res(dev, &gicv2_res);
if (rc != EOK) {
ddf_msg(LVL_ERROR, "Failed getting hardware resource list.\n");
return EIO;
}
return gicv2_add(gicv2, &gicv2_res);
}
static errno_t gicv2_dev_remove(ddf_dev_t *dev)
{
gicv2_t *gicv2 = (gicv2_t *)ddf_dev_data_get(dev);
ddf_msg(LVL_DEBUG, "gicv2_dev_remove(%p)", dev);
return gicv2_remove(gicv2);
}
static errno_t gicv2_dev_gone(ddf_dev_t *dev)
{
gicv2_t *gicv2 = (gicv2_t *)ddf_dev_data_get(dev);
ddf_msg(LVL_DEBUG, "gicv2_dev_gone(%p)", dev);
return gicv2_gone(gicv2);
}
static errno_t gicv2_fun_online(ddf_fun_t *fun)
{
ddf_msg(LVL_DEBUG, "gicv2_fun_online()");
return ddf_fun_online(fun);
}
static errno_t gicv2_fun_offline(ddf_fun_t *fun)
{
ddf_msg(LVL_DEBUG, "gicv2_fun_offline()");
return ddf_fun_offline(fun);
}
int main(int argc, char *argv[])
{
printf(NAME ": GICv2 interrupt controller driver\n");
ddf_log_init(NAME);
return ddf_driver_main(&gicv2_driver);
}
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