HelenOS sources
This source file includes following definitions.
- pc_get_resources
- pc_enable_interrupt
- pc_get_pio_window
- pc_add_sysbus
- pc_add_functions
- pc_dev_add
- pc_init
- main
#include <assert.h>
#include <stdio.h>
#include <errno.h>
#include <stdbool.h>
#include <fibril_synch.h>
#include <stdlib.h>
#include <str.h>
#include <ctype.h>
#include <macros.h>
#include <ddf/driver.h>
#include <ddf/log.h>
#include <ipc/dev_iface.h>
#include <ops/hw_res.h>
#include <ops/pio_window.h>
#define NAME "pc"
typedef struct pc_fun {
hw_resource_list_t hw_resources;
pio_window_t pio_window;
} pc_fun_t;
static errno_t pc_dev_add(ddf_dev_t *dev);
static void pc_init(void);
static driver_ops_t pc_ops = {
.dev_add = &pc_dev_add
};
static driver_t pc_driver = {
.name = NAME,
.driver_ops = &pc_ops
};
static hw_resource_t pci_conf_regs[] = {
{
.type = IO_RANGE,
.res.io_range = {
.address = 0xCF8,
.size = 4,
.relative = false,
.endianness = LITTLE_ENDIAN
}
},
{
.type = IO_RANGE,
.res.io_range = {
.address = 0xCFC,
.size = 4,
.relative = false,
.endianness = LITTLE_ENDIAN
}
}
};
static pc_fun_t sys_data = {
.hw_resources = {
sizeof(pci_conf_regs) / sizeof(pci_conf_regs[0]),
pci_conf_regs
},
.pio_window = {
.mem = {
.base = UINT32_C(0),
.size = UINT32_C(0xffffffff)
},
.io = {
.base = UINT32_C(0),
.size = UINT32_C(0x10000)
}
}
};
static pc_fun_t *pc_fun(ddf_fun_t *fnode)
{
return ddf_fun_data_get(fnode);
}
static hw_resource_list_t *pc_get_resources(ddf_fun_t *fnode)
{
pc_fun_t *fun = pc_fun(fnode);
assert(fun != NULL);
return &fun->hw_resources;
}
static errno_t pc_enable_interrupt(ddf_fun_t *fun, int irq)
{
return false;
}
static pio_window_t *pc_get_pio_window(ddf_fun_t *fnode)
{
pc_fun_t *fun = pc_fun(fnode);
assert(fun != NULL);
return &fun->pio_window;
}
static hw_res_ops_t fun_hw_res_ops = {
.get_resource_list = &pc_get_resources,
.enable_interrupt = &pc_enable_interrupt,
};
static pio_window_ops_t fun_pio_window_ops = {
.get_pio_window = &pc_get_pio_window
};
static ddf_dev_ops_t pc_fun_ops;
static errno_t pc_add_sysbus(ddf_dev_t *dev)
{
ddf_fun_t *fnode = NULL;
errno_t rc;
ddf_msg(LVL_DEBUG, "Adding system bus.");
fnode = ddf_fun_create(dev, fun_inner, "sys");
if (fnode == NULL) {
rc = ENOMEM;
goto error;
}
pc_fun_t *fun = ddf_fun_data_alloc(fnode, sizeof(pc_fun_t));
*fun = sys_data;
rc = ddf_fun_add_match_id(fnode, "intel_pci", 100);
if (rc != EOK)
goto error;
rc = ddf_fun_add_match_id(fnode, "isa", 10);
if (rc != EOK)
goto error;
ddf_fun_set_ops(fnode, &pc_fun_ops);
rc = ddf_fun_bind(fnode);
if (rc != EOK) {
ddf_msg(LVL_ERROR, "Failed binding system bus function.");
goto error;
}
return EOK;
error:
if (fnode != NULL)
ddf_fun_destroy(fnode);
ddf_msg(LVL_ERROR, "Failed adding system bus.");
return rc;
}
static errno_t pc_add_functions(ddf_dev_t *dev)
{
errno_t rc;
rc = pc_add_sysbus(dev);
if (rc != EOK)
return rc;
return EOK;
}
static errno_t pc_dev_add(ddf_dev_t *dev)
{
errno_t rc;
ddf_msg(LVL_DEBUG, "pc_dev_add, device handle = %d",
(int)ddf_dev_get_handle(dev));
rc = pc_add_functions(dev);
if (rc != EOK) {
ddf_msg(LVL_ERROR, "Failed to add functions for PC platform.");
return rc;
}
return EOK;
}
static void pc_init(void)
{
ddf_log_init(NAME);
pc_fun_ops.interfaces[HW_RES_DEV_IFACE] = &fun_hw_res_ops;
pc_fun_ops.interfaces[PIO_WINDOW_DEV_IFACE] = &fun_pio_window_ops;
}
int main(int argc, char *argv[])
{
printf(NAME ": HelenOS PC platform driver\n");
pc_init();
return ddf_driver_main(&pc_driver);
}
HelenOS homepage, sources at GitHub