68 lines
1.7 KiB
C
68 lines
1.7 KiB
C
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#include <utsm/dkm.h>
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#include <utsm/log.h>
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static int dkm_validate_desc(const dkm_driver_desc *desc) {
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if (!desc) {
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return -1;
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}
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if (desc->magic != DKM_DRIVER_MAGIC) {
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return -2;
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}
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if (desc->abi_version != DKM_ABI_VERSION) {
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return -3;
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}
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if (desc->desc_size < sizeof(dkm_driver_desc)) {
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return -4;
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}
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if (!desc->name || !desc->version) {
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return -5;
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}
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return 0;
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}
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void dkm_init(void) {
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log_info("[DKM] init begin");
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int status = dkm_load_builtin(&dkm_builtin_console_early);
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if (status == 0) {
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log_info("[DKM] init ok");
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} else {
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log_error("[DKM] init failed");
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}
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}
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int dkm_load_builtin(const dkm_builtin_driver *driver) {
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if (!driver || !driver->desc || !driver->init) {
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log_error("[DKM] invalid builtin driver");
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return -1;
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}
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int status = dkm_validate_desc(driver->desc);
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if (status != 0) {
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log_error("[DKM] driver_desc rejected");
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return status;
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}
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dkm_driver_handle handle;
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handle.desc = driver->desc;
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handle.state = DKM_STATE_ABI_CHECKED;
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handle.init_status = 0;
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handle.load_stage = driver->desc->stage;
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handle.flags = driver->desc->flags;
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log_info("[DKM] builtin driver init begin");
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log_info(driver->desc->name);
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handle.state = DKM_STATE_INITING;
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status = driver->init(dkm_get_kernel_api(), &handle);
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handle.init_status = status;
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if (status != 0) {
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handle.state = DKM_STATE_FAILED;
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log_error("[DKM] builtin driver init failed");
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return status;
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}
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handle.state = DKM_STATE_ACTIVE;
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log_info("[DKM] builtin driver active");
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return 0;
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}
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