Add a VBE-ABrec bootmeth so that the VBE state can be accessed.
Signed-off-by: Simon Glass <s...@chromium.org>
---
Changes in v2:
- Add new patch with a bootmeth driver for abrec
boot/vbe_abrec.c | 99 ++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 99 insertions(+)
diff --git a/boot/vbe_abrec.c b/boot/vbe_abrec.c
index 6d0f622262d..8593082fd79 100644
--- a/boot/vbe_abrec.c
+++ b/boot/vbe_abrec.c
@@ -8,6 +8,7 @@
#define LOG_CATEGORY LOGC_BOOT
+#include <bootmeth.h>
#include <dm.h>
#include <memalign.h>
#include <mmc.h>
@@ -81,3 +82,101 @@ int abrec_read_state(struct udevice *dev, struct
abrec_state *state)
return 0;
}
+
+static int vbe_abrec_get_state_desc(struct udevice *dev, char *buf,
+ int maxsize)
+{
+ struct abrec_state state;
+ int ret;
+
+ ret = abrec_read_state(dev, &state);
+ if (ret)
+ return log_msg_ret("read", ret);
+
+ if (maxsize < 30)
+ return -ENOSPC;
+ snprintf(buf, maxsize, "Version: %s\nVernum: %x/%x", state.fw_version,
+ state.fw_vernum >> FWVER_KEY_SHIFT,
+ state.fw_vernum & FWVER_FW_MASK);
+
+ return 0;
+}
+
+static int vbe_abrec_read_bootflow(struct udevice *dev, struct bootflow *bflow)
+{
+ int ret;
+
+ if (CONFIG_IS_ENABLED(BOOTMETH_VBE_ABREC_FW)) {
+ if (vbe_phase() == VBE_PHASE_FIRMWARE) {
+ ret = abrec_read_bootflow_fw(dev, bflow);
+ if (ret)
+ return log_msg_ret("fw", ret);
+ return 0;
+ }
+ }
+
+ return -EINVAL;
+}
+
+static int vbe_abrec_read_file(struct udevice *dev, struct bootflow *bflow,
+ const char *file_path, ulong addr,
+ enum bootflow_img_t type, ulong *sizep)
+{
+ int ret;
+
+ if (vbe_phase() == VBE_PHASE_OS) {
+ ret = bootmeth_common_read_file(dev, bflow, file_path, addr,
+ type, sizep);
+ if (ret)
+ return log_msg_ret("os", ret);
+ }
+
+ /* To be implemented */
+ return -EINVAL;
+}
+
+static struct bootmeth_ops bootmeth_vbe_abrec_ops = {
+ .get_state_desc = vbe_abrec_get_state_desc,
+ .read_bootflow = vbe_abrec_read_bootflow,
+ .read_file = vbe_abrec_read_file,
+};
+
+static int bootmeth_vbe_abrec_probe(struct udevice *dev)
+{
+ struct abrec_priv *priv = dev_get_priv(dev);
+ int ret;
+
+ ret = abrec_read_priv(dev_ofnode(dev), priv);
+ if (ret)
+ return log_msg_ret("abp", ret);
+
+ return 0;
+}
+
+static int bootmeth_vbe_abrec_bind(struct udevice *dev)
+{
+ struct bootmeth_uc_plat *plat = dev_get_uclass_plat(dev);
+
+ plat->desc = "VBE A/B/recovery";
+ plat->flags = BOOTMETHF_GLOBAL;
+
+ return 0;
+}
+
+#if CONFIG_IS_ENABLED(OF_REAL)
+static const struct udevice_id generic_simple_vbe_abrec_ids[] = {
+ { .compatible = "fwupd,vbe-abrec" },
+ { }
+};
+#endif
+
+U_BOOT_DRIVER(vbe_abrec) = {
+ .name = "vbe_abrec",
+ .id = UCLASS_BOOTMETH,
+ .of_match = of_match_ptr(generic_simple_vbe_abrec_ids),
+ .ops = &bootmeth_vbe_abrec_ops,
+ .bind = bootmeth_vbe_abrec_bind,
+ .probe = bootmeth_vbe_abrec_probe,
+ .flags = DM_FLAG_PRE_RELOC,
+ .priv_auto = sizeof(struct abrec_priv),
+};
--
2.43.0
