+// SPDX-License-Identifier: GPL-2.0+
/*
* Chromium OS cros_ec driver - sandbox emulation
*
* Copyright (c) 2013 The Chromium OS Authors.
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
* the EC image in with U-Boot (Vic has demonstrated a prototype for this).
*/
-DECLARE_GLOBAL_DATA_PTR;
-
#define KEYBOARD_ROWS 8
#define KEYBOARD_COLS 13
* RR=Row CC=Column KKKK=Key Code
*
* @param ec Current emulated EC state
- * @param blob Device tree blob containing keyscan information
* @param node Keyboard node of device tree containing keyscan information
* @return 0 if ok, -1 on error
*/
-static int keyscan_read_fdt_matrix(struct ec_state *ec, const void *blob,
- int node)
+static int keyscan_read_fdt_matrix(struct ec_state *ec, ofnode node)
{
const u32 *cell;
int upto;
int len;
- cell = fdt_getprop(blob, node, "linux,keymap", &len);
+ cell = ofnode_get_property(node, "linux,keymap", &len);
ec->matrix_count = len / 4;
ec->matrix = calloc(ec->matrix_count, sizeof(*ec->matrix));
if (!ec->matrix) {
case EC_CMD_MKBP_STATE:
len = cros_ec_keyscan(ec, resp_data);
break;
+ case EC_CMD_ENTERING_MODE:
+ len = 0;
+ break;
default:
printf(" ** Unknown EC command %#02x\n", req_hdr->command);
return -1;
return len;
}
-#ifdef CONFIG_DM_CROS_EC
int cros_ec_sandbox_packet(struct udevice *udev, int out_bytes, int in_bytes)
{
- struct cros_ec_dev *dev = udev->uclass_priv;
+ struct cros_ec_dev *dev = dev_get_uclass_priv(udev);
struct ec_state *ec = dev_get_priv(dev->dev);
-#else
-int cros_ec_sandbox_packet(struct cros_ec_dev *dev, int out_bytes,
- int in_bytes)
-{
- struct ec_state *ec = &s_state;
-#endif
struct ec_host_request *req_hdr = (struct ec_host_request *)dev->dout;
const void *req_data = req_hdr + 1;
struct ec_host_response *resp_hdr = (struct ec_host_response *)dev->din;
return in_bytes;
}
-int cros_ec_sandbox_decode_fdt(struct cros_ec_dev *dev, const void *blob)
-{
- return 0;
-}
-
void cros_ec_check_keyboard(struct cros_ec_dev *dev)
{
-#ifdef CONFIG_DM_CROS_EC
struct ec_state *ec = dev_get_priv(dev->dev);
-#else
- struct ec_state *ec = &s_state;
-#endif
ulong start;
printf("Press keys for EC to detect on reset (ESC=recovery)...");
}
}
-#ifdef CONFIG_DM_CROS_EC
int cros_ec_probe(struct udevice *dev)
{
struct ec_state *ec = dev->priv;
struct cros_ec_dev *cdev = dev->uclass_priv;
- const void *blob = gd->fdt_blob;
- int node;
+ struct udevice *keyb_dev;
+ ofnode node;
int err;
memcpy(ec, &s_state, sizeof(*ec));
- err = cros_ec_decode_ec_flash(blob, dev->of_offset, &ec->ec_config);
- if (err)
+ err = cros_ec_decode_ec_flash(dev, &ec->ec_config);
+ if (err) {
+ debug("%s: Cannot device EC flash\n", __func__);
return err;
+ }
- node = fdtdec_next_compatible(blob, 0, COMPAT_GOOGLE_CROS_EC_KEYB);
- if (node < 0) {
+ node = ofnode_null();
+ for (device_find_first_child(dev, &keyb_dev);
+ keyb_dev;
+ device_find_next_child(&keyb_dev)) {
+ if (device_get_uclass_id(keyb_dev) == UCLASS_KEYBOARD) {
+ node = dev_ofnode(keyb_dev);
+ break;
+ }
+ }
+ if (!ofnode_valid(node)) {
debug("%s: No cros_ec keyboard found\n", __func__);
- } else if (keyscan_read_fdt_matrix(ec, blob, node)) {
+ } else if (keyscan_read_fdt_matrix(ec, node)) {
debug("%s: Could not read key matrix\n", __func__);
return -1;
}
return cros_ec_register(dev);
}
-#else
-
-/**
- * Initialize sandbox EC emulation.
- *
- * @param dev CROS_EC device
- * @param blob Device tree blob
- * @return 0 if ok, -1 on error
- */
-int cros_ec_sandbox_init(struct cros_ec_dev *dev, const void *blob)
-{
- struct ec_state *ec = &s_state;
- int node;
- int err;
-
- node = fdtdec_next_compatible(blob, 0, COMPAT_GOOGLE_CROS_EC);
- if (node < 0) {
- debug("Failed to find chrome-ec node'\n");
- return -1;
- }
-
- err = cros_ec_decode_ec_flash(blob, node, &ec->ec_config);
- if (err)
- return err;
-
- node = fdtdec_next_compatible(blob, 0, COMPAT_GOOGLE_CROS_EC_KEYB);
- if (node < 0) {
- debug("%s: No cros_ec keyboard found\n", __func__);
- } else if (keyscan_read_fdt_matrix(ec, blob, node)) {
- debug("%s: Could not read key matrix\n", __func__);
- return -1;
- }
-
- /* If we loaded EC data, check that the length matches */
- if (ec->flash_data &&
- ec->flash_data_len != ec->ec_config.flash.length) {
- printf("EC data length is %x, expected %x, discarding data\n",
- ec->flash_data_len, ec->ec_config.flash.length);
- os_free(ec->flash_data);
- ec->flash_data = NULL;
- }
-
- /* Otherwise allocate the memory */
- if (!ec->flash_data) {
- ec->flash_data_len = ec->ec_config.flash.length;
- ec->flash_data = os_malloc(ec->flash_data_len);
- if (!ec->flash_data)
- return -ENOMEM;
- }
-
- return 0;
-}
-#endif
-
-#ifdef CONFIG_DM_CROS_EC
struct dm_cros_ec_ops cros_ec_ops = {
.packet = cros_ec_sandbox_packet,
};
static const struct udevice_id cros_ec_ids[] = {
- { .compatible = "google,cros-ec" },
+ { .compatible = "google,cros-ec-sandbox" },
{ }
};
U_BOOT_DRIVER(cros_ec_sandbox) = {
- .name = "cros_ec",
+ .name = "cros_ec_sandbox",
.id = UCLASS_CROS_EC,
.of_match = cros_ec_ids,
.probe = cros_ec_probe,
.priv_auto_alloc_size = sizeof(struct ec_state),
.ops = &cros_ec_ops,
};
-#endif
projects / u-boot / blobdiff