u-boot/include/cros_ec.h

6  * SPDX-License-Identifier:	GPL-2.0+
21 	struct gpio_desc ec_int;	/* GPIO used as EC interrupt line */
26 	 * These two buffers will always be dword-aligned and include enough
27 	 * space for up to 7 word-alignment bytes also, so we can ensure that
28 	 * the body of the message is always dword-aligned (64-bit).
41  * Hard-code the number of columns we happen to know we have right now.  It
52 /* Holds information about the Chrome EC */
54 	struct fmap_entry flash;	/* Address and size of EC flash */
56 	 * Byte value of erased flash, or -1 if not known. It is normally
64  * Read the ID of the CROS-EC device
66  * The ID is a string identifying the CROS-EC device.
68  * @param dev		CROS-EC device
71  * @return 0 if ok, -1 on error
76  * Read a keyboard scan from the CROS-EC device
80  * @param dev		CROS-EC device
82  * @return 0 if ok, -1 on error
87  * Read which image is currently running on the CROS-EC device.
89  * @param dev		CROS-EC device
97  * Read the hash of the CROS-EC device firmware.
99  * @param dev		CROS-EC device
107  * Send a reboot command to the CROS-EC device.
111  * @param dev		CROS-EC device
120  * Check if the CROS-EC device has an interrupt pending.
122  * Read the status of the external interrupt connected to the CROS-EC device.
125  * @param dev		CROS-EC device
140  * Initialise the Chromium OS EC driver
145  *	expected), -ve if we should have an cros_ec device but failed to find
146  *	one, or init failed (-CROS_EC_ERR_...).
153  * @param dev		CROS-EC device
162  * @param dev		CROS-EC device
171  * @param dev		CROS-EC device
180  * @param dev		CROS-EC device
185  * @param prot          Destination for updated protection state from EC.
196  * @param dev		CROS-EC device
202  * Update the EC RW copy.
204  * @param dev		CROS-EC device
213  * Return a pointer to the board's CROS-EC device
217  * @return pointer to CROS-EC device, or NULL if none is available
230 		((struct dm_cros_ec_ops *)(dev)->driver->ops)
238  * @param cmd	Command number associated with data, or -1 for none
245  * Calculate a simple 8-bit checksum of a data block
259  * Read an arbitrary amount of data from the EC flash, by repeatedly reading
265  * @param dev		CROS-EC device
269  * @return 0 if ok, -1 on error
277  * This function reads back parameters of the flash as reported by the EC
288  * Write an arbitrary amount of data to the EC flash, by repeatedly writing
294  * Attempting to write to the region where the EC is currently running from
297  * @param dev		CROS-EC device
301  * @return 0 if ok, -1 on error
309  * @param dev		CROS-EC device
311  * @param offset	Returns offset of flash region in EC flash
313  * @return 0 if ok, -1 on error
319  * Read/write VbNvContext from/to a CROS-EC device.
321  * @param dev		CROS-EC device
323  * @return 0 if ok, -1 on error
329  * Read the version information for the EC images
331  * @param dev		CROS-EC device
333  * @return 0 if ok, -1 on error
339  * Read the build information for the EC
341  * @param dev		CROS-EC device
343  * @return 0 if ok, -1 on error
350  * @param dev		CROS-EC device
353  * @return 0 if ok, -1 on error
360  * @param dev		CROS-EC device
363  * @return 0 if ok, -1 on error
370  * This permits delayed reporting of the EC error if it failed during
373  * @return error (0 if there was no error, -ve if there was an error)
378  * Returns information from the FDT about the Chrome EC flash
389  * @param ec		CROS-EC device
395  * Tunnel an I2C transfer to the EC
397  * @param dev		CROS-EC device
398  * @param port		The remote port on EC to use