firmware: imx: add misc svc support (15e1f2bc) · Commits · 戴 / test

drivers/firmware/imx/Makefile

+1 −1

Original line number	Diff line number	Diff line
		# SPDX-License-Identifier: GPL-2.0
		obj-$(CONFIG_IMX_SCU) += imx-scu.o
		obj-$(CONFIG_IMX_SCU) += imx-scu.o misc.o

drivers/firmware/imx/misc.c

0 → 100644

+99 −0

Original line number	Diff line number	Diff line
		// SPDX-License-Identifier: GPL-2.0+
		/*
		* Copyright (C) 2016 Freescale Semiconductor, Inc.
		* Copyright 2017~2018 NXP
		* Author: Dong Aisheng <aisheng.dong@nxp.com>
		*
		* File containing client-side RPC functions for the MISC service. These
		* function are ported to clients that communicate to the SC.
		*
		*/

		#include <linux/firmware/imx/svc/misc.h>

		struct imx_sc_msg_req_misc_set_ctrl {
		struct imx_sc_rpc_msg hdr;
		u32 ctrl;
		u32 val;
		u16 resource;
		} __packed;

		struct imx_sc_msg_req_misc_get_ctrl {
		struct imx_sc_rpc_msg hdr;
		u32 ctrl;
		u16 resource;
		} __packed;

		struct imx_sc_msg_resp_misc_get_ctrl {
		struct imx_sc_rpc_msg hdr;
		u32 val;
		} __packed;

		/*
		* This function sets a miscellaneous control value.
		*
		* @param[in] ipc IPC handle
		* @param[in] resource resource the control is associated with
		* @param[in] ctrl control to change
		* @param[in] val value to apply to the control
		*
		* @return Returns 0 for success and < 0 for errors.
		*/

		int imx_sc_misc_set_control(struct imx_sc_ipc *ipc, u32 resource,
		u8 ctrl, u32 val)
		{
		struct imx_sc_msg_req_misc_set_ctrl msg;
		struct imx_sc_rpc_msg *hdr = &msg.hdr;

		hdr->ver = IMX_SC_RPC_VERSION;
		hdr->svc = (uint8_t)IMX_SC_RPC_SVC_MISC;
		hdr->func = (uint8_t)IMX_SC_MISC_FUNC_SET_CONTROL;
		hdr->size = 4;

		msg.ctrl = ctrl;
		msg.val = val;
		msg.resource = resource;

		return imx_scu_call_rpc(ipc, &msg, true);
		}
		EXPORT_SYMBOL(imx_sc_misc_set_control);

		/*
		* This function gets a miscellaneous control value.
		*
		* @param[in] ipc IPC handle
		* @param[in] resource resource the control is associated with
		* @param[in] ctrl control to get
		* @param[out] val pointer to return the control value
		*
		* @return Returns 0 for success and < 0 for errors.
		*/

		int imx_sc_misc_get_control(struct imx_sc_ipc *ipc, u32 resource,
		u8 ctrl, u32 *val)
		{
		struct imx_sc_msg_req_misc_get_ctrl msg;
		struct imx_sc_msg_resp_misc_get_ctrl *resp;
		struct imx_sc_rpc_msg *hdr = &msg.hdr;
		int ret;

		hdr->ver = IMX_SC_RPC_VERSION;
		hdr->svc = (uint8_t)IMX_SC_RPC_SVC_MISC;
		hdr->func = (uint8_t)IMX_SC_MISC_FUNC_GET_CONTROL;
		hdr->size = 3;

		msg.ctrl = ctrl;
		msg.resource = resource;

		ret = imx_scu_call_rpc(ipc, &msg, true);
		if (ret)
		return ret;

		resp = (struct imx_sc_msg_resp_misc_get_ctrl *)&msg;
		if (val != NULL)
		*val = resp->val;

		return 0;
		}
		EXPORT_SYMBOL(imx_sc_misc_get_control);

include/linux/firmware/imx/sci.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -13,4 +13,5 @@
		#include <linux/firmware/imx/ipc.h>
		#include <linux/firmware/imx/types.h>

		#include <linux/firmware/imx/svc/misc.h>
		#endif /* _SC_SCI_H */

include/linux/firmware/imx/svc/misc.h

0 → 100644

+55 −0

Original line number	Diff line number	Diff line
		/* SPDX-License-Identifier: GPL-2.0+ */
		/*
		* Copyright (C) 2016 Freescale Semiconductor, Inc.
		* Copyright 2017~2018 NXP
		*
		* Header file containing the public API for the System Controller (SC)
		* Miscellaneous (MISC) function.
		*
		* MISC_SVC (SVC) Miscellaneous Service
		*
		* Module for the Miscellaneous (MISC) service.
		*/

		#ifndef _SC_MISC_API_H
		#define _SC_MISC_API_H

		#include <linux/firmware/imx/sci.h>

		/*
		* This type is used to indicate RPC MISC function calls.
		*/
		enum imx_misc_func {
		IMX_SC_MISC_FUNC_UNKNOWN = 0,
		IMX_SC_MISC_FUNC_SET_CONTROL = 1,
		IMX_SC_MISC_FUNC_GET_CONTROL = 2,
		IMX_SC_MISC_FUNC_SET_MAX_DMA_GROUP = 4,
		IMX_SC_MISC_FUNC_SET_DMA_GROUP = 5,
		IMX_SC_MISC_FUNC_SECO_IMAGE_LOAD = 8,
		IMX_SC_MISC_FUNC_SECO_AUTHENTICATE = 9,
		IMX_SC_MISC_FUNC_DEBUG_OUT = 10,
		IMX_SC_MISC_FUNC_WAVEFORM_CAPTURE = 6,
		IMX_SC_MISC_FUNC_BUILD_INFO = 15,
		IMX_SC_MISC_FUNC_UNIQUE_ID = 19,
		IMX_SC_MISC_FUNC_SET_ARI = 3,
		IMX_SC_MISC_FUNC_BOOT_STATUS = 7,
		IMX_SC_MISC_FUNC_BOOT_DONE = 14,
		IMX_SC_MISC_FUNC_OTP_FUSE_READ = 11,
		IMX_SC_MISC_FUNC_OTP_FUSE_WRITE = 17,
		IMX_SC_MISC_FUNC_SET_TEMP = 12,
		IMX_SC_MISC_FUNC_GET_TEMP = 13,
		IMX_SC_MISC_FUNC_GET_BOOT_DEV = 16,
		IMX_SC_MISC_FUNC_GET_BUTTON_STATUS = 18,
		};

		/*
		* Control Functions
		*/

		int imx_sc_misc_set_control(struct imx_sc_ipc *ipc, u32 resource,
		u8 ctrl, u32 val);

		int imx_sc_misc_get_control(struct imx_sc_ipc *ipc, u32 resource,
		u8 ctrl, u32 *val);

		#endif /* _SC_MISC_API_H */

Admin message