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/*
* Copyright (c) 2014-2018, NVIDIA CORPORATION. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _LINUX_TEGRA_HSP_H
#define _LINUX_TEGRA_HSP_H
#include <linux/types.h>
enum tegra_hsp_master {
HSP_FIRST_MASTER = 1,
/* secure */
HSP_MASTER_SECURE_CCPLEX = HSP_FIRST_MASTER,
HSP_MASTER_SECURE_DPMU,
HSP_MASTER_SECURE_BPMP,
HSP_MASTER_SECURE_SPE,
HSP_MASTER_SECURE_SCE,
HSP_MASTER_SECURE_DMA,
HSP_MASTER_SECURE_TSECA,
HSP_MASTER_SECURE_TSECB,
HSP_MASTER_SECURE_JTAGM,
HSP_MASTER_SECURE_CSITE,
HSP_MASTER_SECURE_APE,
/* non-secure */
HSP_MASTER_CCPLEX = HSP_FIRST_MASTER + 16,
HSP_MASTER_DPMU,
HSP_MASTER_BPMP,
HSP_MASTER_SPE,
HSP_MASTER_SCE,
HSP_MASTER_DMA,
HSP_MASTER_TSECA,
HSP_MASTER_TSECB,
HSP_MASTER_JTAGM,
HSP_MASTER_CSITE,
HSP_MASTER_APE,
HSP_LAST_MASTER = HSP_MASTER_APE,
};
enum tegra_hsp_doorbell {
HSP_FIRST_DB = 0,
HSP_DB_DPMU = HSP_FIRST_DB,
HSP_DB_CCPLEX,
HSP_DB_CCPLEX_TZ,
HSP_DB_BPMP,
HSP_DB_SPE,
HSP_DB_SCE,
HSP_DB_APE,
HSP_LAST_DB = HSP_DB_APE,
HSP_NR_DBS,
};
typedef void (*db_handler_t)(void *data);
int tegra_hsp_init(void);
int tegra_hsp_db_enable_master(enum tegra_hsp_master master);
int tegra_hsp_db_disable_master(enum tegra_hsp_master master);
int tegra_hsp_db_ring(enum tegra_hsp_doorbell dbell);
int tegra_hsp_db_can_ring(enum tegra_hsp_doorbell dbell);
int tegra_hsp_db_add_handler(int master, db_handler_t handler, void *data);
int tegra_hsp_db_del_handler(int master);
#define tegra_hsp_find_master(mask, master) ((mask) & (1 << (master)))
struct tegra_hsp_sm_pair;
typedef u32 (*tegra_hsp_sm_full_fn)(void *, u32);
typedef void (*tegra_hsp_sm_empty_fn)(void *, u32);
struct tegra_hsp_sm_pair *of_tegra_hsp_sm_pair_request(
const struct device_node *np, u32 index,
tegra_hsp_sm_full_fn, tegra_hsp_sm_empty_fn, void *);
struct tegra_hsp_sm_pair *of_tegra_hsp_sm_pair_by_name(
struct device_node *np, char const *name,
tegra_hsp_sm_full_fn, tegra_hsp_sm_empty_fn, void *);
void tegra_hsp_sm_pair_free(struct tegra_hsp_sm_pair *);
void tegra_hsp_sm_pair_write(struct tegra_hsp_sm_pair *, u32 value);
bool tegra_hsp_sm_pair_is_empty(const struct tegra_hsp_sm_pair *);
#endif
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