drivers/clk/qcom/debugcc/debugcc.h

/*
 * Copyright (c) 2019, Linaro Ltd.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 *
 * 3. Neither the name of the copyright holder nor the names of its contributors
 * may be used to endorse or promote products derived from this software without
 * specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */
#ifndef __DEBUGCC_H__
#define __DEBUGCC_H__

#include <linux/bitops.h>
#include <linux/types.h>

#define CORE_CC_BLOCK "core"

struct measure_clk;

struct debug_mux {
	unsigned long base;
	const char *block_name;
	size_t size;

	unsigned int enable_reg;
	unsigned int enable_mask;

	unsigned int mux_reg;
	unsigned int mux_mask;
	unsigned int mux_shift;

	unsigned int div_reg;
	unsigned int div_shift;
	unsigned int div_mask;
	unsigned int div_val;

	unsigned int xo_div4_reg;
	unsigned int debug_ctl_reg;
	unsigned int debug_status_reg;

	unsigned int ahb_reg;
	unsigned int ahb_mask;

	void (*premeasure)(struct debug_mux *mux);
	unsigned long (*measure)(const struct measure_clk *clk);
	void (*postmeasure)(struct debug_mux *mux);
};

struct measure_clk {
	char *name;
	struct debug_mux *primary;
	int mux;

	struct debug_mux *leaf;
	int leaf_mux;

	unsigned int fixed_div;
};

struct debugcc_platform {
	const char *name;
	const struct measure_clk *clocks;
	const struct debug_mux **blocks;
};

#ifdef CONFIG_CLK_QCOM_DEBUG
int qcom_debugcc_run(int argc, char *const argv[]);

int mmap_mux(int devmem, struct debug_mux *mux);
void mux_enable(struct debug_mux *mux);
void mux_disable(struct debug_mux *mux);
unsigned long measure_mccc(const struct measure_clk *clk);

extern struct debugcc_platform qcs404_debugcc;
extern struct debugcc_platform sdm845_debugcc;
extern struct debugcc_platform sm6115_debugcc;
extern struct debugcc_platform sm8250_debugcc;
#else
int qcom_debugcc_run(int argc, char *const argv[]) { return 0; }
#endif

#endif