/*
 * Copyright (c) 2019 Intel Corporation
 *
 * SPDX-License-Identifier: Apache-2.0
 */

#include <string.h>
#include <errno.h>

#include <cavs/version.h>

#include <sys/sys_io.h>

#include <adsp/cache.h>

#ifndef __INC_SOC_H
#define __INC_SOC_H

/* macros related to interrupt handling */
#define XTENSA_IRQ_NUM_SHIFT			0
#define CAVS_IRQ_NUM_SHIFT			8
#define XTENSA_IRQ_NUM_MASK			0xff
#define CAVS_IRQ_NUM_MASK			0xff

/*
 * IRQs are mapped on 2 levels. 3rd and 4th level are left as 0x00.
 *
 * 1. Peripheral Register bit offset.
 * 2. CAVS logic bit offset.
 */
#define XTENSA_IRQ_NUMBER(_irq) \
	((_irq >> XTENSA_IRQ_NUM_SHIFT) & XTENSA_IRQ_NUM_MASK)
#define CAVS_IRQ_NUMBER(_irq) \
	(((_irq >> CAVS_IRQ_NUM_SHIFT) & CAVS_IRQ_NUM_MASK) - 1)

/* Macro that aggregates the bi-level interrupt into an IRQ number */
#define SOC_AGGREGATE_IRQ(cavs_irq, core_irq)		\
	( \
	 ((core_irq & XTENSA_IRQ_NUM_MASK) << XTENSA_IRQ_NUM_SHIFT) | \
	 (((cavs_irq + 1) & CAVS_IRQ_NUM_MASK) << CAVS_IRQ_NUM_SHIFT) \
	)

#define CAVS_L2_AGG_INT_LEVEL2			DT_IRQN(DT_INST(0, intel_cavs_intc))
#define CAVS_L2_AGG_INT_LEVEL3			DT_IRQN(DT_INST(1, intel_cavs_intc))
#define CAVS_L2_AGG_INT_LEVEL4			DT_IRQN(DT_INST(2, intel_cavs_intc))
#define CAVS_L2_AGG_INT_LEVEL5			DT_IRQN(DT_INST(3, intel_cavs_intc))

#define CAVS_ICTL_INT_CPU_OFFSET(x)		(0x40 * x)

#define IOAPIC_EDGE				0
#define IOAPIC_HIGH				0

/* I2S */
#define I2S_CAVS_IRQ(i2s_num)			\
	SOC_AGGREGATE_IRQ(0, (i2s_num), CAVS_L2_AGG_INT_LEVEL5)

#define I2S0_CAVS_IRQ				I2S_CAVS_IRQ(0)
#define I2S1_CAVS_IRQ				I2S_CAVS_IRQ(1)
#define I2S2_CAVS_IRQ				I2S_CAVS_IRQ(2)
#define I2S3_CAVS_IRQ				I2S_CAVS_IRQ(3)

#define SSP_MN_DIV_SIZE				(8)
#define SSP_MN_DIV_BASE(x)			\
	(0x00078D00 + ((x) * SSP_MN_DIV_SIZE))

#define PDM_BASE				DMIC_BASE

/* SOC DSP SHIM Registers */
#if CAVS_VERSION == CAVS_VERSION_1_5
#define SOC_DSP_SHIM_REG_BASE			0x00001000
#else
#define SOC_DSP_SHIM_REG_BASE			0x00071f00
#endif

/* SOC DSP SHIM Register - Clock Control */
#define SOC_CLKCTL_REQ_AUDIO_PLL_CLK		BIT(31)
#define SOC_CLKCTL_REQ_XTAL_CLK			BIT(30)
#define SOC_CLKCTL_REQ_FAST_CLK			BIT(29)

#define SOC_CLKCTL_TCPLCG_POS(x)		(16 + x)
#define SOC_CLKCTL_TCPLCG_DIS(x)		(1 << SOC_CLKCTL_TCPLCG_POS(x))

#define SOC_CLKCTL_DPCS_POS(x)			(8 + x)
#define SOC_CLKCTL_DPCS_DIV1(x)			(0 << SOC_CLKCTL_DPCS_POS(x))
#define SOC_CLKCTL_DPCS_DIV2(x)			(1 << SOC_CLKCTL_DPCS_POS(x))
#define SOC_CLKCTL_DPCS_DIV4(x)			(3 << SOC_CLKCTL_DPCS_POS(x))

#define SOC_CLKCTL_TCPAPLLS			BIT(7)

#define SOC_CLKCTL_LDCS_POS			(5)
#define SOC_CLKCTL_LDCS_LMPCS			(0 << SOC_CLKCTL_LDCS_POS)
#define SOC_CLKCTL_LDCS_LDOCS			(1 << SOC_CLKCTL_LDCS_POS)

#define SOC_CLKCTL_HDCS_POS			(4)
#define SOC_CLKCTL_HDCS_HMPCS			(0 << SOC_CLKCTL_HDCS_POS)
#define SOC_CLKCTL_HDCS_HDOCS			(1 << SOC_CLKCTL_HDCS_POS)

#define SOC_CLKCTL_LDOCS_POS			(3)
#define SOC_CLKCTL_LDOCS_PLL			(0 << SOC_CLKCTL_LDOCS_POS)
#define SOC_CLKCTL_LDOCS_FAST			(1 << SOC_CLKCTL_LDOCS_POS)

#define SOC_CLKCTL_HDOCS_POS			(2)
#define SOC_CLKCTL_HDOCS_PLL			(0 << SOC_CLKCTL_HDOCS_POS)
#define SOC_CLKCTL_HDOCS_FAST			(1 << SOC_CLKCTL_HDOCS_POS)

#define SOC_CLKCTL_LPMEM_PLL_CLK_SEL_POS	(1)
#define SOC_CLKCTL_LPMEM_PLL_CLK_SEL_DIV2	\
	(0 << SOC_CLKCTL_LPMEM_PLL_CLK_SEL_POS)
#define SOC_CLKCTL_LPMEM_PLL_CLK_SEL_DIV4	\
	(1 << SOC_CLKCTL_LPMEM_PLL_CLK_SEL_POS)

#define SOC_CLKCTL_HPMEM_PLL_CLK_SEL_POS	(0)
#define SOC_CLKCTL_HPMEM_PLL_CLK_SEL_DIV2	\
	(0 << SOC_CLKCTL_HPMEM_PLL_CLK_SEL_POS)
#define SOC_CLKCTL_HPMEM_PLL_CLK_SEL_DIV4	\
	(1 << SOC_CLKCTL_HPMEM_PLL_CLK_SEL_POS)

/* SOC DSP SHIM Register - Power Control */
#define SOC_PWRCTL_DISABLE_PWR_GATING_DSP0	BIT(0)
#define SOC_PWRCTL_DISABLE_PWR_GATING_DSP1	BIT(1)

/* DSP Wall Clock Timers (0 and 1) */
#define DSP_WCT_IRQ(x) \
	SOC_AGGREGATE_IRQ((22 + x), CAVS_L2_AGG_INT_LEVEL2)

#define DSP_WCT_CS_TA(x)			BIT(x)
#define DSP_WCT_CS_TT(x)			BIT(4 + x)

struct soc_dsp_shim_regs {
	uint32_t	reserved[8];
	union {
		struct {
			uint32_t walclk32_lo;
			uint32_t walclk32_hi;
		};
		uint64_t	walclk;
	};
	uint32_t	dspwctcs;
	uint32_t	reserved1[1];
	union {
		struct {
			uint32_t dspwct0c32_lo;
			uint32_t dspwct0c32_hi;
		};
		uint64_t	dspwct0c;
	};
	union {
		struct {
			uint32_t dspwct1c32_lo;
			uint32_t dspwct1c32_hi;
		};
		uint64_t	dspwct1c;
	};
	uint32_t	reserved2[14];
	uint32_t	clkctl;
	uint32_t	clksts;
	uint32_t	reserved3[4];
	uint16_t	pwrctl;
	uint16_t	pwrsts;
	uint32_t	lpsctl;
	uint32_t	lpsdmas0;
	uint32_t	lpsdmas1;
	uint32_t	reserved4[22];
};

extern void z_soc_irq_enable(uint32_t irq);
extern void z_soc_irq_disable(uint32_t irq);
extern int z_soc_irq_is_enabled(unsigned int irq);

#endif /* __INC_SOC_H */