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/* SPDX-License-Identifier: GPL-2.0-only */
/* Copyright (C) 2013--2024 Intel Corporation */
#ifndef IPU6_BUTTRESS_H
#define IPU6_BUTTRESS_H
#include <linux/completion.h>
#include <linux/irqreturn.h>
#include <linux/list.h>
#include <linux/mutex.h>
struct device;
struct firmware;
struct ipu6_device;
struct ipu6_bus_device;
#define BUTTRESS_PS_FREQ_STEP 25U
#define BUTTRESS_MIN_FORCE_PS_FREQ (BUTTRESS_PS_FREQ_STEP * 8)
#define BUTTRESS_MAX_FORCE_PS_FREQ (BUTTRESS_PS_FREQ_STEP * 32)
#define BUTTRESS_IS_FREQ_STEP 25U
#define BUTTRESS_MIN_FORCE_IS_FREQ (BUTTRESS_IS_FREQ_STEP * 8)
#define BUTTRESS_MAX_FORCE_IS_FREQ (BUTTRESS_IS_FREQ_STEP * 22)
struct ipu6_buttress_ctrl {
u32 freq_ctl, pwr_sts_shift, pwr_sts_mask, pwr_sts_on, pwr_sts_off;
unsigned int ratio;
unsigned int qos_floor;
bool started;
};
struct ipu6_buttress_ipc {
struct completion send_complete;
struct completion recv_complete;
u32 nack;
u32 nack_mask;
u32 recv_data;
u32 csr_out;
u32 csr_in;
u32 db0_in;
u32 db0_out;
u32 data0_out;
u32 data0_in;
};
struct ipu6_buttress {
struct mutex power_mutex, auth_mutex, cons_mutex, ipc_mutex;
struct ipu6_buttress_ipc cse;
struct ipu6_buttress_ipc ish;
struct list_head constraints;
u32 wdt_cached_value;
bool force_suspend;
u32 ref_clk;
};
enum ipu6_buttress_ipc_domain {
IPU6_BUTTRESS_IPC_CSE,
IPU6_BUTTRESS_IPC_ISH,
};
struct ipu6_ipc_buttress_bulk_msg {
u32 cmd;
u32 expected_resp;
bool require_resp;
u8 cmd_size;
};
int ipu6_buttress_ipc_reset(struct ipu6_device *isp,
struct ipu6_buttress_ipc *ipc);
int ipu6_buttress_map_fw_image(struct ipu6_bus_device *sys,
const struct firmware *fw,
struct sg_table *sgt);
void ipu6_buttress_unmap_fw_image(struct ipu6_bus_device *sys,
struct sg_table *sgt);
int ipu6_buttress_power(struct device *dev, struct ipu6_buttress_ctrl *ctrl,
bool on);
bool ipu6_buttress_get_secure_mode(struct ipu6_device *isp);
int ipu6_buttress_authenticate(struct ipu6_device *isp);
int ipu6_buttress_reset_authentication(struct ipu6_device *isp);
bool ipu6_buttress_auth_done(struct ipu6_device *isp);
int ipu6_buttress_start_tsc_sync(struct ipu6_device *isp);
void ipu6_buttress_tsc_read(struct ipu6_device *isp, u64 *val);
u64 ipu6_buttress_tsc_ticks_to_ns(u64 ticks, const struct ipu6_device *isp);
irqreturn_t ipu6_buttress_isr(int irq, void *isp_ptr);
irqreturn_t ipu6_buttress_isr_threaded(int irq, void *isp_ptr);
int ipu6_buttress_init(struct ipu6_device *isp);
void ipu6_buttress_exit(struct ipu6_device *isp);
void ipu6_buttress_csi_port_config(struct ipu6_device *isp,
u32 legacy, u32 combo);
void ipu6_buttress_restore(struct ipu6_device *isp);
#endif /* IPU6_BUTTRESS_H */
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