1/* SPDX-License-Identifier: GPL-2.0-only */ 2/* Copyright (C) 2013--2024 Intel Corporation */ 3 4#ifndef IPU6_BUTTRESS_H 5#define IPU6_BUTTRESS_H 6 7#include <linux/completion.h> 8#include <linux/irqreturn.h> 9#include <linux/list.h> 10#include <linux/mutex.h> 11 12struct device; 13struct firmware; 14struct ipu6_device; 15struct ipu6_bus_device; 16 17#define BUTTRESS_PS_FREQ_STEP 25U 18#define BUTTRESS_MIN_FORCE_PS_FREQ (BUTTRESS_PS_FREQ_STEP * 8) 19#define BUTTRESS_MAX_FORCE_PS_FREQ (BUTTRESS_PS_FREQ_STEP * 32) 20 21#define BUTTRESS_IS_FREQ_STEP 25U 22#define BUTTRESS_MIN_FORCE_IS_FREQ (BUTTRESS_IS_FREQ_STEP * 8) 23#define BUTTRESS_MAX_FORCE_IS_FREQ (BUTTRESS_IS_FREQ_STEP * 22) 24 25struct ipu6_buttress_ctrl { 26 u32 freq_ctl, pwr_sts_shift, pwr_sts_mask, pwr_sts_on, pwr_sts_off; 27 unsigned int ratio; 28 unsigned int qos_floor; 29 bool started; 30}; 31 32struct ipu6_buttress_ipc { 33 struct completion send_complete; 34 struct completion recv_complete; 35 u32 nack; 36 u32 nack_mask; 37 u32 recv_data; 38 u32 csr_out; 39 u32 csr_in; 40 u32 db0_in; 41 u32 db0_out; 42 u32 data0_out; 43 u32 data0_in; 44}; 45 46struct ipu6_buttress { 47 struct mutex power_mutex, auth_mutex, cons_mutex, ipc_mutex; 48 struct ipu6_buttress_ipc cse; 49 struct ipu6_buttress_ipc ish; 50 struct list_head constraints; 51 u32 wdt_cached_value; 52 bool force_suspend; 53 u32 ref_clk; 54}; 55 56enum ipu6_buttress_ipc_domain { 57 IPU6_BUTTRESS_IPC_CSE, 58 IPU6_BUTTRESS_IPC_ISH, 59}; 60 61struct ipu6_ipc_buttress_bulk_msg { 62 u32 cmd; 63 u32 expected_resp; 64 bool require_resp; 65 u8 cmd_size; 66}; 67 68int ipu6_buttress_ipc_reset(struct ipu6_device *isp, 69 struct ipu6_buttress_ipc *ipc); 70int ipu6_buttress_map_fw_image(struct ipu6_bus_device *sys, 71 const struct firmware *fw, 72 struct sg_table *sgt); 73void ipu6_buttress_unmap_fw_image(struct ipu6_bus_device *sys, 74 struct sg_table *sgt); 75int ipu6_buttress_power(struct device *dev, struct ipu6_buttress_ctrl *ctrl, 76 bool on); 77bool ipu6_buttress_get_secure_mode(struct ipu6_device *isp); 78int ipu6_buttress_authenticate(struct ipu6_device *isp); 79int ipu6_buttress_reset_authentication(struct ipu6_device *isp); 80bool ipu6_buttress_auth_done(struct ipu6_device *isp); 81int ipu6_buttress_start_tsc_sync(struct ipu6_device *isp); 82void ipu6_buttress_tsc_read(struct ipu6_device *isp, u64 *val); 83u64 ipu6_buttress_tsc_ticks_to_ns(u64 ticks, const struct ipu6_device *isp); 84 85irqreturn_t ipu6_buttress_isr(int irq, void *isp_ptr); 86irqreturn_t ipu6_buttress_isr_threaded(int irq, void *isp_ptr); 87int ipu6_buttress_init(struct ipu6_device *isp); 88void ipu6_buttress_exit(struct ipu6_device *isp); 89void ipu6_buttress_csi_port_config(struct ipu6_device *isp, 90 u32 legacy, u32 combo); 91void ipu6_buttress_restore(struct ipu6_device *isp); 92#endif /* IPU6_BUTTRESS_H */ 93