/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
|
/*
|
* Rockchip HDCP Host Library driver
|
*
|
* Copyright (C) 2022 Rockchip Electronics Co., Ltd
|
*/
|
|
#ifndef _DW_HDCP_HOST_LIB_DRIVER_LINUX_IF_H_
|
#define _DW_HDCP_HOST_LIB_DRIVER_LINUX_IF_H_
|
|
#include <linux/ioctl.h>
|
#include <linux/types.h>
|
|
#define HL_DRIVER_ALLOCATE_DYNAMIC_MEM 0xffffffff
|
/* hl_drv_ioctl numbers */
|
enum {
|
HL_DRV_NR_MIN = 0x10,
|
HL_DRV_NR_INIT,
|
HL_DRV_NR_MEMINFO,
|
HL_DRV_NR_LOAD_CODE,
|
HL_DRV_NR_READ_DATA,
|
HL_DRV_NR_WRITE_DATA,
|
HL_DRV_NR_MEMSET_DATA,
|
HL_DRV_NR_READ_HPI,
|
HL_DRV_NR_WRITE_HPI,
|
|
RK_DRV_NR_GET_STATUS,
|
RK_DRV_NR_RESET,
|
|
HL_DRV_NR_MAX
|
};
|
|
/*
|
* HL_DRV_IOC_INIT: associate file descriptor with the indicated memory. This
|
* must be called before any other hl_drv_ioctl on the file descriptor.
|
*
|
* - hpi_base = base address of HPI registers.
|
* - code_base = base address of firmware memory (0 to allocate internally)
|
* - data_base = base address of data memory (0 to allocate internally)
|
* - code_len, data_len = length of firmware and data memory, respectively.
|
*/
|
#define HL_DRV_IOC_INIT _IOW('H', HL_DRV_NR_INIT, struct hl_drv_ioc_meminfo)
|
|
/*
|
* HL_DRV_IOC_MEMINFO: retrieve memory information from file descriptor.
|
*
|
* Fills out the meminfo struct, returning the values passed to HL_DRV_IOC_INIT
|
* except that the actual base addresses of internal allocations (if any) are
|
* reported.
|
*/
|
#define HL_DRV_IOC_MEMINFO _IOR('H', HL_DRV_NR_MEMINFO, struct hl_drv_ioc_meminfo)
|
|
struct hl_drv_ioc_meminfo {
|
__u32 hpi_base;
|
__u32 code_base;
|
__u32 code_size;
|
__u32 data_base;
|
__u32 data_size;
|
};
|
|
/*
|
* HL_DRV_IOC_LOAD_CODE: write the provided buffer to the firmware memory.
|
*
|
* - len = number of bytes in data buffer
|
* - data = data to write to firmware memory.
|
*
|
* This can only be done once (successfully). Subsequent attempts will
|
* return -EBUSY.
|
*/
|
#define HL_DRV_IOC_LOAD_CODE _IOW('H', HL_DRV_NR_LOAD_CODE, struct hl_drv_ioc_code)
|
|
struct hl_drv_ioc_code {
|
__u32 len;
|
__u8 data[];
|
};
|
|
/*
|
* HL_DRV_IOC_READ_DATA: copy from data memory.
|
* HL_DRV_IOC_WRITE_DATA: copy to data memory.
|
*
|
* - offset = start copying at this byte offset into the data memory.
|
* - len = number of bytes to copy.
|
* - data = for write, buffer containing data to copy.
|
* for read, buffer to which read data will be written.
|
*
|
*/
|
#define HL_DRV_IOC_READ_DATA _IOWR('H', HL_DRV_NR_READ_DATA, struct hl_drv_ioc_data)
|
#define HL_DRV_IOC_WRITE_DATA _IOW('H', HL_DRV_NR_WRITE_DATA, struct hl_drv_ioc_data)
|
|
/*
|
* HL_DRV_IOC_MEMSET_DATA: initialize data memory.
|
*
|
* - offset = start initializatoin at this byte offset into the data memory.
|
* - len = number of bytes to set.
|
* - data[0] = byte value to write to all indicated memory locations.
|
*/
|
#define HL_DRV_IOC_MEMSET_DATA _IOW('H', HL_DRV_NR_MEMSET_DATA, struct hl_drv_ioc_data)
|
|
struct hl_drv_ioc_data {
|
__u32 offset;
|
__u32 len;
|
__u8 data[];
|
};
|
|
/*
|
* HL_DRV_IOC_READ_HPI: read HPI register.
|
* HL_DRV_IOC_WRITE_HPI: write HPI register.
|
*
|
* - offset = byte offset of HPI register to access.
|
* - value = for write, value to write.
|
* for read, location to which result is stored.
|
*/
|
#define HL_DRV_IOC_READ_HPI _IOWR('H', HL_DRV_NR_READ_HPI, struct hl_drv_ioc_hpi_reg)
|
#define HL_DRV_IOC_WRITE_HPI _IOW('H', HL_DRV_NR_WRITE_HPI, struct hl_drv_ioc_hpi_reg)
|
|
struct hl_drv_ioc_hpi_reg {
|
__u32 offset;
|
__u32 value;
|
};
|
|
#define RK_DRV_IOC_GET_STATUS _IOR('H', RK_DRV_NR_GET_STATUS, struct hl_drv_ioc_status)
|
|
struct hl_drv_ioc_status {
|
__u32 connected_status;
|
__u32 booted_status;
|
};
|
|
#define RK_DRV_IOC_RESET _IOR('H', RK_DRV_NR_RESET, __u32)
|
|
#endif /* _DW_HDCP_HOST_LIB_DRIVER_LINUX_IF_H_ */
|
