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/*
* SPDX-FileCopyrightText: Copyright (c) 2025 HiFiPhile (Zixun LI)
* SPDX-FileCopyrightText: Copyright (c) 2025 Ha Thach (tinyusb.org)
* SPDX-License-Identifier: MIT
*
* This file is part of the TinyUSB stack.
*/
#ifndef TUSB_HCD_IP3516_H_
#define TUSB_HCD_IP3516_H_
#ifdef __cplusplus
extern "C" {
#endif
//--------------------------------------------------------------------+
// IP3516 CONFIGURATION & CONSTANTS
//--------------------------------------------------------------------+
#define IP3516_ATL_NUM 32
#define IP3516_PTL_NUM 32
#define IP3516_PTD_TOKEN_OUT 0x00U
#define IP3516_PTD_TOKEN_IN 0x01U
#define IP3516_PTD_TOKEN_SETUP 0x02U
#define IP3516_PTD_EPTYPE_OUT 0x00U
#define IP3516_PTD_EPTYPE_IN 0x01U
#define IP3516_PTD_EPTYPE_SETUP 0x02U
#define IP3516_PTD_MAX_TRANSFER_LENGTH 0x7FFFU
#define IP3516_PTD_DATA_ADDR_MASK 0xFFFFU
#define IP3516_MAX_UFRAME (1UL << 8)
#define IP3516_PERIODIC_TRANSFER_GAP (3U)
#define IP3516_ISO_MULTIPLE_TRANSFER (8U)
//--------------------------------------------------------------------+
// IP3516 PTD Data Structure
//--------------------------------------------------------------------+
// Control Word 1
typedef union {
uint32_t value;
struct {
uint32_t valid : 1;
uint32_t next_ptd : 5;
uint32_t : 1;
uint32_t jump : 1;
uint32_t uframe : 8;
uint32_t mps : 11;
uint32_t : 1;
uint32_t mult : 2;
uint32_t : 2;
};
} ptd_ctrl1_t;
TU_VERIFY_STATIC(sizeof(ptd_ctrl1_t) == 4, "size is not correct");
// Control Word 2
typedef union {
uint32_t value;
struct {
uint32_t ep_num : 4;
uint32_t dev_addr : 7;
uint32_t split : 1;
uint32_t reload : 4;
uint32_t speed : 2;
uint32_t hub_port : 7;
uint32_t hub_addr : 7;
};
} ptd_ctrl2_t;
TU_VERIFY_STATIC(sizeof(ptd_ctrl2_t) == 4, "size is not correct");
// Data Word
typedef union {
uint32_t value;
struct {
uint32_t xfer_len : 15;
uint32_t intr : 1;
uint32_t data_addr : 16;
};
} ptd_data_t;
TU_VERIFY_STATIC(sizeof(ptd_data_t) == 4, "size is not correct");
// State Word
typedef union {
uint32_t value;
struct {
uint32_t xferred_len : 15;
uint32_t token : 2;
uint32_t ep_type : 2;
uint32_t nak_cnt : 4;
uint32_t err_cnt : 2;
uint32_t data_toggle : 1;
uint32_t ping : 1;
uint32_t start_complete : 1;
uint32_t error : 1;
uint32_t babble : 1;
uint32_t halt : 1;
uint32_t active : 1;
};
} ptd_state_t;
TU_VERIFY_STATIC(sizeof(ptd_state_t) == 4, "size is not correct");
// Status Word
typedef union {
uint32_t value;
struct {
uint32_t uframe_active : 8;
uint32_t iso_status0 : 3;
uint32_t iso_status1 : 3;
uint32_t iso_status2 : 3;
uint32_t iso_status3 : 3;
uint32_t iso_status4 : 3;
uint32_t iso_status5 : 3;
uint32_t iso_status6 : 3;
uint32_t iso_status7 : 3;
};
} ptd_status_t;
TU_VERIFY_STATIC(sizeof(ptd_status_t) == 4, "size is not correct");
// ATL (Asynchronous Transfer List) structure
typedef volatile struct {
ptd_ctrl1_t ctrl1;
ptd_ctrl2_t ctrl2;
ptd_data_t data;
ptd_state_t state;
} ip3516_atl_t;
TU_VERIFY_STATIC(sizeof(ip3516_atl_t) == 16, "size is not correct");
// PTL (Periodic Transfer List) structure
typedef volatile struct {
ptd_ctrl1_t ctrl1;
ptd_ctrl2_t ctrl2;
ptd_data_t data;
ptd_state_t state;
ptd_status_t status;
union {
uint32_t value;
struct {
uint32_t uframe_complete : 8;
uint32_t spl_iso_in_0 : 24;
};
} iso_in_0;
uint32_t iso_in_1;
uint32_t iso_in_2;
} ip3516_ptl_t;
TU_VERIFY_STATIC(sizeof(ip3516_ptl_t) == 32, "size is not correct");
// Proprietary Transfer Descriptor
typedef struct {
ip3516_ptl_t intr[IP3516_PTL_NUM];
ip3516_ptl_t iso[IP3516_PTL_NUM];
ip3516_atl_t atl[IP3516_ATL_NUM];
} ip3516_ptd_t;
#ifdef __cplusplus
}
#endif
#endif /* TUSB_HCD_IP3516_H_ */
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