1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _ISP1760_HCD_H_
3#define _ISP1760_HCD_H_
4
5#include <regmap.h>
6
7#include "isp1760-regs.h"
8
9struct isp1760_qh;
10struct isp1760_qtd;
11struct resource;
12struct usb_hcd;
13
14struct isp1760_slotinfo {
15	struct isp1760_qh *qh;
16	struct isp1760_qtd *qtd;
17	unsigned long timestamp;
18};
19
20/* chip memory management */
21#define ISP176x_BLOCK_MAX (32 + 20 + 4)
22#define ISP176x_BLOCK_NUM 3
23
24struct isp1760_memory_layout {
25	unsigned int blocks[ISP176x_BLOCK_NUM];
26	unsigned int blocks_size[ISP176x_BLOCK_NUM];
27
28	unsigned int slot_num;
29	unsigned int payload_blocks;
30	unsigned int payload_area_size;
31};
32
33struct isp1760_memory_chunk {
34	unsigned int start;
35	unsigned int size;
36	unsigned int free;
37};
38
39enum isp1760_queue_head_types {
40	QH_CONTROL,
41	QH_BULK,
42	QH_INTERRUPT,
43	QH_END
44};
45
46struct isp1760_hcd {
47	struct usb_hcd		*hcd;
48	struct udevice		*dev;
49
50	void __iomem		*base;
51
52	struct regmap		*regs;
53	struct regmap_field	*fields[HC_FIELD_MAX];
54
55	bool			is_isp1763;
56	const struct isp1760_memory_layout	*memory_layout;
57
58	struct isp1760_slotinfo	*atl_slots;
59	int			atl_done_map;
60	struct isp1760_slotinfo	*int_slots;
61	int			int_done_map;
62	struct isp1760_memory_chunk memory_pool[ISP176x_BLOCK_MAX];
63	struct list_head	qh_list[QH_END];
64
65	/* periodic schedule support */
66#define	DEFAULT_I_TDPS		1024
67	unsigned int		periodic_size;
68	unsigned int		i_thresh;
69	unsigned long		reset_done;
70	unsigned long		next_statechange;
71};
72
73int isp1760_hcd_register(struct isp1760_hcd *priv, struct resource *mem,
74			 int irq, unsigned long irqflags, struct udevice *dev);
75void isp1760_hcd_unregister(struct isp1760_hcd *priv);
76int isp1760_hcd_lowlevel_init(struct isp1760_hcd *priv);
77
78int isp1760_init_kmem_once(void);
79void isp1760_deinit_kmem_cache(void);
80
81#endif /* _ISP1760_HCD_H_ */
82