[linux-2.6-block.git] / drivers / usb / isp1760 / isp1760-hcd.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ISP1760_HCD_H_
#define _ISP1760_HCD_H_

#include <linux/spinlock.h>

struct isp1760_qh;
struct isp1760_qtd;
struct resource;
struct usb_hcd;

/*
 * 60kb divided in:
 * - 32 blocks @ 256  bytes
 * - 20 blocks @ 1024 bytes
 * -  4 blocks @ 8192 bytes
 */

#define BLOCK_1_NUM 32
#define BLOCK_2_NUM 20
#define BLOCK_3_NUM 4

#define BLOCK_1_SIZE 256
#define BLOCK_2_SIZE 1024
#define BLOCK_3_SIZE 8192
#define BLOCKS (BLOCK_1_NUM + BLOCK_2_NUM + BLOCK_3_NUM)
#define MAX_PAYLOAD_SIZE BLOCK_3_SIZE
#define PAYLOAD_AREA_SIZE 0xf000

struct isp1760_slotinfo {
	struct isp1760_qh *qh;
	struct isp1760_qtd *qtd;
	unsigned long timestamp;
};

/* chip memory management */
struct isp1760_memory_chunk {
	unsigned int start;
	unsigned int size;
	unsigned int free;
};

enum isp1760_queue_head_types {
	QH_CONTROL,
	QH_BULK,
	QH_INTERRUPT,
	QH_END
};

struct isp1760_hcd {
#ifdef CONFIG_USB_ISP1760_HCD
	struct usb_hcd		*hcd;

	u32 hcs_params;
	spinlock_t		lock;
	struct isp1760_slotinfo	atl_slots[32];
	int			atl_done_map;
	struct isp1760_slotinfo	int_slots[32];
	int			int_done_map;
	struct isp1760_memory_chunk memory_pool[BLOCKS];
	struct list_head	qh_list[QH_END];

	/* periodic schedule support */
#define	DEFAULT_I_TDPS		1024
	unsigned		periodic_size;
	unsigned		i_thresh;
	unsigned long		reset_done;
	unsigned long		next_statechange;
#endif
};

#ifdef CONFIG_USB_ISP1760_HCD
int isp1760_hcd_register(struct isp1760_hcd *priv, void __iomem *regs,
			 struct resource *mem, int irq, unsigned long irqflags,
			 struct device *dev);
void isp1760_hcd_unregister(struct isp1760_hcd *priv);

int isp1760_init_kmem_once(void);
void isp1760_deinit_kmem_cache(void);
#else
static inline int isp1760_hcd_register(struct isp1760_hcd *priv,
				       void __iomem *regs, struct resource *mem,
				       int irq, unsigned long irqflags,
				       struct device *dev)
{
	return 0;
}

static inline void isp1760_hcd_unregister(struct isp1760_hcd *priv)
{
}

static inline int isp1760_init_kmem_once(void)
{
	return 0;
}

static inline void isp1760_deinit_kmem_cache(void)
{
}
#endif

#endif /* _ISP1760_HCD_H_ */
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
db11e47d SS	2	#ifndef _ISP1760_HCD_H_
	3	#define _ISP1760_HCD_H_
	4
e19c99e7	5	#include <linux/spinlock.h>
10c73f09	6
e19c99e7 LP	7	struct isp1760_qh;
	8	struct isp1760_qtd;
	9	struct resource;
	10	struct usb_hcd;
db11e47d	11
e19c99e7 LP	12	/*
	13	* 60kb divided in:
	14	* - 32 blocks @ 256 bytes
	15	* - 20 blocks @ 1024 bytes
	16	* - 4 blocks @ 8192 bytes
	17	*/
db11e47d	18
e19c99e7 LP	19	#define BLOCK_1_NUM 32
	20	#define BLOCK_2_NUM 20
	21	#define BLOCK_3_NUM 4
db11e47d	22
e19c99e7 LP	23	#define BLOCK_1_SIZE 256
	24	#define BLOCK_2_SIZE 1024
	25	#define BLOCK_3_SIZE 8192
	26	#define BLOCKS (BLOCK_1_NUM + BLOCK_2_NUM + BLOCK_3_NUM)
	27	#define MAX_PAYLOAD_SIZE BLOCK_3_SIZE
	28	#define PAYLOAD_AREA_SIZE 0xf000
db11e47d	29
e19c99e7 LP	30	struct isp1760_slotinfo {
	31	struct isp1760_qh *qh;
	32	struct isp1760_qtd *qtd;
	33	unsigned long timestamp;
	34	};
	35
db11e47d	36	/* chip memory management */
ea0b1fab	37	struct isp1760_memory_chunk {
db11e47d SS	38	unsigned int start;
	39	unsigned int size;
	40	unsigned int free;
	41	};
	42
e19c99e7 LP	43	enum isp1760_queue_head_types {
	44	QH_CONTROL,
	45	QH_BULK,
	46	QH_INTERRUPT,
	47	QH_END
	48	};
db11e47d	49
e19c99e7	50	struct isp1760_hcd {
100832ab	51	#ifdef CONFIG_USB_ISP1760_HCD
e19c99e7 LP	52	struct usb_hcd *hcd;
	53
	54	u32 hcs_params;
	55	spinlock_t lock;
	56	struct isp1760_slotinfo atl_slots[32];
	57	int atl_done_map;
	58	struct isp1760_slotinfo int_slots[32];
	59	int int_done_map;
	60	struct isp1760_memory_chunk memory_pool[BLOCKS];
	61	struct list_head qh_list[QH_END];
	62
	63	/* periodic schedule support */
	64	#define DEFAULT_I_TDPS 1024
	65	unsigned periodic_size;
	66	unsigned i_thresh;
	67	unsigned long reset_done;
	68	unsigned long next_statechange;
100832ab	69	#endif
e19c99e7	70	};
db11e47d	71
100832ab	72	#ifdef CONFIG_USB_ISP1760_HCD
4b1a577d LP	73	int isp1760_hcd_register(struct isp1760_hcd priv, void __iomem regs,
4b1a577d LP	74	struct resource *mem, int irq, unsigned long irqflags,
5171446a	75	struct device *dev);
4b1a577d	76	void isp1760_hcd_unregister(struct isp1760_hcd *priv);
db11e47d	77
e19c99e7 LP	78	int isp1760_init_kmem_once(void);
e19c99e7 LP	79	void isp1760_deinit_kmem_cache(void);
100832ab LP	80	#else
	81	static inline int isp1760_hcd_register(struct isp1760_hcd *priv,
	82	void __iomem regs, struct resource mem,
	83	int irq, unsigned long irqflags,
	84	struct device *dev)
	85	{
	86	return 0;
	87	}
	88
	89	static inline void isp1760_hcd_unregister(struct isp1760_hcd *priv)
	90	{
	91	}
	92
	93	static inline int isp1760_init_kmem_once(void)
	94	{
	95	return 0;
	96	}
	97
	98	static inline void isp1760_deinit_kmem_cache(void)
	99	{
	100	}
	101	#endif
db11e47d	102
71a9f9d2	103	#endif /* _ISP1760_HCD_H_ */