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/* 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_ */
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