/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ISP1760_HCD_H_
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#define _ISP1760_HCD_H_
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#include <linux/spinlock.h>
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struct isp1760_qh;
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struct isp1760_qtd;
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struct resource;
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struct usb_hcd;
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/*
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* 60kb divided in:
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* - 32 blocks @ 256 bytes
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* - 20 blocks @ 1024 bytes
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* - 4 blocks @ 8192 bytes
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*/
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#define BLOCK_1_NUM 32
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#define BLOCK_2_NUM 20
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#define BLOCK_3_NUM 4
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#define BLOCK_1_SIZE 256
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#define BLOCK_2_SIZE 1024
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#define BLOCK_3_SIZE 8192
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#define BLOCKS (BLOCK_1_NUM + BLOCK_2_NUM + BLOCK_3_NUM)
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#define MAX_PAYLOAD_SIZE BLOCK_3_SIZE
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#define PAYLOAD_AREA_SIZE 0xf000
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struct isp1760_slotinfo {
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struct isp1760_qh *qh;
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struct isp1760_qtd *qtd;
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unsigned long timestamp;
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};
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/* chip memory management */
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struct isp1760_memory_chunk {
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unsigned int start;
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unsigned int size;
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unsigned int free;
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};
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enum isp1760_queue_head_types {
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QH_CONTROL,
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QH_BULK,
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QH_INTERRUPT,
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QH_END
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};
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struct isp1760_hcd {
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#ifdef CONFIG_USB_ISP1760_HCD
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struct usb_hcd *hcd;
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u32 hcs_params;
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spinlock_t lock;
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struct isp1760_slotinfo atl_slots[32];
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int atl_done_map;
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struct isp1760_slotinfo int_slots[32];
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int int_done_map;
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struct isp1760_memory_chunk memory_pool[BLOCKS];
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struct list_head qh_list[QH_END];
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/* periodic schedule support */
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#define DEFAULT_I_TDPS 1024
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unsigned periodic_size;
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unsigned i_thresh;
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unsigned long reset_done;
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unsigned long next_statechange;
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#endif
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};
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#ifdef CONFIG_USB_ISP1760_HCD
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int isp1760_hcd_register(struct isp1760_hcd *priv, void __iomem *regs,
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struct resource *mem, int irq, unsigned long irqflags,
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struct device *dev);
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void isp1760_hcd_unregister(struct isp1760_hcd *priv);
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int isp1760_init_kmem_once(void);
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void isp1760_deinit_kmem_cache(void);
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#else
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static inline int isp1760_hcd_register(struct isp1760_hcd *priv,
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void __iomem *regs, struct resource *mem,
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int irq, unsigned long irqflags,
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struct device *dev)
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{
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return 0;
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}
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static inline void isp1760_hcd_unregister(struct isp1760_hcd *priv)
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{
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}
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static inline int isp1760_init_kmem_once(void)
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{
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return 0;
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}
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static inline void isp1760_deinit_kmem_cache(void)
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{
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}
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#endif
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#endif /* _ISP1760_HCD_H_ */
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