LXR linux/drivers/usb/isp1760/isp1760-hcd.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef _ISP1760_HCD_H_
   3#define _ISP1760_HCD_H_
   4
   5#include <linux/spinlock.h>
   6
   7struct isp1760_qh;
   8struct isp1760_qtd;
   9struct resource;
  10struct usb_hcd;
  11
  12/*
  13 * 60kb divided in:
  14 * - 32 blocks @ 256  bytes
  15 * - 20 blocks @ 1024 bytes
  16 * -  4 blocks @ 8192 bytes
  17 */
  18
  19#define BLOCK_1_NUM 32
  20#define BLOCK_2_NUM 20
  21#define BLOCK_3_NUM 4
  22
  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
  29
  30struct isp1760_slotinfo {
  31        struct isp1760_qh *qh;
  32        struct isp1760_qtd *qtd;
  33        unsigned long timestamp;
  34};
  35
  36/* chip memory management */
  37struct isp1760_memory_chunk {
  38        unsigned int start;
  39        unsigned int size;
  40        unsigned int free;
  41};
  42
  43enum isp1760_queue_head_types {
  44        QH_CONTROL,
  45        QH_BULK,
  46        QH_INTERRUPT,
  47        QH_END
  48};
  49
  50struct isp1760_hcd {
  51#ifdef CONFIG_USB_ISP1760_HCD
  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;
  69#endif
  70};
  71
  72#ifdef CONFIG_USB_ISP1760_HCD
  73int isp1760_hcd_register(struct isp1760_hcd *priv, void __iomem *regs,
  74                         struct resource *mem, int irq, unsigned long irqflags,
  75                         struct device *dev);
  76void isp1760_hcd_unregister(struct isp1760_hcd *priv);
  77
  78int isp1760_init_kmem_once(void);
  79void isp1760_deinit_kmem_cache(void);
  80#else
  81static 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
  89static inline void isp1760_hcd_unregister(struct isp1760_hcd *priv)
  90{
  91}
  92
  93static inline int isp1760_init_kmem_once(void)
  94{
  95        return 0;
  96}
  97
  98static inline void isp1760_deinit_kmem_cache(void)
  99{
 100}
 101#endif
 102
 103#endif /* _ISP1760_HCD_H_ */
 104