drivers/usb/isp1760/isp1760-hcd.h

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