drivers/usb/host/isp1760-hcd.h

   1 #ifndef _ISP1760_HCD_H_
   2 #define _ISP1760_HCD_H_
   3
   4 #include <linux/spinlock.h>
   5
   6 struct gpio_desc;
   7 struct isp1760_qh;
   8 struct isp1760_qtd;
   9 struct resource;
  10 struct 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
  30 /*
  31  * Device flags that can vary from board to board.  All of these
  32  * indicate the most "atypical" case, so that a devflags of 0 is
  33  * a sane default configuration.
  34  */
  35 #define ISP1760_FLAG_BUS_WIDTH_16       0x00000002 /* 16-bit data bus width */
  36 #define ISP1760_FLAG_OTG_EN             0x00000004 /* Port 1 supports OTG */
  37 #define ISP1760_FLAG_ANALOG_OC          0x00000008 /* Analog overcurrent */
  38 #define ISP1760_FLAG_DACK_POL_HIGH      0x00000010 /* DACK active high */
  39 #define ISP1760_FLAG_DREQ_POL_HIGH      0x00000020 /* DREQ active high */
  40 #define ISP1760_FLAG_ISP1761            0x00000040 /* Chip is ISP1761 */
  41 #define ISP1760_FLAG_INTR_POL_HIGH      0x00000080 /* Interrupt polarity active high */
  42 #define ISP1760_FLAG_INTR_EDGE_TRIG     0x00000100 /* Interrupt edge triggered */
  43
  44 struct isp1760_slotinfo {
  45         struct isp1760_qh *qh;
  46         struct isp1760_qtd *qtd;
  47         unsigned long timestamp;
  48 };
  49
  50 /* chip memory management */
  51 struct isp1760_memory_chunk {
  52         unsigned int start;
  53         unsigned int size;
  54         unsigned int free;
  55 };
  56
  57 enum isp1760_queue_head_types {
  58         QH_CONTROL,
  59         QH_BULK,
  60         QH_INTERRUPT,
  61         QH_END
  62 };
  63
  64 struct isp1760_hcd {
  65         struct usb_hcd          *hcd;
  66
  67         u32 hcs_params;
  68         spinlock_t              lock;
  69         struct isp1760_slotinfo atl_slots[32];
  70         int                     atl_done_map;
  71         struct isp1760_slotinfo int_slots[32];
  72         int                     int_done_map;
  73         struct isp1760_memory_chunk memory_pool[BLOCKS];
  74         struct list_head        qh_list[QH_END];
  75
  76         /* periodic schedule support */
  77 #define DEFAULT_I_TDPS          1024
  78         unsigned                periodic_size;
  79         unsigned                i_thresh;
  80         unsigned long           reset_done;
  81         unsigned long           next_statechange;
  82         unsigned int            devflags;
  83
  84         struct gpio_desc        *rst_gpio;
  85 };
  86
  87 /* exports for if */
  88 int isp1760_register(struct resource *mem, int irq, unsigned long irqflags,
  89                      struct device *dev, unsigned int devflags);
  90 void isp1760_unregister(struct device *dev);
  91
  92 int isp1760_init_kmem_once(void);
  93 void isp1760_deinit_kmem_cache(void);
  94
  95 #endif /* _ISP1760_HCD_H_ */