1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _ISP1760_HCD_H_ 3 #define _ISP1760_HCD_H_ 4 5 #include <linux/spinlock.h> 6 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 struct isp1760_slotinfo { 31 struct isp1760_qh *qh; 32 struct isp1760_qtd *qtd; 33 unsigned long timestamp; 34 }; 35 36 /* chip memory management */ 37 struct isp1760_memory_chunk { 38 unsigned int start; 39 unsigned int size; 40 unsigned int free; 41 }; 42 43 enum isp1760_queue_head_types { 44 QH_CONTROL, 45 QH_BULK, 46 QH_INTERRUPT, 47 QH_END 48 }; 49 50 struct 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 73 int isp1760_hcd_register(struct isp1760_hcd *priv, void __iomem *regs, 74 struct resource *mem, int irq, unsigned long irqflags, 75 struct device *dev); 76 void isp1760_hcd_unregister(struct isp1760_hcd *priv); 77 78 int isp1760_init_kmem_once(void); 79 void isp1760_deinit_kmem_cache(void); 80 #else 81 static 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 89 static inline void isp1760_hcd_unregister(struct isp1760_hcd *priv) 90 { 91 } 92 93 static inline int isp1760_init_kmem_once(void) 94 { 95 return 0; 96 } 97 98 static inline void isp1760_deinit_kmem_cache(void) 99 { 100 } 101 #endif 102 103 #endif /* _ISP1760_HCD_H_ */ 104