| rjw | 1f88458 | 2022-01-06 17:20:42 +0800 | [diff] [blame^] | 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_ */ |