diff options
Diffstat (limited to 'kernel/drivers/usb/isp1760/isp1760-hcd.h')
-rw-r--r-- | kernel/drivers/usb/isp1760/isp1760-hcd.h | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/kernel/drivers/usb/isp1760/isp1760-hcd.h b/kernel/drivers/usb/isp1760/isp1760-hcd.h new file mode 100644 index 000000000..0c1c98d6e --- /dev/null +++ b/kernel/drivers/usb/isp1760/isp1760-hcd.h @@ -0,0 +1,102 @@ +#ifndef _ISP1760_HCD_H_ +#define _ISP1760_HCD_H_ + +#include <linux/spinlock.h> + +struct isp1760_qh; +struct isp1760_qtd; +struct resource; +struct usb_hcd; + +/* + * 60kb divided in: + * - 32 blocks @ 256 bytes + * - 20 blocks @ 1024 bytes + * - 4 blocks @ 8192 bytes + */ + +#define BLOCK_1_NUM 32 +#define BLOCK_2_NUM 20 +#define BLOCK_3_NUM 4 + +#define BLOCK_1_SIZE 256 +#define BLOCK_2_SIZE 1024 +#define BLOCK_3_SIZE 8192 +#define BLOCKS (BLOCK_1_NUM + BLOCK_2_NUM + BLOCK_3_NUM) +#define MAX_PAYLOAD_SIZE BLOCK_3_SIZE +#define PAYLOAD_AREA_SIZE 0xf000 + +struct isp1760_slotinfo { + struct isp1760_qh *qh; + struct isp1760_qtd *qtd; + unsigned long timestamp; +}; + +/* chip memory management */ +struct isp1760_memory_chunk { + unsigned int start; + unsigned int size; + unsigned int free; +}; + +enum isp1760_queue_head_types { + QH_CONTROL, + QH_BULK, + QH_INTERRUPT, + QH_END +}; + +struct isp1760_hcd { +#ifdef CONFIG_USB_ISP1760_HCD + struct usb_hcd *hcd; + + u32 hcs_params; + spinlock_t lock; + struct isp1760_slotinfo atl_slots[32]; + int atl_done_map; + struct isp1760_slotinfo int_slots[32]; + int int_done_map; + struct isp1760_memory_chunk memory_pool[BLOCKS]; + struct list_head qh_list[QH_END]; + + /* periodic schedule support */ +#define DEFAULT_I_TDPS 1024 + unsigned periodic_size; + unsigned i_thresh; + unsigned long reset_done; + unsigned long next_statechange; +#endif +}; + +#ifdef CONFIG_USB_ISP1760_HCD +int isp1760_hcd_register(struct isp1760_hcd *priv, void __iomem *regs, + struct resource *mem, int irq, unsigned long irqflags, + struct device *dev); +void isp1760_hcd_unregister(struct isp1760_hcd *priv); + +int isp1760_init_kmem_once(void); +void isp1760_deinit_kmem_cache(void); +#else +static inline int isp1760_hcd_register(struct isp1760_hcd *priv, + void __iomem *regs, struct resource *mem, + int irq, unsigned long irqflags, + struct device *dev) +{ + return 0; +} + +static inline void isp1760_hcd_unregister(struct isp1760_hcd *priv) +{ +} + +static inline int isp1760_init_kmem_once(void) +{ + return 0; +} + +static inline void isp1760_deinit_kmem_cache(void) +{ +} +#endif + +#endif /* _ISP1760_HCD_H_ */ |