114 lines
3.0 KiB
C
114 lines
3.0 KiB
C
#ifndef RP2040_COMMON_H_
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#define RP2040_COMMON_H_
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#if defined(RP2040_USB_HOST_MODE) && defined(RP2040_USB_DEVICE_MODE)
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#error TinyUSB device and host mode not supported at the same time
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#endif
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#include "common/tusb_common.h"
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#include "pico.h"
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#include "hardware/structs/usb.h"
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#include "hardware/irq.h"
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#include "hardware/resets.h"
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#if defined(PICO_RP2040_USB_DEVICE_ENUMERATION_FIX) && !defined(TUD_OPT_RP2040_USB_DEVICE_ENUMERATION_FIX)
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#define TUD_OPT_RP2040_USB_DEVICE_ENUMERATION_FIX PICO_RP2040_USB_DEVICE_ENUMERATION_FIX
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#endif
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#ifndef PICO_RP2040_USB_FAST_IRQ
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#define PICO_RP2040_USB_FAST_IRQ 0
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#endif
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#if PICO_RP2040_USB_FAST_IRQ
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#define __tusb_irq_path_func(x) __no_inline_not_in_flash_func(x)
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#else
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#define __tusb_irq_path_func(x) x
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#endif
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#define pico_info(...) TU_LOG(2, __VA_ARGS__)
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#define pico_trace(...) TU_LOG(3, __VA_ARGS__)
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// Hardware information per endpoint
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typedef struct hw_endpoint
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{
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// Is this a valid struct
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bool configured;
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// Transfer direction (i.e. IN is rx for host but tx for device)
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// allows us to common up transfer functions
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bool rx;
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uint8_t ep_addr;
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uint8_t next_pid;
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// Endpoint control register
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io_rw_32 *endpoint_control;
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// Buffer control register
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io_rw_32 *buffer_control;
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// Buffer pointer in usb dpram
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uint8_t *hw_data_buf;
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// Current transfer information
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bool active;
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uint16_t remaining_len;
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uint16_t xferred_len;
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// User buffer in main memory
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uint8_t *user_buf;
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// Data needed from EP descriptor
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uint16_t wMaxPacketSize;
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// Interrupt, bulk, etc
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uint8_t transfer_type;
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#if CFG_TUH_ENABLED
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// Only needed for host
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uint8_t dev_addr;
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// If interrupt endpoint
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uint8_t interrupt_num;
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#endif
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} hw_endpoint_t;
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void rp2040_usb_init(void);
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void hw_endpoint_xfer_start(struct hw_endpoint *ep, uint8_t *buffer, uint16_t total_len);
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bool hw_endpoint_xfer_continue(struct hw_endpoint *ep);
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void hw_endpoint_reset_transfer(struct hw_endpoint *ep);
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void _hw_endpoint_buffer_control_update32(struct hw_endpoint *ep, uint32_t and_mask, uint32_t or_mask);
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TU_ATTR_ALWAYS_INLINE static inline uint32_t _hw_endpoint_buffer_control_get_value32 (struct hw_endpoint *ep)
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{
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return *ep->buffer_control;
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}
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TU_ATTR_ALWAYS_INLINE static inline void _hw_endpoint_buffer_control_set_value32 (struct hw_endpoint *ep, uint32_t value)
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{
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return _hw_endpoint_buffer_control_update32(ep, 0, value);
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}
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TU_ATTR_ALWAYS_INLINE static inline void _hw_endpoint_buffer_control_set_mask32 (struct hw_endpoint *ep, uint32_t value)
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{
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return _hw_endpoint_buffer_control_update32(ep, ~value, value);
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}
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TU_ATTR_ALWAYS_INLINE static inline void _hw_endpoint_buffer_control_clear_mask32 (struct hw_endpoint *ep, uint32_t value)
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{
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return _hw_endpoint_buffer_control_update32(ep, ~value, 0);
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}
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static inline uintptr_t hw_data_offset (uint8_t *buf)
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{
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// Remove usb base from buffer pointer
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return (uintptr_t) buf ^ (uintptr_t) usb_dpram;
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}
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extern const char *ep_dir_string[];
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#endif
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