PicoSDK
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Outline
#define _HARDWARE_STRUCTS_USB_DPRAM_H
#include "hardware/address_mapped.h"
#include "hardware/regs/usb.h"
#define USB_NUM_ENDPOINTS
#define USB_MAX_ENDPOINTS
#define USB_HOST_INTERRUPT_ENDPOINTS
#define USB_BUF_CTRL_FULL
#define USB_BUF_CTRL_LAST
#define USB_BUF_CTRL_DATA0_PID
#define USB_BUF_CTRL_DATA1_PID
#define USB_BUF_CTRL_SEL
#define USB_BUF_CTRL_STALL
#define USB_BUF_CTRL_AVAIL
#define USB_BUF_CTRL_LEN_MASK
#define USB_BUF_CTRL_LEN_LSB
#define EP_CTRL_ENABLE_BITS
#define EP_CTRL_DOUBLE_BUFFERED_BITS
#define EP_CTRL_INTERRUPT_PER_BUFFER
#define EP_CTRL_INTERRUPT_PER_DOUBLE_BUFFER
#define EP_CTRL_INTERRUPT_ON_NAK
#define EP_CTRL_INTERRUPT_ON_STALL
#define EP_CTRL_BUFFER_TYPE_LSB
#define EP_CTRL_HOST_INTERRUPT_INTERVAL_LSB
#define USB_DPRAM_SIZE
#define USB_DPRAM_MAX
#define USB_MAX_ISO_PACKET_SIZE
#define USB_MAX_PACKET_SIZE
usb_device_dpram_t
usb_host_dpram_t
#define usb_dpram
#define usbh_dpram
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SourceVuRaspberry Pi Pico SDK and ExamplesPicoSDKsrc/rp2350/hardware_structs/include/hardware/structs/usb_dpram.h
 
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/** * Copyright (c) 2024 Raspberry Pi (Trading) Ltd. * * SPDX-License-Identifier: BSD-3-Clause *//* ... */ #ifndef _HARDWARE_STRUCTS_USB_DPRAM_H #define _HARDWARE_STRUCTS_USB_DPRAM_H #include "hardware/address_mapped.h" #include "hardware/regs/usb.h" // Reference to datasheet: https://datasheets.raspberrypi.com/rp2350/rp2350-datasheet.pdf#tab-registerlist_usb // // The _REG_ macro is intended to help make the register navigable in your IDE (for example, using the "Go to Definition" feature) // _REG_(x) will link to the corresponding register in hardware/regs/usb.h. // // Bit-field descriptions are of the form: // BITMASK [BITRANGE] FIELDNAME (RESETVALUE) DESCRIPTION // 0-15 #define USB_NUM_ENDPOINTS 16 // allow user to restrict number of endpoints available to save RAN #ifndef USB_MAX_ENDPOINTS #define USB_MAX_ENDPOINTS USB_NUM_ENDPOINTS #endif // 1-15 #define USB_HOST_INTERRUPT_ENDPOINTS (USB_NUM_ENDPOINTS - 1) // Endpoint buffer control bits #define USB_BUF_CTRL_FULL 0x00008000u #define USB_BUF_CTRL_LAST 0x00004000u #define USB_BUF_CTRL_DATA0_PID 0x00000000u #define USB_BUF_CTRL_DATA1_PID 0x00002000u #define USB_BUF_CTRL_SEL 0x00001000u #define USB_BUF_CTRL_STALL 0x00000800u #define USB_BUF_CTRL_AVAIL 0x00000400u #define USB_BUF_CTRL_LEN_MASK 0x000003FFu #define USB_BUF_CTRL_LEN_LSB 0 // ep_inout_ctrl bits #define EP_CTRL_ENABLE_BITS (1u << 31u) #define EP_CTRL_DOUBLE_BUFFERED_BITS (1u << 30) #define EP_CTRL_INTERRUPT_PER_BUFFER (1u << 29) #define EP_CTRL_INTERRUPT_PER_DOUBLE_BUFFER (1u << 28) #define EP_CTRL_INTERRUPT_ON_NAK (1u << 16) #define EP_CTRL_INTERRUPT_ON_STALL (1u << 17) #define EP_CTRL_BUFFER_TYPE_LSB 26u #define EP_CTRL_HOST_INTERRUPT_INTERVAL_LSB 16u #define USB_DPRAM_SIZE 4096u 19 defines // PICO_CONFIG: USB_DPRAM_MAX, Set amount of USB RAM used by USB system, min=0, max=4096, default=4096, group=hardware_usb // Allow user to claim some of the USB RAM for themselves #ifndef USB_DPRAM_MAX #define USB_DPRAM_MAX USB_DPRAM_SIZE #endif // Define maximum packet sizes #define USB_MAX_ISO_PACKET_SIZE 1023 #define USB_MAX_PACKET_SIZE 64 typedef struct { // 4K of DPSRAM at beginning. Note this supports 8, 16, and 32 bit accesses volatile uint8_t setup_packet[8]; // First 8 bytes are always for setup packets // Starts at ep1 struct usb_device_dpram_ep_ctrl { io_rw_32 in; io_rw_32 out; ...} ep_ctrl[USB_NUM_ENDPOINTS - 1]; // Starts at ep0 struct usb_device_dpram_ep_buf_ctrl { io_rw_32 in; io_rw_32 out; ...} ep_buf_ctrl[USB_NUM_ENDPOINTS]; // EP0 buffers are fixed. Assumes single buffered mode for EP0 uint8_t ep0_buf_a[0x40]; uint8_t ep0_buf_b[0x40]; // Rest of DPRAM can be carved up as needed uint8_t epx_data[USB_DPRAM_MAX - 0x180]; ...} usb_device_dpram_t; static_assert(sizeof(usb_device_dpram_t) == USB_DPRAM_MAX, ""); static_assert(offsetof(usb_device_dpram_t, epx_data) == 0x180, ""); typedef struct { // 4K of DPSRAM at beginning. Note this supports 8, 16, and 32 bit accesses volatile uint8_t setup_packet[8]; // First 8 bytes are always for setup packets // Interrupt endpoint control 1 -> 15 struct usb_host_dpram_ep_ctrl { io_rw_32 ctrl; io_rw_32 spare; ...} int_ep_ctrl[USB_HOST_INTERRUPT_ENDPOINTS]; io_rw_32 epx_buf_ctrl; io_rw_32 _spare0; // Interrupt endpoint buffer control struct usb_host_dpram_ep_buf_ctrl { io_rw_32 ctrl; io_rw_32 spare; ...} int_ep_buffer_ctrl[USB_HOST_INTERRUPT_ENDPOINTS]; io_rw_32 epx_ctrl; uint8_t _spare1[124]; // Should start at 0x180 uint8_t epx_data[USB_DPRAM_MAX - 0x180]; ...} usb_host_dpram_t; static_assert(sizeof(usb_host_dpram_t) == USB_DPRAM_MAX, ""); static_assert(offsetof(usb_host_dpram_t, epx_data) == 0x180, ""); #define usb_dpram ((usb_device_dpram_t *)USBCTRL_DPRAM_BASE) #define usbh_dpram ((usb_host_dpram_t *)USBCTRL_DPRAM_BASE) static_assert( USB_HOST_INTERRUPT_ENDPOINTS == 15, ""); /* ... */ #endif // _HARDWARE_STRUCTS_USB_DPRAM_H
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