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Diffstat (limited to 'contrib/firmware/angie/c/include/usb.h')
| -rw-r--r-- | contrib/firmware/angie/c/include/usb.h | 273 |
1 files changed, 273 insertions, 0 deletions
diff --git a/contrib/firmware/angie/c/include/usb.h b/contrib/firmware/angie/c/include/usb.h new file mode 100644 index 0000000..0450d1d --- /dev/null +++ b/contrib/firmware/angie/c/include/usb.h @@ -0,0 +1,273 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/**************************************************************************** + File : usb.h * + Contents : usb communication handling header file for NanoXplore * + USB-JTAG ANGIE adapter hardware. * + Based on openULINK project code by: Martin Schmoelzer. * + Copyright 2023, Ahmed Errached BOUDJELIDA, NanoXplore SAS. * + <aboudjelida@nanoxplore.com> * + <ahmederrachedbjld@gmail.com> * +*****************************************************************************/ + +#ifndef __USB_H +#define __USB_H + +#include "reg_ezusb.h" +#include <stdint.h> +#include <stdbool.h> + +/* High and Low byte of a word (uint16_t) */ +#define HI8(word) (uint8_t)(((uint16_t)(word) >> 8) & 0xff) +#define LO8(word) (uint8_t)((uint16_t)(word) & 0xff) + +/* Convenience functions */ +#define STALL_EP0() (EP0CS |= EPSTALL) +#define CLEAR_IRQ() (USBINT = 0) + +/*********** USB descriptors. See section 9.5 of the USB 1.1 spec **********/ + +/* USB Descriptor Types. See USB 1.1 spec, page 187, table 9-5 */ +#define DESCRIPTOR_TYPE_DEVICE 0x01 +#define DESCRIPTOR_TYPE_CONFIGURATION 0x02 +#define DESCRIPTOR_TYPE_STRING 0x03 +#define DESCRIPTOR_TYPE_INTERFACE 0x04 +#define DESCRIPTOR_TYPE_ENDPOINT 0x05 + +#define STR_DESCR(len, ...) { (len) * 2 + 2, DESCRIPTOR_TYPE_STRING, { __VA_ARGS__ } } + +/** USB Device Descriptor. See USB 1.1 spec, pp. 196 - 198 */ +struct usb_device_descriptor { + uint8_t blength; /**< Size of this descriptor in bytes. */ + uint8_t bdescriptortype; /**< DEVICE Descriptor Type. */ + uint16_t bcdusb; /**< USB specification release number (BCD). */ + uint8_t bdeviceclass; /**< Class code. */ + uint8_t bdevicesubclass; /**< Subclass code. */ + uint8_t bdeviceprotocol; /**< Protocol code. */ + uint8_t bmaxpacketsize0; /**< Maximum packet size for EP0 (8, 16, 32, 64). */ + uint16_t idvendor; /**< USB Vendor ID. */ + uint16_t idproduct; /**< USB Product ID. */ + uint16_t bcddevice; /**< Device Release Number (BCD). */ + uint8_t imanufacturer; /**< Index of manufacturer string descriptor. */ + uint8_t iproduct; /**< Index of product string descriptor. */ + uint8_t iserialnumber; /**< Index of string descriptor containing serial #. */ + uint8_t bnumconfigurations; /**< Number of possible configurations. */ +}; + +/** USB Configuration Descriptor. See USB 1.1 spec, pp. 199 - 200 */ +struct usb_config_descriptor { + uint8_t blength; /**< Size of this descriptor in bytes. */ + uint8_t bdescriptortype; /**< CONFIGURATION descriptor type. */ + uint16_t wtotallength; /**< Combined total length of all descriptors. */ + uint8_t bnuminterfaces; /**< Number of interfaces in this configuration. */ + uint8_t bconfigurationvalue; /**< Value used to select this configuration. */ + uint8_t iconfiguration; /**< Index of configuration string descriptor. */ + uint8_t bmattributes; /**< Configuration characteristics. */ + uint8_t maxpower; /**< Maximum power consumption in 2 mA units. */ +}; + +/** USB Interface Descriptor. See USB 1.1 spec, pp. 201 - 203 */ +struct usb_interface_descriptor { + uint8_t blength; /**< Size of this descriptor in bytes. */ + uint8_t bdescriptortype; /**< INTERFACE descriptor type. */ + uint8_t binterfacenumber; /**< Interface number. */ + uint8_t balternatesetting; /**< Value used to select alternate setting. */ + uint8_t bnumendpoints; /**< Number of endpoints used by this interface. */ + uint8_t binterfaceclass; /**< Class code. */ + uint8_t binterfacesubclass; /**< Subclass code. */ + uint8_t binterfaceprotocol; /**< Protocol code. */ + uint8_t iinterface; /**< Index of interface string descriptor. */ +}; + +/** USB Endpoint Descriptor. See USB 1.1 spec, pp. 203 - 204 */ +struct usb_endpoint_descriptor { + uint8_t blength; /**< Size of this descriptor in bytes. */ + uint8_t bdescriptortype; /**< ENDPOINT descriptor type. */ + uint8_t bendpointaddress; /**< Endpoint Address: IN/OUT + EP number. */ + uint8_t bmattributes; /**< Endpoint Attributes: BULK/INTR/ISO/CTRL. */ + uint16_t wmaxpacketsize; /**< Maximum packet size for this endpoint. */ + uint8_t binterval; /**< Polling interval (in ms) for this endpoint. */ +}; + +/** USB Language Descriptor. See USB 1.1 spec, pp. 204 - 205 */ +struct usb_language_descriptor { + uint8_t blength; /**< Size of this descriptor in bytes. */ + uint8_t bdescriptortype; /**< STRING descriptor type. */ + uint16_t wlangid[]; /**< LANGID codes. */ +}; + +/** USB String Descriptor. See USB 1.1 spec, pp. 204 - 205 */ +struct usb_string_descriptor { + uint8_t blength; /**< Size of this descriptor in bytes. */ + uint8_t bdescriptortype; /**< STRING descriptor type. */ + uint16_t bstring[]; /**< UNICODE encoded string. */ +}; + +/********************** USB Control Endpoint 0 related *********************/ + +/** USB Control Setup Data. See USB 1.1 spec, pp. 183 - 185 */ +struct setup_data { + uint8_t bmrequesttype; /**< Characteristics of a request. */ + uint8_t brequest; /**< Specific request. */ + uint16_t wvalue; /**< Field that varies according to request. */ + uint16_t windex; /**< Field that varies according to request. */ + uint16_t wlength; /**< Number of bytes to transfer in data stage. */ +}; + +/* External declarations for variables that need to be accessed outside of + * the USB module */ +extern volatile bool ep1_out; +extern volatile bool ep1_in; + +extern volatile __xdata __at 0xE6B8 struct setup_data setup_data; + +/* + * USB Request Types (bmRequestType): See USB 1.1 spec, page 183, table 9-2 + * + * Bit 7: Data transfer direction + * 0 = Host-to-device + * 1 = Device-to-host + * Bit 6...5: Type + * 0 = Standard + * 1 = Class + * 2 = Vendor + * 3 = Reserved + * Bit 4...0: Recipient + * 0 = Device + * 1 = Interface + * 2 = Endpoint + * 3 = Other + * 4...31 = Reserved + */ + +#define USB_DIR_OUT 0x00 +#define USB_DIR_IN 0x80 + +#define USB_REQ_TYPE_STANDARD (0x00 << 5) +#define USB_REQ_TYPE_CLASS (0x01 << 5) +#define USB_REQ_TYPE_VENDOR (0x02 << 5) +#define USB_REQ_TYPE_RESERVED (0x03 << 5) + +#define USB_RECIP_DEVICE 0x00 +#define USB_RECIP_INTERFACE 0x01 +#define USB_RECIP_ENDPOINT 0x02 +#define USB_RECIP_OTHER 0x03 + +/* Clear Interface Request */ +#define CF_DEVICE (USB_DIR_OUT | USB_REQ_TYPE_STANDARD | USB_RECIP_DEVICE) +#define CF_INTERFACE (USB_DIR_OUT | USB_REQ_TYPE_STANDARD | USB_RECIP_INTERFACE) +#define CF_ENDPOINT (USB_DIR_OUT | USB_REQ_TYPE_STANDARD | USB_RECIP_ENDPOINT) + +/* Get Configuration Request */ +#define GC_DEVICE (USB_DIR_IN | USB_REQ_TYPE_STANDARD | USB_RECIP_DEVICE) + +/* Get Descriptor Request */ +#define GD_DEVICE (USB_DIR_IN | USB_REQ_TYPE_STANDARD | USB_RECIP_DEVICE) + +/* Get Interface Request */ +#define GI_INTERFACE (USB_DIR_IN | USB_REQ_TYPE_STANDARD | USB_RECIP_INTERFACE) + +/* Get Status Request: See USB 1.1 spec, page 190 */ +#define GS_DEVICE (USB_DIR_IN | USB_REQ_TYPE_STANDARD | USB_RECIP_DEVICE) +#define GS_INTERFACE (USB_DIR_IN | USB_REQ_TYPE_STANDARD | USB_RECIP_INTERFACE) +#define GS_ENDPOINT (USB_DIR_IN | USB_REQ_TYPE_STANDARD | USB_RECIP_ENDPOINT) + +/* Set Address Request is handled by EZ-USB core */ + +/* Set Configuration Request */ +#define SC_DEVICE (USB_DIR_OUT | USB_REQ_TYPE_STANDARD | USB_RECIP_DEVICE) + +/* Set Descriptor Request */ +#define SD_DEVICE (USB_DIR_OUT | USB_REQ_TYPE_STANDARD | USB_RECIP_DEVICE) + +/* Set Feature Request */ +#define SF_DEVICE (USB_DIR_OUT | USB_REQ_TYPE_STANDARD | USB_RECIP_DEVICE) +#define SF_INTERFACE (USB_DIR_OUT | USB_REQ_TYPE_STANDARD | USB_RECIP_INTERFACE) +#define SF_ENDPOINT (USB_DIR_OUT | USB_REQ_TYPE_STANDARD | USB_RECIP_ENDPOINT) + +/* Set Interface Request */ +#define SI_INTERFACE (USB_DIR_OUT | USB_REQ_TYPE_STANDARD | USB_RECIP_INTERFACE) + +/* Synch Frame Request */ +#define SY_ENDPOINT (USB_DIR_IN | USB_REQ_TYPE_STANDARD | USB_RECIP_ENDPOINT) + +/* USB Requests (bRequest): See USB 1.1 spec, table 9-4 on page 187 */ +#define GET_STATUS 0 +#define CLEAR_FEATURE 1 +/* Value '2' is reserved for future use */ +#define SET_FEATURE 3 +/* Value '4' is reserved for future use */ +#define SET_ADDRESS 5 +#define GET_DESCRIPTOR 6 +#define SET_DESCRIPTOR 7 +#define GET_CONFIGURATION 8 +#define SET_CONFIGURATION 9 +#define GET_INTERFACE 10 +#define SET_INTERFACE 11 +#define SYNCH_FRAME 12 + +/* Standard Feature Selectors: See USB 1.1 spec, table 9-6 on page 188 */ +#define DEVICE_REMOTE_WAKEUP 1 +#define ENDPOINT_HALT 0 + +/************************** EZ-USB specific stuff **************************/ +/** USB Interrupts. See AN2131-TRM, page 9-4 for details */ +enum usb_isr { + SUDAV_ISR = 13, + SOF_ISR, + SUTOK_ISR, + SUSPEND_ISR, + USBRESET_ISR, + HIGHSPEED_ISR, + EP0ACK_ISR, + STUB_ISR, + EP0IN_ISR, + EP0OUT_ISR, + EP1IN_ISR, + EP1OUT_ISR, + EP2_ISR, + EP4_ISR, + EP6_ISR, + EP8_ISR, + IBN_ISR, + EP0PINGNAK_ISR, + EP1PINGNAK_ISR, + EP2PINGNAK_ISR, + EP4PINGNAK_ISR, + EP6PINGNAK_ISR, + EP8PINGNAK_ISR, + ERRORLIMIT_ISR, + EP2PIDERROR_ISR, + EP4PIDERROR_ISR, + EP6PIDERROR_ISR, + EP8PIDERROR_ISR, + EP2PFLAG_ISR, + EP4PFLAG_ISR, + EP6PFLAG_ISR, + EP8PFLAG_ISR, + EP2EFLAG_ISR, + EP4EFLAG_ISR, + EP6EFLAG_ISR, + EP8EFLAG_ISR, + EP2FFLAG_ISR, + EP4FFLAG_ISR, + EP6FFLAG_ISR, + EP8FFLAG_ISR, + GPIFCOMPLETE_ISR, + GPIFWAVEFORM_ISR +}; + +/*************************** Function Prototypes ***************************/ +__xdata uint8_t *usb_get_endpoint_cs_reg(uint8_t ep); +void usb_reset_data_toggle(uint8_t ep); +bool usb_handle_get_status(void); +bool usb_handle_clear_feature(void); +bool usb_handle_set_feature(void); +bool usb_handle_get_descriptor(void); +void usb_handle_set_interface(void); +void usb_handle_setup_data(void); + +void ep_init(void); +void interrupt_init(void); +void io_init(void); + +#endif |